include(GNUInstallDirs)
include(LLVMDistributionSupport)
include(LLVMProcessSources)
include(LLVM-Config)
include(DetermineGCCCompatible)
# get_subproject_title(titlevar)
# Set ${outvar} to the title of the current LLVM subproject (Clang, MLIR ...)
#
# The title is set in the subproject's top-level using the variable
# LLVM_SUBPROJECT_TITLE. If it does not exist, it is assumed it is LLVM itself.
# The title is not semantically significant, but use to create folders in
# CMake-generated IDE projects (Visual Studio/XCode).
function(get_subproject_title outvar)
if (LLVM_SUBPROJECT_TITLE)
set(${outvar} "${LLVM_SUBPROJECT_TITLE}" PARENT_SCOPE)
else ()
set(${outvar} "LLVM" PARENT_SCOPE)
endif ()
endfunction(get_subproject_title)
function(llvm_update_compile_flags name)
get_property(sources TARGET ${name} PROPERTY SOURCES)
if("${sources}" MATCHES "\\.c(;|$)")
set(update_src_props ON)
endif()
list(APPEND LLVM_COMPILE_CFLAGS " ${LLVM_COMPILE_FLAGS}")
# LLVM_REQUIRES_EH is an internal flag that individual targets can use to
# force EH
if(LLVM_REQUIRES_EH OR LLVM_ENABLE_EH)
if(NOT (LLVM_REQUIRES_RTTI OR LLVM_ENABLE_RTTI))
message(AUTHOR_WARNING "Exception handling requires RTTI. Enabling RTTI for ${name}")
set(LLVM_REQUIRES_RTTI ON)
endif()
if(MSVC)
list(APPEND LLVM_COMPILE_FLAGS "/EHsc")
endif()
else()
if(LLVM_COMPILER_IS_GCC_COMPATIBLE)
list(APPEND LLVM_COMPILE_FLAGS "-fno-exceptions")
if(LLVM_ENABLE_UNWIND_TABLES)
list(APPEND LLVM_COMPILE_FLAGS "-funwind-tables")
else()
list(APPEND LLVM_COMPILE_FLAGS "-fno-unwind-tables")
list(APPEND LLVM_COMPILE_FLAGS "-fno-asynchronous-unwind-tables")
endif()
elseif(MSVC)
list(APPEND LLVM_COMPILE_DEFINITIONS _HAS_EXCEPTIONS=0)
list(APPEND LLVM_COMPILE_FLAGS "/EHs-c-")
elseif (CMAKE_CXX_COMPILER_ID MATCHES "XL")
list(APPEND LLVM_COMPILE_FLAGS "-qnoeh")
endif()
endif()
# LLVM_REQUIRES_RTTI is an internal flag that individual
# targets can use to force RTTI
set(LLVM_CONFIG_HAS_RTTI YES CACHE INTERNAL "")
if(NOT (LLVM_REQUIRES_RTTI OR LLVM_ENABLE_RTTI))
set(LLVM_CONFIG_HAS_RTTI NO CACHE INTERNAL "")
list(APPEND LLVM_COMPILE_DEFINITIONS GTEST_HAS_RTTI=0)
if (LLVM_COMPILER_IS_GCC_COMPATIBLE)
list(APPEND LLVM_COMPILE_FLAGS "-fno-rtti")
elseif (MSVC)
list(APPEND LLVM_COMPILE_FLAGS "/GR-")
elseif (CMAKE_CXX_COMPILER_ID MATCHES "XL")
list(APPEND LLVM_COMPILE_FLAGS "-qnortti")
endif ()
elseif(MSVC)
list(APPEND LLVM_COMPILE_FLAGS "/GR")
endif()
# Assume that;
# - LLVM_COMPILE_FLAGS is list.
# - PROPERTY COMPILE_FLAGS is string.
string(REPLACE ";" " " target_compile_flags " ${LLVM_COMPILE_FLAGS}")
string(REPLACE ";" " " target_compile_cflags " ${LLVM_COMPILE_CFLAGS}")
if(update_src_props)
foreach(fn ${sources})
get_filename_component(suf ${fn} EXT)
if("${suf}" STREQUAL ".cpp")
set_property(SOURCE ${fn} APPEND_STRING PROPERTY
COMPILE_FLAGS "${target_compile_flags}")
endif()
if("${suf}" STREQUAL ".c")
set_property(SOURCE ${fn} APPEND_STRING PROPERTY
COMPILE_FLAGS "${target_compile_cflags}")
endif()
endforeach()
else()
# Update target props, since all sources are C++.
set_property(TARGET ${name} APPEND_STRING PROPERTY
COMPILE_FLAGS "${target_compile_flags}")
endif()
set_property(TARGET ${name} APPEND PROPERTY COMPILE_DEFINITIONS ${LLVM_COMPILE_DEFINITIONS})
endfunction()
function(add_llvm_symbol_exports target_name export_file)
if(${CMAKE_SYSTEM_NAME} MATCHES "Darwin")
set(native_export_file "${target_name}.exports")
add_custom_command(OUTPUT ${native_export_file}
COMMAND sed -e "s/^/_/" < ${export_file} > ${native_export_file}
DEPENDS ${export_file}
VERBATIM
COMMENT "Creating export file for ${target_name}")
set_property(TARGET ${target_name} APPEND_STRING PROPERTY
LINK_FLAGS " -Wl,-exported_symbols_list,\"${CMAKE_CURRENT_BINARY_DIR}/${native_export_file}\"")
elseif(${CMAKE_SYSTEM_NAME} MATCHES "AIX")
# FIXME: `-Wl,-bE:` bypasses whatever handling there is in the build
# compiler driver to defer to the specified export list.
set(native_export_file "${export_file}")
set_property(TARGET ${target_name} APPEND_STRING PROPERTY
LINK_FLAGS " -Wl,-bE:${export_file}")
elseif(LLVM_HAVE_LINK_VERSION_SCRIPT)
# Gold and BFD ld require a version script rather than a plain list.
set(native_export_file "${target_name}.exports")
# FIXME: Don't write the "local:" line on OpenBSD.
# in the export file, also add a linker script to version LLVM symbols (form: LLVM_N.M)
add_custom_command(OUTPUT ${native_export_file}
COMMAND "${Python3_EXECUTABLE}" "-c"
"import sys; \
lines = [' ' + l.rstrip() for l in sys.stdin] + [' local: *;']; \
print('LLVM_${LLVM_VERSION_MAJOR}.${LLVM_VERSION_MINOR} {'); \
print(' global:') if len(lines) > 1 else None; \
print(';\\n'.join(lines) + '\\n};')"
< ${export_file} > ${native_export_file}
DEPENDS ${export_file}
VERBATIM
COMMENT "Creating export file for ${target_name}")
if (${LLVM_LINKER_IS_SOLARISLD})
set_property(TARGET ${target_name} APPEND_STRING PROPERTY
LINK_FLAGS " -Wl,-M,\"${CMAKE_CURRENT_BINARY_DIR}/${native_export_file}\"")
else()
set_property(TARGET ${target_name} APPEND_STRING PROPERTY
LINK_FLAGS " -Wl,--version-script,\"${CMAKE_CURRENT_BINARY_DIR}/${native_export_file}\"")
endif()
elseif(WIN32)
set(native_export_file "${target_name}.def")
add_custom_command(OUTPUT ${native_export_file}
COMMAND "${Python3_EXECUTABLE}" -c "import sys;print(''.join(['EXPORTS\\n']+sys.stdin.readlines(),))"
< ${export_file} > ${native_export_file}
DEPENDS ${export_file}
VERBATIM
COMMENT "Creating export file for ${target_name}")
set(export_file_linker_flag "${CMAKE_CURRENT_BINARY_DIR}/${native_export_file}")
if(MSVC)
# cl.exe or clang-cl, i.e. MSVC style command line interface
set(export_file_linker_flag "/DEF:\"${export_file_linker_flag}\"")
elseif(CMAKE_CXX_SIMULATE_ID STREQUAL "MSVC")
# clang in msvc mode, calling a link.exe/lld-link style linker
set(export_file_linker_flag "-Wl,/DEF:\"${export_file_linker_flag}\"")
elseif(MINGW)
# ${export_file_linker_flag}, which is the plain file name, works as is
# when passed to the compiler driver, which then passes it on to the
# linker as an input file.
set(export_file_linker_flag "\"${export_file_linker_flag}\"")
else()
message(FATAL_ERROR "Unsupported Windows toolchain")
endif()
set_property(TARGET ${target_name} APPEND_STRING PROPERTY
LINK_FLAGS " ${export_file_linker_flag}")
endif()
add_custom_target(${target_name}_exports DEPENDS ${native_export_file})
get_subproject_title(subproject_title)
set_target_properties(${target_name}_exports PROPERTIES FOLDER "${subproject_title}/API")
get_property(srcs TARGET ${target_name} PROPERTY SOURCES)
foreach(src ${srcs})
get_filename_component(extension ${src} EXT)
if(extension STREQUAL ".cpp")
set(first_source_file ${src})
break()
endif()
endforeach()
# Force re-linking when the exports file changes. Actually, it
# forces recompilation of the source file. The LINK_DEPENDS target
# property only works for makefile-based generators.
# FIXME: This is not safe because this will create the same target
# ${native_export_file} in several different file:
# - One where we emitted ${target_name}_exports
# - One where we emitted the build command for the following object.
# set_property(SOURCE ${first_source_file} APPEND PROPERTY
# OBJECT_DEPENDS ${CMAKE_CURRENT_BINARY_DIR}/${native_export_file})
set_property(DIRECTORY APPEND
PROPERTY ADDITIONAL_MAKE_CLEAN_FILES ${native_export_file})
add_dependencies(${target_name} ${target_name}_exports)
# Add dependency to *_exports later -- CMake issue 14747
list(APPEND LLVM_COMMON_DEPENDS ${target_name}_exports)
set(LLVM_COMMON_DEPENDS ${LLVM_COMMON_DEPENDS} PARENT_SCOPE)
endfunction(add_llvm_symbol_exports)
if (NOT DEFINED LLVM_LINKER_DETECTED AND NOT WIN32)
# Detect what linker we have here.
if(APPLE)
# Linkers with ld64-compatible flags.
set(version_flag "-Wl,-v")
else()
# Linkers with BFD ld-compatible flags.
set(version_flag "-Wl,--version")
endif()
if (CMAKE_HOST_WIN32)
set(DEVNULL "NUL")
else()
set(DEVNULL "/dev/null")
endif()
if(LLVM_USE_LINKER)
set(command ${CMAKE_C_COMPILER} -fuse-ld=${LLVM_USE_LINKER} ${version_flag} -o ${DEVNULL})
else()
separate_arguments(flags UNIX_COMMAND "${CMAKE_EXE_LINKER_FLAGS}")
set(command ${CMAKE_C_COMPILER} ${flags} ${version_flag} -o ${DEVNULL})
endif()
execute_process(
COMMAND ${command}
OUTPUT_VARIABLE stdout
ERROR_VARIABLE stderr
)
if(APPLE)
if("${stderr}" MATCHES "PROGRAM:ld")
set(LLVM_LINKER_DETECTED YES CACHE INTERNAL "")
set(LLVM_LINKER_IS_APPLE YES CACHE INTERNAL "")
message(STATUS "Linker detection: Apple")
elseif("${stderr}" MATCHES "^LLD" OR
"${stdout}" MATCHES "^LLD")
set(LLVM_LINKER_DETECTED YES CACHE INTERNAL "")
set(LLVM_LINKER_IS_LLD YES CACHE INTERNAL "")
message(STATUS "Linker detection: lld")
else()
set(LLVM_LINKER_DETECTED NO CACHE INTERNAL "")
message(STATUS "Linker detection: unknown")
endif()
else()
if("${stdout}" MATCHES "^mold")
set(LLVM_LINKER_DETECTED YES CACHE INTERNAL "")
set(LLVM_LINKER_IS_MOLD YES CACHE INTERNAL "")
message(STATUS "Linker detection: mold")
elseif("${stdout}" MATCHES "GNU gold")
set(LLVM_LINKER_DETECTED YES CACHE INTERNAL "")
set(LLVM_LINKER_IS_GOLD YES CACHE INTERNAL "")
message(STATUS "Linker detection: GNU Gold")
elseif("${stdout}" MATCHES "^LLD")
set(LLVM_LINKER_DETECTED YES CACHE INTERNAL "")
set(LLVM_LINKER_IS_LLD YES CACHE INTERNAL "")
message(STATUS "Linker detection: LLD")
elseif("${stdout}" MATCHES "GNU ld")
set(LLVM_LINKER_DETECTED YES CACHE INTERNAL "")
set(LLVM_LINKER_IS_GNULD YES CACHE INTERNAL "")
message(STATUS "Linker detection: GNU ld")
elseif("${stderr}" MATCHES "(illumos)" OR
"${stdout}" MATCHES "(illumos)")
set(LLVM_LINKER_DETECTED YES CACHE INTERNAL "")
set(LLVM_LINKER_IS_SOLARISLD YES CACHE INTERNAL "")
set(LLVM_LINKER_IS_SOLARISLD_ILLUMOS YES CACHE INTERNAL "")
message(STATUS "Linker detection: Solaris ld (illumos)")
elseif("${stderr}" MATCHES "Solaris Link Editors" OR
"${stdout}" MATCHES "Solaris Link Editors")
set(LLVM_LINKER_DETECTED YES CACHE INTERNAL "")
set(LLVM_LINKER_IS_SOLARISLD YES CACHE INTERNAL "")
message(STATUS "Linker detection: Solaris ld")
else()
set(LLVM_LINKER_DETECTED NO CACHE INTERNAL "")
message(STATUS "Linker detection: unknown")
endif()
endif()
if(${CMAKE_SYSTEM_NAME} MATCHES "Darwin")
include(CheckLinkerFlag)
# Linkers that support Darwin allow a setting to internalize all symbol exports,
# aiding in reducing binary size and often is applicable for executables.
check_linker_flag(C "-Wl,-no_exported_symbols" LLVM_LINKER_SUPPORTS_NO_EXPORTED_SYMBOLS)
if (NOT LLVM_USE_LINKER)
# Apple's linker complains about duplicate libraries, which CMake likes to do
# to support ELF platforms. To silence that warning, we can use
# -no_warn_duplicate_libraries, but only in versions of the linker that
# support that flag.
check_linker_flag(C "-Wl,-no_warn_duplicate_libraries" LLVM_LINKER_SUPPORTS_NO_WARN_DUPLICATE_LIBRARIES)
else()
set(LLVM_LINKER_SUPPORTS_NO_WARN_DUPLICATE_LIBRARIES OFF CACHE INTERNAL "")
endif()
else()
set(LLVM_LINKER_SUPPORTS_NO_EXPORTED_SYMBOLS OFF CACHE INTERNAL "")
endif()
endif()
function(add_link_opts target_name)
get_llvm_distribution(${target_name} in_distribution in_distribution_var)
if(NOT in_distribution)
# Don't LTO optimize targets that aren't part of any distribution.
if (LLVM_ENABLE_LTO)
# We may consider avoiding LTO altogether by using -fembed-bitcode
# and teaching the linker to select machine code from .o files, see
# https://lists.llvm.org/pipermail/llvm-dev/2021-April/149843.html
if((UNIX OR MINGW) AND LINKER_IS_LLD)
set_property(TARGET ${target_name} APPEND_STRING PROPERTY
LINK_FLAGS " -Wl,--lto-O0")
elseif(LINKER_IS_LLD_LINK)
set_property(TARGET ${target_name} APPEND_STRING PROPERTY
LINK_FLAGS " /opt:lldlto=0")
elseif(APPLE AND NOT uppercase_LLVM_ENABLE_LTO STREQUAL "THIN")
set_property(TARGET ${target_name} APPEND_STRING PROPERTY
LINK_FLAGS " -Wl,-mllvm,-O0")
endif()
endif()
endif()
