Index: clang/lib/Driver/ToolChains/CommonArgs.cpp
===================================================================
--- clang/lib/Driver/ToolChains/CommonArgs.cpp
+++ clang/lib/Driver/ToolChains/CommonArgs.cpp
@@ -713,7 +713,8 @@
   return !StaticRuntimes.empty() || !NonWholeStaticRuntimes.empty();
 }
 
-bool tools::addXRayRuntime(const ToolChain&TC, const ArgList &Args, ArgStringList &CmdArgs) {
+bool tools::addXRayRuntime(const ToolChain &TC, const ArgList &Args,
+                           ArgStringList &CmdArgs) {
   if (Args.hasArg(options::OPT_shared))
     return false;
 
@@ -723,6 +724,11 @@
     for (const auto &Mode : TC.getXRayArgs().modeList())
       CmdArgs.push_back(TC.getCompilerRTArgString(Args, Mode, false));
     CmdArgs.push_back("-no-whole-archive");
+
+    // If we're linking a non-C++ application, we'd need to link in the C++
+    // runtime.
+    if (!Args.hasArg(clang::driver::options::OPT_nostdlibxx))
+      TC.AddCXXStdlibLibArgs(Args, CmdArgs);
     return true;
   }
 
Index: compiler-rt/test/xray/TestCases/Posix/c-test.cc
===================================================================
--- /dev/null
+++ compiler-rt/test/xray/TestCases/Posix/c-test.cc
@@ -0,0 +1,4 @@
+// RUN: %clang_xray -g -o %t %s
+// REQUIRES: x86_64-target-arch
+// REQUIRES: built-in-llvm-tree
+int main() {}