Makefile

   1 #
   2 # (C) Copyright 2000-2013
   3 # Wolfgang Denk, DENX Software Engineering, wd@denx.de.
   4 #
   5 # SPDX-License-Identifier:      GPL-2.0+
   6 #
   7
   8 VERSION = 2014
   9 PATCHLEVEL = 01
  10 SUBLEVEL =
  11 EXTRAVERSION = -rc1
  12 ifneq "$(SUBLEVEL)" ""
  13 U_BOOT_VERSION = $(VERSION).$(PATCHLEVEL).$(SUBLEVEL)$(EXTRAVERSION)
  14 else
  15 U_BOOT_VERSION = $(VERSION).$(PATCHLEVEL)$(EXTRAVERSION)
  16 endif
  17 TIMESTAMP_FILE = $(obj)include/generated/timestamp_autogenerated.h
  18 VERSION_FILE = $(obj)include/generated/version_autogenerated.h
  19
  20 HOSTARCH := $(shell uname -m | \
  21         sed -e s/i.86/x86/ \
  22             -e s/sun4u/sparc64/ \
  23             -e s/arm.*/arm/ \
  24             -e s/sa110/arm/ \
  25             -e s/ppc64/powerpc/ \
  26             -e s/ppc/powerpc/ \
  27             -e s/macppc/powerpc/\
  28             -e s/sh.*/sh/)
  29
  30 HOSTOS := $(shell uname -s | tr '[:upper:]' '[:lower:]' | \
  31             sed -e 's/\(cygwin\).*/cygwin/')
  32
  33 export  HOSTARCH HOSTOS
  34
  35 # Deal with colliding definitions from tcsh etc.
  36 VENDOR=
  37
  38 #########################################################################
  39 # Allow for silent builds
  40 ifeq (,$(findstring s,$(MAKEFLAGS)))
  41 XECHO = echo
  42 else
  43 XECHO = :
  44 endif
  45
  46 #########################################################################
  47 #
  48 # U-boot build supports generating object files in a separate external
  49 # directory. Two use cases are supported:
  50 #
  51 # 1) Add O= to the make command line
  52 # 'make O=/tmp/build all'
  53 #
  54 # 2) Set environment variable BUILD_DIR to point to the desired location
  55 # 'export BUILD_DIR=/tmp/build'
  56 # 'make'
  57 #
  58 # The second approach can also be used with a MAKEALL script
  59 # 'export BUILD_DIR=/tmp/build'
  60 # './MAKEALL'
  61 #
  62 # Command line 'O=' setting overrides BUILD_DIR environment variable.
  63 #
  64 # When none of the above methods is used the local build is performed and
  65 # the object files are placed in the source directory.
  66 #
  67
  68 ifeq ("$(origin O)", "command line")
  69 BUILD_DIR := $(O)
  70 endif
  71
  72 # Call a source code checker (by default, "sparse") as part of the
  73 # C compilation.
  74 #
  75 # Use 'make C=1' to enable checking of re-compiled files.
  76 #
  77 # See the linux kernel file "Documentation/sparse.txt" for more details,
  78 # including where to get the "sparse" utility.
  79
  80 ifdef C
  81 ifeq ("$(origin C)", "command line")
  82 CHECKSRC := $(C)
  83 endif
  84 endif
  85 ifndef CHECKSRC
  86   CHECKSRC = 0
  87 endif
  88 export CHECKSRC
  89
  90 ifneq ($(BUILD_DIR),)
  91 saved-output := $(BUILD_DIR)
  92
  93 # Attempt to create a output directory.
  94 $(shell [ -d ${BUILD_DIR} ] || mkdir -p ${BUILD_DIR})
  95
  96 # Verify if it was successful.
  97 BUILD_DIR := $(shell cd $(BUILD_DIR) && /bin/pwd)
  98 $(if $(BUILD_DIR),,$(error output directory "$(saved-output)" does not exist))
  99 endif # ifneq ($(BUILD_DIR),)
 100
 101 OBJTREE         := $(if $(BUILD_DIR),$(BUILD_DIR),$(CURDIR))
 102 SPLTREE         := $(OBJTREE)/spl
 103 TPLTREE         := $(OBJTREE)/tpl
 104 SRCTREE         := $(CURDIR)
 105 TOPDIR          := $(SRCTREE)
 106 LNDIR           := $(OBJTREE)
 107 export  TOPDIR SRCTREE OBJTREE SPLTREE TPLTREE
 108
 109 MKCONFIG        := $(SRCTREE)/mkconfig
 110 export MKCONFIG
 111
 112 ifneq ($(OBJTREE),$(SRCTREE))
 113 REMOTE_BUILD    := 1
 114 export REMOTE_BUILD
 115 endif
 116
 117 # $(obj) and (src) are defined in config.mk but here in main Makefile
 118 # we also need them before config.mk is included which is the case for
 119 # some targets like unconfig, clean, clobber, distclean, etc.
 120 ifneq ($(OBJTREE),$(SRCTREE))
 121 obj := $(OBJTREE)/
 122 src := $(SRCTREE)/
 123 else
 124 obj :=
 125 src :=
 126 endif
 127 export obj src
 128
 129 # Make sure CDPATH settings don't interfere
 130 unexport CDPATH
 131
 132 #########################################################################
 133
 134 # The "tools" are needed early, so put this first
 135 # Don't include stuff already done in $(LIBS)
 136 # The "examples" conditionally depend on U-Boot (say, when USE_PRIVATE_LIBGCC
 137 # is "yes"), so compile examples after U-Boot is compiled.
 138 SUBDIR_TOOLS = tools
 139 SUBDIRS = $(SUBDIR_TOOLS)
 140
 141 .PHONY : $(SUBDIRS) $(VERSION_FILE) $(TIMESTAMP_FILE)
 142
 143 ifeq ($(obj)include/config.mk,$(wildcard $(obj)include/config.mk))
 144
 145 # Include autoconf.mk before config.mk so that the config options are available
 146 # to all top level build files.  We need the dummy all: target to prevent the
 147 # dependency target in autoconf.mk.dep from being the default.
