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perf_counter: hook up the tracepoint events

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Impact: new perfcounters feature

Enable usage of tracepoints as perf counter events.

tracepoint event ids can be found in /debug/tracing/event/*/*/id
and (for now) are represented as -65536+id in the type field.

Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Steven Rostedt <rostedt@goodmis.org>
Orig-LKML-Reference: <20090319194233.744044174@chello.nl>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Peter Zijlstra
2009-03-19 20:26:17 +01:00
committed by Ingo Molnar
parent f160095275
commit e077df4f43
3 changed files with 51 additions and 0 deletions
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5
init/Kconfig
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@@ -947,6 +947,11 @@ config PERF_COUNTERS
Say Y if unsure.
config EVENT_PROFILE
bool "Tracepoint profile sources"
depends on PERF_COUNTERS && EVENT_TRACER
default y
endmenu
config VM_EVENT_COUNTERS