include/instrumentation/events/sched.h

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2 #undef TRACE_SYSTEM
   3 #define TRACE_SYSTEM sched
   4
   5 #if !defined(LTTNG_TRACE_SCHED_H) || defined(TRACE_HEADER_MULTI_READ)
   6 #define LTTNG_TRACE_SCHED_H
   7
   8 #include <lttng/tracepoint-event.h>
   9 #include <linux/sched.h>
  10 #include <linux/pid_namespace.h>
  11 #include <linux/binfmts.h>
  12 #include <lttng/kernel-version.h>
  13 #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,9,0))
  14 #include <linux/sched/rt.h>
  15 #endif
  16 #include <wrapper/namespace.h>
  17
  18 #define LTTNG_MAX_PID_NS_LEVEL 32
  19
  20 #ifndef _TRACE_SCHED_DEF_
  21 #define _TRACE_SCHED_DEF_
  22
  23 #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,15,0))
  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
  51 #elif (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,14,0))
  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
  79 #elif (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,4,0))
  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
  93 #elif (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,19,0))
  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
 113 #elif (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,13,0))
 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
 130 #elif (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,2,0))
 131
 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)
 141                 state = TASK_RUNNING | TASK_STATE_MAX;
 142 #endif
 143
 144         return state;
 145 }
 146
 147 #else
 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;
 159 #endif
 160
 161         return state;
 162 }
 163
 164 #endif
 165
 166 #endif /* _TRACE_SCHED_DEF_ */
 167
 168 #ifdef CONFIG_LTTNG_EXPERIMENTAL_BITWISE_ENUM
 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
 183 #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,9,0))
 184                 ctf_enum_value("TASK_PARKED", TASK_PARKED)
 185 #endif /* #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,9,0)) */
 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
 191 #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,2,0))
 192                 ctf_enum_value("TASK_NOLOAD", TASK_NOLOAD)
 193 #endif /* #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,2,0)) */
 194
 195 #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,8,0))
 196                 ctf_enum_value("TASK_NEW", TASK_NEW)
 197 #endif /* #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,8,0)) */
 198
 199                 ctf_enum_value("TASK_STATE_MAX", TASK_STATE_MAX)
 200         )
 201 )
 202 #endif /* CONFIG_LTTNG_EXPERIMENTAL_BITWISE_ENUM */
 203
 204 /*
 205  * Tracepoint for calling kthread_stop, performed to end a kthread:
 206  */
 207 LTTNG_TRACEPOINT_EVENT(sched_kthread_stop,
 208
 209         TP_PROTO(struct task_struct *t),
 210
 211         TP_ARGS(t),
 212
 213         TP_FIELDS(
 214                 ctf_array_text(char, comm, t->comm, TASK_COMM_LEN)
 215                 ctf_integer(pid_t, tid, t->pid)
 216         )
 217 )
 218
 219 /*
 220  * Tracepoint for the return value of the kthread stopping:
 221  */
 222 LTTNG_TRACEPOINT_EVENT(sched_kthread_stop_ret,
 223
 224         TP_PROTO(int ret),
 225
 226         TP_ARGS(ret),
 227
 228         TP_FIELDS(
 229                 ctf_integer(int, ret, ret)
 230         )
 231 )
 232
 233 /*
 234  * Tracepoint for waking up a task:
 235  */
 236 #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,3,0) || \
 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))
 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)
 253                 ctf_integer(int, prio, p->prio - MAX_RT_PRIO)
 254                 ctf_integer(int, target_cpu, task_cpu(p))
 255         )
 256 )
 257 #else /* #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,3,0)) */
 258 LTTNG_TRACEPOINT_EVENT_CLASS(sched_wakeup_template,
 259
 260         TP_PROTO(struct task_struct *p, int success),
