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 =
  12 NAME =
  13
  14 # *DOCUMENTATION*
  15 # To see a list of typical targets execute "make help"
  16 # More info can be located in ./README
  17 # Comments in this file are targeted only to the developer, do not
  18 # expect to learn how to build the kernel reading this file.
  19
  20 # Do not:
  21 # o  use make's built-in rules and variables
  22 #    (this increases performance and avoids hard-to-debug behaviour);
  23 # o  print "Entering directory ...";
  24 MAKEFLAGS += -rR --no-print-directory
  25
  26 # Avoid funny character set dependencies
  27 unexport LC_ALL
  28 LC_COLLATE=C
  29 LC_NUMERIC=C
  30 export LC_COLLATE LC_NUMERIC
  31
  32 # We are using a recursive build, so we need to do a little thinking
  33 # to get the ordering right.
  34 #
  35 # Most importantly: sub-Makefiles should only ever modify files in
  36 # their own directory. If in some directory we have a dependency on
  37 # a file in another dir (which doesn't happen often, but it's often
  38 # unavoidable when linking the built-in.o targets which finally
  39 # turn into vmlinux), we will call a sub make in that other dir, and
  40 # after that we are sure that everything which is in that other dir
  41 # is now up to date.
  42 #
  43 # The only cases where we need to modify files which have global
  44 # effects are thus separated out and done before the recursive
  45 # descending is started. They are now explicitly listed as the
  46 # prepare rule.
  47
  48 # To put more focus on warnings, be less verbose as default
  49 # Use 'make V=1' to see the full commands
  50
  51 ifeq ("$(origin V)", "command line")
  52   KBUILD_VERBOSE = $(V)
  53 endif
  54 ifndef KBUILD_VERBOSE
  55   KBUILD_VERBOSE = 0
  56 endif
  57
  58 # Call a source code checker (by default, "sparse") as part of the
  59 # C compilation.
  60 #
  61 # Use 'make C=1' to enable checking of only re-compiled files.
  62 # Use 'make C=2' to enable checking of *all* source files, regardless
  63 # of whether they are re-compiled or not.
  64 #
  65 # See the file "Documentation/sparse.txt" for more details, including
  66 # where to get the "sparse" utility.
  67
  68 ifeq ("$(origin C)", "command line")
  69   KBUILD_CHECKSRC = $(C)
  70 endif
  71 ifndef KBUILD_CHECKSRC
  72   KBUILD_CHECKSRC = 0
  73 endif
  74
  75 # Use make M=dir to specify directory of external module to build
  76 # Old syntax make ... SUBDIRS=$PWD is still supported
  77 # Setting the environment variable KBUILD_EXTMOD take precedence
  78 ifdef SUBDIRS
  79   KBUILD_EXTMOD ?= $(SUBDIRS)
  80 endif
  81
  82 ifeq ("$(origin M)", "command line")
  83   KBUILD_EXTMOD := $(M)
  84 endif
  85
  86 # kbuild supports saving output files in a separate directory.
  87 # To locate output files in a separate directory two syntaxes are supported.
  88 # In both cases the working directory must be the root of the kernel src.
  89 # 1) O=
  90 # Use "make O=dir/to/store/output/files/"
  91 #
  92 # 2) Set KBUILD_OUTPUT
  93 # Set the environment variable KBUILD_OUTPUT to point to the directory
  94 # where the output files shall be placed.
  95 # export KBUILD_OUTPUT=dir/to/store/output/files/
  96 # make
  97 #
  98 # The O= assignment takes precedence over the KBUILD_OUTPUT environment
  99 # variable.
 100
 101
 102 # KBUILD_SRC is set on invocation of make in OBJ directory
 103 # KBUILD_SRC is not intended to be used by the regular user (for now)
 104 ifeq ($(KBUILD_SRC),)
 105
 106 # OK, Make called in directory where kernel src resides
 107 # Do we want to locate output files in a separate directory?
 108 ifeq ("$(origin O)", "command line")
 109   KBUILD_OUTPUT := $(O)
 110 endif
 111
 112 ifeq ("$(origin W)", "command line")
 113   export KBUILD_ENABLE_EXTRA_GCC_CHECKS := $(W)
 114 endif
 115
 116 # That's our default target when none is given on the command line
 117 PHONY := _all
 118 _all:
 119
 120 # Cancel implicit rules on top Makefile
 121 $(CURDIR)/Makefile Makefile: ;
 122
 123 ifneq ($(KBUILD_OUTPUT),)
 124 # Invoke a second make in the output directory, passing relevant variables
 125 # check that the output directory actually exists
 126 saved-output := $(KBUILD_OUTPUT)
 127 KBUILD_OUTPUT := $(shell cd $(KBUILD_OUTPUT) && /bin/pwd)
 128 $(if $(KBUILD_OUTPUT),, \
 129      $(error output directory "$(saved-output)" does not exist))
 130
 131 PHONY += $(MAKECMDGOALS) sub-make
 132
 133 $(filter-out _all sub-make $(CURDIR)/Makefile, $(MAKECMDGOALS)) _all: sub-make
 134         @:
 135
 136 sub-make: FORCE
 137         $(if $(KBUILD_VERBOSE:1=),@)$(MAKE) -C $(KBUILD_OUTPUT) \
 138         KBUILD_SRC=$(CURDIR) \
 139         KBUILD_EXTMOD="$(KBUILD_EXTMOD)" -f $(CURDIR)/Makefile \
 140         $(filter-out _all sub-make,$(MAKECMDGOALS))
 141
 142 # Leave processing to above invocation of make
 143 skip-makefile := 1
 144 endif # ifneq ($(KBUILD_OUTPUT),)
 145 endif # ifeq ($(KBUILD_SRC),)
 146
 147 # We process the rest of the Makefile if this is the final invocation of make
 148 ifeq ($(skip-makefile),)
 149
 150 # If building an external module we do not care about the all: rule
 151 # but instead _all depend on modules
 152 PHONY += all
 153 ifeq ($(KBUILD_EXTMOD),)
 154 _all: all
 155 else
 156 _all: modules
 157 endif
 158
 159 srctree         := $(if $(KBUILD_SRC),$(KBUILD_SRC),$(CURDIR))
 160 objtree         := $(CURDIR)
 161 src             := $(srctree)
 162 obj             := $(objtree)
 163
 164 VPATH           := $(srctree)$(if $(KBUILD_EXTMOD),:$(KBUILD_EXTMOD))
 165
 166 export srctree objtree VPATH
 167
 168 OBJTREE         := $(objtree)
 169 SPLTREE         := $(OBJTREE)/spl
 170 TPLTREE         := $(OBJTREE)/tpl
 171 SRCTREE         := $(srctree)
 172 TOPDIR          := $(SRCTREE)
 173 export  TOPDIR SRCTREE OBJTREE SPLTREE TPLTREE
 174
 175 MKCONFIG        := $(SRCTREE)/mkconfig
 176 export MKCONFIG
 177
 178 # Make sure CDPATH settings don't interfere
 179 unexport CDPATH
 180
 181 #########################################################################
 182
 183 TIMESTAMP_FILE = include/generated/timestamp_autogenerated.h
 184 VERSION_FILE = include/generated/version_autogenerated.h
 185
 186 HOSTARCH := $(shell uname -m | \
 187         sed -e s/i.86/x86/ \
 188             -e s/sun4u/sparc64/ \
 189             -e s/arm.*/arm/ \
 190             -e s/sa110/arm/ \
 191             -e s/ppc64/powerpc/ \
 192             -e s/ppc/powerpc/ \
 193             -e s/macppc/powerpc/\
 194             -e s/sh.*/sh/)
 195
 196 HOSTOS := $(shell uname -s | tr '[:upper:]' '[:lower:]' | \
 197             sed -e 's/\(cygwin\).*/cygwin/')
 198
 199 export  HOSTARCH HOSTOS
 200
 201 # Deal with colliding definitions from tcsh etc.
