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# Ensure linker flags are correct 14LDFLAGS := 15 16LDFLAGS_vmlinux :=-p --no-undefined -X 17ifeq ($(CONFIG_CPU_ENDIAN_BE8),y) 18LDFLAGS_vmlinux += --be8 19endif 20 21OBJCOPYFLAGS :=-O binary -R .comment -S 22GZFLAGS :=-9 23#KBUILD_CFLAGS +=-pipe 24 25# Never generate .eh_frame 26KBUILD_CFLAGS += $(call cc-option,-fno-dwarf2-cfi-asm) 27 28# Do not use arch/arm/defconfig - it's always outdated. 29# Select a platform tht is kept up-to-date 30KBUILD_DEFCONFIG := versatile_defconfig 31 32# defines filename extension depending memory management type. 33ifeq ($(CONFIG_MMU),) 34MMUEXT := -nommu 35KBUILD_CFLAGS += $(call cc-option,-mno-unaligned-access) 36endif 37 38ifeq ($(CONFIG_FRAME_POINTER),y) 39KBUILD_CFLAGS +=-fno-omit-frame-pointer -mapcs -mno-sched-prolog 40endif 41 42ifeq ($(CONFIG_CC_STACKPROTECTOR),y) 43KBUILD_CFLAGS +=-fstack-protector 44endif 45 46ifeq ($(CONFIG_CPU_BIG_ENDIAN),y) 47KBUILD_CPPFLAGS += -mbig-endian 48AS += -EB 49LD += -EB 50else 51KBUILD_CPPFLAGS += -mlittle-endian 52AS += -EL 53LD += -EL 54endif 55 56comma = , 57 58# This selects which instruction set is used. 59# Note that GCC does not numerically define an architecture version 60# macro, but instead defines a whole series of macros which makes 61# testing for a specific architecture or later rather impossible. 62arch-$(CONFIG_CPU_32v7M) =-D__LINUX_ARM_ARCH__=7 -march=armv7-m -Wa,-march=armv7-m 63arch-$(CONFIG_CPU_32v7) =-D__LINUX_ARM_ARCH__=7 $(call cc-option,-march=armv7-a,-march=armv5t -Wa$(comma)-march=armv7-a) 64arch-$(CONFIG_CPU_32v6) =-D__LINUX_ARM_ARCH__=6 $(call cc-option,-march=armv6,-march=armv5t -Wa$(comma)-march=armv6) 65# Only override the compiler option if ARMv6. The ARMv6K extensions are 66# always available in ARMv7 67ifeq ($(CONFIG_CPU_32v6),y) 68arch-$(CONFIG_CPU_32v6K) =-D__LINUX_ARM_ARCH__=6 $(call cc-option,-march=armv6k,-march=armv5t -Wa$(comma)-march=armv6k) 69endif 70arch-$(CONFIG_CPU_32v5) =-D__LINUX_ARM_ARCH__=5 $(call cc-option,-march=armv5te,-march=armv4t) 71arch-$(CONFIG_CPU_32v4T) =-D__LINUX_ARM_ARCH__=4 -march=armv4t 72arch-$(CONFIG_CPU_32v4) =-D__LINUX_ARM_ARCH__=4 -march=armv4 73arch-$(CONFIG_CPU_32v3) =-D__LINUX_ARM_ARCH__=3 -march=armv3 74 75# Evaluate arch cc-option calls now 76arch-y := $(arch-y) 77 78# This selects how we optimise for the processor. 79tune-$(CONFIG_CPU_ARM7TDMI) =-mtune=arm7tdmi 80tune-$(CONFIG_CPU_ARM720T) =-mtune=arm7tdmi 81tune-$(CONFIG_CPU_ARM740T) =-mtune=arm7tdmi 82tune-$(CONFIG_CPU_ARM9TDMI) =-mtune=arm9tdmi 83tune-$(CONFIG_CPU_ARM940T) =-mtune=arm9tdmi 84tune-$(CONFIG_CPU_ARM946E) =$(call cc-option,-mtune=arm9e,-mtune=arm9tdmi) 85tune-$(CONFIG_CPU_ARM920T) =-mtune=arm9tdmi 86tune-$(CONFIG_CPU_ARM922T) =-mtune=arm9tdmi 87tune-$(CONFIG_CPU_ARM925T) =-mtune=arm9tdmi 88tune-$(CONFIG_CPU_ARM926T) =-mtune=arm9tdmi 89tune-$(CONFIG_CPU_FA526) =-mtune=arm9tdmi 90tune-$(CONFIG_CPU_SA110) =-mtune=strongarm110 91tune-$(CONFIG_CPU_SA1100) =-mtune=strongarm1100 92tune-$(CONFIG_CPU_XSCALE) =$(call