0
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1 /*
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2 * Copyright 2004-2007 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 // shorter names for SA packages
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26
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27
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28 // SA package name abbreviations are kept in 'sapkg' object
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29 // to avoid global namespace pollution
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30 var sapkg = new Object();
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31
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32 sapkg.hotspot = Packages.sun.jvm.hotspot;
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33 sapkg.asm = sapkg.hotspot.asm;
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34 sapkg.bugspot = sapkg.hotspot.bugspot;
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35 sapkg.c1 = sapkg.hotspot.c1;
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36 sapkg.code = sapkg.hotspot.code;
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37 sapkg.compiler = sapkg.hotspot.compiler;
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38
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39 // 'debugger' is a JavaScript keyword :-(
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40 // sapkg.debugger = sapkg.hotspot.debugger;
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41
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42 sapkg.interpreter = sapkg.hotspot.interpreter;
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43 sapkg.livejvm = sapkg.hotspot.livejvm;
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44 sapkg.jdi = sapkg.hotspot.jdi;
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45 sapkg.memory = sapkg.hotspot.memory;
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46 sapkg.oops = sapkg.hotspot.oops;
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47 sapkg.runtime = sapkg.hotspot.runtime;
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48 sapkg.tools = sapkg.hotspot.tools;
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49 sapkg.types = sapkg.hotspot.types;
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50 sapkg.ui = sapkg.hotspot.ui;
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51 sapkg.utilities = sapkg.hotspot.utilities;
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52
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53 // SA singletons are kept in 'sa' object
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54 var sa = new Object();
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55 sa.vm = sapkg.runtime.VM.getVM();
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56 sa.dbg = sa.vm.getDebugger();
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57 sa.cdbg = sa.dbg.CDebugger;
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58 sa.heap = sa.vm.universe.heap();
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59 sa.systemDictionary = sa.vm.systemDictionary;
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60 sa.sysDict = sa.systemDictionary;
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61 sa.symbolTable = sa.vm.symbolTable;
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62 sa.symTbl = sa.symbolTable;
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63 sa.threads = sa.vm.threads;
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64 sa.interpreter = sa.vm.interpreter;
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65 sa.typedb = sa.vm.typeDataBase;
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66 sa.codeCache = sa.vm.codeCache;
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67 // 'objHeap' is different from 'heap'!.
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68 // This is SA's Oop factory and heap-walker
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69 sa.objHeap = sa.vm.objectHeap;
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70
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71 // few useful global variables
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72 var OS = sa.vm.OS;
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73 var CPU = sa.vm.CPU;
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74 var LP64 = sa.vm.LP64;
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75 var isClient = sa.vm.clientCompiler;
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76 var isServer = sa.vm.serverCompiler;
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77 var isCore = sa.vm.isCore();
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78 var addressSize = sa.vm.addressSize;
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79 var oopSize = sa.vm.oopSize;
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80
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81 // this "main" function is called immediately
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82 // after loading this script file
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83 function main(globals, jvmarg) {
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84 // wrap a sun.jvm.hotspot.utilities.soql.ScriptObject
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85 // object so that the properties of it can be accessed
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86 // in natural object.field syntax.
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87 function wrapScriptObject(so) {
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88 function unwrapScriptObject(wso) {
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89 var objType = typeof(wso);
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90 if ((objType == 'object' ||
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91 objType == 'function')
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92 && "__wrapped__" in wso) {
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93 return wso.__wrapped__;
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94 } else {
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95 return wso;
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96 }
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97 }
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98
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99 function prepareArgsArray(array) {
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100 var args = new Array(array.length);
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101 for (var a = 0; a < array.length; a++) {
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102 var elem = array[a];
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103 elem = unwrapScriptObject(elem);
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104 if (typeof(elem) == 'function') {
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105 args[a] = new sapkg.utilities.soql.Callable() {
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106 call: function(myargs) {
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107 var tmp = new Array(myargs.length);
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108 for (var i = 0; i < myargs.length; i++) {
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109 tmp[i] = wrapScriptObject(myargs[i]);
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110 }
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111 return elem.apply(this, tmp);
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112 }
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113 }
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114 } else {
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115 args[a] = elem;
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116 }
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117 }
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118 return args;
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119 }
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120
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121 if (so instanceof sapkg.utilities.soql.ScriptObject) {
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122 return new JSAdapter() {
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123 __getIds__: function() {
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124 return so.getIds();
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125 },
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126
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127 __has__ : function(name) {
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128 if (typeof(name) == 'number') {
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129 return so["has(int)"](name);
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130 } else {
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131 if (name == '__wrapped__') {
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132 return true;
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133 } else if (so["has(java.lang.String)"](name)) {
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134 return true;
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135 } else if (name.equals('toString')) {
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136 return true;
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137 } else {
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138 return false;
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139 }
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140 }
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141 },
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142
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143 __delete__ : function(name) {
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144 if (typeof(name) == 'number') {
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145 return so["delete(int)"](name);
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146 } else {
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147 return so["delete(java.lang.String)"](name);
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148 }
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149 },
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150
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151 __get__ : function(name) {
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152 if (! this.__has__(name)) {
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153 return undefined;
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154 }
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155 if (typeof(name) == 'number') {
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156 return wrapScriptObject(so["get(int)"](name));
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157 } else {
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158 if (name == '__wrapped__') {
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159 return so;
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160 } else {
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161 var value = so["get(java.lang.String)"](name);
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162 if (value instanceof sapkg.utilities.soql.Callable) {
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163 return function() {
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164 var args = prepareArgsArray(arguments);
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165 var r;
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166 try {
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167 r = value.call(args);
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168 } catch (e) {
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169 println("call to " + name + " failed!");
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170 throw e;
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171 }
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172 return wrapScriptObject(r);
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173 }
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174 } else if (name == 'toString') {
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175 return function() {
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176 return so.toString();
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177 }
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178 } else {
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179 return wrapScriptObject(value);
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180 }
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181 }
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182 }
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183 }
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184 };
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185 } else {
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186 return so;
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187 }
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188 }
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189
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190 // set "jvm" global variable that wraps a
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191 // sun.jvm.hotspot.utilities.soql.JSJavaVM instance
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192 if (jvmarg != null) {
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193 jvm = wrapScriptObject(jvmarg);
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194 // expose "heap" global variable
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195 heap = jvm.heap;
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196 }
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197
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198 // expose all "function" type properties of
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199 // sun.jvm.hotspot.utilitites.soql.JSJavaScriptEngine
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200 // as global functions here.
