Makefile

   1 # SPDX-License-Identifier: GPL-2.0+
   2
   3 VERSION = 2019
   4 PATCHLEVEL = 01
   5 SUBLEVEL =
   6 EXTRAVERSION = -rc1
   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 # Snow Leopards build environment has no longer restrictions as described above
 295 HOSTCC       = $(call os_x_before, 10, 5, "cc", "gcc")
 296 HOSTCFLAGS  += $(call os_x_before, 10, 4, "-traditional-cpp")
 297 HOSTLDFLAGS += $(call os_x_before, 10, 5, "-multiply_defined suppress")
 298
 299 # since Lion (10.7) ASLR is on by default, but we use linker generated lists
 300 # in some host tools which is a problem then ... so disable ASLR for these
 301 # tools
 302 HOSTLDFLAGS += $(call os_x_before, 10, 7, "", "-Xlinker -no_pie")
 303 endif
 304
 305 # Decide whether to build built-in, modular, or both.
 306 # Normally, just do built-in.
 307
 308 KBUILD_MODULES :=
 309 KBUILD_BUILTIN := 1
 310
 311 # If we have only "make modules", don't compile built-in objects.
 312 # When we're building modules with modversions, we need to consider
 313 # the built-in objects during the descend as well, in order to
 314 # make sure the checksums are up to date before we record them.
 315
 316 ifeq ($(MAKECMDGOALS),modules)
 317   KBUILD_BUILTIN := $(if $(CONFIG_MODVERSIONS),1)
 318 endif
 319
 320 # If we have "make <whatever> modules", compile modules
 321 # in addition to whatever we do anyway.
 322 # Just "make" or "make all" shall build modules as well
 323
 324 # U-Boot does not need modules
 325 #ifneq ($(filter all _all modules,$(MAKECMDGOALS)),)
 326 #  KBUILD_MODULES := 1
 327 #endif
 328
 329 #ifeq ($(MAKECMDGOALS),)
 330 #  KBUILD_MODULES := 1
 331 #endif
 332
 333 export KBUILD_MODULES KBUILD_BUILTIN
 334 export KBUILD_CHECKSRC KBUILD_SRC KBUILD_EXTMOD
 335
 336 # We need some generic definitions (do not try to remake the file).
 337 scripts/Kbuild.include: ;
 338 include scripts/Kbuild.include
 339
 340 # Make variables (CC, etc...)
 341
 342 AS              = $(CROSS_COMPILE)as
 343 # Always use GNU ld
 344 ifneq ($(shell $(CROSS_COMPILE)ld.bfd -v 2> /dev/null),)
 345 LD              = $(CROSS_COMPILE)ld.bfd
 346 else
 347 LD              = $(CROSS_COMPILE)ld
 348 endif
 349 CC              = $(CROSS_COMPILE)gcc
 350 CPP             = $(CC) -E
 351 AR              = $(CROSS_COMPILE)ar
 352 NM              = $(CROSS_COMPILE)nm
 353 LDR             = $(CROSS_COMPILE)ldr
 354 STRIP           = $(CROSS_COMPILE)strip
 355 OBJCOPY         = $(CROSS_COMPILE)objcopy
 356 OBJDUMP         = $(CROSS_COMPILE)objdump
 357 LEX             = flex
 358 YACC            = bison
 359 AWK             = awk
 360 PERL            = perl
 361 PYTHON          ?= python
 362 PYTHON2         = python2
 363 PYTHON3         = python3
 364 DTC             ?= $(objtree)/scripts/dtc/dtc
 365 CHECK           = sparse
 366
 367 CHECKFLAGS     := -D__linux__ -Dlinux -D__STDC__ -Dunix -D__unix__ \
 368                   -Wbitwise -Wno-return-void -D__CHECK_ENDIAN__ $(CF)
 369
 370 KBUILD_CPPFLAGS := -D__KERNEL__ -D__UBOOT__
 371
 372 KBUILD_CFLAGS   := -Wall -Wstrict-prototypes \
 373                    -Wno-format-security \
 374                    -fno-builtin -ffreestanding $(CSTD_FLAG)
 375 KBUILD_CFLAGS   += -fshort-wchar -fno-strict-aliasing
 376 KBUILD_AFLAGS   := -D__ASSEMBLY__
 377
 378 # Don't generate position independent code
 379 KBUILD_CFLAGS   += $(call cc-option,-fno-PIE)
 380 KBUILD_AFLAGS   += $(call cc-option,-fno-PIE)
 381
 382 # Read UBOOTRELEASE from include/config/uboot.release (if it exists)
 383 UBOOTRELEASE = $(shell cat include/config/uboot.release 2> /dev/null)
 384 UBOOTVERSION = $(VERSION)$(if $(PATCHLEVEL),.$(PATCHLEVEL)$(if $(SUBLEVEL),.$(SUBLEVEL)))$(EXTRAVERSION)
 385
 386 export VERSION PATCHLEVEL SUBLEVEL UBOOTRELEASE UBOOTVERSION
 387 export ARCH CPU BOARD VENDOR SOC CPUDIR BOARDDIR
 388 export CONFIG_SHELL HOSTCC HOSTCFLAGS HOSTLDFLAGS CROSS_COMPILE AS LD CC
 389 export CPP AR NM LDR STRIP OBJCOPY OBJDUMP
 390 export MAKE LEX YACC AWK PERL PYTHON PYTHON2 PYTHON3
 391 export HOSTCXX HOSTCXXFLAGS CHECK CHECKFLAGS DTC DTC_FLAGS
 392
 393 export KBUILD_CPPFLAGS NOSTDINC_FLAGS UBOOTINCLUDE OBJCOPYFLAGS LDFLAGS
 394 export KBUILD_CFLAGS KBUILD_AFLAGS
 395
 396 # When compiling out-of-tree modules, put MODVERDIR in the module
 397 # tree rather than in the kernel tree. The kernel tree might
 398 # even be read-only.
 399 export MODVERDIR := $(if $(KBUILD_EXTMOD),$(firstword $(KBUILD_EXTMOD))/).tmp_versions
 400
 401 # Files to ignore in find ... statements
 402
 403 export RCS_FIND_IGNORE := \( -name SCCS -o -name BitKeeper -o -name .svn -o    \
 404                           -name CVS -o -name .pc -o -name .hg -o -name .git \) \
 405                           -prune -o
 406 export RCS_TAR_IGNORE := --exclude SCCS --exclude BitKeeper --exclude .svn \
 407                          --exclude CVS --exclude .pc --exclude .hg --exclude .git
 408
 409 # ===========================================================================
 410 # Rules shared between *config targets and build targets
 411
 412 # Basic helpers built in scripts/
 413 PHONY += scripts_basic
 414 scripts_basic:
 415         $(Q)$(MAKE) $(build)=scripts/basic
 416         $(Q)rm -f .tmp_quiet_recordmcount
 417
 418 # To avoid any implicit rule to kick in, define an empty command.
 419 scripts/basic/%: scripts_basic ;
 420
 421 PHONY += outputmakefile
 422 # outputmakefile generates a Makefile in the output directory, if using a
 423 # separate output directory. This allows convenient use of make in the
 424 # output directory.
 425 outputmakefile:
 426 ifneq ($(KBUILD_SRC),)
 427         $(Q)ln -fsn $(srctree) source
 428         $(Q)$(CONFIG_SHELL) $(srctree)/scripts/mkmakefile \
 429             $(srctree) $(objtree) $(VERSION) $(PATCHLEVEL)
 430 endif
 431
 432 # To make sure we do not include .config for any of the *config targets
 433 # catch them early, and hand them over to scripts/kconfig/Makefile
 434 # It is allowed to specify more targets when calling make, including
 435 # mixing *config targets and build targets.
 436 # For example 'make oldconfig all'.
 437 # Detect when mixed targets is specified, and make a second invocation
 438 # of make so .config is not included in this case either (for *config).
 439
 440 version_h := include/generated/version_autogenerated.h
 441 timestamp_h := include/generated/timestamp_autogenerated.h
 442 defaultenv_h := include/generated/defaultenv_autogenerated.h
 443
 444 no-dot-config-targets := clean clobber mrproper distclean \
 445                          help %docs check% coccicheck \
 446                          ubootversion backup tests check qcheck
 447
 448 config-targets := 0
 449 mixed-targets  := 0
 450 dot-config     := 1
 451
 452 ifneq ($(filter $(no-dot-config-targets), $(MAKECMDGOALS)),)
 453         ifeq ($(filter-out $(no-dot-config-targets), $(MAKECMDGOALS)),)
 454                 dot-config := 0
 455         endif
 456 endif
 457
 458 ifeq ($(KBUILD_EXTMOD),)
 459         ifneq ($(filter config %config,$(MAKECMDGOALS)),)
 460                 config-targets := 1
 461                 ifneq ($(words $(MAKECMDGOALS)),1)
 462                         mixed-targets := 1
 463                 endif
 464         endif
 465 endif
 466
 467 ifeq ($(mixed-targets),1)
 468 # ===========================================================================
 469 # We're called with mixed targets (*config and build targets).
 470 # Handle them one by one.
 471
 472 PHONY += $(MAKECMDGOALS) __build_one_by_one
 473
 474 $(filter-out __build_one_by_one, $(MAKECMDGOALS)): __build_one_by_one
 475         @:
 476
 477 __build_one_by_one:
 478         $(Q)set -e; \
 479         for i in $(MAKECMDGOALS); do \
 480                 $(MAKE) -f $(srctree)/Makefile $$i; \
 481         done
 482
 483 else
 484 ifeq ($(config-targets),1)
 485 # ===========================================================================
 486 # *config targets only - make sure prerequisites are updated, and descend
 487 # in scripts/kconfig to make the *config target
 488
 489 KBUILD_DEFCONFIG := sandbox_defconfig
 490 export KBUILD_DEFCONFIG KBUILD_KCONFIG
 491
 492 config: scripts_basic outputmakefile FORCE
 493         $(Q)$(MAKE) $(build)=scripts/kconfig $@
 494
 495 %config: scripts_basic outputmakefile FORCE
 496         $(Q)$(MAKE) $(build)=scripts/kconfig $@
 497
 498 else
 499 # ===========================================================================
 500 # Build targets only - this includes vmlinux, arch specific targets, clean
 501 # targets and others. In general all targets except *config targets.
