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 = -DTEXTADDR=$(TEXTADDR) -DDATAADDR=$(DATAADDR)
  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  16 # Do not use arch/arm/defconfig - it's always outdated.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_32v5)         :=-D__LINUX_ARM_ARCH__=5 $(call cc-option,-march=armv5te,-march=armv4)
  42 arch-$(CONFIG_CPU_32v4)         :=-D__LINUX_ARM_ARCH__=4 -march=armv4
  43 arch-$(CONFIG_CPU_32v3)         :=-D__LINUX_ARM_ARCH__=3 -march=armv3
  44
  45 # This selects how we optimise for the processor.
  46 tune-$(CONFIG_CPU_ARM610)       :=-mtune=arm610
  47 tune-$(CONFIG_CPU_ARM710)       :=-mtune=arm710
  48 tune-$(CONFIG_CPU_ARM720T)      :=-mtune=arm7tdmi
  49 tune-$(CONFIG_CPU_ARM920T)      :=-mtune=arm9tdmi
  50 tune-$(CONFIG_CPU_ARM922T)      :=-mtune=arm9tdmi
  51 tune-$(CONFIG_CPU_ARM925T)      :=-mtune=arm9tdmi
  52 tune-$(CONFIG_CPU_ARM926T)      :=-mtune=arm9tdmi
  53 tune-$(CONFIG_CPU_SA110)        :=-mtune=strongarm110
  54 tune-$(CONFIG_CPU_SA1100)       :=-mtune=strongarm1100
  55 tune-$(CONFIG_CPU_XSCALE)       :=$(call cc-option,-mtune=xscale,-mtune=strongarm110) -Wa,-mcpu=xscale
  56 tune-$(CONFIG_CPU_V6)           :=-mtune=strongarm
  57
  58 # Need -Uarm for gcc < 3.x
  59 CFLAGS_ABI      :=$(call cc-option,-mapcs-32,-mabi=apcs-gnu) $(call cc-option,-mno-thumb-interwork,)
  60 CFLAGS          +=$(CFLAGS_ABI) $(arch-y) $(tune-y) $(call cc-option,-mshort-load-bytes,$(call cc-option,-malignment-traps,)) -msoft-float -Uarm
  61 AFLAGS          +=$(CFLAGS_ABI) $(arch-y) $(tune-y) -msoft-float
  62
  63 CHECKFLAGS      += -D__arm__
  64
  65 #Default value
  66 head-y          := arch/arm/kernel/head.o arch/arm/kernel/init_task.o
  67 textaddr-y      := 0xC0008000
  68
  69  machine-$(CONFIG_ARCH_RPC)        := rpc
  70  machine-$(CONFIG_ARCH_EBSA110)    := ebsa110
  71  machine-$(CONFIG_ARCH_CLPS7500)   := clps7500
  72   incdir-$(CONFIG_ARCH_CLPS7500)   := cl7500
  73  machine-$(CONFIG_FOOTBRIDGE)      := footbridge
  74   incdir-$(CONFIG_FOOTBRIDGE)      := ebsa285
  75 textaddr-$(CONFIG_ARCH_CO285)      := 0x60008000
  76  machine-$(CONFIG_ARCH_CO285)      := footbridge
  77   incdir-$(CONFIG_ARCH_CO285)      := ebsa285
  78  machine-$(CONFIG_ARCH_SHARK)      := shark
  79  machine-$(CONFIG_ARCH_SA1100)     := sa1100
  80 ifeq ($(CONFIG_ARCH_SA1100),y)
  81 # SA1111 DMA bug: we don't want the kernel to live in precious DMA-able memory
  82 textaddr-$(CONFIG_SA1111)          := 0xc0208000
  83 endif
  84  machine-$(CONFIG_ARCH_PXA)        := pxa
  85  machine-$(CONFIG_ARCH_L7200)      := l7200
  86  machine-$(CONFIG_ARCH_INTEGRATOR) := integrator
  87  machine-$(CONFIG_ARCH_CAMELOT)    := epxa10db
  88 textaddr-$(CONFIG_ARCH_CLPS711X)   := 0xc0028000
  89  machine-$(CONFIG_ARCH_CLPS711X)   := clps711x
  90 textaddr-$(CONFIG_ARCH_FORTUNET)   := 0xc0008000
  91  machine-$(CONFIG_ARCH_IOP3XX)     := iop3xx
  92  machine-$(CONFIG_ARCH_IXP4XX)     := ixp4xx
  93  machine-$(CONFIG_ARCH_IXP2000)    := ixp2000
  94  machine-$(CONFIG_ARCH_OMAP1)      := omap1
  95   incdir-$(CONFIG_ARCH_OMAP)       := omap
  96  machine-$(CONFIG_ARCH_S3C2410)    := s3c2410
  97  machine-$(CONFIG_ARCH_LH7A40X)    := lh7a40x
  98  machine-$(CONFIG_ARCH_VERSATILE)  := versatile
  99  machine-$(CONFIG_ARCH_IMX)        := imx
 100  machine-$(CONFIG_ARCH_H720X)      := h720x
 101  machine-$(CONFIG_ARCH_AAEC2000)   := aaec2000
 102
 103 ifeq ($(CONFIG_ARCH_EBSA110),y)
 104 # This is what happens if you forget the IOCS16 line.
