[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:
 */
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
	)
)

#if (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(
		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
	)
)

#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
	1	#undef TRACE_SYSTEM
	2	#define TRACE_SYSTEM sched
	3
	4	#if !defined(LTTNG_TRACE_SCHED_H) \|\| defined(TRACE_HEADER_MULTI_READ)
	5	#define LTTNG_TRACE_SCHED_H
	6
	7	#include "../../../probes/lttng-tracepoint-event.h"
	8	#include <linux/sched.h>
	9	#include <linux/pid_namespace.h>
	10	#include <linux/binfmts.h>
	11	#include <linux/version.h>
	12	#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,9,0))
	13	#include <linux/sched/rt.h>
	14	#endif
	15
	16	#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,19,0))
	17	#define lttng_proc_inum ns.inum
	18	#else
	19	#define lttng_proc_inum proc_inum
	20	#endif
	21
	22	#define LTTNG_MAX_PID_NS_LEVEL 32
	23
	24	#ifndef _TRACE_SCHED_DEF_
	25	#define _TRACE_SCHED_DEF_
	26
	27	#if (LINUX_VERSION_CODE >= KERNEL_VERSION(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))
	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))
	65
	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)
	75	state = TASK_RUNNING \| TASK_STATE_MAX;
	76	#endif
	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;
	93	#endif
	94
	95	return state;
	96	}
	97
	98	#endif
	99
	100	#endif /* _TRACE_SCHED_DEF_ */
	101
	102	/*
	103	* Tracepoint for calling kthread_stop, performed to end a kthread:
	104	*/
	105	LTTNG_TRACEPOINT_EVENT(sched_kthread_stop,
	106
	107	TP_PROTO(struct task_struct *t),
	108
	109	TP_ARGS(t),
	110
	111	TP_FIELDS(
	112	ctf_array_text(char, comm, t->comm, TASK_COMM_LEN)
	113	ctf_integer(pid_t, tid, t->pid)
	114	)
	115	)
	116
	117	/*
	118	* Tracepoint for the return value of the kthread stopping:
	119	*/
	120	LTTNG_TRACEPOINT_EVENT(sched_kthread_stop_ret,
	121
	122	TP_PROTO(int ret),
	123
	124	TP_ARGS(ret),
	125
	126	TP_FIELDS(
	127	ctf_integer(int, ret, ret)
	128	)
	129	)
	130
	131	/*
	132	* Tracepoint for waking up a task:
	133	*/
	134	LTTNG_TRACEPOINT_EVENT_CLASS(sched_wakeup_template,
	135
	136	#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,35))
	137	TP_PROTO(struct task_struct *p, int success),
	138
	139	TP_ARGS(p, success),
	140	#else
	141	TP_PROTO(struct rq rq, struct task_struct p, int success),
	142
	143	TP_ARGS(rq, p, success),
	144	#endif
	145
	146	TP_FIELDS(
	147	ctf_array_text(char, comm, p->comm, TASK_COMM_LEN)
	148	ctf_integer(pid_t, tid, p->pid)
	149	ctf_integer(int, prio, p->prio)
	150	ctf_integer(int, success, success)
	151	#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,32))
	152	ctf_integer(int, target_cpu, task_cpu(p))
	153	#endif
	154	)
	155	)
	156
	157	#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,35))
	158
	159	LTTNG_TRACEPOINT_EVENT_INSTANCE(sched_wakeup_template, sched_wakeup,
	160	TP_PROTO(struct task_struct *p, int success),
	161	TP_ARGS(p, success))
	162
	163	/*
	164	* Tracepoint for waking up a new task:
	165	*/
	166	LTTNG_TRACEPOINT_EVENT_INSTANCE(sched_wakeup_template, sched_wakeup_new,
	167	TP_PROTO(struct task_struct *p, int success),
	168	TP_ARGS(p, success))
	169
	170	#else /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,35)) */
	171
	172	LTTNG_TRACEPOINT_EVENT_INSTANCE(sched_wakeup_template, sched_wakeup,
	173	TP_PROTO(struct rq rq, struct task_struct p, int success),
	174	TP_ARGS(rq, p, success))
	175
	176	/*
	177	* Tracepoint for waking up a new task:
	178	*/