cc-option,-mtune=xscale,-mtune=strongarm110) -Wa,-mcpu=xscale 93tune-$(CONFIG_CPU_XSC3) =$(call cc-option,-mtune=xscale,-mtune=strongarm110) -Wa,-mcpu=xscale 94tune-$(CONFIG_CPU_FEROCEON) =$(call cc-option,-mtune=marvell-f,-mtune=xscale) 95tune-$(CONFIG_CPU_V6) =$(call cc-option,-mtune=arm1136j-s,-mtune=strongarm) 96tune-$(CONFIG_CPU_V6K) =$(call cc-option,-mtune=arm1136j-s,-mtune=strongarm) 97 98# Evaluate tune cc-option calls now 99tune-y := $(tune-y) 100 101ifeq ($(CONFIG_AEABI),y) 102CFLAGS_ABI :=-mabi=aapcs-linux -mno-thumb-interwork 103else 104CFLAGS_ABI :=$(call cc-option,-mapcs-32,-mabi=apcs-gnu) $(call cc-option,-mno-thumb-interwork,) 105endif 106 107ifeq ($(CONFIG_ARM_UNWIND),y) 108CFLAGS_ABI +=-funwind-tables 109endif 110 111ifeq ($(CONFIG_THUMB2_KERNEL),y) 112AFLAGS_AUTOIT :=$(call as-option,-Wa$(comma)-mimplicit-it=always,-Wa$(comma)-mauto-it) 113AFLAGS_NOWARN :=$(call as-option,-Wa$(comma)-mno-warn-deprecated,-Wa$(comma)-W) 114CFLAGS_ISA :=-mthumb $(AFLAGS_AUTOIT) $(AFLAGS_NOWARN) 115AFLAGS_ISA :=$(CFLAGS_ISA) -Wa$(comma)-mthumb 116# Work around buggy relocation from gas if requested: 117ifeq ($(CONFIG_THUMB2_AVOID_R_ARM_THM_JUMP11),y) 118CFLAGS_MODULE +=-fno-optimize-sibling-calls 119endif 120else 121CFLAGS_ISA :=$(call cc-option,-marm,) 122AFLAGS_ISA :=$(CFLAGS_ISA) 123endif 124 125# Need -Uarm for gcc < 3.x 126KBUILD_CFLAGS +=$(CFLAGS_ABI) $(CFLAGS_ISA) $(arch-y) $(tune-y) $(call cc-option,-mshort-load-bytes,$(call cc-option,-malignment-traps,)) -msoft-float -Uarm 127KBUILD_AFLAGS +=$(CFLAGS_ABI) $(AFLAGS_ISA) $(arch-y) $(tune-y) -include asm/unified.h -msoft-float 128 129CHECKFLAGS += -D__arm__ 130 131#Default value 132head-y := arch/arm/kernel/head$(MMUEXT).o 133textofs-y := 0x00008000 134textofs-$(CONFIG_ARCH_CLPS711X) := 0x00028000 135# We don't want the htc bootloader to corrupt kernel during resume 136textofs-$(CONFIG_PM_H1940) := 0x00108000 137# SA1111 DMA bug: we don't want the kernel to live in precious DMA-able memory 138ifeq ($(CONFIG_ARCH_SA1100),y) 139textofs-$(CONFIG_SA1111) := 0x00208000 140endif 141textofs-$(CONFIG_ARCH_MSM7X30) := 0x00208000 142textofs-$(CONFIG_ARCH_MSM8X60) := 0x00208000 143textofs-$(CONFIG_ARCH_MSM8960) := 0x00208000 144 145# Machine directory name. This list is sorted alphanumerically 146# by CONFIG_* macro name. 147machine-$(CONFIG_ARCH_AT91) += at91 148machine-$(CONFIG_ARCH_BCM) += bcm 149machine-$(CONFIG_ARCH_BCM2835) += bcm2835 150machine-$(CONFIG_ARCH_CLPS711X) += clps711x 151machine-$(CONFIG_ARCH_CNS3XXX) += cns3xxx 152machine-$(CONFIG_ARCH_DAVINCI) += davinci 153machine-$(CONFIG_ARCH_DOVE) += dove 154machine-$(CONFIG_ARCH_EBSA110) += ebsa110 155machine-$(CONFIG_ARCH_EP93XX) += ep93xx 156machine-$(CONFIG_ARCH_GEMINI) += gemini 157machine-$(CONFIG_ARCH_HIGHBANK) += highbank 158machine-$(CONFIG_ARCH_INTEGRATOR) += integrator 159machine-$(CONFIG_ARCH_IOP13XX) += iop13xx 160machine-$(CONFIG_ARCH_IOP32X) += iop32x 161machine-$(CONFIG_ARCH_IOP33X) += iop33x 162machine-$(CONFIG_ARCH_IXP4XX) += ixp4xx 163machine-$(CONFIG_ARCH_KIRKWOOD) += kirkwood 