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src/share/vm/oops/instanceKlassKlass.cpp@be93aad57795
src/share/vm/oops/instanceKlassKlass.cpp
Tue, 21 Apr 2009 23:21:04 -0700
- author
- jrose
- date
- Tue, 21 Apr 2009 23:21:04 -0700
- changeset 1161
- be93aad57795
- parent 1100
- c89f86385056
- child 1373
- b37c246bf7ce
- child 1408
- ad6585fd4087
- permissions
- -rw-r--r--
6655646: dynamic languages need dynamically linked call sites
Summary: invokedynamic instruction (JSR 292 RI)
Reviewed-by: twisti, never
1 /*
2 * Copyright 1997-2009 Sun Microsystems, Inc. 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 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 */
25 # include "incls/_precompiled.incl"
26 # include "incls/_instanceKlassKlass.cpp.incl"
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 }
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 }
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 }
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 }
55 if (ik->jni_ids() != NULL) {
56 ik->jni_ids()->oops_do(closure);
57 }
58 }
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");
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 }
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());
84 MarkSweep::mark_and_push(ik->adr_host_klass());
85 MarkSweep::mark_and_push(ik->adr_signers());
86 MarkSweep::mark_and_push(ik->adr_generic_signature());
87 MarkSweep::mark_and_push(ik->adr_bootstrap_method());
88 MarkSweep::mark_and_push(ik->adr_class_annotations());
89 MarkSweep::mark_and_push(ik->adr_fields_annotations());
90 MarkSweep::mark_and_push(ik->adr_methods_annotations());
91 MarkSweep::mark_and_push(ik->adr_methods_parameter_annotations());
92 MarkSweep::mark_and_push(ik->adr_methods_default_annotations());
94 // We do not follow adr_implementors() here. It is followed later
95 // in instanceKlass::follow_weak_klass_links()
97 klassKlass::oop_follow_contents(obj);
99 iterate_c_heap_oops(ik, &MarkSweep::mark_and_push_closure);
100 }
102 #ifndef SERIALGC
103 void instanceKlassKlass::oop_follow_contents(ParCompactionManager* cm,
104 oop obj) {
105 assert(obj->is_klass(),"must be a klass");
106 assert(klassOop(obj)->klass_part()->oop_is_instance_slow(), "must be instance klass");
108 instanceKlass* ik = instanceKlass::cast(klassOop(obj));
109 ik->follow_static_fields(cm);
110 ik->vtable()->oop_follow_contents(cm);
111 ik->itable()->oop_follow_contents(cm);
113 PSParallelCompact::mark_and_push(cm, ik->adr_array_klasses());
114 PSParallelCompact::mark_and_push(cm, ik->adr_methods());
115 PSParallelCompact::mark_and_push(cm, ik->adr_method_ordering());
116 PSParallelCompact::mark_and_push(cm, ik->adr_local_interfaces());
117 PSParallelCompact::mark_and_push(cm, ik->adr_transitive_interfaces());
118 PSParallelCompact::mark_and_push(cm, ik->adr_fields());
119 PSParallelCompact::mark_and_push(cm, ik->adr_constants());
120 PSParallelCompact::mark_and_push(cm, ik->adr_class_loader());
121 PSParallelCompact::mark_and_push(cm, ik->adr_source_file_name());
122 PSParallelCompact::mark_and_push(cm, ik->adr_source_debug_extension());
123 PSParallelCompact::mark_and_push(cm, ik->adr_inner_classes());
124 PSParallelCompact::mark_and_push(cm, ik->adr_protection_domain());
125 PSParallelCompact::mark_and_push(cm, ik->adr_host_klass());
126 PSParallelCompact::mark_and_push(cm, ik->adr_signers());
127 PSParallelCompact::mark_and_push(cm, ik->adr_generic_signature());
128 PSParallelCompact::mark_and_push(cm, ik->adr_bootstrap_method());
129 PSParallelCompact::mark_and_push(cm, ik->adr_class_annotations());
130 PSParallelCompact::mark_and_push(cm, ik->adr_fields_annotations());
131 PSParallelCompact::mark_and_push(cm, ik->adr_methods_annotations());
132 PSParallelCompact::mark_and_push(cm, ik->adr_methods_parameter_annotations());
133 PSParallelCompact::mark_and_push(cm, ik->adr_methods_default_annotations());
135 // We do not follow adr_implementor() here. It is followed later
136 // in instanceKlass::follow_weak_klass_links()
138 klassKlass::oop_follow_contents(cm, obj);
140 PSParallelCompact::MarkAndPushClosure mark_and_push_closure(cm);
141 iterate_c_heap_oops(ik, &mark_and_push_closure);
142 }
143 #endif // SERIALGC
145 int instanceKlassKlass::oop_oop_iterate(oop obj, OopClosure* blk) {
146 assert(obj->is_klass(),"must be a klass");
147 assert(klassOop(obj)->klass_part()->oop_is_instance_slow(), "must be instance klass");
148 instanceKlass* ik = instanceKlass::cast(klassOop(obj));
149 // Get size before changing pointers.
