Add TRACE_EVENT(sched_process_exec) to sched.h
[lttng-modules.git] / instrumentation / events / mainline / sched.h
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f62b389e
MD
1#undef TRACE_SYSTEM
2#define TRACE_SYSTEM sched
3
4#if !defined(_TRACE_SCHED_H) || defined(TRACE_HEADER_MULTI_READ)
5#define _TRACE_SCHED_H
6
7#include <linux/sched.h>
8#include <linux/tracepoint.h>
9
10/*
11 * Tracepoint for calling kthread_stop, performed to end a kthread:
12 */
13TRACE_EVENT(sched_kthread_stop,
14
15 TP_PROTO(struct task_struct *t),
16
17 TP_ARGS(t),
18
19 TP_STRUCT__entry(
20 __array( char, comm, TASK_COMM_LEN )
21 __field( pid_t, pid )
22 ),
23
24 TP_fast_assign(
25 memcpy(__entry->comm, t->comm, TASK_COMM_LEN);
26 __entry->pid = t->pid;
27 ),
28
29 TP_printk("comm=%s pid=%d", __entry->comm, __entry->pid)
30);
31
32/*
33 * Tracepoint for the return value of the kthread stopping:
34 */
35TRACE_EVENT(sched_kthread_stop_ret,
36
37 TP_PROTO(int ret),
38
39 TP_ARGS(ret),
40
41 TP_STRUCT__entry(
42 __field( int, ret )
43 ),
44
45 TP_fast_assign(
46 __entry->ret = ret;
47 ),
48
49 TP_printk("ret=%d", __entry->ret)
50);
51
52/*
53 * Tracepoint for waking up a task:
54 */
55DECLARE_EVENT_CLASS(sched_wakeup_template,
56
57 TP_PROTO(struct task_struct *p, int success),
58
59 TP_ARGS(p, success),
60
61 TP_STRUCT__entry(
62 __array( char, comm, TASK_COMM_LEN )
63 __field( pid_t, pid )
64 __field( int, prio )
65 __field( int, success )
66 __field( int, target_cpu )
67 ),
68
69 TP_fast_assign(
70 memcpy(__entry->comm, p->comm, TASK_COMM_LEN);
71 __entry->pid = p->pid;
72 __entry->prio = p->prio;
73 __entry->success = success;
74 __entry->target_cpu = task_cpu(p);
75 ),
76
77 TP_printk("comm=%s pid=%d prio=%d success=%d target_cpu=%03d",
78 __entry->comm, __entry->pid, __entry->prio,
79 __entry->success, __entry->target_cpu)
80);
81
82DEFINE_EVENT(sched_wakeup_template, sched_wakeup,
83 TP_PROTO(struct task_struct *p, int success),
84 TP_ARGS(p, success));
85
86/*
87 * Tracepoint for waking up a new task:
88 */
89DEFINE_EVENT(sched_wakeup_template, sched_wakeup_new,
90 TP_PROTO(struct task_struct *p, int success),
91 TP_ARGS(p, success));
92
93#ifdef CREATE_TRACE_POINTS
94static inline long __trace_sched_switch_state(struct task_struct *p)
95{
96 long state = p->state;
97
98#ifdef CONFIG_PREEMPT
99 /*
100 * For all intents and purposes a preempted task is a running task.
101 */
102 if (task_thread_info(p)->preempt_count & PREEMPT_ACTIVE)
103 state = TASK_RUNNING;
104#endif
105
106 return state;
107}
108#endif
109
110/*
111 * Tracepoint for task switches, performed by the scheduler:
112 */
113TRACE_EVENT(sched_switch,
114
115 TP_PROTO(struct task_struct *prev,
116 struct task_struct *next),
117
118 TP_ARGS(prev, next),
119
120 TP_STRUCT__entry(
121 __array( char, prev_comm, TASK_COMM_LEN )
122 __field( pid_t, prev_pid )
123 __field( int, prev_prio )
124 __field( long, prev_state )
125 __array( char, next_comm, TASK_COMM_LEN )
126 __field( pid_t, next_pid )
127 __field( int, next_prio )
128 ),
129
130 TP_fast_assign(
131 memcpy(__entry->next_comm, next->comm, TASK_COMM_LEN);
132 __entry->prev_pid = prev->pid;
133 __entry->prev_prio = prev->prio;
134 __entry->prev_state = __trace_sched_switch_state(prev);
135 memcpy(__entry->prev_comm, prev->comm, TASK_COMM_LEN);
136 __entry->next_pid = next->pid;
137 __entry->next_prio = next->prio;
138 ),
139
140 TP_printk("prev_comm=%s prev_pid=%d prev_prio=%d prev_state=%s ==> next_comm=%s next_pid=%d next_prio=%d",
141 __entry->prev_comm, __entry->prev_pid, __entry->prev_prio,
142 __entry->prev_state ?
143 __print_flags(__entry->prev_state, "|",
144 { 1, "S"} , { 2, "D" }, { 4, "T" }, { 8, "t" },
145 { 16, "Z" }, { 32, "X" }, { 64, "x" },
146 { 128, "W" }) : "R",
147 __entry->next_comm, __entry->next_pid, __entry->next_prio)
148);
149
150/*
151 * Tracepoint for a task being migrated:
152 */
153TRACE_EVENT(sched_migrate_task,
154
155 TP_PROTO(struct task_struct *p, int dest_cpu),
156
157 TP_ARGS(p, dest_cpu),
158
159 TP_STRUCT__entry(
160 __array( char, comm, TASK_COMM_LEN )
161 __field( pid_t, pid )
162 __field( int, prio )
163 __field( int, orig_cpu )
164 __field( int, dest_cpu )
165 ),
166
167 TP_fast_assign(
168 memcpy(__entry->comm, p->comm, TASK_COMM_LEN);
169 __entry->pid = p->pid;
170 __entry->prio = p->prio;
171 __entry->orig_cpu = task_cpu(p);
172 __entry->dest_cpu = dest_cpu;
173 ),
174
175 TP_printk("comm=%s pid=%d prio=%d orig_cpu=%d dest_cpu=%d",
176 __entry->comm, __entry->pid, __entry->prio,
177 __entry->orig_cpu, __entry->dest_cpu)
178);
179
180DECLARE_EVENT_CLASS(sched_process_template,
181
182 TP_PROTO(struct task_struct *p),
183
184 TP_ARGS(p),
185
186 TP_STRUCT__entry(
187 __array( char, comm, TASK_COMM_LEN )
188 __field( pid_t, pid )
189 __field( int, prio )
190 ),
191
192 TP_fast_assign(
193 memcpy(__entry->comm, p->comm, TASK_COMM_LEN);
194 __entry->pid = p->pid;
195 __entry->prio = p->prio;
196 ),
197
198 TP_printk("comm=%s pid=%d prio=%d",
199 __entry->comm, __entry->pid, __entry->prio)
200);
201
202/*
203 * Tracepoint for freeing a task:
204 */
205DEFINE_EVENT(sched_process_template, sched_process_free,
206 TP_PROTO(struct task_struct *p),
207 TP_ARGS(p));
208
209
210/*
211 * Tracepoint for a task exiting:
212 */
213DEFINE_EVENT(sched_process_template, sched_process_exit,
214 TP_PROTO(struct task_struct *p),
215 TP_ARGS(p));
216
217/*
218 * Tracepoint for waiting on task to unschedule:
219 */
220DEFINE_EVENT(sched_process_template, sched_wait_task,
221 TP_PROTO(struct task_struct *p),
222 TP_ARGS(p));
223
224/*
225 * Tracepoint for a waiting task:
226 */
227TRACE_EVENT(sched_process_wait,
228
229 TP_PROTO(struct pid *pid),
230
231 TP_ARGS(pid),
232
233 TP_STRUCT__entry(
234 __array( char, comm, TASK_COMM_LEN )
235 __field( pid_t, pid )
236 __field( int, prio )
237 ),
238
239 TP_fast_assign(
240 memcpy(__entry->comm, current->comm, TASK_COMM_LEN);
241 __entry->pid = pid_nr(pid);
242 __entry->prio = current->prio;
243 ),
244
245 TP_printk("comm=%s pid=%d prio=%d",
246 __entry->comm, __entry->pid, __entry->prio)
247);
248
249/*
250 * Tracepoint for do_fork:
251 */
252TRACE_EVENT(sched_process_fork,
253
254 TP_PROTO(struct task_struct *parent, struct task_struct *child),
255
256 TP_ARGS(parent, child),
257
258 TP_STRUCT__entry(
259 __array( char, parent_comm, TASK_COMM_LEN )
260 __field( pid_t, parent_pid )
261 __array( char, child_comm, TASK_COMM_LEN )
262 __field( pid_t, child_pid )
263 ),
264
265 TP_fast_assign(
266 memcpy(__entry->parent_comm, parent->comm, TASK_COMM_LEN);
267 __entry->parent_pid = parent->pid;
268 memcpy(__entry->child_comm, child->comm, TASK_COMM_LEN);
269 __entry->child_pid = child->pid;
270 ),
271
272 TP_printk("comm=%s pid=%d child_comm=%s child_pid=%d",
273 __entry->parent_comm, __entry->parent_pid,
274 __entry->child_comm, __entry->child_pid)
275);
276
46142a81
PW
277/*
278 * Tracepoint for exec:
279 */
280TRACE_EVENT(sched_process_exec,
281
282 TP_PROTO(struct task_struct *p, pid_t old_pid,
283 struct linux_binprm *bprm),
284
285 TP_ARGS(p, old_pid, bprm),
286
287 TP_STRUCT__entry(
288 __string( filename, bprm->filename )
289 __field( pid_t, pid )
290 __field( pid_t, old_pid )
291 ),
292
293 TP_fast_assign(
294 __assign_str(filename, bprm->filename);
295 __entry->pid = p->pid;
296 __entry->old_pid = old_pid;
297 ),
298
299 TP_printk("filename=%s pid=%d old_pid=%d", __get_str(filename),
300 __entry->pid, __entry->old_pid)
301);
302
f62b389e
MD
303/*
304 * XXX the below sched_stat tracepoints only apply to SCHED_OTHER/BATCH/IDLE
305 * adding sched_stat support to SCHED_FIFO/RR would be welcome.
