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

/* SPDX-License-Identifier: GPL-2.0 */
#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(4,4,0))

static inline long __trace_sched_switch_state(bool preempt, struct task_struct *p)
{
#ifdef CONFIG_SCHED_DEBUG
	BUG_ON(p != current);
#endif /* CONFIG_SCHED_DEBUG */
	/*
	 * Preemption ignores task state, therefore preempted tasks are always RUNNING
	 * (we will not have dequeued if state != RUNNING).
	 */
	return preempt ? TASK_RUNNING | TASK_STATE_MAX : p->state;
}

#elif (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;
}

#else

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_RT_KERNEL_RANGE(4,1,10,11, 4,2,0,0) || \
	LTTNG_RT_KERNEL_RANGE(3,18,27,26, 3,19,0,0) || \
	LTTNG_RT_KERNEL_RANGE(3,14,61,63, 3,15,0,0) || \
	LTTNG_RT_KERNEL_RANGE(3,12,54,73, 3,13,0,0) || \
	LTTNG_RT_KERNEL_RANGE(3,10,97,106, 3,11,0,0) || \
	LTTNG_RT_KERNEL_RANGE(3,4,110,139, 3,5,0,0) || \
	LTTNG_RT_KERNEL_RANGE(3,2,77,111, 3,3,0,0))
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 - MAX_RT_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,

	TP_PROTO(struct task_struct *p, int success),

	TP_ARGS(p, success),

	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, success, success)
		ctf_integer(int, target_cpu, task_cpu(p))
	)
)
#endif /* #else #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,3,0)) */

#if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,3,0) || \
	LTTNG_RT_KERNEL_RANGE(4,1,10,11, 4,2,0,0) || \
	LTTNG_RT_KERNEL_RANGE(3,18,27,26, 3,19,0,0) || \
	LTTNG_RT_KERNEL_RANGE(3,14,61,63, 3,15,0,0) || \
	LTTNG_RT_KERNEL_RANGE(3,12,54,73, 3,13,0,0) || \
	LTTNG_RT_KERNEL_RANGE(3,10,97,106, 3,11,0,0) || \
	LTTNG_RT_KERNEL_RANGE(3,4,110,139, 3,5,0,0) || \
	LTTNG_RT_KERNEL_RANGE(3,2,77,111, 3,3,0,0))

/*
 * 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))

#else

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))

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

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

#if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,4,0))
	TP_PROTO(bool preempt,
		 struct task_struct *prev,
		 struct task_struct *next),

	TP_ARGS(preempt, prev, next),
#else
	TP_PROTO(struct task_struct *prev,
		 struct task_struct *next),

	TP_ARGS(prev, next),
#endif /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,4,0)) */

	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(4,4,0))
		ctf_integer(long, prev_state, __trace_sched_switch_state(preempt, prev))
#else
		ctf_integer(long, prev_state, __trace_sched_switch_state(prev))
#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:
 */
LTTNG_TRACEPOINT_EVENT_INSTANCE(sched_process_template, sched_wait_task,
	TP_PROTO(struct task_struct *p),
	TP_ARGS(p))

/*
 * 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(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

/*
 * 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)
	)
)

#if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,12,0) || \
	LTTNG_RT_KERNEL_RANGE(4,9,27,18, 4,10,0,0) || \
	LTTNG_RT_KERNEL_RANGE(4,11,5,1, 4,12,0,0))
/*
 * Tracepoint for showing priority inheritance modifying a tasks
 * priority.
 */
LTTNG_TRACEPOINT_EVENT(sched_pi_setprio,

