Mercurial > hg > truffle
annotate src/share/vm/oops/instanceKlassKlass.cpp @ 2376:c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
Reviewed-by: kvn, coleenp, twisti, stefank
| author | never |
|---|---|
| date | Fri, 18 Mar 2011 16:00:34 -0700 |
| parents | e5383553fd4e |
| children | ed69575596ac |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 2227 | 2 * Copyright (c) 1997, 2011, 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 MarkSweep::mark_and_push(ik->adr_host_klass()); |
| 0 | 107 MarkSweep::mark_and_push(ik->adr_signers()); |
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108 MarkSweep::mark_and_push(ik->adr_bootstrap_method()); |
| 0 | 109 MarkSweep::mark_and_push(ik->adr_class_annotations()); |
| 110 MarkSweep::mark_and_push(ik->adr_fields_annotations()); | |
| 111 MarkSweep::mark_and_push(ik->adr_methods_annotations()); | |
| 112 MarkSweep::mark_and_push(ik->adr_methods_parameter_annotations()); | |
| 113 MarkSweep::mark_and_push(ik->adr_methods_default_annotations()); | |
| 114 | |
| 115 // We do not follow adr_implementors() here. It is followed later | |
| 116 // in instanceKlass::follow_weak_klass_links() | |
| 117 | |
| 118 klassKlass::oop_follow_contents(obj); | |
| 119 | |
| 120 iterate_c_heap_oops(ik, &MarkSweep::mark_and_push_closure); | |
| 121 } | |
| 122 | |
| 123 #ifndef SERIALGC | |
| 124 void instanceKlassKlass::oop_follow_contents(ParCompactionManager* cm, | |
| 125 oop obj) { | |
| 126 assert(obj->is_klass(),"must be a klass"); | |
| 127 assert(klassOop(obj)->klass_part()->oop_is_instance_slow(), "must be instance klass"); | |
| 128 | |
| 129 instanceKlass* ik = instanceKlass::cast(klassOop(obj)); | |
| 130 ik->vtable()->oop_follow_contents(cm); | |
| 131 ik->itable()->oop_follow_contents(cm); | |
| 132 | |
| 133 PSParallelCompact::mark_and_push(cm, ik->adr_array_klasses()); | |
| 134 PSParallelCompact::mark_and_push(cm, ik->adr_methods()); | |
| 135 PSParallelCompact::mark_and_push(cm, ik->adr_method_ordering()); | |
| 136 PSParallelCompact::mark_and_push(cm, ik->adr_local_interfaces()); | |
| 137 PSParallelCompact::mark_and_push(cm, ik->adr_transitive_interfaces()); | |
| 138 PSParallelCompact::mark_and_push(cm, ik->adr_fields()); | |
| 139 PSParallelCompact::mark_and_push(cm, ik->adr_constants()); | |
| 140 PSParallelCompact::mark_and_push(cm, ik->adr_class_loader()); | |
| 141 PSParallelCompact::mark_and_push(cm, ik->adr_inner_classes()); | |
| 142 PSParallelCompact::mark_and_push(cm, ik->adr_protection_domain()); | |
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143 PSParallelCompact::mark_and_push(cm, ik->adr_host_klass()); |
| 0 | 144 PSParallelCompact::mark_and_push(cm, ik->adr_signers()); |
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145 PSParallelCompact::mark_and_push(cm, ik->adr_bootstrap_method()); |
| 0 | 146 PSParallelCompact::mark_and_push(cm, ik->adr_class_annotations()); |
| 147 PSParallelCompact::mark_and_push(cm, ik->adr_fields_annotations()); | |
| 148 PSParallelCompact::mark_and_push(cm, ik->adr_methods_annotations()); | |
| 149 PSParallelCompact::mark_and_push(cm, ik->adr_methods_parameter_annotations()); | |
| 150 PSParallelCompact::mark_and_push(cm, ik->adr_methods_default_annotations()); | |
| 151 | |
| 152 // We do not follow adr_implementor() here. It is followed later | |
| 153 // in instanceKlass::follow_weak_klass_links() | |
| 154 | |
| 155 klassKlass::oop_follow_contents(cm, obj); | |
| 156 | |
| 157 PSParallelCompact::MarkAndPushClosure mark_and_push_closure(cm); | |
| 158 iterate_c_heap_oops(ik, &mark_and_push_closure); | |
| 159 } | |
| 160 #endif // SERIALGC | |
| 161 | |
| 162 int instanceKlassKlass::oop_oop_iterate(oop obj, OopClosure* blk) { | |
| 163 assert(obj->is_klass(),"must be a klass"); | |
| 164 assert(klassOop(obj)->klass_part()->oop_is_instance_slow(), "must be instance klass"); | |
| 165 instanceKlass* ik = instanceKlass::cast(klassOop(obj)); | |
| 166 // Get size before changing pointers. | |
| 167 // Don't call size() or oop_size() since that is a virtual call. | |
| 168 int size = ik->object_size(); | |
| 169 | |
| 170 ik->vtable()->oop_oop_iterate(blk); | |
| 171 ik->itable()->oop_oop_iterate(blk); | |
| 172 | |
| 173 blk->do_oop(ik->adr_array_klasses()); | |
| 174 blk->do_oop(ik->adr_methods()); | |
| 175 blk->do_oop(ik->adr_method_ordering()); | |
| 176 blk->do_oop(ik->adr_local_interfaces()); | |
