instrumentation/events/lttng-module/sched.h

   1 #undef TRACE_SYSTEM
   2 #define TRACE_SYSTEM sched
   3
   4 #if !defined(LTTNG_TRACE_SCHED_H) || defined(TRACE_HEADER_MULTI_READ)
   5 #define LTTNG_TRACE_SCHED_H
   6
   7 #include <probes/lttng-tracepoint-event.h>
   8 #include <linux/sched.h>
   9 #include <linux/pid_namespace.h>
  10 #include <linux/binfmts.h>
  11 #include <linux/version.h>
  12 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,9,0))
  13 #include <linux/sched/rt.h>
  14 #endif
  15
  16 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,19,0))
  17 #define lttng_proc_inum ns.inum
  18 #else
  19 #define lttng_proc_inum proc_inum
  20 #endif
  21
  22 #define LTTNG_MAX_PID_NS_LEVEL 32
  23
  24 #ifndef _TRACE_SCHED_DEF_
  25 #define _TRACE_SCHED_DEF_
  26
  27 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,15,0))
  28
  29 static inline long __trace_sched_switch_state(bool preempt, struct task_struct *p)
  30 {
  31         unsigned int state;
  32
  33 #ifdef CONFIG_SCHED_DEBUG
  34         BUG_ON(p != current);
  35 #endif /* CONFIG_SCHED_DEBUG */
  36
  37         /*
  38          * Preemption ignores task state, therefore preempted tasks are always
  39          * RUNNING (we will not have dequeued if state != RUNNING).
  40          */
  41         if (preempt)
  42                 return TASK_REPORT_MAX;
  43
  44         /*
  45          * task_state_index() uses fls() and returns a value from 0-8 range.
  46          * Decrement it by 1 (except TASK_RUNNING state i.e 0) before using
  47          * it for left shift operation to get the correct task->state
  48          * mapping.
  49          */
  50         state = task_state_index(p);
  51
  52         return state ? (1 << (state - 1)) : state;
  53 }
  54
  55 #elif (LINUX_VERSION_CODE >= KERNEL_VERSION(4,14,0))
  56
  57 static inline long __trace_sched_switch_state(bool preempt, struct task_struct *p)
  58 {
  59         unsigned int state;
  60
  61 #ifdef CONFIG_SCHED_DEBUG
  62         BUG_ON(p != current);
  63 #endif /* CONFIG_SCHED_DEBUG */
  64
  65         /*
  66          * Preemption ignores task state, therefore preempted tasks are always
  67          * RUNNING (we will not have dequeued if state != RUNNING).
  68          */
  69         if (preempt)
  70                 return TASK_REPORT_MAX;
  71
  72         /*
  73          * __get_task_state() uses fls() and returns a value from 0-8 range.
  74          * Decrement it by 1 (except TASK_RUNNING state i.e 0) before using
  75          * it for left shift operation to get the correct task->state
  76          * mapping.
  77          */
  78         state = __get_task_state(p);
  79
  80         return state ? (1 << (state - 1)) : state;
  81 }
  82
  83 #elif (LINUX_VERSION_CODE >= KERNEL_VERSION(4,4,0))
  84
  85 static inline long __trace_sched_switch_state(bool preempt, struct task_struct *p)
  86 {
  87 #ifdef CONFIG_SCHED_DEBUG
  88         BUG_ON(p != current);
  89 #endif /* CONFIG_SCHED_DEBUG */
  90         /*
  91          * Preemption ignores task state, therefore preempted tasks are always RUNNING
  92          * (we will not have dequeued if state != RUNNING).
  93          */
  94         return preempt ? TASK_RUNNING | TASK_STATE_MAX : p->state;
  95 }
  96
  97 #elif (LINUX_VERSION_CODE >= KERNEL_VERSION(3,19,0))
  98
  99 static inline long __trace_sched_switch_state(struct task_struct *p)
 100 {
 101         long state = p->state;
 102
 103 #ifdef CONFIG_PREEMPT
 104 #ifdef CONFIG_SCHED_DEBUG
 105         BUG_ON(p != current);
 106 #endif /* CONFIG_SCHED_DEBUG */
 107         /*
 108          * For all intents and purposes a preempted task is a running task.