 502
 503 # Additional helpers built in scripts/
 504 # Carefully list dependencies so we do not try to build scripts twice
 505 # in parallel
 506 PHONY += scripts
 507 scripts: scripts_basic include/config/auto.conf
 508         $(Q)$(MAKE) $(build)=$(@)
 509
 510 ifeq ($(dot-config),1)
 511 # Read in config
 512 -include include/config/auto.conf
 513
 514 # Read in dependencies to all Kconfig* files, make sure to run
 515 # oldconfig if changes are detected.
 516 -include include/config/auto.conf.cmd
 517
 518 # To avoid any implicit rule to kick in, define an empty command
 519 $(KCONFIG_CONFIG) include/config/auto.conf.cmd: ;
 520
 521 # If .config is newer than include/config/auto.conf, someone tinkered
 522 # with it and forgot to run make oldconfig.
 523 # if auto.conf.cmd is missing then we are probably in a cleaned tree so
 524 # we execute the config step to be sure to catch updated Kconfig files
 525 include/config/%.conf: $(KCONFIG_CONFIG) include/config/auto.conf.cmd
 526         $(Q)$(MAKE) -f $(srctree)/Makefile syncconfig
 527         @# If the following part fails, include/config/auto.conf should be
 528         @# deleted so "make silentoldconfig" will be re-run on the next build.
 529         $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.autoconf || \
 530                 { rm -f include/config/auto.conf; false; }
 531         @# include/config.h has been updated after "make silentoldconfig".
 532         @# We need to touch include/config/auto.conf so it gets newer
 533         @# than include/config.h.
 534         @# Otherwise, 'make silentoldconfig' would be invoked twice.
 535         $(Q)touch include/config/auto.conf
 536
 537 u-boot.cfg spl/u-boot.cfg tpl/u-boot.cfg: include/config.h FORCE
 538         $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.autoconf $(@)
 539
 540 -include include/autoconf.mk
 541 -include include/autoconf.mk.dep
 542
 543 # We want to include arch/$(ARCH)/config.mk only when include/config/auto.conf
 544 # is up-to-date. When we switch to a different board configuration, old CONFIG
 545 # macros are still remaining in include/config/auto.conf. Without the following
 546 # gimmick, wrong config.mk would be included leading nasty warnings/errors.
 547 ifneq ($(wildcard $(KCONFIG_CONFIG)),)
 548 ifneq ($(wildcard include/config/auto.conf),)
 549 autoconf_is_old := $(shell find . -path ./$(KCONFIG_CONFIG) -newer \
 550                                                 include/config/auto.conf)
 551 ifeq ($(autoconf_is_old),)
 552 include config.mk
 553 include arch/$(ARCH)/Makefile
 554 endif
 555 endif
 556 endif
 557
 558 # These are set by the arch-specific config.mk. Make sure they are exported
 559 # so they can be used when building an EFI application.
 560 export EFI_LDS          # Filename of EFI link script in arch/$(ARCH)/lib
 561 export EFI_CRT0         # Filename of EFI CRT0 in arch/$(ARCH)/lib
 562 export EFI_RELOC        # Filename of EFU relocation code in arch/$(ARCH)/lib
 563 export CFLAGS_EFI       # Compiler flags to add when building EFI app
 564 export CFLAGS_NON_EFI   # Compiler flags to remove when building EFI app
 565 export EFI_TARGET       # binutils target if EFI is natively supported
 566
 567 # If board code explicitly specified LDSCRIPT or CONFIG_SYS_LDSCRIPT, use
 568 # that (or fail if absent).  Otherwise, search for a linker script in a
 569 # standard location.
 570
 571 ifndef LDSCRIPT
 572         #LDSCRIPT := $(srctree)/board/$(BOARDDIR)/u-boot.lds.debug
 573         ifdef CONFIG_SYS_LDSCRIPT
 574                 # need to strip off double quotes
 575                 LDSCRIPT := $(srctree)/$(CONFIG_SYS_LDSCRIPT:"%"=%)
 576         endif
 577 endif
 578
 579 # If there is no specified link script, we look in a number of places for it
 580 ifndef LDSCRIPT
 581         ifeq ($(wildcard $(LDSCRIPT)),)
 582                 LDSCRIPT := $(srctree)/board/$(BOARDDIR)/u-boot.lds
 583         endif
 584         ifeq ($(wildcard $(LDSCRIPT)),)
 585                 LDSCRIPT := $(srctree)/$(CPUDIR)/u-boot.lds
 586         endif
 587         ifeq ($(wildcard $(LDSCRIPT)),)
 588                 LDSCRIPT := $(srctree)/arch/$(ARCH)/cpu/u-boot.lds
 589         endif
 590 endif
 591
 592 else
 593 # Dummy target needed, because used as prerequisite
 594 include/config/auto.conf: ;
 595 endif # $(dot-config)
 596
 597 #
 598 # Xtensa linker script cannot be preprocessed with -ansi because of
 599 # preprocessor operations on strings that don't make C identifiers.
 600 #
 601 ifeq ($(CONFIG_XTENSA),)
 602 LDPPFLAGS       += -ansi
 603 endif
 604
 605 ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE
 606 KBUILD_CFLAGS   += -Os
 607 else
 608 KBUILD_CFLAGS   += -O2
 609 endif
 610
 611 KBUILD_CFLAGS += $(call cc-option,-fno-stack-protector)
 612 KBUILD_CFLAGS += $(call cc-option,-fno-delete-null-pointer-checks)
 613
 614 # change __FILE__ to the relative path from the srctree
 615 KBUILD_CFLAGS   += $(call cc-option,-fmacro-prefix-map=$(srctree)/=)
 616
 617 KBUILD_CFLAGS   += -g
 618 # $(KBUILD_AFLAGS) sets -g, which causes gcc to pass a suitable -g<format>
 619 # option to the assembler.
 620 KBUILD_AFLAGS   += -g
 621
 622 # Report stack usage if supported
 623 # ARC tools based on GCC 7.1 has an issue with stack usage
 624 # with naked functions, see commit message for more details
 625 ifndef CONFIG_ARC
 626 ifeq ($(shell $(CONFIG_SHELL) $(srctree)/scripts/gcc-stack-usage.sh $(CC)),y)
 627         KBUILD_CFLAGS += -fstack-usage
 628 endif
 629 endif
 630
 631 KBUILD_CFLAGS += $(call cc-option,-Wno-format-nonliteral)
 632 ifeq ($(cc-name),clang)
 633 KBUILD_CPPFLAGS += $(call cc-option,-Qunused-arguments,)
 634 KBUILD_CFLAGS += $(call cc-disable-warning, format-invalid-specifier)
 635 KBUILD_CFLAGS += $(call cc-disable-warning, gnu)
 636 KBUILD_CFLAGS += $(call cc-disable-warning, address-of-packed-member)
 637 KBUILD_CFLAGS += $(call cc-option, -fcatch-undefined-behavior)
 638 endif
 639
 640 # turn jbsr into jsr for m68k
 641 ifeq ($(ARCH),m68k)
 642 ifeq ($(findstring 3.4,$(shell $(CC) --version)),3.4)
 643 KBUILD_AFLAGS += -Wa,-gstabs,-S
 644 endif
 645 endif
 646
 647 # Prohibit date/time macros, which would make the build non-deterministic
 648 KBUILD_CFLAGS   += $(call cc-option,-Werror=date-time)
 649
 650 include scripts/Makefile.extrawarn
 651
 652 # Add user supplied CPPFLAGS, AFLAGS and CFLAGS as the last assignments
 653 KBUILD_CPPFLAGS += $(KCPPFLAGS)
 654 KBUILD_AFLAGS += $(KAFLAGS)
 655 KBUILD_CFLAGS += $(KCFLAGS)
 656
 657 # Use UBOOTINCLUDE when you must reference the include/ directory.
 658 # Needed to be compatible with the O= option
 659 UBOOTINCLUDE    := \
 660                 -Iinclude \
 661                 $(if $(KBUILD_SRC), -I$(srctree)/include) \
 662                 $(if $(CONFIG_$(SPL_)SYS_THUMB_BUILD), \
 663                         $(if $(CONFIG_HAS_THUMB2),, \
 664                                 -I$(srctree)/arch/$(ARCH)/thumb1/include),) \
 665                 -I$(srctree)/arch/$(ARCH)/include \
 666                 -include $(srctree)/include/linux/kconfig.h
 667
 668 NOSTDINC_FLAGS += -nostdinc -isystem $(shell $(CC) -print-file-name=include)
 669 CHECKFLAGS     += $(NOSTDINC_FLAGS)
 670
 671 # FIX ME
 672 cpp_flags := $(KBUILD_CPPFLAGS) $(PLATFORM_CPPFLAGS) $(UBOOTINCLUDE) \
 673                                                         $(NOSTDINC_FLAGS)
 674 c_flags := $(KBUILD_CFLAGS) $(cpp_flags)
 675
 676 #########################################################################
 677 # U-Boot objects....order is important (i.e. start must be first)
 678
 679 HAVE_VENDOR_COMMON_LIB = $(if $(wildcard $(srctree)/board/$(VENDOR)/common/Makefile),y,n)
 680
 681 libs-y += lib/
 682 libs-$(HAVE_VENDOR_COMMON_LIB) += board/$(VENDOR)/common/
 683 libs-$(CONFIG_OF_EMBED) += dts/
 684 libs-y += fs/
 685 libs-y += net/
 686 libs-y += disk/
 687 libs-y += drivers/
 688 libs-y += drivers/dma/
 689 libs-y += drivers/gpio/
 690 libs-y += drivers/i2c/
 691 libs-y += drivers/mtd/
 692 libs-$(CONFIG_CMD_NAND) += drivers/mtd/nand/raw/
 693 libs-y += drivers/mtd/onenand/
 694 libs-$(CONFIG_CMD_UBI) += drivers/mtd/ubi/
 695 libs-y += drivers/mtd/spi/
 696 libs-y += drivers/net/
 697 libs-y += drivers/net/phy/
 698 libs-y += drivers/pci/
 699 libs-y += drivers/power/ \
 700         drivers/power/domain/ \
 701         drivers/power/fuel_gauge/ \
 702         drivers/power/mfd/ \
 703         drivers/power/pmic/ \
 704         drivers/power/battery/ \
 705         drivers/power/regulator/
 706 libs-y += drivers/spi/
 707 libs-$(CONFIG_FMAN_ENET) += drivers/net/fm/
 708 libs-$(CONFIG_SYS_FSL_DDR) += drivers/ddr/fsl/
 709 libs-$(CONFIG_SYS_FSL_MMDC) += drivers/ddr/fsl/
 710 libs-$(CONFIG_ALTERA_SDRAM) += drivers/ddr/altera/
 711 libs-y += drivers/serial/
 712 libs-y += drivers/usb/dwc3/
 713 libs-y += drivers/usb/common/
 714 libs-y += drivers/usb/emul/
 715 libs-y += drivers/usb/eth/
 716 libs-y += drivers/usb/gadget/
 717 libs-y += drivers/usb/gadget/udc/
 718 libs-y += drivers/usb/host/
 719 libs-y += drivers/usb/musb/
 720 libs-y += drivers/usb/musb-new/
 721 libs-y += drivers/usb/phy/
 722 libs-y += drivers/usb/ulpi/
 723 libs-y += cmd/
 724 libs-y += common/
 725 libs-y += env/
 726 libs-$(CONFIG_API) += api/
 727 libs-$(CONFIG_HAS_POST) += post/
 728 libs-y += test/
 729 libs-y += test/dm/
 730 libs-$(CONFIG_UT_ENV) += test/env/
 731 libs-$(CONFIG_UT_OVERLAY) += test/overlay/
 732
 733 libs-y += $(if $(BOARDDIR),board/$(BOARDDIR)/)
 734
 735 libs-y := $(sort $(libs-y))
 736
 737 u-boot-dirs     := $(patsubst %/,%,$(filter %/, $(libs-y))) tools examples
 738
 739 u-boot-alldirs  := $(sort $(u-boot-dirs) $(patsubst %/,%,$(filter %/, $(libs-))))
 740
 741 libs-y          := $(patsubst %/, %/built-in.o, $(libs-y))
 742
 743 u-boot-init := $(head-y)
 744 u-boot-main := $(libs-y)
 745
 746
 747 # Add GCC lib
 748 ifeq ($(CONFIG_USE_PRIVATE_LIBGCC),y)
 749 PLATFORM_LIBGCC = arch/$(ARCH)/lib/lib.a
 750 else
 751 PLATFORM_LIBGCC := -L $(shell dirname `$(CC) $(c_flags) -print-libgcc-file-name`) -lgcc
 752 endif
 753 PLATFORM_LIBS += $(PLATFORM_LIBGCC)
 754
 755 ifdef CONFIG_CC_COVERAGE
 756 KBUILD_CFLAGS += --coverage
 757 PLATFORM_LIBGCC += -lgcov
 758 endif
 759
 760 export PLATFORM_LIBS
 761 export PLATFORM_LIBGCC
 762
 763 # Special flags for CPP when processing the linker script.
