Commit | Line | Data |
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b7cdc182 | 1 | /* SPDX-License-Identifier: GPL-2.0-only */ |
f62b389e MD |
2 | #undef TRACE_SYSTEM |
3 | #define TRACE_SYSTEM sched | |
4 | ||
3bc29f0a MD |
5 | #if !defined(LTTNG_TRACE_SCHED_H) || defined(TRACE_HEADER_MULTI_READ) |
6 | #define LTTNG_TRACE_SCHED_H | |
f62b389e | 7 | |
3b4aafcb | 8 | #include <lttng/tracepoint-event.h> |
f62b389e | 9 | #include <linux/sched.h> |
7bbf55ea | 10 | #include <linux/pid_namespace.h> |
7c68b363 | 11 | #include <linux/binfmts.h> |
5f4c791e MJ |
12 | #include <lttng/kernel-version.h> |
13 | #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,9,0)) | |
090db00e MJ |
14 | #include <linux/sched/rt.h> |
15 | #endif | |
a6cf40a4 | 16 | #include <wrapper/namespace.h> |
7bbf55ea SL |
17 | |
18 | #define LTTNG_MAX_PID_NS_LEVEL 32 | |
19 | ||
f62b389e MD |
20 | #ifndef _TRACE_SCHED_DEF_ |
21 | #define _TRACE_SCHED_DEF_ | |
22 | ||
5f4c791e | 23 | #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,15,0)) |
27e6eda7 GAPG |
24 | |
25 | static inline long __trace_sched_switch_state(bool preempt, struct task_struct *p) | |
26 | { | |
27 | unsigned int state; | |
28 | ||
29 | #ifdef CONFIG_SCHED_DEBUG | |
30 | BUG_ON(p != current); | |
31 | #endif /* CONFIG_SCHED_DEBUG */ | |
32 | ||
33 | /* | |
34 | * Preemption ignores task state, therefore preempted tasks are always | |
35 | * RUNNING (we will not have dequeued if state != RUNNING). | |
36 | */ | |
37 | if (preempt) | |
38 | return TASK_REPORT_MAX; | |
39 | ||
40 | /* | |
41 | * task_state_index() uses fls() and returns a value from 0-8 range. | |
42 | * Decrement it by 1 (except TASK_RUNNING state i.e 0) before using | |
43 | * it for left shift operation to get the correct task->state | |
44 | * mapping. | |
45 | */ | |
46 | state = task_state_index(p); | |
47 | ||
48 | return state ? (1 << (state - 1)) : state; | |
49 | } | |
50 | ||
5f4c791e | 51 | #elif (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,14,0)) |
27e6eda7 GAPG |
52 | |
53 | static inline long __trace_sched_switch_state(bool preempt, struct task_struct *p) | |
54 | { | |
55 | unsigned int state; | |
56 | ||
57 | #ifdef CONFIG_SCHED_DEBUG | |
58 | BUG_ON(p != current); | |
59 | #endif /* CONFIG_SCHED_DEBUG */ | |
60 | ||
61 | /* | |
62 | * Preemption ignores task state, therefore preempted tasks are always | |
63 | * RUNNING (we will not have dequeued if state != RUNNING). | |
64 | */ | |
65 | if (preempt) | |
66 | return TASK_REPORT_MAX; | |
67 | ||
68 | /* | |
69 | * __get_task_state() uses fls() and returns a value from 0-8 range. | |
70 | * Decrement it by 1 (except TASK_RUNNING state i.e 0) before using | |
71 | * it for left shift operation to get the correct task->state | |
72 | * mapping. | |
73 | */ | |
74 | state = __get_task_state(p); | |
75 | ||
76 | return state ? (1 << (state - 1)) : state; | |
77 | } | |
78 | ||
5f4c791e | 79 | #elif (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,4,0)) |
3ee729fe MD |
80 | |
