Mercurial > hg > truffle
annotate src/share/vm/oops/instanceKlassKlass.cpp @ 431:a45484ea312d
6653858: dynamic languages need to be able to load anonymous classes
Summary: low-level privileged sun.misc.Unsafe.defineAnonymousClass
Reviewed-by: kvn
| author | jrose |
|---|---|
| date | Wed, 12 Nov 2008 22:33:26 -0800 |
| parents | d1605aabd0a1 |
| children | c89f86385056 |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 196 | 2 * Copyright 1997-2008 Sun Microsystems, Inc. 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 * | |
| 19 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, | |
| 20 * CA 95054 USA or visit www.sun.com if you need additional information or | |
| 21 * have any questions. | |
| 22 * | |
| 23 */ | |
| 24 | |
| 25 # include "incls/_precompiled.incl" | |
| 26 # include "incls/_instanceKlassKlass.cpp.incl" | |
| 27 | |
| 28 klassOop instanceKlassKlass::create_klass(TRAPS) { | |
| 29 instanceKlassKlass o; | |
| 30 KlassHandle h_this_klass(THREAD, Universe::klassKlassObj()); | |
| 31 KlassHandle k = base_create_klass(h_this_klass, header_size(), o.vtbl_value(), CHECK_NULL); | |
| 32 // Make sure size calculation is right | |
| 33 assert(k()->size() == align_object_size(header_size()), "wrong size for object"); | |
| 34 java_lang_Class::create_mirror(k, CHECK_NULL); // Allocate mirror | |
| 35 return k(); | |
| 36 } | |
| 37 | |
| 38 int instanceKlassKlass::oop_size(oop obj) const { | |
| 39 assert(obj->is_klass(), "must be klass"); | |
| 40 return instanceKlass::cast(klassOop(obj))->object_size(); | |
| 41 } | |
| 42 | |
| 43 bool instanceKlassKlass::oop_is_parsable(oop obj) const { | |
| 44 assert(obj->is_klass(), "must be klass"); | |
| 45 instanceKlass* ik = instanceKlass::cast(klassOop(obj)); | |
| 46 return (!ik->null_vtbl()) && ik->object_is_parsable(); | |
| 47 } | |
| 48 | |
| 49 void instanceKlassKlass::iterate_c_heap_oops(instanceKlass* ik, | |
| 50 OopClosure* closure) { | |
| 51 if (ik->oop_map_cache() != NULL) { | |
| 52 ik->oop_map_cache()->oop_iterate(closure); | |
| 53 } | |
| 54 | |
| 55 if (ik->jni_ids() != NULL) { | |
| 56 ik->jni_ids()->oops_do(closure); | |
| 57 } | |
| 58 } | |
| 59 | |
| 60 void instanceKlassKlass::oop_follow_contents(oop obj) { | |
| 61 assert(obj->is_klass(),"must be a klass"); | |
| 62 assert(klassOop(obj)->klass_part()->oop_is_instance_slow(), "must be instance klass"); | |
| 63 | |
| 64 instanceKlass* ik = instanceKlass::cast(klassOop(obj)); | |
| 65 ik->follow_static_fields(); | |
| 66 { | |
| 67 HandleMark hm; | |
| 68 ik->vtable()->oop_follow_contents(); | |
| 69 ik->itable()->oop_follow_contents(); | |
| 70 } | |
| 71 | |
| 72 MarkSweep::mark_and_push(ik->adr_array_klasses()); | |
| 73 MarkSweep::mark_and_push(ik->adr_methods()); | |
| 74 MarkSweep::mark_and_push(ik->adr_method_ordering()); | |
| 75 MarkSweep::mark_and_push(ik->adr_local_interfaces()); | |
| 76 MarkSweep::mark_and_push(ik->adr_transitive_interfaces()); | |
| 77 MarkSweep::mark_and_push(ik->adr_fields()); | |
| 78 MarkSweep::mark_and_push(ik->adr_constants()); | |
| 79 MarkSweep::mark_and_push(ik->adr_class_loader()); | |
| 80 MarkSweep::mark_and_push(ik->adr_source_file_name()); | |
| 81 MarkSweep::mark_and_push(ik->adr_source_debug_extension()); | |
| 82 MarkSweep::mark_and_push(ik->adr_inner_classes()); | |
| 83 MarkSweep::mark_and_push(ik->adr_protection_domain()); | |
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84 MarkSweep::mark_and_push(ik->adr_host_klass()); |
| 0 | 85 MarkSweep::mark_and_push(ik->adr_signers()); |
| 86 MarkSweep::mark_and_push(ik->adr_generic_signature()); | |
| 87 MarkSweep::mark_and_push(ik->adr_class_annotations()); | |
| 88 MarkSweep::mark_and_push(ik->adr_fields_annotations()); | |
| 89 MarkSweep::mark_and_push(ik->adr_methods_annotations()); | |
| 90 MarkSweep::mark_and_push(ik->adr_methods_parameter_annotations()); | |
| 91 MarkSweep::mark_and_push(ik->adr_methods_default_annotations()); | |
| 92 | |
| 93 // We do not follow adr_implementors() here. It is followed later | |
| 94 // in instanceKlass::follow_weak_klass_links() | |
| 95 | |
| 96 klassKlass::oop_follow_contents(obj); | |
| 97 | |
| 98 iterate_c_heap_oops(ik, &MarkSweep::mark_and_push_closure); | |
| 99 } | |
| 100 | |
| 101 #ifndef SERIALGC | |
| 102 void instanceKlassKlass::oop_follow_contents(ParCompactionManager* cm, | |
| 103 oop obj) { | |
| 104 assert(obj->is_klass(),"must be a klass"); | |
| 105 assert(klassOop(obj)->klass_part()->oop_is_instance_slow(), "must be instance klass"); | |
| 106 | |
| 107 instanceKlass* ik = instanceKlass::cast(klassOop(obj)); | |
| 108 ik->follow_static_fields(cm); | |
| 109 ik->vtable()->oop_follow_contents(cm); | |
| 110 ik->itable()->oop_follow_contents(cm); | |
| 111 | |
| 112 PSParallelCompact::mark_and_push(cm, ik->adr_array_klasses()); | |
| 113 PSParallelCompact::mark_and_push(cm, ik->adr_methods()); | |
| 114 PSParallelCompact::mark_and_push(cm, ik->adr_method_ordering()); | |
| 115 PSParallelCompact::mark_and_push(cm, ik->adr_local_interfaces()); | |