	TP_PROTO(struct task_struct *tsk, struct task_struct *pi_task),

	TP_ARGS(tsk, pi_task),

	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, pi_task ? pi_task->prio - MAX_RT_PRIO : tsk->prio - MAX_RT_PRIO)
	)
)
#else
/*
 * 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
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)
3bc29f0a MD	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 AG	11	#include <linux/binfmts.h>
7c68b363 AG	12	#include <linux/version.h>
090db00e MJ	13	#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,9,0))
	14	#include <linux/sched/rt.h>
	15	#endif
f62b389e	16
7bbf55ea SL	17	#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,19,0))
	18	#define lttng_proc_inum ns.inum
	19	#else
	20	#define lttng_proc_inum proc_inum
	21	#endif
	22
	23	#define LTTNG_MAX_PID_NS_LEVEL 32
	24
f62b389e MD	25	#ifndef _TRACE_SCHED_DEF_
	26	#define _TRACE_SCHED_DEF_
	27
3ee729fe MD	28	#if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,4,0))
	29
	30	static inline long __trace_sched_switch_state(bool preempt, struct task_struct *p)
	31	{
	32	#ifdef CONFIG_SCHED_DEBUG
	33	BUG_ON(p != current);
	34	#endif /* CONFIG_SCHED_DEBUG */
	35	/*
	36	* Preemption ignores task state, therefore preempted tasks are always RUNNING
	37	* (we will not have dequeued if state != RUNNING).
	38	*/
	39	return preempt ? TASK_RUNNING \| TASK_STATE_MAX : p->state;
	40	}
	41
	42	#elif (LINUX_VERSION_CODE >= KERNEL_VERSION(3,19,0))
857b6f4f MD	43
	44	static inline long __trace_sched_switch_state(struct task_struct *p)
	45	{
	46	long state = p->state;
	47
	48	#ifdef CONFIG_PREEMPT
	49	#ifdef CONFIG_SCHED_DEBUG
	50	BUG_ON(p != current);
	51	#endif /* CONFIG_SCHED_DEBUG */
	52	/*
	53	* For all intents and purposes a preempted task is a running task.
	54	*/
	55	if (preempt_count() & PREEMPT_ACTIVE)
	56	state = TASK_RUNNING \| TASK_STATE_MAX;
	57	#endif /* CONFIG_PREEMPT */
	58
	59	return state;
	60	}
	61
	62	#elif (LINUX_VERSION_CODE >= KERNEL_VERSION(3,13,0))
33673ee7 MD	63
	64	static inline long __trace_sched_switch_state(struct task_struct *p)
	65	{
	66	long state = p->state;
	67
	68	#ifdef CONFIG_PREEMPT
	69	/*
	70	* For all intents and purposes a preempted task is a running task.
	71	*/
	72	if (task_preempt_count(p) & PREEMPT_ACTIVE)
	73	state = TASK_RUNNING \| TASK_STATE_MAX;
	74	#endif
	75
	76	return state;
	77	}
	78
	79	#elif (LINUX_VERSION_CODE >= KERNEL_VERSION(3,2,0))
7c68b363	80
f62b389e MD	81	static inline long __trace_sched_switch_state(struct task_struct *p)
	82	{
	83	long state = p->state;
	84
	85	#ifdef CONFIG_PREEMPT
	86	/*
	87	* For all intents and purposes a preempted task is a running task.
	88	*/
	89	if (task_thread_info(p)->preempt_count & PREEMPT_ACTIVE)
7c68b363	90	state = TASK_RUNNING \| TASK_STATE_MAX;
7c68b363	91	#endif
33673ee7 MD	92
	93	return state;
	94	}
	95
ead65427	96	#else
33673ee7 MD	97
	98	static inline long __trace_sched_switch_state(struct task_struct *p)
