Makefile

   1 # SPDX-License-Identifier: GPL-2.0+
   2
   3 VERSION = 2023
   4 PATCHLEVEL = 04
   5 SUBLEVEL =
   6 EXTRAVERSION =
   7 NAME =
   8
   9 # *DOCUMENTATION*
  10 # To see a list of typical targets execute "make help"
  11 # More info can be located in ./README
  12 # Comments in this file are targeted only to the developer, do not
  13 # expect to learn how to build the kernel reading this file.
  14
  15 # Do not use make's built-in rules and variables
  16 # (this increases performance and avoids hard-to-debug behaviour)
  17 MAKEFLAGS += -rR
  18
  19 # Determine target architecture for the sandbox
  20 include include/host_arch.h
  21 ifeq ("", "$(CROSS_COMPILE)")
  22   MK_ARCH="${shell uname -m}"
  23 else
  24   MK_ARCH="${shell echo $(CROSS_COMPILE) | sed -n 's/^[[:space:]]*\([^\/]*\/\)*\([^-]*\)-[^[:space:]]*/\2/p'}"
  25 endif
  26 unexport HOST_ARCH
  27 ifeq ("x86_64", $(MK_ARCH))
  28   export HOST_ARCH=$(HOST_ARCH_X86_64)
  29 else ifneq (,$(findstring $(MK_ARCH), "i386" "i486" "i586" "i686"))
  30   export HOST_ARCH=$(HOST_ARCH_X86)
  31 else ifneq (,$(findstring $(MK_ARCH), "aarch64" "armv8l"))
  32   export HOST_ARCH=$(HOST_ARCH_AARCH64)
  33 else ifneq (,$(findstring $(MK_ARCH), "arm" "armv7" "armv7a" "armv7l"))
  34   export HOST_ARCH=$(HOST_ARCH_ARM)
  35 else ifeq ("riscv32", $(MK_ARCH))
  36   export HOST_ARCH=$(HOST_ARCH_RISCV32)
  37 else ifeq ("riscv64", $(MK_ARCH))
  38   export HOST_ARCH=$(HOST_ARCH_RISCV64)
  39 endif
  40 undefine MK_ARCH
  41
  42 # Avoid funny character set dependencies
  43 unexport LC_ALL
  44 LC_COLLATE=C
  45 LC_NUMERIC=C
  46 export LC_COLLATE LC_NUMERIC
  47
  48 # Avoid interference with shell env settings
  49 unexport GREP_OPTIONS
  50
  51 # We are using a recursive build, so we need to do a little thinking
  52 # to get the ordering right.
  53 #
  54 # Most importantly: sub-Makefiles should only ever modify files in
  55 # their own directory. If in some directory we have a dependency on
  56 # a file in another dir (which doesn't happen often, but it's often
  57 # unavoidable when linking the built-in.o targets which finally
  58 # turn into vmlinux), we will call a sub make in that other dir, and
  59 # after that we are sure that everything which is in that other dir
  60 # is now up to date.
  61 #
  62 # The only cases where we need to modify files which have global
  63 # effects are thus separated out and done before the recursive
  64 # descending is started. They are now explicitly listed as the
  65 # prepare rule.
  66
  67 # Beautify output
  68 # ---------------------------------------------------------------------------
  69 #
  70 # Normally, we echo the whole command before executing it. By making
  71 # that echo $($(quiet)$(cmd)), we now have the possibility to set
  72 # $(quiet) to choose other forms of output instead, e.g.
  73 #
  74 #         quiet_cmd_cc_o_c = Compiling $(RELDIR)/$@
  75 #         cmd_cc_o_c       = $(CC) $(c_flags) -c -o $@ $<
  76 #
  77 # If $(quiet) is empty, the whole command will be printed.
  78 # If it is set to "quiet_", only the short version will be printed.
  79 # If it is set to "silent_", nothing will be printed at all, since
  80 # the variable $(silent_cmd_cc_o_c) doesn't exist.
  81 #
  82 # A simple variant is to prefix commands with $(Q) - that's useful
  83 # for commands that shall be hidden in non-verbose mode.
  84 #
  85 #       $(Q)ln $@ :<
  86 #
  87 # If KBUILD_VERBOSE equals 0 then the above command will be hidden.
  88 # If KBUILD_VERBOSE equals 1 then the above command is displayed.
  89 #
  90 # To put more focus on warnings, be less verbose as default
  91 # Use 'make V=1' to see the full commands
  92
  93 ifeq ("$(origin V)", "command line")
  94   KBUILD_VERBOSE = $(V)
  95 endif
  96 ifndef KBUILD_VERBOSE
  97   KBUILD_VERBOSE = 0
  98 endif
  99
 100 ifeq ($(KBUILD_VERBOSE),1)
 101   quiet =
 102   Q =
 103 else
 104   quiet=quiet_
 105   Q = @
 106 endif
 107
 108 # If the user is running make -s (silent mode), suppress echoing of
 109 # commands
 110
 111 ifneq ($(filter 4.%,$(MAKE_VERSION)),)  # make-4
 112 ifneq ($(filter %s ,$(firstword x$(MAKEFLAGS))),)
 113   quiet=silent_
 114 endif
 115 else                                    # make-3.8x
 116 ifneq ($(filter s% -s%,$(MAKEFLAGS)),)
 117   quiet=silent_
 118 endif
 119 endif
 120
 121 export quiet Q KBUILD_VERBOSE
 122
 123 # kbuild supports saving output files in a separate directory.
 124 # To locate output files in a separate directory two syntaxes are supported.
 125 # In both cases the working directory must be the root of the kernel src.
 126 # 1) O=
 127 # Use "make O=dir/to/store/output/files/"
 128 #
 129 # 2) Set KBUILD_OUTPUT
 130 # Set the environment variable KBUILD_OUTPUT to point to the directory
 131 # where the output files shall be placed.
 132 # export KBUILD_OUTPUT=dir/to/store/output/files/
 133 # make
 134 #
 135 # The O= assignment takes precedence over the KBUILD_OUTPUT environment
 136 # variable.
 137
 138 # KBUILD_SRC is set on invocation of make in OBJ directory
 139 # KBUILD_SRC is not intended to be used by the regular user (for now)
 140 ifeq ($(KBUILD_SRC),)
 141
 142 # OK, Make called in directory where kernel src resides
 143 # Do we want to locate output files in a separate directory?
 144 ifeq ("$(origin O)", "command line")
 145   KBUILD_OUTPUT := $(O)
 146 endif
 147
 148 # That's our default target when none is given on the command line
 149 PHONY := _all
 150 _all:
 151
 152 # Cancel implicit rules on top Makefile
 153 $(CURDIR)/Makefile Makefile: ;
 154
 155 ifneq ($(KBUILD_OUTPUT),)
 156 # Invoke a second make in the output directory, passing relevant variables
 157 # check that the output directory actually exists
 158 saved-output := $(KBUILD_OUTPUT)
 159 KBUILD_OUTPUT := $(shell mkdir -p $(KBUILD_OUTPUT) && cd $(KBUILD_OUTPUT) \
 160                                                                 && /bin/pwd)
 161 $(if $(KBUILD_OUTPUT),, \
 162      $(error failed to create output directory "$(saved-output)"))
 163
 164 # Look for make include files relative to root of kernel src
 165 #
 166 # This does not become effective immediately because MAKEFLAGS is re-parsed
 167 # once after the Makefile is read.  It is OK since we are going to invoke
 168 # 'sub-make' below.
 169 MAKEFLAGS += --include-dir=$(CURDIR)
 170
 171 PHONY += $(MAKECMDGOALS) sub-make
 172
 173 $(filter-out _all sub-make $(CURDIR)/Makefile, $(MAKECMDGOALS)) _all: sub-make
 174         @:
 175
 176 sub-make: FORCE
 177         $(Q)$(MAKE) -C $(KBUILD_OUTPUT) KBUILD_SRC=$(CURDIR) \
 178         -f $(CURDIR)/Makefile $(filter-out _all sub-make,$(MAKECMDGOALS))
 179
 180 # Leave processing to above invocation of make
 181 skip-makefile := 1
 182 endif # ifneq ($(KBUILD_OUTPUT),)
 183 endif # ifeq ($(KBUILD_SRC),)
 184
 185 # We process the rest of the Makefile if this is the final invocation of make
 186 ifeq ($(skip-makefile),)
 187
 188 # Do not print "Entering directory ...",
 189 # but we want to display it when entering to the output directory
 190 # so that IDEs/editors are able to understand relative filenames.
 191 MAKEFLAGS += --no-print-directory
 192
 193 # Call a source code checker (by default, "sparse") as part of the
 194 # C compilation.
 195 #
 196 # Use 'make C=1' to enable checking of only re-compiled files.
 197 # Use 'make C=2' to enable checking of *all* source files, regardless
 198 # of whether they are re-compiled or not.
 199 #
 200 # See the file "doc/sparse.txt" for more details, including
 201 # where to get the "sparse" utility.
 202
 203 ifeq ("$(origin C)", "command line")
 204   KBUILD_CHECKSRC = $(C)
 205 endif
 206 ifndef KBUILD_CHECKSRC
 207   KBUILD_CHECKSRC = 0
 208 endif
 209
 210 # Use make M=dir to specify directory of external module to build
 211 # Old syntax make ... SUBDIRS=$PWD is still supported
 212 # Setting the environment variable KBUILD_EXTMOD take precedence
 213 ifdef SUBDIRS
 214   KBUILD_EXTMOD ?= $(SUBDIRS)
 215 endif
 216
 217 ifeq ("$(origin M)", "command line")
 218   KBUILD_EXTMOD := $(M)
 219 endif
 220
 221 # If building an external module we do not care about the all: rule
 222 # but instead _all depend on modules
 223 PHONY += all
 224 ifeq ($(KBUILD_EXTMOD),)
 225 _all: all
 226 else
 227 _all: modules
 228 endif
 229
 230 ifeq ($(KBUILD_SRC),)
 231         # building in the source tree
 232         srctree := .
 233 else
 234         ifeq ($(KBUILD_SRC)/,$(dir $(CURDIR)))
 235                 # building in a subdirectory of the source tree
 236                 srctree := ..
 237         else
 238                 srctree := $(KBUILD_SRC)
 239         endif
 240 endif
 241 objtree         := .
 242 src             := $(srctree)
 243 obj             := $(objtree)
 244
 245 VPATH           := $(srctree)$(if $(KBUILD_EXTMOD),:$(KBUILD_EXTMOD))
 246
 247 export srctree objtree VPATH
 248
 249 # Make sure CDPATH settings don't interfere
 250 unexport CDPATH
 251
 252 #########################################################################
 253
 254 HOSTARCH := $(shell uname -m | \
 255         sed -e s/i.86/x86/ \
 256             -e s/sun4u/sparc64/ \
 257             -e s/arm.*/arm/ \
 258             -e s/sa110/arm/ \
 259             -e s/ppc64/powerpc/ \
 260             -e s/ppc/powerpc/ \
 261             -e s/macppc/powerpc/\
 262             -e s/sh.*/sh/)
 263
 264 HOSTOS := $(shell uname -s | tr '[:upper:]' '[:lower:]' | \
 265             sed -e 's/\(cygwin\).*/cygwin/')
 266
 267 export  HOSTARCH HOSTOS
 268
 269 #########################################################################
 270
 271 # set default to nothing for native builds
 272 ifeq ($(HOSTARCH),$(ARCH))
 273 CROSS_COMPILE ?=
 274 endif
 275
 276 KCONFIG_CONFIG  ?= .config
 277 export KCONFIG_CONFIG
 278
 279 # SHELL used by kbuild
 280 CONFIG_SHELL := $(shell if [ -x "$$BASH" ]; then echo $$BASH; \
 281           else if [ -x /bin/bash ]; then echo /bin/bash; \
 282           else echo sh; fi ; fi)
 283
 284 HOST_LFS_CFLAGS := $(shell getconf LFS_CFLAGS 2>/dev/null)
 285 HOST_LFS_LDFLAGS := $(shell getconf LFS_LDFLAGS 2>/dev/null)
 286 HOST_LFS_LIBS := $(shell getconf LFS_LIBS 2>/dev/null)
 287
 288 HOSTCC       = cc
 289 HOSTCXX      = c++
 290 KBUILD_HOSTCFLAGS   := -Wall -Wstrict-prototypes -O2 -fomit-frame-pointer \
 291                 $(HOST_LFS_CFLAGS) $(HOSTCFLAGS)
 292 KBUILD_HOSTCXXFLAGS := -O2 $(HOST_LFS_CFLAGS) $(HOSTCXXFLAGS)
 293 KBUILD_HOSTLDFLAGS  := $(HOST_LFS_LDFLAGS) $(HOSTLDFLAGS)
 294 KBUILD_HOSTLDLIBS   := $(HOST_LFS_LIBS) $(HOSTLDLIBS)
 295
 296 # With the move to GCC 6, we have implicitly upgraded our language
 297 # standard to GNU11 (see https://gcc.gnu.org/gcc-5/porting_to.html).
