Author: morehouse Date: Tue Aug 28 11:34:32 2018 New Revision: 340860 URL: http://llvm.org/viewvc/llvm-project?rev=340860&view=rev Log: [libFuzzer] Port to Windows
Summary: Port libFuzzer to windows-msvc. This patch allows libFuzzer targets to be built and run on Windows, using -fsanitize=fuzzer and/or fsanitize=fuzzer-no-link. It allows these forms of coverage instrumentation to work on Windows as well. It does not fix all issues, such as those with -fsanitize-coverage=stack-depth, which is not usable on Windows as of this patch. It also does not fix any libFuzzer integration tests. Nearly all of them fail to compile, fixing them will come in a later patch, so libFuzzer tests are disabled on Windows until them. Patch By: metzman Reviewers: morehouse, rnk Reviewed By: morehouse, rnk Subscribers: morehouse, kcc, eraman Differential Revision: https://reviews.llvm.org/D51022 Modified: cfe/trunk/lib/Driver/ToolChains/MSVC.cpp Modified: cfe/trunk/lib/Driver/ToolChains/MSVC.cpp URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Driver/ToolChains/MSVC.cpp?rev=340860&r1=340859&r2=340860&view=diff ============================================================================== --- cfe/trunk/lib/Driver/ToolChains/MSVC.cpp (original) +++ cfe/trunk/lib/Driver/ToolChains/MSVC.cpp Tue Aug 28 11:34:32 2018 @@ -365,6 +365,17 @@ void visualstudio::Linker::ConstructJob( CmdArgs.push_back(Args.MakeArgString(std::string("-implib:") + ImplibName)); } + if (TC.getSanitizerArgs().needsFuzzer()) { + if (!Args.hasArg(options::OPT_shared)) + CmdArgs.push_back( + Args.MakeArgString(std::string("-wholearchive:") + + TC.getCompilerRTArgString(Args, "fuzzer", false))); + CmdArgs.push_back(Args.MakeArgString("-debug")); + // Prevent the linker from padding sections we use for instrumentation + // arrays. + CmdArgs.push_back(Args.MakeArgString("-incremental:no")); + } + if (TC.getSanitizerArgs().needsAsanRt()) { CmdArgs.push_back(Args.MakeArgString("-debug")); CmdArgs.push_back(Args.MakeArgString("-incremental:no")); @@ -1298,6 +1309,8 @@ MSVCToolChain::ComputeEffectiveClangTrip SanitizerMask MSVCToolChain::getSupportedSanitizers() const { SanitizerMask Res = ToolChain::getSupportedSanitizers(); Res |= SanitizerKind::Address; + Res |= SanitizerKind::Fuzzer; + Res |= SanitizerKind::FuzzerNoLink; Res &= ~SanitizerKind::CFIMFCall; return Res; } _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org http://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
