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annotate src/share/vm/oops/instanceKlass.cpp @ 17795:a9becfeecd1b

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Merge
author kvn
date Wed, 22 Jan 2014 17:42:23 -0800
parents 5da8bb64b370 5832cdaf89c6
children 752ba2e5f6d0
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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 #include "precompiled.hpp"
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26 #include "classfile/javaClasses.hpp"
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27 #include "classfile/systemDictionary.hpp"
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28 #include "classfile/verifier.hpp"
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29 #include "classfile/vmSymbols.hpp"
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30 #include "compiler/compileBroker.hpp"
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31 #include "gc_implementation/shared/markSweep.inline.hpp"
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32 #include "gc_interface/collectedHeap.inline.hpp"
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33 #include "interpreter/oopMapCache.hpp"
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34 #include "interpreter/rewriter.hpp"
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35 #include "jvmtifiles/jvmti.h"
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36 #include "memory/genOopClosures.inline.hpp"
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37 #include "memory/heapInspection.hpp"
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38 #include "memory/metadataFactory.hpp"
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39 #include "memory/oopFactory.hpp"
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40 #include "oops/fieldStreams.hpp"
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41 #include "oops/instanceClassLoaderKlass.hpp"
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42 #include "oops/instanceKlass.hpp"
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43 #include "oops/instanceMirrorKlass.hpp"
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44 #include "oops/instanceOop.hpp"
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45 #include "oops/klass.inline.hpp"
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46 #include "oops/method.hpp"
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47 #include "oops/oop.inline.hpp"
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48 #include "oops/symbol.hpp"
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49 #include "prims/jvmtiExport.hpp"
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50 #include "prims/jvmtiRedefineClassesTrace.hpp"
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51 #include "prims/jvmtiRedefineClasses.hpp"
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52 #include "prims/methodComparator.hpp"
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53 #include "runtime/fieldDescriptor.hpp"
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54 #include "runtime/handles.inline.hpp"
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55 #include "runtime/javaCalls.hpp"
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56 #include "runtime/mutexLocker.hpp"
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57 #include "runtime/thread.inline.hpp"
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58 #include "services/classLoadingService.hpp"
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59 #include "services/threadService.hpp"
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60 #include "utilities/dtrace.hpp"
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61 #include "utilities/macros.hpp"
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62 #if INCLUDE_ALL_GCS
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63 #include "gc_implementation/concurrentMarkSweep/cmsOopClosures.inline.hpp"
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64 #include "gc_implementation/g1/g1CollectedHeap.inline.hpp"
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65 #include "gc_implementation/g1/g1OopClosures.inline.hpp"
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66 #include "gc_implementation/g1/g1RemSet.inline.hpp"
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67 #include "gc_implementation/g1/heapRegionSeq.inline.hpp"
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68 #include "gc_implementation/parNew/parOopClosures.inline.hpp"
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69 #include "gc_implementation/parallelScavenge/parallelScavengeHeap.inline.hpp"
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70 #include "gc_implementation/parallelScavenge/psPromotionManager.inline.hpp"
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71 #include "gc_implementation/parallelScavenge/psScavenge.inline.hpp"
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72 #include "oops/oop.pcgc.inline.hpp"
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73 #endif // INCLUDE_ALL_GCS
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74 #ifdef COMPILER1
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75 #include "c1/c1_Compiler.hpp"
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76 #endif
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77
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78 #ifdef DTRACE_ENABLED
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79
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80 #ifndef USDT2
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81
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82 HS_DTRACE_PROBE_DECL4(hotspot, class__initialization__required,
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83 char*, intptr_t, oop, intptr_t);
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84 HS_DTRACE_PROBE_DECL5(hotspot, class__initialization__recursive,
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85 char*, intptr_t, oop, intptr_t, int);
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86 HS_DTRACE_PROBE_DECL5(hotspot, class__initialization__concurrent,
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87 char*, intptr_t, oop, intptr_t, int);
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88 HS_DTRACE_PROBE_DECL5(hotspot, class__initialization__erroneous,
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89 char*, intptr_t, oop, intptr_t, int);
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90 HS_DTRACE_PROBE_DECL5(hotspot, class__initialization__super__failed,
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91 char*, intptr_t, oop, intptr_t, int);
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92 HS_DTRACE_PROBE_DECL5(hotspot, class__initialization__clinit,
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93 char*, intptr_t, oop, intptr_t, int);
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94 HS_DTRACE_PROBE_DECL5(hotspot, class__initialization__error,
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95 char*, intptr_t, oop, intptr_t, int);
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96 HS_DTRACE_PROBE_DECL5(hotspot, class__initialization__end,
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97 char*, intptr_t, oop, intptr_t, int);
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98
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99 #define DTRACE_CLASSINIT_PROBE(type, clss, thread_type) \
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100 { \
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101 char* data = NULL; \
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102 int len = 0; \
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103 Symbol* name = (clss)->name(); \
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104 if (name != NULL) { \
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105 data = (char*)name->bytes(); \
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106 len = name->utf8_length(); \
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107 } \
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108 HS_DTRACE_PROBE4(hotspot, class__initialization__##type, \
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109 data, len, SOLARIS_ONLY((void *))(clss)->class_loader(), thread_type); \
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110 }
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111
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112 #define DTRACE_CLASSINIT_PROBE_WAIT(type, clss, thread_type, wait) \
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113 { \
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114 char* data = NULL; \
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115 int len = 0; \
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116 Symbol* name = (clss)->name(); \
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117 if (name != NULL) { \
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118 data = (char*)name->bytes(); \
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119 len = name->utf8_length(); \
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120 } \
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121 HS_DTRACE_PROBE5(hotspot, class__initialization__##type, \
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122 data, len, SOLARIS_ONLY((void *))(clss)->class_loader(), thread_type, wait); \
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123 }
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124 #else /* USDT2 */
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125
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126 #define HOTSPOT_CLASS_INITIALIZATION_required HOTSPOT_CLASS_INITIALIZATION_REQUIRED
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127 #define HOTSPOT_CLASS_INITIALIZATION_recursive HOTSPOT_CLASS_INITIALIZATION_RECURSIVE
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128 #define HOTSPOT_CLASS_INITIALIZATION_concurrent HOTSPOT_CLASS_INITIALIZATION_CONCURRENT
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129 #define HOTSPOT_CLASS_INITIALIZATION_erroneous HOTSPOT_CLASS_INITIALIZATION_ERRONEOUS
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130 #define HOTSPOT_CLASS_INITIALIZATION_super__failed HOTSPOT_CLASS_INITIALIZATION_SUPER_FAILED
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131 #define HOTSPOT_CLASS_INITIALIZATION_clinit HOTSPOT_CLASS_INITIALIZATION_CLINIT
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132 #define HOTSPOT_CLASS_INITIALIZATION_error HOTSPOT_CLASS_INITIALIZATION_ERROR
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133 #define HOTSPOT_CLASS_INITIALIZATION_end HOTSPOT_CLASS_INITIALIZATION_END
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134 #define DTRACE_CLASSINIT_PROBE(type, clss, thread_type) \
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135 { \
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136 char* data = NULL; \
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137 int len = 0; \
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138 Symbol* name = (clss)->name(); \
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139 if (name != NULL) { \
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140 data = (char*)name->bytes(); \
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141 len = name->utf8_length(); \
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142 } \
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143 HOTSPOT_CLASS_INITIALIZATION_##type( \
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144 data, len, (clss)->class_loader(), thread_type); \
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145 }
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146
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147 #define DTRACE_CLASSINIT_PROBE_WAIT(type, clss, thread_type, wait) \
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148 { \
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149 char* data = NULL; \
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150 int len = 0; \
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151 Symbol* name = (clss)->name(); \
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152 if (name != NULL) { \
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153 data = (char*)name->bytes(); \
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154 len = name->utf8_length(); \
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155 } \
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156 HOTSPOT_CLASS_INITIALIZATION_##type( \
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157 data, len, (clss)->class_loader(), thread_type, wait); \
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158 }
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159 #endif /* USDT2 */
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160
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161 #else // ndef DTRACE_ENABLED
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162
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163 #define DTRACE_CLASSINIT_PROBE(type, clss, thread_type)
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164 #define DTRACE_CLASSINIT_PROBE_WAIT(type, clss, thread_type, wait)
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165
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166 #endif // ndef DTRACE_ENABLED
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167
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168 volatile int InstanceKlass::_total_instanceKlass_count = 0;
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169
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170 InstanceKlass* InstanceKlass::allocate_instance_klass(
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171 ClassLoaderData* loader_data,
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172 int vtable_len,
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173 int itable_len,
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174 int static_field_size,
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175 int nonstatic_oop_map_size,
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176 ReferenceType rt,
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177 AccessFlags access_flags,
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178 Symbol* name,
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179 Klass* super_klass,
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180 bool is_anonymous,
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181 TRAPS) {
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182
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183 int size = InstanceKlass::size(vtable_len, itable_len, nonstatic_oop_map_size,
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184 access_flags.is_interface(), is_anonymous);
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185
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186 // Allocation
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187 InstanceKlass* ik;
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188 if (rt == REF_NONE) {
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189 if (name == vmSymbols::java_lang_Class()) {
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190 ik = new (loader_data, size, THREAD) InstanceMirrorKlass(
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191 vtable_len, itable_len, static_field_size, nonstatic_oop_map_size, rt,
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192 access_flags, is_anonymous);
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193 } else if (name == vmSymbols::java_lang_ClassLoader() ||
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194 (SystemDictionary::ClassLoader_klass_loaded() &&
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195 super_klass != NULL &&
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196 super_klass->is_subtype_of(SystemDictionary::ClassLoader_klass()))) {
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197 ik = new (loader_data, size, THREAD) InstanceClassLoaderKlass(
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198 vtable_len, itable_len, static_field_size, nonstatic_oop_map_size, rt,
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199 access_flags, is_anonymous);
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200 } else {
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201 // normal class
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202 ik = new (loader_data, size, THREAD) InstanceKlass(
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203 vtable_len, itable_len, static_field_size, nonstatic_oop_map_size, rt,
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204 access_flags, is_anonymous);
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205 }
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206 } else {
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207 // reference klass
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208 ik = new (loader_data, size, THREAD) InstanceRefKlass(
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209 vtable_len, itable_len, static_field_size, nonstatic_oop_map_size, rt,
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210 access_flags, is_anonymous);
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211 }
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212
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213 // Check for pending exception before adding to the loader data and incrementing
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214 // class count. Can get OOM here.
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215 if (HAS_PENDING_EXCEPTION) {
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216 return NULL;
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217 }
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218
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219 // Add all classes to our internal class loader list here,
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220 // including classes in the bootstrap (NULL) class loader.
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221 loader_data->add_class(ik);
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222
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223 Atomic::inc(&_total_instanceKlass_count);
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224 return ik;
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225 }
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226
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227
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228 // copy method ordering from resource area to Metaspace
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229 void InstanceKlass::copy_method_ordering(intArray* m, TRAPS) {
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230 if (m != NULL) {
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231 // allocate a new array and copy contents (memcpy?)
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232 _method_ordering = MetadataFactory::new_array<int>(class_loader_data(), m->length(), CHECK);
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233 for (int i = 0; i < m->length(); i++) {
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234 _method_ordering->at_put(i, m->at(i));
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235 }
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236 } else {
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237 _method_ordering = Universe::the_empty_int_array();
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238 }
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239 }
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240
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241 // create a new array of vtable_indices for default methods
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242 Array<int>* InstanceKlass::create_new_default_vtable_indices(int len, TRAPS) {
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243 Array<int>* vtable_indices = MetadataFactory::new_array<int>(class_loader_data(), len, CHECK_NULL);
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244 assert(default_vtable_indices() == NULL, "only create once");
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245 set_default_vtable_indices(vtable_indices);
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246 return vtable_indices;
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247 }
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248
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249 InstanceKlass::InstanceKlass(int vtable_len,
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250 int itable_len,
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251 int static_field_size,
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252 int nonstatic_oop_map_size,
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253 ReferenceType rt,
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254 AccessFlags access_flags,
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255 bool is_anonymous) {
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256 No_Safepoint_Verifier no_safepoint; // until k becomes parsable
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257
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258 int iksize = InstanceKlass::size(vtable_len, itable_len, nonstatic_oop_map_size,
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259 access_flags.is_interface(), is_anonymous);
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260
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261 set_vtable_length(vtable_len);
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262 set_itable_length(itable_len);
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263 set_static_field_size(static_field_size);
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264 set_nonstatic_oop_map_size(nonstatic_oop_map_size);
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265 set_access_flags(access_flags);
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266 _misc_flags = 0; // initialize to zero
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267 set_is_anonymous(is_anonymous);
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268 assert(size() == iksize, "wrong size for object");
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269
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270 set_array_klasses(NULL);
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271 set_methods(NULL);
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272 set_method_ordering(NULL);
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273 set_default_methods(NULL);
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274 set_default_vtable_indices(NULL);
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275 set_local_interfaces(NULL);
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276 set_transitive_interfaces(NULL);
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277 init_implementor();
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278 set_fields(NULL, 0);
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279 set_constants(NULL);
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280 set_class_loader_data(NULL);
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281 set_source_file_name_index(0);
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282 set_source_debug_extension(NULL, 0);
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283 set_array_name(NULL);
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284 set_inner_classes(NULL);
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285 set_static_oop_field_count(0);
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286 set_nonstatic_field_size(0);
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287 set_is_marked_dependent(false);
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288 set_init_state(InstanceKlass::allocated);
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289 set_init_thread(NULL);
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290 set_reference_type(rt);
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291 set_oop_map_cache(NULL);
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292 set_jni_ids(NULL);
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293 set_osr_nmethods_head(NULL);
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294 set_breakpoints(NULL);
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295 init_previous_versions();
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296 set_generic_signature_index(0);
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diff changeset
297 release_set_methods_jmethod_ids(NULL);
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diff changeset
298 set_annotations(NULL);
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diff changeset
299 set_jvmti_cached_class_field_map(NULL);
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diff changeset
300 set_initial_method_idnum(0);
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coleenp
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diff changeset
301 _dependencies = NULL;
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diff changeset
302 set_jvmti_cached_class_field_map(NULL);
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303 set_cached_class_file(NULL);
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diff changeset
304 set_initial_method_idnum(0);
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diff changeset
305 set_minor_version(0);
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diff changeset
306 set_major_version(0);
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307 NOT_PRODUCT(_verify_count = 0;)
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308
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309 // initialize the non-header words to zero
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310 intptr_t* p = (intptr_t*)this;
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311 for (int index = InstanceKlass::header_size(); index < iksize; index++) {
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312 p[index] = NULL_WORD;
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313 }
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314
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315 // Set temporary value until parseClassFile updates it with the real instance
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316 // size.
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317 set_layout_helper(Klass::instance_layout_helper(0, true));
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318 }
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319
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320
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321 void InstanceKlass::deallocate_methods(ClassLoaderData* loader_data,
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322 Array<Method*>* methods) {
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diff changeset
323 if (methods != NULL && methods != Universe::the_empty_method_array() &&
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324 !methods->is_shared()) {
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325 for (int i = 0; i < methods->length(); i++) {
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diff changeset
326 Method* method = methods->at(i);
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327 if (method == NULL) continue; // maybe null if error processing
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328 // Only want to delete methods that are not executing for RedefineClasses.
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coleenp
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329 // The previous version will point to them so they're not totally dangling
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330 assert (!method->on_stack(), "shouldn't be called with methods on stack");
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331 MetadataFactory::free_metadata(loader_data, method);
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coleenp
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diff changeset
332 }
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coleenp
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diff changeset
333 MetadataFactory::free_array<Method*>(loader_data, methods);
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coleenp
parents: 8714
diff changeset
334 }
c8b31b461e1a 8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents: 8714
diff changeset
335 }
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coleenp
parents: 8714
diff changeset
336
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coleenp
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diff changeset
337 void InstanceKlass::deallocate_interfaces(ClassLoaderData* loader_data,
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coleenp
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338 Klass* super_klass,
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coleenp
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339 Array<Klass*>* local_interfaces,
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coleenp
parents: 8714
diff changeset
340 Array<Klass*>* transitive_interfaces) {
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coleenp
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diff changeset
341 // Only deallocate transitive interfaces if not empty, same as super class
c8b31b461e1a 8003419: NPG: Clean up metadata created during class loading if failure
coleenp
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342 // or same as local interfaces. See code in parseClassFile.
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coleenp
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343 Array<Klass*>* ti = transitive_interfaces;
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coleenp
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diff changeset
344 if (ti != Universe::the_empty_klass_array() && ti != local_interfaces) {
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coleenp
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345 // check that the interfaces don't come from super class
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346 Array<Klass*>* sti = (super_klass == NULL) ? NULL :
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coleenp
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347 InstanceKlass::cast(super_klass)->transitive_interfaces();
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348 if (ti != sti && ti != NULL && !ti->is_shared()) {
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diff changeset
349 MetadataFactory::free_array<Klass*>(loader_data, ti);
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coleenp
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diff changeset
350 }
c8b31b461e1a 8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents: 8714
diff changeset
351 }
c8b31b461e1a 8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents: 8714
diff changeset
352
c8b31b461e1a 8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents: 8714
diff changeset
353 // local interfaces can be empty
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hseigel
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diff changeset
354 if (local_interfaces != Universe::the_empty_klass_array() &&
d37a0525c0fe 8024667: VM crashes with "assert(method() != NULL) failed: must have set method"
hseigel
parents: 12828
diff changeset
355 local_interfaces != NULL && !local_interfaces->is_shared()) {
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parents: 8714
diff changeset
356 MetadataFactory::free_array<Klass*>(loader_data, local_interfaces);
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coleenp
parents: 8714
diff changeset
357 }
c8b31b461e1a 8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents: 8714
diff changeset
358 }
c8b31b461e1a 8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents: 8714
diff changeset
359
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360 // This function deallocates the metadata and C heap pointers that the
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coleenp
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diff changeset
361 // InstanceKlass points to.
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coleenp
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diff changeset
362 void InstanceKlass::deallocate_contents(ClassLoaderData* loader_data) {
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coleenp
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diff changeset
363
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coleenp
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diff changeset
364 // Orphan the mirror first, CMS thinks it's still live.
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coleenp
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diff changeset
365 if (java_mirror() != NULL) {
c8b31b461e1a 8003419: NPG: Clean up metadata created during class loading if failure
coleenp
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diff changeset
366 java_lang_Class::set_klass(java_mirror(), NULL);
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coleenp
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diff changeset
367 }
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368
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diff changeset
369 // Need to take this class off the class loader data list.
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coleenp
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diff changeset
370 loader_data->remove_class(this);
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coleenp
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diff changeset
371
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coleenp
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diff changeset
372 // The array_klass for this class is created later, after error handling.
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coleenp
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diff changeset
373 // For class redefinition, we keep the original class so this scratch class
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coleenp
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diff changeset
374 // doesn't have an array class. Either way, assert that there is nothing
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coleenp
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diff changeset
375 // to deallocate.
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diff changeset
376 assert(array_klasses() == NULL, "array classes shouldn't be created for this class yet");
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377
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coleenp
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diff changeset
378 // Release C heap allocated data that this might point to, which includes
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coleenp
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diff changeset
379 // reference counting symbol names.
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coleenp
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diff changeset
380 release_C_heap_structures();
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coleenp
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diff changeset
381
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382 deallocate_methods(loader_data, methods());
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diff changeset
383 set_methods(NULL);
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diff changeset
384
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diff changeset
385 if (method_ordering() != NULL &&
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hseigel
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diff changeset
386 method_ordering() != Universe::the_empty_int_array() &&
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hseigel
parents: 12828
diff changeset
387 !method_ordering()->is_shared()) {
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diff changeset
388 MetadataFactory::free_array<int>(loader_data, method_ordering());
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coleenp
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diff changeset
389 }
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coleenp
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diff changeset
390 set_method_ordering(NULL);
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coleenp
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diff changeset
391
12823
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acorn
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diff changeset
392 // default methods can be empty
ac9cb1d5a202 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 12811
diff changeset
393 if (default_methods() != NULL &&
12857
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hseigel
parents: 12828
diff changeset
394 default_methods() != Universe::the_empty_method_array() &&
d37a0525c0fe 8024667: VM crashes with "assert(method() != NULL) failed: must have set method"
hseigel
parents: 12828
diff changeset
395 !default_methods()->is_shared()) {
12823
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acorn
parents: 12811
diff changeset
396 MetadataFactory::free_array<Method*>(loader_data, default_methods());
ac9cb1d5a202 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 12811
diff changeset
397 }
ac9cb1d5a202 8009130: Lambda: Fix access controls, loader constraints.
acorn
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diff changeset
398 // Do NOT deallocate the default methods, they are owned by superinterfaces.
ac9cb1d5a202 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 12811
diff changeset
399 set_default_methods(NULL);
ac9cb1d5a202 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 12811
diff changeset
400
ac9cb1d5a202 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 12811
diff changeset
401 // default methods vtable indices can be empty
12857
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hseigel
parents: 12828
diff changeset
402 if (default_vtable_indices() != NULL &&
d37a0525c0fe 8024667: VM crashes with "assert(method() != NULL) failed: must have set method"
hseigel
parents: 12828
diff changeset
403 !default_vtable_indices()->is_shared()) {
12823
ac9cb1d5a202 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 12811
diff changeset
404 MetadataFactory::free_array<int>(loader_data, default_vtable_indices());
ac9cb1d5a202 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 12811
diff changeset
405 }
ac9cb1d5a202 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 12811
diff changeset
406 set_default_vtable_indices(NULL);
ac9cb1d5a202 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 12811
diff changeset
407
ac9cb1d5a202 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 12811
diff changeset
408
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coleenp
parents: 6266
diff changeset
409 // This array is in Klass, but remove it with the InstanceKlass since
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
410 // this place would be the only caller and it can share memory with transitive
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
411 // interfaces.
12857
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hseigel
parents: 12828
diff changeset
412 if (secondary_supers() != NULL &&
d37a0525c0fe 8024667: VM crashes with "assert(method() != NULL) failed: must have set method"
hseigel
parents: 12828
diff changeset
413 secondary_supers() != Universe::the_empty_klass_array() &&
d37a0525c0fe 8024667: VM crashes with "assert(method() != NULL) failed: must have set method"
hseigel
parents: 12828
diff changeset
414 secondary_supers() != transitive_interfaces() &&
d37a0525c0fe 8024667: VM crashes with "assert(method() != NULL) failed: must have set method"
hseigel
parents: 12828
diff changeset
415 !secondary_supers()->is_shared()) {
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diff changeset
416 MetadataFactory::free_array<Klass*>(loader_data, secondary_supers());
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coleenp
parents: 6266
diff changeset
417 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
418 set_secondary_supers(NULL);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
419
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diff changeset
420 deallocate_interfaces(loader_data, super(), local_interfaces(), transitive_interfaces());
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coleenp
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diff changeset
421 set_transitive_interfaces(NULL);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
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diff changeset
422 set_local_interfaces(NULL);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
423
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hseigel
parents: 12828
diff changeset
424 if (fields() != NULL && !fields()->is_shared()) {
d37a0525c0fe 8024667: VM crashes with "assert(method() != NULL) failed: must have set method"
hseigel
parents: 12828
diff changeset
425 MetadataFactory::free_array<jushort>(loader_data, fields());
d37a0525c0fe 8024667: VM crashes with "assert(method() != NULL) failed: must have set method"
hseigel
parents: 12828
diff changeset
426 }
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coleenp
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diff changeset
427 set_fields(NULL, 0);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
428
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
429 // If a method from a redefined class is using this constant pool, don't
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
430 // delete it, yet. The new class's previous version will point to this.
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coleenp
parents: 8714
diff changeset
431 if (constants() != NULL) {
c8b31b461e1a 8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents: 8714
diff changeset
432 assert (!constants()->on_stack(), "shouldn't be called if anything is onstack");
12857
d37a0525c0fe 8024667: VM crashes with "assert(method() != NULL) failed: must have set method"
hseigel
parents: 12828
diff changeset
433 if (!constants()->is_shared()) {
d37a0525c0fe 8024667: VM crashes with "assert(method() != NULL) failed: must have set method"
hseigel
parents: 12828
diff changeset
434 MetadataFactory::free_metadata(loader_data, constants());
d37a0525c0fe 8024667: VM crashes with "assert(method() != NULL) failed: must have set method"
hseigel
parents: 12828
diff changeset
435 }
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coleenp
parents: 8714
diff changeset
436 set_constants(NULL);
c8b31b461e1a 8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents: 8714
diff changeset
437 }
6725
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coleenp
parents: 6266
diff changeset
438
12857
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hseigel
parents: 12828
diff changeset
439 if (inner_classes() != NULL &&
d37a0525c0fe 8024667: VM crashes with "assert(method() != NULL) failed: must have set method"
hseigel
parents: 12828
diff changeset
440 inner_classes() != Universe::the_empty_short_array() &&
d37a0525c0fe 8024667: VM crashes with "assert(method() != NULL) failed: must have set method"
hseigel
parents: 12828
diff changeset
441 !inner_classes()->is_shared()) {
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diff changeset
442 MetadataFactory::free_array<jushort>(loader_data, inner_classes());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
443 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
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diff changeset
444 set_inner_classes(NULL);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
445
12857
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hseigel
parents: 12828
diff changeset
446 // We should deallocate the Annotations instance if it's not in shared spaces.
d37a0525c0fe 8024667: VM crashes with "assert(method() != NULL) failed: must have set method"
hseigel
parents: 12828
diff changeset
447 if (annotations() != NULL && !annotations()->is_shared()) {
d37a0525c0fe 8024667: VM crashes with "assert(method() != NULL) failed: must have set method"
hseigel
parents: 12828
diff changeset
448 MetadataFactory::free_metadata(loader_data, annotations());
d37a0525c0fe 8024667: VM crashes with "assert(method() != NULL) failed: must have set method"
hseigel
parents: 12828
diff changeset
449 }
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450 set_annotations(NULL);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
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diff changeset
451 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
452
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diff changeset
453 bool InstanceKlass::should_be_initialized() const {
0
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454 return !is_initialized();
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455 }
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diff changeset
456
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457 klassVtable* InstanceKlass::vtable() const {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
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458 return new klassVtable(this, start_of_vtable(), vtable_length() / vtableEntry::size());
0
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459 }
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diff changeset
460
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parents: 6266
diff changeset
461 klassItable* InstanceKlass::itable() const {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
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462 return new klassItable(instanceKlassHandle(this));
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463 }
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464
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diff changeset
465 void InstanceKlass::eager_initialize(Thread *thread) {
0
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466 if (!EagerInitialization) return;
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467
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468 if (this->is_not_initialized()) {
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469 // abort if the the class has a class initializer
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diff changeset
470 if (this->class_initializer() != NULL) return;
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471
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472 // abort if it is java.lang.Object (initialization is handled in genesis)
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473 Klass* super = this->super();
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474 if (super == NULL) return;
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475
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476 // abort if the super class should be initialized
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477 if (!InstanceKlass::cast(super)->is_initialized()) return;
0
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478
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479 // call body to expose the this pointer
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480 instanceKlassHandle this_oop(thread, this);
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481 eager_initialize_impl(this_oop);
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482 }
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483 }
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diff changeset
484
10343
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coleenp
parents: 10265
diff changeset
485 // JVMTI spec thinks there are signers and protection domain in the
6bd680e9ea35 8003421: NPG: Move oops out of InstanceKlass into mirror
coleenp
parents: 10265
diff changeset
486 // instanceKlass. These accessors pretend these fields are there.
6bd680e9ea35 8003421: NPG: Move oops out of InstanceKlass into mirror
coleenp
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diff changeset
487 // The hprof specification also thinks these fields are in InstanceKlass.
6bd680e9ea35 8003421: NPG: Move oops out of InstanceKlass into mirror
coleenp
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diff changeset
488 oop InstanceKlass::protection_domain() const {
6bd680e9ea35 8003421: NPG: Move oops out of InstanceKlass into mirror
coleenp
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diff changeset
489 // return the protection_domain from the mirror
6bd680e9ea35 8003421: NPG: Move oops out of InstanceKlass into mirror
coleenp
parents: 10265
diff changeset
490 return java_lang_Class::protection_domain(java_mirror());
6bd680e9ea35 8003421: NPG: Move oops out of InstanceKlass into mirror
coleenp
parents: 10265
diff changeset
491 }
6bd680e9ea35 8003421: NPG: Move oops out of InstanceKlass into mirror
coleenp
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diff changeset
492
6bd680e9ea35 8003421: NPG: Move oops out of InstanceKlass into mirror
coleenp
parents: 10265
diff changeset
493 // To remove these from requires an incompatible change and CCC request.
6bd680e9ea35 8003421: NPG: Move oops out of InstanceKlass into mirror
coleenp
parents: 10265
diff changeset
494 objArrayOop InstanceKlass::signers() const {
6bd680e9ea35 8003421: NPG: Move oops out of InstanceKlass into mirror
coleenp
parents: 10265
diff changeset
495 // return the signers from the mirror
6bd680e9ea35 8003421: NPG: Move oops out of InstanceKlass into mirror
coleenp
parents: 10265
diff changeset
496 return java_lang_Class::signers(java_mirror());
6bd680e9ea35 8003421: NPG: Move oops out of InstanceKlass into mirror
coleenp
parents: 10265
diff changeset
497 }
6bd680e9ea35 8003421: NPG: Move oops out of InstanceKlass into mirror
coleenp
parents: 10265
diff changeset
498
12811
3374b92de2d9 8025004: -XX:+CheckUnhandledOops asserts for JDK 8 Solaris fastdebug binaries
coleenp
parents: 12318
diff changeset
499 oop InstanceKlass::init_lock() const {
10343
6bd680e9ea35 8003421: NPG: Move oops out of InstanceKlass into mirror
coleenp
parents: 10265
diff changeset
500 // return the init lock from the mirror
12946
b8860472c377 8014910: deadlock between JVM/TI ClassPrepare event handler and CompilerThread
iklam
parents: 12857
diff changeset
501 oop lock = java_lang_Class::init_lock(java_mirror());
b8860472c377 8014910: deadlock between JVM/TI ClassPrepare event handler and CompilerThread
iklam
parents: 12857
diff changeset
502 assert((oop)lock != NULL || !is_not_initialized(), // initialized or in_error state
b8860472c377 8014910: deadlock between JVM/TI ClassPrepare event handler and CompilerThread
iklam
parents: 12857
diff changeset
503 "only fully initialized state can have a null lock");
b8860472c377 8014910: deadlock between JVM/TI ClassPrepare event handler and CompilerThread
iklam
parents: 12857
diff changeset
504 return lock;
b8860472c377 8014910: deadlock between JVM/TI ClassPrepare event handler and CompilerThread
iklam
parents: 12857
diff changeset
505 }
b8860472c377 8014910: deadlock between JVM/TI ClassPrepare event handler and CompilerThread
iklam
parents: 12857
diff changeset
506
b8860472c377 8014910: deadlock between JVM/TI ClassPrepare event handler and CompilerThread
iklam
parents: 12857
diff changeset
507 // Set the initialization lock to null so the object can be GC'ed. Any racing
b8860472c377 8014910: deadlock between JVM/TI ClassPrepare event handler and CompilerThread
iklam
parents: 12857
diff changeset
508 // threads to get this lock will see a null lock and will not lock.
b8860472c377 8014910: deadlock between JVM/TI ClassPrepare event handler and CompilerThread
iklam
parents: 12857
diff changeset
509 // That's okay because they all check for initialized state after getting
b8860472c377 8014910: deadlock between JVM/TI ClassPrepare event handler and CompilerThread
iklam
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diff changeset
510 // the lock and return.
b8860472c377 8014910: deadlock between JVM/TI ClassPrepare event handler and CompilerThread
iklam
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diff changeset
511 void InstanceKlass::fence_and_clear_init_lock() {
b8860472c377 8014910: deadlock between JVM/TI ClassPrepare event handler and CompilerThread
iklam
parents: 12857
diff changeset
512 // make sure previous stores are all done, notably the init_state.
b8860472c377 8014910: deadlock between JVM/TI ClassPrepare event handler and CompilerThread
iklam
parents: 12857
diff changeset
513 OrderAccess::storestore();
b8860472c377 8014910: deadlock between JVM/TI ClassPrepare event handler and CompilerThread
iklam
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diff changeset
514 java_lang_Class::set_init_lock(java_mirror(), NULL);
b8860472c377 8014910: deadlock between JVM/TI ClassPrepare event handler and CompilerThread
iklam
parents: 12857
diff changeset
515 assert(!is_not_initialized(), "class must be initialized now");
10343
6bd680e9ea35 8003421: NPG: Move oops out of InstanceKlass into mirror
coleenp
parents: 10265
diff changeset
516 }
0
a61af66fc99e Initial load
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517
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coleenp
parents: 6266
diff changeset
518 void InstanceKlass::eager_initialize_impl(instanceKlassHandle this_oop) {
0
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diff changeset
519 EXCEPTION_MARK;
12811
3374b92de2d9 8025004: -XX:+CheckUnhandledOops asserts for JDK 8 Solaris fastdebug binaries
coleenp
parents: 12318
diff changeset
520 oop init_lock = this_oop->init_lock();
12946
b8860472c377 8014910: deadlock between JVM/TI ClassPrepare event handler and CompilerThread
iklam
parents: 12857
diff changeset
521 ObjectLocker ol(init_lock, THREAD, init_lock != NULL);
0
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diff changeset
522
a61af66fc99e Initial load
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parents:
diff changeset
523 // abort if someone beat us to the initialization
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parents:
diff changeset
524 if (!this_oop->is_not_initialized()) return; // note: not equivalent to is_initialized()
a61af66fc99e Initial load
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parents:
diff changeset
525
4739
52b5d32fbfaf 7117052: instanceKlass::_init_state can be u1 type
coleenp
parents: 4006
diff changeset
526 ClassState old_state = this_oop->init_state();
0
a61af66fc99e Initial load
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parents:
diff changeset
527 link_class_impl(this_oop, true, THREAD);
a61af66fc99e Initial load
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parents:
diff changeset
528 if (HAS_PENDING_EXCEPTION) {
a61af66fc99e Initial load
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parents:
diff changeset
529 CLEAR_PENDING_EXCEPTION;
a61af66fc99e Initial load
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parents:
diff changeset
530 // Abort if linking the class throws an exception.
a61af66fc99e Initial load
duke
parents:
diff changeset
531
a61af66fc99e Initial load
duke
parents:
diff changeset
532 // Use a test to avoid redundantly resetting the state if there's
a61af66fc99e Initial load
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parents:
diff changeset
533 // no change. Set_init_state() asserts that state changes make
a61af66fc99e Initial load
duke
parents:
diff changeset
534 // progress, whereas here we might just be spinning in place.
a61af66fc99e Initial load
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parents:
diff changeset
535 if( old_state != this_oop->_init_state )
a61af66fc99e Initial load
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parents:
diff changeset
536 this_oop->set_init_state (old_state);
a61af66fc99e Initial load
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parents:
diff changeset
537 } else {
a61af66fc99e Initial load
duke
parents:
diff changeset
538 // linking successfull, mark class as initialized
a61af66fc99e Initial load
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parents:
diff changeset
539 this_oop->set_init_state (fully_initialized);
12946
b8860472c377 8014910: deadlock between JVM/TI ClassPrepare event handler and CompilerThread
iklam
parents: 12857
diff changeset
540 this_oop->fence_and_clear_init_lock();
0
a61af66fc99e Initial load
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parents:
diff changeset
541 // trace
a61af66fc99e Initial load
duke
parents:
diff changeset
542 if (TraceClassInitialization) {
a61af66fc99e Initial load
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parents:
diff changeset
543 ResourceMark rm(THREAD);
a61af66fc99e Initial load
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parents:
diff changeset
544 tty->print_cr("[Initialized %s without side effects]", this_oop->external_name());
a61af66fc99e Initial load
duke
parents:
diff changeset
545 }
a61af66fc99e Initial load
duke
parents:
diff changeset
546 }
a61af66fc99e Initial load
duke
parents:
diff changeset
547 }
a61af66fc99e Initial load
duke
parents:
diff changeset
548
a61af66fc99e Initial load
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parents:
diff changeset
549
a61af66fc99e Initial load
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parents:
diff changeset
550 // See "The Virtual Machine Specification" section 2.16.5 for a detailed explanation of the class initialization
a61af66fc99e Initial load
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parents:
diff changeset
551 // process. The step comments refers to the procedure described in that section.
a61af66fc99e Initial load
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parents:
diff changeset
552 // Note: implementation moved to static method to expose the this pointer.
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
553 void InstanceKlass::initialize(TRAPS) {
0
a61af66fc99e Initial load
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parents:
diff changeset
554 if (this->should_be_initialized()) {
a61af66fc99e Initial load
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parents:
diff changeset
555 HandleMark hm(THREAD);
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
556 instanceKlassHandle this_oop(THREAD, this);
0
a61af66fc99e Initial load
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parents:
diff changeset
557 initialize_impl(this_oop, CHECK);
a61af66fc99e Initial load
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parents:
diff changeset
558 // Note: at this point the class may be initialized
a61af66fc99e Initial load
duke
parents:
diff changeset
559 // OR it may be in the state of being initialized
a61af66fc99e Initial load
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parents:
diff changeset
560 // in case of recursive initialization!
a61af66fc99e Initial load
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parents:
diff changeset
561 } else {
a61af66fc99e Initial load
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parents:
diff changeset
562 assert(is_initialized(), "sanity check");
a61af66fc99e Initial load
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parents:
diff changeset
563 }
a61af66fc99e Initial load
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parents:
diff changeset
564 }
a61af66fc99e Initial load
duke
parents:
diff changeset
565
a61af66fc99e Initial load
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parents:
diff changeset
566
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
567 bool InstanceKlass::verify_code(
0
a61af66fc99e Initial load
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parents:
diff changeset
568 instanceKlassHandle this_oop, bool throw_verifyerror, TRAPS) {
a61af66fc99e Initial load
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parents:
diff changeset
569 // 1) Verify the bytecodes
a61af66fc99e Initial load
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parents:
diff changeset
570 Verifier::Mode mode =
a61af66fc99e Initial load
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parents:
diff changeset
571 throw_verifyerror ? Verifier::ThrowException : Verifier::NoException;
973
ad6585fd4087 6830542: Performance: JVM_DefineClass already verified.
acorn
parents: 964
diff changeset
572 return Verifier::verify(this_oop, mode, this_oop->should_verify_class(), CHECK_false);
0
a61af66fc99e Initial load
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parents:
diff changeset
573 }
a61af66fc99e Initial load
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parents:
diff changeset
574
a61af66fc99e Initial load
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parents:
diff changeset
575
a61af66fc99e Initial load
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parents:
diff changeset
576 // Used exclusively by the shared spaces dump mechanism to prevent
a61af66fc99e Initial load
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parents:
diff changeset
577 // classes mapped into the shared regions in new VMs from appearing linked.
a61af66fc99e Initial load
duke
parents:
diff changeset
578
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
579 void InstanceKlass::unlink_class() {
0
a61af66fc99e Initial load
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parents:
diff changeset
580 assert(is_linked(), "must be linked");
a61af66fc99e Initial load
duke
parents:
diff changeset
581 _init_state = loaded;
a61af66fc99e Initial load
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parents:
diff changeset
582 }
a61af66fc99e Initial load
duke
parents:
diff changeset
583
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
584 void InstanceKlass::link_class(TRAPS) {
0
a61af66fc99e Initial load
duke
parents:
diff changeset
585 assert(is_loaded(), "must be loaded");
a61af66fc99e Initial load
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parents:
diff changeset
586 if (!is_linked()) {
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
587 HandleMark hm(THREAD);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
588 instanceKlassHandle this_oop(THREAD, this);
0
a61af66fc99e Initial load
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parents:
diff changeset
589 link_class_impl(this_oop, true, CHECK);
a61af66fc99e Initial load
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parents:
diff changeset
590 }
a61af66fc99e Initial load
duke
parents:
diff changeset
591 }
a61af66fc99e Initial load
duke
parents:
diff changeset
592
a61af66fc99e Initial load
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parents:
diff changeset
593 // Called to verify that a class can link during initialization, without
a61af66fc99e Initial load
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parents:
diff changeset
594 // throwing a VerifyError.
