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_DM_I2C_COMPAT)$(CONFIG_SANDBOX),y)
 932         @echo >&2 "===================== WARNING ======================"
 933         @echo >&2 "This board uses CONFIG_DM_I2C_COMPAT. Please remove"
 934         @echo >&2 "(possibly in a subsequent patch in your series)"
 935         @echo >&2 "before sending patches to the mailing list."
 936         @echo >&2 "===================================================="
 937 endif
 938 ifeq ($(CONFIG_MMC),y)
 939 ifneq ($(CONFIG_DM_MMC)$(CONFIG_OF_CONTROL)$(CONFIG_BLK),yyy)
 940         @echo >&2 "===================== WARNING ======================"
 941         @echo >&2 "This board does not use CONFIG_DM_MMC. Please update"
 942         @echo >&2 "the board to use CONFIG_DM_MMC before the v2019.04 release."
 943         @echo >&2 "Failure to update by the deadline may result in board removal."
 944         @echo >&2 "See doc/driver-model/MIGRATION.txt for more info."
 945         @echo >&2 "===================================================="
 946 endif
 947 endif
 948 ifeq ($(CONFIG_USB),y)
 949 ifneq ($(CONFIG_DM_USB)$(CONFIG_OF_CONTROL)$(CONFIG_BLK),yyy)
 950         @echo >&2 "===================== WARNING ======================"
 951         @echo >&2 "This board does not use CONFIG_DM_USB. Please update"
 952         @echo >&2 "the board to use CONFIG_DM_USB before the v2019.07 release."
 953         @echo >&2 "Failure to update by the deadline may result in board removal."
 954         @echo >&2 "See doc/driver-model/MIGRATION.txt for more info."
 955         @echo >&2 "===================================================="
 956 endif
 957 endif
 958 ifeq ($(CONFIG_MVSATA_IDE),y)
 959         @echo >&2 "===================== WARNING ======================"
 960         @echo >&2 "This board does use CONFIG_MVSATA_IDE which is not"
 961         @echo >&2 "ported to driver-model (DM) yet. Please update the storage"
 962         @echo >&2 "controller driver to use CONFIG_AHCI before the v2019.07"
 963         @echo >&2 "release."
 964         @echo >&2 "Failure to update by the deadline may result in board removal."
 965         @echo >&2 "See doc/driver-model/MIGRATION.txt for more info."
 966         @echo >&2 "===================================================="
 967 endif
 968 ifeq ($(CONFIG_LIBATA),y)
 969 ifneq ($(CONFIG_AHCI),y)
 970         @echo >&2 "===================== WARNING ======================"
 971         @echo >&2 "This board does use CONFIG_LIBATA but has CONFIG_AHCI not"
 972         @echo >&2 "enabled. Please update the storage controller driver to use"
 973         @echo >&2 "CONFIG_AHCI before the v2019.07 release."
 974         @echo >&2 "Failure to update by the deadline may result in board removal."
 975         @echo >&2 "See doc/driver-model/MIGRATION.txt for more info."
 976         @echo >&2 "===================================================="
 977 endif
 978 endif
 979 ifeq ($(CONFIG_PCI),y)
 980 ifneq ($(CONFIG_DM_PCI),y)
 981         @echo >&2 "===================== WARNING ======================"
 982         @echo >&2 "This board does not use CONFIG_DM_PCI Please update"
 983         @echo >&2 "the board to use CONFIG_DM_PCI before the v2019.07 release."
 984         @echo >&2 "Failure to update by the deadline may result in board removal."
 985         @echo >&2 "See doc/driver-model/MIGRATION.txt for more info."
 986         @echo >&2 "===================================================="
 987 endif
 988 endif
 989 ifneq ($(CONFIG_LCD)$(CONFIG_VIDEO),)
 990 ifneq ($(CONFIG_DM_VIDEO),y)
 991         @echo >&2 "===================== WARNING ======================"
 992         @echo >&2 "This board does not use CONFIG_DM_VIDEO Please update"
 993         @echo >&2 "the board to use CONFIG_DM_VIDEO before the v2019.07 release."
 994         @echo >&2 "Failure to update by the deadline may result in board removal."
 995         @echo >&2 "See doc/driver-model/MIGRATION.txt for more info."
 996         @echo >&2 "===================================================="
 997 endif
 998 endif
 999 ifeq ($(CONFIG_OF_EMBED),y)
1000         @echo >&2 "===================== WARNING ======================"
1001         @echo >&2 "CONFIG_OF_EMBED is enabled. This option should only"
1002         @echo >&2 "be used for debugging purposes. Please use"
1003         @echo >&2 "CONFIG_OF_SEPARATE for boards in mainline."
1004         @echo >&2 "See doc/README.fdt-control for more info."
1005         @echo >&2 "===================================================="
1006 endif
1007 ifeq ($(CONFIG_SPI),y)
1008 ifneq ($(CONFIG_DM_SPI)$(CONFIG_OF_CONTROL),yy)
1009         @echo >&2 "===================== WARNING ======================"
1010         @echo >&2 "This board does not use CONFIG_DM_SPI. Please update"
1011         @echo >&2 "the board before v2019.04 for no dm conversion"
1012         @echo >&2 "and v2019.07 for partially dm converted drivers."
1013         @echo >&2 "Failure to update can lead to driver/board removal"
1014         @echo >&2 "See doc/driver-model/MIGRATION.txt for more info."
1015         @echo >&2 "===================================================="
1016 endif
1017 endif
1018 ifeq ($(CONFIG_SPI_FLASH),y)
1019 ifneq ($(CONFIG_DM_SPI_FLASH)$(CONFIG_OF_CONTROL),yy)
1020         @echo >&2 "===================== WARNING ======================"
1021         @echo >&2 "This board does not use CONFIG_DM_SPI_FLASH. Please update"
1022         @echo >&2 "the board to use CONFIG_SPI_FLASH before the v2019.07 release."
1023         @echo >&2 "Failure to update by the deadline may result in board removal."
1024         @echo >&2 "See doc/driver-model/MIGRATION.txt for more info."
1025         @echo >&2 "===================================================="
1026 endif
1027 endif
1028 ifneq ($(CONFIG_WATCHDOG)$(CONFIG_HW_WATCHDOG),)
1029 ifneq ($(CONFIG_WDT),y)
1030         @echo >&2 "===================== WARNING ======================"
1031         @echo >&2 "This board does not use CONFIG_WDT (DM watchdog support)."
1032         @echo >&2 "Please update the board to use CONFIG_WDT before the"
1033         @echo >&2 "v2019.10 release."
1034         @echo >&2 "Failure to update by the deadline may result in board removal."
1035         @echo >&2 "See doc/driver-model/MIGRATION.txt for more info."
1036         @echo >&2 "===================================================="
1037 endif
1038 endif
1039         @# Check that this build does not use CONFIG options that we do not
1040         @# know about unless they are in Kconfig. All the existing CONFIG
1041         @# options are whitelisted, so new ones should not be added.
