Makefile

   1 # SPDX-License-Identifier: GPL-2.0+
   2
   3 VERSION = 2019
   4 PATCHLEVEL = 07
   5 SUBLEVEL =
   6 EXTRAVERSION = -rc3
   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= @ $(call size_check,$@,$(CONFIG_BOARD_SIZE_LIMIT))
 795 else
 796 BOARD_SIZE_CHECK =
 797 endif
 798
 799 # Statically apply RELA-style relocations (currently arm64 only)
 800 # This is useful for arm64 where static relocation needs to be performed on
 801 # the raw binary, but certain simulators only accept an ELF file (but don't
 802 # do the relocation).
 803 ifneq ($(CONFIG_STATIC_RELA),)
 804 # $(1) is u-boot ELF, $(2) is u-boot bin, $(3) is text base
 805 DO_STATIC_RELA = \
 806         start=$$($(NM) $(1) | grep __rel_dyn_start | cut -f 1 -d ' '); \
 807         end=$$($(NM) $(1) | grep __rel_dyn_end | cut -f 1 -d ' '); \
 808         tools/relocate-rela $(2) $(3) $$start $$end
 809 else
 810 DO_STATIC_RELA =
 811 endif
 812
 813 # Always append ALL so that arch config.mk's can add custom ones
 814 ALL-y += u-boot.srec u-boot.bin u-boot.sym System.map binary_size_check
 815
 816 ALL-$(CONFIG_ONENAND_U_BOOT) += u-boot-onenand.bin
 817 ifeq ($(CONFIG_SPL_FSL_PBL),y)
 818 ALL-$(CONFIG_RAMBOOT_PBL) += u-boot-with-spl-pbl.bin
 819 else
 820 ifneq ($(CONFIG_SECURE_BOOT), y)
 821 # For Secure Boot The Image needs to be signed and Header must also
 822 # be included. So The image has to be built explicitly
 823 ALL-$(CONFIG_RAMBOOT_PBL) += u-boot.pbl
 824 endif
 825 endif
 826 ALL-$(CONFIG_SPL) += spl/u-boot-spl.bin
 827 ifeq ($(CONFIG_MX6)$(CONFIG_SECURE_BOOT), yy)
 828 ALL-$(CONFIG_SPL_FRAMEWORK) += u-boot-ivt.img
 829 else
 830 ifeq ($(CONFIG_MX7)$(CONFIG_SECURE_BOOT), yy)
 831 ALL-$(CONFIG_SPL_FRAMEWORK) += u-boot-ivt.img
 832 else
 833 ALL-$(CONFIG_SPL_FRAMEWORK) += u-boot.img
 834 endif
 835 endif
 836 ALL-$(CONFIG_TPL) += tpl/u-boot-tpl.bin
 837 ALL-$(CONFIG_OF_SEPARATE) += u-boot.dtb
 838 ifeq ($(CONFIG_SPL_FRAMEWORK),y)
 839 ALL-$(CONFIG_OF_SEPARATE) += u-boot-dtb.img
 840 endif
 841 ALL-$(CONFIG_OF_HOSTFILE) += u-boot.dtb
 842 ifneq ($(CONFIG_SPL_TARGET),)
 843 ALL-$(CONFIG_SPL) += $(CONFIG_SPL_TARGET:"%"=%)
 844 endif
 845 ALL-$(CONFIG_REMAKE_ELF) += u-boot.elf
 846 ALL-$(CONFIG_EFI_APP) += u-boot-app.efi
 847 ALL-$(CONFIG_EFI_STUB) += u-boot-payload.efi
 848
 849 ifneq ($(BUILD_ROM)$(CONFIG_BUILD_ROM),)
 850 ALL-$(CONFIG_X86_RESET_VECTOR) += u-boot.rom
 851 endif
 852
 853 # Build a combined spl + u-boot image for sunxi
 854 ifeq ($(CONFIG_ARCH_SUNXI)$(CONFIG_SPL),yy)
 855 ALL-y += u-boot-sunxi-with-spl.bin
 856 endif
 857
 858 # enable combined SPL/u-boot/dtb rules for tegra
 859 ifeq ($(CONFIG_TEGRA)$(CONFIG_SPL),yy)
 860 ALL-y += u-boot-tegra.bin u-boot-nodtb-tegra.bin
 861 ALL-$(CONFIG_OF_SEPARATE) += u-boot-dtb-tegra.bin
 862 endif
 863
 864 ALL-$(CONFIG_ARCH_MEDIATEK) += u-boot-mtk.bin
 865
 866 # Add optional build target if defined in board/cpu/soc headers
 867 ifneq ($(CONFIG_BUILD_TARGET),)
 868 ALL-y += $(CONFIG_BUILD_TARGET:"%"=%)
 869 endif
 870
 871 ifneq ($(CONFIG_SYS_INIT_SP_BSS_OFFSET),)
 872 ALL-y += init_sp_bss_offset_check
 873 endif
 874
 875 ifeq ($(CONFIG_MPC85xx)$(CONFIG_OF_SEPARATE),yy)
 876 ALL-y += u-boot-with-dtb.bin
 877 endif
 878
 879 LDFLAGS_u-boot += $(LDFLAGS_FINAL)
 880
 881 # Avoid 'Not enough room for program headers' error on binutils 2.28 onwards.
 882 LDFLAGS_u-boot += $(call ld-option, --no-dynamic-linker)
 883
 884 ifeq ($(CONFIG_ARC)$(CONFIG_NIOS2)$(CONFIG_X86)$(CONFIG_XTENSA),)
 885 LDFLAGS_u-boot += -Ttext $(CONFIG_SYS_TEXT_BASE)
 886 endif
 887
 888 # Normally we fill empty space with 0xff
 889 quiet_cmd_objcopy = OBJCOPY $@
 890 cmd_objcopy = $(OBJCOPY) --gap-fill=0xff $(OBJCOPYFLAGS) \
 891         $(OBJCOPYFLAGS_$(@F)) $< $@
 892
 893 # Provide a version which does not do this, for use by EFI
 894 quiet_cmd_zobjcopy = OBJCOPY $@
 895 cmd_zobjcopy = $(OBJCOPY) $(OBJCOPYFLAGS) $(OBJCOPYFLAGS_$(@F)) $< $@
 896
 897 quiet_cmd_efipayload = OBJCOPY $@
 898 cmd_efipayload = $(OBJCOPY) -I binary -O $(EFIPAYLOAD_BFDTARGET) -B $(EFIPAYLOAD_BFDARCH) $< $@
 899
 900 MKIMAGEOUTPUT ?= /dev/null
 901
 902 quiet_cmd_mkimage = MKIMAGE $@
 903 cmd_mkimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -d $< $@ \
 904         >$(MKIMAGEOUTPUT) $(if $(KBUILD_VERBOSE:0=), && cat $(MKIMAGEOUTPUT))
 905
 906 quiet_cmd_mkfitimage = MKIMAGE $@
 907 cmd_mkfitimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -f $(U_BOOT_ITS) -p $(CONFIG_FIT_EXTERNAL_OFFSET) $@\
 908         >$(MKIMAGEOUTPUT) $(if $(KBUILD_VERBOSE:0=), && cat $(MKIMAGEOUTPUT))
 909
 910 quiet_cmd_cat = CAT     $@
 911 cmd_cat = cat $(filter-out $(PHONY), $^) > $@
 912
 913 append = cat $(filter-out $< $(PHONY), $^) >> $@
 914
 915 quiet_cmd_pad_cat = CAT     $@
 916 cmd_pad_cat = $(cmd_objcopy) && $(append) || rm -f $@
 917
 918 cfg: u-boot.cfg
 919
 920 quiet_cmd_cfgcheck = CFGCHK  $2
 921 cmd_cfgcheck = $(srctree)/scripts/check-config.sh $2 \
 922                 $(srctree)/scripts/config_whitelist.txt $(srctree)
 923
 924 all:            $(ALL-y)
 925 ifeq ($(CONFIG_DM_I2C_COMPAT)$(CONFIG_SANDBOX),y)
 926         @echo >&2 "===================== WARNING ======================"
 927         @echo >&2 "This board uses CONFIG_DM_I2C_COMPAT. Please remove"
 928         @echo >&2 "(possibly in a subsequent patch in your series)"
 929         @echo >&2 "before sending patches to the mailing list."
