Makefile

   1 #
   2 # SPDX-License-Identifier:      GPL-2.0+
   3 #
   4
   5 VERSION = 2017
   6 PATCHLEVEL = 07
   7 SUBLEVEL =
   8 EXTRAVERSION =
   9 NAME =
  10
  11 # *DOCUMENTATION*
  12 # To see a list of typical targets execute "make help"
  13 # More info can be located in ./README
  14 # Comments in this file are targeted only to the developer, do not
  15 # expect to learn how to build the kernel reading this file.
  16
  17 # o Do not use make's built-in rules and variables
  18 #   (this increases performance and avoids hard-to-debug behaviour);
  19 # o Look for make include files relative to root of kernel src
  20 MAKEFLAGS += -rR --include-dir=$(CURDIR)
  21
  22 # Avoid funny character set dependencies
  23 unexport LC_ALL
  24 LC_COLLATE=C
  25 LC_NUMERIC=C
  26 export LC_COLLATE LC_NUMERIC
  27
  28 # Avoid interference with shell env settings
  29 unexport GREP_OPTIONS
  30
  31 # We are using a recursive build, so we need to do a little thinking
  32 # to get the ordering right.
  33 #
  34 # Most importantly: sub-Makefiles should only ever modify files in
  35 # their own directory. If in some directory we have a dependency on
  36 # a file in another dir (which doesn't happen often, but it's often
  37 # unavoidable when linking the built-in.o targets which finally
  38 # turn into vmlinux), we will call a sub make in that other dir, and
  39 # after that we are sure that everything which is in that other dir
  40 # is now up to date.
  41 #
  42 # The only cases where we need to modify files which have global
  43 # effects are thus separated out and done before the recursive
  44 # descending is started. They are now explicitly listed as the
  45 # prepare rule.
  46
  47 # Beautify output
  48 # ---------------------------------------------------------------------------
  49 #
  50 # Normally, we echo the whole command before executing it. By making
  51 # that echo $($(quiet)$(cmd)), we now have the possibility to set
  52 # $(quiet) to choose other forms of output instead, e.g.
  53 #
  54 #         quiet_cmd_cc_o_c = Compiling $(RELDIR)/$@
  55 #         cmd_cc_o_c       = $(CC) $(c_flags) -c -o $@ $<
  56 #
  57 # If $(quiet) is empty, the whole command will be printed.
  58 # If it is set to "quiet_", only the short version will be printed.
  59 # If it is set to "silent_", nothing will be printed at all, since
  60 # the variable $(silent_cmd_cc_o_c) doesn't exist.
  61 #
  62 # A simple variant is to prefix commands with $(Q) - that's useful
  63 # for commands that shall be hidden in non-verbose mode.
  64 #
  65 #       $(Q)ln $@ :<
  66 #
  67 # If KBUILD_VERBOSE equals 0 then the above command will be hidden.
  68 # If KBUILD_VERBOSE equals 1 then the above command is displayed.
  69 #
  70 # To put more focus on warnings, be less verbose as default
  71 # Use 'make V=1' to see the full commands
  72
  73 ifeq ("$(origin V)", "command line")
  74   KBUILD_VERBOSE = $(V)
  75 endif
  76 ifndef KBUILD_VERBOSE
  77   KBUILD_VERBOSE = 0
  78 endif
  79
  80 ifeq ($(KBUILD_VERBOSE),1)
  81   quiet =
  82   Q =
  83 else
  84   quiet=quiet_
  85   Q = @
  86 endif
  87
  88 # If the user is running make -s (silent mode), suppress echoing of
  89 # commands
  90
  91 ifneq ($(filter 4.%,$(MAKE_VERSION)),)  # make-4
  92 ifneq ($(filter %s ,$(firstword x$(MAKEFLAGS))),)
  93   quiet=silent_
  94 endif
  95 else                                    # make-3.8x
  96 ifneq ($(filter s% -s%,$(MAKEFLAGS)),)
  97   quiet=silent_
  98 endif
  99 endif
 100
 101 export quiet Q KBUILD_VERBOSE
 102
 103 # kbuild supports saving output files in a separate directory.
 104 # To locate output files in a separate directory two syntaxes are supported.
 105 # In both cases the working directory must be the root of the kernel src.
 106 # 1) O=
 107 # Use "make O=dir/to/store/output/files/"
 108 #
 109 # 2) Set KBUILD_OUTPUT
 110 # Set the environment variable KBUILD_OUTPUT to point to the directory
 111 # where the output files shall be placed.
 112 # export KBUILD_OUTPUT=dir/to/store/output/files/
 113 # make
 114 #
 115 # The O= assignment takes precedence over the KBUILD_OUTPUT environment
 116 # variable.
 117
 118 # KBUILD_SRC is set on invocation of make in OBJ directory
 119 # KBUILD_SRC is not intended to be used by the regular user (for now)
 120 ifeq ($(KBUILD_SRC),)
 121
 122 # OK, Make called in directory where kernel src resides
 123 # Do we want to locate output files in a separate directory?
 124 ifeq ("$(origin O)", "command line")
 125   KBUILD_OUTPUT := $(O)
 126 endif
 127
 128 # That's our default target when none is given on the command line
 129 PHONY := _all
 130 _all:
 131
 132 # Cancel implicit rules on top Makefile
 133 $(CURDIR)/Makefile Makefile: ;
 134
 135 ifneq ($(KBUILD_OUTPUT),)
 136 # Invoke a second make in the output directory, passing relevant variables
 137 # check that the output directory actually exists
 138 saved-output := $(KBUILD_OUTPUT)
 139 KBUILD_OUTPUT := $(shell mkdir -p $(KBUILD_OUTPUT) && cd $(KBUILD_OUTPUT) \
 140                                                                 && /bin/pwd)
 141 $(if $(KBUILD_OUTPUT),, \
 142      $(error failed to create output directory "$(saved-output)"))
 143
 144 PHONY += $(MAKECMDGOALS) sub-make
 145
 146 $(filter-out _all sub-make $(CURDIR)/Makefile, $(MAKECMDGOALS)) _all: sub-make
 147         @:
 148
 149 sub-make: FORCE
 150         $(Q)$(MAKE) -C $(KBUILD_OUTPUT) KBUILD_SRC=$(CURDIR) \
 151         -f $(CURDIR)/Makefile $(filter-out _all sub-make,$(MAKECMDGOALS))
 152
 153 # Leave processing to above invocation of make
 154 skip-makefile := 1
 155 endif # ifneq ($(KBUILD_OUTPUT),)
 156 endif # ifeq ($(KBUILD_SRC),)
 157
 158 # We process the rest of the Makefile if this is the final invocation of make
 159 ifeq ($(skip-makefile),)
 160
 161 # Do not print "Entering directory ...",
 162 # but we want to display it when entering to the output directory
 163 # so that IDEs/editors are able to understand relative filenames.
 164 MAKEFLAGS += --no-print-directory
 165
 166 # Call a source code checker (by default, "sparse") as part of the
 167 # C compilation.
 168 #
 169 # Use 'make C=1' to enable checking of only re-compiled files.
 170 # Use 'make C=2' to enable checking of *all* source files, regardless
 171 # of whether they are re-compiled or not.
 172 #
 173 # See the file "Documentation/sparse.txt" for more details, including
 174 # where to get the "sparse" utility.
 175
 176 ifeq ("$(origin C)", "command line")
 177   KBUILD_CHECKSRC = $(C)
 178 endif
 179 ifndef KBUILD_CHECKSRC
 180   KBUILD_CHECKSRC = 0
 181 endif
 182
 183 # Use make M=dir to specify directory of external module to build
 184 # Old syntax make ... SUBDIRS=$PWD is still supported
 185 # Setting the environment variable KBUILD_EXTMOD take precedence
 186 ifdef SUBDIRS
 187   KBUILD_EXTMOD ?= $(SUBDIRS)
 188 endif
 189
 190 ifeq ("$(origin M)", "command line")
 191   KBUILD_EXTMOD := $(M)
 192 endif
 193
 194 # If building an external module we do not care about the all: rule
 195 # but instead _all depend on modules
 196 PHONY += all
 197 ifeq ($(KBUILD_EXTMOD),)
 198 _all: all
 199 else
 200 _all: modules
 201 endif
 202
 203 ifeq ($(KBUILD_SRC),)
 204         # building in the source tree
 205         srctree := .
 206 else
 207         ifeq ($(KBUILD_SRC)/,$(dir $(CURDIR)))
 208                 # building in a subdirectory of the source tree
 209                 srctree := ..
 210         else
 211                 srctree := $(KBUILD_SRC)
 212         endif
 213 endif
 214 objtree         := .
 215 src             := $(srctree)
 216 obj             := $(objtree)
 217
 218 VPATH           := $(srctree)$(if $(KBUILD_EXTMOD),:$(KBUILD_EXTMOD))
 219
 220 export srctree objtree VPATH
 221
 222 # Make sure CDPATH settings don't interfere
 223 unexport CDPATH
 224
 225 #########################################################################
 226
 227 HOSTARCH := $(shell uname -m | \
 228         sed -e s/i.86/x86/ \
 229             -e s/sun4u/sparc64/ \
 230             -e s/arm.*/arm/ \
 231             -e s/sa110/arm/ \
 232             -e s/ppc64/powerpc/ \
 233             -e s/ppc/powerpc/ \
 234             -e s/macppc/powerpc/\
 235             -e s/sh.*/sh/)
 236
 237 HOSTOS := $(shell uname -s | tr '[:upper:]' '[:lower:]' | \
 238             sed -e 's/\(cygwin\).*/cygwin/')
 239
 240 export  HOSTARCH HOSTOS
 241
 242 #########################################################################
 243
 244 # set default to nothing for native builds
 245 ifeq ($(HOSTARCH),$(ARCH))
 246 CROSS_COMPILE ?=
 247 endif
 248
 249 KCONFIG_CONFIG  ?= .config
 250 export KCONFIG_CONFIG
 251
 252 # SHELL used by kbuild
 253 CONFIG_SHELL := $(shell if [ -x "$$BASH" ]; then echo $$BASH; \
 254           else if [ -x /bin/bash ]; then echo /bin/bash; \
 255           else echo sh; fi ; fi)
 256
 257 HOSTCC       = cc
 258 HOSTCXX      = c++
 259 HOSTCFLAGS   = -Wall -Wstrict-prototypes -O2 -fomit-frame-pointer \
 260                 $(if $(CONFIG_TOOLS_DEBUG),-g)
 261 HOSTCXXFLAGS = -O2
 262
 263 ifeq ($(HOSTOS),cygwin)
 264 HOSTCFLAGS      += -ansi
 265 endif
 266
 267 # Mac OS X / Darwin's C preprocessor is Apple specific.  It
 268 # generates numerous errors and warnings.  We want to bypass it
 269 # and use GNU C's cpp.  To do this we pass the -traditional-cpp
 270 # option to the compiler.  Note that the -traditional-cpp flag
 271 # DOES NOT have the same semantics as GNU C's flag, all it does
 272 # is invoke the GNU preprocessor in stock ANSI/ISO C fashion.