164machine-$(CONFIG_ARCH_KS8695) += ks8695 165machine-$(CONFIG_ARCH_LPC32XX) += lpc32xx 166machine-$(CONFIG_ARCH_MMP) += mmp 167machine-$(CONFIG_ARCH_MSM) += msm 168machine-$(CONFIG_ARCH_MV78XX0) += mv78xx0 169machine-$(CONFIG_ARCH_MXC) += imx 170machine-$(CONFIG_ARCH_MXS) += mxs 171machine-$(CONFIG_ARCH_MVEBU) += mvebu 172machine-$(CONFIG_ARCH_NETX) += netx 173machine-$(CONFIG_ARCH_NOMADIK) += nomadik 174machine-$(CONFIG_ARCH_NSPIRE) += nspire 175machine-$(CONFIG_ARCH_OMAP1) += omap1 176machine-$(CONFIG_ARCH_OMAP2PLUS) += omap2 177machine-$(CONFIG_ARCH_ORION5X) += orion5x 178machine-$(CONFIG_ARCH_PICOXCELL) += picoxcell 179machine-$(CONFIG_ARCH_SIRF) += prima2 180machine-$(CONFIG_ARCH_PXA) += pxa 181machine-$(CONFIG_ARCH_REALVIEW) += realview 182machine-$(CONFIG_ARCH_ROCKCHIP) += rockchip 183machine-$(CONFIG_ARCH_RPC) += rpc 184machine-$(CONFIG_ARCH_S3C24XX) += s3c24xx 185machine-$(CONFIG_ARCH_S3C64XX) += s3c64xx 186machine-$(CONFIG_ARCH_S5P64X0) += s5p64x0 187machine-$(CONFIG_ARCH_S5PC100) += s5pc100 188machine-$(CONFIG_ARCH_S5PV210) += s5pv210 189machine-$(CONFIG_ARCH_EXYNOS) += exynos 190machine-$(CONFIG_ARCH_SA1100) += sa1100 191machine-$(CONFIG_ARCH_SHARK) += shark 192machine-$(CONFIG_ARCH_SHMOBILE) += shmobile 193machine-$(CONFIG_ARCH_TEGRA) += tegra 194machine-$(CONFIG_ARCH_U300) += u300 195machine-$(CONFIG_ARCH_U8500) += ux500 196machine-$(CONFIG_ARCH_VERSATILE) += versatile 197machine-$(CONFIG_ARCH_VEXPRESS) += vexpress 198machine-$(CONFIG_ARCH_VT8500) += vt8500 199machine-$(CONFIG_ARCH_W90X900) += w90x900 200machine-$(CONFIG_FOOTBRIDGE) += footbridge 201machine-$(CONFIG_ARCH_SOCFPGA) += socfpga 202machine-$(CONFIG_PLAT_SPEAR) += spear 203machine-$(CONFIG_ARCH_STI) += sti 204machine-$(CONFIG_ARCH_VIRT) += virt 205machine-$(CONFIG_ARCH_ZYNQ) += zynq 206machine-$(CONFIG_ARCH_SUNXI) += sunxi 207machine-$(CONFIG_ARCH_KEYSTONE) += keystone 208 209# Platform directory name. This list is sorted alphanumerically 210# by CONFIG_* macro name. 211plat-$(CONFIG_ARCH_EXYNOS) += samsung 212plat-$(CONFIG_ARCH_OMAP) += omap 213plat-$(CONFIG_ARCH_S3C64XX) += samsung 214plat-$(CONFIG_PLAT_IOP) += iop 215plat-$(CONFIG_PLAT_ORION) += orion 216plat-$(CONFIG_PLAT_PXA) += pxa 217plat-$(CONFIG_PLAT_S3C24XX) += samsung 218plat-$(CONFIG_PLAT_S5P) += samsung 219plat-$(CONFIG_PLAT_VERSATILE) += versatile 220 221ifeq ($(CONFIG_ARCH_EBSA110),y) 222# This is what happens if you forget the IOCS16 line. 223# PCMCIA cards stop working. 224CFLAGS_3c589_cs.o :=-DISA_SIXTEEN_BIT_PERIPHERAL 225export CFLAGS_3c589_cs.o 226endif 227 228# The byte offset of the kernel image in RAM from the start of RAM. 229TEXT_OFFSET := $(textofs-y) 230 231# The first directory contains additional information for the boot setup code 232ifneq ($(machine-y),) 233MACHINE := arch/arm/mach-$(word 1,$(machine-y))/ 234else 235MACHINE := 236endif 237ifeq ($(CONFIG_ARCH_MULTIPLATFORM),y) 238MACHINE := 239endif 240 241machdirs := $(patsubst %,arch/arm/mach-%/,$(machine-y)) 242platdirs := $(patsubst %,arch/arm/plat-%/,$(plat-y)) 243 244ifneq ($(CONFIG_ARCH_MULTIPLATFORM),y) 245ifeq ($(KBUILD_SRC),) 246KBUILD_CPPFLAGS += $(patsubst %,-I%include,$(machdirs) $(platdirs)) 247else 248KBUILD_CPPFLAGS += $(patsubst %,-I$(srctree)/%include,$(machdirs) $(platdirs)) 249endif 250endif 251 252export TEXT_OFFSET GZFLAGS MMUEXT 253 254# Do we have FASTFPE? 