include(CheckCXXCompilerFlag)
include(CompilerRTCompile)
include(CompilerRTLink)
include_directories(..)
include_directories(../..)
set(MSAN_LIBCXX_CFLAGS
-fsanitize=memory
-fsanitize-memory-track-origins
-Wno-pedantic)
# Unittest sources and build flags.
set(MSAN_UNITTEST_SOURCES msan_test.cc msan_test_main.cc)
set(MSAN_LOADABLE_SOURCE msan_loadable.cc)
set(MSAN_UNITTEST_HEADERS
msan_test_config.h
msandr_test_so.h
../../../include/sanitizer/msan_interface.h
)
set(MSANDR_UNITTEST_SOURCE msandr_test_so.cc)
set(MSAN_UNITTEST_COMMON_CFLAGS
-I${COMPILER_RT_LIBCXX_PATH}/include
${COMPILER_RT_GTEST_CFLAGS}
-I${COMPILER_RT_SOURCE_DIR}/include
-I${COMPILER_RT_SOURCE_DIR}/lib
-I${COMPILER_RT_SOURCE_DIR}/lib/msan
-stdlib=libc++
-g
-O2
-fno-exceptions
-fno-omit-frame-pointer
-mno-omit-leaf-frame-pointer
-Wno-deprecated-declarations
-Wno-unused-variable
-Wno-zero-length-array
-Werror=sign-compare
)
set(MSAN_UNITTEST_INSTRUMENTED_CFLAGS
${MSAN_UNITTEST_COMMON_CFLAGS}
-fsanitize=memory
-fsanitize-memory-track-origins
-mllvm -msan-keep-going=1
)
set(MSAN_UNITTEST_LINK_FLAGS
-fsanitize=memory
# FIXME: we build libcxx without cxxabi and need libstdc++ to provide it.
-lstdc++
)
append_if(COMPILER_RT_HAS_LIBDL -ldl MSAN_UNITTEST_LINK_FLAGS)
set(MSAN_LOADABLE_LINK_FLAGS
-fsanitize=memory
-shared
)
# Compile source for the given architecture, using compiler
# options in ${ARGN}, and add it to the object list.
macro(msan_compile obj_list source arch kind)
get_filename_component(basename ${source} NAME)
set(output_obj "${basename}.${arch}${kind}.o")
get_target_flags_for_arch(${arch} TARGET_CFLAGS)
set(COMPILE_DEPS ${MSAN_UNITTEST_HEADERS})
if(NOT COMPILER_RT_STANDALONE_BUILD)
list(APPEND COMPILE_DEPS gtest msan)
endif()
clang_compile(${output_obj} ${source}
CFLAGS ${ARGN} ${TARGET_CFLAGS}
DEPS ${COMPILE_DEPS})
list(APPEND ${obj_list} ${output_obj})
endmacro()
macro(msan_link_shared so_list so_name arch kind)
parse_arguments(SOURCE "OBJECTS;LINKFLAGS;DEPS" "" ${ARGN})
set(output_so "${CMAKE_CURRENT_BINARY_DIR}/${so_name}.${arch}${kind}.so")
get_target_flags_for_arch(${arch} TARGET_LINKFLAGS)
if(NOT COMPILER_RT_STANDALONE_BUILD)
list(APPEND SOURCE_DEPS msan)
endif()
clang_link_shared(${output_so}
OBJECTS ${SOURCE_OBJECTS}
LINKFLAGS ${TARGET_LINKFLAGS} ${SOURCE_LINKFLAGS}
DEPS ${SOURCE_DEPS})
list(APPEND ${so_list} ${output_so})
endmacro()
# Main MemorySanitizer unit tests.
add_custom_target(MsanUnitTests)
set_target_properties(MsanUnitTests PROPERTIES FOLDER "MSan unit tests")
