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events: Rename TRACE_EVENT_TEMPLATE() to DECLARE_EVENT_CLASS()

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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 2009-11-26 09:04:55 +01:00
parent 28b4e0d86a
commit 091ad3658e
4 changed files with 28 additions and 28 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
include/linux/tracepoint.h
View File

@ -280,7 +280,7 @@ static inline void tracepoint_synchronize_unregister(void)
* TRACE_EVENT_FN to perform any (un)registration work.
*/
#define TRACE_EVENT_TEMPLATE(name, proto, args, tstruct, assign, print)
#define DECLARE_EVENT_CLASS(name, proto, args, tstruct, assign, print)
#define DEFINE_EVENT(template, name, proto, args) \
DECLARE_TRACE(name, PARAMS(proto), PARAMS(args))
#define DEFINE_EVENT_PRINT(template, name, proto, args, print) \

2
include/trace/define_trace.h
View File

@ -71,7 +71,7 @@
#undef TRACE_EVENT
#undef TRACE_EVENT_FN
#undef TRACE_EVENT_TEMPLATE
#undef DECLARE_EVENT_CLASS
#undef DEFINE_EVENT
#undef DEFINE_EVENT_PRINT
#undef TRACE_HEADER_MULTI_READ

6
include/trace/events/sched.h
View File

@ -83,7 +83,7 @@ TRACE_EVENT(sched_wait_task,
* (NOTE: the 'rq' argument is not used by generic trace events,
* but used by the latency tracer plugin. )
*/
TRACE_EVENT_TEMPLATE(sched_wakeup_template,
DECLARE_EVENT_CLASS(sched_wakeup_template,
TP_PROTO(struct rq *rq, struct task_struct *p, int success),
@ -197,7 +197,7 @@ TRACE_EVENT(sched_migrate_task,
__entry->orig_cpu, __entry->dest_cpu)
);
TRACE_EVENT_TEMPLATE(sched_process_template,
DECLARE_EVENT_CLASS(sched_process_template,
TP_PROTO(struct task_struct *p),
@ -316,7 +316,7 @@ TRACE_EVENT(sched_signal_send,
* XXX the below sched_stat tracepoints only apply to SCHED_OTHER/BATCH/IDLE
* adding sched_stat support to SCHED_FIFO/RR would be welcome.
*/
TRACE_EVENT_TEMPLATE(sched_stat_template,
DECLARE_EVENT_CLASS(sched_stat_template,
TP_PROTO(struct task_struct *tsk, u64 delay),

