Makefile

   1 # SPDX-License-Identifier: GPL-2.0+
   2
   3 VERSION = 2018
   4 PATCHLEVEL = 05
   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 $(CONFIG_TOOLS_DEBUG),-g)
 259 HOSTCXXFLAGS = -O2
 260
 261 ifeq ($(HOSTOS),cygwin)
 262 HOSTCFLAGS      += -ansi
 263 endif
 264
 265 # Mac OS X / Darwin's C preprocessor is Apple specific.  It
 266 # generates numerous errors and warnings.  We want to bypass it
 267 # and use GNU C's cpp.  To do this we pass the -traditional-cpp
 268 # option to the compiler.  Note that the -traditional-cpp flag
 269 # DOES NOT have the same semantics as GNU C's flag, all it does
 270 # is invoke the GNU preprocessor in stock ANSI/ISO C fashion.
 271 #
 272 # Apple's linker is similar, thanks to the new 2 stage linking
 273 # multiple symbol definitions are treated as errors, hence the
 274 # -multiply_defined suppress option to turn off this error.
 275 #
 276 ifeq ($(HOSTOS),darwin)
 277 # get major and minor product version (e.g. '10' and '6' for Snow Leopard)
 278 DARWIN_MAJOR_VERSION    = $(shell sw_vers -productVersion | cut -f 1 -d '.')
 279 DARWIN_MINOR_VERSION    = $(shell sw_vers -productVersion | cut -f 2 -d '.')
 280
 281 os_x_before     = $(shell if [ $(DARWIN_MAJOR_VERSION) -le $(1) -a \
 282         $(DARWIN_MINOR_VERSION) -le $(2) ] ; then echo "$(3)"; else echo "$(4)"; fi ;)
 283
 284 # Snow Leopards build environment has no longer restrictions as described above
 285 HOSTCC       = $(call os_x_before, 10, 5, "cc", "gcc")
 286 HOSTCFLAGS  += $(call os_x_before, 10, 4, "-traditional-cpp")
 287 HOSTLDFLAGS += $(call os_x_before, 10, 5, "-multiply_defined suppress")
 288
 289 # since Lion (10.7) ASLR is on by default, but we use linker generated lists
 290 # in some host tools which is a problem then ... so disable ASLR for these
 291 # tools
 292 HOSTLDFLAGS += $(call os_x_before, 10, 7, "", "-Xlinker -no_pie")
 293 endif
 294
 295 # Decide whether to build built-in, modular, or both.
 296 # Normally, just do built-in.
 297
 298 KBUILD_MODULES :=
 299 KBUILD_BUILTIN := 1
 300
 301 # If we have only "make modules", don't compile built-in objects.
 302 # When we're building modules with modversions, we need to consider
 303 # the built-in objects during the descend as well, in order to
 304 # make sure the checksums are up to date before we record them.
 305
 306 ifeq ($(MAKECMDGOALS),modules)
 307   KBUILD_BUILTIN := $(if $(CONFIG_MODVERSIONS),1)
 308 endif
 309
 310 # If we have "make <whatever> modules", compile modules
 311 # in addition to whatever we do anyway.
 312 # Just "make" or "make all" shall build modules as well
 313
 314 # U-Boot does not need modules
 315 #ifneq ($(filter all _all modules,$(MAKECMDGOALS)),)
 316 #  KBUILD_MODULES := 1
 317 #endif
 318
 319 #ifeq ($(MAKECMDGOALS),)
 320 #  KBUILD_MODULES := 1
 321 #endif
 322
 323 export KBUILD_MODULES KBUILD_BUILTIN
 324 export KBUILD_CHECKSRC KBUILD_SRC KBUILD_EXTMOD
 325
 326 # We need some generic definitions (do not try to remake the file).
 327 scripts/Kbuild.include: ;
 328 include scripts/Kbuild.include
 329
 330 # Make variables (CC, etc...)
 331
 332 AS              = $(CROSS_COMPILE)as
 333 # Always use GNU ld
 334 ifneq ($(shell $(CROSS_COMPILE)ld.bfd -v 2> /dev/null),)
 335 LD              = $(CROSS_COMPILE)ld.bfd
 336 else
 337 LD              = $(CROSS_COMPILE)ld
 338 endif
 339 CC              = $(CROSS_COMPILE)gcc
 340 CPP             = $(CC) -E
 341 AR              = $(CROSS_COMPILE)ar
 342 NM              = $(CROSS_COMPILE)nm
 343 LDR             = $(CROSS_COMPILE)ldr
 344 STRIP           = $(CROSS_COMPILE)strip
 345 OBJCOPY         = $(CROSS_COMPILE)objcopy
 346 OBJDUMP         = $(CROSS_COMPILE)objdump
 347 AWK             = awk
 348 PERL            = perl
 349 PYTHON          ?= python
 350 DTC             ?= $(objtree)/scripts/dtc/dtc
 351 CHECK           = sparse
 352
 353 CHECKFLAGS     := -D__linux__ -Dlinux -D__STDC__ -Dunix -D__unix__ \
 354                   -Wbitwise -Wno-return-void -D__CHECK_ENDIAN__ $(CF)
 355
 356 KBUILD_CPPFLAGS := -D__KERNEL__ -D__UBOOT__
 357
 358 KBUILD_CFLAGS   := -Wall -Wstrict-prototypes \
 359                    -Wno-format-security \
 360                    -fno-builtin -ffreestanding
 361 KBUILD_CFLAGS   += -fshort-wchar
 362 KBUILD_AFLAGS   := -D__ASSEMBLY__
 363
 364 # Read UBOOTRELEASE from include/config/uboot.release (if it exists)
 365 UBOOTRELEASE = $(shell cat include/config/uboot.release 2> /dev/null)
 366 UBOOTVERSION = $(VERSION)$(if $(PATCHLEVEL),.$(PATCHLEVEL)$(if $(SUBLEVEL),.$(SUBLEVEL)))$(EXTRAVERSION)
 367
 368 export VERSION PATCHLEVEL SUBLEVEL UBOOTRELEASE UBOOTVERSION
 369 export ARCH CPU BOARD VENDOR SOC CPUDIR BOARDDIR
 370 export CONFIG_SHELL HOSTCC HOSTCFLAGS HOSTLDFLAGS CROSS_COMPILE AS LD CC
 371 export CPP AR NM LDR STRIP OBJCOPY OBJDUMP
 372 export MAKE AWK PERL PYTHON
 373 export HOSTCXX HOSTCXXFLAGS CHECK CHECKFLAGS DTC DTC_FLAGS
 374
 375 export KBUILD_CPPFLAGS NOSTDINC_FLAGS UBOOTINCLUDE OBJCOPYFLAGS LDFLAGS
 376 export KBUILD_CFLAGS KBUILD_AFLAGS
 377
 378 # When compiling out-of-tree modules, put MODVERDIR in the module
 379 # tree rather than in the kernel tree. The kernel tree might
 380 # even be read-only.
 381 export MODVERDIR := $(if $(KBUILD_EXTMOD),$(firstword $(KBUILD_EXTMOD))/).tmp_versions
 382
 383 # Files to ignore in find ... statements
 384
 385 export RCS_FIND_IGNORE := \( -name SCCS -o -name BitKeeper -o -name .svn -o    \
 386                           -name CVS -o -name .pc -o -name .hg -o -name .git \) \
 387                           -prune -o
 388 export RCS_TAR_IGNORE := --exclude SCCS --exclude BitKeeper --exclude .svn \
 389                          --exclude CVS --exclude .pc --exclude .hg --exclude .git
 390
 391 # ===========================================================================
 392 # Rules shared between *config targets and build targets
 393
 394 # Basic helpers built in scripts/
 395 PHONY += scripts_basic
 396 scripts_basic:
 397         $(Q)$(MAKE) $(build)=scripts/basic
 398         $(Q)rm -f .tmp_quiet_recordmcount
 399
 400 # To avoid any implicit rule to kick in, define an empty command.
 401 scripts/basic/%: scripts_basic ;
 402
 403 PHONY += outputmakefile
 404 # outputmakefile generates a Makefile in the output directory, if using a
 405 # separate output directory. This allows convenient use of make in the
 406 # output directory.
 407 outputmakefile:
 408 ifneq ($(KBUILD_SRC),)
 409         $(Q)ln -fsn $(srctree) source
 410         $(Q)$(CONFIG_SHELL) $(srctree)/scripts/mkmakefile \
 411             $(srctree) $(objtree) $(VERSION) $(PATCHLEVEL)
 412 endif
 413
 414 # To make sure we do not include .config for any of the *config targets
 415 # catch them early, and hand them over to scripts/kconfig/Makefile
 416 # It is allowed to specify more targets when calling make, including
 417 # mixing *config targets and build targets.
 418 # For example 'make oldconfig all'.
 419 # Detect when mixed targets is specified, and make a second invocation
 420 # of make so .config is not included in this case either (for *config).
 421
 422 version_h := include/generated/version_autogenerated.h
 423 timestamp_h := include/generated/timestamp_autogenerated.h
 424 defaultenv_h := include/generated/defaultenv_autogenerated.h
 425
 426 no-dot-config-targets := clean clobber mrproper distclean \
 427                          help %docs check% coccicheck \
 428                          ubootversion backup tests
 429
 430 config-targets := 0
 431 mixed-targets  := 0
 432 dot-config     := 1
 433
 434 ifneq ($(filter $(no-dot-config-targets), $(MAKECMDGOALS)),)
 435         ifeq ($(filter-out $(no-dot-config-targets), $(MAKECMDGOALS)),)
 436                 dot-config := 0
 437         endif
 438 endif
 439
 440 ifeq ($(KBUILD_EXTMOD),)
 441         ifneq ($(filter config %config,$(MAKECMDGOALS)),)
 442                 config-targets := 1
 443                 ifneq ($(words $(MAKECMDGOALS)),1)
 444                         mixed-targets := 1
 445                 endif
 446         endif
 447 endif
 448
 449 ifeq ($(mixed-targets),1)
 450 # ===========================================================================
 451 # We're called with mixed targets (*config and build targets).