	179	LTTNG_TRACEPOINT_EVENT_INSTANCE(sched_wakeup_template, sched_wakeup_new,
	180	TP_PROTO(struct rq rq, struct task_struct p, int success),
	181	TP_ARGS(rq, p, success))
	182
	183	#endif /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,35)) */
	184
	185	/*
	186	* Tracepoint for task switches, performed by the scheduler:
	187	*/
	188	LTTNG_TRACEPOINT_EVENT(sched_switch,
	189
	190	#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,35))
	191	TP_PROTO(struct task_struct *prev,
	192	struct task_struct *next),
	193
	194	TP_ARGS(prev, next),
	195	#else /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,35)) */
	196	TP_PROTO(struct rq rq, struct task_struct prev,
	197	struct task_struct *next),
	198
	199	TP_ARGS(rq, prev, next),
	200	#endif /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,35)) */
	201
	202	TP_FIELDS(
	203	ctf_array_text(char, prev_comm, prev->comm, TASK_COMM_LEN)
	204	ctf_integer(pid_t, prev_tid, prev->pid)
	205	ctf_integer(int, prev_prio, prev->prio - MAX_RT_PRIO)
	206	#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,35))
	207	ctf_integer(long, prev_state, __trace_sched_switch_state(prev))
	208	#else
	209	ctf_integer(long, prev_state, prev->state)
	210	#endif
	211	ctf_array_text(char, next_comm, next->comm, TASK_COMM_LEN)
	212	ctf_integer(pid_t, next_tid, next->pid)
	213	ctf_integer(int, next_prio, next->prio - MAX_RT_PRIO)
	214	)
	215	)
	216
	217	/*
	218	* Tracepoint for a task being migrated:
	219	*/
	220	LTTNG_TRACEPOINT_EVENT(sched_migrate_task,
	221
	222	TP_PROTO(struct task_struct *p, int dest_cpu),
	223
	224	TP_ARGS(p, dest_cpu),
	225
	226	TP_FIELDS(
	227	ctf_array_text(char, comm, p->comm, TASK_COMM_LEN)
	228	ctf_integer(pid_t, tid, p->pid)
	229	ctf_integer(int, prio, p->prio - MAX_RT_PRIO)
	230	ctf_integer(int, orig_cpu, task_cpu(p))
	231	ctf_integer(int, dest_cpu, dest_cpu)
	232	)
	233	)
	234
	235	LTTNG_TRACEPOINT_EVENT_CLASS(sched_process_template,
	236
	237	TP_PROTO(struct task_struct *p),
	238
	239	TP_ARGS(p),
	240
	241	TP_FIELDS(
	242	ctf_array_text(char, comm, p->comm, TASK_COMM_LEN)
	243	ctf_integer(pid_t, tid, p->pid)
	244	ctf_integer(int, prio, p->prio - MAX_RT_PRIO)
	245	)
	246	)
	247
	248	/*
	249	* Tracepoint for freeing a task:
	250	*/
	251	LTTNG_TRACEPOINT_EVENT_INSTANCE(sched_process_template, sched_process_free,
	252	TP_PROTO(struct task_struct *p),
	253	TP_ARGS(p))
	254
	255
	256	/*
	257	* Tracepoint for a task exiting:
	258	*/
	259	LTTNG_TRACEPOINT_EVENT_INSTANCE(sched_process_template, sched_process_exit,
	260	TP_PROTO(struct task_struct *p),
	261	TP_ARGS(p))
	262
	263	/*
	264	* Tracepoint for waiting on task to unschedule:
	265	*/
	266	#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,35))
	267	LTTNG_TRACEPOINT_EVENT_INSTANCE(sched_process_template, sched_wait_task,
	268	TP_PROTO(struct task_struct *p),
	269	TP_ARGS(p))
	270	#else /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,35)) */
	271	LTTNG_TRACEPOINT_EVENT_INSTANCE(sched_process_template, sched_wait_task,
	272	TP_PROTO(struct rq rq, struct task_struct p),
	273	TP_ARGS(rq, p))
	274	#endif /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,35)) */
	275
	276	/*
	277	* Tracepoint for a waiting task:
	278	*/
	279	LTTNG_TRACEPOINT_EVENT(sched_process_wait,
	280
	281	TP_PROTO(struct pid *pid),
	282
	283	TP_ARGS(pid),
	284
	285	TP_FIELDS(
	286	ctf_array_text(char, comm, current->comm, TASK_COMM_LEN)
	287	ctf_integer(pid_t, tid, pid_nr(pid))
	288	ctf_integer(int, prio, current->prio - MAX_RT_PRIO)
	289	)
	290	)
	291
	292	/*
	293	* Tracepoint for do_fork.