 109          */
 110         if (preempt_count() & PREEMPT_ACTIVE)
 111                 state = TASK_RUNNING | TASK_STATE_MAX;
 112 #endif  /* CONFIG_PREEMPT */
 113
 114         return state;
 115 }
 116
 117 #elif (LINUX_VERSION_CODE >= KERNEL_VERSION(3,13,0))
 118
 119 static inline long __trace_sched_switch_state(struct task_struct *p)
 120 {
 121         long state = p->state;
 122
 123 #ifdef CONFIG_PREEMPT
 124         /*
 125          * For all intents and purposes a preempted task is a running task.
 126          */
 127         if (task_preempt_count(p) & PREEMPT_ACTIVE)
 128                 state = TASK_RUNNING | TASK_STATE_MAX;
 129 #endif
 130
 131         return state;
 132 }
 133
 134 #elif (LINUX_VERSION_CODE >= KERNEL_VERSION(3,2,0))
 135
 136 static inline long __trace_sched_switch_state(struct task_struct *p)
 137 {
 138         long state = p->state;
 139
 140 #ifdef CONFIG_PREEMPT
 141         /*
 142          * For all intents and purposes a preempted task is a running task.
 143          */
 144         if (task_thread_info(p)->preempt_count & PREEMPT_ACTIVE)
 145                 state = TASK_RUNNING | TASK_STATE_MAX;
 146 #endif
 147
 148         return state;
 149 }
 150
 151 #elif (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,35))
 152
 153 static inline long __trace_sched_switch_state(struct task_struct *p)
 154 {
 155         long state = p->state;
 156
 157 #ifdef CONFIG_PREEMPT
 158         /*
 159          * For all intents and purposes a preempted task is a running task.
 160          */
 161         if (task_thread_info(p)->preempt_count & PREEMPT_ACTIVE)
 162                 state = TASK_RUNNING;
 163 #endif
 164
 165         return state;
 166 }
 167
 168 #endif
 169
 170 #endif /* _TRACE_SCHED_DEF_ */
 171
 172 /*
 173  * Tracepoint for calling kthread_stop, performed to end a kthread:
 174  */
 175 LTTNG_TRACEPOINT_EVENT(sched_kthread_stop,
 176
 177         TP_PROTO(struct task_struct *t),
 178
 179         TP_ARGS(t),
 180
 181         TP_FIELDS(
 182                 ctf_array_text(char, comm, t->comm, TASK_COMM_LEN)
 183                 ctf_integer(pid_t, tid, t->pid)
 184         )
 185 )
 186
 187 /*
 188  * Tracepoint for the return value of the kthread stopping:
 189  */
 190 LTTNG_TRACEPOINT_EVENT(sched_kthread_stop_ret,
 191
 192         TP_PROTO(int ret),
 193
 194         TP_ARGS(ret),
 195
 196         TP_FIELDS(
 197                 ctf_integer(int, ret, ret)
 198         )
 199 )
 200
 201 /*
 202  * Tracepoint for waking up a task:
 203  */
 204 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,3,0) || \
 205         LTTNG_RT_KERNEL_RANGE(4,1,10,11, 4,2,0,0) || \
 206         LTTNG_RT_KERNEL_RANGE(3,18,27,26, 3,19,0,0) || \
 207         LTTNG_RT_KERNEL_RANGE(3,14,61,63, 3,15,0,0) || \
 208         LTTNG_RT_KERNEL_RANGE(3,12,54,73, 3,13,0,0) || \
 209         LTTNG_RT_KERNEL_RANGE(3,10,97,106, 3,11,0,0) || \
 210         LTTNG_RT_KERNEL_RANGE(3,4,110,139, 3,5,0,0) || \
 211         LTTNG_RT_KERNEL_RANGE(3,2,77,111, 3,3,0,0))
 212 LTTNG_TRACEPOINT_EVENT_CLASS(sched_wakeup_template,
 213
 214         TP_PROTO(struct task_struct *p),
 215
 216         TP_ARGS(p),
 217
 218         TP_FIELDS(
 219                 ctf_array_text(char, comm, p->comm, TASK_COMM_LEN)
 220                 ctf_integer(pid_t, tid, p->pid)
 221                 ctf_integer(int, prio, p->prio - MAX_RT_PRIO)
 222                 ctf_integer(int, target_cpu, task_cpu(p))
 223         )
 224 )
 225 #else /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,3,0)) */
 226 LTTNG_TRACEPOINT_EVENT_CLASS(sched_wakeup_template,
 227
 228 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,35))
 229         TP_PROTO(struct task_struct *p, int success),
 230
 231         TP_ARGS(p, success),
 232 #else
 233         TP_PROTO(struct rq *rq, struct task_struct *p, int success),
