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 # Ensure linker flags are correct
  14 LDFLAGS         :=
  15
  16 LDFLAGS_vmlinux :=-p --no-undefined -X
  17 ifeq ($(CONFIG_CPU_ENDIAN_BE8),y)
  18 LDFLAGS_vmlinux += --be8
  19 endif
  20
  21 OBJCOPYFLAGS    :=-O binary -R .comment -S
  22 GZFLAGS         :=-9
  23 #KBUILD_CFLAGS  +=-pipe
  24
  25 # Never generate .eh_frame
  26 KBUILD_CFLAGS   += $(call cc-option,-fno-dwarf2-cfi-asm)
  27
  28 # Do not use arch/arm/defconfig - it's always outdated.
  29 # Select a platform tht is kept up-to-date
  30 KBUILD_DEFCONFIG := versatile_defconfig
  31
  32 # defines filename extension depending memory management type.
  33 ifeq ($(CONFIG_MMU),)
  34 MMUEXT          := -nommu
  35 endif
  36
  37 ifeq ($(CONFIG_FRAME_POINTER),y)
  38 KBUILD_CFLAGS   +=-fno-omit-frame-pointer -mapcs -mno-sched-prolog
  39 endif
  40
  41 ifeq ($(CONFIG_CC_STACKPROTECTOR),y)
  42 KBUILD_CFLAGS   +=-fstack-protector
  43 endif
  44
  45 ifeq ($(CONFIG_CPU_BIG_ENDIAN),y)
  46 KBUILD_CPPFLAGS += -mbig-endian
  47 AS              += -EB
  48 LD              += -EB
  49 else
  50 KBUILD_CPPFLAGS += -mlittle-endian
  51 AS              += -EL
  52 LD              += -EL
  53 endif
  54
  55 comma = ,
  56
  57 # This selects which instruction set is used.
  58 # Note that GCC does not numerically define an architecture version
  59 # macro, but instead defines a whole series of macros which makes
  60 # testing for a specific architecture or later rather impossible.
  61 arch-$(CONFIG_CPU_32v7)         :=-D__LINUX_ARM_ARCH__=7 $(call cc-option,-march=armv7-a,-march=armv5t -Wa$(comma)-march=armv7-a)
  62 arch-$(CONFIG_CPU_32v6)         :=-D__LINUX_ARM_ARCH__=6 $(call cc-option,-march=armv6,-march=armv5t -Wa$(comma)-march=armv6)
  63 # Only override the compiler option if ARMv6. The ARMv6K extensions are
  64 # always available in ARMv7
  65 ifeq ($(CONFIG_CPU_32v6),y)
  66 arch-$(CONFIG_CPU_32v6K)        :=-D__LINUX_ARM_ARCH__=6 $(call cc-option,-march=armv6k,-march=armv5t -Wa$(comma)-march=armv6k)
  67 endif
  68 arch-$(CONFIG_CPU_32v5)         :=-D__LINUX_ARM_ARCH__=5 $(call cc-option,-march=armv5te,-march=armv4t)
  69 arch-$(CONFIG_CPU_32v4T)        :=-D__LINUX_ARM_ARCH__=4 -march=armv4t
  70 arch-$(CONFIG_CPU_32v4)         :=-D__LINUX_ARM_ARCH__=4 -march=armv4
  71 arch-$(CONFIG_CPU_32v3)         :=-D__LINUX_ARM_ARCH__=3 -march=armv3
  72
  73 # This selects how we optimise for the processor.
