[deliverable/lttng-modules.git] / instrumentation / events / lttng-module / sched.h

#undef TRACE_SYSTEM
#define TRACE_SYSTEM sched

#if !defined(LTTNG_TRACE_SCHED_H) || defined(TRACE_HEADER_MULTI_READ)
#define LTTNG_TRACE_SCHED_H

#include "../../../probes/lttng-tracepoint-event.h"
#include <linux/sched.h>
#include <linux/pid_namespace.h>
#include <linux/binfmts.h>
#include <linux/version.h>
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,9,0))
#include <linux/sched/rt.h>
#endif

#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,19,0))
#define lttng_proc_inum ns.inum
#else
#define lttng_proc_inum proc_inum
#endif

#define LTTNG_MAX_PID_NS_LEVEL 32

#ifndef _TRACE_SCHED_DEF_
#define _TRACE_SCHED_DEF_

#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,19,0))

static inline long __trace_sched_switch_state(struct task_struct *p)
{
	long state = p->state;

#ifdef CONFIG_PREEMPT
#ifdef CONFIG_SCHED_DEBUG
	BUG_ON(p != current);
#endif /* CONFIG_SCHED_DEBUG */
	/*
	 * For all intents and purposes a preempted task is a running task.
	 */
	if (preempt_count() & PREEMPT_ACTIVE)
		state = TASK_RUNNING | TASK_STATE_MAX;
#endif	/* CONFIG_PREEMPT */

	return state;
}

#elif (LINUX_VERSION_CODE >= KERNEL_VERSION(3,13,0))

static inline long __trace_sched_switch_state(struct task_struct *p)
{
	long state = p->state;

#ifdef CONFIG_PREEMPT
	/*
	 * For all intents and purposes a preempted task is a running task.
	 */
	if (task_preempt_count(p) & PREEMPT_ACTIVE)
		state = TASK_RUNNING | TASK_STATE_MAX;
#endif

	return state;
}

#elif (LINUX_VERSION_CODE >= KERNEL_VERSION(3,2,0))

static inline long __trace_sched_switch_state(struct task_struct *p)
{
	long state = p->state;

#ifdef CONFIG_PREEMPT
	/*
	 * For all intents and purposes a preempted task is a running task.
	 */
	if (task_thread_info(p)->preempt_count & PREEMPT_ACTIVE)
		state = TASK_RUNNING | TASK_STATE_MAX;
#endif

	return state;
}

#elif (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,35))

static inline long __trace_sched_switch_state(struct task_struct *p)
{
	long state = p->state;

#ifdef CONFIG_PREEMPT
	/*
	 * For all intents and purposes a preempted task is a running task.
	 */
	if (task_thread_info(p)->preempt_count & PREEMPT_ACTIVE)
		state = TASK_RUNNING;
#endif

	return state;
}

#endif

#endif /* _TRACE_SCHED_DEF_ */

/*
 * Tracepoint for calling kthread_stop, performed to end a kthread:
 */
LTTNG_TRACEPOINT_EVENT(sched_kthread_stop,

	TP_PROTO(struct task_struct *t),

	TP_ARGS(t),

	TP_FIELDS(
		ctf_array_text(char, comm, t->comm, TASK_COMM_LEN)
		ctf_integer(pid_t, tid, t->pid)
	)
)

/*
 * Tracepoint for the return value of the kthread stopping:
 */
LTTNG_TRACEPOINT_EVENT(sched_kthread_stop_ret,

	TP_PROTO(int ret),

	TP_ARGS(ret),

	TP_FIELDS(
		ctf_integer(int, ret, ret)
	)
)

/*
 * Tracepoint for waking up a task:
 */
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,3,0))
LTTNG_TRACEPOINT_EVENT_CLASS(sched_wakeup_template,

	TP_PROTO(struct task_struct *p),

	TP_ARGS(p),

	TP_FIELDS(
		ctf_array_text(char, comm, p->comm, TASK_COMM_LEN)
		ctf_integer(pid_t, tid, p->pid)
		ctf_integer(int, prio, p->prio)
		ctf_integer(int, target_cpu, task_cpu(p))
	)
)
#else /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,3,0)) */
LTTNG_TRACEPOINT_EVENT_CLASS(sched_wakeup_template,

#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,35))
	TP_PROTO(struct task_struct *p, int success),

	TP_ARGS(p, success),
#else
	TP_PROTO(struct rq *rq, struct task_struct *p, int success),

	TP_ARGS(rq, p, success),
#endif

	TP_FIELDS(
		ctf_array_text(char, comm, p->comm, TASK_COMM_LEN)
		ctf_integer(pid_t, tid, p->pid)
		ctf_integer(int, prio, p->prio)
		ctf_integer(int, success, success)
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,32))
		ctf_integer(int, target_cpu, task_cpu(p))
#endif
	)
)
#endif /* #else #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,3,0)) */

#if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,3,0))

/*
 * Tracepoint called when waking a task; this tracepoint is guaranteed to be
 * called from the waking context.
 */
LTTNG_TRACEPOINT_EVENT_INSTANCE(sched_wakeup_template, sched_waking,
	     TP_PROTO(struct task_struct *p),
	     TP_ARGS(p))

