--- /dev/null
+/* SPDX-License-Identifier: GPL-2.0-only */
+#undef TRACE_SYSTEM
+#define TRACE_SYSTEM timer
+
+#if !defined(LTTNG_TRACE_TIMER_H) || defined(TRACE_HEADER_MULTI_READ)
+#define LTTNG_TRACE_TIMER_H
+
+#include <lttng/tracepoint-event.h>
+
+#ifndef _TRACE_TIMER_DEF_
+#define _TRACE_TIMER_DEF_
+#include <linux/hrtimer.h>
+#include <linux/timer.h>
+#include <linux/version.h>
+
+struct timer_list;
+
+#endif /* _TRACE_TIMER_DEF_ */
+
+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,10,0))
+#define lttng_ktime_get_tv64(kt) (kt)
+#else /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,10,0)) */
+#define lttng_ktime_get_tv64(kt) ((kt).tv64)
+#endif /* #else #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,10,0)) */
+
+LTTNG_TRACEPOINT_EVENT_CLASS(timer_class,
+
+ TP_PROTO(struct timer_list *timer),
+
+ TP_ARGS(timer),
+
+ TP_FIELDS(
+ ctf_integer_hex(void *, timer, timer)
+ )
+)
+
+/**
+ * timer_init - called when the timer is initialized
+ * @timer: pointer to struct timer_list
+ */
+LTTNG_TRACEPOINT_EVENT_INSTANCE(timer_class, timer_init,
+
+ TP_PROTO(struct timer_list *timer),
+
+ TP_ARGS(timer)
+)
+
+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,2,0) || \
+ LTTNG_RHEL_KERNEL_RANGE(3,10,0,957,0,0, 3,11,0,0,0,0))
+/**
+ * timer_start - called when the timer is started
+ * @timer: pointer to struct timer_list
+ * @expires: the timers expiry time
+ * @flags: the timers expiry time
+ */
+LTTNG_TRACEPOINT_EVENT(timer_start,
+
+ TP_PROTO(struct timer_list *timer, unsigned long expires,
+ unsigned int flags),
+
+ TP_ARGS(timer, expires, flags),
+
+ TP_FIELDS(
+ ctf_integer_hex(void *, timer, timer)
+ ctf_integer_hex(void *, function, timer->function)
+ ctf_integer(unsigned long, expires, expires)
+ ctf_integer(unsigned long, now, jiffies)
+ ctf_integer(unsigned int, flags, flags)
+ )
+)
+#else /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,2,0)) */
+/**
+ * timer_start - called when the timer is started
+ * @timer: pointer to struct timer_list
+ * @expires: the timers expiry time
+ */
+LTTNG_TRACEPOINT_EVENT(timer_start,
+
+ TP_PROTO(struct timer_list *timer, unsigned long expires),
+
+ TP_ARGS(timer, expires),
+
+ TP_FIELDS(
+ ctf_integer_hex(void *, timer, timer)
+ ctf_integer_hex(void *, function, timer->function)
+ ctf_integer(unsigned long, expires, expires)
+ ctf_integer(unsigned long, now, jiffies)
+ )
+)
+#endif /* #else #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,2,0)) */
+
+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(5,2,0))
+/**
+ * timer_expire_entry - called immediately before the timer callback
+ * @timer: pointer to struct timer_list
+ *
+ * Allows to determine the timer latency.
+ */
+LTTNG_TRACEPOINT_EVENT(timer_expire_entry,
+
+ TP_PROTO(struct timer_list *timer, unsigned long baseclk),
+
+ TP_ARGS(timer, baseclk),
+
+ TP_FIELDS(
+ ctf_integer_hex(void *, timer, timer)
+ ctf_integer(unsigned long, now, jiffies)
+ ctf_integer_hex(void *, function, timer->function)
+ ctf_integer(unsigned long, baseclk, baseclk)
+ )
+)
+#else
+/**
+ * timer_expire_entry - called immediately before the timer callback
+ * @timer: pointer to struct timer_list
+ *
+ * Allows to determine the timer latency.
+ */
+LTTNG_TRACEPOINT_EVENT(timer_expire_entry,
+
+ TP_PROTO(struct timer_list *timer),
+
+ TP_ARGS(timer),
+
+ TP_FIELDS(
+ ctf_integer_hex(void *, timer, timer)
+ ctf_integer(unsigned long, now, jiffies)
+ ctf_integer_hex(void *, function, timer->function)
+ )
+)
+#endif
+
+/**
+ * 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.
