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Commit | Line | Data |
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968ab183 LT |
1 | #ifndef __KERNEL_PRINTK__ |
2 | #define __KERNEL_PRINTK__ | |
3 | ||
1b2c289b | 4 | #include <stdarg.h> |
162a7e75 | 5 | #include <linux/init.h> |
314ba352 | 6 | #include <linux/kern_levels.h> |
154c2670 | 7 | #include <linux/linkage.h> |
c28aa1f0 | 8 | #include <linux/cache.h> |
162a7e75 | 9 | |
968ab183 LT |
10 | extern const char linux_banner[]; |
11 | extern const char linux_proc_banner[]; | |
12 | ||
262c5e86 PM |
13 | #define PRINTK_MAX_SINGLE_HEADER_LEN 2 |
14 | ||
acc8fa41 JP |
15 | static inline int printk_get_level(const char *buffer) |
16 | { | |
04d2c8c8 | 17 | if (buffer[0] == KERN_SOH_ASCII && buffer[1]) { |
acc8fa41 JP |
18 | switch (buffer[1]) { |
19 | case '0' ... '7': | |
20 | case 'd': /* KERN_DEFAULT */ | |
4bcc595c | 21 | case 'c': /* KERN_CONT */ |
acc8fa41 JP |
22 | return buffer[1]; |
23 | } | |
24 | } | |
25 | return 0; | |
26 | } | |
27 | ||
28 | static inline const char *printk_skip_level(const char *buffer) | |
29 | { | |
0185698c PM |
30 | if (printk_get_level(buffer)) |
31 | return buffer + 2; | |
32 | ||
acc8fa41 JP |
33 | return buffer; |
34 | } | |
35 | ||
49795757 PM |
36 | static inline const char *printk_skip_headers(const char *buffer) |
37 | { | |
38 | while (printk_get_level(buffer)) | |
39 | buffer = printk_skip_level(buffer); | |
40 | ||
41 | return buffer; | |
42 | } | |
43 | ||
d43ff430 TH |
44 | #define CONSOLE_EXT_LOG_MAX 8192 |
45 | ||
a8fe19eb | 46 | /* printk's without a loglevel use this.. */ |
42a9dc0b | 47 | #define MESSAGE_LOGLEVEL_DEFAULT CONFIG_MESSAGE_LOGLEVEL_DEFAULT |
a8fe19eb BP |
48 | |
49 | /* We show everything that is MORE important than this.. */ | |
50 | #define CONSOLE_LOGLEVEL_SILENT 0 /* Mum's the word */ | |
51 | #define CONSOLE_LOGLEVEL_MIN 1 /* Minimum loglevel we let people use */ | |
52 | #define CONSOLE_LOGLEVEL_QUIET 4 /* Shhh ..., when booted with "quiet" */ | |
a8fe19eb BP |
53 | #define CONSOLE_LOGLEVEL_DEBUG 10 /* issue debug messages */ |
54 | #define CONSOLE_LOGLEVEL_MOTORMOUTH 15 /* You can't shut this one up */ | |
55 | ||
a8cfdc68 OJ |
56 | /* |
57 | * Default used to be hard-coded at 7, we're now allowing it to be set from | |
58 | * kernel config. | |
59 | */ | |
60 | #define CONSOLE_LOGLEVEL_DEFAULT CONFIG_CONSOLE_LOGLEVEL_DEFAULT | |
61 | ||
968ab183 LT |
62 | extern int console_printk[]; |
63 | ||
64 | #define console_loglevel (console_printk[0]) | |
65 | #define default_message_loglevel (console_printk[1]) | |
66 | #define minimum_console_loglevel (console_printk[2]) | |
67 | #define default_console_loglevel (console_printk[3]) | |
68 | ||
a9747cc3 JP |
69 | static inline void console_silent(void) |
70 | { | |
a8fe19eb | 71 | console_loglevel = CONSOLE_LOGLEVEL_SILENT; |
a9747cc3 JP |
72 | } |
73 | ||
74 | static inline void console_verbose(void) | |
75 | { | |
76 | if (console_loglevel) | |
a8fe19eb | 77 | console_loglevel = CONSOLE_LOGLEVEL_MOTORMOUTH; |
