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.*; 28 import sun.jvm.hotspot.types.*; 29 import sun.jvm.hotspot.types.basic.*; 30 31 public class BsdVtblAccess extends BasicVtblAccess { 32 private String vt; 33 BsdVtblAccess(SymbolLookup symbolLookup, String[] dllNames)34 public BsdVtblAccess(SymbolLookup symbolLookup, 35 String[] dllNames) { 36 super(symbolLookup, dllNames); 37 boolean oldVT = false; 38 boolean isDarwin = dllNames[0].lastIndexOf(".dylib") != -1; 39 String vtJavaThread = isDarwin ? "_vt_10JavaThread" : "__vt_10JavaThread"; 40 for (String dllName : dllNames) { 41 if (symbolLookup.lookup(dllName, vtJavaThread) != null) { 42 oldVT = true; 43 break; 44 } 45 } 46 if (oldVT) { 47 // old C++ ABI 48 vt = isDarwin ? "_vt_" : "__vt_"; 49 } else { 50 // new C++ ABI 51 vt = "_ZTV"; 52 } 53 } 54 vtblSymbolForType(Type type)55 protected String vtblSymbolForType(Type type) { 56 return vt + type.getName().length() + type; 57 } 58 } 59