<div dir="ltr">Afternoon,<div><br></div><div>I had an issue with trying to link a program with the DataFlowSanitizer functionality, this is from the libFuzzer project, and I was seeing:</div><div><br></div><div><div style="font-size:13px">clang++ -fsanitize=address -fsanitize-coverage=edge test_fuzzer.cc Fuzzer*.o</div><div style="font-size:13px"><br></div><div style="font-size:13px">Undefined symbols for architecture x86_64:</div><div style="font-size:13px"><br></div><div style="font-size:13px">  "_dfsan_create_label", referenced from:</div><div style="font-size:13px"><br></div><div style="font-size:13px">      fuzzer::TraceState::DFSanCmpCallback(unsigned long, unsigned long, unsigned long, unsigned long long, unsigned long long, unsigned short, unsigned short) in FuzzerTraceState.o</div><div style="font-size:13px"><br></div><div style="font-size:13px">      fuzzer::Fuzzer::InitializeTraceState() in FuzzerTraceState.o</div><div style="font-size:13px"><br></div><div style="font-size:13px">  "_dfsan_get_label_info", referenced from:</div><div style="font-size:13px"><br></div><div style="font-size:13px">      fuzzer::TraceState::GetLabelRange(unsigned short) in FuzzerTraceState.o</div><div style="font-size:13px"><br></div></div><div style="font-size:13px">  .....</div><div><br></div><div>But then looking at the docs: <a href="https://urldefense.proofpoint.com/v2/url?u=http-3A__clang.llvm.org_docs_DataFlowSanitizer.html&d=AwMFaQ&c=8hUWFZcy2Z-Za5rBPlktOQ&r=Mfk2qtn1LTDThVkh6-oGglNfMADXfJdty4_bhmuhMHA&m=DuYBrpgYwv8YGoYjC8o5HfU49LwQXqvyVTXIABWvtTE&s=K41EpstDp6NwFwwzmrjj5-HivCd-_5Gt8Jr-Zyc7nxQ&e=">http://clang.llvm.org/docs/DataFlowSanitizer.html</a></div><div><br></div><div>It appears that this is only supported under Linux?  Is that right?  </div><div><br></div><div><br></div></div>