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 --pic-veneer 17ifeq ($(CONFIG_CPU_ENDIAN_BE8),y) 18LDFLAGS_vmlinux += --be8 19LDFLAGS_MODULE += --be8 20endif 21 22ifeq ($(CONFIG_ARM_MODULE_PLTS),y) 23LDFLAGS_MODULE += -T $(srctree)/arch/arm/kernel/module.lds 24endif 25 26OBJCOPYFLAGS :=-O binary -R .comment -S 27GZFLAGS :=-9 28#KBUILD_CFLAGS +=-pipe 29 30# Never generate .eh_frame 31KBUILD_CFLAGS += $(call cc-option,-fno-dwarf2-cfi-asm) 32 33# Do not use arch/arm/defconfig - it's always outdated. 34# Select a platform tht is kept up-to-date 35KBUILD_DEFCONFIG := versatile_defconfig 36 37# defines filename extension depending memory management type. 38ifeq ($(CONFIG_MMU),) 39MMUEXT := -nommu 40KBUILD_CFLAGS += $(call cc-option,-mno-unaligned-access) 41endif 42 43ifeq ($(CONFIG_FRAME_POINTER),y) 44KBUILD_CFLAGS +=-fno-omit-frame-pointer -mapcs -mno-sched-prolog 45endif 46 47ifeq ($(CONFIG_CPU_BIG_ENDIAN),y) 48KBUILD_CPPFLAGS += -mbig-endian 49AS += -EB 50LD += -EB 51else 52KBUILD_CPPFLAGS += -mlittle-endian 53AS += -EL 54LD += -EL 55endif 56 57# This selects which instruction set is used. 58# Note that GCC does not numerically define an architecture version 59# macro, but instead defines a whole series of macros which makes 60# testing for a specific architecture or later rather impossible. 61arch-$(CONFIG_CPU_32v7M) =-D__LINUX_ARM_ARCH__=7 -march=armv7-m -Wa,-march=armv7-m 62arch-$(CONFIG_CPU_32v7) =-D__LINUX_ARM_ARCH__=7 $(call cc-option,-march=armv7-a,-march=armv5t -Wa$(comma)-march=armv7-a) 63arch-$(CONFIG_CPU_32v6) =-D__LINUX_ARM_ARCH__=6 $(call cc-option,-march=armv6,-march=armv5t -Wa$(comma)-march=armv6) 64# Only override the compiler option if ARMv6. The ARMv6K extensions are 65# always available in ARMv7 66ifeq ($(CONFIG_CPU_32v6),y) 67arch-$(CONFIG_CPU_32v6K) =-D__LINUX_ARM_ARCH__=6 $(call cc-option,-march=armv6k,-march=armv5t -Wa$(comma)-march=armv6k) 68endif 69arch-$(CONFIG_CPU_32v5) =-D__LINUX_ARM_ARCH__=5 $(call cc-option,-march=armv5te,-march=armv4t) 70arch-$(CONFIG_CPU_32v4T) =-D__LINUX_ARM_ARCH__=4 -march=armv4t 71arch-$(CONFIG_CPU_32v4) =-D__LINUX_ARM_ARCH__=4 -march=armv4 72arch-$(CONFIG_CPU_32v3) =-D__LINUX_ARM_ARCH__=3 -march=armv3 73 74# Evaluate arch cc-option calls now 75arch-y := $(arch-y) 76 77# This selects how we optimise for the processor. 