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annotate agent/src/share/classes/sun/jvm/hotspot/code/ObjectValue.java @ 1563:1a5913bf5e19

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6951083: oops and relocations should part of nmethod not CodeBlob Summary: This moves the oops from Codeblob to nmethod. Reviewed-by: kvn, never
author twisti
date Thu, 20 May 2010 06:34:23 -0700
parents b109e761e927
children c18cbe5936b8
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 /*
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2 * Copyright 2009 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
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20 * CA 95054 USA or visit www.sun.com if you need additional information or
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21 * have any 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.code;
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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
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30 import sun.jvm.hotspot.debugger.*;
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31 import sun.jvm.hotspot.utilities.*;
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32
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33 /** An ObjectValue describes an object eliminated by escape analysis. */
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34
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35 public class ObjectValue extends ScopeValue {
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36 private int id;
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37 private ScopeValue klass;
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38 private List fieldsValue; // ArrayList<ScopeValue>
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39
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40 // Field "boolean visited" is not implemented here since
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41 // it is used only a during debug info creation.
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42
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43 public ObjectValue(int id) {
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44 this.id = id;
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45 klass = null;
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46 fieldsValue = new ArrayList();
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47 }
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48
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49 public boolean isObject() { return true; }
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50 public int id() { return id; }
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51 public ScopeValue getKlass() { return klass; }
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52 public List getFieldsValue() { return fieldsValue; }
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53 public ScopeValue getFieldAt(int i) { return (ScopeValue)fieldsValue.get(i); }
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54 public int fieldsSize() { return fieldsValue.size(); }
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55
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56 // Field "value" is always NULL here since it is used
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57 // only during deoptimization of a compiled frame
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58 // pointing to reallocated object.
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59 public OopHandle getValue() { return null; }
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60
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61 /** Serialization of debugging information */
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62
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63 void readObject(DebugInfoReadStream stream) {
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64 klass = readFrom(stream);
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65 Assert.that(klass.isConstantOop(), "should be constant klass oop");
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66 int length = stream.readInt();
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67 for (int i = 0; i < length; i++) {
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68 ScopeValue val = readFrom(stream);
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69 fieldsValue.add(val);
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70 }
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71 }
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72
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73 // Printing
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74
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75 public void print() {
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76 printOn(System.out);
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77 }
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78
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79 public void printOn(PrintStream tty) {
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80 tty.print("scalarObj[" + id + "]");
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81 }
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82
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83 void printFieldsOn(PrintStream tty) {
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84 if (fieldsValue.size() > 0) {
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85 ((ScopeValue)fieldsValue.get(0)).printOn(tty);
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86 }
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87 for (int i = 1; i < fieldsValue.size(); i++) {
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88 tty.print(", ");
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89 ((ScopeValue)fieldsValue.get(i)).printOn(tty);
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90 }
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91 }
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92
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93 };