arch/arm/Makefile - third_party/linux - Git at Google


            
            #

            
            # arch/arm/Makefile

            
            #

            
            # This file is subject to the terms and conditions of the GNU General Public

            
            # License.  See the file "COPYING" in the main directory of this archive

            
            # for more details.

            
            #

            
            # Copyright (C) 1995-2001 by Russell King


            LDFLAGS_vmlinux	:=-p --no-undefined -X

            
            CPPFLAGS_vmlinux.lds = -DTEXTADDR=$(TEXTADDR) -DDATAADDR=$(DATAADDR)

            
            OBJCOPYFLAGS	:=-O binary -R .note -R .comment -S

            
            GZFLAGS		:=-9

            
            #CFLAGS		+=-pipe


            # Do not use arch/arm/defconfig - it's always outdated.

            
            # Select a platform tht is kept up-to-date

            
            KBUILD_DEFCONFIG := versatile_defconfig


            ifeq ($(CONFIG_FRAME_POINTER),y)

            
            CFLAGS		+=-fno-omit-frame-pointer -mapcs -mno-sched-prolog

            
            endif


            ifeq ($(CONFIG_CPU_BIG_ENDIAN),y)

            
            CFLAGS		+= -mbig-endian

            
            AS		+= -EB

            
            LD		+= -EB

            
            AFLAGS		+= -mbig-endian

            
            else

            
            CFLAGS		+= -mlittle-endian

            
            AS		+= -EL

            
            LD		+= -EL

            
            AFLAGS		+= -mlittle-endian

            
            endif


            comma = ,


            # This selects which instruction set is used.

            
            # Note that GCC does not numerically define an architecture version

            
            # macro, but instead defines a whole series of macros which makes

            
            # testing for a specific architecture or later rather impossible.

            
            arch-$(CONFIG_CPU_32v6)		:=-D__LINUX_ARM_ARCH__=6 $(call cc-option,-march=armv6,-march=armv5t -Wa$(comma)-march=armv6)

            
            arch-$(CONFIG_CPU_32v5)		:=-D__LINUX_ARM_ARCH__=5 $(call cc-option,-march=armv5te,-march=armv4)

            
            arch-$(CONFIG_CPU_32v4)		:=-D__LINUX_ARM_ARCH__=4 -march=armv4

            
            arch-$(CONFIG_CPU_32v3)		:=-D__LINUX_ARM_ARCH__=3 -march=armv3


            # This selects how we optimise for the processor.

            
            tune-$(CONFIG_CPU_ARM610)	:=-mtune=arm610

            
            tune-$(CONFIG_CPU_ARM710)	:=-mtune=arm710

            
            tune-$(CONFIG_CPU_ARM720T)	:=-mtune=arm7tdmi

            
            tune-$(CONFIG_CPU_ARM920T)	:=-mtune=arm9tdmi

            
            tune-$(CONFIG_CPU_ARM922T)	:=-mtune=arm9tdmi

            
            tune-$(CONFIG_CPU_ARM925T)	:=-mtune=arm9tdmi

            
            tune-$(CONFIG_CPU_ARM926T)	:=-mtune=arm9tdmi

            
            tune-$(CONFIG_CPU_SA110)	:=-mtune=strongarm110

            
            tune-$(CONFIG_CPU_SA1100)	:=-mtune=strongarm1100

            
            tune-$(CONFIG_CPU_XSCALE)	:=$(call cc-option,-mtune=xscale,-mtune=strongarm110) -Wa,-mcpu=xscale

            
            tune-$(CONFIG_CPU_V6)		:=-mtune=strongarm


            # Need -Uarm for gcc < 3.x

            
            CFLAGS_ABI	:=$(call cc-option,-mapcs-32,-mabi=apcs-gnu)

            
            CFLAGS		+=$(CFLAGS_ABI) $(arch-y) $(tune-y) $(call cc-option,-mshort-load-bytes,$(call cc-option,-malignment-traps,)) -msoft-float -Uarm