 148 all:
 149 sinclude $(obj)include/autoconf.mk.dep
 150 sinclude $(obj)include/autoconf.mk
 151
 152 SUBDIR_EXAMPLES-y := examples/standalone
 153 SUBDIR_EXAMPLES-$(CONFIG_API) += examples/api
 154 ifndef CONFIG_SANDBOX
 155 SUBDIRS += $(SUBDIR_EXAMPLES-y)
 156 endif
 157
 158 # load ARCH, BOARD, and CPU configuration
 159 include $(obj)include/config.mk
 160 export  ARCH CPU BOARD VENDOR SOC
 161
 162 # set default to nothing for native builds
 163 ifeq ($(HOSTARCH),$(ARCH))
 164 CROSS_COMPILE ?=
 165 endif
 166
 167 # load other configuration
 168 include $(TOPDIR)/config.mk
 169
 170 # Targets which don't build the source code
 171 NON_BUILD_TARGETS = backup clean clobber distclean mkproper tidy unconfig
 172
 173 # Only do the generic board check when actually building, not configuring
 174 ifeq ($(filter $(NON_BUILD_TARGETS),$(MAKECMDGOALS)),)
 175 ifeq ($(findstring _config,$(MAKECMDGOALS)),)
 176 $(CHECK_GENERIC_BOARD)
 177 endif
 178 endif
 179
 180 # If board code explicitly specified LDSCRIPT or CONFIG_SYS_LDSCRIPT, use
 181 # that (or fail if absent).  Otherwise, search for a linker script in a
 182 # standard location.
 183
 184 LDSCRIPT_MAKEFILE_DIR = $(dir $(LDSCRIPT))
 185
 186 ifndef LDSCRIPT
 187         #LDSCRIPT := $(TOPDIR)/board/$(BOARDDIR)/u-boot.lds.debug
 188         ifdef CONFIG_SYS_LDSCRIPT
 189                 # need to strip off double quotes
 190                 LDSCRIPT := $(subst ",,$(CONFIG_SYS_LDSCRIPT))
 191         endif
 192 endif
 193
 194 # If there is no specified link script, we look in a number of places for it
 195 ifndef LDSCRIPT
 196         ifeq ($(CONFIG_NAND_U_BOOT),y)
 197                 LDSCRIPT := $(TOPDIR)/board/$(BOARDDIR)/u-boot-nand.lds
 198                 ifeq ($(wildcard $(LDSCRIPT)),)
 199                         LDSCRIPT := $(TOPDIR)/$(CPUDIR)/u-boot-nand.lds
 200                 endif
 201         endif
 202         ifeq ($(wildcard $(LDSCRIPT)),)
 203                 LDSCRIPT := $(TOPDIR)/board/$(BOARDDIR)/u-boot.lds
 204         endif
 205         ifeq ($(wildcard $(LDSCRIPT)),)
 206                 LDSCRIPT := $(TOPDIR)/$(CPUDIR)/u-boot.lds
 207         endif
 208         ifeq ($(wildcard $(LDSCRIPT)),)
 209                 LDSCRIPT := $(TOPDIR)/arch/$(ARCH)/cpu/u-boot.lds
 210                 # We don't expect a Makefile here
 211                 LDSCRIPT_MAKEFILE_DIR =
 212         endif
 213         ifeq ($(wildcard $(LDSCRIPT)),)
 214 $(error could not find linker script)
 215         endif
 216 endif
 217
 218 #########################################################################
 219 # U-Boot objects....order is important (i.e. start must be first)
 220
 221 OBJS  = $(CPUDIR)/start.o
 222 ifeq ($(CPU),ppc4xx)
 223 OBJS += $(CPUDIR)/resetvec.o
 224 endif
 225 ifeq ($(CPU),mpc85xx)
 226 OBJS += $(CPUDIR)/resetvec.o
 227 endif
 228
 229 OBJS := $(addprefix $(obj),$(OBJS))
 230
 231 HAVE_VENDOR_COMMON_LIB = $(if $(wildcard board/$(VENDOR)/common/Makefile),y,n)
 232
 233 LIBS-y += lib/
 234 LIBS-$(HAVE_VENDOR_COMMON_LIB) += board/$(VENDOR)/common/
 235 LIBS-y += $(CPUDIR)/
 236 ifdef SOC
 237 LIBS-y += $(CPUDIR)/$(SOC)/
 238 endif
 239 LIBS-$(CONFIG_IXP4XX_NPE) += drivers/net/npe/
 240 LIBS-$(CONFIG_OF_EMBED) += dts/
 241 LIBS-y += arch/$(ARCH)/lib/
 242 LIBS-y += fs/
 243 LIBS-y += net/
 244 LIBS-y += disk/
 245 LIBS-y += drivers/
 246 LIBS-y += drivers/dma/
 247 LIBS-y += drivers/gpio/
 248 LIBS-y += drivers/i2c/
 249 LIBS-y += drivers/input/
 250 LIBS-y += drivers/mmc/
 251 LIBS-y += drivers/mtd/
 252 LIBS-y += drivers/mtd/nand/
 253 LIBS-y += drivers/mtd/onenand/
 254 LIBS-y += drivers/mtd/ubi/
 255 LIBS-y += drivers/mtd/spi/
 256 LIBS-y += drivers/net/
 257 LIBS-y += drivers/net/phy/
 258 LIBS-y += drivers/pci/
 259 LIBS-y += drivers/power/ \
 260         drivers/power/fuel_gauge/ \
 261         drivers/power/mfd/ \
 262         drivers/power/pmic/ \
 263         drivers/power/battery/
 264 LIBS-y += drivers/spi/
 265 LIBS-$(CONFIG_FMAN_ENET) += drivers/net/fm/
 266 LIBS-$(CONFIG_SYS_FSL_DDR) += drivers/ddr/fsl/
 267 LIBS-y += drivers/serial/
 268 LIBS-y += drivers/usb/eth/
 269 LIBS-y += drivers/usb/gadget/
 270 LIBS-y += drivers/usb/host/
 271 LIBS-y += drivers/usb/musb/
 272 LIBS-y += drivers/usb/musb-new/
 273 LIBS-y += drivers/usb/phy/
 274 LIBS-y += drivers/usb/ulpi/
 275 LIBS-y += common/
 276 LIBS-y += lib/libfdt/
 277 LIBS-$(CONFIG_API) += api/
 278 LIBS-y += post/
 279 LIBS-y += test/
 280
 281 ifneq (,$(filter $(SOC), mx25 mx27 mx5 mx6 mx31 mx35 mxs vf610))
 282 LIBS-y += arch/$(ARCH)/imx-common/
 283 endif
 284
 285 LIBS-$(CONFIG_ARM) += arch/arm/cpu/
 286 LIBS-$(CONFIG_PPC) += arch/powerpc/cpu/
 287
 288 LIBS-y += board/$(BOARDDIR)/
 289
 290 LIBS-y := $(patsubst %/, %/built-in.o, $(LIBS-y))
 291 LIBS := $(addprefix $(obj),$(sort $(LIBS-y)))
 292 .PHONY : $(LIBS)
 293
 294 # Add GCC lib
 295 ifdef USE_PRIVATE_LIBGCC
 296 ifeq ("$(USE_PRIVATE_LIBGCC)", "yes")
 297 PLATFORM_LIBGCC = $(OBJTREE)/arch/$(ARCH)/lib/libgcc.o
 298 else
 299 PLATFORM_LIBGCC = -L $(USE_PRIVATE_LIBGCC) -lgcc
 300 endif
 301 else
 302 PLATFORM_LIBGCC := -L $(shell dirname `$(CC) $(CFLAGS) -print-libgcc-file-name`) -lgcc
 303 endif
 304 PLATFORM_LIBS += $(PLATFORM_LIBGCC)
 305 export PLATFORM_LIBS
 306
 307 # Special flags for CPP when processing the linker script.