 452 # Handle them one by one.
 453
 454 PHONY += $(MAKECMDGOALS) __build_one_by_one
 455
 456 $(filter-out __build_one_by_one, $(MAKECMDGOALS)): __build_one_by_one
 457         @:
 458
 459 __build_one_by_one:
 460         $(Q)set -e; \
 461         for i in $(MAKECMDGOALS); do \
 462                 $(MAKE) -f $(srctree)/Makefile $$i; \
 463         done
 464
 465 else
 466 ifeq ($(config-targets),1)
 467 # ===========================================================================
 468 # *config targets only - make sure prerequisites are updated, and descend
 469 # in scripts/kconfig to make the *config target
 470
 471 KBUILD_DEFCONFIG := sandbox_defconfig
 472 export KBUILD_DEFCONFIG KBUILD_KCONFIG
 473
 474 config: scripts_basic outputmakefile FORCE
 475         $(Q)$(MAKE) $(build)=scripts/kconfig $@
 476
 477 %config: scripts_basic outputmakefile FORCE
 478         $(Q)$(MAKE) $(build)=scripts/kconfig $@
 479
 480 else
 481 # ===========================================================================
 482 # Build targets only - this includes vmlinux, arch specific targets, clean
 483 # targets and others. In general all targets except *config targets.
 484
 485 # Additional helpers built in scripts/
 486 # Carefully list dependencies so we do not try to build scripts twice
 487 # in parallel
 488 PHONY += scripts
 489 scripts: scripts_basic include/config/auto.conf
 490         $(Q)$(MAKE) $(build)=$(@)
 491
 492 ifeq ($(dot-config),1)
 493 # Read in config
 494 -include include/config/auto.conf
 495
 496 # Read in dependencies to all Kconfig* files, make sure to run
 497 # oldconfig if changes are detected.
 498 -include include/config/auto.conf.cmd
 499
 500 # To avoid any implicit rule to kick in, define an empty command
 501 $(KCONFIG_CONFIG) include/config/auto.conf.cmd: ;
 502
 503 # If .config is newer than include/config/auto.conf, someone tinkered
 504 # with it and forgot to run make oldconfig.
 505 # if auto.conf.cmd is missing then we are probably in a cleaned tree so
 506 # we execute the config step to be sure to catch updated Kconfig files
 507 include/config/%.conf: $(KCONFIG_CONFIG) include/config/auto.conf.cmd
 508         $(Q)$(MAKE) -f $(srctree)/Makefile silentoldconfig
 509         @# If the following part fails, include/config/auto.conf should be
 510         @# deleted so "make silentoldconfig" will be re-run on the next build.
 511         $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.autoconf || \
 512                 { rm -f include/config/auto.conf; false; }
 513         @# include/config.h has been updated after "make silentoldconfig".
 514         @# We need to touch include/config/auto.conf so it gets newer
 515         @# than include/config.h.
 516         @# Otherwise, 'make silentoldconfig' would be invoked twice.
 517         $(Q)touch include/config/auto.conf
 518
 519 u-boot.cfg spl/u-boot.cfg tpl/u-boot.cfg: include/config.h FORCE
 520         $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.autoconf $(@)
 521
 522 -include include/autoconf.mk
 523 -include include/autoconf.mk.dep
 524
 525 # We want to include arch/$(ARCH)/config.mk only when include/config/auto.conf
 526 # is up-to-date. When we switch to a different board configuration, old CONFIG
 527 # macros are still remaining in include/config/auto.conf. Without the following
 528 # gimmick, wrong config.mk would be included leading nasty warnings/errors.
 529 ifneq ($(wildcard $(KCONFIG_CONFIG)),)
 530 ifneq ($(wildcard include/config/auto.conf),)
 531 autoconf_is_old := $(shell find . -path ./$(KCONFIG_CONFIG) -newer \
 532                                                 include/config/auto.conf)
 533 ifeq ($(autoconf_is_old),)
 534 include config.mk
 535 include arch/$(ARCH)/Makefile
 536 endif
 537 endif
 538 endif
 539
 540 # These are set by the arch-specific config.mk. Make sure they are exported
 541 # so they can be used when building an EFI application.
 542 export EFI_LDS          # Filename of EFI link script in arch/$(ARCH)/lib
 543 export EFI_CRT0         # Filename of EFI CRT0 in arch/$(ARCH)/lib
 544 export EFI_RELOC        # Filename of EFU relocation code in arch/$(ARCH)/lib
 545 export CFLAGS_EFI       # Compiler flags to add when building EFI app
 546 export CFLAGS_NON_EFI   # Compiler flags to remove when building EFI app
 547 export EFI_TARGET       # binutils target if EFI is natively supported
 548
 549 # If board code explicitly specified LDSCRIPT or CONFIG_SYS_LDSCRIPT, use
 550 # that (or fail if absent).  Otherwise, search for a linker script in a
 551 # standard location.
 552
 553 ifndef LDSCRIPT
 554         #LDSCRIPT := $(srctree)/board/$(BOARDDIR)/u-boot.lds.debug
 555         ifdef CONFIG_SYS_LDSCRIPT
 556                 # need to strip off double quotes
 557                 LDSCRIPT := $(srctree)/$(CONFIG_SYS_LDSCRIPT:"%"=%)
 558         endif
 559 endif
 560
 561 # If there is no specified link script, we look in a number of places for it
 562 ifndef LDSCRIPT
 563         ifeq ($(wildcard $(LDSCRIPT)),)
 564                 LDSCRIPT := $(srctree)/board/$(BOARDDIR)/u-boot.lds
 565         endif
 566         ifeq ($(wildcard $(LDSCRIPT)),)
 567                 LDSCRIPT := $(srctree)/$(CPUDIR)/u-boot.lds
 568         endif
 569         ifeq ($(wildcard $(LDSCRIPT)),)
 570                 LDSCRIPT := $(srctree)/arch/$(ARCH)/cpu/u-boot.lds
 571         endif
 572 endif
 573
 574 else
 575 # Dummy target needed, because used as prerequisite
 576 include/config/auto.conf: ;
 577 endif # $(dot-config)
 578
 579 #
 580 # Xtensa linker script cannot be preprocessed with -ansi because of
 581 # preprocessor operations on strings that don't make C identifiers.
 582 #
 583 ifeq ($(CONFIG_XTENSA),)
 584 LDPPFLAGS       += -ansi
 585 endif
 586
 587 ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE
 588 KBUILD_CFLAGS   += -Os
 589 else
 590 KBUILD_CFLAGS   += -O2
 591 endif
 592
 593 KBUILD_CFLAGS += $(call cc-option,-fno-stack-protector)
 594 KBUILD_CFLAGS += $(call cc-option,-fno-delete-null-pointer-checks)
 595
 596 # change __FILE__ to the relative path from the srctree
 597 KBUILD_CFLAGS   += $(call cc-option,-fmacro-prefix-map=$(srctree)/=)
 598
 599 KBUILD_CFLAGS   += -g
 600 # $(KBUILD_AFLAGS) sets -g, which causes gcc to pass a suitable -g<format>
 601 # option to the assembler.
 602 KBUILD_AFLAGS   += -g
 603
 604 # Report stack usage if supported
 605 # ARC tools based on GCC 7.1 has an issue with stack usage
 606 # with naked functions, see commit message for more details
 607 ifndef CONFIG_ARC
 608 ifeq ($(shell $(CONFIG_SHELL) $(srctree)/scripts/gcc-stack-usage.sh $(CC)),y)
 609         KBUILD_CFLAGS += -fstack-usage
 610 endif
 611 endif
 612
 613 KBUILD_CFLAGS += $(call cc-option,-Wno-format-nonliteral)
 614 ifeq ($(cc-name),clang)
 615 KBUILD_CPPFLAGS += $(call cc-option,-Qunused-arguments,)
 616 KBUILD_CFLAGS += $(call cc-disable-warning, format-invalid-specifier)
 617 KBUILD_CFLAGS += $(call cc-disable-warning, gnu)
 618 KBUILD_CFLAGS += $(call cc-disable-warning, address-of-packed-member)
 619 KBUILD_CFLAGS += $(call cc-option, -fcatch-undefined-behavior)
 620 endif
 621
 622 # turn jbsr into jsr for m68k
 623 ifeq ($(ARCH),m68k)
 624 ifeq ($(findstring 3.4,$(shell $(CC) --version)),3.4)
 625 KBUILD_AFLAGS += -Wa,-gstabs,-S
 626 endif
 627 endif
 628
 629 # Prohibit date/time macros, which would make the build non-deterministic
 630 KBUILD_CFLAGS   += $(call cc-option,-Werror=date-time)
 631
 632 include scripts/Makefile.extrawarn
 633
 634 # Add user supplied CPPFLAGS, AFLAGS and CFLAGS as the last assignments
 635 KBUILD_CPPFLAGS += $(KCPPFLAGS)
 636 KBUILD_AFLAGS += $(KAFLAGS)
 637 KBUILD_CFLAGS += $(KCFLAGS)
 638
 639 # Use UBOOTINCLUDE when you must reference the include/ directory.
