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  19 # Do not use arch/arm/defconfig - it's always outdated.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-$(CONFIG_CPU_XSC3)         :=$(call cc-option,-mtune=xscale,-mtune=strongarm110) -Wa,-mcpu=xscale
  61 tune-$(CONFIG_CPU_V6)           :=$(call cc-option,-mtune=arm1136j-s,-mtune=strongarm)
  62
  63 ifeq ($(CONFIG_AEABI),y)
  64 CFLAGS_ABI      :=-mabi=aapcs -mno-thumb-interwork
  65 else
  66 CFLAGS_ABI      :=$(call cc-option,-mapcs-32,-mabi=apcs-gnu) $(call cc-option,-mno-thumb-interwork,)
  67 endif
  68
  69 # Need -Uarm for gcc < 3.x
  70 CFLAGS          +=$(CFLAGS_ABI) $(arch-y) $(tune-y) $(call cc-option,-mshort-load-bytes,$(call cc-option,-malignment-traps,)) -msoft-float -Uarm
  71 AFLAGS          +=$(CFLAGS_ABI) $(arch-y) $(tune-y) -msoft-float
  72
  73 CHECKFLAGS      += -D__arm__
  74
  75 #Default value
  76 head-y          := arch/arm/kernel/head.o arch/arm/kernel/init_task.o
  77 textofs-y       := 0x00008000
  78
  79  machine-$(CONFIG_ARCH_RPC)        := rpc
  80  machine-$(CONFIG_ARCH_EBSA110)    := ebsa110
  81  machine-$(CONFIG_ARCH_CLPS7500)   := clps7500
  82   incdir-$(CONFIG_ARCH_CLPS7500)   := cl7500
  83  machine-$(CONFIG_FOOTBRIDGE)      := footbridge
  84   incdir-$(CONFIG_FOOTBRIDGE)      := ebsa285
  85  machine-$(CONFIG_ARCH_CO285)      := footbridge
  86   incdir-$(CONFIG_ARCH_CO285)      := ebsa285
  87  machine-$(CONFIG_ARCH_SHARK)      := shark
  88  machine-$(CONFIG_ARCH_SA1100)     := sa1100
  89 ifeq ($(CONFIG_ARCH_SA1100),y)
  90 # SA1111 DMA bug: we don't want the kernel to live in precious DMA-able memory
  91  textofs-$(CONFIG_SA1111)          := 0x00208000
  92 endif
  93  machine-$(CONFIG_ARCH_PXA)        := pxa
  94  machine-$(CONFIG_ARCH_L7200)      := l7200
  95  machine-$(CONFIG_ARCH_INTEGRATOR) := integrator
  96  textofs-$(CONFIG_ARCH_CLPS711X)   := 0x00028000
  97  machine-$(CONFIG_ARCH_CLPS711X)   := clps711x
  98  machine-$(CONFIG_ARCH_IOP3XX)     := iop3xx
  99  machine-$(CONFIG_ARCH_IXP4XX)     := ixp4xx
 100  machine-$(CONFIG_ARCH_IXP2000)    := ixp2000
 101  machine-$(CONFIG_ARCH_IXP23XX)    := ixp23xx
 102  machine-$(CONFIG_ARCH_OMAP1)      := omap1
 103  machine-$(CONFIG_ARCH_OMAP2)      := omap2
 104   incdir-$(CONFIG_ARCH_OMAP)       := omap
 105  machine-$(CONFIG_ARCH_S3C2410)    := s3c2410
 106  machine-$(CONFIG_ARCH_LH7A40X)    := lh7a40x
 107  machine-$(CONFIG_ARCH_VERSATILE)  := versatile
 108  machine-$(CONFIG_ARCH_IMX)        := imx
 109  machine-$(CONFIG_ARCH_H720X)      := h720x
 110  machine-$(CONFIG_ARCH_AAEC2000)   := aaec2000
 111  machine-$(CONFIG_ARCH_REALVIEW)   := realview
 112  machine-$(CONFIG_ARCH_AT91RM9200) := at91rm9200
 113  machine-$(CONFIG_ARCH_EP93XX)     := ep93xx
 114
 115 ifeq ($(CONFIG_ARCH_EBSA110),y)
 116 # This is what happens if you forget the IOCS16 line.
 117 # PCMCIA cards stop working.
 118 CFLAGS_3c589_cs.o :=-DISA_SIXTEEN_BIT_PERIPHERAL
 119 export CFLAGS_3c589_cs.o
 120 endif
 121
 122 # The byte offset of the kernel image in RAM from the start of RAM.
