linux/arch/arm/Makefile
<<
>>
Prefs
   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 ($(CONFIG_CPU_ENDIAN_BE8),y)
  18LDFLAGS_vmlinux += --be8
  19endif
  20
  21OBJCOPYFLAGS    :=-O binary -R .comment -S
  22GZFLAGS         :=-9
  23#KBUILD_CFLAGS  +=-pipe
  24# Explicitly specifiy 32-bit ARM ISA since toolchain default can be -mthumb:
  25KBUILD_CFLAGS   +=$(call cc-option,-marm,)
  26
  27# Never generate .eh_frame
  28KBUILD_CFLAGS   += $(call cc-option,-fno-dwarf2-cfi-asm)
  29
  30# Do not use arch/arm/defconfig - it's always outdated.
  31# Select a platform tht is kept up-to-date
  32KBUILD_DEFCONFIG := versatile_defconfig
  33
  34# defines filename extension depending memory management type.
  35ifeq ($(CONFIG_MMU),)
  36MMUEXT          := -nommu
  37endif
  38
  39ifeq ($(CONFIG_FRAME_POINTER),y)
  40KBUILD_CFLAGS   +=-fno-omit-frame-pointer -mapcs -mno-sched-prolog
  41endif
  42
  43ifeq ($(CONFIG_CC_STACKPROTECTOR),y)
  44KBUILD_CFLAGS   +=-fstack-protector
  45endif
  46
  47ifeq ($(CONFIG_CPU_BIG_ENDIAN),y)
  48KBUILD_CPPFLAGS += -mbig-endian
  49AS              += -EB
  50LD              += -EB
  51else
  52KBUILD_CPPFLAGS += -mlittle-endian
  53AS              += -EL
  54LD              += -EL
  55endif
  56
  57comma = ,
  58
  59# This selects which instruction set is used.
  60# Note that GCC does not numerically define an architecture version
  61# macro, but instead defines a whole series of macros which makes
  62# testing for a specific architecture or later rather impossible.
  63arch-$(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# 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
  95ifeq ($(CONFIG_AEABI),y)
  96CFLAGS_ABI      :=-mabi=aapcs-linux -mno-thumb-interwork
  97else
  98CFLAGS_ABI      :=$(call cc-option,-mapcs-32,-mabi=apcs-gnu) $(call cc-option,-mno-thumb-interwork,)
  99endif
 100
 101ifeq ($(CONFIG_ARM_UNWIND),y)
 102CFLAGS_ABI      +=-funwind-tables
 103endif
 104
 105ifeq ($(CONFIG_THUMB2_KERNEL),y)
 106AFLAGS_AUTOIT   :=$(call as-option,-Wa$(comma)-mimplicit-it=always,-Wa$(comma)-mauto-it)
 107AFLAGS_NOWARN   :=$(call as-option,-Wa$(comma)-mno-warn-deprecated,-Wa$(comma)-W)
 108CFLAGS_THUMB2   :=-mthumb $(AFLAGS_AUTOIT) $(AFLAGS_NOWARN)
 109AFLAGS_THUMB2   :=$(CFLAGS_THUMB2) -Wa$(comma)-mthumb
 110# Work around buggy relocation from gas if requested:
 111ifeq ($(CONFIG_THUMB2_AVOID_R_ARM_THM_JUMP11),y)
 112CFLAGS_MODULE   +=-fno-optimize-sibling-calls
 113endif
 114endif
 115
 116# Need -Uarm for gcc < 3.x
 117KBUILD_CFLAGS   +=$(CFLAGS_ABI) $(CFLAGS_THUMB2) $(arch-y) $(tune-y) $(call cc-option,-mshort-load-bytes,$(call cc-option,-malignment-traps,)) -msoft-float -Uarm
 118KBUILD_AFLAGS   +=$(CFLAGS_ABI) $(AFLAGS_THUMB2) $(arch-y) $(tune-y) -include asm/unified.h -msoft-float
 119
 120CHECKFLAGS      += -D__arm__
 121
 122#Default value
 123head-y          := arch/arm/kernel/head$(MMUEXT).o
 124textofs-y       := 0x00008000
 125textofs-$(CONFIG_ARCH_CLPS711X) := 0x00028000
 126# We don't want the htc bootloader to corrupt kernel during resume
 127textofs-$(CONFIG_PM_H1940)      := 0x00108000
 128# SA1111 DMA bug: we don't want the kernel to live in precious DMA-able memory
 129ifeq ($(CONFIG_ARCH_SA1100),y)
 130textofs-$(CONFIG_SA1111) := 0x00208000
 131endif
 132textofs-$(CONFIG_ARCH_MSM7X30) := 0x00208000
 133textofs-$(CONFIG_ARCH_MSM8X60) := 0x00208000
 134textofs-$(CONFIG_ARCH_MSM8960) := 0x00208000
 135
 136# Machine directory name.  This list is sorted alphanumerically
 137# by CONFIG_* macro name.
