[ARM] makefile cleanup

Added prerequisite FORCE in several rules, now kbuild build a kernel even the second time you try. Corrected several errors to avoid errornous rebuild of targets in arch/arm Lot's of trivial clean-up

[ARM] makefile cleanup
Added prerequisite FORCE in several rules, now kbuild build a kernel even the second time you try. Corrected several errors to avoid errornous rebuild of targets in arch/arm Lot's of trivial clean-up
452e9f81 · Sam Ravnborg · 7e796024 · 452e9f81 · 452e9f81 · 452e9f81
Commit 452e9f81 authored Nov 11, 2002 by Sam Ravnborg
5 changed files
--- a/arch/arm/Makefile
+++ b/arch/arm/Makefile
@@ -34,14 +34,12 @@ apcs-$(CONFIG_CPU_26)		:=-mapcs-26 -mcpu=arm3
 # Note that GCC is lame - it doesn't numerically define an
 # architecture version macro, but instead defines a whole
 # series of macros.
-arch-y				:=
 arch-$(CONFIG_CPU_32v3)		:=-D__LINUX_ARM_ARCH__=3 -march=armv3
 arch-$(CONFIG_CPU_32v4)		:=-D__LINUX_ARM_ARCH__=4 -march=armv4
 arch-$(CONFIG_CPU_32v5)		:=-D__LINUX_ARM_ARCH__=5 -march=armv5
 arch-$(CONFIG_CPU_XSCALE)	:=-D__LINUX_ARM_ARCH__=5 -march=armv4 -Wa,-mxscale #-march=armv5te

 # This selects how we optimise for the processor.
-tune-y				:=
 tune-$(CONFIG_CPU_ARM610)	:=-mtune=arm610
 tune-$(CONFIG_CPU_ARM710)	:=-mtune=arm710
 tune-$(CONFIG_CPU_ARM720T)	:=-mtune=arm7tdmi
@@ -58,123 +56,67 @@ CFLAGS_BOOT	:=$(apcs-y) $(arch-y) $(tune-y) -mshort-load-bytes -msoft-float -Wa,
 CFLAGS		+=$(apcs-y) $(arch-y) $(tune-y) -mshort-load-bytes -msoft-float -Wa,-mno-fpu
 AFLAGS		+=$(apcs-y) $(arch-y) -mno-fpu -msoft-float -Wa,-mno-fpu

+#Default value
+DATAADDR	:= .
+
 ifeq ($(CONFIG_CPU_26),y)
 PROCESSOR	:= armo
 HEAD		:= arch/arm/mach-arc/head.o arch/arm/kernel/init_task.o
 LDFLAGS_BLOB	+= --oformat elf26-littlearm
  ifeq ($(CONFIG_ROM_KERNEL),y)
-    DATAADDR	 = 0x02080000
-    TEXTADDR	 = 0x03800000
+    DATAADDR	 := 0x02080000
+    textaddr-y	 := 0x03800000
  else
-    TEXTADDR	 = 0x02080000
+    textaddr-y	 := 0x02080000
  endif
 endif

