l4/pkg/bootstrap/server/src/Make.rules

   1 # vim:set ft=make:
   2 #
   3 # User definable variables for bootstrap:
   4 # - BOOTSTRAP_SEARCH_PATH
   5 # - BOOTSTRAP_ELF_NAME
   6 # - BOOTSTRAP_MODULES_LIST
   7 # - BOOTSTRAP_DO_RAW_IMAGE
   8 # - BOOTSTRAP_DO_UIMAGE
   9 # - BOOTSTRAP_UIMAGE_COMPRESSION: set to none, gzip, or bzip2
  10 # - BOOTSTRAP_CMDLINE: compiled-in command line, only used if no cmdline
  11 #                      given via multi-boot boot loader (e.g. on arm)
  12
  13 DEFAULT_RELOC_arm   := 0x01000000
  14 DEFAULT_RELOC_x86   := 0x002d0000
  15 DEFAULT_RELOC_amd64 := 0x002d0000
  16 DEFAULT_RELOC_ppc32 := 0x002d0000
  17 DEFAULT_RELOC_sparc := 0x00100000
  18 RELOC_PHYS          := y
  19 LDFLAGS              = -Bstatic
  20 EXTRA_GENERAL_D_DEP  = .redo-change-tracker
  21 INCLUDE_MAKE_RULES   = $(SRC_DIR)/*/Make.rules
  22 BOOTSTRAP_LD_dep    := $(SRC_DIR)/ldscript.inc
  23 #REQUIRES_LIBS        = libbsd-lite
  24
  25 include $(L4DIR)/mk/Makeconf
  26 -include $(OBJ_DIR)/Makeconf.local
  27 -include $(L4DIR)/conf/Makeconf.boot
  28 -include $(OBJ_BASE)/conf/Makeconf.boot
  29
  30 # Checks added Nov 2010:
  31 ifneq ($(wildcard $(L4DIR)/conf/Makeconf.bootstrap),)
  32 $(error $(L4DIR)/conf/Makeconf.bootstrap not used anymore. Please use $(L4DIR)/conf/Makeconf.boot now)
  33 endif
  34 ifneq ($(wildcard $(OBJ_BASE)/Makeconf.bootstrap),)
  35 $(error $(OBJ_BASE)/Makeconf.bootstrap not used anymore. Please use $(OBJ_BASE)/conf/Makeconf.boot now)
  36 endif
  37
  38 BOOTSTRAP_SEARCH_PATH        ?= .
  39 BOOTSTRAP_MODULES_LIST       ?= $(SRC_DIR)/modules.list
  40 BOOTSTRAP_MODULE_PATH_BINLIB ?= $(OBJ_BASE)/bin/$(SYSTEM)/$(BUILD_ABI):$(OBJ_BASE)/lib/$(SYSTEM)/$(BUILD_ABI):$(OBJ_BASE)/lib/$(SYSTEM)
  41 BOOTSTRAP_ELF_NAME           ?= bootstrap.elf
  42 MKIMAGE                      ?= mkimage
  43 BOOTSTRAP_UIMAGE_COMPRESSION ?= none
  44
  45 ifeq ($(BUILD_ARCH),$(filter $(BUILD_ARCH),arm ppc32))
  46   # ARM/PPC always uses single image mode
  47   # when no entry is given we build the useless auto-build target
  48   ifeq ($(E)$(ENTRY),)
  49     BOOTSTRAP_ELF_NAME := bootstrap.auto-build-useless.elf
  50   endif
  51   ENTRY := auto-build-entry
  52 endif
  53
  54
  55 PRIVATE_INCDIR   = $(SRC_DIR) $(SRC_DIR)/ARCH-$(ARCH)
  56
  57 # special include directories only needed for <l4/sys/kernel.h>
  58 PRIVATE_INCDIR_init_kip_v2.o      = $(OBJ_BASE)/include/$(ARCH)/l4f \
  59                                     $(DROPS_STDDIR)/include/$(ARCH)/l4f
  60 PRIVATE_INCDIR_init_arm_kip.o     = $(OBJ_BASE)/include/$(ARCH)/l4f \
  61                                     $(DROPS_STDDIR)/include/$(ARCH)/l4f
  62
  63 TARGET          := $(BOOTSTRAP_ELF_NAME)