 273 #
 274 # Apple's linker is similar, thanks to the new 2 stage linking
 275 # multiple symbol definitions are treated as errors, hence the
 276 # -multiply_defined suppress option to turn off this error.
 277 #
 278 ifeq ($(HOSTOS),darwin)
 279 # get major and minor product version (e.g. '10' and '6' for Snow Leopard)
 280 DARWIN_MAJOR_VERSION    = $(shell sw_vers -productVersion | cut -f 1 -d '.')
 281 DARWIN_MINOR_VERSION    = $(shell sw_vers -productVersion | cut -f 2 -d '.')
 282
 283 os_x_before     = $(shell if [ $(DARWIN_MAJOR_VERSION) -le $(1) -a \
 284         $(DARWIN_MINOR_VERSION) -le $(2) ] ; then echo "$(3)"; else echo "$(4)"; fi ;)
 285
 286 # Snow Leopards build environment has no longer restrictions as described above
 287 HOSTCC       = $(call os_x_before, 10, 5, "cc", "gcc")
 288 HOSTCFLAGS  += $(call os_x_before, 10, 4, "-traditional-cpp")
 289 HOSTLDFLAGS += $(call os_x_before, 10, 5, "-multiply_defined suppress")
 290
 291 # since Lion (10.7) ASLR is on by default, but we use linker generated lists
 292 # in some host tools which is a problem then ... so disable ASLR for these
 293 # tools
 294 HOSTLDFLAGS += $(call os_x_before, 10, 7, "", "-Xlinker -no_pie")
 295 endif
 296
 297 # Decide whether to build built-in, modular, or both.
 298 # Normally, just do built-in.
 299
 300 KBUILD_MODULES :=
 301 KBUILD_BUILTIN := 1
 302
 303 # If we have only "make modules", don't compile built-in objects.
 304 # When we're building modules with modversions, we need to consider
 305 # the built-in objects during the descend as well, in order to
 306 # make sure the checksums are up to date before we record them.
 307
 308 ifeq ($(MAKECMDGOALS),modules)
 309   KBUILD_BUILTIN := $(if $(CONFIG_MODVERSIONS),1)
 310 endif
 311
 312 # If we have "make <whatever> modules", compile modules
 313 # in addition to whatever we do anyway.
 314 # Just "make" or "make all" shall build modules as well
 315
 316 # U-Boot does not need modules
 317 #ifneq ($(filter all _all modules,$(MAKECMDGOALS)),)
 318 #  KBUILD_MODULES := 1
 319 #endif
 320
 321 #ifeq ($(MAKECMDGOALS),)
 322 #  KBUILD_MODULES := 1
 323 #endif
 324
 325 export KBUILD_MODULES KBUILD_BUILTIN
 326 export KBUILD_CHECKSRC KBUILD_SRC KBUILD_EXTMOD
 327
 328 # We need some generic definitions (do not try to remake the file).
 329 scripts/Kbuild.include: ;
 330 include scripts/Kbuild.include
 331
 332 # Make variables (CC, etc...)
 333
 334 AS              = $(CROSS_COMPILE)as
 335 # Always use GNU ld
 336 ifneq ($(shell $(CROSS_COMPILE)ld.bfd -v 2> /dev/null),)
 337 LD              = $(CROSS_COMPILE)ld.bfd
 338 else
 339 LD              = $(CROSS_COMPILE)ld
 340 endif
 341 CC              = $(CROSS_COMPILE)gcc
 342 CPP             = $(CC) -E
 343 AR              = $(CROSS_COMPILE)ar
 344 NM              = $(CROSS_COMPILE)nm
 345 LDR             = $(CROSS_COMPILE)ldr
 346 STRIP           = $(CROSS_COMPILE)strip
 347 OBJCOPY         = $(CROSS_COMPILE)objcopy
 348 OBJDUMP         = $(CROSS_COMPILE)objdump
 349 AWK             = awk
 350 PERL            = perl
 351 PYTHON          ?= python
 352 DTC             = dtc
 353 CHECK           = sparse
 354
 355 CHECKFLAGS     := -D__linux__ -Dlinux -D__STDC__ -Dunix -D__unix__ \
 356                   -Wbitwise -Wno-return-void -D__CHECK_ENDIAN__ $(CF)
 357
 358 KBUILD_CPPFLAGS := -D__KERNEL__ -D__UBOOT__
 359
 360 KBUILD_CFLAGS   := -Wall -Wstrict-prototypes \
 361                    -Wno-format-security \
 362                    -fno-builtin -ffreestanding
 363 KBUILD_AFLAGS   := -D__ASSEMBLY__
 364
 365 # Read UBOOTRELEASE from include/config/uboot.release (if it exists)
 366 UBOOTRELEASE = $(shell cat include/config/uboot.release 2> /dev/null)
 367 UBOOTVERSION = $(VERSION)$(if $(PATCHLEVEL),.$(PATCHLEVEL)$(if $(SUBLEVEL),.$(SUBLEVEL)))$(EXTRAVERSION)
 368
 369 export VERSION PATCHLEVEL SUBLEVEL UBOOTRELEASE UBOOTVERSION
 370 export ARCH CPU BOARD VENDOR SOC CPUDIR BOARDDIR
 371 export CONFIG_SHELL HOSTCC HOSTCFLAGS HOSTLDFLAGS CROSS_COMPILE AS LD CC
 372 export CPP AR NM LDR STRIP OBJCOPY OBJDUMP
 373 export MAKE AWK PERL PYTHON
 374 export HOSTCXX HOSTCXXFLAGS CHECK CHECKFLAGS DTC DTC_FLAGS
 375
 376 export KBUILD_CPPFLAGS NOSTDINC_FLAGS UBOOTINCLUDE OBJCOPYFLAGS LDFLAGS
 377 export KBUILD_CFLAGS KBUILD_AFLAGS
 378
 379 # When compiling out-of-tree modules, put MODVERDIR in the module
 380 # tree rather than in the kernel tree. The kernel tree might
 381 # even be read-only.
 382 export MODVERDIR := $(if $(KBUILD_EXTMOD),$(firstword $(KBUILD_EXTMOD))/).tmp_versions
 383
 384 # Files to ignore in find ... statements
 385
 386 export RCS_FIND_IGNORE := \( -name SCCS -o -name BitKeeper -o -name .svn -o    \
 387                           -name CVS -o -name .pc -o -name .hg -o -name .git \) \
 388                           -prune -o
 389 export RCS_TAR_IGNORE := --exclude SCCS --exclude BitKeeper --exclude .svn \
 390                          --exclude CVS --exclude .pc --exclude .hg --exclude .git
 391
 392 # ===========================================================================
 393 # Rules shared between *config targets and build targets
 394
 395 # Basic helpers built in scripts/
 396 PHONY += scripts_basic
 397 scripts_basic:
 398         $(Q)$(MAKE) $(build)=scripts/basic
 399         $(Q)rm -f .tmp_quiet_recordmcount
 400
 401 # To avoid any implicit rule to kick in, define an empty command.
 402 scripts/basic/%: scripts_basic ;
 403
 404 PHONY += outputmakefile
 405 # outputmakefile generates a Makefile in the output directory, if using a
 406 # separate output directory. This allows convenient use of make in the
 407 # output directory.
 408 outputmakefile:
 409 ifneq ($(KBUILD_SRC),)
 410         $(Q)ln -fsn $(srctree) source
 411         $(Q)$(CONFIG_SHELL) $(srctree)/scripts/mkmakefile \
 412             $(srctree) $(objtree) $(VERSION) $(PATCHLEVEL)
 413 endif
 414
 415 # To make sure we do not include .config for any of the *config targets
 416 # catch them early, and hand them over to scripts/kconfig/Makefile
 417 # It is allowed to specify more targets when calling make, including
 418 # mixing *config targets and build targets.
 419 # For example 'make oldconfig all'.
 420 # Detect when mixed targets is specified, and make a second invocation
 421 # of make so .config is not included in this case either (for *config).
 422
 423 version_h := include/generated/version_autogenerated.h
 424 timestamp_h := include/generated/timestamp_autogenerated.h
 425
 426 no-dot-config-targets := clean clobber mrproper distclean \
 427                          help %docs check% coccicheck \
 428                          ubootversion backup tests
 429
 430 config-targets := 0
 431 mixed-targets  := 0
 432 dot-config     := 1
 433
 434 ifneq ($(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         $(Q)touch include/config/auto.conf
 518
 519 -include include/autoconf.mk
 520 -include include/autoconf.mk.dep
 521
 522 # We want to include arch/$(ARCH)/config.mk only when include/config/auto.conf
 523 # is up-to-date. When we switch to a different board configuration, old CONFIG
 524 # macros are still remaining in include/config/auto.conf. Without the following
 525 # gimmick, wrong config.mk would be included leading nasty warnings/errors.
