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 13 LDFLAGS_vmlinux :=-p --no-undefined -X 14 CPPFLAGS_vmlinux.lds = -DTEXT_OFFSET=$(TEXT_OFFSET) 15 OBJCOPYFLAGS :=-O binary -R .note -R .comment -S 16 GZFLAGS :=-9 17 #CFLAGS +=-pipe 18 # Explicitly specifiy 32-bit ARM ISA since toolchain default can be -mthumb: 19 CFLAGS +=$(call cc-option,-marm,) 20 21 # Do not use arch/arm/defconfig - it's always outdated. 22 # Select a platform tht is kept up-to-date 23 KBUILD_DEFCONFIG := versatile_defconfig 24 25 # defines filename extension depending memory manement type. 26 ifeq ($(CONFIG_MMU),) 27 MMUEXT := -nommu 28 endif 29 30 ifeq ($(CONFIG_FRAME_POINTER),y) 31 CFLAGS +=-fno-omit-frame-pointer -mapcs -mno-sched-prolog 32 endif 33 34 ifeq ($(CONFIG_CPU_BIG_ENDIAN),y) 35 CPPFLAGS += -mbig-endian 36 AS += -EB 37 LD += -EB 38 else 39 CPPFLAGS += -mlittle-endian 40 AS += -EL 41 LD += -EL 42 endif 43 44 comma = , 45 46 # This selects which instruction set is used. 47 # Note that GCC does not numerically define an architecture version 48 # macro, but instead defines a whole series of macros which makes 49 # testing for a specific architecture or later rather impossible. 50 arch-$(CONFIG_CPU_32v7) :=-D__LINUX_ARM_ARCH__=7 $(call cc-option,-march=armv7a,-march=armv5t -Wa$(comma)-march=armv7a) 51 arch-$(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 54 ifeq ($(CONFIG_CPU_32v6),y) 55 arch-$(CONFIG_CPU_32v6K) :=-D__LINUX_ARM_ARCH__=6 $(call cc-option,-march=armv6k,-march=armv5t -Wa$(comma)-march=armv6k) 56 endif 57 arch-$(CONFIG_CPU_32v5) :=-D__LINUX_ARM_ARCH__=5 $(call cc-option,-march=armv5te,-march=armv4t) 58 arch-$(CONFIG_CPU_32v4T) :=-D__LINUX_ARM_ARCH__=4 -march=armv4t 59 arch-$(CONFIG_CPU_32v4) :=-D__LINUX_ARM_ARCH__=4 -march=armv4 60 arch-$(CONFIG_CPU_32v3) :=-D__LINUX_ARM_ARCH__=3 -march=armv3 61 62 # This selects how we optimise for the processor. 63 tune-$(CONFIG_CPU_ARM610) :=-mtune=arm610 64 tune-$(CONFIG_CPU_ARM710) :=-mtune=arm710 65 tune-$(CONFIG_CPU_ARM7TDMI) :=-mtune=arm7tdmi 66 tune-$(CONFIG_CPU_ARM720T) :=-mtune=arm7tdmi 67 tune-$(CONFIG_CPU_ARM740T) :=-mtune=arm7tdmi 68 tune-$(CONFIG_CPU_ARM9TDMI) :=-mtune=arm9tdmi 69 tune-$(CONFIG_CPU_ARM940T) :=-mtune=arm9tdmi 70 tune-$(CONFIG_CPU_ARM946T) :=$(call cc-option,-mtune=arm9e,-mtune=arm9tdmi) 71 tune-$(CONFIG_CPU_ARM920T) :=-mtune=arm9tdmi 72 tune-$(CONFIG_CPU_ARM922T) :=-mtune=arm9tdmi 73 tune-$(CONFIG_CPU_ARM925T) :=-mtune=arm9tdmi 74 tune-$(CONFIG_CPU_ARM926T) :=-mtune=arm9tdmi 75 tune-$(CONFIG_CPU_SA110) :=-mtune=strongarm110 76 tune-$(CONFIG_CPU_SA1100) :=-mtune=strongarm1100 77 tune-$(CONFIG_CPU_XSCALE) :=$(call cc-option,-mtune=xscale,-mtune=strongarm110) -Wa,-mcpu=xscale 78 tune-$(CONFIG_CPU_XSC3) :=$(call cc-option,-mtune=xscale,-mtune=strongarm110) -Wa,-mcpu=xscale 79 tune-$(CONFIG_CPU_V6) :=$(call cc-option,-mtune=arm1136j-s,-mtune=strongarm) 80 81 ifeq ($(CONFIG_AEABI),y) 82 CFLAGS_ABI :=-mabi=aapcs-linux -mno-thumb-interwork 83 else 84 CFLAGS_ABI :=$(call cc-option,-mapcs-32,-mabi=apcs-gnu) $(call cc-option,-mno-thumb-interwork,) 85 endif 86 87 # Need -Uarm for gcc < 3.x 88 CFLAGS +=$(CFLAGS_ABI) $(arch-y) $(tune-y) $(call cc-option,-mshort-load-bytes,$(call cc-option,-malignment-traps,)) -msoft-float -Uarm 89 AFLAGS +=$(CFLAGS_ABI) $(arch-y) $(tune-y) -msoft-float 90 91 CHECKFLAGS += -D__arm__ 92 93 #Default value 94 head-y := arch/arm/kernel/head$(MMUEXT).o arch/arm/kernel/init_task.o 95 textofs-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 107 ifeq ($(CONFIG_ARCH_SA1100),y) 108 # SA1111 DMA bug: we don't want the kernel to live in precious DMA-able memory 109 textofs-$(CONFIG_SA1111) := 0x00208000 110 endif 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-$(CONFIG_ARCH_NS9XXX) := 0x00108000 138 139 ifeq ($(CONFIG_ARCH_EBSA110),y) 140 # This is what happens if you forget the IOCS16 line. 141 # PCMCIA cards stop working. 