Commit | Line | Data |
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9f36eaed | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
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 | |
6ec43db8 | 8 | #include <probes/lttng-tracepoint-event.h> |
f62b389e | 9 | #include <linux/sched.h> |
7bbf55ea | 10 | #include <linux/pid_namespace.h> |
7c68b363 | 11 | #include <linux/binfmts.h> |
2d042821 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 | ||
edee4485 MJ |
23 | #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(5,18,0) \ |
24 | || LTTNG_RHEL_KERNEL_RANGE(5,14,0,162,0,0, 5,15,0,0,0,0)) | |
7b023c37 MJ |
25 | |
26 | static inline long __trace_sched_switch_state(bool preempt, | |
27 | unsigned int prev_state, | |
28 | struct task_struct *p) | |
29 | { | |
30 | unsigned int state; | |
31 | ||
32 | #ifdef CONFIG_SCHED_DEBUG | |
33 | BUG_ON(p != current); | |
34 | #endif /* CONFIG_SCHED_DEBUG */ | |
35 | ||
36 | /* | |
37 | * Preemption ignores task state, therefore preempted tasks are always | |
38 | * RUNNING (we will not have dequeued if state != RUNNING). | |
39 | */ | |
40 | if (preempt) | |
41 | return TASK_REPORT_MAX; | |
42 | ||
43 | /* | |
44 | * task_state_index() uses fls() and returns a value from 0-8 range. | |
45 | * Decrement it by 1 (except TASK_RUNNING state i.e 0) before using | |
46 | * it for left shift operation to get the correct task->state | |
47 | * mapping. | |
48 | */ | |
49 | state = __task_state_index(prev_state, p->exit_state); | |
50 | ||
51 | return state ? (1 << (state - 1)) : state; | |
52 | } | |
53 | ||
54 | #elif (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,15,0)) | |
27e6eda7 GAPG |
55 | |
56 | static inline long __trace_sched_switch_state(bool preempt, struct task_struct *p) | |
57 | { | |
58 | unsigned int state; | |
59 | ||
60 | #ifdef CONFIG_SCHED_DEBUG | |
61 | BUG_ON(p != current); | |
62 | #endif /* CONFIG_SCHED_DEBUG */ | |
63 | ||
64 | /* | |
65 | * Preemption ignores task state, therefore preempted tasks are always | |
66 | * RUNNING (we will not have dequeued if state != RUNNING). | |
67 | */ | |
68 | if (preempt) | |
69 | return TASK_REPORT_MAX; | |
70 | ||
71 | /* | |
72 | * task_state_index() uses fls() and returns a value from 0-8 range. | |
73 | * Decrement it by 1 (except TASK_RUNNING state i.e 0) before using | |
74 | * it for left shift operation to get the correct task->state | |
75 | * mapping. | |
76 | */ | |
77 | state = task_state_index(p); | |
78 | ||
79 | return state ? (1 << (state - 1)) : state; | |
80 | } | |
81 | ||
2d042821 | 82 | #elif (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,14,0)) |
27e6eda7 GAPG |
83 | |
84 | static inline long __trace_sched_switch_state(bool preempt, struct task_struct *p) | |
85 | { | |
86 | unsigned int state; | |
87 | ||
88 | #ifdef CONFIG_SCHED_DEBUG | |
89 | BUG_ON(p != current); | |
90 | #endif /* CONFIG_SCHED_DEBUG */ | |
91 | ||
92 | /* | |
93 | * Preemption ignores task state, therefore preempted tasks are always | |
94 | * RUNNING (we will not have dequeued if state != RUNNING). | |
95 | */ | |
96 | if (preempt) | |
97 | return TASK_REPORT_MAX; | |
98 | ||
99 | /* | |
100 | * __get_task_state() uses fls() and returns a value from 0-8 range. | |
101 | * Decrement it by 1 (except TASK_RUNNING state i.e 0) before using | |