 526 ifneq ($(wildcard $(KCONFIG_CONFIG)),)
 527 ifneq ($(wildcard include/config/auto.conf),)
 528 autoconf_is_old := $(shell find . -path ./$(KCONFIG_CONFIG) -newer \
 529                                                 include/config/auto.conf)
 530 ifeq ($(autoconf_is_old),)
 531 include config.mk
 532 include arch/$(ARCH)/Makefile
 533 endif
 534 endif
 535 endif
 536
 537 # These are set by the arch-specific config.mk. Make sure they are exported
 538 # so they can be used when building an EFI application.
 539 export EFI_LDS          # Filename of EFI link script in arch/$(ARCH)/lib
 540 export EFI_CRT0         # Filename of EFI CRT0 in arch/$(ARCH)/lib
 541 export EFI_RELOC        # Filename of EFU relocation code in arch/$(ARCH)/lib
 542 export CFLAGS_EFI       # Compiler flags to add when building EFI app
 543 export CFLAGS_NON_EFI   # Compiler flags to remove when building EFI app
 544 export EFI_TARGET       # binutils target if EFI is natively supported
 545
 546 # If board code explicitly specified LDSCRIPT or CONFIG_SYS_LDSCRIPT, use
 547 # that (or fail if absent).  Otherwise, search for a linker script in a
 548 # standard location.
 549
 550 ifndef LDSCRIPT
 551         #LDSCRIPT := $(srctree)/board/$(BOARDDIR)/u-boot.lds.debug
 552         ifdef CONFIG_SYS_LDSCRIPT
 553                 # need to strip off double quotes
 554                 LDSCRIPT := $(srctree)/$(CONFIG_SYS_LDSCRIPT:"%"=%)
 555         endif
 556 endif
 557
 558 # If there is no specified link script, we look in a number of places for it
 559 ifndef LDSCRIPT
 560         ifeq ($(wildcard $(LDSCRIPT)),)
 561                 LDSCRIPT := $(srctree)/board/$(BOARDDIR)/u-boot.lds
 562         endif
 563         ifeq ($(wildcard $(LDSCRIPT)),)
 564                 LDSCRIPT := $(srctree)/$(CPUDIR)/u-boot.lds
 565         endif
 566         ifeq ($(wildcard $(LDSCRIPT)),)
 567                 LDSCRIPT := $(srctree)/arch/$(ARCH)/cpu/u-boot.lds
 568         endif
 569 endif
 570
 571 else
 572 # Dummy target needed, because used as prerequisite
 573 include/config/auto.conf: ;
 574 endif # $(dot-config)
 575
 576 #
 577 # Xtensa linker script cannot be preprocessed with -ansi because of
 578 # preprocessor operations on strings that don't make C identifiers.
 579 #
 580 ifeq ($(CONFIG_XTENSA),)
 581 LDPPFLAGS       += -ansi
 582 endif
 583
 584 ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE
 585 KBUILD_CFLAGS   += -Os
 586 else
 587 KBUILD_CFLAGS   += -O2
 588 endif
 589
 590 KBUILD_CFLAGS += $(call cc-option,-fno-stack-protector)
 591 KBUILD_CFLAGS += $(call cc-option,-fno-delete-null-pointer-checks)
 592
 593 KBUILD_CFLAGS   += -g
 594 # $(KBUILD_AFLAGS) sets -g, which causes gcc to pass a suitable -g<format>
 595 # option to the assembler.
 596 KBUILD_AFLAGS   += -g
 597
 598 # Report stack usage if supported
 599 ifeq ($(shell $(CONFIG_SHELL) $(srctree)/scripts/gcc-stack-usage.sh $(CC)),y)
 600         KBUILD_CFLAGS += -fstack-usage
 601 endif
 602
 603 KBUILD_CFLAGS += $(call cc-option,-Wno-format-nonliteral)
 604
 605 # turn jbsr into jsr for m68k
 606 ifeq ($(ARCH),m68k)
 607 ifeq ($(findstring 3.4,$(shell $(CC) --version)),3.4)
 608 KBUILD_AFLAGS += -Wa,-gstabs,-S
 609 endif
 610 endif
 611
 612 # Prohibit date/time macros, which would make the build non-deterministic
 613 KBUILD_CFLAGS   += $(call cc-option,-Werror=date-time)
 614
 615 include scripts/Makefile.extrawarn
 616
 617 # Add user supplied CPPFLAGS, AFLAGS and CFLAGS as the last assignments
 618 KBUILD_CPPFLAGS += $(KCPPFLAGS)
 619 KBUILD_AFLAGS += $(KAFLAGS)
 620 KBUILD_CFLAGS += $(KCFLAGS)
 621
 622 # Use UBOOTINCLUDE when you must reference the include/ directory.
 623 # Needed to be compatible with the O= option
 624 UBOOTINCLUDE    := \
 625                 -Iinclude \
 626                 $(if $(KBUILD_SRC), -I$(srctree)/include) \
 627                 $(if $(CONFIG_$(SPL_)SYS_THUMB_BUILD), \
 628                         $(if $(CONFIG_HAS_THUMB2),, \
 629                                 -I$(srctree)/arch/$(ARCH)/thumb1/include),) \
 630                 -I$(srctree)/arch/$(ARCH)/include \
 631                 -include $(srctree)/include/linux/kconfig.h
 632
 633 NOSTDINC_FLAGS += -nostdinc -isystem $(shell $(CC) -print-file-name=include)
 634 CHECKFLAGS     += $(NOSTDINC_FLAGS)
 635
 636 # FIX ME
 637 cpp_flags := $(KBUILD_CPPFLAGS) $(PLATFORM_CPPFLAGS) $(UBOOTINCLUDE) \
 638                                                         $(NOSTDINC_FLAGS)
 639 c_flags := $(KBUILD_CFLAGS) $(cpp_flags)
 640
 641 #########################################################################
 642 # U-Boot objects....order is important (i.e. start must be first)
 643
 644 HAVE_VENDOR_COMMON_LIB = $(if $(wildcard $(srctree)/board/$(VENDOR)/common/Makefile),y,n)
 645
 646 libs-y += lib/
 647 libs-$(HAVE_VENDOR_COMMON_LIB) += board/$(VENDOR)/common/
 648 libs-$(CONFIG_OF_EMBED) += dts/
 649 libs-y += fs/
 650 libs-y += net/
 651 libs-y += disk/
 652 libs-y += drivers/
 653 libs-y += drivers/dma/
 654 libs-y += drivers/gpio/
 655 libs-y += drivers/i2c/
 656 libs-y += drivers/mtd/
 657 libs-$(CONFIG_CMD_NAND) += drivers/mtd/nand/
 658 libs-y += drivers/mtd/onenand/
 659 libs-$(CONFIG_CMD_UBI) += drivers/mtd/ubi/
 660 libs-y += drivers/mtd/spi/
 661 libs-y += drivers/net/
 662 libs-y += drivers/net/phy/
 663 libs-y += drivers/pci/
 664 libs-y += drivers/power/ \
 665         drivers/power/domain/ \
 666         drivers/power/fuel_gauge/ \
 667         drivers/power/mfd/ \
 668         drivers/power/pmic/ \
 669         drivers/power/battery/ \
 670         drivers/power/regulator/
 671 libs-y += drivers/spi/
 672 libs-$(CONFIG_FMAN_ENET) += drivers/net/fm/
 673 libs-$(CONFIG_SYS_FSL_DDR) += drivers/ddr/fsl/
 674 libs-$(CONFIG_SYS_FSL_MMDC) += drivers/ddr/fsl/
 675 libs-$(CONFIG_ALTERA_SDRAM) += drivers/ddr/altera/
 676 libs-y += drivers/serial/
 677 libs-y += drivers/usb/dwc3/
 678 libs-y += drivers/usb/common/
 679 libs-y += drivers/usb/emul/
 680 libs-y += drivers/usb/eth/
 681 libs-y += drivers/usb/gadget/
 682 libs-y += drivers/usb/gadget/udc/
 683 libs-y += drivers/usb/host/
 684 libs-y += drivers/usb/musb/
 685 libs-y += drivers/usb/musb-new/
 686 libs-y += drivers/usb/phy/
 687 libs-y += drivers/usb/ulpi/
 688 libs-y += cmd/
 689 libs-y += common/
 690 libs-$(CONFIG_API) += api/
 691 libs-$(CONFIG_HAS_POST) += post/
 692 libs-y += test/
 693 libs-y += test/dm/
 694 libs-$(CONFIG_UT_ENV) += test/env/
 695 libs-$(CONFIG_UT_OVERLAY) += test/overlay/
 696
 697 libs-y += $(if $(BOARDDIR),board/$(BOARDDIR)/)
 698
 699 libs-y := $(sort $(libs-y))
 700
 701 u-boot-dirs     := $(patsubst %/,%,$(filter %/, $(libs-y))) tools examples
 702
 703 u-boot-alldirs  := $(sort $(u-boot-dirs) $(patsubst %/,%,$(filter %/, $(libs-))))
 704
 705 libs-y          := $(patsubst %/, %/built-in.o, $(libs-y))
 706
 707 u-boot-init := $(head-y)
 708 u-boot-main := $(libs-y)
 709
 710
 711 # Add GCC lib
 712 ifeq ($(CONFIG_USE_PRIVATE_LIBGCC),y)
 713 PLATFORM_LIBGCC = arch/$(ARCH)/lib/lib.a
 714 else
 715 PLATFORM_LIBGCC := -L $(shell dirname `$(CC) $(c_flags) -print-libgcc-file-name`) -lgcc
 716 endif
 717 PLATFORM_LIBS += $(PLATFORM_LIBGCC)
 718 export PLATFORM_LIBS
 719 export PLATFORM_LIBGCC
 720
 721 # Special flags for CPP when processing the linker script.
 722 # Pass the version down so we can handle backwards compatibility
 723 # on the fly.