150 // Don't call size() or oop_size() since that is a virtual call.
151 int size = ik->object_size();
153 ik->iterate_static_fields(blk);
154 ik->vtable()->oop_oop_iterate(blk);
155 ik->itable()->oop_oop_iterate(blk);
157 blk->do_oop(ik->adr_array_klasses());
158 blk->do_oop(ik->adr_methods());
159 blk->do_oop(ik->adr_method_ordering());
160 blk->do_oop(ik->adr_local_interfaces());
161 blk->do_oop(ik->adr_transitive_interfaces());
162 blk->do_oop(ik->adr_fields());
163 blk->do_oop(ik->adr_constants());
164 blk->do_oop(ik->adr_class_loader());
165 blk->do_oop(ik->adr_protection_domain());
166 blk->do_oop(ik->adr_host_klass());
167 blk->do_oop(ik->adr_signers());
168 blk->do_oop(ik->adr_source_file_name());
169 blk->do_oop(ik->adr_source_debug_extension());
170 blk->do_oop(ik->adr_inner_classes());
171 for (int i = 0; i < instanceKlass::implementors_limit; i++) {
172 blk->do_oop(&ik->adr_implementors()[i]);
173 }
174 blk->do_oop(ik->adr_generic_signature());
175 blk->do_oop(ik->adr_bootstrap_method());
176 blk->do_oop(ik->adr_class_annotations());
177 blk->do_oop(ik->adr_fields_annotations());
178 blk->do_oop(ik->adr_methods_annotations());
179 blk->do_oop(ik->adr_methods_parameter_annotations());
180 blk->do_oop(ik->adr_methods_default_annotations());
182 klassKlass::oop_oop_iterate(obj, blk);
184 if(ik->oop_map_cache() != NULL) ik->oop_map_cache()->oop_iterate(blk);
185 return size;
186 }
188 int instanceKlassKlass::oop_oop_iterate_m(oop obj, OopClosure* blk,
189 MemRegion mr) {
190 assert(obj->is_klass(),"must be a klass");
191 assert(klassOop(obj)->klass_part()->oop_is_instance_slow(), "must be instance klass");
192 instanceKlass* ik = instanceKlass::cast(klassOop(obj));
193 // Get size before changing pointers.
194 // Don't call size() or oop_size() since that is a virtual call.
195 int size = ik->object_size();
197 ik->iterate_static_fields(blk, mr);
198 ik->vtable()->oop_oop_iterate_m(blk, mr);
199 ik->itable()->oop_oop_iterate_m(blk, mr);
201 oop* adr;
202 adr = ik->adr_array_klasses();
203 if (mr.contains(adr)) blk->do_oop(adr);
204 adr = ik->adr_methods();
205 if (mr.contains(adr)) blk->do_oop(adr);
206 adr = ik->adr_method_ordering();
207 if (mr.contains(adr)) blk->do_oop(adr);
208 adr = ik->adr_local_interfaces();
209 if (mr.contains(adr)) blk->do_oop(adr);
210 adr = ik->adr_transitive_interfaces();
211 if (mr.contains(adr)) blk->do_oop(adr);
212 adr = ik->adr_fields();
213 if (mr.contains(adr)) blk->do_oop(adr);
214 adr = ik->adr_constants();
215 if (mr.contains(adr)) blk->do_oop(adr);
216 adr = ik->adr_class_loader();
217 if (mr.contains(adr)) blk->do_oop(adr);
218 adr = ik->adr_protection_domain();
219 if (mr.contains(adr)) blk->do_oop(adr);
220 adr = ik->adr_host_klass();
221 if (mr.contains(adr)) blk->do_oop(adr);
222 adr = ik->adr_signers();
223 if (mr.contains(adr)) blk->do_oop(adr);
224 adr = ik->adr_source_file_name();
225 if (mr.contains(adr)) blk->do_oop(adr);
226 adr = ik->adr_source_debug_extension();
227 if (mr.contains(adr)) blk->do_oop(adr);
228 adr = ik->adr_inner_classes();
229 if (mr.contains(adr)) blk->do_oop(adr);
230 adr = ik->adr_implementors();
231 for (int i = 0; i < instanceKlass::implementors_limit; i++) {
232 if (mr.contains(&adr[i])) blk->do_oop(&adr[i]);
233 }
234 adr = ik->adr_generic_signature();
235 if (mr.contains(adr)) blk->do_oop(adr);
236 adr = ik->adr_bootstrap_method();
237 if (mr.contains(adr)) blk->do_oop(adr);
238 adr = ik->adr_class_annotations();
239 if (mr.contains(adr)) blk->do_oop(adr);
240 adr = ik->adr_fields_annotations();
241 if (mr.contains(adr)) blk->do_oop(adr);
