Mercurial > hg > truffle
annotate src/share/vm/oops/instanceKlassKlass.cpp @ 6038:8bafad97cd26
7158552: The instanceKlsss::_host_klass is only needed for anonymous class for JSR 292 support.
Summary: Change the _host_klass to be conditionally created embedded instanceKlass field.
Reviewed-by: jrose, coleenp, dholmes
| author | jiangli |
|---|---|
| date | Wed, 02 May 2012 13:21:36 -0400 |
| parents | 49036505ab5f |
| children | 04ade88d9712 |
| rev | line source |
|---|---|
| 0 | 1 /* |
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2 * Copyright (c) 1997, 2012, Oracle and/or its affiliates. All rights reserved. |
| 0 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 4 * | |
| 5 * This code is free software; you can redistribute it and/or modify it | |
| 6 * under the terms of the GNU General Public License version 2 only, as | |
| 7 * published by the Free Software Foundation. | |
| 8 * | |
| 9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
| 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 12 * version 2 for more details (a copy is included in the LICENSE file that | |
| 13 * accompanied this code). | |
| 14 * | |
| 15 * You should have received a copy of the GNU General Public License version | |
| 16 * 2 along with this work; if not, write to the Free Software Foundation, | |
| 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 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. |
| 0 | 22 * |
| 23 */ | |
| 24 | |
| 1972 | 25 #include "precompiled.hpp" |
| 26 #include "classfile/javaClasses.hpp" | |
| 27 #include "classfile/systemDictionary.hpp" | |
| 28 #include "gc_implementation/shared/markSweep.inline.hpp" | |
| 29 #include "gc_interface/collectedHeap.inline.hpp" | |
| 30 #include "interpreter/oopMapCache.hpp" | |
| 31 #include "memory/gcLocker.hpp" | |
| 32 #include "oops/constantPoolOop.hpp" | |
| 33 #include "oops/instanceKlass.hpp" | |
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34 #include "oops/instanceMirrorKlass.hpp" |
| 1972 | 35 #include "oops/instanceKlassKlass.hpp" |
| 36 #include "oops/instanceRefKlass.hpp" | |
| 37 #include "oops/objArrayKlassKlass.hpp" | |
| 38 #include "oops/objArrayOop.hpp" | |
| 39 #include "oops/oop.inline.hpp" | |
| 40 #include "oops/oop.inline2.hpp" | |
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41 #include "oops/symbol.hpp" |
| 1972 | 42 #include "oops/typeArrayOop.hpp" |
| 43 #include "prims/jvmtiExport.hpp" | |
| 44 #include "runtime/fieldDescriptor.hpp" | |
| 45 #ifndef SERIALGC | |
| 46 #include "gc_implementation/parNew/parOopClosures.inline.hpp" | |
| 47 #include "gc_implementation/parallelScavenge/psPromotionManager.inline.hpp" | |
| 48 #include "gc_implementation/parallelScavenge/psScavenge.inline.hpp" | |
| 49 #include "memory/cardTableRS.hpp" | |
| 50 #include "oops/oop.pcgc.inline.hpp" | |
| 51 #endif | |
| 0 | 52 |
| 53 klassOop instanceKlassKlass::create_klass(TRAPS) { | |
| 54 instanceKlassKlass o; | |
| 55 KlassHandle h_this_klass(THREAD, Universe::klassKlassObj()); | |
| 56 KlassHandle k = base_create_klass(h_this_klass, header_size(), o.vtbl_value(), CHECK_NULL); | |
| 57 // Make sure size calculation is right | |
| 58 assert(k()->size() == align_object_size(header_size()), "wrong size for object"); | |
| 59 java_lang_Class::create_mirror(k, CHECK_NULL); // Allocate mirror | |
| 60 return k(); | |
| 61 } | |
| 62 | |
| 63 int instanceKlassKlass::oop_size(oop obj) const { | |
| 64 assert(obj->is_klass(), "must be klass"); | |
| 65 return instanceKlass::cast(klassOop(obj))->object_size(); | |
| 66 } | |
| 67 | |
| 68 bool instanceKlassKlass::oop_is_parsable(oop obj) const { | |
| 69 assert(obj->is_klass(), "must be klass"); | |
| 70 instanceKlass* ik = instanceKlass::cast(klassOop(obj)); | |
| 71 return (!ik->null_vtbl()) && ik->object_is_parsable(); | |
| 72 } | |
| 73 | |
| 74 void instanceKlassKlass::iterate_c_heap_oops(instanceKlass* ik, | |
| 75 OopClosure* closure) { | |
| 76 if (ik->oop_map_cache() != NULL) { | |
| 77 ik->oop_map_cache()->oop_iterate(closure); | |
| 78 } | |
| 79 | |
| 80 if (ik->jni_ids() != NULL) { | |
| 81 ik->jni_ids()->oops_do(closure); | |
| 82 } | |
| 83 } | |
| 84 | |
| 85 void instanceKlassKlass::oop_follow_contents(oop obj) { | |
| 86 assert(obj->is_klass(),"must be a klass"); | |
| 87 assert(klassOop(obj)->klass_part()->oop_is_instance_slow(), "must be instance klass"); | |
| 88 | |
| 89 instanceKlass* ik = instanceKlass::cast(klassOop(obj)); | |
| 90 { | |
| 91 HandleMark hm; | |
| 92 ik->vtable()->oop_follow_contents(); | |
| 93 ik->itable()->oop_follow_contents(); | |
| 94 } | |
| 95 | |
| 96 MarkSweep::mark_and_push(ik->adr_array_klasses()); | |
| 97 MarkSweep::mark_and_push(ik->adr_methods()); | |
| 98 MarkSweep::mark_and_push(ik->adr_method_ordering()); | |
| 99 MarkSweep::mark_and_push(ik->adr_local_interfaces()); | |
| 100 MarkSweep::mark_and_push(ik->adr_transitive_interfaces()); | |
| 101 MarkSweep::mark_and_push(ik->adr_fields()); | |
| 102 MarkSweep::mark_and_push(ik->adr_constants()); | |
| 103 MarkSweep::mark_and_push(ik->adr_class_loader()); | |
| 104 MarkSweep::mark_and_push(ik->adr_inner_classes()); | |
| 105 MarkSweep::mark_and_push(ik->adr_protection_domain()); | |
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106 if (ik->adr_host_klass() != NULL) { |
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107 MarkSweep::mark_and_push(ik->adr_host_klass()); |
