175 lines
6.5 KiB
Makefile
175 lines
6.5 KiB
Makefile
# SPDX-License-Identifier: GPL-2.0-only
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# This file contains common definitions, macros and targets for depthcharge
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# unit-tests and screenshot utility. It requires list of defined variables:
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# - src - source directory
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# - testobj - build directory of tests
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# - objutil - utility programs/libraries output directory
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testsrc := $(top)/tests
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cmockasrc := 3rdparty/cmocka
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cmockaobj := $(objutil)/cmocka
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coverage_dir := coverage_reports
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CMOCKA_LIB := $(cmockaobj)/src/libcmocka.so
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CMAKE := cmake
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OBJCOPY ?= objcopy
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OBJDUMP ?= objdump
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TEST_DEFAULT_CONFIG := $(top)/configs/config.emulation_qemu_x86_i440fx
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TEST_DOTCONFIG := $(testobj)/.config
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TEST_KCONFIG_AUTOHEADER := $(testobj)/config.src.h
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TEST_KCONFIG_AUTOCONFIG := $(testobj)/auto.conf
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TEST_KCONFIG_DEPENDENCIES := $(testobj)/auto.conf.cmd
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TEST_KCONFIG_SPLITCONFIG := $(testobj)/config/
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TEST_KCONFIG_TRISTATE := $(testobj)/tristate.conf
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# Include order should be same as in real build
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TEST_CFLAGS := -include $(src)/include/kconfig.h \
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-include $(src)/include/rules.h \
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-include $(src)/commonlib/bsd/include/commonlib/bsd/compiler.h
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# Include generic test mock headers, before original ones
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TEST_CFLAGS += -I$(testsrc)/include/mocks -I$(testsrc)/include
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TEST_CFLAGS += -I$(src) -I$(src)/include -I$(src)/commonlib/include \
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-I$(src)/commonlib/bsd/include -I$(src)/arch/x86/include \
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-I$(top)/3rdparty/vboot/firmware/include
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# Note: This is intentionally just a subset of the warnings in the toplevel
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# Makefile.inc. We don't need to be as strict with test code, and things like
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# -Wmissing-prototypes just make working with the test framework cumbersome.
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# Only put conservative warnings here that really detect code that's obviously
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# unintentional.
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TEST_CFLAGS += -Wall -Werror -Wundef -Wstrict-prototypes -Wno-inline-asm
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TEST_CFLAGS += -Wno-unknown-warning-option -Wno-source-mgr -Wno-main-return-type
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TEST_CFLAGS += -Wno-array-compare -Wno-packed-not-aligned -Wno-trigraphs
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TEST_CFLAGS += -Wno-unused-but-set-variables
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# Path for Kconfig autoheader
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TEST_CFLAGS += -I$(dir $(TEST_KCONFIG_AUTOHEADER))
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TEST_CFLAGS += -std=gnu11 -Os -ffunction-sections -fdata-sections -fno-builtin
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TEST_CFLAGS += -D__TEST__
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TEST_CFLAGS += -I$(cmockasrc)/include
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ifneq ($(filter-out 0,$(TEST_PRINT)),)
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TEST_CFLAGS += -DTEST_PRINT=1
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endif
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# Link against Cmocka
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TEST_LDFLAGS := -L$(cmockaobj)/src -lcmocka -Wl,-rpath=$(cmockaobj)/src
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TEST_LDFLAGS += -Wl,--gc-sections
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# Some memlayout symbols don't work with userspace relocation -- disable it.
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TEST_CFLAGS += -fno-pie -fno-pic
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TEST_LDFLAGS += -no-pie
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# Extra attributes for unit tests, declared per test
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attributes := srcs cflags config mocks stage
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# Copy attributes of one test to another.
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# $1 - input test name
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# $2 - output test name
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copy-test = $(foreach attr,$(attributes), \
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$(eval $(strip $(2))-$(attr) := $($(strip $(1))-$(attr))))
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# Create actual targets for unit test binaries
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# $1 - test name
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define TEST_CC_template
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# Generate custom config.h redefining given config symbols, and declaring mocked
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# functions weak. It is important that the compiler already sees that they are
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# weak (and they aren't just turned weak at a later stage) to prevent certain
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# optimizations that would break if the function gets replaced. (For clang this
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# file needs to be marked `system_header` to prevent it from warning about
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# #pragma weak entries without a matching function declaration, since there's no
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# -Wno-xxx command line option for that.)