a9747cc3 JP |
78 | } |
79 | ||
750afe7b BP |
80 | /* strlen("ratelimit") + 1 */ |
81 | #define DEVKMSG_STR_MAX_SIZE 10 | |
82 | extern char devkmsg_log_str[]; | |
83 | struct ctl_table; | |
84 | ||
968ab183 LT |
85 | struct va_format { |
86 | const char *fmt; | |
87 | va_list *va; | |
88 | }; | |
89 | ||
90 | /* | |
91 | * FW_BUG | |
92 | * Add this to a message where you are sure the firmware is buggy or behaves | |
93 | * really stupid or out of spec. Be aware that the responsible BIOS developer | |
94 | * should be able to fix this issue or at least get a concrete idea of the | |
95 | * problem by reading your message without the need of looking at the kernel | |
96 | * code. | |
97 | * | |
98 | * Use it for definite and high priority BIOS bugs. | |
99 | * | |
100 | * FW_WARN | |
101 | * Use it for not that clear (e.g. could the kernel messed up things already?) | |
102 | * and medium priority BIOS bugs. | |
103 | * | |
104 | * FW_INFO | |
105 | * Use this one if you want to tell the user or vendor about something | |
106 | * suspicious, but generally harmless related to the firmware. | |
107 | * | |
108 | * Use it for information or very low priority BIOS bugs. | |
109 | */ | |
110 | #define FW_BUG "[Firmware Bug]: " | |
111 | #define FW_WARN "[Firmware Warn]: " | |
112 | #define FW_INFO "[Firmware Info]: " | |
113 | ||
114 | /* | |
115 | * HW_ERR | |
116 | * Add this to a message for hardware errors, so that user can report | |
117 | * it to hardware vendor instead of LKML or software vendor. | |
118 | */ | |
119 | #define HW_ERR "[Hardware Error]: " | |
120 | ||
0a9a8bfd NH |
121 | /* |
122 | * DEPRECATED | |
123 | * Add this to a message whenever you want to warn user space about the use | |
124 | * of a deprecated aspect of an API so they can stop using it | |
125 | */ | |
126 | #define DEPRECATED "[Deprecated]: " | |
127 | ||
5264f2f7 JP |
128 | /* |
129 | * Dummy printk for disabled debugging statements to use whilst maintaining | |
fe22cd9b | 130 | * gcc's format checking. |
5264f2f7 | 131 | */ |
069f0cd0 BP |
132 | #define no_printk(fmt, ...) \ |
133 | ({ \ | |
134 | do { \ | |
135 | if (0) \ | |
136 | printk(fmt, ##__VA_ARGS__); \ | |
137 | } while (0); \ | |
138 | 0; \ | |
139 | }) | |
5264f2f7 | 140 | |
d0380e6c | 141 | #ifdef CONFIG_EARLY_PRINTK |
b9075fa9 | 142 | extern asmlinkage __printf(1, 2) |
5264f2f7 | 143 | void early_printk(const char *fmt, ...); |
d0380e6c TG |
144 | #else |
145 | static inline __printf(1, 2) __cold | |
146 | void early_printk(const char *s, ...) { } | |
147 | #endif | |
5264f2f7 | 148 | |
42a0bb3f PM |
149 | #ifdef CONFIG_PRINTK_NMI |
150 | extern void printk_nmi_init(void); | |
151 | extern void printk_nmi_enter(void); | |
152 | extern void printk_nmi_exit(void); | |
153 | extern void printk_nmi_flush(void); | |
cf9b1106 | 154 | extern void printk_nmi_flush_on_panic(void); |
42a0bb3f PM |
155 | #else |
156 | static inline void printk_nmi_init(void) { } | |
157 | static inline void printk_nmi_enter(void) { } | |
