--- old/src/share/vm/utilities/elfFile.hpp	Fri Nov  4 09:51:10 2011
+++ new/src/share/vm/utilities/elfFile.hpp	Fri Nov  4 09:51:09 2011
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 1997, 2010, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1997, 2011, 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
@@ -22,8 +22,8 @@
  *
  */
 
-#ifndef __ELF_FILE_HPP
-#define __ELF_FILE_HPP
+#ifndef SHARE_VM_UTILITIES_ELF_FILE_HPP
+#define SHARE_VM_UTILITIES_ELF_FILE_HPP
 
 #if !defined(_WINDOWS) && !defined(__APPLE__)
 
@@ -83,12 +83,12 @@
 // part of code to be very defensive, and bait out if anything went wrong.
 
 class ElfFile: public CHeapObj {
-  friend class Decoder;
+  friend class ElfDecoder;
  public:
   ElfFile(const char* filepath);
   ~ElfFile();
 
-  const char* decode(address addr, int* offset);
+  bool decode(address addr, char* buf, int buflen, int* offset);
   const char* filepath() {
     return m_filepath;
   }
@@ -99,7 +99,7 @@
     return (m_filepath && !strcmp(filepath, m_filepath));
   }
 
-  Decoder::decoder_status get_status() {
+  NullDecoder::decoder_status get_status() {
     return m_status;
   }
 
@@ -119,8 +119,9 @@
   // return a string table at specified section index
   ElfStringTable* get_string_table(int index);
 
-  // look up an address and return the nearest symbol
-  const char* look_up(Elf_Shdr shdr, address addr, int* offset);
+protected:
+   ElfFile*  next() const { return m_next; }
+   void set_next(ElfFile* file) { m_next = file; }
 
  protected:
     ElfFile*         m_next;
@@ -131,17 +132,17 @@
   FILE* m_file;
 
   // Elf header
-  Elf_Ehdr            m_elfHdr;
+  Elf_Ehdr                     m_elfHdr;
 
   // symbol tables
-  ElfSymbolTable*     m_symbol_tables;
+  ElfSymbolTable*              m_symbol_tables;
 
   // string tables
-  ElfStringTable*     m_string_tables;
+  ElfStringTable*              m_string_tables;
 
-  Decoder::decoder_status  m_status;
+  NullDecoder::decoder_status  m_status;
 };
 
 #endif // _WINDOWS
 
-#endif // __ELF_FILE_HPP
+#endif // SHARE_VM_UTILITIES_ELF_FILE_HPP