 202 VENDOR=
 203
 204 #########################################################################
 205
 206 # set default to nothing for native builds
 207 ifeq ($(HOSTARCH),$(ARCH))
 208 CROSS_COMPILE ?=
 209 endif
 210
 211 # SHELL used by kbuild
 212 CONFIG_SHELL := $(shell if [ -x "$$BASH" ]; then echo $$BASH; \
 213           else if [ -x /bin/bash ]; then echo /bin/bash; \
 214           else echo sh; fi ; fi)
 215
 216 HOSTCC       = gcc
 217 HOSTCFLAGS   = -Wall -Wstrict-prototypes -O2 -fomit-frame-pointer
 218
 219 ifeq ($(HOSTOS),cygwin)
 220 HOSTCFLAGS      += -ansi
 221 endif
 222
 223 # Mac OS X / Darwin's C preprocessor is Apple specific.  It
 224 # generates numerous errors and warnings.  We want to bypass it
 225 # and use GNU C's cpp.  To do this we pass the -traditional-cpp
 226 # option to the compiler.  Note that the -traditional-cpp flag
 227 # DOES NOT have the same semantics as GNU C's flag, all it does
 228 # is invoke the GNU preprocessor in stock ANSI/ISO C fashion.
 229 #
 230 # Apple's linker is similar, thanks to the new 2 stage linking
 231 # multiple symbol definitions are treated as errors, hence the
 232 # -multiply_defined suppress option to turn off this error.
 233 #
 234 ifeq ($(HOSTOS),darwin)
 235 # get major and minor product version (e.g. '10' and '6' for Snow Leopard)
 236 DARWIN_MAJOR_VERSION    = $(shell sw_vers -productVersion | cut -f 1 -d '.')
 237 DARWIN_MINOR_VERSION    = $(shell sw_vers -productVersion | cut -f 2 -d '.')
 238
 239 os_x_before     = $(shell if [ $(DARWIN_MAJOR_VERSION) -le $(1) -a \
 240         $(DARWIN_MINOR_VERSION) -le $(2) ] ; then echo "$(3)"; else echo "$(4)"; fi ;)
 241
 242 # Snow Leopards build environment has no longer restrictions as described above
 243 HOSTCC       = $(call os_x_before, 10, 5, "cc", "gcc")
 244 HOSTCFLAGS  += $(call os_x_before, 10, 4, "-traditional-cpp")
 245 HOSTLDFLAGS += $(call os_x_before, 10, 5, "-multiply_defined suppress")
 246 endif
 247
 248 # Decide whether to build built-in, modular, or both.
 249 # Normally, just do built-in.
 250
 251 KBUILD_MODULES :=
 252 KBUILD_BUILTIN := 1
 253
 254 #       If we have only "make modules", don't compile built-in objects.
 255 #       When we're building modules with modversions, we need to consider
 256 #       the built-in objects during the descend as well, in order to
 257 #       make sure the checksums are up to date before we record them.
 258
 259 ifeq ($(MAKECMDGOALS),modules)
 260   KBUILD_BUILTIN := $(if $(CONFIG_MODVERSIONS),1)
 261 endif
 262
 263 #       If we have "make <whatever> modules", compile modules
 264 #       in addition to whatever we do anyway.
 265 #       Just "make" or "make all" shall build modules as well
 266
 267 # U-Boot does not need modules
 268 #ifneq ($(filter all _all modules,$(MAKECMDGOALS)),)
 269 #  KBUILD_MODULES := 1
 270 #endif
 271
 272 #ifeq ($(MAKECMDGOALS),)
 273 #  KBUILD_MODULES := 1
 274 #endif
 275
 276 export KBUILD_MODULES KBUILD_BUILTIN
 277 export KBUILD_CHECKSRC KBUILD_SRC KBUILD_EXTMOD
 278
 279 # Beautify output
 280 # ---------------------------------------------------------------------------
 281 #
 282 # Normally, we echo the whole command before executing it. By making
 283 # that echo $($(quiet)$(cmd)), we now have the possibility to set
 284 # $(quiet) to choose other forms of output instead, e.g.
 285 #
 286 #         quiet_cmd_cc_o_c = Compiling $(RELDIR)/$@
 287 #         cmd_cc_o_c       = $(CC) $(c_flags) -c -o $@ $<
 288 #
 289 # If $(quiet) is empty, the whole command will be printed.
 290 # If it is set to "quiet_", only the short version will be printed.
 291 # If it is set to "silent_", nothing will be printed at all, since
 292 # the variable $(silent_cmd_cc_o_c) doesn't exist.
 293 #
 294 # A simple variant is to prefix commands with $(Q) - that's useful
 295 # for commands that shall be hidden in non-verbose mode.
 296 #
 297 #       $(Q)ln $@ :<
 298 #
 299 # If KBUILD_VERBOSE equals 0 then the above command will be hidden.
 300 # If KBUILD_VERBOSE equals 1 then the above command is displayed.
 301
 302 ifeq ($(KBUILD_VERBOSE),1)
 303   quiet =
 304   Q =
 305 else
 306   quiet=quiet_
 307   Q = @
 308 endif
 309
 310 # If the user is running make -s (silent mode), suppress echoing of
 311 # commands
 312
 313 ifneq ($(filter s% -s%,$(MAKEFLAGS)),)
 314   quiet=silent_
 315 endif
 316
 317 export quiet Q KBUILD_VERBOSE
 318
 319
 320 # Look for make include files relative to root of kernel src
 321 MAKEFLAGS += --include-dir=$(srctree)
 322
 323 # We need some generic definitions (do not try to remake the file).
 324 $(srctree)/scripts/Kbuild.include: ;
 325 include $(srctree)/scripts/Kbuild.include
 326
 327 # Make variables (CC, etc...)
 328
 329 AS              = $(CROSS_COMPILE)as
 330 # Always use GNU ld
 331 ifneq ($(shell $(CROSS_COMPILE)ld.bfd -v 2> /dev/null),)
 332 LD              = $(CROSS_COMPILE)ld.bfd
 333 else
 334 LD              = $(CROSS_COMPILE)ld
 335 endif
 336 CC              = $(CROSS_COMPILE)gcc
 337 CPP             = $(CC) -E
 338 AR              = $(CROSS_COMPILE)ar
 339 NM              = $(CROSS_COMPILE)nm
 340 LDR             = $(CROSS_COMPILE)ldr
 341 STRIP           = $(CROSS_COMPILE)strip
 342 OBJCOPY         = $(CROSS_COMPILE)objcopy
 343 OBJDUMP         = $(CROSS_COMPILE)objdump
 344 AWK             = awk
 345 RANLIB          = $(CROSS_COMPILE)RANLIB
 346 DTC             = dtc
 347 CHECK           = sparse
 348
 349 CHECKFLAGS     := -D__linux__ -Dlinux -D__STDC__ -Dunix -D__unix__ \
 350                   -Wbitwise -Wno-return-void -D__CHECK_ENDIAN__ $(CF)
 351
 352 KBUILD_CPPFLAGS := -D__KERNEL__
 353
 354 KBUILD_CFLAGS   := -Wall -Wstrict-prototypes \
 355                    -Wno-format-security \
 356                    -fno-builtin -ffreestanding
 357 KBUILD_AFLAGS   := -D__ASSEMBLY__
 358
 359 U_BOOT_VERSION = $(VERSION)$(if $(PATCHLEVEL),.$(PATCHLEVEL)$(if $(SUBLEVEL),.$(SUBLEVEL)))$(EXTRAVERSION)
 360
 361 export VERSION PATCHLEVEL SUBLEVEL U_BOOT_VERSION
 362 export ARCH CPU BOARD VENDOR SOC
 363 export CONFIG_SHELL HOSTCC HOSTCFLAGS HOSTLDFLAGS CROSS_COMPILE AS LD CC
 364 export CPP AR NM LDR STRIP OBJCOPY OBJDUMP
 365 export MAKE AWK
 366 export DTC CHECK CHECKFLAGS
 367
 368 export KBUILD_CPPFLAGS NOSTDINC_FLAGS UBOOTINCLUDE
 369 export KBUILD_CFLAGS KBUILD_AFLAGS
 370
 371 # When compiling out-of-tree modules, put MODVERDIR in the module
 372 # tree rather than in the kernel tree. The kernel tree might
 373 # even be read-only.
