function(llvm_update_compile_flags name
) if("${sources}" MATCHES "\\.c(;|$)")
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) list(APPEND LLVM_COMPILE_FLAGS
"/EHsc") if(LLVM_COMPILER_IS_GCC_COMPATIBLE
) list(APPEND LLVM_COMPILE_FLAGS
"-fno-exceptions") if(NOT LLVM_ENABLE_UNWIND_TABLES
) list(APPEND LLVM_COMPILE_FLAGS
"-fno-unwind-tables") list(APPEND LLVM_COMPILE_FLAGS
"-fno-asynchronous-unwind-tables") 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")
# 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") list(APPEND LLVM_COMPILE_FLAGS
"/GR-") elseif (CMAKE_CXX_COMPILER_ID
MATCHES "XL") list(APPEND LLVM_COMPILE_FLAGS
"-qnortti") list(APPEND LLVM_COMPILE_FLAGS
"/GR")
# 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
" ${LLVM_COMPILE_CFLAGS}")
if("${suf}" STREQUAL ".cpp") COMPILE_FLAGS "${target_compile_flags}")
if("${suf}" STREQUAL ".c") COMPILE_FLAGS "${target_compile_cflags}")
# Update target props, since all sources are C++.
COMPILE_FLAGS "${target_compile_flags}")
set_property(TARGET ${name} APPEND PROPERTY COMPILE_DEFINITIONS
${LLVM_COMPILE_DEFINITIONS})
function(add_llvm_symbol_exports target_name export_file
) if(${CMAKE_SYSTEM_NAME} MATCHES "Darwin") set(native_export_file
"${target_name}.exports") COMMAND sed -e "s/^/_/" < ${export_file} > ${native_export_file}
DEPENDS ${export_file}
VERBATIM
COMMENT "Creating export file for ${target_name}")
LINK_FLAGS " -Wl,-exported_symbols_list,\"${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
"${export_file}") LINK_FLAGS " -Wl,-bE:${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
"${target_name}.exports") # FIXME: Don't write the "local:" line on OpenBSD.
# in the export file, also add a linker script to version LLVM symbols (form: LLVM_N.M)
COMMAND "${Python3_EXECUTABLE}" "-c"
"import sys; \
lines = [' ' + l.rstrip() for l in sys.stdin] + [' local: *;']; \
print('LLVM_${LLVM_VERSION_MAJOR} {'); \
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}) LINK_FLAGS " -Wl,-M,\"${CMAKE_CURRENT_BINARY_DIR}/${native_export_file}\"")
LINK_FLAGS " -Wl,--version-script,\"${CMAKE_CURRENT_BINARY_DIR}/${native_export_file}\"")
set(native_export_file
"${target_name}.def")
COMMAND "${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}/${native_export_file}") # cl.exe or clang-cl, i.e. MSVC style command line interface
set(export_file_linker_flag
"/DEF:\"${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}\"") # ${export_file_linker_flag}, which is the plain file name, works as is
# when passed to the compiler driver, which then passes it on to the
# linker as an input file.
set(export_file_linker_flag
"\"${export_file_linker_flag}\"") message(FATAL_ERROR "Unsupported Windows toolchain") LINK_FLAGS " ${export_file_linker_flag}")
if(extension
STREQUAL ".cpp") set(first_source_file
${src})
# 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})
PROPERTY ADDITIONAL_MAKE_CLEAN_FILES ${native_export_file})
# 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)
if (NOT DEFINED LLVM_LINKER_DETECTED
AND NOT WIN32
) # Detect what linker we have here.
# Linkers with ld64-compatible flags.
set(version_flag
"-Wl,-v") # Linkers with BFD ld-compatible flags.
set(version_flag
"-Wl,--version")
set(command
${CMAKE_C_COMPILER} -fuse-ld=
${LLVM_USE_LINKER} ${version_flag} -o
${DEVNULL}) set(command
${CMAKE_C_COMPILER} ${flags} ${version_flag} -o
${DEVNULL}) COMMAND ${command}
OUTPUT_VARIABLE stdout
ERROR_VARIABLE stderr
)
if("${stderr}" MATCHES "PROJECT:ld64") set(LLVM_LINKER_DETECTED YES
CACHE INTERNAL "") set(LLVM_LINKER_IS_LD64 YES
CACHE INTERNAL "") message(STATUS "Linker detection: ld64") 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") set(LLVM_LINKER_DETECTED NO
CACHE INTERNAL "") message(STATUS "Linker detection: unknown") 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("${stderr}" MATCHES "Solaris Link Editors" OR "${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") set(LLVM_LINKER_DETECTED NO
CACHE INTERNAL "") message(STATUS "Linker detection: unknown")
get_llvm_distribution(${target_name} in_distribution in_distribution_var)
# Don't LTO optimize targets that aren't part of any distribution.
# We may consider avoiding LTO altogether by using -fembed-bitcode
# and teaching the linker to select machine code from .o files, see
# https://lists.llvm.org/pipermail/llvm-dev/2021-April/149843.html
if((UNIX
OR MINGW
) AND LINKER_IS_LLD
) LINK_FLAGS " -Wl,--lto-O0")
LINK_FLAGS " /opt:lldlto=0")
elseif(APPLE
AND NOT uppercase_LLVM_ENABLE_LTO
STREQUAL "THIN") LINK_FLAGS " -Wl,-mllvm,-O0")
# Don't use linker optimizations in debug builds since it slows down the
# linker in a context where the optimizations are not important.
if (NOT uppercase_CMAKE_BUILD_TYPE
STREQUAL "DEBUG") if(NOT LLVM_NO_DEAD_STRIP
) if(${CMAKE_SYSTEM_NAME} MATCHES "Darwin") # ld64's implementation of -dead_strip breaks tools that use plugins.
