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

/* SPDX-License-Identifier: GPL-2.0-only */
#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/sched/rt.h>

#define LTTNG_MAX_PID_NS_LEVEL 32

#ifndef _TRACE_SCHED_DEF_
#define _TRACE_SCHED_DEF_

static inline long __trace_sched_switch_state(bool preempt, struct task_struct *p)
{
        unsigned int state;

#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).
         */
        if (preempt)
                return TASK_REPORT_MAX;

        /*
         * task_state_index() uses fls() and returns a value from 0-8 range.
         * Decrement it by 1 (except TASK_RUNNING state i.e 0) before using
         * it for left shift operation to get the correct task->state
         * mapping.
         */
        state = task_state_index(p);

        return state ? (1 << (state - 1)) : state;
}

#endif /* _TRACE_SCHED_DEF_ */

/*
 * Enumeration of the task state bitmask.
 * Only bit flags are enumerated here, not composition of states.
 */
LTTNG_TRACEPOINT_ENUM(task_state,
	TP_ENUM_VALUES(
		ctf_enum_value("TASK_RUNNING", TASK_RUNNING)
		ctf_enum_value("TASK_INTERRUPTIBLE", TASK_INTERRUPTIBLE)
		ctf_enum_value("TASK_UNINTERRUPTIBLE", TASK_UNINTERRUPTIBLE)
		ctf_enum_value("TASK_STOPPED", __TASK_STOPPED)
		ctf_enum_value("TASK_TRACED", __TASK_TRACED)
		ctf_enum_value("EXIT_DEAD", EXIT_DEAD)
		ctf_enum_value("EXIT_ZOMBIE", EXIT_ZOMBIE)
		ctf_enum_value("TASK_PARKED", TASK_PARKED)
		ctf_enum_value("TASK_DEAD", TASK_DEAD)
		ctf_enum_value("TASK_WAKEKILL", TASK_WAKEKILL)
		ctf_enum_value("TASK_WAKING", TASK_WAKING)
		ctf_enum_value("TASK_NOLOAD", TASK_NOLOAD)
		ctf_enum_value("TASK_NEW", TASK_NEW)
		ctf_enum_value("TASK_STATE_MAX", TASK_STATE_MAX)
	)
)

/*
 * 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:
 */
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))
	)
)

/*
 * 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))

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

	TP_PROTO(bool preempt,
		 struct task_struct *prev,
		 struct task_struct *next),

	TP_ARGS(preempt, prev, next),

	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)
		ctf_enum(task_state, long, prev_state, __trace_sched_switch_state(preempt, prev))
		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)
		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->ns.inum;
				}
				parent_ns_inum;
			}))
		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)
		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->ns.inum;
				}
				child_ns_inum;
			}))
	),

	TP_code_post()
)

/*
 * 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)
	)
)

/*
 * 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))

/*
 * 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))

/*
 * 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)
	)
)

/*
 * 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)
	)
)

