1# 2# arch/arm/Makefile 3# 4# This file is included by the global makefile so that you can add your own 5# architecture-specific flags and dependencies. 6# 7# This file is subject to the terms and conditions of the GNU General Public 8# License. See the file "COPYING" in the main directory of this archive 9# for more details. 10# 11# Copyright (C) 1995-2001 by Russell King 12 13LDFLAGS_vmlinux :=-p --no-undefined -X 14ifeq ($(CONFIG_CPU_ENDIAN_BE8),y) 15LDFLAGS_vmlinux += --be8 16endif 17 18OBJCOPYFLAGS :=-O binary -R .comment -S 19GZFLAGS :=-9 20#KBUILD_CFLAGS +=-pipe 21# Explicitly specifiy 32-bit ARM ISA since toolchain default can be -mthumb: 22KBUILD_CFLAGS +=$(call cc-option,-marm,) 23 24# Never generate .eh_frame 25KBUILD_CFLAGS += $(call cc-option,-fno-dwarf2-cfi-asm) 26 27# Do not use arch/arm/defconfig - it's always outdated. 28# Select a platform tht is kept up-to-date 29KBUILD_DEFCONFIG := versatile_defconfig 30 31# defines filename extension depending memory management type. 32ifeq ($(CONFIG_MMU),) 33MMUEXT := -nommu 34endif 35 36ifeq ($(CONFIG_FRAME_POINTER),y) 37KBUILD_CFLAGS +=-fno-omit-frame-pointer -mapcs -mno-sched-prolog 38endif 39 40ifeq ($(CONFIG_CC_STACKPROTECTOR),y) 41KBUILD_CFLAGS +=-fstack-protector 42endif 43 44ifeq ($(CONFIG_CPU_BIG_ENDIAN),y) 45KBUILD_CPPFLAGS += -mbig-endian 46AS += -EB 47LD += -EB 48else 49KBUILD_CPPFLAGS += -mlittle-endian 50AS += -EL 51LD += -EL 52endif 53 54comma = , 55 56# This selects which instruction set is used. 57# Note that GCC does not numerically define an architecture version 58# macro, but instead defines a whole series of macros which makes 59# testing for a specific architecture or later rather impossible. 60arch-$(CONFIG_CPU_32v7) :=-D__LINUX_ARM_ARCH__=7 $(call cc-option,-march=armv7-a,-march=armv5t -Wa$(comma)-march=armv7-a) 61arch-$(CONFIG_CPU_32v6) :=-D__LINUX_ARM_ARCH__=6 $(call cc-option,-march=armv6,-march=armv5t -Wa$(comma)-march=armv6) 62# Only override the compiler option if ARMv6. The ARMv6K extensions are 63# always available in ARMv7 64ifeq ($(CONFIG_CPU_32v6),y) 65arch-$(CONFIG_CPU_32v6K) :=-D__LINUX_ARM_ARCH__=6 $(call cc-option,-march=armv6k,-march=armv5t -Wa$(comma)-march=armv6k) 66endif 67arch-$(CONFIG_CPU_32v5) :=-D__LINUX_ARM_ARCH__=5 $(call cc-option,-march=armv5te,-march=armv4t) 68arch-$(CONFIG_CPU_32v4T) :=-D__LINUX_ARM_ARCH__=4 -march=armv4t 69arch-$(CONFIG_CPU_32v4) :=-D__LINUX_ARM_ARCH__=4 -march=armv4 70arch-$(CONFIG_CPU_32v3) :=-D__LINUX_ARM_ARCH__=3 -march=armv3 71 72# This selects how we optimise for the processor. 73tune-$(CONFIG_CPU_ARM610) :=-mtune=arm610 74tune-$(CONFIG_CPU_ARM710) :=-mtune=arm710 75tune-$(CONFIG_CPU_ARM7TDMI) :=-mtune=arm7tdmi 76tune-$(CONFIG_CPU_ARM720T) :=-mtune=arm7tdmi 77tune-$(CONFIG_CPU_ARM740T) :=-mtune=arm7tdmi 78tune-$(CONFIG_CPU_ARM9TDMI) :=-mtune=arm9tdmi 79tune-$(CONFIG_CPU_ARM940T) :=-mtune=arm9tdmi 80tune-$(CONFIG_CPU_ARM946E) :=$(call cc-option,-mtune=arm9e,-mtune=arm9tdmi) 81tune-$(CONFIG_CPU_ARM920T) :=-mtune=arm9tdmi 82tune-$(CONFIG_CPU_ARM922T) :=-mtune=arm9tdmi 83tune-$(CONFIG_CPU_ARM925T) :=-mtune=arm9tdmi 84tune-$(CONFIG_CPU_ARM926T) :=-mtune=arm9tdmi 85tune-$(CONFIG_CPU_FA526) :=-mtune=arm9tdmi 86tune-$(CONFIG_CPU_SA110) :=-mtune=strongarm110 87tune-$(CONFIG_CPU_SA1100) :=-mtune=strongarm1100 88tune-$(CONFIG_CPU_XSCALE) :=$(call cc-option,-mtune=xscale,-mtune=strongarm110) -Wa,-mcpu=xscale 89tune-$(CONFIG_CPU_XSC3) :=$(call cc-option,-mtune=xscale,-mtune=strongarm110) -Wa,-mcpu=xscale 90tune-$(CONFIG_CPU_FEROCEON) :=$(call cc-option,-mtune=marvell-f,-mtune=xscale) 91tune-$(CONFIG_CPU_V6) :=$(call cc-option,-mtune=arm1136j-s,-mtune=strongarm) 92tune-$(CONFIG_CPU_V6K) :=$(call cc-option,-mtune=arm1136j-s,-mtune=strongarm) 93 94ifeq ($(CONFIG_AEABI),y) 95CFLAGS_ABI :=-mabi=aapcs-linux -mno-thumb-interwork 96else 97CFLAGS_ABI :=$(call cc-option,-mapcs-32,-mabi=apcs-gnu) $(call cc-option,-mno-thumb-interwork,) 98endif 99 100ifeq ($(CONFIG_ARM_UNWIND),y) 101CFLAGS_ABI +=-funwind-tables 102endif 103 104ifeq ($(CONFIG_THUMB2_KERNEL),y) 105AFLAGS_AUTOIT :=$(call as-option,-Wa$(comma)-mimplicit-it=always,-Wa$(comma)-mauto-it) 106AFLAGS_NOWARN :=$(call as-option,-Wa$(comma)-mno-warn-deprecated,-Wa$(comma)-W) 107CFLAGS_THUMB2 :=-mthumb $(AFLAGS_AUTOIT) $(AFLAGS_NOWARN) 108AFLAGS_THUMB2 :=$(CFLAGS_THUMB2) -Wa$(comma)-mthumb 109# Work around buggy relocation from gas if requested: 110ifeq ($(CONFIG_THUMB2_AVOID_R_ARM_THM_JUMP11),y) 111CFLAGS_MODULE +=-fno-optimize-sibling-calls 112endif 113endif 114 115# Need -Uarm for gcc < 3.x 116KBUILD_CFLAGS +=$(CFLAGS_ABI) $(CFLAGS_THUMB2) $(arch-y) $(tune-y) $(call cc-option,-mshort-load-bytes,$(call cc-option,-malignment-traps,)) -msoft-float -Uarm 117KBUILD_AFLAGS +=$(CFLAGS_ABI) $(AFLAGS_THUMB2) $(arch-y) $(tune-y) -include asm/unified.h -msoft-float 118 119CHECKFLAGS += -D__arm__ 120 121#Default value 122head-y := arch/arm/kernel/head$(MMUEXT).o arch/arm/kernel/init_task.o 123textofs-y := 0x00008000 124textofs-$(CONFIG_ARCH_CLPS711X) := 0x00028000 125# We don't want the htc bootloader to corrupt kernel during resume 126textofs-$(CONFIG_PM_H1940) := 0x00108000 127# SA1111 DMA bug: we don't want the kernel to live in precious DMA-able memory 128ifeq ($(CONFIG_ARCH_SA1100),y) 129textofs-$(CONFIG_SA1111) := 0x00208000 130endif 131textofs-$(CONFIG_ARCH_MSM7X30) := 0x00208000 132textofs-$(CONFIG_ARCH_MSM8X60) := 0x00208000 133textofs-$(CONFIG_ARCH_MSM8960) := 0x00208000 134 135# Machine directory name. This list is sorted alphanumerically 136# by CONFIG_* macro name. 137machine-$(CONFIG_ARCH_AT91) := at91 138machine-$(CONFIG_ARCH_BCMRING) := bcmring 139machine-$(CONFIG_ARCH_CLPS711X) := clps711x 140machine-$(CONFIG_ARCH_CNS3XXX) := cns3xxx 141machine-$(CONFIG_ARCH_DAVINCI) := davinci 142machine-$(CONFIG_ARCH_DOVE) := dove 143machine-$(CONFIG_ARCH_EBSA110) := ebsa110 144machine-$(CONFIG_ARCH_EP93XX) := ep93xx 145machine-$(CONFIG_ARCH_GEMINI) := gemini 146machine-$(CONFIG_ARCH_H720X) := h720x 147machine-$(CONFIG_ARCH_HIGHBANK) := highbank 148machine-$(CONFIG_ARCH_INTEGRATOR) := integrator 149machine-$(CONFIG_ARCH_IOP13XX) := iop13xx 150machine-$(CONFIG_ARCH_IOP32X) := iop32x 151machine-$(CONFIG_ARCH_IOP33X) := iop33x 152machine-$(CONFIG_ARCH_IXP2000) := ixp2000 153machine-$(CONFIG_ARCH_IXP23XX) := ixp23xx 154machine-$(CONFIG_ARCH_IXP4XX) := ixp4xx 155machine-$(CONFIG_ARCH_KIRKWOOD) := kirkwood 156machine-$(CONFIG_ARCH_KS8695) := ks8695 157machine-$(CONFIG_ARCH_LPC32XX) := lpc32xx 158machine-$(CONFIG_ARCH_MMP) := mmp 159machine-$(CONFIG_ARCH_MSM) := msm 160machine-$(CONFIG_ARCH_MV78XX0) := mv78xx0 161machine-$(CONFIG_ARCH_IMX_V4_V5) := imx 162machine-$(CONFIG_ARCH_IMX_V6_V7) := imx 163machine-$(CONFIG_ARCH_MXS) := mxs 164machine-$(CONFIG_ARCH_NETX) := netx 165machine-$(CONFIG_ARCH_NOMADIK) := nomadik 166machine-$(CONFIG_ARCH_OMAP1) := omap1 167machine-$(CONFIG_ARCH_OMAP2) := omap2 168machine-$(CONFIG_ARCH_OMAP3) := omap2 169machine-$(CONFIG_ARCH_OMAP4) := omap2 170machine-$(CONFIG_ARCH_ORION5X) := orion5x 171machine-$(CONFIG_ARCH_PICOXCELL) := picoxcell 172machine-$(CONFIG_ARCH_PNX4008) := pnx4008 173machine-$(CONFIG_ARCH_PRIMA2) := prima2 174machine-$(CONFIG_ARCH_PXA) := pxa 175machine-$(CONFIG_ARCH_REALVIEW) := realview 176machine-$(CONFIG_ARCH_RPC) := rpc 177machine-$(CONFIG_ARCH_S3C2410) := s3c2410 s3c2412 s3c2416 s3c2440 s3c2443 178machine-$(CONFIG_ARCH_S3C64XX) := s3c64xx 179machine-$(CONFIG_ARCH_S5P64X0) := s5p64x0 180machine-$(CONFIG_ARCH_S5PC100) := s5pc100 181machine-$(CONFIG_ARCH_S5PV210) := s5pv210 182machine-$(CONFIG_ARCH_EXYNOS4) := exynos 183machine-$(CONFIG_ARCH_SA1100) := sa1100 184machine-$(CONFIG_ARCH_SHARK) := shark 185machine-$(CONFIG_ARCH_SHMOBILE) := shmobile 186machine-$(CONFIG_ARCH_TEGRA) := tegra 187machine-$(CONFIG_ARCH_U300) := u300 188machine-$(CONFIG_ARCH_U8500) := ux500 189machine-$(CONFIG_ARCH_VERSATILE) := versatile 190machine-$(CONFIG_ARCH_VEXPRESS) := vexpress 191machine-$(CONFIG_ARCH_VT8500) := vt8500 192machine-$(CONFIG_ARCH_W90X900) := w90x900 193machine-$(CONFIG_FOOTBRIDGE) := footbridge 194machine-$(CONFIG_MACH_SPEAR300) := spear3xx 195machine-$(CONFIG_MACH_SPEAR310) := spear3xx 196machine-$(CONFIG_MACH_SPEAR320) := spear3xx 197machine-$(CONFIG_MACH_SPEAR600) := spear6xx 198machine-$(CONFIG_ARCH_ZYNQ) := zynq 199 200# Platform directory name. This list is sorted alphanumerically 201# by CONFIG_* macro name. 202plat-$(CONFIG_ARCH_MXC) := mxc 203plat-$(CONFIG_ARCH_OMAP) := omap 204plat-$(CONFIG_ARCH_S3C64XX) := samsung 205plat-$(CONFIG_ARCH_ZYNQ) := versatile 206plat-$(CONFIG_PLAT_IOP) := iop 207plat-$(CONFIG_PLAT_NOMADIK) := nomadik 208plat-$(CONFIG_PLAT_ORION) := orion 209plat-$(CONFIG_PLAT_PXA) := pxa 210plat-$(CONFIG_PLAT_S3C24XX) := s3c24xx samsung 211plat-$(CONFIG_PLAT_S5P) := s5p samsung 212plat-$(CONFIG_PLAT_SPEAR) := spear 213plat-$(CONFIG_PLAT_VERSATILE) := versatile 214 215ifeq ($(CONFIG_ARCH_EBSA110),y) 216# This is what happens if you forget the IOCS16 line. 217# PCMCIA cards stop working. 218CFLAGS_3c589_cs.o :=-DISA_SIXTEEN_BIT_PERIPHERAL 219export CFLAGS_3c589_cs.o 220endif 221 222# The byte offset of the kernel image in RAM from the start of RAM. 223TEXT_OFFSET := $(textofs-y) 224 225# The first directory contains additional information for the boot setup code 226ifneq ($(machine-y),) 227MACHINE := arch/arm/mach-$(word 1,$(machine-y))/ 228else 229MACHINE := 230endif 231 232machdirs := $(patsubst %,arch/arm/mach-%/,$(machine-y)) 233platdirs := $(patsubst %,arch/arm/plat-%/,$(plat-y)) 234 235ifeq ($(KBUILD_SRC),) 236KBUILD_CPPFLAGS += $(patsubst %,-I%include,$(machdirs) $(platdirs)) 237else 238KBUILD_CPPFLAGS += $(patsubst %,-I$(srctree)/%include,$(machdirs) $(platdirs)) 239endif 240 241export TEXT_OFFSET GZFLAGS MMUEXT 242 243# Do we have FASTFPE? 244FASTFPE :=arch/arm/fastfpe 245ifeq ($(FASTFPE),$(wildcard $(FASTFPE))) 246FASTFPE_OBJ :=$(FASTFPE)/ 247endif 248 249core-$(CONFIG_FPE_NWFPE) += arch/arm/nwfpe/ 250core-$(CONFIG_FPE_FASTFPE) += $(FASTFPE_OBJ) 251core-$(CONFIG_VFP) += arch/arm/vfp/ 252 253# If we have a machine-specific directory, then include it in the build. 254core-y += arch/arm/kernel/ arch/arm/mm/ arch/arm/common/ 255core-y += $(machdirs) $(platdirs) 256 257drivers-$(CONFIG_OPROFILE) += arch/arm/oprofile/ 258 259libs-y := arch/arm/lib/ $(libs-y) 260 261# Default target when executing plain make 262ifeq ($(CONFIG_XIP_KERNEL),y) 263KBUILD_IMAGE := xipImage 264else 265KBUILD_IMAGE := zImage 266endif 267 268all: $(KBUILD_IMAGE) 269 270boot := arch/arm/boot 271 272archprepare: 273 $(Q)$(MAKE) $(build)=arch/arm/tools include/generated/mach-types.h 274 275# Convert bzImage to zImage 276bzImage: zImage 277 278zImage Image xipImage bootpImage uImage: vmlinux 279 $(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $(boot)/$@ 280 281zinstall uinstall install: vmlinux 282 $(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $@ 283 284%.dtb: 285 $(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $(boot)/$@ 286 287dtbs: 288 $(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $(boot)/$@ 289 290# We use MRPROPER_FILES and CLEAN_FILES now 291archclean: 292 $(Q)$(MAKE) $(clean)=$(boot) 293 294# My testing targets (bypasses dependencies) 295bp:; $(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $(boot)/bootpImage 296i zi:; $(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $@ 297 298 299define archhelp 300 echo '* zImage - Compressed kernel image (arch/$(ARCH)/boot/zImage)' 301 echo ' Image - Uncompressed kernel image (arch/$(ARCH)/boot/Image)' 302 echo '* xipImage - XIP kernel image, if configured (arch/$(ARCH)/boot/xipImage)' 303 echo ' uImage - U-Boot wrapped zImage' 304 echo ' bootpImage - Combined zImage and initial RAM disk' 305 echo ' (supply initrd image via make variable INITRD=<path>)' 306 echo ' dtbs - Build device tree blobs for enabled boards' 307 echo ' install - Install uncompressed kernel' 308 echo ' zinstall - Install compressed kernel' 309 echo ' uinstall - Install U-Boot wrapped compressed kernel' 310 echo ' Install using (your) ~/bin/$(INSTALLKERNEL) or' 311 echo ' (distribution) /sbin/$(INSTALLKERNEL) or' 312 echo ' install to $$(INSTALL_PATH) and run lilo' 313endef 314