# Build for the undefined behavior sanitizer runtime support library.
set(UBSAN_SOURCES
ubsan_diag.cpp
ubsan_init.cpp
ubsan_flags.cpp
ubsan_handlers.cpp
ubsan_monitor.cpp
ubsan_value.cpp
)
set(UBSAN_STANDALONE_SOURCES
ubsan_diag_standalone.cpp
ubsan_init_standalone.cpp
ubsan_signals_standalone.cpp
)
set(UBSAN_CXXABI_SOURCES
ubsan_handlers_cxx.cpp
ubsan_type_hash.cpp
ubsan_type_hash_itanium.cpp
ubsan_type_hash_win.cpp
)
set(UBSAN_HEADERS
ubsan_checks.inc
ubsan_diag.h
ubsan_flags.h
ubsan_flags.inc
ubsan_handlers.h
ubsan_handlers_cxx.h
ubsan_init.h
ubsan_interface.inc
ubsan_monitor.h
ubsan_platform.h
ubsan_signals_standalone.h
ubsan_type_hash.h
ubsan_value.h
)
include_directories(..)
set(UBSAN_CFLAGS ${SANITIZER_COMMON_CFLAGS})
append_list_if(MSVC /Zl UBSAN_CFLAGS)
append_rtti_flag(OFF UBSAN_CFLAGS)
append_list_if(SANITIZER_CAN_USE_CXXABI -DUBSAN_CAN_USE_CXXABI UBSAN_CFLAGS)
# Too many existing bugs, needs cleanup.
append_list_if(COMPILER_RT_HAS_WNO_FORMAT -Wno-format UBSAN_CFLAGS)
set(UBSAN_STANDALONE_CFLAGS ${SANITIZER_COMMON_CFLAGS})
append_rtti_flag(OFF UBSAN_STANDALONE_CFLAGS)
append_list_if(SANITIZER_CAN_USE_CXXABI -DUBSAN_CAN_USE_CXXABI UBSAN_STANDALONE_CFLAGS)
set(UBSAN_CXXFLAGS ${SANITIZER_COMMON_CFLAGS})
append_rtti_flag(ON UBSAN_CXXFLAGS)
append_list_if(SANITIZER_CAN_USE_CXXABI -DUBSAN_CAN_USE_CXXABI UBSAN_CXXFLAGS)
# Silence warnings in system headers with MSVC.
if(NOT CLANG_CL)
append_list_if(COMPILER_RT_HAS_EXTERNAL_FLAG "/experimental:external;/external:W0;/external:anglebrackets" UBSAN_CXXFLAGS)
endif()
set(UBSAN_LINK_FLAGS ${SANITIZER_COMMON_LINK_FLAGS})
set(UBSAN_DYNAMIC_LIBS
${COMPILER_RT_UNWINDER_LINK_LIBS}
${SANITIZER_CXX_ABI_LIBRARIES}
${SANITIZER_COMMON_LINK_LIBS})
append_list_if(COMPILER_RT_HAS_LIBDL dl UBSAN_DYNAMIC_LIBS)
append_list_if(COMPILER_RT_HAS_LIBLOG log UBSAN_DYNAMIC_LIBS)
append_list_if(COMPILER_RT_HAS_LIBRT rt UBSAN_DYNAMIC_LIBS)
append_list_if(COMPILER_RT_HAS_LIBPTHREAD pthread UBSAN_DYNAMIC_LIBS)
if (COMPILER_RT_ENABLE_INTERNAL_SYMBOLIZER)
append_list_if(COMPILER_RT_HAS_LIBM m UBSAN_DYNAMIC_LIBS)
endif()
add_compiler_rt_component(ubsan)
if(APPLE)
set(UBSAN_COMMON_SOURCES ${UBSAN_SOURCES})
if(SANITIZER_CAN_USE_CXXABI)
list(APPEND UBSAN_COMMON_SOURCES ${UBSAN_CXXABI_SOURCES})
endif()
# Common parts of UBSan runtime.
add_compiler_rt_object_libraries(RTUbsan
OS ${SANITIZER_COMMON_SUPPORTED_OS}
ARCHS ${UBSAN_COMMON_SUPPORTED_ARCH}
SOURCES ${UBSAN_COMMON_SOURCES}
ADDITIONAL_HEADERS ${UBSAN_HEADERS}
CFLAGS ${UBSAN_CXXFLAGS})
if(COMPILER_RT_HAS_UBSAN)