 298 # Some Linux distributions (including RHEL7, SLES13, Debian 8) still
 299 # have older compilers as their default, so we make it explicit for
 300 # these that our host tools are GNU11 (i.e. C11 w/ GNU extensions).
 301 CSTD_FLAG := -std=gnu11
 302 KBUILD_HOSTCFLAGS += $(CSTD_FLAG)
 303
 304 ifeq ($(HOSTOS),cygwin)
 305 KBUILD_HOSTCFLAGS       += -ansi
 306 endif
 307
 308 # Mac OS X / Darwin's C preprocessor is Apple specific.  It
 309 # generates numerous errors and warnings.  We want to bypass it
 310 # and use GNU C's cpp.  To do this we pass the -traditional-cpp
 311 # option to the compiler.  Note that the -traditional-cpp flag
 312 # DOES NOT have the same semantics as GNU C's flag, all it does
 313 # is invoke the GNU preprocessor in stock ANSI/ISO C fashion.
 314 #
 315 # Apple's linker is similar, thanks to the new 2 stage linking
 316 # multiple symbol definitions are treated as errors, hence the
 317 # -multiply_defined suppress option to turn off this error.
 318 #
 319 ifeq ($(HOSTOS),darwin)
 320 # get major and minor product version (e.g. '10' and '6' for Snow Leopard)
 321 DARWIN_MAJOR_VERSION    := $(shell sw_vers -productVersion | cut -f 1 -d '.')
 322 DARWIN_MINOR_VERSION    := $(shell sw_vers -productVersion | cut -f 2 -d '.')
 323
 324 os_x_before     = $(shell if [ $(DARWIN_MAJOR_VERSION) -le $(1) -a \
 325         $(DARWIN_MINOR_VERSION) -le $(2) ] ; then echo "$(3)"; else echo "$(4)"; fi ;)
 326
 327 os_x_after = $(shell if [ $(DARWIN_MAJOR_VERSION) -ge $(1) -a \
 328         $(DARWIN_MINOR_VERSION) -ge $(2) ] ; then echo "$(3)"; else echo "$(4)"; fi ;)
 329
 330 # Snow Leopards build environment has no longer restrictions as described above
 331 HOSTCC       = $(call os_x_before, 10, 5, "cc", "gcc")
 332 KBUILD_HOSTCFLAGS  += $(call os_x_before, 10, 4, "-traditional-cpp")
 333 KBUILD_HOSTLDFLAGS += $(call os_x_before, 10, 5, "-multiply_defined suppress")
 334
 335 # macOS Mojave (10.14.X)
 336 # Undefined symbols for architecture x86_64: "_PyArg_ParseTuple"
 337 KBUILD_HOSTLDFLAGS += $(call os_x_after, 10, 14, "-lpython -dynamclib", "")
 338 endif
 339
 340 # Decide whether to build built-in, modular, or both.
 341 # Normally, just do built-in.
 342
 343 KBUILD_MODULES :=
 344 KBUILD_BUILTIN := 1
 345
 346 # If we have only "make modules", don't compile built-in objects.
 347 # When we're building modules with modversions, we need to consider
 348 # the built-in objects during the descend as well, in order to
 349 # make sure the checksums are up to date before we record them.
 350
 351 ifeq ($(MAKECMDGOALS),modules)
 352   KBUILD_BUILTIN := $(if $(CONFIG_MODVERSIONS),1)
 353 endif
 354
 355 # If we have "make <whatever> modules", compile modules
 356 # in addition to whatever we do anyway.
 357 # Just "make" or "make all" shall build modules as well
 358
 359 # U-Boot does not need modules
 360 #ifneq ($(filter all _all modules,$(MAKECMDGOALS)),)
 361 #  KBUILD_MODULES := 1
 362 #endif
 363
 364 #ifeq ($(MAKECMDGOALS),)
 365 #  KBUILD_MODULES := 1
 366 #endif
 367
 368 # Check ths size of a binary:
 369 # Args:
 370 #   $1: File to check
 371 #   #2: Size limit in bytes (decimal or 0xhex)
 372 define size_check
 373         actual=$$( wc -c $1 | awk '{print $$1}'); \
 374         limit=$$( printf "%d" $2 ); \
 375         if test $$actual -gt $$limit; then \
 376                 echo "$1 exceeds file size limit:" >&2; \
 377                 echo "  limit:  $$(printf %#x $$limit) bytes" >&2; \
 378                 echo "  actual: $$(printf %#x $$actual) bytes" >&2; \
 379                 echo "  excess: $$(printf %#x $$((actual - limit))) bytes" >&2;\
 380                 exit 1; \
 381         fi
 382 endef
 383 export size_check
 384
 385 export KBUILD_MODULES KBUILD_BUILTIN
 386 export KBUILD_CHECKSRC KBUILD_SRC KBUILD_EXTMOD
 387
 388 # We need some generic definitions (do not try to remake the file).
 389 scripts/Kbuild.include: ;
 390 include scripts/Kbuild.include
 391
 392 # Make variables (CC, etc...)
 393
 394 AS              = $(CROSS_COMPILE)as
 395 # Always use GNU ld
 396 ifneq ($(shell $(CROSS_COMPILE)ld.bfd -v 2> /dev/null),)
 397 LD              = $(CROSS_COMPILE)ld.bfd
 398 else
 399 LD              = $(CROSS_COMPILE)ld
 400 endif
 401 CC              = $(CROSS_COMPILE)gcc
 402 CPP             = $(CC) -E
 403 AR              = $(CROSS_COMPILE)ar
 404 NM              = $(CROSS_COMPILE)nm
 405 LDR             = $(CROSS_COMPILE)ldr
 406 STRIP           = $(CROSS_COMPILE)strip
 407 OBJCOPY         = $(CROSS_COMPILE)objcopy
 408 OBJDUMP         = $(CROSS_COMPILE)objdump
 409 LEX             = flex
 410 YACC            = bison
 411 AWK             = awk
 412 PERL            = perl
 413 PYTHON          ?= python
 414 PYTHON2         = python2
 415 PYTHON3         ?= python3
 416
 417 # The devicetree compiler and pylibfdt are automatically built unless DTC is
 418 # provided. If DTC is provided, it is assumed the pylibfdt is available too.
 419 DTC_INTREE      := $(objtree)/scripts/dtc/dtc
 420 DTC             ?= $(DTC_INTREE)
 421 DTC_MIN_VERSION := 010406
 422
 423 CHECK           = sparse
 424
 425 CHECKFLAGS     := -D__linux__ -Dlinux -D__STDC__ -Dunix -D__unix__ \
 426                   -Wbitwise -Wno-return-void -D__CHECK_ENDIAN__ $(CF)
 427
 428 KBUILD_CPPFLAGS := -D__KERNEL__ -D__UBOOT__
 429
 430 KBUILD_CFLAGS   := -Wall -Wstrict-prototypes \
 431                    -Wno-format-security \
 432                    -fno-builtin -ffreestanding $(CSTD_FLAG)
 433 KBUILD_CFLAGS   += -fshort-wchar -fno-strict-aliasing
 434 KBUILD_AFLAGS   := -D__ASSEMBLY__
 435 KBUILD_LDFLAGS  :=
 436
 437 ifeq ($(cc-name),clang)
 438 ifneq ($(CROSS_COMPILE),)
 439 CLANG_TARGET    := --target=$(notdir $(CROSS_COMPILE:%-=%))
 440 LDPPFLAGS       += $(CLANG_TARGET)
 441 GCC_TOOLCHAIN_DIR := $(dir $(shell which $(LD)))
 442 CLANG_PREFIX    := --prefix=$(GCC_TOOLCHAIN_DIR)
 443 GCC_TOOLCHAIN   := $(realpath $(GCC_TOOLCHAIN_DIR)/..)
 444 endif
 445 ifneq ($(GCC_TOOLCHAIN),)
 446 CLANG_GCC_TC    := --gcc-toolchain=$(GCC_TOOLCHAIN)
 447 endif
 448 KBUILD_CFLAGS += $(CLANG_TARGET) $(CLANG_GCC_TC) $(CLANG_PREFIX)
 449 KBUILD_AFLAGS += $(CLANG_TARGET) $(CLANG_GCC_TC) $(CLANG_PREFIX)
 450 KBUILD_CFLAGS += $(call cc-option, -no-integrated-as)
 451 KBUILD_AFLAGS += $(call cc-option, -no-integrated-as)
 452 endif
 453
 454 # Don't generate position independent code
 455 KBUILD_CFLAGS   += $(call cc-option,-fno-PIE)
 456 KBUILD_AFLAGS   += $(call cc-option,-fno-PIE)
 457
 458 # Read UBOOTRELEASE from include/config/uboot.release (if it exists)
 459 UBOOTRELEASE = $(shell cat include/config/uboot.release 2> /dev/null)
 460 UBOOTVERSION = $(VERSION)$(if $(PATCHLEVEL),.$(PATCHLEVEL)$(if $(SUBLEVEL),.$(SUBLEVEL)))$(EXTRAVERSION)
 461
 462 export VERSION PATCHLEVEL SUBLEVEL UBOOTRELEASE UBOOTVERSION
 463 export ARCH CPU BOARD VENDOR SOC CPUDIR BOARDDIR
 464 export CONFIG_SHELL HOSTCC KBUILD_HOSTCFLAGS CROSS_COMPILE AS LD CC
 465 export CPP AR NM LDR STRIP OBJCOPY OBJDUMP KBUILD_HOSTLDFLAGS KBUILD_HOSTLDLIBS
 466 export MAKE LEX YACC AWK PERL PYTHON PYTHON2 PYTHON3
 467 export HOSTCXX KBUILD_HOSTCXXFLAGS CHECK CHECKFLAGS DTC DTC_FLAGS
 468
 469 export KBUILD_CPPFLAGS NOSTDINC_FLAGS UBOOTINCLUDE OBJCOPYFLAGS KBUILD_LDFLAGS
 470 export KBUILD_CFLAGS KBUILD_AFLAGS
 471
 472 export CC_VERSION_TEXT := $(shell $(CC) --version | head -n 1)
 473
 474 # When compiling out-of-tree modules, put MODVERDIR in the module
 475 # tree rather than in the kernel tree. The kernel tree might
 476 # even be read-only.
 477 export MODVERDIR := $(if $(KBUILD_EXTMOD),$(firstword $(KBUILD_EXTMOD))/).tmp_versions
 478
 479 # Files to ignore in find ... statements
 480
 481 export RCS_FIND_IGNORE := \( -name SCCS -o -name BitKeeper -o -name .svn -o    \
 482                           -name CVS -o -name .pc -o -name .hg -o -name .git \) \
 483                           -prune -o
 484 export RCS_TAR_IGNORE := --exclude SCCS --exclude BitKeeper --exclude .svn \
 485                          --exclude CVS --exclude .pc --exclude .hg --exclude .git
 486
 487 # ===========================================================================
 488 # Rules shared between *config targets and build targets
 489
 490 # Basic helpers built in scripts/
 491 PHONY += scripts_basic
 492 scripts_basic:
 493         $(Q)$(MAKE) $(build)=scripts/basic
 494         $(Q)rm -f .tmp_quiet_recordmcount
 495
 496 # To avoid any implicit rule to kick in, define an empty command.
 497 scripts/basic/%: scripts_basic ;
 498
 499 PHONY += outputmakefile
 500 # outputmakefile generates a Makefile in the output directory, if using a
 501 # separate output directory. This allows convenient use of make in the
 502 # output directory.
 503 outputmakefile:
 504 ifneq ($(KBUILD_SRC),)
 505         $(Q)ln -fsn $(srctree) source
 506         $(Q)$(CONFIG_SHELL) $(srctree)/scripts/mkmakefile $(srctree)
 507 endif
 508
 509 # To make sure we do not include .config for any of the *config targets
 510 # catch them early, and hand them over to scripts/kconfig/Makefile
 511 # It is allowed to specify more targets when calling make, including
 512 # mixing *config targets and build targets.
 513 # For example 'make oldconfig all'.
 514 # Detect when mixed targets is specified, and make a second invocation
 515 # of make so .config is not included in this case either (for *config).
