GNUBoot/coreboot-kgpe-d16
2
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity
coreboot-kgpe-d16/payloads/libpayload/tests/Makefile.inc
Julius Werner c90d406008 tests: Disable -Wmain-return-type for clang 
Unit tests fail on clang 13.0 because Cmocka's main() function is
declared with return type int, but through some of our chain-include
games it sometimes gets coreboot's main_decl.h which declares the
function as void. Compilers have traditionally always been very
laissez-faire about the signature of the main function, but it seems
that clang has been getting more strict by default recently. Explicitly
disable the related warning to shut it up.

Signed-off-by: Julius Werner <jwerner@chromium.org>
Change-Id: I867c9dac659be86e7b7cf4cc41d6fa105aa9ac41
Reviewed-on: https://review.coreboot.org/c/coreboot/+/59815
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Jakub Czapiga <jacz@semihalf.com>
2021-12-07 17:47:35 +00:00

277 lines
9.4 KiB
Makefile
Raw Blame History

# SPDX-License-Identifier: GPL-2.0-only
testsrc := $(top)/tests
# Place the build output in one of two places depending on COV, so that code
# built with code coverage never mixes with code built without code coverage.
ifeq ($(COV),1)
testobj := $(obj)/coverage
else
testobj := $(obj)/tests
endif
coverage-dir := $(testobj)/coverage_reports
cmockasrc := $(coreboottop)/3rdparty/cmocka
cmockaobj := $(objutil)/cmocka
CMOCKA_LIB := $(cmockaobj)/src/libcmocka.so
CMAKE := cmake
TEST_DEFAULT_CONFIG := $(top)/configs/config.unit-tests
TEST_DOTCONFIG := $(testobj)/.config
TEST_KCONFIG_AUTOHEADER := $(testobj)/libpayload-config.src.h
TEST_KCONFIG_AUTOCONFIG := $(testobj)/auto.conf
TEST_KCONFIG_DEPENDENCIES := $(testobj)/auto.conf.cmd
TEST_KCONFIG_SPLITCONFIG := $(testobj)/config/
TEST_KCONFIG_TRISTATE := $(testobj)/tristate.conf
TEST_KCONFIG_NEGATIVES := 1
TEST_KBUILD_KCONFIG := $(top)/Kconfig
TEST_CONFIG_ := CONFIG_LP_
# Default includes
TEST_CFLAGS := -include include/kconfig.h -include include/compiler.h
TEST_CFLAGS += -Iinclude -Iinclude/mock
TEST_CFLAGS += -I$(coreboottop)/src/commonlib/bsd/include
TEST_CFLAGS += -I$(dir $(TEST_KCONFIG_AUTOHEADER))
# Test specific includes
TEST_CFLAGS += -I$(testsrc)/include
TEST_CFLAGS += -I$(cmockasrc)/include
# Minimal subset of warnings and errors. Tests can be less strict than actual build.
TEST_CFLAGS += -Wall -Wundef -Wstrict-prototypes -Wvla
TEST_CFLAGS += -Wwrite-strings -Wno-trigraphs -Wimplicit-fallthrough
TEST_CFLAGS += -Wstrict-aliasing -Wshadow -Werror
TEST_CFLAGS += -Wno-unknown-warning-option -Wno-source-mgr -Wno-main-return-type
TEST_CFLAGS += -std=gnu11 -Os -ffunction-sections -fdata-sections -fno-builtin
# Make unit-tests detectable by the code
TEST_CFLAGS += -D__TEST__
# Link against CMocka
TEST_LDFLAGS := -L$(dir $(CMOCKA_LIB)) -lcmocka -Wl,-rpath=$(dir $(CMOCKA_LIB))
TEST_LDFLAGS += -Wl,--gc-sections
# Disable userspace relocations
TEST_CFLAGS += -fno-pie -fno-pic
TEST_LDFLAGS += -no-pie
ifeq ($(COV),1)
TEST_CFLAGS += --coverage
TEST_LDFLAGS += --coverage
endif
# Extra attributes for unit tests. Declated per each test. Only `srcs` is required.
attributes := cflags config mocks srcs
alltests :=
subdirs := tests/crypto tests/curses tests/drivers tests/gdb tests/libc tests/libcbfs
subdirs += tests/liblz4 tests/liblzma tests/libpci
define tests-handler
alltests += $(1)$(2)
$(foreach attribute,$(attributes), \
$(eval $(1)$(2)-$(attribute) += $($(2)-$(attribute))))
$(foreach attribute,$(attributes), \
$(eval $(2)-$(attribute) := ))
endef
# Copy attributes of one test to another
# $1 - input test name
# $2 - output test name
copy-test = $(foreach attribute,$(attributes), \
$(eval $(strip $(2))-$(attribute) := $($(strip $(1))-$(attribute))))
$(call add-special-class,tests)
$(call evaluate_subdirs)