	99	{
	100	long state = p->state;
	101
	102	#ifdef CONFIG_PREEMPT
	103	/*
	104	* For all intents and purposes a preempted task is a running task.
	105	*/
	106	if (task_thread_info(p)->preempt_count & PREEMPT_ACTIVE)
	107	state = TASK_RUNNING;
f62b389e MD	108	#endif
	109
	110	return state;
	111	}
	112
7c68b363 AG	113	#endif
7c68b363 AG	114
f62b389e MD	115	#endif /* _TRACE_SCHED_DEF_ */
	116
	117	/*
	118	* Tracepoint for calling kthread_stop, performed to end a kthread:
	119	*/
3bc29f0a	120	LTTNG_TRACEPOINT_EVENT(sched_kthread_stop,
f62b389e MD	121
	122	TP_PROTO(struct task_struct *t),
	123
	124	TP_ARGS(t),
	125
f127e61e MD	126	TP_FIELDS(
	127	ctf_array_text(char, comm, t->comm, TASK_COMM_LEN)
	128	ctf_integer(pid_t, tid, t->pid)
	129	)
f62b389e MD	130	)
	131
	132	/*
	133	* Tracepoint for the return value of the kthread stopping:
	134	*/
3bc29f0a	135	LTTNG_TRACEPOINT_EVENT(sched_kthread_stop_ret,
f62b389e MD	136
	137	TP_PROTO(int ret),
	138
	139	TP_ARGS(ret),
	140
f127e61e MD	141	TP_FIELDS(
	142	ctf_integer(int, ret, ret)
	143	)
f62b389e MD	144	)
	145
	146	/*
	147	* Tracepoint for waking up a task:
	148	*/
b6c74835	149	#if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,3,0) \|\| \
95ff37b6 MJ	150	LTTNG_RT_KERNEL_RANGE(4,1,10,11, 4,2,0,0) \|\| \
	151	LTTNG_RT_KERNEL_RANGE(3,18,27,26, 3,19,0,0) \|\| \
	152	LTTNG_RT_KERNEL_RANGE(3,14,61,63, 3,15,0,0) \|\| \
	153	LTTNG_RT_KERNEL_RANGE(3,12,54,73, 3,13,0,0) \|\| \
	154	LTTNG_RT_KERNEL_RANGE(3,10,97,106, 3,11,0,0) \|\| \
	155	LTTNG_RT_KERNEL_RANGE(3,4,110,139, 3,5,0,0) \|\| \
	156	LTTNG_RT_KERNEL_RANGE(3,2,77,111, 3,3,0,0))
ffcf2393 MD	157	LTTNG_TRACEPOINT_EVENT_CLASS(sched_wakeup_template,
	158
	159	TP_PROTO(struct task_struct *p),
	160
	161	TP_ARGS(p),
	162
	163	TP_FIELDS(
	164	ctf_array_text(char, comm, p->comm, TASK_COMM_LEN)
	165	ctf_integer(pid_t, tid, p->pid)
5aa835c0	166	ctf_integer(int, prio, p->prio - MAX_RT_PRIO)
ffcf2393 MD	167	ctf_integer(int, target_cpu, task_cpu(p))
	168	)
	169	)
	170	#else /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,3,0)) */
3bc29f0a	171	LTTNG_TRACEPOINT_EVENT_CLASS(sched_wakeup_template,
f62b389e MD	172
	173	TP_PROTO(struct task_struct *p, int success),
	174
	175	TP_ARGS(p, success),
	176
f127e61e MD	177	TP_FIELDS(
	178	ctf_array_text(char, comm, p->comm, TASK_COMM_LEN)
	179	ctf_integer(pid_t, tid, p->pid)
5aa835c0	180	ctf_integer(int, prio, p->prio - MAX_RT_PRIO)
f127e61e	181	ctf_integer(int, success, success)
f127e61e	182	ctf_integer(int, target_cpu, task_cpu(p))
7c68b363	183	)
f62b389e	184	)
ffcf2393	185	#endif /* #else #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,3,0)) */
f62b389e	186
b6c74835	187	#if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,3,0) \|\| \
95ff37b6 MJ	188	LTTNG_RT_KERNEL_RANGE(4,1,10,11, 4,2,0,0) \|\| \
	189	LTTNG_RT_KERNEL_RANGE(3,18,27,26, 3,19,0,0) \|\| \
	190	LTTNG_RT_KERNEL_RANGE(3,14,61,63, 3,15,0,0) \|\| \
