--- old/src/os_cpu/linux_x86/vm/thread_linux_x86.cpp	2013-06-05 10:55:37.000000000 +0200
+++ new/src/os_cpu/linux_x86/vm/thread_linux_x86.cpp	2013-06-05 10:55:37.000000000 +0200
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2003, 2013, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -32,8 +32,15 @@
   void* ucontext, bool isInJava) {
 
   assert(Thread::current() == this, "caller must be current thread");
-  assert(this->is_Java_thread(), "must be JavaThread");
+  return pd_get_top_frame(fr_addr, ucontext, isInJava);
+}
 
+bool JavaThread::pd_get_top_frame_for_profiling(frame* fr_addr, void* ucontext, bool isInJava) {
+  return pd_get_top_frame(fr_addr, ucontext, isInJava);
+}
+
+bool JavaThread::pd_get_top_frame(frame* fr_addr, void* ucontext, bool isInJava) {
+  assert(this->is_Java_thread(), "must be JavaThread");
   JavaThread* jt = (JavaThread *)this;
 
   // If we have a last_Java_frame, then we should use it even if