1 /*
2  * debug.h - NTFS kernel debug support. Part of the Linux-NTFS project.
3  *
4  * Copyright (c) 2001-2004 Anton Altaparmakov
5  *
6  * This program/include file is free software; you can redistribute it and/or
7  * modify it under the terms of the GNU General Public License as published
8  * by the Free Software Foundation; either version 2 of the License, or
9  * (at your option) any later version.
10  *
11  * This program/include file is distributed in the hope that it will be
12  * useful, but WITHOUT ANY WARRANTY; without even the implied warranty
13  * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14  * GNU General Public License for more details.
15  *
16  * You should have received a copy of the GNU General Public License
17  * along with this program (in the main directory of the Linux-NTFS
18  * distribution in the file COPYING); if not, write to the Free Software
19  * Foundation,Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
20  */
21 
22 #ifndef _LINUX_NTFS_DEBUG_H
23 #define _LINUX_NTFS_DEBUG_H
24 
25 #include <linux/fs.h>
26 
27 #include "runlist.h"
28 
29 #ifdef DEBUG
30 
31 extern int debug_msgs;
32 
33 extern __printf(4, 5)
34 void __ntfs_debug(const char *file, int line, const char *function,
35 		  const char *format, ...);
36 /**
37  * ntfs_debug - write a debug level message to syslog
38  * @f:		a printf format string containing the message
39  * @...:	the variables to substitute into @f
40  *
41  * ntfs_debug() writes a DEBUG level message to the syslog but only if the
42  * driver was compiled with -DDEBUG. Otherwise, the call turns into a NOP.
43  */
44 #define ntfs_debug(f, a...)						\
45 	__ntfs_debug(__FILE__, __LINE__, __func__, f, ##a)
46 
47 extern void ntfs_debug_dump_runlist(const runlist_element *rl);
48 
49 #else	/* !DEBUG */
50 
51 #define ntfs_debug(fmt, ...)						\
52 do {									\
53 	if (0)								\
54 		no_printk(fmt, ##__VA_ARGS__);				\
55 } while (0)
56 
57 #define ntfs_debug_dump_runlist(rl)	do {} while (0)
58 
59 #endif	/* !DEBUG */
60 
61 extern  __printf(3, 4)
62 void __ntfs_warning(const char *function, const struct super_block *sb,
63 		    const char *fmt, ...);
64 #define ntfs_warning(sb, f, a...)	__ntfs_warning(__func__, sb, f, ##a)
65 
66 extern  __printf(3, 4)
67 void __ntfs_error(const char *function, const struct super_block *sb,
68 		  const char *fmt, ...);
69 #define ntfs_error(sb, f, a...)		__ntfs_error(__func__, sb, f, ##a)
70 
71 #endif /* _LINUX_NTFS_DEBUG_H */
72