 930         @echo >&2 "===================================================="
 931 endif
 932 ifeq ($(CONFIG_MMC),y)
 933 ifneq ($(CONFIG_DM_MMC)$(CONFIG_OF_CONTROL)$(CONFIG_BLK),yyy)
 934         @echo >&2 "===================== WARNING ======================"
 935         @echo >&2 "This board does not use CONFIG_DM_MMC. Please update"
 936         @echo >&2 "the board to use CONFIG_DM_MMC before the v2019.04 release."
 937         @echo >&2 "Failure to update by the deadline may result in board removal."
 938         @echo >&2 "See doc/driver-model/MIGRATION.txt for more info."
 939         @echo >&2 "===================================================="
 940 endif
 941 endif
 942 ifeq ($(CONFIG_USB),y)
 943 ifneq ($(CONFIG_DM_USB)$(CONFIG_OF_CONTROL)$(CONFIG_BLK),yyy)
 944         @echo >&2 "===================== WARNING ======================"
 945         @echo >&2 "This board does not use CONFIG_DM_USB. Please update"
 946         @echo >&2 "the board to use CONFIG_DM_USB before the v2019.07 release."
 947         @echo >&2 "Failure to update by the deadline may result in board removal."
 948         @echo >&2 "See doc/driver-model/MIGRATION.txt for more info."
 949         @echo >&2 "===================================================="
 950 endif
 951 endif
 952 ifeq ($(CONFIG_MVSATA_IDE),y)
 953         @echo >&2 "===================== WARNING ======================"
 954         @echo >&2 "This board does use CONFIG_MVSATA_IDE which is not"
 955         @echo >&2 "ported to driver-model (DM) yet. Please update the storage"
 956         @echo >&2 "controller driver to use CONFIG_AHCI before the v2019.07"
 957         @echo >&2 "release."
 958         @echo >&2 "Failure to update by the deadline may result in board removal."
 959         @echo >&2 "See doc/driver-model/MIGRATION.txt for more info."
 960         @echo >&2 "===================================================="
 961 endif
 962 ifeq ($(CONFIG_LIBATA),y)
 963 ifneq ($(CONFIG_AHCI),y)
 964         @echo >&2 "===================== WARNING ======================"
 965         @echo >&2 "This board does use CONFIG_LIBATA but has CONFIG_AHCI not"
 966         @echo >&2 "enabled. Please update the storage controller driver to use"
 967         @echo >&2 "CONFIG_AHCI before the v2019.07 release."
 968         @echo >&2 "Failure to update by the deadline may result in board removal."
 969         @echo >&2 "See doc/driver-model/MIGRATION.txt for more info."
 970         @echo >&2 "===================================================="
 971 endif
 972 endif
 973 ifeq ($(CONFIG_PCI),y)
 974 ifneq ($(CONFIG_DM_PCI),y)
 975         @echo >&2 "===================== WARNING ======================"
 976         @echo >&2 "This board does not use CONFIG_DM_PCI Please update"
 977         @echo >&2 "the board to use CONFIG_DM_PCI before the v2019.07 release."
 978         @echo >&2 "Failure to update by the deadline may result in board removal."
 979         @echo >&2 "See doc/driver-model/MIGRATION.txt for more info."
 980         @echo >&2 "===================================================="
 981 endif
 982 endif
 983 ifneq ($(CONFIG_LCD)$(CONFIG_VIDEO),)
 984 ifneq ($(CONFIG_DM_VIDEO),y)
 985         @echo >&2 "===================== WARNING ======================"
 986         @echo >&2 "This board does not use CONFIG_DM_VIDEO Please update"
 987         @echo >&2 "the board to use CONFIG_DM_VIDEO before the v2019.07 release."
 988         @echo >&2 "Failure to update by the deadline may result in board removal."
 989         @echo >&2 "See doc/driver-model/MIGRATION.txt for more info."
 990         @echo >&2 "===================================================="
 991 endif
 992 endif
 993 ifeq ($(CONFIG_OF_EMBED),y)
 994         @echo >&2 "===================== WARNING ======================"
 995         @echo >&2 "CONFIG_OF_EMBED is enabled. This option should only"
 996         @echo >&2 "be used for debugging purposes. Please use"
 997         @echo >&2 "CONFIG_OF_SEPARATE for boards in mainline."
 998         @echo >&2 "See doc/README.fdt-control for more info."
 999         @echo >&2 "===================================================="
1000 endif
1001 ifeq ($(CONFIG_SPI),y)
1002 ifneq ($(CONFIG_DM_SPI)$(CONFIG_OF_CONTROL),yy)
1003         @echo >&2 "===================== WARNING ======================"
1004         @echo >&2 "This board does not use CONFIG_DM_SPI. Please update"
1005         @echo >&2 "the board before v2019.04 for no dm conversion"
1006         @echo >&2 "and v2019.07 for partially dm converted drivers."
1007         @echo >&2 "Failure to update can lead to driver/board removal"
1008         @echo >&2 "See doc/driver-model/MIGRATION.txt for more info."
1009         @echo >&2 "===================================================="
1010 endif
1011 endif
1012 ifeq ($(CONFIG_SPI_FLASH),y)
1013 ifneq ($(CONFIG_DM_SPI_FLASH)$(CONFIG_OF_CONTROL),yy)
1014         @echo >&2 "===================== WARNING ======================"
1015         @echo >&2 "This board does not use CONFIG_DM_SPI_FLASH. Please update"
1016         @echo >&2 "the board to use CONFIG_SPI_FLASH before the v2019.07 release."
1017         @echo >&2 "Failure to update by the deadline may result in board removal."
1018         @echo >&2 "See doc/driver-model/MIGRATION.txt for more info."
1019         @echo >&2 "===================================================="
1020 endif
1021 endif
1022 ifneq ($(CONFIG_WATCHDOG)$(CONFIG_HW_WATCHDOG),)
1023 ifneq ($(CONFIG_WDT),y)
1024         @echo >&2 "===================== WARNING ======================"
1025         @echo >&2 "This board does not use CONFIG_WDT (DM watchdog support)."
1026         @echo >&2 "Please update the board to use CONFIG_WDT before the"
1027         @echo >&2 "v2019.10 release."
1028         @echo >&2 "Failure to update by the deadline may result in board removal."
1029         @echo >&2 "See doc/driver-model/MIGRATION.txt for more info."
1030         @echo >&2 "===================================================="
1031 endif
1032 endif
1033         @# Check that this build does not use CONFIG options that we do not
1034         @# know about unless they are in Kconfig. All the existing CONFIG
1035         @# options are whitelisted, so new ones should not be added.
