annotate src/share/vm/oops/instanceKlass.hpp @ 8712:3efdfd6ddbf2

8003553: NPG: metaspace objects should be zeroed in constructors Summary: Zero metadata in constructors, not in allocation (and some in constructors) Reviewed-by: jmasa, sspitsyn
author coleenp
date Fri, 08 Mar 2013 11:47:57 -0500
parents 927a311d00f9
children 35ef86296a5d
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1 /*
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2 * Copyright (c) 1997, 2013, Oracle and/or its affiliates. All rights reserved.
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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4 *
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5 * This code is free software; you can redistribute it and/or modify it
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6 * under the terms of the GNU General Public License version 2 only, as
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7 * published by the Free Software Foundation.
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8 *
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9 * This code is distributed in the hope that it will be useful, but WITHOUT
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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12 * version 2 for more details (a copy is included in the LICENSE file that
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13 * accompanied this code).
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14 *
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15 * You should have received a copy of the GNU General Public License version
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16 * 2 along with this work; if not, write to the Free Software Foundation,
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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18 *
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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20 * or visit www.oracle.com if you need additional information or have any
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21 * questions.
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22 *
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23 */
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24
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25 #ifndef SHARE_VM_OOPS_INSTANCEKLASS_HPP
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26 #define SHARE_VM_OOPS_INSTANCEKLASS_HPP
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27
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28 #include "classfile/classLoaderData.hpp"
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29 #include "oops/annotations.hpp"
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30 #include "oops/constMethod.hpp"
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31 #include "oops/fieldInfo.hpp"
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32 #include "oops/instanceOop.hpp"
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33 #include "oops/klassVtable.hpp"
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34 #include "runtime/atomic.hpp"
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35 #include "runtime/handles.hpp"
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36 #include "runtime/os.hpp"
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37 #include "utilities/accessFlags.hpp"
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38 #include "utilities/bitMap.inline.hpp"
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39 #include "utilities/macros.hpp"
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40
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41 // An InstanceKlass is the VM level representation of a Java class.
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42 // It contains all information needed for at class at execution runtime.
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43
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44 // InstanceKlass layout:
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45 // [C++ vtbl pointer ] Klass
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46 // [subtype cache ] Klass
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47 // [instance size ] Klass
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48 // [java mirror ] Klass
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49 // [super ] Klass
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50 // [access_flags ] Klass
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51 // [name ] Klass
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52 // [first subklass ] Klass
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53 // [next sibling ] Klass
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54 // [array klasses ]
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55 // [methods ]
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56 // [local interfaces ]
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57 // [transitive interfaces ]
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58 // [fields ]
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59 // [constants ]
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60 // [class loader ]
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61 // [protection domain ]
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62 // [signers ]
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63 // [source file name ]
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64 // [inner classes ]
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65 // [static field size ]
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66 // [nonstatic field size ]
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67 // [static oop fields size ]
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68 // [nonstatic oop maps size ]
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69 // [has finalize method ]
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70 // [deoptimization mark bit ]
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71 // [initialization state ]
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72 // [initializing thread ]
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73 // [Java vtable length ]
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74 // [oop map cache (stack maps) ]
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75 // [EMBEDDED Java vtable ] size in words = vtable_len
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76 // [EMBEDDED nonstatic oop-map blocks] size in words = nonstatic_oop_map_size
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77 // The embedded nonstatic oop-map blocks are short pairs (offset, length)
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78 // indicating where oops are located in instances of this klass.
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79 // [EMBEDDED implementor of the interface] only exist for interface
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80 // [EMBEDDED host klass ] only exist for an anonymous class (JSR 292 enabled)
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81
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82
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83 // forward declaration for class -- see below for definition
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84 class SuperTypeClosure;
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85 class JNIid;
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86 class jniIdMapBase;
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87 class BreakpointInfo;
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88 class fieldDescriptor;
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89 class DepChange;
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90 class nmethodBucket;
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91 class PreviousVersionNode;
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92 class JvmtiCachedClassFieldMap;
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93
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94 // This is used in iterators below.
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95 class FieldClosure: public StackObj {
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96 public:
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97 virtual void do_field(fieldDescriptor* fd) = 0;
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98 };
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99
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100 #ifndef PRODUCT
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101 // Print fields.
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102 // If "obj" argument to constructor is NULL, prints static fields, otherwise prints non-static fields.
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103 class FieldPrinter: public FieldClosure {
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104 oop _obj;
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105 outputStream* _st;
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106 public:
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107 FieldPrinter(outputStream* st, oop obj = NULL) : _obj(obj), _st(st) {}
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108 void do_field(fieldDescriptor* fd);
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109 };
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110 #endif // !PRODUCT
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111
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112 // ValueObjs embedded in klass. Describes where oops are located in instances of
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113 // this klass.
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114 class OopMapBlock VALUE_OBJ_CLASS_SPEC {
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115 public:
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116 // Byte offset of the first oop mapped by this block.
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117 int offset() const { return _offset; }
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118 void set_offset(int offset) { _offset = offset; }
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119
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120 // Number of oops in this block.
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121 uint count() const { return _count; }
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122 void set_count(uint count) { _count = count; }
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123
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124 // sizeof(OopMapBlock) in HeapWords.
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125 static const int size_in_words() {
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126 return align_size_up(int(sizeof(OopMapBlock)), HeapWordSize) >>
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127 LogHeapWordSize;
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128 }
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129
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130 private:
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131 int _offset;
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132 uint _count;
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133 };
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134
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135 class InstanceKlass: public Klass {
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136 friend class VMStructs;
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137 friend class ClassFileParser;
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138 friend class CompileReplay;
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139
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140 protected:
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141 // Constructor
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142 InstanceKlass(int vtable_len,
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143 int itable_len,
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144 int static_field_size,
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145 int nonstatic_oop_map_size,
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146 ReferenceType rt,
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147 AccessFlags access_flags,
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148 bool is_anonymous);
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149 public:
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150 static Klass* allocate_instance_klass(ClassLoaderData* loader_data,
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151 int vtable_len,
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152 int itable_len,
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153 int static_field_size,
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154 int nonstatic_oop_map_size,
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155 ReferenceType rt,
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156 AccessFlags access_flags,
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157 Symbol* name,
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158 Klass* super_klass,
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159 bool is_anonymous,
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160 TRAPS);
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161
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162 InstanceKlass() { assert(DumpSharedSpaces || UseSharedSpaces, "only for CDS"); }
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163
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164 // See "The Java Virtual Machine Specification" section 2.16.2-5 for a detailed description
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165 // of the class loading & initialization procedure, and the use of the states.
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166 enum ClassState {
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167 allocated, // allocated (but not yet linked)
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168 loaded, // loaded and inserted in class hierarchy (but not linked yet)
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169 linked, // successfully linked/verified (but not initialized yet)
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170 being_initialized, // currently running class initializer
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171 fully_initialized, // initialized (successfull final state)
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172 initialization_error // error happened during initialization
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173 };
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174
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175 static int number_of_instance_classes() { return _total_instanceKlass_count; }
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176
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177 private:
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178 static volatile int _total_instanceKlass_count;
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179
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180 protected:
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181 // Protection domain.
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182 oop _protection_domain;
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183 // Class signers.
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184 objArrayOop _signers;
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185 // Initialization lock. Must be one per class and it has to be a VM internal
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186 // object so java code cannot lock it (like the mirror)
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187 // It has to be an object not a Mutex because it's held through java calls.
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188 volatile oop _init_lock;
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189
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190 // Annotations for this class
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191 Annotations* _annotations;
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192 // Array classes holding elements of this class.
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193 Klass* _array_klasses;
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194 // Constant pool for this class.
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195 ConstantPool* _constants;
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196 // The InnerClasses attribute and EnclosingMethod attribute. The
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197 // _inner_classes is an array of shorts. If the class has InnerClasses
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198 // attribute, then the _inner_classes array begins with 4-tuples of shorts
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199 // [inner_class_info_index, outer_class_info_index,
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200 // inner_name_index, inner_class_access_flags] for the InnerClasses
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201 // attribute. If the EnclosingMethod attribute exists, it occupies the
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202 // last two shorts [class_index, method_index] of the array. If only
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203 // the InnerClasses attribute exists, the _inner_classes array length is
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204 // number_of_inner_classes * 4. If the class has both InnerClasses
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205 // and EnclosingMethod attributes the _inner_classes array length is
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206 // number_of_inner_classes * 4 + enclosing_method_attribute_size.
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207 Array<jushort>* _inner_classes;
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208
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209 // Name of source file containing this klass, NULL if not specified.
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210 Symbol* _source_file_name;
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211 // the source debug extension for this klass, NULL if not specified.
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212 // Specified as UTF-8 string without terminating zero byte in the classfile,
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213 // it is stored in the instanceklass as a NULL-terminated UTF-8 string
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214 char* _source_debug_extension;
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215 // Generic signature, or null if none.
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216 Symbol* _generic_signature;
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217 // Array name derived from this class which needs unreferencing
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218 // if this class is unloaded.
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219 Symbol* _array_name;
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220
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221 // Number of heapOopSize words used by non-static fields in this klass
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222 // (including inherited fields but after header_size()).
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223 int _nonstatic_field_size;
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224 int _static_field_size; // number words used by static fields (oop and non-oop) in this klass
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225 u2 _static_oop_field_count;// number of static oop fields in this klass
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226 u2 _java_fields_count; // The number of declared Java fields
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227 int _nonstatic_oop_map_size;// size in words of nonstatic oop map blocks
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228
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229 // _is_marked_dependent can be set concurrently, thus cannot be part of the
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230 // _misc_flags.
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231 bool _is_marked_dependent; // used for marking during flushing and deoptimization
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232
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233 enum {
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234 _misc_rewritten = 1 << 0, // methods rewritten.
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235 _misc_has_nonstatic_fields = 1 << 1, // for sizing with UseCompressedOops
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236 _misc_should_verify_class = 1 << 2, // allow caching of preverification
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237 _misc_is_anonymous = 1 << 3, // has embedded _inner_classes field
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238 _misc_is_contended = 1 << 4, // marked with contended annotation
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239 _misc_has_default_methods = 1 << 5 // class/superclass/implemented interfaces has default methods
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240 };
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241 u2 _misc_flags;
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242 u2 _minor_version; // minor version number of class file
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243 u2 _major_version; // major version number of class file
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244 Thread* _init_thread; // Pointer to current thread doing initialization (to handle recusive initialization)
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245 int _vtable_len; // length of Java vtable (in words)
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246 int _itable_len; // length of Java itable (in words)
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247 OopMapCache* volatile _oop_map_cache; // OopMapCache for all methods in the klass (allocated lazily)
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248 JNIid* _jni_ids; // First JNI identifier for static fields in this class
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249 jmethodID* _methods_jmethod_ids; // jmethodIDs corresponding to method_idnum, or NULL if none
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250 int* _methods_cached_itable_indices; // itable_index cache for JNI invoke corresponding to methods idnum, or NULL
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251 nmethodBucket* _dependencies; // list of dependent nmethods
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252 nmethod* _osr_nmethods_head; // Head of list of on-stack replacement nmethods for this class
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253 BreakpointInfo* _breakpoints; // bpt lists, managed by Method*
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254 // Array of interesting part(s) of the previous version(s) of this
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255 // InstanceKlass. See PreviousVersionWalker below.
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256 GrowableArray<PreviousVersionNode *>* _previous_versions;
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257 // JVMTI fields can be moved to their own structure - see 6315920
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258 unsigned char * _cached_class_file_bytes; // JVMTI: cached class file, before retransformable agent modified it in CFLH
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259 jint _cached_class_file_len; // JVMTI: length of above
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260
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261 volatile u2 _idnum_allocated_count; // JNI/JVMTI: increments with the addition of methods, old ids don't change
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262
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263 // Class states are defined as ClassState (see above).
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264 // Place the _init_state here to utilize the unused 2-byte after
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265 // _idnum_allocated_count.
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266 u1 _init_state; // state of class
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267 u1 _reference_type; // reference type
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268
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269
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270 JvmtiCachedClassFieldMap* _jvmti_cached_class_field_map; // JVMTI: used during heap iteration
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271
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272 NOT_PRODUCT(int _verify_count;) // to avoid redundant verifies
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273
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274 // Method array.
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275 Array<Method*>* _methods;
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276 // Interface (Klass*s) this class declares locally to implement.
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277 Array<Klass*>* _local_interfaces;
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278 // Interface (Klass*s) this class implements transitively.
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279 Array<Klass*>* _transitive_interfaces;
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280 // Int array containing the original order of method in the class file (for JVMTI).
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281 Array<int>* _method_ordering;
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282 // Instance and static variable information, starts with 6-tuples of shorts
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283 // [access, name index, sig index, initval index, low_offset, high_offset]
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284 // for all fields, followed by the generic signature data at the end of
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285 // the array. Only fields with generic signature attributes have the generic
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286 // signature data set in the array. The fields array looks like following:
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287 //
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288 // f1: [access, name index, sig index, initial value index, low_offset, high_offset]
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289 // f2: [access, name index, sig index, initial value index, low_offset, high_offset]
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290 // ...
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291 // fn: [access, name index, sig index, initial value index, low_offset, high_offset]
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292 // [generic signature index]
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293 // [generic signature index]
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294 // ...
