On Tue, Jun 02, 2015 at 10:12:11AM -0700, Sukadev Bhattiprolu wrote:

From: Andi Kleen <redacted>

Previously we were dropping the useful longer descriptions that some
events have in the event list completely. This patch makes them appear with
perf list.

Old perf list:

baclears:
  baclears.all
       [Counts the number of baclears]

vs new:

perf list -v:
...
baclears:
  baclears.all
       [The BACLEARS event counts the number of times the front end is resteered, mainly when
        the Branch Prediction Unit cannot provide a correct prediction and this is corrected
        by the Branch Address Calculator at the front end. The BACLEARS.ANY event counts the
        number of baclears for any type of branch]

Signed-off-by: Andi Kleen <redacted>
Signed-off-by: Sukadev Bhattiprolu <redacted>
---
 tools/perf/builtin-list.c          |    9 ++++++---
 tools/perf/pmu-events/jevents.c    |   29 ++++++++++++++++++++---------
 tools/perf/pmu-events/jevents.h    |    2 +-
 tools/perf/pmu-events/pmu-events.h |    1 +
 tools/perf/util/parse-events.c     |    4 ++--
 tools/perf/util/parse-events.h     |    2 +-
 tools/perf/util/pmu.c              |   17 ++++++++++++-----
 tools/perf/util/pmu.h              |    4 +++-
 8 files changed, 46 insertions(+), 22 deletions(-)

I think this change should be split into:
  - jevents update of parsing out PublicDescription tag
  - alias support for long_desc
  - perf list update

jirka