	294	* Saving both TID and PID information, especially for the child, allows
	295	* trace analyzers to distinguish between creation of a new process and
	296	* creation of a new thread. Newly created processes will have child_tid
	297	* == child_pid, while creation of a thread yields to child_tid !=
	298	* child_pid.
	299	*/
	300	LTTNG_TRACEPOINT_EVENT_CODE(sched_process_fork,
	301
	302	TP_PROTO(struct task_struct parent, struct task_struct child),
	303
	304	TP_ARGS(parent, child),
	305
	306	TP_locvar(
	307	pid_t vtids[LTTNG_MAX_PID_NS_LEVEL];
	308	unsigned int ns_level;
	309	),
	310
	311	TP_code(
	312	if (child) {
	313	struct pid *child_pid;
	314	unsigned int i;
	315
	316	child_pid = task_pid(child);
	317	tp_locvar->ns_level =
	318	min_t(unsigned int, child_pid->level + 1,
	319	LTTNG_MAX_PID_NS_LEVEL);
	320	for (i = 0; i < tp_locvar->ns_level; i++)
	321	tp_locvar->vtids[i] = child_pid->numbers[i].nr;
	322	}
	323	),
	324
	325	TP_FIELDS(
	326	ctf_array_text(char, parent_comm, parent->comm, TASK_COMM_LEN)
	327	ctf_integer(pid_t, parent_tid, parent->pid)
	328	ctf_integer(pid_t, parent_pid, parent->tgid)
	329	#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,8,0))
	330	ctf_integer(unsigned int, parent_ns_inum,
	331	({
	332	unsigned int parent_ns_inum = 0;
	333
	334	if (parent) {
	335	struct pid_namespace *pid_ns;
	336
	337	pid_ns = task_active_pid_ns(parent);
	338	if (pid_ns)
	339	parent_ns_inum =
	340	pid_ns->lttng_proc_inum;
	341	}
	342	parent_ns_inum;
	343	}))
	344	#endif
	345	ctf_array_text(char, child_comm, child->comm, TASK_COMM_LEN)
	346	ctf_integer(pid_t, child_tid, child->pid)
	347	ctf_sequence(pid_t, vtids, tp_locvar->vtids, u8, tp_locvar->ns_level)
	348	ctf_integer(pid_t, child_pid, child->tgid)
	349	#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,8,0))
	350	ctf_integer(unsigned int, child_ns_inum,
	351	({
	352	unsigned int child_ns_inum = 0;
	353
	354	if (child) {
	355	struct pid_namespace *pid_ns;
	356
	357	pid_ns = task_active_pid_ns(child);
	358	if (pid_ns)
	359	child_ns_inum =
	360	pid_ns->lttng_proc_inum;
	361	}
	362	child_ns_inum;
	363	}))
	364	#endif
	365	)
	366	)
	367
	368	#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,33))
	369	/*
	370	* Tracepoint for sending a signal:
	371	*/
	372	LTTNG_TRACEPOINT_EVENT(sched_signal_send,
	373
	374	TP_PROTO(int sig, struct task_struct *p),
	375
	376	TP_ARGS(sig, p),
	377
	378	TP_FIELDS(
	379	ctf_integer(int, sig, sig)
	380	ctf_array_text(char, comm, p->comm, TASK_COMM_LEN)
	381	ctf_integer(pid_t, tid, p->pid)
	382	)
	383	)
	384	#endif
	385
	386	#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,4,0))
	387	/*
	388	* Tracepoint for exec:
	389	*/
	390	LTTNG_TRACEPOINT_EVENT(sched_process_exec,
	391
	392	TP_PROTO(struct task_struct *p, pid_t old_pid,
	393	struct linux_binprm *bprm),
	394
	395	TP_ARGS(p, old_pid, bprm),
	396
	397	TP_FIELDS(
	398	ctf_string(filename, bprm->filename)
	399	ctf_integer(pid_t, tid, p->pid)
	400	ctf_integer(pid_t, old_tid, old_pid)
	401	)
	402	)
	403	#endif
	404
	405	#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,32))
	406	/*
	407	* XXX the below sched_stat tracepoints only apply to SCHED_OTHER/BATCH/IDLE
	408	* adding sched_stat support to SCHED_FIFO/RR would be welcome.