1042         $(call cmd,cfgcheck,u-boot.cfg)
1043
1044 PHONY += dtbs
1045 dtbs: dts/dt.dtb
1046         @:
1047 dts/dt.dtb: u-boot
1048         $(Q)$(MAKE) $(build)=dts dtbs
1049
1050 quiet_cmd_copy = COPY    $@
1051       cmd_copy = cp $< $@
1052
1053 ifeq ($(CONFIG_MULTI_DTB_FIT),y)
1054
1055 ifeq ($(CONFIG_MULTI_DTB_FIT_LZO),y)
1056 FINAL_DTB_CONTAINER = fit-dtb.blob.lzo
1057 else ifeq ($(CONFIG_MULTI_DTB_FIT_GZIP),y)
1058 FINAL_DTB_CONTAINER = fit-dtb.blob.gz
1059 else
1060 FINAL_DTB_CONTAINER = fit-dtb.blob
1061 endif
1062
1063 fit-dtb.blob.gz: fit-dtb.blob
1064         @gzip -kf9 $< > $@
1065
1066 fit-dtb.blob.lzo: fit-dtb.blob
1067         @lzop -f9 $< > $@
1068
1069 fit-dtb.blob: dts/dt.dtb FORCE
1070         $(call if_changed,mkimage)
1071 ifneq ($(SOURCE_DATE_EPOCH),)
1072         touch -d @$(SOURCE_DATE_EPOCH) fit-dtb.blob
1073         chmod 0600 fit-dtb.blob
1074 endif
1075
1076 MKIMAGEFLAGS_fit-dtb.blob = -f auto -A $(ARCH) -T firmware -C none -O u-boot \
1077         -a 0 -e 0 -E \
1078         $(patsubst %,-b arch/$(ARCH)/dts/%.dtb,$(subst ",,$(CONFIG_OF_LIST))) -d /dev/null
1079
1080 ifneq ($(EXT_DTB),)
1081 u-boot-fit-dtb.bin: u-boot-nodtb.bin $(EXT_DTB)
1082                 $(call if_changed,cat)
1083 else
1084 u-boot-fit-dtb.bin: u-boot-nodtb.bin $(FINAL_DTB_CONTAINER)
1085         $(call if_changed,cat)
1086 endif
1087
1088 u-boot.bin: u-boot-fit-dtb.bin FORCE
1089         $(call if_changed,copy)
1090
1091 u-boot-dtb.bin: u-boot-nodtb.bin dts/dt.dtb FORCE
1092         $(call if_changed,cat)
1093
1094 else ifeq ($(CONFIG_OF_SEPARATE),y)
1095 u-boot-dtb.bin: u-boot-nodtb.bin dts/dt.dtb FORCE
1096         $(call if_changed,cat)
1097
1098 u-boot.bin: u-boot-dtb.bin FORCE
1099         $(call if_changed,copy)
1100 else
1101 u-boot.bin: u-boot-nodtb.bin FORCE
1102         $(call if_changed,copy)
1103 endif
1104
1105 %.imx: %.bin
1106         $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@
1107         $(BOARD_SIZE_CHECK)
1108
1109 %.vyb: %.imx
1110         $(Q)$(MAKE) $(build)=arch/arm/cpu/armv7/vf610 $@
1111
1112 quiet_cmd_copy = COPY    $@
1113       cmd_copy = cp $< $@
1114
1115 u-boot.dtb: dts/dt.dtb
1116         $(call cmd,copy)
1117
1118 OBJCOPYFLAGS_u-boot.hex := -O ihex
1119
1120 OBJCOPYFLAGS_u-boot.srec := -O srec
1121
1122 u-boot.hex u-boot.srec: u-boot FORCE
1123         $(call if_changed,objcopy)
1124
1125 OBJCOPYFLAGS_u-boot-elf.srec := $(OBJCOPYFLAGS_u-boot.srec)
1126
1127 u-boot-elf.srec: u-boot.elf FORCE
1128         $(call if_changed,objcopy)
1129
1130 OBJCOPYFLAGS_u-boot-spl.srec = $(OBJCOPYFLAGS_u-boot.srec)
1131
1132 spl/u-boot-spl.srec: spl/u-boot-spl FORCE
1133         $(call if_changed,objcopy)
1134
1135 %.scif: %.srec
1136         $(Q)$(MAKE) $(build)=arch/arm/mach-rmobile $@
1137
1138 OBJCOPYFLAGS_u-boot-nodtb.bin := -O binary \
1139                 $(if $(CONFIG_X86_16BIT_INIT),-R .start16 -R .resetvec) \
1140                 $(if $(CONFIG_MPC85XX_HAVE_RESET_VECTOR),-R .bootpg -R .resetvec)
1141
1142 OBJCOPYFLAGS_u-boot-spl.hex = $(OBJCOPYFLAGS_u-boot.hex)
1143
1144 spl/u-boot-spl.hex: spl/u-boot-spl FORCE
1145         $(call if_changed,objcopy)
1146
1147 binary_size_check: u-boot-nodtb.bin FORCE
1148         @file_size=$(shell wc -c u-boot-nodtb.bin | awk '{print $$1}') ; \
1149         map_size=$(shell cat u-boot.map | \
1150                 awk '/_image_copy_start/ {start = $$1} /_image_binary_end/ {end = $$1} END {if (start != "" && end != "") print "ibase=16; " toupper(end) " - " toupper(start)}' \
1151                 | sed 's/0X//g' \
1152                 | bc); \
1153         if [ "" != "$$map_size" ]; then \
1154                 if test $$map_size -ne $$file_size; then \
1155                         echo "u-boot.map shows a binary size of $$map_size" >&2 ; \
1156                         echo "  but u-boot-nodtb.bin shows $$file_size" >&2 ; \
1157                         exit 1; \
1158                 fi \
1159         fi
1160
1161 ifneq ($(CONFIG_SYS_INIT_SP_BSS_OFFSET),)
1162 ifneq ($(CONFIG_SYS_MALLOC_F_LEN),)
1163 subtract_sys_malloc_f_len = space=$$(($${space} - $(CONFIG_SYS_MALLOC_F_LEN)))
1164 else
1165 subtract_sys_malloc_f_len = true
1166 endif
1167 # The 1/4 margin below is somewhat arbitrary. The likely initial SP usage is
1168 # so low that the DTB could probably use 90%+ of the available space, for
1169 # current values of CONFIG_SYS_INIT_SP_BSS_OFFSET at least. However, let's be
1170 # safe for now and tweak this later if space becomes tight.
1171 # A rejected alternative would be to check that some absolute minimum stack
1172 # space was available. However, since CONFIG_SYS_INIT_SP_BSS_OFFSET is
1173 # deliberately build-specific, to take account of build-to-build stack usage
1174 # differences due to different feature sets, there is no common absolute value
1175 # to check against.
1176 init_sp_bss_offset_check: u-boot.dtb FORCE
1177         @dtb_size=$(shell wc -c u-boot.dtb | awk '{print $$1}') ; \
1178         space=$(CONFIG_SYS_INIT_SP_BSS_OFFSET) ; \
1179         $(subtract_sys_malloc_f_len) ; \
1180         quarter_space=$$(($${space} / 4)) ; \
1181         if [ $${dtb_size} -gt $${quarter_space} ]; then \
1182                 echo "u-boot.dtb is larger than 1 quarter of " >&2 ; \
1183                 echo "(CONFIG_SYS_INIT_SP_BSS_OFFSET - CONFIG_SYS_MALLOC_F_LEN)" >&2 ; \
1184                 exit 1 ; \
1185         fi
1186 endif
1187
1188 u-boot-nodtb.bin: u-boot FORCE
1189         $(call if_changed,objcopy)
1190         $(call DO_STATIC_RELA,$<,$@,$(CONFIG_SYS_TEXT_BASE))
1191         $(BOARD_SIZE_CHECK)
1192
1193 u-boot.ldr:     u-boot
1194                 $(CREATE_LDR_ENV)
1195                 $(LDR) -T $(CONFIG_CPU) -c $@ $< $(LDR_FLAGS)
1196                 $(BOARD_SIZE_CHECK)
1197
1198 # binman
1199 # ---------------------------------------------------------------------------
1200 # Use 'make BINMAN_DEBUG=1' to enable debugging
1201 quiet_cmd_binman = BINMAN  $@
1202 cmd_binman = $(srctree)/tools/binman/binman -u -d u-boot.dtb -O . -m \
1203                 -I . -I $(srctree) -I $(srctree)/board/$(BOARDDIR) \
1204                 $(if $(BINMAN_DEBUG),-D) $(BINMAN_$(@F)) $<
1205
1206 OBJCOPYFLAGS_u-boot.ldr.hex := -I binary -O ihex
1207
1208 OBJCOPYFLAGS_u-boot.ldr.srec := -I binary -O srec
1209
1210 u-boot.ldr.hex u-boot.ldr.srec: u-boot.ldr FORCE
1211         $(call if_changed,objcopy)
1212
1213 #
1214 # U-Boot entry point, needed for booting of full-blown U-Boot
1215 # from the SPL U-Boot version.
