Makefile

   1 # SPDX-License-Identifier: GPL-2.0+
   2
   3 VERSION = 2019
   4 PATCHLEVEL = 07
   5 SUBLEVEL =
   6 EXTRAVERSION = -rc4
   7 NAME =
   8
   9 # *DOCUMENTATION*
  10 # To see a list of typical targets execute "make help"
  11 # More info can be located in ./README
  12 # Comments in this file are targeted only to the developer, do not
  13 # expect to learn how to build the kernel reading this file.
  14
  15 # o Do not use make's built-in rules and variables
  16 #   (this increases performance and avoids hard-to-debug behaviour);
  17 # o Look for make include files relative to root of kernel src
  18 MAKEFLAGS += -rR --include-dir=$(CURDIR)
  19
  20 # Avoid funny character set dependencies
  21 unexport LC_ALL
  22 LC_COLLATE=C
  23 LC_NUMERIC=C
  24 export LC_COLLATE LC_NUMERIC
  25
  26 # Avoid interference with shell env settings
  27 unexport GREP_OPTIONS
  28
  29 # We are using a recursive build, so we need to do a little thinking
  30 # to get the ordering right.
  31 #
  32 # Most importantly: sub-Makefiles should only ever modify files in
  33 # their own directory. If in some directory we have a dependency on
  34 # a file in another dir (which doesn't happen often, but it's often
  35 # unavoidable when linking the built-in.o targets which finally
  36 # turn into vmlinux), we will call a sub make in that other dir, and
  37 # after that we are sure that everything which is in that other dir
  38 # is now up to date.
  39 #
  40 # The only cases where we need to modify files which have global
  41 # effects are thus separated out and done before the recursive
  42 # descending is started. They are now explicitly listed as the
  43 # prepare rule.
  44
  45 # Beautify output
  46 # ---------------------------------------------------------------------------
  47 #
  48 # Normally, we echo the whole command before executing it. By making
  49 # that echo $($(quiet)$(cmd)), we now have the possibility to set
  50 # $(quiet) to choose other forms of output instead, e.g.
  51 #
  52 #         quiet_cmd_cc_o_c = Compiling $(RELDIR)/$@
  53 #         cmd_cc_o_c       = $(CC) $(c_flags) -c -o $@ $<
  54 #
  55 # If $(quiet) is empty, the whole command will be printed.
  56 # If it is set to "quiet_", only the short version will be printed.
  57 # If it is set to "silent_", nothing will be printed at all, since
  58 # the variable $(silent_cmd_cc_o_c) doesn't exist.
  59 #
  60 # A simple variant is to prefix commands with $(Q) - that's useful
  61 # for commands that shall be hidden in non-verbose mode.
  62 #
  63 #       $(Q)ln $@ :<
  64 #
  65 # If KBUILD_VERBOSE equals 0 then the above command will be hidden.
  66 # If KBUILD_VERBOSE equals 1 then the above command is displayed.
  67 #
  68 # To put more focus on warnings, be less verbose as default
  69 # Use 'make V=1' to see the full commands
  70
  71 ifeq ("$(origin V)", "command line")
  72   KBUILD_VERBOSE = $(V)
  73 endif
  74 ifndef KBUILD_VERBOSE
  75   KBUILD_VERBOSE = 0
  76 endif
  77
  78 ifeq ($(KBUILD_VERBOSE),1)
  79   quiet =
  80   Q =
  81 else
  82   quiet=quiet_
  83   Q = @
  84 endif
  85
  86 # If the user is running make -s (silent mode), suppress echoing of
  87 # commands
  88
  89 ifneq ($(filter 4.%,$(MAKE_VERSION)),)  # make-4
  90 ifneq ($(filter %s ,$(firstword x$(MAKEFLAGS))),)
  91   quiet=silent_
  92 endif
  93 else                                    # make-3.8x
  94 ifneq ($(filter s% -s%,$(MAKEFLAGS)),)
  95   quiet=silent_
  96 endif
  97 endif
  98
  99 export quiet Q KBUILD_VERBOSE
 100
 101 # kbuild supports saving output files in a separate directory.
 102 # To locate output files in a separate directory two syntaxes are supported.
 103 # In both cases the working directory must be the root of the kernel src.
 104 # 1) O=
 105 # Use "make O=dir/to/store/output/files/"
 106 #
 107 # 2) Set KBUILD_OUTPUT
 108 # Set the environment variable KBUILD_OUTPUT to point to the directory
 109 # where the output files shall be placed.
 110 # export KBUILD_OUTPUT=dir/to/store/output/files/
 111 # make
 112 #
 113 # The O= assignment takes precedence over the KBUILD_OUTPUT environment
 114 # variable.
 115
 116 # KBUILD_SRC is set on invocation of make in OBJ directory
 117 # KBUILD_SRC is not intended to be used by the regular user (for now)
 118 ifeq ($(KBUILD_SRC),)
 119
 120 # OK, Make called in directory where kernel src resides
 121 # Do we want to locate output files in a separate directory?
 122 ifeq ("$(origin O)", "command line")
 123   KBUILD_OUTPUT := $(O)
 124 endif
 125
 126 # That's our default target when none is given on the command line
 127 PHONY := _all
 128 _all:
 129
 130 # Cancel implicit rules on top Makefile
 131 $(CURDIR)/Makefile Makefile: ;
 132
 133 ifneq ($(KBUILD_OUTPUT),)
 134 # Invoke a second make in the output directory, passing relevant variables
 135 # check that the output directory actually exists
 136 saved-output := $(KBUILD_OUTPUT)
 137 KBUILD_OUTPUT := $(shell mkdir -p $(KBUILD_OUTPUT) && cd $(KBUILD_OUTPUT) \
 138                                                                 && /bin/pwd)
 139 $(if $(KBUILD_OUTPUT),, \
 140      $(error failed to create output directory "$(saved-output)"))
 141
 142 PHONY += $(MAKECMDGOALS) sub-make
 143
 144 $(filter-out _all sub-make $(CURDIR)/Makefile, $(MAKECMDGOALS)) _all: sub-make
 145         @:
 146
 147 sub-make: FORCE
 148         $(Q)$(MAKE) -C $(KBUILD_OUTPUT) KBUILD_SRC=$(CURDIR) \
 149         -f $(CURDIR)/Makefile $(filter-out _all sub-make,$(MAKECMDGOALS))
 150
 151 # Leave processing to above invocation of make
 152 skip-makefile := 1
 153 endif # ifneq ($(KBUILD_OUTPUT),)
 154 endif # ifeq ($(KBUILD_SRC),)
 155
 156 # We process the rest of the Makefile if this is the final invocation of make
 157 ifeq ($(skip-makefile),)
 158
 159 # Do not print "Entering directory ...",
 160 # but we want to display it when entering to the output directory
 161 # so that IDEs/editors are able to understand relative filenames.
 162 MAKEFLAGS += --no-print-directory
 163
 164 # Call a source code checker (by default, "sparse") as part of the
 165 # C compilation.
 166 #
 167 # Use 'make C=1' to enable checking of only re-compiled files.
 168 # Use 'make C=2' to enable checking of *all* source files, regardless
 169 # of whether they are re-compiled or not.
 170 #
 171 # See the file "Documentation/sparse.txt" for more details, including
 172 # where to get the "sparse" utility.
 173
 174 ifeq ("$(origin C)", "command line")
 175   KBUILD_CHECKSRC = $(C)
 176 endif
 177 ifndef KBUILD_CHECKSRC
 178   KBUILD_CHECKSRC = 0
 179 endif
 180
 181 # Use make M=dir to specify directory of external module to build
 182 # Old syntax make ... SUBDIRS=$PWD is still supported
 183 # Setting the environment variable KBUILD_EXTMOD take precedence
 184 ifdef SUBDIRS
 185   KBUILD_EXTMOD ?= $(SUBDIRS)
 186 endif
 187
 188 ifeq ("$(origin M)", "command line")
 189   KBUILD_EXTMOD := $(M)
 190 endif
 191
 192 # If building an external module we do not care about the all: rule
 193 # but instead _all depend on modules
 194 PHONY += all
 195 ifeq ($(KBUILD_EXTMOD),)
 196 _all: all
 197 else
 198 _all: modules
 199 endif
 200
 201 ifeq ($(KBUILD_SRC),)
 202         # building in the source tree
 203         srctree := .
 204 else
 205         ifeq ($(KBUILD_SRC)/,$(dir $(CURDIR)))
 206                 # building in a subdirectory of the source tree
 207                 srctree := ..
 208         else
 209                 srctree := $(KBUILD_SRC)
 210         endif
 211 endif
 212 objtree         := .
 213 src             := $(srctree)
 214 obj             := $(objtree)
 215
 216 VPATH           := $(srctree)$(if $(KBUILD_EXTMOD),:$(KBUILD_EXTMOD))
 217
 218 export srctree objtree VPATH
 219
 220 # Make sure CDPATH settings don't interfere
 221 unexport CDPATH
 222
 223 #########################################################################
 224
 225 HOSTARCH := $(shell uname -m | \
 226         sed -e s/i.86/x86/ \
 227             -e s/sun4u/sparc64/ \
 228             -e s/arm.*/arm/ \
 229             -e s/sa110/arm/ \
 230             -e s/ppc64/powerpc/ \
 231             -e s/ppc/powerpc/ \
 232             -e s/macppc/powerpc/\
 233             -e s/sh.*/sh/)
 234
 235 HOSTOS := $(shell uname -s | tr '[:upper:]' '[:lower:]' | \
 236             sed -e 's/\(cygwin\).*/cygwin/')
 237
 238 export  HOSTARCH HOSTOS
 239
 240 #########################################################################
 241
 242 # set default to nothing for native builds
 243 ifeq ($(HOSTARCH),$(ARCH))
 244 CROSS_COMPILE ?=
 245 endif
 246
 247 KCONFIG_CONFIG  ?= .config
 248 export KCONFIG_CONFIG
 249
 250 # SHELL used by kbuild
 251 CONFIG_SHELL := $(shell if [ -x "$$BASH" ]; then echo $$BASH; \
 252           else if [ -x /bin/bash ]; then echo /bin/bash; \
 253           else echo sh; fi ; fi)
 254
 255 HOSTCC       = cc
 256 HOSTCXX      = c++
 257 HOSTCFLAGS   = -Wall -Wstrict-prototypes -O2 -fomit-frame-pointer \
 258                 $(if $(CONFIG_TOOLS_DEBUG),-g)
 259 HOSTCXXFLAGS = -O2
 260
 261 # With the move to GCC 6, we have implicitly upgraded our language
 262 # standard to GNU11 (see https://gcc.gnu.org/gcc-5/porting_to.html).
 263 # Some Linux distributions (including RHEL7, SLES13, Debian 8) still
 264 # have older compilers as their default, so we make it explicit for
 265 # these that our host tools are GNU11 (i.e. C11 w/ GNU extensions).
 266 CSTD_FLAG := -std=gnu11
 267 ifeq ($(HOSTOS),linux)
 268 HOSTCFLAGS += $(CSTD_FLAG)
 269 endif
 270
 271 ifeq ($(HOSTOS),cygwin)
 272 HOSTCFLAGS      += -ansi
 273 endif
 274
 275 # Mac OS X / Darwin's C preprocessor is Apple specific.  It
 276 # generates numerous errors and warnings.  We want to bypass it
 277 # and use GNU C's cpp.  To do this we pass the -traditional-cpp
 278 # option to the compiler.  Note that the -traditional-cpp flag
 279 # DOES NOT have the same semantics as GNU C's flag, all it does
 280 # is invoke the GNU preprocessor in stock ANSI/ISO C fashion.
 281 #
 282 # Apple's linker is similar, thanks to the new 2 stage linking
 283 # multiple symbol definitions are treated as errors, hence the
 284 # -multiply_defined suppress option to turn off this error.
 285 #
 286 ifeq ($(HOSTOS),darwin)
 287 # get major and minor product version (e.g. '10' and '6' for Snow Leopard)
 288 DARWIN_MAJOR_VERSION    = $(shell sw_vers -productVersion | cut -f 1 -d '.')
 289 DARWIN_MINOR_VERSION    = $(shell sw_vers -productVersion | cut -f 2 -d '.')
 290
 291 os_x_before     = $(shell if [ $(DARWIN_MAJOR_VERSION) -le $(1) -a \
 292         $(DARWIN_MINOR_VERSION) -le $(2) ] ; then echo "$(3)"; else echo "$(4)"; fi ;)
 293
 294 os_x_after = $(shell if [ $(DARWIN_MAJOR_VERSION) -ge $(1) -a \
 295         $(DARWIN_MINOR_VERSION) -ge $(2) ] ; then echo "$(3)"; else echo "$(4)"; fi ;)
 296
 297 # Snow Leopards build environment has no longer restrictions as described above
 298 HOSTCC       = $(call os_x_before, 10, 5, "cc", "gcc")
 299 HOSTCFLAGS  += $(call os_x_before, 10, 4, "-traditional-cpp")
 300 HOSTLDFLAGS += $(call os_x_before, 10, 5, "-multiply_defined suppress")
 301
 302 # since Lion (10.7) ASLR is on by default, but we use linker generated lists
 303 # in some host tools which is a problem then ... so disable ASLR for these
 304 # tools
 305 HOSTLDFLAGS += $(call os_x_before, 10, 7, "", "-Xlinker -no_pie")
 306
 307 # macOS Mojave (10.14.X)
 308 # Undefined symbols for architecture x86_64: "_PyArg_ParseTuple"
 309 HOSTLDFLAGS += $(call os_x_after, 10, 14, "-lpython -dynamclib", "")
 310 endif
 311
 312 # Decide whether to build built-in, modular, or both.
