tools/gpio/Makefile

   1 include ../scripts/Makefile.include
   2
   3 bindir ?= /usr/bin
   4
   5 ifeq ($(srctree),)
   6 srctree := $(patsubst %/,%,$(dir $(shell pwd)))
   7 srctree := $(patsubst %/,%,$(dir $(srctree)))
   8 endif
   9
  10 # Do not use make's built-in rules
  11 # (this improves performance and avoids hard-to-debug behaviour);
  12 MAKEFLAGS += -r
  13
  14 CC = $(CROSS_COMPILE)gcc
  15 LD = $(CROSS_COMPILE)ld
  16 CFLAGS += -O2 -Wall -g -D_GNU_SOURCE -I$(OUTPUT)include
  17
  18 ALL_TARGETS := lsgpio gpio-hammer gpio-event-mon
  19 ALL_PROGRAMS := $(patsubst %,$(OUTPUT)%,$(ALL_TARGETS))
  20
  21 all: $(ALL_PROGRAMS)
  22
  23 export srctree OUTPUT CC LD CFLAGS
  24 include $(srctree)/tools/build/Makefile.include
  25
  26 #
  27 # We need the following to be outside of kernel tree
  28 #
  29 $(OUTPUT)include/linux/gpio.h: ../../include/uapi/linux/gpio.h
  30         mkdir -p $(OUTPUT)include/linux 2>&1 || true
  31         ln -sf $(CURDIR)/../../include/uapi/linux/gpio.h $@
  32
  33 prepare: $(OUTPUT)include/linux/gpio.h
  34
  35 #
  36 # lsgpio
  37 #
  38 LSGPIO_IN := $(OUTPUT)lsgpio-in.o
  39 $(LSGPIO_IN): prepare FORCE
  40         $(Q)$(MAKE) $(build)=lsgpio
  41 $(OUTPUT)lsgpio: $(LSGPIO_IN)
  42         $(QUIET_LINK)$(CC) $(CFLAGS) $(LDFLAGS) $< -o $@
  43
  44 #
  45 # gpio-hammer
  46 #
  47 GPIO_HAMMER_IN := $(OUTPUT)gpio-hammer-in.o
  48 $(GPIO_HAMMER_IN): prepare FORCE
  49         $(Q)$(MAKE) $(build)=gpio-hammer
  50 $(OUTPUT)gpio-hammer: $(GPIO_HAMMER_IN)
  51         $(QUIET_LINK)$(CC) $(CFLAGS) $(LDFLAGS) $< -o $@
  52
  53 #
  54 # gpio-event-mon
  55 #
  56 GPIO_EVENT_MON_IN := $(OUTPUT)gpio-event-mon-in.o
  57 $(GPIO_EVENT_MON_IN): prepare FORCE
  58         $(Q)$(MAKE) $(build)=gpio-event-mon
  59 $(OUTPUT)gpio-event-mon: $(GPIO_EVENT_MON_IN)
  60         $(QUIET_LINK)$(CC) $(CFLAGS) $(LDFLAGS) $< -o $@
  61
  62 clean:
  63         rm -f $(ALL_PROGRAMS)
  64         rm -f $(OUTPUT)include/linux/gpio.h
  65         find $(if $(OUTPUT),$(OUTPUT),.) -name '*.o' -delete -o -name '\.*.d' -delete
  66
  67 install: $(ALL_PROGRAMS)
  68         install -d -m 755 $(DESTDIR)$(bindir);          \
  69         for program in $(ALL_PROGRAMS); do              \
  70                 install $$program $(DESTDIR)$(bindir);  \
  71         done
  72
  73 FORCE:
  74
  75 .PHONY: all install clean FORCE prepare