 105 # PCMCIA cards stop working.
 106 CFLAGS_3c589_cs.o :=-DISA_SIXTEEN_BIT_PERIPHERAL
 107 export CFLAGS_3c589_cs.o
 108 endif
 109
 110 TEXTADDR := $(textaddr-y)
 111 ifeq ($(CONFIG_XIP_KERNEL),y)
 112   DATAADDR := $(TEXTADDR)
 113   xipaddr-$(CONFIG_ARCH_CO285) := 0x5f000000
 114   xipaddr-y ?= 0xbf000000
 115   # Replace phys addr with virt addr while keeping offset from base.
 116   TEXTADDR := $(shell echo $(CONFIG_XIP_PHYS_ADDR) $(xipaddr-y) | \
 117                       awk --non-decimal-data '/[:xdigit:]/ \
 118                           { printf("0x%x\n", and($$1, 0x000fffff) + $$2) }' )
 119 endif
 120
 121 ifeq ($(incdir-y),)
 122 incdir-y := $(machine-y)
 123 endif
 124 INCDIR   := arch-$(incdir-y)
 125 ifneq ($(machine-y),)
 126 MACHINE  := arch/arm/mach-$(machine-y)/
 127 else
 128 MACHINE  :=
 129 endif
 130
 131 export  TEXTADDR DATAADDR GZFLAGS
 132
 133 # Do we have FASTFPE?
 134 FASTFPE         :=arch/arm/fastfpe
 135 ifeq ($(FASTFPE),$(wildcard $(FASTFPE)))
 136 FASTFPE_OBJ     :=$(FASTFPE)/
 137 endif
 138
 139 # If we have a machine-specific directory, then include it in the build.
 140 core-y                          += arch/arm/kernel/ arch/arm/mm/ arch/arm/common/
 141 core-y                          += $(MACHINE)
 142 core-$(CONFIG_FPE_NWFPE)        += arch/arm/nwfpe/
 143 core-$(CONFIG_FPE_FASTFPE)      += $(FASTFPE_OBJ)
 144 core-$(CONFIG_VFP)              += arch/arm/vfp/
 145
 146 # If we have a common platform directory, then include it in the build.
 147 core-$(CONFIG_ARCH_OMAP)        += arch/arm/plat-omap/
 148
 149 drivers-$(CONFIG_OPROFILE)      += arch/arm/oprofile/
 150 drivers-$(CONFIG_ARCH_CLPS7500) += drivers/acorn/char/
 151 drivers-$(CONFIG_ARCH_L7200)    += drivers/acorn/char/
 152
 153 libs-y                          += arch/arm/lib/
 154
 155 # Default target when executing plain make
 156 ifeq ($(CONFIG_XIP_KERNEL),y)
 157 all: xipImage
 158 else
 159 all: zImage
 160 endif
 161
 162 boot := arch/arm/boot
 163
 164 #       Update machine arch and proc symlinks if something which affects
 165 #       them changed.  We use .arch to indicate when they were updated
 166 #       last, otherwise make uses the target directory mtime.
 167
 168 include/asm-arm/.arch: $(wildcard include/config/arch/*.h) include/config/MARKER
 169         @echo '  SYMLINK include/asm-arm/arch -> include/asm-arm/$(INCDIR)'
 170 ifneq ($(KBUILD_SRC),)
 171         $(Q)mkdir -p include/asm-arm
 172         $(Q)ln -fsn $(srctree)/include/asm-arm/$(INCDIR) include/asm-arm/arch
 173 else
 174         $(Q)ln -fsn $(INCDIR) include/asm-arm/arch
 175 endif
 176         @touch $@
 177
 178 prepare: maketools include/asm-arm/.arch
 179
 180 .PHONY: maketools FORCE
 181 maketools: include/asm-arm/constants.h include/linux/version.h FORCE
 182         $(Q)$(MAKE) $(build)=arch/arm/tools include/asm-arm/mach-types.h
 183
 184 # Convert bzImage to zImage
 185 bzImage: zImage
 186
 187 zImage Image xipImage bootpImage uImage: vmlinux
 188         $(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $(boot)/$@
 189
 190 zinstall install: vmlinux
 191         $(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $@
 192
 193 CLEAN_FILES += include/asm-arm/constants.h* include/asm-arm/mach-types.h \
 194                include/asm-arm/arch include/asm-arm/.arch
 195
 196 # We use MRPROPER_FILES and CLEAN_FILES now
 197 archclean:
 198         $(Q)$(MAKE) $(clean)=$(boot)
 199
 200 # My testing targets (bypasses dependencies)
 201 bp:;    $(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $(boot)/bootpImage
 202 i zi:;  $(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $@
 203
 204 arch/$(ARCH)/kernel/asm-offsets.s: include/asm include/linux/version.h \
 205                                    include/asm-arm/.arch
 206
 207 include/asm-$(ARCH)/constants.h: arch/$(ARCH)/kernel/asm-offsets.s
 208         $(call filechk,gen-asm-offsets)
 209
 210 define archhelp
 211   echo  '* zImage        - Compressed kernel image (arch/$(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