+ */
+LTTNG_TRACEPOINT_EVENT_INSTANCE(timer_class, timer_expire_exit,
+
+ TP_PROTO(struct timer_list *timer),
+
+ TP_ARGS(timer)
+)
+
+/**
+ * timer_cancel - called when the timer is canceled
+ * @timer: pointer to struct timer_list
+ */
+LTTNG_TRACEPOINT_EVENT_INSTANCE(timer_class, timer_cancel,
+
+ TP_PROTO(struct timer_list *timer),
+
+ TP_ARGS(timer)
+)
+
+/**
+ * hrtimer_init - called when the hrtimer is initialized
+ * @timer: pointer to struct hrtimer
+ * @clockid: the hrtimers clock
+ * @mode: the hrtimers mode
+ */
+LTTNG_TRACEPOINT_EVENT_MAP(hrtimer_init,
+
+ timer_hrtimer_init,
+
+ TP_PROTO(struct hrtimer *hrtimer, clockid_t clockid,
+ enum hrtimer_mode mode),
+
+ TP_ARGS(hrtimer, clockid, mode),
+
+ TP_FIELDS(
+ ctf_integer_hex(void *, hrtimer, hrtimer)
+ ctf_integer(clockid_t, clockid, clockid)
+ ctf_integer(enum hrtimer_mode, mode, mode)
+ )
+)
+
+/**
+ * hrtimer_start - called when the hrtimer is started
+ * @timer: pointer to struct hrtimer
+ */
+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,16,0) || \
+ LTTNG_RT_KERNEL_RANGE(4,14,0,0, 4,15,0,0))
+LTTNG_TRACEPOINT_EVENT_MAP(hrtimer_start,
+
+ timer_hrtimer_start,
+
+ TP_PROTO(struct hrtimer *hrtimer, enum hrtimer_mode mode),
+
+ TP_ARGS(hrtimer, mode),
+
+ TP_FIELDS(
+ ctf_integer_hex(void *, hrtimer, hrtimer)
+ ctf_integer_hex(void *, function, hrtimer->function)
+ ctf_integer(s64, expires,
+ lttng_ktime_get_tv64(hrtimer_get_expires(hrtimer)))
+ ctf_integer(s64, softexpires,
+ lttng_ktime_get_tv64(hrtimer_get_softexpires(hrtimer)))
+ ctf_integer(enum hrtimer_mode, mode, mode)
+ )
+)
+#else
+LTTNG_TRACEPOINT_EVENT_MAP(hrtimer_start,
+
+ timer_hrtimer_start,
+
+ TP_PROTO(struct hrtimer *hrtimer),
+
+ TP_ARGS(hrtimer),
+
+ TP_FIELDS(
+ ctf_integer_hex(void *, hrtimer, hrtimer)
+ ctf_integer_hex(void *, function, hrtimer->function)
+ ctf_integer(s64, expires,
+ lttng_ktime_get_tv64(hrtimer_get_expires(hrtimer)))
+ ctf_integer(s64, softexpires,
+ lttng_ktime_get_tv64(hrtimer_get_softexpires(hrtimer)))
+ )
+)
+#endif
+
+/**
+ * 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.
+ */
+LTTNG_TRACEPOINT_EVENT_MAP(hrtimer_expire_entry,
+
+ timer_hrtimer_expire_entry,
+
+ TP_PROTO(struct hrtimer *hrtimer, ktime_t *now),
+
+ TP_ARGS(hrtimer, now),
+
+ TP_FIELDS(
+ ctf_integer_hex(void *, hrtimer, hrtimer)
+ ctf_integer(s64, now, lttng_ktime_get_tv64(*now))
+ ctf_integer_hex(void *, function, hrtimer->function)
+ )
+)
+
+LTTNG_TRACEPOINT_EVENT_CLASS(timer_hrtimer_class,
+
+ TP_PROTO(struct hrtimer *hrtimer),
+
+ TP_ARGS(hrtimer),
+
+ TP_FIELDS(
+ ctf_integer_hex(void *, hrtimer, hrtimer)
+ )
+)
+
+/**
+ * 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.
