arch/arm/Makefile - nest-guard/1.0/linux-imx - Git at Google


            
            #

            
            # arch/arm/Makefile

            
            #

            
            # This file is included by the global makefile so that you can add your own

            
            # architecture-specific flags and dependencies.

            
            #

            
            # 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


            .NOTPARALLEL:


            # Ensure linker flags are correct

            
            LDFLAGS		:=


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

            
            ifeq ($(CONFIG_CPU_ENDIAN_BE8),y)

            
            LDFLAGS_vmlinux	+= --be8

            
            LDFLAGS_MODULE	+= --be8

            
            endif


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

            
            GZFLAGS		:=-9

            
            #KBUILD_CFLAGS	+=-pipe


            # Never generate .eh_frame

            
            KBUILD_CFLAGS	+= $(call cc-option,-fno-dwarf2-cfi-asm)


            # Do not use arch/arm/defconfig - it's always outdated.

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

            
            KBUILD_DEFCONFIG := versatile_defconfig


            # defines filename extension depending memory management type.

            
            ifeq ($(CONFIG_MMU),)

            
            MMUEXT		:= -nommu

            
            KBUILD_CFLAGS	+= $(call cc-option,-mno-unaligned-access)

            
            endif


            ifeq ($(CONFIG_FRAME_POINTER),y)

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

            
            endif


            ifeq ($(CONFIG_CPU_BIG_ENDIAN),y)

            
            KBUILD_CPPFLAGS	+= -mbig-endian

            
            AS		+= -EB

            
            LD		+= -EB

            
            else

            
            KBUILD_CPPFLAGS	+= -mlittle-endian

            
            AS		+= -EL

            
            LD		+= -EL

            
            endif


            #

            
            # The Scalar Replacement of Aggregates (SRA) optimization pass in GCC 4.9 and

            
            # later may result in code being generated that handles signed short and signed

            
            # char struct members incorrectly. So disable it.

            
            # (https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65932)

            
            #

            
            KBUILD_CFLAGS	+= $(call cc-option,-fno-ipa-sra)


            # 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_32v7M)	=-D__LINUX_ARM_ARCH__=7 -march=armv7-m -Wa,-march=armv7-m

            
            arch-$(CONFIG_CPU_32v7)		=-D__LINUX_ARM_ARCH__=7 $(call cc-option,-march=armv7-a,-march=armv5t -Wa$(comma)-march=armv7-a)

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

            
            # Only override the compiler option if ARMv6. The ARMv6K extensions are

            
            # always available in ARMv7

            
            ifeq ($(CONFIG_CPU_32v6),y)

            
            arch-$(CONFIG_CPU_32v6K)	=-D__LINUX_ARM_ARCH__=6 $(call cc-option,-march=armv6k,-march=armv5t -Wa$(comma)-march=armv6k)

            
            endif

            
            arch-$(CONFIG_CPU_32v5)		=-D__LINUX_ARM_ARCH__=5 $(call cc-option,-march=armv5te,-march=armv4t)

            
            arch-$(CONFIG_CPU_32v4T)	=-D__LINUX_ARM_ARCH__=4 -march=armv4t

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

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


            # Evaluate arch cc-option calls now

            
            arch-y := $(arch-y)


            # This selects how we optimise for the processor.

            
            tune-$(CONFIG_CPU_ARM7TDMI)	=-mtune=arm7tdmi

            
            tune-$(CONFIG_CPU_ARM720T)	=-mtune=arm7tdmi

            
            tune-$(CONFIG_CPU_ARM740T)	=-mtune=arm7tdmi

            
            tune-$(CONFIG_CPU_ARM9TDMI)	=-mtune=arm9tdmi

            
            tune-$(CONFIG_CPU_ARM940T)	=-mtune=arm9tdmi

            
            tune-$(CONFIG_CPU_ARM946E)	=$(call cc-option,-mtune=arm9e,-mtune=arm9tdmi)

            
            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_FA526)	=-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-$(CONFIG_CPU_XSC3)		=$(call cc-option,-mtune=xscale,-mtune=strongarm110) -Wa,-mcpu=xscale

            
            tune-$(CONFIG_CPU_FEROCEON)	=$(call cc-option,-mtune=marvell-f,-mtune=xscale)