| 116 PSParallelCompact::mark_and_push(cm, ik->adr_transitive_interfaces()); | |
| 117 PSParallelCompact::mark_and_push(cm, ik->adr_fields()); | |
| 118 PSParallelCompact::mark_and_push(cm, ik->adr_constants()); | |
| 119 PSParallelCompact::mark_and_push(cm, ik->adr_class_loader()); | |
| 120 PSParallelCompact::mark_and_push(cm, ik->adr_source_file_name()); | |
| 121 PSParallelCompact::mark_and_push(cm, ik->adr_source_debug_extension()); | |
| 122 PSParallelCompact::mark_and_push(cm, ik->adr_inner_classes()); | |
| 123 PSParallelCompact::mark_and_push(cm, ik->adr_protection_domain()); | |
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124 PSParallelCompact::mark_and_push(cm, ik->adr_host_klass()); |
| 0 | 125 PSParallelCompact::mark_and_push(cm, ik->adr_signers()); |
| 126 PSParallelCompact::mark_and_push(cm, ik->adr_generic_signature()); | |
| 127 PSParallelCompact::mark_and_push(cm, ik->adr_class_annotations()); | |
| 128 PSParallelCompact::mark_and_push(cm, ik->adr_fields_annotations()); | |
| 129 PSParallelCompact::mark_and_push(cm, ik->adr_methods_annotations()); | |
| 130 PSParallelCompact::mark_and_push(cm, ik->adr_methods_parameter_annotations()); | |
| 131 PSParallelCompact::mark_and_push(cm, ik->adr_methods_default_annotations()); | |
| 132 | |
| 133 // We do not follow adr_implementor() here. It is followed later | |
| 134 // in instanceKlass::follow_weak_klass_links() | |
| 135 | |
| 136 klassKlass::oop_follow_contents(cm, obj); | |
| 137 | |
| 138 PSParallelCompact::MarkAndPushClosure mark_and_push_closure(cm); | |
| 139 iterate_c_heap_oops(ik, &mark_and_push_closure); | |
| 140 } | |
| 141 #endif // SERIALGC | |
| 142 | |
| 143 int instanceKlassKlass::oop_oop_iterate(oop obj, OopClosure* blk) { | |
| 144 assert(obj->is_klass(),"must be a klass"); | |
| 145 assert(klassOop(obj)->klass_part()->oop_is_instance_slow(), "must be instance klass"); | |
| 146 instanceKlass* ik = instanceKlass::cast(klassOop(obj)); | |
| 147 // Get size before changing pointers. | |
| 148 // Don't call size() or oop_size() since that is a virtual call. | |
| 149 int size = ik->object_size(); | |
| 150 | |
| 151 ik->iterate_static_fields(blk); | |
| 152 ik->vtable()->oop_oop_iterate(blk); | |
| 153 ik->itable()->oop_oop_iterate(blk); | |
| 154 | |
| 155 blk->do_oop(ik->adr_array_klasses()); | |
| 156 blk->do_oop(ik->adr_methods()); | |
| 157 blk->do_oop(ik->adr_method_ordering()); | |
| 158 blk->do_oop(ik->adr_local_interfaces()); | |
| 159 blk->do_oop(ik->adr_transitive_interfaces()); | |
| 160 blk->do_oop(ik->adr_fields()); | |
| 161 blk->do_oop(ik->adr_constants()); | |
| 162 blk->do_oop(ik->adr_class_loader()); | |
| 163 blk->do_oop(ik->adr_protection_domain()); | |
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164 blk->do_oop(ik->adr_host_klass()); |
| 0 | 165 blk->do_oop(ik->adr_signers()); |
| 166 blk->do_oop(ik->adr_source_file_name()); | |
| 167 blk->do_oop(ik->adr_source_debug_extension()); | |
| 168 blk->do_oop(ik->adr_inner_classes()); | |
| 169 for (int i = 0; i < instanceKlass::implementors_limit; i++) { | |
| 170 blk->do_oop(&ik->adr_implementors()[i]); | |
| 171 } | |
| 172 blk->do_oop(ik->adr_generic_signature()); | |
| 173 blk->do_oop(ik->adr_class_annotations()); | |
| 174 blk->do_oop(ik->adr_fields_annotations()); | |
| 175 blk->do_oop(ik->adr_methods_annotations()); | |
| 176 blk->do_oop(ik->adr_methods_parameter_annotations()); | |
| 177 blk->do_oop(ik->adr_methods_default_annotations()); | |
| 178 | |
| 179 klassKlass::oop_oop_iterate(obj, blk); | |
| 180 | |
| 181 if(ik->oop_map_cache() != NULL) ik->oop_map_cache()->oop_iterate(blk); | |
| 182 return size; | |
| 183 } | |
| 184 | |
| 185 int instanceKlassKlass::oop_oop_iterate_m(oop obj, OopClosure* blk, | |
| 186 MemRegion mr) { | |
| 187 assert(obj->is_klass(),"must be a klass"); | |
| 188 assert(klassOop(obj)->klass_part()->oop_is_instance_slow(), "must be instance klass"); | |
| 189 instanceKlass* ik = instanceKlass::cast(klassOop(obj)); | |
| 190 // Get size before changing pointers. | |
| 191 // Don't call size() or oop_size() since that is a virtual call. | |
| 192 int size = ik->object_size(); | |
| 193 | |
| 194 ik->iterate_static_fields(blk, mr); | |
| 195 ik->vtable()->oop_oop_iterate_m(blk, mr); | |
| 196 ik->itable()->oop_oop_iterate_m(blk, mr); | |
| 197 | |
| 198 oop* adr; | |
| 199 adr = ik->adr_array_klasses(); | |
| 200 if (mr.contains(adr)) blk->do_oop(adr); | |
| 201 adr = ik->adr_methods(); | |
| 202 if (mr.contains(adr)) blk->do_oop(adr); | |
| 203 adr = ik->adr_method_ordering(); | |
| 204 if (mr.contains(adr)) blk->do_oop(adr); | |
| 205 adr = ik->adr_local_interfaces(); | |
| 206 if (mr.contains(adr)) blk->do_oop(adr); | |
| 207 adr = ik->adr_transitive_interfaces(); | |
| 208 if (mr.contains(adr)) blk->do_oop(adr); | |
| 209 adr = ik->adr_fields(); | |
| 210 if (mr.contains(adr)) blk->do_oop(adr); | |
| 211 adr = ik->adr_constants(); | |
| 212 if (mr.contains(adr)) blk->do_oop(adr); | |
| 213 adr = ik->adr_class_loader(); | |
| 214 if (mr.contains(adr)) blk->do_oop(adr); | |
