Recent enough cppcheck versions (at least as of cppcheck 2.12) give this
error processing conf.c:
conf.c:1179:1: information: ValueFlow analysis is limited in conf. Use
--check-level=exhaustive if full analysis is wanted. [checkLevelNormal]
Adding --check-level=exhaustive doesn't seem to significantly increase the
cppcheck run time for us, so enable it when possible, suppressing that
warning.
Signed-off-by: David Gibson <david(a)gibson.dropbear.id.au>
---
Makefile | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/Makefile b/Makefile
index af3bc75..941086a 100644
--- a/Makefile
+++ b/Makefile
@@ -278,6 +278,11 @@ clang-tidy: $(SRCS) $(HEADERS)
-config='{CheckOptions: [{key:
bugprone-suspicious-string-compare.WarnOnImplicitComparison, value:
"false"}]}' \
--warnings-as-errors=* $(SRCS) -- $(filter-out -pie,$(FLAGS) $(CFLAGS) $(CPPFLAGS))
-DCLANG_TIDY_58992
+CPPCHECK_EXHAUSTIVE :=
+ifeq ($(shell cppcheck --check-level=exhaustive /dev/null > /dev/null 2>&1;
echo $$?),0)
+ CPPCHECK_EXHAUSTIVE += --check-level=exhaustive
+endif
+
SYSTEM_INCLUDES := /usr/include $(wildcard /usr/include/$(TARGET))
ifeq ($(shell $(CC) -v 2>&1 | grep -c "gcc version"),1)
VER := $(shell $(CC) -dumpversion)
@@ -286,6 +291,7 @@ endif
cppcheck: $(SRCS) $(HEADERS)
cppcheck --std=c11 --error-exitcode=1 --enable=all --force \
--inconclusive --library=posix --quiet \
+ $(CPPCHECK_EXHAUSTIVE) \
$(SYSTEM_INCLUDES:%=-I%) \
$(SYSTEM_INCLUDES:%=--config-exclude=%) \
$(SYSTEM_INCLUDES:%=--suppress=*:%/*) \
--
2.41.0