            
            tune-$(CONFIG_CPU_V6)		=$(call cc-option,-mtune=arm1136j-s,-mtune=strongarm)

            
            tune-$(CONFIG_CPU_V6K)		=$(call cc-option,-mtune=arm1136j-s,-mtune=strongarm)


            # Evaluate tune cc-option calls now

            
            tune-y := $(tune-y)


            ifeq ($(CONFIG_AEABI),y)

            
            CFLAGS_ABI	:=-mabi=aapcs-linux -mno-thumb-interwork -mfpu=vfp

            
            else

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

            
            endif


            ifeq ($(CONFIG_ARM_UNWIND),y)

            
            CFLAGS_ABI	+=-funwind-tables

            
            endif


            ifeq ($(CONFIG_THUMB2_KERNEL),y)

            
            AFLAGS_AUTOIT	:=$(call as-option,-Wa$(comma)-mimplicit-it=always,-Wa$(comma)-mauto-it)

            
            AFLAGS_NOWARN	:=$(call as-option,-Wa$(comma)-mno-warn-deprecated,-Wa$(comma)-W)

            
            CFLAGS_ISA	:=-mthumb $(AFLAGS_AUTOIT) $(AFLAGS_NOWARN)

            
            AFLAGS_ISA	:=$(CFLAGS_ISA) -Wa$(comma)-mthumb

            
            # Work around buggy relocation from gas if requested:

            
            ifeq ($(CONFIG_THUMB2_AVOID_R_ARM_THM_JUMP11),y)

            
            CFLAGS_MODULE	+=-fno-optimize-sibling-calls

            
            endif

            
            else

            
            CFLAGS_ISA	:=$(call cc-option,-marm,)

            
            AFLAGS_ISA	:=$(CFLAGS_ISA)

            
            endif


            # Need -Uarm for gcc < 3.x

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

            
            KBUILD_AFLAGS	+=$(CFLAGS_ABI) $(AFLAGS_ISA) $(arch-y) $(tune-y) -include asm/unified.h -msoft-float


            CHECKFLAGS	+= -D__arm__


            #Default value

            
            head-y		:= arch/arm/kernel/head$(MMUEXT).o


            # Text offset. This list is sorted numerically by address in order to

            
            # provide a means to avoid/resolve conflicts in multi-arch kernels.

            
            textofs-y	:= 0x00008000

            
            textofs-$(CONFIG_ARCH_CLPS711X) := 0x00028000

            
            # We don't want the htc bootloader to corrupt kernel during resume

            
            textofs-$(CONFIG_PM_H1940)      := 0x00108000

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

            
            ifeq ($(CONFIG_ARCH_SA1100),y)