| 215 adr = ik->adr_protection_domain(); | |
| 216 if (mr.contains(adr)) blk->do_oop(adr); | |
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217 adr = ik->adr_host_klass(); |
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218 if (mr.contains(adr)) blk->do_oop(adr); |
| 0 | 219 adr = ik->adr_signers(); |
| 220 if (mr.contains(adr)) blk->do_oop(adr); | |
| 221 adr = ik->adr_source_file_name(); | |
| 222 if (mr.contains(adr)) blk->do_oop(adr); | |
| 223 adr = ik->adr_source_debug_extension(); | |
| 224 if (mr.contains(adr)) blk->do_oop(adr); | |
| 225 adr = ik->adr_inner_classes(); | |
| 226 if (mr.contains(adr)) blk->do_oop(adr); | |
| 227 adr = ik->adr_implementors(); | |
| 228 for (int i = 0; i < instanceKlass::implementors_limit; i++) { | |
| 229 if (mr.contains(&adr[i])) blk->do_oop(&adr[i]); | |
| 230 } | |
| 231 adr = ik->adr_generic_signature(); | |
| 232 if (mr.contains(adr)) blk->do_oop(adr); | |
| 233 adr = ik->adr_class_annotations(); | |
| 234 if (mr.contains(adr)) blk->do_oop(adr); | |
| 235 adr = ik->adr_fields_annotations(); | |
| 236 if (mr.contains(adr)) blk->do_oop(adr); | |
| 237 adr = ik->adr_methods_annotations(); | |
| 238 if (mr.contains(adr)) blk->do_oop(adr); | |
| 239 adr = ik->adr_methods_parameter_annotations(); | |
| 240 if (mr.contains(adr)) blk->do_oop(adr); | |
| 241 adr = ik->adr_methods_default_annotations(); | |
| 242 if (mr.contains(adr)) blk->do_oop(adr); | |
| 243 | |
| 244 klassKlass::oop_oop_iterate_m(obj, blk, mr); | |
| 245 | |
| 246 if(ik->oop_map_cache() != NULL) ik->oop_map_cache()->oop_iterate(blk, mr); | |
| 247 return size; | |
| 248 } | |
| 249 | |
| 250 int instanceKlassKlass::oop_adjust_pointers(oop obj) { | |
| 251 assert(obj->is_klass(),"must be a klass"); | |
| 252 assert(klassOop(obj)->klass_part()->oop_is_instance_slow(), "must be instance klass"); | |
| 253 | |
| 254 instanceKlass* ik = instanceKlass::cast(klassOop(obj)); | |
| 255 ik->adjust_static_fields(); | |
| 256 ik->vtable()->oop_adjust_pointers(); | |
| 257 ik->itable()->oop_adjust_pointers(); | |
| 258 | |
| 259 MarkSweep::adjust_pointer(ik->adr_array_klasses()); | |
| 260 MarkSweep::adjust_pointer(ik->adr_methods()); | |
| 261 MarkSweep::adjust_pointer(ik->adr_method_ordering()); | |
| 262 MarkSweep::adjust_pointer(ik->adr_local_interfaces()); | |
| 263 MarkSweep::adjust_pointer(ik->adr_transitive_interfaces()); | |
| 264 MarkSweep::adjust_pointer(ik->adr_fields()); | |
| 265 MarkSweep::adjust_pointer(ik->adr_constants()); | |
| 266 MarkSweep::adjust_pointer(ik->adr_class_loader()); | |
| 267 MarkSweep::adjust_pointer(ik->adr_protection_domain()); | |
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268 MarkSweep::adjust_pointer(ik->adr_host_klass()); |
| 0 | 269 MarkSweep::adjust_pointer(ik->adr_signers()); |
| 270 MarkSweep::adjust_pointer(ik->adr_source_file_name()); | |
| 271 MarkSweep::adjust_pointer(ik->adr_source_debug_extension()); | |
| 272 MarkSweep::adjust_pointer(ik->adr_inner_classes()); | |
| 273 for (int i = 0; i < instanceKlass::implementors_limit; i++) { | |
| 274 MarkSweep::adjust_pointer(&ik->adr_implementors()[i]); | |
| 275 } | |
| 276 MarkSweep::adjust_pointer(ik->adr_generic_signature()); | |
| 277 MarkSweep::adjust_pointer(ik->adr_class_annotations()); | |
| 278 MarkSweep::adjust_pointer(ik->adr_fields_annotations()); | |
| 279 MarkSweep::adjust_pointer(ik->adr_methods_annotations()); | |
| 280 MarkSweep::adjust_pointer(ik->adr_methods_parameter_annotations()); | |
| 281 MarkSweep::adjust_pointer(ik->adr_methods_default_annotations()); | |
| 282 | |
| 283 iterate_c_heap_oops(ik, &MarkSweep::adjust_root_pointer_closure); | |
| 284 | |
| 285 return klassKlass::oop_adjust_pointers(obj); | |
| 286 } | |
| 287 | |
| 288 #ifndef SERIALGC | |
| 289 void instanceKlassKlass::oop_copy_contents(PSPromotionManager* pm, oop obj) { | |
| 290 assert(!pm->depth_first(), "invariant"); | |
| 291 instanceKlass* ik = instanceKlass::cast(klassOop(obj)); | |
| 292 ik->copy_static_fields(pm); | |
| 293 | |
| 294 oop* loader_addr = ik->adr_class_loader(); | |
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295 if (PSScavenge::should_scavenge(loader_addr)) { |
| 0 | 296 pm->claim_or_forward_breadth(loader_addr); |
| 297 } | |
| 298 | |
| 299 oop* pd_addr = ik->adr_protection_domain(); | |
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300 if (PSScavenge::should_scavenge(pd_addr)) { |
| 0 | 301 pm->claim_or_forward_breadth(pd_addr); |
| 302 } | |
| 303 | |
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304 oop* hk_addr = ik->adr_host_klass(); |
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305 if (PSScavenge::should_scavenge(hk_addr)) { |
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306 pm->claim_or_forward_breadth(hk_addr); |
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307 } |
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308 |
| 0 | 309 oop* sg_addr = ik->adr_signers(); |
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310 if (PSScavenge::should_scavenge(sg_addr)) { |