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295 Array<u2>* _fields;
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296
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297 // embedded Java vtable follows here
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298 // embedded Java itables follows here
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299 // embedded static fields follows here
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300 // embedded nonstatic oop-map blocks follows here
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301 // embedded implementor of this interface follows here
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302 // The embedded implementor only exists if the current klass is an
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303 // iterface. The possible values of the implementor fall into following
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304 // three cases:
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305 // NULL: no implementor.
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306 // A Klass* that's not itself: one implementor.
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307 // Itsef: more than one implementors.
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308 // embedded host klass follows here
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309 // The embedded host klass only exists in an anonymous class for
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310 // dynamic language support (JSR 292 enabled). The host class grants
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311 // its access privileges to this class also. The host class is either
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312 // named, or a previously loaded anonymous class. A non-anonymous class
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313 // or an anonymous class loaded through normal classloading does not
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314 // have this embedded field.
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315 //
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316
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317 friend class SystemDictionary;
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318
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319 public:
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320 bool has_nonstatic_fields() const {
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321 return (_misc_flags & _misc_has_nonstatic_fields) != 0;
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322 }
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323 void set_has_nonstatic_fields(bool b) {
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324 if (b) {
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325 _misc_flags |= _misc_has_nonstatic_fields;
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326 } else {
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327 _misc_flags &= ~_misc_has_nonstatic_fields;
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328 }
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329 }
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330
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331 // field sizes
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332 int nonstatic_field_size() const { return _nonstatic_field_size; }
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333 void set_nonstatic_field_size(int size) { _nonstatic_field_size = size; }
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334
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335 int static_field_size() const { return _static_field_size; }
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336 void set_static_field_size(int size) { _static_field_size = size; }
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337
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338 int static_oop_field_count() const { return (int)_static_oop_field_count; }
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339 void set_static_oop_field_count(u2 size) { _static_oop_field_count = size; }
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340
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341 // Java vtable
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342 int vtable_length() const { return _vtable_len; }
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343 void set_vtable_length(int len) { _vtable_len = len; }
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344
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345 // Java itable
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346 int itable_length() const { return _itable_len; }
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347 void set_itable_length(int len) { _itable_len = len; }
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348
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349 // array klasses
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350 Klass* array_klasses() const { return _array_klasses; }
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351 void set_array_klasses(Klass* k) { _array_klasses = k; }
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352
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353 // methods
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354 Array<Method*>* methods() const { return _methods; }
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355 void set_methods(Array<Method*>* a) { _methods = a; }
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356 Method* method_with_idnum(int idnum);
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357
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358 // method ordering
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359 Array<int>* method_ordering() const { return _method_ordering; }
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360 void set_method_ordering(Array<int>* m) { _method_ordering = m; }
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361
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362 // interfaces
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363 Array<Klass*>* local_interfaces() const { return _local_interfaces; }
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364 void set_local_interfaces(Array<Klass*>* a) {
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365 guarantee(_local_interfaces == NULL || a == NULL, "Just checking");
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366 _local_interfaces = a; }
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367 Array<Klass*>* transitive_interfaces() const { return _transitive_interfaces; }
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368 void set_transitive_interfaces(Array<Klass*>* a) {
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369 guarantee(_transitive_interfaces == NULL || a == NULL, "Just checking");
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370 _transitive_interfaces = a; }
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371
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372 private:
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373 friend class fieldDescriptor;
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374 FieldInfo* field(int index) const { return FieldInfo::from_field_array(_fields, index); }
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375
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376 public:
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377 int field_offset (int index) const { return field(index)->offset(); }
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378 int field_access_flags(int index) const { return field(index)->access_flags(); }
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379 Symbol* field_name (int index) const { return field(index)->name(constants()); }
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380 Symbol* field_signature (int index) const { return field(index)->signature(constants()); }
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381
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382 // Number of Java declared fields
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383 int java_fields_count() const { return (int)_java_fields_count; }
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384
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385 Array<u2>* fields() const { return _fields; }
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386
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387 void set_fields(Array<u2>* f, u2 java_fields_count) {
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388 guarantee(_fields == NULL || f == NULL, "Just checking");
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389 _fields = f;
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390 _java_fields_count = java_fields_count;
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391 }
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392
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393 // inner classes
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394 Array<u2>* inner_classes() const { return _inner_classes; }
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395 void set_inner_classes(Array<u2>* f) { _inner_classes = f; }
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396
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397 enum InnerClassAttributeOffset {
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398 // From http://mirror.eng/products/jdk/1.1/docs/guide/innerclasses/spec/innerclasses.doc10.html#18814
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399 inner_class_inner_class_info_offset = 0,
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400 inner_class_outer_class_info_offset = 1,
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401 inner_class_inner_name_offset = 2,
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402 inner_class_access_flags_offset = 3,
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403 inner_class_next_offset = 4
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404 };
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405
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406 enum EnclosingMethodAttributeOffset {
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407 enclosing_method_class_index_offset = 0,
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408 enclosing_method_method_index_offset = 1,
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409 enclosing_method_attribute_size = 2
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410 };
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411
652
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412 // method override check
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413 bool is_override(methodHandle super_method, Handle targetclassloader, Symbol* targetclassname, TRAPS);
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414
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415 // package
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416 bool is_same_class_package(Klass* class2);
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417 bool is_same_class_package(oop classloader2, Symbol* classname2);
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418 static bool is_same_class_package(oop class_loader1, Symbol* class_name1, oop class_loader2, Symbol* class_name2);
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419
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420 // find an enclosing class (defined where original code was, in jvm.cpp!)
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421 Klass* compute_enclosing_class(bool* inner_is_member, TRAPS) {
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422 instanceKlassHandle self(THREAD, this);
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423 return compute_enclosing_class_impl(self, inner_is_member, THREAD);
665
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424 }
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425 static Klass* compute_enclosing_class_impl(instanceKlassHandle self,
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426 bool* inner_is_member, TRAPS);
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427
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428 // tell if two classes have the same enclosing class (at package level)
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429 bool is_same_package_member(Klass* class2, TRAPS) {
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430 instanceKlassHandle self(THREAD, this);
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431 return is_same_package_member_impl(self, class2, THREAD);
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432 }
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433 static bool is_same_package_member_impl(instanceKlassHandle self,
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434 Klass* class2, TRAPS);
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435
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436 // initialization state
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437 bool is_loaded() const { return _init_state >= loaded; }
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438 bool is_linked() const { return _init_state >= linked; }
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439 bool is_initialized() const { return _init_state == fully_initialized; }
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440 bool is_not_initialized() const { return _init_state < being_initialized; }
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441 bool is_being_initialized() const { return _init_state == being_initialized; }
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442 bool is_in_error_state() const { return _init_state == initialization_error; }
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443 bool is_reentrant_initialization(Thread *thread) { return thread == _init_thread; }
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444 ClassState init_state() { return (ClassState)_init_state; }
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445 bool is_rewritten() const { return (_misc_flags & _misc_rewritten) != 0; }
973
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446
ad6585fd4087 6830542: Performance: JVM_DefineClass already verified.
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447 // defineClass specified verification
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448 bool should_verify_class() const {
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449 return (_misc_flags & _misc_should_verify_class) != 0;
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450 }
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451 void set_should_verify_class(bool value) {
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452 if (value) {
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453 _misc_flags |= _misc_should_verify_class;
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454 } else {
8bafad97cd26 7158552: The instanceKlsss::_host_klass is only needed for anonymous class for JSR 292 support.
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455 _misc_flags &= ~_misc_should_verify_class;
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456 }
8bafad97cd26 7158552: The instanceKlsss::_host_klass is only needed for anonymous class for JSR 292 support.
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457 }
0
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458
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459 // marking
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dcubed
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460 bool is_marked_dependent() const { return _is_marked_dependent; }
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dcubed
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diff changeset
461 void set_is_marked_dependent(bool value) { _is_marked_dependent = value; }
0
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462
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463 // initialization (virtuals from Klass)
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464 bool should_be_initialized() const; // means that initialize should be called
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465 void initialize(TRAPS);
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466 void link_class(TRAPS);
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467 bool link_class_or_fail(TRAPS); // returns false on failure
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468 void unlink_class();
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469 void rewrite_class(TRAPS);
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coleenp
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470 void link_methods(TRAPS);
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471 Method* class_initializer();
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472
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473 // set the class to initialized if no static initializer is present
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474 void eager_initialize(Thread *thread);
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475
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476 // reference type
4899
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477 ReferenceType reference_type() const { return (ReferenceType)_reference_type; }
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diff changeset
478 void set_reference_type(ReferenceType t) {
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diff changeset
479 assert(t == (u1)t, "overflow");
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480 _reference_type = (u1)t;
a79cb7c55012 7132690: InstanceKlass:_reference_type should be u1 type
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481 }
0
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482
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diff changeset
483 static ByteSize reference_type_offset() { return in_ByteSize(offset_of(InstanceKlass, _reference_type)); }
3249
e1162778c1c8 7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents: 2376
diff changeset
484
0
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485 // find local field, returns true if found
2177
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coleenp
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diff changeset
486 bool find_local_field(Symbol* name, Symbol* sig, fieldDescriptor* fd) const;
0
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487 // find field in direct superinterfaces, returns the interface in which the field is defined
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coleenp
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diff changeset
488 Klass* find_interface_field(Symbol* name, Symbol* sig, fieldDescriptor* fd) const;
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489 // find field according to JVM spec 5.4.3.2, returns the klass in which the field is defined
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coleenp
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490 Klass* find_field(Symbol* name, Symbol* sig, fieldDescriptor* fd) const;
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491 // find instance or static fields according to JVM spec 5.4.3.2, returns the klass in which the field is defined
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coleenp
parents: 6203
diff changeset
492 Klass* find_field(Symbol* name, Symbol* sig, bool is_static, fieldDescriptor* fd) const;
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493
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diff changeset
494 // find a non-static or static field given its offset within the class.
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495 bool contains_field_offset(int offset) {
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ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 49
diff changeset
496 return instanceOopDesc::contains_field_offset(offset, nonstatic_field_size());
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497 }
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498
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499 bool find_local_field_from_offset(int offset, bool is_static, fieldDescriptor* fd) const;
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500 bool find_field_from_offset(int offset, bool is_static, fieldDescriptor* fd) const;
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501
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502 // find a local method (returns NULL if not found)
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coleenp
parents: 6203
diff changeset
503 Method* find_method(Symbol* name, Symbol* signature) const;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
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diff changeset
504 static Method* find_method(Array<Method*>* methods, Symbol* name, Symbol* signature);
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505
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506 // lookup operation (returns NULL if not found)
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coleenp
parents: 6203
diff changeset
507 Method* uncached_lookup_method(Symbol* name, Symbol* signature) const;
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508
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509 // lookup a method in all the interfaces that this class implements
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510 // (returns NULL if not found)
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coleenp
parents: 6203
diff changeset
511 Method* lookup_method_in_all_interfaces(Symbol* name, Symbol* signature) const;
0
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512
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kamg
parents: 6725
diff changeset
513 // Find method indices by name. If a method with the specified name is
4735d2c84362 7200776: Implement default methods in interfaces
kamg
parents: 6725
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514 // found the index to the first method is returned, and 'end' is filled in
4735d2c84362 7200776: Implement default methods in interfaces
kamg
parents: 6725
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515 // with the index of first non-name-matching method. If no method is found
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kamg
parents: 6725
diff changeset
516 // -1 is returned.
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kamg
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diff changeset
517 int find_method_by_name(Symbol* name, int* end);
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kamg
parents: 6725
diff changeset
518 static int find_method_by_name(Array<Method*>* methods, Symbol* name, int* end);
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kamg
parents: 6725
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519
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520 // constant pool
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coleenp
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521 ConstantPool* constants() const { return _constants; }
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coleenp
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522 void set_constants(ConstantPool* c) { _constants = c; }
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523
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524 // protection domain
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525 oop protection_domain() { return _protection_domain; }
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coleenp
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diff changeset
526 void set_protection_domain(oop pd) { klass_oop_store(&_protection_domain, pd); }
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527
431
a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes
jrose
parents: 356
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528 // host class
6725
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coleenp
parents: 6203
diff changeset
529 Klass* host_klass() const {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
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530 Klass** hk = (Klass**)adr_host_klass();
6038
8bafad97cd26 7158552: The instanceKlsss::_host_klass is only needed for anonymous class for JSR 292 support.
jiangli
parents: 6006
diff changeset
531 if (hk == NULL) {
8bafad97cd26 7158552: The instanceKlsss::_host_klass is only needed for anonymous class for JSR 292 support.
jiangli
parents: 6006
diff changeset
532 return NULL;
8bafad97cd26 7158552: The instanceKlsss::_host_klass is only needed for anonymous class for JSR 292 support.
jiangli
parents: 6006
diff changeset
533 } else {
8bafad97cd26 7158552: The instanceKlsss::_host_klass is only needed for anonymous class for JSR 292 support.
jiangli
parents: 6006
diff changeset
534 return *hk;
8bafad97cd26 7158552: The instanceKlsss::_host_klass is only needed for anonymous class for JSR 292 support.
jiangli
parents: 6006
diff changeset
535 }
8bafad97cd26 7158552: The instanceKlsss::_host_klass is only needed for anonymous class for JSR 292 support.
jiangli
parents: 6006
diff changeset
536 }
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6203
diff changeset
537 void set_host_klass(Klass* host) {
6038
8bafad97cd26 7158552: The instanceKlsss::_host_klass is only needed for anonymous class for JSR 292 support.
