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.eh_frame 26KBUILD_CFLAGS += $(call cc-option,-fno-dwarf2-cfi-asm) 27 28# Do not use arch/arm/defconfig - it's always outdated. 29# Select a platform tht is kept up-to-date 30KBUILD_DEFCONFIG := versatile_defconfig 31 32# defines filename extension depending memory management type.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 35endif 36 37ifeq ($(CONFIG_FRAME_POINTER),y) 38KBUILD_CFLAGS +=-fno-omit-frame-pointer -mapcs -mno-sched-prolog 39endif 40 41ifeq ($(CONFIG_CC_STACKPROTECTOR),y) 42KBUILD_CFLAGS +=-fstack-protector 43endif 44 45ifeq ($(CONFIG_CPU_BIG_ENDIAN),y) 46KBUILD_CPPFLAGS += -mbig-endian 47AS += -EB 48LD += -EB 49else 50KBUILD_CPPFLAGS += -mlittle-endian 51AS += -EL 52LD += -EL 53endif 54 55comma = , 56 57# This selects which instruction set is used. 58# Note that GCC does not numerically define an architecture version 59# macro, but instead defines a whole series of macros which makes 60# testing for a specific architecture or later rather impossible. 61arch-$(CONFIG_CPU_32v7) :=-D__LINUX_ARM_ARCH__=7 $(call cc-option,-march=armv7-a,-march=armv5t -Wa$(comma)-march=armv7-a) 62arch-$(CONFIG_CPU_32v6) :=-D__LINUX_ARM_ARCH__=6 $(call cc-option,-march=armv6,-march=armv5t -Wa$(comma)-march=armv6) 63# Only override the compiler option if ARMv6. The ARMv6K extensions are 64# always available in ARMv7 65ifeq ($(CONFIG_CPU_32v6),y) 66arch-$(CONFIG_CPU_32v6K) :=-D__LINUX_ARM_ARCH__=6 $(call cc-option,-march=armv6k,-march=armv5t -Wa$(comma)-march=armv6k) 67endif 68arch-$(CONFIG_CPU_32v5) :=-D__LINUX_ARM_ARCH__=5 $(call cc-option,-march=armv5te,-march=armv4t) 69arch-$(CONFIG_CPU_32v4T) :=-D__LINUX_ARM_ARCH__=4 -march=armv4t 70arch-$(CONFIG_CPU_32v4) :=-D__LINUX_ARM_ARCH__=4 -march=armv4 71arch-$(CONFIG_CPU_32v3) :=-D__LINUX_ARM_ARCH__=3 -march=armv3 72 73# This selects how we optimise for the processor. 74tune-$(CONFIG_CPU_ARM7TDMI) :=-mtune=arm7tdmi 75tune-$(CONFIG_CPU_ARM720T) :=-mtune=arm7tdmi 76tune-$(CONFIG_CPU_ARM740T) :=-mtune=arm7tdmi 77tune-$(CONFIG_CPU_ARM9TDMI) :=-mtune=arm9tdmi 78tune-$(CONFIG_CPU_ARM940T) :=-mtune=arm9tdmi 79tune-$(CONFIG_CPU_ARM946E) :=$(call cc-option,-mtune=arm9e,-mtune=arm9tdmi) 80tune-$(CONFIG_CPU_ARM920T) :=-mtune=arm9tdmi 81tune-$(CONFIG_CPU_ARM922T) :=-mtune=arm9tdmi 82tune-$(CONFIG_CPU_ARM925T) :=-mtune=arm9tdmi 83tune-$(CONFIG_CPU_ARM926T) :=-mtune=arm9tdmi 84tune-$(CONFIG_CPU_FA526) :=-mtune=arm9tdmi 85tune-$(CONFIG_CPU_SA110) :=-mtune=strongarm110 86tune-$(CONFIG_CPU_SA1100) :=-mtune=strongarm1100 87tune-$(CONFIG_CPU_XSCALE) :=$(call cc-option,-mtune=xscale,-mtune=strongarm110) -Wa,-mcpu=xscale 88tune-$(CONFIG_CPU_XSC3) :=$(call cc-option,-mtune=xscale,-mtune=strongarm110) -Wa,-mcpu=xscale 89tune-$(CONFIG_CPU_FEROCEON) :=$(call cc-option,-mtune=marvell-f,-mtune=xscale) 90tune-$(CONFIG_CPU_V6) :=$(call