1036         $(call cmd,cfgcheck,u-boot.cfg)
1037
1038 PHONY += dtbs
1039 dtbs: dts/dt.dtb
1040         @:
1041 dts/dt.dtb: u-boot
1042         $(Q)$(MAKE) $(build)=dts dtbs
1043
1044 quiet_cmd_copy = COPY    $@
1045       cmd_copy = cp $< $@
1046
1047 ifeq ($(CONFIG_MULTI_DTB_FIT),y)
1048
1049 ifeq ($(CONFIG_MULTI_DTB_FIT_LZO),y)
1050 FINAL_DTB_CONTAINER = fit-dtb.blob.lzo
1051 else ifeq ($(CONFIG_MULTI_DTB_FIT_GZIP),y)
1052 FINAL_DTB_CONTAINER = fit-dtb.blob.gz
1053 else
1054 FINAL_DTB_CONTAINER = fit-dtb.blob
1055 endif
1056
1057 fit-dtb.blob.gz: fit-dtb.blob
1058         @gzip -kf9 $< > $@
1059
1060 fit-dtb.blob.lzo: fit-dtb.blob
1061         @lzop -f9 $< > $@
1062
1063 fit-dtb.blob: dts/dt.dtb FORCE
1064         $(call if_changed,mkimage)
1065 ifneq ($(SOURCE_DATE_EPOCH),)
1066         touch -d @$(SOURCE_DATE_EPOCH) fit-dtb.blob
1067         chmod 0600 fit-dtb.blob
1068 endif
1069
1070 MKIMAGEFLAGS_fit-dtb.blob = -f auto -A $(ARCH) -T firmware -C none -O u-boot \
1071         -a 0 -e 0 -E \
1072         $(patsubst %,-b arch/$(ARCH)/dts/%.dtb,$(subst ",,$(CONFIG_OF_LIST))) -d /dev/null
1073
1074 ifneq ($(EXT_DTB),)
1075 u-boot-fit-dtb.bin: u-boot-nodtb.bin $(EXT_DTB)
1076                 $(call if_changed,cat)
1077 else
1078 u-boot-fit-dtb.bin: u-boot-nodtb.bin $(FINAL_DTB_CONTAINER)
1079         $(call if_changed,cat)
1080 endif
1081
1082 u-boot.bin: u-boot-fit-dtb.bin FORCE
1083         $(call if_changed,copy)
1084 else ifeq ($(CONFIG_OF_SEPARATE),y)
1085 u-boot-dtb.bin: u-boot-nodtb.bin dts/dt.dtb FORCE
1086         $(call if_changed,cat)
1087
1088 u-boot.bin: u-boot-dtb.bin FORCE
1089         $(call if_changed,copy)
1090 else
1091 u-boot.bin: u-boot-nodtb.bin FORCE
1092         $(call if_changed,copy)
1093 endif
1094
1095 %.imx: %.bin
1096         $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@
1097
1098 %.vyb: %.imx
1099         $(Q)$(MAKE) $(build)=arch/arm/cpu/armv7/vf610 $@
1100
1101 quiet_cmd_copy = COPY    $@
1102       cmd_copy = cp $< $@
1103
1104 u-boot.dtb: dts/dt.dtb
1105         $(call cmd,copy)
1106
1107 OBJCOPYFLAGS_u-boot.hex := -O ihex
1108
1109 OBJCOPYFLAGS_u-boot.srec := -O srec
1110
1111 u-boot.hex u-boot.srec: u-boot FORCE
1112         $(call if_changed,objcopy)
1113
1114 OBJCOPYFLAGS_u-boot-elf.srec := $(OBJCOPYFLAGS_u-boot.srec)
1115
1116 u-boot-elf.srec: u-boot.elf FORCE
1117         $(call if_changed,objcopy)
1118
1119 OBJCOPYFLAGS_u-boot-spl.srec = $(OBJCOPYFLAGS_u-boot.srec)
1120
1121 spl/u-boot-spl.srec: spl/u-boot-spl FORCE
1122         $(call if_changed,objcopy)
1123
1124 %.scif: %.srec
1125         $(Q)$(MAKE) $(build)=arch/arm/mach-rmobile $@
1126
1127 OBJCOPYFLAGS_u-boot-nodtb.bin := -O binary \
1128                 $(if $(CONFIG_X86_16BIT_INIT),-R .start16 -R .resetvec) \
1129                 $(if $(CONFIG_MPC85XX_HAVE_RESET_VECTOR),-R .bootpg -R .resetvec)
1130
1131 OBJCOPYFLAGS_u-boot-spl.hex = $(OBJCOPYFLAGS_u-boot.hex)
1132
1133 spl/u-boot-spl.hex: spl/u-boot-spl FORCE
1134         $(call if_changed,objcopy)
1135
1136 binary_size_check: u-boot-nodtb.bin FORCE
1137         @file_size=$(shell wc -c u-boot-nodtb.bin | awk '{print $$1}') ; \
1138         map_size=$(shell cat u-boot.map | \
1139                 awk '/_image_copy_start/ {start = $$1} /_image_binary_end/ {end = $$1} END {if (start != "" && end != "") print "ibase=16; " toupper(end) " - " toupper(start)}' \
1140                 | sed 's/0X//g' \
1141                 | bc); \
1142         if [ "" != "$$map_size" ]; then \
1143                 if test $$map_size -ne $$file_size; then \
1144                         echo "u-boot.map shows a binary size of $$map_size" >&2 ; \
1145                         echo "  but u-boot-nodtb.bin shows $$file_size" >&2 ; \
1146                         exit 1; \
1147                 fi \
1148         fi
1149
1150 ifneq ($(CONFIG_SYS_INIT_SP_BSS_OFFSET),)
1151 ifneq ($(CONFIG_SYS_MALLOC_F_LEN),)
1152 subtract_sys_malloc_f_len = space=$$(($${space} - $(CONFIG_SYS_MALLOC_F_LEN)))
1153 else
1154 subtract_sys_malloc_f_len = true
1155 endif
1156 # The 1/4 margin below is somewhat arbitrary. The likely initial SP usage is
1157 # so low that the DTB could probably use 90%+ of the available space, for
1158 # current values of CONFIG_SYS_INIT_SP_BSS_OFFSET at least. However, let's be
1159 # safe for now and tweak this later if space becomes tight.
1160 # A rejected alternative would be to check that some absolute minimum stack
1161 # space was available. However, since CONFIG_SYS_INIT_SP_BSS_OFFSET is
1162 # deliberately build-specific, to take account of build-to-build stack usage
1163 # differences due to different feature sets, there is no common absolute value
1164 # to check against.
1165 init_sp_bss_offset_check: u-boot.dtb FORCE
1166         @dtb_size=$(shell wc -c u-boot.dtb | awk '{print $$1}') ; \
1167         space=$(CONFIG_SYS_INIT_SP_BSS_OFFSET) ; \
1168         $(subtract_sys_malloc_f_len) ; \
1169         quarter_space=$$(($${space} / 4)) ; \
1170         if [ $${dtb_size} -gt $${quarter_space} ]; then \
1171                 echo "u-boot.dtb is larger than 1 quarter of " >&2 ; \
1172                 echo "(CONFIG_SYS_INIT_SP_BSS_OFFSET - CONFIG_SYS_MALLOC_F_LEN)" >&2 ; \
1173                 exit 1 ; \
1174         fi
1175 endif
1176
1177 u-boot-nodtb.bin: u-boot FORCE
1178         $(call if_changed,objcopy)
1179         $(call DO_STATIC_RELA,$<,$@,$(CONFIG_SYS_TEXT_BASE))
1180         $(BOARD_SIZE_CHECK)
1181
1182 u-boot.ldr:     u-boot
1183                 $(CREATE_LDR_ENV)
1184                 $(LDR) -T $(CONFIG_CPU) -c $@ $< $(LDR_FLAGS)
1185                 $(BOARD_SIZE_CHECK)
1186
1187 # binman
1188 # ---------------------------------------------------------------------------
1189 # Use 'make BINMAN_DEBUG=1' to enable debugging
1190 quiet_cmd_binman = BINMAN  $@
1191 cmd_binman = $(srctree)/tools/binman/binman -u -d u-boot.dtb -O . -m \
1192                 -I . -I $(srctree) -I $(srctree)/board/$(BOARDDIR) \
1193                 $(if $(BINMAN_DEBUG),-D) $(BINMAN_$(@F)) $<
1194
1195 OBJCOPYFLAGS_u-boot.ldr.hex := -I binary -O ihex
1196
1197 OBJCOPYFLAGS_u-boot.ldr.srec := -I binary -O srec
1198
1199 u-boot.ldr.hex u-boot.ldr.srec: u-boot.ldr FORCE
1200         $(call if_changed,objcopy)
1201
1202 #
1203 # U-Boot entry point, needed for booting of full-blown U-Boot
1204 # from the SPL U-Boot version.
