| # Get sources |
| set(LIBCXXABI_SOURCES |
| # C++ABI files |
| cxa_aux_runtime.cpp |
| cxa_default_handlers.cpp |
| cxa_demangle.cpp |
| cxa_exception_storage.cpp |
| cxa_guard.cpp |
| cxa_handlers.cpp |
| cxa_vector.cpp |
| cxa_virtual.cpp |
| # C++ STL files |
| stdlib_exception.cpp |
| stdlib_stdexcept.cpp |
| stdlib_typeinfo.cpp |
| # Internal files |
| abort_message.cpp |
| fallback_malloc.cpp |
| private_typeinfo.cpp |
| ) |
| |
| if (LIBCXXABI_ENABLE_NEW_DELETE_DEFINITIONS) |
| list(APPEND LIBCXXABI_SOURCES |
| stdlib_new_delete.cpp |
| ) |
| endif() |
| |
| if (LIBCXXABI_ENABLE_EXCEPTIONS) |
| list(APPEND LIBCXXABI_SOURCES |
| cxa_exception.cpp |
| cxa_personality.cpp |
| ) |
| else() |
| list(APPEND LIBCXXABI_SOURCES |
| cxa_noexception.cpp |
| ) |
| endif() |
| |
| if (LIBCXXABI_ENABLE_THREADS AND (UNIX OR FUCHSIA) AND NOT (APPLE OR CYGWIN) |
| AND NOT (${CMAKE_SYSTEM_NAME} MATCHES "AIX")) |
| list(APPEND LIBCXXABI_SOURCES |
| cxa_thread_atexit.cpp |
| ) |
| endif() |
| |
| set(LIBCXXABI_HEADERS |
| ../include/cxxabi.h |
| ) |
| |
| # Add all the headers to the project for IDEs. |
| if (MSVC_IDE OR XCODE) |
| # Force them all into the headers dir on MSVC, otherwise they end up at |
| # project scope because they don't have extensions. |
| if (MSVC_IDE) |
| source_group("Header Files" FILES ${LIBCXXABI_HEADERS}) |
| endif() |
| endif() |
| |
| # Some files depend on libc++ internals. |
| include_directories("${LIBCXXABI_LIBCXX_PATH}/src") |
| |
| if (LIBCXXABI_HAS_CXA_THREAD_ATEXIT_IMPL) |
| add_definitions(-DHAVE___CXA_THREAD_ATEXIT_IMPL) |
| endif() |
| |
| if (LIBCXXABI_ENABLE_FORGIVING_DYNAMIC_CAST) |
| add_definitions(-D_LIBCXXABI_FORGIVING_DYNAMIC_CAST) |
| endif() |
| |
| if (APPLE) |
| add_library_flags_if(LIBCXXABI_HAS_SYSTEM_LIB System) |
| else() |
| if (LIBCXXABI_ENABLE_THREADS) |
| add_library_flags_if(LIBCXXABI_HAS_PTHREAD_LIB pthread) |
| endif() |
| |
| add_library_flags_if(LIBCXXABI_HAS_C_LIB c) |
| endif() |
| |
| if (LIBCXXABI_USE_COMPILER_RT) |
| find_compiler_rt_library(builtins LIBCXXABI_BUILTINS_LIBRARY) |
| list(APPEND LIBCXXABI_SHARED_LIBRARIES "${LIBCXXABI_BUILTINS_LIBRARY}") |
| endif () |
| |
| if (LIBCXXABI_USE_LLVM_UNWINDER) |
| # Prefer using the in-tree version of libunwind, either shared or static. If |
| # none are found fall back to using -lunwind. |
| # FIXME: Is it correct to prefer the static version of libunwind? |
| if (NOT LIBCXXABI_STATICALLY_LINK_UNWINDER_IN_SHARED_LIBRARY AND (TARGET unwind_shared OR HAVE_LIBUNWIND)) |
| list(APPEND LIBCXXABI_SHARED_LIBRARIES unwind_shared) |
| elseif (LIBCXXABI_STATICALLY_LINK_UNWINDER_IN_SHARED_LIBRARY AND (TARGET unwind_static OR HAVE_LIBUNWIND)) |
| list(APPEND LIBCXXABI_SHARED_LIBRARIES unwind_static) |
| else() |
| list(APPEND LIBCXXABI_SHARED_LIBRARIES unwind) |
| endif() |
