Mercurial > hg > truffle
annotate src/share/vm/oops/instanceKlassKlass.cpp @ 1972:f95d63e2154a
6989984: Use standard include model for Hospot
Summary: Replaced MakeDeps and the includeDB files with more standardized solutions.
Reviewed-by: coleenp, kvn, kamg
| author | stefank |
|---|---|
| date | Tue, 23 Nov 2010 13:22:55 -0800 |
| parents | 9d7a8ab3736b |
| children | 3582bf76420e |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 1972 | 2 * Copyright (c) 1997, 2010, 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" | |
| 34 #include "oops/instanceKlassKlass.hpp" | |
| 35 #include "oops/instanceRefKlass.hpp" | |
| 36 #include "oops/objArrayKlassKlass.hpp" | |
| 37 #include "oops/objArrayOop.hpp" | |
| 38 #include "oops/oop.inline.hpp" | |
| 39 #include "oops/oop.inline2.hpp" | |
| 40 #include "oops/symbolOop.hpp" | |
| 41 #include "oops/typeArrayOop.hpp" | |
| 42 #include "prims/jvmtiExport.hpp" | |
| 43 #include "runtime/fieldDescriptor.hpp" | |
| 44 #ifndef SERIALGC | |
| 45 #include "gc_implementation/parNew/parOopClosures.inline.hpp" | |
| 46 #include "gc_implementation/parallelScavenge/psPromotionManager.inline.hpp" | |
| 47 #include "gc_implementation/parallelScavenge/psScavenge.inline.hpp" | |
| 48 #include "memory/cardTableRS.hpp" | |
| 49 #include "oops/oop.pcgc.inline.hpp" | |
| 50 #endif | |
| 0 | 51 |
| 52 klassOop instanceKlassKlass::create_klass(TRAPS) { | |
| 53 instanceKlassKlass o; | |
| 54 KlassHandle h_this_klass(THREAD, Universe::klassKlassObj()); | |
| 55 KlassHandle k = base_create_klass(h_this_klass, header_size(), o.vtbl_value(), CHECK_NULL); | |
| 56 // Make sure size calculation is right | |
| 57 assert(k()->size() == align_object_size(header_size()), "wrong size for object"); | |
| 58 java_lang_Class::create_mirror(k, CHECK_NULL); // Allocate mirror | |
| 59 return k(); | |
| 60 } | |
| 61 | |
| 62 int instanceKlassKlass::oop_size(oop obj) const { | |
| 63 assert(obj->is_klass(), "must be klass"); | |
| 64 return instanceKlass::cast(klassOop(obj))->object_size(); | |
| 65 } | |
| 66 | |
| 67 bool instanceKlassKlass::oop_is_parsable(oop obj) const { | |
| 68 assert(obj->is_klass(), "must be klass"); | |
| 69 instanceKlass* ik = instanceKlass::cast(klassOop(obj)); | |
| 70 return (!ik->null_vtbl()) && ik->object_is_parsable(); | |
| 71 } | |
| 72 | |
| 73 void instanceKlassKlass::iterate_c_heap_oops(instanceKlass* ik, | |
| 74 OopClosure* closure) { | |
| 75 if (ik->oop_map_cache() != NULL) { | |
| 76 ik->oop_map_cache()->oop_iterate(closure); | |
| 77 } | |
| 78 | |
| 79 if (ik->jni_ids() != NULL) { | |
| 80 ik->jni_ids()->oops_do(closure); | |
| 81 } | |
| 82 } | |
| 83 | |
| 84 void instanceKlassKlass::oop_follow_contents(oop obj) { | |
| 85 assert(obj->is_klass(),"must be a klass"); | |
| 86 assert(klassOop(obj)->klass_part()->oop_is_instance_slow(), "must be instance klass"); | |
| 87 | |
| 88 instanceKlass* ik = instanceKlass::cast(klassOop(obj)); | |
| 89 ik->follow_static_fields(); | |
| 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_source_file_name()); | |
| 105 MarkSweep::mark_and_push(ik->adr_source_debug_extension()); | |
| 106 MarkSweep::mark_and_push(ik->adr_inner_classes()); | |
| 107 MarkSweep::mark_and_push(ik->adr_protection_domain()); | |
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108 MarkSweep::mark_and_push(ik->adr_host_klass()); |
| 0 | 109 MarkSweep::mark_and_push(ik->adr_signers()); |
| 110 MarkSweep::mark_and_push(ik->adr_generic_signature()); | |
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111 MarkSweep::mark_and_push(ik->adr_bootstrap_method()); |
| 0 | 112 MarkSweep::mark_and_push(ik->adr_class_annotations()); |
| 113 MarkSweep::mark_and_push(ik->adr_fields_annotations()); | |
| 114 MarkSweep::mark_and_push(ik->adr_methods_annotations()); | |
| 115 MarkSweep::mark_and_push(ik->adr_methods_parameter_annotations()); | |
| 116 MarkSweep::mark_and_push(ik->adr_methods_default_annotations()); | |
| 117 | |
| 118 // We do not follow adr_implementors() here. It is followed later | |
| 119 // in instanceKlass::follow_weak_klass_links() | |
| 120 | |
| 121 klassKlass::oop_follow_contents(obj); | |
| 122 | |
| 123 iterate_c_heap_oops(ik, &MarkSweep::mark_and_push_closure); | |
| 124 } | |
| 125 | |
| 126 #ifndef SERIALGC | |
| 127 void instanceKlassKlass::oop_follow_contents(ParCompactionManager* cm, | |
| 128 oop obj) { | |
| 129 assert(obj->is_klass(),"must be a klass"); | |
| 130 assert(klassOop(obj)->klass_part()->oop_is_instance_slow(), "must be instance klass"); | |
| 131 | |
| 132 instanceKlass* ik = instanceKlass::cast(klassOop(obj)); | |
| 133 ik->follow_static_fields(cm); | |
| 134 ik->vtable()->oop_follow_contents(cm); | |
| 135 ik->itable()->oop_follow_contents(cm); | |
| 136 | |
| 137 PSParallelCompact::mark_and_push(cm, ik->adr_array_klasses()); | |
| 138 PSParallelCompact::mark_and_push(cm, ik->adr_methods()); | |
| 139 PSParallelCompact::mark_and_push(cm, ik->adr_method_ordering()); | |
| 140 PSParallelCompact::mark_and_push(cm, ik->adr_local_interfaces()); | |
| 141 PSParallelCompact::mark_and_push(cm, ik->adr_transitive_interfaces()); | |
| 142 PSParallelCompact::mark_and_push(cm, ik->adr_fields()); | |
| 143 PSParallelCompact::mark_and_push(cm, ik->adr_constants()); | |
| 144 PSParallelCompact::mark_and_push(cm, ik->adr_class_loader()); | |
| 145 PSParallelCompact::mark_and_push(cm, ik->adr_source_file_name()); | |
| 146 PSParallelCompact::mark_and_push(cm, ik->adr_source_debug_extension()); | |
| 147 PSParallelCompact::mark_and_push(cm, ik->adr_inner_classes()); | |
| 148 PSParallelCompact::mark_and_push(cm, ik->adr_protection_domain()); | |
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149 PSParallelCompact::mark_and_push(cm, ik->adr_host_klass()); |
| 0 | 150 PSParallelCompact::mark_and_push(cm, ik->adr_signers()); |
| 151 PSParallelCompact::mark_and_push(cm, ik->adr_generic_signature()); | |
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152 PSParallelCompact::mark_and_push(cm, ik->adr_bootstrap_method()); |
| 0 | 153 PSParallelCompact::mark_and_push(cm, ik->adr_class_annotations()); |
| 154 PSParallelCompact::mark_and_push(cm, ik->adr_fields_annotations()); | |
| 155 PSParallelCompact::mark_and_push(cm, ik->adr_methods_annotations()); | |
| 156 PSParallelCompact::mark_and_push(cm, ik->adr_methods_parameter_annotations()); | |
| 157 PSParallelCompact::mark_and_push(cm, ik->adr_methods_default_annotations()); | |
| 158 | |
| 159 // We do not follow adr_implementor() here. It is followed later | |
| 160 // in instanceKlass::follow_weak_klass_links() | |
| 161 | |
| 162 klassKlass::oop_follow_contents(cm, obj); | |
| 163 | |
| 164 PSParallelCompact::MarkAndPushClosure mark_and_push_closure(cm); | |
| 165 iterate_c_heap_oops(ik, &mark_and_push_closure); | |
| 166 } | |
| 167 #endif // SERIALGC | |
| 168 | |
| 169 int instanceKlassKlass::oop_oop_iterate(oop obj, OopClosure* blk) { | |
| 170 assert(obj->is_klass(),"must be a klass"); | |
| 171 assert(klassOop(obj)->klass_part()->oop_is_instance_slow(), "must be instance klass"); | |
| 172 instanceKlass* ik = instanceKlass::cast(klassOop(obj)); | |
| 173 // Get size before changing pointers. | |
| 174 // Don't call size() or oop_size() since that is a virtual call. | |
| 175 int size = ik->object_size(); | |
| 176 | |
| 177 ik->iterate_static_fields(blk); | |
| 178 ik->vtable()->oop_oop_iterate(blk); | |
| 179 ik->itable()->oop_oop_iterate(blk); | |
| 180 | |
| 181 blk->do_oop(ik->adr_array_klasses()); | |
| 182 blk->do_oop(ik->adr_methods()); | |
| 183 blk->do_oop(ik->adr_method_ordering()); | |
| 184 blk->do_oop(ik->adr_local_interfaces()); | |
| 185 blk->do_oop(ik->adr_transitive_interfaces()); | |
| 186 blk->do_oop(ik->adr_fields()); | |
| 187 blk->do_oop(ik->adr_constants()); | |
| 188 blk->do_oop(ik->adr_class_loader()); | |
| 189 blk->do_oop(ik->adr_protection_domain()); | |
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190 blk->do_oop(ik->adr_host_klass()); |
| 0 | 191 blk->do_oop(ik->adr_signers()); |
| 192 blk->do_oop(ik->adr_source_file_name()); | |
| 193 blk->do_oop(ik->adr_source_debug_extension()); | |
| 194 blk->do_oop(ik->adr_inner_classes()); | |
| 195 for (int i = 0; i < instanceKlass::implementors_limit; i++) { | |
| 196 blk->do_oop(&ik->adr_implementors()[i]); | |
| 197 } | |
| 198 blk->do_oop(ik->adr_generic_signature()); | |
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199 blk->do_oop(ik->adr_bootstrap_method()); |
| 0 | 200 blk->do_oop(ik->adr_class_annotations()); |
| 201 blk->do_oop(ik->adr_fields_annotations()); | |
| 202 blk->do_oop(ik->adr_methods_annotations()); | |
| 203 blk->do_oop(ik->adr_methods_parameter_annotations()); | |
| 204 blk->do_oop(ik->adr_methods_default_annotations()); | |
| 205 | |
| 206 klassKlass::oop_oop_iterate(obj, blk); | |
| 207 | |
| 208 if(ik->oop_map_cache() != NULL) ik->oop_map_cache()->oop_iterate(blk); | |
| 209 return size; | |
| 210 } | |
| 211 | |
| 212 int instanceKlassKlass::oop_oop_iterate_m(oop obj, OopClosure* blk, | |
| 213 MemRegion mr) { | |
| 214 assert(obj->is_klass(),"must be a klass"); | |
| 215 assert(klassOop(obj)->klass_part()->oop_is_instance_slow(), "must be instance klass"); | |
| 216 instanceKlass* ik = instanceKlass::cast(klassOop(obj)); | |
| 217 // Get size before changing pointers. | |
| 218 // Don't call size() or oop_size() since that is a virtual call. | |
| 219 int size = ik->object_size(); | |
| 220 | |
| 221 ik->iterate_static_fields(blk, mr); | |
| 222 ik->vtable()->oop_oop_iterate_m(blk, mr); | |
| 223 ik->itable()->oop_oop_iterate_m(blk, mr); | |
| 224 | |
| 225 oop* adr; | |
| 226 adr = ik->adr_array_klasses(); | |
| 227 if (mr.contains(adr)) blk->do_oop(adr); | |
| 228 adr = ik->adr_methods(); | |
| 229 if (mr.contains(adr)) blk->do_oop(adr); | |
| 230 adr = ik->adr_method_ordering(); | |
| 231 if (mr.contains(adr)) blk->do_oop(adr); | |
| 232 adr = ik->adr_local_interfaces(); | |
| 233 if (mr.contains(adr)) blk->do_oop(adr); | |
| 234 adr = ik->adr_transitive_interfaces(); | |
| 235 if (mr.contains(adr)) blk->do_oop(adr); | |
| 236 adr = ik->adr_fields(); | |
| 237 if (mr.contains(adr)) blk->do_oop(adr); | |
| 238 adr = ik->adr_constants(); | |
| 239 if (mr.contains(adr)) blk->do_oop(adr); | |
| 240 adr = ik->adr_class_loader(); | |
| 241 if (mr.contains(adr)) blk->do_oop(adr); | |
| 242 adr = ik->adr_protection_domain(); | |
| 243 if (mr.contains(adr)) blk->do_oop(adr); | |
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244 adr = ik->adr_host_klass(); |
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245 if (mr.contains(adr)) blk->do_oop(adr); |
| 0 | 246 adr = ik->adr_signers(); |
| 247 if (mr.contains(adr)) blk->do_oop(adr); | |
| 248 adr = ik->adr_source_file_name(); | |
