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a46434135a
llvm-mirror/cmake/modules/AddLLVM.cmake
Mircea Trofin a46434135a [llvm] Added support for stand-alone cmake object libraries. 
Summary:
Currently, add_llvm_library would create an OBJECT library alongside
of a STATIC / SHARED library, but losing the link interface (its
elements would become dependencies instead). To support scenarios
where linking an object library also brings in its usage
requirements, this patch adds support for 'stand-alone' OBJECT
libraries - i.e. without an accompanying SHARED/STATIC library, and
maintaining the link interface defined by the user.

The support is via a new option, OBJECT_ONLY, to avoid breaking changes
- since just specifying "OBJECT" would currently imply also STATIC or
SHARED, depending on BUILD_SHARED_LIBS.

This is useful for cases where, for example, we want to build a part
of a component separately. Using a STATIC target would incur the risk
that symbols not referenced in the consumer would be dropped (which may
be undesirable).

The current application is the ML part of Analysis. It should be part
of the Analysis component, so it may reference other analyses; and (in
upcoming changes) it has dependencies on optional libraries.

Reviewers: karies, davidxl

Subscribers: mgorny, hiraditya, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D81447
2020-06-15 12:01:43 -07:00

2159 lines
80 KiB
CMake
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include(LLVMProcessSources)
include(LLVM-Config)
include(DetermineGCCCompatible)
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(NOT LLVM_ENABLE_UNWIND_TABLES)
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")
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 ${native_export_file}
COMMAND echo "LLVM_${LLVM_VERSION_MAJOR} {" > ${native_export_file}
COMMAND grep -q "[[:alnum:]]" ${export_file} && echo " global:" >> ${native_export_file} || :
COMMAND sed -e "s/$/;/" -e "s/^/ /" < ${export_file} >> ${native_export_file}
COMMAND echo " local: *;" >> ${native_export_file}
COMMAND echo "};" >> ${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}/${native_export_file}\"")
endif()
else()
set(native_export_file "${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}/${native_export_file}")
if(MSVC)
set(export_file_linker_flag "/DEF:\"${export_file_linker_flag}\"")
endif()
set_property(TARGET ${target_name} APPEND_STRING PROPERTY
LINK_FLAGS " ${export_file_linker_flag}")
endif()
add_custom_target(${target_name}_exports DEPENDS ${native_export_file})
set_target_properties(${target_name}_exports PROPERTIES FOLDER "Misc")
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 ${LLVM_COMMON_DEPENDS} PARENT_SCOPE)
endfunction(add_llvm_symbol_exports)
if (NOT DEFINED LLVM_LINKER_DETECTED)
if(APPLE)
execute_process(
COMMAND "${CMAKE_LINKER}" -v
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")
else()
set(LLVM_LINKER_DETECTED NO CACHE INTERNAL "")
message(STATUS "Linker detection: unknown")
endif()
elseif(NOT WIN32)
# Detect what linker we have here
if( LLVM_USE_LINKER )
set(command ${CMAKE_C_COMPILER} -fuse-ld=${LLVM_USE_LINKER} -Wl,--version)
else()
separate_arguments(flags UNIX_COMMAND "${CMAKE_EXE_LINKER_FLAGS}")
set(command ${CMAKE_C_COMPILER} ${flags} -Wl,--version)
endif()
execute_process(
COMMAND ${command}
OUTPUT_VARIABLE stdout
ERROR_VARIABLE stderr
)
if("${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")
else()
set(LLVM_LINKER_DETECTED NO CACHE INTERNAL "")
message(STATUS "Linker detection: unknown")
endif()
endif()
endif()
function(add_link_opts target_name)
# 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")
# Pass -O3 to the linker. This enabled different optimizations on different
# linkers.
if(NOT (${CMAKE_SYSTEM_NAME} MATCHES "Darwin|SunOS|AIX" OR WIN32))
set_property(TARGET ${target_name} APPEND_STRING PROPERTY
LINK_FLAGS " -Wl,-O3")
endif()
if(LLVM_LINKER_IS_GOLD)
