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 25# Never generate .eh_frame 26KBUILD_CFLAGS += $(call cc-option,-fno-dwarf2-cfi-asm) 27 28# Do not use arch/arm/defconfig - it's always outdated. 29# Select a platform tht is kept up-to-date 30KBUILD_DEFCONFIG := versatile_defconfig 31 32# defines filename extension depending memory management type. 33ifeq ($(CONFIG_MMU),) 34MMUEXT := -nommu 35KBUILD_CFLAGS += $(call cc-option,-mno-unaligned-access) 36endif 37 38ifeq ($(CONFIG_FRAME_POINTER),y) 39KBUILD_CFLAGS +=-fno-omit-frame-pointer -mapcs -mno-sched-prolog 40endif 41 42ifeq ($(CONFIG_CC_STACKPROTECTOR),y) 43KBUILD_CFLAGS +=-fstack-protector 44endif 45 46ifeq ($(CONFIG_CPU_BIG_ENDIAN),y) 47KBUILD_CPPFLAGS += -mbig-endian 48AS += -EB 49LD += -EB 50else 51KBUILD_CPPFLAGS += -mlittle-endian 52AS += -EL 53LD += -EL 54endif 55 56comma = , 57 58# This selects which instruction set is used. 59# Note that GCC does not numerically define an architecture version 60# macro, but instead defines a whole series of macros which makes 61# testing for a specific architecture or later rather impossible. 62arch-$(CONFIG_CPU_32v7) :=-D__LINUX_ARM_ARCH__=7 $(call cc-option,-march=armv7-a,-march=armv5t -Wa$(comma)-march=armv7-a) 63arch-$(CONFIG_CPU_32v6) :=-D__LINUX_ARM_ARCH__=6 $(call cc-option,-march=armv6,-march=armv5t -Wa$(comma)-march=armv6) 64# Only override the compiler option if ARMv6. The ARMv6K extensions are 65# always available in ARMv7 66ifeq ($(CONFIG_CPU_32v6),y) 67arch-$(CONFIG_CPU_32v6K) :=-D__LINUX_ARM_ARCH__=6 $(call cc-option,-march=armv6k,-march=armv5t -Wa$(comma)-march=armv6k) 68endif 69arch-$(CONFIG_CPU_32v5) :=-D__LINUX_ARM_ARCH__=5 $(call cc-option,-march=armv5te,-march=armv4t) 70arch-$(CONFIG_CPU_32v4T) :=-D__LINUX_ARM_ARCH__=4 -march=armv4t 71arch-$(CONFIG_CPU_32v4) :=-D__LINUX_ARM_ARCH__=4 -march=armv4 72arch-$(CONFIG_CPU_32v3) :=-D__LINUX_ARM_ARCH__=3 -march=armv3 73 74# This selects how we optimise for the processor. 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_ISA :=-mthumb $(AFLAGS_AUTOIT) $(AFLAGS_NOWARN) 108AFLAGS_ISA :=$(CFLAGS_ISA) -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 113else 114CFLAGS_ISA :=$(call cc-option,-marm,) 115AFLAGS_ISA :=$(CFLAGS_ISA) 116endif 117 118# Need -Uarm for gcc < 3.x 119KBUILD_CFLAGS +=$(CFLAGS_ABI) $(CFLAGS_ISA) $(arch-y) $(tune-y) $(call cc-option,-mshort-load-bytes,$(call cc-option,-malignment-traps,)) -msoft-float -Uarm 120KBUILD_AFLAGS +=$(CFLAGS_ABI) $(AFLAGS_ISA) $(arch-y) $(tune-y) -include asm/unified.h -msoft-float 121 122CHECKFLAGS += -D__arm__ 123 124#Default value 125head-y := arch/arm/kernel/head$(MMUEXT).o 126textofs-y := 0x00008000 127textofs-$(CONFIG_ARCH_CLPS711X) := 0x00028000 128# We don't want the htc bootloader to corrupt kernel during resume 129textofs-$(CONFIG_PM_H1940) := 0x00108000 130# SA1111 DMA bug: we don't want the kernel to live in precious DMA-able memory 131ifeq ($(CONFIG_ARCH_SA1100),y) 132textofs-$(CONFIG_SA1111) := 0x00208000 133endif 134textofs-$(CONFIG_ARCH_MSM7X30) := 0x00208000 135textofs-$(CONFIG_ARCH_MSM8X60) := 0x00208000 136textofs-$(CONFIG_ARCH_MSM8960) := 0x00208000 137 138# Machine directory name. This list is sorted