Makefile

   1 # SPDX-License-Identifier: GPL-2.0+
   2
   3 VERSION = 2019
   4 PATCHLEVEL = 07
   5 SUBLEVEL =
   6 EXTRAVERSION = -rc4
   7 NAME =
   8
   9 # *DOCUMENTATION*
  10 # To see a list of typical targets execute "make help"
  11 # More info can be located in ./README
  12 # Comments in this file are targeted only to the developer, do not
  13 # expect to learn how to build the kernel reading this file.
  14
  15 # o Do not use make's built-in rules and variables
  16 #   (this increases performance and avoids hard-to-debug behaviour);
  17 # o Look for make include files relative to root of kernel src
  18 MAKEFLAGS += -rR --include-dir=$(CURDIR)
  19
  20 # Avoid funny character set dependencies
  21 unexport LC_ALL
  22 LC_COLLATE=C
  23 LC_NUMERIC=C
  24 export LC_COLLATE LC_NUMERIC
  25
  26 # Avoid interference with shell env settings
  27 unexport GREP_OPTIONS
  28
  29 # We are using a recursive build, so we need to do a little thinking
  30 # to get the ordering right.
  31 #
  32 # Most importantly: sub-Makefiles should only ever modify files in
  33 # their own directory. If in some directory we have a dependency on
  34 # a file in another dir (which doesn't happen often, but it's often
  35 # unavoidable when linking the built-in.o targets which finally
  36 # turn into vmlinux), we will call a sub make in that other dir, and
  37 # after that we are sure that everything which is in that other dir
  38 # is now up to date.
  39 #
  40 # The only cases where we need to modify files which have global
  41 # effects are thus separated out and done before the recursive
  42 # descending is started. They are now explicitly listed as the
  43 # prepare rule.
  44
  45 # Beautify output
  46 # ---------------------------------------------------------------------------
  47 #
  48 # Normally, we echo the whole command before executing it. By making
  49 # that echo $($(quiet)$(cmd)), we now have the possibility to set
  50 # $(quiet) to choose other forms of output instead, e.g.
  51 #
  52 #         quiet_cmd_cc_o_c = Compiling $(RELDIR)/$@
  53 #         cmd_cc_o_c       = $(CC) $(c_flags) -c -o $@ $<
  54 #
  55 # If $(quiet) is empty, the whole command will be printed.
  56 # If it is set to "quiet_", only the short version will be printed.
  57 # If it is set to "silent_", nothing will be printed at all, since
  58 # the variable $(silent_cmd_cc_o_c) doesn't exist.
  59 #
  60 # A simple variant is to prefix commands with $(Q) - that's useful
  61 # for commands that shall be hidden in non-verbose mode.
  62 #
  63 #       $(Q)ln $@ :<
  64 #
  65 # If KBUILD_VERBOSE equals 0 then the above command will be hidden.
  66 # If KBUILD_VERBOSE equals 1 then the above command is displayed.
  67 #
  68 # To put more focus on warnings, be less verbose as default
  69 # Use 'make V=1' to see the full commands
  70
  71 ifeq ("$(origin V)", "command line")
  72   KBUILD_VERBOSE = $(V)
  73 endif
  74 ifndef KBUILD_VERBOSE
  75   KBUILD_VERBOSE = 0
  76 endif
  77
  78 ifeq ($(KBUILD_VERBOSE),1)
  79   quiet =
  80   Q =
  81 else
  82   quiet=quiet_
  83   Q = @
  84 endif
  85
  86 # If the user is running make -s (silent mode), suppress echoing of
  87 # commands
  88
  89 ifneq ($(filter 4.%,$(MAKE_VERSION)),)  # make-4
  90 ifneq ($(filter %s ,$(firstword x$(MAKEFLAGS))),)
  91   quiet=silent_
  92 endif
  93 else                                    # make-3.8x
  94 ifneq ($(filter s% -s%,$(MAKEFLAGS)),)
  95   quiet=silent_
  96 endif
  97 endif
  98
  99 export quiet Q KBUILD_VERBOSE
 100
 101 # kbuild supports saving output files in a separate directory.
 102 # To locate output files in a separate directory two syntaxes are supported.
 103 # In both cases the working directory must be the root of the kernel src.
 104 # 1) O=
 105 # Use "make O=dir/to/store/output/files/"
 106 #
 107 # 2) Set KBUILD_OUTPUT
 108 # Set the environment variable KBUILD_OUTPUT to point to the directory
 109 # where the output files shall be placed.
 110 # export KBUILD_OUTPUT=dir/to/store/output/files/
 111 # make
 112 #
 113 # The O= assignment takes precedence over the KBUILD_OUTPUT environment
 114 # variable.
 115
 116 # KBUILD_SRC is set on invocation of make in OBJ directory
 117 # KBUILD_SRC is not intended to be used by the regular user (for now)
 118 ifeq ($(KBUILD_SRC),)
 119
 120 # OK, Make called in directory where kernel src resides
 121 # Do we want to locate output files in a separate directory?
 122 ifeq ("$(origin O)", "command line")
 123   KBUILD_OUTPUT := $(O)
 124 endif
 125
 126 # That's our default target when none is given on the command line
 127 PHONY := _all
 128 _all:
 129
 130 # Cancel implicit rules on top Makefile
 131 $(CURDIR)/Makefile Makefile: ;
 132
 133 ifneq ($(KBUILD_OUTPUT),)
 134 # Invoke a second make in the output directory, passing relevant variables
 135 # check that the output directory actually exists
 136 saved-output := $(KBUILD_OUTPUT)
 137 KBUILD_OUTPUT := $(shell mkdir -p $(KBUILD_OUTPUT) && cd $(KBUILD_OUTPUT) \
 138                                                                 && /bin/pwd)
 139 $(if $(KBUILD_OUTPUT),, \
 140      $(error failed to create output directory "$(saved-output)"))
 141
 142 PHONY += $(MAKECMDGOALS) sub-make
 143
 144 $(filter-out _all sub-make $(CURDIR)/Makefile, $(MAKECMDGOALS)) _all: sub-make
 145         @:
 146
 147 sub-make: FORCE
 148         $(Q)$(MAKE) -C $(KBUILD_OUTPUT) KBUILD_SRC=$(CURDIR) \
 149         -f $(CURDIR)/Makefile $(filter-out _all sub-make,$(MAKECMDGOALS))
 150
 151 # Leave processing to above invocation of make
 152 skip-makefile := 1
 153 endif # ifneq ($(KBUILD_OUTPUT),)
 154 endif # ifeq ($(KBUILD_SRC),)
 155
 156 # We process the rest of the Makefile if this is the final invocation of make
 157 ifeq ($(skip-makefile),)
 158
 159 # Do not print "Entering directory ...",
 160 # but we want to display it when entering to the output directory
 161 # so that IDEs/editors are able to understand relative filenames.
 162 MAKEFLAGS += --no-print-directory
 163
 164 # Call a source code checker (by default, "sparse") as part of the
 165 # C compilation.
 166 #
 167 # Use 'make C=1' to enable checking of only re-compiled files.
 168 # Use 'make C=2' to enable checking of *all* source files, regardless
 169 # of whether they are re-compiled or not.
 170 #
 171 # See the file "Documentation/sparse.txt" for more details, including
 172 # where to get the "sparse" utility.
 173
 174 ifeq ("$(origin C)", "command line")
 175   KBUILD_CHECKSRC = $(C)
 176 endif
 177 ifndef KBUILD_CHECKSRC
 178   KBUILD_CHECKSRC = 0
 179 endif
 180
 181 # Use make M=dir to specify directory of external module to build
 182 # Old syntax make ... SUBDIRS=$PWD is still supported
 183 # Setting the environment variable KBUILD_EXTMOD take precedence
 184 ifdef SUBDIRS
 185   KBUILD_EXTMOD ?= $(SUBDIRS)
 186 endif
 187
 188 ifeq ("$(origin M)", "command line")
 189   KBUILD_EXTMOD := $(M)
 190 endif
 191
 192 # If building an external module we do not care about the all: rule
 193 # but instead _all depend on modules
 194 PHONY += all
 195 ifeq ($(KBUILD_EXTMOD),)
 196 _all: all
 197 else
 198 _all: modules
 199 endif
 200
 201 ifeq ($(KBUILD_SRC),)
 202         # building in the source tree
 203         srctree := .
 204 else
 205         ifeq ($(KBUILD_SRC)/,$(dir $(CURDIR)))
 206                 # building in a subdirectory of the source tree
 207                 srctree := ..
 208         else
 209                 srctree := $(KBUILD_SRC)
 210         endif
 211 endif
 212 objtree         := .
 213 src             := $(srctree)
 214 obj             := $(objtree)
 215
 216 VPATH           := $(srctree)$(if $(KBUILD_EXTMOD),:$(KBUILD_EXTMOD))
 217
 218 export srctree objtree VPATH
 219
 220 # Make sure CDPATH settings don't interfere
 221 unexport CDPATH
 222
 223 #########################################################################
 224
 225 HOSTARCH := $(shell uname -m | \
 226         sed -e s/i.86/x86/ \
 227             -e s/sun4u/sparc64/ \
 228             -e s/arm.*/arm/ \
 229             -e s/sa110/arm/ \
 230             -e s/ppc64/powerpc/ \
 231             -e s/ppc/powerpc/ \
 232             -e s/macppc/powerpc/\
 233             -e s/sh.*/sh/)
 234
 235 HOSTOS := $(shell uname -s | tr '[:upper:]' '[:lower:]' | \
 236             sed -e 's/\(cygwin\).*/cygwin/')
 237
 238 export  HOSTARCH HOSTOS
 239
 240 #########################################################################
 241
 242 # set default to nothing for native builds
 243 ifeq ($(HOSTARCH),$(ARCH))
 244 CROSS_COMPILE ?=
 245 endif
 246
 247 KCONFIG_CONFIG  ?= .config
 248 export KCONFIG_CONFIG
 249
 250 # SHELL used by kbuild
 251 CONFIG_SHELL := $(shell if [ -x "$$BASH" ]; then echo $$BASH; \
 252           else if [ -x /bin/bash ]; then echo /bin/bash; \
 253           else echo sh; fi ; fi)
 254
 255 HOSTCC       = cc
 256 HOSTCXX      = c++
 257 HOSTCFLAGS   = -Wall -Wstrict-prototypes -O2 -fomit-frame-pointer \
 258                 $(if $(CONFIG_TOOLS_DEBUG),-g)
 259 HOSTCXXFLAGS = -O2
 260
 261 # With the move to GCC 6, we have implicitly upgraded our language
 262 # standard to GNU11 (see https://gcc.gnu.org/gcc-5/porting_to.html).
 263 # Some Linux distributions (including RHEL7, SLES13, Debian 8) still
 264 # have older compilers as their default, so we make it explicit for
 265 # these that our host tools are GNU11 (i.e. C11 w/ GNU extensions).
 266 CSTD_FLAG := -std=gnu11
 267 ifeq ($(HOSTOS),linux)
 268 HOSTCFLAGS += $(CSTD_FLAG)
 269 endif
 270
 271 ifeq ($(HOSTOS),cygwin)
 272 HOSTCFLAGS      += -ansi
 273 endif
 274
 275 # Mac OS X / Darwin's C preprocessor is Apple specific.  It
 276 # generates numerous errors and warnings.  We want to bypass it
 277 # and use GNU C's cpp.  To do this we pass the -traditional-cpp
 278 # option to the compiler.  Note that the -traditional-cpp flag
 279 # DOES NOT have the same semantics as GNU C's flag, all it does
 280 # is invoke the GNU preprocessor in stock ANSI/ISO C fashion.
 281 #
 282 # Apple's linker is similar, thanks to the new 2 stage linking
 283 # multiple symbol definitions are treated as errors, hence the
 284 # -multiply_defined suppress option to turn off this error.
 285 #
 286 ifeq ($(HOSTOS),darwin)
 287 # get major and minor product version (e.g. '10' and '6' for Snow Leopard)
 288 DARWIN_MAJOR_VERSION    = $(shell sw_vers -productVersion | cut -f 1 -d '.')
 289 DARWIN_MINOR_VERSION    = $(shell sw_vers -productVersion | cut -f 2 -d '.')
 290
 291 os_x_before     = $(shell if [ $(DARWIN_MAJOR_VERSION) -le $(1) -a \
 292         $(DARWIN_MINOR_VERSION) -le $(2) ] ; then echo "$(3)"; else echo "$(4)"; fi ;)
 293
 294 os_x_after = $(shell if [ $(DARWIN_MAJOR_VERSION) -ge $(1) -a \
 295         $(DARWIN_MINOR_VERSION) -ge $(2) ] ; then echo "$(3)"; else echo "$(4)"; fi ;)
 296
 297 # Snow Leopards build environment has no longer restrictions as described above
 298 HOSTCC       = $(call os_x_before, 10, 5, "cc", "gcc")
 299 HOSTCFLAGS  += $(call os_x_before, 10, 4, "-traditional-cpp")
 300 HOSTLDFLAGS += $(call os_x_before, 10, 5, "-multiply_defined suppress")
 301
 302 # since Lion (10.7) ASLR is on by default, but we use linker generated lists
 303 # in some host tools which is a problem then ... so disable ASLR for these
 304 # tools
 305 HOSTLDFLAGS += $(call os_x_before, 10, 7, "", "-Xlinker -no_pie")
 306
 307 # macOS Mojave (10.14.X)
 308 # Undefined symbols for architecture x86_64: "_PyArg_ParseTuple"
 309 HOSTLDFLAGS += $(call os_x_after, 10, 14, "-lpython -dynamclib", "")
 310 endif
 311
 312 # Decide whether to build built-in, modular, or both.
