1 /* |
1 /* |
2 * Copyright (c) 2005, 2012, Oracle and/or its affiliates. All rights reserved. |
2 * Copyright (c) 2005, 2013, Oracle and/or its affiliates. All rights reserved. |
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
4 * |
4 * |
5 * This code is free software; you can redistribute it and/or modify it |
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 |
6 * under the terms of the GNU General Public License version 2 only, as |
7 * published by the Free Software Foundation. |
7 * published by the Free Software Foundation. |
159 markOop unbiased_prototype = markOopDesc::prototype()->set_age(age); |
159 markOop unbiased_prototype = markOopDesc::prototype()->set_age(age); |
160 |
160 |
161 if (TraceBiasedLocking && (Verbose || !is_bulk)) { |
161 if (TraceBiasedLocking && (Verbose || !is_bulk)) { |
162 ResourceMark rm; |
162 ResourceMark rm; |
163 tty->print_cr("Revoking bias of object " INTPTR_FORMAT " , mark " INTPTR_FORMAT " , type %s , prototype header " INTPTR_FORMAT " , allow rebias %d , requesting thread " INTPTR_FORMAT, |
163 tty->print_cr("Revoking bias of object " INTPTR_FORMAT " , mark " INTPTR_FORMAT " , type %s , prototype header " INTPTR_FORMAT " , allow rebias %d , requesting thread " INTPTR_FORMAT, |
164 (intptr_t) obj, (intptr_t) mark, obj->klass()->external_name(), (intptr_t) obj->klass()->prototype_header(), (allow_rebias ? 1 : 0), (intptr_t) requesting_thread); |
164 (void *)obj, (intptr_t) mark, obj->klass()->external_name(), (intptr_t) obj->klass()->prototype_header(), (allow_rebias ? 1 : 0), (intptr_t) requesting_thread); |
165 } |
165 } |
166 |
166 |
167 JavaThread* biased_thread = mark->biased_locker(); |
167 JavaThread* biased_thread = mark->biased_locker(); |
168 if (biased_thread == NULL) { |
168 if (biased_thread == NULL) { |
169 // Object is anonymously biased. We can get here if, for |
169 // Object is anonymously biased. We can get here if, for |
212 for (int i = 0; i < cached_monitor_info->length(); i++) { |
212 for (int i = 0; i < cached_monitor_info->length(); i++) { |
213 MonitorInfo* mon_info = cached_monitor_info->at(i); |
213 MonitorInfo* mon_info = cached_monitor_info->at(i); |
214 if (mon_info->owner() == obj) { |
214 if (mon_info->owner() == obj) { |
215 if (TraceBiasedLocking && Verbose) { |
215 if (TraceBiasedLocking && Verbose) { |
216 tty->print_cr(" mon_info->owner (" PTR_FORMAT ") == obj (" PTR_FORMAT ")", |
216 tty->print_cr(" mon_info->owner (" PTR_FORMAT ") == obj (" PTR_FORMAT ")", |
217 (intptr_t) mon_info->owner(), |
217 (void *) mon_info->owner(), |
218 (intptr_t) obj); |
218 (void *) obj); |
219 } |
219 } |
220 // Assume recursive case and fix up highest lock later |
220 // Assume recursive case and fix up highest lock later |
221 markOop mark = markOopDesc::encode((BasicLock*) NULL); |
221 markOop mark = markOopDesc::encode((BasicLock*) NULL); |
222 highest_lock = mon_info->lock(); |
222 highest_lock = mon_info->lock(); |
223 highest_lock->set_displaced_header(mark); |
223 highest_lock->set_displaced_header(mark); |
224 } else { |
224 } else { |
225 if (TraceBiasedLocking && Verbose) { |
225 if (TraceBiasedLocking && Verbose) { |
226 tty->print_cr(" mon_info->owner (" PTR_FORMAT ") != obj (" PTR_FORMAT ")", |
226 tty->print_cr(" mon_info->owner (" PTR_FORMAT ") != obj (" PTR_FORMAT ")", |
227 (intptr_t) mon_info->owner(), |
227 (void *) mon_info->owner(), |
228 (intptr_t) obj); |
228 (void *) obj); |
229 } |
229 } |
230 } |
230 } |
231 } |
231 } |
232 if (highest_lock != NULL) { |
232 if (highest_lock != NULL) { |
233 // Fix up highest lock to contain displaced header and point |
233 // Fix up highest lock to contain displaced header and point |
324 |
324 |
325 if (TraceBiasedLocking) { |
325 if (TraceBiasedLocking) { |
326 tty->print_cr("* Beginning bulk revocation (kind == %s) because of object " |
326 tty->print_cr("* Beginning bulk revocation (kind == %s) because of object " |
327 INTPTR_FORMAT " , mark " INTPTR_FORMAT " , type %s", |
327 INTPTR_FORMAT " , mark " INTPTR_FORMAT " , type %s", |
328 (bulk_rebias ? "rebias" : "revoke"), |
328 (bulk_rebias ? "rebias" : "revoke"), |
329 (intptr_t) o, (intptr_t) o->mark(), o->klass()->external_name()); |
329 (void *) o, (intptr_t) o->mark(), o->klass()->external_name()); |
330 } |
330 } |
331 |
331 |
332 jlong cur_time = os::javaTimeMillis(); |
332 jlong cur_time = os::javaTimeMillis(); |
333 o->klass()->set_last_biased_lock_bulk_revocation_time(cur_time); |
333 o->klass()->set_last_biased_lock_bulk_revocation_time(cur_time); |
334 |
334 |