 516
 517 version_h := include/generated/version_autogenerated.h
 518 timestamp_h := include/generated/timestamp_autogenerated.h
 519 defaultenv_h := include/generated/defaultenv_autogenerated.h
 520 dt_h := include/generated/dt.h
 521 env_h := include/generated/environment.h
 522
 523 no-dot-config-targets := clean clobber mrproper distclean \
 524                          help %docs check% coccicheck \
 525                          ubootversion backup tests check pcheck qcheck tcheck \
 526                          pylint pylint_err _pip pip pip_test pip_release
 527
 528 config-targets := 0
 529 mixed-targets  := 0
 530 dot-config     := 1
 531
 532 ifneq ($(filter $(no-dot-config-targets), $(MAKECMDGOALS)),)
 533         ifeq ($(filter-out $(no-dot-config-targets), $(MAKECMDGOALS)),)
 534                 dot-config := 0
 535         endif
 536 endif
 537
 538 ifeq ($(KBUILD_EXTMOD),)
 539         ifneq ($(filter config %config,$(MAKECMDGOALS)),)
 540                 config-targets := 1
 541                 ifneq ($(words $(MAKECMDGOALS)),1)
 542                         mixed-targets := 1
 543                 endif
 544         endif
 545 endif
 546
 547 ifeq ($(mixed-targets),1)
 548 # ===========================================================================
 549 # We're called with mixed targets (*config and build targets).
 550 # Handle them one by one.
 551
 552 PHONY += $(MAKECMDGOALS) __build_one_by_one
 553
 554 $(filter-out __build_one_by_one, $(MAKECMDGOALS)): __build_one_by_one
 555         @:
 556
 557 __build_one_by_one:
 558         $(Q)set -e; \
 559         for i in $(MAKECMDGOALS); do \
 560                 $(MAKE) -f $(srctree)/Makefile $$i; \
 561         done
 562
 563 else
 564 ifeq ($(config-targets),1)
 565 # ===========================================================================
 566 # *config targets only - make sure prerequisites are updated, and descend
 567 # in scripts/kconfig to make the *config target
 568
 569 KBUILD_DEFCONFIG := sandbox_defconfig
 570 export KBUILD_DEFCONFIG KBUILD_KCONFIG
 571
 572 config: scripts_basic outputmakefile FORCE
 573         $(Q)$(MAKE) $(build)=scripts/kconfig $@
 574
 575 %config: scripts_basic outputmakefile FORCE
 576         $(Q)$(MAKE) $(build)=scripts/kconfig $@
 577
 578 else
 579 # ===========================================================================
 580 # Build targets only - this includes vmlinux, arch specific targets, clean
 581 # targets and others. In general all targets except *config targets.
 582
 583 # Additional helpers built in scripts/
 584 # Carefully list dependencies so we do not try to build scripts twice
 585 # in parallel
 586 PHONY += scripts
 587 scripts: scripts_basic scripts_dtc include/config/auto.conf
 588         $(Q)$(MAKE) $(build)=$(@)
 589
 590 ifeq ($(dot-config),1)
 591 # Read in config
 592 -include include/config/auto.conf
 593
 594 # Read in dependencies to all Kconfig* files, make sure to run
 595 # oldconfig if changes are detected.
 596 -include include/config/auto.conf.cmd
 597
 598 # To avoid any implicit rule to kick in, define an empty command
 599 $(KCONFIG_CONFIG) include/config/auto.conf.cmd: ;
 600
 601 # If .config is newer than include/config/auto.conf, someone tinkered
 602 # with it and forgot to run make oldconfig.
 603 # if auto.conf.cmd is missing then we are probably in a cleaned tree so
 604 # we execute the config step to be sure to catch updated Kconfig files
 605 include/config/%.conf: $(KCONFIG_CONFIG) include/config/auto.conf.cmd
 606         $(Q)$(MAKE) -f $(srctree)/Makefile syncconfig
 607         @# If the following part fails, include/config/auto.conf should be
 608         @# deleted so "make silentoldconfig" will be re-run on the next build.
 609         $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.autoconf || \
 610                 { rm -f include/config/auto.conf; false; }
 611         @# include/config.h has been updated after "make silentoldconfig".
 612         @# We need to touch include/config/auto.conf so it gets newer
 613         @# than include/config.h.
 614         @# Otherwise, 'make silentoldconfig' would be invoked twice.
 615         $(Q)touch include/config/auto.conf
 616
 617 u-boot.cfg spl/u-boot.cfg tpl/u-boot.cfg:
 618         $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.autoconf $(@)
 619
 620 -include include/autoconf.mk
 621 -include include/autoconf.mk.dep
 622
 623 # We want to include arch/$(ARCH)/config.mk only when include/config/auto.conf
 624 # is up-to-date. When we switch to a different board configuration, old CONFIG
 625 # macros are still remaining in include/config/auto.conf. Without the following
 626 # gimmick, wrong config.mk would be included leading nasty warnings/errors.
 627 ifneq ($(wildcard $(KCONFIG_CONFIG)),)
 628 ifneq ($(wildcard include/config/auto.conf),)
 629 autoconf_is_old := $(shell find . -path ./$(KCONFIG_CONFIG) -newer \
 630                                                 include/config/auto.conf)
 631 ifeq ($(autoconf_is_old),)
 632 include config.mk
 633 include arch/$(ARCH)/Makefile
 634 endif
 635 endif
 636 endif
 637
 638 # These are set by the arch-specific config.mk. Make sure they are exported
 639 # so they can be used when building an EFI application.
 640 export EFI_LDS          # Filename of EFI link script in arch/$(ARCH)/lib
 641 export EFI_CRT0         # Filename of EFI CRT0 in arch/$(ARCH)/lib
 642 export EFI_RELOC        # Filename of EFU relocation code in arch/$(ARCH)/lib
 643 export CFLAGS_EFI       # Compiler flags to add when building EFI app
 644 export CFLAGS_NON_EFI   # Compiler flags to remove when building EFI app
 645 export EFI_TARGET       # binutils target if EFI is natively supported
 646
 647 export LTO_ENABLE
 648
 649 # This is y if LTO is enabled for this build. See NO_LTO=1 to disable LTO
 650 ifeq ($(NO_LTO),)
 651 LTO_ENABLE=$(if $(CONFIG_LTO),y)
 652 endif
 653
 654 # If board code explicitly specified LDSCRIPT or CONFIG_SYS_LDSCRIPT, use
 655 # that (or fail if absent).  Otherwise, search for a linker script in a
 656 # standard location.
 657
 658 ifndef LDSCRIPT
 659         #LDSCRIPT := $(srctree)/board/$(BOARDDIR)/u-boot.lds.debug
 660         ifdef CONFIG_SYS_LDSCRIPT
 661                 # need to strip off double quotes
 662                 LDSCRIPT := $(srctree)/$(CONFIG_SYS_LDSCRIPT:"%"=%)
 663         endif
 664 endif
 665
 666 # If there is no specified link script, we look in a number of places for it
 667 ifndef LDSCRIPT
 668         ifeq ($(wildcard $(LDSCRIPT)),)
 669                 LDSCRIPT := $(srctree)/board/$(BOARDDIR)/u-boot.lds
 670         endif
 671         ifeq ($(wildcard $(LDSCRIPT)),)
 672                 LDSCRIPT := $(srctree)/$(CPUDIR)/u-boot.lds
 673         endif
 674         ifeq ($(wildcard $(LDSCRIPT)),)
 675                 LDSCRIPT := $(srctree)/arch/$(ARCH)/cpu/u-boot.lds
 676         endif
 677 endif
 678
 679 else
 680 # Dummy target needed, because used as prerequisite
 681 include/config/auto.conf: ;
 682 endif # $(dot-config)
 683
 684 ifdef CONFIG_CC_OPTIMIZE_FOR_DEBUG
 685 KBUILD_HOSTCFLAGS   := -Wall -Wstrict-prototypes -Og -g -fomit-frame-pointer \
 686                 $(HOST_LFS_CFLAGS) $(HOSTCFLAGS)
 687 # Avoid false positives -Wmaybe-uninitialized
 688 # https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78394
 689 KBUILD_HOSTCFLAGS   += -Wno-maybe-uninitialized
 690 KBUILD_HOSTCXXFLAGS := -Og -g $(HOST_LFS_CFLAGS) $(HOSTCXXFLAGS)
 691 endif
 692
 693 #
 694 # Xtensa linker script cannot be preprocessed with -ansi because of
 695 # preprocessor operations on strings that don't make C identifiers.
 696 #
 697 ifeq ($(CONFIG_XTENSA),)
 698 LDPPFLAGS       += -ansi
 699 endif
 700
 701 ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE
 702 KBUILD_CFLAGS   += -Os
 703 endif
 704
 705 ifdef CONFIG_CC_OPTIMIZE_FOR_SPEED
 706 KBUILD_CFLAGS   += -O2
 707 endif
 708
 709 ifdef CONFIG_CC_OPTIMIZE_FOR_DEBUG
 710 KBUILD_CFLAGS   += -Og -Wno-maybe-uninitialized
 711 # Avoid false positives -Wmaybe-uninitialized
 712 # https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78394
 713 KBUILD_CFLAGS   += -Wno-maybe-uninitialized
 714 endif
 715
 716 LTO_CFLAGS :=
 717 LTO_FINAL_LDFLAGS :=
 718 export LTO_CFLAGS LTO_FINAL_LDFLAGS
 719 ifeq ($(LTO_ENABLE),y)
 720         ifeq ($(cc-name),clang)
 721                 LTO_CFLAGS              += -DLTO_ENABLE -flto
 722                 LTO_FINAL_LDFLAGS       += -flto
 723
 724                 AR                      = $(shell $(CC) -print-prog-name=llvm-ar)
 725                 NM                      = $(shell $(CC) -print-prog-name=llvm-nm)
 726         else
 727                 NPROC                   := $(shell nproc 2>/dev/null || echo 1)
 728                 LTO_CFLAGS              += -DLTO_ENABLE -flto=$(NPROC)
 729                 LTO_FINAL_LDFLAGS       += -fuse-linker-plugin -flto=$(NPROC)
 730
 731                 # use plugin aware tools
 732                 AR                      = $(CROSS_COMPILE)gcc-ar
 733                 NM                      = $(CROSS_COMPILE)gcc-nm
 734         endif
 735
 736         CFLAGS_NON_EFI                  += $(LTO_CFLAGS)
 737
 738         KBUILD_CFLAGS                   += $(LTO_CFLAGS)
 739 endif
 740
 741 ifeq ($(CONFIG_STACKPROTECTOR),y)
 742 KBUILD_CFLAGS += $(call cc-option,-fstack-protector-strong)
 743 CFLAGS_EFI += $(call cc-option,-fno-stack-protector)
 744 else
 745 KBUILD_CFLAGS += $(call cc-option,-fno-stack-protector)
 746 endif
 747 KBUILD_CFLAGS += $(call cc-option,-fno-delete-null-pointer-checks)
 748
 749 # disable pointer signed / unsigned warnings in gcc 4.0
 750 KBUILD_CFLAGS += -Wno-pointer-sign
 751
 752 # disable stringop warnings in gcc 8+
 753 KBUILD_CFLAGS += $(call cc-disable-warning, stringop-truncation)
 754
 755 KBUILD_CFLAGS += $(call cc-disable-warning, zero-length-bounds)
 756 KBUILD_CFLAGS += $(call cc-disable-warning, array-bounds)
 757 KBUILD_CFLAGS += $(call cc-disable-warning, stringop-overflow)
 758
 759 # Enabled with W=2, disabled by default as noisy
 760 KBUILD_CFLAGS += $(call cc-disable-warning, maybe-uninitialized)
 761
 762 # change __FILE__ to the relative path from the srctree
 763 KBUILD_CFLAGS   += $(call cc-option,-fmacro-prefix-map=$(srctree)/=)
 764
 765 KBUILD_CFLAGS   += -gdwarf-4
 766 # $(KBUILD_AFLAGS) sets -g, which causes gcc to pass a suitable -g<format>
 767 # option to the assembler.
 768 KBUILD_AFLAGS   += -gdwarf-4
 769
 770 # Report stack usage if supported
 771 # ARC tools based on GCC 7.1 has an issue with stack usage
 772 # with naked functions, see commit message for more details
 773 ifndef CONFIG_ARC
 774 ifeq ($(shell $(CONFIG_SHELL) $(srctree)/scripts/gcc-stack-usage.sh $(CC)),y)
 775         KBUILD_CFLAGS += -fstack-usage
 776 endif
 777 endif
 778
 779 KBUILD_CFLAGS += $(call cc-option,-Wno-format-nonliteral)
 780 KBUILD_CFLAGS += $(call cc-disable-warning, address-of-packed-member)
 781
 782 ifdef CONFIG_CC_IS_CLANG
 783 KBUILD_CPPFLAGS += $(call cc-option,-Qunused-arguments,)
 784 KBUILD_CFLAGS += $(call cc-disable-warning, format-invalid-specifier)
 785 KBUILD_CFLAGS += $(call cc-disable-warning, gnu)
 786 KBUILD_CFLAGS += $(call cc-disable-warning, address-of-packed-member)
 787 # Quiet clang warning: comparison of unsigned expression < 0 is always false
 788 KBUILD_CFLAGS += $(call cc-disable-warning, tautological-compare)
 789 # CLANG uses a _MergedGlobals as optimization, but this breaks modpost, as the
 790 # source of a reference will be _MergedGlobals and not on of the whitelisted names.
