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Date:   Thu,  7 May 2020 07:08:03 -0700
From:   Ian Rogers <irogers@...gle.com>
To:     Peter Zijlstra <peterz@...radead.org>,
        Ingo Molnar <mingo@...hat.com>,
        Arnaldo Carvalho de Melo <acme@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
        Jiri Olsa <jolsa@...hat.com>,
        Namhyung Kim <namhyung@...nel.org>,
        Alexei Starovoitov <ast@...nel.org>,
        Daniel Borkmann <daniel@...earbox.net>,
        Martin KaFai Lau <kafai@...com>,
        Song Liu <songliubraving@...com>, Yonghong Song <yhs@...com>,
        Andrii Nakryiko <andriin@...com>,
        John Fastabend <john.fastabend@...il.com>,
        KP Singh <kpsingh@...omium.org>,
        Kajol Jain <kjain@...ux.ibm.com>,
        Andi Kleen <ak@...ux.intel.com>,
        John Garry <john.garry@...wei.com>,
        Jin Yao <yao.jin@...ux.intel.com>,
        Kan Liang <kan.liang@...ux.intel.com>,
        Cong Wang <xiyou.wangcong@...il.com>,
        Kim Phillips <kim.phillips@....com>,
        linux-kernel@...r.kernel.org
Cc:     netdev@...r.kernel.org, bpf@...r.kernel.org,
        linux-perf-users@...r.kernel.org,
        Stephane Eranian <eranian@...gle.com>,
        Ian Rogers <irogers@...gle.com>
Subject: [RFC PATCH v2 07/23] perf expr: debug lex if debugging yacc

Only effects parser debugging (disabled by default). Enables displaying
'--accepting rule at line .. ("...").

Signed-off-by: Ian Rogers <irogers@...gle.com>
---
 tools/perf/util/expr.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/tools/perf/util/expr.c b/tools/perf/util/expr.c
index aa631e37ad1e..8b4ce704a68d 100644
--- a/tools/perf/util/expr.c
+++ b/tools/perf/util/expr.c
@@ -45,6 +45,7 @@ __expr__parse(double *val, struct expr_parse_ctx *ctx, const char *expr,
 
 #ifdef PARSER_DEBUG
 	expr_debug = 1;
+	expr_set_debug(1, scanner);
 #endif
 
 	ret = expr_parse(val, ctx, scanner);
-- 
2.26.2.526.g744177e7f7-goog

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