4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License (the "License").
6 * You may not use this file except in compliance with the License.
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
22 * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
23 * Copyright (c) 2013 by Delphix. All rights reserved.
26 #ifndef _SYS_ZFS_DEBUG_H
27 #define _SYS_ZFS_DEBUG_H
42 * ZFS debugging - Always enabled for user space builds.
45 #if !defined(ZFS_DEBUG) && !defined(_KERNEL)
50 extern int zfs_recover;
52 #define ZFS_DEBUG_DPRINTF (1<<0)
53 #define ZFS_DEBUG_DBUF_VERIFY (1<<1)
54 #define ZFS_DEBUG_DNODE_VERIFY (1<<2)
55 #define ZFS_DEBUG_SNAPNAMES (1<<3)
56 #define ZFS_DEBUG_MODIFY (1<<4)
57 #define ZFS_DEBUG_SPA (1<<5)
58 #define ZFS_DEBUG_ZIO_FREE (1<<6)
61 * Always log zfs debug messages to the spl debug subsystem as SS_USER1.
62 * When the SPL is configured with debugging enabled these messages will
63 * appear in the internal spl debug log, otherwise they are a no-op.
67 #include <spl-debug.h>
68 #define dprintf(...) \
69 if (zfs_flags & ZFS_DEBUG_DPRINTF) \
70 __SDEBUG(NULL, SS_USER1, SD_DPRINTF, __VA_ARGS__)
73 * When zfs is running is user space the debugging is always enabled.
74 * The messages will be printed using the __dprintf() function and
75 * filtered based on the zfs_flags variable.
78 #define dprintf(...) \
79 if (zfs_flags & ZFS_DEBUG_DPRINTF) \
80 __dprintf(__FILE__, __func__, __LINE__, __VA_ARGS__)
84 extern void zfs_panic_recover(const char *fmt, ...);
86 typedef struct zfs_dbgmsg {
89 char zdm_msg[1]; /* variable length allocation */
92 extern void zfs_dbgmsg_init(void);
93 extern void zfs_dbgmsg_fini(void);
94 #if defined(_KERNEL) && defined(__linux__)
95 #define zfs_dbgmsg(...) dprintf(__VA_ARGS__)
97 extern void zfs_dbgmsg(const char *fmt, ...);
98 extern void zfs_dbgmsg_print(const char *tag);
102 extern int dprintf_find_string(const char *string);
109 #endif /* _SYS_ZFS_DEBUG_H */