242 adr = ik->adr_methods_annotations();
243 if (mr.contains(adr)) blk->do_oop(adr);
244 adr = ik->adr_methods_parameter_annotations();
245 if (mr.contains(adr)) blk->do_oop(adr);
246 adr = ik->adr_methods_default_annotations();
247 if (mr.contains(adr)) blk->do_oop(adr);
249 klassKlass::oop_oop_iterate_m(obj, blk, mr);
251 if(ik->oop_map_cache() != NULL) ik->oop_map_cache()->oop_iterate(blk, mr);
252 return size;
253 }
255 int instanceKlassKlass::oop_adjust_pointers(oop obj) {
256 assert(obj->is_klass(),"must be a klass");
257 assert(klassOop(obj)->klass_part()->oop_is_instance_slow(), "must be instance klass");
259 instanceKlass* ik = instanceKlass::cast(klassOop(obj));
260 ik->adjust_static_fields();
261 ik->vtable()->oop_adjust_pointers();
262 ik->itable()->oop_adjust_pointers();
264 MarkSweep::adjust_pointer(ik->adr_array_klasses());
265 MarkSweep::adjust_pointer(ik->adr_methods());
266 MarkSweep::adjust_pointer(ik->adr_method_ordering());
267 MarkSweep::adjust_pointer(ik->adr_local_interfaces());
268 MarkSweep::adjust_pointer(ik->adr_transitive_interfaces());
269 MarkSweep::adjust_pointer(ik->adr_fields());
270 MarkSweep::adjust_pointer(ik->adr_constants());
271 MarkSweep::adjust_pointer(ik->adr_class_loader());
272 MarkSweep::adjust_pointer(ik->adr_protection_domain());
273 MarkSweep::adjust_pointer(ik->adr_host_klass());
274 MarkSweep::adjust_pointer(ik->adr_signers());
275 MarkSweep::adjust_pointer(ik->adr_source_file_name());
276 MarkSweep::adjust_pointer(ik->adr_source_debug_extension());
277 MarkSweep::adjust_pointer(ik->adr_inner_classes());
278 for (int i = 0; i < instanceKlass::implementors_limit; i++) {
279 MarkSweep::adjust_pointer(&ik->adr_implementors()[i]);
280 }
281 MarkSweep::adjust_pointer(ik->adr_generic_signature());
282 MarkSweep::adjust_pointer(ik->adr_bootstrap_method());
283 MarkSweep::adjust_pointer(ik->adr_class_annotations());
284 MarkSweep::adjust_pointer(ik->adr_fields_annotations());
285 MarkSweep::adjust_pointer(ik->adr_methods_annotations());
286 MarkSweep::adjust_pointer(ik->adr_methods_parameter_annotations());
287 MarkSweep::adjust_pointer(ik->adr_methods_default_annotations());
289 iterate_c_heap_oops(ik, &MarkSweep::adjust_root_pointer_closure);
291 return klassKlass::oop_adjust_pointers(obj);
292 }
294 #ifndef SERIALGC
295 void instanceKlassKlass::oop_copy_contents(PSPromotionManager* pm, oop obj) {
296 assert(!pm->depth_first(), "invariant");
297 instanceKlass* ik = instanceKlass::cast(klassOop(obj));
298 ik->copy_static_fields(pm);
300 oop* loader_addr = ik->adr_class_loader();
301 if (PSScavenge::should_scavenge(loader_addr)) {
302 pm->claim_or_forward_breadth(loader_addr);
303 }
305 oop* pd_addr = ik->adr_protection_domain();
306 if (PSScavenge::should_scavenge(pd_addr)) {
307 pm->claim_or_forward_breadth(pd_addr);
308 }
310 oop* hk_addr = ik->adr_host_klass();
311 if (PSScavenge::should_scavenge(hk_addr)) {
312 pm->claim_or_forward_breadth(hk_addr);
313 }
315 oop* sg_addr = ik->adr_signers();
316 if (PSScavenge::should_scavenge(sg_addr)) {
317 pm->claim_or_forward_breadth(sg_addr);
318 }
320 klassKlass::oop_copy_contents(pm, obj);
321 }
323 void instanceKlassKlass::oop_push_contents(PSPromotionManager* pm, oop obj) {
324 assert(pm->depth_first(), "invariant");
325 instanceKlass* ik = instanceKlass::cast(klassOop(obj));
326 ik->push_static_fields(pm);
328 oop* loader_addr = ik->adr_class_loader();
329 if (PSScavenge::should_scavenge(loader_addr)) {
330 pm->claim_or_forward_depth(loader_addr);
331 }
333 oop* pd_addr = ik->adr_protection_domain();
334 if (PSScavenge::should_scavenge(pd_addr)) {