jiangli
parents: 6006
diff changeset
538 assert(is_anonymous(), "not anonymous");
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6203
diff changeset
539 Klass** addr = (Klass**)adr_host_klass();
6038
8bafad97cd26 7158552: The instanceKlsss::_host_klass is only needed for anonymous class for JSR 292 support.
jiangli
parents: 6006
diff changeset
540 assert(addr != NULL, "no reversed space");
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6203
diff changeset
541 *addr = host;
6038
8bafad97cd26 7158552: The instanceKlsss::_host_klass is only needed for anonymous class for JSR 292 support.
jiangli
parents: 6006
diff changeset
542 }
8bafad97cd26 7158552: The instanceKlsss::_host_klass is only needed for anonymous class for JSR 292 support.
jiangli
parents: 6006
diff changeset
543 bool is_anonymous() const {
8bafad97cd26 7158552: The instanceKlsss::_host_klass is only needed for anonymous class for JSR 292 support.
jiangli
parents: 6006
diff changeset
544 return (_misc_flags & _misc_is_anonymous) != 0;
8bafad97cd26 7158552: The instanceKlsss::_host_klass is only needed for anonymous class for JSR 292 support.
jiangli
parents: 6006
diff changeset
545 }
8bafad97cd26 7158552: The instanceKlsss::_host_klass is only needed for anonymous class for JSR 292 support.
jiangli
parents: 6006
diff changeset
546 void set_is_anonymous(bool value) {
8bafad97cd26 7158552: The instanceKlsss::_host_klass is only needed for anonymous class for JSR 292 support.
jiangli
parents: 6006
diff changeset
547 if (value) {
8bafad97cd26 7158552: The instanceKlsss::_host_klass is only needed for anonymous class for JSR 292 support.
jiangli
parents: 6006
diff changeset
548 _misc_flags |= _misc_is_anonymous;
8bafad97cd26 7158552: The instanceKlsss::_host_klass is only needed for anonymous class for JSR 292 support.
jiangli
parents: 6006
diff changeset
549 } else {
8bafad97cd26 7158552: The instanceKlsss::_host_klass is only needed for anonymous class for JSR 292 support.
jiangli
parents: 6006
diff changeset
550 _misc_flags &= ~_misc_is_anonymous;
8bafad97cd26 7158552: The instanceKlsss::_host_klass is only needed for anonymous class for JSR 292 support.
jiangli
parents: 6006
diff changeset
551 }
8bafad97cd26 7158552: The instanceKlsss::_host_klass is only needed for anonymous class for JSR 292 support.
jiangli
parents: 6006
diff changeset
552 }
431
a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes
jrose
parents: 356
diff changeset
553
7409
30866cd626b0 8004883: NPG: clean up anonymous class fix
coleenp
parents: 6972
diff changeset
554 // Oop that keeps the metadata for this class from being unloaded
30866cd626b0 8004883: NPG: clean up anonymous class fix
coleenp
parents: 6972
diff changeset
555 // in places where the metadata is stored in other places, like nmethods
30866cd626b0 8004883: NPG: clean up anonymous class fix
coleenp
parents: 6972
diff changeset
556 oop klass_holder() const {
30866cd626b0 8004883: NPG: clean up anonymous class fix
coleenp
parents: 6972
diff changeset
557 return is_anonymous() ? java_mirror() : class_loader();
30866cd626b0 8004883: NPG: clean up anonymous class fix
coleenp
parents: 6972
diff changeset
558 }
30866cd626b0 8004883: NPG: clean up anonymous class fix
coleenp
parents: 6972
diff changeset
559
7587
4a916f2ce331 8003985: Support @Contended Annotation - JEP 142
jwilhelm
parents: 7465
diff changeset
560 bool is_contended() const {
4a916f2ce331 8003985: Support @Contended Annotation - JEP 142
jwilhelm
parents: 7465
diff changeset
561 return (_misc_flags & _misc_is_contended) != 0;
4a916f2ce331 8003985: Support @Contended Annotation - JEP 142
jwilhelm
parents: 7465
diff changeset
562 }
4a916f2ce331 8003985: Support @Contended Annotation - JEP 142
jwilhelm
parents: 7465
diff changeset
563 void set_is_contended(bool value) {
4a916f2ce331 8003985: Support @Contended Annotation - JEP 142
jwilhelm
parents: 7465
diff changeset
564 if (value) {
4a916f2ce331 8003985: Support @Contended Annotation - JEP 142
jwilhelm
parents: 7465
diff changeset
565 _misc_flags |= _misc_is_contended;
4a916f2ce331 8003985: Support @Contended Annotation - JEP 142
jwilhelm
parents: 7465
diff changeset
566 } else {
4a916f2ce331 8003985: Support @Contended Annotation - JEP 142
jwilhelm
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diff changeset
567 _misc_flags &= ~_misc_is_contended;
4a916f2ce331 8003985: Support @Contended Annotation - JEP 142
jwilhelm
parents: 7465
diff changeset
568 }
4a916f2ce331 8003985: Support @Contended Annotation - JEP 142
jwilhelm
parents: 7465
diff changeset
569 }
4a916f2ce331 8003985: Support @Contended Annotation - JEP 142
jwilhelm
parents: 7465
diff changeset
570
0
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diff changeset
571 // signers
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diff changeset
572 objArrayOop signers() const { return _signers; }
6725
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coleenp
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diff changeset
573 void set_signers(objArrayOop s) { klass_oop_store((oop*)&_signers, s); }
0
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574
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diff changeset
575 // source file name
2177
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coleenp
parents: 1972
diff changeset
576 Symbol* source_file_name() const { return _source_file_name; }
3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
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diff changeset
577 void set_source_file_name(Symbol* n);
0
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578
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parents:
diff changeset
579 // minor and major version numbers of class file
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parents:
diff changeset
580 u2 minor_version() const { return _minor_version; }
a61af66fc99e Initial load
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diff changeset
581 void set_minor_version(u2 minor_version) { _minor_version = minor_version; }
a61af66fc99e Initial load
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parents:
diff changeset
582 u2 major_version() const { return _major_version; }
a61af66fc99e Initial load
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parents:
diff changeset
583 void set_major_version(u2 major_version) { _major_version = major_version; }
a61af66fc99e Initial load
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parents:
diff changeset
584
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parents:
diff changeset
585 // source debug extension
6203
04ade88d9712 6294277: java -Xdebug crashes on SourceDebugExtension attribute larger than 64K
fparain
parents: 6197
diff changeset
586 char* source_debug_extension() const { return _source_debug_extension; }
04ade88d9712 6294277: java -Xdebug crashes on SourceDebugExtension attribute larger than 64K
fparain
parents: 6197
diff changeset
587 void set_source_debug_extension(char* array, int length);
2177
3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 1972
diff changeset
588
3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 1972
diff changeset
589 // symbol unloading support (refcount already added)
3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 1972
diff changeset
590 Symbol* array_name() { return _array_name; }
8712
3efdfd6ddbf2 8003553: NPG: metaspace objects should be zeroed in constructors
coleenp
parents: 8031
diff changeset
591 void set_array_name(Symbol* name) { assert(_array_name == NULL || name == NULL, "name already created"); _array_name = name; }
0
a61af66fc99e Initial load
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parents:
diff changeset
592
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parents:
diff changeset
593 // nonstatic oop-map blocks
939
9eebd3ac74cf 6845368: large objects cause a crash or unexpected exception
jcoomes
parents: 938
diff changeset
594 static int nonstatic_oop_map_size(unsigned int oop_map_count) {
938
b37c246bf7ce 6861660: OopMapBlock count/size confusion
jcoomes
parents: 726
diff changeset
595 return oop_map_count * OopMapBlock::size_in_words();
b37c246bf7ce 6861660: OopMapBlock count/size confusion
jcoomes
parents: 726
diff changeset
596 }
939
9eebd3ac74cf 6845368: large objects cause a crash or unexpected exception
jcoomes
parents: 938
diff changeset
597 unsigned int nonstatic_oop_map_count() const {
938
b37c246bf7ce 6861660: OopMapBlock count/size confusion
jcoomes
parents: 726
diff changeset
598 return _nonstatic_oop_map_size / OopMapBlock::size_in_words();
b37c246bf7ce 6861660: OopMapBlock count/size confusion
jcoomes
parents: 726
diff changeset
599 }
b37c246bf7ce 6861660: OopMapBlock count/size confusion
jcoomes
parents: 726
diff changeset
600 int nonstatic_oop_map_size() const { return _nonstatic_oop_map_size; }
b37c246bf7ce 6861660: OopMapBlock count/size confusion
jcoomes
parents: 726
diff changeset
601 void set_nonstatic_oop_map_size(int words) {
b37c246bf7ce 6861660: OopMapBlock count/size confusion
jcoomes
parents: 726
diff changeset
602 _nonstatic_oop_map_size = words;
b37c246bf7ce 6861660: OopMapBlock count/size confusion
jcoomes
parents: 726
diff changeset
603 }
0
a61af66fc99e Initial load
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parents:
diff changeset
604
a61af66fc99e Initial load
duke
parents:
diff changeset
605 // RedefineClasses() support for previous versions:
a61af66fc99e Initial load
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parents:
diff changeset
606 void add_previous_version(instanceKlassHandle ikh, BitMap *emcp_methods,
a61af66fc99e Initial load
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parents:
diff changeset
607 int emcp_method_count);
977
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 975
diff changeset
608 // If the _previous_versions array is non-NULL, then this klass
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 975
diff changeset
609 // has been redefined at least once even if we aren't currently
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 975
diff changeset
610 // tracking a previous version.
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 975
diff changeset
611 bool has_been_redefined() const { return _previous_versions != NULL; }
0
a61af66fc99e Initial load
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parents:
diff changeset
612 bool has_previous_version() const;
a61af66fc99e Initial load
duke
parents:
diff changeset
613 void init_previous_versions() {
a61af66fc99e Initial load
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parents:
diff changeset
614 _previous_versions = NULL;
a61af66fc99e Initial load
duke
parents:
diff changeset
615 }
a61af66fc99e Initial load
duke
parents:
diff changeset
616 GrowableArray<PreviousVersionNode *>* previous_versions() const {
a61af66fc99e Initial load
duke
parents:
diff changeset
617 return _previous_versions;
a61af66fc99e Initial load
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parents:
diff changeset
618 }
a61af66fc99e Initial load
duke
parents:
diff changeset
619
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6203
diff changeset
620 static void purge_previous_versions(InstanceKlass* ik);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6203
diff changeset
621
0
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parents:
diff changeset
622 // JVMTI: Support for caching a class file before it is modified by an agent that can do retransformation
a61af66fc99e Initial load
duke
parents:
diff changeset
623 void set_cached_class_file(unsigned char *class_file_bytes,
a61af66fc99e Initial load
duke
parents:
diff changeset
624 jint class_file_len) { _cached_class_file_len = class_file_len;
a61af66fc99e Initial load
duke
parents:
diff changeset
625 _cached_class_file_bytes = class_file_bytes; }
a61af66fc99e Initial load
duke
parents:
diff changeset
626 jint get_cached_class_file_len() { return _cached_class_file_len; }
a61af66fc99e Initial load
duke
parents:
diff changeset
627 unsigned char * get_cached_class_file_bytes() { return _cached_class_file_bytes; }
a61af66fc99e Initial load
duke
parents:
diff changeset
628
a61af66fc99e Initial load
duke
parents:
diff changeset
629 // JVMTI: Support for caching of field indices, types, and offsets
a61af66fc99e Initial load
duke
parents:
diff changeset
630 void set_jvmti_cached_class_field_map(JvmtiCachedClassFieldMap* descriptor) {
a61af66fc99e Initial load
duke
parents:
diff changeset
631 _jvmti_cached_class_field_map = descriptor;
a61af66fc99e Initial load
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parents:
diff changeset
632 }
a61af66fc99e Initial load
duke
parents:
diff changeset
633 JvmtiCachedClassFieldMap* jvmti_cached_class_field_map() const {
a61af66fc99e Initial load
duke
parents:
diff changeset
634 return _jvmti_cached_class_field_map;
a61af66fc99e Initial load
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parents:
diff changeset
635 }
a61af66fc99e Initial load
duke
parents:
diff changeset
636
7593
337e1dd9d902 8005895: Inefficient InstanceKlass field packing wasts memory.
jiangli
parents: 7465
diff changeset
637 bool has_default_methods() const {
337e1dd9d902 8005895: Inefficient InstanceKlass field packing wasts memory.
jiangli
parents: 7465
diff changeset
638 return (_misc_flags & _misc_has_default_methods) != 0;
337e1dd9d902 8005895: Inefficient InstanceKlass field packing wasts memory.
jiangli
parents: 7465
diff changeset
639 }
337e1dd9d902 8005895: Inefficient InstanceKlass field packing wasts memory.
jiangli
parents: 7465
diff changeset
640 void set_has_default_methods(bool b) {
337e1dd9d902 8005895: Inefficient InstanceKlass field packing wasts memory.
jiangli
parents: 7465
diff changeset
641 if (b) {
337e1dd9d902 8005895: Inefficient InstanceKlass field packing wasts memory.
jiangli
parents: 7465
diff changeset
642 _misc_flags |= _misc_has_default_methods;
337e1dd9d902 8005895: Inefficient InstanceKlass field packing wasts memory.