 313 # Normally, just do built-in.
 314
 315 KBUILD_MODULES :=
 316 KBUILD_BUILTIN := 1
 317
 318 # If we have only "make modules", don't compile built-in objects.
 319 # When we're building modules with modversions, we need to consider
 320 # the built-in objects during the descend as well, in order to
 321 # make sure the checksums are up to date before we record them.
 322
 323 ifeq ($(MAKECMDGOALS),modules)
 324   KBUILD_BUILTIN := $(if $(CONFIG_MODVERSIONS),1)
 325 endif
 326
 327 # If we have "make <whatever> modules", compile modules
 328 # in addition to whatever we do anyway.
 329 # Just "make" or "make all" shall build modules as well
 330
 331 # U-Boot does not need modules
 332 #ifneq ($(filter all _all modules,$(MAKECMDGOALS)),)
 333 #  KBUILD_MODULES := 1
 334 #endif
 335
 336 #ifeq ($(MAKECMDGOALS),)
 337 #  KBUILD_MODULES := 1
 338 #endif
 339
 340 define size_check
 341         actual=$$( wc -c $1 | awk '{print $$1}'); \
 342         limit=$$( printf "%d" $2 ); \
 343         if test $$actual -gt $$limit; then \
 344                 echo "$1 exceeds file size limit:" >&2; \
 345                 echo "  limit:  $$limit bytes" >&2; \
 346                 echo "  actual: $$actual bytes" >&2; \
 347                 echo "  excess: $$((actual - limit)) bytes" >&2; \
 348                 exit 1; \
 349         fi
 350 endef
 351 export size_check
 352
 353 export KBUILD_MODULES KBUILD_BUILTIN
 354 export KBUILD_CHECKSRC KBUILD_SRC KBUILD_EXTMOD
 355
 356 # We need some generic definitions (do not try to remake the file).
 357 scripts/Kbuild.include: ;
 358 include scripts/Kbuild.include
 359
 360 # Make variables (CC, etc...)
 361
 362 AS              = $(CROSS_COMPILE)as
 363 # Always use GNU ld
 364 ifneq ($(shell $(CROSS_COMPILE)ld.bfd -v 2> /dev/null),)
 365 LD              = $(CROSS_COMPILE)ld.bfd
 366 else
 367 LD              = $(CROSS_COMPILE)ld
 368 endif
 369 CC              = $(CROSS_COMPILE)gcc
 370 CPP             = $(CC) -E
 371 AR              = $(CROSS_COMPILE)ar
 372 NM              = $(CROSS_COMPILE)nm
 373 LDR             = $(CROSS_COMPILE)ldr
 374 STRIP           = $(CROSS_COMPILE)strip
 375 OBJCOPY         = $(CROSS_COMPILE)objcopy
 376 OBJDUMP         = $(CROSS_COMPILE)objdump
 377 LEX             = flex
 378 YACC            = bison
 379 AWK             = awk
 380 PERL            = perl
 381 PYTHON          ?= python
 382 PYTHON2         = python2
 383 PYTHON3         = python3
 384 DTC             ?= $(objtree)/scripts/dtc/dtc
 385 CHECK           = sparse
 386
 387 CHECKFLAGS     := -D__linux__ -Dlinux -D__STDC__ -Dunix -D__unix__ \
 388                   -Wbitwise -Wno-return-void -D__CHECK_ENDIAN__ $(CF)
 389
 390 KBUILD_CPPFLAGS := -D__KERNEL__ -D__UBOOT__
 391
 392 KBUILD_CFLAGS   := -Wall -Wstrict-prototypes \
 393                    -Wno-format-security \
 394                    -fno-builtin -ffreestanding $(CSTD_FLAG)
 395 KBUILD_CFLAGS   += -fshort-wchar -fno-strict-aliasing
 396 KBUILD_AFLAGS   := -D__ASSEMBLY__
 397
 398 # Don't generate position independent code
 399 KBUILD_CFLAGS   += $(call cc-option,-fno-PIE)
 400 KBUILD_AFLAGS   += $(call cc-option,-fno-PIE)
 401
 402 # Read UBOOTRELEASE from include/config/uboot.release (if it exists)
 403 UBOOTRELEASE = $(shell cat include/config/uboot.release 2> /dev/null)
 404 UBOOTVERSION = $(VERSION)$(if $(PATCHLEVEL),.$(PATCHLEVEL)$(if $(SUBLEVEL),.$(SUBLEVEL)))$(EXTRAVERSION)
 405
 406 export VERSION PATCHLEVEL SUBLEVEL UBOOTRELEASE UBOOTVERSION
 407 export ARCH CPU BOARD VENDOR SOC CPUDIR BOARDDIR
 408 export CONFIG_SHELL HOSTCC HOSTCFLAGS HOSTLDFLAGS CROSS_COMPILE AS LD CC
 409 export CPP AR NM LDR STRIP OBJCOPY OBJDUMP
 410 export MAKE LEX YACC AWK PERL PYTHON PYTHON2 PYTHON3
 411 export HOSTCXX HOSTCXXFLAGS CHECK CHECKFLAGS DTC DTC_FLAGS
 412
 413 export KBUILD_CPPFLAGS NOSTDINC_FLAGS UBOOTINCLUDE OBJCOPYFLAGS LDFLAGS
 414 export KBUILD_CFLAGS KBUILD_AFLAGS
 415
 416 # When compiling out-of-tree modules, put MODVERDIR in the module
 417 # tree rather than in the kernel tree. The kernel tree might
 418 # even be read-only.
 419 export MODVERDIR := $(if $(KBUILD_EXTMOD),$(firstword $(KBUILD_EXTMOD))/).tmp_versions
 420
 421 # Files to ignore in find ... statements
 422
 423 export RCS_FIND_IGNORE := \( -name SCCS -o -name BitKeeper -o -name .svn -o    \
 424                           -name CVS -o -name .pc -o -name .hg -o -name .git \) \
 425                           -prune -o
 426 export RCS_TAR_IGNORE := --exclude SCCS --exclude BitKeeper --exclude .svn \
 427                          --exclude CVS --exclude .pc --exclude .hg --exclude .git
 428
 429 # ===========================================================================
 430 # Rules shared between *config targets and build targets
 431
 432 # Basic helpers built in scripts/
 433 PHONY += scripts_basic
 434 scripts_basic:
 435         $(Q)$(MAKE) $(build)=scripts/basic
 436         $(Q)rm -f .tmp_quiet_recordmcount
 437
 438 # To avoid any implicit rule to kick in, define an empty command.
 439 scripts/basic/%: scripts_basic ;
 440
 441 PHONY += outputmakefile
 442 # outputmakefile generates a Makefile in the output directory, if using a
 443 # separate output directory. This allows convenient use of make in the
 444 # output directory.
 445 outputmakefile:
 446 ifneq ($(KBUILD_SRC),)
 447         $(Q)ln -fsn $(srctree) source
 448         $(Q)$(CONFIG_SHELL) $(srctree)/scripts/mkmakefile \
 449             $(srctree) $(objtree) $(VERSION) $(PATCHLEVEL)
 450 endif
 451
 452 # To make sure we do not include .config for any of the *config targets
 453 # catch them early, and hand them over to scripts/kconfig/Makefile
 454 # It is allowed to specify more targets when calling make, including
 455 # mixing *config targets and build targets.
 456 # For example 'make oldconfig all'.
 457 # Detect when mixed targets is specified, and make a second invocation
 458 # of make so .config is not included in this case either (for *config).
 459
 460 version_h := include/generated/version_autogenerated.h
 461 timestamp_h := include/generated/timestamp_autogenerated.h
 462 defaultenv_h := include/generated/defaultenv_autogenerated.h
 463
 464 no-dot-config-targets := clean clobber mrproper distclean \
 465                          help %docs check% coccicheck \
 466                          ubootversion backup tests check qcheck
 467
 468 config-targets := 0
 469 mixed-targets  := 0
 470 dot-config     := 1
 471
 472 ifneq ($(filter $(no-dot-config-targets), $(MAKECMDGOALS)),)
 473         ifeq ($(filter-out $(no-dot-config-targets), $(MAKECMDGOALS)),)
 474                 dot-config := 0
 475         endif
 476 endif
 477
 478 ifeq ($(KBUILD_EXTMOD),)
 479         ifneq ($(filter config %config,$(MAKECMDGOALS)),)
 480                 config-targets := 1
 481                 ifneq ($(words $(MAKECMDGOALS)),1)
 482                         mixed-targets := 1
 483                 endif
 484         endif
 485 endif
 486
 487 ifeq ($(mixed-targets),1)
 488 # ===========================================================================
 489 # We're called with mixed targets (*config and build targets).
 490 # Handle them one by one.
 491
 492 PHONY += $(MAKECMDGOALS) __build_one_by_one
 493
 494 $(filter-out __build_one_by_one, $(MAKECMDGOALS)): __build_one_by_one
 495         @:
 496
 497 __build_one_by_one:
 498         $(Q)set -e; \
 499         for i in $(MAKECMDGOALS); do \
 500                 $(MAKE) -f $(srctree)/Makefile $$i; \
 501         done
 502
 503 else
 504 ifeq ($(config-targets),1)
 505 # ===========================================================================
 506 # *config targets only - make sure prerequisites are updated, and descend
 507 # in scripts/kconfig to make the *config target
 508
 509 KBUILD_DEFCONFIG := sandbox_defconfig
 510 export KBUILD_DEFCONFIG KBUILD_KCONFIG
 511
 512 config: scripts_basic outputmakefile FORCE
 513         $(Q)$(MAKE) $(build)=scripts/kconfig $@
 514
 515 %config: scripts_basic outputmakefile FORCE
 516         $(Q)$(MAKE) $(build)=scripts/kconfig $@
 517
 518 else
 519 # ===========================================================================
 520 # Build targets only - this includes vmlinux, arch specific targets, clean
 521 # targets and others. In general all targets except *config targets.
 522
 523 # Additional helpers built in scripts/
 524 # Carefully list dependencies so we do not try to build scripts twice
 525 # in parallel
 526 PHONY += scripts
 527 scripts: scripts_basic include/config/auto.conf
 528         $(Q)$(MAKE) $(build)=$(@)
 529
 530 ifeq ($(dot-config),1)
 531 # Read in config
 532 -include include/config/auto.conf
 533
 534 # Read in dependencies to all Kconfig* files, make sure to run
 535 # oldconfig if changes are detected.
 536 -include include/config/auto.conf.cmd
 537
 538 # To avoid any implicit rule to kick in, define an empty command
 539 $(KCONFIG_CONFIG) include/config/auto.conf.cmd: ;
 540
 541 # If .config is newer than include/config/auto.conf, someone tinkered
 542 # with it and forgot to run make oldconfig.
 543 # if auto.conf.cmd is missing then we are probably in a cleaned tree so
 544 # we execute the config step to be sure to catch updated Kconfig files
 545 include/config/%.conf: $(KCONFIG_CONFIG) include/config/auto.conf.cmd
 546         $(Q)$(MAKE) -f $(srctree)/Makefile syncconfig
 547         @# If the following part fails, include/config/auto.conf should be
 548         @# deleted so "make silentoldconfig" will be re-run on the next build.
 549         $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.autoconf || \
 550                 { rm -f include/config/auto.conf; false; }
 551         @# include/config.h has been updated after "make silentoldconfig".
 552         @# We need to touch include/config/auto.conf so it gets newer
 553         @# than include/config.h.
 554         @# Otherwise, 'make silentoldconfig' would be invoked twice.
 555         $(Q)touch include/config/auto.conf
 556
 557 u-boot.cfg spl/u-boot.cfg tpl/u-boot.cfg:
 558         $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.autoconf $(@)
 559
 560 -include include/autoconf.mk
 561 -include include/autoconf.mk.dep
 562
 563 # We want to include arch/$(ARCH)/config.mk only when include/config/auto.conf
 564 # is up-to-date. When we switch to a different board configuration, old CONFIG
 565 # macros are still remaining in include/config/auto.conf. Without the following
 566 # gimmick, wrong config.mk would be included leading nasty warnings/errors.
