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# SPDX-License-Identifier: GPL-2.0-only
include ../scripts/Makefile.include
bindir ?= /usr/bin
ifeq ($(srctree),)
srctree := $(patsubst %/,%,$(dir $(CURDIR)))
srctree := $(patsubst %/,%,$(dir $(srctree)))
endif
# Do not use make's built-in rules
# (this improves performance and avoids hard-to-debug behaviour);
MAKEFLAGS += -r
CFLAGS += -O2 -Wall -g -D_GNU_SOURCE -I$(OUTPUT)include
ALL_TARGETS := spidev_test spidev_fdx
ALL_PROGRAMS := $(patsubst %,$(OUTPUT)%,$(ALL_TARGETS))
all: $(ALL_PROGRAMS)
export srctree OUTPUT CC LD CFLAGS
include $(srctree)/tools/build/Makefile.include
#
# We need the following to be outside of kernel tree
#
$(OUTPUT)include/linux/spi: ../../include/uapi/linux/spi
mkdir -p $(OUTPUT)include/linux/spi 2>&1 || true
ln -sf $(CURDIR)/../../include/uapi/linux/spi/spidev.h $@
ln -sf $(CURDIR)/../../include/uapi/linux/spi/spi.h $@
prepare: $(OUTPUT)include/linux/spi
#
# spidev_test
#
SPIDEV_TEST_IN := $(OUTPUT)spidev_test-in.o
$(SPIDEV_TEST_IN): prepare FORCE
$(Q)$(MAKE) $(build)=spidev_test
$(OUTPUT)spidev_test: $(SPIDEV_TEST_IN)
$(QUIET_LINK)$(CC) $(CFLAGS) $(LDFLAGS) $< -o $@
#
# spidev_fdx
#
SPIDEV_FDX_IN := $(OUTPUT)spidev_fdx-in.o
$(SPIDEV_FDX_IN): prepare FORCE
$(Q)$(MAKE) $(build)=spidev_fdx
$(OUTPUT)spidev_fdx: $(SPIDEV_FDX_IN)
$(QUIET_LINK)$(CC) $(CFLAGS) $(LDFLAGS) $< -o $@
clean:
rm -f $(ALL_PROGRAMS)
rm -rf $(OUTPUT)include/
find $(if $(OUTPUT),$(OUTPUT),.) -name '*.o' -delete
find $(if $(OUTPUT),$(OUTPUT),.) -name '\.*.o.d' -delete
find $(if $(OUTPUT),$(OUTPUT),.) -name '\.*.o.cmd' -delete
install: $(ALL_PROGRAMS)
install -d -m 755 $(DESTDIR)$(bindir); \
for program in $(ALL_PROGRAMS); do \
install $$program $(DESTDIR)$(bindir); \
done
FORCE:
.PHONY: all install clean FORCE prepare
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