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=$(TEXT_OFFSET) 15OBJCOPYFLAGS :=-O binary -R .note -R .comment -S 16GZFLAGS :=-9 17#CFLAGS +=-pipe 18# Explicitly specifiy 32-bit ARM ISA since toolchain default can be -mthumb: 19CFLAGS +=$(call cc-option,-marm,) 20 21# Do not use arch/arm/defconfig - it's always outdated. 22# Select a platform tht is kept up-to-date 23KBUILD_DEFCONFIG := versatile_defconfig 24 25# defines filename extension depending memory manement type.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) 31CFLAGS +=-fno-omit-frame-pointer -mapcs -mno-sched-prolog 32endif 33 34ifeq ($(CONFIG_CPU_BIG_ENDIAN),y) 35CPPFLAGS += -mbig-endian 36AS += -EB 37LD += -EB 38else 39CPPFLAGS += -mlittle-endian 40AS += -EL 41LD += -EL 42endif 43 44comma = , 45 46# This selects which instruction set is used. 47# Note that GCC does not numerically define an architecture version 48# macro, but instead defines a whole series of macros which makes 49# testing for a specific architecture or later rather impossible. 50arch-$(CONFIG_CPU_32v6) :=-D__LINUX_ARM_ARCH__=6 $(call cc-option,-march=armv6,-march=armv5t -Wa$(comma)-march=armv6) 51arch-$(CONFIG_CPU_32v6K) :=-D__LINUX_ARM_ARCH__=6 $(call cc-option,-march=armv6k,-march=armv5t -Wa$(comma)-march=armv6k) 52arch-$(CONFIG_CPU_32v5) :=-D__LINUX_ARM_ARCH__=5 $(call cc-option,-march=armv5te,-march=armv4t) 53arch-$(CONFIG_CPU_32v4T) :=-D__LINUX_ARM_ARCH__=4 -march=armv4t 54arch-$(CONFIG_CPU_32v4) :=-D__LINUX_ARM_ARCH__=4 -march=armv4 55arch-$(CONFIG_CPU_32v3) :=-D__LINUX_ARM_ARCH__=3 -march=armv3 56 57# This selects how we optimise for the processor. 58tune-$(CONFIG_CPU_ARM610) :=-mtune=arm610 59tune-$(CONFIG_CPU_ARM710) :=-mtune=arm710 60tune-$(CONFIG_CPU_ARM7TDMI) :=-mtune=arm7tdmi 61tune-$(CONFIG_CPU_ARM720T) :=-mtune=arm7tdmi 62tune-$(CONFIG_CPU_ARM740T) :=-mtune=arm7tdmi 63tune-$(CONFIG_CPU_ARM9TDMI) :=-mtune=arm9tdmi 64tune-$(CONFIG_CPU_ARM940T) :=-mtune=arm9tdmi 65tune-$(CONFIG_CPU_ARM946T) :=$(call cc-option,-mtune=arm9e,-mtune=arm9tdmi) 66tune-$(CONFIG_CPU_ARM920T) :=-mtune=arm9tdmi 67tune-$(CONFIG_CPU_ARM922T) :=-mtune=arm9tdmi 68tune-$(CONFIG_CPU_ARM925T) :=-mtune=arm9tdmi 69tune-$(CONFIG_CPU_ARM926T) :=-mtune=arm9tdmi 70tune-$(CONFIG_CPU_SA110) :=-mtune=strongarm110 71tune-$(CONFIG_CPU_SA1100) :=-mtune=strongarm1100 72tune-$(CONFIG_CPU_XSCALE) :=$(call cc-option,-mtune=xscale,-mtune=strongarm110) -Wa,-mcpu=xscale 73tune-$(CONFIG_CPU_XSC3) :=$(call cc-option,-mtune=xscale,-mtune=strongarm110) -Wa,-mcpu=xscale 74tune-$(CONFIG_CPU_V6) :=$(call cc-option,-mtune=arm1136j-s,-mtune=strongarm) 75 76ifeq ($(CONFIG_AEABI),y) 77CFLAGS_ABI :=-mabi=aapcs-linux -mno-thumb-interwork 78else 79CFLAGS_ABI :=$(call cc-option,-mapcs-32,-mabi=apcs-gnu) $(call cc-option,-mno-thumb-interwork,) 80endif 81 82# Need -Uarm for gcc < 3.x 83CFLAGS +=$(CFLAGS_ABI) $(arch-y) $(tune-y) $(call