78tune-$(CONFIG_CPU_ARM7TDMI) =-mtune=arm7tdmi 79tune-$(CONFIG_CPU_ARM720T) =-mtune=arm7tdmi 80tune-$(CONFIG_CPU_ARM740T) =-mtune=arm7tdmi 81tune-$(CONFIG_CPU_ARM9TDMI) =-mtune=arm9tdmi 82tune-$(CONFIG_CPU_ARM940T) =-mtune=arm9tdmi 83tune-$(CONFIG_CPU_ARM946E) =$(call cc-option,-mtune=arm9e,-mtune=arm9tdmi) 84tune-$(CONFIG_CPU_ARM920T) =-mtune=arm9tdmi 85tune-$(CONFIG_CPU_ARM922T) =-mtune=arm9tdmi 86tune-$(CONFIG_CPU_ARM925T) =-mtune=arm9tdmi 87tune-$(CONFIG_CPU_ARM926T) =-mtune=arm9tdmi 88tune-$(CONFIG_CPU_FA526) =-mtune=arm9tdmi 89tune-$(CONFIG_CPU_SA110) =-mtune=strongarm110 90tune-$(CONFIG_CPU_SA1100) =-mtune=strongarm1100 91tune-$(CONFIG_CPU_XSCALE) =$(call cc-option,-mtune=xscale,-mtune=strongarm110) -Wa,-mcpu=xscale 92tune-$(CONFIG_CPU_XSC3) =$(call cc-option,-mtune=xscale,-mtune=strongarm110) -Wa,-mcpu=xscale 93tune-$(CONFIG_CPU_FEROCEON) =$(call cc-option,-mtune=marvell-f,-mtune=xscale) 94tune-$(CONFIG_CPU_V6) =$(call cc-option,-mtune=arm1136j-s,-mtune=strongarm) 95tune-$(CONFIG_CPU_V6K) =$(call cc-option,-mtune=arm1136j-s,-mtune=strongarm) 96 97# Evaluate tune cc-option calls now 98tune-y := $(tune-y) 99 100ifeq ($(CONFIG_AEABI),y) 101CFLAGS_ABI :=-mabi=aapcs-linux -mno-thumb-interwork -mfpu=vfp 102else 103CFLAGS_ABI :=$(call cc-option,-mapcs-32,-mabi=apcs-gnu) $(call cc-option,-mno-thumb-interwork,) 104endif 105 106ifeq ($(CONFIG_ARM_UNWIND),y) 107CFLAGS_ABI +=-funwind-tables 108endif 109 110ifeq ($(CONFIG_THUMB2_KERNEL),y) 111AFLAGS_AUTOIT :=$(call as-option,-Wa$(comma)-mimplicit-it=always,-Wa$(comma)-mauto-it) 112AFLAGS_NOWARN :=$(call as-option,-Wa$(comma)-mno-warn-deprecated,-Wa$(comma)-W) 113CFLAGS_ISA :=-mthumb $(AFLAGS_AUTOIT) $(AFLAGS_NOWARN) 114AFLAGS_ISA :=$(CFLAGS_ISA) -Wa$(comma)-mthumb 115# Work around buggy relocation from gas if requested: 116ifeq ($(CONFIG_THUMB2_AVOID_R_ARM_THM_JUMP11),y) 117CFLAGS_MODULE +=-fno-optimize-sibling-calls 118endif 119else 120CFLAGS_ISA :=$(call cc-option,-marm,) 121AFLAGS_ISA :=$(CFLAGS_ISA) 122endif 123 124# Need -Uarm for gcc < 3.x 125KBUILD_CFLAGS +=$(CFLAGS_ABI) $(CFLAGS_ISA) $(arch-y) $(tune-y) $(call cc-option,-mshort-load-bytes,$(call cc-option,-malignment-traps,)) -msoft-float -Uarm 126KBUILD_AFLAGS +=$(CFLAGS_ABI) $(AFLAGS_ISA) $(arch-y) $(tune-y) -include asm/unified.h -msoft-float 127 128CHECKFLAGS += -D__arm__ 129 130#Default value 131head-y := arch/arm/kernel/head$(MMUEXT).o 132 133# Text offset. This list is sorted numerically by address in order to 134# provide a means to avoid/resolve conflicts in multi-arch kernels. 135textofs-y := 0x00008000 136textofs-$(CONFIG_ARCH_CLPS711X) := 0x00028000 137# We don't want the htc bootloader to corrupt kernel during resume 138textofs-$(CONFIG_PM_H1940) := 0x00108000 139# SA1111 DMA bug: we don't want the kernel to live in precious DMA-able memory 140ifeq ($(CONFIG_ARCH_SA1100),y) 141textofs-$(CONFIG_SA1111) := 0x00208000 142endif 143textofs-$(CONFIG_ARCH_MSM8X60) := 0x00208000 