 ifeq ($(CONFIG_CPU_32),y)
-PROCESSOR	 = armv
+PROCESSOR	:= armv
 HEAD		:= arch/arm/kernel/head.o arch/arm/kernel/init_task.o
-TEXTADDR	 = 0xC0008000
 LDFLAGS_BLOB	+= --oformat elf32-littlearm
-endif
-
-ifeq ($(CONFIG_ARCH_ARCA5K),y)
-MACHINE		 = arc
-endif
-
-ifeq ($(CONFIG_ARCH_RPC),y)
-MACHINE		 = rpc
-endif
-
-ifeq ($(CONFIG_ARCH_EBSA110),y)
-MACHINE		 = ebsa110
-endif
-
-ifeq ($(CONFIG_ARCH_CLPS7500),y)
-MACHINE		 = clps7500
-INCDIR		 = cl7500
-endif
-
-ifeq ($(CONFIG_FOOTBRIDGE),y)
-MACHINE		 = footbridge
-INCDIR		 = ebsa285
-endif
-
-ifeq ($(CONFIG_ARCH_CO285),y)
-TEXTADDR	 = 0x60008000
-MACHINE		 = footbridge
-INCDIR		 = ebsa285
-endif
-
-ifeq ($(CONFIG_ARCH_FTVPCI),y)
-MACHINE		 = ftvpci
-INCDIR		 = nexuspci
-endif
-
-ifeq ($(CONFIG_ARCH_TBOX),y)
-MACHINE		 = tbox
-endif
-
-ifeq ($(CONFIG_ARCH_SHARK),y)
-MACHINE		 = shark
-endif
-
+textaddr-y	:= 0xC0008000
+endif
+
+ machine-$(CONFIG_ARCH_ARCA5K)	   := arc
+ machine-$(CONFIG_ARCH_RPC)	   := rpc
+ machine-$(CONFIG_ARCH_EBSA110)	   := ebsa110
+ machine-$(CONFIG_ARCH_CLPS7500)   := clps7500
+  incdir-$(CONFIG_ARCH_CLPS7500)   := cl7500
+ machine-$(CONFIG_FOOTBRIDGE)	   := footbridge
+  incdir-$(CONFIG_FOOTBRIDGE)	   := ebsa285
+textaddr-$(CONFIG_ARCH_CO285)	   := 0x60008000
+ machine-$(CONFIG_ARCH_CO285)	   := footbridge
+  incdir-$(CONFIG_ARCH_CO285)	   := ebsa285
+ machine-$(CONFIG_ARCH_FTVPCI)	   := ftvpci
+  incdir-$(CONFIG_ARCH_FTVPCI)	   := nexuspci
+ machine-$(CONFIG_ARCH_TBOX)	   := tbox
+ machine-$(CONFIG_ARCH_SHARK)	   := shark
+ machine-$(CONFIG_ARCH_SA1100)	   := sa1100
 ifeq ($(CONFIG_ARCH_SA1100),y)
-ifeq ($(CONFIG_SA1111),y)
 # SA1111 DMA bug: we don't want the kernel to live in precious DMA-able memory
-TEXTADDR	 = 0xc0208000
-endif
-MACHINE		 = sa1100
-endif
-
-ifeq ($(CONFIG_ARCH_PXA),y)
-MACHINE		 = pxa
-endif
-
-ifeq ($(CONFIG_ARCH_L7200),y)
-MACHINE		 = l7200
-endif
-
-ifeq ($(CONFIG_ARCH_INTEGRATOR),y)
-MACHINE		 = integrator
-endif
-
-ifeq ($(CONFIG_ARCH_CAMELOT),y)
-MACHINE          = epxa10db
-endif
-
-ifeq ($(CONFIG_ARCH_CLPS711X),y)
-TEXTADDR	 = 0xc0028000
-MACHINE		 = clps711x
-endif
-
-ifeq ($(CONFIG_ARCH_FORTUNET),y)
-TEXTADDR	 = 0xc0008000
-endif
-
-ifeq ($(CONFIG_ARCH_ANAKIN),y)
-MACHINE		 = anakin
-endif
-
-ifeq ($(CONFIG_ARCH_IOP310),y)
-MACHINE		 = iop310
-endif
-
-ifeq ($(CONFIG_ARCH_ADIFCC),y)
-MACHINE		= adifcc
-endif
+textaddr-$(CONFIG_SA1111)	   := 0xc0208000
+endif
+ machine-$(CONFIG_ARCH_PXA)	   := pxa
+ machine-$(CONFIG_ARCH_L7200)	   := l7200
+ machine-$(CONFIG_ARCH_INTEGRATOR) := integrator
+ machine-$(CONFIG_ARCH_CAMELOT)	   := epxa10db
+textaddr-$(CONFIG_ARCH_CLPS711X)   := 0xc0028000
+ machine-$(CONFIG_ARCH_CLPS711X)   := clps711x
+textaddr-$(CONFIG_ARCH_FORTUNET)   := 0xc0008000
+ machine-$(CONFIG_ARCH_ANAKIN)	   := anakin
+ machine-$(CONFIG_ARCH_IOP310)	   := iop310
+ machine-$(CONFIG_ARCH_ADIFCC)	   := adifcc
+
+MACHINE  := $(machine-y)
+TEXTADDR := $(textaddr-y)
+ifeq ($(incdir-y),)
+incdir-y := $(MACHINE)
+endif
+INCDIR   := $(incdir-y)
  
