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
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
|
/*
* Helper routines to provide target memory access for semihosting
* syscalls in system emulation mode.
*
* Copyright (c) 2007 CodeSourcery.
*
* This code is licensed under the GPL
*/
#ifndef SEMIHOSTING_UACCESS_H
#define SEMIHOSTING_UACCESS_H
#ifdef CONFIG_USER_ONLY
#error Cannot include semihosting/uaccess.h from user emulation
#endif
#include "exec/cpu-common.h"
#include "exec/cpu-defs.h"
#include "exec/tswap.h"
#include "exec/page-protection.h"
/**
* get_user_u64:
*
* Returns: 0 on success, -1 on error.
*/
#define get_user_u64(val, addr) \
({ uint64_t val_ = 0; \
int ret_ = cpu_memory_rw_debug(env_cpu(env), (addr), \
&val_, sizeof(val_), 0); \
(val) = tswap64(val_); ret_; })
/**
* get_user_u32:
*
* Returns: 0 on success, -1 on error.
*/
#define get_user_u32(val, addr) \
({ uint32_t val_ = 0; \
int ret_ = cpu_memory_rw_debug(env_cpu(env), (addr), \
&val_, sizeof(val_), 0); \
(val) = tswap32(val_); ret_; })
/**
* get_user_u8:
*
* Returns: 0 on success, -1 on error.
*/
#define get_user_u8(val, addr) \
({ uint8_t val_ = 0; \
int ret_ = cpu_memory_rw_debug(env_cpu(env), (addr), \
&val_, sizeof(val_), 0); \
(val) = val_; ret_; })
/**
* get_user_ual:
*
* Returns: 0 on success, -1 on error.
*/
#define get_user_ual(arg, p) get_user_u32(arg, p)
/**
* put_user_u64:
*
* Returns: 0 on success, -1 on error.
*/
#define put_user_u64(val, addr) \
({ uint64_t val_ = tswap64(val); \
cpu_memory_rw_debug(env_cpu(env), (addr), &val_, sizeof(val_), 1); })
/**
* put_user_u32:
*
* Returns: 0 on success, -1 on error.
*/
#define put_user_u32(val, addr) \
({ uint32_t val_ = tswap32(val); \
cpu_memory_rw_debug(env_cpu(env), (addr), &val_, sizeof(val_), 1); })
/**
* put_user_ual:
*
* Returns: 0 on success, -1 on error.
*/
#define put_user_ual(arg, p) put_user_u32(arg, p)
/**
* uaccess_lock_user:
*
* The returned pointer should be freed using uaccess_unlock_user().
*/
void *uaccess_lock_user(CPUArchState *env, target_ulong addr,
target_ulong len, bool copy);
/**
* lock_user:
*
* The returned pointer should be freed using unlock_user().
*/
#define lock_user(type, p, len, copy) uaccess_lock_user(env, p, len, copy)
/**
* uaccess_lock_user_string:
*
* The returned string should be freed using uaccess_unlock_user().
*/
char *uaccess_lock_user_string(CPUArchState *env, target_ulong addr);
/**
* uaccess_lock_user_string:
*
* The returned string should be freed using unlock_user().
*/
#define lock_user_string(p) uaccess_lock_user_string(env, p)
void uaccess_unlock_user(CPUArchState *env, void *p,
target_ulong addr, target_ulong len);
#define unlock_user(s, args, len) uaccess_unlock_user(env, s, args, len)
ssize_t uaccess_strlen_user(CPUArchState *env, target_ulong addr);
#define target_strlen(p) uaccess_strlen_user(env, p)
#endif /* SEMIHOSTING_SOFTMMU_UACCESS_H */
|