144textofs-$(CONFIG_ARCH_MSM8960) := 0x00208000 145textofs-$(CONFIG_ARCH_AXXIA) := 0x00308000 146 147# Machine directory name. This list is sorted alphanumerically 148# by CONFIG_* macro name. 149machine-$(CONFIG_ARCH_ALPINE) += alpine 150machine-$(CONFIG_ARCH_AT91) += at91 151machine-$(CONFIG_ARCH_AXXIA) += axxia 152machine-$(CONFIG_ARCH_BCM) += bcm 153machine-$(CONFIG_ARCH_BERLIN) += berlin 154machine-$(CONFIG_ARCH_CLPS711X) += clps711x 155machine-$(CONFIG_ARCH_CNS3XXX) += cns3xxx 156machine-$(CONFIG_ARCH_DAVINCI) += davinci 157machine-$(CONFIG_ARCH_DIGICOLOR) += digicolor 158machine-$(CONFIG_ARCH_DOVE) += dove 159machine-$(CONFIG_ARCH_EBSA110) += ebsa110 160machine-$(CONFIG_ARCH_EFM32) += efm32 161machine-$(CONFIG_ARCH_EP93XX) += ep93xx 162machine-$(CONFIG_ARCH_EXYNOS) += exynos 163machine-$(CONFIG_ARCH_FOOTBRIDGE) += footbridge 164machine-$(CONFIG_ARCH_GEMINI) += gemini 165machine-$(CONFIG_ARCH_HIGHBANK) += highbank 166machine-$(CONFIG_ARCH_HISI) += hisi 167machine-$(CONFIG_ARCH_INTEGRATOR) += integrator 168machine-$(CONFIG_ARCH_IOP13XX) += iop13xx 169machine-$(CONFIG_ARCH_IOP32X) += iop32x 170machine-$(CONFIG_ARCH_IOP33X) += iop33x 171machine-$(CONFIG_ARCH_IXP4XX) += ixp4xx 172machine-$(CONFIG_ARCH_KEYSTONE) += keystone 173machine-$(CONFIG_ARCH_KS8695) += ks8695 174machine-$(CONFIG_ARCH_LPC18XX) += lpc18xx 175machine-$(CONFIG_ARCH_LPC32XX) += lpc32xx 176machine-$(CONFIG_ARCH_MESON) += meson 177machine-$(CONFIG_ARCH_MMP) += mmp 178machine-$(CONFIG_ARCH_MOXART) += moxart 179machine-$(CONFIG_ARCH_MV78XX0) += mv78xx0 180machine-$(CONFIG_ARCH_MVEBU) += mvebu 181machine-$(CONFIG_ARCH_MXC) += imx 182machine-$(CONFIG_ARCH_MEDIATEK) += mediatek 183machine-$(CONFIG_ARCH_MXS) += mxs 184machine-$(CONFIG_ARCH_NETX) += netx 185machine-$(CONFIG_ARCH_NOMADIK) += nomadik 186machine-$(CONFIG_ARCH_NSPIRE) += nspire 187machine-$(CONFIG_ARCH_OMAP1) += omap1 188machine-$(CONFIG_ARCH_OMAP2PLUS) += omap2 189machine-$(CONFIG_ARCH_ORION5X) += orion5x 190machine-$(CONFIG_ARCH_PICOXCELL) += picoxcell 191machine-$(CONFIG_ARCH_PXA) += pxa 192machine-$(CONFIG_ARCH_QCOM) += qcom 193machine-$(CONFIG_ARCH_REALVIEW) += realview 194machine-$(CONFIG_ARCH_ROCKCHIP) += rockchip 195machine-$(CONFIG_ARCH_RPC) += rpc 196machine-$(CONFIG_ARCH_S3C24XX) += s3c24xx 197machine-$(CONFIG_ARCH_S3C64XX) += s3c64xx 198machine-$(CONFIG_ARCH_S5PV210) += s5pv210 199machine-$(CONFIG_ARCH_SA1100) += sa1100 200machine-$(CONFIG_ARCH_SHMOBILE) += shmobile 201machine-$(CONFIG_ARCH_SIRF) += prima2 202machine-$(CONFIG_ARCH_SOCFPGA) += socfpga 203machine-$(CONFIG_ARCH_STI) += sti 204machine-$(CONFIG_ARCH_STM32) += stm32 