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108 } |
| 0 | 109 MarkSweep::mark_and_push(ik->adr_signers()); |
| 110 MarkSweep::mark_and_push(ik->adr_class_annotations()); | |
| 111 MarkSweep::mark_and_push(ik->adr_fields_annotations()); | |
| 112 MarkSweep::mark_and_push(ik->adr_methods_annotations()); | |
| 113 MarkSweep::mark_and_push(ik->adr_methods_parameter_annotations()); | |
| 114 MarkSweep::mark_and_push(ik->adr_methods_default_annotations()); | |
| 115 | |
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116 // We do not follow adr_implementor() here. It is followed later |
| 0 | 117 // in instanceKlass::follow_weak_klass_links() |
| 118 | |
| 119 klassKlass::oop_follow_contents(obj); | |
| 120 | |
| 121 iterate_c_heap_oops(ik, &MarkSweep::mark_and_push_closure); | |
| 122 } | |
| 123 | |
| 124 #ifndef SERIALGC | |
| 125 void instanceKlassKlass::oop_follow_contents(ParCompactionManager* cm, | |
| 126 oop obj) { | |
| 127 assert(obj->is_klass(),"must be a klass"); | |
| 128 assert(klassOop(obj)->klass_part()->oop_is_instance_slow(), "must be instance klass"); | |
| 129 | |
| 130 instanceKlass* ik = instanceKlass::cast(klassOop(obj)); | |
| 131 ik->vtable()->oop_follow_contents(cm); | |
| 132 ik->itable()->oop_follow_contents(cm); | |
| 133 | |
| 134 PSParallelCompact::mark_and_push(cm, ik->adr_array_klasses()); | |
| 135 PSParallelCompact::mark_and_push(cm, ik->adr_methods()); | |
| 136 PSParallelCompact::mark_and_push(cm, ik->adr_method_ordering()); | |
| 137 PSParallelCompact::mark_and_push(cm, ik->adr_local_interfaces()); | |
| 138 PSParallelCompact::mark_and_push(cm, ik->adr_transitive_interfaces()); | |
| 139 PSParallelCompact::mark_and_push(cm, ik->adr_fields()); | |
| 140 PSParallelCompact::mark_and_push(cm, ik->adr_constants()); | |
| 141 PSParallelCompact::mark_and_push(cm, ik->adr_class_loader()); | |
| 142 PSParallelCompact::mark_and_push(cm, ik->adr_inner_classes()); | |
| 143 PSParallelCompact::mark_and_push(cm, ik->adr_protection_domain()); | |
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144 if (ik->adr_host_klass() != NULL) { |
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145 PSParallelCompact::mark_and_push(cm, ik->adr_host_klass()); |
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146 } |
| 0 | 147 PSParallelCompact::mark_and_push(cm, ik->adr_signers()); |
| 148 PSParallelCompact::mark_and_push(cm, ik->adr_class_annotations()); | |
| 149 PSParallelCompact::mark_and_push(cm, ik->adr_fields_annotations()); | |
| 150 PSParallelCompact::mark_and_push(cm, ik->adr_methods_annotations()); | |
| 151 PSParallelCompact::mark_and_push(cm, ik->adr_methods_parameter_annotations()); | |
| 152 PSParallelCompact::mark_and_push(cm, ik->adr_methods_default_annotations()); | |
| 153 | |
| 154 // We do not follow adr_implementor() here. It is followed later | |
| 155 // in instanceKlass::follow_weak_klass_links() | |
| 156 | |
| 157 klassKlass::oop_follow_contents(cm, obj); | |
| 158 | |
| 159 PSParallelCompact::MarkAndPushClosure mark_and_push_closure(cm); | |
| 160 iterate_c_heap_oops(ik, &mark_and_push_closure); | |
| 161 } | |
| 162 #endif // SERIALGC | |
| 163 | |
| 164 int instanceKlassKlass::oop_oop_iterate(oop obj, OopClosure* blk) { | |
| 165 assert(obj->is_klass(),"must be a klass"); | |
| 166 assert(klassOop(obj)->klass_part()->oop_is_instance_slow(), "must be instance klass"); | |
| 167 instanceKlass* ik = instanceKlass::cast(klassOop(obj)); | |
| 168 // Get size before changing pointers. | |
| 169 // Don't call size() or oop_size() since that is a virtual call. | |
| 170 int size = ik->object_size(); | |
| 171 | |
| 172 ik->vtable()->oop_oop_iterate(blk); | |
| 173 ik->itable()->oop_oop_iterate(blk); | |
| 174 | |
| 175 blk->do_oop(ik->adr_array_klasses()); | |
| 176 blk->do_oop(ik->adr_methods()); | |
| 177 blk->do_oop(ik->adr_method_ordering()); | |
| 178 blk->do_oop(ik->adr_local_interfaces()); | |
| 179 blk->do_oop(ik->adr_transitive_interfaces()); | |
| 180 blk->do_oop(ik->adr_fields()); | |
| 181 blk->do_oop(ik->adr_constants()); | |
| 182 blk->do_oop(ik->adr_class_loader()); | |
| 183 blk->do_oop(ik->adr_protection_domain()); | |
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184 if (ik->adr_host_klass() != NULL) { |
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185 blk->do_oop(ik->adr_host_klass()); |
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186 } |
| 0 | 187 blk->do_oop(ik->adr_signers()); |
| 188 blk->do_oop(ik->adr_inner_classes()); | |
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189 if (ik->adr_implementor() != NULL) { |
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190 blk->do_oop(ik->adr_implementor()); |
| 0 | 191 } |
| 192 blk->do_oop(ik->adr_class_annotations()); | |
| 193 blk->do_oop(ik->adr_fields_annotations()); | |
| 194 blk->do_oop(ik->adr_methods_annotations()); | |
| 195 blk->do_oop(ik->adr_methods_parameter_annotations()); | |
| 196 blk->do_oop(ik->adr_methods_default_annotations()); | |
| 197 | |
| 198 klassKlass::oop_oop_iterate(obj, blk); | |
| 199 | |
| 200 if(ik->oop_map_cache() != NULL) ik->oop_map_cache()->oop_iterate(blk); | |
| 201 return size; | |
| 202 } | |
| 203 | |
| 204 int instanceKlassKlass::oop_oop_iterate_m(oop obj, OopClosure* blk, | |
| 205 MemRegion mr) { | |
| 206 assert(obj->is_klass(),"must be a klass"); | |
| 207 assert(klassOop(obj)->klass_part()->oop_is_instance_slow(), "must be instance klass"); | |
