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.eh_frame 27KBUILD_CFLAGS += $(call cc-option,-fno-dwarf2-cfi-asm) 28 29# Do not use arch/arm/defconfig - it's always outdated. 30# Select a platform tht is kept up-to-date 31KBUILD_DEFCONFIG := versatile_defconfig 32 33# defines filename extension depending memory management type.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 ($(CONFIG_CPU_BIG_ENDIAN),y) 44KBUILD_CPPFLAGS += -mbig-endian 45AS += -EB 46LD += -EB 47else 48KBUILD_CPPFLAGS += -mlittle-endian 49AS += -EL 50LD += -EL 51endif 52 53# This selects which instruction set is used. 54# Note that GCC does not numerically define an architecture version 55# macro, but instead defines a whole series of macros which makes 56# testing for a specific architecture or later rather impossible. 57arch-$(CONFIG_CPU_32v7M) =-D__LINUX_ARM_ARCH__=7 -march=armv7-m -Wa,-march=armv7-m 58arch-$(CONFIG_CPU_32v7) =-D__LINUX_ARM_ARCH__=7 $(call cc-option,-march=armv7-a,-march=armv5t -Wa$(comma)-march=armv7-a) 59arch-$(CONFIG_CPU_32v6) =-D__LINUX_ARM_ARCH__=6 $(call cc-option,-march=armv6,-march=armv5t -Wa$(comma)-march=armv6) 60# Only override the compiler option if ARMv6. The ARMv6K extensions are 61# always available in ARMv7 62ifeq ($(CONFIG_CPU_32v6),y) 63arch-$(CONFIG_CPU_32v6K) =-D__LINUX_ARM_ARCH__=6 $(call cc-option,-march=armv6k,-march=armv5t -Wa$(comma)-march=armv6k) 64endif 65arch-$(CONFIG_CPU_32v5) =-D__LINUX_ARM_ARCH__=5 $(call cc-option,-march=armv5te,-march=armv4t) 66arch-$(CONFIG_CPU_32v4T) =-D__LINUX_ARM_ARCH__=4 -march=armv4t 67arch-$(CONFIG_CPU_32v4) =-D__LINUX_ARM_ARCH__=4 -march=armv4 68arch-$(CONFIG_CPU_32v3) =-D__LINUX_ARM_ARCH__=3 -march=armv3 69 70# Evaluate arch cc-option calls now 71arch-y := $(arch-y) 72 73# This selects how we optimise for the processor. 74tune-$(CONFIG_CPU_ARM7TDMI) =-mtune=arm7tdmi 75tune-$(CONFIG_CPU_ARM720T) =-mtune=arm7tdmi 76tune-$(CONFIG_CPU_ARM740T) =-mtune=arm7tdmi 77tune-$(CONFIG_CPU_ARM9TDMI) =-mtune=arm9tdmi 78tune-$(CONFIG_CPU_ARM940T) =-mtune=arm9tdmi 79tune-$(CONFIG_CPU_ARM946E) =$(call cc-option,-mtune=arm9e,-mtune=arm9tdmi) 80tune-$(CONFIG_CPU_ARM920T) =-mtune=arm9tdmi 81tune-$(CONFIG_CPU_ARM922T) =-mtune=arm9tdmi 82tune-$(CONFIG_CPU_ARM925T) =-mtune=arm9tdmi 83tune-$(CONFIG_CPU_ARM926T) =-mtune=arm9tdmi 84tune-$(CONFIG_CPU_FA526) =-mtune=arm9tdmi 85tune-$(CONFIG_CPU_SA110) =-mtune=strongarm110 86tune-$(CONFIG_CPU_SA1100) =-mtune=strongarm1100 87tune-$(CONFIG_CPU_XSCALE) =$(call cc-option,-mtune=xscale,-mtune=strongarm110) -Wa,-mcpu=xscale 88tune-$(CONFIG_CPU_XSC3) =$(call cc-option,-mtune=xscale,-mtune=strongarm110) -Wa,-mcpu=xscale 89tune-$(CONFIG_CPU_FEROCEON) =$(call cc-option,-mtune=marvell-f,-mtune=xscale) 90tune-$(CONFIG_CPU_V6) =$(call cc-option,-mtune=arm1136j-s,-mtune=strongarm) 91tune-$(CONFIG_CPU_V6K) =$(call cc-option,-mtune=arm1136j-s,-mtune=strongarm) 92 93# Evaluate tune cc-option calls now 94tune-y := $(tune-y) 95 96ifeq ($(CONFIG_AEABI),y) 97CFLAGS_ABI :=-mabi=aapcs-linux -mno-thumb-interwork -mfpu=vfp 98else 99CFLAGS_ABI :=$(call cc-option,-mapcs-32,-mabi=apcs-gnu) $(call cc-option,-mno-thumb-interwork,) 100endif 101 102ifeq ($(CONFIG_ARM_UNWIND),y) 103CFLAGS_ABI +=-funwind-tables 104endif 105 106ifeq ($(CONFIG_THUMB2_KERNEL),y) 107AFLAGS_AUTOIT :=$(call as-option,-Wa$(comma)-mimplicit-it=always,-Wa$(comma)-mauto-it) 108AFLAGS_NOWARN :=$(call as-option,-Wa$(comma)-mno-warn-deprecated,-Wa$(comma)-W) 109CFLAGS_ISA :=-mthumb $(AFLAGS_AUTOIT) $(AFLAGS_NOWARN) 