 764 # Pass the version down so we can handle backwards compatibility
 765 # on the fly.
 766 LDPPFLAGS += \
 767         -include $(srctree)/include/u-boot/u-boot.lds.h \
 768         -DCPUDIR=$(CPUDIR) \
 769         $(shell $(LD) --version | \
 770           sed -ne 's/GNU ld version \([0-9][0-9]*\)\.\([0-9][0-9]*\).*/-DLD_MAJOR=\1 -DLD_MINOR=\2/p')
 771
 772 #########################################################################
 773 #########################################################################
 774
 775 ifneq ($(CONFIG_BOARD_SIZE_LIMIT),)
 776 BOARD_SIZE_CHECK = \
 777         @actual=`wc -c $@ | awk '{print $$1}'`; \
 778         limit=`printf "%d" $(CONFIG_BOARD_SIZE_LIMIT)`; \
 779         if test $$actual -gt $$limit; then \
 780                 echo "$@ exceeds file size limit:" >&2 ; \
 781                 echo "  limit:  $$limit bytes" >&2 ; \
 782                 echo "  actual: $$actual bytes" >&2 ; \
 783                 echo "  excess: $$((actual - limit)) bytes" >&2; \
 784                 exit 1; \
 785         fi
 786 else
 787 BOARD_SIZE_CHECK =
 788 endif
 789
 790 # Statically apply RELA-style relocations (currently arm64 only)
 791 # This is useful for arm64 where static relocation needs to be performed on
 792 # the raw binary, but certain simulators only accept an ELF file (but don't
 793 # do the relocation).
 794 ifneq ($(CONFIG_STATIC_RELA),)
 795 # $(1) is u-boot ELF, $(2) is u-boot bin, $(3) is text base
 796 DO_STATIC_RELA = \
 797         start=$$($(NM) $(1) | grep __rel_dyn_start | cut -f 1 -d ' '); \
 798         end=$$($(NM) $(1) | grep __rel_dyn_end | cut -f 1 -d ' '); \
 799         tools/relocate-rela $(2) $(3) $$start $$end
 800 else
 801 DO_STATIC_RELA =
 802 endif
 803
 804 # Always append ALL so that arch config.mk's can add custom ones
 805 ALL-y += u-boot.srec u-boot.bin u-boot.sym System.map binary_size_check
 806
 807 ALL-$(CONFIG_ONENAND_U_BOOT) += u-boot-onenand.bin
 808 ifeq ($(CONFIG_SPL_FSL_PBL),y)
 809 ALL-$(CONFIG_RAMBOOT_PBL) += u-boot-with-spl-pbl.bin
 810 else
 811 ifneq ($(CONFIG_SECURE_BOOT), y)
 812 # For Secure Boot The Image needs to be signed and Header must also
 813 # be included. So The image has to be built explicitly
 814 ALL-$(CONFIG_RAMBOOT_PBL) += u-boot.pbl
 815 endif
 816 endif
 817 ALL-$(CONFIG_SPL) += spl/u-boot-spl.bin
 818 ifeq ($(CONFIG_MX6)$(CONFIG_SECURE_BOOT), yy)
 819 ALL-$(CONFIG_SPL_FRAMEWORK) += u-boot-ivt.img
 820 else
 821 ifeq ($(CONFIG_MX7)$(CONFIG_SECURE_BOOT), yy)
 822 ALL-$(CONFIG_SPL_FRAMEWORK) += u-boot-ivt.img
 823 else
 824 ALL-$(CONFIG_SPL_FRAMEWORK) += u-boot.img
 825 endif
 826 endif
 827 ALL-$(CONFIG_TPL) += tpl/u-boot-tpl.bin
 828 ALL-$(CONFIG_OF_SEPARATE) += u-boot.dtb
 829 ifeq ($(CONFIG_SPL_FRAMEWORK),y)
 830 ALL-$(CONFIG_OF_SEPARATE) += u-boot-dtb.img
 831 endif
 832 ALL-$(CONFIG_OF_HOSTFILE) += u-boot.dtb
 833 ifneq ($(CONFIG_SPL_TARGET),)
 834 ALL-$(CONFIG_SPL) += $(CONFIG_SPL_TARGET:"%"=%)
 835 endif
 836 ALL-$(CONFIG_REMAKE_ELF) += u-boot.elf
 837 ALL-$(CONFIG_EFI_APP) += u-boot-app.efi
 838 ALL-$(CONFIG_EFI_STUB) += u-boot-payload.efi
 839
 840 ifneq ($(BUILD_ROM)$(CONFIG_BUILD_ROM),)
 841 ALL-$(CONFIG_X86_RESET_VECTOR) += u-boot.rom
 842 endif
 843
 844 # Build a combined spl + u-boot image for sunxi
 845 ifeq ($(CONFIG_ARCH_SUNXI)$(CONFIG_SPL),yy)
 846 ALL-y += u-boot-sunxi-with-spl.bin
 847 endif
 848
 849 # enable combined SPL/u-boot/dtb rules for tegra
 850 ifeq ($(CONFIG_TEGRA)$(CONFIG_SPL),yy)
 851 ALL-y += u-boot-tegra.bin u-boot-nodtb-tegra.bin
 852 ALL-$(CONFIG_OF_SEPARATE) += u-boot-dtb-tegra.bin
 853 endif
 854
 855 ALL-$(CONFIG_ARCH_MEDIATEK) += u-boot-mtk.bin
 856
 857 # Add optional build target if defined in board/cpu/soc headers
 858 ifneq ($(CONFIG_BUILD_TARGET),)
 859 ALL-y += $(CONFIG_BUILD_TARGET:"%"=%)
 860 endif
 861
 862 ifneq ($(CONFIG_SYS_INIT_SP_BSS_OFFSET),)
 863 ALL-y += init_sp_bss_offset_check
 864 endif
 865
 866 ifeq ($(CONFIG_MPC85xx)$(CONFIG_OF_SEPARATE),yy)
 867 ALL-y += u-boot-with-dtb.bin
 868 endif
 869
 870 LDFLAGS_u-boot += $(LDFLAGS_FINAL)
 871
 872 # Avoid 'Not enough room for program headers' error on binutils 2.28 onwards.
 873 LDFLAGS_u-boot += $(call ld-option, --no-dynamic-linker)
 874
 875 ifeq ($(CONFIG_ARC)$(CONFIG_NIOS2)$(CONFIG_X86)$(CONFIG_XTENSA),)
 876 LDFLAGS_u-boot += -Ttext $(CONFIG_SYS_TEXT_BASE)
 877 endif
 878
 879 # Normally we fill empty space with 0xff
 880 quiet_cmd_objcopy = OBJCOPY $@
 881 cmd_objcopy = $(OBJCOPY) --gap-fill=0xff $(OBJCOPYFLAGS) \
 882         $(OBJCOPYFLAGS_$(@F)) $< $@
 883
 884 # Provide a version which does not do this, for use by EFI
 885 quiet_cmd_zobjcopy = OBJCOPY $@
 886 cmd_zobjcopy = $(OBJCOPY) $(OBJCOPYFLAGS) $(OBJCOPYFLAGS_$(@F)) $< $@
 887
 888 quiet_cmd_efipayload = OBJCOPY $@
 889 cmd_efipayload = $(OBJCOPY) -I binary -O $(EFIPAYLOAD_BFDTARGET) -B $(EFIPAYLOAD_BFDARCH) $< $@
 890
 891 MKIMAGEOUTPUT ?= /dev/null
 892
 893 quiet_cmd_mkimage = MKIMAGE $@
 894 cmd_mkimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -d $< $@ \
 895         >$(MKIMAGEOUTPUT) $(if $(KBUILD_VERBOSE:0=), && cat $(MKIMAGEOUTPUT))
 896
 897 quiet_cmd_mkfitimage = MKIMAGE $@
 898 cmd_mkfitimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -f $(U_BOOT_ITS) -E $@ \
 899         >$(MKIMAGEOUTPUT) $(if $(KBUILD_VERBOSE:0=), && cat $(MKIMAGEOUTPUT))
 900
 901 quiet_cmd_cat = CAT     $@
 902 cmd_cat = cat $(filter-out $(PHONY), $^) > $@
 903
 904 append = cat $(filter-out $< $(PHONY), $^) >> $@
 905
 906 quiet_cmd_pad_cat = CAT     $@
 907 cmd_pad_cat = $(cmd_objcopy) && $(append) || rm -f $@
 908
 909 cfg: u-boot.cfg
 910
 911 quiet_cmd_cfgcheck = CFGCHK  $2
 912 cmd_cfgcheck = $(srctree)/scripts/check-config.sh $2 \
 913                 $(srctree)/scripts/config_whitelist.txt $(srctree)
 914
 915 all:            $(ALL-y) cfg
 916 ifeq ($(CONFIG_DM_I2C_COMPAT)$(CONFIG_SANDBOX),y)
 917         @echo "===================== WARNING ======================"
 918         @echo "This board uses CONFIG_DM_I2C_COMPAT. Please remove"
 919         @echo "(possibly in a subsequent patch in your series)"
 920         @echo "before sending patches to the mailing list."
