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=$(TEXT_OFFSET)
  15 OBJCOPYFLAGS    :=-O binary -R .note -R .comment -S
  16 GZFLAGS         :=-9
  17 #CFLAGS         +=-pipe
  18
  19 # Do not use arch/arm/defconfig - it's always outdated.
  20 # Select a platform tht is kept up-to-date
  21 KBUILD_DEFCONFIG := versatile_defconfig
  22
  23 # defines filename extension depending memory manement type.
  24 ifeq ($(CONFIG_MMU),)
  25 MMUEXT          := -nommu
  26 endif
  27
  28 ifeq ($(CONFIG_FRAME_POINTER),y)
  29 CFLAGS          +=-fno-omit-frame-pointer -mapcs -mno-sched-prolog
  30 endif
  31
  32 ifeq ($(CONFIG_CPU_BIG_ENDIAN),y)
  33 CPPFLAGS        += -mbig-endian
  34 AS              += -EB
  35 LD              += -EB
  36 else
  37 CPPFLAGS        += -mlittle-endian
  38 AS              += -EL
  39 LD              += -EL
  40 endif
  41
  42 comma = ,
  43
  44 # This selects which instruction set is used.
  45 # Note that GCC does not numerically define an architecture version
  46 # macro, but instead defines a whole series of macros which makes
  47 # testing for a specific architecture or later rather impossible.
  48 arch-$(CONFIG_CPU_32v6)         :=-D__LINUX_ARM_ARCH__=6 $(call cc-option,-march=armv6,-march=armv5t -Wa$(comma)-march=armv6)
  49 arch-$(CONFIG_CPU_32v6K)        :=-D__LINUX_ARM_ARCH__=6 $(call cc-option,-march=armv6k,-march=armv5t -Wa$(comma)-march=armv6k)
  50 arch-$(CONFIG_CPU_32v5)         :=-D__LINUX_ARM_ARCH__=5 $(call cc-option,-march=armv5te,-march=armv4)
  51 arch-$(CONFIG_CPU_32v4)         :=-D__LINUX_ARM_ARCH__=4 -march=armv4
  52 arch-$(CONFIG_CPU_32v3)         :=-D__LINUX_ARM_ARCH__=3 -march=armv3
  53
  54 # This selects how we optimise for the processor.
  55 tune-$(CONFIG_CPU_ARM610)       :=-mtune=arm610
  56 tune-$(CONFIG_CPU_ARM710)       :=-mtune=arm710
  57 tune-$(CONFIG_CPU_ARM720T)      :=-mtune=arm7tdmi
  58 tune-$(CONFIG_CPU_ARM920T)      :=-mtune=arm9tdmi
  59 tune-$(CONFIG_CPU_ARM922T)      :=-mtune=arm9tdmi
  60 tune-$(CONFIG_CPU_ARM925T)      :=-mtune=arm9tdmi
  61 tune-$(CONFIG_CPU_ARM926T)      :=-mtune=arm9tdmi
  62 tune-$(CONFIG_CPU_SA110)        :=-mtune=strongarm110
  63 tune-$(CONFIG_CPU_SA1100)       :=-mtune=strongarm1100
  64 tune-$(CONFIG_CPU_XSCALE)       :=$(call cc-option,-mtune=xscale,-mtune=strongarm110) -Wa,-mcpu=xscale
  65 tune-$(CONFIG_CPU_XSC3)         :=$(call cc-option,-mtune=xscale,-mtune=strongarm110) -Wa,-mcpu=xscale
  66 tune-$(CONFIG_CPU_V6)           :=$(call cc-option,-mtune=arm1136j-s,-mtune=strongarm)
  67
  68 ifeq ($(CONFIG_AEABI),y)
  69 CFLAGS_ABI      :=-mabi=aapcs-linux -mno-thumb-interwork
  70 else
  71 CFLAGS_ABI      :=$(call cc-option,-mapcs-32,-mabi=apcs-gnu) $(call cc-option,-mno-thumb-interwork,)
  72 endif
  73
  74 # Need -Uarm for gcc < 3.x