 567 ifneq ($(wildcard $(KCONFIG_CONFIG)),)
 568 ifneq ($(wildcard include/config/auto.conf),)
 569 autoconf_is_old := $(shell find . -path ./$(KCONFIG_CONFIG) -newer \
 570                                                 include/config/auto.conf)
 571 ifeq ($(autoconf_is_old),)
 572 include config.mk
 573 include arch/$(ARCH)/Makefile
 574 endif
 575 endif
 576 endif
 577
 578 # These are set by the arch-specific config.mk. Make sure they are exported
 579 # so they can be used when building an EFI application.
 580 export EFI_LDS          # Filename of EFI link script in arch/$(ARCH)/lib
 581 export EFI_CRT0         # Filename of EFI CRT0 in arch/$(ARCH)/lib
 582 export EFI_RELOC        # Filename of EFU relocation code in arch/$(ARCH)/lib
 583 export CFLAGS_EFI       # Compiler flags to add when building EFI app
 584 export CFLAGS_NON_EFI   # Compiler flags to remove when building EFI app
 585 export EFI_TARGET       # binutils target if EFI is natively supported
 586
 587 # If board code explicitly specified LDSCRIPT or CONFIG_SYS_LDSCRIPT, use
 588 # that (or fail if absent).  Otherwise, search for a linker script in a
 589 # standard location.
 590
 591 ifndef LDSCRIPT
 592         #LDSCRIPT := $(srctree)/board/$(BOARDDIR)/u-boot.lds.debug
 593         ifdef CONFIG_SYS_LDSCRIPT
 594                 # need to strip off double quotes
 595                 LDSCRIPT := $(srctree)/$(CONFIG_SYS_LDSCRIPT:"%"=%)
 596         endif
 597 endif
 598
 599 # If there is no specified link script, we look in a number of places for it
 600 ifndef LDSCRIPT
 601         ifeq ($(wildcard $(LDSCRIPT)),)
 602                 LDSCRIPT := $(srctree)/board/$(BOARDDIR)/u-boot.lds
 603         endif
 604         ifeq ($(wildcard $(LDSCRIPT)),)
 605                 LDSCRIPT := $(srctree)/$(CPUDIR)/u-boot.lds
 606         endif
 607         ifeq ($(wildcard $(LDSCRIPT)),)
 608                 LDSCRIPT := $(srctree)/arch/$(ARCH)/cpu/u-boot.lds
 609         endif
 610 endif
 611
 612 else
 613 # Dummy target needed, because used as prerequisite
 614 include/config/auto.conf: ;
 615 endif # $(dot-config)
 616
 617 #
 618 # Xtensa linker script cannot be preprocessed with -ansi because of
 619 # preprocessor operations on strings that don't make C identifiers.
 620 #
 621 ifeq ($(CONFIG_XTENSA),)
 622 LDPPFLAGS       += -ansi
 623 endif
 624
 625 ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE
 626 KBUILD_CFLAGS   += -Os
 627 else
 628 KBUILD_CFLAGS   += -O2
 629 endif
 630
 631 KBUILD_CFLAGS += $(call cc-option,-fno-stack-protector)
 632 KBUILD_CFLAGS += $(call cc-option,-fno-delete-null-pointer-checks)
 633
 634 # change __FILE__ to the relative path from the srctree
 635 KBUILD_CFLAGS   += $(call cc-option,-fmacro-prefix-map=$(srctree)/=)
 636
 637 KBUILD_CFLAGS   += -g
 638 # $(KBUILD_AFLAGS) sets -g, which causes gcc to pass a suitable -g<format>
 639 # option to the assembler.
 640 KBUILD_AFLAGS   += -g
 641
 642 # Report stack usage if supported
 643 # ARC tools based on GCC 7.1 has an issue with stack usage
 644 # with naked functions, see commit message for more details
 645 ifndef CONFIG_ARC
 646 ifeq ($(shell $(CONFIG_SHELL) $(srctree)/scripts/gcc-stack-usage.sh $(CC)),y)
 647         KBUILD_CFLAGS += -fstack-usage
 648 endif
 649 endif
 650
 651 KBUILD_CFLAGS += $(call cc-option,-Wno-format-nonliteral)
 652 ifeq ($(cc-name),clang)
 653 KBUILD_CPPFLAGS += $(call cc-option,-Qunused-arguments,)
 654 KBUILD_CFLAGS += $(call cc-disable-warning, format-invalid-specifier)
 655 KBUILD_CFLAGS += $(call cc-disable-warning, gnu)
 656 KBUILD_CFLAGS += $(call cc-disable-warning, address-of-packed-member)
 657 KBUILD_CFLAGS += $(call cc-option, -fcatch-undefined-behavior)
 658 endif
 659
 660 # turn jbsr into jsr for m68k
 661 ifeq ($(ARCH),m68k)
 662 ifeq ($(findstring 3.4,$(shell $(CC) --version)),3.4)
 663 KBUILD_AFLAGS += -Wa,-gstabs,-S
 664 endif
 665 endif
 666
 667 # Prohibit date/time macros, which would make the build non-deterministic
 668 KBUILD_CFLAGS   += $(call cc-option,-Werror=date-time)
 669
 670 include scripts/Makefile.extrawarn
 671
 672 # Add user supplied CPPFLAGS, AFLAGS and CFLAGS as the last assignments
 673 KBUILD_CPPFLAGS += $(KCPPFLAGS)
 674 KBUILD_AFLAGS += $(KAFLAGS)
 675 KBUILD_CFLAGS += $(KCFLAGS)
 676
 677 # Use UBOOTINCLUDE when you must reference the include/ directory.
 678 # Needed to be compatible with the O= option
 679 UBOOTINCLUDE    := \
 680                 -Iinclude \
 681                 $(if $(KBUILD_SRC), -I$(srctree)/include) \
 682                 $(if $(CONFIG_$(SPL_)SYS_THUMB_BUILD), \
 683                         $(if $(CONFIG_HAS_THUMB2),, \
 684                                 -I$(srctree)/arch/$(ARCH)/thumb1/include),) \
 685                 -I$(srctree)/arch/$(ARCH)/include \
 686                 -include $(srctree)/include/linux/kconfig.h
 687
 688 NOSTDINC_FLAGS += -nostdinc -isystem $(shell $(CC) -print-file-name=include)
 689 CHECKFLAGS     += $(NOSTDINC_FLAGS)
 690
 691 # FIX ME
 692 cpp_flags := $(KBUILD_CPPFLAGS) $(PLATFORM_CPPFLAGS) $(UBOOTINCLUDE) \
 693                                                         $(NOSTDINC_FLAGS)
 694 c_flags := $(KBUILD_CFLAGS) $(cpp_flags)
 695
 696 #########################################################################
 697 # U-Boot objects....order is important (i.e. start must be first)
 698
 699 HAVE_VENDOR_COMMON_LIB = $(if $(wildcard $(srctree)/board/$(VENDOR)/common/Makefile),y,n)
 700
 701 libs-y += lib/
 702 libs-$(HAVE_VENDOR_COMMON_LIB) += board/$(VENDOR)/common/
 703 libs-$(CONFIG_OF_EMBED) += dts/
 704 libs-y += fs/
 705 libs-y += net/
 706 libs-y += disk/
 707 libs-y += drivers/
 708 libs-y += drivers/dma/
 709 libs-y += drivers/gpio/
 710 libs-y += drivers/i2c/
 711 libs-y += drivers/mtd/
 712 libs-$(CONFIG_CMD_NAND) += drivers/mtd/nand/raw/
 713 libs-y += drivers/mtd/onenand/
 714 libs-$(CONFIG_CMD_UBI) += drivers/mtd/ubi/
 715 libs-y += drivers/mtd/spi/
 716 libs-y += drivers/net/
 717 libs-y += drivers/net/phy/
 718 libs-y += drivers/power/ \
 719         drivers/power/domain/ \
 720         drivers/power/fuel_gauge/ \
 721         drivers/power/mfd/ \
 722         drivers/power/pmic/ \
 723         drivers/power/battery/ \
 724         drivers/power/regulator/
 725 libs-y += drivers/spi/
 726 libs-$(CONFIG_FMAN_ENET) += drivers/net/fm/
 727 libs-$(CONFIG_SYS_FSL_DDR) += drivers/ddr/fsl/
 728 libs-$(CONFIG_SYS_FSL_MMDC) += drivers/ddr/fsl/
 729 libs-$(CONFIG_$(SPL_)ALTERA_SDRAM) += drivers/ddr/altera/
 730 libs-y += drivers/serial/
 731 libs-y += drivers/usb/dwc3/
 732 libs-y += drivers/usb/common/
 733 libs-y += drivers/usb/emul/
 734 libs-y += drivers/usb/eth/
 735 libs-$(CONFIG_USB_GADGET) += drivers/usb/gadget/
 736 libs-$(CONFIG_USB_GADGET) += drivers/usb/gadget/udc/
 737 libs-y += drivers/usb/host/
 738 libs-y += drivers/usb/musb/
 739 libs-y += drivers/usb/musb-new/
 740 libs-y += drivers/usb/phy/
 741 libs-y += drivers/usb/ulpi/
 742 libs-y += cmd/
 743 libs-y += common/
 744 libs-y += env/
 745 libs-$(CONFIG_API) += api/
 746 libs-$(CONFIG_HAS_POST) += post/
 747 libs-$(CONFIG_UNIT_TEST) += test/ test/dm/
 748 libs-$(CONFIG_UT_ENV) += test/env/
 749 libs-$(CONFIG_UT_OVERLAY) += test/overlay/
 750
 751 libs-y += $(if $(BOARDDIR),board/$(BOARDDIR)/)
 752
 753 libs-y := $(sort $(libs-y))
 754
 755 u-boot-dirs     := $(patsubst %/,%,$(filter %/, $(libs-y))) tools examples
 756
 757 u-boot-alldirs  := $(sort $(u-boot-dirs) $(patsubst %/,%,$(filter %/, $(libs-))))
 758
 759 libs-y          := $(patsubst %/, %/built-in.o, $(libs-y))
 760
 761 u-boot-init := $(head-y)
 762 u-boot-main := $(libs-y)
 763
 764
 765 # Add GCC lib
 766 ifeq ($(CONFIG_USE_PRIVATE_LIBGCC),y)
 767 PLATFORM_LIBGCC = arch/$(ARCH)/lib/lib.a
 768 else
 769 PLATFORM_LIBGCC := -L $(shell dirname `$(CC) $(c_flags) -print-libgcc-file-name`) -lgcc
 770 endif
 771 PLATFORM_LIBS += $(PLATFORM_LIBGCC)
 772
 773 ifdef CONFIG_CC_COVERAGE
 774 KBUILD_CFLAGS += --coverage
 775 PLATFORM_LIBGCC += -lgcov
 776 endif
 777
 778 export PLATFORM_LIBS
 779 export PLATFORM_LIBGCC
 780
 781 # Special flags for CPP when processing the linker script.
 782 # Pass the version down so we can handle backwards compatibility
 783 # on the fly.
 784 LDPPFLAGS += \
 785         -include $(srctree)/include/u-boot/u-boot.lds.h \
 786         -DCPUDIR=$(CPUDIR) \
 787         $(shell $(LD) --version | \
 788           sed -ne 's/GNU ld version \([0-9][0-9]*\)\.\([0-9][0-9]*\).*/-DLD_MAJOR=\1 -DLD_MINOR=\2/p')
 789
 790 #########################################################################
 791 #########################################################################
 792
 793 ifneq ($(CONFIG_BOARD_SIZE_LIMIT),)
 794 BOARD_SIZE_CHECK= @ $(call size_check,$@,$(CONFIG_BOARD_SIZE_LIMIT))
 795 else
 796 BOARD_SIZE_CHECK =
 797 endif
 798
 799 ifneq ($(CONFIG_SPL_SIZE_LIMIT),0)
 800 SPL_SIZE_CHECK = @$(call size_check,$@,$$(tools/spl_size_limit))
 801 else
 802 SPL_SIZE_CHECK =
 803 endif
 804
 805 # Statically apply RELA-style relocations (currently arm64 only)
 806 # This is useful for arm64 where static relocation needs to be performed on
 807 # the raw binary, but certain simulators only accept an ELF file (but don't
 808 # do the relocation).
