Mercurial > hg > truffle
annotate agent/src/share/classes/sun/jvm/hotspot/oops/InstanceMirrorKlass.java @ 18665:96861e3f8cc5
made CFGPrinterObserver reset (upon close) properly
author | Doug Simon <doug.simon@oracle.com> |
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date | Thu, 11 Dec 2014 22:14:30 +0100 |
parents | aed758eda82a |
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1 /* |
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2 * Copyright (c) 2011, 2012, 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.oops; |
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26 |
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27 import java.io.*; |
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28 import java.util.*; |
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29 import sun.jvm.hotspot.debugger.*; |
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30 import sun.jvm.hotspot.memory.*; |
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31 import sun.jvm.hotspot.runtime.*; |
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32 import sun.jvm.hotspot.types.*; |
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33 import sun.jvm.hotspot.utilities.*; |
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34 |
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35 // An InstanceKlass is the VM level representation of a Java class. |
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36 |
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37 public class InstanceMirrorKlass extends InstanceKlass { |
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38 static { |
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39 VM.registerVMInitializedObserver(new Observer() { |
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40 public void update(Observable o, Object data) { |
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41 initialize(VM.getVM().getTypeDataBase()); |
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42 } |
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43 }); |
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44 } |
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45 |
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46 private static synchronized void initialize(TypeDataBase db) throws WrongTypeException { |
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47 // Just make sure it's there for now |
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48 Type type = db.lookupType("InstanceMirrorKlass"); |
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49 } |
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50 |
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51 public InstanceMirrorKlass(Address addr) { |
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52 super(addr); |
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53 } |
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54 |
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55 public long getObjectSize(Oop o) { |
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56 return java_lang_Class.getOopSize(o) * VM.getVM().getAddressSize(); |
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57 } |
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58 |
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59 public void iterateNonStaticFields(OopVisitor visitor, Oop obj) { |
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60 super.iterateNonStaticFields(visitor, obj); |
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61 // Fetch the real klass from the mirror object |
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62 Klass klass = java_lang_Class.asKlass(obj); |
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63 if (klass instanceof InstanceKlass) { |
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64 ((InstanceKlass)klass).iterateStaticFields(visitor); |
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65 } |
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66 } |
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67 } |