[PATCH v2 01/11] perf expr: unlimited escaped characters in a symbol

Ian Rogers
2020-04-22T22:04:41Z

Current expression allows 2 escaped '-,=' characters. However, some
metrics require more, for example Haswell DRAM_BW_Use.

Fixes: 26226a97724d (perf expr: Move expr lexer to flex)
Signed-off-by: Ian Rogers <irogers@google.com>
---
tools/perf/util/expr.l | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/perf/util/expr.l b/tools/perf/util/expr.l
index 2582c2464938..95bcf3629edf 100644
--- a/tools/perf/util/expr.l
+++ b/tools/perf/util/expr.l
@@ -73,7 +73,7 @@ number [0-9]+
sch [-,=]
spec \\{sch}
sym [0-9a-zA-Z_\.:@]+
-symbol {spec}*{sym}*{spec}*{sym}*
+symbol ({spec}|{sym})+

%%
struct expr_scanner_ctx *sctx = expr_get_extra(yyscanner);
--
2.26.2.303.gf8c07b1a785-goog