102 | * it for left shift operation to get the correct task->state | |
103 | * mapping. | |
104 | */ | |
105 | state = __get_task_state(p); | |
106 | ||
107 | return state ? (1 << (state - 1)) : state; | |
108 | } | |
109 | ||
2d042821 | 110 | #elif (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,4,0)) |
3ee729fe MD |
111 | |
112 | static inline long __trace_sched_switch_state(bool preempt, struct task_struct *p) | |
113 | { | |
114 | #ifdef CONFIG_SCHED_DEBUG | |
115 | BUG_ON(p != current); | |
116 | #endif /* CONFIG_SCHED_DEBUG */ | |
117 | /* | |
118 | * Preemption ignores task state, therefore preempted tasks are always RUNNING | |
119 | * (we will not have dequeued if state != RUNNING). | |
120 | */ | |
121 | return preempt ? TASK_RUNNING | TASK_STATE_MAX : p->state; | |
122 | } | |
123 | ||
2d042821 | 124 | #elif (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,19,0)) |
857b6f4f MD |
125 | |
126 | static inline long __trace_sched_switch_state(struct task_struct *p) | |
127 | { | |
128 | long state = p->state; | |
129 | ||
130 | #ifdef CONFIG_PREEMPT | |
131 | #ifdef CONFIG_SCHED_DEBUG | |
132 | BUG_ON(p != current); | |
133 | #endif /* CONFIG_SCHED_DEBUG */ | |
134 | /* | |
135 | * For all intents and purposes a preempted task is a running task. | |
136 | */ | |
137 | if (preempt_count() & PREEMPT_ACTIVE) | |
138 | state = TASK_RUNNING | TASK_STATE_MAX; | |
139 | #endif /* CONFIG_PREEMPT */ | |
140 | ||
141 | return state; | |
142 | } | |
143 | ||
2d042821 | 144 | #elif (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,13,0)) |
33673ee7 MD |
145 | |
146 | static inline long __trace_sched_switch_state(struct task_struct *p) | |
147 | { | |
148 | long state = p->state; | |
149 | ||
150 | #ifdef CONFIG_PREEMPT | |
151 | /* | |
152 | * For all intents and purposes a preempted task is a running task. | |
153 | */ | |
154 | if (task_preempt_count(p) & PREEMPT_ACTIVE) | |
155 | state = TASK_RUNNING | TASK_STATE_MAX; | |
156 | #endif | |
157 | ||
158 | return state; | |
159 | } | |
160 | ||
2d042821 | 161 | #elif (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,2,0)) |
7c68b363 | 162 | |
f62b389e MD |
163 | static inline long __trace_sched_switch_state(struct task_struct *p) |
164 | { | |
165 | long state = p->state; | |
166 | ||
167 | #ifdef CONFIG_PREEMPT | |
168 | /* | |
169 | * For all intents and purposes a preempted task is a running task. | |
170 | */ | |
171 | if (task_thread_info(p)->preempt_count & PREEMPT_ACTIVE) | |
7c68b363 | 172 | state = TASK_RUNNING | TASK_STATE_MAX; |
7c68b363 | 173 | #endif |
33673ee7 MD |
174 | |
175 | return state; | |
176 | } | |
177 | ||
ead65427 | 178 | #else |
33673ee7 MD |
179 | |
180 | static inline long __trace_sched_switch_state(struct task_struct *p) | |
181 | { | |
182 | long state = p->state; | |
183 | ||
184 | #ifdef CONFIG_PREEMPT | |
185 | /* | |
186 | * For all intents and purposes a preempted task is a running task. | |
187 | */ | |
188 | if (task_thread_info(p)->preempt_count & PREEMPT_ACTIVE) | |
189 | state = TASK_RUNNING; | |
f62b389e MD |
190 | #endif |
191 | ||
192 | return state; | |
193 | } | |
194 | ||
7c68b363 AG |
195 | #endif |
196 | ||
f62b389e MD |
197 | #endif /* _TRACE_SCHED_DEF_ */ |
198 | ||
4ac46085 | 199 | #ifdef CONFIG_LTTNG_EXPERIMENTAL_BITWISE_ENUM |
4a8e5611 GB |
200 | /* |