cc-option,-mtune=arm1136j-s,-mtune=strongarm) 91tune-$(CONFIG_CPU_V6K) :=$(call cc-option,-mtune=arm1136j-s,-mtune=strongarm) 92 93ifeq ($(CONFIG_AEABI),y) 94CFLAGS_ABI :=-mabi=aapcs-linux -mno-thumb-interwork 95else 96CFLAGS_ABI :=$(call cc-option,-mapcs-32,-mabi=apcs-gnu) $(call cc-option,-mno-thumb-interwork,) 97endif 98 99ifeq ($(CONFIG_ARM_UNWIND),y) 100CFLAGS_ABI +=-funwind-tables 101endif 102 103ifeq ($(CONFIG_THUMB2_KERNEL),y) 104AFLAGS_AUTOIT :=$(call as-option,-Wa$(comma)-mimplicit-it=always,-Wa$(comma)-mauto-it) 105AFLAGS_NOWARN :=$(call as-option,-Wa$(comma)-mno-warn-deprecated,-Wa$(comma)-W) 106CFLAGS_ISA :=-mthumb $(AFLAGS_AUTOIT) $(AFLAGS_NOWARN) 107AFLAGS_ISA :=$(CFLAGS_ISA) -Wa$(comma)-mthumb 108# Work around buggy relocation from gas if requested: 109ifeq ($(CONFIG_THUMB2_AVOID_R_ARM_THM_JUMP11),y) 110CFLAGS_MODULE +=-fno-optimize-sibling-calls 111endif 112else 113CFLAGS_ISA :=$(call cc-option,-marm,) 114AFLAGS_ISA :=$(CFLAGS_ISA) 115endif 116 117# Need -Uarm for gcc < 3.x 118KBUILD_CFLAGS +=$(CFLAGS_ABI) $(CFLAGS_ISA) $(arch-y) $(tune-y) $(call cc-option,-mshort-load-bytes,$(call cc-option,-malignment-traps,)) -msoft-float -Uarm 119KBUILD_AFLAGS +=$(CFLAGS_ABI) $(AFLAGS_ISA) $(arch-y) $(tune-y) -include asm/unified.h -msoft-float 120 121CHECKFLAGS += -D__arm__ 122 123#Default value 124head-y := arch/arm/kernel/head$(MMUEXT).o 125textofs-y := 0x00008000 126textofs-$(CONFIG_ARCH_CLPS711X) := 0x00028000 127# We don't want the htc bootloader to corrupt kernel during resume 128textofs-$(CONFIG_PM_H1940) := 0x00108000 129# SA1111 DMA bug: we don't want the kernel to live in precious DMA-able memory 130ifeq ($(CONFIG_ARCH_SA1100),y) 131textofs-$(CONFIG_SA1111) := 0x00208000 132endif 133textofs-$(CONFIG_ARCH_MSM7X30) := 0x00208000 134textofs-$(CONFIG_ARCH_MSM8X60) := 0x00208000 135textofs-$(CONFIG_ARCH_MSM8960) := 0x00208000 136 137# Machine directory name. This list is sorted alphanumerically 138# by CONFIG_* macro name. 139machine-$(CONFIG_ARCH_AT91) += at91 140machine-$(CONFIG_ARCH_BCM2835) += bcm2835 141machine-$(CONFIG_ARCH_CLPS711X) += clps711x 142machine-$(CONFIG_ARCH_CNS3XXX) += cns3xxx 143machine-$(CONFIG_ARCH_DAVINCI) += davinci 144machine-$(CONFIG_ARCH_DOVE) += dove 145machine-$(CONFIG_ARCH_EBSA110) += ebsa110 146machine-$(CONFIG_ARCH_EP93XX) += ep93xx 147machine-$(CONFIG_ARCH_GEMINI) += gemini 148machine-$(CONFIG_ARCH_H720X) += h720x 149machine-$(CONFIG_ARCH_HIGHBANK) += highbank 150machine-$(CONFIG_ARCH_INTEGRATOR) += integrator 151machine-$(CONFIG_ARCH_IOP13XX) += iop13xx 152machine-$(CONFIG_ARCH_IOP32X) += iop32x 153machine-$(CONFIG_ARCH_IOP33X) += iop33x 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_MXC) += 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-$(CONFIG_ARCH_PRIMA2) += prima2 171machine-$(CONFIG_ARCH_PXA) += pxa 172machine-$(CONFIG_ARCH_REALVIEW) += realview 173machine-$(CONFIG_ARCH_RPC) += rpc 