LINK_FLAGS " -Wl,-dead_strip")
elseif(${CMAKE_SYSTEM_NAME} MATCHES "SunOS") # Support for ld -z discard-unused=sections was only added in
# Solaris 11.4.
llvm_check_linker_flag(CXX "-Wl,-z,discard-unused=sections" LINKER_SUPPORTS_Z_DISCARD_UNUSED)
if (LINKER_SUPPORTS_Z_DISCARD_UNUSED
) LINK_FLAGS " -Wl,-z,discard-unused=sections")
elseif(NOT MSVC
AND NOT CMAKE_SYSTEM_NAME
MATCHES "AIX|OS390") # TODO Revisit this later on z/OS.
LINK_FLAGS " -Wl,--gc-sections")
else() #LLVM_NO_DEAD_STRIP if(${CMAKE_SYSTEM_NAME} MATCHES "AIX") LINK_FLAGS " -Wl,-bnogc")
if(ARG_SUPPORT_PLUGINS
AND ${CMAKE_SYSTEM_NAME} MATCHES "AIX") LINK_FLAGS " -Wl,-brtl")
# 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.
cmake_parse_arguments(ARG "" "BINARY_DIR;LIBRARY_DIR" "" ${ARGN})
# module_dir -- corresponding to LIBRARY_OUTPUT_DIRECTORY.
# It affects output of add_library(MODULE).
# DLL platform
set(module_dir
${ARG_BINARY_DIR}) set(module_dir
${ARG_LIBRARY_DIR}) if(NOT "${CMAKE_CFG_INTDIR}" STREQUAL ".") foreach(build_mode
${CMAKE_CONFIGURATION_TYPES}) string(TOUPPER "${build_mode}" CONFIG_SUFFIX
) string(REPLACE ${CMAKE_CFG_INTDIR} ${build_mode} bi
${ARG_BINARY_DIR}) string(REPLACE ${CMAKE_CFG_INTDIR} ${build_mode} li
${ARG_LIBRARY_DIR}) string(REPLACE ${CMAKE_CFG_INTDIR} ${build_mode} mi
${module_dir})
# 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
) 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}) set(windows_resource_file
${resource_file} PARENT_SCOPE) endif(MSVC
AND CMAKE_HOST_SYSTEM_NAME
STREQUAL "Windows")
set(${OUT_VAR} ${sources} PARENT_SCOPE)
# 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
${LLVM_VERSION_MAJOR})
if (NOT DEFINED ARG_VERSION_MINOR
) if (${LLVM_VERSION_MINOR}) set(ARG_VERSION_MINOR
${LLVM_VERSION_MINOR})
if (NOT DEFINED ARG_VERSION_PATCHLEVEL
) if (${LLVM_VERSION_PATCH}) set(ARG_VERSION_PATCHLEVEL
${LLVM_VERSION_PATCH}) set(ARG_VERSION_PATCHLEVEL 0
)
if (NOT DEFINED ARG_VERSION_STRING
) set(ARG_VERSION_STRING
${PACKAGE_VERSION}) set(ARG_VERSION_STRING 0
)
if (NOT DEFINED ARG_PRODUCT_NAME
) set(ARG_PRODUCT_NAME
"LLVM")
PROPERTY COMPILE_FLAGS /nologo)
PROPERTY COMPILE_DEFINITIONS
"RC_VERSION_FIELD_1=${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}\"")
# 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.
# )
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}) set(ALL_FILES
${ARG_OBJLIBS}) llvm_process_sources(ALL_FILES ${ARG_UNPARSED_ARGUMENTS} ${ARG_ADDITIONAL_HEADERS})
if(ARG_SHARED
OR ARG_STATIC
) message(WARNING
"MODULE with SHARED|STATIC doesn't make sense.") # Plugins that link against a tool are allowed even when plugins in general are not
if(NOT LLVM_ENABLE_PLUGINS
AND NOT (ARG_PLUGIN_TOOL
AND LLVM_EXPORT_SYMBOLS_FOR_PLUGINS
)) message(STATUS "${name} ignored -- Loadable modules not supported on this platform.") message(WARNING
"PLUGIN_TOOL without MODULE doesn't make sense.") if(BUILD_SHARED_LIBS
AND NOT ARG_STATIC
)
# Generate objlib
if((ARG_SHARED
AND ARG_STATIC
) OR ARG_OBJECT
) # Generate an obj library for both targets.
set(obj_name
"obj.${name}") ${ALL_FILES}
)
llvm_update_compile_flags(${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 ${DUMMY_FILE} APPEND_STRING
PROPERTY COMPILE_FLAGS
"-Wno-empty-translation-unit") set(ALL_FILES
"$<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>)
# 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.
cmake_parse_arguments(LINK_LIBS_ARG
""
""
"PUBLIC;PRIVATE"
${ARG_LINK_LIBS})
foreach(link_lib
${LINK_LIBS_ARG_PUBLIC}) # Can't specify a dependence on -lpthread
if(NOT ${link_lib} STREQUAL ${LLVM_PTHREAD_LIB})
if(ARG_SHARED
AND ARG_STATIC
) # static
set(name_static
"${name}_static") set(output_name OUTPUT_NAME
"${ARG_OUTPUT_NAME}") # DEPENDS has been appended to LLVM_COMMON_LIBS.