335 pm->claim_or_forward_depth(pd_addr);
336 }
338 oop* hk_addr = ik->adr_host_klass();
339 if (PSScavenge::should_scavenge(hk_addr)) {
340 pm->claim_or_forward_depth(hk_addr);
341 }
343 oop* sg_addr = ik->adr_signers();
344 if (PSScavenge::should_scavenge(sg_addr)) {
345 pm->claim_or_forward_depth(sg_addr);
346 }
348 klassKlass::oop_copy_contents(pm, obj);
349 }
351 int instanceKlassKlass::oop_update_pointers(ParCompactionManager* cm, oop obj) {
352 assert(obj->is_klass(),"must be a klass");
353 assert(klassOop(obj)->klass_part()->oop_is_instance_slow(),
354 "must be instance klass");
356 instanceKlass* ik = instanceKlass::cast(klassOop(obj));
357 ik->update_static_fields();
358 ik->vtable()->oop_update_pointers(cm);
359 ik->itable()->oop_update_pointers(cm);
361 oop* const beg_oop = ik->oop_block_beg();
362 oop* const end_oop = ik->oop_block_end();
363 for (oop* cur_oop = beg_oop; cur_oop < end_oop; ++cur_oop) {
364 PSParallelCompact::adjust_pointer(cur_oop);
365 }
367 OopClosure* closure = PSParallelCompact::adjust_root_pointer_closure();
368 iterate_c_heap_oops(ik, closure);
370 klassKlass::oop_update_pointers(cm, obj);
371 return ik->object_size();
372 }
374 int instanceKlassKlass::oop_update_pointers(ParCompactionManager* cm, oop obj,
375 HeapWord* beg_addr,
376 HeapWord* end_addr) {
377 assert(obj->is_klass(),"must be a klass");
378 assert(klassOop(obj)->klass_part()->oop_is_instance_slow(),
379 "must be instance klass");
381 instanceKlass* ik = instanceKlass::cast(klassOop(obj));
382 ik->update_static_fields(beg_addr, end_addr);
383 ik->vtable()->oop_update_pointers(cm, beg_addr, end_addr);
384 ik->itable()->oop_update_pointers(cm, beg_addr, end_addr);
386 oop* const beg_oop = MAX2((oop*)beg_addr, ik->oop_block_beg());
387 oop* const end_oop = MIN2((oop*)end_addr, ik->oop_block_end());
388 for (oop* cur_oop = beg_oop; cur_oop < end_oop; ++cur_oop) {
389 PSParallelCompact::adjust_pointer(cur_oop);
390 }
392 // The oop_map_cache, jni_ids and jni_id_map are allocated from the C heap,
393 // and so don't lie within any 'Chunk' boundaries. Update them when the
394 // lowest addressed oop in the instanceKlass 'oop_block' is updated.
395 if (beg_oop == ik->oop_block_beg()) {
396 OopClosure* closure = PSParallelCompact::adjust_root_pointer_closure();
397 iterate_c_heap_oops(ik, closure);
398 }
400 klassKlass::oop_update_pointers(cm, obj, beg_addr, end_addr);
401 return ik->object_size();
402 }
403 #endif // SERIALGC
405 klassOop instanceKlassKlass::allocate_instance_klass(int vtable_len, int itable_len, int static_field_size,
406 int nonstatic_oop_map_size, ReferenceType rt, TRAPS) {
408 int size = instanceKlass::object_size(align_object_offset(vtable_len) + align_object_offset(itable_len) + static_field_size + nonstatic_oop_map_size);
410 // Allocation
411 KlassHandle h_this_klass(THREAD, as_klassOop());
412 KlassHandle k;
413 if (rt == REF_NONE) {
414 // regular klass
415 instanceKlass o;
416 k = base_create_klass(h_this_klass, size, o.vtbl_value(), CHECK_NULL);
417 } else {
418 // reference klass
419 instanceRefKlass o;
420 k = base_create_klass(h_this_klass, size, o.vtbl_value(), CHECK_NULL);
421 }
422 {
423 No_Safepoint_Verifier no_safepoint; // until k becomes parsable
424 instanceKlass* ik = (instanceKlass*) k()->klass_part();
425 assert(!k()->is_parsable(), "not expecting parsability yet.");
427 // The sizes of these these three variables are used for determining the
428 // size of the instanceKlassOop. It is critical that these are set to the right
429 // sizes before the first GC, i.e., when we allocate the mirror.