 640 # Needed to be compatible with the O= option
 641 UBOOTINCLUDE    := \
 642                 -Iinclude \
 643                 $(if $(KBUILD_SRC), -I$(srctree)/include) \
 644                 $(if $(CONFIG_$(SPL_)SYS_THUMB_BUILD), \
 645                         $(if $(CONFIG_HAS_THUMB2),, \
 646                                 -I$(srctree)/arch/$(ARCH)/thumb1/include),) \
 647                 -I$(srctree)/arch/$(ARCH)/include \
 648                 -include $(srctree)/include/linux/kconfig.h
 649
 650 NOSTDINC_FLAGS += -nostdinc -isystem $(shell $(CC) -print-file-name=include)
 651 CHECKFLAGS     += $(NOSTDINC_FLAGS)
 652
 653 # FIX ME
 654 cpp_flags := $(KBUILD_CPPFLAGS) $(PLATFORM_CPPFLAGS) $(UBOOTINCLUDE) \
 655                                                         $(NOSTDINC_FLAGS)
 656 c_flags := $(KBUILD_CFLAGS) $(cpp_flags)
 657
 658 #########################################################################
 659 # U-Boot objects....order is important (i.e. start must be first)
 660
 661 HAVE_VENDOR_COMMON_LIB = $(if $(wildcard $(srctree)/board/$(VENDOR)/common/Makefile),y,n)
 662
 663 libs-y += lib/
 664 libs-$(HAVE_VENDOR_COMMON_LIB) += board/$(VENDOR)/common/
 665 libs-$(CONFIG_OF_EMBED) += dts/
 666 libs-y += fs/
 667 libs-y += net/
 668 libs-y += disk/
 669 libs-y += drivers/
 670 libs-y += drivers/dma/
 671 libs-y += drivers/gpio/
 672 libs-y += drivers/i2c/
 673 libs-y += drivers/mtd/
 674 libs-$(CONFIG_CMD_NAND) += drivers/mtd/nand/
 675 libs-y += drivers/mtd/onenand/
 676 libs-$(CONFIG_CMD_UBI) += drivers/mtd/ubi/
 677 libs-y += drivers/mtd/spi/
 678 libs-y += drivers/net/
 679 libs-y += drivers/net/phy/
 680 libs-y += drivers/pci/
 681 libs-y += drivers/power/ \
 682         drivers/power/domain/ \
 683         drivers/power/fuel_gauge/ \
 684         drivers/power/mfd/ \
 685         drivers/power/pmic/ \
 686         drivers/power/battery/ \
 687         drivers/power/regulator/
 688 libs-y += drivers/spi/
 689 libs-$(CONFIG_FMAN_ENET) += drivers/net/fm/
 690 libs-$(CONFIG_SYS_FSL_DDR) += drivers/ddr/fsl/
 691 libs-$(CONFIG_SYS_FSL_MMDC) += drivers/ddr/fsl/
 692 libs-$(CONFIG_ALTERA_SDRAM) += drivers/ddr/altera/
 693 libs-y += drivers/serial/
 694 libs-y += drivers/usb/dwc3/
 695 libs-y += drivers/usb/common/
 696 libs-y += drivers/usb/emul/
 697 libs-y += drivers/usb/eth/
 698 libs-y += drivers/usb/gadget/
 699 libs-y += drivers/usb/gadget/udc/
 700 libs-y += drivers/usb/host/
 701 libs-y += drivers/usb/musb/
 702 libs-y += drivers/usb/musb-new/
 703 libs-y += drivers/usb/phy/
 704 libs-y += drivers/usb/ulpi/
 705 libs-y += cmd/
 706 libs-y += common/
 707 libs-y += env/
 708 libs-$(CONFIG_API) += api/
 709 libs-$(CONFIG_HAS_POST) += post/
 710 libs-y += test/
 711 libs-y += test/dm/
 712 libs-$(CONFIG_UT_ENV) += test/env/
 713 libs-$(CONFIG_UT_OVERLAY) += test/overlay/
 714
 715 libs-y += $(if $(BOARDDIR),board/$(BOARDDIR)/)
 716
 717 libs-y := $(sort $(libs-y))
 718
 719 u-boot-dirs     := $(patsubst %/,%,$(filter %/, $(libs-y))) tools examples
 720
 721 u-boot-alldirs  := $(sort $(u-boot-dirs) $(patsubst %/,%,$(filter %/, $(libs-))))
 722
 723 libs-y          := $(patsubst %/, %/built-in.o, $(libs-y))
 724
 725 u-boot-init := $(head-y)
 726 u-boot-main := $(libs-y)
 727
 728
 729 # Add GCC lib
 730 ifeq ($(CONFIG_USE_PRIVATE_LIBGCC),y)
 731 PLATFORM_LIBGCC = arch/$(ARCH)/lib/lib.a
 732 else
 733 PLATFORM_LIBGCC := -L $(shell dirname `$(CC) $(c_flags) -print-libgcc-file-name`) -lgcc
 734 endif
 735 PLATFORM_LIBS += $(PLATFORM_LIBGCC)
 736
 737 ifdef CONFIG_CC_COVERAGE
 738 KBUILD_CFLAGS += --coverage
 739 PLATFORM_LIBGCC += -lgcov
 740 endif
 741
 742 export PLATFORM_LIBS
 743 export PLATFORM_LIBGCC
 744
 745 # Special flags for CPP when processing the linker script.
 746 # Pass the version down so we can handle backwards compatibility
 747 # on the fly.
 748 LDPPFLAGS += \
 749         -include $(srctree)/include/u-boot/u-boot.lds.h \
 750         -DCPUDIR=$(CPUDIR) \
 751         $(shell $(LD) --version | \
 752           sed -ne 's/GNU ld version \([0-9][0-9]*\)\.\([0-9][0-9]*\).*/-DLD_MAJOR=\1 -DLD_MINOR=\2/p')
 753
 754 #########################################################################
 755 #########################################################################
 756
 757 ifneq ($(CONFIG_BOARD_SIZE_LIMIT),)
 758 BOARD_SIZE_CHECK = \
 759         @actual=`wc -c $@ | awk '{print $$1}'`; \
 760         limit=`printf "%d" $(CONFIG_BOARD_SIZE_LIMIT)`; \
 761         if test $$actual -gt $$limit; then \
 762                 echo "$@ exceeds file size limit:" >&2 ; \
 763                 echo "  limit:  $$limit bytes" >&2 ; \
 764                 echo "  actual: $$actual bytes" >&2 ; \
 765                 echo "  excess: $$((actual - limit)) bytes" >&2; \
 766                 exit 1; \
 767         fi
 768 else
 769 BOARD_SIZE_CHECK =
 770 endif
 771
 772 # Statically apply RELA-style relocations (currently arm64 only)
 773 # This is useful for arm64 where static relocation needs to be performed on
 774 # the raw binary, but certain simulators only accept an ELF file (but don't
 775 # do the relocation).
 776 ifneq ($(CONFIG_STATIC_RELA),)
 777 # $(1) is u-boot ELF, $(2) is u-boot bin, $(3) is text base
 778 DO_STATIC_RELA = \
 779         start=$$($(NM) $(1) | grep __rel_dyn_start | cut -f 1 -d ' '); \
 780         end=$$($(NM) $(1) | grep __rel_dyn_end | cut -f 1 -d ' '); \
 781         tools/relocate-rela $(2) $(3) $$start $$end
 782 else
 783 DO_STATIC_RELA =
 784 endif
 785
 786 # Always append ALL so that arch config.mk's can add custom ones
 787 ALL-y += u-boot.srec u-boot.bin u-boot.sym System.map binary_size_check
 788
 789 ALL-$(CONFIG_ONENAND_U_BOOT) += u-boot-onenand.bin
 790 ifeq ($(CONFIG_SPL_FSL_PBL),y)
 791 ALL-$(CONFIG_RAMBOOT_PBL) += u-boot-with-spl-pbl.bin
 792 else
 793 ifneq ($(CONFIG_SECURE_BOOT), y)
 794 # For Secure Boot The Image needs to be signed and Header must also
 795 # be included. So The image has to be built explicitly
 796 ALL-$(CONFIG_RAMBOOT_PBL) += u-boot.pbl
 797 endif
 798 endif
 799 ALL-$(CONFIG_SPL) += spl/u-boot-spl.bin
 800 ifeq ($(CONFIG_MX6)$(CONFIG_SECURE_BOOT), yy)
 801 ALL-$(CONFIG_SPL_FRAMEWORK) += u-boot-ivt.img
 802 else
 803 ifeq ($(CONFIG_MX7)$(CONFIG_SECURE_BOOT), yy)
 804 ALL-$(CONFIG_SPL_FRAMEWORK) += u-boot-ivt.img
 805 else
 806 ALL-$(CONFIG_SPL_FRAMEWORK) += u-boot.img
 807 endif
 808 endif
 809 ALL-$(CONFIG_TPL) += tpl/u-boot-tpl.bin
 810 ALL-$(CONFIG_OF_SEPARATE) += u-boot.dtb
 811 ifeq ($(CONFIG_SPL_FRAMEWORK),y)
 812 ALL-$(CONFIG_OF_SEPARATE) += u-boot-dtb.img
 813 endif
 814 ALL-$(CONFIG_OF_HOSTFILE) += u-boot.dtb
 815 ifneq ($(CONFIG_SPL_TARGET),)
 816 ALL-$(CONFIG_SPL) += $(CONFIG_SPL_TARGET:"%"=%)
 817 endif
 818 ALL-$(CONFIG_REMAKE_ELF) += u-boot.elf
 819 ALL-$(CONFIG_EFI_APP) += u-boot-app.efi
 820 ALL-$(CONFIG_EFI_STUB) += u-boot-payload.efi
 821
 822 ifneq ($(BUILD_ROM)$(CONFIG_BUILD_ROM),)
 823 ALL-$(CONFIG_X86_RESET_VECTOR) += u-boot.rom
 824 endif
 825
 826 # Build a combined spl + u-boot image for sunxi
 827 ifeq ($(CONFIG_ARCH_SUNXI)$(CONFIG_SPL),yy)
 828 ALL-y += u-boot-sunxi-with-spl.bin
 829 endif
 830
 831 # enable combined SPL/u-boot/dtb rules for tegra
 832 ifeq ($(CONFIG_TEGRA)$(CONFIG_SPL),yy)
 833 ALL-y += u-boot-tegra.bin u-boot-nodtb-tegra.bin
 834 ALL-$(CONFIG_OF_SEPARATE) += u-boot-dtb-tegra.bin
 835 endif
 836
 837 # Add optional build target if defined in board/cpu/soc headers
 838 ifneq ($(CONFIG_BUILD_TARGET),)
 839 ALL-y += $(CONFIG_BUILD_TARGET:"%"=%)
 840 endif
 841
 842 ifneq ($(CONFIG_SYS_INIT_SP_BSS_OFFSET),)
 843 ALL-y += init_sp_bss_offset_check
 844 endif
 845
 846 LDFLAGS_u-boot += $(LDFLAGS_FINAL)
 847
 848 # Avoid 'Not enough room for program headers' error on binutils 2.28 onwards.