 export	MACHINE PROCESSOR TEXTADDR GZFLAGS CFLAGS_BOOT

-# Only set INCDIR if its not already defined above
-# Grr, ?= doesn't work as all the other assignment operators do.  Make bug?
-ifeq ($(origin INCDIR), undefined)
-INCDIR		:=$(MACHINE)
-endif
-
-ifeq ($(origin DATAADDR), undefined)
-DATAADDR	:= .
-endif
-
 # Do we have FASTFPE?
 FASTFPE		:=arch/arm/fastfpe
 ifeq ($(FASTFPE),$(wildcard $(FASTFPE)))
@@ -194,7 +136,10 @@ drivers-$(CONFIG_ARCH_L7200)	+= drivers/acorn/char/

 libs-y				+= arch/arm/lib/

-makeboot = $(call descend,arch/arm/boot,$(1))
+# Default target when executing plain make
+all: zImage
+
+makeboot =$(Q)$(MAKE) -f scripts/Makefile.build obj=arch/arm/boot $(1)

 #	Update machine arch and proc symlinks if something which affects
 #	them changed.  We use .arch and .proc to indicate when they were
@@ -217,13 +162,17 @@ prepare: maketools
 .PHONY: maketools FORCE
 maketools: include/asm-arm/.arch include/asm-arm/.proc \
 	   include/asm-arm/constants.h include/linux/version.h FORCE
-	+@$(call descend,arch/arm/tools, include/asm-arm/mach-types.h)
+	$(Q)$(MAKE) -f scripts/Makefile.build obj=arch/arm/tools include/asm-arm/mach-types.h
+
+# Convert bzImage to zImage
+bzImage: vmlinux
+	$(call makeboot,arch/arm/boot/zImage)

 zImage Image bootpImage: vmlinux
-	+@$(call makeboot,arch/arm/boot/$@)
+	$(call makeboot,arch/arm/boot/$@)

-bzImage zinstall install: vmlinux
-	+@$(call makeboot,$@)
+zinstall install: vmlinux
+	$(call makeboot,$@)

 MRPROPER_FILES	+= \
 	include/asm-arm/arch include/asm-arm/.arch \
@@ -233,15 +182,15 @@ MRPROPER_FILES	+= \

 # We use MRPROPER_FILES and CLEAN_FILES now
 archmrproper:
-archclean: FORCE
-	+@$(call makeboot,clean)
+archclean:
+	$(Q)$(MAKE) -f scripts/Makefile.clean obj=arch/arm/boot

 # My testing targets (that short circuit a few dependencies)
-zImg:;	+@$(call makeboot, zImage)
-Img:;	+@$(call makeboot, Image)
-i:;	+@$(call makeboot, install)
-zi:;	+@$(call makeboot, zinstall)
-bp:;	+@$(call makeboot, bootpImage)
+zImg:;	$(call makeboot, arch/arm/boot/zImage)
+Img:;	$(call makeboot, arch/arm/boot/Image)
+bp:;	$(call makeboot, arch/arm/boot/bootpImage)
+i:;	$(call makeboot, install)
+zi:;	$(call makeboot, zinstall)