 809 ifneq ($(CONFIG_STATIC_RELA),)
 810 # $(1) is u-boot ELF, $(2) is u-boot bin, $(3) is text base
 811 DO_STATIC_RELA = \
 812         start=$$($(NM) $(1) | grep __rel_dyn_start | cut -f 1 -d ' '); \
 813         end=$$($(NM) $(1) | grep __rel_dyn_end | cut -f 1 -d ' '); \
 814         tools/relocate-rela $(2) $(3) $$start $$end
 815 else
 816 DO_STATIC_RELA =
 817 endif
 818
 819 # Always append ALL so that arch config.mk's can add custom ones
 820 ALL-y += u-boot.srec u-boot.bin u-boot.sym System.map binary_size_check
 821
 822 ALL-$(CONFIG_ONENAND_U_BOOT) += u-boot-onenand.bin
 823 ifeq ($(CONFIG_SPL_FSL_PBL),y)
 824 ALL-$(CONFIG_RAMBOOT_PBL) += u-boot-with-spl-pbl.bin
 825 else
 826 ifneq ($(CONFIG_SECURE_BOOT), y)
 827 # For Secure Boot The Image needs to be signed and Header must also
 828 # be included. So The image has to be built explicitly
 829 ALL-$(CONFIG_RAMBOOT_PBL) += u-boot.pbl
 830 endif
 831 endif
 832 ALL-$(CONFIG_SPL) += spl/u-boot-spl.bin
 833 ifeq ($(CONFIG_MX6)$(CONFIG_SECURE_BOOT), yy)
 834 ALL-$(CONFIG_SPL_FRAMEWORK) += u-boot-ivt.img
 835 else
 836 ifeq ($(CONFIG_MX7)$(CONFIG_SECURE_BOOT), yy)
 837 ALL-$(CONFIG_SPL_FRAMEWORK) += u-boot-ivt.img
 838 else
 839 ALL-$(CONFIG_SPL_FRAMEWORK) += u-boot.img
 840 endif
 841 endif
 842 ALL-$(CONFIG_TPL) += tpl/u-boot-tpl.bin
 843 ALL-$(CONFIG_OF_SEPARATE) += u-boot.dtb
 844 ifeq ($(CONFIG_SPL_FRAMEWORK),y)
 845 ALL-$(CONFIG_OF_SEPARATE) += u-boot-dtb.img
 846 endif
 847 ALL-$(CONFIG_OF_HOSTFILE) += u-boot.dtb
 848 ifneq ($(CONFIG_SPL_TARGET),)
 849 ALL-$(CONFIG_SPL) += $(CONFIG_SPL_TARGET:"%"=%)
 850 endif
 851 ALL-$(CONFIG_REMAKE_ELF) += u-boot.elf
 852 ALL-$(CONFIG_EFI_APP) += u-boot-app.efi
 853 ALL-$(CONFIG_EFI_STUB) += u-boot-payload.efi
 854
 855 ifneq ($(BUILD_ROM)$(CONFIG_BUILD_ROM),)
 856 ALL-$(CONFIG_X86_RESET_VECTOR) += u-boot.rom
 857 endif
 858
 859 # Build a combined spl + u-boot image for sunxi
 860 ifeq ($(CONFIG_ARCH_SUNXI)$(CONFIG_SPL),yy)
 861 ALL-y += u-boot-sunxi-with-spl.bin
 862 endif
 863
 864 # enable combined SPL/u-boot/dtb rules for tegra
 865 ifeq ($(CONFIG_TEGRA)$(CONFIG_SPL),yy)
 866 ALL-y += u-boot-tegra.bin u-boot-nodtb-tegra.bin
 867 ALL-$(CONFIG_OF_SEPARATE) += u-boot-dtb-tegra.bin
 868 endif
 869
 870 ALL-$(CONFIG_ARCH_MEDIATEK) += u-boot-mtk.bin
 871
 872 # Add optional build target if defined in board/cpu/soc headers
 873 ifneq ($(CONFIG_BUILD_TARGET),)
 874 ALL-y += $(CONFIG_BUILD_TARGET:"%"=%)
 875 endif
 876
 877 ifneq ($(CONFIG_SYS_INIT_SP_BSS_OFFSET),)
 878 ALL-y += init_sp_bss_offset_check
 879 endif
 880
 881 ifeq ($(CONFIG_MPC85xx)$(CONFIG_OF_SEPARATE),yy)
 882 ALL-y += u-boot-with-dtb.bin
 883 endif
 884
 885 LDFLAGS_u-boot += $(LDFLAGS_FINAL)
 886
 887 # Avoid 'Not enough room for program headers' error on binutils 2.28 onwards.
 888 LDFLAGS_u-boot += $(call ld-option, --no-dynamic-linker)
 889
 890 ifeq ($(CONFIG_ARC)$(CONFIG_NIOS2)$(CONFIG_X86)$(CONFIG_XTENSA),)
 891 LDFLAGS_u-boot += -Ttext $(CONFIG_SYS_TEXT_BASE)
 892 endif
 893
 894 # Normally we fill empty space with 0xff
 895 quiet_cmd_objcopy = OBJCOPY $@
 896 cmd_objcopy = $(OBJCOPY) --gap-fill=0xff $(OBJCOPYFLAGS) \
 897         $(OBJCOPYFLAGS_$(@F)) $< $@
 898
 899 # Provide a version which does not do this, for use by EFI
 900 quiet_cmd_zobjcopy = OBJCOPY $@
 901 cmd_zobjcopy = $(OBJCOPY) $(OBJCOPYFLAGS) $(OBJCOPYFLAGS_$(@F)) $< $@
 902
 903 quiet_cmd_efipayload = OBJCOPY $@
 904 cmd_efipayload = $(OBJCOPY) -I binary -O $(EFIPAYLOAD_BFDTARGET) -B $(EFIPAYLOAD_BFDARCH) $< $@
 905
 906 MKIMAGEOUTPUT ?= /dev/null
 907
 908 quiet_cmd_mkimage = MKIMAGE $@
 909 cmd_mkimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -d $< $@ \
 910         >$(MKIMAGEOUTPUT) $(if $(KBUILD_VERBOSE:0=), && cat $(MKIMAGEOUTPUT))
 911
 912 quiet_cmd_mkfitimage = MKIMAGE $@
 913 cmd_mkfitimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -f $(U_BOOT_ITS) -p $(CONFIG_FIT_EXTERNAL_OFFSET) $@\
 914         >$(MKIMAGEOUTPUT) $(if $(KBUILD_VERBOSE:0=), && cat $(MKIMAGEOUTPUT))
 915
 916 quiet_cmd_cat = CAT     $@
 917 cmd_cat = cat $(filter-out $(PHONY), $^) > $@
 918
 919 append = cat $(filter-out $< $(PHONY), $^) >> $@
 920
 921 quiet_cmd_pad_cat = CAT     $@
 922 cmd_pad_cat = $(cmd_objcopy) && $(append) || rm -f $@
 923
 924 cfg: u-boot.cfg
 925
 926 quiet_cmd_cfgcheck = CFGCHK  $2
 927 cmd_cfgcheck = $(srctree)/scripts/check-config.sh $2 \
 928                 $(srctree)/scripts/config_whitelist.txt $(srctree)
 929
 930 all:            $(ALL-y)
 931 ifeq ($(CONFIG_DEPRECATED),y)
 932         $(warning "You have deprecated configuration options enabled in your .config! Please check your configuration.")
 933 ifeq ($(CONFIG_SPI),y)
 934 ifneq ($(CONFIG_DM_SPI)$(CONFIG_OF_CONTROL),yy)
 935         $(warning "The relevant config item with associated code will remove in v2019.07 release.")
 936 endif
 937 endif
 938 endif
 939 ifeq ($(CONFIG_DM_I2C_COMPAT)$(CONFIG_SANDBOX),y)
 940         @echo >&2 "===================== WARNING ======================"
 941         @echo >&2 "This board uses CONFIG_DM_I2C_COMPAT. Please remove"
 942         @echo >&2 "(possibly in a subsequent patch in your series)"
 943         @echo >&2 "before sending patches to the mailing list."
 944         @echo >&2 "===================================================="
 945 endif
 946 ifeq ($(CONFIG_MMC),y)
 947 ifneq ($(CONFIG_DM_MMC)$(CONFIG_OF_CONTROL)$(CONFIG_BLK),yyy)
 948         @echo >&2 "===================== WARNING ======================"
 949         @echo >&2 "This board does not use CONFIG_DM_MMC. Please update"
 950         @echo >&2 "the board to use CONFIG_DM_MMC before the v2019.04 release."
 951         @echo >&2 "Failure to update by the deadline may result in board removal."
 952         @echo >&2 "See doc/driver-model/MIGRATION.txt for more info."
 953         @echo >&2 "===================================================="
 954 endif
 955 endif
 956 ifeq ($(CONFIG_USB),y)
 957 ifneq ($(CONFIG_DM_USB)$(CONFIG_OF_CONTROL)$(CONFIG_BLK),yyy)
 958         @echo >&2 "===================== WARNING ======================"
 959         @echo >&2 "This board does not use CONFIG_DM_USB. Please update"
 960         @echo >&2 "the board to use CONFIG_DM_USB before the v2019.07 release."
 961         @echo >&2 "Failure to update by the deadline may result in board removal."
 962         @echo >&2 "See doc/driver-model/MIGRATION.txt for more info."
 963         @echo >&2 "===================================================="
 964 endif
 965 endif
 966 ifeq ($(CONFIG_MVSATA_IDE),y)
 967         @echo >&2 "===================== WARNING ======================"
 968         @echo >&2 "This board does use CONFIG_MVSATA_IDE which is not"
 969         @echo >&2 "ported to driver-model (DM) yet. Please update the storage"
 970         @echo >&2 "controller driver to use CONFIG_AHCI before the v2019.07"
 971         @echo >&2 "release."
 972         @echo >&2 "Failure to update by the deadline may result in board removal."
 973         @echo >&2 "See doc/driver-model/MIGRATION.txt for more info."
 974         @echo >&2 "===================================================="
 975 endif
 976 ifeq ($(CONFIG_LIBATA),y)
 977 ifneq ($(CONFIG_AHCI),y)
 978         @echo >&2 "===================== WARNING ======================"
 979         @echo >&2 "This board does use CONFIG_LIBATA but has CONFIG_AHCI not"
 980         @echo >&2 "enabled. Please update the storage controller driver to use"
 981         @echo >&2 "CONFIG_AHCI before the v2019.07 release."
 982         @echo >&2 "Failure to update by the deadline may result in board removal."
 983         @echo >&2 "See doc/driver-model/MIGRATION.txt for more info."
 984         @echo >&2 "===================================================="
 985 endif
 986 endif
 987 ifeq ($(CONFIG_PCI),y)
 988 ifneq ($(CONFIG_DM_PCI),y)
 989         @echo >&2 "===================== WARNING ======================"
 990         @echo >&2 "This board does not use CONFIG_DM_PCI Please update"
 991         @echo >&2 "the board to use CONFIG_DM_PCI before the v2019.07 release."
 992         @echo >&2 "Failure to update by the deadline may result in board removal."
 993         @echo >&2 "See doc/driver-model/MIGRATION.txt for more info."
 994         @echo >&2 "===================================================="
 995 endif
 996 endif
 997 ifneq ($(CONFIG_LCD)$(CONFIG_VIDEO),)
 998 ifneq ($(CONFIG_DM_VIDEO),y)
 999         @echo >&2 "===================== WARNING ======================"
1000         @echo >&2 "This board does not use CONFIG_DM_VIDEO Please update"
1001         @echo >&2 "the board to use CONFIG_DM_VIDEO before the v2019.07 release."
1002         @echo >&2 "Failure to update by the deadline may result in board removal."
1003         @echo >&2 "See doc/driver-model/MIGRATION.txt for more info."
1004         @echo >&2 "===================================================="
1005 endif
1006 endif
1007 ifeq ($(CONFIG_OF_EMBED),y)
1008         @echo >&2 "===================== WARNING ======================"
1009         @echo >&2 "CONFIG_OF_EMBED is enabled. This option should only"
1010         @echo >&2 "be used for debugging purposes. Please use"
1011         @echo >&2 "CONFIG_OF_SEPARATE for boards in mainline."
1012         @echo >&2 "See doc/README.fdt-control for more info."
1013         @echo >&2 "===================================================="
1014 endif
1015 ifeq ($(CONFIG_SPI_FLASH),y)
1016 ifneq ($(CONFIG_DM_SPI_FLASH)$(CONFIG_OF_CONTROL),yy)
1017         @echo >&2 "===================== WARNING ======================"
1018         @echo >&2 "This board does not use CONFIG_DM_SPI_FLASH. Please update"
1019         @echo >&2 "the board to use CONFIG_SPI_FLASH before the v2019.07 release."
1020         @echo >&2 "Failure to update by the deadline may result in board removal."
1021         @echo >&2 "See doc/driver-model/MIGRATION.txt for more info."
1022         @echo >&2 "===================================================="
1023 endif
1024 endif
1025 ifneq ($(CONFIG_WATCHDOG)$(CONFIG_HW_WATCHDOG),)
1026 ifneq ($(CONFIG_WDT),y)
1027         @echo >&2 "===================== WARNING ======================"
1028         @echo >&2 "This board does not use CONFIG_WDT (DM watchdog support)."
1029         @echo >&2 "Please update the board to use CONFIG_WDT before the"
1030         @echo >&2 "v2019.10 release."
1031         @echo >&2 "Failure to update by the deadline may result in board removal."
1032         @echo >&2 "See doc/driver-model/MIGRATION.txt for more info."
1033         @echo >&2 "===================================================="
1034 endif
1035 endif
1036         @# Check that this build does not use CONFIG options that we do not
1037         @# know about unless they are in Kconfig. All the existing CONFIG
1038         @# options are whitelisted, so new ones should not be added.