174machine-$(CONFIG_ARCH_S3C24XX) += s3c24xx s3c2412 s3c2440 175machine-$(CONFIG_ARCH_S3C64XX) += s3c64xx 176machine-$(CONFIG_ARCH_S5P64X0) += s5p64x0 177machine-$(CONFIG_ARCH_S5PC100) += s5pc100 178machine-$(CONFIG_ARCH_S5PV210) += s5pv210 179machine-$(CONFIG_ARCH_EXYNOS) += exynos 180machine-$(CONFIG_ARCH_SA1100) += sa1100 181machine-$(CONFIG_ARCH_SHARK) += shark 182machine-$(CONFIG_ARCH_SHMOBILE) += shmobile 183machine-$(CONFIG_ARCH_TEGRA) += tegra 184machine-$(CONFIG_ARCH_U300) += u300 185machine-$(CONFIG_ARCH_U8500) += ux500 186machine-$(CONFIG_ARCH_VERSATILE) += versatile 187machine-$(CONFIG_ARCH_VEXPRESS) += vexpress 188machine-$(CONFIG_ARCH_VT8500) += vt8500 189machine-$(CONFIG_ARCH_W90X900) += w90x900 190machine-$(CONFIG_FOOTBRIDGE) += footbridge 191machine-$(CONFIG_ARCH_SOCFPGA) += socfpga 192machine-$(CONFIG_ARCH_SPEAR13XX) += spear13xx 193machine-$(CONFIG_ARCH_SPEAR3XX) += spear3xx 194machine-$(CONFIG_MACH_SPEAR600) += spear6xx 195machine-$(CONFIG_ARCH_ZYNQ) += zynq 196 197# Platform directory name. This list is sorted alphanumerically 198# by CONFIG_* macro name. 199plat-$(CONFIG_ARCH_OMAP) += omap 200plat-$(CONFIG_ARCH_S3C64XX) += samsung 201plat-$(CONFIG_PLAT_IOP) += iop 202plat-$(CONFIG_PLAT_NOMADIK) += nomadik 203plat-$(CONFIG_PLAT_ORION) += orion 204plat-$(CONFIG_PLAT_PXA) += pxa 205plat-$(CONFIG_PLAT_S3C24XX) += s3c24xx samsung 206plat-$(CONFIG_PLAT_S5P) += samsung 207plat-$(CONFIG_PLAT_SPEAR) += spear 208plat-$(CONFIG_PLAT_VERSATILE) += versatile 209 210ifeq ($(CONFIG_ARCH_EBSA110),y) 211# This is what happens if you forget the IOCS16 line. 212# PCMCIA cards stop working. 213CFLAGS_3c589_cs.o :=-DISA_SIXTEEN_BIT_PERIPHERAL 214export CFLAGS_3c589_cs.o 215endif 216 217# The byte offset of the kernel image in RAM from the start of RAM. 218TEXT_OFFSET := $(textofs-y) 219 220# The first directory contains additional information for the boot setup code 221ifneq ($(machine-y),) 222MACHINE := arch/arm/mach-$(word 1,$(machine-y))/ 223else 224MACHINE := 225endif 226ifeq ($(CONFIG_ARCH_MULTIPLATFORM),y) 227MACHINE := 228endif 229 230machdirs := $(patsubst %,arch/arm/mach-%/,$(machine-y)) 231platdirs := $(patsubst %,arch/arm/plat-%/,$(plat-y)) 232 233ifneq ($(CONFIG_ARCH_MULTIPLATFORM),y) 234ifeq ($(KBUILD_SRC),) 235KBUILD_CPPFLAGS += $(patsubst %,-I%include,$(machdirs) $(platdirs)) 236else 237KBUILD_CPPFLAGS += $(patsubst %,-I$(srctree)/%include,$(machdirs) $(platdirs)) 238endif 239endif 240 241export TEXT_OFFSET GZFLAGS MMUEXT 242 243# Do we have FASTFPE? 244FASTFPE :=arch/arm/fastfpe 245ifeq ($(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/ 252core-$(CONFIG_XEN) += arch/arm/xen/ 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) MACHINE=$(MACHINE) $(boot)/$@ 294 295dtbs: scripts 296 $(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $(boot)/$@ 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