rules.mak

   1
   2 # Don't use implicit rules or variables
   3 # we have explicit rules for everything
   4 MAKEFLAGS += -rR
   5
   6 # Files with this suffixes are final, don't try to generate them
   7 # using implicit rules
   8 %.d:
   9 %.h:
  10 %.c:
  11 %.m:
  12 %.mak:
  13
  14 QEMU_CFLAGS += -MMD -MP -MT $@
  15
  16 %.o: %.c $(GENERATED_HEADERS)
  17         $(call quiet-command,$(CC) $(QEMU_CFLAGS) $(CFLAGS) -c -o $@ $<,"  CC    $(TARGET_DIR)$@")
  18
  19 %.o: %.S
  20         $(call quiet-command,$(CC) $(QEMU_CFLAGS) $(CFLAGS) -c -o $@ $<,"  AS    $(TARGET_DIR)$@")
  21
  22 %.o: %.m
  23         $(call quiet-command,$(CC) $(QEMU_CFLAGS) $(CFLAGS) -c -o $@ $<,"  OBJC  $(TARGET_DIR)$@")
  24
  25 LINK = $(call quiet-command,$(CC) $(QEMU_CFLAGS) $(CFLAGS) $(LDFLAGS) -o $@ $(1) $(ARLIBS_BEGIN) $(ARLIBS) $(ARLIBS_END) $(LIBS),"  LINK  $(TARGET_DIR)$@")
  26
  27 %$(EXESUF): %.o
  28         $(call LINK,$^)
  29
  30 %.a:
  31         $(call quiet-command,rm -f $@ && $(AR) rcs $@ $^,"  AR    $(TARGET_DIR)$@")
  32
  33 quiet-command = $(if $(V),$1,$(if $(2),@echo $2 && $1, @$1))
  34
  35 # cc-option
  36 # Usage: CFLAGS+=$(call cc-option, -falign-functions=0, -malign-functions=0)
  37
  38 cc-option = $(if $(shell $(CC) $1 $2 -S -o /dev/null -xc /dev/null \
  39               >/dev/null 2>&1 && echo OK), $2, $3)
  40
  41 # Generate timestamp files for .h include files
  42
  43 %.h: %.h-timestamp
  44         @test -f $@ || cp $< $@
  45
  46 %.h-timestamp: %.mak
  47         $(call quiet-command, sh $(SRC_PATH)/create_config < $< > $@, "  GEN   $*.h")
  48         @cmp $@ $*.h >/dev/null 2>&1 || cp $@ $*.h