| 177 blk->do_oop(ik->adr_transitive_interfaces()); | |
| 178 blk->do_oop(ik->adr_fields()); | |
| 179 blk->do_oop(ik->adr_constants()); | |
| 180 blk->do_oop(ik->adr_class_loader()); | |
| 181 blk->do_oop(ik->adr_protection_domain()); | |
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182 blk->do_oop(ik->adr_host_klass()); |
| 0 | 183 blk->do_oop(ik->adr_signers()); |
| 184 blk->do_oop(ik->adr_inner_classes()); | |
| 185 for (int i = 0; i < instanceKlass::implementors_limit; i++) { | |
| 186 blk->do_oop(&ik->adr_implementors()[i]); | |
| 187 } | |
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188 blk->do_oop(ik->adr_bootstrap_method()); |
| 0 | 189 blk->do_oop(ik->adr_class_annotations()); |
| 190 blk->do_oop(ik->adr_fields_annotations()); | |
| 191 blk->do_oop(ik->adr_methods_annotations()); | |
| 192 blk->do_oop(ik->adr_methods_parameter_annotations()); | |
| 193 blk->do_oop(ik->adr_methods_default_annotations()); | |
| 194 | |
| 195 klassKlass::oop_oop_iterate(obj, blk); | |
| 196 | |
| 197 if(ik->oop_map_cache() != NULL) ik->oop_map_cache()->oop_iterate(blk); | |
| 198 return size; | |
| 199 } | |
| 200 | |
| 201 int instanceKlassKlass::oop_oop_iterate_m(oop obj, OopClosure* blk, | |
| 202 MemRegion mr) { | |
| 203 assert(obj->is_klass(),"must be a klass"); | |
| 204 assert(klassOop(obj)->klass_part()->oop_is_instance_slow(), "must be instance klass"); | |
| 205 instanceKlass* ik = instanceKlass::cast(klassOop(obj)); | |
| 206 // Get size before changing pointers. | |
| 207 // Don't call size() or oop_size() since that is a virtual call. | |
| 208 int size = ik->object_size(); | |
| 209 | |
| 210 ik->vtable()->oop_oop_iterate_m(blk, mr); | |
| 211 ik->itable()->oop_oop_iterate_m(blk, mr); | |
| 212 | |
| 213 oop* adr; | |
| 214 adr = ik->adr_array_klasses(); | |
| 215 if (mr.contains(adr)) blk->do_oop(adr); | |
| 216 adr = ik->adr_methods(); | |
| 217 if (mr.contains(adr)) blk->do_oop(adr); | |
| 218 adr = ik->adr_method_ordering(); | |
| 219 if (mr.contains(adr)) blk->do_oop(adr); | |
| 220 adr = ik->adr_local_interfaces(); | |
| 221 if (mr.contains(adr)) blk->do_oop(adr); | |
| 222 adr = ik->adr_transitive_interfaces(); | |
| 223 if (mr.contains(adr)) blk->do_oop(adr); | |
| 224 adr = ik->adr_fields(); | |
| 225 if (mr.contains(adr)) blk->do_oop(adr); | |
| 226 adr = ik->adr_constants(); | |
| 227 if (mr.contains(adr)) blk->do_oop(adr); | |
| 228 adr = ik->adr_class_loader(); | |
| 229 if (mr.contains(adr)) blk->do_oop(adr); | |
| 230 adr = ik->adr_protection_domain(); | |
| 231 if (mr.contains(adr)) blk->do_oop(adr); | |
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232 adr = ik->adr_host_klass(); |
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233 if (mr.contains(adr)) blk->do_oop(adr); |
| 0 | 234 adr = ik->adr_signers(); |
| 235 if (mr.contains(adr)) blk->do_oop(adr); | |
| 236 adr = ik->adr_inner_classes(); | |
| 237 if (mr.contains(adr)) blk->do_oop(adr); | |
| 238 adr = ik->adr_implementors(); | |
| 239 for (int i = 0; i < instanceKlass::implementors_limit; i++) { | |
| 240 if (mr.contains(&adr[i])) blk->do_oop(&adr[i]); | |
| 241 } | |
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242 adr = ik->adr_bootstrap_method(); |
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243 if (mr.contains(adr)) blk->do_oop(adr); |
| 0 | 244 adr = ik->adr_class_annotations(); |
| 245 if (mr.contains(adr)) blk->do_oop(adr); | |
| 246 adr = ik->adr_fields_annotations(); | |
| 247 if (mr.contains(adr)) blk->do_oop(adr); | |
| 248 adr = ik->adr_methods_annotations(); | |
| 249 if (mr.contains(adr)) blk->do_oop(adr); | |
| 250 adr = ik->adr_methods_parameter_annotations(); | |
| 251 if (mr.contains(adr)) blk->do_oop(adr); | |
| 252 adr = ik->adr_methods_default_annotations(); | |
| 253 if (mr.contains(adr)) blk->do_oop(adr); | |
| 254 | |
| 255 klassKlass::oop_oop_iterate_m(obj, blk, mr); | |
| 256 | |
| 257 if(ik->oop_map_cache() != NULL) ik->oop_map_cache()->oop_iterate(blk, mr); | |
| 258 return size; | |
| 259 } | |
| 260 | |
| 261 int instanceKlassKlass::oop_adjust_pointers(oop obj) { | |
| 262 assert(obj->is_klass(),"must be a klass"); | |
| 263 assert(klassOop(obj)->klass_part()->oop_is_instance_slow(), "must be instance klass"); | |
| 264 | |
| 265 instanceKlass* ik = instanceKlass::cast(klassOop(obj)); | |
| 266 ik->vtable()->oop_adjust_pointers(); | |
| 267 ik->itable()->oop_adjust_pointers(); | |
| 268 | |