| 0 | 311 pm->claim_or_forward_breadth(sg_addr); |
| 312 } | |
| 313 | |
| 314 klassKlass::oop_copy_contents(pm, obj); | |
| 315 } | |
| 316 | |
| 317 void instanceKlassKlass::oop_push_contents(PSPromotionManager* pm, oop obj) { | |
| 318 assert(pm->depth_first(), "invariant"); | |
| 319 instanceKlass* ik = instanceKlass::cast(klassOop(obj)); | |
| 320 ik->push_static_fields(pm); | |
| 321 | |
| 322 oop* loader_addr = ik->adr_class_loader(); | |
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323 if (PSScavenge::should_scavenge(loader_addr)) { |
| 0 | 324 pm->claim_or_forward_depth(loader_addr); |
| 325 } | |
| 326 | |
| 327 oop* pd_addr = ik->adr_protection_domain(); | |
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328 if (PSScavenge::should_scavenge(pd_addr)) { |
| 0 | 329 pm->claim_or_forward_depth(pd_addr); |
| 330 } | |
| 331 | |
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332 oop* hk_addr = ik->adr_host_klass(); |
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333 if (PSScavenge::should_scavenge(hk_addr)) { |
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334 pm->claim_or_forward_depth(hk_addr); |
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335 } |
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336 |
| 0 | 337 oop* sg_addr = ik->adr_signers(); |
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338 if (PSScavenge::should_scavenge(sg_addr)) { |
| 0 | 339 pm->claim_or_forward_depth(sg_addr); |
| 340 } | |
| 341 | |
| 342 klassKlass::oop_copy_contents(pm, obj); | |
| 343 } | |
| 344 | |
| 345 int instanceKlassKlass::oop_update_pointers(ParCompactionManager* cm, oop obj) { | |
| 346 assert(obj->is_klass(),"must be a klass"); | |
| 347 assert(klassOop(obj)->klass_part()->oop_is_instance_slow(), | |
| 348 "must be instance klass"); | |
| 349 | |
| 350 instanceKlass* ik = instanceKlass::cast(klassOop(obj)); | |
| 351 ik->update_static_fields(); | |
| 352 ik->vtable()->oop_update_pointers(cm); | |
| 353 ik->itable()->oop_update_pointers(cm); | |
| 354 | |
| 355 oop* const beg_oop = ik->oop_block_beg(); | |
| 356 oop* const end_oop = ik->oop_block_end(); | |
| 357 for (oop* cur_oop = beg_oop; cur_oop < end_oop; ++cur_oop) { | |
| 358 PSParallelCompact::adjust_pointer(cur_oop); | |
| 359 } | |
| 360 | |
| 361 OopClosure* closure = PSParallelCompact::adjust_root_pointer_closure(); | |
| 362 iterate_c_heap_oops(ik, closure); | |
| 363 | |
| 364 klassKlass::oop_update_pointers(cm, obj); | |
| 365 return ik->object_size(); | |
| 366 } | |
| 367 | |
| 368 int instanceKlassKlass::oop_update_pointers(ParCompactionManager* cm, oop obj, | |
| 369 HeapWord* beg_addr, | |
| 370 HeapWord* end_addr) { | |
| 371 assert(obj->is_klass(),"must be a klass"); | |
| 372 assert(klassOop(obj)->klass_part()->oop_is_instance_slow(), | |
| 373 "must be instance klass"); | |
| 374 | |
| 375 instanceKlass* ik = instanceKlass::cast(klassOop(obj)); | |
| 376 ik->update_static_fields(beg_addr, end_addr); | |
| 377 ik->vtable()->oop_update_pointers(cm, beg_addr, end_addr); | |
| 378 ik->itable()->oop_update_pointers(cm, beg_addr, end_addr); | |
| 379 | |
| 380 oop* const beg_oop = MAX2((oop*)beg_addr, ik->oop_block_beg()); | |
| 381 oop* const end_oop = MIN2((oop*)end_addr, ik->oop_block_end()); | |
| 382 for (oop* cur_oop = beg_oop; cur_oop < end_oop; ++cur_oop) { | |
| 383 PSParallelCompact::adjust_pointer(cur_oop); | |
| 384 } | |
| 385 | |
| 386 // The oop_map_cache, jni_ids and jni_id_map are allocated from the C heap, | |
| 387 // and so don't lie within any 'Chunk' boundaries. Update them when the | |
| 388 // lowest addressed oop in the instanceKlass 'oop_block' is updated. | |
| 389 if (beg_oop == ik->oop_block_beg()) { | |
| 390 OopClosure* closure = PSParallelCompact::adjust_root_pointer_closure(); | |
| 391 iterate_c_heap_oops(ik, closure); | |
| 392 } | |
| 393 | |
| 394 klassKlass::oop_update_pointers(cm, obj, beg_addr, end_addr); | |
| 395 return ik->object_size(); | |
| 396 } | |
| 397 #endif // SERIALGC | |
| 398 | |
| 399 klassOop instanceKlassKlass::allocate_instance_klass(int vtable_len, int itable_len, int static_field_size, | |
| 400 int nonstatic_oop_map_size, ReferenceType rt, TRAPS) { | |
| 401 | |
| 402 int size = instanceKlass::object_size(align_object_offset(vtable_len) + align_object_offset(itable_len) + static_field_size + nonstatic_oop_map_size); | |
| 403 | |
| 404 // Allocation | |
| 405 KlassHandle h_this_klass(THREAD, as_klassOop()); | |
| 406 KlassHandle k; | |
| 407 if (rt == REF_NONE) { | |
| 408 // regular klass | |
| 409 instanceKlass o; | |
| 410 k = base_create_klass(h_this_klass, size, o.vtbl_value(), CHECK_NULL); | |
| 411 } else { | |
| 412 // reference klass | |
| 413 instanceRefKlass o; | |
| 414 k = base_create_klass(h_this_klass, size, o.vtbl_value(), CHECK_NULL); | |
| 415 } | |
| 416 { | |
| 417 No_Safepoint_Verifier no_safepoint; // until k becomes parsable | |
| 418 instanceKlass* ik = (instanceKlass*) k()->klass_part(); | |
| 419 assert(!k()->is_parsable(), "not expecting parsability yet."); | |