1205 #
1206 ifndef CONFIG_SYS_UBOOT_START
1207 CONFIG_SYS_UBOOT_START := 0
1208 endif
1209
1210 # Boards with more complex image requirments can provide an .its source file
1211 # or a generator script
1212 ifneq ($(CONFIG_SPL_FIT_SOURCE),"")
1213 U_BOOT_ITS = $(subst ",,$(CONFIG_SPL_FIT_SOURCE))
1214 else
1215 ifneq ($(CONFIG_SPL_FIT_GENERATOR),"")
1216 U_BOOT_ITS := u-boot.its
1217 ifeq ($(CONFIG_SPL_FIT_GENERATOR),"arch/arm/mach-imx/mkimage_fit_atf.sh")
1218 U_BOOT_ITS_DEPS += u-boot-nodtb.bin
1219 endif
1220 ifeq ($(CONFIG_SPL_FIT_GENERATOR),"arch/arm/mach-rockchip/make_fit_atf.py")
1221 U_BOOT_ITS_DEPS += u-boot
1222 endif
1223 $(U_BOOT_ITS): $(U_BOOT_ITS_DEPS) FORCE
1224         $(srctree)/$(CONFIG_SPL_FIT_GENERATOR) \
1225         $(patsubst %,arch/$(ARCH)/dts/%.dtb,$(subst ",,$(CONFIG_OF_LIST))) > $@
1226 endif
1227 endif
1228
1229 ifdef CONFIG_SPL_LOAD_FIT
1230 MKIMAGEFLAGS_u-boot.img = -f auto -A $(ARCH) -T firmware -C none -O u-boot \
1231         -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \
1232         -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board" -E \
1233         $(patsubst %,-b arch/$(ARCH)/dts/%.dtb,$(subst ",,$(CONFIG_OF_LIST)))
1234 else
1235 MKIMAGEFLAGS_u-boot.img = -A $(ARCH) -T firmware -C none -O u-boot \
1236         -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \
1237         -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board"
1238 MKIMAGEFLAGS_u-boot-ivt.img = -A $(ARCH) -T firmware_ivt -C none -O u-boot \
1239         -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \
1240         -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board"
1241 u-boot-ivt.img: MKIMAGEOUTPUT = u-boot-ivt.img.log
1242 CLEAN_FILES += u-boot-ivt.img.log u-boot-dtb.imx.log SPL.log u-boot.imx.log
1243 endif
1244
1245 MKIMAGEFLAGS_u-boot-dtb.img = $(MKIMAGEFLAGS_u-boot.img)
1246
1247 MKIMAGEFLAGS_u-boot.kwb = -n $(srctree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%) \
1248         -T kwbimage -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE)
1249
1250 MKIMAGEFLAGS_u-boot-spl.kwb = -n $(srctree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%) \
1251         -T kwbimage -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE) \
1252         $(if $(KEYDIR),-k $(KEYDIR))
1253
1254 MKIMAGEFLAGS_u-boot.pbl = -n $(srctree)/$(CONFIG_SYS_FSL_PBL_RCW:"%"=%) \
1255                 -R $(srctree)/$(CONFIG_SYS_FSL_PBL_PBI:"%"=%) -T pblimage
1256
1257 u-boot-dtb.img u-boot.img u-boot.kwb u-boot.pbl u-boot-ivt.img: \
1258                 $(if $(CONFIG_SPL_LOAD_FIT),u-boot-nodtb.bin dts/dt.dtb,u-boot.bin) FORCE
1259         $(call if_changed,mkimage)
1260         $(BOARD_SIZE_CHECK)
1261
1262 ifeq ($(CONFIG_SPL_LOAD_FIT_FULL),y)
1263 MKIMAGEFLAGS_u-boot.itb =
1264 else
1265 MKIMAGEFLAGS_u-boot.itb = -E
1266 endif
1267
1268 u-boot.itb: u-boot-nodtb.bin dts/dt.dtb $(U_BOOT_ITS) FORCE
1269         $(call if_changed,mkfitimage)
1270         $(BOARD_SIZE_CHECK)
1271
1272 u-boot-spl.kwb: u-boot.img spl/u-boot-spl.bin FORCE
1273         $(call if_changed,mkimage)
1274
1275 u-boot.sha1:    u-boot.bin
1276                 tools/ubsha1 u-boot.bin
1277
1278 u-boot.dis:     u-boot
1279                 $(OBJDUMP) -d $< > $@
1280
1281 ifneq ($(CONFIG_SPL_PAYLOAD),)
1282 SPL_PAYLOAD := $(CONFIG_SPL_PAYLOAD:"%"=%)
1283 else
1284 SPL_PAYLOAD := u-boot.bin
1285 endif
1286
1287 SPL_IMAGE := $(CONFIG_SPL_IMAGE:"%"=%)
1288
1289 OBJCOPYFLAGS_u-boot-with-spl.bin = -I binary -O binary \
1290                                    --pad-to=$(CONFIG_SPL_PAD_TO)
1291 u-boot-with-spl.bin: $(SPL_IMAGE) $(SPL_PAYLOAD) FORCE
1292         $(call if_changed,pad_cat)
1293
1294 ifeq ($(CONFIG_ARCH_LPC32XX)$(CONFIG_SPL),yy)
1295 MKIMAGEFLAGS_lpc32xx-spl.img = -T lpc32xximage -a $(CONFIG_SPL_TEXT_BASE)
1296
1297 lpc32xx-spl.img: spl/u-boot-spl.bin FORCE
1298         $(call if_changed,mkimage)
1299
1300 OBJCOPYFLAGS_lpc32xx-boot-0.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO)
1301
1302 lpc32xx-boot-0.bin: lpc32xx-spl.img FORCE
1303         $(call if_changed,objcopy)
1304
1305 OBJCOPYFLAGS_lpc32xx-boot-1.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO)
1306
1307 lpc32xx-boot-1.bin: lpc32xx-spl.img FORCE
1308         $(call if_changed,objcopy)
1309
1310 lpc32xx-full.bin: lpc32xx-boot-0.bin lpc32xx-boot-1.bin u-boot.img FORCE
1311         $(call if_changed,cat)
1312
1313 CLEAN_FILES += lpc32xx-*
1314 endif
1315
1316 OBJCOPYFLAGS_u-boot-with-tpl.bin = -I binary -O binary \
1317                                    --pad-to=$(CONFIG_TPL_PAD_TO)
1318 tpl/u-boot-with-tpl.bin: tpl/u-boot-tpl.bin u-boot.bin FORCE
1319         $(call if_changed,pad_cat)
1320
1321 SPL: spl/u-boot-spl.bin FORCE
1322         $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@
1323
1324 ifeq ($(CONFIG_ARCH_IMX8M)$(CONFIG_ARCH_IMX8), y)
1325 flash.bin: spl/u-boot-spl.bin u-boot.itb FORCE
1326         $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@
1327 endif
1328
1329 u-boot-with-spl.imx u-boot-with-nand-spl.imx: SPL u-boot.bin FORCE
1330         $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@
1331
1332 MKIMAGEFLAGS_u-boot.ubl = -n $(UBL_CONFIG) -T ublimage -e $(CONFIG_SYS_TEXT_BASE)
1333
1334 u-boot.ubl: u-boot-with-spl.bin FORCE
1335         $(call if_changed,mkimage)
1336
1337 MKIMAGEFLAGS_u-boot-spl.ais = -s -n $(if $(CONFIG_AIS_CONFIG_FILE), \
1338         $(srctree)/$(CONFIG_AIS_CONFIG_FILE:"%"=%),"/dev/null") \
1339         -T aisimage -e $(CONFIG_SPL_TEXT_BASE)
1340 spl/u-boot-spl.ais: spl/u-boot-spl.bin FORCE
1341         $(call if_changed,mkimage)
1342
1343 OBJCOPYFLAGS_u-boot.ais = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO)
1344 u-boot.ais: spl/u-boot-spl.ais u-boot.img FORCE
1345         $(call if_changed,pad_cat)
1346
1347 u-boot-signed.sb: u-boot.bin spl/u-boot-spl.bin
1348         $(Q)$(MAKE) $(build)=arch/arm/cpu/arm926ejs/mxs u-boot-signed.sb
1349 u-boot.sb: u-boot.bin spl/u-boot-spl.bin
1350         $(Q)$(MAKE) $(build)=arch/arm/cpu/arm926ejs/mxs u-boot.sb
1351
1352 # On x600 (SPEAr600) U-Boot is appended to U-Boot SPL.
1353 # Both images are created using mkimage (crc etc), so that the ROM
1354 # bootloader can check its integrity. Padding needs to be done to the
1355 # SPL image (with mkimage header) and not the binary. Otherwise the resulting image
1356 # which is loaded/copied by the ROM bootloader to SRAM doesn't fit.
