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1 /*
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844
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2 * Copyright 2000-2009 Sun Microsystems, Inc. All Rights Reserved.
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0
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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;
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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.types.*;
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31 import sun.jvm.hotspot.types.basic.*;
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32 import sun.jvm.hotspot.utilities.*;
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33
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34 /** <P> This is the cross-platform TypeDataBase used by the Oop
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35 hierarchy. The decision was made to make this cross-platform by
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36 having the VM export the necessary symbols via a built-in table;
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37 see src/share/vm/runtime/vmStructs.[ch]pp for more details. </P>
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38
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39 <P> <B>WARNING</B>: clients should refer to this class through the
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40 TypeDataBase interface and not directly to the HotSpotTypeDataBase
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41 type. </P>
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42
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43 <P> NOTE: since we are fetching the sizes of the Java primitive types
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44 */
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45
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46 public class HotSpotTypeDataBase extends BasicTypeDataBase {
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47 private Debugger symbolLookup;
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48 private String[] jvmLibNames;
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49 private static final int UNINITIALIZED_SIZE = -1;
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50 private static final int C_INT8_SIZE = 1;
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51 private static final int C_INT32_SIZE = 4;
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52 private static final int C_INT64_SIZE = 8;
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53
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54 private static final boolean DEBUG;
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55 static {
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56 DEBUG = System.getProperty("sun.jvm.hotspot.HotSpotTypeDataBase.DEBUG")
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57 != null;
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58 }
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59
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60 /** <P> This requires a SymbolLookup mechanism as well as the
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61 MachineDescription. Note that we do not need a NameMangler since
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62 we use the vmStructs mechanism to avoid looking up C++
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63 symbols. </P>
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64
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65 <P> NOTE that it is guaranteed that this constructor will not
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66 attempt to fetch any Java values from the remote process, only C
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67 integers and addresses. This is required because we are fetching
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68 the sizes of the Java primitive types from the remote process,
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69 implying that attempting to fetch them before their sizes are
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70 known is illegal. </P>
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71
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72 <P> Throws NoSuchSymbolException if a problem occurred while
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73 looking up one of the bootstrapping symbols related to the
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74 VMStructs table in the remote VM; this may indicate that the
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75 remote process is not actually a HotSpot VM. </P>
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76 */
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77 public HotSpotTypeDataBase(MachineDescription machDesc,
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78 VtblAccess vtblAccess,
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79 Debugger symbolLookup,
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80 String[] jvmLibNames) throws NoSuchSymbolException {
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81 super(machDesc, vtblAccess);
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82 this.symbolLookup = symbolLookup;
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83 this.jvmLibNames = jvmLibNames;
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84
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85 readVMTypes();
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86 initializePrimitiveTypes();
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87 readVMStructs();
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88 readVMIntConstants();
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89 readVMLongConstants();
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90 }
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91
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92 private void readVMTypes() {
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93 // Get the variables we need in order to traverse the VMTypeEntry[]
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94 long typeEntryTypeNameOffset;
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95 long typeEntrySuperclassNameOffset;
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96 long typeEntryIsOopTypeOffset;
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97 long typeEntryIsIntegerTypeOffset;
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98 long typeEntryIsUnsignedOffset;
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99 long typeEntrySizeOffset;
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100 long typeEntryArrayStride;
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101
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102 typeEntryTypeNameOffset = getLongValueFromProcess("gHotSpotVMTypeEntryTypeNameOffset");
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103 typeEntrySuperclassNameOffset = getLongValueFromProcess("gHotSpotVMTypeEntrySuperclassNameOffset");
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104 typeEntryIsOopTypeOffset = getLongValueFromProcess("gHotSpotVMTypeEntryIsOopTypeOffset");
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105 typeEntryIsIntegerTypeOffset = getLongValueFromProcess("gHotSpotVMTypeEntryIsIntegerTypeOffset");
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106 typeEntryIsUnsignedOffset = getLongValueFromProcess("gHotSpotVMTypeEntryIsUnsignedOffset");