 313 # Normally, just do built-in.
 314
 315 KBUILD_MODULES :=
 316 KBUILD_BUILTIN := 1
 317
 318 # If we have only "make modules", don't compile built-in objects.
 319 # When we're building modules with modversions, we need to consider
 320 # the built-in objects during the descend as well, in order to
 321 # make sure the checksums are up to date before we record them.
 322
 323 ifeq ($(MAKECMDGOALS),modules)
 324   KBUILD_BUILTIN := $(if $(CONFIG_MODVERSIONS),1)
 325 endif
 326
 327 # If we have "make <whatever> modules", compile modules
 328 # in addition to whatever we do anyway.
 329 # Just "make" or "make all" shall build modules as well
 330
 331 # U-Boot does not need modules
 332 #ifneq ($(filter all _all modules,$(MAKECMDGOALS)),)
 333 #  KBUILD_MODULES := 1
 334 #endif
 335
 336 #ifeq ($(MAKECMDGOALS),)
 337 #  KBUILD_MODULES := 1
 338 #endif
 339
 340 define size_check
 341         actual=$$( wc -c $1 | awk '{print $$1}'); \
 342         limit=$$( printf "%d" $2 ); \
 343         if test $$actual -gt $$limit; then \
 344                 echo "$1 exceeds file size limit:" >&2; \
 345                 echo "  limit:  $$limit bytes" >&2; \
 346                 echo "  actual: $$actual bytes" >&2; \
 347                 echo "  excess: $$((actual - limit)) bytes" >&2; \
 348                 exit 1; \
 349         fi
 350 endef
 351 export size_check
 352
 353 export KBUILD_MODULES KBUILD_BUILTIN
 354 export KBUILD_CHECKSRC KBUILD_SRC KBUILD_EXTMOD
 355
 356 # We need some generic definitions (do not try to remake the file).
 357 scripts/Kbuild.include: ;
 358 include scripts/Kbuild.include
 359
 360 # Make variables (CC, etc...)
 361
 362 AS              = $(CROSS_COMPILE)as
 363 # Always use GNU ld
 364 ifneq ($(shell $(CROSS_COMPILE)ld.bfd -v 2> /dev/null),)
 365 LD              = $(CROSS_COMPILE)ld.bfd
 366 else
 367 LD              = $(CROSS_COMPILE)ld
 368 endif
 369 CC              = $(CROSS_COMPILE)gcc
 370 CPP             = $(CC) -E
 371 AR              = $(CROSS_COMPILE)ar
 372 NM              = $(CROSS_COMPILE)nm
 373 LDR             = $(CROSS_COMPILE)ldr
 374 STRIP           = $(CROSS_COMPILE)strip
 375 OBJCOPY         = $(CROSS_COMPILE)objcopy
 376 OBJDUMP         = $(CROSS_COMPILE)objdump
 377 LEX             = flex
 378 YACC            = bison
 379 AWK             = awk
 380 PERL            = perl
 381 PYTHON          ?= python
 382 PYTHON2         = python2
 383 PYTHON3         = python3
 384 DTC             ?= $(objtree)/scripts/dtc/dtc
 385 CHECK           = sparse
 386
 387 CHECKFLAGS     := -D__linux__ -Dlinux -D__STDC__ -Dunix -D__unix__ \
 388                   -Wbitwise -Wno-return-void -D__CHECK_ENDIAN__ $(CF)
 389
 390 KBUILD_CPPFLAGS := -D__KERNEL__ -D__UBOOT__
 391
 392 KBUILD_CFLAGS   := -Wall -Wstrict-prototypes \
 393                    -Wno-format-security \
 394                    -fno-builtin -ffreestanding $(CSTD_FLAG)
 395 KBUILD_CFLAGS   += -fshort-wchar -fno-strict-aliasing
 396 KBUILD_AFLAGS   := -D__ASSEMBLY__
 397
 398 # Don't generate position independent code
 399 KBUILD_CFLAGS   += $(call cc-option,-fno-PIE)
 400 KBUILD_AFLAGS   += $(call cc-option,-fno-PIE)
 401
 402 # Read UBOOTRELEASE from include/config/uboot.release (if it exists)
 403 UBOOTRELEASE = $(shell cat include/config/uboot.release 2> /dev/null)
 404 UBOOTVERSION = $(VERSION)$(if $(PATCHLEVEL),.$(PATCHLEVEL)$(if $(SUBLEVEL),.$(SUBLEVEL)))$(EXTRAVERSION)
 405
 406 export VERSION PATCHLEVEL SUBLEVEL UBOOTRELEASE UBOOTVERSION
 407 export ARCH CPU BOARD VENDOR SOC CPUDIR BOARDDIR
 408 export CONFIG_SHELL HOSTCC HOSTCFLAGS HOSTLDFLAGS CROSS_COMPILE AS LD CC
 409 export CPP AR NM LDR STRIP OBJCOPY OBJDUMP
 410 export MAKE LEX YACC AWK PERL PYTHON PYTHON2 PYTHON3
 411 export HOSTCXX HOSTCXXFLAGS CHECK CHECKFLAGS DTC DTC_FLAGS
 412
 413 export KBUILD_CPPFLAGS NOSTDINC_FLAGS UBOOTINCLUDE OBJCOPYFLAGS LDFLAGS
 414 export KBUILD_CFLAGS KBUILD_AFLAGS
 415
 416 # When compiling out-of-tree modules, put MODVERDIR in the module
 417 # tree rather than in the kernel tree. The kernel tree might
 418 # even be read-only.
 419 export MODVERDIR := $(if $(KBUILD_EXTMOD),$(firstword $(KBUILD_EXTMOD))/).tmp_versions
 420
 421 # Files to ignore in find ... statements
 422
 423 export RCS_FIND_IGNORE := \( -name SCCS -o -name BitKeeper -o -name .svn -o    \
 424                           -name CVS -o -name .pc -o -name .hg -o -name .git \) \
 425                           -prune -o
 426 export RCS_TAR_IGNORE := --exclude SCCS --exclude BitKeeper --exclude .svn \
 427                          --exclude CVS --exclude .pc --exclude .hg --exclude .git
 428
 429 # ===========================================================================
 430 # Rules shared between *config targets and build targets
 431
 432 # Basic helpers built in scripts/
 433 PHONY += scripts_basic
 434 scripts_basic:
 435         $(Q)$(MAKE) $(build)=scripts/basic
 436         $(Q)rm -f .tmp_quiet_recordmcount
 437
 438 # To avoid any implicit rule to kick in, define an empty command.
 439 scripts/basic/%: scripts_basic ;
 440
 441 PHONY += outputmakefile
 442 # outputmakefile generates a Makefile in the output directory, if using a
 443 # separate output directory. This allows convenient use of make in the
 444 # output directory.
 445 outputmakefile:
 446 ifneq ($(KBUILD_SRC),)
 447         $(Q)ln -fsn $(srctree) source
 448         $(Q)$(CONFIG_SHELL) $(srctree)/scripts/mkmakefile \
 449             $(srctree) $(objtree) $(VERSION) $(PATCHLEVEL)
 450 endif
 451
 452 # To make sure we do not include .config for any of the *config targets
 453 # catch them early, and hand them over to scripts/kconfig/Makefile
 454 # It is allowed to specify more targets when calling make, including
 455 # mixing *config targets and build targets.
 456 # For example 'make oldconfig all'.
 457 # Detect when mixed targets is specified, and make a second invocation
 458 # of make so .config is not included in this case either (for *config).
 459
 460 version_h := include/generated/version_autogenerated.h
 461 timestamp_h := include/generated/timestamp_autogenerated.h
 462 defaultenv_h := include/generated/defaultenv_autogenerated.h
 463
 464 no-dot-config-targets := clean clobber mrproper distclean \
 465                          help %docs check% coccicheck \
 466                          ubootversion backup tests check qcheck
 467
 468 config-targets := 0
 469 mixed-targets  := 0
 470 dot-config     := 1
 471
 472 ifneq ($(filter $(no-dot-config-targets), $(MAKECMDGOALS)),)
 473         ifeq ($(filter-out $(no-dot-config-targets), $(MAKECMDGOALS)),)
 474                 dot-config := 0
 475         endif
 476 endif
 477
 478 ifeq ($(KBUILD_EXTMOD),)
 479         ifneq ($(filter config %config,$(MAKECMDGOALS)),)
 480                 config-targets := 1
 481                 ifneq ($(words $(MAKECMDGOALS)),1)
 482                         mixed-targets := 1
 483                 endif
 484         endif
 485 endif
 486
 487 ifeq ($(mixed-targets),1)
 488 # ===========================================================================
 489 # We're called with mixed targets (*config and build targets).
 490 # Handle them one by one.
 491
 492 PHONY += $(MAKECMDGOALS) __build_one_by_one
 493
 494 $(filter-out __build_one_by_one, $(MAKECMDGOALS)): __build_one_by_one
 495         @:
 496
 497 __build_one_by_one:
 498         $(Q)set -e; \
 499         for i in $(MAKECMDGOALS); do \
 500                 $(MAKE) -f $(srctree)/Makefile $$i; \
 501         done
 502
 503 else
 504 ifeq ($(config-targets),1)
 505 # ===========================================================================
 506 # *config targets only - make sure prerequisites are updated, and descend
 507 # in scripts/kconfig to make the *config target
 508
 509 KBUILD_DEFCONFIG := sandbox_defconfig
 510 export KBUILD_DEFCONFIG KBUILD_KCONFIG
 511
 512 config: scripts_basic outputmakefile FORCE
 513         $(Q)$(MAKE) $(build)=scripts/kconfig $@
 514
 515 %config: scripts_basic outputmakefile FORCE
 516         $(Q)$(MAKE) $(build)=scripts/kconfig $@
 517
 518 else
 519 # ===========================================================================
 520 # Build targets only - this includes vmlinux, arch specific targets, clean
 521 # targets and others. In general all targets except *config targets.
 522
 523 # Additional helpers built in scripts/
 524 # Carefully list dependencies so we do not try to build scripts twice
 525 # in parallel
 526 PHONY += scripts
 527 scripts: scripts_basic include/config/auto.conf
 528         $(Q)$(MAKE) $(build)=$(@)
 529
 530 ifeq ($(dot-config),1)
 531 # Read in config
 532 -include include/config/auto.conf
 533
 534 # Read in dependencies to all Kconfig* files, make sure to run
 535 # oldconfig if changes are detected.
 536 -include include/config/auto.conf.cmd
 537
 538 # To avoid any implicit rule to kick in, define an empty command
 539 $(KCONFIG_CONFIG) include/config/auto.conf.cmd: ;
 540
 541 # If .config is newer than include/config/auto.conf, someone tinkered
 542 # with it and forgot to run make oldconfig.
 543 # if auto.conf.cmd is missing then we are probably in a cleaned tree so
 544 # we execute the config step to be sure to catch updated Kconfig files
 545 include/config/%.conf: $(KCONFIG_CONFIG) include/config/auto.conf.cmd
 546         $(Q)$(MAKE) -f $(srctree)/Makefile syncconfig
 547         @# If the following part fails, include/config/auto.conf should be
 548         @# deleted so "make silentoldconfig" will be re-run on the next build.
 549         $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.autoconf || \
 550                 { rm -f include/config/auto.conf; false; }
 551         @# include/config.h has been updated after "make silentoldconfig".
 552         @# We need to touch include/config/auto.conf so it gets newer
 553         @# than include/config.h.
 554         @# Otherwise, 'make silentoldconfig' would be invoked twice.
 555         $(Q)touch include/config/auto.conf
 556
 557 u-boot.cfg spl/u-boot.cfg tpl/u-boot.cfg:
 558         $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.autoconf $(@)
 559
 560 -include include/autoconf.mk
 561 -include include/autoconf.mk.dep
 562
 563 # We want to include arch/$(ARCH)/config.mk only when include/config/auto.conf
 564 # is up-to-date. When we switch to a different board configuration, old CONFIG
 565 # macros are still remaining in include/config/auto.conf. Without the following
 566 # gimmick, wrong config.mk would be included leading nasty warnings/errors.
 567 ifneq ($(wildcard $(KCONFIG_CONFIG)),)
 568 ifneq ($(wildcard include/config/auto.conf),)
 569 autoconf_is_old := $(shell find . -path ./$(KCONFIG_CONFIG) -newer \
 570                                                 include/config/auto.conf)
 571 ifeq ($(autoconf_is_old),)
 572 include config.mk
 573 include arch/$(ARCH)/Makefile
 574 endif
 575 endif
 576 endif
 577
 578 # These are set by the arch-specific config.mk. Make sure they are exported
 579 # so they can be used when building an EFI application.
