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