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annotate src/share/vm/oops/instanceKlass.cpp @ 6985:80e866b1d053

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Merge
author coleenp
date Fri, 16 Nov 2012 09:19:12 -0500
parents bd7a7ce2e264 070d523b96a7
children 2cb439954abf f34d701e952e
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1 /*
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2 * Copyright (c) 1997, 2012, 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/metadataFactory.hpp"
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38 #include "memory/oopFactory.hpp"
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39 #include "oops/fieldStreams.hpp"
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40 #include "oops/instanceClassLoaderKlass.hpp"
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41 #include "oops/instanceKlass.hpp"
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42 #include "oops/instanceMirrorKlass.hpp"
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43 #include "oops/instanceOop.hpp"
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44 #include "oops/klass.inline.hpp"
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45 #include "oops/method.hpp"
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46 #include "oops/oop.inline.hpp"
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47 #include "oops/symbol.hpp"
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48 #include "prims/jvmtiExport.hpp"
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49 #include "prims/jvmtiRedefineClassesTrace.hpp"
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50 #include "runtime/fieldDescriptor.hpp"
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51 #include "runtime/handles.inline.hpp"
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52 #include "runtime/javaCalls.hpp"
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53 #include "runtime/mutexLocker.hpp"
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54 #include "services/threadService.hpp"
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55 #include "utilities/dtrace.hpp"
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56 #ifdef TARGET_OS_FAMILY_linux
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57 # include "thread_linux.inline.hpp"
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58 #endif
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59 #ifdef TARGET_OS_FAMILY_solaris
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60 # include "thread_solaris.inline.hpp"
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61 #endif
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62 #ifdef TARGET_OS_FAMILY_windows
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63 # include "thread_windows.inline.hpp"
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64 #endif
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65 #ifdef TARGET_OS_FAMILY_bsd
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66 # include "thread_bsd.inline.hpp"
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67 #endif
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68 #ifndef SERIALGC
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69 #include "gc_implementation/concurrentMarkSweep/cmsOopClosures.inline.hpp"
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70 #include "gc_implementation/g1/g1CollectedHeap.inline.hpp"
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71 #include "gc_implementation/g1/g1OopClosures.inline.hpp"
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72 #include "gc_implementation/g1/g1RemSet.inline.hpp"
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73 #include "gc_implementation/g1/heapRegionSeq.inline.hpp"
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74 #include "gc_implementation/parNew/parOopClosures.inline.hpp"
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75 #include "gc_implementation/parallelScavenge/parallelScavengeHeap.inline.hpp"
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76 #include "gc_implementation/parallelScavenge/psPromotionManager.inline.hpp"
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77 #include "gc_implementation/parallelScavenge/psScavenge.inline.hpp"
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78 #include "oops/oop.pcgc.inline.hpp"
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79 #endif
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80 #ifdef COMPILER1
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81 #include "c1/c1_Compiler.hpp"
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82 #endif
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83
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84 #ifdef DTRACE_ENABLED
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85
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86 #ifndef USDT2
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87
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88 HS_DTRACE_PROBE_DECL4(hotspot, class__initialization__required,
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89 char*, intptr_t, oop, intptr_t);
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90 HS_DTRACE_PROBE_DECL5(hotspot, class__initialization__recursive,
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91 char*, intptr_t, oop, intptr_t, int);
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92 HS_DTRACE_PROBE_DECL5(hotspot, class__initialization__concurrent,
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93 char*, intptr_t, oop, intptr_t, int);
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94 HS_DTRACE_PROBE_DECL5(hotspot, class__initialization__erroneous,
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95 char*, intptr_t, oop, intptr_t, int);
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96 HS_DTRACE_PROBE_DECL5(hotspot, class__initialization__super__failed,
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97 char*, intptr_t, oop, intptr_t, int);
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98 HS_DTRACE_PROBE_DECL5(hotspot, class__initialization__clinit,
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99 char*, intptr_t, oop, intptr_t, int);
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100 HS_DTRACE_PROBE_DECL5(hotspot, class__initialization__error,
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101 char*, intptr_t, oop, intptr_t, int);
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102 HS_DTRACE_PROBE_DECL5(hotspot, class__initialization__end,
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103 char*, intptr_t, oop, intptr_t, int);
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104
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105 #define DTRACE_CLASSINIT_PROBE(type, clss, thread_type) \
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106 { \
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107 char* data = NULL; \
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108 int len = 0; \
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109 Symbol* name = (clss)->name(); \
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110 if (name != NULL) { \
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111 data = (char*)name->bytes(); \
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112 len = name->utf8_length(); \
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113 } \
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114 HS_DTRACE_PROBE4(hotspot, class__initialization__##type, \
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115 data, len, (clss)->class_loader(), thread_type); \
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116 }
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117
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118 #define DTRACE_CLASSINIT_PROBE_WAIT(type, clss, thread_type, wait) \
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119 { \
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120 char* data = NULL; \
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121 int len = 0; \
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122 Symbol* name = (clss)->name(); \
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123 if (name != NULL) { \
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124 data = (char*)name->bytes(); \
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125 len = name->utf8_length(); \
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126 } \
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127 HS_DTRACE_PROBE5(hotspot, class__initialization__##type, \
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128 data, len, (clss)->class_loader(), thread_type, wait); \
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129 }
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130 #else /* USDT2 */
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131
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132 #define HOTSPOT_CLASS_INITIALIZATION_required HOTSPOT_CLASS_INITIALIZATION_REQUIRED
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133 #define HOTSPOT_CLASS_INITIALIZATION_recursive HOTSPOT_CLASS_INITIALIZATION_RECURSIVE
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134 #define HOTSPOT_CLASS_INITIALIZATION_concurrent HOTSPOT_CLASS_INITIALIZATION_CONCURRENT
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135 #define HOTSPOT_CLASS_INITIALIZATION_erroneous HOTSPOT_CLASS_INITIALIZATION_ERRONEOUS
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136 #define HOTSPOT_CLASS_INITIALIZATION_super__failed HOTSPOT_CLASS_INITIALIZATION_SUPER_FAILED
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137 #define HOTSPOT_CLASS_INITIALIZATION_clinit HOTSPOT_CLASS_INITIALIZATION_CLINIT
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138 #define HOTSPOT_CLASS_INITIALIZATION_error HOTSPOT_CLASS_INITIALIZATION_ERROR
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139 #define HOTSPOT_CLASS_INITIALIZATION_end HOTSPOT_CLASS_INITIALIZATION_END
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140 #define DTRACE_CLASSINIT_PROBE(type, clss, thread_type) \
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141 { \
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142 char* data = NULL; \
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143 int len = 0; \
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144 Symbol* name = (clss)->name(); \
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145 if (name != NULL) { \
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146 data = (char*)name->bytes(); \
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147 len = name->utf8_length(); \
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148 } \
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149 HOTSPOT_CLASS_INITIALIZATION_##type( \
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150 data, len, (clss)->class_loader(), thread_type); \
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151 }
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152
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153 #define DTRACE_CLASSINIT_PROBE_WAIT(type, clss, thread_type, wait) \
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154 { \
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155 char* data = NULL; \
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156 int len = 0; \
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157 Symbol* name = (clss)->name(); \
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158 if (name != NULL) { \
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159 data = (char*)name->bytes(); \
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160 len = name->utf8_length(); \
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161 } \
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162 HOTSPOT_CLASS_INITIALIZATION_##type( \
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163 data, len, (clss)->class_loader(), thread_type, wait); \
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164 }
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165 #endif /* USDT2 */
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166
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167 #else // ndef DTRACE_ENABLED
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168
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169 #define DTRACE_CLASSINIT_PROBE(type, clss, thread_type)
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170 #define DTRACE_CLASSINIT_PROBE_WAIT(type, clss, thread_type, wait)
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171
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172 #endif // ndef DTRACE_ENABLED
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173
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174 Klass* InstanceKlass::allocate_instance_klass(ClassLoaderData* loader_data,
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175 int vtable_len,
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176 int itable_len,
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177 int static_field_size,
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178 int nonstatic_oop_map_size,
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179 ReferenceType rt,
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180 AccessFlags access_flags,
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181 Symbol* name,
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182 Klass* super_klass,
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183 KlassHandle host_klass,
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184 TRAPS) {
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185
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186 int size = InstanceKlass::size(vtable_len, itable_len, nonstatic_oop_map_size,
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187 access_flags.is_interface(),
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188 !host_klass.is_null());
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189
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190 // Allocation
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191 InstanceKlass* ik;
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192 if (rt == REF_NONE) {
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193 if (name == vmSymbols::java_lang_Class()) {
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194 ik = new (loader_data, size, THREAD) InstanceMirrorKlass(
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195 vtable_len, itable_len, static_field_size, nonstatic_oop_map_size, rt,
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196 access_flags, !host_klass.is_null());
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197 } else if (name == vmSymbols::java_lang_ClassLoader() ||
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198 (SystemDictionary::ClassLoader_klass_loaded() &&
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199 super_klass != NULL &&
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200 super_klass->is_subtype_of(SystemDictionary::ClassLoader_klass()))) {
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201 ik = new (loader_data, size, THREAD) InstanceClassLoaderKlass(
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202 vtable_len, itable_len, static_field_size, nonstatic_oop_map_size, rt,
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203 access_flags, !host_klass.is_null());
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204 } else {
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205 // normal class
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206 ik = new (loader_data, size, THREAD) InstanceKlass(
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207 vtable_len, itable_len, static_field_size, nonstatic_oop_map_size, rt,
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208 access_flags, !host_klass.is_null());
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209 }
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210 } else {
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211 // reference klass
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212 ik = new (loader_data, size, THREAD) InstanceRefKlass(
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213 vtable_len, itable_len, static_field_size, nonstatic_oop_map_size, rt,
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214 access_flags, !host_klass.is_null());
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215 }
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216
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217 return ik;
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218 }
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219
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220 InstanceKlass::InstanceKlass(int vtable_len,
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221 int itable_len,
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222 int static_field_size,
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223 int nonstatic_oop_map_size,
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224 ReferenceType rt,
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225 AccessFlags access_flags,
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226 bool is_anonymous) {
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227 No_Safepoint_Verifier no_safepoint; // until k becomes parsable
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228
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229 int size = InstanceKlass::size(vtable_len, itable_len, nonstatic_oop_map_size,
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230 access_flags.is_interface(), is_anonymous);
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231
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232 // The sizes of these these three variables are used for determining the
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233 // size of the instanceKlassOop. It is critical that these are set to the right
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234 // sizes before the first GC, i.e., when we allocate the mirror.
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235 this->set_vtable_length(vtable_len);
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236 this->set_itable_length(itable_len);
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237 this->set_static_field_size(static_field_size);
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238 this->set_nonstatic_oop_map_size(nonstatic_oop_map_size);
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239 this->set_access_flags(access_flags);
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240 this->set_is_anonymous(is_anonymous);
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241 assert(this->size() == size, "wrong size for object");
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242
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243 this->set_array_klasses(NULL);
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244 this->set_methods(NULL);
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245 this->set_method_ordering(NULL);
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246 this->set_local_interfaces(NULL);
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247 this->set_transitive_interfaces(NULL);
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248 this->init_implementor();
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249 this->set_fields(NULL, 0);
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250 this->set_constants(NULL);
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251 this->set_class_loader_data(NULL);
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252 this->set_protection_domain(NULL);
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253 this->set_signers(NULL);
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254 this->set_source_file_name(NULL);
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255 this->set_source_debug_extension(NULL, 0);
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256 this->set_array_name(NULL);
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257 this->set_inner_classes(NULL);
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258 this->set_static_oop_field_count(0);
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259 this->set_nonstatic_field_size(0);
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260 this->set_is_marked_dependent(false);
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261 this->set_init_state(InstanceKlass::allocated);
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262 this->set_init_thread(NULL);
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263 this->set_init_lock(NULL);
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264 this->set_reference_type(rt);
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265 this->set_oop_map_cache(NULL);
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266 this->set_jni_ids(NULL);
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267 this->set_osr_nmethods_head(NULL);
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268 this->set_breakpoints(NULL);
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269 this->init_previous_versions();
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270 this->set_generic_signature(NULL);
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271 this->release_set_methods_jmethod_ids(NULL);
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272 this->release_set_methods_cached_itable_indices(NULL);
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273 this->set_annotations(NULL);
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274 this->set_jvmti_cached_class_field_map(NULL);
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275 this->set_initial_method_idnum(0);
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276
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277 // initialize the non-header words to zero
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278 intptr_t* p = (intptr_t*)this;
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279 for (int index = InstanceKlass::header_size(); index < size; index++) {
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280 p[index] = NULL_WORD;
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281 }
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282
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283 // Set temporary value until parseClassFile updates it with the real instance
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284 // size.
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285 this->set_layout_helper(Klass::instance_layout_helper(0, true));
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286 }
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287
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288
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289 // This function deallocates the metadata and C heap pointers that the
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290 // InstanceKlass points to.
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291 void InstanceKlass::deallocate_contents(ClassLoaderData* loader_data) {
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292
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293 // Orphan the mirror first, CMS thinks it's still live.
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294 java_lang_Class::set_klass(java_mirror(), NULL);
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295
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296 // Need to take this class off the class loader data list.
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297 loader_data->remove_class(this);
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298
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299 // The array_klass for this class is created later, after error handling.
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300 // For class redefinition, we keep the original class so this scratch class
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301 // doesn't have an array class. Either way, assert that there is nothing
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302 // to deallocate.
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303 assert(array_klasses() == NULL, "array classes shouldn't be created for this class yet");
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304
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305 // Release C heap allocated data that this might point to, which includes
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306 // reference counting symbol names.
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307 release_C_heap_structures();
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308
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309 Array<Method*>* ms = methods();
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310 if (ms != Universe::the_empty_method_array()) {
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311 for (int i = 0; i <= methods()->length() -1 ; i++) {
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312 Method* method = methods()->at(i);
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313 // Only want to delete methods that are not executing for RedefineClasses.
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314 // The previous version will point to them so they're not totally dangling
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315 assert (!method->on_stack(), "shouldn't be called with methods on stack");
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316 MetadataFactory::free_metadata(loader_data, method);
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317 }
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318 MetadataFactory::free_array<Method*>(loader_data, methods());
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319 }
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320 set_methods(NULL);
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321
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322 if (method_ordering() != Universe::the_empty_int_array()) {
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323 MetadataFactory::free_array<int>(loader_data, method_ordering());
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324 }
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325 set_method_ordering(NULL);
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326
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327 // This array is in Klass, but remove it with the InstanceKlass since
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328 // this place would be the only caller and it can share memory with transitive
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329 // interfaces.
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330 if (secondary_supers() != Universe::the_empty_klass_array() &&
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331 secondary_supers() != transitive_interfaces()) {
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332 MetadataFactory::free_array<Klass*>(loader_data, secondary_supers());
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333 }
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334 set_secondary_supers(NULL);
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335
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336 // Only deallocate transitive interfaces if not empty, same as super class
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337 // or same as local interfaces. See code in parseClassFile.
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338 Array<Klass*>* ti = transitive_interfaces();
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339 if (ti != Universe::the_empty_klass_array() && ti != local_interfaces()) {
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340 // check that the interfaces don't come from super class
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341 Array<Klass*>* sti = (super() == NULL) ? NULL :
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342 InstanceKlass::cast(super())->transitive_interfaces();
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343 if (ti != sti) {
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344 MetadataFactory::free_array<Klass*>(loader_data, ti);
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345 }
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346 }
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347 set_transitive_interfaces(NULL);
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348
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349 // local interfaces can be empty
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350 Array<Klass*>* li = local_interfaces();
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351 if (li != Universe::the_empty_klass_array()) {
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352 MetadataFactory::free_array<Klass*>(loader_data, li);
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353 }
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354 set_local_interfaces(NULL);
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355
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356 MetadataFactory::free_array<jushort>(loader_data, fields());
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357 set_fields(NULL, 0);
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358
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359 // If a method from a redefined class is using this constant pool, don't
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360 // delete it, yet. The new class's previous version will point to this.
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361 assert (!constants()->on_stack(), "shouldn't be called if anything is onstack");
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362 MetadataFactory::free_metadata(loader_data, constants());
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363 set_constants(NULL);
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364
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365 if (inner_classes() != Universe::the_empty_short_array()) {
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366 MetadataFactory::free_array<jushort>(loader_data, inner_classes());
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367 }
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368 set_inner_classes(NULL);
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369
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370 // Null out Java heap objects, although these won't be walked to keep
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371 // alive once this InstanceKlass is deallocated.
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372 set_protection_domain(NULL);
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373 set_signers(NULL);
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374 set_init_lock(NULL);
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375 set_annotations(NULL);
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376 }
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377
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378 volatile oop InstanceKlass::init_lock() const {
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379 volatile oop lock = _init_lock; // read once
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380 assert((oop)lock != NULL || !is_not_initialized(), // initialized or in_error state
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381 "only fully initialized state can have a null lock");
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382 return lock;
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383 }
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384
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385 // Set the initialization lock to null so the object can be GC'ed. Any racing
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386 // threads to get this lock will see a null lock and will not lock.
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387 // That's okay because they all check for initialized state after getting
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388 // the lock and return.
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389 void InstanceKlass::fence_and_clear_init_lock() {
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390 // make sure previous stores are all done, notably the init_state.
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391 OrderAccess::storestore();
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392 klass_oop_store(&_init_lock, NULL);
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393 assert(!is_not_initialized(), "class must be initialized now");
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394 }
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395
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396
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397 bool InstanceKlass::should_be_initialized() const {
0
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398 return !is_initialized();
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399 }
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400
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401 klassVtable* InstanceKlass::vtable() const {
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402 return new klassVtable(this, start_of_vtable(), vtable_length() / vtableEntry::size());
0
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403 }
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404
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405 klassItable* InstanceKlass::itable() const {
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406 return new klassItable(instanceKlassHandle(this));
0
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407 }
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408
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409 void InstanceKlass::eager_initialize(Thread *thread) {
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410 if (!EagerInitialization) return;
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411
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412 if (this->is_not_initialized()) {
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413 // abort if the the class has a class initializer
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414 if (this->class_initializer() != NULL) return;
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415
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416 // abort if it is java.lang.Object (initialization is handled in genesis)
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417 Klass* super = this->super();
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418 if (super == NULL) return;
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419
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420 // abort if the super class should be initialized
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421 if (!InstanceKlass::cast(super)->is_initialized()) return;
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422
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423 // call body to expose the this pointer
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424 instanceKlassHandle this_oop(thread, this);
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425 eager_initialize_impl(this_oop);
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426 }
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diff changeset
427 }
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diff changeset
428
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diff changeset
429
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430 void InstanceKlass::eager_initialize_impl(instanceKlassHandle this_oop) {
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431 EXCEPTION_MARK;
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432 volatile oop init_lock = this_oop->init_lock();
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433 ObjectLocker ol(init_lock, THREAD, init_lock != NULL);
0
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434
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435 // abort if someone beat us to the initialization
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436 if (!this_oop->is_not_initialized()) return; // note: not equivalent to is_initialized()
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437
4739
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438 ClassState old_state = this_oop->init_state();
0
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439 link_class_impl(this_oop, true, THREAD);
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diff changeset
440 if (HAS_PENDING_EXCEPTION) {
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441 CLEAR_PENDING_EXCEPTION;
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442 // Abort if linking the class throws an exception.
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443
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444 // Use a test to avoid redundantly resetting the state if there's
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445 // no change. Set_init_state() asserts that state changes make
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446 // progress, whereas here we might just be spinning in place.
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447 if( old_state != this_oop->_init_state )
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448 this_oop->set_init_state (old_state);
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449 } else {
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450 // linking successfull, mark class as initialized
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451 this_oop->set_init_state (fully_initialized);
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452 this_oop->fence_and_clear_init_lock();
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453 // trace
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454 if (TraceClassInitialization) {
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455 ResourceMark rm(THREAD);
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456 tty->print_cr("[Initialized %s without side effects]", this_oop->external_name());
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457 }
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458 }
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459 }
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460
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461
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462 // See "The Virtual Machine Specification" section 2.16.5 for a detailed explanation of the class initialization
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463 // process. The step comments refers to the procedure described in that section.
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464 // Note: implementation moved to static method to expose the this pointer.
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465 void InstanceKlass::initialize(TRAPS) {
0
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466 if (this->should_be_initialized()) {
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467 HandleMark hm(THREAD);
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da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
468 instanceKlassHandle this_oop(THREAD, this);
0
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parents:
diff changeset
469 initialize_impl(this_oop, CHECK);
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parents:
diff changeset
470 // Note: at this point the class may be initialized
a61af66fc99e Initial load
duke
parents:
diff changeset
471 // OR it may be in the state of being initialized
a61af66fc99e Initial load
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parents:
diff changeset
472 // in case of recursive initialization!
a61af66fc99e Initial load
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parents:
diff changeset
473 } else {
a61af66fc99e Initial load
duke
parents:
diff changeset
474 assert(is_initialized(), "sanity check");
a61af66fc99e Initial load
duke
parents:
diff changeset
475 }
a61af66fc99e Initial load
duke
parents:
diff changeset
476 }
a61af66fc99e Initial load
duke
parents:
diff changeset
477
a61af66fc99e Initial load
duke
parents:
diff changeset
478
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da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
479 bool InstanceKlass::verify_code(
0
a61af66fc99e Initial load
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parents:
diff changeset
480 instanceKlassHandle this_oop, bool throw_verifyerror, TRAPS) {
a61af66fc99e Initial load
duke
parents:
diff changeset
481 // 1) Verify the bytecodes
a61af66fc99e Initial load
duke
parents:
diff changeset
482 Verifier::Mode mode =
a61af66fc99e Initial load
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parents:
diff changeset
483 throw_verifyerror ? Verifier::ThrowException : Verifier::NoException;
973
ad6585fd4087 6830542: Performance: JVM_DefineClass already verified.
acorn
parents: 964
diff changeset
484 return Verifier::verify(this_oop, mode, this_oop->should_verify_class(), CHECK_false);
0
a61af66fc99e Initial load
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parents:
diff changeset
485 }
a61af66fc99e Initial load
duke
parents:
diff changeset
486
a61af66fc99e Initial load
duke
parents:
diff changeset
487
a61af66fc99e Initial load
duke
parents:
diff changeset
488 // Used exclusively by the shared spaces dump mechanism to prevent
a61af66fc99e Initial load
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parents:
diff changeset
489 // classes mapped into the shared regions in new VMs from appearing linked.
a61af66fc99e Initial load
duke
parents:
diff changeset
490
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da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
491 void InstanceKlass::unlink_class() {
0
a61af66fc99e Initial load
duke
parents:
diff changeset
492 assert(is_linked(), "must be linked");
a61af66fc99e Initial load
duke
parents:
diff changeset
493 _init_state = loaded;
a61af66fc99e Initial load
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parents:
diff changeset
494 }
a61af66fc99e Initial load
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parents:
diff changeset
495
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
496 void InstanceKlass::link_class(TRAPS) {
0
a61af66fc99e Initial load
duke
parents:
diff changeset
497 assert(is_loaded(), "must be loaded");
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parents:
diff changeset
498 if (!is_linked()) {
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
499 HandleMark hm(THREAD);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
500 instanceKlassHandle this_oop(THREAD, this);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
501 link_class_impl(this_oop, true, CHECK);
a61af66fc99e Initial load
duke
parents:
diff changeset
502 }
a61af66fc99e Initial load
duke
parents:
diff changeset
503 }
a61af66fc99e Initial load
duke
parents:
diff changeset
504
a61af66fc99e Initial load
duke
parents:
diff changeset
505 // Called to verify that a class can link during initialization, without
a61af66fc99e Initial load
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parents:
diff changeset
506 // throwing a VerifyError.
