1 /*
 2  * Copyright (c) 2018, 2019, Red Hat, Inc. 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 #include "gc/shenandoah/shenandoahBarrierSet.inline.hpp"

26 #include "gc/shenandoah/shenandoahRuntime.hpp"
27 #include "gc/shenandoah/shenandoahThreadLocalData.hpp"
28 #include "oops/oop.inline.hpp"
29 #include "runtime/interfaceSupport.inline.hpp"
30 #include "utilities/copy.hpp"
31 
32 JRT_LEAF(void, ShenandoahRuntime::arraycopy_barrier_oop(oop* src, oop* dst, size_t length))
33   ShenandoahBarrierSet::barrier_set()->arraycopy_barrier(src, dst, length);
34 JRT_END
35 
36 JRT_LEAF(void, ShenandoahRuntime::arraycopy_barrier_narrow_oop(narrowOop* src, narrowOop* dst, size_t length))
37   ShenandoahBarrierSet::barrier_set()->arraycopy_barrier(src, dst, length);
38 JRT_END
39 
40 JRT_LEAF(void, ShenandoahRuntime::write_barrier_pre_c2(oopDesc* orig))
41 //log_info(gc)("WB pre C2: " PTR_FORMAT, p2i(orig));
42   write_barrier_pre(orig);
43 JRT_END
44 
45 JRT_LEAF(void, ShenandoahRuntime::write_barrier_pre(oopDesc* orig))
46   if (orig == nullptr) {
47     return ;
48   }
49   shenandoah_assert_correct(nullptr, orig);
50   // Capture the original value that was in the field reference.
51   JavaThread* thread = JavaThread::current();
52   assert(ShenandoahThreadLocalData::satb_mark_queue(thread).is_active(), "Shouldn't be here otherwise");
53   SATBMarkQueue& queue = ShenandoahThreadLocalData::satb_mark_queue(thread);
54   ShenandoahBarrierSet::satb_mark_queue_set().enqueue_known_active(queue, orig);
55 JRT_END
56 
57 JRT_LEAF(oopDesc*, ShenandoahRuntime::load_reference_barrier_strong(oopDesc* src, oop* load_addr))
58   return ShenandoahBarrierSet::barrier_set()->load_reference_barrier_mutator(src, load_addr);
59 JRT_END
60 
61 JRT_LEAF(oopDesc*, ShenandoahRuntime::load_reference_barrier_strong_narrow(oopDesc* src, narrowOop* load_addr))
62   return ShenandoahBarrierSet::barrier_set()->load_reference_barrier_mutator(src, load_addr);
63 JRT_END
64 
65 JRT_LEAF(oopDesc*, ShenandoahRuntime::load_reference_barrier_weak(oopDesc* src, oop* load_addr))
66   return (oopDesc*) ShenandoahBarrierSet::barrier_set()->load_reference_barrier<oop>(ON_WEAK_OOP_REF, oop(src), load_addr);
67 JRT_END
68 
69 JRT_LEAF(oopDesc*, ShenandoahRuntime::load_reference_barrier_weak_narrow(oopDesc* src, narrowOop* load_addr))
70   return (oopDesc*) ShenandoahBarrierSet::barrier_set()->load_reference_barrier<narrowOop>(ON_WEAK_OOP_REF, oop(src), load_addr);
71 JRT_END
72 
73 JRT_LEAF(oopDesc*, ShenandoahRuntime::load_reference_barrier_phantom(oopDesc* src, oop* load_addr))
74   return (oopDesc*) ShenandoahBarrierSet::barrier_set()->load_reference_barrier<oop>(ON_PHANTOM_OOP_REF, oop(src), load_addr);
75 JRT_END
76 
77 JRT_LEAF(oopDesc*, ShenandoahRuntime::load_reference_barrier_phantom_narrow(oopDesc* src, narrowOop* load_addr))
78   return (oopDesc*) ShenandoahBarrierSet::barrier_set()->load_reference_barrier<narrowOop>(ON_PHANTOM_OOP_REF, oop(src), load_addr);
79 JRT_END
80 
81 JRT_LEAF(void, ShenandoahRuntime::clone(oopDesc* src, oopDesc* dst, size_t size))
82   HeapAccess<>::clone(src, dst, size);


83 JRT_END
--- EOF ---