auxv.h

 1/* SPDX-License-Identifier: LGPL-2.1 OR MIT */
 2/*
 3 * auxv definitions for NOLIBC
 4 * Copyright (C) 2017-2021 Willy Tarreau <w@1wt.eu>
 5 */
 6
 7/* make sure to include all global symbols */
 8#include "../nolibc.h"
 9
10#ifndef _NOLIBC_SYS_AUXV_H
11#define _NOLIBC_SYS_AUXV_H
12
13#ifndef NOLIBC_NO_RUNTIME
14
15#include "../crt.h"
16
17static __attribute__((unused))
18unsigned long getauxval(unsigned long type)
19{
20	const unsigned long *auxv = _auxv;
21	unsigned long ret;
22
23	if (!auxv)
24		return 0;
25
26	while (1) {
27		if (!auxv[0] && !auxv[1]) {
28			ret = 0;
29			break;
30		}
31
32		if (auxv[0] == type) {
33			ret = auxv[1];
34			break;
35		}
36
37		auxv += 2;
38	}
39
40	return ret;
41}
42
43#endif /* NOLIBC_NO_RUNTIME */
44#endif /* _NOLIBC_SYS_AUXV_H */