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1   /*
2    * Copyright (c) 2000, 2005, Oracle and/or its affiliates. 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20   * or visit www.oracle.com if you need additional information or have any
21   * 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  }