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 ($(CONFIG_CPU_ENDIAN_BE8),y) 15LDFLAGS_vmlinux += --be8 16endif 17CPPFLAGS_vmlinux.lds = -DTEXT_OFFSET=$(TEXT_OFFSET) 18OBJCOPYFLAGS :=-O binary -R .note -R .note.gnu.build-id -R .comment -S 19GZFLAGS :=-9 20#KBUILD_CFLAGS +=-pipe 21# Explicitly specifiy 32-bit ARM ISA since toolchain default can be -mthumb: 22KBUILD_CFLAGS +=$(call cc-option,-marm,) 23 24# Do not use arch/arm/defconfig - it's always outdated. 25# Select a platform tht is kept up-to-date 26KBUILD_DEFCONFIG := versatile_defconfig 27 28# defines filename extension depending memory manement type. 29ifeq ($(CONFIG_MMU),) 30MMUEXT := -nommu 31endif 32 33ifeq ($(CONFIG_FRAME_POINTER),y) 34KBUILD_CFLAGS +=-fno-omit-frame-pointer -mapcs -mno-sched-prolog 35endif 36 37ifeq ($(CONFIG_CPU_BIG_ENDIAN),y) 38KBUILD_CPPFLAGS += -mbig-endian 39AS += -EB 40LD += -EB 41else 42KBUILD_CPPFLAGS += -mlittle-endian 43AS += -EL 44LD += -EL 45endif 46 47comma = , 48 49# This selects which instruction set is used. 50# Note that GCC does not numerically define an architecture version 51# macro, but instead defines a whole series of macros which makes 52# testing for a specific architecture or later rather impossible. 53arch-$(CONFIG_CPU_32v7) :=-D__LINUX_ARM_ARCH__=7 $(call cc-option,-march=armv7-a,-march=armv5t -Wa$(comma)-march=armv7-a) 54arch-$(CONFIG_CPU_32v6) :=-D__LINUX_ARM_ARCH__=6 $(call cc-option,-march=armv6,-march=armv5t -Wa$(comma)-march=armv6) 55# Only override the compiler option if ARMv6. The ARMv6K extensions are 56# always available in ARMv7 57ifeq ($(CONFIG_CPU_32v6),y) 58arch-$(CONFIG_CPU_32v6K) :=-D__LINUX_ARM_ARCH__=6 $(call cc-option,-march=armv6k,-march=armv5t -Wa$(comma)-march=armv6k) 59endif 60arch-$(CONFIG_CPU_32v5) :=-D__LINUX_ARM_ARCH__=5 $(call cc-option,-march=armv5te,-march=armv4t) 61arch-$(CONFIG_CPU_32v4T) :=-D__LINUX_ARM_ARCH__=4 -march=armv4t 62arch-$(CONFIG_CPU_32v4) :=-D__LINUX_ARM_ARCH__=4 -march=armv4 63arch-$(CONFIG_CPU_32v3) :=-D__LINUX_ARM_ARCH__=3 -march=armv3 64 65# This selects how we optimise for the processor. 66tune-$(CONFIG_CPU_ARM610) :=-mtune=arm610 67tune-$(CONFIG_CPU_ARM710) :=-mtune=arm710 68tune-$(CONFIG_CPU_ARM7TDMI) :=-mtune=arm7tdmi 69tune-$(CONFIG_CPU_ARM720T) :=-mtune=arm7tdmi 70tune-$(CONFIG_CPU_ARM740T) :=-mtune=arm7tdmi 71tune-$(CONFIG_CPU_ARM9TDMI) :=-mtune=arm9tdmi 72tune-$(CONFIG_CPU_ARM940T) :=-mtune=arm9tdmi 73tune-$(CONFIG_CPU_ARM946E) :=$(call cc-option,-mtune=arm9e,-mtune=arm9tdmi) 74tune-$(CONFIG_CPU_ARM920T) :=-mtune=arm9tdmi 75tune-$(CONFIG_CPU_ARM922T) :=-mtune=arm9tdmi 76tune-$(CONFIG_CPU_ARM925T) :=-mtune=arm9tdmi 77tune-$(CONFIG_CPU_ARM926T) :=-mtune=arm9tdmi 78tune-$(CONFIG_CPU_FA526) :=-mtune=arm9tdmi 79tune-$(CONFIG_CPU_SA110) :=-mtune=strongarm110 80tune-$(CONFIG_CPU_SA1100) :=-mtune=strongarm1100 81tune-$(CONFIG_CPU_XSCALE) :=$(call cc-option,-mtune=xscale,-mtune=strongarm110) -Wa,-mcpu=xscale 82tune-$(CONFIG_CPU_XSC3) :=$(call cc-option,-mtune=xscale,-mtune=strongarm110) -Wa,-mcpu=xscale 83tune-$(CONFIG_CPU_FEROCEON) :=$(call cc-option,-mtune=marvell-f,-mtune=xscale) 84tune-$(CONFIG_CPU_V6) :=$(call cc-option,-mtune=arm1136j-s,-mtune=strongarm) 85 86ifeq ($(CONFIG_AEABI),y) 87CFLAGS_ABI :=-mabi=aapcs-linux -mno-thumb-interwork 88else 89CFLAGS_ABI :=$(call cc-option,-mapcs-32,-mabi=apcs-gnu) $(call cc-option,-mno-thumb-interwork,) 