255FASTFPE :=arch/arm/fastfpe 256ifeq ($(FASTFPE),$(wildcard $(FASTFPE))) 257FASTFPE_OBJ :=$(FASTFPE)/ 258endif 259 260core-$(CONFIG_FPE_NWFPE) += arch/arm/nwfpe/ 261core-$(CONFIG_FPE_FASTFPE) += $(FASTFPE_OBJ) 262core-$(CONFIG_VFP) += arch/arm/vfp/ 263core-$(CONFIG_XEN) += arch/arm/xen/ 264core-$(CONFIG_KVM_ARM_HOST) += arch/arm/kvm/ 265 266# If we have a machine-specific directory, then include it in the build. 267core-y += arch/arm/kernel/ arch/arm/mm/ arch/arm/common/ 268core-y += arch/arm/net/ 269core-y += arch/arm/crypto/ 270core-y += $(machdirs) $(platdirs) 271 272drivers-$(CONFIG_OPROFILE) += arch/arm/oprofile/ 273 274libs-y := arch/arm/lib/ $(libs-y) 275 276# Default target when executing plain make 277ifeq ($(CONFIG_XIP_KERNEL),y) 278KBUILD_IMAGE := xipImage 279else 280KBUILD_IMAGE := zImage 281endif 282 283# Build the DT binary blobs if we have OF configured 284ifeq ($(CONFIG_USE_OF),y) 285KBUILD_DTBS := dtbs 286endif 287 288all: $(KBUILD_IMAGE) $(KBUILD_DTBS) 289 290boot := arch/arm/boot 291 292archprepare: 293 $(Q)$(MAKE) $(build)=arch/arm/tools include/generated/mach-types.h 294 295# Convert bzImage to zImage 296bzImage: zImage 297 298zImage Image xipImage bootpImage uImage: vmlinux 299 $(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $(boot)/$@ 300 301zinstall uinstall install: vmlinux 302 $(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $@ 303 304%.dtb: | scripts 305 $(Q)$(MAKE) $(build)=$(boot)/dts MACHINE=$(MACHINE) $(boot)/dts/$@ 306 307PHONY += dtbs 308dtbs: scripts 309 $(Q)$(MAKE) $(build)=$(boot)/dts MACHINE=$(MACHINE) dtbs 310 311# We use MRPROPER_FILES and CLEAN_FILES now 312archclean: 313 $(Q)$(MAKE) $(clean)=$(boot) 314 315# My testing targets (bypasses dependencies) 316bp:; $(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $(boot)/bootpImage 317i zi:; $(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $@ 318 319 320define archhelp 321 echo '* zImage - Compressed kernel image (arch/$(ARCH)/boot/zImage)' 322 echo ' Image - Uncompressed kernel image (arch/$(ARCH)/boot/Image)' 323 echo '* xipImage - XIP kernel image, if configured (arch/$(ARCH)/boot/xipImage)' 324 echo ' uImage - U-Boot wrapped zImage' 325 echo ' bootpImage - Combined zImage and initial RAM disk' 326 echo ' (supply initrd image via make variable INITRD=<path>)' 327 echo '* dtbs - Build device tree blobs for enabled boards' 328 echo ' install - Install uncompressed kernel' 329 echo ' zinstall - Install compressed kernel' 330 echo ' uinstall - Install U-Boot wrapped compressed kernel' 331 echo ' Install using (your) ~/bin/$(INSTALLKERNEL) or' 332 echo ' (distribution) /sbin/$(INSTALLKERNEL) or' 333 echo ' install to $$(INSTALL_PATH) and run lilo' 334endef 335