llvm_add_library(${name_static} STATIC
${output_name}
OBJLIBS ${ALL_FILES} # objlib
LINK_LIBS ${ARG_LINK_LIBS}
LINK_COMPONENTS ${ARG_LINK_COMPONENTS}
)
# Bring in the target link info from our original target.
target_link_directories(${name_static} PRIVATE $<TARGET_PROPERTY:${name},LINK_DIRECTORIES>)
# FIXME: Add name_static to anywhere in TARGET ${name}'s PROPERTY.
add_windows_version_resource_file(ALL_FILES ${ALL_FILES})
set_property(GLOBAL APPEND PROPERTY LLVM_COMPONENT_LIBS
${name})
if(NOT ARG_NO_INSTALL_RPATH
) if(ARG_MODULE
OR ARG_SHARED
) llvm_setup_rpath(${name})
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
${windows_resource_file} PARENT_SCOPE)
set_output_directory(${name} BINARY_DIR ${LLVM_RUNTIME_OUTPUT_INTDIR} LIBRARY_DIR ${LLVM_LIBRARY_OUTPUT_INTDIR})
# $<TARGET_OBJECTS> doesn't require compile flags.
llvm_update_compile_flags(${name})
add_link_opts( ${name} )
PROPERTIES
OUTPUT_NAME ${ARG_OUTPUT_NAME}
)
PREFIX ""
SUFFIX ${LLVM_PLUGIN_EXT}
)
PREFIX ""
)
# 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
) PROPERTIES
# Since 4.0.0, the ABI version is indicated by the major version
SOVERSION ${LLVM_VERSION_MAJOR}${LLVM_VERSION_SUFFIX}
VERSION ${LLVM_VERSION_MAJOR}${LLVM_VERSION_SUFFIX})
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.
if (LLVM_EXPORTED_SYMBOL_FILE
) add_llvm_symbol_exports( ${name} ${LLVM_EXPORTED_SYMBOL_FILE} )
if(NOT APPLE
AND ARG_SONAME
) if(${output_name} STREQUAL "output_name-NOTFOUND") 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}) llvm_install_library_symlink(${api_name} ${library_name} SHARED
COMPONENT ${name})
llvm_install_library_symlink(${output_name} ${library_name} SHARED
COMPONENT ${name})
# We can use PRIVATE since SO knows its dependent libs.
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
) llvm_map_components_to_libnames(llvm_libs
${ARG_LINK_COMPONENTS}
${LLVM_LINK_COMPONENTS}
)
# 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})
${ARG_LINK_LIBS}
${lib_deps}
${llvm_libs}
)
# Add dependencies also to objlibs.
# CMake issue 14747 -- add_dependencies() might be ignored to objlib's user.
if(ARG_SHARED
OR ARG_MODULE
) llvm_externalize_debuginfo(${name})
llvm_codesign(${name} ENTITLEMENTS ${ARG_ENTITLEMENTS} BUNDLE_PATH ${ARG_BUNDLE_PATH})
# 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
) POST_BUILD
COMMAND touch ${LLVM_LIBRARY_DIR}/${CMAKE_STATIC_LIBRARY_PREFIX}${name}${CMAKE_STATIC_LIBRARY_SUFFIX}
)
function(add_llvm_install_targets target
) cmake_parse_arguments(ARG "" "COMPONENT;PREFIX;SYMLINK" "DEPENDS" ${ARGN})
set(component_option -DCMAKE_INSTALL_COMPONENT=
"${ARG_COMPONENT}") set(prefix_option -DCMAKE_INSTALL_PREFIX=
"${ARG_PREFIX}")
list(APPEND target_dependencies
${dependency}) list(APPEND file_dependencies
${dependency})
DEPENDS ${file_dependencies}
COMMAND "${CMAKE_COMMAND}"
${component_option}
${prefix_option}
-P "${CMAKE_BINARY_DIR}/cmake_install.cmake"
USES_TERMINAL)
DEPENDS ${file_dependencies}
COMMAND "${CMAKE_COMMAND}"
${component_option}
${prefix_option}
-DCMAKE_INSTALL_DO_STRIP=1
-P "${CMAKE_BINARY_DIR}/cmake_install.cmake"
USES_TERMINAL)
