perf/x86/intel: Expose LBR callstack to user space tooling

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With LBR call stack feature enable, there are three callchain options.
Enable the 3rd callchain option (LBR callstack) to user space tooling.

Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: Andy Lutomirski <luto@amacapital.net>
Cc: Kan Liang <kan.liang@intel.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Vince Weaver <vincent.weaver@maine.edu>
Cc: linux-api@vger.kernel.org
Link: http://lkml.kernel.org/r/20141105093759.GQ10501@worktop.programming.kicks-ass.net
Signed-off-by: Ingo Molnar <mingo@kernel.org>

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This commit is contained in:

Peter Zijlstra 2014-11-05 10:36:45 +01:00 • committed by Ingo Molnar

parent aa54ae9b87

commit 2c44b1936b

3 changed files with 12 additions and 20 deletions

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8

arch/x86/kernel/cpu/perf_event.h

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8

arch/x86/kernel/cpu/perf_event_intel_lbr.c

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16

include/uapi/linux/perf_event.h

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