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
507 bool InstanceKlass::link_class_or_fail(TRAPS) {
0
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duke
parents:
diff changeset
508 assert(is_loaded(), "must be loaded");
a61af66fc99e Initial load
duke
parents:
diff changeset
509 if (!is_linked()) {
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
510 HandleMark hm(THREAD);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
511 instanceKlassHandle this_oop(THREAD, this);
0
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parents:
diff changeset
512 link_class_impl(this_oop, false, CHECK_false);
a61af66fc99e Initial load
duke
parents:
diff changeset
513 }
a61af66fc99e Initial load
duke
parents:
diff changeset
514 return is_linked();
a61af66fc99e Initial load
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parents:
diff changeset
515 }
a61af66fc99e Initial load
duke
parents:
diff changeset
516
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da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
517 bool InstanceKlass::link_class_impl(
0
a61af66fc99e Initial load
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parents:
diff changeset
518 instanceKlassHandle this_oop, bool throw_verifyerror, TRAPS) {
a61af66fc99e Initial load
duke
parents:
diff changeset
519 // check for error state
a61af66fc99e Initial load
duke
parents:
diff changeset
520 if (this_oop->is_in_error_state()) {
a61af66fc99e Initial load
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parents:
diff changeset
521 ResourceMark rm(THREAD);
a61af66fc99e Initial load
duke
parents:
diff changeset
522 THROW_MSG_(vmSymbols::java_lang_NoClassDefFoundError(),
a61af66fc99e Initial load
duke
parents:
diff changeset
523 this_oop->external_name(), false);
a61af66fc99e Initial load
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parents:
diff changeset
524 }
a61af66fc99e Initial load
duke
parents:
diff changeset
525 // return if already verified
a61af66fc99e Initial load
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parents:
diff changeset
526 if (this_oop->is_linked()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
527 return true;
a61af66fc99e Initial load
duke
parents:
diff changeset
528 }
a61af66fc99e Initial load
duke
parents:
diff changeset
529
a61af66fc99e Initial load
duke
parents:
diff changeset
530 // Timing
a61af66fc99e Initial load
duke
parents:
diff changeset
531 // timer handles recursion
a61af66fc99e Initial load
duke
parents:
diff changeset
532 assert(THREAD->is_Java_thread(), "non-JavaThread in link_class_impl");
a61af66fc99e Initial load
duke
parents:
diff changeset
533 JavaThread* jt = (JavaThread*)THREAD;
a61af66fc99e Initial load
duke
parents:
diff changeset
534
a61af66fc99e Initial load
duke
parents:
diff changeset
535 // link super class before linking this class
a61af66fc99e Initial load
duke
parents:
diff changeset
536 instanceKlassHandle super(THREAD, this_oop->super());
a61af66fc99e Initial load
duke
parents:
diff changeset
537 if (super.not_null()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
538 if (super->is_interface()) { // check if super class is an interface
a61af66fc99e Initial load
duke
parents:
diff changeset
539 ResourceMark rm(THREAD);
a61af66fc99e Initial load
duke
parents:
diff changeset
540 Exceptions::fthrow(
a61af66fc99e Initial load
duke
parents:
diff changeset
541 THREAD_AND_LOCATION,
2177
3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 1972
diff changeset
542 vmSymbols::java_lang_IncompatibleClassChangeError(),
0
a61af66fc99e Initial load
duke
parents:
diff changeset
543 "class %s has interface %s as super class",
a61af66fc99e Initial load
duke
parents:
diff changeset
544 this_oop->external_name(),
a61af66fc99e Initial load
duke
parents:
diff changeset
545 super->external_name()
a61af66fc99e Initial load
duke
parents:
diff changeset
546 );
a61af66fc99e Initial load
duke
parents:
diff changeset
547 return false;
a61af66fc99e Initial load
duke
parents:
diff changeset
548 }
a61af66fc99e Initial load
duke
parents:
diff changeset
549
a61af66fc99e Initial load
duke
parents:
diff changeset
550 link_class_impl(super, throw_verifyerror, CHECK_false);
a61af66fc99e Initial load
duke
parents:
diff changeset
551 }
a61af66fc99e Initial load
duke
parents:
diff changeset
552
a61af66fc99e Initial load
duke
parents:
diff changeset
553 // 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
554 Array<Klass*>* interfaces = this_oop->local_interfaces();
0
a61af66fc99e Initial load
duke
parents:
diff changeset
555 int num_interfaces = interfaces->length();
a61af66fc99e Initial load
duke
parents:
diff changeset
556 for (int index = 0; index < num_interfaces; index++) {
a61af66fc99e Initial load
duke
parents:
diff changeset
557 HandleMark hm(THREAD);
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
558 instanceKlassHandle ih(THREAD, interfaces->at(index));
0
a61af66fc99e Initial load
duke
parents:
diff changeset
559 link_class_impl(ih, throw_verifyerror, CHECK_false);
a61af66fc99e Initial load
duke
parents:
diff changeset
560 }
a61af66fc99e Initial load
duke
parents:
diff changeset
561
a61af66fc99e Initial load
duke
parents:
diff changeset
562 // in case the class is linked in the process of linking its superclasses
a61af66fc99e Initial load
duke
parents:
diff changeset
563 if (this_oop->is_linked()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
564 return true;
a61af66fc99e Initial load
duke
parents:
diff changeset
565 }
a61af66fc99e Initial load
duke
parents:
diff changeset
566
875
6a93908f268f 6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents: 676
diff changeset
567 // 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
568 // the verification time
6a93908f268f 6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents: 676
diff changeset
569 PerfClassTraceTime vmtimer(ClassLoader::perf_class_link_time(),
6a93908f268f 6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents: 676
diff changeset
570 ClassLoader::perf_class_link_selftime(),
6a93908f268f 6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents: 676
diff changeset
571 ClassLoader::perf_classes_linked(),
6a93908f268f 6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents: 676
diff changeset
572 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
573 jt->get_thread_stat()->perf_timers_addr(),
6a93908f268f 6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents: 676
diff changeset
574 PerfClassTraceTime::CLASS_LINK);
6a93908f268f 6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents: 676
diff changeset
575
0
a61af66fc99e Initial load
duke
parents:
diff changeset
576 // verification & rewriting
a61af66fc99e Initial load
duke
parents:
diff changeset
577 {
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
578 volatile oop init_lock = this_oop->init_lock();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
579 ObjectLocker ol(init_lock, THREAD, init_lock != NULL);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
580 // rewritten will have been set if loader constraint error found
a61af66fc99e Initial load
duke
parents:
diff changeset
581 // on an earlier link attempt
a61af66fc99e Initial load
duke
parents:
diff changeset
582 // 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
583
0
a61af66fc99e Initial load
duke
parents:
diff changeset
584 if (!this_oop->is_linked()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
585 if (!this_oop->is_rewritten()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
586 {
a61af66fc99e Initial load
duke
parents:
diff changeset
587 // Timer includes any side effects of class verification (resolution,
a61af66fc99e Initial load
duke
parents:
diff changeset
588 // 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
589 PerfClassTraceTime timer(ClassLoader::perf_class_verify_time(),
6a93908f268f 6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents: 676
diff changeset
590 ClassLoader::perf_class_verify_selftime(),
6a93908f268f 6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents: 676
diff changeset
591 ClassLoader::perf_classes_verified(),
6a93908f268f 6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents: 676
diff changeset
592 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
593 jt->get_thread_stat()->perf_timers_addr(),
6a93908f268f 6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents: 676
diff changeset
594 PerfClassTraceTime::CLASS_VERIFY);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
595 bool verify_ok = verify_code(this_oop, throw_verifyerror, THREAD);
a61af66fc99e Initial load
duke
parents:
diff changeset
596 if (!verify_ok) {
a61af66fc99e Initial load
duke
parents:
diff changeset
597 return false;
a61af66fc99e Initial load
duke
parents:
diff changeset
598 }
a61af66fc99e Initial load
duke
parents:
diff changeset
599 }
a61af66fc99e Initial load
duke
parents:
diff changeset
600
a61af66fc99e Initial load
duke
parents:
diff changeset
601 // Just in case a side-effect of verify linked this class already
a61af66fc99e Initial load
duke
parents:
diff changeset
602 // (which can sometimes happen since the verifier loads classes
a61af66fc99e Initial load
duke
parents:
diff changeset
603 // using custom class loaders, which are free to initialize things)
a61af66fc99e Initial load
duke
parents:
diff changeset
604 if (this_oop->is_linked()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
605 return true;
a61af66fc99e Initial load
duke
parents:
diff changeset
606 }
a61af66fc99e Initial load
duke
parents:
diff changeset
607
a61af66fc99e Initial load
duke
parents:
diff changeset
608 // also sets rewritten
a61af66fc99e Initial load
duke
parents:
diff changeset
609 this_oop->rewrite_class(CHECK_false);
a61af66fc99e Initial load
duke
parents:
diff changeset
610 }
a61af66fc99e Initial load
duke
parents:
diff changeset
611
3748
d3b9f2be46ab 7033141: assert(has_cp_cache(i)) failed: oob
coleenp
parents: 2408
diff changeset
612 // relocate jsrs and link methods after they are all rewritten
d3b9f2be46ab 7033141: assert(has_cp_cache(i)) failed: oob
coleenp
parents: 2408
diff changeset
613 this_oop->relocate_and_link_methods(CHECK_false);
d3b9f2be46ab 7033141: assert(has_cp_cache(i)) failed: oob
coleenp
parents: 2408
diff changeset
614
0
a61af66fc99e Initial load
duke
parents:
diff changeset
615 // Initialize the vtable and interface table after
a61af66fc99e Initial load
duke
parents:
diff changeset
616 // methods have been rewritten since rewrite may
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
617 // fabricate new Method*s.
0
a61af66fc99e Initial load
duke
parents:
diff changeset
618 // also does loader constraint checking
a61af66fc99e Initial load
duke
parents:
diff changeset
619 if (!this_oop()->is_shared()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
620 ResourceMark rm(THREAD);
a61af66fc99e Initial load
duke
parents:
diff changeset
621 this_oop->vtable()->initialize_vtable(true, CHECK_false);
a61af66fc99e Initial load
duke
parents:
diff changeset
622 this_oop->itable()->initialize_itable(true, CHECK_false);
a61af66fc99e Initial load
duke
parents:
diff changeset
623 }
a61af66fc99e Initial load
duke
parents:
diff changeset
624 #ifdef ASSERT
a61af66fc99e Initial load
duke
parents:
diff changeset
625 else {
a61af66fc99e Initial load
duke
parents:
diff changeset
626 ResourceMark rm(THREAD);
a61af66fc99e Initial load
duke
parents:
diff changeset
627 this_oop->vtable()->verify(tty, true);
a61af66fc99e Initial load
duke
parents:
diff changeset
628 // In case itable verification is ever added.
a61af66fc99e Initial load
duke
parents:
diff changeset
629 // this_oop->itable()->verify(tty, true);
a61af66fc99e Initial load
duke
parents:
diff changeset
630 }
a61af66fc99e Initial load
duke
parents:
diff changeset
631 #endif
a61af66fc99e Initial load
duke
parents:
diff changeset
632 this_oop->set_init_state(linked);
a61af66fc99e Initial load
duke
parents:
diff changeset
633 if (JvmtiExport::should_post_class_prepare()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
634 Thread *thread = THREAD;
a61af66fc99e Initial load
duke
parents:
diff changeset
635 assert(thread->is_Java_thread(), "thread->is_Java_thread()");
a61af66fc99e Initial load
duke
parents:
diff changeset
636 JvmtiExport::post_class_prepare((JavaThread *) thread, this_oop());
a61af66fc99e Initial load
duke
parents:
diff changeset
637 }
a61af66fc99e Initial load
duke
parents:
diff changeset
638 }
a61af66fc99e Initial load
duke
parents:
diff changeset
639 }
a61af66fc99e Initial load
duke
parents:
diff changeset
640 return true;
a61af66fc99e Initial load
duke
parents:
diff changeset
641 }
a61af66fc99e Initial load
duke
parents:
diff changeset
642
a61af66fc99e Initial load
duke
parents:
diff changeset
643
a61af66fc99e Initial load
duke
parents:
diff changeset
644 // Rewrite the byte codes of all of the methods of a class.
a61af66fc99e Initial load
duke
parents:
diff changeset
645 // The rewriter must be called exactly once. Rewriting must happen after
a61af66fc99e Initial load
duke
parents:
diff changeset
646 // 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
647 void InstanceKlass::rewrite_class(TRAPS) {
0
a61af66fc99e Initial load
duke
parents:
diff changeset
648 assert(is_loaded(), "must be loaded");
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
649 instanceKlassHandle this_oop(THREAD, this);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
650 if (this_oop->is_rewritten()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
651 assert(this_oop()->is_shared(), "rewriting an unshared class?");
a61af66fc99e Initial load
duke
parents:
diff changeset
652 return;
a61af66fc99e Initial load
duke
parents:
diff changeset
653 }
3748
d3b9f2be46ab 7033141: assert(has_cp_cache(i)) failed: oob
coleenp
parents: 2408
diff changeset
654 Rewriter::rewrite(this_oop, CHECK);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
655 this_oop->set_rewritten();
a61af66fc99e Initial load
duke
parents:
diff changeset
656 }
a61af66fc99e Initial load
duke
parents:
diff changeset
657
3748
d3b9f2be46ab 7033141: assert(has_cp_cache(i)) failed: oob
coleenp
parents: 2408
diff changeset
658 // 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
659 // 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
660 // executed more than once.
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
661 void InstanceKlass::relocate_and_link_methods(TRAPS) {
3748
d3b9f2be46ab 7033141: assert(has_cp_cache(i)) failed: oob
coleenp
parents: 2408
diff changeset
662 assert(is_loaded(), "must be loaded");
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
663 instanceKlassHandle this_oop(THREAD, this);
3748
d3b9f2be46ab 7033141: assert(has_cp_cache(i)) failed: oob
coleenp
parents: 2408
diff changeset
664 Rewriter::relocate_and_link(this_oop, CHECK);
d3b9f2be46ab 7033141: assert(has_cp_cache(i)) failed: oob
coleenp
parents: 2408
diff changeset
665 }
d3b9f2be46ab 7033141: assert(has_cp_cache(i)) failed: oob
coleenp
parents: 2408
diff changeset
666
0
a61af66fc99e Initial load
duke
parents:
diff changeset
667
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
668 void InstanceKlass::initialize_impl(instanceKlassHandle this_oop, TRAPS) {
0
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parents:
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669 // Make sure klass is linked (verified) before initialization
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parents:
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670 // A class could already be verified, since it has been reflected upon.
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diff changeset
671 this_oop->link_class(CHECK);
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parents:
diff changeset
672
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da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
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parents: 6266
diff changeset
673 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
674
e392695de029 6935224: Adding new DTrace probes to work with Palantir
fparain
parents: 1155
diff changeset
675 bool wait = false;
e392695de029 6935224: Adding new DTrace probes to work with Palantir
fparain
parents: 1155
diff changeset
676
0
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parents:
diff changeset
677 // refer to the JVM book page 47 for description of steps
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parents:
diff changeset
678 // Step 1
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
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diff changeset
679 {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
680 volatile oop init_lock = this_oop->init_lock();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
681 ObjectLocker ol(init_lock, THREAD, init_lock != NULL);
0
a61af66fc99e Initial load
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parents:
diff changeset
682
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parents:
diff changeset
683 Thread *self = THREAD; // it's passed the current thread
a61af66fc99e Initial load
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parents:
diff changeset
684
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parents:
diff changeset
685 // Step 2
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parents:
diff changeset
686 // If we were to use wait() instead of waitInterruptibly() then
a61af66fc99e Initial load
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parents:
diff changeset
687 // we might end up throwing IE from link/symbol resolution sites
a61af66fc99e Initial load
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parents:
diff changeset
688 // that aren't expected to throw. This would wreak havoc. See 6320309.
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parents:
diff changeset
689 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
690 wait = true;
0
a61af66fc99e Initial load
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parents:
diff changeset
691 ol.waitUninterruptibly(CHECK);
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parents:
diff changeset
692 }
a61af66fc99e Initial load
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parents:
diff changeset
693
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parents:
diff changeset
694 // Step 3
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fparain
parents: 1155
diff changeset
695 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
696 DTRACE_CLASSINIT_PROBE_WAIT(recursive, InstanceKlass::cast(this_oop()), -1,wait);
0
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parents:
diff changeset
697 return;
1324
e392695de029 6935224: Adding new DTrace probes to work with Palantir
fparain
parents: 1155
diff changeset
698 }
0
a61af66fc99e Initial load
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parents:
diff changeset
699
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parents:
diff changeset
700 // Step 4
1324
e392695de029 6935224: Adding new DTrace probes to work with Palantir
fparain
parents: 1155
diff changeset
701 if (this_oop->is_initialized()) {
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
702 DTRACE_CLASSINIT_PROBE_WAIT(concurrent, InstanceKlass::cast(this_oop()), -1,wait);
0
a61af66fc99e Initial load
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parents:
diff changeset
703 return;
1324
e392695de029 6935224: Adding new DTrace probes to work with Palantir
fparain
parents: 1155
diff changeset
704 }
0
a61af66fc99e Initial load
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parents:
diff changeset
705
a61af66fc99e Initial load
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parents:
diff changeset
706 // Step 5
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parents:
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707 if (this_oop->is_in_error_state()) {
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
708 DTRACE_CLASSINIT_PROBE_WAIT(erroneous, InstanceKlass::cast(this_oop()), -1,wait);
0
a61af66fc99e Initial load
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parents:
diff changeset
709 ResourceMark rm(THREAD);
a61af66fc99e Initial load
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parents:
diff changeset
710 const char* desc = "Could not initialize class ";
a61af66fc99e Initial load
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parents:
diff changeset
711 const char* className = this_oop->external_name();
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parents:
diff changeset
712 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
713 char* message = NEW_RESOURCE_ARRAY(char, msglen);
0
a61af66fc99e Initial load
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parents:
diff changeset
714 if (NULL == message) {
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parents:
diff changeset
715 // Out of memory: can't create detailed error message
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parents:
diff changeset
716 THROW_MSG(vmSymbols::java_lang_NoClassDefFoundError(), className);
a61af66fc99e Initial load
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parents:
diff changeset
717 } else {
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parents:
diff changeset
718 jio_snprintf(message, msglen, "%s%s", desc, className);
a61af66fc99e Initial load
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parents:
diff changeset
719 THROW_MSG(vmSymbols::java_lang_NoClassDefFoundError(), message);
a61af66fc99e Initial load
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parents:
diff changeset
720 }
a61af66fc99e Initial load
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parents:
diff changeset
721 }
a61af66fc99e Initial load
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parents:
diff changeset
722
a61af66fc99e Initial load
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parents:
diff changeset
723 // Step 6
a61af66fc99e Initial load
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parents:
diff changeset
724 this_oop->set_init_state(being_initialized);
a61af66fc99e Initial load
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parents:
diff changeset
725 this_oop->set_init_thread(self);
a61af66fc99e Initial load
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parents:
diff changeset
726 }
a61af66fc99e Initial load
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parents:
diff changeset
727
a61af66fc99e Initial load
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parents:
diff changeset
728 // Step 7
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
729 Klass* super_klass = this_oop->super();
6983
070d523b96a7 8001471: Klass::cast() does nothing
hseigel
parents: 6934
diff changeset
730 if (super_klass != NULL && !this_oop->is_interface() && super_klass->should_be_initialized()) {
070d523b96a7 8001471: Klass::cast() does nothing
hseigel
parents: 6934
diff changeset
731 super_klass->initialize(THREAD);
0
a61af66fc99e Initial load
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parents:
diff changeset
732
a61af66fc99e Initial load
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parents:
diff changeset
733 if (HAS_PENDING_EXCEPTION) {
a61af66fc99e Initial load
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parents:
diff changeset
734 Handle e(THREAD, PENDING_EXCEPTION);
a61af66fc99e Initial load
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parents:
diff changeset
735 CLEAR_PENDING_EXCEPTION;
a61af66fc99e Initial load
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parents:
diff changeset
736 {
a61af66fc99e Initial load
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parents:
diff changeset
737 EXCEPTION_MARK;
a61af66fc99e Initial load
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parents:
diff changeset
738 this_oop->set_initialization_state_and_notify(initialization_error, THREAD); // Locks object, set state, and notify all waiting threads
a61af66fc99e Initial load
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parents:
diff changeset
739 CLEAR_PENDING_EXCEPTION; // ignore any exception thrown, superclass initialization error is thrown below
a61af66fc99e Initial load
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parents:
diff changeset
740 }
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
741 DTRACE_CLASSINIT_PROBE_WAIT(super__failed, InstanceKlass::cast(this_oop()), -1,wait);
0
a61af66fc99e Initial load
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parents:
diff changeset
742 THROW_OOP(e());
a61af66fc99e Initial load
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parents:
diff changeset
743 }
a61af66fc99e Initial load
duke
parents:
diff changeset
744 }
a61af66fc99e Initial load
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parents:
diff changeset
745
6934
4735d2c84362 7200776: Implement default methods in interfaces
kamg
parents: 6831
diff changeset
746 if (this_oop->has_default_methods()) {
4735d2c84362 7200776: Implement default methods in interfaces
kamg
parents: 6831
diff changeset
747 // Step 7.5: initialize any interfaces which have default methods
4735d2c84362 7200776: Implement default methods in interfaces
kamg
parents: 6831
diff changeset
748 for (int i = 0; i < this_oop->local_interfaces()->length(); ++i) {
4735d2c84362 7200776: Implement default methods in interfaces
kamg
parents: 6831
diff changeset
749 Klass* iface = this_oop->local_interfaces()->at(i);
4735d2c84362 7200776: Implement default methods in interfaces
kamg
parents: 6831
diff changeset
750 InstanceKlass* ik = InstanceKlass::cast(iface);
4735d2c84362 7200776: Implement default methods in interfaces
kamg
parents: 6831
diff changeset
751 if (ik->has_default_methods() && ik->should_be_initialized()) {
4735d2c84362 7200776: Implement default methods in interfaces
kamg
parents: 6831
diff changeset
752 ik->initialize(THREAD);
4735d2c84362 7200776: Implement default methods in interfaces
kamg
parents: 6831
diff changeset
753
4735d2c84362 7200776: Implement default methods in interfaces
kamg
parents: 6831
diff changeset
754 if (HAS_PENDING_EXCEPTION) {
4735d2c84362 7200776: Implement default methods in interfaces
kamg
parents: 6831
diff changeset
755 Handle e(THREAD, PENDING_EXCEPTION);
4735d2c84362 7200776: Implement default methods in interfaces
kamg
parents: 6831
diff changeset
756 CLEAR_PENDING_EXCEPTION;
4735d2c84362 7200776: Implement default methods in interfaces
kamg
parents: 6831
diff changeset
757 {
4735d2c84362 7200776: Implement default methods in interfaces
kamg
parents: 6831
diff changeset
758 EXCEPTION_MARK;
4735d2c84362 7200776: Implement default methods in interfaces
kamg
parents: 6831
diff changeset
759 // Locks object, set state, and notify all waiting threads
4735d2c84362 7200776: Implement default methods in interfaces
kamg
parents: 6831
diff changeset
760 this_oop->set_initialization_state_and_notify(
4735d2c84362 7200776: Implement default methods in interfaces
kamg
parents: 6831
diff changeset
761 initialization_error, THREAD);
4735d2c84362 7200776: Implement default methods in interfaces
kamg
parents: 6831
diff changeset
762
4735d2c84362 7200776: Implement default methods in interfaces
kamg
parents: 6831
diff changeset
763 // ignore any exception thrown, superclass initialization error is
4735d2c84362 7200776: Implement default methods in interfaces
kamg
parents: 6831
diff changeset
764 // thrown below
4735d2c84362 7200776: Implement default methods in interfaces
kamg
parents: 6831
diff changeset
765 CLEAR_PENDING_EXCEPTION;
4735d2c84362 7200776: Implement default methods in interfaces
kamg
parents: 6831
diff changeset
766 }
4735d2c84362 7200776: Implement default methods in interfaces
kamg
parents: 6831
diff changeset
767 DTRACE_CLASSINIT_PROBE_WAIT(
4735d2c84362 7200776: Implement default methods in interfaces
kamg
parents: 6831
diff changeset
768 super__failed, InstanceKlass::cast(this_oop()), -1, wait);
4735d2c84362 7200776: Implement default methods in interfaces
kamg
parents: 6831
diff changeset
769 THROW_OOP(e());
4735d2c84362 7200776: Implement default methods in interfaces
kamg
parents: 6831
diff changeset
770 }
4735d2c84362 7200776: Implement default methods in interfaces
kamg
parents: 6831
diff changeset
771 }
4735d2c84362 7200776: Implement default methods in interfaces
kamg
parents: 6831
diff changeset
772 }
4735d2c84362 7200776: Implement default methods in interfaces
kamg
parents: 6831
diff changeset
773 }
4735d2c84362 7200776: Implement default methods in interfaces
kamg
parents: 6831
diff changeset
774
0
a61af66fc99e Initial load
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parents:
diff changeset
775 // Step 8
a61af66fc99e Initial load
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parents:
diff changeset
776 {
a61af66fc99e Initial load
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parents:
diff changeset
777 assert(THREAD->is_Java_thread(), "non-JavaThread in initialize_impl");
a61af66fc99e Initial load
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parents:
diff changeset
778 JavaThread* jt = (JavaThread*)THREAD;
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
779 DTRACE_CLASSINIT_PROBE_WAIT(clinit, InstanceKlass::cast(this_oop()), -1,wait);
0
a61af66fc99e Initial load
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parents:
diff changeset
780 // Timer includes any side effects of class initialization (resolution,
a61af66fc99e Initial load
duke
parents:
diff changeset
781 // 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
782 PerfClassTraceTime timer(ClassLoader::perf_class_init_time(),
6a93908f268f 6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents: 676
diff changeset
783 ClassLoader::perf_class_init_selftime(),
6a93908f268f 6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents: 676
diff changeset
784 ClassLoader::perf_classes_inited(),
6a93908f268f 6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents: 676
diff changeset
785 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
786 jt->get_thread_stat()->perf_timers_addr(),
6a93908f268f 6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents: 676
diff changeset
787 PerfClassTraceTime::CLASS_CLINIT);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
788 this_oop->call_class_initializer(THREAD);
a61af66fc99e Initial load
duke
parents:
diff changeset
789 }
a61af66fc99e Initial load
duke
parents:
diff changeset
790
a61af66fc99e Initial load
duke
parents:
diff changeset
791 // Step 9
a61af66fc99e Initial load
duke
parents:
diff changeset
792 if (!HAS_PENDING_EXCEPTION) {
a61af66fc99e Initial load
duke
parents:
diff changeset
793 this_oop->set_initialization_state_and_notify(fully_initialized, CHECK);
a61af66fc99e Initial load
duke
parents:
diff changeset
794 { ResourceMark rm(THREAD);
a61af66fc99e Initial load
duke
parents:
diff changeset
795 debug_only(this_oop->vtable()->verify(tty, true);)
a61af66fc99e Initial load
duke
parents:
diff changeset
796 }
a61af66fc99e Initial load
duke
parents:
diff changeset
797 }
a61af66fc99e Initial load
duke
parents:
diff changeset
798 else {
a61af66fc99e Initial load
duke
parents:
diff changeset
799 // Step 10 and 11
a61af66fc99e Initial load
duke
parents:
diff changeset
800 Handle e(THREAD, PENDING_EXCEPTION);
a61af66fc99e Initial load
duke
parents:
diff changeset
801 CLEAR_PENDING_EXCEPTION;
a61af66fc99e Initial load
duke
parents:
diff changeset
802 {
a61af66fc99e Initial load
duke
parents:
diff changeset
803 EXCEPTION_MARK;
a61af66fc99e Initial load
duke
parents:
diff changeset
804 this_oop->set_initialization_state_and_notify(initialization_error, THREAD);
a61af66fc99e Initial load
duke
parents:
diff changeset
805 CLEAR_PENDING_EXCEPTION; // ignore any exception thrown, class initialization error is thrown below
a61af66fc99e Initial load
duke
parents:
diff changeset
806 }
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
807 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
808 if (e->is_a(SystemDictionary::Error_klass())) {
0
a61af66fc99e Initial load
duke
parents:
diff changeset
809 THROW_OOP(e());
a61af66fc99e Initial load
duke
parents:
diff changeset
810 } else {
a61af66fc99e Initial load
duke
parents:
diff changeset
811 JavaCallArguments args(e);
2177
3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 1972
diff changeset
812 THROW_ARG(vmSymbols::java_lang_ExceptionInInitializerError(),
3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 1972
diff changeset
813 vmSymbols::throwable_void_signature(),
0
a61af66fc99e Initial load
duke
parents:
diff changeset
814 &args);
a61af66fc99e Initial load
duke
parents:
diff changeset
815 }
a61af66fc99e Initial load
duke
parents:
diff changeset
816 }
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
817 DTRACE_CLASSINIT_PROBE_WAIT(end, InstanceKlass::cast(this_oop()), -1,wait);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
818 }
a61af66fc99e Initial load
duke
parents:
diff changeset
819
a61af66fc99e Initial load
duke
parents:
diff changeset
820
a61af66fc99e Initial load
duke
parents:
diff changeset
821 // 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
822 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
823 instanceKlassHandle kh(THREAD, this);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
824 set_initialization_state_and_notify_impl(kh, state, CHECK);
a61af66fc99e Initial load
duke
parents:
diff changeset
825 }
a61af66fc99e Initial load
duke
parents:
diff changeset
826
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
827 void InstanceKlass::set_initialization_state_and_notify_impl(instanceKlassHandle this_oop, ClassState state, TRAPS) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
828 volatile oop init_lock = this_oop->init_lock();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
829 ObjectLocker ol(init_lock, THREAD, init_lock != NULL);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
830 this_oop->set_init_state(state);
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
831 this_oop->fence_and_clear_init_lock();
0
a61af66fc99e Initial load
duke
parents:
diff changeset
832 ol.notify_all(CHECK);
a61af66fc99e Initial load
duke
parents:
diff changeset
833 }
a61af66fc99e Initial load
duke
parents:
diff changeset
834
5998
49036505ab5f 7154670: The instanceKlass _implementors[] and _nof_implementors are not needed for non-interface klass.
jiangli
parents: 5969
diff changeset
835 // 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
836 // 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
837 // 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
838 // 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
839 // NULL - no implementor
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
840 // 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
841 // 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
842 //
49036505ab5f 7154670: The instanceKlass _implementors[] and _nof_implementors are not needed for non-interface klass.
jiangli
parents: 5969
diff changeset
843 // The _implementor field only exists for interfaces.