 724 LDPPFLAGS += \
 725         -include $(srctree)/include/u-boot/u-boot.lds.h \
 726         -DCPUDIR=$(CPUDIR) \
 727         $(shell $(LD) --version | \
 728           sed -ne 's/GNU ld version \([0-9][0-9]*\)\.\([0-9][0-9]*\).*/-DLD_MAJOR=\1 -DLD_MINOR=\2/p')
 729
 730 #########################################################################
 731 #########################################################################
 732
 733 ifneq ($(CONFIG_BOARD_SIZE_LIMIT),)
 734 BOARD_SIZE_CHECK = \
 735         @actual=`wc -c $@ | awk '{print $$1}'`; \
 736         limit=`printf "%d" $(CONFIG_BOARD_SIZE_LIMIT)`; \
 737         if test $$actual -gt $$limit; then \
 738                 echo "$@ exceeds file size limit:" >&2 ; \
 739                 echo "  limit:  $$limit bytes" >&2 ; \
 740                 echo "  actual: $$actual bytes" >&2 ; \
 741                 echo "  excess: $$((actual - limit)) bytes" >&2; \
 742                 exit 1; \
 743         fi
 744 else
 745 BOARD_SIZE_CHECK =
 746 endif
 747
 748 # Statically apply RELA-style relocations (currently arm64 only)
 749 # This is useful for arm64 where static relocation needs to be performed on
 750 # the raw binary, but certain simulators only accept an ELF file (but don't
 751 # do the relocation).
 752 ifneq ($(CONFIG_STATIC_RELA),)
 753 # $(1) is u-boot ELF, $(2) is u-boot bin, $(3) is text base
 754 DO_STATIC_RELA = \
 755         start=$$($(NM) $(1) | grep __rel_dyn_start | cut -f 1 -d ' '); \
 756         end=$$($(NM) $(1) | grep __rel_dyn_end | cut -f 1 -d ' '); \
 757         tools/relocate-rela $(2) $(3) $$start $$end
 758 else
 759 DO_STATIC_RELA =
 760 endif
 761
 762 # Always append ALL so that arch config.mk's can add custom ones
 763 ALL-y += u-boot.srec u-boot.bin u-boot.sym System.map binary_size_check
 764
 765 ALL-$(CONFIG_ONENAND_U_BOOT) += u-boot-onenand.bin
 766 ifeq ($(CONFIG_SPL_FSL_PBL),y)
 767 ALL-$(CONFIG_RAMBOOT_PBL) += u-boot-with-spl-pbl.bin
 768 else
 769 ifneq ($(CONFIG_SECURE_BOOT), y)
 770 # For Secure Boot The Image needs to be signed and Header must also
 771 # be included. So The image has to be built explicitly
 772 ALL-$(CONFIG_RAMBOOT_PBL) += u-boot.pbl
 773 endif
 774 endif
 775 ALL-$(CONFIG_SPL) += spl/u-boot-spl.bin
 776 ifeq ($(CONFIG_MX6)$(CONFIG_SECURE_BOOT), yy)
 777 ALL-$(CONFIG_SPL_FRAMEWORK) += u-boot-ivt.img
 778 else
 779 ALL-$(CONFIG_SPL_FRAMEWORK) += u-boot.img
 780 endif
 781 ALL-$(CONFIG_TPL) += tpl/u-boot-tpl.bin
 782 ALL-$(CONFIG_OF_SEPARATE) += u-boot.dtb
 783 ifeq ($(CONFIG_SPL_FRAMEWORK),y)
 784 ALL-$(CONFIG_OF_SEPARATE) += u-boot-dtb.img
 785 endif
 786 ALL-$(CONFIG_OF_HOSTFILE) += u-boot.dtb
 787 ifneq ($(CONFIG_SPL_TARGET),)
 788 ALL-$(CONFIG_SPL) += $(CONFIG_SPL_TARGET:"%"=%)
 789 endif
 790 ALL-$(CONFIG_REMAKE_ELF) += u-boot.elf
 791 ALL-$(CONFIG_EFI_APP) += u-boot-app.efi
 792 ALL-$(CONFIG_EFI_STUB) += u-boot-payload.efi
 793
 794 ifneq ($(BUILD_ROM),)
 795 ALL-$(CONFIG_X86_RESET_VECTOR) += u-boot.rom
 796 endif
 797
 798 # enable combined SPL/u-boot/dtb rules for tegra
 799 ifeq ($(CONFIG_TEGRA)$(CONFIG_SPL),yy)
 800 ALL-y += u-boot-tegra.bin u-boot-nodtb-tegra.bin
 801 ALL-$(CONFIG_OF_SEPARATE) += u-boot-dtb-tegra.bin
 802 endif
 803
 804 # Add optional build target if defined in board/cpu/soc headers
 805 ifneq ($(CONFIG_BUILD_TARGET),)
 806 ALL-y += $(CONFIG_BUILD_TARGET:"%"=%)
 807 endif
 808
 809 LDFLAGS_u-boot += $(LDFLAGS_FINAL)
 810
 811 # Avoid 'Not enough room for program headers' error on binutils 2.28 onwards.
 812 LDFLAGS_u-boot += $(call ld-option, --no-dynamic-linker)
 813
 814 ifneq ($(CONFIG_SYS_TEXT_BASE),)
 815 LDFLAGS_u-boot += -Ttext $(CONFIG_SYS_TEXT_BASE)
 816 endif
 817
 818 # Normally we fill empty space with 0xff
 819 quiet_cmd_objcopy = OBJCOPY $@
 820 cmd_objcopy = $(OBJCOPY) --gap-fill=0xff $(OBJCOPYFLAGS) \
 821         $(OBJCOPYFLAGS_$(@F)) $< $@
 822
 823 # Provide a version which does not do this, for use by EFI
 824 quiet_cmd_zobjcopy = OBJCOPY $@
 825 cmd_zobjcopy = $(OBJCOPY) $(OBJCOPYFLAGS) $(OBJCOPYFLAGS_$(@F)) $< $@
 826
 827 quiet_cmd_efipayload = OBJCOPY $@
 828 cmd_efipayload = $(OBJCOPY) -I binary -O $(EFIPAYLOAD_BFDTARGET) -B $(EFIPAYLOAD_BFDARCH) $< $@
 829
 830 MKIMAGEOUTPUT ?= /dev/null
 831
 832 quiet_cmd_mkimage = MKIMAGE $@
 833 cmd_mkimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -d $< $@ \
 834         $(if $(KBUILD_VERBOSE:1=), >$(MKIMAGEOUTPUT))
 835
 836 quiet_cmd_mkfitimage = MKIMAGE $@
 837 cmd_mkfitimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -f $(U_BOOT_ITS) -E $@ \
 838         $(if $(KBUILD_VERBOSE:1=), >$(MKIMAGEOUTPUT))
 839
 840 quiet_cmd_cat = CAT     $@
 841 cmd_cat = cat $(filter-out $(PHONY), $^) > $@
 842
 843 append = cat $(filter-out $< $(PHONY), $^) >> $@
 844
 845 quiet_cmd_pad_cat = CAT     $@
 846 cmd_pad_cat = $(cmd_objcopy) && $(append) || rm -f $@
 847
 848 cfg: u-boot.cfg
 849
 850 quiet_cmd_cfgcheck = CFGCHK  $2
 851 cmd_cfgcheck = $(srctree)/scripts/check-config.sh $2 \
 852                 $(srctree)/scripts/config_whitelist.txt $(srctree)
 853
 854 all:            $(ALL-y)
 855 ifeq ($(CONFIG_DM_I2C_COMPAT)$(CONFIG_SANDBOX),y)
 856         @echo "===================== WARNING ======================"
 857         @echo "This board uses CONFIG_DM_I2C_COMPAT. Please remove"
 858         @echo "(possibly in a subsequent patch in your series)"
 859         @echo "before sending patches to the mailing list."
 860         @echo "===================================================="
 861 endif
 862         @# Check that this build does not use CONFIG options that we do not
 863         @# know about unless they are in Kconfig. All the existing CONFIG
 864         @# options are whitelisted, so new ones should not be added.
 865         $(call cmd,cfgcheck,u-boot.cfg)
 866
 867 PHONY += dtbs
 868 dtbs: dts/dt.dtb
 869         @:
 870 dts/dt.dtb: checkdtc u-boot
 871         $(Q)$(MAKE) $(build)=dts dtbs
 872
 873 quiet_cmd_copy = COPY    $@
 874       cmd_copy = cp $< $@
 875
 876 ifeq ($(CONFIG_FIT_EMBED),y)
 877
 878 fit-dtb.blob: dts/dt.dtb FORCE
 879         $(call if_changed,mkimage)
 880
 881 MKIMAGEFLAGS_fit-dtb.blob = -f auto -A $(ARCH) -T firmware -C none -O u-boot \
 882         -a 0 -e 0 -E \
 883         $(patsubst %,-b arch/$(ARCH)/dts/%.dtb,$(subst ",,$(CONFIG_OF_LIST))) -d /dev/null
 884
 885 u-boot-fit-dtb.bin: u-boot-nodtb.bin fit-dtb.blob
 886         $(call if_changed,cat)
 887
 888 u-boot.bin: u-boot-fit-dtb.bin FORCE
 889         $(call if_changed,copy)
 890 else ifeq ($(CONFIG_OF_SEPARATE),y)
 891 u-boot-dtb.bin: u-boot-nodtb.bin dts/dt.dtb FORCE
 892         $(call if_changed,cat)
 893
 894 u-boot.bin: u-boot-dtb.bin FORCE
 895         $(call if_changed,copy)
 896 else
 897 u-boot.bin: u-boot-nodtb.bin FORCE
 898         $(call if_changed,copy)
 899 endif
 900
 901 %.imx: %.bin
 902         $(Q)$(MAKE) $(build)=arch/arm/imx-common $@
 903
 904 %.vyb: %.imx
 905         $(Q)$(MAKE) $(build)=arch/arm/cpu/armv7/vf610 $@
 906
 907 quiet_cmd_copy = COPY    $@
 908       cmd_copy = cp $< $@
 909
 910 u-boot.dtb: dts/dt.dtb
 911         $(call cmd,copy)
 912
 913 OBJCOPYFLAGS_u-boot.hex := -O ihex
 914
 915 OBJCOPYFLAGS_u-boot.srec := -O srec
 916
 917 u-boot.hex u-boot.srec: u-boot FORCE
 918         $(call if_changed,objcopy)
 919
 920 OBJCOPYFLAGS_u-boot-nodtb.bin := -O binary \
 921                 $(if $(CONFIG_X86_16BIT_INIT),-R .start16 -R .resetvec)
 922
 923 binary_size_check: u-boot-nodtb.bin FORCE
 924         @file_size=$(shell wc -c u-boot-nodtb.bin | awk '{print $$1}') ; \
 925         map_size=$(shell cat u-boot.map | \
 926                 awk '/_image_copy_start/ {start = $$1} /_image_binary_end/ {end = $$1} END {if (start != "" && end != "") print "ibase=16; " toupper(end) " - " toupper(start)}' \
 927                 | sed 's/0X//g' \
 928                 | bc); \
 929         if [ "" != "$$map_size" ]; then \
 930                 if test $$map_size -ne $$file_size; then \
 931                         echo "u-boot.map shows a binary size of $$map_size" >&2 ; \
 932                         echo "  but u-boot-nodtb.bin shows $$file_size" >&2 ; \
 933                         exit 1; \
 934                 fi \
 935         fi
 936
 937 u-boot-nodtb.bin: u-boot FORCE
 938         $(call if_changed,objcopy)
 939         $(call DO_STATIC_RELA,$<,$@,$(CONFIG_SYS_TEXT_BASE))
 940         $(BOARD_SIZE_CHECK)
 941
 942 u-boot.ldr:     u-boot
 943                 $(CREATE_LDR_ENV)
 944                 $(LDR) -T $(CONFIG_CPU) -c $@ $< $(LDR_FLAGS)
 945                 $(BOARD_SIZE_CHECK)
 946
 947 # binman
 948 # ---------------------------------------------------------------------------
 949 quiet_cmd_binman = BINMAN  $@
 950 cmd_binman = $(srctree)/tools/binman/binman -d u-boot.dtb -O . \
 951                 -I . -I $(srctree)/board/$(BOARDDIR) $<
 952
 953 OBJCOPYFLAGS_u-boot.ldr.hex := -I binary -O ihex
 954
 955 OBJCOPYFLAGS_u-boot.ldr.srec := -I binary -O srec
 956
 957 u-boot.ldr.hex u-boot.ldr.srec: u-boot.ldr FORCE
 958         $(call if_changed,objcopy)
 959
 960 #
 961 # U-Boot entry point, needed for booting of full-blown U-Boot
 962 # from the SPL U-Boot version.