1216 #
1217 ifndef CONFIG_SYS_UBOOT_START
1218 CONFIG_SYS_UBOOT_START := 0
1219 endif
1220
1221 # Boards with more complex image requirments can provide an .its source file
1222 # or a generator script
1223 ifneq ($(CONFIG_SPL_FIT_SOURCE),"")
1224 U_BOOT_ITS = $(subst ",,$(CONFIG_SPL_FIT_SOURCE))
1225 else
1226 ifneq ($(CONFIG_SPL_FIT_GENERATOR),"")
1227 U_BOOT_ITS := u-boot.its
1228 ifeq ($(CONFIG_SPL_FIT_GENERATOR),"arch/arm/mach-imx/mkimage_fit_atf.sh")
1229 U_BOOT_ITS_DEPS += u-boot-nodtb.bin
1230 endif
1231 ifeq ($(CONFIG_SPL_FIT_GENERATOR),"arch/arm/mach-rockchip/make_fit_atf.py")
1232 U_BOOT_ITS_DEPS += u-boot
1233 endif
1234 $(U_BOOT_ITS): $(U_BOOT_ITS_DEPS) FORCE
1235         $(srctree)/$(CONFIG_SPL_FIT_GENERATOR) \
1236         $(patsubst %,arch/$(ARCH)/dts/%.dtb,$(subst ",,$(CONFIG_OF_LIST))) > $@
1237 endif
1238 endif
1239
1240 ifdef CONFIG_SPL_LOAD_FIT
1241 MKIMAGEFLAGS_u-boot.img = -f auto -A $(ARCH) -T firmware -C none -O u-boot \
1242         -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \
1243         -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board" -E \
1244         $(patsubst %,-b arch/$(ARCH)/dts/%.dtb,$(subst ",,$(CONFIG_OF_LIST)))
1245 else
1246 MKIMAGEFLAGS_u-boot.img = -A $(ARCH) -T firmware -C none -O u-boot \
1247         -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \
1248         -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board"
1249 MKIMAGEFLAGS_u-boot-ivt.img = -A $(ARCH) -T firmware_ivt -C none -O u-boot \
1250         -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \
1251         -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board"
1252 u-boot-ivt.img: MKIMAGEOUTPUT = u-boot-ivt.img.log
1253 CLEAN_FILES += u-boot-ivt.img.log u-boot-dtb.imx.log SPL.log u-boot.imx.log
1254 endif
1255
1256 MKIMAGEFLAGS_u-boot-dtb.img = $(MKIMAGEFLAGS_u-boot.img)
1257
1258 MKIMAGEFLAGS_u-boot.kwb = -n $(srctree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%) \
1259         -T kwbimage -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE)
1260
1261 MKIMAGEFLAGS_u-boot-spl.kwb = -n $(srctree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%) \
1262         -T kwbimage -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE) \
1263         $(if $(KEYDIR),-k $(KEYDIR))
1264
1265 MKIMAGEFLAGS_u-boot.pbl = -n $(srctree)/$(CONFIG_SYS_FSL_PBL_RCW:"%"=%) \
1266                 -R $(srctree)/$(CONFIG_SYS_FSL_PBL_PBI:"%"=%) -T pblimage
1267
1268 u-boot-dtb.img u-boot.img u-boot.kwb u-boot.pbl u-boot-ivt.img: \
1269                 $(if $(CONFIG_SPL_LOAD_FIT),u-boot-nodtb.bin dts/dt.dtb,u-boot.bin) FORCE
1270         $(call if_changed,mkimage)
1271         $(BOARD_SIZE_CHECK)
1272
1273 ifeq ($(CONFIG_SPL_LOAD_FIT_FULL),y)
1274 MKIMAGEFLAGS_u-boot.itb =
1275 else
1276 MKIMAGEFLAGS_u-boot.itb = -E
1277 endif
1278
1279 u-boot.itb: u-boot-nodtb.bin dts/dt.dtb $(U_BOOT_ITS) FORCE
1280         $(call if_changed,mkfitimage)
1281         $(BOARD_SIZE_CHECK)
1282
1283 u-boot-spl.kwb: u-boot.img spl/u-boot-spl.bin FORCE
1284         $(call if_changed,mkimage)
1285
1286 u-boot.sha1:    u-boot.bin
1287                 tools/ubsha1 u-boot.bin
1288
1289 u-boot.dis:     u-boot
1290                 $(OBJDUMP) -d $< > $@
1291
1292 ifneq ($(CONFIG_SPL_PAYLOAD),)
1293 SPL_PAYLOAD := $(CONFIG_SPL_PAYLOAD:"%"=%)
1294 else
1295 SPL_PAYLOAD := u-boot.bin
1296 endif
1297
1298 SPL_IMAGE := $(CONFIG_SPL_IMAGE:"%"=%)
1299
1300 OBJCOPYFLAGS_u-boot-with-spl.bin = -I binary -O binary \
1301                                    --pad-to=$(CONFIG_SPL_PAD_TO)
1302 u-boot-with-spl.bin: $(SPL_IMAGE) $(SPL_PAYLOAD) FORCE
1303         $(call if_changed,pad_cat)
1304
1305 ifeq ($(CONFIG_ARCH_LPC32XX)$(CONFIG_SPL),yy)
1306 MKIMAGEFLAGS_lpc32xx-spl.img = -T lpc32xximage -a $(CONFIG_SPL_TEXT_BASE)
1307
1308 lpc32xx-spl.img: spl/u-boot-spl.bin FORCE
1309         $(call if_changed,mkimage)
1310
1311 OBJCOPYFLAGS_lpc32xx-boot-0.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO)
1312
1313 lpc32xx-boot-0.bin: lpc32xx-spl.img FORCE
1314         $(call if_changed,objcopy)
1315
1316 OBJCOPYFLAGS_lpc32xx-boot-1.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO)
1317
1318 lpc32xx-boot-1.bin: lpc32xx-spl.img FORCE
1319         $(call if_changed,objcopy)
1320
1321 lpc32xx-full.bin: lpc32xx-boot-0.bin lpc32xx-boot-1.bin u-boot.img FORCE
1322         $(call if_changed,cat)
1323
1324 CLEAN_FILES += lpc32xx-*
1325 endif
1326
1327 OBJCOPYFLAGS_u-boot-with-tpl.bin = -I binary -O binary \
1328                                    --pad-to=$(CONFIG_TPL_PAD_TO)
1329 tpl/u-boot-with-tpl.bin: tpl/u-boot-tpl.bin u-boot.bin FORCE
1330         $(call if_changed,pad_cat)
1331
1332 SPL: spl/u-boot-spl.bin FORCE
1333         $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@
1334
1335 ifeq ($(CONFIG_ARCH_IMX8M)$(CONFIG_ARCH_IMX8), y)
1336 flash.bin: spl/u-boot-spl.bin u-boot.itb FORCE
1337         $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@
1338 endif
1339
1340 u-boot-with-spl.imx u-boot-with-nand-spl.imx: SPL u-boot.bin FORCE
1341         $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@
1342
1343 MKIMAGEFLAGS_u-boot.ubl = -n $(UBL_CONFIG) -T ublimage -e $(CONFIG_SYS_TEXT_BASE)
1344
1345 u-boot.ubl: u-boot-with-spl.bin FORCE
1346         $(call if_changed,mkimage)
1347
1348 MKIMAGEFLAGS_u-boot-spl.ais = -s -n $(if $(CONFIG_AIS_CONFIG_FILE), \
1349         $(srctree)/$(CONFIG_AIS_CONFIG_FILE:"%"=%),"/dev/null") \
1350         -T aisimage -e $(CONFIG_SPL_TEXT_BASE)
1351 spl/u-boot-spl.ais: spl/u-boot-spl.bin FORCE
1352         $(call if_changed,mkimage)
1353
1354 OBJCOPYFLAGS_u-boot.ais = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO)
1355 u-boot.ais: spl/u-boot-spl.ais u-boot.img FORCE
1356         $(call if_changed,pad_cat)
1357
1358 u-boot-signed.sb: u-boot.bin spl/u-boot-spl.bin
1359         $(Q)$(MAKE) $(build)=arch/arm/cpu/arm926ejs/mxs u-boot-signed.sb
1360 u-boot.sb: u-boot.bin spl/u-boot-spl.bin
1361         $(Q)$(MAKE) $(build)=arch/arm/cpu/arm926ejs/mxs u-boot.sb
1362
1363 # On x600 (SPEAr600) U-Boot is appended to U-Boot SPL.