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107 typeEntrySizeOffset = getLongValueFromProcess("gHotSpotVMTypeEntrySizeOffset");
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108 typeEntryArrayStride = getLongValueFromProcess("gHotSpotVMTypeEntryArrayStride");
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109
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110 // Fetch the address of the VMTypeEntry*
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111 Address entryAddr = lookupInProcess("gHotSpotVMTypes");
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112 // System.err.println("gHotSpotVMTypes address = " + entryAddr);
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113 // Dereference this once to get the pointer to the first VMTypeEntry
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114 // dumpMemory(entryAddr, 80);
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115 entryAddr = entryAddr.getAddressAt(0);
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116
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117 if (entryAddr == null) {
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118 throw new RuntimeException("gHotSpotVMTypes was not initialized properly in the remote process; can not continue");
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119 }
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120
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121 // Start iterating down it until we find an entry with no name
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122 Address typeNameAddr = null;
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123 do {
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124 // Fetch the type name first
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125 typeNameAddr = entryAddr.getAddressAt(typeEntryTypeNameOffset);
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126 if (typeNameAddr != null) {
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127 String typeName = CStringUtilities.getString(typeNameAddr);
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128
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129 String superclassName = null;
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130 Address superclassNameAddr = entryAddr.getAddressAt(typeEntrySuperclassNameOffset);
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131 if (superclassNameAddr != null) {
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132 superclassName = CStringUtilities.getString(superclassNameAddr);
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133 }
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134
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135 boolean isOopType = (entryAddr.getCIntegerAt(typeEntryIsOopTypeOffset, C_INT32_SIZE, false) != 0);
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136 boolean isIntegerType = (entryAddr.getCIntegerAt(typeEntryIsIntegerTypeOffset, C_INT32_SIZE, false) != 0);
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137 boolean isUnsigned = (entryAddr.getCIntegerAt(typeEntryIsUnsignedOffset, C_INT32_SIZE, false) != 0);
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138 long size = entryAddr.getCIntegerAt(typeEntrySizeOffset, C_INT64_SIZE, true);
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139
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140 createType(typeName, superclassName, isOopType, isIntegerType, isUnsigned, size);
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141 }
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142
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143 entryAddr = entryAddr.addOffsetTo(typeEntryArrayStride);
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144 } while (typeNameAddr != null);
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145 }
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146
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147 private void initializePrimitiveTypes() {
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148 // Look up the needed primitive types by name...they had better be present
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149 setJBooleanType(lookupPrimitiveType("jboolean"));
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150 setJByteType (lookupPrimitiveType("jbyte"));
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151 setJCharType (lookupPrimitiveType("jchar"));
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152 setJDoubleType (lookupPrimitiveType("jdouble"));
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153 setJFloatType (lookupPrimitiveType("jfloat"));
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154 setJIntType (lookupPrimitiveType("jint"));
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155 setJLongType (lookupPrimitiveType("jlong"));
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156 setJShortType (lookupPrimitiveType("jshort"));
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157
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158 // Indicate that these are the Java primitive types
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159 ((BasicType) getJBooleanType()).setIsJavaPrimitiveType(true);
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160 ((BasicType) getJByteType()).setIsJavaPrimitiveType(true);
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161 ((BasicType) getJCharType()).setIsJavaPrimitiveType(true);
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162 ((BasicType) getJDoubleType()).setIsJavaPrimitiveType(true);
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163 ((BasicType) getJFloatType()).setIsJavaPrimitiveType(true);
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164 ((BasicType) getJIntType()).setIsJavaPrimitiveType(true);
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165 ((BasicType) getJLongType()).setIsJavaPrimitiveType(true);
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166 ((BasicType) getJShortType()).setIsJavaPrimitiveType(true);
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167 }
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168
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169 private Type lookupPrimitiveType(String typeName) {
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170 Type type = lookupType(typeName, false);
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171 if (type == null) {
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172 throw new RuntimeException("Error initializing the HotSpotDataBase: could not find the primitive type \"" +
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173 typeName + "\" in the remote VM's VMStructs table. This type is required in " +
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174 "order to determine the size of Java primitive types. Can not continue.");
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175 }
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176 return type;
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177 }
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178
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179 private void readVMStructs() {
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180 // Get the variables we need in order to traverse the VMStructEntry[]
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181 long structEntryTypeNameOffset;
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182 long structEntryFieldNameOffset;
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183 long structEntryTypeStringOffset;
