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/parallel/gcTaskManager.hpp"
27 #include "gc/parallel/objectStartArray.inline.hpp"
28 #include "gc/parallel/parallelScavengeHeap.inline.hpp"
29 #include "gc/parallel/psCardTable.hpp"
30 #include "gc/parallel/psPromotionManager.inline.hpp"
31 #include "gc/parallel/psScavenge.hpp"
32 #include "gc/parallel/psTasks.hpp"
33 #include "gc/parallel/psYoungGen.hpp"
34 #include "oops/access.inline.hpp"
35 #include "oops/oop.inline.hpp"
36 #include "runtime/prefetch.inline.hpp"
37 #include "utilities/align.hpp"
38
39 // Checks an individual oop for missing precise marks. Mark
40 // may be either dirty or newgen.
41 class CheckForUnmarkedOops : public OopClosure {
42 private:
43 PSYoungGen* _young_gen;
44 PSCardTable* _card_table;
45 HeapWord* _unmarked_addr;
46
47 protected:
48 template <class T> void do_oop_work(T* p) {
49 oop obj = RawAccess<>::oop_load(p);
50 if (_young_gen->is_in_reserved(obj) &&
51 !_card_table->addr_is_marked_imprecise(p)) {
52 // Don't overwrite the first missing card mark
53 if (_unmarked_addr == NULL) {
|
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/parallel/gcTaskManager.hpp"
27 #include "gc/parallel/objectStartArray.inline.hpp"
28 #include "gc/parallel/parallelScavengeHeap.inline.hpp"
29 #include "gc/parallel/psCardTable.hpp"
30 #include "gc/parallel/psPromotionManager.inline.hpp"
31 #include "gc/parallel/psScavenge.hpp"
32 #include "gc/parallel/psTasks.hpp"
33 #include "gc/parallel/psYoungGen.hpp"
34 #include "memory/iterator.inline.hpp"
35 #include "oops/access.inline.hpp"
36 #include "oops/oop.inline.hpp"
37 #include "runtime/prefetch.inline.hpp"
38 #include "utilities/align.hpp"
39
40 // Checks an individual oop for missing precise marks. Mark
41 // may be either dirty or newgen.
42 class CheckForUnmarkedOops : public OopClosure {
43 private:
44 PSYoungGen* _young_gen;
45 PSCardTable* _card_table;
46 HeapWord* _unmarked_addr;
47
48 protected:
49 template <class T> void do_oop_work(T* p) {
50 oop obj = RawAccess<>::oop_load(p);
51 if (_young_gen->is_in_reserved(obj) &&
52 !_card_table->addr_is_marked_imprecise(p)) {
53 // Don't overwrite the first missing card mark
54 if (_unmarked_addr == NULL) {
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