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201 globals = wrapScriptObject(globals);
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202 for (var prop in globals) {
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203 if (typeof(globals[prop]) == 'function') {
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204 this[prop] = globals[prop];
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205 }
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206 }
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207
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208 // define "writeln" and "write" if not defined
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209 if (typeof(writeln) == 'undefined') {
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210 writeln = println;
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211 }
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212
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213 if (typeof(write) == 'undefined') {
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214 write = print;
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215 }
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216
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217 // "registerCommand" function is defined if we
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218 // are running as part of "CLHSDB" tool. CLHSDB
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219 // tool exposes Unix-style commands.
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220
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221 // if "registerCommand" function is defined
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222 // then register few global functions as "commands".
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223 if (typeof(registerCommand) == 'function') {
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224 this.printDis = function(addr, len) {
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225 if (!addr) {
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226 writeln("Usage: dis address [ length ]");
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227 } else {
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228 dis(addr, len);
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229 }
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230 }
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231 registerCommand("dis", "dis address [ length ]", "printDis");
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232
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233 this.jclass = function(name) {
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234 if (typeof(name) == "string") {
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235 var clazz = sapkg.utilities.SystemDictionaryHelper.findInstanceKlass(name);
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236 if (clazz) {
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237 writeln(clazz.getName().asString() + " @" + clazz.getHandle().toString());
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238 } else {
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239 writeln("class not found: " + name);
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240 }
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241 } else {
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242 writeln("Usage: class name");
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243 }
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244 }
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245 registerCommand("class", "class name", "jclass");
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246
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247 this.jclasses = function() {
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248 forEachKlass(function (clazz) {
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249 writeln(clazz.getName().asString() + " @" + clazz.getHandle().toString());
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250 });
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251 }
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252 registerCommand("classes", "classes", "jclasses");
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253
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254 this.printJDis = function(addr) {
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255 if (!addr) {
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256 writeln("Usage: jdis address");
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257 } else {
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258 jdis(addr);
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259 }
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260 }
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261 registerCommand("jdis", "jdis address", "printJDis");
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262
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263 this.dclass = function(clazz, dir) {
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264 if (!clazz) {
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265 writeln("Usage: dumpclass { address | name } [ directory ]");
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266 } else {
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267 if (!dir) { dir = "."; }
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268 dumpClass(clazz, dir);
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269 }
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270 }
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271 registerCommand("dumpclass", "dumpclass { address | name } [ directory ]", "dclass");
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272 registerCommand("dumpheap", "dumpheap [ file ]", "dumpHeap");
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273
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274 this.jseval = function(str) {
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275 if (!str) {
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276 writeln("Usage: jseval script");
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277 } else {
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278 var res = eval(str);
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279 if (res) { writeln(res); }
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280 }
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281 }
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282 registerCommand("jseval", "jseval script", "jseval");
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283
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284 this.jsload = function(file) {
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285 if (!file) {
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286 writeln("Usage: jsload file");
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287 } else {
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288 load(file);
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289 }
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290 }
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291 registerCommand("jsload", "jsload file", "jsload");
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292
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293 this.printMem = function(addr, len) {
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294 if (!addr) {
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295 writeln("Usage: mem [ length ]");
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296 } else {
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297 mem(addr, len);
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298 }
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299 }
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300 registerCommand("mem", "mem address [ length ]", "printMem");
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301
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302 this.sysProps = function() {
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303 for (var i in jvm.sysProps) {
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304 writeln(i + ' = ' + jvm.sysProps[i]);
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305 }
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306 }
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307 registerCommand("sysprops", "sysprops", "sysProps");
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308
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309 this.printWhatis = function(addr) {
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310 if (!addr) {
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311 writeln("Usage: whatis address");
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312 } else {
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313 writeln(whatis(addr));
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314 }
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315 }
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316 registerCommand("whatis", "whatis address", "printWhatis");
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317 }
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318 }
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319
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320 // debugger functionality
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321
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322 // string-to-Address
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323 function str2addr(str) {
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324 return sa.dbg.parseAddress(str);
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325 }
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326
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327 // number-to-Address
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328 if (addressSize == 4) {
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329 eval("function num2addr(num) { \
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330 return str2addr('0x' + java.lang.Integer.toHexString(0xffffffff & num)); \
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331 }");
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332 } else {
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333 eval("function num2addr(num) { \
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334 return str2addr('0x' + java.lang.Long.toHexString(num)); \
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335 }");
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336 }
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337
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338 // generic any-type-to-Address
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339 // use this convenience function to accept address in any
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340 // format -- number, string or an Address instance.
