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 14CPPFLAGS_vmlinux.lds = -DTEXT_OFFSET=$(TEXT_OFFSET) 15OBJCOPYFLAGS :=-O binary -R .note -R .note.gnu.build-id -R .comment -S 16GZFLAGS :=-9 17#KBUILD_CFLAGS +=-pipe 18# Explicitly specifiy 32-bit ARM ISA since toolchain default can be -mthumb: 19KBUILD_CFLAGS +=$(call cc-option,-marm,) 20 21# Do not use arch/arm/defconfig - it's always outdated. 22# Select a platform tht is kept up-to-date 23KBUILD_DEFCONFIG := versatile_defconfig 24 25# defines filename extension depending memory manement type. 26ifeq ($(CONFIG_MMU),) 27MMUEXT := -nommu 28endif 29 30ifeq ($(CONFIG_FRAME_POINTER),y) 31KBUILD_CFLAGS +=-fno-omit-frame-pointer -mapcs -mno-sched-prolog 32endif 33 34ifeq ($(CONFIG_CPU_BIG_ENDIAN),y) 35KBUILD_CPPFLAGS += -mbig-endian 36AS += -EB 37LD += -EB 38else 39KBUILD_CPPFLAGS += -mlittle-endian 40AS += -EL 41LD += -EL 42endif 43 44comma = , 45 46# This selects which instruction set is used. 47# Note that GCC does not numerically define an architecture version 48# macro, but instead defines a whole series of macros which makes 49# testing for a specific architecture or later rather impossible. 50arch-$(CONFIG_CPU_32v7) :=-D__LINUX_ARM_ARCH__=7 $(call cc-option,-march=armv7-a,-march=armv5t -Wa$(comma)-march=armv7-a) 51arch-$(CONFIG_CPU_32v6) :=-D__LINUX_ARM_ARCH__=6 $(call cc-option,-march=armv6,-march=armv5t -Wa$(comma)-march=armv6) 52# Only override the compiler option if ARMv6. The ARMv6K extensions are 53# always available in ARMv7 54ifeq ($(CONFIG_CPU_32v6),y) 55arch-$(CONFIG_CPU_32v6K) :=-D__LINUX_ARM_ARCH__=6 $(call cc-option,-march=armv6k,-march=armv5t -Wa$(comma)-march=armv6k) 56endif 57arch-$(CONFIG_CPU_32v5) :=-D__LINUX_ARM_ARCH__=5 $(call cc-option,-march=armv5te,-march=armv4t) 58arch-$(CONFIG_CPU_32v4T) :=-D__LINUX_ARM_ARCH__=4 -march=armv4t 59arch-$(CONFIG_CPU_32v4) :=-D__LINUX_ARM_ARCH__=4 -march=armv4 60arch-$(CONFIG_CPU_32v3) :=-D__LINUX_ARM_ARCH__=3 -march=armv3 61 62# This selects how we optimise for the processor. 63tune-$(CONFIG_CPU_ARM610) :=-mtune=arm610 64tune-$(CONFIG_CPU_ARM710) :=-mtune=arm710 65tune-$(CONFIG_CPU_ARM7TDMI) :=-mtune=arm7tdmi 66tune-$(CONFIG_CPU_ARM720T) :=-mtune=arm7tdmi 67tune-$(CONFIG_CPU_ARM740T) :=-mtune=arm7tdmi 68tune-$(CONFIG_CPU_ARM9TDMI) :=-mtune=arm9tdmi 69tune-$(CONFIG_CPU_ARM940T) :=-mtune=arm9tdmi 70tune-$(CONFIG_CPU_ARM946E) :=$(call cc-option,-mtune=arm9e,-mtune=arm9tdmi) 71tune-$(CONFIG_CPU_ARM920T) :=-mtune=arm9tdmi 72tune-$(CONFIG_CPU_ARM922T) :=-mtune=arm9tdmi 73tune-$(CONFIG_CPU_ARM925T) :=-mtune=arm9tdmi 74tune-$(CONFIG_CPU_ARM926T) :=-mtune=arm9tdmi 75tune-$(CONFIG_CPU_SA110) :=-mtune=strongarm110 76tune-$(CONFIG_CPU_SA1100) :=-mtune=strongarm1100 77tune-$(CONFIG_CPU_XSCALE) :=$(call cc-option,-mtune=xscale,-mtune=strongarm110) -Wa,-mcpu=xscale 78tune-$(CONFIG_CPU_XSC3) :=$(call cc-option,-mtune=xscale,-mtune=strongarm110) -Wa,-mcpu=xscale 79tune-$(CONFIG_CPU_V6) :=$(call cc-option,-mtune=arm1136j-s,-mtune=strongarm) 80 81ifeq ($(CONFIG_AEABI),y) 82CFLAGS_ABI :=-mabi=aapcs-linux -mno-thumb-interwork 83else 84CFLAGS_ABI :=$(call cc-option,-mapcs-32,-mabi=apcs-gnu) $(call cc-option,-mno-thumb-interwork,) 85endif 86 87# Need -Uarm for gcc < 3.x 88KBUILD_CFLAGS +=$(CFLAGS_ABI) $(arch-y) $(tune-y) $(call cc-option,-mshort-load-bytes,$(call cc-option,-malignment-traps,)) -msoft-float -Uarm 89KBUILD_AFLAGS +=$(CFLAGS_ABI) $(arch-y) $(tune-y) -msoft-float 90 91CHECKFLAGS += -D__arm__ 92 93#Default value 94head-y := arch/arm/kernel/head$(MMUEXT).o arch/arm/kernel/init_task.o 95textofs-y := 0x00008000 96 97 machine-$(CONFIG_ARCH_RPC) := rpc 98 machine-$(CONFIG_ARCH_EBSA110) := ebsa110 99 machine-$(CONFIG_ARCH_CLPS7500) := clps7500 100 machine-$(CONFIG_FOOTBRIDGE) := footbridge 101 machine-$(CONFIG_ARCH_SHARK) := shark 102 machine-$(CONFIG_ARCH_SA1100) := sa1100 103ifeq ($(CONFIG_ARCH_SA1100),y) 104# SA1111 DMA bug: we don't want the kernel to live in precious DMA-able memory 105 textofs-$(CONFIG_SA1111) := 0x00208000 106endif 107 machine-$(CONFIG_ARCH_PXA) := pxa 108 machine-$(CONFIG_ARCH_L7200) := l7200 109 machine-$(CONFIG_ARCH_INTEGRATOR) := integrator 110 textofs-$(CONFIG_ARCH_CLPS711X) := 0x00028000 111 machine-$(CONFIG_ARCH_CLPS711X) := clps711x 112 machine-$(CONFIG_ARCH_IOP32X) := iop32x 113 machine-$(CONFIG_ARCH_IOP33X) := iop33x 114 machine-$(CONFIG_ARCH_IOP13XX) := iop13xx 115 plat-$(CONFIG_PLAT_IOP) := iop 116 machine-$(CONFIG_ARCH_IXP4XX) := ixp4xx 117 machine-$(CONFIG_ARCH_IXP2000) := ixp2000 118 machine-$(CONFIG_ARCH_IXP23XX) := ixp23xx 119 machine-$(CONFIG_ARCH_OMAP1) := omap1 120 machine-$(CONFIG_ARCH_OMAP2) := omap2 121 machine-$(CONFIG_ARCH_OMAP3) := omap2 122 plat-$(CONFIG_ARCH_OMAP) := omap 123 machine-$(CONFIG_ARCH_S3C2410) := s3c2410 s3c2400 s3c2412 s3c2440 s3c2442 s3c2443 124 plat-$(CONFIG_PLAT_S3C24XX) := s3c24xx s3c 125 machine-$(CONFIG_ARCH_LH7A40X) := lh7a40x 126 machine-$(CONFIG_ARCH_VERSATILE) := versatile 127 machine-$(CONFIG_ARCH_IMX) := imx 128 machine-$(CONFIG_ARCH_H720X) := h720x 129 machine-$(CONFIG_ARCH_AAEC2000) := aaec2000 130 machine-$(CONFIG_ARCH_REALVIEW) := realview 131 machine-$(CONFIG_ARCH_AT91) := at91 132 machine-$(CONFIG_ARCH_EP93XX) := ep93xx 133 machine-$(CONFIG_ARCH_PNX4008) := pnx4008 134 machine-$(CONFIG_ARCH_NETX) := netx 135 machine-$(CONFIG_ARCH_NS9XXX) := ns9xxx 136 machine-$(CONFIG_ARCH_DAVINCI) := davinci 137 machine-$(CONFIG_ARCH_KIRKWOOD) := kirkwood 138 machine-$(CONFIG_ARCH_KS8695) := ks8695 139 plat-$(CONFIG_ARCH_MXC) := mxc 140 machine-$(CONFIG_ARCH_MX2) := mx2 141 machine-$(CONFIG_ARCH_MX3) := mx3 142 machine-$(CONFIG_ARCH_ORION5X) := orion5x 143 plat-$(CONFIG_PLAT_ORION) := orion 144 machine-$(CONFIG_ARCH_MSM) := msm 145 machine-$(CONFIG_ARCH_LOKI) := loki 146 machine-$(CONFIG_ARCH_MV78XX0) := mv78xx0 147 148ifeq ($(CONFIG_ARCH_EBSA110),y) 149# This is what happens if you forget the IOCS16 line. 150# PCMCIA cards stop working. 