# 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 TEST_CFLAGS += -include $(coreboottop)/src/commonlib/bsd/include/commonlib/bsd/compiler.h TEST_CFLAGS += -Iinclude -Iinclude/mock TEST_CFLAGS += -I$(coreboottop)/src/commonlib/bsd/include TEST_CFLAGS += -I$(coreboottop)/src/commonlib/include TEST_CFLAGS += -I$(dir $(TEST_KCONFIG_AUTOHEADER)) TEST_CFLAGS += -I$(VBOOT_SOURCE)/firmware/include # 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 -ffunction-sections -fdata-sections -fno-builtin ifneq ($(filter-out 0,$(DEBUG)),) TEST_CFLAGS += -Og -ggdb3 else TEST_CFLAGS += -Os endif # 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 $$@); printf '// File generated by tests/Makefile.mk\n// Do not change\n' > $$@; 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)) $(addprefix try-,$(alltests)) .PHONY: $(addprefix build-,$(alltests)) $(addprefix run-,$(alltests)) .PHONY: unit-tests build-unit-tests run-unit-tests clean-unit-tests .PHONY: junit.xml-unit-tests clean-junit.xml-unit-tests ifeq ($(JUNIT_OUTPUT),y) $(addprefix run-,$(alltests)): export CMOCKA_MESSAGE_OUTPUT=xml $(addprefix run-,$(alltests)): export CMOCKA_XML_FILE=$(testobj)/junit-libpayload-%g.xml endif $(addprefix run-,$(alltests)): run-%: $$(%-bin) rm -f $(testobj)/junit-libpayload-$(subst /,_,$(patsubst $(testobj)/%/,%,$(dir $^)))\(*\).xml rm -f $(testobj)/$(subst /,_,$^).failed -$^ || echo failed > $(testobj)/$(subst /,_,$^).failed $(addprefix build-,$(alltests)): build-%: $$(%-bin) $(alltests): run-$$(@) $(addprefix try-,$(alltests)): try-%: clean-% $(CMOCKA_LIB) $(TEST_KCONFIG_AUTOCONFIG) mkdir -p $(testobj)/$* echo "" >> $(testobj)/$*.tmp; \ $(MAKE) V=$(V) Q=$(Q) COV=$(COV) JUNIT_OUTPUT=y "build-$*" >> $(testobj)/$*.tmp.2 2>&1 \ && type="system-out" || type="failure"; \ if [ $$type = "failure" ]; then \ echo "" >> $(testobj)/$*.tmp; \ else \ echo "<$$type>" >> $(testobj)/$*.tmp; \ fi; \ echo '> $(testobj)/$*.tmp; \ cat $(testobj)/$*.tmp.2 >> $(testobj)/$*.tmp; \ echo "]]>" >> $(testobj)/$*.tmp; \ rm -f $(testobj)/$*.tmp.2; \ echo "" >> $(testobj)/$*.tmp; \ if [ $$type != 'failure' ]; then \ $(MAKE) V=$(V) Q=$(Q) COV=$(COV) JUNIT_OUTPUT=y "run-$*"; \ fi TESTS_BUILD_XML_FILE := $(testobj)/junit-libpayload-tests-build.xml $(TESTS_BUILD_XML_FILE): clean-junit.xml-unit-tests $(addprefix try-,$(alltests)) mkdir -p $(dir $@) echo '' > $@ for tst in $(alltests); do \ cat $(testobj)/$$tst.tmp >> $@; \ done echo "" >> $@ junit.xml-unit-tests: $(TESTS_BUILD_XML_FILE) clean-junit.xml-unit-tests: rm -f $(TESTS_BUILD_XML_FILE) # Build a code coverage report by collecting all the gcov files into a single # report. If COV is not set, this might be a user error, and they're trying # to generate a coverage report without first having built and run the code # with code coverage. absence of COV=1 will be corrected. .PHONY: coverage-report clean-coverage-report ifeq ($(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 ' - Build and run single unit-test' @echo ' clean- - Remove single unit-test build artifacts' @echo ' coverage-report - Generate a code coverage report' @echo ' clean-coverage-report - Remove the code coverage report' @echo