| 269 MarkSweep::adjust_pointer(ik->adr_array_klasses()); | |
| 270 MarkSweep::adjust_pointer(ik->adr_methods()); | |
| 271 MarkSweep::adjust_pointer(ik->adr_method_ordering()); | |
| 272 MarkSweep::adjust_pointer(ik->adr_local_interfaces()); | |
| 273 MarkSweep::adjust_pointer(ik->adr_transitive_interfaces()); | |
| 274 MarkSweep::adjust_pointer(ik->adr_fields()); | |
| 275 MarkSweep::adjust_pointer(ik->adr_constants()); | |
| 276 MarkSweep::adjust_pointer(ik->adr_class_loader()); | |
| 277 MarkSweep::adjust_pointer(ik->adr_protection_domain()); | |
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278 MarkSweep::adjust_pointer(ik->adr_host_klass()); |
| 0 | 279 MarkSweep::adjust_pointer(ik->adr_signers()); |
| 280 MarkSweep::adjust_pointer(ik->adr_inner_classes()); | |
| 281 for (int i = 0; i < instanceKlass::implementors_limit; i++) { | |
| 282 MarkSweep::adjust_pointer(&ik->adr_implementors()[i]); | |
| 283 } | |
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284 MarkSweep::adjust_pointer(ik->adr_bootstrap_method()); |
| 0 | 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 (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 oop* bsm_addr = ik->adr_bootstrap_method(); |
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321 if (PSScavenge::should_scavenge(bsm_addr)) { |
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322 pm->claim_or_forward_depth(bsm_addr); |
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323 } |
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324 |
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325 klassKlass::oop_push_contents(pm, obj); |
| 0 | 326 } |
| 327 | |
| 328 int instanceKlassKlass::oop_update_pointers(ParCompactionManager* cm, oop obj) { | |
| 329 assert(obj->is_klass(),"must be a klass"); | |
| 330 assert(klassOop(obj)->klass_part()->oop_is_instance_slow(), | |
| 331 "must be instance klass"); | |
| 332 | |
| 333 instanceKlass* ik = instanceKlass::cast(klassOop(obj)); | |
| 334 ik->vtable()->oop_update_pointers(cm); | |
| 335 ik->itable()->oop_update_pointers(cm); | |
| 336 | |
| 337 oop* const beg_oop = ik->oop_block_beg(); | |
| 338 oop* const end_oop = ik->oop_block_end(); | |
| 339 for (oop* cur_oop = beg_oop; cur_oop < end_oop; ++cur_oop) { | |
| 340 PSParallelCompact::adjust_pointer(cur_oop); | |
| 341 } | |
| 342 | |
| 343 OopClosure* closure = PSParallelCompact::adjust_root_pointer_closure(); | |
| 344 iterate_c_heap_oops(ik, closure); | |
| 345 | |
| 346 klassKlass::oop_update_pointers(cm, obj); | |
| 347 return ik->object_size(); | |
| 348 } | |
| 349 | |
| 350 #endif // SERIALGC | |
| 351 | |
| 938 | 352 klassOop |
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353 instanceKlassKlass::allocate_instance_klass(Symbol* name, int vtable_len, int itable_len, |
| 938 | 354 int static_field_size, |
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355 unsigned nonstatic_oop_map_count, |
| 938 | 356 ReferenceType rt, TRAPS) { |
| 0 | 357 |
| 938 | 358 const int nonstatic_oop_map_size = |
| 359 instanceKlass::nonstatic_oop_map_size(nonstatic_oop_map_count); | |
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360 int size = instanceKlass::object_size(align_object_offset(vtable_len) + align_object_offset(itable_len) + nonstatic_oop_map_size); |
| 0 | 361 |
| 362 // Allocation | |
| 363 KlassHandle h_this_klass(THREAD, as_klassOop()); | |
| 364 KlassHandle k; | |
| 365 if (rt == REF_NONE) { | |
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366 if (name != vmSymbols::java_lang_Class()) { |
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367 // regular klass |
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368 instanceKlass o; |
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369 k = base_create_klass(h_this_klass, size, o.vtbl_value(), CHECK_NULL); |
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370 } else { |
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371 // Class |
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372 instanceMirrorKlass o; |
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373 k = base_create_klass(h_this_klass, size, o.vtbl_value(), CHECK_NULL); |
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374 } |
| 0 | 375 } else { |
| 376 // reference klass | |
| 377 instanceRefKlass o; | |
| 378 k = base_create_klass(h_this_klass, size, o.vtbl_value(), CHECK_NULL); | |
| 379 } | |
| 380 { | |