| 249 if (mr.contains(adr)) blk->do_oop(adr); | |
| 250 adr = ik->adr_source_debug_extension(); | |
| 251 if (mr.contains(adr)) blk->do_oop(adr); | |
| 252 adr = ik->adr_inner_classes(); | |
| 253 if (mr.contains(adr)) blk->do_oop(adr); | |
| 254 adr = ik->adr_implementors(); | |
| 255 for (int i = 0; i < instanceKlass::implementors_limit; i++) { | |
| 256 if (mr.contains(&adr[i])) blk->do_oop(&adr[i]); | |
| 257 } | |
| 258 adr = ik->adr_generic_signature(); | |
| 259 if (mr.contains(adr)) blk->do_oop(adr); | |
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260 adr = ik->adr_bootstrap_method(); |
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261 if (mr.contains(adr)) blk->do_oop(adr); |
| 0 | 262 adr = ik->adr_class_annotations(); |
| 263 if (mr.contains(adr)) blk->do_oop(adr); | |
| 264 adr = ik->adr_fields_annotations(); | |
| 265 if (mr.contains(adr)) blk->do_oop(adr); | |
| 266 adr = ik->adr_methods_annotations(); | |
| 267 if (mr.contains(adr)) blk->do_oop(adr); | |
| 268 adr = ik->adr_methods_parameter_annotations(); | |
| 269 if (mr.contains(adr)) blk->do_oop(adr); | |
| 270 adr = ik->adr_methods_default_annotations(); | |
| 271 if (mr.contains(adr)) blk->do_oop(adr); | |
| 272 | |
| 273 klassKlass::oop_oop_iterate_m(obj, blk, mr); | |
| 274 | |
| 275 if(ik->oop_map_cache() != NULL) ik->oop_map_cache()->oop_iterate(blk, mr); | |
| 276 return size; | |
| 277 } | |
| 278 | |
| 279 int instanceKlassKlass::oop_adjust_pointers(oop obj) { | |
| 280 assert(obj->is_klass(),"must be a klass"); | |
| 281 assert(klassOop(obj)->klass_part()->oop_is_instance_slow(), "must be instance klass"); | |
| 282 | |
| 283 instanceKlass* ik = instanceKlass::cast(klassOop(obj)); | |
| 284 ik->adjust_static_fields(); | |
| 285 ik->vtable()->oop_adjust_pointers(); | |
| 286 ik->itable()->oop_adjust_pointers(); | |
| 287 | |
| 288 MarkSweep::adjust_pointer(ik->adr_array_klasses()); | |
| 289 MarkSweep::adjust_pointer(ik->adr_methods()); | |
| 290 MarkSweep::adjust_pointer(ik->adr_method_ordering()); | |
| 291 MarkSweep::adjust_pointer(ik->adr_local_interfaces()); | |
| 292 MarkSweep::adjust_pointer(ik->adr_transitive_interfaces()); | |
| 293 MarkSweep::adjust_pointer(ik->adr_fields()); | |
| 294 MarkSweep::adjust_pointer(ik->adr_constants()); | |
| 295 MarkSweep::adjust_pointer(ik->adr_class_loader()); | |
| 296 MarkSweep::adjust_pointer(ik->adr_protection_domain()); | |
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297 MarkSweep::adjust_pointer(ik->adr_host_klass()); |
| 0 | 298 MarkSweep::adjust_pointer(ik->adr_signers()); |
| 299 MarkSweep::adjust_pointer(ik->adr_source_file_name()); | |
| 300 MarkSweep::adjust_pointer(ik->adr_source_debug_extension()); | |
| 301 MarkSweep::adjust_pointer(ik->adr_inner_classes()); | |
| 302 for (int i = 0; i < instanceKlass::implementors_limit; i++) { | |
| 303 MarkSweep::adjust_pointer(&ik->adr_implementors()[i]); | |
| 304 } | |
| 305 MarkSweep::adjust_pointer(ik->adr_generic_signature()); | |
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306 MarkSweep::adjust_pointer(ik->adr_bootstrap_method()); |
| 0 | 307 MarkSweep::adjust_pointer(ik->adr_class_annotations()); |
| 308 MarkSweep::adjust_pointer(ik->adr_fields_annotations()); | |
| 309 MarkSweep::adjust_pointer(ik->adr_methods_annotations()); | |
| 310 MarkSweep::adjust_pointer(ik->adr_methods_parameter_annotations()); | |
| 311 MarkSweep::adjust_pointer(ik->adr_methods_default_annotations()); | |
| 312 | |
| 313 iterate_c_heap_oops(ik, &MarkSweep::adjust_root_pointer_closure); | |
| 314 | |
| 315 return klassKlass::oop_adjust_pointers(obj); | |
| 316 } | |
| 317 | |
| 318 #ifndef SERIALGC | |
| 319 void instanceKlassKlass::oop_push_contents(PSPromotionManager* pm, oop obj) { | |
| 320 instanceKlass* ik = instanceKlass::cast(klassOop(obj)); | |
| 321 ik->push_static_fields(pm); | |
| 322 | |
| 323 oop* loader_addr = ik->adr_class_loader(); | |
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324 if (PSScavenge::should_scavenge(loader_addr)) { |
| 0 | 325 pm->claim_or_forward_depth(loader_addr); |
| 326 } | |
| 327 | |
| 328 oop* pd_addr = ik->adr_protection_domain(); | |
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329 if (PSScavenge::should_scavenge(pd_addr)) { |
| 0 | 330 pm->claim_or_forward_depth(pd_addr); |
| 331 } | |
| 332 | |
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333 oop* hk_addr = ik->adr_host_klass(); |
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334 if (PSScavenge::should_scavenge(hk_addr)) { |
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335 pm->claim_or_forward_depth(hk_addr); |
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336 } |
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337 |
| 0 | 338 oop* sg_addr = ik->adr_signers(); |
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339 if (PSScavenge::should_scavenge(sg_addr)) { |
| 0 | 340 pm->claim_or_forward_depth(sg_addr); |
| 341 } | |
| 342 | |
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343 oop* bsm_addr = ik->adr_bootstrap_method(); |
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344 if (PSScavenge::should_scavenge(bsm_addr)) { |
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345 pm->claim_or_forward_depth(bsm_addr); |
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346 } |
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347 |
