PPC32: Further makefile updates from Sam Ravnborg.

arch/ppc/boot/openfirmware/Makefile

@@ -10,36 +10,34 @@
 #	Merged 'chrp' and 'pmac' into 'openfirmware', and cleaned up the
 #	rules.
 
-clean-files := note coffboot coffboot.initrd
+zImage.initrd znetboot.initrd: del-ramdisk-sec	:= -R .ramdisk
+zImage.initrd znetboot.initrd: initrd		:= .initrd
 
-boot: zImage
 
-boot := arch/ppc/boot
-common := $(boot)/common
-utils := $(boot)/utils
-bootlib := $(boot)/lib
-of1275 := $(boot)/of1275
-images := $(boot)/images
+boot	:= arch/ppc/boot
+common	:= $(boot)/common
+utils	:= $(boot)/utils
+bootlib	:= $(boot)/lib
+of1275	:= $(boot)/of1275
+images	:= $(boot)/images
 
-OBJCOPY_ARGS = -O aixcoff-rs6000 -R .stab -R .stabstr -R .comment
-COFF_LD_ARGS = -T $(boot)/ld.script -e _start -Ttext 0x00700000 -Bstatic
-CHRP_LD_ARGS = -T $(boot)/ld.script -e _start -Ttext 0x00800000
-NEWWORLD_LD_ARGS = -T $(boot)/ld.script -e _start -Ttext 0x01000000
+OBJCOPY_ARGS	:= -O aixcoff-rs6000 -R .stab -R .stabstr -R .comment
+COFF_LD_ARGS	:= -T $(boot)/ld.script -e _start -Ttext 0x00700000 -Bstatic
+CHRP_LD_ARGS	:= -T $(boot)/ld.script -e _start -Ttext 0x00800000
+NEWWORLD_LD_ARGS:= -T $(boot)/ld.script -e _start -Ttext 0x01000000
 
 COMMONOBJS	:= start.o misc.o common.o
 COFFOBJS	:= coffcrt0.o $(COMMONOBJS) coffmain.o
-CHRPOBJS	:= crt0.o $(COMMONOBJS) chrpmain.o
-NEWWORLDOBJS	:= crt0.o $(COMMONOBJS) newworldmain.o
+CHRPOBJS	:= crt0.o     $(COMMONOBJS) chrpmain.o
+NEWWORLDOBJS	:= crt0.o     $(COMMONOBJS) newworldmain.o
 
-EXTRA_TARGETS := $(COFFOBJS) $(CHRPOBJS) $(NEWWORLDOBJS)
+targets 	:= $(COFFOBJS) $(CHRPOBJS) $(NEWWORLDOBJS) dummy.o
 COFFOBJS	:= $(addprefix $(obj)/, $(COFFOBJS))
 CHRPOBJS	:= $(addprefix $(obj)/, $(CHRPOBJS))
 NEWWORLDOBJS	:= $(addprefix $(obj)/, $(NEWWORLDOBJS))
 
-LIBS = lib/lib.a $(bootlib)/lib.a $(of1275)/lib.a $(common)/lib.a
+LIBS		:= lib/lib.a $(bootlib)/lib.a $(of1275)/lib.a $(common)/lib.a
 
-ADDNOTE := $(utils)/addnote
-MKNOTE := $(utils)/mknote
 HACKCOFF := $(utils)/hack-coff
 
 ifdef CONFIG_SMP
@@ -49,108 +47,136 @@ ifdef CONFIG_PPC64BRIDGE
 END += .64
 endif
 
-TFTPIMAGE=/tftpboot/zImage.
 
-$(obj)/dummy.o: $(common)/dummy.c
-	$(CC) -c -o $@ $(common)/dummy.c
+$(images)/ramdisk.image.gz:
+	@echo '  MISSING $@'
+	@echo '          RAM disk image must be provided seperatly'
+	@/bin/false
 
