Tom Rini | 10e4779 | 2018-05-06 17:58:06 -0400 | [diff] [blame] | 1 | /* SPDX-License-Identifier: GPL-2.0+ */ |
Simon Glass | 9054a02 | 2017-12-04 13:48:20 -0700 | [diff] [blame] | 2 | /* |
| 3 | * Logging support |
| 4 | * |
| 5 | * Copyright (c) 2017 Google, Inc |
| 6 | * Written by Simon Glass <sjg@chromium.org> |
Simon Glass | 9054a02 | 2017-12-04 13:48:20 -0700 | [diff] [blame] | 7 | */ |
| 8 | |
| 9 | #ifndef __LOG_H |
| 10 | #define __LOG_H |
| 11 | |
Simon Glass | 274e0b0 | 2020-05-10 11:39:56 -0600 | [diff] [blame] | 12 | #include <stdio.h> |
Simon Glass | ed38aef | 2020-05-10 11:40:03 -0600 | [diff] [blame] | 13 | #include <linker_lists.h> |
Simon Glass | d95645d | 2017-12-04 13:48:24 -0700 | [diff] [blame] | 14 | #include <dm/uclass-id.h> |
Heinrich Schuchardt | 2d349c7 | 2020-06-17 21:52:44 +0200 | [diff] [blame] | 15 | #include <linux/bitops.h> |
Simon Glass | d95645d | 2017-12-04 13:48:24 -0700 | [diff] [blame] | 16 | #include <linux/list.h> |
| 17 | |
Simon Glass | ed38aef | 2020-05-10 11:40:03 -0600 | [diff] [blame] | 18 | struct cmd_tbl; |
| 19 | |
Sean Anderson | ce02d8f | 2020-10-27 19:55:40 -0400 | [diff] [blame] | 20 | /** |
| 21 | * enum log_level_t - Log levels supported, ranging from most to least important |
| 22 | */ |
Simon Glass | d95645d | 2017-12-04 13:48:24 -0700 | [diff] [blame] | 23 | enum log_level_t { |
Sean Anderson | ce02d8f | 2020-10-27 19:55:40 -0400 | [diff] [blame] | 24 | /** @LOGL_EMERG: U-Boot is unstable */ |
| 25 | LOGL_EMERG = 0, |
| 26 | /** @LOGL_ALERT: Action must be taken immediately */ |
| 27 | LOGL_ALERT, |
| 28 | /** @LOGL_CRIT: Critical conditions */ |
| 29 | LOGL_CRIT, |
| 30 | /** @LOGL_ERR: Error that prevents something from working */ |
| 31 | LOGL_ERR, |
Heinrich Schuchardt | ec506d9 | 2020-11-30 09:04:48 +0100 | [diff] [blame] | 32 | /** @LOGL_WARNING: Warning may prevent optimal operation */ |
Sean Anderson | ce02d8f | 2020-10-27 19:55:40 -0400 | [diff] [blame] | 33 | LOGL_WARNING, |
| 34 | /** @LOGL_NOTICE: Normal but significant condition, printf() */ |
| 35 | LOGL_NOTICE, |
| 36 | /** @LOGL_INFO: General information message */ |
| 37 | LOGL_INFO, |
| 38 | /** @LOGL_DEBUG: Basic debug-level message */ |
| 39 | LOGL_DEBUG, |
| 40 | /** @LOGL_DEBUG_CONTENT: Debug message showing full message content */ |
| 41 | LOGL_DEBUG_CONTENT, |
| 42 | /** @LOGL_DEBUG_IO: Debug message showing hardware I/O access */ |
| 43 | LOGL_DEBUG_IO, |
Simon Glass | d95645d | 2017-12-04 13:48:24 -0700 | [diff] [blame] | 44 | |
Sean Anderson | ce02d8f | 2020-10-27 19:55:40 -0400 | [diff] [blame] | 45 | /** @LOGL_COUNT: Total number of valid log levels */ |
Simon Glass | d95645d | 2017-12-04 13:48:24 -0700 | [diff] [blame] | 46 | LOGL_COUNT, |
Sean Anderson | ce02d8f | 2020-10-27 19:55:40 -0400 | [diff] [blame] | 47 | /** @LOGL_NONE: Used to indicate that there is no valid log level */ |
Simon Glass | 4f0fdb7 | 2017-12-28 13:14:16 -0700 | [diff] [blame] | 48 | LOGL_NONE, |
| 49 | |
Sean Anderson | ce02d8f | 2020-10-27 19:55:40 -0400 | [diff] [blame] | 50 | /** @LOGL_LEVEL_MASK: Mask for valid log levels */ |
| 51 | LOGL_LEVEL_MASK = 0xf, |
| 52 | /** @LOGL_FORCE_DEBUG: Mask to force output due to LOG_DEBUG */ |
| 53 | LOGL_FORCE_DEBUG = 0x10, |
Simon Glass | 9c83cac | 2020-09-12 11:13:34 -0600 | [diff] [blame] | 54 | |
Sean Anderson | ce02d8f | 2020-10-27 19:55:40 -0400 | [diff] [blame] | 55 | /** @LOGL_FIRST: The first, most-important log level */ |
Simon Glass | d95645d | 2017-12-04 13:48:24 -0700 | [diff] [blame] | 56 | LOGL_FIRST = LOGL_EMERG, |
Sean Anderson | ce02d8f | 2020-10-27 19:55:40 -0400 | [diff] [blame] | 57 | /** @LOGL_MAX: The last, least-important log level */ |
Simon Glass | 4f0fdb7 | 2017-12-28 13:14:16 -0700 | [diff] [blame] | 58 | LOGL_MAX = LOGL_DEBUG_IO, |
Sean Anderson | ce02d8f | 2020-10-27 19:55:40 -0400 | [diff] [blame] | 59 | /** @LOGL_CONT: Use same log level as in previous call */ |
| 60 | LOGL_CONT = -1, |
Simon Glass | d95645d | 2017-12-04 13:48:24 -0700 | [diff] [blame] | 61 | }; |
| 62 | |
| 63 | /** |
Sean Anderson | ce02d8f | 2020-10-27 19:55:40 -0400 | [diff] [blame] | 64 | * enum log_category_t - Log categories supported. |
| 65 | * |
| 66 | * Log categories between %LOGC_FIRST and %LOGC_NONE correspond to uclasses |
| 67 | * (i.e. &enum uclass_id), but there are also some more generic categories. |
Simon Glass | 31120e1 | 2020-09-27 18:46:13 -0600 | [diff] [blame] | 68 | * |
| 69 | * Remember to update log_cat_name[] after adding a new category. |
Simon Glass | d95645d | 2017-12-04 13:48:24 -0700 | [diff] [blame] | 70 | */ |
| 71 | enum log_category_t { |
Sean Anderson | ce02d8f | 2020-10-27 19:55:40 -0400 | [diff] [blame] | 72 | /** @LOGC_FIRST: First log category */ |
Simon Glass | d95645d | 2017-12-04 13:48:24 -0700 | [diff] [blame] | 73 | LOGC_FIRST = 0, /* First part mirrors UCLASS_... */ |
| 74 | |
Sean Anderson | ce02d8f | 2020-10-27 19:55:40 -0400 | [diff] [blame] | 75 | /** @LOGC_NONE: Default log category */ |
Simon Glass | d5063fd | 2018-10-01 12:22:32 -0600 | [diff] [blame] | 76 | LOGC_NONE = UCLASS_COUNT, /* First number is after all uclasses */ |
