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# this library provides main() for compilers that do not have libfuzzer (everyone except clang)
# so the source code is compiled regardless of compiler, which prevents code rot.
# also, the library provides a way to invoke the fuzzer on external data which is
# useful to run the fuzz corpus through code also when not using clang.
add_library(main STATIC main.cpp)
target_compile_features(main PRIVATE cxx_std_20)
# see if libfuzzer is supported - this gets more complicated than just checking
# for clang, because apple clang does not seem to support it and windows also
# support clang nowadays (and perhaps libfuzzer)
include(CheckSourceCompiles)
set(CMAKE_REQUIRED_LINK_OPTIONS -fsanitize=fuzzer)
check_source_compiles(CXX "
#include <cstddef>
#include <cstdint>
extern \"C\" int LLVMFuzzerTestOneInput(const uint8_t* Data, size_t Size)
{ return 0;}
" haslibfuzzer)
macro(create_fuzztest testname)
add_executable(${testname} ${testname}.cpp)
target_compile_features(${testname} PRIVATE cxx_std_20)
target_link_libraries(${testname} PRIVATE simdutf)
if(haslibfuzzer)
target_compile_options(${testname} PUBLIC -fsanitize=fuzzer)
target_link_options(${testname} PUBLIC -fsanitize=fuzzer)
else()
# supply a separate main
target_link_libraries(${testname} PRIVATE main)
endif()
endmacro()
create_fuzztest(conversion)
create_fuzztest(misc)
if (CMAKE_CXX_COMPILER_ID MATCHES "Clang")
# this file uses FuzzedDataProvider.h which is provided by clang
create_fuzztest(roundtrip)
endif()
create_fuzztest(base64)
create_fuzztest(atomic_base64)
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