#endif /* LTTNG_TRACE_SCHED_H */

/* This part must be outside protection */
#include <probes/define_trace.h>
Commit	Line	Data
b7cdc182	1	/* SPDX-License-Identifier: GPL-2.0-only */
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	11	#include <linux/binfmts.h>
090db00e	12	#include <linux/sched/rt.h>
7bbf55ea SL	13
	14	#define LTTNG_MAX_PID_NS_LEVEL 32
	15
f62b389e MD	16	#ifndef _TRACE_SCHED_DEF_
	17	#define _TRACE_SCHED_DEF_
	18
27e6eda7 GAPG	19	static inline long __trace_sched_switch_state(bool preempt, struct task_struct *p)
	20	{
	21	unsigned int state;
	22
	23	#ifdef CONFIG_SCHED_DEBUG
	24	BUG_ON(p != current);
	25	#endif /* CONFIG_SCHED_DEBUG */
	26
	27	/*
	28	* Preemption ignores task state, therefore preempted tasks are always
	29	* RUNNING (we will not have dequeued if state != RUNNING).
	30	*/
	31	if (preempt)
	32	return TASK_REPORT_MAX;
	33
	34	/*
	35	* task_state_index() uses fls() and returns a value from 0-8 range.
	36	* Decrement it by 1 (except TASK_RUNNING state i.e 0) before using
	37	* it for left shift operation to get the correct task->state
	38	* mapping.
	39	*/
	40	state = task_state_index(p);
	41
	42	return state ? (1 << (state - 1)) : state;
	43	}
	44
f62b389e MD	45	#endif /* _TRACE_SCHED_DEF_ */
f62b389e MD	46
721caea4 GB	47	/*
	48	* Enumeration of the task state bitmask.
	49	* Only bit flags are enumerated here, not composition of states.
	50	*/
	51	LTTNG_TRACEPOINT_ENUM(task_state,
	52	TP_ENUM_VALUES(
	53	ctf_enum_value("TASK_RUNNING", TASK_RUNNING)
	54	ctf_enum_value("TASK_INTERRUPTIBLE", TASK_INTERRUPTIBLE)
	55	ctf_enum_value("TASK_UNINTERRUPTIBLE", TASK_UNINTERRUPTIBLE)
	56	ctf_enum_value("TASK_STOPPED", __TASK_STOPPED)
	57	ctf_enum_value("TASK_TRACED", __TASK_TRACED)
	58	ctf_enum_value("EXIT_DEAD", EXIT_DEAD)
	59	ctf_enum_value("EXIT_ZOMBIE", EXIT_ZOMBIE)
721caea4	60	ctf_enum_value("TASK_PARKED", TASK_PARKED)
721caea4 GB	61	ctf_enum_value("TASK_DEAD", TASK_DEAD)
	62	ctf_enum_value("TASK_WAKEKILL", TASK_WAKEKILL)
	63	ctf_enum_value("TASK_WAKING", TASK_WAKING)
721caea4	64	ctf_enum_value("TASK_NOLOAD", TASK_NOLOAD)
721caea4	65	ctf_enum_value("TASK_NEW", TASK_NEW)
721caea4 GB	66	ctf_enum_value("TASK_STATE_MAX", TASK_STATE_MAX)
	67	)
	68	)
	69
f62b389e MD	70	/*
	71	* Tracepoint for calling kthread_stop, performed to end a kthread:
	72	*/
3bc29f0a	73	LTTNG_TRACEPOINT_EVENT(sched_kthread_stop,
f62b389e MD	74
	75	TP_PROTO(struct task_struct *t),
	76
	77	TP_ARGS(t),
	78
f127e61e MD	79	TP_FIELDS(
	80	ctf_array_text(char, comm, t->comm, TASK_COMM_LEN)
	81	ctf_integer(pid_t, tid, t->pid)
	82	)
f62b389e MD	83	)
	84
	85	/*
	86	* Tracepoint for the return value of the kthread stopping:
	87	*/
3bc29f0a	88	LTTNG_TRACEPOINT_EVENT(sched_kthread_stop_ret,
f62b389e MD	89
	90	TP_PROTO(int ret),
	91
	92	TP_ARGS(ret),
	93
f127e61e MD	94	TP_FIELDS(
	95	ctf_integer(int, ret, ret)
	96	)
f62b389e MD	97	)
	98
	99	/*
	100	* Tracepoint for waking up a task:
	101	*/
ffcf2393 MD	102	LTTNG_TRACEPOINT_EVENT_CLASS(sched_wakeup_template,
	103
	104	TP_PROTO(struct task_struct *p),
	105
	106	TP_ARGS(p),
	107
	108	TP_FIELDS(
	109	ctf_array_text(char, comm, p->comm, TASK_COMM_LEN)
	110	ctf_integer(pid_t, tid, p->pid)