-$(obj)/image.o: $(images)/vmlinux.gz $(obj)/dummy.o
-	$(OBJCOPY) $(obj)/dummy.o $@ -R .comment \
-		--add-section=.image=$(images)/vmlinux.gz \
-		--set-section-flags=.image=contents,alloc,load,readonly,data
-ifdef CONFIG_XMON
-	$(OBJCOPY) $@ $@ \
-		--add-section=.sysmap=$(TOPDIR)/System.map \
-		--set-section-flags=.sysmap=contents,alloc,load,readonly,data
-endif
+objcpxmon-$(CONFIG_XMON) := --add-section=.sysmap=System.map \
+	--set-section-flags=.sysmap=contents,alloc,load,readonly,data
+quiet_cmd_genimage = GEN     $@
+      cmd_genimage = $(OBJCOPY) -R .comment       \
+	--add-section=.image=$(images)/vmlinux.gz \
+	--set-section-flags=.image=contents,alloc,load,readonly,data \
+	$(objcpxmon-y) $< $@
+
+targets += image.o
+$(obj)/image.o: $(obj)/dummy.o $(images)/vmlinux.gz FORCE
+	$(call if_changed,genimage)
 
 # Place the ramdisk in the initrd image.
-$(obj)/image-initrd.o: $(obj)/image.o $(images)/ramdisk.image.gz
-	$(OBJCOPY) $(obj)/image.o $@ \
-		--add-section=.ramdisk=$(images)/ramdisk.image.gz \
-		--set-section-flags=.ramdisk=contents,alloc,load,readonly,data
+quiet_cmd_genimage-initrd = GEN     $@
+      cmd_genimage-initrd = $(OBJCOPY) $< $@ \
+	--add-section=.ramdisk=$(images)/ramdisk.image.gz \
+	--set-section-flags=.ramdisk=contents,alloc,load,readonly,data
+targets += image.initrd.o
+$(obj)/image.initrd.o: $(obj)/image.o $(images)/ramdisk.image.gz FORCE
+	$(call if_changed,genimage-initrd)
 
 # Create the note section for New-World PowerMacs.
-$(obj)/note: $(MKNOTE)
-	$(MKNOTE) > $(obj)/note
-
-znetboot: $(images)/vmlinux.coff $(images)/vmlinux.elf-pmac $(images)/zImage.chrp
-	cp $(images)/vmlinux.coff $(TFTPIMAGE).pmac$(END)
-	cp $(images)/vmlinux.elf-pmac $(TFTPIMAGE).pmac$(END)elf
-	cp $(images)/zImage.chrp $(TFTPIMAGE).chrp$(END)
-
-znetboot.initrd: $(images)/vmlinux.initrd.coff \
-		$(images)/vmlinux.initrd.elf-pmac \
-		$(images)/zImage.initrd.chrp
-	cp $(images)/vmlinux.initrd.coff $(TFTPIMAGE).pmac$(END)
-	cp $(images)/vmlinux.initrd.elf-pmac $(TFTPIMAGE).pmac$(END).elf
-	cp $(images)/zImage.initrd.chrp $(TFTPIMAGE).chrp$(END)
+quit_cmd_mknote  = MKNOTE  $@
+     cmd_mknote  = $(utils)/mknote > $@
+targets		+= note
+$(obj)/note: $(utils)/mknote FORCE
+	$(call if_changed,mknote)
+
+
+$(obj)/coffcrt0.o: EXTRA_AFLAGS := -traditional -DXCOFF
+$(obj)/crt0.o:     EXTRA_AFLAGS := -traditional
+targets += coffcrt0.o crt0.o
+$(obj)/coffcrt0.o $(obj)/crt0.o: $(common)/crt0.S FORCE
+	$(call if_changed_dep,as_o_S)
+
+quiet_cmd_gencoffb = COFF    $@
+      cmd_gencoffb = $(LD) -o $@ $(COFF_LD_ARGS) $(filter-out FORCE,$^) && \
+                     $(OBJCOPY) $@ $@ -R .comment $(del-ramdisk-sec)
+targets += coffboot
+$(obj)/coffboot: $(COFFOBJS) $(obj)/image.o $(LIBS) FORCE
+	$(call if_changed,gencoffb)
+targets += coffboot.initrd
+$(obj)/coffboot.initrd: $(COFFOBJS) $(obj)/image.initrd.o $(LIBS) FORCE
+	$(call if_changed,gencoffb)
+
+
+quiet_cmd_gen-coff = COFF    $@
+      cmd_gen-coff = $(OBJCOPY) $(OBJCOPY_ARGS) $< $@ && \
+			$(HACKCOFF) $@ && \
+			ln -sf $(notdir $@) $(images)/zImage$(initrd).pmac
+
+$(images)/vmlinux.coff: $(obj)/coffboot
+	$(call cmd,gen-coff)
+
+$(images)/vmlinux.initrd.coff: $(obj)/coffboot.initrd
+	$(call cmd,gen-coff)
+
+quiet_cmd_gen-elf-pmac = ELF     $@
+      cmd_gen-elf-pmac = $(LD) $(NEWWORLD_LD_ARGS) -o $@ \
+				$(NEWWORLDOBJS) $(LIBS) $< && \
+			$(OBJCOPY) $@ $@ --add-section=.note=$(obj)/note \
+					 -R .comment $(del-ramdisk-sec)
+
+$(images)/vmlinux.elf-pmac: $(obj)/image.o $(NEWWORLDOBJS) $(LIBS) $(obj)/note
+	$(call cmd,gen-elf-pmac)
+$(images)/vmlinux.initrd.elf-pmac: $(obj)/image.initrd.o $(NEWWORLDOBJS) \
+				   $(LIBS) $(obj)/note
+	$(call cmd,gen-elf-pmac)
+
+quiet_cmd_gen-chrp = CHRP    $@
+      cmd_gen-chrp = $(LD) $(CHRP_LD_ARGS) -o $@ $^ && \
+			$(OBJCOPY) $@ $@ -R .comment $(del-ramdisk-sec)
 