158 | static inline void printk_nmi_exit(void) { } | |
159 | static inline void printk_nmi_flush(void) { } | |
cf9b1106 | 160 | static inline void printk_nmi_flush_on_panic(void) { } |
42a0bb3f | 161 | #endif /* PRINTK_NMI */ |
04b74b27 | 162 | |
968ab183 | 163 | #ifdef CONFIG_PRINTK |
7ff9554b KS |
164 | asmlinkage __printf(5, 0) |
165 | int vprintk_emit(int facility, int level, | |
166 | const char *dict, size_t dictlen, | |
167 | const char *fmt, va_list args); | |
168 | ||
b9075fa9 | 169 | asmlinkage __printf(1, 0) |
5264f2f7 | 170 | int vprintk(const char *fmt, va_list args); |
7ff9554b KS |
171 | |
172 | asmlinkage __printf(5, 6) __cold | |
d487d575 SK |
173 | int printk_emit(int facility, int level, |
174 | const char *dict, size_t dictlen, | |
175 | const char *fmt, ...); | |
7ff9554b | 176 | |
b9075fa9 | 177 | asmlinkage __printf(1, 2) __cold |
5264f2f7 | 178 | int printk(const char *fmt, ...); |
968ab183 | 179 | |
3ccf3e83 | 180 | /* |
aac74dc4 | 181 | * Special printk facility for scheduler/timekeeping use only, _DO_NOT_USE_ ! |
3ccf3e83 | 182 | */ |
aac74dc4 | 183 | __printf(1, 2) __cold int printk_deferred(const char *fmt, ...); |
3ccf3e83 | 184 | |
968ab183 LT |
185 | /* |
186 | * Please don't use printk_ratelimit(), because it shares ratelimiting state | |
187 | * with all other unrelated printk_ratelimit() callsites. Instead use | |
188 | * printk_ratelimited() or plain old __ratelimit(). | |
189 | */ | |
190 | extern int __printk_ratelimit(const char *func); | |
191 | #define printk_ratelimit() __printk_ratelimit(__func__) | |
192 | extern bool printk_timed_ratelimit(unsigned long *caller_jiffies, | |
193 | unsigned int interval_msec); | |
194 | ||
195 | extern int printk_delay_msec; | |
196 | extern int dmesg_restrict; | |
455cd5ab | 197 | extern int kptr_restrict; |
968ab183 | 198 | |
750afe7b BP |
199 | extern int |
200 | devkmsg_sysctl_set_loglvl(struct ctl_table *table, int write, void __user *buf, | |
201 | size_t *lenp, loff_t *ppos); | |
202 | ||
dc72c32e FW |
203 | extern void wake_up_klogd(void); |
204 | ||
07261edb PK |
205 | char *log_buf_addr_get(void); |
206 | u32 log_buf_len_get(void); | |
968ab183 | 207 | void log_buf_kexec_setup(void); |
162a7e75 | 208 | void __init setup_log_buf(int early); |
8db14860 | 209 | __printf(1, 2) void dump_stack_set_arch_desc(const char *fmt, ...); |
196779b9 | 210 | void dump_stack_print_info(const char *log_lvl); |
a43cb95d | 211 | void show_regs_print_info(const char *log_lvl); |
968ab183 | 212 | #else |
b9075fa9 | 213 | static inline __printf(1, 0) |
5264f2f7 JP |
214 | int vprintk(const char *s, va_list args) |
215 | { | |
216 | return 0; | |
217 | } | |
b9075fa9 | 218 | static inline __printf(1, 2) __cold |
5264f2f7 JP |
219 | int printk(const char *s, ...) |
220 | { | |
221 | return 0; | |
222 | } | |
3ccf3e83 | 223 | static inline __printf(1, 2) __cold |
aac74dc4 | 224 | int printk_deferred(const char *s, ...) |
3ccf3e83 PZ |
225 | { |
226 | return 0; | |
227 | } | |
5264f2f7 JP |