jiangli
parents: 7465
diff changeset
643 } else {
337e1dd9d902 8005895: Inefficient InstanceKlass field packing wasts memory.
jiangli
parents: 7465
diff changeset
644 _misc_flags &= ~_misc_has_default_methods;
337e1dd9d902 8005895: Inefficient InstanceKlass field packing wasts memory.
jiangli
parents: 7465
diff changeset
645 }
337e1dd9d902 8005895: Inefficient InstanceKlass field packing wasts memory.
jiangli
parents: 7465
diff changeset
646 }
6934
4735d2c84362 7200776: Implement default methods in interfaces
kamg
parents: 6725
diff changeset
647
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6203
diff changeset
648 // for adding methods, ConstMethod::UNSET_IDNUM means no more ids available
0
a61af66fc99e Initial load
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parents:
diff changeset
649 inline u2 next_method_idnum();
a61af66fc99e Initial load
duke
parents:
diff changeset
650 void set_initial_method_idnum(u2 value) { _idnum_allocated_count = value; }
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651
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652 // generics support
2177
3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 1972
diff changeset
653 Symbol* generic_signature() const { return _generic_signature; }
3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 1972
diff changeset
654 void set_generic_signature(Symbol* sig) { _generic_signature = sig; }
3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 1972
diff changeset
655
5967
f7c4174b33ba 7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents: 4901
diff changeset
656 u2 enclosing_method_data(int offset);
f7c4174b33ba 7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents: 4901
diff changeset
657 u2 enclosing_method_class_index() {
f7c4174b33ba 7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents: 4901
diff changeset
658 return enclosing_method_data(enclosing_method_class_index_offset);
f7c4174b33ba 7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents: 4901
diff changeset
659 }
f7c4174b33ba 7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents: 4901
diff changeset
660 u2 enclosing_method_method_index() {
f7c4174b33ba 7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents: 4901
diff changeset
661 return enclosing_method_data(enclosing_method_method_index_offset);
f7c4174b33ba 7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents: 4901
diff changeset
662 }
0
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parents:
diff changeset
663 void set_enclosing_method_indices(u2 class_index,
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jiangli
parents: 4901
diff changeset
664 u2 method_index);
0
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parents:
diff changeset
665
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diff changeset
666 // jmethodID support
977
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 975
diff changeset
667 static jmethodID get_jmethod_id(instanceKlassHandle ik_h,
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 975
diff changeset
668 methodHandle method_h);
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 975
diff changeset
669 static jmethodID get_jmethod_id_fetch_or_update(instanceKlassHandle ik_h,
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 975
diff changeset
670 size_t idnum, jmethodID new_id, jmethodID* new_jmeths,
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 975
diff changeset
671 jmethodID* to_dealloc_id_p,
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 975
diff changeset
672 jmethodID** to_dealloc_jmeths_p);
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 975
diff changeset
673 static void get_jmethod_id_length_value(jmethodID* cache, size_t idnum,
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 975
diff changeset
674 size_t *length_p, jmethodID* id_p);
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coleenp
parents: 6203
diff changeset
675 jmethodID jmethod_id_or_null(Method* method);
0
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parents:
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676
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diff changeset
677 // cached itable index support
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diff changeset
678 void set_cached_itable_index(size_t idnum, int index);
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679 int cached_itable_index(size_t idnum);
a61af66fc99e Initial load
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parents:
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680
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parents:
diff changeset
681 // annotations support
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6203
diff changeset
682 Annotations* annotations() const { return _annotations; }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6203
diff changeset
683 void set_annotations(Annotations* anno) { _annotations = anno; }
8031
927a311d00f9 8007320: NPG: move method annotations
coleenp
parents: 8003
diff changeset
684
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6203
diff changeset
685 AnnotationArray* class_annotations() const {
8031
927a311d00f9 8007320: NPG: move method annotations
coleenp
parents: 8003
diff changeset
686 return (_annotations != NULL) ? _annotations->class_annotations() : NULL;
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6203
diff changeset
687 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6203
diff changeset
688 Array<AnnotationArray*>* fields_annotations() const {
8031
927a311d00f9 8007320: NPG: move method annotations
coleenp
parents: 8003
diff changeset
689 return (_annotations != NULL) ? _annotations->fields_annotations() : NULL;
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6203
diff changeset
690 }
8031
927a311d00f9 8007320: NPG: move method annotations
coleenp
parents: 8003
diff changeset
691 AnnotationArray* class_type_annotations() const {
927a311d00f9 8007320: NPG: move method annotations
coleenp
parents: 8003
diff changeset
692 return (_annotations != NULL) ? _annotations->class_type_annotations() : NULL;
7457
35431a769282 8004823: Add VM support for type annotation reflection
stefank
parents: 7409
diff changeset
693 }
8031
927a311d00f9 8007320: NPG: move method annotations
coleenp
parents: 8003
diff changeset
694 Array<AnnotationArray*>* fields_type_annotations() const {
927a311d00f9 8007320: NPG: move method annotations
coleenp
parents: 8003
diff changeset
695 return (_annotations != NULL) ? _annotations->fields_type_annotations() : NULL;
927a311d00f9 8007320: NPG: move method annotations
coleenp
parents: 8003
diff changeset
696 }
0
a61af66fc99e Initial load
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parents:
diff changeset
697 // allocation
a61af66fc99e Initial load
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parents:
diff changeset
698 instanceOop allocate_instance(TRAPS);
a61af66fc99e Initial load
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parents:
diff changeset
699
a61af66fc99e Initial load
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parents:
diff changeset
700 // additional member function to return a handle
a61af66fc99e Initial load
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parents:
diff changeset
701 instanceHandle allocate_instance_handle(TRAPS) { return instanceHandle(THREAD, allocate_instance(THREAD)); }
a61af66fc99e Initial load
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parents:
diff changeset
702
a61af66fc99e Initial load
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parents:
diff changeset
703 objArrayOop allocate_objArray(int n, int length, TRAPS);
a61af66fc99e Initial load
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parents:
diff changeset
704 // Helper function
a61af66fc99e Initial load
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parents:
diff changeset
705 static instanceOop register_finalizer(instanceOop i, TRAPS);
a61af66fc99e Initial load
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parents:
diff changeset
706
a61af66fc99e Initial load
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parents:
diff changeset
707 // Check whether reflection/jni/jvm code is allowed to instantiate this class;
a61af66fc99e Initial load
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parents:
diff changeset
708 // if not, throw either an Error or an Exception.
a61af66fc99e Initial load
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parents:
diff changeset
709 virtual void check_valid_for_instantiation(bool throwError, TRAPS);
a61af66fc99e Initial load
duke
parents:
diff changeset
710
a61af66fc99e Initial load
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parents:
diff changeset
711 // initialization
a61af66fc99e Initial load
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parents:
diff changeset
712 void call_class_initializer(TRAPS);
a61af66fc99e Initial load
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parents:
diff changeset
713 void set_initialization_state_and_notify(ClassState state, TRAPS);
a61af66fc99e Initial load
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parents:
diff changeset
714
a61af66fc99e Initial load
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parents:
diff changeset
715 // OopMapCache support
a61af66fc99e Initial load
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parents:
diff changeset
716 OopMapCache* oop_map_cache() { return _oop_map_cache; }
a61af66fc99e Initial load
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parents:
diff changeset
717 void set_oop_map_cache(OopMapCache *cache) { _oop_map_cache = cache; }
a61af66fc99e Initial load
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parents:
diff changeset
718 void mask_for(methodHandle method, int bci, InterpreterOopMap* entry);
a61af66fc99e Initial load
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parents:
diff changeset
719
a61af66fc99e Initial load
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parents:
diff changeset
720 // JNI identifier support (for static fields - for jni performance)
a61af66fc99e Initial load
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parents:
diff changeset
721 JNIid* jni_ids() { return _jni_ids; }
a61af66fc99e Initial load
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parents:
diff changeset
722 void set_jni_ids(JNIid* ids) { _jni_ids = ids; }
a61af66fc99e Initial load
duke
parents:
diff changeset
723 JNIid* jni_id_for(int offset);
a61af66fc99e Initial load
duke
parents:
diff changeset
724
a61af66fc99e Initial load
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parents:
diff changeset
725 // maintenance of deoptimization dependencies
a61af66fc99e Initial load
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parents:
diff changeset
726 int mark_dependent_nmethods(DepChange& changes);
a61af66fc99e Initial load
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parents:
diff changeset
727 void add_dependent_nmethod(nmethod* nm);
a61af66fc99e Initial load
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parents:
diff changeset
728 void remove_dependent_nmethod(nmethod* nm);
a61af66fc99e Initial load
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parents:
diff changeset
729
a61af66fc99e Initial load
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parents:
diff changeset
730 // On-stack replacement support
a61af66fc99e Initial load
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parents:
diff changeset
731 nmethod* osr_nmethods_head() const { return _osr_nmethods_head; };
a61af66fc99e Initial load
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parents:
diff changeset
732 void set_osr_nmethods_head(nmethod* h) { _osr_nmethods_head = h; };
a61af66fc99e Initial load
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parents:
diff changeset
733 void add_osr_nmethod(nmethod* n);
a61af66fc99e Initial load
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parents:
diff changeset
734 void remove_osr_nmethod(nmethod* n);
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6203
diff changeset
735 nmethod* lookup_osr_nmethod(Method* const m, int bci, int level, bool match_level) const;
0
a61af66fc99e Initial load
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parents:
diff changeset
736
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6203
diff changeset
737 // Breakpoint support (see methods on Method* for details)
0
a61af66fc99e Initial load
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parents:
diff changeset
738 BreakpointInfo* breakpoints() const { return _breakpoints; };
a61af66fc99e Initial load
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parents:
diff changeset
739 void set_breakpoints(BreakpointInfo* bps) { _breakpoints = bps; };
a61af66fc99e Initial load
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parents:
diff changeset
740
a61af66fc99e Initial load
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parents:
diff changeset
741 // support for stub routines
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6203
diff changeset
742 static ByteSize init_state_offset() { return in_ByteSize(offset_of(InstanceKlass, _init_state)); }
6006
0105f367a14c 7160570: Intrinsification support for tracing framework
rbackman
parents: 5998
diff changeset
743 TRACE_DEFINE_OFFSET;
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6203
diff changeset
744 static ByteSize init_thread_offset() { return in_ByteSize(offset_of(InstanceKlass, _init_thread)); }
0
a61af66fc99e Initial load
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parents:
diff changeset
745
a61af66fc99e Initial load
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parents:
diff changeset
746 // subclass/subinterface checks
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6203
diff changeset
747 bool implements_interface(Klass* k) const;
0
a61af66fc99e Initial load
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parents:
diff changeset
748
5998
49036505ab5f 7154670: The instanceKlass _implementors[] and _nof_implementors are not needed for non-interface klass.
jiangli
parents: 5967
diff changeset
749 // Access to the implementor of an interface.
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6203
diff changeset
750 Klass* implementor() const
5998
49036505ab5f 7154670: The instanceKlass _implementors[] and _nof_implementors are not needed for non-interface klass.
jiangli
parents: 5967
diff changeset
751 {
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6203
diff changeset
752 Klass** k = adr_implementor();
5998
49036505ab5f 7154670: The instanceKlass _implementors[] and _nof_implementors are not needed for non-interface klass.
jiangli
parents: 5967
diff changeset
753 if (k == NULL) {
49036505ab5f 7154670: The instanceKlass _implementors[] and _nof_implementors are not needed for non-interface klass.
jiangli
parents: 5967
diff changeset
754 return NULL;
49036505ab5f 7154670: The instanceKlass _implementors[] and _nof_implementors are not needed for non-interface klass.
jiangli
parents: 5967
diff changeset
755 } else {
49036505ab5f 7154670: The instanceKlass _implementors[] and _nof_implementors are not needed for non-interface klass.
jiangli
parents: 5967
diff changeset
756 return *k;
49036505ab5f 7154670: The instanceKlass _implementors[] and _nof_implementors are not needed for non-interface klass.
jiangli
parents: 5967
diff changeset
757 }
0
a61af66fc99e Initial load
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parents:
diff changeset
758 }
5998
49036505ab5f 7154670: The instanceKlass _implementors[] and _nof_implementors are not needed for non-interface klass.
jiangli
parents: 5967
diff changeset
759
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6203
diff changeset
760 void set_implementor(Klass* k) {
5998
49036505ab5f 7154670: The instanceKlass _implementors[] and _nof_implementors are not needed for non-interface klass.
jiangli
parents: 5967
diff changeset
761 assert(is_interface(), "not interface");
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6203
diff changeset
762 Klass** addr = adr_implementor();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6203
diff changeset
763 *addr = k;
5998
49036505ab5f 7154670: The instanceKlass _implementors[] and _nof_implementors are not needed for non-interface klass.
jiangli
parents: 5967
diff changeset
764 }
49036505ab5f 7154670: The instanceKlass _implementors[] and _nof_implementors are not needed for non-interface klass.
jiangli
parents: 5967
diff changeset
765
49036505ab5f 7154670: The instanceKlass _implementors[] and _nof_implementors are not needed for non-interface klass.
jiangli
parents: 5967
diff changeset
766 int nof_implementors() const {
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6203
diff changeset
767 Klass* k = implementor();
5998
49036505ab5f 7154670: The instanceKlass _implementors[] and _nof_implementors are not needed for non-interface klass.
