1# This mimics the top-level Makefile. We do it explicitly here so that this
  2# Makefile can operate with or without the kbuild infrastructure.
  3CC := $(CROSS_COMPILE)gcc
  4
  5ifeq (0,$(MAKELEVEL))
  6    ifeq ($(OUTPUT),)
  7	OUTPUT := $(shell pwd)
  8	DEFAULT_INSTALL_HDR_PATH := 1
  9    endif
 10endif
 11selfdir = $(realpath $(dir $(filter %/lib.mk,$(MAKEFILE_LIST))))
 12
 13# The following are built by lib.mk common compile rules.
 14# TEST_CUSTOM_PROGS should be used by tests that require
 15# custom build rule and prevent common build rule use.
 16# TEST_PROGS are for test shell scripts.
 17# TEST_CUSTOM_PROGS and TEST_PROGS will be run by common run_tests
 18# and install targets. Common clean doesn't touch them.
 19TEST_GEN_PROGS := $(patsubst %,$(OUTPUT)/%,$(TEST_GEN_PROGS))
 20TEST_GEN_PROGS_EXTENDED := $(patsubst %,$(OUTPUT)/%,$(TEST_GEN_PROGS_EXTENDED))
 21TEST_GEN_FILES := $(patsubst %,$(OUTPUT)/%,$(TEST_GEN_FILES))
 22
 23ifdef KSFT_KHDR_INSTALL
 24top_srcdir ?= ../../../..
 25include $(top_srcdir)/scripts/subarch.include
 26ARCH		?= $(SUBARCH)
 27
 28# set default goal to all, so make without a target runs all, even when
 29# all isn't the first target in the file.
 30.DEFAULT_GOAL := all
 31
 32# Invoke headers install with --no-builtin-rules to avoid circular
 33# dependency in "make kselftest" case. In this case, second level
 34# make inherits builtin-rules which will use the rule generate
 35# Makefile.o and runs into
 36# "Circular Makefile.o <- prepare dependency dropped."
 37# and headers_install fails and test compile fails.
 38# O= KBUILD_OUTPUT cases don't run into this error, since main Makefile
 39# invokes them as sub-makes and --no-builtin-rules is not necessary,
 40# but doesn't cause any failures. Keep it simple and use the same
 41# flags in both cases.
 42# Note that the support to install headers from lib.mk is necessary
 43# when test Makefile is run directly with "make -C".
 44# When local build is done, headers are installed in the default
 45# INSTALL_HDR_PATH usr/include.
 46.PHONY: khdr
 47khdr:
 48ifndef KSFT_KHDR_INSTALL_DONE
 49ifeq (1,$(DEFAULT_INSTALL_HDR_PATH))
 50	make --no-builtin-rules ARCH=$(ARCH) -C $(top_srcdir) headers_install
 51else
 52	make --no-builtin-rules INSTALL_HDR_PATH=$$OUTPUT/usr \
 53		ARCH=$(ARCH) -C $(top_srcdir) headers_install
 54endif
 55endif
 56
 57all: khdr $(TEST_GEN_PROGS) $(TEST_GEN_PROGS_EXTENDED) $(TEST_GEN_FILES)
 58else
 59all: $(TEST_GEN_PROGS) $(TEST_GEN_PROGS_EXTENDED) $(TEST_GEN_FILES)
 60endif
 61
 62.ONESHELL:
 63define RUN_TESTS
 64	@BASE_DIR="$(selfdir)";			\
 65	. $(selfdir)/kselftest/runner.sh;	\
 66	if [ "X$(summary)" != "X" ]; then       \