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341 function any2addr(addr) {
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342 var type = typeof(addr);
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343 if (type == 'number') {
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344 return num2addr(addr);
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345 } else if (type == 'string') {
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346 return str2addr(addr);
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347 } else {
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348 return addr;
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349 }
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350 }
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351
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352 // Address-to-string
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353 function addr2str(addr) {
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354 if (addr == null) {
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355 return (addressSize == 4)? '0x00000000' : '0x0000000000000000';
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356 } else {
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357 return addr + '';
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358 }
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359 }
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360
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361 // Address-to-number
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362 function addr2num(addr) {
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363 return sa.dbg.getAddressValue(addr);
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364 }
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365
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366 // symbol-to-Address
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367 function sym2addr(dso, sym) {
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368 return sa.dbg.lookup(dso, sym);
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369 }
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370
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371 // returns the ClosestSymbol or null
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372 function closestSymbolFor(addr) {
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373 if (sa.cdbg == null) {
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374 // no CDebugger support, return null
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375 return null;
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376 } else {
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377 var dso = sa.cdbg.loadObjectContainingPC(addr);
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378 if (dso != null) {
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379 return dso.closestSymbolToPC(addr);
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380 } else {
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381 return null;
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382 }
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383 }
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384 }
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385
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386 // Address-to-symbol
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387 // returns nearest symbol as string if found
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388 // else returns address as string
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389 function addr2sym(addr) {
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390 var sym = closestSymbolFor(addr);
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391 if (sym != null) {
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392 return sym.name + '+' + sym.offset;
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393 } else {
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394 return addr2str(addr);
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395 }
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396 }
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397
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398 // read 'num' bytes at 'addr' and return an array as result.
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399 // returns Java byte[] type result and not a JavaScript array.
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400 function readBytesAt(addr, num) {
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401 addr = any2addr(addr);
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402 var res = java.lang.reflect.Array.newInstance(java.lang.Byte.TYPE, num);
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403 var i;
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404 for (i = 0; i < num; i++) {
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405 res[i] = addr.getJByteAt(i);
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406 }
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407 return res;
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408 }
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409
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410 // read 'num' words at 'addr' and return an array as result.
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411 // returns Java long[] type result and not a JavaScript array.
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412 function readWordsAt(addr, num) {
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413 addr = any2addr(addr);
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414 var res = java.lang.reflect.Array.newInstance(java.lang.Long.TYPE, num);
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415 var i;
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416 for (i = 0; i < num; i++) {
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417 res[i] = addr2num(addr.getAddressAt(i * addressSize));
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418 }
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419 return res;
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420 }
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421
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422 // read the 'C' string at 'addr'
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423 function readCStrAt(addr) {
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424 addr = any2addr(addr);
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425 return sapkg.utilities.CStringUtilities.getString(addr);
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426 }
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427
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428 // read the length of the 'C' string at 'addr'
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429 function readCStrLen(addr) {
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430 addr = any2addr(addr);
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431 return sapkg.utilities.CStringUtilities.getStringLength(addr);
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432 }
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433
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434 // iterate through ThreadList of CDebugger
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435 function forEachThread(callback) {
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436 if (sa.cdbg == null) {
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437 // no CDebugger support
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438 return;
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439 } else {
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440 var itr = sa.cdbg.threadList.iterator();
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441 while (itr.hasNext()) {
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442 if (callback(itr.next()) == false) return;
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443 }
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444 }
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445 }
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446
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447 // read register set of a ThreadProxy as name-value pairs
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448 function readRegs(threadProxy) {
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449 var ctx = threadProxy.context;
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450 var num = ctx.numRegisters;
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451 var res = new Object();
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452 var i;
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453 for (i = 0; i < num; i++) {
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454 res[ctx.getRegisterName(i)]= addr2str(ctx.getRegisterAsAddress(i));
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455 }
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456 return res;
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457 }
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458
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459 // print register set for a given ThreaProxy
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460 function regs(threadProxy) {
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461 var res = readRegs(threadProxy);
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462 for (i in res) {
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463 writeln(i, '=', res[i]);
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464 }
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465 }
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466
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467 // iterate through each CFrame of a given ThreadProxy
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468 function forEachCFrame(threadProxy, callback) {
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469 if (sa.cdbg == null) {
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470 // no CDebugger support
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471 return;
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472 } else {
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473 var cframe = sa.cdbg.topFrameForThread(threadProxy);
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474 while (cframe != null) {
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475 if (callback(cframe) == false) return;
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476 cframe = cframe.sender();
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477 }
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478 }
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479 }
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480
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481 // iterate through list of load objects (DLLs, DSOs)
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482 function forEachLoadObject(callback) {
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483 if (sa.cdbg == null) {
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484 // no CDebugger support
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485 return;
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486 } else {
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487 var itr = sa.cdbg.loadObjectList.iterator();
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488 while (itr.hasNext()) {
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489 if (callback(itr.next()) == false) return;
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490 }
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491 }
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492 }
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493
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494 // print 'num' words at 'addr'
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495 function mem(addr, num) {
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496 if (num == undefined) {
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497 num = 1;
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498 }
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499 addr = any2addr(addr);
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500 var i;
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501 for (i = 0; i < num; i++) {
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502 var value = addr.getAddressAt(0);
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503 writeln(addr2sym(addr) + ':', addr2str(value));
|
|
504 addr = addr.addOffsetTo(addressSize);
|
|
505 }
|
|
506 writeln();
|
|
507 }
|
|
508
|
|
509 // return the disassemble class for current CPU
|
|
510 function disassemblerClass() {
|
|
511 var DisAsmClass;
|
|
512 if (CPU == 'x86') {
|
|
513 DisAsmClass = sapkg.asm.x86.X86Disassembler;
|
|
514 } else if (CPU == 'sparc') {
|
|
515 DisAsmClass = sapkg.asm.sparc.SPARCV9Disassembler;
|
|
516 }
|
|
517 return DisAsmClass;
|
|
518 }
|
|
519
|
|
520 // print native code disassembly of 'num' bytes at 'addr'
|
|
521 function dis(addr, num) {
|
|
522 addr = any2addr(addr);
|
|
523 var nmethod = findNMethod(addr);
|
|
524 if (nmethod != null) {
|
|
525 // disassemble it as nmethod
|
|
526 nmethoddis(nmethod);
|
|
527 } else {
|
|
528 // raw disassembly
|
|
529 if (num == undefined) {
|
|
530 // size of one SPARC instruction and
|
|
531 // unknown number of Intel instructions.