 308 # Pass the version down so we can handle backwards compatibility
 309 # on the fly.
 310 LDPPFLAGS += \
 311         -include $(TOPDIR)/include/u-boot/u-boot.lds.h \
 312         -DCPUDIR=$(CPUDIR) \
 313         $(shell $(LD) --version | \
 314           sed -ne 's/GNU ld version \([0-9][0-9]*\)\.\([0-9][0-9]*\).*/-DLD_MAJOR=\1 -DLD_MINOR=\2/p')
 315
 316 __OBJS := $(subst $(obj),,$(OBJS))
 317 __LIBS := $(subst $(obj),,$(LIBS))
 318
 319 #########################################################################
 320 #########################################################################
 321
 322 ifneq ($(CONFIG_BOARD_SIZE_LIMIT),)
 323 BOARD_SIZE_CHECK = \
 324         @actual=`wc -c $@ | awk '{print $$1}'`; \
 325         limit=`printf "%d" $(CONFIG_BOARD_SIZE_LIMIT)`; \
 326         if test $$actual -gt $$limit; then \
 327                 echo "$@ exceeds file size limit:" >&2 ; \
 328                 echo "  limit:  $$limit bytes" >&2 ; \
 329                 echo "  actual: $$actual bytes" >&2 ; \
 330                 echo "  excess: $$((actual - limit)) bytes" >&2; \
 331                 exit 1; \
 332         fi
 333 else
 334 BOARD_SIZE_CHECK =
 335 endif
 336
 337 # Statically apply RELA-style relocations (currently arm64 only)
 338 ifneq ($(CONFIG_STATIC_RELA),)
 339 # $(1) is u-boot ELF, $(2) is u-boot bin, $(3) is text base
 340 DO_STATIC_RELA = \
 341         start=$$($(NM) $(1) | grep __rel_dyn_start | cut -f 1 -d ' '); \
 342         end=$$($(NM) $(1) | grep __rel_dyn_end | cut -f 1 -d ' '); \
 343         $(obj)tools/relocate-rela $(2) $(3) $$start $$end
 344 else
 345 DO_STATIC_RELA =
 346 endif
 347
 348 # Always append ALL so that arch config.mk's can add custom ones
 349 ALL-y += $(obj)u-boot.srec $(obj)u-boot.bin $(obj)System.map
 350
 351 ALL-$(CONFIG_NAND_U_BOOT) += $(obj)u-boot-nand.bin
 352 ALL-$(CONFIG_ONENAND_U_BOOT) += $(obj)u-boot-onenand.bin
 353 ALL-$(CONFIG_RAMBOOT_PBL) += $(obj)u-boot.pbl
 354 ALL-$(CONFIG_SPL) += $(obj)spl/u-boot-spl.bin
 355 ALL-$(CONFIG_SPL_FRAMEWORK) += $(obj)u-boot.img
 356 ALL-$(CONFIG_TPL) += $(obj)tpl/u-boot-tpl.bin
 357 ALL-$(CONFIG_OF_SEPARATE) += $(obj)u-boot.dtb $(obj)u-boot-dtb.bin
 358 ifneq ($(CONFIG_SPL_TARGET),)
 359 ALL-$(CONFIG_SPL) += $(obj)$(subst ",,$(CONFIG_SPL_TARGET))
 360 endif
 361 ALL-$(CONFIG_REMAKE_ELF) += $(obj)u-boot.elf
 362
 363 # enable combined SPL/u-boot/dtb rules for tegra
 364 ifneq ($(CONFIG_TEGRA),)
 365 ifeq ($(CONFIG_SPL),y)
 366 ifeq ($(CONFIG_OF_SEPARATE),y)
 367 ALL-y += $(obj)u-boot-dtb-tegra.bin
 368 else
 369 ALL-y += $(obj)u-boot-nodtb-tegra.bin
 370 endif
 371 endif
 372 endif
 373
 374 build := -f $(TOPDIR)/scripts/Makefile.build -C
 375
 376 all:            $(ALL-y) $(SUBDIR_EXAMPLES-y)
 377
 378 $(obj)u-boot.dtb:       checkdtc $(obj)u-boot
 379                 $(MAKE) $(build) dts binary
 380                 mv $(obj)dts/dt.dtb $@
 381
 382 $(obj)u-boot-dtb.bin:   $(obj)u-boot.bin $(obj)u-boot.dtb
 383                 cat $^ >$@
 384
 385 $(obj)u-boot.hex:       $(obj)u-boot
 386                 $(OBJCOPY) ${OBJCFLAGS} -O ihex $< $@
 387
 388 $(obj)u-boot.srec:      $(obj)u-boot
 389                 $(OBJCOPY) ${OBJCFLAGS} -O srec $< $@
 390
 391 $(obj)u-boot.bin:       $(obj)u-boot
 392                 $(OBJCOPY) ${OBJCFLAGS} -O binary $< $@
 393                 $(call DO_STATIC_RELA,$<,$@,$(CONFIG_SYS_TEXT_BASE))
 394                 $(BOARD_SIZE_CHECK)
 395
 396 $(obj)u-boot.ldr:       $(obj)u-boot
 397                 $(CREATE_LDR_ENV)
 398                 $(LDR) -T $(CONFIG_BFIN_CPU) -c $@ $< $(LDR_FLAGS)
 399                 $(BOARD_SIZE_CHECK)
 400
 401 $(obj)u-boot.ldr.hex:   $(obj)u-boot.ldr
 402                 $(OBJCOPY) ${OBJCFLAGS} -O ihex $< $@ -I binary
 403
 404 $(obj)u-boot.ldr.srec:  $(obj)u-boot.ldr
 405                 $(OBJCOPY) ${OBJCFLAGS} -O srec $< $@ -I binary
 406
 407 #
 408 # U-Boot entry point, needed for booting of full-blown U-Boot
 409 # from the SPL U-Boot version.