 #
 # Configuration targets.  Use these to select a
@@ -261,10 +210,9 @@ bp:;	+@$(call makeboot, bootpImage)

 arch/$(ARCH)/kernel/asm-offsets.s: include/asm include/linux/version.h \
 				   include/config/MARKER
+	@:

-include/asm-$(ARCH)/constants.h.tmp: arch/$(ARCH)/kernel/asm-offsets.s
-	@$(generate-asm-offsets.h) < $< > $@
-
-include/asm-$(ARCH)/constants.h: include/asm-$(ARCH)/constants.h.tmp
+include/asm-$(ARCH)/constants.h: arch/$(ARCH)/kernel/asm-offsets.s
 	@echo -n '  Generating $@'
+	@$(generate-asm-offsets.h) < $< > $@.tmp
 	@$(update-if-changed)
--- a/arch/arm/boot/Makefile
+++ b/arch/arm/boot/Makefile
@@ -13,132 +13,81 @@
 #   PARAMS_PHYS must be with 4MB of ZRELADDR
 #   INITRD_PHYS must be in RAM

-ifeq ($(CONFIG_CPU_26),y)
-ZRELADDR	 = 0x02080000
-PARAMS_PHYS	 = 0x0207c000
-INITRD_PHYS	 = 0x02180000
-endif
-
-ifeq ($(CONFIG_ARCH_RPC),y)
-ZRELADDR	 = 0x10008000
-PARAMS_PHYS	 = 0x10000100
-INITRD_PHYS	 = 0x18000000
-endif
-
-ifeq ($(CONFIG_ARCH_CLPS7500),y)
-ZRELADDR	 = 0x10008000
-endif
-
-ifeq ($(CONFIG_ARCH_EBSA110),y)
-ZRELADDR	 = 0x00008000
-PARAMS_PHYS	 = 0x00000400
-INITRD_PHYS	 = 0x00800000
-endif
-
-ifeq ($(CONFIG_ARCH_SHARK),y)
-ZTEXTADDR	 = 0x08508000
-ZRELADDR	 = 0x08008000
-endif
-
-ifeq ($(CONFIG_FOOTBRIDGE),y)
-ZRELADDR	 = 0x00008000
-PARAMS_PHYS	 = 0x00000100
-INITRD_PHYS	 = 0x00800000
-endif
-
-ifeq ($(CONFIG_ARCH_INTEGRATOR),y)
-ZRELADDR	 = 0x00008000
-PARAMS_PHYS	 = 0x00000100
-INITRD_PHYS	 = 0x00800000
-endif
-
-ifeq ($(CONFIG_ARCH_CAMELOT),y)
-ZRELADDR	 = 0x00008000
-endif
-
-ifeq ($(CONFIG_ARCH_NEXUSPCI),y)
-ZRELADDR	 = 0x40008000
-endif
-
-ifeq ($(CONFIG_ARCH_L7200),y)
-ZRELADDR	 = 0xf0008000
-endif
-
+   zreladdr-$(CONFIG_CPU_26)		:= 0x02080000 
+params_phys-$(CONFIG_CPU_26)		:= 0x0207c000
+initrd_phys-$(CONFIG_CPU_26)		:= 0x02180000
+   zreladdr-$(CONFIG_ARCH_RPC)		:= 0x10008000
+params_phys-$(CONFIG_ARCH_RPC)		:= 0x10000100
+initrd_phys-$(CONFIG_ARCH_RPC)		:= 0x18000000
+   zreladdr-$(CONFIG_ARCH_CLPS7500)	:= 0x10008000
+   zreladdr-$(CONFIG_ARCH_CLPS7500)	:= 0x10008000