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
595 bool InstanceKlass::link_class_or_fail(TRAPS) {
0
a61af66fc99e Initial load
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parents:
diff changeset
596 assert(is_loaded(), "must be loaded");
a61af66fc99e Initial load
duke
parents:
diff changeset
597 if (!is_linked()) {
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
598 HandleMark hm(THREAD);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
599 instanceKlassHandle this_oop(THREAD, this);
0
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parents:
diff changeset
600 link_class_impl(this_oop, false, CHECK_false);
a61af66fc99e Initial load
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parents:
diff changeset
601 }
a61af66fc99e Initial load
duke
parents:
diff changeset
602 return is_linked();
a61af66fc99e Initial load
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parents:
diff changeset
603 }
a61af66fc99e Initial load
duke
parents:
diff changeset
604
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
605 bool InstanceKlass::link_class_impl(
0
a61af66fc99e Initial load
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parents:
diff changeset
606 instanceKlassHandle this_oop, bool throw_verifyerror, TRAPS) {
a61af66fc99e Initial load
duke
parents:
diff changeset
607 // check for error state
a61af66fc99e Initial load
duke
parents:
diff changeset
608 if (this_oop->is_in_error_state()) {
a61af66fc99e Initial load
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parents:
diff changeset
609 ResourceMark rm(THREAD);
a61af66fc99e Initial load
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parents:
diff changeset
610 THROW_MSG_(vmSymbols::java_lang_NoClassDefFoundError(),
a61af66fc99e Initial load
duke
parents:
diff changeset
611 this_oop->external_name(), false);
a61af66fc99e Initial load
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parents:
diff changeset
612 }
a61af66fc99e Initial load
duke
parents:
diff changeset
613 // return if already verified
a61af66fc99e Initial load
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parents:
diff changeset
614 if (this_oop->is_linked()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
615 return true;
a61af66fc99e Initial load
duke
parents:
diff changeset
616 }
a61af66fc99e Initial load
duke
parents:
diff changeset
617
a61af66fc99e Initial load
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parents:
diff changeset
618 // Timing
a61af66fc99e Initial load
duke
parents:
diff changeset
619 // timer handles recursion
a61af66fc99e Initial load
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parents:
diff changeset
620 assert(THREAD->is_Java_thread(), "non-JavaThread in link_class_impl");
a61af66fc99e Initial load
duke
parents:
diff changeset
621 JavaThread* jt = (JavaThread*)THREAD;
a61af66fc99e Initial load
duke
parents:
diff changeset
622
a61af66fc99e Initial load
duke
parents:
diff changeset
623 // link super class before linking this class
a61af66fc99e Initial load
duke
parents:
diff changeset
624 instanceKlassHandle super(THREAD, this_oop->super());
a61af66fc99e Initial load
duke
parents:
diff changeset
625 if (super.not_null()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
626 if (super->is_interface()) { // check if super class is an interface
a61af66fc99e Initial load
duke
parents:
diff changeset
627 ResourceMark rm(THREAD);
a61af66fc99e Initial load
duke
parents:
diff changeset
628 Exceptions::fthrow(
a61af66fc99e Initial load
duke
parents:
diff changeset
629 THREAD_AND_LOCATION,
2177
3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 1972
diff changeset
630 vmSymbols::java_lang_IncompatibleClassChangeError(),
0
a61af66fc99e Initial load
duke
parents:
diff changeset
631 "class %s has interface %s as super class",
a61af66fc99e Initial load
duke
parents:
diff changeset
632 this_oop->external_name(),
a61af66fc99e Initial load
duke
parents:
diff changeset
633 super->external_name()
a61af66fc99e Initial load
duke
parents:
diff changeset
634 );
a61af66fc99e Initial load
duke
parents:
diff changeset
635 return false;
a61af66fc99e Initial load
duke
parents:
diff changeset
636 }
a61af66fc99e Initial load
duke
parents:
diff changeset
637
a61af66fc99e Initial load
duke
parents:
diff changeset
638 link_class_impl(super, throw_verifyerror, CHECK_false);
a61af66fc99e Initial load
duke
parents:
diff changeset
639 }
a61af66fc99e Initial load
duke
parents:
diff changeset
640
a61af66fc99e Initial load
duke
parents:
diff changeset
641 // link all interfaces implemented by this class before linking this class
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
642 Array<Klass*>* interfaces = this_oop->local_interfaces();
0
a61af66fc99e Initial load
duke
parents:
diff changeset
643 int num_interfaces = interfaces->length();
a61af66fc99e Initial load
duke
parents:
diff changeset
644 for (int index = 0; index < num_interfaces; index++) {
a61af66fc99e Initial load
duke
parents:
diff changeset
645 HandleMark hm(THREAD);
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
646 instanceKlassHandle ih(THREAD, interfaces->at(index));
0
a61af66fc99e Initial load
duke
parents:
diff changeset
647 link_class_impl(ih, throw_verifyerror, CHECK_false);
a61af66fc99e Initial load
duke
parents:
diff changeset
648 }
a61af66fc99e Initial load
duke
parents:
diff changeset
649
a61af66fc99e Initial load
duke
parents:
diff changeset
650 // in case the class is linked in the process of linking its superclasses
a61af66fc99e Initial load
duke
parents:
diff changeset
651 if (this_oop->is_linked()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
652 return true;
a61af66fc99e Initial load
duke
parents:
diff changeset
653 }
a61af66fc99e Initial load
duke
parents:
diff changeset
654
875
6a93908f268f 6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents: 676
diff changeset
655 // trace only the link time for this klass that includes
6a93908f268f 6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents: 676
diff changeset
656 // the verification time
6a93908f268f 6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents: 676
diff changeset
657 PerfClassTraceTime vmtimer(ClassLoader::perf_class_link_time(),
6a93908f268f 6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents: 676
diff changeset
658 ClassLoader::perf_class_link_selftime(),
6a93908f268f 6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents: 676
diff changeset
659 ClassLoader::perf_classes_linked(),
6a93908f268f 6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents: 676
diff changeset
660 jt->get_thread_stat()->perf_recursion_counts_addr(),
6a93908f268f 6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents: 676
diff changeset
661 jt->get_thread_stat()->perf_timers_addr(),
6a93908f268f 6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents: 676
diff changeset
662 PerfClassTraceTime::CLASS_LINK);
6a93908f268f 6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents: 676
diff changeset
663
0
a61af66fc99e Initial load
duke
parents:
diff changeset
664 // verification & rewriting
a61af66fc99e Initial load
duke
parents:
diff changeset
665 {
12811
3374b92de2d9 8025004: -XX:+CheckUnhandledOops asserts for JDK 8 Solaris fastdebug binaries
coleenp
parents: 12318
diff changeset
666 oop init_lock = this_oop->init_lock();
12946
b8860472c377 8014910: deadlock between JVM/TI ClassPrepare event handler and CompilerThread
iklam
parents: 12857
diff changeset
667 ObjectLocker ol(init_lock, THREAD, init_lock != NULL);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
668 // rewritten will have been set if loader constraint error found
a61af66fc99e Initial load
duke
parents:
diff changeset
669 // on an earlier link attempt
a61af66fc99e Initial load
duke
parents:
diff changeset
670 // don't verify or rewrite if already rewritten
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
671
0
a61af66fc99e Initial load
duke
parents:
diff changeset
672 if (!this_oop->is_linked()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
673 if (!this_oop->is_rewritten()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
674 {
a61af66fc99e Initial load
duke
parents:
diff changeset
675 // Timer includes any side effects of class verification (resolution,
a61af66fc99e Initial load
duke
parents:
diff changeset
676 // etc), but not recursive entry into verify_code().
875
6a93908f268f 6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents: 676
diff changeset
677 PerfClassTraceTime timer(ClassLoader::perf_class_verify_time(),
6a93908f268f 6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents: 676
diff changeset
678 ClassLoader::perf_class_verify_selftime(),
6a93908f268f 6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents: 676
diff changeset
679 ClassLoader::perf_classes_verified(),
6a93908f268f 6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents: 676
diff changeset
680 jt->get_thread_stat()->perf_recursion_counts_addr(),
6a93908f268f 6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents: 676
diff changeset
681 jt->get_thread_stat()->perf_timers_addr(),
6a93908f268f 6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents: 676
diff changeset
682 PerfClassTraceTime::CLASS_VERIFY);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
683 bool verify_ok = verify_code(this_oop, throw_verifyerror, THREAD);
a61af66fc99e Initial load
duke
parents:
diff changeset
684 if (!verify_ok) {
a61af66fc99e Initial load
duke
parents:
diff changeset
685 return false;
a61af66fc99e Initial load
duke
parents:
diff changeset
686 }
a61af66fc99e Initial load
duke
parents:
diff changeset
687 }
a61af66fc99e Initial load
duke
parents:
diff changeset
688
a61af66fc99e Initial load
duke
parents:
diff changeset
689 // Just in case a side-effect of verify linked this class already
a61af66fc99e Initial load
duke
parents:
diff changeset
690 // (which can sometimes happen since the verifier loads classes
a61af66fc99e Initial load
duke
parents:
diff changeset
691 // using custom class loaders, which are free to initialize things)
a61af66fc99e Initial load
duke
parents:
diff changeset
692 if (this_oop->is_linked()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
693 return true;
a61af66fc99e Initial load
duke
parents:
diff changeset
694 }
a61af66fc99e Initial load
duke
parents:
diff changeset
695
a61af66fc99e Initial load
duke
parents:
diff changeset
696 // also sets rewritten
a61af66fc99e Initial load
duke
parents:
diff changeset
697 this_oop->rewrite_class(CHECK_false);
a61af66fc99e Initial load
duke
parents:
diff changeset
698 }
a61af66fc99e Initial load
duke
parents:
diff changeset
699
3748
d3b9f2be46ab 7033141: assert(has_cp_cache(i)) failed: oob
coleenp
parents: 2408
diff changeset
700 // relocate jsrs and link methods after they are all rewritten
7459
cc6a617fffd2 8005494: SIGSEGV in Rewriter::relocate_and_link() when testing Weblogic with CompressedOops and KlassPtrs
coleenp
parents: 7457
diff changeset
701 this_oop->link_methods(CHECK_false);
3748
d3b9f2be46ab 7033141: assert(has_cp_cache(i)) failed: oob
coleenp
parents: 2408
diff changeset
702
0
a61af66fc99e Initial load
duke
parents:
diff changeset
703 // Initialize the vtable and interface table after
a61af66fc99e Initial load
duke
parents:
diff changeset
704 // methods have been rewritten since rewrite may
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
705 // fabricate new Method*s.
0
a61af66fc99e Initial load
duke
parents:
diff changeset
706 // also does loader constraint checking
a61af66fc99e Initial load
duke
parents:
diff changeset
707 if (!this_oop()->is_shared()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
708 ResourceMark rm(THREAD);
a61af66fc99e Initial load
duke
parents:
diff changeset
709 this_oop->vtable()->initialize_vtable(true, CHECK_false);
a61af66fc99e Initial load
duke
parents:
diff changeset
710 this_oop->itable()->initialize_itable(true, CHECK_false);
a61af66fc99e Initial load
duke
parents:
diff changeset
711 }
a61af66fc99e Initial load
duke
parents:
diff changeset
712 #ifdef ASSERT
a61af66fc99e Initial load
duke
parents:
diff changeset
713 else {
a61af66fc99e Initial load
duke
parents:
diff changeset
714 ResourceMark rm(THREAD);
a61af66fc99e Initial load
duke
parents:
diff changeset
715 this_oop->vtable()->verify(tty, true);
a61af66fc99e Initial load
duke
parents:
diff changeset
716 // In case itable verification is ever added.
a61af66fc99e Initial load
duke
parents:
diff changeset
717 // this_oop->itable()->verify(tty, true);
a61af66fc99e Initial load
duke
parents:
diff changeset
718 }
a61af66fc99e Initial load
duke
parents:
diff changeset
719 #endif
a61af66fc99e Initial load
duke
parents:
diff changeset
720 this_oop->set_init_state(linked);
a61af66fc99e Initial load
duke
parents:
diff changeset
721 if (JvmtiExport::should_post_class_prepare()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
722 Thread *thread = THREAD;
a61af66fc99e Initial load
duke
parents:
diff changeset
723 assert(thread->is_Java_thread(), "thread->is_Java_thread()");
a61af66fc99e Initial load
duke
parents:
diff changeset
724 JvmtiExport::post_class_prepare((JavaThread *) thread, this_oop());
a61af66fc99e Initial load
duke
parents:
diff changeset
725 }
a61af66fc99e Initial load
duke
parents:
diff changeset
726 }
a61af66fc99e Initial load
duke
parents:
diff changeset
727 }
a61af66fc99e Initial load
duke
parents:
diff changeset
728 return true;
a61af66fc99e Initial load
duke
parents:
diff changeset
729 }
a61af66fc99e Initial load
duke
parents:
diff changeset
730
a61af66fc99e Initial load
duke
parents:
diff changeset
731
a61af66fc99e Initial load
duke
parents:
diff changeset
732 // Rewrite the byte codes of all of the methods of a class.
a61af66fc99e Initial load
duke
parents:
diff changeset
733 // The rewriter must be called exactly once. Rewriting must happen after
a61af66fc99e Initial load
duke
parents:
diff changeset
734 // verification but before the first method of the class is executed.
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
735 void InstanceKlass::rewrite_class(TRAPS) {
0
a61af66fc99e Initial load
duke
parents:
diff changeset
736 assert(is_loaded(), "must be loaded");
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
737 instanceKlassHandle this_oop(THREAD, this);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
738 if (this_oop->is_rewritten()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
739 assert(this_oop()->is_shared(), "rewriting an unshared class?");
a61af66fc99e Initial load
duke
parents:
diff changeset
740 return;
a61af66fc99e Initial load
duke
parents:
diff changeset
741 }
3748
d3b9f2be46ab 7033141: assert(has_cp_cache(i)) failed: oob
coleenp
parents: 2408
diff changeset
742 Rewriter::rewrite(this_oop, CHECK);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
743 this_oop->set_rewritten();
a61af66fc99e Initial load
duke
parents:
diff changeset
744 }
a61af66fc99e Initial load
duke
parents:
diff changeset
745
3748
d3b9f2be46ab 7033141: assert(has_cp_cache(i)) failed: oob
coleenp
parents: 2408
diff changeset
746 // Now relocate and link method entry points after class is rewritten.
d3b9f2be46ab 7033141: assert(has_cp_cache(i)) failed: oob
coleenp
parents: 2408
diff changeset
747 // This is outside is_rewritten flag. In case of an exception, it can be
d3b9f2be46ab 7033141: assert(has_cp_cache(i)) failed: oob
coleenp
parents: 2408
diff changeset
748 // executed more than once.
7459
cc6a617fffd2 8005494: SIGSEGV in Rewriter::relocate_and_link() when testing Weblogic with CompressedOops and KlassPtrs
coleenp
parents: 7457
diff changeset
749 void InstanceKlass::link_methods(TRAPS) {
cc6a617fffd2 8005494: SIGSEGV in Rewriter::relocate_and_link() when testing Weblogic with CompressedOops and KlassPtrs
coleenp
parents: 7457
diff changeset
750 int len = methods()->length();
cc6a617fffd2 8005494: SIGSEGV in Rewriter::relocate_and_link() when testing Weblogic with CompressedOops and KlassPtrs
coleenp
parents: 7457
diff changeset
751 for (int i = len-1; i >= 0; i--) {
cc6a617fffd2 8005494: SIGSEGV in Rewriter::relocate_and_link() when testing Weblogic with CompressedOops and KlassPtrs
coleenp
parents: 7457
diff changeset
752 methodHandle m(THREAD, methods()->at(i));
cc6a617fffd2 8005494: SIGSEGV in Rewriter::relocate_and_link() when testing Weblogic with CompressedOops and KlassPtrs
coleenp
parents: 7457
diff changeset
753
cc6a617fffd2 8005494: SIGSEGV in Rewriter::relocate_and_link() when testing Weblogic with CompressedOops and KlassPtrs
coleenp
parents: 7457
diff changeset
754 // Set up method entry points for compiler and interpreter .
cc6a617fffd2 8005494: SIGSEGV in Rewriter::relocate_and_link() when testing Weblogic with CompressedOops and KlassPtrs
coleenp
parents: 7457
diff changeset
755 m->link_method(m, CHECK);
cc6a617fffd2 8005494: SIGSEGV in Rewriter::relocate_and_link() when testing Weblogic with CompressedOops and KlassPtrs
coleenp
parents: 7457
diff changeset
756
cc6a617fffd2 8005494: SIGSEGV in Rewriter::relocate_and_link() when testing Weblogic with CompressedOops and KlassPtrs
coleenp
parents: 7457
diff changeset
757 // This is for JVMTI and unrelated to relocator but the last thing we do
cc6a617fffd2 8005494: SIGSEGV in Rewriter::relocate_and_link() when testing Weblogic with CompressedOops and KlassPtrs
coleenp
parents: 7457
diff changeset
758 #ifdef ASSERT
cc6a617fffd2 8005494: SIGSEGV in Rewriter::relocate_and_link() when testing Weblogic with CompressedOops and KlassPtrs
coleenp
parents: 7457
diff changeset
759 if (StressMethodComparator) {
cc6a617fffd2 8005494: SIGSEGV in Rewriter::relocate_and_link() when testing Weblogic with CompressedOops and KlassPtrs
coleenp
parents: 7457
diff changeset
760 ResourceMark rm(THREAD);
cc6a617fffd2 8005494: SIGSEGV in Rewriter::relocate_and_link() when testing Weblogic with CompressedOops and KlassPtrs
coleenp
parents: 7457
diff changeset
761 static int nmc = 0;
cc6a617fffd2 8005494: SIGSEGV in Rewriter::relocate_and_link() when testing Weblogic with CompressedOops and KlassPtrs
coleenp
parents: 7457
diff changeset
762 for (int j = i; j >= 0 && j >= i-4; j--) {
cc6a617fffd2 8005494: SIGSEGV in Rewriter::relocate_and_link() when testing Weblogic with CompressedOops and KlassPtrs
coleenp
parents: 7457
diff changeset
763 if ((++nmc % 1000) == 0) tty->print_cr("Have run MethodComparator %d times...", nmc);
cc6a617fffd2 8005494: SIGSEGV in Rewriter::relocate_and_link() when testing Weblogic with CompressedOops and KlassPtrs
coleenp
parents: 7457
diff changeset
764 bool z = MethodComparator::methods_EMCP(m(),
cc6a617fffd2 8005494: SIGSEGV in Rewriter::relocate_and_link() when testing Weblogic with CompressedOops and KlassPtrs
coleenp
parents: 7457
diff changeset
765 methods()->at(j));
cc6a617fffd2 8005494: SIGSEGV in Rewriter::relocate_and_link() when testing Weblogic with CompressedOops and KlassPtrs
coleenp
parents: 7457
diff changeset
766 if (j == i && !z) {
cc6a617fffd2 8005494: SIGSEGV in Rewriter::relocate_and_link() when testing Weblogic with CompressedOops and KlassPtrs
coleenp
parents: 7457
diff changeset
767 tty->print("MethodComparator FAIL: "); m->print(); m->print_codes();
cc6a617fffd2 8005494: SIGSEGV in Rewriter::relocate_and_link() when testing Weblogic with CompressedOops and KlassPtrs
coleenp
parents: 7457
diff changeset
768 assert(z, "method must compare equal to itself");
cc6a617fffd2 8005494: SIGSEGV in Rewriter::relocate_and_link() when testing Weblogic with CompressedOops and KlassPtrs
coleenp
parents: 7457
diff changeset
769 }
cc6a617fffd2 8005494: SIGSEGV in Rewriter::relocate_and_link() when testing Weblogic with CompressedOops and KlassPtrs
coleenp
parents: 7457
diff changeset
770 }
cc6a617fffd2 8005494: SIGSEGV in Rewriter::relocate_and_link() when testing Weblogic with CompressedOops and KlassPtrs
coleenp
parents: 7457
diff changeset
771 }
cc6a617fffd2 8005494: SIGSEGV in Rewriter::relocate_and_link() when testing Weblogic with CompressedOops and KlassPtrs
coleenp
parents: 7457
diff changeset
772 #endif //ASSERT
cc6a617fffd2 8005494: SIGSEGV in Rewriter::relocate_and_link() when testing Weblogic with CompressedOops and KlassPtrs
coleenp
parents: 7457
diff changeset
773 }
3748
d3b9f2be46ab 7033141: assert(has_cp_cache(i)) failed: oob
coleenp
parents: 2408
diff changeset
774 }
d3b9f2be46ab 7033141: assert(has_cp_cache(i)) failed: oob
coleenp
parents: 2408
diff changeset
775
0
a61af66fc99e Initial load
duke
parents:
diff changeset
776
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
777 void InstanceKlass::initialize_impl(instanceKlassHandle this_oop, TRAPS) {
0
a61af66fc99e Initial load
duke
parents:
diff changeset
778 // Make sure klass is linked (verified) before initialization
a61af66fc99e Initial load
duke
parents:
diff changeset
779 // A class could already be verified, since it has been reflected upon.
a61af66fc99e Initial load
duke
parents:
diff changeset
780 this_oop->link_class(CHECK);
a61af66fc99e Initial load
duke
parents:
diff changeset
781
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
782 DTRACE_CLASSINIT_PROBE(required, InstanceKlass::cast(this_oop()), -1);
1324
e392695de029 6935224: Adding new DTrace probes to work with Palantir
fparain
parents: 1155
diff changeset
783
e392695de029 6935224: Adding new DTrace probes to work with Palantir
fparain
parents: 1155
diff changeset
784 bool wait = false;
e392695de029 6935224: Adding new DTrace probes to work with Palantir
fparain
parents: 1155
diff changeset
785
0
a61af66fc99e Initial load
duke
parents:
diff changeset
786 // refer to the JVM book page 47 for description of steps
a61af66fc99e Initial load
duke
parents:
diff changeset
787 // Step 1
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
788 {
12811
3374b92de2d9 8025004: -XX:+CheckUnhandledOops asserts for JDK 8 Solaris fastdebug binaries
coleenp
parents: 12318
diff changeset
789 oop init_lock = this_oop->init_lock();
12946
b8860472c377 8014910: deadlock between JVM/TI ClassPrepare event handler and CompilerThread
iklam
parents: 12857
diff changeset
790 ObjectLocker ol(init_lock, THREAD, init_lock != NULL);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
791
a61af66fc99e Initial load
duke
parents:
diff changeset
792 Thread *self = THREAD; // it's passed the current thread
a61af66fc99e Initial load
duke
parents:
diff changeset
793
a61af66fc99e Initial load
duke
parents:
diff changeset
794 // Step 2
a61af66fc99e Initial load
duke
parents:
diff changeset
795 // If we were to use wait() instead of waitInterruptibly() then
a61af66fc99e Initial load
duke
parents:
diff changeset
796 // we might end up throwing IE from link/symbol resolution sites
a61af66fc99e Initial load
duke
parents:
diff changeset
797 // that aren't expected to throw. This would wreak havoc. See 6320309.
a61af66fc99e Initial load
duke
parents:
diff changeset
798 while(this_oop->is_being_initialized() && !this_oop->is_reentrant_initialization(self)) {
1324
e392695de029 6935224: Adding new DTrace probes to work with Palantir
fparain
parents: 1155
diff changeset
799 wait = true;
0
a61af66fc99e Initial load
duke
parents:
diff changeset
800 ol.waitUninterruptibly(CHECK);
a61af66fc99e Initial load
duke
parents:
diff changeset
801 }
a61af66fc99e Initial load
duke
parents:
diff changeset
802
a61af66fc99e Initial load
duke
parents:
diff changeset
803 // Step 3
1324
e392695de029 6935224: Adding new DTrace probes to work with Palantir
fparain
parents: 1155
diff changeset
804 if (this_oop->is_being_initialized() && this_oop->is_reentrant_initialization(self)) {
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
805 DTRACE_CLASSINIT_PROBE_WAIT(recursive, InstanceKlass::cast(this_oop()), -1,wait);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
806 return;
1324
e392695de029 6935224: Adding new DTrace probes to work with Palantir
fparain
parents: 1155
diff changeset
807 }
0
a61af66fc99e Initial load
duke
parents:
diff changeset
808
a61af66fc99e Initial load
duke
parents:
diff changeset
809 // Step 4
1324
e392695de029 6935224: Adding new DTrace probes to work with Palantir
fparain
parents: 1155
diff changeset
810 if (this_oop->is_initialized()) {
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
811 DTRACE_CLASSINIT_PROBE_WAIT(concurrent, InstanceKlass::cast(this_oop()), -1,wait);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
812 return;
1324
e392695de029 6935224: Adding new DTrace probes to work with Palantir
fparain
parents: 1155
diff changeset
813 }
0
a61af66fc99e Initial load
duke
parents:
diff changeset
814
a61af66fc99e Initial load
duke
parents:
diff changeset
815 // Step 5
a61af66fc99e Initial load
duke
parents:
diff changeset
816 if (this_oop->is_in_error_state()) {
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
817 DTRACE_CLASSINIT_PROBE_WAIT(erroneous, InstanceKlass::cast(this_oop()), -1,wait);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
818 ResourceMark rm(THREAD);
a61af66fc99e Initial load
duke
parents:
diff changeset
819 const char* desc = "Could not initialize class ";
a61af66fc99e Initial load
duke
parents:
diff changeset
820 const char* className = this_oop->external_name();
a61af66fc99e Initial load
duke
parents:
diff changeset
821 size_t msglen = strlen(desc) + strlen(className) + 1;
1751
2528b5bd749c 6980262: Memory leak when exception is thrown in static initializer
kamg
parents: 1706
diff changeset
822 char* message = NEW_RESOURCE_ARRAY(char, msglen);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
823 if (NULL == message) {
a61af66fc99e Initial load
duke
parents:
diff changeset
824 // Out of memory: can't create detailed error message
a61af66fc99e Initial load
duke
parents:
diff changeset
825 THROW_MSG(vmSymbols::java_lang_NoClassDefFoundError(), className);
a61af66fc99e Initial load
duke
parents:
diff changeset
826 } else {
a61af66fc99e Initial load
duke
parents:
diff changeset
827 jio_snprintf(message, msglen, "%s%s", desc, className);
a61af66fc99e Initial load
duke
parents:
diff changeset
828 THROW_MSG(vmSymbols::java_lang_NoClassDefFoundError(), message);
a61af66fc99e Initial load
duke
parents:
diff changeset
829 }
a61af66fc99e Initial load
duke
parents:
diff changeset
830 }
a61af66fc99e Initial load
duke
parents:
diff changeset
831
a61af66fc99e Initial load
duke
parents:
diff changeset
832 // Step 6
a61af66fc99e Initial load
duke
parents:
diff changeset
833 this_oop->set_init_state(being_initialized);
a61af66fc99e Initial load
duke
parents:
diff changeset
834 this_oop->set_init_thread(self);
a61af66fc99e Initial load
duke
parents:
diff changeset
835 }
a61af66fc99e Initial load
duke
parents:
diff changeset
836
a61af66fc99e Initial load
duke
parents:
diff changeset
837 // Step 7
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
838 Klass* super_klass = this_oop->super();
6983
070d523b96a7 8001471: Klass::cast() does nothing
hseigel
parents: 6934
diff changeset
839 if (super_klass != NULL && !this_oop->is_interface() && super_klass->should_be_initialized()) {
070d523b96a7 8001471: Klass::cast() does nothing
hseigel
parents: 6934
diff changeset
840 super_klass->initialize(THREAD);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
841
a61af66fc99e Initial load
duke
parents:
diff changeset
842 if (HAS_PENDING_EXCEPTION) {
a61af66fc99e Initial load
duke
parents:
diff changeset
843 Handle e(THREAD, PENDING_EXCEPTION);
a61af66fc99e Initial load
duke
parents:
diff changeset
844 CLEAR_PENDING_EXCEPTION;
a61af66fc99e Initial load
duke
parents:
diff changeset
845 {
a61af66fc99e Initial load
duke
parents:
diff changeset
846 EXCEPTION_MARK;
a61af66fc99e Initial load
duke
parents:
diff changeset
847 this_oop->set_initialization_state_and_notify(initialization_error, THREAD); // Locks object, set state, and notify all waiting threads
a61af66fc99e Initial load
duke
parents:
diff changeset
848 CLEAR_PENDING_EXCEPTION; // ignore any exception thrown, superclass initialization error is thrown below
a61af66fc99e Initial load
duke
parents:
diff changeset
849 }
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
850 DTRACE_CLASSINIT_PROBE_WAIT(super__failed, InstanceKlass::cast(this_oop()), -1,wait);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
851 THROW_OOP(e());
a61af66fc99e Initial load
duke
parents:
diff changeset
852 }
a61af66fc99e Initial load
duke
parents:
diff changeset
853 }
a61af66fc99e Initial load
duke
parents:
diff changeset
854
6934
4735d2c84362 7200776: Implement default methods in interfaces
kamg
parents: 6831
diff changeset
855 if (this_oop->has_default_methods()) {
4735d2c84362 7200776: Implement default methods in interfaces
kamg
parents: 6831
diff changeset
856 // Step 7.5: initialize any interfaces which have default methods
4735d2c84362 7200776: Implement default methods in interfaces
kamg
parents: 6831
diff changeset
857 for (int i = 0; i < this_oop->local_interfaces()->length(); ++i) {
4735d2c84362 7200776: Implement default methods in interfaces
kamg
parents: 6831
diff changeset
858 Klass* iface = this_oop->local_interfaces()->at(i);
4735d2c84362 7200776: Implement default methods in interfaces
kamg
parents: 6831
diff changeset
859 InstanceKlass* ik = InstanceKlass::cast(iface);
4735d2c84362 7200776: Implement default methods in interfaces
kamg
parents: 6831
diff changeset
860 if (ik->has_default_methods() && ik->should_be_initialized()) {
4735d2c84362 7200776: Implement default methods in interfaces
kamg
parents: 6831
diff changeset
861 ik->initialize(THREAD);
4735d2c84362 7200776: Implement default methods in interfaces
kamg
parents: 6831
diff changeset
862
4735d2c84362 7200776: Implement default methods in interfaces
kamg
parents: 6831
diff changeset
863 if (HAS_PENDING_EXCEPTION) {
4735d2c84362 7200776: Implement default methods in interfaces
kamg
parents: 6831
diff changeset
864 Handle e(THREAD, PENDING_EXCEPTION);
4735d2c84362 7200776: Implement default methods in interfaces
kamg
parents: 6831
diff changeset
865 CLEAR_PENDING_EXCEPTION;
4735d2c84362 7200776: Implement default methods in interfaces
kamg
parents: 6831
diff changeset
866 {
4735d2c84362 7200776: Implement default methods in interfaces
kamg
parents: 6831
diff changeset
867 EXCEPTION_MARK;
4735d2c84362 7200776: Implement default methods in interfaces
kamg
parents: 6831
diff changeset
868 // Locks object, set state, and notify all waiting threads
4735d2c84362 7200776: Implement default methods in interfaces
kamg
parents: 6831
diff changeset
869 this_oop->set_initialization_state_and_notify(
4735d2c84362 7200776: Implement default methods in interfaces
kamg
parents: 6831
diff changeset
870 initialization_error, THREAD);
4735d2c84362 7200776: Implement default methods in interfaces
kamg
parents: 6831
diff changeset
871
4735d2c84362 7200776: Implement default methods in interfaces
kamg
parents: 6831
diff changeset
872 // ignore any exception thrown, superclass initialization error is
4735d2c84362 7200776: Implement default methods in interfaces
kamg
parents: 6831
diff changeset
873 // thrown below
4735d2c84362 7200776: Implement default methods in interfaces
kamg
parents: 6831
diff changeset
874 CLEAR_PENDING_EXCEPTION;
4735d2c84362 7200776: Implement default methods in interfaces
kamg
parents: 6831
diff changeset
875 }
4735d2c84362 7200776: Implement default methods in interfaces
kamg
parents: 6831
diff changeset
876 DTRACE_CLASSINIT_PROBE_WAIT(
4735d2c84362 7200776: Implement default methods in interfaces
kamg
parents: 6831
diff changeset
877 super__failed, InstanceKlass::cast(this_oop()), -1, wait);
4735d2c84362 7200776: Implement default methods in interfaces
kamg
parents: 6831
diff changeset
878 THROW_OOP(e());
4735d2c84362 7200776: Implement default methods in interfaces
kamg
parents: 6831
diff changeset
879 }
4735d2c84362 7200776: Implement default methods in interfaces
kamg
parents: 6831
diff changeset
880 }
4735d2c84362 7200776: Implement default methods in interfaces
kamg
parents: 6831
diff changeset
881 }
4735d2c84362 7200776: Implement default methods in interfaces
kamg
parents: 6831
diff changeset
882 }
4735d2c84362 7200776: Implement default methods in interfaces
kamg
parents: 6831
diff changeset
883
0
a61af66fc99e Initial load
duke
parents:
diff changeset
884 // Step 8
a61af66fc99e Initial load
duke
parents:
diff changeset
885 {
a61af66fc99e Initial load
duke
parents:
diff changeset
886 assert(THREAD->is_Java_thread(), "non-JavaThread in initialize_impl");
a61af66fc99e Initial load
duke
parents:
diff changeset
887 JavaThread* jt = (JavaThread*)THREAD;
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
888 DTRACE_CLASSINIT_PROBE_WAIT(clinit, InstanceKlass::cast(this_oop()), -1,wait);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
889 // Timer includes any side effects of class initialization (resolution,
a61af66fc99e Initial load
duke
parents:
diff changeset
890 // etc), but not recursive entry into call_class_initializer().
875
6a93908f268f 6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents: 676
diff changeset
891 PerfClassTraceTime timer(ClassLoader::perf_class_init_time(),
6a93908f268f 6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents: 676
diff changeset
892 ClassLoader::perf_class_init_selftime(),
6a93908f268f 6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents: 676
diff changeset
893 ClassLoader::perf_classes_inited(),
6a93908f268f 6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents: 676
diff changeset
894 jt->get_thread_stat()->perf_recursion_counts_addr(),
6a93908f268f 6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents: 676
diff changeset
895 jt->get_thread_stat()->perf_timers_addr(),
6a93908f268f 6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents: 676
diff changeset
896 PerfClassTraceTime::CLASS_CLINIT);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
897 this_oop->call_class_initializer(THREAD);
a61af66fc99e Initial load
duke
parents:
diff changeset
898 }
a61af66fc99e Initial load
duke
parents:
diff changeset
899
a61af66fc99e Initial load
duke
parents:
diff changeset
900 // Step 9
a61af66fc99e Initial load
duke
parents:
diff changeset
901 if (!HAS_PENDING_EXCEPTION) {
a61af66fc99e Initial load
duke
parents:
diff changeset
902 this_oop->set_initialization_state_and_notify(fully_initialized, CHECK);
a61af66fc99e Initial load
duke
parents:
diff changeset
903 { ResourceMark rm(THREAD);
a61af66fc99e Initial load
duke
parents:
diff changeset
904 debug_only(this_oop->vtable()->verify(tty, true);)
a61af66fc99e Initial load
duke
parents:
diff changeset
905 }
a61af66fc99e Initial load
duke
parents:
diff changeset
906 }
a61af66fc99e Initial load
duke
parents:
diff changeset
907 else {
a61af66fc99e Initial load
duke
parents:
diff changeset
908 // Step 10 and 11
a61af66fc99e Initial load
duke
parents:
diff changeset
909 Handle e(THREAD, PENDING_EXCEPTION);
a61af66fc99e Initial load
duke
parents:
diff changeset
910 CLEAR_PENDING_EXCEPTION;
a61af66fc99e Initial load
duke
parents:
diff changeset
911 {
a61af66fc99e Initial load
duke
parents:
diff changeset
912 EXCEPTION_MARK;
a61af66fc99e Initial load
duke
parents:
diff changeset
913 this_oop->set_initialization_state_and_notify(initialization_error, THREAD);
a61af66fc99e Initial load
duke
parents:
diff changeset
914 CLEAR_PENDING_EXCEPTION; // ignore any exception thrown, class initialization error is thrown below
a61af66fc99e Initial load
duke
parents:
diff changeset
915 }
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
916 DTRACE_CLASSINIT_PROBE_WAIT(error, InstanceKlass::cast(this_oop()), -1,wait);
1142
4ce7240d622c 6914300: ciEnv should export all well known classes
never
parents: 1039
diff changeset
917 if (e->is_a(SystemDictionary::Error_klass())) {
0
a61af66fc99e Initial load
duke
parents:
diff changeset
918 THROW_OOP(e());
a61af66fc99e Initial load
duke
parents:
diff changeset
919 } else {
a61af66fc99e Initial load
duke
parents:
diff changeset
920 JavaCallArguments args(e);
2177
3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 1972
diff changeset
921 THROW_ARG(vmSymbols::java_lang_ExceptionInInitializerError(),
3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 1972
diff changeset
922 vmSymbols::throwable_void_signature(),
0
a61af66fc99e Initial load
duke
parents:
diff changeset
923 &args);
a61af66fc99e Initial load
duke
parents:
diff changeset
924 }
a61af66fc99e Initial load
duke
parents:
diff changeset
925 }
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
926 DTRACE_CLASSINIT_PROBE_WAIT(end, InstanceKlass::cast(this_oop()), -1,wait);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
927 }
a61af66fc99e Initial load
duke
parents:
diff changeset
928
a61af66fc99e Initial load
duke
parents:
diff changeset
929
a61af66fc99e Initial load
duke
parents:
diff changeset
930 // Note: implementation moved to static method to expose the this pointer.