1039         $(call cmd,cfgcheck,u-boot.cfg)
1040
1041 PHONY += dtbs
1042 dtbs: dts/dt.dtb
1043         @:
1044 dts/dt.dtb: u-boot
1045         $(Q)$(MAKE) $(build)=dts dtbs
1046
1047 quiet_cmd_copy = COPY    $@
1048       cmd_copy = cp $< $@
1049
1050 ifeq ($(CONFIG_MULTI_DTB_FIT),y)
1051
1052 ifeq ($(CONFIG_MULTI_DTB_FIT_LZO),y)
1053 FINAL_DTB_CONTAINER = fit-dtb.blob.lzo
1054 else ifeq ($(CONFIG_MULTI_DTB_FIT_GZIP),y)
1055 FINAL_DTB_CONTAINER = fit-dtb.blob.gz
1056 else
1057 FINAL_DTB_CONTAINER = fit-dtb.blob
1058 endif
1059
1060 fit-dtb.blob.gz: fit-dtb.blob
1061         @gzip -kf9 $< > $@
1062
1063 fit-dtb.blob.lzo: fit-dtb.blob
1064         @lzop -f9 $< > $@
1065
1066 fit-dtb.blob: dts/dt.dtb FORCE
1067         $(call if_changed,mkimage)
1068 ifneq ($(SOURCE_DATE_EPOCH),)
1069         touch -d @$(SOURCE_DATE_EPOCH) fit-dtb.blob
1070         chmod 0600 fit-dtb.blob
1071 endif
1072
1073 MKIMAGEFLAGS_fit-dtb.blob = -f auto -A $(ARCH) -T firmware -C none -O u-boot \
1074         -a 0 -e 0 -E \
1075         $(patsubst %,-b arch/$(ARCH)/dts/%.dtb,$(subst ",,$(CONFIG_OF_LIST))) -d /dev/null
1076
1077 ifneq ($(EXT_DTB),)
1078 u-boot-fit-dtb.bin: u-boot-nodtb.bin $(EXT_DTB)
1079                 $(call if_changed,cat)
1080 else
1081 u-boot-fit-dtb.bin: u-boot-nodtb.bin $(FINAL_DTB_CONTAINER)
1082         $(call if_changed,cat)
1083 endif
1084
1085 u-boot.bin: u-boot-fit-dtb.bin FORCE
1086         $(call if_changed,copy)
1087 else ifeq ($(CONFIG_OF_SEPARATE),y)
1088 u-boot-dtb.bin: u-boot-nodtb.bin dts/dt.dtb FORCE
1089         $(call if_changed,cat)
1090
1091 u-boot.bin: u-boot-dtb.bin FORCE
1092         $(call if_changed,copy)
1093 else
1094 u-boot.bin: u-boot-nodtb.bin FORCE
1095         $(call if_changed,copy)
1096 endif
1097
1098 %.imx: %.bin
1099         $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@
1100         $(BOARD_SIZE_CHECK)
1101
1102 %.vyb: %.imx
1103         $(Q)$(MAKE) $(build)=arch/arm/cpu/armv7/vf610 $@
1104
1105 quiet_cmd_copy = COPY    $@
1106       cmd_copy = cp $< $@
1107
1108 u-boot.dtb: dts/dt.dtb
1109         $(call cmd,copy)
1110
1111 OBJCOPYFLAGS_u-boot.hex := -O ihex
1112
1113 OBJCOPYFLAGS_u-boot.srec := -O srec
1114
1115 u-boot.hex u-boot.srec: u-boot FORCE
1116         $(call if_changed,objcopy)
1117
1118 OBJCOPYFLAGS_u-boot-elf.srec := $(OBJCOPYFLAGS_u-boot.srec)
1119
1120 u-boot-elf.srec: u-boot.elf FORCE
1121         $(call if_changed,objcopy)
1122
1123 OBJCOPYFLAGS_u-boot-spl.srec = $(OBJCOPYFLAGS_u-boot.srec)
1124
1125 spl/u-boot-spl.srec: spl/u-boot-spl FORCE
1126         $(call if_changed,objcopy)
1127
1128 %.scif: %.srec
1129         $(Q)$(MAKE) $(build)=arch/arm/mach-rmobile $@
1130
1131 OBJCOPYFLAGS_u-boot-nodtb.bin := -O binary \
1132                 $(if $(CONFIG_X86_16BIT_INIT),-R .start16 -R .resetvec) \
1133                 $(if $(CONFIG_MPC85XX_HAVE_RESET_VECTOR),-R .bootpg -R .resetvec)
1134
1135 OBJCOPYFLAGS_u-boot-spl.hex = $(OBJCOPYFLAGS_u-boot.hex)
1136
1137 spl/u-boot-spl.hex: spl/u-boot-spl FORCE
1138         $(call if_changed,objcopy)
1139
1140 binary_size_check: u-boot-nodtb.bin FORCE
1141         @file_size=$(shell wc -c u-boot-nodtb.bin | awk '{print $$1}') ; \
1142         map_size=$(shell cat u-boot.map | \
1143                 awk '/_image_copy_start/ {start = $$1} /_image_binary_end/ {end = $$1} END {if (start != "" && end != "") print "ibase=16; " toupper(end) " - " toupper(start)}' \
1144                 | sed 's/0X//g' \
1145                 | bc); \
1146         if [ "" != "$$map_size" ]; then \
1147                 if test $$map_size -ne $$file_size; then \
1148                         echo "u-boot.map shows a binary size of $$map_size" >&2 ; \
1149                         echo "  but u-boot-nodtb.bin shows $$file_size" >&2 ; \
1150                         exit 1; \
1151                 fi \
1152         fi
1153
1154 ifneq ($(CONFIG_SYS_INIT_SP_BSS_OFFSET),)
1155 ifneq ($(CONFIG_SYS_MALLOC_F_LEN),)
1156 subtract_sys_malloc_f_len = space=$$(($${space} - $(CONFIG_SYS_MALLOC_F_LEN)))
1157 else
1158 subtract_sys_malloc_f_len = true
1159 endif
1160 # The 1/4 margin below is somewhat arbitrary. The likely initial SP usage is
1161 # so low that the DTB could probably use 90%+ of the available space, for
1162 # current values of CONFIG_SYS_INIT_SP_BSS_OFFSET at least. However, let's be
1163 # safe for now and tweak this later if space becomes tight.
1164 # A rejected alternative would be to check that some absolute minimum stack
1165 # space was available. However, since CONFIG_SYS_INIT_SP_BSS_OFFSET is
1166 # deliberately build-specific, to take account of build-to-build stack usage
1167 # differences due to different feature sets, there is no common absolute value
1168 # to check against.
1169 init_sp_bss_offset_check: u-boot.dtb FORCE
1170         @dtb_size=$(shell wc -c u-boot.dtb | awk '{print $$1}') ; \
1171         space=$(CONFIG_SYS_INIT_SP_BSS_OFFSET) ; \
1172         $(subtract_sys_malloc_f_len) ; \
1173         quarter_space=$$(($${space} / 4)) ; \
1174         if [ $${dtb_size} -gt $${quarter_space} ]; then \
1175                 echo "u-boot.dtb is larger than 1 quarter of " >&2 ; \
1176                 echo "(CONFIG_SYS_INIT_SP_BSS_OFFSET - CONFIG_SYS_MALLOC_F_LEN)" >&2 ; \
1177                 exit 1 ; \
1178         fi
1179 endif
1180
1181 u-boot-nodtb.bin: u-boot FORCE
1182         $(call if_changed,objcopy)
1183         $(call DO_STATIC_RELA,$<,$@,$(CONFIG_SYS_TEXT_BASE))
1184         $(BOARD_SIZE_CHECK)
1185
1186 u-boot.ldr:     u-boot
1187                 $(CREATE_LDR_ENV)
1188                 $(LDR) -T $(CONFIG_CPU) -c $@ $< $(LDR_FLAGS)
1189                 $(BOARD_SIZE_CHECK)
1190
1191 # binman
1192 # ---------------------------------------------------------------------------
1193 # Use 'make BINMAN_DEBUG=1' to enable debugging
1194 quiet_cmd_binman = BINMAN  $@
1195 cmd_binman = $(srctree)/tools/binman/binman -u -d u-boot.dtb -O . -m \
1196                 -I . -I $(srctree) -I $(srctree)/board/$(BOARDDIR) \
1197                 $(if $(BINMAN_DEBUG),-D) $(BINMAN_$(@F)) $<
1198
1199 OBJCOPYFLAGS_u-boot.ldr.hex := -I binary -O ihex
1200
1201 OBJCOPYFLAGS_u-boot.ldr.srec := -I binary -O srec
1202
1203 u-boot.ldr.hex u-boot.ldr.srec: u-boot.ldr FORCE
1204         $(call if_changed,objcopy)
1205
1206 #
1207 # U-Boot entry point, needed for booting of full-blown U-Boot
1208 # from the SPL U-Boot version.
1209 #
1210 ifndef CONFIG_SYS_UBOOT_START
1211 CONFIG_SYS_UBOOT_START := 0
1212 endif
1213
1214 # Boards with more complex image requirments can provide an .its source file
1215 # or a generator script
1216 ifneq ($(CONFIG_SPL_FIT_SOURCE),"")
1217 U_BOOT_ITS = $(subst ",,$(CONFIG_SPL_FIT_SOURCE))
1218 else
1219 ifneq ($(CONFIG_SPL_FIT_GENERATOR),"")
1220 U_BOOT_ITS := u-boot.its
1221 ifeq ($(CONFIG_SPL_FIT_GENERATOR),"arch/arm/mach-imx/mkimage_fit_atf.sh")
1222 U_BOOT_ITS_DEPS += u-boot-nodtb.bin
1223 endif
1224 ifeq ($(CONFIG_SPL_FIT_GENERATOR),"arch/arm/mach-rockchip/make_fit_atf.py")
1225 U_BOOT_ITS_DEPS += u-boot
1226 endif
1227 $(U_BOOT_ITS): $(U_BOOT_ITS_DEPS) FORCE
1228         $(srctree)/$(CONFIG_SPL_FIT_GENERATOR) \
1229         $(patsubst %,arch/$(ARCH)/dts/%.dtb,$(subst ",,$(CONFIG_OF_LIST))) > $@
1230 endif
1231 endif
1232
1233 ifdef CONFIG_SPL_LOAD_FIT
1234 MKIMAGEFLAGS_u-boot.img = -f auto -A $(ARCH) -T firmware -C none -O u-boot \
1235         -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \
1236         -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board" -E \
1237         $(patsubst %,-b arch/$(ARCH)/dts/%.dtb,$(subst ",,$(CONFIG_OF_LIST)))
1238 else
1239 MKIMAGEFLAGS_u-boot.img = -A $(ARCH) -T firmware -C none -O u-boot \
1240         -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \
1241         -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board"
1242 MKIMAGEFLAGS_u-boot-ivt.img = -A $(ARCH) -T firmware_ivt -C none -O u-boot \
1243         -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \
1244         -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board"
1245 u-boot-ivt.img: MKIMAGEOUTPUT = u-boot-ivt.img.log
1246 CLEAN_FILES += u-boot-ivt.img.log u-boot-dtb.imx.log SPL.log u-boot.imx.log
1247 endif
1248
1249 MKIMAGEFLAGS_u-boot-dtb.img = $(MKIMAGEFLAGS_u-boot.img)
1250
1251 MKIMAGEFLAGS_u-boot.kwb = -n $(srctree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%) \
1252         -T kwbimage -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE)
1253
1254 MKIMAGEFLAGS_u-boot-spl.kwb = -n $(srctree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%) \
1255         -T kwbimage -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE) \
1256         $(if $(KEYDIR),-k $(KEYDIR))
1257
1258 MKIMAGEFLAGS_u-boot.pbl = -n $(srctree)/$(CONFIG_SYS_FSL_PBL_RCW:"%"=%) \
1259                 -R $(srctree)/$(CONFIG_SYS_FSL_PBL_PBI:"%"=%) -T pblimage
1260
1261 u-boot-dtb.img u-boot.img u-boot.kwb u-boot.pbl u-boot-ivt.img: \
1262                 $(if $(CONFIG_SPL_LOAD_FIT),u-boot-nodtb.bin dts/dt.dtb,u-boot.bin) FORCE
1263         $(call if_changed,mkimage)
1264         $(BOARD_SIZE_CHECK)
1265
1266 ifeq ($(CONFIG_SPL_LOAD_FIT_FULL),y)
1267 MKIMAGEFLAGS_u-boot.itb =
1268 else
1269 MKIMAGEFLAGS_u-boot.itb = -E
1270 endif
1271
1272 u-boot.itb: u-boot-nodtb.bin dts/dt.dtb $(U_BOOT_ITS) FORCE
1273         $(call if_changed,mkfitimage)
1274         $(BOARD_SIZE_CHECK)
