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_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/universe.hpp"
30 #include "oops/markOop.inline.hpp"
31 #include "oops/oop.inline.hpp"
32 #if INCLUDE_ALL_GCS
33 #include "gc/g1/g1Allocator.inline.hpp"
34 #endif // INCLUDE_ALL_GCS
35
36 inline bool MarkSweep::is_archive_object(oop object) {
37 #if INCLUDE_ALL_GCS
38 return G1ArchiveAllocator::is_archive_object(object);
39 #else
40 return false;
41 #endif
42 }
43
44 inline int MarkSweep::adjust_pointers(oop obj) {
45 return obj->oop_iterate_size(&MarkSweep::adjust_pointer_closure);
46 }
47
48 template <class T> inline void MarkSweep::adjust_pointer(T* p) {
49 T heap_oop = oopDesc::load_heap_oop(p);
50 if (!oopDesc::is_null(heap_oop)) {
51 oop obj = oopDesc::decode_heap_oop_not_null(heap_oop);
52 assert(Universe::heap()->is_in(obj), "should be in heap");
53
54 oop new_obj = oop(obj->mark()->decode_pointer());
55 assert(is_archive_object(obj) || // no forwarding of archive objects
56 new_obj != NULL || // is forwarding ptr?
57 obj->mark() == markOopDesc::prototype() || // not gc marked?
58 (UseBiasedLocking && obj->mark()->has_bias_pattern()),
59 // not gc marked?
60 "should be forwarded");
61 if (new_obj != NULL) {
62 if (!is_archive_object(obj)) {
63 assert(Universe::heap()->is_in_reserved(new_obj),
64 "should be in object space");
65 oopDesc::encode_store_heap_oop_not_null(p, new_obj);
66 }
67 }
68 }
69 }
70
71 #endif // SHARE_VM_GC_SERIAL_MARKSWEEP_INLINE_HPP
|
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_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 #if INCLUDE_ALL_GCS
34 #include "gc/g1/g1Allocator.inline.hpp"
35 #endif // INCLUDE_ALL_GCS
36
37 inline bool MarkSweep::is_closed_archive_object(oop object) {
38 #if INCLUDE_ALL_GCS
39 return G1ArchiveAllocator::is_closed_archive_object(object);
40 #else
41 return false;
42 #endif
43 }
44
45 inline bool MarkSweep::is_open_archive_object(oop object) {
46 #if INCLUDE_ALL_GCS
47 return G1ArchiveAllocator::is_open_archive_object(object);
48 #else
49 return false;
50 #endif
51 }
52
53 inline bool MarkSweep::is_archive_object(oop object) {
54 #if INCLUDE_ALL_GCS
55 return G1ArchiveAllocator::is_archive_object(object);
56 #else
57 return false;
58 #endif
59 }
60
61 inline int MarkSweep::adjust_pointers(oop obj) {
62 return obj->oop_iterate_size(&MarkSweep::adjust_pointer_closure);
63 }
64
65 template <class T> inline void MarkSweep::adjust_pointer(T* p) {
66 T heap_oop = oopDesc::load_heap_oop(p);
67 if (!oopDesc::is_null(heap_oop)) {
68 oop obj = oopDesc::decode_heap_oop_not_null(heap_oop);
69 assert(Universe::heap()->is_in(obj), "should be in heap");
70
71 oop new_obj = oop(obj->mark()->decode_pointer());
72
73 assert(is_archive_object(obj) || // no forwarding of archive objects
74 new_obj != NULL || // is forwarding ptr?
75 obj->mark() == markOopDesc::prototype() || // not gc marked?
76 (UseBiasedLocking && obj->mark()->has_bias_pattern()),
77 // not gc marked?
78 "should be forwarded");
79
80 #ifndef PRODUCT
81 // open_archive objects are marked by GC. Their mark should
82 // not have forwarding ptr.
83 if (is_open_archive_object(obj)) {
84 assert(new_obj == NULL, "archive heap object has forwarding ptr");
85 }
86 #endif
87
88 if (new_obj != NULL) {
89 if (!is_closed_archive_object(obj)) {
90 assert(Universe::heap()->is_in_reserved(new_obj),
91 "should be in object space");
92 oopDesc::encode_store_heap_oop_not_null(p, new_obj);
93 }
94 }
95 }
96 }
97
98 #endif // SHARE_VM_GC_SERIAL_MARKSWEEP_INLINE_HPP
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