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
931 void InstanceKlass::set_initialization_state_and_notify(ClassState state, TRAPS) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
932 instanceKlassHandle kh(THREAD, this);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
933 set_initialization_state_and_notify_impl(kh, state, CHECK);
a61af66fc99e Initial load
duke
parents:
diff changeset
934 }
a61af66fc99e Initial load
duke
parents:
diff changeset
935
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
936 void InstanceKlass::set_initialization_state_and_notify_impl(instanceKlassHandle this_oop, ClassState state, TRAPS) {
12811
3374b92de2d9 8025004: -XX:+CheckUnhandledOops asserts for JDK 8 Solaris fastdebug binaries
coleenp
parents: 12318
diff changeset
937 oop init_lock = this_oop->init_lock();
12946
b8860472c377 8014910: deadlock between JVM/TI ClassPrepare event handler and CompilerThread
iklam
parents: 12857
diff changeset
938 ObjectLocker ol(init_lock, THREAD, init_lock != NULL);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
939 this_oop->set_init_state(state);
12946
b8860472c377 8014910: deadlock between JVM/TI ClassPrepare event handler and CompilerThread
iklam
parents: 12857
diff changeset
940 this_oop->fence_and_clear_init_lock();
0
a61af66fc99e Initial load
duke
parents:
diff changeset
941 ol.notify_all(CHECK);
a61af66fc99e Initial load
duke
parents:
diff changeset
942 }
a61af66fc99e Initial load
duke
parents:
diff changeset
943
5998
49036505ab5f 7154670: The instanceKlass _implementors[] and _nof_implementors are not needed for non-interface klass.
jiangli
parents: 5969
diff changeset
944 // The embedded _implementor field can only record one implementor.
49036505ab5f 7154670: The instanceKlass _implementors[] and _nof_implementors are not needed for non-interface klass.
jiangli
parents: 5969
diff changeset
945 // When there are more than one implementors, the _implementor field
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
946 // is set to the interface Klass* itself. Following are the possible
5998
49036505ab5f 7154670: The instanceKlass _implementors[] and _nof_implementors are not needed for non-interface klass.
jiangli
parents: 5969
diff changeset
947 // values for the _implementor field:
49036505ab5f 7154670: The instanceKlass _implementors[] and _nof_implementors are not needed for non-interface klass.
jiangli
parents: 5969
diff changeset
948 // NULL - no implementor
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
949 // implementor Klass* - one implementor
5998
49036505ab5f 7154670: The instanceKlass _implementors[] and _nof_implementors are not needed for non-interface klass.
jiangli
parents: 5969
diff changeset
950 // self - more than one implementor
49036505ab5f 7154670: The instanceKlass _implementors[] and _nof_implementors are not needed for non-interface klass.
jiangli
parents: 5969
diff changeset
951 //
49036505ab5f 7154670: The instanceKlass _implementors[] and _nof_implementors are not needed for non-interface klass.
jiangli
parents: 5969
diff changeset
952 // The _implementor field only exists for interfaces.
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
953 void InstanceKlass::add_implementor(Klass* k) {
0
a61af66fc99e Initial load
duke
parents:
diff changeset
954 assert(Compile_lock->owned_by_self(), "");
5998
49036505ab5f 7154670: The instanceKlass _implementors[] and _nof_implementors are not needed for non-interface klass.
jiangli
parents: 5969
diff changeset
955 assert(is_interface(), "not interface");
0
a61af66fc99e Initial load
duke
parents:
diff changeset
956 // Filter out my subinterfaces.
a61af66fc99e Initial load
duke
parents:
diff changeset
957 // (Note: Interfaces are never on the subklass list.)
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
958 if (InstanceKlass::cast(k)->is_interface()) return;
0
a61af66fc99e Initial load
duke
parents:
diff changeset
959
a61af66fc99e Initial load
duke
parents:
diff changeset
960 // Filter out subclasses whose supers already implement me.
a61af66fc99e Initial load
duke
parents:
diff changeset
961 // (Note: CHA must walk subclasses of direct implementors
a61af66fc99e Initial load
duke
parents:
diff changeset
962 // in order to locate indirect implementors.)
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
963 Klass* sk = InstanceKlass::cast(k)->super();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
964 if (sk != NULL && InstanceKlass::cast(sk)->implements_interface(this))
0
a61af66fc99e Initial load
duke
parents:
diff changeset
965 // We only need to check one immediate superclass, since the
a61af66fc99e Initial load
duke
parents:
diff changeset
966 // implements_interface query looks at transitive_interfaces.
a61af66fc99e Initial load
duke
parents:
diff changeset
967 // Any supers of the super have the same (or fewer) transitive_interfaces.
a61af66fc99e Initial load
duke
parents:
diff changeset
968 return;
a61af66fc99e Initial load
duke
parents:
diff changeset
969
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
970 Klass* ik = implementor();
5998
49036505ab5f 7154670: The instanceKlass _implementors[] and _nof_implementors are not needed for non-interface klass.
jiangli
parents: 5969
diff changeset
971 if (ik == NULL) {
49036505ab5f 7154670: The instanceKlass _implementors[] and _nof_implementors are not needed for non-interface klass.
jiangli
parents: 5969
diff changeset
972 set_implementor(k);
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
973 } else if (ik != this) {
5998
49036505ab5f 7154670: The instanceKlass _implementors[] and _nof_implementors are not needed for non-interface klass.
jiangli
parents: 5969
diff changeset
974 // There is already an implementor. Use itself as an indicator of
49036505ab5f 7154670: The instanceKlass _implementors[] and _nof_implementors are not needed for non-interface klass.
jiangli
parents: 5969
diff changeset
975 // more than one implementors.
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
976 set_implementor(this);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
977 }
a61af66fc99e Initial load
duke
parents:
diff changeset
978
a61af66fc99e Initial load
duke
parents:
diff changeset
979 // The implementor also implements the transitive_interfaces
a61af66fc99e Initial load
duke
parents:
diff changeset
980 for (int index = 0; index < local_interfaces()->length(); index++) {
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
981 InstanceKlass::cast(local_interfaces()->at(index))->add_implementor(k);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
982 }
a61af66fc99e Initial load
duke
parents:
diff changeset
983 }
a61af66fc99e Initial load
duke
parents:
diff changeset
984
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
985 void InstanceKlass::init_implementor() {
5998
49036505ab5f 7154670: The instanceKlass _implementors[] and _nof_implementors are not needed for non-interface klass.
jiangli
parents: 5969
diff changeset
986 if (is_interface()) {
49036505ab5f 7154670: The instanceKlass _implementors[] and _nof_implementors are not needed for non-interface klass.
jiangli
parents: 5969
diff changeset
987 set_implementor(NULL);
49036505ab5f 7154670: The instanceKlass _implementors[] and _nof_implementors are not needed for non-interface klass.
jiangli
parents: 5969
diff changeset
988 }
0
a61af66fc99e Initial load
duke
parents:
diff changeset
989 }
a61af66fc99e Initial load
duke
parents:
diff changeset
990
a61af66fc99e Initial load
duke
parents:
diff changeset
991
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
992 void InstanceKlass::process_interfaces(Thread *thread) {
0
a61af66fc99e Initial load
duke
parents:
diff changeset
993 // link this class into the implementors list of every interface it implements
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
994 Klass* this_as_klass_oop = this;
0
a61af66fc99e Initial load
duke
parents:
diff changeset
995 for (int i = local_interfaces()->length() - 1; i >= 0; i--) {
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
996 assert(local_interfaces()->at(i)->is_klass(), "must be a klass");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
997 InstanceKlass* interf = InstanceKlass::cast(local_interfaces()->at(i));
0
a61af66fc99e Initial load
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parents:
diff changeset
998 assert(interf->is_interface(), "expected interface");
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
999 interf->add_implementor(this_as_klass_oop);
0
a61af66fc99e Initial load
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parents:
diff changeset
1000 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1001 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1002
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1003 bool InstanceKlass::can_be_primary_super_slow() const {
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1004 if (is_interface())
a61af66fc99e Initial load
duke
parents:
diff changeset
1005 return false;
a61af66fc99e Initial load
duke
parents:
diff changeset
1006 else
a61af66fc99e Initial load
duke
parents:
diff changeset
1007 return Klass::can_be_primary_super_slow();
a61af66fc99e Initial load
duke
parents:
diff changeset
1008 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1009
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1010 GrowableArray<Klass*>* InstanceKlass::compute_secondary_supers(int num_extra_slots) {
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1011 // The secondaries are the implemented interfaces.
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1012 InstanceKlass* ik = InstanceKlass::cast(this);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1013 Array<Klass*>* interfaces = ik->transitive_interfaces();
0
a61af66fc99e Initial load
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parents:
diff changeset
1014 int num_secondaries = num_extra_slots + interfaces->length();
a61af66fc99e Initial load
duke
parents:
diff changeset
1015 if (num_secondaries == 0) {
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1016 // Must share this for correct bootstrapping!
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1017 set_secondary_supers(Universe::the_empty_klass_array());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1018 return NULL;
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1019 } else if (num_extra_slots == 0) {
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1020 // The secondary super list is exactly the same as the transitive interfaces.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1021 // Redefine classes has to be careful not to delete this!
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1022 set_secondary_supers(interfaces);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1023 return NULL;
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1024 } else {
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1025 // Copy transitive interfaces to a temporary growable array to be constructed
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1026 // into the secondary super list with extra slots.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1027 GrowableArray<Klass*>* secondaries = new GrowableArray<Klass*>(interfaces->length());
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1028 for (int i = 0; i < interfaces->length(); i++) {
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1029 secondaries->push(interfaces->at(i));
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1030 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1031 return secondaries;
a61af66fc99e Initial load
duke
parents:
diff changeset
1032 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1033 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1034
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1035 bool InstanceKlass::compute_is_subtype_of(Klass* k) {
6983
070d523b96a7 8001471: Klass::cast() does nothing
hseigel
parents: 6934
diff changeset
1036 if (k->is_interface()) {
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1037 return implements_interface(k);
a61af66fc99e Initial load
duke
parents:
diff changeset
1038 } else {
a61af66fc99e Initial load
duke
parents:
diff changeset
1039 return Klass::compute_is_subtype_of(k);
a61af66fc99e Initial load
duke
parents:
diff changeset
1040 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1041 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1042
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1043 bool InstanceKlass::implements_interface(Klass* k) const {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1044 if (this == k) return true;
6983
070d523b96a7 8001471: Klass::cast() does nothing
hseigel
parents: 6934
diff changeset
1045 assert(k->is_interface(), "should be an interface class");
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1046 for (int i = 0; i < transitive_interfaces()->length(); i++) {
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1047 if (transitive_interfaces()->at(i) == k) {
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1048 return true;
a61af66fc99e Initial load
duke
parents:
diff changeset
1049 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1050 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1051 return false;
a61af66fc99e Initial load
duke
parents:
diff changeset
1052 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1053
13401
22eaa15b7960 8026065: InterfaceMethodref for invokespecial must name a direct superinterface
hseigel
parents: 13080
diff changeset
1054 bool InstanceKlass::is_same_or_direct_interface(Klass *k) const {
22eaa15b7960 8026065: InterfaceMethodref for invokespecial must name a direct superinterface
hseigel
parents: 13080
diff changeset
1055 // Verify direct super interface
22eaa15b7960 8026065: InterfaceMethodref for invokespecial must name a direct superinterface
hseigel
parents: 13080
diff changeset
1056 if (this == k) return true;
22eaa15b7960 8026065: InterfaceMethodref for invokespecial must name a direct superinterface
hseigel
parents: 13080
diff changeset
1057 assert(k->is_interface(), "should be an interface class");
22eaa15b7960 8026065: InterfaceMethodref for invokespecial must name a direct superinterface
hseigel
parents: 13080
diff changeset
1058 for (int i = 0; i < local_interfaces()->length(); i++) {
22eaa15b7960 8026065: InterfaceMethodref for invokespecial must name a direct superinterface
hseigel
parents: 13080
diff changeset
1059 if (local_interfaces()->at(i) == k) {
22eaa15b7960 8026065: InterfaceMethodref for invokespecial must name a direct superinterface
hseigel
parents: 13080
diff changeset
1060 return true;
22eaa15b7960 8026065: InterfaceMethodref for invokespecial must name a direct superinterface
hseigel
parents: 13080
diff changeset
1061 }
22eaa15b7960 8026065: InterfaceMethodref for invokespecial must name a direct superinterface
hseigel
parents: 13080
diff changeset
1062 }
22eaa15b7960 8026065: InterfaceMethodref for invokespecial must name a direct superinterface
hseigel
parents: 13080
diff changeset
1063 return false;
22eaa15b7960 8026065: InterfaceMethodref for invokespecial must name a direct superinterface
hseigel
parents: 13080
diff changeset
1064 }
22eaa15b7960 8026065: InterfaceMethodref for invokespecial must name a direct superinterface
hseigel
parents: 13080
diff changeset
1065
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1066 objArrayOop InstanceKlass::allocate_objArray(int n, int length, TRAPS) {
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1067 if (length < 0) THROW_0(vmSymbols::java_lang_NegativeArraySizeException());
a61af66fc99e Initial load
duke
parents:
diff changeset
1068 if (length > arrayOopDesc::max_array_length(T_OBJECT)) {
876
1413494da700 6850957: Honor -XX:OnOutOfMemoryError when array size exceeds VM limit
martin
parents: 875
diff changeset
1069 report_java_out_of_memory("Requested array size exceeds VM limit");
5935
a735aec54ea4 7123170: JCK vm/jvmti/ResourceExhausted/resexh001/resexh00101/ tests fails since 7u4 b02
sspitsyn
parents: 4739
diff changeset
1070 JvmtiExport::post_array_size_exhausted();
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1071 THROW_OOP_0(Universe::out_of_memory_error_array_size());
a61af66fc99e Initial load
duke
parents:
diff changeset
1072 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1073 int size = objArrayOopDesc::object_size(length);
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1074 Klass* ak = array_klass(n, CHECK_NULL);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1075 KlassHandle h_ak (THREAD, ak);
a61af66fc99e Initial load
duke
parents:
diff changeset
1076 objArrayOop o =
a61af66fc99e Initial load
duke
parents:
diff changeset
1077 (objArrayOop)CollectedHeap::array_allocate(h_ak, size, length, CHECK_NULL);
a61af66fc99e Initial load
duke
parents:
diff changeset
1078 return o;
a61af66fc99e Initial load
duke
parents:
diff changeset
1079 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1080
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1081 instanceOop InstanceKlass::register_finalizer(instanceOop i, TRAPS) {
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1082 if (TraceFinalizerRegistration) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1083 tty->print("Registered ");
a61af66fc99e Initial load
duke
parents:
diff changeset
1084 i->print_value_on(tty);
a61af66fc99e Initial load
duke
parents:
diff changeset
1085 tty->print_cr(" (" INTPTR_FORMAT ") as finalizable", (address)i);
a61af66fc99e Initial load
duke
parents:
diff changeset
1086 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1087 instanceHandle h_i(THREAD, i);
a61af66fc99e Initial load
duke
parents:
diff changeset
1088 // Pass the handle as argument, JavaCalls::call expects oop as jobjects
a61af66fc99e Initial load
duke
parents:
diff changeset
1089 JavaValue result(T_VOID);
a61af66fc99e Initial load
duke
parents:
diff changeset
1090 JavaCallArguments args(h_i);
a61af66fc99e Initial load
duke
parents:
diff changeset
1091 methodHandle mh (THREAD, Universe::finalizer_register_method());
a61af66fc99e Initial load
duke
parents:
diff changeset
1092 JavaCalls::call(&result, mh, &args, CHECK_NULL);
a61af66fc99e Initial load
duke
parents:
diff changeset
1093 return h_i();
a61af66fc99e Initial load
duke
parents:
diff changeset
1094 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1095
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1096 instanceOop InstanceKlass::allocate_instance(TRAPS) {
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1097 bool has_finalizer_flag = has_finalizer(); // Query before possible GC
a61af66fc99e Initial load
duke
parents:
diff changeset
1098 int size = size_helper(); // Query before forming handle.
a61af66fc99e Initial load
duke
parents:
diff changeset
1099
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1100 KlassHandle h_k(THREAD, this);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1101
a61af66fc99e Initial load
duke
parents:
diff changeset
1102 instanceOop i;
a61af66fc99e Initial load
duke
parents:
diff changeset
1103
a61af66fc99e Initial load
duke
parents:
diff changeset
1104 i = (instanceOop)CollectedHeap::obj_allocate(h_k, size, CHECK_NULL);
a61af66fc99e Initial load
duke
parents:
diff changeset
1105 if (has_finalizer_flag && !RegisterFinalizersAtInit) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1106 i = register_finalizer(i, CHECK_NULL);
a61af66fc99e Initial load
duke
parents:
diff changeset
1107 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1108 return i;
a61af66fc99e Initial load
duke
parents:
diff changeset
1109 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1110
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1111 void InstanceKlass::check_valid_for_instantiation(bool throwError, TRAPS) {
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1112 if (is_interface() || is_abstract()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1113 ResourceMark rm(THREAD);
a61af66fc99e Initial load
duke
parents:
diff changeset
1114 THROW_MSG(throwError ? vmSymbols::java_lang_InstantiationError()
a61af66fc99e Initial load
duke
parents:
diff changeset
1115 : vmSymbols::java_lang_InstantiationException(), external_name());
a61af66fc99e Initial load
duke
parents:
diff changeset
1116 }
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1117 if (this == SystemDictionary::Class_klass()) {
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1118 ResourceMark rm(THREAD);
a61af66fc99e Initial load
duke
parents:
diff changeset
1119 THROW_MSG(throwError ? vmSymbols::java_lang_IllegalAccessError()
a61af66fc99e Initial load
duke
parents:
diff changeset
1120 : vmSymbols::java_lang_IllegalAccessException(), external_name());
a61af66fc99e Initial load
duke
parents:
diff changeset
1121 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1122 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1123
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1124 Klass* InstanceKlass::array_klass_impl(bool or_null, int n, TRAPS) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1125 instanceKlassHandle this_oop(THREAD, this);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1126 return array_klass_impl(this_oop, or_null, n, THREAD);
a61af66fc99e Initial load
duke
parents:
diff changeset
1127 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1128
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1129 Klass* InstanceKlass::array_klass_impl(instanceKlassHandle this_oop, bool or_null, int n, TRAPS) {
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1130 if (this_oop->array_klasses() == NULL) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1131 if (or_null) return NULL;
a61af66fc99e Initial load
duke
parents:
diff changeset
1132
a61af66fc99e Initial load
duke
parents:
diff changeset
1133 ResourceMark rm;
a61af66fc99e Initial load
duke
parents:
diff changeset
1134 JavaThread *jt = (JavaThread *)THREAD;
a61af66fc99e Initial load
duke
parents:
diff changeset
1135 {
a61af66fc99e Initial load
duke
parents:
diff changeset
1136 // Atomic creation of array_klasses
a61af66fc99e Initial load
duke
parents:
diff changeset
1137 MutexLocker mc(Compile_lock, THREAD); // for vtables
a61af66fc99e Initial load
duke
parents:
diff changeset
1138 MutexLocker ma(MultiArray_lock, THREAD);
a61af66fc99e Initial load
duke
parents:
diff changeset
1139
a61af66fc99e Initial load
duke
parents:
diff changeset
1140 // Check if update has already taken place
a61af66fc99e Initial load
duke
parents:
diff changeset
1141 if (this_oop->array_klasses() == NULL) {
6831
d8ce2825b193 8000213: NPG: Should have renamed arrayKlass and typeArrayKlass
coleenp
parents: 6735
diff changeset
1142 Klass* k = ObjArrayKlass::allocate_objArray_klass(this_oop->class_loader_data(), 1, this_oop, CHECK_NULL);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1143 this_oop->set_array_klasses(k);
a61af66fc99e Initial load
duke
parents:
diff changeset
1144 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1145 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1146 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1147 // _this will always be set at this point
6831
d8ce2825b193 8000213: NPG: Should have renamed arrayKlass and typeArrayKlass
coleenp
parents: 6735
diff changeset
1148 ObjArrayKlass* oak = (ObjArrayKlass*)this_oop->array_klasses();
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1149 if (or_null) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1150 return oak->array_klass_or_null(n);
a61af66fc99e Initial load
duke
parents:
diff changeset
1151 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1152 return oak->array_klass(n, CHECK_NULL);
a61af66fc99e Initial load
duke
parents:
diff changeset
1153 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1154
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1155 Klass* InstanceKlass::array_klass_impl(bool or_null, TRAPS) {
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1156 return array_klass_impl(or_null, 1, THREAD);
a61af66fc99e Initial load
duke
parents:
diff changeset
1157 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1158
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1159 void InstanceKlass::call_class_initializer(TRAPS) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1160 instanceKlassHandle ik (THREAD, this);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1161 call_class_initializer_impl(ik, THREAD);
a61af66fc99e Initial load
duke
parents:
diff changeset
1162 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1163
a61af66fc99e Initial load
duke
parents:
diff changeset
1164 static int call_class_initializer_impl_counter = 0; // for debugging
a61af66fc99e Initial load
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parents:
diff changeset
1165
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1166 Method* InstanceKlass::class_initializer() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1167 Method* clinit = find_method(
2334
dbad0519a1c4 6845426: non-static <clinit> method with no args is called during the class initialization process
kamg
parents: 2227
diff changeset
1168 vmSymbols::class_initializer_name(), vmSymbols::void_method_signature());
dbad0519a1c4 6845426: non-static <clinit> method with no args is called during the class initialization process
kamg
parents: 2227
diff changeset
1169 if (clinit != NULL && clinit->has_valid_initializer_flags()) {
dbad0519a1c4 6845426: non-static <clinit> method with no args is called during the class initialization process
kamg
parents: 2227
diff changeset
1170 return clinit;
dbad0519a1c4 6845426: non-static <clinit> method with no args is called during the class initialization process
kamg
parents: 2227
diff changeset
1171 }
dbad0519a1c4 6845426: non-static <clinit> method with no args is called during the class initialization process
kamg
parents: 2227
diff changeset
1172 return NULL;
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1173 }
a61af66fc99e Initial load
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parents:
diff changeset
1174
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1175 void InstanceKlass::call_class_initializer_impl(instanceKlassHandle this_oop, TRAPS) {
6972
bd7a7ce2e264 6830717: replay of compilations would help with debugging
minqi
parents: 6934
diff changeset
1176 if (ReplayCompiles &&
bd7a7ce2e264 6830717: replay of compilations would help with debugging
minqi
parents: 6934
diff changeset
1177 (ReplaySuppressInitializers == 1 ||
bd7a7ce2e264 6830717: replay of compilations would help with debugging
minqi
parents: 6934
diff changeset
1178 ReplaySuppressInitializers >= 2 && this_oop->class_loader() != NULL)) {
bd7a7ce2e264 6830717: replay of compilations would help with debugging
minqi
parents: 6934
diff changeset
1179 // Hide the existence of the initializer for the purpose of replaying the compile
bd7a7ce2e264 6830717: replay of compilations would help with debugging
minqi
parents: 6934
diff changeset
1180 return;
bd7a7ce2e264 6830717: replay of compilations would help with debugging
minqi
parents: 6934
diff changeset
1181 }
bd7a7ce2e264 6830717: replay of compilations would help with debugging
minqi
parents: 6934
diff changeset
1182
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1183 methodHandle h_method(THREAD, this_oop->class_initializer());
a61af66fc99e Initial load
duke
parents:
diff changeset
1184 assert(!this_oop->is_initialized(), "we cannot initialize twice");
a61af66fc99e Initial load
duke
parents:
diff changeset
1185 if (TraceClassInitialization) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1186 tty->print("%d Initializing ", call_class_initializer_impl_counter++);
a61af66fc99e Initial load
duke
parents:
diff changeset
1187 this_oop->name()->print_value();
a61af66fc99e Initial load
duke
parents:
diff changeset
1188 tty->print_cr("%s (" INTPTR_FORMAT ")", h_method() == NULL ? "(no method)" : "", (address)this_oop());
a61af66fc99e Initial load
duke
parents:
diff changeset
1189 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1190 if (h_method() != NULL) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1191 JavaCallArguments args; // No arguments
a61af66fc99e Initial load
duke
parents:
diff changeset
1192 JavaValue result(T_VOID);
a61af66fc99e Initial load
duke
parents:
diff changeset
1193 JavaCalls::call(&result, h_method, &args, CHECK); // Static call (no args)
a61af66fc99e Initial load
duke
parents:
diff changeset
1194 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1195 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1196
a61af66fc99e Initial load
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parents:
diff changeset
1197
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1198 void InstanceKlass::mask_for(methodHandle method, int bci,
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1199 InterpreterOopMap* entry_for) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1200 // Dirty read, then double-check under a lock.
a61af66fc99e Initial load
duke
parents:
diff changeset
1201 if (_oop_map_cache == NULL) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1202 // Otherwise, allocate a new one.
a61af66fc99e Initial load
duke
parents:
diff changeset
1203 MutexLocker x(OopMapCacheAlloc_lock);
a61af66fc99e Initial load
duke
parents:
diff changeset
1204 // First time use. Allocate a cache in C heap
a61af66fc99e Initial load
duke
parents:
diff changeset
1205 if (_oop_map_cache == NULL) {
14443
3205e78d8193 8029396: PPC64 (part 212): Several memory ordering fixes in C-code.
goetz
parents: 13401
diff changeset
1206 // Release stores from OopMapCache constructor before assignment
3205e78d8193 8029396: PPC64 (part 212): Several memory ordering fixes in C-code.
goetz
parents: 13401
diff changeset
1207 // to _oop_map_cache. C++ compilers on ppc do not emit the
3205e78d8193 8029396: PPC64 (part 212): Several memory ordering fixes in C-code.
goetz
parents: 13401
diff changeset
1208 // required memory barrier only because of the volatile
3205e78d8193 8029396: PPC64 (part 212): Several memory ordering fixes in C-code.
goetz
parents: 13401
diff changeset
1209 // qualifier of _oop_map_cache.
3205e78d8193 8029396: PPC64 (part 212): Several memory ordering fixes in C-code.
goetz
parents: 13401
diff changeset
1210 OrderAccess::release_store_ptr(&_oop_map_cache, new OopMapCache());
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1211 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1212 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1213 // _oop_map_cache is constant after init; lookup below does is own locking.
a61af66fc99e Initial load
duke
parents:
diff changeset
1214 _oop_map_cache->lookup(method, bci, entry_for);
a61af66fc99e Initial load
duke
parents:
diff changeset
1215 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1216
a61af66fc99e Initial load
duke
parents:
diff changeset
1217
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1218 bool InstanceKlass::find_local_field(Symbol* name, Symbol* sig, fieldDescriptor* fd) const {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1219 for (JavaFieldStream fs(this); !fs.done(); fs.next()) {
3938
e6b1331a51d2 7086585: make Java field injection more flexible
never
parents: 3852
diff changeset
1220 Symbol* f_name = fs.name();
e6b1331a51d2 7086585: make Java field injection more flexible
never
parents: 3852
diff changeset
1221 Symbol* f_sig = fs.signature();
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1222 if (f_name == name && f_sig == sig) {
12264
b2e698d2276c 8014013: CallInfo structure no longer accurately reports the result of a LinkResolver operation
drchase
parents: 12067
diff changeset
1223 fd->reinitialize(const_cast<InstanceKlass*>(this), fs.index());
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1224 return true;
a61af66fc99e Initial load
duke
parents:
diff changeset
1225 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1226 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1227 return false;
a61af66fc99e Initial load
duke
parents:
diff changeset
1228 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1229
a61af66fc99e Initial load
duke
parents:
diff changeset
1230
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1231 Klass* InstanceKlass::find_interface_field(Symbol* name, Symbol* sig, fieldDescriptor* fd) const {
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1232 const int n = local_interfaces()->length();
a61af66fc99e Initial load
duke
parents:
diff changeset
1233 for (int i = 0; i < n; i++) {
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1234 Klass* intf1 = local_interfaces()->at(i);
6983
070d523b96a7 8001471: Klass::cast() does nothing
hseigel
parents: 6934
diff changeset
1235 assert(intf1->is_interface(), "just checking type");
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1236 // search for field in current interface
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1237 if (InstanceKlass::cast(intf1)->find_local_field(name, sig, fd)) {
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1238 assert(fd->is_static(), "interface field must be static");
a61af66fc99e Initial load
duke
parents:
diff changeset
1239 return intf1;
a61af66fc99e Initial load
duke
parents:
diff changeset
1240 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1241 // search for field in direct superinterfaces
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1242 Klass* intf2 = InstanceKlass::cast(intf1)->find_interface_field(name, sig, fd);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1243 if (intf2 != NULL) return intf2;
a61af66fc99e Initial load
duke
parents:
diff changeset
1244 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1245 // otherwise field lookup fails
a61af66fc99e Initial load
duke
parents:
diff changeset
1246 return NULL;
a61af66fc99e Initial load
duke
parents:
diff changeset
1247 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1248
a61af66fc99e Initial load
duke
parents:
diff changeset
1249
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1250 Klass* InstanceKlass::find_field(Symbol* name, Symbol* sig, fieldDescriptor* fd) const {
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1251 // search order according to newest JVM spec (5.4.3.2, p.167).
a61af66fc99e Initial load
duke
parents:
diff changeset
1252 // 1) search for field in current klass
a61af66fc99e Initial load
duke
parents:
diff changeset
1253 if (find_local_field(name, sig, fd)) {
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1254 return const_cast<InstanceKlass*>(this);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1255 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1256 // 2) search for field recursively in direct superinterfaces
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1257 { Klass* intf = find_interface_field(name, sig, fd);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1258 if (intf != NULL) return intf;
a61af66fc99e Initial load
duke
parents:
diff changeset
1259 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1260 // 3) apply field lookup recursively if superclass exists
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1261 { Klass* supr = super();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1262 if (supr != NULL) return InstanceKlass::cast(supr)->find_field(name, sig, fd);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1263 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1264 // 4) otherwise field lookup fails
a61af66fc99e Initial load
duke
parents:
diff changeset
1265 return NULL;
a61af66fc99e Initial load
duke
parents:
diff changeset
1266 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1267
a61af66fc99e Initial load
duke
parents:
diff changeset
1268
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1269 Klass* InstanceKlass::find_field(Symbol* name, Symbol* sig, bool is_static, fieldDescriptor* fd) const {
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1270 // search order according to newest JVM spec (5.4.3.2, p.167).
a61af66fc99e Initial load
duke
parents:
diff changeset
1271 // 1) search for field in current klass
a61af66fc99e Initial load
duke
parents:
diff changeset
1272 if (find_local_field(name, sig, fd)) {
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1273 if (fd->is_static() == is_static) return const_cast<InstanceKlass*>(this);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1274 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1275 // 2) search for field recursively in direct superinterfaces
a61af66fc99e Initial load
duke
parents:
diff changeset
1276 if (is_static) {
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1277 Klass* intf = find_interface_field(name, sig, fd);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1278 if (intf != NULL) return intf;
a61af66fc99e Initial load
duke
parents:
diff changeset
1279 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1280 // 3) apply field lookup recursively if superclass exists
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1281 { Klass* supr = super();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1282 if (supr != NULL) return InstanceKlass::cast(supr)->find_field(name, sig, is_static, fd);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1283 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1284 // 4) otherwise field lookup fails
a61af66fc99e Initial load
duke
parents:
diff changeset
1285 return NULL;
a61af66fc99e Initial load
duke
parents:
diff changeset
1286 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1287
a61af66fc99e Initial load
duke
parents:
diff changeset
1288
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1289 bool InstanceKlass::find_local_field_from_offset(int offset, bool is_static, fieldDescriptor* fd) const {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1290 for (JavaFieldStream fs(this); !fs.done(); fs.next()) {
3938
e6b1331a51d2 7086585: make Java field injection more flexible
never
parents: 3852
diff changeset
1291 if (fs.offset() == offset) {
12264
b2e698d2276c 8014013: CallInfo structure no longer accurately reports the result of a LinkResolver operation
drchase
parents: 12067
diff changeset
1292 fd->reinitialize(const_cast<InstanceKlass*>(this), fs.index());
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1293 if (fd->is_static() == is_static) return true;
a61af66fc99e Initial load
duke
parents:
diff changeset
1294 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1295 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1296 return false;
a61af66fc99e Initial load
duke
parents:
diff changeset
1297 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1298
a61af66fc99e Initial load
duke
parents:
diff changeset
1299
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1300 bool InstanceKlass::find_field_from_offset(int offset, bool is_static, fieldDescriptor* fd) const {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1301 Klass* klass = const_cast<InstanceKlass*>(this);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1302 while (klass != NULL) {
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1303 if (InstanceKlass::cast(klass)->find_local_field_from_offset(offset, is_static, fd)) {
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1304 return true;
a61af66fc99e Initial load
duke
parents:
diff changeset
1305 }
6983
070d523b96a7 8001471: Klass::cast() does nothing
hseigel
parents: 6934
diff changeset
1306 klass = klass->super();
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1307 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1308 return false;
a61af66fc99e Initial load
duke
parents:
diff changeset
1309 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1310
a61af66fc99e Initial load
duke
parents:
diff changeset
1311
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1312 void InstanceKlass::methods_do(void f(Method* method)) {
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1313 int len = methods()->length();
a61af66fc99e Initial load
duke
parents:
diff changeset
1314 for (int index = 0; index < len; index++) {
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1315 Method* m = methods()->at(index);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1316 assert(m->is_method(), "must be method");
a61af66fc99e Initial load
duke
parents:
diff changeset
1317 f(m);
a61af66fc99e Initial load
duke
parents:
diff changeset
1318 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1319 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1320
2376
c7f3d0b4570f 7017732: move static fields into Class to prepare for perm gen removal
never
parents: 2357
diff changeset
1321
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1322 void InstanceKlass::do_local_static_fields(FieldClosure* cl) {
3938
e6b1331a51d2 7086585: make Java field injection more flexible
never
parents: 3852
diff changeset
1323 for (JavaFieldStream fs(this); !fs.done(); fs.next()) {
e6b1331a51d2 7086585: make Java field injection more flexible
never
parents: 3852
diff changeset
1324 if (fs.access_flags().is_static()) {
12264
b2e698d2276c 8014013: CallInfo structure no longer accurately reports the result of a LinkResolver operation
drchase
parents: 12067
diff changeset
1325 fieldDescriptor& fd = fs.field_descriptor();
3938
e6b1331a51d2 7086585: make Java field injection more flexible
never
parents: 3852
diff changeset
1326 cl->do_field(&fd);
e6b1331a51d2 7086585: make Java field injection more flexible
never
parents: 3852
diff changeset
1327 }
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1328 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1329 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1330
a61af66fc99e Initial load
duke
parents:
diff changeset
1331
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1332 void InstanceKlass::do_local_static_fields(void f(fieldDescriptor*, TRAPS), TRAPS) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1333 instanceKlassHandle h_this(THREAD, this);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1334 do_local_static_fields_impl(h_this, f, CHECK);
a61af66fc99e Initial load
duke
parents:
diff changeset
1335 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1336
a61af66fc99e Initial load
duke
parents:
diff changeset
1337
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1338 void InstanceKlass::do_local_static_fields_impl(instanceKlassHandle this_oop, void f(fieldDescriptor* fd, TRAPS), TRAPS) {
3938
e6b1331a51d2 7086585: make Java field injection more flexible
never
parents: 3852
diff changeset
1339 for (JavaFieldStream fs(this_oop()); !fs.done(); fs.next()) {
e6b1331a51d2 7086585: make Java field injection more flexible
never
parents: 3852
diff changeset
1340 if (fs.access_flags().is_static()) {
12264
b2e698d2276c 8014013: CallInfo structure no longer accurately reports the result of a LinkResolver operation
drchase
parents: 12067
diff changeset
1341 fieldDescriptor& fd = fs.field_descriptor();
3938
e6b1331a51d2 7086585: make Java field injection more flexible
never
parents: 3852
diff changeset
1342 f(&fd, CHECK);
e6b1331a51d2 7086585: make Java field injection more flexible
never
parents: 3852
diff changeset
1343 }
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1344 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1345 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1346
a61af66fc99e Initial load
duke
parents:
diff changeset
1347
44
52fed2ec0afb 6667620: (Escape Analysis) fix deoptimization for scalar replaced objects
kvn
parents: 0
diff changeset
1348 static int compare_fields_by_offset(int* a, int* b) {
52fed2ec0afb 6667620: (Escape Analysis) fix deoptimization for scalar replaced objects
kvn
parents: 0
diff changeset
1349 return a[0] - b[0];
52fed2ec0afb 6667620: (Escape Analysis) fix deoptimization for scalar replaced objects
kvn
parents: 0
diff changeset
1350 }
52fed2ec0afb 6667620: (Escape Analysis) fix deoptimization for scalar replaced objects
kvn
parents: 0
diff changeset
1351
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1352 void InstanceKlass::do_nonstatic_fields(FieldClosure* cl) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1353 InstanceKlass* super = superklass();
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1354 if (super != NULL) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1355 super->do_nonstatic_fields(cl);
a61af66fc99e Initial load
duke
parents:
diff changeset
1356 }
44
52fed2ec0afb 6667620: (Escape Analysis) fix deoptimization for scalar replaced objects
kvn
parents: 0
diff changeset
1357 fieldDescriptor fd;
3938
e6b1331a51d2 7086585: make Java field injection more flexible
never
parents: 3852
diff changeset
1358 int length = java_fields_count();
44
52fed2ec0afb 6667620: (Escape Analysis) fix deoptimization for scalar replaced objects
kvn
parents: 0
diff changeset
1359 // In DebugInfo nonstatic fields are sorted by offset.