1364 # Both images are created using mkimage (crc etc), so that the ROM
1365 # bootloader can check its integrity. Padding needs to be done to the
1366 # SPL image (with mkimage header) and not the binary. Otherwise the resulting image
1367 # which is loaded/copied by the ROM bootloader to SRAM doesn't fit.
1368 # The resulting image containing both U-Boot images is called u-boot.spr
1369 MKIMAGEFLAGS_u-boot-spl.img = -A $(ARCH) -T firmware -C none \
1370         -a $(CONFIG_SPL_TEXT_BASE) -e $(CONFIG_SPL_TEXT_BASE) -n XLOADER
1371 spl/u-boot-spl.img: spl/u-boot-spl.bin FORCE
1372         $(call if_changed,mkimage)
1373
1374 OBJCOPYFLAGS_u-boot.spr = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) \
1375                           --gap-fill=0xff
1376 u-boot.spr: spl/u-boot-spl.img u-boot.img FORCE
1377         $(call if_changed,pad_cat)
1378
1379 ifneq ($(CONFIG_ARCH_SOCFPGA),)
1380 quiet_cmd_socboot = SOCBOOT $@
1381 cmd_socboot = cat       spl/u-boot-spl.sfp spl/u-boot-spl.sfp   \
1382                         spl/u-boot-spl.sfp spl/u-boot-spl.sfp   \
1383                         u-boot.img > $@ || rm -f $@
1384 u-boot-with-spl.sfp: spl/u-boot-spl.sfp u-boot.img FORCE
1385         $(call if_changed,socboot)
1386 endif
1387
1388 ifeq ($(CONFIG_MPC85xx)$(CONFIG_OF_SEPARATE),yy)
1389 u-boot-with-dtb.bin: u-boot.bin u-boot.dtb \
1390         $(if $(CONFIG_MPC85XX_HAVE_RESET_VECTOR), u-boot-br.bin) FORCE
1391         $(call if_changed,binman)
1392
1393 ifeq ($(CONFIG_MPC85XX_HAVE_RESET_VECTOR),y)
1394 OBJCOPYFLAGS_u-boot-br.bin := -O binary -j .bootpg -j .resetvec
1395 u-boot-br.bin: u-boot FORCE
1396         $(call if_changed,objcopy)
1397 endif
1398 endif
1399
1400 # x86 uses a large ROM. We fill it with 0xff, put the 16-bit stuff (including
1401 # reset vector) at the top, Intel ME descriptor at the bottom, and U-Boot in
1402 # the middle. This is handled by binman based on an image description in the
1403 # board's device tree.
1404 ifneq ($(CONFIG_X86_RESET_VECTOR),)
1405 rom: u-boot.rom FORCE
1406
1407 refcode.bin: $(srctree)/board/$(BOARDDIR)/refcode.bin FORCE
1408         $(call if_changed,copy)
1409
1410 quiet_cmd_ldr = LD      $@
1411 cmd_ldr = $(LD) $(LDFLAGS_$(@F)) \
1412                $(filter-out FORCE,$^) -o $@
1413
1414 u-boot.rom: u-boot-x86-16bit.bin u-boot.bin \
1415                 $(if $(CONFIG_SPL_X86_16BIT_INIT),spl/u-boot-spl.bin) \
1416                 $(if $(CONFIG_TPL_X86_16BIT_INIT),tpl/u-boot-tpl.bin) \
1417                 $(if $(CONFIG_HAVE_REFCODE),refcode.bin) FORCE
1418         $(call if_changed,binman)
1419
1420 OBJCOPYFLAGS_u-boot-x86-16bit.bin := -O binary -j .start16 -j .resetvec
1421 u-boot-x86-16bit.bin: u-boot FORCE
1422         $(call if_changed,objcopy)
1423 endif
1424
1425 ifneq ($(CONFIG_ARCH_SUNXI),)
1426 ifeq ($(CONFIG_ARM64),)
1427 u-boot-sunxi-with-spl.bin: spl/sunxi-spl.bin u-boot.img u-boot.dtb FORCE
1428         $(call if_changed,binman)
1429 else
1430 u-boot-sunxi-with-spl.bin: spl/sunxi-spl.bin u-boot.itb FORCE
1431         $(call if_changed,cat)
1432 endif
1433 endif
1434
1435 ifneq ($(CONFIG_TEGRA),)
1436 ifneq ($(CONFIG_BINMAN),)
1437 # Makes u-boot-dtb-tegra.bin u-boot-tegra.bin u-boot-nodtb-tegra.bin
1438 %-dtb-tegra.bin %-tegra.bin %-nodtb-tegra.bin: \
1439                 spl/%-spl %.bin FORCE
1440         $(call if_changed,binman)
1441 else
1442 OBJCOPYFLAGS_u-boot-nodtb-tegra.bin = -O binary --pad-to=$(CONFIG_SYS_TEXT_BASE)
1443 u-boot-nodtb-tegra.bin: spl/u-boot-spl u-boot-nodtb.bin FORCE
1444         $(call if_changed,pad_cat)
1445
1446 OBJCOPYFLAGS_u-boot-tegra.bin = -O binary --pad-to=$(CONFIG_SYS_TEXT_BASE)
1447 u-boot-tegra.bin: spl/u-boot-spl u-boot.bin FORCE
1448         $(call if_changed,pad_cat)
1449
1450 u-boot-dtb-tegra.bin: u-boot-tegra.bin FORCE
1451         $(call if_changed,copy)
1452 endif  # binman
1453 endif
1454
1455 OBJCOPYFLAGS_u-boot-app.efi := $(OBJCOPYFLAGS_EFI)
1456 u-boot-app.efi: u-boot FORCE
1457         $(call if_changed,zobjcopy)
1458
1459 u-boot.bin.o: u-boot.bin FORCE
1460         $(call if_changed,efipayload)
1461
1462 u-boot-payload.lds: $(LDSCRIPT_EFI) FORCE
1463         $(call if_changed_dep,cpp_lds)
1464
1465 # Rule to link the EFI payload which contains a stub and a U-Boot binary
1466 quiet_cmd_u-boot_payload ?= LD      $@
1467       cmd_u-boot_payload ?= $(LD) $(LDFLAGS_EFI_PAYLOAD) -o $@ \
1468       -T u-boot-payload.lds arch/x86/cpu/call32.o \
1469       lib/efi/efi.o lib/efi/efi_stub.o u-boot.bin.o \
1470       $(addprefix arch/$(ARCH)/lib/,$(EFISTUB))
1471
1472 u-boot-payload: u-boot.bin.o u-boot-payload.lds FORCE
1473         $(call if_changed,u-boot_payload)
1474
1475 OBJCOPYFLAGS_u-boot-payload.efi := $(OBJCOPYFLAGS_EFI)
1476 u-boot-payload.efi: u-boot-payload FORCE
1477         $(call if_changed,zobjcopy)
1478
1479 u-boot-img.bin: spl/u-boot-spl.bin u-boot.img FORCE
1480         $(call if_changed,cat)
1481
1482 #Add a target to create boot binary having SPL binary in PBI format
1483 #concatenated with u-boot binary. It is need by PowerPC SoC having
1484 #internal SRAM <= 512KB.