 580 export EFI_LDS          # Filename of EFI link script in arch/$(ARCH)/lib
 581 export EFI_CRT0         # Filename of EFI CRT0 in arch/$(ARCH)/lib
 582 export EFI_RELOC        # Filename of EFU relocation code in arch/$(ARCH)/lib
 583 export CFLAGS_EFI       # Compiler flags to add when building EFI app
 584 export CFLAGS_NON_EFI   # Compiler flags to remove when building EFI app
 585 export EFI_TARGET       # binutils target if EFI is natively supported
 586
 587 # If board code explicitly specified LDSCRIPT or CONFIG_SYS_LDSCRIPT, use
 588 # that (or fail if absent).  Otherwise, search for a linker script in a
 589 # standard location.
 590
 591 ifndef LDSCRIPT
 592         #LDSCRIPT := $(srctree)/board/$(BOARDDIR)/u-boot.lds.debug
 593         ifdef CONFIG_SYS_LDSCRIPT
 594                 # need to strip off double quotes
 595                 LDSCRIPT := $(srctree)/$(CONFIG_SYS_LDSCRIPT:"%"=%)
 596         endif
 597 endif
 598
 599 # If there is no specified link script, we look in a number of places for it
 600 ifndef LDSCRIPT
 601         ifeq ($(wildcard $(LDSCRIPT)),)
 602                 LDSCRIPT := $(srctree)/board/$(BOARDDIR)/u-boot.lds
 603         endif
 604         ifeq ($(wildcard $(LDSCRIPT)),)
 605                 LDSCRIPT := $(srctree)/$(CPUDIR)/u-boot.lds
 606         endif
 607         ifeq ($(wildcard $(LDSCRIPT)),)
 608                 LDSCRIPT := $(srctree)/arch/$(ARCH)/cpu/u-boot.lds
 609         endif
 610 endif
 611
 612 else
 613 # Dummy target needed, because used as prerequisite
 614 include/config/auto.conf: ;
 615 endif # $(dot-config)
 616
 617 #
 618 # Xtensa linker script cannot be preprocessed with -ansi because of
 619 # preprocessor operations on strings that don't make C identifiers.
 620 #
 621 ifeq ($(CONFIG_XTENSA),)
 622 LDPPFLAGS       += -ansi
 623 endif
 624
 625 ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE
 626 KBUILD_CFLAGS   += -Os
 627 else
 628 KBUILD_CFLAGS   += -O2
 629 endif
 630
 631 KBUILD_CFLAGS += $(call cc-option,-fno-stack-protector)
 632 KBUILD_CFLAGS += $(call cc-option,-fno-delete-null-pointer-checks)
 633
 634 # change __FILE__ to the relative path from the srctree
 635 KBUILD_CFLAGS   += $(call cc-option,-fmacro-prefix-map=$(srctree)/=)
 636
 637 KBUILD_CFLAGS   += -g
 638 # $(KBUILD_AFLAGS) sets -g, which causes gcc to pass a suitable -g<format>
 639 # option to the assembler.
 640 KBUILD_AFLAGS   += -g
 641
 642 # Report stack usage if supported
 643 # ARC tools based on GCC 7.1 has an issue with stack usage
 644 # with naked functions, see commit message for more details
 645 ifndef CONFIG_ARC
 646 ifeq ($(shell $(CONFIG_SHELL) $(srctree)/scripts/gcc-stack-usage.sh $(CC)),y)
 647         KBUILD_CFLAGS += -fstack-usage
 648 endif
 649 endif
 650
 651 KBUILD_CFLAGS += $(call cc-option,-Wno-format-nonliteral)
 652 ifeq ($(cc-name),clang)
 653 KBUILD_CPPFLAGS += $(call cc-option,-Qunused-arguments,)
 654 KBUILD_CFLAGS += $(call cc-disable-warning, format-invalid-specifier)
 655 KBUILD_CFLAGS += $(call cc-disable-warning, gnu)
 656 KBUILD_CFLAGS += $(call cc-disable-warning, address-of-packed-member)
 657 KBUILD_CFLAGS += $(call cc-option, -fcatch-undefined-behavior)
 658 endif
 659
 660 # turn jbsr into jsr for m68k
 661 ifeq ($(ARCH),m68k)
 662 ifeq ($(findstring 3.4,$(shell $(CC) --version)),3.4)
 663 KBUILD_AFLAGS += -Wa,-gstabs,-S
 664 endif
 665 endif
 666
 667 # Prohibit date/time macros, which would make the build non-deterministic
 668 KBUILD_CFLAGS   += $(call cc-option,-Werror=date-time)
 669
 670 include scripts/Makefile.extrawarn
 671
 672 # Add user supplied CPPFLAGS, AFLAGS and CFLAGS as the last assignments
 673 KBUILD_CPPFLAGS += $(KCPPFLAGS)
 674 KBUILD_AFLAGS += $(KAFLAGS)
 675 KBUILD_CFLAGS += $(KCFLAGS)
 676
 677 # Use UBOOTINCLUDE when you must reference the include/ directory.
 678 # Needed to be compatible with the O= option
 679 UBOOTINCLUDE    := \
 680                 -Iinclude \
 681                 $(if $(KBUILD_SRC), -I$(srctree)/include) \
 682                 $(if $(CONFIG_$(SPL_)SYS_THUMB_BUILD), \
 683                         $(if $(CONFIG_HAS_THUMB2),, \
 684                                 -I$(srctree)/arch/$(ARCH)/thumb1/include),) \
 685                 -I$(srctree)/arch/$(ARCH)/include \
 686                 -include $(srctree)/include/linux/kconfig.h
 687
 688 NOSTDINC_FLAGS += -nostdinc -isystem $(shell $(CC) -print-file-name=include)
 689 CHECKFLAGS     += $(NOSTDINC_FLAGS)
 690
 691 # FIX ME
 692 cpp_flags := $(KBUILD_CPPFLAGS) $(PLATFORM_CPPFLAGS) $(UBOOTINCLUDE) \
 693                                                         $(NOSTDINC_FLAGS)
 694 c_flags := $(KBUILD_CFLAGS) $(cpp_flags)
 695
 696 #########################################################################
 697 # U-Boot objects....order is important (i.e. start must be first)
 698
 699 HAVE_VENDOR_COMMON_LIB = $(if $(wildcard $(srctree)/board/$(VENDOR)/common/Makefile),y,n)
 700
 701 libs-y += lib/
 702 libs-$(HAVE_VENDOR_COMMON_LIB) += board/$(VENDOR)/common/
 703 libs-$(CONFIG_OF_EMBED) += dts/
 704 libs-y += fs/
 705 libs-y += net/
 706 libs-y += disk/
 707 libs-y += drivers/
 708 libs-y += drivers/dma/
 709 libs-y += drivers/gpio/
 710 libs-y += drivers/i2c/
 711 libs-y += drivers/mtd/
 712 libs-$(CONFIG_CMD_NAND) += drivers/mtd/nand/raw/
 713 libs-y += drivers/mtd/onenand/
 714 libs-$(CONFIG_CMD_UBI) += drivers/mtd/ubi/
 715 libs-y += drivers/mtd/spi/
 716 libs-y += drivers/net/
 717 libs-y += drivers/net/phy/
 718 libs-y += drivers/power/ \
 719         drivers/power/domain/ \
 720         drivers/power/fuel_gauge/ \
 721         drivers/power/mfd/ \
 722         drivers/power/pmic/ \
 723         drivers/power/battery/ \
 724         drivers/power/regulator/
 725 libs-y += drivers/spi/
 726 libs-$(CONFIG_FMAN_ENET) += drivers/net/fm/
 727 libs-$(CONFIG_SYS_FSL_DDR) += drivers/ddr/fsl/
 728 libs-$(CONFIG_SYS_FSL_MMDC) += drivers/ddr/fsl/
 729 libs-$(CONFIG_$(SPL_)ALTERA_SDRAM) += drivers/ddr/altera/
 730 libs-y += drivers/serial/
 731 libs-y += drivers/usb/dwc3/
 732 libs-y += drivers/usb/common/
 733 libs-y += drivers/usb/emul/
 734 libs-y += drivers/usb/eth/
 735 libs-$(CONFIG_USB_GADGET) += drivers/usb/gadget/
 736 libs-$(CONFIG_USB_GADGET) += drivers/usb/gadget/udc/
 737 libs-y += drivers/usb/host/
 738 libs-y += drivers/usb/musb/
 739 libs-y += drivers/usb/musb-new/
 740 libs-y += drivers/usb/phy/
 741 libs-y += drivers/usb/ulpi/
 742 libs-y += cmd/
 743 libs-y += common/
 744 libs-y += env/
 745 libs-$(CONFIG_API) += api/
 746 libs-$(CONFIG_HAS_POST) += post/
 747 libs-$(CONFIG_UNIT_TEST) += test/ test/dm/
 748 libs-$(CONFIG_UT_ENV) += test/env/
 749 libs-$(CONFIG_UT_OVERLAY) += test/overlay/
 750
 751 libs-y += $(if $(BOARDDIR),board/$(BOARDDIR)/)
 752
 753 libs-y := $(sort $(libs-y))
 754
 755 u-boot-dirs     := $(patsubst %/,%,$(filter %/, $(libs-y))) tools examples
 756
 757 u-boot-alldirs  := $(sort $(u-boot-dirs) $(patsubst %/,%,$(filter %/, $(libs-))))
 758
 759 libs-y          := $(patsubst %/, %/built-in.o, $(libs-y))
 760
 761 u-boot-init := $(head-y)
 762 u-boot-main := $(libs-y)
 763
 764
 765 # Add GCC lib
 766 ifeq ($(CONFIG_USE_PRIVATE_LIBGCC),y)
 767 PLATFORM_LIBGCC = arch/$(ARCH)/lib/lib.a
 768 else
 769 PLATFORM_LIBGCC := -L $(shell dirname `$(CC) $(c_flags) -print-libgcc-file-name`) -lgcc
 770 endif
 771 PLATFORM_LIBS += $(PLATFORM_LIBGCC)
 772
 773 ifdef CONFIG_CC_COVERAGE
 774 KBUILD_CFLAGS += --coverage
 775 PLATFORM_LIBGCC += -lgcov
 776 endif
 777
 778 export PLATFORM_LIBS
 779 export PLATFORM_LIBGCC
 780
 781 # Special flags for CPP when processing the linker script.
 782 # Pass the version down so we can handle backwards compatibility
 783 # on the fly.
 784 LDPPFLAGS += \
 785         -include $(srctree)/include/u-boot/u-boot.lds.h \
 786         -DCPUDIR=$(CPUDIR) \
 787         $(shell $(LD) --version | \
 788           sed -ne 's/GNU ld version \([0-9][0-9]*\)\.\([0-9][0-9]*\).*/-DLD_MAJOR=\1 -DLD_MINOR=\2/p')
 789
 790 #########################################################################
 791 #########################################################################
 792
 793 ifneq ($(CONFIG_BOARD_SIZE_LIMIT),)
 794 BOARD_SIZE_CHECK= @ $(call size_check,$@,$(CONFIG_BOARD_SIZE_LIMIT))
 795 else
 796 BOARD_SIZE_CHECK =
 797 endif
 798
 799 ifneq ($(CONFIG_SPL_SIZE_LIMIT),0)
 800 SPL_SIZE_CHECK = @$(call size_check,$@,$$(tools/spl_size_limit))
 801 else
 802 SPL_SIZE_CHECK =
 803 endif
 804
 805 # Statically apply RELA-style relocations (currently arm64 only)
 806 # This is useful for arm64 where static relocation needs to be performed on
 807 # the raw binary, but certain simulators only accept an ELF file (but don't
 808 # do the relocation).
