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 19LDFLAGS_MODULE += --be8 20endif 21 22OBJCOPYFLAGS :=-O binary -R .comment -S 23GZFLAGS :=-9 24#KBUILD_CFLAGS +=-pipe 25 26# Never generate .eh_frame 27KBUILD_CFLAGS += $(call cc-option,-fno-dwarf2-cfi-asm) 28 29# Do not use arch/arm/defconfig - it's always outdated. 30# Select a platform tht is kept up-to-date 31KBUILD_DEFCONFIG := versatile_defconfig 32 33# defines filename extension depending memory management type. 34ifeq ($(CONFIG_MMU),) 35MMUEXT := -nommu 36KBUILD_CFLAGS += $(call cc-option,-mno-unaligned-access) 37endif 38 39ifeq ($(CONFIG_FRAME_POINTER),y) 40KBUILD_CFLAGS +=-fno-omit-frame-pointer -mapcs -mno-sched-prolog 41endif 42 43ifeq ($(CONFIG_CPU_BIG_ENDIAN),y) 44KBUILD_CPPFLAGS += -mbig-endian 45AS += -EB 46LD += -EB 47else 48KBUILD_CPPFLAGS += -mlittle-endian 49AS += -EL 50LD += -EL 51endif 52 53comma = , 54 55# This selects which instruction set is used. 56# Note that GCC does not numerically define an architecture version 57# macro, but instead defines a whole series of macros which makes 58# testing for a specific architecture or later rather impossible. 59arch-$(CONFIG_CPU_32v7M) =-D__LINUX_ARM_ARCH__=7 -march=armv7-m -Wa,-march=armv7-m 60arch-$(CONFIG_CPU_32v7) =-D__LINUX_ARM_ARCH__=7 $(call cc-option,-march=armv7-a,-march=armv5t -Wa$(comma)-march=armv7-a) 61arch-$(CONFIG_CPU_32v6) =-D__LINUX_ARM_ARCH__=6 $(call cc-option,-march=armv6,-march=armv5t -Wa$(comma)-march=armv6) 62# Only override the compiler option if ARMv6. The ARMv6K extensions are 63# always available in ARMv7 64ifeq ($(CONFIG_CPU_32v6),y) 65arch-$(CONFIG_CPU_32v6K) =-D__LINUX_ARM_ARCH__=6 $(call cc-option,-march=armv6k,-march=armv5t -Wa$(comma)-march=armv6k) 66endif 67arch-$(CONFIG_CPU_32v5) =-D__LINUX_ARM_ARCH__=5 $(call cc-option,-march=armv5te,-march=armv4t) 68arch-$(CONFIG_CPU_32v4T) =-D__LINUX_ARM_ARCH__=4 -march=armv4t 69arch-$(CONFIG_CPU_32v4) =-D__LINUX_ARM_ARCH__=4 -march=armv4 70arch-$(CONFIG_CPU_32v3) =-D__LINUX_ARM_ARCH__=3 -march=armv3 71 72# Evaluate arch cc-option calls now 73arch-y := $(arch-y) 74 75# This selects how we optimise for the processor. 76tune-$(CONFIG_CPU_ARM7TDMI) =-mtune=arm7tdmi 77tune-$(CONFIG_CPU_ARM720T) =-mtune=arm7tdmi 78tune-$(CONFIG_CPU_ARM740T) =-mtune=arm7tdmi 79tune-$(CONFIG_CPU_ARM9TDMI) =-mtune=arm9tdmi 80tune-$(CONFIG_CPU_ARM940T) =-mtune=arm9tdmi 81tune-$(CONFIG_CPU_ARM946E) =$(call cc-option,-mtune=arm9e,-mtune=arm9tdmi) 82tune-$(CONFIG_CPU_ARM920T) =-mtune=arm9tdmi 83tune-$(CONFIG_CPU_ARM922T) =-mtune=arm9tdmi 84tune-$(CONFIG_CPU_ARM925T) =-mtune=arm9tdmi 85tune-$(CONFIG_CPU_ARM926T) =-mtune=arm9tdmi 86tune-$(CONFIG_CPU_FA526) =-mtune=arm9tdmi 87tune-$(CONFIG_CPU_SA110) =-mtune=strongarm110 88tune-$(CONFIG_CPU_SA1100) =-mtune=strongarm1100 89tune-$(CONFIG_CPU_XSCALE) =$(call cc-option,-mtune=xscale,-mtune=strongarm110) -Wa,-mcpu=xscale 90tune-$(CONFIG_CPU_XSC3) =$(call cc-option,-mtune=xscale,-mtune=strongarm110) -Wa,-mcpu=xscale 91tune-$(CONFIG_CPU_FEROCEON) =$(call