#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))
+#if (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)
{
TP_ARGS(t),
- TP_STRUCT__entry(
- __array_text( char, comm, TASK_COMM_LEN )
- __field( pid_t, tid )
- ),
-
- TP_fast_assign(
- tp_memcpy(comm, t->comm, TASK_COMM_LEN)
- tp_assign(tid, t->pid)
- ),
-
- TP_printk("comm=%s tid=%d", __entry->comm, __entry->tid)
+ TP_FIELDS(
+ ctf_array_text(char, comm, t->comm, TASK_COMM_LEN)
+ ctf_integer(pid_t, tid, t->pid)
+ )
)
/*
TP_ARGS(ret),
- TP_STRUCT__entry(
- __field( int, ret )
- ),
-
- TP_fast_assign(
- tp_assign(ret, ret)
- ),
-
- TP_printk("ret=%d", __entry->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_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,
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,35))
TP_ARGS(rq, p, success),
#endif
- TP_STRUCT__entry(
- __array_text( char, comm, TASK_COMM_LEN )
- __field( pid_t, tid )
- __field( int, prio )
- __field( int, 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)
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,32))
- __field( int, target_cpu )
+ ctf_integer(int, target_cpu, task_cpu(p))
#endif
- ),
-
- TP_fast_assign(
- tp_memcpy(comm, p->comm, TASK_COMM_LEN)
- tp_assign(tid, p->pid)
- tp_assign(prio, p->prio)
- tp_assign(success, success)
-#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,32))
- tp_assign(target_cpu, task_cpu(p))
-#endif
-#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,6,0))
)
- TP_perf_assign(
- __perf_task(p)
-#endif
- ),
-
-#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,32))
- TP_printk("comm=%s tid=%d prio=%d success=%d target_cpu=%03d",
- __entry->comm, __entry->tid, __entry->prio,
- __entry->success, __entry->target_cpu)
-#else
- TP_printk("comm=%s tid=%d prio=%d success=%d",
- __entry->comm, __entry->tid, __entry->prio,
- __entry->success)
-#endif
)
+#endif /* #else #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,3,0)) */
-#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,35))
+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,3,0) || \
+ LTTNG_RT_KERNEL_RANGE(4,1,10,11, 4,2,0,0))
+
+/*
+ * 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))
+
+#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),
*/
LTTNG_TRACEPOINT_EVENT(sched_switch,
-#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,35))
+#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),
+#elif (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,35))
TP_PROTO(struct task_struct *prev,
struct task_struct *next),
TP_ARGS(rq, prev, next),
#endif /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,35)) */
- TP_STRUCT__entry(
- __array_text( char, prev_comm, TASK_COMM_LEN )
- __field( pid_t, prev_tid )
- __field( int, prev_prio )
- __field( long, prev_state )
- __array_text( char, next_comm, TASK_COMM_LEN )
- __field( pid_t, next_tid )
- __field( int, next_prio )
- ),
-
- TP_fast_assign(
- tp_memcpy(next_comm, next->comm, TASK_COMM_LEN)
- tp_assign(prev_tid, prev->pid)
- tp_assign(prev_prio, prev->prio - MAX_RT_PRIO)
-#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,35))
- tp_assign(prev_state, __trace_sched_switch_state(prev))
-#else
- tp_assign(prev_state, prev->state)
-#endif
- tp_memcpy(prev_comm, prev->comm, TASK_COMM_LEN)
- tp_assign(next_tid, next->pid)
- tp_assign(next_prio, next->prio - MAX_RT_PRIO)
- ),
-
-#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,2,0))
- TP_printk("prev_comm=%s prev_tid=%d prev_prio=%d prev_state=%s%s ==> next_comm=%s next_tid=%d next_prio=%d",
- __entry->prev_comm, __entry->prev_tid, __entry->prev_prio,
- __entry->prev_state & (TASK_STATE_MAX-1) ?
