Makefile

   1 # SPDX-License-Identifier: GPL-2.0+
   2
   3 VERSION = 2020
   4 PATCHLEVEL = 07
   5 SUBLEVEL =
   6 EXTRAVERSION =
   7 NAME =
   8
   9 # *DOCUMENTATION*
  10 # To see a list of typical targets execute "make help"
  11 # More info can be located in ./README
  12 # Comments in this file are targeted only to the developer, do not
  13 # expect to learn how to build the kernel reading this file.
  14
  15 # o Do not use make's built-in rules and variables
  16 #   (this increases performance and avoids hard-to-debug behaviour);
  17 # o Look for make include files relative to root of kernel src
  18 MAKEFLAGS += -rR --include-dir=$(CURDIR)
  19
  20 # Determine host architecture
  21 include include/host_arch.h
  22 MK_ARCH="${shell uname -m}"
  23 unexport HOST_ARCH
  24 ifeq ("x86_64", $(MK_ARCH))
  25   export HOST_ARCH=$(HOST_ARCH_X86_64)
  26 else ifneq (,$(findstring $(MK_ARCH), "i386" "i486" "i586" "i686"))
  27   export HOST_ARCH=$(HOST_ARCH_X86)
  28 else ifneq (,$(findstring $(MK_ARCH), "aarch64" "armv8l"))
  29   export HOST_ARCH=$(HOST_ARCH_AARCH64)
  30 else ifeq ("armv7l", $(MK_ARCH))
  31   export HOST_ARCH=$(HOST_ARCH_ARM)
  32 else ifeq ("riscv32", $(MK_ARCH))
  33   export HOST_ARCH=$(HOST_ARCH_RISCV32)
  34 else ifeq ("riscv64", $(MK_ARCH))
  35   export HOST_ARCH=$(HOST_ARCH_RISCV64)
  36 endif
  37 undefine MK_ARCH
  38
  39 # Avoid funny character set dependencies
  40 unexport LC_ALL
  41 LC_COLLATE=C
  42 LC_NUMERIC=C
  43 export LC_COLLATE LC_NUMERIC
  44
  45 # Avoid interference with shell env settings
  46 unexport GREP_OPTIONS
  47
  48 # We are using a recursive build, so we need to do a little thinking
  49 # to get the ordering right.
  50 #
  51 # Most importantly: sub-Makefiles should only ever modify files in
  52 # their own directory. If in some directory we have a dependency on
  53 # a file in another dir (which doesn't happen often, but it's often
  54 # unavoidable when linking the built-in.o targets which finally
  55 # turn into vmlinux), we will call a sub make in that other dir, and
  56 # after that we are sure that everything which is in that other dir
  57 # is now up to date.
  58 #
  59 # The only cases where we need to modify files which have global
  60 # effects are thus separated out and done before the recursive
  61 # descending is started. They are now explicitly listed as the
  62 # prepare rule.
  63
  64 # Beautify output
  65 # ---------------------------------------------------------------------------
  66 #
  67 # Normally, we echo the whole command before executing it. By making
  68 # that echo $($(quiet)$(cmd)), we now have the possibility to set
  69 # $(quiet) to choose other forms of output instead, e.g.
  70 #
  71 #         quiet_cmd_cc_o_c = Compiling $(RELDIR)/$@
  72 #         cmd_cc_o_c       = $(CC) $(c_flags) -c -o $@ $<
  73 #
  74 # If $(quiet) is empty, the whole command will be printed.
  75 # If it is set to "quiet_", only the short version will be printed.
  76 # If it is set to "silent_", nothing will be printed at all, since
  77 # the variable $(silent_cmd_cc_o_c) doesn't exist.
  78 #
  79 # A simple variant is to prefix commands with $(Q) - that's useful
  80 # for commands that shall be hidden in non-verbose mode.
  81 #
  82 #       $(Q)ln $@ :<
  83 #
  84 # If KBUILD_VERBOSE equals 0 then the above command will be hidden.
  85 # If KBUILD_VERBOSE equals 1 then the above command is displayed.
  86 #
  87 # To put more focus on warnings, be less verbose as default
  88 # Use 'make V=1' to see the full commands
  89
  90 ifeq ("$(origin V)", "command line")
  91   KBUILD_VERBOSE = $(V)
  92 endif
  93 ifndef KBUILD_VERBOSE
  94   KBUILD_VERBOSE = 0
  95 endif
  96
  97 ifeq ($(KBUILD_VERBOSE),1)
  98   quiet =
  99   Q =
 100 else
 101   quiet=quiet_
 102   Q = @
 103 endif
 104
 105 # If the user is running make -s (silent mode), suppress echoing of
 106 # commands
 107
 108 ifneq ($(filter 4.%,$(MAKE_VERSION)),)  # make-4
 109 ifneq ($(filter %s ,$(firstword x$(MAKEFLAGS))),)
 110   quiet=silent_
 111 endif
 112 else                                    # make-3.8x
 113 ifneq ($(filter s% -s%,$(MAKEFLAGS)),)
 114   quiet=silent_
 115 endif
 116 endif
 117
 118 export quiet Q KBUILD_VERBOSE
 119
 120 # kbuild supports saving output files in a separate directory.
 121 # To locate output files in a separate directory two syntaxes are supported.
 122 # In both cases the working directory must be the root of the kernel src.
 123 # 1) O=
 124 # Use "make O=dir/to/store/output/files/"
 125 #
 126 # 2) Set KBUILD_OUTPUT
 127 # Set the environment variable KBUILD_OUTPUT to point to the directory
 128 # where the output files shall be placed.
 129 # export KBUILD_OUTPUT=dir/to/store/output/files/
 130 # make
 131 #
 132 # The O= assignment takes precedence over the KBUILD_OUTPUT environment
 133 # variable.
 134
 135 # KBUILD_SRC is set on invocation of make in OBJ directory
 136 # KBUILD_SRC is not intended to be used by the regular user (for now)
 137 ifeq ($(KBUILD_SRC),)
 138
 139 # OK, Make called in directory where kernel src resides
 140 # Do we want to locate output files in a separate directory?
 141 ifeq ("$(origin O)", "command line")
 142   KBUILD_OUTPUT := $(O)
 143 endif
 144
 145 # That's our default target when none is given on the command line
 146 PHONY := _all
 147 _all:
 148
 149 # Cancel implicit rules on top Makefile
 150 $(CURDIR)/Makefile Makefile: ;
 151
 152 ifneq ($(KBUILD_OUTPUT),)
 153 # Invoke a second make in the output directory, passing relevant variables
 154 # check that the output directory actually exists
 155 saved-output := $(KBUILD_OUTPUT)
 156 KBUILD_OUTPUT := $(shell mkdir -p $(KBUILD_OUTPUT) && cd $(KBUILD_OUTPUT) \
 157                                                                 && /bin/pwd)
 158 $(if $(KBUILD_OUTPUT),, \
 159      $(error failed to create output directory "$(saved-output)"))
 160
 161 PHONY += $(MAKECMDGOALS) sub-make
 162
 163 $(filter-out _all sub-make $(CURDIR)/Makefile, $(MAKECMDGOALS)) _all: sub-make
 164         @:
 165
 166 sub-make: FORCE
 167         $(Q)$(MAKE) -C $(KBUILD_OUTPUT) KBUILD_SRC=$(CURDIR) \
 168         -f $(CURDIR)/Makefile $(filter-out _all sub-make,$(MAKECMDGOALS))
 169
 170 # Leave processing to above invocation of make
 171 skip-makefile := 1
 172 endif # ifneq ($(KBUILD_OUTPUT),)
 173 endif # ifeq ($(KBUILD_SRC),)
 174
 175 # We process the rest of the Makefile if this is the final invocation of make
 176 ifeq ($(skip-makefile),)
 177
 178 # Do not print "Entering directory ...",
 179 # but we want to display it when entering to the output directory
 180 # so that IDEs/editors are able to understand relative filenames.
 181 MAKEFLAGS += --no-print-directory
 182
 183 # Call a source code checker (by default, "sparse") as part of the
 184 # C compilation.
 185 #
 186 # Use 'make C=1' to enable checking of only re-compiled files.
 187 # Use 'make C=2' to enable checking of *all* source files, regardless
 188 # of whether they are re-compiled or not.
 189 #
 190 # See the file "doc/sparse.txt" for more details, including
 191 # where to get the "sparse" utility.
 192
 193 ifeq ("$(origin C)", "command line")
 194   KBUILD_CHECKSRC = $(C)
 195 endif
 196 ifndef KBUILD_CHECKSRC
 197   KBUILD_CHECKSRC = 0
 198 endif
 199
 200 # Use make M=dir to specify directory of external module to build
 201 # Old syntax make ... SUBDIRS=$PWD is still supported
 202 # Setting the environment variable KBUILD_EXTMOD take precedence
 203 ifdef SUBDIRS
 204   KBUILD_EXTMOD ?= $(SUBDIRS)
 205 endif
 206
 207 ifeq ("$(origin M)", "command line")
 208   KBUILD_EXTMOD := $(M)
 209 endif
 210
 211 # If building an external module we do not care about the all: rule
 212 # but instead _all depend on modules
 213 PHONY += all
 214 ifeq ($(KBUILD_EXTMOD),)
 215 _all: all
 216 else
 217 _all: modules
 218 endif
 219
 220 ifeq ($(KBUILD_SRC),)
 221         # building in the source tree
 222         srctree := .
 223 else
 224         ifeq ($(KBUILD_SRC)/,$(dir $(CURDIR)))
 225                 # building in a subdirectory of the source tree
 226                 srctree := ..
 227         else
 228                 srctree := $(KBUILD_SRC)
 229         endif
 230 endif
 231 objtree         := .
 232 src             := $(srctree)
 233 obj             := $(objtree)
 234
 235 VPATH           := $(srctree)$(if $(KBUILD_EXTMOD),:$(KBUILD_EXTMOD))
 236
 237 export srctree objtree VPATH
 238
 239 # Make sure CDPATH settings don't interfere
 240 unexport CDPATH
 241
 242 #########################################################################
 243
 244 HOSTARCH := $(shell uname -m | \
 245         sed -e s/i.86/x86/ \
 246             -e s/sun4u/sparc64/ \
 247             -e s/arm.*/arm/ \
 248             -e s/sa110/arm/ \
 249             -e s/ppc64/powerpc/ \
 250             -e s/ppc/powerpc/ \
 251             -e s/macppc/powerpc/\
 252             -e s/sh.*/sh/)
 253
 254 HOSTOS := $(shell uname -s | tr '[:upper:]' '[:lower:]' | \
 255             sed -e 's/\(cygwin\).*/cygwin/')
 256
 257 export  HOSTARCH HOSTOS
 258
 259 #########################################################################
 260
 261 # set default to nothing for native builds
 262 ifeq ($(HOSTARCH),$(ARCH))
 263 CROSS_COMPILE ?=
 264 endif
 265
 266 KCONFIG_CONFIG  ?= .config
 267 export KCONFIG_CONFIG
 268
 269 # SHELL used by kbuild
 270 CONFIG_SHELL := $(shell if [ -x "$$BASH" ]; then echo $$BASH; \
 271           else if [ -x /bin/bash ]; then echo /bin/bash; \
 272           else echo sh; fi ; fi)
 273
 274 HOST_LFS_CFLAGS := $(shell getconf LFS_CFLAGS 2>/dev/null)
 275 HOST_LFS_LDFLAGS := $(shell getconf LFS_LDFLAGS 2>/dev/null)
 276 HOST_LFS_LIBS := $(shell getconf LFS_LIBS 2>/dev/null)
 277
 278 HOSTCC       = cc
 279 HOSTCXX      = c++
 280 KBUILD_HOSTCFLAGS   := -Wall -Wstrict-prototypes -O2 -fomit-frame-pointer \
 281                 $(if $(CONFIG_TOOLS_DEBUG),-g) $(HOST_LFS_CFLAGS) $(HOSTCFLAGS)
 282 KBUILD_HOSTCXXFLAGS := -O2 $(HOST_LFS_CFLAGS) $(HOSTCXXFLAGS)
 283 KBUILD_HOSTLDFLAGS  := $(HOST_LFS_LDFLAGS) $(HOSTLDFLAGS)
 284 KBUILD_HOSTLDLIBS   := $(HOST_LFS_LIBS) $(HOSTLDLIBS)
 285
 286 # With the move to GCC 6, we have implicitly upgraded our language
 287 # standard to GNU11 (see https://gcc.gnu.org/gcc-5/porting_to.html).
 288 # Some Linux distributions (including RHEL7, SLES13, Debian 8) still
 289 # have older compilers as their default, so we make it explicit for
 290 # these that our host tools are GNU11 (i.e. C11 w/ GNU extensions).
 291 CSTD_FLAG := -std=gnu11
 292 ifeq ($(HOSTOS),linux)
 293 KBUILD_HOSTCFLAGS += $(CSTD_FLAG)
 294 endif
 295
 296 ifeq ($(HOSTOS),cygwin)
 297 KBUILD_HOSTCFLAGS       += -ansi
 298 endif
 299
 300 # Mac OS X / Darwin's C preprocessor is Apple specific.  It
 301 # generates numerous errors and warnings.  We want to bypass it
 302 # and use GNU C's cpp.  To do this we pass the -traditional-cpp
 303 # option to the compiler.  Note that the -traditional-cpp flag
 304 # DOES NOT have the same semantics as GNU C's flag, all it does
 305 # is invoke the GNU preprocessor in stock ANSI/ISO C fashion.
 306 #
 307 # Apple's linker is similar, thanks to the new 2 stage linking
 308 # multiple symbol definitions are treated as errors, hence the
 309 # -multiply_defined suppress option to turn off this error.