 791 # See modpost pattern 2
 792 KBUILD_CFLAGS += $(call cc-option, -mno-global-merge,)
 793 KBUILD_CFLAGS += $(call cc-option, -fcatch-undefined-behavior)
 794 KBUILD_CFLAGS += $(call cc-disable-warning, deprecated-non-prototype)
 795 endif
 796
 797 # These warnings generated too much noise in a regular build.
 798 # Use make W=1 to enable them (see scripts/Makefile.extrawarn)
 799 KBUILD_CFLAGS += $(call cc-disable-warning, unused-but-set-variable)
 800
 801 # Prohibit date/time macros, which would make the build non-deterministic
 802 KBUILD_CFLAGS   += $(call cc-option,-Werror=date-time)
 803
 804 include scripts/Makefile.extrawarn
 805
 806 # Add user supplied CPPFLAGS, AFLAGS and CFLAGS as the last assignments
 807 KBUILD_CPPFLAGS += $(KCPPFLAGS)
 808 KBUILD_AFLAGS += $(KAFLAGS)
 809 KBUILD_CFLAGS += $(KCFLAGS)
 810
 811 KBUILD_LDFLAGS  += -z noexecstack
 812 KBUILD_LDFLAGS  += $(call ld-option,--no-warn-rwx-segments)
 813
 814 KBUILD_HOSTCFLAGS += $(if $(CONFIG_TOOLS_DEBUG),-g)
 815
 816 # Use UBOOTINCLUDE when you must reference the include/ directory.
 817 # Needed to be compatible with the O= option
 818 UBOOTINCLUDE    := \
 819         -Iinclude \
 820         $(if $(KBUILD_SRC), -I$(srctree)/include) \
 821         $(if $(CONFIG_$(SPL_)SYS_THUMB_BUILD), \
 822                 $(if $(CONFIG_HAS_THUMB2), \
 823                         $(if $(CONFIG_CPU_V7M), \
 824                                 -I$(srctree)/arch/arm/thumb1/include), \
 825                         -I$(srctree)/arch/arm/thumb1/include)) \
 826         -I$(srctree)/arch/$(ARCH)/include \
 827         -include $(srctree)/include/linux/kconfig.h
 828
 829 NOSTDINC_FLAGS += -nostdinc -isystem $(shell $(CC) -print-file-name=include)
 830
 831 # FIX ME
 832 cpp_flags := $(KBUILD_CPPFLAGS) $(PLATFORM_CPPFLAGS) $(UBOOTINCLUDE) \
 833                                                         $(NOSTDINC_FLAGS)
 834 c_flags := $(KBUILD_CFLAGS) $(cpp_flags)
 835
 836 #########################################################################
 837 # U-Boot objects....order is important (i.e. start must be first)
 838
 839 HAVE_VENDOR_COMMON_LIB = $(if $(wildcard $(srctree)/board/$(VENDOR)/common/Makefile),y,n)
 840
 841 libs-$(CONFIG_API) += api/
 842 libs-$(HAVE_VENDOR_COMMON_LIB) += board/$(VENDOR)/common/
 843 libs-y += boot/
 844 libs-y += cmd/
 845 libs-y += common/
 846 libs-$(CONFIG_OF_EMBED) += dts/
 847 libs-y += env/
 848 libs-y += lib/
 849 libs-y += fs/
 850 libs-y += net/
 851 libs-y += disk/
 852 libs-y += drivers/
 853 libs-$(CONFIG_SYS_FSL_DDR) += drivers/ddr/fsl/
 854 libs-$(CONFIG_SYS_FSL_MMDC) += drivers/ddr/fsl/
 855 libs-$(CONFIG_$(SPL_)ALTERA_SDRAM) += drivers/ddr/altera/
 856 libs-y += drivers/usb/cdns3/
 857 libs-y += drivers/usb/dwc3/
 858 libs-y += drivers/usb/common/
 859 libs-y += drivers/usb/emul/
 860 libs-y += drivers/usb/eth/
 861 libs-$(CONFIG_USB_DEVICE) += drivers/usb/gadget/
 862 libs-$(CONFIG_USB_GADGET) += drivers/usb/gadget/
 863 libs-$(CONFIG_USB_GADGET) += drivers/usb/gadget/udc/
 864 libs-y += drivers/usb/host/
 865 libs-y += drivers/usb/mtu3/
 866 libs-y += drivers/usb/musb/
 867 libs-y += drivers/usb/musb-new/
 868 libs-y += drivers/usb/isp1760/
 869 libs-y += drivers/usb/phy/
 870 libs-y += drivers/usb/ulpi/
 871 ifdef CONFIG_POST
 872 libs-y += post/
 873 endif
 874 libs-$(CONFIG_$(SPL_TPL_)UNIT_TEST) += test/
 875 libs-$(CONFIG_UT_ENV) += test/env/
 876 libs-$(CONFIG_UT_OPTEE) += test/optee/
 877 libs-$(CONFIG_UT_OVERLAY) += test/overlay/
 878
 879 libs-y += $(if $(BOARDDIR),board/$(BOARDDIR)/)
 880
 881 libs-y := $(sort $(libs-y))
 882
 883 u-boot-dirs     := $(patsubst %/,%,$(filter %/, $(libs-y))) tools examples
 884
 885 u-boot-alldirs  := $(sort $(u-boot-dirs) $(patsubst %/,%,$(filter %/, $(libs-))))
 886
 887 libs-y          := $(patsubst %/, %/built-in.o, $(libs-y))
 888
 889 u-boot-init := $(head-y)
 890 u-boot-main := $(libs-y)
 891
 892
 893 # Add GCC lib
 894 ifeq ($(CONFIG_USE_PRIVATE_LIBGCC),y)
 895 PLATFORM_LIBGCC = arch/$(ARCH)/lib/lib.a
 896 else
 897 ifndef CONFIG_CC_IS_CLANG
 898 PLATFORM_LIBGCC := -L $(shell dirname `$(CC) $(c_flags) -print-libgcc-file-name`) -lgcc
 899 endif
 900 endif
 901 PLATFORM_LIBS += $(PLATFORM_LIBGCC)
 902
 903 ifdef CONFIG_CC_COVERAGE
 904 KBUILD_CFLAGS += --coverage
 905 PLATFORM_LIBGCC += -lgcov
 906 endif
 907
 908 export PLATFORM_LIBS
 909 export PLATFORM_LIBGCC
 910
 911 # Special flags for CPP when processing the linker script.
 912 # Pass the version down so we can handle backwards compatibility
 913 # on the fly.
 914 LDPPFLAGS += \
 915         -include $(srctree)/include/u-boot/u-boot.lds.h \
 916         -DCPUDIR=$(CPUDIR) \
 917         $(shell $(LD) --version | \
 918           sed -ne 's/GNU ld version \([0-9][0-9]*\)\.\([0-9][0-9]*\).*/-DLD_MAJOR=\1 -DLD_MINOR=\2/p')
 919
 920 #########################################################################
 921 #########################################################################
 922
 923 ifneq ($(CONFIG_BOARD_SIZE_LIMIT),)
 924 BOARD_SIZE_CHECK= @ $(call size_check,$@,$(CONFIG_BOARD_SIZE_LIMIT))
 925 else
 926 BOARD_SIZE_CHECK =
 927 endif
 928
 929 ifneq ($(CONFIG_SPL_SIZE_LIMIT),0x0)
 930 SPL_SIZE_CHECK = @$(call size_check,$@,$$(tools/spl_size_limit))
 931 else
 932 SPL_SIZE_CHECK =
 933 endif
 934
 935 ifneq ($(CONFIG_TPL_SIZE_LIMIT),0x0)
 936 TPL_SIZE_CHECK = @$(call size_check,$@,$(CONFIG_TPL_SIZE_LIMIT))
 937 else
 938 TPL_SIZE_CHECK =
 939 endif
 940
 941 ifneq ($(CONFIG_VPL_SIZE_LIMIT),0x0)
 942 VPL_SIZE_CHECK = @$(call size_check,$@,$(CONFIG_VPL_SIZE_LIMIT))
 943 else
 944 VPL_SIZE_CHECK =
 945 endif
 946
 947 # Statically apply RELA-style relocations (currently arm64 only)
 948 # This is useful for arm64 where static relocation needs to be performed on
 949 # the raw binary, but certain simulators only accept an ELF file (but don't
 950 # do the relocation).
 951 ifneq ($(CONFIG_STATIC_RELA),)
 952 # $(2) is u-boot ELF, $(3) is u-boot bin, $(4) is text base
 953 quiet_cmd_static_rela = RELOC   $@
 954 cmd_static_rela = \
 955         tools/relocate-rela $(3) $(2)
 956 else
 957 quiet_cmd_static_rela =
 958 cmd_static_rela =
 959 endif
 960
 961 # Always append INPUTS so that arch config.mk's can add custom ones
 962 INPUTS-y += u-boot.srec u-boot.bin u-boot.sym System.map binary_size_check
 963
 964 ifeq ($(CONFIG_SPL_FSL_PBL),y)
 965 INPUTS-$(CONFIG_RAMBOOT_PBL) += u-boot-with-spl-pbl.bin
 966 else
 967 ifneq ($(CONFIG_NXP_ESBC), y)
 968 # For Secure Boot The Image needs to be signed and Header must also
 969 # be included. So The image has to be built explicitly
 970 INPUTS-$(CONFIG_RAMBOOT_PBL) += u-boot.pbl
 971 endif
 972 endif
 973 INPUTS-$(CONFIG_SPL) += spl/u-boot-spl.bin
 974 ifeq ($(CONFIG_MX6)$(CONFIG_IMX_HAB), yy)
 975 INPUTS-$(CONFIG_SPL_FRAMEWORK) += u-boot-ivt.img
 976 else
 977 ifeq ($(CONFIG_MX7)$(CONFIG_IMX_HAB), yy)
 978 INPUTS-$(CONFIG_SPL_FRAMEWORK) += u-boot-ivt.img
 979 else
 980 INPUTS-$(CONFIG_SPL_FRAMEWORK) += u-boot.img
 981 endif
 982 endif
 983 INPUTS-$(CONFIG_TPL) += tpl/u-boot-tpl.bin
 984 INPUTS-$(CONFIG_VPL) += vpl/u-boot-vpl.bin
 985
 986 # Allow omitting the .dtb output if it is not normally used
 987 INPUTS-$(CONFIG_OF_SEPARATE) += $(if $(CONFIG_OF_OMIT_DTB),dts/dt.dtb,u-boot.dtb)
 988 ifeq ($(CONFIG_SPL_FRAMEWORK),y)
 989 INPUTS-$(CONFIG_OF_SEPARATE) += u-boot-dtb.img
 990 endif
 991 INPUTS-$(CONFIG_SANDBOX) += u-boot.dtb
 992 ifneq ($(CONFIG_SPL_TARGET),)
 993 INPUTS-$(CONFIG_SPL) += $(CONFIG_SPL_TARGET:"%"=%)
 994 endif
 995 INPUTS-$(CONFIG_REMAKE_ELF) += u-boot.elf
 996 INPUTS-$(CONFIG_EFI_APP) += u-boot-app.efi
 997 INPUTS-$(CONFIG_EFI_STUB) += u-boot-payload.efi
 998
 999 # Generate this input file for binman
1000 ifeq ($(CONFIG_SPL),)
1001 INPUTS-$(CONFIG_ARCH_MEDIATEK) += u-boot-mtk.bin
1002 endif
1003
1004 # Add optional build target if defined in board/cpu/soc headers
1005 ifneq ($(CONFIG_BUILD_TARGET),)
1006 INPUTS-y += $(CONFIG_BUILD_TARGET:"%"=%)
1007 endif
1008
1009 ifeq ($(CONFIG_INIT_SP_RELATIVE)$(CONFIG_OF_SEPARATE),yy)
1010 INPUTS-y += init_sp_bss_offset_check
1011 endif
1012
1013 ifeq ($(CONFIG_ARCH_ROCKCHIP)_$(CONFIG_SPL_FRAMEWORK),y_)
1014 INPUTS-y += u-boot.img
1015 endif
1016
1017 INPUTS-$(CONFIG_X86) += u-boot-x86-start16.bin u-boot-x86-reset16.bin \
1018         $(if $(CONFIG_SPL_X86_16BIT_INIT),spl/u-boot-spl.bin) \
1019         $(if $(CONFIG_TPL_X86_16BIT_INIT),tpl/u-boot-tpl.bin)
1020
1021 LDFLAGS_u-boot += $(LDFLAGS_FINAL)
1022
1023 # Avoid 'Not enough room for program headers' error on binutils 2.28 onwards.