# 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.
cmake_parse_arguments(ARG "HAS_JIT" "" "LINK_COMPONENTS" ${ARGN})
set_property(TARGET ${name} PROPERTY LLVM_LINK_COMPONENTS
${ARG_LINK_COMPONENTS})
# 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})
set_property(GLOBAL PROPERTY LLVM_COMPONENT_NAME_
${ARG_COMPONENT_NAME} ${component_name})
set_property(TARGET ${ARG_ADD_TO_COMPONENT} APPEND PROPERTY LLVM_LINK_COMPONENTS
${component_name})
macro(add_llvm_library name
) cmake_parse_arguments(ARG
"SHARED;BUILDTREE_ONLY;MODULE;INSTALL_WITH_TOOLCHAIN"
""
""
${ARGN})
llvm_add_library(${name} MODULE ${ARG_UNPARSED_ARGUMENTS})
elseif( BUILD_SHARED_LIBS
OR ARG_SHARED
) llvm_add_library(${name} SHARED ${ARG_UNPARSED_ARGUMENTS})
llvm_add_library(${name} ${ARG_UNPARSED_ARGUMENTS})
# 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
)
if (ARG_MODULE
AND NOT TARGET ${name}) # Add empty "phony" target
set_property(GLOBAL APPEND PROPERTY LLVM_EXPORTS_BUILDTREE_ONLY
${name}) if (NOT LLVM_INSTALL_TOOLCHAIN_ONLY
OR ARG_INSTALL_WITH_TOOLCHAIN
) set(umbrella UMBRELLA llvm-libraries
)
get_target_export_arg(${name} LLVM export_to_llvmexports ${umbrella})
${export_to_llvmexports}
LIBRARY DESTINATION lib${LLVM_LIBDIR_SUFFIX} COMPONENT ${name}
ARCHIVE DESTINATION lib${LLVM_LIBDIR_SUFFIX} COMPONENT ${name}
RUNTIME DESTINATION "${CMAKE_INSTALL_BINDIR}" COMPONENT ${name})
add_llvm_install_targets(install-${name}
DEPENDS ${name}
COMPONENT ${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}") ${ALL_FILES}
)
llvm_update_compile_flags(${obj_name})
set(ALL_FILES
"$<TARGET_OBJECTS:${obj_name}>")
string(REPLACE "-" "_" TOOL_NAME
${name}) if(EXISTS ${path}/llvm-driver-template.cpp.in
) ${path}/llvm-driver-template.cpp.in
${CMAKE_CURRENT_BINARY_DIR}/${name}-driver.cpp)
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} ${name}) llvm_config(${obj_name} ${USE_SHARED} ${LLVM_LINK_COMPONENTS} )
macro(add_llvm_executable name
) cmake_parse_arguments(ARG
"DISABLE_LLVM_LINK_LLVM_DYLIB;IGNORE_EXTERNALIZE_DEBUGINFO;NO_INSTALL_RPATH;SUPPORT_PLUGINS"
"ENTITLEMENTS;BUNDLE_PATH"
""
${ARGN})
generate_llvm_objects(${name} ${ARG_UNPARSED_ARGUMENTS})
add_windows_version_resource_file(ALL_FILES ${ALL_FILES})
# Note: the dummy.cpp source file provides no definitions. However,
# it forces Xcode to properly link the static library.
list(APPEND ALL_FILES
"${LLVM_MAIN_SRC_DIR}/cmake/dummy.cpp")
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)
set_property(TARGET ${name} PROPERTY INSTALL_RPATH
"${LLVM_LOCAL_RPATH}")
if(DEFINED windows_resource_file
) set_windows_version_resource_properties(${name} ${windows_resource_file})
# $<TARGET_OBJECTS> doesn't require compile flags.
if(NOT LLVM_ENABLE_OBJLIB
) llvm_update_compile_flags(${name})
if (ARG_SUPPORT_PLUGINS
AND NOT ${CMAKE_SYSTEM_NAME} MATCHES "AIX") set(LLVM_NO_DEAD_STRIP On
)
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.
if (LLVM_EXPORTED_SYMBOL_FILE
) add_llvm_symbol_exports( ${name} ${LLVM_EXPORTED_SYMBOL_FILE} )
endif(LLVM_EXPORTED_SYMBOL_FILE
)
if (LLVM_LINK_LLVM_DYLIB
AND NOT ARG_DISABLE_LLVM_LINK_LLVM_DYLIB
) set(USE_SHARED USE_SHARED
)
set(EXCLUDE_FROM_ALL OFF) set_output_directory(${name} BINARY_DIR ${LLVM_RUNTIME_OUTPUT_INTDIR} LIBRARY_DIR ${LLVM_LIBRARY_OUTPUT_INTDIR})
llvm_config( ${name} ${USE_SHARED} ${LLVM_LINK_COMPONENTS} )
if( LLVM_COMMON_DEPENDS
) endif( LLVM_COMMON_DEPENDS
)
if(NOT ARG_IGNORE_EXTERNALIZE_DEBUGINFO
) llvm_externalize_debuginfo(${name})
# 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.
llvm_codesign(${name} ENTITLEMENTS ${ARG_ENTITLEMENTS} BUNDLE_PATH ${ARG_BUNDLE_PATH})
# 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.
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) 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
)
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
) set_property(GLOBAL APPEND PROPERTY LLVM_STATIC_EXTENSIONS
${name}) add_llvm_library(${name} MODULE ${ARG_UNPARSED_ARGUMENTS})
add_llvm_library(${name} OBJECT ${ARG_UNPARSED_ARGUMENTS})
message(STATUS "Registering ${name} as a pass plugin (static build: ${LLVM_${name_upper}_LINK_INTO_TOOLS})")
# 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.
#
cmake_parse_arguments(ARG
"GEN_CONFIG" "" ""
${ARGN})
get_property(LLVM_STATIC_EXTENSIONS
GLOBAL PROPERTY LLVM_STATIC_EXTENSIONS
)
# 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
${llvm_extension})
# Eventually generate the extension headers, and store config to a cmake file
# for usage in third-party configuration.
## Part 1: Extension header to be included whenever we need extension
# processing.
if(NOT DEFINED LLVM_INSTALL_PACKAGE_DIR
) message(FATAL_ERROR "LLVM_INSTALL_PACKAGE_DIR must be defined and writable. GEN_CONFIG should only be passe when building LLVM proper.") # LLVM_INSTALL_PACKAGE_DIR might be absolute, so don't reuse below.