201 | * Enumeration of the task state bitmask. | |
202 | * Only bit flags are enumerated here, not composition of states. | |
203 | */ | |
204 | LTTNG_TRACEPOINT_ENUM(task_state, | |
205 | TP_ENUM_VALUES( | |
206 | ctf_enum_value("TASK_RUNNING", TASK_RUNNING) | |
207 | ctf_enum_value("TASK_INTERRUPTIBLE", TASK_INTERRUPTIBLE) | |
208 | ctf_enum_value("TASK_UNINTERRUPTIBLE", TASK_UNINTERRUPTIBLE) | |
209 | ctf_enum_value("TASK_STOPPED", __TASK_STOPPED) | |
210 | ctf_enum_value("TASK_TRACED", __TASK_TRACED) | |
211 | ctf_enum_value("EXIT_DEAD", EXIT_DEAD) | |
212 | ctf_enum_value("EXIT_ZOMBIE", EXIT_ZOMBIE) | |
213 | ||
2d042821 | 214 | #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,9,0)) |
4a8e5611 | 215 | ctf_enum_value("TASK_PARKED", TASK_PARKED) |
2d042821 | 216 | #endif /* #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,9,0)) */ |
4a8e5611 GB |
217 | |
218 | ctf_enum_value("TASK_DEAD", TASK_DEAD) | |
219 | ctf_enum_value("TASK_WAKEKILL", TASK_WAKEKILL) | |
220 | ctf_enum_value("TASK_WAKING", TASK_WAKING) | |
221 | ||
2d042821 | 222 | #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,2,0)) |
4a8e5611 | 223 | ctf_enum_value("TASK_NOLOAD", TASK_NOLOAD) |
2d042821 | 224 | #endif /* #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,2,0)) */ |
4a8e5611 | 225 | |
2d042821 | 226 | #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,8,0)) |
4a8e5611 | 227 | ctf_enum_value("TASK_NEW", TASK_NEW) |
2d042821 | 228 | #endif /* #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,8,0)) */ |
4a8e5611 GB |
229 | |
230 | ctf_enum_value("TASK_STATE_MAX", TASK_STATE_MAX) | |
231 | ) | |
232 | ) | |
4ac46085 | 233 | #endif /* CONFIG_LTTNG_EXPERIMENTAL_BITWISE_ENUM */ |
4a8e5611 | 234 | |
f62b389e MD |
235 | /* |
236 | * Tracepoint for calling kthread_stop, performed to end a kthread: | |
237 | */ | |
3bc29f0a | 238 | LTTNG_TRACEPOINT_EVENT(sched_kthread_stop, |
f62b389e MD |
239 | |
240 | TP_PROTO(struct task_struct *t), | |
241 | ||
242 | TP_ARGS(t), | |
243 | ||
f127e61e MD |
244 | TP_FIELDS( |
245 | ctf_array_text(char, comm, t->comm, TASK_COMM_LEN) | |
246 | ctf_integer(pid_t, tid, t->pid) | |
247 | ) | |
f62b389e MD |
248 | ) |
249 | ||
250 | /* | |
251 | * Tracepoint for the return value of the kthread stopping: | |
252 | */ | |
3bc29f0a | 253 | LTTNG_TRACEPOINT_EVENT(sched_kthread_stop_ret, |
f62b389e MD |
254 | |
255 | TP_PROTO(int ret), | |
256 | ||
257 | TP_ARGS(ret), | |
258 | ||
f127e61e MD |
259 | TP_FIELDS( |
260 | ctf_integer(int, ret, ret) | |
261 | ) | |
f62b389e MD |
262 | ) |
263 | ||
264 | /* | |
265 | * Tracepoint for waking up a task: | |
266 | */ | |
2d042821 | 267 | #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,3,0) || \ |
95ff37b6 MJ |
268 | LTTNG_RT_KERNEL_RANGE(4,1,10,11, 4,2,0,0) || \ |
269 | LTTNG_RT_KERNEL_RANGE(3,18,27,26, 3,19,0,0) || \ | |
270 | LTTNG_RT_KERNEL_RANGE(3,14,61,63, 3,15,0,0) || \ | |
271 | LTTNG_RT_KERNEL_RANGE(3,12,54,73, 3,13,0,0) || \ | |
272 | LTTNG_RT_KERNEL_RANGE(3,10,97,106, 3,11,0,0) || \ | |
273 | LTTNG_RT_KERNEL_RANGE(3,4,110,139, 3,5,0,0) || \ | |
274 | LTTNG_RT_KERNEL_RANGE(3,2,77,111, 3,3,0,0)) | |
ffcf2393 MD |
275 | LTTNG_TRACEPOINT_EVENT_CLASS(sched_wakeup_template, |
276 | ||
277 | TP_PROTO(struct task_struct *p), | |
278 | ||
279 | TP_ARGS(p), | |
280 | ||
281 | TP_FIELDS( | |
