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 13# Ensure linker flags are correct 14LDFLAGS := 15 16LDFLAGS_vmlinux :=-p --no-undefined -X 17ifeq ($(CONFIG_CPU_ENDIAN_BE8),y) 18LDFLAGS_vmlinux += --be8 19endif 20 21OBJCOPYFLAGS :=-O binary -R .comment -S 22GZFLAGS :=-9 23#KBUILD_CFLAGS +=-pipe 24# Explicitly specifiy 32-bit ARM ISA since toolchain default can be -mthumb: 25KBUILD_CFLAGS +=$(call cc-option,-marm,) 26 27# Never generate .eh_frame 28KBUILD_CFLAGS += $(call cc-option,-fno-dwarf2-cfi-asm) 29 30# Do not use arch/arm/defconfig - it's always outdated. 31# Select a platform tht is kept up-to-date 32KBUILD_DEFCONFIG := versatile_defconfig 33 34# defines filename extension depending memory management type. 35ifeq ($(CONFIG_MMU),) 36MMUEXT := -nommu 37endif 38 39ifeq ($(CONFIG_FRAME_POINTER),y) 40KBUILD_CFLAGS +=-fno-omit-frame-pointer -mapcs -mno-sched-prolog 41endif 42 43ifeq ($(CONFIG_CC_STACKPROTECTOR),y) 44KBUILD_CFLAGS +=-fstack-protector 45endif 46 47ifeq ($(CONFIG_CPU_BIG_ENDIAN),y) 48KBUILD_CPPFLAGS += -mbig-endian 49AS += -EB 50LD += -EB 51else 52KBUILD_CPPFLAGS += -mlittle-endian 53AS += -EL 54LD += -EL 55endif 56 57comma = , 58 59# This selects which instruction set is used. 60# Note that GCC does not numerically define an architecture version 61# macro, but instead defines a whole series of macros which makes 62# testing for a specific architecture or later rather impossible. 63arch-$(CONFIG_CPU_32v7) :=-D__LINUX_ARM_ARCH__=7 $(call cc-option,-march=armv7-a,-march=armv5t -Wa$(comma)-march=armv7-a) 64arch-$(CONFIG_CPU_32v6) :=-D__LINUX_ARM_ARCH__=6 $(call cc-option,-march=armv6,-march=armv5t -Wa$(comma)-march=armv6) 65# Only override the compiler option if ARMv6. The ARMv6K extensions are 66# always available in ARMv7 67ifeq ($(CONFIG_CPU_32v6),y) 68arch-$(CONFIG_CPU_32v6K) :=-D__LINUX_ARM_ARCH__=6 $(call cc-option,-march=armv6k,-march=armv5t -Wa$(comma)-march=armv6k) 69endif 70arch-$(CONFIG_CPU_32v5) :=-D__LINUX_ARM_ARCH__=5 $(call cc-option,-march=armv5te,-march=armv4t) 71arch-$(CONFIG_CPU_32v4T) :=-D__LINUX_ARM_ARCH__=4 -march=armv4t 72arch-$(CONFIG_CPU_32v4) :=-D__LINUX_ARM_ARCH__=4 -march=armv4 73arch-$(CONFIG_CPU_32v3) :=-D__LINUX_ARM_ARCH__=3 -march=armv3 74 75# This selects how we optimise for the processor. 76tune-$(CONFIG_CPU_ARM7TDMI) :=-mtune=arm7tdmi 77tune-$(CONFIG_CPU_ARM720T) :=-mtune=arm7tdmi 78tune-$(CONFIG_CPU_ARM740T) :=-mtune=arm7tdmi 79tune-$(CONFIG_CPU_ARM9TDMI) :=-mtune=arm9tdmi 80tune-$(CONFIG_CPU_ARM940T) :=-mtune=arm9tdmi 81tune-$(CONFIG_CPU_ARM946E) :=$(call cc-option,-mtune=arm9e,-mtune=arm9tdmi) 82tune-$(CONFIG_CPU_ARM920T) :=-mtune=arm9tdmi 83tune-$(CONFIG_CPU_ARM922T) :=-mtune=arm9tdmi 84tune-$(CONFIG_CPU_ARM925T) :=-mtune=arm9tdmi 85tune-$(CONFIG_CPU_ARM926T) :=-mtune=arm9tdmi 86tune-$(CONFIG_CPU_FA526) :=-mtune=arm9tdmi 87tune-$(CONFIG_CPU_SA110) :=-mtune=strongarm110 88tune-$(CONFIG_CPU_SA1100) :=-mtune=strongarm1100 89tune-$(CONFIG_CPU_XSCALE) :=$(call