# Initializer of standalone UBSan runtime.
add_compiler_rt_object_libraries(RTUbsan_standalone
OS ${UBSAN_SUPPORTED_OS}
ARCHS ${UBSAN_SUPPORTED_ARCH}
SOURCES ${UBSAN_STANDALONE_SOURCES}
ADDITIONAL_HEADERS ${UBSAN_HEADERS}
CFLAGS ${UBSAN_STANDALONE_CFLAGS})
add_weak_symbols("ubsan" WEAK_SYMBOL_LINK_FLAGS)
add_weak_symbols("sanitizer_common" WEAK_SYMBOL_LINK_FLAGS)
add_compiler_rt_runtime(clang_rt.ubsan
SHARED
OS ${UBSAN_SUPPORTED_OS}
ARCHS ${UBSAN_SUPPORTED_ARCH}
OBJECT_LIBS RTUbsan
RTUbsan_standalone
RTSanitizerCommon
RTSanitizerCommonLibc
RTSanitizerCommonCoverage
RTSanitizerCommonSymbolizer
RTInterception
LINK_FLAGS ${WEAK_SYMBOL_LINK_FLAGS}
PARENT_TARGET ubsan)
if (NOT APPLE)
add_compiler_rt_runtime(clang_rt.ubsan
STATIC
OS ${UBSAN_SUPPORTED_OS}
ARCHS ${UBSAN_SUPPORTED_ARCH}
OBJECT_LIBS RTUbsan
RTUbsan_standalone
RTSanitizerCommonNoHooks
RTSanitizerCommonLibcNoHooks
RTSanitizerCommonCoverage
RTSanitizerCommonSymbolizerNoHooks
RTInterception
LINK_FLAGS ${WEAK_SYMBOL_LINK_FLAGS}
PARENT_TARGET ubsan)
endif()
endif()
else()
# Common parts of UBSan runtime.
add_compiler_rt_object_libraries(RTUbsan
ARCHS ${UBSAN_COMMON_SUPPORTED_ARCH}
SOURCES ${UBSAN_SOURCES}
ADDITIONAL_HEADERS ${UBSAN_HEADERS}
CFLAGS ${UBSAN_CFLAGS})
if(SANITIZER_CAN_USE_CXXABI)
# C++-specific parts of UBSan runtime. Requires a C++ ABI library.
set(UBSAN_CXX_SOURCES ${UBSAN_CXXABI_SOURCES})
else()
# Dummy target if we don't have C++ ABI library.
file(WRITE ${CMAKE_CURRENT_BINARY_DIR}/cxx_dummy.cpp "")
set(UBSAN_CXX_SOURCES ${CMAKE_CURRENT_BINARY_DIR}/cxx_dummy.cpp)
endif()
add_compiler_rt_object_libraries(RTUbsan_cxx
ARCHS ${UBSAN_COMMON_SUPPORTED_ARCH}
SOURCES ${UBSAN_CXX_SOURCES}
ADDITIONAL_HEADERS ${UBSAN_HEADERS}
CFLAGS ${UBSAN_CXXFLAGS})
if (WIN32)
add_compiler_rt_object_libraries(UbsanWeakInterception
${SANITIZER_COMMON_SUPPORTED_OS}
ARCHS ${UBSAN_SUPPORTED_ARCH}
SOURCES
ubsan_win_weak_interception.cpp
CFLAGS ${UBSAN_CFLAGS} -DSANITIZER_DYNAMIC
DEFS ${UBSAN_COMMON_DEFINITIONS})
add_compiler_rt_object_libraries(UbsanDllThunk
${SANITIZER_COMMON_SUPPORTED_OS}
ARCHS ${UBSAN_SUPPORTED_ARCH}
SOURCES
ubsan_win_dll_thunk.cpp
CFLAGS ${UBSAN_CFLAGS} -DSANITIZER_DLL_THUNK
DEFS ${UBSAN_COMMON_DEFINITIONS})
set(DYNAMIC_RUNTIME_THUNK_CFLAGS "-DSANITIZER_DYNAMIC_RUNTIME_THUNK")
if(MSVC)
list(APPEND DYNAMIC_RUNTIME_THUNK_CFLAGS "-Zl")
elseif(CMAKE_C_COMPILER_ID MATCHES Clang)
list(APPEND DYNAMIC_RUNTIME_THUNK_CFLAGS "-nodefaultlibs")
endif()
add_compiler_rt_object_libraries(UbsanDynamicRuntimeThunk
${SANITIZER_COMMON_SUPPORTED_OS}
ARCHS ${UBSAN_SUPPORTED_ARCH}
SOURCES
ubsan_win_dynamic_runtime_thunk.cpp
CFLAGS ${UBSAN_CFLAGS} ${DYNAMIC_RUNTIME_THUNK_CFLAGS}
DEFS ${UBSAN_COMMON_DEFINITIONS})
endif()
if(COMPILER_RT_HAS_UBSAN)
add_compiler_rt_object_libraries(RTUbsan_standalone
ARCHS ${UBSAN_SUPPORTED_ARCH}
SOURCES ${UBSAN_STANDALONE_SOURCES}
ADDITIONAL_HEADERS ${UBSAN_HEADERS}
CFLAGS ${UBSAN_STANDALONE_CFLAGS})