6197
d2a62e0f25eb 6995781: Native Memory Tracking (Phase 1)
zgu
parents: 6038
diff changeset
1360 int* fields_sorted = NEW_C_HEAP_ARRAY(int, 2*(length+1), mtClass);
44
52fed2ec0afb 6667620: (Escape Analysis) fix deoptimization for scalar replaced objects
kvn
parents: 0
diff changeset
1361 int j = 0;
3938
e6b1331a51d2 7086585: make Java field injection more flexible
never
parents: 3852
diff changeset
1362 for (int i = 0; i < length; i += 1) {
12264
b2e698d2276c 8014013: CallInfo structure no longer accurately reports the result of a LinkResolver operation
drchase
parents: 12067
diff changeset
1363 fd.reinitialize(this, i);
44
52fed2ec0afb 6667620: (Escape Analysis) fix deoptimization for scalar replaced objects
kvn
parents: 0
diff changeset
1364 if (!fd.is_static()) {
52fed2ec0afb 6667620: (Escape Analysis) fix deoptimization for scalar replaced objects
kvn
parents: 0
diff changeset
1365 fields_sorted[j + 0] = fd.offset();
52fed2ec0afb 6667620: (Escape Analysis) fix deoptimization for scalar replaced objects
kvn
parents: 0
diff changeset
1366 fields_sorted[j + 1] = i;
52fed2ec0afb 6667620: (Escape Analysis) fix deoptimization for scalar replaced objects
kvn
parents: 0
diff changeset
1367 j += 2;
52fed2ec0afb 6667620: (Escape Analysis) fix deoptimization for scalar replaced objects
kvn
parents: 0
diff changeset
1368 }
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1369 }
44
52fed2ec0afb 6667620: (Escape Analysis) fix deoptimization for scalar replaced objects
kvn
parents: 0
diff changeset
1370 if (j > 0) {
52fed2ec0afb 6667620: (Escape Analysis) fix deoptimization for scalar replaced objects
kvn
parents: 0
diff changeset
1371 length = j;
52fed2ec0afb 6667620: (Escape Analysis) fix deoptimization for scalar replaced objects
kvn
parents: 0
diff changeset
1372 // _sort_Fn is defined in growableArray.hpp.
52fed2ec0afb 6667620: (Escape Analysis) fix deoptimization for scalar replaced objects
kvn
parents: 0
diff changeset
1373 qsort(fields_sorted, length/2, 2*sizeof(int), (_sort_Fn)compare_fields_by_offset);
52fed2ec0afb 6667620: (Escape Analysis) fix deoptimization for scalar replaced objects
kvn
parents: 0
diff changeset
1374 for (int i = 0; i < length; i += 2) {
12264
b2e698d2276c 8014013: CallInfo structure no longer accurately reports the result of a LinkResolver operation
drchase
parents: 12067
diff changeset
1375 fd.reinitialize(this, fields_sorted[i + 1]);
44
52fed2ec0afb 6667620: (Escape Analysis) fix deoptimization for scalar replaced objects
kvn
parents: 0
diff changeset
1376 assert(!fd.is_static() && fd.offset() == fields_sorted[i], "only nonstatic fields");
52fed2ec0afb 6667620: (Escape Analysis) fix deoptimization for scalar replaced objects
kvn
parents: 0
diff changeset
1377 cl->do_field(&fd);
52fed2ec0afb 6667620: (Escape Analysis) fix deoptimization for scalar replaced objects
kvn
parents: 0
diff changeset
1378 }
52fed2ec0afb 6667620: (Escape Analysis) fix deoptimization for scalar replaced objects
kvn
parents: 0
diff changeset
1379 }
6197
d2a62e0f25eb 6995781: Native Memory Tracking (Phase 1)
zgu
parents: 6038
diff changeset
1380 FREE_C_HEAP_ARRAY(int, fields_sorted, mtClass);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1381 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1382
a61af66fc99e Initial load
duke
parents:
diff changeset
1383
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1384 void InstanceKlass::array_klasses_do(void f(Klass* k, TRAPS), TRAPS) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1385 if (array_klasses() != NULL)
6831
d8ce2825b193 8000213: NPG: Should have renamed arrayKlass and typeArrayKlass
coleenp
parents: 6735
diff changeset
1386 ArrayKlass::cast(array_klasses())->array_klasses_do(f, THREAD);
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1387 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1388
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1389 void InstanceKlass::array_klasses_do(void f(Klass* k)) {
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1390 if (array_klasses() != NULL)
6831
d8ce2825b193 8000213: NPG: Should have renamed arrayKlass and typeArrayKlass
coleenp
parents: 6735
diff changeset
1391 ArrayKlass::cast(array_klasses())->array_klasses_do(f);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1392 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1393
a61af66fc99e Initial load
duke
parents:
diff changeset
1394 #ifdef ASSERT
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1395 static int linear_search(Array<Method*>* methods, Symbol* name, Symbol* signature) {
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1396 int len = methods->length();
a61af66fc99e Initial load
duke
parents:
diff changeset
1397 for (int index = 0; index < len; index++) {
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1398 Method* m = methods->at(index);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1399 assert(m->is_method(), "must be method");
a61af66fc99e Initial load
duke
parents:
diff changeset
1400 if (m->signature() == signature && m->name() == name) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1401 return index;
a61af66fc99e Initial load
duke
parents:
diff changeset
1402 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1403 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1404 return -1;
a61af66fc99e Initial load
duke
parents:
diff changeset
1405 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1406 #endif
a61af66fc99e Initial load
duke
parents:
diff changeset
1407
6934
4735d2c84362 7200776: Implement default methods in interfaces
kamg
parents: 6831
diff changeset
1408 static int binary_search(Array<Method*>* methods, Symbol* name) {
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1409 int len = methods->length();
a61af66fc99e Initial load
duke
parents:
diff changeset
1410 // methods are sorted, so do binary search
a61af66fc99e Initial load
duke
parents:
diff changeset
1411 int l = 0;
a61af66fc99e Initial load
duke
parents:
diff changeset
1412 int h = len - 1;
a61af66fc99e Initial load
duke
parents:
diff changeset
1413 while (l <= h) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1414 int mid = (l + h) >> 1;
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1415 Method* m = methods->at(mid);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1416 assert(m->is_method(), "must be method");
a61af66fc99e Initial load
duke
parents:
diff changeset
1417 int res = m->name()->fast_compare(name);
a61af66fc99e Initial load
duke
parents:
diff changeset
1418 if (res == 0) {
6934
4735d2c84362 7200776: Implement default methods in interfaces
kamg
parents: 6831
diff changeset
1419 return mid;
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1420 } else if (res < 0) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1421 l = mid + 1;
a61af66fc99e Initial load
duke
parents:
diff changeset
1422 } else {
a61af66fc99e Initial load
duke
parents:
diff changeset
1423 h = mid - 1;
a61af66fc99e Initial load
duke
parents:
diff changeset
1424 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1425 }
6934
4735d2c84362 7200776: Implement default methods in interfaces
kamg
parents: 6831
diff changeset
1426 return -1;
4735d2c84362 7200776: Implement default methods in interfaces
kamg
parents: 6831
diff changeset
1427 }
4735d2c84362 7200776: Implement default methods in interfaces
kamg
parents: 6831
diff changeset
1428
12823
ac9cb1d5a202 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 12811
diff changeset
1429 // find_method looks up the name/signature in the local methods array
6934
4735d2c84362 7200776: Implement default methods in interfaces
kamg
parents: 6831
diff changeset
1430 Method* InstanceKlass::find_method(Symbol* name, Symbol* signature) const {
4735d2c84362 7200776: Implement default methods in interfaces
kamg
parents: 6831
diff changeset
1431 return InstanceKlass::find_method(methods(), name, signature);
4735d2c84362 7200776: Implement default methods in interfaces
kamg
parents: 6831
diff changeset
1432 }
4735d2c84362 7200776: Implement default methods in interfaces
kamg
parents: 6831
diff changeset
1433
13414
379f11bc04fc 8028438: static superclass method masks default methods
acorn
parents: 13401
diff changeset
1434 // find_instance_method looks up the name/signature in the local methods array
379f11bc04fc 8028438: static superclass method masks default methods
acorn
parents: 13401
diff changeset
1435 // and skips over static methods
379f11bc04fc 8028438: static superclass method masks default methods
acorn
parents: 13401
diff changeset
1436 Method* InstanceKlass::find_instance_method(
379f11bc04fc 8028438: static superclass method masks default methods
acorn
parents: 13401
diff changeset
1437 Array<Method*>* methods, Symbol* name, Symbol* signature) {
379f11bc04fc 8028438: static superclass method masks default methods
acorn
parents: 13401
diff changeset
1438 Method* meth = InstanceKlass::find_method(methods, name, signature);
379f11bc04fc 8028438: static superclass method masks default methods
acorn
parents: 13401
diff changeset
1439 if (meth != NULL && meth->is_static()) {
379f11bc04fc 8028438: static superclass method masks default methods
acorn
parents: 13401
diff changeset
1440 meth = NULL;
379f11bc04fc 8028438: static superclass method masks default methods
acorn
parents: 13401
diff changeset
1441 }
379f11bc04fc 8028438: static superclass method masks default methods
acorn
parents: 13401
diff changeset
1442 return meth;
379f11bc04fc 8028438: static superclass method masks default methods
acorn
parents: 13401
diff changeset
1443 }
379f11bc04fc 8028438: static superclass method masks default methods
acorn
parents: 13401
diff changeset
1444
12823
ac9cb1d5a202 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 12811
diff changeset
1445 // find_method looks up the name/signature in the local methods array
6934
4735d2c84362 7200776: Implement default methods in interfaces
kamg
parents: 6831
diff changeset
1446 Method* InstanceKlass::find_method(
4735d2c84362 7200776: Implement default methods in interfaces
kamg
parents: 6831
diff changeset
1447 Array<Method*>* methods, Symbol* name, Symbol* signature) {
12823
ac9cb1d5a202 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 12811
diff changeset
1448 int hit = find_method_index(methods, name, signature);
ac9cb1d5a202 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 12811
diff changeset
1449 return hit >= 0 ? methods->at(hit): NULL;
ac9cb1d5a202 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 12811
diff changeset
1450 }
ac9cb1d5a202 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 12811
diff changeset
1451
ac9cb1d5a202 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 12811
diff changeset
1452 // Used directly for default_methods to find the index into the
ac9cb1d5a202 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 12811
diff changeset
1453 // default_vtable_indices, and indirectly by find_method
ac9cb1d5a202 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 12811
diff changeset
1454 // find_method_index looks in the local methods array to return the index
ac9cb1d5a202 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 12811
diff changeset
1455 // of the matching name/signature
ac9cb1d5a202 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 12811
diff changeset
1456 int InstanceKlass::find_method_index(
ac9cb1d5a202 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 12811
diff changeset
1457 Array<Method*>* methods, Symbol* name, Symbol* signature) {
6934
4735d2c84362 7200776: Implement default methods in interfaces
kamg
parents: 6831
diff changeset
1458 int hit = binary_search(methods, name);
4735d2c84362 7200776: Implement default methods in interfaces
kamg
parents: 6831
diff changeset
1459 if (hit != -1) {
4735d2c84362 7200776: Implement default methods in interfaces
kamg
parents: 6831
diff changeset
1460 Method* m = methods->at(hit);
4735d2c84362 7200776: Implement default methods in interfaces
kamg
parents: 6831
diff changeset
1461 // Do linear search to find matching signature. First, quick check
4735d2c84362 7200776: Implement default methods in interfaces
kamg
parents: 6831
diff changeset
1462 // for common case
12823
ac9cb1d5a202 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 12811
diff changeset
1463 if (m->signature() == signature) return hit;
6934
4735d2c84362 7200776: Implement default methods in interfaces
kamg
parents: 6831
diff changeset
1464 // search downwards through overloaded methods
4735d2c84362 7200776: Implement default methods in interfaces
kamg
parents: 6831
diff changeset
1465 int i;
4735d2c84362 7200776: Implement default methods in interfaces
kamg
parents: 6831
diff changeset
1466 for (i = hit - 1; i >= 0; --i) {
4735d2c84362 7200776: Implement default methods in interfaces
kamg
parents: 6831
diff changeset
1467 Method* m = methods->at(i);
4735d2c84362 7200776: Implement default methods in interfaces
kamg
parents: 6831
diff changeset
1468 assert(m->is_method(), "must be method");
4735d2c84362 7200776: Implement default methods in interfaces
kamg
parents: 6831
diff changeset
1469 if (m->name() != name) break;
12823
ac9cb1d5a202 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 12811
diff changeset
1470 if (m->signature() == signature) return i;
6934
4735d2c84362 7200776: Implement default methods in interfaces
kamg
parents: 6831
diff changeset
1471 }
4735d2c84362 7200776: Implement default methods in interfaces
kamg
parents: 6831
diff changeset
1472 // search upwards
4735d2c84362 7200776: Implement default methods in interfaces
kamg
parents: 6831
diff changeset
1473 for (i = hit + 1; i < methods->length(); ++i) {
4735d2c84362 7200776: Implement default methods in interfaces
kamg
parents: 6831
diff changeset
1474 Method* m = methods->at(i);
4735d2c84362 7200776: Implement default methods in interfaces
kamg
parents: 6831
diff changeset
1475 assert(m->is_method(), "must be method");
4735d2c84362 7200776: Implement default methods in interfaces
kamg
parents: 6831
diff changeset
1476 if (m->name() != name) break;
12823
ac9cb1d5a202 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 12811
diff changeset
1477 if (m->signature() == signature) return i;
6934
4735d2c84362 7200776: Implement default methods in interfaces
kamg
parents: 6831
diff changeset
1478 }
4735d2c84362 7200776: Implement default methods in interfaces
kamg
parents: 6831
diff changeset
1479 // not found
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1480 #ifdef ASSERT
6934
4735d2c84362 7200776: Implement default methods in interfaces
kamg
parents: 6831
diff changeset
1481 int index = linear_search(methods, name, signature);
4735d2c84362 7200776: Implement default methods in interfaces
kamg
parents: 6831
diff changeset
1482 assert(index == -1, err_msg("binary search should have found entry %d", index));
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1483 #endif
6934
4735d2c84362 7200776: Implement default methods in interfaces
kamg
parents: 6831
diff changeset
1484 }
12823
ac9cb1d5a202 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 12811
diff changeset
1485 return -1;
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1486 }
6934
4735d2c84362 7200776: Implement default methods in interfaces
kamg
parents: 6831
diff changeset
1487 int InstanceKlass::find_method_by_name(Symbol* name, int* end) {
4735d2c84362 7200776: Implement default methods in interfaces
kamg
parents: 6831
diff changeset
1488 return find_method_by_name(methods(), name, end);
4735d2c84362 7200776: Implement default methods in interfaces
kamg
parents: 6831
diff changeset
1489 }
4735d2c84362 7200776: Implement default methods in interfaces
kamg
parents: 6831
diff changeset
1490
4735d2c84362 7200776: Implement default methods in interfaces
kamg
parents: 6831
diff changeset
1491 int InstanceKlass::find_method_by_name(
4735d2c84362 7200776: Implement default methods in interfaces
kamg
parents: 6831
diff changeset
1492 Array<Method*>* methods, Symbol* name, int* end_ptr) {
4735d2c84362 7200776: Implement default methods in interfaces
kamg
parents: 6831
diff changeset
1493 assert(end_ptr != NULL, "just checking");
4735d2c84362 7200776: Implement default methods in interfaces
kamg
parents: 6831
diff changeset
1494 int start = binary_search(methods, name);
4735d2c84362 7200776: Implement default methods in interfaces
kamg
parents: 6831
diff changeset
1495 int end = start + 1;
4735d2c84362 7200776: Implement default methods in interfaces
kamg
parents: 6831
diff changeset
1496 if (start != -1) {
4735d2c84362 7200776: Implement default methods in interfaces
kamg
parents: 6831
diff changeset
1497 while (start - 1 >= 0 && (methods->at(start - 1))->name() == name) --start;
4735d2c84362 7200776: Implement default methods in interfaces
kamg
parents: 6831
diff changeset
1498 while (end < methods->length() && (methods->at(end))->name() == name) ++end;
4735d2c84362 7200776: Implement default methods in interfaces
kamg
parents: 6831
diff changeset
1499 *end_ptr = end;
4735d2c84362 7200776: Implement default methods in interfaces
kamg
parents: 6831
diff changeset
1500 return start;
4735d2c84362 7200776: Implement default methods in interfaces
kamg
parents: 6831
diff changeset
1501 }
4735d2c84362 7200776: Implement default methods in interfaces
kamg
parents: 6831
diff changeset
1502 return -1;
4735d2c84362 7200776: Implement default methods in interfaces
kamg
parents: 6831
diff changeset
1503 }
4735d2c84362 7200776: Implement default methods in interfaces
kamg
parents: 6831
diff changeset
1504
17464
5832cdaf89c6 8027804: JCK resolveMethod test fails expecting AbstractMethodError
hseigel
parents: 13438
diff changeset
1505 // uncached_lookup_method searches both the local class methods array and all
5832cdaf89c6 8027804: JCK resolveMethod test fails expecting AbstractMethodError
hseigel
parents: 13438
diff changeset
1506 // superclasses methods arrays, skipping any overpass methods in superclasses.
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1507 Method* InstanceKlass::uncached_lookup_method(Symbol* name, Symbol* signature) const {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1508 Klass* klass = const_cast<InstanceKlass*>(this);
17464
5832cdaf89c6 8027804: JCK resolveMethod test fails expecting AbstractMethodError
hseigel
parents: 13438
diff changeset
1509 bool dont_ignore_overpasses = true; // For the class being searched, find its overpasses.
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1510 while (klass != NULL) {
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1511 Method* method = InstanceKlass::cast(klass)->find_method(name, signature);
17464
5832cdaf89c6 8027804: JCK resolveMethod test fails expecting AbstractMethodError
hseigel
parents: 13438
diff changeset
1512 if ((method != NULL) && (dont_ignore_overpasses || !method->is_overpass())) {
5832cdaf89c6 8027804: JCK resolveMethod test fails expecting AbstractMethodError
hseigel
parents: 13438
diff changeset
1513 return method;
5832cdaf89c6 8027804: JCK resolveMethod test fails expecting AbstractMethodError
hseigel
parents: 13438
diff changeset
1514 }
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1515 klass = InstanceKlass::cast(klass)->super();
17464
5832cdaf89c6 8027804: JCK resolveMethod test fails expecting AbstractMethodError
hseigel
parents: 13438
diff changeset
1516 dont_ignore_overpasses = false; // Ignore overpass methods in all superclasses.
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1517 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1518 return NULL;
a61af66fc99e Initial load
duke
parents:
diff changeset
1519 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1520
12823
ac9cb1d5a202 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 12811
diff changeset
1521 // lookup a method in the default methods list then in all transitive interfaces
ac9cb1d5a202 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 12811
diff changeset
1522 // Do NOT return private or static methods
ac9cb1d5a202 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 12811
diff changeset
1523 Method* InstanceKlass::lookup_method_in_ordered_interfaces(Symbol* name,
ac9cb1d5a202 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 12811
diff changeset
1524 Symbol* signature) const {
12828
d25557d03ec0 8026185: nsk/jvmit/GetMethodDeclaringClass/declcls001 failed
acorn
parents: 12823
diff changeset
1525 Method* m = NULL;
12823
ac9cb1d5a202 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 12811
diff changeset
1526 if (default_methods() != NULL) {
ac9cb1d5a202 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 12811
diff changeset
1527 m = find_method(default_methods(), name, signature);
ac9cb1d5a202 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 12811
diff changeset
1528 }
ac9cb1d5a202 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 12811
diff changeset
1529 // Look up interfaces
ac9cb1d5a202 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 12811
diff changeset
1530 if (m == NULL) {
17464
5832cdaf89c6 8027804: JCK resolveMethod test fails expecting AbstractMethodError
hseigel
parents: 13438
diff changeset
1531 m = lookup_method_in_all_interfaces(name, signature, false);
12823
ac9cb1d5a202 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 12811
diff changeset
1532 }
ac9cb1d5a202 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 12811
diff changeset
1533 return m;
ac9cb1d5a202 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 12811
diff changeset
1534 }
ac9cb1d5a202 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 12811
diff changeset
1535
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1536 // lookup a method in all the interfaces that this class implements
12318
36b97be47bde 8011311: Private interface methods. Default conflicts:ICCE. no erased_super_default.
acorn
parents: 12316
diff changeset
1537 // Do NOT return private or static methods, new in JDK8 which are not externally visible
36b97be47bde 8011311: Private interface methods. Default conflicts:ICCE. no erased_super_default.
acorn
parents: 12316
diff changeset
1538 // They should only be found in the initial InterfaceMethodRef
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1539 Method* InstanceKlass::lookup_method_in_all_interfaces(Symbol* name,
17464
5832cdaf89c6 8027804: JCK resolveMethod test fails expecting AbstractMethodError
hseigel
parents: 13438
diff changeset
1540 Symbol* signature,
5832cdaf89c6 8027804: JCK resolveMethod test fails expecting AbstractMethodError
hseigel
parents: 13438
diff changeset
1541 bool skip_default_methods) const {
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1542 Array<Klass*>* all_ifs = transitive_interfaces();
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1543 int num_ifs = all_ifs->length();
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1544 InstanceKlass *ik = NULL;
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1545 for (int i = 0; i < num_ifs; i++) {
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1546 ik = InstanceKlass::cast(all_ifs->at(i));
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1547 Method* m = ik->lookup_method(name, signature);
17464
5832cdaf89c6 8027804: JCK resolveMethod test fails expecting AbstractMethodError
hseigel
parents: 13438
diff changeset
1548 if (m != NULL && m->is_public() && !m->is_static() &&
5832cdaf89c6 8027804: JCK resolveMethod test fails expecting AbstractMethodError
hseigel
parents: 13438
diff changeset
1549 (!skip_default_methods || !m->is_default_method())) {
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1550 return m;
a61af66fc99e Initial load
duke
parents:
diff changeset
1551 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1552 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1553 return NULL;
a61af66fc99e Initial load
duke
parents:
diff changeset
1554 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1555
a61af66fc99e Initial load
duke
parents:
diff changeset
1556 /* jni_id_for_impl for jfieldIds only */
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1557 JNIid* InstanceKlass::jni_id_for_impl(instanceKlassHandle this_oop, int offset) {
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1558 MutexLocker ml(JfieldIdCreation_lock);
a61af66fc99e Initial load
duke
parents:
diff changeset
1559 // Retry lookup after we got the lock
a61af66fc99e Initial load
duke
parents:
diff changeset
1560 JNIid* probe = this_oop->jni_ids() == NULL ? NULL : this_oop->jni_ids()->find(offset);
a61af66fc99e Initial load
duke
parents:
diff changeset
1561 if (probe == NULL) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1562 // Slow case, allocate new static field identifier
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1563 probe = new JNIid(this_oop(), offset, this_oop->jni_ids());
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1564 this_oop->set_jni_ids(probe);
a61af66fc99e Initial load
duke
parents:
diff changeset
1565 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1566 return probe;
a61af66fc99e Initial load
duke
parents:
diff changeset
1567 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1568
a61af66fc99e Initial load
duke
parents:
diff changeset
1569
a61af66fc99e Initial load
duke
parents:
diff changeset
1570 /* jni_id_for for jfieldIds only */
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1571 JNIid* InstanceKlass::jni_id_for(int offset) {
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1572 JNIid* probe = jni_ids() == NULL ? NULL : jni_ids()->find(offset);
a61af66fc99e Initial load
duke
parents:
diff changeset
1573 if (probe == NULL) {
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1574 probe = jni_id_for_impl(this, offset);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1575 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1576 return probe;
a61af66fc99e Initial load
duke
parents:
diff changeset
1577 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1578
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1579 u2 InstanceKlass::enclosing_method_data(int offset) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1580 Array<jushort>* inner_class_list = inner_classes();
5967
f7c4174b33ba 7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents: 4739
diff changeset
1581 if (inner_class_list == NULL) {
f7c4174b33ba 7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents: 4739
diff changeset
1582 return 0;
f7c4174b33ba 7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents: 4739
diff changeset
1583 }
f7c4174b33ba 7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents: 4739
diff changeset
1584 int length = inner_class_list->length();
f7c4174b33ba 7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents: 4739
diff changeset
1585 if (length % inner_class_next_offset == 0) {
f7c4174b33ba 7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents: 4739
diff changeset
1586 return 0;
f7c4174b33ba 7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents: 4739
diff changeset
1587 } else {
f7c4174b33ba 7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents: 4739
diff changeset
1588 int index = length - enclosing_method_attribute_size;
f7c4174b33ba 7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents: 4739
diff changeset
1589 assert(offset < enclosing_method_attribute_size, "invalid offset");
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1590 return inner_class_list->at(index + offset);
5967
f7c4174b33ba 7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents: 4739
diff changeset
1591 }
f7c4174b33ba 7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents: 4739
diff changeset
1592 }
f7c4174b33ba 7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents: 4739
diff changeset
1593
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1594 void InstanceKlass::set_enclosing_method_indices(u2 class_index,
5967
f7c4174b33ba 7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents: 4739
diff changeset
1595 u2 method_index) {
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1596 Array<jushort>* inner_class_list = inner_classes();
5967
f7c4174b33ba 7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents: 4739
diff changeset
1597 assert (inner_class_list != NULL, "_inner_classes list is not set up");
f7c4174b33ba 7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents: 4739
diff changeset
1598 int length = inner_class_list->length();
f7c4174b33ba 7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents: 4739
diff changeset
1599 if (length % 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: 4739
diff changeset
1600 int index = length - enclosing_method_attribute_size;
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1601 inner_class_list->at_put(
5967
f7c4174b33ba 7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents: 4739
diff changeset
1602 index + enclosing_method_class_index_offset, class_index);
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1603 inner_class_list->at_put(
5967
f7c4174b33ba 7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents: 4739
diff changeset
1604 index + enclosing_method_method_index_offset, method_index);
f7c4174b33ba 7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents: 4739
diff changeset
1605 }
f7c4174b33ba 7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents: 4739
diff changeset
1606 }
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1607
a61af66fc99e Initial load
duke
parents:
diff changeset
1608 // Lookup or create a jmethodID.
977
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1609 // This code is called by the VMThread and JavaThreads so the
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1610 // locking has to be done very carefully to avoid deadlocks
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1611 // and/or other cache consistency problems.
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1612 //
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1613 jmethodID InstanceKlass::get_jmethod_id(instanceKlassHandle ik_h, methodHandle method_h) {
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1614 size_t idnum = (size_t)method_h->method_idnum();
a61af66fc99e Initial load
duke
parents:
diff changeset
1615 jmethodID* jmeths = ik_h->methods_jmethod_ids_acquire();
a61af66fc99e Initial load
duke
parents:
diff changeset
1616 size_t length = 0;
a61af66fc99e Initial load
duke
parents:
diff changeset
1617 jmethodID id = NULL;
977
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1618
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1619 // We use a double-check locking idiom here because this cache is
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1620 // performance sensitive. In the normal system, this cache only
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1621 // transitions from NULL to non-NULL which is safe because we use
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1622 // release_set_methods_jmethod_ids() to advertise the new cache.
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1623 // A partially constructed cache should never be seen by a racing
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1624 // thread. We also use release_store_ptr() to save a new jmethodID
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1625 // in the cache so a partially constructed jmethodID should never be
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1626 // seen either. Cache reads of existing jmethodIDs proceed without a
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1627 // lock, but cache writes of a new jmethodID requires uniqueness and
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1628 // creation of the cache itself requires no leaks so a lock is
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1629 // generally acquired in those two cases.
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1630 //
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1631 // If the RedefineClasses() API has been used, then this cache can
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1632 // grow and we'll have transitions from non-NULL to bigger non-NULL.
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1633 // Cache creation requires no leaks and we require safety between all
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1634 // cache accesses and freeing of the old cache so a lock is generally
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1635 // acquired when the RedefineClasses() API has been used.
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1636
977
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1637 if (jmeths != NULL) {
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1638 // the cache already exists
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1639 if (!ik_h->idnum_can_increment()) {
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1640 // the cache can't grow so we can just get the current values
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1641 get_jmethod_id_length_value(jmeths, idnum, &length, &id);
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1642 } else {
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1643 // cache can grow so we have to be more careful
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1644 if (Threads::number_of_threads() == 0 ||
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1645 SafepointSynchronize::is_at_safepoint()) {
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1646 // we're single threaded or at a safepoint - no locking needed
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1647 get_jmethod_id_length_value(jmeths, idnum, &length, &id);
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1648 } else {
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1649 MutexLocker ml(JmethodIdCreation_lock);
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1650 get_jmethod_id_length_value(jmeths, idnum, &length, &id);
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1651 }
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1652 }
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1653 }
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1654 // implied else:
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1655 // we need to allocate a cache so default length and id values are good
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1656
977
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1657 if (jmeths == NULL || // no cache yet
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1658 length <= idnum || // cache is too short
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1659 id == NULL) { // cache doesn't contain entry
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1660
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1661 // This function can be called by the VMThread so we have to do all
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1662 // things that might block on a safepoint before grabbing the lock.
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1663 // Otherwise, we can deadlock with the VMThread or have a cache
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1664 // consistency issue. These vars keep track of what we might have
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1665 // to free after the lock is dropped.
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1666 jmethodID to_dealloc_id = NULL;
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1667 jmethodID* to_dealloc_jmeths = NULL;
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1668
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1669 // may not allocate new_jmeths or use it if we allocate it
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1670 jmethodID* new_jmeths = NULL;
a61af66fc99e Initial load
duke
parents:
diff changeset
1671 if (length <= idnum) {
977
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1672 // allocate a new cache that might be used
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1673 size_t size = MAX2(idnum+1, (size_t)ik_h->idnum_allocated_count());
6197
d2a62e0f25eb 6995781: Native Memory Tracking (Phase 1)
zgu
parents: 6038
diff changeset
1674 new_jmeths = NEW_C_HEAP_ARRAY(jmethodID, size+1, mtClass);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1675 memset(new_jmeths, 0, (size+1)*sizeof(jmethodID));
977
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1676 // cache size is stored in element[0], other elements offset by one
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1677 new_jmeths[0] = (jmethodID)size;
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1678 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1679
977
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1680 // allocate a new jmethodID that might be used
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1681 jmethodID new_id = NULL;
a61af66fc99e Initial load
duke
parents:
diff changeset
1682 if (method_h->is_old() && !method_h->is_obsolete()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1683 // The method passed in is old (but not obsolete), we need to use the current version
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1684 Method* current_method = ik_h->method_with_idnum((int)idnum);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1685 assert(current_method != NULL, "old and but not obsolete, so should exist");
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1686 new_id = Method::make_jmethod_id(ik_h->class_loader_data(), current_method);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1687 } else {
a61af66fc99e Initial load
duke
parents:
diff changeset
1688 // It is the current version of the method or an obsolete method,
a61af66fc99e Initial load
duke
parents:
diff changeset
1689 // use the version passed in
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1690 new_id = Method::make_jmethod_id(ik_h->class_loader_data(), method_h());
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1691 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1692
977
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1693 if (Threads::number_of_threads() == 0 ||
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1694 SafepointSynchronize::is_at_safepoint()) {
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1695 // we're single threaded or at a safepoint - no locking needed
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1696 id = get_jmethod_id_fetch_or_update(ik_h, idnum, new_id, new_jmeths,
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1697 &to_dealloc_id, &to_dealloc_jmeths);
49
31000d79ec71 6453355: 4/4 new No_Safepoint_Verifier uses fail during GC
dcubed
parents: 47
diff changeset
1698 } else {
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1699 MutexLocker ml(JmethodIdCreation_lock);
977
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1700 id = get_jmethod_id_fetch_or_update(ik_h, idnum, new_id, new_jmeths,
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1701 &to_dealloc_id, &to_dealloc_jmeths);
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1702 }
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1703
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1704 // The lock has been dropped so we can free resources.
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1705 // Free up either the old cache or the new cache if we allocated one.
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1706 if (to_dealloc_jmeths != NULL) {
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1707 FreeHeap(to_dealloc_jmeths);
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1708 }
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1709 // free up the new ID since it wasn't needed
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1710 if (to_dealloc_id != NULL) {
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1711 Method::destroy_jmethod_id(ik_h->class_loader_data(), to_dealloc_id);
49
31000d79ec71 6453355: 4/4 new No_Safepoint_Verifier uses fail during GC
dcubed
parents: 47
diff changeset
1712 }
31000d79ec71 6453355: 4/4 new No_Safepoint_Verifier uses fail during GC
dcubed
parents: 47
diff changeset
1713 }
31000d79ec71 6453355: 4/4 new No_Safepoint_Verifier uses fail during GC
dcubed
parents: 47
diff changeset
1714 return id;
31000d79ec71 6453355: 4/4 new No_Safepoint_Verifier uses fail during GC
dcubed
parents: 47
diff changeset
1715 }
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1716
49
31000d79ec71 6453355: 4/4 new No_Safepoint_Verifier uses fail during GC
dcubed
parents: 47
diff changeset
1717
977
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1718 // Common code to fetch the jmethodID from the cache or update the
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1719 // cache with the new jmethodID. This function should never do anything
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1720 // that causes the caller to go to a safepoint or we can deadlock with
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1721 // the VMThread or have cache consistency issues.
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1722 //
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1723 jmethodID InstanceKlass::get_jmethod_id_fetch_or_update(
977
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1724 instanceKlassHandle ik_h, size_t idnum, jmethodID new_id,
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1725 jmethodID* new_jmeths, jmethodID* to_dealloc_id_p,
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1726 jmethodID** to_dealloc_jmeths_p) {
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1727 assert(new_id != NULL, "sanity check");
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1728 assert(to_dealloc_id_p != NULL, "sanity check");
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1729 assert(to_dealloc_jmeths_p != NULL, "sanity check");
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1730 assert(Threads::number_of_threads() == 0 ||
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1731 SafepointSynchronize::is_at_safepoint() ||
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1732 JmethodIdCreation_lock->owned_by_self(), "sanity check");
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1733
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1734 // reacquire the cache - we are locked, single threaded or at a safepoint
49
31000d79ec71 6453355: 4/4 new No_Safepoint_Verifier uses fail during GC
dcubed
parents: 47
diff changeset
1735 jmethodID* jmeths = ik_h->methods_jmethod_ids_acquire();
977
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1736 jmethodID id = NULL;
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1737 size_t length = 0;
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1738
977
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1739 if (jmeths == NULL || // no cache yet
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1740 (length = (size_t)jmeths[0]) <= idnum) { // cache is too short
49
31000d79ec71 6453355: 4/4 new No_Safepoint_Verifier uses fail during GC
dcubed
parents: 47
diff changeset
1741 if (jmeths != NULL) {
977
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1742 // copy any existing entries from the old cache
49
31000d79ec71 6453355: 4/4 new No_Safepoint_Verifier uses fail during GC
dcubed
parents: 47
diff changeset
1743 for (size_t index = 0; index < length; index++) {
31000d79ec71 6453355: 4/4 new No_Safepoint_Verifier uses fail during GC
dcubed
parents: 47
diff changeset
1744 new_jmeths[index+1] = jmeths[index+1];
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1745 }
977
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1746 *to_dealloc_jmeths_p = jmeths; // save old cache for later delete
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1747 }
49
31000d79ec71 6453355: 4/4 new No_Safepoint_Verifier uses fail during GC
dcubed
parents: 47
diff changeset
1748 ik_h->release_set_methods_jmethod_ids(jmeths = new_jmeths);
31000d79ec71 6453355: 4/4 new No_Safepoint_Verifier uses fail during GC
dcubed
parents: 47
diff changeset
1749 } else {
977
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1750 // fetch jmethodID (if any) from the existing cache
49
31000d79ec71 6453355: 4/4 new No_Safepoint_Verifier uses fail during GC
dcubed
parents: 47
diff changeset
1751 id = jmeths[idnum+1];
977
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1752 *to_dealloc_jmeths_p = new_jmeths; // save new cache for later delete
49
31000d79ec71 6453355: 4/4 new No_Safepoint_Verifier uses fail during GC
dcubed
parents: 47
diff changeset
1753 }
31000d79ec71 6453355: 4/4 new No_Safepoint_Verifier uses fail during GC
dcubed
parents: 47
diff changeset
1754 if (id == NULL) {
977
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1755 // No matching jmethodID in the existing cache or we have a new
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1756 // cache or we just grew the cache. This cache write is done here
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1757 // by the first thread to win the foot race because a jmethodID
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1758 // needs to be unique once it is generally available.
49
31000d79ec71 6453355: 4/4 new No_Safepoint_Verifier uses fail during GC
dcubed
parents: 47
diff changeset
1759 id = new_id;
977
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1760
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1761 // The jmethodID cache can be read while unlocked so we have to
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1762 // make sure the new jmethodID is complete before installing it
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1763 // in the cache.
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1764 OrderAccess::release_store_ptr(&jmeths[idnum+1], id);
49
31000d79ec71 6453355: 4/4 new No_Safepoint_Verifier uses fail during GC
dcubed
parents: 47
diff changeset
1765 } else {
977
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1766 *to_dealloc_id_p = new_id; // save new id for later delete
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1767 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1768 return id;
a61af66fc99e Initial load
duke
parents:
diff changeset
1769 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1770
a61af66fc99e Initial load
duke
parents:
diff changeset
1771
977
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1772 // Common code to get the jmethodID cache length and the jmethodID
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1773 // value at index idnum if there is one.