	409	*/
	410	LTTNG_TRACEPOINT_EVENT_CLASS(sched_stat_template,
	411
	412	TP_PROTO(struct task_struct *tsk, u64 delay),
	413
	414	TP_ARGS(tsk, delay),
	415
	416	TP_FIELDS(
	417	ctf_array_text(char, comm, tsk->comm, TASK_COMM_LEN)
	418	ctf_integer(pid_t, tid, tsk->pid)
	419	ctf_integer(u64, delay, delay)
	420	)
	421	)
	422
	423
	424	/*
	425	* Tracepoint for accounting wait time (time the task is runnable
	426	* but not actually running due to scheduler contention).
	427	*/
	428	LTTNG_TRACEPOINT_EVENT_INSTANCE(sched_stat_template, sched_stat_wait,
	429	TP_PROTO(struct task_struct *tsk, u64 delay),
	430	TP_ARGS(tsk, delay))
	431
	432	/*
	433	* Tracepoint for accounting sleep time (time the task is not runnable,
	434	* including iowait, see below).
	435	*/
	436	LTTNG_TRACEPOINT_EVENT_INSTANCE(sched_stat_template, sched_stat_sleep,
	437	TP_PROTO(struct task_struct *tsk, u64 delay),
	438	TP_ARGS(tsk, delay))
	439
	440	/*
	441	* Tracepoint for accounting iowait time (time the task is not runnable
	442	* due to waiting on IO to complete).
	443	*/
	444	LTTNG_TRACEPOINT_EVENT_INSTANCE(sched_stat_template, sched_stat_iowait,
	445	TP_PROTO(struct task_struct *tsk, u64 delay),
	446	TP_ARGS(tsk, delay))
	447
	448	#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,3,0))
	449	/*
	450	* Tracepoint for accounting blocked time (time the task is in uninterruptible).
	451	*/
	452	LTTNG_TRACEPOINT_EVENT_INSTANCE(sched_stat_template, sched_stat_blocked,
	453	TP_PROTO(struct task_struct *tsk, u64 delay),
	454	TP_ARGS(tsk, delay))
	455	#endif
	456
	457	/*
	458	* Tracepoint for accounting runtime (time the task is executing
	459	* on a CPU).
	460	*/
	461	LTTNG_TRACEPOINT_EVENT(sched_stat_runtime,
	462
	463	TP_PROTO(struct task_struct *tsk, u64 runtime, u64 vruntime),
	464
	465	TP_ARGS(tsk, runtime, vruntime),
	466
	467	TP_FIELDS(
	468	ctf_array_text(char, comm, tsk->comm, TASK_COMM_LEN)
	469	ctf_integer(pid_t, tid, tsk->pid)
	470	ctf_integer(u64, runtime, runtime)
	471	ctf_integer(u64, vruntime, vruntime)
	472	)
	473	)
	474	#endif
	475
	476	#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,37))
	477	/*
	478	* Tracepoint for showing priority inheritance modifying a tasks
	479	* priority.
	480	*/
	481	LTTNG_TRACEPOINT_EVENT(sched_pi_setprio,
	482
	483	TP_PROTO(struct task_struct *tsk, int newprio),
	484
	485	TP_ARGS(tsk, newprio),
	486
	487	TP_FIELDS(
	488	ctf_array_text(char, comm, tsk->comm, TASK_COMM_LEN)
	489	ctf_integer(pid_t, tid, tsk->pid)
	490	ctf_integer(int, oldprio, tsk->prio - MAX_RT_PRIO)
	491	ctf_integer(int, newprio, newprio - MAX_RT_PRIO)
	492	)
	493	)
	494	#endif
	495
	496	#endif /* LTTNG_TRACE_SCHED_H */
	497
	498	/* This part must be outside protection */
	499	#include "../../../probes/define_trace.h"