151CFLAGS_3c589_cs.o :=-DISA_SIXTEEN_BIT_PERIPHERAL 152export CFLAGS_3c589_cs.o 153endif 154 155# The byte offset of the kernel image in RAM from the start of RAM. 156TEXT_OFFSET := $(textofs-y) 157 158# The first directory contains additional information for the boot setup code 159ifneq ($(machine-y),) 160MACHINE := arch/arm/mach-$(word 1,$(machine-y))/ 161else 162MACHINE := 163endif 164 165machdirs := $(patsubst %,arch/arm/mach-%/,$(machine-y)) 166platdirs := $(patsubst %,arch/arm/plat-%/,$(plat-y)) 167 168ifeq ($(KBUILD_SRC),) 169KBUILD_CPPFLAGS += $(patsubst %,-I%include,$(machdirs) $(platdirs)) 170else 171KBUILD_CPPFLAGS += $(patsubst %,-I$(srctree)/%include,$(machdirs) $(platdirs)) 172endif 173 174export TEXT_OFFSET GZFLAGS MMUEXT 175 176# Do we have FASTFPE? 177FASTFPE :=arch/arm/fastfpe 178ifeq ($(FASTFPE),$(wildcard $(FASTFPE))) 179FASTFPE_OBJ :=$(FASTFPE)/ 180endif 181 182# If we have a machine-specific directory, then include it in the build. 183core-y += arch/arm/kernel/ arch/arm/mm/ arch/arm/common/ 184core-y += $(machdirs) $(platdirs) 185core-$(CONFIG_FPE_NWFPE) += arch/arm/nwfpe/ 186core-$(CONFIG_FPE_FASTFPE) += $(FASTFPE_OBJ) 187core-$(CONFIG_VFP) += arch/arm/vfp/ 188 189drivers-$(CONFIG_OPROFILE) += arch/arm/oprofile/ 190 191libs-y := arch/arm/lib/ $(libs-y) 192 193# Default target when executing plain make 194ifeq ($(CONFIG_XIP_KERNEL),y) 195KBUILD_IMAGE := xipImage 196else 197KBUILD_IMAGE := zImage 198endif 199 200all: $(KBUILD_IMAGE) 201 202boot := arch/arm/boot 203 204# Update machine arch and proc symlinks if something which affects 205# them changed. We use .arch to indicate when they were updated 206# last, otherwise make uses the target directory mtime. 207 208archprepare: maketools 209 210PHONY += maketools FORCE 211maketools: include/linux/version.h FORCE 212 $(Q)$(MAKE) $(build)=arch/arm/tools include/asm-arm/mach-types.h 213 214# Convert bzImage to zImage 215bzImage: zImage 216 217zImage Image xipImage bootpImage uImage: vmlinux 218 $(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $(boot)/$@ 219 220zinstall install: vmlinux 221 $(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $@ 222 223CLEAN_FILES += include/asm-arm/mach-types.h \ 224 include/asm-arm/arch include/asm-arm/.arch 225 226# We use MRPROPER_FILES and CLEAN_FILES now 227archclean: 228 $(Q)$(MAKE) $(clean)=$(boot) 229 230# My testing targets (bypasses dependencies) 231bp:; $(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $(boot)/bootpImage 232i zi:; $(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $@ 233 234 235define archhelp 236 echo '* zImage - Compressed kernel image (arch/$(ARCH)/boot/zImage)' 237 echo ' Image - Uncompressed kernel image (arch/$(ARCH)/boot/Image)' 238 echo '* xipImage - XIP kernel image, if configured (arch/$(ARCH)/boot/xipImage)' 239 echo ' uImage - U-Boot wrapped zImage' 240 echo ' bootpImage - Combined zImage and initial RAM disk' 241 echo ' (supply initrd image via make variable INITRD=<path>)' 242 echo ' install - Install uncompressed kernel' 243 echo ' zinstall - Install compressed kernel' 244 echo ' Install using (your) ~/bin/installkernel or' 245 echo ' (distribution) /sbin/installkernel or' 246 echo ' install to $$(INSTALL_PATH) and run lilo' 247endef 248