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/g1/dirtyCardQueue.hpp"
27 #include "gc/g1/g1CollectedHeap.inline.hpp"
28 #include "gc/g1/g1CollectorState.hpp"
29 #include "gc/g1/g1ConcurrentMark.inline.hpp"
30 #include "gc/g1/g1EvacFailure.hpp"
31 #include "gc/g1/g1HeapVerifier.hpp"
32 #include "gc/g1/g1OopClosures.inline.hpp"
33 #include "gc/g1/g1_globals.hpp"
34 #include "gc/g1/heapRegion.hpp"
35 #include "gc/g1/heapRegionRemSet.hpp"
36 #include "gc/shared/preservedMarks.inline.hpp"
37
38 class UpdateRSetDeferred : public ExtendedOopClosure {
39 private:
40 G1CollectedHeap* _g1;
41 DirtyCardQueue* _dcq;
42 G1CardTable* _ct;
43
44 public:
45 UpdateRSetDeferred(DirtyCardQueue* dcq) :
46 _g1(G1CollectedHeap::heap()), _ct(_g1->card_table()), _dcq(dcq) {}
47
48 virtual void do_oop(narrowOop* p) { do_oop_work(p); }
49 virtual void do_oop( oop* p) { do_oop_work(p); }
50 template <class T> void do_oop_work(T* p) {
51 assert(_g1->heap_region_containing(p)->is_in_reserved(p), "paranoia");
52 assert(!_g1->heap_region_containing(p)->is_survivor(), "Unexpected evac failure in survivor region");
53
54 T const o = oopDesc::load_heap_oop(p);
55 if (oopDesc::is_null(o)) {
56 return;
57 }
58
59 if (HeapRegion::is_in_same_region(p, oopDesc::decode_heap_oop(o))) {
60 return;
61 }
62 size_t card_index = _ct->index_for(p);
63 if (_ct->mark_card_deferred(card_index)) {
64 _dcq->enqueue((jbyte*)_ct->byte_for_index(card_index));
65 }
66 }
67 };
68
69 class RemoveSelfForwardPtrObjClosure: public ObjectClosure {
70 private:
71 G1CollectedHeap* _g1;
72 G1ConcurrentMark* _cm;
73 HeapRegion* _hr;
74 size_t _marked_bytes;
75 UpdateRSetDeferred* _update_rset_cl;
76 bool _during_initial_mark;
77 uint _worker_id;
78 HeapWord* _last_forwarded_object_end;
79
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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/g1/dirtyCardQueue.hpp"
27 #include "gc/g1/g1CollectedHeap.inline.hpp"
28 #include "gc/g1/g1CollectorState.hpp"
29 #include "gc/g1/g1ConcurrentMark.inline.hpp"
30 #include "gc/g1/g1EvacFailure.hpp"
31 #include "gc/g1/g1HeapVerifier.hpp"
32 #include "gc/g1/g1OopClosures.inline.hpp"
33 #include "gc/g1/g1_globals.hpp"
34 #include "gc/g1/heapRegion.hpp"
35 #include "gc/g1/heapRegionRemSet.hpp"
36 #include "gc/shared/preservedMarks.inline.hpp"
37 #include "oops/access.inline.hpp"
38 #include "oops/compressedOops.inline.hpp"
39
40 class UpdateRSetDeferred : public ExtendedOopClosure {
41 private:
42 G1CollectedHeap* _g1;
43 DirtyCardQueue* _dcq;
44 G1CardTable* _ct;
45
46 public:
47 UpdateRSetDeferred(DirtyCardQueue* dcq) :
48 _g1(G1CollectedHeap::heap()), _ct(_g1->card_table()), _dcq(dcq) {}
49
50 virtual void do_oop(narrowOop* p) { do_oop_work(p); }
51 virtual void do_oop( oop* p) { do_oop_work(p); }
52 template <class T> void do_oop_work(T* p) {
53 assert(_g1->heap_region_containing(p)->is_in_reserved(p), "paranoia");
54 assert(!_g1->heap_region_containing(p)->is_survivor(), "Unexpected evac failure in survivor region");
55
56 T const o = RawAccess<>::oop_load(p);
57 if (CompressedOops::is_null(o)) {
58 return;
59 }
60
61 if (HeapRegion::is_in_same_region(p, CompressedOops::decode(o))) {
62 return;
63 }
64 size_t card_index = _ct->index_for(p);
65 if (_ct->mark_card_deferred(card_index)) {
66 _dcq->enqueue((jbyte*)_ct->byte_for_index(card_index));
67 }
68 }
69 };
70
71 class RemoveSelfForwardPtrObjClosure: public ObjectClosure {
72 private:
73 G1CollectedHeap* _g1;
74 G1ConcurrentMark* _cm;
75 HeapRegion* _hr;
76 size_t _marked_bytes;
77 UpdateRSetDeferred* _update_rset_cl;
78 bool _during_initial_mark;
79 uint _worker_id;
80 HeapWord* _last_forwarded_object_end;
81
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