From: Anthony PERARD Date: Tue, 7 Sep 2021 07:14:32 +0000 (+0200) Subject: build: use if_changed on built_in.o X-Git-Tag: archive/raspbian/4.16.0+51-g0941d6cb-1+rpi1~2^2~42^2~237 X-Git-Url: https://dgit.raspbian.org/?a=commitdiff_plain;h=a4ebe125ee701a35b8c24b36503390970962c9ec;p=xen.git build: use if_changed on built_in.o In the case where $(obj-y) is empty, we also replace $(c_flags) by $(XEN_CFLAGS) to avoid generating an .%.d dependency file. This avoid make trying to include %.h file in the ld command if $(obj-y) isn't empty anymore on a second run. Signed-off-by: Anthony PERARD Acked-by: Jan Beulich --- diff --git a/xen/Rules.mk b/xen/Rules.mk index 3503f13235..a715a4525e 100644 --- a/xen/Rules.mk +++ b/xen/Rules.mk @@ -147,17 +147,22 @@ include $(BASEDIR)/arch/$(TARGET_ARCH)/Rules.mk c_flags += $(CFLAGS-y) a_flags += $(CFLAGS-y) $(AFLAGS-y) -built_in.o: $(obj-y) $(if $(strip $(lib-y)),lib.a) $(extra-y) -ifeq ($(strip $(obj-y)),) - $(CC) $(c_flags) -c -x c /dev/null -o $@ -else +quiet_cmd_cc_builtin = CC $@ +cmd_cc_builtin = \ + $(CC) $(XEN_CFLAGS) -c -x c /dev/null -o $@ + +quiet_cmd_ld_builtin = LD $@ ifeq ($(CONFIG_LTO),y) - $(LD_LTO) -r -o $@ $(filter $(obj-y),$^) +cmd_ld_builtin = \ + $(LD_LTO) -r -o $@ $(filter $(obj-y),$(real-prereqs)) else - $(LD) $(XEN_LDFLAGS) -r -o $@ $(filter $(obj-y),$^) -endif +cmd_ld_builtin = \ + $(LD) $(XEN_LDFLAGS) -r -o $@ $(filter $(obj-y),$(real-prereqs)) endif +built_in.o: $(obj-y) $(if $(strip $(lib-y)),lib.a) $(extra-y) FORCE + $(call if_changed,$(if $(strip $(obj-y)),ld_builtin,cc_builtin)) + lib.a: $(lib-y) FORCE $(call if_changed,ar)