2 * This file is part of UBIFS.
4 * Copyright (C) 2006-2008 Nokia Corporation.
6 * This program is free software; you can redistribute it and/or modify it
7 * under the terms of the GNU General Public License version 2 as published by
8 * the Free Software Foundation.
10 * This program is distributed in the hope that it will be useful, but WITHOUT
11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
15 * You should have received a copy of the GNU General Public License along with
16 * this program; if not, write to the Free Software Foundation, Inc., 51
17 * Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
19 * Authors: Artem Bityutskiy (Битюцкий Артём)
23 #ifndef __UBIFS_DEBUG_H__
24 #define __UBIFS_DEBUG_H__
26 #ifdef CONFIG_UBIFS_FS_DEBUG
28 #define UBIFS_DBG(op) op
30 #define ubifs_assert(expr) do { \
31 if (unlikely(!(expr))) { \
32 printk(KERN_CRIT "UBIFS assert failed in %s at %u (pid %d)\n", \
33 __func__, __LINE__, current->pid); \
38 #define ubifs_assert_cmt_locked(c) do { \
39 if (unlikely(down_write_trylock(&(c)->commit_sem))) { \
40 up_write(&(c)->commit_sem); \
41 printk(KERN_CRIT "commit lock is not locked!\n"); \
46 #define dbg_dump_stack() do { \
47 if (!dbg_failure_mode) \
51 /* Generic debugging messages */
52 #define dbg_msg(fmt, ...) do { \
53 spin_lock(&dbg_lock); \
54 printk(KERN_DEBUG "UBIFS DBG (pid %d): %s: " fmt "\n", current->pid, \
55 __func__, ##__VA_ARGS__); \
56 spin_unlock(&dbg_lock); \
59 #define dbg_do_msg(typ, fmt, ...) do { \
60 if (ubifs_msg_flags & typ) \
61 dbg_msg(fmt, ##__VA_ARGS__); \
64 #define dbg_err(fmt, ...) do { \
65 spin_lock(&dbg_lock); \
66 ubifs_err(fmt, ##__VA_ARGS__); \
67 spin_unlock(&dbg_lock); \
70 const char *dbg_key_str0(const struct ubifs_info *c,
71 const union ubifs_key *key);
72 const char *dbg_key_str1(const struct ubifs_info *c,
73 const union ubifs_key *key);
76 * DBGKEY macros require @dbg_lock to be held, which it is in the dbg message
79 #define DBGKEY(key) dbg_key_str0(c, (key))
80 #define DBGKEY1(key) dbg_key_str1(c, (key))
82 /* General messages */
83 #define dbg_gen(fmt, ...) dbg_do_msg(UBIFS_MSG_GEN, fmt, ##__VA_ARGS__)
85 /* Additional journal messages */
86 #define dbg_jnl(fmt, ...) dbg_do_msg(UBIFS_MSG_JNL, fmt, ##__VA_ARGS__)
88 /* Additional TNC messages */
89 #define dbg_tnc(fmt, ...) dbg_do_msg(UBIFS_MSG_TNC, fmt, ##__VA_ARGS__)
91 /* Additional lprops messages */
92 #define dbg_lp(fmt, ...) dbg_do_msg(UBIFS_MSG_LP, fmt, ##__VA_ARGS__)
94 /* Additional LEB find messages */
95 #define dbg_find(fmt, ...) dbg_do_msg(UBIFS_MSG_FIND, fmt, ##__VA_ARGS__)
97 /* Additional mount messages */
98 #define dbg_mnt(fmt, ...) dbg_do_msg(UBIFS_MSG_MNT, fmt, ##__VA_ARGS__)
100 /* Additional I/O messages */
101 #define dbg_io(fmt, ...) dbg_do_msg(UBIFS_MSG_IO, fmt, ##__VA_ARGS__)
103 /* Additional commit messages */
104 #define dbg_cmt(fmt, ...) dbg_do_msg(UBIFS_MSG_CMT, fmt, ##__VA_ARGS__)
106 /* Additional budgeting messages */
107 #define dbg_budg(fmt, ...) dbg_do_msg(UBIFS_MSG_BUDG, fmt, ##__VA_ARGS__)
109 /* Additional log messages */
110 #define dbg_log(fmt, ...) dbg_do_msg(UBIFS_MSG_LOG, fmt, ##__VA_ARGS__)
112 /* Additional gc messages */
113 #define dbg_gc(fmt, ...) dbg_do_msg(UBIFS_MSG_GC, fmt, ##__VA_ARGS__)
115 /* Additional scan messages */
116 #define dbg_scan(fmt, ...) dbg_do_msg(UBIFS_MSG_SCAN, fmt, ##__VA_ARGS__)
118 /* Additional recovery messages */
119 #define dbg_rcvry(fmt, ...) dbg_do_msg(UBIFS_MSG_RCVRY, fmt, ##__VA_ARGS__)
122 * Debugging message type flags (must match msg_type_names in debug.c).
