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