 138machine-$(CONFIG_ARCH_AT91)             := at91
 139machine-$(CONFIG_ARCH_BCMRING)          := bcmring
 140machine-$(CONFIG_ARCH_CLPS711X)         := clps711x
 141machine-$(CONFIG_ARCH_CNS3XXX)          := cns3xxx
 142machine-$(CONFIG_ARCH_DAVINCI)          := davinci
 143machine-$(CONFIG_ARCH_DOVE)             := dove
 144machine-$(CONFIG_ARCH_EBSA110)          := ebsa110
 145machine-$(CONFIG_ARCH_EP93XX)           := ep93xx
 146machine-$(CONFIG_ARCH_GEMINI)           := gemini
 147machine-$(CONFIG_ARCH_H720X)            := h720x
 148machine-$(CONFIG_ARCH_HIGHBANK)         := highbank
 149machine-$(CONFIG_ARCH_INTEGRATOR)       := integrator
 150machine-$(CONFIG_ARCH_IOP13XX)          := iop13xx
 151machine-$(CONFIG_ARCH_IOP32X)           := iop32x
 152machine-$(CONFIG_ARCH_IOP33X)           := iop33x
 153machine-$(CONFIG_ARCH_IXP4XX)           := ixp4xx
 154machine-$(CONFIG_ARCH_KIRKWOOD)         := kirkwood
 155machine-$(CONFIG_ARCH_KS8695)           := ks8695
 156machine-$(CONFIG_ARCH_LPC32XX)          := lpc32xx
 157machine-$(CONFIG_ARCH_MMP)              := mmp
 158machine-$(CONFIG_ARCH_MSM)              := msm
 159machine-$(CONFIG_ARCH_MV78XX0)          := mv78xx0
 160machine-$(CONFIG_ARCH_IMX_V4_V5)        := imx
 161machine-$(CONFIG_ARCH_IMX_V6_V7)        := imx
 162machine-$(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_PNX4008)          := pnx4008
 171machine-$(CONFIG_ARCH_PRIMA2)           := prima2
 172machine-$(CONFIG_ARCH_PXA)              := pxa
 173machine-$(CONFIG_ARCH_REALVIEW)         := realview
 174machine-$(CONFIG_ARCH_RPC)              := rpc
 175machine-$(CONFIG_ARCH_S3C24XX)          := s3c24xx s3c2412 s3c2440
 176machine-$(CONFIG_ARCH_S3C64XX)          := s3c64xx
 177machine-$(CONFIG_ARCH_S5P64X0)          := s5p64x0
 178machine-$(CONFIG_ARCH_S5PC100)          := s5pc100
 179machine-$(CONFIG_ARCH_S5PV210)          := s5pv210
 180machine-$(CONFIG_ARCH_EXYNOS4)          := exynos
 181machine-$(CONFIG_ARCH_EXYNOS5)          := exynos
 182machine-$(CONFIG_ARCH_SA1100)           := sa1100
 183machine-$(CONFIG_ARCH_SHARK)            := shark
 184machine-$(CONFIG_ARCH_SHMOBILE)         := shmobile
 185machine-$(CONFIG_ARCH_TEGRA)            := tegra
 186machine-$(CONFIG_ARCH_U300)             := u300
 187machine-$(CONFIG_ARCH_U8500)            := ux500
 188machine-$(CONFIG_ARCH_VERSATILE)        := versatile
 189machine-$(CONFIG_ARCH_VEXPRESS)         := vexpress
 190machine-$(CONFIG_ARCH_VT8500)           := vt8500
 191machine-$(CONFIG_ARCH_W90X900)          := w90x900
 192machine-$(CONFIG_FOOTBRIDGE)            := footbridge
 193machine-$(CONFIG_ARCH_SOCFPGA)          := socfpga
 194machine-$(CONFIG_MACH_SPEAR1310)        := spear13xx
 195machine-$(CONFIG_MACH_SPEAR1340)        := spear13xx
 196machine-$(CONFIG_MACH_SPEAR300)         := spear3xx
 197machine-$(CONFIG_MACH_SPEAR310)         := spear3xx
 198machine-$(CONFIG_MACH_SPEAR320)         := spear3xx
 199machine-$(CONFIG_MACH_SPEAR600)         := spear6xx
 200machine-$(CONFIG_ARCH_ZYNQ)             := zynq
 201
 202# Platform directory name.  This list is sorted alphanumerically
 203# by CONFIG_* macro name.
