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
27 extern 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 #ifdef UML_CONFIG_PRINTK
42 #define printk(...) _printk(__VA_ARGS__)
43 extern int _printk(const char *fmt, ...)
44 __attribute__ ((format (printf, 1, 2)));
45 extern 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
printk(const char * fmt,...)49 static inline int printk(const char *fmt, ...)
50 {
51 return 0;
52 }
print_hex_dump(const char * level,const char * prefix_str,int prefix_type,int rowsize,int groupsize,const void * buf,size_t len,_Bool ascii)53 static 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
60 extern int in_aton(char *str);
61 extern size_t strlcat(char *, const char *, size_t);
62 extern 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
69