#undef TRACE_SYSTEM#define TRACE_SYSTEM timer #if !defined(_TRACE_TIMER_H) || defined(TRACE_HEADER_MULTI_READ)#define _TRACE_TIMER_H #include <linux/tracepoint.h>#include <linux/hrtimer.h>#include <linux/timer.h> /** * timer_init - called when the timer is initialized * @timer: pointer to struct timer_list */TRACE_EVENT(timer_init, TP_PROTO(struct timer_list *timer), TP_ARGS(timer), TP_STRUCT__entry( __field( void *, timer ) ), TP_fast_assign( __entry->timer = timer; ), TP_printk("timer %p", __entry->timer)); /** * timer_start - called when the timer is started * @timer: pointer to struct timer_list * @expires: the timers expiry time */TRACE_EVENT(timer_start, TP_PROTO(struct timer_list *timer, unsigned long expires), TP_ARGS(timer, expires), TP_STRUCT__entry( __field( void *, timer ) __field( void *, function ) __field( unsigned long, expires ) __field( unsigned long, now ) ), TP_fast_assign( __entry->timer = timer; __entry->function = timer->function; __entry->expires = expires; __entry->now = jiffies; ), TP_printk("timer %p: func %pf, expires %lu, timeout %ld", __entry->timer, __entry->function, __entry->expires, (long)__entry->expires - __entry->now)); /** * timer_expire_entry - called immediately before the timer callback * @timer: pointer to struct timer_list * * Allows to determine the timer latency. */TRACE_EVENT(timer_expire_entry, TP_PROTO(struct timer_list *timer), TP_ARGS(timer), TP_STRUCT__entry( __field( void *, timer ) __field( unsigned long, now ) ), TP_fast_assign( __entry->timer = timer; __entry->now = jiffies; ), TP_printk("timer %p: now %lu", __entry->timer, __entry->now)); /** * timer_expire_exit - called immediately after the timer callback returns * @timer: pointer to struct timer_list * * When used in combination with the timer_expire_entry tracepoint we can * determine the runtime of the timer callback function. * * NOTE: Do NOT derefernce timer in TP_fast_assign. The pointer might * be invalid. We solely track the pointer. */TRACE_EVENT(timer_expire_exit, TP_PROTO(struct timer_list *timer), TP_ARGS(timer), TP_STRUCT__entry( __field(void *, timer ) ), TP_fast_assign( __entry->timer = timer; ), TP_printk("timer %p", __entry->timer)); /** * timer_cancel - called when the timer is canceled * @timer: pointer to struct timer_list */TRACE_EVENT(timer_cancel, TP_PROTO(struct timer_list *timer), TP_ARGS(timer), TP_STRUCT__entry( __field( void *, timer ) ), TP_fast_assign( __entry->timer = timer; ), TP_printk("timer %p", __entry->timer)); /** * hrtimer_init - called when the hrtimer is initialized * @timer: pointer to struct hrtimer * @clockid: the hrtimers clock * @mode: the hrtimers mode */TRACE_EVENT(hrtimer_init, TP_PROTO(struct hrtimer *timer, clockid_t clockid, enum hrtimer_mode mode), TP_ARGS(timer, clockid, mode), TP_STRUCT__entry( __field( void *, timer ) __field( clockid_t, clockid ) __field( enum hrtimer_mode, mode ) ), TP_fast_assign( __entry->timer = timer; __entry->clockid = clockid; __entry->mode = mode; ), TP_printk("hrtimer %p, clockid %s, mode %s", __entry->timer, __entry->clockid == CLOCK_REALTIME ? "CLOCK_REALTIME" : "CLOCK_MONOTONIC", __entry->mode == HRTIMER_MODE_ABS ? "HRTIMER_MODE_ABS" : "HRTIMER_MODE_REL")); /** * hrtimer_start - called when the hrtimer is started * @timer: pointer to struct hrtimer */TRACE_EVENT(hrtimer_start, TP_PROTO(struct hrtimer *timer), TP_ARGS(timer), TP_STRUCT__entry( __field( void *, timer ) __field( void *, function ) __field( s64, expires ) __field( s64, softexpires ) ), TP_fast_assign( __entry->timer = timer; __entry->function = timer->function; __entry->expires = hrtimer_get_expires(timer).tv64; __entry->softexpires = hrtimer_get_softexpires(timer).tv64; ), TP_printk("hrtimer %p, func %pf, expires %llu, softexpires %llu", __entry->timer, __entry->function, (unsigned long long)ktime_to_ns((ktime_t) { .tv64 = __entry->expires }), (unsigned long long)ktime_to_ns((ktime_t) { .tv64 = __entry->softexpires }))); /** * htimmer_expire_entry - called immediately before the hrtimer callback * @timer: pointer to struct hrtimer * @now: pointer to variable which contains current time of the * timers base. * * Allows to determine the timer latency. */TRACE_EVENT(hrtimer_expire_entry, TP_PROTO(struct hrtimer *timer, ktime_t *now), TP_ARGS(timer, now), TP_STRUCT__entry( __field( void *, timer ) __field( s64, now ) ), TP_fast_assign( __entry->timer = timer; __entry->now = now->tv64; ), TP_printk("hrtimer %p, now %llu", __entry->timer, (unsigned long long)ktime_to_ns((ktime_t) { .tv64 = __entry->now })) ); /** * hrtimer_expire_exit - called immediately after the hrtimer callback returns * @timer: pointer to struct hrtimer * * When used in combination with the hrtimer_expire_entry tracepoint we can * determine the runtime of the callback function. */TRACE_EVENT(hrtimer_expire_exit, TP_PROTO(struct hrtimer *timer), TP_ARGS(timer), TP_STRUCT__entry( __field( void *, timer ) ), TP_fast_assign( __entry->timer = timer; ), TP_printk("hrtimer %p", __entry->timer)); /** * hrtimer_cancel - called when the hrtimer is canceled * @timer: pointer to struct hrtimer */TRACE_EVENT(hrtimer_cancel, TP_PROTO(struct hrtimer *timer), TP_ARGS(timer), TP_STRUCT__entry( __field( void *, timer ) ), TP_fast_assign( __entry->timer = timer; ), TP_printk("hrtimer %p", __entry->timer)); /** * itimer_state - called when itimer is started or canceled * @which: name of the interval timer * @value: the itimers value, itimer is canceled if value->it_value is * zero, otherwise it is started * @expires: the itimers expiry time */TRACE_EVENT(itimer_state, TP_PROTO(int which, const struct itimerval *const value, cputime_t expires), TP_ARGS(which, value, expires), TP_STRUCT__entry( __field( int, which ) __field( cputime_t, expires ) __field( long, value_sec ) __field( long, value_usec ) __field( long, interval_sec ) __field( long, interval_usec ) ), TP_fast_assign( __entry->which = which; __entry->expires = expires; __entry->value_sec = value->it_value.tv_sec; __entry->value_usec = value->it_value.tv_usec; __entry->interval_sec = value->it_interval.tv_sec; __entry->interval_usec = value->it_interval.tv_usec; ), TP_printk("which %d, expires %lu, it_value %lu.%lu, it_interval %lu.