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e54456f5 MD |
1 | #undef TRACE_SYSTEM |
2 | #define TRACE_SYSTEM timer | |
3 | ||
3bc29f0a MD |
4 | #if !defined(LTTNG_TRACE_TIMER_H) || defined(TRACE_HEADER_MULTI_READ) |
5 | #define LTTNG_TRACE_TIMER_H | |
e54456f5 | 6 | |
3bc29f0a | 7 | #include "../../../probes/lttng-tracepoint-event.h" |
e54456f5 MD |
8 | |
9 | #ifndef _TRACE_TIMER_DEF_ | |
10 | #define _TRACE_TIMER_DEF_ | |
11 | #include <linux/hrtimer.h> | |
12 | #include <linux/timer.h> | |
f3f909f4 | 13 | #include <linux/version.h> |
3a523f5b MD |
14 | |
15 | struct timer_list; | |
16 | ||
e54456f5 MD |
17 | #endif /* _TRACE_TIMER_DEF_ */ |
18 | ||
3bc29f0a | 19 | LTTNG_TRACEPOINT_EVENT_CLASS(timer_class, |
e54456f5 MD |
20 | |
21 | TP_PROTO(struct timer_list *timer), | |
22 | ||
23 | TP_ARGS(timer), | |
24 | ||
25 | TP_STRUCT__entry( | |
26 | __field( void *, timer ) | |
27 | ), | |
28 | ||
29 | TP_fast_assign( | |
30 | tp_assign(timer, timer) | |
31 | ), | |
32 | ||
33 | TP_printk("timer=%p", __entry->timer) | |
34 | ) | |
35 | ||
36 | /** | |
37 | * timer_init - called when the timer is initialized | |
38 | * @timer: pointer to struct timer_list | |
39 | */ | |
3bc29f0a | 40 | LTTNG_TRACEPOINT_EVENT_INSTANCE(timer_class, timer_init, |
e54456f5 MD |
41 | |
42 | TP_PROTO(struct timer_list *timer), | |
43 | ||
44 | TP_ARGS(timer) | |
45 | ) | |
46 | ||
f3f909f4 MD |
47 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,2,0)) |
48 | /** | |
49 | * timer_start - called when the timer is started | |
50 | * @timer: pointer to struct timer_list | |
51 | * @expires: the timers expiry time | |
52 | * @flags: the timers expiry time | |
53 | */ | |
54 | LTTNG_TRACEPOINT_EVENT(timer_start, | |
55 | ||
56 | TP_PROTO(struct timer_list *timer, unsigned long expires, | |
57 | unsigned int flags), | |
58 | ||
59 | TP_ARGS(timer, expires, flags), | |
60 | ||
61 | TP_STRUCT__entry( | |
62 | __field( void *, timer ) | |
63 | __field( void *, function ) | |
64 | __field( unsigned long, expires ) | |
65 | __field( unsigned long, now ) | |
66 | __field( unsigned int, flags ) | |
67 | ), | |
68 | ||
69 | TP_fast_assign( | |
70 | tp_assign(timer, timer) | |
71 | tp_assign(function, timer->function) | |
72 | tp_assign(expires, expires) | |
73 | tp_assign(now, jiffies) | |
74 | tp_assign(flags, flags) | |
75 | ), | |
76 | ||
77 | TP_printk() | |
78 | ) | |
79 | #else /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,2,0)) */ | |
e54456f5 MD |
80 | /** |
81 | * timer_start - called when the timer is started | |
82 | * @timer: pointer to struct timer_list | |
83 | * @expires: the timers expiry time | |
84 | */ | |
3bc29f0a | 85 | LTTNG_TRACEPOINT_EVENT(timer_start, |
e54456f5 MD |
86 | |
87 | TP_PROTO(struct timer_list *timer, unsigned long expires), | |
88 | ||
89 | TP_ARGS(timer, expires), | |
90 | ||
91 | TP_STRUCT__entry( | |
92 | __field( void *, timer ) | |
93 | __field( void *, function ) | |
94 | __field( unsigned long, expires ) | |
95 | __field( unsigned long, now ) | |
96 | ), | |
97 | ||
98 | TP_fast_assign( | |
99 | tp_assign(timer, timer) | |