 310 #
 311 ifeq ($(HOSTOS),darwin)
 312 # get major and minor product version (e.g. '10' and '6' for Snow Leopard)
 313 DARWIN_MAJOR_VERSION    = $(shell sw_vers -productVersion | cut -f 1 -d '.')
 314 DARWIN_MINOR_VERSION    = $(shell sw_vers -productVersion | cut -f 2 -d '.')
 315
 316 os_x_before     = $(shell if [ $(DARWIN_MAJOR_VERSION) -le $(1) -a \
 317         $(DARWIN_MINOR_VERSION) -le $(2) ] ; then echo "$(3)"; else echo "$(4)"; fi ;)
 318
 319 os_x_after = $(shell if [ $(DARWIN_MAJOR_VERSION) -ge $(1) -a \
 320         $(DARWIN_MINOR_VERSION) -ge $(2) ] ; then echo "$(3)"; else echo "$(4)"; fi ;)
 321
 322 # Snow Leopards build environment has no longer restrictions as described above
 323 HOSTCC       = $(call os_x_before, 10, 5, "cc", "gcc")
 324 KBUILD_HOSTCFLAGS  += $(call os_x_before, 10, 4, "-traditional-cpp")
 325 KBUILD_HOSTLDFLAGS += $(call os_x_before, 10, 5, "-multiply_defined suppress")
 326
 327 # since Lion (10.7) ASLR is on by default, but we use linker generated lists
 328 # in some host tools which is a problem then ... so disable ASLR for these
 329 # tools
 330 KBUILD_HOSTLDFLAGS += $(call os_x_before, 10, 7, "", "-Xlinker -no_pie")
 331
 332 # macOS Mojave (10.14.X)
 333 # Undefined symbols for architecture x86_64: "_PyArg_ParseTuple"
 334 KBUILD_HOSTLDFLAGS += $(call os_x_after, 10, 14, "-lpython -dynamclib", "")
 335 endif
 336
 337 # Decide whether to build built-in, modular, or both.
 338 # Normally, just do built-in.
 339
 340 KBUILD_MODULES :=
 341 KBUILD_BUILTIN := 1
 342
 343 # If we have only "make modules", don't compile built-in objects.
 344 # When we're building modules with modversions, we need to consider
 345 # the built-in objects during the descend as well, in order to
 346 # make sure the checksums are up to date before we record them.
 347
 348 ifeq ($(MAKECMDGOALS),modules)
 349   KBUILD_BUILTIN := $(if $(CONFIG_MODVERSIONS),1)
 350 endif
 351
 352 # If we have "make <whatever> modules", compile modules
 353 # in addition to whatever we do anyway.
 354 # Just "make" or "make all" shall build modules as well
 355
 356 # U-Boot does not need modules
 357 #ifneq ($(filter all _all modules,$(MAKECMDGOALS)),)
 358 #  KBUILD_MODULES := 1
 359 #endif
 360
 361 #ifeq ($(MAKECMDGOALS),)
 362 #  KBUILD_MODULES := 1
 363 #endif
 364
 365 # Check ths size of a binary:
 366 # Args:
 367 #   $1: File to check
 368 #   #2: Size limit in bytes (decimal or 0xhex)
 369 define size_check
 370         actual=$$( wc -c $1 | awk '{print $$1}'); \
 371         limit=$$( printf "%d" $2 ); \
 372         if test $$actual -gt $$limit; then \
 373                 echo "$1 exceeds file size limit:" >&2; \
 374                 echo "  limit:  $$(printf %#x $$limit) bytes" >&2; \
 375                 echo "  actual: $$(printf %#x $$actual) bytes" >&2; \
 376                 echo "  excess: $$(printf %#x $$((actual - limit))) bytes" >&2;\
 377                 exit 1; \
 378         fi
 379 endef
 380 export size_check
 381
 382 export KBUILD_MODULES KBUILD_BUILTIN
 383 export KBUILD_CHECKSRC KBUILD_SRC KBUILD_EXTMOD
 384
 385 # We need some generic definitions (do not try to remake the file).
 386 scripts/Kbuild.include: ;
 387 include scripts/Kbuild.include
 388
 389 # Make variables (CC, etc...)
 390
 391 AS              = $(CROSS_COMPILE)as
 392 # Always use GNU ld
 393 ifneq ($(shell $(CROSS_COMPILE)ld.bfd -v 2> /dev/null),)
 394 LD              = $(CROSS_COMPILE)ld.bfd
 395 else
 396 LD              = $(CROSS_COMPILE)ld
 397 endif
 398 CC              = $(CROSS_COMPILE)gcc
 399 CPP             = $(CC) -E
 400 AR              = $(CROSS_COMPILE)ar
 401 NM              = $(CROSS_COMPILE)nm
 402 LDR             = $(CROSS_COMPILE)ldr
 403 STRIP           = $(CROSS_COMPILE)strip
 404 OBJCOPY         = $(CROSS_COMPILE)objcopy
 405 OBJDUMP         = $(CROSS_COMPILE)objdump
 406 LEX             = flex
 407 YACC            = bison
 408 AWK             = awk
 409 PERL            = perl
 410 PYTHON          ?= python
 411 PYTHON2         = python2
 412 PYTHON3         = python3
 413 DTC             ?= $(objtree)/scripts/dtc/dtc
 414 CHECK           = sparse
 415
 416 CHECKFLAGS     := -D__linux__ -Dlinux -D__STDC__ -Dunix -D__unix__ \
 417                   -Wbitwise -Wno-return-void -D__CHECK_ENDIAN__ $(CF)
 418
 419 KBUILD_CPPFLAGS := -D__KERNEL__ -D__UBOOT__
 420
 421 KBUILD_CFLAGS   := -Wall -Wstrict-prototypes \
 422                    -Wno-format-security \
 423                    -fno-builtin -ffreestanding $(CSTD_FLAG)
 424 KBUILD_CFLAGS   += -fshort-wchar -fno-strict-aliasing
 425 KBUILD_AFLAGS   := -D__ASSEMBLY__
 426 KBUILD_LDFLAGS  :=
 427
 428 ifeq ($(cc-name),clang)
 429 ifneq ($(CROSS_COMPILE),)
 430 CLANG_TARGET    := --target=$(notdir $(CROSS_COMPILE:%-=%))
 431 GCC_TOOLCHAIN_DIR := $(dir $(shell which $(LD)))
 432 CLANG_PREFIX    := --prefix=$(GCC_TOOLCHAIN_DIR)
 433 GCC_TOOLCHAIN   := $(realpath $(GCC_TOOLCHAIN_DIR)/..)
 434 endif
 435 ifneq ($(GCC_TOOLCHAIN),)
 436 CLANG_GCC_TC    := --gcc-toolchain=$(GCC_TOOLCHAIN)
 437 endif
 438 KBUILD_CFLAGS += $(CLANG_TARGET) $(CLANG_GCC_TC) $(CLANG_PREFIX)
 439 KBUILD_AFLAGS += $(CLANG_TARGET) $(CLANG_GCC_TC) $(CLANG_PREFIX)
 440 KBUILD_CFLAGS += $(call cc-option, -no-integrated-as)
 441 KBUILD_AFLAGS += $(call cc-option, -no-integrated-as)
 442 endif
 443
 444 # Don't generate position independent code
 445 KBUILD_CFLAGS   += $(call cc-option,-fno-PIE)
 446 KBUILD_AFLAGS   += $(call cc-option,-fno-PIE)
 447
 448 # Read UBOOTRELEASE from include/config/uboot.release (if it exists)
 449 UBOOTRELEASE = $(shell cat include/config/uboot.release 2> /dev/null)
 450 UBOOTVERSION = $(VERSION)$(if $(PATCHLEVEL),.$(PATCHLEVEL)$(if $(SUBLEVEL),.$(SUBLEVEL)))$(EXTRAVERSION)
 451
 452 export VERSION PATCHLEVEL SUBLEVEL UBOOTRELEASE UBOOTVERSION
 453 export ARCH CPU BOARD VENDOR SOC CPUDIR BOARDDIR
 454 export CONFIG_SHELL HOSTCC KBUILD_HOSTCFLAGS CROSS_COMPILE AS LD CC
 455 export CPP AR NM LDR STRIP OBJCOPY OBJDUMP KBUILD_HOSTLDFLAGS KBUILD_HOSTLDLIBS
 456 export MAKE LEX YACC AWK PERL PYTHON PYTHON2 PYTHON3
 457 export HOSTCXX KBUILD_HOSTCXXFLAGS CHECK CHECKFLAGS DTC DTC_FLAGS
 458
 459 export KBUILD_CPPFLAGS NOSTDINC_FLAGS UBOOTINCLUDE OBJCOPYFLAGS KBUILD_LDFLAGS
 460 export KBUILD_CFLAGS KBUILD_AFLAGS
 461
 462 export CC_VERSION_TEXT := $(shell $(CC) --version | head -n 1)
 463
 464 # When compiling out-of-tree modules, put MODVERDIR in the module
 465 # tree rather than in the kernel tree. The kernel tree might
 466 # even be read-only.
 467 export MODVERDIR := $(if $(KBUILD_EXTMOD),$(firstword $(KBUILD_EXTMOD))/).tmp_versions
 468
 469 # Files to ignore in find ... statements
 470
 471 export RCS_FIND_IGNORE := \( -name SCCS -o -name BitKeeper -o -name .svn -o    \
 472                           -name CVS -o -name .pc -o -name .hg -o -name .git \) \
 473                           -prune -o
 474 export RCS_TAR_IGNORE := --exclude SCCS --exclude BitKeeper --exclude .svn \
 475                          --exclude CVS --exclude .pc --exclude .hg --exclude .git
 476
 477 # ===========================================================================
 478 # Rules shared between *config targets and build targets
 479
 480 # Basic helpers built in scripts/
 481 PHONY += scripts_basic
 482 scripts_basic:
 483         $(Q)$(MAKE) $(build)=scripts/basic
 484         $(Q)rm -f .tmp_quiet_recordmcount
 485
 486 # To avoid any implicit rule to kick in, define an empty command.
 487 scripts/basic/%: scripts_basic ;
 488
 489 PHONY += outputmakefile
 490 # outputmakefile generates a Makefile in the output directory, if using a
 491 # separate output directory. This allows convenient use of make in the
 492 # output directory.
 493 outputmakefile:
 494 ifneq ($(KBUILD_SRC),)
 495         $(Q)ln -fsn $(srctree) source
 496         $(Q)$(CONFIG_SHELL) $(srctree)/scripts/mkmakefile \
 497             $(srctree) $(objtree) $(VERSION) $(PATCHLEVEL)
 498 endif
 499
 500 # To make sure we do not include .config for any of the *config targets
 501 # catch them early, and hand them over to scripts/kconfig/Makefile
 502 # It is allowed to specify more targets when calling make, including
 503 # mixing *config targets and build targets.
 504 # For example 'make oldconfig all'.
 505 # Detect when mixed targets is specified, and make a second invocation
 506 # of make so .config is not included in this case either (for *config).
 507
 508 version_h := include/generated/version_autogenerated.h
 509 timestamp_h := include/generated/timestamp_autogenerated.h
 510 defaultenv_h := include/generated/defaultenv_autogenerated.h
 511 dt_h := include/generated/dt.h
 512
 513 no-dot-config-targets := clean clobber mrproper distclean \
 514                          help %docs check% coccicheck \
 515                          ubootversion backup tests check qcheck tcheck
 516
 517 config-targets := 0
 518 mixed-targets  := 0
 519 dot-config     := 1
 520
 521 ifneq ($(filter $(no-dot-config-targets), $(MAKECMDGOALS)),)
 522         ifeq ($(filter-out $(no-dot-config-targets), $(MAKECMDGOALS)),)
 523                 dot-config := 0
 524         endif
 525 endif
 526
 527 ifeq ($(KBUILD_EXTMOD),)
 528         ifneq ($(filter config %config,$(MAKECMDGOALS)),)
 529                 config-targets := 1
 530                 ifneq ($(words $(MAKECMDGOALS)),1)
 531                         mixed-targets := 1
 532                 endif
 533         endif
 534 endif
 535
 536 ifeq ($(mixed-targets),1)
 537 # ===========================================================================
 538 # We're called with mixed targets (*config and build targets).
 539 # Handle them one by one.
 540
 541 PHONY += $(MAKECMDGOALS) __build_one_by_one
 542
 543 $(filter-out __build_one_by_one, $(MAKECMDGOALS)): __build_one_by_one
 544         @:
 545
 546 __build_one_by_one:
 547         $(Q)set -e; \
 548         for i in $(MAKECMDGOALS); do \
 549                 $(MAKE) -f $(srctree)/Makefile $$i; \
 550         done
 551
 552 else
 553 ifeq ($(config-targets),1)
 554 # ===========================================================================
 555 # *config targets only - make sure prerequisites are updated, and descend
 556 # in scripts/kconfig to make the *config target
 557
 558 KBUILD_DEFCONFIG := sandbox_defconfig
 559 export KBUILD_DEFCONFIG KBUILD_KCONFIG
 560
 561 config: scripts_basic outputmakefile FORCE
 562         $(Q)$(MAKE) $(build)=scripts/kconfig $@
 563
 564 %config: scripts_basic outputmakefile FORCE
 565         $(Q)$(MAKE) $(build)=scripts/kconfig $@
 566
 567 else
 568 # ===========================================================================
 569 # Build targets only - this includes vmlinux, arch specific targets, clean
 570 # targets and others. In general all targets except *config targets.
 571
 572 # Additional helpers built in scripts/
 573 # Carefully list dependencies so we do not try to build scripts twice
 574 # in parallel
 575 PHONY += scripts
 576 scripts: scripts_basic include/config/auto.conf
 577         $(Q)$(MAKE) $(build)=$(@)
 578
 579 ifeq ($(dot-config),1)
 580 # Read in config
 581 -include include/config/auto.conf
 582
 583 # Read in dependencies to all Kconfig* files, make sure to run
 584 # oldconfig if changes are detected.
 585 -include include/config/auto.conf.cmd
 586
 587 # To avoid any implicit rule to kick in, define an empty command
 588 $(KCONFIG_CONFIG) include/config/auto.conf.cmd: ;
 589
 590 # If .config is newer than include/config/auto.conf, someone tinkered
 591 # with it and forgot to run make oldconfig.
 592 # if auto.conf.cmd is missing then we are probably in a cleaned tree so
 593 # we execute the config step to be sure to catch updated Kconfig files
 594 include/config/%.conf: $(KCONFIG_CONFIG) include/config/auto.conf.cmd
 595         $(Q)$(MAKE) -f $(srctree)/Makefile syncconfig
 596         @# If the following part fails, include/config/auto.conf should be
 597         @# deleted so "make silentoldconfig" will be re-run on the next build.
 598         $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.autoconf || \
 599                 { rm -f include/config/auto.conf; false; }
 600         @# include/config.h has been updated after "make silentoldconfig".
 601         @# We need to touch include/config/auto.conf so it gets newer
 602         @# than include/config.h.
 603         @# Otherwise, 'make silentoldconfig' would be invoked twice.
 604         $(Q)touch include/config/auto.conf
 605
 606 u-boot.cfg spl/u-boot.cfg tpl/u-boot.cfg:
 607         $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.autoconf $(@)
 608
 609 -include include/autoconf.mk
 610 -include include/autoconf.mk.dep
 611
 612 # We want to include arch/$(ARCH)/config.mk only when include/config/auto.conf
 613 # is up-to-date. When we switch to a different board configuration, old CONFIG
 614 # macros are still remaining in include/config/auto.conf. Without the following
 615 # gimmick, wrong config.mk would be included leading nasty warnings/errors.
