[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
#include <wrapper/namespace.h>

#define LTTNG_MAX_PID_NS_LEVEL 32

#ifndef _TRACE_SCHED_DEF_
#define _TRACE_SCHED_DEF_

#if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,15,0))

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;
}

#elif (LINUX_VERSION_CODE >= KERNEL_VERSION(4,14,0))

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;

        /*
         * __get_task_state() 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 = __get_task_state(p);

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

#elif (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_ns_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_ns_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
a6cf40a4	16	#include <wrapper/namespace.h>
7bbf55ea SL	17
	18	#define LTTNG_MAX_PID_NS_LEVEL 32
	19
f62b389e MD	20	#ifndef _TRACE_SCHED_DEF_
	21	#define _TRACE_SCHED_DEF_
	22
27e6eda7 GAPG	23	#if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,15,0))
	24
	25	static inline long __trace_sched_switch_state(bool preempt, struct task_struct *p)
	26	{
	27	unsigned int state;
	28
	29	#ifdef CONFIG_SCHED_DEBUG
	30	BUG_ON(p != current);
	31	#endif /* CONFIG_SCHED_DEBUG */
	32
	33	/*
	34	* Preemption ignores task state, therefore preempted tasks are always
	35	* RUNNING (we will not have dequeued if state != RUNNING).
	36	*/
	37	if (preempt)
	38	return TASK_REPORT_MAX;
	39
	40	/*
	41	* task_state_index() uses fls() and returns a value from 0-8 range.
	42	* Decrement it by 1 (except TASK_RUNNING state i.e 0) before using
	43	* it for left shift operation to get the correct task->state
	44	* mapping.
	45	*/
	46	state = task_state_index(p);
	47
	48	return state ? (1 << (state - 1)) : state;
	49	}
	50
	51	#elif (LINUX_VERSION_CODE >= KERNEL_VERSION(4,14,0))
	52
	53	static inline long __trace_sched_switch_state(bool preempt, struct task_struct *p)
	54	{
	55	unsigned int state;
	56
	57	#ifdef CONFIG_SCHED_DEBUG
	58	BUG_ON(p != current);
	59	#endif /* CONFIG_SCHED_DEBUG */
	60
	61	/*
	62	* Preemption ignores task state, therefore preempted tasks are always
	63	* RUNNING (we will not have dequeued if state != RUNNING).
	64	*/
	65	if (preempt)
	66	return TASK_REPORT_MAX;
	67
	68	/*
	69	* __get_task_state() uses fls() and returns a value from 0-8 range.
	70	* Decrement it by 1 (except TASK_RUNNING state i.e 0) before using
	71	* it for left shift operation to get the correct task->state
	72	* mapping.
	73	*/
	74	state = __get_task_state(p);
	75
	76	return state ? (1 << (state - 1)) : state;
	77	}
	78
	79	#elif (LINUX_VERSION_CODE >= KERNEL_VERSION(4,4,0))
3ee729fe MD	80
	81	static inline long __trace_sched_switch_state(bool preempt, struct task_struct *p)
	82	{
	83	#ifdef CONFIG_SCHED_DEBUG
	84	BUG_ON(p != current);
	85	#endif /* CONFIG_SCHED_DEBUG */
	86	/*
	87	* Preemption ignores task state, therefore preempted tasks are always RUNNING
	88	* (we will not have dequeued if state != RUNNING).
	89	*/
	90	return preempt ? TASK_RUNNING \| TASK_STATE_MAX : p->state;
	91	}
	92
	93	#elif (LINUX_VERSION_CODE >= KERNEL_VERSION(3,19,0))
857b6f4f MD	94
	95	static inline long __trace_sched_switch_state(struct task_struct *p)
	96	{
	97	long state = p->state;
	98
	99	#ifdef CONFIG_PREEMPT
	100	#ifdef CONFIG_SCHED_DEBUG
	101	BUG_ON(p != current);
	102	#endif /* CONFIG_SCHED_DEBUG */
	103	/*
	104	* For all intents and purposes a preempted task is a running task.
	105	*/
	106	if (preempt_count() & PREEMPT_ACTIVE)
	107	state = TASK_RUNNING \| TASK_STATE_MAX;
	108	#endif /* CONFIG_PREEMPT */
	109
	110	return state;
	111	}
	112
	113	#elif (LINUX_VERSION_CODE >= KERNEL_VERSION(3,13,0))
33673ee7 MD	114
	115	static inline long __trace_sched_switch_state(struct task_struct *p)
	116	{
	117	long state = p->state;
	118
	119	#ifdef CONFIG_PREEMPT
	120	/*
	121	* For all intents and purposes a preempted task is a running task.