Sean Anderson | ce02d8f | 2020-10-27 19:55:40 -0400 | [diff] [blame] | 77 | /** @LOGC_ARCH: Related to arch-specific code */ |
| 78 | LOGC_ARCH, |
| 79 | /** @LOGC_BOARD: Related to board-specific code */ |
| 80 | LOGC_BOARD, |
| 81 | /** @LOGC_CORE: Related to core features (non-driver-model) */ |
| 82 | LOGC_CORE, |
| 83 | /** @LOGC_DM: Core driver-model */ |
| 84 | LOGC_DM, |
| 85 | /** @LOGC_DT: Device-tree */ |
| 86 | LOGC_DT, |
| 87 | /** @LOGC_EFI: EFI implementation */ |
| 88 | LOGC_EFI, |
| 89 | /** @LOGC_ALLOC: Memory allocation */ |
| 90 | LOGC_ALLOC, |
| 91 | /** @LOGC_SANDBOX: Related to the sandbox board */ |
| 92 | LOGC_SANDBOX, |
| 93 | /** @LOGC_BLOBLIST: Bloblist */ |
| 94 | LOGC_BLOBLIST, |
| 95 | /** @LOGC_DEVRES: Device resources (``devres_...`` functions) */ |
| 96 | LOGC_DEVRES, |
| 97 | /** @LOGC_ACPI: Advanced Configuration and Power Interface (ACPI) */ |
Simon Glass | 9fb9e9b | 2020-04-09 10:27:38 -0600 | [diff] [blame] | 98 | LOGC_ACPI, |
Simon Glass | 372e227 | 2020-11-29 17:07:04 -0700 | [diff] [blame] | 99 | /** @LOGC_BOOT: Related to boot process / boot image processing */ |
| 100 | LOGC_BOOT, |
Simon Glass | aa4bce9 | 2022-03-04 08:43:00 -0700 | [diff] [blame] | 101 | /** @LOGC_EVENT: Related to event and event handling */ |
| 102 | LOGC_EVENT, |
Sean Anderson | ce02d8f | 2020-10-27 19:55:40 -0400 | [diff] [blame] | 103 | /** @LOGC_COUNT: Number of log categories */ |
| 104 | LOGC_COUNT, |
| 105 | /** @LOGC_END: Sentinel value for lists of log categories */ |
| 106 | LOGC_END, |
| 107 | /** @LOGC_CONT: Use same category as in previous call */ |
| 108 | LOGC_CONT = -1, |
Simon Glass | d95645d | 2017-12-04 13:48:24 -0700 | [diff] [blame] | 109 | }; |
| 110 | |
| 111 | /* Helper to cast a uclass ID to a log category */ |
| 112 | static inline int log_uc_cat(enum uclass_id id) |
| 113 | { |
| 114 | return (enum log_category_t)id; |
| 115 | } |
| 116 | |
| 117 | /** |
| 118 | * _log() - Internal function to emit a new log record |
| 119 | * |
| 120 | * @cat: Category of log record (indicating which subsystem generated it) |
| 121 | * @level: Level of log record (indicating its severity) |
| 122 | * @file: File name of file where log record was generated |
| 123 | * @line: Line number in file where log record was generated |
| 124 | * @func: Function where log record was generated |
| 125 | * @fmt: printf() format string for log record |
| 126 | * @...: Optional parameters, according to the format string @fmt |
Sean Anderson | ce02d8f | 2020-10-27 19:55:40 -0400 | [diff] [blame] | 127 | * Return: 0 if log record was emitted, -ve on error |
Simon Glass | d95645d | 2017-12-04 13:48:24 -0700 | [diff] [blame] | 128 | */ |
| 129 | int _log(enum log_category_t cat, enum log_level_t level, const char *file, |
Simon Glass | bd92332 | 2019-01-07 16:44:19 -0700 | [diff] [blame] | 130 | int line, const char *func, const char *fmt, ...) |
| 131 | __attribute__ ((format (__printf__, 6, 7))); |
Simon Glass | d95645d | 2017-12-04 13:48:24 -0700 | [diff] [blame] | 132 | |
Simon Glass | 9ba72ef | 2019-09-25 08:56:23 -0600 | [diff] [blame] | 133 | static inline int _log_nop(enum log_category_t cat, enum log_level_t level, |
| 134 | const char *file, int line, const char *func, |
| 135 | const char *fmt, ...) |
| 136 | __attribute__ ((format (__printf__, 6, 7))); |
| 137 | |
| 138 | static inline int _log_nop(enum log_category_t cat, enum log_level_t level, |
| 139 | const char *file, int line, const char *func, |
| 140 | const char *fmt, ...) |
| 141 | { |
| 142 | return 0; |
| 143 | } |
| 144 | |
Simon Glass | 7fb9759 | 2021-05-08 07:00:06 -0600 | [diff] [blame] | 145 | /** |
| 146 | * _log_buffer - Internal function to print data buffer in hex and ascii form |
| 147 | * |
| 148 | * @cat: Category of log record (indicating which subsystem generated it) |
| 149 | * @level: Level of log record (indicating its severity) |
| 150 | * @file: File name of file where log record was generated |
| 151 | * @line: Line number in file where log record was generated |
| 152 | * @func: Function where log record was generated |
| 153 | * @addr: Starting address to display at start of line |
| 154 | * @data: pointer to data buffer |
| 155 | * @width: data value width. May be 1, 2, or 4. |
| 156 | * @count: number of values to display |
| 157 | * @linelen: Number of values to print per line; specify 0 for default length |
| 158 | */ |
| 159 | int _log_buffer(enum log_category_t cat, enum log_level_t level, |
| 160 | const char *file, int line, const char *func, ulong addr, |
| 161 | const void *data, uint width, uint count, uint linelen); |
| 162 | |
Simon Glass | d95645d | 2017-12-04 13:48:24 -0700 | [diff] [blame] | 163 | /* Define this at the top of a file to add a prefix to debug messages */ |
| 164 | #ifndef pr_fmt |
| 165 | #define pr_fmt(fmt) fmt |
| 166 | #endif |
| 167 | |
| 168 | /* Use a default category if this file does not supply one */ |
| 169 | #ifndef LOG_CATEGORY |
| 170 | #define LOG_CATEGORY LOGC_NONE |
| 171 | #endif |
| 172 | |
| 173 | /* |
| 174 | * This header may be including when CONFIG_LOG is disabled, in which case |