 921         @echo "===================================================="
 922 endif
 923 ifeq ($(CONFIG_MMC),y)
 924 ifneq ($(CONFIG_DM_MMC)$(CONFIG_OF_CONTROL)$(CONFIG_BLK),yyy)
 925         @echo "===================== WARNING ======================"
 926         @echo "This board does not use CONFIG_DM_MMC. Please update"
 927         @echo "the board to use CONFIG_DM_MMC before the v2019.04 release."
 928         @echo "Failure to update by the deadline may result in board removal."
 929         @echo "See doc/driver-model/MIGRATION.txt for more info."
 930         @echo "===================================================="
 931 endif
 932 endif
 933 ifeq ($(CONFIG_USB),y)
 934 ifneq ($(CONFIG_DM_USB)$(CONFIG_OF_CONTROL)$(CONFIG_BLK),yyy)
 935         @echo "===================== WARNING ======================"
 936         @echo "This board does not use CONFIG_DM_USB. Please update"
 937         @echo "the board to use CONFIG_DM_USB before the v2019.07 release."
 938         @echo "Failure to update by the deadline may result in board removal."
 939         @echo "See doc/driver-model/MIGRATION.txt for more info."
 940         @echo "===================================================="
 941 endif
 942 endif
 943 ifeq ($(CONFIG_LIBATA)$(CONFIG_DM_SCSI)$(CONFIG_MVSATA_IDE),y)
 944         @echo "===================== WARNING ======================"
 945         @echo "This board does not use CONFIG_DM_SCSI. Please update"
 946         @echo "the storage controller to use CONFIG_DM_SCSI before the v2019.07 release."
 947         @echo "Failure to update by the deadline may result in board removal."
 948         @echo "See doc/driver-model/MIGRATION.txt for more info."
 949         @echo "===================================================="
 950 endif
 951 ifeq ($(CONFIG_OF_EMBED),y)
 952         @echo "===================== WARNING ======================"
 953         @echo "CONFIG_OF_EMBED is enabled. This option should only"
 954         @echo "be used for debugging purposes. Please use"
 955         @echo "CONFIG_OF_SEPARATE for boards in mainline."
 956         @echo "See doc/README.fdt-control for more info."
 957         @echo "===================================================="
 958 endif
 959         @# Check that this build does not use CONFIG options that we do not
 960         @# know about unless they are in Kconfig. All the existing CONFIG
 961         @# options are whitelisted, so new ones should not be added.
 962         $(call cmd,cfgcheck,u-boot.cfg)
 963
 964 PHONY += dtbs
 965 dtbs: dts/dt.dtb
 966         @:
 967 dts/dt.dtb: u-boot
 968         $(Q)$(MAKE) $(build)=dts dtbs
 969
 970 quiet_cmd_copy = COPY    $@
 971       cmd_copy = cp $< $@
 972
 973 ifeq ($(CONFIG_MULTI_DTB_FIT),y)
 974
 975 fit-dtb.blob: dts/dt.dtb FORCE
 976         $(call if_changed,mkimage)
 977
 978 MKIMAGEFLAGS_fit-dtb.blob = -f auto -A $(ARCH) -T firmware -C none -O u-boot \
 979         -a 0 -e 0 -E \
 980         $(patsubst %,-b arch/$(ARCH)/dts/%.dtb,$(subst ",,$(CONFIG_OF_LIST))) -d /dev/null
 981
 982 u-boot-fit-dtb.bin: u-boot-nodtb.bin fit-dtb.blob
 983         $(call if_changed,cat)
 984
 985 u-boot.bin: u-boot-fit-dtb.bin FORCE
 986         $(call if_changed,copy)
 987 else ifeq ($(CONFIG_OF_SEPARATE),y)
 988 u-boot-dtb.bin: u-boot-nodtb.bin dts/dt.dtb FORCE
 989         $(call if_changed,cat)
 990
 991 u-boot.bin: u-boot-dtb.bin FORCE
 992         $(call if_changed,copy)
 993 else
 994 u-boot.bin: u-boot-nodtb.bin FORCE
 995         $(call if_changed,copy)
 996 endif
 997
 998 %.imx: %.bin
 999         $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@
1000
1001 %.vyb: %.imx
1002         $(Q)$(MAKE) $(build)=arch/arm/cpu/armv7/vf610 $@
1003
1004 quiet_cmd_copy = COPY    $@
1005       cmd_copy = cp $< $@
1006
1007 u-boot.dtb: dts/dt.dtb
1008         $(call cmd,copy)
1009
1010 OBJCOPYFLAGS_u-boot.hex := -O ihex
1011
1012 OBJCOPYFLAGS_u-boot.srec := -O srec
1013
1014 u-boot.hex u-boot.srec: u-boot FORCE
1015         $(call if_changed,objcopy)
1016
1017 OBJCOPYFLAGS_u-boot-elf.srec := $(OBJCOPYFLAGS_u-boot.srec)
1018
1019 u-boot-elf.srec: u-boot.elf FORCE
1020         $(call if_changed,objcopy)
1021
1022 OBJCOPYFLAGS_u-boot-spl.srec = $(OBJCOPYFLAGS_u-boot.srec)
1023
1024 spl/u-boot-spl.srec: spl/u-boot-spl FORCE
1025         $(call if_changed,objcopy)
1026
1027 OBJCOPYFLAGS_u-boot-nodtb.bin := -O binary \
1028                 $(if $(CONFIG_X86_16BIT_INIT),-R .start16 -R .resetvec) \
1029                 $(if $(CONFIG_MPC85XX_HAVE_RESET_VECTOR),-R .bootpg -R .resetvec)
1030
1031 OBJCOPYFLAGS_u-boot-spl.hex = $(OBJCOPYFLAGS_u-boot.hex)
1032
1033 spl/u-boot-spl.hex: spl/u-boot-spl FORCE
1034         $(call if_changed,objcopy)
1035
1036 binary_size_check: u-boot-nodtb.bin FORCE
1037         @file_size=$(shell wc -c u-boot-nodtb.bin | awk '{print $$1}') ; \
1038         map_size=$(shell cat u-boot.map | \
1039                 awk '/_image_copy_start/ {start = $$1} /_image_binary_end/ {end = $$1} END {if (start != "" && end != "") print "ibase=16; " toupper(end) " - " toupper(start)}' \
1040                 | sed 's/0X//g' \
1041                 | bc); \
1042         if [ "" != "$$map_size" ]; then \
1043                 if test $$map_size -ne $$file_size; then \
1044                         echo "u-boot.map shows a binary size of $$map_size" >&2 ; \
1045                         echo "  but u-boot-nodtb.bin shows $$file_size" >&2 ; \
1046                         exit 1; \
1047                 fi \
1048         fi
1049
1050 ifneq ($(CONFIG_SYS_INIT_SP_BSS_OFFSET),)
1051 ifneq ($(CONFIG_SYS_MALLOC_F_LEN),)
1052 subtract_sys_malloc_f_len = space=$$(($${space} - $(CONFIG_SYS_MALLOC_F_LEN)))
1053 else
1054 subtract_sys_malloc_f_len = true
1055 endif
1056 # The 1/4 margin below is somewhat arbitrary. The likely initial SP usage is
1057 # so low that the DTB could probably use 90%+ of the available space, for
1058 # current values of CONFIG_SYS_INIT_SP_BSS_OFFSET at least. However, let's be
1059 # safe for now and tweak this later if space becomes tight.
1060 # A rejected alternative would be to check that some absolute minimum stack
1061 # space was available. However, since CONFIG_SYS_INIT_SP_BSS_OFFSET is
1062 # deliberately build-specific, to take account of build-to-build stack usage
1063 # differences due to different feature sets, there is no common absolute value
1064 # to check against.
1065 init_sp_bss_offset_check: u-boot.dtb FORCE
1066         @dtb_size=$(shell wc -c u-boot.dtb | awk '{print $$1}') ; \
1067         space=$(CONFIG_SYS_INIT_SP_BSS_OFFSET) ; \
1068         $(subtract_sys_malloc_f_len) ; \
1069         quarter_space=$$(($${space} / 4)) ; \
1070         if [ $${dtb_size} -gt $${quarter_space} ]; then \
1071                 echo "u-boot.dtb is larger than 1 quarter of " >&2 ; \
1072                 echo "(CONFIG_SYS_INIT_SP_BSS_OFFSET - CONFIG_SYS_MALLOC_F_LEN)" >&2 ; \
1073                 exit 1 ; \
1074         fi
1075 endif
1076
1077 u-boot-nodtb.bin: u-boot FORCE
1078         $(call if_changed,objcopy)
1079         $(call DO_STATIC_RELA,$<,$@,$(CONFIG_SYS_TEXT_BASE))
1080         $(BOARD_SIZE_CHECK)
1081
1082 u-boot.ldr:     u-boot
1083                 $(CREATE_LDR_ENV)
1084                 $(LDR) -T $(CONFIG_CPU) -c $@ $< $(LDR_FLAGS)
1085                 $(BOARD_SIZE_CHECK)
1086
1087 # binman
1088 # ---------------------------------------------------------------------------
1089 # Use 'make BINMAN_DEBUG=1' to enable debugging
1090 quiet_cmd_binman = BINMAN  $@
1091 cmd_binman = $(srctree)/tools/binman/binman -u -d u-boot.dtb -O . -m \
1092                 -I . -I $(srctree) -I $(srctree)/board/$(BOARDDIR) \
1093                 $(if $(BINMAN_DEBUG),-D) $(BINMAN_$(@F)) $<
1094
1095 OBJCOPYFLAGS_u-boot.ldr.hex := -I binary -O ihex
1096
1097 OBJCOPYFLAGS_u-boot.ldr.srec := -I binary -O srec
1098
1099 u-boot.ldr.hex u-boot.ldr.srec: u-boot.ldr FORCE
1100         $(call if_changed,objcopy)
1101
1102 #
1103 # U-Boot entry point, needed for booting of full-blown U-Boot
1104 # from the SPL U-Boot version.
