lk/linux-kernel-test
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

tracing: New macro to set up initial event flags value

Browse Source 
This introduces the new TRACE_EVENT_FLAGS() macro in order
to set up initial event flags value.

This macro must simply follow the definition of a trace event
and take the event name and the flag value as parameters:

TRACE_EVENT(my_event, .....
....
);

TRACE_EVENT_FLAGS(my_event, 1)

This will set up 1 as the initial my_event->flags value.

Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Li Zefan <lizf@cn.fujitsu.com>
Cc: Jason Baron <jbaron@redhat.com>
This commit is contained in:
Frederic Weisbecker
2010-11-18 01:46:57 +01:00
parent 61c32659b1
commit 1ed0c59711
2 changed files with 16 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
include/linux/tracepoint.h
View File

@@ -234,6 +234,8 @@ do_trace: \
PARAMS(void *__data, proto), \ PARAMS(void *__data, proto), \
PARAMS(__data, args)) PARAMS(__data, args))
#define TRACE_EVENT_FLAGS(event, flag)
#endif /* DECLARE_TRACE */ #endif /* DECLARE_TRACE */
#ifndef TRACE_EVENT #ifndef TRACE_EVENT
@@ -354,4 +356,6 @@ do_trace: \
assign, print, reg, unreg) \ assign, print, reg, unreg) \
DECLARE_TRACE(name, PARAMS(proto), PARAMS(args)) DECLARE_TRACE(name, PARAMS(proto), PARAMS(args))
#define TRACE_EVENT_FLAGS(event, flag)
#endif /* ifdef TRACE_EVENT (see note above) */ #endif /* ifdef TRACE_EVENT (see note above) */

12
include/trace/ftrace.h
View File

@@ -82,6 +82,15 @@
TRACE_EVENT(name, PARAMS(proto), PARAMS(args), \ TRACE_EVENT(name, PARAMS(proto), PARAMS(args), \
PARAMS(tstruct), PARAMS(assign), PARAMS(print)) \ PARAMS(tstruct), PARAMS(assign), PARAMS(print)) \
#undef TRACE_EVENT_FLAGS
#define TRACE_EVENT_FLAGS(name, value) \
static int __init trace_init_flags_##name(void) \
{ \
event_##name.flags = value; \
return 0; \
} \
early_initcall(trace_init_flags_##name);
#include TRACE_INCLUDE(TRACE_INCLUDE_FILE) #include TRACE_INCLUDE(TRACE_INCLUDE_FILE)
@@ -129,6 +138,9 @@
#define DEFINE_EVENT_PRINT(template, name, proto, args, print) \ #define DEFINE_EVENT_PRINT(template, name, proto, args, print) \
DEFINE_EVENT(template, name, PARAMS(proto), PARAMS(args)) DEFINE_EVENT(template, name, PARAMS(proto), PARAMS(args))
#undef TRACE_EVENT_FLAGS
#define TRACE_EVENT_FLAGS(event, flag)
#include TRACE_INCLUDE(TRACE_INCLUDE_FILE) #include TRACE_INCLUDE(TRACE_INCLUDE_FILE)
/* /*