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
844 void InstanceKlass::add_implementor(Klass* k) {
0
a61af66fc99e Initial load
duke
parents:
diff changeset
845 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
846 assert(is_interface(), "not interface");
0
a61af66fc99e Initial load
duke
parents:
diff changeset
847 // Filter out my subinterfaces.
a61af66fc99e Initial load
duke
parents:
diff changeset
848 // (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
849 if (InstanceKlass::cast(k)->is_interface()) return;
0
a61af66fc99e Initial load
duke
parents:
diff changeset
850
a61af66fc99e Initial load
duke
parents:
diff changeset
851 // Filter out subclasses whose supers already implement me.
a61af66fc99e Initial load
duke
parents:
diff changeset
852 // (Note: CHA must walk subclasses of direct implementors
a61af66fc99e Initial load
duke
parents:
diff changeset
853 // in order to locate indirect implementors.)
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
854 Klass* sk = InstanceKlass::cast(k)->super();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
855 if (sk != NULL && InstanceKlass::cast(sk)->implements_interface(this))
0
a61af66fc99e Initial load
duke
parents:
diff changeset
856 // We only need to check one immediate superclass, since the
a61af66fc99e Initial load
duke
parents:
diff changeset
857 // implements_interface query looks at transitive_interfaces.
a61af66fc99e Initial load
duke
parents:
diff changeset
858 // Any supers of the super have the same (or fewer) transitive_interfaces.
a61af66fc99e Initial load
duke
parents:
diff changeset
859 return;
a61af66fc99e Initial load
duke
parents:
diff changeset
860
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
861 Klass* ik = implementor();
5998
49036505ab5f 7154670: The instanceKlass _implementors[] and _nof_implementors are not needed for non-interface klass.
jiangli
parents: 5969
diff changeset
862 if (ik == NULL) {
49036505ab5f 7154670: The instanceKlass _implementors[] and _nof_implementors are not needed for non-interface klass.
jiangli
parents: 5969
diff changeset
863 set_implementor(k);
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
864 } 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
865 // 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
866 // more than one implementors.
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
867 set_implementor(this);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
868 }
a61af66fc99e Initial load
duke
parents:
diff changeset
869
a61af66fc99e Initial load
duke
parents:
diff changeset
870 // The implementor also implements the transitive_interfaces
a61af66fc99e Initial load
duke
parents:
diff changeset
871 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
872 InstanceKlass::cast(local_interfaces()->at(index))->add_implementor(k);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
873 }
a61af66fc99e Initial load
duke
parents:
diff changeset
874 }
a61af66fc99e Initial load
duke
parents:
diff changeset
875
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
876 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
877 if (is_interface()) {
49036505ab5f 7154670: The instanceKlass _implementors[] and _nof_implementors are not needed for non-interface klass.
jiangli
parents: 5969
diff changeset
878 set_implementor(NULL);
49036505ab5f 7154670: The instanceKlass _implementors[] and _nof_implementors are not needed for non-interface klass.
jiangli
parents: 5969
diff changeset
879 }
0
a61af66fc99e Initial load
duke
parents:
diff changeset
880 }
a61af66fc99e Initial load
duke
parents:
diff changeset
881
a61af66fc99e Initial load
duke
parents:
diff changeset
882
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
883 void InstanceKlass::process_interfaces(Thread *thread) {
0
a61af66fc99e Initial load
duke
parents:
diff changeset
884 // 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
885 Klass* this_as_klass_oop = this;
0
a61af66fc99e Initial load
duke
parents:
diff changeset
886 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
887 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
888 InstanceKlass* interf = InstanceKlass::cast(local_interfaces()->at(i));
0
a61af66fc99e Initial load
duke
parents:
diff changeset
889 assert(interf->is_interface(), "expected interface");
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
890 interf->add_implementor(this_as_klass_oop);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
891 }
a61af66fc99e Initial load
duke
parents:
diff changeset
892 }
a61af66fc99e Initial load
duke
parents:
diff changeset
893
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
894 bool InstanceKlass::can_be_primary_super_slow() const {
0
a61af66fc99e Initial load
duke
parents:
diff changeset
895 if (is_interface())
a61af66fc99e Initial load
duke
parents:
diff changeset
896 return false;
a61af66fc99e Initial load
duke
parents:
diff changeset
897 else
a61af66fc99e Initial load
duke
parents:
diff changeset
898 return Klass::can_be_primary_super_slow();
a61af66fc99e Initial load
duke
parents:
diff changeset
899 }
a61af66fc99e Initial load
duke
parents:
diff changeset
900
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
901 GrowableArray<Klass*>* InstanceKlass::compute_secondary_supers(int num_extra_slots) {
0
a61af66fc99e Initial load
duke
parents:
diff changeset
902 // The secondaries are the implemented interfaces.
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
903 InstanceKlass* ik = InstanceKlass::cast(this);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
904 Array<Klass*>* interfaces = ik->transitive_interfaces();
0
a61af66fc99e Initial load
duke
parents:
diff changeset
905 int num_secondaries = num_extra_slots + interfaces->length();
a61af66fc99e Initial load
duke
parents:
diff changeset
906 if (num_secondaries == 0) {
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
907 // Must share this for correct bootstrapping!
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
908 set_secondary_supers(Universe::the_empty_klass_array());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
909 return NULL;
0
a61af66fc99e Initial load
duke
parents:
diff changeset
910 } else if (num_extra_slots == 0) {
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
911 // 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
912 // 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
913 set_secondary_supers(interfaces);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
914 return NULL;
0
a61af66fc99e Initial load
duke
parents:
diff changeset
915 } else {
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
916 // 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
917 // into the secondary super list with extra slots.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
918 GrowableArray<Klass*>* secondaries = new GrowableArray<Klass*>(interfaces->length());
0
a61af66fc99e Initial load
duke
parents:
diff changeset
919 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
920 secondaries->push(interfaces->at(i));
0
a61af66fc99e Initial load
duke
parents:
diff changeset
921 }
a61af66fc99e Initial load
duke
parents:
diff changeset
922 return secondaries;
a61af66fc99e Initial load
duke
parents:
diff changeset
923 }
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 bool InstanceKlass::compute_is_subtype_of(Klass* k) {
6983
070d523b96a7 8001471: Klass::cast() does nothing
hseigel
parents: 6934
diff changeset
927 if (k->is_interface()) {
0
a61af66fc99e Initial load
duke
parents:
diff changeset
928 return implements_interface(k);
a61af66fc99e Initial load
duke
parents:
diff changeset
929 } else {
a61af66fc99e Initial load
duke
parents:
diff changeset
930 return Klass::compute_is_subtype_of(k);
a61af66fc99e Initial load
duke
parents:
diff changeset
931 }
a61af66fc99e Initial load
duke
parents:
diff changeset
932 }
a61af66fc99e Initial load
duke
parents:
diff changeset
933
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
934 bool InstanceKlass::implements_interface(Klass* k) const {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
935 if (this == k) return true;
6983
070d523b96a7 8001471: Klass::cast() does nothing
hseigel
parents: 6934
diff changeset
936 assert(k->is_interface(), "should be an interface class");
0
a61af66fc99e Initial load
duke
parents:
diff changeset
937 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
938 if (transitive_interfaces()->at(i) == k) {
0
a61af66fc99e Initial load
duke
parents:
diff changeset
939 return true;
a61af66fc99e Initial load
duke
parents:
diff changeset
940 }
a61af66fc99e Initial load
duke
parents:
diff changeset
941 }
a61af66fc99e Initial load
duke
parents:
diff changeset
942 return false;
a61af66fc99e Initial load
duke
parents:
diff changeset
943 }
a61af66fc99e Initial load
duke
parents:
diff changeset
944
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
945 objArrayOop InstanceKlass::allocate_objArray(int n, int length, TRAPS) {
0
a61af66fc99e Initial load
duke
parents:
diff changeset
946 if (length < 0) THROW_0(vmSymbols::java_lang_NegativeArraySizeException());
a61af66fc99e Initial load
duke
parents:
diff changeset
947 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
948 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
949 JvmtiExport::post_array_size_exhausted();
0
a61af66fc99e Initial load
duke
parents:
diff changeset
950 THROW_OOP_0(Universe::out_of_memory_error_array_size());
a61af66fc99e Initial load
duke
parents:
diff changeset
951 }
a61af66fc99e Initial load
duke
parents:
diff changeset
952 int size = objArrayOopDesc::object_size(length);
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
953 Klass* ak = array_klass(n, CHECK_NULL);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
954 KlassHandle h_ak (THREAD, ak);
a61af66fc99e Initial load
duke
parents:
diff changeset
955 objArrayOop o =
a61af66fc99e Initial load
duke
parents:
diff changeset
956 (objArrayOop)CollectedHeap::array_allocate(h_ak, size, length, CHECK_NULL);
a61af66fc99e Initial load
duke
parents:
diff changeset
957 return o;
a61af66fc99e Initial load
duke
parents:
diff changeset
958 }
a61af66fc99e Initial load
duke
parents:
diff changeset
959
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
960 instanceOop InstanceKlass::register_finalizer(instanceOop i, TRAPS) {
0
a61af66fc99e Initial load
duke
parents:
diff changeset
961 if (TraceFinalizerRegistration) {
a61af66fc99e Initial load
duke
parents:
diff changeset
962 tty->print("Registered ");
a61af66fc99e Initial load
duke
parents:
diff changeset
963 i->print_value_on(tty);
a61af66fc99e Initial load
duke
parents:
diff changeset
964 tty->print_cr(" (" INTPTR_FORMAT ") as finalizable", (address)i);
a61af66fc99e Initial load
duke
parents:
diff changeset
965 }
a61af66fc99e Initial load
duke
parents:
diff changeset
966 instanceHandle h_i(THREAD, i);
a61af66fc99e Initial load
duke
parents:
diff changeset
967 // Pass the handle as argument, JavaCalls::call expects oop as jobjects
a61af66fc99e Initial load
duke
parents:
diff changeset
968 JavaValue result(T_VOID);
a61af66fc99e Initial load
duke
parents:
diff changeset
969 JavaCallArguments args(h_i);
a61af66fc99e Initial load
duke
parents:
diff changeset
970 methodHandle mh (THREAD, Universe::finalizer_register_method());
a61af66fc99e Initial load
duke
parents:
diff changeset
971 JavaCalls::call(&result, mh, &args, CHECK_NULL);
a61af66fc99e Initial load
duke
parents:
diff changeset
972 return h_i();
a61af66fc99e Initial load
duke
parents:
diff changeset
973 }
a61af66fc99e Initial load
duke
parents:
diff changeset
974
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
975 instanceOop InstanceKlass::allocate_instance(TRAPS) {
0
a61af66fc99e Initial load
duke
parents:
diff changeset
976 bool has_finalizer_flag = has_finalizer(); // Query before possible GC
a61af66fc99e Initial load
duke
parents:
diff changeset
977 int size = size_helper(); // Query before forming handle.
a61af66fc99e Initial load
duke
parents:
diff changeset
978
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
979 KlassHandle h_k(THREAD, this);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
980
a61af66fc99e Initial load
duke
parents:
diff changeset
981 instanceOop i;
a61af66fc99e Initial load
duke
parents:
diff changeset
982
a61af66fc99e Initial load
duke
parents:
diff changeset
983 i = (instanceOop)CollectedHeap::obj_allocate(h_k, size, CHECK_NULL);
a61af66fc99e Initial load
duke
parents:
diff changeset
984 if (has_finalizer_flag && !RegisterFinalizersAtInit) {
a61af66fc99e Initial load
duke
parents:
diff changeset
985 i = register_finalizer(i, CHECK_NULL);
a61af66fc99e Initial load
duke
parents:
diff changeset
986 }
a61af66fc99e Initial load
duke
parents:
diff changeset
987 return i;
a61af66fc99e Initial load
duke
parents:
diff changeset
988 }
a61af66fc99e Initial load
duke
parents:
diff changeset
989
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
990 void InstanceKlass::check_valid_for_instantiation(bool throwError, TRAPS) {
0
a61af66fc99e Initial load
duke
parents:
diff changeset
991 if (is_interface() || is_abstract()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
992 ResourceMark rm(THREAD);
a61af66fc99e Initial load
duke
parents:
diff changeset
993 THROW_MSG(throwError ? vmSymbols::java_lang_InstantiationError()
a61af66fc99e Initial load
duke
parents:
diff changeset
994 : vmSymbols::java_lang_InstantiationException(), external_name());
a61af66fc99e Initial load
duke
parents:
diff changeset
995 }
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
996 if (this == SystemDictionary::Class_klass()) {
0
a61af66fc99e Initial load
duke
parents:
diff changeset
997 ResourceMark rm(THREAD);
a61af66fc99e Initial load
duke
parents:
diff changeset
998 THROW_MSG(throwError ? vmSymbols::java_lang_IllegalAccessError()
a61af66fc99e Initial load
duke
parents:
diff changeset
999 : vmSymbols::java_lang_IllegalAccessException(), external_name());
a61af66fc99e Initial load
duke
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 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
1004 instanceKlassHandle this_oop(THREAD, this);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1005 return array_klass_impl(this_oop, or_null, n, THREAD);
a61af66fc99e Initial load
duke
parents:
diff changeset
1006 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1007
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1008 Klass* InstanceKlass::array_klass_impl(instanceKlassHandle this_oop, bool or_null, int n, TRAPS) {
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1009 if (this_oop->array_klasses() == NULL) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1010 if (or_null) return NULL;
a61af66fc99e Initial load
duke
parents:
diff changeset
1011
a61af66fc99e Initial load
duke
parents:
diff changeset
1012 ResourceMark rm;
a61af66fc99e Initial load
duke
parents:
diff changeset
1013 JavaThread *jt = (JavaThread *)THREAD;
a61af66fc99e Initial load
duke
parents:
diff changeset
1014 {
a61af66fc99e Initial load
duke
parents:
diff changeset
1015 // Atomic creation of array_klasses
a61af66fc99e Initial load
duke
parents:
diff changeset
1016 MutexLocker mc(Compile_lock, THREAD); // for vtables
a61af66fc99e Initial load
duke
parents:
diff changeset
1017 MutexLocker ma(MultiArray_lock, THREAD);
a61af66fc99e Initial load
duke
parents:
diff changeset
1018
a61af66fc99e Initial load
duke
parents:
diff changeset
1019 // Check if update has already taken place
a61af66fc99e Initial load
duke
parents:
diff changeset
1020 if (this_oop->array_klasses() == NULL) {
6831
d8ce2825b193 8000213: NPG: Should have renamed arrayKlass and typeArrayKlass
coleenp
parents: 6735
diff changeset
1021 Klass* k = ObjArrayKlass::allocate_objArray_klass(this_oop->class_loader_data(), 1, this_oop, CHECK_NULL);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1022 this_oop->set_array_klasses(k);
a61af66fc99e Initial load
duke
parents:
diff changeset
1023 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1024 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1025 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1026 // _this will always be set at this point
6831
d8ce2825b193 8000213: NPG: Should have renamed arrayKlass and typeArrayKlass
coleenp
parents: 6735
diff changeset
1027 ObjArrayKlass* oak = (ObjArrayKlass*)this_oop->array_klasses();
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1028 if (or_null) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1029 return oak->array_klass_or_null(n);
a61af66fc99e Initial load
duke
parents:
diff changeset
1030 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1031 return oak->array_klass(n, CHECK_NULL);
a61af66fc99e Initial load
duke
parents:
diff changeset
1032 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1033
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1034 Klass* InstanceKlass::array_klass_impl(bool or_null, TRAPS) {
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1035 return array_klass_impl(or_null, 1, THREAD);
a61af66fc99e Initial load
duke
parents:
diff changeset
1036 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1037
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1038 void InstanceKlass::call_class_initializer(TRAPS) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1039 instanceKlassHandle ik (THREAD, this);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1040 call_class_initializer_impl(ik, THREAD);
a61af66fc99e Initial load
duke
parents:
diff changeset
1041 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1042
a61af66fc99e Initial load
duke
parents:
diff changeset
1043 static int call_class_initializer_impl_counter = 0; // for debugging
a61af66fc99e Initial load
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parents:
diff changeset
1044
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1045 Method* InstanceKlass::class_initializer() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1046 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
1047 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
1048 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
1049 return clinit;
dbad0519a1c4 6845426: non-static <clinit> method with no args is called during the class initialization process
kamg
parents: 2227
diff changeset
1050 }
dbad0519a1c4 6845426: non-static <clinit> method with no args is called during the class initialization process
kamg
parents: 2227
diff changeset
1051 return NULL;
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1052 }
a61af66fc99e Initial load
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parents:
diff changeset
1053
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da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1054 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
1055 if (ReplayCompiles &&
bd7a7ce2e264 6830717: replay of compilations would help with debugging
minqi
parents: 6934
diff changeset
1056 (ReplaySuppressInitializers == 1 ||
bd7a7ce2e264 6830717: replay of compilations would help with debugging
minqi
parents: 6934
diff changeset
1057 ReplaySuppressInitializers >= 2 && this_oop->class_loader() != NULL)) {
bd7a7ce2e264 6830717: replay of compilations would help with debugging
minqi
parents: 6934
diff changeset
1058 // 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
1059 return;
bd7a7ce2e264 6830717: replay of compilations would help with debugging
minqi
parents: 6934
diff changeset
1060 }
bd7a7ce2e264 6830717: replay of compilations would help with debugging
minqi
parents: 6934
diff changeset
1061
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1062 methodHandle h_method(THREAD, this_oop->class_initializer());
a61af66fc99e Initial load
duke
parents:
diff changeset
1063 assert(!this_oop->is_initialized(), "we cannot initialize twice");
a61af66fc99e Initial load
duke
parents:
diff changeset
1064 if (TraceClassInitialization) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1065 tty->print("%d Initializing ", call_class_initializer_impl_counter++);
a61af66fc99e Initial load
duke
parents:
diff changeset
1066 this_oop->name()->print_value();
a61af66fc99e Initial load
duke
parents:
diff changeset
1067 tty->print_cr("%s (" INTPTR_FORMAT ")", h_method() == NULL ? "(no method)" : "", (address)this_oop());
a61af66fc99e Initial load
duke
parents:
diff changeset
1068 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1069 if (h_method() != NULL) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1070 JavaCallArguments args; // No arguments
a61af66fc99e Initial load
duke
parents:
diff changeset
1071 JavaValue result(T_VOID);
a61af66fc99e Initial load
duke
parents:
diff changeset
1072 JavaCalls::call(&result, h_method, &args, CHECK); // Static call (no args)
a61af66fc99e Initial load
duke
parents:
diff changeset
1073 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1074 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1075
a61af66fc99e Initial load
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parents:
diff changeset
1076
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da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1077 void InstanceKlass::mask_for(methodHandle method, int bci,
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1078 InterpreterOopMap* entry_for) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1079 // Dirty read, then double-check under a lock.
a61af66fc99e Initial load
duke
parents:
diff changeset
1080 if (_oop_map_cache == NULL) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1081 // Otherwise, allocate a new one.
a61af66fc99e Initial load
duke
parents:
diff changeset
1082 MutexLocker x(OopMapCacheAlloc_lock);
a61af66fc99e Initial load
duke
parents:
diff changeset
1083 // First time use. Allocate a cache in C heap
a61af66fc99e Initial load
duke
parents:
diff changeset
1084 if (_oop_map_cache == NULL) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1085 _oop_map_cache = new OopMapCache();
a61af66fc99e Initial load
duke
parents:
diff changeset
1086 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1087 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1088 // _oop_map_cache is constant after init; lookup below does is own locking.
a61af66fc99e Initial load
duke
parents:
diff changeset
1089 _oop_map_cache->lookup(method, bci, entry_for);
a61af66fc99e Initial load
duke
parents:
diff changeset
1090 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1091
a61af66fc99e Initial load
duke
parents:
diff changeset
1092
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1093 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
1094 for (JavaFieldStream fs(this); !fs.done(); fs.next()) {
3938
e6b1331a51d2 7086585: make Java field injection more flexible
never
parents: 3852
diff changeset
1095 Symbol* f_name = fs.name();
e6b1331a51d2 7086585: make Java field injection more flexible
never
parents: 3852
diff changeset
1096 Symbol* f_sig = fs.signature();
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1097 if (f_name == name && f_sig == sig) {
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1098 fd->initialize(const_cast<InstanceKlass*>(this), fs.index());
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1099 return true;
a61af66fc99e Initial load
duke
parents:
diff changeset
1100 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1101 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1102 return false;
a61af66fc99e Initial load
duke
parents:
diff changeset
1103 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1104
a61af66fc99e Initial load
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parents:
diff changeset
1105
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1106 Klass* InstanceKlass::find_interface_field(Symbol* name, Symbol* sig, fieldDescriptor* fd) const {
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1107 const int n = local_interfaces()->length();
a61af66fc99e Initial load
duke
parents:
diff changeset
1108 for (int i = 0; i < n; i++) {
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1109 Klass* intf1 = local_interfaces()->at(i);
6983
070d523b96a7 8001471: Klass::cast() does nothing
hseigel
parents: 6934
diff changeset
1110 assert(intf1->is_interface(), "just checking type");
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1111 // search for field in current interface
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1112 if (InstanceKlass::cast(intf1)->find_local_field(name, sig, fd)) {
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1113 assert(fd->is_static(), "interface field must be static");
a61af66fc99e Initial load
duke
parents:
diff changeset
1114 return intf1;
a61af66fc99e Initial load
duke
parents:
diff changeset
1115 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1116 // search for field in direct superinterfaces
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1117 Klass* intf2 = InstanceKlass::cast(intf1)->find_interface_field(name, sig, fd);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1118 if (intf2 != NULL) return intf2;
a61af66fc99e Initial load
duke
parents:
diff changeset
1119 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1120 // otherwise field lookup fails
a61af66fc99e Initial load
duke
parents:
diff changeset
1121 return NULL;
a61af66fc99e Initial load
duke
parents:
diff changeset
1122 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1123
a61af66fc99e Initial load
duke
parents:
diff changeset
1124
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1125 Klass* InstanceKlass::find_field(Symbol* name, Symbol* sig, fieldDescriptor* fd) const {
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1126 // search order according to newest JVM spec (5.4.3.2, p.167).
a61af66fc99e Initial load
duke
parents:
diff changeset
1127 // 1) search for field in current klass
a61af66fc99e Initial load
duke
parents:
diff changeset
1128 if (find_local_field(name, sig, fd)) {
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1129 return const_cast<InstanceKlass*>(this);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1130 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1131 // 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
1132 { Klass* intf = find_interface_field(name, sig, fd);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1133 if (intf != NULL) return intf;
a61af66fc99e Initial load
duke
parents:
diff changeset
1134 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1135 // 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
1136 { Klass* supr = super();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1137 if (supr != NULL) return InstanceKlass::cast(supr)->find_field(name, sig, fd);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1138 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1139 // 4) otherwise field lookup fails
a61af66fc99e Initial load
duke
parents:
diff changeset
1140 return NULL;
a61af66fc99e Initial load
duke
parents:
diff changeset
1141 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1142
a61af66fc99e Initial load
duke
parents:
diff changeset
1143
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1144 Klass* InstanceKlass::find_field(Symbol* name, Symbol* sig, bool is_static, fieldDescriptor* fd) const {
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1145 // search order according to newest JVM spec (5.4.3.2, p.167).
a61af66fc99e Initial load
duke
parents:
diff changeset
1146 // 1) search for field in current klass
a61af66fc99e Initial load
duke
parents:
diff changeset
1147 if (find_local_field(name, sig, fd)) {
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1148 if (fd->is_static() == is_static) return const_cast<InstanceKlass*>(this);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1149 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1150 // 2) search for field recursively in direct superinterfaces
a61af66fc99e Initial load
duke
parents:
diff changeset
1151 if (is_static) {
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1152 Klass* intf = find_interface_field(name, sig, fd);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1153 if (intf != NULL) return intf;
a61af66fc99e Initial load
duke
parents:
diff changeset
1154 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1155 // 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
1156 { Klass* supr = super();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1157 if (supr != NULL) return InstanceKlass::cast(supr)->find_field(name, sig, is_static, fd);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1158 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1159 // 4) otherwise field lookup fails
a61af66fc99e Initial load
duke
parents:
diff changeset
1160 return NULL;
a61af66fc99e Initial load
duke
parents:
diff changeset
1161 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1162
a61af66fc99e Initial load
duke
parents:
diff changeset
1163
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1164 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
1165 for (JavaFieldStream fs(this); !fs.done(); fs.next()) {
3938
e6b1331a51d2 7086585: make Java field injection more flexible
never
parents: 3852
diff changeset
1166 if (fs.offset() == offset) {
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1167 fd->initialize(const_cast<InstanceKlass*>(this), fs.index());
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1168 if (fd->is_static() == is_static) return true;
a61af66fc99e Initial load
duke
parents:
diff changeset
1169 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1170 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1171 return false;
a61af66fc99e Initial load
duke
parents:
diff changeset
1172 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1173
a61af66fc99e Initial load
duke
parents:
diff changeset
1174
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1175 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
1176 Klass* klass = const_cast<InstanceKlass*>(this);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1177 while (klass != NULL) {
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1178 if (InstanceKlass::cast(klass)->find_local_field_from_offset(offset, is_static, fd)) {
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1179 return true;
a61af66fc99e Initial load
duke
parents:
diff changeset
1180 }
6983
070d523b96a7 8001471: Klass::cast() does nothing
hseigel
parents: 6934
diff changeset
1181 klass = klass->super();
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1182 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1183 return false;
a61af66fc99e Initial load
duke
parents:
diff changeset
1184 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1185
a61af66fc99e Initial load
duke
parents:
diff changeset
1186
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1187 void InstanceKlass::methods_do(void f(Method* method)) {
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1188 int len = methods()->length();
a61af66fc99e Initial load
duke
parents:
diff changeset
1189 for (int index = 0; index < len; index++) {
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1190 Method* m = methods()->at(index);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1191 assert(m->is_method(), "must be method");
a61af66fc99e Initial load
duke
parents:
diff changeset
1192 f(m);
a61af66fc99e Initial load
duke
parents:
diff changeset
1193 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1194 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1195
2376
c7f3d0b4570f 7017732: move static fields into Class to prepare for perm gen removal
never
parents: 2357
diff changeset
1196
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1197 void InstanceKlass::do_local_static_fields(FieldClosure* cl) {
3938
e6b1331a51d2 7086585: make Java field injection more flexible
never
parents: 3852
diff changeset
1198 for (JavaFieldStream fs(this); !fs.done(); fs.next()) {
e6b1331a51d2 7086585: make Java field injection more flexible
never
parents: 3852
diff changeset
1199 if (fs.access_flags().is_static()) {
e6b1331a51d2 7086585: make Java field injection more flexible
never
parents: 3852
diff changeset
1200 fieldDescriptor fd;
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1201 fd.initialize(this, fs.index());
3938
e6b1331a51d2 7086585: make Java field injection more flexible
never
parents: 3852
diff changeset
1202 cl->do_field(&fd);
e6b1331a51d2 7086585: make Java field injection more flexible
never
parents: 3852
diff changeset
1203 }
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1204 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1205 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1206
a61af66fc99e Initial load
duke
parents:
diff changeset
1207
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1208 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
1209 instanceKlassHandle h_this(THREAD, this);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1210 do_local_static_fields_impl(h_this, f, CHECK);
a61af66fc99e Initial load
duke
parents:
diff changeset
1211 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1212
a61af66fc99e Initial load
duke
parents:
diff changeset
1213
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1214 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
1215 for (JavaFieldStream fs(this_oop()); !fs.done(); fs.next()) {
e6b1331a51d2 7086585: make Java field injection more flexible
never
parents: 3852
diff changeset
1216 if (fs.access_flags().is_static()) {
e6b1331a51d2 7086585: make Java field injection more flexible
never
parents: 3852
diff changeset
1217 fieldDescriptor fd;
e6b1331a51d2 7086585: make Java field injection more flexible
never
parents: 3852
diff changeset
1218 fd.initialize(this_oop(), fs.index());
e6b1331a51d2 7086585: make Java field injection more flexible
never
parents: 3852
diff changeset
1219 f(&fd, CHECK);
e6b1331a51d2 7086585: make Java field injection more flexible
never
parents: 3852
diff changeset
1220 }
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1221 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1222 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1223
a61af66fc99e Initial load
duke
parents:
diff changeset
1224
44
52fed2ec0afb 6667620: (Escape Analysis) fix deoptimization for scalar replaced objects
kvn
parents: 0
diff changeset
1225 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
1226 return a[0] - b[0];
52fed2ec0afb 6667620: (Escape Analysis) fix deoptimization for scalar replaced objects
kvn
parents: 0
diff changeset
1227 }
52fed2ec0afb 6667620: (Escape Analysis) fix deoptimization for scalar replaced objects
kvn
parents: 0
diff changeset
1228
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1229 void InstanceKlass::do_nonstatic_fields(FieldClosure* cl) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1230 InstanceKlass* super = superklass();
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1231 if (super != NULL) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1232 super->do_nonstatic_fields(cl);
a61af66fc99e Initial load
duke
parents:
diff changeset
1233 }
44
52fed2ec0afb 6667620: (Escape Analysis) fix deoptimization for scalar replaced objects
kvn
parents: 0
diff changeset
1234 fieldDescriptor fd;
3938
e6b1331a51d2 7086585: make Java field injection more flexible
never
parents: 3852
diff changeset
1235 int length = java_fields_count();
44
52fed2ec0afb 6667620: (Escape Analysis) fix deoptimization for scalar replaced objects
kvn
parents: 0
diff changeset
1236 // In DebugInfo nonstatic fields are sorted by offset.
