Mercurial > jdk8-mips64-public > hotspot / file revision
src/share/vm/oops/instanceKlassKlass.cpp@8033953d67ff
src/share/vm/oops/instanceKlassKlass.cpp
Fri, 11 Mar 2011 22:34:57 -0800
- author
- jrose
- date
- Fri, 11 Mar 2011 22:34:57 -0800
- changeset 2639
- 8033953d67ff
- parent 2534
- e5383553fd4e
- child 2658
- c7f3d0b4570f
- permissions
- -rw-r--r--
7012648: move JSR 292 to package java.lang.invoke and adjust names
Summary: package and class renaming only; delete unused methods and classes
Reviewed-by: twisti
1 /*
2 * Copyright (c) 1997, 2011, Oracle and/or its affiliates. All rights reserved.
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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 *
23 */
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/symbol.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
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 }
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 }
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 }
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 }
79 if (ik->jni_ids() != NULL) {
80 ik->jni_ids()->oops_do(closure);
81 }
82 }
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");
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 }
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());
106 MarkSweep::mark_and_push(ik->adr_host_klass());
107 MarkSweep::mark_and_push(ik->adr_signers());
108 MarkSweep::mark_and_push(ik->adr_bootstrap_method());
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());
115 // We do not follow adr_implementors() here. It is followed later
116 // in instanceKlass::follow_weak_klass_links()
118 klassKlass::oop_follow_contents(obj);
120 iterate_c_heap_oops(ik, &MarkSweep::mark_and_push_closure);
121 }
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");
129 instanceKlass* ik = instanceKlass::cast(klassOop(obj));
130 ik->follow_static_fields(cm);
131 ik->vtable()->oop_follow_contents(cm);
132 ik->itable()->oop_follow_contents(cm);
134 PSParallelCompact::mark_and_push(cm, ik->adr_array_klasses());
135 PSParallelCompact::mark_and_push(cm, ik->adr_methods());
136 PSParallelCompact::mark_and_push(cm, ik->adr_method_ordering());
137 PSParallelCompact::mark_and_push(cm, ik->adr_local_interfaces());
138 PSParallelCompact::mark_and_push(cm, ik->adr_transitive_interfaces());
139 PSParallelCompact::mark_and_push(cm, ik->adr_fields());
140 PSParallelCompact::mark_and_push(cm, ik->adr_constants());
141 PSParallelCompact::mark_and_push(cm, ik->adr_class_loader());
142 PSParallelCompact::mark_and_push(cm, ik->adr_inner_classes());
143 PSParallelCompact::mark_and_push(cm, ik->adr_protection_domain());
144 PSParallelCompact::mark_and_push(cm, ik->adr_host_klass());
145 PSParallelCompact::mark_and_push(cm, ik->adr_signers());
146 PSParallelCompact::mark_and_push(cm, ik->adr_bootstrap_method());
147 PSParallelCompact::mark_and_push(cm, ik->adr_class_annotations());
148 PSParallelCompact::mark_and_push(cm, ik->adr_fields_annotations());
149 PSParallelCompact::mark_and_push(cm, ik->adr_methods_annotations());
150 PSParallelCompact::mark_and_push(cm, ik->adr_methods_parameter_annotations());
151 PSParallelCompact::mark_and_push(cm, ik->adr_methods_default_annotations());
153 // We do not follow adr_implementor() here. It is followed later
154 // in instanceKlass::follow_weak_klass_links()
156 klassKlass::oop_follow_contents(cm, obj);
158 PSParallelCompact::MarkAndPushClosure mark_and_push_closure(cm);
159 iterate_c_heap_oops(ik, &mark_and_push_closure);
160 }
161 #endif // SERIALGC
163 int instanceKlassKlass::oop_oop_iterate(oop obj, OopClosure* blk) {
164 assert(obj->is_klass(),"must be a klass");
165 assert(klassOop(obj)->klass_part()->oop_is_instance_slow(), "must be instance klass");
166 instanceKlass* ik = instanceKlass::cast(klassOop(obj));
167 // Get size before changing pointers.