| 381 No_Safepoint_Verifier no_safepoint; // until k becomes parsable | |
| 382 instanceKlass* ik = (instanceKlass*) k()->klass_part(); | |
| 383 assert(!k()->is_parsable(), "not expecting parsability yet."); | |
| 384 | |
| 385 // The sizes of these these three variables are used for determining the | |
| 386 // size of the instanceKlassOop. It is critical that these are set to the right | |
| 387 // sizes before the first GC, i.e., when we allocate the mirror. | |
| 388 ik->set_vtable_length(vtable_len); | |
| 389 ik->set_itable_length(itable_len); | |
| 390 ik->set_static_field_size(static_field_size); | |
| 391 ik->set_nonstatic_oop_map_size(nonstatic_oop_map_size); | |
| 392 assert(k()->size() == size, "wrong size for object"); | |
| 393 | |
| 394 ik->set_array_klasses(NULL); | |
| 395 ik->set_methods(NULL); | |
| 396 ik->set_method_ordering(NULL); | |
| 397 ik->set_local_interfaces(NULL); | |
| 398 ik->set_transitive_interfaces(NULL); | |
| 399 ik->init_implementor(); | |
| 400 ik->set_fields(NULL); | |
| 401 ik->set_constants(NULL); | |
| 402 ik->set_class_loader(NULL); | |
| 403 ik->set_protection_domain(NULL); | |
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404 ik->set_host_klass(NULL); |
| 0 | 405 ik->set_signers(NULL); |
| 406 ik->set_source_file_name(NULL); | |
| 407 ik->set_source_debug_extension(NULL); | |
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408 ik->set_source_debug_extension(NULL); |
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409 ik->set_array_name(NULL); |
| 0 | 410 ik->set_inner_classes(NULL); |
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411 ik->set_static_oop_field_count(0); |
| 0 | 412 ik->set_nonstatic_field_size(0); |
| 975 | 413 ik->set_is_marked_dependent(false); |
| 0 | 414 ik->set_init_state(instanceKlass::allocated); |
| 415 ik->set_init_thread(NULL); | |
| 416 ik->set_reference_type(rt); | |
| 417 ik->set_oop_map_cache(NULL); | |
| 418 ik->set_jni_ids(NULL); | |
| 419 ik->set_osr_nmethods_head(NULL); | |
| 420 ik->set_breakpoints(NULL); | |
| 421 ik->init_previous_versions(); | |
| 422 ik->set_generic_signature(NULL); | |
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423 ik->set_bootstrap_method(NULL); |
| 0 | 424 ik->release_set_methods_jmethod_ids(NULL); |
| 425 ik->release_set_methods_cached_itable_indices(NULL); | |
| 426 ik->set_class_annotations(NULL); | |
| 427 ik->set_fields_annotations(NULL); | |
| 428 ik->set_methods_annotations(NULL); | |
| 429 ik->set_methods_parameter_annotations(NULL); | |
| 430 ik->set_methods_default_annotations(NULL); | |
| 431 ik->set_enclosing_method_indices(0, 0); | |
| 432 ik->set_jvmti_cached_class_field_map(NULL); | |
| 433 ik->set_initial_method_idnum(0); | |
| 434 assert(k()->is_parsable(), "should be parsable here."); | |
| 435 | |
| 436 // initialize the non-header words to zero | |
| 437 intptr_t* p = (intptr_t*)k(); | |
| 438 for (int index = instanceKlass::header_size(); index < size; index++) { | |
| 439 p[index] = NULL_WORD; | |
| 440 } | |
| 441 | |
| 442 // To get verify to work - must be set to partial loaded before first GC point. | |
| 443 k()->set_partially_loaded(); | |
| 444 } | |
| 445 return k(); | |
| 446 } | |
| 447 | |
| 448 | |
| 449 | |
| 450 #ifndef PRODUCT | |
| 451 | |
| 452 // Printing | |
| 453 | |
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454 #define BULLET " - " |
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455 |
| 0 | 456 static const char* state_names[] = { |
| 457 "unparseable_by_gc", "allocated", "loaded", "linked", "being_initialized", "fully_initialized", "initialization_error" | |
| 458 }; | |
| 459 | |
| 460 | |
| 461 void instanceKlassKlass::oop_print_on(oop obj, outputStream* st) { | |
| 462 assert(obj->is_klass(), "must be klass"); | |
| 463 instanceKlass* ik = instanceKlass::cast(klassOop(obj)); | |
| 464 klassKlass::oop_print_on(obj, st); | |
| 465 | |
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466 st->print(BULLET"instance size: %d", ik->size_helper()); st->cr(); |
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467 st->print(BULLET"klass size: %d", ik->object_size()); st->cr(); |
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468 st->print(BULLET"access: "); ik->access_flags().print_on(st); st->cr(); |
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469 st->print(BULLET"state: "); st->print_cr(state_names[ik->_init_state]); |