| if (NOT LIBCXXABI_STATICALLY_LINK_UNWINDER_IN_STATIC_LIBRARY AND (TARGET unwind_shared OR HAVE_LIBUNWIND)) |
| list(APPEND LIBCXXABI_STATIC_LIBRARIES unwind_shared) |
| elseif (LIBCXXABI_STATICALLY_LINK_UNWINDER_IN_STATIC_LIBRARY AND (TARGET unwind_static OR HAVE_LIBUNWIND)) |
| # We handle this by directly merging libunwind objects into libc++abi. |
| else() |
| list(APPEND LIBCXXABI_STATIC_LIBRARIES unwind) |
| endif() |
| else() |
| add_library_flags_if(LIBCXXABI_HAS_GCC_S_LIB gcc_s) |
| endif() |
| if (MINGW) |
| # MINGW_LIBRARIES is defined in config-ix.cmake |
| list(APPEND LIBCXXABI_LIBRARIES ${MINGW_LIBRARIES}) |
| endif() |
| if (ANDROID AND ANDROID_PLATFORM_LEVEL LESS 21) |
| list(APPEND LIBCXXABI_LIBRARIES android_support) |
| endif() |
| |
| if (NOT LIBCXXABI_USE_COMPILER_RT) |
| add_library_flags_if(LIBCXXABI_HAS_GCC_LIB gcc) |
| endif () |
| |
| # Setup flags. |
| if (LIBCXXABI_SUPPORTS_NOSTDLIBXX_FLAG) |
| add_link_flags_if_supported(-nostdlib++) |
| else() |
| add_link_flags_if_supported(-nodefaultlibs) |
| endif() |
| |
| if ( APPLE ) |
| if (LLVM_USE_SANITIZER) |
| if (("${LLVM_USE_SANITIZER}" STREQUAL "Address") OR |
| ("${LLVM_USE_SANITIZER}" STREQUAL "Address;Undefined") OR |
| ("${LLVM_USE_SANITIZER}" STREQUAL "Undefined;Address")) |
| set(LIBFILE "libclang_rt.asan_osx_dynamic.dylib") |
| elseif("${LLVM_USE_SANITIZER}" STREQUAL "Undefined") |
| set(LIBFILE "libclang_rt.ubsan_osx_dynamic.dylib") |
| elseif("${LLVM_USE_SANITIZER}" STREQUAL "Thread") |
| set(LIBFILE "libclang_rt.tsan_osx_dynamic.dylib") |
| else() |
| message(WARNING "LLVM_USE_SANITIZER=${LLVM_USE_SANITIZER} is not supported on OS X") |
| endif() |
| if (LIBFILE) |
| find_compiler_rt_library(builtins LIBCXXABI_BUILTINS_LIBRARY) |
| get_filename_component(LIBDIR "${LIBCXXABI_BUILTINS_LIBRARY}" DIRECTORY) |
| if (NOT IS_DIRECTORY "${LIBDIR}") |
| message(FATAL_ERROR "Cannot find compiler-rt directory on OS X required for LLVM_USE_SANITIZER") |
| endif() |
| set(LIBCXXABI_SANITIZER_LIBRARY "${LIBDIR}/${LIBFILE}") |
| set(LIBCXXABI_SANITIZER_LIBRARY "${LIBCXXABI_SANITIZER_LIBRARY}" PARENT_SCOPE) |
| message(STATUS "Manually linking compiler-rt library: ${LIBCXXABI_SANITIZER_LIBRARY}") |
| add_library_flags("${LIBCXXABI_SANITIZER_LIBRARY}") |
| add_link_flags("-Wl,-rpath,${LIBDIR}") |
| endif() |
| endif() |
| |
| # Make sure we link in CrashReporterClient if we find it -- it's used by |
| # abort() on Apple platforms when building the system dylib. |
| find_library(CrashReporterClient NAMES libCrashReporterClient.a |
| PATHS "${CMAKE_OSX_SYSROOT}/usr/local/lib") |
| if (CrashReporterClient) |
| message(STATUS "Linking with CrashReporterClient at ${CrashReporterClient}") |
| add_library_flags("${CrashReporterClient}") |
| else() |
| message(STATUS "Could not find CrashReporterClient, not linking against it") |
| endif() |
| endif() |
| |
| split_list(LIBCXXABI_COMPILE_FLAGS) |