string(REPLACE "${CMAKE_CFG_INTDIR}" "." llvm_cmake_builddir
"${LLVM_LIBRARY_DIR}") set(llvm_cmake_builddir
"${llvm_cmake_builddir}/cmake/llvm") "${llvm_cmake_builddir}/LLVMConfigExtensions.cmake"
"set(LLVM_STATIC_EXTENSIONS ${LLVM_STATIC_EXTENSIONS})")
${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(${llvm_extension})\n") file(APPEND "${ExtensionDef}.tmp" "#undef HANDLE_EXTENSION\n")
# only replace if there's an actual change
"${ExtensionDef}.tmp"
"${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
${llvm_plugin_deps_length})
list(LENGTH LLVM_STATIC_EXTENSIONS llvm_static_extension_count
) "${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}) STRING(REGEX REPLACE "^LLVM" "" plugin_dep_name
${plugin_dep_name}) STRING(TOLOWER ${plugin_dep_name} plugin_dep_name
) file(APPEND "${ExtensionDeps}.tmp" "\"${plugin_dep_name}\", ")
# Self + mandatory trailing null, because the number of RequiredLibraries differs between extensions.
file(APPEND "${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()
add_custom_command(OUTPUT ${exported_symbol_file}
COMMAND "${Python3_EXECUTABLE}" ${LLVM_MAIN_SRC_DIR}/utils/extract_symbols.py ${LLVM_EXTRACT_SYMBOLS_FLAGS} --mangling=${mangling} ${static_libs} -o ${exported_symbol_file}
WORKING_DIRECTORY ${LLVM_LIBRARY_OUTPUT_INTDIR}
DEPENDS ${LLVM_MAIN_SRC_DIR}/utils/extract_symbols.py ${static_libs}
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)
if (APPLE)
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-dwp
llvm-ranlib
llvm-lib
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
)
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 ${name})
endif()
set_target_properties(${name} PROPERTIES FOLDER "Tools")
endif()
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} ${ARGN})
if( LLVM_BUILD_EXAMPLES )
install(TARGETS ${name} RUNTIME DESTINATION "${LLVM_EXAMPLES_INSTALL_DIR}")
endif()
set_target_properties(${name} PROPERTIES FOLDER "Examples")
endmacro(add_llvm_example name)
macro(add_llvm_example_library name)
if( NOT LLVM_BUILD_EXAMPLES )
set(EXCLUDE_FROM_ALL ON)
add_llvm_library(${name} BUILDTREE_ONLY ${ARGN})
else()
add_llvm_library(${name} ${ARGN})
endif()
set_target_properties(${name} PROPERTIES FOLDER "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 ${ARGN})
set_target_properties(${name} PROPERTIES FOLDER "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})
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 "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 "Fuzzers")
elseif( ARG_DUMMY_MAIN )
add_llvm_executable(${name} ${ARG_DUMMY_MAIN} ${ARG_UNPARSED_ARGUMENTS})
set_target_properties(${name} PROPERTIES FOLDER "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)
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})
# 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)
set_property(TARGET ${test_name} APPEND_STRING PROPERTY
LINK_FLAGS " -Wl,--lto-O0")
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()
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})
get_target_property(test_suite_folder ${test_suite} FOLDER)
if (test_suite_folder)
set_property(TARGET ${test_name} PROPERTY FOLDER "${test_suite_folder}")
endif ()
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})
set_property(TARGET ${benchmark_name} PROPERTY FOLDER "Utils")
target_link_libraries(${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"
"from pathlib import Path\n"
"def path(p):\n"
" if not p: return ''\n"
" return str((Path(__file__).parent / p).resolve())\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 "") set(ARG_MAIN_CONFIG
"${INPUT_DIR}/lit.cfg")
foreach(c
${LLVM_TARGETS_TO_BUILD}) set(TARGETS_BUILT
"${TARGETS_BUILT} ${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_ASSERTIONS
) set(ENABLE_ASSERTIONS
"1") set(ENABLE_ASSERTIONS
"0")
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, \"${LLVM_TARGET_TRIPLE}\")\n"
)
# This is expanded to; config.target_triple = ""+config.target_triple+""
set(LLVM_TARGET_TRIPLE
"\"+config.target_triple+\"")
# Walk ARG_PATHS and collect the current value of the variables in there.
# list(APPEND) ignores empty elements exactly if the list is empty,
# so start the list with a dummy element and drop it, to make sure that
# even empty values make it into the values list.
set(ARG_PATH_VALUES
"dummy") list(APPEND ARG_PATH_VALUES
"${${path}}") list(REMOVE_AT ARG_PATH_VALUES 0
)
make_paths_relative(
ARG_PATH_VALUES_RELATIVE "${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 ${len_path_value_rels}))
message(SEND_ERROR "PATHS lengths got confused")