1105 #
1106 ifndef CONFIG_SYS_UBOOT_START
1107 CONFIG_SYS_UBOOT_START := 0
1108 endif
1109
1110 # Boards with more complex image requirments can provide an .its source file
1111 # or a generator script
1112 ifneq ($(CONFIG_SPL_FIT_SOURCE),"")
1113 U_BOOT_ITS = $(subst ",,$(CONFIG_SPL_FIT_SOURCE))
1114 else
1115 ifneq ($(CONFIG_SPL_FIT_GENERATOR),"")
1116 U_BOOT_ITS := u-boot.its
1117 ifeq ($(CONFIG_SPL_FIT_GENERATOR),"arch/arm/mach-rockchip/make_fit_atf.py")
1118 U_BOOT_ITS_DEPS += u-boot
1119 endif
1120 $(U_BOOT_ITS): $(U_BOOT_ITS_DEPS) FORCE
1121         $(srctree)/$(CONFIG_SPL_FIT_GENERATOR) \
1122         $(patsubst %,arch/$(ARCH)/dts/%.dtb,$(subst ",,$(CONFIG_OF_LIST))) > $@
1123 endif
1124 endif
1125
1126 ifdef CONFIG_SPL_LOAD_FIT
1127 MKIMAGEFLAGS_u-boot.img = -f auto -A $(ARCH) -T firmware -C none -O u-boot \
1128         -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \
1129         -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board" -E \
1130         $(patsubst %,-b arch/$(ARCH)/dts/%.dtb,$(subst ",,$(CONFIG_OF_LIST)))
1131 else
1132 MKIMAGEFLAGS_u-boot.img = -A $(ARCH) -T firmware -C none -O u-boot \
1133         -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \
1134         -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board"
1135 MKIMAGEFLAGS_u-boot-ivt.img = -A $(ARCH) -T firmware_ivt -C none -O u-boot \
1136         -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \
1137         -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board"
1138 u-boot-ivt.img: MKIMAGEOUTPUT = u-boot-ivt.img.log
1139 CLEAN_FILES += u-boot-ivt.img.log u-boot-dtb.imx.log SPL.log u-boot.imx.log
1140 endif
1141
1142 MKIMAGEFLAGS_u-boot-dtb.img = $(MKIMAGEFLAGS_u-boot.img)
1143
1144 MKIMAGEFLAGS_u-boot.kwb = -n $(srctree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%) \
1145         -T kwbimage -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE)
1146
1147 MKIMAGEFLAGS_u-boot-spl.kwb = -n $(srctree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%) \
1148         -T kwbimage -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE) \
1149         $(if $(KEYDIR),-k $(KEYDIR))
1150
1151 MKIMAGEFLAGS_u-boot.pbl = -n $(srctree)/$(CONFIG_SYS_FSL_PBL_RCW:"%"=%) \
1152                 -R $(srctree)/$(CONFIG_SYS_FSL_PBL_PBI:"%"=%) -T pblimage
1153
1154 u-boot-dtb.img u-boot.img u-boot.kwb u-boot.pbl u-boot-ivt.img: \
1155                 $(if $(CONFIG_SPL_LOAD_FIT),u-boot-nodtb.bin dts/dt.dtb,u-boot.bin) FORCE
1156         $(call if_changed,mkimage)
1157
1158 u-boot.itb: u-boot-nodtb.bin dts/dt.dtb $(U_BOOT_ITS) FORCE
1159         $(call if_changed,mkfitimage)
1160         $(BOARD_SIZE_CHECK)
1161
1162 u-boot-spl.kwb: u-boot.img spl/u-boot-spl.bin FORCE
1163         $(call if_changed,mkimage)
1164
1165 u-boot.sha1:    u-boot.bin
1166                 tools/ubsha1 u-boot.bin
1167
1168 u-boot.dis:     u-boot
1169                 $(OBJDUMP) -d $< > $@
1170
1171 ifneq ($(CONFIG_SPL_PAYLOAD),)
1172 SPL_PAYLOAD := $(CONFIG_SPL_PAYLOAD:"%"=%)
1173 else
1174 SPL_PAYLOAD := u-boot.bin
1175 endif
1176
1177 OBJCOPYFLAGS_u-boot-with-spl.bin = -I binary -O binary \
1178                                    --pad-to=$(CONFIG_SPL_PAD_TO)
1179 u-boot-with-spl.bin: spl/u-boot-spl.bin $(SPL_PAYLOAD) FORCE
1180         $(call if_changed,pad_cat)
1181
1182 ifeq ($(CONFIG_ARCH_LPC32XX)$(CONFIG_SPL),yy)
1183 MKIMAGEFLAGS_lpc32xx-spl.img = -T lpc32xximage -a $(CONFIG_SPL_TEXT_BASE)
1184
1185 lpc32xx-spl.img: spl/u-boot-spl.bin FORCE
1186         $(call if_changed,mkimage)
1187
1188 OBJCOPYFLAGS_lpc32xx-boot-0.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO)
1189
1190 lpc32xx-boot-0.bin: lpc32xx-spl.img FORCE
1191         $(call if_changed,objcopy)
1192
1193 OBJCOPYFLAGS_lpc32xx-boot-1.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO)
1194
1195 lpc32xx-boot-1.bin: lpc32xx-spl.img FORCE
1196         $(call if_changed,objcopy)
1197
1198 lpc32xx-full.bin: lpc32xx-boot-0.bin lpc32xx-boot-1.bin u-boot.img FORCE
1199         $(call if_changed,cat)
1200
1201 CLEAN_FILES += lpc32xx-*
1202 endif
1203
1204 OBJCOPYFLAGS_u-boot-with-tpl.bin = -I binary -O binary \
1205                                    --pad-to=$(CONFIG_TPL_PAD_TO)
1206 tpl/u-boot-with-tpl.bin: tpl/u-boot-tpl.bin u-boot.bin FORCE
1207         $(call if_changed,pad_cat)
1208
1209 SPL: spl/u-boot-spl.bin FORCE
1210         $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@
1211
1212 u-boot-with-spl.imx u-boot-with-nand-spl.imx: SPL u-boot.bin FORCE
1213         $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@
1214
1215 MKIMAGEFLAGS_u-boot.ubl = -n $(UBL_CONFIG) -T ublimage -e $(CONFIG_SYS_TEXT_BASE)
1216
1217 u-boot.ubl: u-boot-with-spl.bin FORCE
1218         $(call if_changed,mkimage)
1219
1220 MKIMAGEFLAGS_u-boot-spl.ais = -s -n $(if $(CONFIG_AIS_CONFIG_FILE), \
1221         $(srctree)/$(CONFIG_AIS_CONFIG_FILE:"%"=%),"/dev/null") \
1222         -T aisimage -e $(CONFIG_SPL_TEXT_BASE)
1223 spl/u-boot-spl.ais: spl/u-boot-spl.bin FORCE
1224         $(call if_changed,mkimage)
1225
1226 OBJCOPYFLAGS_u-boot.ais = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO)
1227 u-boot.ais: spl/u-boot-spl.ais u-boot.img FORCE
1228         $(call if_changed,pad_cat)
1229
1230 u-boot-signed.sb: u-boot.bin spl/u-boot-spl.bin
1231         $(Q)$(MAKE) $(build)=arch/arm/cpu/arm926ejs/mxs u-boot-signed.sb
1232 u-boot.sb: u-boot.bin spl/u-boot-spl.bin
1233         $(Q)$(MAKE) $(build)=arch/arm/cpu/arm926ejs/mxs u-boot.sb
1234
1235 # On x600 (SPEAr600) U-Boot is appended to U-Boot SPL.
1236 # Both images are created using mkimage (crc etc), so that the ROM
1237 # bootloader can check its integrity. Padding needs to be done to the
1238 # SPL image (with mkimage header) and not the binary. Otherwise the resulting image
1239 # which is loaded/copied by the ROM bootloader to SRAM doesn't fit.
1240 # The resulting image containing both U-Boot images is called u-boot.spr
1241 MKIMAGEFLAGS_u-boot-spl.img = -A $(ARCH) -T firmware -C none \
1242         -a $(CONFIG_SPL_TEXT_BASE) -e $(CONFIG_SPL_TEXT_BASE) -n XLOADER
1243 spl/u-boot-spl.img: spl/u-boot-spl.bin FORCE
1244         $(call if_changed,mkimage)
1245
1246 OBJCOPYFLAGS_u-boot.spr = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) \
1247                           --gap-fill=0xff
1248 u-boot.spr: spl/u-boot-spl.img u-boot.img FORCE
1249         $(call if_changed,pad_cat)
1250
1251 ifneq ($(CONFIG_ARCH_SOCFPGA),)
1252 quiet_cmd_socboot = SOCBOOT $@
1253 cmd_socboot = cat       spl/u-boot-spl.sfp spl/u-boot-spl.sfp   \
1254                         spl/u-boot-spl.sfp spl/u-boot-spl.sfp   \
1255                         u-boot.img > $@ || rm -f $@
1256 u-boot-with-spl.sfp: spl/u-boot-spl.sfp u-boot.img FORCE
1257         $(call if_changed,socboot)
1258 endif
1259
1260 ifeq ($(CONFIG_MPC85xx)$(CONFIG_OF_SEPARATE),yy)
1261 u-boot-with-dtb.bin: u-boot.bin u-boot.dtb \
1262         $(if $(CONFIG_MPC85XX_HAVE_RESET_VECTOR), u-boot-br.bin) FORCE
1263         $(call if_changed,binman)
1264
1265 ifeq ($(CONFIG_MPC85XX_HAVE_RESET_VECTOR),y)
1266 OBJCOPYFLAGS_u-boot-br.bin := -O binary -j .bootpg -j .resetvec
1267 u-boot-br.bin: u-boot FORCE
1268         $(call if_changed,objcopy)
1269 endif
1270 endif
1271
1272 # x86 uses a large ROM. We fill it with 0xff, put the 16-bit stuff (including
1273 # reset vector) at the top, Intel ME descriptor at the bottom, and U-Boot in
1274 # the middle. This is handled by binman based on an image description in the
1275 # board's device tree.