	191	LTTNG_RT_KERNEL_RANGE(3,12,54,73, 3,13,0,0) \|\| \
	192	LTTNG_RT_KERNEL_RANGE(3,10,97,106, 3,11,0,0) \|\| \
	193	LTTNG_RT_KERNEL_RANGE(3,4,110,139, 3,5,0,0) \|\| \
	194	LTTNG_RT_KERNEL_RANGE(3,2,77,111, 3,3,0,0))
ffcf2393 MD	195
	196	/*
	197	* Tracepoint called when waking a task; this tracepoint is guaranteed to be
	198	* called from the waking context.
	199	*/
	200	LTTNG_TRACEPOINT_EVENT_INSTANCE(sched_wakeup_template, sched_waking,
	201	TP_PROTO(struct task_struct *p),
	202	TP_ARGS(p))
	203
	204	/*
	205	* Tracepoint called when the task is actually woken; p->state == TASK_RUNNNG.
	206	* It it not always called from the waking context.
	207	*/
	208	LTTNG_TRACEPOINT_EVENT_INSTANCE(sched_wakeup_template, sched_wakeup,
	209	TP_PROTO(struct task_struct *p),
	210	TP_ARGS(p))
	211
	212	/*
	213	* Tracepoint for waking up a new task:
	214	*/
	215	LTTNG_TRACEPOINT_EVENT_INSTANCE(sched_wakeup_template, sched_wakeup_new,
	216	TP_PROTO(struct task_struct *p),
	217	TP_ARGS(p))
	218
ead65427	219	#else
3a523f5b	220
3bc29f0a	221	LTTNG_TRACEPOINT_EVENT_INSTANCE(sched_wakeup_template, sched_wakeup,
f62b389e MD	222	TP_PROTO(struct task_struct *p, int success),
	223	TP_ARGS(p, success))
	224
	225	/*
	226	* Tracepoint for waking up a new task:
	227	*/
3bc29f0a	228	LTTNG_TRACEPOINT_EVENT_INSTANCE(sched_wakeup_template, sched_wakeup_new,
f62b389e MD	229	TP_PROTO(struct task_struct *p, int success),
	230	TP_ARGS(p, success))
	231
ead65427	232	#endif /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,3,0)) */
3a523f5b	233
f62b389e MD	234	/*
	235	* Tracepoint for task switches, performed by the scheduler:
	236	*/
3bc29f0a	237	LTTNG_TRACEPOINT_EVENT(sched_switch,
f62b389e	238
3ee729fe MD	239	#if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,4,0))
	240	TP_PROTO(bool preempt,
	241	struct task_struct *prev,
	242	struct task_struct *next),
	243
	244	TP_ARGS(preempt, prev, next),
ead65427	245	#else
f62b389e MD	246	TP_PROTO(struct task_struct *prev,
	247	struct task_struct *next),
	248
	249	TP_ARGS(prev, next),
ead65427	250	#endif /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,4,0)) */
f62b389e	251
f127e61e MD	252	TP_FIELDS(
	253	ctf_array_text(char, prev_comm, prev->comm, TASK_COMM_LEN)
	254	ctf_integer(pid_t, prev_tid, prev->pid)
	255	ctf_integer(int, prev_prio, prev->prio - MAX_RT_PRIO)
3ee729fe MD	256	#if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,4,0))
3ee729fe MD	257	ctf_integer(long, prev_state, __trace_sched_switch_state(preempt, prev))
7c68b363	258	#else
ead65427	259	ctf_integer(long, prev_state, __trace_sched_switch_state(prev))
7c68b363	260	#endif
f127e61e MD	261	ctf_array_text(char, next_comm, next->comm, TASK_COMM_LEN)
	262	ctf_integer(pid_t, next_tid, next->pid)
	263	ctf_integer(int, next_prio, next->prio - MAX_RT_PRIO)
	264	)
f62b389e MD	265	)
	266
	267	/*
	268	* Tracepoint for a task being migrated:
	269	*/
