Mercurial > hg > graal-jvmci-8
annotate agent/src/share/classes/sun/jvm/hotspot/utilities/MethodArray.java @ 24234:ea6f94ab283b default tip
Added tag jvmci-0.36 for changeset 8128b98d4736
author | Gilles Duboscq <gilles.m.duboscq@oracle.com> |
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date | Mon, 18 Sep 2017 18:49:45 +0200 |
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1 /* |
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2 * Copyright (c) 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.utilities; |
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26 |
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27 import java.util.Observable; |
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28 import java.util.Observer; |
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29 |
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30 import sun.jvm.hotspot.debugger.Address; |
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31 import sun.jvm.hotspot.oops.Metadata; |
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32 import sun.jvm.hotspot.oops.Method; |
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33 import sun.jvm.hotspot.runtime.VM; |
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34 import sun.jvm.hotspot.types.Type; |
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35 import sun.jvm.hotspot.types.TypeDataBase; |
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36 import sun.jvm.hotspot.types.WrongTypeException; |
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37 |
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38 public class MethodArray extends GenericArray { |
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39 static { |
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40 VM.registerVMInitializedObserver(new Observer() { |
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41 public void update(Observable o, Object data) { |
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42 initialize(VM.getVM().getTypeDataBase()); |
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43 } |
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44 }); |
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45 } |
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46 |
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47 private static synchronized void initialize(TypeDataBase db) throws WrongTypeException { |
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48 elemType = db.lookupType("Method*"); |
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49 |
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50 Type type = db.lookupType("Array<Method*>"); |
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51 dataFieldOffset = type.getAddressField("_data").getOffset(); |
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52 } |
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53 |
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54 private static long dataFieldOffset; |
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55 protected static Type elemType; |
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56 |
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57 public MethodArray(Address addr) { |
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58 super(addr, dataFieldOffset); |
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59 } |
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60 |
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61 public Method at(int i) { |
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62 return (Method) Metadata.instantiateWrapperFor(getAddressAt(i)); |
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63 } |
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64 |
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65 public Type getElemType() { |
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66 return elemType; |
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67 } |
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68 } |