# Don't use linker optimizations in debug builds since it slows down the
# linker in a context where the optimizations are not important.
if (NOT uppercase_CMAKE_BUILD_TYPE STREQUAL "DEBUG")
if(NOT LLVM_NO_DEAD_STRIP)
if(${CMAKE_SYSTEM_NAME} MATCHES "Darwin")
# ld64's implementation of -dead_strip breaks tools that use plugins.
set_property(TARGET ${target_name} APPEND_STRING PROPERTY
LINK_FLAGS " -Wl,-dead_strip")
elseif(${CMAKE_SYSTEM_NAME} MATCHES "SunOS" AND LLVM_LINKER_IS_SOLARISLD)
# Support for ld -z discard-unused=sections was only added in
# Solaris 11.4. GNU ld ignores it, but warns every time.
include(CheckLinkerFlag)
check_linker_flag(CXX "-Wl,-z,discard-unused=sections" LINKER_SUPPORTS_Z_DISCARD_UNUSED)
if (LINKER_SUPPORTS_Z_DISCARD_UNUSED)
set_property(TARGET ${target_name} APPEND_STRING PROPERTY
LINK_FLAGS " -Wl,-z,discard-unused=sections")
endif()
elseif(NOT MSVC AND NOT CMAKE_SYSTEM_NAME MATCHES "AIX|OS390")
# TODO Revisit this later on z/OS.
set_property(TARGET ${target_name} APPEND_STRING PROPERTY
LINK_FLAGS " -Wl,--gc-sections")
endif()
else() #LLVM_NO_DEAD_STRIP
if(${CMAKE_SYSTEM_NAME} MATCHES "AIX")
set_property(TARGET ${target_name} APPEND_STRING PROPERTY
LINK_FLAGS " -Wl,-bnogc")
endif()
endif()
endif()
if(LLVM_LINKER_SUPPORTS_NO_WARN_DUPLICATE_LIBRARIES)
set_property(TARGET ${target_name} APPEND_STRING PROPERTY
LINK_FLAGS " -Wl,-no_warn_duplicate_libraries")
endif()
if(ARG_SUPPORT_PLUGINS AND ${CMAKE_SYSTEM_NAME} MATCHES "AIX")
set_property(TARGET ${target_name} APPEND_STRING PROPERTY
LINK_FLAGS " -Wl,-brtl")
endif()
endfunction(add_link_opts)
# Set each output directory according to ${CMAKE_CONFIGURATION_TYPES}.
# Note: Don't set variables CMAKE_*_OUTPUT_DIRECTORY any more,
# or a certain builder, for eaxample, msbuild.exe, would be confused.
function(set_output_directory target)
cmake_parse_arguments(ARG "" "BINARY_DIR;LIBRARY_DIR" "" ${ARGN})
# module_dir -- corresponding to LIBRARY_OUTPUT_DIRECTORY.
# It affects output of add_library(MODULE).
if(WIN32 OR CYGWIN)
# DLL platform
set(module_dir ${ARG_BINARY_DIR})
else()
set(module_dir ${ARG_LIBRARY_DIR})
endif()
if(NOT "${CMAKE_CFG_INTDIR}" STREQUAL ".")
foreach(build_mode ${CMAKE_CONFIGURATION_TYPES})
string(TOUPPER "${build_mode}" CONFIG_SUFFIX)
if(ARG_BINARY_DIR)
string(REPLACE ${CMAKE_CFG_INTDIR} ${build_mode} bi ${ARG_BINARY_DIR})
set_target_properties(${target} PROPERTIES "RUNTIME_OUTPUT_DIRECTORY_${CONFIG_SUFFIX}" ${bi})
endif()
if(ARG_LIBRARY_DIR)
string(REPLACE ${CMAKE_CFG_INTDIR} ${build_mode} li ${ARG_LIBRARY_DIR})
set_target_properties(${target} PROPERTIES "ARCHIVE_OUTPUT_DIRECTORY_${CONFIG_SUFFIX}" ${li})
endif()
if(module_dir)
string(REPLACE ${CMAKE_CFG_INTDIR} ${build_mode} mi ${module_dir})
set_target_properties(${target} PROPERTIES "LIBRARY_OUTPUT_DIRECTORY_${CONFIG_SUFFIX}" ${mi})
endif()
endforeach()
else()
if(ARG_BINARY_DIR)
set_target_properties(${target} PROPERTIES RUNTIME_OUTPUT_DIRECTORY ${ARG_BINARY_DIR})
endif()
if(ARG_LIBRARY_DIR)
set_target_properties(${target} PROPERTIES ARCHIVE_OUTPUT_DIRECTORY ${ARG_LIBRARY_DIR})
endif()
if(module_dir)
set_target_properties(${target} PROPERTIES LIBRARY_OUTPUT_DIRECTORY ${module_dir})
endif()
endif()
endfunction()
# If on Windows and building with MSVC, add the resource script containing the
# VERSIONINFO data to the project. This embeds version resource information
# into the output .exe or .dll.
# TODO: Enable for MinGW Windows builds too.
#
function(add_windows_version_resource_file OUT_VAR)
set(sources ${ARGN})
if (MSVC AND CMAKE_HOST_SYSTEM_NAME STREQUAL "Windows")
set(resource_file ${LLVM_SOURCE_DIR}/resources/windows_version_resource.rc)
if(EXISTS ${resource_file})
set(sources ${sources} ${resource_file})
source_group("Resource Files" ${resource_file})
set(windows_resource_file ${resource_file} PARENT_SCOPE)
endif()
endif(MSVC AND CMAKE_HOST_SYSTEM_NAME STREQUAL "Windows")
set(${OUT_VAR} ${sources} PARENT_SCOPE)
endfunction(add_windows_version_resource_file)
# set_windows_version_resource_properties(name resource_file...
# VERSION_MAJOR int
# Optional major version number (defaults to LLVM_VERSION_MAJOR)
# VERSION_MINOR int
# Optional minor version number (defaults to LLVM_VERSION_MINOR)
# VERSION_PATCHLEVEL int
# Optional patchlevel version number (defaults to LLVM_VERSION_PATCH)
# VERSION_STRING
# Optional version string (defaults to PACKAGE_VERSION)
# PRODUCT_NAME
# Optional product name string (defaults to "LLVM")
# )
function(set_windows_version_resource_properties name resource_file)
cmake_parse_arguments(ARG
""
"VERSION_MAJOR;VERSION_MINOR;VERSION_PATCHLEVEL;VERSION_STRING;PRODUCT_NAME"
""
${ARGN})
if (NOT DEFINED ARG_VERSION_MAJOR)
if (${LLVM_VERSION_MAJOR})
set(ARG_VERSION_MAJOR ${LLVM_VERSION_MAJOR})
else()
set(ARG_VERSION_MAJOR 0)
endif()
endif()
if (NOT DEFINED ARG_VERSION_MINOR)
if (${LLVM_VERSION_MINOR})
set(ARG_VERSION_MINOR ${LLVM_VERSION_MINOR})
else()
set(ARG_VERSION_MINOR 0)
endif()
endif()
if (NOT DEFINED ARG_VERSION_PATCHLEVEL)
if (${LLVM_VERSION_PATCH})
set(ARG_VERSION_PATCHLEVEL ${LLVM_VERSION_PATCH})
else()
set(ARG_VERSION_PATCHLEVEL 0)
endif()
endif()
if (NOT DEFINED ARG_VERSION_STRING)
if (${PACKAGE_VERSION})
set(ARG_VERSION_STRING ${PACKAGE_VERSION})
else()
set(ARG_VERSION_STRING 0)
endif()
endif()
if (NOT DEFINED ARG_PRODUCT_NAME)
set(ARG_PRODUCT_NAME "LLVM")
endif()
set_property(SOURCE ${resource_file}
PROPERTY COMPILE_FLAGS /nologo)
set_property(SOURCE ${resource_file}
PROPERTY COMPILE_DEFINITIONS
"RC_VERSION_FIELD_1=${ARG_VERSION_MAJOR}"
"RC_VERSION_FIELD_2=${ARG_VERSION_MINOR}"
"RC_VERSION_FIELD_3=${ARG_VERSION_PATCHLEVEL}"
"RC_VERSION_FIELD_4=0"
"RC_FILE_VERSION=\"${ARG_VERSION_STRING}\""
"RC_INTERNAL_NAME=\"${name}\""
"RC_PRODUCT_NAME=\"${ARG_PRODUCT_NAME}\""
"RC_PRODUCT_VERSION=\"${ARG_VERSION_STRING}\"")
endfunction(set_windows_version_resource_properties)
# llvm_add_library(name sources...
# SHARED;STATIC
# STATIC by default w/o BUILD_SHARED_LIBS.
# SHARED by default w/ BUILD_SHARED_LIBS.
# OBJECT
# Also create an OBJECT library target. Default if STATIC && SHARED.
# MODULE
# Target ${name} might not be created on unsupported platforms.
# Check with "if(TARGET ${name})".
# DISABLE_LLVM_LINK_LLVM_DYLIB
# Do not link this library to libLLVM, even if
# LLVM_LINK_LLVM_DYLIB is enabled.
# OUTPUT_NAME name
# Corresponds to OUTPUT_NAME in target properties.
# DEPENDS targets...
# Same semantics as add_dependencies().
# LINK_COMPONENTS components...
# Same as the variable LLVM_LINK_COMPONENTS.
# LINK_LIBS lib_targets...
# Same semantics as target_link_libraries().
# ADDITIONAL_HEADERS
# May specify header files for IDE generators.
# SONAME
# Should set SONAME link flags and create symlinks
# NO_INSTALL_RPATH
# Suppress default RPATH settings in shared libraries.
# PLUGIN_TOOL
# The tool (i.e. cmake target) that this plugin will link against
# COMPONENT_LIB
# This is used to specify that this is a component library of
# LLVM which means that the source resides in llvm/lib/ and it is a
# candidate for inclusion into libLLVM.so.
# )
function(llvm_add_library name)
cmake_parse_arguments(ARG
"MODULE;SHARED;STATIC;OBJECT;DISABLE_LLVM_LINK_LLVM_DYLIB;SONAME;NO_INSTALL_RPATH;COMPONENT_LIB"
"OUTPUT_NAME;PLUGIN_TOOL;ENTITLEMENTS;BUNDLE_PATH"
"ADDITIONAL_HEADERS;DEPENDS;LINK_COMPONENTS;LINK_LIBS;OBJLIBS"
${ARGN})
list(APPEND LLVM_COMMON_DEPENDS ${ARG_DEPENDS})
if(ARG_ADDITIONAL_HEADERS)
# Pass through ADDITIONAL_HEADERS.
set(ARG_ADDITIONAL_HEADERS ADDITIONAL_HEADERS ${ARG_ADDITIONAL_HEADERS})
endif()
if(ARG_OBJLIBS)
set(ALL_FILES ${ARG_OBJLIBS})
else()
llvm_process_sources(ALL_FILES ${ARG_UNPARSED_ARGUMENTS} ${ARG_ADDITIONAL_HEADERS})
endif()
if(ARG_MODULE)
if(ARG_SHARED OR ARG_STATIC)
message(WARNING "MODULE with SHARED|STATIC doesn't make sense.")
endif()
# Plugins that link against a tool are allowed even when plugins in general are not
if(NOT LLVM_ENABLE_PLUGINS AND NOT (ARG_PLUGIN_TOOL AND LLVM_EXPORT_SYMBOLS_FOR_PLUGINS))
message(STATUS "${name} ignored -- Loadable modules not supported on this platform.")
return()
endif()
else()
if(ARG_PLUGIN_TOOL)
message(WARNING "PLUGIN_TOOL without MODULE doesn't make sense.")
endif()
if(BUILD_SHARED_LIBS AND NOT ARG_STATIC)
set(ARG_SHARED TRUE)
endif()
if(NOT ARG_SHARED)
set(ARG_STATIC TRUE)
endif()
endif()
get_subproject_title(subproject_title)
# Generate objlib
if((ARG_SHARED AND ARG_STATIC) OR ARG_OBJECT)
# Generate an obj library for both targets.
set(obj_name "obj.${name}")
add_library(${obj_name} OBJECT EXCLUDE_FROM_ALL
${ALL_FILES}
)
llvm_update_compile_flags(${obj_name})
if(CMAKE_GENERATOR STREQUAL "Xcode")
set(DUMMY_FILE ${CMAKE_CURRENT_BINARY_DIR}/Dummy.c)
file(WRITE ${DUMMY_FILE} "// This file intentionally empty\n")
set_property(SOURCE ${DUMMY_FILE} APPEND_STRING PROPERTY COMPILE_FLAGS "-Wno-empty-translation-unit")
endif()
set(ALL_FILES "$<TARGET_OBJECTS:${obj_name}>" ${DUMMY_FILE})
# Do add_dependencies(obj) later due to CMake issue 14747.
list(APPEND objlibs ${obj_name})
# Bring in the target include directories from our original target.
target_include_directories(${obj_name} PRIVATE $<TARGET_PROPERTY:${name},INCLUDE_DIRECTORIES>)
set_target_properties(${obj_name} PROPERTIES FOLDER "${subproject_title}/Object Libraries")
if(ARG_DEPENDS)
add_dependencies(${obj_name} ${ARG_DEPENDS})
endif()
# Treat link libraries like PUBLIC dependencies. LINK_LIBS might
# result in generating header files. Add a dependendency so that
# the generated header is created before this object library.
if(ARG_LINK_LIBS)
cmake_parse_arguments(LINK_LIBS_ARG
""
""
"PUBLIC;PRIVATE"
${ARG_LINK_LIBS})
foreach(link_lib ${LINK_LIBS_ARG_PUBLIC})
if(LLVM_PTHREAD_LIB)
# Can't specify a dependence on -lpthread
if(NOT ${link_lib} STREQUAL ${LLVM_PTHREAD_LIB})
add_dependencies(${obj_name} ${link_lib})
endif()
else()
add_dependencies(${obj_name} ${link_lib})
endif()
endforeach()
endif()
if(ARG_DISABLE_LLVM_LINK_LLVM_DYLIB)
target_compile_definitions(${obj_name} PRIVATE LLVM_BUILD_STATIC)
endif()
endif()
if(ARG_SHARED AND ARG_STATIC)
# static
set(name_static "${name}_static")
if(ARG_OUTPUT_NAME)
set(output_name OUTPUT_NAME "${ARG_OUTPUT_NAME}")
endif()
# DEPENDS has been appended to LLVM_COMMON_LIBS.
llvm_add_library(${name_static} STATIC
${output_name}
OBJLIBS ${ALL_FILES} # objlib
LINK_LIBS ${ARG_LINK_LIBS}
LINK_COMPONENTS ${ARG_LINK_COMPONENTS}
)
set_target_properties(${name_static} PROPERTIES FOLDER "${subproject_title}/Libraries")
# Bring in the target link info from our original target.
target_link_directories(${name_static} PRIVATE $<TARGET_PROPERTY:${name},LINK_DIRECTORIES>)
target_link_libraries(${name_static} PRIVATE $<TARGET_PROPERTY:${name},LINK_LIBRARIES>)
# FIXME: Add name_static to anywhere in TARGET ${name}'s PROPERTY.
set(ARG_STATIC)
endif()
if(ARG_MODULE)
add_library(${name} MODULE ${ALL_FILES})
elseif(ARG_SHARED)
add_windows_version_resource_file(ALL_FILES ${ALL_FILES})
add_library(${name} SHARED ${ALL_FILES})
else()
add_library(${name} STATIC ${ALL_FILES})
endif()
set_target_properties(${name} PROPERTIES FOLDER "${subproject_title}/Libraries")
