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
148