copy_arm.hpp revision 12422:98fe046473c9
1/*
2 * Copyright (c) 2008, 2016, 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#ifndef CPU_ARM_VM_COPY_ARM_HPP
26#define CPU_ARM_VM_COPY_ARM_HPP
27
28#include "utilities/macros.hpp"
29
30// Inline functions for memory copy and fill.
31
32// Contains inline asm implementations
33#include OS_CPU_HEADER_INLINE(copy)
34
35static void pd_fill_to_words(HeapWord* tohw, size_t count, juint value) {
36  juint* to = (juint*)tohw;
37  count *= HeapWordSize / BytesPerInt;
38  while (count-- > 0) {
39    *to++ = value;
40  }
41}
42
43static void pd_fill_to_aligned_words(HeapWord* tohw, size_t count, juint value) {
44  pd_fill_to_words(tohw, count, value);
45}
46
47static void pd_fill_to_bytes(void* to, size_t count, jubyte value) {
48  memset(to, value, count);
49}
50
51static void pd_zero_to_words(HeapWord* tohw, size_t count) {
52  pd_fill_to_words(tohw, count, 0);
53}
54
55static void pd_zero_to_bytes(void* to, size_t count) {
56  memset(to, 0, count);
57}
58
59#endif // CPU_ARM_VM_COPY_ARM_HPP
60