jiangli
parents: 5967
diff changeset
768 if (k == NULL) {
49036505ab5f 7154670: The instanceKlass _implementors[] and _nof_implementors are not needed for non-interface klass.
jiangli
parents: 5967
diff changeset
769 return 0;
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6203
diff changeset
770 } else if (k != this) {
5998
49036505ab5f 7154670: The instanceKlass _implementors[] and _nof_implementors are not needed for non-interface klass.
jiangli
parents: 5967
diff changeset
771 return 1;
49036505ab5f 7154670: The instanceKlass _implementors[] and _nof_implementors are not needed for non-interface klass.
jiangli
parents: 5967
diff changeset
772 } else {
49036505ab5f 7154670: The instanceKlass _implementors[] and _nof_implementors are not needed for non-interface klass.
jiangli
parents: 5967
diff changeset
773 return 2;
49036505ab5f 7154670: The instanceKlass _implementors[] and _nof_implementors are not needed for non-interface klass.
jiangli
parents: 5967
diff changeset
774 }
49036505ab5f 7154670: The instanceKlass _implementors[] and _nof_implementors are not needed for non-interface klass.
jiangli
parents: 5967
diff changeset
775 }
49036505ab5f 7154670: The instanceKlass _implementors[] and _nof_implementors are not needed for non-interface klass.
jiangli
parents: 5967
diff changeset
776
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6203
diff changeset
777 void add_implementor(Klass* k); // k is a new class that implements this interface
0
a61af66fc99e Initial load
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parents:
diff changeset
778 void init_implementor(); // initialize
a61af66fc99e Initial load
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parents:
diff changeset
779
a61af66fc99e Initial load
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parents:
diff changeset
780 // link this class into the implementors list of every interface it implements
a61af66fc99e Initial load
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parents:
diff changeset
781 void process_interfaces(Thread *thread);
a61af66fc99e Initial load
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parents:
diff changeset
782
a61af66fc99e Initial load
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parents:
diff changeset
783 // virtual operations from Klass
a61af66fc99e Initial load
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parents:
diff changeset
784 bool is_leaf_class() const { return _subklass == NULL; }
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6203
diff changeset
785 GrowableArray<Klass*>* compute_secondary_supers(int num_extra_slots);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6203
diff changeset
786 bool compute_is_subtype_of(Klass* k);
0
a61af66fc99e Initial load
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parents:
diff changeset
787 bool can_be_primary_super_slow() const;
a61af66fc99e Initial load
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parents:
diff changeset
788 int oop_size(oop obj) const { return size_helper(); }
a61af66fc99e Initial load
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parents:
diff changeset
789 bool oop_is_instance_slow() const { return true; }
a61af66fc99e Initial load
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parents:
diff changeset
790
a61af66fc99e Initial load
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parents:
diff changeset
791 // Iterators
a61af66fc99e Initial load
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parents:
diff changeset
792 void do_local_static_fields(FieldClosure* cl);
a61af66fc99e Initial load
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parents:
diff changeset
793 void do_nonstatic_fields(FieldClosure* cl); // including inherited fields
a61af66fc99e Initial load
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parents:
diff changeset
794 void do_local_static_fields(void f(fieldDescriptor*, TRAPS), TRAPS);
a61af66fc99e Initial load
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parents:
diff changeset
795
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6203
diff changeset
796 void methods_do(void f(Method* method));
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6203
diff changeset
797 void array_klasses_do(void f(Klass* k));
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6203
diff changeset
798 void array_klasses_do(void f(Klass* k, TRAPS), TRAPS);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6203
diff changeset
799 void with_array_klasses_do(void f(Klass* k));
0
a61af66fc99e Initial load
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parents:
diff changeset
800 bool super_types_do(SuperTypeClosure* blk);
a61af66fc99e Initial load
duke
parents:
diff changeset
801
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6203
diff changeset
802 // Casting from Klass*
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6203
diff changeset
803 static InstanceKlass* cast(Klass* k) {
2376
c7f3d0b4570f 7017732: move static fields into Class to prepare for perm gen removal
never
parents: 2357
diff changeset
804 assert(k->is_klass(), "must be");
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6203
diff changeset
805 assert(k->oop_is_instance(), "cast to InstanceKlass");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6203
diff changeset
806 return (InstanceKlass*) k;
0
a61af66fc99e Initial load
duke
parents:
diff changeset
807 }
a61af66fc99e Initial load
duke
parents:
diff changeset
808
6934
4735d2c84362 7200776: Implement default methods in interfaces
kamg
parents: 6725
diff changeset
809 InstanceKlass* java_super() const {
4735d2c84362 7200776: Implement default methods in interfaces
kamg
parents: 6725
diff changeset
810 return (super() == NULL) ? NULL : cast(super());
4735d2c84362 7200776: Implement default methods in interfaces
kamg
parents: 6725
diff changeset
811 }
4735d2c84362 7200776: Implement default methods in interfaces
kamg
parents: 6725
diff changeset
812
0
a61af66fc99e Initial load
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parents:
diff changeset
813 // Sizing (in words)
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6203
diff changeset
814 static int header_size() { return align_object_offset(sizeof(InstanceKlass)/HeapWordSize); }
8031
927a311d00f9 8007320: NPG: move method annotations
coleenp
parents: 8003
diff changeset
815
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da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6203
diff changeset
816 static int size(int vtable_length, int itable_length,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6203
diff changeset
817 int nonstatic_oop_map_size,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6203
diff changeset
818 bool is_interface, bool is_anonymous) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6203
diff changeset
819 return align_object_size(header_size() +
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6203
diff changeset
820 align_object_offset(vtable_length) +
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6203
diff changeset
821 align_object_offset(itable_length) +
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6203
diff changeset
822 ((is_interface || is_anonymous) ?
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6203
diff changeset
823 align_object_offset(nonstatic_oop_map_size) :
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6203
diff changeset
824 nonstatic_oop_map_size) +
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6203
diff changeset
825 (is_interface ? (int)sizeof(Klass*)/HeapWordSize : 0) +
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6203
diff changeset
826 (is_anonymous ? (int)sizeof(Klass*)/HeapWordSize : 0));
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6203
diff changeset
827 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6203
diff changeset
828 int size() const { return size(vtable_length(),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6203
diff changeset
829 itable_length(),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6203
diff changeset
830 nonstatic_oop_map_size(),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6203
diff changeset
831 is_interface(),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6203
diff changeset
832 is_anonymous());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6203
diff changeset
833 }
7956
16fb9f942703 6479360: PrintClassHistogram improvements
acorn
parents: 7596
diff changeset
834 #if INCLUDE_SERVICES
16fb9f942703 6479360: PrintClassHistogram improvements
acorn
parents: 7596
diff changeset
835 virtual void collect_statistics(KlassSizeStats *sz) const;
16fb9f942703 6479360: PrintClassHistogram improvements
acorn
parents: 7596
diff changeset
836 #endif
5998
49036505ab5f 7154670: The instanceKlass _implementors[] and _nof_implementors are not needed for non-interface klass.
jiangli
parents: 5967
diff changeset
837
0
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838 static int vtable_start_offset() { return header_size(); }
6725
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coleenp
parents: 6203
diff changeset
839 static int vtable_length_offset() { return offset_of(InstanceKlass, _vtable_len) / HeapWordSize; }
0
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parents:
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840
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diff changeset
841 intptr_t* start_of_vtable() const { return ((intptr_t*)this) + vtable_start_offset(); }
0
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842 intptr_t* start_of_itable() const { return start_of_vtable() + align_object_offset(vtable_length()); }
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coleenp
parents: 6203
diff changeset
843 int itable_offset_in_words() const { return start_of_itable() - (intptr_t*)this; }
0
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844
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diff changeset
845 intptr_t* end_of_itable() const { return start_of_itable() + itable_length(); }
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parents:
diff changeset
846
2376
c7f3d0b4570f 7017732: move static fields into Class to prepare for perm gen removal
never
parents: 2357
diff changeset
847 address static_field_addr(int offset);
113
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 49
diff changeset
848
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 49
diff changeset
849 OopMapBlock* start_of_nonstatic_oop_maps() const {
2376
c7f3d0b4570f 7017732: move static fields into Class to prepare for perm gen removal
never
parents: 2357
diff changeset
850 return (OopMapBlock*)(start_of_itable() + align_object_offset(itable_length()));
113
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 49
diff changeset
851 }
0
a61af66fc99e Initial load
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parents:
diff changeset
852
8031
927a311d00f9 8007320: NPG: move method annotations
coleenp
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diff changeset
853 Klass** end_of_nonstatic_oop_maps() const {
927a311d00f9 8007320: NPG: move method annotations
coleenp
parents: 8003
diff changeset
854 return (Klass**)(start_of_nonstatic_oop_maps() +
927a311d00f9 8007320: NPG: move method annotations
coleenp
parents: 8003
diff changeset
855 nonstatic_oop_map_count());
927a311d00f9 8007320: NPG: move method annotations
coleenp
parents: 8003
diff changeset
856 }
927a311d00f9 8007320: NPG: move method annotations
coleenp
parents: 8003
diff changeset
857
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6203
diff changeset
858 Klass** adr_implementor() const {
5998
49036505ab5f 7154670: The instanceKlass _implementors[] and _nof_implementors are not needed for non-interface klass.
jiangli
parents: 5967
diff changeset
859 if (is_interface()) {
8031
927a311d00f9 8007320: NPG: move method annotations
coleenp
parents: 8003
diff changeset
860 return (Klass**)end_of_nonstatic_oop_maps();
5998
49036505ab5f 7154670: The instanceKlass _implementors[] and _nof_implementors are not needed for non-interface klass.
jiangli
parents: 5967
diff changeset
861 } else {
49036505ab5f 7154670: The instanceKlass _implementors[] and _nof_implementors are not needed for non-interface klass.
jiangli
parents: 5967
diff changeset
862 return NULL;
49036505ab5f 7154670: The instanceKlass _implementors[] and _nof_implementors are not needed for non-interface klass.
jiangli
parents: 5967
diff changeset
863 }
49036505ab5f 7154670: The instanceKlass _implementors[] and _nof_implementors are not needed for non-interface klass.
jiangli
parents: 5967
diff changeset
864 };
49036505ab5f 7154670: The instanceKlass _implementors[] and _nof_implementors are not needed for non-interface klass.
jiangli
parents: 5967
diff changeset
865
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6203
diff changeset
866 Klass** adr_host_klass() const {
6038
8bafad97cd26 7158552: The instanceKlsss::_host_klass is only needed for anonymous class for JSR 292 support.
jiangli
parents: 6006
diff changeset
867 if (is_anonymous()) {
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6203
diff changeset
868 Klass** adr_impl = adr_implementor();
6038
8bafad97cd26 7158552: The instanceKlsss::_host_klass is only needed for anonymous class for JSR 292 support.
jiangli
parents: 6006
diff changeset
869 if (adr_impl != NULL) {
8bafad97cd26 7158552: The instanceKlsss::_host_klass is only needed for anonymous class for JSR 292 support.
jiangli
parents: 6006
diff changeset
870 return adr_impl + 1;
8bafad97cd26 7158552: The instanceKlsss::_host_klass is only needed for anonymous class for JSR 292 support.
jiangli
parents: 6006
diff changeset
871 } else {
8031
927a311d00f9 8007320: NPG: move method annotations
coleenp
parents: 8003
diff changeset
872 return end_of_nonstatic_oop_maps();
6038
8bafad97cd26 7158552: The instanceKlsss::_host_klass is only needed for anonymous class for JSR 292 support.
jiangli
parents: 6006
diff changeset
873 }
8bafad97cd26 7158552: The instanceKlsss::_host_klass is only needed for anonymous class for JSR 292 support.
jiangli
parents: 6006
diff changeset
874 } else {
8bafad97cd26 7158552: The instanceKlsss::_host_klass is only needed for anonymous class for JSR 292 support.
jiangli
parents: 6006
diff changeset
875 return NULL;
8bafad97cd26 7158552: The instanceKlsss::_host_klass is only needed for anonymous class for JSR 292 support.
jiangli
parents: 6006
diff changeset
876 }
8bafad97cd26 7158552: The instanceKlsss::_host_klass is only needed for anonymous class for JSR 292 support.
jiangli
parents: 6006
diff changeset
877 }
8bafad97cd26 7158552: The instanceKlsss::_host_klass is only needed for anonymous class for JSR 292 support.
jiangli
parents: 6006
diff changeset
878
0
a61af66fc99e Initial load
duke
parents:
diff changeset
879 // Allocation profiling support
a61af66fc99e Initial load
duke
parents:
diff changeset
880 juint alloc_size() const { return _alloc_count * size_helper(); }
a61af66fc99e Initial load
duke
parents:
diff changeset
881 void set_alloc_size(juint n) {}
a61af66fc99e Initial load
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parents:
diff changeset
882
a61af66fc99e Initial load
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parents:
diff changeset
883 // Use this to return the size of an instance in heap words:
a61af66fc99e Initial load
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parents:
diff changeset
884 int size_helper() const {
a61af66fc99e Initial load
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parents:
diff changeset
885 return layout_helper_to_size_helper(layout_helper());
a61af66fc99e Initial load
duke
parents:
diff changeset
886 }
a61af66fc99e Initial load
duke
parents:
diff changeset
887
a61af66fc99e Initial load
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parents:
diff changeset
888 // This bit is initialized in classFileParser.cpp.