124 * UBIFS_MSG_GEN: general messages
125 * UBIFS_MSG_JNL: journal messages
126 * UBIFS_MSG_MNT: mount messages
127 * UBIFS_MSG_CMT: commit messages
128 * UBIFS_MSG_FIND: LEB find messages
129 * UBIFS_MSG_BUDG: budgeting messages
130 * UBIFS_MSG_GC: garbage collection messages
131 * UBIFS_MSG_TNC: TNC messages
132 * UBIFS_MSG_LP: lprops messages
133 * UBIFS_MSG_IO: I/O messages
134 * UBIFS_MSG_LOG: log messages
135 * UBIFS_MSG_SCAN: scan messages
136 * UBIFS_MSG_RCVRY: recovery messages
143 UBIFS_MSG_FIND = 0x10,
144 UBIFS_MSG_BUDG = 0x20,
146 UBIFS_MSG_TNC = 0x80,
147 UBIFS_MSG_LP = 0x100,
148 UBIFS_MSG_IO = 0x200,
149 UBIFS_MSG_LOG = 0x400,
150 UBIFS_MSG_SCAN = 0x800,
151 UBIFS_MSG_RCVRY = 0x1000,
154 /* Debugging message type flags for each default debug message level */
155 #define UBIFS_MSG_LVL_0 0
156 #define UBIFS_MSG_LVL_1 0x1
157 #define UBIFS_MSG_LVL_2 0x7f
158 #define UBIFS_MSG_LVL_3 0xffff
161 * Debugging check flags (must match chk_names in debug.c).
163 * UBIFS_CHK_GEN: general checks
164 * UBIFS_CHK_TNC: check TNC
165 * UBIFS_CHK_IDX_SZ: check index size
166 * UBIFS_CHK_ORPH: check orphans
167 * UBIFS_CHK_OLD_IDX: check the old index
168 * UBIFS_CHK_LPROPS: check lprops
169 * UBIFS_CHK_FS: check the file-system
174 UBIFS_CHK_IDX_SZ = 0x4,
175 UBIFS_CHK_ORPH = 0x8,
176 UBIFS_CHK_OLD_IDX = 0x10,
177 UBIFS_CHK_LPROPS = 0x20,
182 * Special testing flags (must match tst_names in debug.c).
184 * UBIFS_TST_FORCE_IN_THE_GAPS: force the use of in-the-gaps method
185 * UBIFS_TST_RCVRY: failure mode for recovery testing
188 UBIFS_TST_FORCE_IN_THE_GAPS = 0x2,
189 UBIFS_TST_RCVRY = 0x4,
192 #if CONFIG_UBIFS_FS_DEBUG_MSG_LVL == 1
193 #define UBIFS_MSG_FLAGS_DEFAULT UBIFS_MSG_LVL_1
194 #elif CONFIG_UBIFS_FS_DEBUG_MSG_LVL == 2
195 #define UBIFS_MSG_FLAGS_DEFAULT UBIFS_MSG_LVL_2
196 #elif CONFIG_UBIFS_FS_DEBUG_MSG_LVL == 3
197 #define UBIFS_MSG_FLAGS_DEFAULT UBIFS_MSG_LVL_3
199 #define UBIFS_MSG_FLAGS_DEFAULT UBIFS_MSG_LVL_0
202 #ifdef CONFIG_UBIFS_FS_DEBUG_CHKS
203 #define UBIFS_CHK_FLAGS_DEFAULT 0xffffffff
205 #define UBIFS_CHK_FLAGS_DEFAULT 0
208 extern spinlock_t dbg_lock;
210 extern unsigned int ubifs_msg_flags;
211 extern unsigned int ubifs_chk_flags;
212 extern unsigned int ubifs_tst_flags;
216 const char *dbg_ntype(int type);
217 const char *dbg_cstate(int cmt_state);
218 const char *dbg_get_key_dump(const struct ubifs_info *c,
219 const union ubifs_key *key);
220 void dbg_dump_inode(const struct ubifs_info *c, const struct inode *inode);
221 void dbg_dump_node(const struct ubifs_info *c, const void *node);
222 void dbg_dump_budget_req(const struct ubifs_budget_req *req);
223 void dbg_dump_lstats(const struct ubifs_lp_stats *lst);
224 void dbg_dump_budg(struct ubifs_info *c);
225 void dbg_dump_lprop(const struct ubifs_info *c, const struct ubifs_lprops *lp);
226 void dbg_dump_lprops(struct ubifs_info *c);
227 void dbg_dump_leb(const struct ubifs_info *c, int lnum);
228 void dbg_dump_znode(const struct ubifs_info *c,
229 const struct ubifs_znode *znode);
230 void dbg_dump_heap(struct ubifs_info *c, struct ubifs_lpt_heap *heap, int cat);