168 // Don't call size() or oop_size() since that is a virtual call.
169 int size = ik->object_size();
171 ik->iterate_static_fields(blk);
172 ik->vtable()->oop_oop_iterate(blk);
173 ik->itable()->oop_oop_iterate(blk);
175 blk->do_oop(ik->adr_array_klasses());
176 blk->do_oop(ik->adr_methods());
177 blk->do_oop(ik->adr_method_ordering());
178 blk->do_oop(ik->adr_local_interfaces());
179 blk->do_oop(ik->adr_transitive_interfaces());
180 blk->do_oop(ik->adr_fields());
181 blk->do_oop(ik->adr_constants());
182 blk->do_oop(ik->adr_class_loader());
183 blk->do_oop(ik->adr_protection_domain());
184 blk->do_oop(ik->adr_host_klass());
185 blk->do_oop(ik->adr_signers());
186 blk->do_oop(ik->adr_inner_classes());
187 for (int i = 0; i < instanceKlass::implementors_limit; i++) {
188 blk->do_oop(&ik->adr_implementors()[i]);
189 }
190 blk->do_oop(ik->adr_bootstrap_method());
191 blk->do_oop(ik->adr_class_annotations());
192 blk->do_oop(ik->adr_fields_annotations());
193 blk->do_oop(ik->adr_methods_annotations());
194 blk->do_oop(ik->adr_methods_parameter_annotations());
195 blk->do_oop(ik->adr_methods_default_annotations());
197 klassKlass::oop_oop_iterate(obj, blk);
199 if(ik->oop_map_cache() != NULL) ik->oop_map_cache()->oop_iterate(blk);
200 return size;
201 }
203 int instanceKlassKlass::oop_oop_iterate_m(oop obj, OopClosure* blk,
204 MemRegion mr) {
205 assert(obj->is_klass(),"must be a klass");
206 assert(klassOop(obj)->klass_part()->oop_is_instance_slow(), "must be instance klass");
207 instanceKlass* ik = instanceKlass::cast(klassOop(obj));
208 // Get size before changing pointers.
209 // Don't call size() or oop_size() since that is a virtual call.
210 int size = ik->object_size();
212 ik->iterate_static_fields(blk, mr);
213 ik->vtable()->oop_oop_iterate_m(blk, mr);
214 ik->itable()->oop_oop_iterate_m(blk, mr);
216 oop* adr;
217 adr = ik->adr_array_klasses();
218 if (mr.contains(adr)) blk->do_oop(adr);
219 adr = ik->adr_methods();
220 if (mr.contains(adr)) blk->do_oop(adr);
221 adr = ik->adr_method_ordering();
222 if (mr.contains(adr)) blk->do_oop(adr);
223 adr = ik->adr_local_interfaces();
224 if (mr.contains(adr)) blk->do_oop(adr);
225 adr = ik->adr_transitive_interfaces();
226 if (mr.contains(adr)) blk->do_oop(adr);
227 adr = ik->adr_fields();
228 if (mr.contains(adr)) blk->do_oop(adr);
229 adr = ik->adr_constants();
230 if (mr.contains(adr)) blk->do_oop(adr);
231 adr = ik->adr_class_loader();
232 if (mr.contains(adr)) blk->do_oop(adr);
233 adr = ik->adr_protection_domain();
234 if (mr.contains(adr)) blk->do_oop(adr);
235 adr = ik->adr_host_klass();
236 if (mr.contains(adr)) blk->do_oop(adr);
237 adr = ik->adr_signers();
238 if (mr.contains(adr)) blk->do_oop(adr);
239 adr = ik->adr_inner_classes();
240 if (mr.contains(adr)) blk->do_oop(adr);
241 adr = ik->adr_implementors();
242 for (int i = 0; i < instanceKlass::implementors_limit; i++) {
243 if (mr.contains(&adr[i])) blk->do_oop(&adr[i]);
244 }
245 adr = ik->adr_bootstrap_method();
246 if (mr.contains(adr)) blk->do_oop(adr);
247 adr = ik->adr_class_annotations();
248 if (mr.contains(adr)) blk->do_oop(adr);
249 adr = ik->adr_fields_annotations();
250 if (mr.contains(adr)) blk->do_oop(adr);
251 adr = ik->adr_methods_annotations();
252 if (mr.contains(adr)) blk->do_oop(adr);
253 adr = ik->adr_methods_parameter_annotations();
254 if (mr.contains(adr)) blk->do_oop(adr);
255 adr = ik->adr_methods_default_annotations();
256 if (mr.contains(adr)) blk->do_oop(adr);
258 klassKlass::oop_oop_iterate_m(obj, blk, mr);
260 if(ik->oop_map_cache() != NULL) ik->oop_map_cache()->oop_iterate(blk, mr);
261 return size;
262 }
264 int instanceKlassKlass::oop_adjust_pointers(oop obj) {
265 assert(obj->is_klass(),"must be a klass");
266 assert(klassOop(obj)->klass_part()->oop_is_instance_slow(), "must be instance klass");
268 instanceKlass* ik = instanceKlass::cast(klassOop(obj));
269 ik->adjust_static_fields();
270 ik->vtable()->oop_adjust_pointers();
271 ik->itable()->oop_adjust_pointers();
273 MarkSweep::adjust_pointer(ik->adr_array_klasses());
274 MarkSweep::adjust_pointer(ik->adr_methods());
275 MarkSweep::adjust_pointer(ik->adr_method_ordering());
276 MarkSweep::adjust_pointer(ik->adr_local_interfaces());
277 MarkSweep::adjust_pointer(ik->adr_transitive_interfaces());
278 MarkSweep::adjust_pointer(ik->adr_fields());
279 MarkSweep::adjust_pointer(ik->adr_constants());
280 MarkSweep::adjust_pointer(ik->adr_class_loader());
281 MarkSweep::adjust_pointer(ik->adr_protection_domain());
282 MarkSweep::adjust_pointer(ik->adr_host_klass());
283 MarkSweep::adjust_pointer(ik->adr_signers());
284 MarkSweep::adjust_pointer(ik->adr_inner_classes());
285 for (int i = 0; i < instanceKlass::implementors_limit; i++) {
286 MarkSweep::adjust_pointer(&ik->adr_implementors()[i]);
287 }
288 MarkSweep::adjust_pointer(ik->adr_bootstrap_method());
289 MarkSweep::adjust_pointer(ik->adr_class_annotations());
290 MarkSweep::adjust_pointer(ik->adr_fields_annotations());
291 MarkSweep::adjust_pointer(ik->adr_methods_annotations());
292 MarkSweep::adjust_pointer(ik->adr_methods_parameter_annotations());
293 MarkSweep::adjust_pointer(ik->adr_methods_default_annotations());
295 iterate_c_heap_oops(ik, &MarkSweep::adjust_root_pointer_closure);
297 return klassKlass::oop_adjust_pointers(obj);
298 }
300 #ifndef SERIALGC
301 void instanceKlassKlass::oop_push_contents(PSPromotionManager* pm, oop obj) {
302 instanceKlass* ik = instanceKlass::cast(klassOop(obj));
303 ik->push_static_fields(pm);
305 oop* loader_addr = ik->adr_class_loader();
306 if (PSScavenge::should_scavenge(loader_addr)) {
307 pm->claim_or_forward_depth(loader_addr);
308 }
310 oop* pd_addr = ik->adr_protection_domain();
311 if (PSScavenge::should_scavenge(pd_addr)) {