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184 long structEntryIsStaticOffset;
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185 long structEntryOffsetOffset;
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186 long structEntryAddressOffset;
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187 long structEntryArrayStride;
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188
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189 structEntryTypeNameOffset = getLongValueFromProcess("gHotSpotVMStructEntryTypeNameOffset");
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190 structEntryFieldNameOffset = getLongValueFromProcess("gHotSpotVMStructEntryFieldNameOffset");
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191 structEntryTypeStringOffset = getLongValueFromProcess("gHotSpotVMStructEntryTypeStringOffset");
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192 structEntryIsStaticOffset = getLongValueFromProcess("gHotSpotVMStructEntryIsStaticOffset");
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193 structEntryOffsetOffset = getLongValueFromProcess("gHotSpotVMStructEntryOffsetOffset");
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194 structEntryAddressOffset = getLongValueFromProcess("gHotSpotVMStructEntryAddressOffset");
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195 structEntryArrayStride = getLongValueFromProcess("gHotSpotVMStructEntryArrayStride");
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196
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197 // Fetch the address of the VMStructEntry*
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198 Address entryAddr = lookupInProcess("gHotSpotVMStructs");
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199 // Dereference this once to get the pointer to the first VMStructEntry
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200 entryAddr = entryAddr.getAddressAt(0);
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201 if (entryAddr == null) {
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202 throw new RuntimeException("gHotSpotVMStructs was not initialized properly in the remote process; can not continue");
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203 }
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204
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205 // Start iterating down it until we find an entry with no name
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206 Address fieldNameAddr = null;
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207 String typeName = null;
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208 String fieldName = null;
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209 String typeString = null;
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210 boolean isStatic = false;
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211 long offset = 0;
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212 Address staticFieldAddr = null;
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213 long size = 0;
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214 long index = 0;
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215 String opaqueName = "<opaque>";
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216 lookupOrCreateClass(opaqueName, false, false, false);
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217
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218 do {
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219 // Fetch the field name first
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220 fieldNameAddr = entryAddr.getAddressAt(structEntryFieldNameOffset);
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221 if (fieldNameAddr != null) {
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222 fieldName = CStringUtilities.getString(fieldNameAddr);
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223
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224 // Now the rest of the names. Keep in mind that the type name
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225 // may be NULL, indicating that the type is opaque.
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226 Address addr = entryAddr.getAddressAt(structEntryTypeNameOffset);
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227 if (addr == null) {
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228 throw new RuntimeException("gHotSpotVMStructs unexpectedly had a NULL type name at index " + index);
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229 }
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230 typeName = CStringUtilities.getString(addr);
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231
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232 addr = entryAddr.getAddressAt(structEntryTypeStringOffset);
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233 if (addr == null) {
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234 typeString = opaqueName;
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235 } else {
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236 typeString = CStringUtilities.getString(addr);
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237 }
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238
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239 isStatic = !(entryAddr.getCIntegerAt(structEntryIsStaticOffset, C_INT32_SIZE, false) == 0);
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240 if (isStatic) {
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241 staticFieldAddr = entryAddr.getAddressAt(structEntryAddressOffset);
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242 offset = 0;
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243 } else {
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244 offset = entryAddr.getCIntegerAt(structEntryOffsetOffset, C_INT64_SIZE, true);
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245 staticFieldAddr = null;
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246 }
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247
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248 // The containing Type must already be in the database -- no exceptions
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249 BasicType containingType = lookupOrFail(typeName);
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250
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251 // The field's Type must already be in the database -- no exceptions
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252 BasicType fieldType = lookupOrFail(typeString);
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253
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254 // Create field by type
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255 createField(containingType, fieldName, fieldType,
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256 isStatic, offset, staticFieldAddr);
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257 }
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258
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259 ++index;
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260 entryAddr = entryAddr.addOffsetTo(structEntryArrayStride);
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261 } while (fieldNameAddr != null);
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262 }
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263
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264 private void readVMIntConstants() {
