+/* 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 <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)
+static inline long __trace_sched_switch_state(bool preempt, struct task_struct *p)
{
- long state = p->state;
+ unsigned int state;
-#ifdef CONFIG_PREEMPT
#ifdef CONFIG_SCHED_DEBUG
- BUG_ON(p != current);
+ 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;
+ /*
+ * 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
-
#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:
*/
/*
* Tracepoint for waking up a task:
*/
-#if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,3,0))
LTTNG_TRACEPOINT_EVENT_CLASS(sched_wakeup_template,
TP_PROTO(struct task_struct *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)
- 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,
-
-#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, prio, p->prio - MAX_RT_PRIO)
ctf_integer(int, target_cpu, task_cpu(p))
-#endif
)
)
-#endif /* #else #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,3,0)) */
-
-#if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,3,0))
/*
* Tracepoint called when waking a task; this tracepoint is guaranteed to be
TP_PROTO(struct task_struct *p),
TP_ARGS(p))
-#elif (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,
+ TP_PROTO(bool preempt,
+ struct task_struct *prev,
struct task_struct *next),
- TP_ARGS(rq, prev, next),
-#endif /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,35)) */
+ 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)
-#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_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)
LTTNG_TRACEPOINT_EVENT_INSTANCE(sched_process_template, sched_process_free,
TP_PROTO(struct task_struct *p),
TP_ARGS(p))
-
+
/*
* Tracepoint for a task exiting:
/*
* 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:
unsigned int ns_level;
),
- TP_code(
+ TP_code_pre(
if (child) {
struct pid *child_pid;
unsigned int i;
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;
pid_ns = task_active_pid_ns(parent);
if (pid_ns)
parent_ns_inum =
- pid_ns->lttng_proc_inum;
+ pid_ns->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;
pid_ns = task_active_pid_ns(child);
if (pid_ns)
child_ns_inum =
- pid_ns->lttng_proc_inum;
+ pid_ns->ns.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)
- )
+ TP_code_post()
)
-#endif
-#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,4,0))
/*
* Tracepoint for exec:
*/
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.
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
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_PROTO(struct task_struct *tsk, struct task_struct *pi_task),
- TP_ARGS(tsk, newprio),
+ 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, newprio - MAX_RT_PRIO)
+ ctf_integer(int, newprio, pi_task ? pi_task->prio - MAX_RT_PRIO : tsk->prio - MAX_RT_PRIO)
)
)
-#endif
#endif /* LTTNG_TRACE_SCHED_H */
/* This part must be outside protection */
-#include "../../../probes/define_trace.h"
+#include <probes/define_trace.h>
projects / lttng-modules.git / blobdiff