1485 MKIMAGEFLAGS_u-boot-spl.pbl = -n $(srctree)/$(CONFIG_SYS_FSL_PBL_RCW:"%"=%) \
1486                 -R $(srctree)/$(CONFIG_SYS_FSL_PBL_PBI:"%"=%) -T pblimage \
1487                 -A $(ARCH) -a $(CONFIG_SPL_TEXT_BASE)
1488
1489 spl/u-boot-spl.pbl: spl/u-boot-spl.bin FORCE
1490         $(call if_changed,mkimage)
1491
1492 ifeq ($(ARCH),arm)
1493 UBOOT_BINLOAD := u-boot.img
1494 else
1495 ifeq ($(CONFIG_MPC85xx)$(CONFIG_OF_SEPARATE),yy)
1496 UBOOT_BINLOAD := u-boot-with-dtb.bin
1497 else
1498 UBOOT_BINLOAD := u-boot.bin
1499 endif
1500 endif
1501
1502 OBJCOPYFLAGS_u-boot-with-spl-pbl.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) \
1503                           --gap-fill=0xff
1504
1505 u-boot-with-spl-pbl.bin: spl/u-boot-spl.pbl $(UBOOT_BINLOAD) FORCE
1506         $(call if_changed,pad_cat)
1507
1508 # PPC4xx needs the SPL at the end of the image, since the reset vector
1509 # is located at 0xfffffffc. So we can't use the "u-boot-img.bin" target
1510 # and need to introduce a new build target with the full blown U-Boot
1511 # at the start padded up to the start of the SPL image. And then concat
1512 # the SPL image to the end.
1513
1514 OBJCOPYFLAGS_u-boot-img-spl-at-end.bin := -I binary -O binary \
1515         --pad-to=$(CONFIG_UBOOT_PAD_TO) --gap-fill=0xff
1516 u-boot-img-spl-at-end.bin: u-boot.img spl/u-boot-spl.bin FORCE
1517         $(call if_changed,pad_cat)
1518
1519 # Create a new ELF from a raw binary file.
1520 ifndef PLATFORM_ELFENTRY
1521   PLATFORM_ELFENTRY = "_start"
1522 endif
1523 quiet_cmd_u-boot-elf ?= LD      $@
1524         cmd_u-boot-elf ?= $(LD) u-boot-elf.o -o $@ \
1525         --defsym=$(PLATFORM_ELFENTRY)=$(CONFIG_SYS_TEXT_BASE) \
1526         -Ttext=$(CONFIG_SYS_TEXT_BASE)
1527 u-boot.elf: u-boot.bin
1528         $(Q)$(OBJCOPY) -I binary $(PLATFORM_ELFFLAGS) $< u-boot-elf.o
1529         $(call if_changed,u-boot-elf)
1530
1531 # MediaTek's ARM-based u-boot needs a header to contains its load address
1532 # which is parsed by the BootROM.
1533 # If the SPL build is enabled, the header will be added to the spl binary,
1534 # and the spl binary and the u-boot.img will be combined into one file.
1535 # Otherwise the header will be added to the u-boot.bin directly.
1536
1537 ifeq ($(CONFIG_SPL),y)
1538 spl/u-boot-spl-mtk.bin: spl/u-boot-spl
1539
1540 u-boot-mtk.bin: u-boot.dtb u-boot.img spl/u-boot-spl-mtk.bin FORCE
1541         $(call if_changed,binman)
1542 else
1543 MKIMAGEFLAGS_u-boot-mtk.bin = -T mtk_image \
1544         -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE) \
1545         -n "$(patsubst "%",%,$(CONFIG_MTK_BROM_HEADER_INFO))"
1546
1547 u-boot-mtk.bin: u-boot.bin FORCE
1548         $(call if_changed,mkimage)
1549 endif
1550
1551 ARCH_POSTLINK := $(wildcard $(srctree)/arch/$(ARCH)/Makefile.postlink)
1552
1553 # Rule to link u-boot
1554 # May be overridden by arch/$(ARCH)/config.mk
1555 quiet_cmd_u-boot__ ?= LD      $@
1556       cmd_u-boot__ ?= $(LD) $(LDFLAGS) $(LDFLAGS_u-boot) -o $@ \
1557       -T u-boot.lds $(u-boot-init)                             \
1558       --start-group $(u-boot-main) --end-group                 \
1559       $(PLATFORM_LIBS) -Map u-boot.map;                        \
1560       $(if $(ARCH_POSTLINK), $(MAKE) -f $(ARCH_POSTLINK) $@, true)
1561
1562 quiet_cmd_smap = GEN     common/system_map.o
1563 cmd_smap = \
1564         smap=`$(call SYSTEM_MAP,u-boot) | \
1565                 awk '$$2 ~ /[tTwW]/ {printf $$1 $$3 "\\\\000"}'` ; \
1566         $(CC) $(c_flags) -DSYSTEM_MAP="\"$${smap}\"" \
1567                 -c $(srctree)/common/system_map.c -o common/system_map.o
1568
1569 u-boot: $(u-boot-init) $(u-boot-main) u-boot.lds FORCE
1570         +$(call if_changed,u-boot__)
1571 ifeq ($(CONFIG_KALLSYMS),y)
1572         $(call cmd,smap)
1573         $(call cmd,u-boot__) common/system_map.o
1574 endif
1575
1576 ifeq ($(CONFIG_RISCV),y)
1577         @tools/prelink-riscv $@ 0
1578 endif
1579
1580 quiet_cmd_sym ?= SYM     $@
1581       cmd_sym ?= $(OBJDUMP) -t $< > $@
1582 u-boot.sym: u-boot FORCE
1583         $(call if_changed,sym)
1584
1585 # The actual objects are generated when descending,
1586 # make sure no implicit rule kicks in
1587 $(sort $(u-boot-init) $(u-boot-main)): $(u-boot-dirs) ;
1588
1589 # Handle descending into subdirectories listed in $(vmlinux-dirs)
1590 # Preset locale variables to speed up the build process. Limit locale
1591 # tweaks to this spot to avoid wrong language settings when running
1592 # make menuconfig etc.