1357 # The resulting image containing both U-Boot images is called u-boot.spr
1358 MKIMAGEFLAGS_u-boot-spl.img = -A $(ARCH) -T firmware -C none \
1359         -a $(CONFIG_SPL_TEXT_BASE) -e $(CONFIG_SPL_TEXT_BASE) -n XLOADER
1360 spl/u-boot-spl.img: spl/u-boot-spl.bin FORCE
1361         $(call if_changed,mkimage)
1362
1363 OBJCOPYFLAGS_u-boot.spr = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) \
1364                           --gap-fill=0xff
1365 u-boot.spr: spl/u-boot-spl.img u-boot.img FORCE
1366         $(call if_changed,pad_cat)
1367
1368 ifneq ($(CONFIG_ARCH_SOCFPGA),)
1369 quiet_cmd_socboot = SOCBOOT $@
1370 cmd_socboot = cat       spl/u-boot-spl.sfp spl/u-boot-spl.sfp   \
1371                         spl/u-boot-spl.sfp spl/u-boot-spl.sfp   \
1372                         u-boot.img > $@ || rm -f $@
1373 u-boot-with-spl.sfp: spl/u-boot-spl.sfp u-boot.img FORCE
1374         $(call if_changed,socboot)
1375 endif
1376
1377 ifeq ($(CONFIG_MPC85xx)$(CONFIG_OF_SEPARATE),yy)
1378 u-boot-with-dtb.bin: u-boot.bin u-boot.dtb \
1379         $(if $(CONFIG_MPC85XX_HAVE_RESET_VECTOR), u-boot-br.bin) FORCE
1380         $(call if_changed,binman)
1381
1382 ifeq ($(CONFIG_MPC85XX_HAVE_RESET_VECTOR),y)
1383 OBJCOPYFLAGS_u-boot-br.bin := -O binary -j .bootpg -j .resetvec
1384 u-boot-br.bin: u-boot FORCE
1385         $(call if_changed,objcopy)
1386 endif
1387 endif
1388
1389 # x86 uses a large ROM. We fill it with 0xff, put the 16-bit stuff (including
1390 # reset vector) at the top, Intel ME descriptor at the bottom, and U-Boot in
1391 # the middle. This is handled by binman based on an image description in the
1392 # board's device tree.
1393 ifneq ($(CONFIG_X86_RESET_VECTOR),)
1394 rom: u-boot.rom FORCE
1395
1396 refcode.bin: $(srctree)/board/$(BOARDDIR)/refcode.bin FORCE
1397         $(call if_changed,copy)
1398
1399 quiet_cmd_ldr = LD      $@
1400 cmd_ldr = $(LD) $(LDFLAGS_$(@F)) \
1401                $(filter-out FORCE,$^) -o $@
1402
1403 u-boot.rom: u-boot-x86-16bit.bin u-boot.bin \
1404                 $(if $(CONFIG_SPL_X86_16BIT_INIT),spl/u-boot-spl.bin) \
1405                 $(if $(CONFIG_TPL_X86_16BIT_INIT),tpl/u-boot-tpl.bin) \
1406                 $(if $(CONFIG_HAVE_REFCODE),refcode.bin) FORCE
1407         $(call if_changed,binman)
1408
1409 OBJCOPYFLAGS_u-boot-x86-16bit.bin := -O binary -j .start16 -j .resetvec
1410 u-boot-x86-16bit.bin: u-boot FORCE
1411         $(call if_changed,objcopy)
1412 endif
1413
1414 ifneq ($(CONFIG_ARCH_SUNXI),)
1415 ifeq ($(CONFIG_ARM64),)
1416 u-boot-sunxi-with-spl.bin: spl/sunxi-spl.bin u-boot.img u-boot.dtb FORCE
1417         $(call if_changed,binman)
1418 else
1419 u-boot-sunxi-with-spl.bin: spl/sunxi-spl.bin u-boot.itb FORCE
1420         $(call if_changed,cat)
1421 endif
1422 endif
1423
1424 ifneq ($(CONFIG_TEGRA),)
1425 ifneq ($(CONFIG_BINMAN),)
1426 # Makes u-boot-dtb-tegra.bin u-boot-tegra.bin u-boot-nodtb-tegra.bin
1427 %-dtb-tegra.bin %-tegra.bin %-nodtb-tegra.bin: \
1428                 spl/%-spl %.bin FORCE
1429         $(call if_changed,binman)
1430 else
1431 OBJCOPYFLAGS_u-boot-nodtb-tegra.bin = -O binary --pad-to=$(CONFIG_SYS_TEXT_BASE)
1432 u-boot-nodtb-tegra.bin: spl/u-boot-spl u-boot-nodtb.bin FORCE
1433         $(call if_changed,pad_cat)
1434
1435 OBJCOPYFLAGS_u-boot-tegra.bin = -O binary --pad-to=$(CONFIG_SYS_TEXT_BASE)
1436 u-boot-tegra.bin: spl/u-boot-spl u-boot.bin FORCE
1437         $(call if_changed,pad_cat)
1438
1439 u-boot-dtb-tegra.bin: u-boot-tegra.bin FORCE
1440         $(call if_changed,copy)
1441 endif  # binman
1442 endif
1443
1444 OBJCOPYFLAGS_u-boot-app.efi := $(OBJCOPYFLAGS_EFI)
1445 u-boot-app.efi: u-boot FORCE
1446         $(call if_changed,zobjcopy)
1447
1448 u-boot.bin.o: u-boot.bin FORCE
1449         $(call if_changed,efipayload)
1450
1451 u-boot-payload.lds: $(LDSCRIPT_EFI) FORCE
1452         $(call if_changed_dep,cpp_lds)
1453
1454 # Rule to link the EFI payload which contains a stub and a U-Boot binary
1455 quiet_cmd_u-boot_payload ?= LD      $@
1456       cmd_u-boot_payload ?= $(LD) $(LDFLAGS_EFI_PAYLOAD) -o $@ \
1457       -T u-boot-payload.lds arch/x86/cpu/call32.o \
1458       lib/efi/efi.o lib/efi/efi_stub.o u-boot.bin.o \
1459       $(addprefix arch/$(ARCH)/lib/,$(EFISTUB))
1460
1461 u-boot-payload: u-boot.bin.o u-boot-payload.lds FORCE
1462         $(call if_changed,u-boot_payload)
1463
1464 OBJCOPYFLAGS_u-boot-payload.efi := $(OBJCOPYFLAGS_EFI)
1465 u-boot-payload.efi: u-boot-payload FORCE
1466         $(call if_changed,zobjcopy)
1467
1468 u-boot-img.bin: spl/u-boot-spl.bin u-boot.img FORCE
1469         $(call if_changed,cat)
1470
1471 #Add a target to create boot binary having SPL binary in PBI format
1472 #concatenated with u-boot binary. It is need by PowerPC SoC having
1473 #internal SRAM <= 512KB.
1474 MKIMAGEFLAGS_u-boot-spl.pbl = -n $(srctree)/$(CONFIG_SYS_FSL_PBL_RCW:"%"=%) \
1475                 -R $(srctree)/$(CONFIG_SYS_FSL_PBL_PBI:"%"=%) -T pblimage \
1476                 -A $(ARCH) -a $(CONFIG_SPL_TEXT_BASE)
1477
1478 spl/u-boot-spl.pbl: spl/u-boot-spl.bin FORCE
1479         $(call if_changed,mkimage)
1480
1481 ifeq ($(ARCH),arm)
1482 UBOOT_BINLOAD := u-boot.img
1483 else
1484 ifeq ($(CONFIG_MPC85xx)$(CONFIG_OF_SEPARATE),yy)
1485 UBOOT_BINLOAD := u-boot-with-dtb.bin
1486 else
1487 UBOOT_BINLOAD := u-boot.bin
1488 endif
1489 endif
1490
1491 OBJCOPYFLAGS_u-boot-with-spl-pbl.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) \
1492                           --gap-fill=0xff
1493
1494 u-boot-with-spl-pbl.bin: spl/u-boot-spl.pbl $(UBOOT_BINLOAD) FORCE
1495         $(call if_changed,pad_cat)
1496
1497 # PPC4xx needs the SPL at the end of the image, since the reset vector
1498 # is located at 0xfffffffc. So we can't use the "u-boot-img.bin" target
1499 # and need to introduce a new build target with the full blown U-Boot
1500 # at the start padded up to the start of the SPL image. And then concat
1501 # the SPL image to the end.
1502
1503 OBJCOPYFLAGS_u-boot-img-spl-at-end.bin := -I binary -O binary \
1504         --pad-to=$(CONFIG_UBOOT_PAD_TO) --gap-fill=0xff
1505 u-boot-img-spl-at-end.bin: u-boot.img spl/u-boot-spl.bin FORCE
1506         $(call if_changed,pad_cat)
1507
1508 # Create a new ELF from a raw binary file.
1509 ifndef PLATFORM_ELFENTRY
1510   PLATFORM_ELFENTRY = "_start"
1511 endif
1512 quiet_cmd_u-boot-elf ?= LD      $@
1513         cmd_u-boot-elf ?= $(LD) u-boot-elf.o -o $@ \
1514         --defsym=$(PLATFORM_ELFENTRY)=$(CONFIG_SYS_TEXT_BASE) \
1515         -Ttext=$(CONFIG_SYS_TEXT_BASE)
1516 u-boot.elf: u-boot.bin
1517         $(Q)$(OBJCOPY) -I binary $(PLATFORM_ELFFLAGS) $< u-boot-elf.o
1518         $(call if_changed,u-boot-elf)
1519
1520 # MediaTek's ARM-based u-boot needs a header to contains its load address
1521 # which is parsed by the BootROM.