| 175 | * CONFIG_LOG_MAX_LEVEL is not defined. Add a check for this. |
| 176 | */ |
| 177 | #if CONFIG_IS_ENABLED(LOG) |
| 178 | #define _LOG_MAX_LEVEL CONFIG_VAL(LOG_MAX_LEVEL) |
Simon Glass | 8eaaedb | 2021-05-08 13:46:54 -0600 | [diff] [blame] | 179 | #else |
| 180 | #define _LOG_MAX_LEVEL LOGL_INFO |
| 181 | #endif |
| 182 | |
Heinrich Schuchardt | 2e396a1 | 2021-01-04 08:02:54 +0100 | [diff] [blame] | 183 | #define log_emer(_fmt...) log(LOG_CATEGORY, LOGL_EMERG, ##_fmt) |
| 184 | #define log_alert(_fmt...) log(LOG_CATEGORY, LOGL_ALERT, ##_fmt) |
| 185 | #define log_crit(_fmt...) log(LOG_CATEGORY, LOGL_CRIT, ##_fmt) |
Simon Glass | 1b69a99 | 2018-10-01 11:55:06 -0600 | [diff] [blame] | 186 | #define log_err(_fmt...) log(LOG_CATEGORY, LOGL_ERR, ##_fmt) |
| 187 | #define log_warning(_fmt...) log(LOG_CATEGORY, LOGL_WARNING, ##_fmt) |
| 188 | #define log_notice(_fmt...) log(LOG_CATEGORY, LOGL_NOTICE, ##_fmt) |
| 189 | #define log_info(_fmt...) log(LOG_CATEGORY, LOGL_INFO, ##_fmt) |
| 190 | #define log_debug(_fmt...) log(LOG_CATEGORY, LOGL_DEBUG, ##_fmt) |
| 191 | #define log_content(_fmt...) log(LOG_CATEGORY, LOGL_DEBUG_CONTENT, ##_fmt) |
| 192 | #define log_io(_fmt...) log(LOG_CATEGORY, LOGL_DEBUG_IO, ##_fmt) |
Heinrich Schuchardt | 2e396a1 | 2021-01-04 08:02:54 +0100 | [diff] [blame] | 193 | #define log_cont(_fmt...) log(LOGC_CONT, LOGL_CONT, ##_fmt) |
Simon Glass | d95645d | 2017-12-04 13:48:24 -0700 | [diff] [blame] | 194 | |
Simon Glass | e0144f2 | 2019-02-16 20:24:37 -0700 | [diff] [blame] | 195 | #ifdef LOG_DEBUG |
Simon Glass | 9c83cac | 2020-09-12 11:13:34 -0600 | [diff] [blame] | 196 | #define _LOG_DEBUG LOGL_FORCE_DEBUG |
Simon Glass | e0144f2 | 2019-02-16 20:24:37 -0700 | [diff] [blame] | 197 | #else |
| 198 | #define _LOG_DEBUG 0 |
| 199 | #endif |
Simon Glass | b56cdc0 | 2018-11-15 18:43:49 -0700 | [diff] [blame] | 200 | |
Simon Glass | 8eaaedb | 2021-05-08 13:46:54 -0600 | [diff] [blame] | 201 | #if CONFIG_IS_ENABLED(LOG) |
| 202 | |
Simon Glass | d95645d | 2017-12-04 13:48:24 -0700 | [diff] [blame] | 203 | /* Emit a log record if the level is less that the maximum */ |
| 204 | #define log(_cat, _level, _fmt, _args...) ({ \ |
| 205 | int _l = _level; \ |
Simon Glass | 8eaaedb | 2021-05-08 13:46:54 -0600 | [diff] [blame] | 206 | if (_LOG_DEBUG != 0 || _l <= _LOG_MAX_LEVEL) \ |
Simon Glass | 9c83cac | 2020-09-12 11:13:34 -0600 | [diff] [blame] | 207 | _log((enum log_category_t)(_cat), \ |
| 208 | (enum log_level_t)(_l | _LOG_DEBUG), __FILE__, \ |
| 209 | __LINE__, __func__, \ |
Simon Glass | d95645d | 2017-12-04 13:48:24 -0700 | [diff] [blame] | 210 | pr_fmt(_fmt), ##_args); \ |
| 211 | }) |
Simon Glass | 7fb9759 | 2021-05-08 07:00:06 -0600 | [diff] [blame] | 212 | |
| 213 | /* Emit a dump if the level is less that the maximum */ |
| 214 | #define log_buffer(_cat, _level, _addr, _data, _width, _count, _linelen) ({ \ |
| 215 | int _l = _level; \ |
| 216 | if (_LOG_DEBUG != 0 || _l <= _LOG_MAX_LEVEL) \ |
| 217 | _log_buffer((enum log_category_t)(_cat), \ |
| 218 | (enum log_level_t)(_l | _LOG_DEBUG), __FILE__, \ |
| 219 | __LINE__, __func__, _addr, _data, \ |
| 220 | _width, _count, _linelen); \ |
| 221 | }) |
Simon Glass | b56cdc0 | 2018-11-15 18:43:49 -0700 | [diff] [blame] | 222 | #else |
Simon Glass | 8eaaedb | 2021-05-08 13:46:54 -0600 | [diff] [blame] | 223 | |
| 224 | /* Note: _LOG_DEBUG != 0 avoids a warning with clang */ |
| 225 | #define log(_cat, _level, _fmt, _args...) ({ \ |
| 226 | int _l = _level; \ |
| 227 | if (_LOG_DEBUG != 0 || _l <= LOGL_INFO || \ |
| 228 | (_DEBUG && _l == LOGL_DEBUG)) \ |
| 229 | printf(_fmt, ##_args); \ |
| 230 | }) |
Simon Glass | 7fb9759 | 2021-05-08 07:00:06 -0600 | [diff] [blame] | 231 | |
| 232 | #define log_buffer(_cat, _level, _addr, _data, _width, _count, _linelen) ({ \ |
| 233 | int _l = _level; \ |
| 234 | if (_LOG_DEBUG != 0 || _l <= LOGL_INFO || \ |
| 235 | (_DEBUG && _l == LOGL_DEBUG)) \ |
| 236 | print_buffer(_addr, _data, _width, _count, _linelen); \ |
| 237 | }) |
Simon Glass | b56cdc0 | 2018-11-15 18:43:49 -0700 | [diff] [blame] | 238 | #endif |
Simon Glass | d95645d | 2017-12-04 13:48:24 -0700 | [diff] [blame] | 239 | |
Simon Glass | 9ba72ef | 2019-09-25 08:56:23 -0600 | [diff] [blame] | 240 | #define log_nop(_cat, _level, _fmt, _args...) ({ \ |
| 241 | int _l = _level; \ |
| 242 | _log_nop((enum log_category_t)(_cat), _l, __FILE__, __LINE__, \ |
| 243 | __func__, pr_fmt(_fmt), ##_args); \ |
| 244 | }) |
| 245 | |
Simon Glass | 9054a02 | 2017-12-04 13:48:20 -0700 | [diff] [blame] | 246 | #ifdef DEBUG |
| 247 | #define _DEBUG 1 |
| 248 | #else |
| 249 | #define _DEBUG 0 |
| 250 | #endif |
| 251 | |
| 252 | #ifdef CONFIG_SPL_BUILD |
| 253 | #define _SPL_BUILD 1 |
| 254 | #else |
| 255 | #define _SPL_BUILD 0 |
| 256 | #endif |
| 257 | |
Simon Glass | 6358031 | 2021-03-26 16:17:28 +1300 | [diff] [blame] | 258 | #if CONFIG_IS_ENABLED(LOG) |
Simon Glass | d95645d | 2017-12-04 13:48:24 -0700 | [diff] [blame] | 259 | |
Simon Glass | 6358031 | 2021-03-26 16:17:28 +1300 | [diff] [blame] | 260 | #define debug_cond(cond, fmt, args...) \ |