 809 ifneq ($(CONFIG_STATIC_RELA),)
 810 # $(1) is u-boot ELF, $(2) is u-boot bin, $(3) is text base
 811 DO_STATIC_RELA = \
 812         start=$$($(NM) $(1) | grep __rel_dyn_start | cut -f 1 -d ' '); \
 813         end=$$($(NM) $(1) | grep __rel_dyn_end | cut -f 1 -d ' '); \
 814         tools/relocate-rela $(2) $(3) $$start $$end
 815 else
 816 DO_STATIC_RELA =
 817 endif
 818
 819 # Always append ALL so that arch config.mk's can add custom ones
 820 ALL-y += u-boot.srec u-boot.bin u-boot.sym System.map binary_size_check
 821
 822 ALL-$(CONFIG_ONENAND_U_BOOT) += u-boot-onenand.bin
 823 ifeq ($(CONFIG_SPL_FSL_PBL),y)
 824 ALL-$(CONFIG_RAMBOOT_PBL) += u-boot-with-spl-pbl.bin
 825 else
 826 ifneq ($(CONFIG_SECURE_BOOT), y)
 827 # For Secure Boot The Image needs to be signed and Header must also
 828 # be included. So The image has to be built explicitly
 829 ALL-$(CONFIG_RAMBOOT_PBL) += u-boot.pbl
 830 endif
 831 endif
 832 ALL-$(CONFIG_SPL) += spl/u-boot-spl.bin
 833 ifeq ($(CONFIG_MX6)$(CONFIG_SECURE_BOOT), yy)
 834 ALL-$(CONFIG_SPL_FRAMEWORK) += u-boot-ivt.img
 835 else
 836 ifeq ($(CONFIG_MX7)$(CONFIG_SECURE_BOOT), yy)
 837 ALL-$(CONFIG_SPL_FRAMEWORK) += u-boot-ivt.img
 838 else
 839 ALL-$(CONFIG_SPL_FRAMEWORK) += u-boot.img
 840 endif
 841 endif
 842 ALL-$(CONFIG_TPL) += tpl/u-boot-tpl.bin
 843 ALL-$(CONFIG_OF_SEPARATE) += u-boot.dtb
 844 ifeq ($(CONFIG_SPL_FRAMEWORK),y)
 845 ALL-$(CONFIG_OF_SEPARATE) += u-boot-dtb.img
 846 endif
 847 ALL-$(CONFIG_OF_HOSTFILE) += u-boot.dtb
 848 ifneq ($(CONFIG_SPL_TARGET),)
 849 ALL-$(CONFIG_SPL) += $(CONFIG_SPL_TARGET:"%"=%)
 850 endif
 851 ALL-$(CONFIG_REMAKE_ELF) += u-boot.elf
 852 ALL-$(CONFIG_EFI_APP) += u-boot-app.efi
 853 ALL-$(CONFIG_EFI_STUB) += u-boot-payload.efi
 854
 855 ifneq ($(BUILD_ROM)$(CONFIG_BUILD_ROM),)
 856 ALL-$(CONFIG_X86_RESET_VECTOR) += u-boot.rom
 857 endif
 858
 859 # Build a combined spl + u-boot image for sunxi
 860 ifeq ($(CONFIG_ARCH_SUNXI)$(CONFIG_SPL),yy)
 861 ALL-y += u-boot-sunxi-with-spl.bin
 862 endif
 863
 864 # enable combined SPL/u-boot/dtb rules for tegra
 865 ifeq ($(CONFIG_TEGRA)$(CONFIG_SPL),yy)
 866 ALL-y += u-boot-tegra.bin u-boot-nodtb-tegra.bin
 867 ALL-$(CONFIG_OF_SEPARATE) += u-boot-dtb-tegra.bin
 868 endif
 869
 870 ALL-$(CONFIG_ARCH_MEDIATEK) += u-boot-mtk.bin
 871
 872 # Add optional build target if defined in board/cpu/soc headers
 873 ifneq ($(CONFIG_BUILD_TARGET),)
 874 ALL-y += $(CONFIG_BUILD_TARGET:"%"=%)
 875 endif
 876
 877 ifneq ($(CONFIG_SYS_INIT_SP_BSS_OFFSET),)
 878 ALL-y += init_sp_bss_offset_check
 879 endif
 880
 881 ifeq ($(CONFIG_MPC85xx)$(CONFIG_OF_SEPARATE),yy)
 882 ALL-y += u-boot-with-dtb.bin
 883 endif
 884
 885 LDFLAGS_u-boot += $(LDFLAGS_FINAL)
 886
 887 # Avoid 'Not enough room for program headers' error on binutils 2.28 onwards.
 888 LDFLAGS_u-boot += $(call ld-option, --no-dynamic-linker)
 889
 890 ifeq ($(CONFIG_ARC)$(CONFIG_NIOS2)$(CONFIG_X86)$(CONFIG_XTENSA),)
 891 LDFLAGS_u-boot += -Ttext $(CONFIG_SYS_TEXT_BASE)
 892 endif
 893
 894 # Normally we fill empty space with 0xff
 895 quiet_cmd_objcopy = OBJCOPY $@
 896 cmd_objcopy = $(OBJCOPY) --gap-fill=0xff $(OBJCOPYFLAGS) \
 897         $(OBJCOPYFLAGS_$(@F)) $< $@
 898
 899 # Provide a version which does not do this, for use by EFI
 900 quiet_cmd_zobjcopy = OBJCOPY $@
 901 cmd_zobjcopy = $(OBJCOPY) $(OBJCOPYFLAGS) $(OBJCOPYFLAGS_$(@F)) $< $@
 902
 903 quiet_cmd_efipayload = OBJCOPY $@
 904 cmd_efipayload = $(OBJCOPY) -I binary -O $(EFIPAYLOAD_BFDTARGET) -B $(EFIPAYLOAD_BFDARCH) $< $@
 905
 906 MKIMAGEOUTPUT ?= /dev/null
 907
 908 quiet_cmd_mkimage = MKIMAGE $@
 909 cmd_mkimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -d $< $@ \
 910         >$(MKIMAGEOUTPUT) $(if $(KBUILD_VERBOSE:0=), && cat $(MKIMAGEOUTPUT))
 911
 912 quiet_cmd_mkfitimage = MKIMAGE $@
 913 cmd_mkfitimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -f $(U_BOOT_ITS) -p $(CONFIG_FIT_EXTERNAL_OFFSET) $@\
 914         >$(MKIMAGEOUTPUT) $(if $(KBUILD_VERBOSE:0=), && cat $(MKIMAGEOUTPUT))
 915
 916 quiet_cmd_cat = CAT     $@
 917 cmd_cat = cat $(filter-out $(PHONY), $^) > $@
 918
 919 append = cat $(filter-out $< $(PHONY), $^) >> $@
 920
 921 quiet_cmd_pad_cat = CAT     $@
 922 cmd_pad_cat = $(cmd_objcopy) && $(append) || rm -f $@
 923
 924 cfg: u-boot.cfg
 925
 926 quiet_cmd_cfgcheck = CFGCHK  $2
 927 cmd_cfgcheck = $(srctree)/scripts/check-config.sh $2 \
 928                 $(srctree)/scripts/config_whitelist.txt $(srctree)
 929
 930 all:            $(ALL-y)
 931 ifeq ($(CONFIG_DEPRECATED),y)
 932         $(warning "You have deprecated configuration options enabled in your .config! Please check your configuration.")
 933 endif
 934 ifeq ($(CONFIG_DM_I2C_COMPAT)$(CONFIG_SANDBOX),y)
 935         @echo >&2 "===================== WARNING ======================"
 936         @echo >&2 "This board uses CONFIG_DM_I2C_COMPAT. Please remove"
 937         @echo >&2 "(possibly in a subsequent patch in your series)"
 938         @echo >&2 "before sending patches to the mailing list."
 939         @echo >&2 "===================================================="
 940 endif
 941 ifeq ($(CONFIG_MMC),y)
 942 ifneq ($(CONFIG_DM_MMC)$(CONFIG_OF_CONTROL)$(CONFIG_BLK),yyy)
 943         @echo >&2 "===================== WARNING ======================"
 944         @echo >&2 "This board does not use CONFIG_DM_MMC. Please update"
 945         @echo >&2 "the board to use CONFIG_DM_MMC before the v2019.04 release."
 946         @echo >&2 "Failure to update by the deadline may result in board removal."
 947         @echo >&2 "See doc/driver-model/MIGRATION.txt for more info."
 948         @echo >&2 "===================================================="
 949 endif
 950 endif
 951 ifeq ($(CONFIG_USB),y)
 952 ifneq ($(CONFIG_DM_USB)$(CONFIG_OF_CONTROL)$(CONFIG_BLK),yyy)
 953         @echo >&2 "===================== WARNING ======================"
 954         @echo >&2 "This board does not use CONFIG_DM_USB. Please update"
 955         @echo >&2 "the board to use CONFIG_DM_USB before the v2019.07 release."
 956         @echo >&2 "Failure to update by the deadline may result in board removal."
 957         @echo >&2 "See doc/driver-model/MIGRATION.txt for more info."
 958         @echo >&2 "===================================================="
 959 endif
 960 endif
 961 ifeq ($(CONFIG_MVSATA_IDE),y)
 962         @echo >&2 "===================== WARNING ======================"
 963         @echo >&2 "This board does use CONFIG_MVSATA_IDE which is not"
 964         @echo >&2 "ported to driver-model (DM) yet. Please update the storage"
 965         @echo >&2 "controller driver to use CONFIG_AHCI before the v2019.07"
 966         @echo >&2 "release."
 967         @echo >&2 "Failure to update by the deadline may result in board removal."
 968         @echo >&2 "See doc/driver-model/MIGRATION.txt for more info."
 969         @echo >&2 "===================================================="
 970 endif
 971 ifeq ($(CONFIG_LIBATA),y)
 972 ifneq ($(CONFIG_AHCI),y)
 973         @echo >&2 "===================== WARNING ======================"
 974         @echo >&2 "This board does use CONFIG_LIBATA but has CONFIG_AHCI not"
 975         @echo >&2 "enabled. Please update the storage controller driver to use"
 976         @echo >&2 "CONFIG_AHCI before the v2019.07 release."
 977         @echo >&2 "Failure to update by the deadline may result in board removal."
 978         @echo >&2 "See doc/driver-model/MIGRATION.txt for more info."
 979         @echo >&2 "===================================================="
 980 endif
 981 endif
 982 ifeq ($(CONFIG_PCI),y)
 983 ifneq ($(CONFIG_DM_PCI),y)
 984         @echo >&2 "===================== WARNING ======================"
 985         @echo >&2 "This board does not use CONFIG_DM_PCI Please update"
 986         @echo >&2 "the board to use CONFIG_DM_PCI before the v2019.07 release."
 987         @echo >&2 "Failure to update by the deadline may result in board removal."
 988         @echo >&2 "See doc/driver-model/MIGRATION.txt for more info."
 989         @echo >&2 "===================================================="
 990 endif
 991 endif
 992 ifneq ($(CONFIG_LCD)$(CONFIG_VIDEO),)
 993 ifneq ($(CONFIG_DM_VIDEO),y)
 994         @echo >&2 "===================== WARNING ======================"
 995         @echo >&2 "This board does not use CONFIG_DM_VIDEO Please update"
 996         @echo >&2 "the board to use CONFIG_DM_VIDEO before the v2019.07 release."
 997         @echo >&2 "Failure to update by the deadline may result in board removal."
 998         @echo >&2 "See doc/driver-model/MIGRATION.txt for more info."
 999         @echo >&2 "===================================================="
1000 endif
1001 endif
1002 ifeq ($(CONFIG_OF_EMBED),y)
1003         @echo >&2 "===================== WARNING ======================"
1004         @echo >&2 "CONFIG_OF_EMBED is enabled. This option should only"
1005         @echo >&2 "be used for debugging purposes. Please use"
1006         @echo >&2 "CONFIG_OF_SEPARATE for boards in mainline."
1007         @echo >&2 "See doc/README.fdt-control for more info."
1008         @echo >&2 "===================================================="
1009 endif
1010 ifeq ($(CONFIG_SPI),y)
1011 ifneq ($(CONFIG_DM_SPI)$(CONFIG_OF_CONTROL),yy)
1012         @echo >&2 "===================== WARNING ======================"
1013         @echo >&2 "This board does not use CONFIG_DM_SPI. Please update"
1014         @echo >&2 "the board before v2019.04 for no dm conversion"
1015         @echo >&2 "and v2019.07 for partially dm converted drivers."
1016         @echo >&2 "Failure to update can lead to driver/board removal"
1017         @echo >&2 "See doc/driver-model/MIGRATION.txt for more info."
1018         @echo >&2 "===================================================="
1019 endif
1020 endif
1021 ifeq ($(CONFIG_SPI_FLASH),y)
1022 ifneq ($(CONFIG_DM_SPI_FLASH)$(CONFIG_OF_CONTROL),yy)
1023         @echo >&2 "===================== WARNING ======================"
1024         @echo >&2 "This board does not use CONFIG_DM_SPI_FLASH. Please update"
1025         @echo >&2 "the board to use CONFIG_SPI_FLASH before the v2019.07 release."
1026         @echo >&2 "Failure to update by the deadline may result in board removal."
1027         @echo >&2 "See doc/driver-model/MIGRATION.txt for more info."
1028         @echo >&2 "===================================================="
1029 endif
1030 endif
1031 ifneq ($(CONFIG_WATCHDOG)$(CONFIG_HW_WATCHDOG),)
1032 ifneq ($(CONFIG_WDT),y)
1033         @echo >&2 "===================== WARNING ======================"
1034         @echo >&2 "This board does not use CONFIG_WDT (DM watchdog support)."
1035         @echo >&2 "Please update the board to use CONFIG_WDT before the"
1036         @echo >&2 "v2019.10 release."
1037         @echo >&2 "Failure to update by the deadline may result in board removal."
1038         @echo >&2 "See doc/driver-model/MIGRATION.txt for more info."
1039         @echo >&2 "===================================================="
1040 endif
1041 endif
1042         @# Check that this build does not use CONFIG options that we do not
1043         @# know about unless they are in Kconfig. All the existing CONFIG
1044         @# options are whitelisted, so new ones should not be added.