 616 ifneq ($(wildcard $(KCONFIG_CONFIG)),)
 617 ifneq ($(wildcard include/config/auto.conf),)
 618 autoconf_is_old := $(shell find . -path ./$(KCONFIG_CONFIG) -newer \
 619                                                 include/config/auto.conf)
 620 ifeq ($(autoconf_is_old),)
 621 include config.mk
 622 include arch/$(ARCH)/Makefile
 623 endif
 624 endif
 625 endif
 626
 627 # These are set by the arch-specific config.mk. Make sure they are exported
 628 # so they can be used when building an EFI application.
 629 export EFI_LDS          # Filename of EFI link script in arch/$(ARCH)/lib
 630 export EFI_CRT0         # Filename of EFI CRT0 in arch/$(ARCH)/lib
 631 export EFI_RELOC        # Filename of EFU relocation code in arch/$(ARCH)/lib
 632 export CFLAGS_EFI       # Compiler flags to add when building EFI app
 633 export CFLAGS_NON_EFI   # Compiler flags to remove when building EFI app
 634 export EFI_TARGET       # binutils target if EFI is natively supported
 635
 636 # If board code explicitly specified LDSCRIPT or CONFIG_SYS_LDSCRIPT, use
 637 # that (or fail if absent).  Otherwise, search for a linker script in a
 638 # standard location.
 639
 640 ifndef LDSCRIPT
 641         #LDSCRIPT := $(srctree)/board/$(BOARDDIR)/u-boot.lds.debug
 642         ifdef CONFIG_SYS_LDSCRIPT
 643                 # need to strip off double quotes
 644                 LDSCRIPT := $(srctree)/$(CONFIG_SYS_LDSCRIPT:"%"=%)
 645         endif
 646 endif
 647
 648 # If there is no specified link script, we look in a number of places for it
 649 ifndef LDSCRIPT
 650         ifeq ($(wildcard $(LDSCRIPT)),)
 651                 LDSCRIPT := $(srctree)/board/$(BOARDDIR)/u-boot.lds
 652         endif
 653         ifeq ($(wildcard $(LDSCRIPT)),)
 654                 LDSCRIPT := $(srctree)/$(CPUDIR)/u-boot.lds
 655         endif
 656         ifeq ($(wildcard $(LDSCRIPT)),)
 657                 LDSCRIPT := $(srctree)/arch/$(ARCH)/cpu/u-boot.lds
 658         endif
 659 endif
 660
 661 else
 662 # Dummy target needed, because used as prerequisite
 663 include/config/auto.conf: ;
 664 endif # $(dot-config)
 665
 666 #
 667 # Xtensa linker script cannot be preprocessed with -ansi because of
 668 # preprocessor operations on strings that don't make C identifiers.
 669 #
 670 ifeq ($(CONFIG_XTENSA),)
 671 LDPPFLAGS       += -ansi
 672 endif
 673
 674 ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE
 675 KBUILD_CFLAGS   += -Os
 676 else
 677 KBUILD_CFLAGS   += -O2
 678 endif
 679
 680 KBUILD_CFLAGS += $(call cc-option,-fno-stack-protector)
 681 KBUILD_CFLAGS += $(call cc-option,-fno-delete-null-pointer-checks)
 682
 683 # disable stringop warnings in gcc 8+
 684 KBUILD_CFLAGS += $(call cc-disable-warning, stringop-truncation)
 685
 686 # Enabled with W=2, disabled by default as noisy
 687 KBUILD_CFLAGS += $(call cc-disable-warning, maybe-uninitialized)
 688
 689 # change __FILE__ to the relative path from the srctree
 690 KBUILD_CFLAGS   += $(call cc-option,-fmacro-prefix-map=$(srctree)/=)
 691
 692 KBUILD_CFLAGS   += -g
 693 # $(KBUILD_AFLAGS) sets -g, which causes gcc to pass a suitable -g<format>
 694 # option to the assembler.
 695 KBUILD_AFLAGS   += -g
 696
 697 # Report stack usage if supported
 698 # ARC tools based on GCC 7.1 has an issue with stack usage
 699 # with naked functions, see commit message for more details
 700 ifndef CONFIG_ARC
 701 ifeq ($(shell $(CONFIG_SHELL) $(srctree)/scripts/gcc-stack-usage.sh $(CC)),y)
 702         KBUILD_CFLAGS += -fstack-usage
 703 endif
 704 endif
 705
 706 KBUILD_CFLAGS += $(call cc-option,-Wno-format-nonliteral)
 707 KBUILD_CFLAGS += $(call cc-disable-warning, address-of-packed-member)
 708
 709 ifeq ($(cc-name),clang)
 710 KBUILD_CPPFLAGS += $(call cc-option,-Qunused-arguments,)
 711 KBUILD_CFLAGS += $(call cc-disable-warning, format-invalid-specifier)
 712 KBUILD_CFLAGS += $(call cc-disable-warning, gnu)
 713 KBUILD_CFLAGS += $(call cc-disable-warning, address-of-packed-member)
 714 # Quiet clang warning: comparison of unsigned expression < 0 is always false
 715 KBUILD_CFLAGS += $(call cc-disable-warning, tautological-compare)
 716 # CLANG uses a _MergedGlobals as optimization, but this breaks modpost, as the
 717 # source of a reference will be _MergedGlobals and not on of the whitelisted names.
 718 # See modpost pattern 2
 719 KBUILD_CFLAGS += $(call cc-option, -mno-global-merge,)
 720 KBUILD_CFLAGS += $(call cc-option, -fcatch-undefined-behavior)
 721 else
 722
 723 # These warnings generated too much noise in a regular build.
 724 # Use make W=1 to enable them (see scripts/Makefile.extrawarn)
 725 KBUILD_CFLAGS += $(call cc-disable-warning, unused-but-set-variable)
 726 endif
 727
 728 # Prohibit date/time macros, which would make the build non-deterministic
 729 KBUILD_CFLAGS   += $(call cc-option,-Werror=date-time)
 730
 731 include scripts/Makefile.extrawarn
 732
 733 # Add user supplied CPPFLAGS, AFLAGS and CFLAGS as the last assignments
 734 KBUILD_CPPFLAGS += $(KCPPFLAGS)
 735 KBUILD_AFLAGS += $(KAFLAGS)
 736 KBUILD_CFLAGS += $(KCFLAGS)
 737
 738 # Use UBOOTINCLUDE when you must reference the include/ directory.
 739 # Needed to be compatible with the O= option
 740 UBOOTINCLUDE    := \
 741         -Iinclude \
 742         $(if $(KBUILD_SRC), -I$(srctree)/include) \
 743         $(if $(CONFIG_$(SPL_)SYS_THUMB_BUILD), \
 744                 $(if $(CONFIG_HAS_THUMB2), \
 745                         $(if $(CONFIG_CPU_V7M), \
 746                                 -I$(srctree)/arch/arm/thumb1/include), \
 747                         -I$(srctree)/arch/arm/thumb1/include)) \
 748         -I$(srctree)/arch/$(ARCH)/include \
 749         -include $(srctree)/include/linux/kconfig.h
 750
 751 NOSTDINC_FLAGS += -nostdinc -isystem $(shell $(CC) -print-file-name=include)
 752
 753 # FIX ME
 754 cpp_flags := $(KBUILD_CPPFLAGS) $(PLATFORM_CPPFLAGS) $(UBOOTINCLUDE) \
 755                                                         $(NOSTDINC_FLAGS)
 756 c_flags := $(KBUILD_CFLAGS) $(cpp_flags)
 757
 758 #########################################################################
 759 # U-Boot objects....order is important (i.e. start must be first)
 760
 761 HAVE_VENDOR_COMMON_LIB = $(if $(wildcard $(srctree)/board/$(VENDOR)/common/Makefile),y,n)
 762
 763 libs-y += lib/
 764 libs-$(HAVE_VENDOR_COMMON_LIB) += board/$(VENDOR)/common/
 765 libs-$(CONFIG_OF_EMBED) += dts/
 766 libs-y += fs/
 767 libs-y += net/
 768 libs-y += disk/
 769 libs-y += drivers/
 770 libs-y += drivers/dma/
 771 libs-y += drivers/gpio/
 772 libs-y += drivers/i2c/
 773 libs-y += drivers/net/
 774 libs-y += drivers/net/phy/
 775 libs-y += drivers/power/ \
 776         drivers/power/domain/ \
 777         drivers/power/fuel_gauge/ \
 778         drivers/power/mfd/ \
 779         drivers/power/pmic/ \
 780         drivers/power/battery/ \
 781         drivers/power/regulator/
 782 libs-y += drivers/spi/
 783 libs-$(CONFIG_FMAN_ENET) += drivers/net/fm/
 784 libs-$(CONFIG_SYS_FSL_DDR) += drivers/ddr/fsl/
 785 libs-$(CONFIG_SYS_FSL_MMDC) += drivers/ddr/fsl/
 786 libs-$(CONFIG_$(SPL_)ALTERA_SDRAM) += drivers/ddr/altera/
 787 libs-y += drivers/serial/
 788 libs-y += drivers/usb/cdns3/
 789 libs-y += drivers/usb/dwc3/
 790 libs-y += drivers/usb/common/
 791 libs-y += drivers/usb/emul/
 792 libs-y += drivers/usb/eth/
 793 libs-$(CONFIG_USB_GADGET) += drivers/usb/gadget/
 794 libs-$(CONFIG_USB_GADGET) += drivers/usb/gadget/udc/
 795 libs-y += drivers/usb/host/
 796 libs-y += drivers/usb/musb/
 797 libs-y += drivers/usb/musb-new/
 798 libs-y += drivers/usb/phy/
 799 libs-y += drivers/usb/ulpi/
 800 libs-y += cmd/
 801 libs-y += common/
 802 libs-y += env/
 803 libs-$(CONFIG_API) += api/
 804 ifdef CONFIG_POST
 805 libs-y += post/
 806 endif
 807 libs-$(CONFIG_UNIT_TEST) += test/ test/dm/
 808 libs-$(CONFIG_UT_ENV) += test/env/
 809 libs-$(CONFIG_UT_OPTEE) += test/optee/
 810 libs-$(CONFIG_UT_OVERLAY) += test/overlay/
 811
 812 libs-y += $(if $(BOARDDIR),board/$(BOARDDIR)/)
 813
 814 libs-y := $(sort $(libs-y))
 815
 816 u-boot-dirs     := $(patsubst %/,%,$(filter %/, $(libs-y))) tools examples
 817
 818 u-boot-alldirs  := $(sort $(u-boot-dirs) $(patsubst %/,%,$(filter %/, $(libs-))))
 819
 820 libs-y          := $(patsubst %/, %/built-in.o, $(libs-y))
 821
 822 u-boot-init := $(head-y)
 823 u-boot-main := $(libs-y)
 824
 825
 826 # Add GCC lib
 827 ifeq ($(CONFIG_USE_PRIVATE_LIBGCC),y)
 828 PLATFORM_LIBGCC = arch/$(ARCH)/lib/lib.a
 829 else
 830 PLATFORM_LIBGCC := -L $(shell dirname `$(CC) $(c_flags) -print-libgcc-file-name`) -lgcc
 831 endif
 832 PLATFORM_LIBS += $(PLATFORM_LIBGCC)
 833
 834 ifdef CONFIG_CC_COVERAGE
 835 KBUILD_CFLAGS += --coverage
 836 PLATFORM_LIBGCC += -lgcov
 837 endif
 838
 839 export PLATFORM_LIBS
 840 export PLATFORM_LIBGCC
 841
 842 # Special flags for CPP when processing the linker script.
 843 # Pass the version down so we can handle backwards compatibility
 844 # on the fly.
 845 LDPPFLAGS += \
 846         -include $(srctree)/include/u-boot/u-boot.lds.h \
 847         -DCPUDIR=$(CPUDIR) \
 848         $(shell $(LD) --version | \
 849           sed -ne 's/GNU ld version \([0-9][0-9]*\)\.\([0-9][0-9]*\).*/-DLD_MAJOR=\1 -DLD_MINOR=\2/p')
 850
 851 #########################################################################
 852 #########################################################################
 853
 854 ifneq ($(CONFIG_BOARD_SIZE_LIMIT),)
 855 BOARD_SIZE_CHECK= @ $(call size_check,$@,$(CONFIG_BOARD_SIZE_LIMIT))
 856 else
 857 BOARD_SIZE_CHECK =
 858 endif
 859
 860 ifneq ($(CONFIG_SPL_SIZE_LIMIT),0)
 861 SPL_SIZE_CHECK = @$(call size_check,$@,$$(tools/spl_size_limit))
 862 else
 863 SPL_SIZE_CHECK =
 864 endif
 865
 866 ifneq ($(CONFIG_TPL_SIZE_LIMIT),0)
 867 TPL_SIZE_CHECK = @$(call size_check,$@,$(CONFIG_TPL_SIZE_LIMIT))
 868 else
 869 TPL_SIZE_CHECK =
 870 endif
 871
 872 # Statically apply RELA-style relocations (currently arm64 only)
 873 # This is useful for arm64 where static relocation needs to be performed on
 874 # the raw binary, but certain simulators only accept an ELF file (but don't
 875 # do the relocation).