# With gold gc-sections is always safe.
set_property(TARGET ${target_name} APPEND_STRING PROPERTY
LINK_FLAGS " -Wl,--gc-sections")
# Note that there is a bug with -Wl,--icf=safe so it is not safe
# to enable. See https://sourceware.org/bugzilla/show_bug.cgi?id=17704.
endif()
if(NOT LLVM_NO_DEAD_STRIP)
if(${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")
# Support for ld -z discard-unused=sections was only added in
# Solaris 11.4.
include(CheckLinkerFlag)
check_linker_flag("-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 WIN32 AND NOT LLVM_LINKER_IS_GOLD AND
NOT ${CMAKE_SYSTEM_NAME} MATCHES "OpenBSD|AIX")
# Object files are compiled with -ffunction-data-sections.
# Versions of bfd ld < 2.23.1 have a bug in --gc-sections that breaks
# tools that use plugins. Always pass --gc-sections once we require
# a newer linker.
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(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)
set(ARG_VERSION_MAJOR ${LLVM_VERSION_MAJOR})
endif()
if (NOT DEFINED ARG_VERSION_MINOR)
set(ARG_VERSION_MINOR ${LLVM_VERSION_MINOR})
endif()
if (NOT DEFINED ARG_VERSION_PATCHLEVEL)
set(ARG_VERSION_PATCHLEVEL ${LLVM_VERSION_PATCH})
endif()
if (NOT DEFINED ARG_VERSION_STRING)
set(ARG_VERSION_STRING ${PACKAGE_VERSION})
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_ONLY
# builds an OBJECT target, irrespective of BUILD_SHARED_LIBS.
# Cannot be mixed with SHARED, STATIC, or OBJECT.
# OBJECT
# Also create an OBJECT library target. Default if STATIC && SHARED.
# The OBJECT target will be named obj.${name} and will have an empty link
# interface.
# 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;OBJECT_ONLY;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} ${ARG_ADDITIONAL_HEADERS})
endif()
if ((ARG_STATIC OR ARG_SHARED OR ARG_OBJECT) AND ARG_OBJECT_ONLY)
message(ERROR "OBJECT_ONLY should appear alone, without STATIC|SHARED|OBJECT")
endif()
if(ARG_MODULE)
if(ARG_SHARED OR ARG_STATIC)
message(WARNING "MODULE with SHARED|STATIC doesn't make sense.")
endif()
# Plugins that link against a tool are allowed even when plugins in general are not
if(NOT LLVM_ENABLE_PLUGINS AND NOT (ARG_PLUGIN_TOOL AND LLVM_EXPORT_SYMBOLS_FOR_PLUGINS))
message(STATUS "${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 AND NOT ARG_OBJECT_ONLY)
set(ARG_STATIC TRUE)
endif()
endif()
# Generate the extra 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 ${obj_name})
set_target_properties(${obj_name} PROPERTIES FOLDER "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} ${link_lib})
endif()
endforeach()
endif()
endif()
if(ARG_SHARED AND ARG_STATIC)
# static
set(name_static "${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}
)
# 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 ${ALL_FILES})
elseif(ARG_STATIC)
add_library(${name} STATIC ${ALL_FILES})
else()
add_library(${name} OBJECT ${ALL_FILES})
endif()
if(ARG_COMPONENT_LIB)
set_target_properties(${name} PROPERTIES LLVM_COMPONENT TRUE)
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 ${LLVM_PLUGIN_EXT}
)
endif()
if(ARG_SHARED)
if(WIN32)
set_target_properties(${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 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})
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 AND UNIX)
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 ${library_name})
llvm_install_library_symlink(${api_name} ${library_name} SHARED
COMPONENT ${name}
ALWAYS_GENERATE)
llvm_install_library_symlink(${output_name} ${library_name} SHARED
COMPONENT ${name}
ALWAYS_GENERATE)
endif()
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()
llvm_map_components_to_libnames(llvm_libs
${ARG_LINK_COMPONENTS}
${LLVM_LINK_COMPONENTS}
)
endif()
else()