 410 #
 411 ifndef CONFIG_SYS_UBOOT_START
 412 CONFIG_SYS_UBOOT_START := 0
 413 endif
 414
 415 $(obj)u-boot.img:       $(obj)u-boot.bin
 416                 $(obj)tools/mkimage -A $(ARCH) -T firmware -C none \
 417                 -O u-boot -a $(CONFIG_SYS_TEXT_BASE) \
 418                 -e $(CONFIG_SYS_UBOOT_START) \
 419                 -n $(shell sed -n -e 's/.*U_BOOT_VERSION//p' $(VERSION_FILE) | \
 420                         sed -e 's/"[     ]*$$/ for $(BOARD) board"/') \
 421                 -d $< $@
 422
 423 $(obj)u-boot.imx: $(obj)u-boot.bin depend
 424                 $(MAKE) $(build) $(SRCTREE)/arch/arm/imx-common $(OBJTREE)/u-boot.imx
 425
 426 $(obj)u-boot.kwb:       $(obj)u-boot.bin
 427                 $(obj)tools/mkimage -n $(CONFIG_SYS_KWD_CONFIG) -T kwbimage \
 428                 -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE) -d $< $@
 429
 430 $(obj)u-boot.pbl:       $(obj)u-boot.bin
 431                 $(obj)tools/mkimage -n $(CONFIG_PBLRCW_CONFIG) \
 432                 -R $(CONFIG_PBLPBI_CONFIG) -T pblimage \
 433                 -d $< $@
 434
 435 $(obj)u-boot.sha1:      $(obj)u-boot.bin
 436                 $(obj)tools/ubsha1 $(obj)u-boot.bin
 437
 438 $(obj)u-boot.dis:       $(obj)u-boot
 439                 $(OBJDUMP) -d $< > $@
 440
 441 # $@ is output, $(1) and $(2) are inputs, $(3) is padded intermediate,
 442 # $(4) is pad-to
 443 SPL_PAD_APPEND = \
 444                 $(OBJCOPY) ${OBJCFLAGS} --pad-to=$(4) -I binary -O binary \
 445                 $(1) $(obj)$(3); \
 446                 cat $(obj)$(3) $(2) > $@; \
 447                 rm $(obj)$(3)
 448
 449 ifdef CONFIG_TPL
 450 SPL_PAYLOAD := $(obj)tpl/u-boot-with-tpl.bin
 451 else
 452 SPL_PAYLOAD := $(obj)u-boot.bin
 453 endif
 454
 455 $(obj)u-boot-with-spl.bin: $(obj)spl/u-boot-spl.bin $(SPL_PAYLOAD)
 456                 $(call SPL_PAD_APPEND,$<,$(SPL_PAYLOAD),spl/u-boot-spl-pad.bin,$(CONFIG_SPL_PAD_TO))
 457
 458 $(obj)tpl/u-boot-with-tpl.bin: $(obj)tpl/u-boot-tpl.bin $(obj)u-boot.bin
 459                 $(call SPL_PAD_APPEND,$<,$(obj)u-boot.bin,tpl/u-boot-tpl-pad.bin,$(CONFIG_TPL_PAD_TO))
 460
 461 $(obj)u-boot-with-spl.imx: $(obj)spl/u-boot-spl.bin $(obj)u-boot.bin
 462                 $(MAKE) $(build) $(SRCTREE)/arch/arm/imx-common \
 463                         $(OBJTREE)/u-boot-with-spl.imx
 464
 465 $(obj)u-boot-with-nand-spl.imx: $(obj)spl/u-boot-spl.bin $(obj)u-boot.bin
 466                 $(MAKE) $(build) $(SRCTREE)/arch/arm/imx-common \
 467                         $(OBJTREE)/u-boot-with-nand-spl.imx
 468
 469 $(obj)u-boot.ubl:       $(obj)u-boot-with-spl.bin
 470                 $(obj)tools/mkimage -n $(UBL_CONFIG) -T ublimage \
 471                 -e $(CONFIG_SYS_TEXT_BASE) -d $< $(obj)u-boot.ubl
 472
 473 $(obj)u-boot.ais:       $(obj)spl/u-boot-spl.bin $(obj)u-boot.img
 474                 $(obj)tools/mkimage -s -n $(if $(CONFIG_AIS_CONFIG_FILE),$(CONFIG_AIS_CONFIG_FILE),"/dev/null") \
 475                         -T aisimage \
 476                         -e $(CONFIG_SPL_TEXT_BASE) \
 477                         -d $(obj)spl/u-boot-spl.bin \
 478                         $(obj)spl/u-boot-spl.ais
 479                 $(OBJCOPY) ${OBJCFLAGS} -I binary \
 480                         --pad-to=$(CONFIG_SPL_MAX_SIZE) -O binary \
 481                         $(obj)spl/u-boot-spl.ais $(obj)spl/u-boot-spl-pad.ais
 482                 cat $(obj)spl/u-boot-spl-pad.ais $(obj)u-boot.img > \
 483                         $(obj)u-boot.ais
 484
 485
 486 $(obj)u-boot.sb:       $(obj)u-boot.bin $(obj)spl/u-boot-spl.bin
 487                 $(MAKE) $(build) $(SRCTREE)/$(CPUDIR)/$(SOC)/ $(OBJTREE)/u-boot.sb
 488
 489 # On x600 (SPEAr600) U-Boot is appended to U-Boot SPL.