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348 klassKlass::oop_push_contents(pm, obj); |
| 0 | 349 } |
| 350 | |
| 351 int instanceKlassKlass::oop_update_pointers(ParCompactionManager* cm, oop obj) { | |
| 352 assert(obj->is_klass(),"must be a klass"); | |
| 353 assert(klassOop(obj)->klass_part()->oop_is_instance_slow(), | |
| 354 "must be instance klass"); | |
| 355 | |
| 356 instanceKlass* ik = instanceKlass::cast(klassOop(obj)); | |
| 357 ik->update_static_fields(); | |
| 358 ik->vtable()->oop_update_pointers(cm); | |
| 359 ik->itable()->oop_update_pointers(cm); | |
| 360 | |
| 361 oop* const beg_oop = ik->oop_block_beg(); | |
| 362 oop* const end_oop = ik->oop_block_end(); | |
| 363 for (oop* cur_oop = beg_oop; cur_oop < end_oop; ++cur_oop) { | |
| 364 PSParallelCompact::adjust_pointer(cur_oop); | |
| 365 } | |
| 366 | |
| 367 OopClosure* closure = PSParallelCompact::adjust_root_pointer_closure(); | |
| 368 iterate_c_heap_oops(ik, closure); | |
| 369 | |
| 370 klassKlass::oop_update_pointers(cm, obj); | |
| 371 return ik->object_size(); | |
| 372 } | |
| 373 | |
| 374 int instanceKlassKlass::oop_update_pointers(ParCompactionManager* cm, oop obj, | |
| 375 HeapWord* beg_addr, | |
| 376 HeapWord* end_addr) { | |
| 377 assert(obj->is_klass(),"must be a klass"); | |
| 378 assert(klassOop(obj)->klass_part()->oop_is_instance_slow(), | |
| 379 "must be instance klass"); | |
| 380 | |
| 381 instanceKlass* ik = instanceKlass::cast(klassOop(obj)); | |
| 382 ik->update_static_fields(beg_addr, end_addr); | |
| 383 ik->vtable()->oop_update_pointers(cm, beg_addr, end_addr); | |
| 384 ik->itable()->oop_update_pointers(cm, beg_addr, end_addr); | |
| 385 | |
| 386 oop* const beg_oop = MAX2((oop*)beg_addr, ik->oop_block_beg()); | |
| 387 oop* const end_oop = MIN2((oop*)end_addr, ik->oop_block_end()); | |
| 388 for (oop* cur_oop = beg_oop; cur_oop < end_oop; ++cur_oop) { | |
| 389 PSParallelCompact::adjust_pointer(cur_oop); | |
| 390 } | |
| 391 | |
| 392 // The oop_map_cache, jni_ids and jni_id_map are allocated from the C heap, | |
| 393 // and so don't lie within any 'Chunk' boundaries. Update them when the | |
| 394 // lowest addressed oop in the instanceKlass 'oop_block' is updated. | |
| 395 if (beg_oop == ik->oop_block_beg()) { | |
| 396 OopClosure* closure = PSParallelCompact::adjust_root_pointer_closure(); | |
| 397 iterate_c_heap_oops(ik, closure); | |
| 398 } | |
| 399 | |
| 400 klassKlass::oop_update_pointers(cm, obj, beg_addr, end_addr); | |
| 401 return ik->object_size(); | |
| 402 } | |
| 403 #endif // SERIALGC | |
| 404 | |
| 938 | 405 klassOop |
| 406 instanceKlassKlass::allocate_instance_klass(int vtable_len, int itable_len, | |
| 407 int static_field_size, | |
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408 unsigned nonstatic_oop_map_count, |
| 938 | 409 ReferenceType rt, TRAPS) { |
| 0 | 410 |
| 938 | 411 const int nonstatic_oop_map_size = |
| 412 instanceKlass::nonstatic_oop_map_size(nonstatic_oop_map_count); | |
| 0 | 413 int size = instanceKlass::object_size(align_object_offset(vtable_len) + align_object_offset(itable_len) + static_field_size + nonstatic_oop_map_size); |
| 414 | |
| 415 // Allocation | |
| 416 KlassHandle h_this_klass(THREAD, as_klassOop()); | |
| 417 KlassHandle k; | |
| 418 if (rt == REF_NONE) { | |
| 419 // regular klass | |
| 420 instanceKlass o; | |
| 421 k = base_create_klass(h_this_klass, size, o.vtbl_value(), CHECK_NULL); | |
| 422 } else { | |
| 423 // reference klass | |
| 424 instanceRefKlass o; | |
| 425 k = base_create_klass(h_this_klass, size, o.vtbl_value(), CHECK_NULL); | |
| 426 } | |
| 427 { | |
| 428 No_Safepoint_Verifier no_safepoint; // until k becomes parsable | |
| 429 instanceKlass* ik = (instanceKlass*) k()->klass_part(); | |
| 430 assert(!k()->is_parsable(), "not expecting parsability yet."); | |
| 431 | |
| 432 // The sizes of these these three variables are used for determining the | |
| 433 // size of the instanceKlassOop. It is critical that these are set to the right | |
| 434 // sizes before the first GC, i.e., when we allocate the mirror. | |
| 435 ik->set_vtable_length(vtable_len); | |
| 436 ik->set_itable_length(itable_len); | |
| 437 ik->set_static_field_size(static_field_size); | |
| 438 ik->set_nonstatic_oop_map_size(nonstatic_oop_map_size); | |
| 439 assert(k()->size() == size, "wrong size for object"); | |
| 440 | |
| 441 ik->set_array_klasses(NULL); | |
| 442 ik->set_methods(NULL); | |
| 443 ik->set_method_ordering(NULL); | |
| 444 ik->set_local_interfaces(NULL); | |
| 445 ik->set_transitive_interfaces(NULL); | |
| 446 ik->init_implementor(); | |
| 447 ik->set_fields(NULL); | |
| 448 ik->set_constants(NULL); | |
| 449 ik->set_class_loader(NULL); | |
| 450 ik->set_protection_domain(NULL); | |
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451 ik->set_host_klass(NULL); |
| 0 | 452 ik->set_signers(NULL); |
| 453 ik->set_source_file_name(NULL); | |
| 454 ik->set_source_debug_extension(NULL); | |
| 455 ik->set_inner_classes(NULL); | |
| 456 ik->set_static_oop_field_size(0); | |
| 457 ik->set_nonstatic_field_size(0); | |
| 975 | 458 ik->set_is_marked_dependent(false); |
| 0 | 459 ik->set_init_state(instanceKlass::allocated); |
| 460 ik->set_init_thread(NULL); | |
| 461 ik->set_reference_type(rt); | |
| 462 ik->set_oop_map_cache(NULL); | |
| 463 ik->set_jni_ids(NULL); | |