- __print_flags(__entry->prev_state & (TASK_STATE_MAX-1), "|",
- { 1, "S"} , { 2, "D" }, { 4, "T" }, { 8, "t" },
- { 16, "Z" }, { 32, "X" }, { 64, "x" },
- { 128, "W" }) : "R",
- __entry->prev_state & TASK_STATE_MAX ? "+" : "",
- __entry->next_comm, __entry->next_tid, __entry->next_prio)
+ 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_integer(long, prev_state, __trace_sched_switch_state(preempt, prev))
+#elif (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,35))
+ ctf_integer(long, prev_state, __trace_sched_switch_state(prev))
#else
- TP_printk("prev_comm=%s prev_tid=%d prev_prio=%d prev_state=%s ==> next_comm=%s next_tid=%d next_prio=%d",
- __entry->prev_comm, __entry->prev_tid, __entry->prev_prio,
- __entry->prev_state ?
- __print_flags(__entry->prev_state, "|",
- { 1, "S"} , { 2, "D" }, { 4, "T" }, { 8, "t" },
- { 16, "Z" }, { 32, "X" }, { 64, "x" },
- { 128, "W" }) : "R",
- __entry->next_comm, __entry->next_tid, __entry->next_prio)
+ 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)
+ )
)
/*
TP_ARGS(p, dest_cpu),
- TP_STRUCT__entry(
- __array_text( char, comm, TASK_COMM_LEN )
- __field( pid_t, tid )
- __field( int, prio )
- __field( int, orig_cpu )
- __field( int, dest_cpu )
- ),
-
- TP_fast_assign(
- tp_memcpy(comm, p->comm, TASK_COMM_LEN)
- tp_assign(tid, p->pid)
- tp_assign(prio, p->prio - MAX_RT_PRIO)
- tp_assign(orig_cpu, task_cpu(p))
- tp_assign(dest_cpu, dest_cpu)
- ),
-
- TP_printk("comm=%s tid=%d prio=%d orig_cpu=%d dest_cpu=%d",
- __entry->comm, __entry->tid, __entry->prio,
- __entry->orig_cpu, __entry->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_ARGS(p),
- TP_STRUCT__entry(
- __array_text( char, comm, TASK_COMM_LEN )
- __field( pid_t, tid )
- __field( int, prio )
- ),
-
- TP_fast_assign(
- tp_memcpy(comm, p->comm, TASK_COMM_LEN)
- tp_assign(tid, p->pid)
- tp_assign(prio, p->prio - MAX_RT_PRIO)
- ),
-
- TP_printk("comm=%s tid=%d prio=%d",
- __entry->comm, __entry->tid, __entry->prio)
+ 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)
+ )
)
/*
LTTNG_TRACEPOINT_EVENT_INSTANCE(sched_process_template, sched_process_free,
TP_PROTO(struct task_struct *p),
TP_ARGS(p))
-
+
/*
* Tracepoint for a task exiting:
TP_ARGS(pid),
- TP_STRUCT__entry(
- __array_text( char, comm, TASK_COMM_LEN )
- __field( pid_t, tid )
- __field( int, prio )
- ),
-
- TP_fast_assign(
- tp_memcpy(comm, current->comm, TASK_COMM_LEN)
- tp_assign(tid, pid_nr(pid))
- tp_assign(prio, current->prio - MAX_RT_PRIO)
- ),
-
- TP_printk("comm=%s tid=%d prio=%d",
- __entry->comm, __entry->tid, __entry->prio)
+ 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)
+ )
)
/*
* == child_pid, while creation of a thread yields to child_tid !=
* child_pid.
