1CC = $(CROSS_COMPILE)gcc
 2CFLAGS += -Wall -g -D_GNU_SOURCE
 3
 4all: lsgpio
 5
 6lsgpio: __KEEPMAKEFILEO__B.o __KEEPMAKEFILEO__C.o
 
 
 
 7
 8%.o: %.c gpio-utils.h
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 9
10.PHONY: clean
11clean:
12	rm -f *.o lsgpio
 
 
 
 
 
 
 
 
 
 
 
 

 1# SPDX-License-Identifier: GPL-2.0
 2include ../scripts/Makefile.include
 3
 4bindir ?= /usr/bin
 5
 6ifeq ($(srctree),)
 7srctree := $(patsubst %/,%,$(dir $(CURDIR)))
 8srctree := $(patsubst %/,%,$(dir $(srctree)))
 9endif
10
11# Do not use make's built-in rules
12# (this improves performance and avoids hard-to-debug behaviour);
13MAKEFLAGS += -r
14
15CFLAGS += -O2 -Wall -g -D_GNU_SOURCE -I$(OUTPUT)include
16
17ALL_TARGETS := lsgpio gpio-hammer gpio-event-mon
18ALL_PROGRAMS := $(patsubst %,$(OUTPUT)%,$(ALL_TARGETS))
19
20all: $(ALL_PROGRAMS)
21
22export srctree OUTPUT CC LD CFLAGS
23include $(srctree)/tools/build/Makefile.include
24
25#
26# We need the following to be outside of kernel tree
27#
28$(OUTPUT)include/linux/gpio.h: ../../include/uapi/linux/gpio.h
29	mkdir -p $(OUTPUT)include/linux 2>&1 || true
30	ln -sf $(CURDIR)/../../include/uapi/linux/gpio.h $@
31
32prepare: $(OUTPUT)include/linux/gpio.h
33
34#
35# lsgpio
36#
37LSGPIO_IN := $(OUTPUT)lsgpio-in.o
38$(LSGPIO_IN): prepare FORCE
39	$(Q)$(MAKE) $(build)=lsgpio
40$(OUTPUT)lsgpio: $(LSGPIO_IN)
41	$(QUIET_LINK)$(CC) $(CFLAGS) $(LDFLAGS) $< -o $@
42
43#
44# gpio-hammer
45#
46GPIO_HAMMER_IN := $(OUTPUT)gpio-hammer-in.o
47$(GPIO_HAMMER_IN): prepare FORCE
48	$(Q)$(MAKE) $(build)=gpio-hammer
49$(OUTPUT)gpio-hammer: $(GPIO_HAMMER_IN)
50	$(QUIET_LINK)$(CC) $(CFLAGS) $(LDFLAGS) $< -o $@
51
52#
53# gpio-event-mon
54#
55GPIO_EVENT_MON_IN := $(OUTPUT)gpio-event-mon-in.o
56$(GPIO_EVENT_MON_IN): prepare FORCE
57	$(Q)$(MAKE) $(build)=gpio-event-mon
58$(OUTPUT)gpio-event-mon: $(GPIO_EVENT_MON_IN)
59	$(QUIET_LINK)$(CC) $(CFLAGS) $(LDFLAGS) $< -o $@
60
 
61clean:
62	rm -f $(ALL_PROGRAMS)
63	rm -f $(OUTPUT)include/linux/gpio.h
64	find $(if $(OUTPUT),$(OUTPUT),.) -name '*.o' -delete -o -name '\.*.d' -delete
65
66install: $(ALL_PROGRAMS)
67	install -d -m 755 $(DESTDIR)$(bindir);		\
68	for program in $(ALL_PROGRAMS); do		\
69		install $$program $(DESTDIR)$(bindir);	\
70	done
71
72FORCE:
73
74.PHONY: all install clean FORCE prepare