perf stat: Fail softly on unsupported events
authorIngo Molnar <mingo@elte.hu>
Fri, 29 Apr 2011 14:11:03 +0000 (16:11 +0200)
committerIngo Molnar <mingo@elte.hu>
Fri, 29 Apr 2011 14:22:33 +0000 (16:22 +0200)
commit370faf1dd0461ad811852c8abbbcd3d73b1e4fc4
tree6933cc889ea07a0dc0841d9af90304a39cf09ec0
parentfce3c786d3a49eff397583b4b62fa38df90db937
perf stat: Fail softly on unsupported events

David Ahern reported this perf stat failure:

> # /tmp/build-perf/perf stat -- sleep 1
>   Error: stalled-cycles-frontend event is not supported.
>   Fatal: Not all events could be opened.
>
> This is a Dell R410 with an E5620 processor.

Fail in a softer fashion on unknown/unsupported events.

Reported-by: David Ahern <dsahern@gmail.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Link: http://lkml.kernel.org/n/tip-7y40wib8n006io7hjpn1dsrm@git.kernel.org
Signed-off-by: Ingo Molnar <mingo@elte.hu>
tools/perf/builtin-stat.c