| 208 instanceKlass* ik = instanceKlass::cast(klassOop(obj)); | |
| 209 // Get size before changing pointers. | |
| 210 // Don't call size() or oop_size() since that is a virtual call. | |
| 211 int size = ik->object_size(); | |
| 212 | |
| 213 ik->vtable()->oop_oop_iterate_m(blk, mr); | |
| 214 ik->itable()->oop_oop_iterate_m(blk, mr); | |
| 215 | |
| 216 oop* adr; | |
| 217 adr = ik->adr_array_klasses(); | |
| 218 if (mr.contains(adr)) blk->do_oop(adr); | |
| 219 adr = ik->adr_methods(); | |
| 220 if (mr.contains(adr)) blk->do_oop(adr); | |
| 221 adr = ik->adr_method_ordering(); | |
| 222 if (mr.contains(adr)) blk->do_oop(adr); | |
| 223 adr = ik->adr_local_interfaces(); | |
| 224 if (mr.contains(adr)) blk->do_oop(adr); | |
| 225 adr = ik->adr_transitive_interfaces(); | |
| 226 if (mr.contains(adr)) blk->do_oop(adr); | |
| 227 adr = ik->adr_fields(); | |
| 228 if (mr.contains(adr)) blk->do_oop(adr); | |
| 229 adr = ik->adr_constants(); | |
| 230 if (mr.contains(adr)) blk->do_oop(adr); | |
| 231 adr = ik->adr_class_loader(); | |
| 232 if (mr.contains(adr)) blk->do_oop(adr); | |
| 233 adr = ik->adr_protection_domain(); | |
| 234 if (mr.contains(adr)) blk->do_oop(adr); | |
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235 adr = ik->adr_host_klass(); |
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236 if (adr != NULL && mr.contains(adr)) blk->do_oop(adr); |
| 0 | 237 adr = ik->adr_signers(); |
| 238 if (mr.contains(adr)) blk->do_oop(adr); | |
| 239 adr = ik->adr_inner_classes(); | |
| 240 if (mr.contains(adr)) blk->do_oop(adr); | |
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241 adr = ik->adr_implementor(); |
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242 if (adr != NULL && mr.contains(adr)) blk->do_oop(adr); |
| 0 | 243 adr = ik->adr_class_annotations(); |
| 244 if (mr.contains(adr)) blk->do_oop(adr); | |
| 245 adr = ik->adr_fields_annotations(); | |
| 246 if (mr.contains(adr)) blk->do_oop(adr); | |
| 247 adr = ik->adr_methods_annotations(); | |
| 248 if (mr.contains(adr)) blk->do_oop(adr); | |
| 249 adr = ik->adr_methods_parameter_annotations(); | |
| 250 if (mr.contains(adr)) blk->do_oop(adr); | |
| 251 adr = ik->adr_methods_default_annotations(); | |
| 252 if (mr.contains(adr)) blk->do_oop(adr); | |
| 253 | |
| 254 klassKlass::oop_oop_iterate_m(obj, blk, mr); | |
| 255 | |
| 256 if(ik->oop_map_cache() != NULL) ik->oop_map_cache()->oop_iterate(blk, mr); | |
| 257 return size; | |
| 258 } | |
| 259 | |
| 260 int instanceKlassKlass::oop_adjust_pointers(oop obj) { | |
| 261 assert(obj->is_klass(),"must be a klass"); | |
| 262 assert(klassOop(obj)->klass_part()->oop_is_instance_slow(), "must be instance klass"); | |
| 263 | |
| 264 instanceKlass* ik = instanceKlass::cast(klassOop(obj)); | |
| 265 ik->vtable()->oop_adjust_pointers(); | |
| 266 ik->itable()->oop_adjust_pointers(); | |
| 267 | |
| 268 MarkSweep::adjust_pointer(ik->adr_array_klasses()); | |
| 269 MarkSweep::adjust_pointer(ik->adr_methods()); | |
| 270 MarkSweep::adjust_pointer(ik->adr_method_ordering()); | |
| 271 MarkSweep::adjust_pointer(ik->adr_local_interfaces()); | |
| 272 MarkSweep::adjust_pointer(ik->adr_transitive_interfaces()); | |
| 273 MarkSweep::adjust_pointer(ik->adr_fields()); | |
| 274 MarkSweep::adjust_pointer(ik->adr_constants()); | |
| 275 MarkSweep::adjust_pointer(ik->adr_class_loader()); | |
| 276 MarkSweep::adjust_pointer(ik->adr_protection_domain()); | |
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277 if (ik->adr_host_klass() != NULL) { |
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278 MarkSweep::adjust_pointer(ik->adr_host_klass()); |
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279 } |
| 0 | 280 MarkSweep::adjust_pointer(ik->adr_signers()); |
| 281 MarkSweep::adjust_pointer(ik->adr_inner_classes()); | |
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282 if (ik->adr_implementor() != NULL) { |
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283 MarkSweep::adjust_pointer(ik->adr_implementor()); |
| 0 | 284 } |
| 285 MarkSweep::adjust_pointer(ik->adr_class_annotations()); | |
| 286 MarkSweep::adjust_pointer(ik->adr_fields_annotations()); | |
| 287 MarkSweep::adjust_pointer(ik->adr_methods_annotations()); | |
| 288 MarkSweep::adjust_pointer(ik->adr_methods_parameter_annotations()); | |
| 289 MarkSweep::adjust_pointer(ik->adr_methods_default_annotations()); | |
| 290 | |
| 291 iterate_c_heap_oops(ik, &MarkSweep::adjust_root_pointer_closure); | |
| 292 | |
| 293 return klassKlass::oop_adjust_pointers(obj); | |
| 294 } | |
| 295 | |
| 296 #ifndef SERIALGC | |
| 297 void instanceKlassKlass::oop_push_contents(PSPromotionManager* pm, oop obj) { | |
| 298 instanceKlass* ik = instanceKlass::cast(klassOop(obj)); | |
| 299 | |
| 300 oop* loader_addr = ik->adr_class_loader(); | |
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301 if (PSScavenge::should_scavenge(loader_addr)) { |
| 0 | 302 pm->claim_or_forward_depth(loader_addr); |
| 303 } | |
| 304 | |
| 305 oop* pd_addr = ik->adr_protection_domain(); | |
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306 if (PSScavenge::should_scavenge(pd_addr)) { |
| 0 | 307 pm->claim_or_forward_depth(pd_addr); |
| 308 } | |
| 309 | |
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310 oop* hk_addr = ik->adr_host_klass(); |
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311 if (hk_addr != NULL && PSScavenge::should_scavenge(hk_addr)) { |
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312 pm->claim_or_forward_depth(hk_addr); |
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313 } |
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314 |
| 0 | 315 oop* sg_addr = ik->adr_signers(); |
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316 if (PSScavenge::should_scavenge(sg_addr)) { |
| 0 | 317 pm->claim_or_forward_depth(sg_addr); |
| 318 } | |
| 319 | |
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320 klassKlass::oop_push_contents(pm, obj); |
| 0 | 321 } |
| 322 | |
| 323 int instanceKlassKlass::oop_update_pointers(ParCompactionManager* cm, oop obj) { | |
| 324 assert(obj->is_klass(),"must be a klass"); | |
| 325 assert(klassOop(obj)->klass_part()->oop_is_instance_slow(), | |
| 326 "must be instance klass"); | |
| 327 | |
| 328 instanceKlass* ik = instanceKlass::cast(klassOop(obj)); | |
| 329 ik->vtable()->oop_update_pointers(cm); | |
| 330 ik->itable()->oop_update_pointers(cm); | |
| 331 | |
| 332 oop* const beg_oop = ik->oop_block_beg(); | |
| 333 oop* const end_oop = ik->oop_block_end(); | |
| 334 for (oop* cur_oop = beg_oop; cur_oop < end_oop; ++cur_oop) { | |
| 335 PSParallelCompact::adjust_pointer(cur_oop); | |
| 336 } | |
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337 // embedded oops |
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338 if (ik->adr_implementor() != NULL) { |
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339 PSParallelCompact::adjust_pointer(ik->adr_implementor()); |
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340 } |
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341 if (ik->adr_host_klass() != NULL) { |
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342 PSParallelCompact::adjust_pointer(ik->adr_host_klass()); |
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343 } |
| 0 | 344 |
| 345 OopClosure* closure = PSParallelCompact::adjust_root_pointer_closure(); | |
| 346 iterate_c_heap_oops(ik, closure); | |
| 347 | |
| 348 klassKlass::oop_update_pointers(cm, obj); | |
| 349 return ik->object_size(); | |
| 350 } | |
| 351 | |
| 352 #endif // SERIALGC | |
| 353 | |
| 938 | 354 klassOop |
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355 instanceKlassKlass::allocate_instance_klass(Symbol* name, int vtable_len, int itable_len, |
| 938 | 356 int static_field_size, |
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357 unsigned nonstatic_oop_map_count, |
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358 AccessFlags access_flags, |
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359 ReferenceType rt, |
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360 KlassHandle host_klass, TRAPS) { |
| 0 | 361 |
| 938 | 362 const int nonstatic_oop_map_size = |
| 363 instanceKlass::nonstatic_oop_map_size(nonstatic_oop_map_count); | |
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364 int size = align_object_offset(vtable_len) + align_object_offset(itable_len); |
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365 if (access_flags.is_interface() || !host_klass.is_null()) { |
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366 size += align_object_offset(nonstatic_oop_map_size); |
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367 } else { |
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368 size += nonstatic_oop_map_size; |
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369 } |
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370 if (access_flags.is_interface()) { |
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371 size += (int)sizeof(klassOop)/HeapWordSize; |
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372 } |
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373 if (!host_klass.is_null()) { |
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374 size += (int)sizeof(klassOop)/HeapWordSize; |
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375 } |
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376 size = instanceKlass::object_size(size); |
| 0 | 377 |
| 378 // Allocation | |
| 379 KlassHandle h_this_klass(THREAD, as_klassOop()); | |
| 380 KlassHandle k; | |
| 381 if (rt == REF_NONE) { | |
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382 if (name != vmSymbols::java_lang_Class()) { |
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383 // regular klass |
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384 instanceKlass o; |
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385 k = base_create_klass(h_this_klass, size, o.vtbl_value(), CHECK_NULL); |
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386 } else { |
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387 // Class |
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388 instanceMirrorKlass o; |
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389 k = base_create_klass(h_this_klass, size, o.vtbl_value(), CHECK_NULL); |
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390 } |
| 0 | 391 } else { |
| 392 // reference klass | |
| 393 instanceRefKlass o; | |
| 394 k = base_create_klass(h_this_klass, size, o.vtbl_value(), CHECK_NULL); | |
| 395 } | |
| 396 { | |
| 397 No_Safepoint_Verifier no_safepoint; // until k becomes parsable | |
| 398 instanceKlass* ik = (instanceKlass*) k()->klass_part(); | |
| 399 assert(!k()->is_parsable(), "not expecting parsability yet."); | |
| 400 | |