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265 // Get the variables we need in order to traverse the VMIntConstantEntry[]
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266 long intConstantEntryNameOffset;
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267 long intConstantEntryValueOffset;
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268 long intConstantEntryArrayStride;
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269
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270 intConstantEntryNameOffset = getLongValueFromProcess("gHotSpotVMIntConstantEntryNameOffset");
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271 intConstantEntryValueOffset = getLongValueFromProcess("gHotSpotVMIntConstantEntryValueOffset");
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272 intConstantEntryArrayStride = getLongValueFromProcess("gHotSpotVMIntConstantEntryArrayStride");
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273
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274 // Fetch the address of the VMIntConstantEntry*
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275 Address entryAddr = lookupInProcess("gHotSpotVMIntConstants");
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276 // Dereference this once to get the pointer to the first VMIntConstantEntry
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277 entryAddr = entryAddr.getAddressAt(0);
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278 if (entryAddr == null) {
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279 throw new RuntimeException("gHotSpotVMIntConstants was not initialized properly in the remote process; can not continue");
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280 }
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281
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282 // Start iterating down it until we find an entry with no name
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283 Address nameAddr = null;
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284 do {
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285 // Fetch the type name first
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286 nameAddr = entryAddr.getAddressAt(intConstantEntryNameOffset);
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287 if (nameAddr != null) {
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288 String name = CStringUtilities.getString(nameAddr);
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289 int value = (int) entryAddr.getCIntegerAt(intConstantEntryValueOffset, C_INT32_SIZE, false);
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290
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291 // Be a little resilient
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292 Integer oldValue = lookupIntConstant(name, false);
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293 if (oldValue == null) {
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294 addIntConstant(name, value);
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295 } else {
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296 if (oldValue.intValue() != value) {
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297 throw new RuntimeException("Error: the integer constant \"" + name +
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298 "\" had its value redefined (old was " + oldValue +
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299 ", new is " + value + ". Aborting.");
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300 } else {
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301 System.err.println("Warning: the int constant \"" + name + "\" (declared in the remote VM in VMStructs::localHotSpotVMIntConstants) " +
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302 "had its value declared as " + value + " twice. Continuing.");
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303 }
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304 }
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305 }
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306
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307 entryAddr = entryAddr.addOffsetTo(intConstantEntryArrayStride);
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308 } while (nameAddr != null);
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309 }
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310
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311 private void readVMLongConstants() {
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312 // Get the variables we need in order to traverse the VMLongConstantEntry[]
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313 long longConstantEntryNameOffset;
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314 long longConstantEntryValueOffset;
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315 long longConstantEntryArrayStride;
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316
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317 longConstantEntryNameOffset = getLongValueFromProcess("gHotSpotVMLongConstantEntryNameOffset");
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318 longConstantEntryValueOffset = getLongValueFromProcess("gHotSpotVMLongConstantEntryValueOffset");
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319 longConstantEntryArrayStride = getLongValueFromProcess("gHotSpotVMLongConstantEntryArrayStride");
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320
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321 // Fetch the address of the VMLongConstantEntry*
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322 Address entryAddr = lookupInProcess("gHotSpotVMLongConstants");
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323 // Dereference this once to get the pointer to the first VMLongConstantEntry
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324 entryAddr = entryAddr.getAddressAt(0);
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325 if (entryAddr == null) {
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326 throw new RuntimeException("gHotSpotVMLongConstants was not initialized properly in the remote process; can not continue");
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327 }
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328
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329 // Start iterating down it until we find an entry with no name
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330 Address nameAddr = null;
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331 do {
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332 // Fetch the type name first
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333 nameAddr = entryAddr.getAddressAt(longConstantEntryNameOffset);
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334 if (nameAddr != null) {
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335 String name = CStringUtilities.getString(nameAddr);
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336 int value = (int) entryAddr.getCIntegerAt(longConstantEntryValueOffset, C_INT64_SIZE, true);
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337
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338 // Be a little resilient
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339 Long oldValue = lookupLongConstant(name, false);
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340 if (oldValue == null) {
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341 addLongConstant(name, value);
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342 } else {
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343 if (oldValue.longValue() != value) {