81 | static inline long __trace_sched_switch_state(bool preempt, struct task_struct *p) | |
82 | { | |
83 | #ifdef CONFIG_SCHED_DEBUG | |
84 | BUG_ON(p != current); | |
85 | #endif /* CONFIG_SCHED_DEBUG */ | |
86 | /* | |
87 | * Preemption ignores task state, therefore preempted tasks are always RUNNING | |
88 | * (we will not have dequeued if state != RUNNING). | |
89 | */ | |
90 | return preempt ? TASK_RUNNING | TASK_STATE_MAX : p->state; | |
91 | } | |
92 | ||
5f4c791e | 93 | #elif (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,19,0)) |
857b6f4f MD |
94 | |
95 | static inline long __trace_sched_switch_state(struct task_struct *p) | |
96 | { | |
97 | long state = p->state; | |
98 | ||
99 | #ifdef CONFIG_PREEMPT | |
100 | #ifdef CONFIG_SCHED_DEBUG | |
101 | BUG_ON(p != current); | |
102 | #endif /* CONFIG_SCHED_DEBUG */ | |
103 | /* | |
104 | * For all intents and purposes a preempted task is a running task. | |
105 | */ | |
106 | if (preempt_count() & PREEMPT_ACTIVE) | |
107 | state = TASK_RUNNING | TASK_STATE_MAX; | |
108 | #endif /* CONFIG_PREEMPT */ | |
109 | ||
110 | return state; | |
111 | } | |
112 | ||
5f4c791e | 113 | #elif (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,13,0)) |
33673ee7 MD |
114 | |
115 | static inline long __trace_sched_switch_state(struct task_struct *p) | |
116 | { | |
117 | long state = p->state; | |
118 | ||
119 | #ifdef CONFIG_PREEMPT | |
120 | /* | |
121 | * For all intents and purposes a preempted task is a running task. | |
122 | */ | |
123 | if (task_preempt_count(p) & PREEMPT_ACTIVE) | |
124 | state = TASK_RUNNING | TASK_STATE_MAX; | |
125 | #endif | |
126 | ||
127 | return state; | |
128 | } | |
129 | ||
5f4c791e | 130 | #elif (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,2,0)) |
7c68b363 | 131 | |
f62b389e MD |
132 | static inline long __trace_sched_switch_state(struct task_struct *p) |
133 | { | |
134 | long state = p->state; | |
135 | ||
136 | #ifdef CONFIG_PREEMPT | |
137 | /* | |
138 | * For all intents and purposes a preempted task is a running task. | |
139 | */ | |
140 | if (task_thread_info(p)->preempt_count & PREEMPT_ACTIVE) | |
7c68b363 | 141 | state = TASK_RUNNING | TASK_STATE_MAX; |
7c68b363 | 142 | #endif |
33673ee7 MD |
143 | |
144 | return state; | |
145 | } | |
146 | ||
ead65427 | 147 | #else |
33673ee7 MD |
148 | |
149 | static inline long __trace_sched_switch_state(struct task_struct *p) | |
150 | { | |
151 | long state = p->state; | |
152 | ||
153 | #ifdef CONFIG_PREEMPT | |
154 | /* | |
155 | * For all intents and purposes a preempted task is a running task. | |
156 | */ | |
157 | if (task_thread_info(p)->preempt_count & PREEMPT_ACTIVE) | |
158 | state = TASK_RUNNING; | |
f62b389e MD |
159 | #endif |
160 | ||
161 | return state; | |
162 | } | |
163 | ||
7c68b363 AG |
164 | #endif |
165 | ||
f62b389e MD |
166 | #endif /* _TRACE_SCHED_DEF_ */ |
167 | ||
66853c37 | 168 | #ifdef CONFIG_LTTNG_EXPERIMENTAL_BITWISE_ENUM |
721caea4 GB |
169 | /* |
170 | * Enumeration of the task state bitmask. | |
171 | * Only bit flags are enumerated here, not composition of states. | |
172 | */ | |
173 | LTTNG_TRACEPOINT_ENUM(task_state, | |
174 | TP_ENUM_VALUES( | |
175 | ctf_enum_value("TASK_RUNNING", TASK_RUNNING) | |
176 | ctf_enum_value("TASK_INTERRUPTIBLE", TASK_INTERRUPTIBLE) | |
177 | ctf_enum_value("TASK_UNINTERRUPTIBLE", TASK_UNINTERRUPTIBLE) | |
178 | ctf_enum_value("TASK_STOPPED", __TASK_STOPPED) | |
179 | ctf_enum_value("TASK_TRACED", __TASK_TRACED) | |
180 | ctf_enum_value("EXIT_DEAD", EXIT_DEAD) | |
181 | ctf_enum_value("EXIT_ZOMBIE", EXIT_ZOMBIE) | |
182 | ||
5f4c791e | 183 | #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,9,0)) |
721caea4 | 184 | ctf_enum_value("TASK_PARKED", TASK_PARKED) |
5f4c791e | 185 | #endif /* #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,9,0)) */ |
721caea4 GB |
186 | |
187 | ctf_enum_value("TASK_DEAD", TASK_DEAD) | |
188 | ctf_enum_value("TASK_WAKEKILL", TASK_WAKEKILL) | |
189 | ctf_enum_value("TASK_WAKING", TASK_WAKING) | |
190 | ||
5f4c791e | 191 | #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,2,0)) |
721caea4 | 192 | ctf_enum_value("TASK_NOLOAD", TASK_NOLOAD) |
5f4c791e | 193 | #endif /* #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,2,0)) */ |
721caea4 | 194 | |
5f4c791e | 195 | #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,8,0)) |
721caea4 | 196 | ctf_enum_value("TASK_NEW", TASK_NEW) |
5f4c791e | 197 | #endif /* #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,8,0)) */ |
721caea4 GB |
198 | |
199 | ctf_enum_value("TASK_STATE_MAX", TASK_STATE_MAX) | |
200 | ) | |
201 | ) | |
66853c37 | 202 | #endif /* CONFIG_LTTNG_EXPERIMENTAL_BITWISE_ENUM */ |
721caea4 | 203 | |
f62b389e MD |
204 | /* |
205 | * Tracepoint for calling kthread_stop, performed to end a kthread: | |
206 | */ | |
3bc29f0a | 207 | LTTNG_TRACEPOINT_EVENT(sched_kthread_stop, |
f62b389e MD |
208 | |
209 | TP_PROTO(struct task_struct *t), | |
210 | ||
211 | TP_ARGS(t), | |
212 | ||
f127e61e MD |
213 | TP_FIELDS( |
214 | ctf_array_text(char, comm, t->comm, TASK_COMM_LEN) | |
215 | ctf_integer(pid_t, tid, t->pid) | |
216 | ) | |
f62b389e MD |
217 | ) |
218 | ||
219 | /* | |
220 | * Tracepoint for the return value of the kthread stopping: | |
221 | */ | |
3bc29f0a | 222 | LTTNG_TRACEPOINT_EVENT(sched_kthread_stop_ret, |
f62b389e MD |
223 | |
224 | TP_PROTO(int ret), | |
225 | ||
226 | TP_ARGS(ret), | |
227 | ||
f127e61e MD |
228 | TP_FIELDS( |
229 | ctf_integer(int, ret, ret) | |
230 | ) | |
f62b389e MD |
231 | ) |
232 | ||
233 | /* | |
234 | * Tracepoint for waking up a task: | |
235 | */ | |
5f4c791e | 236 | #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,3,0) || \ |
95ff37b6 MJ |
237 | LTTNG_RT_KERNEL_RANGE(4,1,10,11, 4,2,0,0) || \ |
238 | LTTNG_RT_KERNEL_RANGE(3,18,27,26, 3,19,0,0) || \ | |
239 | LTTNG_RT_KERNEL_RANGE(3,14,61,63, 3,15,0,0) || \ | |
240 | LTTNG_RT_KERNEL_RANGE(3,12,54,73, 3,13,0,0) || \ | |
241 | LTTNG_RT_KERNEL_RANGE(3,10,97,106, 3,11,0,0) || \ | |
242 | LTTNG_RT_KERNEL_RANGE(3,4,110,139, 3,5,0,0) || \ | |
243 | LTTNG_RT_KERNEL_RANGE(3,2,77,111, 3,3,0,0)) | |
ffcf2393 MD |
