tools/spi/Makefile

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