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. Remember to do have actions
   6 # for "archclean" and "archdep" for cleaning up and making dependencies for
   7 # this architecture
   8 #
   9 # This file is subject to the terms and conditions of the GNU General Public
  10 # License.  See the file "COPYING" in the main directory of this archive
  11 # for more details.
  12 #
  13 # Copyright (C) 1995-1999 by Russell King
  14
  15 OBJCOPY         := $(CROSS_COMPILE)objcopy -O binary -R .note -R .comment -S
  16 CPP             := $(CC) -E
  17 LINKFLAGS       := -p -X -T arch/arm/vmlinux.lds
  18 ARCHCC          := $(word 1,$(CC))
  19
  20 AFLAGS          += -mno-fpu
  21 CFLAGS_PIPE     := -pipe
  22 CFLAGS          := $(CFLAGS) $(CFLAGS_PIPE) -msoft-float
  23
  24 ifdef CONFIG_FRAME_POINTER
  25 CFLAGS          := $(CFLAGS:-fomit-frame-pointer=)
  26 endif
  27
  28 ifdef CONFIG_DEBUG_INFO
  29 CFLAGS          += -g
  30 endif
  31
  32 GZFLAGS         = -9
  33
  34 # Ensure this is ld "2.9.4" or later
  35 NEW_LINKER      := $(shell if $(LD) --gc-sections --version >/dev/null 2>&1; then echo y; else echo n; fi)
  36
  37 ifneq ($(NEW_LINKER),y)
  38 dummy:;         @echo '*** ${VERSION}.${PATCHLEVEL} kernels no longer build correctly with old versions of binutils.'
  39                 @echo '*** Please upgrade your binutils to 2.9.5.'
  40                 @false
  41 endif
  42
  43 # GCC 2.7 uses different options to later compilers; sort out which we have
  44 NEW_GCC         := $(shell if $(CC) --version 2>&1 | grep '^2\.7' > /dev/null; then echo n; else echo y; fi)
  45
  46 #
  47 # select flags depending on the compiler
  48 #
  49 ifeq ($(NEW_GCC),y)
  50 CFLAGS                  += -mshort-load-bytes
  51 CFLAGS_PROC_CPU_26      := -mcpu=arm3 -Os
  52 CFLAGS_PROC_CPU_32v3    := -march=armv3
  53 CFLAGS_PROC_CPU_32v4    := -march=armv4
  54 CFLAGS_ARM6             := -mtune=arm6
  55 CFLAGS_ARM7             := -mtune=arm7
  56 CFLAGS_ARM720           := -mtune=arm7tdmi
  57 CFLAGS_SA110            := -mtune=strongarm110
  58 else
  59 CFLAGS                  += -DNO_TEXT_SECTIONS
  60 CFLAGS_PROC_CPU_26      := -m3
  61 CFLAGS_PROC_CPU_32v3    :=
  62 CFLAGS_PROC_CPU_32v4    :=
  63 CFLAGS_ARM6             := -m6
  64 CFLAGS_ARM7             := -m6
  65 CFLAGS_ARM720           := -m6
  66 CFLAGS_SA110            := -m6
  67 endif
  68
  69 #
  70 # Select CPU dependent flags
  71 #
  72 ifeq ($(CONFIG_CPU_26),y)
  73  PROCESSOR       = armo
  74  TEXTADDR        = 0x02080000
  75  CFLAGS         += $(CFLAGS_PROC_CPU_26)
  76  AFLAGS         += -mapcs-26
  77 endif
  78
  79 ifeq ($(CONFIG_CPU_32),y)
  80  PROCESSOR       = armv
  81  TEXTADDR        = 0xC0008000
  82  ifeq ($(CONFIG_CPU_32v4),y)
  83   CFLAGS        += $(CFLAGS_PROC_CPU_32v4)
  84   AFLAGS        += -mapcs-32 -marmv4
  85  else
  86   CFLAGS        += $(CFLAGS_PROC_CPU_32v3)
  87   AFLAGS        += -mapcs-32 -marmv3m
