64 lines
2.3 KiB
CMake
64 lines
2.3 KiB
CMake
option(ENABLE_FUZZING "enable building the fuzzers" ON)
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if(ENABLE_FUZZING)
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# First attempt at a fuzzer, using libFuzzer.
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#
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# compile like this:
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# mkdir build-fuzzer
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# cd build-fuzzer
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# export LDFLAGS="-fsanitize=address,undefined"
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# export CXXFLAGS="-fsanitize=fuzzer-no-link,address,undefined"
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# export CFLAGS="-fsanitize=fuzzer-no-link,address,undefined"
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# export CXX=clang++
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# export CC=clang++
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# cmake .. -GNinja -DCMAKE_BUILD_TYPE=Debug -DENABLE_FUZZING=On -DSIMDJSON_FUZZ_LINKMAIN=Off -DSIMDJSON_FUZZ_LDFLAGS=-fsanitize=fuzzer
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# ninja
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# settings this links in a main. useful for reproducing,
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# kcov, gdb, afl, valgrind.
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# (note that libFuzzer can also reproduce, just pass it the files)
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#
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# Using this by default, means the fuzzers will be built as a part of the normal
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# workflow, meaning they wont bitrot and will participate in refactoring etc.
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#
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option(SIMDJSON_FUZZ_LINKMAIN "links a main into fuzz targets for building reproducers" On)
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# For oss-fuzz - insert $LIB_FUZZING_ENGINE into the link flags, but only for
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# the fuzz targets, otherwise the cmake configuration step fails.
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set(SIMDJSON_FUZZ_LDFLAGS "" CACHE STRING "LDFLAGS for the fuzz targets")
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add_custom_target(print_all_fuzz_targets
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COMMAND ${CMAKE_COMMAND} -E echo ${SOURCES}
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)
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# Fuzzer build flags and libraries
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add_library(simdjson-fuzzer INTERFACE)
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if (SIMDJSON_FUZZ_LINKMAIN)
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target_link_libraries(simdjson-fuzzer INTERFACE simdjson-source)
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target_sources(simdjson-fuzzer INTERFACE $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}>/main.cpp)
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else ()
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target_link_libraries(simdjson-fuzzer INTERFACE simdjson)
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endif ()
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target_link_libraries(simdjson-fuzzer INTERFACE simdjson-internal-flags)
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target_link_libraries(simdjson-fuzzer INTERFACE ${SIMDJSON_FUZZ_LDFLAGS})
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# Define the fuzzers
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add_custom_target(all_fuzzers)
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function(implement_fuzzer name)
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add_executable(${name} ${name}.cpp)
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target_link_libraries(${name} PRIVATE simdjson-fuzzer)
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add_dependencies(all_fuzzers ${name})
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add_test(${name} ${name})
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set_property(TEST ${name} APPEND PROPERTY LABELS fuzz)
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endfunction()
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implement_fuzzer(fuzz_parser)
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implement_fuzzer(fuzz_minify)
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implement_fuzzer(fuzz_dump)
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implement_fuzzer(fuzz_print_json)
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implement_fuzzer(fuzz_dump_raw_tape)
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endif()
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