kbuild: change out-of-tree build

[karo-tx-uboot.git] / arch / sandbox / cpu / Makefile

diff --git a/arch/sandbox/cpu/Makefile b/arch/sandbox/cpu/Makefile
index e386867fe6fb14dc68568e8f15db42e28915d835..c5f5426b05f2041e5d15e14ae45ffb244d0b56f5 100644 (file)
--- a/arch/sandbox/cpu/Makefile
+++ b/arch/sandbox/cpu/Makefile
@@ -7,29 +7,10 @@
 # SPDX-License-Identifier:     GPL-2.0+
 #
 
-include $(TOPDIR)/config.mk
-
-LIB    = $(obj)lib$(CPU).o
-
-COBJS  := cpu.o os.o start.o state.o
-
-SRCS   := $(COBJS:.o=.c)
-OBJS   := $(addprefix $(obj),$(COBJS))
-
-all:   $(obj).depend $(LIB)
-
-$(LIB):        $(OBJS)
-       $(call cmd_link_o_target, $(OBJS))
+obj-y  := cpu.o os.o start.o state.o
 
 # os.c is build in the system environment, so needs standard includes
-$(obj)os.o: ALL_CFLAGS := $(filter-out -nostdinc,$(ALL_CFLAGS))
-$(obj).depend.os: CPPFLAGS := $(filter-out -nostdinc,$(CPPFLAGS))
-
-#########################################################################
-
-# defines $(obj).depend target
-include $(SRCTREE)/rules.mk
-
-sinclude $(obj).depend
-
-#########################################################################
+$(obj)/os.o: CFLAGS := $(filter-out -nostdinc,\
+       $(patsubst -I%,-idirafter%,$(CFLAGS)))
+$(obj)/.depend.os: CPPFLAGS := $(filter-out -nostdinc,\
+       $(patsubst -I%,-idirafter%,$(CPPFLAGS)))