6197
d2a62e0f25eb 6995781: Native Memory Tracking (Phase 1)
zgu
parents: 6038
diff changeset
1237 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
1238 int j = 0;
3938
e6b1331a51d2 7086585: make Java field injection more flexible
never
parents: 3852
diff changeset
1239 for (int i = 0; i < length; i += 1) {
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1240 fd.initialize(this, i);
44
52fed2ec0afb 6667620: (Escape Analysis) fix deoptimization for scalar replaced objects
kvn
parents: 0
diff changeset
1241 if (!fd.is_static()) {
52fed2ec0afb 6667620: (Escape Analysis) fix deoptimization for scalar replaced objects
kvn
parents: 0
diff changeset
1242 fields_sorted[j + 0] = fd.offset();
52fed2ec0afb 6667620: (Escape Analysis) fix deoptimization for scalar replaced objects
kvn
parents: 0
diff changeset
1243 fields_sorted[j + 1] = i;
52fed2ec0afb 6667620: (Escape Analysis) fix deoptimization for scalar replaced objects
kvn
parents: 0
diff changeset
1244 j += 2;
52fed2ec0afb 6667620: (Escape Analysis) fix deoptimization for scalar replaced objects
kvn
parents: 0
diff changeset
1245 }
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1246 }
44
52fed2ec0afb 6667620: (Escape Analysis) fix deoptimization for scalar replaced objects
kvn
parents: 0
diff changeset
1247 if (j > 0) {
52fed2ec0afb 6667620: (Escape Analysis) fix deoptimization for scalar replaced objects
kvn
parents: 0
diff changeset
1248 length = j;
52fed2ec0afb 6667620: (Escape Analysis) fix deoptimization for scalar replaced objects
kvn
parents: 0
diff changeset
1249 // _sort_Fn is defined in growableArray.hpp.
52fed2ec0afb 6667620: (Escape Analysis) fix deoptimization for scalar replaced objects
kvn
parents: 0
diff changeset
1250 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
1251 for (int i = 0; i < length; i += 2) {
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1252 fd.initialize(this, fields_sorted[i + 1]);
44
52fed2ec0afb 6667620: (Escape Analysis) fix deoptimization for scalar replaced objects
kvn
parents: 0
diff changeset
1253 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
1254 cl->do_field(&fd);
52fed2ec0afb 6667620: (Escape Analysis) fix deoptimization for scalar replaced objects
kvn
parents: 0
diff changeset
1255 }
52fed2ec0afb 6667620: (Escape Analysis) fix deoptimization for scalar replaced objects
kvn
parents: 0
diff changeset
1256 }
6197
d2a62e0f25eb 6995781: Native Memory Tracking (Phase 1)
zgu
parents: 6038
diff changeset
1257 FREE_C_HEAP_ARRAY(int, fields_sorted, mtClass);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1258 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1259
a61af66fc99e Initial load
duke
parents:
diff changeset
1260
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1261 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
1262 if (array_klasses() != NULL)
6831
d8ce2825b193 8000213: NPG: Should have renamed arrayKlass and typeArrayKlass
coleenp
parents: 6735
diff changeset
1263 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
1264 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1265
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1266 void InstanceKlass::array_klasses_do(void f(Klass* k)) {
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1267 if (array_klasses() != NULL)
6831
d8ce2825b193 8000213: NPG: Should have renamed arrayKlass and typeArrayKlass
coleenp
parents: 6735
diff changeset
1268 ArrayKlass::cast(array_klasses())->array_klasses_do(f);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1269 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1270
a61af66fc99e Initial load
duke
parents:
diff changeset
1271
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1272 void InstanceKlass::with_array_klasses_do(void f(Klass* k)) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1273 f(this);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1274 array_klasses_do(f);
a61af66fc99e Initial load
duke
parents:
diff changeset
1275 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1276
a61af66fc99e Initial load
duke
parents:
diff changeset
1277 #ifdef ASSERT
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1278 static int linear_search(Array<Method*>* methods, Symbol* name, Symbol* signature) {
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1279 int len = methods->length();
a61af66fc99e Initial load
duke
parents:
diff changeset
1280 for (int index = 0; index < len; index++) {
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1281 Method* m = methods->at(index);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1282 assert(m->is_method(), "must be method");
a61af66fc99e Initial load
duke
parents:
diff changeset
1283 if (m->signature() == signature && m->name() == name) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1284 return index;
a61af66fc99e Initial load
duke
parents:
diff changeset
1285 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1286 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1287 return -1;
a61af66fc99e Initial load
duke
parents:
diff changeset
1288 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1289 #endif
a61af66fc99e Initial load
duke
parents:
diff changeset
1290
6934
4735d2c84362 7200776: Implement default methods in interfaces
kamg
parents: 6831
diff changeset
1291 static int binary_search(Array<Method*>* methods, Symbol* name) {
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1292 int len = methods->length();
a61af66fc99e Initial load
duke
parents:
diff changeset
1293 // methods are sorted, so do binary search
a61af66fc99e Initial load
duke
parents:
diff changeset
1294 int l = 0;
a61af66fc99e Initial load
duke
parents:
diff changeset
1295 int h = len - 1;
a61af66fc99e Initial load
duke
parents:
diff changeset
1296 while (l <= h) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1297 int mid = (l + h) >> 1;
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1298 Method* m = methods->at(mid);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1299 assert(m->is_method(), "must be method");
a61af66fc99e Initial load
duke
parents:
diff changeset
1300 int res = m->name()->fast_compare(name);
a61af66fc99e Initial load
duke
parents:
diff changeset
1301 if (res == 0) {
6934
4735d2c84362 7200776: Implement default methods in interfaces
kamg
parents: 6831
diff changeset
1302 return mid;
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1303 } else if (res < 0) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1304 l = mid + 1;
a61af66fc99e Initial load
duke
parents:
diff changeset
1305 } else {
a61af66fc99e Initial load
duke
parents:
diff changeset
1306 h = mid - 1;
a61af66fc99e Initial load
duke
parents:
diff changeset
1307 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1308 }
6934
4735d2c84362 7200776: Implement default methods in interfaces
kamg
parents: 6831
diff changeset
1309 return -1;
4735d2c84362 7200776: Implement default methods in interfaces
kamg
parents: 6831
diff changeset
1310 }
4735d2c84362 7200776: Implement default methods in interfaces
kamg
parents: 6831
diff changeset
1311
4735d2c84362 7200776: Implement default methods in interfaces
kamg
parents: 6831
diff changeset
1312 Method* InstanceKlass::find_method(Symbol* name, Symbol* signature) const {
4735d2c84362 7200776: Implement default methods in interfaces
kamg
parents: 6831
diff changeset
1313 return InstanceKlass::find_method(methods(), name, signature);
4735d2c84362 7200776: Implement default methods in interfaces
kamg
parents: 6831
diff changeset
1314 }
4735d2c84362 7200776: Implement default methods in interfaces
kamg
parents: 6831
diff changeset
1315
4735d2c84362 7200776: Implement default methods in interfaces
kamg
parents: 6831
diff changeset
1316 Method* InstanceKlass::find_method(
4735d2c84362 7200776: Implement default methods in interfaces
kamg
parents: 6831
diff changeset
1317 Array<Method*>* methods, Symbol* name, Symbol* signature) {
4735d2c84362 7200776: Implement default methods in interfaces
kamg
parents: 6831
diff changeset
1318 int hit = binary_search(methods, name);
4735d2c84362 7200776: Implement default methods in interfaces
kamg
parents: 6831
diff changeset
1319 if (hit != -1) {
4735d2c84362 7200776: Implement default methods in interfaces
kamg
parents: 6831
diff changeset
1320 Method* m = methods->at(hit);
4735d2c84362 7200776: Implement default methods in interfaces
kamg
parents: 6831
diff changeset
1321 // Do linear search to find matching signature. First, quick check
4735d2c84362 7200776: Implement default methods in interfaces
kamg
parents: 6831
diff changeset
1322 // for common case
4735d2c84362 7200776: Implement default methods in interfaces
kamg
parents: 6831
diff changeset
1323 if (m->signature() == signature) return m;
4735d2c84362 7200776: Implement default methods in interfaces
kamg
parents: 6831
diff changeset
1324 // search downwards through overloaded methods
4735d2c84362 7200776: Implement default methods in interfaces
kamg
parents: 6831
diff changeset
1325 int i;
4735d2c84362 7200776: Implement default methods in interfaces
kamg
parents: 6831
diff changeset
1326 for (i = hit - 1; i >= 0; --i) {
4735d2c84362 7200776: Implement default methods in interfaces
kamg
parents: 6831
diff changeset
1327 Method* m = methods->at(i);
4735d2c84362 7200776: Implement default methods in interfaces
kamg
parents: 6831
diff changeset
1328 assert(m->is_method(), "must be method");
4735d2c84362 7200776: Implement default methods in interfaces
kamg
parents: 6831
diff changeset
1329 if (m->name() != name) break;
4735d2c84362 7200776: Implement default methods in interfaces
kamg
parents: 6831
diff changeset
1330 if (m->signature() == signature) return m;
4735d2c84362 7200776: Implement default methods in interfaces
kamg
parents: 6831
diff changeset
1331 }
4735d2c84362 7200776: Implement default methods in interfaces
kamg
parents: 6831
diff changeset
1332 // search upwards
4735d2c84362 7200776: Implement default methods in interfaces
kamg
parents: 6831
diff changeset
1333 for (i = hit + 1; i < methods->length(); ++i) {
4735d2c84362 7200776: Implement default methods in interfaces
kamg
parents: 6831
diff changeset
1334 Method* m = methods->at(i);
4735d2c84362 7200776: Implement default methods in interfaces
kamg
parents: 6831
diff changeset
1335 assert(m->is_method(), "must be method");
4735d2c84362 7200776: Implement default methods in interfaces
kamg
parents: 6831
diff changeset
1336 if (m->name() != name) break;
4735d2c84362 7200776: Implement default methods in interfaces
kamg
parents: 6831
diff changeset
1337 if (m->signature() == signature) return m;
4735d2c84362 7200776: Implement default methods in interfaces
kamg
parents: 6831
diff changeset
1338 }
4735d2c84362 7200776: Implement default methods in interfaces
kamg
parents: 6831
diff changeset
1339 // not found
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1340 #ifdef ASSERT
6934
4735d2c84362 7200776: Implement default methods in interfaces
kamg
parents: 6831
diff changeset
1341 int index = linear_search(methods, name, signature);
4735d2c84362 7200776: Implement default methods in interfaces
kamg
parents: 6831
diff changeset
1342 assert(index == -1, err_msg("binary search should have found entry %d", index));
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1343 #endif
6934
4735d2c84362 7200776: Implement default methods in interfaces
kamg
parents: 6831
diff changeset
1344 }
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1345 return NULL;
a61af66fc99e Initial load
duke
parents:
diff changeset
1346 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1347
6934
4735d2c84362 7200776: Implement default methods in interfaces
kamg
parents: 6831
diff changeset
1348 int InstanceKlass::find_method_by_name(Symbol* name, int* end) {
4735d2c84362 7200776: Implement default methods in interfaces
kamg
parents: 6831
diff changeset
1349 return find_method_by_name(methods(), name, end);
4735d2c84362 7200776: Implement default methods in interfaces
kamg
parents: 6831
diff changeset
1350 }
4735d2c84362 7200776: Implement default methods in interfaces
kamg
parents: 6831
diff changeset
1351
4735d2c84362 7200776: Implement default methods in interfaces
kamg
parents: 6831
diff changeset
1352 int InstanceKlass::find_method_by_name(
4735d2c84362 7200776: Implement default methods in interfaces
kamg
parents: 6831
diff changeset
1353 Array<Method*>* methods, Symbol* name, int* end_ptr) {
4735d2c84362 7200776: Implement default methods in interfaces
kamg
parents: 6831
diff changeset
1354 assert(end_ptr != NULL, "just checking");
4735d2c84362 7200776: Implement default methods in interfaces
kamg
parents: 6831
diff changeset
1355 int start = binary_search(methods, name);
4735d2c84362 7200776: Implement default methods in interfaces
kamg
parents: 6831
diff changeset
1356 int end = start + 1;
4735d2c84362 7200776: Implement default methods in interfaces
kamg
parents: 6831
diff changeset
1357 if (start != -1) {
4735d2c84362 7200776: Implement default methods in interfaces
kamg
parents: 6831
diff changeset
1358 while (start - 1 >= 0 && (methods->at(start - 1))->name() == name) --start;
4735d2c84362 7200776: Implement default methods in interfaces
kamg
parents: 6831
diff changeset
1359 while (end < methods->length() && (methods->at(end))->name() == name) ++end;
4735d2c84362 7200776: Implement default methods in interfaces
kamg
parents: 6831
diff changeset
1360 *end_ptr = end;
4735d2c84362 7200776: Implement default methods in interfaces
kamg
parents: 6831
diff changeset
1361 return start;
4735d2c84362 7200776: Implement default methods in interfaces
kamg
parents: 6831
diff changeset
1362 }
4735d2c84362 7200776: Implement default methods in interfaces
kamg
parents: 6831
diff changeset
1363 return -1;
4735d2c84362 7200776: Implement default methods in interfaces
kamg
parents: 6831
diff changeset
1364 }
4735d2c84362 7200776: Implement default methods in interfaces
kamg
parents: 6831
diff changeset
1365
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1366 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
1367 Klass* klass = const_cast<InstanceKlass*>(this);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1368 while (klass != NULL) {
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1369 Method* method = InstanceKlass::cast(klass)->find_method(name, signature);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1370 if (method != NULL) return method;
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1371 klass = InstanceKlass::cast(klass)->super();
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1372 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1373 return NULL;
a61af66fc99e Initial load
duke
parents:
diff changeset
1374 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1375
a61af66fc99e Initial load
duke
parents:
diff changeset
1376 // lookup a method in all the interfaces that this class implements
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1377 Method* InstanceKlass::lookup_method_in_all_interfaces(Symbol* name,
2177
3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 1972
diff changeset
1378 Symbol* signature) const {
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1379 Array<Klass*>* all_ifs = transitive_interfaces();
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1380 int num_ifs = all_ifs->length();
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1381 InstanceKlass *ik = NULL;
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1382 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
1383 ik = InstanceKlass::cast(all_ifs->at(i));
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1384 Method* m = ik->lookup_method(name, signature);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1385 if (m != NULL) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1386 return m;
a61af66fc99e Initial load
duke
parents:
diff changeset
1387 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1388 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1389 return NULL;
a61af66fc99e Initial load
duke
parents:
diff changeset
1390 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1391
a61af66fc99e Initial load
duke
parents:
diff changeset
1392 /* jni_id_for_impl for jfieldIds only */
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1393 JNIid* InstanceKlass::jni_id_for_impl(instanceKlassHandle this_oop, int offset) {
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1394 MutexLocker ml(JfieldIdCreation_lock);
a61af66fc99e Initial load
duke
parents:
diff changeset
1395 // Retry lookup after we got the lock
a61af66fc99e Initial load
duke
parents:
diff changeset
1396 JNIid* probe = this_oop->jni_ids() == NULL ? NULL : this_oop->jni_ids()->find(offset);
a61af66fc99e Initial load
duke
parents:
diff changeset
1397 if (probe == NULL) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1398 // Slow case, allocate new static field identifier
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1399 probe = new JNIid(this_oop(), offset, this_oop->jni_ids());
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1400 this_oop->set_jni_ids(probe);
a61af66fc99e Initial load
duke
parents:
diff changeset
1401 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1402 return probe;
a61af66fc99e Initial load
duke
parents:
diff changeset
1403 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1404
a61af66fc99e Initial load
duke
parents:
diff changeset
1405
a61af66fc99e Initial load
duke
parents:
diff changeset
1406 /* jni_id_for for jfieldIds only */
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1407 JNIid* InstanceKlass::jni_id_for(int offset) {
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1408 JNIid* probe = jni_ids() == NULL ? NULL : jni_ids()->find(offset);
a61af66fc99e Initial load
duke
parents:
diff changeset
1409 if (probe == NULL) {
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1410 probe = jni_id_for_impl(this, offset);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1411 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1412 return probe;
a61af66fc99e Initial load
duke
parents:
diff changeset
1413 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1414
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1415 u2 InstanceKlass::enclosing_method_data(int offset) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1416 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
1417 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
1418 return 0;
f7c4174b33ba 7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents: 4739
diff changeset
1419 }
f7c4174b33ba 7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents: 4739
diff changeset
1420 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
1421 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
1422 return 0;
f7c4174b33ba 7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents: 4739
diff changeset
1423 } else {
f7c4174b33ba 7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents: 4739
diff changeset
1424 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
1425 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
1426 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
1427 }
f7c4174b33ba 7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents: 4739
diff changeset
1428 }
f7c4174b33ba 7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents: 4739
diff changeset
1429
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1430 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
1431 u2 method_index) {
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1432 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
1433 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
1434 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
1435 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
1436 int index = length - enclosing_method_attribute_size;
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1437 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
1438 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
1439 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
1440 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
1441 }
f7c4174b33ba 7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents: 4739
diff changeset
1442 }
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1443
a61af66fc99e Initial load
duke
parents:
diff changeset
1444 // Lookup or create a jmethodID.
977
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1445 // 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
1446 // 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
1447 // and/or other cache consistency problems.
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1448 //
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1449 jmethodID InstanceKlass::get_jmethod_id(instanceKlassHandle ik_h, methodHandle method_h) {
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1450 size_t idnum = (size_t)method_h->method_idnum();
a61af66fc99e Initial load
duke
parents:
diff changeset
1451 jmethodID* jmeths = ik_h->methods_jmethod_ids_acquire();
a61af66fc99e Initial load
duke
parents:
diff changeset
1452 size_t length = 0;
a61af66fc99e Initial load
duke
parents:
diff changeset
1453 jmethodID id = NULL;
977
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1454
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1455 // 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
1456 // 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
1457 // 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
1458 // 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
1459 // 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
1460 // 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
1461 // 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
1462 // 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
1463 // 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
1464 // 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
1465 // generally acquired in those two cases.
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1466 //
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1467 // 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
1468 // 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
1469 // 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
1470 // 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
1471 // acquired when the RedefineClasses() API has been used.
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1472
977
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1473 if (jmeths != NULL) {
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1474 // the cache already exists
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1475 if (!ik_h->idnum_can_increment()) {
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1476 // 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
1477 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
1478 } else {
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1479 // 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
1480 if (Threads::number_of_threads() == 0 ||
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1481 SafepointSynchronize::is_at_safepoint()) {
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1482 // 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
1483 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
1484 } else {
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1485 MutexLocker ml(JmethodIdCreation_lock);
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1486 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
1487 }
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1488 }
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1489 }
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1490 // implied else:
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1491 // we need to allocate a cache so default length and id values are good
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1492
977
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1493 if (jmeths == NULL || // no cache yet
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1494 length <= idnum || // cache is too short
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1495 id == NULL) { // cache doesn't contain entry
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1496
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1497 // 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
1498 // 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
1499 // 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
1500 // 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
1501 // to free after the lock is dropped.
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1502 jmethodID to_dealloc_id = NULL;
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1503 jmethodID* to_dealloc_jmeths = NULL;
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1504
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1505 // may not allocate new_jmeths or use it if we allocate it
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1506 jmethodID* new_jmeths = NULL;
a61af66fc99e Initial load
duke
parents:
diff changeset
1507 if (length <= idnum) {
977
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1508 // allocate a new cache that might be used
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1509 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
1510 new_jmeths = NEW_C_HEAP_ARRAY(jmethodID, size+1, mtClass);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1511 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
1512 // 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
1513 new_jmeths[0] = (jmethodID)size;
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1514 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1515
977
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1516 // allocate a new jmethodID that might be used
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1517 jmethodID new_id = NULL;
a61af66fc99e Initial load
duke
parents:
diff changeset
1518 if (method_h->is_old() && !method_h->is_obsolete()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1519 // 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
1520 Method* current_method = ik_h->method_with_idnum((int)idnum);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1521 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
1522 new_id = Method::make_jmethod_id(ik_h->class_loader_data(), current_method);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1523 } else {
a61af66fc99e Initial load
duke
parents:
diff changeset
1524 // It is the current version of the method or an obsolete method,
a61af66fc99e Initial load
duke
parents:
diff changeset
1525 // use the version passed in
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1526 new_id = Method::make_jmethod_id(ik_h->class_loader_data(), method_h());
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1527 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1528
977
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1529 if (Threads::number_of_threads() == 0 ||
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1530 SafepointSynchronize::is_at_safepoint()) {
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1531 // 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
1532 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
1533 &to_dealloc_id, &to_dealloc_jmeths);
49
31000d79ec71 6453355: 4/4 new No_Safepoint_Verifier uses fail during GC
dcubed
parents: 47
diff changeset
1534 } else {
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1535 MutexLocker ml(JmethodIdCreation_lock);
977
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1536 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
1537 &to_dealloc_id, &to_dealloc_jmeths);
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1538 }
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1539
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1540 // 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
1541 // 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
1542 if (to_dealloc_jmeths != NULL) {
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1543 FreeHeap(to_dealloc_jmeths);
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1544 }
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1545 // 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
1546 if (to_dealloc_id != NULL) {
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1547 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
1548 }
31000d79ec71 6453355: 4/4 new No_Safepoint_Verifier uses fail during GC
dcubed
parents: 47
diff changeset
1549 }
31000d79ec71 6453355: 4/4 new No_Safepoint_Verifier uses fail during GC
dcubed
parents: 47
diff changeset
1550 return id;
31000d79ec71 6453355: 4/4 new No_Safepoint_Verifier uses fail during GC
dcubed
parents: 47
diff changeset
1551 }
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1552
49
31000d79ec71 6453355: 4/4 new No_Safepoint_Verifier uses fail during GC
dcubed
parents: 47
diff changeset
1553
977
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1554 // 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
1555 // 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
1556 // 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
1557 // the VMThread or have cache consistency issues.
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1558 //
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1559 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
1560 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
1561 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
1562 jmethodID** to_dealloc_jmeths_p) {
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1563 assert(new_id != NULL, "sanity check");
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1564 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
1565 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
1566 assert(Threads::number_of_threads() == 0 ||
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1567 SafepointSynchronize::is_at_safepoint() ||
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1568 JmethodIdCreation_lock->owned_by_self(), "sanity check");
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1569
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1570 // 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
1571 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
1572 jmethodID id = NULL;
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1573 size_t length = 0;
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1574
977
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1575 if (jmeths == NULL || // no cache yet
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1576 (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
1577 if (jmeths != NULL) {
977
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1578 // 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
1579 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
1580 new_jmeths[index+1] = jmeths[index+1];
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1581 }
977
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1582 *to_dealloc_jmeths_p = jmeths; // save old cache for later delete
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1583 }
49
31000d79ec71 6453355: 4/4 new No_Safepoint_Verifier uses fail during GC
dcubed
parents: 47
diff changeset
1584 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
1585 } else {
977
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1586 // 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
1587 id = jmeths[idnum+1];
977
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1588 *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
1589 }
31000d79ec71 6453355: 4/4 new No_Safepoint_Verifier uses fail during GC
dcubed
parents: 47
diff changeset
1590 if (id == NULL) {
977
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1591 // 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
1592 // 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
1593 // 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
1594 // 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
1595 id = new_id;
977
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1596
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1597 // 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
1598 // 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
1599 // in the cache.
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1600 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
1601 } else {
977
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1602 *to_dealloc_id_p = new_id; // save new id for later delete
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1603 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1604 return id;
a61af66fc99e Initial load
duke
parents:
diff changeset
1605 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1606
a61af66fc99e Initial load
duke
parents:
diff changeset
1607
977
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1608 // 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
1609 // 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
1610 //
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1611 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
1612 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
1613 assert(cache != NULL, "sanity check");
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1614 assert(length_p != NULL, "sanity check");
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1615 assert(id_p != NULL, "sanity check");
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1616
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1617 // 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
1618 *length_p = (size_t)cache[0];
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1619 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
1620 *id_p = NULL;
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1621 } else {
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1622 *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
1623 }
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1624 }
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1625
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1626
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1627 // 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
1628 jmethodID InstanceKlass::jmethod_id_or_null(Method* method) {
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1629 size_t idnum = (size_t)method->method_idnum();
a61af66fc99e Initial load
duke
parents:
diff changeset
1630 jmethodID* jmeths = methods_jmethod_ids_acquire();
a61af66fc99e Initial load
duke
parents:
diff changeset
1631 size_t length; // length assigned as debugging crumb
a61af66fc99e Initial load
duke
parents:
diff changeset
1632 jmethodID id = NULL;
977
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1633 if (jmeths != NULL && // If there is a cache
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1634 (length = (size_t)jmeths[0]) > idnum) { // and if it is long enough,
a61af66fc99e Initial load
duke
parents:
diff changeset
1635 id = jmeths[idnum+1]; // Look up the id (may be NULL)
a61af66fc99e Initial load
duke
parents:
diff changeset
1636 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1637 return id;
a61af66fc99e Initial load
duke
parents:
diff changeset
1638 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1639
a61af66fc99e Initial load
duke
parents:
diff changeset
1640
a61af66fc99e Initial load
duke
parents:
diff changeset
1641 // Cache an itable index
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1642 void InstanceKlass::set_cached_itable_index(size_t idnum, int index) {
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1643 int* indices = methods_cached_itable_indices_acquire();
977
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1644 int* to_dealloc_indices = NULL;
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1645
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1646 // 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
1647 // 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
1648 // 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
1649 // release_set_methods_cached_itable_indices() to advertise the
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1650 // new cache. A partially constructed cache should never be seen
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1651 // by a racing thread. Cache reads and writes proceed without a
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1652 // lock, but creation of the cache itself requires no leaks so a
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1653 // lock is generally acquired in that case.