a61af66fc99e Initial load
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parents:
diff changeset
889 // It is false under any of the following conditions:
a61af66fc99e Initial load
duke
parents:
diff changeset
890 // - the class is abstract (including any interface)
a61af66fc99e Initial load
duke
parents:
diff changeset
891 // - the class has a finalizer (if !RegisterFinalizersAtInit)
a61af66fc99e Initial load
duke
parents:
diff changeset
892 // - the class size is larger than FastAllocateSizeLimit
a61af66fc99e Initial load
duke
parents:
diff changeset
893 // - the class is java/lang/Class, which cannot be allocated directly
a61af66fc99e Initial load
duke
parents:
diff changeset
894 bool can_be_fastpath_allocated() const {
a61af66fc99e Initial load
duke
parents:
diff changeset
895 return !layout_helper_needs_slow_path(layout_helper());
a61af66fc99e Initial load
duke
parents:
diff changeset
896 }
a61af66fc99e Initial load
duke
parents:
diff changeset
897
a61af66fc99e Initial load
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parents:
diff changeset
898 // Java vtable/itable
a61af66fc99e Initial load
duke
parents:
diff changeset
899 klassVtable* vtable() const; // return new klassVtable wrapper
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6203
diff changeset
900 inline Method* method_at_vtable(int index);
0
a61af66fc99e Initial load
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parents:
diff changeset
901 klassItable* itable() const; // return new klassItable wrapper
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6203
diff changeset
902 Method* method_at_itable(Klass* holder, int index, TRAPS);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
903
a61af66fc99e Initial load
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parents:
diff changeset
904 // Garbage collection
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6203
diff changeset
905 virtual void oops_do(OopClosure* cl);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6203
diff changeset
906
0
a61af66fc99e Initial load
duke
parents:
diff changeset
907 void oop_follow_contents(oop obj);
a61af66fc99e Initial load
duke
parents:
diff changeset
908 int oop_adjust_pointers(oop obj);
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6203
diff changeset
909
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6203
diff changeset
910 void clean_implementors_list(BoolObjectClosure* is_alive);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6203
diff changeset
911 void clean_method_data(BoolObjectClosure* is_alive);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
912
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6203
diff changeset
913 // Explicit metaspace deallocation of fields
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6203
diff changeset
914 // For RedefineClasses, we need to deallocate instanceKlasses
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6203
diff changeset
915 void deallocate_contents(ClassLoaderData* loader_data);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6203
diff changeset
916
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6203
diff changeset
917 // The constant pool is on stack if any of the methods are executing or
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6203
diff changeset
918 // referenced by handles.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6203
diff changeset
919 bool on_stack() const { return _constants->on_stack(); }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6203
diff changeset
920
0
a61af66fc99e Initial load
duke
parents:
diff changeset
921 void release_C_heap_structures();
a61af66fc99e Initial load
duke
parents:
diff changeset
922
a61af66fc99e Initial load
duke
parents:
diff changeset
923 // Parallel Scavenge and Parallel Old
a61af66fc99e Initial load
duke
parents:
diff changeset
924 PARALLEL_GC_DECLS
a61af66fc99e Initial load
duke
parents:
diff changeset
925
a61af66fc99e Initial load
duke
parents:
diff changeset
926 // Naming
1039
987e948ebbc8 6815692: method handle code needs some cleanup (post-6655638)
jrose
parents: 977
diff changeset
927 const char* signature_name() const;
0
a61af66fc99e Initial load
duke
parents:
diff changeset
928
a61af66fc99e Initial load
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parents:
diff changeset
929 // Iterators
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6203
diff changeset
930 int oop_oop_iterate(oop obj, ExtendedOopClosure* blk) {
0
a61af66fc99e Initial load
duke
parents:
diff changeset
931 return oop_oop_iterate_v(obj, blk);
a61af66fc99e Initial load
duke
parents:
diff changeset
932 }
a61af66fc99e Initial load
duke
parents:
diff changeset
933
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6203
diff changeset
934 int oop_oop_iterate_m(oop obj, ExtendedOopClosure* blk, MemRegion mr) {
0
a61af66fc99e Initial load
duke
parents:
diff changeset
935 return oop_oop_iterate_v_m(obj, blk, mr);
a61af66fc99e Initial load
duke
parents:
diff changeset
936 }
a61af66fc99e Initial load
duke
parents:
diff changeset
937
342
37f87013dfd8 6711316: Open source the Garbage-First garbage collector
ysr
parents: 113
diff changeset
938 #define InstanceKlass_OOP_OOP_ITERATE_DECL(OopClosureType, nv_suffix) \
37f87013dfd8 6711316: Open source the Garbage-First garbage collector
ysr
parents: 113
diff changeset
939 int oop_oop_iterate##nv_suffix(oop obj, OopClosureType* blk); \
37f87013dfd8 6711316: Open source the Garbage-First garbage collector
ysr
parents: 113
diff changeset
940 int oop_oop_iterate##nv_suffix##_m(oop obj, OopClosureType* blk, \
0
a61af66fc99e Initial load
duke
parents:
diff changeset
941 MemRegion mr);
a61af66fc99e Initial load
duke
parents:
diff changeset
942
a61af66fc99e Initial load
duke
parents:
diff changeset
943 ALL_OOP_OOP_ITERATE_CLOSURES_1(InstanceKlass_OOP_OOP_ITERATE_DECL)
342
37f87013dfd8 6711316: Open source the Garbage-First garbage collector
ysr
parents: 113
diff changeset
944 ALL_OOP_OOP_ITERATE_CLOSURES_2(InstanceKlass_OOP_OOP_ITERATE_DECL)
37f87013dfd8 6711316: Open source the Garbage-First garbage collector
ysr
parents: 113
diff changeset
945
8001
db9981fd3124 8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents: 7596
diff changeset
946 #if INCLUDE_ALL_GCS
342
37f87013dfd8 6711316: Open source the Garbage-First garbage collector
ysr
parents: 113
diff changeset
947 #define InstanceKlass_OOP_OOP_ITERATE_BACKWARDS_DECL(OopClosureType, nv_suffix) \
37f87013dfd8 6711316: Open source the Garbage-First garbage collector
ysr
parents: 113
diff changeset
948 int oop_oop_iterate_backwards##nv_suffix(oop obj, OopClosureType* blk);
37f87013dfd8 6711316: Open source the Garbage-First garbage collector
ysr
parents: 113
diff changeset
949
37f87013dfd8 6711316: Open source the Garbage-First garbage collector
ysr
parents: 113
diff changeset
950 ALL_OOP_OOP_ITERATE_CLOSURES_1(InstanceKlass_OOP_OOP_ITERATE_BACKWARDS_DECL)
37f87013dfd8 6711316: Open source the Garbage-First garbage collector
ysr
parents: 113
diff changeset
951 ALL_OOP_OOP_ITERATE_CLOSURES_2(InstanceKlass_OOP_OOP_ITERATE_BACKWARDS_DECL)
8001
db9981fd3124 8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents: 7596
diff changeset
952 #endif // INCLUDE_ALL_GCS
0
a61af66fc99e Initial load
duke
parents:
diff changeset
953
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6203
diff changeset
954 u2 idnum_allocated_count() const { return _idnum_allocated_count; }
0
a61af66fc99e Initial load
duke
parents:
diff changeset
955 private:
a61af66fc99e Initial load
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parents:
diff changeset
956 // initialization state
a61af66fc99e Initial load
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parents:
diff changeset
957 #ifdef ASSERT
a61af66fc99e Initial load
duke
parents:
diff changeset
958 void set_init_state(ClassState state);
a61af66fc99e Initial load
duke
parents:
diff changeset
959 #else
4739
52b5d32fbfaf 7117052: instanceKlass::_init_state can be u1 type
coleenp
parents: 4737
diff changeset
960 void set_init_state(ClassState state) { _init_state = (u1)state; }
0
a61af66fc99e Initial load
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parents:
diff changeset
961 #endif
6038
8bafad97cd26 7158552: The instanceKlsss::_host_klass is only needed for anonymous class for JSR 292 support.
jiangli
parents: 6006
diff changeset
962 void set_rewritten() { _misc_flags |= _misc_rewritten; }
0
a61af66fc99e Initial load
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parents:
diff changeset
963 void set_init_thread(Thread *thread) { _init_thread = thread; }
a61af66fc99e Initial load
duke
parents:
diff changeset
964
977
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 975
diff changeset
965 // The RedefineClasses() API can cause new method idnums to be needed
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 975
diff changeset
966 // which will cause the caches to grow. Safety requires different
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 975
diff changeset
967 // cache management logic if the caches can grow instead of just
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 975
diff changeset
968 // going from NULL to non-NULL.
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 975
diff changeset
969 bool idnum_can_increment() const { return has_been_redefined(); }
0
a61af66fc99e Initial load
duke
parents:
diff changeset
970 jmethodID* methods_jmethod_ids_acquire() const
a61af66fc99e Initial load
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parents:
diff changeset
971 { return (jmethodID*)OrderAccess::load_ptr_acquire(&_methods_jmethod_ids); }
a61af66fc99e Initial load
duke
parents:
diff changeset
972 void release_set_methods_jmethod_ids(jmethodID* jmeths)
a61af66fc99e Initial load
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parents:
diff changeset
973 { OrderAccess::release_store_ptr(&_methods_jmethod_ids, jmeths); }
a61af66fc99e Initial load
duke
parents:
diff changeset
974
a61af66fc99e Initial load
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parents:
diff changeset
975 int* methods_cached_itable_indices_acquire() const
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diff changeset
976 { return (int*)OrderAccess::load_ptr_acquire(&_methods_cached_itable_indices); }
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diff changeset
977 void release_set_methods_cached_itable_indices(int* indices)
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978 { OrderAccess::release_store_ptr(&_methods_cached_itable_indices, indices); }
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979
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diff changeset
980 // Lock during initialization
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
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parents: 6203
diff changeset
981 volatile oop init_lock() const;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
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parents: 6203
diff changeset
982 void set_init_lock(oop value) { klass_oop_store(&_init_lock, value); }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
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diff changeset
983 void fence_and_clear_init_lock(); // after fully_initialized
0
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984
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985 // Offsets for memory management
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986 oop* adr_protection_domain() const { return (oop*)&this->_protection_domain;}
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987 oop* adr_signers() const { return (oop*)&this->_signers;}
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diff changeset
988 oop* adr_init_lock() const { return (oop*)&this->_init_lock;}
0
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989
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diff changeset
990 // Static methods that are used to implement member methods where an exposed this pointer
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diff changeset
991 // is needed due to possible GCs
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diff changeset
992 static bool link_class_impl (instanceKlassHandle this_oop, bool throw_verifyerror, TRAPS);
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diff changeset
993 static bool verify_code (instanceKlassHandle this_oop, bool throw_verifyerror, TRAPS);
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diff changeset
994 static void initialize_impl (instanceKlassHandle this_oop, TRAPS);
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diff changeset
995 static void eager_initialize_impl (instanceKlassHandle this_oop);
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996 static void set_initialization_state_and_notify_impl (instanceKlassHandle this_oop, ClassState state, TRAPS);
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997 static void call_class_initializer_impl (instanceKlassHandle this_oop, TRAPS);
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diff changeset
998 static Klass* array_klass_impl (instanceKlassHandle this_oop, bool or_null, int n, TRAPS);
0
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999 static void do_local_static_fields_impl (instanceKlassHandle this_oop, void f(fieldDescriptor* fd, TRAPS), TRAPS);
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diff changeset
1000 /* jni_id_for_impl for jfieldID only */
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diff changeset
1001 static JNIid* jni_id_for_impl (instanceKlassHandle this_oop, int offset);
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1002
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1003 // Returns the array class for the n'th dimension
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diff changeset
1004 Klass* array_klass_impl(bool or_null, int n, TRAPS);
0
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1005
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diff changeset
1006 // Returns the array class with this class as element type
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diff changeset
1007 Klass* array_klass_impl(bool or_null, TRAPS);
0
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1008
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1009 public:
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diff changeset
1010 // CDS support - remove and restore oops from metadata. Oops are not shared.