228 | static inline int printk_ratelimit(void) |
229 | { | |
230 | return 0; | |
231 | } | |
232 | static inline bool printk_timed_ratelimit(unsigned long *caller_jiffies, | |
233 | unsigned int interval_msec) | |
234 | { | |
235 | return false; | |
236 | } | |
968ab183 | 237 | |
dc72c32e FW |
238 | static inline void wake_up_klogd(void) |
239 | { | |
240 | } | |
241 | ||
07261edb PK |
242 | static inline char *log_buf_addr_get(void) |
243 | { | |
244 | return NULL; | |
245 | } | |
246 | ||
247 | static inline u32 log_buf_len_get(void) | |
248 | { | |
249 | return 0; | |
250 | } | |
251 | ||
968ab183 LT |
252 | static inline void log_buf_kexec_setup(void) |
253 | { | |
254 | } | |
162a7e75 MT |
255 | |
256 | static inline void setup_log_buf(int early) | |
257 | { | |
258 | } | |
196779b9 | 259 | |
8db14860 | 260 | static inline __printf(1, 2) void dump_stack_set_arch_desc(const char *fmt, ...) |
98e5e1bf TH |
261 | { |
262 | } | |
263 | ||
196779b9 TH |
264 | static inline void dump_stack_print_info(const char *log_lvl) |
265 | { | |
266 | } | |
a43cb95d TH |
267 | |
268 | static inline void show_regs_print_info(const char *log_lvl) | |
269 | { | |
270 | } | |
968ab183 LT |
271 | #endif |
272 | ||
b6c035d0 | 273 | extern asmlinkage void dump_stack(void) __cold; |
968ab183 | 274 | |
968ab183 LT |
275 | #ifndef pr_fmt |
276 | #define pr_fmt(fmt) fmt | |
277 | #endif | |
278 | ||
6e099f55 DS |
279 | /* |
280 | * These can be used to print at the various log levels. | |
281 | * All of these will print unconditionally, although note that pr_debug() | |
282 | * and other debug macros are compiled out unless either DEBUG is defined | |
283 | * or CONFIG_DYNAMIC_DEBUG is set. | |
284 | */ | |
a0cba217 LT |
285 | #define pr_emerg(fmt, ...) \ |
286 | printk(KERN_EMERG pr_fmt(fmt), ##__VA_ARGS__) | |
287 | #define pr_alert(fmt, ...) \ | |
288 | printk(KERN_ALERT pr_fmt(fmt), ##__VA_ARGS__) | |
289 | #define pr_crit(fmt, ...) \ | |
290 | printk(KERN_CRIT pr_fmt(fmt), ##__VA_ARGS__) | |
291 | #define pr_err(fmt, ...) \ | |
292 | printk(KERN_ERR pr_fmt(fmt), ##__VA_ARGS__) | |
293 | #define pr_warning(fmt, ...) \ | |
294 | printk(KERN_WARNING pr_fmt(fmt), ##__VA_ARGS__) | |
295 | #define pr_warn pr_warning | |
296 | #define pr_notice(fmt, ...) \ | |
297 | printk(KERN_NOTICE pr_fmt(fmt), ##__VA_ARGS__) | |
298 | #define pr_info(fmt, ...) \ | |
299 | printk(KERN_INFO pr_fmt(fmt), ##__VA_ARGS__) | |
7b1460ec SR |
300 | /* |
301 | * Like KERN_CONT, pr_cont() should only be used when continuing | |
302 | * a line with no newline ('\n') enclosed. Otherwise it defaults | |
303 | * back to KERN_DEFAULT. | |
304 | */ | |
968ab183 LT |
305 | #define pr_cont(fmt, ...) \ |
306 | printk(KERN_CONT fmt, ##__VA_ARGS__) | |
307 | ||
308 | /* pr_devel() should produce zero code unless DEBUG is defined */ | |
309 | #ifdef DEBUG | |
310 | #define pr_devel(fmt, ...) \ | |
311 | printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__) | |
312 | #else | |
313 | #define pr_devel(fmt, ...) \ | |