1045         $(call cmd,cfgcheck,u-boot.cfg)
1046
1047 PHONY += dtbs
1048 dtbs: dts/dt.dtb
1049         @:
1050 dts/dt.dtb: u-boot
1051         $(Q)$(MAKE) $(build)=dts dtbs
1052
1053 quiet_cmd_copy = COPY    $@
1054       cmd_copy = cp $< $@
1055
1056 ifeq ($(CONFIG_MULTI_DTB_FIT),y)
1057
1058 ifeq ($(CONFIG_MULTI_DTB_FIT_LZO),y)
1059 FINAL_DTB_CONTAINER = fit-dtb.blob.lzo
1060 else ifeq ($(CONFIG_MULTI_DTB_FIT_GZIP),y)
1061 FINAL_DTB_CONTAINER = fit-dtb.blob.gz
1062 else
1063 FINAL_DTB_CONTAINER = fit-dtb.blob
1064 endif
1065
1066 fit-dtb.blob.gz: fit-dtb.blob
1067         @gzip -kf9 $< > $@
1068
1069 fit-dtb.blob.lzo: fit-dtb.blob
1070         @lzop -f9 $< > $@
1071
1072 fit-dtb.blob: dts/dt.dtb FORCE
1073         $(call if_changed,mkimage)
1074 ifneq ($(SOURCE_DATE_EPOCH),)
1075         touch -d @$(SOURCE_DATE_EPOCH) fit-dtb.blob
1076         chmod 0600 fit-dtb.blob
1077 endif
1078
1079 MKIMAGEFLAGS_fit-dtb.blob = -f auto -A $(ARCH) -T firmware -C none -O u-boot \
1080         -a 0 -e 0 -E \
1081         $(patsubst %,-b arch/$(ARCH)/dts/%.dtb,$(subst ",,$(CONFIG_OF_LIST))) -d /dev/null
1082
1083 ifneq ($(EXT_DTB),)
1084 u-boot-fit-dtb.bin: u-boot-nodtb.bin $(EXT_DTB)
1085                 $(call if_changed,cat)
1086 else
1087 u-boot-fit-dtb.bin: u-boot-nodtb.bin $(FINAL_DTB_CONTAINER)
1088         $(call if_changed,cat)
1089 endif
1090
1091 u-boot.bin: u-boot-fit-dtb.bin FORCE
1092         $(call if_changed,copy)
1093 else ifeq ($(CONFIG_OF_SEPARATE),y)
1094 u-boot-dtb.bin: u-boot-nodtb.bin dts/dt.dtb FORCE
1095         $(call if_changed,cat)
1096
1097 u-boot.bin: u-boot-dtb.bin FORCE
1098         $(call if_changed,copy)
1099 else
1100 u-boot.bin: u-boot-nodtb.bin FORCE
1101         $(call if_changed,copy)
1102 endif
1103
1104 %.imx: %.bin
1105         $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@
1106         $(BOARD_SIZE_CHECK)
1107
1108 %.vyb: %.imx
1109         $(Q)$(MAKE) $(build)=arch/arm/cpu/armv7/vf610 $@
1110
1111 quiet_cmd_copy = COPY    $@
1112       cmd_copy = cp $< $@
1113
1114 u-boot.dtb: dts/dt.dtb
1115         $(call cmd,copy)
1116
1117 OBJCOPYFLAGS_u-boot.hex := -O ihex
1118
1119 OBJCOPYFLAGS_u-boot.srec := -O srec
1120
1121 u-boot.hex u-boot.srec: u-boot FORCE
1122         $(call if_changed,objcopy)
1123
1124 OBJCOPYFLAGS_u-boot-elf.srec := $(OBJCOPYFLAGS_u-boot.srec)
1125
1126 u-boot-elf.srec: u-boot.elf FORCE
1127         $(call if_changed,objcopy)
1128
1129 OBJCOPYFLAGS_u-boot-spl.srec = $(OBJCOPYFLAGS_u-boot.srec)
1130
1131 spl/u-boot-spl.srec: spl/u-boot-spl FORCE
1132         $(call if_changed,objcopy)
1133
1134 %.scif: %.srec
1135         $(Q)$(MAKE) $(build)=arch/arm/mach-rmobile $@
1136
1137 OBJCOPYFLAGS_u-boot-nodtb.bin := -O binary \
1138                 $(if $(CONFIG_X86_16BIT_INIT),-R .start16 -R .resetvec) \
1139                 $(if $(CONFIG_MPC85XX_HAVE_RESET_VECTOR),-R .bootpg -R .resetvec)
1140
1141 OBJCOPYFLAGS_u-boot-spl.hex = $(OBJCOPYFLAGS_u-boot.hex)
1142
1143 spl/u-boot-spl.hex: spl/u-boot-spl FORCE
1144         $(call if_changed,objcopy)
1145
1146 binary_size_check: u-boot-nodtb.bin FORCE
1147         @file_size=$(shell wc -c u-boot-nodtb.bin | awk '{print $$1}') ; \
1148         map_size=$(shell cat u-boot.map | \
1149                 awk '/_image_copy_start/ {start = $$1} /_image_binary_end/ {end = $$1} END {if (start != "" && end != "") print "ibase=16; " toupper(end) " - " toupper(start)}' \
1150                 | sed 's/0X//g' \
1151                 | bc); \
1152         if [ "" != "$$map_size" ]; then \
1153                 if test $$map_size -ne $$file_size; then \
1154                         echo "u-boot.map shows a binary size of $$map_size" >&2 ; \
1155                         echo "  but u-boot-nodtb.bin shows $$file_size" >&2 ; \
1156                         exit 1; \
1157                 fi \
1158         fi
1159
1160 ifneq ($(CONFIG_SYS_INIT_SP_BSS_OFFSET),)
1161 ifneq ($(CONFIG_SYS_MALLOC_F_LEN),)
1162 subtract_sys_malloc_f_len = space=$$(($${space} - $(CONFIG_SYS_MALLOC_F_LEN)))
1163 else
1164 subtract_sys_malloc_f_len = true
1165 endif
1166 # The 1/4 margin below is somewhat arbitrary. The likely initial SP usage is
1167 # so low that the DTB could probably use 90%+ of the available space, for
1168 # current values of CONFIG_SYS_INIT_SP_BSS_OFFSET at least. However, let's be
1169 # safe for now and tweak this later if space becomes tight.
1170 # A rejected alternative would be to check that some absolute minimum stack
1171 # space was available. However, since CONFIG_SYS_INIT_SP_BSS_OFFSET is
1172 # deliberately build-specific, to take account of build-to-build stack usage
1173 # differences due to different feature sets, there is no common absolute value
1174 # to check against.
1175 init_sp_bss_offset_check: u-boot.dtb FORCE
1176         @dtb_size=$(shell wc -c u-boot.dtb | awk '{print $$1}') ; \
1177         space=$(CONFIG_SYS_INIT_SP_BSS_OFFSET) ; \
1178         $(subtract_sys_malloc_f_len) ; \
1179         quarter_space=$$(($${space} / 4)) ; \
1180         if [ $${dtb_size} -gt $${quarter_space} ]; then \
1181                 echo "u-boot.dtb is larger than 1 quarter of " >&2 ; \
1182                 echo "(CONFIG_SYS_INIT_SP_BSS_OFFSET - CONFIG_SYS_MALLOC_F_LEN)" >&2 ; \
1183                 exit 1 ; \
1184         fi
1185 endif
1186
1187 u-boot-nodtb.bin: u-boot FORCE
1188         $(call if_changed,objcopy)
1189         $(call DO_STATIC_RELA,$<,$@,$(CONFIG_SYS_TEXT_BASE))
1190         $(BOARD_SIZE_CHECK)
1191
1192 u-boot.ldr:     u-boot
1193                 $(CREATE_LDR_ENV)
1194                 $(LDR) -T $(CONFIG_CPU) -c $@ $< $(LDR_FLAGS)
1195                 $(BOARD_SIZE_CHECK)
1196
1197 # binman
1198 # ---------------------------------------------------------------------------
1199 # Use 'make BINMAN_DEBUG=1' to enable debugging
1200 quiet_cmd_binman = BINMAN  $@
1201 cmd_binman = $(srctree)/tools/binman/binman -u -d u-boot.dtb -O . -m \
1202                 -I . -I $(srctree) -I $(srctree)/board/$(BOARDDIR) \
1203                 $(if $(BINMAN_DEBUG),-D) $(BINMAN_$(@F)) $<
1204
1205 OBJCOPYFLAGS_u-boot.ldr.hex := -I binary -O ihex
1206
1207 OBJCOPYFLAGS_u-boot.ldr.srec := -I binary -O srec
1208
1209 u-boot.ldr.hex u-boot.ldr.srec: u-boot.ldr FORCE
1210         $(call if_changed,objcopy)
1211
1212 #
1213 # U-Boot entry point, needed for booting of full-blown U-Boot
1214 # from the SPL U-Boot version.
1215 #
1216 ifndef CONFIG_SYS_UBOOT_START
1217 CONFIG_SYS_UBOOT_START := 0
1218 endif
1219
1220 # Boards with more complex image requirments can provide an .its source file
1221 # or a generator script
1222 ifneq ($(CONFIG_SPL_FIT_SOURCE),"")
1223 U_BOOT_ITS = $(subst ",,$(CONFIG_SPL_FIT_SOURCE))
1224 else
1225 ifneq ($(CONFIG_SPL_FIT_GENERATOR),"")
1226 U_BOOT_ITS := u-boot.its
1227 ifeq ($(CONFIG_SPL_FIT_GENERATOR),"arch/arm/mach-imx/mkimage_fit_atf.sh")
1228 U_BOOT_ITS_DEPS += u-boot-nodtb.bin
1229 endif
1230 ifeq ($(CONFIG_SPL_FIT_GENERATOR),"arch/arm/mach-rockchip/make_fit_atf.py")
1231 U_BOOT_ITS_DEPS += u-boot
1232 endif
1233 $(U_BOOT_ITS): $(U_BOOT_ITS_DEPS) FORCE
1234         $(srctree)/$(CONFIG_SPL_FIT_GENERATOR) \
1235         $(patsubst %,arch/$(ARCH)/dts/%.dtb,$(subst ",,$(CONFIG_OF_LIST))) > $@
1236 endif
1237 endif
1238
1239 ifdef CONFIG_SPL_LOAD_FIT
1240 MKIMAGEFLAGS_u-boot.img = -f auto -A $(ARCH) -T firmware -C none -O u-boot \
1241         -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \
1242         -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board" -E \
1243         $(patsubst %,-b arch/$(ARCH)/dts/%.dtb,$(subst ",,$(CONFIG_OF_LIST)))
1244 else
1245 MKIMAGEFLAGS_u-boot.img = -A $(ARCH) -T firmware -C none -O u-boot \
1246         -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \
1247         -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board"
1248 MKIMAGEFLAGS_u-boot-ivt.img = -A $(ARCH) -T firmware_ivt -C none -O u-boot \
1249         -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \
1250         -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board"
1251 u-boot-ivt.img: MKIMAGEOUTPUT = u-boot-ivt.img.log
1252 CLEAN_FILES += u-boot-ivt.img.log u-boot-dtb.imx.log SPL.log u-boot.imx.log
1253 endif
1254
1255 MKIMAGEFLAGS_u-boot-dtb.img = $(MKIMAGEFLAGS_u-boot.img)
1256
1257 MKIMAGEFLAGS_u-boot.kwb = -n $(srctree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%) \
1258         -T kwbimage -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE)
1259
1260 MKIMAGEFLAGS_u-boot-spl.kwb = -n $(srctree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%) \
1261         -T kwbimage -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE) \
1262         $(if $(KEYDIR),-k $(KEYDIR))
1263
1264 MKIMAGEFLAGS_u-boot.pbl = -n $(srctree)/$(CONFIG_SYS_FSL_PBL_RCW:"%"=%) \
1265                 -R $(srctree)/$(CONFIG_SYS_FSL_PBL_PBI:"%"=%) -T pblimage
1266
1267 u-boot-dtb.img u-boot.img u-boot.kwb u-boot.pbl u-boot-ivt.img: \
1268                 $(if $(CONFIG_SPL_LOAD_FIT),u-boot-nodtb.bin dts/dt.dtb,u-boot.bin) FORCE
1269         $(call if_changed,mkimage)
1270         $(BOARD_SIZE_CHECK)
1271
1272 ifeq ($(CONFIG_SPL_LOAD_FIT_FULL),y)
1273 MKIMAGEFLAGS_u-boot.itb =
1274 else
1275 MKIMAGEFLAGS_u-boot.itb = -E
1276 endif
1277
1278 u-boot.itb: u-boot-nodtb.bin dts/dt.dtb $(U_BOOT_ITS) FORCE
1279         $(call if_changed,mkfitimage)
1280         $(BOARD_SIZE_CHECK)