 490 # Both images are created using mkimage (crc etc), so that the ROM
 491 # bootloader can check its integrity. Padding needs to be done to the
 492 # SPL image (with mkimage header) and not the binary. Otherwise the resulting image
 493 # which is loaded/copied by the ROM bootloader to SRAM doesn't fit.
 494 # The resulting image containing both U-Boot images is called u-boot.spr
 495 $(obj)u-boot.spr:       $(obj)u-boot.img $(obj)spl/u-boot-spl.bin
 496                 $(obj)tools/mkimage -A $(ARCH) -T firmware -C none \
 497                 -a $(CONFIG_SPL_TEXT_BASE) -e $(CONFIG_SPL_TEXT_BASE) -n XLOADER \
 498                 -d $(obj)spl/u-boot-spl.bin $(obj)spl/u-boot-spl.img
 499                 tr "\000" "\377" < /dev/zero | dd ibs=1 count=$(CONFIG_SPL_PAD_TO) \
 500                         of=$(obj)spl/u-boot-spl-pad.img 2>/dev/null
 501                 dd if=$(obj)spl/u-boot-spl.img of=$(obj)spl/u-boot-spl-pad.img \
 502                         conv=notrunc 2>/dev/null
 503                 cat $(obj)spl/u-boot-spl-pad.img $(obj)u-boot.img > $@
 504
 505 ifneq ($(CONFIG_TEGRA),)
 506 $(obj)u-boot-nodtb-tegra.bin: $(obj)spl/u-boot-spl.bin $(obj)u-boot.bin
 507                 $(OBJCOPY) ${OBJCFLAGS} --pad-to=$(CONFIG_SYS_TEXT_BASE) -O binary $(obj)spl/u-boot-spl $(obj)spl/u-boot-spl-pad.bin
 508                 cat $(obj)spl/u-boot-spl-pad.bin $(obj)u-boot.bin > $@
 509                 rm $(obj)spl/u-boot-spl-pad.bin
 510
 511 ifeq ($(CONFIG_OF_SEPARATE),y)
 512 $(obj)u-boot-dtb-tegra.bin: $(obj)u-boot-nodtb-tegra.bin $(obj)u-boot.dtb
 513                 cat $(obj)u-boot-nodtb-tegra.bin $(obj)u-boot.dtb > $@
 514 endif
 515 endif
 516
 517 $(obj)u-boot-img.bin: $(obj)spl/u-boot-spl.bin $(obj)u-boot.img
 518                 cat $(obj)spl/u-boot-spl.bin $(obj)u-boot.img > $@
 519
 520 # PPC4xx needs the SPL at the end of the image, since the reset vector
 521 # is located at 0xfffffffc. So we can't use the "u-boot-img.bin" target
 522 # and need to introduce a new build target with the full blown U-Boot
 523 # at the start padded up to the start of the SPL image. And then concat
 524 # the SPL image to the end.
 525 $(obj)u-boot-img-spl-at-end.bin: $(obj)spl/u-boot-spl.bin $(obj)u-boot.img
 526                 tr "\000" "\377" < /dev/zero | dd ibs=1 count=$(CONFIG_UBOOT_PAD_TO) \
 527                         of=$(obj)u-boot-pad.img 2>/dev/null
 528                 dd if=$(obj)u-boot.img of=$(obj)u-boot-pad.img \
 529                         conv=notrunc 2>/dev/null
 530                 cat $(obj)u-boot-pad.img $(obj)spl/u-boot-spl.bin > $@
 531
 532 # Create a new ELF from a raw binary file.  This is useful for arm64
 533 # where static relocation needs to be performed on the raw binary,
 534 # but certain simulators only accept an ELF file (but don't do the
 535 # relocation).
 536 # FIXME refactor dts/Makefile to share target/arch detection
 537 $(obj)u-boot.elf: $(obj)u-boot.bin
 538         @$(OBJCOPY)  -B aarch64 -I binary -O elf64-littleaarch64 \
 539                 $< $(obj)u-boot-elf.o
 540         @$(LD) $(obj)u-boot-elf.o -o $@ \
 541                 --defsym=_start=$(CONFIG_SYS_TEXT_BASE) \
 542                 -Ttext=$(CONFIG_SYS_TEXT_BASE)
 543
 544 ifeq ($(CONFIG_SANDBOX),y)
 545 GEN_UBOOT = \
 546                 cd $(LNDIR) && $(CC) $(SYMS) -T $(obj)u-boot.lds \
 547                         -Wl,--start-group $(__LIBS) -Wl,--end-group \
 548                         $(PLATFORM_LIBS) -Wl,-Map -Wl,u-boot.map -o u-boot
 549 else
 550 GEN_UBOOT = \
 551                 cd $(LNDIR) && $(LD) $(LDFLAGS) $(LDFLAGS_$(@F)) \
 552                         $(__OBJS) \
 553                         --start-group $(__LIBS) --end-group $(PLATFORM_LIBS) \
 554                         -Map u-boot.map -o u-boot
 555 endif
 556
 557 $(obj)u-boot:   depend \
 558                 $(SUBDIR_TOOLS) $(OBJS) $(LIBS) $(LDSCRIPT) $(obj)u-boot.lds
 559                 $(GEN_UBOOT)
 560 ifeq ($(CONFIG_KALLSYMS),y)
 561                 smap=`$(call SYSTEM_MAP,$(obj)u-boot) | \
 562                         awk '$$2 ~ /[tTwW]/ {printf $$1 $$3 "\\\\000"}'` ; \
 563                 $(CC) $(CFLAGS) -DSYSTEM_MAP="\"$${smap}\"" \
 564                         -c common/system_map.c -o $(obj)common/system_map.o
 565                 $(GEN_UBOOT) $(obj)common/system_map.o
 566 endif
 567
 568 $(OBJS):
 569         @:
 570
 571 $(LIBS):        depend $(SUBDIR_TOOLS)
 572                 $(MAKE) $(build) $(dir $(subst $(obj),,$@))
 573
 574 $(SUBDIRS):     depend
 575                 $(MAKE) -C $@ all
 576
 577 $(SUBDIR_EXAMPLES-y): $(obj)u-boot
 578
 579 $(LDSCRIPT):    depend
 580                 $(MAKE) -C $(dir $@) $(notdir $@)
 581
 582 $(obj)u-boot.lds: $(LDSCRIPT)
 583                 $(CPP) $(CPPFLAGS) $(LDPPFLAGS) -ansi -D__ASSEMBLY__ -P - <$< >$@
 584
 585 nand_spl:       $(TIMESTAMP_FILE) $(VERSION_FILE) depend
 586                 $(MAKE) -C nand_spl/board/$(BOARDDIR) all
 587
 588 $(obj)u-boot-nand.bin:  nand_spl $(obj)u-boot.bin
 589                 cat $(obj)nand_spl/u-boot-spl-16k.bin $(obj)u-boot.bin > $(obj)u-boot-nand.bin
 590
 591 $(obj)spl/u-boot-spl.bin:       $(SUBDIR_TOOLS) depend
 592                 $(MAKE) -C spl all
 593
 594 $(obj)tpl/u-boot-tpl.bin:       $(SUBDIR_TOOLS) depend
 595                 $(MAKE) -C spl all CONFIG_TPL_BUILD=y
 596
 597 # Explicitly make _depend in subdirs containing multiple targets to prevent
 598 # parallel sub-makes creating .depend files simultaneously.