| 261 | ({ \ |
| 262 | if (cond) \ |
| 263 | log(LOG_CATEGORY, \ |
| 264 | (enum log_level_t)(LOGL_FORCE_DEBUG | _LOG_DEBUG), \ |
| 265 | fmt, ##args); \ |
Heinrich Schuchardt | 42b7481 | 2021-01-04 08:02:53 +0100 | [diff] [blame] | 266 | }) |
Simon Glass | d95645d | 2017-12-04 13:48:24 -0700 | [diff] [blame] | 267 | |
| 268 | #else /* _DEBUG */ |
| 269 | |
Simon Glass | 9054a02 | 2017-12-04 13:48:20 -0700 | [diff] [blame] | 270 | /* |
| 271 | * Output a debug text when condition "cond" is met. The "cond" should be |
| 272 | * computed by a preprocessor in the best case, allowing for the best |
| 273 | * optimization. |
| 274 | */ |
Heinrich Schuchardt | 42b7481 | 2021-01-04 08:02:53 +0100 | [diff] [blame] | 275 | #define debug_cond(cond, fmt, args...) \ |
| 276 | ({ \ |
| 277 | if (cond) \ |
| 278 | printf(pr_fmt(fmt), ##args); \ |
| 279 | }) |
Simon Glass | 9054a02 | 2017-12-04 13:48:20 -0700 | [diff] [blame] | 280 | |
Simon Glass | d95645d | 2017-12-04 13:48:24 -0700 | [diff] [blame] | 281 | #endif /* _DEBUG */ |
| 282 | |
Simon Glass | 9054a02 | 2017-12-04 13:48:20 -0700 | [diff] [blame] | 283 | /* Show a message if DEBUG is defined in a file */ |
| 284 | #define debug(fmt, args...) \ |
| 285 | debug_cond(_DEBUG, fmt, ##args) |
| 286 | |
| 287 | /* Show a message if not in SPL */ |
| 288 | #define warn_non_spl(fmt, args...) \ |
| 289 | debug_cond(!_SPL_BUILD, fmt, ##args) |
| 290 | |
| 291 | /* |
| 292 | * An assertion is run-time check done in debug mode only. If DEBUG is not |
| 293 | * defined then it is skipped. If DEBUG is defined and the assertion fails, |
| 294 | * then it calls panic*( which may or may not reset/halt U-Boot (see |
| 295 | * CONFIG_PANIC_HANG), It is hoped that all failing assertions are found |
| 296 | * before release, and after release it is hoped that they don't matter. But |
| 297 | * in any case these failing assertions cannot be fixed with a reset (which |
| 298 | * may just do the same assertion again). |
| 299 | */ |
| 300 | void __assert_fail(const char *assertion, const char *file, unsigned int line, |
| 301 | const char *function); |
Heinrich Schuchardt | 7c395c9 | 2019-07-27 20:21:06 +0200 | [diff] [blame] | 302 | |
| 303 | /** |
| 304 | * assert() - assert expression is true |
| 305 | * |
| 306 | * If the expression x evaluates to false and _DEBUG evaluates to true, a panic |
| 307 | * message is written and the system stalls. The value of _DEBUG is set to true |
| 308 | * if DEBUG is defined before including common.h. |
| 309 | * |
| 310 | * The expression x is always executed irrespective of the value of _DEBUG. |
| 311 | * |
| 312 | * @x: expression to test |
| 313 | */ |
Simon Glass | 9054a02 | 2017-12-04 13:48:20 -0700 | [diff] [blame] | 314 | #define assert(x) \ |
| 315 | ({ if (!(x) && _DEBUG) \ |
| 316 | __assert_fail(#x, __FILE__, __LINE__, __func__); }) |
| 317 | |
Simon Glass | e1277ff | 2019-12-29 21:19:10 -0700 | [diff] [blame] | 318 | /* |
| 319 | * This one actually gets compiled in even without DEBUG. It doesn't include the |
| 320 | * full pathname as it may be huge. Only use this when the user should be |
| 321 | * warning, similar to BUG_ON() in linux. |
| 322 | * |
Sean Anderson | ce02d8f | 2020-10-27 19:55:40 -0400 | [diff] [blame] | 323 | * Return: true if assertion succeeded (condition is true), else false |
Simon Glass | e1277ff | 2019-12-29 21:19:10 -0700 | [diff] [blame] | 324 | */ |
| 325 | #define assert_noisy(x) \ |
| 326 | ({ bool _val = (x); \ |
| 327 | if (!_val) \ |
| 328 | __assert_fail(#x, "?", __LINE__, __func__); \ |
| 329 | _val; \ |
| 330 | }) |
| 331 | |
Simon Glass | b56cdc0 | 2018-11-15 18:43:49 -0700 | [diff] [blame] | 332 | #if CONFIG_IS_ENABLED(LOG) && defined(CONFIG_LOG_ERROR_RETURN) |
| 333 | /* |
| 334 | * Log an error return value, possibly with a message. Usage: |
| 335 | * |
| 336 | * return log_ret(fred_call()); |
| 337 | * |
| 338 | * or: |
| 339 | * |
| 340 | * return log_msg_ret("fred failed", fred_call()); |
| 341 | */ |
Simon Glass | aa1d73b | 2017-12-28 13:14:23 -0700 | [diff] [blame] | 342 | #define log_ret(_ret) ({ \ |
| 343 | int __ret = (_ret); \ |
| 344 | if (__ret < 0) \ |
| 345 | log(LOG_CATEGORY, LOGL_ERR, "returning err=%d\n", __ret); \ |
| 346 | __ret; \ |
| 347 | }) |
Simon Glass | bfad6ed | 2018-06-11 13:07:14 -0600 | [diff] [blame] | 348 | #define log_msg_ret(_msg, _ret) ({ \ |
| 349 | int __ret = (_ret); \ |
| 350 | if (__ret < 0) \ |
| 351 | log(LOG_CATEGORY, LOGL_ERR, "%s: returning err=%d\n", _msg, \ |
| 352 | __ret); \ |
| 353 | __ret; \ |
| 354 | }) |
Simon Glass | b2faacc | 2021-01-20 20:10:54 -0700 | [diff] [blame] | 355 | |
| 356 | /* |
| 357 | * Similar to the above, but any non-zero value is consider an error, not just |
| 358 | * values less than 0. |
| 359 | */ |
| 360 | #define log_retz(_ret) ({ \ |
| 361 | int __ret = (_ret); \ |
| 362 | if (__ret) \ |
| 363 | log(LOG_CATEGORY, LOGL_ERR, "returning err=%d\n", __ret); \ |
| 364 | __ret; \ |
| 365 | }) |
| 366 | #define log_msg_retz(_msg, _ret) ({ \ |
| 367 | int __ret = (_ret); \ |
| 368 | if (__ret) \ |