1522 # If the SPL build is enabled, the header will be added to the spl binary,
1523 # and the spl binary and the u-boot.img will be combined into one file.
1524 # Otherwise the header will be added to the u-boot.bin directly.
1525
1526 ifeq ($(CONFIG_SPL),y)
1527 spl/u-boot-spl-mtk.bin: spl/u-boot-spl
1528
1529 u-boot-mtk.bin: u-boot.dtb u-boot.img spl/u-boot-spl-mtk.bin FORCE
1530         $(call if_changed,binman)
1531 else
1532 MKIMAGEFLAGS_u-boot-mtk.bin = -T mtk_image \
1533         -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE) \
1534         -n "$(patsubst "%",%,$(CONFIG_MTK_BROM_HEADER_INFO))"
1535
1536 u-boot-mtk.bin: u-boot.bin FORCE
1537         $(call if_changed,mkimage)
1538 endif
1539
1540 ARCH_POSTLINK := $(wildcard $(srctree)/arch/$(ARCH)/Makefile.postlink)
1541
1542 # Rule to link u-boot
1543 # May be overridden by arch/$(ARCH)/config.mk
1544 quiet_cmd_u-boot__ ?= LD      $@
1545       cmd_u-boot__ ?= $(LD) $(LDFLAGS) $(LDFLAGS_u-boot) -o $@ \
1546       -T u-boot.lds $(u-boot-init)                             \
1547       --start-group $(u-boot-main) --end-group                 \
1548       $(PLATFORM_LIBS) -Map u-boot.map;                        \
1549       $(if $(ARCH_POSTLINK), $(MAKE) -f $(ARCH_POSTLINK) $@, true)
1550
1551 quiet_cmd_smap = GEN     common/system_map.o
1552 cmd_smap = \
1553         smap=`$(call SYSTEM_MAP,u-boot) | \
1554                 awk '$$2 ~ /[tTwW]/ {printf $$1 $$3 "\\\\000"}'` ; \
1555         $(CC) $(c_flags) -DSYSTEM_MAP="\"$${smap}\"" \
1556                 -c $(srctree)/common/system_map.c -o common/system_map.o
1557
1558 u-boot: $(u-boot-init) $(u-boot-main) u-boot.lds FORCE
1559         +$(call if_changed,u-boot__)
1560 ifeq ($(CONFIG_KALLSYMS),y)
1561         $(call cmd,smap)
1562         $(call cmd,u-boot__) common/system_map.o
1563 endif
1564
1565 ifeq ($(CONFIG_RISCV),y)
1566         @tools/prelink-riscv $@ 0
1567 endif
1568
1569 quiet_cmd_sym ?= SYM     $@
1570       cmd_sym ?= $(OBJDUMP) -t $< > $@
1571 u-boot.sym: u-boot FORCE
1572         $(call if_changed,sym)
1573
1574 # The actual objects are generated when descending,
1575 # make sure no implicit rule kicks in
1576 $(sort $(u-boot-init) $(u-boot-main)): $(u-boot-dirs) ;
1577
1578 # Handle descending into subdirectories listed in $(vmlinux-dirs)
1579 # Preset locale variables to speed up the build process. Limit locale
1580 # tweaks to this spot to avoid wrong language settings when running
1581 # make menuconfig etc.
1582 # Error messages still appears in the original language
1583
1584 PHONY += $(u-boot-dirs)
1585 $(u-boot-dirs): prepare scripts
1586         $(Q)$(MAKE) $(build)=$@
1587
1588 tools: prepare
1589 # The "tools" are needed early
1590 $(filter-out tools, $(u-boot-dirs)): tools
1591 # The "examples" conditionally depend on U-Boot (say, when USE_PRIVATE_LIBGCC
1592 # is "yes"), so compile examples after U-Boot is compiled.
1593 examples: $(filter-out examples, $(u-boot-dirs))
1594
1595 define filechk_uboot.release
1596         echo "$(UBOOTVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))"
1597 endef
1598
1599 # Store (new) UBOOTRELEASE string in include/config/uboot.release
1600 include/config/uboot.release: include/config/auto.conf FORCE
1601         $(call filechk,uboot.release)
1602
1603
1604 # Things we need to do before we recursively start building the kernel
1605 # or the modules are listed in "prepare".
1606 # A multi level approach is used. prepareN is processed before prepareN-1.
1607 # archprepare is used in arch Makefiles and when processed asm symlink,
1608 # version.h and scripts_basic is processed / created.
1609
1610 # Listed in dependency order
1611 PHONY += prepare archprepare prepare0 prepare1 prepare2 prepare3
1612
1613 # prepare3 is used to check if we are building in a separate output directory,
1614 # and if so do:
1615 # 1) Check that make has not been executed in the kernel src $(srctree)
1616 prepare3: include/config/uboot.release
1617 ifneq ($(KBUILD_SRC),)
1618         @$(kecho) '  Using $(srctree) as source for U-Boot'
1619         $(Q)if [ -f $(srctree)/.config -o -d $(srctree)/include/config ]; then \
1620                 echo >&2 "  $(srctree) is not clean, please run 'make mrproper'"; \
1621                 echo >&2 "  in the '$(srctree)' directory.";\
1622                 /bin/false; \
1623         fi;
1624 endif
1625
1626 # prepare2 creates a makefile if using a separate output directory
1627 prepare2: prepare3 outputmakefile cfg
1628
1629 prepare1: prepare2 $(version_h) $(timestamp_h) \
1630                    include/config/auto.conf
1631 ifeq ($(wildcard $(LDSCRIPT)),)
1632         @echo >&2 "  Could not find linker script."
1633         @/bin/false
1634 endif
1635
1636 ifeq ($(CONFIG_USE_DEFAULT_ENV_FILE),y)
1637 prepare1: $(defaultenv_h)
1638 endif
1639
1640 archprepare: prepare1 scripts_basic
1641
1642 prepare0: archprepare FORCE
1643         $(Q)$(MAKE) $(build)=.
1644
1645 # All the preparing..
1646 prepare: prepare0
1647
1648 # Generate some files
1649 # ---------------------------------------------------------------------------
1650
1651 define filechk_version.h
1652         (echo \#define PLAIN_VERSION \"$(UBOOTRELEASE)\"; \
1653         echo \#define U_BOOT_VERSION \"U-Boot \" PLAIN_VERSION; \
1654         echo \#define CC_VERSION_STRING \"$$(LC_ALL=C $(CC) --version | head -n 1)\"; \
1655         echo \#define LD_VERSION_STRING \"$$(LC_ALL=C $(LD) --version | head -n 1)\"; )
1656 endef
1657
1658 # The SOURCE_DATE_EPOCH mechanism requires a date that behaves like GNU date.
1659 # The BSD date on the other hand behaves different and would produce errors
1660 # with the misused '-d' switch.  Respect that and search a working date with
1661 # well known pre- and suffixes for the GNU variant of date.