5264f2f7 | 314 | no_printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__) |
968ab183 LT |
315 | #endif |
316 | ||
29fc2bc7 | 317 | |
968ab183 | 318 | /* If you are writing a driver, please use dev_dbg instead */ |
b558c96f | 319 | #if defined(CONFIG_DYNAMIC_DEBUG) |
9d5059c9 LB |
320 | #include <linux/dynamic_debug.h> |
321 | ||
968ab183 LT |
322 | /* dynamic_pr_debug() uses pr_fmt() internally so we don't need it here */ |
323 | #define pr_debug(fmt, ...) \ | |
324 | dynamic_pr_debug(fmt, ##__VA_ARGS__) | |
b558c96f JC |
325 | #elif defined(DEBUG) |
326 | #define pr_debug(fmt, ...) \ | |
327 | printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__) | |
968ab183 LT |
328 | #else |
329 | #define pr_debug(fmt, ...) \ | |
5264f2f7 | 330 | no_printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__) |
968ab183 LT |
331 | #endif |
332 | ||
16cb839f JP |
333 | /* |
334 | * Print a one-time message (analogous to WARN_ONCE() et al): | |
335 | */ | |
336 | ||
337 | #ifdef CONFIG_PRINTK | |
c28aa1f0 JP |
338 | #define printk_once(fmt, ...) \ |
339 | ({ \ | |
340 | static bool __print_once __read_mostly; \ | |
069f0cd0 | 341 | bool __ret_print_once = !__print_once; \ |
c28aa1f0 JP |
342 | \ |
343 | if (!__print_once) { \ | |
344 | __print_once = true; \ | |
345 | printk(fmt, ##__VA_ARGS__); \ | |
346 | } \ | |
069f0cd0 | 347 | unlikely(__ret_print_once); \ |
16cb839f | 348 | }) |
c224815d JS |
349 | #define printk_deferred_once(fmt, ...) \ |
350 | ({ \ | |
351 | static bool __print_once __read_mostly; \ | |
069f0cd0 | 352 | bool __ret_print_once = !__print_once; \ |
c224815d JS |
353 | \ |
354 | if (!__print_once) { \ | |
355 | __print_once = true; \ | |
356 | printk_deferred(fmt, ##__VA_ARGS__); \ | |
357 | } \ | |
069f0cd0 | 358 | unlikely(__ret_print_once); \ |
c224815d | 359 | }) |
16cb839f | 360 | #else |
c28aa1f0 | 361 | #define printk_once(fmt, ...) \ |
16cb839f | 362 | no_printk(fmt, ##__VA_ARGS__) |
c224815d JS |
363 | #define printk_deferred_once(fmt, ...) \ |
364 | no_printk(fmt, ##__VA_ARGS__) | |
16cb839f JP |
365 | #endif |
366 | ||
367 | #define pr_emerg_once(fmt, ...) \ | |
368 | printk_once(KERN_EMERG pr_fmt(fmt), ##__VA_ARGS__) | |
369 | #define pr_alert_once(fmt, ...) \ | |
370 | printk_once(KERN_ALERT pr_fmt(fmt), ##__VA_ARGS__) | |
371 | #define pr_crit_once(fmt, ...) \ | |
372 | printk_once(KERN_CRIT pr_fmt(fmt), ##__VA_ARGS__) | |
373 | #define pr_err_once(fmt, ...) \ | |
374 | printk_once(KERN_ERR pr_fmt(fmt), ##__VA_ARGS__) | |
375 | #define pr_warn_once(fmt, ...) \ | |
376 | printk_once(KERN_WARNING pr_fmt(fmt), ##__VA_ARGS__) | |
377 | #define pr_notice_once(fmt, ...) \ | |
378 | printk_once(KERN_NOTICE pr_fmt(fmt), ##__VA_ARGS__) | |
379 | #define pr_info_once(fmt, ...) \ | |
380 | printk_once(KERN_INFO pr_fmt(fmt), ##__VA_ARGS__) | |
381 | #define pr_cont_once(fmt, ...) \ | |
382 | printk_once(KERN_CONT pr_fmt(fmt), ##__VA_ARGS__) | |
36d308d8 MG |
383 | |
384 | #if defined(DEBUG) | |
385 | #define pr_devel_once(fmt, ...) \ | |