90endif 91 92ifeq ($(CONFIG_ARM_UNWIND),y) 93CFLAGS_ABI +=-funwind-tables 94endif 95 96# Need -Uarm for gcc < 3.x 97KBUILD_CFLAGS +=$(CFLAGS_ABI) $(arch-y) $(tune-y) $(call cc-option,-mshort-load-bytes,$(call cc-option,-malignment-traps,)) -msoft-float -Uarm 98KBUILD_AFLAGS +=$(CFLAGS_ABI) $(arch-y) $(tune-y) -msoft-float 99 100CHECKFLAGS += -D__arm__ 101 102#Default value 103head-y := arch/arm/kernel/head$(MMUEXT).o arch/arm/kernel/init_task.o 104textofs-y := 0x00008000 105textofs-$(CONFIG_ARCH_CLPS711X) := 0x00028000 106# SA1111 DMA bug: we don't want the kernel to live in precious DMA-able memory 107ifeq ($(CONFIG_ARCH_SA1100),y) 108textofs-$(CONFIG_SA1111) := 0x00208000 109endif 110 111# Machine directory name. This list is sorted alphanumerically 112# by CONFIG_* macro name. 113machine-$(CONFIG_ARCH_AAEC2000) := aaec2000 114machine-$(CONFIG_ARCH_AT91) := at91 115machine-$(CONFIG_ARCH_CLPS711X) := clps711x 116machine-$(CONFIG_ARCH_DAVINCI) := davinci 117machine-$(CONFIG_ARCH_EBSA110) := ebsa110 118machine-$(CONFIG_ARCH_EP93XX) := ep93xx 119machine-$(CONFIG_ARCH_GEMINI) := gemini 120machine-$(CONFIG_ARCH_H720X) := h720x 121machine-$(CONFIG_ARCH_INTEGRATOR) := integrator 122machine-$(CONFIG_ARCH_IOP13XX) := iop13xx 123machine-$(CONFIG_ARCH_IOP32X) := iop32x 124machine-$(CONFIG_ARCH_IOP33X) := iop33x 125machine-$(CONFIG_ARCH_IXP2000) := ixp2000 126machine-$(CONFIG_ARCH_IXP23XX) := ixp23xx 127machine-$(CONFIG_ARCH_IXP4XX) := ixp4xx 128machine-$(CONFIG_ARCH_KIRKWOOD) := kirkwood 129machine-$(CONFIG_ARCH_KS8695) := ks8695 130machine-$(CONFIG_ARCH_L7200) := l7200 131machine-$(CONFIG_ARCH_LH7A40X) := lh7a40x 132machine-$(CONFIG_ARCH_LOKI) := loki 133machine-$(CONFIG_ARCH_MMP) := mmp 134machine-$(CONFIG_ARCH_MSM) := msm 135machine-$(CONFIG_ARCH_MV78XX0) := mv78xx0 136machine-$(CONFIG_ARCH_MX1) := mx1 137machine-$(CONFIG_ARCH_MX2) := mx2 138machine-$(CONFIG_ARCH_MX3) := mx3 139machine-$(CONFIG_ARCH_NETX) := netx 140machine-$(CONFIG_ARCH_NS9XXX) := ns9xxx 141machine-$(CONFIG_ARCH_OMAP1) := omap1 142machine-$(CONFIG_ARCH_OMAP2) := omap2 143machine-$(CONFIG_ARCH_OMAP3) := omap2 144machine-$(CONFIG_ARCH_OMAP4) := omap2 145machine-$(CONFIG_ARCH_ORION5X) := orion5x 146machine-$(CONFIG_ARCH_PNX4008) := pnx4008 147machine-$(CONFIG_ARCH_PXA) := pxa 148machine-$(CONFIG_ARCH_REALVIEW) := realview 149machine-$(CONFIG_ARCH_RPC) := rpc 150machine-$(CONFIG_ARCH_S3C2410) := s3c2410 s3c2400 s3c2412 s3c2440 s3c2442 s3c2443 151machine-$(CONFIG_ARCH_S3C24A0) := s3c24a0 152machine-$(CONFIG_ARCH_S3C64XX) := s3c6400 s3c6410 153machine-$(CONFIG_ARCH_SA1100) := sa1100 154machine-$(CONFIG_ARCH_SHARK) := shark 155machine-$(CONFIG_ARCH_STMP378X) := stmp378x 156machine-$(CONFIG_ARCH_STMP37XX) := stmp37xx 157machine-$(CONFIG_ARCH_U300) := u300 158machine-$(CONFIG_ARCH_VERSATILE) := versatile 159machine-$(CONFIG_ARCH_W90X900) := w90x900 160machine-$(CONFIG_FOOTBRIDGE) := footbridge 161 162# Platform directory name. This list is sorted alphanumerically 163# by CONFIG_* macro name. 164plat-$(CONFIG_ARCH_MXC) := mxc 165plat-$(CONFIG_ARCH_OMAP) := omap 166plat-$(CONFIG_PLAT_IOP) := iop 167plat-$(CONFIG_PLAT_ORION) := orion 168plat-$(CONFIG_PLAT_PXA) := pxa 169plat-$(CONFIG_PLAT_S3C24XX) := s3c24xx s3c 170plat-$(CONFIG_PLAT_S3C64XX) := s3c64xx s3c 171plat-$(CONFIG_ARCH_STMP3XXX) := stmp3xxx 172 173ifeq ($(CONFIG_ARCH_EBSA110),y) 174# This is what happens if you forget the IOCS16 line. 175# PCMCIA cards stop working. 