110AFLAGS_ISA :=$(CFLAGS_ISA) -Wa$(comma)-mthumb 111# Work around buggy relocation from gas if requested: 112ifeq ($(CONFIG_THUMB2_AVOID_R_ARM_THM_JUMP11),y) 113CFLAGS_MODULE +=-fno-optimize-sibling-calls 114endif 115else 116CFLAGS_ISA :=$(call cc-option,-marm,) 117AFLAGS_ISA :=$(CFLAGS_ISA) 118endif 119 120# Need -Uarm for gcc < 3.x 121KBUILD_CFLAGS +=$(CFLAGS_ABI) $(CFLAGS_ISA) $(arch-y) $(tune-y) $(call cc-option,-mshort-load-bytes,$(call cc-option,-malignment-traps,)) -msoft-float -Uarm 122KBUILD_AFLAGS +=$(CFLAGS_ABI) $(AFLAGS_ISA) $(arch-y) $(tune-y) -include asm/unified.h -msoft-float 123 124CHECKFLAGS += -D__arm__ 125 126#Default value 127head-y := arch/arm/kernel/head$(MMUEXT).o 128 129# Text offset. This list is sorted numerically by address in order to 130# provide a means to avoid/resolve conflicts in multi-arch kernels. 131textofs-y := 0x00008000 132textofs-$(CONFIG_ARCH_CLPS711X) := 0x00028000 133# We don't want the htc bootloader to corrupt kernel during resume 134textofs-$(CONFIG_PM_H1940) := 0x00108000 135# SA1111 DMA bug: we don't want the kernel to live in precious DMA-able memory 136ifeq ($(CONFIG_ARCH_SA1100),y) 137textofs-$(CONFIG_SA1111) := 0x00208000 138endif 139textofs-$(CONFIG_ARCH_MSM7X30) := 0x00208000 140textofs-$(CONFIG_ARCH_MSM8X60) := 0x00208000 141textofs-$(CONFIG_ARCH_MSM8960) := 0x00208000 142textofs-$(CONFIG_ARCH_AXXIA) := 0x00308000 143 144# Machine directory name. This list is sorted alphanumerically 145# by CONFIG_* macro name. 146machine-$(CONFIG_ARCH_AT91) += at91 147machine-$(CONFIG_ARCH_AXXIA) += axxia 148machine-$(CONFIG_ARCH_BCM) += bcm 149machine-$(CONFIG_ARCH_BERLIN) += berlin 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_EFM32) += efm32 156machine-$(CONFIG_ARCH_EP93XX) += ep93xx 157machine-$(CONFIG_ARCH_EXYNOS) += exynos 158machine-$(CONFIG_ARCH_FOOTBRIDGE) += footbridge 159machine-$(CONFIG_ARCH_GEMINI) += gemini 160machine-$(CONFIG_ARCH_HIGHBANK) += highbank 161machine-$(CONFIG_ARCH_HISI) += hisi 162machine-$(CONFIG_ARCH_INTEGRATOR) += integrator 163machine-$(CONFIG_ARCH_IOP13XX) += iop13xx 164machine-$(CONFIG_ARCH_IOP32X) += iop32x 165machine-$(CONFIG_ARCH_IOP33X) += iop33x 166machine-$(CONFIG_ARCH_IXP4XX) += ixp4xx 167machine-$(CONFIG_ARCH_KEYSTONE) += keystone 168machine-$(CONFIG_ARCH_KS8695) += ks8695 169machine-$(CONFIG_ARCH_LPC32XX) += lpc32xx 170machine-$(CONFIG_ARCH_MESON) += meson 171machine-$(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-$(CONFIG_PLAT_SPEAR) += spear 209 210# Platform directory name. This list is sorted alphanumerically 211# by CONFIG_* macro name. 212plat-$(CONFIG_ARCH_EXYNOS) += samsung 213plat-$(CONFIG_ARCH_OMAP) += omap 214plat-$(CONFIG_ARCH_S3C64XX) += samsung 215plat-$(CONFIG_ARCH_S5PV210) += samsung 216plat-$(CONFIG_PLAT_IOP) += iop 217plat-$(CONFIG_PLAT_ORION) += orion 218plat-$(CONFIG_PLAT_PXA) += pxa 219plat-$(CONFIG_PLAT_S3C24XX) += samsung 220plat-$(CONFIG_PLAT_VERSATILE) += versatile 221 222ifeq ($(CONFIG_ARCH_EBSA110),y) 223# This is what happens if you forget the IOCS16 line. 224# PCMCIA cards stop working. 