| 420 | |
| 421 // The sizes of these these three variables are used for determining the | |
| 422 // size of the instanceKlassOop. It is critical that these are set to the right | |
| 423 // sizes before the first GC, i.e., when we allocate the mirror. | |
| 424 ik->set_vtable_length(vtable_len); | |
| 425 ik->set_itable_length(itable_len); | |
| 426 ik->set_static_field_size(static_field_size); | |
| 427 ik->set_nonstatic_oop_map_size(nonstatic_oop_map_size); | |
| 428 assert(k()->size() == size, "wrong size for object"); | |
| 429 | |
| 430 ik->set_array_klasses(NULL); | |
| 431 ik->set_methods(NULL); | |
| 432 ik->set_method_ordering(NULL); | |
| 433 ik->set_local_interfaces(NULL); | |
| 434 ik->set_transitive_interfaces(NULL); | |
| 435 ik->init_implementor(); | |
| 436 ik->set_fields(NULL); | |
| 437 ik->set_constants(NULL); | |
| 438 ik->set_class_loader(NULL); | |
| 439 ik->set_protection_domain(NULL); | |
|
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440 ik->set_host_klass(NULL); |
| 0 | 441 ik->set_signers(NULL); |
| 442 ik->set_source_file_name(NULL); | |
| 443 ik->set_source_debug_extension(NULL); | |
| 444 ik->set_inner_classes(NULL); | |
| 445 ik->set_static_oop_field_size(0); | |
| 446 ik->set_nonstatic_field_size(0); | |
| 447 ik->set_is_marked_dependent(false); | |
| 448 ik->set_init_state(instanceKlass::allocated); | |
| 449 ik->set_init_thread(NULL); | |
| 450 ik->set_reference_type(rt); | |
| 451 ik->set_oop_map_cache(NULL); | |
| 452 ik->set_jni_ids(NULL); | |
| 453 ik->set_osr_nmethods_head(NULL); | |
| 454 ik->set_breakpoints(NULL); | |
| 455 ik->init_previous_versions(); | |
| 456 ik->set_generic_signature(NULL); | |
| 457 ik->release_set_methods_jmethod_ids(NULL); | |
| 458 ik->release_set_methods_cached_itable_indices(NULL); | |
| 459 ik->set_class_annotations(NULL); | |
| 460 ik->set_fields_annotations(NULL); | |
| 461 ik->set_methods_annotations(NULL); | |
| 462 ik->set_methods_parameter_annotations(NULL); | |
| 463 ik->set_methods_default_annotations(NULL); | |
| 464 ik->set_enclosing_method_indices(0, 0); | |
| 465 ik->set_jvmti_cached_class_field_map(NULL); | |
| 466 ik->set_initial_method_idnum(0); | |
| 467 assert(k()->is_parsable(), "should be parsable here."); | |
| 468 | |
| 469 // initialize the non-header words to zero | |
| 470 intptr_t* p = (intptr_t*)k(); | |
| 471 for (int index = instanceKlass::header_size(); index < size; index++) { | |
| 472 p[index] = NULL_WORD; | |
| 473 } | |
| 474 | |
| 475 // To get verify to work - must be set to partial loaded before first GC point. | |
| 476 k()->set_partially_loaded(); | |
| 477 } | |
| 478 | |
| 479 // GC can happen here | |
| 480 java_lang_Class::create_mirror(k, CHECK_NULL); // Allocate mirror | |
| 481 return k(); | |
| 482 } | |
| 483 | |
| 484 | |
| 485 | |
| 486 #ifndef PRODUCT | |
| 487 | |
| 488 // Printing | |
| 489 | |
| 490 static const char* state_names[] = { | |
| 491 "unparseable_by_gc", "allocated", "loaded", "linked", "being_initialized", "fully_initialized", "initialization_error" | |
| 492 }; | |
| 493 | |
| 494 | |
| 495 void instanceKlassKlass::oop_print_on(oop obj, outputStream* st) { | |
| 496 assert(obj->is_klass(), "must be klass"); | |
| 497 instanceKlass* ik = instanceKlass::cast(klassOop(obj)); | |
| 498 klassKlass::oop_print_on(obj, st); | |
| 499 | |
| 500 st->print(" - instance size: %d", ik->size_helper()); st->cr(); | |
| 501 st->print(" - klass size: %d", ik->object_size()); st->cr(); | |
| 502 st->print(" - access: "); ik->access_flags().print_on(st); st->cr(); | |
| 503 st->print(" - state: "); st->print_cr(state_names[ik->_init_state]); | |
| 504 st->print(" - name: "); ik->name()->print_value_on(st); st->cr(); | |
| 505 st->print(" - super: "); ik->super()->print_value_on(st); st->cr(); | |
| 506 st->print(" - sub: "); | |
| 507 Klass* sub = ik->subklass(); | |
| 508 int n; | |
| 509 for (n = 0; sub != NULL; n++, sub = sub->next_sibling()) { | |
| 510 if (n < MaxSubklassPrintSize) { | |
| 511 sub->as_klassOop()->print_value_on(st); | |
| 512 st->print(" "); | |
| 513 } | |
| 514 } | |
| 515 if (n >= MaxSubklassPrintSize) st->print("(%d more klasses...)", n - MaxSubklassPrintSize); | |
| 516 st->cr(); | |
| 517 | |
| 518 if (ik->is_interface()) { | |
| 519 st->print_cr(" - nof implementors: %d", ik->nof_implementors()); | |
| 520 int print_impl = 0; | |
| 521 for (int i = 0; i < instanceKlass::implementors_limit; i++) { | |
| 522 if (ik->implementor(i) != NULL) { | |
| 523 if (++print_impl == 1) | |
| 524 st->print_cr(" - implementor: "); | |
| 525 st->print(" "); | |
| 526 ik->implementor(i)->print_value_on(st); | |
| 527 } | |
| 528 } | |
| 529 if (print_impl > 0) st->cr(); | |
| 530 } | |
| 531 | |
| 532 st->print(" - arrays: "); ik->array_klasses()->print_value_on(st); st->cr(); | |
| 533 st->print(" - methods: "); ik->methods()->print_value_on(st); st->cr(); | |
| 534 if (Verbose) { | |
| 535 objArrayOop methods = ik->methods(); | |
| 536 for(int i = 0; i < methods->length(); i++) { | |
