From mboxrd@z Thu Jan  1 00:00:00 1970
From: Ian Rogers <irogers@google.com>
Subject: [PATCH 1/8] perf expr: unlimited escaped characters in a symbol
Date: Wed, 22 Apr 2020 00:48:02 -0700
Message-ID: <20200422074809.160248-2-irogers@google.com>
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To: Peter Zijlstra <peterz@infradead.org>, Ingo Molnar <mingo@redhat.com>, Arnaldo Carvalho de Melo <acme@kernel.org>, Mark Rutland <mark.rutland@arm.com>, Alexander Shishkin <alexander.shishkin@linux.intel.com>, Jiri Olsa <jolsa@redhat.com>, Namhyung Kim <namhyung@kernel.org>, Kan Liang <kan.liang@linux.intel.com>, Andi Kleen <ak@linux.intel.com>, Haiyan Song <haiyanx.song@intel.com>, Jin Yao <yao.jin@linux.intel.com>, Ravi Bangoria <ravi.bangoria@linux.ibm.com>, John Garry <john.garry@huawei.com>, Leo Yan <leo.yan@linaro.org>, Adrian Hunter <adrian.hunter@intel.com>, linux-kernel@vger.kernel.org, linux-perf-users@vger.kernel.org
Cc: Stephane Eranian <eranian@google.com>, Ian Rogers <irogers@google.com>
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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