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ftrace: Allow to specify filter field type for ftrace events

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Adding FILTER_TRACE_FN event field type for function tracepoint
event, so it can be properly recognized within filtering code.

Currently all fields of ftrace subsystem events share the common
field type FILTER_OTHER. Since the function trace fields need
special care within the filtering code we need to recognize it
properly, hence adding the FILTER_TRACE_FN event type.

Adding filter parameter to the FTRACE_ENTRY macro, to specify the
filter field type for the event.

Link: http://lkml.kernel.org/r/1329317514-8131-7-git-send-email-jolsa@redhat.com

Signed-off-by: Jiri Olsa <jolsa@redhat.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
This commit is contained in:
Jiri Olsa
2012-02-15 15:51:53 +01:00
committed by Steven Rostedt
parent ced39002f5
commit 02aa3162ed
5 changed files with 83 additions and 47 deletions
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1
include/linux/ftrace_event.h
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@@ -245,6 +245,7 @@ enum {
FILTER_STATIC_STRING,
FILTER_DYN_STRING,
FILTER_PTR_STRING,
FILTER_TRACE_FN,
};
#define EVENT_STORAGE_SIZE 128