/*
 * Tracepoint called when the task is actually woken; p->state == TASK_RUNNNG.
 * It it not always called from the waking context.
 */
LTTNG_TRACEPOINT_EVENT_INSTANCE(sched_wakeup_template, sched_wakeup,
	     TP_PROTO(struct task_struct *p),
	     TP_ARGS(p))

/*
 * Tracepoint for waking up a new task:
 */
LTTNG_TRACEPOINT_EVENT_INSTANCE(sched_wakeup_template, sched_wakeup_new,
	     TP_PROTO(struct task_struct *p),
	     TP_ARGS(p))

#elif (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,35))

LTTNG_TRACEPOINT_EVENT_INSTANCE(sched_wakeup_template, sched_wakeup,
	     TP_PROTO(struct task_struct *p, int success),
	     TP_ARGS(p, success))

/*
 * Tracepoint for waking up a new task:
 */
LTTNG_TRACEPOINT_EVENT_INSTANCE(sched_wakeup_template, sched_wakeup_new,
	     TP_PROTO(struct task_struct *p, int success),
	     TP_ARGS(p, success))

#else /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,35)) */

LTTNG_TRACEPOINT_EVENT_INSTANCE(sched_wakeup_template, sched_wakeup,
	     TP_PROTO(struct rq *rq, struct task_struct *p, int success),
	     TP_ARGS(rq, p, success))

/*
 * Tracepoint for waking up a new task:
 */
LTTNG_TRACEPOINT_EVENT_INSTANCE(sched_wakeup_template, sched_wakeup_new,
	     TP_PROTO(struct rq *rq, struct task_struct *p, int success),
	     TP_ARGS(rq, p, success))

#endif /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,35)) */

/*
 * Tracepoint for task switches, performed by the scheduler:
 */
LTTNG_TRACEPOINT_EVENT(sched_switch,

#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,35))
	TP_PROTO(struct task_struct *prev,
		 struct task_struct *next),

	TP_ARGS(prev, next),
#else /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,35)) */
	TP_PROTO(struct rq *rq, struct task_struct *prev,
		 struct task_struct *next),

	TP_ARGS(rq, prev, next),
#endif /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,35)) */

	TP_FIELDS(
		ctf_array_text(char, prev_comm,	prev->comm, TASK_COMM_LEN)
		ctf_integer(pid_t, prev_tid, prev->pid)
		ctf_integer(int, prev_prio, prev->prio - MAX_RT_PRIO)
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,35))
		ctf_integer(long, prev_state, __trace_sched_switch_state(prev))
#else
		ctf_integer(long, prev_state, prev->state)
#endif
		ctf_array_text(char, next_comm, next->comm, TASK_COMM_LEN)
		ctf_integer(pid_t, next_tid, next->pid)
		ctf_integer(int, next_prio, next->prio - MAX_RT_PRIO)
	)
)

/*
 * Tracepoint for a task being migrated:
 */
LTTNG_TRACEPOINT_EVENT(sched_migrate_task,

	TP_PROTO(struct task_struct *p, int dest_cpu),

	TP_ARGS(p, dest_cpu),

	TP_FIELDS(
		ctf_array_text(char, comm, p->comm, TASK_COMM_LEN)
		ctf_integer(pid_t, tid, p->pid)
		ctf_integer(int, prio, p->prio - MAX_RT_PRIO)
		ctf_integer(int, orig_cpu, task_cpu(p))
		ctf_integer(int, dest_cpu, dest_cpu)
	)
)

LTTNG_TRACEPOINT_EVENT_CLASS(sched_process_template,

	TP_PROTO(struct task_struct *p),

	TP_ARGS(p),

	TP_FIELDS(
		ctf_array_text(char, comm, p->comm, TASK_COMM_LEN)
		ctf_integer(pid_t, tid, p->pid)
		ctf_integer(int, prio, p->prio - MAX_RT_PRIO)
	)
)

/*
 * Tracepoint for freeing a task:
 */
LTTNG_TRACEPOINT_EVENT_INSTANCE(sched_process_template, sched_process_free,
	     TP_PROTO(struct task_struct *p),
	     TP_ARGS(p))
	     

/*
 * Tracepoint for a task exiting:
 */
LTTNG_TRACEPOINT_EVENT_INSTANCE(sched_process_template, sched_process_exit,
	     TP_PROTO(struct task_struct *p),
	     TP_ARGS(p))

/*
 * Tracepoint for waiting on task to unschedule:
 */
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,35))
LTTNG_TRACEPOINT_EVENT_INSTANCE(sched_process_template, sched_wait_task,
	TP_PROTO(struct task_struct *p),
	TP_ARGS(p))
#else /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,35)) */
LTTNG_TRACEPOINT_EVENT_INSTANCE(sched_process_template, sched_wait_task,
	TP_PROTO(struct rq *rq, struct task_struct *p),
	TP_ARGS(rq, p))
#endif /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,35)) */

/*
 * Tracepoint for a waiting task:
 */
LTTNG_TRACEPOINT_EVENT(sched_process_wait,

