1 /* 2 * JFFS2 -- Journalling Flash File System, Version 2. 3 * 4 * Copyright (C) 2001-2003 Red Hat, Inc. 5 * 6 * Created by David Woodhouse <dwmw2@infradead.org> 7 * 8 * For licensing information, see the file 'LICENCE' in this directory. 9 * 10 * $Id: debug.h,v 1.21 2005/11/07 11:14:39 gleixner Exp $ 11 * 12 */ 13 #ifndef _JFFS2_DEBUG_H_ 14 #define _JFFS2_DEBUG_H_ 15 16 #include <linux/config.h> 17 18 #ifndef CONFIG_JFFS2_FS_DEBUG 19 #define CONFIG_JFFS2_FS_DEBUG 0 20 #endif 21 22 #if CONFIG_JFFS2_FS_DEBUG > 0 23 /* Enable "paranoia" checks and dumps */ 24 #define JFFS2_DBG_PARANOIA_CHECKS 25 #define JFFS2_DBG_DUMPS 26 27 /* 28 * By defining/undefining the below macros one may select debugging messages 29 * fro specific JFFS2 subsystems. 30 */ 31 #define JFFS2_DBG_READINODE_MESSAGES 32 #define JFFS2_DBG_FRAGTREE_MESSAGES 33 #define JFFS2_DBG_DENTLIST_MESSAGES 34 #define JFFS2_DBG_NODEREF_MESSAGES 35 #define JFFS2_DBG_INOCACHE_MESSAGES 36 #define JFFS2_DBG_SUMMARY_MESSAGES 37 #define JFFS2_DBG_FSBUILD_MESSAGES 38 #endif 39 40 #if CONFIG_JFFS2_FS_DEBUG > 1 41 #define JFFS2_DBG_FRAGTREE2_MESSAGES 42 #define JFFS2_DBG_MEMALLOC_MESSAGES 43 #endif 44 45 /* Sanity checks are supposed to be light-weight and enabled by default */ 46 #define JFFS2_DBG_SANITY_CHECKS 47 48 /* 49 * Dx() are mainly used for debugging messages, they must go away and be 50 * superseded by nicer dbg_xxx() macros... 51 */ 52 #if CONFIG_JFFS2_FS_DEBUG > 0 53 #define D1(x) x 54 #else 55 #define D1(x) 56 #endif 57 58 #if CONFIG_JFFS2_FS_DEBUG > 1 59 #define D2(x) x 60 #else 61 #define D2(x) 62 #endif 63 64 /* The prefixes of JFFS2 messages */ 65 #define JFFS2_DBG_PREFIX "[JFFS2 DBG]" 66 #define JFFS2_ERR_PREFIX "JFFS2 error:" 67 #define JFFS2_WARN_PREFIX "JFFS2 warning:" 68 #define JFFS2_NOTICE_PREFIX "JFFS2 notice:" 69 70 #define JFFS2_ERR KERN_ERR 71 #define JFFS2_WARN KERN_WARNING 72 #define JFFS2_NOT KERN_NOTICE 73 #define JFFS2_DBG KERN_DEBUG 74 75 #define JFFS2_DBG_MSG_PREFIX JFFS2_DBG JFFS2_DBG_PREFIX 76 #define JFFS2_ERR_MSG_PREFIX JFFS2_ERR JFFS2_ERR_PREFIX 77 #define JFFS2_WARN_MSG_PREFIX JFFS2_WARN JFFS2_WARN_PREFIX 78 #define JFFS2_NOTICE_MSG_PREFIX JFFS2_NOT JFFS2_NOTICE_PREFIX 79 80 /* JFFS2 message macros */ 81 #define JFFS2_ERROR(fmt, ...) \ 82 do { \ 83 printk(JFFS2_ERR_MSG_PREFIX \ 84 " (%d) %s: " fmt, current->pid, \ 85 __FUNCTION__, ##__VA_ARGS__); \ 86 } while(0) 87 88 #define JFFS2_WARNING(fmt, ...) \ 89 do { \ 90 printk(JFFS2_WARN_MSG_PREFIX \ 91 " (%d) %s: " fmt, current->pid, \ 92 __FUNCTION__, ##__VA_ARGS__); \ 93 } while(0) 94 95 #define JFFS2_NOTICE(fmt, ...) \ 96 do { \ 97 printk(JFFS2_NOTICE_MSG_PREFIX \ 98 " (%d) %s: " fmt, current->pid, \ 99 __FUNCTION__, ##__VA_ARGS__); \ 100 } while(0) 101 102 #define JFFS2_DEBUG(fmt, ...) \ 103 do { \ 104 printk(JFFS2_DBG_MSG_PREFIX \ 105 " (%d) %s: " fmt, current->pid, \ 106 __FUNCTION__, ##__VA_ARGS__); \ 107 } while(0) 108 109 /* 110 * We split our debugging messages on several parts, depending on the JFFS2 111 * subsystem the message belongs to. 112 */ 113 /* Read inode debugging messages */ 114 #ifdef JFFS2_DBG_READINODE_MESSAGES 115 #define dbg_readinode(fmt, ...) JFFS2_DEBUG(fmt, ##__VA_ARGS__) 116 #else 117 #define dbg_readinode(fmt, ...) 