205machine-$(CONFIG_ARCH_SUNXI) += sunxi 206machine-$(CONFIG_ARCH_TEGRA) += tegra 207machine-$(CONFIG_ARCH_U300) += u300 208machine-$(CONFIG_ARCH_U8500) += ux500 209machine-$(CONFIG_ARCH_UNIPHIER) += uniphier 210machine-$(CONFIG_ARCH_VERSATILE) += versatile 211machine-$(CONFIG_ARCH_VEXPRESS) += vexpress 212machine-$(CONFIG_ARCH_VT8500) += vt8500 213machine-$(CONFIG_ARCH_W90X900) += w90x900 214machine-$(CONFIG_ARCH_ZX) += zx 215machine-$(CONFIG_ARCH_ZYNQ) += zynq 216machine-$(CONFIG_PLAT_SPEAR) += spear 217 218# Platform directory name. This list is sorted alphanumerically 219# by CONFIG_* macro name. 220plat-$(CONFIG_ARCH_EXYNOS) += samsung 221plat-$(CONFIG_ARCH_OMAP) += omap 222plat-$(CONFIG_ARCH_S3C64XX) += samsung 223plat-$(CONFIG_ARCH_S5PV210) += samsung 224plat-$(CONFIG_PLAT_IOP) += iop 225plat-$(CONFIG_PLAT_ORION) += orion 226plat-$(CONFIG_PLAT_PXA) += pxa 227plat-$(CONFIG_PLAT_S3C24XX) += samsung 228plat-$(CONFIG_PLAT_VERSATILE) += versatile 229 230ifeq ($(CONFIG_ARCH_EBSA110),y) 231# This is what happens if you forget the IOCS16 line. 232# PCMCIA cards stop working. 233CFLAGS_3c589_cs.o :=-DISA_SIXTEEN_BIT_PERIPHERAL 234export CFLAGS_3c589_cs.o 235endif 236 237# The byte offset of the kernel image in RAM from the start of RAM. 238TEXT_OFFSET := $(textofs-y) 239 240# The first directory contains additional information for the boot setup code 241ifneq ($(machine-y),) 242MACHINE := arch/arm/mach-$(word 1,$(machine-y))/ 243else 244MACHINE := 245endif 246ifeq ($(CONFIG_ARCH_MULTIPLATFORM),y) 247MACHINE := 248endif 249 250machdirs := $(patsubst %,arch/arm/mach-%/,$(machine-y)) 251platdirs := $(patsubst %,arch/arm/plat-%/,$(sort $(plat-y))) 252 253ifneq ($(CONFIG_ARCH_MULTIPLATFORM),y) 254ifeq ($(KBUILD_SRC),) 255KBUILD_CPPFLAGS += $(patsubst %,-I%include,$(machdirs) $(platdirs)) 256else 257KBUILD_CPPFLAGS += $(patsubst %,-I$(srctree)/%include,$(machdirs) $(platdirs)) 258endif 259endif 260 261export TEXT_OFFSET GZFLAGS MMUEXT 262 263# Do we have FASTFPE? 264FASTFPE :=arch/arm/fastfpe 265ifeq ($(FASTFPE),$(wildcard $(FASTFPE))) 266FASTFPE_OBJ :=$(FASTFPE)/ 267endif 268 269core-$(CONFIG_FPE_NWFPE) += arch/arm/nwfpe/ 270core-$(CONFIG_FPE_FASTFPE) += $(FASTFPE_OBJ) 271core-$(CONFIG_VFP) += arch/arm/vfp/ 272core-$(CONFIG_XEN) += arch/arm/xen/ 273core-$(CONFIG_KVM_ARM_HOST) += arch/arm/kvm/ 274core-$(CONFIG_VDSO) += arch/arm/vdso/ 275 276# If we have a machine-specific directory, then include it in the build. 