cc-option,-mtune=marvell-f,-mtune=xscale) 92tune-$(CONFIG_CPU_V6) =$(call cc-option,-mtune=arm1136j-s,-mtune=strongarm) 93tune-$(CONFIG_CPU_V6K) =$(call cc-option,-mtune=arm1136j-s,-mtune=strongarm) 94 95# Evaluate tune cc-option calls now 96tune-y := $(tune-y) 97 98ifeq ($(CONFIG_AEABI),y) 99CFLAGS_ABI :=-mabi=aapcs-linux -mno-thumb-interwork -mfpu=vfp 100else 101CFLAGS_ABI :=$(call cc-option,-mapcs-32,-mabi=apcs-gnu) $(call cc-option,-mno-thumb-interwork,) 102endif 103 104ifeq ($(CONFIG_ARM_UNWIND),y) 105CFLAGS_ABI +=-funwind-tables 106endif 107 108ifeq ($(CONFIG_THUMB2_KERNEL),y) 109AFLAGS_AUTOIT :=$(call as-option,-Wa$(comma)-mimplicit-it=always,-Wa$(comma)-mauto-it) 110AFLAGS_NOWARN :=$(call as-option,-Wa$(comma)-mno-warn-deprecated,-Wa$(comma)-W) 111CFLAGS_ISA :=-mthumb $(AFLAGS_AUTOIT) $(AFLAGS_NOWARN) 112AFLAGS_ISA :=$(CFLAGS_ISA) -Wa$(comma)-mthumb 113# Work around buggy relocation from gas if requested: 114ifeq ($(CONFIG_THUMB2_AVOID_R_ARM_THM_JUMP11),y) 115CFLAGS_MODULE +=-fno-optimize-sibling-calls 116endif 117else 118CFLAGS_ISA :=$(call cc-option,-marm,) 119AFLAGS_ISA :=$(CFLAGS_ISA) 120endif 121 122# Need -Uarm for gcc < 3.x 123KBUILD_CFLAGS +=$(CFLAGS_ABI) $(CFLAGS_ISA) $(arch-y) $(tune-y) $(call cc-option,-mshort-load-bytes,$(call cc-option,-malignment-traps,)) -msoft-float -Uarm 124KBUILD_AFLAGS +=$(CFLAGS_ABI) $(AFLAGS_ISA) $(arch-y) $(tune-y) -include asm/unified.h -msoft-float 125 126CHECKFLAGS += -D__arm__ 127 128#Default value 129head-y := arch/arm/kernel/head$(MMUEXT).o 130 131# Text offset. This list is sorted numerically by address in order to 132# provide a means to avoid/resolve conflicts in multi-arch kernels. 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-$(CONFIG_ARCH_MSM8960) := 0x00208000 144textofs-$(CONFIG_ARCH_AXXIA) := 0x00308000 145 146# Machine directory name. This list is sorted alphanumerically 147# by CONFIG_* macro name. 148machine-$(CONFIG_ARCH_AT91) += at91 149machine-$(CONFIG_ARCH_AXXIA) += axxia 150machine-$(CONFIG_ARCH_BCM) += bcm 151machine-$(CONFIG_ARCH_BERLIN) += berlin 152machine-$(CONFIG_ARCH_CLPS711X) += clps711x 153machine-$(CONFIG_ARCH_CNS3XXX) += cns3xxx 154machine-$(CONFIG_ARCH_DAVINCI) += davinci 155machine-$(CONFIG_ARCH_DOVE) += dove 156machine-$(CONFIG_ARCH_EBSA110) += ebsa110 157machine-$(CONFIG_ARCH_EFM32) += efm32 158machine-$(CONFIG_ARCH_EP93XX) += ep93xx 159machine-$(CONFIG_ARCH_EXYNOS) += exynos 160machine-$(CONFIG_ARCH_GEMINI) += gemini 161machine-$(CONFIG_ARCH_HIGHBANK) += highbank 162machine-$(CONFIG_ARCH_HISI) += hisi 163machine-$(CONFIG_ARCH_INTEGRATOR) += integrator 164machine-$(CONFIG_ARCH_IOP13XX) += iop13xx 165machine-$(CONFIG_ARCH_IOP32X) += iop32x 166machine-$(CONFIG_ARCH_IOP33X) += iop33x 167machine-$(CONFIG_ARCH_IXP4XX) += ixp4xx 168machine-$(CONFIG_ARCH_KEYSTONE) += keystone 169machine-$(CONFIG_ARCH_KS8695) += ks8695 170machine-$(CONFIG_ARCH_LPC32XX) += lpc32xx 171machine-$(CONFIG_ARCH_MMP) += mmp 172machine-$(CONFIG_ARCH_MOXART) += moxart 173machine-$(CONFIG_ARCH_MSM) += msm 