            
            textofs-$(CONFIG_SA1111) := 0x00208000

            
            endif

            
            textofs-$(CONFIG_ARCH_MSM8X60) := 0x00208000

            
            textofs-$(CONFIG_ARCH_MSM8960) := 0x00208000

            
            textofs-$(CONFIG_ARCH_AXXIA) := 0x00308000


            # Machine directory name.  This list is sorted alphanumerically

            
            # by CONFIG_* macro name.

            
            machine-$(CONFIG_ARCH_ALPINE)		+= alpine

            
            machine-$(CONFIG_ARCH_AT91)		+= at91

            
            machine-$(CONFIG_ARCH_AXXIA)		+= axxia

            
            machine-$(CONFIG_ARCH_BCM)		+= bcm

            
            machine-$(CONFIG_ARCH_BERLIN)		+= berlin

            
            machine-$(CONFIG_ARCH_CLPS711X)		+= clps711x

            
            machine-$(CONFIG_ARCH_CNS3XXX)		+= cns3xxx

            
            machine-$(CONFIG_ARCH_DAVINCI)		+= davinci

            
            machine-$(CONFIG_ARCH_DIGICOLOR)	+= digicolor

            
            machine-$(CONFIG_ARCH_DOVE)		+= dove

            
            machine-$(CONFIG_ARCH_EBSA110)		+= ebsa110

            
            machine-$(CONFIG_ARCH_EFM32)		+= efm32

            
            machine-$(CONFIG_ARCH_EP93XX)		+= ep93xx

            
            machine-$(CONFIG_ARCH_EXYNOS)		+= exynos

            
            machine-$(CONFIG_ARCH_FOOTBRIDGE)	+= footbridge

            
            machine-$(CONFIG_ARCH_GEMINI)		+= gemini

            
            machine-$(CONFIG_ARCH_HIGHBANK)		+= highbank

            
            machine-$(CONFIG_ARCH_HISI)		+= hisi

            
            machine-$(CONFIG_ARCH_INTEGRATOR)	+= integrator

            
            machine-$(CONFIG_ARCH_IOP13XX)		+= iop13xx

            
            machine-$(CONFIG_ARCH_IOP32X)		+= iop32x

            
            machine-$(CONFIG_ARCH_IOP33X)		+= iop33x

            
            machine-$(CONFIG_ARCH_IXP4XX)		+= ixp4xx

            
            machine-$(CONFIG_ARCH_KEYSTONE)		+= keystone

            
            machine-$(CONFIG_ARCH_KS8695)		+= ks8695

            
            machine-$(CONFIG_ARCH_LPC32XX)		+= lpc32xx

            
            machine-$(CONFIG_ARCH_MESON)		+= meson

            
            machine-$(CONFIG_ARCH_MMP)		+= mmp

            
            machine-$(CONFIG_ARCH_MOXART)		+= moxart

            
            machine-$(CONFIG_ARCH_MV78XX0)		+= mv78xx0

            
            machine-$(CONFIG_ARCH_MVEBU)		+= mvebu

            
            machine-$(CONFIG_ARCH_MXC)		+= imx

            
            machine-$(CONFIG_ARCH_MEDIATEK)		+= mediatek

            
            machine-$(CONFIG_ARCH_MXS)		+= mxs

            
            machine-$(CONFIG_ARCH_NETX)		+= netx

            
            machine-$(CONFIG_ARCH_NOMADIK)		+= nomadik

            
            machine-$(CONFIG_ARCH_NSPIRE)		+= nspire

            
            machine-$(CONFIG_ARCH_OMAP1)		+= omap1

            
            machine-$(CONFIG_ARCH_OMAP2PLUS)	+= omap2

            
            machine-$(CONFIG_ARCH_ORION5X)		+= orion5x

            
            machine-$(CONFIG_ARCH_PICOXCELL)	+= picoxcell

            
            machine-$(CONFIG_ARCH_PXA)		+= pxa

            
            machine-$(CONFIG_ARCH_QCOM)		+= qcom

            
            machine-$(CONFIG_ARCH_REALVIEW)		+= realview

            
            machine-$(CONFIG_ARCH_ROCKCHIP)		+= rockchip

            
            machine-$(CONFIG_ARCH_RPC)		+= rpc

            
            machine-$(CONFIG_ARCH_S3C24XX)		+= s3c24xx

            
            machine-$(CONFIG_ARCH_S3C64XX)		+= s3c64xx

            
            machine-$(CONFIG_ARCH_S5PV210)		+= s5pv210

            
            machine-$(CONFIG_ARCH_SA1100)		+= sa1100

            
            machine-$(CONFIG_ARCH_SHMOBILE) 	+= shmobile

            
            machine-$(CONFIG_ARCH_SIRF)		+= prima2

            
            machine-$(CONFIG_ARCH_SOCFPGA)		+= socfpga

            
            machine-$(CONFIG_ARCH_STI)		+= sti

            
            machine-$(CONFIG_ARCH_SUNXI)		+= sunxi

            
            machine-$(CONFIG_ARCH_TEGRA)		+= tegra

            
            machine-$(CONFIG_ARCH_U300)		+= u300

            
            machine-$(CONFIG_ARCH_U8500)		+= ux500

            
            machine-$(CONFIG_ARCH_VERSATILE)	+= versatile

            
            machine-$(CONFIG_ARCH_VEXPRESS)		+= vexpress

            
            machine-$(CONFIG_ARCH_VT8500)		+= vt8500

            
            machine-$(CONFIG_ARCH_W90X900)		+= w90x900

            
            machine-$(CONFIG_ARCH_ZYNQ)		+= zynq

            
            machine-$(CONFIG_PLAT_SPEAR)		+= spear


            # Platform directory name.  This list is sorted alphanumerically

            
            # by CONFIG_* macro name.

            
            plat-$(CONFIG_ARCH_EXYNOS)	+= samsung

            