| 464 ik->set_osr_nmethods_head(NULL); | |
| 465 ik->set_breakpoints(NULL); | |
| 466 ik->init_previous_versions(); | |
| 467 ik->set_generic_signature(NULL); | |
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468 ik->set_bootstrap_method(NULL); |
| 0 | 469 ik->release_set_methods_jmethod_ids(NULL); |
| 470 ik->release_set_methods_cached_itable_indices(NULL); | |
| 471 ik->set_class_annotations(NULL); | |
| 472 ik->set_fields_annotations(NULL); | |
| 473 ik->set_methods_annotations(NULL); | |
| 474 ik->set_methods_parameter_annotations(NULL); | |
| 475 ik->set_methods_default_annotations(NULL); | |
| 476 ik->set_enclosing_method_indices(0, 0); | |
| 477 ik->set_jvmti_cached_class_field_map(NULL); | |
| 478 ik->set_initial_method_idnum(0); | |
| 479 assert(k()->is_parsable(), "should be parsable here."); | |
| 480 | |
| 481 // initialize the non-header words to zero | |
| 482 intptr_t* p = (intptr_t*)k(); | |
| 483 for (int index = instanceKlass::header_size(); index < size; index++) { | |
| 484 p[index] = NULL_WORD; | |
| 485 } | |
| 486 | |
| 487 // To get verify to work - must be set to partial loaded before first GC point. | |
| 488 k()->set_partially_loaded(); | |
| 489 } | |
| 490 | |
| 491 // GC can happen here | |
| 492 java_lang_Class::create_mirror(k, CHECK_NULL); // Allocate mirror | |
| 493 return k(); | |
| 494 } | |
| 495 | |
| 496 | |
| 497 | |
| 498 #ifndef PRODUCT | |
| 499 | |
| 500 // Printing | |
| 501 | |
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502 #define BULLET " - " |
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503 |
| 0 | 504 static const char* state_names[] = { |
| 505 "unparseable_by_gc", "allocated", "loaded", "linked", "being_initialized", "fully_initialized", "initialization_error" | |
| 506 }; | |
| 507 | |
| 508 | |
| 509 void instanceKlassKlass::oop_print_on(oop obj, outputStream* st) { | |
| 510 assert(obj->is_klass(), "must be klass"); | |
| 511 instanceKlass* ik = instanceKlass::cast(klassOop(obj)); | |
| 512 klassKlass::oop_print_on(obj, st); | |
| 513 | |
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514 st->print(BULLET"instance size: %d", ik->size_helper()); st->cr(); |
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515 st->print(BULLET"klass size: %d", ik->object_size()); st->cr(); |
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516 st->print(BULLET"access: "); ik->access_flags().print_on(st); st->cr(); |
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517 st->print(BULLET"state: "); st->print_cr(state_names[ik->_init_state]); |
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518 st->print(BULLET"name: "); ik->name()->print_value_on(st); st->cr(); |
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519 st->print(BULLET"super: "); ik->super()->print_value_on(st); st->cr(); |
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520 st->print(BULLET"sub: "); |
| 0 | 521 Klass* sub = ik->subklass(); |
| 522 int n; | |
| 523 for (n = 0; sub != NULL; n++, sub = sub->next_sibling()) { | |
| 524 if (n < MaxSubklassPrintSize) { | |
| 525 sub->as_klassOop()->print_value_on(st); | |
| 526 st->print(" "); | |
| 527 } | |
| 528 } | |
| 529 if (n >= MaxSubklassPrintSize) st->print("(%d more klasses...)", n - MaxSubklassPrintSize); | |
| 530 st->cr(); | |
| 531 | |
| 532 if (ik->is_interface()) { | |
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533 st->print_cr(BULLET"nof implementors: %d", ik->nof_implementors()); |
| 0 | 534 int print_impl = 0; |
| 535 for (int i = 0; i < instanceKlass::implementors_limit; i++) { | |
| 536 if (ik->implementor(i) != NULL) { | |
| 537 if (++print_impl == 1) | |
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538 st->print_cr(BULLET"implementor: "); |
| 0 | 539 st->print(" "); |
| 540 ik->implementor(i)->print_value_on(st); | |
| 541 } | |
| 542 } | |
| 543 if (print_impl > 0) st->cr(); | |
| 544 } | |
| 545 | |
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546 st->print(BULLET"arrays: "); ik->array_klasses()->print_value_on(st); st->cr(); |
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547 st->print(BULLET"methods: "); ik->methods()->print_value_on(st); st->cr(); |
| 0 | 548 if (Verbose) { |
| 549 objArrayOop methods = ik->methods(); | |
| 550 for(int i = 0; i < methods->length(); i++) { | |
| 551 tty->print("%d : ", i); methods->obj_at(i)->print_value(); tty->cr(); | |
| 552 } | |
| 553 } | |
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554 st->print(BULLET"method ordering: "); ik->method_ordering()->print_value_on(st); st->cr(); |
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555 st->print(BULLET"local interfaces: "); ik->local_interfaces()->print_value_on(st); st->cr(); |
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556 st->print(BULLET"trans. interfaces: "); ik->transitive_interfaces()->print_value_on(st); st->cr(); |
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557 st->print(BULLET"constants: "); ik->constants()->print_value_on(st); st->cr(); |
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558 st->print(BULLET"class loader: "); ik->class_loader()->print_value_on(st); st->cr(); |
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559 st->print(BULLET"protection domain: "); ik->protection_domain()->print_value_on(st); st->cr(); |
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560 st->print(BULLET"host class: "); ik->host_klass()->print_value_on(st); st->cr(); |
