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 49 static inline int printk(const char *fmt, ...) 50 { 51 return 0; 52 } 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