 123 TEXT_OFFSET := $(textofs-y)
 124
 125 ifeq ($(incdir-y),)
 126 incdir-y := $(machine-y)
 127 endif
 128 INCDIR   := arch-$(incdir-y)
 129
 130 ifneq ($(machine-y),)
 131 MACHINE  := arch/arm/mach-$(machine-y)/
 132 else
 133 MACHINE  :=
 134 endif
 135
 136 export  TEXT_OFFSET GZFLAGS
 137
 138 # Do we have FASTFPE?
 139 FASTFPE         :=arch/arm/fastfpe
 140 ifeq ($(FASTFPE),$(wildcard $(FASTFPE)))
 141 FASTFPE_OBJ     :=$(FASTFPE)/
 142 endif
 143
 144 # If we have a machine-specific directory, then include it in the build.
 145 core-y                          += arch/arm/kernel/ arch/arm/mm/ arch/arm/common/
 146 core-y                          += $(MACHINE)
 147 core-$(CONFIG_FPE_NWFPE)        += arch/arm/nwfpe/
 148 core-$(CONFIG_FPE_FASTFPE)      += $(FASTFPE_OBJ)
 149 core-$(CONFIG_VFP)              += arch/arm/vfp/
 150
 151 # If we have a common platform directory, then include it in the build.
 152 core-$(CONFIG_ARCH_OMAP)        += arch/arm/plat-omap/
 153
 154 drivers-$(CONFIG_OPROFILE)      += arch/arm/oprofile/
 155 drivers-$(CONFIG_ARCH_CLPS7500) += drivers/acorn/char/
 156 drivers-$(CONFIG_ARCH_L7200)    += drivers/acorn/char/
 157
 158 libs-y                          := arch/arm/lib/ $(libs-y)
 159
 160 # Default target when executing plain make
 161 ifeq ($(CONFIG_XIP_KERNEL),y)
 162 all: xipImage
 163 else
 164 all: zImage
 165 endif
 166
 167 boot := arch/arm/boot
 168
 169 #       Update machine arch and proc symlinks if something which affects
 170 #       them changed.  We use .arch to indicate when they were updated
 171 #       last, otherwise make uses the target directory mtime.
 172
 173 include/asm-arm/.arch: $(wildcard include/config/arch/*.h) include/config/MARKER
 174         @echo '  SYMLINK include/asm-arm/arch -> include/asm-arm/$(INCDIR)'
 175 ifneq ($(KBUILD_SRC),)
 176         $(Q)mkdir -p include/asm-arm
 177         $(Q)ln -fsn $(srctree)/include/asm-arm/$(INCDIR) include/asm-arm/arch
 178 else
 179         $(Q)ln -fsn $(INCDIR) include/asm-arm/arch
 180 endif
 181         @touch $@
 182
 183 archprepare: maketools
 184
 185 PHONY += maketools FORCE
 186 maketools: include/linux/version.h include/asm-arm/.arch FORCE
 187         $(Q)$(MAKE) $(build)=arch/arm/tools include/asm-arm/mach-types.h
 188
 189 # Convert bzImage to zImage
 190 bzImage: zImage
 191
 192 zImage Image xipImage bootpImage uImage: vmlinux
 193         $(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $(boot)/$@
 194
 195 zinstall install: vmlinux
 196         $(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $@
 197
 198 CLEAN_FILES += include/asm-arm/mach-types.h \
 199                include/asm-arm/arch include/asm-arm/.arch
 200
 201 # We use MRPROPER_FILES and CLEAN_FILES now
 202 archclean:
 203         $(Q)$(MAKE) $(clean)=$(boot)
 204
 205 # My testing targets (bypasses dependencies)
 206 bp:;    $(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $(boot)/bootpImage
 207 i zi:;  $(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $@
 208
 209
 210 define archhelp
 211   echo  '* zImage        - Compressed kernel image (arch/$(ARCH)/boot/zImage)'
 212   echo  '  Image         - Uncompressed kernel image (arch/$(ARCH)/boot/Image)'
 213   echo  '* xipImage      - XIP kernel image, if configured (arch/$(ARCH)/boot/xipImage)'
 214   echo  '  bootpImage    - Combined zImage and initial RAM disk'
 215   echo  '                  (supply initrd image via make variable INITRD=<path>)'
 216   echo  '  install       - Install uncompressed kernel'
 217   echo  '  zinstall      - Install compressed kernel'
 218   echo  '                  Install using (your) ~/bin/installkernel or'
 219   echo  '                  (distribution) /sbin/installkernel or'
 220   echo  '                  install to $$(INSTALL_PATH) and run lilo'
 221 endef