 599 depend dep:     $(TIMESTAMP_FILE) $(VERSION_FILE) \
 600                 $(obj)include/spl-autoconf.mk \
 601                 $(obj)include/tpl-autoconf.mk \
 602                 $(obj)include/autoconf.mk \
 603                 $(obj)include/generated/generic-asm-offsets.h \
 604                 $(obj)include/generated/asm-offsets.h
 605
 606 TAG_SUBDIRS = $(SUBDIRS)
 607 TAG_SUBDIRS += $(dir $(__LIBS))
 608 TAG_SUBDIRS += include
 609
 610 FIND := find
 611 FINDFLAGS := -L
 612
 613 checkstack:
 614                 $(CROSS_COMPILE)objdump -d $(obj)u-boot \
 615                         `$(FIND) $(obj) -name u-boot-spl -print` | \
 616                         perl $(src)tools/checkstack.pl $(ARCH)
 617
 618 tags ctags:
 619                 ctags -w -o $(obj)ctags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \
 620                                                 -name '*.[chS]' -print`
 621
 622 etags:
 623                 etags -a -o $(obj)etags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \
 624                                                 -name '*.[chS]' -print`
 625 cscope:
 626                 $(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) -name '*.[chS]' -print > \
 627                                                 cscope.files
 628                 cscope -b -q -k
 629
 630 SYSTEM_MAP = \
 631                 $(NM) $1 | \
 632                 grep -v '\(compiled\)\|\(\.o$$\)\|\( [aUw] \)\|\(\.\.ng$$\)\|\(LASH[RL]DI\)' | \
 633                 LC_ALL=C sort
 634 $(obj)System.map:       $(obj)u-boot
 635                 @$(call SYSTEM_MAP,$<) > $@
 636
 637 checkthumb:
 638         @if test $(call cc-version) -lt 0404; then \
 639                 echo -n '*** Your GCC does not produce working '; \
 640                 echo 'binaries in THUMB mode.'; \
 641                 echo '*** Your board is configured for THUMB mode.'; \
 642                 false; \
 643         fi
 644
 645 # GCC 3.x is reported to have problems generating the type of relocation
 646 # that U-Boot wants.
 647 # See http://lists.denx.de/pipermail/u-boot/2012-September/135156.html
 648 checkgcc4:
 649         @if test $(call cc-version) -lt 0400; then \
 650                 echo -n '*** Your GCC is too old, please upgrade to GCC 4.x or newer'; \
 651                 false; \
 652         fi
 653
 654 checkdtc:
 655         @if test $(call dtc-version) -lt 0104; then \
 656                 echo '*** Your dtc is too old, please upgrade to dtc 1.4 or newer'; \
 657                 false; \
 658         fi
 659
 660 #
 661 # Auto-generate the autoconf.mk file (which is included by all makefiles)
 662 #
 663 # This target actually generates 2 files; autoconf.mk and autoconf.mk.dep.
 664 # the dep file is only include in this top level makefile to determine when
 665 # to regenerate the autoconf.mk file.
 666 $(obj)include/autoconf.mk.dep: $(obj)include/config.h include/common.h
 667         @$(XECHO) Generating $@ ; \
 668         set -e ; \
 669         : Generate the dependancies ; \
 670         $(CC) -x c -DDO_DEPS_ONLY -M $(CFLAGS) $(CPPFLAGS) \
 671                 -MQ $(obj)include/autoconf.mk include/common.h > $@
 672
 673 $(obj)include/autoconf.mk: $(obj)include/config.h
 674         @$(XECHO) Generating $@ ; \
 675         set -e ; \
 676         : Extract the config macros ; \
 677         $(CPP) $(CFLAGS) -DDO_DEPS_ONLY -dM include/common.h | \
 678                 sed -n -f tools/scripts/define2mk.sed > $@.tmp && \
 679         mv $@.tmp $@
 680
 681 # Auto-generate the spl-autoconf.mk file (which is included by all makefiles for SPL)
 682 $(obj)include/tpl-autoconf.mk: $(obj)include/config.h
 683         @$(XECHO) Generating $@ ; \
 684         set -e ; \
 685         : Extract the config macros ; \
 686         $(CPP) $(CFLAGS) -DCONFIG_TPL_BUILD  -DCONFIG_SPL_BUILD\
 687                         -DDO_DEPS_ONLY -dM include/common.h | \
 688         sed -n -f tools/scripts/define2mk.sed > $@.tmp && \
 689         mv $@.tmp $@
 690
 691 $(obj)include/spl-autoconf.mk: $(obj)include/config.h
 692         @$(XECHO) Generating $@ ; \
 693         set -e ; \
 694         : Extract the config macros ; \
 695         $(CPP) $(CFLAGS) -DCONFIG_SPL_BUILD -DDO_DEPS_ONLY -dM include/common.h | \
 696         sed -n -f tools/scripts/define2mk.sed > $@.tmp && \
 697         mv $@.tmp $@
 698
 699 $(obj)include/generated/generic-asm-offsets.h:  $(obj)include/autoconf.mk.dep \
 700         $(obj)include/spl-autoconf.mk \
 701         $(obj)include/tpl-autoconf.mk \
 702         $(obj)lib/asm-offsets.s
 703         @$(XECHO) Generating $@
 704         tools/scripts/make-asm-offsets $(obj)lib/asm-offsets.s $@
 705
 706 $(obj)lib/asm-offsets.s:        $(obj)include/autoconf.mk.dep \
 707         $(obj)include/spl-autoconf.mk \
 708         $(obj)include/tpl-autoconf.mk \
 709         $(src)lib/asm-offsets.c
 710         @mkdir -p $(obj)lib
 711         $(CC) -DDO_DEPS_ONLY \
 712                 $(CFLAGS) $(CFLAGS_$(BCURDIR)/$(@F)) $(CFLAGS_$(BCURDIR)) \
 713                 -o $@ $(src)lib/asm-offsets.c -c -S
 714
 715 $(obj)include/generated/asm-offsets.h:  $(obj)include/autoconf.mk.dep \
 716         $(obj)include/spl-autoconf.mk \
 717         $(obj)include/tpl-autoconf.mk \
 718         $(obj)$(CPUDIR)/$(SOC)/asm-offsets.s
 719         @$(XECHO) Generating $@
 720         tools/scripts/make-asm-offsets $(obj)$(CPUDIR)/$(SOC)/asm-offsets.s $@
 721
 722 $(obj)$(CPUDIR)/$(SOC)/asm-offsets.s:   $(obj)include/autoconf.mk.dep \
 723         $(obj)include/spl-autoconf.mk \
 724         $(obj)include/tpl-autoconf.mk
 725         @mkdir -p $(obj)$(CPUDIR)/$(SOC)
 726         if [ -f $(src)$(CPUDIR)/$(SOC)/asm-offsets.c ];then \
 727                 $(CC) -DDO_DEPS_ONLY \
 728                 $(CFLAGS) $(CFLAGS_$(BCURDIR)/$(@F)) $(CFLAGS_$(BCURDIR)) \
 729                         -o $@ $(src)$(CPUDIR)/$(SOC)/asm-offsets.c -c -S; \
 730         else \
 731                 touch $@; \
 732         fi
 733
 734 #########################################################################
 735 else    # !config.mk
 736 all $(obj)u-boot.hex $(obj)u-boot.srec $(obj)u-boot.bin \
 737 $(obj)u-boot.img $(obj)u-boot.dis $(obj)u-boot \
 738 $(filter-out tools,$(SUBDIRS)) \
 739 depend dep tags ctags etags cscope $(obj)System.map:
 740         @echo "System not configured - see README" >&2
 741         @ exit 1
 742
 743 tools: $(VERSION_FILE) $(TIMESTAMP_FILE)
 744         $(MAKE) -C $@ all
 745 endif   # config.mk
 746
 747 # ARM relocations should all be R_ARM_RELATIVE (32-bit) or
 748 # R_AARCH64_RELATIVE (64-bit).
 749 checkarmreloc: $(obj)u-boot
 750         @RELOC="`$(CROSS_COMPILE)readelf -r -W $< | cut -d ' ' -f 4 | \
 751                 grep R_A | sort -u`"; \
 752         if test "$$RELOC" != "R_ARM_RELATIVE" -a \
 753                  "$$RELOC" != "R_AARCH64_RELATIVE"; then \
 754                 echo "$< contains unexpected relocations: $$RELOC"; \
 755                 false; \
 756         fi
 757
 758 $(VERSION_FILE):
 759                 @mkdir -p $(dir $(VERSION_FILE))
 760                 @( localvers='$(shell $(TOPDIR)/tools/setlocalversion $(TOPDIR))' ; \
 761                    printf '#define PLAIN_VERSION "%s%s"\n' \
 762                         "$(U_BOOT_VERSION)" "$${localvers}" ; \
 763                    printf '#define U_BOOT_VERSION "U-Boot %s%s"\n' \
 764                         "$(U_BOOT_VERSION)" "$${localvers}" ; \
 765                 ) > $@.tmp
 766                 @( printf '#define CC_VERSION_STRING "%s"\n' \
 767                  '$(shell $(CC) --version | head -n 1)' )>>  $@.tmp
 768                 @( printf '#define LD_VERSION_STRING "%s"\n' \
 769                  '$(shell $(LD) -v | head -n 1)' )>>  $@.tmp
 770                 @cmp -s $@ $@.tmp && rm -f $@.tmp || mv -f $@.tmp $@
 771
 772 $(TIMESTAMP_FILE):
 773                 @mkdir -p $(dir $(TIMESTAMP_FILE))
 774                 @LC_ALL=C date +'#define U_BOOT_DATE "%b %d %C%y"' > $@.tmp
 775                 @LC_ALL=C date +'#define U_BOOT_TIME "%T"' >> $@.tmp
 776                 @cmp -s $@ $@.tmp && rm -f $@.tmp || mv -f $@.tmp $@
 777
 778 easylogo env gdb:
 779         $(MAKE) -C tools/$@ all MTD_VERSION=${MTD_VERSION}
 780 gdbtools: gdb
 781
 782 xmldocs pdfdocs psdocs htmldocs mandocs: tools/kernel-doc/docproc
 783         $(MAKE) U_BOOT_VERSION=$(U_BOOT_VERSION) -C doc/DocBook/ $@
 784
 785 tools-all: easylogo env gdb $(VERSION_FILE) $(TIMESTAMP_FILE)
 786         $(MAKE) -C tools HOST_TOOLS_ALL=y
 787
 788 .PHONY : CHANGELOG
 789 CHANGELOG:
 790         git log --no-merges U-Boot-1_1_5.. | \
 791         unexpand -a | sed -e 's/\s\s*$$//' > $@
 792
 793 include/license.h: tools/bin2header COPYING
 794         cat COPYING | gzip -9 -c | ./tools/bin2header license_gzip > include/license.h
 795 #########################################################################
 796
 797 unconfig:
 798         @rm -f $(obj)include/config.h $(obj)include/config.mk \
 799                 $(obj)board/*/config.tmp $(obj)board/*/*/config.tmp \
 800                 $(obj)include/autoconf.mk $(obj)include/autoconf.mk.dep \
 801                 $(obj)include/spl-autoconf.mk \
 802                 $(obj)include/tpl-autoconf.mk
 803
 804 %_config::      unconfig
 805         @$(MKCONFIG) -A $(@:_config=)
 806
 807 sinclude $(obj).boards.depend
 808 $(obj).boards.depend:   boards.cfg
 809         @awk '(NF && $$1 !~ /^#/) { print $$7 ": " $$7 "_config; $$(MAKE)" }' $< > $@
 810
 811 #########################################################################
 812 #########################################################################
 813
 814 clean:
 815         @rm -f $(obj)examples/standalone/82559_eeprom                     \
 816                $(obj)examples/standalone/atmel_df_pow2                    \
 817                $(obj)examples/standalone/eepro100_eeprom                  \
 818                $(obj)examples/standalone/hello_world                      \
 819                $(obj)examples/standalone/interrupt                        \
 820                $(obj)examples/standalone/mem_to_mem_idma2intr             \
 821                $(obj)examples/standalone/sched                            \
 822                $(obj)examples/standalone/smc911{11,x}_eeprom              \
 823                $(obj)examples/standalone/test_burst                       \
 824                $(obj)examples/standalone/timer
 825         @rm -f $(obj)examples/api/demo{,.bin}
 826         @rm -f $(obj)tools/bmp_logo        $(obj)tools/easylogo/easylogo  \
 827                $(obj)tools/env/{fw_printenv,fw_setenv}                    \
 828                $(obj)tools/envcrc                                         \
 829                $(obj)tools/gdb/{astest,gdbcont,gdbsend}                   \
 830                $(obj)tools/gen_eth_addr    $(obj)tools/img2srec           \
 831                $(obj)tools/mk{env,}image   $(obj)tools/mpc86x_clk         \
 832                $(obj)tools/mk{$(BOARD),}spl                               \
 833                $(obj)tools/mxsboot                                        \
 834                $(obj)tools/ncb             $(obj)tools/ubsha1             \
 835                $(obj)tools/kernel-doc/docproc                             \
 836                $(obj)tools/proftool
 837         @rm -f $(obj)board/cray/L1/{bootscript.c,bootscript.image}        \
 838                $(obj)board/matrix_vision/*/bootscript.img                 \
 839                $(obj)board/voiceblue/eeprom                               \
 840                $(obj)u-boot.lds                                           \
 841                $(obj)arch/blackfin/cpu/init.{lds,elf}
 842         @rm -f $(obj)include/bmp_logo.h
 843         @rm -f $(obj)include/bmp_logo_data.h
 844         @rm -f $(obj)lib/asm-offsets.s
 845         @rm -f $(obj)include/generated/asm-offsets.h
 846         @rm -f $(obj)$(CPUDIR)/$(SOC)/asm-offsets.s
 847         @rm -f $(TIMESTAMP_FILE) $(VERSION_FILE)
 848         @$(MAKE) -s -C doc/DocBook/ cleandocs
 849         @find $(OBJTREE) -type f \
 850                 \( -name 'core' -o -name '*.bak' -o -name '*~' -o -name '*.su' \
 851                 -o -name '*.o'  -o -name '*.a' -o -name '*.exe' \
 852                 -o -name '*.cfgtmp' \) -print \
 853                 | xargs rm -f
 854
 855 # Removes everything not needed for testing u-boot
 856 tidy:   clean
 857         @find $(OBJTREE) -type f \( -name '*.depend*' \) -print | xargs rm -f
 858
 859 clobber:        tidy
 860         @find $(OBJTREE) -type f \( -name '*.srec' \
 861                 -o -name '*.bin' -o -name u-boot.img \) \
 862                 -print0 | xargs -0 rm -f
 863         @rm -f $(OBJS) $(obj)*.bak $(obj)ctags $(obj)etags $(obj)TAGS \
 864                 $(obj)cscope.* $(obj)*.*~
 865         @rm -f $(obj)u-boot $(obj)u-boot.map $(obj)u-boot.hex $(ALL-y)
 866         @rm -f $(obj)u-boot.kwb
 867         @rm -f $(obj)u-boot.pbl
 868         @rm -f $(obj)u-boot.imx
 869         @rm -f $(obj)u-boot-with-spl.imx
 870         @rm -f $(obj)u-boot-with-nand-spl.imx
 871         @rm -f $(obj)u-boot.ubl
 872         @rm -f $(obj)u-boot.ais
 873         @rm -f $(obj)u-boot.dtb
 874         @rm -f $(obj)u-boot.sb
 875         @rm -f $(obj)u-boot.bd
 876         @rm -f $(obj)u-boot.spr
 877         @rm -f $(obj)nand_spl/{u-boot.{lds,lst},System.map}
 878         @rm -f $(obj)nand_spl/{u-boot-nand_spl.lds,u-boot-spl,u-boot-spl.map}
 879         @rm -f $(obj)spl/{u-boot-spl,u-boot-spl.bin,u-boot-spl.map}
 880         @rm -f $(obj)spl/u-boot-spl.lds
 881         @rm -f $(obj)tpl/{u-boot-tpl,u-boot-tpl.bin,u-boot-tpl.map}
 882         @rm -f $(obj)tpl/u-boot-spl.lds
 883         @rm -f $(obj)MLO MLO.byteswap
 884         @rm -f $(obj)SPL
 885         @rm -f $(obj)tools/xway-swap-bytes
 886         @rm -fr $(obj)include/asm/proc $(obj)include/asm/arch $(obj)include/asm
 887         @rm -fr $(obj)include/generated
 888         @[ ! -d $(obj)nand_spl ] || find $(obj)nand_spl -name "*" -type l -print | xargs rm -f
 889         @rm -f $(obj)dts/*.tmp
 890         @rm -f $(obj)spl/u-boot-spl{,-pad}.ais
 891
 892 mrproper \
 893 distclean:      clobber unconfig
 894 ifneq ($(OBJTREE),$(SRCTREE))
 895         rm -rf $(obj)*
 896 endif
 897
 898 backup:
 899         F=`basename $(TOPDIR)` ; cd .. ; \
 900         gtar --force-local -zcvf `LC_ALL=C date "+$$F-%Y-%m-%d-%T.tar.gz"` $$F
 901
 902 #########################################################################