1593 # Error messages still appears in the original language
1594
1595 PHONY += $(u-boot-dirs)
1596 $(u-boot-dirs): prepare scripts
1597         $(Q)$(MAKE) $(build)=$@
1598
1599 tools: prepare
1600 # The "tools" are needed early
1601 $(filter-out tools, $(u-boot-dirs)): tools
1602 # The "examples" conditionally depend on U-Boot (say, when USE_PRIVATE_LIBGCC
1603 # is "yes"), so compile examples after U-Boot is compiled.
1604 examples: $(filter-out examples, $(u-boot-dirs))
1605
1606 define filechk_uboot.release
1607         echo "$(UBOOTVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))"
1608 endef
1609
1610 # Store (new) UBOOTRELEASE string in include/config/uboot.release
1611 include/config/uboot.release: include/config/auto.conf FORCE
1612         $(call filechk,uboot.release)
1613
1614
1615 # Things we need to do before we recursively start building the kernel
1616 # or the modules are listed in "prepare".
1617 # A multi level approach is used. prepareN is processed before prepareN-1.
1618 # archprepare is used in arch Makefiles and when processed asm symlink,
1619 # version.h and scripts_basic is processed / created.
1620
1621 # Listed in dependency order
1622 PHONY += prepare archprepare prepare0 prepare1 prepare2 prepare3
1623
1624 # prepare3 is used to check if we are building in a separate output directory,
1625 # and if so do:
1626 # 1) Check that make has not been executed in the kernel src $(srctree)
1627 prepare3: include/config/uboot.release
1628 ifneq ($(KBUILD_SRC),)
1629         @$(kecho) '  Using $(srctree) as source for U-Boot'
1630         $(Q)if [ -f $(srctree)/.config -o -d $(srctree)/include/config ]; then \
1631                 echo >&2 "  $(srctree) is not clean, please run 'make mrproper'"; \
1632                 echo >&2 "  in the '$(srctree)' directory.";\
1633                 /bin/false; \
1634         fi;
1635 endif
1636
1637 # prepare2 creates a makefile if using a separate output directory
1638 prepare2: prepare3 outputmakefile cfg
1639
1640 prepare1: prepare2 $(version_h) $(timestamp_h) \
1641                    include/config/auto.conf
1642 ifeq ($(wildcard $(LDSCRIPT)),)
1643         @echo >&2 "  Could not find linker script."
1644         @/bin/false
1645 endif
1646
1647 ifeq ($(CONFIG_USE_DEFAULT_ENV_FILE),y)
1648 prepare1: $(defaultenv_h)
1649 endif
1650
1651 archprepare: prepare1 scripts_basic
1652
1653 prepare0: archprepare FORCE
1654         $(Q)$(MAKE) $(build)=.
1655
1656 # All the preparing..
1657 prepare: prepare0
1658
1659 # Generate some files
1660 # ---------------------------------------------------------------------------
1661
1662 define filechk_version.h
1663         (echo \#define PLAIN_VERSION \"$(UBOOTRELEASE)\"; \
1664         echo \#define U_BOOT_VERSION \"U-Boot \" PLAIN_VERSION; \
1665         echo \#define CC_VERSION_STRING \"$$(LC_ALL=C $(CC) --version | head -n 1)\"; \
1666         echo \#define LD_VERSION_STRING \"$$(LC_ALL=C $(LD) --version | head -n 1)\"; )
1667 endef
1668
1669 # The SOURCE_DATE_EPOCH mechanism requires a date that behaves like GNU date.
1670 # The BSD date on the other hand behaves different and would produce errors
1671 # with the misused '-d' switch.  Respect that and search a working date with
1672 # well known pre- and suffixes for the GNU variant of date.
1673 define filechk_timestamp.h
1674         (if test -n "$${SOURCE_DATE_EPOCH}"; then \
1675                 SOURCE_DATE="@$${SOURCE_DATE_EPOCH}"; \
1676                 DATE=""; \
1677                 for date in gdate date.gnu date; do \
1678                         $${date} -u -d "$${SOURCE_DATE}" >/dev/null 2>&1 && DATE="$${date}"; \
1679                 done; \
1680                 if test -n "$${DATE}"; then \
1681                         LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_DATE "%b %d %C%y"'; \
1682                         LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_TIME "%T"'; \
1683                         LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_TZ "%z"'; \
1684                         LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_DMI_DATE "%m/%d/%Y"'; \
1685                         LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_BUILD_DATE 0x%Y%m%d'; \
1686                 else \
1687                         return 42; \
1688                 fi; \
1689         else \
1690                 LC_ALL=C date +'#define U_BOOT_DATE "%b %d %C%y"'; \
1691                 LC_ALL=C date +'#define U_BOOT_TIME "%T"'; \
1692                 LC_ALL=C date +'#define U_BOOT_TZ "%z"'; \
1693                 LC_ALL=C date +'#define U_BOOT_DMI_DATE "%m/%d/%Y"'; \
1694                 LC_ALL=C date +'#define U_BOOT_BUILD_DATE 0x%Y%m%d'; \
1695         fi)
1696 endef
1697
1698 define filechk_defaultenv.h
1699         (grep -v '^#' | \
1700          grep -v '^$$' | \
1701          tr '\n' '\0' | \
1702          sed -e 's/\\\x0/\n/' | \
1703          xxd -i ; echo ", 0x00" ; )
1704 endef
1705
1706 $(version_h): include/config/uboot.release FORCE
1707         $(call filechk,version.h)
1708
1709 $(timestamp_h): $(srctree)/Makefile FORCE
1710         $(call filechk,timestamp.h)
1711
1712 $(defaultenv_h): $(CONFIG_DEFAULT_ENV_FILE:"%"=%) FORCE
1713         $(call filechk,defaultenv.h)
1714
1715 # ---------------------------------------------------------------------------
1716 quiet_cmd_cpp_lds = LDS     $@
1717 cmd_cpp_lds = $(CPP) -Wp,-MD,$(depfile) $(cpp_flags) $(LDPPFLAGS) \
1718                 -D__ASSEMBLY__ -x assembler-with-cpp -std=c99 -P -o $@ $<
1719
1720 u-boot.lds: $(LDSCRIPT) prepare FORCE
1721         $(call if_changed_dep,cpp_lds)
1722
1723 spl/u-boot-spl.bin: spl/u-boot-spl
1724         @:
1725         $(SPL_SIZE_CHECK)
1726
1727 spl/u-boot-spl: tools prepare \
1728                 $(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_SPL_OF_PLATDATA),dts/dt.dtb) \
1729                 $(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_TPL_OF_PLATDATA),dts/dt.dtb)
1730         $(Q)$(MAKE) obj=spl -f $(srctree)/scripts/Makefile.spl all
1731
1732 spl/sunxi-spl.bin: spl/u-boot-spl
1733         @:
1734
1735 spl/sunxi-spl-with-ecc.bin: spl/sunxi-spl.bin
1736         @:
1737
1738 spl/u-boot-spl.sfp: spl/u-boot-spl
1739         @:
1740
1741 spl/boot.bin: spl/u-boot-spl
1742         @:
1743
1744 tpl/u-boot-tpl.bin: tools prepare \
1745                 $(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_SPL_OF_PLATDATA),dts/dt.dtb)
1746         $(Q)$(MAKE) obj=tpl -f $(srctree)/scripts/Makefile.spl all
1747
1748 TAG_SUBDIRS := $(patsubst %,$(srctree)/%,$(u-boot-dirs) include)
1749
1750 FIND := find
1751 FINDFLAGS := -L
1752
1753 tags ctags:
1754                 ctags -w -o ctags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \
1755                                                 -name '*.[chS]' -print`
1756                 ln -s ctags tags
1757
1758 etags:
1759                 etags -a -o etags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \
1760                                                 -name '*.[chS]' -print`
1761 cscope:
1762                 $(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) -name '*.[chS]' -print > \
1763                                                 cscope.files
1764                 cscope -b -q -k
1765
1766 SYSTEM_MAP = \
1767                 $(NM) $1 | \
1768                 grep -v '\(compiled\)\|\(\.o$$\)\|\( [aUw] \)\|\(\.\.ng$$\)\|\(LASH[RL]DI\)' | \
1769                 LC_ALL=C sort
1770 System.map:     u-boot
1771                 @$(call SYSTEM_MAP,$<) > $@
1772
1773 #########################################################################
1774
1775 # ARM relocations should all be R_ARM_RELATIVE (32-bit) or
1776 # R_AARCH64_RELATIVE (64-bit).
