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