 374 export MODVERDIR := $(if $(KBUILD_EXTMOD),$(firstword $(KBUILD_EXTMOD))/).tmp_versions
 375
 376 # Files to ignore in find ... statements
 377
 378 RCS_FIND_IGNORE := \( -name SCCS -o -name BitKeeper -o -name .svn -o -name CVS \
 379                    -o -name .pc -o -name .hg -o -name .git \) -prune -o
 380 export RCS_TAR_IGNORE := --exclude SCCS --exclude BitKeeper --exclude .svn \
 381                          --exclude CVS --exclude .pc --exclude .hg --exclude .git
 382
 383 # ===========================================================================
 384 # Rules shared between *config targets and build targets
 385
 386 # Basic helpers built in scripts/
 387 PHONY += scripts_basic
 388 scripts_basic:
 389         $(Q)$(MAKE) $(build)=scripts/basic
 390         $(Q)rm -f .tmp_quiet_recordmcount
 391
 392 # To avoid any implicit rule to kick in, define an empty command.
 393 scripts/basic/%: scripts_basic ;
 394
 395 # To make sure we do not include .config for any of the *config targets
 396 # catch them early, and hand them over to scripts/kconfig/Makefile
 397 # It is allowed to specify more targets when calling make, including
 398 # mixing *config targets and build targets.
 399 # For example 'make oldconfig all'.
 400 # Detect when mixed targets is specified, and make a second invocation
 401 # of make so .config is not included in this case either (for *config).
 402
 403 no-dot-config-targets := clean clobber mrproper distclean \
 404                          cscope TAGS %tags help %docs check% coccicheck \
 405                          backup
 406
 407 config-targets := 0
 408 mixed-targets  := 0
 409 dot-config     := 1
 410
 411 ifneq ($(filter $(no-dot-config-targets), $(MAKECMDGOALS)),)
 412         ifeq ($(filter-out $(no-dot-config-targets), $(MAKECMDGOALS)),)
 413                 dot-config := 0
 414         endif
 415 endif
 416
 417 ifeq ($(KBUILD_EXTMOD),)
 418         ifneq ($(filter config %config,$(MAKECMDGOALS)),)
 419                 config-targets := 1
 420                 ifneq ($(filter-out config %config,$(MAKECMDGOALS)),)
 421                         mixed-targets := 1
 422                 endif
 423         endif
 424 endif
 425
 426 ifeq ($(mixed-targets),1)
 427 # ===========================================================================
 428 # We're called with mixed targets (*config and build targets).
 429 # Handle them one by one.
 430
 431 PHONY += $(MAKECMDGOALS) build-one-by-one
 432
 433 $(MAKECMDGOALS): build-one-by-one
 434         @:
 435
 436 build-one-by-one:
 437         $(Q)set -e; \
 438         for i in $(MAKECMDGOALS); do \
 439                 $(MAKE) -f $(srctree)/Makefile $$i; \
 440         done
 441
 442 else
 443 ifeq ($(config-targets),1)
 444 # ===========================================================================
 445 # *config targets only - make sure prerequisites are updated, and descend
 446 # in scripts/kconfig to make the *config target
 447
 448 # Read arch specific Makefile to set KBUILD_DEFCONFIG as needed.
 449 # KBUILD_DEFCONFIG may point out an alternative default configuration
 450 # used for 'make defconfig'
 451
 452 %_config::
 453         @$(MKCONFIG) -A $(@:_config=)
 454
 455 else
 456 # ===========================================================================
 457 # Build targets only - this includes vmlinux, arch specific targets, clean
 458 # targets and others. In general all targets except *config targets.
 459
 460 # load ARCH, BOARD, and CPU configuration
 461 -include include/config.mk
 462
 463 ifeq ($(dot-config),1)
 464 # Read in config
 465 -include include/autoconf.mk
 466 -include include/autoconf.mk.dep
 467
 468 # load other configuration
 469 include $(srctree)/config.mk
 470
 471 ifeq ($(wildcard include/config.mk),)
 472 $(error "System not configured - see README")
 473 endif
 474
 475 ifeq ($(__HAVE_ARCH_GENERIC_BOARD),)
 476 ifneq ($(CONFIG_SYS_GENERIC_BOARD),)
 477 $(error Your architecture does not support generic board. \
 478 Please undefined CONFIG_SYS_GENERIC_BOARD in your board config file)
 479 endif
 480 endif
 481
 482 # If board code explicitly specified LDSCRIPT or CONFIG_SYS_LDSCRIPT, use
 483 # that (or fail if absent).  Otherwise, search for a linker script in a
 484 # standard location.
 485
 486 LDSCRIPT_MAKEFILE_DIR = $(dir $(LDSCRIPT))
 487
 488 ifndef LDSCRIPT
 489         #LDSCRIPT := $(TOPDIR)/board/$(BOARDDIR)/u-boot.lds.debug
 490         ifdef CONFIG_SYS_LDSCRIPT
 491                 # need to strip off double quotes
 492                 LDSCRIPT := $(CONFIG_SYS_LDSCRIPT:"%"=%)
 493         endif
 494 endif
 495
 496 # If there is no specified link script, we look in a number of places for it
 497 ifndef LDSCRIPT
 498         ifeq ($(CONFIG_NAND_U_BOOT),y)
 499                 LDSCRIPT := $(TOPDIR)/board/$(BOARDDIR)/u-boot-nand.lds
 500                 ifeq ($(wildcard $(LDSCRIPT)),)
 501                         LDSCRIPT := $(TOPDIR)/$(CPUDIR)/u-boot-nand.lds
 502                 endif
 503         endif
 504         ifeq ($(wildcard $(LDSCRIPT)),)
 505                 LDSCRIPT := $(TOPDIR)/board/$(BOARDDIR)/u-boot.lds
 506         endif
 507         ifeq ($(wildcard $(LDSCRIPT)),)
 508                 LDSCRIPT := $(TOPDIR)/$(CPUDIR)/u-boot.lds
 509         endif
 510         ifeq ($(wildcard $(LDSCRIPT)),)
 511                 LDSCRIPT := $(TOPDIR)/arch/$(ARCH)/cpu/u-boot.lds
 512                 # We don't expect a Makefile here
 513                 LDSCRIPT_MAKEFILE_DIR =
 514         endif
 515         ifeq ($(wildcard $(LDSCRIPT)),)
 516 $(error could not find linker script)
 517         endif
 518 endif
 519
 520 else
 521
 522
 523 endif # $(dot-config)
 524
 525 KBUILD_CFLAGS += -Os #-fomit-frame-pointer
 526
 527 ifdef BUILD_TAG
 528 KBUILD_CFLAGS += -DBUILD_TAG='"$(BUILD_TAG)"'
 529 endif
 530
 531 KBUILD_CFLAGS += $(call cc-option,-fno-stack-protector)
 532
 533 KBUILD_CFLAGS   += -g
 534 # $(KBUILD_AFLAGS) sets -g, which causes gcc to pass a suitable -g<format>
 535 # option to the assembler.
