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
|
/*
* Copyright (C) 2000 - 2003 Jeff Dike (jdike@addtoit.com)
* Licensed under the GPL
*/
#ifndef __TT_UACCESS_H
#define __TT_UACCESS_H
#include "linux/string.h"
#include "linux/sched.h"
#include "asm/processor.h"
#include "asm/errno.h"
#include "asm/current.h"
#include "asm/a.out.h"
#include "uml_uaccess.h"
#define ABOVE_KMEM (16 * 1024 * 1024)
extern unsigned long end_vm;
extern unsigned long uml_physmem;
#define is_stack(addr, size) \
(((unsigned long) (addr) < STACK_TOP) && \
((unsigned long) (addr) >= STACK_TOP - ABOVE_KMEM) && \
(((unsigned long) (addr) + (size)) <= STACK_TOP))
#define access_ok_tt(type, addr, size) \
(is_stack(addr, size))
extern int __do_copy_from_user(void *to, const void *from, int n,
void **fault_addr, void **fault_catcher);
extern int __do_strncpy_from_user(char *dst, const char *src, size_t n,
void **fault_addr, void **fault_catcher);
extern int __do_clear_user(void *mem, size_t len, void **fault_addr,
void **fault_catcher);
extern int __do_strnlen_user(const char *str, unsigned long n,
void **fault_addr, void **fault_catcher);
extern int copy_from_user_tt(void *to, const void __user *from, int n);
extern int copy_to_user_tt(void __user *to, const void *from, int n);
extern int strncpy_from_user_tt(char *dst, const char __user *src, int count);
extern int __clear_user_tt(void __user *mem, int len);
extern int clear_user_tt(void __user *mem, int len);
extern int strnlen_user_tt(const void __user *str, int len);
#endif
|