  64 TARGET_BIN       = $(BOOTSTRAP_ELF_NAME)
  65 MODE             = lib
  66
  67 ifeq ($(PLATFORM_TYPE),)
  68 ifeq ($(X86_PLATFORM_TYPE),)
  69 X86_PLATFORM_TYPE = pc
  70 endif
  71
  72 PLATFORM_TYPE-arm   = $(ARM_PLATFORM_TYPE)
  73 PLATFORM_TYPE-ppc32 = $(PPC_PLATFORM_TYPE)
  74 PLATFORM_TYPE-x86   = $(X86_PLATFORM_TYPE)
  75 PLATFORM_TYPE-amd64 = $(X86_PLATFORM_TYPE)
  76 PLATFORM_TYPE-sparc = $(SPARC_PLATFORM_TYPE)
  77 PLATFORM_TYPE       = $(PLATFORM_TYPE-$(ARCH))
  78 endif
  79
  80 SUPPORT_CC_arm-sa1000     := support_sa1000.cc
  81 SUPPORT_CC_arm-pxa        := support_pxa.cc
  82 SUPPORT_CC_arm-integrator := support_integrator.cc
  83 SUPPORT_CC_arm-rv         := support_rv.cc
  84 SUPPORT_CC_arm-omap3evm   := support_omap3evm.cc
  85 SUPPORT_CC_arm-beagleboard:= support_beagleboard.cc
  86 SUPPORT_CC_arm-tegra2     := support_tegra2.cc
  87 SUPPORT_CC_arm-imx21      := support_imx.cc
  88 SUPPORT_CC_arm-imx51      := support_imx.cc
  89 SUPPORT_CC_arm-om         := support_om.cc
  90 SUPPORT_CC_arm-kirkwood   := support_kirkwood.cc
  91 DEFAULT_RELOC_arm-imx21   := 0x00200000  # because of blob
  92
  93 ifneq ($(DEFAULT_RELOC_arm-$(PLATFORM_TYPE)),)
  94 DEFAULT_RELOC_arm         := $(DEFAULT_RELOC_arm-$(PLATFORM_TYPE))
  95 endif
  96
  97 SUPPORT_CC_ppc32-mpc5200  := support_mpc5200.cc
  98
  99 SUPPORT_CC_x86-pc         := support_x86_pc.cc
 100
 101 SUPPORT_CC_amd64-pc       := support_x86_pc.cc
 102
 103 SUPPORT_CC_sparc-leon3    := support_sparc_leon3.cc
 104
 105 SRC_C           += exec.c module.c
 106 SRC_CC          += region.cc startup.cc init_kip_v2.cc init_kip_v4.cc \
 107                    libc_support+.cc patch.cc
 108
 109 SRC_CC_x86      += ARCH-x86/reboot.cc
 110 SRC_CC_amd64    += ARCH-x86/reboot.cc
 111 SRC_C_x86       += base_critical.c ARCH-x86/serial.c
 112 SRC_C_amd64     += base_critical.c ARCH-x86/serial.c
 113 SRC_CC_arm      += ARCH-arm/reboot.cc
 114 SRC_CC_ppc32    += ARCH-ppc32/init_kip_v2-arch.cc \
 115                    ARCH-ppc32/reboot.cc
 116 SRC_CC_sparc    += ARCH-sparc/reboot.cc
 117 SRC_CC          += $(SUPPORT_CC_$(ARCH)-$(PLATFORM_TYPE))
 118 SRC_S           += ARCH-$(ARCH)/crt0.S
 119
 120 OPTS             = -g -Os $(CARCHFLAGS_$(ARCH)) $(CARCHFLAGS_$(ARCH)_$(CPU))
 121 DEFINES         += -DRAM_BASE=$(RAM_BASE)
 122 DEFINES         += -DCMDLINE="\"$(BOOTSTRAP_CMDLINE)\""
 123 DEFINES         += -DPLATFORM_TYPE=\"$(PLATFORM_TYPE)\"
 124 DEFINES         += -DPLATFORM_TYPE_$(PLATFORM_TYPE)
 125
 126 MOD_ADDR         = 0x02000000
 127
 128 CPPFLAGS        += $(BID_PKG_CONFIG_CFLAGS)
 129
 130 ifeq ($(SUPPORT_CC_$(ARCH)-$(PLATFORM_TYPE)),)
 131  $(error A proper PLATFORM_TYPE must be set for a build.)