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344 throw new RuntimeException("Error: the long constant \"" + name +
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345 "\" had its value redefined (old was " + oldValue +
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346 ", new is " + value + ". Aborting.");
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347 } else {
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348 System.err.println("Warning: the long constant \"" + name + "\" (declared in the remote VM in VMStructs::localHotSpotVMLongConstants) " +
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349 "had its value declared as " + value + " twice. Continuing.");
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350 }
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351 }
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352 }
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353
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354 entryAddr = entryAddr.addOffsetTo(longConstantEntryArrayStride);
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355 } while (nameAddr != null);
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356 }
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357
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358 private BasicType lookupOrFail(String typeName) {
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359 BasicType type = (BasicType) lookupType(typeName, false);
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360 if (type == null) {
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361 throw new RuntimeException("Type \"" + typeName + "\", referenced in VMStructs::localHotSpotVMStructs in the remote VM, " +
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362 "was not present in the remote VMStructs::localHotSpotVMTypes table (should have been caught " +
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363 "in the debug build of that VM). Can not continue.");
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364 }
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365 return type;
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366 }
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367
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368 private long getLongValueFromProcess(String symbol) {
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369 return lookupInProcess(symbol).getCIntegerAt(0, C_INT64_SIZE, true);
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370 }
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371
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372 private Address lookupInProcess(String symbol) throws NoSuchSymbolException {
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|
373 // FIXME: abstract away the loadobject name
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|
374 for (int i = 0; i < jvmLibNames.length; i++) {
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|
|
375 Address addr = symbolLookup.lookup(jvmLibNames[i], symbol);
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|
376 if (addr != null) {
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|
377 return addr;
|
|
|
378 }
|
|
|
379 }
|
|
|
380 String errStr = "(";
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|
|
381 for (int i = 0; i < jvmLibNames.length; i++) {
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|
|
382 errStr += jvmLibNames[i];
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|
|
383 if (i < jvmLibNames.length - 1) {
|
|
|
384 errStr += ", ";
|
|
|
385 }
|
|
|
386 }
|
|
|
387 errStr += ")";
|
|
|
388 throw new NoSuchSymbolException(symbol,
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|
|
389 "Could not find symbol \"" + symbol +
|
|
|
390 "\" in any of the known library names " +
|
|
|
391 errStr);
|
|
|
392 }
|
|
|
393
|
|
|
394 private BasicType lookupOrCreateClass(String typeName, boolean isOopType,
|
|
|
395 boolean isIntegerType, boolean isUnsigned) {
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|
|
396 BasicType type = (BasicType) lookupType(typeName, false);
|
|
|
397 if (type == null) {
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|
|
398 // Create a new type
|
|
|
399 type = createBasicType(typeName, isOopType, isIntegerType, isUnsigned);
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|
|
400 }
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|
|
401 return type;
|
|
|
402 }
|
|
|
403
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|
404 /** Creates a new BasicType, initializes its size to -1 so we can
|
|
|
405 test to ensure that all types' sizes are initialized by VMTypes,
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|
|
406 and adds it to the database. Takes care of initializing integer
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|
|
407 and oop types properly. */
|
|
|
408 private BasicType createBasicType(String typeName, boolean isOopType,
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|
|
409 boolean isIntegerType, boolean isUnsigned) {
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|
|
410
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|
|
411 BasicType type = null;
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|
|
412
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|
|
413 if (isIntegerType) {
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|
|
414 type = new BasicCIntegerType(this, typeName, isUnsigned);
|
|
|
415 } else {
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|
|
416 if (typeNameIsPointerType(typeName)) {
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|
|
417 type = recursiveCreateBasicPointerType(typeName);
|
|
|
418 } else {
|
|
|
419 type = new BasicType(this, typeName);
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|
|
420 }
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|
|
421
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|
|
422 if (isOopType) {
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|
423 // HACK: turn markOop into a C integer type. This allows
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|
|
424 // proper handling of it in the Serviceability Agent. (FIXME
|
|
|
425 // -- consider doing something different here)
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|
|
426 if (typeName.equals("markOop")) {
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|
|
427 type = new BasicCIntegerType(this, typeName, true);
|
|
|
428 } else {
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|
|
429 type.setIsOopType(true);
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|
|
430 }
|
|
|
431 }
|
|
|
432 }
|
|
|
433
|
|
|
434 type.setSize(UNINITIALIZED_SIZE);
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|
|
435 addType(type);
|
|
|
436 return type;
|
|
|
437 }
|
|
|
438
|
|
|
439 /** Recursively creates a PointerType from the string representation
|
|
|
440 of the type's name. Note that this currently needs some
|
|
|
441 workarounds due to incomplete information in the VMStructs
|
|
|
442 database. */
|
|
|
443 private BasicPointerType recursiveCreateBasicPointerType(String typeName) {
|
|
|
444 String targetTypeName = typeName.substring(0, typeName.lastIndexOf('*')).trim();
|
|
|
445 Type targetType = null;
|
|
|
446 if (typeNameIsPointerType(targetTypeName)) {
|
|
|
447 targetType = recursiveCreateBasicPointerType(targetTypeName);
|
|
|
448 } else {
|
|
|
449 targetType = lookupType(targetTypeName, false);
|
|
|
450 if (targetType == null) {
|
|
|
451 // Workaround for missing C integer types in database.