| 369 | log(LOG_CATEGORY, LOGL_ERR, "%s: returning err=%d\n", _msg, \ |
| 370 | __ret); \ |
| 371 | __ret; \ |
| 372 | }) |
Simon Glass | aa1d73b | 2017-12-28 13:14:23 -0700 | [diff] [blame] | 373 | #else |
Simon Glass | b56cdc0 | 2018-11-15 18:43:49 -0700 | [diff] [blame] | 374 | /* Non-logging versions of the above which just return the error code */ |
Simon Glass | aa1d73b | 2017-12-28 13:14:23 -0700 | [diff] [blame] | 375 | #define log_ret(_ret) (_ret) |
Simon Glass | b56cdc0 | 2018-11-15 18:43:49 -0700 | [diff] [blame] | 376 | #define log_msg_ret(_msg, _ret) ((void)(_msg), _ret) |
Simon Glass | b2faacc | 2021-01-20 20:10:54 -0700 | [diff] [blame] | 377 | #define log_retz(_ret) (_ret) |
| 378 | #define log_msg_retz(_msg, _ret) ((void)(_msg), _ret) |
Simon Glass | aa1d73b | 2017-12-28 13:14:23 -0700 | [diff] [blame] | 379 | #endif |
| 380 | |
Simon Glass | f080343 | 2021-01-20 20:10:52 -0700 | [diff] [blame] | 381 | /** * enum log_rec_flags - Flags for a log record */ |
| 382 | enum log_rec_flags { |
| 383 | /** @LOGRECF_FORCE_DEBUG: Force output of debug record */ |
| 384 | LOGRECF_FORCE_DEBUG = BIT(0), |
Simon Glass | 5fc47e3 | 2021-01-20 20:10:53 -0700 | [diff] [blame] | 385 | /** @LOGRECF_CONT: Continuation of previous log record */ |
| 386 | LOGRECF_CONT = BIT(1), |
Simon Glass | f080343 | 2021-01-20 20:10:52 -0700 | [diff] [blame] | 387 | }; |
| 388 | |
Simon Glass | d95645d | 2017-12-04 13:48:24 -0700 | [diff] [blame] | 389 | /** |
| 390 | * struct log_rec - a single log record |
| 391 | * |
| 392 | * Holds information about a single record in the log |
| 393 | * |
| 394 | * Members marked as 'not allocated' are stored as pointers and the caller is |
| 395 | * responsible for making sure that the data pointed to is not overwritten. |
Heinrich Schuchardt | ec506d9 | 2020-11-30 09:04:48 +0100 | [diff] [blame] | 396 | * Members marked as 'allocated' are allocated (e.g. via strdup()) by the log |
Simon Glass | d95645d | 2017-12-04 13:48:24 -0700 | [diff] [blame] | 397 | * system. |
| 398 | * |
Simon Glass | 9c83cac | 2020-09-12 11:13:34 -0600 | [diff] [blame] | 399 | * TODO(sjg@chromium.org): Compress this struct down a bit to reduce space, e.g. |
| 400 | * a single u32 for cat, level, line and force_debug |
| 401 | * |
Simon Glass | d95645d | 2017-12-04 13:48:24 -0700 | [diff] [blame] | 402 | * @cat: Category, representing a uclass or part of U-Boot |
| 403 | * @level: Severity level, less severe is higher |
Simon Glass | d95645d | 2017-12-04 13:48:24 -0700 | [diff] [blame] | 404 | * @line: Line number where the log record was generated |
Simon Glass | f080343 | 2021-01-20 20:10:52 -0700 | [diff] [blame] | 405 | * @flags: Flags for log record (enum log_rec_flags) |
| 406 | * @file: Name of file where the log record was generated (not allocated) |
Simon Glass | d95645d | 2017-12-04 13:48:24 -0700 | [diff] [blame] | 407 | * @func: Function where the log record was generated (not allocated) |
| 408 | * @msg: Log message (allocated) |
| 409 | */ |
| 410 | struct log_rec { |
| 411 | enum log_category_t cat; |
| 412 | enum log_level_t level; |
Simon Glass | f080343 | 2021-01-20 20:10:52 -0700 | [diff] [blame] | 413 | u16 line; |
| 414 | u8 flags; |
Simon Glass | d95645d | 2017-12-04 13:48:24 -0700 | [diff] [blame] | 415 | const char *file; |
Simon Glass | d95645d | 2017-12-04 13:48:24 -0700 | [diff] [blame] | 416 | const char *func; |
| 417 | const char *msg; |
| 418 | }; |
| 419 | |
| 420 | struct log_device; |
| 421 | |
Simon Glass | 885cf5f | 2020-09-12 12:28:47 -0600 | [diff] [blame] | 422 | enum log_device_flags { |
| 423 | LOGDF_ENABLE = BIT(0), /* Device is enabled */ |
| 424 | }; |
| 425 | |
Simon Glass | d95645d | 2017-12-04 13:48:24 -0700 | [diff] [blame] | 426 | /** |
| 427 | * struct log_driver - a driver which accepts and processes log records |
| 428 | * |
| 429 | * @name: Name of driver |
Simon Glass | 885cf5f | 2020-09-12 12:28:47 -0600 | [diff] [blame] | 430 | * @emit: Method to call to emit a log record via this device |
| 431 | * @flags: Initial value for flags (use LOGDF_ENABLE to enable on start-up) |
Simon Glass | d95645d | 2017-12-04 13:48:24 -0700 | [diff] [blame] | 432 | */ |
| 433 | struct log_driver { |
| 434 | const char *name; |
Sean Anderson | ce02d8f | 2020-10-27 19:55:40 -0400 | [diff] [blame] | 435 | |
Simon Glass | d95645d | 2017-12-04 13:48:24 -0700 | [diff] [blame] | 436 | /** |
Sean Anderson | ce02d8f | 2020-10-27 19:55:40 -0400 | [diff] [blame] | 437 | * @emit: emit a log record |
Simon Glass | d95645d | 2017-12-04 13:48:24 -0700 | [diff] [blame] | 438 | * |
| 439 | * Called by the log system to pass a log record to a particular driver |
| 440 | * for processing. The filter is checked before calling this function. |
| 441 | */ |
| 442 | int (*emit)(struct log_device *ldev, struct log_rec *rec); |
Simon Glass | 885cf5f | 2020-09-12 12:28:47 -0600 | [diff] [blame] | 443 | unsigned short flags; |
Simon Glass | d95645d | 2017-12-04 13:48:24 -0700 | [diff] [blame] | 444 | }; |
| 445 | |
| 446 | /** |
| 447 | * struct log_device - an instance of a log driver |
| 448 | * |