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561 st->print(BULLET"signers: "); ik->signers()->print_value_on(st); st->cr(); |
| 0 | 562 if (ik->source_file_name() != NULL) { |
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563 st->print(BULLET"source file: "); |
| 0 | 564 ik->source_file_name()->print_value_on(st); |
| 565 st->cr(); | |
| 566 } | |
| 567 if (ik->source_debug_extension() != NULL) { | |
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568 st->print(BULLET"source debug extension: "); |
| 0 | 569 ik->source_debug_extension()->print_value_on(st); |
| 570 st->cr(); | |
| 571 } | |
| 572 | |
| 573 { | |
| 574 ResourceMark rm; | |
| 575 // PreviousVersionInfo objects returned via PreviousVersionWalker | |
| 576 // contain a GrowableArray of handles. We have to clean up the | |
| 577 // GrowableArray _after_ the PreviousVersionWalker destructor | |
| 578 // has destroyed the handles. | |
| 579 { | |
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580 bool have_pv = false; |
| 0 | 581 PreviousVersionWalker pvw(ik); |
| 582 for (PreviousVersionInfo * pv_info = pvw.next_previous_version(); | |
| 583 pv_info != NULL; pv_info = pvw.next_previous_version()) { | |
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584 if (!have_pv) |
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585 st->print(BULLET"previous version: "); |
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586 have_pv = true; |
| 0 | 587 pv_info->prev_constant_pool_handle()()->print_value_on(st); |
| 588 } | |
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589 if (have_pv) st->cr(); |
| 0 | 590 } // pvw is cleaned up |
| 591 } // rm is cleaned up | |
| 592 | |
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593 if (ik->bootstrap_method() != NULL) { |
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594 st->print(BULLET"bootstrap method: "); |
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595 ik->bootstrap_method()->print_value_on(st); |
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596 st->cr(); |
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597 } |
| 0 | 598 if (ik->generic_signature() != NULL) { |
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599 st->print(BULLET"generic signature: "); |
| 0 | 600 ik->generic_signature()->print_value_on(st); |
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601 st->cr(); |
| 0 | 602 } |
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603 st->print(BULLET"inner classes: "); ik->inner_classes()->print_value_on(st); st->cr(); |
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604 st->print(BULLET"java mirror: "); ik->java_mirror()->print_value_on(st); st->cr(); |
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605 st->print(BULLET"vtable length %d (start addr: " INTPTR_FORMAT ")", ik->vtable_length(), ik->start_of_vtable()); st->cr(); |
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606 st->print(BULLET"itable length %d (start addr: " INTPTR_FORMAT ")", ik->itable_length(), ik->start_of_itable()); st->cr(); |
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607 st->print_cr(BULLET"---- static fields (%d words):", ik->static_field_size()); |
| 0 | 608 FieldPrinter print_static_field(st); |
| 609 ik->do_local_static_fields(&print_static_field); | |
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610 st->print_cr(BULLET"---- non-static fields (%d words):", ik->nonstatic_field_size()); |
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611 FieldPrinter print_nonstatic_field(st); |
| 0 | 612 ik->do_nonstatic_fields(&print_nonstatic_field); |
| 613 | |
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614 st->print(BULLET"static oop maps: "); |
| 0 | 615 if (ik->static_oop_field_size() > 0) { |
| 616 int first_offset = ik->offset_of_static_fields(); | |
| 617 st->print("%d-%d", first_offset, first_offset + ik->static_oop_field_size() - 1); | |
| 618 } | |
| 619 st->cr(); | |
| 620 | |
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621 st->print(BULLET"non-static oop maps: "); |
| 0 | 622 OopMapBlock* map = ik->start_of_nonstatic_oop_maps(); |
| 938 | 623 OopMapBlock* end_map = map + ik->nonstatic_oop_map_count(); |
| 0 | 624 while (map < end_map) { |
| 938 | 625 st->print("%d-%d ", map->offset(), map->offset() + heapOopSize*(map->count() - 1)); |
| 0 | 626 map++; |
| 627 } | |
| 628 st->cr(); | |
| 629 } | |
| 630 | |
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631 #endif //PRODUCT |
| 0 | 632 |
| 633 void instanceKlassKlass::oop_print_value_on(oop obj, outputStream* st) { | |
| 634 assert(obj->is_klass(), "must be klass"); | |
| 635 instanceKlass* ik = instanceKlass::cast(klassOop(obj)); | |
| 636 ik->name()->print_value_on(st); | |
| 637 } | |
| 638 | |
| 639 const char* instanceKlassKlass::internal_name() const { | |
| 640 return "{instance class}"; | |
| 641 } | |
| 642 | |
| 643 // Verification | |
| 644 | |
| 645 class VerifyFieldClosure: public OopClosure { | |
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646 protected: |
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647 template <class T> void do_oop_work(T* p) { |
| 0 | 648 guarantee(Universe::heap()->is_in(p), "should be in heap"); |
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649 oop obj = oopDesc::load_decode_heap_oop(p); |
