linux/arch/arm/Makefile
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   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  28# Do not use arch/arm/defconfig - it's always outdated.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
  35endif
  36
  37ifeq ($(CONFIG_FRAME_POINTER),y)
  38KBUILD_CFLAGS   +=-fno-omit-frame-pointer -mapcs -mno-sched-prolog
  39endif
  40
  41ifeq ($(CONFIG_CC_STACKPROTECTOR),y)
  42KBUILD_CFLAGS   +=-fstack-protector
  43endif
  44
  45ifeq ($(CONFIG_CPU_BIG_ENDIAN),y)
  46KBUILD_CPPFLAGS += -mbig-endian
  47AS              += -EB
  48LD              += -EB
  49else
  50KBUILD_CPPFLAGS += -mlittle-endian
  51AS              += -EL
  52LD              += -EL
  53endif
  54
  55comma = ,
  56
  57# This selects which instruction set is used.
  58# Note that GCC does not numerically define an architecture version
  59# macro, but instead defines a whole series of macros which makes
  60# testing for a specific architecture or later rather impossible.
  61arch-$(CONFIG_CPU_32v7)         :=-D__LINUX_ARM_ARCH__=7 $(call cc-option,-march=armv7-a,-march=armv5t -Wa$(comma)-march=armv7-a)
  62arch-$(CONFIG_CPU_32v6)         :=-D__LINUX_ARM_ARCH__=6 $(call cc-option,-march=armv6,-march=armv5t -Wa$(comma)-march=armv6)
  63# Only override the compiler option if ARMv6. The ARMv6K extensions are
  64# always available in ARMv7
  65ifeq ($(CONFIG_CPU_32v6),y)
  66arch-$(CONFIG_CPU_32v6K)        :=-D__LINUX_ARM_ARCH__=6 $(call cc-option,-march=armv6k,-march=armv5t -Wa$(comma)-march=armv6k)
  67endif
  68arch-$(CONFIG_CPU_32v5)         :=-D__LINUX_ARM_ARCH__=5 $(call cc-option,-march=armv5te,-march=armv4t)
  69arch-$(CONFIG_CPU_32v4T)        :=-D__LINUX_ARM_ARCH__=4 -march=armv4t
  70arch-$(CONFIG_CPU_32v4)         :=-D__LINUX_ARM_ARCH__=4 -march=armv4
  71arch-$(CONFIG_CPU_32v3)         :=-D__LINUX_ARM_ARCH__=3 -march=armv3
  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
  93ifeq ($(CONFIG_AEABI),y)
  94CFLAGS_ABI      :=-mabi=aapcs-linux -mno-thumb-interwork
  95else
  96CFLAGS_ABI      :=$(call cc-option,-mapcs-32,-mabi=apcs-gnu) $(call cc-option,-mno-thumb-interwork,)
  97endif
  98
  99ifeq ($(CONFIG_ARM_UNWIND),y)
 100CFLAGS_ABI      +=-funwind-tables
 101endif
 102
 103ifeq ($(CONFIG_THUMB2_KERNEL),y)
 104AFLAGS_AUTOIT   :=$(call as-option,-Wa$(comma)-mimplicit-it=always,-Wa$(comma)-mauto-it)
 105AFLAGS_NOWARN   :=$(call as-option,-Wa$(comma)-mno-warn-deprecated,-Wa$(comma)-W)
 106CFLAGS_ISA      :=-mthumb $(AFLAGS_AUTOIT) $(AFLAGS_NOWARN)
 107AFLAGS_ISA      :=$(CFLAGS_ISA) -Wa$(comma)-mthumb
 108# Work around buggy relocation from gas if requested:
 109ifeq ($(CONFIG_THUMB2_AVOID_R_ARM_THM_JUMP11),y)
 110CFLAGS_MODULE   +=-fno-optimize-sibling-calls
 111endif
 112else
 113CFLAGS_ISA      :=$(call cc-option,-marm,)
 114AFLAGS_ISA      :=$(CFLAGS_ISA)
 115endif
 116
 117# Need -Uarm for gcc < 3.x