# Components have not been defined explicitly in CMake, so add the
# dependency information for this library as defined by LLVMBuild.
#
# It would be nice to verify that we have the dependencies for this library
# name, but using get_property(... SET) doesn't suffice to determine if a
# property has been set to an empty value.
get_property(lib_deps GLOBAL PROPERTY LLVMBUILD_LIB_DEPS_${name})
endif()
if(ARG_SHARED)
# We can use PRIVATE since SO knows its dependent libs.
set(libtype PRIVATE)
else()
set(libtype PUBLIC)
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} ${LLVM_COMMON_DEPENDS})
endforeach()
endif()
if(ARG_SHARED OR ARG_MODULE)
llvm_externalize_debuginfo(${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()
# Add a target which is logically and deployment-wise part of another one
# (owner), but - perhaps because it has optional build dependencies - may be
# built separately.
# The owner consumes it via target_link_libraries (or equivalent syntax).
#
# PUBLIC creates an OBJECT library, so linking it in the owner translates to
# linking the object files in this target as if they were built by the owner.
#
# PRIVATE creates a STATIC library, so linking it would drop objects that are
# not referenced.
macro (add_llvm_internal_library name)
cmake_parse_arguments(ARG "PUBLIC;PRIVATE" "" "" ${ARGN})
if (ARG_PUBLIC)
add_llvm_library(${name} OBJECT_ONLY DISABLE_LLVM_LINK_LLVM_DYLIB
${ARG_UNPARSED_ARGUMENTS})
else()
add_llvm_library(${name} STATIC DISABLE_LLVM_LINK_LLVM_DYLIB
${ARG_UNPARSED_ARGUMENTS})
endif()
endmacro()
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 ${dependency})
endif()
endforeach()
add_custom_target(${target}
DEPENDS ${file_dependencies}
COMMAND "${CMAKE_COMMAND}"
${component_option}
${prefix_option}
-P "${CMAKE_BINARY_DIR}/cmake_install.cmake"
USES_TERMINAL)
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)
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-${ARG_SYMLINK}-stripped)
endif()
endfunction()
function(add_llvm_component_library name)
add_llvm_library(${name} COMPONENT_LIB ${ARGN})
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 ${name})
else()
if (NOT LLVM_INSTALL_TOOLCHAIN_ONLY OR ARG_INSTALL_WITH_TOOLCHAIN)
set(export_to_llvmexports)
if(${name} IN_LIST LLVM_DISTRIBUTION_COMPONENTS OR
(in_llvm_libs AND "llvm-libraries" IN_LIST LLVM_DISTRIBUTION_COMPONENTS) OR
NOT LLVM_DISTRIBUTION_COMPONENTS)
set(export_to_llvmexports EXPORT LLVMExports)
set_property(GLOBAL PROPERTY LLVM_HAS_EXPORTS True)
endif()
install(TARGETS ${name}
${export_to_llvmexports}
LIBRARY DESTINATION lib${LLVM_LIBDIR_SUFFIX} COMPONENT ${name}
ARCHIVE DESTINATION lib${LLVM_LIBDIR_SUFFIX} COMPONENT ${name}
RUNTIME DESTINATION bin 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 ${name})
endif()
if (ARG_MODULE)
set_target_properties(${name} PROPERTIES FOLDER "Loadable modules")
else()
set_target_properties(${name} PROPERTIES FOLDER "Libraries")
endif()
endmacro(add_llvm_library name)
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"
"DEPENDS"
${ARGN})
llvm_process_sources( ALL_FILES ${ARG_UNPARSED_ARGUMENTS} )
list(APPEND LLVM_COMMON_DEPENDS ${ARG_DEPENDS})
# Generate objlib
if(LLVM_ENABLE_OBJLIB)