# Transform variables mentioned in ARG_PATHS to relative paths for
# the configure_file() call. Variables are copied to subscopeds by cmake,
# so this only modifies the local copy of the variables.
math(EXPR arg_path_limit
"${len_paths} - 1") list(GET ARG_PATHS
${i} val1
) list(GET ARG_PATH_VALUES_RELATIVE
${i} val2
)
if (EXISTS "${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})
foreach (_variableName
${_variableNames}) message(STATUS "${_variableName}=${${_variableName}}")
function(get_llvm_lit_path base_dir file_name
) cmake_parse_arguments(ARG "ALLOW_EXTERNAL" "" "" ${ARGN})
set (LLVM_EXTERNAL_LIT
"" CACHE STRING "Command used to spawn lit") if ("${LLVM_EXTERNAL_LIT}" STREQUAL "") set(LLVM_EXTERNAL_LIT
"${LLVM_DEFAULT_EXTERNAL_LIT}")
if (NOT "${LLVM_EXTERNAL_LIT}" STREQUAL "") if (EXISTS ${LLVM_EXTERNAL_LIT}) set(${file_name} ${LIT_FILE_NAME} PARENT_SCOPE) set(${base_dir} ${LIT_BASE_DIR} PARENT_SCOPE) elseif (NOT DEFINED CACHE{LLVM_EXTERNAL_LIT_MISSING_WARNED_ONCE}
) message(WARNING
"LLVM_EXTERNAL_LIT set to ${LLVM_EXTERNAL_LIT}, but the path does not exist.") set(LLVM_EXTERNAL_LIT_MISSING_WARNED_ONCE YES
CACHE INTERNAL "")
set(lit_file_name
"llvm-lit") if (CMAKE_HOST_WIN32
AND NOT CYGWIN
) # llvm-lit needs suffix.py for multiprocess to find a main module.
set(lit_file_name
"${lit_file_name}.py") 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} ${LLVM_LIT_BASE_DIR} PARENT_SCOPE)
# Allow individual projects to provide an override
if (NOT "${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}) set(LLVM_LIT_BASE_DIR
"")
# 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)
# A raw function to create a lit target. This is used to implement the testuite
# management functions.
cmake_parse_arguments(ARG "" "" "PARAMS;DEPENDS;ARGS" ${ARGN})
set(LIT_ARGS
"${ARG_ARGS} ${LLVM_LIT_ARGS}") if (NOT CMAKE_CFG_INTDIR
STREQUAL ".") list(APPEND LIT_ARGS --param build_mode=
${CMAKE_CFG_INTDIR})
# Get the path to the lit to *run* tests with. This can be overriden by
# the user by specifying -DLLVM_EXTERNAL_LIT=<path-to-lit.py>
get_llvm_lit_path(
lit_base_dir
lit_file_name
ALLOW_EXTERNAL
)
set(LIT_COMMAND
"${Python3_EXECUTABLE};${lit_base_dir}/${lit_file_name}") list(APPEND LIT_COMMAND
${LIT_ARGS}) list(APPEND LIT_COMMAND --param
${param}) if (ARG_UNPARSED_ARGUMENTS
) COMMAND ${LIT_COMMAND} ${ARG_UNPARSED_ARGUMENTS}
COMMENT "${comment}"
USES_TERMINAL
)
COMMAND ${CMAKE_COMMAND} -E echo "${target} does nothing, no tools built.")
message(STATUS "${target} does nothing.")
# Tests should be excluded from "Build Solution".
# Convert a target name like check-clang to a variable name like CLANG.
function(umbrella_lit_testsuite_var target outvar
) if (NOT target
MATCHES "^check-") message(FATAL_ERROR "umbrella lit suites must be check-*, not '${target}'") string(SUBSTRING "${target}" 6 -1 var
) string(REPLACE "-" "_" var
${var}) set(${outvar} "${var}" PARENT_SCOPE)
# Start recording all lit test suites for a combined 'check-foo' target.
# The recording continues until umbrella_lit_testsuite_end() creates the target.
function(umbrella_lit_testsuite_begin target
) umbrella_lit_testsuite_var(${target} name)
set_property(GLOBAL APPEND PROPERTY LLVM_LIT_UMBRELLAS
${name})
# Create a combined 'check-foo' target for a set of related test suites.
# It runs all suites added since the matching umbrella_lit_testsuite_end() call.
# Tests marked EXCLUDE_FROM_CHECK_ALL are not gathered.
function(umbrella_lit_testsuite_end target
) umbrella_lit_testsuite_var(${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_
${name}_LIT_EXTRA_ARGS
) # Additional test targets are not gathered, but may be set externally.
GLOBAL PROPERTY LLVM_${name}_ADDITIONAL_TEST_TARGETS)
add_lit_target(${target}
"Running ${name} regression tests"
${testsuites}
PARAMS ${params}
DEPENDS ${depends} ${additional_test_targets}
ARGS ${extra_args}
)
# 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
) # 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
${ARG_ARGS})
# Produce a specific suffixed check rule.
add_lit_target(${target} ${comment}
${ARG_UNPARSED_ARGUMENTS}
PARAMS ${ARG_PARAMS}
DEPENDS ${ARG_DEPENDS}
ARGS ${ARG_ARGS}
)
function(add_lit_testsuites project directory
) cmake_parse_arguments(ARG "EXCLUDE_FROM_CHECK_ALL" "FOLDER" "PARAMS;DEPENDS;ARGS" ${ARGN})
set(ARG_FOLDER
"Test Subdirectories")
# 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}/*
) if(NOT IS_DIRECTORY ${lit_suite}) continue()
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()
