Thread (4 messages) flat view 4 messages, 1 author, 2021-01-20
STALE2052d

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[PATCH 2/3] perf tools: Fix lexical definition of event name

From: Shunsuke Nakamura <hidden>
Date: 2021-01-20 08:36:12
Subsystem: performance events subsystem, the rest · Maintainers: Peter Zijlstra, Ingo Molnar, Arnaldo Carvalho de Melo, Namhyung Kim, Linus Torvalds

Fix the lexical definition of event name so that the numbers are recognizable.

A64FX defines an event name that starts with a number.
 - 0inst_commit
 - 1inst_commit
 - 2inst_commit
 - 3inst_commit
 - 4inst_commit

---
 tools/perf/util/parse-events.l | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/tools/perf/util/parse-events.l b/tools/perf/util/parse-events.l
index 9db5097..e6bbbd0 100644
--- a/tools/perf/util/parse-events.l
+++ b/tools/perf/util/parse-events.l
@@ -205,7 +205,7 @@ bpf_source	[^,{}]+\.c[a-zA-Z0-9._]*
 num_dec		[0-9]+
 num_hex		0x[a-fA-F0-9]+
 num_raw_hex	[a-fA-F0-9]+
-name		[a-zA-Z_*?\[\]][a-zA-Z0-9_*?.\[\]]*
+name		[a-zA-Z0-9_*?\[\]][a-zA-Z0-9_*?.\[\]]*
 name_tag	[\'][a-zA-Z_*?\[\]][a-zA-Z0-9_*?\-,\.\[\]:=]*[\']
 name_minus	[a-zA-Z_*?][a-zA-Z0-9\-_*?.:]*
 drv_cfg_term	[a-zA-Z0-9_\.]+(=[a-zA-Z0-9_*?\.:]+)?
-- 
1.8.3.1


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