  74 tune-$(CONFIG_CPU_ARM7TDMI)     :=-mtune=arm7tdmi
  75 tune-$(CONFIG_CPU_ARM720T)      :=-mtune=arm7tdmi
  76 tune-$(CONFIG_CPU_ARM740T)      :=-mtune=arm7tdmi
  77 tune-$(CONFIG_CPU_ARM9TDMI)     :=-mtune=arm9tdmi
  78 tune-$(CONFIG_CPU_ARM940T)      :=-mtune=arm9tdmi
  79 tune-$(CONFIG_CPU_ARM946E)      :=$(call cc-option,-mtune=arm9e,-mtune=arm9tdmi)
  80 tune-$(CONFIG_CPU_ARM920T)      :=-mtune=arm9tdmi
  81 tune-$(CONFIG_CPU_ARM922T)      :=-mtune=arm9tdmi
  82 tune-$(CONFIG_CPU_ARM925T)      :=-mtune=arm9tdmi
  83 tune-$(CONFIG_CPU_ARM926T)      :=-mtune=arm9tdmi
  84 tune-$(CONFIG_CPU_FA526)        :=-mtune=arm9tdmi
  85 tune-$(CONFIG_CPU_SA110)        :=-mtune=strongarm110
  86 tune-$(CONFIG_CPU_SA1100)       :=-mtune=strongarm1100
  87 tune-$(CONFIG_CPU_XSCALE)       :=$(call cc-option,-mtune=xscale,-mtune=strongarm110) -Wa,-mcpu=xscale
  88 tune-$(CONFIG_CPU_XSC3)         :=$(call cc-option,-mtune=xscale,-mtune=strongarm110) -Wa,-mcpu=xscale
  89 tune-$(CONFIG_CPU_FEROCEON)     :=$(call cc-option,-mtune=marvell-f,-mtune=xscale)
  90 tune-$(CONFIG_CPU_V6)           :=$(call cc-option,-mtune=arm1136j-s,-mtune=strongarm)
  91 tune-$(CONFIG_CPU_V6K)          :=$(call cc-option,-mtune=arm1136j-s,-mtune=strongarm)
  92
  93 ifeq ($(CONFIG_AEABI),y)
  94 CFLAGS_ABI      :=-mabi=aapcs-linux -mno-thumb-interwork
  95 else
  96 CFLAGS_ABI      :=$(call cc-option,-mapcs-32,-mabi=apcs-gnu) $(call cc-option,-mno-thumb-interwork,)
  97 endif
  98
  99 ifeq ($(CONFIG_ARM_UNWIND),y)
 100 CFLAGS_ABI      +=-funwind-tables
 101 endif
 102
 103 ifeq ($(CONFIG_THUMB2_KERNEL),y)
 104 AFLAGS_AUTOIT   :=$(call as-option,-Wa$(comma)-mimplicit-it=always,-Wa$(comma)-mauto-it)
 105 AFLAGS_NOWARN   :=$(call as-option,-Wa$(comma)-mno-warn-deprecated,-Wa$(comma)-W)
 106 CFLAGS_ISA      :=-mthumb $(AFLAGS_AUTOIT) $(AFLAGS_NOWARN)
 107 AFLAGS_ISA      :=$(CFLAGS_ISA) -Wa$(comma)-mthumb
 108 # Work around buggy relocation from gas if requested:
 109 ifeq ($(CONFIG_THUMB2_AVOID_R_ARM_THM_JUMP11),y)
 110 CFLAGS_MODULE   +=-fno-optimize-sibling-calls
 111 endif
 112 else
 113 CFLAGS_ISA      :=$(call cc-option,-marm,)
 114 AFLAGS_ISA      :=$(CFLAGS_ISA)
 115 endif
 116
 117 # Need -Uarm for gcc < 3.x
 118 KBUILD_CFLAGS   +=$(CFLAGS_ABI) $(CFLAGS_ISA) $(arch-y) $(tune-y) $(call cc-option,-mshort-load-bytes,$(call cc-option,-malignment-traps,)) -msoft-float -Uarm
 119 KBUILD_AFLAGS   +=$(CFLAGS_ABI) $(AFLAGS_ISA) $(arch-y) $(tune-y) -include asm/unified.h -msoft-float
 120
 121 CHECKFLAGS      += -D__arm__
 122
 123 #Default value
 124 head-y          := arch/arm/kernel/head$(MMUEXT).o
 125 textofs-y       := 0x00008000
 126 textofs-$(CONFIG_ARCH_CLPS711X) := 0x00028000
 127 # We don't want the htc bootloader to corrupt kernel during resume
 128 textofs-$(CONFIG_PM_H1940)      := 0x00108000
 129 # SA1111 DMA bug: we don't want the kernel to live in precious DMA-able memory
 130 ifeq ($(CONFIG_ARCH_SA1100),y)
 131 textofs-$(CONFIG_SA1111) := 0x00208000
 132 endif
 133 textofs-$(CONFIG_ARCH_MSM7X30) := 0x00208000
 134 textofs-$(CONFIG_ARCH_MSM8X60) := 0x00208000
 135 textofs-$(CONFIG_ARCH_MSM8960) := 0x00208000
 136
 137 # Machine directory name.  This list is sorted alphanumerically
 138 # by CONFIG_* macro name.