| 449 | * Since drivers are set up at build-time we need to have a separate device for |
| 450 | * the run-time aspects of drivers (currently just a list of filters to apply |
| 451 | * to records send to this device). |
| 452 | * |
Heinrich Schuchardt | ec506d9 | 2020-11-30 09:04:48 +0100 | [diff] [blame] | 453 | * @next_filter_num: Sequence number of next filter filter added (0=no filters |
Simon Glass | d95645d | 2017-12-04 13:48:24 -0700 | [diff] [blame] | 454 | * yet). This increments with each new filter on the device, but never |
| 455 | * decrements |
Simon Glass | 885cf5f | 2020-09-12 12:28:47 -0600 | [diff] [blame] | 456 | * @flags: Flags for this filter (enum log_device_flags) |
Simon Glass | d95645d | 2017-12-04 13:48:24 -0700 | [diff] [blame] | 457 | * @drv: Pointer to driver for this device |
| 458 | * @filter_head: List of filters for this device |
| 459 | * @sibling_node: Next device in the list of all devices |
| 460 | */ |
| 461 | struct log_device { |
Simon Glass | 885cf5f | 2020-09-12 12:28:47 -0600 | [diff] [blame] | 462 | unsigned short next_filter_num; |
| 463 | unsigned short flags; |
Simon Glass | d95645d | 2017-12-04 13:48:24 -0700 | [diff] [blame] | 464 | struct log_driver *drv; |
| 465 | struct list_head filter_head; |
| 466 | struct list_head sibling_node; |
| 467 | }; |
| 468 | |
| 469 | enum { |
| 470 | LOGF_MAX_CATEGORIES = 5, /* maximum categories per filter */ |
| 471 | }; |
| 472 | |
Sean Anderson | d503212 | 2020-10-27 19:55:26 -0400 | [diff] [blame] | 473 | /** |
| 474 | * enum log_filter_flags - Flags which modify a filter |
| 475 | */ |
Simon Glass | d95645d | 2017-12-04 13:48:24 -0700 | [diff] [blame] | 476 | enum log_filter_flags { |
Sean Anderson | d503212 | 2020-10-27 19:55:26 -0400 | [diff] [blame] | 477 | /** @LOGFF_HAS_CAT: Filter has a category list */ |
| 478 | LOGFF_HAS_CAT = 1 << 0, |
| 479 | /** @LOGFF_DENY: Filter denies matching messages */ |
| 480 | LOGFF_DENY = 1 << 1, |
Sean Anderson | 34dc804 | 2020-10-27 19:55:30 -0400 | [diff] [blame] | 481 | /** @LOGFF_LEVEL_MIN: Filter's level is a minimum, not a maximum */ |
| 482 | LOGFF_LEVEL_MIN = 1 << 2, |
Simon Glass | d95645d | 2017-12-04 13:48:24 -0700 | [diff] [blame] | 483 | }; |
| 484 | |
| 485 | /** |
Heinrich Schuchardt | ec506d9 | 2020-11-30 09:04:48 +0100 | [diff] [blame] | 486 | * struct log_filter - criteria to filter out log messages |
Simon Glass | d95645d | 2017-12-04 13:48:24 -0700 | [diff] [blame] | 487 | * |
Sean Anderson | d503212 | 2020-10-27 19:55:26 -0400 | [diff] [blame] | 488 | * If a message matches all criteria, then it is allowed. If LOGFF_DENY is set, |
| 489 | * then it is denied instead. |
| 490 | * |
Simon Glass | d95645d | 2017-12-04 13:48:24 -0700 | [diff] [blame] | 491 | * @filter_num: Sequence number of this filter. This is returned when adding a |
| 492 | * new filter, and must be provided when removing a previously added |
| 493 | * filter. |
Sean Anderson | ce02d8f | 2020-10-27 19:55:40 -0400 | [diff] [blame] | 494 | * @flags: Flags for this filter (``LOGFF_...``) |
Sean Anderson | e1eb6ca | 2020-10-27 19:55:21 -0400 | [diff] [blame] | 495 | * @cat_list: List of categories to allow (terminated by %LOGC_END). If empty |
Sean Anderson | ce02d8f | 2020-10-27 19:55:40 -0400 | [diff] [blame] | 496 | * then all categories are permitted. Up to %LOGF_MAX_CATEGORIES entries |
Simon Glass | d95645d | 2017-12-04 13:48:24 -0700 | [diff] [blame] | 497 | * can be provided |
Sean Anderson | ce02d8f | 2020-10-27 19:55:40 -0400 | [diff] [blame] | 498 | * @level: Maximum (or minimum, if %LOGFF_MIN_LEVEL) log level to allow |
Simon Glass | d95645d | 2017-12-04 13:48:24 -0700 | [diff] [blame] | 499 | * @file_list: List of files to allow, separated by comma. If NULL then all |
| 500 | * files are permitted |
| 501 | * @sibling_node: Next filter in the list of filters for this log device |
| 502 | */ |
| 503 | struct log_filter { |
| 504 | int filter_num; |
| 505 | int flags; |
| 506 | enum log_category_t cat_list[LOGF_MAX_CATEGORIES]; |
Sean Anderson | 34dc804 | 2020-10-27 19:55:30 -0400 | [diff] [blame] | 507 | enum log_level_t level; |
Simon Glass | d95645d | 2017-12-04 13:48:24 -0700 | [diff] [blame] | 508 | const char *file_list; |
| 509 | struct list_head sibling_node; |
| 510 | }; |
| 511 | |
| 512 | #define LOG_DRIVER(_name) \ |
| 513 | ll_entry_declare(struct log_driver, _name, log_driver) |
| 514 | |
Simon Glass | 133350a | 2020-09-12 12:28:49 -0600 | [diff] [blame] | 515 | /* Get a pointer to a given driver */ |
| 516 | #define LOG_GET_DRIVER(__name) \ |
| 517 | ll_entry_get(struct log_driver, __name, log_driver) |
| 518 | |
Simon Glass | 4f0fdb7 | 2017-12-28 13:14:16 -0700 | [diff] [blame] | 519 | /** |
| 520 | * log_get_cat_name() - Get the name of a category |
| 521 | * |
| 522 | * @cat: Category to look up |
Sean Anderson | ce02d8f | 2020-10-27 19:55:40 -0400 | [diff] [blame] | 523 | * Return: category name (which may be a uclass driver name) if found, or |
Sean Anderson | cd6f8ab | 2020-10-27 19:55:34 -0400 | [diff] [blame] | 524 | * "<invalid>" if invalid, or "<missing>" if not found. All error |