1024 LDFLAGS_u-boot += $(call ld-option, --no-dynamic-linker)
1025
1026 # ld.lld support
1027 LDFLAGS_u-boot += -z notext $(call ld-option,--apply-dynamic-relocs)
1028
1029 LDFLAGS_u-boot += --build-id=none
1030
1031 ifeq ($(CONFIG_ARC)$(CONFIG_NIOS2)$(CONFIG_X86)$(CONFIG_XTENSA),)
1032 LDFLAGS_u-boot += -Ttext $(CONFIG_TEXT_BASE)
1033 endif
1034
1035 # insure the checker run with the right endianness
1036 CHECKFLAGS += $(if $(CONFIG_CPU_BIG_ENDIAN),-mbig-endian,-mlittle-endian)
1037
1038 # the checker needs the correct machine size
1039 CHECKFLAGS += $(if $(CONFIG_64BIT),-m64,-m32)
1040
1041 # Normally we fill empty space with 0xff
1042 quiet_cmd_objcopy = OBJCOPY $@
1043 cmd_objcopy = $(OBJCOPY) --gap-fill=0xff $(OBJCOPYFLAGS) \
1044         $(OBJCOPYFLAGS_$(@F)) $< $@
1045
1046 # Provide a version which does not do this, for use by EFI
1047 quiet_cmd_zobjcopy = OBJCOPY $@
1048 cmd_zobjcopy = $(OBJCOPY) $(OBJCOPYFLAGS) $(OBJCOPYFLAGS_$(@F)) $< $@
1049
1050 quiet_cmd_efipayload = OBJCOPY $@
1051 cmd_efipayload = $(OBJCOPY) -I binary -O $(EFIPAYLOAD_BFDTARGET) -B $(EFIPAYLOAD_BFDARCH) $< $@
1052
1053 MKIMAGEOUTPUT ?= /dev/null
1054
1055 quiet_cmd_mkimage = MKIMAGE $@
1056 cmd_mkimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -d $< $@ \
1057         >$(MKIMAGEOUTPUT) $(if $(KBUILD_VERBOSE:0=), && cat $(MKIMAGEOUTPUT))
1058
1059 quiet_cmd_mkfitimage = MKIMAGE $@
1060 cmd_mkfitimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) \
1061         -f $(U_BOOT_ITS) -p $(CONFIG_FIT_EXTERNAL_OFFSET) $@ \
1062         >$(MKIMAGEOUTPUT) $(if $(KBUILD_VERBOSE:0=), && cat $(MKIMAGEOUTPUT))
1063
1064 quiet_cmd_cat = CAT     $@
1065 cmd_cat = cat $(filter-out $(PHONY), $^) > $@
1066
1067 append = cat $(filter-out $< $(PHONY), $^) >> $@
1068
1069 quiet_cmd_pad_cat = CAT     $@
1070 cmd_pad_cat = $(cmd_objcopy) && $(append) || { rm -f $@; false; }
1071
1072 quiet_cmd_lzma = LZMA    $@
1073 cmd_lzma = lzma -c -z -k -9 $< > $@
1074
1075 cfg: u-boot.cfg
1076
1077 quiet_cmd_ofcheck = OFCHK   $2
1078 cmd_ofcheck = $(srctree)/scripts/check-of.sh $2 \
1079                 $(srctree)/scripts/of_allowlist.txt
1080
1081 # Concat the value of all the CONFIGs (result is 'y' or 'yy', etc. )
1082 got = $(foreach cfg,$(1),$($(cfg)))
1083
1084 # expected value 'y for each one
1085 expect = $(foreach cfg,$(1),y)
1086
1087 # Show a deprecation message
1088 # Args:
1089 # 1: List of options to migrate to (e.g. "CONFIG_DM_MMC CONFIG_BLK")
1090 # 2: Name of component (e.g . "Ethernet drivers")
1091 # 3: Release deadline (e.g. "v202.07")
1092 # 4: Condition to require before checking (e.g. "$(CONFIG_NET)")
1093 # Note: Script avoids bash construct, hence the strange double 'if'
1094 # (patches welcome!)
1095 define deprecated
1096         @if [ -n "$(strip $(4))" ]; then if [ "$(got)" != "$(expect)" ]; then \
1097                 echo >&2 "===================== WARNING ======================"; \
1098                 echo >&2 "This board does not use $(firstword $(1)) (Driver Model"; \
1099                 echo >&2 "for $(2)). Please update the board to use"; \
1100                 echo >&2 "$(firstword $(1)) before the $(3) release. Failure to"; \
1101                 echo >&2 "update by the deadline may result in board removal."; \
1102                 echo >&2 "See doc/develop/driver-model/migration.rst for more info."; \
1103                 echo >&2 "===================================================="; \
1104         fi; fi
1105
1106 endef
1107
1108 # Timestamp file to make sure that binman always runs
1109 .binman_stamp: $(INPUTS-y) FORCE
1110 ifeq ($(CONFIG_BINMAN),y)
1111         $(call if_changed,binman)
1112 endif
1113         @touch $@
1114
1115 all: .binman_stamp
1116
1117 ifeq ($(CONFIG_DEPRECATED),y)
1118         $(warning "You have deprecated configuration options enabled in your .config! Please check your configuration.")
1119 endif
1120 ifeq ($(CONFIG_OF_EMBED)$(CONFIG_EFI_APP),y)
1121         @echo >&2 "===================== WARNING ======================"
1122         @echo >&2 "CONFIG_OF_EMBED is enabled. This option should only"
1123         @echo >&2 "be used for debugging purposes. Please use"
1124         @echo >&2 "CONFIG_OF_SEPARATE for boards in mainline."
1125         @echo >&2 "See doc/develop/devicetree/control.rst for more info."
1126         @echo >&2 "===================================================="
1127 endif
1128 ifneq ($(CONFIG_SPL_FIT_GENERATOR),)
1129         @echo >&2 "===================== WARNING ======================"
1130         @echo >&2 "This board uses CONFIG_SPL_FIT_GENERATOR. Please migrate"
1131         @echo >&2 "to binman instead, to avoid the proliferation of"
1132         @echo >&2 "arch-specific scripts with no tests."
1133         @echo >&2 "===================================================="
1134 endif
1135         $(call deprecated,CONFIG_WDT,DM watchdog,v2019.10,\
1136                 $(CONFIG_WATCHDOG)$(CONFIG_HW_WATCHDOG))
1137         $(call deprecated,CONFIG_DM_I2C,I2C drivers,v2022.04,$(CONFIG_SYS_I2C_LEGACY))
1138         @# CFG_SYS_TIMER_RATE has brackets in it for some boards which
1139         @# confuses this rule. Use if() to send just a single character which
1140         @# is enable to tell 'deprecated' that one of these symbols exists
1141         $(call deprecated,CONFIG_TIMER,Timer drivers,v2023.01,$(if $(strip $(CFG_SYS_TIMER_RATE)$(CFG_SYS_TIMER_COUNTER)),x))
1142         $(call deprecated,CONFIG_DM_SERIAL,Serial drivers,v2023.04,$(CONFIG_SERIAL))
1143         $(call deprecated,CONFIG_DM_SCSI,SCSI drivers,v2023.04,$(CONFIG_SCSI))
1144         @# Check that this build does not override OF_HAS_PRIOR_STAGE by
1145         @# disabling OF_BOARD.
1146         $(call cmd,ofcheck,$(KCONFIG_CONFIG))
1147
1148 PHONY += dtbs
1149 dtbs: dts/dt.dtb
1150         @:
1151 dts/dt.dtb: u-boot
1152         $(Q)$(MAKE) $(build)=dts dtbs
1153
1154 quiet_cmd_copy = COPY    $@
1155       cmd_copy = cp $< $@
1156
1157 ifeq ($(CONFIG_MULTI_DTB_FIT),y)
1158
1159 ifeq ($(CONFIG_MULTI_DTB_FIT_LZO),y)
1160 FINAL_DTB_CONTAINER = fit-dtb.blob.lzo
1161 else ifeq ($(CONFIG_MULTI_DTB_FIT_GZIP),y)
1162 FINAL_DTB_CONTAINER = fit-dtb.blob.gz
1163 else
1164 FINAL_DTB_CONTAINER = fit-dtb.blob
1165 endif
1166
1167 fit-dtb.blob.gz: fit-dtb.blob
1168         @gzip -kf9 $< > $@
1169
1170 fit-dtb.blob.lzo: fit-dtb.blob
1171         @lzop -f9 $< > $@
1172
1173 fit-dtb.blob: dts/dt.dtb FORCE
1174         $(call if_changed,mkimage)
1175 ifneq ($(SOURCE_DATE_EPOCH),)
1176         touch -d @$(SOURCE_DATE_EPOCH) fit-dtb.blob
1177         chmod 0600 fit-dtb.blob
1178 endif
1179
1180 MKIMAGEFLAGS_fit-dtb.blob = -f auto -A $(ARCH) -T firmware -C none -O u-boot \
1181         -a 0 -e 0 -E \
1182         $(patsubst %,-b arch/$(ARCH)/dts/%.dtb,$(subst ",,$(CONFIG_OF_LIST))) -d /dev/null
1183
1184 MKIMAGEFLAGS_fit-dtb.blob += -B 0x8
1185
1186 ifneq ($(EXT_DTB),)
1187 u-boot-fit-dtb.bin: u-boot-nodtb.bin $(EXT_DTB)
1188                 $(call if_changed,cat)
1189 else
1190 u-boot-fit-dtb.bin: u-boot-nodtb.bin $(FINAL_DTB_CONTAINER)
1191         $(call if_changed,cat)
1192 endif
1193
1194 u-boot.bin: u-boot-fit-dtb.bin FORCE
1195         $(call if_changed,copy)
1196
1197 ifneq ($(CONFIG_MPC85XX_HAVE_RESET_VECTOR)$(CONFIG_OF_SEPARATE),yy)
1198 u-boot-dtb.bin: u-boot-nodtb.bin dts/dt.dtb FORCE
1199         $(call if_changed,cat)
1200 endif
1201
1202 else ifeq ($(CONFIG_OF_SEPARATE).$(CONFIG_OF_OMIT_DTB),y.)
1203
1204 ifneq ($(CONFIG_MPC85XX_HAVE_RESET_VECTOR)$(CONFIG_OF_SEPARATE),yy)
1205 u-boot-dtb.bin: u-boot-nodtb.bin dts/dt.dtb FORCE
1206         $(call if_changed,cat)
1207 endif
1208
1209 u-boot.bin: u-boot-dtb.bin FORCE
1210         $(call if_changed,copy)
1211
1212 else
1213 u-boot.bin: u-boot-nodtb.bin FORCE
1214         $(call if_changed,copy)
1215 endif
1216
1217 # we call Makefile in arch/arm/mach-imx which
1218 # has targets which are dependent on targets defined
1219 # here. make could not resolve them and we must ensure
1220 # that they are finished before calling imx targets
1221 ifeq ($(CONFIG_MULTI_DTB_FIT),y)
1222 IMX_DEPS = u-boot-fit-dtb.bin
1223 endif
1224
1225 %.imx: $(IMX_DEPS) %.bin
1226         $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@
1227         $(BOARD_SIZE_CHECK)
1228
1229 %.vyb: %.imx
1230         $(Q)$(MAKE) $(build)=arch/arm/cpu/armv7/vf610 $@
1231
1232 quiet_cmd_copy = COPY    $@
1233       cmd_copy = cp $< $@
1234
1235 u-boot.dtb: dts/dt.dtb
1236         $(call cmd,copy)
1237
1238 OBJCOPYFLAGS_u-boot.hex := -O ihex
1239
1240 OBJCOPYFLAGS_u-boot.srec := -O srec
1241
1242 u-boot.hex u-boot.srec: u-boot FORCE
1243         $(call if_changed,objcopy)
1244
1245 OBJCOPYFLAGS_u-boot-elf.srec := $(OBJCOPYFLAGS_u-boot.srec)
1246
1247 u-boot-elf.srec: u-boot.elf FORCE
1248         $(call if_changed,objcopy)
1249
1250 OBJCOPYFLAGS_u-boot-spl.srec = $(OBJCOPYFLAGS_u-boot.srec)
1251
1252 spl/u-boot-spl.srec: spl/u-boot-spl FORCE
1253         $(call if_changed,objcopy)
1254
1255 %.scif: %.srec
1256         $(Q)$(MAKE) $(build)=arch/arm/mach-rmobile $@
1257
1258 OBJCOPYFLAGS_u-boot-nodtb.bin := -O binary \
1259                 $(if $(CONFIG_X86_16BIT_INIT),-R .start16 -R .resetvec) \
1260                 $(if $(CONFIG_MPC85XX_HAVE_RESET_VECTOR),$(if $(CONFIG_OF_SEPARATE),-R .bootpg -R .resetvec))
1261
1262 binary_size_check: u-boot-nodtb.bin FORCE
1263         @file_size=$(shell wc -c u-boot-nodtb.bin | awk '{print $$1}') ; \
1264         map_size=$(shell cat u-boot.map | \
1265                 awk '/_image_copy_start/ {start = $$1} /_image_binary_end/ {end = $$1} END {if (start != "" && end != "") print "ibase=16; " toupper(end) " - " toupper(start)}' \
1266                 | sed 's/0X//g' \
1267                 | bc); \
1268         if [ "" != "$$map_size" ]; then \
1269                 if test $$map_size -ne $$file_size; then \
1270                         echo "u-boot.map shows a binary size of $$map_size" >&2 ; \
1271                         echo "  but u-boot-nodtb.bin shows $$file_size" >&2 ; \
1272                         exit 1; \
1273                 fi; \
1274         fi
1275
1276 ifeq ($(CONFIG_INIT_SP_RELATIVE)$(CONFIG_OF_SEPARATE),yy)
1277 ifneq ($(CONFIG_SYS_MALLOC_F_LEN),)
1278 subtract_sys_malloc_f_len = space=$$(($${space} - $(CONFIG_SYS_MALLOC_F_LEN)))
1279 else
1280 subtract_sys_malloc_f_len = true
1281 endif
1282 # The 1/4 margin below is somewhat arbitrary. The likely initial SP usage is
1283 # so low that the DTB could probably use 90%+ of the available space, for
1284 # current values of CONFIG_SYS_INIT_SP_BSS_OFFSET at least. However, let's be
1285 # safe for now and tweak this later if space becomes tight.