+$(images)/zImage.chrp: $(CHRPOBJS) $(obj)/image.o $(LIBS)
+	$(call cmd,gen-chrp)
+$(images)/zImage.initrd.chrp: $(CHRPOBJS) $(obj)/image.initrd.o $(LIBS)
+	$(call cmd,gen-chrp)
+
+quiet_cmd_addnote = ADDNOTE $@
+      cmd_addnote = cat $< > $@ && $(utils)/addnote $@
+$(images)/zImage.chrp-rs6k $(images)/zImage.initrd.chrp-rs6k: \
+	%-rs6k: %
+	$(call cmd,addnote)
+
+quiet_cmd_gen-miboot = GEN     $@
+      cmd_gen-miboot = $(OBJCOPY) $(OBJCOPY_ARGS) \
+		       --add-section=$1=$(word 2, $^) $< $@
 $(images)/miboot.image: $(obj)/dummy.o $(images)/vmlinux.gz
-	$(OBJCOPY) $(OBJCOPY_ARGS) --add-section=image=$(images)/vmlinux.gz \
-		$(obj)/dummy.o $@
+	$(call cmd,gen-miboot,image)
 
 $(images)/miboot.initrd.image: $(images)/miboot.image $(images)/ramdisk.image.gz
-	$(OBJCOPY) $(OBJCOPY_ARGS) \
-		--add-section=initrd=$(images)/ramdisk.image.gz \
-		$(images)/miboot.image $@
-
-$(obj)/coffcrt0.o: $(common)/crt0.S
-	$(CC) $(AFLAGS) -DXCOFF -traditional -c -o $@ $(common)/crt0.S
-
-$(obj)/crt0.o: $(common)/crt0.S
-	$(CC) $(AFLAGS) -traditional -c -o $@ $(common)/crt0.S
-
-$(obj)/coffboot: $(COFFOBJS) $(obj)/image.o $(LIBS)
-	$(LD) -o $@ $(COFF_LD_ARGS) $^
-	$(OBJCOPY) $@ $@ -R .comment -R .ramdisk
-
-$(obj)/coffboot.initrd: $(COFFOBJS) $(obj)/image-initrd.o $(LIBS)
-	$(LD) -o $@ $(COFF_LD_ARGS) $^
-	$(OBJCOPY) $@ $@ -R .comment
-
-$(images)/vmlinux.coff: $(obj)/coffboot $(HACKCOFF)
-	$(OBJCOPY) $(OBJCOPY_ARGS) $(obj)/coffboot $@
-	$(HACKCOFF) $@
-	ln -sf vmlinux.coff $(images)/zImage.pmac
-
-$(images)/vmlinux.initrd.coff: $(obj)/coffboot.initrd $(HACKCOFF)
-	$(OBJCOPY) $(OBJCOPY_ARGS) $(obj)/coffboot.initrd $@
-	$(HACKCOFF) $@
-	ln -sf vmlinux.initrd.coff $(images)/zImage.initrd.pmac
-
-$(images)/vmlinux.elf-pmac: $(NEWWORLDOBJS) $(LIBS) $(obj)/image.o $(obj)/note
-	$(LD) $(NEWWORLD_LD_ARGS) -o $@ $(NEWWORLDOBJS) $(LIBS) $(obj)/image.o
-	$(OBJCOPY) $@ $@ \
-		--add-section=.note=$(obj)/note -R .comment -R .ramdisk
-
-$(images)/vmlinux.initrd.elf-pmac: $(NEWWORLDOBJS) $(LIBS) \
-		$(obj)/image-initrd.o $(obj)/note