|
|
532 num = 4;
|
|
533 }
|
|
534 DisAsmClass = disassemblerClass();
|
|
535 if (DisAsmClass == undefined) {
|
|
536 // unsupported CPU
|
|
537 writeln(CPU + " is not yet supported!");
|
|
538 return;
|
|
539 }
|
|
540
|
|
541 var bytes = readBytesAt(addr, num);
|
|
542 var disAsm = new DisAsmClass(addr2num(addr), bytes);
|
|
543 disAsm.decode(new sapkg.asm.InstructionVisitor() {
|
|
544 visit: function (pc, instr) {
|
|
545 write(addr2sym(num2addr(pc)) + ':', '\t');
|
|
546 writeln(instr.asString(pc,
|
|
547 new sapkg.asm.SymbolFinder() {
|
|
548 getSymbolFor: function(addr) {
|
|
549 return addr2sym(num2addr(addr));
|
|
550 }
|
|
551 }));
|
|
552 }
|
|
553 });
|
|
554 }
|
|
555 }
|
|
556
|
|
557 // System dictionary functions
|
|
558
|
|
559 // find InstanceKlass by name
|
|
560 function findInstanceKlass(name) {
|
|
561 return sapkg.utilities.SystemDictionaryHelper.findInstanceKlass(name);
|
|
562 }
|
|
563
|
|
564 // get Java system loader (i.e., application launcher loader)
|
|
565 function systemLoader() {
|
|
566 return sa.sysDict.javaSystemLoader();
|
|
567 }
|
|
568
|
|
569 // iterate system dictionary for each 'Klass'
|
|
570 function forEachKlass(callback) {
|
|
571 var VisitorClass = sapkg.memory.SystemDictionary.ClassVisitor;
|
|
572 var visitor = new VisitorClass() { visit: callback };
|
|
573 sa.sysDict["classesDo(sun.jvm.hotspot.memory.SystemDictionary$ClassVisitor)"](visitor);
|
|
574 }
|
|
575
|
|
576 // iterate system dictionary for each 'Klass' and initiating loader
|
|
577 function forEachKlassAndLoader(callback) {
|
|
578 var VisitorClass = sapkg.memory.SystemDictionary.ClassAndLoaderVisitor;
|
|
579 var visitor = new VisitorClass() { visit: callback };
|
|
580 sa.sysDict["classesDo(sun.jvm.hotspot.memory.SystemDictionary$ClassAndLoaderVisitor)"](visitor);
|
|
581 }
|
|
582
|
|
583 // iterate system dictionary for each primitive array klass
|
|
584 function forEachPrimArrayKlass(callback) {
|
|
585 var VisitorClass = sapkg.memory.SystemDictionary.ClassAndLoaderVisitor;
|
|
586 sa.sysDict.primArrayClassesDo(new VisitorClass() { visit: callback });
|
|
587 }
|
|
588
|
|
589 // (hotspot) symbol table functions
|
|
590
|
|
591 // String-to-Symbol
|
|
592 function str2sym(str) {
|
|
593 return sa.symTbl.probe(str);
|
|
594 }
|
|
595
|
|
596 // Symbol-to-String
|
|
597 function sym2str(sym) {
|
|
598 return sym.asString();
|
|
599 }
|
|
600
|
|
601 // oop functions
|
|
602
|
|
603 // Address-to-Oop
|
|
604 function addr2oop(addr) {
|
|
605 addr = any2addr(addr);
|
|
606 return sa.objHeap.newOop(addr.addOffsetToAsOopHandle(0));
|
|
607 }
|
|
608
|
|
609 // Oop-to-Address
|
|
610 function oop2addr(oop) {
|
|
611 return oop.handle;
|
|
612 }
|
|
613
|
|
614 // 'oop' to higher-level java object wrapper in which for(i in o)
|
|
615 // works by iterating java level fields and javaobject.javafield
|
|
616 // syntax works.
|
|
617 function oop2obj(oop) {
|
|
618 return object(addr2str(oop.handle));
|
|
619 }
|
|
620
|
|
621 // higher level java object wrapper to oop
|
|
622 function obj2oop(obj) {
|
|
623 return addr2oop(str2addr(address(obj)));
|
|
624 }
|
|
625
|
|
626 // Java heap iteration
|
|
627
|
|
628 // iterates Java heap for each Oop
|
|
629 function forEachOop(callback) {
|
|
630 sa.objHeap.iterate(new sapkg.oops.HeapVisitor() { doObj: callback });
|
|
631 }
|
|
632
|
|
633 // iterates Java heap for each Oop of given 'klass'.
