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=$(TEXT_OFFSET)
  15 OBJCOPYFLAGS    :=-O binary -R .note -R .comment -S
  16 GZFLAGS         :=-9
  17 #CFLAGS         +=-pipe
  18 # Explicitly specifiy 32-bit ARM ISA since toolchain default can be -mthumb:
  19 CFLAGS          +=$(call cc-option,-marm,)
  20
  21 # Do not use arch/arm/defconfig - it's always outdated.
  22 # Select a platform tht is kept up-to-date
  23 KBUILD_DEFCONFIG := versatile_defconfig
  24
  25 # defines filename extension depending memory manement type.
  26 ifeq ($(CONFIG_MMU),)
  27 MMUEXT          := -nommu
  28 endif
  29
  30 ifeq ($(CONFIG_FRAME_POINTER),y)
  31 CFLAGS          +=-fno-omit-frame-pointer -mapcs -mno-sched-prolog
  32 endif
  33
  34 ifeq ($(CONFIG_CPU_BIG_ENDIAN),y)
  35 CPPFLAGS        += -mbig-endian
  36 AS              += -EB
  37 LD              += -EB
  38 else
  39 CPPFLAGS        += -mlittle-endian
  40 AS              += -EL
  41 LD              += -EL
  42 endif
  43
  44 comma = ,
  45
  46 # This selects which instruction set is used.
  47 # Note that GCC does not numerically define an architecture version
  48 # macro, but instead defines a whole series of macros which makes
  49 # testing for a specific architecture or later rather impossible.
  50 arch-$(CONFIG_CPU_32v6)         :=-D__LINUX_ARM_ARCH__=6 $(call cc-option,-march=armv6,-march=armv5t -Wa$(comma)-march=armv6)
  51 arch-$(CONFIG_CPU_32v6K)        :=-D__LINUX_ARM_ARCH__=6 $(call cc-option,-march=armv6k,-march=armv5t -Wa$(comma)-march=armv6k)
  52 arch-$(CONFIG_CPU_32v5)         :=-D__LINUX_ARM_ARCH__=5 $(call cc-option,-march=armv5te,-march=armv4t)
  53 arch-$(CONFIG_CPU_32v4T)        :=-D__LINUX_ARM_ARCH__=4 -march=armv4t
  54 arch-$(CONFIG_CPU_32v4)         :=-D__LINUX_ARM_ARCH__=4 -march=armv4
  55 arch-$(CONFIG_CPU_32v3)         :=-D__LINUX_ARM_ARCH__=3 -march=armv3
  56
  57 # This selects how we optimise for the processor.
  58 tune-$(CONFIG_CPU_ARM610)       :=-mtune=arm610
  59 tune-$(CONFIG_CPU_ARM710)       :=-mtune=arm710
  60 tune-$(CONFIG_CPU_ARM7TDMI)     :=-mtune=arm7tdmi
  61 tune-$(CONFIG_CPU_ARM720T)      :=-mtune=arm7tdmi
  62 tune-$(CONFIG_CPU_ARM740T)      :=-mtune=arm7tdmi
  63 tune-$(CONFIG_CPU_ARM9TDMI)     :=-mtune=arm9tdmi
  64 tune-$(CONFIG_CPU_ARM940T)      :=-mtune=arm9tdmi
  65 tune-$(CONFIG_CPU_ARM946T)      :=$(call cc-option,-mtune=arm9e,-mtune=arm9tdmi)
  66 tune-$(CONFIG_CPU_ARM920T)      :=-mtune=arm9tdmi
  67 tune-$(CONFIG_CPU_ARM922T)      :=-mtune=arm9tdmi
  68 tune-$(CONFIG_CPU_ARM925T)      :=-mtune=arm9tdmi
  69 tune-$(CONFIG_CPU_ARM926T)      :=-mtune=arm9tdmi
  70 tune-$(CONFIG_CPU_SA110)        :=-mtune=strongarm110
  71 tune-$(CONFIG_CPU_SA1100)       :=-mtune=strongarm1100
  72 tune-$(CONFIG_CPU_XSCALE)       :=$(call cc-option,-mtune=xscale,-mtune=strongarm110) -Wa,-mcpu=xscale
  73 tune-$(CONFIG_CPU_XSC3)         :=$(call cc-option,-mtune=xscale,-mtune=strongarm110) -Wa,-mcpu=xscale
