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events: Rename TRACE_EVENT_TEMPLATE() to DECLARE_EVENT_CLASS()
It is not quite obvious at first sight what TRACE_EVENT_TEMPLATE
does: does it define an event as well beyond defining a template?
To clarify this, rename it to DECLARE_EVENT_CLASS, which follows
the various 'DECLARE_*()' idioms we already have in the kernel:
DECLARE_EVENT_CLASS(class)
DEFINE_EVENT(class, event1)
DEFINE_EVENT(class, event2)
DEFINE_EVENT(class, event3)
To complete this logic we should also rename TRACE_EVENT() to:
DEFINE_SINGLE_EVENT(single_event)
... but in a more quiet moment of the kernel cycle.
Cc: Pekka Enberg <penberg@cs.helsinki.fi>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
LKML-Reference: <4B0E286A.2000405@cn.fujitsu.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Ingo Molnar
parent
28b4e0d86a
commit
091ad3658e
4 changed files with 28 additions and 28 deletions
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@ -280,7 +280,7 @@ static inline void tracepoint_synchronize_unregister(void)
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* TRACE_EVENT_FN to perform any (un)registration work.
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*/
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#define TRACE_EVENT_TEMPLATE(name, proto, args, tstruct, assign, print)
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#define DECLARE_EVENT_CLASS(name, proto, args, tstruct, assign, print)
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#define DEFINE_EVENT(template, name, proto, args) \
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DECLARE_TRACE(name, PARAMS(proto), PARAMS(args))
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#define DEFINE_EVENT_PRINT(template, name, proto, args, print) \
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@ -71,7 +71,7 @@
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#undef TRACE_EVENT
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#undef TRACE_EVENT_FN
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#undef TRACE_EVENT_TEMPLATE
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#undef DECLARE_EVENT_CLASS
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#undef DEFINE_EVENT
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#undef DEFINE_EVENT_PRINT
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#undef TRACE_HEADER_MULTI_READ
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@ -83,7 +83,7 @@ TRACE_EVENT(sched_wait_task,
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* (NOTE: the 'rq' argument is not used by generic trace events,
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* but used by the latency tracer plugin. )
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*/
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TRACE_EVENT_TEMPLATE(sched_wakeup_template,
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DECLARE_EVENT_CLASS(sched_wakeup_template,
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TP_PROTO(struct rq *rq, struct task_struct *p, int success),
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@ -197,7 +197,7 @@ TRACE_EVENT(sched_migrate_task,
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__entry->orig_cpu, __entry->dest_cpu)
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);
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TRACE_EVENT_TEMPLATE(sched_process_template,
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DECLARE_EVENT_CLASS(sched_process_template,
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TP_PROTO(struct task_struct *p),
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@ -316,7 +316,7 @@ TRACE_EVENT(sched_signal_send,
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* XXX the below sched_stat tracepoints only apply to SCHED_OTHER/BATCH/IDLE
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* adding sched_stat support to SCHED_FIFO/RR would be welcome.
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*/
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TRACE_EVENT_TEMPLATE(sched_stat_template,
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DECLARE_EVENT_CLASS(sched_stat_template,
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TP_PROTO(struct task_struct *tsk, u64 delay),
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@ -19,17 +19,17 @@
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#include <linux/ftrace_event.h>
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/*
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* TRACE_EVENT_TEMPLATE can be used to add a generic function
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* DECLARE_EVENT_CLASS can be used to add a generic function
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* handlers for events. That is, if all events have the same
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* parameters and just have distinct trace points.
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* Each tracepoint can be defined with DEFINE_EVENT and that
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* will map the TRACE_EVENT_TEMPLATE to the tracepoint.
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* will map the DECLARE_EVENT_CLASS to the tracepoint.
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*
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* TRACE_EVENT is a one to one mapping between tracepoint and template.
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*/
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#undef TRACE_EVENT
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#define TRACE_EVENT(name, proto, args, tstruct, assign, print) \
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TRACE_EVENT_TEMPLATE(name, \
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DECLARE_EVENT_CLASS(name, \
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PARAMS(proto), \
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PARAMS(args), \
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PARAMS(tstruct), \
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@ -56,8 +56,8 @@
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#undef TP_STRUCT__entry
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#define TP_STRUCT__entry(args...) args
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#undef TRACE_EVENT_TEMPLATE
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#define TRACE_EVENT_TEMPLATE(name, proto, args, tstruct, assign, print) \
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#undef DECLARE_EVENT_CLASS
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#define DECLARE_EVENT_CLASS(name, proto, args, tstruct, assign, print) \
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struct ftrace_raw_##name { \
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struct trace_entry ent; \
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tstruct \
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@ -115,8 +115,8 @@
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#undef __string
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#define __string(item, src) __dynamic_array(char, item, -1)
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#undef TRACE_EVENT_TEMPLATE
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#define TRACE_EVENT_TEMPLATE(call, proto, args, tstruct, assign, print) \
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#undef DECLARE_EVENT_CLASS
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#define DECLARE_EVENT_CLASS(call, proto, args, tstruct, assign, print) \
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struct ftrace_data_offsets_##call { \
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tstruct; \
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};
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@ -203,8 +203,8 @@
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#undef TP_perf_assign
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#define TP_perf_assign(args...)