 118KBUILD_CFLAGS   +=$(CFLAGS_ABI) $(CFLAGS_ISA) $(arch-y) $(tune-y) $(call cc-option,-mshort-load-bytes,$(call cc-option,-malignment-traps,)) -msoft-float -Uarm
 119KBUILD_AFLAGS   +=$(CFLAGS_ABI) $(AFLAGS_ISA) $(arch-y) $(tune-y) -include asm/unified.h -msoft-float
 120
 121CHECKFLAGS      += -D__arm__
 122
 123#Default value
 124head-y          := arch/arm/kernel/head$(MMUEXT).o
 125textofs-y       := 0x00008000
 126textofs-$(CONFIG_ARCH_CLPS711X) := 0x00028000
 127# We don't want the htc bootloader to corrupt kernel during resume
 128textofs-$(CONFIG_PM_H1940)      := 0x00108000
 129# SA1111 DMA bug: we don't want the kernel to live in precious DMA-able memory
 130ifeq ($(CONFIG_ARCH_SA1100),y)
 131textofs-$(CONFIG_SA1111) := 0x00208000
 132endif
 133textofs-$(CONFIG_ARCH_MSM7X30) := 0x00208000
 134textofs-$(CONFIG_ARCH_MSM8X60) := 0x00208000
 135textofs-$(CONFIG_ARCH_MSM8960) := 0x00208000
 136
 137# Machine directory name.  This list is sorted alphanumerically
 138# by CONFIG_* macro name.
 139machine-$(CONFIG_ARCH_AT91)             += at91
 140machine-$(CONFIG_ARCH_BCM2835)          += bcm2835
 141machine-$(CONFIG_ARCH_CLPS711X)         += clps711x
 142machine-$(CONFIG_ARCH_CNS3XXX)          += cns3xxx
 143machine-$(CONFIG_ARCH_DAVINCI)          += davinci
 144machine-$(CONFIG_ARCH_DOVE)             += dove
 145machine-$(CONFIG_ARCH_EBSA110)          += ebsa110
 146machine-$(CONFIG_ARCH_EP93XX)           += ep93xx
 147machine-$(CONFIG_ARCH_GEMINI)           += gemini
 148machine-$(CONFIG_ARCH_H720X)            += h720x
 149machine-$(CONFIG_ARCH_HIGHBANK)         += highbank
 150machine-$(CONFIG_ARCH_INTEGRATOR)       += integrator
 151machine-$(CONFIG_ARCH_IOP13XX)          += iop13xx
 152machine-$(CONFIG_ARCH_IOP32X)           += iop32x
 153machine-$(CONFIG_ARCH_IOP33X)           += iop33x
 154machine-$(CONFIG_ARCH_IXP4XX)           += ixp4xx
 155machine-$(CONFIG_ARCH_KIRKWOOD)         += kirkwood
 156machine-$(CONFIG_ARCH_KS8695)           += ks8695
 157machine-$(CONFIG_ARCH_LPC32XX)          += lpc32xx
 158machine-$(CONFIG_ARCH_MMP)              += mmp
 159machine-$(CONFIG_ARCH_MSM)              += msm
 160machine-$(CONFIG_ARCH_MV78XX0)          += mv78xx0
 161machine-$(CONFIG_ARCH_MXC)              += imx
 162machine-$(CONFIG_ARCH_MXS)              += mxs
 163machine-$(CONFIG_ARCH_MVEBU)            += mvebu
 164machine-$(CONFIG_ARCH_NETX)             += netx
 165machine-$(CONFIG_ARCH_NOMADIK)          += nomadik
 166machine-$(CONFIG_ARCH_OMAP1)            += omap1
 167machine-$(CONFIG_ARCH_OMAP2PLUS)        += omap2
 168machine-$(CONFIG_ARCH_ORION5X)          += orion5x
 169machine-$(CONFIG_ARCH_PICOXCELL)        += picoxcell
 170machine-$(CONFIG_ARCH_PRIMA2)           += prima2
 171machine-$(CONFIG_ARCH_PXA)              += pxa
 172machine-$(CONFIG_ARCH_REALVIEW)         += realview
 173machine-$(CONFIG_ARCH_RPC)              += rpc
