arch/um/include/shared/user.h

   1 /*
   2  * Copyright (C) 2000 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com)
   3  * Licensed under the GPL
   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 */
  20 #ifdef __KERNEL__
  21 #include <linux/types.h>
  22 #else
  23 #include <stddef.h>
  24 #endif
  25
  26 extern void panic(const char *fmt, ...)
  27         __attribute__ ((format (printf, 1, 2)));
  28
  29 #ifdef UML_CONFIG_PRINTK
  30 extern int printk(const char *fmt, ...)
  31         __attribute__ ((format (printf, 1, 2)));
  32 #else
  33 static inline int printk(const char *fmt, ...)
  34 {
  35         return 0;
  36 }
  37 #endif
  38
  39 extern int in_aton(char *str);
  40 extern size_t strlcpy(char *, const char *, size_t);
  41 extern size_t strlcat(char *, const char *, size_t);
  42
  43 /* Copied from linux/compiler-gcc.h since we can't include it directly */
  44 #define barrier() __asm__ __volatile__("": : :"memory")
  45
  46 #endif