 963 #
 964 ifndef CONFIG_SYS_UBOOT_START
 965 CONFIG_SYS_UBOOT_START := 0
 966 endif
 967
 968 # Create a file containing the configuration options the image was built with
 969 quiet_cmd_cpp_cfg = CFG     $@
 970 cmd_cpp_cfg = $(CPP) -Wp,-MD,$(depfile) $(cpp_flags) $(LDPPFLAGS) -ansi \
 971         -DDO_DEPS_ONLY -D__ASSEMBLY__ -x assembler-with-cpp -P -dM -E -o $@ $<
 972
 973 # Boards with more complex image requirments can provide an .its source file
 974 # or a generator script
 975 ifneq ($(CONFIG_SPL_FIT_SOURCE),"")
 976 U_BOOT_ITS = $(subst ",,$(CONFIG_SPL_FIT_SOURCE))
 977 else
 978 ifneq ($(CONFIG_SPL_FIT_GENERATOR),"")
 979 U_BOOT_ITS := u-boot.its
 980 $(U_BOOT_ITS): FORCE
 981         $(srctree)/$(CONFIG_SPL_FIT_GENERATOR) \
 982         $(patsubst %,arch/$(ARCH)/dts/%.dtb,$(subst ",,$(CONFIG_OF_LIST))) > $@
 983 endif
 984 endif
 985
 986 ifdef CONFIG_SPL_LOAD_FIT
 987 MKIMAGEFLAGS_u-boot.img = -f auto -A $(ARCH) -T firmware -C none -O u-boot \
 988         -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \
 989         -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board" -E \
 990         $(patsubst %,-b arch/$(ARCH)/dts/%.dtb,$(subst ",,$(CONFIG_OF_LIST)))
 991 else
 992 MKIMAGEFLAGS_u-boot.img = -A $(ARCH) -T firmware -C none -O u-boot \
 993         -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \
 994         -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board"
 995 MKIMAGEFLAGS_u-boot-ivt.img = -A $(ARCH) -T firmware_ivt -C none -O u-boot \
 996         -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \
 997         -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board"
 998 u-boot-ivt.img: MKIMAGEOUTPUT = u-boot-ivt.img.log
 999 CLEAN_FILES += u-boot-ivt.img.log u-boot-dtb.imx.log SPL.log u-boot.imx.log
1000 endif
1001
1002 MKIMAGEFLAGS_u-boot-dtb.img = $(MKIMAGEFLAGS_u-boot.img)
1003
1004 MKIMAGEFLAGS_u-boot.kwb = -n $(srctree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%) \
1005         -T kwbimage -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE)
1006
1007 MKIMAGEFLAGS_u-boot-spl.kwb = -n $(srctree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%) \
1008         -T kwbimage -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE) \
1009         $(if $(KEYDIR),-k $(KEYDIR))
1010
1011 MKIMAGEFLAGS_u-boot.pbl = -n $(srctree)/$(CONFIG_SYS_FSL_PBL_RCW:"%"=%) \
1012                 -R $(srctree)/$(CONFIG_SYS_FSL_PBL_PBI:"%"=%) -T pblimage
1013
1014 u-boot-dtb.img u-boot.img u-boot.kwb u-boot.pbl u-boot-ivt.img: \
1015                 $(if $(CONFIG_SPL_LOAD_FIT),u-boot-nodtb.bin dts/dt.dtb,u-boot.bin) FORCE
1016         $(call if_changed,mkimage)
1017
1018 u-boot.itb: u-boot-nodtb.bin dts/dt.dtb $(U_BOOT_ITS) FORCE
1019         $(call if_changed,mkfitimage)
1020
1021 u-boot-spl.kwb: u-boot.img spl/u-boot-spl.bin FORCE
1022         $(call if_changed,mkimage)
1023
1024 u-boot.sha1:    u-boot.bin
1025                 tools/ubsha1 u-boot.bin
1026
1027 u-boot.dis:     u-boot
1028                 $(OBJDUMP) -d $< > $@
1029
1030 ifdef CONFIG_TPL
1031 SPL_PAYLOAD := tpl/u-boot-with-tpl.bin
1032 else
1033 SPL_PAYLOAD := u-boot.bin
1034 endif
1035
1036 OBJCOPYFLAGS_u-boot-with-spl.bin = -I binary -O binary \
1037                                    --pad-to=$(CONFIG_SPL_PAD_TO)
1038 u-boot-with-spl.bin: spl/u-boot-spl.bin $(SPL_PAYLOAD) FORCE
1039         $(call if_changed,pad_cat)
1040
1041 MKIMAGEFLAGS_lpc32xx-spl.img = -T lpc32xximage -a $(CONFIG_SPL_TEXT_BASE)
1042
1043 lpc32xx-spl.img: spl/u-boot-spl.bin FORCE
1044         $(call if_changed,mkimage)
1045
1046 OBJCOPYFLAGS_lpc32xx-boot-0.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO)
1047
1048 lpc32xx-boot-0.bin: lpc32xx-spl.img FORCE
1049         $(call if_changed,objcopy)
1050
1051 OBJCOPYFLAGS_lpc32xx-boot-1.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO)
1052
1053 lpc32xx-boot-1.bin: lpc32xx-spl.img FORCE
1054         $(call if_changed,objcopy)
1055
1056 lpc32xx-full.bin: lpc32xx-boot-0.bin lpc32xx-boot-1.bin u-boot.img FORCE
1057         $(call if_changed,cat)
1058
1059 CLEAN_FILES += lpc32xx-*
1060
1061 OBJCOPYFLAGS_u-boot-with-tpl.bin = -I binary -O binary \
1062                                    --pad-to=$(CONFIG_TPL_PAD_TO)
1063 tpl/u-boot-with-tpl.bin: tpl/u-boot-tpl.bin u-boot.bin FORCE
1064         $(call if_changed,pad_cat)
1065
1066 SPL: spl/u-boot-spl.bin FORCE
1067         $(Q)$(MAKE) $(build)=arch/arm/imx-common $@
1068
1069 u-boot-with-spl.imx u-boot-with-nand-spl.imx: SPL u-boot.bin FORCE
1070         $(Q)$(MAKE) $(build)=arch/arm/imx-common $@
1071
1072 MKIMAGEFLAGS_u-boot.ubl = -n $(UBL_CONFIG) -T ublimage -e $(CONFIG_SYS_TEXT_BASE)
1073
1074 u-boot.ubl: u-boot-with-spl.bin FORCE
1075         $(call if_changed,mkimage)
1076
1077 MKIMAGEFLAGS_u-boot-spl.ais = -s -n $(if $(CONFIG_AIS_CONFIG_FILE), \
1078         $(srctree)/$(CONFIG_AIS_CONFIG_FILE:"%"=%),"/dev/null") \
1079         -T aisimage -e $(CONFIG_SPL_TEXT_BASE)
1080 spl/u-boot-spl.ais: spl/u-boot-spl.bin FORCE
1081         $(call if_changed,mkimage)
1082
1083 OBJCOPYFLAGS_u-boot.ais = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO)
1084 u-boot.ais: spl/u-boot-spl.ais u-boot.img FORCE
1085         $(call if_changed,pad_cat)
1086
1087 u-boot-signed.sb: u-boot.bin spl/u-boot-spl.bin
1088         $(Q)$(MAKE) $(build)=arch/arm/cpu/arm926ejs/mxs u-boot-signed.sb
1089 u-boot.sb: u-boot.bin spl/u-boot-spl.bin
1090         $(Q)$(MAKE) $(build)=arch/arm/cpu/arm926ejs/mxs u-boot.sb
1091
1092 # On x600 (SPEAr600) U-Boot is appended to U-Boot SPL.
1093 # Both images are created using mkimage (crc etc), so that the ROM
1094 # bootloader can check its integrity. Padding needs to be done to the
1095 # SPL image (with mkimage header) and not the binary. Otherwise the resulting image
1096 # which is loaded/copied by the ROM bootloader to SRAM doesn't fit.