100 | tp_assign(function, timer->function) | |
101 | tp_assign(expires, expires) | |
102 | tp_assign(now, jiffies) | |
103 | ), | |
104 | ||
105 | TP_printk("timer=%p function=%pf expires=%lu [timeout=%ld]", | |
106 | __entry->timer, __entry->function, __entry->expires, | |
107 | (long)__entry->expires - __entry->now) | |
108 | ) | |
f3f909f4 | 109 | #endif /* #else #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,2,0)) */ |
e54456f5 MD |
110 | |
111 | /** | |
112 | * timer_expire_entry - called immediately before the timer callback | |
113 | * @timer: pointer to struct timer_list | |
114 | * | |
115 | * Allows to determine the timer latency. | |
116 | */ | |
3bc29f0a | 117 | LTTNG_TRACEPOINT_EVENT(timer_expire_entry, |
e54456f5 MD |
118 | |
119 | TP_PROTO(struct timer_list *timer), | |
120 | ||
121 | TP_ARGS(timer), | |
122 | ||
123 | TP_STRUCT__entry( | |
124 | __field( void *, timer ) | |
125 | __field( unsigned long, now ) | |
126 | __field( void *, function) | |
127 | ), | |
128 | ||
129 | TP_fast_assign( | |
130 | tp_assign(timer, timer) | |
131 | tp_assign(now, jiffies) | |
132 | tp_assign(function, timer->function) | |
133 | ), | |
134 | ||
135 | TP_printk("timer=%p function=%pf now=%lu", __entry->timer, __entry->function,__entry->now) | |
136 | ) | |
137 | ||
138 | /** | |
139 | * timer_expire_exit - called immediately after the timer callback returns | |
140 | * @timer: pointer to struct timer_list | |
141 | * | |
142 | * When used in combination with the timer_expire_entry tracepoint we can | |
143 | * determine the runtime of the timer callback function. | |
144 | * | |
145 | * NOTE: Do NOT derefernce timer in TP_fast_assign. The pointer might | |
146 | * be invalid. We solely track the pointer. | |
147 | */ | |
3bc29f0a | 148 | LTTNG_TRACEPOINT_EVENT_INSTANCE(timer_class, timer_expire_exit, |
e54456f5 MD |
149 | |
150 | TP_PROTO(struct timer_list *timer), | |
151 | ||
152 | TP_ARGS(timer) | |
153 | ) | |
154 | ||
155 | /** | |
156 | * timer_cancel - called when the timer is canceled | |
157 | * @timer: pointer to struct timer_list | |
158 | */ | |
3bc29f0a | 159 | LTTNG_TRACEPOINT_EVENT_INSTANCE(timer_class, timer_cancel, |
e54456f5 MD |
160 | |
161 | TP_PROTO(struct timer_list *timer), | |
162 | ||
163 | TP_ARGS(timer) | |
164 | ) | |
165 | ||
166 | /** | |
167 | * hrtimer_init - called when the hrtimer is initialized | |
168 | * @timer: pointer to struct hrtimer | |
169 | * @clockid: the hrtimers clock | |
170 | * @mode: the hrtimers mode | |
171 | */ | |
3bc29f0a | 172 | LTTNG_TRACEPOINT_EVENT(hrtimer_init, |
e54456f5 MD |
173 | |
174 | TP_PROTO(struct hrtimer *hrtimer, clockid_t clockid, | |
175 | enum hrtimer_mode mode), | |
176 | ||
177 | TP_ARGS(hrtimer, clockid, mode), | |
178 | ||
179 | TP_STRUCT__entry( | |
180 | __field( void *, hrtimer ) | |
181 | __field( clockid_t, clockid ) | |
182 | __field( enum hrtimer_mode, mode ) | |
183 | ), | |
184 | ||
185 | TP_fast_assign( | |
186 | tp_assign(hrtimer, hrtimer) | |
187 | tp_assign(clockid, clockid) | |
188 | tp_assign(mode, mode) | |
189 | ), | |
190 | ||