174machine-$(CONFIG_ARCH_MV78XX0) += mv78xx0 175machine-$(CONFIG_ARCH_MVEBU) += mvebu 176machine-$(CONFIG_ARCH_MXC) += imx 177machine-$(CONFIG_ARCH_MEDIATEK) += mediatek 178machine-$(CONFIG_ARCH_MXS) += mxs 179machine-$(CONFIG_ARCH_NETX) += netx 180machine-$(CONFIG_ARCH_NOMADIK) += nomadik 181machine-$(CONFIG_ARCH_NSPIRE) += nspire 182machine-$(CONFIG_ARCH_OMAP1) += omap1 183machine-$(CONFIG_ARCH_OMAP2PLUS) += omap2 184machine-$(CONFIG_ARCH_ORION5X) += orion5x 185machine-$(CONFIG_ARCH_PICOXCELL) += picoxcell 186machine-$(CONFIG_ARCH_PXA) += pxa 187machine-$(CONFIG_ARCH_QCOM) += qcom 188machine-$(CONFIG_ARCH_REALVIEW) += realview 189machine-$(CONFIG_ARCH_ROCKCHIP) += rockchip 190machine-$(CONFIG_ARCH_RPC) += rpc 191machine-$(CONFIG_ARCH_S3C24XX) += s3c24xx 192machine-$(CONFIG_ARCH_S3C64XX) += s3c64xx 193machine-$(CONFIG_ARCH_S5PV210) += s5pv210 194machine-$(CONFIG_ARCH_SA1100) += sa1100 195machine-$(CONFIG_ARCH_SHMOBILE) += shmobile 196machine-$(CONFIG_ARCH_SIRF) += prima2 197machine-$(CONFIG_ARCH_SOCFPGA) += socfpga 198machine-$(CONFIG_ARCH_STI) += sti 199machine-$(CONFIG_ARCH_SUNXI) += sunxi 200machine-$(CONFIG_ARCH_TEGRA) += tegra 201machine-$(CONFIG_ARCH_U300) += u300 202machine-$(CONFIG_ARCH_U8500) += ux500 203machine-$(CONFIG_ARCH_VERSATILE) += versatile 204machine-$(CONFIG_ARCH_VEXPRESS) += vexpress 205machine-$(CONFIG_ARCH_VT8500) += vt8500 206machine-$(CONFIG_ARCH_W90X900) += w90x900 207machine-$(CONFIG_ARCH_ZYNQ) += zynq 208machine-$(CONFIG_FOOTBRIDGE) += footbridge 209machine-$(CONFIG_PLAT_SPEAR) += spear 210 211# Platform directory name. This list is sorted alphanumerically 212# by CONFIG_* macro name. 213plat-$(CONFIG_ARCH_EXYNOS) += samsung 214plat-$(CONFIG_ARCH_OMAP) += omap 215plat-$(CONFIG_ARCH_S3C64XX) += samsung 216plat-$(CONFIG_ARCH_S5PV210) += samsung 217plat-$(CONFIG_PLAT_IOP) += iop 218plat-$(CONFIG_PLAT_ORION) += orion 219plat-$(CONFIG_PLAT_PXA) += pxa 220plat-$(CONFIG_PLAT_S3C24XX) += samsung 221plat-$(CONFIG_PLAT_VERSATILE) += versatile 222 223ifeq ($(CONFIG_ARCH_EBSA110),y) 224# This is what happens if you forget the IOCS16 line. 225# PCMCIA cards stop working. 226CFLAGS_3c589_cs.o :=-DISA_SIXTEEN_BIT_PERIPHERAL 227export CFLAGS_3c589_cs.o 228endif 229 230# The byte offset of the kernel image in RAM from the start of RAM. 231TEXT_OFFSET := $(textofs-y) 232 233# The first directory contains additional information for the boot setup code 234ifneq ($(machine-y),) 235MACHINE := arch/arm/mach-$(word 1,$(machine-y))/ 236else 237MACHINE := 238endif 239ifeq ($(CONFIG_ARCH_MULTIPLATFORM),y) 240MACHINE := 241endif 242 243machdirs := $(patsubst %,arch/arm/mach-%/,$(machine-y)) 244platdirs := $(patsubst %,arch/arm/plat-%/,$(sort $(plat-y))) 245 246ifneq ($(CONFIG_ARCH_MULTIPLATFORM),y) 247ifeq ($(KBUILD_SRC),) 248KBUILD_CPPFLAGS += $(patsubst %,-I%include,$(machdirs) $(platdirs)) 249else 250KBUILD_CPPFLAGS += $(patsubst %,-I$(srctree)/%include,$(machdirs) $(platdirs)) 251endif 252endif 253 254export TEXT_OFFSET GZFLAGS MMUEXT 255 256# Do we have FASTFPE? 