1097 # The resulting image containing both U-Boot images is called u-boot.spr
1098 MKIMAGEFLAGS_u-boot-spl.img = -A $(ARCH) -T firmware -C none \
1099         -a $(CONFIG_SPL_TEXT_BASE) -e $(CONFIG_SPL_TEXT_BASE) -n XLOADER
1100 spl/u-boot-spl.img: spl/u-boot-spl.bin FORCE
1101         $(call if_changed,mkimage)
1102
1103 OBJCOPYFLAGS_u-boot.spr = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) \
1104                           --gap-fill=0xff
1105 u-boot.spr: spl/u-boot-spl.img u-boot.img FORCE
1106         $(call if_changed,pad_cat)
1107
1108 ifneq ($(CONFIG_ARCH_SOCFPGA),)
1109 quiet_cmd_socboot = SOCBOOT $@
1110 cmd_socboot = cat       spl/u-boot-spl.sfp spl/u-boot-spl.sfp   \
1111                         spl/u-boot-spl.sfp spl/u-boot-spl.sfp   \
1112                         u-boot.img > $@ || rm -f $@
1113 u-boot-with-spl.sfp: spl/u-boot-spl.sfp u-boot.img FORCE
1114         $(call if_changed,socboot)
1115 endif
1116
1117 # x86 uses a large ROM. We fill it with 0xff, put the 16-bit stuff (including
1118 # reset vector) at the top, Intel ME descriptor at the bottom, and U-Boot in
1119 # the middle. This is handled by binman based on an image description in the
1120 # board's device tree.
1121 ifneq ($(CONFIG_X86_RESET_VECTOR),)
1122 rom: u-boot.rom FORCE
1123
1124 refcode.bin: $(srctree)/board/$(BOARDDIR)/refcode.bin FORCE
1125         $(call if_changed,copy)
1126
1127 quiet_cmd_ldr = LD      $@
1128 cmd_ldr = $(LD) $(LDFLAGS_$(@F)) \
1129                $(filter-out FORCE,$^) -o $@
1130
1131 u-boot.rom: u-boot-x86-16bit.bin u-boot.bin \
1132                 $(if $(CONFIG_SPL_X86_16BIT_INIT),spl/u-boot-spl.bin) \
1133                 $(if $(CONFIG_HAVE_REFCODE),refcode.bin) checkbinman FORCE
1134         $(call if_changed,binman)
1135
1136 OBJCOPYFLAGS_u-boot-x86-16bit.bin := -O binary -j .start16 -j .resetvec
1137 u-boot-x86-16bit.bin: u-boot FORCE
1138         $(call if_changed,objcopy)
1139 endif
1140
1141 ifneq ($(CONFIG_ARCH_SUNXI),)
1142 u-boot-sunxi-with-spl.bin: spl/sunxi-spl.bin u-boot.img u-boot.dtb \
1143                 checkbinman FORCE
1144         $(call if_changed,binman)
1145 endif
1146
1147 ifneq ($(CONFIG_TEGRA),)
1148 OBJCOPYFLAGS_u-boot-nodtb-tegra.bin = -O binary --pad-to=$(CONFIG_SYS_TEXT_BASE)
1149 u-boot-nodtb-tegra.bin: spl/u-boot-spl u-boot-nodtb.bin FORCE
1150         $(call if_changed,pad_cat)
1151
1152 OBJCOPYFLAGS_u-boot-tegra.bin = -O binary --pad-to=$(CONFIG_SYS_TEXT_BASE)
1153 u-boot-tegra.bin: spl/u-boot-spl u-boot.bin FORCE
1154         $(call if_changed,pad_cat)
1155
1156 u-boot-dtb-tegra.bin: u-boot-tegra.bin FORCE
1157         $(call if_changed,copy)
1158 endif
1159
1160 OBJCOPYFLAGS_u-boot-app.efi := $(OBJCOPYFLAGS_EFI)
1161 u-boot-app.efi: u-boot FORCE
1162         $(call if_changed,zobjcopy)
1163
1164 u-boot.bin.o: u-boot.bin FORCE
1165         $(call if_changed,efipayload)
1166
1167 u-boot-payload.lds: $(LDSCRIPT_EFI) FORCE
1168         $(call if_changed_dep,cpp_lds)
1169
1170 # Rule to link the EFI payload which contains a stub and a U-Boot binary
1171 quiet_cmd_u-boot_payload ?= LD      $@
1172       cmd_u-boot_payload ?= $(LD) $(LDFLAGS_EFI_PAYLOAD) -o $@ \
1173       -T u-boot-payload.lds arch/x86/cpu/call32.o \
1174       lib/efi/efi.o lib/efi/efi_stub.o u-boot.bin.o \
1175       $(addprefix arch/$(ARCH)/lib/,$(EFISTUB))
1176
1177 u-boot-payload: u-boot.bin.o u-boot-payload.lds FORCE
1178         $(call if_changed,u-boot_payload)
1179
1180 OBJCOPYFLAGS_u-boot-payload.efi := $(OBJCOPYFLAGS_EFI)
1181 u-boot-payload.efi: u-boot-payload FORCE
1182         $(call if_changed,zobjcopy)
1183
1184 u-boot-img.bin: spl/u-boot-spl.bin u-boot.img FORCE
1185         $(call if_changed,cat)
1186
1187 #Add a target to create boot binary having SPL binary in PBI format
1188 #concatenated with u-boot binary. It is need by PowerPC SoC having
1189 #internal SRAM <= 512KB.
1190 MKIMAGEFLAGS_u-boot-spl.pbl = -n $(srctree)/$(CONFIG_SYS_FSL_PBL_RCW:"%"=%) \
1191                 -R $(srctree)/$(CONFIG_SYS_FSL_PBL_PBI:"%"=%) -T pblimage \
1192                 -A $(ARCH) -a $(CONFIG_SPL_TEXT_BASE)
1193
1194 spl/u-boot-spl.pbl: spl/u-boot-spl.bin FORCE
1195         $(call if_changed,mkimage)
1196
1197 ifeq ($(ARCH),arm)
1198 UBOOT_BINLOAD := u-boot.img
1199 else
1200 UBOOT_BINLOAD := u-boot.bin
1201 endif
1202
1203 OBJCOPYFLAGS_u-boot-with-spl-pbl.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) \
1204                           --gap-fill=0xff
1205
1206 u-boot-with-spl-pbl.bin: spl/u-boot-spl.pbl $(UBOOT_BINLOAD) FORCE
1207         $(call if_changed,pad_cat)
1208
1209 # PPC4xx needs the SPL at the end of the image, since the reset vector
1210 # is located at 0xfffffffc. So we can't use the "u-boot-img.bin" target
1211 # and need to introduce a new build target with the full blown U-Boot
1212 # at the start padded up to the start of the SPL image. And then concat
1213 # the SPL image to the end.
1214
1215 OBJCOPYFLAGS_u-boot-img-spl-at-end.bin := -I binary -O binary \
1216         --pad-to=$(CONFIG_UBOOT_PAD_TO) --gap-fill=0xff
1217 u-boot-img-spl-at-end.bin: u-boot.img spl/u-boot-spl.bin FORCE
1218         $(call if_changed,pad_cat)
1219
1220 # Create a new ELF from a raw binary file.
1221 ifndef PLATFORM_ELFENTRY
1222   PLATFORM_ELFENTRY = "_start"
1223 endif
1224 quiet_cmd_u-boot-elf ?= LD      $@
1225         cmd_u-boot-elf ?= $(LD) u-boot-elf.o -o $@ \
1226         --defsym=$(PLATFORM_ELFENTRY)=$(CONFIG_SYS_TEXT_BASE) \
1227         -Ttext=$(CONFIG_SYS_TEXT_BASE)
1228 u-boot.elf: u-boot.bin
1229         $(Q)$(OBJCOPY) -I binary $(PLATFORM_ELFFLAGS) $< u-boot-elf.o
1230         $(call if_changed,u-boot-elf)
1231
1232 # Rule to link u-boot
1233 # May be overridden by arch/$(ARCH)/config.mk
1234 quiet_cmd_u-boot__ ?= LD      $@
1235       cmd_u-boot__ ?= $(LD) $(LDFLAGS) $(LDFLAGS_u-boot) -o $@ \
1236       -T u-boot.lds $(u-boot-init)                             \
1237       --start-group $(u-boot-main) --end-group                 \
1238       $(PLATFORM_LIBS) -Map u-boot.map
1239
1240 quiet_cmd_smap = GEN     common/system_map.o
1241 cmd_smap = \
1242         smap=`$(call SYSTEM_MAP,u-boot) | \
1243                 awk '$$2 ~ /[tTwW]/ {printf $$1 $$3 "\\\\000"}'` ; \
1244         $(CC) $(c_flags) -DSYSTEM_MAP="\"$${smap}\"" \
1245                 -c $(srctree)/common/system_map.c -o common/system_map.o
1246
1247 u-boot: $(u-boot-init) $(u-boot-main) u-boot.lds FORCE
1248         $(call if_changed,u-boot__)
1249 ifeq ($(CONFIG_KALLSYMS),y)
1250         $(call cmd,smap)
1251         $(call cmd,u-boot__) common/system_map.o
1252 endif
1253
1254 quiet_cmd_sym ?= SYM     $@
1255       cmd_sym ?= $(OBJDUMP) -t $< > $@
1256 u-boot.sym: u-boot FORCE
1257         $(call if_changed,sym)
1258
1259 # The actual objects are generated when descending,
1260 # make sure no implicit rule kicks in
1261 $(sort $(u-boot-init) $(u-boot-main)): $(u-boot-dirs) ;
1262
1263 # Handle descending into subdirectories listed in $(vmlinux-dirs)
1264 # Preset locale variables to speed up the build process. Limit locale
1265 # tweaks to this spot to avoid wrong language settings when running
1266 # make menuconfig etc.