1777 checkarmreloc: u-boot
1778         @RELOC="`$(CROSS_COMPILE)readelf -r -W $< | cut -d ' ' -f 4 | \
1779                 grep R_A | sort -u`"; \
1780         if test "$$RELOC" != "R_ARM_RELATIVE" -a \
1781                  "$$RELOC" != "R_AARCH64_RELATIVE"; then \
1782                 echo "$< contains unexpected relocations: $$RELOC"; \
1783                 false; \
1784         fi
1785
1786 envtools: scripts_basic $(version_h) $(timestamp_h)
1787         $(Q)$(MAKE) $(build)=tools/env
1788
1789 tools-only: export TOOLS_ONLY=y
1790 tools-only: scripts_basic $(version_h) $(timestamp_h)
1791         $(Q)$(MAKE) $(build)=tools
1792
1793 tools-all: export HOST_TOOLS_ALL=y
1794 tools-all: envtools tools ;
1795
1796 cross_tools: export CROSS_BUILD_TOOLS=y
1797 cross_tools: tools ;
1798
1799 .PHONY : CHANGELOG
1800 CHANGELOG:
1801         git log --no-merges U-Boot-1_1_5.. | \
1802         unexpand -a | sed -e 's/\s\s*$$//' > $@
1803
1804 #########################################################################
1805
1806 ###
1807 # Cleaning is done on three levels.
1808 # make clean     Delete most generated files
1809 #                Leave enough to build external modules
1810 # make mrproper  Delete the current configuration, and all generated files
1811 # make distclean Remove editor backup files, patch leftover files and the like
1812
1813 # Directories & files removed with 'make clean'
1814 CLEAN_DIRS  += $(MODVERDIR) \
1815                $(foreach d, spl tpl, $(patsubst %,$d/%, \
1816                         $(filter-out include, $(shell ls -1 $d 2>/dev/null))))
1817
1818 CLEAN_FILES += include/bmp_logo.h include/bmp_logo_data.h \
1819                boot* u-boot* MLO* SPL System.map fit-dtb.blob*
1820
1821 # Directories & files removed with 'make mrproper'
1822 MRPROPER_DIRS  += include/config include/generated spl tpl \
1823                   .tmp_objdiff
1824 MRPROPER_FILES += .config .config.old include/autoconf.mk* include/config.h \
1825                   ctags etags tags TAGS cscope* GPATH GTAGS GRTAGS GSYMS \
1826                   drivers/video/fonts/*.S
1827
1828 # clean - Delete most, but leave enough to build external modules
1829 #
1830 clean: rm-dirs  := $(CLEAN_DIRS)
1831 clean: rm-files := $(CLEAN_FILES)
1832
1833 clean-dirs      := $(foreach f,$(u-boot-alldirs),$(if $(wildcard $(srctree)/$f/Makefile),$f))
1834
1835 clean-dirs      := $(addprefix _clean_, $(clean-dirs))
1836
1837 PHONY += $(clean-dirs) clean archclean
1838 $(clean-dirs):
1839         $(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$@)
1840
1841 clean: $(clean-dirs)
1842         $(call cmd,rmdirs)
1843         $(call cmd,rmfiles)
1844         @find $(if $(KBUILD_EXTMOD), $(KBUILD_EXTMOD), .) $(RCS_FIND_IGNORE) \
1845                 \( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \
1846                 -o -name '*.ko.*' -o -name '*.su' \
1847                 -o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \
1848                 -o -name '*.lex.c' -o -name '*.tab.[ch]' \
1849                 -o -name '*.symtypes' -o -name 'modules.order' \
1850                 -o -name modules.builtin -o -name '.tmp_*.o.*' \
1851                 -o -name 'dsdt.aml' -o -name 'dsdt.asl.tmp' -o -name 'dsdt.c' \
1852                 -o -name '*.efi' -o -name '*.gcno' -o -name '*.so' \) \
1853                 -type f -print | xargs rm -f
1854
1855 # mrproper - Delete all generated files, including .config
1856 #
1857 mrproper: rm-dirs  := $(wildcard $(MRPROPER_DIRS))
1858 mrproper: rm-files := $(wildcard $(MRPROPER_FILES))
1859 mrproper-dirs      := $(addprefix _mrproper_,scripts)
1860
1861 PHONY += $(mrproper-dirs) mrproper archmrproper
1862 $(mrproper-dirs):
1863         $(Q)$(MAKE) $(clean)=$(patsubst _mrproper_%,%,$@)
1864
1865 mrproper: clean $(mrproper-dirs)
1866         $(call cmd,rmdirs)
1867         $(call cmd,rmfiles)
1868         @rm -f arch/*/include/asm/arch
1869
1870 # distclean
1871 #
1872 PHONY += distclean
1873
1874 distclean: mrproper
1875         @find $(srctree) $(RCS_FIND_IGNORE) \
1876                 \( -name '*.orig' -o -name '*.rej' -o -name '*~' \
1877                 -o -name '*.bak' -o -name '#*#' -o -name '.*.orig' \
1878                 -o -name '.*.rej' -o -name '*%' -o -name 'core' \
1879                 -o -name '*.pyc' \) \
1880                 -type f -print | xargs rm -f
1881         @rm -f boards.cfg CHANGELOG
1882
1883 backup:
1884         F=`basename $(srctree)` ; cd .. ; \
1885         gtar --force-local -zcvf `LC_ALL=C date "+$$F-%Y-%m-%d-%T.tar.gz"` $$F
1886
1887 help:
1888         @echo  'Cleaning targets:'
1889         @echo  '  clean           - Remove most generated files but keep the config'
1890         @echo  '  mrproper        - Remove all generated files + config + various backup files'
1891         @echo  '  distclean       - mrproper + remove editor backup and patch files'
1892         @echo  ''
1893         @echo  'Configuration targets:'
1894         @$(MAKE) -f $(srctree)/scripts/kconfig/Makefile help
1895         @echo  ''
1896         @echo  'Test targets:'
1897         @echo  ''
1898         @echo  '  check           - Run all automated tests that use sandbox'
1899         @echo  '  qcheck          - Run quick automated tests that use sandbox'
1900         @echo  ''
1901         @echo  'Other generic targets:'
1902         @echo  '  all             - Build all necessary images depending on configuration'
1903         @echo  '  tests           - Build U-Boot for sandbox and run tests'
1904         @echo  '* u-boot          - Build the bare u-boot'
1905         @echo  '  dir/            - Build all files in dir and below'
1906         @echo  '  dir/file.[oisS] - Build specified target only'
1907         @echo  '  dir/file.lst    - Build specified mixed source/assembly target only'
1908         @echo  '                    (requires a recent binutils and recent build (System.map))'
1909         @echo  '  tags/ctags      - Generate ctags file for editors'
1910         @echo  '  etags           - Generate etags file for editors'
1911         @echo  '  cscope          - Generate cscope index'
1912         @echo  '  ubootrelease    - Output the release version string (use with make -s)'