176CFLAGS_3c589_cs.o :=-DISA_SIXTEEN_BIT_PERIPHERAL 177export CFLAGS_3c589_cs.o 178endif 179 180# The byte offset of the kernel image in RAM from the start of RAM. 181TEXT_OFFSET := $(textofs-y) 182 183# The first directory contains additional information for the boot setup code 184ifneq ($(machine-y),) 185MACHINE := arch/arm/mach-$(word 1,$(machine-y))/ 186else 187MACHINE := 188endif 189 190machdirs := $(patsubst %,arch/arm/mach-%/,$(machine-y)) 191platdirs := $(patsubst %,arch/arm/plat-%/,$(plat-y)) 192 193ifeq ($(KBUILD_SRC),) 194KBUILD_CPPFLAGS += $(patsubst %,-I%include,$(machdirs) $(platdirs)) 195else 196KBUILD_CPPFLAGS += $(patsubst %,-I$(srctree)/%include,$(machdirs) $(platdirs)) 197endif 198 199export TEXT_OFFSET GZFLAGS MMUEXT 200 201# Do we have FASTFPE? 202FASTFPE :=arch/arm/fastfpe 203ifeq ($(FASTFPE),$(wildcard $(FASTFPE))) 204FASTFPE_OBJ :=$(FASTFPE)/ 205endif 206 207# If we have a machine-specific directory, then include it in the build. 208core-y += arch/arm/kernel/ arch/arm/mm/ arch/arm/common/ 209core-y += $(machdirs) $(platdirs) 210core-$(CONFIG_FPE_NWFPE) += arch/arm/nwfpe/ 211core-$(CONFIG_FPE_FASTFPE) += $(FASTFPE_OBJ) 212core-$(CONFIG_VFP) += arch/arm/vfp/ 213 214drivers-$(CONFIG_OPROFILE) += arch/arm/oprofile/ 215 216libs-y := arch/arm/lib/ $(libs-y) 217 218# Default target when executing plain make 219ifeq ($(CONFIG_XIP_KERNEL),y) 220KBUILD_IMAGE := xipImage 221else 222KBUILD_IMAGE := zImage 223endif 224 225all: $(KBUILD_IMAGE) 226 227boot := arch/arm/boot 228 229# Update machine arch and proc symlinks if something which affects 230# them changed. We use .arch to indicate when they were updated 231# last, otherwise make uses the target directory mtime. 232 233archprepare: maketools 234 235PHONY += maketools FORCE 236maketools: include/linux/version.h FORCE 237 $(Q)$(MAKE) $(build)=arch/arm/tools include/asm-arm/mach-types.h 238 239# Convert bzImage to zImage 240bzImage: zImage 241 242zImage Image xipImage bootpImage uImage: vmlinux 243 $(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $(boot)/$@ 244 245zinstall install: vmlinux 246 $(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $@ 247 248CLEAN_FILES += include/asm-arm/mach-types.h \ 249 include/asm-arm/arch include/asm-arm/.arch 250 251# We use MRPROPER_FILES and CLEAN_FILES now 252archclean: 253 $(Q)$(MAKE) $(clean)=$(boot) 254 255# My testing targets (bypasses dependencies) 256bp:; $(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $(boot)/bootpImage 257i zi:; $(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $@ 258 259 260define archhelp 261 echo '* zImage - Compressed kernel image (arch/$(ARCH)/boot/zImage)' 262 echo ' Image - Uncompressed kernel image (arch/$(ARCH)/boot/Image)' 263 echo '* xipImage - XIP kernel image, if configured (arch/$(ARCH)/boot/xipImage)' 264 echo ' uImage - U-Boot wrapped zImage' 265 echo ' bootpImage - Combined zImage and initial RAM disk' 266 echo ' (supply initrd image via make variable INITRD=<path>)' 267 echo ' install - Install uncompressed kernel' 268 echo ' zinstall - Install compressed kernel' 269 echo ' Install using (your) ~/bin/installkernel or' 270 echo ' (distribution) /sbin/installkernel or' 271 echo ' install to $$(INSTALL_PATH) and run lilo' 272endef 273