arch/arm/Makefile

   1 #
   2 # arch/arm/Makefile
   3 #
   4 # This file is subject to the terms and conditions of the GNU General Public
   5 # License.  See the file "COPYING" in the main directory of this archive
   6 # for more details.
   7 #
   8 # Copyright (C) 1995-2001 by Russell King
   9
  10 LDFLAGS_vmlinux :=-p --no-undefined -X
  11 CPPFLAGS_vmlinux.lds = -DTEXT_OFFSET=$(TEXT_OFFSET)
  12 OBJCOPYFLAGS    :=-O binary -R .note -R .comment -S
  13 GZFLAGS         :=-9
  14 #CFLAGS         +=-pipe
  15
  16 # Do not use arch/arm/defconfig - it's always outdated.
  17 # Select a platform tht is kept up-to-date
  18 KBUILD_DEFCONFIG := versatile_defconfig
  19
  20 ifeq ($(CONFIG_FRAME_POINTER),y)
  21 CFLAGS          +=-fno-omit-frame-pointer -mapcs -mno-sched-prolog
  22 endif
  23
  24 ifeq ($(CONFIG_CPU_BIG_ENDIAN),y)
  25 CPPFLAGS        += -mbig-endian
  26 AS              += -EB
  27 LD              += -EB
  28 else
  29 CPPFLAGS        += -mlittle-endian
  30 AS              += -EL
  31 LD              += -EL
  32 endif
  33
  34 comma = ,
  35
  36 # This selects which instruction set is used.
  37 # Note that GCC does not numerically define an architecture version
  38 # macro, but instead defines a whole series of macros which makes
  39 # testing for a specific architecture or later rather impossible.
  40 arch-$(CONFIG_CPU_32v6)         :=-D__LINUX_ARM_ARCH__=6 $(call cc-option,-march=armv6,-march=armv5t -Wa$(comma)-march=armv6)
  41 arch-$(CONFIG_CPU_32v6K)        :=-D__LINUX_ARM_ARCH__=6 $(call cc-option,-march=armv6k,-march=armv5t -Wa$(comma)-march=armv6k)
  42 arch-$(CONFIG_CPU_32v5)         :=-D__LINUX_ARM_ARCH__=5 $(call cc-option,-march=armv5te,-march=armv4)
  43 arch-$(CONFIG_CPU_32v4)         :=-D__LINUX_ARM_ARCH__=4 -march=armv4
  44 arch-$(CONFIG_CPU_32v3)         :=-D__LINUX_ARM_ARCH__=3 -march=armv3
  45
  46 # This selects how we optimise for the processor.
  47 tune-$(CONFIG_CPU_ARM610)       :=-mtune=arm610
  48 tune-$(CONFIG_CPU_ARM710)       :=-mtune=arm710
  49 tune-$(CONFIG_CPU_ARM720T)      :=-mtune=arm7tdmi
  50 tune-$(CONFIG_CPU_ARM920T)      :=-mtune=arm9tdmi
  51 tune-$(CONFIG_CPU_ARM922T)      :=-mtune=arm9tdmi
  52 tune-$(CONFIG_CPU_ARM925T)      :=-mtune=arm9tdmi
  53 tune-$(CONFIG_CPU_ARM926T)      :=-mtune=arm9tdmi
  54 tune-$(CONFIG_CPU_SA110)        :=-mtune=strongarm110
  55 tune-$(CONFIG_CPU_SA1100)       :=-mtune=strongarm1100
  56 tune-$(CONFIG_CPU_XSCALE)       :=$(call cc-option,-mtune=xscale,-mtune=strongarm110) -Wa,-mcpu=xscale
  57 tune-$(CONFIG_CPU_V6)           :=$(call cc-option,-mtune=arm1136j-s,-mtune=strongarm)
  58
  59 ifeq ($(CONFIG_AEABI),y)
  60 CFLAGS_ABI      :=-mabi=aapcs -mno-thumb-interwork
  61 else
  62 CFLAGS_ABI      :=$(call cc-option,-mapcs-32,-mabi=apcs-gnu) $(call cc-option,-mno-thumb-interwork,)
