# SPDX-License-Identifier: GPL-2.0include ../scripts/Makefile.include bindir ?= /usr/bin ifeq ($(srctree),)srctree := $(patsubst %/,%,$(dir $(CURDIR)))srctree := $(patsubst %/,%,$(dir $(srctree)))endif # Do not use make's built-in rules# (this improves performance and avoids hard-to-debug behaviour);MAKEFLAGS += -r override CFLAGS += -O2 -Wall -g -D_GNU_SOURCE -I$(OUTPUT)include \	 -I$(srctree)/tools/include ALL_TARGETS := counter_example counter_watch_eventsALL_PROGRAMS := $(patsubst %,$(OUTPUT)%,$(ALL_TARGETS)) all: $(ALL_PROGRAMS) export srctree OUTPUT CC LD CFLAGSinclude $(srctree)/tools/build/Makefile.include ## We need the following to be outside of kernel tree#$(OUTPUT)include/linux/counter.h: ../../include/uapi/linux/counter.h	mkdir -p $(OUTPUT)include/linux 2>&1 || true	ln -sf $(CURDIR)/../../include/uapi/linux/counter.h $@ prepare: $(OUTPUT)include/linux/counter.h COUNTER_EXAMPLE := $(OUTPUT)counter_example.o$(COUNTER_EXAMPLE): prepare FORCE	$(Q)$(MAKE) $(build)=counter_example$(OUTPUT)counter_example: $(COUNTER_EXAMPLE)	$(QUIET_LINK)$(CC) $(CFLAGS) $(LDFLAGS) $< -o $@ COUNTER_WATCH_EVENTS := $(OUTPUT)counter_watch_events.o$(COUNTER_WATCH_EVENTS): prepare FORCE	$(Q)$(MAKE) $(build)=counter_watch_events$(OUTPUT)counter_watch_events: $(COUNTER_WATCH_EVENTS)	$(QUIET_LINK)$(CC) $(CFLAGS) $(LDFLAGS) $< -o $@ clean:	rm -f $(ALL_PROGRAMS)	rm -rf $(OUTPUT)include/linux/counter.h	rm -df $(OUTPUT)include/linux	rm -df $(OUTPUT)include	find $(or $(OUTPUT),.) -name '*.o' -delete -o -name '\.*.d' -delete	find $(or $(OUTPUT),.) -name '\.*.o.cmd' -delete install: $(ALL_PROGRAMS)	install -d -m 755 $(DESTDIR)$(bindir);		\	for program in $(ALL_PROGRAMS); do		\		install $$program $(DESTDIR)$(bindir);	\	done FORCE: .PHONY: all install clean FORCE prepare