AddCompilerRT.cmake [plain text]
include(AddLLVM)
include(ExternalProject)
include(LLVMParseArguments)
include(CompilerRTUtils)
# Tries to add "object library" target for a given architecture
# with name "<name>.<arch>" if architecture can be targeted.
# add_compiler_rt_object_library(<name> <arch>
# SOURCES <source files>
# CFLAGS <compile flags>
# DEFS <compile definitions>)
macro(add_compiler_rt_object_library name arch)
if(CAN_TARGET_${arch})
parse_arguments(LIB "SOURCES;CFLAGS;DEFS" "" ${ARGN})
add_library(${name}.${arch} OBJECT ${LIB_SOURCES})
set_target_compile_flags(${name}.${arch}
${CMAKE_CXX_FLAGS} ${TARGET_${arch}_CFLAGS} ${LIB_CFLAGS})
set_property(TARGET ${name}.${arch} APPEND PROPERTY
COMPILE_DEFINITIONS ${LIB_DEFS})
else()
message(FATAL_ERROR "Archtecture ${arch} can't be targeted")
endif()
endmacro()
# Same as above, but adds universal osx library for either OSX or iOS simulator
# with name "<name>.<os>" targeting multiple architectures.
# add_compiler_rt_darwin_object_library(<name> <os> ARCH <architectures>
# SOURCES <source files>
# CFLAGS <compile flags>
# DEFS <compile definitions>)
macro(add_compiler_rt_darwin_object_library name os)
parse_arguments(LIB "ARCH;SOURCES;CFLAGS;DEFS" "" ${ARGN})
set(libname "${name}.${os}")
add_library(${libname} OBJECT ${LIB_SOURCES})
set_target_compile_flags(${libname} ${LIB_CFLAGS} ${DARWIN_${os}_CFLAGS})
set_target_properties(${libname} PROPERTIES OSX_ARCHITECTURES "${LIB_ARCH}")
set_property(TARGET ${libname} APPEND PROPERTY
COMPILE_DEFINITIONS ${LIB_DEFS})
endmacro()
# Adds static or shared runtime for a given architecture and puts it in the
# proper directory in the build and install trees.
# add_compiler_rt_runtime(<name> <arch> {STATIC,SHARED}
# SOURCES <source files>
# CFLAGS <compile flags>
# DEFS <compile definitions>)
macro(add_compiler_rt_runtime name arch type)
if(CAN_TARGET_${arch})
parse_arguments(LIB "SOURCES;CFLAGS;DEFS;OUTPUT_NAME" "" ${ARGN})
add_library(${name} ${type} ${LIB_SOURCES})
# Setup compile flags and definitions.
set_target_compile_flags(${name}
${TARGET_${arch}_CFLAGS} ${LIB_CFLAGS})
set_target_link_flags(${name}
${TARGET_${arch}_CFLAGS} ${LIB_CFLAGS})
set_property(TARGET ${name} APPEND PROPERTY
COMPILE_DEFINITIONS ${LIB_DEFS})
# Setup correct output directory in the build tree.
set_target_properties(${name} PROPERTIES
ARCHIVE_OUTPUT_DIRECTORY ${COMPILER_RT_LIBRARY_OUTPUT_DIR}
LIBRARY_OUTPUT_DIRECTORY ${COMPILER_RT_LIBRARY_OUTPUT_DIR})
if (LIB_OUTPUT_NAME)
set_target_properties(${name} PROPERTIES
OUTPUT_NAME ${LIB_OUTPUT_NAME})
endif()
# Add installation command.
install(TARGETS ${name}
ARCHIVE DESTINATION ${COMPILER_RT_LIBRARY_INSTALL_DIR}
LIBRARY DESTINATION ${COMPILER_RT_LIBRARY_INSTALL_DIR})
else()
message(FATAL_ERROR "Archtecture ${arch} can't be targeted")
endif()
endmacro()