386 | printk_once(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__) | |
387 | #else | |
388 | #define pr_devel_once(fmt, ...) \ | |
389 | no_printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__) | |
390 | #endif | |
391 | ||
16cb839f JP |
392 | /* If you are writing a driver, please use dev_dbg instead */ |
393 | #if defined(DEBUG) | |
394 | #define pr_debug_once(fmt, ...) \ | |
395 | printk_once(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__) | |
396 | #else | |
397 | #define pr_debug_once(fmt, ...) \ | |
398 | no_printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__) | |
399 | #endif | |
400 | ||
968ab183 LT |
401 | /* |
402 | * ratelimited messages with local ratelimit_state, | |
403 | * no local ratelimit_state used in the !PRINTK case | |
404 | */ | |
405 | #ifdef CONFIG_PRINTK | |
6ec42a56 JP |
406 | #define printk_ratelimited(fmt, ...) \ |
407 | ({ \ | |
968ab183 LT |
408 | static DEFINE_RATELIMIT_STATE(_rs, \ |
409 | DEFAULT_RATELIMIT_INTERVAL, \ | |
410 | DEFAULT_RATELIMIT_BURST); \ | |
411 | \ | |
412 | if (__ratelimit(&_rs)) \ | |
413 | printk(fmt, ##__VA_ARGS__); \ | |
414 | }) | |
415 | #else | |
6ec42a56 JP |
416 | #define printk_ratelimited(fmt, ...) \ |
417 | no_printk(fmt, ##__VA_ARGS__) | |
968ab183 LT |
418 | #endif |
419 | ||
6ec42a56 | 420 | #define pr_emerg_ratelimited(fmt, ...) \ |
968ab183 | 421 | printk_ratelimited(KERN_EMERG pr_fmt(fmt), ##__VA_ARGS__) |
6ec42a56 | 422 | #define pr_alert_ratelimited(fmt, ...) \ |
968ab183 | 423 | printk_ratelimited(KERN_ALERT pr_fmt(fmt), ##__VA_ARGS__) |
6ec42a56 | 424 | #define pr_crit_ratelimited(fmt, ...) \ |
968ab183 | 425 | printk_ratelimited(KERN_CRIT pr_fmt(fmt), ##__VA_ARGS__) |
6ec42a56 | 426 | #define pr_err_ratelimited(fmt, ...) \ |
968ab183 | 427 | printk_ratelimited(KERN_ERR pr_fmt(fmt), ##__VA_ARGS__) |
6ec42a56 | 428 | #define pr_warn_ratelimited(fmt, ...) \ |
968ab183 | 429 | printk_ratelimited(KERN_WARNING pr_fmt(fmt), ##__VA_ARGS__) |
6ec42a56 | 430 | #define pr_notice_ratelimited(fmt, ...) \ |
968ab183 | 431 | printk_ratelimited(KERN_NOTICE pr_fmt(fmt), ##__VA_ARGS__) |
6ec42a56 | 432 | #define pr_info_ratelimited(fmt, ...) \ |
968ab183 LT |
433 | printk_ratelimited(KERN_INFO pr_fmt(fmt), ##__VA_ARGS__) |
434 | /* no pr_cont_ratelimited, don't do that... */ | |
36d308d8 MG |
435 | |
436 | #if defined(DEBUG) | |
437 | #define pr_devel_ratelimited(fmt, ...) \ | |
438 | printk_ratelimited(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__) | |
439 | #else | |
440 | #define pr_devel_ratelimited(fmt, ...) \ | |
441 | no_printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__) | |
442 | #endif | |
443 | ||
968ab183 | 444 | /* If you are writing a driver, please use dev_dbg instead */ |
29fc2bc7 JP |
445 | #if defined(CONFIG_DYNAMIC_DEBUG) |
446 | /* descriptor check is first to prevent flooding with "callbacks suppressed" */ | |
447 | #define pr_debug_ratelimited(fmt, ...) \ | |
448 | do { \ | |
449 | static DEFINE_RATELIMIT_STATE(_rs, \ | |
450 | DEFAULT_RATELIMIT_INTERVAL, \ | |
