libFuzzer support for QuickJS
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Build QuickJS with libFuzzer support as follows:
CONFIG_CLANG=y make libfuzzer
This can be extended with sanitizer support to improve efficacy:
CONFIG_CLANG=y CONFIG_ASAN=y make libfuzzer
Currently, there are three fuzzing targets defined: fuzz_eval, fuzz_compile and fuzz_regexp.
The above build command will produce an executable binary for each of them, which can be
simply executed as:
./fuzz_eval
or with an initial corpus:
./fuzz_compile corpus_dir/
or with a predefined dictionary to improve its efficacy:
./fuzz_eval -dict fuzz/fuzz.dict
or with arbitrary CLI arguments provided by libFuzzer (https://llvm.org/docs/LibFuzzer.html).