            plat-$(CONFIG_ARCH_OMAP)	+= omap

            
            plat-$(CONFIG_ARCH_S3C64XX)	+= samsung

            
            plat-$(CONFIG_ARCH_S5PV210)	+= samsung

            
            plat-$(CONFIG_PLAT_IOP)		+= iop

            
            plat-$(CONFIG_PLAT_ORION)	+= orion

            
            plat-$(CONFIG_PLAT_PXA)		+= pxa

            
            plat-$(CONFIG_PLAT_S3C24XX)	+= samsung

            
            plat-$(CONFIG_PLAT_VERSATILE)	+= versatile


            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


            # The byte offset of the kernel image in RAM from the start of RAM.

            
            TEXT_OFFSET := $(textofs-y)


            # The first directory contains additional information for the boot setup code

            
            ifneq ($(machine-y),)

            
            MACHINE  := arch/arm/mach-$(word 1,$(machine-y))/

            
            else

            
            MACHINE  :=

            
            endif

            
            ifeq ($(CONFIG_ARCH_MULTIPLATFORM),y)

            
            MACHINE  :=

            
            endif


            machdirs := $(patsubst %,arch/arm/mach-%/,$(machine-y))

            
            platdirs := $(patsubst %,arch/arm/plat-%/,$(sort $(plat-y)))


            ifneq ($(CONFIG_ARCH_MULTIPLATFORM),y)

            
            ifeq ($(KBUILD_SRC),)

            
            KBUILD_CPPFLAGS += $(patsubst %,-I%include,$(machdirs) $(platdirs))

            
            else

            
            KBUILD_CPPFLAGS += $(patsubst %,-I$(srctree)/%include,$(machdirs) $(platdirs))

            
            endif

            
            endif


            export	TEXT_OFFSET GZFLAGS MMUEXT


            # Do we have FASTFPE?

            
            FASTFPE		:=arch/arm/fastfpe

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

            
            FASTFPE_OBJ	:=$(FASTFPE)/

            
            endif


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

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

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

            
            core-$(CONFIG_XEN)		+= arch/arm/xen/

            
            core-$(CONFIG_KVM_ARM_HOST) 	+= arch/arm/kvm/

            
            core-$(CONFIG_VDSO)		+= arch/arm/vdso/


            # 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				+= arch/arm/probes/

            
            core-y				+= arch/arm/net/

            
            core-y				+= arch/arm/crypto/

            
            core-y				+= arch/arm/firmware/

            
            core-y				+= $(machdirs) $(platdirs)


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


            libs-y				:= arch/arm/lib/ $(libs-y)


            # Default target when executing plain make

            
            ifeq ($(CONFIG_XIP_KERNEL),y)

            
            KBUILD_IMAGE := xipImage

            
            else

            
            KBUILD_IMAGE := zImage

            
            endif


            # Build the DT binary blobs if we have OF configured

            
            ifeq ($(CONFIG_USE_OF),y)

            
            KBUILD_DTBS := dtbs

            
            endif


            all:	$(KBUILD_IMAGE) $(KBUILD_DTBS)


            boot := arch/arm/boot


            archprepare:

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


            # Convert bzImage to zImage

            
            bzImage: zImage


            BOOT_TARGETS	= zImage Image xipImage bootpImage uImage

            
            INSTALL_TARGETS	= zinstall uinstall install


            PHONY += bzImage $(BOOT_TARGETS) $(INSTALL_TARGETS)


            $(BOOT_TARGETS): vmlinux

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


            $(INSTALL_TARGETS):

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


            %.dtb: | scripts

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


            PHONY += dtbs dtbs_install


            dtbs: prepare scripts

            
            	$(Q)$(MAKE) $(build)=$(boot)/dts


            dtbs_install:

            
            	$(Q)$(MAKE) $(dtbinst)=$(boot)/dts


            PHONY += vdso_install

            
            vdso_install:

            
            ifeq ($(CONFIG_VDSO),y)

            
            	$(Q)$(MAKE) $(build)=arch/arm/vdso $@

            
            endif


            # 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) $@


            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  '  uImage        - U-Boot wrapped zImage'

            
              echo  '  bootpImage    - Combined zImage and initial RAM disk'

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

            
              echo  '* dtbs          - Build device tree blobs for enabled boards'

            
              echo  '  dtbs_install  - Install dtbs to $(INSTALL_DTBS_PATH)'

