tools/spi/Makefile

   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/spidev.h: ../../include/uapi/linux/spi/spidev.h
  29         mkdir -p $(OUTPUT)include/linux/spi 2>&1 || true
  30         ln -sf $(CURDIR)/../../include/uapi/linux/spi/spidev.h $@
  31
  32 prepare: $(OUTPUT)include/linux/spi/spidev.h
  33
  34 #
  35 # spidev_test
  36 #
  37 SPIDEV_TEST_IN := $(OUTPUT)spidev_test-in.o
  38 $(SPIDEV_TEST_IN): prepare FORCE
  39         $(Q)$(MAKE) $(build)=spidev_test
  40 $(OUTPUT)spidev_test: $(SPIDEV_TEST_IN)
  41         $(QUIET_LINK)$(CC) $(CFLAGS) $(LDFLAGS) $< -o $@
  42
  43 #
  44 # spidev_fdx
  45 #
  46 SPIDEV_FDX_IN := $(OUTPUT)spidev_fdx-in.o
  47 $(SPIDEV_FDX_IN): prepare FORCE
  48         $(Q)$(MAKE) $(build)=spidev_fdx
  49 $(OUTPUT)spidev_fdx: $(SPIDEV_FDX_IN)
  50         $(QUIET_LINK)$(CC) $(CFLAGS) $(LDFLAGS) $< -o $@
  51
  52 clean:
  53         rm -f $(ALL_PROGRAMS)
  54         rm -f $(OUTPUT)include/linux/spi/spidev.h
  55         find $(if $(OUTPUT),$(OUTPUT),.) -name '*.o' -delete -o -name '\.*.d' -delete
  56
  57 install: $(ALL_PROGRAMS)
  58         install -d -m 755 $(DESTDIR)$(bindir);          \
  59         for program in $(ALL_PROGRAMS); do              \
  60                 install $$program $(DESTDIR)$(bindir);  \
  61         done
  62
  63 FORCE:
  64
  65 .PHONY: all install clean FORCE prepare