1267 # Error messages still appears in the original language
1268
1269 PHONY += $(u-boot-dirs)
1270 $(u-boot-dirs): prepare scripts
1271         $(Q)$(MAKE) $(build)=$@
1272
1273 tools: prepare
1274 # The "tools" are needed early
1275 $(filter-out tools, $(u-boot-dirs)): tools
1276 # The "examples" conditionally depend on U-Boot (say, when USE_PRIVATE_LIBGCC
1277 # is "yes"), so compile examples after U-Boot is compiled.
1278 examples: $(filter-out examples, $(u-boot-dirs))
1279
1280 define filechk_uboot.release
1281         echo "$(UBOOTVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))"
1282 endef
1283
1284 # Store (new) UBOOTRELEASE string in include/config/uboot.release
1285 include/config/uboot.release: include/config/auto.conf FORCE
1286         $(call filechk,uboot.release)
1287
1288
1289 # Things we need to do before we recursively start building the kernel
1290 # or the modules are listed in "prepare".
1291 # A multi level approach is used. prepareN is processed before prepareN-1.
1292 # archprepare is used in arch Makefiles and when processed asm symlink,
1293 # version.h and scripts_basic is processed / created.
1294
1295 # Listed in dependency order
1296 PHONY += prepare archprepare prepare0 prepare1 prepare2 prepare3
1297
1298 # prepare3 is used to check if we are building in a separate output directory,
1299 # and if so do:
1300 # 1) Check that make has not been executed in the kernel src $(srctree)
1301 prepare3: include/config/uboot.release
1302 ifneq ($(KBUILD_SRC),)
1303         @$(kecho) '  Using $(srctree) as source for U-Boot'
1304         $(Q)if [ -f $(srctree)/.config -o -d $(srctree)/include/config ]; then \
1305                 echo >&2 "  $(srctree) is not clean, please run 'make mrproper'"; \
1306                 echo >&2 "  in the '$(srctree)' directory.";\
1307                 /bin/false; \
1308         fi;
1309 endif
1310
1311 # prepare2 creates a makefile if using a separate output directory
1312 prepare2: prepare3 outputmakefile
1313
1314 prepare1: prepare2 $(version_h) $(timestamp_h) \
1315                    include/config/auto.conf
1316 ifeq ($(wildcard $(LDSCRIPT)),)
1317         @echo >&2 "  Could not find linker script."
1318         @/bin/false
1319 endif
1320
1321 archprepare: prepare1 scripts_basic
1322
1323 prepare0: archprepare FORCE
1324         $(Q)$(MAKE) $(build)=.
1325
1326 # All the preparing..
1327 prepare: prepare0
1328
1329 # Generate some files
1330 # ---------------------------------------------------------------------------
1331
1332 define filechk_version.h
1333         (echo \#define PLAIN_VERSION \"$(UBOOTRELEASE)\"; \
1334         echo \#define U_BOOT_VERSION \"U-Boot \" PLAIN_VERSION; \
1335         echo \#define CC_VERSION_STRING \"$$(LC_ALL=C $(CC) --version | head -n 1)\"; \
1336         echo \#define LD_VERSION_STRING \"$$(LC_ALL=C $(LD) --version | head -n 1)\"; )
1337 endef
1338
1339 # The SOURCE_DATE_EPOCH mechanism requires a date that behaves like GNU date.
1340 # The BSD date on the other hand behaves different and would produce errors
1341 # with the misused '-d' switch.  Respect that and search a working date with
1342 # well known pre- and suffixes for the GNU variant of date.
1343 define filechk_timestamp.h
1344         (if test -n "$${SOURCE_DATE_EPOCH}"; then \
1345                 SOURCE_DATE="@$${SOURCE_DATE_EPOCH}"; \
1346                 DATE=""; \
1347                 for date in gdate date.gnu date; do \
1348                         $${date} -u -d "$${SOURCE_DATE}" >/dev/null 2>&1 && DATE="$${date}"; \
1349                 done; \
1350                 if test -n "$${DATE}"; then \
1351                         LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_DATE "%b %d %C%y"'; \
1352                         LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_TIME "%T"'; \
1353                         LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_TZ "%z"'; \
1354                         LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_DMI_DATE "%m/%d/%Y"'; \
1355                 else \
1356                         return 42; \
1357                 fi; \
1358         else \
1359                 LC_ALL=C date +'#define U_BOOT_DATE "%b %d %C%y"'; \
1360                 LC_ALL=C date +'#define U_BOOT_TIME "%T"'; \
1361                 LC_ALL=C date +'#define U_BOOT_TZ "%z"'; \
1362                 LC_ALL=C date +'#define U_BOOT_DMI_DATE "%m/%d/%Y"'; \
1363         fi)
1364 endef
1365
1366 $(version_h): include/config/uboot.release FORCE
1367         $(call filechk,version.h)
1368
1369 $(timestamp_h): $(srctree)/Makefile FORCE
1370         $(call filechk,timestamp.h)
1371
1372 checkbinman: tools
1373         @if ! ( echo 'import libfdt' | ( PYTHONPATH=tools python )); then \
1374                 echo >&2; \
1375                 echo >&2 '*** binman needs the Python libfdt library.'; \
1376                 echo >&2 '*** Either install it on your system, or try:'; \
1377                 echo >&2 '***'; \
1378                 echo >&2 '*** sudo apt-get install swig libpython-dev'; \
1379                 echo >&2 '***'; \
1380                 echo >&2 '*** to have U-Boot build its own version.'; \
1381                 false; \
1382         fi
1383
1384 # ---------------------------------------------------------------------------
1385 quiet_cmd_cpp_lds = LDS     $@
1386 cmd_cpp_lds = $(CPP) -Wp,-MD,$(depfile) $(cpp_flags) $(LDPPFLAGS) \
1387                 -D__ASSEMBLY__ -x assembler-with-cpp -P -o $@ $<
1388
1389 u-boot.lds: $(LDSCRIPT) prepare FORCE
1390         $(call if_changed_dep,cpp_lds)
1391
1392 spl/u-boot-spl.bin: spl/u-boot-spl
1393         @:
1394 spl/u-boot-spl: tools prepare \
1395                 $(if $(CONFIG_OF_SEPARATE)$(CONFIG_SPL_OF_PLATDATA),dts/dt.dtb)
1396         $(Q)$(MAKE) obj=spl -f $(srctree)/scripts/Makefile.spl all
1397
1398 spl/sunxi-spl.bin: spl/u-boot-spl
1399         @:
1400
1401 spl/sunxi-spl-with-ecc.bin: spl/sunxi-spl.bin
1402         @:
1403
1404 spl/u-boot-spl.sfp: spl/u-boot-spl
1405         @:
1406
1407 spl/boot.bin: spl/u-boot-spl
1408         @:
1409
1410 tpl/u-boot-tpl.bin: tools prepare \
1411                 $(if $(CONFIG_OF_SEPARATE)$(CONFIG_SPL_OF_PLATDATA),dts/dt.dtb)
1412         $(Q)$(MAKE) obj=tpl -f $(srctree)/scripts/Makefile.spl all
1413
1414 TAG_SUBDIRS := $(patsubst %,$(srctree)/%,$(u-boot-dirs) include)
1415
1416 FIND := find
1417 FINDFLAGS := -L
1418
1419 tags ctags:
1420                 ctags -w -o ctags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \
1421                                                 -name '*.[chS]' -print`
1422                 ln -s ctags tags
1423
1424 etags:
1425                 etags -a -o etags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \
1426                                                 -name '*.[chS]' -print`
1427 cscope:
1428                 $(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) -name '*.[chS]' -print > \
1429                                                 cscope.files
1430                 cscope -b -q -k
1431
1432 SYSTEM_MAP = \
1433                 $(NM) $1 | \
1434                 grep -v '\(compiled\)\|\(\.o$$\)\|\( [aUw] \)\|\(\.\.ng$$\)\|\(LASH[RL]DI\)' | \
1435                 LC_ALL=C sort
1436 System.map:     u-boot
1437                 @$(call SYSTEM_MAP,$<) > $@
1438
1439 checkdtc:
1440         @if test $(call dtc-version) -lt 0104; then \
1441                 echo '*** Your dtc is too old, please upgrade to dtc 1.4 or newer'; \
1442                 false; \
1443         fi
1444
1445 #########################################################################
1446
1447 # ARM relocations should all be R_ARM_RELATIVE (32-bit) or
1448 # R_AARCH64_RELATIVE (64-bit).
1449 checkarmreloc: u-boot
1450         @RELOC="`$(CROSS_COMPILE)readelf -r -W $< | cut -d ' ' -f 4 | \
1451                 grep R_A | sort -u`"; \
1452         if test "$$RELOC" != "R_ARM_RELATIVE" -a \
1453                  "$$RELOC" != "R_AARCH64_RELATIVE"; then \
1454                 echo "$< contains unexpected relocations: $$RELOC"; \
1455                 false; \
1456         fi
1457
1458 env: scripts_basic
1459         $(Q)$(MAKE) $(build)=tools/$@
1460
1461 tools-only: scripts_basic $(version_h) $(timestamp_h)
1462         $(Q)$(MAKE) $(build)=tools
1463
1464 tools-all: export HOST_TOOLS_ALL=y
1465 tools-all: env tools ;
1466
1467 cross_tools: export CROSS_BUILD_TOOLS=y
1468 cross_tools: tools ;
1469
1470 .PHONY : CHANGELOG
1471 CHANGELOG:
1472         git log --no-merges U-Boot-1_1_5.. | \
1473         unexpand -a | sed -e 's/\s\s*$$//' > $@
1474
1475 #########################################################################
1476
1477 ###
1478 # Cleaning is done on three levels.
