1 /*
2 * Copyright (c) 2000, 2017, 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 *
24
25 #ifndef SHARE_VM_GC_SERIAL_MARKSWEEP_INLINE_HPP
26 #define SHARE_VM_GC_SERIAL_MARKSWEEP_INLINE_HPP
27
28 #include "gc/serial/markSweep.hpp"
29 #include "memory/metaspaceShared.hpp"
30 #include "memory/universe.hpp"
31 #include "oops/markOop.inline.hpp"
32 #include "oops/oop.inline.hpp"
33
34 inline int MarkSweep::adjust_pointers(oop obj) {
35 return obj->oop_iterate_size(&MarkSweep::adjust_pointer_closure);
36 }
37
38 template <class T> inline void MarkSweep::adjust_pointer(T* p) {
39 T heap_oop = oopDesc::load_heap_oop(p);
40 if (!oopDesc::is_null(heap_oop)) {
41 oop obj = oopDesc::decode_heap_oop_not_null(heap_oop);
42 assert(Universe::heap()->is_in(obj), "should be in heap");
43
44 oop new_obj = oop(obj->mark()->decode_pointer());
45
46 assert(new_obj != NULL || // is forwarding ptr?
47 obj->mark() == markOopDesc::prototype() || // not gc marked?
48 (UseBiasedLocking && obj->mark()->has_bias_pattern()),
49 // not gc marked?
50 "should be forwarded");
51
52 if (new_obj != NULL) {
53 assert(Universe::heap()->is_in_reserved(new_obj),
54 "should be in object space");
55 oopDesc::encode_store_heap_oop_not_null(p, new_obj);
56 }
57 }
58 }
59
60 #endif // SHARE_VM_GC_SERIAL_MARKSWEEP_INLINE_HPP
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1 /*
2 * Copyright (c) 2000, 2018, 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 *
24
25 #ifndef SHARE_VM_GC_SERIAL_MARKSWEEP_INLINE_HPP
26 #define SHARE_VM_GC_SERIAL_MARKSWEEP_INLINE_HPP
27
28 #include "gc/serial/markSweep.hpp"
29 #include "memory/metaspaceShared.hpp"
30 #include "memory/universe.hpp"
31 #include "oops/markOop.inline.hpp"
32 #include "oops/oop.inline.hpp"
33
34 inline int MarkSweep::adjust_pointers(oop obj) {
35 return obj->oop_iterate_size(&MarkSweep::adjust_pointer_closure);
36 }
37
38 template <class T> inline void MarkSweep::adjust_pointer(T* p) {
39 T heap_oop = oopDesc::load_heap_oop(p);
40 if (!oopDesc::is_null(heap_oop)) {
41 oop obj = oopDesc::decode_heap_oop_not_null(heap_oop);
42 assert(Universe::heap()->is_in(obj), "should be in heap");
43
44 oop new_obj = oop(obj->mark_raw()->decode_pointer());
45
46 assert(new_obj != NULL || // is forwarding ptr?
47 obj->mark_raw() == markOopDesc::prototype() || // not gc marked?
48 (UseBiasedLocking && obj->mark_raw()->has_bias_pattern()),
49 // not gc marked?
50 "should be forwarded");
51
52 if (new_obj != NULL) {
53 assert(Universe::heap()->is_in_reserved(new_obj),
54 "should be in object space");
55 oopDesc::encode_store_heap_oop_not_null(p, new_obj);
56 }
57 }
58 }
59
60 #endif // SHARE_VM_GC_SERIAL_MARKSWEEP_INLINE_HPP
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