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