1479 # make clean     Delete most generated files
1480 #                Leave enough to build external modules
1481 # make mrproper  Delete the current configuration, and all generated files
1482 # make distclean Remove editor backup files, patch leftover files and the like
1483
1484 # Directories & files removed with 'make clean'
1485 CLEAN_DIRS  += $(MODVERDIR) \
1486                $(foreach d, spl tpl, $(patsubst %,$d/%, \
1487                         $(filter-out include, $(shell ls -1 $d 2>/dev/null))))
1488
1489 CLEAN_FILES += include/bmp_logo.h include/bmp_logo_data.h \
1490                boot* u-boot* MLO* SPL System.map fit-dtb.blob
1491
1492 # Directories & files removed with 'make mrproper'
1493 MRPROPER_DIRS  += include/config include/generated spl tpl \
1494                   .tmp_objdiff
1495 MRPROPER_FILES += .config .config.old include/autoconf.mk* include/config.h \
1496                   ctags etags tags TAGS cscope* GPATH GTAGS GRTAGS GSYMS
1497
1498 # clean - Delete most, but leave enough to build external modules
1499 #
1500 clean: rm-dirs  := $(CLEAN_DIRS)
1501 clean: rm-files := $(CLEAN_FILES)
1502
1503 clean-dirs      := $(foreach f,$(u-boot-alldirs),$(if $(wildcard $(srctree)/$f/Makefile),$f))
1504
1505 clean-dirs      := $(addprefix _clean_, $(clean-dirs) doc/DocBook)
1506
1507 PHONY += $(clean-dirs) clean archclean
1508 $(clean-dirs):
1509         $(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$@)
1510
1511 # TODO: Do not use *.cfgtmp
1512 clean: $(clean-dirs)
1513         $(call cmd,rmdirs)
1514         $(call cmd,rmfiles)
1515         @find $(if $(KBUILD_EXTMOD), $(KBUILD_EXTMOD), .) $(RCS_FIND_IGNORE) \
1516                 \( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \
1517                 -o -name '*.ko.*' -o -name '*.su' -o -name '*.cfgtmp' \
1518                 -o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \
1519                 -o -name '*.symtypes' -o -name 'modules.order' \
1520                 -o -name modules.builtin -o -name '.tmp_*.o.*' \
1521                 -o -name 'dsdt.aml' -o -name 'dsdt.asl.tmp' -o -name 'dsdt.c' \
1522                 -o -name '*.gcno' \) -type f -print | xargs rm -f
1523
1524 # mrproper - Delete all generated files, including .config
1525 #
1526 mrproper: rm-dirs  := $(wildcard $(MRPROPER_DIRS))
1527 mrproper: rm-files := $(wildcard $(MRPROPER_FILES))
1528 mrproper-dirs      := $(addprefix _mrproper_,scripts)
1529
1530 PHONY += $(mrproper-dirs) mrproper archmrproper
1531 $(mrproper-dirs):
1532         $(Q)$(MAKE) $(clean)=$(patsubst _mrproper_%,%,$@)
1533
1534 mrproper: clean $(mrproper-dirs)
1535         $(call cmd,rmdirs)
1536         $(call cmd,rmfiles)
1537         @rm -f arch/*/include/asm/arch
1538
1539 # distclean
1540 #
1541 PHONY += distclean
1542
1543 distclean: mrproper
1544         @find $(srctree) $(RCS_FIND_IGNORE) \
1545                 \( -name '*.orig' -o -name '*.rej' -o -name '*~' \
1546                 -o -name '*.bak' -o -name '#*#' -o -name '.*.orig' \
1547                 -o -name '.*.rej' -o -name '*%' -o -name 'core' \
1548                 -o -name '*.pyc' \) \
1549                 -type f -print | xargs rm -f
1550         @rm -f boards.cfg
1551
1552 backup:
1553         F=`basename $(srctree)` ; cd .. ; \
1554         gtar --force-local -zcvf `LC_ALL=C date "+$$F-%Y-%m-%d-%T.tar.gz"` $$F
1555
1556 help:
1557         @echo  'Cleaning targets:'
1558         @echo  '  clean           - Remove most generated files but keep the config'
1559         @echo  '  mrproper        - Remove all generated files + config + various backup files'
1560         @echo  '  distclean       - mrproper + remove editor backup and patch files'
1561         @echo  ''
1562         @echo  'Configuration targets:'
1563         @$(MAKE) -f $(srctree)/scripts/kconfig/Makefile help
1564         @echo  ''
1565         @echo  'Other generic targets:'
1566         @echo  '  all             - Build all necessary images depending on configuration'
1567         @echo  '  tests           - Build U-Boot for sandbox and run tests'
1568         @echo  '* u-boot          - Build the bare u-boot'
1569         @echo  '  dir/            - Build all files in dir and below'
1570         @echo  '  dir/file.[oisS] - Build specified target only'
1571         @echo  '  dir/file.lst    - Build specified mixed source/assembly target only'
1572         @echo  '                    (requires a recent binutils and recent build (System.map))'
1573         @echo  '  tags/ctags      - Generate ctags file for editors'
1574         @echo  '  etags           - Generate etags file for editors'
1575         @echo  '  cscope          - Generate cscope index'
1576         @echo  '  ubootrelease    - Output the release version string (use with make -s)'
1577         @echo  '  ubootversion    - Output the version stored in Makefile (use with make -s)'
1578         @echo  "  cfg             - Don't build, just create the .cfg files"
1579         @echo  ''
1580         @echo  'Static analysers'
1581         @echo  '  checkstack      - Generate a list of stack hogs'
1582         @echo  ''
1583         @echo  'Documentation targets:'
1584         @$(MAKE) -f $(srctree)/doc/DocBook/Makefile dochelp
1585         @echo  ''
1586         @echo  '  make V=0|1 [targets] 0 => quiet build (default), 1 => verbose build'
1587         @echo  '  make V=2   [targets] 2 => give reason for rebuild of target'
1588         @echo  '  make O=dir [targets] Locate all output files in "dir", including .config'
1589         @echo  '  make C=1   [targets] Check all c source with $$CHECK (sparse by default)'
1590         @echo  '  make C=2   [targets] Force check of all c source with $$CHECK'
1591         @echo  '  make RECORDMCOUNT_WARN=1 [targets] Warn about ignored mcount sections'
1592         @echo  '  make W=n   [targets] Enable extra gcc checks, n=1,2,3 where'
1593         @echo  '                1: warnings which may be relevant and do not occur too often'
1594         @echo  '                2: warnings which occur quite often but may still be relevant'
1595         @echo  '                3: more obscure warnings, can most likely be ignored'
1596         @echo  '                Multiple levels can be combined with W=12 or W=123'
1597         @echo  ''
1598         @echo  'Execute "make" or "make all" to build all targets marked with [*] '
1599         @echo  'For further info see the ./README file'
1600
1601 tests:
1602         $(srctree)/test/run
1603
1604 # Documentation targets
1605 # ---------------------------------------------------------------------------
1606 %docs: scripts_basic FORCE
1607         $(Q)$(MAKE) $(build)=scripts build_docproc
1608         $(Q)$(MAKE) $(build)=doc/DocBook $@
1609
1610 endif #ifeq ($(config-targets),1)
1611 endif #ifeq ($(mixed-targets),1)
1612
1613 PHONY += checkstack ubootrelease ubootversion
1614
1615 checkstack:
1616         $(OBJDUMP) -d u-boot $$(find . -name u-boot-spl) | \
1617         $(PERL) $(src)/scripts/checkstack.pl $(ARCH)
1618
1619 ubootrelease:
1620         @echo "$(UBOOTVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))"
1621
1622 ubootversion:
1623         @echo $(UBOOTVERSION)
1624
1625 # Single targets
1626 # ---------------------------------------------------------------------------
1627 # Single targets are compatible with:
1628 # - build with mixed source and output
1629 # - build with separate output dir 'make O=...'
1630 # - external modules
1631 #
1632 #  target-dir => where to store outputfile
1633 #  build-dir  => directory in kernel source tree to use
1634
1635 ifeq ($(KBUILD_EXTMOD),)
1636         build-dir  = $(patsubst %/,%,$(dir $@))
1637         target-dir = $(dir $@)
1638 else
1639         zap-slash=$(filter-out .,$(patsubst %/,%,$(dir $@)))
1640         build-dir  = $(KBUILD_EXTMOD)$(if $(zap-slash),/$(zap-slash))
1641         target-dir = $(if $(KBUILD_EXTMOD),$(dir $<),$(dir $@))
1642 endif
1643
1644 %.s: %.c prepare scripts FORCE
1645         $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1646 %.i: %.c prepare scripts FORCE
1647         $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1648 %.o: %.c prepare scripts FORCE
1649         $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1650 %.lst: %.c prepare scripts FORCE
1651         $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1652 %.s: %.S prepare scripts FORCE
1653         $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1654 %.o: %.S prepare scripts FORCE
1655         $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1656 %.symtypes: %.c prepare scripts FORCE
1657         $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1658
1659 # Modules
1660 /: prepare scripts FORCE
1661         $(cmd_crmodverdir)
1662         $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \
1663         $(build)=$(build-dir)
1664 %/: prepare scripts FORCE
1665         $(cmd_crmodverdir)
1666         $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \
1667         $(build)=$(build-dir)
1668 %.ko: prepare scripts FORCE
1669         $(cmd_crmodverdir)
1670         $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1)   \
1671         $(build)=$(build-dir) $(@:.ko=.o)
1672         $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost
1673
1674 # FIXME Should go into a make.lib or something
1675 # ===========================================================================
1676
1677 quiet_cmd_rmdirs = $(if $(wildcard $(rm-dirs)),CLEAN   $(wildcard $(rm-dirs)))
1678       cmd_rmdirs = rm -rf $(rm-dirs)
1679
1680 quiet_cmd_rmfiles = $(if $(wildcard $(rm-files)),CLEAN   $(wildcard $(rm-files)))
1681       cmd_rmfiles = rm -f $(rm-files)
1682
1683 # read all saved command lines
1684
1685 targets := $(wildcard $(sort $(targets)))
1686 cmd_files := $(wildcard .*.cmd $(foreach f,$(targets),$(dir $(f)).$(notdir $(f)).cmd))
1687
1688 ifneq ($(cmd_files),)
1689   $(cmd_files): ;       # Do not try to update included dependency files
1690   include $(cmd_files)
1691 endif
1692
1693 endif   # skip-makefile
1694
1695 PHONY += FORCE
1696 FORCE:
1697
1698 # Declare the contents of the .PHONY variable as phony.  We keep that
1699 # information in a variable so we can use it in if_changed and friends.
1700 .PHONY: $(PHONY)