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annotate c1x4hotspotsrc/HotSpotVM/src/com/sun/hotspot/c1x/logging/Logger.java @ 1429:abc670a709dc

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* -XX:TraceC1X=0...5 controls the native c1x tracing * -Dc1x.debug=true turns on the logging proxies and lots of log output on the java side * provide more information about types to the compiler (type hierarchy, etc) * provide exception handler tables to the compiler * add exception handlers to the nmethod * correct implementation of ExceptionObject * exception handling/unwinding entry points * modified versions of handle/unwind exception stubs using standard calling conventions * exception throwing * implicit null pointer exception, implicit div by 0 exception * arraystore/classcast/arrayindex exceptions * checkcast implementation * newarray, anewarray, multinewarray implementation * correct new instance initialization * access to java class mirrors (for ldc) * unresolved methods * class resolving - class patching (asssembly prototype copying)
author Lukas Stadler <lukas.stadler@oracle.com>
date Tue, 31 Aug 2010 22:13:30 -0700
parents 760213a60e8b
children 9e5e83ca2259
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 /*
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2 * Copyright (c) 2010 Sun Microsystems, Inc. All rights reserved.
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3 *
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4 * Sun Microsystems, Inc. has intellectual property rights relating to technology embodied in the product that is
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5 * described in this document. In particular, and without limitation, these intellectual property rights may include one
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6 * or more of the U.S. patents listed at http://www.sun.com/patents and one or more additional patents or pending patent
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7 * applications in the U.S. and in other countries.
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8 *
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9 * U.S. Government Rights - Commercial software. Government users are subject to the Sun Microsystems, Inc. standard
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10 * license agreement and applicable provisions of the FAR and its supplements.
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11 *
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12 * Use is subject to license terms. Sun, Sun Microsystems, the Sun logo, Java and Solaris are trademarks or registered
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13 * trademarks of Sun Microsystems, Inc. in the U.S. and other countries. All SPARC trademarks are used under license and
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14 * are trademarks or registered trademarks of SPARC International, Inc. in the U.S. and other countries.
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15 *
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16 * UNIX is a registered trademark in the U.S. and other countries, exclusively licensed through X/Open Company, Ltd.
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17 */
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18 package com.sun.hotspot.c1x.logging;
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19
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20 import java.io.*;
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21 import java.lang.reflect.*;
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22 import java.util.*;
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23
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24 /**
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25 * Scoped logging class used to display the call hierarchy of VMEntries/VMExits calls
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26 *
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27 * @author Lukas Stadler
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28 */
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29 public class Logger {
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30
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31 public static final boolean ENABLED = Boolean.valueOf(System.getProperty("c1x.debug"));
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32 private static final int SPACING = 4;
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33 private static Deque<Boolean> openStack = new LinkedList<Boolean>();
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34 private static boolean open = false;
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35 private static int level = 0;
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36
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37 private final static PrintStream out;
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38
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39 static {
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40 PrintStream ps = null;
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41 String filename = System.getProperty("c1x.info_file");
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42 if (filename != null && !"".equals(filename)) {
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43 try {
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44 ps = new PrintStream(new FileOutputStream(filename));
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45 } catch (FileNotFoundException e) {
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46 e.printStackTrace();
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47 ps = null;
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48 }
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49 }
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50 out = ps;
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51 if (out != null)
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52 out.println("start: " + new Date());
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53 }
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54
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55 public static void info(String message) {
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56 if (ENABLED)
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57 log(message);
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58 else
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59 System.out.println(message);
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60 if (out != null) {
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61 out.println(message);
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62 out.flush();
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63 }
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64 }
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65
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66 public static void log(String message) {
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67 if (ENABLED) {
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68 for (String line : message.split("\n")) {
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69 if (open) {
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70 System.out.println("...");
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71 open = false;
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72 }
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73 System.out.print(space(level));
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74 System.out.println(line);
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75 }
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76 }
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77 }
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78
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79 public static void startScope(String message) {
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80 if (ENABLED) {
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81 if (open) {
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82 System.out.println("...");
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83 open = false;
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84 }
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85 System.out.print(space(level));
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86 System.out.print(message);
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87 openStack.push(open);
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88 open = true;
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89 level++;
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90 }
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91 }
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92
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93 public static void endScope(String message) {
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94 if (ENABLED) {
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95 level--;
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96 if (open)
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97 System.out.println(message);
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98 else
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99 System.out.println(space(level) + "..." + message);
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100 open = openStack.pop();
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101 }
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102 }
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103
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104 private static String[] spaces = new String[50];
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105
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106 private static String space(int count) {
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107 assert count >= 0;
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108 String result;
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109 if (count >= spaces.length || spaces[count] == null) {
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110 StringBuilder str = new StringBuilder();
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111 for (int i = 0; i < count * SPACING; i++)
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112 str.append(' ');
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113 result = str.toString();
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114 if (count < spaces.length)
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115 spaces[count] = result;
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116 } else {
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117 result = spaces[count];
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118 }
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119 return result;
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120 }
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121
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122 public static String pretty(Object value) {
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123 if (value == null) {
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124 return "null";
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125 }
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126
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127 Class<?> klass = value.getClass();
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128 if (value instanceof Void) {
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129 return "void";
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130 } else if (value instanceof String) {
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131 return "\"" + value + "\"";
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132 } else if (value instanceof Method) {
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133 return "method \"" + ((Method) value).getName() + "\"";
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134 } else if (value instanceof Class<?>) {
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135 return "class \"" + ((Class<?>) value).getSimpleName() + "\"";
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136 } else if (value instanceof Integer) {
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137 if ((Integer) value < 10)
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138 return value.toString();
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139 return value + " (0x" + Integer.toHexString((Integer) value) + ")";
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140 } else if (value instanceof Long) {
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141 if ((Long) value < 10)
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142 return value + "l";
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143 return value + "l (0x" + Long.toHexString((Long) value) + "l)";
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144 } else if (klass.isArray()) {
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145 StringBuilder str = new StringBuilder();
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146 int dimensions = 0;
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147 while (klass.isArray()) {
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148 dimensions++;
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149 klass = klass.getComponentType();
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150 }
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151 str.append(klass.getSimpleName()).append('[').append(Array.getLength(value)).append(']');
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152 for (int i = 1; i < dimensions; i++) {
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153 str.append("[]");
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154 }
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155 return str.toString();
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156 }
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157
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158 return value.toString();
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159 }
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160 }