	122	*/
	123	if (task_preempt_count(p) & PREEMPT_ACTIVE)
	124	state = TASK_RUNNING \| TASK_STATE_MAX;
	125	#endif
	126
	127	return state;
	128	}
	129
	130	#elif (LINUX_VERSION_CODE >= KERNEL_VERSION(3,2,0))
7c68b363	131
f62b389e MD	132	static inline long __trace_sched_switch_state(struct task_struct *p)
	133	{
	134	long state = p->state;
	135
	136	#ifdef CONFIG_PREEMPT
	137	/*
	138	* For all intents and purposes a preempted task is a running task.
	139	*/
	140	if (task_thread_info(p)->preempt_count & PREEMPT_ACTIVE)
7c68b363	141	state = TASK_RUNNING \| TASK_STATE_MAX;
7c68b363	142	#endif
33673ee7 MD	143
	144	return state;
	145	}
	146
ead65427	147	#else
33673ee7 MD	148
	149	static inline long __trace_sched_switch_state(struct task_struct *p)
	150	{
	151	long state = p->state;
	152
	153	#ifdef CONFIG_PREEMPT
	154	/*
	155	* For all intents and purposes a preempted task is a running task.
	156	*/
	157	if (task_thread_info(p)->preempt_count & PREEMPT_ACTIVE)
	158	state = TASK_RUNNING;
f62b389e MD	159	#endif
	160
	161	return state;
	162	}
	163
7c68b363 AG	164	#endif
7c68b363 AG	165
f62b389e MD	166	#endif /* _TRACE_SCHED_DEF_ */
	167
	168	/*
	169	* Tracepoint for calling kthread_stop, performed to end a kthread:
	170	*/
3bc29f0a	171	LTTNG_TRACEPOINT_EVENT(sched_kthread_stop,
f62b389e MD	172
	173	TP_PROTO(struct task_struct *t),
	174
	175	TP_ARGS(t),
	176
f127e61e MD	177	TP_FIELDS(
	178	ctf_array_text(char, comm, t->comm, TASK_COMM_LEN)
	179	ctf_integer(pid_t, tid, t->pid)
	180	)
f62b389e MD	181	)
	182
	183	/*
	184	* Tracepoint for the return value of the kthread stopping:
	185	*/
3bc29f0a	186	LTTNG_TRACEPOINT_EVENT(sched_kthread_stop_ret,
f62b389e MD	187
	188	TP_PROTO(int ret),
	189
	190	TP_ARGS(ret),
	191
f127e61e MD	192	TP_FIELDS(
	193	ctf_integer(int, ret, ret)
	194	)
f62b389e MD	195	)
	196
	197	/*
	198	* Tracepoint for waking up a task:
	199	*/
b6c74835	200	#if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,3,0) \|\| \
95ff37b6 MJ	201	LTTNG_RT_KERNEL_RANGE(4,1,10,11, 4,2,0,0) \|\| \
	202	LTTNG_RT_KERNEL_RANGE(3,18,27,26, 3,19,0,0) \|\| \
	203	LTTNG_RT_KERNEL_RANGE(3,14,61,63, 3,15,0,0) \|\| \
	204	LTTNG_RT_KERNEL_RANGE(3,12,54,73, 3,13,0,0) \|\| \
	205	LTTNG_RT_KERNEL_RANGE(3,10,97,106, 3,11,0,0) \|\| \
	206	LTTNG_RT_KERNEL_RANGE(3,4,110,139, 3,5,0,0) \|\| \
	207	LTTNG_RT_KERNEL_RANGE(3,2,77,111, 3,3,0,0))
ffcf2393 MD	208	LTTNG_TRACEPOINT_EVENT_CLASS(sched_wakeup_template,
	209
	210	TP_PROTO(struct task_struct *p),
	211
	212	TP_ARGS(p),
	213
	214	TP_FIELDS(
	215	ctf_array_text(char, comm, p->comm, TASK_COMM_LEN)
	216	ctf_integer(pid_t, tid, p->pid)
5aa835c0	217	ctf_integer(int, prio, p->prio - MAX_RT_PRIO)
ffcf2393 MD	218	ctf_integer(int, target_cpu, task_cpu(p))
	219	)
	220	)
	221	#else /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,3,0)) */