-	$(LD) $(NEWWORLD_LD_ARGS) -o $@ $(NEWWORLDOBJS) $(LIBS) \
-		$(obj)/image-initrd.o
-	$(OBJCOPY) $@ $@ \
-		--add-section=.note=$(obj)/note -R .comment
-
-$(images)/zImage.chrp: $(CHRPOBJS) $(obj)/image.o $(LIBS)
-	$(LD) $(CHRP_LD_ARGS) -o $@ $^
-	$(OBJCOPY) $@ $@ -R .comment -R .ramdisk
-
-$(images)/zImage.initrd.chrp: $(CHRPOBJS) $(obj)/image-initrd.o $(LIBS)
-	$(LD) $(CHRP_LD_ARGS) -o $@ $^
-	$(OBJCOPY) $@ $@ -R .comment
-
-$(images)/zImage.chrp-rs6k: $(images)/zImage.chrp $(ADDNOTE)
-	cp $(images)/zImage.chrp $@
-	$(ADDNOTE) $@
-
-$(images)/zImage.initrd.chrp-rs6k: $(images)/zImage.initrd.chrp $(ADDNOTE)
-	cp $(images)/zImage.initrd.chrp $@
-	$(ADDNOTE) $@
-
-zImage: $(images)/vmlinux.coff $(images)/vmlinux.elf-pmac \
-		$(images)/zImage.chrp $(images)/zImage.chrp-rs6k \
-		$(images)/miboot.image
+	$(call cmd,gen-miboot,initrd)
+
+# The targets used on the make command-line
+
+.PHONY: zImage zImage.initrd
+zImage:		 $(images)/vmlinux.coff 	\
+		 $(images)/vmlinux.elf-pmac	\
+		 $(images)/zImage.chrp		\
+		 $(images)/zImage.chrp-rs6k	\
+		 $(images)/miboot.image
+	@echo '  kernel: $@ is ready ($<)'
+zImage.initrd:	 $(images)/vmlinux.initrd.coff 		\
+		 $(images)/vmlinux.initrd.elf-pmac	\
+		 $(images)/zImage.initrd.chrp		\
+		 $(images)/zImage.initrd.chrp-rs6k	\
+		 $(images)/miboot.initrd.image
+	@echo '  kernel: $@ is ready ($<)'
+
+TFTPIMAGE	:= /tftpboot/zImage.
+
+.PHONY: znetboot znetboot.initrd
+znetboot:	$(images)/vmlinux.coff		\
+		$(images)/vmlinux.elf-pmac	\
+		$(images)/zImage.chrp
+	cp $(images)/vmlinux.coff     $(TFTPIMAGE).pmac$(END)
+	cp $(images)/vmlinux.elf-pmac $(TFTPIMAGE).pmac$(END).elf
+	cp $(images)/zImage.chrp      $(TFTPIMAGE).chrp$(END)
+	@echo '  kernel: $@ is ready ($<)'
+znetboot.initrd:$(images)/vmlinux.initrd.coff		\
+		$(images)/vmlinux.initrd.elf-pmac	\
+		$(images)/zImage.initrd.chrp
+	cp $(images)/vmlinux.initrd.coff     $(TFTPIMAGE).pmac$(END)
+	cp $(images)/vmlinux.initrd.elf-pmac $(TFTPIMAGE).pmac$(END).elf
+	cp $(images)/zImage.initrd.chrp      $(TFTPIMAGE).chrp$(END)
+	@echo '  kernel: $@ is ready ($<)'
 