 174machine-$(CONFIG_ARCH_S3C24XX)          += s3c24xx s3c2412 s3c2440
 175machine-$(CONFIG_ARCH_S3C64XX)          += s3c64xx
 176machine-$(CONFIG_ARCH_S5P64X0)          += s5p64x0
 177machine-$(CONFIG_ARCH_S5PC100)          += s5pc100
 178machine-$(CONFIG_ARCH_S5PV210)          += s5pv210
 179machine-$(CONFIG_ARCH_EXYNOS)           += exynos
 180machine-$(CONFIG_ARCH_SA1100)           += sa1100
 181machine-$(CONFIG_ARCH_SHARK)            += shark
 182machine-$(CONFIG_ARCH_SHMOBILE)         += shmobile
 183machine-$(CONFIG_ARCH_TEGRA)            += tegra
 184machine-$(CONFIG_ARCH_U300)             += u300
 185machine-$(CONFIG_ARCH_U8500)            += ux500
 186machine-$(CONFIG_ARCH_VERSATILE)        += versatile
 187machine-$(CONFIG_ARCH_VEXPRESS)         += vexpress
 188machine-$(CONFIG_ARCH_VT8500)           += vt8500
 189machine-$(CONFIG_ARCH_W90X900)          += w90x900
 190machine-$(CONFIG_FOOTBRIDGE)            += footbridge
 191machine-$(CONFIG_ARCH_SOCFPGA)          += socfpga
 192machine-$(CONFIG_ARCH_SPEAR13XX)        += spear13xx
 193machine-$(CONFIG_ARCH_SPEAR3XX)         += spear3xx
 194machine-$(CONFIG_MACH_SPEAR600)         += spear6xx
 195machine-$(CONFIG_ARCH_ZYNQ)             += zynq
 196
 197# Platform directory name.  This list is sorted alphanumerically
 198# by CONFIG_* macro name.
 199plat-$(CONFIG_ARCH_MXC)         += mxc
 200plat-$(CONFIG_ARCH_OMAP)        += omap
 201plat-$(CONFIG_ARCH_S3C64XX)     += samsung
 202plat-$(CONFIG_ARCH_ZYNQ)        += versatile
 203plat-$(CONFIG_PLAT_IOP)         += iop
 204plat-$(CONFIG_PLAT_NOMADIK)     += nomadik
 205plat-$(CONFIG_PLAT_ORION)       += orion
 206plat-$(CONFIG_PLAT_PXA)         += pxa
 207plat-$(CONFIG_PLAT_S3C24XX)     += s3c24xx samsung
 208plat-$(CONFIG_PLAT_S5P)         += samsung
 209plat-$(CONFIG_PLAT_SPEAR)       += spear
 210plat-$(CONFIG_PLAT_VERSATILE)   += versatile
 211
 212ifeq ($(CONFIG_ARCH_EBSA110),y)
 213# This is what happens if you forget the IOCS16 line.
 214# PCMCIA cards stop working.
 215CFLAGS_3c589_cs.o :=-DISA_SIXTEEN_BIT_PERIPHERAL
 216export CFLAGS_3c589_cs.o
 217endif
 218
 219# The byte offset of the kernel image in RAM from the start of RAM.
 220TEXT_OFFSET := $(textofs-y)
 221
 222# The first directory contains additional information for the boot setup code
 223ifneq ($(machine-y),)
 224MACHINE  := arch/arm/mach-$(word 1,$(machine-y))/
 225else
 226MACHINE  :=
 227endif
 228ifeq ($(CONFIG_ARCH_MULTIPLATFORM),y)
 229MACHINE  :=
 230endif
 231
 232machdirs := $(patsubst %,arch/arm/mach-%/,$(machine-y))
 233platdirs := $(patsubst %,arch/arm/plat-%/,$(plat-y))
 234
 235ifneq ($(CONFIG_ARCH_MULTIPLATFORM),y)
 236ifeq ($(KBUILD_SRC),)
 237KBUILD_CPPFLAGS += $(patsubst %,-I%include,$(machdirs) $(platdirs))
 238else
 239KBUILD_CPPFLAGS += $(patsubst %,-I$(srctree)/%include,$(machdirs) $(platdirs))
 240endif
 241endif
 242
 243export  TEXT_OFFSET GZFLAGS MMUEXT
 244
 245# Do we have FASTFPE?