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1774 //
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1775 void InstanceKlass::get_jmethod_id_length_value(jmethodID* cache,
977
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1776 size_t idnum, size_t *length_p, jmethodID* id_p) {
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1777 assert(cache != NULL, "sanity check");
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1778 assert(length_p != NULL, "sanity check");
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1779 assert(id_p != NULL, "sanity check");
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1780
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1781 // cache size is stored in element[0], other elements offset by one
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1782 *length_p = (size_t)cache[0];
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1783 if (*length_p <= idnum) { // cache is too short
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1784 *id_p = NULL;
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1785 } else {
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1786 *id_p = cache[idnum+1]; // fetch jmethodID (if any)
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1787 }
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1788 }
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1789
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1790
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1791 // Lookup a jmethodID, NULL if not found. Do no blocking, no allocations, no handles
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1792 jmethodID InstanceKlass::jmethod_id_or_null(Method* method) {
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1793 size_t idnum = (size_t)method->method_idnum();
a61af66fc99e Initial load
duke
parents:
diff changeset
1794 jmethodID* jmeths = methods_jmethod_ids_acquire();
a61af66fc99e Initial load
duke
parents:
diff changeset
1795 size_t length; // length assigned as debugging crumb
a61af66fc99e Initial load
duke
parents:
diff changeset
1796 jmethodID id = NULL;
977
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1797 if (jmeths != NULL && // If there is a cache
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1798 (length = (size_t)jmeths[0]) > idnum) { // and if it is long enough,
a61af66fc99e Initial load
duke
parents:
diff changeset
1799 id = jmeths[idnum+1]; // Look up the id (may be NULL)
a61af66fc99e Initial load
duke
parents:
diff changeset
1800 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1801 return id;
a61af66fc99e Initial load
duke
parents:
diff changeset
1802 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1803
a61af66fc99e Initial load
duke
parents:
diff changeset
1804
a61af66fc99e Initial load
duke
parents:
diff changeset
1805 //
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parents:
diff changeset
1806 // Walk the list of dependent nmethods searching for nmethods which
3852
fdb992d83a87 7071653: JSR 292: call site change notification should be pushed not pulled
twisti
parents: 3748
diff changeset
1807 // are dependent on the changes that were passed in and mark them for
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1808 // deoptimization. Returns the number of nmethods found.
a61af66fc99e Initial load
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parents:
diff changeset
1809 //
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1810 int InstanceKlass::mark_dependent_nmethods(DepChange& changes) {
0
a61af66fc99e Initial load
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parents:
diff changeset
1811 assert_locked_or_safepoint(CodeCache_lock);
a61af66fc99e Initial load
duke
parents:
diff changeset
1812 int found = 0;
a61af66fc99e Initial load
duke
parents:
diff changeset
1813 nmethodBucket* b = _dependencies;
a61af66fc99e Initial load
duke
parents:
diff changeset
1814 while (b != NULL) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1815 nmethod* nm = b->get_nmethod();
a61af66fc99e Initial load
duke
parents:
diff changeset
1816 // since dependencies aren't removed until an nmethod becomes a zombie,
a61af66fc99e Initial load
duke
parents:
diff changeset
1817 // the dependency list may contain nmethods which aren't alive.
a61af66fc99e Initial load
duke
parents:
diff changeset
1818 if (nm->is_alive() && !nm->is_marked_for_deoptimization() && nm->check_dependency_on(changes)) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1819 if (TraceDependencies) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1820 ResourceMark rm;
a61af66fc99e Initial load
duke
parents:
diff changeset
1821 tty->print_cr("Marked for deoptimization");
a61af66fc99e Initial load
duke
parents:
diff changeset
1822 tty->print_cr(" context = %s", this->external_name());
a61af66fc99e Initial load
duke
parents:
diff changeset
1823 changes.print();
a61af66fc99e Initial load
duke
parents:
diff changeset
1824 nm->print();
a61af66fc99e Initial load
duke
parents:
diff changeset
1825 nm->print_dependencies();
a61af66fc99e Initial load
duke
parents:
diff changeset
1826 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1827 nm->mark_for_deoptimization();
a61af66fc99e Initial load
duke
parents:
diff changeset
1828 found++;
a61af66fc99e Initial load
duke
parents:
diff changeset
1829 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1830 b = b->next();
a61af66fc99e Initial load
duke
parents:
diff changeset
1831 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1832 return found;
a61af66fc99e Initial load
duke
parents:
diff changeset
1833 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1834
a61af66fc99e Initial load
duke
parents:
diff changeset
1835
a61af66fc99e Initial load
duke
parents:
diff changeset
1836 //
a61af66fc99e Initial load
duke
parents:
diff changeset
1837 // Add an nmethodBucket to the list of dependencies for this nmethod.
a61af66fc99e Initial load
duke
parents:
diff changeset
1838 // It's possible that an nmethod has multiple dependencies on this klass
a61af66fc99e Initial load
duke
parents:
diff changeset
1839 // so a count is kept for each bucket to guarantee that creation and
a61af66fc99e Initial load
duke
parents:
diff changeset
1840 // deletion of dependencies is consistent.
a61af66fc99e Initial load
duke
parents:
diff changeset
1841 //
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1842 void InstanceKlass::add_dependent_nmethod(nmethod* nm) {
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1843 assert_locked_or_safepoint(CodeCache_lock);
a61af66fc99e Initial load
duke
parents:
diff changeset
1844 nmethodBucket* b = _dependencies;
a61af66fc99e Initial load
duke
parents:
diff changeset
1845 nmethodBucket* last = NULL;
a61af66fc99e Initial load
duke
parents:
diff changeset
1846 while (b != NULL) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1847 if (nm == b->get_nmethod()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1848 b->increment();
a61af66fc99e Initial load
duke
parents:
diff changeset
1849 return;
a61af66fc99e Initial load
duke
parents:
diff changeset
1850 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1851 b = b->next();
a61af66fc99e Initial load
duke
parents:
diff changeset
1852 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1853 _dependencies = new nmethodBucket(nm, _dependencies);
a61af66fc99e Initial load
duke
parents:
diff changeset
1854 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1855
a61af66fc99e Initial load
duke
parents:
diff changeset
1856
a61af66fc99e Initial load
duke
parents:
diff changeset
1857 //
a61af66fc99e Initial load
duke
parents:
diff changeset
1858 // Decrement count of the nmethod in the dependency list and remove
a61af66fc99e Initial load
duke
parents:
diff changeset
1859 // the bucket competely when the count goes to 0. This method must
a61af66fc99e Initial load
duke
parents:
diff changeset
1860 // find a corresponding bucket otherwise there's a bug in the
a61af66fc99e Initial load
duke
parents:
diff changeset
1861 // recording of dependecies.
a61af66fc99e Initial load
duke
parents:
diff changeset
1862 //
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1863 void InstanceKlass::remove_dependent_nmethod(nmethod* nm) {
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1864 assert_locked_or_safepoint(CodeCache_lock);
a61af66fc99e Initial load
duke
parents:
diff changeset
1865 nmethodBucket* b = _dependencies;
a61af66fc99e Initial load
duke
parents:
diff changeset
1866 nmethodBucket* last = NULL;
a61af66fc99e Initial load
duke
parents:
diff changeset
1867 while (b != NULL) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1868 if (nm == b->get_nmethod()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1869 if (b->decrement() == 0) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1870 if (last == NULL) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1871 _dependencies = b->next();
a61af66fc99e Initial load
duke
parents:
diff changeset
1872 } else {
a61af66fc99e Initial load
duke
parents:
diff changeset
1873 last->set_next(b->next());
a61af66fc99e Initial load
duke
parents:
diff changeset
1874 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1875 delete b;
a61af66fc99e Initial load
duke
parents:
diff changeset
1876 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1877 return;
a61af66fc99e Initial load
duke
parents:
diff changeset
1878 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1879 last = b;
a61af66fc99e Initial load
duke
parents:
diff changeset
1880 b = b->next();
a61af66fc99e Initial load
duke
parents:
diff changeset
1881 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1882 #ifdef ASSERT
a61af66fc99e Initial load
duke
parents:
diff changeset
1883 tty->print_cr("### %s can't find dependent nmethod:", this->external_name());
a61af66fc99e Initial load
duke
parents:
diff changeset
1884 nm->print();
a61af66fc99e Initial load
duke
parents:
diff changeset
1885 #endif // ASSERT
a61af66fc99e Initial load
duke
parents:
diff changeset
1886 ShouldNotReachHere();
a61af66fc99e Initial load
duke
parents:
diff changeset
1887 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1888
a61af66fc99e Initial load
duke
parents:
diff changeset
1889
a61af66fc99e Initial load
duke
parents:
diff changeset
1890 #ifndef PRODUCT
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1891 void InstanceKlass::print_dependent_nmethods(bool verbose) {
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1892 nmethodBucket* b = _dependencies;
a61af66fc99e Initial load
duke
parents:
diff changeset
1893 int idx = 0;
a61af66fc99e Initial load
duke
parents:
diff changeset
1894 while (b != NULL) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1895 nmethod* nm = b->get_nmethod();
a61af66fc99e Initial load
duke
parents:
diff changeset
1896 tty->print("[%d] count=%d { ", idx++, b->count());
a61af66fc99e Initial load
duke
parents:
diff changeset
1897 if (!verbose) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1898 nm->print_on(tty, "nmethod");
a61af66fc99e Initial load
duke
parents:
diff changeset
1899 tty->print_cr(" } ");
a61af66fc99e Initial load
duke
parents:
diff changeset
1900 } else {
a61af66fc99e Initial load
duke
parents:
diff changeset
1901 nm->print();
a61af66fc99e Initial load
duke
parents:
diff changeset
1902 nm->print_dependencies();
a61af66fc99e Initial load
duke
parents:
diff changeset
1903 tty->print_cr("--- } ");
a61af66fc99e Initial load
duke
parents:
diff changeset
1904 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1905 b = b->next();
a61af66fc99e Initial load
duke
parents:
diff changeset
1906 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1907 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1908
a61af66fc99e Initial load
duke
parents:
diff changeset
1909
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1910 bool InstanceKlass::is_dependent_nmethod(nmethod* nm) {
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1911 nmethodBucket* b = _dependencies;
a61af66fc99e Initial load
duke
parents:
diff changeset
1912 while (b != NULL) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1913 if (nm == b->get_nmethod()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1914 return true;
a61af66fc99e Initial load
duke
parents:
diff changeset
1915 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1916 b = b->next();
a61af66fc99e Initial load
duke
parents:
diff changeset
1917 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1918 return false;
a61af66fc99e Initial load
duke
parents:
diff changeset
1919 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1920 #endif //PRODUCT
a61af66fc99e Initial load
duke
parents:
diff changeset
1921
a61af66fc99e Initial load
duke
parents:
diff changeset
1922
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1923 // Garbage collection
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1924
113
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
1925 #ifdef ASSERT
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
1926 template <class T> void assert_is_in(T *p) {
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
1927 T heap_oop = oopDesc::load_heap_oop(p);
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
1928 if (!oopDesc::is_null(heap_oop)) {
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
1929 oop o = oopDesc::decode_heap_oop_not_null(heap_oop);
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
1930 assert(Universe::heap()->is_in(o), "should be in heap");
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
1931 }
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
1932 }
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
1933 template <class T> void assert_is_in_closed_subset(T *p) {
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
1934 T heap_oop = oopDesc::load_heap_oop(p);
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
1935 if (!oopDesc::is_null(heap_oop)) {
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
1936 oop o = oopDesc::decode_heap_oop_not_null(heap_oop);
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1937 assert(Universe::heap()->is_in_closed_subset(o),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1938 err_msg("should be in closed *p " INTPTR_FORMAT " " INTPTR_FORMAT, (address)p, (address)o));
113
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
1939 }
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
1940 }
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
1941 template <class T> void assert_is_in_reserved(T *p) {
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
1942 T heap_oop = oopDesc::load_heap_oop(p);
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
1943 if (!oopDesc::is_null(heap_oop)) {
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
1944 oop o = oopDesc::decode_heap_oop_not_null(heap_oop);
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
1945 assert(Universe::heap()->is_in_reserved(o), "should be in reserved");
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
1946 }
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
1947 }
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
1948 template <class T> void assert_nothing(T *p) {}
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
1949
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
1950 #else
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
1951 template <class T> void assert_is_in(T *p) {}
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
1952 template <class T> void assert_is_in_closed_subset(T *p) {}
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
1953 template <class T> void assert_is_in_reserved(T *p) {}
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
1954 template <class T> void assert_nothing(T *p) {}
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
1955 #endif // ASSERT
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
1956
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
1957 //
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
1958 // Macros that iterate over areas of oops which are specialized on type of
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
1959 // oop pointer either narrow or wide, depending on UseCompressedOops
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
1960 //
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
1961 // Parameters are:
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
1962 // T - type of oop to point to (either oop or narrowOop)
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
1963 // start_p - starting pointer for region to iterate over
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
1964 // count - number of oops or narrowOops to iterate over
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
1965 // do_oop - action to perform on each oop (it's arbitrary C code which
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
1966 // makes it more efficient to put in a macro rather than making
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
1967 // it a template function)
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
1968 // assert_fn - assert function which is template function because performance
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
1969 // doesn't matter when enabled.
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
1970 #define InstanceKlass_SPECIALIZED_OOP_ITERATE( \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
1971 T, start_p, count, do_oop, \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
1972 assert_fn) \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
1973 { \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
1974 T* p = (T*)(start_p); \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
1975 T* const end = p + (count); \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
1976 while (p < end) { \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
1977 (assert_fn)(p); \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
1978 do_oop; \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
1979 ++p; \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
1980 } \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
1981 }
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
1982
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
1983 #define InstanceKlass_SPECIALIZED_OOP_REVERSE_ITERATE( \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
1984 T, start_p, count, do_oop, \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
1985 assert_fn) \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
1986 { \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
1987 T* const start = (T*)(start_p); \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
1988 T* p = start + (count); \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
1989 while (start < p) { \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
1990 --p; \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
1991 (assert_fn)(p); \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
1992 do_oop; \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
1993 } \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
1994 }
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
1995
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
1996 #define InstanceKlass_SPECIALIZED_BOUNDED_OOP_ITERATE( \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
1997 T, start_p, count, low, high, \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
1998 do_oop, assert_fn) \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
1999 { \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
2000 T* const l = (T*)(low); \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
2001 T* const h = (T*)(high); \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
2002 assert(mask_bits((intptr_t)l, sizeof(T)-1) == 0 && \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
2003 mask_bits((intptr_t)h, sizeof(T)-1) == 0, \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
2004 "bounded region must be properly aligned"); \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
2005 T* p = (T*)(start_p); \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
2006 T* end = p + (count); \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
2007 if (p < l) p = l; \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
2008 if (end > h) end = h; \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
2009 while (p < end) { \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
2010 (assert_fn)(p); \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
2011 do_oop; \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
2012 ++p; \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
2013 } \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
2014 }
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
2015
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
2016
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
2017 // The following macros call specialized macros, passing either oop or
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
2018 // narrowOop as the specialization type. These test the UseCompressedOops
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
2019 // flag.
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
2020 #define InstanceKlass_OOP_MAP_ITERATE(obj, do_oop, assert_fn) \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
2021 { \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
2022 /* Compute oopmap block range. The common case \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
2023 is nonstatic_oop_map_size == 1. */ \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
2024 OopMapBlock* map = start_of_nonstatic_oop_maps(); \
938
b37c246bf7ce 6861660: OopMapBlock count/size confusion
jcoomes
parents: 876
diff changeset
2025 OopMapBlock* const end_map = map + nonstatic_oop_map_count(); \
113
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
2026 if (UseCompressedOops) { \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
2027 while (map < end_map) { \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
2028 InstanceKlass_SPECIALIZED_OOP_ITERATE(narrowOop, \
938
b37c246bf7ce 6861660: OopMapBlock count/size confusion
jcoomes
parents: 876
diff changeset
2029 obj->obj_field_addr<narrowOop>(map->offset()), map->count(), \
113
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
2030 do_oop, assert_fn) \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
2031 ++map; \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
2032 } \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
2033 } else { \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
2034 while (map < end_map) { \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
2035 InstanceKlass_SPECIALIZED_OOP_ITERATE(oop, \
938
b37c246bf7ce 6861660: OopMapBlock count/size confusion
jcoomes
parents: 876
diff changeset
2036 obj->obj_field_addr<oop>(map->offset()), map->count(), \
113
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
2037 do_oop, assert_fn) \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
2038 ++map; \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
2039 } \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
2040 } \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
2041 }
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
2042
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
2043 #define InstanceKlass_OOP_MAP_REVERSE_ITERATE(obj, do_oop, assert_fn) \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
2044 { \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
2045 OopMapBlock* const start_map = start_of_nonstatic_oop_maps(); \
938
b37c246bf7ce 6861660: OopMapBlock count/size confusion
jcoomes
parents: 876
diff changeset
2046 OopMapBlock* map = start_map + nonstatic_oop_map_count(); \
113
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
2047 if (UseCompressedOops) { \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
2048 while (start_map < map) { \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
2049 --map; \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
2050 InstanceKlass_SPECIALIZED_OOP_REVERSE_ITERATE(narrowOop, \
938
b37c246bf7ce 6861660: OopMapBlock count/size confusion
jcoomes
parents: 876
diff changeset
2051 obj->obj_field_addr<narrowOop>(map->offset()), map->count(), \
113
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
2052 do_oop, assert_fn) \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
2053 } \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
2054 } else { \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
2055 while (start_map < map) { \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
2056 --map; \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
2057 InstanceKlass_SPECIALIZED_OOP_REVERSE_ITERATE(oop, \
938
b37c246bf7ce 6861660: OopMapBlock count/size confusion
jcoomes
parents: 876
diff changeset
2058 obj->obj_field_addr<oop>(map->offset()), map->count(), \
113
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
2059 do_oop, assert_fn) \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
2060 } \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
2061 } \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
2062 }
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
2063
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
2064 #define InstanceKlass_BOUNDED_OOP_MAP_ITERATE(obj, low, high, do_oop, \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
2065 assert_fn) \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
2066 { \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
2067 /* Compute oopmap block range. The common case is \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
2068 nonstatic_oop_map_size == 1, so we accept the \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
2069 usually non-existent extra overhead of examining \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
2070 all the maps. */ \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
2071 OopMapBlock* map = start_of_nonstatic_oop_maps(); \
938
b37c246bf7ce 6861660: OopMapBlock count/size confusion
jcoomes
parents: 876
diff changeset
2072 OopMapBlock* const end_map = map + nonstatic_oop_map_count(); \
113
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
2073 if (UseCompressedOops) { \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
2074 while (map < end_map) { \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
2075 InstanceKlass_SPECIALIZED_BOUNDED_OOP_ITERATE(narrowOop, \
938
b37c246bf7ce 6861660: OopMapBlock count/size confusion
jcoomes
parents: 876
diff changeset
2076 obj->obj_field_addr<narrowOop>(map->offset()), map->count(), \
113
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
2077 low, high, \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
2078 do_oop, assert_fn) \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
2079 ++map; \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
2080 } \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
2081 } else { \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
2082 while (map < end_map) { \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
2083 InstanceKlass_SPECIALIZED_BOUNDED_OOP_ITERATE(oop, \
938
b37c246bf7ce 6861660: OopMapBlock count/size confusion
jcoomes
parents: 876
diff changeset
2084 obj->obj_field_addr<oop>(map->offset()), map->count(), \
113
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
2085 low, high, \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
2086 do_oop, assert_fn) \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
2087 ++map; \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
2088 } \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
2089 } \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
2090 }
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
2091
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2092 void InstanceKlass::oop_follow_contents(oop obj) {
113
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
2093 assert(obj != NULL, "can't follow the content of NULL object");
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2094 MarkSweep::follow_klass(obj->klass());
113
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
2095 InstanceKlass_OOP_MAP_ITERATE( \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
2096 obj, \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
2097 MarkSweep::mark_and_push(p), \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
2098 assert_is_in_closed_subset)
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2099 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2100
8001
db9981fd3124 8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents: 7610
diff changeset
2101 #if INCLUDE_ALL_GCS
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2102 void InstanceKlass::oop_follow_contents(ParCompactionManager* cm,
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2103 oop obj) {
113
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
2104 assert(obj != NULL, "can't follow the content of NULL object");
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2105 PSParallelCompact::follow_klass(cm, obj->klass());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2106 // Only mark the header and let the scan of the meta-data mark
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2107 // everything else.
113
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
2108 InstanceKlass_OOP_MAP_ITERATE( \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
2109 obj, \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
2110 PSParallelCompact::mark_and_push(cm, p), \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
2111 assert_is_in)
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2112 }
8001
db9981fd3124 8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents: 7610
diff changeset
2113 #endif // INCLUDE_ALL_GCS
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2114
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2115 // closure's do_metadata() method dictates whether the given closure should be
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2116 // applied to the klass ptr in the object header.
a61af66fc99e Initial load
duke
parents:
diff changeset
2117
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2118 #define if_do_metadata_checked(closure, nv_suffix) \
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2119 /* Make sure the non-virtual and the virtual versions match. */ \
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2120 assert(closure->do_metadata##nv_suffix() == closure->do_metadata(), \
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2121 "Inconsistency in do_metadata"); \
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2122 if (closure->do_metadata##nv_suffix())
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2123
342
37f87013dfd8 6711316: Open source the Garbage-First garbage collector
ysr
parents: 113
diff changeset
2124 #define InstanceKlass_OOP_OOP_ITERATE_DEFN(OopClosureType, nv_suffix) \
37f87013dfd8 6711316: Open source the Garbage-First garbage collector
ysr
parents: 113
diff changeset
2125 \
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2126 int InstanceKlass::oop_oop_iterate##nv_suffix(oop obj, OopClosureType* closure) { \
113
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
2127 SpecializationStats::record_iterate_call##nv_suffix(SpecializationStats::ik);\
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
2128 /* header */ \
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2129 if_do_metadata_checked(closure, nv_suffix) { \
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2130 closure->do_klass##nv_suffix(obj->klass()); \
113
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
2131 } \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
2132 InstanceKlass_OOP_MAP_ITERATE( \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
2133 obj, \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
2134 SpecializationStats:: \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
2135 record_do_oop_call##nv_suffix(SpecializationStats::ik); \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
2136 (closure)->do_oop##nv_suffix(p), \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
2137 assert_is_in_closed_subset) \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
2138 return size_helper(); \
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2139 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2140
8001
db9981fd3124 8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents: 7610
diff changeset
2141 #if INCLUDE_ALL_GCS
342
37f87013dfd8 6711316: Open source the Garbage-First garbage collector
ysr
parents: 113
diff changeset
2142 #define InstanceKlass_OOP_OOP_ITERATE_BACKWARDS_DEFN(OopClosureType, nv_suffix) \
37f87013dfd8 6711316: Open source the Garbage-First garbage collector
ysr
parents: 113
diff changeset
2143 \
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2144 int InstanceKlass::oop_oop_iterate_backwards##nv_suffix(oop obj, \
342
37f87013dfd8 6711316: Open source the Garbage-First garbage collector
ysr
parents: 113
diff changeset
2145 OopClosureType* closure) { \
37f87013dfd8 6711316: Open source the Garbage-First garbage collector
ysr
parents: 113
diff changeset
2146 SpecializationStats::record_iterate_call##nv_suffix(SpecializationStats::ik); \
37f87013dfd8 6711316: Open source the Garbage-First garbage collector
ysr
parents: 113
diff changeset
2147 /* header */ \
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2148 if_do_metadata_checked(closure, nv_suffix) { \
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2149 closure->do_klass##nv_suffix(obj->klass()); \
342
37f87013dfd8 6711316: Open source the Garbage-First garbage collector
ysr
parents: 113
diff changeset
2150 } \
37f87013dfd8 6711316: Open source the Garbage-First garbage collector
ysr
parents: 113
diff changeset
2151 /* instance variables */ \
37f87013dfd8 6711316: Open source the Garbage-First garbage collector
ysr
parents: 113
diff changeset
2152 InstanceKlass_OOP_MAP_REVERSE_ITERATE( \
37f87013dfd8 6711316: Open source the Garbage-First garbage collector
ysr
parents: 113
diff changeset
2153 obj, \
37f87013dfd8 6711316: Open source the Garbage-First garbage collector
ysr
parents: 113
diff changeset
2154 SpecializationStats::record_do_oop_call##nv_suffix(SpecializationStats::ik);\
37f87013dfd8 6711316: Open source the Garbage-First garbage collector
ysr
parents: 113
diff changeset
2155 (closure)->do_oop##nv_suffix(p), \
37f87013dfd8 6711316: Open source the Garbage-First garbage collector
ysr
parents: 113
diff changeset
2156 assert_is_in_closed_subset) \
37f87013dfd8 6711316: Open source the Garbage-First garbage collector
ysr
parents: 113
diff changeset
2157 return size_helper(); \
37f87013dfd8 6711316: Open source the Garbage-First garbage collector
ysr
parents: 113
diff changeset
2158 }
8001
db9981fd3124 8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents: 7610
diff changeset
2159 #endif // INCLUDE_ALL_GCS
342
37f87013dfd8 6711316: Open source the Garbage-First garbage collector
ysr
parents: 113
diff changeset
2160
113
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
2161 #define InstanceKlass_OOP_OOP_ITERATE_DEFN_m(OopClosureType, nv_suffix) \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
2162 \
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2163 int InstanceKlass::oop_oop_iterate##nv_suffix##_m(oop obj, \
113
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
2164 OopClosureType* closure, \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
2165 MemRegion mr) { \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
2166 SpecializationStats::record_iterate_call##nv_suffix(SpecializationStats::ik);\
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2167 if_do_metadata_checked(closure, nv_suffix) { \
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2168 if (mr.contains(obj)) { \
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2169 closure->do_klass##nv_suffix(obj->klass()); \
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2170 } \
113
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
2171 } \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
2172 InstanceKlass_BOUNDED_OOP_MAP_ITERATE( \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
2173 obj, mr.start(), mr.end(), \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
2174 (closure)->do_oop##nv_suffix(p), \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
2175 assert_is_in_closed_subset) \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
2176 return size_helper(); \
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2177 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2178
a61af66fc99e Initial load
duke
parents:
diff changeset
2179 ALL_OOP_OOP_ITERATE_CLOSURES_1(InstanceKlass_OOP_OOP_ITERATE_DEFN)
342
37f87013dfd8 6711316: Open source the Garbage-First garbage collector
ysr
parents: 113
diff changeset
2180 ALL_OOP_OOP_ITERATE_CLOSURES_2(InstanceKlass_OOP_OOP_ITERATE_DEFN)
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2181 ALL_OOP_OOP_ITERATE_CLOSURES_1(InstanceKlass_OOP_OOP_ITERATE_DEFN_m)
342
37f87013dfd8 6711316: Open source the Garbage-First garbage collector
ysr
parents: 113
diff changeset
2182 ALL_OOP_OOP_ITERATE_CLOSURES_2(InstanceKlass_OOP_OOP_ITERATE_DEFN_m)
8001
db9981fd3124 8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents: 7610
diff changeset
2183 #if INCLUDE_ALL_GCS
342
37f87013dfd8 6711316: Open source the Garbage-First garbage collector
ysr
parents: 113
diff changeset
2184 ALL_OOP_OOP_ITERATE_CLOSURES_1(InstanceKlass_OOP_OOP_ITERATE_BACKWARDS_DEFN)
37f87013dfd8 6711316: Open source the Garbage-First garbage collector
ysr
parents: 113
diff changeset
2185 ALL_OOP_OOP_ITERATE_CLOSURES_2(InstanceKlass_OOP_OOP_ITERATE_BACKWARDS_DEFN)
8001
db9981fd3124 8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents: 7610
diff changeset
2186 #endif // INCLUDE_ALL_GCS
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2187
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2188 int InstanceKlass::oop_adjust_pointers(oop obj) {
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2189 int size = size_helper();
113
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
2190 InstanceKlass_OOP_MAP_ITERATE( \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
2191 obj, \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
2192 MarkSweep::adjust_pointer(p), \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
2193 assert_is_in)
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2194 return size;
a61af66fc99e Initial load
duke
parents:
diff changeset
2195 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2196
8001
db9981fd3124 8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents: 7610
diff changeset
2197 #if INCLUDE_ALL_GCS
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2198 void InstanceKlass::oop_push_contents(PSPromotionManager* pm, oop obj) {
113
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
2199 InstanceKlass_OOP_MAP_REVERSE_ITERATE( \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
2200 obj, \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
2201 if (PSScavenge::should_scavenge(p)) { \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
2202 pm->claim_or_forward_depth(p); \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
2203 }, \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
2204 assert_nothing )
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2205 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2206
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2207 int InstanceKlass::oop_update_pointers(ParCompactionManager* cm, oop obj) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2208 int size = size_helper();
113
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
2209 InstanceKlass_OOP_MAP_ITERATE( \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
2210 obj, \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
2211 PSParallelCompact::adjust_pointer(p), \
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2212 assert_is_in)
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2213 return size;
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2214 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2215
8001
db9981fd3124 8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents: 7610
diff changeset
2216 #endif // INCLUDE_ALL_GCS
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2217
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2218 void InstanceKlass::clean_implementors_list(BoolObjectClosure* is_alive) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2219 assert(is_loader_alive(is_alive), "this klass should be live");
5998
49036505ab5f 7154670: The instanceKlass _implementors[] and _nof_implementors are not needed for non-interface klass.
jiangli
parents: 5969
diff changeset
2220 if (is_interface()) {
49036505ab5f 7154670: The instanceKlass _implementors[] and _nof_implementors are not needed for non-interface klass.
jiangli
parents: 5969
diff changeset
2221 if (ClassUnloading) {
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2222 Klass* impl = implementor();
5998
49036505ab5f 7154670: The instanceKlass _implementors[] and _nof_implementors are not needed for non-interface klass.
jiangli
parents: 5969
diff changeset
2223 if (impl != NULL) {
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2224 if (!impl->is_loader_alive(is_alive)) {
5998
49036505ab5f 7154670: The instanceKlass _implementors[] and _nof_implementors are not needed for non-interface klass.
jiangli
parents: 5969
diff changeset
2225 // remove this guy
8693
872b3feace55 8008750: [partfait] Null pointer deference in hotspot/src/share/vm/oops/instanceKlass.hpp
morris
parents: 8031
diff changeset
2226 Klass** klass = adr_implementor();
872b3feace55 8008750: [partfait] Null pointer deference in hotspot/src/share/vm/oops/instanceKlass.hpp
morris
parents: 8031
diff changeset
2227 assert(klass != NULL, "null klass");
872b3feace55 8008750: [partfait] Null pointer deference in hotspot/src/share/vm/oops/instanceKlass.hpp
morris
parents: 8031
diff changeset
2228 if (klass != NULL) {
872b3feace55 8008750: [partfait] Null pointer deference in hotspot/src/share/vm/oops/instanceKlass.hpp
morris
parents: 8031
diff changeset
2229 *klass = NULL;
872b3feace55 8008750: [partfait] Null pointer deference in hotspot/src/share/vm/oops/instanceKlass.hpp
morris
parents: 8031
diff changeset
2230 }
5998
49036505ab5f 7154670: The instanceKlass _implementors[] and _nof_implementors are not needed for non-interface klass.
jiangli
parents: 5969
diff changeset
2231 }
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2232 }
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2233 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2234 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2235 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2236
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2237 void InstanceKlass::clean_method_data(BoolObjectClosure* is_alive) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2238 for (int m = 0; m < methods()->length(); m++) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2239 MethodData* mdo = methods()->at(m)->method_data();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2240 if (mdo != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2241 for (ProfileData* data = mdo->first_data();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2242 mdo->is_valid(data);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2243 data = mdo->next_data(data)) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2244 data->clean_weak_klass_links(is_alive);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2245 }
13080
6e1826d5c23e 8027572: assert(r != 0) failed: invalid
roland
parents: 12995
diff changeset
2246 ParametersTypeData* parameters = mdo->parameters_type_data();
6e1826d5c23e 8027572: assert(r != 0) failed: invalid
roland
parents: 12995
diff changeset
2247 if (parameters != NULL) {
6e1826d5c23e 8027572: assert(r != 0) failed: invalid
roland
parents: 12995
diff changeset
2248 parameters->clean_weak_klass_links(is_alive);
6e1826d5c23e 8027572: assert(r != 0) failed: invalid
roland
parents: 12995
diff changeset
2249 }
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2250 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2251 }
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2252 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2253
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2254
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2255 static void remove_unshareable_in_class(Klass* k) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2256 // remove klass's unshareable info
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2257 k->remove_unshareable_info();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2258 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2259
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2260 void InstanceKlass::remove_unshareable_info() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2261 Klass::remove_unshareable_info();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2262 // Unlink the class
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2263 if (is_linked()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2264 unlink_class();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2265 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2266 init_implementor();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2267
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2268 constants()->remove_unshareable_info();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2269
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2270 for (int i = 0; i < methods()->length(); i++) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2271 Method* m = methods()->at(i);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2272 m->remove_unshareable_info();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2273 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2274
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2275 // do array classes also.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2276 array_klasses_do(remove_unshareable_in_class);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2277 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2278
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2279 void restore_unshareable_in_class(Klass* k, TRAPS) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2280 k->restore_unshareable_info(CHECK);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2281 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2282
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2283 void InstanceKlass::restore_unshareable_info(TRAPS) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2284 Klass::restore_unshareable_info(CHECK);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2285 instanceKlassHandle ik(THREAD, this);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2286
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2287 Array<Method*>* methods = ik->methods();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2288 int num_methods = methods->length();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2289 for (int index2 = 0; index2 < num_methods; ++index2) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2290 methodHandle m(THREAD, methods->at(index2));
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2291 m()->link_method(m, CHECK);
6733
fa6e618671d7 7195867: NPG: SAJDI tests fail with sun.jvm.hotspot.types.WrongTypeException: No suitable match for type
coleenp
parents: 6725
diff changeset
2292 // restore method's vtable by calling a virtual function
fa6e618671d7 7195867: NPG: SAJDI tests fail with sun.jvm.hotspot.types.WrongTypeException: No suitable match for type
coleenp
parents: 6725
diff changeset
2293 m->restore_vtable();
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2294 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2295 if (JvmtiExport::has_redefined_a_class()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2296 // Reinitialize vtable because RedefineClasses may have changed some
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2297 // entries in this vtable for super classes so the CDS vtable might
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2298 // point to old or obsolete entries. RedefineClasses doesn't fix up
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2299 // vtables in the shared system dictionary, only the main one.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2300 // It also redefines the itable too so fix that too.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2301 ResourceMark rm(THREAD);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2302 ik->vtable()->initialize_vtable(false, CHECK);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2303 ik->itable()->initialize_itable(false, CHECK);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2304 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2305
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2306 // restore constant pool resolved references
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2307 ik->constants()->restore_unshareable_info(CHECK);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2308
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2309 ik->array_klasses_do(restore_unshareable_in_class, CHECK);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2310 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2311
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2312 static void clear_all_breakpoints(Method* m) {
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2313 m->clear_all_breakpoints();
a61af66fc99e Initial load
duke
parents:
diff changeset
2314 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2315
10149
d587a5c30bd8 8011803: release_C_heap_structures is never called for anonymous classes.
coleenp
parents: 10133
diff changeset
2316
d587a5c30bd8 8011803: release_C_heap_structures is never called for anonymous classes.
coleenp
parents: 10133
diff changeset
2317 void InstanceKlass::notify_unload_class(InstanceKlass* ik) {
d587a5c30bd8 8011803: release_C_heap_structures is never called for anonymous classes.
coleenp
parents: 10133
diff changeset
2318 // notify the debugger
d587a5c30bd8 8011803: release_C_heap_structures is never called for anonymous classes.
coleenp
parents: 10133
diff changeset
2319 if (JvmtiExport::should_post_class_unload()) {
d587a5c30bd8 8011803: release_C_heap_structures is never called for anonymous classes.
coleenp
parents: 10133
diff changeset
2320 JvmtiExport::post_class_unload(ik);
d587a5c30bd8 8011803: release_C_heap_structures is never called for anonymous classes.
coleenp
parents: 10133
diff changeset
2321 }
d587a5c30bd8 8011803: release_C_heap_structures is never called for anonymous classes.
coleenp
parents: 10133
diff changeset
2322
d587a5c30bd8 8011803: release_C_heap_structures is never called for anonymous classes.
coleenp
parents: 10133
diff changeset
2323 // notify ClassLoadingService of class unload
d587a5c30bd8 8011803: release_C_heap_structures is never called for anonymous classes.
coleenp
parents: 10133
diff changeset
2324 ClassLoadingService::notify_class_unloaded(ik);
d587a5c30bd8 8011803: release_C_heap_structures is never called for anonymous classes.
coleenp
parents: 10133
diff changeset
2325 }
d587a5c30bd8 8011803: release_C_heap_structures is never called for anonymous classes.
coleenp
parents: 10133
diff changeset
2326
d587a5c30bd8 8011803: release_C_heap_structures is never called for anonymous classes.
coleenp
parents: 10133
diff changeset
2327 void InstanceKlass::release_C_heap_structures(InstanceKlass* ik) {
d587a5c30bd8 8011803: release_C_heap_structures is never called for anonymous classes.
coleenp
parents: 10133
diff changeset
2328 // Clean up C heap
d587a5c30bd8 8011803: release_C_heap_structures is never called for anonymous classes.
coleenp
parents: 10133
diff changeset
2329 ik->release_C_heap_structures();
d587a5c30bd8 8011803: release_C_heap_structures is never called for anonymous classes.
coleenp
parents: 10133
diff changeset
2330 ik->constants()->release_C_heap_structures();
d587a5c30bd8 8011803: release_C_heap_structures is never called for anonymous classes.
coleenp
parents: 10133
diff changeset
2331 }
d587a5c30bd8 8011803: release_C_heap_structures is never called for anonymous classes.
coleenp
parents: 10133
diff changeset
2332
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2333 void InstanceKlass::release_C_heap_structures() {
10149
d587a5c30bd8 8011803: release_C_heap_structures is never called for anonymous classes.
coleenp
parents: 10133
diff changeset
2334
d587a5c30bd8 8011803: release_C_heap_structures is never called for anonymous classes.
coleenp
parents: 10133
diff changeset
2335 // Can't release the constant pool here because the constant pool can be
d587a5c30bd8 8011803: release_C_heap_structures is never called for anonymous classes.
coleenp
parents: 10133
diff changeset
2336 // deallocated separately from the InstanceKlass for default methods and
d587a5c30bd8 8011803: release_C_heap_structures is never called for anonymous classes.
coleenp
parents: 10133
diff changeset
2337 // redefine classes.
d587a5c30bd8 8011803: release_C_heap_structures is never called for anonymous classes.
coleenp
parents: 10133
diff changeset
2338
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2339 // Deallocate oop map cache
a61af66fc99e Initial load
duke
parents:
diff changeset
2340 if (_oop_map_cache != NULL) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2341 delete _oop_map_cache;
a61af66fc99e Initial load
duke
parents:
diff changeset
2342 _oop_map_cache = NULL;
a61af66fc99e Initial load
duke
parents:
diff changeset
2343 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2344
a61af66fc99e Initial load
duke
parents:
diff changeset
2345 // Deallocate JNI identifiers for jfieldIDs
a61af66fc99e Initial load
duke
parents:
diff changeset
2346 JNIid::deallocate(jni_ids());
a61af66fc99e Initial load
duke
parents:
diff changeset
2347 set_jni_ids(NULL);
a61af66fc99e Initial load
duke
parents:
diff changeset
2348
a61af66fc99e Initial load
duke
parents:
diff changeset
2349 jmethodID* jmeths = methods_jmethod_ids_acquire();
a61af66fc99e Initial load
duke
parents:
diff changeset
2350 if (jmeths != (jmethodID*)NULL) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2351 release_set_methods_jmethod_ids(NULL);
a61af66fc99e Initial load
duke
parents:
diff changeset
2352 FreeHeap(jmeths);
a61af66fc99e Initial load
duke
parents:
diff changeset
2353 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2354
10347
6c138b9851fb 8013945: CMS fatal error: must own lock MemberNameTable_lock
sspitsyn
parents: 10345
diff changeset
2355 // Deallocate MemberNameTable
6c138b9851fb 8013945: CMS fatal error: must own lock MemberNameTable_lock
sspitsyn
parents: 10345
diff changeset
2356 {
6c138b9851fb 8013945: CMS fatal error: must own lock MemberNameTable_lock
sspitsyn
parents: 10345
diff changeset
2357 Mutex* lock_or_null = SafepointSynchronize::is_at_safepoint() ? NULL : MemberNameTable_lock;
6c138b9851fb 8013945: CMS fatal error: must own lock MemberNameTable_lock
sspitsyn
parents: 10345
diff changeset
2358 MutexLockerEx ml(lock_or_null, Mutex::_no_safepoint_check_flag);
6c138b9851fb 8013945: CMS fatal error: must own lock MemberNameTable_lock
sspitsyn
parents: 10345
diff changeset
2359 MemberNameTable* mnt = member_names();
6c138b9851fb 8013945: CMS fatal error: must own lock MemberNameTable_lock
sspitsyn
parents: 10345
diff changeset
2360 if (mnt != NULL) {
6c138b9851fb 8013945: CMS fatal error: must own lock MemberNameTable_lock
sspitsyn
parents: 10345
diff changeset
2361 delete mnt;
6c138b9851fb 8013945: CMS fatal error: must own lock MemberNameTable_lock
sspitsyn
parents: 10345
diff changeset
2362 set_member_names(NULL);
6c138b9851fb 8013945: CMS fatal error: must own lock MemberNameTable_lock
sspitsyn
parents: 10345
diff changeset
2363 }
10133
6337ca4dcad8 8008511: JSR 292: MemberName vmtarget refs to methods must be updated at class redefinition
sspitsyn
parents: 9062
diff changeset
2364 }
6337ca4dcad8 8008511: JSR 292: MemberName vmtarget refs to methods must be updated at class redefinition
sspitsyn
parents: 9062
diff changeset
2365
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2366 // release dependencies
a61af66fc99e Initial load
duke
parents:
diff changeset
2367 nmethodBucket* b = _dependencies;
a61af66fc99e Initial load
duke
parents:
diff changeset
2368 _dependencies = NULL;
a61af66fc99e Initial load
duke
parents:
diff changeset
2369 while (b != NULL) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2370 nmethodBucket* next = b->next();
a61af66fc99e Initial load
duke
parents:
diff changeset
2371 delete b;
a61af66fc99e Initial load
duke
parents:
diff changeset
2372 b = next;
a61af66fc99e Initial load
duke
parents:
diff changeset
2373 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2374
a61af66fc99e Initial load
duke
parents:
diff changeset
2375 // Deallocate breakpoint records
a61af66fc99e Initial load
duke
parents:
diff changeset
2376 if (breakpoints() != 0x0) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2377 methods_do(clear_all_breakpoints);
a61af66fc99e Initial load
duke
parents:
diff changeset
2378 assert(breakpoints() == 0x0, "should have cleared breakpoints");
a61af66fc99e Initial load
duke
parents:
diff changeset
2379 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2380
a61af66fc99e Initial load
duke
parents:
diff changeset
2381 // deallocate information about previous versions
a61af66fc99e Initial load
duke
parents:
diff changeset
2382 if (_previous_versions != NULL) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2383 for (int i = _previous_versions->length() - 1; i >= 0; i--) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2384 PreviousVersionNode * pv_node = _previous_versions->at(i);
a61af66fc99e Initial load
duke
parents:
diff changeset
2385 delete pv_node;
a61af66fc99e Initial load
duke
parents:
diff changeset
2386 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2387 delete _previous_versions;
a61af66fc99e Initial load
duke
parents:
diff changeset
2388 _previous_versions = NULL;
a61af66fc99e Initial load
duke
parents:
diff changeset
2389 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2390
a61af66fc99e Initial load
duke
parents:
diff changeset
2391 // deallocate the cached class file
11148
825e6cb66923 8020309: Eliminate InstanceKlass::_cached_class_file_len.
jiangli
parents: 11096
diff changeset
2392 if (_cached_class_file != NULL) {
825e6cb66923 8020309: Eliminate InstanceKlass::_cached_class_file_len.
jiangli
parents: 11096
diff changeset
2393 os::free(_cached_class_file, mtClass);
825e6cb66923 8020309: Eliminate InstanceKlass::_cached_class_file_len.
jiangli
parents: 11096
diff changeset
2394 _cached_class_file = NULL;
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2395 }
2177
3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 1972
diff changeset
2396
3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 1972
diff changeset
2397 // Decrement symbol reference counts associated with the unloaded class.
