# This mimics the top-level Makefile. We do it explicitly here so that this# Makefile can operate with or without the kbuild infrastructure.CC := $(CROSS_COMPILE)gcc ifeq (0,$(MAKELEVEL))    ifeq ($(OUTPUT),)	OUTPUT := $(shell pwd)	DEFAULT_INSTALL_HDR_PATH := 1    endifendifselfdir = $(realpath $(dir $(filter %/lib.mk,$(MAKEFILE_LIST)))) # The following are built by lib.mk common compile rules.# TEST_CUSTOM_PROGS should be used by tests that require# custom build rule and prevent common build rule use.# TEST_PROGS are for test shell scripts.# TEST_CUSTOM_PROGS and TEST_PROGS will be run by common run_tests# and install targets. Common clean doesn't touch them.TEST_GEN_PROGS := $(patsubst %,$(OUTPUT)/%,$(TEST_GEN_PROGS))TEST_GEN_PROGS_EXTENDED := $(patsubst %,$(OUTPUT)/%,$(TEST_GEN_PROGS_EXTENDED))TEST_GEN_FILES := $(patsubst %,$(OUTPUT)/%,$(TEST_GEN_FILES)) ifdef KSFT_KHDR_INSTALLtop_srcdir ?= ../../../..include $(top_srcdir)/scripts/subarch.includeARCH		?= $(SUBARCH) # set default goal to all, so make without a target runs all, even when# all isn't the first target in the file..DEFAULT_GOAL := all # Invoke headers install with --no-builtin-rules to avoid circular# dependency in "make kselftest" case. In this case, second level# make inherits builtin-rules which will use the rule generate# Makefile.o and runs into# "Circular Makefile.o <- prepare dependency dropped."# and headers_install fails and test compile fails.# O= KBUILD_OUTPUT cases don't run into this error, since main Makefile# invokes them as sub-makes and --no-builtin-rules is not necessary,# but doesn't cause any failures. Keep it simple and use the same# flags in both cases.# Note that the support to install headers from lib.mk is necessary# when test Makefile is run directly with "make -C".# When local build is done, headers are installed in the default# INSTALL_HDR_PATH usr/include..PHONY: khdrkhdr:ifndef KSFT_KHDR_INSTALL_DONEifeq (1,$(DEFAULT_INSTALL_HDR_PATH))	make --no-builtin-rules ARCH=$(ARCH) -C $(top_srcdir) headers_installelse	make --no-builtin-rules INSTALL_HDR_PATH=$$OUTPUT/usr \		ARCH=$(ARCH) -C $(top_srcdir) headers_installendifendif all: khdr $(TEST_GEN_PROGS) $(TEST_GEN_PROGS_EXTENDED) $(TEST_GEN_FILES)elseall: $(TEST_GEN_PROGS) $(TEST_GEN_PROGS_EXTENDED) $(TEST_GEN_FILES)endif define RUN_TESTS	BASE_DIR="$(selfdir)";			\	. $(selfdir)/kselftest/runner.sh;	\	if [ "X$(summary)" != "X" ]; then       \		per_test_logging=1;		\	fi;                                     \	run_many $(1)endef run_tests: allifdef building_out_of_srctree	@if [ "X$(TEST_PROGS)$(TEST_PROGS_EXTENDED)$(TEST_FILES)" != "X" ]; then \		rsync -aq $(TEST_PROGS) $(TEST_PROGS_EXTENDED) $(TEST_FILES) $(OUTPUT); \	fi	@if [ "X$(TEST_PROGS)" != "X" ]; then \		$(call RUN_TESTS, $(TEST_GEN_PROGS) $(TEST_CUSTOM_PROGS) $(OUTPUT)/$(TEST_PROGS)) ; \	else \		$(call RUN_TESTS, $(TEST_GEN_PROGS) $(TEST_CUSTOM_PROGS)); \	fielse	@$(call RUN_TESTS, $(TEST_GEN_PROGS) $(TEST_CUSTOM_PROGS) $(TEST_PROGS))endif define INSTALL_SINGLE_RULE	$(if $(INSTALL_LIST),@mkdir -p $(INSTALL_PATH))	$(if $(INSTALL_LIST),rsync -a $(INSTALL_LIST) $(INSTALL_PATH)/)endef define INSTALL_RULE	$(eval INSTALL_LIST = $(TEST_PROGS)) $(INSTALL_SINGLE_RULE)	$(eval INSTALL_LIST = $(TEST_PROGS_EXTENDED)) $(INSTALL_SINGLE_RULE)	$(eval INSTALL_LIST = $(TEST_FILES)) $(INSTALL_SINGLE_RULE)	$(eval INSTALL_LIST = $(TEST_GEN_PROGS)) $(INSTALL_SINGLE_RULE)	$(eval INSTALL_LIST = $(TEST_CUSTOM_PROGS)) $(INSTALL_SINGLE_RULE)	$(eval INSTALL_LIST = $(TEST_GEN_PROGS_EXTENDED)) $(INSTALL_SINGLE_RULE)	$(eval INSTALL_LIST = $(TEST_GEN_FILES)) $(INSTALL_SINGLE_RULE)endef install: allifdef INSTALL_PATH	$(INSTALL_RULE)else	$(error Error: set INSTALL_PATH to use install)endif emit_tests:	for TEST in $(TEST_GEN_PROGS) $(TEST_CUSTOM_PROGS) $(TEST_PROGS); do \		BASENAME_TEST=`basename $$TEST`;	\		echo "	\\";				\		echo -n "	\"$$BASENAME_TEST\"";	\	done;						\ # define if isn't already. It is undefined in make O= case.ifeq ($(RM),)RM := rm -fendif define CLEAN	$(RM) -r $(TEST_GEN_PROGS) $(TEST_GEN_PROGS_EXTENDED) $(TEST_GEN_FILES) $(EXTRA_CLEAN)endef clean:	$(CLEAN) # When make O= with kselftest target from main level# the following aren't defined.#ifdef building_out_of_srctreeLINK.c = $(CC) $(CFLAGS) $(CPPFLAGS) $(LDFLAGS) $(TARGET_ARCH)COMPILE.S = $(CC) $(ASFLAGS) $(CPPFLAGS) $(TARGET_ARCH) -cLINK.S = $(CC) $(ASFLAGS) $(CPPFLAGS) $(LDFLAGS) $(TARGET_ARCH)endif # Selftest makefiles can override those targets by setting# OVERRIDE_TARGETS = 1.ifeq ($(OVERRIDE_TARGETS),)LOCAL_HDRS := $(selfdir)/kselftest_harness.h $(selfdir)/kselftest.h$(OUTPUT)/%:%.c $(LOCAL_HDRS)	$(LINK.c) $^ $(LDLIBS) -o $@ $(OUTPUT)/%.o:%.S	$(COMPILE.S) $^ -o $@ $(OUTPUT)/%:%.S	$(LINK.S) $^ $(LDLIBS) -o $@endif .PHONY: run_tests all clean install emit_tests