| 525 | * responses begin with '<'. |
Simon Glass | 4f0fdb7 | 2017-12-28 13:14:16 -0700 | [diff] [blame] | 526 | */ |
| 527 | const char *log_get_cat_name(enum log_category_t cat); |
| 528 | |
| 529 | /** |
| 530 | * log_get_cat_by_name() - Look up a category by name |
| 531 | * |
| 532 | * @name: Name to look up |
Sean Anderson | ce02d8f | 2020-10-27 19:55:40 -0400 | [diff] [blame] | 533 | * Return: Category, or %LOGC_NONE if not found |
Simon Glass | 4f0fdb7 | 2017-12-28 13:14:16 -0700 | [diff] [blame] | 534 | */ |
| 535 | enum log_category_t log_get_cat_by_name(const char *name); |
| 536 | |
| 537 | /** |
| 538 | * log_get_level_name() - Get the name of a log level |
| 539 | * |
| 540 | * @level: Log level to look up |
Sean Anderson | ce02d8f | 2020-10-27 19:55:40 -0400 | [diff] [blame] | 541 | * Return: Log level name (in ALL CAPS) |
Simon Glass | 4f0fdb7 | 2017-12-28 13:14:16 -0700 | [diff] [blame] | 542 | */ |
| 543 | const char *log_get_level_name(enum log_level_t level); |
| 544 | |
| 545 | /** |
| 546 | * log_get_level_by_name() - Look up a log level by name |
| 547 | * |
| 548 | * @name: Name to look up |
Sean Anderson | ce02d8f | 2020-10-27 19:55:40 -0400 | [diff] [blame] | 549 | * Return: Log level, or %LOGL_NONE if not found |
Simon Glass | 4f0fdb7 | 2017-12-28 13:14:16 -0700 | [diff] [blame] | 550 | */ |
| 551 | enum log_level_t log_get_level_by_name(const char *name); |
| 552 | |
Sean Anderson | cc4960d | 2020-10-27 19:55:24 -0400 | [diff] [blame] | 553 | /** |
| 554 | * log_device_find_by_name() - Look up a log device by its driver's name |
| 555 | * |
| 556 | * @drv_name: Name of the driver |
Sean Anderson | ce02d8f | 2020-10-27 19:55:40 -0400 | [diff] [blame] | 557 | * Return: the log device, or %NULL if not found |
Sean Anderson | cc4960d | 2020-10-27 19:55:24 -0400 | [diff] [blame] | 558 | */ |
| 559 | struct log_device *log_device_find_by_name(const char *drv_name); |
| 560 | |
| 561 | /** |
| 562 | * log_has_cat() - check if a log category exists within a list |
| 563 | * |
| 564 | * @cat_list: List of categories to check, at most %LOGF_MAX_CATEGORIES entries |
| 565 | * long, terminated by %LC_END if fewer |
| 566 | * @cat: Category to search for |
| 567 | * |
| 568 | * Return: ``true`` if @cat is in @cat_list, else ``false`` |
| 569 | */ |
| 570 | bool log_has_cat(enum log_category_t cat_list[], enum log_category_t cat); |
| 571 | |
| 572 | /** |
| 573 | * log_has_file() - check if a file is with a list |
| 574 | * |
| 575 | * @file_list: List of files to check, separated by comma |
| 576 | * @file: File to check for. This string is matched against the end of each |
| 577 | * file in the list, i.e. ignoring any preceding path. The list is |
| 578 | * intended to consist of relative pathnames, e.g. common/main.c,cmd/log.c |
| 579 | * |
| 580 | * Return: ``true`` if @file is in @file_list, else ``false`` |
| 581 | */ |
| 582 | bool log_has_file(const char *file_list, const char *file); |
| 583 | |
Simon Glass | 1fe9301 | 2017-12-28 13:14:17 -0700 | [diff] [blame] | 584 | /* Log format flags (bit numbers) for gd->log_fmt. See log_fmt_chars */ |
| 585 | enum log_fmt { |
| 586 | LOGF_CAT = 0, |
| 587 | LOGF_LEVEL, |
| 588 | LOGF_FILE, |
| 589 | LOGF_LINE, |
| 590 | LOGF_FUNC, |
| 591 | LOGF_MSG, |
| 592 | |
| 593 | LOGF_COUNT, |
Simon Glass | 1fe9301 | 2017-12-28 13:14:17 -0700 | [diff] [blame] | 594 | LOGF_ALL = 0x3f, |
| 595 | }; |
| 596 | |
Simon Glass | 14c8a06 | 2017-12-04 13:48:27 -0700 | [diff] [blame] | 597 | /* Handle the 'log test' command */ |
Simon Glass | ed38aef | 2020-05-10 11:40:03 -0600 | [diff] [blame] | 598 | int do_log_test(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[]); |
Simon Glass | 14c8a06 | 2017-12-04 13:48:27 -0700 | [diff] [blame] | 599 | |
Simon Glass | d95645d | 2017-12-04 13:48:24 -0700 | [diff] [blame] | 600 | /** |
Sean Anderson | 8c41018 | 2020-10-27 19:55:25 -0400 | [diff] [blame] | 601 | * log_add_filter_flags() - Add a new filter to a log device, specifying flags |
| 602 | * |
| 603 | * @drv_name: Driver name to add the filter to (since each driver only has a |
| 604 | * single device) |
Sean Anderson | ce02d8f | 2020-10-27 19:55:40 -0400 | [diff] [blame] | 605 | * @flags: Flags for this filter (``LOGFF_...``) |
Sean Anderson | 8c41018 | 2020-10-27 19:55:25 -0400 | [diff] [blame] | 606 | * @cat_list: List of categories to allow (terminated by %LOGC_END). If empty |
Sean Anderson | ce02d8f | 2020-10-27 19:55:40 -0400 | [diff] [blame] | 607 | * then all categories are permitted. Up to %LOGF_MAX_CATEGORIES entries |
Sean Anderson | 8c41018 | 2020-10-27 19:55:25 -0400 | [diff] [blame] | 608 | * can be provided |
Sean Anderson | ce02d8f | 2020-10-27 19:55:40 -0400 | [diff] [blame] | 609 | * @level: Maximum (or minimum, if %LOGFF_LEVEL_MIN) log level to allow |
Sean Anderson | 8c41018 | 2020-10-27 19:55:25 -0400 | [diff] [blame] | 610 | * @file_list: List of files to allow, separated by comma. If NULL then all |
| 611 | * files are permitted |
Sean Anderson | ce02d8f | 2020-10-27 19:55:40 -0400 | [diff] [blame] | 612 | * Return: |
| 613 | * the sequence number of the new filter (>=0) if the filter was added, or a |