 849 LDFLAGS_u-boot += $(call ld-option, --no-dynamic-linker)
 850
 851 ifeq ($(CONFIG_ARC)$(CONFIG_NIOS2)$(CONFIG_X86)$(CONFIG_XTENSA),)
 852 LDFLAGS_u-boot += -Ttext $(CONFIG_SYS_TEXT_BASE)
 853 endif
 854
 855 # Normally we fill empty space with 0xff
 856 quiet_cmd_objcopy = OBJCOPY $@
 857 cmd_objcopy = $(OBJCOPY) --gap-fill=0xff $(OBJCOPYFLAGS) \
 858         $(OBJCOPYFLAGS_$(@F)) $< $@
 859
 860 # Provide a version which does not do this, for use by EFI
 861 quiet_cmd_zobjcopy = OBJCOPY $@
 862 cmd_zobjcopy = $(OBJCOPY) $(OBJCOPYFLAGS) $(OBJCOPYFLAGS_$(@F)) $< $@
 863
 864 quiet_cmd_efipayload = OBJCOPY $@
 865 cmd_efipayload = $(OBJCOPY) -I binary -O $(EFIPAYLOAD_BFDTARGET) -B $(EFIPAYLOAD_BFDARCH) $< $@
 866
 867 MKIMAGEOUTPUT ?= /dev/null
 868
 869 quiet_cmd_mkimage = MKIMAGE $@
 870 cmd_mkimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -d $< $@ \
 871         >$(MKIMAGEOUTPUT) $(if $(KBUILD_VERBOSE:0=), && cat $(MKIMAGEOUTPUT))
 872
 873 quiet_cmd_mkfitimage = MKIMAGE $@
 874 cmd_mkfitimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -f $(U_BOOT_ITS) -E $@ \
 875         >$(MKIMAGEOUTPUT) $(if $(KBUILD_VERBOSE:0=), && cat $(MKIMAGEOUTPUT))
 876
 877 quiet_cmd_cat = CAT     $@
 878 cmd_cat = cat $(filter-out $(PHONY), $^) > $@
 879
 880 append = cat $(filter-out $< $(PHONY), $^) >> $@
 881
 882 quiet_cmd_pad_cat = CAT     $@
 883 cmd_pad_cat = $(cmd_objcopy) && $(append) || rm -f $@
 884
 885 cfg: u-boot.cfg
 886
 887 quiet_cmd_cfgcheck = CFGCHK  $2
 888 cmd_cfgcheck = $(srctree)/scripts/check-config.sh $2 \
 889                 $(srctree)/scripts/config_whitelist.txt $(srctree)
 890
 891 all:            $(ALL-y) cfg
 892 ifeq ($(CONFIG_DM_I2C_COMPAT)$(CONFIG_SANDBOX),y)
 893         @echo "===================== WARNING ======================"
 894         @echo "This board uses CONFIG_DM_I2C_COMPAT. Please remove"
 895         @echo "(possibly in a subsequent patch in your series)"
 896         @echo "before sending patches to the mailing list."
 897         @echo "===================================================="
 898 endif
 899         @# Check that this build does not use CONFIG options that we do not
 900         @# know about unless they are in Kconfig. All the existing CONFIG
 901         @# options are whitelisted, so new ones should not be added.
 902         $(call cmd,cfgcheck,u-boot.cfg)
 903
 904 PHONY += dtbs
 905 dtbs: dts/dt.dtb
 906         @:
 907 dts/dt.dtb: u-boot
 908         $(Q)$(MAKE) $(build)=dts dtbs
 909
 910 quiet_cmd_copy = COPY    $@
 911       cmd_copy = cp $< $@
 912
 913 ifeq ($(CONFIG_MULTI_DTB_FIT),y)
 914
 915 fit-dtb.blob: dts/dt.dtb FORCE
 916         $(call if_changed,mkimage)
 917
 918 MKIMAGEFLAGS_fit-dtb.blob = -f auto -A $(ARCH) -T firmware -C none -O u-boot \
 919         -a 0 -e 0 -E \
 920         $(patsubst %,-b arch/$(ARCH)/dts/%.dtb,$(subst ",,$(CONFIG_OF_LIST))) -d /dev/null
 921
 922 u-boot-fit-dtb.bin: u-boot-nodtb.bin fit-dtb.blob
 923         $(call if_changed,cat)
 924
 925 u-boot.bin: u-boot-fit-dtb.bin FORCE
 926         $(call if_changed,copy)
 927 else ifeq ($(CONFIG_OF_SEPARATE),y)
 928 u-boot-dtb.bin: u-boot-nodtb.bin dts/dt.dtb FORCE
 929         $(call if_changed,cat)
 930
 931 u-boot.bin: u-boot-dtb.bin FORCE
 932         $(call if_changed,copy)
 933 else
 934 u-boot.bin: u-boot-nodtb.bin FORCE
 935         $(call if_changed,copy)
 936 endif
 937
 938 %.imx: %.bin
 939         $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@
 940
 941 %.vyb: %.imx
 942         $(Q)$(MAKE) $(build)=arch/arm/cpu/armv7/vf610 $@
 943
 944 quiet_cmd_copy = COPY    $@
 945       cmd_copy = cp $< $@
 946
 947 u-boot.dtb: dts/dt.dtb
 948         $(call cmd,copy)
 949
 950 OBJCOPYFLAGS_u-boot.hex := -O ihex
 951
 952 OBJCOPYFLAGS_u-boot.srec := -O srec
 953
 954 u-boot.hex u-boot.srec: u-boot FORCE
 955         $(call if_changed,objcopy)
 956
 957 OBJCOPYFLAGS_u-boot-elf.srec := $(OBJCOPYFLAGS_u-boot.srec)
 958
 959 u-boot-elf.srec: u-boot.elf FORCE
 960         $(call if_changed,objcopy)
 961
 962 OBJCOPYFLAGS_u-boot-spl.srec = $(OBJCOPYFLAGS_u-boot.srec)
 963
 964 spl/u-boot-spl.srec: spl/u-boot-spl FORCE
 965         $(call if_changed,objcopy)
 966
 967 OBJCOPYFLAGS_u-boot-nodtb.bin := -O binary \
 968                 $(if $(CONFIG_X86_16BIT_INIT),-R .start16 -R .resetvec)
 969
 970 binary_size_check: u-boot-nodtb.bin FORCE
 971         @file_size=$(shell wc -c u-boot-nodtb.bin | awk '{print $$1}') ; \
 972         map_size=$(shell cat u-boot.map | \
 973                 awk '/_image_copy_start/ {start = $$1} /_image_binary_end/ {end = $$1} END {if (start != "" && end != "") print "ibase=16; " toupper(end) " - " toupper(start)}' \
 974                 | sed 's/0X//g' \
 975                 | bc); \
 976         if [ "" != "$$map_size" ]; then \
 977                 if test $$map_size -ne $$file_size; then \
 978                         echo "u-boot.map shows a binary size of $$map_size" >&2 ; \
 979                         echo "  but u-boot-nodtb.bin shows $$file_size" >&2 ; \
 980                         exit 1; \
 981                 fi \
 982         fi
 983
 984 ifneq ($(CONFIG_SYS_INIT_SP_BSS_OFFSET),)
 985 ifneq ($(CONFIG_SYS_MALLOC_F_LEN),)
 986 subtract_sys_malloc_f_len = space=$$(($${space} - $(CONFIG_SYS_MALLOC_F_LEN)))
 987 else
 988 subtract_sys_malloc_f_len = true
 989 endif
 990 # The 1/4 margin below is somewhat arbitrary. The likely initial SP usage is
 991 # so low that the DTB could probably use 90%+ of the available space, for
 992 # current values of CONFIG_SYS_INIT_SP_BSS_OFFSET at least. However, let's be
 993 # safe for now and tweak this later if space becomes tight.
 994 # A rejected alternative would be to check that some absolute minimum stack
 995 # space was available. However, since CONFIG_SYS_INIT_SP_BSS_OFFSET is
 996 # deliberately build-specific, to take account of build-to-build stack usage
 997 # differences due to different feature sets, there is no common absolute value
 998 # to check against.
 999 init_sp_bss_offset_check: u-boot.dtb FORCE
1000         @dtb_size=$(shell wc -c u-boot.dtb | awk '{print $$1}') ; \
1001         space=$(CONFIG_SYS_INIT_SP_BSS_OFFSET) ; \
1002         $(subtract_sys_malloc_f_len) ; \
1003         quarter_space=$$(($${space} / 4)) ; \
1004         if [ $${dtb_size} -gt $${quarter_space} ]; then \
1005                 echo "u-boot.dtb is larger than 1 quarter of " >&2 ; \
1006                 echo "(CONFIG_SYS_INIT_SP_BSS_OFFSET - CONFIG_SYS_MALLOC_F_LEN)" >&2 ; \
1007                 exit 1 ; \
1008         fi
1009 endif
1010
1011 u-boot-nodtb.bin: u-boot FORCE
1012         $(call if_changed,objcopy)
1013         $(call DO_STATIC_RELA,$<,$@,$(CONFIG_SYS_TEXT_BASE))
1014         $(BOARD_SIZE_CHECK)
1015
1016 u-boot.ldr:     u-boot
1017                 $(CREATE_LDR_ENV)
1018                 $(LDR) -T $(CONFIG_CPU) -c $@ $< $(LDR_FLAGS)
1019                 $(BOARD_SIZE_CHECK)
1020
1021 # binman
1022 # ---------------------------------------------------------------------------
1023 quiet_cmd_binman = BINMAN  $@
1024 cmd_binman = $(srctree)/tools/binman/binman -d u-boot.dtb -O . \
1025                 -I . -I $(srctree)/board/$(BOARDDIR) $<
1026
1027 OBJCOPYFLAGS_u-boot.ldr.hex := -I binary -O ihex
1028
1029 OBJCOPYFLAGS_u-boot.ldr.srec := -I binary -O srec
1030
1031 u-boot.ldr.hex u-boot.ldr.srec: u-boot.ldr FORCE
1032         $(call if_changed,objcopy)
1033
1034 #
1035 # U-Boot entry point, needed for booting of full-blown U-Boot
1036 # from the SPL U-Boot version.
