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...coverage=edge test_fuzzer.cc Fuzzer*.o Undefined symbols for architecture x86_64: "_dfsan_create_label", referenced from: fuzzer::TraceState::DFSanCmpCallback(unsigned long, unsigned long, unsigned long, unsigned long long, unsigned long long, unsigned short, unsigned short) in FuzzerTraceState.o fuzzer::Fuzzer::InitializeTraceState() in FuzzerTraceState.o "_dfsan_get_label_info", referenced from: fuzzer::TraceState::GetLabelRange(unsigned short) in FuzzerTraceState.o "_dfsan_read_label", referenced from: _dfsan_weak_hook_memcmp in FuzzerTrac...

...coverage=edge test_fuzzer.cc Fuzzer*.o Undefined symbols for architecture x86_64: "_dfsan_create_label", referenced from: fuzzer::TraceState::DFSanCmpCallback(unsigned long, unsigned long, unsigned long, unsigned long long, unsigned long long, unsigned short, unsigned short) in FuzzerTraceState.o fuzzer::Fuzzer::InitializeTraceState() in FuzzerTraceState.o "_dfsan_get_label_info", referenced from: fuzzer::TraceState::GetLabelRange(unsigned short) in FuzzerTraceState.o ..... But then looking at the docs: http://clang.llvm.org/docs/DataFlowSanitizer.html It a...

...mbols for architecture x86_64: >> >> "_dfsan_create_label", referenced from: >> >> fuzzer::TraceState::DFSanCmpCallback(unsigned long, unsigned long, >> unsigned long, unsigned long long, unsigned long long, unsigned short, >> unsigned short) in FuzzerTraceState.o >> >> fuzzer::Fuzzer::InitializeTraceState() in FuzzerTraceState.o >> >> "_dfsan_get_label_info", referenced from: >> >> fuzzer::TraceState::GetLabelRange(unsigned short) in >> FuzzerTraceState.o >> >> ..... >>...

...gt; "_dfsan_create_label", referenced from: >> >> >> >> fuzzer::TraceState::DFSanCmpCallback(unsigned long, unsigned >> long, >> >> unsigned long, unsigned long long, unsigned long long, unsigned short, >> >> unsigned short) in FuzzerTraceState.o >> >> >> >> fuzzer::Fuzzer::InitializeTraceState() in FuzzerTraceState.o >> >> >> >> "_dfsan_get_label_info", referenced from: >> >> >> >> fuzzer::TraceState::GetLabelRange(unsigned short) in >>...

Hi there. I’m trying to use LibFuzzer on OSX and face some issues: I checked out LibFuzzer documentation[1] and managed to proceed until the final step of the first example. Now I see linker errors related to dfsan, dfsan’s documentation[2] states explicitly “DataFlowSanitizer is a work in progress, currently under development for x86_64 Linux.”. Does it mean that LibFuzzer available only on

...n, dfsan’s documentation[2] states >> explicitly “DataFlowSanitizer is a work in progress, currently under >> development for x86_64 Linux.”. >> > > Yes, libFuzzer does not build on OSX today. > Marshall (CC-ed) has managed to make it work with a couple of #ifdefs > in FuzzerTraceState.cpp. > > I'll try to commit such patches later this week, but I don't have a Mac so > it will be harder for me to test. > If anyone wants it quicker -- patches are welcome. > I would also appreciate if someone can set up a build bot for libFuzzer on > Mac :) > (similar...