  74 tune-$(CONFIG_CPU_V6)           :=$(call cc-option,-mtune=arm1136j-s,-mtune=strongarm)
  75
  76 ifeq ($(CONFIG_AEABI),y)
  77 CFLAGS_ABI      :=-mabi=aapcs-linux -mno-thumb-interwork
  78 else
  79 CFLAGS_ABI      :=$(call cc-option,-mapcs-32,-mabi=apcs-gnu) $(call cc-option,-mno-thumb-interwork,)
  80 endif
  81
  82 # Need -Uarm for gcc < 3.x
  83 CFLAGS          +=$(CFLAGS_ABI) $(arch-y) $(tune-y) $(call cc-option,-mshort-load-bytes,$(call cc-option,-malignment-traps,)) -msoft-float -Uarm
  84 AFLAGS          +=$(CFLAGS_ABI) $(arch-y) $(tune-y) -msoft-float
  85
  86 CHECKFLAGS      += -D__arm__
  87
  88 #Default value
  89 head-y          := arch/arm/kernel/head$(MMUEXT).o arch/arm/kernel/init_task.o
  90 textofs-y       := 0x00008000
  91
  92  machine-$(CONFIG_ARCH_RPC)        := rpc
  93  machine-$(CONFIG_ARCH_EBSA110)    := ebsa110
  94  machine-$(CONFIG_ARCH_CLPS7500)   := clps7500
  95   incdir-$(CONFIG_ARCH_CLPS7500)   := cl7500
  96  machine-$(CONFIG_FOOTBRIDGE)      := footbridge
  97   incdir-$(CONFIG_FOOTBRIDGE)      := ebsa285
  98  machine-$(CONFIG_ARCH_CO285)      := footbridge
  99   incdir-$(CONFIG_ARCH_CO285)      := ebsa285
 100  machine-$(CONFIG_ARCH_SHARK)      := shark
 101  machine-$(CONFIG_ARCH_SA1100)     := sa1100
 102 ifeq ($(CONFIG_ARCH_SA1100),y)
 103 # SA1111 DMA bug: we don't want the kernel to live in precious DMA-able memory
 104  textofs-$(CONFIG_SA1111)          := 0x00208000
 105 endif
 106  machine-$(CONFIG_ARCH_PXA)        := pxa
 107  machine-$(CONFIG_ARCH_L7200)      := l7200
 108  machine-$(CONFIG_ARCH_INTEGRATOR) := integrator
 109  textofs-$(CONFIG_ARCH_CLPS711X)   := 0x00028000
 110  machine-$(CONFIG_ARCH_CLPS711X)   := clps711x
 111  machine-$(CONFIG_ARCH_IOP32X)     := iop32x
 112  machine-$(CONFIG_ARCH_IOP33X)     := iop33x
 113  machine-$(CONFIG_ARCH_IOP13XX)    := iop13xx
 114  machine-$(CONFIG_ARCH_IXP4XX)     := ixp4xx
 115  machine-$(CONFIG_ARCH_IXP2000)    := ixp2000
 116  machine-$(CONFIG_ARCH_IXP23XX)    := ixp23xx
 117  machine-$(CONFIG_ARCH_OMAP1)      := omap1
 118  machine-$(CONFIG_ARCH_OMAP2)      := omap2
 119   incdir-$(CONFIG_ARCH_OMAP)       := omap
 120  machine-$(CONFIG_ARCH_S3C2410)    := s3c2410
 121  machine-$(CONFIG_ARCH_LH7A40X)    := lh7a40x
 122  machine-$(CONFIG_ARCH_VERSATILE)  := versatile
 123  machine-$(CONFIG_ARCH_IMX)        := imx
 124  machine-$(CONFIG_ARCH_H720X)      := h720x
 125  machine-$(CONFIG_ARCH_AAEC2000)   := aaec2000
 126  machine-$(CONFIG_ARCH_REALVIEW)   := realview
 127  machine-$(CONFIG_ARCH_AT91)       := at91rm9200
 128  machine-$(CONFIG_ARCH_EP93XX)     := ep93xx
 129  machine-$(CONFIG_ARCH_PNX4008)    := pnx4008
 130  machine-$(CONFIG_ARCH_NETX)       := netx
 131
 132 ifeq ($(CONFIG_ARCH_EBSA110),y)
 133 # This is what happens if you forget the IOCS16 line.
 134 # PCMCIA cards stop working.
 135 CFLAGS_3c589_cs.o :=-DISA_SIXTEEN_BIT_PERIPHERAL
 136 export CFLAGS_3c589_cs.o
 137 endif
 138
 139 # The byte offset of the kernel image in RAM from the start of RAM.