244 | LTTNG_TRACEPOINT_EVENT_CLASS(sched_wakeup_template, |
245 | ||
246 | TP_PROTO(struct task_struct *p), | |
247 | ||
248 | TP_ARGS(p), | |
249 | ||
250 | TP_FIELDS( | |
251 | ctf_array_text(char, comm, p->comm, TASK_COMM_LEN) | |
252 | ctf_integer(pid_t, tid, p->pid) | |
5aa835c0 | 253 | ctf_integer(int, prio, p->prio - MAX_RT_PRIO) |
ffcf2393 MD |
254 | ctf_integer(int, target_cpu, task_cpu(p)) |
255 | ) | |
256 | ) | |
5f4c791e | 257 | #else /* #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,3,0)) */ |
3bc29f0a | 258 | LTTNG_TRACEPOINT_EVENT_CLASS(sched_wakeup_template, |
f62b389e MD |
259 | |
260 | TP_PROTO(struct task_struct *p, int success), | |
261 | ||
262 | TP_ARGS(p, success), | |
263 | ||
f127e61e MD |
264 | TP_FIELDS( |
265 | ctf_array_text(char, comm, p->comm, TASK_COMM_LEN) | |
266 | ctf_integer(pid_t, tid, p->pid) | |
5aa835c0 | 267 | ctf_integer(int, prio, p->prio - MAX_RT_PRIO) |
f127e61e | 268 | ctf_integer(int, success, success) |
f127e61e | 269 | ctf_integer(int, target_cpu, task_cpu(p)) |
7c68b363 | 270 | ) |
f62b389e | 271 | ) |
5f4c791e | 272 | #endif /* #else #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,3,0)) */ |
f62b389e | 273 | |
5f4c791e | 274 | #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,3,0) || \ |
95ff37b6 MJ |
275 | LTTNG_RT_KERNEL_RANGE(4,1,10,11, 4,2,0,0) || \ |
276 | LTTNG_RT_KERNEL_RANGE(3,18,27,26, 3,19,0,0) || \ | |
277 | LTTNG_RT_KERNEL_RANGE(3,14,61,63, 3,15,0,0) || \ | |
278 | LTTNG_RT_KERNEL_RANGE(3,12,54,73, 3,13,0,0) || \ | |
279 | LTTNG_RT_KERNEL_RANGE(3,10,97,106, 3,11,0,0) || \ | |
280 | LTTNG_RT_KERNEL_RANGE(3,4,110,139, 3,5,0,0) || \ | |
281 | LTTNG_RT_KERNEL_RANGE(3,2,77,111, 3,3,0,0)) | |
ffcf2393 MD |
282 | |
283 | /* | |
284 | * Tracepoint called when waking a task; this tracepoint is guaranteed to be | |
285 | * called from the waking context. | |
286 | */ | |
287 | LTTNG_TRACEPOINT_EVENT_INSTANCE(sched_wakeup_template, sched_waking, | |
288 | TP_PROTO(struct task_struct *p), | |
289 | TP_ARGS(p)) | |
290 | ||
291 | /* | |
292 | * Tracepoint called when the task is actually woken; p->state == TASK_RUNNNG. | |
293 | * It it not always called from the waking context. | |
294 | */ | |
295 | LTTNG_TRACEPOINT_EVENT_INSTANCE(sched_wakeup_template, sched_wakeup, | |
296 | TP_PROTO(struct task_struct *p), | |
297 | TP_ARGS(p)) | |
298 | ||
299 | /* | |
300 | * Tracepoint for waking up a new task: | |
301 | */ | |
302 | LTTNG_TRACEPOINT_EVENT_INSTANCE(sched_wakeup_template, sched_wakeup_new, | |
303 | TP_PROTO(struct task_struct *p), | |
304 | TP_ARGS(p)) | |
305 | ||
ead65427 | 306 | #else |
3a523f5b | 307 | |
3bc29f0a | 308 | LTTNG_TRACEPOINT_EVENT_INSTANCE(sched_wakeup_template, sched_wakeup, |
f62b389e MD |
309 | TP_PROTO(struct task_struct *p, int success), |
310 | TP_ARGS(p, success)) | |
311 | ||
312 | /* | |
313 | * Tracepoint for waking up a new task: | |
314 | */ | |
3bc29f0a | 315 | LTTNG_TRACEPOINT_EVENT_INSTANCE(sched_wakeup_template, sched_wakeup_new, |
f62b389e MD |
316 | TP_PROTO(struct task_struct *p, int success), |
