zfs_debug.h revision 262120
1/* 2 * CDDL HEADER START 3 * 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. 7 * 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. 12 * 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] 18 * 19 * CDDL HEADER END 20 */ 21/* 22 * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. 23 * Copyright (c) 2013 by Delphix. All rights reserved. 24 */ 25 26#ifndef _SYS_ZFS_DEBUG_H 27#define _SYS_ZFS_DEBUG_H 28 29#ifdef __cplusplus 30extern "C" { 31#endif 32 33#ifndef TRUE 34#define TRUE 1 35#endif 36 37#ifndef FALSE 38#define FALSE 0 39#endif 40 41/* 42 * ZFS debugging 43 */ 44 45#if defined(DEBUG) || !defined(_KERNEL) 46#if !defined(ZFS_DEBUG) 47#define ZFS_DEBUG 48#endif 49#endif 50 51extern int zfs_flags; 52extern int zfs_recover; 53 54#define ZFS_DEBUG_DPRINTF (1<<0) 55#define ZFS_DEBUG_DBUF_VERIFY (1<<1) 56#define ZFS_DEBUG_DNODE_VERIFY (1<<2) 57#define ZFS_DEBUG_SNAPNAMES (1<<3) 58#define ZFS_DEBUG_MODIFY (1<<4) 59#define ZFS_DEBUG_SPA (1<<5) 60#define ZFS_DEBUG_ZIO_FREE (1<<6) 61 62#ifdef ZFS_DEBUG 63extern void __dprintf(const char *file, const char *func, 64 int line, const char *fmt, ...); 65#define dprintf(...) \ 66 if (zfs_flags & ZFS_DEBUG_DPRINTF) \ 67 __dprintf(__FILE__, __func__, __LINE__, __VA_ARGS__) 68#else 69#define dprintf(...) ((void)0) 70#endif /* ZFS_DEBUG */ 71 72extern void zfs_panic_recover(const char *fmt, ...); 73 74typedef struct zfs_dbgmsg { 75 list_node_t zdm_node; 76 time_t zdm_timestamp; 77 char zdm_msg[1]; /* variable length allocation */ 78} zfs_dbgmsg_t; 79 80extern void zfs_dbgmsg_init(void); 81extern void zfs_dbgmsg_fini(void); 82extern void zfs_dbgmsg(const char *fmt, ...); 83extern void zfs_dbgmsg_print(const char *tag); 84 85#ifdef illumos 86#ifndef _KERNEL 87extern int dprintf_find_string(const char *string); 88#endif 89#endif /* illumos */ 90 91#ifdef __cplusplus 92} 93#endif 94 95#endif /* _SYS_ZFS_DEBUG_H */ 96