3bc29f0a	222	LTTNG_TRACEPOINT_EVENT_CLASS(sched_wakeup_template,
f62b389e MD	223
	224	TP_PROTO(struct task_struct *p, int success),
	225
	226	TP_ARGS(p, success),
	227
f127e61e MD	228	TP_FIELDS(
	229	ctf_array_text(char, comm, p->comm, TASK_COMM_LEN)
	230	ctf_integer(pid_t, tid, p->pid)
5aa835c0	231	ctf_integer(int, prio, p->prio - MAX_RT_PRIO)
f127e61e	232	ctf_integer(int, success, success)
f127e61e	233	ctf_integer(int, target_cpu, task_cpu(p))
7c68b363	234	)
f62b389e	235	)
ffcf2393	236	#endif /* #else #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,3,0)) */
f62b389e	237
b6c74835	238	#if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,3,0) \|\| \
95ff37b6 MJ	239	LTTNG_RT_KERNEL_RANGE(4,1,10,11, 4,2,0,0) \|\| \
	240	LTTNG_RT_KERNEL_RANGE(3,18,27,26, 3,19,0,0) \|\| \
	241	LTTNG_RT_KERNEL_RANGE(3,14,61,63, 3,15,0,0) \|\| \
	242	LTTNG_RT_KERNEL_RANGE(3,12,54,73, 3,13,0,0) \|\| \
	243	LTTNG_RT_KERNEL_RANGE(3,10,97,106, 3,11,0,0) \|\| \
	244	LTTNG_RT_KERNEL_RANGE(3,4,110,139, 3,5,0,0) \|\| \
	245	LTTNG_RT_KERNEL_RANGE(3,2,77,111, 3,3,0,0))
ffcf2393 MD	246
	247	/*
	248	* Tracepoint called when waking a task; this tracepoint is guaranteed to be
	249	* called from the waking context.
	250	*/
	251	LTTNG_TRACEPOINT_EVENT_INSTANCE(sched_wakeup_template, sched_waking,
	252	TP_PROTO(struct task_struct *p),
	253	TP_ARGS(p))
	254
	255	/*
	256	* Tracepoint called when the task is actually woken; p->state == TASK_RUNNNG.
	257	* It it not always called from the waking context.
	258	*/
	259	LTTNG_TRACEPOINT_EVENT_INSTANCE(sched_wakeup_template, sched_wakeup,
	260	TP_PROTO(struct task_struct *p),
	261	TP_ARGS(p))
	262
	263	/*
	264	* Tracepoint for waking up a new task:
	265	*/
	266	LTTNG_TRACEPOINT_EVENT_INSTANCE(sched_wakeup_template, sched_wakeup_new,
	267	TP_PROTO(struct task_struct *p),
	268	TP_ARGS(p))
	269
ead65427	270	#else
3a523f5b	271
3bc29f0a	272	LTTNG_TRACEPOINT_EVENT_INSTANCE(sched_wakeup_template, sched_wakeup,
f62b389e MD	273	TP_PROTO(struct task_struct *p, int success),
	274	TP_ARGS(p, success))
	275
	276	/*
	277	* Tracepoint for waking up a new task:
	278	*/
3bc29f0a	279	LTTNG_TRACEPOINT_EVENT_INSTANCE(sched_wakeup_template, sched_wakeup_new,
f62b389e MD	280	TP_PROTO(struct task_struct *p, int success),
	281	TP_ARGS(p, success))
	282
ead65427	283	#endif /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,3,0)) */
3a523f5b	284
f62b389e MD	285	/*
	286	* Tracepoint for task switches, performed by the scheduler:
	287	*/
3bc29f0a	288	LTTNG_TRACEPOINT_EVENT(sched_switch,
f62b389e	289
3ee729fe MD	290	#if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,4,0))
	291	TP_PROTO(bool preempt,
	292	struct task_struct *prev,
	293	struct task_struct *next),
	294
	295	TP_ARGS(preempt, prev, next),
ead65427	296	#else
f62b389e MD	297	TP_PROTO(struct task_struct *prev,
	298	struct task_struct *next),
	299