	TP_PROTO(struct pid *pid),

	TP_ARGS(pid),

	TP_FIELDS(
		ctf_array_text(char, comm, current->comm, TASK_COMM_LEN)
		ctf_integer(pid_t, tid, pid_nr(pid))
		ctf_integer(int, prio, current->prio - MAX_RT_PRIO)
	)
)

/*
 * Tracepoint for do_fork.
 * Saving both TID and PID information, especially for the child, allows
 * trace analyzers to distinguish between creation of a new process and
 * creation of a new thread. Newly created processes will have child_tid
 * == child_pid, while creation of a thread yields to child_tid !=
 * child_pid.
 */
LTTNG_TRACEPOINT_EVENT_CODE(sched_process_fork,

	TP_PROTO(struct task_struct *parent, struct task_struct *child),

	TP_ARGS(parent, child),

	TP_locvar(
		pid_t vtids[LTTNG_MAX_PID_NS_LEVEL];
		unsigned int ns_level;
	),

	TP_code_pre(
		if (child) {
			struct pid *child_pid;
			unsigned int i;

			child_pid = task_pid(child);
			tp_locvar->ns_level =
				min_t(unsigned int, child_pid->level + 1,
					LTTNG_MAX_PID_NS_LEVEL);
			for (i = 0; i < tp_locvar->ns_level; i++)
				tp_locvar->vtids[i] = child_pid->numbers[i].nr;
		}
	),

	TP_FIELDS(
		ctf_array_text(char, parent_comm, parent->comm, TASK_COMM_LEN)
		ctf_integer(pid_t, parent_tid, parent->pid)
		ctf_integer(pid_t, parent_pid, parent->tgid)
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,8,0))
		ctf_integer(unsigned int, parent_ns_inum,
			({
				unsigned int parent_ns_inum = 0;

				if (parent) {
					struct pid_namespace *pid_ns;

					pid_ns = task_active_pid_ns(parent);
					if (pid_ns)
						parent_ns_inum =
							pid_ns->lttng_proc_inum;
				}
				parent_ns_inum;
			}))
#endif
		ctf_array_text(char, child_comm, child->comm, TASK_COMM_LEN)
		ctf_integer(pid_t, child_tid, child->pid)
		ctf_sequence(pid_t, vtids, tp_locvar->vtids, u8, tp_locvar->ns_level)
		ctf_integer(pid_t, child_pid, child->tgid)
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,8,0))
		ctf_integer(unsigned int, child_ns_inum,
			({
				unsigned int child_ns_inum = 0;

				if (child) {
					struct pid_namespace *pid_ns;

					pid_ns = task_active_pid_ns(child);
					if (pid_ns)
						child_ns_inum =
							pid_ns->lttng_proc_inum;
				}
				child_ns_inum;
			}))
#endif
	),

	TP_code_post()
)

#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,33))
/*
 * Tracepoint for sending a signal:
 */
LTTNG_TRACEPOINT_EVENT(sched_signal_send,

	TP_PROTO(int sig, struct task_struct *p),

	TP_ARGS(sig, p),

	TP_FIELDS(
		ctf_integer(int, sig, sig)
		ctf_array_text(char, comm, p->comm, TASK_COMM_LEN)
		ctf_integer(pid_t, tid, p->pid)
	)
)
#endif

#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,4,0))
/*
 * Tracepoint for exec:
 */
LTTNG_TRACEPOINT_EVENT(sched_process_exec,

	TP_PROTO(struct task_struct *p, pid_t old_pid,
		 struct linux_binprm *bprm),

	TP_ARGS(p, old_pid, bprm),

	TP_FIELDS(
		ctf_string(filename, bprm->filename)
		ctf_integer(pid_t, tid, p->pid)
		ctf_integer(pid_t, old_tid, old_pid)
	)
)
#endif

#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,32))
/*
 * XXX the below sched_stat tracepoints only apply to SCHED_OTHER/BATCH/IDLE
 *     adding sched_stat support to SCHED_FIFO/RR would be welcome.
 */
LTTNG_TRACEPOINT_EVENT_CLASS(sched_stat_template,

	TP_PROTO(struct task_struct *tsk, u64 delay),

	TP_ARGS(tsk, delay),

	TP_FIELDS(
		ctf_array_text(char, comm, tsk->comm, TASK_COMM_LEN)
		ctf_integer(pid_t, tid, tsk->pid)
		ctf_integer(u64, delay, delay)
	)
)


/*
 * Tracepoint for accounting wait time (time the task is runnable
 * but not actually running due to scheduler contention).
 */
LTTNG_TRACEPOINT_EVENT_INSTANCE(sched_stat_template, sched_stat_wait,
	     TP_PROTO(struct task_struct *tsk, u64 delay),
	     TP_ARGS(tsk, delay))

/*
 * Tracepoint for accounting sleep time (time the task is not runnable,
 * including iowait, see below).
 */
LTTNG_TRACEPOINT_EVENT_INSTANCE(sched_stat_template, sched_stat_sleep,
	     TP_PROTO(struct task_struct *tsk, u64 delay),
	     TP_ARGS(tsk, delay))