            
            AFLAGS		+=$(CFLAGS_ABI) $(arch-y) $(tune-y) -msoft-float


            CHECKFLAGS	+= -D__arm__


            #Default value

            
            head-y		:= arch/arm/kernel/head.o arch/arm/kernel/init_task.o

            
            textaddr-y	:= 0xC0008000


             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_SHARK)	   := shark

            
             machine-$(CONFIG_ARCH_SA1100)	   := sa1100

            
            ifeq ($(CONFIG_ARCH_SA1100),y)

            
            # SA1111 DMA bug: we don't want the kernel to live in precious DMA-able memory

            
            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_IOP3XX)	   := iop3xx

            
             machine-$(CONFIG_ARCH_IXP4XX)	   := ixp4xx

            
             machine-$(CONFIG_ARCH_IXP2000)    := ixp2000

            
             machine-$(CONFIG_ARCH_OMAP)	   := omap

            
             machine-$(CONFIG_ARCH_S3C2410)	   := s3c2410

            
             machine-$(CONFIG_ARCH_LH7A40X)	   := lh7a40x

            
             machine-$(CONFIG_ARCH_VERSATILE)  := versatile

            
             machine-$(CONFIG_ARCH_IMX)	   := imx

            
             machine-$(CONFIG_ARCH_H720X)	   := h720x


            ifeq ($(CONFIG_ARCH_EBSA110),y)

            
            # This is what happens if you forget the IOCS16 line.

            
            # PCMCIA cards stop working.

            
            CFLAGS_3c589_cs.o :=-DISA_SIXTEEN_BIT_PERIPHERAL

            
            export CFLAGS_3c589_cs.o

            
            endif


            TEXTADDR := $(textaddr-y)

            
            ifeq ($(CONFIG_XIP_KERNEL),y)

            
              DATAADDR := $(TEXTADDR)

            
              xipaddr-$(CONFIG_ARCH_CO285) := 0x5f000000

            
              xipaddr-y ?= 0xbf000000

            
              # Replace phys addr with virt addr while keeping offset from base.

            
              TEXTADDR := $(shell echo $(CONFIG_XIP_PHYS_ADDR) $(xipaddr-y) | \

            
                                  awk --non-decimal-data '/[:xdigit:]/ \

            
                                      { printf("0x%x\n", and($$1, 0x000fffff) + $$2) }' )

            
            endif


            ifeq ($(incdir-y),)

            
            incdir-y := $(machine-y)

            
            endif

            
            INCDIR   := arch-$(incdir-y)

            
            ifneq ($(machine-y),)

            
            MACHINE  := arch/arm/mach-$(machine-y)/

            
            else

            
            MACHINE  :=

            
            endif


            export	TEXTADDR DATAADDR GZFLAGS


            # Do we have FASTFPE?

            
            FASTFPE		:=arch/arm/fastfpe

            
            ifeq ($(FASTFPE),$(wildcard $(FASTFPE)))

            
            FASTFPE_OBJ	:=$(FASTFPE)/

            
            endif


            # If we have a machine-specific directory, then include it in the build.

            
            core-y				+= arch/arm/kernel/ arch/arm/mm/ arch/arm/common/

            
            core-y				+= $(MACHINE)

            
            core-$(CONFIG_FPE_NWFPE)	+= arch/arm/nwfpe/

            
            core-$(CONFIG_FPE_FASTFPE)	+= $(FASTFPE_OBJ)

            
            core-$(CONFIG_VFP)		+= arch/arm/vfp/


            drivers-$(CONFIG_OPROFILE)      += arch/arm/oprofile/

            
            drivers-$(CONFIG_ARCH_CLPS7500)	+= drivers/acorn/char/

            
            drivers-$(CONFIG_ARCH_L7200)	+= drivers/acorn/char/


            libs-y				+= arch/arm/lib/


            # Default target when executing plain make

            
            ifeq ($(CONFIG_XIP_KERNEL),y)

