perf pmu: Add YYDEBUG

YYDEBUG enables line numbers and other error helpers in the generated
pmu-bison.c. Conditionally enabled only for debug builds.

Signed-off-by: Ian Rogers <irogers@google.com>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Gaosheng Cui <cuigaosheng1@huawei.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Rob Herring <robh@kernel.org>
Cc: bpf@vger.kernel.org
Link: https://lore.kernel.org/r/20230911170559.4037734-4-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

diff --git a/tools/perf/util/pmu.y b/tools/perf/util/pmu.y
index 600c8c158c8eee7003a41e77801c9603057e40b2..198907a8a48a61fef1386a2a90fa5afcfc8a2d6f 100644 (file)
--- a/tools/perf/util/pmu.y
+++ b/tools/perf/util/pmu.y
@@ -5,6 +5,10 @@
 
 %{
 
+#ifndef NDEBUG
+#define YYDEBUG 1
+#endif
+
 #include <linux/compiler.h>
 #include <linux/list.h>
 #include <linux/bitmap.h>