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set(LIBFUZZER_SOURCES
FuzzerCrossOver.cpp
FuzzerDataFlowTrace.cpp
FuzzerDriver.cpp
FuzzerExtFunctionsDlsym.cpp
FuzzerExtFunctionsDlsymWin.cpp
FuzzerExtFunctionsWeak.cpp
FuzzerExtraCounters.cpp
FuzzerIO.cpp
FuzzerIOPosix.cpp
FuzzerIOWindows.cpp
FuzzerLoop.cpp
FuzzerMerge.cpp
FuzzerMutate.cpp
FuzzerSHA1.cpp
FuzzerShmemFuchsia.cpp
FuzzerShmemPosix.cpp
FuzzerShmemWindows.cpp
FuzzerTracePC.cpp
FuzzerUtil.cpp
FuzzerUtilDarwin.cpp
FuzzerUtilFuchsia.cpp
FuzzerUtilLinux.cpp
FuzzerUtilPosix.cpp
FuzzerUtilWindows.cpp
)
CHECK_CXX_SOURCE_COMPILES("
static thread_local int blah;
int main() {
return 0;
}
" HAS_THREAD_LOCAL)
set(LIBFUZZER_CFLAGS ${SANITIZER_COMMON_CFLAGS})
if(OS_NAME MATCHES "Linux|Fuchsia" AND COMPILER_RT_LIBCXX_PATH)
list(APPEND LIBFUZZER_CFLAGS -nostdinc++ -D_LIBCPP_ABI_VERSION=Fuzzer)
# Remove -stdlib= which is unused when passing -nostdinc++.
string(REGEX REPLACE "-stdlib=[a-zA-Z+]*" "" CMAKE_CXX_FLAGS ${CMAKE_CXX_FLAGS})
endif()
append_list_if(COMPILER_RT_HAS_OMIT_FRAME_POINTER_FLAG -fno-omit-frame-pointer LIBFUZZER_CFLAGS)
if (CMAKE_CXX_FLAGS MATCHES "fsanitize-coverage")
list(APPEND LIBFUZZER_CFLAGS -fno-sanitize-coverage=trace-pc-guard,edge,trace-cmp,indirect-calls,8bit-counters)
endif()
if(NOT HAS_THREAD_LOCAL)
list(APPEND LIBFUZZER_CFLAGS -Dthread_local=__thread)
endif()
set(FUZZER_SUPPORTED_OS ${SANITIZER_COMMON_SUPPORTED_OS})
add_compiler_rt_object_libraries(RTfuzzer
OS ${FUZZER_SUPPORTED_OS}
ARCHS ${FUZZER_SUPPORTED_ARCH}
SOURCES ${LIBFUZZER_SOURCES}
CFLAGS ${LIBFUZZER_CFLAGS})
add_compiler_rt_object_libraries(RTfuzzer_main
OS ${FUZZER_SUPPORTED_OS}
ARCHS ${FUZZER_SUPPORTED_ARCH}
SOURCES FuzzerMain.cpp
CFLAGS ${LIBFUZZER_CFLAGS})
add_compiler_rt_runtime(clang_rt.fuzzer
STATIC
OS ${FUZZER_SUPPORTED_OS}
ARCHS ${FUZZER_SUPPORTED_ARCH}
OBJECT_LIBS RTfuzzer RTfuzzer_main
CFLAGS ${LIBFUZZER_CFLAGS}
PARENT_TARGET fuzzer)
add_compiler_rt_runtime(clang_rt.fuzzer_no_main
STATIC
OS ${FUZZER_SUPPORTED_OS}
ARCHS ${FUZZER_SUPPORTED_ARCH}
OBJECT_LIBS RTfuzzer
CFLAGS ${LIBFUZZER_CFLAGS}
PARENT_TARGET fuzzer)
if(OS_NAME MATCHES "Linux|Fuchsia" AND COMPILER_RT_LIBCXX_PATH)
macro(partially_link_libcxx name dir arch)
set(cxx_${arch}_merge_dir "${CMAKE_CURRENT_BINARY_DIR}/cxx_${arch}_merge.dir")
file(MAKE_DIRECTORY ${cxx_${arch}_merge_dir})
add_custom_command(TARGET clang_rt.${name}-${arch} POST_BUILD
COMMAND ${CMAKE_LINKER} --whole-archive "$<TARGET_LINKER_FILE:clang_rt.${name}-${arch}>" --no-whole-archive ${dir}/lib/libc++.a -r -o ${name}.o
COMMAND ${CMAKE_OBJCOPY} --localize-hidden ${name}.o
COMMAND ${CMAKE_COMMAND} -E remove "$<TARGET_LINKER_FILE:clang_rt.${name}-${arch}>"
COMMAND ${CMAKE_AR} qcs "$<TARGET_LINKER_FILE:clang_rt.${name}-${arch}>" ${name}.o
WORKING_DIRECTORY ${cxx_${arch}_merge_dir}
)
endmacro()
foreach(arch ${FUZZER_SUPPORTED_ARCH})
get_target_flags_for_arch(${arch} TARGET_CFLAGS)
set(LIBCXX_${arch}_PREFIX ${CMAKE_CURRENT_BINARY_DIR}/libcxx_fuzzer_${arch})
add_custom_libcxx(libcxx_fuzzer_${arch} ${LIBCXX_${arch}_PREFIX}
CFLAGS ${TARGET_CFLAGS}
-D_LIBCPP_ABI_VERSION=Fuzzer
-D_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS=1
-fvisibility=hidden
CMAKE_ARGS -DCMAKE_CXX_COMPILER_WORKS=ON
-DLIBCXX_ENABLE_EXCEPTIONS=OFF
-DLIBCXX_ENABLE_SHARED=OFF
-DLIBCXX_CXX_ABI=none)
target_compile_options(RTfuzzer.${arch} PRIVATE -isystem ${LIBCXX_${arch}_PREFIX}/include/c++/v1)
add_dependencies(RTfuzzer.${arch} libcxx_fuzzer_${arch}-build)
target_compile_options(RTfuzzer_main.${arch} PRIVATE -isystem ${LIBCXX_${arch}_PREFIX}/include/c++/v1)
add_dependencies(RTfuzzer_main.${arch} libcxx_fuzzer_${arch}-build)
partially_link_libcxx(fuzzer_no_main ${LIBCXX_${arch}_PREFIX} ${arch})
partially_link_libcxx(fuzzer ${LIBCXX_${arch}_PREFIX} ${arch})
endforeach()
endif()
if(COMPILER_RT_INCLUDE_TESTS)
add_subdirectory(tests)
endif()
|
