tree f3568c9d779c282732c7bbeccb75a4bb3041b857
parent 023c54c42288416b4f43c67bfd5049a76926fad6
author Peter Zijlstra <a.p.zijlstra@chello.nl> 1238432834 +0200
committer Ingo Molnar <mingo@elte.hu> 1239003043 +0200

perf_counter: provide generic callchain bits

Provide the generic callchain support bits. If hw_event->callchain is
set the arch specific perf_callchain() function is called upon to
provide a perf_callchain_entry structure filled with the current
callchain.

If it does so, it is added to the overflow output event.

Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Acked-by: Paul Mackerras <paulus@samba.org>
Orig-LKML-Reference: <20090330171024.254266860@chello.nl>
Signed-off-by: Ingo Molnar <mingo@elte.hu>