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$(1)-config-file := $(testobj)/$(1)/config.h
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$$($(1)-config-file): $(TEST_KCONFIG_AUTOHEADER)
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mkdir -p $$(dir $$@)
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printf '// File generated by tests/Makefile.inc\n// Do not change\n' > $$@
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printf '#include <%s>\n\n' "$(notdir $(TEST_KCONFIG_AUTOHEADER))" >> $$@
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for kv in $$($(1)-config); do \
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key="`echo $$$$kv | cut -d '=' -f -1`"; \
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value="`echo $$$$kv | cut -d '=' -f 2-`"; \
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printf '#undef %s\n' "$$$$key" >> $$@; \
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printf '#define %s %s\n\n' "$$$$key" "$$$$value" >> $$@; \
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done
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printf '#ifdef __clang__\n' >> $$@;
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printf '#pragma clang system_header\n' >> $$@;
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printf '#endif\n' >> $$@;
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printf '#ifdef __TEST_SRCOBJ__\n' >> $$@;
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for m in $$($(1)-mocks); do \
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printf '#pragma weak %s\n' "$$$$m" >> $$@; \
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done
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printf '#endif\n' >> $$@;
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$($(1)-objs): TEST_CFLAGS += -I$$(dir $$($(1)-config-file)) \
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-D__$$(shell echo $$($(1)-stage) | tr '[:lower:]' '[:upper:]')__ \
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-D__TEST_NAME__=\"$(subst /,_,$(1))\" \
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-D__TEST_DATA_DIR__=\"$(testsrc)/data\"
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# Give us a way to distinguish between coreboot source files and test files in code.
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$($(1)-srcobjs): TEST_CFLAGS += -D__TEST_SRCOBJ__
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# Compile sources and apply mocking/wrapping of selected symbols.
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# For each listed mock add new symbol with prefix `__real_`,
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# and pointing to the same section:address.
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$($(1)-objs): $(testobj)/$(1)/%.o: $$$$*.c $$($(1)-config-file)
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mkdir -p $$(dir $$@)
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$(HOSTCC) $(HOSTCFLAGS) $$(TEST_CFLAGS) $($(1)-cflags) -MMD \
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-MF $$(basename $$@).d -MT $$@ -c $$< -o $$@.orig
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objcopy_wrap_flags=''; \
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for sym in $$($(1)-mocks); do \
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sym_line="$$$$($(OBJDUMP) -t $$@.orig \
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| grep -E "[0-9a-fA-F]+\\s+w\\s+F\\s+.*\\s$$$$sym$$$$")"; \
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if [ ! -z "$$$$sym_line" ] ; then \
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addr="$$$$(echo "$$$$sym_line" | awk '{ print $$$$1 }')"; \
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section="$$$$(echo "$$$$sym_line" | awk '{ print $$$$(NF - 2) }')"; \
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objcopy_wrap_flags="$$$$objcopy_wrap_flags --add-symbol __real_$$$${sym}=$$$${section}:0x$$$${addr},function,global"; \
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fi \
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done ; \
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$(OBJCOPY) $$@.orig $$$$objcopy_wrap_flags $$@
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$($(1)-bin): $($(1)-objs) $(CMOCKA_LIB)
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$(HOSTCC) $$^ $($(1)-cflags) $$(TEST_LDFLAGS) -o $$@
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endef
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# Build cmocka
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$(CMOCKA_LIB):
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echo "*** Building CMOCKA ***"
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mkdir -p $(cmockaobj)
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cd $(cmockaobj) && $(CMAKE) $(abspath $(cmockasrc))
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$(MAKE) -C $(cmockaobj)
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# Kconfig targets
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$(TEST_DOTCONFIG):
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mkdir -p $(dir $@)
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cp $(TEST_DEFAULT_CONFIG) $(TEST_DOTCONFIG)
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# Don't override default Kconfig variables, since this will affect all
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# Kconfig targets. Change them only when calling sub-make instead.
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$(TEST_KCONFIG_AUTOHEADER): TEST_KCONFIG_FLAGS := DOTCONFIG=$(TEST_DOTCONFIG) \
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KCONFIG_AUTOHEADER=$(TEST_KCONFIG_AUTOHEADER) \
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KCONFIG_AUTOCONFIG=$(TEST_KCONFIG_AUTOCONFIG) \
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KCONFIG_DEPENDENCIES=$(TEST_KCONFIG_DEPENDENCIES) \
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KCONFIG_SPLITCONFIG=$(TEST_KCONFIG_SPLITCONFIG) \
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KCONFIG_TRISTATE=$(TEST_KCONFIG_TRISTATE) \
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KBUILD_DEFCONFIG=$(TEST_DEFAULT_CONFIG)
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$(TEST_KCONFIG_AUTOHEADER): $(TEST_DOTCONFIG) $(objutil)/kconfig/conf
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mkdir -p $(dir $@)
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$(MAKE) $(TEST_KCONFIG_FLAGS) olddefconfig
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$(MAKE) $(TEST_KCONFIG_FLAGS) syncconfig
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$(TEST_KCONFIG_AUTOCONFIG): $(TEST_KCONFIG_AUTOHEADER)
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true
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TEST_COMMON_DEPENDENCIES := $(CMOCKA_LIB) $(TEST_KCONFIG_AUTOCONFIG)
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