+++ /dev/null
-/* 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 <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_ */
-
-/*
- * 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)
-
-#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,9,0))
- ctf_enum_value("TASK_PARKED", TASK_PARKED)
-#endif /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,9,0)) */
-
- ctf_enum_value("TASK_DEAD", TASK_DEAD)
- ctf_enum_value("TASK_WAKEKILL", TASK_WAKEKILL)
- ctf_enum_value("TASK_WAKING", TASK_WAKING)
-
-#if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,2,0))
- ctf_enum_value("TASK_NOLOAD", TASK_NOLOAD)
-#endif /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,2,0)) */
-
-#if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,8,0))
- ctf_enum_value("TASK_NEW", TASK_NEW)
-#endif /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,8,0)) */
-
- ctf_enum_value("TASK_STATE_MAX", TASK_STATE_MAX)
- )
-)
-
-/*
- * 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_enum(task_state, long, prev_state, __trace_sched_switch_state(preempt, prev))
-#else
- ctf_enum(task_state, 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 <lttng/define_trace.h>
projects / lttng-modules.git / blobdiff