317 | TP_ARGS(p, success)) | |
318 | ||
5f4c791e | 319 | #endif /* #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,3,0)) */ |
3a523f5b | 320 | |
f62b389e MD |
321 | /* |
322 | * Tracepoint for task switches, performed by the scheduler: | |
323 | */ | |
3bc29f0a | 324 | LTTNG_TRACEPOINT_EVENT(sched_switch, |
f62b389e | 325 | |
5f4c791e | 326 | #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,4,0)) |
3ee729fe MD |
327 | TP_PROTO(bool preempt, |
328 | struct task_struct *prev, | |
329 | struct task_struct *next), | |
330 | ||
331 | TP_ARGS(preempt, prev, next), | |
ead65427 | 332 | #else |
f62b389e MD |
333 | TP_PROTO(struct task_struct *prev, |
334 | struct task_struct *next), | |
335 | ||
336 | TP_ARGS(prev, next), | |
5f4c791e | 337 | #endif /* #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,4,0)) */ |
f62b389e | 338 | |
f127e61e MD |
339 | TP_FIELDS( |
340 | ctf_array_text(char, prev_comm, prev->comm, TASK_COMM_LEN) | |
341 | ctf_integer(pid_t, prev_tid, prev->pid) | |
342 | ctf_integer(int, prev_prio, prev->prio - MAX_RT_PRIO) | |
5f4c791e | 343 | #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,4,0)) |
66853c37 | 344 | #ifdef CONFIG_LTTNG_EXPERIMENTAL_BITWISE_ENUM |
721caea4 | 345 | ctf_enum(task_state, long, prev_state, __trace_sched_switch_state(preempt, prev)) |
7c68b363 | 346 | #else |
66853c37 MJ |
347 | ctf_integer(long, prev_state, __trace_sched_switch_state(preempt, prev)) |
348 | #endif | |
349 | #else | |
350 | #ifdef CONFIG_LTTNG_EXPERIMENTAL_BITWISE_ENUM | |
721caea4 | 351 | ctf_enum(task_state, long, prev_state, __trace_sched_switch_state(prev)) |
66853c37 MJ |
352 | #else |
353 | ctf_integer(long, prev_state, __trace_sched_switch_state(prev)) | |
354 | #endif | |
7c68b363 | 355 | #endif |
f127e61e MD |
356 | ctf_array_text(char, next_comm, next->comm, TASK_COMM_LEN) |
357 | ctf_integer(pid_t, next_tid, next->pid) | |
358 | ctf_integer(int, next_prio, next->prio - MAX_RT_PRIO) | |
359 | ) | |
f62b389e MD |
360 | ) |
361 | ||
362 | /* | |
363 | * Tracepoint for a task being migrated: | |
364 | */ | |
3bc29f0a | 365 | LTTNG_TRACEPOINT_EVENT(sched_migrate_task, |
f62b389e MD |
366 | |
367 | TP_PROTO(struct task_struct *p, int dest_cpu), | |
368 | ||
369 | TP_ARGS(p, dest_cpu), | |
370 | ||
f127e61e MD |
371 | TP_FIELDS( |
372 | ctf_array_text(char, comm, p->comm, TASK_COMM_LEN) | |
373 | ctf_integer(pid_t, tid, p->pid) | |
374 | ctf_integer(int, prio, p->prio - MAX_RT_PRIO) | |
375 | ctf_integer(int, orig_cpu, task_cpu(p)) | |
376 | ctf_integer(int, dest_cpu, dest_cpu) | |
377 | ) | |
f62b389e MD |
378 | ) |
379 | ||
3bc29f0a | 380 | LTTNG_TRACEPOINT_EVENT_CLASS(sched_process_template, |
f62b389e MD |
381 | |
382 | TP_PROTO(struct task_struct *p), | |
383 | ||
384 | TP_ARGS(p), | |
385 | ||
f127e61e MD |
386 | TP_FIELDS( |
387 | ctf_array_text(char, comm, p->comm, TASK_COMM_LEN) | |
388 | ctf_integer(pid_t, tid, p->pid) | |
389 | ctf_integer(int, prio, p->prio - MAX_RT_PRIO) | |
390 | ) | |
f62b389e MD |
391 | ) |
392 | ||
393 | /* | |
