X-Git-Url: http://git.liburcu.org/?a=blobdiff_plain;f=instrumentation%2Fevents%2Flttng-module%2Fsched.h;h=10da76c9c0aaae748094ad48ccffce2451eb2252;hb=3b4aafcbbef722c5d04f2fe06a47c47d4d23eda0;hp=e6f36b115d6489e20e295621bcb9cbe011ff0d6a;hpb=262ab18947d8568ef6357d5bfd84d11537cb4b9f;p=lttng-modules.git diff --git a/instrumentation/events/lttng-module/sched.h b/instrumentation/events/lttng-module/sched.h index e6f36b11..10da76c9 100644 --- a/instrumentation/events/lttng-module/sched.h +++ b/instrumentation/events/lttng-module/sched.h @@ -1,10 +1,11 @@ +/* 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 +#include #include #include #include @@ -12,19 +13,70 @@ #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,9,0)) #include #endif - -#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,19,0)) -#define lttng_proc_inum ns.inum -#else -#define lttng_proc_inum proc_inum -#endif +#include #define LTTNG_MAX_PID_NS_LEVEL 32 #ifndef _TRACE_SCHED_DEF_ #define _TRACE_SCHED_DEF_ -#if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,4,0)) +#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) { @@ -92,7 +144,7 @@ static inline long __trace_sched_switch_state(struct task_struct *p) return state; } -#elif (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,35)) +#else static inline long __trace_sched_switch_state(struct task_struct *p) { @@ -113,6 +165,40 @@ static inline long __trace_sched_switch_state(struct task_struct *p) #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: */ @@ -146,7 +232,13 @@ LTTNG_TRACEPOINT_EVENT(sched_kthread_stop_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(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), @@ -163,30 +255,28 @@ LTTNG_TRACEPOINT_EVENT_CLASS(sched_wakeup_template, #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 - MAX_RT_PRIO) ctf_integer(int, success, success) -#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,32)) 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) || \ - LTTNG_RT_KERNEL_RANGE(4,1,10,11, 4,2,0,0)) + 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 @@ -211,7 +301,7 @@ 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)) +#else LTTNG_TRACEPOINT_EVENT_INSTANCE(sched_wakeup_template, sched_wakeup, TP_PROTO(struct task_struct *p, int success), @@ -224,20 +314,7 @@ 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)) */ +#endif /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,3,0)) */ /* * Tracepoint for task switches, performed by the scheduler: @@ -250,28 +327,21 @@ LTTNG_TRACEPOINT_EVENT(sched_switch, struct task_struct *next), TP_ARGS(preempt, prev, next), -#elif (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,35)) +#else 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, - struct task_struct *next), - - TP_ARGS(rq, prev, next), -#endif /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,35)) */ +#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_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)) + ctf_enum(task_state, long, prev_state, __trace_sched_switch_state(preempt, prev)) #else - ctf_integer(long, prev_state, prev->state) + 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) @@ -328,15 +398,9 @@ LTTNG_TRACEPOINT_EVENT_INSTANCE(sched_process_template, sched_process_exit, /* * 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: @@ -402,7 +466,7 @@ LTTNG_TRACEPOINT_EVENT_CODE(sched_process_fork, pid_ns = task_active_pid_ns(parent); if (pid_ns) parent_ns_inum = - pid_ns->lttng_proc_inum; + pid_ns->lttng_ns_inum; } parent_ns_inum; })) @@ -422,7 +486,7 @@ LTTNG_TRACEPOINT_EVENT_CODE(sched_process_fork, pid_ns = task_active_pid_ns(child); if (pid_ns) child_ns_inum = - pid_ns->lttng_proc_inum; + pid_ns->lttng_ns_inum; } child_ns_inum; })) @@ -432,24 +496,6 @@ LTTNG_TRACEPOINT_EVENT_CODE(sched_process_fork, TP_code_post() ) -#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) - ) -) -#endif - #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,4,0)) /* * Tracepoint for exec: @@ -469,7 +515,6 @@ LTTNG_TRACEPOINT_EVENT(sched_process_exec, ) #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. @@ -538,10 +583,10 @@ LTTNG_TRACEPOINT_EVENT(sched_stat_runtime, ctf_integer(u64, vruntime, vruntime) ) ) -#endif #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(4,9,27,18, 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. @@ -559,7 +604,7 @@ LTTNG_TRACEPOINT_EVENT(sched_pi_setprio, 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)) +#else /* * Tracepoint for showing priority inheritance modifying a tasks * priority. @@ -582,4 +627,4 @@ LTTNG_TRACEPOINT_EVENT(sched_pi_setprio, #endif /* LTTNG_TRACE_SCHED_H */ /* This part must be outside protection */ -#include +#include