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650 guarantee(obj->is_oop_or_null(), "should be in heap"); |
| 0 | 651 } |
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652 public: |
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6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
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653 virtual void do_oop(oop* p) { VerifyFieldClosure::do_oop_work(p); } |
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6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
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654 virtual void do_oop(narrowOop* p) { VerifyFieldClosure::do_oop_work(p); } |
| 0 | 655 }; |
| 656 | |
| 657 void instanceKlassKlass::oop_verify_on(oop obj, outputStream* st) { | |
| 658 klassKlass::oop_verify_on(obj, st); | |
| 659 if (!obj->partially_loaded()) { | |
| 660 Thread *thread = Thread::current(); | |
| 661 instanceKlass* ik = instanceKlass::cast(klassOop(obj)); | |
| 662 | |
| 663 #ifndef PRODUCT | |
| 664 // Avoid redundant verifies | |
| 665 if (ik->_verify_count == Universe::verify_count()) return; | |
| 666 ik->_verify_count = Universe::verify_count(); | |
| 667 #endif | |
| 668 // Verify that klass is present in SystemDictionary | |
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669 if (ik->is_loaded() && !ik->is_anonymous()) { |
| 0 | 670 symbolHandle h_name (thread, ik->name()); |
| 671 Handle h_loader (thread, ik->class_loader()); | |
| 672 Handle h_obj(thread, obj); | |
| 673 SystemDictionary::verify_obj_klass_present(h_obj, h_name, h_loader); | |
| 674 } | |
| 675 | |
| 676 // Verify static fields | |
| 677 VerifyFieldClosure blk; | |
| 678 ik->iterate_static_fields(&blk); | |
| 679 | |
| 680 // Verify vtables | |
| 681 if (ik->is_linked()) { | |
| 682 ResourceMark rm(thread); | |
| 683 // $$$ This used to be done only for m/s collections. Doing it | |
| 684 // always seemed a valid generalization. (DLD -- 6/00) | |
| 685 ik->vtable()->verify(st); | |
| 686 } | |
| 687 | |
| 688 // Verify oop map cache | |
| 689 if (ik->oop_map_cache() != NULL) { | |
| 690 ik->oop_map_cache()->verify(); | |
| 691 } | |
| 692 | |
| 693 // Verify first subklass | |
| 694 if (ik->subklass_oop() != NULL) { | |
| 695 guarantee(ik->subklass_oop()->is_perm(), "should be in permspace"); | |
| 696 guarantee(ik->subklass_oop()->is_klass(), "should be klass"); | |
| 697 } | |
| 698 | |
| 699 // Verify siblings | |
| 700 klassOop super = ik->super(); | |
| 701 Klass* sib = ik->next_sibling(); | |
| 702 int sib_count = 0; | |
| 703 while (sib != NULL) { | |
| 704 if (sib == ik) { | |
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705 fatal(err_msg("subclass cycle of length %d", sib_count)); |
| 0 | 706 } |
| 707 if (sib_count >= 100000) { | |
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708 fatal(err_msg("suspiciously long subclass list %d", sib_count)); |
| 0 | 709 } |
| 710 guarantee(sib->as_klassOop()->is_klass(), "should be klass"); | |
| 711 guarantee(sib->as_klassOop()->is_perm(), "should be in permspace"); | |
| 712 guarantee(sib->super() == super, "siblings should have same superklass"); | |
| 713 sib = sib->next_sibling(); | |
| 714 } | |
| 715 | |
| 716 // Verify implementor fields | |
| 717 bool saw_null_impl = false; | |
| 718 for (int i = 0; i < instanceKlass::implementors_limit; i++) { | |
| 719 klassOop im = ik->implementor(i); | |
| 720 if (im == NULL) { saw_null_impl = true; continue; } | |
| 721 guarantee(!saw_null_impl, "non-nulls must preceded all nulls"); | |
| 722 guarantee(ik->is_interface(), "only interfaces should have implementor set"); | |
| 723 guarantee(i < ik->nof_implementors(), "should only have one implementor"); | |
| 724 guarantee(im->is_perm(), "should be in permspace"); | |
| 725 guarantee(im->is_klass(), "should be klass"); | |
| 726 guarantee(!Klass::cast(klassOop(im))->is_interface(), "implementors cannot be interfaces"); | |
| 727 } | |
| 728 | |
| 729 // Verify local interfaces | |
| 730 objArrayOop local_interfaces = ik->local_interfaces(); | |
| 731 guarantee(local_interfaces->is_perm(), "should be in permspace"); | |
| 732 guarantee(local_interfaces->is_objArray(), "should be obj array"); | |
| 733 int j; | |
| 734 for (j = 0; j < local_interfaces->length(); j++) { | |
| 735 oop e = local_interfaces->obj_at(j); | |
| 736 guarantee(e->is_klass() && Klass::cast(klassOop(e))->is_interface(), "invalid local interface"); | |
| 737 } | |
| 738 | |
| 739 // Verify transitive interfaces | |
| 740 objArrayOop transitive_interfaces = ik->transitive_interfaces(); | |
| 741 guarantee(transitive_interfaces->is_perm(), "should be in permspace"); | |
| 742 guarantee(transitive_interfaces->is_objArray(), "should be obj array"); | |
| 743 for (j = 0; j < transitive_interfaces->length(); j++) { | |
| 744 oop e = transitive_interfaces->obj_at(j); | |
| 745 guarantee(e->is_klass() && Klass::cast(klassOop(e))->is_interface(), "invalid transitive interface"); | |
| 746 } | |
| 747 | |
| 748 // Verify methods | |
| 749 objArrayOop methods = ik->methods(); | |
| 750 guarantee(methods->is_perm(), "should be in permspace"); | |
| 751 guarantee(methods->is_objArray(), "should be obj array"); | |
| 752 for (j = 0; j < methods->length(); j++) { | |
| 753 guarantee(methods->obj_at(j)->is_method(), "non-method in methods array"); | |
| 754 } | |