## If were compiling with clang-cl use /Zc:dllexportInlines- to exclude inline
## class members from being dllexport'ed to reduce compile time.
## This will also keep us below the 64k exported symbol limit
## https://blog.llvm.org/2018/11/30-faster-windows-builds-with-clang-cl_14.html
if(LLVM_BUILD_LLVM_DYLIB AND NOT LLVM_DYLIB_EXPORT_INLINES AND
MSVC AND CMAKE_CXX_COMPILER_ID MATCHES Clang)
target_compile_options(${name} PUBLIC /Zc:dllexportInlines-)
if(TARGET ${obj_name})
target_compile_options(${obj_name} PUBLIC /Zc:dllexportInlines-)
endif()
endif()
if(ARG_COMPONENT_LIB)
set_target_properties(${name} PROPERTIES LLVM_COMPONENT TRUE)
if(LLVM_BUILD_LLVM_DYLIB OR BUILD_SHARED_LIBS)
target_compile_definitions(${name} PRIVATE LLVM_EXPORTS)
endif()
# When building shared objects for each target there are some internal APIs
# that are used across shared objects which we can't hide.
if (LLVM_BUILD_LLVM_DYLIB_VIS AND NOT BUILD_SHARED_LIBS AND NOT APPLE AND
(NOT (WIN32 OR CYGWIN) OR (MINGW AND CMAKE_CXX_COMPILER_ID MATCHES "Clang")) AND
NOT (${CMAKE_SYSTEM_NAME} MATCHES "AIX") AND
NOT DEFINED CMAKE_CXX_VISIBILITY_PRESET)
set_target_properties(${name} PROPERTIES
C_VISIBILITY_PRESET hidden
CXX_VISIBILITY_PRESET hidden
VISIBILITY_INLINES_HIDDEN YES)
endif()
set_property(GLOBAL APPEND PROPERTY LLVM_COMPONENT_LIBS ${name})
endif()
if(NOT ARG_NO_INSTALL_RPATH)
if(ARG_MODULE OR ARG_SHARED)
llvm_setup_rpath(${name})
endif()
endif()
setup_dependency_debugging(${name} ${LLVM_COMMON_DEPENDS})
if(DEFINED windows_resource_file)
set_windows_version_resource_properties(${name} ${windows_resource_file})
set(windows_resource_file ${windows_resource_file} PARENT_SCOPE)
endif()
set_output_directory(${name} BINARY_DIR ${LLVM_RUNTIME_OUTPUT_INTDIR} LIBRARY_DIR ${LLVM_LIBRARY_OUTPUT_INTDIR})
# $<TARGET_OBJECTS> doesn't require compile flags.
if(NOT obj_name)
llvm_update_compile_flags(${name})
endif()
add_link_opts( ${name} )
if(ARG_OUTPUT_NAME)
set_target_properties(${name}
PROPERTIES
OUTPUT_NAME ${ARG_OUTPUT_NAME}
)
endif()
if(ARG_MODULE)
set_target_properties(${name} PROPERTIES
PREFIX ""
SUFFIX ${LLVM_PLUGIN_EXT}
)
endif()
if(ARG_SHARED)
if(MSVC)
set_target_properties(${name} PROPERTIES
PREFIX ""
)
endif()
# Set SOVERSION on shared libraries that lack explicit SONAME
# specifier, on *nix systems that are not Darwin.
if(UNIX AND NOT APPLE AND NOT ARG_SONAME)
set_target_properties(${name}
PROPERTIES
# Since 18.1.0, the ABI version is indicated by the major and minor version.
SOVERSION ${LLVM_VERSION_MAJOR}.${LLVM_VERSION_MINOR}${LLVM_VERSION_SUFFIX}
VERSION ${LLVM_VERSION_MAJOR}.${LLVM_VERSION_MINOR}${LLVM_VERSION_SUFFIX})
endif()
endif()
if(ARG_MODULE OR ARG_SHARED)
# Do not add -Dname_EXPORTS to the command-line when building files in this
# target. Doing so is actively harmful for the modules build because it
# creates extra module variants, and not useful because we don't use these
# macros.
set_target_properties( ${name} PROPERTIES DEFINE_SYMBOL "" )
if (LLVM_EXPORTED_SYMBOL_FILE)
add_llvm_symbol_exports( ${name} ${LLVM_EXPORTED_SYMBOL_FILE} )
endif()
endif()
if(ARG_SHARED)
if(NOT APPLE AND ARG_SONAME)
get_target_property(output_name ${name} OUTPUT_NAME)
if(${output_name} STREQUAL "output_name-NOTFOUND")
set(output_name ${name})
endif()
set(library_name ${output_name}-${LLVM_VERSION_MAJOR}${LLVM_VERSION_SUFFIX})
set(api_name ${output_name}-${LLVM_VERSION_MAJOR}.${LLVM_VERSION_MINOR}.${LLVM_VERSION_PATCH}${LLVM_VERSION_SUFFIX})
set_target_properties(${name} PROPERTIES OUTPUT_NAME ${library_name})
if(UNIX)
llvm_install_library_symlink(${api_name} ${library_name} SHARED
COMPONENT ${name})
llvm_install_library_symlink(${output_name} ${library_name} SHARED
COMPONENT ${name})
endif()
endif()
endif()
if(ARG_STATIC)
set(libtype PUBLIC)
else()
# We can use PRIVATE since SO knows its dependent libs.
set(libtype PRIVATE)
endif()
if(ARG_MODULE AND LLVM_EXPORT_SYMBOLS_FOR_PLUGINS AND ARG_PLUGIN_TOOL AND (WIN32 OR CYGWIN))
# On DLL platforms symbols are imported from the tool by linking against it.
set(llvm_libs ${ARG_PLUGIN_TOOL})
elseif (NOT ARG_COMPONENT_LIB)
if (LLVM_LINK_LLVM_DYLIB AND NOT ARG_DISABLE_LLVM_LINK_LLVM_DYLIB)
set(llvm_libs LLVM)
else()
if(ARG_DISABLE_LLVM_LINK_LLVM_DYLIB)
target_compile_definitions(${name} PRIVATE LLVM_BUILD_STATIC)
endif()
llvm_map_components_to_libnames(llvm_libs
${ARG_LINK_COMPONENTS}
${LLVM_LINK_COMPONENTS}
)
endif()
else()
# Components have not been defined explicitly in CMake, so add the
# dependency information for this library through their name, and let
# LLVMBuildResolveComponentsLink resolve the mapping.
#
# It would be nice to verify that we have the dependencies for this library
# name, but using get_property(... SET) doesn't suffice to determine if a
# property has been set to an empty value.
set_property(TARGET ${name} PROPERTY LLVM_LINK_COMPONENTS ${ARG_LINK_COMPONENTS} ${LLVM_LINK_COMPONENTS})
# This property is an internal property only used to make sure the
# link step applied in LLVMBuildResolveComponentsLink uses the same
# property as the target_link_libraries call below.
set_property(TARGET ${name} PROPERTY LLVM_LIBTYPE ${libtype})
endif()
target_link_libraries(${name} ${libtype}
${ARG_LINK_LIBS}
${lib_deps}
${llvm_libs}
)
if(LLVM_COMMON_DEPENDS)
add_dependencies(${name} ${LLVM_COMMON_DEPENDS})
# Add dependencies also to objlibs.
# CMake issue 14747 -- add_dependencies() might be ignored to objlib's user.
foreach(objlib ${objlibs})
add_dependencies(${objlib} ${LLVM_COMMON_DEPENDS})
endforeach()
endif()
add_custom_linker_flags(${name})
if(ARG_SHARED OR ARG_MODULE)
llvm_externalize_debuginfo(${name})
llvm_codesign(${name} ENTITLEMENTS ${ARG_ENTITLEMENTS} BUNDLE_PATH ${ARG_BUNDLE_PATH})
endif()
# clang and newer versions of ninja use high-resolutions timestamps,
# but older versions of libtool on Darwin don't, so the archive will
# often get an older timestamp than the last object that was added
# or updated. To fix this, we add a custom command to touch archive
# after it's been built so that ninja won't rebuild it unnecessarily
# the next time it's run.
if(ARG_STATIC AND LLVM_TOUCH_STATIC_LIBRARIES)
add_custom_command(TARGET ${name}
POST_BUILD
COMMAND touch ${LLVM_LIBRARY_DIR}/${CMAKE_STATIC_LIBRARY_PREFIX}${name}${CMAKE_STATIC_LIBRARY_SUFFIX}
)
endif()
endfunction()
function(add_llvm_install_targets target)
cmake_parse_arguments(ARG "" "COMPONENT;PREFIX;SYMLINK" "DEPENDS" ${ARGN})
if(ARG_COMPONENT)
set(component_option -DCMAKE_INSTALL_COMPONENT="${ARG_COMPONENT}")
endif()
if(ARG_PREFIX)
set(prefix_option -DCMAKE_INSTALL_PREFIX="${ARG_PREFIX}")
endif()
set(file_dependencies)
set(target_dependencies)
foreach(dependency ${ARG_DEPENDS})
if(TARGET ${dependency})
list(APPEND target_dependencies ${dependency})
else()
list(APPEND file_dependencies ${dependency})
endif()
endforeach()
get_subproject_title(subproject_title)
add_custom_target(${target}
DEPENDS ${file_dependencies}
COMMAND "${CMAKE_COMMAND}"
${component_option}
${prefix_option}
-P "${CMAKE_BINARY_DIR}/cmake_install.cmake"
USES_TERMINAL)
set_target_properties(${target} PROPERTIES FOLDER "${subproject_title}/Installation")
add_custom_target(${target}-stripped
DEPENDS ${file_dependencies}
COMMAND "${CMAKE_COMMAND}"
${component_option}
${prefix_option}
-DCMAKE_INSTALL_DO_STRIP=1
-P "${CMAKE_BINARY_DIR}/cmake_install.cmake"
USES_TERMINAL)
set_target_properties(${target}-stripped PROPERTIES FOLDER "${subproject_title}/Installation")
if(target_dependencies)
add_dependencies(${target} ${target_dependencies})
add_dependencies(${target}-stripped ${target_dependencies})
endif()
if(ARG_SYMLINK)
add_dependencies(${target} install-${ARG_SYMLINK})
add_dependencies(${target}-stripped install-${ARG_SYMLINK}-stripped)
endif()
endfunction()
# Define special targets that behave like a component group. They don't have any
# source attached but other components can add themselves to them. If the
# component supports is a Target and it supports JIT compilation, HAS_JIT must
# be passed. One can use ADD_TO_COMPONENT option from add_llvm_component_library
# to link extra component into an existing group.
function(add_llvm_component_group name)
cmake_parse_arguments(ARG "HAS_JIT" "" "LINK_COMPONENTS" ${ARGN})
add_custom_target(${name})
get_subproject_title(subproject_title)
set_target_properties(${name} PROPERTIES FOLDER "${subproject_title}/Component Groups")
if(ARG_HAS_JIT)
set_property(TARGET ${name} PROPERTY COMPONENT_HAS_JIT ON)
endif()
if(ARG_LINK_COMPONENTS)
set_property(TARGET ${name} PROPERTY LLVM_LINK_COMPONENTS ${ARG_LINK_COMPONENTS})
endif()
endfunction()
# An LLVM component is a cmake target with the following cmake properties
# eventually set:
# - LLVM_COMPONENT_NAME: the name of the component, which can be the name of
# the associated library or the one specified through COMPONENT_NAME
# - LLVM_LINK_COMPONENTS: a list of component this component depends on
# - COMPONENT_HAS_JIT: (only for group component) whether this target group
# supports JIT compilation
# Additionnaly, the ADD_TO_COMPONENT <component> option make it possible to add this
# component to the LLVM_LINK_COMPONENTS of <component>.
function(add_llvm_component_library name)
cmake_parse_arguments(ARG
""
"COMPONENT_NAME;ADD_TO_COMPONENT"
""
${ARGN})
add_llvm_library(${name} COMPONENT_LIB ${ARG_UNPARSED_ARGUMENTS})
string(REGEX REPLACE "^LLVM" "" component_name ${name})
set_property(TARGET ${name} PROPERTY LLVM_COMPONENT_NAME ${component_name})
if(ARG_COMPONENT_NAME)
set_property(GLOBAL PROPERTY LLVM_COMPONENT_NAME_${ARG_COMPONENT_NAME} ${component_name})
endif()
if(ARG_ADD_TO_COMPONENT)
set_property(TARGET ${ARG_ADD_TO_COMPONENT} APPEND PROPERTY LLVM_LINK_COMPONENTS ${component_name})
get_subproject_title(subproject_title)
set_target_properties(${name} PROPERTIES FOLDER "${subproject_title}/Libraries/${ARG_ADD_TO_COMPONENT}")
endif()
endfunction()
macro(add_llvm_library name)
cmake_parse_arguments(ARG
"SHARED;BUILDTREE_ONLY;MODULE;INSTALL_WITH_TOOLCHAIN"
""
""
${ARGN})
if(ARG_MODULE)
llvm_add_library(${name} MODULE ${ARG_UNPARSED_ARGUMENTS})
elseif( BUILD_SHARED_LIBS OR ARG_SHARED )
llvm_add_library(${name} SHARED ${ARG_UNPARSED_ARGUMENTS})
else()
llvm_add_library(${name} ${ARG_UNPARSED_ARGUMENTS})
endif()
# Libraries that are meant to only be exposed via the build tree only are
# never installed and are only exported as a target in the special build tree
# config file.
if (NOT ARG_BUILDTREE_ONLY AND NOT ARG_MODULE)
set_property( GLOBAL APPEND PROPERTY LLVM_LIBS ${name} )
set(in_llvm_libs YES)
endif()
if (ARG_MODULE AND NOT TARGET ${name})
# Add empty "phony" target
add_custom_target(${name})
elseif( EXCLUDE_FROM_ALL )
set_target_properties( ${name} PROPERTIES EXCLUDE_FROM_ALL ON)
elseif(ARG_BUILDTREE_ONLY)
set_property(GLOBAL APPEND PROPERTY LLVM_EXPORTS_BUILDTREE_ONLY ${name})
else()
if (NOT LLVM_INSTALL_TOOLCHAIN_ONLY OR ARG_INSTALL_WITH_TOOLCHAIN)
if(in_llvm_libs)
set(umbrella UMBRELLA llvm-libraries)
else()
set(umbrella)
endif()
get_target_export_arg(${name} LLVM export_to_llvmexports ${umbrella})
install(TARGETS ${name}
${export_to_llvmexports}
LIBRARY DESTINATION lib${LLVM_LIBDIR_SUFFIX} COMPONENT ${name}
ARCHIVE DESTINATION lib${LLVM_LIBDIR_SUFFIX} COMPONENT ${name}
RUNTIME DESTINATION "${CMAKE_INSTALL_BINDIR}" COMPONENT ${name})
if (NOT LLVM_ENABLE_IDE)
add_llvm_install_targets(install-${name}
DEPENDS ${name}
COMPONENT ${name})
endif()
endif()
set_property(GLOBAL APPEND PROPERTY LLVM_EXPORTS ${name})
endif()
get_subproject_title(subproject_title)
if (ARG_MODULE)
set_target_properties(${name} PROPERTIES FOLDER "${subproject_title}/Loadable Modules")
else()
set_target_properties(${name} PROPERTIES FOLDER "${subproject_title}/Libraries")
endif()
endmacro(add_llvm_library name)
macro(generate_llvm_objects name)
cmake_parse_arguments(ARG "GENERATE_DRIVER" "" "DEPENDS" ${ARGN})
llvm_process_sources( ALL_FILES ${ARG_UNPARSED_ARGUMENTS} )
list(APPEND LLVM_COMMON_DEPENDS ${ARG_DEPENDS})
# Generate objlib
if(LLVM_ENABLE_OBJLIB OR (ARG_GENERATE_DRIVER AND LLVM_TOOL_LLVM_DRIVER_BUILD))
