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 ifeq ($(CONFIG_CPU_ENDIAN_BE8),y)
  15 LDFLAGS_vmlinux += --be8
  16 endif
  17
  18 OBJCOPYFLAGS    :=-O binary -R .note -R .note.gnu.build-id -R .comment -S
  19 GZFLAGS         :=-9
  20 #KBUILD_CFLAGS  +=-pipe
  21 # Explicitly specifiy 32-bit ARM ISA since toolchain default can be -mthumb:
  22 KBUILD_CFLAGS   +=$(call cc-option,-marm,)
  23
  24 # Do not use arch/arm/defconfig - it's always outdated.
  25 # Select a platform tht is kept up-to-date
  26 KBUILD_DEFCONFIG := versatile_defconfig
  27
  28 # defines filename extension depending memory management type.
  29 ifeq ($(CONFIG_MMU),)
  30 MMUEXT          := -nommu
  31 endif
  32
  33 ifeq ($(CONFIG_FRAME_POINTER),y)
  34 KBUILD_CFLAGS   +=-fno-omit-frame-pointer -mapcs -mno-sched-prolog
  35 endif
  36
  37 ifeq ($(CONFIG_CPU_BIG_ENDIAN),y)
  38 KBUILD_CPPFLAGS += -mbig-endian
  39 AS              += -EB
  40 LD              += -EB
  41 else
  42 KBUILD_CPPFLAGS += -mlittle-endian
  43 AS              += -EL
  44 LD              += -EL
  45 endif
  46
  47 comma = ,
  48
  49 # This selects which instruction set is used.
  50 # Note that GCC does not numerically define an architecture version
  51 # macro, but instead defines a whole series of macros which makes
  52 # testing for a specific architecture or later rather impossible.
  53 arch-$(CONFIG_CPU_32v7)         :=-D__LINUX_ARM_ARCH__=7 $(call cc-option,-march=armv7-a,-march=armv5t -Wa$(comma)-march=armv7-a)
  54 arch-$(CONFIG_CPU_32v6)         :=-D__LINUX_ARM_ARCH__=6 $(call cc-option,-march=armv6,-march=armv5t -Wa$(comma)-march=armv6)
  55 # Only override the compiler option if ARMv6. The ARMv6K extensions are
  56 # always available in ARMv7
  57 ifeq ($(CONFIG_CPU_32v6),y)
  58 arch-$(CONFIG_CPU_32v6K)        :=-D__LINUX_ARM_ARCH__=6 $(call cc-option,-march=armv6k,-march=armv5t -Wa$(comma)-march=armv6k)
  59 endif
  60 arch-$(CONFIG_CPU_32v5)         :=-D__LINUX_ARM_ARCH__=5 $(call cc-option,-march=armv5te,-march=armv4t)
  61 arch-$(CONFIG_CPU_32v4T)        :=-D__LINUX_ARM_ARCH__=4 -march=armv4t
  62 arch-$(CONFIG_CPU_32v4)         :=-D__LINUX_ARM_ARCH__=4 -march=armv4
  63 arch-$(CONFIG_CPU_32v3)         :=-D__LINUX_ARM_ARCH__=3 -march=armv3
  64
  65 # This selects how we optimise for the processor.
