Makefile

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