282 | ctf_array_text(char, comm, p->comm, TASK_COMM_LEN) | |
283 | ctf_integer(pid_t, tid, p->pid) | |
5aa835c0 | 284 | ctf_integer(int, prio, p->prio - MAX_RT_PRIO) |
ffcf2393 MD |
285 | ctf_integer(int, target_cpu, task_cpu(p)) |
286 | ) | |
287 | ) | |
2d042821 | 288 | #else /* #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,3,0)) */ |
3bc29f0a | 289 | LTTNG_TRACEPOINT_EVENT_CLASS(sched_wakeup_template, |
f62b389e MD |
290 | |
291 | TP_PROTO(struct task_struct *p, int success), | |
292 | ||
293 | TP_ARGS(p, success), | |
294 | ||
f127e61e MD |
295 | TP_FIELDS( |
296 | ctf_array_text(char, comm, p->comm, TASK_COMM_LEN) | |
297 | ctf_integer(pid_t, tid, p->pid) | |
5aa835c0 | 298 | ctf_integer(int, prio, p->prio - MAX_RT_PRIO) |
f127e61e | 299 | ctf_integer(int, success, success) |
f127e61e | 300 | ctf_integer(int, target_cpu, task_cpu(p)) |
7c68b363 | 301 | ) |
f62b389e | 302 | ) |
2d042821 | 303 | #endif /* #else #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,3,0)) */ |
f62b389e | 304 | |
2d042821 | 305 | #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,3,0) || \ |
95ff37b6 MJ |
306 | LTTNG_RT_KERNEL_RANGE(4,1,10,11, 4,2,0,0) || \ |
307 | LTTNG_RT_KERNEL_RANGE(3,18,27,26, 3,19,0,0) || \ | |
308 | LTTNG_RT_KERNEL_RANGE(3,14,61,63, 3,15,0,0) || \ | |
309 | LTTNG_RT_KERNEL_RANGE(3,12,54,73, 3,13,0,0) || \ | |
310 | LTTNG_RT_KERNEL_RANGE(3,10,97,106, 3,11,0,0) || \ | |
311 | LTTNG_RT_KERNEL_RANGE(3,4,110,139, 3,5,0,0) || \ | |
312 | LTTNG_RT_KERNEL_RANGE(3,2,77,111, 3,3,0,0)) | |
ffcf2393 MD |
313 | |
314 | /* | |
315 | * Tracepoint called when waking a task; this tracepoint is guaranteed to be | |
316 | * called from the waking context. | |
317 | */ | |
318 | LTTNG_TRACEPOINT_EVENT_INSTANCE(sched_wakeup_template, sched_waking, | |
319 | TP_PROTO(struct task_struct *p), | |
320 | TP_ARGS(p)) | |
321 | ||
322 | /* | |
323 | * Tracepoint called when the task is actually woken; p->state == TASK_RUNNNG. | |
324 | * It it not always called from the waking context. | |
325 | */ | |
326 | LTTNG_TRACEPOINT_EVENT_INSTANCE(sched_wakeup_template, sched_wakeup, | |
327 | TP_PROTO(struct task_struct *p), | |
328 | TP_ARGS(p)) | |
329 | ||
330 | /* | |
331 | * Tracepoint for waking up a new task: | |
332 | */ | |
333 | LTTNG_TRACEPOINT_EVENT_INSTANCE(sched_wakeup_template, sched_wakeup_new, | |
334 | TP_PROTO(struct task_struct *p), | |
335 | TP_ARGS(p)) | |
336 | ||
ead65427 | 337 | #else |
3a523f5b | 338 | |
3bc29f0a | 339 | LTTNG_TRACEPOINT_EVENT_INSTANCE(sched_wakeup_template, sched_wakeup, |
f62b389e MD |
340 | TP_PROTO(struct task_struct *p, int success), |
341 | TP_ARGS(p, success)) | |
342 | ||
343 | /* | |
344 | * Tracepoint for waking up a new task: | |
345 | */ | |
3bc29f0a | 346 | LTTNG_TRACEPOINT_EVENT_INSTANCE(sched_wakeup_template, sched_wakeup_new, |
f62b389e MD |
347 | TP_PROTO(struct task_struct *p, int success), |
348 | TP_ARGS(p, success)) | |
349 | ||
2d042821 | 350 | #endif /* #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,3,0)) */ |
3a523f5b | 351 | |
f62b389e MD |
352 | /* |
353 | * Tracepoint for task switches, performed by the scheduler: | |
354 | */ | |
7b023c37 | 355 | |
edee4485 MJ |
356 | #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(5,18,0) \ |
357 | || LTTNG_RHEL_KERNEL_RANGE(5,14,0,162,0,0, 5,15,0,0,0,0)) | |
3bc29f0a | 358 | LTTNG_TRACEPOINT_EVENT(sched_switch, |