 132 endif
 133
 134 DRV_LIBS-ppc32   = -ldrivers_of
 135 DRV_LIBS         = -ldrivers_uart $(DRV_LIBS-$(ARCH))
 136 CRT0             =
 137 LDSCRIPT         = bootstrap.ld
 138 LDNMAGIC         =
 139
 140 vpath bootstrap.ld.in $(SRC_DIR)/ARCH-$(ARCH)
 141
 142 # can be overwritten by Makeconf.local
 143 COMPRESS        ?= 0
 144 LOADER_MBI      ?= 0
 145 REALMODE_LOADING ?= 0
 146 RML             ?= 0
 147
 148 ifneq ($(REALMODE_LOADING)$(RML),00)
 149 REALMODE_LOADING := 1
 150 $(error Info: Default reloc needs to be 0x00100000)
 151 # And if you have done so you probably need to relink sigma0 and/or moe
 152 endif
 153
 154 ifeq ($(ARCH),arm)
 155 LOADER_MBI       := 1
 156 CPPFLAGS         += -DSINGLE_SECTION
 157 endif
 158
 159
 160 # convenience
 161 ifneq ($(E),)
 162 ENTRY           := $(E)
 163 endif
 164
 165 ENTRY_FN := $(shell echo "$(ENTRY)" | tr '[ ]' '[_]' )
 166
 167 # we need to re-do if some things change
 168 # we do not need to track BOOTSTRACE_CMDLINE as it's only used in startup.cc
 169 # and that is regenerated every time
 170 REDO_TEXT_CMD = echo "$(ENTRY) '$(COMPRESS)' '$(RAM_SIZE_MB)' '$(PLATFORM_TYPE)' '$(LOADER_MBI)'"
 171 .redo-change-tracker: FORCE
 172         $(VERBOSE)if  test ! -r "$@" ||                    \
 173                     ! $(REDO_TEXT_CMD) | cmp -s "$@"; then \
 174           $(REDO_TEXT_CMD) > $@;  \
 175         fi
 176
 177 ifneq ($(ENTRY),)
 178
 179 INSTALL_TARGET  = $(BOOTSTRAP_ELF_NAME) bootstrap_$(ENTRY_FN) bootstrap_$(ENTRY_FN).elf
 180 ifeq ($(ARCH),amd64)
 181 INSTALL_TARGET += bootstrap32.elf
 182 BOOTSTRAP_LINK_SOURCE = bootstrap32.elf
 183 else
 184 BOOTSTRAP_LINK_SOURCE = $(BOOTSTRAP_ELF_NAME)
 185 endif
 186
 187 bootstrap_$(ENTRY_FN): $(BOOTSTRAP_LINK_SOURCE)
 188         $(VERBOSE)$(LN) -f $< $@
 189
 190 bootstrap_$(ENTRY_FN).elf: $(BOOTSTRAP_LINK_SOURCE)
 191         $(VERBOSE)$(LN) -f $< $@
 192
 193 bootstrap_$(ENTRY_FN).raw: bootstrap.raw
 194         $(VERBOSE)$(LN) -f $< $@
 195
 196 bootstrap_$(ENTRY_FN).uimage: bootstrap.uimage
 197         $(VERBOSE)$(LN) -f $< $@
 198
 199  ifeq ($(ARCH),$(filter $(ARCH),arm ppc32))
 200    BID_POST_PROG_LINK_MSG_$(BOOTSTRAP_ELF_NAME) = echo -e "  ==> Stripping $@"
 201    BID_POST_PROG_LINK_$(BOOTSTRAP_ELF_NAME)     = \
 202       $(VERBOSE)LANG=C $(NM) -C $@ | \
 203         LANG=C $(GREP) -q "V vtable for Platform_base" || \
 204            { echo -e "\nERROR: Missing at least one platform instantiation.\n"; \
 205              exit 1; } ; $(STRIP) $@
 206
 207    ifneq ($(BOOTSTRAP_DO_RAW_IMAGE)$(BOOTSTRAP_DO_UIMAGE),)
 208      BOOTSTRAP_RAW      := bootstrap.raw
 209      INSTALL_TARGET     += bootstrap.raw bootstrap_$(ENTRY_FN).raw
 210      ifneq ($(BOOTSTRAP_DO_UIMAGE),)
 211        ifneq ($(shell command -v $(MKIMAGE)),)
 212          BOOTSTRAP_UIMAGE   := bootstrap.uimage
 213          INSTALL_TARGET     += bootstrap.uimage bootstrap_$(ENTRY_FN).uimage
 214        else