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#undef TRACE_EVENT_TEMPLATE
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#define TRACE_EVENT_TEMPLATE(call, proto, args, tstruct, func, print) \
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#undef DECLARE_EVENT_CLASS
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#define DECLARE_EVENT_CLASS(call, proto, args, tstruct, func, print) \
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static int \
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ftrace_format_setup_##call(struct ftrace_event_call *unused, \
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struct trace_seq *s) \
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@ -321,8 +321,8 @@ ftrace_format_##name(struct ftrace_event_call *unused, \
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ftrace_print_symbols_seq(p, value, symbols); \
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})
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#undef TRACE_EVENT_TEMPLATE
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#define TRACE_EVENT_TEMPLATE(call, proto, args, tstruct, assign, print) \
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#undef DECLARE_EVENT_CLASS
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#define DECLARE_EVENT_CLASS(call, proto, args, tstruct, assign, print) \
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static enum print_line_t \
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ftrace_raw_output_id_##call(int event_id, const char *name, \
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struct trace_iterator *iter, int flags) \
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@ -428,8 +428,8 @@ ftrace_raw_output_##call(struct trace_iterator *iter, int flags) \
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#undef __string
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#define __string(item, src) __dynamic_array(char, item, -1)
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#undef TRACE_EVENT_TEMPLATE
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#define TRACE_EVENT_TEMPLATE(call, proto, args, tstruct, func, print) \
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#undef DECLARE_EVENT_CLASS
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#define DECLARE_EVENT_CLASS(call, proto, args, tstruct, func, print) \
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static int \
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ftrace_define_fields_##call(struct ftrace_event_call *event_call) \
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{ \
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@ -480,8 +480,8 @@ ftrace_define_fields_##call(struct ftrace_event_call *event_call) \
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#undef __string
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#define __string(item, src) __dynamic_array(char, item, strlen(src) + 1)
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#undef TRACE_EVENT_TEMPLATE
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#define TRACE_EVENT_TEMPLATE(call, proto, args, tstruct, assign, print) \
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#undef DECLARE_EVENT_CLASS
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#define DECLARE_EVENT_CLASS(call, proto, args, tstruct, assign, print) \
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static inline int ftrace_get_offsets_##call( \
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struct ftrace_data_offsets_##call *__data_offsets, proto) \
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{ \
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@ -521,8 +521,8 @@ static inline int ftrace_get_offsets_##call( \
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*
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*/
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#undef TRACE_EVENT_TEMPLATE
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#define TRACE_EVENT_TEMPLATE(call, proto, args, tstruct, assign, print)
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#undef DECLARE_EVENT_CLASS
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#define DECLARE_EVENT_CLASS(call, proto, args, tstruct, assign, print)
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#undef DEFINE_EVENT
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#define DEFINE_EVENT(template, name, proto, args) \
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@ -681,8 +681,8 @@ static void ftrace_profile_disable_##name(struct ftrace_event_call *unused)\
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#define __assign_str(dst, src) \
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strcpy(__get_str(dst), src);
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#undef TRACE_EVENT_TEMPLATE
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#define TRACE_EVENT_TEMPLATE(call, proto, args, tstruct, assign, print) \
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#undef DECLARE_EVENT_CLASS
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#define DECLARE_EVENT_CLASS(call, proto, args, tstruct, assign, print) \
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\
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static void ftrace_raw_event_id_##call(struct ftrace_event_call *event_call, \
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proto) \
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@ -764,8 +764,8 @@ static int ftrace_raw_init_event_##call(struct ftrace_event_call *unused)\
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#include TRACE_INCLUDE(TRACE_INCLUDE_FILE)
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#undef TRACE_EVENT_TEMPLATE
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#define TRACE_EVENT_TEMPLATE(call, proto, args, tstruct, assign, print)
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#undef DECLARE_EVENT_CLASS
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#define DECLARE_EVENT_CLASS(call, proto, args, tstruct, assign, print)
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#undef DEFINE_EVENT
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#define DEFINE_EVENT(template, call, proto, args) \
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@ -885,8 +885,8 @@ __attribute__((section("_ftrace_events"))) event_##call = { \
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#undef __perf_count
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#define __perf_count(c) __count = (c)
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#undef TRACE_EVENT_TEMPLATE
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#define TRACE_EVENT_TEMPLATE(call, proto, args, tstruct, assign, print) \
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#undef DECLARE_EVENT_CLASS
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#define DECLARE_EVENT_CLASS(call, proto, args, tstruct, assign, print) \
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static void \
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ftrace_profile_templ_##call(struct ftrace_event_call *event_call, \
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proto) \
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