arch/arm/Makefile

   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 LDFLAGS_vmlinux :=-p --no-undefined -X
  14 CPPFLAGS_vmlinux.lds = -DTEXT_OFFSET=$(TEXT_OFFSET)
  15 OBJCOPYFLAGS    :=-O binary -R .note -R .note.gnu.build-id -R .comment -S
  16 GZFLAGS         :=-9
  17 #KBUILD_CFLAGS  +=-pipe
  18 # Explicitly specifiy 32-bit ARM ISA since toolchain default can be -mthumb:
  19 KBUILD_CFLAGS   +=$(call cc-option,-marm,)
  20
  21 # Do not use arch/arm/defconfig - it's always outdated.
  22 # Select a platform tht is kept up-to-date
  23 KBUILD_DEFCONFIG := versatile_defconfig
  24
  25 # defines filename extension depending memory manement type.
  26 ifeq ($(CONFIG_MMU),)
  27 MMUEXT          := -nommu
  28 endif
  29
  30 ifeq ($(CONFIG_FRAME_POINTER),y)
  31 KBUILD_CFLAGS   +=-fno-omit-frame-pointer -mapcs -mno-sched-prolog
  32 endif
  33
  34 ifeq ($(CONFIG_CPU_BIG_ENDIAN),y)
  35 KBUILD_CPPFLAGS += -mbig-endian
  36 AS              += -EB
  37 LD              += -EB
  38 else
  39 KBUILD_CPPFLAGS += -mlittle-endian
  40 AS              += -EL
  41 LD              += -EL
  42 endif
  43
  44 comma = ,
  45
  46 # This selects which instruction set is used.
  47 # Note that GCC does not numerically define an architecture version
  48 # macro, but instead defines a whole series of macros which makes
  49 # testing for a specific architecture or later rather impossible.
  50 arch-$(CONFIG_CPU_32v7)         :=-D__LINUX_ARM_ARCH__=7 $(call cc-option,-march=armv7-a,-march=armv5t -Wa$(comma)-march=armv7-a)
  51 arch-$(CONFIG_CPU_32v6)         :=-D__LINUX_ARM_ARCH__=6 $(call cc-option,-march=armv6,-march=armv5t -Wa$(comma)-march=armv6)
  52 # Only override the compiler option if ARMv6. The ARMv6K extensions are
  53 # always available in ARMv7
  54 ifeq ($(CONFIG_CPU_32v6),y)
  55 arch-$(CONFIG_CPU_32v6K)        :=-D__LINUX_ARM_ARCH__=6 $(call cc-option,-march=armv6k,-march=armv5t -Wa$(comma)-march=armv6k)
  56 endif
  57 arch-$(CONFIG_CPU_32v5)         :=-D__LINUX_ARM_ARCH__=5 $(call cc-option,-march=armv5te,-march=armv4t)
  58 arch-$(CONFIG_CPU_32v4T)        :=-D__LINUX_ARM_ARCH__=4 -march=armv4t
  59 arch-$(CONFIG_CPU_32v4)         :=-D__LINUX_ARM_ARCH__=4 -march=armv4
  60 arch-$(CONFIG_CPU_32v3)         :=-D__LINUX_ARM_ARCH__=3 -march=armv3
  61
  62 # This selects how we optimise for the processor.