1281
1282 u-boot-spl.kwb: u-boot.img spl/u-boot-spl.bin FORCE
1283         $(call if_changed,mkimage)
1284
1285 u-boot.sha1:    u-boot.bin
1286                 tools/ubsha1 u-boot.bin
1287
1288 u-boot.dis:     u-boot
1289                 $(OBJDUMP) -d $< > $@
1290
1291 ifneq ($(CONFIG_SPL_PAYLOAD),)
1292 SPL_PAYLOAD := $(CONFIG_SPL_PAYLOAD:"%"=%)
1293 else
1294 SPL_PAYLOAD := u-boot.bin
1295 endif
1296
1297 SPL_IMAGE := $(CONFIG_SPL_IMAGE:"%"=%)
1298
1299 OBJCOPYFLAGS_u-boot-with-spl.bin = -I binary -O binary \
1300                                    --pad-to=$(CONFIG_SPL_PAD_TO)
1301 u-boot-with-spl.bin: $(SPL_IMAGE) $(SPL_PAYLOAD) FORCE
1302         $(call if_changed,pad_cat)
1303
1304 ifeq ($(CONFIG_ARCH_LPC32XX)$(CONFIG_SPL),yy)
1305 MKIMAGEFLAGS_lpc32xx-spl.img = -T lpc32xximage -a $(CONFIG_SPL_TEXT_BASE)
1306
1307 lpc32xx-spl.img: spl/u-boot-spl.bin FORCE
1308         $(call if_changed,mkimage)
1309
1310 OBJCOPYFLAGS_lpc32xx-boot-0.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO)
1311
1312 lpc32xx-boot-0.bin: lpc32xx-spl.img FORCE
1313         $(call if_changed,objcopy)
1314
1315 OBJCOPYFLAGS_lpc32xx-boot-1.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO)
1316
1317 lpc32xx-boot-1.bin: lpc32xx-spl.img FORCE
1318         $(call if_changed,objcopy)
1319
1320 lpc32xx-full.bin: lpc32xx-boot-0.bin lpc32xx-boot-1.bin u-boot.img FORCE
1321         $(call if_changed,cat)
1322
1323 CLEAN_FILES += lpc32xx-*
1324 endif
1325
1326 OBJCOPYFLAGS_u-boot-with-tpl.bin = -I binary -O binary \
1327                                    --pad-to=$(CONFIG_TPL_PAD_TO)
1328 tpl/u-boot-with-tpl.bin: tpl/u-boot-tpl.bin u-boot.bin FORCE
1329         $(call if_changed,pad_cat)
1330
1331 SPL: spl/u-boot-spl.bin FORCE
1332         $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@
1333
1334 ifeq ($(CONFIG_ARCH_IMX8M)$(CONFIG_ARCH_IMX8), y)
1335 flash.bin: spl/u-boot-spl.bin u-boot.itb FORCE
1336         $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@
1337 endif
1338
1339 u-boot-with-spl.imx u-boot-with-nand-spl.imx: SPL u-boot.bin FORCE
1340         $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@
1341
1342 MKIMAGEFLAGS_u-boot.ubl = -n $(UBL_CONFIG) -T ublimage -e $(CONFIG_SYS_TEXT_BASE)
1343
1344 u-boot.ubl: u-boot-with-spl.bin FORCE
1345         $(call if_changed,mkimage)
1346
1347 MKIMAGEFLAGS_u-boot-spl.ais = -s -n $(if $(CONFIG_AIS_CONFIG_FILE), \
1348         $(srctree)/$(CONFIG_AIS_CONFIG_FILE:"%"=%),"/dev/null") \
1349         -T aisimage -e $(CONFIG_SPL_TEXT_BASE)
1350 spl/u-boot-spl.ais: spl/u-boot-spl.bin FORCE
1351         $(call if_changed,mkimage)
1352
1353 OBJCOPYFLAGS_u-boot.ais = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO)
1354 u-boot.ais: spl/u-boot-spl.ais u-boot.img FORCE
1355         $(call if_changed,pad_cat)
1356
1357 u-boot-signed.sb: u-boot.bin spl/u-boot-spl.bin
1358         $(Q)$(MAKE) $(build)=arch/arm/cpu/arm926ejs/mxs u-boot-signed.sb
1359 u-boot.sb: u-boot.bin spl/u-boot-spl.bin
1360         $(Q)$(MAKE) $(build)=arch/arm/cpu/arm926ejs/mxs u-boot.sb
1361
1362 # On x600 (SPEAr600) U-Boot is appended to U-Boot SPL.
1363 # Both images are created using mkimage (crc etc), so that the ROM
1364 # bootloader can check its integrity. Padding needs to be done to the
1365 # SPL image (with mkimage header) and not the binary. Otherwise the resulting image
1366 # which is loaded/copied by the ROM bootloader to SRAM doesn't fit.
1367 # The resulting image containing both U-Boot images is called u-boot.spr
1368 MKIMAGEFLAGS_u-boot-spl.img = -A $(ARCH) -T firmware -C none \
1369         -a $(CONFIG_SPL_TEXT_BASE) -e $(CONFIG_SPL_TEXT_BASE) -n XLOADER
1370 spl/u-boot-spl.img: spl/u-boot-spl.bin FORCE
1371         $(call if_changed,mkimage)
1372
1373 OBJCOPYFLAGS_u-boot.spr = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) \
1374                           --gap-fill=0xff
1375 u-boot.spr: spl/u-boot-spl.img u-boot.img FORCE
1376         $(call if_changed,pad_cat)
1377
1378 ifneq ($(CONFIG_ARCH_SOCFPGA),)
1379 quiet_cmd_socboot = SOCBOOT $@
1380 cmd_socboot = cat       spl/u-boot-spl.sfp spl/u-boot-spl.sfp   \
1381                         spl/u-boot-spl.sfp spl/u-boot-spl.sfp   \
1382                         u-boot.img > $@ || rm -f $@
1383 u-boot-with-spl.sfp: spl/u-boot-spl.sfp u-boot.img FORCE
1384         $(call if_changed,socboot)
1385 endif
1386
1387 ifeq ($(CONFIG_MPC85xx)$(CONFIG_OF_SEPARATE),yy)
1388 u-boot-with-dtb.bin: u-boot.bin u-boot.dtb \
1389         $(if $(CONFIG_MPC85XX_HAVE_RESET_VECTOR), u-boot-br.bin) FORCE
1390         $(call if_changed,binman)
1391
1392 ifeq ($(CONFIG_MPC85XX_HAVE_RESET_VECTOR),y)
1393 OBJCOPYFLAGS_u-boot-br.bin := -O binary -j .bootpg -j .resetvec
1394 u-boot-br.bin: u-boot FORCE
1395         $(call if_changed,objcopy)
1396 endif
1397 endif
1398
1399 # x86 uses a large ROM. We fill it with 0xff, put the 16-bit stuff (including
1400 # reset vector) at the top, Intel ME descriptor at the bottom, and U-Boot in
1401 # the middle. This is handled by binman based on an image description in the
1402 # board's device tree.
1403 ifneq ($(CONFIG_X86_RESET_VECTOR),)
1404 rom: u-boot.rom FORCE
1405
1406 refcode.bin: $(srctree)/board/$(BOARDDIR)/refcode.bin FORCE
1407         $(call if_changed,copy)
1408
1409 quiet_cmd_ldr = LD      $@
1410 cmd_ldr = $(LD) $(LDFLAGS_$(@F)) \
1411                $(filter-out FORCE,$^) -o $@
1412
1413 u-boot.rom: u-boot-x86-16bit.bin u-boot.bin \
1414                 $(if $(CONFIG_SPL_X86_16BIT_INIT),spl/u-boot-spl.bin) \
1415                 $(if $(CONFIG_TPL_X86_16BIT_INIT),tpl/u-boot-tpl.bin) \
1416                 $(if $(CONFIG_HAVE_REFCODE),refcode.bin) FORCE
1417         $(call if_changed,binman)
1418
1419 OBJCOPYFLAGS_u-boot-x86-16bit.bin := -O binary -j .start16 -j .resetvec
1420 u-boot-x86-16bit.bin: u-boot FORCE
1421         $(call if_changed,objcopy)
1422 endif
1423
1424 ifneq ($(CONFIG_ARCH_SUNXI),)
1425 ifeq ($(CONFIG_ARM64),)
1426 u-boot-sunxi-with-spl.bin: spl/sunxi-spl.bin u-boot.img u-boot.dtb FORCE
1427         $(call if_changed,binman)
1428 else
1429 u-boot-sunxi-with-spl.bin: spl/sunxi-spl.bin u-boot.itb FORCE
1430         $(call if_changed,cat)
1431 endif
1432 endif
1433
1434 ifneq ($(CONFIG_TEGRA),)
1435 ifneq ($(CONFIG_BINMAN),)
1436 # Makes u-boot-dtb-tegra.bin u-boot-tegra.bin u-boot-nodtb-tegra.bin
1437 %-dtb-tegra.bin %-tegra.bin %-nodtb-tegra.bin: \
1438                 spl/%-spl %.bin FORCE
1439         $(call if_changed,binman)
1440 else
1441 OBJCOPYFLAGS_u-boot-nodtb-tegra.bin = -O binary --pad-to=$(CONFIG_SYS_TEXT_BASE)
1442 u-boot-nodtb-tegra.bin: spl/u-boot-spl u-boot-nodtb.bin FORCE
1443         $(call if_changed,pad_cat)
1444
1445 OBJCOPYFLAGS_u-boot-tegra.bin = -O binary --pad-to=$(CONFIG_SYS_TEXT_BASE)
1446 u-boot-tegra.bin: spl/u-boot-spl u-boot.bin FORCE
1447         $(call if_changed,pad_cat)
1448
1449 u-boot-dtb-tegra.bin: u-boot-tegra.bin FORCE
1450         $(call if_changed,copy)
1451 endif  # binman
1452 endif
1453
1454 OBJCOPYFLAGS_u-boot-app.efi := $(OBJCOPYFLAGS_EFI)
1455 u-boot-app.efi: u-boot FORCE
1456         $(call if_changed,zobjcopy)
1457
1458 u-boot.bin.o: u-boot.bin FORCE
1459         $(call if_changed,efipayload)
1460
1461 u-boot-payload.lds: $(LDSCRIPT_EFI) FORCE
1462         $(call if_changed_dep,cpp_lds)
1463
1464 # Rule to link the EFI payload which contains a stub and a U-Boot binary
1465 quiet_cmd_u-boot_payload ?= LD      $@
1466       cmd_u-boot_payload ?= $(LD) $(LDFLAGS_EFI_PAYLOAD) -o $@ \
1467       -T u-boot-payload.lds arch/x86/cpu/call32.o \
1468       lib/efi/efi.o lib/efi/efi_stub.o u-boot.bin.o \
1469       $(addprefix arch/$(ARCH)/lib/,$(EFISTUB))
1470
1471 u-boot-payload: u-boot.bin.o u-boot-payload.lds FORCE
1472         $(call if_changed,u-boot_payload)
1473
1474 OBJCOPYFLAGS_u-boot-payload.efi := $(OBJCOPYFLAGS_EFI)
1475 u-boot-payload.efi: u-boot-payload FORCE
1476         $(call if_changed,zobjcopy)
1477
1478 u-boot-img.bin: spl/u-boot-spl.bin u-boot.img FORCE
1479         $(call if_changed,cat)
1480
1481 #Add a target to create boot binary having SPL binary in PBI format
1482 #concatenated with u-boot binary. It is need by PowerPC SoC having
1483 #internal SRAM <= 512KB.
1484 MKIMAGEFLAGS_u-boot-spl.pbl = -n $(srctree)/$(CONFIG_SYS_FSL_PBL_RCW:"%"=%) \
1485                 -R $(srctree)/$(CONFIG_SYS_FSL_PBL_PBI:"%"=%) -T pblimage \
1486                 -A $(ARCH) -a $(CONFIG_SPL_TEXT_BASE)
1487
1488 spl/u-boot-spl.pbl: spl/u-boot-spl.bin FORCE
1489         $(call if_changed,mkimage)
1490
1491 ifeq ($(ARCH),arm)
1492 UBOOT_BINLOAD := u-boot.img
1493 else
1494 ifeq ($(CONFIG_MPC85xx)$(CONFIG_OF_SEPARATE),yy)
1495 UBOOT_BINLOAD := u-boot-with-dtb.bin
1496 else
1497 UBOOT_BINLOAD := u-boot.bin
1498 endif
1499 endif
1500
1501 OBJCOPYFLAGS_u-boot-with-spl-pbl.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) \
1502                           --gap-fill=0xff
1503
1504 u-boot-with-spl-pbl.bin: spl/u-boot-spl.pbl $(UBOOT_BINLOAD) FORCE
1505         $(call if_changed,pad_cat)
1506
1507 # PPC4xx needs the SPL at the end of the image, since the reset vector
1508 # is located at 0xfffffffc. So we can't use the "u-boot-img.bin" target
1509 # and need to introduce a new build target with the full blown U-Boot
1510 # at the start padded up to the start of the SPL image. And then concat
1511 # the SPL image to the end.