191 | TP_printk("hrtimer=%p clockid=%s mode=%s", __entry->hrtimer, | |
192 | __entry->clockid == CLOCK_REALTIME ? | |
193 | "CLOCK_REALTIME" : "CLOCK_MONOTONIC", | |
194 | __entry->mode == HRTIMER_MODE_ABS ? | |
195 | "HRTIMER_MODE_ABS" : "HRTIMER_MODE_REL") | |
196 | ) | |
197 | ||
198 | /** | |
199 | * hrtimer_start - called when the hrtimer is started | |
200 | * @timer: pointer to struct hrtimer | |
201 | */ | |
3bc29f0a | 202 | LTTNG_TRACEPOINT_EVENT(hrtimer_start, |
e54456f5 MD |
203 | |
204 | TP_PROTO(struct hrtimer *hrtimer), | |
205 | ||
206 | TP_ARGS(hrtimer), | |
207 | ||
208 | TP_STRUCT__entry( | |
209 | __field( void *, hrtimer ) | |
210 | __field( void *, function ) | |
211 | __field( s64, expires ) | |
212 | __field( s64, softexpires ) | |
213 | ), | |
214 | ||
215 | TP_fast_assign( | |
216 | tp_assign(hrtimer, hrtimer) | |
217 | tp_assign(function, hrtimer->function) | |
218 | tp_assign(expires, hrtimer_get_expires(hrtimer).tv64) | |
219 | tp_assign(softexpires, hrtimer_get_softexpires(hrtimer).tv64) | |
220 | ), | |
221 | ||
222 | TP_printk("hrtimer=%p function=%pf expires=%llu softexpires=%llu", | |
223 | __entry->hrtimer, __entry->function, | |
224 | (unsigned long long)ktime_to_ns((ktime_t) { | |
225 | .tv64 = __entry->expires }), | |
226 | (unsigned long long)ktime_to_ns((ktime_t) { | |
227 | .tv64 = __entry->softexpires })) | |
228 | ) | |
229 | ||
230 | /** | |
231 | * htimmer_expire_entry - called immediately before the hrtimer callback | |
232 | * @timer: pointer to struct hrtimer | |
233 | * @now: pointer to variable which contains current time of the | |
234 | * timers base. | |
235 | * | |
236 | * Allows to determine the timer latency. | |
237 | */ | |
3bc29f0a | 238 | LTTNG_TRACEPOINT_EVENT(hrtimer_expire_entry, |
e54456f5 MD |
239 | |
240 | TP_PROTO(struct hrtimer *hrtimer, ktime_t *now), | |
241 | ||
242 | TP_ARGS(hrtimer, now), | |
243 | ||
244 | TP_STRUCT__entry( | |
245 | __field( void *, hrtimer ) | |
246 | __field( s64, now ) | |
247 | __field( void *, function) | |
248 | ), | |
249 | ||
250 | TP_fast_assign( | |
251 | tp_assign(hrtimer, hrtimer) | |
252 | tp_assign(now, now->tv64) | |
253 | tp_assign(function, hrtimer->function) | |
254 | ), | |
255 | ||
256 | TP_printk("hrtimer=%p function=%pf now=%llu", __entry->hrtimer, __entry->function, | |
257 | (unsigned long long)ktime_to_ns((ktime_t) { .tv64 = __entry->now })) | |
258 | ) | |
259 | ||
3bc29f0a | 260 | LTTNG_TRACEPOINT_EVENT_CLASS(hrtimer_class, |
e54456f5 MD |
261 | |
262 | TP_PROTO(struct hrtimer *hrtimer), | |
263 | ||
264 | TP_ARGS(hrtimer), | |
265 | ||
266 | TP_STRUCT__entry( | |
267 | __field( void *, hrtimer ) | |
268 | ), | |
269 | ||
270 | TP_fast_assign( | |
271 | tp_assign(hrtimer, hrtimer) | |
272 | ), | |
273 | ||
274 | TP_printk("hrtimer=%p", __entry->hrtimer) | |
275 | ) | |
276 | ||
277 | /** | |
278 | * hrtimer_expire_exit - called immediately after the hrtimer callback returns | |
279 | * @timer: pointer to struct hrtimer | |
280 | * | |
281 | * When used in combination with the hrtimer_expire_entry tracepoint we can | |
282 | * determine the runtime of the callback function. | |