 261
 262         TP_ARGS(p, success),
 263
 264         TP_FIELDS(
 265                 ctf_array_text(char, comm, p->comm, TASK_COMM_LEN)
 266                 ctf_integer(pid_t, tid, p->pid)
 267                 ctf_integer(int, prio, p->prio - MAX_RT_PRIO)
 268                 ctf_integer(int, success, success)
 269                 ctf_integer(int, target_cpu, task_cpu(p))
 270         )
 271 )
 272 #endif /* #else #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,3,0)) */
 273
 274 #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,3,0) || \
 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))
 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
 306 #else
 307
 308 LTTNG_TRACEPOINT_EVENT_INSTANCE(sched_wakeup_template, sched_wakeup,
 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  */
 315 LTTNG_TRACEPOINT_EVENT_INSTANCE(sched_wakeup_template, sched_wakeup_new,
 316              TP_PROTO(struct task_struct *p, int success),
 317              TP_ARGS(p, success))
 318
 319 #endif /* #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,3,0)) */
 320
 321 /*
 322  * Tracepoint for task switches, performed by the scheduler:
 323  */
 324 LTTNG_TRACEPOINT_EVENT(sched_switch,
 325
 326 #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,4,0))
 327         TP_PROTO(bool preempt,
 328                  struct task_struct *prev,
 329                  struct task_struct *next),
 330
 331         TP_ARGS(preempt, prev, next),
 332 #else
 333         TP_PROTO(struct task_struct *prev,
 334                  struct task_struct *next),
 335
 336         TP_ARGS(prev, next),
 337 #endif /* #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,4,0)) */
 338
 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)
 343 #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,4,0))
 344 #ifdef CONFIG_LTTNG_EXPERIMENTAL_BITWISE_ENUM
 345                 ctf_enum(task_state, long, prev_state, __trace_sched_switch_state(preempt, prev))
 346 #else
 347                 ctf_integer(long, prev_state, __trace_sched_switch_state(preempt, prev))
 348 #endif
 349 #else
 350 #ifdef CONFIG_LTTNG_EXPERIMENTAL_BITWISE_ENUM
 351                 ctf_enum(task_state, long, prev_state, __trace_sched_switch_state(prev))
 352 #else
 353                 ctf_integer(long, prev_state, __trace_sched_switch_state(prev))
 354 #endif
 355 #endif
 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         )
 360 )
 361
 362 /*
 363  * Tracepoint for a task being migrated:
 364  */
 365 LTTNG_TRACEPOINT_EVENT(sched_migrate_task,
 366
 367         TP_PROTO(struct task_struct *p, int dest_cpu),
 368
 369         TP_ARGS(p, dest_cpu),
 370
 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         )
 378 )
 379
 380 LTTNG_TRACEPOINT_EVENT_CLASS(sched_process_template,
 381
 382         TP_PROTO(struct task_struct *p),
 383
 384         TP_ARGS(p),
 385
 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         )
 391 )
 392
 393 /*
 394  * Tracepoint for freeing a task:
 395  */
 396 LTTNG_TRACEPOINT_EVENT_INSTANCE(sched_process_template, sched_process_free,
 397              TP_PROTO(struct task_struct *p),
 398              TP_ARGS(p))
 399
 400
 401 /*
 402  * Tracepoint for a task exiting:
 403  */
 404 LTTNG_TRACEPOINT_EVENT_INSTANCE(sched_process_template, sched_process_exit,
 405              TP_PROTO(struct task_struct *p),
 406              TP_ARGS(p))
 407
 408 /*
 409  * Tracepoint for waiting on task to unschedule:
 410  */
 411 LTTNG_TRACEPOINT_EVENT_INSTANCE(sched_process_template, sched_wait_task,
 412         TP_PROTO(struct task_struct *p),
 413         TP_ARGS(p))
 414
 415 /*
 416  * Tracepoint for a waiting task:
 417  */
 418 LTTNG_TRACEPOINT_EVENT(sched_process_wait,
 419
 420         TP_PROTO(struct pid *pid),
 421
 422         TP_ARGS(pid),
 423
 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         )
 429 )
 430
 431 /*
 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.