3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 1972
diff changeset
2398 if (_name != NULL) _name->decrement_refcount();
3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 1972
diff changeset
2399 // unreference array name derived from this class name (arrays of an unloaded
3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 1972
diff changeset
2400 // class can't be referenced anymore).
3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 1972
diff changeset
2401 if (_array_name != NULL) _array_name->decrement_refcount();
6203
04ade88d9712 6294277: java -Xdebug crashes on SourceDebugExtension attribute larger than 64K
fparain
parents: 6197
diff changeset
2402 if (_source_debug_extension != NULL) FREE_C_HEAP_ARRAY(char, _source_debug_extension, mtClass);
7464
ecd24264898b 8005048: NMT: #loaded classes needs to just show the # defined classes
zgu
parents: 7180
diff changeset
2403
ecd24264898b 8005048: NMT: #loaded classes needs to just show the # defined classes
zgu
parents: 7180
diff changeset
2404 assert(_total_instanceKlass_count >= 1, "Sanity check");
ecd24264898b 8005048: NMT: #loaded classes needs to just show the # defined classes
zgu
parents: 7180
diff changeset
2405 Atomic::dec(&_total_instanceKlass_count);
2177
3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 1972
diff changeset
2406 }
3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 1972
diff changeset
2407
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2408 void InstanceKlass::set_source_debug_extension(char* array, int length) {
6203
04ade88d9712 6294277: java -Xdebug crashes on SourceDebugExtension attribute larger than 64K
fparain
parents: 6197
diff changeset
2409 if (array == NULL) {
04ade88d9712 6294277: java -Xdebug crashes on SourceDebugExtension attribute larger than 64K
fparain
parents: 6197
diff changeset
2410 _source_debug_extension = NULL;
04ade88d9712 6294277: java -Xdebug crashes on SourceDebugExtension attribute larger than 64K
fparain
parents: 6197
diff changeset
2411 } else {
04ade88d9712 6294277: java -Xdebug crashes on SourceDebugExtension attribute larger than 64K
fparain
parents: 6197
diff changeset
2412 // Adding one to the attribute length in order to store a null terminator
04ade88d9712 6294277: java -Xdebug crashes on SourceDebugExtension attribute larger than 64K
fparain
parents: 6197
diff changeset
2413 // character could cause an overflow because the attribute length is
04ade88d9712 6294277: java -Xdebug crashes on SourceDebugExtension attribute larger than 64K
fparain
parents: 6197
diff changeset
2414 // already coded with an u4 in the classfile, but in practice, it's
04ade88d9712 6294277: java -Xdebug crashes on SourceDebugExtension attribute larger than 64K
fparain
parents: 6197
diff changeset
2415 // unlikely to happen.
04ade88d9712 6294277: java -Xdebug crashes on SourceDebugExtension attribute larger than 64K
fparain
parents: 6197
diff changeset
2416 assert((length+1) > length, "Overflow checking");
04ade88d9712 6294277: java -Xdebug crashes on SourceDebugExtension attribute larger than 64K
fparain
parents: 6197
diff changeset
2417 char* sde = NEW_C_HEAP_ARRAY(char, (length + 1), mtClass);
04ade88d9712 6294277: java -Xdebug crashes on SourceDebugExtension attribute larger than 64K
fparain
parents: 6197
diff changeset
2418 for (int i = 0; i < length; i++) {
04ade88d9712 6294277: java -Xdebug crashes on SourceDebugExtension attribute larger than 64K
fparain
parents: 6197
diff changeset
2419 sde[i] = array[i];
04ade88d9712 6294277: java -Xdebug crashes on SourceDebugExtension attribute larger than 64K
fparain
parents: 6197
diff changeset
2420 }
04ade88d9712 6294277: java -Xdebug crashes on SourceDebugExtension attribute larger than 64K
fparain
parents: 6197
diff changeset
2421 sde[length] = '\0';
04ade88d9712 6294277: java -Xdebug crashes on SourceDebugExtension attribute larger than 64K
fparain
parents: 6197
diff changeset
2422 _source_debug_extension = sde;
04ade88d9712 6294277: java -Xdebug crashes on SourceDebugExtension attribute larger than 64K
fparain
parents: 6197
diff changeset
2423 }
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2424 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2425
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2426 address InstanceKlass::static_field_addr(int offset) {
12316
190899198332 7195622: CheckUnhandledOops has limited usefulness now
hseigel
parents: 12287
diff changeset
2427 return (address)(offset + InstanceMirrorKlass::offset_of_static_fields() + cast_from_oop<intptr_t>(java_mirror()));
2376
c7f3d0b4570f 7017732: move static fields into Class to prepare for perm gen removal
never
parents: 2357
diff changeset
2428 }
c7f3d0b4570f 7017732: move static fields into Class to prepare for perm gen removal
never
parents: 2357
diff changeset
2429
c7f3d0b4570f 7017732: move static fields into Class to prepare for perm gen removal
never
parents: 2357
diff changeset
2430
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2431 const char* InstanceKlass::signature_name() const {
12995
e64f1fe9756b 8024423: JVMTI: GetLoadedClasses doesn't enumerate anonymous classes
farvidsson
parents: 12946
diff changeset
2432 int hash_len = 0;
e64f1fe9756b 8024423: JVMTI: GetLoadedClasses doesn't enumerate anonymous classes
farvidsson
parents: 12946
diff changeset
2433 char hash_buf[40];
e64f1fe9756b 8024423: JVMTI: GetLoadedClasses doesn't enumerate anonymous classes
farvidsson
parents: 12946
diff changeset
2434
e64f1fe9756b 8024423: JVMTI: GetLoadedClasses doesn't enumerate anonymous classes
farvidsson
parents: 12946
diff changeset
2435 // If this is an anonymous class, append a hash to make the name unique
e64f1fe9756b 8024423: JVMTI: GetLoadedClasses doesn't enumerate anonymous classes
farvidsson
parents: 12946
diff changeset
2436 if (is_anonymous()) {
e64f1fe9756b 8024423: JVMTI: GetLoadedClasses doesn't enumerate anonymous classes
farvidsson
parents: 12946
diff changeset
2437 assert(EnableInvokeDynamic, "EnableInvokeDynamic was not set.");
e64f1fe9756b 8024423: JVMTI: GetLoadedClasses doesn't enumerate anonymous classes
farvidsson
parents: 12946
diff changeset
2438 intptr_t hash = (java_mirror() != NULL) ? java_mirror()->identity_hash() : 0;
e64f1fe9756b 8024423: JVMTI: GetLoadedClasses doesn't enumerate anonymous classes
farvidsson
parents: 12946
diff changeset
2439 sprintf(hash_buf, "/" UINTX_FORMAT, (uintx)hash);
e64f1fe9756b 8024423: JVMTI: GetLoadedClasses doesn't enumerate anonymous classes
farvidsson
parents: 12946
diff changeset
2440 hash_len = (int)strlen(hash_buf);
e64f1fe9756b 8024423: JVMTI: GetLoadedClasses doesn't enumerate anonymous classes
farvidsson
parents: 12946
diff changeset
2441 }
e64f1fe9756b 8024423: JVMTI: GetLoadedClasses doesn't enumerate anonymous classes
farvidsson
parents: 12946
diff changeset
2442
e64f1fe9756b 8024423: JVMTI: GetLoadedClasses doesn't enumerate anonymous classes
farvidsson
parents: 12946
diff changeset
2443 // Get the internal name as a c string
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2444 const char* src = (const char*) (name()->as_C_string());
a61af66fc99e Initial load
duke
parents:
diff changeset
2445 const int src_length = (int)strlen(src);
12995
e64f1fe9756b 8024423: JVMTI: GetLoadedClasses doesn't enumerate anonymous classes
farvidsson
parents: 12946
diff changeset
2446
e64f1fe9756b 8024423: JVMTI: GetLoadedClasses doesn't enumerate anonymous classes
farvidsson
parents: 12946
diff changeset
2447 char* dest = NEW_RESOURCE_ARRAY(char, src_length + hash_len + 3);
e64f1fe9756b 8024423: JVMTI: GetLoadedClasses doesn't enumerate anonymous classes
farvidsson
parents: 12946
diff changeset
2448
e64f1fe9756b 8024423: JVMTI: GetLoadedClasses doesn't enumerate anonymous classes
farvidsson
parents: 12946
diff changeset
2449 // Add L as type indicator
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2450 int dest_index = 0;
a61af66fc99e Initial load
duke
parents:
diff changeset
2451 dest[dest_index++] = 'L';
12995
e64f1fe9756b 8024423: JVMTI: GetLoadedClasses doesn't enumerate anonymous classes
farvidsson
parents: 12946
diff changeset
2452
e64f1fe9756b 8024423: JVMTI: GetLoadedClasses doesn't enumerate anonymous classes
farvidsson
parents: 12946
diff changeset
2453 // Add the actual class name
e64f1fe9756b 8024423: JVMTI: GetLoadedClasses doesn't enumerate anonymous classes
farvidsson
parents: 12946
diff changeset
2454 for (int src_index = 0; src_index < src_length; ) {
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2455 dest[dest_index++] = src[src_index++];
a61af66fc99e Initial load
duke
parents:
diff changeset
2456 }
12995
e64f1fe9756b 8024423: JVMTI: GetLoadedClasses doesn't enumerate anonymous classes
farvidsson
parents: 12946
diff changeset
2457
e64f1fe9756b 8024423: JVMTI: GetLoadedClasses doesn't enumerate anonymous classes
farvidsson
parents: 12946
diff changeset
2458 // If we have a hash, append it
e64f1fe9756b 8024423: JVMTI: GetLoadedClasses doesn't enumerate anonymous classes
farvidsson
parents: 12946
diff changeset
2459 for (int hash_index = 0; hash_index < hash_len; ) {
e64f1fe9756b 8024423: JVMTI: GetLoadedClasses doesn't enumerate anonymous classes
farvidsson
parents: 12946
diff changeset
2460 dest[dest_index++] = hash_buf[hash_index++];
e64f1fe9756b 8024423: JVMTI: GetLoadedClasses doesn't enumerate anonymous classes
farvidsson
parents: 12946
diff changeset
2461 }
e64f1fe9756b 8024423: JVMTI: GetLoadedClasses doesn't enumerate anonymous classes
farvidsson
parents: 12946
diff changeset
2462
e64f1fe9756b 8024423: JVMTI: GetLoadedClasses doesn't enumerate anonymous classes
farvidsson
parents: 12946
diff changeset
2463 // Add the semicolon and the NULL
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2464 dest[dest_index++] = ';';
a61af66fc99e Initial load
duke
parents:
diff changeset
2465 dest[dest_index] = '\0';
a61af66fc99e Initial load
duke
parents:
diff changeset
2466 return dest;
a61af66fc99e Initial load
duke
parents:
diff changeset
2467 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2468
a61af66fc99e Initial load
duke
parents:
diff changeset
2469 // different verisons of is_same_class_package
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2470 bool InstanceKlass::is_same_class_package(Klass* class2) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2471 Klass* class1 = this;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2472 oop classloader1 = InstanceKlass::cast(class1)->class_loader();
6983
070d523b96a7 8001471: Klass::cast() does nothing
hseigel
parents: 6934
diff changeset
2473 Symbol* classname1 = class1->name();
070d523b96a7 8001471: Klass::cast() does nothing
hseigel
parents: 6934
diff changeset
2474
070d523b96a7 8001471: Klass::cast() does nothing
hseigel
parents: 6934
diff changeset
2475 if (class2->oop_is_objArray()) {
6831
d8ce2825b193 8000213: NPG: Should have renamed arrayKlass and typeArrayKlass
coleenp
parents: 6735
diff changeset
2476 class2 = ObjArrayKlass::cast(class2)->bottom_klass();
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2477 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2478 oop classloader2;
6983
070d523b96a7 8001471: Klass::cast() does nothing
hseigel
parents: 6934
diff changeset
2479 if (class2->oop_is_instance()) {
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2480 classloader2 = InstanceKlass::cast(class2)->class_loader();
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2481 } else {
6983
070d523b96a7 8001471: Klass::cast() does nothing
hseigel
parents: 6934
diff changeset
2482 assert(class2->oop_is_typeArray(), "should be type array");
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2483 classloader2 = NULL;
a61af66fc99e Initial load
duke
parents:
diff changeset
2484 }
6983
070d523b96a7 8001471: Klass::cast() does nothing
hseigel
parents: 6934
diff changeset
2485 Symbol* classname2 = class2->name();
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2486
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2487 return InstanceKlass::is_same_class_package(classloader1, classname1,
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2488 classloader2, classname2);
a61af66fc99e Initial load
duke
parents:
diff changeset
2489 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2490
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2491 bool InstanceKlass::is_same_class_package(oop classloader2, Symbol* classname2) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2492 Klass* class1 = this;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2493 oop classloader1 = InstanceKlass::cast(class1)->class_loader();
6983
070d523b96a7 8001471: Klass::cast() does nothing
hseigel
parents: 6934
diff changeset
2494 Symbol* classname1 = class1->name();
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2495
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2496 return InstanceKlass::is_same_class_package(classloader1, classname1,
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2497 classloader2, classname2);
a61af66fc99e Initial load
duke
parents:
diff changeset
2498 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2499
a61af66fc99e Initial load
duke
parents:
diff changeset
2500 // return true if two classes are in the same package, classloader
a61af66fc99e Initial load
duke
parents:
diff changeset
2501 // and classname information is enough to determine a class's package
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2502 bool InstanceKlass::is_same_class_package(oop class_loader1, Symbol* class_name1,
2177
3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 1972
diff changeset
2503 oop class_loader2, Symbol* class_name2) {
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2504 if (class_loader1 != class_loader2) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2505 return false;
665
c89f86385056 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 605
diff changeset
2506 } else if (class_name1 == class_name2) {
c89f86385056 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 605
diff changeset
2507 return true; // skip painful bytewise comparison
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2508 } else {
a61af66fc99e Initial load
duke
parents:
diff changeset
2509 ResourceMark rm;
a61af66fc99e Initial load
duke
parents:
diff changeset
2510
2177
3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 1972
diff changeset
2511 // The Symbol*'s are in UTF8 encoding. Since we only need to check explicitly
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2512 // for ASCII characters ('/', 'L', '['), we can keep them in UTF8 encoding.
a61af66fc99e Initial load
duke
parents:
diff changeset
2513 // Otherwise, we just compare jbyte values between the strings.
2177
3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 1972
diff changeset
2514 const jbyte *name1 = class_name1->base();
3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 1972
diff changeset
2515 const jbyte *name2 = class_name2->base();
3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 1972
diff changeset
2516
3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 1972
diff changeset
2517 const jbyte *last_slash1 = UTF8::strrchr(name1, class_name1->utf8_length(), '/');
3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 1972
diff changeset
2518 const jbyte *last_slash2 = UTF8::strrchr(name2, class_name2->utf8_length(), '/');
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2519
a61af66fc99e Initial load
duke
parents:
diff changeset
2520 if ((last_slash1 == NULL) || (last_slash2 == NULL)) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2521 // One of the two doesn't have a package. Only return true
a61af66fc99e Initial load
duke
parents:
diff changeset
2522 // if the other one also doesn't have a package.
a61af66fc99e Initial load
duke
parents:
diff changeset
2523 return last_slash1 == last_slash2;
a61af66fc99e Initial load
duke
parents:
diff changeset
2524 } else {
a61af66fc99e Initial load
duke
parents:
diff changeset
2525 // Skip over '['s
a61af66fc99e Initial load
duke
parents:
diff changeset
2526 if (*name1 == '[') {
a61af66fc99e Initial load
duke
parents:
diff changeset
2527 do {
a61af66fc99e Initial load
duke
parents:
diff changeset
2528 name1++;
a61af66fc99e Initial load
duke
parents:
diff changeset
2529 } while (*name1 == '[');
a61af66fc99e Initial load
duke
parents:
diff changeset
2530 if (*name1 != 'L') {
a61af66fc99e Initial load
duke
parents:
diff changeset
2531 // Something is terribly wrong. Shouldn't be here.
a61af66fc99e Initial load
duke
parents:
diff changeset
2532 return false;
a61af66fc99e Initial load
duke
parents:
diff changeset
2533 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2534 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2535 if (*name2 == '[') {
a61af66fc99e Initial load
duke
parents:
diff changeset
2536 do {
a61af66fc99e Initial load
duke
parents:
diff changeset
2537 name2++;
a61af66fc99e Initial load
duke
parents:
diff changeset
2538 } while (*name2 == '[');
a61af66fc99e Initial load
duke
parents:
diff changeset
2539 if (*name2 != 'L') {
a61af66fc99e Initial load
duke
parents:
diff changeset
2540 // Something is terribly wrong. Shouldn't be here.
a61af66fc99e Initial load
duke
parents:
diff changeset
2541 return false;
a61af66fc99e Initial load
duke
parents:
diff changeset
2542 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2543 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2544
a61af66fc99e Initial load
duke
parents:
diff changeset
2545 // Check that package part is identical
a61af66fc99e Initial load
duke
parents:
diff changeset
2546 int length1 = last_slash1 - name1;
a61af66fc99e Initial load
duke
parents:
diff changeset
2547 int length2 = last_slash2 - name2;
a61af66fc99e Initial load
duke
parents:
diff changeset
2548
a61af66fc99e Initial load
duke
parents:
diff changeset
2549 return UTF8::equal(name1, length1, name2, length2);
a61af66fc99e Initial load
duke
parents:
diff changeset
2550 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2551 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2552 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2553
652
4aaa9f5e02a8 4766230: Hotspot vtable inconsistencies cause core dumps. 6579515. 6582242.
acorn
parents: 605
diff changeset
2554 // Returns true iff super_method can be overridden by a method in targetclassname
4aaa9f5e02a8 4766230: Hotspot vtable inconsistencies cause core dumps. 6579515. 6582242.
acorn
parents: 605
diff changeset
2555 // See JSL 3rd edition 8.4.6.1
4aaa9f5e02a8 4766230: Hotspot vtable inconsistencies cause core dumps. 6579515. 6582242.
acorn
parents: 605
diff changeset
2556 // Assumes name-signature match
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2557 // "this" is InstanceKlass of super_method which must exist
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2558 // note that the InstanceKlass of the method in the targetclassname has not always been created yet
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2559 bool InstanceKlass::is_override(methodHandle super_method, Handle targetclassloader, Symbol* targetclassname, TRAPS) {
652
4aaa9f5e02a8 4766230: Hotspot vtable inconsistencies cause core dumps. 6579515. 6582242.
acorn
parents: 605
diff changeset
2560 // Private methods can not be overridden
4aaa9f5e02a8 4766230: Hotspot vtable inconsistencies cause core dumps. 6579515. 6582242.
acorn
parents: 605
diff changeset
2561 if (super_method->is_private()) {
4aaa9f5e02a8 4766230: Hotspot vtable inconsistencies cause core dumps. 6579515. 6582242.
acorn
parents: 605
diff changeset
2562 return false;
4aaa9f5e02a8 4766230: Hotspot vtable inconsistencies cause core dumps. 6579515. 6582242.
acorn
parents: 605
diff changeset
2563 }
4aaa9f5e02a8 4766230: Hotspot vtable inconsistencies cause core dumps. 6579515. 6582242.
acorn
parents: 605
diff changeset
2564 // If super method is accessible, then override
4aaa9f5e02a8 4766230: Hotspot vtable inconsistencies cause core dumps. 6579515. 6582242.
acorn
parents: 605
diff changeset
2565 if ((super_method->is_protected()) ||
4aaa9f5e02a8 4766230: Hotspot vtable inconsistencies cause core dumps. 6579515. 6582242.
acorn
parents: 605
diff changeset
2566 (super_method->is_public())) {
4aaa9f5e02a8 4766230: Hotspot vtable inconsistencies cause core dumps. 6579515. 6582242.
acorn
parents: 605
diff changeset
2567 return true;
4aaa9f5e02a8 4766230: Hotspot vtable inconsistencies cause core dumps. 6579515. 6582242.
acorn
parents: 605
diff changeset
2568 }
4aaa9f5e02a8 4766230: Hotspot vtable inconsistencies cause core dumps. 6579515. 6582242.
acorn
parents: 605
diff changeset
2569 // Package-private methods are not inherited outside of package
4aaa9f5e02a8 4766230: Hotspot vtable inconsistencies cause core dumps. 6579515. 6582242.
acorn
parents: 605
diff changeset
2570 assert(super_method->is_package_private(), "must be package private");
2177
3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 1972
diff changeset
2571 return(is_same_class_package(targetclassloader(), targetclassname));
652
4aaa9f5e02a8 4766230: Hotspot vtable inconsistencies cause core dumps. 6579515. 6582242.
acorn
parents: 605
diff changeset
2572 }
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2573
665
c89f86385056 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 605
diff changeset
2574 /* defined for now in jvm.cpp, for historical reasons *--
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2575 Klass* InstanceKlass::compute_enclosing_class_impl(instanceKlassHandle self,
2177
3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 1972
diff changeset
2576 Symbol*& simple_name_result, TRAPS) {
665
c89f86385056 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 605
diff changeset
2577 ...
c89f86385056 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 605
diff changeset
2578 }
c89f86385056 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 605
diff changeset
2579 */
c89f86385056 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 605
diff changeset
2580
c89f86385056 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 605
diff changeset
2581 // tell if two classes have the same enclosing class (at package level)
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2582 bool InstanceKlass::is_same_package_member_impl(instanceKlassHandle class1,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2583 Klass* class2_oop, TRAPS) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2584 if (class2_oop == class1()) return true;
6983
070d523b96a7 8001471: Klass::cast() does nothing
hseigel
parents: 6934
diff changeset
2585 if (!class2_oop->oop_is_instance()) return false;
665
c89f86385056 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 605
diff changeset
2586 instanceKlassHandle class2(THREAD, class2_oop);
c89f86385056 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 605
diff changeset
2587
c89f86385056 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 605
diff changeset
2588 // must be in same package before we try anything else
c89f86385056 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 605
diff changeset
2589 if (!class1->is_same_class_package(class2->class_loader(), class2->name()))
c89f86385056 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 605
diff changeset
2590 return false;
c89f86385056 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 605
diff changeset
2591
c89f86385056 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 605
diff changeset
2592 // As long as there is an outer1.getEnclosingClass,
c89f86385056 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 605
diff changeset
2593 // shift the search outward.
c89f86385056 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 605
diff changeset
2594 instanceKlassHandle outer1 = class1;
c89f86385056 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 605
diff changeset
2595 for (;;) {
c89f86385056 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 605
diff changeset
2596 // As we walk along, look for equalities between outer1 and class2.
c89f86385056 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 605
diff changeset
2597 // Eventually, the walks will terminate as outer1 stops
c89f86385056 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 605
diff changeset
2598 // at the top-level class around the original class.
1126
933a3e806ce6 6895168: JCK api/signaturetest/sigtest.basic.html#basic test fails for jdk 5.0 with HS 16 in nightly build
xlu
parents: 1039
diff changeset
2599 bool ignore_inner_is_member;
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2600 Klass* next = outer1->compute_enclosing_class(&ignore_inner_is_member,
1126
933a3e806ce6 6895168: JCK api/signaturetest/sigtest.basic.html#basic test fails for jdk 5.0 with HS 16 in nightly build
xlu
parents: 1039
diff changeset
2601 CHECK_false);
665
c89f86385056 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 605
diff changeset
2602 if (next == NULL) break;
c89f86385056 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 605
diff changeset
2603 if (next == class2()) return true;
c89f86385056 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 605
diff changeset
2604 outer1 = instanceKlassHandle(THREAD, next);
c89f86385056 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 605
diff changeset
2605 }
c89f86385056 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 605
diff changeset
2606
c89f86385056 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 605
diff changeset
2607 // Now do the same for class2.
c89f86385056 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 605
diff changeset
2608 instanceKlassHandle outer2 = class2;
c89f86385056 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 605
diff changeset
2609 for (;;) {
1126
933a3e806ce6 6895168: JCK api/signaturetest/sigtest.basic.html#basic test fails for jdk 5.0 with HS 16 in nightly build
xlu
parents: 1039
diff changeset
2610 bool ignore_inner_is_member;
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2611 Klass* next = outer2->compute_enclosing_class(&ignore_inner_is_member,
1126
933a3e806ce6 6895168: JCK api/signaturetest/sigtest.basic.html#basic test fails for jdk 5.0 with HS 16 in nightly build
xlu
parents: 1039
diff changeset
2612 CHECK_false);
665
c89f86385056 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 605
diff changeset
2613 if (next == NULL) break;
c89f86385056 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 605
diff changeset
2614 // Might as well check the new outer against all available values.
c89f86385056 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 605
diff changeset
2615 if (next == class1()) return true;
c89f86385056 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 605
diff changeset
2616 if (next == outer1()) return true;
c89f86385056 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 605
diff changeset
2617 outer2 = instanceKlassHandle(THREAD, next);
c89f86385056 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 605
diff changeset
2618 }
c89f86385056 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 605
diff changeset
2619
c89f86385056 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 605
diff changeset
2620 // If by this point we have not found an equality between the
c89f86385056 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 605
diff changeset
2621 // two classes, we know they are in separate package members.
c89f86385056 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 605
diff changeset
2622 return false;
c89f86385056 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 605
diff changeset
2623 }
c89f86385056 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 605
diff changeset
2624
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2625
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2626 jint InstanceKlass::compute_modifier_flags(TRAPS) const {
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2627 jint access = access_flags().as_int();
a61af66fc99e Initial load
duke
parents:
diff changeset
2628
a61af66fc99e Initial load
duke
parents:
diff changeset
2629 // But check if it happens to be member class.
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2630 instanceKlassHandle ik(THREAD, this);
5967
f7c4174b33ba 7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents: 4739
diff changeset
2631 InnerClassesIterator iter(ik);
f7c4174b33ba 7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents: 4739
diff changeset
2632 for (; !iter.done(); iter.next()) {
f7c4174b33ba 7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents: 4739
diff changeset
2633 int ioff = iter.inner_class_info_index();
f7c4174b33ba 7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents: 4739
diff changeset
2634 // Inner class attribute can be zero, skip it.
f7c4174b33ba 7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents: 4739
diff changeset
2635 // Strange but true: JVM spec. allows null inner class refs.
f7c4174b33ba 7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents: 4739
diff changeset
2636 if (ioff == 0) continue;
f7c4174b33ba 7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents: 4739
diff changeset
2637
f7c4174b33ba 7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents: 4739
diff changeset
2638 // only look at classes that are already loaded
f7c4174b33ba 7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents: 4739
diff changeset
2639 // since we are looking for the flags for our self.
f7c4174b33ba 7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents: 4739
diff changeset
2640 Symbol* inner_name = ik->constants()->klass_name_at(ioff);
f7c4174b33ba 7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents: 4739
diff changeset
2641 if ((ik->name() == inner_name)) {
f7c4174b33ba 7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents: 4739
diff changeset
2642 // This is really a member class.
f7c4174b33ba 7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents: 4739
diff changeset
2643 access = iter.inner_access_flags();
f7c4174b33ba 7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents: 4739
diff changeset
2644 break;
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2645 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2646 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2647 // Remember to strip ACC_SUPER bit
a61af66fc99e Initial load
duke
parents:
diff changeset
2648 return (access & (~JVM_ACC_SUPER)) & JVM_ACC_WRITTEN_FLAGS;
a61af66fc99e Initial load
duke
parents:
diff changeset
2649 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2650
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2651 jint InstanceKlass::jvmti_class_status() const {
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2652 jint result = 0;
a61af66fc99e Initial load
duke
parents:
diff changeset
2653
a61af66fc99e Initial load
duke
parents:
diff changeset
2654 if (is_linked()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2655 result |= JVMTI_CLASS_STATUS_VERIFIED | JVMTI_CLASS_STATUS_PREPARED;
a61af66fc99e Initial load
duke
parents:
diff changeset
2656 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2657
a61af66fc99e Initial load
duke
parents:
diff changeset
2658 if (is_initialized()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2659 assert(is_linked(), "Class status is not consistent");
a61af66fc99e Initial load
duke
parents:
diff changeset
2660 result |= JVMTI_CLASS_STATUS_INITIALIZED;
a61af66fc99e Initial load
duke
parents:
diff changeset
2661 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2662 if (is_in_error_state()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2663 result |= JVMTI_CLASS_STATUS_ERROR;
a61af66fc99e Initial load
duke
parents:
diff changeset
2664 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2665 return result;
a61af66fc99e Initial load
duke
parents:
diff changeset
2666 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2667
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2668 Method* InstanceKlass::method_at_itable(Klass* holder, int index, TRAPS) {
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2669 itableOffsetEntry* ioe = (itableOffsetEntry*)start_of_itable();
a61af66fc99e Initial load
duke
parents:
diff changeset
2670 int method_table_offset_in_words = ioe->offset()/wordSize;
a61af66fc99e Initial load
duke
parents:
diff changeset
2671 int nof_interfaces = (method_table_offset_in_words - itable_offset_in_words())
a61af66fc99e Initial load
duke
parents:
diff changeset
2672 / itableOffsetEntry::size();
a61af66fc99e Initial load
duke
parents:
diff changeset
2673
a61af66fc99e Initial load
duke
parents:
diff changeset
2674 for (int cnt = 0 ; ; cnt ++, ioe ++) {
605
98cb887364d3 6810672: Comment typos
twisti
parents: 356
diff changeset
2675 // If the interface isn't implemented by the receiver class,
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2676 // the VM should throw IncompatibleClassChangeError.
a61af66fc99e Initial load
duke
parents:
diff changeset
2677 if (cnt >= nof_interfaces) {
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2678 THROW_NULL(vmSymbols::java_lang_IncompatibleClassChangeError());
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2679 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2680
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2681 Klass* ik = ioe->interface_klass();
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2682 if (ik == holder) break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2683 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2684
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2685 itableMethodEntry* ime = ioe->first_method_entry(this);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2686 Method* m = ime[index].method();
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2687 if (m == NULL) {
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2688 THROW_NULL(vmSymbols::java_lang_AbstractMethodError());
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2689 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2690 return m;
a61af66fc99e Initial load
duke
parents:
diff changeset
2691 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2692
12823
ac9cb1d5a202 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 12811
diff changeset
2693
ac9cb1d5a202 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 12811
diff changeset
2694 #if INCLUDE_JVMTI
ac9cb1d5a202 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 12811
diff changeset
2695 // update default_methods for redefineclasses for methods that are
ac9cb1d5a202 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 12811
diff changeset
2696 // not yet in the vtable due to concurrent subclass define and superinterface
ac9cb1d5a202 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 12811
diff changeset
2697 // redefinition
ac9cb1d5a202 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 12811
diff changeset
2698 // Note: those in the vtable, should have been updated via adjust_method_entries
ac9cb1d5a202 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 12811
diff changeset
2699 void InstanceKlass::adjust_default_methods(Method** old_methods, Method** new_methods,
ac9cb1d5a202 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 12811
diff changeset
2700 int methods_length, bool* trace_name_printed) {
ac9cb1d5a202 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 12811
diff changeset
2701 // search the default_methods for uses of either obsolete or EMCP methods
ac9cb1d5a202 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 12811
diff changeset
2702 if (default_methods() != NULL) {
ac9cb1d5a202 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 12811
diff changeset
2703 for (int j = 0; j < methods_length; j++) {
ac9cb1d5a202 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 12811
diff changeset
2704 Method* old_method = old_methods[j];
ac9cb1d5a202 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 12811
diff changeset
2705 Method* new_method = new_methods[j];
ac9cb1d5a202 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 12811
diff changeset
2706
ac9cb1d5a202 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 12811
diff changeset
2707 for (int index = 0; index < default_methods()->length(); index ++) {
ac9cb1d5a202 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 12811
diff changeset
2708 if (default_methods()->at(index) == old_method) {
ac9cb1d5a202 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 12811
diff changeset
2709 default_methods()->at_put(index, new_method);
ac9cb1d5a202 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 12811
diff changeset
2710 if (RC_TRACE_IN_RANGE(0x00100000, 0x00400000)) {
ac9cb1d5a202 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 12811
diff changeset
2711 if (!(*trace_name_printed)) {
ac9cb1d5a202 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 12811
diff changeset
2712 // RC_TRACE_MESG macro has an embedded ResourceMark
ac9cb1d5a202 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 12811
diff changeset
2713 RC_TRACE_MESG(("adjust: klassname=%s default methods from name=%s",
ac9cb1d5a202 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 12811
diff changeset
2714 external_name(),
ac9cb1d5a202 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 12811
diff changeset
2715 old_method->method_holder()->external_name()));
ac9cb1d5a202 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 12811
diff changeset
2716 *trace_name_printed = true;
ac9cb1d5a202 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 12811
diff changeset
2717 }
ac9cb1d5a202 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 12811
diff changeset
2718 RC_TRACE(0x00100000, ("default method update: %s(%s) ",
ac9cb1d5a202 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 12811
diff changeset
2719 new_method->name()->as_C_string(),
ac9cb1d5a202 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 12811
diff changeset
2720 new_method->signature()->as_C_string()));
ac9cb1d5a202 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 12811
diff changeset
2721 }
ac9cb1d5a202 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 12811
diff changeset
2722 }
ac9cb1d5a202 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 12811
diff changeset
2723 }
ac9cb1d5a202 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 12811
diff changeset
2724 }
ac9cb1d5a202 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 12811
diff changeset
2725 }
ac9cb1d5a202 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 12811
diff changeset
2726 }
ac9cb1d5a202 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 12811
diff changeset
2727 #endif // INCLUDE_JVMTI
ac9cb1d5a202 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 12811
diff changeset
2728
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2729 // On-stack replacement stuff
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2730 void InstanceKlass::add_osr_nmethod(nmethod* n) {
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2731 // only one compilation can be active
a61af66fc99e Initial load
duke
parents:
diff changeset
2732 NEEDS_CLEANUP
a61af66fc99e Initial load
duke
parents:
diff changeset
2733 // This is a short non-blocking critical region, so the no safepoint check is ok.
a61af66fc99e Initial load
duke
parents:
diff changeset
2734 OsrList_lock->lock_without_safepoint_check();
a61af66fc99e Initial load
duke
parents:
diff changeset
2735 assert(n->is_osr_method(), "wrong kind of nmethod");
989
148e5441d916 6863023: need non-perm oops in code cache for JSR 292
jrose
parents: 876
diff changeset
2736 n->set_osr_link(osr_nmethods_head());
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2737 set_osr_nmethods_head(n);
1783
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1751
diff changeset
2738 // Raise the highest osr level if necessary
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1751
diff changeset
2739 if (TieredCompilation) {
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2740 Method* m = n->method();
1783
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1751
diff changeset
2741 m->set_highest_osr_comp_level(MAX2(m->highest_osr_comp_level(), n->comp_level()));
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1751
diff changeset
2742 }
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2743 // Remember to unlock again
a61af66fc99e Initial load
duke
parents:
diff changeset
2744 OsrList_lock->unlock();
1783
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1751
diff changeset
2745
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1751
diff changeset
2746 // Get rid of the osr methods for the same bci that have lower levels.