46
include/trace/ftrace.h
View File

@ -19,17 +19,17 @@
#include <linux/ftrace_event.h>
/*
* TRACE_EVENT_TEMPLATE can be used to add a generic function
* DECLARE_EVENT_CLASS can be used to add a generic function
* handlers for events. That is, if all events have the same
* parameters and just have distinct trace points.
* Each tracepoint can be defined with DEFINE_EVENT and that
* will map the TRACE_EVENT_TEMPLATE to the tracepoint.
* will map the DECLARE_EVENT_CLASS to the tracepoint.
*
* TRACE_EVENT is a one to one mapping between tracepoint and template.
*/
#undef TRACE_EVENT
#define TRACE_EVENT(name, proto, args, tstruct, assign, print) \
TRACE_EVENT_TEMPLATE(name, \
DECLARE_EVENT_CLASS(name, \
PARAMS(proto), \
PARAMS(args), \
PARAMS(tstruct), \
@ -56,8 +56,8 @@
#undef TP_STRUCT__entry
#define TP_STRUCT__entry(args...) args
#undef TRACE_EVENT_TEMPLATE
#define TRACE_EVENT_TEMPLATE(name, proto, args, tstruct, assign, print) \
#undef DECLARE_EVENT_CLASS
#define DECLARE_EVENT_CLASS(name, proto, args, tstruct, assign, print) \
struct ftrace_raw_##name { \
struct trace_entry ent; \
tstruct \
@ -115,8 +115,8 @@
#undef __string
#define __string(item, src) __dynamic_array(char, item, -1)
#undef TRACE_EVENT_TEMPLATE
#define TRACE_EVENT_TEMPLATE(call, proto, args, tstruct, assign, print) \
#undef DECLARE_EVENT_CLASS
#define DECLARE_EVENT_CLASS(call, proto, args, tstruct, assign, print) \
struct ftrace_data_offsets_##call { \
tstruct; \
};
@ -203,8 +203,8 @@
#undef TP_perf_assign
#define TP_perf_assign(args...)
#undef TRACE_EVENT_TEMPLATE
#define TRACE_EVENT_TEMPLATE(call, proto, args, tstruct, func, print) \
#undef DECLARE_EVENT_CLASS
#define DECLARE_EVENT_CLASS(call, proto, args, tstruct, func, print) \
static int \
ftrace_format_setup_##call(struct ftrace_event_call *unused, \
struct trace_seq *s) \
@ -321,8 +321,8 @@ ftrace_format_##name(struct ftrace_event_call *unused, \
ftrace_print_symbols_seq(p, value, symbols); \
})
#undef TRACE_EVENT_TEMPLATE
#define TRACE_EVENT_TEMPLATE(call, proto, args, tstruct, assign, print) \
#undef DECLARE_EVENT_CLASS
#define DECLARE_EVENT_CLASS(call, proto, args, tstruct, assign, print) \
static enum print_line_t \
ftrace_raw_output_id_##call(int event_id, const char *name, \
struct trace_iterator *iter, int flags) \
@ -428,8 +428,8 @@ ftrace_raw_output_##call(struct trace_iterator *iter, int flags) \
#undef __string
#define __string(item, src) __dynamic_array(char, item, -1)
#undef TRACE_EVENT_TEMPLATE
#define TRACE_EVENT_TEMPLATE(call, proto, args, tstruct, func, print) \
#undef DECLARE_EVENT_CLASS
#define DECLARE_EVENT_CLASS(call, proto, args, tstruct, func, print) \
static int \
ftrace_define_fields_##call(struct ftrace_event_call *event_call) \
{ \
@ -480,8 +480,8 @@ ftrace_define_fields_##call(struct ftrace_event_call *event_call) \
#undef __string
#define __string(item, src) __dynamic_array(char, item, strlen(src) + 1)
#undef TRACE_EVENT_TEMPLATE
#define TRACE_EVENT_TEMPLATE(call, proto, args, tstruct, assign, print) \
#undef DECLARE_EVENT_CLASS
#define DECLARE_EVENT_CLASS(call, proto, args, tstruct, assign, print) \
static inline int ftrace_get_offsets_##call( \
struct ftrace_data_offsets_##call *__data_offsets, proto) \
{ \
@ -521,8 +521,8 @@ static inline int ftrace_get_offsets_##call( \
*
*/
#undef TRACE_EVENT_TEMPLATE
#define TRACE_EVENT_TEMPLATE(call, proto, args, tstruct, assign, print)
#undef DECLARE_EVENT_CLASS
#define DECLARE_EVENT_CLASS(call, proto, args, tstruct, assign, print)
#undef DEFINE_EVENT
#define DEFINE_EVENT(template, name, proto, args) \
@ -681,8 +681,8 @@ static void ftrace_profile_disable_##name(struct ftrace_event_call *unused)\
#define __assign_str(dst, src) \
strcpy(__get_str(dst), src);
#undef TRACE_EVENT_TEMPLATE
#define TRACE_EVENT_TEMPLATE(call, proto, args, tstruct, assign, print) \
#undef DECLARE_EVENT_CLASS
#define DECLARE_EVENT_CLASS(call, proto, args, tstruct, assign, print) \
\
static void ftrace_raw_event_id_##call(struct ftrace_event_call *event_call, \
proto) \
@ -764,8 +764,8 @@ static int ftrace_raw_init_event_##call(struct ftrace_event_call *unused)\
#include TRACE_INCLUDE(TRACE_INCLUDE_FILE)
#undef TRACE_EVENT_TEMPLATE
#define TRACE_EVENT_TEMPLATE(call, proto, args, tstruct, assign, print)
#undef DECLARE_EVENT_CLASS
#define DECLARE_EVENT_CLASS(call, proto, args, tstruct, assign, print)
#undef DEFINE_EVENT
#define DEFINE_EVENT(template, call, proto, args) \
@ -885,8 +885,8 @@ __attribute__((section("_ftrace_events"))) event_##call = { \
#undef __perf_count
#define __perf_count(c) __count = (c)
#undef TRACE_EVENT_TEMPLATE
#define TRACE_EVENT_TEMPLATE(call, proto, args, tstruct, assign, print) \
#undef DECLARE_EVENT_CLASS
#define DECLARE_EVENT_CLASS(call, proto, args, tstruct, assign, print) \
static void \
ftrace_profile_templ_##call(struct ftrace_event_call *event_call, \
proto) \