1286 # A rejected alternative would be to check that some absolute minimum stack
1287 # space was available. However, since CONFIG_SYS_INIT_SP_BSS_OFFSET is
1288 # deliberately build-specific, to take account of build-to-build stack usage
1289 # differences due to different feature sets, there is no common absolute value
1290 # to check against.
1291 init_sp_bss_offset_check: u-boot.dtb FORCE
1292         @dtb_size=$(shell wc -c u-boot.dtb | awk '{print $$1}') ; \
1293         space=$(CONFIG_SYS_INIT_SP_BSS_OFFSET) ; \
1294         $(subtract_sys_malloc_f_len) ; \
1295         quarter_space=$$(($${space} / 4)) ; \
1296         if [ $${dtb_size} -gt $${quarter_space} ]; then \
1297                 echo "u-boot.dtb is larger than 1 quarter of " >&2 ; \
1298                 echo "(CONFIG_SYS_INIT_SP_BSS_OFFSET - CONFIG_SYS_MALLOC_F_LEN)" >&2 ; \
1299                 exit 1 ; \
1300         fi
1301 endif
1302
1303 shell_cmd = { $(call echo-cmd,$(1)) $(cmd_$(1)); }
1304
1305 quiet_cmd_objcopy_uboot = OBJCOPY $@
1306 ifdef cmd_static_rela
1307 cmd_objcopy_uboot = $(cmd_objcopy) && $(call shell_cmd,static_rela,$<,$@,$(CONFIG_TEXT_BASE)) || { rm -f $@; false; }
1308 else
1309 cmd_objcopy_uboot = $(cmd_objcopy)
1310 endif
1311
1312 u-boot-nodtb.bin: u-boot FORCE
1313         $(call if_changed,objcopy_uboot)
1314         $(BOARD_SIZE_CHECK)
1315
1316 u-boot.ldr:     u-boot
1317                 $(CREATE_LDR_ENV)
1318                 $(LDR) -T $(CONFIG_CPU) -c $@ $< $(LDR_FLAGS)
1319                 $(BOARD_SIZE_CHECK)
1320
1321 # binman
1322 # ---------------------------------------------------------------------------
1323 # Use 'make BINMAN_DEBUG=1' to enable debugging
1324 # Use 'make BINMAN_VERBOSE=3' to set vebosity level
1325 default_dt := $(if $(DEVICE_TREE),$(DEVICE_TREE),$(CONFIG_DEFAULT_DEVICE_TREE))
1326
1327 quiet_cmd_binman = BINMAN  $@
1328 cmd_binman = $(srctree)/tools/binman/binman $(if $(BINMAN_DEBUG),-D) \
1329                 $(foreach f,$(BINMAN_TOOLPATHS),--toolpath $(f)) \
1330                 --toolpath $(objtree)/tools \
1331                 $(if $(BINMAN_VERBOSE),-v$(BINMAN_VERBOSE)) \
1332                 build -u -d u-boot.dtb -O . -m \
1333                 $(if $(BINMAN_ALLOW_MISSING),--allow-missing --ignore-missing) \
1334                 -I . -I $(srctree) -I $(srctree)/board/$(BOARDDIR) \
1335                 -I arch/$(ARCH)/dts -a of-list=$(CONFIG_OF_LIST) \
1336                 $(foreach f,$(BINMAN_INDIRS),-I $(f)) \
1337                 -a atf-bl31-path=${BL31} \
1338                 -a tee-os-path=${TEE} \
1339                 -a opensbi-path=${OPENSBI} \
1340                 -a default-dt=$(default_dt) \
1341                 -a scp-path=$(SCP) \
1342                 -a rockchip-tpl-path=$(ROCKCHIP_TPL) \
1343                 -a spl-bss-pad=$(if $(CONFIG_SPL_SEPARATE_BSS),,1) \
1344                 -a tpl-bss-pad=$(if $(CONFIG_TPL_SEPARATE_BSS),,1) \
1345                 -a spl-dtb=$(CONFIG_SPL_OF_REAL) \
1346                 -a tpl-dtb=$(CONFIG_TPL_OF_REAL) \
1347                 -a pre-load-key-path=${PRE_LOAD_KEY_PATH} \
1348                 $(BINMAN_$(@F))
1349
1350 OBJCOPYFLAGS_u-boot.ldr.hex := -I binary -O ihex
1351
1352 OBJCOPYFLAGS_u-boot.ldr.srec := -I binary -O srec
1353
1354 u-boot.ldr.hex u-boot.ldr.srec: u-boot.ldr FORCE
1355         $(call if_changed,objcopy)
1356
1357 #
1358 # U-Boot entry point, needed for booting of full-blown U-Boot
1359 # from the SPL U-Boot version.
1360 #
1361 ifndef CFG_SYS_UBOOT_START
1362 CFG_SYS_UBOOT_START := $(CONFIG_TEXT_BASE)
1363 endif
1364
1365 # Boards with more complex image requirements can provide an .its source file
1366 # or a generator script
1367 # NOTE: Please do not use this. We are migrating away from Makefile rules to use
1368 # binman instead.
1369 ifneq ($(CONFIG_SPL_FIT_SOURCE),"")
1370 U_BOOT_ITS := u-boot.its
1371 $(U_BOOT_ITS): $(subst ",,$(CONFIG_SPL_FIT_SOURCE))
1372         $(call if_changed,copy)
1373 else
1374 ifneq ($(CONFIG_USE_SPL_FIT_GENERATOR),)
1375 U_BOOT_ITS := u-boot.its
1376 $(U_BOOT_ITS): $(U_BOOT_ITS_DEPS) FORCE
1377         $(srctree)/$(CONFIG_SPL_FIT_GENERATOR) \
1378         $(patsubst %,arch/$(ARCH)/dts/%.dtb,$(subst ",,$(CONFIG_OF_LIST))) > $@
1379 endif
1380 endif
1381
1382 ifdef CONFIG_SPL_LOAD_FIT
1383 MKIMAGEFLAGS_u-boot.img = -f auto -A $(ARCH) -T firmware -C none -O u-boot \
1384         -a $(CONFIG_TEXT_BASE) -e $(CFG_SYS_UBOOT_START) \
1385         -p $(CONFIG_FIT_EXTERNAL_OFFSET) \
1386         -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board" -E \
1387         $(patsubst %,-b arch/$(ARCH)/dts/%.dtb,$(subst ",,$(DEVICE_TREE))) \
1388         $(patsubst %,-b arch/$(ARCH)/dts/%.dtb,$(subst ",,$(CONFIG_OF_LIST))) \
1389         $(patsubst %,-b arch/$(ARCH)/dts/%.dtbo,$(subst ",,$(CONFIG_OF_OVERLAY_LIST)))
1390 else
1391 MKIMAGEFLAGS_u-boot.img = -A $(ARCH) -T firmware -C none -O u-boot \
1392         -a $(CONFIG_TEXT_BASE) -e $(CFG_SYS_UBOOT_START) \
1393         -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board"
1394 MKIMAGEFLAGS_u-boot-ivt.img = -A $(ARCH) -T firmware_ivt -C none -O u-boot \
1395         -a $(CONFIG_TEXT_BASE) -e $(CFG_SYS_UBOOT_START) \
1396         -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board"
1397 u-boot-ivt.img: MKIMAGEOUTPUT = u-boot-ivt.img.log
1398 endif
1399
1400 MKIMAGEFLAGS_u-boot-dtb.img = $(MKIMAGEFLAGS_u-boot.img)
1401
1402 # Some boards have the kwbimage.cfg file written in advance, while some
1403 # other boards generate it on the fly during the build in the build tree.
1404 # Let's check if the file exists in the build tree first, otherwise we
1405 # fall back to use the one in the source tree.
1406 KWD_CONFIG_FILE = $(shell \
1407         if [ -f $(objtree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%) ]; then \
1408                 echo -n $(objtree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%); \
1409         else \
1410                 echo -n $(srctree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%); \
1411         fi)
1412
1413 MKIMAGEFLAGS_u-boot.kwb = -n $(KWD_CONFIG_FILE) \
1414         -T kwbimage -a $(CONFIG_TEXT_BASE) -e $(CONFIG_TEXT_BASE)
1415
1416 MKIMAGEFLAGS_u-boot-with-spl.kwb = -n $(KWD_CONFIG_FILE) \
1417         -T kwbimage -a $(CONFIG_TEXT_BASE) -e $(CONFIG_TEXT_BASE) \
1418         $(if $(KEYDIR),-k $(KEYDIR))
1419
1420 MKIMAGEFLAGS_u-boot.pbl = -n $(srctree)/$(CONFIG_SYS_FSL_PBL_RCW:"%"=%) \
1421                 -R $(srctree)/$(CONFIG_SYS_FSL_PBL_PBI:"%"=%) -A $(ARCH) -T pblimage
1422
1423 UBOOT_BIN := u-boot.bin
1424
1425 MKIMAGEFLAGS_u-boot-lzma.img = -A $(ARCH) -T standalone -C lzma -O u-boot \
1426         -a $(CONFIG_TEXT_BASE) -e $(CFG_SYS_UBOOT_START) \
1427         -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board"
1428
1429 u-boot.bin.lzma: u-boot.bin FORCE
1430         $(call if_changed,lzma)
1431
1432 u-boot-lzma.img: u-boot.bin.lzma FORCE
1433         $(call if_changed,mkimage)
1434
1435 u-boot-dtb.img u-boot.img u-boot.kwb u-boot.pbl u-boot-ivt.img: \
1436                 $(if $(CONFIG_SPL_LOAD_FIT),u-boot-nodtb.bin \
1437                         $(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_SANDBOX),dts/dt.dtb) \
1438                 ,$(UBOOT_BIN)) FORCE
1439         $(call if_changed,mkimage)
1440         $(BOARD_SIZE_CHECK)
1441
1442 ifeq ($(CONFIG_SPL_LOAD_FIT_FULL),y)
1443 MKIMAGEFLAGS_u-boot.itb =
1444 else
1445 MKIMAGEFLAGS_u-boot.itb = -E
1446 endif
1447 MKIMAGEFLAGS_u-boot.itb += -B 0x8
1448
1449 ifdef U_BOOT_ITS
1450 u-boot.itb: u-boot-nodtb.bin \
1451                 $(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_SANDBOX),dts/dt.dtb) \
1452                 $(if $(CONFIG_MULTI_DTB_FIT),$(FINAL_DTB_CONTAINER)) \
1453                 $(U_BOOT_ITS) FORCE
1454         $(call if_changed,mkfitimage)
1455         $(BOARD_SIZE_CHECK)
1456 endif
1457
1458 u-boot-with-spl.kwb: u-boot.bin spl/u-boot-spl.bin FORCE
1459         $(call if_changed,mkimage)
1460         $(BOARD_SIZE_CHECK)
1461
1462 u-boot.dis:     u-boot
1463                 $(OBJDUMP) -d $< > $@
1464
1465 ifneq ($(CONFIG_SPL_PAYLOAD),)
1466 SPL_PAYLOAD := $(CONFIG_SPL_PAYLOAD:"%"=%)
1467 else
1468 SPL_PAYLOAD := u-boot.bin
1469 endif
1470
1471 SPL_IMAGE := $(CONFIG_SPL_IMAGE:"%"=%)
1472
1473 OBJCOPYFLAGS_u-boot-with-spl.bin = -I binary -O binary \
1474                                    --pad-to=$(CONFIG_SPL_PAD_TO)
1475 u-boot-with-spl.bin: $(SPL_IMAGE) $(SPL_PAYLOAD) FORCE
1476         $(call if_changed,pad_cat)