 536 KBUILD_AFLAGS   += -g
 537
 538 # Report stack usage if supported
 539 KBUILD_CFLAGS += $(call cc-option,-fstack-usage)
 540
 541 KBUILD_CFLAGS += $(call cc-option,-Wno-format-nonliteral)
 542
 543 # turn jbsr into jsr for m68k
 544 ifeq ($(ARCH),m68k)
 545 ifeq ($(findstring 3.4,$(shell $(CC) --version)),3.4)
 546 KBUILD_AFLAGS += -Wa,-gstabs,-S
 547 endif
 548 endif
 549
 550 ifneq ($(CONFIG_SYS_TEXT_BASE),)
 551 KBUILD_CPPFLAGS += -DCONFIG_SYS_TEXT_BASE=$(CONFIG_SYS_TEXT_BASE)
 552 endif
 553
 554 export CONFIG_SYS_TEXT_BASE
 555
 556 # Use UBOOTINCLUDE when you must reference the include/ directory.
 557 # Needed to be compatible with the O= option
 558 UBOOTINCLUDE    :=
 559 ifneq ($(OBJTREE),$(SRCTREE))
 560 UBOOTINCLUDE    += -I$(OBJTREE)/include
 561 endif
 562 UBOOTINCLUDE    += -I$(srctree)/include \
 563                 -I$(srctree)/arch/$(ARCH)/include
 564
 565 NOSTDINC_FLAGS += -nostdinc -isystem $(shell $(CC) -print-file-name=include)
 566 CHECKFLAGS     += $(NOSTDINC_FLAGS)
 567
 568 # FIX ME
 569 cpp_flags := $(KBUILD_CPPFLAGS) $(CPPFLAGS) $(UBOOTINCLUDE) $(NOSTDINC_FLAGS)
 570 c_flags := $(KBUILD_CFLAGS) $(cpp_flags)
 571
 572 .PHONY : $(VERSION_FILE) $(TIMESTAMP_FILE)
 573
 574 #########################################################################
 575 # U-Boot objects....order is important (i.e. start must be first)
 576
 577 head-y := $(CPUDIR)/start.o
 578 head-$(CONFIG_4xx) += arch/powerpc/cpu/ppc4xx/resetvec.o
 579 head-$(CONFIG_MPC85xx) += arch/powerpc/cpu/mpc85xx/resetvec.o
 580
 581 HAVE_VENDOR_COMMON_LIB = $(if $(wildcard $(srctree)/board/$(VENDOR)/common/Makefile),y,n)
 582
 583 libs-y += lib/
 584 libs-$(HAVE_VENDOR_COMMON_LIB) += board/$(VENDOR)/common/
 585 libs-y += $(CPUDIR)/
 586 ifdef SOC
 587 libs-y += $(CPUDIR)/$(SOC)/
 588 endif
 589 libs-$(CONFIG_IXP4XX_NPE) += drivers/net/npe/
 590 libs-$(CONFIG_OF_EMBED) += dts/
 591 libs-y += arch/$(ARCH)/lib/
 592 libs-y += fs/
 593 libs-y += net/
 594 libs-y += disk/
 595 libs-y += drivers/
 596 libs-y += drivers/dma/
 597 libs-y += drivers/gpio/
 598 libs-y += drivers/i2c/
 599 libs-y += drivers/input/
 600 libs-y += drivers/mmc/
 601 libs-y += drivers/mtd/
 602 libs-$(CONFIG_CMD_NAND) += drivers/mtd/nand/
 603 libs-y += drivers/mtd/onenand/
 604 libs-$(CONFIG_CMD_UBI) += drivers/mtd/ubi/
 605 libs-y += drivers/mtd/spi/
 606 libs-y += drivers/net/
 607 libs-y += drivers/net/phy/
 608 libs-y += drivers/pci/
 609 libs-y += drivers/power/ \
 610         drivers/power/fuel_gauge/ \
 611         drivers/power/mfd/ \
 612         drivers/power/pmic/ \
 613         drivers/power/battery/
 614 libs-y += drivers/spi/
 615 libs-$(CONFIG_FMAN_ENET) += drivers/net/fm/
 616 libs-$(CONFIG_SYS_FSL_DDR) += drivers/ddr/fsl/
 617 libs-y += drivers/serial/
 618 libs-y += drivers/usb/eth/
 619 libs-y += drivers/usb/gadget/
 620 libs-y += drivers/usb/host/
 621 libs-y += drivers/usb/musb/
 622 libs-y += drivers/usb/musb-new/
 623 libs-y += drivers/usb/phy/
 624 libs-y += drivers/usb/ulpi/
 625 libs-y += common/
 626 libs-y += lib/libfdt/
 627 libs-$(CONFIG_API) += api/
 628 libs-$(CONFIG_HAS_POST) += post/
 629 libs-y += test/
 630
 631 ifneq (,$(filter $(SOC), mx25 mx27 mx5 mx6 mx31 mx35 mxs vf610))
 632 libs-y += arch/$(ARCH)/imx-common/
 633 endif
 634
 635 libs-$(CONFIG_ARM) += arch/arm/cpu/
 636 libs-$(CONFIG_PPC) += arch/powerpc/cpu/
 637
 638 libs-y += board/$(BOARDDIR)/
 639
 640 libs-y := $(sort $(libs-y))
 641
 642 u-boot-dirs     := $(patsubst %/,%,$(filter %/, $(libs-y))) tools examples
 643
 644 u-boot-alldirs  := $(sort $(u-boot-dirs) $(patsubst %/,%,$(filter %/, $(libs-))))
 645
 646 libs-y          := $(patsubst %/, %/built-in.o, $(libs-y))
 647
 648 u-boot-init := $(head-y)
 649 u-boot-main := $(libs-y)
 650
 651
 652 # Add GCC lib
 653 ifdef USE_PRIVATE_LIBGCC
 654 ifeq ("$(USE_PRIVATE_LIBGCC)", "yes")
 655 PLATFORM_LIBGCC = $(OBJTREE)/arch/$(ARCH)/lib/lib.a
 656 else
 657 PLATFORM_LIBGCC = -L $(USE_PRIVATE_LIBGCC) -lgcc
 658 endif
 659 else
 660 PLATFORM_LIBGCC := -L $(shell dirname `$(CC) $(c_flags) -print-libgcc-file-name`) -lgcc
 661 endif
 662 PLATFORM_LIBS += $(PLATFORM_LIBGCC)
 663 export PLATFORM_LIBS
 664
 665 # Special flags for CPP when processing the linker script.
 666 # Pass the version down so we can handle backwards compatibility
 667 # on the fly.