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1654 //
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1655 // 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
1656 // 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
1657 // 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
1658 // 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
1659 // acquired when the RedefineClasses() API has been used.
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 if (indices == NULL || idnum_can_increment()) {
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1662 // we need a cache or the cache can grow
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1663 MutexLocker ml(JNICachedItableIndex_lock);
977
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1664 // reacquire the cache to see if another thread already did the work
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1665 indices = methods_cached_itable_indices_acquire();
a61af66fc99e Initial load
duke
parents:
diff changeset
1666 size_t length = 0;
977
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1667 // cache size is stored in element[0], other elements offset by one
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1668 if (indices == NULL || (length = (size_t)indices[0]) <= idnum) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1669 size_t size = MAX2(idnum+1, (size_t)idnum_allocated_count());
6197
d2a62e0f25eb 6995781: Native Memory Tracking (Phase 1)
zgu
parents: 6038
diff changeset
1670 int* new_indices = NEW_C_HEAP_ARRAY(int, size+1, mtClass);
977
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1671 new_indices[0] = (int)size;
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1672 // copy any existing entries
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1673 size_t i;
a61af66fc99e Initial load
duke
parents:
diff changeset
1674 for (i = 0; i < length; i++) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1675 new_indices[i+1] = indices[i+1];
a61af66fc99e Initial load
duke
parents:
diff changeset
1676 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1677 // Set all the rest to -1
a61af66fc99e Initial load
duke
parents:
diff changeset
1678 for (i = length; i < size; i++) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1679 new_indices[i+1] = -1;
a61af66fc99e Initial load
duke
parents:
diff changeset
1680 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1681 if (indices != NULL) {
977
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1682 // We have an old cache to delete so save it for after we
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1683 // drop the lock.
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1684 to_dealloc_indices = indices;
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1685 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1686 release_set_methods_cached_itable_indices(indices = new_indices);
a61af66fc99e Initial load
duke
parents:
diff changeset
1687 }
977
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1688
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1689 if (idnum_can_increment()) {
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1690 // this cache can grow so we have to write to it safely
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1691 indices[idnum+1] = index;
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1692 }
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1693 } else {
a61af66fc99e Initial load
duke
parents:
diff changeset
1694 CHECK_UNHANDLED_OOPS_ONLY(Thread::current()->clear_unhandled_oops());
a61af66fc99e Initial load
duke
parents:
diff changeset
1695 }
977
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1696
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1697 if (!idnum_can_increment()) {
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1698 // The cache cannot grow and this JNI itable index value does not
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1699 // have to be unique like a jmethodID. If there is a race to set it,
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1700 // it doesn't matter.
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1701 indices[idnum+1] = index;
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 if (to_dealloc_indices != NULL) {
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1705 // we allocated a new cache so free the old one
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1706 FreeHeap(to_dealloc_indices);
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 974
diff changeset
1707 }
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1708 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1709
a61af66fc99e Initial load
duke
parents:
diff changeset
1710
a61af66fc99e Initial load
duke
parents:
diff changeset
1711 // Retrieve a cached itable index
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1712 int InstanceKlass::cached_itable_index(size_t idnum) {
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1713 int* indices = methods_cached_itable_indices_acquire();
a61af66fc99e Initial load
duke
parents:
diff changeset
1714 if (indices != NULL && ((size_t)indices[0]) > idnum) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1715 // indices exist and are long enough, retrieve possible cached
a61af66fc99e Initial load
duke
parents:
diff changeset
1716 return indices[idnum+1];
a61af66fc99e Initial load
duke
parents:
diff changeset
1717 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1718 return -1;
a61af66fc99e Initial load
duke
parents:
diff changeset
1719 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1720
a61af66fc99e Initial load
duke
parents:
diff changeset
1721
a61af66fc99e Initial load
duke
parents:
diff changeset
1722 //
a61af66fc99e Initial load
duke
parents:
diff changeset
1723 // 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
1724 // are dependent on the changes that were passed in and mark them for
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1725 // deoptimization. Returns the number of nmethods found.
a61af66fc99e Initial load
duke
parents:
diff changeset
1726 //
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1727 int InstanceKlass::mark_dependent_nmethods(DepChange& changes) {
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1728 assert_locked_or_safepoint(CodeCache_lock);
a61af66fc99e Initial load
duke
parents:
diff changeset
1729 int found = 0;
a61af66fc99e Initial load
duke
parents:
diff changeset
1730 nmethodBucket* b = _dependencies;
a61af66fc99e Initial load
duke
parents:
diff changeset
1731 while (b != NULL) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1732 nmethod* nm = b->get_nmethod();
a61af66fc99e Initial load
duke
parents:
diff changeset
1733 // since dependencies aren't removed until an nmethod becomes a zombie,
a61af66fc99e Initial load
duke
parents:
diff changeset
1734 // the dependency list may contain nmethods which aren't alive.
a61af66fc99e Initial load
duke
parents:
diff changeset
1735 if (nm->is_alive() && !nm->is_marked_for_deoptimization() && nm->check_dependency_on(changes)) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1736 if (TraceDependencies) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1737 ResourceMark rm;
a61af66fc99e Initial load
duke
parents:
diff changeset
1738 tty->print_cr("Marked for deoptimization");
a61af66fc99e Initial load
duke
parents:
diff changeset
1739 tty->print_cr(" context = %s", this->external_name());
a61af66fc99e Initial load
duke
parents:
diff changeset
1740 changes.print();
a61af66fc99e Initial load
duke
parents:
diff changeset
1741 nm->print();
a61af66fc99e Initial load
duke
parents:
diff changeset
1742 nm->print_dependencies();
a61af66fc99e Initial load
duke
parents:
diff changeset
1743 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1744 nm->mark_for_deoptimization();
a61af66fc99e Initial load
duke
parents:
diff changeset
1745 found++;
a61af66fc99e Initial load
duke
parents:
diff changeset
1746 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1747 b = b->next();
a61af66fc99e Initial load
duke
parents:
diff changeset
1748 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1749 return found;
a61af66fc99e Initial load
duke
parents:
diff changeset
1750 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1751
a61af66fc99e Initial load
duke
parents:
diff changeset
1752
a61af66fc99e Initial load
duke
parents:
diff changeset
1753 //
a61af66fc99e Initial load
duke
parents:
diff changeset
1754 // Add an nmethodBucket to the list of dependencies for this nmethod.
a61af66fc99e Initial load
duke
parents:
diff changeset
1755 // It's possible that an nmethod has multiple dependencies on this klass
a61af66fc99e Initial load
duke
parents:
diff changeset
1756 // so a count is kept for each bucket to guarantee that creation and
a61af66fc99e Initial load
duke
parents:
diff changeset
1757 // deletion of dependencies is consistent.
a61af66fc99e Initial load
duke
parents:
diff changeset
1758 //
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1759 void InstanceKlass::add_dependent_nmethod(nmethod* nm) {
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1760 assert_locked_or_safepoint(CodeCache_lock);
a61af66fc99e Initial load
duke
parents:
diff changeset
1761 nmethodBucket* b = _dependencies;
a61af66fc99e Initial load
duke
parents:
diff changeset
1762 nmethodBucket* last = NULL;
a61af66fc99e Initial load
duke
parents:
diff changeset
1763 while (b != NULL) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1764 if (nm == b->get_nmethod()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1765 b->increment();
a61af66fc99e Initial load
duke
parents:
diff changeset
1766 return;
a61af66fc99e Initial load
duke
parents:
diff changeset
1767 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1768 b = b->next();
a61af66fc99e Initial load
duke
parents:
diff changeset
1769 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1770 _dependencies = new nmethodBucket(nm, _dependencies);
a61af66fc99e Initial load
duke
parents:
diff changeset
1771 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1772
a61af66fc99e Initial load
duke
parents:
diff changeset
1773
a61af66fc99e Initial load
duke
parents:
diff changeset
1774 //
a61af66fc99e Initial load
duke
parents:
diff changeset
1775 // Decrement count of the nmethod in the dependency list and remove
a61af66fc99e Initial load
duke
parents:
diff changeset
1776 // the bucket competely when the count goes to 0. This method must
a61af66fc99e Initial load
duke
parents:
diff changeset
1777 // find a corresponding bucket otherwise there's a bug in the
a61af66fc99e Initial load
duke
parents:
diff changeset
1778 // recording of dependecies.
a61af66fc99e Initial load
duke
parents:
diff changeset
1779 //
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1780 void InstanceKlass::remove_dependent_nmethod(nmethod* nm) {
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1781 assert_locked_or_safepoint(CodeCache_lock);
a61af66fc99e Initial load
duke
parents:
diff changeset
1782 nmethodBucket* b = _dependencies;
a61af66fc99e Initial load
duke
parents:
diff changeset
1783 nmethodBucket* last = NULL;
a61af66fc99e Initial load
duke
parents:
diff changeset
1784 while (b != NULL) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1785 if (nm == b->get_nmethod()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1786 if (b->decrement() == 0) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1787 if (last == NULL) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1788 _dependencies = b->next();
a61af66fc99e Initial load
duke
parents:
diff changeset
1789 } else {
a61af66fc99e Initial load
duke
parents:
diff changeset
1790 last->set_next(b->next());
a61af66fc99e Initial load
duke
parents:
diff changeset
1791 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1792 delete b;
a61af66fc99e Initial load
duke
parents:
diff changeset
1793 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1794 return;
a61af66fc99e Initial load
duke
parents:
diff changeset
1795 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1796 last = b;
a61af66fc99e Initial load
duke
parents:
diff changeset
1797 b = b->next();
a61af66fc99e Initial load
duke
parents:
diff changeset
1798 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1799 #ifdef ASSERT
a61af66fc99e Initial load
duke
parents:
diff changeset
1800 tty->print_cr("### %s can't find dependent nmethod:", this->external_name());
a61af66fc99e Initial load
duke
parents:
diff changeset
1801 nm->print();
a61af66fc99e Initial load
duke
parents:
diff changeset
1802 #endif // ASSERT
a61af66fc99e Initial load
duke
parents:
diff changeset
1803 ShouldNotReachHere();
a61af66fc99e Initial load
duke
parents:
diff changeset
1804 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1805
a61af66fc99e Initial load
duke
parents:
diff changeset
1806
a61af66fc99e Initial load
duke
parents:
diff changeset
1807 #ifndef PRODUCT
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1808 void InstanceKlass::print_dependent_nmethods(bool verbose) {
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1809 nmethodBucket* b = _dependencies;
a61af66fc99e Initial load
duke
parents:
diff changeset
1810 int idx = 0;
a61af66fc99e Initial load
duke
parents:
diff changeset
1811 while (b != NULL) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1812 nmethod* nm = b->get_nmethod();
a61af66fc99e Initial load
duke
parents:
diff changeset
1813 tty->print("[%d] count=%d { ", idx++, b->count());
a61af66fc99e Initial load
duke
parents:
diff changeset
1814 if (!verbose) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1815 nm->print_on(tty, "nmethod");
a61af66fc99e Initial load
duke
parents:
diff changeset
1816 tty->print_cr(" } ");
a61af66fc99e Initial load
duke
parents:
diff changeset
1817 } else {
a61af66fc99e Initial load
duke
parents:
diff changeset
1818 nm->print();
a61af66fc99e Initial load
duke
parents:
diff changeset
1819 nm->print_dependencies();
a61af66fc99e Initial load
duke
parents:
diff changeset
1820 tty->print_cr("--- } ");
a61af66fc99e Initial load
duke
parents:
diff changeset
1821 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1822 b = b->next();
a61af66fc99e Initial load
duke
parents:
diff changeset
1823 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1824 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1825
a61af66fc99e Initial load
duke
parents:
diff changeset
1826
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1827 bool InstanceKlass::is_dependent_nmethod(nmethod* nm) {
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1828 nmethodBucket* b = _dependencies;
a61af66fc99e Initial load
duke
parents:
diff changeset
1829 while (b != NULL) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1830 if (nm == b->get_nmethod()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1831 return true;
a61af66fc99e Initial load
duke
parents:
diff changeset
1832 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1833 b = b->next();
a61af66fc99e Initial load
duke
parents:
diff changeset
1834 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1835 return false;
a61af66fc99e Initial load
duke
parents:
diff changeset
1836 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1837 #endif //PRODUCT
a61af66fc99e Initial load
duke
parents:
diff changeset
1838
a61af66fc99e Initial load
duke
parents:
diff changeset
1839
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1840 // Garbage collection
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1841
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1842 void InstanceKlass::oops_do(OopClosure* cl) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1843 Klass::oops_do(cl);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1844
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1845 cl->do_oop(adr_protection_domain());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1846 cl->do_oop(adr_signers());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1847 cl->do_oop(adr_init_lock());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1848
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1849 // Don't walk the arrays since they are walked from the ClassLoaderData objects.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1850 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1851
113
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
1852 #ifdef ASSERT
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
1853 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
1854 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
1855 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
1856 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
1857 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
1858 }
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
1859 }
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
1860 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
1861 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
1862 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
1863 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
1864 assert(Universe::heap()->is_in_closed_subset(o),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
1865 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
1866 }
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
1867 }
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
1868 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
1869 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
1870 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
1871 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
1872 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
1873 }
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
1874 }
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
1875 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
1876
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
1877 #else
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
1878 template <class T> void assert_is_in(T *p) {}
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coleenp
parents: 52
diff changeset
1879 template <class T> void assert_is_in_closed_subset(T *p) {}
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coleenp
parents: 52
diff changeset
1880 template <class T> void assert_is_in_reserved(T *p) {}
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coleenp
parents: 52
diff changeset
1881 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
1882 #endif // ASSERT
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coleenp
parents: 52
diff changeset
1883
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coleenp
parents: 52
diff changeset
1884 //
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
1885 // 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
1886 // 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
1887 //
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coleenp
parents: 52
diff changeset
1888 // Parameters are:
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
1889 // 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
1890 // 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
1891 // 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
1892 // 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
1893 // 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
1894 // it a template function)
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
1895 // 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
1896 // doesn't matter when enabled.
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
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diff changeset
1897 #define InstanceKlass_SPECIALIZED_OOP_ITERATE( \
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coleenp
parents: 52
diff changeset
1898 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
1899 assert_fn) \
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coleenp
parents: 52
diff changeset
1900 { \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
1901 T* p = (T*)(start_p); \
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coleenp
parents: 52
diff changeset
1902 T* const end = p + (count); \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
1903 while (p < end) { \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
1904 (assert_fn)(p); \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
1905 do_oop; \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
1906 ++p; \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
1907 } \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
1908 }
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
1909
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coleenp
parents: 52
diff changeset
1910 #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
1911 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
1912 assert_fn) \
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coleenp
parents: 52
diff changeset
1913 { \
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coleenp
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diff changeset
1914 T* const start = (T*)(start_p); \
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coleenp
parents: 52
diff changeset
1915 T* p = start + (count); \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
1916 while (start < p) { \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
1917 --p; \
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coleenp
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diff changeset
1918 (assert_fn)(p); \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
1919 do_oop; \
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coleenp
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diff changeset
1920 } \
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coleenp
parents: 52
diff changeset
1921 }
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coleenp
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diff changeset
1922
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coleenp
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diff changeset
1923 #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
1924 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
1925 do_oop, assert_fn) \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
1926 { \
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coleenp
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diff changeset
1927 T* const l = (T*)(low); \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
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diff changeset
1928 T* const h = (T*)(high); \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
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diff changeset
1929 assert(mask_bits((intptr_t)l, sizeof(T)-1) == 0 && \
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coleenp
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diff changeset
1930 mask_bits((intptr_t)h, sizeof(T)-1) == 0, \
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coleenp
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diff changeset
1931 "bounded region must be properly aligned"); \
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diff changeset
1932 T* p = (T*)(start_p); \
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diff changeset
1933 T* end = p + (count); \
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diff changeset
1934 if (p < l) p = l; \
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coleenp
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diff changeset
1935 if (end > h) end = h; \
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diff changeset
1936 while (p < end) { \
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coleenp
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diff changeset
1937 (assert_fn)(p); \
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coleenp
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diff changeset
1938 do_oop; \
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coleenp
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diff changeset
1939 ++p; \
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coleenp
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diff changeset
1940 } \
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coleenp
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diff changeset
1941 }
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coleenp
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diff changeset
1942
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coleenp
parents: 52
diff changeset
1943
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coleenp
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diff changeset
1944 // The following macros call specialized macros, passing either oop or
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coleenp
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diff changeset
1945 // narrowOop as the specialization type. These test the UseCompressedOops
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coleenp
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diff changeset
1946 // flag.
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diff changeset
1947 #define InstanceKlass_OOP_MAP_ITERATE(obj, do_oop, assert_fn) \
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diff changeset
1948 { \
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diff changeset
1949 /* Compute oopmap block range. The common case \
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coleenp
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diff changeset
1950 is nonstatic_oop_map_size == 1. */ \
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diff changeset
1951 OopMapBlock* map = start_of_nonstatic_oop_maps(); \
938
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1952 OopMapBlock* const end_map = map + nonstatic_oop_map_count(); \
113
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diff changeset
1953 if (UseCompressedOops) { \
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diff changeset
1954 while (map < end_map) { \
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diff changeset
1955 InstanceKlass_SPECIALIZED_OOP_ITERATE(narrowOop, \
938
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1956 obj->obj_field_addr<narrowOop>(map->offset()), map->count(), \
113
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diff changeset
1957 do_oop, assert_fn) \
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coleenp
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diff changeset
1958 ++map; \
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diff changeset
1959 } \
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diff changeset
1960 } else { \
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1961 while (map < end_map) { \
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diff changeset
1962 InstanceKlass_SPECIALIZED_OOP_ITERATE(oop, \
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1963 obj->obj_field_addr<oop>(map->offset()), map->count(), \
113
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diff changeset
1964 do_oop, assert_fn) \
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diff changeset
1965 ++map; \
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diff changeset
1966 } \
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diff changeset
1967 } \
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diff changeset
1968 }
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diff changeset
1969
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1970 #define InstanceKlass_OOP_MAP_REVERSE_ITERATE(obj, do_oop, assert_fn) \
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diff changeset
1971 { \
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1972 OopMapBlock* const start_map = start_of_nonstatic_oop_maps(); \
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1973 OopMapBlock* map = start_map + nonstatic_oop_map_count(); \
113
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diff changeset
1974 if (UseCompressedOops) { \
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diff changeset
1975 while (start_map < map) { \
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diff changeset
1976 --map; \
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1977 InstanceKlass_SPECIALIZED_OOP_REVERSE_ITERATE(narrowOop, \
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1978 obj->obj_field_addr<narrowOop>(map->offset()), map->count(), \
113
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1979 do_oop, assert_fn) \
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coleenp
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diff changeset
1980 } \
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diff changeset
1981 } else { \
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diff changeset
1982 while (start_map < map) { \
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coleenp
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diff changeset
1983 --map; \
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coleenp
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diff changeset
1984 InstanceKlass_SPECIALIZED_OOP_REVERSE_ITERATE(oop, \
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diff changeset
1985 obj->obj_field_addr<oop>(map->offset()), map->count(), \
113
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coleenp
parents: 52
diff changeset
1986 do_oop, assert_fn) \
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coleenp
parents: 52
diff changeset
1987 } \
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diff changeset
1988 } \
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coleenp
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diff changeset
1989 }
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diff changeset
1990
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coleenp
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diff changeset
1991 #define InstanceKlass_BOUNDED_OOP_MAP_ITERATE(obj, low, high, do_oop, \
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coleenp
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diff changeset
1992 assert_fn) \
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coleenp
parents: 52
diff changeset
1993 { \
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coleenp
parents: 52
diff changeset
1994 /* Compute oopmap block range. The common case is \
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coleenp
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diff changeset
1995 nonstatic_oop_map_size == 1, so we accept the \
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coleenp
parents: 52
diff changeset
1996 usually non-existent extra overhead of examining \
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coleenp
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diff changeset
1997 all the maps. */ \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
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diff changeset
1998 OopMapBlock* map = start_of_nonstatic_oop_maps(); \
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diff changeset
1999 OopMapBlock* const end_map = map + nonstatic_oop_map_count(); \
113
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diff changeset
2000 if (UseCompressedOops) { \
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coleenp
parents: 52
diff changeset
2001 while (map < end_map) { \
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coleenp
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diff changeset
2002 InstanceKlass_SPECIALIZED_BOUNDED_OOP_ITERATE(narrowOop, \
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diff changeset
2003 obj->obj_field_addr<narrowOop>(map->offset()), map->count(), \
113
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parents: 52
diff changeset
2004 low, high, \
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coleenp
parents: 52
diff changeset
2005 do_oop, assert_fn) \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
2006 ++map; \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
2007 } \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
2008 } else { \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
2009 while (map < end_map) { \
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coleenp
parents: 52
diff changeset
2010 InstanceKlass_SPECIALIZED_BOUNDED_OOP_ITERATE(oop, \
938
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parents: 876
diff changeset
2011 obj->obj_field_addr<oop>(map->offset()), map->count(), \
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parents: 52
diff changeset
2012 low, high, \
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diff changeset
2013 do_oop, assert_fn) \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
2014 ++map; \
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 }
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
2018
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2019 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
2020 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
2021 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
2022 InstanceKlass_OOP_MAP_ITERATE( \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
2023 obj, \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
2024 MarkSweep::mark_and_push(p), \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
2025 assert_is_in_closed_subset)
0
a61af66fc99e Initial load
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parents:
diff changeset
2026 }
a61af66fc99e Initial load
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parents:
diff changeset
2027
a61af66fc99e Initial load
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parents:
diff changeset
2028 #ifndef SERIALGC
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2029 void InstanceKlass::oop_follow_contents(ParCompactionManager* cm,
0
a61af66fc99e Initial load
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diff changeset
2030 oop obj) {
113
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
2031 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
2032 PSParallelCompact::follow_klass(cm, obj->klass());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2033 // 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
2034 // everything else.
113
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
2035 InstanceKlass_OOP_MAP_ITERATE( \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
2036 obj, \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
2037 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
2038 assert_is_in)
0
a61af66fc99e Initial load
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parents:
diff changeset
2039 }
a61af66fc99e Initial load
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parents:
diff changeset
2040 #endif // SERIALGC
a61af66fc99e Initial load
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parents:
diff changeset
2041
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2042 // closure's do_metadata() method dictates whether the given closure should be
0
a61af66fc99e Initial load
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parents:
diff changeset
2043 // applied to the klass ptr in the object header.
a61af66fc99e Initial load
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parents:
diff changeset
2044
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2045 #define if_do_metadata_checked(closure, nv_suffix) \
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2046 /* 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
2047 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
2048 "Inconsistency in do_metadata"); \
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2049 if (closure->do_metadata##nv_suffix())
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2050
342
37f87013dfd8 6711316: Open source the Garbage-First garbage collector
ysr
parents: 113
diff changeset
2051 #define InstanceKlass_OOP_OOP_ITERATE_DEFN(OopClosureType, nv_suffix) \
37f87013dfd8 6711316: Open source the Garbage-First garbage collector
ysr
parents: 113
diff changeset
2052 \
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2053 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
2054 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
2055 /* header */ \
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2056 if_do_metadata_checked(closure, nv_suffix) { \
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2057 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
2058 } \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
2059 InstanceKlass_OOP_MAP_ITERATE( \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
2060 obj, \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
2061 SpecializationStats:: \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
2062 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
2063 (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
2064 assert_is_in_closed_subset) \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
2065 return size_helper(); \
0
a61af66fc99e Initial load
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parents:
diff changeset
2066 }
a61af66fc99e Initial load
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parents:
diff changeset
2067
342
37f87013dfd8 6711316: Open source the Garbage-First garbage collector
ysr
parents: 113
diff changeset
2068 #ifndef SERIALGC
37f87013dfd8 6711316: Open source the Garbage-First garbage collector
ysr
parents: 113
diff changeset
2069 #define InstanceKlass_OOP_OOP_ITERATE_BACKWARDS_DEFN(OopClosureType, nv_suffix) \
37f87013dfd8 6711316: Open source the Garbage-First garbage collector
ysr
parents: 113
diff changeset
2070 \
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2071 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
2072 OopClosureType* closure) { \
37f87013dfd8 6711316: Open source the Garbage-First garbage collector
ysr
parents: 113
diff changeset
2073 SpecializationStats::record_iterate_call##nv_suffix(SpecializationStats::ik); \
37f87013dfd8 6711316: Open source the Garbage-First garbage collector
ysr
parents: 113
diff changeset
2074 /* header */ \
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2075 if_do_metadata_checked(closure, nv_suffix) { \
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2076 closure->do_klass##nv_suffix(obj->klass()); \
342
37f87013dfd8 6711316: Open source the Garbage-First garbage collector
ysr
parents: 113
diff changeset
2077 } \
37f87013dfd8 6711316: Open source the Garbage-First garbage collector
ysr
parents: 113
diff changeset
2078 /* instance variables */ \
37f87013dfd8 6711316: Open source the Garbage-First garbage collector
ysr
parents: 113
diff changeset
2079 InstanceKlass_OOP_MAP_REVERSE_ITERATE( \
37f87013dfd8 6711316: Open source the Garbage-First garbage collector
ysr
parents: 113
diff changeset
2080 obj, \
37f87013dfd8 6711316: Open source the Garbage-First garbage collector
ysr
parents: 113
diff changeset
2081 SpecializationStats::record_do_oop_call##nv_suffix(SpecializationStats::ik);\
37f87013dfd8 6711316: Open source the Garbage-First garbage collector
ysr
parents: 113
diff changeset
2082 (closure)->do_oop##nv_suffix(p), \
37f87013dfd8 6711316: Open source the Garbage-First garbage collector
ysr
parents: 113
diff changeset
2083 assert_is_in_closed_subset) \
37f87013dfd8 6711316: Open source the Garbage-First garbage collector
ysr
parents: 113
diff changeset
2084 return size_helper(); \
37f87013dfd8 6711316: Open source the Garbage-First garbage collector
ysr
parents: 113
diff changeset
2085 }
37f87013dfd8 6711316: Open source the Garbage-First garbage collector
ysr
parents: 113
diff changeset
2086 #endif // !SERIALGC
37f87013dfd8 6711316: Open source the Garbage-First garbage collector
ysr
parents: 113
diff changeset
2087
113
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
2088 #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
2089 \
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2090 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
2091 OopClosureType* closure, \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
2092 MemRegion mr) { \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
2093 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
2094 if_do_metadata_checked(closure, nv_suffix) { \
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2095 if (mr.contains(obj)) { \
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2096 closure->do_klass##nv_suffix(obj->klass()); \
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2097 } \
113
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
2098 } \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
2099 InstanceKlass_BOUNDED_OOP_MAP_ITERATE( \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
2100 obj, mr.start(), mr.end(), \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
2101 (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
2102 assert_is_in_closed_subset) \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
2103 return size_helper(); \
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2104 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2105
a61af66fc99e Initial load
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parents:
diff changeset
2106 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
2107 ALL_OOP_OOP_ITERATE_CLOSURES_2(InstanceKlass_OOP_OOP_ITERATE_DEFN)
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2108 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
2109 ALL_OOP_OOP_ITERATE_CLOSURES_2(InstanceKlass_OOP_OOP_ITERATE_DEFN_m)
37f87013dfd8 6711316: Open source the Garbage-First garbage collector
ysr
parents: 113
diff changeset
2110 #ifndef SERIALGC
37f87013dfd8 6711316: Open source the Garbage-First garbage collector
ysr
parents: 113
diff changeset
2111 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
2112 ALL_OOP_OOP_ITERATE_CLOSURES_2(InstanceKlass_OOP_OOP_ITERATE_BACKWARDS_DEFN)
37f87013dfd8 6711316: Open source the Garbage-First garbage collector
ysr
parents: 113
diff changeset
2113 #endif // !SERIALGC
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 int InstanceKlass::oop_adjust_pointers(oop obj) {
0
a61af66fc99e Initial load
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parents:
diff changeset
2116 int size = size_helper();
113
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
2117 InstanceKlass_OOP_MAP_ITERATE( \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
2118 obj, \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
2119 MarkSweep::adjust_pointer(p), \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
2120 assert_is_in)
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2121 MarkSweep::adjust_klass(obj->klass());
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2122 return size;
a61af66fc99e Initial load
duke
parents:
diff changeset
2123 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2124
a61af66fc99e Initial load
duke
parents:
diff changeset
2125 #ifndef SERIALGC
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2126 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
2127 InstanceKlass_OOP_MAP_REVERSE_ITERATE( \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
2128 obj, \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
2129 if (PSScavenge::should_scavenge(p)) { \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
2130 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
2131 }, \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
2132 assert_nothing )
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2133 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2134
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2135 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
2136 int size = size_helper();
113
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
2137 InstanceKlass_OOP_MAP_ITERATE( \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
2138 obj, \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
2139 PSParallelCompact::adjust_pointer(p), \
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2140 assert_is_in)
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2141 obj->update_header(cm);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2142 return size;
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2143 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2144
a61af66fc99e Initial load
duke
parents:
diff changeset
2145 #endif // SERIALGC
a61af66fc99e Initial load
duke
parents:
diff changeset
2146
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2147 void InstanceKlass::clean_implementors_list(BoolObjectClosure* is_alive) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2148 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
2149 if (is_interface()) {
49036505ab5f 7154670: The instanceKlass _implementors[] and _nof_implementors are not needed for non-interface klass.