+   zreladdr-$(CONFIG_ARCH_EBSA110)	:= 0x00008000
+params_phys-$(CONFIG_ARCH_EBSA110)	:= 0x00000400
+initrd_phys-$(CONFIG_ARCH_EBSA110)	:= 0x00800000
+  ztextaddr-$(CONFIG_ARCH_SHARK)	:= 0x08508000
+   zreladdr-$(CONFIG_ARCH_SHARK)	:= 0x08008000
+   zreladdr-$(CONFIG_FOOTBRIDGE)	:= 0x00008000
+params_phys-$(CONFIG_FOOTBRIDGE)	:= 0x00000100
+initrd_phys-$(CONFIG_FOOTBRIDGE)	:= 0x00800000
+   zreladdr-$(CONFIG_ARCH_INTEGRATOR)	:= 0x00008000
+params_phys-$(CONFIG_ARCH_INTEGRATOR)	:= 0x00000100
+initrd_phys-$(CONFIG_ARCH_INTEGRATOR)	:= 0x00800000
+   zreladdr-$(CONFIG_ARCH_CAMELOT)	:= 0x00008000
+   zreladdr-$(CONFIG_ARCH_NEXUSPCI)	:= 0x40008000
+   zreladdr-$(CONFIG_ARCH_L7200)	:= 0xf0008000
 # The standard locations for stuff on CLPS711x type processors
-ifeq ($(CONFIG_ARCH_CLPS711X),y)
-ZRELADDR	 = 0xc0028000
-PARAMS_PHYS	 = 0xc0000100
-endif
-
+   zreladdr-$(CONFIG_ARCH_CLPS711X)	:= 0xc0028000 
+params_phys-$(CONFIG_ARCH_CLPS711X)	:= 0xc0000100
 # Should probably have some agreement on these...
-ifeq ($(CONFIG_ARCH_P720T),y)
-INITRD_PHYS	 = 0xc0400000
-endif
-ifeq ($(CONFIG_ARCH_CDB89712),y)
-INITRD_PHYS	 = 0x00700000
-endif
-
+initrd_phys-$(CONFIG_ARCH_P720T)	:= 0xc0400000
+initrd_phys-$(CONFIG_ARCH_CDB89712)	:= 0x00700000
+   zreladdr-$(CONFIG_ARCH_SA1100)	:= 0xc0008000
 ifeq ($(CONFIG_ARCH_SA1100),y)
-ZRELADDR	 = 0xc0008000
-# No defconfig file to move this into...
-#ifeq ($(CONFIG_SA1100_YOPY),y)
-#  ZTEXTADDR      = 0x00080000
-#  ZBSSADDR       = 0xc0200000
-#endif
-ifeq ($(CONFIG_SA1111),y)
-  ZRELADDR	 = 0xc0208000
-endif
-endif
-
-ifeq ($(CONFIG_ARCH_PXA),y)
-ZRELADDR	 = 0xa0008000
-endif
-
-ifeq ($(CONFIG_ARCH_ANAKIN),y)
-ZRELADDR	 = 0x20008000
-endif
-
-ifeq ($(CONFIG_ARCH_IQ80310),y)
-ZRELADDR	 = 0xa0008000
-endif
-
-ifeq ($(CONFIG_ARCH_ADIFCC),y)
-ZRELADDR	 = 0xc0008000
+   zreladdr-$(CONFIG_SA1111)		:= 0xc0208000
 endif
+  zreladdr-$(CONFIG_ARCH_PXA)		:= 0xa0008000
+  zreladdr-$(CONFIG_ARCH_ANAKIN)	:= 0x20008000
+  zreladdr-$(CONFIG_ARCH_IQ80310)	:= 0xa0008000
+  zreladdr-$(CONFIG_ARCH_ADIFCC)	:= 0xc0008000

