linux/arch/um/include/shared/user.h
Al Viro 05c46db4d7 um: take userland definition of barrier() to user.h
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Richard Weinberger <richard@nod.at>
2011-11-02 14:14:58 +01:00

47 lines
1.1 KiB
C

/*
* Copyright (C) 2000 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com)
* Licensed under the GPL
*/
#ifndef __USER_H__
#define __USER_H__
#include <generated/asm-offsets.h>
/*
* The usual definition - copied here because the kernel provides its own,
* fancier, type-safe, definition. Using that one would require
* copying too much infrastructure for my taste, so userspace files
* get less checking than kernel files.
*/
#define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
/* This is to get size_t */
#ifdef __KERNEL__
#include <linux/types.h>
#else
#include <stddef.h>
#endif
extern void panic(const char *fmt, ...)
__attribute__ ((format (printf, 1, 2)));
#ifdef UML_CONFIG_PRINTK
extern int printk(const char *fmt, ...)
__attribute__ ((format (printf, 1, 2)));
#else
static inline int printk(const char *fmt, ...)
{
return 0;
}
#endif
extern int in_aton(char *str);
extern size_t strlcpy(char *, const char *, size_t);
extern size_t strlcat(char *, const char *, size_t);
/* Copied from linux/compiler-gcc.h since we can't include it directly */
#define barrier() __asm__ __volatile__("": : :"memory")
#endif