ppc64: Makefile cleanup from Sam Ravnborg

arch/ppc64/boot/Makefile

@@ -23,92 +23,88 @@
 CROSS32_COMPILE =
 #CROSS32_COMPILE = /usr/local/ppc/bin/powerpc-linux-
 
-BOOTCC = $(CROSS32_COMPILE)gcc
-BOOTCFLAGS = $(HOSTCFLAGS) -I$(objtree)/include
-BOOTLD = $(CROSS32_COMPILE)ld
-BOOTAS = $(CROSS32_COMPILE)as
-BOOTAFLAGS = -D__ASSEMBLY__ $(HOSTCFLAGS)
-
-$(obj)/start.o:	$(obj)/start.c
-	$(BOOTCC) $(BOOTCFLAGS) -c -o $*.o $<
-
-$(obj)/main.o:	$(obj)/main.c
-	$(BOOTCC) $(BOOTCFLAGS) -c -o $*.o $<
-
-$(obj)/zlib.o:	$(obj)/zlib.c
-	$(BOOTCC) $(BOOTCFLAGS) -c -o $*.o $<
-
-$(obj)/imagesize.o:	$(obj)/imagesize.c
-	$(BOOTCC) $(BOOTCFLAGS) -c -o $*.o $<
-
-$(obj)/no_initrd.o:	$(obj)/no_initrd.c
-	$(BOOTCC) $(BOOTCFLAGS) -c -o $*.o $<
-
-$(obj)/crt0.o:	$(obj)/crt0.S
-	$(BOOTCC) $(BOOTAFLAGS) -traditional -c -o $*.o $<
-
-CFLAGS	= $(CPPFLAGS) -O -fno-builtin -DSTDC_HEADERS
-LD_ARGS = -Ttext 0x00400000 -e _start
-OBJCOPYFLAGS := -S -O binary
-
-OBJS = $(addprefix $(obj)/,crt0.o start.o main.o zlib.o image.o imagesize.o)
-
-ifeq ($(CONFIG_PPC_ISERIES),y)
-
-boot:	vmlinux.sm
-
-$(obj)/addSystemMap: $(obj)/addSystemMap.c
-	$(HOSTCC) $(HOSTCFLAGS) -o $@ $<
-
-$(obj)/vmlinux.sm: vmlinux $(obj)/addSystemMap
-	$(obj)/addSystemMap System.map vmlinux $(obj)/vmlinux.sm
-
-$(obj)/addRamDisk: $(obj)/addRamDisk.c
-	$(HOSTCC) $(HOSTCFLAGS) -o $@ $<
-
-$(obj)/vmlinux.initrd: vmlinux $(obj)/addRamDisk $(obj)/ramdisk.image.gz System.map
-	$(obj)/addRamDisk $(obj)/ramdisk.image.gz System.map vmlinux $(obj)/vmlinux.initrd
-
-$(obj)/vmlinux.sminitrd: $(obj)/vmlinux.sm $(obj)/addRamDisk $(obj)/ramdisk.image.gz System.map
-	$(obj)/addRamDisk $(obj)/ramdisk.image.gz System.map $(obj)/vmlinux.sm $(obj)/vmlinux.sminitrd
-
-else
-boot:	zImage
-endif
-
-$(obj)/piggyback: $(obj)/piggyback.c
-	$(HOSTCC) $(HOSTCFLAGS) -DKERNELBASE=$(KERNELBASE) -o $@ $<
-
-$(obj)/addnote: $(obj)/addnote.c
-	$(HOSTCC) $(HOSTCFLAGS) -o $@ $<
-
-$(obj)/image.o: $(obj)/piggyback $(obj)/vmlinux.gz
-	$(obj)/piggyback $(obj)/image < $(obj)/vmlinux.gz | $(BOOTAS) -o $@
-
-$(obj)/sysmap.o: $(obj)/piggyback System.map
-	$(obj)/piggyback $(obj)/sysmap < System.map | $(BOOTAS) -o $(obj)/sysmap.o
-
-$(obj)/initrd.o: $(obj)/ramdisk.image.gz $(obj)/piggyback
-	$(obj)/piggyback $(obj)/initrd < $(obj)/ramdisk.image.gz | $(BOOTAS) -o $(obj)/initrd.o
-
-$(obj)/zImage: $(OBJS) $(obj)/no_initrd.o $(obj)/addnote
-	$(BOOTLD) $(LD_ARGS) -T $(obj)/zImage.lds -o $@ $(OBJS) $(obj)/no_initrd.o
-	$(obj)/addnote $@
-
-$(obj)/zImage.initrd: $(OBJS) $(obj)/initrd.o $(obj)/addnote
-	$(BOOTLD) $(LD_ARGS) -T $(obj)/zImage.lds -o $@ $(OBJS) $(obj)/initrd.o
-	./addnote $@
-
-$(obj)/vmlinux.gz: vmlinux
-	$(OBJCOPY) $(OBJCOPYFLAGS) vmlinux $(obj)/vmlinux
-	ls -l $(obj)/vmlinux | awk '{printf "/* generated -- do not edit! */\nint uncompressed_size = %d;\n", $$5}' > $(obj)/imagesize.c
-	$(CROSS_COMPILE)nm -n vmlinux | tail -1 | awk '{printf "long vmlinux_end = 0x%s;\n", substr($$1,8)}' >> $(obj)/imagesize.c
-	gzip -vf9 $(obj)/vmlinux
-
-$(obj)/imagesize.c: $(obj)/vmlinux.gz
-
-clean:
-	@rm -f $(OBJS)
-	@rm -f $(addprefix $(obj)/,piggyback note addnote zImage \
-		zImage.initrd vmlinux.gz no_initrd.o imagesize.c addSystemMap \
-		vmlinux.sm addRamDisk vmlinux.initrd vmlinux.sminitrd)
+BOOTCC		:= $(CROSS32_COMPILE)gcc
+BOOTCFLAGS	:= $(HOSTCFLAGS) -Iinclude
+BOOTLD		:= $(CROSS32_COMPILE)ld
+BOOTAS		:= $(CROSS32_COMPILE)as
+BOOTAFLAGS	:= -D__ASSEMBLY__ $(HOSTCFLAGS)
+
+CFLAGS		:= $(CPPFLAGS) -O -fno-builtin -DSTDC_HEADERS
+LD_ARGS		:= -Ttext 0x00400000 -e _start
+OBJCOPYFLAGS	:= -S -O binary
+
+obj-boot := start.o main.o zlib.o imagesize.o no_initrd.o
+OBJS     := crt0.o start.o main.o zlib.o imagesize.o image.o
+obj-boot := $(addprefix $(obj)/,$(obj-boot))
+OBJS     := $(addprefix $(obj)/,$(OBJS))
+targets  += $(obj-boot) $(addprefix $(obj)/,image.c image.o)
+
+quiet_cmd_bootcc = BOOTCC  $@
+      cmd_bootcc = $(BOOTCC) -Wp,-MD,$(depfile) $(BOOTCFLAGS) -c -o $@ $<
+$(obj-boot): %.o: %.c FORCE
+	$(call if_changed_dep,bootcc)
+
+quiet_cmd_bootas = BOOTAS  $@
+      cmd_bootas = $(BOOTCC) -Wp,-MD,$(depfile) $(BOOTAFLAGS) -traditional \
+						-c -o $@ $<
+$(obj)/crt0.o: %.o: %.S FORCE
+	$(call if_changed_dep,bootas)
+
+host-progs		:= piggyback addnote addSystemMap addRamDisk
+HOSTCFLAGS_piggyback.o	:= -DKERNELBASE=$(KERNELBASE)
+EXTRA_TARGETS 		+= zImage zImage.initrd vmlinux.bin vmlinux.gz \
+			   vmlinux.sm vmlinux.initrd vmlinux.sminitrd \
+			   sysmap.o initrd.o
+
+quiet_cmd_sysmap = SYSMAP   $@
+      cmd_sysmap = $(obj)/addSystemMap System.map $< $@
+$(obj)/vmlinux.sm: vmlinux $(obj)/addSystemMap System.map FORCE
+	$(call if_changed,sysmap)
+
+quiet_cmd_ramdisk = RAMDISK $@
+      cmd_ramdisk = $(obj)/addRamDisk $(obj)/ramdisk.image.gz System.map $< $@
+$(obj)/vmlinux.initrd: vmlinux $(obj)/addRamDisk $(obj)/ramdisk.image.gz System.map FORCE
+	$(call if_changed,ramdisk)
+
+$(obj)/vmlinux.sminitrd: $(obj)/vmlinux.sm $(obj)/addRamDisk $(obj)/ramdisk.image.gz FORCE
+	$(call if_changed,ramdisk)
+
+
+quiet_cmd_piggy = PIGGY   $@
+      cmd_piggy = $(obj)/piggyback $(@:.o=) < $< | $(BOOTAS) -o $@
+
+$(obj)/image.o: $(obj)/vmlinux.gz $(obj)/piggyback FORCE
+	$(call if_changed,piggy)
+
+$(obj)/sysmap.o: System.map $(obj)/piggyback FORCE
+	$(call if_changed,piggy)
+
+$(obj)/initrd.o: $(obj)/ramdisk.image.gz $(obj)/piggyback FORCE
+	$(call if_changed,piggy)
+
+quiet_cmd_addnote = ADDNOTE $@ 
+      cmd_addnote = $(BOOTLD) $(LD_ARGS) -T $(obj)/zImage.lds -o $@ $(OBJS) $<\
+		    && $(obj)/addnote $@
+
+$(obj)/zImage: $(obj)/no_initrd.o $(OBJS) $(obj)/addnote FORCE
+	$(call if_changed,addnote)
+
+$(obj)/zImage.initrd: $(obj)/initrd.o $(OBJS) $(obj)/addnote FORCE
+	$(call if_changed,addnote)
+
+$(obj)/vmlinux.bin: vmlinux FORCE
+	$(call if_changed,objcopy)
+
+$(obj)/vmlinux.gz: $(obj)/vmlinux.bin FORCE
+	$(call if_changed,gzip)
+
+$(obj)/imagesize.c: vmlinux
+	@echo Generating $@
+	ls -l vmlinux | \
+	awk '{printf "/* generated -- do not edit! */\n" \
+		"int uncompressed_size = %d;\n", $$5}' > $(obj)/imagesize.c
+	$(CROSS_COMPILE)nm -n vmlinux | tail -1 | \
+	awk '{printf "long vmlinux_end = 0x%s;\n", substr($$1,8)}' \
+		>> $(obj)/imagesize.c
+
+clean-files :=  $(targets)