# Create a check- target for the directory.
string(REPLACE ${directory} "" name_slash
${lit_suite}) 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}
)
function(llvm_install_library_symlink name dest type
) cmake_parse_arguments(ARG "" "COMPONENT" "" ${ARGN})
if(EXISTS ${path}/LLVMInstallSymlink.cmake
) set(INSTALL_SYMLINK
${path}/LLVMInstallSymlink.cmake
)
set(component
${ARG_COMPONENT})
set(full_name
${CMAKE_${type}_LIBRARY_PREFIX}
${name}${CMAKE_${type}_LIBRARY_SUFFIX}
) set(full_dest
${CMAKE_${type}_LIBRARY_PREFIX}
${dest}${CMAKE_${type}_LIBRARY_SUFFIX}
)
set(output_dir lib
${LLVM_LIBDIR_SUFFIX}) if(WIN32
AND "${type}" STREQUAL "SHARED") set(output_dir
"${CMAKE_INSTALL_BINDIR}")
CODE "install_symlink(\"${full_name}\" \"${full_dest}\" \"${output_dir}\")"
COMPONENT ${component})
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)
)
cmake_parse_arguments(ARG "ALWAYS_GENERATE" "COMPONENT" "" ${ARGN})
if(EXISTS ${path}/LLVMInstallSymlink.cmake
) set(INSTALL_SYMLINK
${path}/LLVMInstallSymlink.cmake
)
set(component
${ARG_COMPONENT})
set(full_name
${name}${CMAKE_EXECUTABLE_SUFFIX}) set(full_dest
${dest}${CMAKE_EXECUTABLE_SUFFIX}) if (${dest} STREQUAL "llvm-driver") set(full_dest llvm
${CMAKE_EXECUTABLE_SUFFIX})
set(output_dir
"${${project}_TOOLS_INSTALL_DIR}")
CODE "install_symlink(\"${full_name}\" \"${full_dest}\" \"${output_dir}\")"
COMPONENT ${component})
if (NOT LLVM_ENABLE_IDE
AND NOT ARG_ALWAYS_GENERATE
) add_llvm_install_targets(install-${name}
DEPENDS ${name} ${dest}
COMPONENT ${name}
SYMLINK ${dest})
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} ${link_name}) set(dest_binary
"$<TARGET_FILE:${target}>")
# This got a bit gross... For multi-configuration generators the target
# properties return the resolved value of the string, not the build system
# expression. To reconstruct the platform-agnostic path we have to do some
# magic. First we grab one of the types, and a type-specific path. Then from
# the type-specific path we find the last occurrence of the type in the path,
# and replace it with CMAKE_CFG_INTDIR. This allows the build step to be type
# agnostic again.
# If you're not overriding the OUTPUT_DIR, we can make the link relative in
# the same directory.
set(dest_binary
"$<TARGET_FILE_NAME:${target}>") if(CMAKE_CONFIGURATION_TYPES
) list(GET CMAKE_CONFIGURATION_TYPES 0 first_type
) string(TOUPPER ${first_type} first_type_upper
) set(first_type_suffix _
${first_type_upper}) if(${target_type} STREQUAL "STATIC_LIBRARY") elseif(UNIX
AND ${target_type} STREQUAL "SHARED_LIBRARY") if(CMAKE_CONFIGURATION_TYPES
) string(FIND "${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})
set(LLVM_LINK_OR_COPY create_symlink
) set(LLVM_LINK_OR_COPY copy
)
set(output_path
"${ARG_OUTPUT_DIR}/${link_name}${CMAKE_EXECUTABLE_SUFFIX}")
set(target_name
${link_name}) set(target_name
${link_name}-link
)
ADDITIONAL_MAKE_CLEAN_FILES ${dest_binary})
COMMAND ${CMAKE_COMMAND} -E ${LLVM_LINK_OR_COPY} "${dest_binary}" "${output_path}")
COMMAND ${CMAKE_COMMAND} -E ${LLVM_LINK_OR_COPY} "${dest_binary}" "${output_path}"
DEPENDS ${target})