430 ik->set_vtable_length(vtable_len);
431 ik->set_itable_length(itable_len);
432 ik->set_static_field_size(static_field_size);
433 ik->set_nonstatic_oop_map_size(nonstatic_oop_map_size);
434 assert(k()->size() == size, "wrong size for object");
436 ik->set_array_klasses(NULL);
437 ik->set_methods(NULL);
438 ik->set_method_ordering(NULL);
439 ik->set_local_interfaces(NULL);
440 ik->set_transitive_interfaces(NULL);
441 ik->init_implementor();
442 ik->set_fields(NULL);
443 ik->set_constants(NULL);
444 ik->set_class_loader(NULL);
445 ik->set_protection_domain(NULL);
446 ik->set_host_klass(NULL);
447 ik->set_signers(NULL);
448 ik->set_source_file_name(NULL);
449 ik->set_source_debug_extension(NULL);
450 ik->set_inner_classes(NULL);
451 ik->set_static_oop_field_size(0);
452 ik->set_nonstatic_field_size(0);
453 ik->set_is_marked_dependent(false);
454 ik->set_init_state(instanceKlass::allocated);
455 ik->set_init_thread(NULL);
456 ik->set_reference_type(rt);
457 ik->set_oop_map_cache(NULL);
458 ik->set_jni_ids(NULL);
459 ik->set_osr_nmethods_head(NULL);
460 ik->set_breakpoints(NULL);
461 ik->init_previous_versions();
462 ik->set_generic_signature(NULL);
463 ik->set_bootstrap_method(NULL);
464 ik->release_set_methods_jmethod_ids(NULL);
465 ik->release_set_methods_cached_itable_indices(NULL);
466 ik->set_class_annotations(NULL);
467 ik->set_fields_annotations(NULL);
468 ik->set_methods_annotations(NULL);
469 ik->set_methods_parameter_annotations(NULL);
470 ik->set_methods_default_annotations(NULL);
471 ik->set_enclosing_method_indices(0, 0);
472 ik->set_jvmti_cached_class_field_map(NULL);
473 ik->set_initial_method_idnum(0);
474 assert(k()->is_parsable(), "should be parsable here.");
476 // initialize the non-header words to zero
477 intptr_t* p = (intptr_t*)k();
478 for (int index = instanceKlass::header_size(); index < size; index++) {
479 p[index] = NULL_WORD;
480 }
482 // To get verify to work - must be set to partial loaded before first GC point.
483 k()->set_partially_loaded();
484 }
486 // GC can happen here
487 java_lang_Class::create_mirror(k, CHECK_NULL); // Allocate mirror
488 return k();
489 }
493 #ifndef PRODUCT
495 // Printing
497 #define BULLET " - "
499 static const char* state_names[] = {
500 "unparseable_by_gc", "allocated", "loaded", "linked", "being_initialized", "fully_initialized", "initialization_error"
501 };
504 void instanceKlassKlass::oop_print_on(oop obj, outputStream* st) {
505 assert(obj->is_klass(), "must be klass");
506 instanceKlass* ik = instanceKlass::cast(klassOop(obj));
507 klassKlass::oop_print_on(obj, st);
509 st->print(BULLET"instance size: %d", ik->size_helper()); st->cr();
510 st->print(BULLET"klass size: %d", ik->object_size()); st->cr();
511 st->print(BULLET"access: "); ik->access_flags().print_on(st); st->cr();
512 st->print(BULLET"state: "); st->print_cr(state_names[ik->_init_state]);
513 st->print(BULLET"name: "); ik->name()->print_value_on(st); st->cr();
514 st->print(BULLET"super: "); ik->super()->print_value_on(st); st->cr();
515 st->print(BULLET"sub: ");
516 Klass* sub = ik->subklass();
517 int n;
518 for (n = 0; sub != NULL; n++, sub = sub->next_sibling()) {
519 if (n < MaxSubklassPrintSize) {
520 sub->as_klassOop()->print_value_on(st);
521 st->print(" ");
522 }
523 }
524 if (n >= MaxSubklassPrintSize) st->print("(%d more klasses...)", n - MaxSubklassPrintSize);
525 st->cr();
527 if (ik->is_interface()) {
528 st->print_cr(BULLET"nof implementors: %d", ik->nof_implementors());
529 int print_impl = 0;
530 for (int i = 0; i < instanceKlass::implementors_limit; i++) {
531 if (ik->implementor(i) != NULL) {
532 if (++print_impl == 1)
533 st->print_cr(BULLET"implementor: ");
534 st->print(" ");
535 ik->implementor(i)->print_value_on(st);
536 }
537 }
538 if (print_impl > 0) st->cr();
539 }
541 st->print(BULLET"arrays: "); ik->array_klasses()->print_value_on(st); st->cr();
542 st->print(BULLET"methods: "); ik->methods()->print_value_on(st); st->cr();
543 if (Verbose) {
544 objArrayOop methods = ik->methods();
545 for(int i = 0; i < methods->length(); i++) {
546 tty->print("%d : ", i); methods->obj_at(i)->print_value(); tty->cr();
547 }
548 }
549 st->print(BULLET"method ordering: "); ik->method_ordering()->print_value_on(st); st->cr();
550 st->print(BULLET"local interfaces: "); ik->local_interfaces()->print_value_on(st); st->cr();
551 st->print(BULLET"trans. interfaces: "); ik->transitive_interfaces()->print_value_on(st); st->cr();
552 st->print(BULLET"constants: "); ik->constants()->print_value_on(st); st->cr();
553 st->print(BULLET"class loader: "); ik->class_loader()->print_value_on(st); st->cr();
554 st->print(BULLET"protection domain: "); ik->protection_domain()->print_value_on(st); st->cr();
555 st->print(BULLET"host class: "); ik->host_klass()->print_value_on(st); st->cr();
556 st->print(BULLET"signers: "); ik->signers()->print_value_on(st); st->cr();
557 if (ik->source_file_name() != NULL) {
558 st->print(BULLET"source file: ");
559 ik->source_file_name()->print_value_on(st);
560 st->cr();
561 }
562 if (ik->source_debug_extension() != NULL) {
563 st->print(BULLET"source debug extension: ");
564 ik->source_debug_extension()->print_value_on(st);
565 st->cr();
566 }
568 {
569 ResourceMark rm;
570 // PreviousVersionInfo objects returned via PreviousVersionWalker
571 // contain a GrowableArray of handles. We have to clean up the
572 // GrowableArray _after_ the PreviousVersionWalker destructor
573 // has destroyed the handles.