277core-y += arch/arm/kernel/ arch/arm/mm/ arch/arm/common/ 278core-y += arch/arm/probes/ 279core-y += arch/arm/net/ 280core-y += arch/arm/crypto/ 281core-y += arch/arm/firmware/ 282core-y += $(machdirs) $(platdirs) 283 284drivers-$(CONFIG_OPROFILE) += arch/arm/oprofile/ 285 286libs-y := arch/arm/lib/ $(libs-y) 287 288# Default target when executing plain make 289ifeq ($(CONFIG_XIP_KERNEL),y) 290KBUILD_IMAGE := xipImage 291else 292KBUILD_IMAGE := zImage 293endif 294 295# Build the DT binary blobs if we have OF configured 296ifeq ($(CONFIG_USE_OF),y) 297KBUILD_DTBS := dtbs 298endif 299 300all: $(KBUILD_IMAGE) $(KBUILD_DTBS) 301 302boot := arch/arm/boot 303 304archprepare: 305 $(Q)$(MAKE) $(build)=arch/arm/tools include/generated/mach-types.h 306 307# Convert bzImage to zImage 308bzImage: zImage 309 310BOOT_TARGETS = zImage Image xipImage bootpImage uImage 311INSTALL_TARGETS = zinstall uinstall install 312 313PHONY += bzImage $(BOOT_TARGETS) $(INSTALL_TARGETS) 314 315$(BOOT_TARGETS): vmlinux 316 $(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $(boot)/$@ 317 318$(INSTALL_TARGETS): 319 $(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $@ 320 321%.dtb: | scripts 322 $(Q)$(MAKE) $(build)=$(boot)/dts MACHINE=$(MACHINE) $(boot)/dts/$@ 323 324PHONY += dtbs dtbs_install 325 326dtbs: prepare scripts 327 $(Q)$(MAKE) $(build)=$(boot)/dts 328 329dtbs_install: 330 $(Q)$(MAKE) $(dtbinst)=$(boot)/dts 331 332PHONY += vdso_install 333vdso_install: 334ifeq ($(CONFIG_VDSO),y) 335 $(Q)$(MAKE) $(build)=arch/arm/vdso $@ 336endif 337 338# We use MRPROPER_FILES and CLEAN_FILES now 339archclean: 340 $(Q)$(MAKE) $(clean)=$(boot) 341 342# My testing targets (bypasses dependencies) 343bp:; $(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $(boot)/bootpImage 344i zi:; $(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $@ 345 346 347define archhelp 348 echo '* zImage - Compressed kernel image (arch/$(ARCH)/boot/zImage)' 349 echo ' Image - Uncompressed kernel image (arch/$(ARCH)/boot/Image)' 350 echo '* xipImage - XIP kernel image, if configured (arch/$(ARCH)/boot/xipImage)' 351 echo ' uImage - U-Boot wrapped zImage' 352 echo ' bootpImage - Combined zImage and initial RAM disk' 353 echo ' (supply initrd image via make variable INITRD=<path>)' 354 echo '* dtbs - Build device tree blobs for enabled boards' 355 echo ' dtbs_install - Install dtbs to $(INSTALL_DTBS_PATH)' 356 echo ' install - Install uncompressed kernel' 357 echo ' zinstall - Install compressed kernel' 358 echo ' uinstall - Install U-Boot wrapped compressed kernel' 359 echo ' Install using (your) ~/bin/$(INSTALLKERNEL) or' 360 echo ' (distribution) /sbin/$(INSTALLKERNEL) or' 361 echo ' install to $$(INSTALL_PATH) and run lilo' 362 echo ' vdso_install - Install unstripped vdso.so to $$(INSTALL_MOD_PATH)/vdso' 363endef 364