Messages in this thread Patch in this message | | | Date | Thu, 18 Jun 2020 21:33:53 -0700 | Subject | [PATCH v2 07/10] perf parse-events: Disable a subset of flex warnings | From | Ian Rogers <> |
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Rather than disable all warnings with -w, disable specific warnings. Predicate enabling the warnings on more recent flex versions. Tested with GCC 9.3.0 and clang 9.0.1.
Signed-off-by: Ian Rogers <irogers@google.com> --- tools/perf/util/Build | 12 +++++++++--- 1 file changed, 9 insertions(+), 3 deletions(-)
diff --git a/tools/perf/util/Build b/tools/perf/util/Build index 504a6bb991ba..53383bd6f4e2 100644 --- a/tools/perf/util/Build +++ b/tools/perf/util/Build @@ -221,9 +221,15 @@ $(OUTPUT)util/pmu-bison.c $(OUTPUT)util/pmu-bison.h: util/pmu.y $(Q)$(call echo-cmd,bison)$(BISON) -v $< -d $(PARSER_DEBUG_BISON) \ -o $(OUTPUT)util/pmu-bison.c -p perf_pmu_ -CFLAGS_parse-events-flex.o += -w -CFLAGS_pmu-flex.o += -w -CFLAGS_expr-flex.o += -w +FLEX_GE_264 := $(shell expr $(shell $(FLEX) --version | sed -e 's/flex \([0-9]\+\).\([0-9]\+\).\([0-9]\+\)/\1\2\3/g') \>\= 264) +ifeq ($(FLEX_GE_264),1) + flex_flags := -Wno-switch-enum -Wno-switch-default -Wno-unused-function -Wno-redundant-decls +else + flex_flags := -w +endif +CFLAGS_parse-events-flex.o += $(flex_flags) +CFLAGS_pmu-flex.o += $(flex_flags) +CFLAGS_expr-flex.o += $(flex_flags) CFLAGS_parse-events-bison.o += -DYYENABLE_NLS=0 -w CFLAGS_pmu-bison.o += -DYYENABLE_NLS=0 -DYYLTYPE_IS_TRIVIAL=0 -w CFLAGS_expr-bison.o += -DYYENABLE_NLS=0 -DYYLTYPE_IS_TRIVIAL=0 -w -- 2.27.0.111.gc72c7da667-goog
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