            
              echo  '  install       - Install uncompressed kernel'

            
              echo  '  zinstall      - Install compressed kernel'

            
              echo  '  uinstall      - Install U-Boot wrapped compressed kernel'

            
              echo  '                  Install using (your) ~/bin/$(INSTALLKERNEL) or'

            
              echo  '                  (distribution) /sbin/$(INSTALLKERNEL) or'

            
              echo  '                  install to $$(INSTALL_PATH) and run lilo'

            
              echo  '  vdso_install  - Install unstripped vdso.so to $$(INSTALL_MOD_PATH)/vdso'

            
            endef
	#
	# arch/arm/Makefile
	#
	# This file is included by the global makefile so that you can add your own
	# architecture-specific flags and dependencies.
	#
	# 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

	.NOTPARALLEL:

	# Ensure linker flags are correct
	LDFLAGS :=

	LDFLAGS_vmlinux :=-p --no-undefined -X --pic-veneer
	ifeq ($(CONFIG_CPU_ENDIAN_BE8),y)
	LDFLAGS_vmlinux += --be8
	LDFLAGS_MODULE += --be8
	endif

	OBJCOPYFLAGS :=-O binary -R .comment -S
	GZFLAGS :=-9
	#KBUILD_CFLAGS +=-pipe

	# Never generate .eh_frame
	KBUILD_CFLAGS += $(call cc-option,-fno-dwarf2-cfi-asm)

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

	# defines filename extension depending memory management type.
	ifeq ($(CONFIG_MMU),)
	MMUEXT := -nommu
	KBUILD_CFLAGS += $(call cc-option,-mno-unaligned-access)
	endif

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

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

	#
	# The Scalar Replacement of Aggregates (SRA) optimization pass in GCC 4.9 and
	# later may result in code being generated that handles signed short and signed
	# char struct members incorrectly. So disable it.
	# (https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65932)
	#
	KBUILD_CFLAGS += $(call cc-option,-fno-ipa-sra)

	# 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-$(CONFIG_CPU_32v7M) =-D__LINUX_ARM_ARCH__=7 -march=armv7-m -Wa,-march=armv7-m
	arch-$(CONFIG_CPU_32v7) =-D__LINUX_ARM_ARCH__=7 $(call cc-option,-march=armv7-a,-march=armv5t -Wa$(comma)-march=armv7-a)
	arch-$(CONFIG_CPU_32v6) =-D__LINUX_ARM_ARCH__=6 $(call cc-option,-march=armv6,-march=armv5t -Wa$(comma)-march=armv6)
	# Only override the compiler option if ARMv6. The ARMv6K extensions are
	# always available in ARMv7
	ifeq ($(CONFIG_CPU_32v6),y)
	arch-$(CONFIG_CPU_32v6K) =-D__LINUX_ARM_ARCH__=6 $(call cc-option,-march=armv6k,-march=armv5t -Wa$(comma)-march=armv6k)
	endif
	arch-$(CONFIG_CPU_32v5) =-D__LINUX_ARM_ARCH__=5 $(call cc-option,-march=armv5te,-march=armv4t)
	arch-$(CONFIG_CPU_32v4T) =-D__LINUX_ARM_ARCH__=4 -march=armv4t
	arch-$(CONFIG_CPU_32v4) =-D__LINUX_ARM_ARCH__=4 -march=armv4
	arch-$(CONFIG_CPU_32v3) =-D__LINUX_ARM_ARCH__=3 -march=armv3

	# Evaluate arch cc-option calls now
	arch-y := $(arch-y)

	# This selects how we optimise for the processor.
	tune-$(CONFIG_CPU_ARM7TDMI) =-mtune=arm7tdmi
	tune-$(CONFIG_CPU_ARM720T) =-mtune=arm7tdmi
	tune-$(CONFIG_CPU_ARM740T) =-mtune=arm7tdmi
	tune-$(CONFIG_CPU_ARM9TDMI) =-mtune=arm9tdmi
	tune-$(CONFIG_CPU_ARM940T) =-mtune=arm9tdmi
	tune-$(CONFIG_CPU_ARM946E) =$(call cc-option,-mtune=arm9e,-mtune=arm9tdmi)
	tune-$(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_FA526) =-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-$(CONFIG_CPU_XSC3) =$(call cc-option,-mtune=xscale,-mtune=strongarm110) -Wa,-mcpu=xscale
	tune-$(CONFIG_CPU_FEROCEON) =$(call cc-option,-mtune=marvell-f,-mtune=xscale)
	tune-$(CONFIG_CPU_V6) =$(call cc-option,-mtune=arm1136j-s,-mtune=strongarm)
	tune-$(CONFIG_CPU_V6K) =$(call cc-option,-mtune=arm1136j-s,-mtune=strongarm)