 876 ifneq ($(CONFIG_STATIC_RELA),)
 877 # $(1) is u-boot ELF, $(2) is u-boot bin, $(3) is text base
 878 DO_STATIC_RELA = \
 879         start=$$($(NM) $(1) | grep __rel_dyn_start | cut -f 1 -d ' '); \
 880         end=$$($(NM) $(1) | grep __rel_dyn_end | cut -f 1 -d ' '); \
 881         tools/relocate-rela $(2) $(3) $$start $$end
 882 else
 883 DO_STATIC_RELA =
 884 endif
 885
 886 # Always append ALL so that arch config.mk's can add custom ones
 887 ALL-y += u-boot.srec u-boot.bin u-boot.sym System.map binary_size_check
 888
 889 ALL-$(CONFIG_ONENAND_U_BOOT) += u-boot-onenand.bin
 890 ifeq ($(CONFIG_SPL_FSL_PBL),y)
 891 ALL-$(CONFIG_RAMBOOT_PBL) += u-boot-with-spl-pbl.bin
 892 else
 893 ifneq ($(CONFIG_NXP_ESBC), y)
 894 # For Secure Boot The Image needs to be signed and Header must also
 895 # be included. So The image has to be built explicitly
 896 ALL-$(CONFIG_RAMBOOT_PBL) += u-boot.pbl
 897 endif
 898 endif
 899 ALL-$(CONFIG_SPL) += spl/u-boot-spl.bin
 900 ifeq ($(CONFIG_MX6)$(CONFIG_IMX_HAB), yy)
 901 ALL-$(CONFIG_SPL_FRAMEWORK) += u-boot-ivt.img
 902 else
 903 ifeq ($(CONFIG_MX7)$(CONFIG_IMX_HAB), yy)
 904 ALL-$(CONFIG_SPL_FRAMEWORK) += u-boot-ivt.img
 905 else
 906 ALL-$(CONFIG_SPL_FRAMEWORK) += u-boot.img
 907 endif
 908 endif
 909 ALL-$(CONFIG_TPL) += tpl/u-boot-tpl.bin
 910 ALL-$(CONFIG_OF_SEPARATE) += u-boot.dtb
 911 ifeq ($(CONFIG_SPL_FRAMEWORK),y)
 912 ALL-$(CONFIG_OF_SEPARATE) += u-boot-dtb.img
 913 endif
 914 ALL-$(CONFIG_OF_HOSTFILE) += u-boot.dtb
 915 ifneq ($(CONFIG_SPL_TARGET),)
 916 ALL-$(CONFIG_SPL) += $(CONFIG_SPL_TARGET:"%"=%)
 917 endif
 918 ALL-$(CONFIG_REMAKE_ELF) += u-boot.elf
 919 ALL-$(CONFIG_EFI_APP) += u-boot-app.efi
 920 ALL-$(CONFIG_EFI_STUB) += u-boot-payload.efi
 921
 922 ifneq ($(BUILD_ROM)$(CONFIG_BUILD_ROM),)
 923 ALL-$(CONFIG_X86_RESET_VECTOR) += u-boot.rom
 924 endif
 925 ifeq ($(CONFIG_SYS_COREBOOT)$(CONFIG_SPL),yy)
 926 ALL-$(CONFIG_BINMAN) += u-boot-x86-with-spl.bin
 927 endif
 928
 929 # Build a combined spl + u-boot image for sunxi
 930 ifeq ($(CONFIG_ARCH_SUNXI)$(CONFIG_SPL),yy)
 931 ALL-y += u-boot-sunxi-with-spl.bin
 932 endif
 933
 934 # enable combined SPL/u-boot/dtb rules for tegra
 935 ifeq ($(CONFIG_ARCH_TEGRA)$(CONFIG_SPL),yy)
 936 ALL-y += u-boot-tegra.bin u-boot-nodtb-tegra.bin
 937 ALL-$(CONFIG_OF_SEPARATE) += u-boot-dtb-tegra.bin
 938 endif
 939
 940 ALL-$(CONFIG_ARCH_MEDIATEK) += u-boot-mtk.bin
 941
 942 # Add optional build target if defined in board/cpu/soc headers
 943 ifneq ($(CONFIG_BUILD_TARGET),)
 944 ALL-y += $(CONFIG_BUILD_TARGET:"%"=%)
 945 endif
 946
 947 ifeq ($(CONFIG_INIT_SP_RELATIVE)$(CONFIG_OF_SEPARATE),yy)
 948 ALL-y += init_sp_bss_offset_check
 949 endif
 950
 951 ifeq ($(CONFIG_MPC85xx)$(CONFIG_OF_SEPARATE),yy)
 952 ALL-y += u-boot-with-dtb.bin
 953 endif
 954
 955 ifeq ($(CONFIG_ARCH_ROCKCHIP)$(CONFIG_SPL),yy)
 956 ALL-y += u-boot-rockchip.bin
 957 endif
 958
 959 LDFLAGS_u-boot += $(LDFLAGS_FINAL)
 960
 961 # Avoid 'Not enough room for program headers' error on binutils 2.28 onwards.
 962 LDFLAGS_u-boot += $(call ld-option, --no-dynamic-linker)
 963
 964 ifeq ($(CONFIG_ARC)$(CONFIG_NIOS2)$(CONFIG_X86)$(CONFIG_XTENSA),)
 965 LDFLAGS_u-boot += -Ttext $(CONFIG_SYS_TEXT_BASE)
 966 endif
 967
 968 # insure the checker run with the right endianness
 969 CHECKFLAGS += $(if $(CONFIG_CPU_BIG_ENDIAN),-mbig-endian,-mlittle-endian)
 970
 971 # the checker needs the correct machine size
 972 CHECKFLAGS += $(if $(CONFIG_64BIT),-m64,-m32)
 973
 974 # Normally we fill empty space with 0xff
 975 quiet_cmd_objcopy = OBJCOPY $@
 976 cmd_objcopy = $(OBJCOPY) --gap-fill=0xff $(OBJCOPYFLAGS) \
 977         $(OBJCOPYFLAGS_$(@F)) $< $@
 978
 979 # Provide a version which does not do this, for use by EFI
 980 quiet_cmd_zobjcopy = OBJCOPY $@
 981 cmd_zobjcopy = $(OBJCOPY) $(OBJCOPYFLAGS) $(OBJCOPYFLAGS_$(@F)) $< $@
 982
 983 quiet_cmd_efipayload = OBJCOPY $@
 984 cmd_efipayload = $(OBJCOPY) -I binary -O $(EFIPAYLOAD_BFDTARGET) -B $(EFIPAYLOAD_BFDARCH) $< $@
 985
 986 MKIMAGEOUTPUT ?= /dev/null
 987
 988 quiet_cmd_mkimage = MKIMAGE $@
 989 cmd_mkimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -d $< $@ \
 990         >$(MKIMAGEOUTPUT) $(if $(KBUILD_VERBOSE:0=), && cat $(MKIMAGEOUTPUT))
 991
 992 quiet_cmd_mkfitimage = MKIMAGE $@
 993 cmd_mkfitimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -f $(U_BOOT_ITS) -p $(CONFIG_FIT_EXTERNAL_OFFSET) $@\
 994         >$(MKIMAGEOUTPUT) $(if $(KBUILD_VERBOSE:0=), && cat $(MKIMAGEOUTPUT))
 995
 996 quiet_cmd_cat = CAT     $@
 997 cmd_cat = cat $(filter-out $(PHONY), $^) > $@
 998
 999 append = cat $(filter-out $< $(PHONY), $^) >> $@
1000
1001 quiet_cmd_pad_cat = CAT     $@
1002 cmd_pad_cat = $(cmd_objcopy) && $(append) || rm -f $@
1003
1004 quiet_cmd_lzma = LZMA    $@
1005 cmd_lzma = lzma -c -z -k -9 $< > $@
1006
1007 cfg: u-boot.cfg
1008
1009 quiet_cmd_cfgcheck = CFGCHK  $2
1010 cmd_cfgcheck = $(srctree)/scripts/check-config.sh $2 \
1011                 $(srctree)/scripts/config_whitelist.txt $(srctree)
1012
1013 all:            $(ALL-y)
1014 ifeq ($(CONFIG_DEPRECATED),y)
1015         $(warning "You have deprecated configuration options enabled in your .config! Please check your configuration.")
1016 ifeq ($(CONFIG_SPI),y)
1017 ifneq ($(CONFIG_DM_SPI)$(CONFIG_OF_CONTROL),yy)
1018         $(warning "The relevant config item with associated code will remove in v2019.07 release.")
1019 endif
1020 endif
1021 endif
1022 ifneq ($(CONFIG_DM),y)
1023         @echo >&2 "===================== WARNING ======================"
1024         @echo >&2 "This board does not use CONFIG_DM. CONFIG_DM will be"
1025         @echo >&2 "compulsory starting with the v2020.01 release."
1026         @echo >&2 "Failure to update may result in board removal."
1027         @echo >&2 "See doc/driver-model/migration.rst for more info."
1028         @echo >&2 "===================================================="
1029 endif
1030 ifeq ($(CONFIG_MMC),y)
1031 ifneq ($(CONFIG_DM_MMC)$(CONFIG_BLK),yy)
1032         @echo >&2 "===================== WARNING ======================"
1033         @echo >&2 "This board does not use CONFIG_DM_MMC. Please update"
1034         @echo >&2 "the board to use CONFIG_DM_MMC before the v2019.04 release."
1035         @echo >&2 "Failure to update by the deadline may result in board removal."
1036         @echo >&2 "See doc/driver-model/migration.rst for more info."
1037         @echo >&2 "===================================================="
1038 endif
1039 endif
1040 ifeq ($(CONFIG_USB),y)
1041 ifneq ($(CONFIG_DM_USB)$(CONFIG_OF_CONTROL)$(CONFIG_BLK),yyy)
1042         @echo >&2 "===================== WARNING ======================"
1043         @echo >&2 "This board does not use CONFIG_DM_USB. Please update"
1044         @echo >&2 "the board to use CONFIG_DM_USB before the v2019.07 release."
1045         @echo >&2 "Failure to update by the deadline may result in board removal."
1046         @echo >&2 "See doc/driver-model/migration.rst for more info."
1047         @echo >&2 "===================================================="
1048 endif
1049 endif
1050 ifeq ($(CONFIG_MVSATA_IDE),y)
1051         @echo >&2 "===================== WARNING ======================"
1052         @echo >&2 "This board does use CONFIG_MVSATA_IDE which is not"
1053         @echo >&2 "ported to driver-model (DM) yet. Please update the storage"
1054         @echo >&2 "controller driver to use CONFIG_AHCI before the v2019.07"
1055         @echo >&2 "release."
1056         @echo >&2 "Failure to update by the deadline may result in board removal."
1057         @echo >&2 "See doc/driver-model/migration.rst for more info."
1058         @echo >&2 "===================================================="
1059 endif
1060 ifeq ($(CONFIG_LIBATA),y)
1061 ifneq ($(CONFIG_AHCI),y)
1062         @echo >&2 "===================== WARNING ======================"
1063         @echo >&2 "This board does use CONFIG_LIBATA but has CONFIG_AHCI not"
1064         @echo >&2 "enabled. Please update the storage controller driver to use"
1065         @echo >&2 "CONFIG_AHCI before the v2019.07 release."
1066         @echo >&2 "Failure to update by the deadline may result in board removal."
1067         @echo >&2 "See doc/driver-model/migration.rst for more info."
1068         @echo >&2 "===================================================="
1069 endif
1070 endif
1071 ifeq ($(CONFIG_PCI),y)
1072 ifneq ($(CONFIG_DM_PCI),y)
1073         @echo >&2 "===================== WARNING ======================"
1074         @echo >&2 "This board does not use CONFIG_DM_PCI Please update"
1075         @echo >&2 "the board to use CONFIG_DM_PCI before the v2019.07 release."
1076         @echo >&2 "Failure to update by the deadline may result in board removal."
1077         @echo >&2 "See doc/driver-model/migration.rst for more info."
1078         @echo >&2 "===================================================="
1079 endif
1080 endif
1081 ifneq ($(CONFIG_LCD)$(CONFIG_VIDEO),)
1082 ifneq ($(CONFIG_DM_VIDEO),y)
1083         @echo >&2 "===================== WARNING ======================"
1084         @echo >&2 "This board does not use CONFIG_DM_VIDEO Please update"
1085         @echo >&2 "the board to use CONFIG_DM_VIDEO before the v2019.07 release."
1086         @echo >&2 "Failure to update by the deadline may result in board removal."
1087         @echo >&2 "See doc/driver-model/migration.rst for more info."
1088         @echo >&2 "===================================================="
1089 endif
1090 endif
1091 ifeq ($(CONFIG_OF_EMBED),y)
1092         @echo >&2 "===================== WARNING ======================"
1093         @echo >&2 "CONFIG_OF_EMBED is enabled. This option should only"
1094         @echo >&2 "be used for debugging purposes. Please use"
1095         @echo >&2 "CONFIG_OF_SEPARATE for boards in mainline."
1096         @echo >&2 "See doc/README.fdt-control for more info."
1097         @echo >&2 "===================================================="
1098 endif
1099 ifeq ($(CONFIG_SPI_FLASH),y)
1100 ifneq ($(CONFIG_DM_SPI_FLASH)$(CONFIG_OF_CONTROL),yy)
1101         @echo >&2 "===================== WARNING ======================"
1102         @echo >&2 "This board does not use CONFIG_DM_SPI_FLASH. Please update"
1103         @echo >&2 "the board to use CONFIG_SPI_FLASH before the v2019.07 release."
1104         @echo >&2 "Failure to update by the deadline may result in board removal."
1105         @echo >&2 "See doc/driver-model/migration.rst for more info."
1106         @echo >&2 "===================================================="
1107 endif
1108 endif
1109 ifneq ($(CONFIG_WATCHDOG)$(CONFIG_HW_WATCHDOG),)
1110 ifneq ($(CONFIG_WDT),y)
1111         @echo >&2 "===================== WARNING ======================"
1112         @echo >&2 "This board does not use CONFIG_WDT (DM watchdog support)."
1113         @echo >&2 "Please update the board to use CONFIG_WDT before the"
1114         @echo >&2 "v2019.10 release."
1115         @echo >&2 "Failure to update by the deadline may result in board removal."
1116         @echo >&2 "See doc/driver-model/migration.rst for more info."
1117         @echo >&2 "===================================================="
1118 endif
1119 endif
1120 ifneq ($(CONFIG_NET),)
1121 ifneq ($(CONFIG_DM_ETH),y)
1122         @echo >&2 "===================== WARNING ======================"
1123         @echo >&2 "This board does not use CONFIG_DM_ETH (Driver Model"
1124         @echo >&2 "for Ethernet drivers). Please update the board to use"
1125         @echo >&2 "CONFIG_DM_ETH before the v2020.07 release. Failure to"
1126         @echo >&2 "update by the deadline may result in board removal."
1127         @echo >&2 "See doc/driver-model/migration.rst for more info."
1128         @echo >&2 "===================================================="
1129 endif
1130 endif
1131         @# Check that this build does not use CONFIG options that we do not
1132         @# know about unless they are in Kconfig. All the existing CONFIG
1133         @# options are whitelisted, so new ones should not be added.
