linux-kernel - [PATCH 04/10] perf pmu: Add flex debug build flag

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Date:   Wed, 10 Jun 2020 14:50:54 -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>,
        Andi Kleen <ak@...ux.intel.com>,
        Jin Yao <yao.jin@...ux.intel.com>,
        John Garry <john.garry@...wei.com>,
        Adrian Hunter <adrian.hunter@...el.com>,
        linux-kernel@...r.kernel.org
Cc:     Stephane Eranian <eranian@...gle.com>,
        Ian Rogers <irogers@...gle.com>
Subject: [PATCH 04/10] perf pmu: Add flex debug build flag

Allow pmu parser's flex to be debugged as the parse-events and
expr currently are. Enabling this requires the C code to call
perf_pmu__flex_debug.

Signed-off-by: Ian Rogers <irogers@...gle.com>
---
 tools/perf/util/Build | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/perf/util/Build b/tools/perf/util/Build
index 3ae4adc8e966..e63bfc46d50f 100644
--- a/tools/perf/util/Build
+++ b/tools/perf/util/Build
@@ -209,7 +209,7 @@ $(OUTPUT)util/expr-bison.c: util/expr.y
 
 $(OUTPUT)util/pmu-flex.c: util/pmu.l $(OUTPUT)util/pmu-bison.c
 	$(call rule_mkdir)
-	$(Q)$(call echo-cmd,flex)$(FLEX) -o $@ --header-file=$(OUTPUT)util/pmu-flex.h $<
+	$(Q)$(call echo-cmd,flex)$(FLEX) -o $@ --header-file=$(OUTPUT)util/pmu-flex.h $(PARSER_DEBUG_FLEX) $<
 
 $(OUTPUT)util/pmu-bison.c: util/pmu.y
 	$(call rule_mkdir)
-- 
2.27.0.278.ge193c7cf3a9-goog