1275
1276 u-boot-spl.kwb: u-boot.img spl/u-boot-spl.bin FORCE
1277         $(call if_changed,mkimage)
1278
1279 u-boot.sha1:    u-boot.bin
1280                 tools/ubsha1 u-boot.bin
1281
1282 u-boot.dis:     u-boot
1283                 $(OBJDUMP) -d $< > $@
1284
1285 ifneq ($(CONFIG_SPL_PAYLOAD),)
1286 SPL_PAYLOAD := $(CONFIG_SPL_PAYLOAD:"%"=%)
1287 else
1288 SPL_PAYLOAD := u-boot.bin
1289 endif
1290
1291 SPL_IMAGE := $(CONFIG_SPL_IMAGE:"%"=%)
1292
1293 OBJCOPYFLAGS_u-boot-with-spl.bin = -I binary -O binary \
1294                                    --pad-to=$(CONFIG_SPL_PAD_TO)
1295 u-boot-with-spl.bin: $(SPL_IMAGE) $(SPL_PAYLOAD) FORCE
1296         $(call if_changed,pad_cat)
1297
1298 ifeq ($(CONFIG_ARCH_LPC32XX)$(CONFIG_SPL),yy)
1299 MKIMAGEFLAGS_lpc32xx-spl.img = -T lpc32xximage -a $(CONFIG_SPL_TEXT_BASE)
1300
1301 lpc32xx-spl.img: spl/u-boot-spl.bin FORCE
1302         $(call if_changed,mkimage)
1303
1304 OBJCOPYFLAGS_lpc32xx-boot-0.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO)
1305
1306 lpc32xx-boot-0.bin: lpc32xx-spl.img FORCE
1307         $(call if_changed,objcopy)
1308
1309 OBJCOPYFLAGS_lpc32xx-boot-1.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO)
1310
1311 lpc32xx-boot-1.bin: lpc32xx-spl.img FORCE
1312         $(call if_changed,objcopy)
1313
1314 lpc32xx-full.bin: lpc32xx-boot-0.bin lpc32xx-boot-1.bin u-boot.img FORCE
1315         $(call if_changed,cat)
1316
1317 CLEAN_FILES += lpc32xx-*
1318 endif
1319
1320 OBJCOPYFLAGS_u-boot-with-tpl.bin = -I binary -O binary \
1321                                    --pad-to=$(CONFIG_TPL_PAD_TO)
1322 tpl/u-boot-with-tpl.bin: tpl/u-boot-tpl.bin u-boot.bin FORCE
1323         $(call if_changed,pad_cat)
1324
1325 SPL: spl/u-boot-spl.bin FORCE
1326         $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@
1327
1328 ifeq ($(CONFIG_ARCH_IMX8M)$(CONFIG_ARCH_IMX8), y)
1329 flash.bin: spl/u-boot-spl.bin u-boot.itb FORCE
1330         $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@
1331 endif
1332
1333 u-boot-with-spl.imx u-boot-with-nand-spl.imx: SPL u-boot.bin FORCE
1334         $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@
1335
1336 MKIMAGEFLAGS_u-boot.ubl = -n $(UBL_CONFIG) -T ublimage -e $(CONFIG_SYS_TEXT_BASE)
1337
1338 u-boot.ubl: u-boot-with-spl.bin FORCE
1339         $(call if_changed,mkimage)
1340
1341 MKIMAGEFLAGS_u-boot-spl.ais = -s -n $(if $(CONFIG_AIS_CONFIG_FILE), \
1342         $(srctree)/$(CONFIG_AIS_CONFIG_FILE:"%"=%),"/dev/null") \
1343         -T aisimage -e $(CONFIG_SPL_TEXT_BASE)
1344 spl/u-boot-spl.ais: spl/u-boot-spl.bin FORCE
1345         $(call if_changed,mkimage)
1346
1347 OBJCOPYFLAGS_u-boot.ais = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO)
1348 u-boot.ais: spl/u-boot-spl.ais u-boot.img FORCE
1349         $(call if_changed,pad_cat)
1350
1351 u-boot-signed.sb: u-boot.bin spl/u-boot-spl.bin
1352         $(Q)$(MAKE) $(build)=arch/arm/cpu/arm926ejs/mxs u-boot-signed.sb
1353 u-boot.sb: u-boot.bin spl/u-boot-spl.bin
1354         $(Q)$(MAKE) $(build)=arch/arm/cpu/arm926ejs/mxs u-boot.sb
1355
1356 # On x600 (SPEAr600) U-Boot is appended to U-Boot SPL.
1357 # Both images are created using mkimage (crc etc), so that the ROM
1358 # bootloader can check its integrity. Padding needs to be done to the
1359 # SPL image (with mkimage header) and not the binary. Otherwise the resulting image
1360 # which is loaded/copied by the ROM bootloader to SRAM doesn't fit.
1361 # The resulting image containing both U-Boot images is called u-boot.spr
1362 MKIMAGEFLAGS_u-boot-spl.img = -A $(ARCH) -T firmware -C none \
1363         -a $(CONFIG_SPL_TEXT_BASE) -e $(CONFIG_SPL_TEXT_BASE) -n XLOADER
1364 spl/u-boot-spl.img: spl/u-boot-spl.bin FORCE
1365         $(call if_changed,mkimage)
1366
1367 OBJCOPYFLAGS_u-boot.spr = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) \
1368                           --gap-fill=0xff
1369 u-boot.spr: spl/u-boot-spl.img u-boot.img FORCE
1370         $(call if_changed,pad_cat)
1371
1372 ifneq ($(CONFIG_ARCH_SOCFPGA),)
1373 quiet_cmd_socboot = SOCBOOT $@
1374 cmd_socboot = cat       spl/u-boot-spl.sfp spl/u-boot-spl.sfp   \
1375                         spl/u-boot-spl.sfp spl/u-boot-spl.sfp   \
1376                         u-boot.img > $@ || rm -f $@
1377 u-boot-with-spl.sfp: spl/u-boot-spl.sfp u-boot.img FORCE
1378         $(call if_changed,socboot)
1379 endif
1380
1381 ifeq ($(CONFIG_MPC85xx)$(CONFIG_OF_SEPARATE),yy)
1382 u-boot-with-dtb.bin: u-boot.bin u-boot.dtb \
1383         $(if $(CONFIG_MPC85XX_HAVE_RESET_VECTOR), u-boot-br.bin) FORCE
1384         $(call if_changed,binman)
1385
1386 ifeq ($(CONFIG_MPC85XX_HAVE_RESET_VECTOR),y)
1387 OBJCOPYFLAGS_u-boot-br.bin := -O binary -j .bootpg -j .resetvec
1388 u-boot-br.bin: u-boot FORCE
1389         $(call if_changed,objcopy)
1390 endif
1391 endif
1392
1393 # x86 uses a large ROM. We fill it with 0xff, put the 16-bit stuff (including
1394 # reset vector) at the top, Intel ME descriptor at the bottom, and U-Boot in
1395 # the middle. This is handled by binman based on an image description in the
1396 # board's device tree.
1397 ifneq ($(CONFIG_X86_RESET_VECTOR),)
1398 rom: u-boot.rom FORCE
1399
1400 refcode.bin: $(srctree)/board/$(BOARDDIR)/refcode.bin FORCE
1401         $(call if_changed,copy)
1402
1403 quiet_cmd_ldr = LD      $@
1404 cmd_ldr = $(LD) $(LDFLAGS_$(@F)) \
1405                $(filter-out FORCE,$^) -o $@
1406
1407 u-boot.rom: u-boot-x86-16bit.bin u-boot.bin \
1408                 $(if $(CONFIG_SPL_X86_16BIT_INIT),spl/u-boot-spl.bin) \
1409                 $(if $(CONFIG_TPL_X86_16BIT_INIT),tpl/u-boot-tpl.bin) \
1410                 $(if $(CONFIG_HAVE_REFCODE),refcode.bin) FORCE
1411         $(call if_changed,binman)
1412
1413 OBJCOPYFLAGS_u-boot-x86-16bit.bin := -O binary -j .start16 -j .resetvec
1414 u-boot-x86-16bit.bin: u-boot FORCE
1415         $(call if_changed,objcopy)
1416 endif
1417
1418 ifneq ($(CONFIG_ARCH_SUNXI),)
1419 ifeq ($(CONFIG_ARM64),)
1420 u-boot-sunxi-with-spl.bin: spl/sunxi-spl.bin u-boot.img u-boot.dtb FORCE
1421         $(call if_changed,binman)
1422 else
1423 u-boot-sunxi-with-spl.bin: spl/sunxi-spl.bin u-boot.itb FORCE
1424         $(call if_changed,cat)
1425 endif
1426 endif
1427
1428 ifneq ($(CONFIG_TEGRA),)
1429 ifneq ($(CONFIG_BINMAN),)
1430 # Makes u-boot-dtb-tegra.bin u-boot-tegra.bin u-boot-nodtb-tegra.bin
1431 %-dtb-tegra.bin %-tegra.bin %-nodtb-tegra.bin: \
1432                 spl/%-spl %.bin FORCE
1433         $(call if_changed,binman)
1434 else
1435 OBJCOPYFLAGS_u-boot-nodtb-tegra.bin = -O binary --pad-to=$(CONFIG_SYS_TEXT_BASE)
1436 u-boot-nodtb-tegra.bin: spl/u-boot-spl u-boot-nodtb.bin FORCE
1437         $(call if_changed,pad_cat)
1438
1439 OBJCOPYFLAGS_u-boot-tegra.bin = -O binary --pad-to=$(CONFIG_SYS_TEXT_BASE)
1440 u-boot-tegra.bin: spl/u-boot-spl u-boot.bin FORCE
1441         $(call if_changed,pad_cat)
1442
1443 u-boot-dtb-tegra.bin: u-boot-tegra.bin FORCE
1444         $(call if_changed,copy)
1445 endif  # binman
1446 endif
1447
1448 OBJCOPYFLAGS_u-boot-app.efi := $(OBJCOPYFLAGS_EFI)
1449 u-boot-app.efi: u-boot FORCE
1450         $(call if_changed,zobjcopy)
1451
1452 u-boot.bin.o: u-boot.bin FORCE
1453         $(call if_changed,efipayload)
1454
1455 u-boot-payload.lds: $(LDSCRIPT_EFI) FORCE
1456         $(call if_changed_dep,cpp_lds)
1457
1458 # Rule to link the EFI payload which contains a stub and a U-Boot binary
1459 quiet_cmd_u-boot_payload ?= LD      $@
1460       cmd_u-boot_payload ?= $(LD) $(LDFLAGS_EFI_PAYLOAD) -o $@ \
1461       -T u-boot-payload.lds arch/x86/cpu/call32.o \
1462       lib/efi/efi.o lib/efi/efi_stub.o u-boot.bin.o \
1463       $(addprefix arch/$(ARCH)/lib/,$(EFISTUB))
1464
1465 u-boot-payload: u-boot.bin.o u-boot-payload.lds FORCE
1466         $(call if_changed,u-boot_payload)
1467
1468 OBJCOPYFLAGS_u-boot-payload.efi := $(OBJCOPYFLAGS_EFI)
1469 u-boot-payload.efi: u-boot-payload FORCE
1470         $(call if_changed,zobjcopy)
1471
1472 u-boot-img.bin: spl/u-boot-spl.bin u-boot.img FORCE
1473         $(call if_changed,cat)
1474
1475 #Add a target to create boot binary having SPL binary in PBI format
1476 #concatenated with u-boot binary. It is need by PowerPC SoC having
1477 #internal SRAM <= 512KB.
1478 MKIMAGEFLAGS_u-boot-spl.pbl = -n $(srctree)/$(CONFIG_SYS_FSL_PBL_RCW:"%"=%) \
1479                 -R $(srctree)/$(CONFIG_SYS_FSL_PBL_PBI:"%"=%) -T pblimage \
1480                 -A $(ARCH) -a $(CONFIG_SPL_TEXT_BASE)
1481
1482 spl/u-boot-spl.pbl: spl/u-boot-spl.bin FORCE
1483         $(call if_changed,mkimage)
1484
1485 ifeq ($(ARCH),arm)
1486 UBOOT_BINLOAD := u-boot.img
1487 else
1488 ifeq ($(CONFIG_MPC85xx)$(CONFIG_OF_SEPARATE),yy)
1489 UBOOT_BINLOAD := u-boot-with-dtb.bin
1490 else
1491 UBOOT_BINLOAD := u-boot.bin
1492 endif
1493 endif
1494
1495 OBJCOPYFLAGS_u-boot-with-spl-pbl.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) \
1496                           --gap-fill=0xff
1497
1498 u-boot-with-spl-pbl.bin: spl/u-boot-spl.pbl $(UBOOT_BINLOAD) FORCE
1499         $(call if_changed,pad_cat)
1500
1501 # PPC4xx needs the SPL at the end of the image, since the reset vector
1502 # is located at 0xfffffffc. So we can't use the "u-boot-img.bin" target
1503 # and need to introduce a new build target with the full blown U-Boot
1504 # at the start padded up to the start of the SPL image. And then concat
1505 # the SPL image to the end.