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470 st->print(BULLET"name: "); ik->name()->print_value_on(st); st->cr(); |
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471 st->print(BULLET"super: "); ik->super()->print_value_on(st); st->cr(); |
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472 st->print(BULLET"sub: "); |
| 0 | 473 Klass* sub = ik->subklass(); |
| 474 int n; | |
| 475 for (n = 0; sub != NULL; n++, sub = sub->next_sibling()) { | |
| 476 if (n < MaxSubklassPrintSize) { | |
| 477 sub->as_klassOop()->print_value_on(st); | |
| 478 st->print(" "); | |
| 479 } | |
| 480 } | |
| 481 if (n >= MaxSubklassPrintSize) st->print("(%d more klasses...)", n - MaxSubklassPrintSize); | |
| 482 st->cr(); | |
| 483 | |
| 484 if (ik->is_interface()) { | |
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485 st->print_cr(BULLET"nof implementors: %d", ik->nof_implementors()); |
| 0 | 486 int print_impl = 0; |
| 487 for (int i = 0; i < instanceKlass::implementors_limit; i++) { | |
| 488 if (ik->implementor(i) != NULL) { | |
| 489 if (++print_impl == 1) | |
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490 st->print_cr(BULLET"implementor: "); |
| 0 | 491 st->print(" "); |
| 492 ik->implementor(i)->print_value_on(st); | |
| 493 } | |
| 494 } | |
| 495 if (print_impl > 0) st->cr(); | |
| 496 } | |
| 497 | |
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498 st->print(BULLET"arrays: "); ik->array_klasses()->print_value_on(st); st->cr(); |
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499 st->print(BULLET"methods: "); ik->methods()->print_value_on(st); st->cr(); |
| 0 | 500 if (Verbose) { |
| 501 objArrayOop methods = ik->methods(); | |
| 502 for(int i = 0; i < methods->length(); i++) { | |
| 503 tty->print("%d : ", i); methods->obj_at(i)->print_value(); tty->cr(); | |
| 504 } | |
| 505 } | |
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506 st->print(BULLET"method ordering: "); ik->method_ordering()->print_value_on(st); st->cr(); |
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507 st->print(BULLET"local interfaces: "); ik->local_interfaces()->print_value_on(st); st->cr(); |
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508 st->print(BULLET"trans. interfaces: "); ik->transitive_interfaces()->print_value_on(st); st->cr(); |
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509 st->print(BULLET"constants: "); ik->constants()->print_value_on(st); st->cr(); |
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510 st->print(BULLET"class loader: "); ik->class_loader()->print_value_on(st); st->cr(); |
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511 st->print(BULLET"protection domain: "); ik->protection_domain()->print_value_on(st); st->cr(); |
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512 st->print(BULLET"host class: "); ik->host_klass()->print_value_on(st); st->cr(); |
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513 st->print(BULLET"signers: "); ik->signers()->print_value_on(st); st->cr(); |
| 0 | 514 if (ik->source_file_name() != NULL) { |
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515 st->print(BULLET"source file: "); |
| 0 | 516 ik->source_file_name()->print_value_on(st); |
| 517 st->cr(); | |
| 518 } | |
| 519 if (ik->source_debug_extension() != NULL) { | |
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520 st->print(BULLET"source debug extension: "); |
| 0 | 521 ik->source_debug_extension()->print_value_on(st); |
| 522 st->cr(); | |
| 523 } | |
| 524 | |
| 525 { | |
| 526 ResourceMark rm; | |
| 527 // PreviousVersionInfo objects returned via PreviousVersionWalker | |
| 528 // contain a GrowableArray of handles. We have to clean up the | |
| 529 // GrowableArray _after_ the PreviousVersionWalker destructor | |
| 530 // has destroyed the handles. | |
| 531 { | |
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532 bool have_pv = false; |
| 0 | 533 PreviousVersionWalker pvw(ik); |
| 534 for (PreviousVersionInfo * pv_info = pvw.next_previous_version(); | |
| 535 pv_info != NULL; pv_info = pvw.next_previous_version()) { | |
|
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536 if (!have_pv) |
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537 st->print(BULLET"previous version: "); |
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538 have_pv = true; |
| 0 | 539 pv_info->prev_constant_pool_handle()()->print_value_on(st); |
| 540 } | |