  63 endif
  64
  65 # Need -Uarm for gcc < 3.x
  66 CFLAGS          +=$(CFLAGS_ABI) $(arch-y) $(tune-y) $(call cc-option,-mshort-load-bytes,$(call cc-option,-malignment-traps,)) -msoft-float -Uarm
  67 AFLAGS          +=$(CFLAGS_ABI) $(arch-y) $(tune-y) -msoft-float
  68
  69 CHECKFLAGS      += -D__arm__
  70
  71 #Default value
  72 head-y          := arch/arm/kernel/head.o arch/arm/kernel/init_task.o
  73 textofs-y       := 0x00008000
  74
  75  machine-$(CONFIG_ARCH_RPC)        := rpc
  76  machine-$(CONFIG_ARCH_EBSA110)    := ebsa110
  77  machine-$(CONFIG_ARCH_CLPS7500)   := clps7500
  78   incdir-$(CONFIG_ARCH_CLPS7500)   := cl7500
  79  machine-$(CONFIG_FOOTBRIDGE)      := footbridge
  80   incdir-$(CONFIG_FOOTBRIDGE)      := ebsa285
  81  machine-$(CONFIG_ARCH_CO285)      := footbridge
  82   incdir-$(CONFIG_ARCH_CO285)      := ebsa285
  83  machine-$(CONFIG_ARCH_SHARK)      := shark
  84  machine-$(CONFIG_ARCH_SA1100)     := sa1100
  85 ifeq ($(CONFIG_ARCH_SA1100),y)
  86 # SA1111 DMA bug: we don't want the kernel to live in precious DMA-able memory
  87  textofs-$(CONFIG_SA1111)          := 0x00208000
  88 endif
  89  machine-$(CONFIG_ARCH_PXA)        := pxa
  90  machine-$(CONFIG_ARCH_L7200)      := l7200
  91  machine-$(CONFIG_ARCH_INTEGRATOR) := integrator
  92  textofs-$(CONFIG_ARCH_CLPS711X)   := 0x00028000
  93  machine-$(CONFIG_ARCH_CLPS711X)   := clps711x
  94  machine-$(CONFIG_ARCH_IOP3XX)     := iop3xx
  95  machine-$(CONFIG_ARCH_IXP4XX)     := ixp4xx
  96  machine-$(CONFIG_ARCH_IXP2000)    := ixp2000
  97  machine-$(CONFIG_ARCH_OMAP1)      := omap1
  98  machine-$(CONFIG_ARCH_OMAP2)      := omap2
  99   incdir-$(CONFIG_ARCH_OMAP)       := omap
 100  machine-$(CONFIG_ARCH_S3C2410)    := s3c2410
 101  machine-$(CONFIG_ARCH_LH7A40X)    := lh7a40x
 102  machine-$(CONFIG_ARCH_VERSATILE)  := versatile
 103  machine-$(CONFIG_ARCH_IMX)        := imx
 104  machine-$(CONFIG_ARCH_H720X)      := h720x
 105  machine-$(CONFIG_ARCH_AAEC2000)   := aaec2000
 106  machine-$(CONFIG_ARCH_REALVIEW)   := realview
 107  machine-$(CONFIG_ARCH_AT91RM9200) := at91rm9200
 108
 109 ifeq ($(CONFIG_ARCH_EBSA110),y)
 110 # This is what happens if you forget the IOCS16 line.
 111 # PCMCIA cards stop working.
 112 CFLAGS_3c589_cs.o :=-DISA_SIXTEEN_BIT_PERIPHERAL
 113 export CFLAGS_3c589_cs.o
 114 endif
 115
 116 # The byte offset of the kernel image in RAM from the start of RAM.
 117 TEXT_OFFSET := $(textofs-y)
 118
 119 ifeq ($(incdir-y),)
 120 incdir-y := $(machine-y)
 121 endif
 122 INCDIR   := arch-$(incdir-y)
 123
 124 ifneq ($(machine-y),)
 125 MACHINE  := arch/arm/mach-$(machine-y)/
 126 else
 127 MACHINE  :=
 128 endif
 129
 130 export  TEXT_OFFSET GZFLAGS
 131
 132 # Do we have FASTFPE?