  63 tune-$(CONFIG_CPU_ARM610)       :=-mtune=arm610
  64 tune-$(CONFIG_CPU_ARM710)       :=-mtune=arm710
  65 tune-$(CONFIG_CPU_ARM7TDMI)     :=-mtune=arm7tdmi
  66 tune-$(CONFIG_CPU_ARM720T)      :=-mtune=arm7tdmi
  67 tune-$(CONFIG_CPU_ARM740T)      :=-mtune=arm7tdmi
  68 tune-$(CONFIG_CPU_ARM9TDMI)     :=-mtune=arm9tdmi
  69 tune-$(CONFIG_CPU_ARM940T)      :=-mtune=arm9tdmi
  70 tune-$(CONFIG_CPU_ARM946E)      :=$(call cc-option,-mtune=arm9e,-mtune=arm9tdmi)
  71 tune-$(CONFIG_CPU_ARM920T)      :=-mtune=arm9tdmi
  72 tune-$(CONFIG_CPU_ARM922T)      :=-mtune=arm9tdmi
  73 tune-$(CONFIG_CPU_ARM925T)      :=-mtune=arm9tdmi
  74 tune-$(CONFIG_CPU_ARM926T)      :=-mtune=arm9tdmi
  75 tune-$(CONFIG_CPU_FA526)        :=-mtune=arm9tdmi
  76 tune-$(CONFIG_CPU_SA110)        :=-mtune=strongarm110
  77 tune-$(CONFIG_CPU_SA1100)       :=-mtune=strongarm1100
  78 tune-$(CONFIG_CPU_XSCALE)       :=$(call cc-option,-mtune=xscale,-mtune=strongarm110) -Wa,-mcpu=xscale
  79 tune-$(CONFIG_CPU_XSC3)         :=$(call cc-option,-mtune=xscale,-mtune=strongarm110) -Wa,-mcpu=xscale
  80 tune-$(CONFIG_CPU_FEROCEON)     :=$(call cc-option,-mtune=marvell-f,-mtune=xscale)
  81 tune-$(CONFIG_CPU_V6)           :=$(call cc-option,-mtune=arm1136j-s,-mtune=strongarm)
  82
  83 ifeq ($(CONFIG_AEABI),y)
  84 CFLAGS_ABI      :=-mabi=aapcs-linux -mno-thumb-interwork
  85 else
  86 CFLAGS_ABI      :=$(call cc-option,-mapcs-32,-mabi=apcs-gnu) $(call cc-option,-mno-thumb-interwork,)
  87 endif
  88
  89 ifeq ($(CONFIG_ARM_UNWIND),y)
  90 CFLAGS_ABI      +=-funwind-tables
  91 endif
  92
  93 # Need -Uarm for gcc < 3.x
  94 KBUILD_CFLAGS   +=$(CFLAGS_ABI) $(arch-y) $(tune-y) $(call cc-option,-mshort-load-bytes,$(call cc-option,-malignment-traps,)) -msoft-float -Uarm
  95 KBUILD_AFLAGS   +=$(CFLAGS_ABI) $(arch-y) $(tune-y) -msoft-float
  96
  97 CHECKFLAGS      += -D__arm__
  98
  99 #Default value
 100 head-y          := arch/arm/kernel/head$(MMUEXT).o arch/arm/kernel/init_task.o
 101 textofs-y       := 0x00008000
 102 textofs-$(CONFIG_ARCH_CLPS711X) := 0x00028000
 103 # SA1111 DMA bug: we don't want the kernel to live in precious DMA-able memory
 104 ifeq ($(CONFIG_ARCH_SA1100),y)
 105 textofs-$(CONFIG_SA1111) := 0x00208000
 106 endif
 107
 108 # Machine directory name.  This list is sorted alphanumerically
 109 # by CONFIG_* macro name.
