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perf tools: Notify user when unrecognized event is specified

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Previously no indication was given about what went wrong.

Signed-off-by: Marti Raudsepp <marti@juffo.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Paul Mackerras <paulus@samba.org>
LKML-Reference: <03ec9ee96f17cef05424.1256603584@localhost>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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Marti Raudsepp 2009-10-27 00:33:04 +00:00 committed by Ingo Molnar
parent 5b2bb75a0d
commit 85df6f683e
1 changed files with 2 additions and 0 deletions
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2
tools/perf/util/parse-events.c
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@ -678,6 +678,8 @@ parse_event_symbols(const char **str, struct perf_event_attr *attr)
if (ret != EVT_FAILED)
goto modifier;
fprintf(stderr, "invalid or unsupported event: '%s'\n", *str);
fprintf(stderr, "Run 'perf list' for a list of valid events\n");
return EVT_FAILED;
modifier: