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1 /*
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2 * Copyright (c) 2002, 2013, Oracle and/or its affiliates. All rights reserved.
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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4 *
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5 * This code is free software; you can redistribute it and/or modify it
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6 * under the terms of the GNU General Public License version 2 only, as
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7 * published by the Free Software Foundation.
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8 *
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9 * This code is distributed in the hope that it will be useful, but WITHOUT
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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12 * version 2 for more details (a copy is included in the LICENSE file that
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13 * accompanied this code).
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14 *
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15 * You should have received a copy of the GNU General Public License version
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16 * 2 along with this work; if not, write to the Free Software Foundation,
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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18 *
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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20 * or visit www.oracle.com if you need additional information or have any
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21 * questions.
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22 *
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23 */
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24
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25 package sun.jvm.hotspot;
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26
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27 import sun.jvm.hotspot.debugger.*;
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28 import sun.jvm.hotspot.types.*;
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29 import sun.jvm.hotspot.types.basic.*;
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30
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31 public class BsdVtblAccess extends BasicVtblAccess {
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32 private String vt;
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33
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34 public BsdVtblAccess(SymbolLookup symbolLookup,
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35 String[] dllNames) {
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36 super(symbolLookup, dllNames);
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37 boolean oldVT = false;
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38 boolean isDarwin = dllNames[0].lastIndexOf(".dylib") != -1;
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39 String vtJavaThread = isDarwin ? "_vt_10JavaThread" : "__vt_10JavaThread";
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40 for (String dllName : dllNames) {
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41 if (symbolLookup.lookup(dllName, vtJavaThread) != null) {
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42 oldVT = true;
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43 break;
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44 }
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45 }
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46 if (oldVT) {
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47 // old C++ ABI
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48 vt = isDarwin ? "_vt_" : "__vt_";
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49 } else {
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50 // new C++ ABI
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51 vt = "_ZTV";
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52 }
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53 }
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54
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55 protected String vtblSymbolForType(Type type) {
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56 return vt + type.getName().length() + type;
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57 }
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58 }
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