tools/counter/Makefile

   1 # SPDX-License-Identifier: GPL-2.0
   2 include ../scripts/Makefile.include
   3
   4 bindir ?= /usr/bin
   5
   6 ifeq ($(srctree),)
   7 srctree := $(patsubst %/,%,$(dir $(CURDIR)))
   8 srctree := $(patsubst %/,%,$(dir $(srctree)))
   9 endif
  10
  11 # Do not use make's built-in rules
  12 # (this improves performance and avoids hard-to-debug behaviour);
  13 MAKEFLAGS += -r
  14
  15 override CFLAGS += -O2 -Wall -g -D_GNU_SOURCE -I$(OUTPUT)include \
  16          -I$(srctree)/tools/include
  17
  18 ALL_TARGETS := counter_example counter_watch_events
  19 ALL_PROGRAMS := $(patsubst %,$(OUTPUT)%,$(ALL_TARGETS))
  20
  21 all: $(ALL_PROGRAMS)
  22
  23 export srctree OUTPUT CC LD CFLAGS
  24 include $(srctree)/tools/build/Makefile.include
  25
  26 #
  27 # We need the following to be outside of kernel tree
  28 #
  29 $(OUTPUT)include/linux/counter.h: ../../include/uapi/linux/counter.h
  30         mkdir -p $(OUTPUT)include/linux 2>&1 || true
  31         ln -sf $(CURDIR)/../../include/uapi/linux/counter.h $@
  32
  33 prepare: $(OUTPUT)include/linux/counter.h
  34
  35 COUNTER_EXAMPLE := $(OUTPUT)counter_example.o
  36 $(COUNTER_EXAMPLE): prepare FORCE
  37         $(Q)$(MAKE) $(build)=counter_example
  38 $(OUTPUT)counter_example: $(COUNTER_EXAMPLE)
  39         $(QUIET_LINK)$(CC) $(CFLAGS) $(LDFLAGS) $< -o $@
  40
  41 COUNTER_WATCH_EVENTS := $(OUTPUT)counter_watch_events.o
  42 $(COUNTER_WATCH_EVENTS): prepare FORCE
  43         $(Q)$(MAKE) $(build)=counter_watch_events
  44 $(OUTPUT)counter_watch_events: $(COUNTER_WATCH_EVENTS)
  45         $(QUIET_LINK)$(CC) $(CFLAGS) $(LDFLAGS) $< -o $@
  46
  47 clean:
  48         rm -f $(ALL_PROGRAMS)
  49         rm -rf $(OUTPUT)include/linux/counter.h
  50         rm -df $(OUTPUT)include/linux
  51         rm -df $(OUTPUT)include
  52         find $(or $(OUTPUT),.) -name '*.o' -delete -o -name '\.*.d' -delete
  53         find $(or $(OUTPUT),.) -name '\.*.o.cmd' -delete
  54
  55 install: $(ALL_PROGRAMS)
  56         install -d -m 755 $(DESTDIR)$(bindir);          \
  57         for program in $(ALL_PROGRAMS); do              \
  58                 install $$program $(DESTDIR)$(bindir);  \
  59         done
  60
  61 FORCE:
  62
  63 .PHONY: all install clean FORCE prepare