	300	TP_ARGS(prev, next),
ead65427	301	#endif /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,4,0)) */
f62b389e	302
f127e61e MD	303	TP_FIELDS(
	304	ctf_array_text(char, prev_comm, prev->comm, TASK_COMM_LEN)
	305	ctf_integer(pid_t, prev_tid, prev->pid)
	306	ctf_integer(int, prev_prio, prev->prio - MAX_RT_PRIO)
3ee729fe MD	307	#if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,4,0))
3ee729fe MD	308	ctf_integer(long, prev_state, __trace_sched_switch_state(preempt, prev))
7c68b363	309	#else
ead65427	310	ctf_integer(long, prev_state, __trace_sched_switch_state(prev))
7c68b363	311	#endif
f127e61e MD	312	ctf_array_text(char, next_comm, next->comm, TASK_COMM_LEN)
	313	ctf_integer(pid_t, next_tid, next->pid)
	314	ctf_integer(int, next_prio, next->prio - MAX_RT_PRIO)
	315	)
f62b389e MD	316	)
	317
	318	/*
	319	* Tracepoint for a task being migrated:
	320	*/
3bc29f0a	321	LTTNG_TRACEPOINT_EVENT(sched_migrate_task,
f62b389e MD	322
	323	TP_PROTO(struct task_struct *p, int dest_cpu),
	324
	325	TP_ARGS(p, dest_cpu),
	326
f127e61e MD	327	TP_FIELDS(
	328	ctf_array_text(char, comm, p->comm, TASK_COMM_LEN)
	329	ctf_integer(pid_t, tid, p->pid)
	330	ctf_integer(int, prio, p->prio - MAX_RT_PRIO)
	331	ctf_integer(int, orig_cpu, task_cpu(p))
	332	ctf_integer(int, dest_cpu, dest_cpu)
	333	)
f62b389e MD	334	)
f62b389e MD	335
3bc29f0a	336	LTTNG_TRACEPOINT_EVENT_CLASS(sched_process_template,
f62b389e MD	337
	338	TP_PROTO(struct task_struct *p),
	339
	340	TP_ARGS(p),
	341
f127e61e MD	342	TP_FIELDS(
	343	ctf_array_text(char, comm, p->comm, TASK_COMM_LEN)
	344	ctf_integer(pid_t, tid, p->pid)
	345	ctf_integer(int, prio, p->prio - MAX_RT_PRIO)
	346	)
f62b389e MD	347	)
	348
	349	/*
	350	* Tracepoint for freeing a task:
	351	*/
3bc29f0a	352	LTTNG_TRACEPOINT_EVENT_INSTANCE(sched_process_template, sched_process_free,
f62b389e MD	353	TP_PROTO(struct task_struct *p),
f62b389e MD	354	TP_ARGS(p))
216b6baa	355
f62b389e MD	356
	357	/*
	358	* Tracepoint for a task exiting:
	359	*/
3bc29f0a	360	LTTNG_TRACEPOINT_EVENT_INSTANCE(sched_process_template, sched_process_exit,
f62b389e MD	361	TP_PROTO(struct task_struct *p),
	362	TP_ARGS(p))
	363
	364	/*
	365	* Tracepoint for waiting on task to unschedule:
	366	*/
3bc29f0a	367	LTTNG_TRACEPOINT_EVENT_INSTANCE(sched_process_template, sched_wait_task,
f62b389e MD	368	TP_PROTO(struct task_struct *p),
	369	TP_ARGS(p))
	370
	371	/*
	372	* Tracepoint for a waiting task:
	373	*/
3bc29f0a	374	LTTNG_TRACEPOINT_EVENT(sched_process_wait,
f62b389e MD	375
	376	TP_PROTO(struct pid *pid),
	377
	378	TP_ARGS(pid),
	379
f127e61e MD	380	TP_FIELDS(
	381	ctf_array_text(char, comm, current->comm, TASK_COMM_LEN)
	382	ctf_integer(pid_t, tid, pid_nr(pid))
	383	ctf_integer(int, prio, current->prio - MAX_RT_PRIO)
	384	)
f62b389e MD	385	)
	386
	387	/*
79b18ef7 MD	388	* Tracepoint for do_fork.