-zImage.initrd: $(images)/vmlinux.initrd.coff $(images)/vmlinux.initrd.elf-pmac\
-		$(images)/zImage.initrd.chrp $(images)/zImage.initrd.chrp-rs6k\
-		$(images)/miboot.initrd.image

arch/ppc/boot/prep/Makefile

@@ -45,7 +45,7 @@ zImage.initrd: initrd := .initrd
 zImage.initrd: $(images)/zImage.initrd.prep
 	@echo '  kernel: $@ is ready ($<)'
 
-mages)/ramdisk.image.gz:
+$(images)/ramdisk.image.gz:
 	@echo '  MISSING $@'
 	@echo '          RAM disk image must be provided separatly'
 	@/bin/false
@@ -68,20 +68,28 @@ $(obj)/image.initrd.o: $(obj)/dummy.o $(images)/vmlinux.gz $(images)/ramdisk.ima
 
 LDFLAGS_zImage.bin		:= -Ttext 0x00800000 -Bstatic -T
 LDFLAGS_zImage.initrd.bin	:= -Ttext 0x00800000 -Bstatic -T
-targets				+= zImage.bin zImage.initrd.bin
-$(obj)/zImage$(initrd).bin: $(boot)/ld.script $(OBJS) $(obj)/image.o $(LIBS)
+targets += zImage.bin
+$(obj)/zImage.bin: $(boot)/ld.script $(OBJS) $(obj)/image.o $(LIBS)
+	$(call if_changed,ld)
+targets += zImage.initrd.bin
+$(obj)/zImage.initrd.bin: $(boot)/ld.script $(OBJS) $(obj)/image.initrd.o $(LIBS)
 	$(call if_changed,ld)
 
 OBJCOPYFLAGS_zImage		:= -R .comment -R .stab -R .stabstr
 OBJCOPYFLAGS_zImage.initrd	:= -R .comment -R .stab -R .stabstr
-targets				+= zImage zImage.initrd
-$(obj)/zImage$(initrd): %: %.bin FORCE
+targets += zImage
+$(obj)/zImage: %: %.bin FORCE
+	$(call if_changed,objcopy)
+targets += zImage.initrd
+$(obj)/zImage.initrd: %: %.bin FORCE
 	$(call if_changed,objcopy)
 
 quiet_cmd_mkprep = MKPREP  $@
       cmd_mkprep = $(utils)/mkprep -pbp $< $@
 
-$(images)/zImage$(initrd).prep: $(obj)/zImage$(initrd) $(utils)/mkprep FORCE
+$(images)/zImage.prep: $(obj)/zImage $(utils)/mkprep
+	$(call cmd,mkprep)
+$(images)/zImage.initrd.prep: $(obj)/zImage.initrd $(utils)/mkprep
 	$(call cmd,mkprep)
 
 #
@@ -90,5 +98,11 @@ $(images)/zImage$(initrd).prep: $(obj)/zImage$(initrd) $(utils)/mkprep FORCE
 floppy: zImage
 	dd if=$(images)/zImage.prep of=/dev/fd0H1440 bs=64b
 
-znetboot.initrd : zImage$(initrd)
-	cp $(images)/zImage$(initrd).prep $(TFTPIMAGE)
+znetboot : zImage
+	cp $(images)/zImage.prep $(TFTPIMAGE)
+	@echo '  kernel: $@ is ready ($<)'
+
+znetboot.initrd : zImage.initrd
+	cp $(images)/zImage.initrd.prep $(TFTPIMAGE)
+	@echo '  kernel: $@ is ready ($<)'
+

arch/ppc/boot/simple/Makefile

@@ -160,8 +160,7 @@ MKBUGBOOT			:= $(utils)/mkbugboot
 MKPREP				:= $(utils)/mkprep
 MKTREE				:= $(utils)/mktree
 
-$(obj)/dummy.o: $(common)/dummy.c
-	$(CC) -c -o $@ $(common)/dummy.c
+targets := dummy.o
 
 $(obj)/zvmlinux: $(OBJS) $(LIBS) $(boot)/ld.script $(images)/vmlinux.gz \
 		$(obj)/dummy.o

arch/ppc/boot/simple/dummy.c

+int main(void)
+{
+	return 0;
+}