| 614 | * -ve value on error |
Sean Anderson | 8c41018 | 2020-10-27 19:55:25 -0400 | [diff] [blame] | 615 | */ |
| 616 | int log_add_filter_flags(const char *drv_name, enum log_category_t cat_list[], |
Sean Anderson | 34dc804 | 2020-10-27 19:55:30 -0400 | [diff] [blame] | 617 | enum log_level_t level, const char *file_list, |
Sean Anderson | 8c41018 | 2020-10-27 19:55:25 -0400 | [diff] [blame] | 618 | int flags); |
| 619 | |
| 620 | /** |
Simon Glass | d95645d | 2017-12-04 13:48:24 -0700 | [diff] [blame] | 621 | * log_add_filter() - Add a new filter to a log device |
| 622 | * |
| 623 | * @drv_name: Driver name to add the filter to (since each driver only has a |
| 624 | * single device) |
Sean Anderson | e1eb6ca | 2020-10-27 19:55:21 -0400 | [diff] [blame] | 625 | * @cat_list: List of categories to allow (terminated by %LOGC_END). If empty |
Sean Anderson | ce02d8f | 2020-10-27 19:55:40 -0400 | [diff] [blame] | 626 | * then all categories are permitted. Up to %LOGF_MAX_CATEGORIES entries |
Simon Glass | d95645d | 2017-12-04 13:48:24 -0700 | [diff] [blame] | 627 | * can be provided |
| 628 | * @max_level: Maximum log level to allow |
Sean Anderson | ce02d8f | 2020-10-27 19:55:40 -0400 | [diff] [blame] | 629 | * @file_list: List of files to allow, separated by comma. If %NULL then all |
Simon Glass | d95645d | 2017-12-04 13:48:24 -0700 | [diff] [blame] | 630 | * files are permitted |
Sean Anderson | ce02d8f | 2020-10-27 19:55:40 -0400 | [diff] [blame] | 631 | * Return: |
| 632 | * the sequence number of the new filter (>=0) if the filter was added, or a |
| 633 | * -ve value on error |
Simon Glass | d95645d | 2017-12-04 13:48:24 -0700 | [diff] [blame] | 634 | */ |
Sean Anderson | 8c41018 | 2020-10-27 19:55:25 -0400 | [diff] [blame] | 635 | static inline int log_add_filter(const char *drv_name, |
| 636 | enum log_category_t cat_list[], |
| 637 | enum log_level_t max_level, |
| 638 | const char *file_list) |
| 639 | { |
| 640 | return log_add_filter_flags(drv_name, cat_list, max_level, file_list, |
| 641 | 0); |
| 642 | } |
Simon Glass | d95645d | 2017-12-04 13:48:24 -0700 | [diff] [blame] | 643 | |
| 644 | /** |
| 645 | * log_remove_filter() - Remove a filter from a log device |
| 646 | * |
| 647 | * @drv_name: Driver name to remove the filter from (since each driver only has |
| 648 | * a single device) |
| 649 | * @filter_num: Filter number to remove (as returned by log_add_filter()) |
Sean Anderson | ce02d8f | 2020-10-27 19:55:40 -0400 | [diff] [blame] | 650 | * Return: |
| 651 | * 0 if the filter was removed, -%ENOENT if either the driver or the filter |
| 652 | * number was not found |
Simon Glass | d95645d | 2017-12-04 13:48:24 -0700 | [diff] [blame] | 653 | */ |
| 654 | int log_remove_filter(const char *drv_name, int filter_num); |
| 655 | |
Simon Glass | 133350a | 2020-09-12 12:28:49 -0600 | [diff] [blame] | 656 | /** |
| 657 | * log_device_set_enable() - Enable or disable a log device |
| 658 | * |
| 659 | * Devices are referenced by their driver, so use LOG_GET_DRIVER(name) to pass |
| 660 | * the driver to this function. For example if the driver is declared with |
| 661 | * LOG_DRIVER(wibble) then pass LOG_GET_DRIVER(wibble) here. |
| 662 | * |
| 663 | * @drv: Driver of device to enable |
| 664 | * @enable: true to enable, false to disable |
Heinrich Schuchardt | 47b4c02 | 2022-01-19 18:05:50 +0100 | [diff] [blame] | 665 | * Return: 0 if OK, -ENOENT if the driver was not found |
Simon Glass | 133350a | 2020-09-12 12:28:49 -0600 | [diff] [blame] | 666 | */ |
| 667 | int log_device_set_enable(struct log_driver *drv, bool enable); |
| 668 | |
Simon Glass | d95645d | 2017-12-04 13:48:24 -0700 | [diff] [blame] | 669 | #if CONFIG_IS_ENABLED(LOG) |
| 670 | /** |
| 671 | * log_init() - Set up the log system ready for use |
| 672 | * |
Sean Anderson | ce02d8f | 2020-10-27 19:55:40 -0400 | [diff] [blame] | 673 | * Return: 0 if OK, -%ENOMEM if out of memory |
Simon Glass | d95645d | 2017-12-04 13:48:24 -0700 | [diff] [blame] | 674 | */ |
| 675 | int log_init(void); |
| 676 | #else |
| 677 | static inline int log_init(void) |
| 678 | { |
| 679 | return 0; |
| 680 | } |
| 681 | #endif |
| 682 | |
Heinrich Schuchardt | 2d349c7 | 2020-06-17 21:52:44 +0200 | [diff] [blame] | 683 | /** |
| 684 | * log_get_default_format() - get default log format |
| 685 | * |
| 686 | * The default log format is configurable via |
Sean Anderson | ce02d8f | 2020-10-27 19:55:40 -0400 | [diff] [blame] | 687 | * %CONFIG_LOGF_FILE, %CONFIG_LOGF_LINE, and %CONFIG_LOGF_FUNC. |
Heinrich Schuchardt | 2d349c7 | 2020-06-17 21:52:44 +0200 | [diff] [blame] | 688 | * |
| 689 | * Return: default log format |
| 690 | */ |
| 691 | static inline int log_get_default_format(void) |
| 692 | { |
| 693 | return BIT(LOGF_MSG) | |
| 694 | (IS_ENABLED(CONFIG_LOGF_FILE) ? BIT(LOGF_FILE) : 0) | |
| 695 | (IS_ENABLED(CONFIG_LOGF_LINE) ? BIT(LOGF_LINE) : 0) | |
| 696 | (IS_ENABLED(CONFIG_LOGF_FUNC) ? BIT(LOGF_FUNC) : 0); |
| 697 | } |
| 698 | |
Simon Glass | 9054a02 | 2017-12-04 13:48:20 -0700 | [diff] [blame] | 699 | #endif |