 668 LDPPFLAGS += \
 669         -include $(TOPDIR)/include/u-boot/u-boot.lds.h \
 670         -DCPUDIR=$(CPUDIR) \
 671         $(shell $(LD) --version | \
 672           sed -ne 's/GNU ld version \([0-9][0-9]*\)\.\([0-9][0-9]*\).*/-DLD_MAJOR=\1 -DLD_MINOR=\2/p')
 673
 674 #########################################################################
 675 #########################################################################
 676
 677 ifneq ($(CONFIG_BOARD_SIZE_LIMIT),)
 678 BOARD_SIZE_CHECK = \
 679         @actual=`wc -c $@ | awk '{print $$1}'`; \
 680         limit=`printf "%d" $(CONFIG_BOARD_SIZE_LIMIT)`; \
 681         if test $$actual -gt $$limit; then \
 682                 echo "$@ exceeds file size limit:" >&2 ; \
 683                 echo "  limit:  $$limit bytes" >&2 ; \
 684                 echo "  actual: $$actual bytes" >&2 ; \
 685                 echo "  excess: $$((actual - limit)) bytes" >&2; \
 686                 exit 1; \
 687         fi
 688 else
 689 BOARD_SIZE_CHECK =
 690 endif
 691
 692 # Statically apply RELA-style relocations (currently arm64 only)
 693 ifneq ($(CONFIG_STATIC_RELA),)
 694 # $(1) is u-boot ELF, $(2) is u-boot bin, $(3) is text base
 695 DO_STATIC_RELA = \
 696         start=$$($(NM) $(1) | grep __rel_dyn_start | cut -f 1 -d ' '); \
 697         end=$$($(NM) $(1) | grep __rel_dyn_end | cut -f 1 -d ' '); \
 698         tools/relocate-rela $(2) $(3) $$start $$end
 699 else
 700 DO_STATIC_RELA =
 701 endif
 702
 703 # Always append ALL so that arch config.mk's can add custom ones
 704 ALL-y += u-boot.srec u-boot.bin System.map
 705
 706 ALL-$(CONFIG_NAND_U_BOOT) += u-boot-nand.bin
 707 ALL-$(CONFIG_ONENAND_U_BOOT) += u-boot-onenand.bin
 708 ALL-$(CONFIG_RAMBOOT_PBL) += u-boot.pbl
 709 ALL-$(CONFIG_SPL) += spl/u-boot-spl.bin
 710 ALL-$(CONFIG_SPL_FRAMEWORK) += u-boot.img
 711 ALL-$(CONFIG_TPL) += tpl/u-boot-tpl.bin
 712 ALL-$(CONFIG_OF_SEPARATE) += u-boot.dtb u-boot-dtb.bin
 713 ifneq ($(CONFIG_SPL_TARGET),)
 714 ALL-$(CONFIG_SPL) += $(CONFIG_SPL_TARGET:"%"=%)
 715 endif
 716 ALL-$(CONFIG_REMAKE_ELF) += u-boot.elf
 717
 718 # enable combined SPL/u-boot/dtb rules for tegra
 719 ifneq ($(CONFIG_TEGRA),)
 720 ifeq ($(CONFIG_SPL),y)
 721 ifeq ($(CONFIG_OF_SEPARATE),y)
 722 ALL-y += u-boot-dtb-tegra.bin
 723 else
 724 ALL-y += u-boot-nodtb-tegra.bin
 725 endif
 726 endif
 727 endif
 728
 729 LDFLAGS_u-boot += -T u-boot.lds $(LDFLAGS_FINAL)
 730 ifneq ($(CONFIG_SYS_TEXT_BASE),)
 731 LDFLAGS_u-boot += -Ttext $(CONFIG_SYS_TEXT_BASE)
 732 endif
 733
 734 all:            $(ALL-y)
 735
 736 u-boot.dtb:     checkdtc u-boot
 737                 $(MAKE) $(build)=dts binary
 738                 mv dts/dt.dtb $@
 739
 740 u-boot-dtb.bin: u-boot.bin u-boot.dtb
 741                 cat $^ >$@
 742
 743 u-boot.hex:     u-boot
 744                 $(OBJCOPY) ${OBJCFLAGS} -O ihex $< $@
 745
 746 u-boot.srec:    u-boot
 747                 $(OBJCOPY) ${OBJCFLAGS} -O srec $< $@
 748
 749 u-boot.bin:     u-boot
 750                 $(OBJCOPY) ${OBJCFLAGS} -O binary $< $@
 751                 $(call DO_STATIC_RELA,$<,$@,$(CONFIG_SYS_TEXT_BASE))
 752                 $(BOARD_SIZE_CHECK)
 753
 754 u-boot.ldr:     u-boot
 755                 $(CREATE_LDR_ENV)
 756                 $(LDR) -T $(CONFIG_BFIN_CPU) -c $@ $< $(LDR_FLAGS)
 757                 $(BOARD_SIZE_CHECK)
 758
 759 u-boot.ldr.hex: u-boot.ldr
 760                 $(OBJCOPY) ${OBJCFLAGS} -O ihex $< $@ -I binary
 761
 762 u-boot.ldr.srec:        u-boot.ldr
 763                 $(OBJCOPY) ${OBJCFLAGS} -O srec $< $@ -I binary
 764
 765 #
 766 # U-Boot entry point, needed for booting of full-blown U-Boot
 767 # from the SPL U-Boot version.
 768 #
 769 ifndef CONFIG_SYS_UBOOT_START
 770 CONFIG_SYS_UBOOT_START := 0
 771 endif
 772
 773 u-boot.img:     u-boot.bin
 774                 tools/mkimage -A $(ARCH) -T firmware -C none \
 775                 -O u-boot -a $(CONFIG_SYS_TEXT_BASE) \
 776                 -e $(CONFIG_SYS_UBOOT_START) \
 777                 -n $(shell sed -n -e 's/.*U_BOOT_VERSION//p' $(VERSION_FILE) | \
 778                         sed -e 's/"[     ]*$$/ for $(BOARD) board"/') \
 779                 -d $< $@
 780
 781 u-boot.imx: u-boot.bin
 782                 $(MAKE) $(build)=arch/arm/imx-common $(objtree)/u-boot.imx
 783
 784 u-boot.kwb:       u-boot.bin
 785                 tools/mkimage -n $(CONFIG_SYS_KWD_CONFIG) -T kwbimage \
 786                 -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE) -d $< $@
 787
 788 u-boot.pbl:     u-boot.bin
 789                 tools/mkimage -n $(CONFIG_SYS_FSL_PBL_RCW) \
 790                 -R $(CONFIG_SYS_FSL_PBL_PBI) -T pblimage \
 791                 -d $< $@
 792
 793 u-boot.sha1:    u-boot.bin
 794                 tools/ubsha1 u-boot.bin
 795
 796 u-boot.dis:     u-boot
 797                 $(OBJDUMP) -d $< > $@
 798
 799 # $@ is output, $(1) and $(2) are inputs, $(3) is padded intermediate,
 800 # $(4) is pad-to
 801 SPL_PAD_APPEND = \
 802                 $(OBJCOPY) ${OBJCFLAGS} --pad-to=$(4) -I binary -O binary \
 803                 $(1) $(3); \
 804                 cat $(3) $(2) > $@; \
 805                 rm $(3)
 806
 807 ifdef CONFIG_TPL
 808 SPL_PAYLOAD := tpl/u-boot-with-tpl.bin
 809 else
 810 SPL_PAYLOAD := u-boot.bin
 811 endif
 812
 813 u-boot-with-spl.bin: spl/u-boot-spl.bin $(SPL_PAYLOAD)
 814                 $(call SPL_PAD_APPEND,$<,$(SPL_PAYLOAD),spl/u-boot-spl-pad.bin,$(CONFIG_SPL_PAD_TO))
 815
 816 tpl/u-boot-with-tpl.bin: tpl/u-boot-tpl.bin u-boot.bin
 817                 $(call SPL_PAD_APPEND,$<,u-boot.bin,tpl/u-boot-tpl-pad.bin,$(CONFIG_TPL_PAD_TO))
 818
 819 u-boot-with-spl.imx: spl/u-boot-spl.bin u-boot.bin
 820                 $(MAKE) $(build)=arch/arm/imx-common \
 821                         $(OBJTREE)/u-boot-with-spl.imx
 822
 823 u-boot-with-nand-spl.imx: spl/u-boot-spl.bin u-boot.bin
 824                 $(MAKE) $(build)=arch/arm/imx-common \
 825                         $(OBJTREE)/u-boot-with-nand-spl.imx
 826
 827 u-boot.ubl:       u-boot-with-spl.bin
 828                 tools/mkimage -n $(UBL_CONFIG) -T ublimage \
 829                 -e $(CONFIG_SYS_TEXT_BASE) -d $< u-boot.ubl
 830
 831 u-boot.ais:       spl/u-boot-spl.bin u-boot.img
 832                 tools/mkimage -s -n $(if $(CONFIG_AIS_CONFIG_FILE),$(srctree)/$(CONFIG_AIS_CONFIG_FILE:"%"=%),"/dev/null") \
 833                         -T aisimage \
 834                         -e $(CONFIG_SPL_TEXT_BASE) \
 835                         -d spl/u-boot-spl.bin \
 836                         spl/u-boot-spl.ais
 837                 $(OBJCOPY) ${OBJCFLAGS} -I binary \
 838                         --pad-to=$(CONFIG_SPL_MAX_SIZE) -O binary \
 839                         spl/u-boot-spl.ais spl/u-boot-spl-pad.ais
 840                 cat spl/u-boot-spl-pad.ais u-boot.img > u-boot.ais
 841
 842
 843 u-boot.sb:       u-boot.bin spl/u-boot-spl.bin
 844                 $(MAKE) $(build)=$(CPUDIR)/$(SOC)/ $(OBJTREE)/u-boot.sb
 845
 846 # On x600 (SPEAr600) U-Boot is appended to U-Boot SPL.
