LXR linux/arch/um/include/shared/user.h

   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 */
  20#ifndef __UM_HOST__
  21#include <linux/types.h>
  22#else
  23#include <stddef.h>
  24#endif
  25
  26extern void panic(const char *fmt, ...)
  27        __attribute__ ((format (printf, 1, 2)));
  28
  29/* Requires preincluding include/linux/kern_levels.h */
  30#define UM_KERN_EMERG   KERN_EMERG
  31#define UM_KERN_ALERT   KERN_ALERT
  32#define UM_KERN_CRIT    KERN_CRIT
  33#define UM_KERN_ERR     KERN_ERR
  34#define UM_KERN_WARNING KERN_WARNING
  35#define UM_KERN_NOTICE  KERN_NOTICE
  36#define UM_KERN_INFO    KERN_INFO
  37#define UM_KERN_DEBUG   KERN_DEBUG
  38#define UM_KERN_CONT    KERN_CONT
  39
  40#ifdef UML_CONFIG_PRINTK
  41#define printk(...) _printk(__VA_ARGS__)
  42extern int _printk(const char *fmt, ...)
  43        __attribute__ ((format (printf, 1, 2)));
  44#else
  45static inline int printk(const char *fmt, ...)
  46{
  47        return 0;
  48}
  49#endif
  50
  51extern int in_aton(char *str);
  52extern size_t strlcpy(char *, const char *, size_t);
  53extern size_t strlcat(char *, const char *, size_t);
  54
  55/* Copied from linux/compiler-gcc.h since we can't include it directly */
  56#define barrier() __asm__ __volatile__("": : :"memory")
  57
  58#endif
  59