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  19 # Do not use arch/arm/defconfig - it's always outdated.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 $(call cc-option,-march=armv5te,-march=armv4t)
  51 arch-$(CONFIG_CPU_32v4T)        :=-D__LINUX_ARM_ARCH__=4 -march=armv4t
  52 arch-$(CONFIG_CPU_32v4)         :=-D__LINUX_ARM_ARCH__=4 -march=armv4
  53 arch-$(CONFIG_CPU_32v3)         :=-D__LINUX_ARM_ARCH__=3 -march=armv3
  54
  55 # This selects how we optimise for the processor.
  56 tune-$(CONFIG_CPU_ARM610)       :=-mtune=arm610
  57 tune-$(CONFIG_CPU_ARM710)       :=-mtune=arm710
  58 tune-$(CONFIG_CPU_ARM720T)      :=-mtune=arm7tdmi
  59 tune-$(CONFIG_CPU_ARM920T)      :=-mtune=arm9tdmi
  60 tune-$(CONFIG_CPU_ARM922T)      :=-mtune=arm9tdmi
  61 tune-$(CONFIG_CPU_ARM925T)      :=-mtune=arm9tdmi
  62 tune-$(CONFIG_CPU_ARM926T)      :=-mtune=arm9tdmi
  63 tune-$(CONFIG_CPU_SA110)        :=-mtune=strongarm110
  64 tune-$(CONFIG_CPU_SA1100)       :=-mtune=strongarm1100
  65 tune-$(CONFIG_CPU_XSCALE)       :=$(call cc-option,-mtune=xscale,-mtune=strongarm110) -Wa,-mcpu=xscale
  66 tune-$(CONFIG_CPU_XSC3)         :=$(call cc-option,-mtune=xscale,-mtune=strongarm110) -Wa,-mcpu=xscale
  67 tune-$(CONFIG_CPU_V6)           :=$(call cc-option,-mtune=arm1136j-s,-mtune=strongarm)
  68
  69 ifeq ($(CONFIG_AEABI),y)
  70 CFLAGS_ABI      :=-mabi=aapcs-linux -mno-thumb-interwork
  71 else
  72 CFLAGS_ABI      :=$(call cc-option,-mapcs-32,-mabi=apcs-gnu) $(call cc-option,-mno-thumb-interwork,)
  73 endif
  74
  75 # Need -Uarm for gcc < 3.x
  76 CFLAGS          +=$(CFLAGS_ABI) $(arch-y) $(tune-y) $(call cc-option,-mshort-load-bytes,$(call cc-option,-malignment-traps,)) -msoft-float -Uarm
  77 AFLAGS          +=$(CFLAGS_ABI) $(arch-y) $(tune-y) -msoft-float
  78
  79 CHECKFLAGS      += -D__arm__
  80
  81 #Default value
  82 head-y          := arch/arm/kernel/head$(MMUEXT).o arch/arm/kernel/init_task.o
  83 textofs-y       := 0x00008000
  84
  85  machine-$(CONFIG_ARCH_RPC)        := rpc
  86  machine-$(CONFIG_ARCH_EBSA110)    := ebsa110
  87  machine-$(CONFIG_ARCH_CLPS7500)   := clps7500
  88   incdir-$(CONFIG_ARCH_CLPS7500)   := cl7500
  89  machine-$(CONFIG_FOOTBRIDGE)      := footbridge
  90   incdir-$(CONFIG_FOOTBRIDGE)      := ebsa285
  91  machine-$(CONFIG_ARCH_CO285)      := footbridge
  92   incdir-$(CONFIG_ARCH_CO285)      := ebsa285
  93  machine-$(CONFIG_ARCH_SHARK)      := shark
  94  machine-$(CONFIG_ARCH_SA1100)     := sa1100
  95 ifeq ($(CONFIG_ARCH_SA1100),y)
  96 # SA1111 DMA bug: we don't want the kernel to live in precious DMA-able memory
  97  textofs-$(CONFIG_SA1111)          := 0x00208000
  98 endif
  99  machine-$(CONFIG_ARCH_PXA)        := pxa
 100  machine-$(CONFIG_ARCH_L7200)      := l7200
 101  machine-$(CONFIG_ARCH_INTEGRATOR) := integrator
 102  textofs-$(CONFIG_ARCH_CLPS711X)   := 0x00028000
 103  machine-$(CONFIG_ARCH_CLPS711X)   := clps711x
 104  machine-$(CONFIG_ARCH_IOP3XX)     := iop3xx
 105  machine-$(CONFIG_ARCH_IXP4XX)     := ixp4xx
 106  machine-$(CONFIG_ARCH_IXP2000)    := ixp2000
 107  machine-$(CONFIG_ARCH_IXP23XX)    := ixp23xx
 108  machine-$(CONFIG_ARCH_OMAP1)      := omap1
 109  machine-$(CONFIG_ARCH_OMAP2)      := omap2
 110   incdir-$(CONFIG_ARCH_OMAP)       := omap
 111  machine-$(CONFIG_ARCH_S3C2410)    := s3c2410
 112  machine-$(CONFIG_ARCH_LH7A40X)    := lh7a40x
 113  machine-$(CONFIG_ARCH_VERSATILE)  := versatile
 114  machine-$(CONFIG_ARCH_IMX)        := imx
 115  machine-$(CONFIG_ARCH_H720X)      := h720x
 116  machine-$(CONFIG_ARCH_AAEC2000)   := aaec2000
 117  machine-$(CONFIG_ARCH_REALVIEW)   := realview
 118  machine-$(CONFIG_ARCH_AT91)       := at91rm9200
 119  machine-$(CONFIG_ARCH_EP93XX)     := ep93xx
 120  machine-$(CONFIG_ARCH_PNX4008)    := pnx4008
 121  machine-$(CONFIG_ARCH_NETX)       := netx
 122
 123 ifeq ($(CONFIG_ARCH_EBSA110),y)
 124 # This is what happens if you forget the IOCS16 line.
 125 # PCMCIA cards stop working.
 126 CFLAGS_3c589_cs.o :=-DISA_SIXTEEN_BIT_PERIPHERAL
 127 export CFLAGS_3c589_cs.o
 128 endif
 129
 130 # The byte offset of the kernel image in RAM from the start of RAM.
 131 TEXT_OFFSET := $(textofs-y)
 132
 133 ifeq ($(incdir-y),)
 134 incdir-y := $(machine-y)
 135 endif
 136 INCDIR   := arch-$(incdir-y)
 137
 138 ifneq ($(machine-y),)
 139 MACHINE  := arch/arm/mach-$(machine-y)/
 140 else
 141 MACHINE  :=
 142 endif
 143
 144 export  TEXT_OFFSET GZFLAGS MMUEXT
 145
 146 # Do we have FASTFPE?
 147 FASTFPE         :=arch/arm/fastfpe
 148 ifeq ($(FASTFPE),$(wildcard $(FASTFPE)))
 149 FASTFPE_OBJ     :=$(FASTFPE)/
 150 endif
 151
 152 # If we have a machine-specific directory, then include it in the build.
 153 core-y                          += arch/arm/kernel/ arch/arm/mm/ arch/arm/common/
 154 core-y                          += $(MACHINE)
 155 core-$(CONFIG_FPE_NWFPE)        += arch/arm/nwfpe/
 156 core-$(CONFIG_FPE_FASTFPE)      += $(FASTFPE_OBJ)
 157 core-$(CONFIG_VFP)              += arch/arm/vfp/
 158
 159 # If we have a common platform directory, then include it in the build.
 160 core-$(CONFIG_ARCH_OMAP)        += arch/arm/plat-omap/
 161
 162 drivers-$(CONFIG_OPROFILE)      += arch/arm/oprofile/
 163 drivers-$(CONFIG_ARCH_CLPS7500) += drivers/acorn/char/
 164 drivers-$(CONFIG_ARCH_L7200)    += drivers/acorn/char/
 165
 166 libs-y                          := arch/arm/lib/ $(libs-y)
 167
 168 # Default target when executing plain make
 169 ifeq ($(CONFIG_XIP_KERNEL),y)
 170 all: xipImage
 171 else
 172 all: zImage
 173 endif
 174
 175 boot := arch/arm/boot
 176
 177 #       Update machine arch and proc symlinks if something which affects
 178 #       them changed.  We use .arch to indicate when they were updated
 179 #       last, otherwise make uses the target directory mtime.
 180
 181 include/asm-arm/.arch: $(wildcard include/config/arch/*.h) include/config/auto.conf
 182         @echo '  SYMLINK include/asm-arm/arch -> include/asm-arm/$(INCDIR)'
 183 ifneq ($(KBUILD_SRC),)
 184         $(Q)mkdir -p include/asm-arm
 185         $(Q)ln -fsn $(srctree)/include/asm-arm/$(INCDIR) include/asm-arm/arch
 186 else
 187         $(Q)ln -fsn $(INCDIR) include/asm-arm/arch
 188 endif
 189         @touch $@
 190
 191 archprepare: maketools
 192
 193 PHONY += maketools FORCE
 194 maketools: include/linux/version.h include/asm-arm/.arch FORCE
 195         $(Q)$(MAKE) $(build)=arch/arm/tools include/asm-arm/mach-types.h
 196
 197 # Convert bzImage to zImage
 198 bzImage: zImage
 199
 200 zImage Image xipImage bootpImage uImage: vmlinux
 201         $(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $(boot)/$@
 202
 203 zinstall install: vmlinux
 204         $(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $@
 205
 206 CLEAN_FILES += include/asm-arm/mach-types.h \
 207                include/asm-arm/arch include/asm-arm/.arch
 208
 209 # We use MRPROPER_FILES and CLEAN_FILES now
 210 archclean:
 211         $(Q)$(MAKE) $(clean)=$(boot)
 212
 213 # My testing targets (bypasses dependencies)
 214 bp:;    $(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $(boot)/bootpImage
 215 i zi:;  $(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $@
 216
 217
 218 define archhelp
 219   echo  '* zImage        - Compressed kernel image (arch/$(ARCH)/boot/zImage)'
 220   echo  '  Image         - Uncompressed kernel image (arch/$(ARCH)/boot/Image)'
 221   echo  '* xipImage      - XIP kernel image, if configured (arch/$(ARCH)/boot/xipImage)'
 222   echo  '  bootpImage    - Combined zImage and initial RAM disk'
 223   echo  '                  (supply initrd image via make variable INITRD=<path>)'
 224   echo  '  install       - Install uncompressed kernel'
 225   echo  '  zinstall      - Install compressed kernel'
 226   echo  '                  Install using (your) ~/bin/installkernel or'
 227   echo  '                  (distribution) /sbin/installkernel or'
 228   echo  '                  install to $$(INSTALL_PATH) and run lilo'
 229 endef