1037 #
1038 ifndef CONFIG_SYS_UBOOT_START
1039 CONFIG_SYS_UBOOT_START := 0
1040 endif
1041
1042 # Create a file containing the configuration options the image was built with
1043 quiet_cmd_cpp_cfg = CFG     $@
1044 cmd_cpp_cfg = $(CPP) -Wp,-MD,$(depfile) $(cpp_flags) $(LDPPFLAGS) -ansi \
1045         -DDO_DEPS_ONLY -D__ASSEMBLY__ -x assembler-with-cpp -P -dM -E -o $@ $<
1046
1047 # Boards with more complex image requirments can provide an .its source file
1048 # or a generator script
1049 ifneq ($(CONFIG_SPL_FIT_SOURCE),"")
1050 U_BOOT_ITS = $(subst ",,$(CONFIG_SPL_FIT_SOURCE))
1051 else
1052 ifneq ($(CONFIG_SPL_FIT_GENERATOR),"")
1053 U_BOOT_ITS := u-boot.its
1054 $(U_BOOT_ITS): FORCE
1055         $(srctree)/$(CONFIG_SPL_FIT_GENERATOR) \
1056         $(patsubst %,arch/$(ARCH)/dts/%.dtb,$(subst ",,$(CONFIG_OF_LIST))) > $@
1057 endif
1058 endif
1059
1060 ifdef CONFIG_SPL_LOAD_FIT
1061 MKIMAGEFLAGS_u-boot.img = -f auto -A $(ARCH) -T firmware -C none -O u-boot \
1062         -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \
1063         -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board" -E \
1064         $(patsubst %,-b arch/$(ARCH)/dts/%.dtb,$(subst ",,$(CONFIG_OF_LIST)))
1065 else
1066 MKIMAGEFLAGS_u-boot.img = -A $(ARCH) -T firmware -C none -O u-boot \
1067         -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \
1068         -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board"
1069 MKIMAGEFLAGS_u-boot-ivt.img = -A $(ARCH) -T firmware_ivt -C none -O u-boot \
1070         -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \
1071         -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board"
1072 u-boot-ivt.img: MKIMAGEOUTPUT = u-boot-ivt.img.log
1073 CLEAN_FILES += u-boot-ivt.img.log u-boot-dtb.imx.log SPL.log u-boot.imx.log
1074 endif
1075
1076 MKIMAGEFLAGS_u-boot-dtb.img = $(MKIMAGEFLAGS_u-boot.img)
1077
1078 MKIMAGEFLAGS_u-boot.kwb = -n $(srctree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%) \
1079         -T kwbimage -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE)
1080
1081 MKIMAGEFLAGS_u-boot-spl.kwb = -n $(srctree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%) \
1082         -T kwbimage -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE) \
1083         $(if $(KEYDIR),-k $(KEYDIR))
1084
1085 MKIMAGEFLAGS_u-boot.pbl = -n $(srctree)/$(CONFIG_SYS_FSL_PBL_RCW:"%"=%) \
1086                 -R $(srctree)/$(CONFIG_SYS_FSL_PBL_PBI:"%"=%) -T pblimage
1087
1088 u-boot-dtb.img u-boot.img u-boot.kwb u-boot.pbl u-boot-ivt.img: \
1089                 $(if $(CONFIG_SPL_LOAD_FIT),u-boot-nodtb.bin dts/dt.dtb,u-boot.bin) FORCE
1090         $(call if_changed,mkimage)
1091
1092 u-boot.itb: u-boot-nodtb.bin dts/dt.dtb $(U_BOOT_ITS) FORCE
1093         $(call if_changed,mkfitimage)
1094         $(BOARD_SIZE_CHECK)
1095
1096 u-boot-spl.kwb: u-boot.img spl/u-boot-spl.bin FORCE
1097         $(call if_changed,mkimage)
1098
1099 u-boot.sha1:    u-boot.bin
1100                 tools/ubsha1 u-boot.bin
1101
1102 u-boot.dis:     u-boot
1103                 $(OBJDUMP) -d $< > $@
1104
1105 ifdef CONFIG_TPL
1106 SPL_PAYLOAD := tpl/u-boot-with-tpl.bin
1107 else
1108 SPL_PAYLOAD := u-boot.bin
1109 endif
1110
1111 OBJCOPYFLAGS_u-boot-with-spl.bin = -I binary -O binary \
1112                                    --pad-to=$(CONFIG_SPL_PAD_TO)
1113 u-boot-with-spl.bin: spl/u-boot-spl.bin $(SPL_PAYLOAD) FORCE
1114         $(call if_changed,pad_cat)
1115
1116 MKIMAGEFLAGS_lpc32xx-spl.img = -T lpc32xximage -a $(CONFIG_SPL_TEXT_BASE)
1117
1118 lpc32xx-spl.img: spl/u-boot-spl.bin FORCE
1119         $(call if_changed,mkimage)
1120
1121 OBJCOPYFLAGS_lpc32xx-boot-0.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO)
1122
1123 lpc32xx-boot-0.bin: lpc32xx-spl.img FORCE
1124         $(call if_changed,objcopy)
1125
1126 OBJCOPYFLAGS_lpc32xx-boot-1.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO)
1127
1128 lpc32xx-boot-1.bin: lpc32xx-spl.img FORCE
1129         $(call if_changed,objcopy)
1130
1131 lpc32xx-full.bin: lpc32xx-boot-0.bin lpc32xx-boot-1.bin u-boot.img FORCE
1132         $(call if_changed,cat)
1133
1134 CLEAN_FILES += lpc32xx-*
1135
1136 OBJCOPYFLAGS_u-boot-with-tpl.bin = -I binary -O binary \
1137                                    --pad-to=$(CONFIG_TPL_PAD_TO)
1138 tpl/u-boot-with-tpl.bin: tpl/u-boot-tpl.bin u-boot.bin FORCE
1139         $(call if_changed,pad_cat)
1140
1141 SPL: spl/u-boot-spl.bin FORCE
1142         $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@
1143
1144 u-boot-with-spl.imx u-boot-with-nand-spl.imx: SPL u-boot.bin FORCE
1145         $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@
1146
1147 MKIMAGEFLAGS_u-boot.ubl = -n $(UBL_CONFIG) -T ublimage -e $(CONFIG_SYS_TEXT_BASE)
1148
1149 u-boot.ubl: u-boot-with-spl.bin FORCE
1150         $(call if_changed,mkimage)
1151
1152 MKIMAGEFLAGS_u-boot-spl.ais = -s -n $(if $(CONFIG_AIS_CONFIG_FILE), \
1153         $(srctree)/$(CONFIG_AIS_CONFIG_FILE:"%"=%),"/dev/null") \
1154         -T aisimage -e $(CONFIG_SPL_TEXT_BASE)
1155 spl/u-boot-spl.ais: spl/u-boot-spl.bin FORCE
1156         $(call if_changed,mkimage)
1157
1158 OBJCOPYFLAGS_u-boot.ais = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO)
1159 u-boot.ais: spl/u-boot-spl.ais u-boot.img FORCE
1160         $(call if_changed,pad_cat)
1161
1162 u-boot-signed.sb: u-boot.bin spl/u-boot-spl.bin
1163         $(Q)$(MAKE) $(build)=arch/arm/cpu/arm926ejs/mxs u-boot-signed.sb
1164 u-boot.sb: u-boot.bin spl/u-boot-spl.bin
1165         $(Q)$(MAKE) $(build)=arch/arm/cpu/arm926ejs/mxs u-boot.sb
1166
1167 # On x600 (SPEAr600) U-Boot is appended to U-Boot SPL.
1168 # Both images are created using mkimage (crc etc), so that the ROM
1169 # bootloader can check its integrity. Padding needs to be done to the
1170 # SPL image (with mkimage header) and not the binary. Otherwise the resulting image
1171 # which is loaded/copied by the ROM bootloader to SRAM doesn't fit.
1172 # The resulting image containing both U-Boot images is called u-boot.spr
1173 MKIMAGEFLAGS_u-boot-spl.img = -A $(ARCH) -T firmware -C none \
1174         -a $(CONFIG_SPL_TEXT_BASE) -e $(CONFIG_SPL_TEXT_BASE) -n XLOADER
1175 spl/u-boot-spl.img: spl/u-boot-spl.bin FORCE
1176         $(call if_changed,mkimage)
1177
1178 OBJCOPYFLAGS_u-boot.spr = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) \
1179                           --gap-fill=0xff
1180 u-boot.spr: spl/u-boot-spl.img u-boot.img FORCE
1181         $(call if_changed,pad_cat)
1182
1183 ifneq ($(CONFIG_ARCH_SOCFPGA),)
1184 quiet_cmd_socboot = SOCBOOT $@
1185 cmd_socboot = cat       spl/u-boot-spl.sfp spl/u-boot-spl.sfp   \
1186                         spl/u-boot-spl.sfp spl/u-boot-spl.sfp   \
1187                         u-boot.img > $@ || rm -f $@
1188 u-boot-with-spl.sfp: spl/u-boot-spl.sfp u-boot.img FORCE
1189         $(call if_changed,socboot)
1190 endif
1191
1192 # x86 uses a large ROM. We fill it with 0xff, put the 16-bit stuff (including
1193 # reset vector) at the top, Intel ME descriptor at the bottom, and U-Boot in
1194 # the middle. This is handled by binman based on an image description in the
1195 # board's device tree.