            
            all: xipImage

            
            else

            
            all: zImage

            
            endif


            boot := arch/arm/boot


            #	Update machine arch and proc symlinks if something which affects

            
            #	them changed.  We use .arch to indicate when they were updated

            
            #	last, otherwise make uses the target directory mtime.


            include/asm-arm/.arch: $(wildcard include/config/arch/*.h) include/config/MARKER

            
            	@echo '  SYMLINK include/asm-arm/arch -> include/asm-arm/$(INCDIR)'

            
            ifneq ($(KBUILD_SRC),)

            
            	$(Q)mkdir -p include/asm-arm

            
            	$(Q)ln -fsn $(srctree)/include/asm-arm/$(INCDIR) include/asm-arm/arch

            
            else

            
            	$(Q)ln -fsn $(INCDIR) include/asm-arm/arch

            
            endif

            
            	@touch $@


            prepare: maketools include/asm-arm/.arch


            .PHONY: maketools FORCE

            
            maketools: include/asm-arm/constants.h include/linux/version.h FORCE

            
            	$(Q)$(MAKE) $(build)=arch/arm/tools include/asm-arm/mach-types.h


            # Convert bzImage to zImage

            
            bzImage: zImage


            zImage Image xipImage bootpImage uImage: vmlinux

            
            	$(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $(boot)/$@


            zinstall install: vmlinux

            
            	$(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $@


            CLEAN_FILES += include/asm-arm/constants.h* include/asm-arm/mach-types.h \

            
            	       include/asm-arm/arch include/asm-arm/.arch


            # We use MRPROPER_FILES and CLEAN_FILES now

            
            archclean:

            
            	$(Q)$(MAKE) $(clean)=$(boot)


            # My testing targets (bypasses dependencies)

            
            bp:;	$(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $(boot)/bootpImage

            
            i zi:;	$(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $@


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

            
            				   include/asm-arm/.arch


            include/asm-$(ARCH)/constants.h: arch/$(ARCH)/kernel/asm-offsets.s

            
            	$(call filechk,gen-asm-offsets)


            define archhelp

            
              echo  '* zImage        - Compressed kernel image (arch/$(ARCH)/boot/zImage)'

            
              echo  '  Image         - Uncompressed kernel image (arch/$(ARCH)/boot/Image)'

            
              echo  '* xipImage      - XIP kernel image, if configured (arch/$(ARCH)/boot/xipImage)'

            
              echo  '  bootpImage    - Combined zImage and initial RAM disk'

            
              echo  '                  (supply initrd image via make variable INITRD=<path>)'

            
              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'

            
            endef
	#
	# arch/arm/Makefile
	#
	# This file is subject to the terms and conditions of the GNU General Public
	# License. See the file "COPYING" in the main directory of this archive
	# for more details.
	#
	# Copyright (C) 1995-2001 by Russell King

	LDFLAGS_vmlinux :=-p --no-undefined -X
	CPPFLAGS_vmlinux.lds = -DTEXTADDR=$(TEXTADDR) -DDATAADDR=$(DATAADDR)
	OBJCOPYFLAGS :=-O binary -R .note -R .comment -S
	GZFLAGS :=-9
	#CFLAGS +=-pipe

	# Do not use arch/arm/defconfig - it's always outdated.
	# Select a platform tht is kept up-to-date
	KBUILD_DEFCONFIG := versatile_defconfig

	ifeq ($(CONFIG_FRAME_POINTER),y)
	CFLAGS +=-fno-omit-frame-pointer -mapcs -mno-sched-prolog
	endif

	ifeq ($(CONFIG_CPU_BIG_ENDIAN),y)
	CFLAGS += -mbig-endian
	AS += -EB
	LD += -EB
	AFLAGS += -mbig-endian
	else
	CFLAGS += -mlittle-endian
	AS += -EL
	LD += -EL
	AFLAGS += -mlittle-endian
	endif

	comma = ,

	# This selects which instruction set is used.
	# Note that GCC does not numerically define an architecture version
	# macro, but instead defines a whole series of macros which makes
	# testing for a specific architecture or later rather impossible.
	arch-$(CONFIG_CPU_32v6) :=-D__LINUX_ARM_ARCH__=6 $(call cc-option,-march=armv6,-march=armv5t -Wa$(comma)-march=armv6)
	arch-$(CONFIG_CPU_32v5) :=-D__LINUX_ARM_ARCH__=5 $(call cc-option,-march=armv5te,-march=armv4)
	arch-$(CONFIG_CPU_32v4) :=-D__LINUX_ARM_ARCH__=4 -march=armv4
	arch-$(CONFIG_CPU_32v3) :=-D__LINUX_ARM_ARCH__=3 -march=armv3

