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cppcheck: Use "exhaustive" level checking when available

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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@gibson.dropbear.id.au>
Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
This commit is contained in:
David Gibson 2023-09-29 15:50:21 +10:00 committed by Stefano Brivio
parent c0efa4e97f
commit 8640d62af7
1 changed files with 6 additions and 0 deletions
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6
Makefile
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@ -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=*:%/*) \