alphanumerically 139# by CONFIG_* macro name. 140machine-$(CONFIG_ARCH_AT91) += at91 141machine-$(CONFIG_ARCH_BCM) += bcm 142machine-$(CONFIG_ARCH_BCM2835) += bcm2835 143machine-$(CONFIG_ARCH_CLPS711X) += clps711x 144machine-$(CONFIG_ARCH_CNS3XXX) += cns3xxx 145machine-$(CONFIG_ARCH_DAVINCI) += davinci 146machine-$(CONFIG_ARCH_DOVE) += dove 147machine-$(CONFIG_ARCH_EBSA110) += ebsa110 148machine-$(CONFIG_ARCH_EP93XX) += ep93xx 149machine-$(CONFIG_ARCH_GEMINI) += gemini 150machine-$(CONFIG_ARCH_HIGHBANK) += highbank 151machine-$(CONFIG_ARCH_INTEGRATOR) += integrator 152machine-$(CONFIG_ARCH_IOP13XX) += iop13xx 153machine-$(CONFIG_ARCH_IOP32X) += iop32x 154machine-$(CONFIG_ARCH_IOP33X) += iop33x 155machine-$(CONFIG_ARCH_IXP4XX) += ixp4xx 156machine-$(CONFIG_ARCH_KIRKWOOD) += kirkwood 157machine-$(CONFIG_ARCH_KS8695) += ks8695 158machine-$(CONFIG_ARCH_LPC32XX) += lpc32xx 159machine-$(CONFIG_ARCH_MMP) += mmp 160machine-$(CONFIG_ARCH_MSM) += msm 161machine-$(CONFIG_ARCH_MV78XX0) += mv78xx0 162machine-$(CONFIG_ARCH_MXC) += imx 163machine-$(CONFIG_ARCH_MXS) += mxs 164machine-$(CONFIG_ARCH_MVEBU) += mvebu 165machine-$(CONFIG_ARCH_NETX) += netx 166machine-$(CONFIG_ARCH_NOMADIK) += nomadik 167machine-$(CONFIG_ARCH_OMAP1) += omap1 168machine-$(CONFIG_ARCH_OMAP2PLUS) += omap2 169machine-$(CONFIG_ARCH_ORION5X) += orion5x 170machine-$(CONFIG_ARCH_PICOXCELL) += picoxcell 171machine-$(CONFIG_ARCH_PRIMA2) += prima2 172machine-$(CONFIG_ARCH_PXA) += pxa 173machine-$(CONFIG_ARCH_REALVIEW) += realview 174machine-$(CONFIG_ARCH_RPC) += rpc 175machine-$(CONFIG_ARCH_S3C24XX) += s3c24xx 176machine-$(CONFIG_ARCH_S3C64XX) += s3c64xx 177machine-$(CONFIG_ARCH_S5P64X0) += s5p64x0 178machine-$(CONFIG_ARCH_S5PC100) += s5pc100 179machine-$(CONFIG_ARCH_S5PV210) += s5pv210 180machine-$(CONFIG_ARCH_EXYNOS) += exynos 181machine-$(CONFIG_ARCH_SA1100) += sa1100 182machine-$(CONFIG_ARCH_SHARK) += shark 183machine-$(CONFIG_ARCH_SHMOBILE) += shmobile 184machine-$(CONFIG_ARCH_TEGRA) += tegra 185machine-$(CONFIG_ARCH_U300) += u300 186machine-$(CONFIG_ARCH_U8500) += ux500 187machine-$(CONFIG_ARCH_VERSATILE) += versatile 188machine-$(CONFIG_ARCH_VEXPRESS) += vexpress 189machine-$(CONFIG_ARCH_VT8500) += vt8500 190machine-$(CONFIG_ARCH_W90X900) += w90x900 191machine-$(CONFIG_FOOTBRIDGE) += footbridge 192machine-$(CONFIG_ARCH_SOCFPGA) += socfpga 193machine-$(CONFIG_PLAT_SPEAR) += spear 194machine-$(CONFIG_ARCH_VIRT) += virt 195machine-$(CONFIG_ARCH_ZYNQ) += zynq 196machine-$(CONFIG_ARCH_SUNXI) += sunxi 197 198# Platform directory name. This list is sorted alphanumerically 199# by CONFIG_* macro name. 200plat-$(CONFIG_ARCH_OMAP) += omap 201plat-$(CONFIG_ARCH_S3C64XX) += samsung 202plat-$(CONFIG_PLAT_IOP) += iop 203plat-$(CONFIG_PLAT_ORION) += orion 204plat-$(CONFIG_PLAT_PXA) += pxa 205plat-$(CONFIG_PLAT_S3C24XX) += samsung 206plat-$(CONFIG_PLAT_S5P) += samsung 207plat-$(CONFIG_PLAT_VERSATILE) += versatile 208 209ifeq ($(CONFIG_ARCH_EBSA110),y) 210# This is what happens if you forget the IOCS16 line. 211# PCMCIA cards stop working. 