64 lines · plain
1# SPDX-License-Identifier: GPL-2.02include ../scripts/Makefile.include3 4bindir ?= /usr/bin5 6ifeq ($(srctree),)7srctree := $(patsubst %/,%,$(dir $(CURDIR)))8srctree := $(patsubst %/,%,$(dir $(srctree)))9endif10 11# Do not use make's built-in rules12# (this improves performance and avoids hard-to-debug behaviour);13MAKEFLAGS += -r14 15override CFLAGS += -O2 -Wall -g -D_GNU_SOURCE -I$(OUTPUT)include \16 -I$(srctree)/tools/include17 18ALL_TARGETS := counter_example counter_watch_events19ALL_PROGRAMS := $(patsubst %,$(OUTPUT)%,$(ALL_TARGETS))20 21all: $(ALL_PROGRAMS)22 23export srctree OUTPUT CC LD CFLAGS24include $(srctree)/tools/build/Makefile.include25 26#27# We need the following to be outside of kernel tree28#29$(OUTPUT)include/linux/counter.h: ../../include/uapi/linux/counter.h30 mkdir -p $(OUTPUT)include/linux 2>&1 || true31 ln -sf $(CURDIR)/../../include/uapi/linux/counter.h $@32 33prepare: $(OUTPUT)include/linux/counter.h34 35COUNTER_EXAMPLE := $(OUTPUT)counter_example.o36$(COUNTER_EXAMPLE): prepare FORCE37 $(Q)$(MAKE) $(build)=counter_example38$(OUTPUT)counter_example: $(COUNTER_EXAMPLE)39 $(QUIET_LINK)$(CC) $(CFLAGS) $(LDFLAGS) $< -o $@40 41COUNTER_WATCH_EVENTS := $(OUTPUT)counter_watch_events.o42$(COUNTER_WATCH_EVENTS): prepare FORCE43 $(Q)$(MAKE) $(build)=counter_watch_events44$(OUTPUT)counter_watch_events: $(COUNTER_WATCH_EVENTS)45 $(QUIET_LINK)$(CC) $(CFLAGS) $(LDFLAGS) $< -o $@46 47clean:48 rm -f $(ALL_PROGRAMS)49 rm -rf $(OUTPUT)include/linux/counter.h50 rm -df $(OUTPUT)include/linux51 rm -df $(OUTPUT)include52 find $(or $(OUTPUT),.) -name '*.o' -delete -o -name '\.*.d' -delete53 find $(or $(OUTPUT),.) -name '\.*.o.cmd' -delete54 55install: $(ALL_PROGRAMS)56 install -d -m 755 $(DESTDIR)$(bindir); \57 for program in $(ALL_PROGRAMS); do \58 install $$program $(DESTDIR)$(bindir); \59 done60 61FORCE:62 63.PHONY: all install clean FORCE prepare64