| 537 tty->print("%d : ", i); methods->obj_at(i)->print_value(); tty->cr(); | |
| 538 } | |
| 539 } | |
| 540 st->print(" - method ordering: "); ik->method_ordering()->print_value_on(st); st->cr(); | |
| 541 st->print(" - local interfaces: "); ik->local_interfaces()->print_value_on(st); st->cr(); | |
| 542 st->print(" - trans. interfaces: "); ik->transitive_interfaces()->print_value_on(st); st->cr(); | |
| 543 st->print(" - constants: "); ik->constants()->print_value_on(st); st->cr(); | |
| 544 st->print(" - class loader: "); ik->class_loader()->print_value_on(st); st->cr(); | |
| 545 st->print(" - protection domain: "); ik->protection_domain()->print_value_on(st); st->cr(); | |
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546 st->print(" - host class: "); ik->host_klass()->print_value_on(st); st->cr(); |
| 0 | 547 st->print(" - signers: "); ik->signers()->print_value_on(st); st->cr(); |
| 548 if (ik->source_file_name() != NULL) { | |
| 549 st->print(" - source file: "); | |
| 550 ik->source_file_name()->print_value_on(st); | |
| 551 st->cr(); | |
| 552 } | |
| 553 if (ik->source_debug_extension() != NULL) { | |
| 554 st->print(" - source debug extension: "); | |
| 555 ik->source_debug_extension()->print_value_on(st); | |
| 556 st->cr(); | |
| 557 } | |
| 558 | |
| 559 st->print_cr(" - previous version: "); | |
| 560 { | |
| 561 ResourceMark rm; | |
| 562 // PreviousVersionInfo objects returned via PreviousVersionWalker | |
| 563 // contain a GrowableArray of handles. We have to clean up the | |
| 564 // GrowableArray _after_ the PreviousVersionWalker destructor | |
| 565 // has destroyed the handles. | |
| 566 { | |
| 567 PreviousVersionWalker pvw(ik); | |
| 568 for (PreviousVersionInfo * pv_info = pvw.next_previous_version(); | |
| 569 pv_info != NULL; pv_info = pvw.next_previous_version()) { | |
| 570 pv_info->prev_constant_pool_handle()()->print_value_on(st); | |
| 571 } | |
| 572 st->cr(); | |
| 573 } // pvw is cleaned up | |
| 574 } // rm is cleaned up | |
| 575 | |
| 576 if (ik->generic_signature() != NULL) { | |
| 577 st->print(" - generic signature: "); | |
| 578 ik->generic_signature()->print_value_on(st); | |
| 579 } | |
| 580 st->print(" - inner classes: "); ik->inner_classes()->print_value_on(st); st->cr(); | |
| 581 st->print(" - java mirror: "); ik->java_mirror()->print_value_on(st); st->cr(); | |
| 582 st->print(" - vtable length %d (start addr: " INTPTR_FORMAT ")", ik->vtable_length(), ik->start_of_vtable()); st->cr(); | |
| 583 st->print(" - itable length %d (start addr: " INTPTR_FORMAT ")", ik->itable_length(), ik->start_of_itable()); st->cr(); | |
| 584 st->print_cr(" - static fields:"); | |
| 585 FieldPrinter print_static_field(st); | |
| 586 ik->do_local_static_fields(&print_static_field); | |
| 587 st->print_cr(" - non-static fields:"); | |
| 588 FieldPrinter print_nonstatic_field(st, obj); | |
| 589 ik->do_nonstatic_fields(&print_nonstatic_field); | |
| 590 | |
| 591 st->print(" - static oop maps: "); | |
| 592 if (ik->static_oop_field_size() > 0) { | |
| 593 int first_offset = ik->offset_of_static_fields(); | |
| 594 st->print("%d-%d", first_offset, first_offset + ik->static_oop_field_size() - 1); | |
| 595 } | |
| 596 st->cr(); | |
| 597 | |
| 598 st->print(" - non-static oop maps: "); | |
| 599 OopMapBlock* map = ik->start_of_nonstatic_oop_maps(); | |
| 600 OopMapBlock* end_map = map + ik->nonstatic_oop_map_size(); | |
| 601 while (map < end_map) { | |
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602 st->print("%d-%d ", map->offset(), map->offset() + heapOopSize*(map->length() - 1)); |
| 0 | 603 map++; |
| 604 } | |
| 605 st->cr(); | |
| 606 } | |
| 607 | |
| 608 | |
| 609 void instanceKlassKlass::oop_print_value_on(oop obj, outputStream* st) { | |
| 610 assert(obj->is_klass(), "must be klass"); | |
| 611 instanceKlass* ik = instanceKlass::cast(klassOop(obj)); | |
| 612 ik->name()->print_value_on(st); | |
| 613 } | |
| 614 | |
| 615 #endif // PRODUCT | |
| 616 | |
| 617 const char* instanceKlassKlass::internal_name() const { | |
| 618 return "{instance class}"; | |
| 619 } | |
| 620 | |
| 621 // Verification | |
| 622 | |
| 623 class VerifyFieldClosure: public OopClosure { | |
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624 protected: |
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625 template <class T> void do_oop_work(T* p) { |
| 0 | 626 guarantee(Universe::heap()->is_in(p), "should be in heap"); |
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627 oop obj = oopDesc::load_decode_heap_oop(p); |
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628 guarantee(obj->is_oop_or_null(), "should be in heap"); |
| 0 | 629 } |
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630 public: |
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631 virtual void do_oop(oop* p) { VerifyFieldClosure::do_oop_work(p); } |
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632 virtual void do_oop(narrowOop* p) { VerifyFieldClosure::do_oop_work(p); } |
| 0 | 633 }; |
| 634 | |