f62b389e | 359 | |
3ee729fe | 360 | TP_PROTO(bool preempt, |
7b023c37 | 361 | struct task_struct *prev, |
10ccd432 MJ |
362 | struct task_struct *next, |
363 | unsigned int prev_state), | |
3ee729fe | 364 | |
10ccd432 | 365 | TP_ARGS(preempt, prev, next, prev_state), |
7b023c37 MJ |
366 | |
367 | TP_FIELDS( | |
368 | ctf_array_text(char, prev_comm, prev->comm, TASK_COMM_LEN) | |
369 | ctf_integer(pid_t, prev_tid, prev->pid) | |
370 | ctf_integer(int, prev_prio, prev->prio - MAX_RT_PRIO) | |
371 | #ifdef CONFIG_LTTNG_EXPERIMENTAL_BITWISE_ENUM | |
372 | ctf_enum(task_state, long, prev_state, __trace_sched_switch_state(preempt, prev_state, prev)) | |
ead65427 | 373 | #else |
7b023c37 MJ |
374 | ctf_integer(long, prev_state, __trace_sched_switch_state(preempt, prev_state, prev)) |
375 | #endif | |
376 | ctf_array_text(char, next_comm, next->comm, TASK_COMM_LEN) | |
377 | ctf_integer(pid_t, next_tid, next->pid) | |
378 | ctf_integer(int, next_prio, next->prio - MAX_RT_PRIO) | |
379 | ) | |
380 | ) | |
381 | ||
382 | #elif (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,4,0)) | |
383 | ||
384 | LTTNG_TRACEPOINT_EVENT(sched_switch, | |
385 | ||
386 | TP_PROTO(bool preempt, | |
387 | struct task_struct *prev, | |
f62b389e MD |
388 | struct task_struct *next), |
389 | ||
7b023c37 | 390 | TP_ARGS(preempt, prev, next), |
f62b389e | 391 | |
f127e61e MD |
392 | TP_FIELDS( |
393 | ctf_array_text(char, prev_comm, prev->comm, TASK_COMM_LEN) | |
394 | ctf_integer(pid_t, prev_tid, prev->pid) | |
395 | ctf_integer(int, prev_prio, prev->prio - MAX_RT_PRIO) | |
4ac46085 | 396 | #ifdef CONFIG_LTTNG_EXPERIMENTAL_BITWISE_ENUM |
4a8e5611 | 397 | ctf_enum(task_state, long, prev_state, __trace_sched_switch_state(preempt, prev)) |
7c68b363 | 398 | #else |
4ac46085 MJ |
399 | ctf_integer(long, prev_state, __trace_sched_switch_state(preempt, prev)) |
400 | #endif | |
7b023c37 MJ |
401 | ctf_array_text(char, next_comm, next->comm, TASK_COMM_LEN) |
402 | ctf_integer(pid_t, next_tid, next->pid) | |
403 | ctf_integer(int, next_prio, next->prio - MAX_RT_PRIO) | |
404 | ) | |
405 | ) | |
406 | ||
4ac46085 | 407 | #else |
7b023c37 MJ |
408 | |
409 | LTTNG_TRACEPOINT_EVENT(sched_switch, | |
410 | ||
411 | TP_PROTO(struct task_struct *prev, | |
412 | struct task_struct *next), | |
413 | ||
414 | TP_ARGS(prev, next), | |
415 | ||
416 | TP_FIELDS( | |
417 | ctf_array_text(char, prev_comm, prev->comm, TASK_COMM_LEN) | |
418 | ctf_integer(pid_t, prev_tid, prev->pid) | |
419 | ctf_integer(int, prev_prio, prev->prio - MAX_RT_PRIO) | |
4ac46085 | 420 | #ifdef CONFIG_LTTNG_EXPERIMENTAL_BITWISE_ENUM |
4a8e5611 | 421 | ctf_enum(task_state, long, prev_state, __trace_sched_switch_state(prev)) |
4ac46085 MJ |
422 | #else |
423 | ctf_integer(long, prev_state, __trace_sched_switch_state(prev)) | |
7c68b363 | 424 | #endif |
f127e61e MD |
425 | ctf_array_text(char, next_comm, next->comm, TASK_COMM_LEN) |
426 | ctf_integer(pid_t, next_tid, next->pid) | |
427 | ctf_integer(int, next_prio, next->prio - MAX_RT_PRIO) | |
428 | ) | |
f62b389e | 429 | ) |
7b023c37 | 430 | #endif |
f62b389e MD |
431 | |
432 | /* | |
433 | * Tracepoint for a task being migrated: | |
434 | */ | |
3bc29f0a | 435 | LTTNG_TRACEPOINT_EVENT(sched_migrate_task, |
f62b389e MD |
436 | |
437 | TP_PROTO(struct task_struct *p, int dest_cpu), | |