  66 tune-$(CONFIG_CPU_ARM610)       :=-mtune=arm610
  67 tune-$(CONFIG_CPU_ARM710)       :=-mtune=arm710
  68 tune-$(CONFIG_CPU_ARM7TDMI)     :=-mtune=arm7tdmi
  69 tune-$(CONFIG_CPU_ARM720T)      :=-mtune=arm7tdmi
  70 tune-$(CONFIG_CPU_ARM740T)      :=-mtune=arm7tdmi
  71 tune-$(CONFIG_CPU_ARM9TDMI)     :=-mtune=arm9tdmi
  72 tune-$(CONFIG_CPU_ARM940T)      :=-mtune=arm9tdmi
  73 tune-$(CONFIG_CPU_ARM946E)      :=$(call cc-option,-mtune=arm9e,-mtune=arm9tdmi)
  74 tune-$(CONFIG_CPU_ARM920T)      :=-mtune=arm9tdmi
  75 tune-$(CONFIG_CPU_ARM922T)      :=-mtune=arm9tdmi
  76 tune-$(CONFIG_CPU_ARM925T)      :=-mtune=arm9tdmi
  77 tune-$(CONFIG_CPU_ARM926T)      :=-mtune=arm9tdmi
  78 tune-$(CONFIG_CPU_FA526)        :=-mtune=arm9tdmi
  79 tune-$(CONFIG_CPU_SA110)        :=-mtune=strongarm110
  80 tune-$(CONFIG_CPU_SA1100)       :=-mtune=strongarm1100
  81 tune-$(CONFIG_CPU_XSCALE)       :=$(call cc-option,-mtune=xscale,-mtune=strongarm110) -Wa,-mcpu=xscale
  82 tune-$(CONFIG_CPU_XSC3)         :=$(call cc-option,-mtune=xscale,-mtune=strongarm110) -Wa,-mcpu=xscale
  83 tune-$(CONFIG_CPU_FEROCEON)     :=$(call cc-option,-mtune=marvell-f,-mtune=xscale)
  84 tune-$(CONFIG_CPU_V6)           :=$(call cc-option,-mtune=arm1136j-s,-mtune=strongarm)
  85
  86 ifeq ($(CONFIG_AEABI),y)
  87 CFLAGS_ABI      :=-mabi=aapcs-linux -mno-thumb-interwork
  88 else
  89 CFLAGS_ABI      :=$(call cc-option,-mapcs-32,-mabi=apcs-gnu) $(call cc-option,-mno-thumb-interwork,)
  90 endif
  91
  92 ifeq ($(CONFIG_ARM_UNWIND),y)
  93 CFLAGS_ABI      +=-funwind-tables
  94 endif
  95
  96 ifeq ($(CONFIG_THUMB2_KERNEL),y)
  97 AFLAGS_AUTOIT   :=$(call as-option,-Wa$(comma)-mimplicit-it=thumb,-Wa$(comma)-mauto-it)
  98 AFLAGS_NOWARN   :=$(call as-option,-Wa$(comma)-mno-warn-deprecated,-Wa$(comma)-W)
  99 CFLAGS_THUMB2   :=-mthumb $(AFLAGS_AUTOIT) $(AFLAGS_NOWARN)
 100 AFLAGS_THUMB2   :=$(CFLAGS_THUMB2) -Wa$(comma)-mthumb
 101 endif
 102
 103 # Need -Uarm for gcc < 3.x
 104 KBUILD_CFLAGS   +=$(CFLAGS_ABI) $(CFLAGS_THUMB2) $(arch-y) $(tune-y) $(call cc-option,-mshort-load-bytes,$(call cc-option,-malignment-traps,)) -msoft-float -Uarm
 105 KBUILD_AFLAGS   +=$(CFLAGS_ABI) $(AFLAGS_THUMB2) $(arch-y) $(tune-y) -include asm/unified.h -msoft-float
 106
 107 CHECKFLAGS      += -D__arm__
 108
 109 #Default value
 110 head-y          := arch/arm/kernel/head$(MMUEXT).o arch/arm/kernel/init_task.o
 111 textofs-y       := 0x00008000
 112 textofs-$(CONFIG_ARCH_CLPS711X) := 0x00028000
 113 # SA1111 DMA bug: we don't want the kernel to live in precious DMA-able memory
 114 ifeq ($(CONFIG_ARCH_SA1100),y)
 115 textofs-$(CONFIG_SA1111) := 0x00208000
 116 endif
 117
 118 # Machine directory name.  This list is sorted alphanumerically
 119 # by CONFIG_* macro name.