3bc29f0a	270	LTTNG_TRACEPOINT_EVENT(sched_migrate_task,
f62b389e MD	271
	272	TP_PROTO(struct task_struct *p, int dest_cpu),
	273
	274	TP_ARGS(p, dest_cpu),
	275
f127e61e MD	276	TP_FIELDS(
	277	ctf_array_text(char, comm, p->comm, TASK_COMM_LEN)
	278	ctf_integer(pid_t, tid, p->pid)
	279	ctf_integer(int, prio, p->prio - MAX_RT_PRIO)
	280	ctf_integer(int, orig_cpu, task_cpu(p))
	281	ctf_integer(int, dest_cpu, dest_cpu)
	282	)
f62b389e MD	283	)
f62b389e MD	284
3bc29f0a	285	LTTNG_TRACEPOINT_EVENT_CLASS(sched_process_template,
f62b389e MD	286
	287	TP_PROTO(struct task_struct *p),
	288
	289	TP_ARGS(p),
	290
f127e61e MD	291	TP_FIELDS(
	292	ctf_array_text(char, comm, p->comm, TASK_COMM_LEN)
	293	ctf_integer(pid_t, tid, p->pid)
	294	ctf_integer(int, prio, p->prio - MAX_RT_PRIO)
	295	)
f62b389e MD	296	)
	297
	298	/*
	299	* Tracepoint for freeing a task:
	300	*/
3bc29f0a	301	LTTNG_TRACEPOINT_EVENT_INSTANCE(sched_process_template, sched_process_free,
f62b389e MD	302	TP_PROTO(struct task_struct *p),
f62b389e MD	303	TP_ARGS(p))
216b6baa	304
f62b389e MD	305
	306	/*
	307	* Tracepoint for a task exiting:
	308	*/
3bc29f0a	309	LTTNG_TRACEPOINT_EVENT_INSTANCE(sched_process_template, sched_process_exit,
f62b389e MD	310	TP_PROTO(struct task_struct *p),
	311	TP_ARGS(p))
	312
	313	/*
	314	* Tracepoint for waiting on task to unschedule:
	315	*/
3bc29f0a	316	LTTNG_TRACEPOINT_EVENT_INSTANCE(sched_process_template, sched_wait_task,
f62b389e MD	317	TP_PROTO(struct task_struct *p),
	318	TP_ARGS(p))
	319
	320	/*
	321	* Tracepoint for a waiting task:
	322	*/
3bc29f0a	323	LTTNG_TRACEPOINT_EVENT(sched_process_wait,
f62b389e MD	324
	325	TP_PROTO(struct pid *pid),
	326
	327	TP_ARGS(pid),
	328
f127e61e MD	329	TP_FIELDS(
	330	ctf_array_text(char, comm, current->comm, TASK_COMM_LEN)
	331	ctf_integer(pid_t, tid, pid_nr(pid))
	332	ctf_integer(int, prio, current->prio - MAX_RT_PRIO)
	333	)
f62b389e MD	334	)
	335
	336	/*
79b18ef7 MD	337	* Tracepoint for do_fork.
	338	* Saving both TID and PID information, especially for the child, allows
	339	* trace analyzers to distinguish between creation of a new process and
	340	* creation of a new thread. Newly created processes will have child_tid
	341	* == child_pid, while creation of a thread yields to child_tid !=
	342	* child_pid.
f62b389e	343	*/
7bbf55ea	344	LTTNG_TRACEPOINT_EVENT_CODE(sched_process_fork,
f62b389e MD	345
	346	TP_PROTO(struct task_struct parent, struct task_struct child),
	347
	348	TP_ARGS(parent, child),
	349
7bbf55ea SL	350	TP_locvar(
	351	pid_t vtids[LTTNG_MAX_PID_NS_LEVEL];
	352	unsigned int ns_level;
	353	),
	354
265822ae	355	TP_code_pre(
7bbf55ea SL	356	if (child) {
	357	struct pid *child_pid;
	358	unsigned int i;
	359
	360	child_pid = task_pid(child);
	361	tp_locvar->ns_level =
	362	min_t(unsigned int, child_pid->level + 1,
	363	LTTNG_MAX_PID_NS_LEVEL);
	364	for (i = 0; i < tp_locvar->ns_level; i++)
	365	tp_locvar->vtids[i] = child_pid->numbers[i].nr;
