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default can be -mthumb: 19KBUILD_CFLAGS +=$(call cc-option,-marm,) 20 21# Do not use arch/arm/defconfig - it's always outdated. 22# Select a platform tht is kept up-to-date 23KBUILD_DEFCONFIG := versatile_defconfig 24 25# defines filename extension depending memory manement type.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 $(call cc-option,-march=armv7a,-march=armv5t -Wa$(comma)-march=armv7a) 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_ARM946T) :=$(call cc-option,-mtune=arm9e,-mtune=arm9tdmi) 71tune-$(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-$(CONFIG_ARCH_CLPS7500) := clps7500 100 incdir-$(CONFIG_ARCH_CLPS7500) := cl7500 101 machine-$(CONFIG_FOOTBRIDGE) := footbridge 102 incdir-$(CONFIG_FOOTBRIDGE) := ebsa285 103 machine-$(CONFIG_ARCH_CO285) := footbridge 104 incdir-$(CONFIG_ARCH_CO285) := ebsa285 105 machine-$(CONFIG_ARCH_SHARK) := shark 106 machine-$(CONFIG_ARCH_SA1100) := sa1100 107ifeq ($(CONFIG_ARCH_SA1100),y) 108# SA1111 DMA bug: we don't want the kernel to live in precious DMA-able memory 109 textofs-$(CONFIG_SA1111) := 0x00208000 110endif 111 machine-$(CONFIG_ARCH_PXA) := pxa 112 machine-$(CONFIG_ARCH_L7200) := l7200 113 machine-$(CONFIG_ARCH_INTEGRATOR) := integrator 114 textofs-$(CONFIG_ARCH_CLPS711X) := 0x00028000 115 machine-$(CONFIG_ARCH_CLPS711X) := clps711x 116 machine-$(CONFIG_ARCH_IOP32X) := iop32x 117 machine-$(CONFIG_ARCH_IOP33X) := iop33x 118 machine-$(CONFIG_ARCH_IOP13XX) := iop13xx 119 machine-$(CONFIG_ARCH_IXP4XX) := ixp4xx 120 machine-$(CONFIG_ARCH_IXP2000) := ixp2000 121 machine-$(CONFIG_ARCH_IXP23XX) := ixp23xx 122 machine-$(CONFIG_ARCH_OMAP1) := omap1 123 machine-$(CONFIG_ARCH_OMAP2) := omap2 124 incdir-$(CONFIG_ARCH_OMAP) := omap 125 machine-$(CONFIG_ARCH_S3C2410) := s3c2410 126 machine-$(CONFIG_ARCH_LH7A40X) := lh7a40x 127 machine-$(CONFIG_ARCH_VERSATILE) := versatile 128 machine-$(CONFIG_ARCH_IMX) := imx 129 machine-$(CONFIG_ARCH_H720X) := h720x 130 machine-$(CONFIG_ARCH_AAEC2000) := aaec2000 131 machine-$(CONFIG_ARCH_REALVIEW) := realview 132 machine-$(CONFIG_ARCH_AT91) := at91 133 machine-$(CONFIG_ARCH_EP93XX) := ep93xx 134 machine-$(CONFIG_ARCH_PNX4008) := pnx4008 135 machine-$(CONFIG_ARCH_NETX) := netx 136 machine-$(CONFIG_ARCH_NS9XXX) := ns9xxx 137 textofs-$(CONFIG_ARCH_NS9XXX) := 0x00108000 138 machine-$(CONFIG_ARCH_DAVINCI) := davinci 139 machine-$(CONFIG_ARCH_KS8695) := ks8695 140 incdir-$(CONFIG_ARCH_MXC) := mxc 141 machine-$(CONFIG_ARCH_MX3) := mx3 142 143ifeq ($(CONFIG_ARCH_EBSA110),y) 144# This is what happens if you forget the IOCS16 line. 145# PCMCIA cards stop working. 146CFLAGS_3c589_cs.o :=-DISA_SIXTEEN_BIT_PERIPHERAL 147export CFLAGS_3c589_cs.o 148endif 149 150# The byte offset of the kernel image in RAM from the start of RAM. 151TEXT_OFFSET := $(textofs-y) 152 153ifeq ($(incdir-y),) 154incdir-y := $(machine-y) 155endif 156INCDIR := arch-$(incdir-y) 157 158ifneq ($(machine-y),) 159MACHINE := arch/arm/mach-$(machine-y)/ 160else 161MACHINE := 162endif 163 164export TEXT_OFFSET GZFLAGS MMUEXT 165 166# Do we have FASTFPE? 167FASTFPE :=arch/arm/fastfpe 168ifeq ($(FASTFPE),$(wildcard $(FASTFPE))) 169FASTFPE_OBJ :=$(FASTFPE)/ 170endif 171 172# If we have a machine-specific directory, then include it in the build. 