From mboxrd@z Thu Jan 1 00:00:00 1970 From: Ian Rogers Subject: [RFC PATCH v2 01/23] perf expr: unlimited escaped characters in a symbol Date: Thu, 7 May 2020 07:07:57 -0700 Message-ID: <20200507140819.126960-2-irogers@google.com> References: <20200507140819.126960-1-irogers@google.com> Mime-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Return-path: In-Reply-To: <20200507140819.126960-1-irogers@google.com> Sender: linux-kernel-owner@vger.kernel.org To: Peter Zijlstra , Ingo Molnar , Arnaldo Carvalho de Melo , Mark Rutland , Alexander Shishkin , Jiri Olsa , Namhyung Kim , Alexei Starovoitov , Daniel Borkmann , Martin KaFai Lau , Song Liu , Yonghong Song , Andrii Nakryiko , John Fastabend , KP Singh , Kajol Jain , Andi Kleen , John Garry , Jin Yao , Kan Liang , Cong Cc: netdev@vger.kernel.org, bpf@vger.kernel.org, linux-perf-users@vger.kernel.org, Stephane Eranian , Ian Rogers List-Id: linux-perf-users.vger.kernel.org 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 --- 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 74b9b59b1aa5..73db6a9ef97e 100644 --- a/tools/perf/util/expr.l +++ b/tools/perf/util/expr.l @@ -86,7 +86,7 @@ number [0-9]+ sch [-,=] spec \\{sch} sym [0-9a-zA-Z_\.:@?]+ -symbol {spec}*{sym}*{spec}*{sym}*{spec}*{sym} +symbol ({spec}|{sym})+ %% struct expr_scanner_ctx *sctx = expr_get_extra(yyscanner); -- 2.26.2.526.g744177e7f7-goog