394 | * Tracepoint for freeing a task: | |
395 | */ | |
3bc29f0a | 396 | LTTNG_TRACEPOINT_EVENT_INSTANCE(sched_process_template, sched_process_free, |
f62b389e MD |
397 | TP_PROTO(struct task_struct *p), |
398 | TP_ARGS(p)) | |
216b6baa | 399 | |
f62b389e MD |
400 | |
401 | /* | |
402 | * Tracepoint for a task exiting: | |
403 | */ | |
3bc29f0a | 404 | LTTNG_TRACEPOINT_EVENT_INSTANCE(sched_process_template, sched_process_exit, |
f62b389e MD |
405 | TP_PROTO(struct task_struct *p), |
406 | TP_ARGS(p)) | |
407 | ||
408 | /* | |
409 | * Tracepoint for waiting on task to unschedule: | |
410 | */ | |
3bc29f0a | 411 | LTTNG_TRACEPOINT_EVENT_INSTANCE(sched_process_template, sched_wait_task, |
f62b389e MD |
412 | TP_PROTO(struct task_struct *p), |
413 | TP_ARGS(p)) | |
414 | ||
415 | /* | |
416 | * Tracepoint for a waiting task: | |
417 | */ | |
3bc29f0a | 418 | LTTNG_TRACEPOINT_EVENT(sched_process_wait, |
f62b389e MD |
419 | |
420 | TP_PROTO(struct pid *pid), | |
421 | ||
422 | TP_ARGS(pid), | |
423 | ||
f127e61e MD |
424 | TP_FIELDS( |
425 | ctf_array_text(char, comm, current->comm, TASK_COMM_LEN) | |
426 | ctf_integer(pid_t, tid, pid_nr(pid)) | |
427 | ctf_integer(int, prio, current->prio - MAX_RT_PRIO) | |
428 | ) | |
f62b389e MD |
429 | ) |
430 | ||
431 | /* | |
79b18ef7 MD |
432 | * Tracepoint for do_fork. |
433 | * Saving both TID and PID information, especially for the child, allows | |
434 | * trace analyzers to distinguish between creation of a new process and | |
435 | * creation of a new thread. Newly created processes will have child_tid | |
436 | * == child_pid, while creation of a thread yields to child_tid != | |
437 | * child_pid. | |
f62b389e | 438 | */ |
7bbf55ea | 439 | LTTNG_TRACEPOINT_EVENT_CODE(sched_process_fork, |
f62b389e MD |
440 | |
441 | TP_PROTO(struct task_struct *parent, struct task_struct *child), | |
442 | ||
443 | TP_ARGS(parent, child), | |
444 | ||
7bbf55ea SL |
445 | TP_locvar( |
446 | pid_t vtids[LTTNG_MAX_PID_NS_LEVEL]; | |
447 | unsigned int ns_level; | |
448 | ), | |
449 | ||
265822ae | 450 | TP_code_pre( |
7bbf55ea SL |
451 | if (child) { |
452 | struct pid *child_pid; | |
453 | unsigned int i; | |
454 | ||
455 | child_pid = task_pid(child); | |
456 | tp_locvar->ns_level = | |
457 | min_t(unsigned int, child_pid->level + 1, | |
458 | LTTNG_MAX_PID_NS_LEVEL); | |
459 | for (i = 0; i < tp_locvar->ns_level; i++) | |
460 | tp_locvar->vtids[i] = child_pid->numbers[i].nr; | |
461 | } | |
462 | ), | |
463 | ||
f127e61e MD |
464 | TP_FIELDS( |
465 | ctf_array_text(char, parent_comm, parent->comm, TASK_COMM_LEN) | |
466 | ctf_integer(pid_t, parent_tid, parent->pid) | |
467 | ctf_integer(pid_t, parent_pid, parent->tgid) | |
5f4c791e | 468 | #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,8,0)) |
7bbf55ea SL |
469 | ctf_integer(unsigned int, parent_ns_inum, |
470 | ({ | |
471 | unsigned int parent_ns_inum = 0; | |
472 | ||
473 | if (parent) { | |
474 | struct pid_namespace *pid_ns; | |
475 | ||
476 | pid_ns = task_active_pid_ns(parent); | |
477 | if (pid_ns) | |
478 | parent_ns_inum = | |