 110 machine-$(CONFIG_ARCH_AAEC2000)         := aaec2000
 111 machine-$(CONFIG_ARCH_AT91)             := at91
 112 machine-$(CONFIG_ARCH_CLPS711X)         := clps711x
 113 machine-$(CONFIG_ARCH_DAVINCI)          := davinci
 114 machine-$(CONFIG_ARCH_EBSA110)          := ebsa110
 115 machine-$(CONFIG_ARCH_EP93XX)           := ep93xx
 116 machine-$(CONFIG_ARCH_GEMINI)           := gemini
 117 machine-$(CONFIG_ARCH_H720X)            := h720x
 118 machine-$(CONFIG_ARCH_INTEGRATOR)       := integrator
 119 machine-$(CONFIG_ARCH_IOP13XX)          := iop13xx
 120 machine-$(CONFIG_ARCH_IOP32X)           := iop32x
 121 machine-$(CONFIG_ARCH_IOP33X)           := iop33x
 122 machine-$(CONFIG_ARCH_IXP2000)          := ixp2000
 123 machine-$(CONFIG_ARCH_IXP23XX)          := ixp23xx
 124 machine-$(CONFIG_ARCH_IXP4XX)           := ixp4xx
 125 machine-$(CONFIG_ARCH_KIRKWOOD)         := kirkwood
 126 machine-$(CONFIG_ARCH_KS8695)           := ks8695
 127 machine-$(CONFIG_ARCH_L7200)            := l7200
 128 machine-$(CONFIG_ARCH_LH7A40X)          := lh7a40x
 129 machine-$(CONFIG_ARCH_LOKI)             := loki
 130 machine-$(CONFIG_ARCH_MMP)              := mmp
 131 machine-$(CONFIG_ARCH_MSM)              := msm
 132 machine-$(CONFIG_ARCH_MV78XX0)          := mv78xx0
 133 machine-$(CONFIG_ARCH_MX1)              := mx1
 134 machine-$(CONFIG_ARCH_MX2)              := mx2
 135 machine-$(CONFIG_ARCH_MX3)              := mx3
 136 machine-$(CONFIG_ARCH_NETX)             := netx
 137 machine-$(CONFIG_ARCH_NS9XXX)           := ns9xxx
 138 machine-$(CONFIG_ARCH_OMAP1)            := omap1
 139 machine-$(CONFIG_ARCH_OMAP2)            := omap2
 140 machine-$(CONFIG_ARCH_OMAP3)            := omap2
 141 machine-$(CONFIG_ARCH_OMAP4)            := omap2
 142 machine-$(CONFIG_ARCH_ORION5X)          := orion5x
 143 machine-$(CONFIG_ARCH_PNX4008)          := pnx4008
 144 machine-$(CONFIG_ARCH_PXA)              := pxa
 145 machine-$(CONFIG_ARCH_REALVIEW)         := realview
 146 machine-$(CONFIG_ARCH_RPC)              := rpc
 147 machine-$(CONFIG_ARCH_S3C2410)          := s3c2410 s3c2400 s3c2412 s3c2440 s3c2442 s3c2443
 148 machine-$(CONFIG_ARCH_S3C24A0)          := s3c24a0
 149 machine-$(CONFIG_ARCH_S3C64XX)          := s3c6400 s3c6410
 150 machine-$(CONFIG_ARCH_SA1100)           := sa1100
 151 machine-$(CONFIG_ARCH_SHARK)            := shark
 152 machine-$(CONFIG_ARCH_VERSATILE)        := versatile
 153 machine-$(CONFIG_ARCH_W90X900)          := w90x900
 154 machine-$(CONFIG_FOOTBRIDGE)            := footbridge
 155
 156 # Platform directory name.  This list is sorted alphanumerically
 157 # by CONFIG_* macro name.
 158 plat-$(CONFIG_ARCH_MXC)         := mxc
 159 plat-$(CONFIG_ARCH_OMAP)        := omap
 160 plat-$(CONFIG_PLAT_IOP)         := iop
 161 plat-$(CONFIG_PLAT_ORION)       := orion
 162 plat-$(CONFIG_PLAT_PXA)         := pxa
 163 plat-$(CONFIG_PLAT_S3C24XX)     := s3c24xx s3c
 164 plat-$(CONFIG_PLAT_S3C64XX)     := s3c64xx s3c
 165
 166 ifeq ($(CONFIG_ARCH_EBSA110),y)
 167 # This is what happens if you forget the IOCS16 line.
 168 # PCMCIA cards stop working.
 169 CFLAGS_3c589_cs.o :=-DISA_SIXTEEN_BIT_PERIPHERAL
 170 export CFLAGS_3c589_cs.o
 171 endif
 172
 173 # The byte offset of the kernel image in RAM from the start of RAM.