1512
1513 OBJCOPYFLAGS_u-boot-img-spl-at-end.bin := -I binary -O binary \
1514         --pad-to=$(CONFIG_UBOOT_PAD_TO) --gap-fill=0xff
1515 u-boot-img-spl-at-end.bin: u-boot.img spl/u-boot-spl.bin FORCE
1516         $(call if_changed,pad_cat)
1517
1518 # Create a new ELF from a raw binary file.
1519 ifndef PLATFORM_ELFENTRY
1520   PLATFORM_ELFENTRY = "_start"
1521 endif
1522 quiet_cmd_u-boot-elf ?= LD      $@
1523         cmd_u-boot-elf ?= $(LD) u-boot-elf.o -o $@ \
1524         --defsym=$(PLATFORM_ELFENTRY)=$(CONFIG_SYS_TEXT_BASE) \
1525         -Ttext=$(CONFIG_SYS_TEXT_BASE)
1526 u-boot.elf: u-boot.bin
1527         $(Q)$(OBJCOPY) -I binary $(PLATFORM_ELFFLAGS) $< u-boot-elf.o
1528         $(call if_changed,u-boot-elf)
1529
1530 # MediaTek's ARM-based u-boot needs a header to contains its load address
1531 # which is parsed by the BootROM.
1532 # If the SPL build is enabled, the header will be added to the spl binary,
1533 # and the spl binary and the u-boot.img will be combined into one file.
1534 # Otherwise the header will be added to the u-boot.bin directly.
1535
1536 ifeq ($(CONFIG_SPL),y)
1537 spl/u-boot-spl-mtk.bin: spl/u-boot-spl
1538
1539 u-boot-mtk.bin: u-boot.dtb u-boot.img spl/u-boot-spl-mtk.bin FORCE
1540         $(call if_changed,binman)
1541 else
1542 MKIMAGEFLAGS_u-boot-mtk.bin = -T mtk_image \
1543         -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE) \
1544         -n "$(patsubst "%",%,$(CONFIG_MTK_BROM_HEADER_INFO))"
1545
1546 u-boot-mtk.bin: u-boot.bin FORCE
1547         $(call if_changed,mkimage)
1548 endif
1549
1550 ARCH_POSTLINK := $(wildcard $(srctree)/arch/$(ARCH)/Makefile.postlink)
1551
1552 # Rule to link u-boot
1553 # May be overridden by arch/$(ARCH)/config.mk
1554 quiet_cmd_u-boot__ ?= LD      $@
1555       cmd_u-boot__ ?= $(LD) $(LDFLAGS) $(LDFLAGS_u-boot) -o $@ \
1556       -T u-boot.lds $(u-boot-init)                             \
1557       --start-group $(u-boot-main) --end-group                 \
1558       $(PLATFORM_LIBS) -Map u-boot.map;                        \
1559       $(if $(ARCH_POSTLINK), $(MAKE) -f $(ARCH_POSTLINK) $@, true)
1560
1561 quiet_cmd_smap = GEN     common/system_map.o
1562 cmd_smap = \
1563         smap=`$(call SYSTEM_MAP,u-boot) | \
1564                 awk '$$2 ~ /[tTwW]/ {printf $$1 $$3 "\\\\000"}'` ; \
1565         $(CC) $(c_flags) -DSYSTEM_MAP="\"$${smap}\"" \
1566                 -c $(srctree)/common/system_map.c -o common/system_map.o
1567
1568 u-boot: $(u-boot-init) $(u-boot-main) u-boot.lds FORCE
1569         +$(call if_changed,u-boot__)
1570 ifeq ($(CONFIG_KALLSYMS),y)
1571         $(call cmd,smap)
1572         $(call cmd,u-boot__) common/system_map.o
1573 endif
1574
1575 ifeq ($(CONFIG_RISCV),y)
1576         @tools/prelink-riscv $@ 0
1577 endif
1578
1579 quiet_cmd_sym ?= SYM     $@
1580       cmd_sym ?= $(OBJDUMP) -t $< > $@
1581 u-boot.sym: u-boot FORCE
1582         $(call if_changed,sym)
1583
1584 # The actual objects are generated when descending,
1585 # make sure no implicit rule kicks in
1586 $(sort $(u-boot-init) $(u-boot-main)): $(u-boot-dirs) ;
1587
1588 # Handle descending into subdirectories listed in $(vmlinux-dirs)
1589 # Preset locale variables to speed up the build process. Limit locale
1590 # tweaks to this spot to avoid wrong language settings when running
1591 # make menuconfig etc.
1592 # Error messages still appears in the original language
1593
1594 PHONY += $(u-boot-dirs)
1595 $(u-boot-dirs): prepare scripts
1596         $(Q)$(MAKE) $(build)=$@
1597
1598 tools: prepare
1599 # The "tools" are needed early
1600 $(filter-out tools, $(u-boot-dirs)): tools
1601 # The "examples" conditionally depend on U-Boot (say, when USE_PRIVATE_LIBGCC
1602 # is "yes"), so compile examples after U-Boot is compiled.
1603 examples: $(filter-out examples, $(u-boot-dirs))
1604
1605 define filechk_uboot.release
1606         echo "$(UBOOTVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))"
1607 endef
1608
1609 # Store (new) UBOOTRELEASE string in include/config/uboot.release
1610 include/config/uboot.release: include/config/auto.conf FORCE
1611         $(call filechk,uboot.release)
1612
1613
1614 # Things we need to do before we recursively start building the kernel
1615 # or the modules are listed in "prepare".
1616 # A multi level approach is used. prepareN is processed before prepareN-1.
1617 # archprepare is used in arch Makefiles and when processed asm symlink,
1618 # version.h and scripts_basic is processed / created.
1619
1620 # Listed in dependency order
1621 PHONY += prepare archprepare prepare0 prepare1 prepare2 prepare3
1622
1623 # prepare3 is used to check if we are building in a separate output directory,
1624 # and if so do:
1625 # 1) Check that make has not been executed in the kernel src $(srctree)
1626 prepare3: include/config/uboot.release
1627 ifneq ($(KBUILD_SRC),)
1628         @$(kecho) '  Using $(srctree) as source for U-Boot'
1629         $(Q)if [ -f $(srctree)/.config -o -d $(srctree)/include/config ]; then \
1630                 echo >&2 "  $(srctree) is not clean, please run 'make mrproper'"; \
1631                 echo >&2 "  in the '$(srctree)' directory.";\
1632                 /bin/false; \
1633         fi;
1634 endif
1635
1636 # prepare2 creates a makefile if using a separate output directory
1637 prepare2: prepare3 outputmakefile cfg
1638
1639 prepare1: prepare2 $(version_h) $(timestamp_h) \
1640                    include/config/auto.conf
1641 ifeq ($(wildcard $(LDSCRIPT)),)
1642         @echo >&2 "  Could not find linker script."
1643         @/bin/false
1644 endif
1645
1646 ifeq ($(CONFIG_USE_DEFAULT_ENV_FILE),y)
1647 prepare1: $(defaultenv_h)
1648 endif
1649
1650 archprepare: prepare1 scripts_basic
1651
1652 prepare0: archprepare FORCE
1653         $(Q)$(MAKE) $(build)=.
1654
1655 # All the preparing..
1656 prepare: prepare0
1657
1658 # Generate some files
1659 # ---------------------------------------------------------------------------
1660
1661 define filechk_version.h
1662         (echo \#define PLAIN_VERSION \"$(UBOOTRELEASE)\"; \
1663         echo \#define U_BOOT_VERSION \"U-Boot \" PLAIN_VERSION; \
1664         echo \#define CC_VERSION_STRING \"$$(LC_ALL=C $(CC) --version | head -n 1)\"; \
1665         echo \#define LD_VERSION_STRING \"$$(LC_ALL=C $(LD) --version | head -n 1)\"; )
1666 endef
1667
1668 # The SOURCE_DATE_EPOCH mechanism requires a date that behaves like GNU date.
1669 # The BSD date on the other hand behaves different and would produce errors
1670 # with the misused '-d' switch.  Respect that and search a working date with
1671 # well known pre- and suffixes for the GNU variant of date.
1672 define filechk_timestamp.h
1673         (if test -n "$${SOURCE_DATE_EPOCH}"; then \
1674                 SOURCE_DATE="@$${SOURCE_DATE_EPOCH}"; \
1675                 DATE=""; \
1676                 for date in gdate date.gnu date; do \
1677                         $${date} -u -d "$${SOURCE_DATE}" >/dev/null 2>&1 && DATE="$${date}"; \
1678                 done; \
1679                 if test -n "$${DATE}"; then \
1680                         LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_DATE "%b %d %C%y"'; \
1681                         LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_TIME "%T"'; \
1682                         LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_TZ "%z"'; \
1683                         LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_DMI_DATE "%m/%d/%Y"'; \
1684                         LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_BUILD_DATE 0x%Y%m%d'; \
1685                 else \
1686                         return 42; \
1687                 fi; \
1688         else \
1689                 LC_ALL=C date +'#define U_BOOT_DATE "%b %d %C%y"'; \
1690                 LC_ALL=C date +'#define U_BOOT_TIME "%T"'; \
1691                 LC_ALL=C date +'#define U_BOOT_TZ "%z"'; \
1692                 LC_ALL=C date +'#define U_BOOT_DMI_DATE "%m/%d/%Y"'; \
1693                 LC_ALL=C date +'#define U_BOOT_BUILD_DATE 0x%Y%m%d'; \
1694         fi)
1695 endef
1696
1697 define filechk_defaultenv.h
1698         (grep -v '^#' | \
1699          grep -v '^$$' | \
1700          tr '\n' '\0' | \
1701          sed -e 's/\\\x0/\n/' | \
1702          xxd -i ; echo ", 0x00" ; )
1703 endef
1704
1705 $(version_h): include/config/uboot.release FORCE
1706         $(call filechk,version.h)
1707
1708 $(timestamp_h): $(srctree)/Makefile FORCE
1709         $(call filechk,timestamp.h)
1710
1711 $(defaultenv_h): $(CONFIG_DEFAULT_ENV_FILE:"%"=%) FORCE
1712         $(call filechk,defaultenv.h)
1713
1714 # ---------------------------------------------------------------------------
1715 quiet_cmd_cpp_lds = LDS     $@
1716 cmd_cpp_lds = $(CPP) -Wp,-MD,$(depfile) $(cpp_flags) $(LDPPFLAGS) \
1717                 -D__ASSEMBLY__ -x assembler-with-cpp -std=c99 -P -o $@ $<
1718
1719 u-boot.lds: $(LDSCRIPT) prepare FORCE
1720         $(call if_changed_dep,cpp_lds)
1721
1722 spl/u-boot-spl.bin: spl/u-boot-spl
1723         @:
1724         $(SPL_SIZE_CHECK)
1725
1726 spl/u-boot-spl: tools prepare \
1727                 $(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_SPL_OF_PLATDATA),dts/dt.dtb) \
1728                 $(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_TPL_OF_PLATDATA),dts/dt.dtb)
1729         $(Q)$(MAKE) obj=spl -f $(srctree)/scripts/Makefile.spl all
1730
1731 spl/sunxi-spl.bin: spl/u-boot-spl
1732         @:
1733
1734 spl/sunxi-spl-with-ecc.bin: spl/sunxi-spl.bin
1735         @:
1736
1737 spl/u-boot-spl.sfp: spl/u-boot-spl
1738         @:
1739
1740 spl/boot.bin: spl/u-boot-spl
1741         @:
1742
1743 tpl/u-boot-tpl.bin: tools prepare \
1744                 $(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_SPL_OF_PLATDATA),dts/dt.dtb)
1745         $(Q)$(MAKE) obj=tpl -f $(srctree)/scripts/Makefile.spl all
1746
1747 TAG_SUBDIRS := $(patsubst %,$(srctree)/%,$(u-boot-dirs) include)
1748
1749 FIND := find
1750 FINDFLAGS := -L
1751
1752 tags ctags:
1753                 ctags -w -o ctags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \
1754                                                 -name '*.[chS]' -print`
1755                 ln -s ctags tags
1756
1757 etags:
1758                 etags -a -o etags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \
1759                                                 -name '*.[chS]' -print`
1760 cscope:
1761                 $(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) -name '*.[chS]' -print > \
1762                                                 cscope.files
1763                 cscope -b -q -k
1764
1765 SYSTEM_MAP = \
1766                 $(NM) $1 | \
1767                 grep -v '\(compiled\)\|\(\.o$$\)\|\( [aUw] \)\|\(\.\.ng$$\)\|\(LASH[RL]DI\)' | \
1768                 LC_ALL=C sort
1769 System.map:     u-boot
1770                 @$(call SYSTEM_MAP,$<) > $@
1771
1772 #########################################################################
1773
1774 # ARM relocations should all be R_ARM_RELATIVE (32-bit) or
1775 # R_AARCH64_RELATIVE (64-bit).