438 | ||
439 | TP_ARGS(p, dest_cpu), | |
440 | ||
f127e61e MD |
441 | TP_FIELDS( |
442 | ctf_array_text(char, comm, p->comm, TASK_COMM_LEN) | |
443 | ctf_integer(pid_t, tid, p->pid) | |
444 | ctf_integer(int, prio, p->prio - MAX_RT_PRIO) | |
445 | ctf_integer(int, orig_cpu, task_cpu(p)) | |
446 | ctf_integer(int, dest_cpu, dest_cpu) | |
447 | ) | |
f62b389e MD |
448 | ) |
449 | ||
3bc29f0a | 450 | LTTNG_TRACEPOINT_EVENT_CLASS(sched_process_template, |
f62b389e MD |
451 | |
452 | TP_PROTO(struct task_struct *p), | |
453 | ||
454 | TP_ARGS(p), | |
455 | ||
f127e61e MD |
456 | TP_FIELDS( |
457 | ctf_array_text(char, comm, p->comm, TASK_COMM_LEN) | |
458 | ctf_integer(pid_t, tid, p->pid) | |
459 | ctf_integer(int, prio, p->prio - MAX_RT_PRIO) | |
460 | ) | |
f62b389e MD |
461 | ) |
462 | ||
463 | /* | |
464 | * Tracepoint for freeing a task: | |
465 | */ | |
3bc29f0a | 466 | LTTNG_TRACEPOINT_EVENT_INSTANCE(sched_process_template, sched_process_free, |
f62b389e MD |
467 | TP_PROTO(struct task_struct *p), |
468 | TP_ARGS(p)) | |
216b6baa | 469 | |
f62b389e MD |
470 | |
471 | /* | |
472 | * Tracepoint for a task exiting: | |
473 | */ | |
3bc29f0a | 474 | LTTNG_TRACEPOINT_EVENT_INSTANCE(sched_process_template, sched_process_exit, |
f62b389e MD |
475 | TP_PROTO(struct task_struct *p), |
476 | TP_ARGS(p)) | |
477 | ||
478 | /* | |
479 | * Tracepoint for waiting on task to unschedule: | |
480 | */ | |
3bc29f0a | 481 | LTTNG_TRACEPOINT_EVENT_INSTANCE(sched_process_template, sched_wait_task, |
f62b389e MD |
482 | TP_PROTO(struct task_struct *p), |
483 | TP_ARGS(p)) | |
484 | ||
485 | /* | |
486 | * Tracepoint for a waiting task: | |
487 | */ | |
3bc29f0a | 488 | LTTNG_TRACEPOINT_EVENT(sched_process_wait, |
f62b389e MD |
489 | |
490 | TP_PROTO(struct pid *pid), | |
491 | ||
492 | TP_ARGS(pid), | |
493 | ||
f127e61e MD |
494 | TP_FIELDS( |
495 | ctf_array_text(char, comm, current->comm, TASK_COMM_LEN) | |
496 | ctf_integer(pid_t, tid, pid_nr(pid)) | |
497 | ctf_integer(int, prio, current->prio - MAX_RT_PRIO) | |
498 | ) | |
f62b389e MD |
499 | ) |
500 | ||
501 | /* | |
79b18ef7 MD |
502 | * Tracepoint for do_fork. |
503 | * Saving both TID and PID information, especially for the child, allows | |
504 | * trace analyzers to distinguish between creation of a new process and | |
505 | * creation of a new thread. Newly created processes will have child_tid | |
506 | * == child_pid, while creation of a thread yields to child_tid != | |
507 | * child_pid. | |
f62b389e | 508 | */ |
7bbf55ea | 509 | LTTNG_TRACEPOINT_EVENT_CODE(sched_process_fork, |
f62b389e MD |
510 | |
511 | TP_PROTO(struct task_struct *parent, struct task_struct *child), | |
512 | ||
513 | TP_ARGS(parent, child), | |
514 | ||
7bbf55ea SL |
515 | TP_locvar( |
516 | pid_t vtids[LTTNG_MAX_PID_NS_LEVEL]; | |
517 | unsigned int ns_level; | |
518 | ), | |
519 | ||
265822ae | 520 | TP_code_pre( |
7bbf55ea SL |
521 | if (child) { |
522 | struct pid *child_pid; | |
523 | unsigned int i; | |
524 | ||
525 | child_pid = task_pid(child); | |
526 | tp_locvar->ns_level = | |
527 | min_t(unsigned int, child_pid->level + 1, | |
528 | LTTNG_MAX_PID_NS_LEVEL); | |
529 | for (i = 0; i < tp_locvar->ns_level; i++) | |
530 | tp_locvar->vtids[i] = child_pid->numbers[i].nr; | |
531 | } | |
532 | ), | |
533 | ||
f127e61e MD |
534 | TP_FIELDS( |