231 void dbg_dump_pnode(struct ubifs_info *c, struct ubifs_pnode *pnode,
232 struct ubifs_nnode *parent, int iip);
233 void dbg_dump_tnc(struct ubifs_info *c);
234 void dbg_dump_index(struct ubifs_info *c);
236 /* Checking helper functions */
238 typedef int (*dbg_leaf_callback)(struct ubifs_info *c,
239 struct ubifs_zbranch *zbr, void *priv);
240 typedef int (*dbg_znode_callback)(struct ubifs_info *c,
241 struct ubifs_znode *znode, void *priv);
242 int dbg_walk_index(struct ubifs_info *c, dbg_leaf_callback leaf_cb,
243 dbg_znode_callback znode_cb, void *priv);
245 /* Checking functions */
247 int dbg_check_lprops(struct ubifs_info *c);
248 int dbg_old_index_check_init(struct ubifs_info *c, struct ubifs_zbranch *zroot);
249 int dbg_check_old_index(struct ubifs_info *c, struct ubifs_zbranch *zroot);
250 int dbg_check_cats(struct ubifs_info *c);
251 int dbg_check_ltab(struct ubifs_info *c);
252 int dbg_check_synced_i_size(struct inode *inode);
253 int dbg_check_dir_size(struct ubifs_info *c, const struct inode *dir);
254 int dbg_check_tnc(struct ubifs_info *c, int extra);
255 int dbg_check_idx_size(struct ubifs_info *c, long long idx_size);
256 int dbg_check_filesystem(struct ubifs_info *c);
257 void dbg_check_heap(struct ubifs_info *c, struct ubifs_lpt_heap *heap, int cat,
259 int dbg_check_lprops(struct ubifs_info *c);
260 int dbg_check_lpt_nodes(struct ubifs_info *c, struct ubifs_cnode *cnode,
263 /* Force the use of in-the-gaps method for testing */
265 #define dbg_force_in_the_gaps_enabled \
266 (ubifs_tst_flags & UBIFS_TST_FORCE_IN_THE_GAPS)
268 int dbg_force_in_the_gaps(void);
270 /* Failure mode for recovery testing */
272 #define dbg_failure_mode (ubifs_tst_flags & UBIFS_TST_RCVRY)
274 void dbg_failure_mode_registration(struct ubifs_info *c);
275 void dbg_failure_mode_deregistration(struct ubifs_info *c);
277 #ifndef UBIFS_DBG_PRESERVE_UBI
279 #define ubi_leb_read dbg_leb_read
280 #define ubi_leb_write dbg_leb_write
281 #define ubi_leb_change dbg_leb_change
282 #define ubi_leb_erase dbg_leb_erase
283 #define ubi_leb_unmap dbg_leb_unmap
284 #define ubi_is_mapped dbg_is_mapped
285 #define ubi_leb_map dbg_leb_map
289 int dbg_leb_read(struct ubi_volume_desc *desc, int lnum, char *buf, int offset,
291 int dbg_leb_write(struct ubi_volume_desc *desc, int lnum, const void *buf,
292 int offset, int len, int dtype);
293 int dbg_leb_change(struct ubi_volume_desc *desc, int lnum, const void *buf,
295 int dbg_leb_erase(struct ubi_volume_desc *desc, int lnum);
296 int dbg_leb_unmap(struct ubi_volume_desc *desc, int lnum);
297 int dbg_is_mapped(struct ubi_volume_desc *desc, int lnum);
298 int dbg_leb_map(struct ubi_volume_desc *desc, int lnum, int dtype);
300 static inline int dbg_read(struct ubi_volume_desc *desc, int lnum, char *buf,
303 return dbg_leb_read(desc, lnum, buf, offset, len, 0);
306 static inline int dbg_write(struct ubi_volume_desc *desc, int lnum,
307 const void *buf, int offset, int len)
309 return dbg_leb_write(desc, lnum, buf, offset, len, UBI_UNKNOWN);
