src/jdk.hotspot.agent/share/classes/sun/jvm/hotspot/tools/PStack.java

*** 128,142 ****
--- 128,151 ----
                           // look for known code blobs
                           CodeCache c = VM.getVM().getCodeCache();
                           if (c.contains(pc)) {
                              CodeBlob cb = c.findBlobUnsafe(pc);
                              if (cb.isNMethod()) {
+                                if (cb.isNativeMethod()) {
+                                   out.print(((CompiledMethod)cb).getMethod().externalNameAndSignature());
+                                   long diff = pc.minus(cb.codeBegin());
+                                   if (diff != 0L) {
+                                     out.print(" + 0x" + Long.toHexString(diff));
+                                   }
+                                   out.println(" (Native method)");
+                                } else {
                                    names = getJavaNames(th, f.localVariableBase());
                                    // just print compiled code, if can't determine method
                                    if (names == null || names.length == 0) {
                                      out.println("<Unknown compiled code>");
                                    }
+                                }
                              } else if (cb.isBufferBlob()) {
                                 out.println("<StubRoutines>");
                              } else if (cb.isRuntimeStub()) {
                                 out.println("<RuntimeStub>");
                              } else if (cb.isDeoptimizationStub()) {