1 /*
2 * Copyright (c) 2000, 2022, 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 #ifndef SHARE_GC_SERIAL_MARKSWEEP_INLINE_HPP
26 #define SHARE_GC_SERIAL_MARKSWEEP_INLINE_HPP
27
28 #include "gc/serial/markSweep.hpp"
29
30 #include "classfile/classLoaderData.inline.hpp"
31 #include "classfile/javaClasses.inline.hpp"
32 #include "gc/shared/continuationGCSupport.inline.hpp"
33 #include "gc/serial/serialStringDedup.hpp"
34 #include "memory/universe.hpp"
35 #include "oops/markWord.hpp"
36 #include "oops/access.inline.hpp"
37 #include "oops/compressedOops.inline.hpp"
38 #include "oops/oop.inline.hpp"
39 #include "utilities/align.hpp"
40 #include "utilities/stack.inline.hpp"
41
42 template <class T> inline void MarkSweep::adjust_pointer(T* p) {
43 T heap_oop = RawAccess<>::oop_load(p);
44 if (!CompressedOops::is_null(heap_oop)) {
45 oop obj = CompressedOops::decode_not_null(heap_oop);
46 assert(Universe::heap()->is_in(obj), "should be in heap");
47
48 if (obj->is_forwarded()) {
49 oop new_obj = obj->forwardee();
50 assert(is_object_aligned(new_obj), "oop must be aligned");
51 RawAccess<IS_NOT_NULL>::oop_store(p, new_obj);
52 }
53 }
54 }
55
56 template <typename T>
57 void AdjustPointerClosure::do_oop_work(T* p) { MarkSweep::adjust_pointer(p); }
58 inline void AdjustPointerClosure::do_oop(oop* p) { do_oop_work(p); }
59 inline void AdjustPointerClosure::do_oop(narrowOop* p) { do_oop_work(p); }
60
61 inline size_t MarkSweep::adjust_pointers(oop obj) {
62 return obj->oop_iterate_size(&MarkSweep::adjust_pointer_closure);
63 }
64
65 #endif // SHARE_GC_SERIAL_MARKSWEEP_INLINE_HPP