 847 # Both images are created using mkimage (crc etc), so that the ROM
 848 # bootloader can check its integrity. Padding needs to be done to the
 849 # SPL image (with mkimage header) and not the binary. Otherwise the resulting image
 850 # which is loaded/copied by the ROM bootloader to SRAM doesn't fit.
 851 # The resulting image containing both U-Boot images is called u-boot.spr
 852 u-boot.spr:     u-boot.img spl/u-boot-spl.bin
 853                 tools/mkimage -A $(ARCH) -T firmware -C none \
 854                 -a $(CONFIG_SPL_TEXT_BASE) -e $(CONFIG_SPL_TEXT_BASE) -n XLOADER \
 855                 -d spl/u-boot-spl.bin $@
 856                 $(OBJCOPY) -I binary -O binary \
 857                         --pad-to=$(CONFIG_SPL_PAD_TO) --gap-fill=0xff $@
 858                 cat u-boot.img >> $@
 859
 860 ifneq ($(CONFIG_TEGRA),)
 861 u-boot-nodtb-tegra.bin: spl/u-boot-spl.bin u-boot.bin
 862                 $(OBJCOPY) ${OBJCFLAGS} --pad-to=$(CONFIG_SYS_TEXT_BASE) -O binary spl/u-boot-spl spl/u-boot-spl-pad.bin
 863                 cat spl/u-boot-spl-pad.bin u-boot.bin > $@
 864                 rm spl/u-boot-spl-pad.bin
 865
 866 ifeq ($(CONFIG_OF_SEPARATE),y)
 867 u-boot-dtb-tegra.bin: u-boot-nodtb-tegra.bin u-boot.dtb
 868                 cat u-boot-nodtb-tegra.bin u-boot.dtb > $@
 869 endif
 870 endif
 871
 872 u-boot-img.bin: spl/u-boot-spl.bin u-boot.img
 873                 cat spl/u-boot-spl.bin u-boot.img > $@
 874
 875 # PPC4xx needs the SPL at the end of the image, since the reset vector
 876 # is located at 0xfffffffc. So we can't use the "u-boot-img.bin" target
 877 # and need to introduce a new build target with the full blown U-Boot
 878 # at the start padded up to the start of the SPL image. And then concat
 879 # the SPL image to the end.
 880 u-boot-img-spl-at-end.bin: spl/u-boot-spl.bin u-boot.img
 881                 $(OBJCOPY) -I binary -O binary --pad-to=$(CONFIG_UBOOT_PAD_TO) \
 882                          --gap-fill=0xff u-boot.img $@
 883                 cat spl/u-boot-spl.bin >> $@
 884
 885 # Create a new ELF from a raw binary file.  This is useful for arm64
 886 # where static relocation needs to be performed on the raw binary,
 887 # but certain simulators only accept an ELF file (but don't do the
 888 # relocation).
 889 # FIXME refactor dts/Makefile to share target/arch detection
 890 u-boot.elf: u-boot.bin
 891         @$(OBJCOPY)  -B aarch64 -I binary -O elf64-littleaarch64 \
 892                 $< u-boot-elf.o
 893         @$(LD) u-boot-elf.o -o $@ \
 894                 --defsym=_start=$(CONFIG_SYS_TEXT_BASE) \
 895                 -Ttext=$(CONFIG_SYS_TEXT_BASE)
 896
 897 ifeq ($(CONFIG_SANDBOX),y)
 898 GEN_UBOOT = \
 899                 $(CC) $(SYMS) -T u-boot.lds \
 900                         -Wl,--start-group $(u-boot-main) -Wl,--end-group \
 901                         $(PLATFORM_LIBS) -Wl,-Map -Wl,u-boot.map -o u-boot
 902 else
 903 GEN_UBOOT = \
 904                 $(LD) $(LDFLAGS) $(LDFLAGS_$(@F)) \
 905                         $(u-boot-init) \
 906                         --start-group $(u-boot-main) --end-group $(PLATFORM_LIBS) \
 907                         -Map u-boot.map -o u-boot
 908 endif
 909
 910 u-boot: $(u-boot-init) $(u-boot-main) u-boot.lds
 911                 $(GEN_UBOOT)
 912 ifeq ($(CONFIG_KALLSYMS),y)
 913                 smap=`$(call SYSTEM_MAP,u-boot) | \
 914                         awk '$$2 ~ /[tTwW]/ {printf $$1 $$3 "\\\\000"}'` ; \
 915                 $(CC) $(c_flags) -DSYSTEM_MAP="\"$${smap}\"" \
 916                         -c $(srctree)/common/system_map.c -o common/system_map.o
 917                 $(GEN_UBOOT) common/system_map.o
 918 endif
 919
 920 # The actual objects are generated when descending,
 921 # make sure no implicit rule kicks in
 922 $(sort $(u-boot-init) $(u-boot-main)): $(u-boot-dirs) ;
 923
 924 # Handle descending into subdirectories listed in $(vmlinux-dirs)
 925 # Preset locale variables to speed up the build process. Limit locale
 926 # tweaks to this spot to avoid wrong language settings when running
 927 # make menuconfig etc.
 928 # Error messages still appears in the original language
 929
 930 PHONY += $(u-boot-dirs)
 931 $(u-boot-dirs): depend scripts_basic
 932         $(Q)$(MAKE) $(build)=$@
 933
 934 tools: $(TIMESTAMP_FILE) $(VERSION_FILE)
 935 # The "tools" are needed early
 936 $(filter-out tools, $(u-boot-dirs)): tools
 937 # The "examples" conditionally depend on U-Boot (say, when USE_PRIVATE_LIBGCC
 938 # is "yes"), so compile examples after U-Boot is compiled.
 939 examples: $(filter-out examples, $(u-boot-dirs))
 940
 941
 942 #
 943 # Auto-generate the autoconf.mk file (which is included by all makefiles)
 944 #
 945 # This target actually generates 2 files; autoconf.mk and autoconf.mk.dep.