225CFLAGS_3c589_cs.o :=-DISA_SIXTEEN_BIT_PERIPHERAL 226export CFLAGS_3c589_cs.o 227endif 228 229# The byte offset of the kernel image in RAM from the start of RAM. 230TEXT_OFFSET := $(textofs-y) 231 232# The first directory contains additional information for the boot setup code 233ifneq ($(machine-y),) 234MACHINE := arch/arm/mach-$(word 1,$(machine-y))/ 235else 236MACHINE := 237endif 238ifeq ($(CONFIG_ARCH_MULTIPLATFORM),y) 239MACHINE := 240endif 241 242machdirs := $(patsubst %,arch/arm/mach-%/,$(machine-y)) 243platdirs := $(patsubst %,arch/arm/plat-%/,$(sort $(plat-y))) 244 245ifneq ($(CONFIG_ARCH_MULTIPLATFORM),y) 246ifeq ($(KBUILD_SRC),) 247KBUILD_CPPFLAGS += $(patsubst %,-I%include,$(machdirs) $(platdirs)) 248else 249KBUILD_CPPFLAGS += $(patsubst %,-I$(srctree)/%include,$(machdirs) $(platdirs)) 250endif 251endif 252 253export TEXT_OFFSET GZFLAGS MMUEXT 254 255# Do we have FASTFPE? 256FASTFPE :=arch/arm/fastfpe 257ifeq ($(FASTFPE),$(wildcard $(FASTFPE))) 258FASTFPE_OBJ :=$(FASTFPE)/ 259endif 260 261core-$(CONFIG_FPE_NWFPE) += arch/arm/nwfpe/ 262core-$(CONFIG_FPE_FASTFPE) += $(FASTFPE_OBJ) 263core-$(CONFIG_VFP) += arch/arm/vfp/ 264core-$(CONFIG_XEN) += arch/arm/xen/ 265core-$(CONFIG_KVM_ARM_HOST) += arch/arm/kvm/ 266 267# If we have a machine-specific directory, then include it in the build. 268core-y += arch/arm/kernel/ arch/arm/mm/ arch/arm/common/ 269core-y += arch/arm/net/ 270core-y += arch/arm/crypto/ 271core-y += arch/arm/firmware/ 272core-y += $(machdirs) $(platdirs) 273 274drivers-$(CONFIG_OPROFILE) += arch/arm/oprofile/ 275 276libs-y := arch/arm/lib/ $(libs-y) 277 278# Default target when executing plain make 279ifeq ($(CONFIG_XIP_KERNEL),y) 280KBUILD_IMAGE := xipImage 281else 282KBUILD_IMAGE := zImage 283endif 284 285# Build the DT binary blobs if we have OF configured 286ifeq ($(CONFIG_USE_OF),y) 287KBUILD_DTBS := dtbs 288endif 289 290all: $(KBUILD_IMAGE) $(KBUILD_DTBS) 291 292boot := arch/arm/boot 293 294archprepare: 295 $(Q)$(MAKE) $(build)=arch/arm/tools include/generated/mach-types.h 296 297# Convert bzImage to zImage 298bzImage: zImage 299 300BOOT_TARGETS = zImage Image xipImage bootpImage uImage 301INSTALL_TARGETS = zinstall uinstall install 302 303PHONY += bzImage $(BOOT_TARGETS) $(INSTALL_TARGETS) 304 305$(BOOT_TARGETS): vmlinux 306 $(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $(boot)/$@ 307 308$(INSTALL_TARGETS): 309 $(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $@ 310 311%.dtb: | scripts 312 $(Q)$(MAKE) $(build)=$(boot)/dts MACHINE=$(MACHINE) $(boot)/dts/$@ 313 314PHONY += dtbs dtbs_install 315 316dtbs: prepare scripts 317 $(Q)$(MAKE) $(build)=$(boot)/dts 318 319dtbs_install: 320 $(Q)$(MAKE) $(dtbinst)=$(boot)/dts 321 322# We use MRPROPER_FILES and CLEAN_FILES now 323archclean: 324 $(Q)$(MAKE) $(clean)=$(boot) 325 326# My testing targets (bypasses dependencies) 327bp:; $(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $(boot)/bootpImage 328i zi:; $(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $@ 329 330 331define archhelp 332 echo '* zImage - Compressed kernel image (arch/$(ARCH)/boot/zImage)' 333 echo ' Image - Uncompressed kernel image (arch/$(ARCH)/boot/Image)' 334 echo '* xipImage - XIP kernel image, if configured (arch/$(ARCH)/boot/xipImage)' 335 echo ' uImage - U-Boot wrapped zImage' 336 echo ' bootpImage - Combined zImage and initial RAM disk' 337 echo ' (supply initrd image via make variable INITRD=<path>)' 338 echo '* dtbs - Build device tree blobs for enabled boards' 339 echo ' dtbs_install - Install dtbs to $(INSTALL_DTBS_PATH)' 340 echo ' install - Install uncompressed kernel' 341 echo ' zinstall - Install compressed kernel' 342 echo ' uinstall - Install U-Boot wrapped compressed kernel' 343 echo ' Install using (your) ~/bin/$(INSTALLKERNEL) or' 344 echo ' (distribution) /sbin/$(INSTALLKERNEL) or' 345 echo ' install to $$(INSTALL_PATH) and run lilo' 346endef 347