1/* SPDX-License-Identifier: GPL-2.0+ */
2/*
3 * Copyright (C) 2014 Samsung Electronics
4 * Przemyslaw Marczak <p.marczak@samsung.com>
5 */
6#ifndef _ERRNO_H
7#define _ERRNO_H
8
9#include <linux/errno.h>
10
11#ifdef __SANDBOX__
12#define __errno_asm_label asm("__u_boot_errno")
13#else
14#define __errno_asm_label
15#endif
16
17extern int errno __errno_asm_label;
18
19#define __set_errno(val) do { errno = val; } while (0)
20
21/**
22 * errno_str() - get description for error number
23 *
24 * @errno:	error number (negative in case of error)
25 * Return:	string describing the error. If CONFIG_ERRNO_STR is not
26 *		defined an empty string is returned.
27 */
28#if CONFIG_IS_ENABLED(ERRNO_STR)
29const char *errno_str(int errno);
30#else
31static const char error_message[] = "";
32
33static inline const char *errno_str(int errno)
34{
35	return error_message;
36}
37#endif
38#endif /* _ERRNO_H */
39