 67		per_test_logging=1;		\
 68	fi;                                     \
 69	run_many $(1)
 70endef
 71
 72run_tests: all
 73ifdef building_out_of_srctree
 74	@if [ "X$(TEST_PROGS) $(TEST_PROGS_EXTENDED) $(TEST_FILES)" != "X" ]; then
 75		@rsync -aq $(TEST_PROGS) $(TEST_PROGS_EXTENDED) $(TEST_FILES) $(OUTPUT)
 76	fi
 77	@if [ "X$(TEST_PROGS)" != "X" ]; then
 78		$(call RUN_TESTS, $(TEST_GEN_PROGS) $(TEST_CUSTOM_PROGS) $(OUTPUT)/$(TEST_PROGS))
 79	else
 80		$(call RUN_TESTS, $(TEST_GEN_PROGS) $(TEST_CUSTOM_PROGS))
 81	fi
 82else
 83	$(call RUN_TESTS, $(TEST_GEN_PROGS) $(TEST_CUSTOM_PROGS) $(TEST_PROGS))
 84endif
 85
 86define INSTALL_RULE
 87	@if [ "X$(TEST_PROGS)$(TEST_PROGS_EXTENDED)$(TEST_FILES)" != "X" ]; then					\
 88		mkdir -p ${INSTALL_PATH};										\
 89		echo "rsync -a $(TEST_PROGS) $(TEST_PROGS_EXTENDED) $(TEST_FILES) $(INSTALL_PATH)/";	\
 90		rsync -a $(TEST_PROGS) $(TEST_PROGS_EXTENDED) $(TEST_FILES) $(INSTALL_PATH)/;		\
 91	fi
 92	@if [ "X$(TEST_GEN_PROGS)$(TEST_CUSTOM_PROGS)$(TEST_GEN_PROGS_EXTENDED)$(TEST_GEN_FILES)" != "X" ]; then					\
 93		mkdir -p ${INSTALL_PATH};										\
 94		echo "rsync -a $(TEST_GEN_PROGS) $(TEST_CUSTOM_PROGS) $(TEST_GEN_PROGS_EXTENDED) $(TEST_GEN_FILES) $(INSTALL_PATH)/";	\
 95		rsync -a $(TEST_GEN_PROGS) $(TEST_CUSTOM_PROGS) $(TEST_GEN_PROGS_EXTENDED) $(TEST_GEN_FILES) $(INSTALL_PATH)/;		\
 96	fi
 97endef
 98
 99install: all
100ifdef INSTALL_PATH
101	$(INSTALL_RULE)
102else
103	$(error Error: set INSTALL_PATH to use install)
104endif
105
106emit_tests:
107	for TEST in $(TEST_GEN_PROGS) $(TEST_CUSTOM_PROGS) $(TEST_PROGS); do \
108		BASENAME_TEST=`basename $$TEST`;	\
109		echo "	\\";				\
110		echo -n "	\"$$BASENAME_TEST\"";	\
111	done;						\
112
113# define if isn't already. It is undefined in make O= case.
114ifeq ($(RM),)
115RM := rm -f
116endif
117
118define CLEAN
119	$(RM) -r $(TEST_GEN_PROGS) $(TEST_GEN_PROGS_EXTENDED) $(TEST_GEN_FILES) $(EXTRA_CLEAN)
120endef
121
122clean:
123	$(CLEAN)
124
125# When make O= with kselftest target from main level
126# the following aren't defined.
127#
128ifdef building_out_of_srctree
129LINK.c = $(CC) $(CFLAGS) $(CPPFLAGS) $(LDFLAGS) $(TARGET_ARCH)
130COMPILE.S = $(CC) $(ASFLAGS) $(CPPFLAGS) $(TARGET_ARCH) -c
131LINK.S = $(CC) $(ASFLAGS) $(CPPFLAGS) $(LDFLAGS) $(TARGET_ARCH)
132endif
133
134# Selftest makefiles can override those targets by setting
135# OVERRIDE_TARGETS = 1.
136ifeq ($(OVERRIDE_TARGETS),)
137$(OUTPUT)/%:%.c
138	$(LINK.c) $^ $(LDLIBS) -o $@
139
140$(OUTPUT)/%.o:%.S
141	$(COMPILE.S) $^ -o $@
142
143$(OUTPUT)/%:%.S
144	$(LINK.S) $^ $(LDLIBS) -o $@
145endif
146
147.PHONY: run_tests all clean install emit_tests