uaccess.h File Reference

#include <linux/sched.h>
#include <linux/mm.h>
#include <asm/segment.h>
#include <asm/sections.h>
#include <asm-generic/uaccess.h>

Go to the source code of this file.

Macros
#define	VERIFY_READ   0
#define	VERIFY_WRITE   1
#define	__access_ok(addr, size)
#define	__copy_from_user(to, from, n)   __copy_from_user_hexagon(to, from, n)
#define	__copy_to_user(to, from, n)   __copy_to_user_hexagon(to, from, n)
#define	__clear_user(a, s)   __clear_user_hexagon((a), (s))
#define	__strncpy_from_user(dst, src, n)   hexagon_strncpy_from_user(dst, src, n)
#define	__strnlen_user   __strnlen_user

Functions
unsigned long	__copy_from_user_hexagon (void *to, const void __user *from, unsigned long n)
unsigned long	__copy_to_user_hexagon (void __user *to, const void *from, unsigned long n)
__kernel_size_t	__clear_user_hexagon (void __user *dest, unsigned long count)
long	__strnlen_user (const char __user *src, long n)

Macro Definition Documentation

#define __access_ok	(		addr,
			size
	)

Value:

((get_fs().seg == KERNEL_DS.seg) || \
    (((unsigned long)addr < get_fs().seg) && \
      (unsigned long)size < (get_fs().seg - (unsigned long)addr)))

Definition at line 55 of file uaccess.h.

#define __clear_user	(		a,
			s
	)		__clear_user_hexagon((a), (s))

Definition at line 85 of file uaccess.h.

#define __copy_from_user	(		to,
			from,
			n
	)		__copy_from_user_hexagon(to, from, n)

Definition at line 75 of file uaccess.h.

#define __copy_to_user	(		to,
			from,
			n
	)		__copy_to_user_hexagon(to, from, n)

Definition at line 76 of file uaccess.h.

#define __strncpy_from_user	(		dst,
			src,
			n
	)		hexagon_strncpy_from_user(dst, src, n)

Definition at line 87 of file uaccess.h.

#define __strnlen_user   __strnlen_user

Definition at line 90 of file uaccess.h.

#define VERIFY_READ   0

Definition at line 52 of file uaccess.h.

#define VERIFY_WRITE   1

Definition at line 53 of file uaccess.h.

Function Documentation

__kernel_size_t __clear_user_hexagon	(	void __user *	dest,
		unsigned long	count
	)

Definition at line 35 of file uaccess.c.

unsigned long __copy_from_user_hexagon	(	void *	to,
		const void __user *	from,
		unsigned long	n
	)

unsigned long __copy_to_user_hexagon	(	void __user *	to,
		const void *	from,
		unsigned long	n
	)

long __strnlen_user	(	const char __user *	src,
		long	n
	)