| 635 void instanceKlassKlass::oop_verify_on(oop obj, outputStream* st) { | |
| 636 klassKlass::oop_verify_on(obj, st); | |
| 637 if (!obj->partially_loaded()) { | |
| 638 Thread *thread = Thread::current(); | |
| 639 instanceKlass* ik = instanceKlass::cast(klassOop(obj)); | |
| 640 | |
| 641 #ifndef PRODUCT | |
| 642 // Avoid redundant verifies | |
| 643 if (ik->_verify_count == Universe::verify_count()) return; | |
| 644 ik->_verify_count = Universe::verify_count(); | |
| 645 #endif | |
| 646 // Verify that klass is present in SystemDictionary | |
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647 if (ik->is_loaded() && !ik->is_anonymous()) { |
| 0 | 648 symbolHandle h_name (thread, ik->name()); |
| 649 Handle h_loader (thread, ik->class_loader()); | |
| 650 Handle h_obj(thread, obj); | |
| 651 SystemDictionary::verify_obj_klass_present(h_obj, h_name, h_loader); | |
| 652 } | |
| 653 | |
| 654 // Verify static fields | |
| 655 VerifyFieldClosure blk; | |
| 656 ik->iterate_static_fields(&blk); | |
| 657 | |
| 658 // Verify vtables | |
| 659 if (ik->is_linked()) { | |
| 660 ResourceMark rm(thread); | |
| 661 // $$$ This used to be done only for m/s collections. Doing it | |
| 662 // always seemed a valid generalization. (DLD -- 6/00) | |
| 663 ik->vtable()->verify(st); | |
| 664 } | |
| 665 | |
| 666 // Verify oop map cache | |
| 667 if (ik->oop_map_cache() != NULL) { | |
| 668 ik->oop_map_cache()->verify(); | |
| 669 } | |
| 670 | |
| 671 // Verify first subklass | |
| 672 if (ik->subklass_oop() != NULL) { | |
| 673 guarantee(ik->subklass_oop()->is_perm(), "should be in permspace"); | |
| 674 guarantee(ik->subklass_oop()->is_klass(), "should be klass"); | |
| 675 } | |
| 676 | |
| 677 // Verify siblings | |
| 678 klassOop super = ik->super(); | |
| 679 Klass* sib = ik->next_sibling(); | |
| 680 int sib_count = 0; | |
| 681 while (sib != NULL) { | |
| 682 if (sib == ik) { | |
| 683 fatal1("subclass cycle of length %d", sib_count); | |
| 684 } | |
| 685 if (sib_count >= 100000) { | |
| 686 fatal1("suspiciously long subclass list %d", sib_count); | |
| 687 } | |
| 688 guarantee(sib->as_klassOop()->is_klass(), "should be klass"); | |
| 689 guarantee(sib->as_klassOop()->is_perm(), "should be in permspace"); | |
| 690 guarantee(sib->super() == super, "siblings should have same superklass"); | |
| 691 sib = sib->next_sibling(); | |
| 692 } | |
| 693 | |
| 694 // Verify implementor fields | |
| 695 bool saw_null_impl = false; | |
| 696 for (int i = 0; i < instanceKlass::implementors_limit; i++) { | |
| 697 klassOop im = ik->implementor(i); | |
| 698 if (im == NULL) { saw_null_impl = true; continue; } | |
| 699 guarantee(!saw_null_impl, "non-nulls must preceded all nulls"); | |
| 700 guarantee(ik->is_interface(), "only interfaces should have implementor set"); | |
| 701 guarantee(i < ik->nof_implementors(), "should only have one implementor"); | |
| 702 guarantee(im->is_perm(), "should be in permspace"); | |
| 703 guarantee(im->is_klass(), "should be klass"); | |
| 704 guarantee(!Klass::cast(klassOop(im))->is_interface(), "implementors cannot be interfaces"); | |
| 705 } | |
| 706 | |
| 707 // Verify local interfaces | |
| 708 objArrayOop local_interfaces = ik->local_interfaces(); | |
| 709 guarantee(local_interfaces->is_perm(), "should be in permspace"); | |
| 710 guarantee(local_interfaces->is_objArray(), "should be obj array"); | |
| 711 int j; | |
| 712 for (j = 0; j < local_interfaces->length(); j++) { | |
| 713 oop e = local_interfaces->obj_at(j); | |
| 714 guarantee(e->is_klass() && Klass::cast(klassOop(e))->is_interface(), "invalid local interface"); | |
| 715 } | |
| 716 | |
| 717 // Verify transitive interfaces | |
| 718 objArrayOop transitive_interfaces = ik->transitive_interfaces(); | |
| 719 guarantee(transitive_interfaces->is_perm(), "should be in permspace"); | |
| 720 guarantee(transitive_interfaces->is_objArray(), "should be obj array"); | |
| 721 for (j = 0; j < transitive_interfaces->length(); j++) { | |
| 722 oop e = transitive_interfaces->obj_at(j); | |
| 723 guarantee(e->is_klass() && Klass::cast(klassOop(e))->is_interface(), "invalid transitive interface"); | |
| 724 } | |
| 725 | |
| 726 // Verify methods | |
| 727 objArrayOop methods = ik->methods(); | |
| 728 guarantee(methods->is_perm(), "should be in permspace"); | |
| 729 guarantee(methods->is_objArray(), "should be obj array"); | |
| 730 for (j = 0; j < methods->length(); j++) { | |
| 731 guarantee(methods->obj_at(j)->is_method(), "non-method in methods array"); | |
| 732 } | |
| 733 for (j = 0; j < methods->length() - 1; j++) { | |
| 734 methodOop m1 = methodOop(methods->obj_at(j)); | |
| 735 methodOop m2 = methodOop(methods->obj_at(j + 1)); | |
| 736 guarantee(m1->name()->fast_compare(m2->name()) <= 0, "methods not sorted correctly"); | |
| 737 } | |
| 738 | |
| 739 // Verify method ordering | |
| 740 typeArrayOop method_ordering = ik->method_ordering(); | |
| 741 guarantee(method_ordering->is_perm(), "should be in permspace"); | |
| 742 guarantee(method_ordering->is_typeArray(), "should be type array"); | |