1913         @echo  '  ubootversion    - Output the version stored in Makefile (use with make -s)'
1914         @echo  "  cfg             - Don't build, just create the .cfg files"
1915         @echo  "  envtools        - Build only the target-side environment tools"
1916         @echo  ''
1917         @echo  'Static analysers'
1918         @echo  '  checkstack      - Generate a list of stack hogs'
1919         @echo  '  coccicheck      - Execute static code analysis with Coccinelle'
1920         @echo  ''
1921         @echo  'Documentation targets:'
1922         @$(MAKE) -f $(srctree)/Documentation/Makefile dochelp
1923         @echo  ''
1924         @echo  '  make V=0|1 [targets] 0 => quiet build (default), 1 => verbose build'
1925         @echo  '  make V=2   [targets] 2 => give reason for rebuild of target'
1926         @echo  '  make O=dir [targets] Locate all output files in "dir", including .config'
1927         @echo  '  make C=1   [targets] Check all c source with $$CHECK (sparse by default)'
1928         @echo  '  make C=2   [targets] Force check of all c source with $$CHECK'
1929         @echo  '  make RECORDMCOUNT_WARN=1 [targets] Warn about ignored mcount sections'
1930         @echo  '  make W=n   [targets] Enable extra gcc checks, n=1,2,3 where'
1931         @echo  '                1: warnings which may be relevant and do not occur too often'
1932         @echo  '                2: warnings which occur quite often but may still be relevant'
1933         @echo  '                3: more obscure warnings, can most likely be ignored'
1934         @echo  '                Multiple levels can be combined with W=12 or W=123'
1935         @echo  ''
1936         @echo  'Execute "make" or "make all" to build all targets marked with [*] '
1937         @echo  'For further info see the ./README file'
1938
1939 tests check:
1940         $(srctree)/test/run
1941
1942 qcheck:
1943         $(srctree)/test/run quick
1944
1945 # Documentation targets
1946 # ---------------------------------------------------------------------------
1947 DOC_TARGETS := xmldocs latexdocs pdfdocs htmldocs epubdocs cleandocs \
1948                linkcheckdocs dochelp refcheckdocs
1949 PHONY += $(DOC_TARGETS)
1950 $(DOC_TARGETS): scripts_basic FORCE
1951         $(Q)$(MAKE) $(build)=Documentation $@
1952
1953 endif #ifeq ($(config-targets),1)
1954 endif #ifeq ($(mixed-targets),1)
1955
1956 PHONY += checkstack ubootrelease ubootversion
1957
1958 checkstack:
1959         $(OBJDUMP) -d u-boot $$(find . -name u-boot-spl) | \
1960         $(PERL) $(src)/scripts/checkstack.pl $(ARCH)
1961
1962 ubootrelease:
1963         @echo "$(UBOOTVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))"
1964
1965 ubootversion:
1966         @echo $(UBOOTVERSION)
1967
1968 # Single targets
1969 # ---------------------------------------------------------------------------
1970 # Single targets are compatible with:
1971 # - build with mixed source and output
1972 # - build with separate output dir 'make O=...'
1973 # - external modules
1974 #
1975 #  target-dir => where to store outputfile
1976 #  build-dir  => directory in kernel source tree to use
1977
1978 ifeq ($(KBUILD_EXTMOD),)
1979         build-dir  = $(patsubst %/,%,$(dir $@))
1980         target-dir = $(dir $@)
1981 else
1982         zap-slash=$(filter-out .,$(patsubst %/,%,$(dir $@)))
1983         build-dir  = $(KBUILD_EXTMOD)$(if $(zap-slash),/$(zap-slash))
1984         target-dir = $(if $(KBUILD_EXTMOD),$(dir $<),$(dir $@))
1985 endif
1986
1987 %.s: %.c prepare scripts FORCE
1988         $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1989 %.i: %.c prepare scripts FORCE
1990         $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1991 %.o: %.c prepare scripts FORCE
1992         $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1993 %.lst: %.c prepare scripts FORCE
1994         $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1995 %.s: %.S prepare scripts FORCE
1996         $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1997 %.o: %.S prepare scripts FORCE
1998         $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1999 %.symtypes: %.c prepare scripts FORCE
2000         $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
2001
2002 # Modules
2003 /: prepare scripts FORCE
2004         $(cmd_crmodverdir)
2005         $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \
2006         $(build)=$(build-dir)
2007 %/: prepare scripts FORCE
2008         $(cmd_crmodverdir)
2009         $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \
2010         $(build)=$(build-dir)
2011 %.ko: prepare scripts FORCE
2012         $(cmd_crmodverdir)
2013         $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1)   \
2014         $(build)=$(build-dir) $(@:.ko=.o)
2015         $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost
2016
2017 quiet_cmd_genenv = GENENV $@
2018 cmd_genenv = $(OBJCOPY) --dump-section .rodata.default_environment=$@ env/common.o; \
2019         sed --in-place -e 's/\x00/\x0A/g' $@
2020
2021 u-boot-initial-env: u-boot.bin
2022         $(call if_changed,genenv)
2023
2024 # Consistency checks
2025 # ---------------------------------------------------------------------------
2026
2027 PHONY += coccicheck
2028
2029 coccicheck:
2030         $(Q)$(CONFIG_SHELL) $(srctree)/scripts/$@
2031
2032 # FIXME Should go into a make.lib or something
2033 # ===========================================================================
2034
2035 quiet_cmd_rmdirs = $(if $(wildcard $(rm-dirs)),CLEAN   $(wildcard $(rm-dirs)))
2036       cmd_rmdirs = rm -rf $(rm-dirs)
2037
2038 quiet_cmd_rmfiles = $(if $(wildcard $(rm-files)),CLEAN   $(wildcard $(rm-files)))
2039       cmd_rmfiles = rm -f $(rm-files)
2040
2041 # read all saved command lines
2042
2043 targets := $(wildcard $(sort $(targets)))
2044 cmd_files := $(wildcard .*.cmd $(foreach f,$(targets),$(dir $(f)).$(notdir $(f)).cmd))
2045
2046 ifneq ($(cmd_files),)
2047   $(cmd_files): ;       # Do not try to update included dependency files
2048   include $(cmd_files)
2049 endif
2050
2051 endif   # skip-makefile
2052
2053 PHONY += FORCE
2054 FORCE:
2055
2056 # Declare the contents of the .PHONY variable as phony.  We keep that
2057 # information in a variable so we can use it in if_changed and friends.
2058 .PHONY: $(PHONY)