cc-option,-mtune=xscale,-mtune=strongarm110) -Wa,-mcpu=xscale 90tune-$(CONFIG_CPU_XSC3) :=$(call cc-option,-mtune=xscale,-mtune=strongarm110) -Wa,-mcpu=xscale 91tune-$(CONFIG_CPU_FEROCEON) :=$(call cc-option,-mtune=marvell-f,-mtune=xscale) 92tune-$(CONFIG_CPU_V6) :=$(call cc-option,-mtune=arm1136j-s,-mtune=strongarm) 93tune-$(CONFIG_CPU_V6K) :=$(call cc-option,-mtune=arm1136j-s,-mtune=strongarm) 94 95ifeq ($(CONFIG_AEABI),y) 96CFLAGS_ABI :=-mabi=aapcs-linux -mno-thumb-interwork 97else 98CFLAGS_ABI :=$(call cc-option,-mapcs-32,-mabi=apcs-gnu) $(call cc-option,-mno-thumb-interwork,) 99endif 100 101ifeq ($(CONFIG_ARM_UNWIND),y) 102CFLAGS_ABI +=-funwind-tables 103endif 104 105ifeq ($(CONFIG_THUMB2_KERNEL),y) 106AFLAGS_AUTOIT :=$(call as-option,-Wa$(comma)-mimplicit-it=always,-Wa$(comma)-mauto-it) 107AFLAGS_NOWARN :=$(call as-option,-Wa$(comma)-mno-warn-deprecated,-Wa$(comma)-W) 108CFLAGS_THUMB2 :=-mthumb $(AFLAGS_AUTOIT) $(AFLAGS_NOWARN) 109AFLAGS_THUMB2 :=$(CFLAGS_THUMB2) -Wa$(comma)-mthumb 110# Work around buggy relocation from gas if requested: 111ifeq ($(CONFIG_THUMB2_AVOID_R_ARM_THM_JUMP11),y) 112CFLAGS_MODULE +=-fno-optimize-sibling-calls 113endif 114endif 115 116# Need -Uarm for gcc < 3.x 117KBUILD_CFLAGS +=$(CFLAGS_ABI) $(CFLAGS_THUMB2) $(arch-y) $(tune-y) $(call cc-option,-mshort-load-bytes,$(call cc-option,-malignment-traps,)) -msoft-float -Uarm 118KBUILD_AFLAGS +=$(CFLAGS_ABI) $(AFLAGS_THUMB2) $(arch-y) $(tune-y) -include asm/unified.h -msoft-float 119 120CHECKFLAGS += -D__arm__ 121 122#Default value 123head-y := arch/arm/kernel/head$(MMUEXT).o 124textofs-y := 0x00008000 125textofs-$(CONFIG_ARCH_CLPS711X) := 0x00028000 126# We don't want the htc bootloader to corrupt kernel during resume 127textofs-$(CONFIG_PM_H1940) := 0x00108000 128# SA1111 DMA bug: we don't want the kernel to live in precious DMA-able memory 129ifeq ($(CONFIG_ARCH_SA1100),y) 130textofs-$(CONFIG_SA1111) := 0x00208000 131endif 132textofs-$(CONFIG_ARCH_MSM7X30) := 0x00208000 133textofs-$(CONFIG_ARCH_MSM8X60) := 0x00208000 134textofs-$(CONFIG_ARCH_MSM8960) := 0x00208000 135 136# Machine directory name. This list is sorted alphanumerically 137# by CONFIG_* macro name. 138machine-$(CONFIG_ARCH_AT91) := at91 139machine-$(CONFIG_ARCH_BCMRING) := bcmring 140machine-$(CONFIG_ARCH_CLPS711X) := clps711x 141machine-$(CONFIG_ARCH_CNS3XXX) := cns3xxx 142machine-$(CONFIG_ARCH_DAVINCI) := davinci 143machine-$(CONFIG_ARCH_DOVE) := dove 144machine-$(CONFIG_ARCH_EBSA110) := ebsa110 145machine-$(CONFIG_ARCH_EP93XX) := ep93xx 146machine-$(CONFIG_ARCH_GEMINI) := gemini 147machine-$(CONFIG_ARCH_H720X) := h720x 148machine-$(CONFIG_ARCH_HIGHBANK) := highbank 149machine-$(CONFIG_ARCH_INTEGRATOR) := integrator 150machine-$(CONFIG_ARCH_IOP13XX) := iop13xx 151machine-$(CONFIG_ARCH_IOP32X) := iop32x 152machine-$(CONFIG_ARCH_IOP33X) := iop33x 153machine-$(CONFIG_ARCH_IXP4XX) := ixp4xx 154machine-$(CONFIG_ARCH_KIRKWOOD) := kirkwood 