	389	* Saving both TID and PID information, especially for the child, allows
	390	* trace analyzers to distinguish between creation of a new process and
	391	* creation of a new thread. Newly created processes will have child_tid
	392	* == child_pid, while creation of a thread yields to child_tid !=
	393	* child_pid.
f62b389e	394	*/
7bbf55ea	395	LTTNG_TRACEPOINT_EVENT_CODE(sched_process_fork,
f62b389e MD	396
	397	TP_PROTO(struct task_struct parent, struct task_struct child),
	398
	399	TP_ARGS(parent, child),
	400
7bbf55ea SL	401	TP_locvar(
	402	pid_t vtids[LTTNG_MAX_PID_NS_LEVEL];
	403	unsigned int ns_level;
	404	),
	405
265822ae	406	TP_code_pre(
7bbf55ea SL	407	if (child) {
	408	struct pid *child_pid;
	409	unsigned int i;
	410
	411	child_pid = task_pid(child);
	412	tp_locvar->ns_level =
	413	min_t(unsigned int, child_pid->level + 1,
	414	LTTNG_MAX_PID_NS_LEVEL);
	415	for (i = 0; i < tp_locvar->ns_level; i++)
	416	tp_locvar->vtids[i] = child_pid->numbers[i].nr;
	417	}
	418	),
	419
f127e61e MD	420	TP_FIELDS(
	421	ctf_array_text(char, parent_comm, parent->comm, TASK_COMM_LEN)
	422	ctf_integer(pid_t, parent_tid, parent->pid)
	423	ctf_integer(pid_t, parent_pid, parent->tgid)
7bbf55ea SL	424	#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,8,0))
	425	ctf_integer(unsigned int, parent_ns_inum,
	426	({
	427	unsigned int parent_ns_inum = 0;
	428
	429	if (parent) {
	430	struct pid_namespace *pid_ns;
	431
	432	pid_ns = task_active_pid_ns(parent);
	433	if (pid_ns)
	434	parent_ns_inum =
a6cf40a4	435	pid_ns->lttng_ns_inum;
7bbf55ea SL	436	}
	437	parent_ns_inum;
	438	}))
	439	#endif
f127e61e MD	440	ctf_array_text(char, child_comm, child->comm, TASK_COMM_LEN)
f127e61e MD	441	ctf_integer(pid_t, child_tid, child->pid)
7bbf55ea	442	ctf_sequence(pid_t, vtids, tp_locvar->vtids, u8, tp_locvar->ns_level)
f127e61e	443	ctf_integer(pid_t, child_pid, child->tgid)
7bbf55ea SL	444	#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,8,0))
	445	ctf_integer(unsigned int, child_ns_inum,
	446	({
	447	unsigned int child_ns_inum = 0;
	448
	449	if (child) {
	450	struct pid_namespace *pid_ns;
	451
	452	pid_ns = task_active_pid_ns(child);
	453	if (pid_ns)
	454	child_ns_inum =
a6cf40a4	455	pid_ns->lttng_ns_inum;
7bbf55ea SL	456	}
	457	child_ns_inum;
	458	}))
	459	#endif
265822ae MD	460	),
	461
	462	TP_code_post()
f62b389e MD	463	)
f62b389e MD	464
c94b2508	465	#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,4,0))
46142a81 PW	466	/*
	467	* Tracepoint for exec:
	468	*/
3bc29f0a	469	LTTNG_TRACEPOINT_EVENT(sched_process_exec,
46142a81 PW	470
	471	TP_PROTO(struct task_struct *p, pid_t old_pid,
	472	struct linux_binprm *bprm),
	473
	474	TP_ARGS(p, old_pid, bprm),
	475
f127e61e MD	476	TP_FIELDS(
	477	ctf_string(filename, bprm->filename)
	478	ctf_integer(pid_t, tid, p->pid)
	479	ctf_integer(pid_t, old_tid, old_pid)
	480	)
46142a81	481	)
c94b2508	482	#endif
46142a81	483
f62b389e MD	484	/*
	485	* XXX the below sched_stat tracepoints only apply to SCHED_OTHER/BATCH/IDLE
	486	* adding sched_stat support to SCHED_FIFO/RR would be welcome.
	487	*/
3bc29f0a	488	LTTNG_TRACEPOINT_EVENT_CLASS(sched_stat_template,
f62b389e MD	489
	490	TP_PROTO(struct task_struct *tsk, u64 delay),
	491
	492	TP_ARGS(tsk, delay),
	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, delay, delay)
f62b389e	498	)
f62b389e MD	499	)
	500
	501
	502	/*
	503	* Tracepoint for accounting wait time (time the task is runnable
	504	* but not actually running due to scheduler contention).
	505	*/
3bc29f0a	506	LTTNG_TRACEPOINT_EVENT_INSTANCE(sched_stat_template, sched_stat_wait,
f62b389e MD	507	TP_PROTO(struct task_struct *tsk, u64 delay),
	508	TP_ARGS(tsk, delay))
	509
	510	/*
	511	* Tracepoint for accounting sleep time (time the task is not runnable,
	512	* including iowait, see below).