 946 # the dep file is only include in this top level makefile to determine when
 947 # to regenerate the autoconf.mk file.
 948
 949 quiet_cmd_autoconf_dep = GEN     $@
 950       cmd_autoconf_dep = $(CC) -x c -DDO_DEPS_ONLY -M $(c_flags) \
 951         -MQ include/autoconf.mk $(srctree)/include/common.h > $@ || rm $@
 952
 953 include/autoconf.mk.dep: include/config.h include/common.h
 954         $(call cmd,autoconf_dep)
 955
 956 quiet_cmd_autoconf = GEN     $@
 957       cmd_autoconf = \
 958         $(CPP) $(c_flags) -DDO_DEPS_ONLY -dM $(srctree)/include/common.h > $@.tmp && \
 959         sed -n -f $(srctree)/tools/scripts/define2mk.sed $@.tmp > $@; \
 960         rm $@.tmp
 961
 962 include/autoconf.mk: include/config.h
 963         $(call cmd,autoconf)
 964
 965 u-boot.lds: $(LDSCRIPT) depend
 966                 $(CPP) $(cpp_flags) $(LDPPFLAGS) -ansi -D__ASSEMBLY__ -P - <$< >$@
 967
 968 nand_spl:       $(TIMESTAMP_FILE) $(VERSION_FILE) depend scripts_basic
 969                 $(MAKE) $(build)=nand_spl/board/$(BOARDDIR) all
 970
 971 u-boot-nand.bin:        nand_spl u-boot.bin
 972                 cat nand_spl/u-boot-spl-16k.bin u-boot.bin > u-boot-nand.bin
 973
 974 spl/u-boot-spl.bin: tools depend scripts_basic
 975                 $(MAKE) obj=spl -f $(srctree)/spl/Makefile all
 976
 977 tpl/u-boot-tpl.bin: tools depend scripts_basic
 978                 $(MAKE) obj=tpl -f $(srctree)/spl/Makefile all CONFIG_TPL_BUILD=y
 979
 980 # Explicitly make _depend in subdirs containing multiple targets to prevent
 981 # parallel sub-makes creating .depend files simultaneously.
 982 depend dep:     $(TIMESTAMP_FILE) $(VERSION_FILE) \
 983                 include/generated/generic-asm-offsets.h \
 984                 include/generated/asm-offsets.h
 985
 986 TAG_SUBDIRS := $(u-boot-dirs) include
 987
 988 FIND := find
 989 FINDFLAGS := -L
 990
 991 PHONY += checkstack
 992
 993 checkstack:
 994         $(OBJDUMP) -d u-boot $$(find . -name u-boot-spl) | \
 995         $(PERL) $(src)/scripts/checkstack.pl $(ARCH)
 996
 997 tags ctags:
 998                 ctags -w -o ctags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \
 999                                                 -name '*.[chS]' -print`
1000
1001 etags:
1002                 etags -a -o $(obj)etags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \
1003                                                 -name '*.[chS]' -print`
1004 cscope:
1005                 $(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) -name '*.[chS]' -print > \
1006                                                 cscope.files
1007                 cscope -b -q -k
1008
1009 SYSTEM_MAP = \
1010                 $(NM) $1 | \
1011                 grep -v '\(compiled\)\|\(\.o$$\)\|\( [aUw] \)\|\(\.\.ng$$\)\|\(LASH[RL]DI\)' | \
1012                 LC_ALL=C sort
1013 System.map:     u-boot
1014                 @$(call SYSTEM_MAP,$<) > $@
1015
1016 checkthumb:
1017         @if test $(call cc-version) -lt 0404; then \
1018                 echo -n '*** Your GCC does not produce working '; \
1019                 echo 'binaries in THUMB mode.'; \
1020                 echo '*** Your board is configured for THUMB mode.'; \
1021                 false; \
1022         fi
1023
1024 # GCC 3.x is reported to have problems generating the type of relocation
1025 # that U-Boot wants.
1026 # See http://lists.denx.de/pipermail/u-boot/2012-September/135156.html
1027 checkgcc4:
1028         @if test $(call cc-version) -lt 0400; then \
1029                 echo -n '*** Your GCC is too old, please upgrade to GCC 4.x or newer'; \
1030                 false; \
1031         fi
1032
1033 checkdtc:
1034         @if test $(call dtc-version) -lt 0104; then \
1035                 echo '*** Your dtc is too old, please upgrade to dtc 1.4 or newer'; \
1036                 false; \
1037         fi
1038
1039 quiet_cmd_offsets = GEN     $@
1040       cmd_offsets = $(srctree)/tools/scripts/make-asm-offsets $< $@
1041
1042 include/generated/generic-asm-offsets.h: lib/asm-offsets.s
1043         $(call cmd,offsets)
1044
1045 quiet_cmd_asm-offsets.s = CC      $@
1046       cmd_asm-offsets.s = mkdir -p lib; \
1047                 $(CC) -DDO_DEPS_ONLY \
1048                 $(c_flags) $(CFLAGS_$(BCURDIR)/$(@F)) $(CFLAGS_$(BCURDIR)) \
1049                 -o $@ $< -c -S
1050
1051 lib/asm-offsets.s: $(srctree)/lib/asm-offsets.c include/config.h
1052         $(call cmd,asm-offsets.s)
1053
1054 include/generated/asm-offsets.h: $(CPUDIR)/$(SOC)/asm-offsets.s
1055         $(call cmd,offsets)
1056
1057 quiet_cmd_soc_asm-offsets.s = CC      $@
1058       cmd_soc_asm-offsets.s = mkdir -p $(CPUDIR)/$(SOC); \
1059         if [ -f $(srctree)/$(CPUDIR)/$(SOC)/asm-offsets.c ];then \
1060                 $(CC) -DDO_DEPS_ONLY \
1061                 $(c_flags) $(CFLAGS_$(BCURDIR)/$(@F)) $(CFLAGS_$(BCURDIR)) \
1062                         -o $@ $(srctree)/$(CPUDIR)/$(SOC)/asm-offsets.c -c -S; \
1063         else \
1064                 touch $@; \
1065         fi
1066
1067 $(CPUDIR)/$(SOC)/asm-offsets.s: include/config.h
1068         $(call cmd,soc_asm-offsets.s)
1069
1070 #########################################################################
1071
1072 # ARM relocations should all be R_ARM_RELATIVE (32-bit) or
1073 # R_AARCH64_RELATIVE (64-bit).