 234
 235         TP_ARGS(rq, p, success),
 236 #endif
 237
 238         TP_FIELDS(
 239                 ctf_array_text(char, comm, p->comm, TASK_COMM_LEN)
 240                 ctf_integer(pid_t, tid, p->pid)
 241                 ctf_integer(int, prio, p->prio - MAX_RT_PRIO)
 242                 ctf_integer(int, success, success)
 243 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,32))
 244                 ctf_integer(int, target_cpu, task_cpu(p))
 245 #endif
 246         )
 247 )
 248 #endif /* #else #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,3,0)) */
 249
 250 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,3,0) || \
 251         LTTNG_RT_KERNEL_RANGE(4,1,10,11, 4,2,0,0) || \
 252         LTTNG_RT_KERNEL_RANGE(3,18,27,26, 3,19,0,0) || \
 253         LTTNG_RT_KERNEL_RANGE(3,14,61,63, 3,15,0,0) || \
 254         LTTNG_RT_KERNEL_RANGE(3,12,54,73, 3,13,0,0) || \
 255         LTTNG_RT_KERNEL_RANGE(3,10,97,106, 3,11,0,0) || \
 256         LTTNG_RT_KERNEL_RANGE(3,4,110,139, 3,5,0,0) || \
 257         LTTNG_RT_KERNEL_RANGE(3,2,77,111, 3,3,0,0))
 258
 259 /*
 260  * Tracepoint called when waking a task; this tracepoint is guaranteed to be
 261  * called from the waking context.
 262  */
 263 LTTNG_TRACEPOINT_EVENT_INSTANCE(sched_wakeup_template, sched_waking,
 264              TP_PROTO(struct task_struct *p),
 265              TP_ARGS(p))
 266
 267 /*
 268  * Tracepoint called when the task is actually woken; p->state == TASK_RUNNNG.
 269  * It it not always called from the waking context.
 270  */
 271 LTTNG_TRACEPOINT_EVENT_INSTANCE(sched_wakeup_template, sched_wakeup,
 272              TP_PROTO(struct task_struct *p),
 273              TP_ARGS(p))
 274
 275 /*
 276  * Tracepoint for waking up a new task:
 277  */
 278 LTTNG_TRACEPOINT_EVENT_INSTANCE(sched_wakeup_template, sched_wakeup_new,
 279              TP_PROTO(struct task_struct *p),
 280              TP_ARGS(p))
 281
 282 #elif (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,35))
 283
 284 LTTNG_TRACEPOINT_EVENT_INSTANCE(sched_wakeup_template, sched_wakeup,
 285              TP_PROTO(struct task_struct *p, int success),
 286              TP_ARGS(p, success))
 287
 288 /*
 289  * Tracepoint for waking up a new task:
 290  */
 291 LTTNG_TRACEPOINT_EVENT_INSTANCE(sched_wakeup_template, sched_wakeup_new,
 292              TP_PROTO(struct task_struct *p, int success),
 293              TP_ARGS(p, success))
 294
 295 #else /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,35)) */
 296
 297 LTTNG_TRACEPOINT_EVENT_INSTANCE(sched_wakeup_template, sched_wakeup,
 298              TP_PROTO(struct rq *rq, struct task_struct *p, int success),
 299              TP_ARGS(rq, p, success))
 300
 301 /*
 302  * Tracepoint for waking up a new task:
 303  */
 304 LTTNG_TRACEPOINT_EVENT_INSTANCE(sched_wakeup_template, sched_wakeup_new,
 305              TP_PROTO(struct rq *rq, struct task_struct *p, int success),
 306              TP_ARGS(rq, p, success))
 307
 308 #endif /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,35)) */
 309
 310 /*
 311  * Tracepoint for task switches, performed by the scheduler:
 312  */
 313 LTTNG_TRACEPOINT_EVENT(sched_switch,
 314
 315 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,4,0))
 316         TP_PROTO(bool preempt,
 317                  struct task_struct *prev,
 318                  struct task_struct *next),
 319
 320         TP_ARGS(preempt, prev, next),
 321 #elif (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,35))
 322         TP_PROTO(struct task_struct *prev,
 323                  struct task_struct *next),
 324
 325         TP_ARGS(prev, next),
 326 #else /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,35)) */
 327         TP_PROTO(struct rq *rq, struct task_struct *prev,
 328                  struct task_struct *next),