# Standalone UBSan runtimes.
add_compiler_rt_runtime(clang_rt.ubsan_standalone
STATIC
ARCHS ${UBSAN_SUPPORTED_ARCH}
SOURCES
ubsan_init_standalone_preinit.cpp
ADDITIONAL_HEADERS ${UBSAN_HEADERS}
OBJECT_LIBS RTSanitizerCommon
RTSanitizerCommonLibc
RTSanitizerCommonCoverage
RTSanitizerCommonSymbolizer
RTSanitizerCommonSymbolizerInternal
RTUbsan
RTUbsan_standalone
RTInterception
CFLAGS ${UBSAN_CFLAGS}
PARENT_TARGET ubsan)
add_compiler_rt_runtime(clang_rt.ubsan_standalone_cxx
STATIC
ARCHS ${UBSAN_SUPPORTED_ARCH}
OBJECT_LIBS RTUbsan_cxx
CFLAGS ${UBSAN_CXXFLAGS}
PARENT_TARGET ubsan)
if (COMPILER_RT_HAS_VERSION_SCRIPT)
file(WRITE ${CMAKE_CURRENT_BINARY_DIR}/dummy.cpp "")
add_compiler_rt_object_libraries(RTUbsan_dynamic_version_script_dummy
ARCHS ${UBSAN_SUPPORTED_ARCH}
SOURCES ${CMAKE_CURRENT_BINARY_DIR}/dummy.cpp
CFLAGS ${UBSAN_CFLAGS})
foreach(arch ${UBSAN_SUPPORTED_ARCH})
add_sanitizer_rt_version_list(clang_rt.ubsan_standalone-dynamic-${arch}
LIBS clang_rt.ubsan_standalone-${arch}
clang_rt.ubsan_standalone_cxx-${arch}
EXTRA ubsan.syms.extra)
set(VERSION_SCRIPT_FLAG
-Wl,--version-script,${CMAKE_CURRENT_BINARY_DIR}/clang_rt.ubsan_standalone-dynamic-${arch}.vers)
# The Solaris 11.4 linker supports a subset of GNU ld version scripts,
# but requires a special option to enable it.
if (COMPILER_RT_HAS_GNU_VERSION_SCRIPT_COMPAT)
list(APPEND VERSION_SCRIPT_FLAG -Wl,-z,gnu-version-script-compat)
endif()
set_property(SOURCE
${CMAKE_CURRENT_BINARY_DIR}/dummy.cpp
APPEND PROPERTY
OBJECT_DEPENDS ${CMAKE_CURRENT_BINARY_DIR}/clang_rt.ubsan_standalone-dynamic-${arch}.vers)
add_compiler_rt_runtime(clang_rt.ubsan_standalone
SHARED
ARCHS ${arch}
OBJECT_LIBS RTSanitizerCommon
RTSanitizerCommonLibc
RTSanitizerCommonCoverage
RTSanitizerCommonSymbolizer
RTSanitizerCommonSymbolizerInternal
RTUbsan
RTUbsan_cxx
RTUbsan_standalone
RTInterception
RTUbsan_dynamic_version_script_dummy
CFLAGS ${UBSAN_CFLAGS}
LINK_FLAGS ${UBSAN_LINK_FLAGS} ${VERSION_SCRIPT_FLAG}
LINK_LIBS ${UBSAN_DYNAMIC_LIBS}
PARENT_TARGET ubsan)
endforeach()
set(ARCHS_FOR_SYMBOLS ${UBSAN_SUPPORTED_ARCH})
list(REMOVE_ITEM ARCHS_FOR_SYMBOLS i386)
add_sanitizer_rt_symbols(clang_rt.ubsan_standalone
ARCHS ${ARCHS_FOR_SYMBOLS}
PARENT_TARGET ubsan
EXTRA ubsan.syms.extra)
add_sanitizer_rt_symbols(clang_rt.ubsan_standalone_cxx
ARCHS ${ARCHS_FOR_SYMBOLS}
PARENT_TARGET ubsan
EXTRA ubsan.syms.extra)
endif()
endif()
endif()
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