1134         $(call cmd,cfgcheck,u-boot.cfg)
1135
1136 PHONY += dtbs
1137 dtbs: dts/dt.dtb
1138         @:
1139 dts/dt.dtb: u-boot
1140         $(Q)$(MAKE) $(build)=dts dtbs
1141
1142 quiet_cmd_copy = COPY    $@
1143       cmd_copy = cp $< $@
1144
1145 ifeq ($(CONFIG_MULTI_DTB_FIT),y)
1146
1147 ifeq ($(CONFIG_MULTI_DTB_FIT_LZO),y)
1148 FINAL_DTB_CONTAINER = fit-dtb.blob.lzo
1149 else ifeq ($(CONFIG_MULTI_DTB_FIT_GZIP),y)
1150 FINAL_DTB_CONTAINER = fit-dtb.blob.gz
1151 else
1152 FINAL_DTB_CONTAINER = fit-dtb.blob
1153 endif
1154
1155 fit-dtb.blob.gz: fit-dtb.blob
1156         @gzip -kf9 $< > $@
1157
1158 fit-dtb.blob.lzo: fit-dtb.blob
1159         @lzop -f9 $< > $@
1160
1161 fit-dtb.blob: dts/dt.dtb FORCE
1162         $(call if_changed,mkimage)
1163 ifneq ($(SOURCE_DATE_EPOCH),)
1164         touch -d @$(SOURCE_DATE_EPOCH) fit-dtb.blob
1165         chmod 0600 fit-dtb.blob
1166 endif
1167
1168 MKIMAGEFLAGS_fit-dtb.blob = -f auto -A $(ARCH) -T firmware -C none -O u-boot \
1169         -a 0 -e 0 -E \
1170         $(patsubst %,-b arch/$(ARCH)/dts/%.dtb,$(subst ",,$(CONFIG_OF_LIST))) -d /dev/null
1171
1172 ifneq ($(EXT_DTB),)
1173 u-boot-fit-dtb.bin: u-boot-nodtb.bin $(EXT_DTB)
1174                 $(call if_changed,cat)
1175 else
1176 u-boot-fit-dtb.bin: u-boot-nodtb.bin $(FINAL_DTB_CONTAINER)
1177         $(call if_changed,cat)
1178 endif
1179
1180 u-boot.bin: u-boot-fit-dtb.bin FORCE
1181         $(call if_changed,copy)
1182
1183 u-boot-dtb.bin: u-boot-nodtb.bin dts/dt.dtb FORCE
1184         $(call if_changed,cat)
1185
1186 else ifeq ($(CONFIG_OF_SEPARATE),y)
1187 u-boot-dtb.bin: u-boot-nodtb.bin dts/dt.dtb FORCE
1188         $(call if_changed,cat)
1189
1190 u-boot.bin: u-boot-dtb.bin FORCE
1191         $(call if_changed,copy)
1192 else
1193 u-boot.bin: u-boot-nodtb.bin FORCE
1194         $(call if_changed,copy)
1195 endif
1196
1197 # we call Makefile in arch/arm/mach-imx which
1198 # has targets which are dependent on targets defined
1199 # here. make could not resolve them and we must ensure
1200 # that they are finished before calling imx targets
1201 ifeq ($(CONFIG_MULTI_DTB_FIT),y)
1202 IMX_DEPS = u-boot-fit-dtb.bin
1203 endif
1204
1205 %.imx: $(IMX_DEPS) %.bin
1206         $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@
1207         $(BOARD_SIZE_CHECK)
1208
1209 %.vyb: %.imx
1210         $(Q)$(MAKE) $(build)=arch/arm/cpu/armv7/vf610 $@
1211
1212 quiet_cmd_copy = COPY    $@
1213       cmd_copy = cp $< $@
1214
1215 u-boot.dtb: dts/dt.dtb
1216         $(call cmd,copy)
1217
1218 OBJCOPYFLAGS_u-boot.hex := -O ihex
1219
1220 OBJCOPYFLAGS_u-boot.srec := -O srec
1221
1222 u-boot.hex u-boot.srec: u-boot FORCE
1223         $(call if_changed,objcopy)
1224
1225 OBJCOPYFLAGS_u-boot-elf.srec := $(OBJCOPYFLAGS_u-boot.srec)
1226
1227 u-boot-elf.srec: u-boot.elf FORCE
1228         $(call if_changed,objcopy)
1229
1230 OBJCOPYFLAGS_u-boot-spl.srec = $(OBJCOPYFLAGS_u-boot.srec)
1231
1232 spl/u-boot-spl.srec: spl/u-boot-spl FORCE
1233         $(call if_changed,objcopy)
1234
1235 %.scif: %.srec
1236         $(Q)$(MAKE) $(build)=arch/arm/mach-rmobile $@
1237
1238 OBJCOPYFLAGS_u-boot-nodtb.bin := -O binary \
1239                 $(if $(CONFIG_X86_16BIT_INIT),-R .start16 -R .resetvec) \
1240                 $(if $(CONFIG_MPC85XX_HAVE_RESET_VECTOR),-R .bootpg -R .resetvec)
1241
1242 OBJCOPYFLAGS_u-boot-spl.hex = $(OBJCOPYFLAGS_u-boot.hex)
1243
1244 spl/u-boot-spl.hex: spl/u-boot-spl FORCE
1245         $(call if_changed,objcopy)
1246
1247 binary_size_check: u-boot-nodtb.bin FORCE
1248         @file_size=$(shell wc -c u-boot-nodtb.bin | awk '{print $$1}') ; \
1249         map_size=$(shell cat u-boot.map | \
1250                 awk '/_image_copy_start/ {start = $$1} /_image_binary_end/ {end = $$1} END {if (start != "" && end != "") print "ibase=16; " toupper(end) " - " toupper(start)}' \
1251                 | sed 's/0X//g' \
1252                 | bc); \
1253         if [ "" != "$$map_size" ]; then \
1254                 if test $$map_size -ne $$file_size; then \
1255                         echo "u-boot.map shows a binary size of $$map_size" >&2 ; \
1256                         echo "  but u-boot-nodtb.bin shows $$file_size" >&2 ; \
1257                         exit 1; \
1258                 fi \
1259         fi
1260
1261 ifeq ($(CONFIG_INIT_SP_RELATIVE)$(CONFIG_OF_SEPARATE),yy)
1262 ifneq ($(CONFIG_SYS_MALLOC_F_LEN),)
1263 subtract_sys_malloc_f_len = space=$$(($${space} - $(CONFIG_SYS_MALLOC_F_LEN)))
1264 else
1265 subtract_sys_malloc_f_len = true
1266 endif
1267 # The 1/4 margin below is somewhat arbitrary. The likely initial SP usage is
1268 # so low that the DTB could probably use 90%+ of the available space, for
1269 # current values of CONFIG_SYS_INIT_SP_BSS_OFFSET at least. However, let's be
1270 # safe for now and tweak this later if space becomes tight.
1271 # A rejected alternative would be to check that some absolute minimum stack
1272 # space was available. However, since CONFIG_SYS_INIT_SP_BSS_OFFSET is
1273 # deliberately build-specific, to take account of build-to-build stack usage
1274 # differences due to different feature sets, there is no common absolute value
1275 # to check against.
1276 init_sp_bss_offset_check: u-boot.dtb FORCE
1277         @dtb_size=$(shell wc -c u-boot.dtb | awk '{print $$1}') ; \
1278         space=$(CONFIG_SYS_INIT_SP_BSS_OFFSET) ; \
1279         $(subtract_sys_malloc_f_len) ; \
1280         quarter_space=$$(($${space} / 4)) ; \
1281         if [ $${dtb_size} -gt $${quarter_space} ]; then \
1282                 echo "u-boot.dtb is larger than 1 quarter of " >&2 ; \
1283                 echo "(CONFIG_SYS_INIT_SP_BSS_OFFSET - CONFIG_SYS_MALLOC_F_LEN)" >&2 ; \
1284                 exit 1 ; \
1285         fi
1286 endif
1287
1288 u-boot-nodtb.bin: u-boot FORCE
1289         $(call if_changed,objcopy)
1290         $(call DO_STATIC_RELA,$<,$@,$(CONFIG_SYS_TEXT_BASE))
1291         $(BOARD_SIZE_CHECK)
1292
1293 u-boot.ldr:     u-boot
1294                 $(CREATE_LDR_ENV)
1295                 $(LDR) -T $(CONFIG_CPU) -c $@ $< $(LDR_FLAGS)
1296                 $(BOARD_SIZE_CHECK)
1297
1298 # binman
1299 # ---------------------------------------------------------------------------
1300 # Use 'make BINMAN_DEBUG=1' to enable debugging
1301 quiet_cmd_binman = BINMAN  $@
1302 cmd_binman = $(srctree)/tools/binman/binman $(if $(BINMAN_DEBUG),-D) \
1303                 --toolpath $(objtree)/tools \
1304                 $(if $(BINMAN_VERBOSE),-v$(BINMAN_VERBOSE)) \
1305                 build -u -d u-boot.dtb -O . -m \
1306                 -I . -I $(srctree) -I $(srctree)/board/$(BOARDDIR) \
1307                 $(BINMAN_$(@F))
1308
1309 OBJCOPYFLAGS_u-boot.ldr.hex := -I binary -O ihex
1310
1311 OBJCOPYFLAGS_u-boot.ldr.srec := -I binary -O srec
1312
1313 u-boot.ldr.hex u-boot.ldr.srec: u-boot.ldr FORCE
1314         $(call if_changed,objcopy)
1315
1316 #
1317 # U-Boot entry point, needed for booting of full-blown U-Boot
1318 # from the SPL U-Boot version.
1319 #
1320 ifndef CONFIG_SYS_UBOOT_START
1321 CONFIG_SYS_UBOOT_START := $(CONFIG_SYS_TEXT_BASE)
1322 endif
1323
1324 # Boards with more complex image requirements can provide an .its source file
1325 # or a generator script
1326 ifneq ($(CONFIG_SPL_FIT_SOURCE),"")
1327 U_BOOT_ITS := u-boot.its
1328 $(U_BOOT_ITS): $(subst ",,$(CONFIG_SPL_FIT_SOURCE))
1329         $(call if_changed,copy)
1330 else
1331 ifneq ($(CONFIG_SPL_FIT_GENERATOR),"")
1332 U_BOOT_ITS := u-boot.its
1333 ifeq ($(CONFIG_SPL_FIT_GENERATOR),"arch/arm/mach-imx/mkimage_fit_atf.sh")
1334 U_BOOT_ITS_DEPS += u-boot-nodtb.bin
1335 endif
1336 ifeq ($(CONFIG_SPL_FIT_GENERATOR),"arch/arm/mach-rockchip/make_fit_atf.py")
1337 U_BOOT_ITS_DEPS += u-boot
1338 endif
1339 $(U_BOOT_ITS): $(U_BOOT_ITS_DEPS) FORCE
1340         $(srctree)/$(CONFIG_SPL_FIT_GENERATOR) \
1341         $(patsubst %,arch/$(ARCH)/dts/%.dtb,$(subst ",,$(CONFIG_OF_LIST))) > $@
1342 endif
1343 endif
1344
1345 ifdef CONFIG_SPL_LOAD_FIT
1346 MKIMAGEFLAGS_u-boot.img = -f auto -A $(ARCH) -T firmware -C none -O u-boot \
1347         -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \
1348         -p $(CONFIG_FIT_EXTERNAL_OFFSET) \
1349         -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board" -E \
1350         $(patsubst %,-b arch/$(ARCH)/dts/%.dtb,$(subst ",,$(CONFIG_OF_LIST))) \
1351         $(patsubst %,-b arch/$(ARCH)/dts/%.dtbo,$(subst ",,$(CONFIG_OF_OVERLAY_LIST)))
1352 else
1353 MKIMAGEFLAGS_u-boot.img = -A $(ARCH) -T firmware -C none -O u-boot \
1354         -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \
1355         -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board"
1356 MKIMAGEFLAGS_u-boot-ivt.img = -A $(ARCH) -T firmware_ivt -C none -O u-boot \
1357         -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \
1358         -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board"
1359 u-boot-ivt.img: MKIMAGEOUTPUT = u-boot-ivt.img.log
1360 endif
1361
1362 MKIMAGEFLAGS_u-boot-dtb.img = $(MKIMAGEFLAGS_u-boot.img)
1363
1364 # Some boards have the kwbimage.cfg file written in advance, while some
1365 # other boards generate it on the fly during the build in the build tree.
1366 # Let's check if the file exists in the build tree first, otherwise we
1367 # fall back to use the one in the source tree.