 246FASTFPE         :=arch/arm/fastfpe
 247ifeq ($(FASTFPE),$(wildcard $(FASTFPE)))
 248FASTFPE_OBJ     :=$(FASTFPE)/
 249endif
 250
 251core-$(CONFIG_FPE_NWFPE)        += arch/arm/nwfpe/
 252core-$(CONFIG_FPE_FASTFPE)      += $(FASTFPE_OBJ)
 253core-$(CONFIG_VFP)              += arch/arm/vfp/
 254core-$(CONFIG_XEN)              += arch/arm/xen/
 255
 256# If we have a machine-specific directory, then include it in the build.
 257core-y                          += arch/arm/kernel/ arch/arm/mm/ arch/arm/common/
 258core-y                          += arch/arm/net/
 259core-y                          += arch/arm/crypto/
 260core-y                          += $(machdirs) $(platdirs)
 261
 262drivers-$(CONFIG_OPROFILE)      += arch/arm/oprofile/
 263
 264libs-y                          := arch/arm/lib/ $(libs-y)
 265
 266# Default target when executing plain make
 267ifeq ($(CONFIG_XIP_KERNEL),y)
 268KBUILD_IMAGE := xipImage
 269else
 270KBUILD_IMAGE := zImage
 271endif
 272
 273# Build the DT binary blobs if we have OF configured
 274ifeq ($(CONFIG_USE_OF),y)
 275KBUILD_DTBS := dtbs
 276endif
 277
 278all:    $(KBUILD_IMAGE) $(KBUILD_DTBS)
 279
 280boot := arch/arm/boot
 281
 282archprepare:
 283        $(Q)$(MAKE) $(build)=arch/arm/tools include/generated/mach-types.h
 284
 285# Convert bzImage to zImage
 286bzImage: zImage
 287
 288zImage Image xipImage bootpImage uImage: vmlinux
 289        $(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $(boot)/$@
 290
 291zinstall uinstall install: vmlinux
 292        $(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $@
 293
 294%.dtb: scripts
 295        $(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $(boot)/$@
 296
 297dtbs: scripts
 298        $(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $(boot)/$@
 299
 300# We use MRPROPER_FILES and CLEAN_FILES now
 301archclean:
 302        $(Q)$(MAKE) $(clean)=$(boot)
 303
 304# My testing targets (bypasses dependencies)
 305bp:;    $(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $(boot)/bootpImage
 306i zi:;  $(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $@
 307
 308
 309define archhelp
 310  echo  '* zImage        - Compressed kernel image (arch/$(ARCH)/boot/zImage)'
 311  echo  '  Image         - Uncompressed kernel image (arch/$(ARCH)/boot/Image)'
 312  echo  '* xipImage      - XIP kernel image, if configured (arch/$(ARCH)/boot/xipImage)'
 313  echo  '  uImage        - U-Boot wrapped zImage'
 314  echo  '  bootpImage    - Combined zImage and initial RAM disk' 
 315  echo  '                  (supply initrd image via make variable INITRD=<path>)'
 316  echo  '* dtbs          - Build device tree blobs for enabled boards'
 317  echo  '  install       - Install uncompressed kernel'
 318  echo  '  zinstall      - Install compressed kernel'
 319  echo  '  uinstall      - Install U-Boot wrapped compressed kernel'
 320  echo  '                  Install using (your) ~/bin/$(INSTALLKERNEL) or'
 321  echo  '                  (distribution) /sbin/$(INSTALLKERNEL) or'
 322  echo  '                  install to $$(INSTALL_PATH) and run lilo'
 323endef
 324
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