Mercurial > hg > truffle
annotate src/share/vm/oops/instanceKlassKlass.cpp @ 676:d3676b4cb78c
Merge
author | kvn |
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date | Tue, 31 Mar 2009 10:02:01 -0700 |
parents | c89f86385056 |
children | be93aad57795 |
rev | line source |
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0 | 1 /* |
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2 * Copyright 1997-2009 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); | |
431
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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 | |
665
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490 #define BULLET " - " |
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491 |
0 | 492 static const char* state_names[] = { |
493 "unparseable_by_gc", "allocated", "loaded", "linked", "being_initialized", "fully_initialized", "initialization_error" | |
494 }; | |
495 | |
496 | |
497 void instanceKlassKlass::oop_print_on(oop obj, outputStream* st) { | |
498 assert(obj->is_klass(), "must be klass"); | |
499 instanceKlass* ik = instanceKlass::cast(klassOop(obj)); | |
500 klassKlass::oop_print_on(obj, st); | |
501 | |
665
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502 st->print(BULLET"instance size: %d", ik->size_helper()); st->cr(); |
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503 st->print(BULLET"klass size: %d", ik->object_size()); st->cr(); |
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504 st->print(BULLET"access: "); ik->access_flags().print_on(st); st->cr(); |
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505 st->print(BULLET"state: "); st->print_cr(state_names[ik->_init_state]); |
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506 st->print(BULLET"name: "); ik->name()->print_value_on(st); st->cr(); |
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507 st->print(BULLET"super: "); ik->super()->print_value_on(st); st->cr(); |
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508 st->print(BULLET"sub: "); |
0 | 509 Klass* sub = ik->subklass(); |
510 int n; | |
511 for (n = 0; sub != NULL; n++, sub = sub->next_sibling()) { | |
512 if (n < MaxSubklassPrintSize) { | |
513 sub->as_klassOop()->print_value_on(st); | |
514 st->print(" "); | |
515 } | |
516 } | |
517 if (n >= MaxSubklassPrintSize) st->print("(%d more klasses...)", n - MaxSubklassPrintSize); | |
518 st->cr(); | |
519 | |
520 if (ik->is_interface()) { | |
665
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521 st->print_cr(BULLET"nof implementors: %d", ik->nof_implementors()); |
0 | 522 int print_impl = 0; |
523 for (int i = 0; i < instanceKlass::implementors_limit; i++) { | |
524 if (ik->implementor(i) != NULL) { | |
525 if (++print_impl == 1) | |
665
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526 st->print_cr(BULLET"implementor: "); |
0 | 527 st->print(" "); |
528 ik->implementor(i)->print_value_on(st); | |
529 } | |
530 } | |
531 if (print_impl > 0) st->cr(); | |
532 } | |
533 | |
665
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534 st->print(BULLET"arrays: "); ik->array_klasses()->print_value_on(st); st->cr(); |
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535 st->print(BULLET"methods: "); ik->methods()->print_value_on(st); st->cr(); |
0 | 536 if (Verbose) { |
537 objArrayOop methods = ik->methods(); | |
538 for(int i = 0; i < methods->length(); i++) { | |
539 tty->print("%d : ", i); methods->obj_at(i)->print_value(); tty->cr(); | |
540 } | |
541 } | |
665
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542 st->print(BULLET"method ordering: "); ik->method_ordering()->print_value_on(st); st->cr(); |
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543 st->print(BULLET"local interfaces: "); ik->local_interfaces()->print_value_on(st); st->cr(); |
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544 st->print(BULLET"trans. interfaces: "); ik->transitive_interfaces()->print_value_on(st); st->cr(); |
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545 st->print(BULLET"constants: "); ik->constants()->print_value_on(st); st->cr(); |
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546 st->print(BULLET"class loader: "); ik->class_loader()->print_value_on(st); st->cr(); |
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547 st->print(BULLET"protection domain: "); ik->protection_domain()->print_value_on(st); st->cr(); |
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548 st->print(BULLET"host class: "); ik->host_klass()->print_value_on(st); st->cr(); |
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549 st->print(BULLET"signers: "); ik->signers()->print_value_on(st); st->cr(); |
0 | 550 if (ik->source_file_name() != NULL) { |
665
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551 st->print(BULLET"source file: "); |
0 | 552 ik->source_file_name()->print_value_on(st); |
553 st->cr(); | |
554 } | |
555 if (ik->source_debug_extension() != NULL) { | |
665
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556 st->print(BULLET"source debug extension: "); |
0 | 557 ik->source_debug_extension()->print_value_on(st); |
558 st->cr(); | |
559 } | |
560 | |
561 { | |
562 ResourceMark rm; | |
563 // PreviousVersionInfo objects returned via PreviousVersionWalker | |
564 // contain a GrowableArray of handles. We have to clean up the | |
565 // GrowableArray _after_ the PreviousVersionWalker destructor | |
566 // has destroyed the handles. | |
567 { | |
665
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568 bool have_pv = false; |
0 | 569 PreviousVersionWalker pvw(ik); |
570 for (PreviousVersionInfo * pv_info = pvw.next_previous_version(); | |
571 pv_info != NULL; pv_info = pvw.next_previous_version()) { | |
665
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572 if (!have_pv) |
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573 st->print(BULLET"previous version: "); |
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574 have_pv = true; |
0 | 575 pv_info->prev_constant_pool_handle()()->print_value_on(st); |
576 } | |
665
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577 if (have_pv) st->cr(); |
0 | 578 } // pvw is cleaned up |
579 } // rm is cleaned up | |
580 | |
581 if (ik->generic_signature() != NULL) { | |
665
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582 st->print(BULLET"generic signature: "); |
0 | 583 ik->generic_signature()->print_value_on(st); |
665
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584 st->cr(); |
0 | 585 } |
665
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586 st->print(BULLET"inner classes: "); ik->inner_classes()->print_value_on(st); st->cr(); |
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587 st->print(BULLET"java mirror: "); ik->java_mirror()->print_value_on(st); st->cr(); |
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588 st->print(BULLET"vtable length %d (start addr: " INTPTR_FORMAT ")", ik->vtable_length(), ik->start_of_vtable()); st->cr(); |
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589 st->print(BULLET"itable length %d (start addr: " INTPTR_FORMAT ")", ik->itable_length(), ik->start_of_itable()); st->cr(); |
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590 st->print_cr(BULLET"---- static fields (%d words):", ik->static_field_size()); |
0 | 591 FieldPrinter print_static_field(st); |
592 ik->do_local_static_fields(&print_static_field); | |
665
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593 st->print_cr(BULLET"---- non-static fields (%d words):", ik->nonstatic_field_size()); |
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594 FieldPrinter print_nonstatic_field(st); |
0 | 595 ik->do_nonstatic_fields(&print_nonstatic_field); |
596 | |
665
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597 st->print(BULLET"static oop maps: "); |
0 | 598 if (ik->static_oop_field_size() > 0) { |
599 int first_offset = ik->offset_of_static_fields(); | |
600 st->print("%d-%d", first_offset, first_offset + ik->static_oop_field_size() - 1); | |
601 } | |
602 st->cr(); | |
603 | |
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604 st->print(BULLET"non-static oop maps: "); |
0 | 605 OopMapBlock* map = ik->start_of_nonstatic_oop_maps(); |
606 OopMapBlock* end_map = map + ik->nonstatic_oop_map_size(); | |
607 while (map < end_map) { | |
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608 st->print("%d-%d ", map->offset(), map->offset() + heapOopSize*(map->length() - 1)); |
0 | 609 map++; |
610 } | |
611 st->cr(); | |
612 } | |
613 | |
614 | |
615 void instanceKlassKlass::oop_print_value_on(oop obj, outputStream* st) { | |
616 assert(obj->is_klass(), "must be klass"); | |
617 instanceKlass* ik = instanceKlass::cast(klassOop(obj)); | |
618 ik->name()->print_value_on(st); | |
619 } | |
620 | |
621 #endif // PRODUCT | |
622 | |
623 const char* instanceKlassKlass::internal_name() const { | |
624 return "{instance class}"; | |
625 } | |
626 | |
627 // Verification | |
628 | |
629 class VerifyFieldClosure: public OopClosure { | |
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630 protected: |
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631 template <class T> void do_oop_work(T* p) { |
0 | 632 guarantee(Universe::heap()->is_in(p), "should be in heap"); |
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633 oop obj = oopDesc::load_decode_heap_oop(p); |
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634 guarantee(obj->is_oop_or_null(), "should be in heap"); |
0 | 635 } |
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636 public: |
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637 virtual void do_oop(oop* p) { VerifyFieldClosure::do_oop_work(p); } |
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638 virtual void do_oop(narrowOop* p) { VerifyFieldClosure::do_oop_work(p); } |
0 | 639 }; |
640 | |
641 void instanceKlassKlass::oop_verify_on(oop obj, outputStream* st) { | |
642 klassKlass::oop_verify_on(obj, st); | |
643 if (!obj->partially_loaded()) { | |
644 Thread *thread = Thread::current(); | |
645 instanceKlass* ik = instanceKlass::cast(klassOop(obj)); | |
646 | |
647 #ifndef PRODUCT | |
648 // Avoid redundant verifies | |
649 if (ik->_verify_count == Universe::verify_count()) return; | |
650 ik->_verify_count = Universe::verify_count(); | |
651 #endif | |
652 // Verify that klass is present in SystemDictionary | |
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653 if (ik->is_loaded() && !ik->is_anonymous()) { |
0 | 654 symbolHandle h_name (thread, ik->name()); |
655 Handle h_loader (thread, ik->class_loader()); | |
656 Handle h_obj(thread, obj); | |
657 SystemDictionary::verify_obj_klass_present(h_obj, h_name, h_loader); | |
658 } | |
659 | |
660 // Verify static fields | |
661 VerifyFieldClosure blk; | |
662 ik->iterate_static_fields(&blk); | |
663 | |
664 // Verify vtables | |
665 if (ik->is_linked()) { | |
666 ResourceMark rm(thread); | |
667 // $$$ This used to be done only for m/s collections. Doing it | |
668 // always seemed a valid generalization. (DLD -- 6/00) | |
669 ik->vtable()->verify(st); | |
670 } | |
671 | |
672 // Verify oop map cache | |
673 if (ik->oop_map_cache() != NULL) { | |
674 ik->oop_map_cache()->verify(); | |
675 } | |
676 | |
677 // Verify first subklass | |
678 if (ik->subklass_oop() != NULL) { | |
679 guarantee(ik->subklass_oop()->is_perm(), "should be in permspace"); | |
680 guarantee(ik->subklass_oop()->is_klass(), "should be klass"); | |
681 } | |
682 | |
683 // Verify siblings | |
684 klassOop super = ik->super(); | |
685 Klass* sib = ik->next_sibling(); | |
686 int sib_count = 0; | |
687 while (sib != NULL) { | |
688 if (sib == ik) { | |
689 fatal1("subclass cycle of length %d", sib_count); | |
690 } | |
691 if (sib_count >= 100000) { | |
692 fatal1("suspiciously long subclass list %d", sib_count); | |
693 } | |
694 guarantee(sib->as_klassOop()->is_klass(), "should be klass"); | |
695 guarantee(sib->as_klassOop()->is_perm(), "should be in permspace"); | |
696 guarantee(sib->super() == super, "siblings should have same superklass"); | |
697 sib = sib->next_sibling(); | |
698 } | |
699 | |
700 // Verify implementor fields | |
701 bool saw_null_impl = false; | |
702 for (int i = 0; i < instanceKlass::implementors_limit; i++) { | |
703 klassOop im = ik->implementor(i); | |
704 if (im == NULL) { saw_null_impl = true; continue; } | |
705 guarantee(!saw_null_impl, "non-nulls must preceded all nulls"); | |
706 guarantee(ik->is_interface(), "only interfaces should have implementor set"); | |
707 guarantee(i < ik->nof_implementors(), "should only have one implementor"); | |
708 guarantee(im->is_perm(), "should be in permspace"); | |
709 guarantee(im->is_klass(), "should be klass"); | |
710 guarantee(!Klass::cast(klassOop(im))->is_interface(), "implementors cannot be interfaces"); | |
711 } | |
712 | |
713 // Verify local interfaces | |
714 objArrayOop local_interfaces = ik->local_interfaces(); | |
715 guarantee(local_interfaces->is_perm(), "should be in permspace"); | |
716 guarantee(local_interfaces->is_objArray(), "should be obj array"); | |
717 int j; | |
718 for (j = 0; j < local_interfaces->length(); j++) { | |
719 oop e = local_interfaces->obj_at(j); | |
720 guarantee(e->is_klass() && Klass::cast(klassOop(e))->is_interface(), "invalid local interface"); | |
721 } | |
722 | |
723 // Verify transitive interfaces | |
724 objArrayOop transitive_interfaces = ik->transitive_interfaces(); | |
725 guarantee(transitive_interfaces->is_perm(), "should be in permspace"); | |
726 guarantee(transitive_interfaces->is_objArray(), "should be obj array"); | |
727 for (j = 0; j < transitive_interfaces->length(); j++) { | |
728 oop e = transitive_interfaces->obj_at(j); | |
729 guarantee(e->is_klass() && Klass::cast(klassOop(e))->is_interface(), "invalid transitive interface"); | |
730 } | |
731 | |
732 // Verify methods | |
733 objArrayOop methods = ik->methods(); | |
734 guarantee(methods->is_perm(), "should be in permspace"); | |
735 guarantee(methods->is_objArray(), "should be obj array"); | |
736 for (j = 0; j < methods->length(); j++) { | |
737 guarantee(methods->obj_at(j)->is_method(), "non-method in methods array"); | |
738 } | |
739 for (j = 0; j < methods->length() - 1; j++) { | |
740 methodOop m1 = methodOop(methods->obj_at(j)); | |
741 methodOop m2 = methodOop(methods->obj_at(j + 1)); | |
742 guarantee(m1->name()->fast_compare(m2->name()) <= 0, "methods not sorted correctly"); | |
743 } | |
744 | |
745 // Verify method ordering | |
746 typeArrayOop method_ordering = ik->method_ordering(); | |
747 guarantee(method_ordering->is_perm(), "should be in permspace"); | |
748 guarantee(method_ordering->is_typeArray(), "should be type array"); | |
749 int length = method_ordering->length(); | |
750 if (JvmtiExport::can_maintain_original_method_order()) { | |
751 guarantee(length == methods->length(), "invalid method ordering length"); | |
752 jlong sum = 0; | |
753 for (j = 0; j < length; j++) { | |
754 int original_index = method_ordering->int_at(j); | |
755 guarantee(original_index >= 0 && original_index < length, "invalid method ordering index"); | |
756 sum += original_index; | |
757 } | |
758 // Verify sum of indices 0,1,...,length-1 | |
759 guarantee(sum == ((jlong)length*(length-1))/2, "invalid method ordering sum"); | |
760 } else { | |
761 guarantee(length == 0, "invalid method ordering length"); | |
762 } | |
763 | |
764 // Verify JNI static field identifiers | |
765 if (ik->jni_ids() != NULL) { | |
766 ik->jni_ids()->verify(ik->as_klassOop()); | |
767 } | |
768 | |
769 // Verify other fields | |
770 if (ik->array_klasses() != NULL) { | |
771 guarantee(ik->array_klasses()->is_perm(), "should be in permspace"); | |
772 guarantee(ik->array_klasses()->is_klass(), "should be klass"); | |
773 } | |
774 guarantee(ik->fields()->is_perm(), "should be in permspace"); | |
775 guarantee(ik->fields()->is_typeArray(), "should be type array"); | |
776 guarantee(ik->constants()->is_perm(), "should be in permspace"); | |
777 guarantee(ik->constants()->is_constantPool(), "should be constant pool"); | |
778 guarantee(ik->inner_classes()->is_perm(), "should be in permspace"); | |
779 guarantee(ik->inner_classes()->is_typeArray(), "should be type array"); | |
780 if (ik->source_file_name() != NULL) { | |
781 guarantee(ik->source_file_name()->is_perm(), "should be in permspace"); | |
782 guarantee(ik->source_file_name()->is_symbol(), "should be symbol"); | |
783 } | |
784 if (ik->source_debug_extension() != NULL) { | |
785 guarantee(ik->source_debug_extension()->is_perm(), "should be in permspace"); | |
786 guarantee(ik->source_debug_extension()->is_symbol(), "should be symbol"); | |
787 } | |
788 if (ik->protection_domain() != NULL) { | |
789 guarantee(ik->protection_domain()->is_oop(), "should be oop"); | |
790 } | |
431
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791 if (ik->host_klass() != NULL) { |
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792 guarantee(ik->host_klass()->is_oop(), "should be oop"); |
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793 } |
0 | 794 if (ik->signers() != NULL) { |
795 guarantee(ik->signers()->is_objArray(), "should be obj array"); | |
796 } | |
797 if (ik->generic_signature() != NULL) { | |
798 guarantee(ik->generic_signature()->is_perm(), "should be in permspace"); | |
799 guarantee(ik->generic_signature()->is_symbol(), "should be symbol"); | |
800 } | |
801 if (ik->class_annotations() != NULL) { | |
802 guarantee(ik->class_annotations()->is_typeArray(), "should be type array"); | |
803 } | |
804 if (ik->fields_annotations() != NULL) { | |
805 guarantee(ik->fields_annotations()->is_objArray(), "should be obj array"); | |
806 } | |
807 if (ik->methods_annotations() != NULL) { | |
808 guarantee(ik->methods_annotations()->is_objArray(), "should be obj array"); | |
809 } | |
810 if (ik->methods_parameter_annotations() != NULL) { | |
811 guarantee(ik->methods_parameter_annotations()->is_objArray(), "should be obj array"); | |
812 } | |
813 if (ik->methods_default_annotations() != NULL) { | |
814 guarantee(ik->methods_default_annotations()->is_objArray(), "should be obj array"); | |
815 } | |
816 } | |
817 } | |
818 | |
819 | |
820 bool instanceKlassKlass::oop_partially_loaded(oop obj) const { | |
821 assert(obj->is_klass(), "object must be klass"); | |
822 instanceKlass* ik = instanceKlass::cast(klassOop(obj)); | |
823 assert(ik->oop_is_instance(), "object must be instanceKlass"); | |
824 return ik->transitive_interfaces() == (objArrayOop) obj; // Check whether transitive_interfaces points to self | |
825 } | |
826 | |
827 | |
828 // The transitive_interfaces is the last field set when loading an object. | |
829 void instanceKlassKlass::oop_set_partially_loaded(oop obj) { | |
830 assert(obj->is_klass(), "object must be klass"); | |
831 instanceKlass* ik = instanceKlass::cast(klassOop(obj)); | |
832 // Set the layout helper to a place-holder value, until fuller initialization. | |
833 // (This allows asserts in oop_is_instance to succeed.) | |
834 ik->set_layout_helper(Klass::instance_layout_helper(0, true)); | |
835 assert(ik->oop_is_instance(), "object must be instanceKlass"); | |
836 assert(ik->transitive_interfaces() == NULL, "just checking"); | |
837 ik->set_transitive_interfaces((objArrayOop) obj); // Temporarily set transitive_interfaces to point to self | |
838 } |