	366	}
	367	),
	368
f127e61e MD	369	TP_FIELDS(
	370	ctf_array_text(char, parent_comm, parent->comm, TASK_COMM_LEN)
	371	ctf_integer(pid_t, parent_tid, parent->pid)
	372	ctf_integer(pid_t, parent_pid, parent->tgid)
7bbf55ea SL	373	#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,8,0))
	374	ctf_integer(unsigned int, parent_ns_inum,
	375	({
	376	unsigned int parent_ns_inum = 0;
	377
	378	if (parent) {
	379	struct pid_namespace *pid_ns;
	380
	381	pid_ns = task_active_pid_ns(parent);
	382	if (pid_ns)
	383	parent_ns_inum =
	384	pid_ns->lttng_proc_inum;
	385	}
	386	parent_ns_inum;
	387	}))
	388	#endif
f127e61e MD	389	ctf_array_text(char, child_comm, child->comm, TASK_COMM_LEN)
f127e61e MD	390	ctf_integer(pid_t, child_tid, child->pid)
7bbf55ea	391	ctf_sequence(pid_t, vtids, tp_locvar->vtids, u8, tp_locvar->ns_level)
f127e61e	392	ctf_integer(pid_t, child_pid, child->tgid)
7bbf55ea SL	393	#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,8,0))
	394	ctf_integer(unsigned int, child_ns_inum,
	395	({
	396	unsigned int child_ns_inum = 0;
	397
	398	if (child) {
	399	struct pid_namespace *pid_ns;
	400
	401	pid_ns = task_active_pid_ns(child);
	402	if (pid_ns)
	403	child_ns_inum =
	404	pid_ns->lttng_proc_inum;
	405	}
	406	child_ns_inum;
	407	}))
	408	#endif
265822ae MD	409	),
	410
	411	TP_code_post()
f62b389e MD	412	)
f62b389e MD	413
c94b2508	414	#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,4,0))
46142a81 PW	415	/*
	416	* Tracepoint for exec:
	417	*/
3bc29f0a	418	LTTNG_TRACEPOINT_EVENT(sched_process_exec,
46142a81 PW	419
	420	TP_PROTO(struct task_struct *p, pid_t old_pid,
	421	struct linux_binprm *bprm),
	422
	423	TP_ARGS(p, old_pid, bprm),
	424
f127e61e MD	425	TP_FIELDS(
	426	ctf_string(filename, bprm->filename)
	427	ctf_integer(pid_t, tid, p->pid)
	428	ctf_integer(pid_t, old_tid, old_pid)
	429	)
46142a81	430	)
c94b2508	431	#endif
46142a81	432
f62b389e MD	433	/*
	434	* XXX the below sched_stat tracepoints only apply to SCHED_OTHER/BATCH/IDLE
	435	* adding sched_stat support to SCHED_FIFO/RR would be welcome.
	436	*/
3bc29f0a	437	LTTNG_TRACEPOINT_EVENT_CLASS(sched_stat_template,
f62b389e MD	438
	439	TP_PROTO(struct task_struct *tsk, u64 delay),
	440
	441	TP_ARGS(tsk, delay),
	442
f127e61e MD	443	TP_FIELDS(
	444	ctf_array_text(char, comm, tsk->comm, TASK_COMM_LEN)
	445	ctf_integer(pid_t, tid, tsk->pid)
	446	ctf_integer(u64, delay, delay)
f62b389e	447	)
f62b389e MD	448	)
	449
	450
	451	/*
	452	* Tracepoint for accounting wait time (time the task is runnable
	453	* but not actually running due to scheduler contention).
	454	*/
3bc29f0a	455	LTTNG_TRACEPOINT_EVENT_INSTANCE(sched_stat_template, sched_stat_wait,
f62b389e MD	456	TP_PROTO(struct task_struct *tsk, u64 delay),
	457	TP_ARGS(tsk, delay))
	458
	459	/*
	460	* Tracepoint for accounting sleep time (time the task is not runnable,
	461	* including iowait, see below).
	462	*/
