Author: morehouse Date: Tue Aug 29 12:48:12 2017 New Revision: 312026 URL: http://llvm.org/viewvc/llvm-project?rev=312026&view=rev Log: [SanitizeCoverage] Enable stack-depth coverage for -fsanitize=fuzzer
Summary: - Don't sanitize __sancov_lowest_stack. - Don't instrument leaf functions. - Add CoverageStackDepth to Fuzzer and FuzzerNoLink. - Disable stack depth tracking on Mac. Reviewers: vitalybuka, kcc, george.karpenkov Reviewed By: kcc Subscribers: kubamracek, cfe-commits, llvm-commits, hiraditya Differential Revision: https://reviews.llvm.org/D37156 Modified: cfe/trunk/lib/Driver/SanitizerArgs.cpp Modified: cfe/trunk/lib/Driver/SanitizerArgs.cpp URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Driver/SanitizerArgs.cpp?rev=312026&r1=312025&r2=312026&view=diff ============================================================================== --- cfe/trunk/lib/Driver/SanitizerArgs.cpp (original) +++ cfe/trunk/lib/Driver/SanitizerArgs.cpp Tue Aug 29 12:48:12 2017 @@ -291,9 +291,13 @@ SanitizerArgs::SanitizerArgs(const ToolC Add |= FuzzerNoLink; // Enable coverage if the fuzzing flag is set. - if (Add & FuzzerNoLink) + if (Add & FuzzerNoLink) { CoverageFeatures |= CoverageTracePCGuard | CoverageIndirCall | CoverageTraceCmp | CoveragePCTable; + // Due to TLS differences, stack depth tracking is disabled on Mac. + if (!TC.getTriple().isOSDarwin()) + CoverageFeatures |= CoverageStackDepth; + } Kinds |= Add; } else if (Arg->getOption().matches(options::OPT_fno_sanitize_EQ)) { _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org http://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits