1/*
2 * Copyright (c) 2005, 2015, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 *
23 */
24
25#include "precompiled.hpp"
26#include "gc/shared/barrierSet.hpp"
27#include "gc/shared/collectedHeap.hpp"
28#include "gc/shared/collectedHeap.inline.hpp"
29#include "memory/universe.hpp"
30#include "oops/oopsHierarchy.hpp"
31#include "runtime/thread.inline.hpp"
32#include "utilities/globalDefinitions.hpp"
33
34#ifdef CHECK_UNHANDLED_OOPS
35
36void oop::register_oop() {
37 assert (CheckUnhandledOops, "should only call when CheckUnhandledOops");
38 if (!Universe::is_fully_initialized()) return;
39 // This gets expensive, which is why checking unhandled oops is on a switch.
40 Thread* t = Thread::current_or_null();
41 if (t != NULL && t->is_Java_thread()) {
42 frame fr = os::current_frame();
43 // This points to the oop creator, I guess current frame points to caller
44 assert (fr.pc(), "should point to a vm frame");
45 t->unhandled_oops()->register_unhandled_oop(this, fr.pc());
46 }
47}
48
49void oop::unregister_oop() {
50 assert (CheckUnhandledOops, "should only call when CheckUnhandledOops");
51 if (!Universe::is_fully_initialized()) return;
52 // This gets expensive, which is why checking unhandled oops is on a switch.
53 Thread* t = Thread::current_or_null();
54 if (t != NULL && t->is_Java_thread()) {
55 t->unhandled_oops()->unregister_unhandled_oop(this);
56 }
57}
58
59bool oop::operator==(const oop o) const {
60 assert(BarrierSet::barrier_set()->oop_equals_operator_allowed(), "Not allowed");
61 return obj() == o.obj();
62}
63
64bool oop::operator!=(const volatile oop o) const {
65 assert(BarrierSet::barrier_set()->oop_equals_operator_allowed(), "Not allowed");
66 return obj() != o.obj();
67}
68
69#endif // CHECK_UNHANDLED_OOPS
70