|
|
634 // 'includeSubtypes' tells whether to include objects
|
|
635 // of subtypes of 'klass' or not
|
|
636 function forEachOopOfKlass(callback, klass, includeSubtypes) {
|
|
637 if (klass == undefined) {
|
|
638 klass = findInstanceKlass("java.lang.Object");
|
|
639 }
|
|
640
|
|
641 if (includeSubtypes == undefined) {
|
|
642 includeSubtypes = true;
|
|
643 }
|
|
644 sa.objHeap.iterateObjectsOfKlass(
|
|
645 new sapkg.oops.HeapVisitor() { doObj: callback },
|
|
646 klass, includeSubtypes);
|
|
647 }
|
|
648
|
|
649 // code cache functions
|
|
650
|
|
651 // iterates CodeCache for each 'CodeBlob'
|
|
652 function forEachCodeBlob(callback) {
|
|
653 var VisitorClass = sapkg.code.CodeCacheVisitor;
|
|
654 sa.codeCache.iterate(new VisitorClass() { visit: callback });
|
|
655 }
|
|
656
|
|
657 // find the ClodBlob (if any) that contains given address
|
|
658 function findCodeBlob(addr) {
|
|
659 addr = any2addr(addr);
|
|
660 return sa.codeCache.findBlobUnsafe(addr);
|
|
661 }
|
|
662
|
|
663 // find the NMethod (if any) that contains given address
|
|
664 function findNMethod(addr) {
|
|
665 var codeBlob = findCodeBlob(addr);
|
|
666 return (codeBlob != null && codeBlob.isNMethod())? codeBlob : null;
|
|
667 }
|
|
668
|
|
669 // returns PcDesc at given address or null
|
|
670 function pcDescAt(addr) {
|
|
671 addr = any2addr(addr);
|
|
672 var nmethod = findNMethod(addr);
|
|
673 return (nmethod != null)? nmethod.safepoints.get(addr) : null;
|
|
674 }
|
|
675
|
|
676 // helpers for nmethod disassembler
|
|
677 function printScope(scopeDesc) {
|
|
678 if (scopeDesc == null) {
|
|
679 return;
|
|
680 }
|
|
681 printScope(scopeDesc.sender());
|
|
682 var method = scopeDesc.method;
|
|
683 var bci = scopeDesc.BCI;
|
|
684 var line = -1;
|
|
685 if (method.hasLineNumberTable()) {
|
|
686 line = method.getLineNumberFromBCI(bci);
|
|
687 }
|
|
688
|
|
689 write('\t', method.externalNameAndSignature(), '@', method.handle, 'bci=' + bci);
|
|
690 if (line != -1) {
|
|
691 write('line=' + line);
|
|
692 }
|
|
693 writeln();
|
|
694 }
|
|
695
|
|
696 function printSafepointInfo(nmethod, pcDesc) {
|
|
697 var scopeDesc = nmethod.getScopeDescAt(
|
|
698 pcDesc.getRealPC(nmethod),
|
|
699 pcDesc.isAtCall());
|
|
700 printScope(scopeDesc);
|
|
701 }
|
|
702
|
|
703 // print disassembly for a given nmethod
|
|
704 function nmethoddis(nmethod) {
|
|
705 var DisAsmClass = disassemblerClass();
|
|
706 if (DisAsmClass == undefined) {
|
|
707 writeln(CPU + " is not yet supported!");
|
|
708 return;
|
|
709 }
|
|
710
|
|
711 var method = nmethod.method;
|
|
712 writeln('NMethod:', method.externalNameAndSignature(), '@', method.handle);
|
|
713
|
|
714 var codeBegin = nmethod.codeBegin();
|
|
715 var codeEnd = nmethod.codeEnd();
|
|
716 var size = codeEnd.minus(codeBegin);
|
|
717 var code = readBytesAt(codeBegin, size);
|
|
718 var startPc = addr2num(codeBegin);
|
|
719 var verifiedEntryPoint = addr2num(nmethod.verifiedEntryPoint);
|
|
720 var entryPoint = addr2num(nmethod.entryPoint);
|
|
721 var interpreterEntryPoint = addr2num(nmethod.interpreterEntryPointOrNull);
|
|
722 var safepoints = nmethod.safepoints;
|
|
723 var disAsm = new DisAsmClass(startPc, code);
|
|
724 disAsm.decode(new sapkg.asm.InstructionVisitor() {
|
|
725 visit: function(curPc, instr) {
|
|
726 if (curPc == verifiedEntryPoint) {
|
|
727 writeln();
|
|
728 writeln("Verified Entry Point:");
|
|
729 }
|
|
730 if (curPc == entryPoint) {
|
|
731 writeln();
|
|
732 writeln("Entry Point:");
|
|
733 }
|
|
734 if (curPc == interpreterEntryPoint) {
|
|
735 writeln("");
|
|
736 writeln("Interpreter Entry Point:");
|
|
737 }
|
|
738
|
|
739 var pcDesc = safepoints.get(num2addr(curPc));
|
|
740 var isSafepoint = (pcDesc != null);
|
|
741 if (isSafepoint && pcDesc.isAtCall()) {
|
|
742 printSafepointInfo(nmethod, pcDesc);
|
|
743 }
|
|
744
|
|
745 write(num2addr(curPc) + ':', '\t');
|
|
746 writeln(instr.asString(curPc,
|
|
747 new sapkg.asm.SymbolFinder() {
|
|
748 getSymbolFor: function(addr) {
|
|
749 return addr2sym(num2addr(addr));
|
|
750 }
|
|
751 }));
|
|
752
|
|
753 if (isSafepoint && !pcDesc.isAtCall()) {
|
|
754 printSafepointInfo(nmethod, pcDesc);
|
|
755 }
|
|
756 }
|
|
757 });
|
|
758 }
|
|
759
|
|
760 // bytecode interpreter functions
|
|
761
|
|
762 // iterates interpreter codelets for each interpreter codelet
|
|
763 function forEachInterpCodelet(callback) {
|
|
764 var stubQueue = sa.interpreter.code;
|
|
765 var stub = stubQueue.first;
|
|
766 while (stub != null) {
|
|
767 if (callback(stub) == false) return;
|
|
768 stub = stubQueue.getNext(stub);
|
|
769 }
|
|
770 }
|
|
771
|
|
772 // helper for bytecode disassembler
|
|
773 function printExceptionTable(method) {
|
|
774 var expTbl = method.getExceptionTable();
|
|
775 var len = expTbl.getLength();
|
|
776 if (len != 0) {
|
|
777 var i;
|
|
778 var cpool = method.constants;
|
|
779 writeln("start", '\t', "end", '\t', "handler", '\t', "exception");
|
|
780 writeln("");
|
|
781 for (i = 0; i < len; i += 4) {
|
|
782 write(expTbl.getIntAt(i), '\t',