/*
 * Tracepoint for accounting iowait time (time the task is not runnable
 * due to waiting on IO to complete).
 */
LTTNG_TRACEPOINT_EVENT_INSTANCE(sched_stat_template, sched_stat_iowait,
	     TP_PROTO(struct task_struct *tsk, u64 delay),
	     TP_ARGS(tsk, delay))

#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,3,0))
/*
 * Tracepoint for accounting blocked time (time the task is in uninterruptible).
 */
LTTNG_TRACEPOINT_EVENT_INSTANCE(sched_stat_template, sched_stat_blocked,
	     TP_PROTO(struct task_struct *tsk, u64 delay),
	     TP_ARGS(tsk, delay))
#endif

/*
 * Tracepoint for accounting runtime (time the task is executing
 * on a CPU).
 */
LTTNG_TRACEPOINT_EVENT(sched_stat_runtime,

	TP_PROTO(struct task_struct *tsk, u64 runtime, u64 vruntime),

	TP_ARGS(tsk, runtime, vruntime),

	TP_FIELDS(
		ctf_array_text(char, comm, tsk->comm, TASK_COMM_LEN)
		ctf_integer(pid_t, tid, tsk->pid)
		ctf_integer(u64, runtime, runtime)
		ctf_integer(u64, vruntime, vruntime)
	)
)
#endif

#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,37))
/*
 * Tracepoint for showing priority inheritance modifying a tasks
 * priority.
 */
LTTNG_TRACEPOINT_EVENT(sched_pi_setprio,

	TP_PROTO(struct task_struct *tsk, int newprio),

	TP_ARGS(tsk, newprio),

	TP_FIELDS(
		ctf_array_text(char, comm, tsk->comm, TASK_COMM_LEN)
		ctf_integer(pid_t, tid, tsk->pid)
		ctf_integer(int, oldprio, tsk->prio - MAX_RT_PRIO)
		ctf_integer(int, newprio, newprio - MAX_RT_PRIO)
	)
)
#endif