1776 checkarmreloc: u-boot
1777         @RELOC="`$(CROSS_COMPILE)readelf -r -W $< | cut -d ' ' -f 4 | \
1778                 grep R_A | sort -u`"; \
1779         if test "$$RELOC" != "R_ARM_RELATIVE" -a \
1780                  "$$RELOC" != "R_AARCH64_RELATIVE"; then \
1781                 echo "$< contains unexpected relocations: $$RELOC"; \
1782                 false; \
1783         fi
1784
1785 envtools: scripts_basic $(version_h) $(timestamp_h)
1786         $(Q)$(MAKE) $(build)=tools/env
1787
1788 tools-only: export TOOLS_ONLY=y
1789 tools-only: scripts_basic $(version_h) $(timestamp_h)
1790         $(Q)$(MAKE) $(build)=tools
1791
1792 tools-all: export HOST_TOOLS_ALL=y
1793 tools-all: envtools tools ;
1794
1795 cross_tools: export CROSS_BUILD_TOOLS=y
1796 cross_tools: tools ;
1797
1798 .PHONY : CHANGELOG
1799 CHANGELOG:
1800         git log --no-merges U-Boot-1_1_5.. | \
1801         unexpand -a | sed -e 's/\s\s*$$//' > $@
1802
1803 #########################################################################
1804
1805 ###
1806 # Cleaning is done on three levels.
1807 # make clean     Delete most generated files
1808 #                Leave enough to build external modules
1809 # make mrproper  Delete the current configuration, and all generated files
1810 # make distclean Remove editor backup files, patch leftover files and the like
1811
1812 # Directories & files removed with 'make clean'
1813 CLEAN_DIRS  += $(MODVERDIR) \
1814                $(foreach d, spl tpl, $(patsubst %,$d/%, \
1815                         $(filter-out include, $(shell ls -1 $d 2>/dev/null))))
1816
1817 CLEAN_FILES += include/bmp_logo.h include/bmp_logo_data.h \
1818                boot* u-boot* MLO* SPL System.map fit-dtb.blob*
1819
1820 # Directories & files removed with 'make mrproper'
1821 MRPROPER_DIRS  += include/config include/generated spl tpl \
1822                   .tmp_objdiff
1823 MRPROPER_FILES += .config .config.old include/autoconf.mk* include/config.h \
1824                   ctags etags tags TAGS cscope* GPATH GTAGS GRTAGS GSYMS \
1825                   drivers/video/fonts/*.S
1826
1827 # clean - Delete most, but leave enough to build external modules
1828 #
1829 clean: rm-dirs  := $(CLEAN_DIRS)
1830 clean: rm-files := $(CLEAN_FILES)
1831
1832 clean-dirs      := $(foreach f,$(u-boot-alldirs),$(if $(wildcard $(srctree)/$f/Makefile),$f))
1833
1834 clean-dirs      := $(addprefix _clean_, $(clean-dirs))
1835
1836 PHONY += $(clean-dirs) clean archclean
1837 $(clean-dirs):
1838         $(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$@)
1839
1840 clean: $(clean-dirs)
1841         $(call cmd,rmdirs)
1842         $(call cmd,rmfiles)
1843         @find $(if $(KBUILD_EXTMOD), $(KBUILD_EXTMOD), .) $(RCS_FIND_IGNORE) \
1844                 \( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \
1845                 -o -name '*.ko.*' -o -name '*.su' \
1846                 -o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \
1847                 -o -name '*.lex.c' -o -name '*.tab.[ch]' \
1848                 -o -name '*.symtypes' -o -name 'modules.order' \
1849                 -o -name modules.builtin -o -name '.tmp_*.o.*' \
1850                 -o -name 'dsdt.aml' -o -name 'dsdt.asl.tmp' -o -name 'dsdt.c' \
1851                 -o -name '*.efi' -o -name '*.gcno' -o -name '*.so' \) \
1852                 -type f -print | xargs rm -f
1853
1854 # mrproper - Delete all generated files, including .config
1855 #
1856 mrproper: rm-dirs  := $(wildcard $(MRPROPER_DIRS))
1857 mrproper: rm-files := $(wildcard $(MRPROPER_FILES))
1858 mrproper-dirs      := $(addprefix _mrproper_,scripts)
1859
1860 PHONY += $(mrproper-dirs) mrproper archmrproper
1861 $(mrproper-dirs):
1862         $(Q)$(MAKE) $(clean)=$(patsubst _mrproper_%,%,$@)
1863
1864 mrproper: clean $(mrproper-dirs)
1865         $(call cmd,rmdirs)
1866         $(call cmd,rmfiles)
1867         @rm -f arch/*/include/asm/arch
1868
1869 # distclean
1870 #
1871 PHONY += distclean
1872
1873 distclean: mrproper
1874         @find $(srctree) $(RCS_FIND_IGNORE) \
1875                 \( -name '*.orig' -o -name '*.rej' -o -name '*~' \
1876                 -o -name '*.bak' -o -name '#*#' -o -name '.*.orig' \
1877                 -o -name '.*.rej' -o -name '*%' -o -name 'core' \
1878                 -o -name '*.pyc' \) \
1879                 -type f -print | xargs rm -f
1880         @rm -f boards.cfg CHANGELOG
1881
1882 backup:
1883         F=`basename $(srctree)` ; cd .. ; \
1884         gtar --force-local -zcvf `LC_ALL=C date "+$$F-%Y-%m-%d-%T.tar.gz"` $$F
1885
1886 help:
1887         @echo  'Cleaning targets:'
1888         @echo  '  clean           - Remove most generated files but keep the config'
1889         @echo  '  mrproper        - Remove all generated files + config + various backup files'
1890         @echo  '  distclean       - mrproper + remove editor backup and patch files'
1891         @echo  ''
1892         @echo  'Configuration targets:'
1893         @$(MAKE) -f $(srctree)/scripts/kconfig/Makefile help
1894         @echo  ''
1895         @echo  'Test targets:'
1896         @echo  ''
1897         @echo  '  check           - Run all automated tests that use sandbox'
1898         @echo  '  qcheck          - Run quick automated tests that use sandbox'
1899         @echo  ''
1900         @echo  'Other generic targets:'
1901         @echo  '  all             - Build all necessary images depending on configuration'
1902         @echo  '  tests           - Build U-Boot for sandbox and run tests'
1903         @echo  '* u-boot          - Build the bare u-boot'
1904         @echo  '  dir/            - Build all files in dir and below'
1905         @echo  '  dir/file.[oisS] - Build specified target only'
1906         @echo  '  dir/file.lst    - Build specified mixed source/assembly target only'
1907         @echo  '                    (requires a recent binutils and recent build (System.map))'
1908         @echo  '  tags/ctags      - Generate ctags file for editors'
1909         @echo  '  etags           - Generate etags file for editors'
1910         @echo  '  cscope          - Generate cscope index'
1911         @echo  '  ubootrelease    - Output the release version string (use with make -s)'
1912         @echo  '  ubootversion    - Output the version stored in Makefile (use with make -s)'
1913         @echo  "  cfg             - Don't build, just create the .cfg files"
1914         @echo  "  envtools        - Build only the target-side environment tools"
1915         @echo  ''
1916         @echo  'Static analysers'
1917         @echo  '  checkstack      - Generate a list of stack hogs'
1918         @echo  '  coccicheck      - Execute static code analysis with Coccinelle'
1919         @echo  ''
1920         @echo  'Documentation targets:'
1921         @$(MAKE) -f $(srctree)/Documentation/Makefile dochelp
1922         @echo  ''
1923         @echo  '  make V=0|1 [targets] 0 => quiet build (default), 1 => verbose build'
1924         @echo  '  make V=2   [targets] 2 => give reason for rebuild of target'
1925         @echo  '  make O=dir [targets] Locate all output files in "dir", including .config'
1926         @echo  '  make C=1   [targets] Check all c source with $$CHECK (sparse by default)'
1927         @echo  '  make C=2   [targets] Force check of all c source with $$CHECK'
1928         @echo  '  make RECORDMCOUNT_WARN=1 [targets] Warn about ignored mcount sections'
1929         @echo  '  make W=n   [targets] Enable extra gcc checks, n=1,2,3 where'
1930         @echo  '                1: warnings which may be relevant and do not occur too often'
1931         @echo  '                2: warnings which occur quite often but may still be relevant'
1932         @echo  '                3: more obscure warnings, can most likely be ignored'
1933         @echo  '                Multiple levels can be combined with W=12 or W=123'
1934         @echo  ''
1935         @echo  'Execute "make" or "make all" to build all targets marked with [*] '
1936         @echo  'For further info see the ./README file'
1937
1938 tests check:
1939         $(srctree)/test/run
1940
1941 qcheck:
1942         $(srctree)/test/run quick
1943
1944 # Documentation targets
1945 # ---------------------------------------------------------------------------
1946 DOC_TARGETS := xmldocs latexdocs pdfdocs htmldocs epubdocs cleandocs \
1947                linkcheckdocs dochelp refcheckdocs
1948 PHONY += $(DOC_TARGETS)
1949 $(DOC_TARGETS): scripts_basic FORCE
1950         $(Q)$(MAKE) $(build)=Documentation $@
1951
1952 endif #ifeq ($(config-targets),1)
1953 endif #ifeq ($(mixed-targets),1)
1954
1955 PHONY += checkstack ubootrelease ubootversion
1956
1957 checkstack:
1958         $(OBJDUMP) -d u-boot $$(find . -name u-boot-spl) | \
1959         $(PERL) $(src)/scripts/checkstack.pl $(ARCH)
1960
1961 ubootrelease:
1962         @echo "$(UBOOTVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))"
1963
1964 ubootversion:
1965         @echo $(UBOOTVERSION)
1966
1967 # Single targets
1968 # ---------------------------------------------------------------------------
1969 # Single targets are compatible with:
1970 # - build with mixed source and output
1971 # - build with separate output dir 'make O=...'
1972 # - external modules
1973 #
1974 #  target-dir => where to store outputfile
1975 #  build-dir  => directory in kernel source tree to use
1976
1977 ifeq ($(KBUILD_EXTMOD),)
1978         build-dir  = $(patsubst %/,%,$(dir $@))
1979         target-dir = $(dir $@)
1980 else
1981         zap-slash=$(filter-out .,$(patsubst %/,%,$(dir $@)))
1982         build-dir  = $(KBUILD_EXTMOD)$(if $(zap-slash),/$(zap-slash))
1983         target-dir = $(if $(KBUILD_EXTMOD),$(dir $<),$(dir $@))
1984 endif
1985
1986 %.s: %.c prepare scripts FORCE
1987         $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1988 %.i: %.c prepare scripts FORCE
1989         $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1990 %.o: %.c prepare scripts FORCE
1991         $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1992 %.lst: %.c prepare scripts FORCE
1993         $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1994 %.s: %.S prepare scripts FORCE
1995         $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1996 %.o: %.S prepare scripts FORCE
1997         $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1998 %.symtypes: %.c prepare scripts FORCE
1999         $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
2000
2001 # Modules
2002 /: prepare scripts FORCE
2003         $(cmd_crmodverdir)
2004         $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \
2005         $(build)=$(build-dir)
2006 %/: prepare scripts FORCE
2007         $(cmd_crmodverdir)
2008         $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \
2009         $(build)=$(build-dir)
2010 %.ko: prepare scripts FORCE
2011         $(cmd_crmodverdir)
2012         $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1)   \
2013         $(build)=$(build-dir) $(@:.ko=.o)
2014         $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost
2015
2016 quiet_cmd_genenv = GENENV $@
2017 cmd_genenv = $(OBJCOPY) --dump-section .rodata.default_environment=$@ env/common.o; \
2018         sed --in-place -e 's/\x00/\x0A/g' $@
2019
2020 u-boot-initial-env: u-boot.bin
2021         $(call if_changed,genenv)
2022
2023 # Consistency checks
2024 # ---------------------------------------------------------------------------
2025
2026 PHONY += coccicheck
2027
2028 coccicheck:
2029         $(Q)$(CONFIG_SHELL) $(srctree)/scripts/$@
2030
2031 # FIXME Should go into a make.lib or something
2032 # ===========================================================================
2033
2034 quiet_cmd_rmdirs = $(if $(wildcard $(rm-dirs)),CLEAN   $(wildcard $(rm-dirs)))
2035       cmd_rmdirs = rm -rf $(rm-dirs)
2036
2037 quiet_cmd_rmfiles = $(if $(wildcard $(rm-files)),CLEAN   $(wildcard $(rm-files)))
2038       cmd_rmfiles = rm -f $(rm-files)
2039
2040 # read all saved command lines
2041
2042 targets := $(wildcard $(sort $(targets)))
2043 cmd_files := $(wildcard .*.cmd $(foreach f,$(targets),$(dir $(f)).$(notdir $(f)).cmd))
2044
2045 ifneq ($(cmd_files),)
2046   $(cmd_files): ;       # Do not try to update included dependency files
2047   include $(cmd_files)
2048 endif
2049
2050 endif   # skip-makefile
2051
2052 PHONY += FORCE
2053 FORCE:
2054
2055 # Declare the contents of the .PHONY variable as phony.  We keep that
2056 # information in a variable so we can use it in if_changed and friends.
2057 .PHONY: $(PHONY)