 329
 330         TP_ARGS(rq, prev, next),
 331 #endif /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,35)) */
 332
 333         TP_FIELDS(
 334                 ctf_array_text(char, prev_comm, prev->comm, TASK_COMM_LEN)
 335                 ctf_integer(pid_t, prev_tid, prev->pid)
 336                 ctf_integer(int, prev_prio, prev->prio - MAX_RT_PRIO)
 337 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,4,0))
 338                 ctf_integer(long, prev_state, __trace_sched_switch_state(preempt, prev))
 339 #elif (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,35))
 340                 ctf_integer(long, prev_state, __trace_sched_switch_state(prev))
 341 #else
 342                 ctf_integer(long, prev_state, prev->state)
 343 #endif
 344                 ctf_array_text(char, next_comm, next->comm, TASK_COMM_LEN)
 345                 ctf_integer(pid_t, next_tid, next->pid)
 346                 ctf_integer(int, next_prio, next->prio - MAX_RT_PRIO)
 347         )
 348 )
 349
 350 /*
 351  * Tracepoint for a task being migrated:
 352  */
 353 LTTNG_TRACEPOINT_EVENT(sched_migrate_task,
 354
 355         TP_PROTO(struct task_struct *p, int dest_cpu),
 356
 357         TP_ARGS(p, dest_cpu),
 358
 359         TP_FIELDS(
 360                 ctf_array_text(char, comm, p->comm, TASK_COMM_LEN)
 361                 ctf_integer(pid_t, tid, p->pid)
 362                 ctf_integer(int, prio, p->prio - MAX_RT_PRIO)
 363                 ctf_integer(int, orig_cpu, task_cpu(p))
 364                 ctf_integer(int, dest_cpu, dest_cpu)
 365         )
 366 )
 367
 368 LTTNG_TRACEPOINT_EVENT_CLASS(sched_process_template,
 369
 370         TP_PROTO(struct task_struct *p),
 371
 372         TP_ARGS(p),
 373
 374         TP_FIELDS(
 375                 ctf_array_text(char, comm, p->comm, TASK_COMM_LEN)
 376                 ctf_integer(pid_t, tid, p->pid)
 377                 ctf_integer(int, prio, p->prio - MAX_RT_PRIO)
 378         )
 379 )
 380
 381 /*
 382  * Tracepoint for freeing a task:
 383  */
 384 LTTNG_TRACEPOINT_EVENT_INSTANCE(sched_process_template, sched_process_free,
 385              TP_PROTO(struct task_struct *p),
 386              TP_ARGS(p))
 387
 388
 389 /*
 390  * Tracepoint for a task exiting:
 391  */
 392 LTTNG_TRACEPOINT_EVENT_INSTANCE(sched_process_template, sched_process_exit,
 393              TP_PROTO(struct task_struct *p),
 394              TP_ARGS(p))
 395
 396 /*
 397  * Tracepoint for waiting on task to unschedule:
 398  */
 399 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,35))
 400 LTTNG_TRACEPOINT_EVENT_INSTANCE(sched_process_template, sched_wait_task,
 401         TP_PROTO(struct task_struct *p),
 402         TP_ARGS(p))
 403 #else /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,35)) */
 404 LTTNG_TRACEPOINT_EVENT_INSTANCE(sched_process_template, sched_wait_task,
 405         TP_PROTO(struct rq *rq, struct task_struct *p),
 406         TP_ARGS(rq, p))
 407 #endif /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,35)) */
 408
 409 /*
 410  * Tracepoint for a waiting task:
 411  */
 412 LTTNG_TRACEPOINT_EVENT(sched_process_wait,
 413
 414         TP_PROTO(struct pid *pid),
 415
 416         TP_ARGS(pid),
 417
 418         TP_FIELDS(
 419                 ctf_array_text(char, comm, current->comm, TASK_COMM_LEN)
 420                 ctf_integer(pid_t, tid, pid_nr(pid))
 421                 ctf_integer(int, prio, current->prio - MAX_RT_PRIO)
 422         )
 423 )
 424
 425 /*
 426  * Tracepoint for do_fork.
 427  * Saving both TID and PID information, especially for the child, allows
 428  * trace analyzers to distinguish between creation of a new process and
 429  * creation of a new thread. Newly created processes will have child_tid
 430  * == child_pid, while creation of a thread yields to child_tid !=
 431  * child_pid.