1662 define filechk_timestamp.h
1663         (if test -n "$${SOURCE_DATE_EPOCH}"; then \
1664                 SOURCE_DATE="@$${SOURCE_DATE_EPOCH}"; \
1665                 DATE=""; \
1666                 for date in gdate date.gnu date; do \
1667                         $${date} -u -d "$${SOURCE_DATE}" >/dev/null 2>&1 && DATE="$${date}"; \
1668                 done; \
1669                 if test -n "$${DATE}"; then \
1670                         LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_DATE "%b %d %C%y"'; \
1671                         LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_TIME "%T"'; \
1672                         LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_TZ "%z"'; \
1673                         LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_DMI_DATE "%m/%d/%Y"'; \
1674                         LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_BUILD_DATE 0x%Y%m%d'; \
1675                 else \
1676                         return 42; \
1677                 fi; \
1678         else \
1679                 LC_ALL=C date +'#define U_BOOT_DATE "%b %d %C%y"'; \
1680                 LC_ALL=C date +'#define U_BOOT_TIME "%T"'; \
1681                 LC_ALL=C date +'#define U_BOOT_TZ "%z"'; \
1682                 LC_ALL=C date +'#define U_BOOT_DMI_DATE "%m/%d/%Y"'; \
1683                 LC_ALL=C date +'#define U_BOOT_BUILD_DATE 0x%Y%m%d'; \
1684         fi)
1685 endef
1686
1687 define filechk_defaultenv.h
1688         (grep -v '^#' | \
1689          grep -v '^$$' | \
1690          tr '\n' '\0' | \
1691          sed -e 's/\\\x0/\n/' | \
1692          xxd -i ; echo ", 0x00" ; )
1693 endef
1694
1695 $(version_h): include/config/uboot.release FORCE
1696         $(call filechk,version.h)
1697
1698 $(timestamp_h): $(srctree)/Makefile FORCE
1699         $(call filechk,timestamp.h)
1700
1701 $(defaultenv_h): $(CONFIG_DEFAULT_ENV_FILE:"%"=%) FORCE
1702         $(call filechk,defaultenv.h)
1703
1704 # ---------------------------------------------------------------------------
1705 quiet_cmd_cpp_lds = LDS     $@
1706 cmd_cpp_lds = $(CPP) -Wp,-MD,$(depfile) $(cpp_flags) $(LDPPFLAGS) \
1707                 -D__ASSEMBLY__ -x assembler-with-cpp -std=c99 -P -o $@ $<
1708
1709 u-boot.lds: $(LDSCRIPT) prepare FORCE
1710         $(call if_changed_dep,cpp_lds)
1711
1712 spl/u-boot-spl.bin: spl/u-boot-spl
1713         @:
1714 spl/u-boot-spl: tools prepare \
1715                 $(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_SPL_OF_PLATDATA),dts/dt.dtb) \
1716                 $(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_TPL_OF_PLATDATA),dts/dt.dtb)
1717         $(Q)$(MAKE) obj=spl -f $(srctree)/scripts/Makefile.spl all
1718
1719 spl/sunxi-spl.bin: spl/u-boot-spl
1720         @:
1721
1722 spl/sunxi-spl-with-ecc.bin: spl/sunxi-spl.bin
1723         @:
1724
1725 spl/u-boot-spl.sfp: spl/u-boot-spl
1726         @:
1727
1728 spl/boot.bin: spl/u-boot-spl
1729         @:
1730
1731 tpl/u-boot-tpl.bin: tools prepare \
1732                 $(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_SPL_OF_PLATDATA),dts/dt.dtb)
1733         $(Q)$(MAKE) obj=tpl -f $(srctree)/scripts/Makefile.spl all
1734
1735 TAG_SUBDIRS := $(patsubst %,$(srctree)/%,$(u-boot-dirs) include)
1736
1737 FIND := find
1738 FINDFLAGS := -L
1739
1740 tags ctags:
1741                 ctags -w -o ctags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \
1742                                                 -name '*.[chS]' -print`
1743                 ln -s ctags tags
1744
1745 etags:
1746                 etags -a -o etags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \
1747                                                 -name '*.[chS]' -print`
1748 cscope:
1749                 $(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) -name '*.[chS]' -print > \
1750                                                 cscope.files
1751                 cscope -b -q -k
1752
1753 SYSTEM_MAP = \
1754                 $(NM) $1 | \
1755                 grep -v '\(compiled\)\|\(\.o$$\)\|\( [aUw] \)\|\(\.\.ng$$\)\|\(LASH[RL]DI\)' | \
1756                 LC_ALL=C sort
1757 System.map:     u-boot
1758                 @$(call SYSTEM_MAP,$<) > $@
1759
1760 #########################################################################
1761
1762 # ARM relocations should all be R_ARM_RELATIVE (32-bit) or
1763 # R_AARCH64_RELATIVE (64-bit).
1764 checkarmreloc: u-boot
1765         @RELOC="`$(CROSS_COMPILE)readelf -r -W $< | cut -d ' ' -f 4 | \
1766                 grep R_A | sort -u`"; \
1767         if test "$$RELOC" != "R_ARM_RELATIVE" -a \
1768                  "$$RELOC" != "R_AARCH64_RELATIVE"; then \
1769                 echo "$< contains unexpected relocations: $$RELOC"; \
1770                 false; \
1771         fi
1772
1773 envtools: scripts_basic $(version_h) $(timestamp_h)
1774         $(Q)$(MAKE) $(build)=tools/env
1775
1776 tools-only: scripts_basic $(version_h) $(timestamp_h)
1777         $(Q)$(MAKE) $(build)=tools
1778
1779 tools-all: export HOST_TOOLS_ALL=y
1780 tools-all: envtools tools ;
1781
1782 cross_tools: export CROSS_BUILD_TOOLS=y
1783 cross_tools: tools ;
1784
1785 .PHONY : CHANGELOG
1786 CHANGELOG:
1787         git log --no-merges U-Boot-1_1_5.. | \
1788         unexpand -a | sed -e 's/\s\s*$$//' > $@
1789
1790 #########################################################################
1791
1792 ###
1793 # Cleaning is done on three levels.
1794 # make clean     Delete most generated files
1795 #                Leave enough to build external modules
1796 # make mrproper  Delete the current configuration, and all generated files
1797 # make distclean Remove editor backup files, patch leftover files and the like
1798
1799 # Directories & files removed with 'make clean'
1800 CLEAN_DIRS  += $(MODVERDIR) \
1801                $(foreach d, spl tpl, $(patsubst %,$d/%, \
1802                         $(filter-out include, $(shell ls -1 $d 2>/dev/null))))
1803
1804 CLEAN_FILES += include/bmp_logo.h include/bmp_logo_data.h \
1805                boot* u-boot* MLO* SPL System.map fit-dtb.blob*
1806
1807 # Directories & files removed with 'make mrproper'
1808 MRPROPER_DIRS  += include/config include/generated spl tpl \
1809                   .tmp_objdiff
1810 MRPROPER_FILES += .config .config.old include/autoconf.mk* include/config.h \
1811                   ctags etags tags TAGS cscope* GPATH GTAGS GRTAGS GSYMS \
1812                   drivers/video/fonts/*.S
1813
1814 # clean - Delete most, but leave enough to build external modules
1815 #
1816 clean: rm-dirs  := $(CLEAN_DIRS)
1817 clean: rm-files := $(CLEAN_FILES)
1818
1819 clean-dirs      := $(foreach f,$(u-boot-alldirs),$(if $(wildcard $(srctree)/$f/Makefile),$f))
1820
1821 clean-dirs      := $(addprefix _clean_, $(clean-dirs))
1822
1823 PHONY += $(clean-dirs) clean archclean
1824 $(clean-dirs):
1825         $(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$@)
1826
1827 clean: $(clean-dirs)
1828         $(call cmd,rmdirs)
1829         $(call cmd,rmfiles)
1830         @find $(if $(KBUILD_EXTMOD), $(KBUILD_EXTMOD), .) $(RCS_FIND_IGNORE) \
1831                 \( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \
1832                 -o -name '*.ko.*' -o -name '*.su' \
1833                 -o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \
1834                 -o -name '*.lex.c' -o -name '*.tab.[ch]' \
1835                 -o -name '*.symtypes' -o -name 'modules.order' \
1836                 -o -name modules.builtin -o -name '.tmp_*.o.*' \
1837                 -o -name 'dsdt.aml' -o -name 'dsdt.asl.tmp' -o -name 'dsdt.c' \
1838                 -o -name '*.efi' -o -name '*.gcno' -o -name '*.so' \) \
1839                 -type f -print | xargs rm -f
1840
1841 # mrproper - Delete all generated files, including .config
1842 #
1843 mrproper: rm-dirs  := $(wildcard $(MRPROPER_DIRS))
1844 mrproper: rm-files := $(wildcard $(MRPROPER_FILES))
1845 mrproper-dirs      := $(addprefix _mrproper_,scripts)
1846
1847 PHONY += $(mrproper-dirs) mrproper archmrproper
1848 $(mrproper-dirs):
1849         $(Q)$(MAKE) $(clean)=$(patsubst _mrproper_%,%,$@)
1850
1851 mrproper: clean $(mrproper-dirs)
1852         $(call cmd,rmdirs)
1853         $(call cmd,rmfiles)
1854         @rm -f arch/*/include/asm/arch
1855
1856 # distclean
1857 #
1858 PHONY += distclean
1859
1860 distclean: mrproper
1861         @find $(srctree) $(RCS_FIND_IGNORE) \
1862                 \( -name '*.orig' -o -name '*.rej' -o -name '*~' \