# Create actual targets for unit test binaries
# $1 - test name
define TEST_CC_template
# Generate custom config.h redefining given config symbols, and declaring mocked
# functions weak. It is important that the compiler already sees that they are
# weak (and they aren't just turned weak at a later stage) to prevent certain
# optimizations that would break if the function gets replaced. (For clang this
# file needs to be marked `system_header` to prevent it from warning about
# `#pragma weak` entries without a matching function declaration, since there is
# no -Wno-xxx commandline for that.)
$(1)-config-file := $(testobj)/$(1)/libpayload-config.h
$$($(1)-config-file): $(TEST_KCONFIG_AUTOHEADER)
mkdir -p $$(dir $$@);
printf '// File generated by tests/Makefile.inc\n// Do not change\n' > $$@;
printf '#ifndef TEST_LIBPAYLOAD_CONFIG_H_\n' >> $$@;
printf '#define TEST_LIBPAYLOAD_CONFIG_H_\n' >> $$@;
printf '#include <%s>\n\n' "$(notdir $(TEST_KCONFIG_AUTOHEADER))" >> $$@;
for kv in $$($(1)-config); do \
key="`echo $$$$kv | cut -d '=' -f -1`"; \
value="`echo $$$$kv | cut -d '=' -f 2-`"; \
printf '#undef %s\n' "$$$$key" >> $$@; \
printf '#define %s %s\n\n' "$$$$key" "$$$$value" >> $$@; \
done
printf '#ifdef __clang__\n' >> $$@;
printf '#pragma clang system_header\n' >> $$@;
printf '#endif\n\n' >> $$@;
printf '#ifdef __TEST_SRCOBJ__\n' >> $$@;
for m in $$($(1)-mocks); do \
printf '#pragma weak %s\n' "$$$$m" >> $$@; \
done
printf '#endif\n\n' >> $$@;
printf '#endif\n' >> $$@;
$($(1)-objs): TEST_CFLAGS += -I$$(dir $$($(1)-config-file)) \
-D__TEST_NAME__=\"$(subst /,_,$(1))\"
# Give us a way to distinguish between libpayload source files and test files in the code.
$($(1)-srcobjs): TEST_CFLAGS += -D__TEST_SRCOBJ__
# Compile sources and apply mocking/wrapping for selected symbols.
# For each listed mock add new symbol with prefix `__real_`,
# pointing to the same section:address. This will keep original
# function accessible if required.
$($(1)-objs): $(testobj)/$(1)/%.o: $$$$*.c $$($(1)-config-file)
mkdir -p $$(dir $$@)
$(HOSTCC) $$(TEST_CFLAGS) $($(1)-cflags) -MMD \
-MF $$(basename $$@).d -MT $$@ -c $$< -o $$@.orig
objcopy_wrap_flags=''; \
for sym in $$($(1)-mocks); do \
sym_line="$$$$($(HOSTOBJDUMP) -t $$@.orig \
| grep -E "[0-9a-fA-F]+\\s+w\\s+F\\s+.*\\s+$$$$sym$$$$")"; \
if [ ! -z "$$$$sym_line" ] ; then \
addr="$$$$(echo "$$$$sym_line" | awk '{ print $$$$1 }')"; \
section="$$$$(echo "$$$$sym_line" | awk '{ print $$$$(NF - 2) }')"; \
objcopy_wrap_flags="$$$$objcopy_wrap_flags --add-symbol __real_$$$${sym}=$$$${section}:0x$$$${addr},function,global"; \
fi \
done ; \
$(HOSTOBJCOPY) $$@.orig $$$$objcopy_wrap_flags $$@
$($(1)-bin): $($(1)-objs) $(CMOCKA_LIB)
$(HOSTCC) $$^ $($(1)-cflags) $$(TEST_LDFLAGS) -o $$@
endef
$(foreach test,$(alltests), \
$(eval $(test)-srcobjs := $(addprefix $(testobj)/$(test)/, \
$(patsubst %.c,%.o,$(filter-out tests/%,$($(test)-srcs))))) \
$(eval $(test)-objs := $(addprefix $(testobj)/$(test)/, \
$(patsubst %.c,%.o,$($(test)-srcs)))) \
$(eval $(test)-bin := $(testobj)/$(test)/run))
$(foreach test,$(alltests), \
$(eval $(call TEST_CC_template,$(test))))
$(foreach test,$(alltests), \
$(eval all-test-objs += $($(test)-objs)) \
$(eval test-bins += $($(test)-bin)))
DEPENDENCIES += $(addsuffix .d,$(basename $(all-test-objs)))
-include $(DEPENDENCIES)