| 743 int length = method_ordering->length(); | |
| 744 if (JvmtiExport::can_maintain_original_method_order()) { | |
| 745 guarantee(length == methods->length(), "invalid method ordering length"); | |
| 746 jlong sum = 0; | |
| 747 for (j = 0; j < length; j++) { | |
| 748 int original_index = method_ordering->int_at(j); | |
| 749 guarantee(original_index >= 0 && original_index < length, "invalid method ordering index"); | |
| 750 sum += original_index; | |
| 751 } | |
| 752 // Verify sum of indices 0,1,...,length-1 | |
| 753 guarantee(sum == ((jlong)length*(length-1))/2, "invalid method ordering sum"); | |
| 754 } else { | |
| 755 guarantee(length == 0, "invalid method ordering length"); | |
| 756 } | |
| 757 | |
| 758 // Verify JNI static field identifiers | |
| 759 if (ik->jni_ids() != NULL) { | |
| 760 ik->jni_ids()->verify(ik->as_klassOop()); | |
| 761 } | |
| 762 | |
| 763 // Verify other fields | |
| 764 if (ik->array_klasses() != NULL) { | |
| 765 guarantee(ik->array_klasses()->is_perm(), "should be in permspace"); | |
| 766 guarantee(ik->array_klasses()->is_klass(), "should be klass"); | |
| 767 } | |
| 768 guarantee(ik->fields()->is_perm(), "should be in permspace"); | |
| 769 guarantee(ik->fields()->is_typeArray(), "should be type array"); | |
| 770 guarantee(ik->constants()->is_perm(), "should be in permspace"); | |
| 771 guarantee(ik->constants()->is_constantPool(), "should be constant pool"); | |
| 772 guarantee(ik->inner_classes()->is_perm(), "should be in permspace"); | |
| 773 guarantee(ik->inner_classes()->is_typeArray(), "should be type array"); | |
| 774 if (ik->source_file_name() != NULL) { | |
| 775 guarantee(ik->source_file_name()->is_perm(), "should be in permspace"); | |
| 776 guarantee(ik->source_file_name()->is_symbol(), "should be symbol"); | |
| 777 } | |
| 778 if (ik->source_debug_extension() != NULL) { | |
| 779 guarantee(ik->source_debug_extension()->is_perm(), "should be in permspace"); | |
| 780 guarantee(ik->source_debug_extension()->is_symbol(), "should be symbol"); | |
| 781 } | |
| 782 if (ik->protection_domain() != NULL) { | |
| 783 guarantee(ik->protection_domain()->is_oop(), "should be oop"); | |
| 784 } | |
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785 if (ik->host_klass() != NULL) { |
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786 guarantee(ik->host_klass()->is_oop(), "should be oop"); |
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a45484ea312d
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
196
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changeset
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787 } |
| 0 | 788 if (ik->signers() != NULL) { |
| 789 guarantee(ik->signers()->is_objArray(), "should be obj array"); | |
| 790 } | |
| 791 if (ik->generic_signature() != NULL) { | |
| 792 guarantee(ik->generic_signature()->is_perm(), "should be in permspace"); | |
| 793 guarantee(ik->generic_signature()->is_symbol(), "should be symbol"); | |
| 794 } | |
| 795 if (ik->class_annotations() != NULL) { | |
| 796 guarantee(ik->class_annotations()->is_typeArray(), "should be type array"); | |
| 797 } | |
| 798 if (ik->fields_annotations() != NULL) { | |
| 799 guarantee(ik->fields_annotations()->is_objArray(), "should be obj array"); | |
| 800 } | |
| 801 if (ik->methods_annotations() != NULL) { | |
| 802 guarantee(ik->methods_annotations()->is_objArray(), "should be obj array"); | |
| 803 } | |
| 804 if (ik->methods_parameter_annotations() != NULL) { | |
| 805 guarantee(ik->methods_parameter_annotations()->is_objArray(), "should be obj array"); | |
| 806 } | |
| 807 if (ik->methods_default_annotations() != NULL) { | |
| 808 guarantee(ik->methods_default_annotations()->is_objArray(), "should be obj array"); | |
| 809 } | |
| 810 } | |
| 811 } | |
| 812 | |
| 813 | |
| 814 bool instanceKlassKlass::oop_partially_loaded(oop obj) const { | |
| 815 assert(obj->is_klass(), "object must be klass"); | |
| 816 instanceKlass* ik = instanceKlass::cast(klassOop(obj)); | |
| 817 assert(ik->oop_is_instance(), "object must be instanceKlass"); | |
| 818 return ik->transitive_interfaces() == (objArrayOop) obj; // Check whether transitive_interfaces points to self | |
| 819 } | |
| 820 | |
| 821 | |
| 822 // The transitive_interfaces is the last field set when loading an object. | |
| 823 void instanceKlassKlass::oop_set_partially_loaded(oop obj) { | |
| 824 assert(obj->is_klass(), "object must be klass"); | |
| 825 instanceKlass* ik = instanceKlass::cast(klassOop(obj)); | |
| 826 // Set the layout helper to a place-holder value, until fuller initialization. | |
| 827 // (This allows asserts in oop_is_instance to succeed.) | |
| 828 ik->set_layout_helper(Klass::instance_layout_helper(0, true)); | |
| 829 assert(ik->oop_is_instance(), "object must be instanceKlass"); | |
| 830 assert(ik->transitive_interfaces() == NULL, "just checking"); | |
| 831 ik->set_transitive_interfaces((objArrayOop) obj); // Temporarily set transitive_interfaces to point to self | |
| 832 } |