	# This selects how we optimise for the processor.
	tune-$(CONFIG_CPU_ARM610) :=-mtune=arm610
	tune-$(CONFIG_CPU_ARM710) :=-mtune=arm710
	tune-$(CONFIG_CPU_ARM720T) :=-mtune=arm7tdmi
	tune-$(CONFIG_CPU_ARM920T) :=-mtune=arm9tdmi
	tune-$(CONFIG_CPU_ARM922T) :=-mtune=arm9tdmi
	tune-$(CONFIG_CPU_ARM925T) :=-mtune=arm9tdmi
	tune-$(CONFIG_CPU_ARM926T) :=-mtune=arm9tdmi
	tune-$(CONFIG_CPU_SA110) :=-mtune=strongarm110
	tune-$(CONFIG_CPU_SA1100) :=-mtune=strongarm1100
	tune-$(CONFIG_CPU_XSCALE) :=$(call cc-option,-mtune=xscale,-mtune=strongarm110) -Wa,-mcpu=xscale
	tune-$(CONFIG_CPU_V6) :=-mtune=strongarm

	# Need -Uarm for gcc < 3.x
	CFLAGS_ABI :=$(call cc-option,-mapcs-32,-mabi=apcs-gnu)
	CFLAGS +=$(CFLAGS_ABI) $(arch-y) $(tune-y) $(call cc-option,-mshort-load-bytes,$(call cc-option,-malignment-traps,)) -msoft-float -Uarm
	AFLAGS +=$(CFLAGS_ABI) $(arch-y) $(tune-y) -msoft-float

	CHECKFLAGS += -D__arm__

	#Default value
	head-y := arch/arm/kernel/head.o arch/arm/kernel/init_task.o
	textaddr-y := 0xC0008000

	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_SHARK) := shark
	machine-$(CONFIG_ARCH_SA1100) := sa1100
	ifeq ($(CONFIG_ARCH_SA1100),y)
	# SA1111 DMA bug: we don't want the kernel to live in precious DMA-able memory
	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-$(CONFIG_ARCH_IOP3XX) := iop3xx
	machine-$(CONFIG_ARCH_IXP4XX) := ixp4xx
	machine-$(CONFIG_ARCH_IXP2000) := ixp2000
	machine-$(CONFIG_ARCH_OMAP) := omap
	machine-$(CONFIG_ARCH_S3C2410) := s3c2410
	machine-$(CONFIG_ARCH_LH7A40X) := lh7a40x
	machine-$(CONFIG_ARCH_VERSATILE) := versatile
	machine-$(CONFIG_ARCH_IMX) := imx
	machine-$(CONFIG_ARCH_H720X) := h720x

	ifeq ($(CONFIG_ARCH_EBSA110),y)
	# This is what happens if you forget the IOCS16 line.
	# PCMCIA cards stop working.
	CFLAGS_3c589_cs.o :=-DISA_SIXTEEN_BIT_PERIPHERAL
	export CFLAGS_3c589_cs.o
	endif