# Generate an obj library for both targets.
set(obj_name "obj.${name}")
add_library(${obj_name} OBJECT EXCLUDE_FROM_ALL
${ALL_FILES}
)
llvm_update_compile_flags(${obj_name})
set(ALL_FILES "$<TARGET_OBJECTS:${obj_name}>")
if(ARG_DEPENDS)
add_dependencies(${obj_name} ${ARG_DEPENDS})
endif()
get_subproject_title(subproject_title)
set_target_properties(${obj_name} PROPERTIES FOLDER "${subproject_title}/Object Libraries")
endif()
if (ARG_GENERATE_DRIVER)
string(REPLACE "-" "_" TOOL_NAME ${name})
foreach(path ${CMAKE_MODULE_PATH})
if(EXISTS ${path}/llvm-driver-template.cpp.in)
configure_file(
${path}/llvm-driver-template.cpp.in
${CMAKE_CURRENT_BINARY_DIR}/${name}-driver.cpp)
break()
endif()
endforeach()
list(APPEND ALL_FILES ${CMAKE_CURRENT_BINARY_DIR}/${name}-driver.cpp)
if (LLVM_TOOL_LLVM_DRIVER_BUILD
AND (NOT LLVM_DISTRIBUTION_COMPONENTS OR ${name} IN_LIST LLVM_DISTRIBUTION_COMPONENTS)
)
set_property(GLOBAL APPEND PROPERTY LLVM_DRIVER_COMPONENTS ${LLVM_LINK_COMPONENTS})
set_property(GLOBAL APPEND PROPERTY LLVM_DRIVER_DEPS ${ARG_DEPENDS} ${LLVM_COMMON_DEPENDS})
set_property(GLOBAL APPEND PROPERTY LLVM_DRIVER_OBJLIBS "${obj_name}")
set_property(GLOBAL APPEND PROPERTY LLVM_DRIVER_TOOLS ${name})
set_property(GLOBAL APPEND PROPERTY LLVM_DRIVER_TOOL_ALIASES_${name} ${name})
target_link_libraries(${obj_name} ${LLVM_PTHREAD_LIB})
llvm_config(${obj_name} ${USE_SHARED} ${LLVM_LINK_COMPONENTS} )
endif()
endif()
endmacro()
macro(add_llvm_executable name)
cmake_parse_arguments(ARG
"DISABLE_LLVM_LINK_LLVM_DYLIB;IGNORE_EXTERNALIZE_DEBUGINFO;NO_INSTALL_RPATH;SUPPORT_PLUGINS;EXPORT_SYMBOLS"
"ENTITLEMENTS;BUNDLE_PATH"
""
${ARGN})
generate_llvm_objects(${name} ${ARG_UNPARSED_ARGUMENTS})
add_windows_version_resource_file(ALL_FILES ${ALL_FILES})
if(XCODE)
# Note: the dummy.cpp source file provides no definitions. However,
# it forces Xcode to properly link the static library.
list(APPEND ALL_FILES "${LLVM_MAIN_SRC_DIR}/cmake/dummy.cpp")
endif()
if( EXCLUDE_FROM_ALL )
add_executable(${name} EXCLUDE_FROM_ALL ${ALL_FILES})
else()
add_executable(${name} ${ALL_FILES})
endif()
get_subproject_title(subproject_title)
set_target_properties(${name} PROPERTIES FOLDER "${subproject_title}/Executables")
setup_dependency_debugging(${name} ${LLVM_COMMON_DEPENDS})
if(NOT ARG_NO_INSTALL_RPATH)
llvm_setup_rpath(${name})
elseif(NOT "${LLVM_LOCAL_RPATH}" STREQUAL "")
# Enable BUILD_WITH_INSTALL_RPATH unless CMAKE_BUILD_RPATH is set.
if("${CMAKE_BUILD_RPATH}" STREQUAL "")
set_property(TARGET ${name} PROPERTY BUILD_WITH_INSTALL_RPATH ON)
endif()
set_property(TARGET ${name} PROPERTY INSTALL_RPATH "${LLVM_LOCAL_RPATH}")
endif()
if(DEFINED windows_resource_file)
set_windows_version_resource_properties(${name} ${windows_resource_file})
endif()
# $<TARGET_OBJECTS> doesn't require compile flags.
if(NOT LLVM_ENABLE_OBJLIB)
llvm_update_compile_flags(${name})
endif()
if (ARG_SUPPORT_PLUGINS AND NOT ${CMAKE_SYSTEM_NAME} MATCHES "AIX")
set(LLVM_NO_DEAD_STRIP On)
endif()
add_link_opts( ${name} )
# Do not add -Dname_EXPORTS to the command-line when building files in this
# target. Doing so is actively harmful for the modules build because it
# creates extra module variants, and not useful because we don't use these
# macros.
set_target_properties( ${name} PROPERTIES DEFINE_SYMBOL "" )
if (LLVM_EXPORTED_SYMBOL_FILE)
add_llvm_symbol_exports( ${name} ${LLVM_EXPORTED_SYMBOL_FILE} )
endif(LLVM_EXPORTED_SYMBOL_FILE)
if (DEFINED LLVM_ENABLE_EXPORTED_SYMBOLS_IN_EXECUTABLES AND
NOT LLVM_ENABLE_EXPORTED_SYMBOLS_IN_EXECUTABLES AND
NOT ARG_EXPORT_SYMBOLS)
if(LLVM_LINKER_SUPPORTS_NO_EXPORTED_SYMBOLS)
set_property(TARGET ${name} APPEND_STRING PROPERTY
LINK_FLAGS " -Wl,-no_exported_symbols")
else()
message(FATAL_ERROR
"LLVM_ENABLE_EXPORTED_SYMBOLS_IN_EXECUTABLES cannot be disabled when linker does not support \"-no_exported_symbols\"")
endif()
endif()
if (LLVM_LINK_LLVM_DYLIB AND NOT ARG_DISABLE_LLVM_LINK_LLVM_DYLIB)
set(USE_SHARED USE_SHARED)
endif()
set(EXCLUDE_FROM_ALL OFF)
set_output_directory(${name} BINARY_DIR ${LLVM_RUNTIME_OUTPUT_INTDIR} LIBRARY_DIR ${LLVM_LIBRARY_OUTPUT_INTDIR})
llvm_config( ${name} ${USE_SHARED} ${LLVM_LINK_COMPONENTS} )
if( LLVM_COMMON_DEPENDS )
add_dependencies( ${name} ${LLVM_COMMON_DEPENDS} )
foreach(objlib ${obj_name})
add_dependencies(${objlib} ${LLVM_COMMON_DEPENDS})
endforeach()
endif( LLVM_COMMON_DEPENDS )
add_custom_linker_flags(${name})
if(NOT ARG_IGNORE_EXTERNALIZE_DEBUGINFO)
llvm_externalize_debuginfo(${name})
endif()
if (LLVM_PTHREAD_LIB)
# libpthreads overrides some standard library symbols, so main
# executable must be linked with it in order to provide consistent
# API for all shared libaries loaded by this executable.
target_link_libraries(${name} PRIVATE ${LLVM_PTHREAD_LIB})
endif()
if(HAVE_LLVM_LIBC)
target_link_libraries(${name} PRIVATE llvmlibc)
endif()
llvm_codesign(${name} ENTITLEMENTS ${ARG_ENTITLEMENTS} BUNDLE_PATH ${ARG_BUNDLE_PATH})
if (ARG_EXPORT_SYMBOLS)
export_executable_symbols(${name})
endif()
if(ARG_DISABLE_LLVM_LINK_LLVM_DYLIB OR NOT LLVM_LINK_LLVM_DYLIB)
target_compile_definitions(${name} PRIVATE LLVM_BUILD_STATIC)
endif()
if(LLVM_BUILD_LLVM_DYLIB_VIS AND NOT LLVM_DYLIB_EXPORT_INLINES AND
MSVC AND CMAKE_CXX_COMPILER_ID MATCHES Clang)
# This has to match how the libraries the executable is linked to are built or there be linker errors.
target_compile_options(${name} PRIVATE /Zc:dllexportInlines-)
endif()
endmacro(add_llvm_executable name)
# add_llvm_pass_plugin(name [NO_MODULE] ...)
# Add ${name} as an llvm plugin.
# If option LLVM_${name_upper}_LINK_INTO_TOOLS is set to ON, the plugin is registered statically.
# Otherwise a pluggable shared library is registered.
#
# If NO_MODULE is specified, when option LLVM_${name_upper}_LINK_INTO_TOOLS is set to OFF,
# only an object library is built, and no module is built. This is specific to the Polly use case.
#
# The SUBPROJECT argument contains the LLVM project the plugin belongs
# to. If set, the plugin will link statically by default it if the
# project was enabled.
function(add_llvm_pass_plugin name)
cmake_parse_arguments(ARG
"NO_MODULE" "SUBPROJECT" ""
${ARGN})
string(TOUPPER ${name} name_upper)
# Enable the plugin by default if it was explicitly enabled by the user.
# Note: If was set to "all", LLVM's CMakeLists.txt replaces it with a
# list of all projects, counting as explicitly enabled.
set(link_into_tools_default OFF)
if (ARG_SUBPROJECT AND LLVM_TOOL_${name_upper}_BUILD)
set(link_into_tools_default ON)
endif()
option(LLVM_${name_upper}_LINK_INTO_TOOLS "Statically link ${name} into tools (if available)" ${link_into_tools_default})
# If we statically link the plugin, don't use llvm dylib because we're going
# to be part of it.
if(LLVM_${name_upper}_LINK_INTO_TOOLS)
list(APPEND ARG_UNPARSED_ARGUMENTS DISABLE_LLVM_LINK_LLVM_DYLIB)
endif()
if(LLVM_${name_upper}_LINK_INTO_TOOLS)
list(REMOVE_ITEM ARG_UNPARSED_ARGUMENTS BUILDTREE_ONLY)
# process_llvm_pass_plugins takes care of the actual linking, just create an
# object library as of now
add_llvm_library(${name} OBJECT ${ARG_UNPARSED_ARGUMENTS})
target_compile_definitions(${name} PRIVATE LLVM_${name_upper}_LINK_INTO_TOOLS)
set_property(TARGET ${name} APPEND PROPERTY COMPILE_DEFINITIONS LLVM_LINK_INTO_TOOLS)
if (TARGET intrinsics_gen)
add_dependencies(obj.${name} intrinsics_gen)
endif()
if (TARGET omp_gen)
add_dependencies(obj.${name} omp_gen)
endif()
if (TARGET acc_gen)
add_dependencies(obj.${name} acc_gen)
endif()
set_property(GLOBAL APPEND PROPERTY LLVM_STATIC_EXTENSIONS ${name})
elseif(NOT ARG_NO_MODULE)
add_llvm_library(${name} MODULE ${ARG_UNPARSED_ARGUMENTS})
else()
add_llvm_library(${name} OBJECT ${ARG_UNPARSED_ARGUMENTS})
endif()
message(STATUS "Registering ${name} as a pass plugin (static build: ${LLVM_${name_upper}_LINK_INTO_TOOLS})")
endfunction(add_llvm_pass_plugin)
# process_llvm_pass_plugins([GEN_CONFIG])
#
# Correctly set lib dependencies between plugins and tools, based on tools
# registered with the ENABLE_PLUGINS option.
#
# if GEN_CONFIG option is set, also generate X Macro file for extension
# handling. It provides a HANDLE_EXTENSION(extension_namespace, ExtensionProject)
# call for each extension allowing client code to define
# HANDLE_EXTENSION to have a specific code be run for each extension.
#
function(process_llvm_pass_plugins)
cmake_parse_arguments(ARG
"GEN_CONFIG" "" ""
${ARGN})
if(ARG_GEN_CONFIG)
get_property(LLVM_STATIC_EXTENSIONS GLOBAL PROPERTY LLVM_STATIC_EXTENSIONS)
else()
include(LLVMConfigExtensions)
endif()
# Add static plugins to the Extension component
foreach(llvm_extension ${LLVM_STATIC_EXTENSIONS})
set_property(TARGET LLVMExtensions APPEND PROPERTY LINK_LIBRARIES ${llvm_extension})
set_property(TARGET LLVMExtensions APPEND PROPERTY INTERFACE_LINK_LIBRARIES ${llvm_extension})
endforeach()
# Eventually generate the extension headers, and store config to a cmake file
# for usage in third-party configuration.
if(ARG_GEN_CONFIG)
## Part 1: Extension header to be included whenever we need extension
# processing.
if(NOT DEFINED LLVM_INSTALL_PACKAGE_DIR)
message(FATAL_ERROR "LLVM_INSTALL_PACKAGE_DIR must be defined and writable. GEN_CONFIG should only be passe when building LLVM proper.")
endif()
# LLVM_INSTALL_PACKAGE_DIR might be absolute, so don't reuse below.
string(REPLACE "${CMAKE_CFG_INTDIR}" "." llvm_cmake_builddir "${LLVM_LIBRARY_DIR}")
set(llvm_cmake_builddir "${llvm_cmake_builddir}/cmake/llvm")
file(WRITE
"${llvm_cmake_builddir}/LLVMConfigExtensions.cmake"
"set(LLVM_STATIC_EXTENSIONS ${LLVM_STATIC_EXTENSIONS})")
install(FILES
${llvm_cmake_builddir}/LLVMConfigExtensions.cmake
DESTINATION ${LLVM_INSTALL_PACKAGE_DIR}
COMPONENT cmake-exports)
set(ExtensionDef "${LLVM_BINARY_DIR}/include/llvm/Support/Extension.def")
file(WRITE "${ExtensionDef}.tmp" "//extension handlers\n")
foreach(llvm_extension ${LLVM_STATIC_EXTENSIONS})
file(APPEND "${ExtensionDef}.tmp" "HANDLE_EXTENSION(${llvm_extension})\n")
endforeach()
file(APPEND "${ExtensionDef}.tmp" "#undef HANDLE_EXTENSION\n")
# only replace if there's an actual change
execute_process(COMMAND ${CMAKE_COMMAND} -E copy_if_different
"${ExtensionDef}.tmp"
"${ExtensionDef}")
file(REMOVE "${ExtensionDef}.tmp")
## Part 2: Extension header that captures each extension dependency, to be
# used by llvm-config.
set(ExtensionDeps "${LLVM_BINARY_DIR}/tools/llvm-config/ExtensionDependencies.inc")
# Max needed to correctly size the required library array.
set(llvm_plugin_max_deps_length 0)
foreach(llvm_extension ${LLVM_STATIC_EXTENSIONS})
get_property(llvm_plugin_deps TARGET ${llvm_extension} PROPERTY LINK_LIBRARIES)
list(LENGTH llvm_plugin_deps llvm_plugin_deps_length)
if(llvm_plugin_deps_length GREATER llvm_plugin_max_deps_length)
set(llvm_plugin_max_deps_length ${llvm_plugin_deps_length})
endif()
endforeach()
list(LENGTH LLVM_STATIC_EXTENSIONS llvm_static_extension_count)
file(WRITE
"${ExtensionDeps}.tmp"
"#include <array>\n\
struct ExtensionDescriptor {\n\
const char* Name;\n\
const char* RequiredLibraries[1 + 1 + ${llvm_plugin_max_deps_length}];\n\
};\n\
std::array<ExtensionDescriptor, ${llvm_static_extension_count}> AvailableExtensions{\n")
foreach(llvm_extension ${LLVM_STATIC_EXTENSIONS})
get_property(llvm_plugin_deps TARGET ${llvm_extension} PROPERTY LINK_LIBRARIES)
file(APPEND "${ExtensionDeps}.tmp" "ExtensionDescriptor{\"${llvm_extension}\", {")
foreach(llvm_plugin_dep ${llvm_plugin_deps})
