--- a/hotspot/src/share/vm/code/codeBlob.hpp	Tue Jun 30 15:26:20 2015 -0700
+++ b/hotspot/src/share/vm/code/codeBlob.hpp	Wed Jul 01 10:53:26 2015 +0200
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 1998, 2013, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1998, 2015, 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
@@ -38,7 +38,8 @@
     MethodProfiled      = 1,    // Execution level 2 and 3 (profiled) nmethods
     NonNMethod          = 2,    // Non-nmethods like Buffers, Adapters and Runtime Stubs
     All                 = 3,    // All types (No code cache segmentation)
-    NumTypes            = 4     // Number of CodeBlobTypes
+    Pregenerated        = 4,    // Special blobs, managed by CodeCacheExtensions
+    NumTypes            = 5     // Number of CodeBlobTypes
   };
 };
 
@@ -63,6 +64,7 @@
 class CodeBlob VALUE_OBJ_CLASS_SPEC {
 
   friend class VMStructs;
+  friend class CodeCacheDumper;
 
  private:
   const char* _name;
@@ -206,6 +208,14 @@
   void set_strings(CodeStrings& strings) {
     _strings.assign(strings);
   }
+
+  static ByteSize name_field_offset() {
+    return byte_offset_of(CodeBlob, _name);
+  }
+
+  static ByteSize oop_maps_field_offset() {
+    return byte_offset_of(CodeBlob, _oop_maps);
+  }
 };
 
 class WhiteBox;