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