5aa835c0	111	ctf_integer(int, prio, p->prio - MAX_RT_PRIO)
ffcf2393 MD	112	ctf_integer(int, target_cpu, task_cpu(p))
	113	)
	114	)
ffcf2393 MD	115
	116	/*
	117	* Tracepoint called when waking a task; this tracepoint is guaranteed to be
	118	* called from the waking context.
	119	*/
	120	LTTNG_TRACEPOINT_EVENT_INSTANCE(sched_wakeup_template, sched_waking,
	121	TP_PROTO(struct task_struct *p),
	122	TP_ARGS(p))
	123
	124	/*
	125	* Tracepoint called when the task is actually woken; p->state == TASK_RUNNNG.
	126	* It it not always called from the waking context.
	127	*/
	128	LTTNG_TRACEPOINT_EVENT_INSTANCE(sched_wakeup_template, sched_wakeup,
	129	TP_PROTO(struct task_struct *p),
	130	TP_ARGS(p))
	131
	132	/*
	133	* Tracepoint for waking up a new task:
	134	*/
	135	LTTNG_TRACEPOINT_EVENT_INSTANCE(sched_wakeup_template, sched_wakeup_new,
	136	TP_PROTO(struct task_struct *p),
	137	TP_ARGS(p))
	138
f62b389e MD	139	/*
	140	* Tracepoint for task switches, performed by the scheduler:
	141	*/
3bc29f0a	142	LTTNG_TRACEPOINT_EVENT(sched_switch,
f62b389e	143
3ee729fe MD	144	TP_PROTO(bool preempt,
	145	struct task_struct *prev,
	146	struct task_struct *next),
	147
	148	TP_ARGS(preempt, prev, next),
f62b389e	149
f127e61e MD	150	TP_FIELDS(
	151	ctf_array_text(char, prev_comm, prev->comm, TASK_COMM_LEN)
	152	ctf_integer(pid_t, prev_tid, prev->pid)
	153	ctf_integer(int, prev_prio, prev->prio - MAX_RT_PRIO)
721caea4	154	ctf_enum(task_state, long, prev_state, __trace_sched_switch_state(preempt, prev))
f127e61e MD	155	ctf_array_text(char, next_comm, next->comm, TASK_COMM_LEN)
	156	ctf_integer(pid_t, next_tid, next->pid)
	157	ctf_integer(int, next_prio, next->prio - MAX_RT_PRIO)
	158	)
f62b389e MD	159	)
	160
	161	/*
	162	* Tracepoint for a task being migrated:
	163	*/
3bc29f0a	164	LTTNG_TRACEPOINT_EVENT(sched_migrate_task,
f62b389e MD	165
	166	TP_PROTO(struct task_struct *p, int dest_cpu),
	167
	168	TP_ARGS(p, dest_cpu),
	169
f127e61e MD	170	TP_FIELDS(
	171	ctf_array_text(char, comm, p->comm, TASK_COMM_LEN)
	172	ctf_integer(pid_t, tid, p->pid)
	173	ctf_integer(int, prio, p->prio - MAX_RT_PRIO)
	174	ctf_integer(int, orig_cpu, task_cpu(p))
	175	ctf_integer(int, dest_cpu, dest_cpu)
	176	)
f62b389e MD	177	)
f62b389e MD	178
3bc29f0a	179	LTTNG_TRACEPOINT_EVENT_CLASS(sched_process_template,
f62b389e MD	180
	181	TP_PROTO(struct task_struct *p),
	182
	183	TP_ARGS(p),
	184
f127e61e MD	185	TP_FIELDS(
	186	ctf_array_text(char, comm, p->comm, TASK_COMM_LEN)
	187	ctf_integer(pid_t, tid, p->pid)
	188	ctf_integer(int, prio, p->prio - MAX_RT_PRIO)
	189	)
f62b389e MD	190	)
	191
	192	/*
	193	* Tracepoint for freeing a task:
	194	*/
3bc29f0a	195	LTTNG_TRACEPOINT_EVENT_INSTANCE(sched_process_template, sched_process_free,
f62b389e MD	196	TP_PROTO(struct task_struct *p),
f62b389e MD	197	TP_ARGS(p))
216b6baa	198
f62b389e MD	199
	200	/*
	201	* Tracepoint for a task exiting:
	202	*/
3bc29f0a	203	LTTNG_TRACEPOINT_EVENT_INSTANCE(sched_process_template, sched_process_exit,
f62b389e MD	204	TP_PROTO(struct task_struct *p),
	205	TP_ARGS(p))
	206
	207	/*
	208	* Tracepoint for waiting on task to unschedule:
	209	*/