1368 KWD_CONFIG_FILE = $(shell \
1369         if [ -f $(objtree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%) ]; then \
1370                 echo -n $(objtree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%); \
1371         else \
1372                 echo -n $(srctree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%); \
1373         fi)
1374
1375 MKIMAGEFLAGS_u-boot.kwb = -n $(KWD_CONFIG_FILE) \
1376         -T kwbimage -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE)
1377
1378 MKIMAGEFLAGS_u-boot-spl.kwb = -n $(KWD_CONFIG_FILE) \
1379         -T kwbimage -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE) \
1380         $(if $(KEYDIR),-k $(KEYDIR))
1381
1382 MKIMAGEFLAGS_u-boot.pbl = -n $(srctree)/$(CONFIG_SYS_FSL_PBL_RCW:"%"=%) \
1383                 -R $(srctree)/$(CONFIG_SYS_FSL_PBL_PBI:"%"=%) -T pblimage
1384
1385 ifeq ($(CONFIG_MPC85xx)$(CONFIG_OF_SEPARATE),yy)
1386 UBOOT_BIN := u-boot-with-dtb.bin
1387 else
1388 UBOOT_BIN := u-boot.bin
1389 endif
1390
1391 MKIMAGEFLAGS_u-boot-lzma.img = -A $(ARCH) -T standalone -C lzma -O u-boot \
1392         -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \
1393         -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board"
1394
1395 u-boot.bin.lzma: u-boot.bin FORCE
1396         $(call if_changed,lzma)
1397
1398 u-boot-lzma.img: u-boot.bin.lzma FORCE
1399         $(call if_changed,mkimage)
1400
1401 u-boot-dtb.img u-boot.img u-boot.kwb u-boot.pbl u-boot-ivt.img: \
1402                 $(if $(CONFIG_SPL_LOAD_FIT),u-boot-nodtb.bin \
1403                         $(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_OF_HOSTFILE),dts/dt.dtb) \
1404                 ,$(UBOOT_BIN)) FORCE
1405         $(call if_changed,mkimage)
1406         $(BOARD_SIZE_CHECK)
1407
1408 ifeq ($(CONFIG_SPL_LOAD_FIT_FULL),y)
1409 MKIMAGEFLAGS_u-boot.itb =
1410 else
1411 MKIMAGEFLAGS_u-boot.itb = -E
1412 endif
1413
1414 u-boot.itb: u-boot-nodtb.bin \
1415                 $(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_OF_HOSTFILE),dts/dt.dtb) \
1416                 $(U_BOOT_ITS) FORCE
1417         $(call if_changed,mkfitimage)
1418         $(BOARD_SIZE_CHECK)
1419
1420 u-boot-spl.kwb: u-boot.img spl/u-boot-spl.bin FORCE
1421         $(call if_changed,mkimage)
1422
1423 u-boot.sha1:    u-boot.bin
1424                 tools/ubsha1 u-boot.bin
1425
1426 u-boot.dis:     u-boot
1427                 $(OBJDUMP) -d $< > $@
1428
1429 ifneq ($(CONFIG_SPL_PAYLOAD),)
1430 SPL_PAYLOAD := $(CONFIG_SPL_PAYLOAD:"%"=%)
1431 else
1432 SPL_PAYLOAD := u-boot.bin
1433 endif
1434
1435 SPL_IMAGE := $(CONFIG_SPL_IMAGE:"%"=%)
1436
1437 OBJCOPYFLAGS_u-boot-with-spl.bin = -I binary -O binary \
1438                                    --pad-to=$(CONFIG_SPL_PAD_TO)
1439 u-boot-with-spl.bin: $(SPL_IMAGE) $(SPL_PAYLOAD) FORCE
1440         $(call if_changed,pad_cat)
1441
1442 ifeq ($(CONFIG_ARCH_ROCKCHIP),y)
1443
1444 # TPL + SPL
1445 ifeq ($(CONFIG_SPL)$(CONFIG_TPL),yy)
1446 MKIMAGEFLAGS_u-boot-tpl-rockchip.bin = -n $(CONFIG_SYS_SOC) -T rksd
1447 tpl/u-boot-tpl-rockchip.bin: tpl/u-boot-tpl.bin FORCE
1448         $(call if_changed,mkimage)
1449 idbloader.img: tpl/u-boot-tpl-rockchip.bin spl/u-boot-spl.bin FORCE
1450         $(call if_changed,cat)
1451 else
1452 MKIMAGEFLAGS_idbloader.img = -n $(CONFIG_SYS_SOC) -T rksd
1453 idbloader.img: spl/u-boot-spl.bin FORCE
1454         $(call if_changed,mkimage)
1455 endif
1456
1457 ifeq ($(CONFIG_ARM64),)
1458 u-boot-rockchip.bin: idbloader.img u-boot.img FORCE
1459         $(call if_changed,binman)
1460 else
1461 OBJCOPYFLAGS_u-boot-rockchip.bin = -I binary -O binary \
1462         --pad-to=$(CONFIG_SPL_PAD_TO) --gap-fill=0xff
1463 u-boot-rockchip.bin: idbloader.img u-boot.itb FORCE
1464         $(call if_changed,pad_cat)
1465 endif # CONFIG_ARM64
1466
1467 endif # CONFIG_ARCH_ROCKCHIP
1468
1469 ifeq ($(CONFIG_ARCH_LPC32XX)$(CONFIG_SPL),yy)
1470 MKIMAGEFLAGS_lpc32xx-spl.img = -T lpc32xximage -a $(CONFIG_SPL_TEXT_BASE)
1471
1472 lpc32xx-spl.img: spl/u-boot-spl.bin FORCE
1473         $(call if_changed,mkimage)
1474
1475 OBJCOPYFLAGS_lpc32xx-boot-0.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO)
1476
1477 lpc32xx-boot-0.bin: lpc32xx-spl.img FORCE
1478         $(call if_changed,objcopy)
1479
1480 OBJCOPYFLAGS_lpc32xx-boot-1.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO)
1481
1482 lpc32xx-boot-1.bin: lpc32xx-spl.img FORCE
1483         $(call if_changed,objcopy)
1484
1485 lpc32xx-full.bin: lpc32xx-boot-0.bin lpc32xx-boot-1.bin u-boot.img FORCE
1486         $(call if_changed,cat)
1487
1488 endif
1489
1490 OBJCOPYFLAGS_u-boot-with-tpl.bin = -I binary -O binary \
1491                                    --pad-to=$(CONFIG_TPL_PAD_TO)
1492 tpl/u-boot-with-tpl.bin: tpl/u-boot-tpl.bin u-boot.bin FORCE
1493         $(call if_changed,pad_cat)
1494
1495 SPL: spl/u-boot-spl.bin FORCE
1496         $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@
1497
1498 ifeq ($(CONFIG_ARCH_IMX8M)$(CONFIG_ARCH_IMX8), y)
1499 ifeq ($(CONFIG_SPL_LOAD_IMX_CONTAINER), y)
1500 u-boot.cnt: u-boot.bin FORCE
1501         $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@
1502
1503 flash.bin: spl/u-boot-spl.bin u-boot.cnt FORCE
1504         $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@
1505 else
1506 flash.bin: spl/u-boot-spl.bin u-boot.itb FORCE
1507         $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@
1508 endif
1509 endif
1510
1511 u-boot-with-spl.imx u-boot-with-nand-spl.imx: SPL u-boot.bin FORCE
1512         $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@
1513
1514 MKIMAGEFLAGS_u-boot.ubl = -n $(UBL_CONFIG) -T ublimage -e $(CONFIG_SYS_TEXT_BASE)
1515
1516 u-boot.ubl: u-boot-with-spl.bin FORCE
1517         $(call if_changed,mkimage)
1518
1519 MKIMAGEFLAGS_u-boot-spl.ais = -s -n $(if $(CONFIG_AIS_CONFIG_FILE), \
1520         $(srctree)/$(CONFIG_AIS_CONFIG_FILE:"%"=%),"/dev/null") \
1521         -T aisimage -e $(CONFIG_SPL_TEXT_BASE)
1522 spl/u-boot-spl.ais: spl/u-boot-spl.bin FORCE
1523         $(call if_changed,mkimage)
1524
1525 OBJCOPYFLAGS_u-boot.ais = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO)
1526 u-boot.ais: spl/u-boot-spl.ais u-boot.img FORCE
1527         $(call if_changed,pad_cat)
1528
1529 u-boot-signed.sb: u-boot.bin spl/u-boot-spl.bin
1530         $(Q)$(MAKE) $(build)=arch/arm/cpu/arm926ejs/mxs u-boot-signed.sb
1531 u-boot.sb: u-boot.bin spl/u-boot-spl.bin
1532         $(Q)$(MAKE) $(build)=arch/arm/cpu/arm926ejs/mxs u-boot.sb
1533
1534 # On x600 (SPEAr600) U-Boot is appended to U-Boot SPL.
1535 # Both images are created using mkimage (crc etc), so that the ROM
1536 # bootloader can check its integrity. Padding needs to be done to the
1537 # SPL image (with mkimage header) and not the binary. Otherwise the resulting image
1538 # which is loaded/copied by the ROM bootloader to SRAM doesn't fit.
1539 # The resulting image containing both U-Boot images is called u-boot.spr
1540 MKIMAGEFLAGS_u-boot-spl.img = -A $(ARCH) -T firmware -C none \
1541         -a $(CONFIG_SPL_TEXT_BASE) -e $(CONFIG_SPL_TEXT_BASE) -n XLOADER
1542 spl/u-boot-spl.img: spl/u-boot-spl.bin FORCE
1543         $(call if_changed,mkimage)
1544
1545 OBJCOPYFLAGS_u-boot.spr = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) \
1546                           --gap-fill=0xff
1547 u-boot.spr: spl/u-boot-spl.img u-boot.img FORCE
1548         $(call if_changed,pad_cat)
1549
1550 ifneq ($(CONFIG_ARCH_SOCFPGA),)
1551 quiet_cmd_socboot = SOCBOOT $@
1552 cmd_socboot = cat       spl/u-boot-spl.sfp spl/u-boot-spl.sfp   \
1553                         spl/u-boot-spl.sfp spl/u-boot-spl.sfp   \
1554                         u-boot.img > $@ || rm -f $@
1555 u-boot-with-spl.sfp: spl/u-boot-spl.sfp u-boot.img FORCE
1556         $(call if_changed,socboot)
1557
1558 quiet_cmd_socnandboot = SOCNANDBOOT $@
1559 cmd_socnandboot =  dd if=/dev/zero of=spl/u-boot-spl.pad bs=64 count=1024 ; \
1560                    cat  spl/u-boot-spl.sfp spl/u-boot-spl.pad \
1561                         spl/u-boot-spl.sfp spl/u-boot-spl.pad \
1562                         spl/u-boot-spl.sfp spl/u-boot-spl.pad \
1563                         spl/u-boot-spl.sfp spl/u-boot-spl.pad \
1564                         u-boot.img > $@ || rm -f $@ spl/u-boot-spl.pad
1565 u-boot-with-nand-spl.sfp: spl/u-boot-spl.sfp u-boot.img FORCE
1566         $(call if_changed,socnandboot)
1567
1568 endif
1569
1570 ifeq ($(CONFIG_MPC85xx)$(CONFIG_OF_SEPARATE),yy)
1571 u-boot-with-dtb.bin: u-boot.bin u-boot.dtb \
1572         $(if $(CONFIG_MPC85XX_HAVE_RESET_VECTOR), u-boot-br.bin) FORCE
1573         $(call if_changed,binman)
1574
1575 ifeq ($(CONFIG_MPC85XX_HAVE_RESET_VECTOR),y)
1576 OBJCOPYFLAGS_u-boot-br.bin := -O binary -j .bootpg -j .resetvec
1577 u-boot-br.bin: u-boot FORCE
1578         $(call if_changed,objcopy)
1579 endif
1580 endif
1581
1582 # x86 uses a large ROM. We fill it with 0xff, put the 16-bit stuff (including
1583 # reset vector) at the top, Intel ME descriptor at the bottom, and U-Boot in
1584 # the middle. This is handled by binman based on an image description in the
1585 # board's device tree.
1586 ifneq ($(CONFIG_X86_RESET_VECTOR),)
1587 rom: u-boot.rom FORCE
1588
1589 refcode.bin: $(srctree)/board/$(BOARDDIR)/refcode.bin FORCE
1590         $(call if_changed,copy)
1591
1592 quiet_cmd_ldr = LD      $@
1593 cmd_ldr = $(LD) $(LDFLAGS_$(@F)) \
1594                $(filter-out FORCE,$^) -o $@
1595
1596 u-boot.rom: u-boot-x86-start16.bin u-boot-x86-reset16.bin u-boot.bin \
1597                 $(if $(CONFIG_SPL_X86_16BIT_INIT),spl/u-boot-spl.bin) \
1598                 $(if $(CONFIG_TPL_X86_16BIT_INIT),tpl/u-boot-tpl.bin) \
1599                 $(if $(CONFIG_HAVE_REFCODE),refcode.bin) FORCE
1600         $(call if_changed,binman)
1601
1602 OBJCOPYFLAGS_u-boot-x86-start16.bin := -O binary -j .start16
1603 u-boot-x86-start16.bin: u-boot FORCE
1604         $(call if_changed,objcopy)
1605
1606 OBJCOPYFLAGS_u-boot-x86-reset16.bin := -O binary -j .resetvec
1607 u-boot-x86-reset16.bin: u-boot FORCE
1608         $(call if_changed,objcopy)
1609 endif
1610
1611 ifneq ($(CONFIG_ARCH_SUNXI),)
1612 ifeq ($(CONFIG_ARM64),)
1613 u-boot-sunxi-with-spl.bin: spl/sunxi-spl.bin u-boot.img u-boot.dtb FORCE
1614         $(call if_changed,binman)
1615 else
1616 u-boot-sunxi-with-spl.bin: spl/sunxi-spl.bin u-boot.itb FORCE
1617         $(call if_changed,cat)
1618 endif
1619 endif
1620
1621 u-boot-x86-with-spl.bin: spl/u-boot-spl.bin u-boot.bin FORCE
1622         $(call if_changed,binman)
1623
1624 ifneq ($(CONFIG_ARCH_TEGRA),)
1625 ifneq ($(CONFIG_BINMAN),)
1626 # Makes u-boot-dtb-tegra.bin u-boot-tegra.bin u-boot-nodtb-tegra.bin
1627 %-dtb-tegra.bin %-tegra.bin %-nodtb-tegra.bin: \
1628                 spl/%-spl %.bin FORCE
1629         $(call if_changed,binman)
1630 else
1631 OBJCOPYFLAGS_u-boot-nodtb-tegra.bin = -O binary --pad-to=$(CONFIG_SYS_TEXT_BASE)
1632 u-boot-nodtb-tegra.bin: spl/u-boot-spl u-boot-nodtb.bin FORCE
1633         $(call if_changed,pad_cat)
1634
1635 OBJCOPYFLAGS_u-boot-tegra.bin = -O binary --pad-to=$(CONFIG_SYS_TEXT_BASE)
1636 u-boot-tegra.bin: spl/u-boot-spl u-boot.bin FORCE
1637         $(call if_changed,pad_cat)
1638
1639 u-boot-dtb-tegra.bin: u-boot-tegra.bin FORCE
1640         $(call if_changed,copy)
1641 endif  # binman
1642 endif
1643
1644 OBJCOPYFLAGS_u-boot-app.efi := $(OBJCOPYFLAGS_EFI)
1645 u-boot-app.efi: u-boot FORCE
1646         $(call if_changed,zobjcopy)
1647
1648 u-boot.bin.o: u-boot.bin FORCE
1649         $(call if_changed,efipayload)
1650
1651 u-boot-payload.lds: $(LDSCRIPT_EFI) FORCE
1652         $(call if_changed_dep,cpp_lds)
1653
1654 # Rule to link the EFI payload which contains a stub and a U-Boot binary
1655 quiet_cmd_u-boot_payload ?= LD      $@
1656       cmd_u-boot_payload ?= $(LD) $(LDFLAGS_EFI_PAYLOAD) -o $@ \
1657       -T u-boot-payload.lds arch/x86/cpu/call32.o \
1658       lib/efi/efi.o lib/efi/efi_stub.o u-boot.bin.o \
1659       $(addprefix arch/$(ARCH)/lib/,$(EFISTUB))
1660
1661 u-boot-payload: u-boot.bin.o u-boot-payload.lds FORCE
1662         $(call if_changed,u-boot_payload)
1663
1664 OBJCOPYFLAGS_u-boot-payload.efi := $(OBJCOPYFLAGS_EFI)
1665 u-boot-payload.efi: u-boot-payload FORCE
1666         $(call if_changed,zobjcopy)
1667
1668 u-boot-img.bin: spl/u-boot-spl.bin u-boot.img FORCE
1669         $(call if_changed,cat)
1670
1671 #Add a target to create boot binary having SPL binary in PBI format
1672 #concatenated with u-boot binary. It is need by PowerPC SoC having
1673 #internal SRAM <= 512KB.