	513	*/
3bc29f0a	514	LTTNG_TRACEPOINT_EVENT_INSTANCE(sched_stat_template, sched_stat_sleep,
f62b389e MD	515	TP_PROTO(struct task_struct *tsk, u64 delay),
	516	TP_ARGS(tsk, delay))
	517
	518	/*
	519	* Tracepoint for accounting iowait time (time the task is not runnable
	520	* due to waiting on IO to complete).
	521	*/
3bc29f0a	522	LTTNG_TRACEPOINT_EVENT_INSTANCE(sched_stat_template, sched_stat_iowait,
f62b389e MD	523	TP_PROTO(struct task_struct *tsk, u64 delay),
	524	TP_ARGS(tsk, delay))
	525
7c68b363 AG	526	#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,3,0))
	527	/*
	528	* Tracepoint for accounting blocked time (time the task is in uninterruptible).
	529	*/
3bc29f0a	530	LTTNG_TRACEPOINT_EVENT_INSTANCE(sched_stat_template, sched_stat_blocked,
7c68b363 AG	531	TP_PROTO(struct task_struct *tsk, u64 delay),
	532	TP_ARGS(tsk, delay))
	533	#endif
	534
f62b389e MD	535	/*
	536	* Tracepoint for accounting runtime (time the task is executing
	537	* on a CPU).
	538	*/
3bc29f0a	539	LTTNG_TRACEPOINT_EVENT(sched_stat_runtime,
f62b389e MD	540
	541	TP_PROTO(struct task_struct *tsk, u64 runtime, u64 vruntime),
	542
	543	TP_ARGS(tsk, runtime, vruntime),
	544
f127e61e MD	545	TP_FIELDS(
	546	ctf_array_text(char, comm, tsk->comm, TASK_COMM_LEN)
	547	ctf_integer(pid_t, tid, tsk->pid)
	548	ctf_integer(u64, runtime, runtime)
	549	ctf_integer(u64, vruntime, vruntime)
f62b389e	550	)
f62b389e MD	551	)
f62b389e MD	552
262ab189	553	#if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,12,0) \|\| \
46dded2d MJ	554	LTTNG_RT_KERNEL_RANGE(4,9,27,18, 4,10,0,0) \|\| \
46dded2d MJ	555	LTTNG_RT_KERNEL_RANGE(4,11,5,1, 4,12,0,0))
673e9a03 MJ	556	/*
	557	* Tracepoint for showing priority inheritance modifying a tasks
	558	* priority.
	559	*/
	560	LTTNG_TRACEPOINT_EVENT(sched_pi_setprio,
	561
	562	TP_PROTO(struct task_struct tsk, struct task_struct pi_task),
	563
	564	TP_ARGS(tsk, pi_task),
	565
	566	TP_FIELDS(
	567	ctf_array_text(char, comm, tsk->comm, TASK_COMM_LEN)
	568	ctf_integer(pid_t, tid, tsk->pid)
	569	ctf_integer(int, oldprio, tsk->prio - MAX_RT_PRIO)
	570	ctf_integer(int, newprio, pi_task ? pi_task->prio - MAX_RT_PRIO : tsk->prio - MAX_RT_PRIO)
	571	)
	572	)
ead65427	573	#else
f62b389e MD	574	/*
	575	* Tracepoint for showing priority inheritance modifying a tasks
	576	* priority.
	577	*/
3bc29f0a	578	LTTNG_TRACEPOINT_EVENT(sched_pi_setprio,
f62b389e MD	579
	580	TP_PROTO(struct task_struct *tsk, int newprio),
	581
	582	TP_ARGS(tsk, newprio),
	583
f127e61e MD	584	TP_FIELDS(
	585	ctf_array_text(char, comm, tsk->comm, TASK_COMM_LEN)
	586	ctf_integer(pid_t, tid, tsk->pid)
	587	ctf_integer(int, oldprio, tsk->prio - MAX_RT_PRIO)
	588	ctf_integer(int, newprio, newprio - MAX_RT_PRIO)
	589	)
f62b389e	590	)
7c68b363	591	#endif
f62b389e	592
3bc29f0a	593	#endif /* LTTNG_TRACE_SCHED_H */
f62b389e MD	594
f62b389e MD	595	/* This part must be outside protection */
6ec43db8	596	#include <probes/define_trace.h>