X-Git-Url: https://git.lttng.org/?a=blobdiff_plain;f=instrumentation%2Fevents%2Flttng-module%2Fsched.h;h=3c7798fe000a19adf447d8c7b9799bc35bc1a9f2;hb=4ac460854f56f7f8f6cefe43334692cbeeaf48f9;hp=f5c36692491ecbc8c7a65e2226e526085b94803e;hpb=95ff37b66a64ae00bfff59fa1f2c81ac31e48b8a;p=lttng-modules.git diff --git a/instrumentation/events/lttng-module/sched.h b/instrumentation/events/lttng-module/sched.h index f5c36692..3c7798fe 100644 --- a/instrumentation/events/lttng-module/sched.h +++ b/instrumentation/events/lttng-module/sched.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #undef TRACE_SYSTEM #define TRACE_SYSTEM sched @@ -8,23 +9,74 @@ #include #include #include -#include -#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,9,0)) +#include +#if (LTTNG_LINUX_VERSION_CODE >= LTTNG_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 (LTTNG_LINUX_VERSION_CODE >= LTTNG_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 (LTTNG_LINUX_VERSION_CODE >= LTTNG_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 (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,4,0)) static inline long __trace_sched_switch_state(bool preempt, struct task_struct *p) { @@ -38,7 +90,7 @@ static inline long __trace_sched_switch_state(bool preempt, struct task_struct * return preempt ? TASK_RUNNING | TASK_STATE_MAX : p->state; } -#elif (LINUX_VERSION_CODE >= KERNEL_VERSION(3,19,0)) +#elif (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,19,0)) static inline long __trace_sched_switch_state(struct task_struct *p) { @@ -58,7 +110,7 @@ static inline long __trace_sched_switch_state(struct task_struct *p) return state; } -#elif (LINUX_VERSION_CODE >= KERNEL_VERSION(3,13,0)) +#elif (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,13,0)) static inline long __trace_sched_switch_state(struct task_struct *p) { @@ -75,7 +127,7 @@ static inline long __trace_sched_switch_state(struct task_struct *p) return state; } -#elif (LINUX_VERSION_CODE >= KERNEL_VERSION(3,2,0)) +#elif (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,2,0)) static inline long __trace_sched_switch_state(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 +165,42 @@ static inline long __trace_sched_switch_state(struct task_struct *p) #endif /* _TRACE_SCHED_DEF_ */ +#ifdef CONFIG_LTTNG_EXPERIMENTAL_BITWISE_ENUM +/* + * 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 (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,9,0)) + ctf_enum_value("TASK_PARKED", TASK_PARKED) +#endif /* #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_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 (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,2,0)) + ctf_enum_value("TASK_NOLOAD", TASK_NOLOAD) +#endif /* #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,2,0)) */ + +#if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,8,0)) + ctf_enum_value("TASK_NEW", TASK_NEW) +#endif /* #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,8,0)) */ + + ctf_enum_value("TASK_STATE_MAX", TASK_STATE_MAX) + ) +) +#endif /* CONFIG_LTTNG_EXPERIMENTAL_BITWISE_ENUM */ + /* * Tracepoint for calling kthread_stop, performed to end a kthread: */ @@ -145,7 +233,7 @@ LTTNG_TRACEPOINT_EVENT(sched_kthread_stop_ret, /* * Tracepoint for waking up a task: */ -#if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,3,0) || \ +#if (LTTNG_LINUX_VERSION_CODE >= LTTNG_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) || \ @@ -166,32 +254,24 @@ LTTNG_TRACEPOINT_EVENT_CLASS(sched_wakeup_template, ctf_integer(int, target_cpu, task_cpu(p)) ) ) -#else /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,3,0)) */ +#else /* #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_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)) */ +#endif /* #else #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,3,0)) */ -#if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,3,0) || \ +#if (LTTNG_LINUX_VERSION_CODE >= LTTNG_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) || \ @@ -223,7 +303,7 @@ 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), @@ -236,54 +316,42 @@ 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 (LTTNG_LINUX_VERSION_CODE >= LTTNG_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)) +#if (LTTNG_LINUX_VERSION_CODE >= LTTNG_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)) +#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 (LTTNG_LINUX_VERSION_CODE >= LTTNG_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)) +#if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,4,0)) +#ifdef CONFIG_LTTNG_EXPERIMENTAL_BITWISE_ENUM + ctf_enum(task_state, long, prev_state, __trace_sched_switch_state(preempt, prev)) +#else 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)) +#endif #else - ctf_integer(long, prev_state, prev->state) +#ifdef CONFIG_LTTNG_EXPERIMENTAL_BITWISE_ENUM + ctf_enum(task_state, long, prev_state, __trace_sched_switch_state(prev)) +#else + ctf_integer(long, prev_state, __trace_sched_switch_state(prev)) +#endif #endif ctf_array_text(char, next_comm, next->comm, TASK_COMM_LEN) ctf_integer(pid_t, next_tid, next->pid) @@ -340,15 +408,9 @@ 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: @@ -403,7 +465,7 @@ LTTNG_TRACEPOINT_EVENT_CODE(sched_process_fork, 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)) +#if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,8,0)) ctf_integer(unsigned int, parent_ns_inum, ({ unsigned int parent_ns_inum = 0; @@ -414,7 +476,7 @@ 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; })) @@ -423,7 +485,7 @@ LTTNG_TRACEPOINT_EVENT_CODE(sched_process_fork, 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)) +#if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,8,0)) ctf_integer(unsigned int, child_ns_inum, ({ unsigned int child_ns_inum = 0; @@ -434,7 +496,7 @@ 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; })) @@ -444,25 +506,7 @@ 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)) +#if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,4,0)) /* * Tracepoint for exec: */ @@ -481,7 +525,6 @@ 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. @@ -524,7 +567,7 @@ 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)) +#if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,3,0)) /* * Tracepoint for accounting blocked time (time the task is in uninterruptible). */ @@ -550,9 +593,8 @@ LTTNG_TRACEPOINT_EVENT(sched_stat_runtime, ctf_integer(u64, vruntime, vruntime) ) ) -#endif -#if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,12,0) || \ +#if (LTTNG_LINUX_VERSION_CODE >= LTTNG_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)) /* @@ -572,7 +614,7 @@ 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.