# TODO: Make use of generator expressions below once CMake 3.19 or higher is the minimum supported version.
if (NOT target_excluded_from_all
) set(should_build_all ALL
) add_custom_target(${target_name} ${should_build_all} DEPENDS ${target} ${output_path})
# Make sure both the link and target are toolchain tools
if (${link_name} IN_LIST LLVM_TOOLCHAIN_TOOLS
AND ${target} IN_LIST LLVM_TOOLCHAIN_TOOLS
) set(TOOL_IS_TOOLCHAIN
ON)
if ((TOOL_IS_TOOLCHAIN
OR NOT LLVM_INSTALL_TOOLCHAIN_ONLY
) AND LLVM_BUILD_TOOLS
) llvm_install_symlink("${project}" ${link_name} ${target})
function(add_llvm_tool_symlink link_name target
) llvm_add_tool_symlink(LLVM ${ARGV})
function(llvm_externalize_debuginfo name
) if(NOT LLVM_EXTERNALIZE_DEBUGINFO
)
if(NOT LLVM_EXTERNALIZE_DEBUGINFO_SKIP_STRIP
) set(CMAKE_STRIP xcrun strip
) set(strip_command
COMMAND ${CMAKE_STRIP} -S -x $<TARGET_FILE:
${name}>
) set(strip_command
COMMAND ${CMAKE_STRIP} -g -x $<TARGET_FILE:
${name}>
)
if(LLVM_EXTERNALIZE_DEBUGINFO_EXTENSION
) set(file_ext
${LLVM_EXTERNALIZE_DEBUGINFO_EXTENSION})
set(output_name
"$<TARGET_FILE_NAME:${name}>.${file_ext}")
if(LLVM_EXTERNALIZE_DEBUGINFO_OUTPUT_DIR
) set(output_path
"-o=${LLVM_EXTERNALIZE_DEBUGINFO_OUTPUT_DIR}/${output_name}") set(output_path
"-o=${output_name}")
if(CMAKE_CXX_FLAGS
MATCHES "-flto" OR CMAKE_CXX_FLAGS_${uppercase_CMAKE_BUILD_TYPE} MATCHES "-flto")
set(lto_object
${CMAKE_CURRENT_BINARY_DIR}/
${CMAKE_CFG_INTDIR}/
${name}-lto.o
) LINK_FLAGS " -Wl,-object_path_lto,${lto_object}")
set(CMAKE_DSYMUTIL xcrun dsymutil
) COMMAND ${CMAKE_DSYMUTIL} ${output_path} $<TARGET_FILE:${name}>
${strip_command}
)
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}>
)
# Usage: llvm_codesign(name [FORCE] [ENTITLEMENTS file] [BUNDLE_PATH path])
cmake_parse_arguments(ARG "FORCE" "ENTITLEMENTS;BUNDLE_PATH" "" ${ARGN})
if(NOT LLVM_CODESIGNING_IDENTITY
)
if(CMAKE_GENERATOR
STREQUAL "Xcode") XCODE_ATTRIBUTE_CODE_SIGN_IDENTITY ${LLVM_CODESIGNING_IDENTITY}
)
if(DEFINED ARG_ENTITLEMENTS
) XCODE_ATTRIBUTE_CODE_SIGN_ENTITLEMENTS ${ARG_ENTITLEMENTS}
)
elseif(APPLE
AND CMAKE_HOST_SYSTEM_NAME
MATCHES Darwin
) set(CMAKE_CODESIGN xcrun codesign
) if(NOT CMAKE_CODESIGN_ALLOCATE
) COMMAND xcrun -f codesign_allocate
OUTPUT_STRIP_TRAILING_WHITESPACE
OUTPUT_VARIABLE CMAKE_CODESIGN_ALLOCATE
)
if(DEFINED ARG_ENTITLEMENTS
) set(pass_entitlements --entitlements
${ARG_ENTITLEMENTS})
set(ARG_BUNDLE_PATH $<TARGET_FILE:
${name}>
)
# 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.
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}
)
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
${LLVM_LIBRARY_DIR})
set(_install_name_dir INSTALL_NAME_DIR
"@rpath") set(_install_rpath
"@loader_path/../lib${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}" ${extra_libdir}) set(_build_rpath
"\$ORIGIN/../lib${LLVM_LIBDIR_SUFFIX}" ${extra_libdir}) set(_install_rpath
"\$ORIGIN/../lib${LLVM_LIBDIR_SUFFIX}") if(${CMAKE_SYSTEM_NAME} MATCHES "(FreeBSD|DragonFly)") LINK_FLAGS " -Wl,-z,origin ")
# $ORIGIN is not interpreted at link time by ld.bfd
LINK_FLAGS " -Wl,-rpath-link,${LLVM_LIBRARY_OUTPUT_INTDIR} ")
# 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) set_property(TARGET ${name} APPEND PROPERTY BUILD_RPATH
"${_build_rpath}")
INSTALL_RPATH "${_install_rpath}"
${_install_name_dir})
function(setup_dependency_debugging name
) if(NOT LLVM_DEPENDENCY_DEBUGGING
)
if("intrinsics_gen" IN_LIST ARGN
)
set(deny_attributes_inc
"(deny file* (literal \"${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}'")
# 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
) WORKING_DIRECTORY ${path}
RESULT_VARIABLE git_result
OUTPUT_VARIABLE git_output
ERROR_QUIET)
string(STRIP "${git_output}" git_output
) # Some branchless cases (e.g. 'repo') may not yet have .git/logs/HEAD
if (NOT EXISTS "${git_dir}/logs/HEAD") WORKING_DIRECTORY "${git_dir}/logs"
RESULT_VARIABLE touch_head_result
ERROR_QUIET)
if (NOT touch_head_result
EQUAL 0
) set(${out_var} "" PARENT_SCOPE) set(${out_var} "${git_dir}/logs/HEAD" PARENT_SCOPE)
function(setup_host_tool tool_name setting_name exe_var_name target_var_name
) set(${setting_name}_DEFAULT
"${tool_name}")
if(EXISTS "${LLVM_NATIVE_TOOL_DIR}/${tool_name}${LLVM_HOST_EXECUTABLE_SUFFIX}") set(${setting_name}_DEFAULT
"${LLVM_NATIVE_TOOL_DIR}/${tool_name}${LLVM_HOST_EXECUTABLE_SUFFIX}")
set(${setting_name} "${${setting_name}_DEFAULT}" CACHE STRING "Host ${tool_name} executable. Saves building if cross-compiling.")
if(NOT ${setting_name} STREQUAL "${tool_name}") set(exe_name
${${setting_name}}
) set(target_name
${${setting_name}}
) build_native_tool(${tool_name} exe_name DEPENDS ${tool_name})
set(target_name
${exe_name}) set(exe_name $<TARGET_FILE:
${tool_name}>
) set(target_name
${tool_name}) set(${exe_var_name} "${exe_name}" CACHE STRING "") set(${target_var_name} "${target_name}" CACHE STRING "")