|
|
783 expTbl.getIntAt(i + 1), '\t',
|
|
784 expTbl.getIntAt(i + 2), '\t');
|
|
785 var cpIndex = expTbl.getIntAt(i + 3);
|
|
786 var oop = (cpIndex == 0)? null : cpool.getObjAt(cpIndex);
|
|
787 if (oop == null) {
|
|
788 writeln("<any>");
|
|
789 } else if (oop.isSymbol()) {
|
|
790 writeln(oop.asString().replace('/', '.'));
|
|
791 } else if (oop.isKlass()) {
|
|
792 writeln(oop.name.asString().replace('/', '.'));
|
|
793 } else {
|
|
794 writeln(cpIndex);
|
|
795 }
|
|
796 }
|
|
797 }
|
|
798 }
|
|
799
|
|
800 // print Java bytecode disassembly
|
|
801 function jdis(method) {
|
|
802 if (method.getByteCode == undefined) {
|
|
803 // method oop may be specified by address
|
|
804 method = addr2oop(any2addr(method));
|
|
805 }
|
|
806 writeln(method, '-', method.externalNameAndSignature());
|
|
807 if (method.isNative()) {
|
|
808 writeln("native method");
|
|
809 return;
|
|
810 }
|
|
811 if (method.isAbstract()) {
|
|
812 writeln("abstract method");
|
|
813 return;
|
|
814 }
|
|
815
|
|
816 writeln();
|
|
817 var BytecodeDisAsmClass = sapkg.interpreter.BytecodeDisassembler;
|
|
818 var disAsm = new BytecodeDisAsmClass(method);
|
|
819 var bci = 0;
|
|
820 var hasLines = method.hasLineNumberTable();
|
|
821 if (hasLines) {
|
|
822 writeln("bci", '\t', "line", '\t', "instruction");
|
|
823 } else {
|
|
824 writeln("bci", '\t', "instruction");
|
|
825 }
|
|
826 writeln("");
|
|
827 disAsm.decode(new sapkg.interpreter.BytecodeVisitor() {
|
|
828 visit: function(bytecode) {
|
|
829 if (hasLines) {
|
|
830 var line = method.getLineNumberFromBCI(bci);
|
|
831 writeln(bci, '\t', line, '\t', bytecode);
|
|
832 } else {
|
|
833 writeln(bci, '\t', bytecode);
|
|
834 }
|
|
835 bci++;
|
|
836 }
|
|
837 });
|
|
838
|
|
839 writeln();
|
|
840 printExceptionTable(method);
|
|
841 }
|
|
842
|
|
843 // Java thread
|
|
844
|
|
845 // iterates each Thread
|
|
846 function forEachJavaThread(callback) {
|
|
847 var threads = sa.threads;
|
|
848 var thread = threads.first();
|
|
849 while (thread != null) {
|
|
850 if (callback(thread) == false) return;
|
|
851 thread = thread.next();
|
|
852 }
|
|
853 }
|
|
854
|
|
855 // iterate Frames of a given thread
|
|
856 function forEachFrame(javaThread, callback) {
|
|
857 var fr = javaThread.getLastFrameDbg();
|
|
858 while (fr != null) {
|
|
859 if (callback(fr) == false) return;
|
|
860 fr = fr.sender();
|
|
861 }
|
|
862 }
|
|
863
|
|
864 // iterate JavaVFrames of a given JavaThread
|
|
865 function forEachVFrame(javaThread, callback) {
|
|
866 var vfr = javaThread.getLastJavaVFrameDbg();
|
|
867 while (vfr != null) {
|
|
868 if (callback(vfr) == false) return;
|
|
869 vfr = vfr.javaSender();
|
|
870 }
|
|
871 }
|
|
872
|
|
873 function printStackTrace(javaThread) {
|
|
874 write("Thread ");
|
|
875 javaThread.printThreadIDOn(java.lang.System.out);
|
|
876 writeln();
|
|
877 forEachVFrame(javaThread, function (vf) {
|
|
878 var method = vf.method;
|
|
879 write(' - ', method.externalNameAndSignature(), '@bci =', vf.getBCI());
|
|
880 var line = method.getLineNumberFromBCI(vf.getBCI());
|
|
881 if (line != -1) { write(', line=', line); }
|
|
882 if (vf.isCompiledFrame()) { write(" (Compiled Frame)"); }
|
|
883 if (vf.isInterpretedFrame()) { write(" (Interpreted Frame)"); }
|
|
884 writeln();
|
|
885 });
|
|
886 writeln();
|
|
887 writeln();
|
|
888 }
|
|
889
|
|
890 // print Java stack trace for all threads
|
|
891 function where(javaThread) {
|
|
892 if (javaThread == undefined) {
|
|
893 forEachJavaThread(function (jt) { printStackTrace(jt); });
|
|
894 } else {
|
|
895 printStackTrace(javaThread);
|
|
896 }
|
|
897 }
|
|
898
|
|
899 // vmStructs access -- type database functions
|
|
900
|
|
901 // find a VM type
|
|
902 function findVMType(typeName) {
|
|
903 return sa.typedb.lookupType(typeName);
|
|
904 }
|
|
905
|
|
906 // iterate VM types
|
|
907 function forEachVMType(callback) {
|
|
908 var itr = sa.typedb.types;
|
|
909 while (itr.hasNext()) {
|
|
910 if (callback(itr.next()) == false) return;
|
|
911 }
|
|
912 }
|
|
913
|
|
914 // find VM int constant
|
|
915 function findVMIntConst(name) {
|
|
916 return sa.typedb.lookupIntConstant(name);
|
|
917 }
|
|
918
|
|
919 // find VM long constant
|
|
920 function findVMLongConst(name) {
|
|
921 return sa.typedb.lookupLongConstant(name);
|
|
922 }
|
|
923
|
|
924 // iterate VM int constants
|
|
925 function forEachVMIntConst(callback) {
|
|
926 var itr = sa.typedb.intConstants;
|
|
927 while (itr.hasNext()) {
|
|
928 if (callback(itr.next()) == false) return;
|
|
929 }
|
|
930 }
|
|
931
|
|
932 // iterate VM long constants
|
|
933 function forEachVMLongConst(callback) {
|
|
934 var itr = sa.typedb.longConstants;
|
|
935 while (itr.hasNext()) {
|
|
936 if (callback(itr.next()) == false) return;
|
|
937 }
|
|
938 }
|
|
939
|
|
940 // returns VM Type at address
|
|
941 function vmTypeof(addr) {
|
|
942 addr = any2addr(addr);
|
|
943 return sa.typedb.guessTypeForAddress(addr);
|
|
944 }
|
|
945
|
|
946 // does the given 'addr' points to an object of given 'type'?