1477
1478 ifeq ($(CONFIG_ARCH_LPC32XX)$(CONFIG_SPL),yy)
1479 MKIMAGEFLAGS_lpc32xx-spl.img = -T lpc32xximage -a $(CONFIG_SPL_TEXT_BASE)
1480
1481 lpc32xx-spl.img: spl/u-boot-spl.bin FORCE
1482         $(call if_changed,mkimage)
1483
1484 OBJCOPYFLAGS_lpc32xx-boot-0.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO)
1485
1486 lpc32xx-boot-0.bin: lpc32xx-spl.img FORCE
1487         $(call if_changed,objcopy)
1488
1489 OBJCOPYFLAGS_lpc32xx-boot-1.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO)
1490
1491 lpc32xx-boot-1.bin: lpc32xx-spl.img FORCE
1492         $(call if_changed,objcopy)
1493
1494 lpc32xx-full.bin: lpc32xx-boot-0.bin lpc32xx-boot-1.bin u-boot.img FORCE
1495         $(call if_changed,cat)
1496
1497 endif
1498
1499 OBJCOPYFLAGS_u-boot-with-tpl.bin = -I binary -O binary \
1500                                    --pad-to=$(CONFIG_TPL_PAD_TO)
1501 tpl/u-boot-with-tpl.bin: tpl/u-boot-tpl.bin u-boot.bin FORCE
1502         $(call if_changed,pad_cat)
1503
1504 SPL: spl/u-boot-spl.bin FORCE
1505         $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@
1506
1507 #ifeq ($(CONFIG_ARCH_IMX8M)$(CONFIG_ARCH_IMX8), y)
1508 ifeq ($(CONFIG_SPL_LOAD_IMX_CONTAINER), y)
1509 u-boot.cnt: u-boot.bin FORCE
1510         $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@
1511
1512 flash.bin: spl/u-boot-spl.bin u-boot.cnt FORCE
1513         $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@
1514 else
1515 ifeq ($(CONFIG_BINMAN),y)
1516 flash.bin: spl/u-boot-spl.bin $(INPUTS-y) FORCE
1517         $(call if_changed,binman)
1518 else
1519 flash.bin: spl/u-boot-spl.bin u-boot.itb FORCE
1520         $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@
1521 endif
1522 endif
1523 #endif
1524
1525 u-boot.uim: u-boot.bin FORCE
1526         $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@
1527
1528 u-boot-nand.imx: u-boot.imx FORCE
1529         $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@
1530
1531 u-boot-with-spl.imx u-boot-with-nand-spl.imx: SPL $(if $(CONFIG_OF_SEPARATE),u-boot.img,u-boot.uim) FORCE
1532         $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@
1533
1534 MKIMAGEFLAGS_u-boot.ubl = -n $(UBL_CONFIG) -T ublimage -e $(CONFIG_TEXT_BASE)
1535
1536 u-boot.ubl: u-boot-with-spl.bin FORCE
1537         $(call if_changed,mkimage)
1538
1539 MKIMAGEFLAGS_u-boot-spl.ais = -s -n "/dev/null" \
1540         -T aisimage -e $(CONFIG_SPL_TEXT_BASE)
1541 spl/u-boot-spl.ais: spl/u-boot-spl.bin FORCE
1542         $(call if_changed,mkimage)
1543
1544 OBJCOPYFLAGS_u-boot.ais = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO)
1545 u-boot.ais: spl/u-boot-spl.ais u-boot.img FORCE
1546         $(call if_changed,pad_cat)
1547
1548 u-boot-signed.sb: u-boot.bin spl/u-boot-spl.bin
1549         $(Q)$(MAKE) $(build)=arch/arm/cpu/arm926ejs/mxs u-boot-signed.sb
1550 u-boot.sb: u-boot.bin spl/u-boot-spl.bin
1551         $(Q)$(MAKE) $(build)=arch/arm/cpu/arm926ejs/mxs u-boot.sb
1552
1553 MKIMAGEFLAGS_u-boot-spl.img = -A $(ARCH) -T firmware -C none \
1554         -a $(CONFIG_SPL_TEXT_BASE) -e $(CONFIG_SPL_TEXT_BASE) -n XLOADER
1555 spl/u-boot-spl.img: spl/u-boot-spl.bin FORCE
1556         $(call if_changed,mkimage)
1557
1558 ifneq ($(CONFIG_ARCH_SOCFPGA),)
1559 quiet_cmd_gensplx4 = GENSPLX4 $@
1560 cmd_gensplx4 = $(OBJCOPY) -I binary -O binary --gap-fill=0x0            \
1561                         --pad-to=$(CONFIG_SPL_PAD_TO)                   \
1562                         spl/u-boot-spl.sfp spl/u-boot-spl.sfp &&        \
1563                 cat     spl/u-boot-spl.sfp spl/u-boot-spl.sfp           \
1564                         spl/u-boot-spl.sfp spl/u-boot-spl.sfp > $@ || { rm -f $@; false; }
1565 spl/u-boot-splx4.sfp: spl/u-boot-spl.sfp FORCE
1566         $(call if_changed,gensplx4)
1567
1568 quiet_cmd_socboot = SOCBOOT $@
1569 cmd_socboot = cat       spl/u-boot-splx4.sfp u-boot.img > $@ || { rm -f $@; false; }
1570 u-boot-with-spl.sfp: spl/u-boot-splx4.sfp u-boot.img FORCE
1571         $(call if_changed,socboot)
1572
1573 quiet_cmd_gensplpadx4 = GENSPLPADX4 $@
1574 cmd_gensplpadx4 =  dd if=/dev/zero of=spl/u-boot-spl.pad bs=64 count=1024 ; \
1575                    cat  spl/u-boot-spl.sfp spl/u-boot-spl.pad \
1576                         spl/u-boot-spl.sfp spl/u-boot-spl.pad \
1577                         spl/u-boot-spl.sfp spl/u-boot-spl.pad \
1578                         spl/u-boot-spl.sfp spl/u-boot-spl.pad > $@ || \
1579                         { rm -f $@ spl/u-boot-spl.pad; false; }
1580 u-boot-spl-padx4.sfp: spl/u-boot-spl.sfp FORCE
1581         $(call if_changed,gensplpadx4)
1582
1583 quiet_cmd_socnandboot = SOCNANDBOOT $@
1584 cmd_socnandboot = cat   u-boot-spl-padx4.sfp u-boot.img > $@ || { rm -f $@; false; }
1585 u-boot-with-nand-spl.sfp: u-boot-spl-padx4.sfp u-boot.img FORCE
1586         $(call if_changed,socnandboot)
1587
1588 endif
1589
1590 ifeq ($(CONFIG_MPC85XX_HAVE_RESET_VECTOR)$(CONFIG_OF_SEPARATE),yy)
1591 u-boot-dtb.bin: u-boot-nodtb.bin u-boot.dtb u-boot-br.bin FORCE
1592         $(call if_changed,binman)
1593
1594 OBJCOPYFLAGS_u-boot-br.bin := -O binary -j .bootpg -j .resetvec
1595 u-boot-br.bin: u-boot FORCE
1596         $(call if_changed,objcopy)
1597 endif
1598
1599 quiet_cmd_ldr = LD      $@
1600 cmd_ldr = $(LD) $(LDFLAGS_$(@F)) \
1601                $(filter-out FORCE,$^) -o $@
1602
1603 ifdef CONFIG_X86
1604 OBJCOPYFLAGS_u-boot-x86-start16.bin := -O binary -j .start16
1605 u-boot-x86-start16.bin: u-boot FORCE
1606         $(call if_changed,objcopy)
1607
1608 OBJCOPYFLAGS_u-boot-x86-reset16.bin := -O binary -j .resetvec
1609 u-boot-x86-reset16.bin: u-boot FORCE
1610         $(call if_changed,objcopy)
1611
1612 endif # CONFIG_X86
1613
1614 OBJCOPYFLAGS_u-boot-app.efi := $(OBJCOPYFLAGS_EFI)
1615 u-boot-app.efi: u-boot FORCE
1616         $(call if_changed,zobjcopy)
1617
1618 u-boot.bin.o: u-boot.bin FORCE
1619         $(call if_changed,efipayload)
1620
1621 u-boot-payload.lds: $(LDSCRIPT_EFI) FORCE
1622         $(call if_changed_dep,cpp_lds)
1623
1624 # Rule to link the EFI payload which contains a stub and a U-Boot binary
1625 quiet_cmd_u-boot_payload ?= LD      $@
1626       cmd_u-boot_payload ?= $(LD) $(LDFLAGS_EFI_PAYLOAD) -o $@ \
1627       -T u-boot-payload.lds arch/x86/cpu/call32.o \
1628       lib/efi/efi.o lib/efi/efi_stub.o u-boot.bin.o \
1629       $(addprefix arch/$(ARCH)/lib/,$(EFISTUB))
1630
1631 u-boot-payload: u-boot.bin.o u-boot-payload.lds FORCE
1632         $(call if_changed,u-boot_payload)
1633
1634 OBJCOPYFLAGS_u-boot-payload.efi := $(OBJCOPYFLAGS_EFI)
1635 u-boot-payload.efi: u-boot-payload FORCE
1636         $(call if_changed,zobjcopy)
1637
1638 u-boot-img.bin: spl/u-boot-spl.bin u-boot.img FORCE
1639         $(call if_changed,cat)
1640
1641 #Add a target to create boot binary having SPL binary in PBI format
1642 #concatenated with u-boot binary. It is need by PowerPC SoC having
1643 #internal SRAM <= 512KB.
1644 MKIMAGEFLAGS_u-boot-spl.pbl = -n $(srctree)/$(CONFIG_SYS_FSL_PBL_RCW:"%"=%) \
1645                 -R $(srctree)/$(CONFIG_SYS_FSL_PBL_PBI:"%"=%) -T pblimage \
1646                 -A $(ARCH) -a $(CONFIG_SPL_TEXT_BASE)
1647
1648 spl/u-boot-spl.pbl: spl/u-boot-spl.bin FORCE
1649         $(call if_changed,mkimage)
1650
1651 ifeq ($(ARCH),arm)
1652 UBOOT_BINLOAD := u-boot.img
1653 else
1654 UBOOT_BINLOAD := u-boot.bin
1655 endif
1656
1657 OBJCOPYFLAGS_u-boot-with-spl-pbl.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) \
1658                           --gap-fill=0xff
1659
1660 u-boot-with-spl-pbl.bin: spl/u-boot-spl.pbl $(UBOOT_BINLOAD) FORCE
1661         $(call if_changed,pad_cat)
1662
1663 quiet_cmd_u-boot-elf ?= LD      $@
1664         cmd_u-boot-elf ?= $(LD) u-boot-elf.o -o $@ \
1665         $(if $(CONFIG_SYS_BIG_ENDIAN),-EB,-EL) \
1666         -T u-boot-elf.lds --defsym=$(CONFIG_PLATFORM_ELFENTRY)=$(CONFIG_TEXT_BASE) \
1667         -Ttext=$(CONFIG_TEXT_BASE)
1668 u-boot.elf: u-boot.bin u-boot-elf.lds
1669         $(Q)$(OBJCOPY) -I binary $(PLATFORM_ELFFLAGS) $< u-boot-elf.o
1670         $(call if_changed,u-boot-elf)
1671
1672 u-boot-elf.lds: arch/u-boot-elf.lds prepare FORCE
1673         $(call if_changed_dep,cpp_lds)
1674
1675 # MediaTek's ARM-based u-boot needs a header to contains its load address
1676 # which is parsed by the BootROM.
1677 # If the SPL build is enabled, the header will be added to the spl binary,
1678 # and the spl binary and the u-boot.img will be combined into one file.
1679 # Otherwise the header will be added to the u-boot.bin directly.