# Turn library dependency back to component name, if possible.
# That way llvm-config can avoid redundant dependencies.
STRING(REGEX REPLACE "^-l" "" plugin_dep_name ${llvm_plugin_dep})
STRING(REGEX MATCH "^LLVM" is_llvm_library ${plugin_dep_name})
if(is_llvm_library)
STRING(REGEX REPLACE "^LLVM" "" plugin_dep_name ${plugin_dep_name})
STRING(TOLOWER ${plugin_dep_name} plugin_dep_name)
endif()
file(APPEND "${ExtensionDeps}.tmp" "\"${plugin_dep_name}\", ")
endforeach()
# Self + mandatory trailing null, because the number of RequiredLibraries differs between extensions.
file(APPEND "${ExtensionDeps}.tmp" \"${llvm_extension}\", "nullptr}},\n")
endforeach()
file(APPEND "${ExtensionDeps}.tmp" "};\n")
# only replace if there's an actual change
execute_process(COMMAND ${CMAKE_COMMAND} -E copy_if_different
"${ExtensionDeps}.tmp"
"${ExtensionDeps}")
file(REMOVE "${ExtensionDeps}.tmp")
endif()
endfunction()
function(export_executable_symbols target)
if (LLVM_EXPORTED_SYMBOL_FILE)
# The symbol file should contain the symbols we want the executable to
# export
set_target_properties(${target} PROPERTIES ENABLE_EXPORTS 1)
elseif (LLVM_EXPORT_SYMBOLS_FOR_PLUGINS)
# Extract the symbols to export from the static libraries that the
# executable links against.
set_target_properties(${target} PROPERTIES ENABLE_EXPORTS 1)
set(exported_symbol_file ${CMAKE_CURRENT_BINARY_DIR}/${CMAKE_CFG_INTDIR}/${target}.symbols)
# We need to consider not just the direct link dependencies, but also the
# transitive link dependencies. Do this by starting with the set of direct
# dependencies, then the dependencies of those dependencies, and so on.
get_target_property(new_libs ${target} LINK_LIBRARIES)
set(link_libs ${new_libs})
while(NOT "${new_libs}" STREQUAL "")
foreach(lib ${new_libs})
if(TARGET ${lib})
get_target_property(lib_type ${lib} TYPE)
if("${lib_type}" STREQUAL "STATIC_LIBRARY")
list(APPEND static_libs ${lib})
else()
list(APPEND other_libs ${lib})
endif()
get_target_property(transitive_libs ${lib} INTERFACE_LINK_LIBRARIES)
foreach(transitive_lib ${transitive_libs})
if(TARGET ${transitive_lib} AND NOT ${transitive_lib} IN_LIST link_libs)
list(APPEND newer_libs ${transitive_lib})
list(APPEND link_libs ${transitive_lib})
endif()
endforeach(transitive_lib)
endif()
endforeach(lib)
set(new_libs ${newer_libs})
set(newer_libs "")
endwhile()
list(REMOVE_DUPLICATES static_libs)
if (MSVC)
set(mangling microsoft)
else()
set(mangling itanium)
endif()
get_host_tool_path(llvm-nm LLVM_NM llvm_nm_exe llvm_nm_target)
get_host_tool_path(llvm-readobj LLVM_READOBJ llvm_readobj_exe llvm_readobj_target)
add_custom_command(OUTPUT ${exported_symbol_file}
COMMAND "${Python3_EXECUTABLE}"
${LLVM_MAIN_SRC_DIR}/utils/extract_symbols.py
--mangling=${mangling} ${static_libs}
-o ${exported_symbol_file}
--nm=${llvm_nm_exe}
--readobj=${llvm_readobj_exe}
WORKING_DIRECTORY ${LLVM_LIBRARY_OUTPUT_INTDIR}
DEPENDS ${LLVM_MAIN_SRC_DIR}/utils/extract_symbols.py
${static_libs} ${llvm_nm_target} ${llvm_readobj_target}
VERBATIM
COMMENT "Generating export list for ${target}")
add_llvm_symbol_exports( ${target} ${exported_symbol_file} )
# If something links against this executable then we want a
# transitive link against only the libraries whose symbols
# we aren't exporting.
set_target_properties(${target} PROPERTIES INTERFACE_LINK_LIBRARIES "${other_libs}")
# The default import library suffix that cmake uses for cygwin/mingw is
# ".dll.a", but for clang.exe that causes a collision with libclang.dll,
# where the import libraries of both get named libclang.dll.a. Use a suffix
# of ".exe.a" to avoid this.
if(CYGWIN OR MINGW)
set_target_properties(${target} PROPERTIES IMPORT_SUFFIX ".exe.a")
endif()
elseif(NOT (WIN32 OR CYGWIN))
# On Windows auto-exporting everything doesn't work because of the limit on
# the size of the exported symbol table, but on other platforms we can do
# it without any trouble.
set_target_properties(${target} PROPERTIES ENABLE_EXPORTS 1)
# CMake doesn't set CMAKE_EXE_EXPORTS_${lang}_FLAG on Solaris, so
# ENABLE_EXPORTS has no effect. While Solaris ld defaults to -rdynamic
# behaviour, GNU ld needs it.
if (APPLE OR ${CMAKE_SYSTEM_NAME} STREQUAL "SunOS")
set_property(TARGET ${target} APPEND_STRING PROPERTY
LINK_FLAGS " -rdynamic")
endif()
endif()
endfunction()
# Export symbols if LLVM plugins are enabled.
function(export_executable_symbols_for_plugins target)
if(LLVM_ENABLE_PLUGINS OR LLVM_EXPORT_SYMBOLS_FOR_PLUGINS)
export_executable_symbols(${target})
endif()
endfunction()
if(NOT LLVM_TOOLCHAIN_TOOLS)
set (LLVM_TOOLCHAIN_TOOLS
llvm-ar
llvm-cov
llvm-cxxfilt
llvm-dlltool
llvm-dwp
llvm-ranlib
llvm-lib
llvm-mca
llvm-ml
llvm-nm
llvm-objcopy
llvm-objdump
llvm-pdbutil
llvm-rc
llvm-readobj
llvm-size
llvm-strings
llvm-strip
llvm-profdata
llvm-symbolizer
# symlink version of some of above tools that are enabled by
# LLVM_INSTALL_BINUTILS_SYMLINKS.
addr2line
ar
c++filt
ranlib
nm
objcopy
objdump
readelf
size
strings
strip
)
# Build llvm-mt if libxml2 is enabled. Can be used by runtimes.
if (LLVM_ENABLE_LIBXML2)
list(APPEND LLVM_TOOLCHAIN_TOOLS llvm-mt)
endif()
endif()
macro(llvm_add_tool project name)
cmake_parse_arguments(ARG "DEPENDS;GENERATE_DRIVER" "" "" ${ARGN})
if( NOT LLVM_BUILD_TOOLS )
set(EXCLUDE_FROM_ALL ON)
endif()
if(ARG_GENERATE_DRIVER
AND LLVM_TOOL_LLVM_DRIVER_BUILD
AND (NOT LLVM_DISTRIBUTION_COMPONENTS OR ${name} IN_LIST LLVM_DISTRIBUTION_COMPONENTS)
)
generate_llvm_objects(${name} ${ARGN})
add_custom_target(${name} DEPENDS llvm-driver)
else()
add_llvm_executable(${name} ${ARGN})
if ( ${name} IN_LIST LLVM_TOOLCHAIN_TOOLS OR NOT LLVM_INSTALL_TOOLCHAIN_ONLY)
if( LLVM_BUILD_TOOLS )
get_target_export_arg(${name} LLVM export_to_llvmexports)
install(TARGETS ${name}
${export_to_llvmexports}
RUNTIME DESTINATION ${${project}_TOOLS_INSTALL_DIR}
COMPONENT ${name})
if (NOT LLVM_ENABLE_IDE)
add_llvm_install_targets(install-${name}
DEPENDS ${name}
COMPONENT ${name})
endif()
endif()
endif()
if( LLVM_BUILD_TOOLS )
set_property(GLOBAL APPEND PROPERTY LLVM_EXPORTS ${name})
endif()
endif()
get_subproject_title(subproject_title)
set_target_properties(${name} PROPERTIES FOLDER "${subproject_title}/Tools")
set_target_properties(${name} PROPERTIES XCODE_GENERATE_SCHEME ON)
endmacro(llvm_add_tool project name)
macro(add_llvm_tool name)
llvm_add_tool(LLVM ${ARGV})
endmacro()
macro(add_llvm_example name)
if( NOT LLVM_BUILD_EXAMPLES )
set(EXCLUDE_FROM_ALL ON)
endif()
add_llvm_executable(${name} EXPORT_SYMBOLS ${ARGN})
if( LLVM_BUILD_EXAMPLES )
install(TARGETS ${name} RUNTIME DESTINATION "${LLVM_EXAMPLES_INSTALL_DIR}")
endif()
get_subproject_title(subproject_title)
set_target_properties(${name} PROPERTIES FOLDER "${subproject_title}/Examples")
endmacro(add_llvm_example name)
macro(add_llvm_example_library name)
if( NOT LLVM_BUILD_EXAMPLES )
set(EXCLUDE_FROM_ALL ON)
add_llvm_library(${name} BUILDTREE_ONLY ${ARGN})
else()
add_llvm_library(${name} ${ARGN})
endif()
get_subproject_title(subproject_title)
set_target_properties(${name} PROPERTIES FOLDER "${subproject_title}/Examples")
endmacro(add_llvm_example_library name)
# This is a macro that is used to create targets for executables that are needed
# for development, but that are not intended to be installed by default.
macro(add_llvm_utility name)
if ( NOT LLVM_BUILD_UTILS )
set(EXCLUDE_FROM_ALL ON)
endif()
add_llvm_executable(${name} DISABLE_LLVM_LINK_LLVM_DYLIB ${ARGN})
get_subproject_title(subproject_title)
set_target_properties(${name} PROPERTIES FOLDER "${subproject_title}/Utils")
if ( ${name} IN_LIST LLVM_TOOLCHAIN_UTILITIES OR NOT LLVM_INSTALL_TOOLCHAIN_ONLY)
if (LLVM_INSTALL_UTILS AND LLVM_BUILD_UTILS)
get_target_export_arg(${name} LLVM export_to_llvmexports)
install(TARGETS ${name}
${export_to_llvmexports}
RUNTIME DESTINATION ${LLVM_UTILS_INSTALL_DIR}
COMPONENT ${name})
if (NOT LLVM_ENABLE_IDE)
add_llvm_install_targets(install-${name}
DEPENDS ${name}
COMPONENT ${name})
endif()
set_property(GLOBAL APPEND PROPERTY LLVM_EXPORTS ${name})
elseif(LLVM_BUILD_UTILS)
set_property(GLOBAL APPEND PROPERTY LLVM_EXPORTS_BUILDTREE_ONLY ${name})
endif()
endif()
endmacro(add_llvm_utility name)
macro(add_llvm_fuzzer name)
cmake_parse_arguments(ARG "" "DUMMY_MAIN" "" ${ARGN})
get_subproject_title(subproject_title)
if( LLVM_LIB_FUZZING_ENGINE )
set(LLVM_OPTIONAL_SOURCES ${ARG_DUMMY_MAIN})
add_llvm_executable(${name} ${ARG_UNPARSED_ARGUMENTS})
target_link_libraries(${name} PRIVATE ${LLVM_LIB_FUZZING_ENGINE})
set_target_properties(${name} PROPERTIES FOLDER "${subproject_title}/Fuzzers")
elseif( LLVM_USE_SANITIZE_COVERAGE )
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fsanitize=fuzzer")
set(LLVM_OPTIONAL_SOURCES ${ARG_DUMMY_MAIN})
add_llvm_executable(${name} ${ARG_UNPARSED_ARGUMENTS})
set_target_properties(${name} PROPERTIES FOLDER "${subproject_title}/Fuzzers")
elseif( ARG_DUMMY_MAIN )
add_llvm_executable(${name} ${ARG_DUMMY_MAIN} ${ARG_UNPARSED_ARGUMENTS})
set_target_properties(${name} PROPERTIES FOLDER "${subproject_title}/Fuzzers")
endif()
endmacro()
macro(add_llvm_target target_name)
include_directories(BEFORE
${CMAKE_CURRENT_BINARY_DIR}
${CMAKE_CURRENT_SOURCE_DIR})
add_llvm_component_library(LLVM${target_name} ${ARGN})
set( CURRENT_LLVM_TARGET LLVM${target_name} )
endmacro(add_llvm_target)
function(canonicalize_tool_name name output)
string(REPLACE "${CMAKE_CURRENT_SOURCE_DIR}/" "" nameStrip ${name})
string(REPLACE "-" "_" nameUNDERSCORE ${nameStrip})
string(TOUPPER ${nameUNDERSCORE} nameUPPER)
set(${output} "${nameUPPER}" PARENT_SCOPE)
endfunction(canonicalize_tool_name)
# Custom add_subdirectory wrapper
# Takes in a project name (i.e. LLVM), the subdirectory name, and an optional
# path if it differs from the name.
function(add_llvm_subdirectory project type name)
set(add_llvm_external_dir "${ARGN}")
if("${add_llvm_external_dir}" STREQUAL "")
set(add_llvm_external_dir ${name})
endif()
canonicalize_tool_name(${name} nameUPPER)
set(canonical_full_name ${project}_${type}_${nameUPPER})
get_property(already_processed GLOBAL PROPERTY ${canonical_full_name}_PROCESSED)
if(already_processed)
return()
endif()
set_property(GLOBAL PROPERTY ${canonical_full_name}_PROCESSED YES)
if(EXISTS ${CMAKE_CURRENT_SOURCE_DIR}/${add_llvm_external_dir}/CMakeLists.txt)
# Treat it as in-tree subproject.
option(${canonical_full_name}_BUILD
"Whether to build ${name} as part of ${project}" On)
mark_as_advanced(${project}_${type}_${name}_BUILD)
if(${canonical_full_name}_BUILD)
add_subdirectory(${CMAKE_CURRENT_SOURCE_DIR}/${add_llvm_external_dir} ${add_llvm_external_dir})
endif()
else()
set(LLVM_EXTERNAL_${nameUPPER}_SOURCE_DIR
"${LLVM_EXTERNAL_${nameUPPER}_SOURCE_DIR}"
CACHE PATH "Path to ${name} source directory")
set(${canonical_full_name}_BUILD_DEFAULT ON)
if(NOT LLVM_EXTERNAL_${nameUPPER}_SOURCE_DIR OR NOT EXISTS ${LLVM_EXTERNAL_${nameUPPER}_SOURCE_DIR})
set(${canonical_full_name}_BUILD_DEFAULT OFF)
endif()
if("${LLVM_EXTERNAL_${nameUPPER}_BUILD}" STREQUAL "OFF")
set(${canonical_full_name}_BUILD_DEFAULT OFF)
endif()
option(${canonical_full_name}_BUILD
"Whether to build ${name} as part of LLVM"
${${canonical_full_name}_BUILD_DEFAULT})
if (${canonical_full_name}_BUILD)
if(EXISTS ${LLVM_EXTERNAL_${nameUPPER}_SOURCE_DIR})
add_subdirectory(${LLVM_EXTERNAL_${nameUPPER}_SOURCE_DIR} ${add_llvm_external_dir})
elseif(NOT "${LLVM_EXTERNAL_${nameUPPER}_SOURCE_DIR}" STREQUAL "")
message(WARNING "Nonexistent directory for ${name}: ${LLVM_EXTERNAL_${nameUPPER}_SOURCE_DIR}")
endif()
endif()
endif()
endfunction()