# Adds MSan unit tests and benchmarks for architecture.
macro(add_msan_tests_for_arch arch kind)
set(LIBCXX_PREFIX ${CMAKE_CURRENT_BINARY_DIR}/../libcxx_msan${kind})
add_custom_libcxx(libcxx_msan${kind} ${LIBCXX_PREFIX}
DEPS ${MSAN_RUNTIME_LIBRARIES}
CFLAGS ${MSAN_LIBCXX_CFLAGS} ${ARGN})
set(MSAN_LIBCXX_SO ${LIBCXX_PREFIX}/lib/libc++.so)
# Build gtest instrumented with MSan.
set(MSAN_INST_GTEST)
msan_compile(MSAN_INST_GTEST ${COMPILER_RT_GTEST_SOURCE} ${arch} "${kind}"
${MSAN_UNITTEST_INSTRUMENTED_CFLAGS} ${ARGN})
# Instrumented tests.
set(MSAN_INST_TEST_OBJECTS)
foreach (SOURCE ${MSAN_UNITTEST_SOURCES})
msan_compile(MSAN_INST_TEST_OBJECTS ${SOURCE} ${arch} "${kind}"
${MSAN_UNITTEST_INSTRUMENTED_CFLAGS} ${ARGN})
endforeach(SOURCE)
# Instrumented loadable module objects.
set(MSAN_INST_LOADABLE_OBJECTS)
msan_compile(MSAN_INST_LOADABLE_OBJECTS ${MSAN_LOADABLE_SOURCE} ${arch} "${kind}"
${MSAN_UNITTEST_INSTRUMENTED_CFLAGS} ${ARGN})
# Uninstrumented shared object for MSanDR tests.
set(MSANDR_TEST_OBJECTS)
msan_compile(MSANDR_TEST_OBJECTS ${MSANDR_UNITTEST_SOURCE} ${arch} "${kind}"
${MSAN_UNITTEST_COMMON_CFLAGS})
# Instrumented loadable library tests.
set(MSAN_LOADABLE_SO)
msan_link_shared(MSAN_LOADABLE_SO "libmsan_loadable" ${arch} "${kind}"
OBJECTS ${MSAN_INST_LOADABLE_OBJECTS}
DEPS ${MSAN_INST_LOADABLE_OBJECTS})
# Uninstrumented shared library tests.
set(MSANDR_TEST_SO)
msan_link_shared(MSANDR_TEST_SO "libmsandr_test" ${arch} "${kind}"
OBJECTS ${MSANDR_TEST_OBJECTS}
DEPS ${MSANDR_TEST_OBJECTS})
set(MSAN_TEST_OBJECTS ${MSAN_INST_TEST_OBJECTS} ${MSAN_INST_GTEST}
${MSANDR_TEST_SO})
set(MSAN_TEST_DEPS ${MSAN_TEST_OBJECTS} libcxx_msan${kind}
${MSAN_LOADABLE_SO})
if(NOT COMPILER_RT_STANDALONE_BUILD)
list(APPEND MSAN_TEST_DEPS msan)
endif()
get_target_flags_for_arch(${arch} TARGET_LINK_FLAGS)
add_compiler_rt_test(MsanUnitTests "Msan-${arch}${kind}-Test" ${arch}
OBJECTS ${MSAN_TEST_OBJECTS} ${MSAN_LIBCXX_SO}
DEPS ${MSAN_TEST_DEPS}
LINK_FLAGS ${MSAN_UNITTEST_LINK_FLAGS}
${TARGET_LINK_FLAGS}
"-Wl,-rpath=${CMAKE_CURRENT_BINARY_DIR}"
"-Wl,-rpath=${LIBCXX_PREFIX}/lib")
endmacro()
# We should only build MSan unit tests if we can build instrumented libcxx.
if(COMPILER_RT_CAN_EXECUTE_TESTS AND COMPILER_RT_HAS_LIBCXX_SOURCES)
if(CAN_TARGET_x86_64)
add_msan_tests_for_arch(x86_64 "")
add_msan_tests_for_arch(x86_64 "-with-call"
-mllvm -msan-instrumentation-with-call-threshold=0)
endif()
endif()