118 #endif 119 120 /* Fragtree build debugging messages */ 121 #ifdef JFFS2_DBG_FRAGTREE_MESSAGES 122 #define dbg_fragtree(fmt, ...) JFFS2_DEBUG(fmt, ##__VA_ARGS__) 123 #else 124 #define dbg_fragtree(fmt, ...) 125 #endif 126 #ifdef JFFS2_DBG_FRAGTREE2_MESSAGES 127 #define dbg_fragtree2(fmt, ...) JFFS2_DEBUG(fmt, ##__VA_ARGS__) 128 #else 129 #define dbg_fragtree2(fmt, ...) 130 #endif 131 132 /* Directory entry list manilulation debugging messages */ 133 #ifdef JFFS2_DBG_DENTLIST_MESSAGES 134 #define dbg_dentlist(fmt, ...) JFFS2_DEBUG(fmt, ##__VA_ARGS__) 135 #else 136 #define dbg_dentlist(fmt, ...) 137 #endif 138 139 /* Print the messages about manipulating node_refs */ 140 #ifdef JFFS2_DBG_NODEREF_MESSAGES 141 #define dbg_noderef(fmt, ...) JFFS2_DEBUG(fmt, ##__VA_ARGS__) 142 #else 143 #define dbg_noderef(fmt, ...) 144 #endif 145 146 /* Manipulations with the list of inodes (JFFS2 inocache) */ 147 #ifdef JFFS2_DBG_INOCACHE_MESSAGES 148 #define dbg_inocache(fmt, ...) JFFS2_DEBUG(fmt, ##__VA_ARGS__) 149 #else 150 #define dbg_inocache(fmt, ...) 151 #endif 152 153 /* Summary debugging messages */ 154 #ifdef JFFS2_DBG_SUMMARY_MESSAGES 155 #define dbg_summary(fmt, ...) JFFS2_DEBUG(fmt, ##__VA_ARGS__) 156 #else 157 #define dbg_summary(fmt, ...) 158 #endif 159 160 /* File system build messages */ 161 #ifdef JFFS2_DBG_FSBUILD_MESSAGES 162 #define dbg_fsbuild(fmt, ...) JFFS2_DEBUG(fmt, ##__VA_ARGS__) 163 #else 164 #define dbg_fsbuild(fmt, ...) 165 #endif 166 167 /* Watch the object allocations */ 168 #ifdef JFFS2_DBG_MEMALLOC_MESSAGES 169 #define dbg_memalloc(fmt, ...) JFFS2_DEBUG(fmt, ##__VA_ARGS__) 170 #else 171 #define dbg_memalloc(fmt, ...) 172 #endif 173 174 175 /* "Sanity" checks */ 176 void 177 __jffs2_dbg_acct_sanity_check_nolock(struct jffs2_sb_info *c, 178 struct jffs2_eraseblock *jeb); 179 void 180 __jffs2_dbg_acct_sanity_check(struct jffs2_sb_info *c, 181 struct jffs2_eraseblock *jeb); 182 183 /* "Paranoia" checks */ 184 void 185 __jffs2_dbg_fragtree_paranoia_check(struct jffs2_inode_info *f); 186 void 187 __jffs2_dbg_fragtree_paranoia_check_nolock(struct jffs2_inode_info *f); 188 void 189 __jffs2_dbg_acct_paranoia_check(struct jffs2_sb_info *c, 190 struct jffs2_eraseblock *jeb); 191 void 192 __jffs2_dbg_acct_paranoia_check_nolock(struct jffs2_sb_info *c, 193 struct jffs2_eraseblock *jeb); 194 void 195 __jffs2_dbg_prewrite_paranoia_check(struct jffs2_sb_info *c, 196 uint32_t ofs, int len); 197 198 /* "Dump" functions */ 199 void 200 __jffs2_dbg_dump_jeb(struct jffs2_sb_info *c, struct jffs2_eraseblock *jeb); 201 void 202 __jffs2_dbg_dump_jeb_nolock(struct jffs2_eraseblock *jeb); 203 void 204 __jffs2_dbg_dump_block_lists(struct jffs2_sb_info *c); 205 void 206 __jffs2_dbg_dump_block_lists_nolock(struct jffs2_sb_info *c); 207 void 208 __jffs2_dbg_dump_node_refs(struct jffs2_sb_info *c, 209 struct jffs2_eraseblock *jeb); 210 void 211 __jffs2_dbg_dump_node_refs_nolock(struct jffs2_sb_info *c, 212 struct jffs2_eraseblock *jeb); 213 void 214 __jffs2_dbg_dump_fragtree(struct jffs2_inode_info *f); 215 void 216 __jffs2_dbg_dump_fragtree_nolock(struct jffs2_inode_info *f); 217 void 218 __jffs2_dbg_dump_buffer(unsigned char *buf, int len, uint32_t offs); 219 void 220 __jffs2_dbg_dump_node(struct jffs2_sb_info *c, uint32_t ofs); 221 222 #ifdef JFFS2_DBG_PARANOIA_CHECKS 223 #define jffs2_dbg_fragtree_paranoia_check(f) \ 224 __jffs2_dbg_fragtree_paranoia_check(f) 225 #define jffs2_dbg_fragtree_paranoia_check_nolock(f) \ 226 __jffs2_dbg_fragtree_paranoia_check_nolock(f) 227 #define jffs2_dbg_acct_paranoia_check(c, jeb) \ 228 __jffs2_dbg_acct_paranoia_check(c,jeb) 229 #define jffs2_dbg_acct_paranoia_check_nolock(c, jeb) \ 230 __jffs2_dbg_acct_paranoia_check_nolock(c,jeb) 231 #define jffs2_dbg_prewrite_paranoia_check(c, ofs, len) \ 232 __jffs2_dbg_prewrite_paranoia_check(c, ofs, len) 233 #else 234 #define jffs2_dbg_fragtree_paranoia_check(f) 235 #define jffs2_dbg_fragtree_paranoia_check_nolock(f) 236 #define jffs2_dbg_acct_paranoia_check(c, jeb) 237 #define jffs2_dbg_acct_paranoia_check_nolock(c, jeb) 238 #define jffs2_dbg_prewrite_paranoia_check(c, ofs, len) 239 #endif /* !JFFS2_PARANOIA_CHECKS */ 240 241 #ifdef JFFS2_DBG_DUMPS 242 #define jffs2_dbg_dump_jeb(c, jeb) \ 243 __jffs2_dbg_dump_jeb(c, jeb); 244 #define jffs2_dbg_dump_jeb_nolock(jeb) \ 245 __jffs2_dbg_dump_jeb_nolock(jeb); 246 #define jffs2_dbg_dump_block_lists(c) \ 247 __jffs2_dbg_dump_block_lists(c) 248 #define jffs2_dbg_dump_block_lists_nolock(c) \ 249 __jffs2_dbg_dump_block_lists_nolock(c) 250 #define jffs2_dbg_dump_fragtree(f) \ 251 __jffs2_dbg_dump_fragtree(f); 252 #define jffs2_dbg_dump_fragtree_nolock(f) \ 253 __jffs2_dbg_dump_fragtree_nolock(f); 254 #define jffs2_dbg_dump_buffer(buf, len, offs) \ 255 __jffs2_dbg_dump_buffer(*buf, len, offs); 256 #define jffs2_dbg_dump_node(c, ofs) \ 257 __jffs2_dbg_dump_node(c, ofs); 258 #else 259 #define jffs2_dbg_dump_jeb(c, jeb) 260 #define jffs2_dbg_dump_jeb_nolock(jeb) 261 #define jffs2_dbg_dump_block_lists(c) 262 #define jffs2_dbg_dump_block_lists_nolock(c) 263 #define jffs2_dbg_dump_fragtree(f) 264 #define jffs2_dbg_dump_fragtree_nolock(f) 265 #define jffs2_dbg_dump_buffer(buf, len, offs) 266 #define jffs2_dbg_dump_node(c, ofs) 267 #endif /* !JFFS2_DBG_DUMPS */ 268 269 #ifdef JFFS2_DBG_SANITY_CHECKS 270 #define jffs2_dbg_acct_sanity_check(c, jeb) \ 271 __jffs2_dbg_acct_sanity_check(c, jeb) 272 #define jffs2_dbg_acct_sanity_check_nolock(c, jeb) \ 273 __jffs2_dbg_acct_sanity_check_nolock(c, jeb) 274 #else 275 #define jffs2_dbg_acct_sanity_check(c, jeb) 276 #define jffs2_dbg_acct_sanity_check_nolock(c, jeb) 277 #endif /* !JFFS2_DBG_SANITY_CHECKS */ 278 279 #endif /* _JFFS2_DEBUG_H_ */ 280