142 CFLAGS_3c589_cs.o :=-DISA_SIXTEEN_BIT_PERIPHERAL 143 export CFLAGS_3c589_cs.o 144 endif 145 146 # The byte offset of the kernel image in RAM from the start of RAM. 147 TEXT_OFFSET := $(textofs-y) 148 149 ifeq ($(incdir-y),) 150 incdir-y := $(machine-y) 151 endif 152 INCDIR := arch-$(incdir-y) 153 154 ifneq ($(machine-y),) 155 MACHINE := arch/arm/mach-$(machine-y)/ 156 else 157 MACHINE := 158 endif 159 160 export TEXT_OFFSET GZFLAGS MMUEXT 161 162 # Do we have FASTFPE? 163 FASTFPE :=arch/arm/fastfpe 164 ifeq ($(FASTFPE),$(wildcard $(FASTFPE))) 165 FASTFPE_OBJ :=$(FASTFPE)/ 166 endif 167 168 # If we have a machine-specific directory, then include it in the build. 169 core-y += arch/arm/kernel/ arch/arm/mm/ arch/arm/common/ 170 core-y += $(MACHINE) 171 core-$(CONFIG_ARCH_S3C2410) += arch/arm/mach-s3c2400/ 172 core-$(CONFIG_ARCH_S3C2410) += arch/arm/mach-s3c2412/ 173 core-$(CONFIG_ARCH_S3C2410) += arch/arm/mach-s3c2440/ 174 core-$(CONFIG_ARCH_S3C2410) += arch/arm/mach-s3c2442/ 175 core-$(CONFIG_ARCH_S3C2410) += arch/arm/mach-s3c2443/ 176 core-$(CONFIG_FPE_NWFPE) += arch/arm/nwfpe/ 177 core-$(CONFIG_FPE_FASTFPE) += $(FASTFPE_OBJ) 178 core-$(CONFIG_VFP) += arch/arm/vfp/ 179 180 # If we have a common platform directory, then include it in the build. 181 core-$(CONFIG_PLAT_IOP) += arch/arm/plat-iop/ 182 core-$(CONFIG_ARCH_OMAP) += arch/arm/plat-omap/ 183 core-$(CONFIG_PLAT_S3C24XX) += arch/arm/plat-s3c24xx/ 184 185 drivers-$(CONFIG_OPROFILE) += arch/arm/oprofile/ 186 drivers-$(CONFIG_ARCH_CLPS7500) += drivers/acorn/char/ 187 drivers-$(CONFIG_ARCH_L7200) += drivers/acorn/char/ 188 189 libs-y := arch/arm/lib/ $(libs-y) 190 191 # Default target when executing plain make 192 ifeq ($(CONFIG_XIP_KERNEL),y) 193 KBUILD_IMAGE := xipImage 194 else 195 KBUILD_IMAGE := zImage 196 endif 197 198 all: $(KBUILD_IMAGE) 199 200 boot := arch/arm/boot 201 202 # Update machine arch and proc symlinks if something which affects 203 # them changed. We use .arch to indicate when they were updated 204 # last, otherwise make uses the target directory mtime. 205 206 include/asm-arm/.arch: $(wildcard include/config/arch/*.h) include/config/auto.conf 207 @echo ' SYMLINK include/asm-arm/arch -> include/asm-arm/$(INCDIR)' 208 ifneq ($(KBUILD_SRC),) 209 $(Q)mkdir -p include/asm-arm 210 $(Q)ln -fsn $(srctree)/include/asm-arm/$(INCDIR) include/asm-arm/arch 211 else 212 $(Q)ln -fsn $(INCDIR) include/asm-arm/arch 213 endif 214 @touch $@ 215 216 archprepare: maketools 217 218 PHONY += maketools FORCE 219 maketools: include/linux/version.h include/asm-arm/.arch FORCE 220 $(Q)$(MAKE) $(build)=arch/arm/tools include/asm-arm/mach-types.h 221 222 # Convert bzImage to zImage 223 bzImage: zImage 224 225 zImage Image xipImage bootpImage uImage: vmlinux 226 $(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $(boot)/$@ 227 228 zinstall install: vmlinux 229 $(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $@ 230 231 CLEAN_FILES += include/asm-arm/mach-types.h \ 232 include/asm-arm/arch include/asm-arm/.arch 233 234 # We use MRPROPER_FILES and CLEAN_FILES now 235 archclean: 236 $(Q)$(MAKE) $(clean)=$(boot) 237 238 # My testing targets (bypasses dependencies) 239 bp:; $(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $(boot)/bootpImage 240 i zi:; $(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $@ 241 242 243 define archhelp 244 echo '* zImage - Compressed kernel image (arch/$(ARCH)/boot/zImage)' 245 echo ' Image - Uncompressed kernel image (arch/$(ARCH)/boot/Image)' 246 echo '* xipImage - XIP kernel image, if configured (arch/$(ARCH)/boot/xipImage)' 247 echo ' bootpImage - Combined zImage and initial RAM disk' 248 echo ' (supply initrd image via make variable INITRD=<path>)' 249 echo ' install - Install uncompressed kernel' 250 echo ' zinstall - Install compressed kernel' 251 echo ' Install using (your) ~/bin/installkernel or' 252 echo ' (distribution) /sbin/installkernel or' 253 echo ' install to $$(INSTALL_PATH) and run lilo' 254 endef 255