451 | DEFAULT_RATELIMIT_BURST); \ | |
515a9adc | 452 | DEFINE_DYNAMIC_DEBUG_METADATA(descriptor, pr_fmt(fmt)); \ |
29fc2bc7 JP |
453 | if (unlikely(descriptor.flags & _DPRINTK_FLAGS_PRINT) && \ |
454 | __ratelimit(&_rs)) \ | |
515a9adc | 455 | __dynamic_pr_debug(&descriptor, pr_fmt(fmt), ##__VA_ARGS__); \ |
29fc2bc7 JP |
456 | } while (0) |
457 | #elif defined(DEBUG) | |
6ec42a56 | 458 | #define pr_debug_ratelimited(fmt, ...) \ |
968ab183 LT |
459 | printk_ratelimited(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__) |
460 | #else | |
461 | #define pr_debug_ratelimited(fmt, ...) \ | |
5264f2f7 | 462 | no_printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__) |
968ab183 LT |
463 | #endif |
464 | ||
e11fea92 KS |
465 | extern const struct file_operations kmsg_fops; |
466 | ||
ac83ed68 JP |
467 | enum { |
468 | DUMP_PREFIX_NONE, | |
469 | DUMP_PREFIX_ADDRESS, | |
470 | DUMP_PREFIX_OFFSET | |
471 | }; | |
114fc1af AS |
472 | extern int hex_dump_to_buffer(const void *buf, size_t len, int rowsize, |
473 | int groupsize, char *linebuf, size_t linebuflen, | |
474 | bool ascii); | |
ac83ed68 JP |
475 | #ifdef CONFIG_PRINTK |
476 | extern void print_hex_dump(const char *level, const char *prefix_str, | |
477 | int prefix_type, int rowsize, int groupsize, | |
478 | const void *buf, size_t len, bool ascii); | |
7a555613 VK |
479 | #if defined(CONFIG_DYNAMIC_DEBUG) |
480 | #define print_hex_dump_bytes(prefix_str, prefix_type, buf, len) \ | |
481 | dynamic_hex_dump(prefix_str, prefix_type, 16, 1, buf, len, true) | |
482 | #else | |
ac83ed68 JP |
483 | extern void print_hex_dump_bytes(const char *prefix_str, int prefix_type, |
484 | const void *buf, size_t len); | |
7a555613 | 485 | #endif /* defined(CONFIG_DYNAMIC_DEBUG) */ |
ac83ed68 JP |
486 | #else |
487 | static inline void print_hex_dump(const char *level, const char *prefix_str, | |
488 | int prefix_type, int rowsize, int groupsize, | |
489 | const void *buf, size_t len, bool ascii) | |
490 | { | |
491 | } | |
492 | static inline void print_hex_dump_bytes(const char *prefix_str, int prefix_type, | |
493 | const void *buf, size_t len) | |
494 | { | |
495 | } | |
496 | ||
497 | #endif | |
498 | ||
7a555613 VK |
499 | #if defined(CONFIG_DYNAMIC_DEBUG) |
500 | #define print_hex_dump_debug(prefix_str, prefix_type, rowsize, \ | |
501 | groupsize, buf, len, ascii) \ | |
502 | dynamic_hex_dump(prefix_str, prefix_type, rowsize, \ | |
503 | groupsize, buf, len, ascii) | |
cdf17449 | 504 | #elif defined(DEBUG) |
7a555613 VK |
505 | #define print_hex_dump_debug(prefix_str, prefix_type, rowsize, \ |
506 | groupsize, buf, len, ascii) \ | |
507 | print_hex_dump(KERN_DEBUG, prefix_str, prefix_type, rowsize, \ | |
508 | groupsize, buf, len, ascii) | |
cdf17449 LW |
509 | #else |
510 | static inline void print_hex_dump_debug(const char *prefix_str, int prefix_type, | |
511 | int rowsize, int groupsize, | |
512 | const void *buf, size_t len, bool ascii) | |
513 | { | |
514 | } | |
515 | #endif | |
7a555613 | 516 | |
968ab183 | 517 | #endif |