 215          $(info mkimage($(MKIMAGE)) missing, not building bootstrap.uimage)
 216        endif
 217      endif
 218    endif
 219  endif
 220
 221 all:: $(addprefix $(IMAGES_DIR)/,$(INSTALL_TARGET))
 222         $(VERBOSE)echo "  Image size(s) in bytes:"
 223         $(VERBOSE)for f in $(filter bootstrap_$(ENTRY_FN).elf bootstrap.raw bootstrap.uimage, $(INSTALL_TARGET)); do \
 224           find . -name $$f -printf " %30f:  %s\n"; \
 225         done
 226         $(if $(BOOTSTRAP_DO_RAW_IMAGE),$(VERBOSE)echo "  Start address: $(patsubst -Ttext=%,%,$(LDFLAGS_bootstrap.elf))")
 227         $(VERBOSE)echo "  --> Build-Nr: $$(cat .build_nr)"
 228
 229 # install images into easy to reach directory in build dir
 230 $(IMAGES_DIR)/%: % $(IMAGES_DIR)/Makefile
 231         $(VERBOSE)if [ "$(ENTRY)" != "auto-build-entry" ]; then \
 232           echo "  ==> Installing $< in image directory";        \
 233           $(LN) -sf $(PWD)/$< $(dir $@);                        \
 234         fi
 235
 236 $(IMAGES_DIR)/Makefile: $(SRC_DIR)/Make.rules
 237         @echo "  ==> Preparing image directory"
 238         $(VERBOSE)install -d $(dir $@)
 239         $(VERBOSE)$(ECHO) "# Automatically generated by bootstrap"                           > $@
 240         $(VERBOSE)$(ECHO) "\$$(if \$$(MAKECMDGOALS),%,a):"                                  >> $@
 241         $(VERBOSE)$(ECHO) "     \$$(MAKE) -C .. image \$$(if \$$(MAKECMDGOALS),E=\"\$$@\")" >> $@
 242 else
 243   INSTALL_TARGET = bootstrap
 244 endif # ENTRY
 245
 246 ifneq ($(REALMODE_LOADING),0)
 247 LOADER_MBI       = 1
 248 CPPFLAGS        += -DREALMODE_LOADING -DSINGLE_SECTION
 249 # don't install bootstrap_$(ENTRY_FN).elf
 250 INSTALL_TARGET   = bootstrap.load
 251 endif
 252
 253 ifneq ($(LOADER_MBI),0)
 254 SRC_CC          += loader_mbi.cc
 255 MOD_ADDR         = 0x00150000
 256 CPPFLAGS        += -DLOADER_MBI
 257 endif
 258
 259 ifneq ($(COMPRESS),0)
 260 SRC_C           += uncompress.c gunzip.c
 261 CPPFLAGS        += -DCOMPRESS
 262 else
 263 CPPFLAGS        += -DPLACE_MODULES_AT_MODADDR
 264 endif
 265
 266 ifneq ($(RAM_SIZE_MB),)
 267 CPPFLAGS        += -DRAM_SIZE_MB=$(RAM_SIZE_MB)
 268 endif
 269
 270 CXXFLAGS += -fno-rtti -fno-exceptions
 271 CXXFLAGS += $(call checkcxx,-fno-threadsafe-statics)
 272
 273 ifneq ($(ENTRY),)
 274  ifeq ($(filter clean cleanall,$(MAKECMDGOALS)),)
 275    $(info Building entry "$(ENTRY)".)
 276    BUILD_DUMMY := $(shell SEARCHPATH="$(BOOTSTRAP_SEARCH_PATH):$(BOOTSTRAP_MODULE_PATH_BINLIB)" \
 277                           CROSS_COMPILE=$(SYSTEM_TARGET) \
 278                    OPT_ARCH=$(ARCH) \
 279                    OPT_COMPRESS=$(COMPRESS) \
 280                    L4DIR=$(L4DIR) \
 281                           $(SRC_DIR)/build.pl $(BOOTSTRAP_MODULES_LIST) "$(ENTRY)" 1>&2 \
 282                     || echo X-build-failed-X)
 283    ifeq ($(BUILD_DUMMY),X-build-failed-X)
 284     $(error Processing of module list failed!)
