d0b6e04a4c
If TRACE_INCLDUE_FILE is defined, <trace/events/TRACE_INCLUDE_FILE.h>
will be included and compiled, otherwise it will be
<trace/events/TRACE_SYSTEM.h>
So TRACE_SYSTEM should be defined outside of #if proctection,
just like TRACE_INCLUDE_FILE.
Imaging this scenario:
#include <trace/events/foo.h>
-> TRACE_SYSTEM == foo
...
#include <trace/events/bar.h>
-> TRACE_SYSTEM == bar
...
#define CREATE_TRACE_POINTS
#include <trace/events/foo.h>
-> TRACE_SYSTEM == bar !!!
and then bar.h will be included and compiled.
Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
LKML-Reference: <4A5A9CF1.2010007@cn.fujitsu.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
100 lines
2.3 KiB
C
100 lines
2.3 KiB
C
#undef TRACE_SYSTEM
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#define TRACE_SYSTEM workqueue
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#if !defined(_TRACE_WORKQUEUE_H) || defined(TRACE_HEADER_MULTI_READ)
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#define _TRACE_WORKQUEUE_H
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#include <linux/workqueue.h>
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#include <linux/sched.h>
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#include <linux/tracepoint.h>
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TRACE_EVENT(workqueue_insertion,
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TP_PROTO(struct task_struct *wq_thread, struct work_struct *work),
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TP_ARGS(wq_thread, work),
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TP_STRUCT__entry(
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__array(char, thread_comm, TASK_COMM_LEN)
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__field(pid_t, thread_pid)
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__field(work_func_t, func)
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),
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TP_fast_assign(
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memcpy(__entry->thread_comm, wq_thread->comm, TASK_COMM_LEN);
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__entry->thread_pid = wq_thread->pid;
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__entry->func = work->func;
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),
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TP_printk("thread=%s:%d func=%pF", __entry->thread_comm,
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__entry->thread_pid, __entry->func)
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);
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TRACE_EVENT(workqueue_execution,
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TP_PROTO(struct task_struct *wq_thread, struct work_struct *work),
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TP_ARGS(wq_thread, work),
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TP_STRUCT__entry(
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__array(char, thread_comm, TASK_COMM_LEN)
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__field(pid_t, thread_pid)
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__field(work_func_t, func)
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),
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TP_fast_assign(
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memcpy(__entry->thread_comm, wq_thread->comm, TASK_COMM_LEN);
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__entry->thread_pid = wq_thread->pid;
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__entry->func = work->func;
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),
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TP_printk("thread=%s:%d func=%pF", __entry->thread_comm,
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__entry->thread_pid, __entry->func)
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);
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/* Trace the creation of one workqueue thread on a cpu */
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TRACE_EVENT(workqueue_creation,
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TP_PROTO(struct task_struct *wq_thread, int cpu),
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TP_ARGS(wq_thread, cpu),
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TP_STRUCT__entry(
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__array(char, thread_comm, TASK_COMM_LEN)
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__field(pid_t, thread_pid)
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__field(int, cpu)
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),
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TP_fast_assign(
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memcpy(__entry->thread_comm, wq_thread->comm, TASK_COMM_LEN);
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__entry->thread_pid = wq_thread->pid;
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__entry->cpu = cpu;
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),
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TP_printk("thread=%s:%d cpu=%d", __entry->thread_comm,
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__entry->thread_pid, __entry->cpu)
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);
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TRACE_EVENT(workqueue_destruction,
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TP_PROTO(struct task_struct *wq_thread),
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TP_ARGS(wq_thread),
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TP_STRUCT__entry(
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__array(char, thread_comm, TASK_COMM_LEN)
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__field(pid_t, thread_pid)
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),
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TP_fast_assign(
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memcpy(__entry->thread_comm, wq_thread->comm, TASK_COMM_LEN);
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__entry->thread_pid = wq_thread->pid;
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),
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TP_printk("thread=%s:%d", __entry->thread_comm, __entry->thread_pid)
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);
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#endif /* _TRACE_WORKQUEUE_H */
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/* This part must be outside protection */
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#include <trace/define_trace.h>
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