# Generate an obj library for both targets.
set(obj_name "obj.${name}")
add_library(${obj_name} OBJECT EXCLUDE_FROM_ALL
${ALL_FILES}
)
llvm_update_compile_flags(${obj_name})
set(ALL_FILES "$<TARGET_OBJECTS:${obj_name}>")
set_target_properties(${obj_name} PROPERTIES FOLDER "Object Libraries")
endif()
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} ${ALL_FILES})
endif()
setup_dependency_debugging(${name} ${LLVM_COMMON_DEPENDS})
if(NOT ARG_NO_INSTALL_RPATH)
llvm_setup_rpath(${name})
elseif (LLVM_LOCAL_RPATH)
set_target_properties(${name} PROPERTIES
BUILD_WITH_INSTALL_RPATH On
INSTALL_RPATH "${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} ${LLVM_EXPORTED_SYMBOL_FILE} )
endif(LLVM_EXPORTED_SYMBOL_FILE)
if (LLVM_LINK_LLVM_DYLIB AND NOT ARG_DISABLE_LLVM_LINK_LLVM_DYLIB)
set(USE_SHARED USE_SHARED)
endif()
set(EXCLUDE_FROM_ALL OFF)
set_output_directory(${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} ${LLVM_COMMON_DEPENDS} )
endif( LLVM_COMMON_DEPENDS )
if(NOT ARG_IGNORE_EXTERNALIZE_DEBUGINFO)
llvm_externalize_debuginfo(${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 ${LLVM_PTHREAD_LIB})
endif()
llvm_codesign(${name} ENTITLEMENTS ${ARG_ENTITLEMENTS} BUNDLE_PATH ${ARG_BUNDLE_PATH})
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()
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 ${llvm_extension})
endforeach()
# Eventually generate the extension headers, and store config to a cmake file
# for usage in third-party configuration.
if(ARG_GEN_CONFIG)
## Part 1: Extension header to be included whenever we need extension
# processing.
set(LLVM_INSTALL_PACKAGE_DIR lib${LLVM_LIBDIR_SUFFIX}/cmake/llvm)
set(llvm_cmake_builddir "${LLVM_BINARY_DIR}/${LLVM_INSTALL_PACKAGE_DIR}")
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" "{{\"${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})
list(FIND link_libs ${transitive_lib} idx)
if(TARGET ${transitive_lib} AND idx EQUAL -1)
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}" ${LLVM_MAIN_SRC_DIR}/utils/extract_symbols.py --mangling=${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-ranlib
llvm-lib
llvm-nm
llvm-objcopy
llvm-objdump
llvm-rc
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
size
strings
strip
)
endif()
macro(add_llvm_tool name)
if( NOT LLVM_BUILD_TOOLS )
set(EXCLUDE_FROM_ALL ON)
endif()
add_llvm_executable(${name} ${ARGN})
if ( ${name} IN_LIST LLVM_TOOLCHAIN_TOOLS OR NOT LLVM_INSTALL_TOOLCHAIN_ONLY)
if( LLVM_BUILD_TOOLS )
set(export_to_llvmexports)
if(${name} IN_LIST LLVM_DISTRIBUTION_COMPONENTS OR
NOT LLVM_DISTRIBUTION_COMPONENTS)
set(export_to_llvmexports EXPORT LLVMExports)
set_property(GLOBAL PROPERTY LLVM_HAS_EXPORTS True)
endif()
install(TARGETS ${name}
${export_to_llvmexports}
RUNTIME DESTINATION ${LLVM_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")
endmacro(add_llvm_tool name)
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 ${name} RUNTIME DESTINATION examples)
endif()
set_target_properties(${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 (NOT LLVM_INSTALL_TOOLCHAIN_ONLY)
if (LLVM_INSTALL_UTILS AND LLVM_BUILD_UTILS)
set(export_to_llvmexports)
if (${name} IN_LIST LLVM_DISTRIBUTION_COMPONENTS OR
NOT LLVM_DISTRIBUTION_COMPONENTS)
set(export_to_llvmexports EXPORT LLVMExports)
set_property(GLOBAL PROPERTY LLVM_HAS_EXPORTS True)
endif()
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)
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}" ${ARGN})
endforeach()
endfunction(llvm_add_implicit_projects)
function(add_llvm_implicit_projects)
llvm_add_implicit_projects(LLVM)
endfunction(add_llvm_implicit_projects)