212CFLAGS_3c589_cs.o :=-DISA_SIXTEEN_BIT_PERIPHERAL 213export CFLAGS_3c589_cs.o 214endif 215 216# The byte offset of the kernel image in RAM from the start of RAM. 217TEXT_OFFSET := $(textofs-y) 218 219# The first directory contains additional information for the boot setup code 220ifneq ($(machine-y),) 221MACHINE := arch/arm/mach-$(word 1,$(machine-y))/ 222else 223MACHINE := 224endif 225ifeq ($(CONFIG_ARCH_MULTIPLATFORM),y) 226MACHINE := 227endif 228 229machdirs := $(patsubst %,arch/arm/mach-%/,$(machine-y)) 230platdirs := $(patsubst %,arch/arm/plat-%/,$(plat-y)) 231 232ifneq ($(CONFIG_ARCH_MULTIPLATFORM),y) 233ifeq ($(KBUILD_SRC),) 234KBUILD_CPPFLAGS += $(patsubst %,-I%include,$(machdirs) $(platdirs)) 235else 236KBUILD_CPPFLAGS += $(patsubst %,-I$(srctree)/%include,$(machdirs) $(platdirs)) 237endif 238endif 239 240export TEXT_OFFSET GZFLAGS MMUEXT 241 242# Do we have FASTFPE? 243FASTFPE :=arch/arm/fastfpe 244ifeq ($(FASTFPE),$(wildcard $(FASTFPE))) 245FASTFPE_OBJ :=$(FASTFPE)/ 246endif 247 248core-$(CONFIG_FPE_NWFPE) += arch/arm/nwfpe/ 249core-$(CONFIG_FPE_FASTFPE) += $(FASTFPE_OBJ) 250core-$(CONFIG_VFP) += arch/arm/vfp/ 251core-$(CONFIG_XEN) += arch/arm/xen/ 252core-$(CONFIG_KVM_ARM_HOST) += arch/arm/kvm/ 253 254# If we have a machine-specific directory, then include it in the build. 255core-y += arch/arm/kernel/ arch/arm/mm/ arch/arm/common/ 256core-y += arch/arm/net/ 257core-y += arch/arm/crypto/ 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 270 271# Build the DT binary blobs if we have OF configured 272ifeq ($(CONFIG_USE_OF),y) 273KBUILD_DTBS := dtbs 274endif 275 276all: $(KBUILD_IMAGE) $(KBUILD_DTBS) 277 278boot := arch/arm/boot 279 280archprepare: 281 $(Q)$(MAKE) $(build)=arch/arm/tools include/generated/mach-types.h 282 283# Convert bzImage to zImage 284bzImage: zImage 285 286zImage Image xipImage bootpImage uImage: vmlinux 287 $(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $(boot)/$@ 288 289zinstall uinstall install: vmlinux 290 $(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $@ 291 292%.dtb: scripts 293 $(Q)$(MAKE) $(build)=$(boot)/dts MACHINE=$(MACHINE) $(boot)/dts/$@ 294 295dtbs: scripts 296 $(Q)$(MAKE) $(build)=$(boot)/dts MACHINE=$(MACHINE) dtbs 297 298# We use MRPROPER_FILES and CLEAN_FILES now 299archclean: 300 $(Q)$(MAKE) $(clean)=$(boot) 301 302# My testing targets (bypasses dependencies) 303bp:; $(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $(boot)/bootpImage 304i zi:; $(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $@ 305 306 307define archhelp 308 echo '* zImage - Compressed kernel image (arch/$(ARCH)/boot/zImage)' 309 echo ' Image - Uncompressed kernel image (arch/$(ARCH)/boot/Image)' 310 echo '* xipImage - XIP kernel image, if configured (arch/$(ARCH)/boot/xipImage)' 311 echo ' uImage - U-Boot wrapped zImage' 312 echo ' bootpImage - Combined zImage and initial RAM disk' 313 echo ' (supply initrd image via make variable INITRD=<path>)' 314 echo '* dtbs - Build device tree blobs for enabled boards' 315 echo ' install - Install uncompressed kernel' 316 echo ' zinstall - Install compressed kernel' 317 echo ' uinstall - Install U-Boot wrapped compressed kernel' 318 echo ' Install using (your) ~/bin/$(INSTALLKERNEL) or' 319 echo ' (distribution) /sbin/$(INSTALLKERNEL) or' 320 echo ' install to $$(INSTALL_PATH) and run lilo' 321endef 322