	# Evaluate tune cc-option calls now
	tune-y := $(tune-y)

	ifeq ($(CONFIG_AEABI),y)
	CFLAGS_ABI :=-mabi=aapcs-linux -mno-thumb-interwork -mfpu=vfp
	else
	CFLAGS_ABI :=$(call cc-option,-mapcs-32,-mabi=apcs-gnu) $(call cc-option,-mno-thumb-interwork,)
	endif

	ifeq ($(CONFIG_ARM_UNWIND),y)
	CFLAGS_ABI +=-funwind-tables
	endif

	ifeq ($(CONFIG_THUMB2_KERNEL),y)
	AFLAGS_AUTOIT :=$(call as-option,-Wa$(comma)-mimplicit-it=always,-Wa$(comma)-mauto-it)
	AFLAGS_NOWARN :=$(call as-option,-Wa$(comma)-mno-warn-deprecated,-Wa$(comma)-W)
	CFLAGS_ISA :=-mthumb $(AFLAGS_AUTOIT) $(AFLAGS_NOWARN)
	AFLAGS_ISA :=$(CFLAGS_ISA) -Wa$(comma)-mthumb
	# Work around buggy relocation from gas if requested:
	ifeq ($(CONFIG_THUMB2_AVOID_R_ARM_THM_JUMP11),y)
	CFLAGS_MODULE +=-fno-optimize-sibling-calls
	endif
	else
	CFLAGS_ISA :=$(call cc-option,-marm,)
	AFLAGS_ISA :=$(CFLAGS_ISA)
	endif

	# Need -Uarm for gcc < 3.x
	KBUILD_CFLAGS +=$(CFLAGS_ABI) $(CFLAGS_ISA) $(arch-y) $(tune-y) $(call cc-option,-mshort-load-bytes,$(call cc-option,-malignment-traps,)) -msoft-float -Uarm
	KBUILD_AFLAGS +=$(CFLAGS_ABI) $(AFLAGS_ISA) $(arch-y) $(tune-y) -include asm/unified.h -msoft-float

	CHECKFLAGS += -D__arm__

	#Default value
	head-y := arch/arm/kernel/head$(MMUEXT).o

	# Text offset. This list is sorted numerically by address in order to
	# provide a means to avoid/resolve conflicts in multi-arch kernels.
	textofs-y := 0x00008000
	textofs-$(CONFIG_ARCH_CLPS711X) := 0x00028000
	# We don't want the htc bootloader to corrupt kernel during resume
	textofs-$(CONFIG_PM_H1940) := 0x00108000
	# SA1111 DMA bug: we don't want the kernel to live in precious DMA-able memory
	ifeq ($(CONFIG_ARCH_SA1100),y)
	textofs-$(CONFIG_SA1111) := 0x00208000
	endif
	textofs-$(CONFIG_ARCH_MSM8X60) := 0x00208000
	textofs-$(CONFIG_ARCH_MSM8960) := 0x00208000
	textofs-$(CONFIG_ARCH_AXXIA) := 0x00308000