# Generic support for adding a unittest.
function(add_unittest test_suite test_name)
if( NOT LLVM_BUILD_TESTS )
set(EXCLUDE_FROM_ALL ON)
endif()
# Our current version of gtest does not properly recognize C++11 support
# with MSVC, so it falls back to tr1 / experimental classes. Since LLVM
# itself requires C++11, we can safely force it on unconditionally so that
# we don't have to fight with the buggy gtest check.
add_definitions(-DGTEST_LANG_CXX11=1)
add_definitions(-DGTEST_HAS_TR1_TUPLE=0)
include_directories(${LLVM_MAIN_SRC_DIR}/utils/unittest/googletest/include)
include_directories(${LLVM_MAIN_SRC_DIR}/utils/unittest/googlemock/include)
if (NOT LLVM_ENABLE_THREADS)
list(APPEND LLVM_COMPILE_DEFINITIONS GTEST_HAS_PTHREAD=0)
endif ()
if (SUPPORTS_VARIADIC_MACROS_FLAG)
list(APPEND LLVM_COMPILE_FLAGS "-Wno-variadic-macros")
endif ()
# Some parts of gtest rely on this GNU extension, don't warn on it.
if(SUPPORTS_GNU_ZERO_VARIADIC_MACRO_ARGUMENTS_FLAG)
list(APPEND LLVM_COMPILE_FLAGS "-Wno-gnu-zero-variadic-macro-arguments")
endif()
set(LLVM_REQUIRES_RTTI OFF)
list(APPEND LLVM_LINK_COMPONENTS Support) # gtest needs it for raw_ostream
add_llvm_executable(${test_name} IGNORE_EXTERNALIZE_DEBUGINFO NO_INSTALL_RPATH ${ARGN})
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 gtest_main gtest ${LLVM_PTHREAD_LIB})
add_dependencies(${test_suite} ${test_name})
get_target_property(test_suite_folder ${test_suite} FOLDER)
if (NOT ${test_suite_folder} STREQUAL "NOTFOUND")
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
sys.stdout.write(';'.join(relpath(p) for p in sys.argv[2].split(';')))"
${basedir}
${pathlist_escaped}
OUTPUT_VARIABLE pathlist_relative)
set(${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"
"def path(p):\n"
" if not p: return ''\n"
" return os.path.join(os.path.dirname(os.path.abspath(__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;OUTPUT_MAPPING;PATHS" ${ARGN})
if ("${ARG_MAIN_CONFIG}" STREQUAL "")
get_filename_component(INPUT_DIR ${site_in} DIRECTORY)
set(ARG_MAIN_CONFIG "${INPUT_DIR}/lit.cfg")
endif()
if ("${ARG_OUTPUT_MAPPING}" STREQUAL "")
set(ARG_OUTPUT_MAPPING "${site_out}")
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()
# They below might not be the build tree but 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}")
# SHLIBDIR points the build tree.
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 AND NOT MSVC_IDE)
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, \"${TARGET_TRIPLE}\")\n"
)
# This is expanded to; config.target_triple = ""+config.target_triple+""
set(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()
else()
message(WARNING "LLVM_EXTERNAL_LIT set to ${LLVM_EXTERNAL_LIT}, but the path does not exist.")
endif()
endif()
endif()
set(lit_file_name "llvm-lit")
if (CMAKE_HOST_WIN32 AND NOT CYGWIN)
# llvm-lit needs suffix.py for multiprocess to find a main module.
set(lit_file_name "${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 "${target} does nothing.")