#endif /* LTTNG_TRACE_SCHED_H */

/* This part must be outside protection */
#include "../../../probes/define_trace.h"
Commit	Line	Data
f62b389e MD	1	#undef TRACE_SYSTEM
	2	#define TRACE_SYSTEM sched
	3
3bc29f0a MD	4	#if !defined(LTTNG_TRACE_SCHED_H) \|\| defined(TRACE_HEADER_MULTI_READ)
3bc29f0a MD	5	#define LTTNG_TRACE_SCHED_H
f62b389e	6
3bc29f0a	7	#include "../../../probes/lttng-tracepoint-event.h"
f62b389e	8	#include <linux/sched.h>
7bbf55ea	9	#include <linux/pid_namespace.h>
7c68b363 AG	10	#include <linux/binfmts.h>
7c68b363 AG	11	#include <linux/version.h>
090db00e MJ	12	#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,9,0))
	13	#include <linux/sched/rt.h>
	14	#endif
f62b389e	15
7bbf55ea SL	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
f62b389e MD	24	#ifndef _TRACE_SCHED_DEF_
	25	#define _TRACE_SCHED_DEF_
	26
857b6f4f MD	27	#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,19,0))
	28
	29	static inline long __trace_sched_switch_state(struct task_struct *p)
	30	{
	31	long state = p->state;
	32
	33	#ifdef CONFIG_PREEMPT
	34	#ifdef CONFIG_SCHED_DEBUG
	35	BUG_ON(p != current);
	36	#endif /* CONFIG_SCHED_DEBUG */
	37	/*
	38	* For all intents and purposes a preempted task is a running task.
	39	*/
	40	if (preempt_count() & PREEMPT_ACTIVE)
	41	state = TASK_RUNNING \| TASK_STATE_MAX;
	42	#endif /* CONFIG_PREEMPT */
	43
	44	return state;
	45	}
	46
	47	#elif (LINUX_VERSION_CODE >= KERNEL_VERSION(3,13,0))
33673ee7 MD	48
	49	static inline long __trace_sched_switch_state(struct task_struct *p)
	50	{
	51	long state = p->state;
	52
	53	#ifdef CONFIG_PREEMPT
	54	/*
	55	* For all intents and purposes a preempted task is a running task.
	56	*/
	57	if (task_preempt_count(p) & PREEMPT_ACTIVE)
	58	state = TASK_RUNNING \| TASK_STATE_MAX;
	59	#endif
	60
	61	return state;
	62	}
	63
	64	#elif (LINUX_VERSION_CODE >= KERNEL_VERSION(3,2,0))
7c68b363	65
f62b389e MD	66	static inline long __trace_sched_switch_state(struct task_struct *p)
	67	{
	68	long state = p->state;
	69
	70	#ifdef CONFIG_PREEMPT
	71	/*
	72	* For all intents and purposes a preempted task is a running task.
	73	*/
	74	if (task_thread_info(p)->preempt_count & PREEMPT_ACTIVE)
7c68b363	75	state = TASK_RUNNING \| TASK_STATE_MAX;
7c68b363	76	#endif
33673ee7 MD	77
	78	return state;
	79	}
	80
	81	#elif (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,35))
	82
	83	static inline long __trace_sched_switch_state(struct task_struct *p)
	84	{
	85	long state = p->state;
	86
	87	#ifdef CONFIG_PREEMPT
	88	/*
	89	* For all intents and purposes a preempted task is a running task.
	90	*/
	91	if (task_thread_info(p)->preempt_count & PREEMPT_ACTIVE)
	92	state = TASK_RUNNING;
f62b389e MD	93	#endif
	94
	95	return state;
	96	}
	97
7c68b363 AG	98	#endif
7c68b363 AG	99
f62b389e MD	100	#endif /* _TRACE_SCHED_DEF_ */
	101
	102	/*
	103	* Tracepoint for calling kthread_stop, performed to end a kthread:
	104	*/
3bc29f0a	105	LTTNG_TRACEPOINT_EVENT(sched_kthread_stop,
f62b389e MD	106
	107	TP_PROTO(struct task_struct *t),
	108
	109	TP_ARGS(t),
	110
f127e61e MD	111	TP_FIELDS(
	112	ctf_array_text(char, comm, t->comm, TASK_COMM_LEN)
	113	ctf_integer(pid_t, tid, t->pid)
	114	)
f62b389e MD	115	)
	116
	117	/*
	118	* Tracepoint for the return value of the kthread stopping:
	119	*/
3bc29f0a	120	LTTNG_TRACEPOINT_EVENT(sched_kthread_stop_ret,
f62b389e MD	121
	122	TP_PROTO(int ret),
	123
	124	TP_ARGS(ret),
	125
f127e61e MD	126	TP_FIELDS(
	127	ctf_integer(int, ret, ret)
	128	)
f62b389e MD	129	)
	130
	131	/*
	132	* Tracepoint for waking up a task:
	133	*/
ffcf2393 MD	134	#if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,3,0))
	135	LTTNG_TRACEPOINT_EVENT_CLASS(sched_wakeup_template,
	136
	137	TP_PROTO(struct task_struct *p),
	138
	139	TP_ARGS(p),
	140
	141	TP_FIELDS(
	142	ctf_array_text(char, comm, p->comm, TASK_COMM_LEN)
	143	ctf_integer(pid_t, tid, p->pid)
	144	ctf_integer(int, prio, p->prio)
	145	ctf_integer(int, target_cpu, task_cpu(p))
	146	)
	147	)
	148	#else /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,3,0)) */
3bc29f0a	149	LTTNG_TRACEPOINT_EVENT_CLASS(sched_wakeup_template,
f62b389e	150
3a523f5b	151	#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,35))
f62b389e MD	152	TP_PROTO(struct task_struct *p, int success),
	153
	154	TP_ARGS(p, success),
3a523f5b MD	155	#else