| 401 // The sizes of these these three variables are used for determining the | |
| 402 // size of the instanceKlassOop. It is critical that these are set to the right | |
| 403 // sizes before the first GC, i.e., when we allocate the mirror. | |
| 404 ik->set_vtable_length(vtable_len); | |
| 405 ik->set_itable_length(itable_len); | |
| 406 ik->set_static_field_size(static_field_size); | |
| 407 ik->set_nonstatic_oop_map_size(nonstatic_oop_map_size); | |
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408 ik->set_access_flags(access_flags); |
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409 ik->set_is_anonymous(!host_klass.is_null()); |
| 0 | 410 assert(k()->size() == size, "wrong size for object"); |
| 411 | |
| 412 ik->set_array_klasses(NULL); | |
| 413 ik->set_methods(NULL); | |
| 414 ik->set_method_ordering(NULL); | |
| 415 ik->set_local_interfaces(NULL); | |
| 416 ik->set_transitive_interfaces(NULL); | |
| 417 ik->init_implementor(); | |
| 3938 | 418 ik->set_fields(NULL, 0); |
| 0 | 419 ik->set_constants(NULL); |
| 420 ik->set_class_loader(NULL); | |
| 421 ik->set_protection_domain(NULL); | |
| 422 ik->set_signers(NULL); | |
| 423 ik->set_source_file_name(NULL); | |
| 424 ik->set_source_debug_extension(NULL); | |
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425 ik->set_source_debug_extension(NULL); |
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426 ik->set_array_name(NULL); |
| 0 | 427 ik->set_inner_classes(NULL); |
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428 ik->set_static_oop_field_count(0); |
| 0 | 429 ik->set_nonstatic_field_size(0); |
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430 ik->set_is_marked_dependent(false); |
| 0 | 431 ik->set_init_state(instanceKlass::allocated); |
| 432 ik->set_init_thread(NULL); | |
| 433 ik->set_reference_type(rt); | |
| 434 ik->set_oop_map_cache(NULL); | |
| 435 ik->set_jni_ids(NULL); | |
| 436 ik->set_osr_nmethods_head(NULL); | |
| 437 ik->set_breakpoints(NULL); | |
| 438 ik->init_previous_versions(); | |
| 439 ik->set_generic_signature(NULL); | |
| 440 ik->release_set_methods_jmethod_ids(NULL); | |
| 441 ik->release_set_methods_cached_itable_indices(NULL); | |
| 442 ik->set_class_annotations(NULL); | |
| 443 ik->set_fields_annotations(NULL); | |
| 444 ik->set_methods_annotations(NULL); | |
| 445 ik->set_methods_parameter_annotations(NULL); | |
| 446 ik->set_methods_default_annotations(NULL); | |
| 447 ik->set_jvmti_cached_class_field_map(NULL); | |
| 448 ik->set_initial_method_idnum(0); | |
| 449 assert(k()->is_parsable(), "should be parsable here."); | |
| 450 | |
| 451 // initialize the non-header words to zero | |
| 452 intptr_t* p = (intptr_t*)k(); | |
| 453 for (int index = instanceKlass::header_size(); index < size; index++) { | |
| 454 p[index] = NULL_WORD; | |
| 455 } | |
| 456 | |
| 457 // To get verify to work - must be set to partial loaded before first GC point. | |
| 458 k()->set_partially_loaded(); | |
| 459 } | |
| 460 return k(); | |
| 461 } | |
| 462 | |
| 463 | |
| 464 | |
| 465 #ifndef PRODUCT | |
| 466 | |
| 467 // Printing | |
| 468 | |
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469 #define BULLET " - " |
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470 |
| 0 | 471 static const char* state_names[] = { |
| 472 "unparseable_by_gc", "allocated", "loaded", "linked", "being_initialized", "fully_initialized", "initialization_error" | |
| 473 }; | |
| 474 | |
| 475 | |
| 476 void instanceKlassKlass::oop_print_on(oop obj, outputStream* st) { | |
| 477 assert(obj->is_klass(), "must be klass"); | |
| 478 instanceKlass* ik = instanceKlass::cast(klassOop(obj)); | |
| 479 klassKlass::oop_print_on(obj, st); | |
| 480 | |
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481 st->print(BULLET"instance size: %d", ik->size_helper()); st->cr(); |
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482 st->print(BULLET"klass size: %d", ik->object_size()); st->cr(); |
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483 st->print(BULLET"access: "); ik->access_flags().print_on(st); st->cr(); |
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484 st->print(BULLET"state: "); st->print_cr(state_names[ik->_init_state]); |
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485 st->print(BULLET"name: "); ik->name()->print_value_on(st); st->cr(); |
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486 st->print(BULLET"super: "); ik->super()->print_value_on(st); st->cr(); |
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487 st->print(BULLET"sub: "); |
| 0 | 488 Klass* sub = ik->subklass(); |
| 489 int n; | |
| 490 for (n = 0; sub != NULL; n++, sub = sub->next_sibling()) { | |
| 491 if (n < MaxSubklassPrintSize) { | |
| 492 sub->as_klassOop()->print_value_on(st); | |
| 493 st->print(" "); | |
| 494 } | |
| 495 } | |
| 496 if (n >= MaxSubklassPrintSize) st->print("(%d more klasses...)", n - MaxSubklassPrintSize); | |
| 497 st->cr(); | |
| 498 | |
| 499 if (ik->is_interface()) { | |
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500 st->print_cr(BULLET"nof implementors: %d", ik->nof_implementors()); |
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501 if (ik->nof_implementors() == 1) { |
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502 st->print_cr(BULLET"implementor: "); |
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503 st->print(" "); |
