1 # SPDX-License-Identifier: GPL-2.0
2 include ../scripts/Makefile.include
3
4 bindir ?= /usr/bin
5
6 # This will work when gpio is built in tools e
7 # isn't set and when invoked from selftests bu
8 # is set to ".". building_out_of_srctree is un
9 # builds
10 ifndef building_out_of_srctree
11 srctree := $(patsubst %/,%,$(dir $(CURDIR)))
12 srctree := $(patsubst %/,%,$(dir $(srctree)))
13 endif
14
15 # Do not use make's built-in rules
16 # (this improves performance and avoids hard-t
17 MAKEFLAGS += -r
18
19 override CFLAGS += -O2 -Wall -g -D_GNU_SOURCE
20
21 ALL_TARGETS := lsgpio gpio-hammer gpio-event-m
22 ALL_PROGRAMS := $(patsubst %,$(OUTPUT)%,$(ALL_
23
24 all: $(ALL_PROGRAMS)
25
26 export srctree OUTPUT CC LD CFLAGS
27 include $(srctree)/tools/build/Makefile.includ
28
29 #
30 # We need the following to be outside of kerne
31 #
32 $(OUTPUT)include/linux/gpio.h: ../../include/u
33 mkdir -p $(OUTPUT)include/linux 2>&1 |
34 ln -sf $(CURDIR)/../../include/uapi/li
35
36 prepare: $(OUTPUT)include/linux/gpio.h
37
38 GPIO_UTILS_IN := $(OUTPUT)gpio-utils-in.o
39 $(GPIO_UTILS_IN): prepare FORCE
40 $(Q)$(MAKE) $(build)=gpio-utils
41
42 #
43 # lsgpio
44 #
45 LSGPIO_IN := $(OUTPUT)lsgpio-in.o
46 $(LSGPIO_IN): prepare FORCE $(OUTPUT)gpio-util
47 $(Q)$(MAKE) $(build)=lsgpio
48 $(OUTPUT)lsgpio: $(LSGPIO_IN)
49 $(QUIET_LINK)$(CC) $(CFLAGS) $(LDFLAGS
50
51 #
52 # gpio-hammer
53 #
54 GPIO_HAMMER_IN := $(OUTPUT)gpio-hammer-in.o
55 $(GPIO_HAMMER_IN): prepare FORCE $(OUTPUT)gpio
56 $(Q)$(MAKE) $(build)=gpio-hammer
57 $(OUTPUT)gpio-hammer: $(GPIO_HAMMER_IN)
58 $(QUIET_LINK)$(CC) $(CFLAGS) $(LDFLAGS
59
60 #
61 # gpio-event-mon
62 #
63 GPIO_EVENT_MON_IN := $(OUTPUT)gpio-event-mon-i
64 $(GPIO_EVENT_MON_IN): prepare FORCE $(OUTPUT)g
65 $(Q)$(MAKE) $(build)=gpio-event-mon
66 $(OUTPUT)gpio-event-mon: $(GPIO_EVENT_MON_IN)
67 $(QUIET_LINK)$(CC) $(CFLAGS) $(LDFLAGS
68
69 #
70 # gpio-watch
71 #
72 GPIO_WATCH_IN := $(OUTPUT)gpio-watch-in.o
73 $(GPIO_WATCH_IN): prepare FORCE
74 $(Q)$(MAKE) $(build)=gpio-watch
75 $(OUTPUT)gpio-watch: $(GPIO_WATCH_IN)
76 $(QUIET_LINK)$(CC) $(CFLAGS) $(LDFLAGS
77
78 clean:
79 rm -f $(ALL_PROGRAMS)
80 rm -f $(OUTPUT)include/linux/gpio.h
81 find $(or $(OUTPUT),.) -name '*.o' -de
82
83 install: $(ALL_PROGRAMS)
84 install -d -m 755 $(DESTDIR)$(bindir);
85 for program in $(ALL_PROGRAMS); do
86 install $$program $(DESTDIR)$(
87 done
88
89 FORCE:
90
91 .PHONY: all install clean FORCE prepare
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