 139 machine-$(CONFIG_ARCH_AT91)             += at91
 140 machine-$(CONFIG_ARCH_BCM2835)          += bcm2835
 141 machine-$(CONFIG_ARCH_CLPS711X)         += clps711x
 142 machine-$(CONFIG_ARCH_CNS3XXX)          += cns3xxx
 143 machine-$(CONFIG_ARCH_DAVINCI)          += davinci
 144 machine-$(CONFIG_ARCH_DOVE)             += dove
 145 machine-$(CONFIG_ARCH_EBSA110)          += ebsa110
 146 machine-$(CONFIG_ARCH_EP93XX)           += ep93xx
 147 machine-$(CONFIG_ARCH_GEMINI)           += gemini
 148 machine-$(CONFIG_ARCH_H720X)            += h720x
 149 machine-$(CONFIG_ARCH_HIGHBANK)         += highbank
 150 machine-$(CONFIG_ARCH_INTEGRATOR)       += integrator
 151 machine-$(CONFIG_ARCH_IOP13XX)          += iop13xx
 152 machine-$(CONFIG_ARCH_IOP32X)           += iop32x
 153 machine-$(CONFIG_ARCH_IOP33X)           += iop33x
 154 machine-$(CONFIG_ARCH_IXP4XX)           += ixp4xx
 155 machine-$(CONFIG_ARCH_KIRKWOOD)         += kirkwood
 156 machine-$(CONFIG_ARCH_KS8695)           += ks8695
 157 machine-$(CONFIG_ARCH_LPC32XX)          += lpc32xx
 158 machine-$(CONFIG_ARCH_MMP)              += mmp
 159 machine-$(CONFIG_ARCH_MSM)              += msm
 160 machine-$(CONFIG_ARCH_MV78XX0)          += mv78xx0
 161 machine-$(CONFIG_ARCH_MXC)              += imx
 162 machine-$(CONFIG_ARCH_MXS)              += mxs
 163 machine-$(CONFIG_ARCH_MVEBU)            += mvebu
 164 machine-$(CONFIG_ARCH_NETX)             += netx
 165 machine-$(CONFIG_ARCH_NOMADIK)          += nomadik
 166 machine-$(CONFIG_ARCH_OMAP1)            += omap1
 167 machine-$(CONFIG_ARCH_OMAP2PLUS)        += omap2
 168 machine-$(CONFIG_ARCH_ORION5X)          += orion5x
 169 machine-$(CONFIG_ARCH_PICOXCELL)        += picoxcell
 170 machine-$(CONFIG_ARCH_PRIMA2)           += prima2
 171 machine-$(CONFIG_ARCH_PXA)              += pxa
 172 machine-$(CONFIG_ARCH_REALVIEW)         += realview
 173 machine-$(CONFIG_ARCH_RPC)              += rpc
 174 machine-$(CONFIG_ARCH_S3C24XX)          += s3c24xx s3c2412 s3c2440
 175 machine-$(CONFIG_ARCH_S3C64XX)          += s3c64xx
 176 machine-$(CONFIG_ARCH_S5P64X0)          += s5p64x0
 177 machine-$(CONFIG_ARCH_S5PC100)          += s5pc100
 178 machine-$(CONFIG_ARCH_S5PV210)          += s5pv210
 179 machine-$(CONFIG_ARCH_EXYNOS)           += exynos
 180 machine-$(CONFIG_ARCH_SA1100)           += sa1100
 181 machine-$(CONFIG_ARCH_SHARK)            += shark
 182 machine-$(CONFIG_ARCH_SHMOBILE)         += shmobile