| split_list(LIBCXXABI_LINK_FLAGS) |
| |
| # FIXME: libc++abi.so will not link when modules are enabled because it depends |
| # on symbols defined in libc++.so which has not yet been built. |
| if (LLVM_ENABLE_MODULES) |
| string(REPLACE "-Wl,-z,defs" "" CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS}") |
| endif() |
| |
| if (NOT TARGET pstl::ParallelSTL) |
| message(STATUS "Could not find ParallelSTL, libc++abi will not attempt to use it but the build may fail if the libc++ in use needs it to be available.") |
| endif() |
| |
| # Build the shared library. |
| if (LIBCXXABI_ENABLE_SHARED) |
| add_library(cxxabi_shared SHARED ${LIBCXXABI_SOURCES} ${LIBCXXABI_HEADERS}) |
| target_link_libraries(cxxabi_shared PRIVATE cxx-headers ${LIBCXXABI_SHARED_LIBRARIES} ${LIBCXXABI_LIBRARIES}) |
| if (TARGET pstl::ParallelSTL) |
| target_link_libraries(cxxabi_shared PUBLIC pstl::ParallelSTL) |
| endif() |
| set_target_properties(cxxabi_shared |
| PROPERTIES |
| CXX_EXTENSIONS OFF |
| CXX_STANDARD 20 |
| CXX_STANDARD_REQUIRED OFF |
| COMPILE_FLAGS "${LIBCXXABI_COMPILE_FLAGS}" |
| LINK_FLAGS "${LIBCXXABI_LINK_FLAGS}" |
| OUTPUT_NAME "c++abi" |
| SOVERSION "1" |
| VERSION "${LIBCXXABI_LIBRARY_VERSION}" |
| DEFINE_SYMBOL "" |
| POSITION_INDEPENDENT_CODE ON |
| ) |
| |
| list(APPEND LIBCXXABI_BUILD_TARGETS "cxxabi_shared") |
| if (LIBCXXABI_INSTALL_SHARED_LIBRARY) |
| list(APPEND LIBCXXABI_INSTALL_TARGETS "cxxabi_shared") |
| endif() |
| |
| add_library(cxxabi-reexports INTERFACE) |
| |
| # -exported_symbols_list is only available on Apple platforms |
| if (APPLE) |
| function(export_symbols file) |
| target_link_libraries(cxxabi_shared PRIVATE "-Wl,-exported_symbols_list,${file}") |
| endfunction() |
| function(reexport_symbols file) |
| export_symbols("${file}") |
| target_link_libraries(cxxabi-reexports INTERFACE "-Wl,-reexported_symbols_list,${file}") |
| endfunction() |
| |
| export_symbols("${CMAKE_CURRENT_SOURCE_DIR}/../lib/itanium-base.exp") |
| |
| if (LIBCXXABI_ENABLE_NEW_DELETE_DEFINITIONS) |
| reexport_symbols("${CMAKE_CURRENT_SOURCE_DIR}/../lib/new-delete.exp") |
| endif() |
| |
| if (LIBCXXABI_ENABLE_EXCEPTIONS) |
| reexport_symbols("${CMAKE_CURRENT_SOURCE_DIR}/../lib/exceptions.exp") |
| |
| if ("${CMAKE_OSX_ARCHITECTURES}" MATCHES "^(armv6|armv7|armv7s)$") |
| reexport_symbols("${CMAKE_CURRENT_SOURCE_DIR}/../lib/personality-sjlj.exp") |
| else() |
| reexport_symbols("${CMAKE_CURRENT_SOURCE_DIR}/../lib/personality-v0.exp") |
| endif() |
| endif() |
| endif() |
| endif() |
| |
| # Build the static library. |
| if (LIBCXXABI_ENABLE_STATIC) |
| add_library(cxxabi_static STATIC ${LIBCXXABI_SOURCES} ${LIBCXXABI_HEADERS}) |
| target_link_libraries(cxxabi_static PRIVATE cxx-headers ${LIBCXXABI_STATIC_LIBRARIES} ${LIBCXXABI_LIBRARIES}) |
| if (TARGET pstl::ParallelSTL) |
| target_link_libraries(cxxabi_static PUBLIC pstl::ParallelSTL) |