# Same as add_compiler_rt_runtime(... STATIC), but creates a universal library
# for several architectures.
# add_compiler_rt_osx_static_runtime(<name> ARCH <architectures>
# SOURCES <source files>
# CFLAGS <compile flags>
# DEFS <compile definitions>)
macro(add_compiler_rt_osx_static_runtime name)
parse_arguments(LIB "ARCH;SOURCES;CFLAGS;DEFS" "" ${ARGN})
add_library(${name} STATIC ${LIB_SOURCES})
set_target_compile_flags(${name} ${LIB_CFLAGS})
set_property(TARGET ${name} APPEND PROPERTY
COMPILE_DEFINITIONS ${LIB_DEFS})
set_target_properties(${name} PROPERTIES
OSX_ARCHITECTURES "${LIB_ARCH}"
ARCHIVE_OUTPUT_DIRECTORY ${COMPILER_RT_LIBRARY_OUTPUT_DIR})
install(TARGETS ${name}
ARCHIVE DESTINATION ${COMPILER_RT_LIBRARY_INSTALL_DIR})
endmacro()
# Adds dynamic runtime library on osx/iossim, which supports multiple
# architectures.
# add_compiler_rt_darwin_dynamic_runtime(<name> <os>
# ARCH <architectures>
# SOURCES <source files>
# CFLAGS <compile flags>
# DEFS <compile definitions>
# LINKFLAGS <link flags>)
macro(add_compiler_rt_darwin_dynamic_runtime name os)
parse_arguments(LIB "ARCH;SOURCES;CFLAGS;DEFS;LINKFLAGS" "" ${ARGN})
add_library(${name} SHARED ${LIB_SOURCES})
set_target_compile_flags(${name} ${LIB_CFLAGS} ${DARWIN_${os}_CFLAGS})
set_target_link_flags(${name} ${LIB_LINKFLAGS} ${DARWIN_${os}_LINKFLAGS})
set_property(TARGET ${name} APPEND PROPERTY
COMPILE_DEFINITIONS ${LIB_DEFS})
set_target_properties(${name} PROPERTIES
OSX_ARCHITECTURES "${LIB_ARCH}"
LIBRARY_OUTPUT_DIRECTORY ${COMPILER_RT_LIBRARY_OUTPUT_DIR})
install(TARGETS ${name}
LIBRARY DESTINATION ${COMPILER_RT_LIBRARY_INSTALL_DIR})
endmacro()
set(COMPILER_RT_TEST_CFLAGS)
# Unittests support.
set(COMPILER_RT_GTEST_PATH ${LLVM_MAIN_SRC_DIR}/utils/unittest/googletest)
set(COMPILER_RT_GTEST_SOURCE ${COMPILER_RT_GTEST_PATH}/src/gtest-all.cc)
set(COMPILER_RT_GTEST_CFLAGS
-DGTEST_NO_LLVM_RAW_OSTREAM=1
-DGTEST_HAS_RTTI=0
-I${COMPILER_RT_GTEST_PATH}/include
-I${COMPILER_RT_GTEST_PATH}
)
if(MSVC)
# clang doesn't support exceptions on Windows yet.
list(APPEND COMPILER_RT_TEST_CFLAGS
-D_HAS_EXCEPTIONS=0)
# We should teach clang to understand "#pragma intrinsic", see PR19898.
list(APPEND COMPILER_RT_TEST_CFLAGS -Wno-undefined-inline)
# Clang doesn't support SEH on Windows yet.
list(APPEND COMPILER_RT_GTEST_CFLAGS -DGTEST_HAS_SEH=0)
# gtest use a lot of stuff marked as deprecated on Windows.
list(APPEND COMPILER_RT_GTEST_CFLAGS -Wno-deprecated-declarations)
endif()
# Link objects into a single executable with COMPILER_RT_TEST_COMPILER,
# using specified link flags. Make executable a part of provided
# test_suite.
# add_compiler_rt_test(<test_suite> <test_name>
# OBJECTS <object files>
# DEPS <deps (e.g. runtime libs)>
# LINK_FLAGS <link flags>)
macro(add_compiler_rt_test test_suite test_name)
parse_arguments(TEST "OBJECTS;DEPS;LINK_FLAGS" "" ${ARGN})
set(output_bin "${CMAKE_CURRENT_BINARY_DIR}/${test_name}")
# Use host compiler in a standalone build, and just-built Clang otherwise.
if(NOT COMPILER_RT_STANDALONE_BUILD)
list(APPEND TEST_DEPS clang)
endif()
