1 # SPDX-License-Identifier: GPL-2.0-only 2 include ../scripts/Makefile.include 3 4 bindir ?= /usr/bin 5 6 ifeq ($(srctree),) 7 srctree := $(patsubst %/,%,$(dir $(CURDIR))) 8 srctree := $(patsubst %/,%,$(dir $(srctree))) 9 endif 10 11 # Do not use make's built-in rules 12 # (this improves performance and avoids hard-to-debug behaviour); 13 MAKEFLAGS += -r 14 15 CFLAGS += -O2 -Wall -g -D_GNU_SOURCE -I$(OUTPUT)include 16 17 ALL_TARGETS := spidev_test spidev_fdx 18 ALL_PROGRAMS := $(patsubst %,$(OUTPUT)%,$(ALL_TARGETS)) 19 20 all: $(ALL_PROGRAMS) 21 22 export srctree OUTPUT CC LD CFLAGS 23 include $(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 33 prepare: $(OUTPUT)include/linux/spi 34 35 # 36 # spidev_test 37 # 38 SPIDEV_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 # 47 SPIDEV_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 53 clean: 54 rm -f $(ALL_PROGRAMS) 55 rm -rf $(OUTPUT)include/ 56 find $(or $(OUTPUT),.) -name '*.o' -delete 57 find $(or $(OUTPUT),.) -name '\.*.o.d' -delete 58 find $(or $(OUTPUT),.) -name '\.*.o.cmd' -delete 59 60 install: $(ALL_PROGRAMS) 61 install -d -m 755 $(DESTDIR)$(bindir); \ 62 for program in $(ALL_PROGRAMS); do \ 63 install $$program $(DESTDIR)$(bindir); \ 64 done 65 66 FORCE: 67 68 .PHONY: all install clean FORCE prepare
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