 120 machine-$(CONFIG_ARCH_AAEC2000)         := aaec2000
 121 machine-$(CONFIG_ARCH_AT91)             := at91
 122 machine-$(CONFIG_ARCH_BCMRING)          := bcmring
 123 machine-$(CONFIG_ARCH_CLPS711X)         := clps711x
 124 machine-$(CONFIG_ARCH_DAVINCI)          := davinci
 125 machine-$(CONFIG_ARCH_EBSA110)          := ebsa110
 126 machine-$(CONFIG_ARCH_EP93XX)           := ep93xx
 127 machine-$(CONFIG_ARCH_GEMINI)           := gemini
 128 machine-$(CONFIG_ARCH_H720X)            := h720x
 129 machine-$(CONFIG_ARCH_INTEGRATOR)       := integrator
 130 machine-$(CONFIG_ARCH_IOP13XX)          := iop13xx
 131 machine-$(CONFIG_ARCH_IOP32X)           := iop32x
 132 machine-$(CONFIG_ARCH_IOP33X)           := iop33x
 133 machine-$(CONFIG_ARCH_IXP2000)          := ixp2000
 134 machine-$(CONFIG_ARCH_IXP23XX)          := ixp23xx
 135 machine-$(CONFIG_ARCH_IXP4XX)           := ixp4xx
 136 machine-$(CONFIG_ARCH_KIRKWOOD)         := kirkwood
 137 machine-$(CONFIG_ARCH_KS8695)           := ks8695
 138 machine-$(CONFIG_ARCH_L7200)            := l7200
 139 machine-$(CONFIG_ARCH_LH7A40X)          := lh7a40x
 140 machine-$(CONFIG_ARCH_LOKI)             := loki
 141 machine-$(CONFIG_ARCH_MMP)              := mmp
 142 machine-$(CONFIG_ARCH_MSM)              := msm
 143 machine-$(CONFIG_ARCH_MV78XX0)          := mv78xx0
 144 machine-$(CONFIG_ARCH_MX1)              := mx1
 145 machine-$(CONFIG_ARCH_MX2)              := mx2
 146 machine-$(CONFIG_ARCH_MX25)             := mx25
 147 machine-$(CONFIG_ARCH_MX3)              := mx3
 148 machine-$(CONFIG_ARCH_NETX)             := netx
 149 machine-$(CONFIG_ARCH_NOMADIK)          := nomadik
 150 machine-$(CONFIG_ARCH_NS9XXX)           := ns9xxx
 151 machine-$(CONFIG_ARCH_OMAP1)            := omap1
 152 machine-$(CONFIG_ARCH_OMAP2)            := omap2
 153 machine-$(CONFIG_ARCH_OMAP3)            := omap2
 154 machine-$(CONFIG_ARCH_OMAP4)            := omap2
 155 machine-$(CONFIG_ARCH_ORION5X)          := orion5x
 156 machine-$(CONFIG_ARCH_PNX4008)          := pnx4008
 157 machine-$(CONFIG_ARCH_PXA)              := pxa
 158 machine-$(CONFIG_ARCH_REALVIEW)         := realview
 159 machine-$(CONFIG_ARCH_RPC)              := rpc
 160 machine-$(CONFIG_ARCH_S3C2410)          := s3c2410 s3c2400 s3c2412 s3c2440 s3c2442 s3c2443
 161 machine-$(CONFIG_ARCH_S3C24A0)          := s3c24a0
 162 machine-$(CONFIG_ARCH_S3C64XX)          := s3c6400 s3c6410
 163 machine-$(CONFIG_ARCH_S5PC1XX)          := s5pc100
 164 machine-$(CONFIG_ARCH_SA1100)           := sa1100
 165 machine-$(CONFIG_ARCH_SHARK)            := shark
 166 machine-$(CONFIG_ARCH_STMP378X)         := stmp378x
 167 machine-$(CONFIG_ARCH_STMP37XX)         := stmp37xx
 168 machine-$(CONFIG_ARCH_U300)             := u300
 169 machine-$(CONFIG_ARCH_VERSATILE)        := versatile
 170 machine-$(CONFIG_ARCH_W90X900)          := w90x900
 171 machine-$(CONFIG_FOOTBRIDGE)            := footbridge
 172 machine-$(CONFIG_ARCH_MXC91231)         := mxc91231
 173
 174 # Platform directory name.  This list is sorted alphanumerically
 175 # by CONFIG_* macro name.
 176 plat-$(CONFIG_ARCH_MXC)         := mxc
 177 plat-$(CONFIG_ARCH_OMAP)        := omap
 178 plat-$(CONFIG_PLAT_IOP)         := iop
 179 plat-$(CONFIG_PLAT_ORION)       := orion
 180 plat-$(CONFIG_PLAT_PXA)         := pxa
 181 plat-$(CONFIG_PLAT_S3C24XX)     := s3c24xx s3c
 182 plat-$(CONFIG_PLAT_S3C64XX)     := s3c64xx s3c
 183 plat-$(CONFIG_PLAT_S5PC1XX)     := s5pc1xx s3c
 184 plat-$(CONFIG_ARCH_STMP3XXX)    := stmp3xxx
 185
 186 ifeq ($(CONFIG_ARCH_EBSA110),y)
 187 # This is what happens if you forget the IOCS16 line.
 188 # PCMCIA cards stop working.
 189 CFLAGS_3c589_cs.o :=-DISA_SIXTEEN_BIT_PERIPHERAL
 190 export CFLAGS_3c589_cs.o
 191 endif
 192
 193 # The byte offset of the kernel image in RAM from the start of RAM.