	TEXTADDR := $(textaddr-y)
	ifeq ($(CONFIG_XIP_KERNEL),y)
	DATAADDR := $(TEXTADDR)
	xipaddr-$(CONFIG_ARCH_CO285) := 0x5f000000
	xipaddr-y ?= 0xbf000000
	# Replace phys addr with virt addr while keeping offset from base.
	TEXTADDR := $(shell echo $(CONFIG_XIP_PHYS_ADDR) $(xipaddr-y) \| \
	awk --non-decimal-data '/[:xdigit:]/ \
	{ printf("0x%x\n", and($$1, 0x000fffff) + $$2) }' )
	endif

	ifeq ($(incdir-y),)
	incdir-y := $(machine-y)
	endif
	INCDIR := arch-$(incdir-y)
	ifneq ($(machine-y),)
	MACHINE := arch/arm/mach-$(machine-y)/
	else
	MACHINE :=
	endif

	export TEXTADDR DATAADDR GZFLAGS

	# Do we have FASTFPE?
	FASTFPE :=arch/arm/fastfpe
	ifeq ($(FASTFPE),$(wildcard $(FASTFPE)))
	FASTFPE_OBJ :=$(FASTFPE)/
	endif

	# If we have a machine-specific directory, then include it in the build.
	core-y += arch/arm/kernel/ arch/arm/mm/ arch/arm/common/
	core-y += $(MACHINE)
	core-$(CONFIG_FPE_NWFPE) += arch/arm/nwfpe/
	core-$(CONFIG_FPE_FASTFPE) += $(FASTFPE_OBJ)
	core-$(CONFIG_VFP) += arch/arm/vfp/

	drivers-$(CONFIG_OPROFILE) += arch/arm/oprofile/
	drivers-$(CONFIG_ARCH_CLPS7500) += drivers/acorn/char/
	drivers-$(CONFIG_ARCH_L7200) += drivers/acorn/char/

	libs-y += arch/arm/lib/

	# Default target when executing plain make
	ifeq ($(CONFIG_XIP_KERNEL),y)
	all: xipImage
	else
	all: zImage
	endif

	boot := arch/arm/boot

	# Update machine arch and proc symlinks if something which affects
	# them changed. We use .arch to indicate when they were updated
	# last, otherwise make uses the target directory mtime.

	include/asm-arm/.arch: $(wildcard include/config/arch/*.h) include/config/MARKER
	@echo ' SYMLINK include/asm-arm/arch -> include/asm-arm/$(INCDIR)'
	ifneq ($(KBUILD_SRC),)
	$(Q)mkdir -p include/asm-arm
	$(Q)ln -fsn $(srctree)/include/asm-arm/$(INCDIR) include/asm-arm/arch
	else
	$(Q)ln -fsn $(INCDIR) include/asm-arm/arch
	endif
	@touch $@

	prepare: maketools include/asm-arm/.arch

	.PHONY: maketools FORCE
	maketools: include/asm-arm/constants.h include/linux/version.h FORCE
	$(Q)$(MAKE) $(build)=arch/arm/tools include/asm-arm/mach-types.h

	# Convert bzImage to zImage
	bzImage: zImage

	zImage Image xipImage bootpImage uImage: vmlinux
	$(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $(boot)/$@

	zinstall install: vmlinux
	$(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $@

	CLEAN_FILES += include/asm-arm/constants.h* include/asm-arm/mach-types.h \
	include/asm-arm/arch include/asm-arm/.arch

	# We use MRPROPER_FILES and CLEAN_FILES now
	archclean:
	$(Q)$(MAKE) $(clean)=$(boot)

	# My testing targets (bypasses dependencies)
	bp:; $(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $(boot)/bootpImage
	i zi:; $(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $@

	arch/$(ARCH)/kernel/asm-offsets.s: include/asm include/linux/version.h \
	include/asm-arm/.arch

	include/asm-$(ARCH)/constants.h: arch/$(ARCH)/kernel/asm-offsets.s
	$(call filechk,gen-asm-offsets)

	define archhelp
	echo '* zImage - Compressed kernel image (arch/$(ARCH)/boot/zImage)'
	echo ' Image - Uncompressed kernel image (arch/$(ARCH)/boot/Image)'
	echo '* xipImage - XIP kernel image, if configured (arch/$(ARCH)/boot/xipImage)'
	echo ' bootpImage - Combined zImage and initial RAM disk'
	echo ' (supply initrd image via make variable INITRD=<path>)'
	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'
	endef