3bc29f0a	210	LTTNG_TRACEPOINT_EVENT_INSTANCE(sched_process_template, sched_wait_task,
f62b389e MD	211	TP_PROTO(struct task_struct *p),
	212	TP_ARGS(p))
	213
	214	/*
	215	* Tracepoint for a waiting task:
	216	*/
3bc29f0a	217	LTTNG_TRACEPOINT_EVENT(sched_process_wait,
f62b389e MD	218
	219	TP_PROTO(struct pid *pid),
	220
	221	TP_ARGS(pid),
	222
f127e61e MD	223	TP_FIELDS(
	224	ctf_array_text(char, comm, current->comm, TASK_COMM_LEN)
	225	ctf_integer(pid_t, tid, pid_nr(pid))
	226	ctf_integer(int, prio, current->prio - MAX_RT_PRIO)
	227	)
f62b389e MD	228	)
	229
	230	/*
79b18ef7 MD	231	* Tracepoint for do_fork.
	232	* Saving both TID and PID information, especially for the child, allows
	233	* trace analyzers to distinguish between creation of a new process and
	234	* creation of a new thread. Newly created processes will have child_tid
	235	* == child_pid, while creation of a thread yields to child_tid !=
	236	* child_pid.
f62b389e	237	*/
7bbf55ea	238	LTTNG_TRACEPOINT_EVENT_CODE(sched_process_fork,
f62b389e MD	239
	240	TP_PROTO(struct task_struct parent, struct task_struct child),
	241
	242	TP_ARGS(parent, child),
	243
7bbf55ea SL	244	TP_locvar(
	245	pid_t vtids[LTTNG_MAX_PID_NS_LEVEL];
	246	unsigned int ns_level;
	247	),
	248
265822ae	249	TP_code_pre(
7bbf55ea SL	250	if (child) {
	251	struct pid *child_pid;
	252	unsigned int i;
	253
	254	child_pid = task_pid(child);
	255	tp_locvar->ns_level =
	256	min_t(unsigned int, child_pid->level + 1,
	257	LTTNG_MAX_PID_NS_LEVEL);
	258	for (i = 0; i < tp_locvar->ns_level; i++)
	259	tp_locvar->vtids[i] = child_pid->numbers[i].nr;
	260	}
	261	),
	262
f127e61e MD	263	TP_FIELDS(
	264	ctf_array_text(char, parent_comm, parent->comm, TASK_COMM_LEN)
	265	ctf_integer(pid_t, parent_tid, parent->pid)
	266	ctf_integer(pid_t, parent_pid, parent->tgid)
7bbf55ea SL	267	ctf_integer(unsigned int, parent_ns_inum,
	268	({
	269	unsigned int parent_ns_inum = 0;
	270
	271	if (parent) {
	272	struct pid_namespace *pid_ns;
	273
	274	pid_ns = task_active_pid_ns(parent);
	275	if (pid_ns)
	276	parent_ns_inum =
6388029c	277	pid_ns->ns.inum;
7bbf55ea SL	278	}
	279	parent_ns_inum;
	280	}))
f127e61e MD	281	ctf_array_text(char, child_comm, child->comm, TASK_COMM_LEN)
f127e61e MD	282	ctf_integer(pid_t, child_tid, child->pid)
7bbf55ea	283	ctf_sequence(pid_t, vtids, tp_locvar->vtids, u8, tp_locvar->ns_level)
f127e61e	284	ctf_integer(pid_t, child_pid, child->tgid)
7bbf55ea SL	285	ctf_integer(unsigned int, child_ns_inum,
	286	({
	287	unsigned int child_ns_inum = 0;
	288
	289	if (child) {
	290	struct pid_namespace *pid_ns;
	291
	292	pid_ns = task_active_pid_ns(child);
	293	if (pid_ns)
	294	child_ns_inum =
6388029c	295	pid_ns->ns.inum;
7bbf55ea SL	296	}
	297	child_ns_inum;
	298	}))
265822ae MD	299	),
	300
	301	TP_code_post()
f62b389e MD	302	)
f62b389e MD	303
46142a81 PW	304	/*
	305	* Tracepoint for exec:
	306	*/
3bc29f0a	307	LTTNG_TRACEPOINT_EVENT(sched_process_exec,
46142a81 PW	308
	309	TP_PROTO(struct task_struct *p, pid_t old_pid,
	310	struct linux_binprm *bprm),
	311
	312	TP_ARGS(p, old_pid, bprm),
	313
f127e61e MD	314	TP_FIELDS(
	315	ctf_string(filename, bprm->filename)
	316	ctf_integer(pid_t, tid, p->pid)