312 pm->claim_or_forward_depth(pd_addr);
313 }
315 oop* hk_addr = ik->adr_host_klass();
316 if (PSScavenge::should_scavenge(hk_addr)) {
317 pm->claim_or_forward_depth(hk_addr);
318 }
320 oop* sg_addr = ik->adr_signers();
321 if (PSScavenge::should_scavenge(sg_addr)) {
322 pm->claim_or_forward_depth(sg_addr);
323 }
325 oop* bsm_addr = ik->adr_bootstrap_method();
326 if (PSScavenge::should_scavenge(bsm_addr)) {
327 pm->claim_or_forward_depth(bsm_addr);
328 }
330 klassKlass::oop_push_contents(pm, obj);
331 }
333 int instanceKlassKlass::oop_update_pointers(ParCompactionManager* cm, oop obj) {
334 assert(obj->is_klass(),"must be a klass");
335 assert(klassOop(obj)->klass_part()->oop_is_instance_slow(),
336 "must be instance klass");
338 instanceKlass* ik = instanceKlass::cast(klassOop(obj));
339 ik->update_static_fields();
340 ik->vtable()->oop_update_pointers(cm);
341 ik->itable()->oop_update_pointers(cm);
343 oop* const beg_oop = ik->oop_block_beg();
344 oop* const end_oop = ik->oop_block_end();
345 for (oop* cur_oop = beg_oop; cur_oop < end_oop; ++cur_oop) {
346 PSParallelCompact::adjust_pointer(cur_oop);
347 }
349 OopClosure* closure = PSParallelCompact::adjust_root_pointer_closure();
350 iterate_c_heap_oops(ik, closure);
352 klassKlass::oop_update_pointers(cm, obj);
353 return ik->object_size();
354 }
356 #endif // SERIALGC
358 klassOop
359 instanceKlassKlass::allocate_instance_klass(int vtable_len, int itable_len,
360 int static_field_size,
361 unsigned nonstatic_oop_map_count,
362 ReferenceType rt, TRAPS) {
364 const int nonstatic_oop_map_size =
365 instanceKlass::nonstatic_oop_map_size(nonstatic_oop_map_count);
366 int size = instanceKlass::object_size(align_object_offset(vtable_len) + align_object_offset(itable_len) + static_field_size + nonstatic_oop_map_size);
368 // Allocation
369 KlassHandle h_this_klass(THREAD, as_klassOop());
370 KlassHandle k;
371 if (rt == REF_NONE) {
372 // regular klass
373 instanceKlass o;
374 k = base_create_klass(h_this_klass, size, o.vtbl_value(), CHECK_NULL);
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.");
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");
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);
404 ik->set_host_klass(NULL);
405 ik->set_signers(NULL);
406 ik->set_source_file_name(NULL);
407 ik->set_source_debug_extension(NULL);
408 ik->set_source_debug_extension(NULL);
409 ik->set_array_name(NULL);
410 ik->set_inner_classes(NULL);
411 ik->set_static_oop_field_size(0);
412 ik->set_nonstatic_field_size(0);
413 ik->set_is_marked_dependent(false);
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);
423 ik->set_bootstrap_method(NULL);
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.");
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 }
442 // To get verify to work - must be set to partial loaded before first GC point.