# Build CMocka
$(CMOCKA_LIB):
echo "*** Building CMOCKA ***"
mkdir -p $(cmockaobj)
cd $(cmockaobj) && $(CMAKE) $(abspath $(cmockasrc))
$(MAKE) -C $(cmockaobj)
# Kconfig targets
$(TEST_DOTCONFIG):
mkdir -p $(dir $@)
cp $(TEST_DEFAULT_CONFIG) $(TEST_DOTCONFIG)
$(TEST_KCONFIG_AUTOHEADER): TEST_KCONFIG_FLAGS := DOTCONFIG=$(TEST_DOTCONFIG) \
KCONFIG_AUTOHEADER=$(TEST_KCONFIG_AUTOHEADER) \
KCONFIG_AUTOCONFIG=$(TEST_KCONFIG_AUTOCONFIG) \
KCONFIG_DEPENDENCIES=$(TEST_KCONFIG_DEPENDENCIES) \
KCONFIG_SPLITCONFIG=$(TEST_KCONFIG_SPLITCONFIG) \
KCONFIG_TRISTATE=$(TEST_KCONFIG_TRISTATE) \
KCONFIG_NEGATIVES=$(TEST_KCONFIG_NEGATIVES) \
KBUILD_KCONFIG=$(TEST_KBUILD_KCONFIG) \
KBUILD_DEFCONFIG=$(TEST_DEFAULT_CONFIG) \
CONFIG_=$(TEST_CONFIG_)
$(TEST_KCONFIG_AUTOHEADER): $(TEST_DOTCONFIG) $(objk)/conf
mkdir -p $(dir $@)
$(MAKE) $(TEST_KCONFIG_FLAGS) olddefconfig V=$(V)
$(MAKE) $(TEST_KCONFIG_FLAGS) syncconfig V=$(V)
$(TEST_KCONFIG_AUTOCONFIG): $(TEST_KCONFIG_AUTOHEADER)
true
.PHONY: $(alltests) $(addprefix clean-,$(alltests))
.PHONY: unit-tests build-unit-tests run-unit-tests clean-unit-tests
ifeq ($(JUNIT_OUTPUT),y)
$(alltests): export CMOCKA_MESSAGE_OUTPUT=xml
$(alltests): export CMOCKA_XML_FILE=$(testobj)/junit-%g.xml
endif
$(alltests): $$($$(@)-bin)
rm -f $(testobj)/junit-libpayload-$(subst /,_,$(patsubst $(testobj)/%/,%,$(dir $^)))\(*\).xml
rm -f $(testobj)/$(subst /,_,$^).failed
-$^ || echo failed > $(testobj)/$(subst /,_,$^).failed
# Build a code coverage report by collecting all the gcov files into a single
# report. If COV is not set, this might be a user error, and they're trying
# to generate a coverage report without first having built and run the code
# with code coverage. absence of COV=1 will be corrected.
.PHONY: coverage-report clean-coverage-report
ifeq ($(COV),1)
coverage-report:
lcov -o $(testobj)/tests.info -c -d $(testobj) --exclude '$(testsrc)/*'
genhtml -q -o $(coverage-dir) -t "coreboot unit tests" -s $(testobj)/tests.info
clean-coverage-report:
rm -Rf $(coverage-dir)
else
coverage-report:
COV=1 V=$(V) $(MAKE) coverage-report
clean-coverage-report:
COV=1 V=$(V) $(MAKE) clean-coverage-report
endif
unit-tests: build-unit-tests run-unit-tests
build-unit-tests: $(test-bins)
run-unit-tests: $(alltests)
if [ `find $(testobj) -name '*.failed' | wc -l` -gt 0 ]; then \
echo "**********************"; \
echo " TESTS FAILED"; \
echo "**********************"; \
exit 1; \
else \
echo "**********************"; \
echo " ALL TESTS PASSED"; \
echo "**********************"; \
exit 0; \
fi
$(addprefix clean-,$(alltests)): clean-%
rm -rf $(testobj)/$*
clean-unit-tests:
rm -rf $(testobj)
list-unit-tests:
@echo "unit-tests:"
for t in $(sort $(alltests)); do \
echo " $$t"; \
done
help-unit-tests help::
@echo '*** libpayload unit-tests targets ***'
@echo ' Use "COV=1 make [target]" to enable code coverage for unit tests'
@echo ' unit-tests - Run all unit-tests from tests/'
@echo ' clean-unit-tests - Remove unit-tests build artifacts'
@echo ' list-unit-tests - List all unit-tests'
@echo ' <unit-test> - Build and run single unit-test'
@echo ' clean-<unit-test> - Remove single unit-test build artifacts'
@echo ' coverage-report - Generate a code coverage report'
@echo ' clean-coverage-report - Remove the code coverage report'
@echo
Reference in a new issue View git blame Copy permalink