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
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
|
/*
* Copyright (c) International Business Machines Corp., 2006
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
* the GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* Author: Artem Bityutskiy (Битюцкий Артём)
*/
#ifndef __UBI_DEBUG_H__
#define __UBI_DEBUG_H__
#ifdef CONFIG_MTD_UBI_DEBUG
#include <linux/random.h>
#define ubi_assert(expr) BUG_ON(!(expr))
#define dbg_err(fmt, ...) ubi_err(fmt, ##__VA_ARGS__)
#else
#define ubi_assert(expr) ({})
#define dbg_err(fmt, ...) ({})
#endif
#ifdef CONFIG_MTD_UBI_DEBUG_DISABLE_BGT
#define DBG_DISABLE_BGT 1
#else
#define DBG_DISABLE_BGT 0
#endif
#ifdef CONFIG_MTD_UBI_DEBUG_MSG
/* Generic debugging message */
#define dbg_msg(fmt, ...) \
printk(KERN_DEBUG "UBI DBG (pid %d): %s: " fmt "\n", \
current->pid, __func__, ##__VA_ARGS__)
#define ubi_dbg_dump_stack() dump_stack()
struct ubi_ec_hdr;
struct ubi_vid_hdr;
struct ubi_volume;
struct ubi_vtbl_record;
struct ubi_scan_volume;
struct ubi_scan_leb;
struct ubi_mkvol_req;
void ubi_dbg_dump_ec_hdr(const struct ubi_ec_hdr *ec_hdr);
void ubi_dbg_dump_vid_hdr(const struct ubi_vid_hdr *vid_hdr);
void ubi_dbg_dump_vol_info(const struct ubi_volume *vol);
void ubi_dbg_dump_vtbl_record(const struct ubi_vtbl_record *r, int idx);
void ubi_dbg_dump_sv(const struct ubi_scan_volume *sv);
void ubi_dbg_dump_seb(const struct ubi_scan_leb *seb, int type);
void ubi_dbg_dump_mkvol_req(const struct ubi_mkvol_req *req);
#else
#define dbg_msg(fmt, ...) ({})
#define ubi_dbg_dump_stack() ({})
#define ubi_dbg_dump_ec_hdr(ec_hdr) ({})
#define ubi_dbg_dump_vid_hdr(vid_hdr) ({})
#define ubi_dbg_dump_vol_info(vol) ({})
#define ubi_dbg_dump_vtbl_record(r, idx) ({})
#define ubi_dbg_dump_sv(sv) ({})
#define ubi_dbg_dump_seb(seb, type) ({})
#define ubi_dbg_dump_mkvol_req(req) ({})
#endif /* CONFIG_MTD_UBI_DEBUG_MSG */
#ifdef CONFIG_MTD_UBI_DEBUG_MSG_EBA
/* Messages from the eraseblock association sub-system */
#define dbg_eba(fmt, ...) dbg_msg(fmt, ##__VA_ARGS__)
#else
#define dbg_eba(fmt, ...) ({})
#endif
#ifdef CONFIG_MTD_UBI_DEBUG_MSG_WL
/* Messages from the wear-leveling sub-system */
#define dbg_wl(fmt, ...) dbg_msg(fmt, ##__VA_ARGS__)
#else
#define dbg_wl(fmt, ...) ({})
#endif
#ifdef CONFIG_MTD_UBI_DEBUG_MSG_IO
/* Messages from the input/output sub-system */
#define dbg_io(fmt, ...) dbg_msg(fmt, ##__VA_ARGS__)
#else
#define dbg_io(fmt, ...) ({})
#endif
#ifdef CONFIG_MTD_UBI_DEBUG_MSG_BLD
/* Initialization and build messages */
#define dbg_bld(fmt, ...) dbg_msg(fmt, ##__VA_ARGS__)
#define UBI_IO_DEBUG 1
#else
#define dbg_bld(fmt, ...) ({})
#define UBI_IO_DEBUG 0
#endif
#ifdef CONFIG_MTD_UBI_DEBUG_EMULATE_BITFLIPS
/**
* ubi_dbg_is_bitflip - if it is time to emulate a bit-flip.
*
* Returns non-zero if a bit-flip should be emulated, otherwise returns zero.
*/
static inline int ubi_dbg_is_bitflip(void)
{
return !(random32() % 200);
}
#else
#define ubi_dbg_is_bitflip() 0
#endif
#ifdef CONFIG_MTD_UBI_DEBUG_EMULATE_WRITE_FAILURES
/**
* ubi_dbg_is_write_failure - if it is time to emulate a write failure.
*
* Returns non-zero if a write failure should be emulated, otherwise returns
* zero.
*/
static inline int ubi_dbg_is_write_failure(void)
{
return !(random32() % 500);
}
#else
#define ubi_dbg_is_write_failure() 0
#endif
#ifdef CONFIG_MTD_UBI_DEBUG_EMULATE_ERASE_FAILURES
/**
* ubi_dbg_is_erase_failure - if its time to emulate an erase failure.
*
* Returns non-zero if an erase failure should be emulated, otherwise returns
* zero.
*/
static inline int ubi_dbg_is_erase_failure(void)
{
return !(random32() % 400);
}
#else
#define ubi_dbg_is_erase_failure() 0
#endif
#endif /* !__UBI_DEBUG_H__ */
|
