--- old/src/hotspot/share/interpreter/interpreterRuntime.hpp	2018-03-09 14:33:45.000000000 +0000
+++ new/src/hotspot/share/interpreter/interpreterRuntime.hpp	2018-03-09 14:33:45.000000000 +0000
@@ -37,6 +37,12 @@
 // The InterpreterRuntime is called by the interpreter for everything
 // that cannot/should not be dealt with in assembly and needs C support.
 
+struct FrameInfo {
+  address pc;
+  address fp;
+  address sp;
+};
+
 class InterpreterRuntime: AllStatic {
   friend class BytecodeClosure; // for method and bcp
   friend class PrintingClosure; // for method and bcp
@@ -169,6 +175,12 @@
   // Safepoints
   static void    at_safepoint(JavaThread* thread);
 
+  // Continuation
+  static void freeze(JavaThread* thread, FrameInfo* fi, oop context);
+  static void pop_and_thaw0(JavaThread* thread, FrameInfo* fi, int num_frames, bool pop);
+  static void pop_and_thaw(JavaThread* thread, FrameInfo* fi, int num_frames);
+  static void thaw(JavaThread* thread, FrameInfo* fi, int num_frames);
+
   // Debugger support
   static void post_field_access(JavaThread *thread, oopDesc* obj,
     ConstantPoolCacheEntry *cp_entry);