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1751
diff changeset
2747 if (TieredCompilation) {
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1751
diff changeset
2748 for (int l = CompLevel_limited_profile; l < n->comp_level(); l++) {
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1751
diff changeset
2749 nmethod *inv = lookup_osr_nmethod(n->method(), n->osr_entry_bci(), l, true);
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1751
diff changeset
2750 if (inv != NULL && inv->is_in_use()) {
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1751
diff changeset
2751 inv->make_not_entrant();
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1751
diff changeset
2752 }
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1751
diff changeset
2753 }
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1751
diff changeset
2754 }
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2755 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2756
a61af66fc99e Initial load
duke
parents:
diff changeset
2757
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2758 void InstanceKlass::remove_osr_nmethod(nmethod* n) {
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2759 // This is a short non-blocking critical region, so the no safepoint check is ok.
a61af66fc99e Initial load
duke
parents:
diff changeset
2760 OsrList_lock->lock_without_safepoint_check();
a61af66fc99e Initial load
duke
parents:
diff changeset
2761 assert(n->is_osr_method(), "wrong kind of nmethod");
a61af66fc99e Initial load
duke
parents:
diff changeset
2762 nmethod* last = NULL;
a61af66fc99e Initial load
duke
parents:
diff changeset
2763 nmethod* cur = osr_nmethods_head();
1783
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1751
diff changeset
2764 int max_level = CompLevel_none; // Find the max comp level excluding n
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2765 Method* m = n->method();
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2766 // Search for match
a61af66fc99e Initial load
duke
parents:
diff changeset
2767 while(cur != NULL && cur != n) {
1783
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1751
diff changeset
2768 if (TieredCompilation) {
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1751
diff changeset
2769 // Find max level before n
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1751
diff changeset
2770 max_level = MAX2(max_level, cur->comp_level());
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1751
diff changeset
2771 }
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2772 last = cur;
989
148e5441d916 6863023: need non-perm oops in code cache for JSR 292
jrose
parents: 876
diff changeset
2773 cur = cur->osr_link();
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2774 }
1783
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1751
diff changeset
2775 nmethod* next = NULL;
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2776 if (cur == n) {
1783
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1751
diff changeset
2777 next = cur->osr_link();
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2778 if (last == NULL) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2779 // Remove first element
1783
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1751
diff changeset
2780 set_osr_nmethods_head(next);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2781 } else {
1783
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1751
diff changeset
2782 last->set_osr_link(next);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2783 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2784 }
989
148e5441d916 6863023: need non-perm oops in code cache for JSR 292
jrose
parents: 876
diff changeset
2785 n->set_osr_link(NULL);
1783
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1751
diff changeset
2786 if (TieredCompilation) {
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1751
diff changeset
2787 cur = next;
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1751
diff changeset
2788 while (cur != NULL) {
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1751
diff changeset
2789 // Find max level after n
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1751
diff changeset
2790 max_level = MAX2(max_level, cur->comp_level());
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1751
diff changeset
2791 cur = cur->osr_link();
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1751
diff changeset
2792 }
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1751
diff changeset
2793 m->set_highest_osr_comp_level(max_level);
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1751
diff changeset
2794 }
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2795 // Remember to unlock again
a61af66fc99e Initial load
duke
parents:
diff changeset
2796 OsrList_lock->unlock();
a61af66fc99e Initial load
duke
parents:
diff changeset
2797 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2798
10265
92ef81e2f571 8003557: NPG: Klass* const k should be const Klass* k.
minqi
parents: 10152
diff changeset
2799 nmethod* InstanceKlass::lookup_osr_nmethod(const Method* m, int bci, int comp_level, bool match_level) const {
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2800 // This is a short non-blocking critical region, so the no safepoint check is ok.
a61af66fc99e Initial load
duke
parents:
diff changeset
2801 OsrList_lock->lock_without_safepoint_check();
a61af66fc99e Initial load
duke
parents:
diff changeset
2802 nmethod* osr = osr_nmethods_head();
1783
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1751
diff changeset
2803 nmethod* best = NULL;
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2804 while (osr != NULL) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2805 assert(osr->is_osr_method(), "wrong kind of nmethod found in chain");
1783
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1751
diff changeset
2806 // There can be a time when a c1 osr method exists but we are waiting
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1751
diff changeset
2807 // for a c2 version. When c2 completes its osr nmethod we will trash
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1751
diff changeset
2808 // the c1 version and only be able to find the c2 version. However
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1751
diff changeset
2809 // while we overflow in the c1 code at back branches we don't want to
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1751
diff changeset
2810 // try and switch to the same code as we are already running
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1751
diff changeset
2811
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2812 if (osr->method() == m &&
a61af66fc99e Initial load
duke
parents:
diff changeset
2813 (bci == InvocationEntryBci || osr->osr_entry_bci() == bci)) {
1783
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1751
diff changeset
2814 if (match_level) {
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1751
diff changeset
2815 if (osr->comp_level() == comp_level) {
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1751
diff changeset
2816 // Found a match - return it.
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1751
diff changeset
2817 OsrList_lock->unlock();
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1751
diff changeset
2818 return osr;
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1751
diff changeset
2819 }
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1751
diff changeset
2820 } else {
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1751
diff changeset
2821 if (best == NULL || (osr->comp_level() > best->comp_level())) {
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1751
diff changeset
2822 if (osr->comp_level() == CompLevel_highest_tier) {
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1751
diff changeset
2823 // Found the best possible - return it.
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1751
diff changeset
2824 OsrList_lock->unlock();
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1751
diff changeset
2825 return osr;
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1751
diff changeset
2826 }
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1751
diff changeset
2827 best = osr;
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1751
diff changeset
2828 }
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1751
diff changeset
2829 }
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2830 }
989
148e5441d916 6863023: need non-perm oops in code cache for JSR 292
jrose
parents: 876
diff changeset
2831 osr = osr->osr_link();
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2832 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2833 OsrList_lock->unlock();
1783
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1751
diff changeset
2834 if (best != NULL && best->comp_level() >= comp_level && match_level == false) {
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1751
diff changeset
2835 return best;
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1751
diff changeset
2836 }
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2837 return NULL;
a61af66fc99e Initial load
duke
parents:
diff changeset
2838 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2839
10345
b7fa10a3a69a 8014288: perf regression in nashorn JDK-8008448.js test after 8008511 changes
sspitsyn
parents: 10343
diff changeset
2840 void InstanceKlass::add_member_name(int index, Handle mem_name) {
10133
6337ca4dcad8 8008511: JSR 292: MemberName vmtarget refs to methods must be updated at class redefinition
sspitsyn
parents: 9062
diff changeset
2841 jweak mem_name_wref = JNIHandles::make_weak_global(mem_name);
6337ca4dcad8 8008511: JSR 292: MemberName vmtarget refs to methods must be updated at class redefinition
sspitsyn
parents: 9062
diff changeset
2842 MutexLocker ml(MemberNameTable_lock);
10345
b7fa10a3a69a 8014288: perf regression in nashorn JDK-8008448.js test after 8008511 changes
sspitsyn
parents: 10343
diff changeset
2843 assert(0 <= index && index < idnum_allocated_count(), "index is out of bounds");
10133
6337ca4dcad8 8008511: JSR 292: MemberName vmtarget refs to methods must be updated at class redefinition
sspitsyn
parents: 9062
diff changeset
2844 DEBUG_ONLY(No_Safepoint_Verifier nsv);
6337ca4dcad8 8008511: JSR 292: MemberName vmtarget refs to methods must be updated at class redefinition
sspitsyn
parents: 9062
diff changeset
2845
6337ca4dcad8 8008511: JSR 292: MemberName vmtarget refs to methods must be updated at class redefinition
sspitsyn
parents: 9062
diff changeset
2846 if (_member_names == NULL) {
10345
b7fa10a3a69a 8014288: perf regression in nashorn JDK-8008448.js test after 8008511 changes
sspitsyn
parents: 10343
diff changeset
2847 _member_names = new (ResourceObj::C_HEAP, mtClass) MemberNameTable(idnum_allocated_count());
10133
6337ca4dcad8 8008511: JSR 292: MemberName vmtarget refs to methods must be updated at class redefinition
sspitsyn
parents: 9062
diff changeset
2848 }
10345
b7fa10a3a69a 8014288: perf regression in nashorn JDK-8008448.js test after 8008511 changes
sspitsyn
parents: 10343
diff changeset
2849 _member_names->add_member_name(index, mem_name_wref);
b7fa10a3a69a 8014288: perf regression in nashorn JDK-8008448.js test after 8008511 changes
sspitsyn
parents: 10343
diff changeset
2850 }
b7fa10a3a69a 8014288: perf regression in nashorn JDK-8008448.js test after 8008511 changes
sspitsyn
parents: 10343
diff changeset
2851
b7fa10a3a69a 8014288: perf regression in nashorn JDK-8008448.js test after 8008511 changes
sspitsyn
parents: 10343
diff changeset
2852 oop InstanceKlass::get_member_name(int index) {
b7fa10a3a69a 8014288: perf regression in nashorn JDK-8008448.js test after 8008511 changes
sspitsyn
parents: 10343
diff changeset
2853 MutexLocker ml(MemberNameTable_lock);
b7fa10a3a69a 8014288: perf regression in nashorn JDK-8008448.js test after 8008511 changes
sspitsyn
parents: 10343
diff changeset
2854 assert(0 <= index && index < idnum_allocated_count(), "index is out of bounds");
b7fa10a3a69a 8014288: perf regression in nashorn JDK-8008448.js test after 8008511 changes
sspitsyn
parents: 10343
diff changeset
2855 DEBUG_ONLY(No_Safepoint_Verifier nsv);
b7fa10a3a69a 8014288: perf regression in nashorn JDK-8008448.js test after 8008511 changes
sspitsyn
parents: 10343
diff changeset
2856
b7fa10a3a69a 8014288: perf regression in nashorn JDK-8008448.js test after 8008511 changes
sspitsyn
parents: 10343
diff changeset
2857 if (_member_names == NULL) {
b7fa10a3a69a 8014288: perf regression in nashorn JDK-8008448.js test after 8008511 changes
sspitsyn
parents: 10343
diff changeset
2858 return NULL;
b7fa10a3a69a 8014288: perf regression in nashorn JDK-8008448.js test after 8008511 changes
sspitsyn
parents: 10343
diff changeset
2859 }
b7fa10a3a69a 8014288: perf regression in nashorn JDK-8008448.js test after 8008511 changes
sspitsyn
parents: 10343
diff changeset
2860 oop mem_name =_member_names->get_member_name(index);
b7fa10a3a69a 8014288: perf regression in nashorn JDK-8008448.js test after 8008511 changes
sspitsyn
parents: 10343
diff changeset
2861 return mem_name;
10133
6337ca4dcad8 8008511: JSR 292: MemberName vmtarget refs to methods must be updated at class redefinition
sspitsyn
parents: 9062
diff changeset
2862 }
6337ca4dcad8 8008511: JSR 292: MemberName vmtarget refs to methods must be updated at class redefinition
sspitsyn
parents: 9062
diff changeset
2863
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2864 // -----------------------------------------------------------------------------------------------------
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2865 // Printing
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2866
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2867 #ifndef PRODUCT
a61af66fc99e Initial load
duke
parents:
diff changeset
2868
665
c89f86385056 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 605
diff changeset
2869 #define BULLET " - "
c89f86385056 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 605
diff changeset
2870
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2871 static const char* state_names[] = {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2872 "allocated", "loaded", "linked", "being_initialized", "fully_initialized", "initialization_error"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2873 };
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2874
12264
b2e698d2276c 8014013: CallInfo structure no longer accurately reports the result of a LinkResolver operation
drchase
parents: 12067
diff changeset
2875 static void print_vtable(intptr_t* start, int len, outputStream* st) {
b2e698d2276c 8014013: CallInfo structure no longer accurately reports the result of a LinkResolver operation
drchase
parents: 12067
diff changeset
2876 for (int i = 0; i < len; i++) {
b2e698d2276c 8014013: CallInfo structure no longer accurately reports the result of a LinkResolver operation
drchase
parents: 12067
diff changeset
2877 intptr_t e = start[i];
b2e698d2276c 8014013: CallInfo structure no longer accurately reports the result of a LinkResolver operation
drchase
parents: 12067
diff changeset
2878 st->print("%d : " INTPTR_FORMAT, i, e);
b2e698d2276c 8014013: CallInfo structure no longer accurately reports the result of a LinkResolver operation
drchase
parents: 12067
diff changeset
2879 if (e != 0 && ((Metadata*)e)->is_metaspace_object()) {
b2e698d2276c 8014013: CallInfo structure no longer accurately reports the result of a LinkResolver operation
drchase
parents: 12067
diff changeset
2880 st->print(" ");
b2e698d2276c 8014013: CallInfo structure no longer accurately reports the result of a LinkResolver operation
drchase
parents: 12067
diff changeset
2881 ((Metadata*)e)->print_value_on(st);
b2e698d2276c 8014013: CallInfo structure no longer accurately reports the result of a LinkResolver operation
drchase
parents: 12067
diff changeset
2882 }
b2e698d2276c 8014013: CallInfo structure no longer accurately reports the result of a LinkResolver operation
drchase
parents: 12067
diff changeset
2883 st->cr();
b2e698d2276c 8014013: CallInfo structure no longer accurately reports the result of a LinkResolver operation
drchase
parents: 12067
diff changeset
2884 }
b2e698d2276c 8014013: CallInfo structure no longer accurately reports the result of a LinkResolver operation
drchase
parents: 12067
diff changeset
2885 }
b2e698d2276c 8014013: CallInfo structure no longer accurately reports the result of a LinkResolver operation
drchase
parents: 12067
diff changeset
2886
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2887 void InstanceKlass::print_on(outputStream* st) const {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2888 assert(is_klass(), "must be klass");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2889 Klass::print_on(st);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2890
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2891 st->print(BULLET"instance size: %d", size_helper()); st->cr();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2892 st->print(BULLET"klass size: %d", size()); st->cr();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2893 st->print(BULLET"access: "); access_flags().print_on(st); st->cr();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2894 st->print(BULLET"state: "); st->print_cr(state_names[_init_state]);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2895 st->print(BULLET"name: "); name()->print_value_on(st); st->cr();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2896 st->print(BULLET"super: "); super()->print_value_on_maybe_null(st); st->cr();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2897 st->print(BULLET"sub: ");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2898 Klass* sub = subklass();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2899 int n;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2900 for (n = 0; sub != NULL; n++, sub = sub->next_sibling()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2901 if (n < MaxSubklassPrintSize) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2902 sub->print_value_on(st);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2903 st->print(" ");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2904 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2905 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2906 if (n >= MaxSubklassPrintSize) st->print("(%d more klasses...)", n - MaxSubklassPrintSize);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2907 st->cr();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2908
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2909 if (is_interface()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2910 st->print_cr(BULLET"nof implementors: %d", nof_implementors());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2911 if (nof_implementors() == 1) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2912 st->print_cr(BULLET"implementor: ");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2913 st->print(" ");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2914 implementor()->print_value_on(st);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2915 st->cr();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2916 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2917 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2918
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2919 st->print(BULLET"arrays: "); array_klasses()->print_value_on_maybe_null(st); st->cr();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2920 st->print(BULLET"methods: "); methods()->print_value_on(st); st->cr();
12264
b2e698d2276c 8014013: CallInfo structure no longer accurately reports the result of a LinkResolver operation
drchase
parents: 12067
diff changeset
2921 if (Verbose || WizardMode) {
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2922 Array<Method*>* method_array = methods();
12823
ac9cb1d5a202 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 12811
diff changeset
2923 for (int i = 0; i < method_array->length(); i++) {
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2924 st->print("%d : ", i); method_array->at(i)->print_value(); st->cr();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2925 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2926 }
12823
ac9cb1d5a202 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 12811
diff changeset
2927 st->print(BULLET"method ordering: "); method_ordering()->print_value_on(st); st->cr();
ac9cb1d5a202 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 12811
diff changeset
2928 st->print(BULLET"default_methods: "); default_methods()->print_value_on(st); st->cr();
ac9cb1d5a202 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 12811
diff changeset
2929 if (Verbose && default_methods() != NULL) {
ac9cb1d5a202 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 12811
diff changeset
2930 Array<Method*>* method_array = default_methods();
ac9cb1d5a202 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 12811
diff changeset
2931 for (int i = 0; i < method_array->length(); i++) {
ac9cb1d5a202 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 12811
diff changeset
2932 st->print("%d : ", i); method_array->at(i)->print_value(); st->cr();
ac9cb1d5a202 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 12811
diff changeset
2933 }
ac9cb1d5a202 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 12811
diff changeset
2934 }
ac9cb1d5a202 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 12811
diff changeset
2935 if (default_vtable_indices() != NULL) {
ac9cb1d5a202 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 12811
diff changeset
2936 st->print(BULLET"default vtable indices: "); default_vtable_indices()->print_value_on(st); st->cr();
ac9cb1d5a202 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 12811
diff changeset
2937 }
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2938 st->print(BULLET"local interfaces: "); local_interfaces()->print_value_on(st); st->cr();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2939 st->print(BULLET"trans. interfaces: "); transitive_interfaces()->print_value_on(st); st->cr();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2940 st->print(BULLET"constants: "); constants()->print_value_on(st); st->cr();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2941 if (class_loader_data() != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2942 st->print(BULLET"class loader data: ");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2943 class_loader_data()->print_value_on(st);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2944 st->cr();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2945 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2946 st->print(BULLET"host class: "); host_klass()->print_value_on_maybe_null(st); st->cr();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2947 if (source_file_name() != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2948 st->print(BULLET"source file: ");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2949 source_file_name()->print_value_on(st);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2950 st->cr();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2951 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2952 if (source_debug_extension() != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2953 st->print(BULLET"source debug extension: ");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2954 st->print("%s", source_debug_extension());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2955 st->cr();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2956 }
8031
927a311d00f9 8007320: NPG: move method annotations
coleenp
parents: 8003
diff changeset
2957 st->print(BULLET"class annotations: "); class_annotations()->print_value_on(st); st->cr();
927a311d00f9 8007320: NPG: move method annotations
coleenp
parents: 8003
diff changeset
2958 st->print(BULLET"class type annotations: "); class_type_annotations()->print_value_on(st); st->cr();
927a311d00f9 8007320: NPG: move method annotations
coleenp
parents: 8003
diff changeset
2959 st->print(BULLET"field annotations: "); fields_annotations()->print_value_on(st); st->cr();
927a311d00f9 8007320: NPG: move method annotations
coleenp
parents: 8003
diff changeset
2960 st->print(BULLET"field type annotations: "); fields_type_annotations()->print_value_on(st); st->cr();
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2961 {
12281
4f9a42c33738 8022887: Assertion hit while using class and redefining it with RedefineClasses simultaneously
coleenp
parents: 12067
diff changeset
2962 bool have_pv = false;
4f9a42c33738 8022887: Assertion hit while using class and redefining it with RedefineClasses simultaneously
coleenp
parents: 12067
diff changeset
2963 PreviousVersionWalker pvw(Thread::current(), (InstanceKlass*)this);
4f9a42c33738 8022887: Assertion hit while using class and redefining it with RedefineClasses simultaneously
coleenp
parents: 12067
diff changeset
2964 for (PreviousVersionNode * pv_node = pvw.next_previous_version();
4f9a42c33738 8022887: Assertion hit while using class and redefining it with RedefineClasses simultaneously
coleenp
parents: 12067
diff changeset
2965 pv_node != NULL; pv_node = pvw.next_previous_version()) {
4f9a42c33738 8022887: Assertion hit while using class and redefining it with RedefineClasses simultaneously
coleenp
parents: 12067
diff changeset
2966 if (!have_pv)
4f9a42c33738 8022887: Assertion hit while using class and redefining it with RedefineClasses simultaneously
coleenp
parents: 12067
diff changeset
2967 st->print(BULLET"previous version: ");
4f9a42c33738 8022887: Assertion hit while using class and redefining it with RedefineClasses simultaneously
coleenp
parents: 12067
diff changeset
2968 have_pv = true;
4f9a42c33738 8022887: Assertion hit while using class and redefining it with RedefineClasses simultaneously
coleenp
parents: 12067
diff changeset
2969 pv_node->prev_constant_pool()->print_value_on(st);
4f9a42c33738 8022887: Assertion hit while using class and redefining it with RedefineClasses simultaneously
coleenp
parents: 12067
diff changeset
2970 }
4f9a42c33738 8022887: Assertion hit while using class and redefining it with RedefineClasses simultaneously
coleenp
parents: 12067
diff changeset
2971 if (have_pv) st->cr();
4f9a42c33738 8022887: Assertion hit while using class and redefining it with RedefineClasses simultaneously
coleenp
parents: 12067
diff changeset
2972 } // pvw is cleaned up
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2973
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2974 if (generic_signature() != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2975 st->print(BULLET"generic signature: ");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2976 generic_signature()->print_value_on(st);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2977 st->cr();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2978 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2979 st->print(BULLET"inner classes: "); inner_classes()->print_value_on(st); st->cr();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2980 st->print(BULLET"java mirror: "); java_mirror()->print_value_on(st); st->cr();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2981 st->print(BULLET"vtable length %d (start addr: " INTPTR_FORMAT ")", vtable_length(), start_of_vtable()); st->cr();
12264
b2e698d2276c 8014013: CallInfo structure no longer accurately reports the result of a LinkResolver operation
drchase
parents: 12067
diff changeset
2982 if (vtable_length() > 0 && (Verbose || WizardMode)) print_vtable(start_of_vtable(), vtable_length(), st);
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2983 st->print(BULLET"itable length %d (start addr: " INTPTR_FORMAT ")", itable_length(), start_of_itable()); st->cr();
12264
b2e698d2276c 8014013: CallInfo structure no longer accurately reports the result of a LinkResolver operation
drchase
parents: 12067
diff changeset
2984 if (itable_length() > 0 && (Verbose || WizardMode)) print_vtable(start_of_itable(), itable_length(), st);
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2985 st->print_cr(BULLET"---- static fields (%d words):", static_field_size());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2986 FieldPrinter print_static_field(st);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2987 ((InstanceKlass*)this)->do_local_static_fields(&print_static_field);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2988 st->print_cr(BULLET"---- non-static fields (%d words):", nonstatic_field_size());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2989 FieldPrinter print_nonstatic_field(st);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2990 ((InstanceKlass*)this)->do_nonstatic_fields(&print_nonstatic_field);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2991
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2992 st->print(BULLET"non-static oop maps: ");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2993 OopMapBlock* map = start_of_nonstatic_oop_maps();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2994 OopMapBlock* end_map = map + nonstatic_oop_map_count();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2995 while (map < end_map) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2996 st->print("%d-%d ", map->offset(), map->offset() + heapOopSize*(map->count() - 1));
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2997 map++;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2998 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2999 st->cr();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3000 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3001
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3002 #endif //PRODUCT
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3003
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3004 void InstanceKlass::print_value_on(outputStream* st) const {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3005 assert(is_klass(), "must be klass");
12264
b2e698d2276c 8014013: CallInfo structure no longer accurately reports the result of a LinkResolver operation
drchase
parents: 12067
diff changeset
3006 if (Verbose || WizardMode) access_flags().print_on(st);
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3007 name()->print_value_on(st);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3008 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3009
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3010 #ifndef PRODUCT
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3011
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3012 void FieldPrinter::do_field(fieldDescriptor* fd) {
665
c89f86385056 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 605
diff changeset
3013 _st->print(BULLET);
2376
c7f3d0b4570f 7017732: move static fields into Class to prepare for perm gen removal
never
parents: 2357
diff changeset
3014 if (_obj == NULL) {
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3015 fd->print_on(_st);
a61af66fc99e Initial load
duke
parents:
diff changeset
3016 _st->cr();
a61af66fc99e Initial load
duke
parents:
diff changeset
3017 } else {
a61af66fc99e Initial load
duke
parents:
diff changeset
3018 fd->print_on_for(_st, _obj);
a61af66fc99e Initial load
duke
parents:
diff changeset
3019 _st->cr();
a61af66fc99e Initial load
duke
parents:
diff changeset
3020 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3021 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3022
a61af66fc99e Initial load
duke
parents:
diff changeset
3023
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3024 void InstanceKlass::oop_print_on(oop obj, outputStream* st) {
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3025 Klass::oop_print_on(obj, st);
a61af66fc99e Initial load
duke
parents:
diff changeset
3026
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3027 if (this == SystemDictionary::String_klass()) {
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3028 typeArrayOop value = java_lang_String::value(obj);
a61af66fc99e Initial load
duke
parents:
diff changeset
3029 juint offset = java_lang_String::offset(obj);
a61af66fc99e Initial load
duke
parents:
diff changeset
3030 juint length = java_lang_String::length(obj);
a61af66fc99e Initial load
duke
parents:
diff changeset
3031 if (value != NULL &&
a61af66fc99e Initial load
duke
parents:
diff changeset
3032 value->is_typeArray() &&
a61af66fc99e Initial load
duke
parents:
diff changeset
3033 offset <= (juint) value->length() &&
a61af66fc99e Initial load
duke
parents:
diff changeset
3034 offset + length <= (juint) value->length()) {
665
c89f86385056 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 605
diff changeset
3035 st->print(BULLET"string: ");
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3036 Handle h_obj(obj);
a61af66fc99e Initial load
duke
parents:
diff changeset
3037 java_lang_String::print(h_obj, st);
a61af66fc99e Initial load
duke
parents:
diff changeset
3038 st->cr();
a61af66fc99e Initial load
duke
parents:
diff changeset
3039 if (!WizardMode) return; // that is enough
a61af66fc99e Initial load
duke
parents:
diff changeset
3040 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3041 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3042
665
c89f86385056 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 605
diff changeset
3043 st->print_cr(BULLET"---- fields (total size %d words):", oop_size(obj));
2376
c7f3d0b4570f 7017732: move static fields into Class to prepare for perm gen removal
never
parents: 2357
diff changeset
3044 FieldPrinter print_field(st, obj);
c7f3d0b4570f 7017732: move static fields into Class to prepare for perm gen removal
never
parents: 2357
diff changeset
3045 do_nonstatic_fields(&print_field);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3046
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3047 if (this == SystemDictionary::Class_klass()) {
665
c89f86385056 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 605
diff changeset
3048 st->print(BULLET"signature: ");
c89f86385056 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 605
diff changeset
3049 java_lang_Class::print_signature(obj, st);
c89f86385056 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 605
diff changeset
3050 st->cr();
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3051 Klass* mirrored_klass = java_lang_Class::as_Klass(obj);
665
c89f86385056 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 605
diff changeset
3052 st->print(BULLET"fake entry for mirror: ");
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3053 mirrored_klass->print_value_on_maybe_null(st);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3054 st->cr();
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3055 Klass* array_klass = java_lang_Class::array_klass(obj);
665
c89f86385056 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 605
diff changeset
3056 st->print(BULLET"fake entry for array: ");
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3057 array_klass->print_value_on_maybe_null(st);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3058 st->cr();
2376
c7f3d0b4570f 7017732: move static fields into Class to prepare for perm gen removal
never
parents: 2357
diff changeset
3059 st->print_cr(BULLET"fake entry for oop_size: %d", java_lang_Class::oop_size(obj));
c7f3d0b4570f 7017732: move static fields into Class to prepare for perm gen removal
never
parents: 2357
diff changeset
3060 st->print_cr(BULLET"fake entry for static_oop_field_count: %d", java_lang_Class::static_oop_field_count(obj));
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3061 Klass* real_klass = java_lang_Class::as_Klass(obj);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3062 if (real_klass != NULL && real_klass->oop_is_instance()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3063 InstanceKlass::cast(real_klass)->do_local_static_fields(&print_field);
2376
c7f3d0b4570f 7017732: move static fields into Class to prepare for perm gen removal
never
parents: 2357
diff changeset
3064 }
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3065 } else if (this == SystemDictionary::MethodType_klass()) {
1039
987e948ebbc8 6815692: method handle code needs some cleanup (post-6655638)
jrose
parents: 997
diff changeset
3066 st->print(BULLET"signature: ");
2357
8033953d67ff 7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents: 2334
diff changeset
3067 java_lang_invoke_MethodType::print_signature(obj, st);
1039
987e948ebbc8 6815692: method handle code needs some cleanup (post-6655638)
jrose
parents: 997
diff changeset
3068 st->cr();
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3069 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3070 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3071
1155
4e6abf09f540 6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents: 1144
diff changeset
3072 #endif //PRODUCT
4e6abf09f540 6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents: 1144
diff changeset
3073
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3074 void InstanceKlass::oop_print_value_on(oop obj, outputStream* st) {
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3075 st->print("a ");
a61af66fc99e Initial load
duke
parents:
diff changeset
3076 name()->print_value_on(st);
a61af66fc99e Initial load
duke
parents:
diff changeset
3077 obj->print_address_on(st);
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3078 if (this == SystemDictionary::String_klass()
665
c89f86385056 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 605
diff changeset
3079 && java_lang_String::value(obj) != NULL) {
c89f86385056 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 605
diff changeset
3080 ResourceMark rm;
c89f86385056 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 605
diff changeset
3081 int len = java_lang_String::length(obj);
c89f86385056 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 605
diff changeset
3082 int plen = (len < 24 ? len : 12);
c89f86385056 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 605
diff changeset
3083 char* str = java_lang_String::as_utf8_string(obj, 0, plen);
c89f86385056 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 605
diff changeset
3084 st->print(" = \"%s\"", str);
c89f86385056 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 605
diff changeset
3085 if (len > plen)
c89f86385056 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 605
diff changeset
3086 st->print("...[%d]", len);
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3087 } else if (this == SystemDictionary::Class_klass()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3088 Klass* k = java_lang_Class::as_Klass(obj);
665
c89f86385056 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 605
diff changeset
3089 st->print(" = ");
c89f86385056 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 605
diff changeset
3090 if (k != NULL) {
c89f86385056 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 605
diff changeset
3091 k->print_value_on(st);
c89f86385056 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 605
diff changeset
3092 } else {
c89f86385056 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 605
diff changeset
3093 const char* tname = type2name(java_lang_Class::primitive_type(obj));
c89f86385056 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 605
diff changeset
3094 st->print("%s", tname ? tname : "type?");
c89f86385056 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 605
diff changeset
3095 }
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3096 } else if (this == SystemDictionary::MethodType_klass()) {
1039
987e948ebbc8 6815692: method handle code needs some cleanup (post-6655638)
jrose
parents: 997
diff changeset
3097 st->print(" = ");
2357
8033953d67ff 7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents: 2334
diff changeset
3098 java_lang_invoke_MethodType::print_signature(obj, st);
665
c89f86385056 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 605
diff changeset
3099 } else if (java_lang_boxing_object::is_instance(obj)) {
c89f86385056 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 605
diff changeset
3100 st->print(" = ");
c89f86385056 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 605
diff changeset
3101 java_lang_boxing_object::print(obj, st);
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3102 } else if (this == SystemDictionary::LambdaForm_klass()) {
6266
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6203
diff changeset
3103 oop vmentry = java_lang_invoke_LambdaForm::vmentry(obj);
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6203
diff changeset
3104 if (vmentry != NULL) {
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6203
diff changeset
3105 st->print(" => ");
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6203
diff changeset
3106 vmentry->print_value_on(st);
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6203
diff changeset
3107 }
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3108 } else if (this == SystemDictionary::MemberName_klass()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3109 Metadata* vmtarget = java_lang_invoke_MemberName::vmtarget(obj);
6266
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6203
diff changeset
3110 if (vmtarget != NULL) {
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6203
diff changeset
3111 st->print(" = ");
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6203
diff changeset
3112 vmtarget->print_value_on(st);
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6203
diff changeset
3113 } else {
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6203
diff changeset
3114 java_lang_invoke_MemberName::clazz(obj)->print_value_on(st);
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6203
diff changeset
3115 st->print(".");
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6203
diff changeset
3116 java_lang_invoke_MemberName::name(obj)->print_value_on(st);
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6203
diff changeset
3117 }
665
c89f86385056 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 605
diff changeset
3118 }
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3119 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3120
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3121 const char* InstanceKlass::internal_name() const {
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3122 return external_name();
a61af66fc99e Initial load
duke
parents:
diff changeset
3123 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3124
7956
16fb9f942703 6479360: PrintClassHistogram improvements
acorn
parents: 7610
diff changeset
3125 #if INCLUDE_SERVICES
16fb9f942703 6479360: PrintClassHistogram improvements
acorn
parents: 7610
diff changeset
3126 // Size Statistics
16fb9f942703 6479360: PrintClassHistogram improvements
acorn
parents: 7610
diff changeset
3127 void InstanceKlass::collect_statistics(KlassSizeStats *sz) const {
16fb9f942703 6479360: PrintClassHistogram improvements
acorn
parents: 7610
diff changeset
3128 Klass::collect_statistics(sz);
16fb9f942703 6479360: PrintClassHistogram improvements
acorn
parents: 7610
diff changeset
3129
16fb9f942703 6479360: PrintClassHistogram improvements
acorn
parents: 7610
diff changeset
3130 sz->_inst_size = HeapWordSize * size_helper();
16fb9f942703 6479360: PrintClassHistogram improvements
acorn
parents: 7610
diff changeset
3131 sz->_vtab_bytes = HeapWordSize * align_object_offset(vtable_length());
16fb9f942703 6479360: PrintClassHistogram improvements
acorn
parents: 7610
diff changeset
3132 sz->_itab_bytes = HeapWordSize * align_object_offset(itable_length());
16fb9f942703 6479360: PrintClassHistogram improvements
acorn
parents: 7610
diff changeset
3133 sz->_nonstatic_oopmap_bytes = HeapWordSize *
16fb9f942703 6479360: PrintClassHistogram improvements
acorn
parents: 7610
diff changeset
3134 ((is_interface() || is_anonymous()) ?