155machine-$(CONFIG_ARCH_KS8695) := ks8695 156machine-$(CONFIG_ARCH_LPC32XX) := lpc32xx 157machine-$(CONFIG_ARCH_MMP) := mmp 158machine-$(CONFIG_ARCH_MSM) := msm 159machine-$(CONFIG_ARCH_MV78XX0) := mv78xx0 160machine-$(CONFIG_ARCH_IMX_V4_V5) := imx 161machine-$(CONFIG_ARCH_IMX_V6_V7) := imx 162machine-$(CONFIG_ARCH_MXS) := mxs 163machine-$(CONFIG_ARCH_MVEBU) := mvebu 164machine-$(CONFIG_ARCH_NETX) := netx 165machine-$(CONFIG_ARCH_NOMADIK) := nomadik 166machine-$(CONFIG_ARCH_OMAP1) := omap1 167machine-$(CONFIG_ARCH_OMAP2PLUS) := omap2 168machine-$(CONFIG_ARCH_ORION5X) := orion5x 169machine-$(CONFIG_ARCH_PICOXCELL) := picoxcell 170machine-$(CONFIG_ARCH_PNX4008) := pnx4008 171machine-$(CONFIG_ARCH_PRIMA2) := prima2 172machine-$(CONFIG_ARCH_PXA) := pxa 173machine-$(CONFIG_ARCH_REALVIEW) := realview 174machine-$(CONFIG_ARCH_RPC) := rpc 175machine-$(CONFIG_ARCH_S3C24XX) := s3c24xx s3c2412 s3c2440 176machine-$(CONFIG_ARCH_S3C64XX) := s3c64xx 177machine-$(CONFIG_ARCH_S5P64X0) := s5p64x0 178machine-$(CONFIG_ARCH_S5PC100) := s5pc100 179machine-$(CONFIG_ARCH_S5PV210) := s5pv210 180machine-$(CONFIG_ARCH_EXYNOS4) := exynos 181machine-$(CONFIG_ARCH_EXYNOS5) := exynos 182machine-$(CONFIG_ARCH_SA1100) := sa1100 183machine-$(CONFIG_ARCH_SHARK) := shark 184machine-$(CONFIG_ARCH_SHMOBILE) := shmobile 185machine-$(CONFIG_ARCH_TEGRA) := tegra 186machine-$(CONFIG_ARCH_U300) := u300 187machine-$(CONFIG_ARCH_U8500) := ux500 188machine-$(CONFIG_ARCH_VERSATILE) := versatile 189machine-$(CONFIG_ARCH_VEXPRESS) := vexpress 190machine-$(CONFIG_ARCH_VT8500) := vt8500 191machine-$(CONFIG_ARCH_W90X900) := w90x900 192machine-$(CONFIG_FOOTBRIDGE) := footbridge 193machine-$(CONFIG_ARCH_SOCFPGA) := socfpga 194machine-$(CONFIG_MACH_SPEAR1310) := spear13xx 195machine-$(CONFIG_MACH_SPEAR1340) := spear13xx 196machine-$(CONFIG_MACH_SPEAR300) := spear3xx 197machine-$(CONFIG_MACH_SPEAR310) := spear3xx 198machine-$(CONFIG_MACH_SPEAR320) := spear3xx 199machine-$(CONFIG_MACH_SPEAR600) := spear6xx 200machine-$(CONFIG_ARCH_ZYNQ) := zynq 201 202# Platform directory name. This list is sorted alphanumerically 203# by CONFIG_* macro name. 204plat-$(CONFIG_ARCH_MXC) := mxc 205plat-$(CONFIG_ARCH_OMAP) := omap 206plat-$(CONFIG_ARCH_S3C64XX) := samsung 207plat-$(CONFIG_ARCH_ZYNQ) := versatile 208plat-$(CONFIG_PLAT_IOP) := iop 209plat-$(CONFIG_PLAT_NOMADIK) := nomadik 210plat-$(CONFIG_PLAT_ORION) := orion 211plat-$(CONFIG_PLAT_PXA) := pxa 212plat-$(CONFIG_PLAT_S3C24XX) := s3c24xx samsung 213plat-$(CONFIG_PLAT_S5P) := samsung 214plat-$(CONFIG_PLAT_SPEAR) := spear 215plat-$(CONFIG_PLAT_VERSATILE) := versatile 216 217ifeq ($(CONFIG_ARCH_EBSA110),y) 218# This is what happens if you forget the IOCS16 line. 219# PCMCIA cards stop working. 