	317	ctf_integer(pid_t, old_tid, old_pid)
	318	)
46142a81 PW	319	)
46142a81 PW	320
f62b389e MD	321	/*
	322	* XXX the below sched_stat tracepoints only apply to SCHED_OTHER/BATCH/IDLE
	323	* adding sched_stat support to SCHED_FIFO/RR would be welcome.
	324	*/
3bc29f0a	325	LTTNG_TRACEPOINT_EVENT_CLASS(sched_stat_template,
f62b389e MD	326
	327	TP_PROTO(struct task_struct *tsk, u64 delay),
	328
	329	TP_ARGS(tsk, delay),
	330
f127e61e MD	331	TP_FIELDS(
	332	ctf_array_text(char, comm, tsk->comm, TASK_COMM_LEN)
	333	ctf_integer(pid_t, tid, tsk->pid)
	334	ctf_integer(u64, delay, delay)
f62b389e	335	)
f62b389e MD	336	)
	337
	338
	339	/*
	340	* Tracepoint for accounting wait time (time the task is runnable
	341	* but not actually running due to scheduler contention).
	342	*/
3bc29f0a	343	LTTNG_TRACEPOINT_EVENT_INSTANCE(sched_stat_template, sched_stat_wait,
f62b389e MD	344	TP_PROTO(struct task_struct *tsk, u64 delay),
	345	TP_ARGS(tsk, delay))
	346
	347	/*
	348	* Tracepoint for accounting sleep time (time the task is not runnable,
	349	* including iowait, see below).
	350	*/
3bc29f0a	351	LTTNG_TRACEPOINT_EVENT_INSTANCE(sched_stat_template, sched_stat_sleep,
f62b389e MD	352	TP_PROTO(struct task_struct *tsk, u64 delay),
	353	TP_ARGS(tsk, delay))
	354
	355	/*
	356	* Tracepoint for accounting iowait time (time the task is not runnable
	357	* due to waiting on IO to complete).
	358	*/
3bc29f0a	359	LTTNG_TRACEPOINT_EVENT_INSTANCE(sched_stat_template, sched_stat_iowait,
f62b389e MD	360	TP_PROTO(struct task_struct *tsk, u64 delay),
	361	TP_ARGS(tsk, delay))
	362
7c68b363 AG	363	/*
	364	* Tracepoint for accounting blocked time (time the task is in uninterruptible).
	365	*/
3bc29f0a	366	LTTNG_TRACEPOINT_EVENT_INSTANCE(sched_stat_template, sched_stat_blocked,
7c68b363 AG	367	TP_PROTO(struct task_struct *tsk, u64 delay),
7c68b363 AG	368	TP_ARGS(tsk, delay))
7c68b363	369
f62b389e MD	370	/*
	371	* Tracepoint for accounting runtime (time the task is executing
	372	* on a CPU).
	373	*/
3bc29f0a	374	LTTNG_TRACEPOINT_EVENT(sched_stat_runtime,
f62b389e MD	375
	376	TP_PROTO(struct task_struct *tsk, u64 runtime, u64 vruntime),
	377
	378	TP_ARGS(tsk, runtime, vruntime),
	379
f127e61e MD	380	TP_FIELDS(
	381	ctf_array_text(char, comm, tsk->comm, TASK_COMM_LEN)
	382	ctf_integer(pid_t, tid, tsk->pid)
	383	ctf_integer(u64, runtime, runtime)
	384	ctf_integer(u64, vruntime, vruntime)
f62b389e	385	)
f62b389e MD	386	)
f62b389e MD	387
673e9a03 MJ	388	/*
	389	* Tracepoint for showing priority inheritance modifying a tasks
	390	* priority.
	391	*/
	392	LTTNG_TRACEPOINT_EVENT(sched_pi_setprio,
	393
	394	TP_PROTO(struct task_struct tsk, struct task_struct pi_task),
	395
	396	TP_ARGS(tsk, pi_task),
	397
	398	TP_FIELDS(
	399	ctf_array_text(char, comm, tsk->comm, TASK_COMM_LEN)
	400	ctf_integer(pid_t, tid, tsk->pid)
	401	ctf_integer(int, oldprio, tsk->prio - MAX_RT_PRIO)
	402	ctf_integer(int, newprio, pi_task ? pi_task->prio - MAX_RT_PRIO : tsk->prio - MAX_RT_PRIO)
	403	)
	404	)
f62b389e	405
3bc29f0a	406	#endif /* LTTNG_TRACE_SCHED_H */
f62b389e MD	407
f62b389e MD	408	/* This part must be outside protection */
6ec43db8	409	#include <probes/define_trace.h>