 432  */
 433 LTTNG_TRACEPOINT_EVENT_CODE(sched_process_fork,
 434
 435         TP_PROTO(struct task_struct *parent, struct task_struct *child),
 436
 437         TP_ARGS(parent, child),
 438
 439         TP_locvar(
 440                 pid_t vtids[LTTNG_MAX_PID_NS_LEVEL];
 441                 unsigned int ns_level;
 442         ),
 443
 444         TP_code_pre(
 445                 if (child) {
 446                         struct pid *child_pid;
 447                         unsigned int i;
 448
 449                         child_pid = task_pid(child);
 450                         tp_locvar->ns_level =
 451                                 min_t(unsigned int, child_pid->level + 1,
 452                                         LTTNG_MAX_PID_NS_LEVEL);
 453                         for (i = 0; i < tp_locvar->ns_level; i++)
 454                                 tp_locvar->vtids[i] = child_pid->numbers[i].nr;
 455                 }
 456         ),
 457
 458         TP_FIELDS(
 459                 ctf_array_text(char, parent_comm, parent->comm, TASK_COMM_LEN)
 460                 ctf_integer(pid_t, parent_tid, parent->pid)
 461                 ctf_integer(pid_t, parent_pid, parent->tgid)
 462 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,8,0))
 463                 ctf_integer(unsigned int, parent_ns_inum,
 464                         ({
 465                                 unsigned int parent_ns_inum = 0;
 466
 467                                 if (parent) {
 468                                         struct pid_namespace *pid_ns;
 469
 470                                         pid_ns = task_active_pid_ns(parent);
 471                                         if (pid_ns)
 472                                                 parent_ns_inum =
 473                                                         pid_ns->lttng_proc_inum;
 474                                 }
 475                                 parent_ns_inum;
 476                         }))
 477 #endif
 478                 ctf_array_text(char, child_comm, child->comm, TASK_COMM_LEN)
 479                 ctf_integer(pid_t, child_tid, child->pid)
 480                 ctf_sequence(pid_t, vtids, tp_locvar->vtids, u8, tp_locvar->ns_level)
 481                 ctf_integer(pid_t, child_pid, child->tgid)
 482 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,8,0))
 483                 ctf_integer(unsigned int, child_ns_inum,
 484                         ({
 485                                 unsigned int child_ns_inum = 0;
 486
 487                                 if (child) {
 488                                         struct pid_namespace *pid_ns;
 489
 490                                         pid_ns = task_active_pid_ns(child);
 491                                         if (pid_ns)
 492                                                 child_ns_inum =
 493                                                         pid_ns->lttng_proc_inum;
 494                                 }
 495                                 child_ns_inum;
 496                         }))
 497 #endif
 498         ),
 499
 500         TP_code_post()
 501 )
 502
 503 #if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,33))
 504 /*
 505  * Tracepoint for sending a signal:
 506  */
 507 LTTNG_TRACEPOINT_EVENT(sched_signal_send,
 508
 509         TP_PROTO(int sig, struct task_struct *p),
 510
 511         TP_ARGS(sig, p),
 512
 513         TP_FIELDS(
 514                 ctf_integer(int, sig, sig)
 515                 ctf_array_text(char, comm, p->comm, TASK_COMM_LEN)
 516                 ctf_integer(pid_t, tid, p->pid)
 517         )
 518 )
 519 #endif
 520
 521 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,4,0))
 522 /*
 523  * Tracepoint for exec:
 524  */
 525 LTTNG_TRACEPOINT_EVENT(sched_process_exec,
 526
 527         TP_PROTO(struct task_struct *p, pid_t old_pid,
 528                  struct linux_binprm *bprm),
 529
 530         TP_ARGS(p, old_pid, bprm),
 531
 532         TP_FIELDS(
 533                 ctf_string(filename, bprm->filename)
 534                 ctf_integer(pid_t, tid, p->pid)
 535                 ctf_integer(pid_t, old_tid, old_pid)
 536         )
 537 )
 538 #endif
 539
 540 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,32))
 541 /*
 542  * XXX the below sched_stat tracepoints only apply to SCHED_OTHER/BATCH/IDLE
 543  *     adding sched_stat support to SCHED_FIFO/RR would be welcome.
 544  */
 545 LTTNG_TRACEPOINT_EVENT_CLASS(sched_stat_template,
 546
 547         TP_PROTO(struct task_struct *tsk, u64 delay),
 548
 549         TP_ARGS(tsk, delay),
 550
 551         TP_FIELDS(
 552                 ctf_array_text(char, comm, tsk->comm, TASK_COMM_LEN)
 553                 ctf_integer(pid_t, tid, tsk->pid)
 554                 ctf_integer(u64, delay, delay)
 555         )
 556 )
 557
 558
 559 /*
 560  * Tracepoint for accounting wait time (time the task is runnable
 561  * but not actually running due to scheduler contention).
