1 /*

     2  * Copyright (c) 2002, 2013, 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 sun.jvm.hotspot.debugger.SymbolLookup;

    28 import sun.jvm.hotspot.types.Type;

    29 import sun.jvm.hotspot.types.basic.BasicVtblAccess;

    30 

    31 public class LinuxVtblAccess extends BasicVtblAccess {

    32   private String vt;

    33 

    34   public LinuxVtblAccess(SymbolLookup symbolLookup,

    35                          String[] dllNames) {

    36     super(symbolLookup, dllNames);

    37 

    38     if (symbolLookup.lookup("libjvm.so", "__vt_10JavaThread") != null) {

    39        // old C++ ABI

    40        vt = "__vt_";

    41     } else {

    42        // new C++ ABI

    43        vt = "_ZTV";

    44     }

    45   }

    46 

    47   protected String vtblSymbolForType(Type type) {

    48     return vt + type.getName().length() + type;

    49   }

    50 }