	# Machine directory name. This list is sorted alphanumerically
	# by CONFIG_* macro name.
	machine-$(CONFIG_ARCH_ALPINE) += alpine
	machine-$(CONFIG_ARCH_AT91) += at91
	machine-$(CONFIG_ARCH_AXXIA) += axxia
	machine-$(CONFIG_ARCH_BCM) += bcm
	machine-$(CONFIG_ARCH_BERLIN) += berlin
	machine-$(CONFIG_ARCH_CLPS711X) += clps711x
	machine-$(CONFIG_ARCH_CNS3XXX) += cns3xxx
	machine-$(CONFIG_ARCH_DAVINCI) += davinci
	machine-$(CONFIG_ARCH_DIGICOLOR) += digicolor
	machine-$(CONFIG_ARCH_DOVE) += dove
	machine-$(CONFIG_ARCH_EBSA110) += ebsa110
	machine-$(CONFIG_ARCH_EFM32) += efm32
	machine-$(CONFIG_ARCH_EP93XX) += ep93xx
	machine-$(CONFIG_ARCH_EXYNOS) += exynos
	machine-$(CONFIG_ARCH_FOOTBRIDGE) += footbridge
	machine-$(CONFIG_ARCH_GEMINI) += gemini
	machine-$(CONFIG_ARCH_HIGHBANK) += highbank
	machine-$(CONFIG_ARCH_HISI) += hisi
	machine-$(CONFIG_ARCH_INTEGRATOR) += integrator
	machine-$(CONFIG_ARCH_IOP13XX) += iop13xx
	machine-$(CONFIG_ARCH_IOP32X) += iop32x
	machine-$(CONFIG_ARCH_IOP33X) += iop33x
	machine-$(CONFIG_ARCH_IXP4XX) += ixp4xx
	machine-$(CONFIG_ARCH_KEYSTONE) += keystone
	machine-$(CONFIG_ARCH_KS8695) += ks8695
	machine-$(CONFIG_ARCH_LPC32XX) += lpc32xx
	machine-$(CONFIG_ARCH_MESON) += meson
	machine-$(CONFIG_ARCH_MMP) += mmp
	machine-$(CONFIG_ARCH_MOXART) += moxart
	machine-$(CONFIG_ARCH_MV78XX0) += mv78xx0
	machine-$(CONFIG_ARCH_MVEBU) += mvebu
	machine-$(CONFIG_ARCH_MXC) += imx
	machine-$(CONFIG_ARCH_MEDIATEK) += mediatek
	machine-$(CONFIG_ARCH_MXS) += mxs
	machine-$(CONFIG_ARCH_NETX) += netx
	machine-$(CONFIG_ARCH_NOMADIK) += nomadik
	machine-$(CONFIG_ARCH_NSPIRE) += nspire
	machine-$(CONFIG_ARCH_OMAP1) += omap1
	machine-$(CONFIG_ARCH_OMAP2PLUS) += omap2
	machine-$(CONFIG_ARCH_ORION5X) += orion5x
	machine-$(CONFIG_ARCH_PICOXCELL) += picoxcell
	machine-$(CONFIG_ARCH_PXA) += pxa
	machine-$(CONFIG_ARCH_QCOM) += qcom
	machine-$(CONFIG_ARCH_REALVIEW) += realview
	machine-$(CONFIG_ARCH_ROCKCHIP) += rockchip
	machine-$(CONFIG_ARCH_RPC) += rpc
	machine-$(CONFIG_ARCH_S3C24XX) += s3c24xx
	machine-$(CONFIG_ARCH_S3C64XX) += s3c64xx
	machine-$(CONFIG_ARCH_S5PV210) += s5pv210
	machine-$(CONFIG_ARCH_SA1100) += sa1100
	machine-$(CONFIG_ARCH_SHMOBILE) += shmobile
	machine-$(CONFIG_ARCH_SIRF) += prima2
	machine-$(CONFIG_ARCH_SOCFPGA) += socfpga
	machine-$(CONFIG_ARCH_STI) += sti
	machine-$(CONFIG_ARCH_SUNXI) += sunxi
	machine-$(CONFIG_ARCH_TEGRA) += tegra
	machine-$(CONFIG_ARCH_U300) += u300
	machine-$(CONFIG_ARCH_U8500) += ux500
	machine-$(CONFIG_ARCH_VERSATILE) += versatile
	machine-$(CONFIG_ARCH_VEXPRESS) += vexpress
	machine-$(CONFIG_ARCH_VT8500) += vt8500
	machine-$(CONFIG_ARCH_W90X900) += w90x900
	machine-$(CONFIG_ARCH_ZYNQ) += zynq
	machine-$(CONFIG_PLAT_SPEAR) += spear

	# Platform directory name. This list is sorted alphanumerically
	# by CONFIG_* macro name.
	plat-$(CONFIG_ARCH_EXYNOS) += samsung
	plat-$(CONFIG_ARCH_OMAP) += omap
	plat-$(CONFIG_ARCH_S3C64XX) += samsung
	plat-$(CONFIG_ARCH_S5PV210) += samsung
	plat-$(CONFIG_PLAT_IOP) += iop
	plat-$(CONFIG_PLAT_ORION) += orion
	plat-$(CONFIG_PLAT_PXA) += pxa
	plat-$(CONFIG_PLAT_S3C24XX) += samsung
	plat-$(CONFIG_PLAT_VERSATILE) += versatile