|
|
|
452 // Also looks like we can't throw an exception for other
|
|
|
453 // missing target types because there are some in old
|
|
|
454 // VMStructs tables that didn't have the target type declared.
|
|
|
455 // For this case, we create basic types that never get filled
|
|
|
456 // in.
|
|
|
457
|
|
|
458 if (targetTypeName.equals("char") ||
|
|
|
459 targetTypeName.equals("const char")) {
|
|
|
460 // We don't have a representation of const-ness of C types in the SA
|
|
|
461 BasicType basicTargetType = createBasicType(targetTypeName, false, true, false);
|
|
|
462 basicTargetType.setSize(1);
|
|
|
463 targetType = basicTargetType;
|
|
|
464 } else if (targetTypeName.equals("u_char")) {
|
|
|
465 BasicType basicTargetType = createBasicType(targetTypeName, false, true, true);
|
|
|
466 basicTargetType.setSize(1);
|
|
|
467 targetType = basicTargetType;
|
|
|
468 } else {
|
|
|
469 if (DEBUG) {
|
|
|
470 System.err.println("WARNING: missing target type \"" + targetTypeName + "\" for pointer type \"" + typeName + "\"");
|
|
|
471 }
|
|
|
472 targetType = createBasicType(targetTypeName, false, false, false);
|
|
|
473 }
|
|
|
474 }
|
|
|
475 }
|
|
|
476 return new BasicPointerType(this, typeName, targetType);
|
|
|
477 }
|
|
|
478
|
|
|
479 private boolean typeNameIsPointerType(String typeName) {
|
|
|
480 int i = typeName.length() - 1;
|
|
|
481 while (i >= 0 && Character.isWhitespace(typeName.charAt(i))) {
|
|
|
482 --i;
|
|
|
483 }
|
|
|
484 if (i >= 0 && typeName.charAt(i) == '*') {
|
|
|
485 return true;
|
|
|
486 }
|
|
|
487 return false;
|
|
|
488 }
|
|
|
489
|
|
|
490 public void createType(String typeName, String superclassName,
|
|
|
491 boolean isOopType, boolean isIntegerType,
|
|
|
492 boolean isUnsigned, long size) {
|
|
|
493 // See whether we have a superclass
|
|
|
494 BasicType superclass = null;
|
|
|
495 if (superclassName != null) {
|
|
|
496 // Fetch or create it (FIXME: would get oop types wrong if
|
|
|
497 // they had a hierarchy; consider using lookupOrFail)
|
|
|
498 superclass = lookupOrCreateClass(superclassName, false, false, false);
|
|
|
499 }
|
|
|
500
|
|
|
501 // Lookup or create the current type
|
|
|
502 BasicType curType = lookupOrCreateClass(typeName, isOopType, isIntegerType, isUnsigned);
|
|
|
503 // Set superclass and/or ensure it's correct
|
|
|
504 if (superclass != null) {
|
|
|
505 if (curType.getSuperclass() == null) {
|
|
|
506 // Set the superclass in the current type
|
|
|
507 curType.setSuperclass(superclass);
|
|
|
508 }
|
|
|
509
|
|
|
510 if (curType.getSuperclass() != superclass) {
|
|
|
511 throw new RuntimeException("Error: the type \"" + typeName + "\" (declared in the remote VM in VMStructs::localHotSpotVMTypes) " +
|
|
|
512 "had its superclass redefined (old was " + curType.getSuperclass().getName() + ", new is " +
|
|
|
513 superclass.getName() + ").");
|
|
|
514 }
|
|
|
515 }
|
|
|
516
|
|
|
517 // Classes are created with a size of UNINITIALIZED_SIZE.
|
|
|
518 // Set size if necessary.