*/
-LTTNG_TRACEPOINT_EVENT(sched_process_fork,
+LTTNG_TRACEPOINT_EVENT_CODE(sched_process_fork,
TP_PROTO(struct task_struct *parent, struct task_struct *child),
TP_ARGS(parent, child),
- TP_STRUCT__entry(
- __array_text( char, parent_comm, TASK_COMM_LEN )
- __field( pid_t, parent_tid )
- __field( pid_t, parent_pid )
- __array_text( char, child_comm, TASK_COMM_LEN )
- __field( pid_t, child_tid )
- __field( pid_t, child_pid )
+ 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_fast_assign(
- tp_memcpy(parent_comm, parent->comm, TASK_COMM_LEN)
- tp_assign(parent_tid, parent->pid)
- tp_assign(parent_pid, parent->tgid)
- tp_memcpy(child_comm, child->comm, TASK_COMM_LEN)
- tp_assign(child_tid, child->pid)
- tp_assign(child_pid, child->tgid)
+ 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
),
- TP_printk("comm=%s tid=%d child_comm=%s child_tid=%d",
- __entry->parent_comm, __entry->parent_tid,
- __entry->child_comm, __entry->child_tid)
+ TP_code_post()
)
#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,33))
TP_ARGS(sig, p),
- TP_STRUCT__entry(
- __field( int, sig )
- __array( char, comm, TASK_COMM_LEN )
- __field( pid_t, pid )
- ),
-
- TP_fast_assign(
- tp_memcpy(comm, p->comm, TASK_COMM_LEN)
- tp_assign(pid, p->pid)
- tp_assign(sig, sig)
- ),
-
- TP_printk("sig=%d comm=%s pid=%d",
- __entry->sig, __entry->comm, __entry->pid)
+ 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
TP_ARGS(p, old_pid, bprm),
- TP_STRUCT__entry(
- __string( filename, bprm->filename )
- __field( pid_t, tid )
- __field( pid_t, old_tid )
- ),
-
- TP_fast_assign(
- tp_strcpy(filename, bprm->filename)
- tp_assign(tid, p->pid)
- tp_assign(old_tid, old_pid)
- ),
-
- TP_printk("filename=%s tid=%d old_tid=%d", __get_str(filename),
- __entry->tid, __entry->old_tid)
+ TP_FIELDS(
+ ctf_string(filename, bprm->filename)
+ ctf_integer(pid_t, tid, p->pid)
+ ctf_integer(pid_t, old_tid, old_pid)
+ )
)
#endif
TP_ARGS(tsk, delay),
- TP_STRUCT__entry(
- __array_text( char, comm, TASK_COMM_LEN )
- __field( pid_t, tid )
- __field( u64, delay )
- ),
-
- TP_fast_assign(
- tp_memcpy(comm, tsk->comm, TASK_COMM_LEN)
- tp_assign(tid, tsk->pid)
- tp_assign(delay, 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)
)
- TP_perf_assign(
- __perf_count(delay)
- ),
-
- TP_printk("comm=%s tid=%d delay=%Lu [ns]",
- __entry->comm, __entry->tid,
- (unsigned long long)__entry->delay)
)
TP_ARGS(tsk, runtime, vruntime),
- TP_STRUCT__entry(
- __array_text( char, comm, TASK_COMM_LEN )
- __field( pid_t, tid )
- __field( u64, runtime )
- __field( u64, vruntime )
- ),
-
- TP_fast_assign(
- tp_memcpy(comm, tsk->comm, TASK_COMM_LEN)
- tp_assign(tid, tsk->pid)
- tp_assign(runtime, runtime)
- tp_assign(vruntime, 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)
)
- TP_perf_assign(
- __perf_count(runtime)
-#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,6,0))
- __perf_task(tsk)
-#endif
- ),
-
- TP_printk("comm=%s tid=%d runtime=%Lu [ns] vruntime=%Lu [ns]",
- __entry->comm, __entry->tid,
- (unsigned long long)__entry->runtime,
- (unsigned long long)__entry->vruntime)
)
#endif
-#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,37))
+#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, int newprio),
+ TP_PROTO(struct task_struct *tsk, struct task_struct *pi_task),
- TP_ARGS(tsk, newprio),
+ TP_ARGS(tsk, pi_task),
- TP_STRUCT__entry(
- __array_text( char, comm, TASK_COMM_LEN )
- __field( pid_t, tid )
- __field( int, oldprio )
- __field( int, 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, pi_task ? pi_task->prio - MAX_RT_PRIO : tsk->prio - MAX_RT_PRIO)
+ )
+)
+#elif (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,37))
+/*
+ * Tracepoint for showing priority inheritance modifying a tasks
+ * priority.
+ */
+LTTNG_TRACEPOINT_EVENT(sched_pi_setprio,
- TP_fast_assign(
- tp_memcpy(comm, tsk->comm, TASK_COMM_LEN)
- tp_assign(tid, tsk->pid)
- tp_assign(oldprio, tsk->prio - MAX_RT_PRIO)
- tp_assign(newprio, newprio - MAX_RT_PRIO)
- ),
+ TP_PROTO(struct task_struct *tsk, int newprio),
+
+ TP_ARGS(tsk, newprio),
- TP_printk("comm=%s tid=%d oldprio=%d newprio=%d",
- __entry->comm, __entry->tid,
- __entry->oldprio, __entry->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"
+#include <probes/define_trace.h>
projects / lttng-modules.git / blobdiff