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authorJiri Olsa <jolsa@redhat.com>2012-07-04 00:00:39 +0200
committerArnaldo Carvalho de Melo <acme@redhat.com>2012-07-05 11:22:29 -0300
commit8c5f0a84c6b16e04195001bfd78281909519cf09 (patch)
tree901bbc2804d4f56fc60b38d442a130306ec334a4
parentebf124ffab59e9e1c6179347fe95fe5baf32dcd7 (diff)
perf tools: Add empty rule for new line in event syntax parsing
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>
-rw-r--r--tools/perf/util/parse-events.l1
1 files changed, 1 insertions, 0 deletions
diff --git a/tools/perf/util/parse-events.l b/tools/perf/util/parse-events.l
index a06689474210..6cbe092e6c3b 100644
--- a/tools/perf/util/parse-events.l
+++ b/tools/perf/util/parse-events.l
@@ -152,6 +152,7 @@ r{num_raw_hex} { return raw(yyscanner); }
, { return ','; }
: { return ':'; }
= { return '='; }
+\n { }
<mem>{
{modifier_bp} { return str(yyscanner, PE_MODIFIER_BP); }