 194 TEXT_OFFSET := $(textofs-y)
 195
 196 # The first directory contains additional information for the boot setup code
 197 ifneq ($(machine-y),)
 198 MACHINE  := arch/arm/mach-$(word 1,$(machine-y))/
 199 else
 200 MACHINE  :=
 201 endif
 202
 203 machdirs := $(patsubst %,arch/arm/mach-%/,$(machine-y))
 204 platdirs := $(patsubst %,arch/arm/plat-%/,$(plat-y))
 205
 206 ifeq ($(KBUILD_SRC),)
 207 KBUILD_CPPFLAGS += $(patsubst %,-I%include,$(machdirs) $(platdirs))
 208 else
 209 KBUILD_CPPFLAGS += $(patsubst %,-I$(srctree)/%include,$(machdirs) $(platdirs))
 210 endif
 211
 212 export  TEXT_OFFSET GZFLAGS MMUEXT
 213
 214 # Do we have FASTFPE?
 215 FASTFPE         :=arch/arm/fastfpe
 216 ifeq ($(FASTFPE),$(wildcard $(FASTFPE)))
 217 FASTFPE_OBJ     :=$(FASTFPE)/
 218 endif
 219
 220 # If we have a machine-specific directory, then include it in the build.
 221 core-y                          += arch/arm/kernel/ arch/arm/mm/ arch/arm/common/
 222 core-y                          += $(machdirs) $(platdirs)
 223 core-$(CONFIG_FPE_NWFPE)        += arch/arm/nwfpe/
 224 core-$(CONFIG_FPE_FASTFPE)      += $(FASTFPE_OBJ)
 225 core-$(CONFIG_VFP)              += arch/arm/vfp/
 226
 227 drivers-$(CONFIG_OPROFILE)      += arch/arm/oprofile/
 228
 229 libs-y                          := arch/arm/lib/ $(libs-y)
 230
 231 # Default target when executing plain make
 232 ifeq ($(CONFIG_XIP_KERNEL),y)
 233 KBUILD_IMAGE := xipImage
 234 else
 235 KBUILD_IMAGE := zImage
 236 endif
 237
 238 all:    $(KBUILD_IMAGE)
 239
 240 boot := arch/arm/boot
 241
 242 #       Update machine arch and proc symlinks if something which affects
 243 #       them changed.  We use .arch to indicate when they were updated
 244 #       last, otherwise make uses the target directory mtime.
 245
 246 archprepare: maketools
 247
 248 PHONY += maketools FORCE
 249 maketools: include/linux/version.h FORCE
 250         $(Q)$(MAKE) $(build)=arch/arm/tools include/asm-arm/mach-types.h
 251
 252 # Convert bzImage to zImage
 253 bzImage: zImage
 254
 255 zImage Image xipImage bootpImage uImage: vmlinux
 256         $(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $(boot)/$@
 257
 258 zinstall install: vmlinux
 259         $(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $@
 260
 261 CLEAN_FILES += include/asm-arm/mach-types.h \
 262                include/asm-arm/arch include/asm-arm/.arch
 263
 264 # We use MRPROPER_FILES and CLEAN_FILES now
 265 archclean:
 266         $(Q)$(MAKE) $(clean)=$(boot)
 267
 268 # My testing targets (bypasses dependencies)
 269 bp:;    $(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $(boot)/bootpImage
 270 i zi:;  $(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $@
 271
 272
 273 define archhelp
 274   echo  '* zImage        - Compressed kernel image (arch/$(ARCH)/boot/zImage)'
 275   echo  '  Image         - Uncompressed kernel image (arch/$(ARCH)/boot/Image)'
 276   echo  '* xipImage      - XIP kernel image, if configured (arch/$(ARCH)/boot/xipImage)'
 277   echo  '  uImage        - U-Boot wrapped zImage'
 278   echo  '  bootpImage    - Combined zImage and initial RAM disk'
 279   echo  '                  (supply initrd image via make variable INITRD=<path>)'
 280   echo  '  install       - Install uncompressed kernel'
 281   echo  '  zinstall      - Install compressed kernel'
 282   echo  '                  Install using (your) ~/bin/$(INSTALLKERNEL) or'
 283   echo  '                  (distribution) /sbin/$(INSTALLKERNEL) or'
 284   echo  '                  install to $$(INSTALL_PATH) and run lilo'
 285 endef