 204plat-$(CONFIG_ARCH_MXC)         := mxc
 205plat-$(CONFIG_ARCH_OMAP)        := omap
 206plat-$(CONFIG_ARCH_S3C64XX)     := samsung
 207plat-$(CONFIG_ARCH_ZYNQ)        := versatile
 208plat-$(CONFIG_PLAT_IOP)         := iop
 209plat-$(CONFIG_PLAT_NOMADIK)     := nomadik
 210plat-$(CONFIG_PLAT_ORION)       := orion
 211plat-$(CONFIG_PLAT_PXA)         := pxa
 212plat-$(CONFIG_PLAT_S3C24XX)     := s3c24xx samsung
 213plat-$(CONFIG_PLAT_S5P)         := samsung
 214plat-$(CONFIG_PLAT_SPEAR)       := spear
 215plat-$(CONFIG_PLAT_VERSATILE)   := versatile
 216
 217ifeq ($(CONFIG_ARCH_EBSA110),y)
 218# This is what happens if you forget the IOCS16 line.
 219# PCMCIA cards stop working.
 220CFLAGS_3c589_cs.o :=-DISA_SIXTEEN_BIT_PERIPHERAL
 221export CFLAGS_3c589_cs.o
 222endif
 223
 224# The byte offset of the kernel image in RAM from the start of RAM.
 225TEXT_OFFSET := $(textofs-y)
 226
 227# The first directory contains additional information for the boot setup code
 228ifneq ($(machine-y),)
 229MACHINE  := arch/arm/mach-$(word 1,$(machine-y))/
 230else
 231MACHINE  :=
 232endif
 233
 234machdirs := $(patsubst %,arch/arm/mach-%/,$(machine-y))
 235platdirs := $(patsubst %,arch/arm/plat-%/,$(plat-y))
 236
 237ifeq ($(KBUILD_SRC),)
 238KBUILD_CPPFLAGS += $(patsubst %,-I%include,$(machdirs) $(platdirs))
 239else
 240KBUILD_CPPFLAGS += $(patsubst %,-I$(srctree)/%include,$(machdirs) $(platdirs))
 241endif
 242
 243export  TEXT_OFFSET GZFLAGS MMUEXT
 244
 245# Do we have FASTFPE?
 246FASTFPE         :=arch/arm/fastfpe
 247ifeq ($(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/
 254
 255# If we have a machine-specific directory, then include it in the build.
 256core-y                          += arch/arm/kernel/ arch/arm/mm/ arch/arm/common/
 257core-y                          += arch/arm/net/
 258core-y                          += $(machdirs) $(platdirs)
 259
 260drivers-$(CONFIG_OPROFILE)      += arch/arm/oprofile/
 261
 262libs-y                          := arch/arm/lib/ $(libs-y)
 263
 264# Default target when executing plain make
 265ifeq ($(CONFIG_XIP_KERNEL),y)
 266KBUILD_IMAGE := xipImage
 267else
 268KBUILD_IMAGE := zImage
 269endif
 270
 271all:    $(KBUILD_IMAGE)
 272
 273boot := arch/arm/boot
 274
 275archprepare:
 276        $(Q)$(MAKE) $(build)=arch/arm/tools include/generated/mach-types.h
 277
 278# Convert bzImage to zImage
 279bzImage: zImage
 280
 281zImage Image xipImage bootpImage uImage: vmlinux
 282        $(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $(boot)/$@
 283
 284zinstall uinstall install: vmlinux
 285        $(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $@
 286
 287%.dtb: scripts
 288        $(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $(boot)/$@
 289
 290dtbs: scripts
 291        $(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $(boot)/$@
 292
 293# We use MRPROPER_FILES and CLEAN_FILES now
 294archclean:
 295        $(Q)$(MAKE) $(clean)=$(boot)
 296
 297# My testing targets (bypasses dependencies)
 298bp:;    $(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $(boot)/bootpImage
 299i zi:;  $(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $@
 300
 301
 302define archhelp
 303  echo  '* zImage        - Compressed kernel image (arch/$(ARCH)/boot/zImage)'
 304  echo  '  Image         - Uncompressed kernel image (arch/$(ARCH)/boot/Image)'
 305  echo  '* xipImage      - XIP kernel image, if configured (arch/$(ARCH)/boot/xipImage)'
 306  echo  '  uImage        - U-Boot wrapped zImage'
 307  echo  '  bootpImage    - Combined zImage and initial RAM disk' 
 308  echo  '                  (supply initrd image via make variable INITRD=<path>)'
 309  echo  '  dtbs          - Build device tree blobs for enabled boards'
 310  echo  '  install       - Install uncompressed kernel'
 311  echo  '  zinstall      - Install compressed kernel'
 312  echo  '  uinstall      - Install U-Boot wrapped compressed kernel'
 313  echo  '                  Install using (your) ~/bin/$(INSTALLKERNEL) or'
 314  echo  '                  (distribution) /sbin/$(INSTALLKERNEL) or'
 315  echo  '                  install to $$(INSTALL_PATH) and run lilo'
 316endef
 317
lxr.linux.no kindly hosted by Redpill Linpro AS, provider of Linux consulting and operations services since 1995.