 183 machine-$(CONFIG_ARCH_TEGRA)            += tegra
 184 machine-$(CONFIG_ARCH_U300)             += u300
 185 machine-$(CONFIG_ARCH_U8500)            += ux500
 186 machine-$(CONFIG_ARCH_VERSATILE)        += versatile
 187 machine-$(CONFIG_ARCH_VEXPRESS)         += vexpress
 188 machine-$(CONFIG_ARCH_VT8500)           += vt8500
 189 machine-$(CONFIG_ARCH_W90X900)          += w90x900
 190 machine-$(CONFIG_FOOTBRIDGE)            += footbridge
 191 machine-$(CONFIG_ARCH_SOCFPGA)          += socfpga
 192 machine-$(CONFIG_ARCH_SPEAR13XX)        += spear13xx
 193 machine-$(CONFIG_ARCH_SPEAR3XX)         += spear3xx
 194 machine-$(CONFIG_MACH_SPEAR600)         += spear6xx
 195 machine-$(CONFIG_ARCH_ZYNQ)             += zynq
 196
 197 # Platform directory name.  This list is sorted alphanumerically
 198 # by CONFIG_* macro name.
 199 plat-$(CONFIG_ARCH_OMAP)        += omap
 200 plat-$(CONFIG_ARCH_S3C64XX)     += samsung
 201 plat-$(CONFIG_ARCH_ZYNQ)        += versatile
 202 plat-$(CONFIG_PLAT_IOP)         += iop
 203 plat-$(CONFIG_PLAT_NOMADIK)     += nomadik
 204 plat-$(CONFIG_PLAT_ORION)       += orion
 205 plat-$(CONFIG_PLAT_PXA)         += pxa
 206 plat-$(CONFIG_PLAT_S3C24XX)     += s3c24xx samsung
 207 plat-$(CONFIG_PLAT_S5P)         += samsung
 208 plat-$(CONFIG_PLAT_SPEAR)       += spear
 209 plat-$(CONFIG_PLAT_VERSATILE)   += versatile
 210
 211 ifeq ($(CONFIG_ARCH_EBSA110),y)
 212 # This is what happens if you forget the IOCS16 line.
 213 # PCMCIA cards stop working.
 214 CFLAGS_3c589_cs.o :=-DISA_SIXTEEN_BIT_PERIPHERAL
 215 export CFLAGS_3c589_cs.o
 216 endif
 217
 218 # The byte offset of the kernel image in RAM from the start of RAM.
 219 TEXT_OFFSET := $(textofs-y)
 220
 221 # The first directory contains additional information for the boot setup code
 222 ifneq ($(machine-y),)
 223 MACHINE  := arch/arm/mach-$(word 1,$(machine-y))/
 224 else
 225 MACHINE  :=
 226 endif
 227 ifeq ($(CONFIG_ARCH_MULTIPLATFORM),y)
 228 MACHINE  :=
 229 endif
 230
 231 machdirs := $(patsubst %,arch/arm/mach-%/,$(machine-y))
 232 platdirs := $(patsubst %,arch/arm/plat-%/,$(plat-y))
 233
 234 ifneq ($(CONFIG_ARCH_MULTIPLATFORM),y)
 235 ifeq ($(KBUILD_SRC),)
 236 KBUILD_CPPFLAGS += $(patsubst %,-I%include,$(machdirs) $(platdirs))
 237 else
 238 KBUILD_CPPFLAGS += $(patsubst %,-I$(srctree)/%include,$(machdirs) $(platdirs))
 239 endif
 240 endif
 241
 242 export  TEXT_OFFSET GZFLAGS MMUEXT
 243
 244 # Do we have FASTFPE?