| 755 for (j = 0; j < methods->length() - 1; j++) { | |
| 756 methodOop m1 = methodOop(methods->obj_at(j)); | |
| 757 methodOop m2 = methodOop(methods->obj_at(j + 1)); | |
| 758 guarantee(m1->name()->fast_compare(m2->name()) <= 0, "methods not sorted correctly"); | |
| 759 } | |
| 760 | |
| 761 // Verify method ordering | |
| 762 typeArrayOop method_ordering = ik->method_ordering(); | |
| 763 guarantee(method_ordering->is_perm(), "should be in permspace"); | |
| 764 guarantee(method_ordering->is_typeArray(), "should be type array"); | |
| 765 int length = method_ordering->length(); | |
| 766 if (JvmtiExport::can_maintain_original_method_order()) { | |
| 767 guarantee(length == methods->length(), "invalid method ordering length"); | |
| 768 jlong sum = 0; | |
| 769 for (j = 0; j < length; j++) { | |
| 770 int original_index = method_ordering->int_at(j); | |
| 771 guarantee(original_index >= 0 && original_index < length, "invalid method ordering index"); | |
| 772 sum += original_index; | |
| 773 } | |
| 774 // Verify sum of indices 0,1,...,length-1 | |
| 775 guarantee(sum == ((jlong)length*(length-1))/2, "invalid method ordering sum"); | |
| 776 } else { | |
| 777 guarantee(length == 0, "invalid method ordering length"); | |
| 778 } | |
| 779 | |
| 780 // Verify JNI static field identifiers | |
| 781 if (ik->jni_ids() != NULL) { | |
| 782 ik->jni_ids()->verify(ik->as_klassOop()); | |
| 783 } | |
| 784 | |
| 785 // Verify other fields | |
| 786 if (ik->array_klasses() != NULL) { | |
| 787 guarantee(ik->array_klasses()->is_perm(), "should be in permspace"); | |
| 788 guarantee(ik->array_klasses()->is_klass(), "should be klass"); | |
| 789 } | |
| 790 guarantee(ik->fields()->is_perm(), "should be in permspace"); | |
| 791 guarantee(ik->fields()->is_typeArray(), "should be type array"); | |
| 792 guarantee(ik->constants()->is_perm(), "should be in permspace"); | |
| 793 guarantee(ik->constants()->is_constantPool(), "should be constant pool"); | |
| 794 guarantee(ik->inner_classes()->is_perm(), "should be in permspace"); | |
| 795 guarantee(ik->inner_classes()->is_typeArray(), "should be type array"); | |
| 796 if (ik->source_file_name() != NULL) { | |
| 797 guarantee(ik->source_file_name()->is_perm(), "should be in permspace"); | |
| 798 guarantee(ik->source_file_name()->is_symbol(), "should be symbol"); | |
| 799 } | |
| 800 if (ik->source_debug_extension() != NULL) { | |
| 801 guarantee(ik->source_debug_extension()->is_perm(), "should be in permspace"); | |
| 802 guarantee(ik->source_debug_extension()->is_symbol(), "should be symbol"); | |
| 803 } | |
| 804 if (ik->protection_domain() != NULL) { | |
| 805 guarantee(ik->protection_domain()->is_oop(), "should be oop"); | |
| 806 } | |
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807 if (ik->host_klass() != NULL) { |
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808 guarantee(ik->host_klass()->is_oop(), "should be oop"); |
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809 } |
| 0 | 810 if (ik->signers() != NULL) { |
| 811 guarantee(ik->signers()->is_objArray(), "should be obj array"); | |
| 812 } | |
| 813 if (ik->generic_signature() != NULL) { | |
| 814 guarantee(ik->generic_signature()->is_perm(), "should be in permspace"); | |
| 815 guarantee(ik->generic_signature()->is_symbol(), "should be symbol"); | |
| 816 } | |
| 817 if (ik->class_annotations() != NULL) { | |
| 818 guarantee(ik->class_annotations()->is_typeArray(), "should be type array"); | |
| 819 } | |
| 820 if (ik->fields_annotations() != NULL) { | |
| 821 guarantee(ik->fields_annotations()->is_objArray(), "should be obj array"); | |
| 822 } | |
| 823 if (ik->methods_annotations() != NULL) { | |
| 824 guarantee(ik->methods_annotations()->is_objArray(), "should be obj array"); | |
| 825 } | |
| 826 if (ik->methods_parameter_annotations() != NULL) { | |
| 827 guarantee(ik->methods_parameter_annotations()->is_objArray(), "should be obj array"); | |
| 828 } | |
| 829 if (ik->methods_default_annotations() != NULL) { | |
| 830 guarantee(ik->methods_default_annotations()->is_objArray(), "should be obj array"); | |
| 831 } | |
| 832 } | |
| 833 } | |
| 834 | |
| 835 | |
| 836 bool instanceKlassKlass::oop_partially_loaded(oop obj) const { | |
| 837 assert(obj->is_klass(), "object must be klass"); | |
| 838 instanceKlass* ik = instanceKlass::cast(klassOop(obj)); | |
| 839 assert(ik->oop_is_instance(), "object must be instanceKlass"); | |
| 840 return ik->transitive_interfaces() == (objArrayOop) obj; // Check whether transitive_interfaces points to self | |
| 841 } | |
| 842 | |
| 843 | |
| 844 // The transitive_interfaces is the last field set when loading an object. | |
| 845 void instanceKlassKlass::oop_set_partially_loaded(oop obj) { | |
| 846 assert(obj->is_klass(), "object must be klass"); | |
| 847 instanceKlass* ik = instanceKlass::cast(klassOop(obj)); | |
| 848 // Set the layout helper to a place-holder value, until fuller initialization. | |
| 849 // (This allows asserts in oop_is_instance to succeed.) | |
| 850 ik->set_layout_helper(Klass::instance_layout_helper(0, true)); | |
| 851 assert(ik->oop_is_instance(), "object must be instanceKlass"); | |
| 852 assert(ik->transitive_interfaces() == NULL, "just checking"); | |
| 853 ik->set_transitive_interfaces((objArrayOop) obj); // Temporarily set transitive_interfaces to point to self | |
| 854 } |