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Diffstat (limited to 'tests/Makefile.common')
| -rw-r--r-- | tests/Makefile.common | 169 |
1 files changed, 169 insertions, 0 deletions
diff --git a/tests/Makefile.common b/tests/Makefile.common new file mode 100644 index 000000000000..03ae7c4aa0a6 --- /dev/null +++ b/tests/Makefile.common @@ -0,0 +1,169 @@ +# SPDX-License-Identifier: GPL-2.0-only + +# This file contains common definitions, macros and targets for depthcharge +# unit-tests and screenshot utility. It requires list of defined variables: +# - src - source directory +# - testobj - build directory of tests +# - objutil - utility programs/libraries output directory + +testsrc := $(top)/tests + +cmockasrc := 3rdparty/cmocka +cmockaobj := $(objutil)/cmocka +coverage_dir := coverage_reports + +CMOCKA_LIB := $(cmockaobj)/src/libcmocka.so + +CMAKE := cmake +OBJCOPY ?= objcopy +OBJDUMP ?= objdump + +TEST_DEFAULT_CONFIG := $(top)/configs/config.emulation_qemu_x86_i440fx +TEST_DOTCONFIG := $(testobj)/.config +TEST_KCONFIG_AUTOHEADER := $(testobj)/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_CFLAGS := -include $(src)/include/kconfig.h \ + -include $(src)/commonlib/bsd/include/commonlib/bsd/compiler.h \ + -include $(src)/include/rules.h + +# Include generic test mock headers, before original ones +TEST_CFLAGS += -I$(testsrc)/include/mocks -I$(testsrc)/include + +TEST_CFLAGS += -I$(src) -I$(src)/include -I$(src)/commonlib/include \ + -I$(src)/commonlib/bsd/include -I$(src)/arch/x86/include \ + -I$(top)/3rdparty/vboot/firmware/include + +# Note: This is intentionally just a subset of the warnings in the toplevel +# Makefile.inc. We don't need to be as strict with test code, and things like +# -Wmissing-prototypes just make working with the test framework cumbersome. +# Only put conservative warnings here that really detect code that's obviously +# unintentional. +TEST_CFLAGS += -Wall -Werror -Wundef -Wstrict-prototypes -Wno-inline-asm +TEST_CFLAGS += -Wno-unknown-warning-option -Wno-source-mgr -Wno-main-return-type + +# Path for Kconfig autoheader +TEST_CFLAGS += -I$(dir $(TEST_KCONFIG_AUTOHEADER)) + +TEST_CFLAGS += -std=gnu11 -Os -ffunction-sections -fdata-sections -fno-builtin + +TEST_CFLAGS += -D__TEST__ + +TEST_CFLAGS += -I$(cmockasrc)/include + +ifneq ($(filter-out 0,$(TEST_PRINT)),) +TEST_CFLAGS += -DTEST_PRINT=1 +endif + +# Link against Cmocka +TEST_LDFLAGS := -L$(cmockaobj)/src -lcmocka -Wl,-rpath=$(cmockaobj)/src +TEST_LDFLAGS += -Wl,--gc-sections + +# Some memlayout symbols don't work with userspace relocation -- disable it. +TEST_CFLAGS += -fno-pie -fno-pic +TEST_LDFLAGS += -no-pie + +# Extra attributes for unit tests, declared per test +attributes := srcs cflags config mocks stage + +# Copy attributes of one test to another. +# $1 - input test name +# $2 - output test name +copy-test = $(foreach attr,$(attributes), \ + $(eval $(strip $(2))-$(attr) := $($(strip $(1))-$(attr)))) + +# Create actual targets for unit test binaries +# $1 - test name +define TEST_CC_template + +# Generate custom config.h redefining given config symbols, and declaring mocked +# functions weak. It is important that the compiler already sees that they are +# weak (and they aren't just turned weak at a later stage) to prevent certain +# optimizations that would break if the function gets replaced. (For clang this +# file needs to be marked `system_header` to prevent it from warning about +# #pragma weak entries without a matching function declaration, since there's no +# -Wno-xxx command line option for that.) +$(1)-config-file := $(testobj)/$(1)/config.h +$$($(1)-config-file): $(TEST_KCONFIG_AUTOHEADER) + mkdir -p $$(dir $$@) + printf '// File generated by tests/Makefile.inc\n// Do not change\n' > $$@ + 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' >> $$@; + printf '#ifdef __TEST_SRCOBJ__\n' >> $$@; + for m in $$($(1)-mocks); do \ + printf '#pragma weak %s\n' "$$$$m" >> $$@; \ + done + printf '#endif\n' >> $$@; + +$($(1)-objs): TEST_CFLAGS += -I$$(dir $$($(1)-config-file)) \ + -D__$$(shell echo $$($(1)-stage) | tr '[:lower:]' '[:upper:]')__ \ + -D__TEST_NAME__=\"$(subst /,_,$(1))\" \ + -D__TEST_DATA_DIR__=\"$(testsrc)/data\" + +# Give us a way to distinguish between coreboot source files and test files in code. +$($(1)-srcobjs): TEST_CFLAGS += -D__TEST_SRCOBJ__ + +# Compile sources and apply mocking/wrapping of selected symbols. +# For each listed mock add new symbol with prefix `__real_`, +# and pointing to the same section:address. +$($(1)-objs): $(testobj)/$(1)/%.o: $$$$*.c $$($(1)-config-file) + mkdir -p $$(dir $$@) + $(HOSTCC) $(HOSTCFLAGS) $$(TEST_CFLAGS) $($(1)-cflags) -MMD \ + -MF $$(basename $$@).d -MT $$@ -c $$< -o $$@.orig + objcopy_wrap_flags=''; \ + for sym in $$($(1)-mocks); do \ + sym_line="$$$$($(OBJDUMP) -t $$@.orig \ + | grep -E "[0-9a-fA-F]+\\s+w\\s+F\\s+.*\\s$$$$sym$$$$")"; \ + if [ ! -z "$$$$sym_line" ] ; then \ + addr="$$$$(echo "$$$$sym_line" | awk '{ print $$$$1 }')"; \ + section="$$$$(echo "$$$$sym_line" | awk '{ print $$$$(NF - 2) }')"; \ + objcopy_wrap_flags="$$$$objcopy_wrap_flags --add-symbol __real_$$$${sym}=$$$${section}:0x$$$${addr},function,global"; \ + fi \ + done ; \ + $(OBJCOPY) $$@.orig $$$$objcopy_wrap_flags $$@ + +$($(1)-bin): $($(1)-objs) $(CMOCKA_LIB) + $(HOSTCC) $$^ $($(1)-cflags) $$(TEST_LDFLAGS) -o $$@ + +endef + +# 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) $(TEST_DOTCONFIG) + +# Don't override default Kconfig variables, since this will affect all +# Kconfig targets. Change them only when calling sub-make instead. +$(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) \ + KBUILD_DEFCONFIG=$(TEST_DEFAULT_CONFIG) + +$(TEST_KCONFIG_AUTOHEADER): $(TEST_DOTCONFIG) $(objutil)/kconfig/conf + mkdir -p $(dir $@) + $(MAKE) $(TEST_KCONFIG_FLAGS) olddefconfig + $(MAKE) $(TEST_KCONFIG_FLAGS) syncconfig + +$(TEST_KCONFIG_AUTOCONFIG): $(TEST_KCONFIG_AUTOHEADER) + true |