0
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1011 virtual void remove_unshareable_info();
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diff changeset
1012 virtual void restore_unshareable_info(TRAPS);
0
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1013
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1014 // jvm support
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diff changeset
1015 jint compute_modifier_flags(TRAPS) const;
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1016
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1017 public:
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1018 // JVMTI support
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1019 jint jvmti_class_status() const;
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1020
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1021 public:
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1022 // Printing
6725
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diff changeset
1023 #ifndef PRODUCT
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diff changeset
1024 void print_on(outputStream* st) const;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
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diff changeset
1025 #endif
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
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parents: 6203
diff changeset
1026 void print_value_on(outputStream* st) const;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
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parents: 6203
diff changeset
1027
1155
4e6abf09f540 6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents: 1126
diff changeset
1028 void oop_print_value_on(oop obj, outputStream* st);
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diff changeset
1029
1155
4e6abf09f540 6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents: 1126
diff changeset
1030 #ifndef PRODUCT
0
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1031 void oop_print_on (oop obj, outputStream* st);
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1032
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1033 void print_dependent_nmethods(bool verbose = false);
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1034 bool is_dependent_nmethod(nmethod* nm);
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diff changeset
1035 #endif
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1036
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parents: 6203
diff changeset
1037 const char* internal_name() const;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
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parents: 6203
diff changeset
1038
0
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parents:
diff changeset
1039 // Verification
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
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parents: 6203
diff changeset
1040 void verify_on(outputStream* st);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
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parents: 6203
diff changeset
1041
0
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diff changeset
1042 void oop_verify_on(oop obj, outputStream* st);
a61af66fc99e Initial load
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parents:
diff changeset
1043 };
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1044
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diff changeset
1045 inline Method* InstanceKlass::method_at_vtable(int index) {
0
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diff changeset
1046 #ifndef PRODUCT
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parents:
diff changeset
1047 assert(index >= 0, "valid vtable index");
a61af66fc99e Initial load
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parents:
diff changeset
1048 if (DebugVtables) {
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parents:
diff changeset
1049 verify_vtable_index(index);
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parents:
diff changeset
1050 }
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parents:
diff changeset
1051 #endif
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diff changeset
1052 vtableEntry* ve = (vtableEntry*)start_of_vtable();
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diff changeset
1053 return ve[index].method();
a61af66fc99e Initial load
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parents:
diff changeset
1054 }
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diff changeset
1055
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parents:
diff changeset
1056 // for adding methods
a61af66fc99e Initial load
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diff changeset
1057 // UNSET_IDNUM return means no more ids available
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
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parents: 6203
diff changeset
1058 inline u2 InstanceKlass::next_method_idnum() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6203
diff changeset
1059 if (_idnum_allocated_count == ConstMethod::MAX_IDNUM) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
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parents: 6203
diff changeset
1060 return ConstMethod::UNSET_IDNUM; // no more ids available
0
a61af66fc99e Initial load
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parents:
diff changeset
1061 } else {
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parents:
diff changeset
1062 return _idnum_allocated_count++;
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parents:
diff changeset
1063 }
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parents:
diff changeset
1064 }
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parents:
diff changeset
1065
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1066
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diff changeset
1067 /* JNIid class for jfieldIDs only */
6197
d2a62e0f25eb 6995781: Native Memory Tracking (Phase 1)
zgu
parents: 6100
diff changeset
1068 class JNIid: public CHeapObj<mtClass> {
0
a61af66fc99e Initial load
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parents:
diff changeset
1069 friend class VMStructs;
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diff changeset
1070 private:
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diff changeset
1071 Klass* _holder;
0
a61af66fc99e Initial load
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diff changeset
1072 JNIid* _next;
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diff changeset
1073 int _offset;
a61af66fc99e Initial load
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diff changeset
1074 #ifdef ASSERT
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diff changeset
1075 bool _is_static_field_id;
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parents:
diff changeset
1076 #endif
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1077
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diff changeset
1078 public:
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diff changeset
1079 // Accessors
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diff changeset
1080 Klass* holder() const { return _holder; }
0
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diff changeset
1081 int offset() const { return _offset; }
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diff changeset
1082 JNIid* next() { return _next; }
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parents:
diff changeset
1083 // Constructor
6725
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diff changeset
1084 JNIid(Klass* holder, int offset, JNIid* next);
0
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diff changeset
1085 // Identifier lookup
a61af66fc99e Initial load
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diff changeset
1086 JNIid* find(int offset);
a61af66fc99e Initial load
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diff changeset
1087
2376
c7f3d0b4570f 7017732: move static fields into Class to prepare for perm gen removal
never
parents: 2357
diff changeset
1088 bool find_local_field(fieldDescriptor* fd) {
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6203
diff changeset
1089 return InstanceKlass::cast(holder())->find_local_field_from_offset(offset(), true, fd);
2376
c7f3d0b4570f 7017732: move static fields into Class to prepare for perm gen removal
never
parents: 2357
diff changeset
1090 }
c7f3d0b4570f 7017732: move static fields into Class to prepare for perm gen removal
never
parents: 2357
diff changeset
1091
0
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diff changeset
1092 static void deallocate(JNIid* id);
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diff changeset
1093 // Debugging
a61af66fc99e Initial load
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parents:
diff changeset
1094 #ifdef ASSERT
a61af66fc99e Initial load
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diff changeset
1095 bool is_static_field_id() const { return _is_static_field_id; }
a61af66fc99e Initial load
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parents:
diff changeset
1096 void set_is_static_field_id() { _is_static_field_id = true; }
a61af66fc99e Initial load
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diff changeset
1097 #endif
6725
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diff changeset
1098 void verify(Klass* holder);
0
a61af66fc99e Initial load
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diff changeset
1099 };
a61af66fc99e Initial load
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diff changeset
1100
a61af66fc99e Initial load
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diff changeset
1101
a61af66fc99e Initial load
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parents:
diff changeset
1102 // If breakpoints are more numerous than just JVMTI breakpoints,
a61af66fc99e Initial load
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parents:
diff changeset
1103 // consider compressing this data structure.
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
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diff changeset
1104 // It is currently a simple linked list defined in method.hpp.
0
a61af66fc99e Initial load
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1105
a61af66fc99e Initial load
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parents:
diff changeset
1106 class BreakpointInfo;
a61af66fc99e Initial load
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diff changeset
1107
a61af66fc99e Initial load
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diff changeset
1108
a61af66fc99e Initial load
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diff changeset
1109 // A collection point for interesting information about the previous
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
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diff changeset
1110 // version(s) of an InstanceKlass. This class uses weak references to
0
a61af66fc99e Initial load
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parents:
diff changeset
1111 // the information so that the information may be collected as needed
47
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parents: 0
diff changeset
1112 // by the system. If the information is shared, then a regular
2c106685d6d0 6497639: 4/3 Profiling Swing application caused JVM crash
dcubed
parents: 0
diff changeset
1113 // reference must be used because a weak reference would be seen as
2c106685d6d0 6497639: 4/3 Profiling Swing application caused JVM crash
dcubed
parents: 0
diff changeset
1114 // collectible. A GrowableArray of PreviousVersionNodes is attached
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6203
diff changeset
1115 // to the InstanceKlass as needed. See PreviousVersionWalker below.
6197
d2a62e0f25eb 6995781: Native Memory Tracking (Phase 1)
zgu
parents: 6100
diff changeset
1116 class PreviousVersionNode : public CHeapObj<mtClass> {
0
a61af66fc99e Initial load
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diff changeset
1117 private:
47
2c106685d6d0 6497639: 4/3 Profiling Swing application caused JVM crash
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parents: 0
diff changeset
1118 // A shared ConstantPool is never collected so we'll always have
2c106685d6d0 6497639: 4/3 Profiling Swing application caused JVM crash
dcubed
parents: 0
diff changeset
1119 // a reference to it so we can update items in the cache. We'll
2c106685d6d0 6497639: 4/3 Profiling Swing application caused JVM crash
dcubed
parents: 0
diff changeset
1120 // have a weak reference to a non-shared ConstantPool until all
2c106685d6d0 6497639: 4/3 Profiling Swing application caused JVM crash
dcubed
parents: 0
diff changeset
1121 // of the methods (EMCP or obsolete) have been collected; the
2c106685d6d0 6497639: 4/3 Profiling Swing application caused JVM crash
dcubed
parents: 0
diff changeset
1122 // non-shared ConstantPool becomes collectible at that point.
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6203
diff changeset
1123 ConstantPool* _prev_constant_pool; // regular or weak reference
47
2c106685d6d0 6497639: 4/3 Profiling Swing application caused JVM crash
dcubed
parents: 0
diff changeset
1124 bool _prev_cp_is_weak; // true if not a shared ConstantPool
2c106685d6d0 6497639: 4/3 Profiling Swing application caused JVM crash
dcubed
parents: 0
diff changeset
1125
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
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diff changeset
1126 // If the previous version of the InstanceKlass doesn't have any
0
a61af66fc99e Initial load
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parents:
diff changeset
1127 // EMCP methods, then _prev_EMCP_methods will be NULL. If all the
a61af66fc99e Initial load
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parents:
diff changeset
1128 // EMCP methods have been collected, then _prev_EMCP_methods can
a61af66fc99e Initial load
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parents:
diff changeset
1129 // have a length of zero.
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
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diff changeset
1130 GrowableArray<Method*>* _prev_EMCP_methods;
0
a61af66fc99e Initial load
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parents:
diff changeset
1131
a61af66fc99e Initial load
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parents:
diff changeset
1132 public:
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coleenp
parents: 6203
diff changeset
1133 PreviousVersionNode(ConstantPool* prev_constant_pool, bool prev_cp_is_weak,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6203
diff changeset
1134 GrowableArray<Method*>* prev_EMCP_methods);
0
a61af66fc99e Initial load
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parents:
diff changeset
1135 ~PreviousVersionNode();
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da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
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diff changeset
1136 ConstantPool* prev_constant_pool() const {
0
a61af66fc99e Initial load
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parents:
diff changeset
1137 return _prev_constant_pool;
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parents:
diff changeset
1138 }
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
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parents: 6203
diff changeset
1139 GrowableArray<Method*>* prev_EMCP_methods() const {
0
a61af66fc99e Initial load
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parents:
diff changeset
1140 return _prev_EMCP_methods;
a61af66fc99e Initial load
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parents:
diff changeset
1141 }
a61af66fc99e Initial load
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parents:
diff changeset
1142 };
a61af66fc99e Initial load
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parents:
diff changeset
1143
a61af66fc99e Initial load
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parents:
diff changeset
1144
a61af66fc99e Initial load
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parents:
diff changeset
1145 // A Handle-ized version of PreviousVersionNode.
a61af66fc99e Initial load
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parents:
diff changeset
1146 class PreviousVersionInfo : public ResourceObj {
a61af66fc99e Initial load
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parents:
diff changeset
1147 private:
a61af66fc99e Initial load
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parents:
diff changeset
1148 constantPoolHandle _prev_constant_pool_handle;
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
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diff changeset
1149 // If the previous version of the InstanceKlass doesn't have any
0
a61af66fc99e Initial load
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parents:
diff changeset
1150 // EMCP methods, then _prev_EMCP_methods will be NULL. Since the
a61af66fc99e Initial load
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parents:
diff changeset
1151 // methods cannot be collected while we hold a handle,
a61af66fc99e Initial load
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parents:
diff changeset
1152 // _prev_EMCP_methods should never have a length of zero.
a61af66fc99e Initial load
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parents:
diff changeset
1153 GrowableArray<methodHandle>* _prev_EMCP_method_handles;
a61af66fc99e Initial load
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parents:
diff changeset
1154
a61af66fc99e Initial load
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parents:
diff changeset
1155 public:
a61af66fc99e Initial load
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parents:
diff changeset
1156 PreviousVersionInfo(PreviousVersionNode *pv_node);
a61af66fc99e Initial load
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parents:
diff changeset
1157 ~PreviousVersionInfo();
a61af66fc99e Initial load
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parents:
diff changeset
1158 constantPoolHandle prev_constant_pool_handle() const {
a61af66fc99e Initial load
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parents:
diff changeset
1159 return _prev_constant_pool_handle;
a61af66fc99e Initial load
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parents:
diff changeset
1160 }
a61af66fc99e Initial load
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parents:
diff changeset
1161 GrowableArray<methodHandle>* prev_EMCP_method_handles() const {
a61af66fc99e Initial load
duke
parents:
diff changeset
1162 return _prev_EMCP_method_handles;
a61af66fc99e Initial load
duke
parents:
diff changeset
1163 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1164 };
a61af66fc99e Initial load
duke
parents:
diff changeset
1165
a61af66fc99e Initial load
duke
parents:
diff changeset
1166
a61af66fc99e Initial load
duke
parents:
diff changeset
1167 // Helper object for walking previous versions. This helper cleans up
a61af66fc99e Initial load
duke
parents:
diff changeset
1168 // the Handles that it allocates when the helper object is destroyed.
a61af66fc99e Initial load
duke
parents:
diff changeset
1169 // The PreviousVersionInfo object returned by next_previous_version()
a61af66fc99e Initial load
duke
parents:
diff changeset
1170 // is only valid until a subsequent call to next_previous_version() or
a61af66fc99e Initial load
duke
parents:
diff changeset
1171 // the helper object is destroyed.
a61af66fc99e Initial load
duke
parents:
diff changeset
1172 class PreviousVersionWalker : public StackObj {
a61af66fc99e Initial load
duke
parents:
diff changeset
1173 private:
a61af66fc99e Initial load
duke
parents:
diff changeset
1174 GrowableArray<PreviousVersionNode *>* _previous_versions;
a61af66fc99e Initial load
duke
parents:
diff changeset
1175 int _current_index;
a61af66fc99e Initial load
duke
parents:
diff changeset
1176 // Fields for cleaning up when we are done walking the previous versions:
a61af66fc99e Initial load
duke
parents:
diff changeset
1177 // A HandleMark for the PreviousVersionInfo handles:
a61af66fc99e Initial load
duke
parents:
diff changeset
1178 HandleMark _hm;
a61af66fc99e Initial load
duke
parents:
diff changeset
1179
a61af66fc99e Initial load
duke
parents:
diff changeset
1180 // It would be nice to have a ResourceMark field in this helper also,
a61af66fc99e Initial load
duke
parents:
diff changeset
1181 // but the ResourceMark code says to be careful to delete handles held
a61af66fc99e Initial load
duke
parents:
diff changeset
1182 // in GrowableArrays _before_ deleting the GrowableArray. Since we
a61af66fc99e Initial load
duke
parents:
diff changeset
1183 // can't guarantee the order in which the fields are destroyed, we
a61af66fc99e Initial load
duke
parents:
diff changeset
1184 // have to let the creator of the PreviousVersionWalker object do
a61af66fc99e Initial load
duke
parents:
diff changeset
1185 // the right thing. Also, adding a ResourceMark here causes an
a61af66fc99e Initial load
duke
parents:
diff changeset
1186 // include loop.
