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 GPIO_UTILS_IN := $(OUTPUT)gpio-utils-in.o
  36 $(GPIO_UTILS_IN): prepare FORCE
  37         $(Q)$(MAKE) $(build)=gpio-utils
  38
  39 #
  40 # lsgpio
  41 #
  42 LSGPIO_IN := $(OUTPUT)lsgpio-in.o
  43 $(LSGPIO_IN): prepare FORCE $(OUTPUT)gpio-utils-in.o
  44         $(Q)$(MAKE) $(build)=lsgpio
  45 $(OUTPUT)lsgpio: $(LSGPIO_IN)
  46         $(QUIET_LINK)$(CC) $(CFLAGS) $(LDFLAGS) $< -o $@
  47
  48 #
  49 # gpio-hammer
  50 #
  51 GPIO_HAMMER_IN := $(OUTPUT)gpio-hammer-in.o
  52 $(GPIO_HAMMER_IN): prepare FORCE $(OUTPUT)gpio-utils-in.o
  53         $(Q)$(MAKE) $(build)=gpio-hammer
  54 $(OUTPUT)gpio-hammer: $(GPIO_HAMMER_IN)
  55         $(QUIET_LINK)$(CC) $(CFLAGS) $(LDFLAGS) $< -o $@
  56
  57 #
  58 # gpio-event-mon
  59 #
  60 GPIO_EVENT_MON_IN := $(OUTPUT)gpio-event-mon-in.o
  61 $(GPIO_EVENT_MON_IN): prepare FORCE $(OUTPUT)gpio-utils-in.o
  62         $(Q)$(MAKE) $(build)=gpio-event-mon
  63 $(OUTPUT)gpio-event-mon: $(GPIO_EVENT_MON_IN)
  64         $(QUIET_LINK)$(CC) $(CFLAGS) $(LDFLAGS) $< -o $@
  65
  66 clean:
  67         rm -f $(ALL_PROGRAMS)
  68         rm -f $(OUTPUT)include/linux/gpio.h
  69         find $(if $(OUTPUT),$(OUTPUT),.) -name '*.o' -delete -o -name '\.*.d' -delete
  70
  71 install: $(ALL_PROGRAMS)
  72         install -d -m 755 $(DESTDIR)$(bindir);          \
  73         for program in $(ALL_PROGRAMS); do              \
  74                 install $$program $(DESTDIR)$(bindir);  \
  75         done
  76
  77 FORCE:
  78
  79 .PHONY: all install clean FORCE prepare