 285    else
 286     BUILD_DUMMY := $(shell echo $(BUILD_DUMMY))
 287    endif
 288    # mod.make.inc is generated by build.pl
 289    include mod.make.inc
 290  endif
 291
 292  OBJS_$(BOOTSTRAP_ELF_NAME)   += $(MODULE_OBJECT_FILES)
 293  CPPFLAGS                     += -DIMAGE_MODE
 294  BOOTSTRAP_LD_dep             += mod.make.inc
 295  STARTUP_C_dep                := mod.make.inc
 296 endif
 297
 298 CPPFLAGS        += -DMODADDR=$(MOD_ADDR)
 299
 300 LIBS             =
 301 L4_LIBS          = -static -nostdlib $(DRV_LIBS) -lcxx_base -lcxx_io
 302 L4_LIBS         += -luc_c $(GCCLIB)
 303
 304 all:: $(BOOTSTRAP_RAW)
 305
 306 # image for use with pxelinux
 307 bootstrap.load: $(TARGET_BIN) bootsect.o.img setup.o.img
 308         @$(GEN_MESSAGE)
 309         $(VERBOSE)objcopy -O binary -R .note -R .comment -S $< $<.load.bin
 310         $(VERBOSE)cat bootsect.o.img setup.o.img $<.load.bin > $@
 311
 312 bootsect.o.img: ARCH-x86/bootsect.S Makefile
 313         @$(GEN_MESSAGE)
 314         $(VERBOSE)$(CC) -traditional -nostdinc -nostdlib -c $<
 315         $(VERBOSE)$(LD) -m elf_i386 -Ttext 0x0 -o $@ -s --oformat binary \
 316           bootsect.o
 317         $(VERBOSE)chmod -x $@
 318
 319 setup.o.img: ARCH-x86/setup.S Makefile
 320         @$(GEN_MESSAGE)
 321         $(VERBOSE)$(CC) -traditional -nostdinc -nostdlib -DARCH_$(ARCH) -c $<
 322         $(VERBOSE)$(LD) -m elf_i386 -Ttext 0x0 -o $@ -s --oformat binary \
 323           -e begtext setup.o
 324         $(VERBOSE)dd if=/dev/zero bs=1 count=$$((3072 - `wc -c < setup.o.img`)) >> setup.o.img 2> /dev/null
 325         $(VERBOSE)chmod -x $@
 326
 327 # raw version without ELF, primarily useful for ARM
 328 $(BOOTSTRAP_RAW): $(TARGET_BIN)
 329         @$(GEN_MESSAGE)
 330         $(VERBOSE)cp $< $@.tmp
 331         $(VERBOSE)$(OBJCOPY) -O binary $@.tmp $@
 332         $(VERBOSE)chmod -x $@
 333         $(VERBOSE)$(RM) $@.tmp
 334
 335 %.gzip: %
 336         gzip -c9 $^ > $@
 337
 338 %.bzip2: %
 339         bzip2 -c9 $^ > $@
 340
 341 %.none: %
 342         ln -sf $^ $@
 343
 344 MKIMAGE_ARCH = $(if $(filter ppc32,$(ARCH)),ppc,$(ARCH))
 345
 346 # u-boot image, based on raw-version
 347 $(BOOTSTRAP_UIMAGE): $(BOOTSTRAP_RAW).$(BOOTSTRAP_UIMAGE_COMPRESSION)
 348         @$(GEN_MESSAGE)
 349         $(VERBOSE)$(MKIMAGE) -e $(call default_reloc,$(ARCH)) \
 350            -a $(call default_reloc,$(ARCH)) -A $(MKIMAGE_ARCH)  \
 351            -C $(BOOTSTRAP_UIMAGE_COMPRESSION) \
 352            -d $^ $@
 353
 354 $(TARGET): $(LDSCRIPT) $(OBJS_$(TARGET))
 355
 356
 357 increment_build_nr = \
 358    $(shell if [ -e .build_nr ]; then            \
 359              nr=$$(($$(cat .build_nr) + 1));    \
 360            else                                 \
 361              nr=1;                              \