%lu", __entry->which, __entry->expires, __entry->value_sec, __entry->value_usec, __entry->interval_sec, __entry->interval_usec)); /** * itimer_expire - called when itimer expires * @which: type of the interval timer * @pid: pid of the process which owns the timer * @now: current time, used to calculate the latency of itimer */TRACE_EVENT(itimer_expire, TP_PROTO(int which, struct pid *pid, cputime_t now), TP_ARGS(which, pid, now), TP_STRUCT__entry( __field( int , which ) __field( pid_t, pid ) __field( cputime_t, now ) ), TP_fast_assign( __entry->which = which; __entry->now = now; __entry->pid = pid_nr(pid); ), TP_printk("which %d, pid %d, now %lu", __entry->which, (int) __entry->pid, __entry->now)); #endif /* _TRACE_TIMER_H */ /* This part must be outside protection */#include <trace/define_trace.h>
#undef TRACE_SYSTEM
#define TRACE_SYSTEM timer
#if !defined(_TRACE_TIMER_H) || defined(TRACE_HEADER_MULTI_READ)
#define _TRACE_TIMER_H
#include <linux/tracepoint.h>
#include <linux/hrtimer.h>
#include <linux/timer.h>
/**
* timer_init - called when the timer is initialized
* @timer: pointer to struct timer_list
*/
TRACE_EVENT(timer_init,
TP_PROTO(struct timer_list *timer),
TP_ARGS(timer),
TP_STRUCT__entry(
__field( void *, timer )
),
TP_fast_assign(
__entry->timer = timer;
),
TP_printk("timer %p", __entry->timer)
);
/**
* timer_start - called when the timer is started
* @timer: pointer to struct timer_list
* @expires: the timers expiry time
*/
TRACE_EVENT(timer_start,
TP_PROTO(struct timer_list *timer, unsigned long expires),
TP_ARGS(timer, expires),
TP_STRUCT__entry(
__field( void *, timer )
__field( void *, function )
__field( unsigned long, expires )
__field( unsigned long, now )
),
TP_fast_assign(
__entry->timer = timer;
__entry->function = timer->function;
__entry->expires = expires;
__entry->now = jiffies;
),
TP_printk("timer %p: func %pf, expires %lu, timeout %ld",
__entry->timer, __entry->function, __entry->expires,
(long)__entry->expires - __entry->now)
);
/**
* timer_expire_entry - called immediately before the timer callback
* @timer: pointer to struct timer_list
*
* Allows to determine the timer latency.
*/
TRACE_EVENT(timer_expire_entry,
TP_PROTO(struct timer_list *timer),
TP_ARGS(timer),
TP_STRUCT__entry(
__field( void *, timer )
__field( unsigned long, now )
),
TP_fast_assign(
__entry->timer = timer;
__entry->now = jiffies;
),
TP_printk("timer %p: now %lu", __entry->timer, __entry->now)
);
/**
* timer_expire_exit - called immediately after the timer callback returns
* @timer: pointer to struct timer_list
*
* When used in combination with the timer_expire_entry tracepoint we can
* determine the runtime of the timer callback function.
*
* NOTE: Do NOT derefernce timer in TP_fast_assign. The pointer might
* be invalid. We solely track the pointer.
*/
TRACE_EVENT(timer_expire_exit,
TP_PROTO(struct timer_list *timer),
TP_ARGS(timer),
TP_STRUCT__entry(
__field(void *, timer )
),
TP_fast_assign(
__entry->timer = timer;
),
TP_printk("timer %p", __entry->timer)
);
/**
* timer_cancel - called when the timer is canceled
* @timer: pointer to struct timer_list
*/
TRACE_EVENT(timer_cancel,
TP_PROTO(struct timer_list *timer),
TP_ARGS(timer),
TP_STRUCT__entry(
__field( void *, timer )
),
TP_fast_assign(
__entry->timer = timer;
),
TP_printk("timer %p", __entry->timer)
);