1674 MKIMAGEFLAGS_u-boot-spl.pbl = -n $(srctree)/$(CONFIG_SYS_FSL_PBL_RCW:"%"=%) \
1675                 -R $(srctree)/$(CONFIG_SYS_FSL_PBL_PBI:"%"=%) -T pblimage \
1676                 -A $(ARCH) -a $(CONFIG_SPL_TEXT_BASE)
1677
1678 spl/u-boot-spl.pbl: spl/u-boot-spl.bin FORCE
1679         $(call if_changed,mkimage)
1680
1681 ifeq ($(ARCH),arm)
1682 UBOOT_BINLOAD := u-boot.img
1683 else
1684 ifeq ($(CONFIG_MPC85xx)$(CONFIG_OF_SEPARATE),yy)
1685 UBOOT_BINLOAD := u-boot-with-dtb.bin
1686 else
1687 UBOOT_BINLOAD := u-boot.bin
1688 endif
1689 endif
1690
1691 OBJCOPYFLAGS_u-boot-with-spl-pbl.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) \
1692                           --gap-fill=0xff
1693
1694 u-boot-with-spl-pbl.bin: spl/u-boot-spl.pbl $(UBOOT_BINLOAD) FORCE
1695         $(call if_changed,pad_cat)
1696
1697 # PPC4xx needs the SPL at the end of the image, since the reset vector
1698 # is located at 0xfffffffc. So we can't use the "u-boot-img.bin" target
1699 # and need to introduce a new build target with the full blown U-Boot
1700 # at the start padded up to the start of the SPL image. And then concat
1701 # the SPL image to the end.
1702
1703 OBJCOPYFLAGS_u-boot-img-spl-at-end.bin := -I binary -O binary \
1704         --pad-to=$(CONFIG_UBOOT_PAD_TO) --gap-fill=0xff
1705 u-boot-img-spl-at-end.bin: u-boot.img spl/u-boot-spl.bin FORCE
1706         $(call if_changed,pad_cat)
1707
1708 quiet_cmd_u-boot-elf ?= LD      $@
1709         cmd_u-boot-elf ?= $(LD) u-boot-elf.o -o $@ \
1710         -T u-boot-elf.lds --defsym=$(CONFIG_PLATFORM_ELFENTRY)=$(CONFIG_SYS_TEXT_BASE) \
1711         -Ttext=$(CONFIG_SYS_TEXT_BASE)
1712 u-boot.elf: u-boot.bin u-boot-elf.lds
1713         $(Q)$(OBJCOPY) -I binary $(PLATFORM_ELFFLAGS) $< u-boot-elf.o
1714         $(call if_changed,u-boot-elf)
1715
1716 u-boot-elf.lds: arch/u-boot-elf.lds prepare FORCE
1717         $(call if_changed_dep,cpp_lds)
1718
1719 # MediaTek's ARM-based u-boot needs a header to contains its load address
1720 # which is parsed by the BootROM.
1721 # If the SPL build is enabled, the header will be added to the spl binary,
1722 # and the spl binary and the u-boot.img will be combined into one file.
1723 # Otherwise the header will be added to the u-boot.bin directly.
1724
1725 ifeq ($(CONFIG_SPL),y)
1726 spl/u-boot-spl-mtk.bin: spl/u-boot-spl
1727
1728 u-boot-mtk.bin: u-boot.dtb u-boot.img spl/u-boot-spl-mtk.bin FORCE
1729         $(call if_changed,binman)
1730 else
1731 MKIMAGEFLAGS_u-boot-mtk.bin = -T mtk_image \
1732         -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE) \
1733         -n "$(patsubst "%",%,$(CONFIG_MTK_BROM_HEADER_INFO))"
1734
1735 u-boot-mtk.bin: u-boot.bin FORCE
1736         $(call if_changed,mkimage)
1737 endif
1738
1739 quiet_cmd_endian_swap = SWAP    $@
1740       cmd_endian_swap = $(srctree)/tools/endian-swap.py $< $@
1741
1742 u-boot-swap.bin: u-boot.bin FORCE
1743         $(call if_changed,endian_swap)
1744
1745 ARCH_POSTLINK := $(wildcard $(srctree)/arch/$(ARCH)/Makefile.postlink)
1746
1747 # Rule to link u-boot
1748 # May be overridden by arch/$(ARCH)/config.mk
1749 quiet_cmd_u-boot__ ?= LD      $@
1750       cmd_u-boot__ ?= $(LD) $(KBUILD_LDFLAGS) $(LDFLAGS_u-boot) -o $@ \
1751       -T u-boot.lds $(u-boot-init)                             \
1752       --start-group $(u-boot-main) --end-group                 \
1753       $(PLATFORM_LIBS) -Map u-boot.map;                        \
1754       $(if $(ARCH_POSTLINK), $(MAKE) -f $(ARCH_POSTLINK) $@, true)
1755
1756 quiet_cmd_smap = GEN     common/system_map.o
1757 cmd_smap = \
1758         smap=`$(call SYSTEM_MAP,u-boot) | \
1759                 awk '$$2 ~ /[tTwW]/ {printf $$1 $$3 "\\\\000"}'` ; \
1760         $(CC) $(c_flags) -DSYSTEM_MAP="\"$${smap}\"" \
1761                 -c $(srctree)/common/system_map.c -o common/system_map.o
1762
1763 u-boot: $(u-boot-init) $(u-boot-main) u-boot.lds FORCE
1764         +$(call if_changed,u-boot__)
1765 ifeq ($(CONFIG_KALLSYMS),y)
1766         $(call cmd,smap)
1767         $(call cmd,u-boot__) common/system_map.o
1768 endif
1769
1770 ifeq ($(CONFIG_RISCV),y)
1771         @tools/prelink-riscv $@ 0
1772 endif
1773
1774 quiet_cmd_sym ?= SYM     $@
1775       cmd_sym ?= $(OBJDUMP) -t $< > $@
1776 u-boot.sym: u-boot FORCE
1777         $(call if_changed,sym)
1778
1779 # The actual objects are generated when descending,
1780 # make sure no implicit rule kicks in
1781 $(sort $(u-boot-init) $(u-boot-main)): $(u-boot-dirs) ;
1782
1783 # Handle descending into subdirectories listed in $(u-boot-dirs)
1784 # Preset locale variables to speed up the build process. Limit locale
1785 # tweaks to this spot to avoid wrong language settings when running
1786 # make menuconfig etc.
1787 # Error messages still appears in the original language
1788
1789 PHONY += $(u-boot-dirs)
1790 $(u-boot-dirs): prepare scripts
1791         $(Q)$(MAKE) $(build)=$@
1792
1793 tools: prepare
1794 # The "tools" are needed early
1795 $(filter-out tools, $(u-boot-dirs)): tools
1796 # The "examples" conditionally depend on U-Boot (say, when USE_PRIVATE_LIBGCC
1797 # is "yes"), so compile examples after U-Boot is compiled.
1798 examples: $(filter-out examples, $(u-boot-dirs))
1799
1800 define filechk_uboot.release
1801         echo "$(UBOOTVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))"
1802 endef
1803
1804 # Store (new) UBOOTRELEASE string in include/config/uboot.release
1805 include/config/uboot.release: include/config/auto.conf FORCE
1806         $(call filechk,uboot.release)
1807
1808
1809 # Things we need to do before we recursively start building the kernel
1810 # or the modules are listed in "prepare".
1811 # A multi level approach is used. prepareN is processed before prepareN-1.
1812 # archprepare is used in arch Makefiles and when processed asm symlink,
1813 # version.h and scripts_basic is processed / created.
1814
1815 # Listed in dependency order
1816 PHONY += prepare archprepare prepare0 prepare1 prepare2 prepare3
1817
1818 # prepare3 is used to check if we are building in a separate output directory,
1819 # and if so do:
1820 # 1) Check that make has not been executed in the kernel src $(srctree)
1821 prepare3: include/config/uboot.release
1822 ifneq ($(KBUILD_SRC),)
1823         @$(kecho) '  Using $(srctree) as source for U-Boot'
1824         $(Q)if [ -f $(srctree)/.config -o -d $(srctree)/include/config ]; then \
1825                 echo >&2 "  $(srctree) is not clean, please run 'make mrproper'"; \
1826                 echo >&2 "  in the '$(srctree)' directory.";\
1827                 /bin/false; \
1828         fi;
1829 endif
1830
1831 # prepare2 creates a makefile if using a separate output directory
1832 prepare2: prepare3 outputmakefile cfg
1833
1834 prepare1: prepare2 $(version_h) $(timestamp_h) $(dt_h) \
1835                    include/config/auto.conf
1836 ifeq ($(wildcard $(LDSCRIPT)),)
1837         @echo >&2 "  Could not find linker script."
1838         @/bin/false
1839 endif
1840
1841 ifeq ($(CONFIG_USE_DEFAULT_ENV_FILE),y)
1842 prepare1: $(defaultenv_h)
1843 endif
1844
1845 archprepare: prepare1 scripts_basic
1846
1847 prepare0: archprepare FORCE
1848         $(Q)$(MAKE) $(build)=.
1849
1850 # All the preparing..
1851 prepare: prepare0
1852
1853 # Generate some files
1854 # ---------------------------------------------------------------------------
1855
1856 define filechk_version.h
1857         (echo \#define PLAIN_VERSION \"$(UBOOTRELEASE)\"; \
1858         echo \#define U_BOOT_VERSION \"U-Boot \" PLAIN_VERSION; \
1859         echo \#define CC_VERSION_STRING \"$$(LC_ALL=C $(CC) --version | head -n 1)\"; \
1860         echo \#define LD_VERSION_STRING \"$$(LC_ALL=C $(LD) --version | head -n 1)\"; )
1861 endef
1862
1863 # The SOURCE_DATE_EPOCH mechanism requires a date that behaves like GNU date.
1864 # The BSD date on the other hand behaves different and would produce errors
1865 # with the misused '-d' switch.  Respect that and search a working date with
1866 # well known pre- and suffixes for the GNU variant of date.
1867 define filechk_timestamp.h
1868         (if test -n "$${SOURCE_DATE_EPOCH}"; then \
1869                 SOURCE_DATE="@$${SOURCE_DATE_EPOCH}"; \
1870                 DATE=""; \
1871                 for date in gdate date.gnu date; do \
1872                         $${date} -u -d "$${SOURCE_DATE}" >/dev/null 2>&1 && DATE="$${date}"; \
1873                 done; \
1874                 if test -n "$${DATE}"; then \
1875                         LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_DATE "%b %d %C%y"'; \
1876                         LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_TIME "%T"'; \
1877                         LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_TZ "%z"'; \
1878                         LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_DMI_DATE "%m/%d/%Y"'; \
1879                         LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_BUILD_DATE 0x%Y%m%d'; \
1880                 else \
1881                         return 42; \
1882                 fi; \
1883         else \
1884                 LC_ALL=C date +'#define U_BOOT_DATE "%b %d %C%y"'; \
1885                 LC_ALL=C date +'#define U_BOOT_TIME "%T"'; \
1886                 LC_ALL=C date +'#define U_BOOT_TZ "%z"'; \
1887                 LC_ALL=C date +'#define U_BOOT_DMI_DATE "%m/%d/%Y"'; \
1888                 LC_ALL=C date +'#define U_BOOT_BUILD_DATE 0x%Y%m%d'; \
1889         fi)
1890 endef
1891
1892 define filechk_defaultenv.h
1893         (grep -v '^#' | \
1894          grep -v '^$$' | \
1895          tr '\n' '\0' | \
1896          sed -e 's/\\\x0\s*//g' | \
1897          xxd -i ; echo ", 0x00" ; )
1898 endef
1899
1900 define filechk_dt.h
1901         (if test -n "$${DEVICE_TREE}"; then \
1902                 echo \#define DEVICE_TREE \"$(DEVICE_TREE)\"; \
1903         else \
1904                 echo \#define DEVICE_TREE CONFIG_DEFAULT_DEVICE_TREE; \
1905         fi)
1906 endef
1907
1908 $(version_h): include/config/uboot.release FORCE
1909         $(call filechk,version.h)
1910
1911 $(timestamp_h): $(srctree)/Makefile FORCE
1912         $(call filechk,timestamp.h)
1913
1914 $(dt_h): $(srctree)/Makefile FORCE
1915         $(call filechk,dt.h)
1916
1917 $(defaultenv_h): $(CONFIG_DEFAULT_ENV_FILE:"%"=%) FORCE
1918         $(call filechk,defaultenv.h)
1919
1920 # ---------------------------------------------------------------------------
1921 quiet_cmd_cpp_lds = LDS     $@
1922 cmd_cpp_lds = $(CPP) -Wp,-MD,$(depfile) $(cpp_flags) $(LDPPFLAGS) \
1923                 -D__ASSEMBLY__ -x assembler-with-cpp -std=c99 -P -o $@ $<
1924
1925 u-boot.lds: $(LDSCRIPT) prepare FORCE
1926         $(call if_changed_dep,cpp_lds)
1927
1928 spl/u-boot-spl.bin: spl/u-boot-spl
1929         @:
1930         $(SPL_SIZE_CHECK)
1931
1932 spl/u-boot-spl: tools prepare \
1933                 $(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_SPL_OF_PLATDATA),dts/dt.dtb) \
1934                 $(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_TPL_OF_PLATDATA),dts/dt.dtb)
1935         $(Q)$(MAKE) obj=spl -f $(srctree)/scripts/Makefile.spl all
1936
1937 spl/sunxi-spl.bin: spl/u-boot-spl
1938         @:
1939
1940 spl/sunxi-spl-with-ecc.bin: spl/sunxi-spl.bin
1941         @:
1942
1943 spl/u-boot-spl.sfp: spl/u-boot-spl
1944         @:
1945
1946 spl/boot.bin: spl/u-boot-spl
1947         @:
1948
1949 tpl/u-boot-tpl.bin: tools prepare \
1950                 $(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_SPL_OF_PLATDATA),dts/dt.dtb)
1951         $(Q)$(MAKE) obj=tpl -f $(srctree)/scripts/Makefile.spl all
1952         $(TPL_SIZE_CHECK)
1953
1954 TAG_SUBDIRS := $(patsubst %,$(srctree)/%,$(u-boot-dirs) include)
1955
1956 FIND := find
1957 FINDFLAGS := -L
1958
1959 tags ctags:
1960                 ctags -w -o ctags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \
1961                                                 -name '*.[chS]' -print`
1962                 ln -s ctags tags
1963
1964 etags:
1965                 etags -a -o etags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \
1966                                                 -name '*.[chS]' -print`
1967 cscope:
1968                 $(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) -name '*.[chS]' -print > \
1969                                                 cscope.files
1970                 @find $(TAG_SUBDIRS) -name '*.[chS]' -type l -print | \
1971                         grep -xvf - cscope.files > cscope.files.no-symlinks; \
1972                 mv cscope.files.no-symlinks cscope.files
1973                 cscope -b -q -k
1974
1975 SYSTEM_MAP = \
1976                 $(NM) $1 | \
1977                 grep -v '\(compiled\)\|\(\.o$$\)\|\( [aUw] \)\|\(\.\.ng$$\)\|\(LASH[RL]DI\)' | \
1978                 LC_ALL=C sort
1979 System.map:     u-boot
1980                 @$(call SYSTEM_MAP,$<) > $@
1981
1982 #########################################################################
1983
1984 # ARM relocations should all be R_ARM_RELATIVE (32-bit) or
1985 # R_AARCH64_RELATIVE (64-bit).