257FASTFPE :=arch/arm/fastfpe 258ifeq ($(FASTFPE),$(wildcard $(FASTFPE))) 259FASTFPE_OBJ :=$(FASTFPE)/ 260endif 261 262core-$(CONFIG_FPE_NWFPE) += arch/arm/nwfpe/ 263core-$(CONFIG_FPE_FASTFPE) += $(FASTFPE_OBJ) 264core-$(CONFIG_VFP) += arch/arm/vfp/ 265core-$(CONFIG_XEN) += arch/arm/xen/ 266core-$(CONFIG_KVM_ARM_HOST) += arch/arm/kvm/ 267 268# If we have a machine-specific directory, then include it in the build. 269core-y += arch/arm/kernel/ arch/arm/mm/ arch/arm/common/ 270core-y += arch/arm/net/ 271core-y += arch/arm/crypto/ 272core-y += arch/arm/firmware/ 273core-y += $(machdirs) $(platdirs) 274 275drivers-$(CONFIG_OPROFILE) += arch/arm/oprofile/ 276 277libs-y := arch/arm/lib/ $(libs-y) 278 279# Default target when executing plain make 280ifeq ($(CONFIG_XIP_KERNEL),y) 281KBUILD_IMAGE := xipImage 282else 283KBUILD_IMAGE := zImage 284endif 285 286# Build the DT binary blobs if we have OF configured 287ifeq ($(CONFIG_USE_OF),y) 288KBUILD_DTBS := dtbs 289endif 290 291all: $(KBUILD_IMAGE) $(KBUILD_DTBS) 292 293boot := arch/arm/boot 294 295archprepare: 296 $(Q)$(MAKE) $(build)=arch/arm/tools include/generated/mach-types.h 297 298# Convert bzImage to zImage 299bzImage: zImage 300 301BOOT_TARGETS = zImage Image xipImage bootpImage uImage 302INSTALL_TARGETS = zinstall uinstall install 303 304PHONY += bzImage $(BOOT_TARGETS) $(INSTALL_TARGETS) 305 306$(BOOT_TARGETS): vmlinux 307 $(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $(boot)/$@ 308 309$(INSTALL_TARGETS): 310 $(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $@ 311 312%.dtb: | scripts 313 $(Q)$(MAKE) $(build)=$(boot)/dts MACHINE=$(MACHINE) $(boot)/dts/$@ 314 315PHONY += dtbs dtbs_install 316dtbs dtbs_install: prepare scripts 317 $(Q)$(MAKE) $(build)=$(boot)/dts MACHINE=$(MACHINE) $@ 318 319# We use MRPROPER_FILES and CLEAN_FILES now 320archclean: 321 $(Q)$(MAKE) $(clean)=$(boot) 322 323# My testing targets (bypasses dependencies) 324bp:; $(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $(boot)/bootpImage 325i zi:; $(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $@ 326 327 328define archhelp 329 echo '* zImage - Compressed kernel image (arch/$(ARCH)/boot/zImage)' 330 echo ' Image - Uncompressed kernel image (arch/$(ARCH)/boot/Image)' 331 echo '* xipImage - XIP kernel image, if configured (arch/$(ARCH)/boot/xipImage)' 332 echo ' uImage - U-Boot wrapped zImage' 333 echo ' bootpImage - Combined zImage and initial RAM disk' 334 echo ' (supply initrd image via make variable INITRD=<path>)' 335 echo '* dtbs - Build device tree blobs for enabled boards' 336 echo ' dtbs_install - Install dtbs to $(INSTALL_DTBS_PATH)' 337 echo ' install - Install uncompressed kernel' 338 echo ' zinstall - Install compressed kernel' 339 echo ' uinstall - Install U-Boot wrapped compressed kernel' 340 echo ' Install using (your) ~/bin/$(INSTALLKERNEL) or' 341 echo ' (distribution) /sbin/$(INSTALLKERNEL) or' 342 echo ' install to $$(INSTALL_PATH) and run lilo' 343endef 344