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perf tools: Add empty rule for new line in event syntax parsing

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The flex generator prints out each input character that is ignored by
lex rules.

Since the alias processing, we can have '\n' characters on input. We
need to assign empty rule to it, so it's not printed out.

Signed-off-by: Jiri Olsa <jolsa@redhat.com>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/1341352848-11833-2-git-send-email-jolsa@redhat.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Jiri Olsa 2012-07-04 00:00:39 +02:00 committed by Arnaldo Carvalho de Melo
parent ebf124ffab
commit 8c5f0a84c6
1 changed files with 1 additions and 0 deletions
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tools/perf/util/parse-events.l
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@ -152,6 +152,7 @@ r{num_raw_hex} { return raw(yyscanner); }
, { return ','; }
: { return ':'; }
= { return '='; }
\n { }
<mem>{
{modifier_bp} { return str(yyscanner, PE_MODIFIER_BP); }