Mercurial > hg > truffle
annotate agent/src/share/classes/sun/jvm/hotspot/types/basic/BasicVtblAccess.java @ 17524:89152779163c
Merge with jdk8-b132
| author | Gilles Duboscq <duboscq@ssw.jku.at> |
|---|---|
| date | Wed, 15 Oct 2014 11:59:32 +0200 |
| parents | c18cbe5936b8 |
| children |
| rev | line source |
|---|---|
| 0 | 1 /* |
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2 * Copyright (c) 2002, 2005, Oracle and/or its affiliates. All rights reserved. |
| 0 | 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 * | |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
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20 * or visit www.oracle.com if you need additional information or have any |
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6941466: Oracle rebranding changes for Hotspot repositories
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21 * questions. |
| 0 | 22 * |
| 23 */ | |
| 24 | |
| 25 package sun.jvm.hotspot.types.basic; | |
| 26 | |
| 27 import java.util.*; | |
| 28 | |
| 29 import sun.jvm.hotspot.debugger.*; | |
| 30 import sun.jvm.hotspot.types.*; | |
| 31 | |
| 32 public abstract class BasicVtblAccess implements VtblAccess { | |
| 33 protected SymbolLookup symbolLookup; | |
| 34 protected String[] dllNames; | |
| 35 | |
| 36 private Map typeToVtblMap = new HashMap(); | |
| 37 | |
| 38 public BasicVtblAccess(SymbolLookup symbolLookup, | |
| 39 String[] dllNames) { | |
| 40 this.symbolLookup = symbolLookup; | |
| 41 this.dllNames = dllNames; | |
| 42 } | |
| 43 | |
| 44 static Object nullAddress = new Object(); | |
| 45 | |
| 46 public Address getVtblForType(Type type) { | |
| 47 if (type == null) { | |
| 48 return null; | |
| 49 } | |
| 50 Object result = typeToVtblMap.get(type); | |
| 51 if (result == nullAddress) { | |
| 52 return null; | |
| 53 } | |
| 54 if (result != null) { | |
| 55 return (Address)result; | |
| 56 } | |
| 57 String vtblSymbol = vtblSymbolForType(type); | |
| 58 if (vtblSymbol == null) { | |
| 59 typeToVtblMap.put(type, nullAddress); | |
| 60 return null; | |
| 61 } | |
| 62 for (int i = 0; i < dllNames.length; i++) { | |
| 63 Address addr = symbolLookup.lookup(dllNames[i], vtblSymbol); | |
| 64 if (addr != null) { | |
| 65 typeToVtblMap.put(type, addr); | |
| 66 return addr; | |
| 67 } | |
| 68 } | |
| 69 typeToVtblMap.put(type, nullAddress); | |
| 70 return null; | |
| 71 } | |
| 72 | |
| 73 public void clearCaches() { | |
| 74 typeToVtblMap.clear(); | |
| 75 } | |
| 76 | |
| 77 protected abstract String vtblSymbolForType(Type type); | |
| 78 } |