535 | ctf_array_text(char, parent_comm, parent->comm, TASK_COMM_LEN) | |
536 | ctf_integer(pid_t, parent_tid, parent->pid) | |
537 | ctf_integer(pid_t, parent_pid, parent->tgid) | |
2d042821 | 538 | #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,8,0)) |
7bbf55ea SL |
539 | ctf_integer(unsigned int, parent_ns_inum, |
540 | ({ | |
541 | unsigned int parent_ns_inum = 0; | |
542 | ||
543 | if (parent) { | |
544 | struct pid_namespace *pid_ns; | |
545 | ||
546 | pid_ns = task_active_pid_ns(parent); | |
547 | if (pid_ns) | |
548 | parent_ns_inum = | |
a6cf40a4 | 549 | pid_ns->lttng_ns_inum; |
7bbf55ea SL |
550 | } |
551 | parent_ns_inum; | |
552 | })) | |
553 | #endif | |
f127e61e MD |
554 | ctf_array_text(char, child_comm, child->comm, TASK_COMM_LEN) |
555 | ctf_integer(pid_t, child_tid, child->pid) | |
7bbf55ea | 556 | ctf_sequence(pid_t, vtids, tp_locvar->vtids, u8, tp_locvar->ns_level) |
f127e61e | 557 | ctf_integer(pid_t, child_pid, child->tgid) |
2d042821 | 558 | #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,8,0)) |
7bbf55ea SL |
559 | ctf_integer(unsigned int, child_ns_inum, |
560 | ({ | |
561 | unsigned int child_ns_inum = 0; | |
562 | ||
563 | if (child) { | |
564 | struct pid_namespace *pid_ns; | |
565 | ||
566 | pid_ns = task_active_pid_ns(child); | |
567 | if (pid_ns) | |
568 | child_ns_inum = | |
a6cf40a4 | 569 | pid_ns->lttng_ns_inum; |
7bbf55ea SL |
570 | } |
571 | child_ns_inum; | |
572 | })) | |
573 | #endif | |
265822ae MD |
574 | ), |
575 | ||
576 | TP_code_post() | |
f62b389e MD |
577 | ) |
578 | ||
2d042821 | 579 | #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,4,0)) |
46142a81 PW |
580 | /* |
581 | * Tracepoint for exec: | |
582 | */ | |
3bc29f0a | 583 | LTTNG_TRACEPOINT_EVENT(sched_process_exec, |
46142a81 PW |
584 | |
585 | TP_PROTO(struct task_struct *p, pid_t old_pid, | |
586 | struct linux_binprm *bprm), | |
587 | ||
588 | TP_ARGS(p, old_pid, bprm), | |
589 | ||
f127e61e MD |
590 | TP_FIELDS( |
591 | ctf_string(filename, bprm->filename) | |
592 | ctf_integer(pid_t, tid, p->pid) | |
593 | ctf_integer(pid_t, old_tid, old_pid) | |
594 | ) | |
46142a81 | 595 | ) |
c94b2508 | 596 | #endif |
46142a81 | 597 | |
f62b389e MD |
598 | /* |
599 | * XXX the below sched_stat tracepoints only apply to SCHED_OTHER/BATCH/IDLE | |
600 | * adding sched_stat support to SCHED_FIFO/RR would be welcome. | |
601 | */ | |
3bc29f0a | 602 | LTTNG_TRACEPOINT_EVENT_CLASS(sched_stat_template, |
f62b389e MD |
603 | |
604 | TP_PROTO(struct task_struct *tsk, u64 delay), | |
605 | ||
606 | TP_ARGS(tsk, delay), | |
607 | ||
f127e61e MD |
608 | TP_FIELDS( |
609 | ctf_array_text(char, comm, tsk->comm, TASK_COMM_LEN) | |
610 | ctf_integer(pid_t, tid, tsk->pid) | |
611 | ctf_integer(u64, delay, delay) | |
f62b389e | 612 | ) |
f62b389e MD |
613 | ) |
614 | ||
615 | ||
616 | /* | |
617 | * Tracepoint for accounting wait time (time the task is runnable | |
618 | * but not actually running due to scheduler contention). | |
619 | */ | |
3bc29f0a | 620 | LTTNG_TRACEPOINT_EVENT_INSTANCE(sched_stat_template, sched_stat_wait, |
f62b389e MD |
621 | TP_PROTO(struct task_struct *tsk, u64 delay), |
622 | TP_ARGS(tsk, delay)) | |
623 | ||
624 | /* | |
625 | * Tracepoint for accounting sleep time (time the task is not runnable, | |
626 | * including iowait, see below). | |