# Add external project that may want to be built as part of llvm such as Clang,
# lld, and Polly. This adds two options. One for the source directory of the
# project, which defaults to ${CMAKE_CURRENT_SOURCE_DIR}/${name}. Another to
# enable or disable building it with everything else.
# Additional parameter can be specified as the name of directory.
macro(add_llvm_external_project name)
add_llvm_subdirectory(LLVM TOOL ${name} ${ARGN})
endmacro()
macro(add_llvm_tool_subdirectory name)
add_llvm_external_project(${name})
endmacro(add_llvm_tool_subdirectory)
macro(add_custom_linker_flags name)
if (LLVM_${name}_LINKER_FLAGS)
message(DEBUG "Applying ${LLVM_${name}_LINKER_FLAGS} to ${name}")
target_link_options(${name} PRIVATE ${LLVM_${name}_LINKER_FLAGS})
endif()
endmacro()
function(get_project_name_from_src_var var output)
string(REGEX MATCH "LLVM_EXTERNAL_(.*)_SOURCE_DIR"
MACHED_TOOL "${var}")
if(MACHED_TOOL)
set(${output} ${CMAKE_MATCH_1} PARENT_SCOPE)
else()
set(${output} PARENT_SCOPE)
endif()
endfunction()
function(create_subdirectory_options project type)
file(GLOB sub-dirs "${CMAKE_CURRENT_SOURCE_DIR}/*")
foreach(dir ${sub-dirs})
if(IS_DIRECTORY "${dir}" AND EXISTS "${dir}/CMakeLists.txt")
canonicalize_tool_name(${dir} name)
option(${project}_${type}_${name}_BUILD
"Whether to build ${name} as part of ${project}" On)
mark_as_advanced(${project}_${type}_${name}_BUILD)
endif()
endforeach()
endfunction(create_subdirectory_options)
function(create_llvm_tool_options)
create_subdirectory_options(LLVM TOOL)
endfunction(create_llvm_tool_options)
function(llvm_add_implicit_projects project)
set(list_of_implicit_subdirs "")
file(GLOB sub-dirs "${CMAKE_CURRENT_SOURCE_DIR}/*")
foreach(dir ${sub-dirs})
if(IS_DIRECTORY "${dir}" AND EXISTS "${dir}/CMakeLists.txt")
canonicalize_tool_name(${dir} name)
# I don't like special casing things by order, but the llvm-driver ends up
# linking the object libraries from all the tools that opt-in, so adding
# it separately at the end is probably the simplest case.
if("${name}" STREQUAL "LLVM_DRIVER")
continue()
endif()
if (${project}_TOOL_${name}_BUILD)
get_filename_component(fn "${dir}" NAME)
list(APPEND list_of_implicit_subdirs "${fn}")
endif()
endif()
endforeach()
foreach(external_proj ${list_of_implicit_subdirs})
add_llvm_subdirectory(${project} TOOL "${external_proj}" ${ARGN})
endforeach()
endfunction(llvm_add_implicit_projects)
function(add_llvm_implicit_projects)
llvm_add_implicit_projects(LLVM)
endfunction(add_llvm_implicit_projects)
# Generic support for adding a unittest.
function(add_unittest test_suite test_name)
if( NOT LLVM_BUILD_TESTS )
set(EXCLUDE_FROM_ALL ON)
endif()
if (SUPPORTS_VARIADIC_MACROS_FLAG)
list(APPEND LLVM_COMPILE_FLAGS "-Wno-variadic-macros")
endif()
# Some parts of gtest rely on this GNU extension, don't warn on it.
if(SUPPORTS_GNU_ZERO_VARIADIC_MACRO_ARGUMENTS_FLAG)
list(APPEND LLVM_COMPILE_FLAGS "-Wno-gnu-zero-variadic-macro-arguments")
endif()
if (NOT DEFINED LLVM_REQUIRES_RTTI)
set(LLVM_REQUIRES_RTTI OFF)
endif()
list(APPEND LLVM_LINK_COMPONENTS Support) # gtest needs it for raw_ostream
add_llvm_executable(${test_name} IGNORE_EXTERNALIZE_DEBUGINFO NO_INSTALL_RPATH ${ARGN})
get_subproject_title(subproject_title)
set_target_properties(${test_name} PROPERTIES FOLDER "${subproject_title}/Tests/Unit")
# The runtime benefits of LTO don't outweight the compile time costs for tests.
if(LLVM_ENABLE_LTO)
if((UNIX OR MINGW) AND LINKER_IS_LLD)
if(LLVM_ENABLE_FATLTO AND NOT APPLE)
# When using FatLTO, just use relocatable linking.
set_property(TARGET ${test_name} APPEND_STRING PROPERTY
LINK_FLAGS " -Wl,--no-fat-lto-objects")
else()
set_property(TARGET ${test_name} APPEND_STRING PROPERTY
LINK_FLAGS " -Wl,--lto-O0")
endif()
elseif(LINKER_IS_LLD_LINK)
set_property(TARGET ${test_name} APPEND_STRING PROPERTY
LINK_FLAGS " /opt:lldlto=0")
elseif(APPLE AND NOT uppercase_LLVM_ENABLE_LTO STREQUAL "THIN")
set_property(TARGET ${target_name} APPEND_STRING PROPERTY
LINK_FLAGS " -Wl,-mllvm,-O0")
endif()
endif()
target_link_options(${test_name} PRIVATE "${LLVM_UNITTEST_LINK_FLAGS}")
set(outdir ${CMAKE_CURRENT_BINARY_DIR}/${CMAKE_CFG_INTDIR})
set_output_directory(${test_name} BINARY_DIR ${outdir} LIBRARY_DIR ${outdir})
# libpthreads overrides some standard library symbols, so main
# executable must be linked with it in order to provide consistent
# API for all shared libaries loaded by this executable.
target_link_libraries(${test_name} PRIVATE llvm_gtest_main llvm_gtest ${LLVM_PTHREAD_LIB})
add_dependencies(${test_suite} ${test_name})
endfunction()
# Use for test binaries that call llvm::getInputFileDirectory(). Use of this
# is discouraged.
function(add_unittest_with_input_files test_suite test_name)
set(LLVM_UNITTEST_SOURCE_DIR ${CMAKE_CURRENT_SOURCE_DIR})
configure_file(
${LLVM_MAIN_SRC_DIR}/unittests/unittest.cfg.in
${CMAKE_CURRENT_BINARY_DIR}/llvm.srcdir.txt)
add_unittest(${test_suite} ${test_name} ${ARGN})
endfunction()
# Generic support for adding a benchmark.
function(add_benchmark benchmark_name)
if( NOT LLVM_BUILD_BENCHMARKS )
set(EXCLUDE_FROM_ALL ON)
endif()
add_llvm_executable(${benchmark_name} IGNORE_EXTERNALIZE_DEBUGINFO NO_INSTALL_RPATH ${ARGN})
set(outdir ${CMAKE_CURRENT_BINARY_DIR}/${CMAKE_CFG_INTDIR})
set_output_directory(${benchmark_name} BINARY_DIR ${outdir} LIBRARY_DIR ${outdir})
get_subproject_title(subproject_title)
set_property(TARGET ${benchmark_name} PROPERTY FOLDER "${subproject_title}/Benchmarks")
target_link_libraries(${benchmark_name} PRIVATE benchmark)
endfunction()
# This function canonicalize the CMake variables passed by names
# from CMake boolean to 0/1 suitable for passing into Python or C++,
# in place.
function(llvm_canonicalize_cmake_booleans)
foreach(var ${ARGN})
if(${var})
set(${var} 1 PARENT_SCOPE)
else()
set(${var} 0 PARENT_SCOPE)
endif()
endforeach()
endfunction(llvm_canonicalize_cmake_booleans)
macro(set_llvm_build_mode)
# Configuration-time: See Unit/lit.site.cfg.in
if (CMAKE_CFG_INTDIR STREQUAL ".")
set(LLVM_BUILD_MODE ".")
else ()
set(LLVM_BUILD_MODE "%(build_mode)s")
endif ()
endmacro()
# Takes a list of path names in pathlist and a base directory, and returns
# a list of paths relative to the base directory in out_pathlist.
# Paths that are on a different drive than the basedir (on Windows) or that
# contain symlinks are returned absolute.
# Use with LLVM_LIT_PATH_FUNCTION below.
function(make_paths_relative out_pathlist basedir pathlist)
# Passing ARG_PATH_VALUES as-is to execute_process() makes cmake strip
# empty list entries. So escape the ;s in the list and do the splitting
# ourselves. cmake has no relpath function, so use Python for that.
string(REPLACE ";" "\\;" pathlist_escaped "${pathlist}")
execute_process(COMMAND "${Python3_EXECUTABLE}" "-c" "\n
import os, sys\n
base = sys.argv[1]
def haslink(p):\n
if not p or p == os.path.dirname(p): return False\n
return os.path.islink(p) or haslink(os.path.dirname(p))\n
def relpath(p):\n
if not p: return ''\n
if os.path.splitdrive(p)[0] != os.path.splitdrive(base)[0]: return p\n
if haslink(p) or haslink(base): return p\n
return os.path.relpath(p, base)\n
if len(sys.argv) < 3: sys.exit(0)\n
sys.stdout.write(';'.join(relpath(p) for p in sys.argv[2].split(';')))"
${basedir}
${pathlist_escaped}
OUTPUT_VARIABLE pathlist_relative
ERROR_VARIABLE error
RESULT_VARIABLE result)
if (NOT result EQUAL 0)
message(FATAL_ERROR "make_paths_relative() failed due to error '${result}', with stderr\n${error}")
endif()
set(${out_pathlist} "${pathlist_relative}" PARENT_SCOPE)
endfunction()
# Converts a file that's relative to the current python file to an absolute
# path. Since this uses __file__, it has to be emitted into python files that
# use it and can't be in a lit module. Use with make_paths_relative().
string(CONCAT LLVM_LIT_PATH_FUNCTION
"# Allow generated file to be relocatable.\n"
"import os\n"
"import platform\n"
"def path(p):\n"
" if not p: return ''\n"
" # Follows lit.util.abs_path_preserve_drive, which cannot be imported here.\n"
" if platform.system() == 'Windows':\n"
" return os.path.abspath(os.path.join(os.path.dirname(__file__), p))\n"
" else:\n"
" return os.path.realpath(os.path.join(os.path.dirname(__file__), p))\n"
)
# This function provides an automatic way to 'configure'-like generate a file
# based on a set of common and custom variables, specifically targeting the
# variables needed for the 'lit.site.cfg' files. This function bundles the
# common variables that any Lit instance is likely to need, and custom
# variables can be passed in.
# The keyword PATHS is followed by a list of cmake variable names that are
# mentioned as `path("@varname@")` in the lit.cfg.py.in file. Variables in that
# list are treated as paths that are relative to the directory the generated
# lit.cfg.py file is in, and the `path()` function converts the relative
# path back to absolute form. This makes it possible to move a build directory
# containing lit.cfg.py files from one machine to another.
function(configure_lit_site_cfg site_in site_out)
cmake_parse_arguments(ARG "" "" "MAIN_CONFIG;PATHS" ${ARGN})
if ("${ARG_MAIN_CONFIG}" STREQUAL "")
get_filename_component(INPUT_DIR ${site_in} DIRECTORY)
set(ARG_MAIN_CONFIG "${INPUT_DIR}/lit.cfg")
endif()
foreach(c ${LLVM_TARGETS_TO_BUILD})
set(TARGETS_BUILT "${TARGETS_BUILT} ${c}")
endforeach(c)
set(TARGETS_TO_BUILD ${TARGETS_BUILT})
set(SHLIBEXT "${LTDL_SHLIB_EXT}")
set_llvm_build_mode()
# For standalone builds of subprojects, these might not be the build tree but
# a provided binary tree.
set(LLVM_SOURCE_DIR ${LLVM_MAIN_SRC_DIR})
set(LLVM_BINARY_DIR ${LLVM_BINARY_DIR})
string(REPLACE "${CMAKE_CFG_INTDIR}" "${LLVM_BUILD_MODE}" LLVM_TOOLS_DIR "${LLVM_TOOLS_BINARY_DIR}")
string(REPLACE "${CMAKE_CFG_INTDIR}" "${LLVM_BUILD_MODE}" LLVM_LIBS_DIR "${LLVM_LIBRARY_DIR}")
# Like LLVM_{TOOLS,LIBS}_DIR, but pointing at the build tree.
string(REPLACE "${CMAKE_CFG_INTDIR}" "${LLVM_BUILD_MODE}" CURRENT_TOOLS_DIR "${LLVM_RUNTIME_OUTPUT_INTDIR}")
string(REPLACE "${CMAKE_CFG_INTDIR}" "${LLVM_BUILD_MODE}" CURRENT_LIBS_DIR "${LLVM_LIBRARY_OUTPUT_INTDIR}")
string(REPLACE "${CMAKE_CFG_INTDIR}" "${LLVM_BUILD_MODE}" SHLIBDIR "${LLVM_SHLIB_OUTPUT_INTDIR}")
# FIXME: "ENABLE_SHARED" doesn't make sense, since it is used just for
# plugins. We may rename it.
if(LLVM_ENABLE_PLUGINS)
set(ENABLE_SHARED "1")
else()
set(ENABLE_SHARED "0")
endif()
if(LLVM_ENABLE_ASSERTIONS)
set(ENABLE_ASSERTIONS "1")
else()
set(ENABLE_ASSERTIONS "0")
endif()
set(HOST_OS ${CMAKE_SYSTEM_NAME})
set(HOST_ARCH ${CMAKE_SYSTEM_PROCESSOR})
set(HOST_CC "${CMAKE_C_COMPILER} ${CMAKE_C_COMPILER_ARG1}")
set(HOST_CXX "${CMAKE_CXX_COMPILER} ${CMAKE_CXX_COMPILER_ARG1}")
set(HOST_LDFLAGS "${CMAKE_EXE_LINKER_FLAGS}")
string(CONCAT LIT_SITE_CFG_IN_HEADER
"# Autogenerated from ${site_in}\n# Do not edit!\n\n"
"${LLVM_LIT_PATH_FUNCTION}"
)
# Override config_target_triple (and the env)
if(LLVM_TARGET_TRIPLE_ENV)
# This is expanded into the heading.
string(CONCAT LIT_SITE_CFG_IN_HEADER "${LIT_SITE_CFG_IN_HEADER}"
"import os\n"
"target_env = \"${LLVM_TARGET_TRIPLE_ENV}\"\n"
"config.target_triple = config.environment[target_env] = os.environ.get(target_env, \"${LLVM_TARGET_TRIPLE}\")\n"
)
# This is expanded to; config.target_triple = ""+config.target_triple+""
set(LLVM_TARGET_TRIPLE "\"+config.target_triple+\"")
endif()
if (ARG_PATHS)
