1/*
2 * Copyright (c) 2018, 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
21 * questions.
22 *
23 */
24
25#include "precompiled.hpp"
26#include "gc/g1/g1BarrierSet.inline.hpp"
27#include "gc/g1/g1BarrierSetRuntime.hpp"
28#include "gc/g1/g1ThreadLocalData.hpp"
29#include "runtime/interfaceSupport.inline.hpp"
30#include "utilities/macros.hpp"
31
32void G1BarrierSetRuntime::write_ref_array_pre_oop_entry(oop* dst, size_t length) {
33 G1BarrierSet *bs = barrier_set_cast<G1BarrierSet>(BarrierSet::barrier_set());
34 bs->write_ref_array_pre(dst, length, false);
35}
36
37void G1BarrierSetRuntime::write_ref_array_pre_narrow_oop_entry(narrowOop* dst, size_t length) {
38 G1BarrierSet *bs = barrier_set_cast<G1BarrierSet>(BarrierSet::barrier_set());
39 bs->write_ref_array_pre(dst, length, false);
40}
41
42void G1BarrierSetRuntime::write_ref_array_post_entry(HeapWord* dst, size_t length) {
43 G1BarrierSet *bs = barrier_set_cast<G1BarrierSet>(BarrierSet::barrier_set());
44 bs->G1BarrierSet::write_ref_array(dst, length);
45}
46
47// G1 pre write barrier slowpath
48JRT_LEAF(void, G1BarrierSetRuntime::write_ref_field_pre_entry(oopDesc* orig, JavaThread *thread))
49 if (orig == NULL) {
50 assert(false, "should be optimized out");
51 return;
52 }
53 assert(oopDesc::is_oop(orig, true /* ignore mark word */), "Error");
54 // store the original value that was in the field reference
55 G1ThreadLocalData::satb_mark_queue(thread).enqueue(orig);
56JRT_END
57
58// G1 post write barrier slowpath
59JRT_LEAF(void, G1BarrierSetRuntime::write_ref_field_post_entry(void* card_addr, JavaThread* thread))
60 G1ThreadLocalData::dirty_card_queue(thread).enqueue(card_addr);
61JRT_END
62