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 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#ifdef UML_CONFIG_PRINTK
  42#define printk(...) _printk(__VA_ARGS__)
  43extern int _printk(const char *fmt, ...)
  44        __attribute__ ((format (printf, 1, 2)));
  45#else
  46static inline int printk(const char *fmt, ...)
  47{
  48        return 0;
  49}
  50#endif
  51
  52extern int in_aton(char *str);
  53extern size_t strlcat(char *, const char *, size_t);
  54extern size_t strscpy(char *, const char *, size_t);
  55
  56/* Copied from linux/compiler-gcc.h since we can't include it directly */
  57#define barrier() __asm__ __volatile__("": : :"memory")
  58
  59#endif
  60