220CFLAGS_3c589_cs.o :=-DISA_SIXTEEN_BIT_PERIPHERAL 221export CFLAGS_3c589_cs.o 222endif 223 224# The byte offset of the kernel image in RAM from the start of RAM. 225TEXT_OFFSET := $(textofs-y) 226 227# The first directory contains additional information for the boot setup code 228ifneq ($(machine-y),) 229MACHINE := arch/arm/mach-$(word 1,$(machine-y))/ 230else 231MACHINE := 232endif 233 234machdirs := $(patsubst %,arch/arm/mach-%/,$(machine-y)) 235platdirs := $(patsubst %,arch/arm/plat-%/,$(plat-y)) 236 237ifeq ($(KBUILD_SRC),) 238KBUILD_CPPFLAGS += $(patsubst %,-I%include,$(machdirs) $(platdirs)) 239else 240KBUILD_CPPFLAGS += $(patsubst %,-I$(srctree)/%include,$(machdirs) $(platdirs)) 241endif 242 243export TEXT_OFFSET GZFLAGS MMUEXT 244 245# Do we have FASTFPE? 246FASTFPE :=arch/arm/fastfpe 247ifeq ($(FASTFPE),$(wildcard $(FASTFPE))) 248FASTFPE_OBJ :=$(FASTFPE)/ 249endif 250 251core-$(CONFIG_FPE_NWFPE) += arch/arm/nwfpe/ 252core-$(CONFIG_FPE_FASTFPE) += $(FASTFPE_OBJ) 253core-$(CONFIG_VFP) += arch/arm/vfp/ 254 255# If we have a machine-specific directory, then include it in the build. 256core-y += arch/arm/kernel/ arch/arm/mm/ arch/arm/common/ 257core-y += arch/arm/net/ 258core-y += $(machdirs) $(platdirs) 259 260drivers-$(CONFIG_OPROFILE) += arch/arm/oprofile/ 261 262libs-y := arch/arm/lib/ $(libs-y) 263 264# Default target when executing plain make 265ifeq ($(CONFIG_XIP_KERNEL),y) 266KBUILD_IMAGE := xipImage 267else 268KBUILD_IMAGE := zImage 269endif 270 271all: $(KBUILD_IMAGE) 272 273boot := arch/arm/boot 274 275archprepare: 276 $(Q)$(MAKE) $(build)=arch/arm/tools include/generated/mach-types.h 277 278# Convert bzImage to zImage 279bzImage: zImage 280 281zImage Image xipImage bootpImage uImage: vmlinux 282 $(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $(boot)/$@ 283 284zinstall uinstall install: vmlinux 285 $(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $@ 286 287%.dtb: 288 $(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $(boot)/$@ 289 290dtbs: 291 $(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $(boot)/$@ 292 293# We use MRPROPER_FILES and CLEAN_FILES now 294archclean: 295 $(Q)$(MAKE) $(clean)=$(boot) 296 297# My testing targets (bypasses dependencies) 298bp:; $(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $(boot)/bootpImage 299i zi:; $(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $@ 300 301 302define archhelp 303 echo '* zImage - Compressed kernel image (arch/$(ARCH)/boot/zImage)' 304 echo ' Image - Uncompressed kernel image (arch/$(ARCH)/boot/Image)' 305 echo '* xipImage - XIP kernel image, if configured (arch/$(ARCH)/boot/xipImage)' 306 echo ' uImage - U-Boot wrapped zImage' 307 echo ' bootpImage - Combined zImage and initial RAM disk' 308 echo ' (supply initrd image via make variable INITRD=<path>)' 309 echo ' dtbs - Build device tree blobs for enabled boards' 310 echo ' install - Install uncompressed kernel' 311 echo ' zinstall - Install compressed kernel' 312 echo ' uinstall - Install U-Boot wrapped compressed kernel' 313 echo ' Install using (your) ~/bin/$(INSTALLKERNEL) or' 314 echo ' (distribution) /sbin/$(INSTALLKERNEL) or' 315 echo ' install to $$(INSTALL_PATH) and run lilo' 316endef 317