574 {
575 bool have_pv = false;
576 PreviousVersionWalker pvw(ik);
577 for (PreviousVersionInfo * pv_info = pvw.next_previous_version();
578 pv_info != NULL; pv_info = pvw.next_previous_version()) {
579 if (!have_pv)
580 st->print(BULLET"previous version: ");
581 have_pv = true;
582 pv_info->prev_constant_pool_handle()()->print_value_on(st);
583 }
584 if (have_pv) st->cr();
585 } // pvw is cleaned up
586 } // rm is cleaned up
588 if (ik->bootstrap_method() != NULL) {
589 st->print(BULLET"bootstrap method: ");
590 ik->bootstrap_method()->print_value_on(st);
591 st->cr();
592 }
593 if (ik->generic_signature() != NULL) {
594 st->print(BULLET"generic signature: ");
595 ik->generic_signature()->print_value_on(st);
596 st->cr();
597 }
598 st->print(BULLET"inner classes: "); ik->inner_classes()->print_value_on(st); st->cr();
599 st->print(BULLET"java mirror: "); ik->java_mirror()->print_value_on(st); st->cr();
600 st->print(BULLET"vtable length %d (start addr: " INTPTR_FORMAT ")", ik->vtable_length(), ik->start_of_vtable()); st->cr();
601 st->print(BULLET"itable length %d (start addr: " INTPTR_FORMAT ")", ik->itable_length(), ik->start_of_itable()); st->cr();
602 st->print_cr(BULLET"---- static fields (%d words):", ik->static_field_size());
603 FieldPrinter print_static_field(st);
604 ik->do_local_static_fields(&print_static_field);
605 st->print_cr(BULLET"---- non-static fields (%d words):", ik->nonstatic_field_size());
606 FieldPrinter print_nonstatic_field(st);
607 ik->do_nonstatic_fields(&print_nonstatic_field);
609 st->print(BULLET"static oop maps: ");
610 if (ik->static_oop_field_size() > 0) {
611 int first_offset = ik->offset_of_static_fields();
612 st->print("%d-%d", first_offset, first_offset + ik->static_oop_field_size() - 1);
613 }
614 st->cr();
616 st->print(BULLET"non-static oop maps: ");
617 OopMapBlock* map = ik->start_of_nonstatic_oop_maps();
618 OopMapBlock* end_map = map + ik->nonstatic_oop_map_size();
619 while (map < end_map) {
620 st->print("%d-%d ", map->offset(), map->offset() + heapOopSize*(map->length() - 1));
621 map++;
622 }
623 st->cr();
624 }
627 void instanceKlassKlass::oop_print_value_on(oop obj, outputStream* st) {
628 assert(obj->is_klass(), "must be klass");
629 instanceKlass* ik = instanceKlass::cast(klassOop(obj));
630 ik->name()->print_value_on(st);
631 }
633 #endif // PRODUCT
635 const char* instanceKlassKlass::internal_name() const {
636 return "{instance class}";
637 }
639 // Verification
641 class VerifyFieldClosure: public OopClosure {
642 protected:
643 template <class T> void do_oop_work(T* p) {
644 guarantee(Universe::heap()->is_in(p), "should be in heap");
645 oop obj = oopDesc::load_decode_heap_oop(p);
646 guarantee(obj->is_oop_or_null(), "should be in heap");
647 }
648 public:
649 virtual void do_oop(oop* p) { VerifyFieldClosure::do_oop_work(p); }
650 virtual void do_oop(narrowOop* p) { VerifyFieldClosure::do_oop_work(p); }
651 };
653 void instanceKlassKlass::oop_verify_on(oop obj, outputStream* st) {
654 klassKlass::oop_verify_on(obj, st);
655 if (!obj->partially_loaded()) {
656 Thread *thread = Thread::current();
657 instanceKlass* ik = instanceKlass::cast(klassOop(obj));
659 #ifndef PRODUCT
660 // Avoid redundant verifies
661 if (ik->_verify_count == Universe::verify_count()) return;
662 ik->_verify_count = Universe::verify_count();
663 #endif
664 // Verify that klass is present in SystemDictionary
665 if (ik->is_loaded() && !ik->is_anonymous()) {
666 symbolHandle h_name (thread, ik->name());
667 Handle h_loader (thread, ik->class_loader());
668 Handle h_obj(thread, obj);
669 SystemDictionary::verify_obj_klass_present(h_obj, h_name, h_loader);
670 }
672 // Verify static fields
673 VerifyFieldClosure blk;
674 ik->iterate_static_fields(&blk);
676 // Verify vtables
677 if (ik->is_linked()) {
