3939
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1 /*
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2 * Copyright (c) 2011, 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 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.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 abstract class ProfileData {
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35 // This is a pointer to a section of profiling data.
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36 private DataLayout _data;
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37
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38 public DataLayout data() { return _data; }
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39
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40 // How many cells are in this?
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41 public abstract int cellCount();
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42
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43
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44 // Return the size of this data.
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45 public int sizeInBytes() {
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46 return DataLayout.computeSizeInBytes(cellCount());
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47 }
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48
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49 public int dp() {
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50 return data().dp();
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51 }
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52
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53 // Low-level accessors for underlying data
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54 int intptrAt(int index) {
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55 //assert(0 <= index && index < cellCount(), "oob");
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56 return data().cellAt(index);
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57 }
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58 int intAt(int index) {
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59 return (int)intptrAt(index);
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60 }
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61 int uintAt(int index) {
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62 return (int)intptrAt(index);
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63 }
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64 Oop oopAt(int index) {
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65 return data().oopAt(index);
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66 }
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67
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68 public Address addressAt(int index) {
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69 return data().addressAt(index);
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70 }
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71
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72 boolean flagAt(int flagNumber) {
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73 return data().flagAt(flagNumber);
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74 }
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75
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76 // two convenient imports for use by subclasses:
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77 public static int cellOffset(int index) {
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78 return DataLayout.cellOffset(index);
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79 }
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80
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81 public ProfileData(DataLayout data) {
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82 _data = data;
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83 }
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84
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85 // Constructor for invalid ProfileData.
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86 ProfileData() {
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87 _data = null;
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88 }
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89
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90 int bci() {
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91 return data().bci();
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92 }
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93
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94 int trapState() {
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95 return data().trapState();
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96 }
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97 public abstract void printDataOn(PrintStream st);
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98
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99 void tab(PrintStream st) {
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100 st.print("\t");
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101 }
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102
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103 void printShared(PrintStream st, String name) {
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104 st.print("bci: " + bci());
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105 // st.fillTo(tabWidthOne);
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106 st.print(" " + name + " ");
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107 tab(st);
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108 int trap = trapState();
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109 if (trap != 0) {
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110 st.print("trap(" + MethodData.formatTrapState(trap) + ") ");
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111 }
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112 int flags = data().flags();
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113 if (flags != 0)
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114 st.print("flags(" + flags + ") ");
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115 }
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116
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117 public String toString() {
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118 ByteArrayOutputStream baos = new ByteArrayOutputStream();
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119 PrintStream ps = new PrintStream(baos);
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120 try {
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121 printDataOn(ps);
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122 } finally {
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123 ps.close();
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124 }
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125 return baos.toString();
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126 }
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127 }
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