283 | */ | |
3bc29f0a | 284 | LTTNG_TRACEPOINT_EVENT_INSTANCE(hrtimer_class, hrtimer_expire_exit, |
e54456f5 MD |
285 | |
286 | TP_PROTO(struct hrtimer *hrtimer), | |
287 | ||
288 | TP_ARGS(hrtimer) | |
289 | ) | |
290 | ||
291 | /** | |
292 | * hrtimer_cancel - called when the hrtimer is canceled | |
293 | * @hrtimer: pointer to struct hrtimer | |
294 | */ | |
3bc29f0a | 295 | LTTNG_TRACEPOINT_EVENT_INSTANCE(hrtimer_class, hrtimer_cancel, |
e54456f5 MD |
296 | |
297 | TP_PROTO(struct hrtimer *hrtimer), | |
298 | ||
299 | TP_ARGS(hrtimer) | |
300 | ) | |
301 | ||
302 | /** | |
303 | * itimer_state - called when itimer is started or canceled | |
304 | * @which: name of the interval timer | |
305 | * @value: the itimers value, itimer is canceled if value->it_value is | |
306 | * zero, otherwise it is started | |
307 | * @expires: the itimers expiry time | |
308 | */ | |
3bc29f0a | 309 | LTTNG_TRACEPOINT_EVENT(itimer_state, |
e54456f5 MD |
310 | |
311 | TP_PROTO(int which, const struct itimerval *const value, | |
312 | cputime_t expires), | |
313 | ||
314 | TP_ARGS(which, value, expires), | |
315 | ||
316 | TP_STRUCT__entry( | |
317 | __field( int, which ) | |
318 | __field( cputime_t, expires ) | |
319 | __field( long, value_sec ) | |
320 | __field( long, value_usec ) | |
321 | __field( long, interval_sec ) | |
322 | __field( long, interval_usec ) | |
323 | ), | |
324 | ||
325 | TP_fast_assign( | |
326 | tp_assign(which, which) | |
327 | tp_assign(expires, expires) | |
328 | tp_assign(value_sec, value->it_value.tv_sec) | |
329 | tp_assign(value_usec, value->it_value.tv_usec) | |
330 | tp_assign(interval_sec, value->it_interval.tv_sec) | |
331 | tp_assign(interval_usec, value->it_interval.tv_usec) | |
332 | ), | |
333 | ||
334 | TP_printk("which=%d expires=%llu it_value=%ld.%ld it_interval=%ld.%ld", | |
335 | __entry->which, (unsigned long long)__entry->expires, | |
336 | __entry->value_sec, __entry->value_usec, | |
337 | __entry->interval_sec, __entry->interval_usec) | |
338 | ) | |
339 | ||
340 | /** | |
341 | * itimer_expire - called when itimer expires | |
342 | * @which: type of the interval timer | |
343 | * @pid: pid of the process which owns the timer | |
344 | * @now: current time, used to calculate the latency of itimer | |
345 | */ | |
3bc29f0a | 346 | LTTNG_TRACEPOINT_EVENT(itimer_expire, |
e54456f5 MD |
347 | |
348 | TP_PROTO(int which, struct pid *pid, cputime_t now), | |
349 | ||
350 | TP_ARGS(which, pid, now), | |
351 | ||
352 | TP_STRUCT__entry( | |
353 | __field( int , which ) | |
354 | __field( pid_t, pid ) | |
355 | __field( cputime_t, now ) | |
356 | ), | |
357 | ||
358 | TP_fast_assign( | |
359 | tp_assign(which, which) | |
360 | tp_assign(now, now) | |
361 | tp_assign(pid, pid_nr(pid)) | |
362 | ), | |
363 | ||
364 | TP_printk("which=%d pid=%d now=%llu", __entry->which, | |
365 | (int) __entry->pid, (unsigned long long)__entry->now) | |
366 | ) | |
367 | ||
3bc29f0a | 368 | #endif /* LTTNG_TRACE_TIMER_H */ |
e54456f5 MD |
369 | |
370 | /* This part must be outside protection */ | |
371 | #include "../../../probes/define_trace.h" |