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  19 # Do not use arch/arm/defconfig - it's always outdated.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