[qemu.git] / rules.mak


# Don't use implicit rules or variables
# we have explicit rules for everything
MAKEFLAGS += -rR

# Files with this suffixes are final, don't try to generate them
# using implicit rules
%.d:
%.h:
%.c:
%.m:
%.mak:

# Flags for dependency generation
QEMU_DGFLAGS += -MMD -MP -MT $@ -MF $(*D)/$(*F).d

%.o: %.c
	$(call quiet-command,$(CC) $(QEMU_CFLAGS) $(QEMU_INCLUDES) $(QEMU_DGFLAGS) $(CFLAGS) -c -o $@ $<,"  CC    $(TARGET_DIR)$@")

%.o: %.S
	$(call quiet-command,$(CC) $(QEMU_CFLAGS) $(QEMU_INCLUDES) $(QEMU_DGFLAGS) $(CFLAGS) -c -o $@ $<,"  AS    $(TARGET_DIR)$@")

%.o: %.m
	$(call quiet-command,$(CC) $(QEMU_CFLAGS) $(QEMU_INCLUDES) $(QEMU_DGFLAGS) $(CFLAGS) -c -o $@ $<,"  OBJC  $(TARGET_DIR)$@")

LINK = $(call quiet-command,$(CC) $(QEMU_CFLAGS) $(CFLAGS) $(LDFLAGS) -o $@ $(1) $(LIBS),"  LINK  $(TARGET_DIR)$@")

%$(EXESUF): %.o
	$(call LINK,$^)

%.a:
	$(call quiet-command,rm -f $@ && $(AR) rcs $@ $^,"  AR    $(TARGET_DIR)$@")

quiet-command = $(if $(V),$1,$(if $(2),@echo $2 && $1, @$1))

# cc-option
# Usage: CFLAGS+=$(call cc-option, -falign-functions=0, -malign-functions=0)

cc-option = $(if $(shell $(CC) $1 $2 -S -o /dev/null -xc /dev/null \
              >/dev/null 2>&1 && echo OK), $2, $3)

VPATH_SUFFIXES = %.c %.h %.S %.m %.mak %.texi
set-vpath = $(if $1,$(foreach PATTERN,$(VPATH_SUFFIXES),$(eval vpath $(PATTERN) $1)))

# find-in-path
# Usage: $(call find-in-path, prog)
# Looks in the PATH if the argument contains no slash, else only considers one
# specific directory.  Returns an # empty string if the program doesn't exist
# there.
find-in-path = $(if $(find-string /, $1), \
        $(wildcard $1), \
        $(wildcard $(patsubst %, %/$1, $(subst :, ,$(PATH)))))

# Generate timestamp files for .h include files

%.h: %.h-timestamp
	@test -f $@ || cp $< $@

%.h-timestamp: %.mak
	$(call quiet-command, sh $(SRC_PATH)/scripts/create_config < $< > $@, "  GEN   $*.h")
	@cmp $@ $*.h >/dev/null 2>&1 || cp $@ $*.h

# will delete the target of a rule if commands exit with a nonzero exit status
.DELETE_ON_ERROR:
Commit	Line	Data
	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	# Flags for dependency generation
	15	QEMU_DGFLAGS += -MMD -MP -MT $@ -MF $(D)/$(F).d
	16
	17	%.o: %.c
	18	$(call quiet-command,$(CC) $(QEMU_CFLAGS) $(QEMU_INCLUDES) $(QEMU_DGFLAGS) $(CFLAGS) -c -o $@ $<," CC $(TARGET_DIR)$@")
	19
	20	%.o: %.S
	21	$(call quiet-command,$(CC) $(QEMU_CFLAGS) $(QEMU_INCLUDES) $(QEMU_DGFLAGS) $(CFLAGS) -c -o $@ $<," AS $(TARGET_DIR)$@")
	22
	23	%.o: %.m
	24	$(call quiet-command,$(CC) $(QEMU_CFLAGS) $(QEMU_INCLUDES) $(QEMU_DGFLAGS) $(CFLAGS) -c -o $@ $<," OBJC $(TARGET_DIR)$@")
	25
	26	LINK = $(call quiet-command,$(CC) $(QEMU_CFLAGS) $(CFLAGS) $(LDFLAGS) -o $@ $(1) $(LIBS)," LINK $(TARGET_DIR)$@")
	27
	28	%$(EXESUF): %.o
	29	$(call LINK,$^)
	30
	31	%.a:
	32	$(call quiet-command,rm -f $@ && $(AR) rcs $@ $^," AR $(TARGET_DIR)$@")
	33
	34	quiet-command = $(if $(V),$1,$(if $(2),@echo $2 && $1, @$1))
	35
	36	# cc-option
	37	# Usage: CFLAGS+=$(call cc-option, -falign-functions=0, -malign-functions=0)
	38
	39	cc-option = $(if $(shell $(CC) $1 $2 -S -o /dev/null -xc /dev/null \
	40	>/dev/null 2>&1 && echo OK), $2, $3)
	41
	42	VPATH_SUFFIXES = %.c %.h %.S %.m %.mak %.texi
	43	set-vpath = $(if $1,$(foreach PATTERN,$(VPATH_SUFFIXES),$(eval vpath $(PATTERN) $1)))
	44
	45	# find-in-path
	46	# Usage: $(call find-in-path, prog)
	47	# Looks in the PATH if the argument contains no slash, else only considers one
	48	# specific directory. Returns an # empty string if the program doesn't exist
	49	# there.
	50	find-in-path = $(if $(find-string /, $1), \
	51	$(wildcard $1), \
	52	$(wildcard $(patsubst %, %/$1, $(subst :, ,$(PATH)))))
	53
	54	# Generate timestamp files for .h include files
	55
	56	%.h: %.h-timestamp
	57	@test -f $@ \|\| cp $< $@
	58
	59	%.h-timestamp: %.mak
	60	$(call quiet-command, sh $(SRC_PATH)/scripts/create_config < $< > $@, " GEN $*.h")
	61	@cmp $@ $.h >/dev/null 2>&1 \|\| cp $@ $.h
	62
	63	# will delete the target of a rule if commands exit with a nonzero exit status
	64	.DELETE_ON_ERROR: