Add shellcheck to generate-cmdlist.sh to avoid basic shell script
mistakes.

Signed-off-by: Ian Rogers <irogers@google.com>
---
 tools/perf/util/Build | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/tools/perf/util/Build b/tools/perf/util/Build
index aec5a590e349..292170a99ab6 100644
--- a/tools/perf/util/Build
+++ b/tools/perf/util/Build
@@ -389,3 +389,17 @@ $(OUTPUT)util/vsprintf.o: ../lib/vsprintf.c FORCE
 $(OUTPUT)util/list_sort.o: ../lib/list_sort.c FORCE
 	$(call rule_mkdir)
 	$(call if_changed_dep,cc_o_c)
+
+ifdef SHELLCHECK
+  SHELL_TESTS := generate-cmdlist.sh
+  TEST_LOGS := $(SHELL_TESTS:%=%.shellcheck_log)
+else
+  SHELL_TESTS :=
+  TEST_LOGS :=
+endif
+
+$(OUTPUT)%.shellcheck_log: %
+	$(call rule_mkdir)
+	$(Q)$(call echo-cmd,test)shellcheck -a -S warning "$<" > $@ || (cat $@ && rm $@ && false)
+
+perf-y += $(TEST_LOGS)
-- 
2.44.0.478.gd926399ef9-goog