+ZRELADDR    := $(zreladdr-y)
+ZTEXTADDR   := $(ztextaddr-y)
+PARAMS_PHYS := $(params_phys-y)
+INITRD_PHYS := $(initrd_phys-y)
 #
 # We now have a PIC decompressor implementation.  Decompressors running
 # from RAM should not define ZTEXTADDR.  Decompressors running directly
 # from ROM or Flash must define ZTEXTADDR (preferably via the config)
-#
+# FIXME: Previous assignment to ztextaddr-y is lost here. See SHARK
 ifeq ($(CONFIG_ZBOOT_ROM),y)
-ZTEXTADDR	=$(CONFIG_ZBOOT_ROM_TEXT)
-ZBSSADDR	=$(CONFIG_ZBOOT_ROM_BSS)
+ZTEXTADDR	:= $(CONFIG_ZBOOT_ROM_TEXT)
+ZBSSADDR	:= $(CONFIG_ZBOOT_ROM_BSS)
 else
-ZTEXTADDR	=0
-ZBSSADDR	=ALIGN(4)
+ZTEXTADDR	:= 0
+ZBSSADDR	:= ALIGN(4)
 endif

 export	ZTEXTADDR ZBSSADDR ZRELADDR INITRD_PHYS PARAMS_PHYS

-include $(TOPDIR)/Rules.make
+EXTRA_TARGETS := Image zImage bootpImage

 $(obj)/Image: vmlinux FORCE
 	$(call if_changed,objcopy)
-
-bzImage: $(obj)/zImage
+	@echo '  Kernel: $@ is ready'

 $(obj)/zImage:	$(obj)/compressed/vmlinux FORCE
 	$(call if_changed,objcopy)
+	@echo '  Kernel: $@ is ready'

 $(obj)/bootpImage: $(obj)/bootp/bootp FORCE
 	$(call if_changed,objcopy)
+	@echo '  Kernel: $@ is ready'

 $(obj)/compressed/vmlinux: vmlinux FORCE
-	+@$(call descend,arch/arm/boot/compressed, $(obj)/compressed/vmlinux)
+	$(Q)$(MAKE) -f scripts/Makefile.build obj=$(obj)/compressed $@

 $(obj)/bootp/bootp: $(obj)/zImage initrd FORCE
-	+@$(call descend,arch/arm/boot/bootp, $(obj)/bootp/bootp)
+	$(Q)$(MAKE) -f scripts/Makefile.build obj=$(obj)/compressed $@

 .PHONY: initrd
 initrd:
@@ -157,19 +106,16 @@ zinstall: $(obj)/zImage
 	$(VERSION).$(PATCHLEVEL).$(SUBLEVEL)$(EXTRAVERSION) \
 	$(obj)/zImage System.map "$(INSTALL_PATH)"

-clean:
-	$(RM) $(addprefix $(obj)/,Image zImage bootpImage)
-	+@$(call descend,arch/arm/boot/bootp, clean)
-	+@$(call descend,arch/arm/boot/compressed, clean)
+clean-files := $(addprefix $(obj)/,Image zImage bootpImage)
+subdir-	    := bootp compressed

 archhelp:
-	@echo  '* bzImage/zImage- Compressed kernel image (arch/$(ARCH)/boot/zImage)'
+	@echo  '* zImage        - Compressed kernel image (arch/$(ARCH)/boot/zImage)'
 	@echo  '  Image         - Uncompressed kernel image (arch/$(ARCH)/boot/Image)'
 	@echo  '  bootpImage    - Combined zImage and initial RAM disk' 
+	@echo  '  initrd        - Create an initial image'
 	@echo  '  install       - Install uncompressed kernel'
 	@echo  '  zinstall      - Install compressed kernel'
 	@echo  '                  Install using (your) ~/bin/installkernel or'
 	@echo  '                  (distribution) /sbin/installkernel or'
 	@echo  '                  install to $$(INSTALL_PATH) and run lilo'
-
-
--- a/arch/arm/boot/bootp/Makefile
+++ b/arch/arm/boot/bootp/Makefile
@@ -9,8 +9,6 @@ ZLDFLAGS	=-p -X -T $(obj)/bootp.lds \

