Mercurial > hg > truffle
annotate agent/src/share/classes/sun/jvm/hotspot/oops/MethodCounters.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 | 89152779163c |
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rev | line source |
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1 /* |
17524 | 2 * Copyright (c) 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.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.runtime.*; |
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31 import sun.jvm.hotspot.types.*; |
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32 import sun.jvm.hotspot.utilities.*; |
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33 |
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34 public class MethodCounters extends Metadata { |
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35 public MethodCounters(Address addr) { |
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36 super(addr); |
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37 } |
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38 |
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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 Type type = db.lookupType("MethodCounters"); |
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49 |
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50 interpreterInvocationCountField = new CIntField(type.getCIntegerField("_interpreter_invocation_count"), 0); |
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51 interpreterThrowoutCountField = new CIntField(type.getCIntegerField("_interpreter_throwout_count"), 0); |
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52 if (!VM.getVM().isCore()) { |
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53 invocationCounter = new CIntField(type.getCIntegerField("_invocation_counter"), 0); |
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54 backedgeCounter = new CIntField(type.getCIntegerField("_backedge_counter"), 0); |
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55 } |
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56 } |
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57 |
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58 private static CIntField interpreterInvocationCountField; |
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59 private static CIntField interpreterThrowoutCountField; |
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60 private static CIntField invocationCounter; |
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61 private static CIntField backedgeCounter; |
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62 |
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63 public int interpreterInvocationCount() { |
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64 return (int) interpreterInvocationCountField.getValue(this); |
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65 } |
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66 |
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67 public int interpreterThrowoutCount() { |
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68 return (int) interpreterThrowoutCountField.getValue(this); |
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69 } |
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70 public long getInvocationCounter() { |
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71 if (Assert.ASSERTS_ENABLED) { |
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72 Assert.that(!VM.getVM().isCore(), "must not be used in core build"); |
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73 } |
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74 return invocationCounter.getValue(this); |
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75 } |
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76 public long getBackedgeCounter() { |
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77 if (Assert.ASSERTS_ENABLED) { |
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78 Assert.that(!VM.getVM().isCore(), "must not be used in core build"); |
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79 } |
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80 return backedgeCounter.getValue(this); |
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81 } |
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82 |
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83 public void printValueOn(PrintStream tty) { |
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84 } |
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85 } |
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86 |