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504 ik->implementor()->print_value_on(st); |
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505 st->cr(); |
| 0 | 506 } |
| 507 } | |
| 508 | |
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509 st->print(BULLET"arrays: "); ik->array_klasses()->print_value_on(st); st->cr(); |
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510 st->print(BULLET"methods: "); ik->methods()->print_value_on(st); st->cr(); |
| 0 | 511 if (Verbose) { |
| 512 objArrayOop methods = ik->methods(); | |
| 513 for(int i = 0; i < methods->length(); i++) { | |
| 514 tty->print("%d : ", i); methods->obj_at(i)->print_value(); tty->cr(); | |
| 515 } | |
| 516 } | |
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517 st->print(BULLET"method ordering: "); ik->method_ordering()->print_value_on(st); st->cr(); |
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518 st->print(BULLET"local interfaces: "); ik->local_interfaces()->print_value_on(st); st->cr(); |
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519 st->print(BULLET"trans. interfaces: "); ik->transitive_interfaces()->print_value_on(st); st->cr(); |
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520 st->print(BULLET"constants: "); ik->constants()->print_value_on(st); st->cr(); |
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521 st->print(BULLET"class loader: "); ik->class_loader()->print_value_on(st); st->cr(); |
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522 st->print(BULLET"protection domain: "); ik->protection_domain()->print_value_on(st); st->cr(); |
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523 if (ik->host_klass() != NULL) { |
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524 st->print(BULLET"host class: "); ik->host_klass()->print_value_on(st); st->cr(); |
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525 } |
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526 st->print(BULLET"signers: "); ik->signers()->print_value_on(st); st->cr(); |
| 0 | 527 if (ik->source_file_name() != NULL) { |
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528 st->print(BULLET"source file: "); |
| 0 | 529 ik->source_file_name()->print_value_on(st); |
| 530 st->cr(); | |
| 531 } | |
| 532 if (ik->source_debug_extension() != NULL) { | |
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533 st->print(BULLET"source debug extension: "); |
| 0 | 534 ik->source_debug_extension()->print_value_on(st); |
| 535 st->cr(); | |
| 536 } | |
| 537 | |
| 538 { | |
| 539 ResourceMark rm; | |
| 540 // PreviousVersionInfo objects returned via PreviousVersionWalker | |
| 541 // contain a GrowableArray of handles. We have to clean up the | |
| 542 // GrowableArray _after_ the PreviousVersionWalker destructor | |
| 543 // has destroyed the handles. | |
| 544 { | |
|
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545 bool have_pv = false; |
| 0 | 546 PreviousVersionWalker pvw(ik); |
| 547 for (PreviousVersionInfo * pv_info = pvw.next_previous_version(); | |
| 548 pv_info != NULL; pv_info = pvw.next_previous_version()) { | |
|
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549 if (!have_pv) |
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550 st->print(BULLET"previous version: "); |
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551 have_pv = true; |
| 0 | 552 pv_info->prev_constant_pool_handle()()->print_value_on(st); |
| 553 } | |
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554 if (have_pv) st->cr(); |
| 0 | 555 } // pvw is cleaned up |
| 556 } // rm is cleaned up | |
| 557 | |
| 558 if (ik->generic_signature() != NULL) { | |
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559 st->print(BULLET"generic signature: "); |
| 0 | 560 ik->generic_signature()->print_value_on(st); |
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561 st->cr(); |
| 0 | 562 } |
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563 st->print(BULLET"inner classes: "); ik->inner_classes()->print_value_on(st); st->cr(); |
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564 st->print(BULLET"java mirror: "); ik->java_mirror()->print_value_on(st); st->cr(); |
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565 st->print(BULLET"vtable length %d (start addr: " INTPTR_FORMAT ")", ik->vtable_length(), ik->start_of_vtable()); st->cr(); |
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566 st->print(BULLET"itable length %d (start addr: " INTPTR_FORMAT ")", ik->itable_length(), ik->start_of_itable()); st->cr(); |
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567 st->print_cr(BULLET"---- static fields (%d words):", ik->static_field_size()); |
| 0 | 568 FieldPrinter print_static_field(st); |
| 569 ik->do_local_static_fields(&print_static_field); | |
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570 st->print_cr(BULLET"---- non-static fields (%d words):", ik->nonstatic_field_size()); |
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571 FieldPrinter print_nonstatic_field(st); |
| 0 | 572 ik->do_nonstatic_fields(&print_nonstatic_field); |
| 573 | |
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574 st->print(BULLET"non-static oop maps: "); |
| 0 | 575 OopMapBlock* map = ik->start_of_nonstatic_oop_maps(); |
| 938 | 576 OopMapBlock* end_map = map + ik->nonstatic_oop_map_count(); |
| 0 | 577 while (map < end_map) { |
| 938 | 578 st->print("%d-%d ", map->offset(), map->offset() + heapOopSize*(map->count() - 1)); |