  88  endif
  89  #
  90  # Exactly one of the following must be selected
  91  #
  92  ifeq ($(CONFIG_CPU_ARM6),y)
  93   CFLAGS        += $(CFLAGS_ARM6)
  94  else
  95  ifeq ($(CONFIG_CPU_ARM7),y)
  96   CFLAGS        += $(CFLAGS_ARM7)
  97  else
  98  ifeq ($(CONFIG_CPU_ARM720),y)
  99   CFLAGS        += $(CFLAGS_ARM720)
 100  else
 101  ifeq ($(CONFIG_CPU_SA110),y)
 102   CFLAGS        += $(CFLAGS_SA110)
 103  else
 104  ifeq ($(CONFIG_CPU_SA1100),y)
 105   CFLAGS        += $(CFLAGS_SA110)
 106  endif
 107  endif
 108  endif
 109  endif
 110  endif
 111 endif
 112
 113 LIBGCC          := $(shell $(CC) $(CFLAGS) --print-libgcc-file-name)
 114
 115 export  LIBGCC MACHINE PROCESSOR TEXTADDR GZFLAGS
 116
 117 ifeq ($(CONFIG_ARCH_ARCA5K),y)
 118 MACHINE          = arc
 119 ARCHDIR          = arc
 120 endif
 121
 122 ifeq ($(CONFIG_ARCH_RPC),y)
 123 MACHINE          = rpc
 124 ARCHDIR          = rpc
 125 endif
 126
 127 ifeq ($(CONFIG_ARCH_EBSA110),y)
 128 MACHINE          = ebsa110
 129 ARCHDIR          = ebsa110
 130 endif
 131
 132 ifeq ($(CONFIG_ARCH_CLPS7500),y)
 133 MACHINE          = clps7500
 134 ARCHDIR          = cl7500
 135 endif
 136
 137 ifeq ($(CONFIG_FOOTBRIDGE),y)
 138 MACHINE          = footbridge
 139 ARCHDIR          = ebsa285
 140 endif
 141
 142 ifeq ($(CONFIG_ARCH_CO285),y)
 143 TEXTADDR         = 0x60008000
 144 endif
 145
 146 ifeq ($(CONFIG_ARCH_NEXUSPCI),y)
 147 MACHINE          = nexuspci
 148 ARCHDIR          = nexuspci
 149 endif
 150
 151 ifeq ($(CONFIG_ARCH_SHARK),y)
 152 MACHINE          = shark
 153 ARCHDIR          = shark
 154 endif
 155
 156 ifeq ($(CONFIG_ARCH_SA1100),y)
 157 MACHINE          = sa1100
 158 ARCHDIR          = sa1100
 159 endif
 160
 161 ifeq ($(CONFIG_ARCH_L7200),y)
 162 MACHINE          = l7200
 163 ARCHDIR          = l7200
 164 endif
 165
 166 HEAD            := arch/arm/kernel/head-$(PROCESSOR).o \
 167                    arch/arm/kernel/init_task.o
 168 SUBDIRS         += arch/arm/kernel arch/arm/mm arch/arm/lib \
 169                    arch/arm/special arch/arm/nwfpe
 170 CORE_FILES      := arch/arm/kernel/kernel.o arch/arm/mm/mm.o $(CORE_FILES)
 171 LIBS            := arch/arm/lib/lib.o arch/arm/lib/lib.a $(LIBS) $(LIBGCC)
 172 DRIVERS         += arch/arm/special/special.a
 173
 174 ifeq ($(CONFIG_NWFPE),y)
 175 LIBS            := arch/arm/nwfpe/math-emu.o $(LIBS)
 176 endif
 177
 178 ifeq ($(CONFIG_ARCH_ACORN),y)
 179 SUBDIRS         += drivers/acorn
 180 DRIVERS         += drivers/acorn/block/acorn-block.a
 181 DRIVERS         += drivers/acorn/char/acorn-char.o
 182 DRIVERS         += drivers/acorn/net/acorn-net.o
 183 DRIVERS         += drivers/acorn/scsi/acorn-scsi.a
 184 endif
 185
 186 ifeq ($(CONFIG_ARCH_CLPS7500),y)
 187 SUBDIRS         += drivers/acorn/char
 188 DRIVERS         += drivers/acorn/char/acorn-char.o
 189 endif
 190
 191 MAKEBOOT         = $(MAKE) -C arch/$(ARCH)/boot
 192
 193 # The following is a hack to get 'constants.h' up