  75 CFLAGS          +=$(CFLAGS_ABI) $(arch-y) $(tune-y) $(call cc-option,-mshort-load-bytes,$(call cc-option,-malignment-traps,)) -msoft-float -Uarm
  76 AFLAGS          +=$(CFLAGS_ABI) $(arch-y) $(tune-y) -msoft-float
  77
  78 CHECKFLAGS      += -D__arm__
  79
  80 #Default value
  81 head-y          := arch/arm/kernel/head$(MMUEXT).o arch/arm/kernel/init_task.o
  82 textofs-y       := 0x00008000
  83
  84  machine-$(CONFIG_ARCH_RPC)        := rpc
  85  machine-$(CONFIG_ARCH_EBSA110)    := ebsa110
  86  machine-$(CONFIG_ARCH_CLPS7500)   := clps7500
  87   incdir-$(CONFIG_ARCH_CLPS7500)   := cl7500
  88  machine-$(CONFIG_FOOTBRIDGE)      := footbridge
  89   incdir-$(CONFIG_FOOTBRIDGE)      := ebsa285
  90  machine-$(CONFIG_ARCH_CO285)      := footbridge
  91   incdir-$(CONFIG_ARCH_CO285)      := ebsa285
  92  machine-$(CONFIG_ARCH_SHARK)      := shark
  93  machine-$(CONFIG_ARCH_SA1100)     := sa1100
  94 ifeq ($(CONFIG_ARCH_SA1100),y)
  95 # SA1111 DMA bug: we don't want the kernel to live in precious DMA-able memory
  96  textofs-$(CONFIG_SA1111)          := 0x00208000
  97 endif
  98  machine-$(CONFIG_ARCH_PXA)        := pxa
  99  machine-$(CONFIG_ARCH_L7200)      := l7200
 100  machine-$(CONFIG_ARCH_INTEGRATOR) := integrator
 101  textofs-$(CONFIG_ARCH_CLPS711X)   := 0x00028000
 102  machine-$(CONFIG_ARCH_CLPS711X)   := clps711x
 103  machine-$(CONFIG_ARCH_IOP3XX)     := iop3xx
 104  machine-$(CONFIG_ARCH_IXP4XX)     := ixp4xx
 105  machine-$(CONFIG_ARCH_IXP2000)    := ixp2000
 106  machine-$(CONFIG_ARCH_IXP23XX)    := ixp23xx
 107  machine-$(CONFIG_ARCH_OMAP1)      := omap1
 108  machine-$(CONFIG_ARCH_OMAP2)      := omap2
 109   incdir-$(CONFIG_ARCH_OMAP)       := omap
 110  machine-$(CONFIG_ARCH_S3C2410)    := s3c2410
 111  machine-$(CONFIG_ARCH_LH7A40X)    := lh7a40x
 112  machine-$(CONFIG_ARCH_VERSATILE)  := versatile
 113  machine-$(CONFIG_ARCH_IMX)        := imx
 114  machine-$(CONFIG_ARCH_H720X)      := h720x
 115  machine-$(CONFIG_ARCH_AAEC2000)   := aaec2000
 116  machine-$(CONFIG_ARCH_REALVIEW)   := realview
 117  machine-$(CONFIG_ARCH_AT91RM9200) := at91rm9200
 118  machine-$(CONFIG_ARCH_EP93XX)     := ep93xx
 119  machine-$(CONFIG_ARCH_PNX4008)    := pnx4008
 120  machine-$(CONFIG_ARCH_NETX)       := netx
 121
 122 ifeq ($(CONFIG_ARCH_EBSA110),y)
 123 # This is what happens if you forget the IOCS16 line.
 124 # PCMCIA cards stop working.
 125 CFLAGS_3c589_cs.o :=-DISA_SIXTEEN_BIT_PERIPHERAL
 126 export CFLAGS_3c589_cs.o
 127 endif
 128
 129 # The byte offset of the kernel image in RAM from the start of RAM.
 130 TEXT_OFFSET := $(textofs-y)
 131
 132 ifeq ($(incdir-y),)
 133 incdir-y := $(machine-y)
 134 endif
 135 INCDIR   := arch-$(incdir-y)
 136
 137 ifneq ($(machine-y),)
 138 MACHINE  := arch/arm/mach-$(machine-y)/
 139 else
 140 MACHINE  :=
 141 endif
 142
 143 export  TEXT_OFFSET GZFLAGS MMUEXT
 144
 145 # Do we have FASTFPE?