jiangli
parents: 5969
diff changeset
2150 if (ClassUnloading) {
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2151 Klass* impl = implementor();
5998
49036505ab5f 7154670: The instanceKlass _implementors[] and _nof_implementors are not needed for non-interface klass.
jiangli
parents: 5969
diff changeset
2152 if (impl != NULL) {
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2153 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
2154 // remove this guy
6038
8bafad97cd26 7158552: The instanceKlsss::_host_klass is only needed for anonymous class for JSR 292 support.
jiangli
parents: 5998
diff changeset
2155 *adr_implementor() = NULL;
5998
49036505ab5f 7154670: The instanceKlass _implementors[] and _nof_implementors are not needed for non-interface klass.
jiangli
parents: 5969
diff changeset
2156 }
0
a61af66fc99e Initial load
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parents:
diff changeset
2157 }
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2158 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2159 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2160 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2161
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2162 void InstanceKlass::clean_method_data(BoolObjectClosure* is_alive) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2163 #ifdef COMPILER2
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2164 // Currently only used by C2.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2165 for (int m = 0; m < methods()->length(); m++) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2166 MethodData* mdo = methods()->at(m)->method_data();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2167 if (mdo != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2168 for (ProfileData* data = mdo->first_data();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2169 mdo->is_valid(data);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2170 data = mdo->next_data(data)) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2171 data->clean_weak_klass_links(is_alive);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2172 }
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2173 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2174 }
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2175 #else
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2176 #ifdef ASSERT
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2177 // Verify that we haven't started to use MDOs for C1.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2178 for (int m = 0; m < methods()->length(); m++) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2179 MethodData* mdo = methods()->at(m)->method_data();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2180 assert(mdo == NULL, "Didn't expect C1 to use MDOs");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2181 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2182 #endif // ASSERT
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2183 #endif // !COMPILER2
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2184 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2185
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2186
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2187 static void remove_unshareable_in_class(Klass* k) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2188 // remove klass's unshareable info
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2189 k->remove_unshareable_info();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2190 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2191
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2192 void InstanceKlass::remove_unshareable_info() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2193 Klass::remove_unshareable_info();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2194 // Unlink the class
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2195 if (is_linked()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2196 unlink_class();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2197 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2198 init_implementor();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2199
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2200 constants()->remove_unshareable_info();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2201
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2202 for (int i = 0; i < methods()->length(); i++) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2203 Method* m = methods()->at(i);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2204 m->remove_unshareable_info();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2205 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2206
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2207 // Need to reinstate when reading back the class.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2208 set_init_lock(NULL);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2209
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2210 // do array classes also.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2211 array_klasses_do(remove_unshareable_in_class);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2212 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2213
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2214 void restore_unshareable_in_class(Klass* k, TRAPS) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2215 k->restore_unshareable_info(CHECK);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2216 }
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::restore_unshareable_info(TRAPS) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2219 Klass::restore_unshareable_info(CHECK);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2220 instanceKlassHandle ik(THREAD, this);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2221
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2222 Array<Method*>* methods = ik->methods();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2223 int num_methods = methods->length();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2224 for (int index2 = 0; index2 < num_methods; ++index2) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2225 methodHandle m(THREAD, methods->at(index2));
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2226 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
2227 // 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
2228 m->restore_vtable();
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2229 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2230 if (JvmtiExport::has_redefined_a_class()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2231 // Reinitialize vtable because RedefineClasses may have changed some
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2232 // 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
2233 // 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
2234 // 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
2235 // 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
2236 ResourceMark rm(THREAD);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2237 ik->vtable()->initialize_vtable(false, CHECK);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2238 ik->itable()->initialize_itable(false, CHECK);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2239 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2240
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2241 // Allocate a simple java object for a lock.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2242 // This needs to be a java object because during class initialization
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2243 // it can be held across a java call.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2244 typeArrayOop r = oopFactory::new_typeArray(T_INT, 0, CHECK);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2245 Handle h(THREAD, (oop)r);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2246 ik->set_init_lock(h());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2247
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2248 // restore constant pool resolved references
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2249 ik->constants()->restore_unshareable_info(CHECK);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2250
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2251 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
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 static void clear_all_breakpoints(Method* m) {
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2255 m->clear_all_breakpoints();
a61af66fc99e Initial load
duke
parents:
diff changeset
2256 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2257
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2258 void InstanceKlass::release_C_heap_structures() {
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2259 // Deallocate oop map cache
a61af66fc99e Initial load
duke
parents:
diff changeset
2260 if (_oop_map_cache != NULL) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2261 delete _oop_map_cache;
a61af66fc99e Initial load
duke
parents:
diff changeset
2262 _oop_map_cache = NULL;
a61af66fc99e Initial load
duke
parents:
diff changeset
2263 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2264
a61af66fc99e Initial load
duke
parents:
diff changeset
2265 // Deallocate JNI identifiers for jfieldIDs
a61af66fc99e Initial load
duke
parents:
diff changeset
2266 JNIid::deallocate(jni_ids());
a61af66fc99e Initial load
duke
parents:
diff changeset
2267 set_jni_ids(NULL);
a61af66fc99e Initial load
duke
parents:
diff changeset
2268
a61af66fc99e Initial load
duke
parents:
diff changeset
2269 jmethodID* jmeths = methods_jmethod_ids_acquire();
a61af66fc99e Initial load
duke
parents:
diff changeset
2270 if (jmeths != (jmethodID*)NULL) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2271 release_set_methods_jmethod_ids(NULL);
a61af66fc99e Initial load
duke
parents:
diff changeset
2272 FreeHeap(jmeths);
a61af66fc99e Initial load
duke
parents:
diff changeset
2273 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2274
a61af66fc99e Initial load
duke
parents:
diff changeset
2275 int* indices = methods_cached_itable_indices_acquire();
a61af66fc99e Initial load
duke
parents:
diff changeset
2276 if (indices != (int*)NULL) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2277 release_set_methods_cached_itable_indices(NULL);
a61af66fc99e Initial load
duke
parents:
diff changeset
2278 FreeHeap(indices);
a61af66fc99e Initial load
duke
parents:
diff changeset
2279 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2280
a61af66fc99e Initial load
duke
parents:
diff changeset
2281 // release dependencies
a61af66fc99e Initial load
duke
parents:
diff changeset
2282 nmethodBucket* b = _dependencies;
a61af66fc99e Initial load
duke
parents:
diff changeset
2283 _dependencies = NULL;
a61af66fc99e Initial load
duke
parents:
diff changeset
2284 while (b != NULL) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2285 nmethodBucket* next = b->next();
a61af66fc99e Initial load
duke
parents:
diff changeset
2286 delete b;
a61af66fc99e Initial load
duke
parents:
diff changeset
2287 b = next;
a61af66fc99e Initial load
duke
parents:
diff changeset
2288 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2289
a61af66fc99e Initial load
duke
parents:
diff changeset
2290 // Deallocate breakpoint records
a61af66fc99e Initial load
duke
parents:
diff changeset
2291 if (breakpoints() != 0x0) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2292 methods_do(clear_all_breakpoints);
a61af66fc99e Initial load
duke
parents:
diff changeset
2293 assert(breakpoints() == 0x0, "should have cleared breakpoints");
a61af66fc99e Initial load
duke
parents:
diff changeset
2294 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2295
a61af66fc99e Initial load
duke
parents:
diff changeset
2296 // deallocate information about previous versions
a61af66fc99e Initial load
duke
parents:
diff changeset
2297 if (_previous_versions != NULL) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2298 for (int i = _previous_versions->length() - 1; i >= 0; i--) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2299 PreviousVersionNode * pv_node = _previous_versions->at(i);
a61af66fc99e Initial load
duke
parents:
diff changeset
2300 delete pv_node;
a61af66fc99e Initial load
duke
parents:
diff changeset
2301 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2302 delete _previous_versions;
a61af66fc99e Initial load
duke
parents:
diff changeset
2303 _previous_versions = NULL;
a61af66fc99e Initial load
duke
parents:
diff changeset
2304 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2305
a61af66fc99e Initial load
duke
parents:
diff changeset
2306 // deallocate the cached class file
a61af66fc99e Initial load
duke
parents:
diff changeset
2307 if (_cached_class_file_bytes != NULL) {
6197
d2a62e0f25eb 6995781: Native Memory Tracking (Phase 1)
zgu
parents: 6038
diff changeset
2308 os::free(_cached_class_file_bytes, mtClass);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2309 _cached_class_file_bytes = NULL;
a61af66fc99e Initial load
duke
parents:
diff changeset
2310 _cached_class_file_len = 0;
a61af66fc99e Initial load
duke
parents:
diff changeset
2311 }
2177
3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 1972
diff changeset
2312
3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 1972
diff changeset
2313 // 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
2314 if (_name != NULL) _name->decrement_refcount();
3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 1972
diff changeset
2315 // 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
2316 // class can't be referenced anymore).
3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 1972
diff changeset
2317 if (_array_name != NULL) _array_name->decrement_refcount();
3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 1972
diff changeset
2318 if (_source_file_name != NULL) _source_file_name->decrement_refcount();
6203
04ade88d9712 6294277: java -Xdebug crashes on SourceDebugExtension attribute larger than 64K
fparain
parents: 6197
diff changeset
2319 if (_source_debug_extension != NULL) FREE_C_HEAP_ARRAY(char, _source_debug_extension, mtClass);
2177
3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 1972
diff changeset
2320 }
3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 1972
diff changeset
2321
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2322 void InstanceKlass::set_source_file_name(Symbol* n) {
2177
3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 1972
diff changeset
2323 _source_file_name = n;
3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 1972
diff changeset
2324 if (_source_file_name != NULL) _source_file_name->increment_refcount();
3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 1972
diff changeset
2325 }
3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 1972
diff changeset
2326
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2327 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
2328 if (array == NULL) {
04ade88d9712 6294277: java -Xdebug crashes on SourceDebugExtension attribute larger than 64K
fparain
parents: 6197
diff changeset
2329 _source_debug_extension = NULL;
04ade88d9712 6294277: java -Xdebug crashes on SourceDebugExtension attribute larger than 64K
fparain
parents: 6197
diff changeset
2330 } else {
04ade88d9712 6294277: java -Xdebug crashes on SourceDebugExtension attribute larger than 64K
fparain
parents: 6197
diff changeset
2331 // 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
2332 // 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
2333 // 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
2334 // unlikely to happen.
04ade88d9712 6294277: java -Xdebug crashes on SourceDebugExtension attribute larger than 64K
fparain
parents: 6197
diff changeset
2335 assert((length+1) > length, "Overflow checking");
04ade88d9712 6294277: java -Xdebug crashes on SourceDebugExtension attribute larger than 64K
fparain
parents: 6197
diff changeset
2336 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
2337 for (int i = 0; i < length; i++) {
04ade88d9712 6294277: java -Xdebug crashes on SourceDebugExtension attribute larger than 64K
fparain
parents: 6197
diff changeset
2338 sde[i] = array[i];
04ade88d9712 6294277: java -Xdebug crashes on SourceDebugExtension attribute larger than 64K
fparain
parents: 6197
diff changeset
2339 }
04ade88d9712 6294277: java -Xdebug crashes on SourceDebugExtension attribute larger than 64K
fparain
parents: 6197
diff changeset
2340 sde[length] = '\0';
04ade88d9712 6294277: java -Xdebug crashes on SourceDebugExtension attribute larger than 64K
fparain
parents: 6197
diff changeset
2341 _source_debug_extension = sde;
04ade88d9712 6294277: java -Xdebug crashes on SourceDebugExtension attribute larger than 64K
fparain
parents: 6197
diff changeset
2342 }
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2343 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2344
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2345 address InstanceKlass::static_field_addr(int offset) {
6735
aed758eda82a 7195833: NPG: Rename instanceClassLoaderKlass, instanceRefKlass and instanceMirrorKlass
coleenp
parents: 6733
diff changeset
2346 return (address)(offset + InstanceMirrorKlass::offset_of_static_fields() + (intptr_t)java_mirror());
2376
c7f3d0b4570f 7017732: move static fields into Class to prepare for perm gen removal
never
parents: 2357
diff changeset
2347 }
c7f3d0b4570f 7017732: move static fields into Class to prepare for perm gen removal
never
parents: 2357
diff changeset
2348
c7f3d0b4570f 7017732: move static fields into Class to prepare for perm gen removal
never
parents: 2357
diff changeset
2349
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2350 const char* InstanceKlass::signature_name() const {
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2351 const char* src = (const char*) (name()->as_C_string());
a61af66fc99e Initial load
duke
parents:
diff changeset
2352 const int src_length = (int)strlen(src);
a61af66fc99e Initial load
duke
parents:
diff changeset
2353 char* dest = NEW_RESOURCE_ARRAY(char, src_length + 3);
a61af66fc99e Initial load
duke
parents:
diff changeset
2354 int src_index = 0;
a61af66fc99e Initial load
duke
parents:
diff changeset
2355 int dest_index = 0;
a61af66fc99e Initial load
duke
parents:
diff changeset
2356 dest[dest_index++] = 'L';
a61af66fc99e Initial load
duke
parents:
diff changeset
2357 while (src_index < src_length) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2358 dest[dest_index++] = src[src_index++];
a61af66fc99e Initial load
duke
parents:
diff changeset
2359 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2360 dest[dest_index++] = ';';
a61af66fc99e Initial load
duke
parents:
diff changeset
2361 dest[dest_index] = '\0';
a61af66fc99e Initial load
duke
parents:
diff changeset
2362 return dest;
a61af66fc99e Initial load
duke
parents:
diff changeset
2363 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2364
a61af66fc99e Initial load
duke
parents:
diff changeset
2365 // different verisons of is_same_class_package
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2366 bool InstanceKlass::is_same_class_package(Klass* class2) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2367 Klass* class1 = this;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2368 oop classloader1 = InstanceKlass::cast(class1)->class_loader();
6983
070d523b96a7 8001471: Klass::cast() does nothing
hseigel
parents: 6934
diff changeset
2369 Symbol* classname1 = class1->name();
070d523b96a7 8001471: Klass::cast() does nothing
hseigel
parents: 6934
diff changeset
2370
070d523b96a7 8001471: Klass::cast() does nothing
hseigel
parents: 6934
diff changeset
2371 if (class2->oop_is_objArray()) {
6831
d8ce2825b193 8000213: NPG: Should have renamed arrayKlass and typeArrayKlass
coleenp
parents: 6735
diff changeset
2372 class2 = ObjArrayKlass::cast(class2)->bottom_klass();
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2373 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2374 oop classloader2;
6983
070d523b96a7 8001471: Klass::cast() does nothing
hseigel
parents: 6934
diff changeset
2375 if (class2->oop_is_instance()) {
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2376 classloader2 = InstanceKlass::cast(class2)->class_loader();
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2377 } else {
6983
070d523b96a7 8001471: Klass::cast() does nothing
hseigel
parents: 6934
diff changeset
2378 assert(class2->oop_is_typeArray(), "should be type array");
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2379 classloader2 = NULL;
a61af66fc99e Initial load
duke
parents:
diff changeset
2380 }
6983
070d523b96a7 8001471: Klass::cast() does nothing
hseigel
parents: 6934
diff changeset
2381 Symbol* classname2 = class2->name();
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2382
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2383 return InstanceKlass::is_same_class_package(classloader1, classname1,
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2384 classloader2, classname2);
a61af66fc99e Initial load
duke
parents:
diff changeset
2385 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2386
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2387 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
2388 Klass* class1 = this;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2389 oop classloader1 = InstanceKlass::cast(class1)->class_loader();
6983
070d523b96a7 8001471: Klass::cast() does nothing
hseigel
parents: 6934
diff changeset
2390 Symbol* classname1 = class1->name();
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2391
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2392 return InstanceKlass::is_same_class_package(classloader1, classname1,
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2393 classloader2, classname2);
a61af66fc99e Initial load
duke
parents:
diff changeset
2394 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2395
a61af66fc99e Initial load
duke
parents:
diff changeset
2396 // return true if two classes are in the same package, classloader
a61af66fc99e Initial load
duke
parents:
diff changeset
2397 // 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
2398 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
2399 oop class_loader2, Symbol* class_name2) {
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2400 if (class_loader1 != class_loader2) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2401 return false;
665
c89f86385056 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 605
diff changeset
2402 } else if (class_name1 == class_name2) {
c89f86385056 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 605
diff changeset
2403 return true; // skip painful bytewise comparison
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2404 } else {
a61af66fc99e Initial load
duke
parents:
diff changeset
2405 ResourceMark rm;
a61af66fc99e Initial load
duke
parents:
diff changeset
2406
2177
3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 1972
diff changeset
2407 // The Symbol*'s are in UTF8 encoding. Since we only need to check explicitly
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2408 // for ASCII characters ('/', 'L', '['), we can keep them in UTF8 encoding.
a61af66fc99e Initial load
duke
parents:
diff changeset
2409 // 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
2410 const jbyte *name1 = class_name1->base();
3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 1972
diff changeset
2411 const jbyte *name2 = class_name2->base();
3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 1972
diff changeset
2412
3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 1972
diff changeset
2413 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
2414 const jbyte *last_slash2 = UTF8::strrchr(name2, class_name2->utf8_length(), '/');
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2415
a61af66fc99e Initial load
duke
parents:
diff changeset
2416 if ((last_slash1 == NULL) || (last_slash2 == NULL)) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2417 // One of the two doesn't have a package. Only return true
a61af66fc99e Initial load
duke
parents:
diff changeset
2418 // if the other one also doesn't have a package.
a61af66fc99e Initial load
duke
parents:
diff changeset
2419 return last_slash1 == last_slash2;
a61af66fc99e Initial load
duke
parents:
diff changeset
2420 } else {
a61af66fc99e Initial load
duke
parents:
diff changeset
2421 // Skip over '['s
a61af66fc99e Initial load
duke
parents:
diff changeset
2422 if (*name1 == '[') {
a61af66fc99e Initial load
duke
parents:
diff changeset
2423 do {
a61af66fc99e Initial load
duke
parents:
diff changeset
2424 name1++;
a61af66fc99e Initial load
duke
parents:
diff changeset
2425 } while (*name1 == '[');
a61af66fc99e Initial load
duke
parents:
diff changeset
2426 if (*name1 != 'L') {
a61af66fc99e Initial load
duke
parents:
diff changeset
2427 // Something is terribly wrong. Shouldn't be here.
a61af66fc99e Initial load
duke
parents:
diff changeset
2428 return false;
a61af66fc99e Initial load
duke
parents:
diff changeset
2429 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2430 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2431 if (*name2 == '[') {
a61af66fc99e Initial load
duke
parents:
diff changeset
2432 do {
a61af66fc99e Initial load
duke
parents:
diff changeset
2433 name2++;
a61af66fc99e Initial load
duke
parents:
diff changeset
2434 } while (*name2 == '[');
a61af66fc99e Initial load
duke
parents:
diff changeset
2435 if (*name2 != 'L') {
a61af66fc99e Initial load
duke
parents:
diff changeset
2436 // Something is terribly wrong. Shouldn't be here.
a61af66fc99e Initial load
duke
parents:
diff changeset
2437 return false;
a61af66fc99e Initial load
duke
parents:
diff changeset
2438 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2439 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2440
a61af66fc99e Initial load
duke
parents:
diff changeset
2441 // Check that package part is identical
a61af66fc99e Initial load
duke
parents:
diff changeset
2442 int length1 = last_slash1 - name1;
a61af66fc99e Initial load
duke
parents:
diff changeset
2443 int length2 = last_slash2 - name2;
a61af66fc99e Initial load
duke
parents:
diff changeset
2444
a61af66fc99e Initial load
duke
parents:
diff changeset
2445 return UTF8::equal(name1, length1, name2, length2);
a61af66fc99e Initial load
duke
parents:
diff changeset
2446 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2447 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2448 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2449
652
4aaa9f5e02a8 4766230: Hotspot vtable inconsistencies cause core dumps. 6579515. 6582242.
acorn
parents: 605
diff changeset
2450 // 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
2451 // See JSL 3rd edition 8.4.6.1
4aaa9f5e02a8 4766230: Hotspot vtable inconsistencies cause core dumps. 6579515. 6582242.
acorn
parents: 605
diff changeset
2452 // Assumes name-signature match
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2453 // "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
2454 // 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
2455 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
2456 // Private methods can not be overridden
4aaa9f5e02a8 4766230: Hotspot vtable inconsistencies cause core dumps. 6579515. 6582242.
acorn
parents: 605
diff changeset
2457 if (super_method->is_private()) {
4aaa9f5e02a8 4766230: Hotspot vtable inconsistencies cause core dumps. 6579515. 6582242.
acorn
parents: 605
diff changeset
2458 return false;
4aaa9f5e02a8 4766230: Hotspot vtable inconsistencies cause core dumps. 6579515. 6582242.
acorn
parents: 605
diff changeset
2459 }
4aaa9f5e02a8 4766230: Hotspot vtable inconsistencies cause core dumps. 6579515. 6582242.
acorn
parents: 605
diff changeset
2460 // If super method is accessible, then override
4aaa9f5e02a8 4766230: Hotspot vtable inconsistencies cause core dumps. 6579515. 6582242.
acorn
parents: 605
diff changeset
2461 if ((super_method->is_protected()) ||
4aaa9f5e02a8 4766230: Hotspot vtable inconsistencies cause core dumps. 6579515. 6582242.
acorn
parents: 605
diff changeset
2462 (super_method->is_public())) {
4aaa9f5e02a8 4766230: Hotspot vtable inconsistencies cause core dumps. 6579515. 6582242.
acorn
parents: 605
diff changeset
2463 return true;
4aaa9f5e02a8 4766230: Hotspot vtable inconsistencies cause core dumps. 6579515. 6582242.
acorn
parents: 605
diff changeset
2464 }
4aaa9f5e02a8 4766230: Hotspot vtable inconsistencies cause core dumps. 6579515. 6582242.
acorn
parents: 605
diff changeset
2465 // Package-private methods are not inherited outside of package
4aaa9f5e02a8 4766230: Hotspot vtable inconsistencies cause core dumps. 6579515. 6582242.
acorn
parents: 605
diff changeset
2466 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
2467 return(is_same_class_package(targetclassloader(), targetclassname));
652
4aaa9f5e02a8 4766230: Hotspot vtable inconsistencies cause core dumps. 6579515. 6582242.
acorn
parents: 605
diff changeset
2468 }
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2469
665
c89f86385056 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 605
diff changeset
2470 /* 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
2471 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
2472 Symbol*& simple_name_result, TRAPS) {
665
c89f86385056 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 605
diff changeset
2473 ...
c89f86385056 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 605
diff changeset
2474 }
c89f86385056 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 605
diff changeset
2475 */
c89f86385056 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 605
diff changeset
2476
c89f86385056 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 605
diff changeset
2477 // 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
2478 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
2479 Klass* class2_oop, TRAPS) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2480 if (class2_oop == class1()) return true;
6983
070d523b96a7 8001471: Klass::cast() does nothing
hseigel
parents: 6934
diff changeset
2481 if (!class2_oop->oop_is_instance()) return false;
665
c89f86385056 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 605
diff changeset
2482 instanceKlassHandle class2(THREAD, class2_oop);
c89f86385056 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 605
diff changeset
2483
c89f86385056 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 605
diff changeset
2484 // must be in same package before we try anything else
c89f86385056 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 605
diff changeset
2485 if (!class1->is_same_class_package(class2->class_loader(), class2->name()))
c89f86385056 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 605
diff changeset
2486 return false;
c89f86385056 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 605
diff changeset
2487
c89f86385056 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 605
diff changeset
2488 // As long as there is an outer1.getEnclosingClass,
c89f86385056 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 605
diff changeset
2489 // shift the search outward.