443 k()->set_partially_loaded();
444 }
446 // GC can happen here
447 java_lang_Class::create_mirror(k, CHECK_NULL); // Allocate mirror
448 return k();
449 }
453 #ifndef PRODUCT
455 // Printing
457 #define BULLET " - "
459 static const char* state_names[] = {
460 "unparseable_by_gc", "allocated", "loaded", "linked", "being_initialized", "fully_initialized", "initialization_error"
461 };
464 void instanceKlassKlass::oop_print_on(oop obj, outputStream* st) {
465 assert(obj->is_klass(), "must be klass");
466 instanceKlass* ik = instanceKlass::cast(klassOop(obj));
467 klassKlass::oop_print_on(obj, st);
469 st->print(BULLET"instance size: %d", ik->size_helper()); st->cr();
470 st->print(BULLET"klass size: %d", ik->object_size()); st->cr();
471 st->print(BULLET"access: "); ik->access_flags().print_on(st); st->cr();
472 st->print(BULLET"state: "); st->print_cr(state_names[ik->_init_state]);
473 st->print(BULLET"name: "); ik->name()->print_value_on(st); st->cr();
474 st->print(BULLET"super: "); ik->super()->print_value_on(st); st->cr();
475 st->print(BULLET"sub: ");
476 Klass* sub = ik->subklass();
477 int n;
478 for (n = 0; sub != NULL; n++, sub = sub->next_sibling()) {
479 if (n < MaxSubklassPrintSize) {
480 sub->as_klassOop()->print_value_on(st);
481 st->print(" ");
482 }
483 }
484 if (n >= MaxSubklassPrintSize) st->print("(%d more klasses...)", n - MaxSubklassPrintSize);
485 st->cr();
487 if (ik->is_interface()) {
488 st->print_cr(BULLET"nof implementors: %d", ik->nof_implementors());
489 int print_impl = 0;
490 for (int i = 0; i < instanceKlass::implementors_limit; i++) {
491 if (ik->implementor(i) != NULL) {
492 if (++print_impl == 1)
493 st->print_cr(BULLET"implementor: ");
494 st->print(" ");
495 ik->implementor(i)->print_value_on(st);
496 }
497 }
498 if (print_impl > 0) st->cr();
499 }
501 st->print(BULLET"arrays: "); ik->array_klasses()->print_value_on(st); st->cr();
502 st->print(BULLET"methods: "); ik->methods()->print_value_on(st); st->cr();
503 if (Verbose) {
504 objArrayOop methods = ik->methods();
505 for(int i = 0; i < methods->length(); i++) {
506 tty->print("%d : ", i); methods->obj_at(i)->print_value(); tty->cr();
507 }
508 }
509 st->print(BULLET"method ordering: "); ik->method_ordering()->print_value_on(st); st->cr();
510 st->print(BULLET"local interfaces: "); ik->local_interfaces()->print_value_on(st); st->cr();
511 st->print(BULLET"trans. interfaces: "); ik->transitive_interfaces()->print_value_on(st); st->cr();
512 st->print(BULLET"constants: "); ik->constants()->print_value_on(st); st->cr();
513 st->print(BULLET"class loader: "); ik->class_loader()->print_value_on(st); st->cr();
514 st->print(BULLET"protection domain: "); ik->protection_domain()->print_value_on(st); st->cr();
515 st->print(BULLET"host class: "); ik->host_klass()->print_value_on(st); st->cr();
516 st->print(BULLET"signers: "); ik->signers()->print_value_on(st); st->cr();
517 if (ik->source_file_name() != NULL) {
518 st->print(BULLET"source file: ");
519 ik->source_file_name()->print_value_on(st);
520 st->cr();
521 }
522 if (ik->source_debug_extension() != NULL) {
523 st->print(BULLET"source debug extension: ");
524 ik->source_debug_extension()->print_value_on(st);
525 st->cr();
526 }
528 {
529 ResourceMark rm;
530 // PreviousVersionInfo objects returned via PreviousVersionWalker
531 // contain a GrowableArray of handles. We have to clean up the
532 // GrowableArray _after_ the PreviousVersionWalker destructor
533 // has destroyed the handles.