627 | */ | |
3bc29f0a | 628 | LTTNG_TRACEPOINT_EVENT_INSTANCE(sched_stat_template, sched_stat_sleep, |
f62b389e MD |
629 | TP_PROTO(struct task_struct *tsk, u64 delay), |
630 | TP_ARGS(tsk, delay)) | |
631 | ||
632 | /* | |
633 | * Tracepoint for accounting iowait time (time the task is not runnable | |
634 | * due to waiting on IO to complete). | |
635 | */ | |
3bc29f0a | 636 | LTTNG_TRACEPOINT_EVENT_INSTANCE(sched_stat_template, sched_stat_iowait, |
f62b389e MD |
637 | TP_PROTO(struct task_struct *tsk, u64 delay), |
638 | TP_ARGS(tsk, delay)) | |
639 | ||
2d042821 | 640 | #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,3,0)) |
7c68b363 AG |
641 | /* |
642 | * Tracepoint for accounting blocked time (time the task is in uninterruptible). | |
643 | */ | |
3bc29f0a | 644 | LTTNG_TRACEPOINT_EVENT_INSTANCE(sched_stat_template, sched_stat_blocked, |
7c68b363 AG |
645 | TP_PROTO(struct task_struct *tsk, u64 delay), |
646 | TP_ARGS(tsk, delay)) | |
647 | #endif | |
648 | ||
f62b389e MD |
649 | /* |
650 | * Tracepoint for accounting runtime (time the task is executing | |
651 | * on a CPU). | |
652 | */ | |
3bc29f0a | 653 | LTTNG_TRACEPOINT_EVENT(sched_stat_runtime, |
f62b389e MD |
654 | |
655 | TP_PROTO(struct task_struct *tsk, u64 runtime, u64 vruntime), | |
656 | ||
657 | TP_ARGS(tsk, runtime, vruntime), | |
658 | ||
f127e61e MD |
659 | TP_FIELDS( |
660 | ctf_array_text(char, comm, tsk->comm, TASK_COMM_LEN) | |
661 | ctf_integer(pid_t, tid, tsk->pid) | |
662 | ctf_integer(u64, runtime, runtime) | |
663 | ctf_integer(u64, vruntime, vruntime) | |
f62b389e | 664 | ) |
f62b389e MD |
665 | ) |
666 | ||
2d042821 | 667 | #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,12,0) || \ |
46dded2d MJ |
668 | LTTNG_RT_KERNEL_RANGE(4,9,27,18, 4,10,0,0) || \ |
669 | LTTNG_RT_KERNEL_RANGE(4,11,5,1, 4,12,0,0)) | |
673e9a03 MJ |
670 | /* |
671 | * Tracepoint for showing priority inheritance modifying a tasks | |
672 | * priority. | |
673 | */ | |
674 | LTTNG_TRACEPOINT_EVENT(sched_pi_setprio, | |
675 | ||
676 | TP_PROTO(struct task_struct *tsk, struct task_struct *pi_task), | |
677 | ||
678 | TP_ARGS(tsk, pi_task), | |
679 | ||
680 | TP_FIELDS( | |
681 | ctf_array_text(char, comm, tsk->comm, TASK_COMM_LEN) | |
682 | ctf_integer(pid_t, tid, tsk->pid) | |
683 | ctf_integer(int, oldprio, tsk->prio - MAX_RT_PRIO) | |
684 | ctf_integer(int, newprio, pi_task ? pi_task->prio - MAX_RT_PRIO : tsk->prio - MAX_RT_PRIO) | |
685 | ) | |
686 | ) | |
ead65427 | 687 | #else |
f62b389e MD |
688 | /* |
689 | * Tracepoint for showing priority inheritance modifying a tasks | |
690 | * priority. | |
691 | */ | |
3bc29f0a | 692 | LTTNG_TRACEPOINT_EVENT(sched_pi_setprio, |
f62b389e MD |
693 | |
694 | TP_PROTO(struct task_struct *tsk, int newprio), | |
695 | ||
696 | TP_ARGS(tsk, newprio), | |
697 | ||
f127e61e MD |
698 | TP_FIELDS( |
699 | ctf_array_text(char, comm, tsk->comm, TASK_COMM_LEN) | |
700 | ctf_integer(pid_t, tid, tsk->pid) | |
701 | ctf_integer(int, oldprio, tsk->prio - MAX_RT_PRIO) | |
702 | ctf_integer(int, newprio, newprio - MAX_RT_PRIO) | |
703 | ) | |
f62b389e | 704 | ) |
7c68b363 | 705 | #endif |
f62b389e | 706 | |
3bc29f0a | 707 | #endif /* LTTNG_TRACE_SCHED_H */ |
f62b389e MD |
708 | |
709 | /* This part must be outside protection */ | |
6ec43db8 | 710 | #include <probes/define_trace.h> |