a6cf40a4 | 479 | pid_ns->lttng_ns_inum; |
7bbf55ea SL |
480 | } |
481 | parent_ns_inum; | |
482 | })) | |
483 | #endif | |
f127e61e MD |
484 | ctf_array_text(char, child_comm, child->comm, TASK_COMM_LEN) |
485 | ctf_integer(pid_t, child_tid, child->pid) | |
7bbf55ea | 486 | ctf_sequence(pid_t, vtids, tp_locvar->vtids, u8, tp_locvar->ns_level) |
f127e61e | 487 | ctf_integer(pid_t, child_pid, child->tgid) |
5f4c791e | 488 | #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,8,0)) |
7bbf55ea SL |
489 | ctf_integer(unsigned int, child_ns_inum, |
490 | ({ | |
491 | unsigned int child_ns_inum = 0; | |
492 | ||
493 | if (child) { | |
494 | struct pid_namespace *pid_ns; | |
495 | ||
496 | pid_ns = task_active_pid_ns(child); | |
497 | if (pid_ns) | |
498 | child_ns_inum = | |
a6cf40a4 | 499 | pid_ns->lttng_ns_inum; |
7bbf55ea SL |
500 | } |
501 | child_ns_inum; | |
502 | })) | |
503 | #endif | |
265822ae MD |
504 | ), |
505 | ||
506 | TP_code_post() | |
f62b389e MD |
507 | ) |
508 | ||
5f4c791e | 509 | #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,4,0)) |
46142a81 PW |
510 | /* |
511 | * Tracepoint for exec: | |
512 | */ | |
3bc29f0a | 513 | LTTNG_TRACEPOINT_EVENT(sched_process_exec, |
46142a81 PW |
514 | |
515 | TP_PROTO(struct task_struct *p, pid_t old_pid, | |
516 | struct linux_binprm *bprm), | |
517 | ||
518 | TP_ARGS(p, old_pid, bprm), | |
519 | ||
f127e61e MD |
520 | TP_FIELDS( |
521 | ctf_string(filename, bprm->filename) | |
522 | ctf_integer(pid_t, tid, p->pid) | |
523 | ctf_integer(pid_t, old_tid, old_pid) | |
524 | ) | |
46142a81 | 525 | ) |
c94b2508 | 526 | #endif |
46142a81 | 527 | |
f62b389e MD |
528 | /* |
529 | * XXX the below sched_stat tracepoints only apply to SCHED_OTHER/BATCH/IDLE | |
530 | * adding sched_stat support to SCHED_FIFO/RR would be welcome. | |
531 | */ | |
3bc29f0a | 532 | LTTNG_TRACEPOINT_EVENT_CLASS(sched_stat_template, |
f62b389e MD |
533 | |
534 | TP_PROTO(struct task_struct *tsk, u64 delay), | |
535 | ||
536 | TP_ARGS(tsk, delay), | |
537 | ||
f127e61e MD |
538 | TP_FIELDS( |
539 | ctf_array_text(char, comm, tsk->comm, TASK_COMM_LEN) | |
540 | ctf_integer(pid_t, tid, tsk->pid) | |
541 | ctf_integer(u64, delay, delay) | |
f62b389e | 542 | ) |
f62b389e MD |
543 | ) |
544 | ||
545 | ||
546 | /* | |
547 | * Tracepoint for accounting wait time (time the task is runnable | |
548 | * but not actually running due to scheduler contention). | |
549 | */ | |
3bc29f0a | 550 | LTTNG_TRACEPOINT_EVENT_INSTANCE(sched_stat_template, sched_stat_wait, |
f62b389e MD |
551 | TP_PROTO(struct task_struct *tsk, u64 delay), |
552 | TP_ARGS(tsk, delay)) | |
553 | ||
554 | /* | |
555 | * Tracepoint for accounting sleep time (time the task is not runnable, | |
556 | * including iowait, see below). | |
557 | */ | |
3bc29f0a | 558 | LTTNG_TRACEPOINT_EVENT_INSTANCE(sched_stat_template, sched_stat_sleep, |
f62b389e MD |
559 | TP_PROTO(struct task_struct *tsk, u64 delay), |
560 | TP_ARGS(tsk, delay)) | |
561 | ||
562 | /* | |
563 | * Tracepoint for accounting iowait time (time the task is not runnable | |