# If we're not on MSVC, include the linker flags from CMAKE but override them
# with the provided link flags. This ensures that flags which are required to
# link programs at all are included, but the changes needed for the test
# trump. With MSVC we can't do that because CMake is set up to run link.exe
# when linking, not the compiler. Here, we hack it to use the compiler
# because we want to use -fsanitize flags.
if(NOT MSVC)
set(TEST_LINK_FLAGS "${CMAKE_EXE_LINKER_FLAGS} ${TEST_LINK_FLAGS}")
separate_arguments(TEST_LINK_FLAGS)
endif()
add_custom_target(${test_name}
COMMAND ${COMPILER_RT_TEST_COMPILER} ${TEST_OBJECTS}
-o "${output_bin}"
${TEST_LINK_FLAGS}
DEPENDS ${TEST_DEPS})
# Make the test suite depend on the binary.
add_dependencies(${test_suite} ${test_name})
endmacro()
macro(add_compiler_rt_resource_file target_name file_name)
set(src_file "${CMAKE_CURRENT_SOURCE_DIR}/${file_name}")
set(dst_file "${COMPILER_RT_OUTPUT_DIR}/${file_name}")
add_custom_command(OUTPUT ${dst_file}
DEPENDS ${src_file}
COMMAND ${CMAKE_COMMAND} -E copy_if_different ${src_file} ${dst_file}
COMMENT "Copying ${file_name}...")
add_custom_target(${target_name} DEPENDS ${dst_file})
# Install in Clang resource directory.
install(FILES ${file_name} DESTINATION ${COMPILER_RT_INSTALL_PATH})
endmacro()
macro(add_compiler_rt_script name)
set(dst ${COMPILER_RT_EXEC_OUTPUT_DIR}/${name})
set(src ${CMAKE_CURRENT_SOURCE_DIR}/${name})
add_custom_command(OUTPUT ${dst}
DEPENDS ${src}
COMMAND ${CMAKE_COMMAND} -E copy_if_different ${src} ${dst}
COMMENT "Copying ${name}...")
add_custom_target(${name} DEPENDS ${dst})
install(FILES ${dst}
PERMISSIONS OWNER_READ OWNER_WRITE OWNER_EXECUTE GROUP_READ GROUP_EXECUTE WORLD_READ WORLD_EXECUTE
DESTINATION ${COMPILER_RT_INSTALL_PATH}/bin)
endmacro(add_compiler_rt_script src name)
# Builds custom version of libc++ and installs it in <prefix>.
# Can be used to build sanitized versions of libc++ for running unit tests.
# add_custom_libcxx(<name> <prefix>
# DEPS <list of build deps>
# CFLAGS <list of compile flags>)
macro(add_custom_libcxx name prefix)
if(NOT COMPILER_RT_HAS_LIBCXX_SOURCES)
message(FATAL_ERROR "libcxx not found!")
endif()
parse_arguments(LIBCXX "DEPS;CFLAGS" "" ${ARGN})
foreach(flag ${LIBCXX_CFLAGS})
set(flagstr "${flagstr} ${flag}")
endforeach()
set(LIBCXX_CFLAGS ${flagstr})
if(NOT COMPILER_RT_STANDALONE_BUILD)
list(APPEND LIBCXX_DEPS clang)
endif()
ExternalProject_Add(${name}
PREFIX ${prefix}
SOURCE_DIR ${COMPILER_RT_LIBCXX_PATH}
CMAKE_ARGS -DCMAKE_C_COMPILER=${COMPILER_RT_TEST_COMPILER}
-DCMAKE_CXX_COMPILER=${COMPILER_RT_TEST_COMPILER}
-DCMAKE_C_FLAGS=${LIBCXX_CFLAGS}
-DCMAKE_CXX_FLAGS=${LIBCXX_CFLAGS}
-DCMAKE_BUILD_TYPE=Release
-DCMAKE_INSTALL_PREFIX:PATH=<INSTALL_DIR>
LOG_BUILD 1
LOG_CONFIGURE 1
LOG_INSTALL 1
)
ExternalProject_Add_Step(${name} force-reconfigure
DEPENDERS configure
ALWAYS 1
)
ExternalProject_Add_Step(${name} clobber
COMMAND ${CMAKE_COMMAND} -E remove_directory <BINARY_DIR>
COMMAND ${CMAKE_COMMAND} -E make_directory <BINARY_DIR>
COMMENT "Clobberring ${name} build directory..."
DEPENDERS configure
DEPENDS ${LIBCXX_DEPS}
)
endmacro()