/**
* hrtimer_init - called when the hrtimer is initialized
* @timer: pointer to struct hrtimer
* @clockid: the hrtimers clock
* @mode: the hrtimers mode
*/
TRACE_EVENT(hrtimer_init,
TP_PROTO(struct hrtimer *timer, clockid_t clockid,
enum hrtimer_mode mode),
TP_ARGS(timer, clockid, mode),
TP_STRUCT__entry(
__field( void *, timer )
__field( clockid_t, clockid )
__field( enum hrtimer_mode, mode )
),
TP_fast_assign(
__entry->timer = timer;
__entry->clockid = clockid;
__entry->mode = mode;
),
TP_printk("hrtimer %p, clockid %s, mode %s", __entry->timer,
__entry->clockid == CLOCK_REALTIME ?
"CLOCK_REALTIME" : "CLOCK_MONOTONIC",
__entry->mode == HRTIMER_MODE_ABS ?
"HRTIMER_MODE_ABS" : "HRTIMER_MODE_REL")
);
/**
* hrtimer_start - called when the hrtimer is started
* @timer: pointer to struct hrtimer
*/
TRACE_EVENT(hrtimer_start,
TP_PROTO(struct hrtimer *timer),
TP_ARGS(timer),
TP_STRUCT__entry(
__field( void *, timer )
__field( void *, function )
__field( s64, expires )
__field( s64, softexpires )
),
TP_fast_assign(
__entry->timer = timer;
__entry->function = timer->function;
__entry->expires = hrtimer_get_expires(timer).tv64;
__entry->softexpires = hrtimer_get_softexpires(timer).tv64;
),
TP_printk("hrtimer %p, func %pf, expires %llu, softexpires %llu",
__entry->timer, __entry->function,
(unsigned long long)ktime_to_ns((ktime_t) {
.tv64 = __entry->expires }),
(unsigned long long)ktime_to_ns((ktime_t) {
.tv64 = __entry->softexpires }))
);
/**
* htimmer_expire_entry - called immediately before the hrtimer callback
* @timer: pointer to struct hrtimer
* @now: pointer to variable which contains current time of the
* timers base.
*
* Allows to determine the timer latency.
*/
TRACE_EVENT(hrtimer_expire_entry,
TP_PROTO(struct hrtimer *timer, ktime_t *now),
TP_ARGS(timer, now),
TP_STRUCT__entry(
__field( void *, timer )
__field( s64, now )
),
TP_fast_assign(
__entry->timer = timer;
__entry->now = now->tv64;
),
TP_printk("hrtimer %p, now %llu", __entry->timer,
(unsigned long long)ktime_to_ns((ktime_t) {
.tv64 = __entry->now }))
);
/**
* hrtimer_expire_exit - called immediately after the hrtimer callback returns
* @timer: pointer to struct hrtimer
*
* When used in combination with the hrtimer_expire_entry tracepoint we can
* determine the runtime of the callback function.
*/
TRACE_EVENT(hrtimer_expire_exit,
TP_PROTO(struct hrtimer *timer),
TP_ARGS(timer),
TP_STRUCT__entry(
__field( void *, timer )
),
TP_fast_assign(
__entry->timer = timer;
),
TP_printk("hrtimer %p", __entry->timer)
);
/**
* hrtimer_cancel - called when the hrtimer is canceled
* @timer: pointer to struct hrtimer
*/
TRACE_EVENT(hrtimer_cancel,
TP_PROTO(struct hrtimer *timer),
TP_ARGS(timer),
TP_STRUCT__entry(
__field( void *, timer )
),
TP_fast_assign(
__entry->timer = timer;
),
TP_printk("hrtimer %p", __entry->timer)
);
/**
* itimer_state - called when itimer is started or canceled
* @which: name of the interval timer
* @value: the itimers value, itimer is canceled if value->it_value is
* zero, otherwise it is started
* @expires: the itimers expiry time
*/
TRACE_EVENT(itimer_state,
TP_PROTO(int which, const struct itimerval *const value,
cputime_t expires),
TP_ARGS(which, value, expires),
TP_STRUCT__entry(
__field( int, which )
__field( cputime_t, expires )
__field( long, value_sec )
__field( long, value_usec )
__field( long, interval_sec )
__field( long, interval_usec )
),
TP_fast_assign(
__entry->which = which;
__entry->expires = expires;
__entry->value_sec = value->it_value.tv_sec;
__entry->value_usec = value->it_value.tv_usec;
__entry->interval_sec = value->it_interval.tv_sec;
__entry->interval_usec = value->it_interval.tv_usec;
),
TP_printk("which %d, expires %lu, it_value %lu.%lu, it_interval %lu.%lu",
__entry->which, __entry->expires,
__entry->value_sec, __entry->value_usec,
__entry->interval_sec, __entry->interval_usec)
);
/**
* itimer_expire - called when itimer expires
* @which: type of the interval timer
* @pid: pid of the process which owns the timer
* @now: current time, used to calculate the latency of itimer
*/
TRACE_EVENT(itimer_expire,
TP_PROTO(int which, struct pid *pid, cputime_t now),
TP_ARGS(which, pid, now),
TP_STRUCT__entry(
__field( int , which )
__field( pid_t, pid )
__field( cputime_t, now )
),
TP_fast_assign(
__entry->which = which;
__entry->now = now;
__entry->pid = pid_nr(pid);
),
TP_printk("which %d, pid %d, now %lu", __entry->which,
(int) __entry->pid, __entry->now)
);
#endif /* _TRACE_TIMER_H */
/* This part must be outside protection */
#include <trace/define_trace.h>