| 0 | 579 map++; |
| 580 } | |
| 581 st->cr(); | |
| 582 } | |
| 583 | |
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584 #endif //PRODUCT |
| 0 | 585 |
| 586 void instanceKlassKlass::oop_print_value_on(oop obj, outputStream* st) { | |
| 587 assert(obj->is_klass(), "must be klass"); | |
| 588 instanceKlass* ik = instanceKlass::cast(klassOop(obj)); | |
| 589 ik->name()->print_value_on(st); | |
| 590 } | |
| 591 | |
| 592 const char* instanceKlassKlass::internal_name() const { | |
| 593 return "{instance class}"; | |
| 594 } | |
| 595 | |
| 596 // Verification | |
| 597 | |
| 598 class VerifyFieldClosure: public OopClosure { | |
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599 protected: |
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600 template <class T> void do_oop_work(T* p) { |
| 0 | 601 guarantee(Universe::heap()->is_in(p), "should be in heap"); |
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602 oop obj = oopDesc::load_decode_heap_oop(p); |
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603 guarantee(obj->is_oop_or_null(), "should be in heap"); |
| 0 | 604 } |
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605 public: |
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606 virtual void do_oop(oop* p) { VerifyFieldClosure::do_oop_work(p); } |
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607 virtual void do_oop(narrowOop* p) { VerifyFieldClosure::do_oop_work(p); } |
| 0 | 608 }; |
| 609 | |
| 610 void instanceKlassKlass::oop_verify_on(oop obj, outputStream* st) { | |
| 611 klassKlass::oop_verify_on(obj, st); | |
| 612 if (!obj->partially_loaded()) { | |
| 613 Thread *thread = Thread::current(); | |
| 614 instanceKlass* ik = instanceKlass::cast(klassOop(obj)); | |
| 615 | |
| 616 #ifndef PRODUCT | |
| 617 // Avoid redundant verifies | |
| 618 if (ik->_verify_count == Universe::verify_count()) return; | |
| 619 ik->_verify_count = Universe::verify_count(); | |
| 620 #endif | |
| 621 // Verify that klass is present in SystemDictionary | |
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622 if (ik->is_loaded() && !ik->is_anonymous()) { |
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623 Symbol* h_name = ik->name(); |
| 0 | 624 Handle h_loader (thread, ik->class_loader()); |
| 625 Handle h_obj(thread, obj); | |
| 626 SystemDictionary::verify_obj_klass_present(h_obj, h_name, h_loader); | |
| 627 } | |
| 628 | |
| 629 // Verify static fields | |
| 630 VerifyFieldClosure blk; | |
| 631 | |
| 632 // Verify vtables | |
| 633 if (ik->is_linked()) { | |
| 634 ResourceMark rm(thread); | |
| 635 // $$$ This used to be done only for m/s collections. Doing it | |
| 636 // always seemed a valid generalization. (DLD -- 6/00) | |
| 637 ik->vtable()->verify(st); | |
| 638 } | |
| 639 | |
| 640 // Verify oop map cache | |
| 641 if (ik->oop_map_cache() != NULL) { | |
| 642 ik->oop_map_cache()->verify(); | |
| 643 } | |
| 644 | |
| 645 // Verify first subklass | |
| 646 if (ik->subklass_oop() != NULL) { | |
| 647 guarantee(ik->subklass_oop()->is_perm(), "should be in permspace"); | |
| 648 guarantee(ik->subklass_oop()->is_klass(), "should be klass"); | |
| 649 } | |
| 650 | |
| 651 // Verify siblings | |
| 652 klassOop super = ik->super(); | |
| 653 Klass* sib = ik->next_sibling(); | |
| 654 int sib_count = 0; | |
| 655 while (sib != NULL) { | |
| 656 if (sib == ik) { | |
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657 fatal(err_msg("subclass cycle of length %d", sib_count)); |
| 0 | 658 } |
| 659 if (sib_count >= 100000) { | |
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660 fatal(err_msg("suspiciously long subclass list %d", sib_count)); |
| 0 | 661 } |
| 662 guarantee(sib->as_klassOop()->is_klass(), "should be klass"); | |
| 663 guarantee(sib->as_klassOop()->is_perm(), "should be in permspace"); | |
| 664 guarantee(sib->super() == super, "siblings should have same superklass"); | |
| 665 sib = sib->next_sibling(); | |
| 666 } | |
| 667 | |
| 668 // Verify implementor fields | |
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669 klassOop im = ik->implementor(); |
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670 if (im != NULL) { |
| 0 | 671 guarantee(ik->is_interface(), "only interfaces should have implementor set"); |
| 672 guarantee(im->is_perm(), "should be in permspace"); | |
| 673 guarantee(im->is_klass(), "should be klass"); | |
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674 guarantee(!Klass::cast(klassOop(im))->is_interface() || im == ik->as_klassOop(), "implementors cannot be interfaces"); |
| 0 | 675 } |
| 676 | |
| 677 // Verify local interfaces | |
| 678 objArrayOop local_interfaces = ik->local_interfaces(); | |
| 679 guarantee(local_interfaces->is_perm(), "should be in permspace"); | |
| 680 guarantee(local_interfaces->is_objArray(), "should be obj array"); | |
| 681 int j; | |
| 682 for (j = 0; j < local_interfaces->length(); j++) { | |
| 683 oop e = local_interfaces->obj_at(j); | |
| 684 guarantee(e->is_klass() && Klass::cast(klassOop(e))->is_interface(), "invalid local interface"); | |
| 685 } | |
| 686 | |
| 687 // Verify transitive interfaces | |
| 688 objArrayOop transitive_interfaces = ik->transitive_interfaces(); | |
| 689 guarantee(transitive_interfaces->is_perm(), "should be in permspace"); | |
| 690 guarantee(transitive_interfaces->is_objArray(), "should be obj array"); | |