# Walk ARG_PATHS and collect the current value of the variables in there.
# list(APPEND) ignores empty elements exactly if the list is empty,
# so start the list with a dummy element and drop it, to make sure that
# even empty values make it into the values list.
set(ARG_PATH_VALUES "dummy")
foreach(path ${ARG_PATHS})
list(APPEND ARG_PATH_VALUES "${${path}}")
endforeach()
list(REMOVE_AT ARG_PATH_VALUES 0)
get_filename_component(OUTPUT_DIR ${site_out} DIRECTORY)
make_paths_relative(
ARG_PATH_VALUES_RELATIVE "${OUTPUT_DIR}" "${ARG_PATH_VALUES}")
list(LENGTH ARG_PATHS len_paths)
list(LENGTH ARG_PATH_VALUES len_path_values)
list(LENGTH ARG_PATH_VALUES_RELATIVE len_path_value_rels)
if ((NOT ${len_paths} EQUAL ${len_path_values}) OR
(NOT ${len_paths} EQUAL ${len_path_value_rels}))
message(SEND_ERROR "PATHS lengths got confused")
endif()
# Transform variables mentioned in ARG_PATHS to relative paths for
# the configure_file() call. Variables are copied to subscopeds by cmake,
# so this only modifies the local copy of the variables.
math(EXPR arg_path_limit "${len_paths} - 1")
foreach(i RANGE ${arg_path_limit})
list(GET ARG_PATHS ${i} val1)
list(GET ARG_PATH_VALUES_RELATIVE ${i} val2)
set(${val1} ${val2})
endforeach()
endif()
configure_file(${site_in} ${site_out} @ONLY)
if (EXISTS "${ARG_MAIN_CONFIG}")
# Remember main config / generated site config for llvm-lit.in.
get_property(LLVM_LIT_CONFIG_FILES GLOBAL PROPERTY LLVM_LIT_CONFIG_FILES)
list(APPEND LLVM_LIT_CONFIG_FILES "${ARG_MAIN_CONFIG}" "${site_out}")
set_property(GLOBAL PROPERTY LLVM_LIT_CONFIG_FILES ${LLVM_LIT_CONFIG_FILES})
endif()
endfunction()
function(dump_all_cmake_variables)
get_cmake_property(_variableNames VARIABLES)
foreach (_variableName ${_variableNames})
message(STATUS "${_variableName}=${${_variableName}}")
endforeach()
endfunction()
function(get_llvm_lit_path base_dir file_name)
cmake_parse_arguments(ARG "ALLOW_EXTERNAL" "" "" ${ARGN})
if (ARG_ALLOW_EXTERNAL)
set (LLVM_EXTERNAL_LIT "" CACHE STRING "Command used to spawn lit")
if ("${LLVM_EXTERNAL_LIT}" STREQUAL "")
set(LLVM_EXTERNAL_LIT "${LLVM_DEFAULT_EXTERNAL_LIT}")
endif()
if (NOT "${LLVM_EXTERNAL_LIT}" STREQUAL "")
if (EXISTS ${LLVM_EXTERNAL_LIT})
get_filename_component(LIT_FILE_NAME ${LLVM_EXTERNAL_LIT} NAME)
get_filename_component(LIT_BASE_DIR ${LLVM_EXTERNAL_LIT} DIRECTORY)
set(${file_name} ${LIT_FILE_NAME} PARENT_SCOPE)
set(${base_dir} ${LIT_BASE_DIR} PARENT_SCOPE)
return()
elseif (NOT DEFINED CACHE{LLVM_EXTERNAL_LIT_MISSING_WARNED_ONCE})
message(WARNING "LLVM_EXTERNAL_LIT set to ${LLVM_EXTERNAL_LIT}, but the path does not exist.")
set(LLVM_EXTERNAL_LIT_MISSING_WARNED_ONCE YES CACHE INTERNAL "")
endif()
endif()
endif()
set(lit_file_name "llvm-lit")
if (CMAKE_HOST_WIN32 AND NOT CYGWIN)
# llvm-lit needs suffix.py for multiprocess to find a main module.
set(lit_file_name "${lit_file_name}.py")
endif ()
set(${file_name} ${lit_file_name} PARENT_SCOPE)
get_property(LLVM_LIT_BASE_DIR GLOBAL PROPERTY LLVM_LIT_BASE_DIR)
if (NOT "${LLVM_LIT_BASE_DIR}" STREQUAL "")
set(${base_dir} ${LLVM_LIT_BASE_DIR} PARENT_SCOPE)
endif()
# Allow individual projects to provide an override
if (NOT "${LLVM_LIT_OUTPUT_DIR}" STREQUAL "")
set(LLVM_LIT_BASE_DIR ${LLVM_LIT_OUTPUT_DIR})
elseif(NOT "${LLVM_RUNTIME_OUTPUT_INTDIR}" STREQUAL "")
set(LLVM_LIT_BASE_DIR ${LLVM_RUNTIME_OUTPUT_INTDIR})
else()
set(LLVM_LIT_BASE_DIR "")
endif()
# Cache this so we don't have to do it again and have subsequent calls
# potentially disagree on the value.
set_property(GLOBAL PROPERTY LLVM_LIT_BASE_DIR ${LLVM_LIT_BASE_DIR})
set(${base_dir} ${LLVM_LIT_BASE_DIR} PARENT_SCOPE)
endfunction()
# A raw function to create a lit target. This is used to implement the testuite
# management functions.
function(add_lit_target target comment)
cmake_parse_arguments(ARG "" "" "PARAMS;DEPENDS;ARGS" ${ARGN})
set(LIT_ARGS "${ARG_ARGS} ${LLVM_LIT_ARGS}")
separate_arguments(LIT_ARGS)
if (NOT CMAKE_CFG_INTDIR STREQUAL ".")
list(APPEND LIT_ARGS --param build_mode=${CMAKE_CFG_INTDIR})
endif ()
# Get the path to the lit to *run* tests with. This can be overriden by
# the user by specifying -DLLVM_EXTERNAL_LIT=<path-to-lit.py>
get_llvm_lit_path(
lit_base_dir
lit_file_name
ALLOW_EXTERNAL
)
set(LIT_COMMAND "${Python3_EXECUTABLE};${lit_base_dir}/${lit_file_name}")
list(APPEND LIT_COMMAND ${LIT_ARGS})
foreach(param ${ARG_PARAMS})
list(APPEND LIT_COMMAND --param ${param})
endforeach()
if (ARG_UNPARSED_ARGUMENTS)
add_custom_target(${target}
COMMAND ${LIT_COMMAND} ${ARG_UNPARSED_ARGUMENTS}
COMMENT "${comment}"
USES_TERMINAL
)
else()
add_custom_target(${target}
COMMAND ${CMAKE_COMMAND} -E echo "${target} does nothing, no tools built.")
message(STATUS "${target} does nothing.")
endif()
get_subproject_title(subproject_title)
set_target_properties(${target} PROPERTIES FOLDER "${subproject_title}/Tests")
if (ARG_DEPENDS)
add_dependencies(${target} ${ARG_DEPENDS})
endif()
# Tests should be excluded from "Build Solution".
set_target_properties(${target} PROPERTIES EXCLUDE_FROM_DEFAULT_BUILD ON)
set_target_properties(${target} PROPERTIES XCODE_GENERATE_SCHEME ON)
endfunction()
# Convert a target name like check-clang to a variable name like CLANG.
function(umbrella_lit_testsuite_var target outvar)
if (NOT target MATCHES "^check-")
message(FATAL_ERROR "umbrella lit suites must be check-*, not '${target}'")
endif()
string(SUBSTRING "${target}" 6 -1 var)
string(REPLACE "-" "_" var ${var})
string(TOUPPER "${var}" var)
set(${outvar} "${var}" PARENT_SCOPE)
endfunction()
# Start recording all lit test suites for a combined 'check-foo' target.
# The recording continues until umbrella_lit_testsuite_end() creates the target.
function(umbrella_lit_testsuite_begin target)
umbrella_lit_testsuite_var(${target} name)
set_property(GLOBAL APPEND PROPERTY LLVM_LIT_UMBRELLAS ${name})
endfunction()
# Create a combined 'check-foo' target for a set of related test suites.
# It runs all suites added since the matching umbrella_lit_testsuite_end() call.
# Tests marked EXCLUDE_FROM_CHECK_ALL are not gathered.
function(umbrella_lit_testsuite_end target)
umbrella_lit_testsuite_var(${target} name)
get_property(testsuites GLOBAL PROPERTY LLVM_${name}_LIT_TESTSUITES)
get_property(params GLOBAL PROPERTY LLVM_${name}_LIT_PARAMS)
get_property(depends GLOBAL PROPERTY LLVM_${name}_LIT_DEPENDS)
get_property(extra_args GLOBAL PROPERTY LLVM_${name}_LIT_EXTRA_ARGS)
# Additional test targets are not gathered, but may be set externally.
get_property(additional_test_targets
GLOBAL PROPERTY LLVM_${name}_ADDITIONAL_TEST_TARGETS)
string(TOLOWER ${name} name)
add_lit_target(${target}
"Running ${name} regression tests"
${testsuites}
PARAMS ${params}
DEPENDS ${depends} ${additional_test_targets}
ARGS ${extra_args}
)
endfunction()
# A function to add a set of lit test suites to be driven through 'check-*' targets.
function(add_lit_testsuite target comment)
cmake_parse_arguments(ARG "EXCLUDE_FROM_CHECK_ALL" "" "PARAMS;DEPENDS;ARGS" ${ARGN})
# EXCLUDE_FROM_ALL excludes the test ${target} out of check-all.
if(NOT ARG_EXCLUDE_FROM_CHECK_ALL)
get_property(gather_names GLOBAL PROPERTY LLVM_LIT_UMBRELLAS)
foreach(name ${gather_names})
# Register the testsuites, params and depends for the umbrella check rule.
set_property(GLOBAL APPEND PROPERTY LLVM_${name}_LIT_TESTSUITES ${ARG_UNPARSED_ARGUMENTS})
set_property(GLOBAL APPEND PROPERTY LLVM_${name}_LIT_PARAMS ${ARG_PARAMS})
set_property(GLOBAL APPEND PROPERTY LLVM_${name}_LIT_DEPENDS ${ARG_DEPENDS})
set_property(GLOBAL APPEND PROPERTY LLVM_${name}_LIT_EXTRA_ARGS ${ARG_ARGS})
endforeach()
endif()
# Produce a specific suffixed check rule.
add_lit_target(${target} ${comment}
${ARG_UNPARSED_ARGUMENTS}
PARAMS ${ARG_PARAMS}
DEPENDS ${ARG_DEPENDS}
ARGS ${ARG_ARGS}
)
endfunction()
function(add_lit_testsuites project directory)
if (NOT LLVM_ENABLE_IDE)
cmake_parse_arguments(ARG "EXCLUDE_FROM_CHECK_ALL" "FOLDER" "PARAMS;DEPENDS;ARGS" ${ARGN})
if (NOT ARG_FOLDER)
get_subproject_title(subproject_title)
set(ARG_FOLDER "${subproject_title}/Tests/LIT Testsuites")
endif()
# Search recursively for test directories by assuming anything not
# in a directory called Inputs contains tests.
file(GLOB_RECURSE to_process LIST_DIRECTORIES true ${directory}/*)
foreach(lit_suite ${to_process})
if(NOT IS_DIRECTORY ${lit_suite})
continue()
endif()
string(FIND ${lit_suite} Inputs is_inputs)
string(FIND ${lit_suite} Output is_output)
if (NOT (is_inputs EQUAL -1 AND is_output EQUAL -1))
continue()
endif()
# Create a check- target for the directory.
string(REPLACE ${directory} "" name_slash ${lit_suite})
if (name_slash)
string(REPLACE "/" "-" name_slash ${name_slash})
string(REPLACE "\\" "-" name_dashes ${name_slash})
string(TOLOWER "${project}${name_dashes}" name_var)
add_lit_target("check-${name_var}" "Running lit suite ${lit_suite}"
${lit_suite}
${EXCLUDE_FROM_CHECK_ALL}
PARAMS ${ARG_PARAMS}
DEPENDS ${ARG_DEPENDS}
ARGS ${ARG_ARGS}
)
set_target_properties(check-${name_var} PROPERTIES FOLDER ${ARG_FOLDER})
endif()
endforeach()
endif()
endfunction()
function(llvm_install_library_symlink name dest type)
cmake_parse_arguments(ARG "FULL_DEST" "COMPONENT" "" ${ARGN})
foreach(path ${CMAKE_MODULE_PATH})
if(EXISTS ${path}/LLVMInstallSymlink.cmake)
set(INSTALL_SYMLINK ${path}/LLVMInstallSymlink.cmake)
break()
endif()
endforeach()
set(component ${ARG_COMPONENT})
if(NOT component)
set(component ${name})
endif()
set(full_name ${CMAKE_${type}_LIBRARY_PREFIX}${name}${CMAKE_${type}_LIBRARY_SUFFIX})
if (ARG_FULL_DEST)
set(full_dest ${dest})
else()
set(full_dest ${CMAKE_${type}_LIBRARY_PREFIX}${dest}${CMAKE_${type}_LIBRARY_SUFFIX})
endif()
if(LLVM_USE_SYMLINKS)
set(LLVM_LINK_OR_COPY create_symlink)
else()
set(LLVM_LINK_OR_COPY copy)
endif()
set(output_dir lib${LLVM_LIBDIR_SUFFIX})
if(WIN32 AND "${type}" STREQUAL "SHARED")
set(output_dir "${CMAKE_INSTALL_BINDIR}")
endif()
install(SCRIPT ${INSTALL_SYMLINK}
CODE "install_symlink(\"${full_name}\" \"${full_dest}\" \"${output_dir}\" \"${LLVM_LINK_OR_COPY}\")"
COMPONENT ${component})
endfunction()
function(llvm_install_symlink project name dest)
get_property(LLVM_DRIVER_TOOLS GLOBAL PROPERTY LLVM_DRIVER_TOOLS)
if(LLVM_TOOL_LLVM_DRIVER_BUILD
AND ${dest} IN_LIST LLVM_DRIVER_TOOLS
AND (NOT LLVM_DISTRIBUTION_COMPONENTS OR ${dest} IN_LIST LLVM_DISTRIBUTION_COMPONENTS)
)
return()
endif()
cmake_parse_arguments(ARG "ALWAYS_GENERATE" "COMPONENT" "" ${ARGN})
foreach(path ${CMAKE_MODULE_PATH})
if(EXISTS ${path}/LLVMInstallSymlink.cmake)
set(INSTALL_SYMLINK ${path}/LLVMInstallSymlink.cmake)
break()
endif()
endforeach()
if(ARG_COMPONENT)
set(component ${ARG_COMPONENT})
else()
if(ARG_ALWAYS_GENERATE)
set(component ${dest})
else()
set(component ${name})
endif()
endif()
set(full_name ${name}${CMAKE_EXECUTABLE_SUFFIX})
set(full_dest ${dest}${CMAKE_EXECUTABLE_SUFFIX})
if (${dest} STREQUAL "llvm-driver")
set(full_dest llvm${CMAKE_EXECUTABLE_SUFFIX})
endif()
if(LLVM_USE_SYMLINKS)
set(LLVM_LINK_OR_COPY create_symlink)
else()
set(LLVM_LINK_OR_COPY copy)
endif()
set(output_dir "${${project}_TOOLS_INSTALL_DIR}")
install(SCRIPT ${INSTALL_SYMLINK}
CODE "install_symlink(\"${full_name}\" \"${full_dest}\" \"${output_dir}\" \"${LLVM_LINK_OR_COPY}\")"
COMPONENT ${component})
if (NOT LLVM_ENABLE_IDE AND NOT ARG_ALWAYS_GENERATE)
add_llvm_install_targets(install-${name}
DEPENDS ${name} ${dest}
COMPONENT ${component}
SYMLINK ${dest})
endif()
endfunction()
function(llvm_add_tool_symlink project link_name target)
cmake_parse_arguments(ARG "ALWAYS_GENERATE" "OUTPUT_DIR" "" ${ARGN})
get_property(LLVM_DRIVER_TOOLS GLOBAL PROPERTY LLVM_DRIVER_TOOLS)
if (${target} IN_LIST LLVM_DRIVER_TOOLS)
set_property(GLOBAL APPEND PROPERTY LLVM_DRIVER_TOOL_ALIASES_${target} ${link_name})
endif()
set(dest_binary "$<TARGET_FILE:${target}>")