endif()
if (ARG_DEPENDS)
add_dependencies(${target} ${ARG_DEPENDS})
endif()
# Tests should be excluded from "Build Solution".
set_target_properties(${target} PROPERTIES EXCLUDE_FROM_DEFAULT_BUILD ON)
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)
# Register the testsuites, params and depends for the global check rule.
set_property(GLOBAL APPEND PROPERTY LLVM_LIT_TESTSUITES ${ARG_UNPARSED_ARGUMENTS})
set_property(GLOBAL APPEND PROPERTY LLVM_LIT_PARAMS ${ARG_PARAMS})
set_property(GLOBAL APPEND PROPERTY LLVM_LIT_DEPENDS ${ARG_DEPENDS})
set_property(GLOBAL APPEND PROPERTY LLVM_LIT_EXTRA_ARGS ${ARG_ARGS})
endif()
# Produce a specific suffixed check rule.
add_lit_target(${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" "" "PARAMS;DEPENDS;ARGS" ${ARGN})
# 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}
)
endif()
endforeach()
endif()
endfunction()
function(llvm_install_library_symlink name dest type)
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()
set(component ${ARG_COMPONENT})
if(NOT component)
set(component ${name})
endif()
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 bin)
endif()
install(SCRIPT ${INSTALL_SYMLINK}
CODE "install_symlink(${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})
endif()
endfunction()
function(llvm_install_symlink name dest)
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})
install(SCRIPT ${INSTALL_SYMLINK}
CODE "install_symlink(${full_name} ${full_dest} ${LLVM_TOOLS_INSTALL_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})
endif()
endfunction()
function(add_llvm_tool_symlink link_name target)
cmake_parse_arguments(ARG "ALWAYS_GENERATE" "OUTPUT_DIR" "" ${ARGN})
set(dest_binary "$<TARGET_FILE:${target}>")
# This got a bit gross... For multi-configuration generators the target
# properties return the resolved value of the string, not the build system
# expression. To reconstruct the platform-agnostic path we have to do some
# magic. First we grab one of the types, and a type-specific path. Then from
# the type-specific path we find the last occurrence of the type in the path,
# and replace it with CMAKE_CFG_INTDIR. This allows the build step to be type
# agnostic again.
if(NOT ARG_OUTPUT_DIR)
# If you're not overriding the OUTPUT_DIR, we can make the link relative in
# the same directory.
if(CMAKE_HOST_UNIX)
set(dest_binary "$<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(CMAKE_HOST_UNIX)
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 ${target})
add_custom_target(${target_name} ALL DEPENDS ${target} ${output_path})
set_target_properties(${target_name} PROPERTIES FOLDER Tools)
# Make sure both the link and target are toolchain tools
if (${link_name} IN_LIST LLVM_TOOLCHAIN_TOOLS AND ${target} IN_LIST LLVM_TOOLCHAIN_TOOLS)
set(TOOL_IS_TOOLCHAIN ON)
endif()
if ((TOOL_IS_TOOLCHAIN OR NOT LLVM_INSTALL_TOOLCHAIN_ONLY) AND LLVM_BUILD_TOOLS)
llvm_install_symlink(${link_name} ${target})
endif()
endif()
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} -Sxl $<TARGET_FILE:${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()
if(ARG_FORCE)
set(force_flag "-f")
endif()
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}" ${extra_libdir})
elseif(UNIX)
set(_install_rpath "\$ORIGIN/../lib${LLVM_LIBDIR_SUFFIX}" ${extra_libdir})
if(${CMAKE_SYSTEM_NAME} MATCHES "(FreeBSD|DragonFly)")
set_property(TARGET ${name} APPEND_STRING PROPERTY
LINK_FLAGS " -Wl,-z,origin ")
endif()
if(LLVM_LINKER_IS_GNULD)
# $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()
set_target_properties(${name} PROPERTIES
BUILD_WITH_INSTALL_RPATH On
INSTALL_RPATH "${_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 ${sandbox_command})
endfunction()
function(find_first_existing_vc_file path out_var)
if(NOT EXISTS "${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)
return()
endif()
endif()
set(${out_var} "${git_dir}/logs/HEAD" PARENT_SCOPE)
endif()
endif()
endfunction()
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