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=$(TEXT_OFFSET) 15OBJCOPYFLAGS :=-O binary -R .note -R .comment -S 16GZFLAGS :=-9 17#CFLAGS +=-pipe 18 19# Do not use arch/arm/defconfig - it's always outdated. 20# Select a platform tht is kept up-to-date 21KBUILD_DEFCONFIG := versatile_defconfig 22 23# defines filename extension depending memory manement type. 24ifeq ($(CONFIG_MMU),) 25MMUEXT := -nommu 26endif 27 28ifeq ($(CONFIG_FRAME_POINTER),y) 29CFLAGS +=-fno-omit-frame-pointer -mapcs -mno-sched-prolog 30endif 31 32ifeq ($(CONFIG_CPU_BIG_ENDIAN),y) 33CPPFLAGS += -mbig-endian 34AS += -EB 35LD += -EB 36else 37CPPFLAGS += -mlittle-endian 38AS += -EL 39LD += -EL 40endif 41 42comma = , 43 44# This selects which instruction set is used. 45# Note that GCC does not numerically define an architecture version 46# macro, but instead defines a whole series of macros which makes 47# testing for a specific architecture or later rather impossible. 48arch-$(CONFIG_CPU_32v6) :=-D__LINUX_ARM_ARCH__=6 $(call cc-option,-march=armv6,-march=armv5t -Wa$(comma)-march=armv6) 49arch-$(CONFIG_CPU_32v6K) :=-D__LINUX_ARM_ARCH__=6 $(call cc-option,-march=armv6k,-march=armv5t -Wa$(comma)-march=armv6k) 50arch-$(CONFIG_CPU_32v5) :=-D__LINUX_ARM_ARCH__=5 $(call cc-option,-march=armv5te,-march=armv4) 51arch-$(CONFIG_CPU_32v4) :=-D__LINUX_ARM_ARCH__=4 -march=armv4 52arch-$(CONFIG_CPU_32v3) :=-D__LINUX_ARM_ARCH__=3 -march=armv3 53 54# This selects how we optimise for the processor. 55tune-$(CONFIG_CPU_ARM610) :=-mtune=arm610 56tune-$(CONFIG_CPU_ARM710) :=-mtune=arm710 57tune-$(CONFIG_CPU_ARM720T) :=-mtune=arm7tdmi 58tune-$(CONFIG_CPU_ARM920T) :=-mtune=arm9tdmi 59tune-$(CONFIG_CPU_ARM922T) :=-mtune=arm9tdmi 60tune-$(CONFIG_CPU_ARM925T) :=-mtune=arm9tdmi 61tune-$(CONFIG_CPU_ARM926T) :=-mtune=arm9tdmi 62tune-$(CONFIG_CPU_SA110) :=-mtune=strongarm110 63tune-$(CONFIG_CPU_SA1100) :=-mtune=strongarm1100 64tune-$(CONFIG_CPU_XSCALE) :=$(call cc-option,-mtune=xscale,-mtune=strongarm110) -Wa,-mcpu=xscale 65tune-$(CONFIG_CPU_XSC3) :=$(call cc-option,-mtune=xscale,-mtune=strongarm110) -Wa,-mcpu=xscale 66tune-$(CONFIG_CPU_V6) :=$(call cc-option,-mtune=arm1136j-s,-mtune=strongarm) 67 68ifeq ($(CONFIG_AEABI),y) 69CFLAGS_ABI :=-mabi=aapcs-linux -mno-thumb-interwork 70else 71CFLAGS_ABI :=$(call cc-option,-mapcs-32,-mabi=apcs-gnu) $(call cc-option,-mno-thumb-interwork,) 72endif 73 74# Need -Uarm for gcc < 3.x 75CFLAGS +=$(CFLAGS_ABI) $(arch-y) $(tune-y) $(call cc-option,-mshort-load-bytes,$(call cc-option,-malignment-traps,)) -msoft-float -Uarm 76AFLAGS +=$(CFLAGS_ABI) $(arch-y) $(tune-y) -msoft-float 77 78CHECKFLAGS += -D__arm__ 79 80#Default value 81head-y := arch/arm/kernel/head$(MMUEXT).o arch/arm/kernel/init_task.o 82textofs-y := 0x00008000 83 84 machine-$(CONFIG_ARCH_RPC) := rpc 85 machine-$(CONFIG_ARCH_EBSA110) := ebsa110 86 machine-$(CONFIG_ARCH_CLPS7500) := clps7500 87 incdir-$(CONFIG_ARCH_CLPS7500) := cl7500 88 machine-$(CONFIG_FOOTBRIDGE) := footbridge 89 incdir-$(CONFIG_FOOTBRIDGE) := ebsa285 90 machine-$(CONFIG_ARCH_CO285) := footbridge 91 incdir-$(CONFIG_ARCH_CO285) := ebsa285 92 machine-$(CONFIG_ARCH_SHARK) := shark 93 machine-$(CONFIG_ARCH_SA1100) := sa1100 94ifeq ($(CONFIG_ARCH_SA1100),y) 95# SA1111 DMA bug: we don't want the kernel to live in precious DMA-able memory 96 textofs-$(CONFIG_SA1111) := 0x00208000 97endif 98 machine-$(CONFIG_ARCH_PXA) := pxa 99 machine-$(CONFIG_ARCH_L7200) := l7200 100 machine-$(CONFIG_ARCH_INTEGRATOR) := integrator 101 textofs-$(CONFIG_ARCH_CLPS711X) := 0x00028000 102 machine-$(CONFIG_ARCH_CLPS711X) := clps711x 103 machine-$(CONFIG_ARCH_IOP3XX) := iop3xx 104 machine-$(CONFIG_ARCH_IXP4XX) := ixp4xx 105 machine-$(CONFIG_ARCH_IXP2000) := ixp2000 106 machine-$(CONFIG_ARCH_IXP23XX) := ixp23xx 107 machine-$(CONFIG_ARCH_OMAP1) := omap1 108 machine-$(CONFIG_ARCH_OMAP2) := omap2 109 incdir-$(CONFIG_ARCH_OMAP) := omap 110 machine-$(CONFIG_ARCH_S3C2410) := s3c2410 111 machine-$(CONFIG_ARCH_LH7A40X) := lh7a40x 112 machine-$(CONFIG_ARCH_VERSATILE) := versatile 113 machine-$(CONFIG_ARCH_IMX) := imx 114 machine-$(CONFIG_ARCH_H720X) := h720x 115 machine-$(CONFIG_ARCH_AAEC2000) := aaec2000 116 machine-$(CONFIG_ARCH_REALVIEW) := realview 117 machine-$(CONFIG_ARCH_AT91RM9200) := at91rm9200 118 machine-$(CONFIG_ARCH_EP93XX) := ep93xx 119 machine-$(CONFIG_ARCH_PNX4008) := pnx4008 120 machine-$(CONFIG_ARCH_NETX) := netx 121 122ifeq ($(CONFIG_ARCH_EBSA110),y) 123# This is what happens if you forget the IOCS16 line. 124# PCMCIA cards stop working. 