16fb9f942703 6479360: PrintClassHistogram improvements
acorn
parents: 7610
diff changeset
3135 align_object_offset(nonstatic_oop_map_size()) :
16fb9f942703 6479360: PrintClassHistogram improvements
acorn
parents: 7610
diff changeset
3136 nonstatic_oop_map_size());
16fb9f942703 6479360: PrintClassHistogram improvements
acorn
parents: 7610
diff changeset
3137
16fb9f942703 6479360: PrintClassHistogram improvements
acorn
parents: 7610
diff changeset
3138 int n = 0;
16fb9f942703 6479360: PrintClassHistogram improvements
acorn
parents: 7610
diff changeset
3139 n += (sz->_methods_array_bytes = sz->count_array(methods()));
16fb9f942703 6479360: PrintClassHistogram improvements
acorn
parents: 7610
diff changeset
3140 n += (sz->_method_ordering_bytes = sz->count_array(method_ordering()));
16fb9f942703 6479360: PrintClassHistogram improvements
acorn
parents: 7610
diff changeset
3141 n += (sz->_local_interfaces_bytes = sz->count_array(local_interfaces()));
16fb9f942703 6479360: PrintClassHistogram improvements
acorn
parents: 7610
diff changeset
3142 n += (sz->_transitive_interfaces_bytes = sz->count_array(transitive_interfaces()));
16fb9f942703 6479360: PrintClassHistogram improvements
acorn
parents: 7610
diff changeset
3143 n += (sz->_fields_bytes = sz->count_array(fields()));
16fb9f942703 6479360: PrintClassHistogram improvements
acorn
parents: 7610
diff changeset
3144 n += (sz->_inner_classes_bytes = sz->count_array(inner_classes()));
16fb9f942703 6479360: PrintClassHistogram improvements
acorn
parents: 7610
diff changeset
3145 sz->_ro_bytes += n;
16fb9f942703 6479360: PrintClassHistogram improvements
acorn
parents: 7610
diff changeset
3146
16fb9f942703 6479360: PrintClassHistogram improvements
acorn
parents: 7610
diff changeset
3147 const ConstantPool* cp = constants();
16fb9f942703 6479360: PrintClassHistogram improvements
acorn
parents: 7610
diff changeset
3148 if (cp) {
16fb9f942703 6479360: PrintClassHistogram improvements
acorn
parents: 7610
diff changeset
3149 cp->collect_statistics(sz);
16fb9f942703 6479360: PrintClassHistogram improvements
acorn
parents: 7610
diff changeset
3150 }
16fb9f942703 6479360: PrintClassHistogram improvements
acorn
parents: 7610
diff changeset
3151
16fb9f942703 6479360: PrintClassHistogram improvements
acorn
parents: 7610
diff changeset
3152 const Annotations* anno = annotations();
16fb9f942703 6479360: PrintClassHistogram improvements
acorn
parents: 7610
diff changeset
3153 if (anno) {
16fb9f942703 6479360: PrintClassHistogram improvements
acorn
parents: 7610
diff changeset
3154 anno->collect_statistics(sz);
16fb9f942703 6479360: PrintClassHistogram improvements
acorn
parents: 7610
diff changeset
3155 }
16fb9f942703 6479360: PrintClassHistogram improvements
acorn
parents: 7610
diff changeset
3156
16fb9f942703 6479360: PrintClassHistogram improvements
acorn
parents: 7610
diff changeset
3157 const Array<Method*>* methods_array = methods();
16fb9f942703 6479360: PrintClassHistogram improvements
acorn
parents: 7610
diff changeset
3158 if (methods()) {
16fb9f942703 6479360: PrintClassHistogram improvements
acorn
parents: 7610
diff changeset
3159 for (int i = 0; i < methods_array->length(); i++) {
16fb9f942703 6479360: PrintClassHistogram improvements
acorn
parents: 7610
diff changeset
3160 Method* method = methods_array->at(i);
16fb9f942703 6479360: PrintClassHistogram improvements
acorn
parents: 7610
diff changeset
3161 if (method) {
16fb9f942703 6479360: PrintClassHistogram improvements
acorn
parents: 7610
diff changeset
3162 sz->_method_count ++;
16fb9f942703 6479360: PrintClassHistogram improvements
acorn
parents: 7610
diff changeset
3163 method->collect_statistics(sz);
16fb9f942703 6479360: PrintClassHistogram improvements
acorn
parents: 7610
diff changeset
3164 }
16fb9f942703 6479360: PrintClassHistogram improvements
acorn
parents: 7610
diff changeset
3165 }
16fb9f942703 6479360: PrintClassHistogram improvements
acorn
parents: 7610
diff changeset
3166 }
16fb9f942703 6479360: PrintClassHistogram improvements
acorn
parents: 7610
diff changeset
3167 }
16fb9f942703 6479360: PrintClassHistogram improvements
acorn
parents: 7610
diff changeset
3168 #endif // INCLUDE_SERVICES
16fb9f942703 6479360: PrintClassHistogram improvements
acorn
parents: 7610
diff changeset
3169
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3170 // Verification
a61af66fc99e Initial load
duke
parents:
diff changeset
3171
a61af66fc99e Initial load
duke
parents:
diff changeset
3172 class VerifyFieldClosure: public OopClosure {
113
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
3173 protected:
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
3174 template <class T> void do_oop_work(T* p) {
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
3175 oop obj = oopDesc::load_decode_heap_oop(p);
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
3176 if (!obj->is_oop_or_null()) {
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
3177 tty->print_cr("Failed: " PTR_FORMAT " -> " PTR_FORMAT, p, (address)obj);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3178 Universe::print();
a61af66fc99e Initial load
duke
parents:
diff changeset
3179 guarantee(false, "boom");
a61af66fc99e Initial load
duke
parents:
diff changeset
3180 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3181 }
113
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
3182 public:
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
3183 virtual void do_oop(oop* p) { VerifyFieldClosure::do_oop_work(p); }
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
3184 virtual void do_oop(narrowOop* p) { VerifyFieldClosure::do_oop_work(p); }
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3185 };
a61af66fc99e Initial load
duke
parents:
diff changeset
3186
11034
e0c9a1d29eb4 8016325: JVM hangs verifying system dictionary
coleenp
parents: 10347
diff changeset
3187 void InstanceKlass::verify_on(outputStream* st, bool check_dictionary) {
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3188 #ifndef PRODUCT
11034
e0c9a1d29eb4 8016325: JVM hangs verifying system dictionary
coleenp
parents: 10347
diff changeset
3189 // Avoid redundant verifies, this really should be in product.
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3190 if (_verify_count == Universe::verify_count()) return;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3191 _verify_count = Universe::verify_count();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3192 #endif
11034
e0c9a1d29eb4 8016325: JVM hangs verifying system dictionary
coleenp
parents: 10347
diff changeset
3193
e0c9a1d29eb4 8016325: JVM hangs verifying system dictionary
coleenp
parents: 10347
diff changeset
3194 // Verify Klass
e0c9a1d29eb4 8016325: JVM hangs verifying system dictionary
coleenp
parents: 10347
diff changeset
3195 Klass::verify_on(st, check_dictionary);
e0c9a1d29eb4 8016325: JVM hangs verifying system dictionary
coleenp
parents: 10347
diff changeset
3196
e0c9a1d29eb4 8016325: JVM hangs verifying system dictionary
coleenp
parents: 10347
diff changeset
3197 // Verify that klass is present in SystemDictionary if not already
e0c9a1d29eb4 8016325: JVM hangs verifying system dictionary
coleenp
parents: 10347
diff changeset
3198 // verifying the SystemDictionary.
e0c9a1d29eb4 8016325: JVM hangs verifying system dictionary
coleenp
parents: 10347
diff changeset
3199 if (is_loaded() && !is_anonymous() && check_dictionary) {
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3200 Symbol* h_name = name();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3201 SystemDictionary::verify_obj_klass_present(h_name, class_loader_data());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3202 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3203
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3204 // Verify vtables
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3205 if (is_linked()) {
11034
e0c9a1d29eb4 8016325: JVM hangs verifying system dictionary
coleenp
parents: 10347
diff changeset
3206 ResourceMark rm;
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3207 // $$$ This used to be done only for m/s collections. Doing it
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3208 // always seemed a valid generalization. (DLD -- 6/00)
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3209 vtable()->verify(st);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3210 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3211
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3212 // Verify first subklass
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3213 if (subklass_oop() != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3214 guarantee(subklass_oop()->is_klass(), "should be klass");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3215 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3216
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3217 // Verify siblings
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3218 Klass* super = this->super();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3219 Klass* sib = next_sibling();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3220 if (sib != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3221 if (sib == this) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3222 fatal(err_msg("subclass points to itself " PTR_FORMAT, sib));
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3223 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3224
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3225 guarantee(sib->is_klass(), "should be klass");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3226 guarantee(sib->super() == super, "siblings should have same superklass");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3227 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3228
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3229 // Verify implementor fields
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3230 Klass* im = implementor();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3231 if (im != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3232 guarantee(is_interface(), "only interfaces should have implementor set");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3233 guarantee(im->is_klass(), "should be klass");
6983
070d523b96a7 8001471: Klass::cast() does nothing
hseigel
parents: 6934
diff changeset
3234 guarantee(!im->is_interface() || im == this,
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3235 "implementors cannot be interfaces");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3236 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3237
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3238 // Verify local interfaces
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3239 if (local_interfaces()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3240 Array<Klass*>* local_interfaces = this->local_interfaces();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3241 for (int j = 0; j < local_interfaces->length(); j++) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3242 Klass* e = local_interfaces->at(j);
6983
070d523b96a7 8001471: Klass::cast() does nothing
hseigel
parents: 6934
diff changeset
3243 guarantee(e->is_klass() && e->is_interface(), "invalid local interface");
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3244 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3245 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3246
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3247 // Verify transitive interfaces
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3248 if (transitive_interfaces() != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3249 Array<Klass*>* transitive_interfaces = this->transitive_interfaces();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3250 for (int j = 0; j < transitive_interfaces->length(); j++) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3251 Klass* e = transitive_interfaces->at(j);
6983
070d523b96a7 8001471: Klass::cast() does nothing
hseigel
parents: 6934
diff changeset
3252 guarantee(e->is_klass() && e->is_interface(), "invalid transitive interface");
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3253 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3254 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3255
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3256 // Verify methods
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3257 if (methods() != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3258 Array<Method*>* methods = this->methods();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3259 for (int j = 0; j < methods->length(); j++) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3260 guarantee(methods->at(j)->is_method(), "non-method in methods array");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3261 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3262 for (int j = 0; j < methods->length() - 1; j++) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3263 Method* m1 = methods->at(j);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3264 Method* m2 = methods->at(j + 1);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3265 guarantee(m1->name()->fast_compare(m2->name()) <= 0, "methods not sorted correctly");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3266 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3267 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3268
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3269 // Verify method ordering
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3270 if (method_ordering() != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3271 Array<int>* method_ordering = this->method_ordering();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3272 int length = method_ordering->length();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3273 if (JvmtiExport::can_maintain_original_method_order() ||
9057
8554c55669b0 8010943: guarantee(length == 0) failed: invalid method ordering length
hseigel
parents: 8719
diff changeset
3274 ((UseSharedSpaces || DumpSharedSpaces) && length != 0)) {
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3275 guarantee(length == methods()->length(), "invalid method ordering length");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3276 jlong sum = 0;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3277 for (int j = 0; j < length; j++) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3278 int original_index = method_ordering->at(j);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3279 guarantee(original_index >= 0, "invalid method ordering index");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3280 guarantee(original_index < length, "invalid method ordering index");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3281 sum += original_index;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3282 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3283 // Verify sum of indices 0,1,...,length-1
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3284 guarantee(sum == ((jlong)length*(length-1))/2, "invalid method ordering sum");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3285 } else {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3286 guarantee(length == 0, "invalid method ordering length");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3287 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3288 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3289
12823
ac9cb1d5a202 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 12811
diff changeset
3290 // Verify default methods
ac9cb1d5a202 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 12811
diff changeset
3291 if (default_methods() != NULL) {
ac9cb1d5a202 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 12811
diff changeset
3292 Array<Method*>* methods = this->default_methods();
ac9cb1d5a202 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 12811
diff changeset
3293 for (int j = 0; j < methods->length(); j++) {
ac9cb1d5a202 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 12811
diff changeset
3294 guarantee(methods->at(j)->is_method(), "non-method in methods array");
ac9cb1d5a202 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 12811
diff changeset
3295 }
ac9cb1d5a202 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 12811
diff changeset
3296 for (int j = 0; j < methods->length() - 1; j++) {
ac9cb1d5a202 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 12811
diff changeset
3297 Method* m1 = methods->at(j);
ac9cb1d5a202 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 12811
diff changeset
3298 Method* m2 = methods->at(j + 1);
ac9cb1d5a202 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 12811
diff changeset
3299 guarantee(m1->name()->fast_compare(m2->name()) <= 0, "methods not sorted correctly");
ac9cb1d5a202 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 12811
diff changeset
3300 }
ac9cb1d5a202 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 12811
diff changeset
3301 }
ac9cb1d5a202 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 12811
diff changeset
3302
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3303 // Verify JNI static field identifiers
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3304 if (jni_ids() != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3305 jni_ids()->verify(this);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3306 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3307
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3308 // Verify other fields
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3309 if (array_klasses() != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3310 guarantee(array_klasses()->is_klass(), "should be klass");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3311 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3312 if (constants() != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3313 guarantee(constants()->is_constantPool(), "should be constant pool");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3314 }
8693
872b3feace55 8008750: [partfait] Null pointer deference in hotspot/src/share/vm/oops/instanceKlass.hpp
morris
parents: 8031
diff changeset
3315 const Klass* host = host_klass();
872b3feace55 8008750: [partfait] Null pointer deference in hotspot/src/share/vm/oops/instanceKlass.hpp
morris
parents: 8031
diff changeset
3316 if (host != NULL) {
872b3feace55 8008750: [partfait] Null pointer deference in hotspot/src/share/vm/oops/instanceKlass.hpp
morris
parents: 8031
diff changeset
3317 guarantee(host->is_klass(), "should be klass");
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3318 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3319 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3320
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3321 void InstanceKlass::oop_verify_on(oop obj, outputStream* st) {
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3322 Klass::oop_verify_on(obj, st);
a61af66fc99e Initial load
duke
parents:
diff changeset
3323 VerifyFieldClosure blk;
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3324 obj->oop_iterate_no_header(&blk);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3325 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3326
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3327
113
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
3328 // JNIid class for jfieldIDs only
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
3329 // Note to reviewers:
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
3330 // These JNI functions are just moved over to column 1 and not changed
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
3331 // in the compressed oops workspace.
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3332 JNIid::JNIid(Klass* holder, int offset, JNIid* next) {
113
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
3333 _holder = holder;
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
3334 _offset = offset;
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
3335 _next = next;
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
3336 debug_only(_is_static_field_id = false;)
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
3337 }
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3338
a61af66fc99e Initial load
duke
parents:
diff changeset
3339
113
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
3340 JNIid* JNIid::find(int offset) {
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
3341 JNIid* current = this;
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
3342 while (current != NULL) {
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
3343 if (current->offset() == offset) return current;
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
3344 current = current->next();
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
3345 }
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
3346 return NULL;
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
3347 }
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3348
a61af66fc99e Initial load
duke
parents:
diff changeset
3349 void JNIid::deallocate(JNIid* current) {
113
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
3350 while (current != NULL) {
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
3351 JNIid* next = current->next();
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
3352 delete current;
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
3353 current = next;
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
3354 }
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
3355 }
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3356
a61af66fc99e Initial load
duke
parents:
diff changeset
3357
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3358 void JNIid::verify(Klass* holder) {
6735
aed758eda82a 7195833: NPG: Rename instanceClassLoaderKlass, instanceRefKlass and instanceMirrorKlass
coleenp
parents: 6733
diff changeset
3359 int first_field_offset = InstanceMirrorKlass::offset_of_static_fields();
113
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
3360 int end_field_offset;
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3361 end_field_offset = first_field_offset + (InstanceKlass::cast(holder)->static_field_size() * wordSize);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3362
113
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
3363 JNIid* current = this;
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
3364 while (current != NULL) {
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
3365 guarantee(current->holder() == holder, "Invalid klass in JNIid");
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
3366 #ifdef ASSERT
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
3367 int o = current->offset();
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
3368 if (current->is_static_field_id()) {
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
3369 guarantee(o >= first_field_offset && o < end_field_offset, "Invalid static field offset in JNIid");
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
3370 }
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
3371 #endif
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
3372 current = current->next();
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
3373 }
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
3374 }
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3375
a61af66fc99e Initial load
duke
parents:
diff changeset
3376
a61af66fc99e Initial load
duke
parents:
diff changeset
3377 #ifdef ASSERT
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3378 void InstanceKlass::set_init_state(ClassState state) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3379 bool good_state = is_shared() ? (_init_state <= state)
113
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
3380 : (_init_state < state);
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
3381 assert(good_state || state == allocated, "illegal state transition");
4739
52b5d32fbfaf 7117052: instanceKlass::_init_state can be u1 type
coleenp
parents: 4006
diff changeset
3382 _init_state = (u1)state;
113
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
3383 }
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3384 #endif
a61af66fc99e Initial load
duke
parents:
diff changeset
3385
a61af66fc99e Initial load
duke
parents:
diff changeset
3386
a61af66fc99e Initial load
duke
parents:
diff changeset
3387 // RedefineClasses() support for previous versions:
a61af66fc99e Initial load
duke
parents:
diff changeset
3388
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3389 // Purge previous versions
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3390 static void purge_previous_versions_internal(InstanceKlass* ik, int emcp_method_count) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3391 if (ik->previous_versions() != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3392 // This klass has previous versions so see what we can cleanup
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3393 // while it is safe to do so.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3394
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3395 int deleted_count = 0; // leave debugging breadcrumbs
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3396 int live_count = 0;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3397 ClassLoaderData* loader_data = ik->class_loader_data() == NULL ?
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3398 ClassLoaderData::the_null_class_loader_data() :
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3399 ik->class_loader_data();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3400
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3401 // RC_TRACE macro has an embedded ResourceMark
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3402 RC_TRACE(0x00000200, ("purge: %s: previous version length=%d",
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3403 ik->external_name(), ik->previous_versions()->length()));
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3404
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3405 for (int i = ik->previous_versions()->length() - 1; i >= 0; i--) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3406 // check the previous versions array
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3407 PreviousVersionNode * pv_node = ik->previous_versions()->at(i);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3408 ConstantPool* cp_ref = pv_node->prev_constant_pool();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3409 assert(cp_ref != NULL, "cp ref was unexpectedly cleared");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3410
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3411 ConstantPool* pvcp = cp_ref;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3412 if (!pvcp->on_stack()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3413 // If the constant pool isn't on stack, none of the methods
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3414 // are executing. Delete all the methods, the constant pool and
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3415 // and this previous version node.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3416 GrowableArray<Method*>* method_refs = pv_node->prev_EMCP_methods();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3417 if (method_refs != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3418 for (int j = method_refs->length() - 1; j >= 0; j--) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3419 Method* method = method_refs->at(j);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3420 assert(method != NULL, "method ref was unexpectedly cleared");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3421 method_refs->remove_at(j);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3422 // method will be freed with associated class.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3423 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3424 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3425 // Remove the constant pool
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3426 delete pv_node;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3427 // Since we are traversing the array backwards, we don't have to
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3428 // do anything special with the index.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3429 ik->previous_versions()->remove_at(i);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3430 deleted_count++;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3431 continue;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3432 } else {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3433 RC_TRACE(0x00000200, ("purge: previous version @%d is alive", i));
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3434 assert(pvcp->pool_holder() != NULL, "Constant pool with no holder");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3435 guarantee (!loader_data->is_unloading(), "unloaded classes can't be on the stack");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3436 live_count++;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3437 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3438
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3439 // At least one method is live in this previous version, clean out
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3440 // the others or mark them as obsolete.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3441 GrowableArray<Method*>* method_refs = pv_node->prev_EMCP_methods();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3442 if (method_refs != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3443 RC_TRACE(0x00000200, ("purge: previous methods length=%d",
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3444 method_refs->length()));
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3445 for (int j = method_refs->length() - 1; j >= 0; j--) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3446 Method* method = method_refs->at(j);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3447 assert(method != NULL, "method ref was unexpectedly cleared");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3448
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3449 // Remove the emcp method if it's not executing
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3450 // If it's been made obsolete by a redefinition of a non-emcp
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3451 // method, mark it as obsolete but leave it to clean up later.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3452 if (!method->on_stack()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3453 method_refs->remove_at(j);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3454 } else if (emcp_method_count == 0) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3455 method->set_is_obsolete();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3456 } else {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3457 // RC_TRACE macro has an embedded ResourceMark
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3458 RC_TRACE(0x00000200,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3459 ("purge: %s(%s): prev method @%d in version @%d is alive",
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3460 method->name()->as_C_string(),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3461 method->signature()->as_C_string(), j, i));
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3462 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3463 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3464 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3465 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3466 assert(ik->previous_versions()->length() == live_count, "sanity check");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3467 RC_TRACE(0x00000200,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3468 ("purge: previous version stats: live=%d, deleted=%d", live_count,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3469 deleted_count));
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3470 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3471 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3472
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3473 // External interface for use during class unloading.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3474 void InstanceKlass::purge_previous_versions(InstanceKlass* ik) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3475 // Call with >0 emcp methods since they are not currently being redefined.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3476 purge_previous_versions_internal(ik, 1);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3477 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3478
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3479
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3480 // Potentially add an information node that contains pointers to the
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3481 // interesting parts of the previous version of the_class.
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3482 // This is also where we clean out any unused references.
977
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
3483 // Note that while we delete nodes from the _previous_versions
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
3484 // array, we never delete the array itself until the klass is
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
3485 // unloaded. The has_been_redefined() query depends on that fact.
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
3486 //
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3487 void InstanceKlass::add_previous_version(instanceKlassHandle ikh,
113
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
3488 BitMap* emcp_methods, int emcp_method_count) {
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3489 assert(Thread::current()->is_VM_thread(),
113
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
3490 "only VMThread can add previous versions");
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3491
a61af66fc99e Initial load
duke
parents:
diff changeset
3492 if (_previous_versions == NULL) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3493 // This is the first previous version so make some space.
a61af66fc99e Initial load
duke
parents:
diff changeset
3494 // Start with 2 elements under the assumption that the class
a61af66fc99e Initial load
duke
parents:
diff changeset
3495 // won't be redefined much.
6197
d2a62e0f25eb 6995781: Native Memory Tracking (Phase 1)
zgu
parents: 6038
diff changeset
3496 _previous_versions = new (ResourceObj::C_HEAP, mtClass)
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3497 GrowableArray<PreviousVersionNode *>(2, true);
a61af66fc99e Initial load
duke
parents:
diff changeset
3498 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3499
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3500 ConstantPool* cp_ref = ikh->constants();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3501
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3502 // RC_TRACE macro has an embedded ResourceMark
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3503 RC_TRACE(0x00000400, ("adding previous version ref for %s @%d, EMCP_cnt=%d "
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3504 "on_stack=%d",
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3505 ikh->external_name(), _previous_versions->length(), emcp_method_count,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3506 cp_ref->on_stack()));
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3507
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3508 // If the constant pool for this previous version of the class
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3509 // is not marked as being on the stack, then none of the methods
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3510 // in this previous version of the class are on the stack so
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3511 // we don't need to create a new PreviousVersionNode. However,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3512 // we still need to examine older previous versions below.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3513 Array<Method*>* old_methods = ikh->methods();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3514
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3515 if (cp_ref->on_stack()) {
12281
4f9a42c33738 8022887: Assertion hit while using class and redefining it with RedefineClasses simultaneously
coleenp
parents: 12067
diff changeset
3516 PreviousVersionNode * pv_node = NULL;
4f9a42c33738 8022887: Assertion hit while using class and redefining it with RedefineClasses simultaneously
coleenp
parents: 12067
diff changeset
3517 if (emcp_method_count == 0) {
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3518 // non-shared ConstantPool gets a reference
12281
4f9a42c33738 8022887: Assertion hit while using class and redefining it with RedefineClasses simultaneously
coleenp
parents: 12067
diff changeset
3519 pv_node = new PreviousVersionNode(cp_ref, NULL);
4f9a42c33738 8022887: Assertion hit while using class and redefining it with RedefineClasses simultaneously
coleenp
parents: 12067
diff changeset
3520 RC_TRACE(0x00000400,
4f9a42c33738 8022887: Assertion hit while using class and redefining it with RedefineClasses simultaneously
coleenp
parents: 12067
diff changeset
3521 ("add: all methods are obsolete; flushing any EMCP refs"));
4f9a42c33738 8022887: Assertion hit while using class and redefining it with RedefineClasses simultaneously
coleenp
parents: 12067
diff changeset
3522 } else {
4f9a42c33738 8022887: Assertion hit while using class and redefining it with RedefineClasses simultaneously
coleenp
parents: 12067
diff changeset
3523 int local_count = 0;
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3524 GrowableArray<Method*>* method_refs = new (ResourceObj::C_HEAP, mtClass)
12281
4f9a42c33738 8022887: Assertion hit while using class and redefining it with RedefineClasses simultaneously
coleenp
parents: 12067
diff changeset
3525 GrowableArray<Method*>(emcp_method_count, true);
4f9a42c33738 8022887: Assertion hit while using class and redefining it with RedefineClasses simultaneously
coleenp
parents: 12067
diff changeset
3526 for (int i = 0; i < old_methods->length(); i++) {
4f9a42c33738 8022887: Assertion hit while using class and redefining it with RedefineClasses simultaneously
coleenp
parents: 12067
diff changeset
3527 if (emcp_methods->at(i)) {
4f9a42c33738 8022887: Assertion hit while using class and redefining it with RedefineClasses simultaneously
coleenp
parents: 12067
diff changeset
3528 // this old method is EMCP. Save it only if it's on the stack
4f9a42c33738 8022887: Assertion hit while using class and redefining it with RedefineClasses simultaneously
coleenp
parents: 12067
diff changeset
3529 Method* old_method = old_methods->at(i);
4f9a42c33738 8022887: Assertion hit while using class and redefining it with RedefineClasses simultaneously
coleenp
parents: 12067
diff changeset
3530 if (old_method->on_stack()) {
4f9a42c33738 8022887: Assertion hit while using class and redefining it with RedefineClasses simultaneously
coleenp
parents: 12067
diff changeset
3531 method_refs->append(old_method);
4f9a42c33738 8022887: Assertion hit while using class and redefining it with RedefineClasses simultaneously
coleenp
parents: 12067
diff changeset
3532 }
4f9a42c33738 8022887: Assertion hit while using class and redefining it with RedefineClasses simultaneously
coleenp
parents: 12067
diff changeset
3533 if (++local_count >= emcp_method_count) {
4f9a42c33738 8022887: Assertion hit while using class and redefining it with RedefineClasses simultaneously
coleenp
parents: 12067
diff changeset
3534 // no more EMCP methods so bail out now
4f9a42c33738 8022887: Assertion hit while using class and redefining it with RedefineClasses simultaneously
coleenp
parents: 12067
diff changeset
3535 break;
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3536 }
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3537 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3538 }
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3539 // non-shared ConstantPool gets a reference
12281
4f9a42c33738 8022887: Assertion hit while using class and redefining it with RedefineClasses simultaneously
coleenp
parents: 12067
diff changeset
3540 pv_node = new PreviousVersionNode(cp_ref, method_refs);
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3541 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3542 // append new previous version.
12281
4f9a42c33738 8022887: Assertion hit while using class and redefining it with RedefineClasses simultaneously
coleenp
parents: 12067
diff changeset
3543 _previous_versions->append(pv_node);
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3544 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3545
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3546 // Since the caller is the VMThread and we are at a safepoint, this
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3547 // is a good time to clear out unused references.
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3548
a61af66fc99e Initial load
duke
parents:
diff changeset
3549 RC_TRACE(0x00000400, ("add: previous version length=%d",
a61af66fc99e Initial load
duke
parents:
diff changeset
3550 _previous_versions->length()));
a61af66fc99e Initial load
duke
parents:
diff changeset
3551
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3552 // Purge previous versions not executing on the stack
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3553 purge_previous_versions_internal(this, emcp_method_count);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3554
a61af66fc99e Initial load
duke
parents:
diff changeset
3555 int obsolete_method_count = old_methods->length() - emcp_method_count;
a61af66fc99e Initial load
duke
parents:
diff changeset
3556
a61af66fc99e Initial load
duke
parents:
diff changeset
3557 if (emcp_method_count != 0 && obsolete_method_count != 0 &&
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3558 _previous_versions->length() > 0) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3559 // We have a mix of obsolete and EMCP methods so we have to
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3560 // clear out any matching EMCP method entries the hard way.
a61af66fc99e Initial load
duke
parents:
diff changeset
3561 int local_count = 0;
a61af66fc99e Initial load
duke
parents:
diff changeset
3562 for (int i = 0; i < old_methods->length(); i++) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3563 if (!emcp_methods->at(i)) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3564 // only obsolete methods are interesting
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3565 Method* old_method = old_methods->at(i);
2177
3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 1972
diff changeset
3566 Symbol* m_name = old_method->name();
3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 1972
diff changeset
3567 Symbol* m_signature = old_method->signature();
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3568
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3569 // we might not have added the last entry
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3570 for (int j = _previous_versions->length() - 1; j >= 0; j--) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3571 // check the previous versions array for non executing obsolete methods
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3572 PreviousVersionNode * pv_node = _previous_versions->at(j);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3573
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3574 GrowableArray<Method*>* method_refs = pv_node->prev_EMCP_methods();
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3575 if (method_refs == NULL) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3576 // We have run into a PreviousVersion generation where
a61af66fc99e Initial load
duke
parents:
diff changeset
3577 // all methods were made obsolete during that generation's
a61af66fc99e Initial load
duke
parents:
diff changeset
3578 // RedefineClasses() operation. At the time of that
a61af66fc99e Initial load
duke
parents:
diff changeset
3579 // operation, all EMCP methods were flushed so we don't
a61af66fc99e Initial load
duke
parents:
diff changeset
3580 // have to go back any further.
a61af66fc99e Initial load
duke
parents:
diff changeset
3581 //
a61af66fc99e Initial load
duke
parents:
diff changeset
3582 // A NULL method_refs is different than an empty method_refs.
a61af66fc99e Initial load
duke
parents:
diff changeset
3583 // We cannot infer any optimizations about older generations
a61af66fc99e Initial load
duke
parents:
diff changeset
3584 // from an empty method_refs for the current generation.
a61af66fc99e Initial load
duke
parents:
diff changeset
3585 break;
a61af66fc99e Initial load
duke
parents:
diff changeset
3586 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3587
a61af66fc99e Initial load
duke
parents:
diff changeset
3588 for (int k = method_refs->length() - 1; k >= 0; k--) {
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3589 Method* method = method_refs->at(k);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3590
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3591 if (!method->is_obsolete() &&
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3592 method->name() == m_name &&
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3593 method->signature() == m_signature) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3594 // The current RedefineClasses() call has made all EMCP
a61af66fc99e Initial load
duke
parents:
diff changeset
3595 // versions of this method obsolete so mark it as obsolete
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3596 // and remove the reference.
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3597 RC_TRACE(0x00000400,
a61af66fc99e Initial load
duke
parents:
diff changeset
3598 ("add: %s(%s): flush obsolete method @%d in version @%d",
a61af66fc99e Initial load
duke
parents:
diff changeset
3599 m_name->as_C_string(), m_signature->as_C_string(), k, j));
a61af66fc99e Initial load
duke
parents:
diff changeset
3600
a61af66fc99e Initial load
duke
parents:
diff changeset
3601 method->set_is_obsolete();
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3602 // Leave obsolete methods on the previous version list to
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3603 // clean up later.
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3604 break;
a61af66fc99e Initial load
duke
parents:
diff changeset
3605 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3606 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3607
a61af66fc99e Initial load
duke
parents:
diff changeset
3608 // The previous loop may not find a matching EMCP method, but
a61af66fc99e Initial load
duke
parents:
diff changeset
3609 // that doesn't mean that we can optimize and not go any
a61af66fc99e Initial load
duke
parents:
diff changeset
3610 // further back in the PreviousVersion generations. The EMCP
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3611 // method for this generation could have already been deleted,
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3612 // but there still may be an older EMCP method that has not
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3613 // been deleted.
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3614 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3615
a61af66fc99e Initial load
duke
parents:
diff changeset
3616 if (++local_count >= obsolete_method_count) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3617 // no more obsolete methods so bail out now
a61af66fc99e Initial load
duke
parents:
diff changeset
3618 break;
a61af66fc99e Initial load
duke
parents:
diff changeset
3619 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3620 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3621 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3622 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3623 } // end add_previous_version()
a61af66fc99e Initial load
duke
parents:
diff changeset
3624
a61af66fc99e Initial load
duke
parents:
diff changeset
3625
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3626 // Determine if InstanceKlass has a previous version.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3627 bool InstanceKlass::has_previous_version() const {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3628 return (_previous_versions != NULL && _previous_versions->length() > 0);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3629 } // end has_previous_version()
a61af66fc99e Initial load
duke
parents:
diff changeset
3630
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3631
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3632 Method* InstanceKlass::method_with_idnum(int idnum) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3633 Method* m = NULL;
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3634 if (idnum < methods()->length()) {
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3635 m = methods()->at(idnum);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3636 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3637 if (m == NULL || m->method_idnum() != idnum) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3638 for (int index = 0; index < methods()->length(); ++index) {
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3639 m = methods()->at(index);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3640 if (m->method_idnum() == idnum) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3641 return m;
a61af66fc99e Initial load
duke
parents:
diff changeset
3642 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3643 }
12281
4f9a42c33738 8022887: Assertion hit while using class and redefining it with RedefineClasses simultaneously
coleenp
parents: 12067
diff changeset
3644 // None found, return null for the caller to handle.
4f9a42c33738 8022887: Assertion hit while using class and redefining it with RedefineClasses simultaneously
coleenp
parents: 12067
diff changeset
3645 return NULL;
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3646 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3647 return m;
a61af66fc99e Initial load
duke
parents:
diff changeset
3648 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3649
11148
825e6cb66923 8020309: Eliminate InstanceKlass::_cached_class_file_len.
jiangli
parents: 11096
diff changeset
3650 jint InstanceKlass::get_cached_class_file_len() {
825e6cb66923 8020309: Eliminate InstanceKlass::_cached_class_file_len.
jiangli
parents: 11096
diff changeset
3651 return VM_RedefineClasses::get_cached_class_file_len(_cached_class_file);
825e6cb66923 8020309: Eliminate InstanceKlass::_cached_class_file_len.
jiangli
parents: 11096
diff changeset
3652 }
825e6cb66923 8020309: Eliminate InstanceKlass::_cached_class_file_len.
jiangli
parents: 11096
diff changeset
3653
825e6cb66923 8020309: Eliminate InstanceKlass::_cached_class_file_len.
jiangli
parents: 11096
diff changeset
3654 unsigned char * InstanceKlass::get_cached_class_file_bytes() {
825e6cb66923 8020309: Eliminate InstanceKlass::_cached_class_file_len.
jiangli
parents: 11096
diff changeset
3655 return VM_RedefineClasses::get_cached_class_file_bytes(_cached_class_file);
825e6cb66923 8020309: Eliminate InstanceKlass::_cached_class_file_len.
jiangli
parents: 11096
diff changeset
3656 }
825e6cb66923 8020309: Eliminate InstanceKlass::_cached_class_file_len.
jiangli
parents: 11096
diff changeset
3657
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3658
a61af66fc99e Initial load
duke
parents:
diff changeset
3659 // Construct a PreviousVersionNode entry for the array hung off
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3660 // the InstanceKlass.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3661 PreviousVersionNode::PreviousVersionNode(ConstantPool* prev_constant_pool,
12281
4f9a42c33738 8022887: Assertion hit while using class and redefining it with RedefineClasses simultaneously
coleenp
parents: 12067
diff changeset
3662 GrowableArray<Method*>* prev_EMCP_methods) {
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3663
a61af66fc99e Initial load
duke
parents:
diff changeset
3664 _prev_constant_pool = prev_constant_pool;
a61af66fc99e Initial load
duke
parents:
diff changeset
3665 _prev_EMCP_methods = prev_EMCP_methods;
a61af66fc99e Initial load
duke
parents:
diff changeset
3666 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3667
a61af66fc99e Initial load
duke
parents:
diff changeset
3668
a61af66fc99e Initial load
duke
parents:
diff changeset
3669 // Destroy a PreviousVersionNode
a61af66fc99e Initial load
duke
parents:
diff changeset
3670 PreviousVersionNode::~PreviousVersionNode() {
a61af66fc99e Initial load
duke
parents:
diff changeset
3671 if (_prev_constant_pool != NULL) {
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3672 _prev_constant_pool = NULL;
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3673 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3674
a61af66fc99e Initial load
duke
parents:
diff changeset
3675 if (_prev_EMCP_methods != NULL) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3676 delete _prev_EMCP_methods;
a61af66fc99e Initial load
duke
parents:
diff changeset
3677 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3678 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3679
a61af66fc99e Initial load
duke
parents:
diff changeset
3680 // Construct a helper for walking the previous versions array
12281
4f9a42c33738 8022887: Assertion hit while using class and redefining it with RedefineClasses simultaneously
coleenp
parents: 12067
diff changeset
3681 PreviousVersionWalker::PreviousVersionWalker(Thread* thread, InstanceKlass *ik) {
4f9a42c33738 8022887: Assertion hit while using class and redefining it with RedefineClasses simultaneously
coleenp
parents: 12067
diff changeset
3682 _thread = thread;
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3683 _previous_versions = ik->previous_versions();
a61af66fc99e Initial load
duke
parents:
diff changeset
3684 _current_index = 0;
a61af66fc99e Initial load
duke
parents:
diff changeset
3685 _current_p = NULL;
12281
4f9a42c33738 8022887: Assertion hit while using class and redefining it with RedefineClasses simultaneously
coleenp
parents: 12067
diff changeset
3686 _current_constant_pool_handle = constantPoolHandle(thread, ik->constants());
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3687 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3688
a61af66fc99e Initial load
duke
parents:
diff changeset
3689
a61af66fc99e Initial load
duke
parents:
diff changeset
3690 // Return the interesting information for the next previous version
a61af66fc99e Initial load
duke
parents:
diff changeset
3691 // of the klass. Returns NULL if there are no more previous versions.
12281
4f9a42c33738 8022887: Assertion hit while using class and redefining it with RedefineClasses simultaneously
coleenp
parents: 12067
diff changeset
3692 PreviousVersionNode* PreviousVersionWalker::next_previous_version() {
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3693 if (_previous_versions == NULL) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3694 // no previous versions so nothing to return
a61af66fc99e Initial load
duke
parents:
diff changeset
3695 return NULL;
a61af66fc99e Initial load
duke
parents:
diff changeset
3696 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3697
12281
4f9a42c33738 8022887: Assertion hit while using class and redefining it with RedefineClasses simultaneously
coleenp
parents: 12067
diff changeset
3698 _current_p = NULL; // reset to NULL
4f9a42c33738 8022887: Assertion hit while using class and redefining it with RedefineClasses simultaneously
coleenp
parents: 12067
diff changeset
3699 _current_constant_pool_handle = NULL;
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3700
a61af66fc99e Initial load
duke
parents:
diff changeset
3701 int length = _previous_versions->length();
a61af66fc99e Initial load
duke
parents:
diff changeset
3702
a61af66fc99e Initial load
duke
parents:
diff changeset
3703 while (_current_index < length) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3704 PreviousVersionNode * pv_node = _previous_versions->at(_current_index++);
12281
4f9a42c33738 8022887: Assertion hit while using class and redefining it with RedefineClasses simultaneously
coleenp
parents: 12067
diff changeset
3705
4f9a42c33738 8022887: Assertion hit while using class and redefining it with RedefineClasses simultaneously
coleenp
parents: 12067
diff changeset
3706 // Save a handle to the constant pool for this previous version,
4f9a42c33738 8022887: Assertion hit while using class and redefining it with RedefineClasses simultaneously
coleenp
parents: 12067
diff changeset
3707 // which keeps all the methods from being deallocated.
4f9a42c33738 8022887: Assertion hit while using class and redefining it with RedefineClasses simultaneously
coleenp
parents: 12067
diff changeset
3708 _current_constant_pool_handle = constantPoolHandle(_thread, pv_node->prev_constant_pool());
4f9a42c33738 8022887: Assertion hit while using class and redefining it with RedefineClasses simultaneously
coleenp
parents: 12067
diff changeset
3709 _current_p = pv_node;
4f9a42c33738 8022887: Assertion hit while using class and redefining it with RedefineClasses simultaneously
coleenp
parents: 12067
diff changeset
3710 return pv_node;
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3711 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3712
a61af66fc99e Initial load
duke
parents:
diff changeset
3713 return NULL;
a61af66fc99e Initial load
duke
parents:
diff changeset
3714 } // end next_previous_version()