|
|
|
519 if (curType.getSize() == UNINITIALIZED_SIZE) {
|
|
|
520 curType.setSize(size);
|
|
|
521 } else {
|
|
|
522 if (curType.getSize() != size) {
|
|
|
523 throw new RuntimeException("Error: the type \"" + typeName + "\" (declared in the remote VM in VMStructs::localHotSpotVMTypes) " +
|
|
|
524 "had its size redefined (old was " + curType.getSize() + ", new is " + size + ").");
|
|
|
525 }
|
|
|
526
|
|
|
527 System.err.println("Warning: the type \"" + typeName + "\" (declared in the remote VM in VMStructs::localHotSpotVMTypes) " +
|
|
|
528 "had its size declared as " + size + " twice. Continuing.");
|
|
|
529 }
|
|
|
530
|
|
|
531 }
|
|
|
532
|
|
|
533 /** "Virtual constructor" for fields based on type */
|
|
|
534 public void createField(BasicType containingType,
|
|
|
535 String name, Type type, boolean isStatic,
|
|
|
536 long offset, Address staticFieldAddress) {
|
|
|
537 // Add field to containing type
|
|
|
538 containingType.addField(internalCreateField(containingType, name, type, isStatic, offset, staticFieldAddress));
|
|
|
539 }
|
|
|
540
|
|
|
541 Field internalCreateField(BasicType containingType,
|
|
|
542 String name, Type type, boolean isStatic,
|
|
|
543 long offset, Address staticFieldAddress) {
|
|
|
544 // "Virtual constructor" based on type
|
|
|
545 if (type.isOopType()) {
|
|
|
546 return new BasicOopField(this, containingType, name, type,
|
|
|
547 isStatic, offset, staticFieldAddress);
|
|
|
548 }
|
|
|
549
|
|
|
550 if (type instanceof CIntegerType) {
|
|
|
551 return new BasicCIntegerField(this, containingType, name, type,
|
|
|
552 isStatic, offset, staticFieldAddress);
|
|
|
553 }
|
|
|
554
|
|
|
555 if (type.equals(getJBooleanType())) {
|
|
|
556 return new BasicJBooleanField(this, containingType, name, type,
|
|
|
557 isStatic, offset, staticFieldAddress);
|
|
|
558 }
|
|
|
559
|
|
|
560 if (type.equals(getJByteType())) {
|
|
|
561 return new BasicJByteField(this, containingType, name, type,
|
|
|
562 isStatic, offset, staticFieldAddress);
|
|
|
563 }
|
|
|
564
|
|
|
565 if (type.equals(getJCharType())) {
|
|
|
566 return new BasicJCharField(this, containingType, name, type,
|
|
|
567 isStatic, offset, staticFieldAddress);
|
|
|
568 }
|
|
|
569
|
|
|
570 if (type.equals(getJDoubleType())) {
|
|
|
571 return new BasicJDoubleField(this, containingType, name, type,
|
|
|
572 isStatic, offset, staticFieldAddress);
|
|
|
573 }
|
|
|
574
|
|
|
575 if (type.equals(getJFloatType())) {
|
|
|
576 return new BasicJFloatField(this, containingType, name, type,
|
|
|
577 isStatic, offset, staticFieldAddress);
|
|
|
578 }
|
|
|
579
|
|
|
580 if (type.equals(getJIntType())) {
|
|
|
581 return new BasicJIntField(this, containingType, name, type,
|
|
|
582 isStatic, offset, staticFieldAddress);
|
|
|
583 }
|
|
|
584
|
|
|
585 if (type.equals(getJLongType())) {
|
|
|
586 return new BasicJLongField(this, containingType, name, type,
|
|
|
587 isStatic, offset, staticFieldAddress);
|
|
|
588 }
|
|
|
589
|
|
|
590 if (type.equals(getJShortType())) {
|
|
|
591 return new BasicJShortField(this, containingType, name, type,
|
|
|
592 isStatic, offset, staticFieldAddress);
|
|
|
593 }
|
|
|
594
|
|
|
595 // Unknown ("opaque") type. Instantiate ordinary Field.
|
|
|
596 return new BasicField(this, containingType, name, type,
|
|
|
597 isStatic, offset, staticFieldAddress);
|
|
|
598 }
|
|
|
599
|
|
|
600 // For debugging
|
|
|
601 private void dumpMemory(Address addr, int len) {
|
|
|
602 int i = 0;
|
|
|
603 while (i < len) {
|
|
|
604 System.err.print(addr.addOffsetTo(i) + ":");
|
|
|
605 for (int j = 0; j < 8 && i < len; i++, j++) {
|
|
|
606 String s = Long.toHexString(addr.getCIntegerAt(i, 1, true));
|
|
|
607 System.err.print(" 0x");
|
|
|
608 for (int k = 0; k < 2 - s.length(); k++) {
|
|
|
609 System.err.print("0");
|
|
|
610 }
|
|
|
611 System.err.print(s);
|
|
|
612 }
|
|
|
613 System.err.println();
|
|
|
614 }
|
|
|
615 }
|
|
|
616 }
|
