--- old/src/share/vm/memory/heap.hpp	2016-11-03 14:16:40.000000000 -0700
+++ new/src/share/vm/memory/heap.hpp	2016-11-03 14:16:40.000000000 -0700
@@ -82,7 +82,7 @@
 class CodeHeap : public CHeapObj<mtCode> {
   friend class VMStructs;
   friend class PregeneratedCodeHeap;
- private:
+ protected:
   VirtualSpace _memory;                          // the memory holding the blocks
   VirtualSpace _segmap;                          // the memory holding the segment map
 
@@ -156,6 +156,7 @@
 
   virtual bool  contains(const void* p) const    { return low_boundary() <= p && p < high(); }
   virtual void* find_start(void* p)     const;   // returns the block containing p or NULL
+  virtual CodeBlob* find_blob_unsafe(void* start) const;
   size_t alignment_unit()       const;           // alignment of any block
   size_t alignment_offset()     const;           // offset of first byte of any block, within the enclosing alignment unit
   static size_t header_size();                   // returns the header size for each heap block