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541 if (have_pv) st->cr(); |
| 0 | 542 } // pvw is cleaned up |
| 543 } // rm is cleaned up | |
| 544 | |
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545 if (ik->bootstrap_method() != NULL) { |
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546 st->print(BULLET"bootstrap method: "); |
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547 ik->bootstrap_method()->print_value_on(st); |
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548 st->cr(); |
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549 } |
| 0 | 550 if (ik->generic_signature() != NULL) { |
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551 st->print(BULLET"generic signature: "); |
| 0 | 552 ik->generic_signature()->print_value_on(st); |
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553 st->cr(); |
| 0 | 554 } |
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555 st->print(BULLET"inner classes: "); ik->inner_classes()->print_value_on(st); st->cr(); |
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556 st->print(BULLET"java mirror: "); ik->java_mirror()->print_value_on(st); st->cr(); |
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557 st->print(BULLET"vtable length %d (start addr: " INTPTR_FORMAT ")", ik->vtable_length(), ik->start_of_vtable()); st->cr(); |
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558 st->print(BULLET"itable length %d (start addr: " INTPTR_FORMAT ")", ik->itable_length(), ik->start_of_itable()); st->cr(); |
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559 st->print_cr(BULLET"---- static fields (%d words):", ik->static_field_size()); |
| 0 | 560 FieldPrinter print_static_field(st); |
| 561 ik->do_local_static_fields(&print_static_field); | |
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562 st->print_cr(BULLET"---- non-static fields (%d words):", ik->nonstatic_field_size()); |
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563 FieldPrinter print_nonstatic_field(st); |
| 0 | 564 ik->do_nonstatic_fields(&print_nonstatic_field); |
| 565 | |
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566 st->print(BULLET"non-static oop maps: "); |
| 0 | 567 OopMapBlock* map = ik->start_of_nonstatic_oop_maps(); |
| 938 | 568 OopMapBlock* end_map = map + ik->nonstatic_oop_map_count(); |
| 0 | 569 while (map < end_map) { |
| 938 | 570 st->print("%d-%d ", map->offset(), map->offset() + heapOopSize*(map->count() - 1)); |
| 0 | 571 map++; |
| 572 } | |
| 573 st->cr(); | |
| 574 } | |
| 575 | |
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576 #endif //PRODUCT |
| 0 | 577 |
| 578 void instanceKlassKlass::oop_print_value_on(oop obj, outputStream* st) { | |
| 579 assert(obj->is_klass(), "must be klass"); | |
| 580 instanceKlass* ik = instanceKlass::cast(klassOop(obj)); | |
| 581 ik->name()->print_value_on(st); | |
| 582 } | |
| 583 | |
| 584 const char* instanceKlassKlass::internal_name() const { | |
| 585 return "{instance class}"; | |
| 586 } | |
| 587 | |
| 588 // Verification | |
| 589 | |
| 590 class VerifyFieldClosure: public OopClosure { | |
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591 protected: |
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592 template <class T> void do_oop_work(T* p) { |
| 0 | 593 guarantee(Universe::heap()->is_in(p), "should be in heap"); |
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594 oop obj = oopDesc::load_decode_heap_oop(p); |
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595 guarantee(obj->is_oop_or_null(), "should be in heap"); |
| 0 | 596 } |
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597 public: |
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598 virtual void do_oop(oop* p) { VerifyFieldClosure::do_oop_work(p); } |
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599 virtual void do_oop(narrowOop* p) { VerifyFieldClosure::do_oop_work(p); } |
| 0 | 600 }; |
| 601 | |
| 602 void instanceKlassKlass::oop_verify_on(oop obj, outputStream* st) { | |
| 603 klassKlass::oop_verify_on(obj, st); | |
| 604 if (!obj->partially_loaded()) { | |
| 605 Thread *thread = Thread::current(); | |
| 606 instanceKlass* ik = instanceKlass::cast(klassOop(obj)); | |
| 607 | |
| 608 #ifndef PRODUCT | |
| 609 // Avoid redundant verifies | |
| 610 if (ik->_verify_count == Universe::verify_count()) return; | |
| 611 ik->_verify_count = Universe::verify_count(); | |
| 612 #endif | |