a61af66fc99e Initial load
duke
parents:
diff changeset
1187
a61af66fc99e Initial load
duke
parents:
diff changeset
1188 // A pointer to the current info object so we can handle the deletes.
a61af66fc99e Initial load
duke
parents:
diff changeset
1189 PreviousVersionInfo * _current_p;
a61af66fc99e Initial load
duke
parents:
diff changeset
1190
a61af66fc99e Initial load
duke
parents:
diff changeset
1191 public:
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6203
diff changeset
1192 PreviousVersionWalker(InstanceKlass *ik);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1193 ~PreviousVersionWalker();
a61af66fc99e Initial load
duke
parents:
diff changeset
1194
a61af66fc99e Initial load
duke
parents:
diff changeset
1195 // Return the interesting information for the next previous version
a61af66fc99e Initial load
duke
parents:
diff changeset
1196 // of the klass. Returns NULL if there are no more previous versions.
a61af66fc99e Initial load
duke
parents:
diff changeset
1197 PreviousVersionInfo* next_previous_version();
a61af66fc99e Initial load
duke
parents:
diff changeset
1198 };
1972
f95d63e2154a 6989984: Use standard include model for Hospot
stefank
parents: 1783
diff changeset
1199
3939
f6f3bb0ee072 7088955: add C2 IR support to the SA
never
parents: 3938
diff changeset
1200
f6f3bb0ee072 7088955: add C2 IR support to the SA
never
parents: 3938
diff changeset
1201 //
f6f3bb0ee072 7088955: add C2 IR support to the SA
never
parents: 3938
diff changeset
1202 // nmethodBucket is used to record dependent nmethods for
f6f3bb0ee072 7088955: add C2 IR support to the SA
never
parents: 3938
diff changeset
1203 // deoptimization. nmethod dependencies are actually <klass, method>
f6f3bb0ee072 7088955: add C2 IR support to the SA
never
parents: 3938
diff changeset
1204 // pairs but we really only care about the klass part for purposes of
f6f3bb0ee072 7088955: add C2 IR support to the SA
never
parents: 3938
diff changeset
1205 // finding nmethods which might need to be deoptimized. Instead of
f6f3bb0ee072 7088955: add C2 IR support to the SA
never
parents: 3938
diff changeset
1206 // recording the method, a count of how many times a particular nmethod
f6f3bb0ee072 7088955: add C2 IR support to the SA
never
parents: 3938
diff changeset
1207 // was recorded is kept. This ensures that any recording errors are
f6f3bb0ee072 7088955: add C2 IR support to the SA
never
parents: 3938
diff changeset
1208 // noticed since an nmethod should be removed as many times are it's
f6f3bb0ee072 7088955: add C2 IR support to the SA
never
parents: 3938
diff changeset
1209 // added.
f6f3bb0ee072 7088955: add C2 IR support to the SA
never
parents: 3938
diff changeset
1210 //
6197
d2a62e0f25eb 6995781: Native Memory Tracking (Phase 1)
zgu
parents: 6100
diff changeset
1211 class nmethodBucket: public CHeapObj<mtClass> {
3939
f6f3bb0ee072 7088955: add C2 IR support to the SA
never
parents: 3938
diff changeset
1212 friend class VMStructs;
f6f3bb0ee072 7088955: add C2 IR support to the SA
never
parents: 3938
diff changeset
1213 private:
f6f3bb0ee072 7088955: add C2 IR support to the SA
never
parents: 3938
diff changeset
1214 nmethod* _nmethod;
f6f3bb0ee072 7088955: add C2 IR support to the SA
never
parents: 3938
diff changeset
1215 int _count;
f6f3bb0ee072 7088955: add C2 IR support to the SA
never
parents: 3938
diff changeset
1216 nmethodBucket* _next;
f6f3bb0ee072 7088955: add C2 IR support to the SA
never
parents: 3938
diff changeset
1217
f6f3bb0ee072 7088955: add C2 IR support to the SA
never
parents: 3938
diff changeset
1218 public:
f6f3bb0ee072 7088955: add C2 IR support to the SA
never
parents: 3938
diff changeset
1219 nmethodBucket(nmethod* nmethod, nmethodBucket* next) {
f6f3bb0ee072 7088955: add C2 IR support to the SA
never
parents: 3938
diff changeset
1220 _nmethod = nmethod;
f6f3bb0ee072 7088955: add C2 IR support to the SA
never
parents: 3938
diff changeset
1221 _next = next;
f6f3bb0ee072 7088955: add C2 IR support to the SA
never
parents: 3938
diff changeset
1222 _count = 1;
f6f3bb0ee072 7088955: add C2 IR support to the SA
never
parents: 3938
diff changeset
1223 }
f6f3bb0ee072 7088955: add C2 IR support to the SA
never
parents: 3938
diff changeset
1224 int count() { return _count; }
f6f3bb0ee072 7088955: add C2 IR support to the SA
never
parents: 3938
diff changeset
1225 int increment() { _count += 1; return _count; }
f6f3bb0ee072 7088955: add C2 IR support to the SA
never
parents: 3938
diff changeset
1226 int decrement() { _count -= 1; assert(_count >= 0, "don't underflow"); return _count; }
f6f3bb0ee072 7088955: add C2 IR support to the SA
never
parents: 3938
diff changeset
1227 nmethodBucket* next() { return _next; }
f6f3bb0ee072 7088955: add C2 IR support to the SA
never
parents: 3938
diff changeset
1228 void set_next(nmethodBucket* b) { _next = b; }
f6f3bb0ee072 7088955: add C2 IR support to the SA
never
parents: 3938
diff changeset
1229 nmethod* get_nmethod() { return _nmethod; }
f6f3bb0ee072 7088955: add C2 IR support to the SA
never
parents: 3938
diff changeset
1230 };
f6f3bb0ee072 7088955: add C2 IR support to the SA
never
parents: 3938
diff changeset
1231
5967
f7c4174b33ba 7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents: 4901
diff changeset
1232 // An iterator that's used to access the inner classes indices in the
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6203
diff changeset
1233 // InstanceKlass::_inner_classes array.
5967
f7c4174b33ba 7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents: 4901
diff changeset
1234 class InnerClassesIterator : public StackObj {
f7c4174b33ba 7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents: 4901
diff changeset
1235 private:
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6203
diff changeset
1236 Array<jushort>* _inner_classes;
5967
f7c4174b33ba 7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents: 4901
diff changeset
1237 int _length;
f7c4174b33ba 7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents: 4901
diff changeset
1238 int _idx;
f7c4174b33ba 7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents: 4901
diff changeset
1239 public:
f7c4174b33ba 7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents: 4901
diff changeset
1240
f7c4174b33ba 7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents: 4901
diff changeset
1241 InnerClassesIterator(instanceKlassHandle k) {
f7c4174b33ba 7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents: 4901
diff changeset
1242 _inner_classes = k->inner_classes();
f7c4174b33ba 7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents: 4901
diff changeset
1243 if (k->inner_classes() != NULL) {
f7c4174b33ba 7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents: 4901
diff changeset
1244 _length = _inner_classes->length();
f7c4174b33ba 7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents: 4901
diff changeset
1245 // The inner class array's length should be the multiple of
f7c4174b33ba 7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents: 4901
diff changeset
1246 // inner_class_next_offset if it only contains the InnerClasses
f7c4174b33ba 7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents: 4901
diff changeset
1247 // attribute data, or it should be
f7c4174b33ba 7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents: 4901
diff changeset
1248 // n*inner_class_next_offset+enclosing_method_attribute_size
f7c4174b33ba 7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents: 4901
diff changeset
1249 // if it also contains the EnclosingMethod data.
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6203
diff changeset
1250 assert((_length % InstanceKlass::inner_class_next_offset == 0 ||
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6203
diff changeset
1251 _length % InstanceKlass::inner_class_next_offset == InstanceKlass::enclosing_method_attribute_size),
5967
f7c4174b33ba 7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents: 4901
diff changeset
1252 "just checking");
f7c4174b33ba 7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents: 4901
diff changeset
1253 // Remove the enclosing_method portion if exists.
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6203
diff changeset
1254 if (_length % InstanceKlass::inner_class_next_offset == InstanceKlass::enclosing_method_attribute_size) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6203
diff changeset
1255 _length -= InstanceKlass::enclosing_method_attribute_size;
5967
f7c4174b33ba 7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents: 4901
diff changeset
1256 }
f7c4174b33ba 7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents: 4901
diff changeset
1257 } else {
f7c4174b33ba 7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents: 4901
diff changeset
1258 _length = 0;
f7c4174b33ba 7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents: 4901
diff changeset
1259 }
f7c4174b33ba 7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents: 4901
diff changeset
1260 _idx = 0;
f7c4174b33ba 7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents: 4901
diff changeset
1261 }
f7c4174b33ba 7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents: 4901
diff changeset
1262
f7c4174b33ba 7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents: 4901
diff changeset
1263 int length() const {
f7c4174b33ba 7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents: 4901
diff changeset
1264 return _length;
f7c4174b33ba 7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents: 4901
diff changeset
1265 }
f7c4174b33ba 7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents: 4901
diff changeset
1266
f7c4174b33ba 7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents: 4901
diff changeset
1267 void next() {
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6203
diff changeset
1268 _idx += InstanceKlass::inner_class_next_offset;
5967
f7c4174b33ba 7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents: 4901
diff changeset
1269 }
f7c4174b33ba 7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents: 4901
diff changeset
1270
f7c4174b33ba 7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents: 4901
diff changeset
1271 bool done() const {
f7c4174b33ba 7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents: 4901
diff changeset
1272 return (_idx >= _length);
f7c4174b33ba 7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents: 4901
diff changeset
1273 }
f7c4174b33ba 7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents: 4901
diff changeset
1274
f7c4174b33ba 7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents: 4901
diff changeset
1275 u2 inner_class_info_index() const {
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6203
diff changeset
1276 return _inner_classes->at(
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6203
diff changeset
1277 _idx + InstanceKlass::inner_class_inner_class_info_offset);
5967
f7c4174b33ba 7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents: 4901
diff changeset
1278 }
f7c4174b33ba 7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents: 4901
diff changeset
1279
f7c4174b33ba 7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents: 4901
diff changeset
1280 void set_inner_class_info_index(u2 index) {
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6203
diff changeset
1281 _inner_classes->at_put(
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6203
diff changeset
1282 _idx + InstanceKlass::inner_class_inner_class_info_offset, index);
5967
f7c4174b33ba 7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents: 4901
diff changeset
1283 }
f7c4174b33ba 7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents: 4901
diff changeset
1284
f7c4174b33ba 7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents: 4901
diff changeset
1285 u2 outer_class_info_index() const {
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6203
diff changeset
1286 return _inner_classes->at(
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6203
diff changeset
1287 _idx + InstanceKlass::inner_class_outer_class_info_offset);
5967
f7c4174b33ba 7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents: 4901
diff changeset
1288 }
f7c4174b33ba 7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents: 4901
diff changeset
1289
f7c4174b33ba 7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents: 4901
diff changeset
1290 void set_outer_class_info_index(u2 index) {
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6203
diff changeset
1291 _inner_classes->at_put(
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6203
diff changeset
1292 _idx + InstanceKlass::inner_class_outer_class_info_offset, index);
5967
f7c4174b33ba 7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents: 4901
diff changeset
1293 }
f7c4174b33ba 7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents: 4901
diff changeset
1294
f7c4174b33ba 7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents: 4901
diff changeset
1295 u2 inner_name_index() const {
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6203
diff changeset
1296 return _inner_classes->at(
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6203
diff changeset
1297 _idx + InstanceKlass::inner_class_inner_name_offset);
5967
f7c4174b33ba 7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents: 4901
diff changeset
1298 }
f7c4174b33ba 7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents: 4901
diff changeset
1299
f7c4174b33ba 7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents: 4901
diff changeset
1300 void set_inner_name_index(u2 index) {
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6203
diff changeset
1301 _inner_classes->at_put(
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6203
diff changeset
1302 _idx + InstanceKlass::inner_class_inner_name_offset, index);
5967
f7c4174b33ba 7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents: 4901
diff changeset
1303 }
f7c4174b33ba 7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents: 4901
diff changeset
1304
f7c4174b33ba 7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents: 4901
diff changeset
1305 u2 inner_access_flags() const {
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6203
diff changeset
1306 return _inner_classes->at(
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6203
diff changeset
1307 _idx + InstanceKlass::inner_class_access_flags_offset);
5967
f7c4174b33ba 7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents: 4901
diff changeset
1308 }
f7c4174b33ba 7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents: 4901
diff changeset
1309 };
f7c4174b33ba 7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents: 4901
diff changeset
1310
1972
f95d63e2154a 6989984: Use standard include model for Hospot
stefank
parents: 1783
diff changeset
1311 #endif // SHARE_VM_OOPS_INSTANCEKLASS_HPP