 133 FASTFPE         :=arch/arm/fastfpe
 134 ifeq ($(FASTFPE),$(wildcard $(FASTFPE)))
 135 FASTFPE_OBJ     :=$(FASTFPE)/
 136 endif
 137
 138 # If we have a machine-specific directory, then include it in the build.
 139 core-y                          += arch/arm/kernel/ arch/arm/mm/ arch/arm/common/
 140 core-y                          += $(MACHINE)
 141 core-$(CONFIG_FPE_NWFPE)        += arch/arm/nwfpe/
 142 core-$(CONFIG_FPE_FASTFPE)      += $(FASTFPE_OBJ)
 143 core-$(CONFIG_VFP)              += arch/arm/vfp/
 144
 145 # If we have a common platform directory, then include it in the build.
 146 core-$(CONFIG_ARCH_OMAP)        += arch/arm/plat-omap/
 147
 148 drivers-$(CONFIG_OPROFILE)      += arch/arm/oprofile/
 149 drivers-$(CONFIG_ARCH_CLPS7500) += drivers/acorn/char/
 150 drivers-$(CONFIG_ARCH_L7200)    += drivers/acorn/char/
 151
 152 libs-y                          := arch/arm/lib/ $(libs-y)
 153
 154 # Default target when executing plain make
 155 ifeq ($(CONFIG_XIP_KERNEL),y)
 156 all: xipImage
 157 else
 158 all: zImage
 159 endif
 160
 161 boot := arch/arm/boot
 162
 163 #       Update machine arch and proc symlinks if something which affects
 164 #       them changed.  We use .arch to indicate when they were updated
 165 #       last, otherwise make uses the target directory mtime.
 166
 167 include/asm-arm/.arch: $(wildcard include/config/arch/*.h) include/config/MARKER
 168         @echo '  SYMLINK include/asm-arm/arch -> include/asm-arm/$(INCDIR)'
 169 ifneq ($(KBUILD_SRC),)
 170         $(Q)mkdir -p include/asm-arm
 171         $(Q)ln -fsn $(srctree)/include/asm-arm/$(INCDIR) include/asm-arm/arch
 172 else
 173         $(Q)ln -fsn $(INCDIR) include/asm-arm/arch
 174 endif
 175         @touch $@
 176
 177 archprepare: maketools
 178
 179 .PHONY: maketools FORCE
 180 maketools: include/linux/version.h include/asm-arm/.arch FORCE
 181         $(Q)$(MAKE) $(build)=arch/arm/tools include/asm-arm/mach-types.h
 182
 183 # Convert bzImage to zImage
 184 bzImage: zImage
 185
 186 zImage Image xipImage bootpImage uImage: vmlinux
 187         $(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $(boot)/$@
 188
 189 zinstall install: vmlinux
 190         $(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $@
 191
 192 CLEAN_FILES += include/asm-arm/mach-types.h \
 193                include/asm-arm/arch include/asm-arm/.arch
 194
 195 # We use MRPROPER_FILES and CLEAN_FILES now
 196 archclean:
 197         $(Q)$(MAKE) $(clean)=$(boot)
 198
 199 # My testing targets (bypasses dependencies)
 200 bp:;    $(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $(boot)/bootpImage
 201 i zi:;  $(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $@
 202
 203
 204 define archhelp
 205   echo  '* zImage        - Compressed kernel image (arch/$(ARCH)/boot/zImage)'
 206   echo  '  Image         - Uncompressed kernel image (arch/$(ARCH)/boot/Image)'
 207   echo  '* xipImage      - XIP kernel image, if configured (arch/$(ARCH)/boot/xipImage)'
 208   echo  '  bootpImage    - Combined zImage and initial RAM disk'
 209   echo  '                  (supply initrd image via make variable INITRD=<path>)'
 210   echo  '  install       - Install uncompressed kernel'
 211   echo  '  zinstall      - Install compressed kernel'
 212   echo  '                  Install using (your) ~/bin/installkernel or'
 213   echo  '                  (distribution) /sbin/installkernel or'
 214   echo  '                  install to $$(INSTALL_PATH) and run lilo'
 215 endef