1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
|
#ifndef _HACK_ASM_UACCESS_H_
#define _HACK_ASM_UACCESS_H_
#include <linux/mm.h>
#define MAKE_MM_SEG(s) XXX
#define KERNEL_DS XXX
#define USER_DS XXX
#define get_ds() XXX
#define get_fs() XXX
#define set_fs(x) XXX
#define segment_eq(a,b) XXX
extern int __verify_write(const void *, unsigned long);
#define __verify_write XXX
#define __addr_ok(addr) (1)
#define __range_ok(addr,size) (1)
#define access_ok(type,addr,size) (1)
#define put_user(x,ptr) (*(ptr) = (x), 0)
#define get_user(x,ptr) ((x) = *(ptr), 0)
#define __get_user(x,ptr) get_user((x), (ptr))
/* This is used to constitute an arbitrarily-sized memory clobber in an asm. */
struct __large_struct { unsigned long buf[100]; };
#define __m(x) (*(struct __large_struct *)(x))
/*
* The "xxx_ret" versions return constant specified in third argument, if
* something bad happens. These macros can be optimized for the
* case of just returning from the function xxx_ret is used.
*/
#define put_user_ret(x,ptr,ret) ({ if (put_user(x,ptr)) return ret; })
#define get_user_ret(x,ptr,ret) ({ if (get_user(x,ptr)) return ret; })
#define copy_to_user(to,from,n) (memcpy ((to), (from), (n)), 0)
#define copy_from_user(to,from,n) (memcpy ((to), (from), (n)), 0)
#define clear_user(mem, len) (bzero ((mem), (len)), 0)
#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; })
#endif
|