564 | * due to waiting on IO to complete). | |
565 | */ | |
3bc29f0a | 566 | LTTNG_TRACEPOINT_EVENT_INSTANCE(sched_stat_template, sched_stat_iowait, |
f62b389e MD |
567 | TP_PROTO(struct task_struct *tsk, u64 delay), |
568 | TP_ARGS(tsk, delay)) | |
569 | ||
5f4c791e | 570 | #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,3,0)) |
7c68b363 AG |
571 | /* |
572 | * Tracepoint for accounting blocked time (time the task is in uninterruptible). | |
573 | */ | |
3bc29f0a | 574 | LTTNG_TRACEPOINT_EVENT_INSTANCE(sched_stat_template, sched_stat_blocked, |
7c68b363 AG |
575 | TP_PROTO(struct task_struct *tsk, u64 delay), |
576 | TP_ARGS(tsk, delay)) | |
577 | #endif | |
578 | ||
f62b389e MD |
579 | /* |
580 | * Tracepoint for accounting runtime (time the task is executing | |
581 | * on a CPU). | |
582 | */ | |
3bc29f0a | 583 | LTTNG_TRACEPOINT_EVENT(sched_stat_runtime, |
f62b389e MD |
584 | |
585 | TP_PROTO(struct task_struct *tsk, u64 runtime, u64 vruntime), | |
586 | ||
587 | TP_ARGS(tsk, runtime, vruntime), | |
588 | ||
f127e61e MD |
589 | TP_FIELDS( |
590 | ctf_array_text(char, comm, tsk->comm, TASK_COMM_LEN) | |
591 | ctf_integer(pid_t, tid, tsk->pid) | |
592 | ctf_integer(u64, runtime, runtime) | |
593 | ctf_integer(u64, vruntime, vruntime) | |
f62b389e | 594 | ) |
f62b389e MD |
595 | ) |
596 | ||
5f4c791e | 597 | #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,12,0) || \ |
46dded2d MJ |
598 | LTTNG_RT_KERNEL_RANGE(4,9,27,18, 4,10,0,0) || \ |
599 | LTTNG_RT_KERNEL_RANGE(4,11,5,1, 4,12,0,0)) | |
673e9a03 MJ |
600 | /* |
601 | * Tracepoint for showing priority inheritance modifying a tasks | |
602 | * priority. | |
603 | */ | |
604 | LTTNG_TRACEPOINT_EVENT(sched_pi_setprio, | |
605 | ||
606 | TP_PROTO(struct task_struct *tsk, struct task_struct *pi_task), | |
607 | ||
608 | TP_ARGS(tsk, pi_task), | |
609 | ||
610 | TP_FIELDS( | |
611 | ctf_array_text(char, comm, tsk->comm, TASK_COMM_LEN) | |
612 | ctf_integer(pid_t, tid, tsk->pid) | |
613 | ctf_integer(int, oldprio, tsk->prio - MAX_RT_PRIO) | |
614 | ctf_integer(int, newprio, pi_task ? pi_task->prio - MAX_RT_PRIO : tsk->prio - MAX_RT_PRIO) | |
615 | ) | |
616 | ) | |
ead65427 | 617 | #else |
f62b389e MD |
618 | /* |
619 | * Tracepoint for showing priority inheritance modifying a tasks | |
620 | * priority. | |
621 | */ | |
3bc29f0a | 622 | LTTNG_TRACEPOINT_EVENT(sched_pi_setprio, |
f62b389e MD |
623 | |
624 | TP_PROTO(struct task_struct *tsk, int newprio), | |
625 | ||
626 | TP_ARGS(tsk, newprio), | |
627 | ||
f127e61e MD |
628 | TP_FIELDS( |
629 | ctf_array_text(char, comm, tsk->comm, TASK_COMM_LEN) | |
630 | ctf_integer(pid_t, tid, tsk->pid) | |
631 | ctf_integer(int, oldprio, tsk->prio - MAX_RT_PRIO) | |
632 | ctf_integer(int, newprio, newprio - MAX_RT_PRIO) | |
633 | ) | |
f62b389e | 634 | ) |
7c68b363 | 635 | #endif |
f62b389e | 636 | |
3bc29f0a | 637 | #endif /* LTTNG_TRACE_SCHED_H */ |
f62b389e MD |
638 | |
639 | /* This part must be outside protection */ | |
3b4aafcb | 640 | #include <lttng/define_trace.h> |