# This got a bit gross... For multi-configuration generators the target
# properties return the resolved value of the string, not the build system
# expression. To reconstruct the platform-agnostic path we have to do some
# magic. First we grab one of the types, and a type-specific path. Then from
# the type-specific path we find the last occurrence of the type in the path,
# and replace it with CMAKE_CFG_INTDIR. This allows the build step to be type
# agnostic again.
if(NOT ARG_OUTPUT_DIR)
# If you're not overriding the OUTPUT_DIR, we can make the link relative in
# the same directory.
if(LLVM_USE_SYMLINKS)
set(dest_binary "$<TARGET_FILE_NAME:${target}>")
endif()
if(CMAKE_CONFIGURATION_TYPES)
list(GET CMAKE_CONFIGURATION_TYPES 0 first_type)
string(TOUPPER ${first_type} first_type_upper)
set(first_type_suffix _${first_type_upper})
endif()
get_target_property(target_type ${target} TYPE)
if(${target_type} STREQUAL "STATIC_LIBRARY")
get_target_property(ARG_OUTPUT_DIR ${target} ARCHIVE_OUTPUT_DIRECTORY${first_type_suffix})
elseif(UNIX AND ${target_type} STREQUAL "SHARED_LIBRARY")
get_target_property(ARG_OUTPUT_DIR ${target} LIBRARY_OUTPUT_DIRECTORY${first_type_suffix})
else()
get_target_property(ARG_OUTPUT_DIR ${target} RUNTIME_OUTPUT_DIRECTORY${first_type_suffix})
endif()
if(CMAKE_CONFIGURATION_TYPES)
string(FIND "${ARG_OUTPUT_DIR}" "/${first_type}/" type_start REVERSE)
string(SUBSTRING "${ARG_OUTPUT_DIR}" 0 ${type_start} path_prefix)
string(SUBSTRING "${ARG_OUTPUT_DIR}" ${type_start} -1 path_suffix)
string(REPLACE "/${first_type}/" "/${CMAKE_CFG_INTDIR}/"
path_suffix ${path_suffix})
set(ARG_OUTPUT_DIR ${path_prefix}${path_suffix})
endif()
endif()
if(LLVM_USE_SYMLINKS)
set(LLVM_LINK_OR_COPY create_symlink)
else()
set(LLVM_LINK_OR_COPY copy)
endif()
set(output_path "${ARG_OUTPUT_DIR}/${link_name}${CMAKE_EXECUTABLE_SUFFIX}")
set(target_name ${link_name})
if(TARGET ${link_name})
set(target_name ${link_name}-link)
endif()
if(ARG_ALWAYS_GENERATE)
set_property(DIRECTORY APPEND PROPERTY
ADDITIONAL_MAKE_CLEAN_FILES ${dest_binary})
add_custom_command(TARGET ${target} POST_BUILD
COMMAND ${CMAKE_COMMAND} -E ${LLVM_LINK_OR_COPY} "${dest_binary}" "${output_path}")
else()
add_custom_command(OUTPUT ${output_path}
COMMAND ${CMAKE_COMMAND} -E ${LLVM_LINK_OR_COPY} "${dest_binary}" "${output_path}"
DEPENDS ${target})
# TODO: Make use of generator expressions below once CMake 3.19 or higher is the minimum supported version.
set(should_build_all)
get_target_property(target_excluded_from_all ${target} EXCLUDE_FROM_ALL)
if (NOT target_excluded_from_all)
set(should_build_all ALL)
endif()
add_custom_target(${target_name} ${should_build_all} DEPENDS ${target} ${output_path})
get_subproject_title(subproject_title)
set_target_properties(${target_name} PROPERTIES FOLDER "${subproject_title}/Tools")
# Make sure both the link and target are toolchain tools
if (${link_name} IN_LIST LLVM_TOOLCHAIN_TOOLS AND ${target} IN_LIST LLVM_TOOLCHAIN_TOOLS)
set(TOOL_IS_TOOLCHAIN ON)
endif()
if ((TOOL_IS_TOOLCHAIN OR NOT LLVM_INSTALL_TOOLCHAIN_ONLY) AND LLVM_BUILD_TOOLS)
llvm_install_symlink("${project}" ${link_name} ${target})
endif()
endif()
endfunction()
function(add_llvm_tool_symlink link_name target)
llvm_add_tool_symlink(LLVM ${ARGV})
endfunction()
function(llvm_externalize_debuginfo name)
if(NOT LLVM_EXTERNALIZE_DEBUGINFO)
return()
endif()
if(NOT LLVM_EXTERNALIZE_DEBUGINFO_SKIP_STRIP)
if(APPLE)
if(NOT CMAKE_STRIP)
set(CMAKE_STRIP xcrun strip)
endif()
set(strip_command COMMAND ${CMAKE_STRIP} -S -x $<TARGET_FILE:${name}>)
else()
set(strip_command COMMAND ${CMAKE_STRIP} -g -x $<TARGET_FILE:${name}>)
endif()
endif()
if(APPLE)
if(LLVM_EXTERNALIZE_DEBUGINFO_EXTENSION)
set(file_ext ${LLVM_EXTERNALIZE_DEBUGINFO_EXTENSION})
else()
set(file_ext dSYM)
endif()
set(output_name "$<TARGET_FILE_NAME:${name}>.${file_ext}")
if(LLVM_EXTERNALIZE_DEBUGINFO_OUTPUT_DIR)
set(output_path "-o=${LLVM_EXTERNALIZE_DEBUGINFO_OUTPUT_DIR}/${output_name}")
else()
set(output_path "-o=${output_name}")
endif()
if(CMAKE_CXX_FLAGS MATCHES "-flto"
OR CMAKE_CXX_FLAGS_${uppercase_CMAKE_BUILD_TYPE} MATCHES "-flto")
set(lto_object ${CMAKE_CURRENT_BINARY_DIR}/${CMAKE_CFG_INTDIR}/${name}-lto.o)
set_property(TARGET ${name} APPEND_STRING PROPERTY
LINK_FLAGS " -Wl,-object_path_lto,${lto_object}")
endif()
if(NOT CMAKE_DSYMUTIL)
set(CMAKE_DSYMUTIL xcrun dsymutil)
endif()
add_custom_command(TARGET ${name} POST_BUILD
COMMAND ${CMAKE_DSYMUTIL} ${output_path} $<TARGET_FILE:${name}>
${strip_command}
)
else()
add_custom_command(TARGET ${name} POST_BUILD
COMMAND ${CMAKE_OBJCOPY} --only-keep-debug $<TARGET_FILE:${name}> $<TARGET_FILE:${name}>.debug
${strip_command} -R .gnu_debuglink
COMMAND ${CMAKE_OBJCOPY} --add-gnu-debuglink=$<TARGET_FILE:${name}>.debug $<TARGET_FILE:${name}>
)
endif()
endfunction()
# Usage: llvm_codesign(name [FORCE] [ENTITLEMENTS file] [BUNDLE_PATH path])
function(llvm_codesign name)
cmake_parse_arguments(ARG "FORCE" "ENTITLEMENTS;BUNDLE_PATH" "" ${ARGN})
if(NOT LLVM_CODESIGNING_IDENTITY)
return()
endif()
if(CMAKE_GENERATOR STREQUAL "Xcode")
set_target_properties(${name} PROPERTIES
XCODE_ATTRIBUTE_CODE_SIGN_IDENTITY ${LLVM_CODESIGNING_IDENTITY}
)
if(DEFINED ARG_ENTITLEMENTS)
set_target_properties(${name} PROPERTIES
XCODE_ATTRIBUTE_CODE_SIGN_ENTITLEMENTS ${ARG_ENTITLEMENTS}
)
endif()
elseif(APPLE AND CMAKE_HOST_SYSTEM_NAME MATCHES Darwin)
if(NOT CMAKE_CODESIGN)
set(CMAKE_CODESIGN xcrun codesign)
endif()
if(NOT CMAKE_CODESIGN_ALLOCATE)
execute_process(
COMMAND xcrun -f codesign_allocate
OUTPUT_STRIP_TRAILING_WHITESPACE
OUTPUT_VARIABLE CMAKE_CODESIGN_ALLOCATE
)
endif()
if(DEFINED ARG_ENTITLEMENTS)
set(pass_entitlements --entitlements ${ARG_ENTITLEMENTS})
endif()
if (NOT ARG_BUNDLE_PATH)
set(ARG_BUNDLE_PATH $<TARGET_FILE:${name}>)
endif()
# ld64 now always codesigns the binaries it creates. Apply the force arg
# unconditionally so that we can - for example - add entitlements to the
# targets that need it.
set(force_flag "-f")
add_custom_command(
TARGET ${name} POST_BUILD
COMMAND ${CMAKE_COMMAND} -E
env CODESIGN_ALLOCATE=${CMAKE_CODESIGN_ALLOCATE}
${CMAKE_CODESIGN} -s ${LLVM_CODESIGNING_IDENTITY}
${pass_entitlements} ${force_flag} ${ARG_BUNDLE_PATH}
)
endif()
endfunction()
function(llvm_setup_rpath name)
if(CMAKE_INSTALL_RPATH)
return()
endif()
if(LLVM_INSTALL_PREFIX AND NOT (LLVM_INSTALL_PREFIX STREQUAL CMAKE_INSTALL_PREFIX))
set(extra_libdir ${LLVM_LIBRARY_DIR})
elseif(LLVM_BUILD_LIBRARY_DIR)
set(extra_libdir ${LLVM_LIBRARY_DIR})
endif()
if (APPLE)
set(_install_name_dir INSTALL_NAME_DIR "@rpath")
set(_install_rpath "@loader_path/../lib${LLVM_LIBDIR_SUFFIX}" ${extra_libdir})
elseif(${CMAKE_SYSTEM_NAME} MATCHES "AIX" AND BUILD_SHARED_LIBS)
# $ORIGIN is not interpreted at link time by aix ld.
# Since BUILD_SHARED_LIBS is only recommended for use by developers,
# hardcode the rpath to build/install lib dir first in this mode.
# FIXME: update this when there is better solution.
set(_install_rpath "${LLVM_LIBRARY_OUTPUT_INTDIR}" "${CMAKE_INSTALL_PREFIX}/lib${LLVM_LIBDIR_SUFFIX}" ${extra_libdir})
elseif(UNIX)
set(_build_rpath "\$ORIGIN/../lib${LLVM_LIBDIR_SUFFIX}" ${extra_libdir})
set(_install_rpath "\$ORIGIN/../lib${LLVM_LIBDIR_SUFFIX}")
if(${CMAKE_SYSTEM_NAME} MATCHES "(FreeBSD|DragonFly)")
set_property(TARGET ${name} APPEND_STRING PROPERTY
LINK_FLAGS " -Wl,-z,origin ")
endif()
if(LLVM_LINKER_IS_GNULD AND NOT ${LLVM_LIBRARY_OUTPUT_INTDIR} STREQUAL "")
# $ORIGIN is not interpreted at link time by ld.bfd
set_property(TARGET ${name} APPEND_STRING PROPERTY
LINK_FLAGS " -Wl,-rpath-link,${LLVM_LIBRARY_OUTPUT_INTDIR} ")
endif()
else()
return()
endif()
# Enable BUILD_WITH_INSTALL_RPATH unless CMAKE_BUILD_RPATH is set and not
# building for macOS or AIX, as those platforms seemingly require it.
# On AIX, the tool chain doesn't support modifying rpaths/libpaths for XCOFF
# on install at the moment, so BUILD_WITH_INSTALL_RPATH is required.
if("${CMAKE_BUILD_RPATH}" STREQUAL "")
if(${CMAKE_SYSTEM_NAME} MATCHES "Darwin|AIX")
set_property(TARGET ${name} PROPERTY BUILD_WITH_INSTALL_RPATH ON)
else()
set_property(TARGET ${name} APPEND PROPERTY BUILD_RPATH "${_build_rpath}")
endif()
endif()
set_target_properties(${name} PROPERTIES
INSTALL_RPATH "${_install_rpath}"
${_install_name_dir})
endfunction()
function(setup_dependency_debugging name)
if(NOT LLVM_DEPENDENCY_DEBUGGING)
return()
endif()
if("intrinsics_gen" IN_LIST ARGN)
return()
endif()
set(deny_attributes_inc "(deny file* (literal \"${LLVM_BINARY_DIR}/include/llvm/IR/Attributes.inc\"))")
set(deny_intrinsics_inc "(deny file* (literal \"${LLVM_BINARY_DIR}/include/llvm/IR/Intrinsics.inc\"))")
set(sandbox_command "sandbox-exec -p '(version 1) (allow default) ${deny_attributes_inc} ${deny_intrinsics_inc}'")
set_target_properties(${name} PROPERTIES RULE_LAUNCH_COMPILE ${sandbox_command})
endfunction()
# If the sources at the given `path` are under version control, set `out_var`
# to the the path of a file which will be modified when the VCS revision
# changes, attempting to create that file if it does not exist; if no such
# file exists and one cannot be created, instead set `out_var` to the
# empty string.
#
# If the sources are not under version control, do not define `out_var`.
function(find_first_existing_vc_file path out_var)
if(NOT EXISTS "${path}")
return()
endif()
find_package(Git)
if(GIT_FOUND)
execute_process(COMMAND ${GIT_EXECUTABLE} rev-parse --git-dir
WORKING_DIRECTORY ${path}
RESULT_VARIABLE git_result
OUTPUT_VARIABLE git_output
ERROR_QUIET)
if(git_result EQUAL 0)
string(STRIP "${git_output}" git_output)
get_filename_component(git_dir ${git_output} ABSOLUTE BASE_DIR ${path})
# Some branchless cases (e.g. 'repo') may not yet have .git/logs/HEAD
if (NOT EXISTS "${git_dir}/logs/HEAD")
execute_process(COMMAND ${CMAKE_COMMAND} -E touch HEAD
WORKING_DIRECTORY "${git_dir}/logs"
RESULT_VARIABLE touch_head_result
ERROR_QUIET)
if (NOT touch_head_result EQUAL 0)
set(${out_var} "" PARENT_SCOPE)
return()
endif()
endif()
set(${out_var} "${git_dir}/logs/HEAD" PARENT_SCOPE)
endif()
endif()
endfunction()
function(get_host_tool_path tool_name setting_name exe_var_name target_var_name)
set(${setting_name}_DEFAULT "")
if(LLVM_NATIVE_TOOL_DIR)
if(EXISTS "${LLVM_NATIVE_TOOL_DIR}/${tool_name}${LLVM_HOST_EXECUTABLE_SUFFIX}")
set(${setting_name}_DEFAULT "${LLVM_NATIVE_TOOL_DIR}/${tool_name}${LLVM_HOST_EXECUTABLE_SUFFIX}")
endif()
endif()
set(${setting_name} "${${setting_name}_DEFAULT}" CACHE
STRING "Host ${tool_name} executable. Saves building if cross-compiling.")
if(${setting_name})
set(exe_name ${${setting_name}})
set(target_name "")
elseif(LLVM_USE_HOST_TOOLS)
get_native_tool_path(${tool_name} exe_name)
set(target_name ${exe_name})
else()
set(exe_name $<TARGET_FILE:${tool_name}>)
set(target_name ${tool_name})
endif()
set(${exe_var_name} "${exe_name}" CACHE STRING "")
set(${target_var_name} "${target_name}" CACHE STRING "")
endfunction()
function(setup_host_tool tool_name setting_name exe_var_name target_var_name)
get_host_tool_path(${tool_name} ${setting_name} ${exe_var_name} ${target_var_name})
# Set up a native tool build if necessary
if(LLVM_USE_HOST_TOOLS AND NOT ${setting_name})
build_native_tool(${tool_name} exe_name DEPENDS ${tool_name})
add_custom_target(${target_var_name} DEPENDS ${exe_name})
get_subproject_title(subproject_title)
set_target_properties(${target_var_name} PROPERTIES FOLDER "${subproject_title}/Native")
endif()
endfunction()
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