 562  */
 563 LTTNG_TRACEPOINT_EVENT_INSTANCE(sched_stat_template, sched_stat_wait,
 564              TP_PROTO(struct task_struct *tsk, u64 delay),
 565              TP_ARGS(tsk, delay))
 566
 567 /*
 568  * Tracepoint for accounting sleep time (time the task is not runnable,
 569  * including iowait, see below).
 570  */
 571 LTTNG_TRACEPOINT_EVENT_INSTANCE(sched_stat_template, sched_stat_sleep,
 572              TP_PROTO(struct task_struct *tsk, u64 delay),
 573              TP_ARGS(tsk, delay))
 574
 575 /*
 576  * Tracepoint for accounting iowait time (time the task is not runnable
 577  * due to waiting on IO to complete).
 578  */
 579 LTTNG_TRACEPOINT_EVENT_INSTANCE(sched_stat_template, sched_stat_iowait,
 580              TP_PROTO(struct task_struct *tsk, u64 delay),
 581              TP_ARGS(tsk, delay))
 582
 583 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,3,0))
 584 /*
 585  * Tracepoint for accounting blocked time (time the task is in uninterruptible).
 586  */
 587 LTTNG_TRACEPOINT_EVENT_INSTANCE(sched_stat_template, sched_stat_blocked,
 588              TP_PROTO(struct task_struct *tsk, u64 delay),
 589              TP_ARGS(tsk, delay))
 590 #endif
 591
 592 /*
 593  * Tracepoint for accounting runtime (time the task is executing
 594  * on a CPU).
 595  */
 596 LTTNG_TRACEPOINT_EVENT(sched_stat_runtime,
 597
 598         TP_PROTO(struct task_struct *tsk, u64 runtime, u64 vruntime),
 599
 600         TP_ARGS(tsk, runtime, vruntime),
 601
 602         TP_FIELDS(
 603                 ctf_array_text(char, comm, tsk->comm, TASK_COMM_LEN)
 604                 ctf_integer(pid_t, tid, tsk->pid)
 605                 ctf_integer(u64, runtime, runtime)
 606                 ctf_integer(u64, vruntime, vruntime)
 607         )
 608 )
 609 #endif
 610
 611 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,12,0) || \
 612         LTTNG_RT_KERNEL_RANGE(4,9,27,18, 4,10,0,0) || \
 613         LTTNG_RT_KERNEL_RANGE(4,11,5,1, 4,12,0,0))
 614 /*
 615  * Tracepoint for showing priority inheritance modifying a tasks
 616  * priority.
 617  */
 618 LTTNG_TRACEPOINT_EVENT(sched_pi_setprio,
 619
 620         TP_PROTO(struct task_struct *tsk, struct task_struct *pi_task),
 621
 622         TP_ARGS(tsk, pi_task),
 623
 624         TP_FIELDS(
 625                 ctf_array_text(char, comm, tsk->comm, TASK_COMM_LEN)
 626                 ctf_integer(pid_t, tid, tsk->pid)
 627                 ctf_integer(int, oldprio, tsk->prio - MAX_RT_PRIO)
 628                 ctf_integer(int, newprio, pi_task ? pi_task->prio - MAX_RT_PRIO : tsk->prio - MAX_RT_PRIO)
 629         )
 630 )
 631 #elif (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,37))
 632 /*
 633  * Tracepoint for showing priority inheritance modifying a tasks
 634  * priority.
 635  */
 636 LTTNG_TRACEPOINT_EVENT(sched_pi_setprio,
 637
 638         TP_PROTO(struct task_struct *tsk, int newprio),
 639
 640         TP_ARGS(tsk, newprio),
 641
 642         TP_FIELDS(
 643                 ctf_array_text(char, comm, tsk->comm, TASK_COMM_LEN)
 644                 ctf_integer(pid_t, tid, tsk->pid)
 645                 ctf_integer(int, oldprio, tsk->prio - MAX_RT_PRIO)
 646                 ctf_integer(int, newprio, newprio - MAX_RT_PRIO)
 647         )
 648 )
 649 #endif
 650
 651 #endif /* LTTNG_TRACE_SCHED_H */
 652
 653 /* This part must be outside protection */
 654 #include <probes/define_trace.h>