534 {
535 bool have_pv = false;
536 PreviousVersionWalker pvw(ik);
537 for (PreviousVersionInfo * pv_info = pvw.next_previous_version();
538 pv_info != NULL; pv_info = pvw.next_previous_version()) {
539 if (!have_pv)
540 st->print(BULLET"previous version: ");
541 have_pv = true;
542 pv_info->prev_constant_pool_handle()()->print_value_on(st);
543 }
544 if (have_pv) st->cr();
545 } // pvw is cleaned up
546 } // rm is cleaned up
548 if (ik->bootstrap_method() != NULL) {
549 st->print(BULLET"bootstrap method: ");
550 ik->bootstrap_method()->print_value_on(st);
551 st->cr();
552 }
553 if (ik->generic_signature() != NULL) {
554 st->print(BULLET"generic signature: ");
555 ik->generic_signature()->print_value_on(st);
556 st->cr();
557 }
558 st->print(BULLET"inner classes: "); ik->inner_classes()->print_value_on(st); st->cr();
559 st->print(BULLET"java mirror: "); ik->java_mirror()->print_value_on(st); st->cr();
560 st->print(BULLET"vtable length %d (start addr: " INTPTR_FORMAT ")", ik->vtable_length(), ik->start_of_vtable()); st->cr();
561 st->print(BULLET"itable length %d (start addr: " INTPTR_FORMAT ")", ik->itable_length(), ik->start_of_itable()); st->cr();
562 st->print_cr(BULLET"---- static fields (%d words):", ik->static_field_size());
563 FieldPrinter print_static_field(st);
564 ik->do_local_static_fields(&print_static_field);
565 st->print_cr(BULLET"---- non-static fields (%d words):", ik->nonstatic_field_size());
566 FieldPrinter print_nonstatic_field(st);
567 ik->do_nonstatic_fields(&print_nonstatic_field);
569 st->print(BULLET"static oop maps: ");
570 if (ik->static_oop_field_size() > 0) {
571 int first_offset = ik->offset_of_static_fields();
572 st->print("%d-%d", first_offset, first_offset + ik->static_oop_field_size() - 1);
573 }
574 st->cr();
576 st->print(BULLET"non-static oop maps: ");
577 OopMapBlock* map = ik->start_of_nonstatic_oop_maps();
578 OopMapBlock* end_map = map + ik->nonstatic_oop_map_count();
579 while (map < end_map) {
580 st->print("%d-%d ", map->offset(), map->offset() + heapOopSize*(map->count() - 1));
581 map++;
582 }
583 st->cr();
584 }
586 #endif //PRODUCT
588 void instanceKlassKlass::oop_print_value_on(oop obj, outputStream* st) {
589 assert(obj->is_klass(), "must be klass");
590 instanceKlass* ik = instanceKlass::cast(klassOop(obj));
591 ik->name()->print_value_on(st);
592 }
594 const char* instanceKlassKlass::internal_name() const {
595 return "{instance class}";
596 }
598 // Verification
600 class VerifyFieldClosure: public OopClosure {
601 protected:
602 template <class T> void do_oop_work(T* p) {
603 guarantee(Universe::heap()->is_in(p), "should be in heap");
604 oop obj = oopDesc::load_decode_heap_oop(p);
605 guarantee(obj->is_oop_or_null(), "should be in heap");
606 }
607 public:
608 virtual void do_oop(oop* p) { VerifyFieldClosure::do_oop_work(p); }
609 virtual void do_oop(narrowOop* p) { VerifyFieldClosure::do_oop_work(p); }
610 };
612 void instanceKlassKlass::oop_verify_on(oop obj, outputStream* st) {
613 klassKlass::oop_verify_on(obj, st);
614 if (!obj->partially_loaded()) {
615 Thread *thread = Thread::current();
616 instanceKlass* ik = instanceKlass::cast(klassOop(obj));
618 #ifndef PRODUCT
619 // Avoid redundant verifies
620 if (ik->_verify_count == Universe::verify_count()) return;
621 ik->_verify_count = Universe::verify_count();
622 #endif
623 // Verify that klass is present in SystemDictionary
624 if (ik->is_loaded() && !ik->is_anonymous()) {
625 Symbol* h_name = ik->name();
626 Handle h_loader (thread, ik->class_loader());
627 Handle h_obj(thread, obj);