 438  */
 439 LTTNG_TRACEPOINT_EVENT_CODE(sched_process_fork,
 440
 441         TP_PROTO(struct task_struct *parent, struct task_struct *child),
 442
 443         TP_ARGS(parent, child),
 444
 445         TP_locvar(
 446                 pid_t vtids[LTTNG_MAX_PID_NS_LEVEL];
 447                 unsigned int ns_level;
 448         ),
 449
 450         TP_code_pre(
 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
 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)
 468 #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,8,0))
 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 =
 479                                                         pid_ns->lttng_ns_inum;
 480                                 }
 481                                 parent_ns_inum;
 482                         }))
 483 #endif
 484                 ctf_array_text(char, child_comm, child->comm, TASK_COMM_LEN)
 485                 ctf_integer(pid_t, child_tid, child->pid)
 486                 ctf_sequence(pid_t, vtids, tp_locvar->vtids, u8, tp_locvar->ns_level)
 487                 ctf_integer(pid_t, child_pid, child->tgid)
 488 #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,8,0))
 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 =
 499                                                         pid_ns->lttng_ns_inum;
 500                                 }
 501                                 child_ns_inum;
 502                         }))
 503 #endif
 504         ),
 505
 506         TP_code_post()
 507 )
 508
 509 #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,4,0))
 510 /*
 511  * Tracepoint for exec:
 512  */
 513 LTTNG_TRACEPOINT_EVENT(sched_process_exec,
 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
 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         )
 525 )
 526 #endif
 527
 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  */
 532 LTTNG_TRACEPOINT_EVENT_CLASS(sched_stat_template,
 533
 534         TP_PROTO(struct task_struct *tsk, u64 delay),
 535
 536         TP_ARGS(tsk, delay),
 537
 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)
 542         )
 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  */
 550 LTTNG_TRACEPOINT_EVENT_INSTANCE(sched_stat_template, sched_stat_wait,
 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  */
 558 LTTNG_TRACEPOINT_EVENT_INSTANCE(sched_stat_template, sched_stat_sleep,
 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  */
 566 LTTNG_TRACEPOINT_EVENT_INSTANCE(sched_stat_template, sched_stat_iowait,
 567              TP_PROTO(struct task_struct *tsk, u64 delay),
 568              TP_ARGS(tsk, delay))
 569
 570 #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,3,0))
 571 /*
 572  * Tracepoint for accounting blocked time (time the task is in uninterruptible).
 573  */
 574 LTTNG_TRACEPOINT_EVENT_INSTANCE(sched_stat_template, sched_stat_blocked,
 575              TP_PROTO(struct task_struct *tsk, u64 delay),
 576              TP_ARGS(tsk, delay))
 577 #endif
 578
 579 /*
 580  * Tracepoint for accounting runtime (time the task is executing
 581  * on a CPU).
 582  */
 583 LTTNG_TRACEPOINT_EVENT(sched_stat_runtime,
 584
 585         TP_PROTO(struct task_struct *tsk, u64 runtime, u64 vruntime),
 586
 587         TP_ARGS(tsk, runtime, vruntime),
 588
 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)
 594         )
 595 )
 596
 597 #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,12,0) || \
 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))
 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 )
 617 #else
 618 /*
 619  * Tracepoint for showing priority inheritance modifying a tasks
 620  * priority.
 621  */
 622 LTTNG_TRACEPOINT_EVENT(sched_pi_setprio,
 623
 624         TP_PROTO(struct task_struct *tsk, int newprio),
 625
 626         TP_ARGS(tsk, newprio),
 627
 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         )
 634 )
 635 #endif
 636
 637 #endif /* LTTNG_TRACE_SCHED_H */
 638
 639 /* This part must be outside protection */
 640 #include <lttng/define_trace.h>