3bc29f0a	463	LTTNG_TRACEPOINT_EVENT_INSTANCE(sched_stat_template, sched_stat_sleep,
f62b389e MD	464	TP_PROTO(struct task_struct *tsk, u64 delay),
	465	TP_ARGS(tsk, delay))
	466
	467	/*
	468	* Tracepoint for accounting iowait time (time the task is not runnable
	469	* due to waiting on IO to complete).
	470	*/
3bc29f0a	471	LTTNG_TRACEPOINT_EVENT_INSTANCE(sched_stat_template, sched_stat_iowait,
f62b389e MD	472	TP_PROTO(struct task_struct *tsk, u64 delay),
	473	TP_ARGS(tsk, delay))
	474
7c68b363 AG	475	#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,3,0))
	476	/*
	477	* Tracepoint for accounting blocked time (time the task is in uninterruptible).
	478	*/
3bc29f0a	479	LTTNG_TRACEPOINT_EVENT_INSTANCE(sched_stat_template, sched_stat_blocked,
7c68b363 AG	480	TP_PROTO(struct task_struct *tsk, u64 delay),
	481	TP_ARGS(tsk, delay))
	482	#endif
	483
f62b389e MD	484	/*
	485	* Tracepoint for accounting runtime (time the task is executing
	486	* on a CPU).
	487	*/
3bc29f0a	488	LTTNG_TRACEPOINT_EVENT(sched_stat_runtime,
f62b389e MD	489
	490	TP_PROTO(struct task_struct *tsk, u64 runtime, u64 vruntime),
	491
	492	TP_ARGS(tsk, runtime, vruntime),
	493
f127e61e MD	494	TP_FIELDS(
	495	ctf_array_text(char, comm, tsk->comm, TASK_COMM_LEN)
	496	ctf_integer(pid_t, tid, tsk->pid)
	497	ctf_integer(u64, runtime, runtime)
	498	ctf_integer(u64, vruntime, vruntime)
f62b389e	499	)
f62b389e MD	500	)
f62b389e MD	501
262ab189	502	#if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,12,0) \|\| \
46dded2d MJ	503	LTTNG_RT_KERNEL_RANGE(4,9,27,18, 4,10,0,0) \|\| \
46dded2d MJ	504	LTTNG_RT_KERNEL_RANGE(4,11,5,1, 4,12,0,0))
673e9a03 MJ	505	/*
	506	* Tracepoint for showing priority inheritance modifying a tasks
	507	* priority.
	508	*/
	509	LTTNG_TRACEPOINT_EVENT(sched_pi_setprio,
	510
	511	TP_PROTO(struct task_struct tsk, struct task_struct pi_task),
	512
	513	TP_ARGS(tsk, pi_task),
	514
	515	TP_FIELDS(
	516	ctf_array_text(char, comm, tsk->comm, TASK_COMM_LEN)
	517	ctf_integer(pid_t, tid, tsk->pid)
	518	ctf_integer(int, oldprio, tsk->prio - MAX_RT_PRIO)
	519	ctf_integer(int, newprio, pi_task ? pi_task->prio - MAX_RT_PRIO : tsk->prio - MAX_RT_PRIO)
	520	)
	521	)
ead65427	522	#else
f62b389e MD	523	/*
	524	* Tracepoint for showing priority inheritance modifying a tasks
	525	* priority.
	526	*/
3bc29f0a	527	LTTNG_TRACEPOINT_EVENT(sched_pi_setprio,
f62b389e MD	528
	529	TP_PROTO(struct task_struct *tsk, int newprio),
	530
	531	TP_ARGS(tsk, newprio),
	532
f127e61e MD	533	TP_FIELDS(
	534	ctf_array_text(char, comm, tsk->comm, TASK_COMM_LEN)
	535	ctf_integer(pid_t, tid, tsk->pid)
	536	ctf_integer(int, oldprio, tsk->prio - MAX_RT_PRIO)
	537	ctf_integer(int, newprio, newprio - MAX_RT_PRIO)
	538	)
f62b389e	539	)
7c68b363	540	#endif
f62b389e	541
3bc29f0a	542	#endif /* LTTNG_TRACE_SCHED_H */
f62b389e MD	543
f62b389e MD	544	/* This part must be outside protection */
6ec43db8	545	#include <probes/define_trace.h>