 194 # to date before starting compilation
 195
 196 $(patsubst %, _dir_%, $(SUBDIRS)) : constants
 197
 198 constants: $(TOPDIR)/include/asm-arm/proc-fns.h dummy
 199         @$(MAKE) -C arch/arm/lib constants.h
 200
 201 symlinks: archsymlinks
 202
 203 archsymlinks:
 204         $(RM) include/asm-arm/arch include/asm-arm/proc
 205         (cd include/asm-arm; ln -sf arch-$(ARCHDIR) arch; ln -sf proc-$(PROCESSOR) proc)
 206
 207 vmlinux: arch/arm/vmlinux.lds
 208
 209 arch/arm/vmlinux.lds: arch/arm/vmlinux-$(PROCESSOR).lds.in dummy
 210         @sed 's/TEXTADDR/$(TEXTADDR)/' <$< >$@
 211
 212 arch/arm/kernel: dummy
 213         $(MAKE) linuxsubdirs SUBDIRS=arch/arm/kernel
 214
 215 arch/arm/mm: dummy
 216         $(MAKE) linuxsubdirs SUBDIRS=arch/arm/mm
 217
 218 arch/arm/lib: dummy
 219         $(MAKE) linuxsubdirs SUBDIRS=arch/arm/lib
 220
 221 zImage zinstall Image install: vmlinux
 222         @$(MAKEBOOT) $@
 223
 224 archmrproper:
 225         @$(MAKE) -C arch/$(ARCH)/special mrproper
 226         $(RM) include/asm-arm/arch include/asm-arm/proc
 227
 228 archclean:
 229         @$(MAKEBOOT) clean
 230         $(RM) arch/arm/lib/constants.h arch/arm/vmlinux.lds
 231
 232 archdep: symlinks
 233         @$(MAKEBOOT) dep
 234
 235 # My testing targets (that short circuit a few dependencies)
 236 zImg:;  @$(MAKEBOOT) zImage
 237 Img:;   @$(MAKEBOOT) Image
 238 i:;     @$(MAKEBOOT) install
 239 zi:;    @$(MAKEBOOT) zinstall
 240
 241 #
 242 # Configuration targets.  Use these to select a
 243 # configuration for your architecture
 244 #
 245 a5k_config:
 246         $(RM) arch/arm/defconfig
 247         cp arch/arm/def-configs/a5k arch/arm/defconfig
 248
 249 ebsa110_config:
 250         $(RM) arch/arm/defconfig
 251         cp arch/arm/def-configs/ebsa110 arch/arm/defconfig
 252
 253 footbridge_config:
 254         $(RM) arch/arm/defconfig
 255         cp arch/arm/def-configs/footbridge arch/arm/defconfig
 256
 257 rpc_config:
 258         $(RM) arch/arm/defconfig
 259         cp arch/arm/def-configs/rpc arch/arm/defconfig
 260
 261 brutus_config:
 262         $(RM) arch/arm/defconfig
 263         cp arch/arm/def-configs/brutus arch/arm/defconfig
 264
 265 victor_config:
 266         $(RM) arch/arm/defconfig
 267         cp arch/arm/def-configs/victor arch/arm/defconfig
 268
 269 empeg_config:
 270         $(RM) arch/arm/defconfig
 271         cp arch/arm/def-configs/empeg arch/arm/defconfig
 272
 273 thinclient_config:
 274         $(RM) arch/arm/defconfig
 275         cp arch/arm/def-configs/thinclient arch/arm/defconfig
 276
 277 assabet_config:
 278         $(RM) arch/arm/defconfig
 279         cp arch/arm/def-configs/assabet arch/arm/defconfig
 280
 281 lart_config:
 282         $(RM) arch/arm/defconfig
 283         cp arch/arm/def-configs/lart arch/arm/defconfig
 284
 285 l7200_config:
 286         $(RM) arch/arm/defconfig
 287         cp arch/arm/def-configs/lusl7200 arch/arm/defconfig