 245 FASTFPE         :=arch/arm/fastfpe
 246 ifeq ($(FASTFPE),$(wildcard $(FASTFPE)))
 247 FASTFPE_OBJ     :=$(FASTFPE)/
 248 endif
 249
 250 core-$(CONFIG_FPE_NWFPE)        += arch/arm/nwfpe/
 251 core-$(CONFIG_FPE_FASTFPE)      += $(FASTFPE_OBJ)
 252 core-$(CONFIG_VFP)              += arch/arm/vfp/
 253 core-$(CONFIG_XEN)              += arch/arm/xen/
 254
 255 # If we have a machine-specific directory, then include it in the build.
 256 core-y                          += arch/arm/kernel/ arch/arm/mm/ arch/arm/common/
 257 core-y                          += arch/arm/net/
 258 core-y                          += arch/arm/crypto/
 259 core-y                          += $(machdirs) $(platdirs)
 260
 261 drivers-$(CONFIG_OPROFILE)      += arch/arm/oprofile/
 262
 263 libs-y                          := arch/arm/lib/ $(libs-y)
 264
 265 # Default target when executing plain make
 266 ifeq ($(CONFIG_XIP_KERNEL),y)
 267 KBUILD_IMAGE := xipImage
 268 else
 269 KBUILD_IMAGE := zImage
 270 endif
 271
 272 # Build the DT binary blobs if we have OF configured
 273 ifeq ($(CONFIG_USE_OF),y)
 274 KBUILD_DTBS := dtbs
 275 endif
 276
 277 all:    $(KBUILD_IMAGE) $(KBUILD_DTBS)
 278
 279 boot := arch/arm/boot
 280
 281 archprepare:
 282         $(Q)$(MAKE) $(build)=arch/arm/tools include/generated/mach-types.h
 283
 284 # Convert bzImage to zImage
 285 bzImage: zImage
 286
 287 zImage Image xipImage bootpImage uImage: vmlinux
 288         $(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $(boot)/$@
 289
 290 zinstall uinstall install: vmlinux
 291         $(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $@
 292
 293 %.dtb: scripts
 294         $(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $(boot)/$@
 295
 296 dtbs: scripts
 297         $(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $(boot)/$@
 298
 299 # We use MRPROPER_FILES and CLEAN_FILES now
 300 archclean:
 301         $(Q)$(MAKE) $(clean)=$(boot)
 302
 303 # My testing targets (bypasses dependencies)
 304 bp:;    $(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $(boot)/bootpImage
 305 i zi:;  $(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $@
 306
 307
 308 define archhelp
 309   echo  '* zImage        - Compressed kernel image (arch/$(ARCH)/boot/zImage)'
 310   echo  '  Image         - Uncompressed kernel image (arch/$(ARCH)/boot/Image)'
 311   echo  '* xipImage      - XIP kernel image, if configured (arch/$(ARCH)/boot/xipImage)'
 312   echo  '  uImage        - U-Boot wrapped zImage'
 313   echo  '  bootpImage    - Combined zImage and initial RAM disk'
 314   echo  '                  (supply initrd image via make variable INITRD=<path>)'
 315   echo  '* dtbs          - Build device tree blobs for enabled boards'
 316   echo  '  install       - Install uncompressed kernel'
 317   echo  '  zinstall      - Install compressed kernel'
 318   echo  '  uinstall      - Install U-Boot wrapped compressed kernel'
 319   echo  '                  Install using (your) ~/bin/$(INSTALLKERNEL) or'
 320   echo  '                  (distribution) /sbin/$(INSTALLKERNEL) or'
 321   echo  '                  install to $$(INSTALL_PATH) and run lilo'
 322 endef