|
|
947 // OR any valid Type at all (if type is undefined)
|
|
948 function isOfVMType(addr, type) {
|
|
949 addr = any2addr(addr);
|
|
950 if (type == undefined) {
|
|
951 return vmTypeof(addr) != null;
|
|
952 } else {
|
|
953 if (typeof(type) == 'string') {
|
|
954 type = findVMType(type);
|
|
955 }
|
|
956 return sa.typedb.addressTypeIsEqualToType(addr, type);
|
|
957 }
|
|
958 }
|
|
959
|
|
960 // reads static field value
|
|
961 function readVMStaticField(field) {
|
|
962 var type = field.type;
|
|
963 if (type.isCIntegerType() || type.isJavaPrimitiveType()) {
|
|
964 return field.value;
|
|
965 } else if (type.isPointerType()) {
|
|
966 return field.address;
|
|
967 } else if (type.isOopType()) {
|
|
968 return field.oopHandle;
|
|
969 } else {
|
|
970 return field.staticFieldAddress;
|
|
971 }
|
|
972 }
|
|
973
|
|
974 // reads given instance field of VM object at 'addr'
|
|
975 function readVMInstanceField(field, addr) {
|
|
976 var type = field.type;
|
|
977 if (type.isCIntegerType() || type.isJavaPrimitiveType()) {
|
|
978 return field.getValue(addr);
|
|
979 } else if (type.isPointerType()) {
|
|
980 return field.getAddress(addr);
|
|
981 } else if (type.isOopType()) {
|
|
982 return field.getOopHandle(addr);
|
|
983 } else {
|
|
984 return addr.addOffsetTo(field.offset);
|
|
985 }
|
|
986 }
|
|
987
|
|
988 // returns name-value of pairs of VM type at given address.
|
|
989 // If address is unspecified, reads static fields as name-value pairs.
|
|
990 function readVMType(type, addr) {
|
|
991 if (typeof(type) == 'string') {
|
|
992 type = findVMType(type);
|
|
993 }
|
|
994 if (addr != undefined) {
|
|
995 addr = any2addr(addr);
|
|
996 }
|
|
997
|
|
998 var result = new Object();
|
|
999 var staticOnly = (addr == undefined);
|
|
1000 while (type != null) {
|
|
1001 var itr = type.fields;
|
|
1002 while (itr.hasNext()) {
|
|
1003 var field = itr.next();
|
|
1004 var isStatic = field.isStatic();
|
|
1005 if (staticOnly && isStatic) {
|
|
1006 result[field.name] = readVMStaticField(field);
|
|
1007 } else if (!staticOnly && !isStatic) {
|
|
1008 result[field.name] = readVMInstanceField(field, addr);
|
|
1009 }
|
|
1010 }
|
|
1011 type = type.superclass;
|
|
1012 }
|
|
1013 return result;
|
|
1014 }
|
|
1015
|
|
1016 function printVMType(type, addr) {
|
|
1017 if (typeof(type) == 'string') {
|
|
1018 type = findVMType(type);
|
|
1019 }
|
|
1020 var obj = readVMType(type, addr);
|
|
1021 while (type != null) {
|
|
1022 var itr = type.fields;
|
|
1023 while (itr.hasNext()) {
|
|
1024 var field = itr.next();
|
|
1025 var name = field.name;
|
|
1026 var value = obj[name];
|
|
1027 if (value != undefined) {
|
|
1028 writeln(field.type.name, type.name + '::' + name, '=', value);
|
|
1029 }
|
|
1030 }
|
|
1031 type = type.superclass;
|
|
1032 }
|
|
1033 }
|
|
1034
|
|
1035 // define readXXX and printXXX functions for each VM struct/class Type
|
|
1036 tmp = new Object();
|
|
1037 tmp.itr = sa.typedb.types;
|
|
1038 while (tmp.itr.hasNext()) {
|
|
1039 tmp.type = tmp.itr.next();
|
|
1040 tmp.name = tmp.type.name;
|
|
1041 if (tmp.type.isPointerType() || tmp.type.isOopType() ||
|
|
1042 tmp.type.isCIntegerType() || tmp.type.isJavaPrimitiveType() ||
|
|
1043 tmp.name.equals('address') ||
|
|
1044 tmp.name.equals("<opaque>")) {
|
|
1045 // ignore;
|
|
1046 continue;
|
|
1047 } else {
|
|
1048 // some type names have ':'. replace to make it as a
|
|
1049 // JavaScript identifier
|
|
1050 tmp.name = tmp.name.replace(':', '_');
|
|
1051 eval("function read" + tmp.name + "(addr) {" +
|
|
1052 " return readVMType('" + tmp.name + "', addr);}");
|
|
1053 eval("function print" + tmp.name + "(addr) {" +
|
|
1054 " printVMType('" + tmp.name + "', addr); }");
|
|
1055
|
|
1056 /* FIXME: do we need this?