1074 checkarmreloc: u-boot
1075         @RELOC="`$(CROSS_COMPILE)readelf -r -W $< | cut -d ' ' -f 4 | \
1076                 grep R_A | sort -u`"; \
1077         if test "$$RELOC" != "R_ARM_RELATIVE" -a \
1078                  "$$RELOC" != "R_AARCH64_RELATIVE"; then \
1079                 echo "$< contains unexpected relocations: $$RELOC"; \
1080                 false; \
1081         fi
1082
1083 $(VERSION_FILE):
1084                 @mkdir -p $(dir $(VERSION_FILE))
1085                 @( localvers='$(shell $(TOPDIR)/scripts/setlocalversion $(TOPDIR))' ; \
1086                    printf '#define PLAIN_VERSION "%s%s"\n' \
1087                         "$(U_BOOT_VERSION)" "$${localvers}" ; \
1088                    printf '#define U_BOOT_VERSION "U-Boot %s%s"\n' \
1089                         "$(U_BOOT_VERSION)" "$${localvers}" ; \
1090                 ) > $@.tmp
1091                 @( printf '#define CC_VERSION_STRING "%s"\n' \
1092                  '$(shell $(CC) --version | head -n 1)' )>>  $@.tmp
1093                 @( printf '#define LD_VERSION_STRING "%s"\n' \
1094                  '$(shell $(LD) -v | head -n 1)' )>>  $@.tmp
1095                 @cmp -s $@ $@.tmp && rm -f $@.tmp || mv -f $@.tmp $@
1096
1097 $(TIMESTAMP_FILE):
1098                 @mkdir -p $(dir $(TIMESTAMP_FILE))
1099                 @LC_ALL=C date +'#define U_BOOT_DATE "%b %d %C%y"' > $@.tmp
1100                 @LC_ALL=C date +'#define U_BOOT_TIME "%T"' >> $@.tmp
1101                 @cmp -s $@ $@.tmp && rm -f $@.tmp || mv -f $@.tmp $@
1102
1103 env: depend scripts_basic
1104         $(Q)$(MAKE) $(build)=tools/$@
1105
1106 xmldocs pdfdocs psdocs htmldocs mandocs: tools/kernel-doc/docproc
1107         $(Q)$(MAKE) U_BOOT_VERSION=$(U_BOOT_VERSION) $(build)=doc/DocBook $@
1108
1109 tools-all: HOST_TOOLS_ALL=y
1110 tools-all: env tools ;
1111
1112 .PHONY : CHANGELOG
1113 CHANGELOG:
1114         git log --no-merges U-Boot-1_1_5.. | \
1115         unexpand -a | sed -e 's/\s\s*$$//' > $@
1116
1117 include/license.h: tools/bin2header COPYING
1118         cat COPYING | gzip -9 -c | ./tools/bin2header license_gzip > include/license.h
1119 #########################################################################
1120
1121 ###
1122 # Cleaning is done on three levels.
1123 # make clean     Delete most generated files
1124 #                Leave enough to build external modules
1125 # make mrproper  Delete the current configuration, and all generated files
1126 # make distclean Remove editor backup files, patch leftover files and the like
1127
1128 # Directories & files removed with 'make clean'
1129 CLEAN_DIRS  += $(MODVERDIR)
1130 CLEAN_FILES += u-boot.lds include/bmp_logo.h include/bmp_logo_data.h \
1131                board/*/config.tmp board/*/*/config.tmp dts/*.tmp \
1132                include/autoconf.mk* include/spl-autoconf.mk \
1133                include/tpl-autoconf.mk
1134
1135 # Directories & files removed with 'make clobber'
1136 CLOBBER_DIRS  += $(patsubst %,spl/%, $(filter-out Makefile, \
1137                  $(shell ls -1 spl 2>/dev/null))) \
1138                  tpl
1139 CLOBBER_FILES += u-boot* MLO MLO* SPL System.map nand_spl/u-boot*
1140
1141 # Directories & files removed with 'make mrproper'
1142 MRPROPER_DIRS  += include/config include/generated
1143 MRPROPER_FILES += .config .config.old \
1144                   tags TAGS cscope* GPATH GTAGS GRTAGS GSYMS \
1145                   include/config.h include/config.mk
1146
1147 # clean - Delete most, but leave enough to build external modules
1148 #
1149 clean: rm-dirs  := $(CLEAN_DIRS)
1150 clean: rm-files := $(CLEAN_FILES)
1151
1152 clean-dirs      := $(foreach f,$(u-boot-alldirs),$(if $(wildcard $f/Makefile),$f))
1153
1154 clean-dirs      := $(addprefix _clean_, $(clean-dirs) doc/DocBook)
1155
1156 PHONY += $(clean-dirs) clean archclean
1157 $(clean-dirs):
1158         $(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$@)
1159
1160 # TODO: Do not use *.cfgtmp
1161 clean: $(clean-dirs)
1162         $(call cmd,rmdirs)
1163         $(call cmd,rmfiles)
1164         @find $(if $(KBUILD_EXTMOD), $(KBUILD_EXTMOD), .) $(RCS_FIND_IGNORE) \
1165                 \( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \
1166                 -o -name '*.ko.*' -o -name '*.su' -o -name '*.cfgtmp' \
1167                 -o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \
1168                 -o -name '*.symtypes' -o -name 'modules.order' \
1169                 -o -name modules.builtin -o -name '.tmp_*.o.*' \
1170                 -o -name '*.gcno' \) -type f -print | xargs rm -f
1171         @find $(if $(KBUILD_EXTMOD), $(KBUILD_EXTMOD), .) $(RCS_FIND_IGNORE) \
1172                 -path './nand_spl/*' -type l -print | xargs rm -f
1173
1174 # clobber
1175 #
1176 clobber: rm-dirs  := $(CLOBBER_DIRS)
1177 clobber: rm-files := $(CLOBBER_FILES)
1178
1179 PHONY += clobber
1180
1181 clobber: clean
1182         $(call cmd,rmdirs)
1183         $(call cmd,rmfiles)
1184
1185 # mrproper - Delete all generated files, including .config
1186 #
1187 mrproper: rm-dirs  := $(wildcard $(MRPROPER_DIRS))
1188 mrproper: rm-files := $(wildcard $(MRPROPER_FILES))
1189 mrproper-dirs      := $(addprefix _mrproper_,scripts)
1190
1191 PHONY += $(mrproper-dirs) mrproper archmrproper
1192 $(mrproper-dirs):
1193         $(Q)$(MAKE) $(clean)=$(patsubst _mrproper_%,%,$@)
1194
1195 mrproper: clobber $(mrproper-dirs)
1196         $(call cmd,rmdirs)
1197         $(call cmd,rmfiles)
1198         @rm -f arch/*/include/asm/arch arch/*/include/asm/proc
1199
1200 # distclean
1201 #
1202 PHONY += distclean
1203
1204 distclean: mrproper
1205         @find $(srctree) $(RCS_FIND_IGNORE) \
1206                 \( -name '*.orig' -o -name '*.rej' -o -name '*~' \
1207                 -o -name '*.bak' -o -name '#*#' -o -name '.*.orig' \
1208                 -o -name '.*.rej' \
1209                 -o -name '*%' -o -name '.*.cmd' -o -name 'core' \) \
1210                 -type f -print | xargs rm -f
1211
1212 backup:
1213         F=`basename $(TOPDIR)` ; cd .. ; \
1214         gtar --force-local -zcvf `LC_ALL=C date "+$$F-%Y-%m-%d-%T.tar.gz"` $$F
1215
1216 #########################################################################
1217
1218 endif #ifeq ($(config-targets),1)
1219 endif #ifeq ($(mixed-targets),1)
1220
1221 quiet_cmd_rmdirs = $(if $(wildcard $(rm-dirs)),CLEAN   $(wildcard $(rm-dirs)))
1222       cmd_rmdirs = rm -rf $(rm-dirs)
1223
1224 quiet_cmd_rmfiles = $(if $(wildcard $(rm-files)),CLEAN   $(wildcard $(rm-files)))
1225       cmd_rmfiles = rm -f $(rm-files)
1226
1227 # Shorthand for $(Q)$(MAKE) -f scripts/Makefile.clean obj=dir
1228 # Usage:
1229 # $(Q)$(MAKE) $(clean)=dir
1230 clean := -f $(if $(KBUILD_SRC),$(srctree)/)scripts/Makefile.clean obj
1231
1232 endif   # skip-makefile
1233
1234 PHONY += FORCE
1235 FORCE:
1236
1237 # Declare the contents of the .PHONY variable as phony.  We keep that
1238 # information in a variable so we can use it in if_changed and friends.
1239 .PHONY: $(PHONY)