	156	TP_PROTO(struct rq rq, struct task_struct p, int success),
	157
	158	TP_ARGS(rq, p, success),
	159	#endif
f62b389e	160
f127e61e MD	161	TP_FIELDS(
	162	ctf_array_text(char, comm, p->comm, TASK_COMM_LEN)
	163	ctf_integer(pid_t, tid, p->pid)
	164	ctf_integer(int, prio, p->prio)
	165	ctf_integer(int, success, success)
7c68b363	166	#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,32))
f127e61e	167	ctf_integer(int, target_cpu, task_cpu(p))
7c68b363	168	#endif
7c68b363	169	)
f62b389e	170	)
ffcf2393	171	#endif /* #else #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,3,0)) */
f62b389e	172
ffcf2393 MD	173	#if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,3,0))
	174
	175	/*
	176	* Tracepoint called when waking a task; this tracepoint is guaranteed to be
	177	* called from the waking context.
	178	*/
	179	LTTNG_TRACEPOINT_EVENT_INSTANCE(sched_wakeup_template, sched_waking,
	180	TP_PROTO(struct task_struct *p),
	181	TP_ARGS(p))
	182
	183	/*
	184	* Tracepoint called when the task is actually woken; p->state == TASK_RUNNNG.
	185	* It it not always called from the waking context.
	186	*/
	187	LTTNG_TRACEPOINT_EVENT_INSTANCE(sched_wakeup_template, sched_wakeup,
	188	TP_PROTO(struct task_struct *p),
	189	TP_ARGS(p))
	190
	191	/*
	192	* Tracepoint for waking up a new task:
	193	*/
	194	LTTNG_TRACEPOINT_EVENT_INSTANCE(sched_wakeup_template, sched_wakeup_new,
	195	TP_PROTO(struct task_struct *p),
	196	TP_ARGS(p))
	197
	198	#elif (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,35))
3a523f5b	199
3bc29f0a	200	LTTNG_TRACEPOINT_EVENT_INSTANCE(sched_wakeup_template, sched_wakeup,
f62b389e MD	201	TP_PROTO(struct task_struct *p, int success),
	202	TP_ARGS(p, success))
	203
	204	/*
	205	* Tracepoint for waking up a new task:
	206	*/
3bc29f0a	207	LTTNG_TRACEPOINT_EVENT_INSTANCE(sched_wakeup_template, sched_wakeup_new,
f62b389e MD	208	TP_PROTO(struct task_struct *p, int success),
	209	TP_ARGS(p, success))
	210
3a523f5b MD	211	#else /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,35)) */
3a523f5b MD	212
3bc29f0a	213	LTTNG_TRACEPOINT_EVENT_INSTANCE(sched_wakeup_template, sched_wakeup,
3a523f5b MD	214	TP_PROTO(struct rq rq, struct task_struct p, int success),
	215	TP_ARGS(rq, p, success))
	216
	217	/*
	218	* Tracepoint for waking up a new task:
	219	*/
3bc29f0a	220	LTTNG_TRACEPOINT_EVENT_INSTANCE(sched_wakeup_template, sched_wakeup_new,
3a523f5b MD	221	TP_PROTO(struct rq rq, struct task_struct p, int success),
	222	TP_ARGS(rq, p, success))
	223
	224	#endif /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,35)) */
	225
f62b389e MD	226	/*
	227	* Tracepoint for task switches, performed by the scheduler:
	228	*/
3bc29f0a	229	LTTNG_TRACEPOINT_EVENT(sched_switch,
f62b389e	230
3a523f5b	231	#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,35))
f62b389e MD	232	TP_PROTO(struct task_struct *prev,
	233	struct task_struct *next),
	234
	235	TP_ARGS(prev, next),
3a523f5b MD	236	#else /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,35)) */
	237	TP_PROTO(struct rq rq, struct task_struct prev,
	238	struct task_struct *next),
	239
	240	TP_ARGS(rq, prev, next),
	241	#endif /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,35)) */
f62b389e	242
f127e61e MD	243	TP_FIELDS(
	244	ctf_array_text(char, prev_comm, prev->comm, TASK_COMM_LEN)
	245	ctf_integer(pid_t, prev_tid, prev->pid)
	246	ctf_integer(int, prev_prio, prev->prio - MAX_RT_PRIO)
7c68b363	247	#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,35))
f127e61e	248	ctf_integer(long, prev_state, __trace_sched_switch_state(prev))
7c68b363	249	#else
f127e61e	250	ctf_integer(long, prev_state, prev->state)
7c68b363	251	#endif
f127e61e MD	252	ctf_array_text(char, next_comm, next->comm, TASK_COMM_LEN)
	253	ctf_integer(pid_t, next_tid, next->pid)
	254	ctf_integer(int, next_prio, next->prio - MAX_RT_PRIO)
	255	)
f62b389e MD	256	)
	257
	258	/*
	259	* Tracepoint for a task being migrated:
	260	*/
3bc29f0a	261	LTTNG_TRACEPOINT_EVENT(sched_migrate_task,
f62b389e MD	262
	263	TP_PROTO(struct task_struct *p, int dest_cpu),
	264
	265	TP_ARGS(p, dest_cpu),
	266
f127e61e MD	267	TP_FIELDS(
	268	ctf_array_text(char, comm, p->comm, TASK_COMM_LEN)
	269	ctf_integer(pid_t, tid, p->pid)
	270	ctf_integer(int, prio, p->prio - MAX_RT_PRIO)
	271	ctf_integer(int, orig_cpu, task_cpu(p))
	272	ctf_integer(int, dest_cpu, dest_cpu)
	273	)
f62b389e MD	274	)
f62b389e MD	275
3bc29f0a	276	LTTNG_TRACEPOINT_EVENT_CLASS(sched_process_template,
f62b389e MD	277
	278	TP_PROTO(struct task_struct *p),
	279
	280	TP_ARGS(p),
	281
f127e61e MD	282	TP_FIELDS(
	283	ctf_array_text(char, comm, p->comm, TASK_COMM_LEN)
	284	ctf_integer(pid_t, tid, p->pid)
	285	ctf_integer(int, prio, p->prio - MAX_RT_PRIO)
	286	)
f62b389e MD	287	)
	288
	289	/*
	290	* Tracepoint for freeing a task:
	291	*/
3bc29f0a	292	LTTNG_TRACEPOINT_EVENT_INSTANCE(sched_process_template, sched_process_free,
f62b389e MD	293	TP_PROTO(struct task_struct *p),
	294	TP_ARGS(p))
	295
	296
	297	/*
	298	* Tracepoint for a task exiting:
	299	*/
3bc29f0a	300	LTTNG_TRACEPOINT_EVENT_INSTANCE(sched_process_template, sched_process_exit,
f62b389e MD	301	TP_PROTO(struct task_struct *p),
	302	TP_ARGS(p))
	303
	304	/*
	305	* Tracepoint for waiting on task to unschedule:
	306	*/
3a523f5b	307	#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,35))
3bc29f0a	308	LTTNG_TRACEPOINT_EVENT_INSTANCE(sched_process_template, sched_wait_task,
f62b389e MD	309	TP_PROTO(struct task_struct *p),
f62b389e MD	310	TP_ARGS(p))
3a523f5b	311	#else /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,35)) */
3bc29f0a	312	LTTNG_TRACEPOINT_EVENT_INSTANCE(sched_process_template, sched_wait_task,
3a523f5b MD	313	TP_PROTO(struct rq rq, struct task_struct p),
	314	TP_ARGS(rq, p))
	315	#endif /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,35)) */
f62b389e MD	316
	317	/*
	318	* Tracepoint for a waiting task:
	319	*/
3bc29f0a	320	LTTNG_TRACEPOINT_EVENT(sched_process_wait,
f62b389e MD	321
	322	TP_PROTO(struct pid *pid),
	323
	324	TP_ARGS(pid),
	325
f127e61e MD	326	TP_FIELDS(
	327	ctf_array_text(char, comm, current->comm, TASK_COMM_LEN)
	328	ctf_integer(pid_t, tid, pid_nr(pid))
	329	ctf_integer(int, prio, current->prio - MAX_RT_PRIO)
	330	)
f62b389e MD	331	)
	332
	333	/*
79b18ef7 MD	334	* Tracepoint for do_fork.
	335	* Saving both TID and PID information, especially for the child, allows
	336	* trace analyzers to distinguish between creation of a new process and
	337	* creation of a new thread. Newly created processes will have child_tid
	338	* == child_pid, while creation of a thread yields to child_tid !=
	339	* child_pid.
f62b389e	340	*/
7bbf55ea	341	LTTNG_TRACEPOINT_EVENT_CODE(sched_process_fork,
f62b389e MD	342
	343	TP_PROTO(struct task_struct parent, struct task_struct child),
	344
	345	TP_ARGS(parent, child),
	346
7bbf55ea SL	347	TP_locvar(
	348	pid_t vtids[LTTNG_MAX_PID_NS_LEVEL];
	349	unsigned int ns_level;
	350	),
	351
265822ae	352	TP_code_pre(
7bbf55ea SL	353	if (child) {
	354	struct pid *child_pid;
	355	unsigned int i;
	356
	357	child_pid = task_pid(child);
	358	tp_locvar->ns_level =
	359	min_t(unsigned int, child_pid->level + 1,
	360	LTTNG_MAX_PID_NS_LEVEL);
	361	for (i = 0; i < tp_locvar->ns_level; i++)
	362	tp_locvar->vtids[i] = child_pid->numbers[i].nr;
	363	}
	364	),
	365
f127e61e MD	366	TP_FIELDS(
	367	ctf_array_text(char, parent_comm, parent->comm, TASK_COMM_LEN)
	368	ctf_integer(pid_t, parent_tid, parent->pid)
	369	ctf_integer(pid_t, parent_pid, parent->tgid)
7bbf55ea SL	370	#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,8,0))
	371	ctf_integer(unsigned int, parent_ns_inum,
	372	({
	373	unsigned int parent_ns_inum = 0;
	374
	375	if (parent) {
	376	struct pid_namespace *pid_ns;
	377
	378	pid_ns = task_active_pid_ns(parent);
	379	if (pid_ns)
	380	parent_ns_inum =
	381	pid_ns->lttng_proc_inum;
	382	}
	383	parent_ns_inum;
	384	}))
	385	#endif
f127e61e MD	386	ctf_array_text(char, child_comm, child->comm, TASK_COMM_LEN)
f127e61e MD	387	ctf_integer(pid_t, child_tid, child->pid)
7bbf55ea	388	ctf_sequence(pid_t, vtids, tp_locvar->vtids, u8, tp_locvar->ns_level)
f127e61e	389	ctf_integer(pid_t, child_pid, child->tgid)
7bbf55ea SL	390	#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,8,0))
	391	ctf_integer(unsigned int, child_ns_inum,
	392	({
	393	unsigned int child_ns_inum = 0;
	394
	395	if (child) {
	396	struct pid_namespace *pid_ns;
	397
	398	pid_ns = task_active_pid_ns(child);
	399	if (pid_ns)
	400	child_ns_inum =
	401	pid_ns->lttng_proc_inum;
	402	}
	403	child_ns_inum;
	404	}))
	405	#endif
265822ae MD	406	),
	407
	408	TP_code_post()
f62b389e MD	409	)
f62b389e MD	410