cc-option,-mshort-load-bytes,$(call cc-option,-malignment-traps,)) -msoft-float -Uarm 84AFLAGS +=$(CFLAGS_ABI) $(arch-y) $(tune-y) -msoft-float 85 86CHECKFLAGS += -D__arm__ 87 88#Default value 89head-y := arch/arm/kernel/head$(MMUEXT).o arch/arm/kernel/init_task.o 90textofs-y := 0x00008000 91 92 machine-$(CONFIG_ARCH_RPC) := rpc 93 machine-$(CONFIG_ARCH_EBSA110) := ebsa110 94 machine-$(CONFIG_ARCH_CLPS7500) := clps7500 95 incdir-$(CONFIG_ARCH_CLPS7500) := cl7500 96 machine-$(CONFIG_FOOTBRIDGE) := footbridge 97 incdir-$(CONFIG_FOOTBRIDGE) := ebsa285 98 machine-$(CONFIG_ARCH_CO285) := footbridge 99 incdir-$(CONFIG_ARCH_CO285) := ebsa285 100 machine-$(CONFIG_ARCH_SHARK) := shark 101 machine-$(CONFIG_ARCH_SA1100) := sa1100 102ifeq ($(CONFIG_ARCH_SA1100),y) 103# SA1111 DMA bug: we don't want the kernel to live in precious DMA-able memory 104 textofs-$(CONFIG_SA1111) := 0x00208000 105endif 106 machine-$(CONFIG_ARCH_PXA) := pxa 107 machine-$(CONFIG_ARCH_L7200) := l7200 108 machine-$(CONFIG_ARCH_INTEGRATOR) := integrator 109 textofs-$(CONFIG_ARCH_CLPS711X) := 0x00028000 110 machine-$(CONFIG_ARCH_CLPS711X) := clps711x 111 machine-$(CONFIG_ARCH_IOP32X) := iop32x 112 machine-$(CONFIG_ARCH_IOP33X) := iop33x 113 machine-$(CONFIG_ARCH_IOP13XX) := iop13xx 114 machine-$(CONFIG_ARCH_IXP4XX) := ixp4xx 115 machine-$(CONFIG_ARCH_IXP2000) := ixp2000 116 machine-$(CONFIG_ARCH_IXP23XX) := ixp23xx 117 machine-$(CONFIG_ARCH_OMAP1) := omap1 118 machine-$(CONFIG_ARCH_OMAP2) := omap2 119 incdir-$(CONFIG_ARCH_OMAP) := omap 120 machine-$(CONFIG_ARCH_S3C2410) := s3c2410 121 machine-$(CONFIG_ARCH_LH7A40X) := lh7a40x 122 machine-$(CONFIG_ARCH_VERSATILE) := versatile 123 machine-$(CONFIG_ARCH_IMX) := imx 124 machine-$(CONFIG_ARCH_H720X) := h720x 125 machine-$(CONFIG_ARCH_AAEC2000) := aaec2000 126 machine-$(CONFIG_ARCH_REALVIEW) := realview 127 machine-$(CONFIG_ARCH_AT91) := at91rm9200 128 machine-$(CONFIG_ARCH_EP93XX) := ep93xx 129 machine-$(CONFIG_ARCH_PNX4008) := pnx4008 130 machine-$(CONFIG_ARCH_NETX) := netx 131 132ifeq ($(CONFIG_ARCH_EBSA110),y) 133# This is what happens if you forget the IOCS16 line. 134# PCMCIA cards stop working. 135CFLAGS_3c589_cs.o :=-DISA_SIXTEEN_BIT_PERIPHERAL 136export CFLAGS_3c589_cs.o 137endif 138 139# The byte offset of the kernel image in RAM from the start of RAM. 140TEXT_OFFSET := $(textofs-y) 141 142ifeq ($(incdir-y),) 143incdir-y := $(machine-y) 144endif 145INCDIR := arch-$(incdir-y) 146 147ifneq ($(machine-y),) 148MACHINE := arch/arm/mach-$(machine-y)/ 149else 150MACHINE := 151endif 152 153export TEXT_OFFSET GZFLAGS MMUEXT 154 155# Do we have FASTFPE? 156FASTFPE :=arch/arm/fastfpe 157ifeq ($(FASTFPE),$(wildcard $(FASTFPE))) 158FASTFPE_OBJ :=$(FASTFPE)/ 159endif 160 161# If we have a machine-specific directory, then include it in the build. 162core-y += arch/arm/kernel/ arch/arm/mm/ arch/arm/common/ 163core-y += $(MACHINE) 164core-$(CONFIG_FPE_NWFPE) += arch/arm/nwfpe/ 165core-$(CONFIG_FPE_FASTFPE) += $(FASTFPE_OBJ) 166core-$(CONFIG_VFP) += arch/arm/vfp/ 167 168# If we have a common platform directory, then include it in the build. 169core-$(CONFIG_PLAT_IOP) += arch/arm/plat-iop/ 170core-$(CONFIG_ARCH_OMAP) += arch/arm/plat-omap/ 171 172drivers-$(CONFIG_OPROFILE) += arch/arm/oprofile/ 173drivers-$(CONFIG_ARCH_CLPS7500) += drivers/acorn/char/ 174drivers-$(CONFIG_ARCH_L7200) += drivers/acorn/char/ 175 176libs-y := arch/arm/lib/ $(libs-y) 177 178# Default target when executing plain make 179ifeq ($(CONFIG_XIP_KERNEL),y) 180KBUILD_IMAGE := xipImage 181else 182KBUILD_IMAGE := zImage 183endif 184 185all: $(KBUILD_IMAGE) 186 187boot := arch/arm/boot 188 189# Update machine arch and proc symlinks if something which affects 190# them changed. We use .arch to indicate when they were updated 191# last, otherwise make uses the target directory mtime. 192 193include/asm-arm/.arch: $(wildcard include/config/arch/*.h) include/config/auto.conf 194 @echo ' SYMLINK include/asm-arm/arch -> include/asm-arm/$(INCDIR)' 195ifneq ($(KBUILD_SRC),) 196 $(Q)mkdir -p include/asm-arm 197 $(Q)ln -fsn $(srctree)/include/asm-arm/$(INCDIR) include/asm-arm/arch 198else 199 $(Q)ln -fsn $(INCDIR) include/asm-arm/arch 200endif 201 @touch $@ 202 203archprepare: maketools 204 205PHONY += maketools FORCE 206maketools: include/linux/version.h include/asm-arm/.arch FORCE 207 $(Q)$(MAKE) $(build)=arch/arm/tools include/asm-arm/mach-types.h 208 209# Convert bzImage to zImage 210bzImage: zImage 211 212zImage Image xipImage bootpImage uImage: vmlinux 213 $(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $(boot)/$@ 214 215zinstall install: vmlinux 216 $(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $@ 217 218CLEAN_FILES += include/asm-arm/mach-types.h \ 219 include/asm-arm/arch include/asm-arm/.arch 220 221# We use MRPROPER_FILES and CLEAN_FILES now 222archclean: 223 $(Q)$(MAKE) $(clean)=$(boot) 224 225# My testing targets (bypasses dependencies) 226bp:; $(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $(boot)/bootpImage 227i zi:; $(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $@ 228 229 230define archhelp 231 echo '* zImage - Compressed kernel image (arch/$(ARCH)/boot/zImage)' 232 echo ' Image - Uncompressed kernel image (arch/$(ARCH)/boot/Image)' 233 echo '* xipImage - XIP kernel image, if configured (arch/$(ARCH)/boot/xipImage)' 234 echo ' bootpImage - Combined zImage and initial RAM disk' 235 echo ' (supply initrd image via make variable INITRD=<path>)' 236 echo ' install - Install uncompressed kernel' 237 echo ' zinstall - Install compressed kernel' 238 echo ' Install using (your) ~/bin/installkernel or' 239 echo ' (distribution) /sbin/installkernel or' 240 echo ' install to $$(INSTALL_PATH) and run lilo' 241endef 242