1506
1507 OBJCOPYFLAGS_u-boot-img-spl-at-end.bin := -I binary -O binary \
1508         --pad-to=$(CONFIG_UBOOT_PAD_TO) --gap-fill=0xff
1509 u-boot-img-spl-at-end.bin: u-boot.img spl/u-boot-spl.bin FORCE
1510         $(call if_changed,pad_cat)
1511
1512 # Create a new ELF from a raw binary file.
1513 ifndef PLATFORM_ELFENTRY
1514   PLATFORM_ELFENTRY = "_start"
1515 endif
1516 quiet_cmd_u-boot-elf ?= LD      $@
1517         cmd_u-boot-elf ?= $(LD) u-boot-elf.o -o $@ \
1518         --defsym=$(PLATFORM_ELFENTRY)=$(CONFIG_SYS_TEXT_BASE) \
1519         -Ttext=$(CONFIG_SYS_TEXT_BASE)
1520 u-boot.elf: u-boot.bin
1521         $(Q)$(OBJCOPY) -I binary $(PLATFORM_ELFFLAGS) $< u-boot-elf.o
1522         $(call if_changed,u-boot-elf)
1523
1524 # MediaTek's ARM-based u-boot needs a header to contains its load address
1525 # which is parsed by the BootROM.
1526 # If the SPL build is enabled, the header will be added to the spl binary,
1527 # and the spl binary and the u-boot.img will be combined into one file.
1528 # Otherwise the header will be added to the u-boot.bin directly.
1529
1530 ifeq ($(CONFIG_SPL),y)
1531 spl/u-boot-spl-mtk.bin: spl/u-boot-spl
1532
1533 u-boot-mtk.bin: u-boot.dtb u-boot.img spl/u-boot-spl-mtk.bin FORCE
1534         $(call if_changed,binman)
1535 else
1536 MKIMAGEFLAGS_u-boot-mtk.bin = -T mtk_image \
1537         -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE) \
1538         -n "$(patsubst "%",%,$(CONFIG_MTK_BROM_HEADER_INFO))"
1539
1540 u-boot-mtk.bin: u-boot.bin FORCE
1541         $(call if_changed,mkimage)
1542 endif
1543
1544 ARCH_POSTLINK := $(wildcard $(srctree)/arch/$(ARCH)/Makefile.postlink)
1545
1546 # Rule to link u-boot
1547 # May be overridden by arch/$(ARCH)/config.mk
1548 quiet_cmd_u-boot__ ?= LD      $@
1549       cmd_u-boot__ ?= $(LD) $(LDFLAGS) $(LDFLAGS_u-boot) -o $@ \
1550       -T u-boot.lds $(u-boot-init)                             \
1551       --start-group $(u-boot-main) --end-group                 \
1552       $(PLATFORM_LIBS) -Map u-boot.map;                        \
1553       $(if $(ARCH_POSTLINK), $(MAKE) -f $(ARCH_POSTLINK) $@, true)
1554
1555 quiet_cmd_smap = GEN     common/system_map.o
1556 cmd_smap = \
1557         smap=`$(call SYSTEM_MAP,u-boot) | \
1558                 awk '$$2 ~ /[tTwW]/ {printf $$1 $$3 "\\\\000"}'` ; \
1559         $(CC) $(c_flags) -DSYSTEM_MAP="\"$${smap}\"" \
1560                 -c $(srctree)/common/system_map.c -o common/system_map.o
1561
1562 u-boot: $(u-boot-init) $(u-boot-main) u-boot.lds FORCE
1563         +$(call if_changed,u-boot__)
1564 ifeq ($(CONFIG_KALLSYMS),y)
1565         $(call cmd,smap)
1566         $(call cmd,u-boot__) common/system_map.o
1567 endif
1568
1569 ifeq ($(CONFIG_RISCV),y)
1570         @tools/prelink-riscv $@ 0
1571 endif
1572
1573 quiet_cmd_sym ?= SYM     $@
1574       cmd_sym ?= $(OBJDUMP) -t $< > $@
1575 u-boot.sym: u-boot FORCE
1576         $(call if_changed,sym)
1577
1578 # The actual objects are generated when descending,
1579 # make sure no implicit rule kicks in
1580 $(sort $(u-boot-init) $(u-boot-main)): $(u-boot-dirs) ;
1581
1582 # Handle descending into subdirectories listed in $(vmlinux-dirs)
1583 # Preset locale variables to speed up the build process. Limit locale
1584 # tweaks to this spot to avoid wrong language settings when running
1585 # make menuconfig etc.
1586 # Error messages still appears in the original language
1587
1588 PHONY += $(u-boot-dirs)
1589 $(u-boot-dirs): prepare scripts
1590         $(Q)$(MAKE) $(build)=$@
1591
1592 tools: prepare
1593 # The "tools" are needed early
1594 $(filter-out tools, $(u-boot-dirs)): tools
1595 # The "examples" conditionally depend on U-Boot (say, when USE_PRIVATE_LIBGCC
1596 # is "yes"), so compile examples after U-Boot is compiled.
1597 examples: $(filter-out examples, $(u-boot-dirs))
1598
1599 define filechk_uboot.release
1600         echo "$(UBOOTVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))"
1601 endef
1602
1603 # Store (new) UBOOTRELEASE string in include/config/uboot.release
1604 include/config/uboot.release: include/config/auto.conf FORCE
1605         $(call filechk,uboot.release)
1606
1607
1608 # Things we need to do before we recursively start building the kernel
1609 # or the modules are listed in "prepare".
1610 # A multi level approach is used. prepareN is processed before prepareN-1.
1611 # archprepare is used in arch Makefiles and when processed asm symlink,
1612 # version.h and scripts_basic is processed / created.
1613
1614 # Listed in dependency order
1615 PHONY += prepare archprepare prepare0 prepare1 prepare2 prepare3
1616
1617 # prepare3 is used to check if we are building in a separate output directory,
1618 # and if so do:
1619 # 1) Check that make has not been executed in the kernel src $(srctree)
1620 prepare3: include/config/uboot.release
1621 ifneq ($(KBUILD_SRC),)
1622         @$(kecho) '  Using $(srctree) as source for U-Boot'
1623         $(Q)if [ -f $(srctree)/.config -o -d $(srctree)/include/config ]; then \
1624                 echo >&2 "  $(srctree) is not clean, please run 'make mrproper'"; \
1625                 echo >&2 "  in the '$(srctree)' directory.";\
1626                 /bin/false; \
1627         fi;
1628 endif
1629
1630 # prepare2 creates a makefile if using a separate output directory
1631 prepare2: prepare3 outputmakefile cfg
1632
1633 prepare1: prepare2 $(version_h) $(timestamp_h) \
1634                    include/config/auto.conf
1635 ifeq ($(wildcard $(LDSCRIPT)),)
1636         @echo >&2 "  Could not find linker script."
1637         @/bin/false
1638 endif
1639
1640 ifeq ($(CONFIG_USE_DEFAULT_ENV_FILE),y)
1641 prepare1: $(defaultenv_h)
1642 endif
1643
1644 archprepare: prepare1 scripts_basic
1645
1646 prepare0: archprepare FORCE
1647         $(Q)$(MAKE) $(build)=.
1648
1649 # All the preparing..
1650 prepare: prepare0
1651
1652 # Generate some files
1653 # ---------------------------------------------------------------------------
1654
1655 define filechk_version.h
1656         (echo \#define PLAIN_VERSION \"$(UBOOTRELEASE)\"; \
1657         echo \#define U_BOOT_VERSION \"U-Boot \" PLAIN_VERSION; \
1658         echo \#define CC_VERSION_STRING \"$$(LC_ALL=C $(CC) --version | head -n 1)\"; \
1659         echo \#define LD_VERSION_STRING \"$$(LC_ALL=C $(LD) --version | head -n 1)\"; )
1660 endef
1661
1662 # The SOURCE_DATE_EPOCH mechanism requires a date that behaves like GNU date.
1663 # The BSD date on the other hand behaves different and would produce errors
1664 # with the misused '-d' switch.  Respect that and search a working date with
1665 # well known pre- and suffixes for the GNU variant of date.
1666 define filechk_timestamp.h
1667         (if test -n "$${SOURCE_DATE_EPOCH}"; then \
1668                 SOURCE_DATE="@$${SOURCE_DATE_EPOCH}"; \
1669                 DATE=""; \
1670                 for date in gdate date.gnu date; do \
1671                         $${date} -u -d "$${SOURCE_DATE}" >/dev/null 2>&1 && DATE="$${date}"; \
1672                 done; \
1673                 if test -n "$${DATE}"; then \
1674                         LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_DATE "%b %d %C%y"'; \
1675                         LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_TIME "%T"'; \
1676                         LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_TZ "%z"'; \
1677                         LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_DMI_DATE "%m/%d/%Y"'; \
1678                         LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_BUILD_DATE 0x%Y%m%d'; \
1679                 else \
1680                         return 42; \
1681                 fi; \
1682         else \
1683                 LC_ALL=C date +'#define U_BOOT_DATE "%b %d %C%y"'; \
1684                 LC_ALL=C date +'#define U_BOOT_TIME "%T"'; \
1685                 LC_ALL=C date +'#define U_BOOT_TZ "%z"'; \
1686                 LC_ALL=C date +'#define U_BOOT_DMI_DATE "%m/%d/%Y"'; \
1687                 LC_ALL=C date +'#define U_BOOT_BUILD_DATE 0x%Y%m%d'; \
1688         fi)
1689 endef
1690
1691 define filechk_defaultenv.h
1692         (grep -v '^#' | \
1693          grep -v '^$$' | \
1694          tr '\n' '\0' | \
1695          sed -e 's/\\\x0/\n/' | \
1696          xxd -i ; echo ", 0x00" ; )
1697 endef
1698
1699 $(version_h): include/config/uboot.release FORCE
1700         $(call filechk,version.h)
1701
1702 $(timestamp_h): $(srctree)/Makefile FORCE
1703         $(call filechk,timestamp.h)
1704
1705 $(defaultenv_h): $(CONFIG_DEFAULT_ENV_FILE:"%"=%) FORCE
1706         $(call filechk,defaultenv.h)
1707
1708 # ---------------------------------------------------------------------------
1709 quiet_cmd_cpp_lds = LDS     $@
1710 cmd_cpp_lds = $(CPP) -Wp,-MD,$(depfile) $(cpp_flags) $(LDPPFLAGS) \
1711                 -D__ASSEMBLY__ -x assembler-with-cpp -std=c99 -P -o $@ $<
1712
1713 u-boot.lds: $(LDSCRIPT) prepare FORCE
1714         $(call if_changed_dep,cpp_lds)
1715
1716 spl/u-boot-spl.bin: spl/u-boot-spl
1717         @:
1718         $(SPL_SIZE_CHECK)
1719
1720 spl/u-boot-spl: tools prepare \
1721                 $(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_SPL_OF_PLATDATA),dts/dt.dtb) \
1722                 $(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_TPL_OF_PLATDATA),dts/dt.dtb)
1723         $(Q)$(MAKE) obj=spl -f $(srctree)/scripts/Makefile.spl all
1724
1725 spl/sunxi-spl.bin: spl/u-boot-spl
1726         @:
1727
1728 spl/sunxi-spl-with-ecc.bin: spl/sunxi-spl.bin
1729         @:
1730
1731 spl/u-boot-spl.sfp: spl/u-boot-spl
1732         @:
1733
1734 spl/boot.bin: spl/u-boot-spl
1735         @:
1736
1737 tpl/u-boot-tpl.bin: tools prepare \
1738                 $(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_SPL_OF_PLATDATA),dts/dt.dtb)
1739         $(Q)$(MAKE) obj=tpl -f $(srctree)/scripts/Makefile.spl all
1740
1741 TAG_SUBDIRS := $(patsubst %,$(srctree)/%,$(u-boot-dirs) include)
1742
1743 FIND := find
1744 FINDFLAGS := -L
1745
1746 tags ctags:
1747                 ctags -w -o ctags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \
1748                                                 -name '*.[chS]' -print`
1749                 ln -s ctags tags
1750
1751 etags:
1752                 etags -a -o etags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \
1753                                                 -name '*.[chS]' -print`
1754 cscope:
1755                 $(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) -name '*.[chS]' -print > \
1756                                                 cscope.files
1757                 cscope -b -q -k
1758
1759 SYSTEM_MAP = \
1760                 $(NM) $1 | \
1761                 grep -v '\(compiled\)\|\(\.o$$\)\|\( [aUw] \)\|\(\.\.ng$$\)\|\(LASH[RL]DI\)' | \
1762                 LC_ALL=C sort
1763 System.map:     u-boot
1764                 @$(call SYSTEM_MAP,$<) > $@
1765
1766 #########################################################################
1767
1768 # ARM relocations should all be R_ARM_RELATIVE (32-bit) or
1769 # R_AARCH64_RELATIVE (64-bit).
1770 checkarmreloc: u-boot
1771         @RELOC="`$(CROSS_COMPILE)readelf -r -W $< | cut -d ' ' -f 4 | \
1772                 grep R_A | sort -u`"; \
1773         if test "$$RELOC" != "R_ARM_RELATIVE" -a \
1774                  "$$RELOC" != "R_AARCH64_RELATIVE"; then \
1775                 echo "$< contains unexpected relocations: $$RELOC"; \
1776                 false; \
1777         fi
1778
1779 envtools: scripts_basic $(version_h) $(timestamp_h)
1780         $(Q)$(MAKE) $(build)=tools/env
1781
1782 tools-only: export TOOLS_ONLY=y
1783 tools-only: scripts_basic $(version_h) $(timestamp_h)
1784         $(Q)$(MAKE) $(build)=tools
1785
1786 tools-all: export HOST_TOOLS_ALL=y
1787 tools-all: envtools tools ;
1788
1789 cross_tools: export CROSS_BUILD_TOOLS=y
1790 cross_tools: tools ;
1791
1792 .PHONY : CHANGELOG
1793 CHANGELOG:
1794         git log --no-merges U-Boot-1_1_5.. | \
1795         unexpand -a | sed -e 's/\s\s*$$//' > $@
1796
1797 #########################################################################
1798
1799 ###
1800 # Cleaning is done on three levels.
1801 # make clean     Delete most generated files
1802 #                Leave enough to build external modules
1803 # make mrproper  Delete the current configuration, and all generated files
1804 # make distclean Remove editor backup files, patch leftover files and the like
1805
1806 # Directories & files removed with 'make clean'
1807 CLEAN_DIRS  += $(MODVERDIR) \
1808                $(foreach d, spl tpl, $(patsubst %,$d/%, \
1809                         $(filter-out include, $(shell ls -1 $d 2>/dev/null))))
1810
1811 CLEAN_FILES += include/bmp_logo.h include/bmp_logo_data.h \
1812                boot* u-boot* MLO* SPL System.map fit-dtb.blob*
1813
1814 # Directories & files removed with 'make mrproper'
1815 MRPROPER_DIRS  += include/config include/generated spl tpl \
1816                   .tmp_objdiff
1817 MRPROPER_FILES += .config .config.old include/autoconf.mk* include/config.h \
1818                   ctags etags tags TAGS cscope* GPATH GTAGS GRTAGS GSYMS \
1819                   drivers/video/fonts/*.S
1820
1821 # clean - Delete most, but leave enough to build external modules
1822 #
1823 clean: rm-dirs  := $(CLEAN_DIRS)
1824 clean: rm-files := $(CLEAN_FILES)
1825
1826 clean-dirs      := $(foreach f,$(u-boot-alldirs),$(if $(wildcard $(srctree)/$f/Makefile),$f))
1827
1828 clean-dirs      := $(addprefix _clean_, $(clean-dirs))
1829
1830 PHONY += $(clean-dirs) clean archclean
1831 $(clean-dirs):
1832         $(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$@)
1833
1834 clean: $(clean-dirs)
1835         $(call cmd,rmdirs)
1836         $(call cmd,rmfiles)
1837         @find $(if $(KBUILD_EXTMOD), $(KBUILD_EXTMOD), .) $(RCS_FIND_IGNORE) \
1838                 \( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \
1839                 -o -name '*.ko.*' -o -name '*.su' \
1840                 -o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \
1841                 -o -name '*.lex.c' -o -name '*.tab.[ch]' \
1842                 -o -name '*.symtypes' -o -name 'modules.order' \
1843                 -o -name modules.builtin -o -name '.tmp_*.o.*' \
1844                 -o -name 'dsdt.aml' -o -name 'dsdt.asl.tmp' -o -name 'dsdt.c' \
1845                 -o -name '*.efi' -o -name '*.gcno' -o -name '*.so' \) \
1846                 -type f -print | xargs rm -f
1847
1848 # mrproper - Delete all generated files, including .config
1849 #
1850 mrproper: rm-dirs  := $(wildcard $(MRPROPER_DIRS))
1851 mrproper: rm-files := $(wildcard $(MRPROPER_FILES))
1852 mrproper-dirs      := $(addprefix _mrproper_,scripts)
1853
1854 PHONY += $(mrproper-dirs) mrproper archmrproper
1855 $(mrproper-dirs):
1856         $(Q)$(MAKE) $(clean)=$(patsubst _mrproper_%,%,$@)
1857
1858 mrproper: clean $(mrproper-dirs)
1859         $(call cmd,rmdirs)
1860         $(call cmd,rmfiles)
1861         @rm -f arch/*/include/asm/arch
1862
1863 # distclean
1864 #
1865 PHONY += distclean
1866
1867 distclean: mrproper
1868         @find $(srctree) $(RCS_FIND_IGNORE) \
1869                 \( -name '*.orig' -o -name '*.rej' -o -name '*~' \
1870                 -o -name '*.bak' -o -name '#*#' -o -name '.*.orig' \
1871                 -o -name '.*.rej' -o -name '*%' -o -name 'core' \
1872                 -o -name '*.pyc' \) \
1873                 -type f -print | xargs rm -f
1874         @rm -f boards.cfg CHANGELOG
1875
1876 backup:
1877         F=`basename $(srctree)` ; cd .. ; \
1878         gtar --force-local -zcvf `LC_ALL=C date "+$$F-%Y-%m-%d-%T.tar.gz"` $$F
1879
1880 help:
1881         @echo  'Cleaning targets:'
1882         @echo  '  clean           - Remove most generated files but keep the config'
1883         @echo  '  mrproper        - Remove all generated files + config + various backup files'
1884         @echo  '  distclean       - mrproper + remove editor backup and patch files'
1885         @echo  ''
1886         @echo  'Configuration targets:'
1887         @$(MAKE) -f $(srctree)/scripts/kconfig/Makefile help
1888         @echo  ''
1889         @echo  'Test targets:'
1890         @echo  ''
1891         @echo  '  check           - Run all automated tests that use sandbox'
1892         @echo  '  qcheck          - Run quick automated tests that use sandbox'
1893         @echo  ''
1894         @echo  'Other generic targets:'
1895         @echo  '  all             - Build all necessary images depending on configuration'
1896         @echo  '  tests           - Build U-Boot for sandbox and run tests'
1897         @echo  '* u-boot          - Build the bare u-boot'
1898         @echo  '  dir/            - Build all files in dir and below'
1899         @echo  '  dir/file.[oisS] - Build specified target only'
1900         @echo  '  dir/file.lst    - Build specified mixed source/assembly target only'
1901         @echo  '                    (requires a recent binutils and recent build (System.map))'
1902         @echo  '  tags/ctags      - Generate ctags file for editors'
1903         @echo  '  etags           - Generate etags file for editors'
1904         @echo  '  cscope          - Generate cscope index'
1905         @echo  '  ubootrelease    - Output the release version string (use with make -s)'
1906         @echo  '  ubootversion    - Output the version stored in Makefile (use with make -s)'
1907         @echo  "  cfg             - Don't build, just create the .cfg files"
1908         @echo  "  envtools        - Build only the target-side environment tools"
1909         @echo  ''
1910         @echo  'Static analysers'
1911         @echo  '  checkstack      - Generate a list of stack hogs'
1912         @echo  '  coccicheck      - Execute static code analysis with Coccinelle'
1913         @echo  ''
1914         @echo  'Documentation targets:'
1915         @$(MAKE) -f $(srctree)/Documentation/Makefile dochelp
1916         @echo  ''
1917         @echo  '  make V=0|1 [targets] 0 => quiet build (default), 1 => verbose build'
1918         @echo  '  make V=2   [targets] 2 => give reason for rebuild of target'
1919         @echo  '  make O=dir [targets] Locate all output files in "dir", including .config'
1920         @echo  '  make C=1   [targets] Check all c source with $$CHECK (sparse by default)'
1921         @echo  '  make C=2   [targets] Force check of all c source with $$CHECK'
1922         @echo  '  make RECORDMCOUNT_WARN=1 [targets] Warn about ignored mcount sections'
1923         @echo  '  make W=n   [targets] Enable extra gcc checks, n=1,2,3 where'
1924         @echo  '                1: warnings which may be relevant and do not occur too often'
1925         @echo  '                2: warnings which occur quite often but may still be relevant'
1926         @echo  '                3: more obscure warnings, can most likely be ignored'
1927         @echo  '                Multiple levels can be combined with W=12 or W=123'
1928         @echo  ''
1929         @echo  'Execute "make" or "make all" to build all targets marked with [*] '
1930         @echo  'For further info see the ./README file'
1931
1932 tests check:
1933         $(srctree)/test/run
1934
1935 qcheck:
1936         $(srctree)/test/run quick
1937
1938 # Documentation targets
1939 # ---------------------------------------------------------------------------
1940 DOC_TARGETS := xmldocs latexdocs pdfdocs htmldocs epubdocs cleandocs \
1941                linkcheckdocs dochelp refcheckdocs
1942 PHONY += $(DOC_TARGETS)
1943 $(DOC_TARGETS): scripts_basic FORCE
1944         $(Q)$(MAKE) $(build)=Documentation $@
1945
1946 endif #ifeq ($(config-targets),1)
1947 endif #ifeq ($(mixed-targets),1)
1948
1949 PHONY += checkstack ubootrelease ubootversion
1950
1951 checkstack:
1952         $(OBJDUMP) -d u-boot $$(find . -name u-boot-spl) | \
1953         $(PERL) $(src)/scripts/checkstack.pl $(ARCH)
1954
1955 ubootrelease:
1956         @echo "$(UBOOTVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))"
1957
1958 ubootversion:
1959         @echo $(UBOOTVERSION)
1960
1961 # Single targets
1962 # ---------------------------------------------------------------------------
1963 # Single targets are compatible with:
1964 # - build with mixed source and output
1965 # - build with separate output dir 'make O=...'
1966 # - external modules
1967 #
1968 #  target-dir => where to store outputfile
1969 #  build-dir  => directory in kernel source tree to use
1970
1971 ifeq ($(KBUILD_EXTMOD),)
1972         build-dir  = $(patsubst %/,%,$(dir $@))
1973         target-dir = $(dir $@)
1974 else
1975         zap-slash=$(filter-out .,$(patsubst %/,%,$(dir $@)))
1976         build-dir  = $(KBUILD_EXTMOD)$(if $(zap-slash),/$(zap-slash))
1977         target-dir = $(if $(KBUILD_EXTMOD),$(dir $<),$(dir $@))
1978 endif
1979
1980 %.s: %.c prepare scripts FORCE
1981         $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1982 %.i: %.c prepare scripts FORCE
1983         $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1984 %.o: %.c prepare scripts FORCE
1985         $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1986 %.lst: %.c prepare scripts FORCE
1987         $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1988 %.s: %.S prepare scripts FORCE
1989         $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1990 %.o: %.S prepare scripts FORCE
1991         $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1992 %.symtypes: %.c prepare scripts FORCE
1993         $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1994
1995 # Modules
1996 /: prepare scripts FORCE
1997         $(cmd_crmodverdir)
1998         $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \
1999         $(build)=$(build-dir)
2000 %/: prepare scripts FORCE
2001         $(cmd_crmodverdir)
2002         $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \
2003         $(build)=$(build-dir)
2004 %.ko: prepare scripts FORCE
2005         $(cmd_crmodverdir)
2006         $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1)   \
2007         $(build)=$(build-dir) $(@:.ko=.o)
2008         $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost
2009
2010 quiet_cmd_genenv = GENENV $@
2011 cmd_genenv = $(OBJCOPY) --dump-section .rodata.default_environment=$@ env/common.o; \
2012         sed --in-place -e 's/\x00/\x0A/g' $@
2013
2014 u-boot-initial-env: u-boot.bin
2015         $(call if_changed,genenv)
2016
2017 # Consistency checks
2018 # ---------------------------------------------------------------------------
2019
2020 PHONY += coccicheck
2021
2022 coccicheck:
2023         $(Q)$(CONFIG_SHELL) $(srctree)/scripts/$@
2024
2025 # FIXME Should go into a make.lib or something
2026 # ===========================================================================
2027
2028 quiet_cmd_rmdirs = $(if $(wildcard $(rm-dirs)),CLEAN   $(wildcard $(rm-dirs)))
2029       cmd_rmdirs = rm -rf $(rm-dirs)
2030
2031 quiet_cmd_rmfiles = $(if $(wildcard $(rm-files)),CLEAN   $(wildcard $(rm-files)))
2032       cmd_rmfiles = rm -f $(rm-files)
2033
2034 # read all saved command lines
2035
2036 targets := $(wildcard $(sort $(targets)))
2037 cmd_files := $(wildcard .*.cmd $(foreach f,$(targets),$(dir $(f)).$(notdir $(f)).cmd))
2038
2039 ifneq ($(cmd_files),)
2040   $(cmd_files): ;       # Do not try to update included dependency files
2041   include $(cmd_files)
2042 endif
2043
2044 endif   # skip-makefile
2045
2046 PHONY += FORCE
2047 FORCE:
2048
2049 # Declare the contents of the .PHONY variable as phony.  We keep that
2050 # information in a variable so we can use it in if_changed and friends.
2051 .PHONY: $(PHONY)