7c68b363 AG	411	#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,33))
	412	/*
	413	* Tracepoint for sending a signal:
	414	*/
3bc29f0a	415	LTTNG_TRACEPOINT_EVENT(sched_signal_send,
7c68b363 AG	416
	417	TP_PROTO(int sig, struct task_struct *p),
	418
	419	TP_ARGS(sig, p),
	420
f127e61e MD	421	TP_FIELDS(
	422	ctf_integer(int, sig, sig)
	423	ctf_array_text(char, comm, p->comm, TASK_COMM_LEN)
	424	ctf_integer(pid_t, tid, p->pid)
	425	)
7c68b363 AG	426	)
	427	#endif
	428
c94b2508	429	#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,4,0))
46142a81 PW	430	/*
	431	* Tracepoint for exec:
	432	*/
3bc29f0a	433	LTTNG_TRACEPOINT_EVENT(sched_process_exec,
46142a81 PW	434
	435	TP_PROTO(struct task_struct *p, pid_t old_pid,
	436	struct linux_binprm *bprm),
	437
	438	TP_ARGS(p, old_pid, bprm),
	439
f127e61e MD	440	TP_FIELDS(
	441	ctf_string(filename, bprm->filename)
	442	ctf_integer(pid_t, tid, p->pid)
	443	ctf_integer(pid_t, old_tid, old_pid)
	444	)
46142a81	445	)
c94b2508	446	#endif
46142a81	447
7c68b363	448	#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,32))
f62b389e MD	449	/*
	450	* XXX the below sched_stat tracepoints only apply to SCHED_OTHER/BATCH/IDLE
	451	* adding sched_stat support to SCHED_FIFO/RR would be welcome.
	452	*/
3bc29f0a	453	LTTNG_TRACEPOINT_EVENT_CLASS(sched_stat_template,
f62b389e MD	454
	455	TP_PROTO(struct task_struct *tsk, u64 delay),
	456
	457	TP_ARGS(tsk, delay),
	458
f127e61e MD	459	TP_FIELDS(
	460	ctf_array_text(char, comm, tsk->comm, TASK_COMM_LEN)
	461	ctf_integer(pid_t, tid, tsk->pid)
	462	ctf_integer(u64, delay, delay)
f62b389e	463	)
f62b389e MD	464	)
	465
	466
	467	/*
	468	* Tracepoint for accounting wait time (time the task is runnable
	469	* but not actually running due to scheduler contention).
	470	*/
3bc29f0a	471	LTTNG_TRACEPOINT_EVENT_INSTANCE(sched_stat_template, sched_stat_wait,
f62b389e MD	472	TP_PROTO(struct task_struct *tsk, u64 delay),
	473	TP_ARGS(tsk, delay))
	474
	475	/*
	476	* Tracepoint for accounting sleep time (time the task is not runnable,
	477	* including iowait, see below).
	478	*/
3bc29f0a	479	LTTNG_TRACEPOINT_EVENT_INSTANCE(sched_stat_template, sched_stat_sleep,
f62b389e MD	480	TP_PROTO(struct task_struct *tsk, u64 delay),
	481	TP_ARGS(tsk, delay))
	482
	483	/*
	484	* Tracepoint for accounting iowait time (time the task is not runnable
	485	* due to waiting on IO to complete).
	486	*/
3bc29f0a	487	LTTNG_TRACEPOINT_EVENT_INSTANCE(sched_stat_template, sched_stat_iowait,
f62b389e MD	488	TP_PROTO(struct task_struct *tsk, u64 delay),
	489	TP_ARGS(tsk, delay))
	490
7c68b363 AG	491	#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,3,0))
	492	/*
	493	* Tracepoint for accounting blocked time (time the task is in uninterruptible).
	494	*/
3bc29f0a	495	LTTNG_TRACEPOINT_EVENT_INSTANCE(sched_stat_template, sched_stat_blocked,
7c68b363 AG	496	TP_PROTO(struct task_struct *tsk, u64 delay),
	497	TP_ARGS(tsk, delay))
	498	#endif
	499
f62b389e MD	500	/*
	501	* Tracepoint for accounting runtime (time the task is executing
	502	* on a CPU).
	503	*/
3bc29f0a	504	LTTNG_TRACEPOINT_EVENT(sched_stat_runtime,
f62b389e MD	505
	506	TP_PROTO(struct task_struct *tsk, u64 runtime, u64 vruntime),
	507
	508	TP_ARGS(tsk, runtime, vruntime),
	509
f127e61e MD	510	TP_FIELDS(
	511	ctf_array_text(char, comm, tsk->comm, TASK_COMM_LEN)
	512	ctf_integer(pid_t, tid, tsk->pid)
	513	ctf_integer(u64, runtime, runtime)
	514	ctf_integer(u64, vruntime, vruntime)
f62b389e	515	)
f62b389e	516	)
7c68b363	517	#endif
f62b389e	518
7c68b363	519	#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,37))
f62b389e MD	520	/*
	521	* Tracepoint for showing priority inheritance modifying a tasks
	522	* priority.
	523	*/
3bc29f0a	524	LTTNG_TRACEPOINT_EVENT(sched_pi_setprio,
f62b389e MD	525
	526	TP_PROTO(struct task_struct *tsk, int newprio),
	527
	528	TP_ARGS(tsk, newprio),
	529
f127e61e MD	530	TP_FIELDS(
	531	ctf_array_text(char, comm, tsk->comm, TASK_COMM_LEN)
	532	ctf_integer(pid_t, tid, tsk->pid)
	533	ctf_integer(int, oldprio, tsk->prio - MAX_RT_PRIO)
	534	ctf_integer(int, newprio, newprio - MAX_RT_PRIO)
	535	)
f62b389e	536	)
7c68b363	537	#endif
f62b389e	538
3bc29f0a	539	#endif /* LTTNG_TRACE_SCHED_H */
f62b389e MD	540
f62b389e MD	541	/* This part must be outside protection */
5b88d86e	542	#include "../../../probes/define_trace.h"