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1/* SPDX-License-Identifier: GPL-2.0 */
2/*
3 * Copyright (C) 2000 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com)
4 */
5
6#ifndef __USER_H__
7#define __USER_H__
8
9#include <generated/asm-offsets.h>
10
11/*
12 * The usual definition - copied here because the kernel provides its own,
13 * fancier, type-safe, definition. Using that one would require
14 * copying too much infrastructure for my taste, so userspace files
15 * get less checking than kernel files.
16 */
17#define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
18
19/* This is to get size_t and NULL */
20#ifndef __UM_HOST__
21#include <linux/types.h>
22#else
23#include <stddef.h>
24#include <sys/types.h>
25#endif
26
27extern void panic(const char *fmt, ...)
28 __attribute__ ((format (printf, 1, 2)));
29
30/* Requires preincluding include/linux/kern_levels.h */
31#define UM_KERN_EMERG KERN_EMERG
32#define UM_KERN_ALERT KERN_ALERT
33#define UM_KERN_CRIT KERN_CRIT
34#define UM_KERN_ERR KERN_ERR
35#define UM_KERN_WARNING KERN_WARNING
36#define UM_KERN_NOTICE KERN_NOTICE
37#define UM_KERN_INFO KERN_INFO
38#define UM_KERN_DEBUG KERN_DEBUG
39#define UM_KERN_CONT KERN_CONT
40
41#if IS_ENABLED(CONFIG_PRINTK)
42#define printk(...) _printk(__VA_ARGS__)
43extern int _printk(const char *fmt, ...)
44 __attribute__ ((format (printf, 1, 2)));
45extern void print_hex_dump(const char *level, const char *prefix_str,
46 int prefix_type, int rowsize, int groupsize,
47 const void *buf, size_t len, _Bool ascii);
48#else
49static inline int printk(const char *fmt, ...)
50{
51 return 0;
52}
53static inline void print_hex_dump(const char *level, const char *prefix_str,
54 int prefix_type, int rowsize, int groupsize,
55 const void *buf, size_t len, _Bool ascii)
56{
57}
58#endif
59
60extern int in_aton(char *str);
61extern size_t strlcat(char *, const char *, size_t);
62extern size_t sized_strscpy(char *, const char *, size_t);
63#define strscpy(dst, src) sized_strscpy(dst, src, sizeof(dst))
64
65/* Copied from linux/compiler-gcc.h since we can't include it directly */
66#define barrier() __asm__ __volatile__("": : :"memory")
67
68#endif