| 691 for (j = 0; j < transitive_interfaces->length(); j++) { | |
| 692 oop e = transitive_interfaces->obj_at(j); | |
| 693 guarantee(e->is_klass() && Klass::cast(klassOop(e))->is_interface(), "invalid transitive interface"); | |
| 694 } | |
| 695 | |
| 696 // Verify methods | |
| 697 objArrayOop methods = ik->methods(); | |
| 698 guarantee(methods->is_perm(), "should be in permspace"); | |
| 699 guarantee(methods->is_objArray(), "should be obj array"); | |
| 700 for (j = 0; j < methods->length(); j++) { | |
| 701 guarantee(methods->obj_at(j)->is_method(), "non-method in methods array"); | |
| 702 } | |
| 703 for (j = 0; j < methods->length() - 1; j++) { | |
| 704 methodOop m1 = methodOop(methods->obj_at(j)); | |
| 705 methodOop m2 = methodOop(methods->obj_at(j + 1)); | |
| 706 guarantee(m1->name()->fast_compare(m2->name()) <= 0, "methods not sorted correctly"); | |
| 707 } | |
| 708 | |
| 709 // Verify method ordering | |
| 710 typeArrayOop method_ordering = ik->method_ordering(); | |
| 711 guarantee(method_ordering->is_perm(), "should be in permspace"); | |
| 712 guarantee(method_ordering->is_typeArray(), "should be type array"); | |
| 713 int length = method_ordering->length(); | |
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714 if (JvmtiExport::can_maintain_original_method_order() || |
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715 (UseSharedSpaces && length != 0)) { |
| 0 | 716 guarantee(length == methods->length(), "invalid method ordering length"); |
| 717 jlong sum = 0; | |
| 718 for (j = 0; j < length; j++) { | |
| 719 int original_index = method_ordering->int_at(j); | |
| 720 guarantee(original_index >= 0 && original_index < length, "invalid method ordering index"); | |
| 721 sum += original_index; | |
| 722 } | |
| 723 // Verify sum of indices 0,1,...,length-1 | |
| 724 guarantee(sum == ((jlong)length*(length-1))/2, "invalid method ordering sum"); | |
| 725 } else { | |
| 726 guarantee(length == 0, "invalid method ordering length"); | |
| 727 } | |
| 728 | |
| 729 // Verify JNI static field identifiers | |
| 730 if (ik->jni_ids() != NULL) { | |
| 731 ik->jni_ids()->verify(ik->as_klassOop()); | |
| 732 } | |
| 733 | |
| 734 // Verify other fields | |
| 735 if (ik->array_klasses() != NULL) { | |
| 736 guarantee(ik->array_klasses()->is_perm(), "should be in permspace"); | |
| 737 guarantee(ik->array_klasses()->is_klass(), "should be klass"); | |
| 738 } | |
| 739 guarantee(ik->fields()->is_perm(), "should be in permspace"); | |
| 740 guarantee(ik->fields()->is_typeArray(), "should be type array"); | |
| 741 guarantee(ik->constants()->is_perm(), "should be in permspace"); | |
| 742 guarantee(ik->constants()->is_constantPool(), "should be constant pool"); | |
| 743 guarantee(ik->inner_classes()->is_perm(), "should be in permspace"); | |
| 744 guarantee(ik->inner_classes()->is_typeArray(), "should be type array"); | |
| 745 if (ik->protection_domain() != NULL) { | |
| 746 guarantee(ik->protection_domain()->is_oop(), "should be oop"); | |
| 747 } | |
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748 if (ik->host_klass() != NULL) { |
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749 guarantee(ik->host_klass()->is_oop(), "should be oop"); |
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750 } |
| 0 | 751 if (ik->signers() != NULL) { |
| 752 guarantee(ik->signers()->is_objArray(), "should be obj array"); | |
| 753 } | |
| 754 if (ik->class_annotations() != NULL) { | |
| 755 guarantee(ik->class_annotations()->is_typeArray(), "should be type array"); | |
| 756 } | |
| 757 if (ik->fields_annotations() != NULL) { | |
| 758 guarantee(ik->fields_annotations()->is_objArray(), "should be obj array"); | |
| 759 } | |
| 760 if (ik->methods_annotations() != NULL) { | |
| 761 guarantee(ik->methods_annotations()->is_objArray(), "should be obj array"); | |
| 762 } | |
| 763 if (ik->methods_parameter_annotations() != NULL) { | |
| 764 guarantee(ik->methods_parameter_annotations()->is_objArray(), "should be obj array"); | |
| 765 } | |
| 766 if (ik->methods_default_annotations() != NULL) { | |
| 767 guarantee(ik->methods_default_annotations()->is_objArray(), "should be obj array"); | |
| 768 } | |
| 769 } | |
| 770 } | |
| 771 | |
| 772 | |
| 773 bool instanceKlassKlass::oop_partially_loaded(oop obj) const { | |
| 774 assert(obj->is_klass(), "object must be klass"); | |
| 775 instanceKlass* ik = instanceKlass::cast(klassOop(obj)); | |
| 776 assert(ik->oop_is_instance(), "object must be instanceKlass"); | |
| 777 return ik->transitive_interfaces() == (objArrayOop) obj; // Check whether transitive_interfaces points to self | |
| 778 } | |
| 779 | |
| 780 | |
| 781 // The transitive_interfaces is the last field set when loading an object. | |
| 782 void instanceKlassKlass::oop_set_partially_loaded(oop obj) { | |
| 783 assert(obj->is_klass(), "object must be klass"); | |
| 784 instanceKlass* ik = instanceKlass::cast(klassOop(obj)); | |
| 785 // Set the layout helper to a place-holder value, until fuller initialization. | |
| 786 // (This allows asserts in oop_is_instance to succeed.) | |
| 787 ik->set_layout_helper(Klass::instance_layout_helper(0, true)); | |
| 788 assert(ik->oop_is_instance(), "object must be instanceKlass"); | |
| 789 assert(ik->transitive_interfaces() == NULL, "just checking"); | |
| 790 ik->set_transitive_interfaces((objArrayOop) obj); // Temporarily set transitive_interfaces to point to self | |
| 791 } |