c89f86385056 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 605
diff changeset
2490 instanceKlassHandle outer1 = class1;
c89f86385056 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 605
diff changeset
2491 for (;;) {
c89f86385056 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 605
diff changeset
2492 // As we walk along, look for equalities between outer1 and class2.
c89f86385056 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 605
diff changeset
2493 // Eventually, the walks will terminate as outer1 stops
c89f86385056 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 605
diff changeset
2494 // 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
2495 bool ignore_inner_is_member;
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2496 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
2497 CHECK_false);
665
c89f86385056 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 605
diff changeset
2498 if (next == NULL) break;
c89f86385056 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 605
diff changeset
2499 if (next == class2()) return true;
c89f86385056 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 605
diff changeset
2500 outer1 = instanceKlassHandle(THREAD, next);
c89f86385056 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 605
diff changeset
2501 }
c89f86385056 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 605
diff changeset
2502
c89f86385056 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 605
diff changeset
2503 // Now do the same for class2.
c89f86385056 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 605
diff changeset
2504 instanceKlassHandle outer2 = class2;
c89f86385056 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 605
diff changeset
2505 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
2506 bool ignore_inner_is_member;
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2507 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
2508 CHECK_false);
665
c89f86385056 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 605
diff changeset
2509 if (next == NULL) break;
c89f86385056 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 605
diff changeset
2510 // Might as well check the new outer against all available values.
c89f86385056 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 605
diff changeset
2511 if (next == class1()) return true;
c89f86385056 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 605
diff changeset
2512 if (next == outer1()) return true;
c89f86385056 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 605
diff changeset
2513 outer2 = instanceKlassHandle(THREAD, next);
c89f86385056 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 605
diff changeset
2514 }
c89f86385056 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 605
diff changeset
2515
c89f86385056 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 605
diff changeset
2516 // 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
2517 // two classes, we know they are in separate package members.
c89f86385056 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 605
diff changeset
2518 return false;
c89f86385056 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 605
diff changeset
2519 }
c89f86385056 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 605
diff changeset
2520
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2521
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2522 jint InstanceKlass::compute_modifier_flags(TRAPS) const {
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2523 jint access = access_flags().as_int();
a61af66fc99e Initial load
duke
parents:
diff changeset
2524
a61af66fc99e Initial load
duke
parents:
diff changeset
2525 // 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
2526 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
2527 InnerClassesIterator iter(ik);
f7c4174b33ba 7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents: 4739
diff changeset
2528 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
2529 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
2530 // 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
2531 // 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
2532 if (ioff == 0) continue;
f7c4174b33ba 7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents: 4739
diff changeset
2533
f7c4174b33ba 7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents: 4739
diff changeset
2534 // 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
2535 // 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
2536 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
2537 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
2538 // 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
2539 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
2540 break;
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2541 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2542 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2543 // Remember to strip ACC_SUPER bit
a61af66fc99e Initial load
duke
parents:
diff changeset
2544 return (access & (~JVM_ACC_SUPER)) & JVM_ACC_WRITTEN_FLAGS;
a61af66fc99e Initial load
duke
parents:
diff changeset
2545 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2546
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2547 jint InstanceKlass::jvmti_class_status() const {
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2548 jint result = 0;
a61af66fc99e Initial load
duke
parents:
diff changeset
2549
a61af66fc99e Initial load
duke
parents:
diff changeset
2550 if (is_linked()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2551 result |= JVMTI_CLASS_STATUS_VERIFIED | JVMTI_CLASS_STATUS_PREPARED;
a61af66fc99e Initial load
duke
parents:
diff changeset
2552 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2553
a61af66fc99e Initial load
duke
parents:
diff changeset
2554 if (is_initialized()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2555 assert(is_linked(), "Class status is not consistent");
a61af66fc99e Initial load
duke
parents:
diff changeset
2556 result |= JVMTI_CLASS_STATUS_INITIALIZED;
a61af66fc99e Initial load
duke
parents:
diff changeset
2557 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2558 if (is_in_error_state()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2559 result |= JVMTI_CLASS_STATUS_ERROR;
a61af66fc99e Initial load
duke
parents:
diff changeset
2560 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2561 return result;
a61af66fc99e Initial load
duke
parents:
diff changeset
2562 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2563
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2564 Method* InstanceKlass::method_at_itable(Klass* holder, int index, TRAPS) {
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2565 itableOffsetEntry* ioe = (itableOffsetEntry*)start_of_itable();
a61af66fc99e Initial load
duke
parents:
diff changeset
2566 int method_table_offset_in_words = ioe->offset()/wordSize;
a61af66fc99e Initial load
duke
parents:
diff changeset
2567 int nof_interfaces = (method_table_offset_in_words - itable_offset_in_words())
a61af66fc99e Initial load
duke
parents:
diff changeset
2568 / itableOffsetEntry::size();
a61af66fc99e Initial load
duke
parents:
diff changeset
2569
a61af66fc99e Initial load
duke
parents:
diff changeset
2570 for (int cnt = 0 ; ; cnt ++, ioe ++) {
605
98cb887364d3 6810672: Comment typos
twisti
parents: 356
diff changeset
2571 // If the interface isn't implemented by the receiver class,
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2572 // the VM should throw IncompatibleClassChangeError.
a61af66fc99e Initial load
duke
parents:
diff changeset
2573 if (cnt >= nof_interfaces) {
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2574 THROW_NULL(vmSymbols::java_lang_IncompatibleClassChangeError());
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2575 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2576
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2577 Klass* ik = ioe->interface_klass();
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2578 if (ik == holder) break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2579 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2580
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2581 itableMethodEntry* ime = ioe->first_method_entry(this);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2582 Method* m = ime[index].method();
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2583 if (m == NULL) {
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2584 THROW_NULL(vmSymbols::java_lang_AbstractMethodError());
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2585 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2586 return m;
a61af66fc99e Initial load
duke
parents:
diff changeset
2587 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2588
a61af66fc99e Initial load
duke
parents:
diff changeset
2589 // On-stack replacement stuff
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2590 void InstanceKlass::add_osr_nmethod(nmethod* n) {
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2591 // only one compilation can be active
a61af66fc99e Initial load
duke
parents:
diff changeset
2592 NEEDS_CLEANUP
a61af66fc99e Initial load
duke
parents:
diff changeset
2593 // This is a short non-blocking critical region, so the no safepoint check is ok.
a61af66fc99e Initial load
duke
parents:
diff changeset
2594 OsrList_lock->lock_without_safepoint_check();
a61af66fc99e Initial load
duke
parents:
diff changeset
2595 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
2596 n->set_osr_link(osr_nmethods_head());
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2597 set_osr_nmethods_head(n);
1783
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1751
diff changeset
2598 // Raise the highest osr level if necessary
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1751
diff changeset
2599 if (TieredCompilation) {
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2600 Method* m = n->method();
1783
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1751
diff changeset
2601 m->set_highest_osr_comp_level(MAX2(m->highest_osr_comp_level(), n->comp_level()));
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1751
diff changeset
2602 }
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2603 // Remember to unlock again
a61af66fc99e Initial load
duke
parents:
diff changeset
2604 OsrList_lock->unlock();
1783
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1751
diff changeset
2605
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1751
diff changeset
2606 // Get rid of the osr methods for the same bci that have lower levels.
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1751
diff changeset
2607 if (TieredCompilation) {
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1751
diff changeset
2608 for (int l = CompLevel_limited_profile; l < n->comp_level(); l++) {
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1751
diff changeset
2609 nmethod *inv = lookup_osr_nmethod(n->method(), n->osr_entry_bci(), l, true);
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1751
diff changeset
2610 if (inv != NULL && inv->is_in_use()) {
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1751
diff changeset
2611 inv->make_not_entrant();
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1751
diff changeset
2612 }
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1751
diff changeset
2613 }
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1751
diff changeset
2614 }
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2615 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2616
a61af66fc99e Initial load
duke
parents:
diff changeset
2617
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2618 void InstanceKlass::remove_osr_nmethod(nmethod* n) {
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2619 // This is a short non-blocking critical region, so the no safepoint check is ok.
a61af66fc99e Initial load
duke
parents:
diff changeset
2620 OsrList_lock->lock_without_safepoint_check();
a61af66fc99e Initial load
duke
parents:
diff changeset
2621 assert(n->is_osr_method(), "wrong kind of nmethod");
a61af66fc99e Initial load
duke
parents:
diff changeset
2622 nmethod* last = NULL;
a61af66fc99e Initial load
duke
parents:
diff changeset
2623 nmethod* cur = osr_nmethods_head();
1783
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1751
diff changeset
2624 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
2625 Method* m = n->method();
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2626 // Search for match
a61af66fc99e Initial load
duke
parents:
diff changeset
2627 while(cur != NULL && cur != n) {
1783
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1751
diff changeset
2628 if (TieredCompilation) {
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1751
diff changeset
2629 // Find max level before n
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1751
diff changeset
2630 max_level = MAX2(max_level, cur->comp_level());
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1751
diff changeset
2631 }
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2632 last = cur;
989
148e5441d916 6863023: need non-perm oops in code cache for JSR 292
jrose
parents: 876
diff changeset
2633 cur = cur->osr_link();
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2634 }
1783
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1751
diff changeset
2635 nmethod* next = NULL;
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2636 if (cur == n) {
1783
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1751
diff changeset
2637 next = cur->osr_link();
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2638 if (last == NULL) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2639 // Remove first element
1783
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1751
diff changeset
2640 set_osr_nmethods_head(next);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2641 } else {
1783
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1751
diff changeset
2642 last->set_osr_link(next);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2643 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2644 }
989
148e5441d916 6863023: need non-perm oops in code cache for JSR 292
jrose
parents: 876
diff changeset
2645 n->set_osr_link(NULL);
1783
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1751
diff changeset
2646 if (TieredCompilation) {
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1751
diff changeset
2647 cur = next;
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1751
diff changeset
2648 while (cur != NULL) {
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1751
diff changeset
2649 // Find max level after n
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1751
diff changeset
2650 max_level = MAX2(max_level, cur->comp_level());
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1751
diff changeset
2651 cur = cur->osr_link();
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1751
diff changeset
2652 }
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1751
diff changeset
2653 m->set_highest_osr_comp_level(max_level);
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1751
diff changeset
2654 }
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2655 // Remember to unlock again
a61af66fc99e Initial load
duke
parents:
diff changeset
2656 OsrList_lock->unlock();
a61af66fc99e Initial load
duke
parents:
diff changeset
2657 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2658
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2659 nmethod* InstanceKlass::lookup_osr_nmethod(Method* const m, int bci, int comp_level, bool match_level) const {
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2660 // This is a short non-blocking critical region, so the no safepoint check is ok.
a61af66fc99e Initial load
duke
parents:
diff changeset
2661 OsrList_lock->lock_without_safepoint_check();
a61af66fc99e Initial load
duke
parents:
diff changeset
2662 nmethod* osr = osr_nmethods_head();
1783
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1751
diff changeset
2663 nmethod* best = NULL;
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2664 while (osr != NULL) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2665 assert(osr->is_osr_method(), "wrong kind of nmethod found in chain");
1783
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1751
diff changeset
2666 // There can be a time when a c1 osr method exists but we are waiting
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1751
diff changeset
2667 // for a c2 version. When c2 completes its osr nmethod we will trash
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1751
diff changeset
2668 // the c1 version and only be able to find the c2 version. However
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1751
diff changeset
2669 // while we overflow in the c1 code at back branches we don't want to
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1751
diff changeset
2670 // try and switch to the same code as we are already running
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1751
diff changeset
2671
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2672 if (osr->method() == m &&
a61af66fc99e Initial load
duke
parents:
diff changeset
2673 (bci == InvocationEntryBci || osr->osr_entry_bci() == bci)) {
1783
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1751
diff changeset
2674 if (match_level) {
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1751
diff changeset
2675 if (osr->comp_level() == comp_level) {
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1751
diff changeset
2676 // Found a match - return it.
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1751
diff changeset
2677 OsrList_lock->unlock();
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1751
diff changeset
2678 return osr;
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1751
diff changeset
2679 }
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1751
diff changeset
2680 } else {
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1751
diff changeset
2681 if (best == NULL || (osr->comp_level() > best->comp_level())) {
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1751
diff changeset
2682 if (osr->comp_level() == CompLevel_highest_tier) {
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1751
diff changeset
2683 // Found the best possible - return it.
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1751
diff changeset
2684 OsrList_lock->unlock();
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1751
diff changeset
2685 return osr;
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1751
diff changeset
2686 }
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1751
diff changeset
2687 best = osr;
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1751
diff changeset
2688 }
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1751
diff changeset
2689 }
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2690 }
989
148e5441d916 6863023: need non-perm oops in code cache for JSR 292
jrose
parents: 876
diff changeset
2691 osr = osr->osr_link();
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2692 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2693 OsrList_lock->unlock();
1783
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1751
diff changeset
2694 if (best != NULL && best->comp_level() >= comp_level && match_level == false) {
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1751
diff changeset
2695 return best;
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1751
diff changeset
2696 }
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2697 return NULL;
a61af66fc99e Initial load
duke
parents:
diff changeset
2698 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2699
a61af66fc99e Initial load
duke
parents:
diff changeset
2700 // -----------------------------------------------------------------------------------------------------
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2701 // Printing
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2702
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2703 #ifndef PRODUCT
a61af66fc99e Initial load
duke
parents:
diff changeset
2704
665
c89f86385056 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 605
diff changeset
2705 #define BULLET " - "
c89f86385056 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 605
diff changeset
2706
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2707 static const char* state_names[] = {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2708 "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
2709 };
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2710
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2711 void InstanceKlass::print_on(outputStream* st) const {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2712 assert(is_klass(), "must be klass");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2713 Klass::print_on(st);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2714
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2715 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
2716 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
2717 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
2718 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
2719 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
2720 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
2721 st->print(BULLET"sub: ");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2722 Klass* sub = subklass();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2723 int n;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2724 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
2725 if (n < MaxSubklassPrintSize) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2726 sub->print_value_on(st);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2727 st->print(" ");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2728 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2729 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2730 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
2731 st->cr();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2732
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2733 if (is_interface()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2734 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
2735 if (nof_implementors() == 1) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2736 st->print_cr(BULLET"implementor: ");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2737 st->print(" ");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2738 implementor()->print_value_on(st);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2739 st->cr();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2740 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2741 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2742
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2743 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
2744 st->print(BULLET"methods: "); methods()->print_value_on(st); st->cr();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2745 if (Verbose) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2746 Array<Method*>* method_array = methods();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2747 for(int i = 0; i < method_array->length(); i++) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2748 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
2749 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2750 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2751 st->print(BULLET"method ordering: "); method_ordering()->print_value_on(st); st->cr();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2752 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
2753 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
2754 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
2755 if (class_loader_data() != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2756 st->print(BULLET"class loader data: ");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2757 class_loader_data()->print_value_on(st);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2758 st->cr();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2759 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2760 st->print(BULLET"protection domain: "); ((InstanceKlass*)this)->protection_domain()->print_value_on(st); st->cr();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2761 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
2762 st->print(BULLET"signers: "); signers()->print_value_on(st); st->cr();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2763 st->print(BULLET"init_lock: "); ((oop)init_lock())->print_value_on(st); st->cr();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2764 if (source_file_name() != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2765 st->print(BULLET"source file: ");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2766 source_file_name()->print_value_on(st);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2767 st->cr();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2768 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2769 if (source_debug_extension() != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2770 st->print(BULLET"source debug extension: ");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2771 st->print("%s", source_debug_extension());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2772 st->cr();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2773 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2774 st->print(BULLET"annotations: "); annotations()->print_value_on(st); st->cr();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2775 {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2776 ResourceMark rm;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2777 // PreviousVersionInfo objects returned via PreviousVersionWalker
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2778 // contain a GrowableArray of handles. We have to clean up the
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2779 // GrowableArray _after_ the PreviousVersionWalker destructor
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2780 // has destroyed the handles.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2781 {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2782 bool have_pv = false;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2783 PreviousVersionWalker pvw((InstanceKlass*)this);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2784 for (PreviousVersionInfo * pv_info = pvw.next_previous_version();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2785 pv_info != NULL; pv_info = pvw.next_previous_version()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2786 if (!have_pv)
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2787 st->print(BULLET"previous version: ");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2788 have_pv = true;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2789 pv_info->prev_constant_pool_handle()()->print_value_on(st);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2790 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2791 if (have_pv) st->cr();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2792 } // pvw is cleaned up
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2793 } // rm is cleaned up
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2794
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2795 if (generic_signature() != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2796 st->print(BULLET"generic signature: ");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2797 generic_signature()->print_value_on(st);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2798 st->cr();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2799 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2800 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
2801 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
2802 st->print(BULLET"vtable length %d (start addr: " INTPTR_FORMAT ")", vtable_length(), start_of_vtable()); st->cr();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2803 st->print(BULLET"itable length %d (start addr: " INTPTR_FORMAT ")", itable_length(), start_of_itable()); st->cr();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2804 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
2805 FieldPrinter print_static_field(st);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2806 ((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
2807 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
2808 FieldPrinter print_nonstatic_field(st);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2809 ((InstanceKlass*)this)->do_nonstatic_fields(&print_nonstatic_field);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2810
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2811 st->print(BULLET"non-static oop maps: ");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2812 OopMapBlock* map = start_of_nonstatic_oop_maps();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2813 OopMapBlock* end_map = map + nonstatic_oop_map_count();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2814 while (map < end_map) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2815 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
2816 map++;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2817 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2818 st->cr();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2819 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2820
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2821 #endif //PRODUCT
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2822
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2823 void InstanceKlass::print_value_on(outputStream* st) const {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2824 assert(is_klass(), "must be klass");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2825 name()->print_value_on(st);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2826 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2827
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2828 #ifndef PRODUCT
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2829
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2830 void FieldPrinter::do_field(fieldDescriptor* fd) {
665
c89f86385056 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 605
diff changeset
2831 _st->print(BULLET);
2376
c7f3d0b4570f 7017732: move static fields into Class to prepare for perm gen removal
never
parents: 2357
diff changeset
2832 if (_obj == NULL) {
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2833 fd->print_on(_st);
a61af66fc99e Initial load
duke
parents:
diff changeset
2834 _st->cr();
a61af66fc99e Initial load
duke
parents:
diff changeset
2835 } else {
a61af66fc99e Initial load
duke
parents:
diff changeset
2836 fd->print_on_for(_st, _obj);
a61af66fc99e Initial load
duke
parents:
diff changeset
2837 _st->cr();
a61af66fc99e Initial load
duke
parents:
diff changeset
2838 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2839 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2840
a61af66fc99e Initial load
duke
parents:
diff changeset
2841
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2842 void InstanceKlass::oop_print_on(oop obj, outputStream* st) {
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2843 Klass::oop_print_on(obj, st);
a61af66fc99e Initial load
duke
parents:
diff changeset
2844
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2845 if (this == SystemDictionary::String_klass()) {
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2846 typeArrayOop value = java_lang_String::value(obj);
a61af66fc99e Initial load
duke
parents:
diff changeset
2847 juint offset = java_lang_String::offset(obj);
a61af66fc99e Initial load
duke
parents:
diff changeset
2848 juint length = java_lang_String::length(obj);
a61af66fc99e Initial load
duke
parents:
diff changeset
2849 if (value != NULL &&
a61af66fc99e Initial load
duke
parents:
diff changeset
2850 value->is_typeArray() &&
a61af66fc99e Initial load
duke
parents:
diff changeset
2851 offset <= (juint) value->length() &&
a61af66fc99e Initial load
duke
parents:
diff changeset
2852 offset + length <= (juint) value->length()) {
665
c89f86385056 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 605
diff changeset
2853 st->print(BULLET"string: ");
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2854 Handle h_obj(obj);
a61af66fc99e Initial load
duke
parents:
diff changeset
2855 java_lang_String::print(h_obj, st);
a61af66fc99e Initial load
duke
parents:
diff changeset
2856 st->cr();
a61af66fc99e Initial load
duke
parents:
diff changeset
2857 if (!WizardMode) return; // that is enough
a61af66fc99e Initial load
duke
parents:
diff changeset
2858 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2859 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2860
665
c89f86385056 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 605
diff changeset
2861 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
2862 FieldPrinter print_field(st, obj);
c7f3d0b4570f 7017732: move static fields into Class to prepare for perm gen removal
never
parents: 2357
diff changeset
2863 do_nonstatic_fields(&print_field);
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 if (this == SystemDictionary::Class_klass()) {
665
c89f86385056 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 605
diff changeset
2866 st->print(BULLET"signature: ");
c89f86385056 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 605
diff changeset
2867 java_lang_Class::print_signature(obj, st);
c89f86385056 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 605
diff changeset
2868 st->cr();
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2869 Klass* mirrored_klass = java_lang_Class::as_Klass(obj);
665
c89f86385056 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 605
diff changeset
2870 st->print(BULLET"fake entry for mirror: ");
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2871 mirrored_klass->print_value_on_maybe_null(st);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2872 st->cr();
665
c89f86385056 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 605
diff changeset
2873 st->print(BULLET"fake entry resolved_constructor: ");
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2874 Method* ctor = java_lang_Class::resolved_constructor(obj);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2875 ctor->print_value_on_maybe_null(st);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2876 Klass* array_klass = java_lang_Class::array_klass(obj);
665
c89f86385056 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 605
diff changeset
2877 st->cr();
c89f86385056 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 605
diff changeset
2878 st->print(BULLET"fake entry for array: ");
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2879 array_klass->print_value_on_maybe_null(st);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2880 st->cr();
2376
c7f3d0b4570f 7017732: move static fields into Class to prepare for perm gen removal
never
parents: 2357
diff changeset
2881 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
2882 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
2883 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
2884 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
2885 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
2886 }
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2887 } else if (this == SystemDictionary::MethodType_klass()) {
1039
987e948ebbc8 6815692: method handle code needs some cleanup (post-6655638)
jrose
parents: 997
diff changeset
2888 st->print(BULLET"signature: ");
2357
8033953d67ff 7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents: 2334
diff changeset
2889 java_lang_invoke_MethodType::print_signature(obj, st);
1039
987e948ebbc8 6815692: method handle code needs some cleanup (post-6655638)
jrose
parents: 997
diff changeset
2890 st->cr();
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2891 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2892 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2893
1155
4e6abf09f540 6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents: 1144
diff changeset
2894 #endif //PRODUCT
4e6abf09f540 6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents: 1144
diff changeset
2895
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2896 void InstanceKlass::oop_print_value_on(oop obj, outputStream* st) {
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2897 st->print("a ");
a61af66fc99e Initial load
duke
parents:
diff changeset
2898 name()->print_value_on(st);
a61af66fc99e Initial load
duke
parents:
diff changeset
2899 obj->print_address_on(st);
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2900 if (this == SystemDictionary::String_klass()
665
c89f86385056 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 605
diff changeset
2901 && java_lang_String::value(obj) != NULL) {
c89f86385056 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 605
diff changeset
2902 ResourceMark rm;
c89f86385056 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 605
diff changeset
2903 int len = java_lang_String::length(obj);
c89f86385056 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 605
diff changeset
2904 int plen = (len < 24 ? len : 12);
c89f86385056 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 605
diff changeset
2905 char* str = java_lang_String::as_utf8_string(obj, 0, plen);
c89f86385056 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 605
diff changeset
2906 st->print(" = \"%s\"", str);
c89f86385056 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 605
diff changeset
2907 if (len > plen)
c89f86385056 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 605
diff changeset
2908 st->print("...[%d]", len);
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2909 } else if (this == SystemDictionary::Class_klass()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2910 Klass* k = java_lang_Class::as_Klass(obj);
665
c89f86385056 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 605
diff changeset
2911 st->print(" = ");
c89f86385056 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 605
diff changeset
2912 if (k != NULL) {
c89f86385056 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 605
diff changeset
2913 k->print_value_on(st);
c89f86385056 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 605
diff changeset
2914 } else {
c89f86385056 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 605
diff changeset
2915 const char* tname = type2name(java_lang_Class::primitive_type(obj));
c89f86385056 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 605
diff changeset
2916 st->print("%s", tname ? tname : "type?");
c89f86385056 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 605
diff changeset
2917 }
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2918 } else if (this == SystemDictionary::MethodType_klass()) {
1039
987e948ebbc8 6815692: method handle code needs some cleanup (post-6655638)
jrose
parents: 997
diff changeset
2919 st->print(" = ");
2357
8033953d67ff 7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents: 2334
diff changeset
2920 java_lang_invoke_MethodType::print_signature(obj, st);
665
c89f86385056 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 605
diff changeset
2921 } else if (java_lang_boxing_object::is_instance(obj)) {
c89f86385056 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 605
diff changeset
2922 st->print(" = ");
c89f86385056 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 605
diff changeset
2923 java_lang_boxing_object::print(obj, st);
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2924 } 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
2925 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
2926 if (vmentry != NULL) {
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6203
diff changeset
2927 st->print(" => ");
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6203
diff changeset
2928 vmentry->print_value_on(st);
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6203
diff changeset
2929 }
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2930 } else if (this == SystemDictionary::MemberName_klass()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2931 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
2932 if (vmtarget != NULL) {
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6203
diff changeset
2933 st->print(" = ");
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6203
diff changeset
2934 vmtarget->print_value_on(st);
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6203
diff changeset
2935 } else {
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6203
diff changeset
2936 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
2937 st->print(".");
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6203
diff changeset
2938 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
2939 }
665
c89f86385056 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 605
diff changeset
2940 }
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2941 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2942
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2943 const char* InstanceKlass::internal_name() const {
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2944 return external_name();
a61af66fc99e Initial load
duke
parents:
diff changeset
2945 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2946
a61af66fc99e Initial load
duke
parents:
diff changeset
2947 // Verification
a61af66fc99e Initial load
duke
parents:
diff changeset
2948
a61af66fc99e Initial load
duke
parents:
diff changeset
2949 class VerifyFieldClosure: public OopClosure {
113
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
2950 protected:
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
2951 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
2952 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
2953 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
2954 tty->print_cr("Failed: " PTR_FORMAT " -> " PTR_FORMAT, p, (address)obj);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2955 Universe::print();
a61af66fc99e Initial load
duke
parents:
diff changeset
2956 guarantee(false, "boom");
a61af66fc99e Initial load
duke
parents:
diff changeset
2957 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2958 }
113
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
2959 public:
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
2960 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
2961 virtual void do_oop(narrowOop* p) { VerifyFieldClosure::do_oop_work(p); }
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2962 };
a61af66fc99e Initial load
duke
parents:
diff changeset
2963
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2964 void InstanceKlass::verify_on(outputStream* st) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2965 Klass::verify_on(st);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2966 Thread *thread = Thread::current();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2967
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2968 #ifndef PRODUCT
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2969 // Avoid redundant verifies
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2970 if (_verify_count == Universe::verify_count()) return;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2971 _verify_count = Universe::verify_count();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2972 #endif
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2973 // Verify that klass is present in SystemDictionary
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2974 if (is_loaded() && !is_anonymous()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2975 Symbol* h_name = name();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2976 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
2977 }
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 // Verify static fields
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2980 VerifyFieldClosure blk;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2981
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2982 // Verify vtables
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2983 if (is_linked()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2984 ResourceMark rm(thread);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2985 // $$$ 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
2986 // always seemed a valid generalization. (DLD -- 6/00)
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2987 vtable()->verify(st);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2988 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2989
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2990 // Verify first subklass
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2991 if (subklass_oop() != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2992 guarantee(subklass_oop()->is_metadata(), "should be in metaspace");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2993 guarantee(subklass_oop()->is_klass(), "should be klass");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2994 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2995
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2996 // Verify siblings
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2997 Klass* super = this->super();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2998 Klass* sib = next_sibling();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
2999 if (sib != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3000 if (sib == this) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3001 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
3002 }
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 guarantee(sib->is_metadata(), "should be in metaspace");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3005 guarantee(sib->is_klass(), "should be klass");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3006 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
3007 }
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 // Verify implementor fields
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3010 Klass* im = implementor();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3011 if (im != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3012 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
3013 guarantee(im->is_klass(), "should be klass");
6983
070d523b96a7 8001471: Klass::cast() does nothing
hseigel
parents: 6934
diff changeset
3014 guarantee(!im->is_interface() || im == this,
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3015 "implementors cannot be interfaces");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3016 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3017
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3018 // Verify local interfaces
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3019 if (local_interfaces()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3020 Array<Klass*>* local_interfaces = this->local_interfaces();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3021 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
3022 Klass* e = local_interfaces->at(j);
6983
070d523b96a7 8001471: Klass::cast() does nothing
hseigel
parents: 6934
diff changeset
3023 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
3024 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3025 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3026
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3027 // Verify transitive interfaces
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3028 if (transitive_interfaces() != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3029 Array<Klass*>* transitive_interfaces = this->transitive_interfaces();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3030 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
3031 Klass* e = transitive_interfaces->at(j);
6983
070d523b96a7 8001471: Klass::cast() does nothing
hseigel
parents: 6934
diff changeset
3032 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
3033 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3034 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3035
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3036 // Verify methods
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3037 if (methods() != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3038 Array<Method*>* methods = this->methods();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3039 for (int j = 0; j < methods->length(); j++) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3040 guarantee(methods->at(j)->is_metadata(), "should be in metaspace");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3041 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
3042 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3043 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
3044 Method* m1 = methods->at(j);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3045 Method* m2 = methods->at(j + 1);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3046 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
3047 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3048 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3049
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3050 // Verify method ordering
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3051 if (method_ordering() != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3052 Array<int>* method_ordering = this->method_ordering();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3053 int length = method_ordering->length();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3054 if (JvmtiExport::can_maintain_original_method_order() ||
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3055 (UseSharedSpaces && length != 0)) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3056 guarantee(length == methods()->length(), "invalid method ordering length");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3057 jlong sum = 0;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3058 for (int j = 0; j < length; j++) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3059 int original_index = method_ordering->at(j);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3060 guarantee(original_index >= 0, "invalid method ordering index");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3061 guarantee(original_index < length, "invalid method ordering index");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3062 sum += original_index;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3063 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3064 // Verify sum of indices 0,1,...,length-1
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3065 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
3066 } else {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3067 guarantee(length == 0, "invalid method ordering length");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3068 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3069 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3070
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3071 // Verify JNI static field identifiers
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3072 if (jni_ids() != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3073 jni_ids()->verify(this);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3074 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3075
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3076 // Verify other fields
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3077 if (array_klasses() != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3078 guarantee(array_klasses()->is_metadata(), "should be in metaspace");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3079 guarantee(array_klasses()->is_klass(), "should be klass");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3080 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3081 if (constants() != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3082 guarantee(constants()->is_metadata(), "should be in metaspace");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3083 guarantee(constants()->is_constantPool(), "should be constant pool");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3084 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3085 if (protection_domain() != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3086 guarantee(protection_domain()->is_oop(), "should be oop");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3087 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3088 if (host_klass() != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3089 guarantee(host_klass()->is_metadata(), "should be in metaspace");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3090 guarantee(host_klass()->is_klass(), "should be klass");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3091 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3092 if (signers() != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3093 guarantee(signers()->is_objArray(), "should be obj array");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3094 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3095 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3096
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3097 void InstanceKlass::oop_verify_on(oop obj, outputStream* st) {
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3098 Klass::oop_verify_on(obj, st);
a61af66fc99e Initial load
duke
parents:
diff changeset
3099 VerifyFieldClosure blk;
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3100 obj->oop_iterate_no_header(&blk);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3101 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3102
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3103
113
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
3104 // JNIid class for jfieldIDs only
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
3105 // Note to reviewers:
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
3106 // 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
3107 // in the compressed oops workspace.