| 613 // Verify that klass is present in SystemDictionary | |
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614 if (ik->is_loaded() && !ik->is_anonymous()) { |
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615 Symbol* h_name = ik->name(); |
| 0 | 616 Handle h_loader (thread, ik->class_loader()); |
| 617 Handle h_obj(thread, obj); | |
| 618 SystemDictionary::verify_obj_klass_present(h_obj, h_name, h_loader); | |
| 619 } | |
| 620 | |
| 621 // Verify static fields | |
| 622 VerifyFieldClosure blk; | |
| 623 | |
| 624 // Verify vtables | |
| 625 if (ik->is_linked()) { | |
| 626 ResourceMark rm(thread); | |
| 627 // $$$ This used to be done only for m/s collections. Doing it | |
| 628 // always seemed a valid generalization. (DLD -- 6/00) | |
| 629 ik->vtable()->verify(st); | |
| 630 } | |
| 631 | |
| 632 // Verify oop map cache | |
| 633 if (ik->oop_map_cache() != NULL) { | |
| 634 ik->oop_map_cache()->verify(); | |
| 635 } | |
| 636 | |
| 637 // Verify first subklass | |
| 638 if (ik->subklass_oop() != NULL) { | |
| 639 guarantee(ik->subklass_oop()->is_perm(), "should be in permspace"); | |
| 640 guarantee(ik->subklass_oop()->is_klass(), "should be klass"); | |
| 641 } | |
| 642 | |
| 643 // Verify siblings | |
| 644 klassOop super = ik->super(); | |
| 645 Klass* sib = ik->next_sibling(); | |
| 646 int sib_count = 0; | |
| 647 while (sib != NULL) { | |
| 648 if (sib == ik) { | |
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649 fatal(err_msg("subclass cycle of length %d", sib_count)); |
| 0 | 650 } |
| 651 if (sib_count >= 100000) { | |
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652 fatal(err_msg("suspiciously long subclass list %d", sib_count)); |
| 0 | 653 } |
| 654 guarantee(sib->as_klassOop()->is_klass(), "should be klass"); | |
| 655 guarantee(sib->as_klassOop()->is_perm(), "should be in permspace"); | |
| 656 guarantee(sib->super() == super, "siblings should have same superklass"); | |
| 657 sib = sib->next_sibling(); | |
| 658 } | |
| 659 | |
| 660 // Verify implementor fields | |
| 661 bool saw_null_impl = false; | |
| 662 for (int i = 0; i < instanceKlass::implementors_limit; i++) { | |
| 663 klassOop im = ik->implementor(i); | |
| 664 if (im == NULL) { saw_null_impl = true; continue; } | |
| 665 guarantee(!saw_null_impl, "non-nulls must preceded all nulls"); | |
| 666 guarantee(ik->is_interface(), "only interfaces should have implementor set"); | |
| 667 guarantee(i < ik->nof_implementors(), "should only have one implementor"); | |
| 668 guarantee(im->is_perm(), "should be in permspace"); | |
| 669 guarantee(im->is_klass(), "should be klass"); | |
| 670 guarantee(!Klass::cast(klassOop(im))->is_interface(), "implementors cannot be interfaces"); | |
| 671 } | |
| 672 | |
| 673 // Verify local interfaces | |
| 674 objArrayOop local_interfaces = ik->local_interfaces(); | |
| 675 guarantee(local_interfaces->is_perm(), "should be in permspace"); | |
| 676 guarantee(local_interfaces->is_objArray(), "should be obj array"); | |
| 677 int j; | |
| 678 for (j = 0; j < local_interfaces->length(); j++) { | |
| 679 oop e = local_interfaces->obj_at(j); | |
| 680 guarantee(e->is_klass() && Klass::cast(klassOop(e))->is_interface(), "invalid local interface"); | |
| 681 } | |
| 682 | |
| 683 // Verify transitive interfaces | |
| 684 objArrayOop transitive_interfaces = ik->transitive_interfaces(); | |
| 685 guarantee(transitive_interfaces->is_perm(), "should be in permspace"); | |
| 686 guarantee(transitive_interfaces->is_objArray(), "should be obj array"); | |
| 687 for (j = 0; j < transitive_interfaces->length(); j++) { | |
| 688 oop e = transitive_interfaces->obj_at(j); | |
| 689 guarantee(e->is_klass() && Klass::cast(klassOop(e))->is_interface(), "invalid transitive interface"); | |
| 690 } | |
| 691 | |
| 692 // Verify methods | |
| 693 objArrayOop methods = ik->methods(); | |
| 694 guarantee(methods->is_perm(), "should be in permspace"); | |
| 695 guarantee(methods->is_objArray(), "should be obj array"); | |
| 696 for (j = 0; j < methods->length(); j++) { | |
| 697 guarantee(methods->obj_at(j)->is_method(), "non-method in methods array"); | |
| 698 } | |
| 699 for (j = 0; j < methods->length() - 1; j++) { | |
| 700 methodOop m1 = methodOop(methods->obj_at(j)); | |
| 701 methodOop m2 = methodOop(methods->obj_at(j + 1)); | |
| 702 guarantee(m1->name()->fast_compare(m2->name()) <= 0, "methods not sorted correctly"); | |
