X-Git-Url: http://git.liburcu.org/?a=blobdiff_plain;f=instrumentation%2Fevents%2Flttng-module%2Fsched.h;h=10da76c9c0aaae748094ad48ccffce2451eb2252;hb=3b4aafcbbef722c5d04f2fe06a47c47d4d23eda0;hp=6d451ec5c9caae91cf3e4e62184bb2ddcf38c468;hpb=e509213112f86a2ce28a6d7bc9f2b83a57f86764;p=lttng-modules.git diff --git a/instrumentation/events/lttng-module/sched.h b/instrumentation/events/lttng-module/sched.h index 6d451ec5..10da76c9 100644 --- a/instrumentation/events/lttng-module/sched.h +++ b/instrumentation/events/lttng-module/sched.h @@ -1,15 +1,151 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ #undef TRACE_SYSTEM #define TRACE_SYSTEM sched -#if !defined(_TRACE_SCHED_H) || defined(TRACE_HEADER_MULTI_READ) -#define _TRACE_SCHED_H +#if !defined(LTTNG_TRACE_SCHED_H) || defined(TRACE_HEADER_MULTI_READ) +#define LTTNG_TRACE_SCHED_H +#include #include -#include +#include +#include +#include +#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,9,0)) +#include +#endif +#include + +#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; @@ -25,286 +161,375 @@ static inline long __trace_sched_switch_state(struct task_struct *p) 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: */ -TRACE_EVENT(sched_kthread_stop, +LTTNG_TRACEPOINT_EVENT(sched_kthread_stop, TP_PROTO(struct task_struct *t), 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) + ) ) /* * Tracepoint for the return value of the kthread stopping: */ -TRACE_EVENT(sched_kthread_stop_ret, +LTTNG_TRACEPOINT_EVENT(sched_kthread_stop_ret, TP_PROTO(int ret), 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: */ -DECLARE_EVENT_CLASS(sched_wakeup_template, +#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_STRUCT__entry( - __array_text( char, comm, TASK_COMM_LEN ) - __field( pid_t, tid ) - __field( int, prio ) - __field( int, success ) - __field( int, target_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, success, success) + ctf_integer(int, target_cpu, task_cpu(p)) + ) +) +#endif /* #else #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,3,0)) */ - 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) - tp_assign(target_cpu, task_cpu(p)) - ), +#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)) - TP_printk("comm=%s tid=%d prio=%d success=%d target_cpu=%03d", - __entry->comm, __entry->tid, __entry->prio, - __entry->success, __entry->target_cpu) -) +/* + * 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)) -DEFINE_EVENT(sched_wakeup_template, sched_wakeup, +/* + * 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: */ -DEFINE_EVENT(sched_wakeup_template, sched_wakeup_new, +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: */ -TRACE_EVENT(sched_switch, +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), - - 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) - tp_assign(prev_state, __trace_sched_switch_state(prev)) - tp_memcpy(prev_comm, prev->comm, TASK_COMM_LEN) - tp_assign(next_tid, next->pid) - tp_assign(next_prio, next->prio) - ), - - 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) +#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: */ -TRACE_EVENT(sched_migrate_task, +LTTNG_TRACEPOINT_EVENT(sched_migrate_task, TP_PROTO(struct task_struct *p, int dest_cpu), 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) - 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) + ) ) -DECLARE_EVENT_CLASS(sched_process_template, +LTTNG_TRACEPOINT_EVENT_CLASS(sched_process_template, TP_PROTO(struct task_struct *p), 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) - ), - - 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) + ) ) /* * Tracepoint for freeing a task: */ -DEFINE_EVENT(sched_process_template, sched_process_free, +LTTNG_TRACEPOINT_EVENT_INSTANCE(sched_process_template, sched_process_free, TP_PROTO(struct task_struct *p), TP_ARGS(p)) - + /* * Tracepoint for a task exiting: */ -DEFINE_EVENT(sched_process_template, sched_process_exit, +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: */ -DEFINE_EVENT(sched_process_template, sched_wait_task, +LTTNG_TRACEPOINT_EVENT_INSTANCE(sched_process_template, sched_wait_task, TP_PROTO(struct task_struct *p), TP_ARGS(p)) /* * Tracepoint for a waiting task: */ -TRACE_EVENT(sched_process_wait, +LTTNG_TRACEPOINT_EVENT(sched_process_wait, TP_PROTO(struct pid *pid), 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) - ), - - 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) + ) ) /* - * Tracepoint for do_fork: + * 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. */ -TRACE_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 ) - __array_text( char, child_comm, TASK_COMM_LEN ) - __field( pid_t, child_tid ) + 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_memcpy(child_comm, child->comm, TASK_COMM_LEN) - tp_assign(child_tid, child->pid) + 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_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(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. */ -DECLARE_EVENT_CLASS(sched_stat_template, +LTTNG_TRACEPOINT_EVENT_CLASS(sched_stat_template, TP_PROTO(struct task_struct *tsk, u64 delay), 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) ) @@ -312,7 +537,7 @@ DECLARE_EVENT_CLASS(sched_stat_template, * Tracepoint for accounting wait time (time the task is runnable * but not actually running due to scheduler contention). */ -DEFINE_EVENT(sched_stat_template, sched_stat_wait, +LTTNG_TRACEPOINT_EVENT_INSTANCE(sched_stat_template, sched_stat_wait, TP_PROTO(struct task_struct *tsk, u64 delay), TP_ARGS(tsk, delay)) @@ -320,7 +545,7 @@ DEFINE_EVENT(sched_stat_template, sched_stat_wait, * Tracepoint for accounting sleep time (time the task is not runnable, * including iowait, see below). */ -DEFINE_EVENT(sched_stat_template, sched_stat_sleep, +LTTNG_TRACEPOINT_EVENT_INSTANCE(sched_stat_template, sched_stat_sleep, TP_PROTO(struct task_struct *tsk, u64 delay), TP_ARGS(tsk, delay)) @@ -328,73 +553,78 @@ DEFINE_EVENT(sched_stat_template, sched_stat_sleep, * Tracepoint for accounting iowait time (time the task is not runnable * due to waiting on IO to complete). */ -DEFINE_EVENT(sched_stat_template, sched_stat_iowait, +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). */ -TRACE_EVENT(sched_stat_runtime, +LTTNG_TRACEPOINT_EVENT(sched_stat_runtime, TP_PROTO(struct task_struct *tsk, u64 runtime, u64 vruntime), 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) - ), - - 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) ) +#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. */ -TRACE_EVENT(sched_pi_setprio, +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) + ) +) +#else +/* + * 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) - tp_assign(newprio, newprio) - ), + 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 /* _TRACE_SCHED_H */ +#endif /* LTTNG_TRACE_SCHED_H */ /* This part must be outside protection */ -#include "../../../probes/define_trace.h" +#include