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 ifeq ($(srctree),) 6 ifeq ($(srctree),)
7 srctree := $(patsubst %/,%,$(dir $(CURDIR))) 7 srctree := $(patsubst %/,%,$(dir $(CURDIR)))
8 srctree := $(patsubst %/,%,$(dir $(srctree))) 8 srctree := $(patsubst %/,%,$(dir $(srctree)))
9 endif 9 endif
10 10
11 # Do not use make's built-in rules 11 # Do not use make's built-in rules
12 # (this improves performance and avoids hard-t 12 # (this improves performance and avoids hard-to-debug behaviour);
13 MAKEFLAGS += -r 13 MAKEFLAGS += -r
14 14
15 override CFLAGS += -O2 -Wall -g -D_GNU_SOURCE !! 15 override CFLAGS += -O2 -Wall -g -D_GNU_SOURCE -I$(OUTPUT)include
16 -I$(srctree)/tools/include <<
17 16
18 ALL_TARGETS := counter_example counter_watch_e !! 17 ALL_TARGETS := counter_example
19 ALL_PROGRAMS := $(patsubst %,$(OUTPUT)%,$(ALL_ 18 ALL_PROGRAMS := $(patsubst %,$(OUTPUT)%,$(ALL_TARGETS))
20 19
21 all: $(ALL_PROGRAMS) 20 all: $(ALL_PROGRAMS)
22 21
23 export srctree OUTPUT CC LD CFLAGS 22 export srctree OUTPUT CC LD CFLAGS
24 include $(srctree)/tools/build/Makefile.includ 23 include $(srctree)/tools/build/Makefile.include
25 24
26 # 25 #
27 # We need the following to be outside of kerne 26 # We need the following to be outside of kernel tree
28 # 27 #
29 $(OUTPUT)include/linux/counter.h: ../../includ 28 $(OUTPUT)include/linux/counter.h: ../../include/uapi/linux/counter.h
30 mkdir -p $(OUTPUT)include/linux 2>&1 | 29 mkdir -p $(OUTPUT)include/linux 2>&1 || true
31 ln -sf $(CURDIR)/../../include/uapi/li 30 ln -sf $(CURDIR)/../../include/uapi/linux/counter.h $@
32 31
33 prepare: $(OUTPUT)include/linux/counter.h 32 prepare: $(OUTPUT)include/linux/counter.h
34 33
35 COUNTER_EXAMPLE := $(OUTPUT)counter_example.o 34 COUNTER_EXAMPLE := $(OUTPUT)counter_example.o
36 $(COUNTER_EXAMPLE): prepare FORCE 35 $(COUNTER_EXAMPLE): prepare FORCE
37 $(Q)$(MAKE) $(build)=counter_example 36 $(Q)$(MAKE) $(build)=counter_example
38 $(OUTPUT)counter_example: $(COUNTER_EXAMPLE) 37 $(OUTPUT)counter_example: $(COUNTER_EXAMPLE)
39 $(QUIET_LINK)$(CC) $(CFLAGS) $(LDFLAGS 38 $(QUIET_LINK)$(CC) $(CFLAGS) $(LDFLAGS) $< -o $@
40 39
41 COUNTER_WATCH_EVENTS := $(OUTPUT)counter_watch <<
42 $(COUNTER_WATCH_EVENTS): prepare FORCE <<
43 $(Q)$(MAKE) $(build)=counter_watch_eve <<
44 $(OUTPUT)counter_watch_events: $(COUNTER_WATCH <<
45 $(QUIET_LINK)$(CC) $(CFLAGS) $(LDFLAGS <<
46 <<
47 clean: 40 clean:
48 rm -f $(ALL_PROGRAMS) 41 rm -f $(ALL_PROGRAMS)
49 rm -rf $(OUTPUT)include/linux/counter. 42 rm -rf $(OUTPUT)include/linux/counter.h
50 rm -df $(OUTPUT)include/linux !! 43 find $(if $(OUTPUT),$(OUTPUT),.) -name '*.o' -delete -o -name '\.*.d' -delete
51 rm -df $(OUTPUT)include <<
52 find $(or $(OUTPUT),.) -name '*.o' -de <<
53 find $(or $(OUTPUT),.) -name '\.*.o.cm <<
54 44
55 install: $(ALL_PROGRAMS) 45 install: $(ALL_PROGRAMS)
56 install -d -m 755 $(DESTDIR)$(bindir); 46 install -d -m 755 $(DESTDIR)$(bindir); \
57 for program in $(ALL_PROGRAMS); do 47 for program in $(ALL_PROGRAMS); do \
58 install $$program $(DESTDIR)$( 48 install $$program $(DESTDIR)$(bindir); \
59 done 49 done
60 50
61 FORCE: 51 FORCE:
62 52
63 .PHONY: all install clean FORCE prepare 53 .PHONY: all install clean FORCE prepare
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