| 703 } | |
| 704 | |
| 705 // Verify method ordering | |
| 706 typeArrayOop method_ordering = ik->method_ordering(); | |
| 707 guarantee(method_ordering->is_perm(), "should be in permspace"); | |
| 708 guarantee(method_ordering->is_typeArray(), "should be type array"); | |
| 709 int length = method_ordering->length(); | |
| 710 if (JvmtiExport::can_maintain_original_method_order()) { | |
| 711 guarantee(length == methods->length(), "invalid method ordering length"); | |
| 712 jlong sum = 0; | |
| 713 for (j = 0; j < length; j++) { | |
| 714 int original_index = method_ordering->int_at(j); | |
| 715 guarantee(original_index >= 0 && original_index < length, "invalid method ordering index"); | |
| 716 sum += original_index; | |
| 717 } | |
| 718 // Verify sum of indices 0,1,...,length-1 | |
| 719 guarantee(sum == ((jlong)length*(length-1))/2, "invalid method ordering sum"); | |
| 720 } else { | |
| 721 guarantee(length == 0, "invalid method ordering length"); | |
| 722 } | |
| 723 | |
| 724 // Verify JNI static field identifiers | |
| 725 if (ik->jni_ids() != NULL) { | |
| 726 ik->jni_ids()->verify(ik->as_klassOop()); | |
| 727 } | |
| 728 | |
| 729 // Verify other fields | |
| 730 if (ik->array_klasses() != NULL) { | |
| 731 guarantee(ik->array_klasses()->is_perm(), "should be in permspace"); | |
| 732 guarantee(ik->array_klasses()->is_klass(), "should be klass"); | |
| 733 } | |
| 734 guarantee(ik->fields()->is_perm(), "should be in permspace"); | |
| 735 guarantee(ik->fields()->is_typeArray(), "should be type array"); | |
| 736 guarantee(ik->constants()->is_perm(), "should be in permspace"); | |
| 737 guarantee(ik->constants()->is_constantPool(), "should be constant pool"); | |
| 738 guarantee(ik->inner_classes()->is_perm(), "should be in permspace"); | |
| 739 guarantee(ik->inner_classes()->is_typeArray(), "should be type array"); | |
| 740 if (ik->protection_domain() != NULL) { | |
| 741 guarantee(ik->protection_domain()->is_oop(), "should be oop"); | |
| 742 } | |
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743 if (ik->host_klass() != NULL) { |
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744 guarantee(ik->host_klass()->is_oop(), "should be oop"); |
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745 } |
| 0 | 746 if (ik->signers() != NULL) { |
| 747 guarantee(ik->signers()->is_objArray(), "should be obj array"); | |
| 748 } | |
| 749 if (ik->class_annotations() != NULL) { | |
| 750 guarantee(ik->class_annotations()->is_typeArray(), "should be type array"); | |
| 751 } | |
| 752 if (ik->fields_annotations() != NULL) { | |
| 753 guarantee(ik->fields_annotations()->is_objArray(), "should be obj array"); | |
| 754 } | |
| 755 if (ik->methods_annotations() != NULL) { | |
| 756 guarantee(ik->methods_annotations()->is_objArray(), "should be obj array"); | |
| 757 } | |
| 758 if (ik->methods_parameter_annotations() != NULL) { | |
| 759 guarantee(ik->methods_parameter_annotations()->is_objArray(), "should be obj array"); | |
| 760 } | |
| 761 if (ik->methods_default_annotations() != NULL) { | |
| 762 guarantee(ik->methods_default_annotations()->is_objArray(), "should be obj array"); | |
| 763 } | |
| 764 } | |
| 765 } | |
| 766 | |
| 767 | |
| 768 bool instanceKlassKlass::oop_partially_loaded(oop obj) const { | |
| 769 assert(obj->is_klass(), "object must be klass"); | |
| 770 instanceKlass* ik = instanceKlass::cast(klassOop(obj)); | |
| 771 assert(ik->oop_is_instance(), "object must be instanceKlass"); | |
| 772 return ik->transitive_interfaces() == (objArrayOop) obj; // Check whether transitive_interfaces points to self | |
| 773 } | |
| 774 | |
| 775 | |
| 776 // The transitive_interfaces is the last field set when loading an object. | |
| 777 void instanceKlassKlass::oop_set_partially_loaded(oop obj) { | |
| 778 assert(obj->is_klass(), "object must be klass"); | |
| 779 instanceKlass* ik = instanceKlass::cast(klassOop(obj)); | |
| 780 // Set the layout helper to a place-holder value, until fuller initialization. | |
| 781 // (This allows asserts in oop_is_instance to succeed.) | |
| 782 ik->set_layout_helper(Klass::instance_layout_helper(0, true)); | |
| 783 assert(ik->oop_is_instance(), "object must be instanceKlass"); | |
| 784 assert(ik->transitive_interfaces() == NULL, "just checking"); | |
| 785 ik->set_transitive_interfaces((objArrayOop) obj); // Temporarily set transitive_interfaces to point to self | |
| 786 } |