1196 ifneq ($(CONFIG_X86_RESET_VECTOR),)
1197 rom: u-boot.rom FORCE
1198
1199 refcode.bin: $(srctree)/board/$(BOARDDIR)/refcode.bin FORCE
1200         $(call if_changed,copy)
1201
1202 quiet_cmd_ldr = LD      $@
1203 cmd_ldr = $(LD) $(LDFLAGS_$(@F)) \
1204                $(filter-out FORCE,$^) -o $@
1205
1206 u-boot.rom: u-boot-x86-16bit.bin u-boot.bin \
1207                 $(if $(CONFIG_SPL_X86_16BIT_INIT),spl/u-boot-spl.bin) \
1208                 $(if $(CONFIG_HAVE_REFCODE),refcode.bin) FORCE
1209         $(call if_changed,binman)
1210
1211 OBJCOPYFLAGS_u-boot-x86-16bit.bin := -O binary -j .start16 -j .resetvec
1212 u-boot-x86-16bit.bin: u-boot FORCE
1213         $(call if_changed,objcopy)
1214 endif
1215
1216 ifneq ($(CONFIG_ARCH_SUNXI),)
1217 ifeq ($(CONFIG_ARM64),)
1218 u-boot-sunxi-with-spl.bin: spl/sunxi-spl.bin u-boot.img u-boot.dtb FORCE
1219         $(call if_changed,binman)
1220 else
1221 u-boot-sunxi-with-spl.bin: spl/sunxi-spl.bin u-boot.itb FORCE
1222         $(call if_changed,cat)
1223 endif
1224 endif
1225
1226 ifneq ($(CONFIG_TEGRA),)
1227 ifneq ($(CONFIG_BINMAN),)
1228 u-boot-dtb-tegra.bin u-boot-tegra.bin u-boot-nodtb-tegra.bin: \
1229                 spl/u-boot-spl u-boot.bin FORCE
1230         $(call if_changed,binman)
1231 else
1232 OBJCOPYFLAGS_u-boot-nodtb-tegra.bin = -O binary --pad-to=$(CONFIG_SYS_TEXT_BASE)
1233 u-boot-nodtb-tegra.bin: spl/u-boot-spl u-boot-nodtb.bin FORCE
1234         $(call if_changed,pad_cat)
1235
1236 OBJCOPYFLAGS_u-boot-tegra.bin = -O binary --pad-to=$(CONFIG_SYS_TEXT_BASE)
1237 u-boot-tegra.bin: spl/u-boot-spl u-boot.bin FORCE
1238         $(call if_changed,pad_cat)
1239
1240 u-boot-dtb-tegra.bin: u-boot-tegra.bin FORCE
1241         $(call if_changed,copy)
1242 endif  # binman
1243 endif
1244
1245 OBJCOPYFLAGS_u-boot-app.efi := $(OBJCOPYFLAGS_EFI)
1246 u-boot-app.efi: u-boot FORCE
1247         $(call if_changed,zobjcopy)
1248
1249 u-boot.bin.o: u-boot.bin FORCE
1250         $(call if_changed,efipayload)
1251
1252 u-boot-payload.lds: $(LDSCRIPT_EFI) FORCE
1253         $(call if_changed_dep,cpp_lds)
1254
1255 # Rule to link the EFI payload which contains a stub and a U-Boot binary
1256 quiet_cmd_u-boot_payload ?= LD      $@
1257       cmd_u-boot_payload ?= $(LD) $(LDFLAGS_EFI_PAYLOAD) -o $@ \
1258       -T u-boot-payload.lds arch/x86/cpu/call32.o \
1259       lib/efi/efi.o lib/efi/efi_stub.o u-boot.bin.o \
1260       $(addprefix arch/$(ARCH)/lib/,$(EFISTUB))
1261
1262 u-boot-payload: u-boot.bin.o u-boot-payload.lds FORCE
1263         $(call if_changed,u-boot_payload)
1264
1265 OBJCOPYFLAGS_u-boot-payload.efi := $(OBJCOPYFLAGS_EFI)
1266 u-boot-payload.efi: u-boot-payload FORCE
1267         $(call if_changed,zobjcopy)
1268
1269 u-boot-img.bin: spl/u-boot-spl.bin u-boot.img FORCE
1270         $(call if_changed,cat)
1271
1272 #Add a target to create boot binary having SPL binary in PBI format
1273 #concatenated with u-boot binary. It is need by PowerPC SoC having
1274 #internal SRAM <= 512KB.
1275 MKIMAGEFLAGS_u-boot-spl.pbl = -n $(srctree)/$(CONFIG_SYS_FSL_PBL_RCW:"%"=%) \
1276                 -R $(srctree)/$(CONFIG_SYS_FSL_PBL_PBI:"%"=%) -T pblimage \
1277                 -A $(ARCH) -a $(CONFIG_SPL_TEXT_BASE)
1278
1279 spl/u-boot-spl.pbl: spl/u-boot-spl.bin FORCE
1280         $(call if_changed,mkimage)
1281
1282 ifeq ($(ARCH),arm)
1283 UBOOT_BINLOAD := u-boot.img
1284 else
1285 UBOOT_BINLOAD := u-boot.bin
1286 endif
1287
1288 OBJCOPYFLAGS_u-boot-with-spl-pbl.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) \
1289                           --gap-fill=0xff
1290
1291 u-boot-with-spl-pbl.bin: spl/u-boot-spl.pbl $(UBOOT_BINLOAD) FORCE
1292         $(call if_changed,pad_cat)
1293
1294 # PPC4xx needs the SPL at the end of the image, since the reset vector
1295 # is located at 0xfffffffc. So we can't use the "u-boot-img.bin" target
1296 # and need to introduce a new build target with the full blown U-Boot
1297 # at the start padded up to the start of the SPL image. And then concat
1298 # the SPL image to the end.
1299
1300 OBJCOPYFLAGS_u-boot-img-spl-at-end.bin := -I binary -O binary \
1301         --pad-to=$(CONFIG_UBOOT_PAD_TO) --gap-fill=0xff
1302 u-boot-img-spl-at-end.bin: u-boot.img spl/u-boot-spl.bin FORCE
1303         $(call if_changed,pad_cat)
1304
1305 # Create a new ELF from a raw binary file.
1306 ifndef PLATFORM_ELFENTRY
1307   PLATFORM_ELFENTRY = "_start"
1308 endif
1309 quiet_cmd_u-boot-elf ?= LD      $@
1310         cmd_u-boot-elf ?= $(LD) u-boot-elf.o -o $@ \
1311         --defsym=$(PLATFORM_ELFENTRY)=$(CONFIG_SYS_TEXT_BASE) \
1312         -Ttext=$(CONFIG_SYS_TEXT_BASE)
1313 u-boot.elf: u-boot.bin
1314         $(Q)$(OBJCOPY) -I binary $(PLATFORM_ELFFLAGS) $< u-boot-elf.o
1315         $(call if_changed,u-boot-elf)
1316
1317 ARCH_POSTLINK := $(wildcard $(srctree)/arch/$(ARCH)/Makefile.postlink)
1318
1319 # Rule to link u-boot
1320 # May be overridden by arch/$(ARCH)/config.mk
1321 quiet_cmd_u-boot__ ?= LD      $@
1322       cmd_u-boot__ ?= $(LD) $(LDFLAGS) $(LDFLAGS_u-boot) -o $@ \
1323       -T u-boot.lds $(u-boot-init)                             \
1324       --start-group $(u-boot-main) --end-group                 \
1325       $(PLATFORM_LIBS) -Map u-boot.map;                        \
1326       $(if $(ARCH_POSTLINK), $(MAKE) -f $(ARCH_POSTLINK) $@, true)
1327
1328 quiet_cmd_smap = GEN     common/system_map.o
1329 cmd_smap = \
1330         smap=`$(call SYSTEM_MAP,u-boot) | \
1331                 awk '$$2 ~ /[tTwW]/ {printf $$1 $$3 "\\\\000"}'` ; \
1332         $(CC) $(c_flags) -DSYSTEM_MAP="\"$${smap}\"" \
1333                 -c $(srctree)/common/system_map.c -o common/system_map.o
1334
1335 u-boot: $(u-boot-init) $(u-boot-main) u-boot.lds FORCE
1336         +$(call if_changed,u-boot__)
1337 ifeq ($(CONFIG_KALLSYMS),y)
1338         $(call cmd,smap)
1339         $(call cmd,u-boot__) common/system_map.o
1340 endif
1341
1342 ifeq ($(CONFIG_RISCV),y)
1343         @tools/prelink-riscv $@ 0
1344 endif
1345
1346 quiet_cmd_sym ?= SYM     $@
1347       cmd_sym ?= $(OBJDUMP) -t $< > $@
1348 u-boot.sym: u-boot FORCE
1349         $(call if_changed,sym)
1350
1351 # The actual objects are generated when descending,
1352 # make sure no implicit rule kicks in
1353 $(sort $(u-boot-init) $(u-boot-main)): $(u-boot-dirs) ;
1354
1355 # Handle descending into subdirectories listed in $(vmlinux-dirs)
1356 # Preset locale variables to speed up the build process. Limit locale
1357 # tweaks to this spot to avoid wrong language settings when running
1358 # make menuconfig etc.
1359 # Error messages still appears in the original language
1360
1361 PHONY += $(u-boot-dirs)
1362 $(u-boot-dirs): prepare scripts
1363         $(Q)$(MAKE) $(build)=$@
1364
1365 tools: prepare
1366 # The "tools" are needed early
1367 $(filter-out tools, $(u-boot-dirs)): tools
1368 # The "examples" conditionally depend on U-Boot (say, when USE_PRIVATE_LIBGCC
1369 # is "yes"), so compile examples after U-Boot is compiled.
1370 examples: $(filter-out examples, $(u-boot-dirs))
1371
1372 define filechk_uboot.release
1373         echo "$(UBOOTVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))"
1374 endef
1375
1376 # Store (new) UBOOTRELEASE string in include/config/uboot.release
1377 include/config/uboot.release: include/config/auto.conf FORCE
1378         $(call filechk,uboot.release)
1379
1380
1381 # Things we need to do before we recursively start building the kernel
1382 # or the modules are listed in "prepare".