 140 TEXT_OFFSET := $(textofs-y)
 141
 142 ifeq ($(incdir-y),)
 143 incdir-y := $(machine-y)
 144 endif
 145 INCDIR   := arch-$(incdir-y)
 146
 147 ifneq ($(machine-y),)
 148 MACHINE  := arch/arm/mach-$(machine-y)/
 149 else
 150 MACHINE  :=
 151 endif
 152
 153 export  TEXT_OFFSET GZFLAGS MMUEXT
 154
 155 # Do we have FASTFPE?
 156 FASTFPE         :=arch/arm/fastfpe
 157 ifeq ($(FASTFPE),$(wildcard $(FASTFPE)))
 158 FASTFPE_OBJ     :=$(FASTFPE)/
 159 endif
 160
 161 # If we have a machine-specific directory, then include it in the build.
 162 core-y                          += arch/arm/kernel/ arch/arm/mm/ arch/arm/common/
 163 core-y                          += $(MACHINE)
 164 core-$(CONFIG_FPE_NWFPE)        += arch/arm/nwfpe/
 165 core-$(CONFIG_FPE_FASTFPE)      += $(FASTFPE_OBJ)
 166 core-$(CONFIG_VFP)              += arch/arm/vfp/
 167
 168 # If we have a common platform directory, then include it in the build.
 169 core-$(CONFIG_PLAT_IOP)         += arch/arm/plat-iop/
 170 core-$(CONFIG_ARCH_OMAP)        += arch/arm/plat-omap/
 171
 172 drivers-$(CONFIG_OPROFILE)      += arch/arm/oprofile/
 173 drivers-$(CONFIG_ARCH_CLPS7500) += drivers/acorn/char/
 174 drivers-$(CONFIG_ARCH_L7200)    += drivers/acorn/char/
 175
 176 libs-y                          := arch/arm/lib/ $(libs-y)
 177
 178 # Default target when executing plain make
 179 ifeq ($(CONFIG_XIP_KERNEL),y)
 180 KBUILD_IMAGE := xipImage
 181 else
 182 KBUILD_IMAGE := zImage
 183 endif
 184
 185 all:    $(KBUILD_IMAGE)
 186
 187 boot := arch/arm/boot
 188
 189 #       Update machine arch and proc symlinks if something which affects
 190 #       them changed.  We use .arch to indicate when they were updated
 191 #       last, otherwise make uses the target directory mtime.
 192
 193 include/asm-arm/.arch: $(wildcard include/config/arch/*.h) include/config/auto.conf
 194         @echo '  SYMLINK include/asm-arm/arch -> include/asm-arm/$(INCDIR)'
 195 ifneq ($(KBUILD_SRC),)
 196         $(Q)mkdir -p include/asm-arm
 197         $(Q)ln -fsn $(srctree)/include/asm-arm/$(INCDIR) include/asm-arm/arch
 198 else
 199         $(Q)ln -fsn $(INCDIR) include/asm-arm/arch
 200 endif
 201         @touch $@
 202
 203 archprepare: maketools
 204
 205 PHONY += maketools FORCE
 206 maketools: include/linux/version.h include/asm-arm/.arch FORCE
 207         $(Q)$(MAKE) $(build)=arch/arm/tools include/asm-arm/mach-types.h
 208
 209 # Convert bzImage to zImage
 210 bzImage: zImage
 211
 212 zImage Image xipImage bootpImage uImage: vmlinux
 213         $(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $(boot)/$@
 214
 215 zinstall install: vmlinux
 216         $(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $@
 217
 218 CLEAN_FILES += include/asm-arm/mach-types.h \
 219                include/asm-arm/arch include/asm-arm/.arch
 220
 221 # We use MRPROPER_FILES and CLEAN_FILES now
 222 archclean:
 223         $(Q)$(MAKE) $(clean)=$(boot)
 224
 225 # My testing targets (bypasses dependencies)
 226 bp:;    $(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $(boot)/bootpImage
 227 i zi:;  $(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $@
 228
 229
 230 define archhelp
 231   echo  '* zImage        - Compressed kernel image (arch/$(ARCH)/boot/zImage)'
 232   echo  '  Image         - Uncompressed kernel image (arch/$(ARCH)/boot/Image)'
 233   echo  '* xipImage      - XIP kernel image, if configured (arch/$(ARCH)/boot/xipImage)'
 234   echo  '  bootpImage    - Combined zImage and initial RAM disk'
 235   echo  '                  (supply initrd image via make variable INITRD=<path>)'
 236   echo  '  install       - Install uncompressed kernel'
 237   echo  '  zinstall      - Install compressed kernel'
 238   echo  '                  Install using (your) ~/bin/installkernel or'
 239   echo  '                  (distribution) /sbin/installkernel or'
 240   echo  '                  install to $$(INSTALL_PATH) and run lilo'
 241 endef