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/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (the "License").
* You may not use this file except in compliance with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 2013 by Delphix. All rights reserved.
*/
#ifndef _SYS_ZFS_DEBUG_H
#define _SYS_ZFS_DEBUG_H
#ifdef __cplusplus
extern "C" {
#endif
#ifndef TRUE
#define TRUE 1
#endif
#ifndef FALSE
#define FALSE 0
#endif
/*
* ZFS debugging - Always enabled for user space builds.
*/
#if !defined(ZFS_DEBUG) && !defined(_KERNEL)
#define ZFS_DEBUG
#endif
extern int zfs_flags;
extern int zfs_recover;
#define ZFS_DEBUG_DPRINTF (1<<0)
#define ZFS_DEBUG_DBUF_VERIFY (1<<1)
#define ZFS_DEBUG_DNODE_VERIFY (1<<2)
#define ZFS_DEBUG_SNAPNAMES (1<<3)
#define ZFS_DEBUG_MODIFY (1<<4)
#define ZFS_DEBUG_SPA (1<<5)
#define ZFS_DEBUG_ZIO_FREE (1<<6)
/*
* Always log zfs debug messages to the spl debug subsystem as SS_USER1.
* When the SPL is configured with debugging enabled these messages will
* appear in the internal spl debug log, otherwise they are a no-op.
*/
#if defined(_KERNEL)
#include <spl-debug.h>
#define dprintf(...) \
if (zfs_flags & ZFS_DEBUG_DPRINTF) \
__SDEBUG(NULL, SS_USER1, SD_DPRINTF, __VA_ARGS__)
/*
* When zfs is running is user space the debugging is always enabled.
* The messages will be printed using the __dprintf() function and
* filtered based on the zfs_flags variable.
*/
#else
#define dprintf(...) \
if (zfs_flags & ZFS_DEBUG_DPRINTF) \
__dprintf(__FILE__, __func__, __LINE__, __VA_ARGS__)
#endif /* _KERNEL */
extern void zfs_panic_recover(const char *fmt, ...);
typedef struct zfs_dbgmsg {
list_node_t zdm_node;
time_t zdm_timestamp;
char zdm_msg[1]; /* variable length allocation */
} zfs_dbgmsg_t;
extern void zfs_dbgmsg_init(void);
extern void zfs_dbgmsg_fini(void);
#if defined(_KERNEL) && defined(__linux__)
#define zfs_dbgmsg(...) dprintf(__VA_ARGS__)
#else
extern void zfs_dbgmsg(const char *fmt, ...);
extern void zfs_dbgmsg_print(const char *tag);
#endif
#ifndef _KERNEL
extern int dprintf_find_string(const char *string);
#endif
#ifdef __cplusplus
}
#endif
#endif /* _SYS_ZFS_DEBUG_H */
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