Mercurial > hg > graal-compiler
annotate src/share/vm/oops/instanceKlassKlass.cpp @ 1711:a6bff45449bc
6973570: OrderAccess::storestore() scales poorly on multi-socket x64 and sparc: cache-line ping-ponging
Summary: volatile store to static variable removed in favour of a volatile store to stack to avoid excessive cache coherency traffic; verified that the volatile store is not elided by any of our current compilers.
Reviewed-by: dholmes, dice, jcoomes, kvn
author | ysr |
---|---|
date | Tue, 10 Aug 2010 14:53:35 -0700 |
parents | 9d7a8ab3736b |
children | f95d63e2154a |
rev | line source |
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0 | 1 /* |
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2 * Copyright (c) 1997, 2009, Oracle and/or its affiliates. All rights reserved. |
0 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
4 * | |
5 * This code is free software; you can redistribute it and/or modify it | |
6 * under the terms of the GNU General Public License version 2 only, as | |
7 * published by the Free Software Foundation. | |
8 * | |
9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
12 * version 2 for more details (a copy is included in the LICENSE file that | |
13 * accompanied this code). | |
14 * | |
15 * You should have received a copy of the GNU General Public License version | |
16 * 2 along with this work; if not, write to the Free Software Foundation, | |
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
18 * | |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
0 | 22 * |
23 */ | |
24 | |
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()); | |
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87 MarkSweep::mark_and_push(ik->adr_bootstrap_method()); |
0 | 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()); | |
93 | |
94 // We do not follow adr_implementors() here. It is followed later | |
95 // in instanceKlass::follow_weak_klass_links() | |
96 | |
97 klassKlass::oop_follow_contents(obj); | |
98 | |
99 iterate_c_heap_oops(ik, &MarkSweep::mark_and_push_closure); | |
100 } | |
101 | |
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"); | |
107 | |
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); | |
112 | |
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()); | |
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125 PSParallelCompact::mark_and_push(cm, ik->adr_host_klass()); |
0 | 126 PSParallelCompact::mark_and_push(cm, ik->adr_signers()); |
127 PSParallelCompact::mark_and_push(cm, ik->adr_generic_signature()); | |
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128 PSParallelCompact::mark_and_push(cm, ik->adr_bootstrap_method()); |
0 | 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()); | |
134 | |
135 // We do not follow adr_implementor() here. It is followed later | |
136 // in instanceKlass::follow_weak_klass_links() | |
137 | |
138 klassKlass::oop_follow_contents(cm, obj); | |
139 | |
140 PSParallelCompact::MarkAndPushClosure mark_and_push_closure(cm); | |
141 iterate_c_heap_oops(ik, &mark_and_push_closure); | |
142 } | |
143 #endif // SERIALGC | |
144 | |
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(); | |
152 | |
153 ik->iterate_static_fields(blk); | |
154 ik->vtable()->oop_oop_iterate(blk); | |
155 ik->itable()->oop_oop_iterate(blk); | |
156 | |
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()); | |
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166 blk->do_oop(ik->adr_host_klass()); |
0 | 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()); | |
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175 blk->do_oop(ik->adr_bootstrap_method()); |
0 | 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()); | |
181 | |
182 klassKlass::oop_oop_iterate(obj, blk); | |
183 | |
184 if(ik->oop_map_cache() != NULL) ik->oop_map_cache()->oop_iterate(blk); | |
185 return size; | |
186 } | |
187 | |
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(); | |
196 | |
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); | |
200 | |
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); | |
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220 adr = ik->adr_host_klass(); |
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221 if (mr.contains(adr)) blk->do_oop(adr); |
0 | 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); | |
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236 adr = ik->adr_bootstrap_method(); |
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237 if (mr.contains(adr)) blk->do_oop(adr); |
0 | 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); | |
248 | |
249 klassKlass::oop_oop_iterate_m(obj, blk, mr); | |
250 | |
251 if(ik->oop_map_cache() != NULL) ik->oop_map_cache()->oop_iterate(blk, mr); | |
252 return size; | |
253 } | |
254 | |
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"); | |
258 | |
259 instanceKlass* ik = instanceKlass::cast(klassOop(obj)); | |
260 ik->adjust_static_fields(); | |
261 ik->vtable()->oop_adjust_pointers(); | |
262 ik->itable()->oop_adjust_pointers(); | |
263 | |
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()); | |
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273 MarkSweep::adjust_pointer(ik->adr_host_klass()); |
0 | 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()); | |
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282 MarkSweep::adjust_pointer(ik->adr_bootstrap_method()); |
0 | 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()); | |
288 | |
289 iterate_c_heap_oops(ik, &MarkSweep::adjust_root_pointer_closure); | |
290 | |
291 return klassKlass::oop_adjust_pointers(obj); | |
292 } | |
293 | |
294 #ifndef SERIALGC | |
295 void instanceKlassKlass::oop_push_contents(PSPromotionManager* pm, oop obj) { | |
296 instanceKlass* ik = instanceKlass::cast(klassOop(obj)); | |
297 ik->push_static_fields(pm); | |
298 | |
299 oop* loader_addr = ik->adr_class_loader(); | |
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300 if (PSScavenge::should_scavenge(loader_addr)) { |
0 | 301 pm->claim_or_forward_depth(loader_addr); |
302 } | |
303 | |
304 oop* pd_addr = ik->adr_protection_domain(); | |
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305 if (PSScavenge::should_scavenge(pd_addr)) { |
0 | 306 pm->claim_or_forward_depth(pd_addr); |
307 } | |
308 | |
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309 oop* hk_addr = ik->adr_host_klass(); |
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310 if (PSScavenge::should_scavenge(hk_addr)) { |
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311 pm->claim_or_forward_depth(hk_addr); |
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312 } |
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313 |
0 | 314 oop* sg_addr = ik->adr_signers(); |
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315 if (PSScavenge::should_scavenge(sg_addr)) { |
0 | 316 pm->claim_or_forward_depth(sg_addr); |
317 } | |
318 | |
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319 oop* bsm_addr = ik->adr_bootstrap_method(); |
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320 if (PSScavenge::should_scavenge(bsm_addr)) { |
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321 pm->claim_or_forward_depth(bsm_addr); |
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322 } |
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323 |
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324 klassKlass::oop_push_contents(pm, obj); |
0 | 325 } |
326 | |
327 int instanceKlassKlass::oop_update_pointers(ParCompactionManager* cm, oop obj) { | |
328 assert(obj->is_klass(),"must be a klass"); | |
329 assert(klassOop(obj)->klass_part()->oop_is_instance_slow(), | |
330 "must be instance klass"); | |
331 | |
332 instanceKlass* ik = instanceKlass::cast(klassOop(obj)); | |
333 ik->update_static_fields(); | |
334 ik->vtable()->oop_update_pointers(cm); | |
335 ik->itable()->oop_update_pointers(cm); | |
336 | |
337 oop* const beg_oop = ik->oop_block_beg(); | |
338 oop* const end_oop = ik->oop_block_end(); | |
339 for (oop* cur_oop = beg_oop; cur_oop < end_oop; ++cur_oop) { | |
340 PSParallelCompact::adjust_pointer(cur_oop); | |
341 } | |
342 | |
343 OopClosure* closure = PSParallelCompact::adjust_root_pointer_closure(); | |
344 iterate_c_heap_oops(ik, closure); | |
345 | |
346 klassKlass::oop_update_pointers(cm, obj); | |
347 return ik->object_size(); | |
348 } | |
349 | |
350 int instanceKlassKlass::oop_update_pointers(ParCompactionManager* cm, oop obj, | |
351 HeapWord* beg_addr, | |
352 HeapWord* end_addr) { | |
353 assert(obj->is_klass(),"must be a klass"); | |
354 assert(klassOop(obj)->klass_part()->oop_is_instance_slow(), | |
355 "must be instance klass"); | |
356 | |
357 instanceKlass* ik = instanceKlass::cast(klassOop(obj)); | |
358 ik->update_static_fields(beg_addr, end_addr); | |
359 ik->vtable()->oop_update_pointers(cm, beg_addr, end_addr); | |
360 ik->itable()->oop_update_pointers(cm, beg_addr, end_addr); | |
361 | |
362 oop* const beg_oop = MAX2((oop*)beg_addr, ik->oop_block_beg()); | |
363 oop* const end_oop = MIN2((oop*)end_addr, ik->oop_block_end()); | |
364 for (oop* cur_oop = beg_oop; cur_oop < end_oop; ++cur_oop) { | |
365 PSParallelCompact::adjust_pointer(cur_oop); | |
366 } | |
367 | |
368 // The oop_map_cache, jni_ids and jni_id_map are allocated from the C heap, | |
369 // and so don't lie within any 'Chunk' boundaries. Update them when the | |
370 // lowest addressed oop in the instanceKlass 'oop_block' is updated. | |
371 if (beg_oop == ik->oop_block_beg()) { | |
372 OopClosure* closure = PSParallelCompact::adjust_root_pointer_closure(); | |
373 iterate_c_heap_oops(ik, closure); | |
374 } | |
375 | |
376 klassKlass::oop_update_pointers(cm, obj, beg_addr, end_addr); | |
377 return ik->object_size(); | |
378 } | |
379 #endif // SERIALGC | |
380 | |
938 | 381 klassOop |
382 instanceKlassKlass::allocate_instance_klass(int vtable_len, int itable_len, | |
383 int static_field_size, | |
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384 unsigned nonstatic_oop_map_count, |
938 | 385 ReferenceType rt, TRAPS) { |
0 | 386 |
938 | 387 const int nonstatic_oop_map_size = |
388 instanceKlass::nonstatic_oop_map_size(nonstatic_oop_map_count); | |
0 | 389 int size = instanceKlass::object_size(align_object_offset(vtable_len) + align_object_offset(itable_len) + static_field_size + nonstatic_oop_map_size); |
390 | |
391 // Allocation | |
392 KlassHandle h_this_klass(THREAD, as_klassOop()); | |
393 KlassHandle k; | |
394 if (rt == REF_NONE) { | |
395 // regular klass | |
396 instanceKlass o; | |
397 k = base_create_klass(h_this_klass, size, o.vtbl_value(), CHECK_NULL); | |
398 } else { | |
399 // reference klass | |
400 instanceRefKlass o; | |
401 k = base_create_klass(h_this_klass, size, o.vtbl_value(), CHECK_NULL); | |
402 } | |
403 { | |
404 No_Safepoint_Verifier no_safepoint; // until k becomes parsable | |
405 instanceKlass* ik = (instanceKlass*) k()->klass_part(); | |
406 assert(!k()->is_parsable(), "not expecting parsability yet."); | |
407 | |
408 // The sizes of these these three variables are used for determining the | |
409 // size of the instanceKlassOop. It is critical that these are set to the right | |
410 // sizes before the first GC, i.e., when we allocate the mirror. | |
411 ik->set_vtable_length(vtable_len); | |
412 ik->set_itable_length(itable_len); | |
413 ik->set_static_field_size(static_field_size); | |
414 ik->set_nonstatic_oop_map_size(nonstatic_oop_map_size); | |
415 assert(k()->size() == size, "wrong size for object"); | |
416 | |
417 ik->set_array_klasses(NULL); | |
418 ik->set_methods(NULL); | |
419 ik->set_method_ordering(NULL); | |
420 ik->set_local_interfaces(NULL); | |
421 ik->set_transitive_interfaces(NULL); | |
422 ik->init_implementor(); | |
423 ik->set_fields(NULL); | |
424 ik->set_constants(NULL); | |
425 ik->set_class_loader(NULL); | |
426 ik->set_protection_domain(NULL); | |
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427 ik->set_host_klass(NULL); |
0 | 428 ik->set_signers(NULL); |
429 ik->set_source_file_name(NULL); | |
430 ik->set_source_debug_extension(NULL); | |
431 ik->set_inner_classes(NULL); | |
432 ik->set_static_oop_field_size(0); | |
433 ik->set_nonstatic_field_size(0); | |
975 | 434 ik->set_is_marked_dependent(false); |
0 | 435 ik->set_init_state(instanceKlass::allocated); |
436 ik->set_init_thread(NULL); | |
437 ik->set_reference_type(rt); | |
438 ik->set_oop_map_cache(NULL); | |
439 ik->set_jni_ids(NULL); | |
440 ik->set_osr_nmethods_head(NULL); | |
441 ik->set_breakpoints(NULL); | |
442 ik->init_previous_versions(); | |
443 ik->set_generic_signature(NULL); | |
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444 ik->set_bootstrap_method(NULL); |
0 | 445 ik->release_set_methods_jmethod_ids(NULL); |
446 ik->release_set_methods_cached_itable_indices(NULL); | |
447 ik->set_class_annotations(NULL); | |
448 ik->set_fields_annotations(NULL); | |
449 ik->set_methods_annotations(NULL); | |
450 ik->set_methods_parameter_annotations(NULL); | |
451 ik->set_methods_default_annotations(NULL); | |
452 ik->set_enclosing_method_indices(0, 0); | |
453 ik->set_jvmti_cached_class_field_map(NULL); | |
454 ik->set_initial_method_idnum(0); | |
455 assert(k()->is_parsable(), "should be parsable here."); | |
456 | |
457 // initialize the non-header words to zero | |
458 intptr_t* p = (intptr_t*)k(); | |
459 for (int index = instanceKlass::header_size(); index < size; index++) { | |
460 p[index] = NULL_WORD; | |
461 } | |
462 | |
463 // To get verify to work - must be set to partial loaded before first GC point. | |
464 k()->set_partially_loaded(); | |
465 } | |
466 | |
467 // GC can happen here | |
468 java_lang_Class::create_mirror(k, CHECK_NULL); // Allocate mirror | |
469 return k(); | |
470 } | |
471 | |
472 | |
473 | |
474 #ifndef PRODUCT | |
475 | |
476 // Printing | |
477 | |
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478 #define BULLET " - " |
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479 |
0 | 480 static const char* state_names[] = { |
481 "unparseable_by_gc", "allocated", "loaded", "linked", "being_initialized", "fully_initialized", "initialization_error" | |
482 }; | |
483 | |
484 | |
485 void instanceKlassKlass::oop_print_on(oop obj, outputStream* st) { | |
486 assert(obj->is_klass(), "must be klass"); | |
487 instanceKlass* ik = instanceKlass::cast(klassOop(obj)); | |
488 klassKlass::oop_print_on(obj, st); | |
489 | |
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490 st->print(BULLET"instance size: %d", ik->size_helper()); st->cr(); |
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491 st->print(BULLET"klass size: %d", ik->object_size()); st->cr(); |
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492 st->print(BULLET"access: "); ik->access_flags().print_on(st); st->cr(); |
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493 st->print(BULLET"state: "); st->print_cr(state_names[ik->_init_state]); |
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494 st->print(BULLET"name: "); ik->name()->print_value_on(st); st->cr(); |
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495 st->print(BULLET"super: "); ik->super()->print_value_on(st); st->cr(); |
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496 st->print(BULLET"sub: "); |
0 | 497 Klass* sub = ik->subklass(); |
498 int n; | |
499 for (n = 0; sub != NULL; n++, sub = sub->next_sibling()) { | |
500 if (n < MaxSubklassPrintSize) { | |
501 sub->as_klassOop()->print_value_on(st); | |
502 st->print(" "); | |
503 } | |
504 } | |
505 if (n >= MaxSubklassPrintSize) st->print("(%d more klasses...)", n - MaxSubklassPrintSize); | |
506 st->cr(); | |
507 | |
508 if (ik->is_interface()) { | |
665
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509 st->print_cr(BULLET"nof implementors: %d", ik->nof_implementors()); |
0 | 510 int print_impl = 0; |
511 for (int i = 0; i < instanceKlass::implementors_limit; i++) { | |
512 if (ik->implementor(i) != NULL) { | |
513 if (++print_impl == 1) | |
665
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514 st->print_cr(BULLET"implementor: "); |
0 | 515 st->print(" "); |
516 ik->implementor(i)->print_value_on(st); | |
517 } | |
518 } | |
519 if (print_impl > 0) st->cr(); | |
520 } | |
521 | |
665
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522 st->print(BULLET"arrays: "); ik->array_klasses()->print_value_on(st); st->cr(); |
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523 st->print(BULLET"methods: "); ik->methods()->print_value_on(st); st->cr(); |
0 | 524 if (Verbose) { |
525 objArrayOop methods = ik->methods(); | |
526 for(int i = 0; i < methods->length(); i++) { | |
527 tty->print("%d : ", i); methods->obj_at(i)->print_value(); tty->cr(); | |
528 } | |
529 } | |
665
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530 st->print(BULLET"method ordering: "); ik->method_ordering()->print_value_on(st); st->cr(); |
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531 st->print(BULLET"local interfaces: "); ik->local_interfaces()->print_value_on(st); st->cr(); |
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532 st->print(BULLET"trans. interfaces: "); ik->transitive_interfaces()->print_value_on(st); st->cr(); |
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533 st->print(BULLET"constants: "); ik->constants()->print_value_on(st); st->cr(); |
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534 st->print(BULLET"class loader: "); ik->class_loader()->print_value_on(st); st->cr(); |
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535 st->print(BULLET"protection domain: "); ik->protection_domain()->print_value_on(st); st->cr(); |
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536 st->print(BULLET"host class: "); ik->host_klass()->print_value_on(st); st->cr(); |
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537 st->print(BULLET"signers: "); ik->signers()->print_value_on(st); st->cr(); |
0 | 538 if (ik->source_file_name() != NULL) { |
665
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539 st->print(BULLET"source file: "); |
0 | 540 ik->source_file_name()->print_value_on(st); |
541 st->cr(); | |
542 } | |
543 if (ik->source_debug_extension() != NULL) { | |
665
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544 st->print(BULLET"source debug extension: "); |
0 | 545 ik->source_debug_extension()->print_value_on(st); |
546 st->cr(); | |
547 } | |
548 | |
549 { | |
550 ResourceMark rm; | |
551 // PreviousVersionInfo objects returned via PreviousVersionWalker | |
552 // contain a GrowableArray of handles. We have to clean up the | |
553 // GrowableArray _after_ the PreviousVersionWalker destructor | |
554 // has destroyed the handles. | |
555 { | |
665
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556 bool have_pv = false; |
0 | 557 PreviousVersionWalker pvw(ik); |
558 for (PreviousVersionInfo * pv_info = pvw.next_previous_version(); | |
559 pv_info != NULL; pv_info = pvw.next_previous_version()) { | |
665
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560 if (!have_pv) |
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561 st->print(BULLET"previous version: "); |
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562 have_pv = true; |
0 | 563 pv_info->prev_constant_pool_handle()()->print_value_on(st); |
564 } | |
665
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565 if (have_pv) st->cr(); |
0 | 566 } // pvw is cleaned up |
567 } // rm is cleaned up | |
568 | |
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569 if (ik->bootstrap_method() != NULL) { |
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570 st->print(BULLET"bootstrap method: "); |
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571 ik->bootstrap_method()->print_value_on(st); |
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572 st->cr(); |
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573 } |
0 | 574 if (ik->generic_signature() != NULL) { |
665
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575 st->print(BULLET"generic signature: "); |
0 | 576 ik->generic_signature()->print_value_on(st); |
665
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577 st->cr(); |
0 | 578 } |
665
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579 st->print(BULLET"inner classes: "); ik->inner_classes()->print_value_on(st); st->cr(); |
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580 st->print(BULLET"java mirror: "); ik->java_mirror()->print_value_on(st); st->cr(); |
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581 st->print(BULLET"vtable length %d (start addr: " INTPTR_FORMAT ")", ik->vtable_length(), ik->start_of_vtable()); st->cr(); |
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582 st->print(BULLET"itable length %d (start addr: " INTPTR_FORMAT ")", ik->itable_length(), ik->start_of_itable()); st->cr(); |
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583 st->print_cr(BULLET"---- static fields (%d words):", ik->static_field_size()); |
0 | 584 FieldPrinter print_static_field(st); |
585 ik->do_local_static_fields(&print_static_field); | |
665
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586 st->print_cr(BULLET"---- non-static fields (%d words):", ik->nonstatic_field_size()); |
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587 FieldPrinter print_nonstatic_field(st); |
0 | 588 ik->do_nonstatic_fields(&print_nonstatic_field); |
589 | |
665
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590 st->print(BULLET"static oop maps: "); |
0 | 591 if (ik->static_oop_field_size() > 0) { |
592 int first_offset = ik->offset_of_static_fields(); | |
593 st->print("%d-%d", first_offset, first_offset + ik->static_oop_field_size() - 1); | |
594 } | |
595 st->cr(); | |
596 | |
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597 st->print(BULLET"non-static oop maps: "); |
0 | 598 OopMapBlock* map = ik->start_of_nonstatic_oop_maps(); |
938 | 599 OopMapBlock* end_map = map + ik->nonstatic_oop_map_count(); |
0 | 600 while (map < end_map) { |
938 | 601 st->print("%d-%d ", map->offset(), map->offset() + heapOopSize*(map->count() - 1)); |
0 | 602 map++; |
603 } | |
604 st->cr(); | |
605 } | |
606 | |
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607 #endif //PRODUCT |
0 | 608 |
609 void instanceKlassKlass::oop_print_value_on(oop obj, outputStream* st) { | |
610 assert(obj->is_klass(), "must be klass"); | |
611 instanceKlass* ik = instanceKlass::cast(klassOop(obj)); | |
612 ik->name()->print_value_on(st); | |
613 } | |
614 | |
615 const char* instanceKlassKlass::internal_name() const { | |
616 return "{instance class}"; | |
617 } | |
618 | |
619 // Verification | |
620 | |
621 class VerifyFieldClosure: public OopClosure { | |
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622 protected: |
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623 template <class T> void do_oop_work(T* p) { |
0 | 624 guarantee(Universe::heap()->is_in(p), "should be in heap"); |
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625 oop obj = oopDesc::load_decode_heap_oop(p); |
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626 guarantee(obj->is_oop_or_null(), "should be in heap"); |
0 | 627 } |
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628 public: |
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629 virtual void do_oop(oop* p) { VerifyFieldClosure::do_oop_work(p); } |
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630 virtual void do_oop(narrowOop* p) { VerifyFieldClosure::do_oop_work(p); } |
0 | 631 }; |
632 | |
633 void instanceKlassKlass::oop_verify_on(oop obj, outputStream* st) { | |
634 klassKlass::oop_verify_on(obj, st); | |
635 if (!obj->partially_loaded()) { | |
636 Thread *thread = Thread::current(); | |
637 instanceKlass* ik = instanceKlass::cast(klassOop(obj)); | |
638 | |
639 #ifndef PRODUCT | |
640 // Avoid redundant verifies | |
641 if (ik->_verify_count == Universe::verify_count()) return; | |
642 ik->_verify_count = Universe::verify_count(); | |
643 #endif | |
644 // Verify that klass is present in SystemDictionary | |
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645 if (ik->is_loaded() && !ik->is_anonymous()) { |
0 | 646 symbolHandle h_name (thread, ik->name()); |
647 Handle h_loader (thread, ik->class_loader()); | |
648 Handle h_obj(thread, obj); | |
649 SystemDictionary::verify_obj_klass_present(h_obj, h_name, h_loader); | |
650 } | |
651 | |
652 // Verify static fields | |
653 VerifyFieldClosure blk; | |
654 ik->iterate_static_fields(&blk); | |
655 | |
656 // Verify vtables | |
657 if (ik->is_linked()) { | |
658 ResourceMark rm(thread); | |
659 // $$$ This used to be done only for m/s collections. Doing it | |
660 // always seemed a valid generalization. (DLD -- 6/00) | |
661 ik->vtable()->verify(st); | |
662 } | |
663 | |
664 // Verify oop map cache | |
665 if (ik->oop_map_cache() != NULL) { | |
666 ik->oop_map_cache()->verify(); | |
667 } | |
668 | |
669 // Verify first subklass | |
670 if (ik->subklass_oop() != NULL) { | |
671 guarantee(ik->subklass_oop()->is_perm(), "should be in permspace"); | |
672 guarantee(ik->subklass_oop()->is_klass(), "should be klass"); | |
673 } | |
674 | |
675 // Verify siblings | |
676 klassOop super = ik->super(); | |
677 Klass* sib = ik->next_sibling(); | |
678 int sib_count = 0; | |
679 while (sib != NULL) { | |
680 if (sib == ik) { | |
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681 fatal(err_msg("subclass cycle of length %d", sib_count)); |
0 | 682 } |
683 if (sib_count >= 100000) { | |
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684 fatal(err_msg("suspiciously long subclass list %d", sib_count)); |
0 | 685 } |
686 guarantee(sib->as_klassOop()->is_klass(), "should be klass"); | |
687 guarantee(sib->as_klassOop()->is_perm(), "should be in permspace"); | |
688 guarantee(sib->super() == super, "siblings should have same superklass"); | |
689 sib = sib->next_sibling(); | |
690 } | |
691 | |
692 // Verify implementor fields | |
693 bool saw_null_impl = false; | |
694 for (int i = 0; i < instanceKlass::implementors_limit; i++) { | |
695 klassOop im = ik->implementor(i); | |
696 if (im == NULL) { saw_null_impl = true; continue; } | |
697 guarantee(!saw_null_impl, "non-nulls must preceded all nulls"); | |
698 guarantee(ik->is_interface(), "only interfaces should have implementor set"); | |
699 guarantee(i < ik->nof_implementors(), "should only have one implementor"); | |
700 guarantee(im->is_perm(), "should be in permspace"); | |
701 guarantee(im->is_klass(), "should be klass"); | |
702 guarantee(!Klass::cast(klassOop(im))->is_interface(), "implementors cannot be interfaces"); | |
703 } | |
704 | |
705 // Verify local interfaces | |
706 objArrayOop local_interfaces = ik->local_interfaces(); | |
707 guarantee(local_interfaces->is_perm(), "should be in permspace"); | |
708 guarantee(local_interfaces->is_objArray(), "should be obj array"); | |
709 int j; | |
710 for (j = 0; j < local_interfaces->length(); j++) { | |
711 oop e = local_interfaces->obj_at(j); | |
712 guarantee(e->is_klass() && Klass::cast(klassOop(e))->is_interface(), "invalid local interface"); | |
713 } | |
714 | |
715 // Verify transitive interfaces | |
716 objArrayOop transitive_interfaces = ik->transitive_interfaces(); | |
717 guarantee(transitive_interfaces->is_perm(), "should be in permspace"); | |
718 guarantee(transitive_interfaces->is_objArray(), "should be obj array"); | |
719 for (j = 0; j < transitive_interfaces->length(); j++) { | |
720 oop e = transitive_interfaces->obj_at(j); | |
721 guarantee(e->is_klass() && Klass::cast(klassOop(e))->is_interface(), "invalid transitive interface"); | |
722 } | |
723 | |
724 // Verify methods | |
725 objArrayOop methods = ik->methods(); | |
726 guarantee(methods->is_perm(), "should be in permspace"); | |
727 guarantee(methods->is_objArray(), "should be obj array"); | |
728 for (j = 0; j < methods->length(); j++) { | |
729 guarantee(methods->obj_at(j)->is_method(), "non-method in methods array"); | |
730 } | |
731 for (j = 0; j < methods->length() - 1; j++) { | |
732 methodOop m1 = methodOop(methods->obj_at(j)); | |
733 methodOop m2 = methodOop(methods->obj_at(j + 1)); | |
734 guarantee(m1->name()->fast_compare(m2->name()) <= 0, "methods not sorted correctly"); | |
735 } | |
736 | |
737 // Verify method ordering | |
738 typeArrayOop method_ordering = ik->method_ordering(); | |
739 guarantee(method_ordering->is_perm(), "should be in permspace"); | |
740 guarantee(method_ordering->is_typeArray(), "should be type array"); | |
741 int length = method_ordering->length(); | |
742 if (JvmtiExport::can_maintain_original_method_order()) { | |
743 guarantee(length == methods->length(), "invalid method ordering length"); | |
744 jlong sum = 0; | |
745 for (j = 0; j < length; j++) { | |
746 int original_index = method_ordering->int_at(j); | |
747 guarantee(original_index >= 0 && original_index < length, "invalid method ordering index"); | |
748 sum += original_index; | |
749 } | |
750 // Verify sum of indices 0,1,...,length-1 | |
751 guarantee(sum == ((jlong)length*(length-1))/2, "invalid method ordering sum"); | |
752 } else { | |
753 guarantee(length == 0, "invalid method ordering length"); | |
754 } | |
755 | |
756 // Verify JNI static field identifiers | |
757 if (ik->jni_ids() != NULL) { | |
758 ik->jni_ids()->verify(ik->as_klassOop()); | |
759 } | |
760 | |
761 // Verify other fields | |
762 if (ik->array_klasses() != NULL) { | |
763 guarantee(ik->array_klasses()->is_perm(), "should be in permspace"); | |
764 guarantee(ik->array_klasses()->is_klass(), "should be klass"); | |
765 } | |
766 guarantee(ik->fields()->is_perm(), "should be in permspace"); | |
767 guarantee(ik->fields()->is_typeArray(), "should be type array"); | |
768 guarantee(ik->constants()->is_perm(), "should be in permspace"); | |
769 guarantee(ik->constants()->is_constantPool(), "should be constant pool"); | |
770 guarantee(ik->inner_classes()->is_perm(), "should be in permspace"); | |
771 guarantee(ik->inner_classes()->is_typeArray(), "should be type array"); | |
772 if (ik->source_file_name() != NULL) { | |
773 guarantee(ik->source_file_name()->is_perm(), "should be in permspace"); | |
774 guarantee(ik->source_file_name()->is_symbol(), "should be symbol"); | |
775 } | |
776 if (ik->source_debug_extension() != NULL) { | |
777 guarantee(ik->source_debug_extension()->is_perm(), "should be in permspace"); | |
778 guarantee(ik->source_debug_extension()->is_symbol(), "should be symbol"); | |
779 } | |
780 if (ik->protection_domain() != NULL) { | |
781 guarantee(ik->protection_domain()->is_oop(), "should be oop"); | |
782 } | |
431
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783 if (ik->host_klass() != NULL) { |
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784 guarantee(ik->host_klass()->is_oop(), "should be oop"); |
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785 } |
0 | 786 if (ik->signers() != NULL) { |
787 guarantee(ik->signers()->is_objArray(), "should be obj array"); | |
788 } | |
789 if (ik->generic_signature() != NULL) { | |
790 guarantee(ik->generic_signature()->is_perm(), "should be in permspace"); | |
791 guarantee(ik->generic_signature()->is_symbol(), "should be symbol"); | |
792 } | |
793 if (ik->class_annotations() != NULL) { | |
794 guarantee(ik->class_annotations()->is_typeArray(), "should be type array"); | |
795 } | |
796 if (ik->fields_annotations() != NULL) { | |
797 guarantee(ik->fields_annotations()->is_objArray(), "should be obj array"); | |
798 } | |
799 if (ik->methods_annotations() != NULL) { | |
800 guarantee(ik->methods_annotations()->is_objArray(), "should be obj array"); | |
801 } | |
802 if (ik->methods_parameter_annotations() != NULL) { | |
803 guarantee(ik->methods_parameter_annotations()->is_objArray(), "should be obj array"); | |
804 } | |
805 if (ik->methods_default_annotations() != NULL) { | |
806 guarantee(ik->methods_default_annotations()->is_objArray(), "should be obj array"); | |
807 } | |
808 } | |
809 } | |
810 | |
811 | |
812 bool instanceKlassKlass::oop_partially_loaded(oop obj) const { | |
813 assert(obj->is_klass(), "object must be klass"); | |
814 instanceKlass* ik = instanceKlass::cast(klassOop(obj)); | |
815 assert(ik->oop_is_instance(), "object must be instanceKlass"); | |
816 return ik->transitive_interfaces() == (objArrayOop) obj; // Check whether transitive_interfaces points to self | |
817 } | |
818 | |
819 | |
820 // The transitive_interfaces is the last field set when loading an object. | |
821 void instanceKlassKlass::oop_set_partially_loaded(oop obj) { | |
822 assert(obj->is_klass(), "object must be klass"); | |
823 instanceKlass* ik = instanceKlass::cast(klassOop(obj)); | |
824 // Set the layout helper to a place-holder value, until fuller initialization. | |
825 // (This allows asserts in oop_is_instance to succeed.) | |
826 ik->set_layout_helper(Klass::instance_layout_helper(0, true)); | |
827 assert(ik->oop_is_instance(), "object must be instanceKlass"); | |
828 assert(ik->transitive_interfaces() == NULL, "just checking"); | |
829 ik->set_transitive_interfaces((objArrayOop) obj); // Temporarily set transitive_interfaces to point to self | |
830 } |