125CFLAGS_3c589_cs.o :=-DISA_SIXTEEN_BIT_PERIPHERAL 126export CFLAGS_3c589_cs.o 127endif 128 129# The byte offset of the kernel image in RAM from the start of RAM. 130TEXT_OFFSET := $(textofs-y) 131 132ifeq ($(incdir-y),) 133incdir-y := $(machine-y) 134endif 135INCDIR := arch-$(incdir-y) 136 137ifneq ($(machine-y),) 138MACHINE := arch/arm/mach-$(machine-y)/ 139else 140MACHINE := 141endif 142 143export TEXT_OFFSET GZFLAGS MMUEXT 144 145# Do we have FASTFPE? 146FASTFPE :=arch/arm/fastfpe 147ifeq ($(FASTFPE),$(wildcard $(FASTFPE))) 148FASTFPE_OBJ :=$(FASTFPE)/ 149endif 150 151# If we have a machine-specific directory, then include it in the build. 152core-y += arch/arm/kernel/ arch/arm/mm/ arch/arm/common/ 153core-y += $(MACHINE) 154core-$(CONFIG_FPE_NWFPE) += arch/arm/nwfpe/ 155core-$(CONFIG_FPE_FASTFPE) += $(FASTFPE_OBJ) 156core-$(CONFIG_VFP) += arch/arm/vfp/ 157 158# If we have a common platform directory, then include it in the build. 159core-$(CONFIG_ARCH_OMAP) += arch/arm/plat-omap/ 160 161drivers-$(CONFIG_OPROFILE) += arch/arm/oprofile/ 162drivers-$(CONFIG_ARCH_CLPS7500) += drivers/acorn/char/ 163drivers-$(CONFIG_ARCH_L7200) += drivers/acorn/char/ 164 165libs-y := arch/arm/lib/ $(libs-y) 166 167# Default target when executing plain make 168ifeq ($(CONFIG_XIP_KERNEL),y) 169all: xipImage 170else 171all: zImage 172endif 173 174boot := arch/arm/boot 175 176# Update machine arch and proc symlinks if something which affects 177# them changed. We use .arch to indicate when they were updated 178# last, otherwise make uses the target directory mtime. 179 180include/asm-arm/.arch: $(wildcard include/config/arch/*.h) include/config/MARKER 181 @echo ' SYMLINK include/asm-arm/arch -> include/asm-arm/$(INCDIR)' 182ifneq ($(KBUILD_SRC),) 183 $(Q)mkdir -p include/asm-arm 184 $(Q)ln -fsn $(srctree)/include/asm-arm/$(INCDIR) include/asm-arm/arch 185else 186 $(Q)ln -fsn $(INCDIR) include/asm-arm/arch 187endif 188 @touch $@ 189 190archprepare: maketools 191 192PHONY += maketools FORCE 193maketools: include/linux/version.h include/asm-arm/.arch FORCE 194 $(Q)$(MAKE) $(build)=arch/arm/tools include/asm-arm/mach-types.h 195 196# Convert bzImage to zImage 197bzImage: zImage 198 199zImage Image xipImage bootpImage uImage: vmlinux 200 $(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $(boot)/$@ 201 202zinstall install: vmlinux 203 $(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $@ 204 205CLEAN_FILES += include/asm-arm/mach-types.h \ 206 include/asm-arm/arch include/asm-arm/.arch 207 208# We use MRPROPER_FILES and CLEAN_FILES now 209archclean: 210 $(Q)$(MAKE) $(clean)=$(boot) 211 212# My testing targets (bypasses dependencies) 213bp:; $(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $(boot)/bootpImage 214i zi:; $(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $@ 215 216 217define archhelp 218 echo '* zImage - Compressed kernel image (arch/$(ARCH)/boot/zImage)' 219 echo ' Image - Uncompressed kernel image (arch/$(ARCH)/boot/Image)' 220 echo '* xipImage - XIP kernel image, if configured (arch/$(ARCH)/boot/xipImage)' 221 echo ' bootpImage - Combined zImage and initial RAM disk' 222 echo ' (supply initrd image via make variable INITRD=<path>)' 223 echo ' install - Install uncompressed kernel' 224 echo ' zinstall - Install compressed kernel' 225 echo ' Install using (your) ~/bin/installkernel or' 226 echo ' (distribution) /sbin/installkernel or' 227 echo ' install to $$(INSTALL_PATH) and run lilo' 228endef 229