 174 TEXT_OFFSET := $(textofs-y)
 175
 176 # The first directory contains additional information for the boot setup code
 177 ifneq ($(machine-y),)
 178 MACHINE  := arch/arm/mach-$(word 1,$(machine-y))/
 179 else
 180 MACHINE  :=
 181 endif
 182
 183 machdirs := $(patsubst %,arch/arm/mach-%/,$(machine-y))
 184 platdirs := $(patsubst %,arch/arm/plat-%/,$(plat-y))
 185
 186 ifeq ($(KBUILD_SRC),)
 187 KBUILD_CPPFLAGS += $(patsubst %,-I%include,$(machdirs) $(platdirs))
 188 else
 189 KBUILD_CPPFLAGS += $(patsubst %,-I$(srctree)/%include,$(machdirs) $(platdirs))
 190 endif
 191
 192 export  TEXT_OFFSET GZFLAGS MMUEXT
 193
 194 # Do we have FASTFPE?
 195 FASTFPE         :=arch/arm/fastfpe
 196 ifeq ($(FASTFPE),$(wildcard $(FASTFPE)))
 197 FASTFPE_OBJ     :=$(FASTFPE)/
 198 endif
 199
 200 # If we have a machine-specific directory, then include it in the build.
 201 core-y                          += arch/arm/kernel/ arch/arm/mm/ arch/arm/common/
 202 core-y                          += $(machdirs) $(platdirs)
 203 core-$(CONFIG_FPE_NWFPE)        += arch/arm/nwfpe/
 204 core-$(CONFIG_FPE_FASTFPE)      += $(FASTFPE_OBJ)
 205 core-$(CONFIG_VFP)              += arch/arm/vfp/
 206
 207 drivers-$(CONFIG_OPROFILE)      += arch/arm/oprofile/
 208
 209 libs-y                          := arch/arm/lib/ $(libs-y)
 210
 211 # Default target when executing plain make
 212 ifeq ($(CONFIG_XIP_KERNEL),y)
 213 KBUILD_IMAGE := xipImage
 214 else
 215 KBUILD_IMAGE := zImage
 216 endif
 217
 218 all:    $(KBUILD_IMAGE)
 219
 220 boot := arch/arm/boot
 221
 222 #       Update machine arch and proc symlinks if something which affects
 223 #       them changed.  We use .arch to indicate when they were updated
 224 #       last, otherwise make uses the target directory mtime.
 225
 226 archprepare: maketools
 227
 228 PHONY += maketools FORCE
 229 maketools: include/linux/version.h FORCE
 230         $(Q)$(MAKE) $(build)=arch/arm/tools include/asm-arm/mach-types.h
 231
 232 # Convert bzImage to zImage
 233 bzImage: zImage
 234
 235 zImage Image xipImage bootpImage uImage: vmlinux
 236         $(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $(boot)/$@
 237
 238 zinstall install: vmlinux
 239         $(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $@
 240
 241 CLEAN_FILES += include/asm-arm/mach-types.h \
 242                include/asm-arm/arch include/asm-arm/.arch
 243
 244 # We use MRPROPER_FILES and CLEAN_FILES now
 245 archclean:
 246         $(Q)$(MAKE) $(clean)=$(boot)
 247
 248 # My testing targets (bypasses dependencies)
 249 bp:;    $(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $(boot)/bootpImage
 250 i zi:;  $(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $@
 251
 252
 253 define archhelp
 254   echo  '* zImage        - Compressed kernel image (arch/$(ARCH)/boot/zImage)'
 255   echo  '  Image         - Uncompressed kernel image (arch/$(ARCH)/boot/Image)'
 256   echo  '* xipImage      - XIP kernel image, if configured (arch/$(ARCH)/boot/xipImage)'
 257   echo  '  uImage        - U-Boot wrapped zImage'
 258   echo  '  bootpImage    - Combined zImage and initial RAM disk'
 259   echo  '                  (supply initrd image via make variable INITRD=<path>)'
 260   echo  '  install       - Install uncompressed kernel'
 261   echo  '  zinstall      - Install compressed kernel'
 262   echo  '                  Install using (your) ~/bin/installkernel or'
 263   echo  '                  (distribution) /sbin/installkernel or'
 264   echo  '                  install to $$(INSTALL_PATH) and run lilo'
 265 endef