312 static inline int dbg_change(struct ubi_volume_desc *desc, int lnum,
313 const void *buf, int len)
315 return dbg_leb_change(desc, lnum, buf, len, UBI_UNKNOWN);
318 #else /* !CONFIG_UBIFS_FS_DEBUG */
320 #define UBIFS_DBG(op)
322 /* Use "if (0)" to make compiler check arguments even if debugging is off */
323 #define ubifs_assert(expr) do { \
325 printk(KERN_CRIT "UBIFS assert failed in %s at %u (pid %d)\n", \
326 __func__, __LINE__, current->pid); \
329 #define dbg_err(fmt, ...) do { \
331 ubifs_err(fmt, ##__VA_ARGS__); \
334 #define dbg_msg(fmt, ...) do { \
336 printk(KERN_DEBUG "UBIFS DBG (pid %d): %s: " fmt "\n", \
337 current->pid, __func__, ##__VA_ARGS__); \
340 #define dbg_dump_stack()
341 #define ubifs_assert_cmt_locked(c)
343 #define dbg_gen(fmt, ...) dbg_msg(fmt, ##__VA_ARGS__)
344 #define dbg_jnl(fmt, ...) dbg_msg(fmt, ##__VA_ARGS__)
345 #define dbg_tnc(fmt, ...) dbg_msg(fmt, ##__VA_ARGS__)
346 #define dbg_lp(fmt, ...) dbg_msg(fmt, ##__VA_ARGS__)
347 #define dbg_find(fmt, ...) dbg_msg(fmt, ##__VA_ARGS__)
348 #define dbg_mnt(fmt, ...) dbg_msg(fmt, ##__VA_ARGS__)
349 #define dbg_io(fmt, ...) dbg_msg(fmt, ##__VA_ARGS__)
350 #define dbg_cmt(fmt, ...) dbg_msg(fmt, ##__VA_ARGS__)
351 #define dbg_budg(fmt, ...) dbg_msg(fmt, ##__VA_ARGS__)
352 #define dbg_log(fmt, ...) dbg_msg(fmt, ##__VA_ARGS__)
353 #define dbg_gc(fmt, ...) dbg_msg(fmt, ##__VA_ARGS__)
354 #define dbg_scan(fmt, ...) dbg_msg(fmt, ##__VA_ARGS__)
355 #define dbg_rcvry(fmt, ...) dbg_msg(fmt, ##__VA_ARGS__)
357 #define DBGKEY(key) ((char *)(key))
358 #define DBGKEY1(key) ((char *)(key))
360 #define dbg_ntype(type) ""
361 #define dbg_cstate(cmt_state) ""
362 #define dbg_get_key_dump(c, key) ({})
363 #define dbg_dump_inode(c, inode) ({})
364 #define dbg_dump_node(c, node) ({})
365 #define dbg_dump_budget_req(req) ({})
366 #define dbg_dump_lstats(lst) ({})
367 #define dbg_dump_budg(c) ({})
368 #define dbg_dump_lprop(c, lp) ({})
369 #define dbg_dump_lprops(c) ({})
370 #define dbg_dump_leb(c, lnum) ({})
371 #define dbg_dump_znode(c, znode) ({})
372 #define dbg_dump_heap(c, heap, cat) ({})
373 #define dbg_dump_pnode(c, pnode, parent, iip) ({})
374 #define dbg_dump_tnc(c) ({})
375 #define dbg_dump_index(c) ({})
377 #define dbg_walk_index(c, leaf_cb, znode_cb, priv) 0
378 #define dbg_old_index_check_init(c, zroot) 0
379 #define dbg_check_old_index(c, zroot) 0
380 #define dbg_check_cats(c) 0
381 #define dbg_check_ltab(c) 0
382 #define dbg_check_synced_i_size(inode) 0
383 #define dbg_check_dir_size(c, dir) 0
384 #define dbg_check_tnc(c, x) 0
385 #define dbg_check_idx_size(c, idx_size) 0
386 #define dbg_check_filesystem(c) 0
387 #define dbg_check_heap(c, heap, cat, add_pos) ({})
388 #define dbg_check_lprops(c) 0
389 #define dbg_check_lpt_nodes(c, cnode, row, col) 0
390 #define dbg_force_in_the_gaps_enabled 0
391 #define dbg_force_in_the_gaps() 0
392 #define dbg_failure_mode 0
393 #define dbg_failure_mode_registration(c) ({})
394 #define dbg_failure_mode_deregistration(c) ({})
396 #endif /* !CONFIG_UBIFS_FS_DEBUG */
398 #endif /* !__UBIFS_DEBUG_H__ */