 146 FASTFPE         :=arch/arm/fastfpe
 147 ifeq ($(FASTFPE),$(wildcard $(FASTFPE)))
 148 FASTFPE_OBJ     :=$(FASTFPE)/
 149 endif
 150
 151 # If we have a machine-specific directory, then include it in the build.
 152 core-y                          += arch/arm/kernel/ arch/arm/mm/ arch/arm/common/
 153 core-y                          += $(MACHINE)
 154 core-$(CONFIG_FPE_NWFPE)        += arch/arm/nwfpe/
 155 core-$(CONFIG_FPE_FASTFPE)      += $(FASTFPE_OBJ)
 156 core-$(CONFIG_VFP)              += arch/arm/vfp/
 157
 158 # If we have a common platform directory, then include it in the build.
 159 core-$(CONFIG_ARCH_OMAP)        += arch/arm/plat-omap/
 160
 161 drivers-$(CONFIG_OPROFILE)      += arch/arm/oprofile/
 162 drivers-$(CONFIG_ARCH_CLPS7500) += drivers/acorn/char/
 163 drivers-$(CONFIG_ARCH_L7200)    += drivers/acorn/char/
 164
 165 libs-y                          := arch/arm/lib/ $(libs-y)
 166
 167 # Default target when executing plain make
 168 ifeq ($(CONFIG_XIP_KERNEL),y)
 169 all: xipImage
 170 else
 171 all: zImage
 172 endif
 173
 174 boot := arch/arm/boot
 175
 176 #       Update machine arch and proc symlinks if something which affects
 177 #       them changed.  We use .arch to indicate when they were updated
 178 #       last, otherwise make uses the target directory mtime.
 179
 180 include/asm-arm/.arch: $(wildcard include/config/arch/*.h) include/config/auto.conf
 181         @echo '  SYMLINK include/asm-arm/arch -> include/asm-arm/$(INCDIR)'
 182 ifneq ($(KBUILD_SRC),)
 183         $(Q)mkdir -p include/asm-arm
 184         $(Q)ln -fsn $(srctree)/include/asm-arm/$(INCDIR) include/asm-arm/arch
 185 else
 186         $(Q)ln -fsn $(INCDIR) include/asm-arm/arch
 187 endif
 188         @touch $@
 189
 190 archprepare: maketools
 191
 192 PHONY += maketools FORCE
 193 maketools: include/linux/version.h include/asm-arm/.arch FORCE
 194         $(Q)$(MAKE) $(build)=arch/arm/tools include/asm-arm/mach-types.h
 195
 196 # Convert bzImage to zImage
 197 bzImage: zImage
 198
 199 zImage Image xipImage bootpImage uImage: vmlinux
 200         $(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $(boot)/$@
 201
 202 zinstall install: vmlinux
 203         $(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $@
 204
 205 CLEAN_FILES += include/asm-arm/mach-types.h \
 206                include/asm-arm/arch include/asm-arm/.arch
 207
 208 # We use MRPROPER_FILES and CLEAN_FILES now
 209 archclean:
 210         $(Q)$(MAKE) $(clean)=$(boot)
 211
 212 # My testing targets (bypasses dependencies)
 213 bp:;    $(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $(boot)/bootpImage
 214 i zi:;  $(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $@
 215
 216
 217 define archhelp
 218   echo  '* zImage        - Compressed kernel image (arch/$(ARCH)/boot/zImage)'
 219   echo  '  Image         - Uncompressed kernel image (arch/$(ARCH)/boot/Image)'
 220   echo  '* xipImage      - XIP kernel image, if configured (arch/$(ARCH)/boot/xipImage)'
 221   echo  '  bootpImage    - Combined zImage and initial RAM disk'
 222   echo  '                  (supply initrd image via make variable INITRD=<path>)'
 223   echo  '  install       - Install uncompressed kernel'
 224   echo  '  zinstall      - Install compressed kernel'
 225   echo  '                  Install using (your) ~/bin/installkernel or'
 226   echo  '                  (distribution) /sbin/installkernel or'
 227   echo  '                  install to $$(INSTALL_PATH) and run lilo'
 228 endef