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tracing/kprobes: Add event profiling support

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Add *probe_profile_enable/disable to support kprobes raw events
sampling from perf counters, like other ftrace events, when
CONFIG_PROFILE_EVENT=y.

Signed-off-by: Masami Hiramatsu <mhiramat@redhat.com>
Cc: Jim Keniston <jkenisto@us.ibm.com>
Cc: Ananth N Mavinakayanahalli <ananth@in.ibm.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Christoph Hellwig <hch@infradead.org>
Cc: Frank Ch. Eigler <fche@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Jason Baron <jbaron@redhat.com>
Cc: K.Prasad <prasad@linux.vnet.ibm.com>
Cc: Lai Jiangshan <laijs@cn.fujitsu.com>
Cc: Li Zefan <lizf@cn.fujitsu.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Tom Zanussi <tzanussi@gmail.com>
LKML-Reference: <20090910235329.22412.94731.stgit@dhcp-100-2-132.bos.redhat.com>
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
This commit is contained in:
Masami Hiramatsu
2009-09-10 19:53:30 -04:00
committed by Frederic Weisbecker
parent 4a846b443b
commit e08d1c657f
2 changed files with 111 additions and 3 deletions
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4
Documentation/trace/kprobetrace.txt
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@@ -62,13 +62,15 @@ enabled:
You can enable/disable the probe by writing 1 or 0 on it.
format:
It shows the format of this probe event. It also shows aliases of arguments
This shows the format of this probe event. It also shows aliases of arguments
which you specified to kprobe_events.
filter:
You can write filtering rules of this event. And you can use both of aliase
names and field names for describing filters.
id:
This shows the id of this probe event.
Event Profiling
---------------