1276 ifneq ($(CONFIG_X86_RESET_VECTOR),)
1277 rom: u-boot.rom FORCE
1278
1279 refcode.bin: $(srctree)/board/$(BOARDDIR)/refcode.bin FORCE
1280         $(call if_changed,copy)
1281
1282 quiet_cmd_ldr = LD      $@
1283 cmd_ldr = $(LD) $(LDFLAGS_$(@F)) \
1284                $(filter-out FORCE,$^) -o $@
1285
1286 u-boot.rom: u-boot-x86-16bit.bin u-boot.bin \
1287                 $(if $(CONFIG_SPL_X86_16BIT_INIT),spl/u-boot-spl.bin) \
1288                 $(if $(CONFIG_HAVE_REFCODE),refcode.bin) FORCE
1289         $(call if_changed,binman)
1290
1291 OBJCOPYFLAGS_u-boot-x86-16bit.bin := -O binary -j .start16 -j .resetvec
1292 u-boot-x86-16bit.bin: u-boot FORCE
1293         $(call if_changed,objcopy)
1294 endif
1295
1296 ifneq ($(CONFIG_ARCH_SUNXI),)
1297 ifeq ($(CONFIG_ARM64),)
1298 u-boot-sunxi-with-spl.bin: spl/sunxi-spl.bin u-boot.img u-boot.dtb FORCE
1299         $(call if_changed,binman)
1300 else
1301 u-boot-sunxi-with-spl.bin: spl/sunxi-spl.bin u-boot.itb FORCE
1302         $(call if_changed,cat)
1303 endif
1304 endif
1305
1306 ifneq ($(CONFIG_TEGRA),)
1307 ifneq ($(CONFIG_BINMAN),)
1308 # Makes u-boot-dtb-tegra.bin u-boot-tegra.bin u-boot-nodtb-tegra.bin
1309 %-dtb-tegra.bin %-tegra.bin %-nodtb-tegra.bin: \
1310                 spl/%-spl %.bin FORCE
1311         $(call if_changed,binman)
1312 else
1313 OBJCOPYFLAGS_u-boot-nodtb-tegra.bin = -O binary --pad-to=$(CONFIG_SYS_TEXT_BASE)
1314 u-boot-nodtb-tegra.bin: spl/u-boot-spl u-boot-nodtb.bin FORCE
1315         $(call if_changed,pad_cat)
1316
1317 OBJCOPYFLAGS_u-boot-tegra.bin = -O binary --pad-to=$(CONFIG_SYS_TEXT_BASE)
1318 u-boot-tegra.bin: spl/u-boot-spl u-boot.bin FORCE
1319         $(call if_changed,pad_cat)
1320
1321 u-boot-dtb-tegra.bin: u-boot-tegra.bin FORCE
1322         $(call if_changed,copy)
1323 endif  # binman
1324 endif
1325
1326 OBJCOPYFLAGS_u-boot-app.efi := $(OBJCOPYFLAGS_EFI)
1327 u-boot-app.efi: u-boot FORCE
1328         $(call if_changed,zobjcopy)
1329
1330 u-boot.bin.o: u-boot.bin FORCE
1331         $(call if_changed,efipayload)
1332
1333 u-boot-payload.lds: $(LDSCRIPT_EFI) FORCE
1334         $(call if_changed_dep,cpp_lds)
1335
1336 # Rule to link the EFI payload which contains a stub and a U-Boot binary
1337 quiet_cmd_u-boot_payload ?= LD      $@
1338       cmd_u-boot_payload ?= $(LD) $(LDFLAGS_EFI_PAYLOAD) -o $@ \
1339       -T u-boot-payload.lds arch/x86/cpu/call32.o \
1340       lib/efi/efi.o lib/efi/efi_stub.o u-boot.bin.o \
1341       $(addprefix arch/$(ARCH)/lib/,$(EFISTUB))
1342
1343 u-boot-payload: u-boot.bin.o u-boot-payload.lds FORCE
1344         $(call if_changed,u-boot_payload)
1345
1346 OBJCOPYFLAGS_u-boot-payload.efi := $(OBJCOPYFLAGS_EFI)
1347 u-boot-payload.efi: u-boot-payload FORCE
1348         $(call if_changed,zobjcopy)
1349
1350 u-boot-img.bin: spl/u-boot-spl.bin u-boot.img FORCE
1351         $(call if_changed,cat)
1352
1353 #Add a target to create boot binary having SPL binary in PBI format
1354 #concatenated with u-boot binary. It is need by PowerPC SoC having
1355 #internal SRAM <= 512KB.
1356 MKIMAGEFLAGS_u-boot-spl.pbl = -n $(srctree)/$(CONFIG_SYS_FSL_PBL_RCW:"%"=%) \
1357                 -R $(srctree)/$(CONFIG_SYS_FSL_PBL_PBI:"%"=%) -T pblimage \
1358                 -A $(ARCH) -a $(CONFIG_SPL_TEXT_BASE)
1359
1360 spl/u-boot-spl.pbl: spl/u-boot-spl.bin FORCE
1361         $(call if_changed,mkimage)
1362
1363 ifeq ($(ARCH),arm)
1364 UBOOT_BINLOAD := u-boot.img
1365 else
1366 ifeq ($(CONFIG_MPC85xx)$(CONFIG_OF_SEPARATE),yy)
1367 UBOOT_BINLOAD := u-boot-with-dtb.bin
1368 else
1369 UBOOT_BINLOAD := u-boot.bin
1370 endif
1371 endif
1372
1373 OBJCOPYFLAGS_u-boot-with-spl-pbl.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) \
1374                           --gap-fill=0xff
1375
1376 u-boot-with-spl-pbl.bin: spl/u-boot-spl.pbl $(UBOOT_BINLOAD) FORCE
1377         $(call if_changed,pad_cat)
1378
1379 # PPC4xx needs the SPL at the end of the image, since the reset vector
1380 # is located at 0xfffffffc. So we can't use the "u-boot-img.bin" target
1381 # and need to introduce a new build target with the full blown U-Boot
1382 # at the start padded up to the start of the SPL image. And then concat
1383 # the SPL image to the end.
1384
1385 OBJCOPYFLAGS_u-boot-img-spl-at-end.bin := -I binary -O binary \
1386         --pad-to=$(CONFIG_UBOOT_PAD_TO) --gap-fill=0xff
1387 u-boot-img-spl-at-end.bin: u-boot.img spl/u-boot-spl.bin FORCE
1388         $(call if_changed,pad_cat)
1389
1390 # Create a new ELF from a raw binary file.
1391 ifndef PLATFORM_ELFENTRY
1392   PLATFORM_ELFENTRY = "_start"
1393 endif
1394 quiet_cmd_u-boot-elf ?= LD      $@
1395         cmd_u-boot-elf ?= $(LD) u-boot-elf.o -o $@ \
1396         --defsym=$(PLATFORM_ELFENTRY)=$(CONFIG_SYS_TEXT_BASE) \
1397         -Ttext=$(CONFIG_SYS_TEXT_BASE)
1398 u-boot.elf: u-boot.bin
1399         $(Q)$(OBJCOPY) -I binary $(PLATFORM_ELFFLAGS) $< u-boot-elf.o
1400         $(call if_changed,u-boot-elf)
1401
1402 # MediaTek's ARM-based u-boot needs a header to contains its load address
1403 # which is parsed by the BootROM.
1404 # If the SPL build is enabled, the header will be added to the spl binary,
1405 # and the spl binary and the u-boot.img will be combined into one file.
1406 # Otherwise the header will be added to the u-boot.bin directly.
1407
1408 ifeq ($(CONFIG_SPL),y)
1409 spl/u-boot-spl-mtk.bin: spl/u-boot-spl
1410
1411 u-boot-mtk.bin: u-boot.dtb u-boot.img spl/u-boot-spl-mtk.bin FORCE
1412         $(call if_changed,binman)
1413 else
1414 MKIMAGEFLAGS_u-boot-mtk.bin = -T mtk_image \
1415         -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE) \
1416         -n "$(patsubst "%",%,$(CONFIG_MTK_BROM_HEADER_INFO))"
1417
1418 u-boot-mtk.bin: u-boot.bin FORCE
1419         $(call if_changed,mkimage)
1420 endif
1421
1422 ARCH_POSTLINK := $(wildcard $(srctree)/arch/$(ARCH)/Makefile.postlink)
1423
1424 # Rule to link u-boot
1425 # May be overridden by arch/$(ARCH)/config.mk
1426 quiet_cmd_u-boot__ ?= LD      $@
1427       cmd_u-boot__ ?= $(LD) $(LDFLAGS) $(LDFLAGS_u-boot) -o $@ \
1428       -T u-boot.lds $(u-boot-init)                             \
1429       --start-group $(u-boot-main) --end-group                 \
1430       $(PLATFORM_LIBS) -Map u-boot.map;                        \
1431       $(if $(ARCH_POSTLINK), $(MAKE) -f $(ARCH_POSTLINK) $@, true)
1432
1433 quiet_cmd_smap = GEN     common/system_map.o
1434 cmd_smap = \
1435         smap=`$(call SYSTEM_MAP,u-boot) | \
1436                 awk '$$2 ~ /[tTwW]/ {printf $$1 $$3 "\\\\000"}'` ; \
1437         $(CC) $(c_flags) -DSYSTEM_MAP="\"$${smap}\"" \
1438                 -c $(srctree)/common/system_map.c -o common/system_map.o
1439
1440 u-boot: $(u-boot-init) $(u-boot-main) u-boot.lds FORCE
1441         +$(call if_changed,u-boot__)
1442 ifeq ($(CONFIG_KALLSYMS),y)
1443         $(call cmd,smap)
1444         $(call cmd,u-boot__) common/system_map.o
1445 endif
1446
1447 ifeq ($(CONFIG_RISCV),y)
1448         @tools/prelink-riscv $@ 0
1449 endif
1450
1451 quiet_cmd_sym ?= SYM     $@
1452       cmd_sym ?= $(OBJDUMP) -t $< > $@
1453 u-boot.sym: u-boot FORCE
1454         $(call if_changed,sym)
1455
1456 # The actual objects are generated when descending,
1457 # make sure no implicit rule kicks in
1458 $(sort $(u-boot-init) $(u-boot-main)): $(u-boot-dirs) ;
1459
1460 # Handle descending into subdirectories listed in $(vmlinux-dirs)
1461 # Preset locale variables to speed up the build process. Limit locale
1462 # tweaks to this spot to avoid wrong language settings when running
1463 # make menuconfig etc.
