VirtualBox

source: vbox/trunk/include/iprt/zero.h@ 103224

Last change on this file since 103224 was 100318, checked in by vboxsync, 15 months ago

include/iprt/{param.h,zero.h,asm.h}: Make the use of PAGE_SIZE/PAGE_SHIFT/PAGE_OFFSET_MASK in linux.arm64 userspace code result in a build error due to unknown page size, for the kerne side the page size is derived from the kernel config bits, bugref:10476

  • Property svn:eol-style set to native
  • Property svn:keywords set to Author Date Id Revision
File size: 2.1 KB
Line 
1/** @file
2 * IPRT - Zero Memory.
3 */
4
5/*
6 * Copyright (C) 2006-2023 Oracle and/or its affiliates.
7 *
8 * This file is part of VirtualBox base platform packages, as
9 * available from https://www.virtualbox.org.
10 *
11 * This program is free software; you can redistribute it and/or
12 * modify it under the terms of the GNU General Public License
13 * as published by the Free Software Foundation, in version 3 of the
14 * License.
15 *
16 * This program is distributed in the hope that it will be useful, but
17 * WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
19 * General Public License for more details.
20 *
21 * You should have received a copy of the GNU General Public License
22 * along with this program; if not, see <https://www.gnu.org/licenses>.
23 *
24 * The contents of this file may alternatively be used under the terms
25 * of the Common Development and Distribution License Version 1.0
26 * (CDDL), a copy of it is provided in the "COPYING.CDDL" file included
27 * in the VirtualBox distribution, in which case the provisions of the
28 * CDDL are applicable instead of those of the GPL.
29 *
30 * You may elect to license modified versions of this file under the
31 * terms and conditions of either the GPL or the CDDL or both.
32 *
33 * SPDX-License-Identifier: GPL-3.0-only OR CDDL-1.0
34 */
35
36#ifndef IPRT_INCLUDED_zero_h
37#define IPRT_INCLUDED_zero_h
38#ifndef RT_WITHOUT_PRAGMA_ONCE
39# pragma once
40#endif
41
42
43#include <iprt/cdefs.h>
44#include <iprt/types.h>
45#include <iprt/param.h>
46
47
48RT_C_DECLS_BEGIN
49
50/** @defgroup grp_rt_zero RTZero - Zeroed Memory Objects
51 * @ingroup grp_rt
52 * @{
53 */
54
55/* Not available on linux.arm64 due to unknown page size in userspace. */
56#if !defined(RT_ARCH_ARM64) && !defined(RT_OS_LINUX)
57extern RTDATADECL(uint8_t const) g_abRTZeroPage[PAGE_SIZE];
58#endif
59extern RTDATADECL(uint8_t const) g_abRTZero4K[_4K];
60extern RTDATADECL(uint8_t const) g_abRTZero8K[_8K];
61extern RTDATADECL(uint8_t const) g_abRTZero16K[_16K];
62extern RTDATADECL(uint8_t const) g_abRTZero32K[_32K];
63extern RTDATADECL(uint8_t const) g_abRTZero64K[_64K];
64
65/** @} */
66
67RT_C_DECLS_END
68
69#endif /* !IPRT_INCLUDED_zero_h */
70
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