628 SystemDictionary::verify_obj_klass_present(h_obj, h_name, h_loader);
629 }
631 // Verify static fields
632 VerifyFieldClosure blk;
633 ik->iterate_static_fields(&blk);
635 // Verify vtables
636 if (ik->is_linked()) {
637 ResourceMark rm(thread);
638 // $$$ This used to be done only for m/s collections. Doing it
639 // always seemed a valid generalization. (DLD -- 6/00)
640 ik->vtable()->verify(st);
641 }
643 // Verify oop map cache
644 if (ik->oop_map_cache() != NULL) {
645 ik->oop_map_cache()->verify();
646 }
648 // Verify first subklass
649 if (ik->subklass_oop() != NULL) {
650 guarantee(ik->subklass_oop()->is_perm(), "should be in permspace");
651 guarantee(ik->subklass_oop()->is_klass(), "should be klass");
652 }
654 // Verify siblings
655 klassOop super = ik->super();
656 Klass* sib = ik->next_sibling();
657 int sib_count = 0;
658 while (sib != NULL) {
659 if (sib == ik) {
660 fatal(err_msg("subclass cycle of length %d", sib_count));
661 }
662 if (sib_count >= 100000) {
663 fatal(err_msg("suspiciously long subclass list %d", sib_count));
664 }
665 guarantee(sib->as_klassOop()->is_klass(), "should be klass");
666 guarantee(sib->as_klassOop()->is_perm(), "should be in permspace");
667 guarantee(sib->super() == super, "siblings should have same superklass");
668 sib = sib->next_sibling();
669 }
671 // Verify implementor fields
672 bool saw_null_impl = false;
673 for (int i = 0; i < instanceKlass::implementors_limit; i++) {
674 klassOop im = ik->implementor(i);
675 if (im == NULL) { saw_null_impl = true; continue; }
676 guarantee(!saw_null_impl, "non-nulls must preceded all nulls");
677 guarantee(ik->is_interface(), "only interfaces should have implementor set");
678 guarantee(i < ik->nof_implementors(), "should only have one implementor");
679 guarantee(im->is_perm(), "should be in permspace");
680 guarantee(im->is_klass(), "should be klass");
681 guarantee(!Klass::cast(klassOop(im))->is_interface(), "implementors cannot be interfaces");
682 }
684 // Verify local interfaces
685 objArrayOop local_interfaces = ik->local_interfaces();
686 guarantee(local_interfaces->is_perm(), "should be in permspace");
687 guarantee(local_interfaces->is_objArray(), "should be obj array");
688 int j;
689 for (j = 0; j < local_interfaces->length(); j++) {
690 oop e = local_interfaces->obj_at(j);
691 guarantee(e->is_klass() && Klass::cast(klassOop(e))->is_interface(), "invalid local interface");
692 }
694 // Verify transitive interfaces
695 objArrayOop transitive_interfaces = ik->transitive_interfaces();
696 guarantee(transitive_interfaces->is_perm(), "should be in permspace");
697 guarantee(transitive_interfaces->is_objArray(), "should be obj array");
698 for (j = 0; j < transitive_interfaces->length(); j++) {
699 oop e = transitive_interfaces->obj_at(j);
700 guarantee(e->is_klass() && Klass::cast(klassOop(e))->is_interface(), "invalid transitive interface");
701 }
703 // Verify methods
704 objArrayOop methods = ik->methods();
705 guarantee(methods->is_perm(), "should be in permspace");
706 guarantee(methods->is_objArray(), "should be obj array");
707 for (j = 0; j < methods->length(); j++) {
708 guarantee(methods->obj_at(j)->is_method(), "non-method in methods array");
709 }
710 for (j = 0; j < methods->length() - 1; j++) {
711 methodOop m1 = methodOop(methods->obj_at(j));
712 methodOop m2 = methodOop(methods->obj_at(j + 1));
713 guarantee(m1->name()->fast_compare(m2->name()) <= 0, "methods not sorted correctly");
714 }
716 // Verify method ordering
717 typeArrayOop method_ordering = ik->method_ordering();
718 guarantee(method_ordering->is_perm(), "should be in permspace");