1383 # A multi level approach is used. prepareN is processed before prepareN-1.
1384 # archprepare is used in arch Makefiles and when processed asm symlink,
1385 # version.h and scripts_basic is processed / created.
1386
1387 # Listed in dependency order
1388 PHONY += prepare archprepare prepare0 prepare1 prepare2 prepare3
1389
1390 # prepare3 is used to check if we are building in a separate output directory,
1391 # and if so do:
1392 # 1) Check that make has not been executed in the kernel src $(srctree)
1393 prepare3: include/config/uboot.release
1394 ifneq ($(KBUILD_SRC),)
1395         @$(kecho) '  Using $(srctree) as source for U-Boot'
1396         $(Q)if [ -f $(srctree)/.config -o -d $(srctree)/include/config ]; then \
1397                 echo >&2 "  $(srctree) is not clean, please run 'make mrproper'"; \
1398                 echo >&2 "  in the '$(srctree)' directory.";\
1399                 /bin/false; \
1400         fi;
1401 endif
1402
1403 # prepare2 creates a makefile if using a separate output directory
1404 prepare2: prepare3 outputmakefile
1405
1406 prepare1: prepare2 $(version_h) $(timestamp_h) \
1407                    include/config/auto.conf
1408 ifeq ($(wildcard $(LDSCRIPT)),)
1409         @echo >&2 "  Could not find linker script."
1410         @/bin/false
1411 endif
1412
1413 ifeq ($(CONFIG_USE_DEFAULT_ENV_FILE),y)
1414 prepare1: $(defaultenv_h)
1415 endif
1416
1417 archprepare: prepare1 scripts_basic
1418
1419 prepare0: archprepare FORCE
1420         $(Q)$(MAKE) $(build)=.
1421
1422 # All the preparing..
1423 prepare: prepare0
1424
1425 # Generate some files
1426 # ---------------------------------------------------------------------------
1427
1428 define filechk_version.h
1429         (echo \#define PLAIN_VERSION \"$(UBOOTRELEASE)\"; \
1430         echo \#define U_BOOT_VERSION \"U-Boot \" PLAIN_VERSION; \
1431         echo \#define CC_VERSION_STRING \"$$(LC_ALL=C $(CC) --version | head -n 1)\"; \
1432         echo \#define LD_VERSION_STRING \"$$(LC_ALL=C $(LD) --version | head -n 1)\"; )
1433 endef
1434
1435 # The SOURCE_DATE_EPOCH mechanism requires a date that behaves like GNU date.
1436 # The BSD date on the other hand behaves different and would produce errors
1437 # with the misused '-d' switch.  Respect that and search a working date with
1438 # well known pre- and suffixes for the GNU variant of date.
1439 define filechk_timestamp.h
1440         (if test -n "$${SOURCE_DATE_EPOCH}"; then \
1441                 SOURCE_DATE="@$${SOURCE_DATE_EPOCH}"; \
1442                 DATE=""; \
1443                 for date in gdate date.gnu date; do \
1444                         $${date} -u -d "$${SOURCE_DATE}" >/dev/null 2>&1 && DATE="$${date}"; \
1445                 done; \
1446                 if test -n "$${DATE}"; then \
1447                         LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_DATE "%b %d %C%y"'; \
1448                         LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_TIME "%T"'; \
1449                         LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_TZ "%z"'; \
1450                         LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_DMI_DATE "%m/%d/%Y"'; \
1451                         LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_BUILD_DATE 0x%Y%m%d'; \
1452                 else \
1453                         return 42; \
1454                 fi; \
1455         else \
1456                 LC_ALL=C date +'#define U_BOOT_DATE "%b %d %C%y"'; \
1457                 LC_ALL=C date +'#define U_BOOT_TIME "%T"'; \
1458                 LC_ALL=C date +'#define U_BOOT_TZ "%z"'; \
1459                 LC_ALL=C date +'#define U_BOOT_DMI_DATE "%m/%d/%Y"'; \
1460                 LC_ALL=C date +'#define U_BOOT_BUILD_DATE 0x%Y%m%d'; \
1461         fi)
1462 endef
1463
1464 define filechk_defaultenv.h
1465         (grep -v '^#' | \
1466          grep -v '^$$' | \
1467          tr '\n' '\0' | \
1468          sed -e 's/\\\x0/\n/' | \
1469          xxd -i ; echo ", 0x00" ; )
1470 endef
1471
1472 $(version_h): include/config/uboot.release FORCE
1473         $(call filechk,version.h)
1474
1475 $(timestamp_h): $(srctree)/Makefile FORCE
1476         $(call filechk,timestamp.h)
1477
1478 $(defaultenv_h): $(CONFIG_DEFAULT_ENV_FILE:"%"=%) FORCE
1479         $(call filechk,defaultenv.h)
1480
1481 # ---------------------------------------------------------------------------
1482 quiet_cmd_cpp_lds = LDS     $@
1483 cmd_cpp_lds = $(CPP) -Wp,-MD,$(depfile) $(cpp_flags) $(LDPPFLAGS) \
1484                 -D__ASSEMBLY__ -x assembler-with-cpp -P -o $@ $<
1485
1486 u-boot.lds: $(LDSCRIPT) prepare FORCE
1487         $(call if_changed_dep,cpp_lds)
1488
1489 spl/u-boot-spl.bin: spl/u-boot-spl
1490         @:
1491 spl/u-boot-spl: tools prepare \
1492                 $(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_SPL_OF_PLATDATA),dts/dt.dtb) \
1493                 $(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_TPL_OF_PLATDATA),dts/dt.dtb)
1494         $(Q)$(MAKE) obj=spl -f $(srctree)/scripts/Makefile.spl all
1495
1496 spl/sunxi-spl.bin: spl/u-boot-spl
1497         @:
1498
1499 spl/sunxi-spl-with-ecc.bin: spl/sunxi-spl.bin
1500         @:
1501
1502 spl/u-boot-spl.sfp: spl/u-boot-spl
1503         @:
1504
1505 spl/boot.bin: spl/u-boot-spl
1506         @:
1507
1508 tpl/u-boot-tpl.bin: tools prepare \
1509                 $(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_SPL_OF_PLATDATA),dts/dt.dtb)
1510         $(Q)$(MAKE) obj=tpl -f $(srctree)/scripts/Makefile.spl all
1511
1512 TAG_SUBDIRS := $(patsubst %,$(srctree)/%,$(u-boot-dirs) include)
1513
1514 FIND := find
1515 FINDFLAGS := -L
1516
1517 tags ctags:
1518                 ctags -w -o ctags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \
1519                                                 -name '*.[chS]' -print`
1520                 ln -s ctags tags
1521
1522 etags:
1523                 etags -a -o etags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \
1524                                                 -name '*.[chS]' -print`
1525 cscope:
1526                 $(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) -name '*.[chS]' -print > \
1527                                                 cscope.files
1528                 cscope -b -q -k
1529
1530 SYSTEM_MAP = \
1531                 $(NM) $1 | \
1532                 grep -v '\(compiled\)\|\(\.o$$\)\|\( [aUw] \)\|\(\.\.ng$$\)\|\(LASH[RL]DI\)' | \
1533                 LC_ALL=C sort
1534 System.map:     u-boot
1535                 @$(call SYSTEM_MAP,$<) > $@
1536
1537 #########################################################################
1538
1539 # ARM relocations should all be R_ARM_RELATIVE (32-bit) or
1540 # R_AARCH64_RELATIVE (64-bit).
1541 checkarmreloc: u-boot
1542         @RELOC="`$(CROSS_COMPILE)readelf -r -W $< | cut -d ' ' -f 4 | \
1543                 grep R_A | sort -u`"; \
1544         if test "$$RELOC" != "R_ARM_RELATIVE" -a \
1545                  "$$RELOC" != "R_AARCH64_RELATIVE"; then \
1546                 echo "$< contains unexpected relocations: $$RELOC"; \
1547                 false; \
1548         fi
1549
1550 envtools: scripts_basic $(version_h) $(timestamp_h)
1551         $(Q)$(MAKE) $(build)=tools/env
1552
1553 tools-only: scripts_basic $(version_h) $(timestamp_h)
1554         $(Q)$(MAKE) $(build)=tools
1555
1556 tools-all: export HOST_TOOLS_ALL=y
1557 tools-all: envtools tools ;
1558
1559 cross_tools: export CROSS_BUILD_TOOLS=y
1560 cross_tools: tools ;
1561
1562 .PHONY : CHANGELOG
1563 CHANGELOG:
1564         git log --no-merges U-Boot-1_1_5.. | \
1565         unexpand -a | sed -e 's/\s\s*$$//' > $@
1566
1567 #########################################################################
1568
1569 ###
1570 # Cleaning is done on three levels.