173core-y += arch/arm/kernel/ arch/arm/mm/ arch/arm/common/ 174core-y += $(MACHINE) 175core-$(CONFIG_ARCH_S3C2410) += arch/arm/mach-s3c2400/ 176core-$(CONFIG_ARCH_S3C2410) += arch/arm/mach-s3c2412/ 177core-$(CONFIG_ARCH_S3C2410) += arch/arm/mach-s3c2440/ 178core-$(CONFIG_ARCH_S3C2410) += arch/arm/mach-s3c2442/ 179core-$(CONFIG_ARCH_S3C2410) += arch/arm/mach-s3c2443/ 180core-$(CONFIG_FPE_NWFPE) += arch/arm/nwfpe/ 181core-$(CONFIG_FPE_FASTFPE) += $(FASTFPE_OBJ) 182core-$(CONFIG_VFP) += arch/arm/vfp/ 183 184# If we have a common platform directory, then include it in the build. 185core-$(CONFIG_PLAT_IOP) += arch/arm/plat-iop/ 186core-$(CONFIG_ARCH_OMAP) += arch/arm/plat-omap/ 187core-$(CONFIG_PLAT_S3C24XX) += arch/arm/plat-s3c24xx/ 188core-$(CONFIG_ARCH_MXC) += arch/arm/plat-mxc/ 189 190drivers-$(CONFIG_OPROFILE) += arch/arm/oprofile/ 191drivers-$(CONFIG_ARCH_CLPS7500) += drivers/acorn/char/ 192drivers-$(CONFIG_ARCH_L7200) += drivers/acorn/char/ 193 194libs-y := arch/arm/lib/ $(libs-y) 195 196# Default target when executing plain make 197ifeq ($(CONFIG_XIP_KERNEL),y) 198KBUILD_IMAGE := xipImage 199else 200KBUILD_IMAGE := zImage 201endif 202 203all: $(KBUILD_IMAGE) 204 205boot := arch/arm/boot 206 207# Update machine arch and proc symlinks if something which affects 208# them changed. We use .arch to indicate when they were updated 209# last, otherwise make uses the target directory mtime. 210 211include/asm-arm/.arch: $(wildcard include/config/arch/*.h) include/config/auto.conf 212 @echo ' SYMLINK include/asm-arm/arch -> include/asm-arm/$(INCDIR)' 213ifneq ($(KBUILD_SRC),) 214 $(Q)mkdir -p include/asm-arm 215 $(Q)ln -fsn $(srctree)/include/asm-arm/$(INCDIR) include/asm-arm/arch 216else 217 $(Q)ln -fsn $(INCDIR) include/asm-arm/arch 218endif 219 @touch $@ 220 221archprepare: maketools 222 223PHONY += maketools FORCE 224maketools: include/linux/version.h include/asm-arm/.arch FORCE 225 $(Q)$(MAKE) $(build)=arch/arm/tools include/asm-arm/mach-types.h 226 227# Convert bzImage to zImage 228bzImage: zImage 229 230zImage Image xipImage bootpImage uImage: vmlinux 231 $(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $(boot)/$@ 232 233zinstall install: vmlinux 234 $(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $@ 235 236CLEAN_FILES += include/asm-arm/mach-types.h \ 237 include/asm-arm/arch include/asm-arm/.arch 238 239# We use MRPROPER_FILES and CLEAN_FILES now 240archclean: 241 $(Q)$(MAKE) $(clean)=$(boot) 242 243# My testing targets (bypasses dependencies) 244bp:; $(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $(boot)/bootpImage 245i zi:; $(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $@ 246 247 248define archhelp 249 echo '* zImage - Compressed kernel image (arch/$(ARCH)/boot/zImage)' 250 echo ' Image - Uncompressed kernel image (arch/$(ARCH)/boot/Image)' 251 echo '* xipImage - XIP kernel image, if configured (arch/$(ARCH)/boot/xipImage)' 252 echo ' bootpImage - Combined zImage and initial RAM disk' 253 echo ' (supply initrd image via make variable INITRD=<path>)' 254 echo ' install - Install uncompressed kernel' 255 echo ' zinstall - Install compressed kernel' 256 echo ' Install using (your) ~/bin/installkernel or' 257 echo ' (distribution) /sbin/installkernel or' 258 echo ' install to $$(INSTALL_PATH) and run lilo' 259endef 260