306 */
307DECLARE_EVENT_CLASS(sched_stat_template,
308
309 TP_PROTO(struct task_struct *tsk, u64 delay),
310
311 TP_ARGS(tsk, delay),
312
313 TP_STRUCT__entry(
314 __array( char, comm, TASK_COMM_LEN )
315 __field( pid_t, pid )
316 __field( u64, delay )
317 ),
318
319 TP_fast_assign(
320 memcpy(__entry->comm, tsk->comm, TASK_COMM_LEN);
321 __entry->pid = tsk->pid;
322 __entry->delay = delay;
323 )
324 TP_perf_assign(
325 __perf_count(delay);
326 ),
327
328 TP_printk("comm=%s pid=%d delay=%Lu [ns]",
329 __entry->comm, __entry->pid,
330 (unsigned long long)__entry->delay)
331);
332
333
334/*
335 * Tracepoint for accounting wait time (time the task is runnable
336 * but not actually running due to scheduler contention).
337 */
338DEFINE_EVENT(sched_stat_template, sched_stat_wait,
339 TP_PROTO(struct task_struct *tsk, u64 delay),
340 TP_ARGS(tsk, delay));
341
342/*
343 * Tracepoint for accounting sleep time (time the task is not runnable,
344 * including iowait, see below).
345 */
346DEFINE_EVENT(sched_stat_template, sched_stat_sleep,
347 TP_PROTO(struct task_struct *tsk, u64 delay),
348 TP_ARGS(tsk, delay));
349
350/*
351 * Tracepoint for accounting iowait time (time the task is not runnable
352 * due to waiting on IO to complete).
353 */
354DEFINE_EVENT(sched_stat_template, sched_stat_iowait,
355 TP_PROTO(struct task_struct *tsk, u64 delay),
356 TP_ARGS(tsk, delay));
357
358/*
359 * Tracepoint for accounting runtime (time the task is executing
360 * on a CPU).
361 */
362TRACE_EVENT(sched_stat_runtime,
363
364 TP_PROTO(struct task_struct *tsk, u64 runtime, u64 vruntime),
365
366 TP_ARGS(tsk, runtime, vruntime),
367
368 TP_STRUCT__entry(
369 __array( char, comm, TASK_COMM_LEN )
370 __field( pid_t, pid )
371 __field( u64, runtime )
372 __field( u64, vruntime )
373 ),
374
375 TP_fast_assign(
376 memcpy(__entry->comm, tsk->comm, TASK_COMM_LEN);
377 __entry->pid = tsk->pid;
378 __entry->runtime = runtime;
379 __entry->vruntime = vruntime;
380 )
381 TP_perf_assign(
382 __perf_count(runtime);
383 ),
384
385 TP_printk("comm=%s pid=%d runtime=%Lu [ns] vruntime=%Lu [ns]",
386 __entry->comm, __entry->pid,
387 (unsigned long long)__entry->runtime,
388 (unsigned long long)__entry->vruntime)
389);
390
391/*
392 * Tracepoint for showing priority inheritance modifying a tasks
393 * priority.
394 */
395TRACE_EVENT(sched_pi_setprio,
396
397 TP_PROTO(struct task_struct *tsk, int newprio),
398
399 TP_ARGS(tsk, newprio),
400
401 TP_STRUCT__entry(
402 __array( char, comm, TASK_COMM_LEN )
403 __field( pid_t, pid )
404 __field( int, oldprio )
405 __field( int, newprio )
406 ),
407
408 TP_fast_assign(
409 memcpy(__entry->comm, tsk->comm, TASK_COMM_LEN);
410 __entry->pid = tsk->pid;
411 __entry->oldprio = tsk->prio;
412 __entry->newprio = newprio;
413 ),
414
415 TP_printk("comm=%s pid=%d oldprio=%d newprio=%d",
416 __entry->comm, __entry->pid,
417 __entry->oldprio, __entry->newprio)
418);
419
420#endif /* _TRACE_SCHED_H */
421
422/* This part must be outside protection */
423#include <trace/define_trace.h>
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