| endif() |
| set_target_properties(cxxabi_static |
| PROPERTIES |
| CXX_EXTENSIONS OFF |
| CXX_STANDARD 20 |
| CXX_STANDARD_REQUIRED OFF |
| COMPILE_FLAGS "${LIBCXXABI_COMPILE_FLAGS}" |
| LINK_FLAGS "${LIBCXXABI_LINK_FLAGS}" |
| OUTPUT_NAME "c++abi" |
| POSITION_INDEPENDENT_CODE ON |
| ) |
| |
| if(LIBCXXABI_HERMETIC_STATIC_LIBRARY) |
| append_flags_if_supported(CXXABI_STATIC_LIBRARY_FLAGS -fvisibility=hidden) |
| # If the hermetic library doesn't define the operator new/delete functions |
| # then its code shouldn't declare them with hidden visibility. They might |
| # actually be provided by a shared library at link time. |
| if (LIBCXXABI_ENABLE_NEW_DELETE_DEFINITIONS) |
| append_flags_if_supported(CXXABI_STATIC_LIBRARY_FLAGS -fvisibility-global-new-delete-hidden) |
| endif() |
| target_compile_options(cxxabi_static PRIVATE ${CXXABI_STATIC_LIBRARY_FLAGS}) |
| target_compile_definitions(cxxabi_static |
| PRIVATE |
| _LIBCXXABI_DISABLE_VISIBILITY_ANNOTATIONS |
| _LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS) |
| endif() |
| |
| list(APPEND LIBCXXABI_BUILD_TARGETS "cxxabi_static") |
| if (LIBCXXABI_INSTALL_STATIC_LIBRARY) |
| list(APPEND LIBCXXABI_INSTALL_TARGETS "cxxabi_static") |
| endif() |
| |
| if (APPLE) |
| set(MERGE_ARCHIVES_LIBTOOL "--use-libtool" "--libtool" "${CMAKE_LIBTOOL}") |
| endif() |
| |
| # Merge the libc++abi.a and libunwind.a into one. |
| if(LIBCXXABI_USE_LLVM_UNWINDER AND LIBCXXABI_STATICALLY_LINK_UNWINDER_IN_STATIC_LIBRARY) |
| add_custom_command(TARGET cxxabi_static POST_BUILD |
| COMMAND ${Python3_EXECUTABLE} ${LIBCXXABI_LIBCXX_PATH}/utils/merge_archives.py |
| ARGS |
| -o "$<TARGET_LINKER_FILE:cxxabi_static>" |
| --ar "${CMAKE_AR}" |
| ${MERGE_ARCHIVES_LIBTOOL} |
| "$<TARGET_LINKER_FILE:cxxabi_static>" |
| "$<TARGET_LINKER_FILE:unwind_static>" |
| WORKING_DIRECTORY ${LIBCXXABI_BUILD_DIR} |
| DEPENDS unwind_static |
| ) |
| endif() |
| endif() |
| |
| # Add a meta-target for both libraries. |
| add_custom_target(cxxabi DEPENDS ${LIBCXXABI_BUILD_TARGETS}) |
| |
| if (LIBCXXABI_INSTALL_LIBRARY) |
| install(TARGETS ${LIBCXXABI_INSTALL_TARGETS} |
| LIBRARY DESTINATION ${LIBCXXABI_INSTALL_LIBRARY_DIR} COMPONENT cxxabi |
| ARCHIVE DESTINATION ${LIBCXXABI_INSTALL_LIBRARY_DIR} COMPONENT cxxabi |
| RUNTIME DESTINATION ${LIBCXXABI_INSTALL_RUNTIME_DIR} COMPONENT cxxabi |
| ) |
| endif() |
| |
| if (NOT CMAKE_CONFIGURATION_TYPES AND LIBCXXABI_INSTALL_LIBRARY) |
| add_custom_target(install-cxxabi |
| DEPENDS cxxabi |
| COMMAND "${CMAKE_COMMAND}" |
| -DCMAKE_INSTALL_COMPONENT=cxxabi |
| -P "${LIBCXXABI_BINARY_DIR}/cmake_install.cmake") |
| add_custom_target(install-cxxabi-stripped |
| DEPENDS cxxabi |
| COMMAND "${CMAKE_COMMAND}" |
| -DCMAKE_INSTALL_COMPONENT=cxxabi |
| -DCMAKE_INSTALL_DO_STRIP=1 |
| -P "${LIBCXXABI_BINARY_DIR}/cmake_install.cmake") |
| endif() |