1571 # make clean     Delete most generated files
1572 #                Leave enough to build external modules
1573 # make mrproper  Delete the current configuration, and all generated files
1574 # make distclean Remove editor backup files, patch leftover files and the like
1575
1576 # Directories & files removed with 'make clean'
1577 CLEAN_DIRS  += $(MODVERDIR) \
1578                $(foreach d, spl tpl, $(patsubst %,$d/%, \
1579                         $(filter-out include, $(shell ls -1 $d 2>/dev/null))))
1580
1581 CLEAN_FILES += include/bmp_logo.h include/bmp_logo_data.h \
1582                boot* u-boot* MLO* SPL System.map fit-dtb.blob
1583
1584 # Directories & files removed with 'make mrproper'
1585 MRPROPER_DIRS  += include/config include/generated spl tpl \
1586                   .tmp_objdiff
1587 MRPROPER_FILES += .config .config.old include/autoconf.mk* include/config.h \
1588                   ctags etags tags TAGS cscope* GPATH GTAGS GRTAGS GSYMS
1589
1590 # clean - Delete most, but leave enough to build external modules
1591 #
1592 clean: rm-dirs  := $(CLEAN_DIRS)
1593 clean: rm-files := $(CLEAN_FILES)
1594
1595 clean-dirs      := $(foreach f,$(u-boot-alldirs),$(if $(wildcard $(srctree)/$f/Makefile),$f))
1596
1597 clean-dirs      := $(addprefix _clean_, $(clean-dirs) doc/DocBook)
1598
1599 PHONY += $(clean-dirs) clean archclean
1600 $(clean-dirs):
1601         $(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$@)
1602
1603 # TODO: Do not use *.cfgtmp
1604 clean: $(clean-dirs)
1605         $(call cmd,rmdirs)
1606         $(call cmd,rmfiles)
1607         @find $(if $(KBUILD_EXTMOD), $(KBUILD_EXTMOD), .) $(RCS_FIND_IGNORE) \
1608                 \( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \
1609                 -o -name '*.ko.*' -o -name '*.su' -o -name '*.cfgtmp' \
1610                 -o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \
1611                 -o -name '*.symtypes' -o -name 'modules.order' \
1612                 -o -name modules.builtin -o -name '.tmp_*.o.*' \
1613                 -o -name 'dsdt.aml' -o -name 'dsdt.asl.tmp' -o -name 'dsdt.c' \
1614                 -o -name '*.gcno' \) -type f -print | xargs rm -f
1615
1616 # mrproper - Delete all generated files, including .config
1617 #
1618 mrproper: rm-dirs  := $(wildcard $(MRPROPER_DIRS))
1619 mrproper: rm-files := $(wildcard $(MRPROPER_FILES))
1620 mrproper-dirs      := $(addprefix _mrproper_,scripts)
1621
1622 PHONY += $(mrproper-dirs) mrproper archmrproper
1623 $(mrproper-dirs):
1624         $(Q)$(MAKE) $(clean)=$(patsubst _mrproper_%,%,$@)
1625
1626 mrproper: clean $(mrproper-dirs)
1627         $(call cmd,rmdirs)
1628         $(call cmd,rmfiles)
1629         @rm -f arch/*/include/asm/arch
1630
1631 # distclean
1632 #
1633 PHONY += distclean
1634
1635 distclean: mrproper
1636         @find $(srctree) $(RCS_FIND_IGNORE) \
1637                 \( -name '*.orig' -o -name '*.rej' -o -name '*~' \
1638                 -o -name '*.bak' -o -name '#*#' -o -name '.*.orig' \
1639                 -o -name '.*.rej' -o -name '*%' -o -name 'core' \
1640                 -o -name '*.pyc' \) \
1641                 -type f -print | xargs rm -f
1642         @rm -f boards.cfg
1643
1644 backup:
1645         F=`basename $(srctree)` ; cd .. ; \
1646         gtar --force-local -zcvf `LC_ALL=C date "+$$F-%Y-%m-%d-%T.tar.gz"` $$F
1647
1648 help:
1649         @echo  'Cleaning targets:'
1650         @echo  '  clean           - Remove most generated files but keep the config'
1651         @echo  '  mrproper        - Remove all generated files + config + various backup files'
1652         @echo  '  distclean       - mrproper + remove editor backup and patch files'
1653         @echo  ''
1654         @echo  'Configuration targets:'
1655         @$(MAKE) -f $(srctree)/scripts/kconfig/Makefile help
1656         @echo  ''
1657         @echo  'Other generic targets:'
1658         @echo  '  all             - Build all necessary images depending on configuration'
1659         @echo  '  tests           - Build U-Boot for sandbox and run tests'
1660         @echo  '* u-boot          - Build the bare u-boot'
1661         @echo  '  dir/            - Build all files in dir and below'
1662         @echo  '  dir/file.[oisS] - Build specified target only'
1663         @echo  '  dir/file.lst    - Build specified mixed source/assembly target only'
1664         @echo  '                    (requires a recent binutils and recent build (System.map))'
1665         @echo  '  tags/ctags      - Generate ctags file for editors'
1666         @echo  '  etags           - Generate etags file for editors'
1667         @echo  '  cscope          - Generate cscope index'
1668         @echo  '  ubootrelease    - Output the release version string (use with make -s)'
1669         @echo  '  ubootversion    - Output the version stored in Makefile (use with make -s)'
1670         @echo  "  cfg             - Don't build, just create the .cfg files"
1671         @echo  "  envtools        - Build only the target-side environment tools"
1672         @echo  ''
1673         @echo  'Static analysers'
1674         @echo  '  checkstack      - Generate a list of stack hogs'
1675         @echo  '  coccicheck      - Execute static code analysis with Coccinelle'
1676         @echo  ''
1677         @echo  'Documentation targets:'
1678         @$(MAKE) -f $(srctree)/doc/DocBook/Makefile dochelp
1679         @echo  ''
1680         @echo  '  make V=0|1 [targets] 0 => quiet build (default), 1 => verbose build'
1681         @echo  '  make V=2   [targets] 2 => give reason for rebuild of target'
1682         @echo  '  make O=dir [targets] Locate all output files in "dir", including .config'
1683         @echo  '  make C=1   [targets] Check all c source with $$CHECK (sparse by default)'
1684         @echo  '  make C=2   [targets] Force check of all c source with $$CHECK'
1685         @echo  '  make RECORDMCOUNT_WARN=1 [targets] Warn about ignored mcount sections'
1686         @echo  '  make W=n   [targets] Enable extra gcc checks, n=1,2,3 where'
1687         @echo  '                1: warnings which may be relevant and do not occur too often'
1688         @echo  '                2: warnings which occur quite often but may still be relevant'
1689         @echo  '                3: more obscure warnings, can most likely be ignored'
1690         @echo  '                Multiple levels can be combined with W=12 or W=123'
1691         @echo  ''
1692         @echo  'Execute "make" or "make all" to build all targets marked with [*] '
1693         @echo  'For further info see the ./README file'
1694
1695 tests:
1696         $(srctree)/test/run
1697
1698 # Documentation targets
1699 # ---------------------------------------------------------------------------
1700 %docs: scripts_basic FORCE
1701         $(Q)$(MAKE) $(build)=scripts build_docproc
1702         $(Q)$(MAKE) $(build)=doc/DocBook $@
1703
1704 endif #ifeq ($(config-targets),1)
1705 endif #ifeq ($(mixed-targets),1)
1706
1707 PHONY += checkstack ubootrelease ubootversion
1708
1709 checkstack:
1710         $(OBJDUMP) -d u-boot $$(find . -name u-boot-spl) | \
1711         $(PERL) $(src)/scripts/checkstack.pl $(ARCH)
1712
1713 ubootrelease:
1714         @echo "$(UBOOTVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))"
1715
1716 ubootversion:
1717         @echo $(UBOOTVERSION)
1718
1719 # Single targets
1720 # ---------------------------------------------------------------------------
1721 # Single targets are compatible with:
1722 # - build with mixed source and output
1723 # - build with separate output dir 'make O=...'
1724 # - external modules
1725 #
1726 #  target-dir => where to store outputfile
1727 #  build-dir  => directory in kernel source tree to use
1728
1729 ifeq ($(KBUILD_EXTMOD),)
1730         build-dir  = $(patsubst %/,%,$(dir $@))
1731         target-dir = $(dir $@)
1732 else
1733         zap-slash=$(filter-out .,$(patsubst %/,%,$(dir $@)))
1734         build-dir  = $(KBUILD_EXTMOD)$(if $(zap-slash),/$(zap-slash))
1735         target-dir = $(if $(KBUILD_EXTMOD),$(dir $<),$(dir $@))
1736 endif
1737
1738 %.s: %.c prepare scripts FORCE
1739         $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1740 %.i: %.c prepare scripts FORCE
1741         $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1742 %.o: %.c prepare scripts FORCE
1743         $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1744 %.lst: %.c prepare scripts FORCE
1745         $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1746 %.s: %.S prepare scripts FORCE
1747         $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1748 %.o: %.S prepare scripts FORCE
1749         $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1750 %.symtypes: %.c prepare scripts FORCE
1751         $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1752
1753 # Modules
1754 /: prepare scripts FORCE
1755         $(cmd_crmodverdir)
1756         $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \
1757         $(build)=$(build-dir)
1758 %/: prepare scripts FORCE
1759         $(cmd_crmodverdir)
1760         $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \
1761         $(build)=$(build-dir)
1762 %.ko: prepare scripts FORCE
1763         $(cmd_crmodverdir)
1764         $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1)   \
1765         $(build)=$(build-dir) $(@:.ko=.o)
1766         $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost
1767
1768 # Consistency checks
1769 # ---------------------------------------------------------------------------
1770
1771 PHONY += coccicheck
1772
1773 coccicheck:
1774         $(Q)$(CONFIG_SHELL) $(srctree)/scripts/$@
1775
1776 # FIXME Should go into a make.lib or something
1777 # ===========================================================================
1778
1779 quiet_cmd_rmdirs = $(if $(wildcard $(rm-dirs)),CLEAN   $(wildcard $(rm-dirs)))
1780       cmd_rmdirs = rm -rf $(rm-dirs)
1781
1782 quiet_cmd_rmfiles = $(if $(wildcard $(rm-files)),CLEAN   $(wildcard $(rm-files)))
1783       cmd_rmfiles = rm -f $(rm-files)
1784
1785 # read all saved command lines
1786
1787 targets := $(wildcard $(sort $(targets)))
1788 cmd_files := $(wildcard .*.cmd $(foreach f,$(targets),$(dir $(f)).$(notdir $(f)).cmd))
1789
1790 ifneq ($(cmd_files),)
1791   $(cmd_files): ;       # Do not try to update included dependency files
1792   include $(cmd_files)
1793 endif
1794
1795 endif   # skip-makefile
1796
1797 PHONY += FORCE
1798 FORCE:
1799
1800 # Declare the contents of the .PHONY variable as phony.  We keep that
1801 # information in a variable so we can use it in if_changed and friends.
1802 .PHONY: $(PHONY)