1863                 -o -name '*.bak' -o -name '#*#' -o -name '.*.orig' \
1864                 -o -name '.*.rej' -o -name '*%' -o -name 'core' \
1865                 -o -name '*.pyc' \) \
1866                 -type f -print | xargs rm -f
1867         @rm -f boards.cfg CHANGELOG
1868
1869 backup:
1870         F=`basename $(srctree)` ; cd .. ; \
1871         gtar --force-local -zcvf `LC_ALL=C date "+$$F-%Y-%m-%d-%T.tar.gz"` $$F
1872
1873 help:
1874         @echo  'Cleaning targets:'
1875         @echo  '  clean           - Remove most generated files but keep the config'
1876         @echo  '  mrproper        - Remove all generated files + config + various backup files'
1877         @echo  '  distclean       - mrproper + remove editor backup and patch files'
1878         @echo  ''
1879         @echo  'Configuration targets:'
1880         @$(MAKE) -f $(srctree)/scripts/kconfig/Makefile help
1881         @echo  ''
1882         @echo  'Test targets:'
1883         @echo  ''
1884         @echo  '  check           - Run all automated tests that use sandbox'
1885         @echo  '  qcheck          - Run quick automated tests that use sandbox'
1886         @echo  ''
1887         @echo  'Other generic targets:'
1888         @echo  '  all             - Build all necessary images depending on configuration'
1889         @echo  '  tests           - Build U-Boot for sandbox and run tests'
1890         @echo  '* u-boot          - Build the bare u-boot'
1891         @echo  '  dir/            - Build all files in dir and below'
1892         @echo  '  dir/file.[oisS] - Build specified target only'
1893         @echo  '  dir/file.lst    - Build specified mixed source/assembly target only'
1894         @echo  '                    (requires a recent binutils and recent build (System.map))'
1895         @echo  '  tags/ctags      - Generate ctags file for editors'
1896         @echo  '  etags           - Generate etags file for editors'
1897         @echo  '  cscope          - Generate cscope index'
1898         @echo  '  ubootrelease    - Output the release version string (use with make -s)'
1899         @echo  '  ubootversion    - Output the version stored in Makefile (use with make -s)'
1900         @echo  "  cfg             - Don't build, just create the .cfg files"
1901         @echo  "  envtools        - Build only the target-side environment tools"
1902         @echo  ''
1903         @echo  'Static analysers'
1904         @echo  '  checkstack      - Generate a list of stack hogs'
1905         @echo  '  coccicheck      - Execute static code analysis with Coccinelle'
1906         @echo  ''
1907         @echo  'Documentation targets:'
1908         @$(MAKE) -f $(srctree)/Documentation/Makefile dochelp
1909         @echo  ''
1910         @echo  '  make V=0|1 [targets] 0 => quiet build (default), 1 => verbose build'
1911         @echo  '  make V=2   [targets] 2 => give reason for rebuild of target'
1912         @echo  '  make O=dir [targets] Locate all output files in "dir", including .config'
1913         @echo  '  make C=1   [targets] Check all c source with $$CHECK (sparse by default)'
1914         @echo  '  make C=2   [targets] Force check of all c source with $$CHECK'
1915         @echo  '  make RECORDMCOUNT_WARN=1 [targets] Warn about ignored mcount sections'
1916         @echo  '  make W=n   [targets] Enable extra gcc checks, n=1,2,3 where'
1917         @echo  '                1: warnings which may be relevant and do not occur too often'
1918         @echo  '                2: warnings which occur quite often but may still be relevant'
1919         @echo  '                3: more obscure warnings, can most likely be ignored'
1920         @echo  '                Multiple levels can be combined with W=12 or W=123'
1921         @echo  ''
1922         @echo  'Execute "make" or "make all" to build all targets marked with [*] '
1923         @echo  'For further info see the ./README file'
1924
1925 tests check:
1926         $(srctree)/test/run
1927
1928 qcheck:
1929         $(srctree)/test/run quick
1930
1931 # Documentation targets
1932 # ---------------------------------------------------------------------------
1933 DOC_TARGETS := xmldocs latexdocs pdfdocs htmldocs epubdocs cleandocs \
1934                linkcheckdocs dochelp refcheckdocs
1935 PHONY += $(DOC_TARGETS)
1936 $(DOC_TARGETS): scripts_basic FORCE
1937         $(Q)$(MAKE) $(build)=Documentation $@
1938
1939 endif #ifeq ($(config-targets),1)
1940 endif #ifeq ($(mixed-targets),1)
1941
1942 PHONY += checkstack ubootrelease ubootversion
1943
1944 checkstack:
1945         $(OBJDUMP) -d u-boot $$(find . -name u-boot-spl) | \
1946         $(PERL) $(src)/scripts/checkstack.pl $(ARCH)
1947
1948 ubootrelease:
1949         @echo "$(UBOOTVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))"
1950
1951 ubootversion:
1952         @echo $(UBOOTVERSION)
1953
1954 # Single targets
1955 # ---------------------------------------------------------------------------
1956 # Single targets are compatible with:
1957 # - build with mixed source and output
1958 # - build with separate output dir 'make O=...'
1959 # - external modules
1960 #
1961 #  target-dir => where to store outputfile
1962 #  build-dir  => directory in kernel source tree to use
1963
1964 ifeq ($(KBUILD_EXTMOD),)
1965         build-dir  = $(patsubst %/,%,$(dir $@))
1966         target-dir = $(dir $@)
1967 else
1968         zap-slash=$(filter-out .,$(patsubst %/,%,$(dir $@)))
1969         build-dir  = $(KBUILD_EXTMOD)$(if $(zap-slash),/$(zap-slash))
1970         target-dir = $(if $(KBUILD_EXTMOD),$(dir $<),$(dir $@))
1971 endif
1972
1973 %.s: %.c prepare scripts FORCE
1974         $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1975 %.i: %.c prepare scripts FORCE
1976         $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1977 %.o: %.c prepare scripts FORCE
1978         $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1979 %.lst: %.c prepare scripts FORCE
1980         $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1981 %.s: %.S prepare scripts FORCE
1982         $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1983 %.o: %.S prepare scripts FORCE
1984         $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1985 %.symtypes: %.c prepare scripts FORCE
1986         $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1987
1988 # Modules
1989 /: prepare scripts FORCE
1990         $(cmd_crmodverdir)
1991         $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \
1992         $(build)=$(build-dir)
1993 %/: prepare scripts FORCE
1994         $(cmd_crmodverdir)
1995         $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \
1996         $(build)=$(build-dir)
1997 %.ko: prepare scripts FORCE
1998         $(cmd_crmodverdir)
1999         $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1)   \
2000         $(build)=$(build-dir) $(@:.ko=.o)
2001         $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost
2002
2003 quiet_cmd_genenv = GENENV $@
2004 cmd_genenv = $(OBJCOPY) --dump-section .rodata.default_environment=$@ env/common.o; \
2005         sed --in-place -e 's/\x00/\x0A/g' $@
2006
2007 u-boot-initial-env: u-boot.bin
2008         $(call if_changed,genenv)
2009
2010 # Consistency checks
2011 # ---------------------------------------------------------------------------
2012
2013 PHONY += coccicheck
2014
2015 coccicheck:
2016         $(Q)$(CONFIG_SHELL) $(srctree)/scripts/$@
2017
2018 # FIXME Should go into a make.lib or something
2019 # ===========================================================================
2020
2021 quiet_cmd_rmdirs = $(if $(wildcard $(rm-dirs)),CLEAN   $(wildcard $(rm-dirs)))
2022       cmd_rmdirs = rm -rf $(rm-dirs)
2023
2024 quiet_cmd_rmfiles = $(if $(wildcard $(rm-files)),CLEAN   $(wildcard $(rm-files)))
2025       cmd_rmfiles = rm -f $(rm-files)
2026
2027 # read all saved command lines
2028
2029 targets := $(wildcard $(sort $(targets)))
2030 cmd_files := $(wildcard .*.cmd $(foreach f,$(targets),$(dir $(f)).$(notdir $(f)).cmd))
2031
2032 ifneq ($(cmd_files),)
2033   $(cmd_files): ;       # Do not try to update included dependency files
2034   include $(cmd_files)
2035 endif
2036
2037 endif   # skip-makefile
2038
2039 PHONY += FORCE
2040 FORCE:
2041
2042 # Declare the contents of the .PHONY variable as phony.  We keep that
2043 # information in a variable so we can use it in if_changed and friends.
2044 .PHONY: $(PHONY)