678 ResourceMark rm(thread);
679 // $$$ This used to be done only for m/s collections. Doing it
680 // always seemed a valid generalization. (DLD -- 6/00)
681 ik->vtable()->verify(st);
682 }
684 // Verify oop map cache
685 if (ik->oop_map_cache() != NULL) {
686 ik->oop_map_cache()->verify();
687 }
689 // Verify first subklass
690 if (ik->subklass_oop() != NULL) {
691 guarantee(ik->subklass_oop()->is_perm(), "should be in permspace");
692 guarantee(ik->subklass_oop()->is_klass(), "should be klass");
693 }
695 // Verify siblings
696 klassOop super = ik->super();
697 Klass* sib = ik->next_sibling();
698 int sib_count = 0;
699 while (sib != NULL) {
700 if (sib == ik) {
701 fatal1("subclass cycle of length %d", sib_count);
702 }
703 if (sib_count >= 100000) {
704 fatal1("suspiciously long subclass list %d", sib_count);
705 }
706 guarantee(sib->as_klassOop()->is_klass(), "should be klass");
707 guarantee(sib->as_klassOop()->is_perm(), "should be in permspace");
708 guarantee(sib->super() == super, "siblings should have same superklass");
709 sib = sib->next_sibling();
710 }
712 // Verify implementor fields
713 bool saw_null_impl = false;
714 for (int i = 0; i < instanceKlass::implementors_limit; i++) {
715 klassOop im = ik->implementor(i);
716 if (im == NULL) { saw_null_impl = true; continue; }
717 guarantee(!saw_null_impl, "non-nulls must preceded all nulls");
718 guarantee(ik->is_interface(), "only interfaces should have implementor set");
719 guarantee(i < ik->nof_implementors(), "should only have one implementor");
720 guarantee(im->is_perm(), "should be in permspace");
721 guarantee(im->is_klass(), "should be klass");
722 guarantee(!Klass::cast(klassOop(im))->is_interface(), "implementors cannot be interfaces");
723 }
725 // Verify local interfaces
726 objArrayOop local_interfaces = ik->local_interfaces();
727 guarantee(local_interfaces->is_perm(), "should be in permspace");
728 guarantee(local_interfaces->is_objArray(), "should be obj array");
729 int j;
730 for (j = 0; j < local_interfaces->length(); j++) {
731 oop e = local_interfaces->obj_at(j);
732 guarantee(e->is_klass() && Klass::cast(klassOop(e))->is_interface(), "invalid local interface");
733 }
735 // Verify transitive interfaces
736 objArrayOop transitive_interfaces = ik->transitive_interfaces();
737 guarantee(transitive_interfaces->is_perm(), "should be in permspace");
738 guarantee(transitive_interfaces->is_objArray(), "should be obj array");
739 for (j = 0; j < transitive_interfaces->length(); j++) {
740 oop e = transitive_interfaces->obj_at(j);
741 guarantee(e->is_klass() && Klass::cast(klassOop(e))->is_interface(), "invalid transitive interface");
742 }
744 // Verify methods
745 objArrayOop methods = ik->methods();
746 guarantee(methods->is_perm(), "should be in permspace");
747 guarantee(methods->is_objArray(), "should be obj array");
748 for (j = 0; j < methods->length(); j++) {
749 guarantee(methods->obj_at(j)->is_method(), "non-method in methods array");
750 }
751 for (j = 0; j < methods->length() - 1; j++) {
752 methodOop m1 = methodOop(methods->obj_at(j));
753 methodOop m2 = methodOop(methods->obj_at(j + 1));
754 guarantee(m1->name()->fast_compare(m2->name()) <= 0, "methods not sorted correctly");
755 }
757 // Verify method ordering
758 typeArrayOop method_ordering = ik->method_ordering();
759 guarantee(method_ordering->is_perm(), "should be in permspace");
760 guarantee(method_ordering->is_typeArray(), "should be type array");
761 int length = method_ordering->length();
762 if (JvmtiExport::can_maintain_original_method_order()) {
763 guarantee(length == methods->length(), "invalid method ordering length");
764 jlong sum = 0;
765 for (j = 0; j < length; j++) {
766 int original_index = method_ordering->int_at(j);