+ */
+LTTNG_TRACEPOINT_EVENT_INSTANCE_MAP(timer_hrtimer_class, hrtimer_expire_exit,
+
+ timer_hrtimer_expire_exit,
+
+ TP_PROTO(struct hrtimer *hrtimer),
+
+ TP_ARGS(hrtimer)
+)
+
+/**
+ * hrtimer_cancel - called when the hrtimer is canceled
+ * @hrtimer: pointer to struct hrtimer
+ */
+LTTNG_TRACEPOINT_EVENT_INSTANCE_MAP(timer_hrtimer_class, hrtimer_cancel,
+
+ timer_hrtimer_cancel,
+
+ TP_PROTO(struct hrtimer *hrtimer),
+
+ TP_ARGS(hrtimer)
+)
+
+/**
+ * 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
+ */
+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(5,5,0))
+LTTNG_TRACEPOINT_EVENT_MAP(itimer_state,
+
+ timer_itimer_state,
+
+ TP_PROTO(int which, const struct itimerspec64 *const value,
+ unsigned long long expires),
+
+ TP_ARGS(which, value, expires),
+
+ TP_FIELDS(
+ ctf_integer(int, which, which)
+ ctf_integer(unsigned long long, expires, expires)
+ ctf_integer(long, value_sec, value->it_value.tv_sec)
+ ctf_integer(long, value_nsec, value->it_value.tv_nsec)
+ ctf_integer(long, interval_sec, value->it_interval.tv_sec)
+ ctf_integer(long, interval_nsec, value->it_interval.tv_nsec)
+ )
+)
+#elif (LINUX_VERSION_CODE >= KERNEL_VERSION(4,11,0))
+LTTNG_TRACEPOINT_EVENT_MAP(itimer_state,
+
+ timer_itimer_state,
+
+ TP_PROTO(int which, const struct itimerval *const value,
+ unsigned long long expires),
+
+ TP_ARGS(which, value, expires),
+
+ TP_FIELDS(
+ ctf_integer(int, which, which)
+ ctf_integer(unsigned long long, expires, expires)
+ ctf_integer(long, value_sec, value->it_value.tv_sec)
+ ctf_integer(long, value_usec, value->it_value.tv_usec)
+ ctf_integer(long, interval_sec, value->it_interval.tv_sec)
+ ctf_integer(long, interval_usec, value->it_interval.tv_usec)
+ )
+)
+#else /* if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,11,0)) */
+LTTNG_TRACEPOINT_EVENT_MAP(itimer_state,
+
+ timer_itimer_state,
+
+ TP_PROTO(int which, const struct itimerval *const value,
+ cputime_t expires),
+
+ TP_ARGS(which, value, expires),
+
+ TP_FIELDS(
+ ctf_integer(int, which, which)
+ ctf_integer(cputime_t, expires, expires)
+ ctf_integer(long, value_sec, value->it_value.tv_sec)
+ ctf_integer(long, value_usec, value->it_value.tv_usec)
+ ctf_integer(long, interval_sec, value->it_interval.tv_sec)
+ ctf_integer(long, interval_usec, value->it_interval.tv_usec)
+ )
+)
+#endif /* #else (LINUX_VERSION_CODE >= KERNEL_VERSION(4,11,0)) */
+
+/**
+ * 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
+ */
+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,11,0))
+LTTNG_TRACEPOINT_EVENT_MAP(itimer_expire,
+
+ timer_itimer_expire,
+
+ TP_PROTO(int which, struct pid *pid, unsigned long long now),
+
+ TP_ARGS(which, pid, now),
+
+ TP_FIELDS(
+ ctf_integer(int , which, which)
+ ctf_integer(pid_t, pid, pid_nr(pid))
+ ctf_integer(unsigned long long, now, now)
+ )
+)
+#else /* if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,11,0)) */
+LTTNG_TRACEPOINT_EVENT_MAP(itimer_expire,
+
+ timer_itimer_expire,
+
+ TP_PROTO(int which, struct pid *pid, cputime_t now),
+
+ TP_ARGS(which, pid, now),
+
+ TP_FIELDS(
+ ctf_integer(int , which, which)
+ ctf_integer(pid_t, pid, pid_nr(pid))
+ ctf_integer(cputime_t, now, now)
+ )
+)
+#endif /* #else (LINUX_VERSION_CODE >= KERNEL_VERSION(4,11,0)) */
+
+#endif /* LTTNG_TRACE_TIMER_H */
+
+/* This part must be outside protection */
+#include <lttng/define_trace.h>
projects / lttng-modules.git / blobdiff