|
|
1057 if (typeof(registerCommand) != 'undefined') {
|
|
1058 var name = "print" + tmp.name;
|
|
1059 registerCommand(name, name + " [address]", name);
|
|
1060 }
|
|
1061 */
|
|
1062 }
|
|
1063 }
|
|
1064 //clean-up the temporary
|
|
1065 delete tmp;
|
|
1066
|
|
1067 // VMObject factory
|
|
1068
|
|
1069 // VM type to SA class map
|
|
1070 var vmType2Class = new Object();
|
|
1071
|
|
1072 // This is *not* exhaustive. Add more if needed.
|
|
1073 // code blobs
|
|
1074 vmType2Class["BufferBlob"] = sapkg.code.BufferBlob;
|
|
1075 vmType2Class["nmethod"] = sapkg.code.NMethod;
|
|
1076 vmType2Class["RuntimeStub"] = sapkg.code.RuntimeStub;
|
|
1077 vmType2Class["SafepointBlob"] = sapkg.code.SafepointBlob;
|
|
1078 vmType2Class["C2IAdapter"] = sapkg.code.C2IAdapter;
|
|
1079 vmType2Class["DeoptimizationBlob"] = sapkg.code.DeoptimizationBlob;
|
|
1080 vmType2Class["ExceptionBlob"] = sapkg.code.ExceptionBlob;
|
|
1081 vmType2Class["I2CAdapter"] = sapkg.code.I2CAdapter;
|
|
1082 vmType2Class["OSRAdapter"] = sapkg.code.OSRAdapter;
|
|
1083 vmType2Class["UncommonTrapBlob"] = sapkg.code.UncommonTrapBlob;
|
|
1084 vmType2Class["PCDesc"] = sapkg.code.PCDesc;
|
|
1085
|
|
1086 // interpreter
|
|
1087 vmType2Class["InterpreterCodelet"] = sapkg.interpreter.InterpreterCodelet;
|
|
1088
|
|
1089 // Java Threads
|
|
1090 vmType2Class["JavaThread"] = sapkg.runtime.JavaThread;
|
|
1091 vmType2Class["CompilerThread"] = sapkg.runtime.CompilerThread;
|
|
1092 vmType2Class["SurrogateLockerThread"] = sapkg.runtime.JavaThread;
|
|
1093 vmType2Class["DebuggerThread"] = sapkg.runtime.DebuggerThread;
|
|
1094
|
|
1095 // gc
|
|
1096 vmType2Class["GenCollectedHeap"] = sapkg.memory.GenCollectedHeap;
|
|
1097 vmType2Class["CompactingPermGenGen"] = sapkg.memory.CompactingPermGenGen;
|
|
1098 vmType2Class["DefNewGeneration"] = sapkg.memory.DefNewGeneration;
|
|
1099 vmType2Class["TenuredGeneration"] = sapkg.memory.TenuredGeneration;
|
|
1100
|
|
1101 // generic VMObject factory for a given address
|
|
1102 // This is equivalent to VirtualConstructor.
|
|
1103 function newVMObject(addr) {
|
|
1104 addr = any2addr(addr);
|
|
1105 var result = null;
|
|
1106 forEachVMType(function (type) {
|
|
1107 if (isOfVMType(addr, type)) {
|
|
1108 var clazz = vmType2Class[type.name];
|
|
1109 if (clazz != undefined) {
|
|
1110 result = new clazz(addr);
|
|
1111 }
|
|
1112 return false;
|
|
1113 } else {
|
|
1114 return true;
|
|
1115 }
|
|
1116 });
|
|
1117 return result;
|
|
1118 }
|
|
1119
|
|
1120 function vmobj2addr(vmobj) {
|
|
1121 return vmobj.address;
|
|
1122 }
|
|
1123
|
|
1124 function addr2vmobj(addr) {
|
|
1125 return newVMObject(addr);
|
|
1126 }
|
|
1127
|
|
1128 // Miscellaneous utilities
|
|
1129
|
|
1130 // returns PointerLocation that describes the given pointer
|
|
1131 function findPtr(addr) {
|
|
1132 addr = any2addr(addr);
|
|
1133 return sapkg.utilities.PointerFinder.find(addr);
|
|
1134 }
|
|
1135
|
|
1136 // is given address a valid Oop?
|
|
1137 function isOop(addr) {
|
|
1138 addr = any2addr(addr);
|
|
1139 var oopHandle = addr.addOffsetToAsOopHandle(0);
|
|
1140 return sapkg.utilities.RobustOopDeterminator.oopLooksValid(oopHandle);
|
|
1141 }
|
|
1142
|
|
1143 // returns description of given pointer as a String
|
|
1144 function whatis(addr) {
|
|
1145 addr = any2addr(addr);
|
|
1146 var ptrLoc = findPtr(addr);
|
|
1147 if (ptrLoc.isUnknown()) {
|
|
1148 var vmType = vmTypeof(addr);
|
|
1149 if (vmType != null) {
|
|
1150 return "pointer to " + vmType.name;
|
|
1151 } else {
|
|
1152 var sym = closestSymbolFor(addr);
|
|
1153 if (sym != null) {
|
|
1154 return sym.name + '+' + sym.offset;
|
|
1155 } else {
|
|
1156 return ptrLoc.toString();
|
|
1157 }
|
|
1158 }
|
|
1159 } else {
|
|
1160 return ptrLoc.toString();
|
|
1161 }
|
|
1162 }
|