uaccess_no.h File Reference

#include <linux/sched.h>
#include <linux/mm.h>
#include <linux/string.h>
#include <asm/segment.h>

Go to the source code of this file.

Data Structures
struct	exception_table_entry

Macros
#define	VERIFY_READ   0
#define	VERIFY_WRITE   1
#define	access_ok(type, addr, size)   _access_ok((unsigned long)(addr),(size))
#define	put_user(x, ptr)
#define	__put_user(x, ptr)   put_user(x, ptr)
#define	__ptr(x)   ((unsigned long *)(x))
#define	__put_user_asm(err, x, ptr, bwl)
#define	get_user(x, ptr)
#define	__get_user(x, ptr)   get_user(x, ptr)
#define	__get_user_asm(err, x, ptr, bwl, reg)
#define	copy_from_user(to, from, n)   (memcpy(to, from, n), 0)
#define	copy_to_user(to, from, n)   (memcpy(to, from, n), 0)
#define	__copy_from_user(to, from, n)   copy_from_user(to, from, n)
#define	__copy_to_user(to, from, n)   copy_to_user(to, from, n)
#define	__copy_to_user_inatomic   __copy_to_user
#define	__copy_from_user_inatomic   __copy_from_user
#define	copy_to_user_ret(to, from, n, retval)   ({ if (copy_to_user(to,from,n)) return retval; })
#define	copy_from_user_ret(to, from, n, retval)   ({ if (copy_from_user(to,from,n)) return retval; })
#define	strlen_user(str)   strnlen_user(str, 32767)
#define	clear_user(to, n)   __clear_user(to,n)

Functions
unsigned long	search_exception_table (unsigned long)
int	__put_user_bad (void)
int	__get_user_bad (void)

Macro Definition Documentation

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

Definition at line 133 of file uaccess_no.h.

#define __copy_from_user_inatomic   __copy_from_user

Definition at line 136 of file uaccess_no.h.

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

Definition at line 134 of file uaccess_no.h.

#define __copy_to_user_inatomic   __copy_to_user

Definition at line 135 of file uaccess_no.h.

#define __get_user	(		x,
			ptr
	)		get_user(x, ptr)

Definition at line 121 of file uaccess_no.h.

#define __get_user_asm	(		err,
			x,
			ptr,
			bwl,
			reg
	)

Value:

__asm__ ("move" #bwl " %1,%0"               \
         : "=d" (x)                 \
         : "m" (*__ptr(ptr)))

Definition at line 125 of file uaccess_no.h.

#define __ptr

(

x

)

((unsigned long *)(x))

Definition at line 89 of file uaccess_no.h.

#define __put_user	(		x,
			ptr
	)		put_user(x, ptr)

Definition at line 79 of file uaccess_no.h.

#define __put_user_asm	(		err,
			x,
			ptr,
			bwl
	)

Value:

__asm__ ("move" #bwl " %0,%1"               \
        : /* no outputs */                      \
        :"d" (x),"m" (*__ptr(ptr)) : "memory")

Definition at line 91 of file uaccess_no.h.

#define access_ok	(		type,
			addr,
			size
	)		_access_ok((unsigned long)(addr),(size))

Definition at line 16 of file uaccess_no.h.

#define clear_user	(		to,
			n
	)		__clear_user(to,n)

Definition at line 179 of file uaccess_no.h.

#define copy_from_user	(		to,
			from,
			n
	)		(memcpy(to, from, n), 0)

Definition at line 130 of file uaccess_no.h.

#define copy_from_user_ret	(		to,
			from,
			n,
			retval
	)		({ if (copy_from_user(to,from,n)) return retval; })

Definition at line 140 of file uaccess_no.h.

#define copy_to_user	(		to,
			from,
			n
	)		(memcpy(to, from, n), 0)

Definition at line 131 of file uaccess_no.h.

#define copy_to_user_ret	(		to,
			from,
			n,
			retval
	)		({ if (copy_to_user(to,from,n)) return retval; })

Definition at line 138 of file uaccess_no.h.

#define get_user	(		x,
			ptr
	)

Value:

({                              \
    int __gu_err = 0;                       \
    typeof(x) __gu_val = 0;                 \
    switch (sizeof(*(ptr))) {                   \
    case 1:                         \
    __get_user_asm(__gu_err, __gu_val, ptr, b, "=d");   \
    break;                          \
    case 2:                         \
    __get_user_asm(__gu_err, __gu_val, ptr, w, "=r");   \
    break;                          \
    case 4:                         \
    __get_user_asm(__gu_err, __gu_val, ptr, l, "=r");   \
    break;                          \
    case 8:                         \
    memcpy((void *) &__gu_val, ptr, sizeof (*(ptr)));   \
    break;                          \
    default:                            \
    __gu_val = 0;                       \
    __gu_err = __get_user_bad();                \
    break;                          \
    }                               \
    (x) = (typeof(*(ptr))) __gu_val;                \
    __gu_err;                           \
})

Definition at line 96 of file uaccess_no.h.

#define put_user	(		x,
			ptr
	)

Value:

({                          \
    int __pu_err = 0;                   \
    typeof(*(ptr)) __pu_val = (x);          \
    switch (sizeof (*(ptr))) {              \
    case 1:                     \
    __put_user_asm(__pu_err, __pu_val, ptr, b); \
    break;                      \
    case 2:                     \
    __put_user_asm(__pu_err, __pu_val, ptr, w); \
    break;                      \
    case 4:                     \
    __put_user_asm(__pu_err, __pu_val, ptr, l); \
    break;                      \
    case 8:                     \
    memcpy(ptr, &__pu_val, sizeof (*(ptr))); \
    break;                      \
    default:                        \
    __pu_err = __put_user_bad();            \
    break;                      \
    }                           \
    __pu_err;                       \
})

Definition at line 56 of file uaccess_no.h.

#define strlen_user

(

str

)

strnlen_user(str, 32767)

Definition at line 166 of file uaccess_no.h.

#define VERIFY_READ   0

Definition at line 13 of file uaccess_no.h.

#define VERIFY_WRITE   1

Definition at line 14 of file uaccess_no.h.

Function Documentation

int __get_user_bad

(

void

)

int __put_user_bad

(

void

)

unsigned long search_exception_table

(

unsigned

long

)

Definition at line 43 of file extable.c.