1# SPDX-License-Identifier: GPL-2.0-only
2include ../scripts/Makefile.include
3
4bindir ?= /usr/bin
5
6ifeq ($(srctree),)
7srctree := $(patsubst %/,%,$(dir $(CURDIR)))
8srctree := $(patsubst %/,%,$(dir $(srctree)))
9endif
10
11# Do not use make's built-in rules
12# (this improves performance and avoids hard-to-debug behaviour);
13MAKEFLAGS += -r
14
15CFLAGS += -O2 -Wall -g -D_GNU_SOURCE -I$(OUTPUT)include
16
17ALL_TARGETS := spidev_test spidev_fdx
18ALL_PROGRAMS := $(patsubst %,$(OUTPUT)%,$(ALL_TARGETS))
19
20all: $(ALL_PROGRAMS)
21
22export srctree OUTPUT CC LD CFLAGS
23include $(srctree)/tools/build/Makefile.include
24
25#
26# We need the following to be outside of kernel tree
27#
28$(OUTPUT)include/linux/spi: ../../include/uapi/linux/spi
29	mkdir -p $(OUTPUT)include/linux/spi 2>&1 || true
30	ln -sf $(CURDIR)/../../include/uapi/linux/spi/spidev.h $@
31	ln -sf $(CURDIR)/../../include/uapi/linux/spi/spi.h $@
32
33prepare: $(OUTPUT)include/linux/spi
34
35#
36# spidev_test
37#
38SPIDEV_TEST_IN := $(OUTPUT)spidev_test-in.o
39$(SPIDEV_TEST_IN): prepare FORCE
40	$(Q)$(MAKE) $(build)=spidev_test
41$(OUTPUT)spidev_test: $(SPIDEV_TEST_IN)
42	$(QUIET_LINK)$(CC) $(CFLAGS) $(LDFLAGS) $< -o $@
43
44#
45# spidev_fdx
46#
47SPIDEV_FDX_IN := $(OUTPUT)spidev_fdx-in.o
48$(SPIDEV_FDX_IN): prepare FORCE
49	$(Q)$(MAKE) $(build)=spidev_fdx
50$(OUTPUT)spidev_fdx: $(SPIDEV_FDX_IN)
51	$(QUIET_LINK)$(CC) $(CFLAGS) $(LDFLAGS) $< -o $@
52
53clean:
54	rm -f $(ALL_PROGRAMS)
55	rm -rf $(OUTPUT)include/
56	find $(if $(OUTPUT),$(OUTPUT),.) -name '*.o' -delete
57	find $(if $(OUTPUT),$(OUTPUT),.) -name '\.*.o.d' -delete
58	find $(if $(OUTPUT),$(OUTPUT),.) -name '\.*.o.cmd' -delete
59
60install: $(ALL_PROGRAMS)
61	install -d -m 755 $(DESTDIR)$(bindir);		\
62	for program in $(ALL_PROGRAMS); do		\
63		install $$program $(DESTDIR)$(bindir);	\
64	done
65
66FORCE:
67
68.PHONY: all install clean FORCE prepare
69