1 files changed, 16 insertions, 0 deletions
diff --git a/lib/Driver/ToolChains/CommonArgs.cpp b/lib/Driver/ToolChains/CommonArgs.cpp
index 93b66eb6954a3..5e360f62e21ab 100644
--- a/lib/Driver/ToolChains/CommonArgs.cpp
+++ b/lib/Driver/ToolChains/CommonArgs.cpp
@@ -577,6 +577,17 @@ collectSanitizerRuntimes(const ToolChain &TC, const ArgList &Args,
     StaticRuntimes.push_back("esan");
 }
 
+static void addLibFuzzerRuntime(const ToolChain &TC,
+                                const ArgList &Args,
+                                ArgStringList &CmdArgs) {
+    StringRef ParentDir = llvm::sys::path::parent_path(TC.getDriver().InstalledDir);
+    SmallString<128> P(ParentDir);
+    llvm::sys::path::append(P, "lib", "libLLVMFuzzer.a");
+    CmdArgs.push_back(Args.MakeArgString(P));
+    TC.AddCXXStdlibLibArgs(Args, CmdArgs);
+}
+
+
 // Should be called before we add system libraries (C++ ABI, libstdc++/libc++,
 // C runtime, etc). Returns true if sanitizer system deps need to be linked in.
 bool tools::addSanitizerRuntimes(const ToolChain &TC, const ArgList &Args,
@@ -586,6 +597,11 @@ bool tools::addSanitizerRuntimes(const ToolChain &TC, const ArgList &Args,
   collectSanitizerRuntimes(TC, Args, SharedRuntimes, StaticRuntimes,
                            NonWholeStaticRuntimes, HelperStaticRuntimes,
                            RequiredSymbols);
+  // Inject libfuzzer dependencies.
+  if (TC.getSanitizerArgs().needsFuzzer()) {
+    addLibFuzzerRuntime(TC, Args, CmdArgs);
+  }
+
   for (auto RT : SharedRuntimes)
     addSanitizerRuntime(TC, Args, CmdArgs, RT, true, false);
   for (auto RT : HelperStaticRuntimes)