719 guarantee(method_ordering->is_typeArray(), "should be type array");
720 int length = method_ordering->length();
721 if (JvmtiExport::can_maintain_original_method_order()) {
722 guarantee(length == methods->length(), "invalid method ordering length");
723 jlong sum = 0;
724 for (j = 0; j < length; j++) {
725 int original_index = method_ordering->int_at(j);
726 guarantee(original_index >= 0 && original_index < length, "invalid method ordering index");
727 sum += original_index;
728 }
729 // Verify sum of indices 0,1,...,length-1
730 guarantee(sum == ((jlong)length*(length-1))/2, "invalid method ordering sum");
731 } else {
732 guarantee(length == 0, "invalid method ordering length");
733 }
735 // Verify JNI static field identifiers
736 if (ik->jni_ids() != NULL) {
737 ik->jni_ids()->verify(ik->as_klassOop());
738 }
740 // Verify other fields
741 if (ik->array_klasses() != NULL) {
742 guarantee(ik->array_klasses()->is_perm(), "should be in permspace");
743 guarantee(ik->array_klasses()->is_klass(), "should be klass");
744 }
745 guarantee(ik->fields()->is_perm(), "should be in permspace");
746 guarantee(ik->fields()->is_typeArray(), "should be type array");
747 guarantee(ik->constants()->is_perm(), "should be in permspace");
748 guarantee(ik->constants()->is_constantPool(), "should be constant pool");
749 guarantee(ik->inner_classes()->is_perm(), "should be in permspace");
750 guarantee(ik->inner_classes()->is_typeArray(), "should be type array");
751 if (ik->protection_domain() != NULL) {
752 guarantee(ik->protection_domain()->is_oop(), "should be oop");
753 }
754 if (ik->host_klass() != NULL) {
755 guarantee(ik->host_klass()->is_oop(), "should be oop");
756 }
757 if (ik->signers() != NULL) {
758 guarantee(ik->signers()->is_objArray(), "should be obj array");
759 }
760 if (ik->class_annotations() != NULL) {
761 guarantee(ik->class_annotations()->is_typeArray(), "should be type array");
762 }
763 if (ik->fields_annotations() != NULL) {
764 guarantee(ik->fields_annotations()->is_objArray(), "should be obj array");
765 }
766 if (ik->methods_annotations() != NULL) {
767 guarantee(ik->methods_annotations()->is_objArray(), "should be obj array");
768 }
769 if (ik->methods_parameter_annotations() != NULL) {
770 guarantee(ik->methods_parameter_annotations()->is_objArray(), "should be obj array");
771 }
772 if (ik->methods_default_annotations() != NULL) {
773 guarantee(ik->methods_default_annotations()->is_objArray(), "should be obj array");
774 }
775 }
776 }
779 bool instanceKlassKlass::oop_partially_loaded(oop obj) const {
780 assert(obj->is_klass(), "object must be klass");
781 instanceKlass* ik = instanceKlass::cast(klassOop(obj));
782 assert(ik->oop_is_instance(), "object must be instanceKlass");
783 return ik->transitive_interfaces() == (objArrayOop) obj; // Check whether transitive_interfaces points to self
784 }
787 // The transitive_interfaces is the last field set when loading an object.
788 void instanceKlassKlass::oop_set_partially_loaded(oop obj) {
789 assert(obj->is_klass(), "object must be klass");
790 instanceKlass* ik = instanceKlass::cast(klassOop(obj));
791 // Set the layout helper to a place-holder value, until fuller initialization.
792 // (This allows asserts in oop_is_instance to succeed.)
793 ik->set_layout_helper(Klass::instance_layout_helper(0, true));
794 assert(ik->oop_is_instance(), "object must be instanceKlass");
795 assert(ik->transitive_interfaces() == NULL, "just checking");
796 ik->set_transitive_interfaces((objArrayOop) obj); // Temporarily set transitive_interfaces to point to self
797 }