767 guarantee(original_index >= 0 && original_index < length, "invalid method ordering index");
768 sum += original_index;
769 }
770 // Verify sum of indices 0,1,...,length-1
771 guarantee(sum == ((jlong)length*(length-1))/2, "invalid method ordering sum");
772 } else {
773 guarantee(length == 0, "invalid method ordering length");
774 }
776 // Verify JNI static field identifiers
777 if (ik->jni_ids() != NULL) {
778 ik->jni_ids()->verify(ik->as_klassOop());
779 }
781 // Verify other fields
782 if (ik->array_klasses() != NULL) {
783 guarantee(ik->array_klasses()->is_perm(), "should be in permspace");
784 guarantee(ik->array_klasses()->is_klass(), "should be klass");
785 }
786 guarantee(ik->fields()->is_perm(), "should be in permspace");
787 guarantee(ik->fields()->is_typeArray(), "should be type array");
788 guarantee(ik->constants()->is_perm(), "should be in permspace");
789 guarantee(ik->constants()->is_constantPool(), "should be constant pool");
790 guarantee(ik->inner_classes()->is_perm(), "should be in permspace");
791 guarantee(ik->inner_classes()->is_typeArray(), "should be type array");
792 if (ik->source_file_name() != NULL) {
793 guarantee(ik->source_file_name()->is_perm(), "should be in permspace");
794 guarantee(ik->source_file_name()->is_symbol(), "should be symbol");
795 }
796 if (ik->source_debug_extension() != NULL) {
797 guarantee(ik->source_debug_extension()->is_perm(), "should be in permspace");
798 guarantee(ik->source_debug_extension()->is_symbol(), "should be symbol");
799 }
800 if (ik->protection_domain() != NULL) {
801 guarantee(ik->protection_domain()->is_oop(), "should be oop");
802 }
803 if (ik->host_klass() != NULL) {
804 guarantee(ik->host_klass()->is_oop(), "should be oop");
805 }
806 if (ik->signers() != NULL) {
807 guarantee(ik->signers()->is_objArray(), "should be obj array");
808 }
809 if (ik->generic_signature() != NULL) {
810 guarantee(ik->generic_signature()->is_perm(), "should be in permspace");
811 guarantee(ik->generic_signature()->is_symbol(), "should be symbol");
812 }
813 if (ik->class_annotations() != NULL) {
814 guarantee(ik->class_annotations()->is_typeArray(), "should be type array");
815 }
816 if (ik->fields_annotations() != NULL) {
817 guarantee(ik->fields_annotations()->is_objArray(), "should be obj array");
818 }
819 if (ik->methods_annotations() != NULL) {
820 guarantee(ik->methods_annotations()->is_objArray(), "should be obj array");
821 }
822 if (ik->methods_parameter_annotations() != NULL) {
823 guarantee(ik->methods_parameter_annotations()->is_objArray(), "should be obj array");
824 }
825 if (ik->methods_default_annotations() != NULL) {
826 guarantee(ik->methods_default_annotations()->is_objArray(), "should be obj array");
827 }
828 }
829 }
832 bool instanceKlassKlass::oop_partially_loaded(oop obj) const {
833 assert(obj->is_klass(), "object must be klass");
834 instanceKlass* ik = instanceKlass::cast(klassOop(obj));
835 assert(ik->oop_is_instance(), "object must be instanceKlass");
836 return ik->transitive_interfaces() == (objArrayOop) obj; // Check whether transitive_interfaces points to self
837 }
840 // The transitive_interfaces is the last field set when loading an object.
841 void instanceKlassKlass::oop_set_partially_loaded(oop obj) {
842 assert(obj->is_klass(), "object must be klass");
843 instanceKlass* ik = instanceKlass::cast(klassOop(obj));
844 // Set the layout helper to a place-holder value, until fuller initialization.
845 // (This allows asserts in oop_is_instance to succeed.)
846 ik->set_layout_helper(Klass::instance_layout_helper(0, true));
847 assert(ik->oop_is_instance(), "object must be instanceKlass");
848 assert(ik->transitive_interfaces() == NULL, "just checking");
849 ik->set_transitive_interfaces((objArrayOop) obj); // Temporarily set transitive_interfaces to point to self
850 }