 EXTRA_TARGETS := bootp

-include $(TOPDIR)/Rules.make
-
 # Note that bootp.lds picks up kernel.o and initrd.o
 $(obj)/bootp:	$(addprefix $(obj)/,init.o kernel.o initrd.o bootp.lds)
 		$(LD) $(ZLDFLAGS) -o $@ $(obj)/init.o
@@ -22,5 +20,3 @@ $(obj)/initrd.o: $(INITRD)
 		$(LD) -r -s -o $@ -b binary $(INITRD)

 .PHONY:		$(INITRD) $(ZSYSTEM)
-
-clean:;		$(RM) $(obj)/bootp
--- a/arch/arm/boot/compressed/Makefile
+++ b/arch/arm/boot/compressed/Makefile
@@ -63,28 +63,30 @@ ifeq ($(CONFIG_CPU_XSCALE),y)
 OBJS		+= head-xscale.o
 endif

-SEDFLAGS	= s/TEXT_START/$(ZTEXTADDR)/;s/LOAD_ADDR/$(ZRELADDR)/;\
-s/BSS_START/$(ZBSSADDR)/;s#OBJ#$(obj)#
+SEDFLAGS	= s/TEXT_START/$(ZTEXTADDR)/;s/LOAD_ADDR/$(ZRELADDR)/;s/BSS_START/$(ZBSSADDR)/

-EXTRA_TARGETS := vmlinux piggy.o font.o head.o $(OBJS)
+EXTRA_TARGETS := vmlinux vmlinux.lds piggy piggy.gz\
+                 piggy.o font.o head.o $(OBJS)
 EXTRA_CFLAGS  := $(CFLAGS_BOOT) -fpic
 EXTRA_AFLAGS  := -traditional

-include $(TOPDIR)/Rules.make
-
 LDFLAGS_vmlinux := -p -X \
 	$(shell $(CC) $(CFLAGS) --print-libgcc-file-name) -T

 $(obj)/vmlinux: $(obj)/vmlinux.lds $(obj)/$(HEAD) $(obj)/piggy.o \
-	 	$(addprefix $(obj)/, $(OBJS))
+	 	$(addprefix $(obj)/, $(OBJS)) FORCE
 	$(call if_changed,ld)
+	@:
+

+$(obj)/piggy: vmlinux FORCE
+	$(call if_changed,objcopy)

-$(obj)/piggy:    vmlinux;	$(call if_changed,objcopy)
-$(obj)/piggy.gz: $(obj)/piggy;	$(call if_changed,gzip)
+$(obj)/piggy.gz: $(obj)/piggy FORCE
+	$(call if_changed,gzip)

 LDFLAGS_piggy.o := -r -b binary
-$(obj)/piggy.o:  $(obj)/piggy.gz
+$(obj)/piggy.o:  $(obj)/piggy.gz FORCE
 	$(call if_changed,ld)

 CFLAGS_font.o := -Dstatic=
@@ -93,9 +95,7 @@ $(obj)/font.o: $(FONTC)
 $(obj)/vmlinux.lds: $(obj)/vmlinux.lds.in Makefile arch/arm/boot/Makefile .config
 	@sed "$(SEDFLAGS)" < $< > $@

-.PHONY:	clean
-clean:
-	rm -f $(addprefix $(obj)/,vmlinux core piggy* vmlinux.lds)
+clean-files := $(addprefix $(obj)/,vmlinux piggy* vmlinux.lds)

 $(obj)/misc.o: $(obj)/misc.c include/asm/arch/uncompress.h lib/inflate.c

--- a/arch/arm/tools/Makefile
+++ b/arch/arm/tools/Makefile
@@ -4,9 +4,6 @@
 # Copyright (C) 2001 Russell King
 #

-include $(TOPDIR)/Rules.make
-
 include/asm-arm/mach-types.h: $(obj)/mach-types $(obj)/gen-mach-types
 	@echo '  Generating $@'
-	@awk -f $(obj)/gen-mach-types $(obj)/mach-types > $@
-
+	@$(AWK) -f $(obj)/gen-mach-types $(obj)/mach-types > $@