1 /*
 2  * Copyright (c) 2018, 2025, Oracle and/or its affiliates. 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
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23  */
24 
25 #include "gc/g1/g1BarrierSet.inline.hpp"
26 #include "gc/g1/g1BarrierSetRuntime.hpp"
27 #include "gc/g1/g1ThreadLocalData.hpp"
28 #include "runtime/interfaceSupport.inline.hpp"
29 #include "utilities/macros.hpp"
30 
31 void G1BarrierSetRuntime::write_ref_array_pre_oop_entry(oop* dst, size_t length) {
32   G1BarrierSet *bs = G1BarrierSet::g1_barrier_set();
33   bs->write_ref_array_pre(dst, length);
34 }
35 
36 void G1BarrierSetRuntime::write_ref_array_pre_narrow_oop_entry(narrowOop* dst, size_t length) {
37   G1BarrierSet *bs = G1BarrierSet::g1_barrier_set();
38   bs->write_ref_array_pre(dst, length);
39 }
40 
41 void G1BarrierSetRuntime::write_ref_array_post_entry(HeapWord* dst, size_t length) {
42   G1BarrierSet *bs = G1BarrierSet::g1_barrier_set();
43   bs->G1BarrierSet::write_ref_array(dst, length);
44 }
45 
46 // G1 pre write barrier slowpath
47 JRT_LEAF(void, G1BarrierSetRuntime::write_ref_field_pre_entry(oopDesc* orig, JavaThread* thread))
48   assert(thread == JavaThread::current(), "pre-condition");
49   assert(orig != nullptr, "should be optimized out");
50   assert(oopDesc::is_oop(orig), "Error");
51   // store the original value that was in the field reference
52   SATBMarkQueue& queue = G1ThreadLocalData::satb_mark_queue(thread);
53   G1BarrierSet::satb_mark_queue_set().enqueue_known_active(queue, orig);
54 JRT_END
55 
56 JRT_LEAF(void, G1BarrierSetRuntime::clone(oopDesc* src, oopDesc* dst, size_t size))
57   HeapAccess<>::clone(src, dst, size);
58 JRT_END
59 
60 address G1BarrierSetRuntime::clone_addr() {
61   return reinterpret_cast<address>(clone);
62 }