1 /*
   2  * Copyright 2000-2005 Sun Microsystems, Inc.  All Rights Reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.
   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
  20  * CA 95054 USA or visit www.sun.com if you need additional information or
  21  * have any questions.
  22  *
  23  */
  24 
  25 package sun.jvm.hotspot;
  26 
  27 import java.util.*;
  28 import sun.jvm.hotspot.debugger.*;
  29 import sun.jvm.hotspot.types.*;
  30 import sun.jvm.hotspot.types.basic.*;
  31 
  32 /** This class implements the compiler-specific access to the vtbl for
  33     a given C++ type. */
  34 public class HotSpotSolarisVtblAccess extends BasicVtblAccess {
  35 
  36   public HotSpotSolarisVtblAccess(SymbolLookup symbolLookup,
  37                                   String[] jvmLibNames) {
  38     super(symbolLookup, jvmLibNames);
  39   }
  40 
  41   protected String vtblSymbolForType(Type type) {
  42     String demangledSymbol = type.getName() + "::__vtbl";
  43     return mangle(demangledSymbol);
  44   }
  45 
  46   //--------------------------------------------------------------------------------
  47   // Internals only below this point
  48   //
  49 
  50   private String mangle(String symbol) {
  51     String[] parts = symbol.split("::");
  52     StringBuffer mangled = new StringBuffer("__1c");
  53     for (int i = 0; i < parts.length; i++) {
  54       int len = parts[i].length();
  55       if (len >= 26) {
  56         mangled.append((char)('a' + (len / 26)));
  57         len = len % 26;
  58       }
  59       mangled.append((char)('A' + len));
  60       mangled.append(parts[i]);
  61     }
  62     mangled.append("_");
  63     return mangled.toString();
  64   }
  65 }