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3108 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
3109 _holder = holder;
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
3110 _offset = offset;
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
3111 _next = next;
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
3112 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
3113 }
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3114
a61af66fc99e Initial load
duke
parents:
diff changeset
3115
113
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
3116 JNIid* JNIid::find(int offset) {
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
3117 JNIid* current = this;
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
3118 while (current != NULL) {
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
3119 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
3120 current = current->next();
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
3121 }
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
3122 return NULL;
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
3123 }
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3124
a61af66fc99e Initial load
duke
parents:
diff changeset
3125 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
3126 while (current != NULL) {
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
3127 JNIid* next = current->next();
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
3128 delete current;
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
3129 current = next;
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
3130 }
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
3131 }
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3132
a61af66fc99e Initial load
duke
parents:
diff changeset
3133
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3134 void JNIid::verify(Klass* holder) {
6735
aed758eda82a 7195833: NPG: Rename instanceClassLoaderKlass, instanceRefKlass and instanceMirrorKlass
coleenp
parents: 6733
diff changeset
3135 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
3136 int end_field_offset;
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3137 end_field_offset = first_field_offset + (InstanceKlass::cast(holder)->static_field_size() * wordSize);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3138
113
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
3139 JNIid* current = this;
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
3140 while (current != NULL) {
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
3141 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
3142 #ifdef ASSERT
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
3143 int o = current->offset();
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
3144 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
3145 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
3146 }
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
3147 #endif
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
3148 current = current->next();
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
3149 }
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
3150 }
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3151
a61af66fc99e Initial load
duke
parents:
diff changeset
3152
a61af66fc99e Initial load
duke
parents:
diff changeset
3153 #ifdef ASSERT
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3154 void InstanceKlass::set_init_state(ClassState state) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3155 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
3156 : (_init_state < state);
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
3157 assert(good_state || state == allocated, "illegal state transition");
4739
52b5d32fbfaf 7117052: instanceKlass::_init_state can be u1 type
coleenp
parents: 4006
diff changeset
3158 _init_state = (u1)state;
113
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 52
diff changeset
3159 }
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3160 #endif
a61af66fc99e Initial load
duke
parents:
diff changeset
3161
a61af66fc99e Initial load
duke
parents:
diff changeset
3162
a61af66fc99e Initial load
duke
parents:
diff changeset
3163 // RedefineClasses() support for previous versions:
a61af66fc99e Initial load
duke
parents:
diff changeset
3164
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3165 // Purge previous versions
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3166 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
3167 if (ik->previous_versions() != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3168 // 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
3169 // while it is safe to do so.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3170
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3171 int deleted_count = 0; // leave debugging breadcrumbs
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3172 int live_count = 0;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3173 ClassLoaderData* loader_data = ik->class_loader_data() == NULL ?
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3174 ClassLoaderData::the_null_class_loader_data() :
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3175 ik->class_loader_data();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3176
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3177 // RC_TRACE macro has an embedded ResourceMark
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3178 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
3179 ik->external_name(), ik->previous_versions()->length()));
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3180
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3181 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
3182 // check the previous versions array
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3183 PreviousVersionNode * pv_node = ik->previous_versions()->at(i);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3184 ConstantPool* cp_ref = pv_node->prev_constant_pool();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3185 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
3186
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3187 ConstantPool* pvcp = cp_ref;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3188 if (!pvcp->on_stack()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3189 // 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
3190 // 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
3191 // and this previous version node.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3192 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
3193 if (method_refs != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3194 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
3195 Method* method = method_refs->at(j);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3196 assert(method != NULL, "method ref was unexpectedly cleared");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3197 method_refs->remove_at(j);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3198 // method will be freed with associated class.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3199 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3200 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3201 // Remove the constant pool
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3202 delete pv_node;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3203 // 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
3204 // do anything special with the index.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3205 ik->previous_versions()->remove_at(i);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3206 deleted_count++;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3207 continue;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3208 } else {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3209 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
3210 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
3211 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
3212 live_count++;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3213 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3214
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3215 // 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
3216 // the others or mark them as obsolete.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3217 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
3218 if (method_refs != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3219 RC_TRACE(0x00000200, ("purge: previous methods length=%d",
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3220 method_refs->length()));
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3221 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
3222 Method* method = method_refs->at(j);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3223 assert(method != NULL, "method ref was unexpectedly cleared");
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 // 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
3226 // 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
3227 // 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
3228 if (!method->on_stack()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3229 method_refs->remove_at(j);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3230 } else if (emcp_method_count == 0) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3231 method->set_is_obsolete();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3232 } else {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3233 // RC_TRACE macro has an embedded ResourceMark
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3234 RC_TRACE(0x00000200,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3235 ("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
3236 method->name()->as_C_string(),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3237 method->signature()->as_C_string(), j, i));
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3238 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3239 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3240 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3241 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3242 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
3243 RC_TRACE(0x00000200,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3244 ("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
3245 deleted_count));
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 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3248
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3249 // External interface for use during class unloading.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3250 void InstanceKlass::purge_previous_versions(InstanceKlass* ik) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3251 // 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
3252 purge_previous_versions_internal(ik, 1);
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 // Potentially add an information node that contains pointers to the
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3257 // 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
3258 // 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
3259 // 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
3260 // 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
3261 // 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
3262 //
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3263 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
3264 BitMap* emcp_methods, int emcp_method_count) {
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3265 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
3266 "only VMThread can add previous versions");
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3267
a61af66fc99e Initial load
duke
parents:
diff changeset
3268 if (_previous_versions == NULL) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3269 // This is the first previous version so make some space.
a61af66fc99e Initial load
duke
parents:
diff changeset
3270 // Start with 2 elements under the assumption that the class
a61af66fc99e Initial load
duke
parents:
diff changeset
3271 // won't be redefined much.
6197
d2a62e0f25eb 6995781: Native Memory Tracking (Phase 1)
zgu
parents: 6038
diff changeset
3272 _previous_versions = new (ResourceObj::C_HEAP, mtClass)
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3273 GrowableArray<PreviousVersionNode *>(2, true);
a61af66fc99e Initial load
duke
parents:
diff changeset
3274 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3275
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3276 ConstantPool* cp_ref = ikh->constants();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3277
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3278 // RC_TRACE macro has an embedded ResourceMark
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3279 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
3280 "on_stack=%d",
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3281 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
3282 cp_ref->on_stack()));
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3283
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3284 // 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
3285 // 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
3286 // 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
3287 // 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
3288 // 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
3289 Array<Method*>* old_methods = ikh->methods();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3290
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3291 if (cp_ref->on_stack()) {
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3292 PreviousVersionNode * pv_node = NULL;
a61af66fc99e Initial load
duke
parents:
diff changeset
3293 if (emcp_method_count == 0) {
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3294 // non-shared ConstantPool gets a reference
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3295 pv_node = new PreviousVersionNode(cp_ref, !cp_ref->is_shared(), NULL);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3296 RC_TRACE(0x00000400,
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3297 ("add: all methods are obsolete; flushing any EMCP refs"));
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3298 } else {
a61af66fc99e Initial load
duke
parents:
diff changeset
3299 int local_count = 0;
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3300 GrowableArray<Method*>* method_refs = new (ResourceObj::C_HEAP, mtClass)
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3301 GrowableArray<Method*>(emcp_method_count, true);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3302 for (int i = 0; i < old_methods->length(); i++) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3303 if (emcp_methods->at(i)) {
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3304 // this old method is EMCP. Save it only if it's on the stack
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3305 Method* old_method = old_methods->at(i);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3306 if (old_method->on_stack()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3307 method_refs->append(old_method);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3308 }
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3309 if (++local_count >= emcp_method_count) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3310 // no more EMCP methods so bail out now
a61af66fc99e Initial load
duke
parents:
diff changeset
3311 break;
a61af66fc99e Initial load
duke
parents:
diff changeset
3312 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3313 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3314 }
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3315 // non-shared ConstantPool gets a reference
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3316 pv_node = new PreviousVersionNode(cp_ref, !cp_ref->is_shared(), method_refs);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3317 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3318 // append new previous version.
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3319 _previous_versions->append(pv_node);
6725
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
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3322 // 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
3323 // is a good time to clear out unused references.
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3324
a61af66fc99e Initial load
duke
parents:
diff changeset
3325 RC_TRACE(0x00000400, ("add: previous version length=%d",
a61af66fc99e Initial load
duke
parents:
diff changeset
3326 _previous_versions->length()));
a61af66fc99e Initial load
duke
parents:
diff changeset
3327
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3328 // Purge previous versions not executing on the stack
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3329 purge_previous_versions_internal(this, emcp_method_count);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3330
a61af66fc99e Initial load
duke
parents:
diff changeset
3331 int obsolete_method_count = old_methods->length() - emcp_method_count;
a61af66fc99e Initial load
duke
parents:
diff changeset
3332
a61af66fc99e Initial load
duke
parents:
diff changeset
3333 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
3334 _previous_versions->length() > 0) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3335 // We have a mix of obsolete and EMCP methods so we have to
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3336 // clear out any matching EMCP method entries the hard way.
a61af66fc99e Initial load
duke
parents:
diff changeset
3337 int local_count = 0;
a61af66fc99e Initial load
duke
parents:
diff changeset
3338 for (int i = 0; i < old_methods->length(); i++) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3339 if (!emcp_methods->at(i)) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3340 // only obsolete methods are interesting
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3341 Method* old_method = old_methods->at(i);
2177
3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 1972
diff changeset
3342 Symbol* m_name = old_method->name();
3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 1972
diff changeset
3343 Symbol* m_signature = old_method->signature();
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3344
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3345 // we might not have added the last entry
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3346 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
3347 // 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
3348 PreviousVersionNode * pv_node = _previous_versions->at(j);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3349
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3350 GrowableArray<Method*>* method_refs = pv_node->prev_EMCP_methods();
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3351 if (method_refs == NULL) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3352 // We have run into a PreviousVersion generation where
a61af66fc99e Initial load
duke
parents:
diff changeset
3353 // all methods were made obsolete during that generation's
a61af66fc99e Initial load
duke
parents:
diff changeset
3354 // RedefineClasses() operation. At the time of that
a61af66fc99e Initial load
duke
parents:
diff changeset
3355 // operation, all EMCP methods were flushed so we don't
a61af66fc99e Initial load
duke
parents:
diff changeset
3356 // have to go back any further.
a61af66fc99e Initial load
duke
parents:
diff changeset
3357 //
a61af66fc99e Initial load
duke
parents:
diff changeset
3358 // A NULL method_refs is different than an empty method_refs.
a61af66fc99e Initial load
duke
parents:
diff changeset
3359 // We cannot infer any optimizations about older generations
a61af66fc99e Initial load
duke
parents:
diff changeset
3360 // from an empty method_refs for the current generation.
a61af66fc99e Initial load
duke
parents:
diff changeset
3361 break;
a61af66fc99e Initial load
duke
parents:
diff changeset
3362 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3363
a61af66fc99e Initial load
duke
parents:
diff changeset
3364 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
3365 Method* method = method_refs->at(k);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3366
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3367 if (!method->is_obsolete() &&
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3368 method->name() == m_name &&
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3369 method->signature() == m_signature) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3370 // The current RedefineClasses() call has made all EMCP
a61af66fc99e Initial load
duke
parents:
diff changeset
3371 // 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
3372 // and remove the reference.
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3373 RC_TRACE(0x00000400,
a61af66fc99e Initial load
duke
parents:
diff changeset
3374 ("add: %s(%s): flush obsolete method @%d in version @%d",
a61af66fc99e Initial load
duke
parents:
diff changeset
3375 m_name->as_C_string(), m_signature->as_C_string(), k, j));
a61af66fc99e Initial load
duke
parents:
diff changeset
3376
a61af66fc99e Initial load
duke
parents:
diff changeset
3377 method->set_is_obsolete();
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3378 // 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
3379 // clean up later.
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3380 break;
a61af66fc99e Initial load
duke
parents:
diff changeset
3381 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3382 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3383
a61af66fc99e Initial load
duke
parents:
diff changeset
3384 // The previous loop may not find a matching EMCP method, but
a61af66fc99e Initial load
duke
parents:
diff changeset
3385 // that doesn't mean that we can optimize and not go any
a61af66fc99e Initial load
duke
parents:
diff changeset
3386 // 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
3387 // method for this generation could have already been deleted,
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3388 // 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
3389 // been deleted.
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3390 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3391
a61af66fc99e Initial load
duke
parents:
diff changeset
3392 if (++local_count >= obsolete_method_count) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3393 // no more obsolete methods so bail out now
a61af66fc99e Initial load
duke
parents:
diff changeset
3394 break;
a61af66fc99e Initial load
duke
parents:
diff changeset
3395 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3396 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3397 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3398 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3399 } // end add_previous_version()
a61af66fc99e Initial load
duke
parents:
diff changeset
3400
a61af66fc99e Initial load
duke
parents:
diff changeset
3401
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3402 // Determine if InstanceKlass has a previous version.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3403 bool InstanceKlass::has_previous_version() const {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3404 return (_previous_versions != NULL && _previous_versions->length() > 0);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3405 } // end has_previous_version()
a61af66fc99e Initial load
duke
parents:
diff changeset
3406
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3407
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3408 Method* InstanceKlass::method_with_idnum(int idnum) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3409 Method* m = NULL;
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3410 if (idnum < methods()->length()) {
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3411 m = methods()->at(idnum);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3412 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3413 if (m == NULL || m->method_idnum() != idnum) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3414 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
3415 m = methods()->at(index);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3416 if (m->method_idnum() == idnum) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3417 return m;
a61af66fc99e Initial load
duke
parents:
diff changeset
3418 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3419 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3420 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3421 return m;
a61af66fc99e Initial load
duke
parents:
diff changeset
3422 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3423
a61af66fc99e Initial load
duke
parents:
diff changeset
3424
a61af66fc99e Initial load
duke
parents:
diff changeset
3425 // 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
3426 // the InstanceKlass.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3427 PreviousVersionNode::PreviousVersionNode(ConstantPool* prev_constant_pool,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3428 bool prev_cp_is_weak, GrowableArray<Method*>* prev_EMCP_methods) {
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3429
a61af66fc99e Initial load
duke
parents:
diff changeset
3430 _prev_constant_pool = prev_constant_pool;
47
2c106685d6d0 6497639: 4/3 Profiling Swing application caused JVM crash
dcubed
parents: 0
diff changeset
3431 _prev_cp_is_weak = prev_cp_is_weak;
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3432 _prev_EMCP_methods = prev_EMCP_methods;
a61af66fc99e Initial load
duke
parents:
diff changeset
3433 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3434
a61af66fc99e Initial load
duke
parents:
diff changeset
3435
a61af66fc99e Initial load
duke
parents:
diff changeset
3436 // Destroy a PreviousVersionNode
a61af66fc99e Initial load
duke
parents:
diff changeset
3437 PreviousVersionNode::~PreviousVersionNode() {
a61af66fc99e Initial load
duke
parents:
diff changeset
3438 if (_prev_constant_pool != NULL) {
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3439 _prev_constant_pool = NULL;
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3440 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3441
a61af66fc99e Initial load
duke
parents:
diff changeset
3442 if (_prev_EMCP_methods != NULL) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3443 delete _prev_EMCP_methods;
a61af66fc99e Initial load
duke
parents:
diff changeset
3444 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3445 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3446
a61af66fc99e Initial load
duke
parents:
diff changeset
3447
a61af66fc99e Initial load
duke
parents:
diff changeset
3448 // Construct a PreviousVersionInfo entry
a61af66fc99e Initial load
duke
parents:
diff changeset
3449 PreviousVersionInfo::PreviousVersionInfo(PreviousVersionNode *pv_node) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3450 _prev_constant_pool_handle = constantPoolHandle(); // NULL handle
a61af66fc99e Initial load
duke
parents:
diff changeset
3451 _prev_EMCP_method_handles = NULL;
a61af66fc99e Initial load
duke
parents:
diff changeset
3452
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3453 ConstantPool* cp = pv_node->prev_constant_pool();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3454 assert(cp != NULL, "constant pool ref was unexpectedly cleared");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3455 if (cp == NULL) {
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3456 return; // robustness
a61af66fc99e Initial load
duke
parents:
diff changeset
3457 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3458
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3459 // make the ConstantPool* safe to return
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3460 _prev_constant_pool_handle = constantPoolHandle(cp);
a61af66fc99e Initial load
duke
parents:
diff changeset
3461
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3462 GrowableArray<Method*>* method_refs = pv_node->prev_EMCP_methods();
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3463 if (method_refs == NULL) {
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3464 // the InstanceKlass did not have any EMCP methods
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3465 return;
a61af66fc99e Initial load
duke
parents:
diff changeset
3466 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3467
a61af66fc99e Initial load
duke
parents:
diff changeset
3468 _prev_EMCP_method_handles = new GrowableArray<methodHandle>(10);
a61af66fc99e Initial load
duke
parents:
diff changeset
3469
a61af66fc99e Initial load
duke
parents:
diff changeset
3470 int n_methods = method_refs->length();
a61af66fc99e Initial load
duke
parents:
diff changeset
3471 for (int i = 0; i < n_methods; i++) {
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3472 Method* method = method_refs->at(i);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3473 assert (method != NULL, "method has been cleared");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3474 if (method == NULL) {
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3475 continue; // robustness
a61af66fc99e Initial load
duke
parents:
diff changeset
3476 }
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3477 // make the Method* safe to return
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3478 _prev_EMCP_method_handles->append(methodHandle(method));
a61af66fc99e Initial load
duke
parents:
diff changeset
3479 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3480 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3481
a61af66fc99e Initial load
duke
parents:
diff changeset
3482
a61af66fc99e Initial load
duke
parents:
diff changeset
3483 // Destroy a PreviousVersionInfo
a61af66fc99e Initial load
duke
parents:
diff changeset
3484 PreviousVersionInfo::~PreviousVersionInfo() {
a61af66fc99e Initial load
duke
parents:
diff changeset
3485 // Since _prev_EMCP_method_handles is not C-heap allocated, we
a61af66fc99e Initial load
duke
parents:
diff changeset
3486 // don't have to delete it.
a61af66fc99e Initial load
duke
parents:
diff changeset
3487 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3488
a61af66fc99e Initial load
duke
parents:
diff changeset
3489
a61af66fc99e Initial load
duke
parents:
diff changeset
3490 // Construct a helper for walking the previous versions array
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3491 PreviousVersionWalker::PreviousVersionWalker(InstanceKlass *ik) {
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3492 _previous_versions = ik->previous_versions();
a61af66fc99e Initial load
duke
parents:
diff changeset
3493 _current_index = 0;
a61af66fc99e Initial load
duke
parents:
diff changeset
3494 // _hm needs no initialization
a61af66fc99e Initial load
duke
parents:
diff changeset
3495 _current_p = NULL;
a61af66fc99e Initial load
duke
parents:
diff changeset
3496 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3497
a61af66fc99e Initial load
duke
parents:
diff changeset
3498
a61af66fc99e Initial load
duke
parents:
diff changeset
3499 // Destroy a PreviousVersionWalker
a61af66fc99e Initial load
duke
parents:
diff changeset
3500 PreviousVersionWalker::~PreviousVersionWalker() {
a61af66fc99e Initial load
duke
parents:
diff changeset
3501 // Delete the current info just in case the caller didn't walk to
a61af66fc99e Initial load
duke
parents:
diff changeset
3502 // the end of the previous versions list. No harm if _current_p is
a61af66fc99e Initial load
duke
parents:
diff changeset
3503 // already NULL.
a61af66fc99e Initial load
duke
parents:
diff changeset
3504 delete _current_p;
a61af66fc99e Initial load
duke
parents:
diff changeset
3505
a61af66fc99e Initial load
duke
parents:
diff changeset
3506 // When _hm is destroyed, all the Handles returned in
a61af66fc99e Initial load
duke
parents:
diff changeset
3507 // PreviousVersionInfo objects will be destroyed.
a61af66fc99e Initial load
duke
parents:
diff changeset
3508 // Also, after this destructor is finished it will be
a61af66fc99e Initial load
duke
parents:
diff changeset
3509 // safe to delete the GrowableArray allocated in the
a61af66fc99e Initial load
duke
parents:
diff changeset
3510 // PreviousVersionInfo objects.
a61af66fc99e Initial load
duke
parents:
diff changeset
3511 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3512
a61af66fc99e Initial load
duke
parents:
diff changeset
3513
a61af66fc99e Initial load
duke
parents:
diff changeset
3514 // Return the interesting information for the next previous version
a61af66fc99e Initial load
duke
parents:
diff changeset
3515 // of the klass. Returns NULL if there are no more previous versions.
a61af66fc99e Initial load
duke
parents:
diff changeset
3516 PreviousVersionInfo* PreviousVersionWalker::next_previous_version() {
a61af66fc99e Initial load
duke
parents:
diff changeset
3517 if (_previous_versions == NULL) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3518 // no previous versions so nothing to return
a61af66fc99e Initial load
duke
parents:
diff changeset
3519 return NULL;
a61af66fc99e Initial load
duke
parents:
diff changeset
3520 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3521
a61af66fc99e Initial load
duke
parents:
diff changeset
3522 delete _current_p; // cleanup the previous info for the caller
a61af66fc99e Initial load
duke
parents:
diff changeset
3523 _current_p = NULL; // reset to NULL so we don't delete same object twice
a61af66fc99e Initial load
duke
parents:
diff changeset
3524
a61af66fc99e Initial load
duke
parents:
diff changeset
3525 int length = _previous_versions->length();
a61af66fc99e Initial load
duke
parents:
diff changeset
3526
a61af66fc99e Initial load
duke
parents:
diff changeset
3527 while (_current_index < length) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3528 PreviousVersionNode * pv_node = _previous_versions->at(_current_index++);
6197
d2a62e0f25eb 6995781: Native Memory Tracking (Phase 1)
zgu
parents: 6038
diff changeset
3529 PreviousVersionInfo * pv_info = new (ResourceObj::C_HEAP, mtClass)
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3530 PreviousVersionInfo(pv_node);
a61af66fc99e Initial load
duke
parents:
diff changeset
3531
a61af66fc99e Initial load
duke
parents:
diff changeset
3532 constantPoolHandle cp_h = pv_info->prev_constant_pool_handle();
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3533 assert (!cp_h.is_null(), "null cp found in previous version");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3534
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3535 // The caller will need to delete pv_info when they are done with it.
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3536 _current_p = pv_info;
a61af66fc99e Initial load
duke
parents:
diff changeset
3537 return pv_info;
a61af66fc99e Initial load
duke
parents:
diff changeset
3538 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3539
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
3540 // all of the underlying nodes' info has been deleted
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3541 return NULL;
a61af66fc99e Initial load
duke
parents:
diff changeset
3542 } // end next_previous_version()