1986 checkarmreloc: u-boot
1987         @RELOC="`$(CROSS_COMPILE)readelf -r -W $< | cut -d ' ' -f 4 | \
1988                 grep R_A | sort -u`"; \
1989         if test "$$RELOC" != "R_ARM_RELATIVE" -a \
1990                  "$$RELOC" != "R_AARCH64_RELATIVE"; then \
1991                 echo "$< contains unexpected relocations: $$RELOC"; \
1992                 false; \
1993         fi
1994
1995 tools/version.h: include/version.h
1996         $(Q)mkdir -p $(dir $@)
1997         $(call if_changed,copy)
1998
1999 envtools: scripts_basic $(version_h) $(timestamp_h) tools/version.h
2000         $(Q)$(MAKE) $(build)=tools/env
2001
2002 tools-only: export TOOLS_ONLY=y
2003 tools-only: scripts_basic $(version_h) $(timestamp_h) tools/version.h
2004         $(Q)$(MAKE) $(build)=tools
2005
2006 tools-all: export HOST_TOOLS_ALL=y
2007 tools-all: envtools tools ;
2008
2009 cross_tools: export CROSS_BUILD_TOOLS=y
2010 cross_tools: tools ;
2011
2012 .PHONY : CHANGELOG
2013 CHANGELOG:
2014         git log --no-merges U-Boot-1_1_5.. | \
2015         unexpand -a | sed -e 's/\s\s*$$//' > $@
2016
2017 #########################################################################
2018
2019 ###
2020 # Cleaning is done on three levels.
2021 # make clean     Delete most generated files
2022 #                Leave enough to build external modules
2023 # make mrproper  Delete the current configuration, and all generated files
2024 # make distclean Remove editor backup files, patch leftover files and the like
2025
2026 # Directories & files removed with 'make clean'
2027 CLEAN_DIRS  += $(MODVERDIR) \
2028                $(foreach d, spl tpl, $(patsubst %,$d/%, \
2029                         $(filter-out include, $(shell ls -1 $d 2>/dev/null))))
2030
2031 CLEAN_FILES += include/bmp_logo.h include/bmp_logo_data.h tools/version.h \
2032                boot* u-boot* MLO* SPL System.map fit-dtb.blob* \
2033                u-boot-ivt.img.log u-boot-dtb.imx.log SPL.log u-boot.imx.log \
2034                lpc32xx-* bl31.c bl31.elf bl31_*.bin image.map tispl.bin* \
2035                idbloader.img flash.bin flash.log defconfig
2036
2037 # Directories & files removed with 'make mrproper'
2038 MRPROPER_DIRS  += include/config include/generated spl tpl \
2039                   .tmp_objdiff
2040 MRPROPER_FILES += .config .config.old include/autoconf.mk* include/config.h \
2041                   ctags etags tags TAGS cscope* GPATH GTAGS GRTAGS GSYMS \
2042                   drivers/video/fonts/*.S
2043
2044 # clean - Delete most, but leave enough to build external modules
2045 #
2046 clean: rm-dirs  := $(CLEAN_DIRS)
2047 clean: rm-files := $(CLEAN_FILES)
2048
2049 clean-dirs      := $(foreach f,$(u-boot-alldirs),$(if $(wildcard $(srctree)/$f/Makefile),$f))
2050
2051 clean-dirs      := $(addprefix _clean_, $(clean-dirs))
2052
2053 PHONY += $(clean-dirs) clean archclean
2054 $(clean-dirs):
2055         $(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$@)
2056
2057 clean: $(clean-dirs)
2058         $(call cmd,rmdirs)
2059         $(call cmd,rmfiles)
2060         @find $(if $(KBUILD_EXTMOD), $(KBUILD_EXTMOD), .) $(RCS_FIND_IGNORE) \
2061                 \( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \
2062                 -o -name '*.ko.*' -o -name '*.su' -o -name '*.pyc' \
2063                 -o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \
2064                 -o -name '*.lex.c' -o -name '*.tab.[ch]' \
2065                 -o -name '*.asn1.[ch]' \
2066                 -o -name '*.symtypes' -o -name 'modules.order' \
2067                 -o -name modules.builtin -o -name '.tmp_*.o.*' \
2068                 -o -name 'dsdt.aml' -o -name 'dsdt.asl.tmp' -o -name 'dsdt.c' \
2069                 -o -name '*.efi' -o -name '*.gcno' -o -name '*.so' \) \
2070                 -type f -print | xargs rm -f
2071
2072 # mrproper - Delete all generated files, including .config
2073 #
2074 mrproper: rm-dirs  := $(wildcard $(MRPROPER_DIRS))
2075 mrproper: rm-files := $(wildcard $(MRPROPER_FILES))
2076 mrproper-dirs      := $(addprefix _mrproper_,scripts)
2077
2078 PHONY += $(mrproper-dirs) mrproper archmrproper
2079 $(mrproper-dirs):
2080         $(Q)$(MAKE) $(clean)=$(patsubst _mrproper_%,%,$@)
2081
2082 mrproper: clean $(mrproper-dirs)
2083         $(call cmd,rmdirs)
2084         $(call cmd,rmfiles)
2085         @rm -f arch/*/include/asm/arch
2086
2087 # distclean
2088 #
2089 PHONY += distclean
2090
2091 distclean: mrproper
2092         @find $(srctree) $(RCS_FIND_IGNORE) \
2093                 \( -name '*.orig' -o -name '*.rej' -o -name '*~' \
2094                 -o -name '*.bak' -o -name '#*#' -o -name '.*.orig' \
2095                 -o -name '.*.rej' -o -name '*%' -o -name 'core' \
2096                 -o -name '*.pyc' \) \
2097                 -type f -print | xargs rm -f
2098         @rm -f boards.cfg CHANGELOG
2099
2100 backup:
2101         F=`basename $(srctree)` ; cd .. ; \
2102         gtar --force-local -zcvf `LC_ALL=C date "+$$F-%Y-%m-%d-%T.tar.gz"` $$F
2103
2104 help:
2105         @echo  'Cleaning targets:'
2106         @echo  '  clean           - Remove most generated files but keep the config'
2107         @echo  '  mrproper        - Remove all generated files + config + various backup files'
2108         @echo  '  distclean       - mrproper + remove editor backup and patch files'
2109         @echo  ''
2110         @echo  'Configuration targets:'
2111         @$(MAKE) -f $(srctree)/scripts/kconfig/Makefile help
2112         @echo  ''
2113         @echo  'Test targets:'
2114         @echo  ''
2115         @echo  '  check           - Run all automated tests that use sandbox'
2116         @echo  '  qcheck          - Run quick automated tests that use sandbox'
2117         @echo  '  tcheck          - Run quick automated tests on tools'
2118         @echo  ''
2119         @echo  'Other generic targets:'
2120         @echo  '  all             - Build all necessary images depending on configuration'
2121         @echo  '  tests           - Build U-Boot for sandbox and run tests'
2122         @echo  '* u-boot          - Build the bare u-boot'
2123         @echo  '  dir/            - Build all files in dir and below'
2124         @echo  '  dir/file.[oisS] - Build specified target only'
2125         @echo  '  dir/file.lst    - Build specified mixed source/assembly target only'
2126         @echo  '                    (requires a recent binutils and recent build (System.map))'
2127         @echo  '  tags/ctags      - Generate ctags file for editors'
2128         @echo  '  etags           - Generate etags file for editors'
2129         @echo  '  cscope          - Generate cscope index'
2130         @echo  '  ubootrelease    - Output the release version string (use with make -s)'
2131         @echo  '  ubootversion    - Output the version stored in Makefile (use with make -s)'
2132         @echo  "  cfg             - Don't build, just create the .cfg files"
2133         @echo  "  envtools        - Build only the target-side environment tools"
2134         @echo  ''
2135         @echo  'Static analysers'
2136         @echo  '  checkstack      - Generate a list of stack hogs'
2137         @echo  '  coccicheck      - Execute static code analysis with Coccinelle'
2138         @echo  ''
2139         @echo  'Documentation targets:'
2140         @$(MAKE) -f $(srctree)/doc/Makefile dochelp
2141         @echo  ''
2142         @echo  '  make V=0|1 [targets] 0 => quiet build (default), 1 => verbose build'
2143         @echo  '  make V=2   [targets] 2 => give reason for rebuild of target'
2144         @echo  '  make O=dir [targets] Locate all output files in "dir", including .config'
2145         @echo  '  make C=1   [targets] Check all c source with $$CHECK (sparse by default)'
2146         @echo  '  make C=2   [targets] Force check of all c source with $$CHECK'
2147         @echo  '  make RECORDMCOUNT_WARN=1 [targets] Warn about ignored mcount sections'
2148         @echo  '  make W=n   [targets] Enable extra gcc checks, n=1,2,3 where'
2149         @echo  '                1: warnings which may be relevant and do not occur too often'
2150         @echo  '                2: warnings which occur quite often but may still be relevant'
2151         @echo  '                3: more obscure warnings, can most likely be ignored'
2152         @echo  '                Multiple levels can be combined with W=12 or W=123'
2153         @echo  ''
2154         @echo  'Execute "make" or "make all" to build all targets marked with [*] '
2155         @echo  'For further info see the ./README file'
2156
2157 tests check:
2158         $(srctree)/test/run
2159
2160 qcheck:
2161         $(srctree)/test/run quick
2162
2163 tcheck:
2164         $(srctree)/test/run tools
2165
2166 # Documentation targets
2167 # ---------------------------------------------------------------------------
2168 DOC_TARGETS := xmldocs latexdocs pdfdocs htmldocs epubdocs cleandocs \
2169                linkcheckdocs dochelp refcheckdocs
2170 PHONY += $(DOC_TARGETS)
2171 $(DOC_TARGETS): scripts_basic FORCE
2172         $(Q)$(MAKE) $(build)=doc $@
2173
2174 endif #ifeq ($(config-targets),1)
2175 endif #ifeq ($(mixed-targets),1)
2176
2177 PHONY += checkstack ubootrelease ubootversion
2178
2179 checkstack:
2180         $(OBJDUMP) -d u-boot $$(find . -name u-boot-spl) | \
2181         $(PERL) $(src)/scripts/checkstack.pl $(ARCH)
2182
2183 ubootrelease:
2184         @echo "$(UBOOTVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))"
2185
2186 ubootversion:
2187         @echo $(UBOOTVERSION)
2188
2189 # Single targets
2190 # ---------------------------------------------------------------------------
2191 # Single targets are compatible with:
2192 # - build with mixed source and output
2193 # - build with separate output dir 'make O=...'
2194 # - external modules
2195 #
2196 #  target-dir => where to store outputfile
2197 #  build-dir  => directory in kernel source tree to use
2198
2199 ifeq ($(KBUILD_EXTMOD),)
2200         build-dir  = $(patsubst %/,%,$(dir $@))
2201         target-dir = $(dir $@)
2202 else
2203         zap-slash=$(filter-out .,$(patsubst %/,%,$(dir $@)))
2204         build-dir  = $(KBUILD_EXTMOD)$(if $(zap-slash),/$(zap-slash))
2205         target-dir = $(if $(KBUILD_EXTMOD),$(dir $<),$(dir $@))
2206 endif
2207
2208 %.s: %.c prepare scripts FORCE
2209         $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
2210 %.i: %.c prepare scripts FORCE
2211         $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
2212 %.o: %.c prepare scripts FORCE
2213         $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
2214 %.lst: %.c prepare scripts FORCE
2215         $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
2216 %.s: %.S prepare scripts FORCE
2217         $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
2218 %.o: %.S prepare scripts FORCE
2219         $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
2220 %.symtypes: %.c prepare scripts FORCE
2221         $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
2222
2223 # Modules
2224 /: prepare scripts FORCE
2225         $(cmd_crmodverdir)
2226         $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \
2227         $(build)=$(build-dir)
2228 %/: prepare scripts FORCE
2229         $(cmd_crmodverdir)
2230         $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \
2231         $(build)=$(build-dir)
2232 %.ko: prepare scripts FORCE
2233         $(cmd_crmodverdir)
2234         $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1)   \
2235         $(build)=$(build-dir) $(@:.ko=.o)
2236         $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost
2237
2238 quiet_cmd_genenv = GENENV $@
2239 cmd_genenv = $(OBJCOPY) --dump-section .rodata.default_environment=$@ env/common.o; \
2240         sed --in-place -e 's/\x00/\x0A/g' $@
2241
2242 u-boot-initial-env: u-boot.bin
2243         $(call if_changed,genenv)
2244
2245 # Consistency checks
2246 # ---------------------------------------------------------------------------
2247
2248 PHONY += coccicheck
2249
2250 coccicheck:
2251         $(Q)$(CONFIG_SHELL) $(srctree)/scripts/$@
2252
2253 # FIXME Should go into a make.lib or something
2254 # ===========================================================================
2255
2256 quiet_cmd_rmdirs = $(if $(wildcard $(rm-dirs)),CLEAN   $(wildcard $(rm-dirs)))
2257       cmd_rmdirs = rm -rf $(rm-dirs)
2258
2259 quiet_cmd_rmfiles = $(if $(wildcard $(rm-files)),CLEAN   $(wildcard $(rm-files)))
2260       cmd_rmfiles = rm -f $(rm-files)
2261
2262 # read all saved command lines
2263
2264 cmd_files := $(wildcard .*.cmd $(foreach f,$(sort $(targets)),$(dir $(f)).$(notdir $(f)).cmd))
2265
2266 ifneq ($(cmd_files),)
2267   $(cmd_files): ;       # Do not try to update included dependency files
2268   include $(cmd_files)
2269 endif
2270
2271 endif   # skip-makefile
2272
2273 PHONY += FORCE
2274 FORCE:
2275
2276 # Declare the contents of the PHONY variable as phony.  We keep that
2277 # information in a variable so we can use it in if_changed and friends.
2278 .PHONY: $(PHONY)