1464 # Error messages still appears in the original language
1465
1466 PHONY += $(u-boot-dirs)
1467 $(u-boot-dirs): prepare scripts
1468         $(Q)$(MAKE) $(build)=$@
1469
1470 tools: prepare
1471 # The "tools" are needed early
1472 $(filter-out tools, $(u-boot-dirs)): tools
1473 # The "examples" conditionally depend on U-Boot (say, when USE_PRIVATE_LIBGCC
1474 # is "yes"), so compile examples after U-Boot is compiled.
1475 examples: $(filter-out examples, $(u-boot-dirs))
1476
1477 define filechk_uboot.release
1478         echo "$(UBOOTVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))"
1479 endef
1480
1481 # Store (new) UBOOTRELEASE string in include/config/uboot.release
1482 include/config/uboot.release: include/config/auto.conf FORCE
1483         $(call filechk,uboot.release)
1484
1485
1486 # Things we need to do before we recursively start building the kernel
1487 # or the modules are listed in "prepare".
1488 # A multi level approach is used. prepareN is processed before prepareN-1.
1489 # archprepare is used in arch Makefiles and when processed asm symlink,
1490 # version.h and scripts_basic is processed / created.
1491
1492 # Listed in dependency order
1493 PHONY += prepare archprepare prepare0 prepare1 prepare2 prepare3
1494
1495 # prepare3 is used to check if we are building in a separate output directory,
1496 # and if so do:
1497 # 1) Check that make has not been executed in the kernel src $(srctree)
1498 prepare3: include/config/uboot.release
1499 ifneq ($(KBUILD_SRC),)
1500         @$(kecho) '  Using $(srctree) as source for U-Boot'
1501         $(Q)if [ -f $(srctree)/.config -o -d $(srctree)/include/config ]; then \
1502                 echo >&2 "  $(srctree) is not clean, please run 'make mrproper'"; \
1503                 echo >&2 "  in the '$(srctree)' directory.";\
1504                 /bin/false; \
1505         fi;
1506 endif
1507
1508 # prepare2 creates a makefile if using a separate output directory
1509 prepare2: prepare3 outputmakefile
1510
1511 prepare1: prepare2 $(version_h) $(timestamp_h) \
1512                    include/config/auto.conf
1513 ifeq ($(wildcard $(LDSCRIPT)),)
1514         @echo >&2 "  Could not find linker script."
1515         @/bin/false
1516 endif
1517
1518 ifeq ($(CONFIG_USE_DEFAULT_ENV_FILE),y)
1519 prepare1: $(defaultenv_h)
1520 endif
1521
1522 archprepare: prepare1 scripts_basic
1523
1524 prepare0: archprepare FORCE
1525         $(Q)$(MAKE) $(build)=.
1526
1527 # All the preparing..
1528 prepare: prepare0
1529
1530 # Generate some files
1531 # ---------------------------------------------------------------------------
1532
1533 define filechk_version.h
1534         (echo \#define PLAIN_VERSION \"$(UBOOTRELEASE)\"; \
1535         echo \#define U_BOOT_VERSION \"U-Boot \" PLAIN_VERSION; \
1536         echo \#define CC_VERSION_STRING \"$$(LC_ALL=C $(CC) --version | head -n 1)\"; \
1537         echo \#define LD_VERSION_STRING \"$$(LC_ALL=C $(LD) --version | head -n 1)\"; )
1538 endef
1539
1540 # The SOURCE_DATE_EPOCH mechanism requires a date that behaves like GNU date.
1541 # The BSD date on the other hand behaves different and would produce errors
1542 # with the misused '-d' switch.  Respect that and search a working date with
1543 # well known pre- and suffixes for the GNU variant of date.
1544 define filechk_timestamp.h
1545         (if test -n "$${SOURCE_DATE_EPOCH}"; then \
1546                 SOURCE_DATE="@$${SOURCE_DATE_EPOCH}"; \
1547                 DATE=""; \
1548                 for date in gdate date.gnu date; do \
1549                         $${date} -u -d "$${SOURCE_DATE}" >/dev/null 2>&1 && DATE="$${date}"; \
1550                 done; \
1551                 if test -n "$${DATE}"; then \
1552                         LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_DATE "%b %d %C%y"'; \
1553                         LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_TIME "%T"'; \
1554                         LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_TZ "%z"'; \
1555                         LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_DMI_DATE "%m/%d/%Y"'; \
1556                         LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_BUILD_DATE 0x%Y%m%d'; \
1557                 else \
1558                         return 42; \
1559                 fi; \
1560         else \
1561                 LC_ALL=C date +'#define U_BOOT_DATE "%b %d %C%y"'; \
1562                 LC_ALL=C date +'#define U_BOOT_TIME "%T"'; \
1563                 LC_ALL=C date +'#define U_BOOT_TZ "%z"'; \
1564                 LC_ALL=C date +'#define U_BOOT_DMI_DATE "%m/%d/%Y"'; \
1565                 LC_ALL=C date +'#define U_BOOT_BUILD_DATE 0x%Y%m%d'; \
1566         fi)
1567 endef
1568
1569 define filechk_defaultenv.h
1570         (grep -v '^#' | \
1571          grep -v '^$$' | \
1572          tr '\n' '\0' | \
1573          sed -e 's/\\\x0/\n/' | \
1574          xxd -i ; echo ", 0x00" ; )
1575 endef
1576
1577 $(version_h): include/config/uboot.release FORCE
1578         $(call filechk,version.h)
1579
1580 $(timestamp_h): $(srctree)/Makefile FORCE
1581         $(call filechk,timestamp.h)
1582
1583 $(defaultenv_h): $(CONFIG_DEFAULT_ENV_FILE:"%"=%) FORCE
1584         $(call filechk,defaultenv.h)
1585
1586 # ---------------------------------------------------------------------------
1587 quiet_cmd_cpp_lds = LDS     $@
1588 cmd_cpp_lds = $(CPP) -Wp,-MD,$(depfile) $(cpp_flags) $(LDPPFLAGS) \
1589                 -D__ASSEMBLY__ -x assembler-with-cpp -std=c99 -P -o $@ $<
1590
1591 u-boot.lds: $(LDSCRIPT) prepare FORCE
1592         $(call if_changed_dep,cpp_lds)
1593
1594 spl/u-boot-spl.bin: spl/u-boot-spl
1595         @:
1596 spl/u-boot-spl: tools prepare \
1597                 $(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_SPL_OF_PLATDATA),dts/dt.dtb) \
1598                 $(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_TPL_OF_PLATDATA),dts/dt.dtb)
1599         $(Q)$(MAKE) obj=spl -f $(srctree)/scripts/Makefile.spl all
1600
1601 spl/sunxi-spl.bin: spl/u-boot-spl
1602         @:
1603
1604 spl/sunxi-spl-with-ecc.bin: spl/sunxi-spl.bin
1605         @:
1606
1607 spl/u-boot-spl.sfp: spl/u-boot-spl
1608         @:
1609
1610 spl/boot.bin: spl/u-boot-spl
1611         @:
1612
1613 tpl/u-boot-tpl.bin: tools prepare \
1614                 $(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_SPL_OF_PLATDATA),dts/dt.dtb)
1615         $(Q)$(MAKE) obj=tpl -f $(srctree)/scripts/Makefile.spl all
1616
1617 TAG_SUBDIRS := $(patsubst %,$(srctree)/%,$(u-boot-dirs) include)
1618
1619 FIND := find
1620 FINDFLAGS := -L
1621
1622 tags ctags:
1623                 ctags -w -o ctags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \
1624                                                 -name '*.[chS]' -print`
1625                 ln -s ctags tags
1626
1627 etags:
1628                 etags -a -o etags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \
1629                                                 -name '*.[chS]' -print`
1630 cscope:
1631                 $(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) -name '*.[chS]' -print > \
1632                                                 cscope.files
1633                 cscope -b -q -k
1634
1635 SYSTEM_MAP = \
1636                 $(NM) $1 | \
1637                 grep -v '\(compiled\)\|\(\.o$$\)\|\( [aUw] \)\|\(\.\.ng$$\)\|\(LASH[RL]DI\)' | \
1638                 LC_ALL=C sort
1639 System.map:     u-boot
1640                 @$(call SYSTEM_MAP,$<) > $@
1641
1642 #########################################################################
1643
1644 # ARM relocations should all be R_ARM_RELATIVE (32-bit) or
1645 # R_AARCH64_RELATIVE (64-bit).
1646 checkarmreloc: u-boot
1647         @RELOC="`$(CROSS_COMPILE)readelf -r -W $< | cut -d ' ' -f 4 | \
1648                 grep R_A | sort -u`"; \
1649         if test "$$RELOC" != "R_ARM_RELATIVE" -a \
1650                  "$$RELOC" != "R_AARCH64_RELATIVE"; then \
1651                 echo "$< contains unexpected relocations: $$RELOC"; \
1652                 false; \
1653         fi
1654
1655 envtools: scripts_basic $(version_h) $(timestamp_h)
1656         $(Q)$(MAKE) $(build)=tools/env
1657
1658 tools-only: scripts_basic $(version_h) $(timestamp_h)
1659         $(Q)$(MAKE) $(build)=tools
1660
1661 tools-all: export HOST_TOOLS_ALL=y
1662 tools-all: envtools tools ;
1663
1664 cross_tools: export CROSS_BUILD_TOOLS=y
1665 cross_tools: tools ;
1666
1667 .PHONY : CHANGELOG
1668 CHANGELOG:
1669         git log --no-merges U-Boot-1_1_5.. | \
1670         unexpand -a | sed -e 's/\s\s*$$//' > $@
1671
1672 #########################################################################
1673
1674 ###
1675 # Cleaning is done on three levels.