	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

	# The byte offset of the kernel image in RAM from the start of RAM.
	TEXT_OFFSET := $(textofs-y)

	# The first directory contains additional information for the boot setup code
	ifneq ($(machine-y),)
	MACHINE := arch/arm/mach-$(word 1,$(machine-y))/
	else
	MACHINE :=
	endif
	ifeq ($(CONFIG_ARCH_MULTIPLATFORM),y)
	MACHINE :=
	endif

	machdirs := $(patsubst %,arch/arm/mach-%/,$(machine-y))
	platdirs := $(patsubst %,arch/arm/plat-%/,$(sort $(plat-y)))

	ifneq ($(CONFIG_ARCH_MULTIPLATFORM),y)
	ifeq ($(KBUILD_SRC),)
	KBUILD_CPPFLAGS += $(patsubst %,-I%include,$(machdirs) $(platdirs))
	else
	KBUILD_CPPFLAGS += $(patsubst %,-I$(srctree)/%include,$(machdirs) $(platdirs))
	endif
	endif

	export TEXT_OFFSET GZFLAGS MMUEXT

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

	core-$(CONFIG_FPE_NWFPE) += arch/arm/nwfpe/
	core-$(CONFIG_FPE_FASTFPE) += $(FASTFPE_OBJ)
	core-$(CONFIG_VFP) += arch/arm/vfp/
	core-$(CONFIG_XEN) += arch/arm/xen/
	core-$(CONFIG_KVM_ARM_HOST) += arch/arm/kvm/
	core-$(CONFIG_VDSO) += arch/arm/vdso/

	# 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 += arch/arm/probes/
	core-y += arch/arm/net/
	core-y += arch/arm/crypto/
	core-y += arch/arm/firmware/
	core-y += $(machdirs) $(platdirs)

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

	libs-y := arch/arm/lib/ $(libs-y)

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

	# Build the DT binary blobs if we have OF configured
	ifeq ($(CONFIG_USE_OF),y)
	KBUILD_DTBS := dtbs
	endif

	all: $(KBUILD_IMAGE) $(KBUILD_DTBS)

	boot := arch/arm/boot

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

	# Convert bzImage to zImage
	bzImage: zImage

	BOOT_TARGETS = zImage Image xipImage bootpImage uImage
	INSTALL_TARGETS = zinstall uinstall install

	PHONY += bzImage $(BOOT_TARGETS) $(INSTALL_TARGETS)

	$(BOOT_TARGETS): vmlinux
	$(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $(boot)/$@

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

	%.dtb: \| scripts
	$(Q)$(MAKE) $(build)=$(boot)/dts MACHINE=$(MACHINE) $(boot)/dts/$@

	PHONY += dtbs dtbs_install

	dtbs: prepare scripts
	$(Q)$(MAKE) $(build)=$(boot)/dts

	dtbs_install:
	$(Q)$(MAKE) $(dtbinst)=$(boot)/dts

	PHONY += vdso_install
	vdso_install:
	ifeq ($(CONFIG_VDSO),y)
	$(Q)$(MAKE) $(build)=arch/arm/vdso $@
	endif

	# 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) $@


	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 ' uImage - U-Boot wrapped zImage'
	echo ' bootpImage - Combined zImage and initial RAM disk'
	echo ' (supply initrd image via make variable INITRD=<path>)'
	echo '* dtbs - Build device tree blobs for enabled boards'
	echo ' dtbs_install - Install dtbs to $(INSTALL_DTBS_PATH)'
	echo ' install - Install uncompressed kernel'
	echo ' zinstall - Install compressed kernel'
	echo ' uinstall - Install U-Boot wrapped compressed kernel'
	echo ' Install using (your) ~/bin/$(INSTALLKERNEL) or'
	echo ' (distribution) /sbin/$(INSTALLKERNEL) or'
	echo ' install to $$(INSTALL_PATH) and run lilo'
	echo ' vdso_install - Install unstripped vdso.so to $$(INSTALL_MOD_PATH)/vdso'
	endef