From: Ian Rogers <irogers@google.com>
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>
Subject: [PATCH 1/8] perf expr: unlimited escaped characters in a symbol
Date: Wed, 22 Apr 2020 00:48:02 -0700 [thread overview]
Message-ID: <20200422074809.160248-2-irogers@google.com> (raw)
In-Reply-To: <20200422074809.160248-1-irogers@google.com>
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
next prev parent reply other threads:[~2020-04-22 7:48 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-04-22 7:48 [PATCH 0/8] perf metric fixes and test Ian Rogers
2020-04-22 7:48 ` Ian Rogers [this message]
2020-04-22 7:48 ` [PATCH 2/8] perf metrics: fix parse errors in cascade lake metrics Ian Rogers
2020-04-22 14:38 ` Andi Kleen
2020-04-22 15:34 ` Ian Rogers
2020-04-22 16:18 ` Ian Rogers
2020-04-23 1:08 ` Jin, Yao
2020-04-23 5:53 ` Jin, Yao
2020-04-23 6:09 ` Ian Rogers
2020-04-23 7:51 ` Jin, Yao
2020-04-23 10:10 ` Jiri Olsa
2020-04-23 10:11 ` Jiri Olsa
2020-04-23 14:34 ` Ian Rogers
2020-04-22 7:48 ` [PATCH 3/8] perf metrics: fix parse errors in skylake metrics Ian Rogers
2020-04-22 7:48 ` [PATCH 4/8] perf expr: allow ',' to be an other token Ian Rogers
2020-04-22 7:48 ` [PATCH 5/8] perf expr: increase max other Ian Rogers
2020-04-22 7:48 ` [PATCH 6/8] perf expr: parse numbers as doubles Ian Rogers
2020-04-22 7:48 ` [PATCH 7/8] perf expr: debug lex if debugging yaxx Ian Rogers
2020-04-22 7:48 ` [PATCH 8/8] perf test: add expr test for pmu metrics Ian Rogers
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