1676 # make clean     Delete most generated files
1677 #                Leave enough to build external modules
1678 # make mrproper  Delete the current configuration, and all generated files
1679 # make distclean Remove editor backup files, patch leftover files and the like
1680
1681 # Directories & files removed with 'make clean'
1682 CLEAN_DIRS  += $(MODVERDIR) \
1683                $(foreach d, spl tpl, $(patsubst %,$d/%, \
1684                         $(filter-out include, $(shell ls -1 $d 2>/dev/null))))
1685
1686 CLEAN_FILES += include/bmp_logo.h include/bmp_logo_data.h \
1687                boot* u-boot* MLO* SPL System.map fit-dtb.blob
1688
1689 # Directories & files removed with 'make mrproper'
1690 MRPROPER_DIRS  += include/config include/generated spl tpl \
1691                   .tmp_objdiff
1692 MRPROPER_FILES += .config .config.old include/autoconf.mk* include/config.h \
1693                   ctags etags tags TAGS cscope* GPATH GTAGS GRTAGS GSYMS
1694
1695 # clean - Delete most, but leave enough to build external modules
1696 #
1697 clean: rm-dirs  := $(CLEAN_DIRS)
1698 clean: rm-files := $(CLEAN_FILES)
1699
1700 clean-dirs      := $(foreach f,$(u-boot-alldirs),$(if $(wildcard $(srctree)/$f/Makefile),$f))
1701
1702 clean-dirs      := $(addprefix _clean_, $(clean-dirs))
1703
1704 PHONY += $(clean-dirs) clean archclean
1705 $(clean-dirs):
1706         $(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$@)
1707
1708 clean: $(clean-dirs)
1709         $(call cmd,rmdirs)
1710         $(call cmd,rmfiles)
1711         @find $(if $(KBUILD_EXTMOD), $(KBUILD_EXTMOD), .) $(RCS_FIND_IGNORE) \
1712                 \( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \
1713                 -o -name '*.ko.*' -o -name '*.su' \
1714                 -o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \
1715                 -o -name '*.lex.c' -o -name '*.tab.[ch]' \
1716                 -o -name '*.symtypes' -o -name 'modules.order' \
1717                 -o -name modules.builtin -o -name '.tmp_*.o.*' \
1718                 -o -name 'dsdt.aml' -o -name 'dsdt.asl.tmp' -o -name 'dsdt.c' \
1719                 -o -name '*.efi' -o -name '*.gcno' -o -name '*.so' \) \
1720                 -type f -print | xargs rm -f
1721
1722 # mrproper - Delete all generated files, including .config
1723 #
1724 mrproper: rm-dirs  := $(wildcard $(MRPROPER_DIRS))
1725 mrproper: rm-files := $(wildcard $(MRPROPER_FILES))
1726 mrproper-dirs      := $(addprefix _mrproper_,scripts)
1727
1728 PHONY += $(mrproper-dirs) mrproper archmrproper
1729 $(mrproper-dirs):
1730         $(Q)$(MAKE) $(clean)=$(patsubst _mrproper_%,%,$@)
1731
1732 mrproper: clean $(mrproper-dirs)
1733         $(call cmd,rmdirs)
1734         $(call cmd,rmfiles)
1735         @rm -f arch/*/include/asm/arch
1736
1737 # distclean
1738 #
1739 PHONY += distclean
1740
1741 distclean: mrproper
1742         @find $(srctree) $(RCS_FIND_IGNORE) \
1743                 \( -name '*.orig' -o -name '*.rej' -o -name '*~' \
1744                 -o -name '*.bak' -o -name '#*#' -o -name '.*.orig' \
1745                 -o -name '.*.rej' -o -name '*%' -o -name 'core' \
1746                 -o -name '*.pyc' \) \
1747                 -type f -print | xargs rm -f
1748         @rm -f boards.cfg
1749
1750 backup:
1751         F=`basename $(srctree)` ; cd .. ; \
1752         gtar --force-local -zcvf `LC_ALL=C date "+$$F-%Y-%m-%d-%T.tar.gz"` $$F
1753
1754 help:
1755         @echo  'Cleaning targets:'
1756         @echo  '  clean           - Remove most generated files but keep the config'
1757         @echo  '  mrproper        - Remove all generated files + config + various backup files'
1758         @echo  '  distclean       - mrproper + remove editor backup and patch files'
1759         @echo  ''
1760         @echo  'Configuration targets:'
1761         @$(MAKE) -f $(srctree)/scripts/kconfig/Makefile help
1762         @echo  ''
1763         @echo  'Test targets:'
1764         @echo  ''
1765         @echo  '  check           - Run all automated tests that use sandbox'
1766         @echo  '  qcheck          - Run quick automated tests that use sandbox'
1767         @echo  ''
1768         @echo  'Other generic targets:'
1769         @echo  '  all             - Build all necessary images depending on configuration'
1770         @echo  '  tests           - Build U-Boot for sandbox and run tests'
1771         @echo  '* u-boot          - Build the bare u-boot'
1772         @echo  '  dir/            - Build all files in dir and below'
1773         @echo  '  dir/file.[oisS] - Build specified target only'
1774         @echo  '  dir/file.lst    - Build specified mixed source/assembly target only'
1775         @echo  '                    (requires a recent binutils and recent build (System.map))'
1776         @echo  '  tags/ctags      - Generate ctags file for editors'
1777         @echo  '  etags           - Generate etags file for editors'
1778         @echo  '  cscope          - Generate cscope index'
1779         @echo  '  ubootrelease    - Output the release version string (use with make -s)'
1780         @echo  '  ubootversion    - Output the version stored in Makefile (use with make -s)'
1781         @echo  "  cfg             - Don't build, just create the .cfg files"
1782         @echo  "  envtools        - Build only the target-side environment tools"
1783         @echo  ''
1784         @echo  'Static analysers'
1785         @echo  '  checkstack      - Generate a list of stack hogs'
1786         @echo  '  coccicheck      - Execute static code analysis with Coccinelle'
1787         @echo  ''
1788         @echo  'Documentation targets:'
1789         @$(MAKE) -f $(srctree)/Documentation/Makefile dochelp
1790         @echo  ''
1791         @echo  '  make V=0|1 [targets] 0 => quiet build (default), 1 => verbose build'
1792         @echo  '  make V=2   [targets] 2 => give reason for rebuild of target'
1793         @echo  '  make O=dir [targets] Locate all output files in "dir", including .config'
1794         @echo  '  make C=1   [targets] Check all c source with $$CHECK (sparse by default)'
1795         @echo  '  make C=2   [targets] Force check of all c source with $$CHECK'
1796         @echo  '  make RECORDMCOUNT_WARN=1 [targets] Warn about ignored mcount sections'
1797         @echo  '  make W=n   [targets] Enable extra gcc checks, n=1,2,3 where'
1798         @echo  '                1: warnings which may be relevant and do not occur too often'
1799         @echo  '                2: warnings which occur quite often but may still be relevant'
1800         @echo  '                3: more obscure warnings, can most likely be ignored'
1801         @echo  '                Multiple levels can be combined with W=12 or W=123'
1802         @echo  ''
1803         @echo  'Execute "make" or "make all" to build all targets marked with [*] '
1804         @echo  'For further info see the ./README file'
1805
1806 tests check:
1807         $(srctree)/test/run
1808
1809 qcheck:
1810         $(srctree)/test/run quick
1811
1812 # Documentation targets
1813 # ---------------------------------------------------------------------------
1814 DOC_TARGETS := xmldocs latexdocs pdfdocs htmldocs epubdocs cleandocs \
1815                linkcheckdocs dochelp refcheckdocs
1816 PHONY += $(DOC_TARGETS)
1817 $(DOC_TARGETS): scripts_basic FORCE
1818         $(Q)$(MAKE) $(build)=Documentation $@
1819
1820 endif #ifeq ($(config-targets),1)
1821 endif #ifeq ($(mixed-targets),1)
1822
1823 PHONY += checkstack ubootrelease ubootversion
1824
1825 checkstack:
1826         $(OBJDUMP) -d u-boot $$(find . -name u-boot-spl) | \
1827         $(PERL) $(src)/scripts/checkstack.pl $(ARCH)
1828
1829 ubootrelease:
1830         @echo "$(UBOOTVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))"
1831
1832 ubootversion:
1833         @echo $(UBOOTVERSION)
1834
1835 # Single targets
1836 # ---------------------------------------------------------------------------
1837 # Single targets are compatible with:
1838 # - build with mixed source and output
1839 # - build with separate output dir 'make O=...'
1840 # - external modules
1841 #
1842 #  target-dir => where to store outputfile
1843 #  build-dir  => directory in kernel source tree to use
1844
1845 ifeq ($(KBUILD_EXTMOD),)
1846         build-dir  = $(patsubst %/,%,$(dir $@))
1847         target-dir = $(dir $@)
1848 else
1849         zap-slash=$(filter-out .,$(patsubst %/,%,$(dir $@)))
1850         build-dir  = $(KBUILD_EXTMOD)$(if $(zap-slash),/$(zap-slash))
1851         target-dir = $(if $(KBUILD_EXTMOD),$(dir $<),$(dir $@))
1852 endif
1853
1854 %.s: %.c prepare scripts FORCE
1855         $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1856 %.i: %.c prepare scripts FORCE
1857         $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1858 %.o: %.c prepare scripts FORCE
1859         $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1860 %.lst: %.c prepare scripts FORCE
1861         $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1862 %.s: %.S prepare scripts FORCE
1863         $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1864 %.o: %.S prepare scripts FORCE
1865         $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1866 %.symtypes: %.c prepare scripts FORCE
1867         $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1868
1869 # Modules
1870 /: prepare scripts FORCE
1871         $(cmd_crmodverdir)
1872         $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \
1873         $(build)=$(build-dir)
1874 %/: prepare scripts FORCE
1875         $(cmd_crmodverdir)
1876         $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \
1877         $(build)=$(build-dir)
1878 %.ko: prepare scripts FORCE
1879         $(cmd_crmodverdir)
1880         $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1)   \
1881         $(build)=$(build-dir) $(@:.ko=.o)
1882         $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost
1883
1884 # Consistency checks
1885 # ---------------------------------------------------------------------------
1886
1887 PHONY += coccicheck
1888
1889 coccicheck:
1890         $(Q)$(CONFIG_SHELL) $(srctree)/scripts/$@
1891
1892 # FIXME Should go into a make.lib or something
1893 # ===========================================================================
1894
1895 quiet_cmd_rmdirs = $(if $(wildcard $(rm-dirs)),CLEAN   $(wildcard $(rm-dirs)))
1896       cmd_rmdirs = rm -rf $(rm-dirs)
1897
1898 quiet_cmd_rmfiles = $(if $(wildcard $(rm-files)),CLEAN   $(wildcard $(rm-files)))
1899       cmd_rmfiles = rm -f $(rm-files)
1900
1901 # read all saved command lines
1902
1903 targets := $(wildcard $(sort $(targets)))
1904 cmd_files := $(wildcard .*.cmd $(foreach f,$(targets),$(dir $(f)).$(notdir $(f)).cmd))
1905
1906 ifneq ($(cmd_files),)
1907   $(cmd_files): ;       # Do not try to update included dependency files
1908   include $(cmd_files)
1909 endif
1910
1911 endif   # skip-makefile
1912
1913 PHONY += FORCE
1914 FORCE:
1915
1916 # Declare the contents of the .PHONY variable as phony.  We keep that
1917 # information in a variable so we can use it in if_changed and friends.
1918 .PHONY: $(PHONY)