1/* $OpenBSD: auxv.h,v 1.1 2024/07/14 09:48:49 jca Exp $ */
2
3/*-
4 * SPDX-License-Identifier: BSD-2-Clause
5 *
6 * Copyright (c) 2017 Michal Meloun
7 * All rights reserved.
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
11 * are met:
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in the
16 * documentation and/or other materials provided with the distribution.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
19 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
24 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
26 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
28 * SUCH DAMAGE.
29 */
30
31#ifndef _SYS_AUXV_H_
32#define _SYS_AUXV_H_
33
34#include <sys/types.h>
35#include <machine/elf.h>
36
37/* Values for a_type. */
38#define AT_NULL 0 /* Terminates the vector. */
39#define AT_IGNORE 1 /* Ignored entry. */
40#define AT_PAGESZ 6 /* Page size in bytes. */
41#define AT_HWCAP 25 /* CPU feature flags. */
42#define AT_HWCAP2 26 /* CPU feature flags 2. */
43
44#define AT_COUNT 27 /* Count of defined aux entry types. */
45
46__BEGIN_DECLS
47int elf_aux_info(int aux, void *buf, int buflen);
48__END_DECLS
49
50#endif /* !_SYS_AUXV_H_ */