7 *
8 * This code is distributed in the hope that it will be useful, but WITHOUT
9 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
10 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
11 * version 2 for more details (a copy is included in the LICENSE file that
12 * accompanied this code).
13 *
14 * You should have received a copy of the GNU General Public License version
15 * 2 along with this work; if not, write to the Free Software Foundation,
16 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
17 *
18 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
19 * or visit www.oracle.com if you need additional information or have any
20 * questions.
21 *
22 */
23
24 #include "precompiled.hpp"
25 #include "gc/shenandoah/shenandoahAsserts.hpp"
26 #include "gc/shenandoah/shenandoahBarrierSet.hpp"
27 #include "gc/shenandoah/shenandoahBarrierSetAssembler.hpp"
28 #include "gc/shenandoah/shenandoahCollectorPolicy.hpp"
29 #include "gc/shenandoah/shenandoahHeap.inline.hpp"
30 #include "gc/shenandoah/shenandoahHeuristics.hpp"
31 #include "gc/shenandoah/shenandoahTraversalGC.hpp"
32 #include "memory/iterator.inline.hpp"
33 #include "runtime/interfaceSupport.inline.hpp"
34 #ifdef COMPILER1
35 #include "gc/shenandoah/c1/shenandoahBarrierSetC1.hpp"
36 #endif
37 #ifdef COMPILER2
38 #include "gc/shenandoah/c2/shenandoahBarrierSetC2.hpp"
39 #endif
40
41 class ShenandoahBarrierSetC1;
42 class ShenandoahBarrierSetC2;
43
44 ShenandoahBarrierSet::ShenandoahBarrierSet(ShenandoahHeap* heap) :
45 BarrierSet(make_barrier_set_assembler<ShenandoahBarrierSetAssembler>(),
46 make_barrier_set_c1<ShenandoahBarrierSetC1>(),
266 return NULL;
267 }
268
269 ShenandoahMarkingContext* const marking_context = _heap->marking_context();
270
271 if (_heap->is_evacuation_in_progress()) {
272 // Normal GC
273 if (!marking_context->is_marked(obj)) {
274 return NULL;
275 }
276 } else if (_heap->is_concurrent_traversal_in_progress()) {
277 // Traversal GC
278 if (marking_context->is_complete() &&
279 !marking_context->is_marked(resolve_forwarded_not_null(obj))) {
280 return NULL;
281 }
282 }
283
284 return load_reference_barrier_not_null(obj);
285 }
|
7 *
8 * This code is distributed in the hope that it will be useful, but WITHOUT
9 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
10 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
11 * version 2 for more details (a copy is included in the LICENSE file that
12 * accompanied this code).
13 *
14 * You should have received a copy of the GNU General Public License version
15 * 2 along with this work; if not, write to the Free Software Foundation,
16 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
17 *
18 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
19 * or visit www.oracle.com if you need additional information or have any
20 * questions.
21 *
22 */
23
24 #include "precompiled.hpp"
25 #include "gc/shenandoah/shenandoahAsserts.hpp"
26 #include "gc/shenandoah/shenandoahBarrierSet.hpp"
27 #include "gc/shenandoah/shenandoahBarrierSetClone.inline.hpp"
28 #include "gc/shenandoah/shenandoahBarrierSetAssembler.hpp"
29 #include "gc/shenandoah/shenandoahCollectorPolicy.hpp"
30 #include "gc/shenandoah/shenandoahHeap.inline.hpp"
31 #include "gc/shenandoah/shenandoahHeuristics.hpp"
32 #include "gc/shenandoah/shenandoahTraversalGC.hpp"
33 #include "memory/iterator.inline.hpp"
34 #include "runtime/interfaceSupport.inline.hpp"
35 #ifdef COMPILER1
36 #include "gc/shenandoah/c1/shenandoahBarrierSetC1.hpp"
37 #endif
38 #ifdef COMPILER2
39 #include "gc/shenandoah/c2/shenandoahBarrierSetC2.hpp"
40 #endif
41
42 class ShenandoahBarrierSetC1;
43 class ShenandoahBarrierSetC2;
44
45 ShenandoahBarrierSet::ShenandoahBarrierSet(ShenandoahHeap* heap) :
46 BarrierSet(make_barrier_set_assembler<ShenandoahBarrierSetAssembler>(),
47 make_barrier_set_c1<ShenandoahBarrierSetC1>(),
267 return NULL;
268 }
269
270 ShenandoahMarkingContext* const marking_context = _heap->marking_context();
271
272 if (_heap->is_evacuation_in_progress()) {
273 // Normal GC
274 if (!marking_context->is_marked(obj)) {
275 return NULL;
276 }
277 } else if (_heap->is_concurrent_traversal_in_progress()) {
278 // Traversal GC
279 if (marking_context->is_complete() &&
280 !marking_context->is_marked(resolve_forwarded_not_null(obj))) {
281 return NULL;
282 }
283 }
284
285 return load_reference_barrier_not_null(obj);
286 }
287
288 void ShenandoahBarrierSet::clone_barrier_runtime(oop src) {
289 clone_barrier(src);
290 }
291
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