 362            fi;                                  \
 363            echo $$nr > .build_nr; echo $$nr)
 364
 365
 366 startup.o: $(STARTUP_C_dep)
 367 startup.o: CPPFLAGS += -DBUILD_DATE="\"$(shell date)\"" -DBUILD_NR=\"$(call increment_build_nr)\"
 368
 369 $(LDSCRIPT): $(LDSCRIPT).in $(GENERAL_D_LOC) $(BOOTSTRAP_LD_dep)
 370         @$(GEN_MESSAGE)
 371         $(VERBOSE)cpp -P $(CPPFLAGS) -DLINKADDR=$(DEFAULT_RELOC_$(ARCH)) $< $@;
 372
 373 clean::
 374         $(VERBOSE)$(RM) mod.make.inc mod*.bin mbi_modules.bin $(LDSCRIPT)
 375         $(VERBOSE)$(RM) setup.o.img bootsect.o.img
 376         $(VERBOSE)$(RM) mod*.bin
 377         $(VERBOSE)$(RM) $(SRC32_C:.c=.o32) $(SRC32_S:.S=.o32)
 378         $(VERBOSE)$(RM) .redo-change-tracker
 379
 380 cleanall::
 381         $(VERBOSE)$(RM) bootstrap_* bootstrap.*
 382
 383 ifeq ($(ARCH),amd64)
 384
 385 vpath %.c             $(SRC_DIR)/ARCH-amd64
 386 vpath %.S             $(SRC_DIR)/ARCH-amd64
 387 vpath %.c             $(SRC_DIR)/ARCH-amd64/boot32
 388 vpath %.S             $(SRC_DIR)/ARCH-amd64/boot32
 389 vpath bootstrap.ld.in $(SRC_DIR)/ARCH-x86
 390
 391 SRC32_C          = boot_cpu.c boot_kernel.c load_elf.c minilibc_support.c
 392 SRC32_S          = boot.S boot_idt.S
 393 OBJ32            = $(SRC32_S:.S=.o32) $(SRC32_C:.c=.o32)
 394 CC32             = $(filter-out -m64, $(CC)) -m32
 395 CFLAGS32        := $(filter-out -m64, $(CFLAGS)) -m32
 396
 397 $(OBJ_DIR)/ARCH-amd64/libc32/OBJ-$(ARCH)_$(CPU)/libc32.a: FORCE
 398         $(VERBOSE)$(MAKE) O=$(OBJ_BASE) -C $(SRC_DIR)/ARCH-amd64/libc32
 399
 400 bootstrap32.elf: $(OBJ32) bootstrap32.bin $(OBJ_DIR)/ARCH-amd64/libc32/OBJ-$(ARCH)_$(CPU)/libc32.a
 401         @$(LINK_MESSAGE)
 402         $(VERBOSE)$(CC32) -o $@ -nostdlib -static \
 403           -Wl,-T,$(SRC_DIR)/ARCH-amd64/boot32/bootstrap32.ld,--gc-sections $^ -lgcc
 404         $(VERBOSE)chmod 755 $@
 405
 406 bootstrap: bootstrap32.elf
 407         $(VERBOSE)$(LN) -f $^ $@
 408
 409 bootstrap32.bin: $(BOOTSTRAP_ELF_NAME)
 410         @$(GEN_MESSAGE)
 411         $(VERBOSE)$(OBJCOPY) -S $< bootstrap64.bin
 412         $(VERBOSE)chmod -x bootstrap64.bin
 413         $(VERBOSE)$(OBJCOPY) -B i386 -I binary -O elf32-i386 bootstrap64.bin $@
 414
 415 %.o32: %.c
 416         @$(COMP_MESSAGE)
 417         $(VERBOSE)$(CC32) -o $@ -c $(DEPEND_FLAG) \
 418           $(CPPFLAGS) $(CFLAGS32) $(call absfilename,$<)
 419
 420 %.o32: %.S
 421         @$(COMP_MESSAGE)
 422         $(VERBOSE)$(CC32) -o $@ -c $(DEPEND_FLAG) \
 423           $(CPPFLAGS) $(CFLAGS32) $(call absfilename,$<)
 424
 425 clean cleanall::
 426         $(VERBOSE)PWD=$(call absfilename,$(SRC_DIR)/ARCH-amd64/libc32) \
 427           $(MAKE) -C $(SRC_DIR)/ARCH-amd64/libc32 $@
 428
 429 else
 430 bootstrap: $(BOOTSTRAP_ELF_NAME)
 431         $(VERBOSE)$(LN) -f $^ $@
 432 endif