1680
1681 ifeq ($(CONFIG_SPL),y)
1682 spl/u-boot-spl-mtk.bin: spl/u-boot-spl
1683
1684 u-boot-mtk.bin: u-boot-with-spl.bin
1685         $(call if_changed,copy)
1686 else
1687 MKIMAGEFLAGS_u-boot-mtk.bin = -T mtk_image \
1688         -a $(CONFIG_TEXT_BASE) -e $(CONFIG_TEXT_BASE) \
1689         -n "$(patsubst "%",%,$(CONFIG_MTK_BROM_HEADER_INFO))"
1690
1691 u-boot-mtk.bin: u-boot.bin FORCE
1692         $(call if_changed,mkimage)
1693 endif
1694
1695 quiet_cmd_endian_swap = SWAP    $@
1696       cmd_endian_swap = $(srctree)/tools/endian-swap.py $< $@
1697
1698 u-boot-swap.bin: u-boot.bin FORCE
1699         $(call if_changed,endian_swap)
1700
1701 ARCH_POSTLINK := $(wildcard $(srctree)/arch/$(ARCH)/Makefile.postlink)
1702
1703 # Generate linker list symbols references to force compiler to not optimize
1704 # them away when compiling with LTO
1705 ifeq ($(LTO_ENABLE),y)
1706 u-boot-keep-syms-lto := keep-syms-lto.o
1707 u-boot-keep-syms-lto_c := $(patsubst %.o,%.c,$(u-boot-keep-syms-lto))
1708
1709 quiet_cmd_keep_syms_lto = KSL     $@
1710       cmd_keep_syms_lto = \
1711         $(srctree)/scripts/gen_ll_addressable_symbols.sh $(NM) $^ > $@
1712
1713 quiet_cmd_keep_syms_lto_cc = KSLCC   $@
1714       cmd_keep_syms_lto_cc = \
1715         $(CC) $(filter-out $(LTO_CFLAGS),$(c_flags)) -c -o $@ $<
1716
1717 $(u-boot-keep-syms-lto_c): $(u-boot-main)
1718         $(call if_changed,keep_syms_lto)
1719 $(u-boot-keep-syms-lto): $(u-boot-keep-syms-lto_c)
1720         $(call if_changed,keep_syms_lto_cc)
1721 else
1722 u-boot-keep-syms-lto :=
1723 endif
1724
1725 # Rule to link u-boot
1726 # May be overridden by arch/$(ARCH)/config.mk
1727 ifeq ($(LTO_ENABLE),y)
1728 quiet_cmd_u-boot__ ?= LTO     $@
1729       cmd_u-boot__ ?=                                                           \
1730                 $(CC) -nostdlib -nostartfiles                                   \
1731                 $(LTO_FINAL_LDFLAGS) $(c_flags)                                 \
1732                 $(KBUILD_LDFLAGS:%=-Wl,%) $(LDFLAGS_u-boot:%=-Wl,%) -o $@       \
1733                 -T u-boot.lds $(u-boot-init)                                    \
1734                 -Wl,--whole-archive                                             \
1735                         $(u-boot-main)                                          \
1736                         $(u-boot-keep-syms-lto)                                 \
1737                         $(PLATFORM_LIBS)                                        \
1738                 -Wl,--no-whole-archive                                          \
1739                 -Wl,-Map,u-boot.map;                                            \
1740                 $(if $(ARCH_POSTLINK), $(MAKE) -f $(ARCH_POSTLINK) $@, true)
1741 else
1742 quiet_cmd_u-boot__ ?= LD      $@
1743       cmd_u-boot__ ?= $(LD) $(KBUILD_LDFLAGS) $(LDFLAGS_u-boot) -o $@           \
1744                 -T u-boot.lds $(u-boot-init)                                    \
1745                 --whole-archive                                                 \
1746                         $(u-boot-main)                                          \
1747                 --no-whole-archive                                              \
1748                 $(PLATFORM_LIBS) -Map u-boot.map;                               \
1749                 $(if $(ARCH_POSTLINK), $(MAKE) -f $(ARCH_POSTLINK) $@, true)
1750 endif
1751
1752 quiet_cmd_smap = GEN     common/system_map.o
1753 cmd_smap = \
1754         smap=`$(call SYSTEM_MAP,u-boot) | \
1755                 awk '$$2 ~ /[tTwW]/ {printf $$1 $$3 "\\\\000"}'` ; \
1756         $(CC) $(c_flags) -DSYSTEM_MAP="\"$${smap}\"" \
1757                 -c $(srctree)/common/system_map.c -o common/system_map.o
1758
1759 u-boot: $(u-boot-init) $(u-boot-main) $(u-boot-keep-syms-lto) u-boot.lds FORCE
1760         +$(call if_changed,u-boot__)
1761 ifeq ($(CONFIG_KALLSYMS),y)
1762         $(call cmd,smap)
1763         $(call cmd,u-boot__) common/system_map.o
1764 endif
1765
1766 ifeq ($(CONFIG_RISCV),y)
1767         @tools/prelink-riscv $@
1768 endif
1769
1770 quiet_cmd_sym ?= SYM     $@
1771       cmd_sym ?= $(OBJDUMP) -t $< > $@
1772 u-boot.sym: u-boot FORCE
1773         $(call if_changed,sym)
1774
1775 # Environment processing
1776 # ---------------------------------------------------------------------------
1777
1778 # Directory where we expect the .env file, if it exists
1779 ENV_DIR := $(srctree)/board/$(BOARDDIR)
1780
1781 # Basename of .env file, stripping quotes
1782 ENV_SOURCE_FILE := $(CONFIG_ENV_SOURCE_FILE:"%"=%)
1783
1784 # Filename of .env file
1785 ENV_FILE_CFG := $(ENV_DIR)/$(ENV_SOURCE_FILE).env
1786
1787 # Default filename, if CONFIG_ENV_SOURCE_FILE is empty
1788 ENV_FILE_BOARD := $(ENV_DIR)/$(CONFIG_SYS_BOARD:"%"=%).env
1789
1790 # Select between the CONFIG_ENV_SOURCE_FILE and the default one
1791 ENV_FILE := $(if $(ENV_SOURCE_FILE),$(ENV_FILE_CFG),$(wildcard $(ENV_FILE_BOARD)))
1792
1793 # Run the environment text file through the preprocessor, but only if it is
1794 # non-empty, to save time and possible build errors if something is wonky with
1795 # the board.
1796 # If there is no ENV_FILE, produce an empty output file, to prevent a previous
1797 # build's file being used in the case of in-tree builds.
1798 quiet_cmd_gen_envp = ENVP    $@
1799       cmd_gen_envp = \
1800         if [ -s "$(ENV_FILE)" ]; then \
1801                 $(CPP) -P $(CFLAGS) -x assembler-with-cpp -D__ASSEMBLY__ \
1802                         -D__UBOOT_CONFIG__ \
1803                         -I . -I include -I $(srctree)/include \
1804                         -include linux/kconfig.h -include include/config.h \
1805                         -I$(srctree)/arch/$(ARCH)/include \
1806                         $< -o $@; \
1807         else \
1808                 rm -f $@; \
1809                 touch $@ ; \
1810         fi
1811 include/generated/env.in: include/generated/env.txt FORCE
1812         $(call cmd,gen_envp)
1813
1814 # Regenerate the environment if it changes
1815 # We use 'wildcard' since the file is not required to exist (at present), in
1816 # which case we don't want this dependency, but instead should create an empty
1817 # file
1818 # This rule is useful since it shows the source file for the environment
1819 quiet_cmd_envc = ENVC    $@
1820       cmd_envc = \
1821         if [ -f "$<" ]; then \
1822                 cat $< > $@; \
1823         elif [ -n "$(ENV_SOURCE_FILE)" ]; then \
1824                 echo "Missing file $(ENV_FILE_CFG)"; \
1825         else \
1826                 touch $@ ; \
1827         fi
1828
1829 include/generated/env.txt: $(wildcard $(ENV_FILE)) FORCE
1830         $(call cmd,envc)
1831
1832 # Write out the resulting environment, converted to a C string
1833 quiet_cmd_gen_envt = ENVT    $@
1834       cmd_gen_envt = \
1835         awk -f $(srctree)/scripts/env2string.awk $< >$@
1836 $(env_h): include/generated/env.in
1837         $(call cmd,gen_envt)
1838
1839 # ---------------------------------------------------------------------------
1840
1841 # The actual objects are generated when descending,
1842 # make sure no implicit rule kicks in
1843 $(sort $(u-boot-init) $(u-boot-main)): $(u-boot-dirs) ;
1844
1845 # Handle descending into subdirectories listed in $(u-boot-dirs)
1846 # Preset locale variables to speed up the build process. Limit locale
1847 # tweaks to this spot to avoid wrong language settings when running
1848 # make menuconfig etc.
1849 # Error messages still appears in the original language
1850
1851 PHONY += $(u-boot-dirs)
1852 $(u-boot-dirs): prepare scripts
1853         $(Q)$(MAKE) $(build)=$@
1854
1855 tools: prepare
1856 # The "tools" are needed early
1857 $(filter-out tools, $(u-boot-dirs)): tools
1858 # The "examples" conditionally depend on U-Boot (say, when USE_PRIVATE_LIBGCC
1859 # is "yes"), so compile examples after U-Boot is compiled.
1860 examples: $(filter-out examples, $(u-boot-dirs))
1861
1862 define filechk_uboot.release
1863         echo "$(UBOOTVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))"
1864 endef
1865
1866 # Store (new) UBOOTRELEASE string in include/config/uboot.release
1867 include/config/uboot.release: include/config/auto.conf FORCE
1868         $(call filechk,uboot.release)
1869
1870
1871 # Things we need to do before we recursively start building the kernel
1872 # or the modules are listed in "prepare".
1873 # A multi level approach is used. prepareN is processed before prepareN-1.
1874 # archprepare is used in arch Makefiles and when processed asm symlink,
1875 # version.h and scripts_basic is processed / created.
1876
1877 # Listed in dependency order
1878 PHONY += prepare archprepare prepare0 prepare1 prepare2 prepare3
1879
1880 # prepare3 is used to check if we are building in a separate output directory,
1881 # and if so do:
1882 # 1) Check that make has not been executed in the kernel src $(srctree)
1883 prepare3: include/config/uboot.release
1884 ifneq ($(KBUILD_SRC),)
1885         @$(kecho) '  Using $(srctree) as source for U-Boot'
1886         $(Q)if [ -f $(srctree)/.config -o -d $(srctree)/include/config ]; then \
1887                 echo >&2 "  $(srctree) is not clean, please run 'make mrproper'"; \
1888                 echo >&2 "  in the '$(srctree)' directory.";\
1889                 /bin/false; \
1890         fi;
1891 endif
1892
1893 # prepare2 creates a makefile if using a separate output directory
1894 prepare2: prepare3 outputmakefile cfg
1895
1896 prepare1: prepare2 $(version_h) $(timestamp_h) $(dt_h) $(env_h) \
1897                    include/config/auto.conf
1898 ifeq ($(wildcard $(LDSCRIPT)),)
1899         @echo >&2 "  Could not find linker script."
1900         @/bin/false
1901 endif
1902
1903 ifeq ($(CONFIG_USE_DEFAULT_ENV_FILE),y)
1904 prepare1: $(defaultenv_h)
1905
1906 envtools: $(defaultenv_h)
1907 endif
1908
1909 archprepare: prepare1 scripts_basic
1910
1911 prepare0: archprepare FORCE
1912         $(Q)$(MAKE) $(build)=.
1913
1914 # All the preparing..
1915 prepare: prepare0
1916
1917 # Generate some files
1918 # ---------------------------------------------------------------------------
1919
1920 # Use sed to remove leading zeros from PATCHLEVEL to avoid using octal numbers
1921 define filechk_version.h
1922         (echo \#define PLAIN_VERSION \"$(UBOOTRELEASE)\"; \
1923         echo \#define U_BOOT_VERSION \"U-Boot \" PLAIN_VERSION; \
1924         echo \#define U_BOOT_VERSION_NUM $(VERSION); \
1925         echo \#define U_BOOT_VERSION_NUM_PATCH $$(echo $(PATCHLEVEL) | \
1926                 sed -e "s/^0*//"); \
1927         echo \#define CC_VERSION_STRING \"$$(LC_ALL=C $(CC) --version | head -n 1)\"; \
1928         echo \#define LD_VERSION_STRING \"$$(LC_ALL=C $(LD) --version | head -n 1)\"; )
1929 endef
1930
1931 # The SOURCE_DATE_EPOCH mechanism requires a date that behaves like GNU date.
1932 # The BSD date on the other hand behaves different and would produce errors
1933 # with the misused '-d' switch.  Respect that and search a working date with
1934 # well known pre- and suffixes for the GNU variant of date.
1935 define filechk_timestamp.h
1936         (if test -n "$${SOURCE_DATE_EPOCH}"; then \
1937                 SOURCE_DATE="@$${SOURCE_DATE_EPOCH}"; \
1938                 DATE=""; \
1939                 for date in gdate date.gnu date; do \
1940                         $${date} -u -d "$${SOURCE_DATE}" >/dev/null 2>&1 && DATE="$${date}"; \
1941                 done; \
1942                 if test -n "$${DATE}"; then \
1943                         LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_DATE "%b %d %C%y"'; \
1944                         LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_TIME "%T"'; \
1945                         LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_TZ "%z"'; \
1946                         LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_EPOCH %s'; \
1947                 else \
1948                         return 42; \
1949                 fi; \
1950         else \
1951                 LC_ALL=C date +'#define U_BOOT_DATE "%b %d %C%y"'; \
1952                 LC_ALL=C date +'#define U_BOOT_TIME "%T"'; \
1953                 LC_ALL=C date +'#define U_BOOT_TZ "%z"'; \
1954                 LC_ALL=C date +'#define U_BOOT_EPOCH %s'; \
1955         fi)
1956 endef
1957
1958 define filechk_defaultenv.h
1959         ( { grep -v '^#' | grep -v '^$$' || true ; echo '' ; } | \
1960          tr '\n' '\0' | \
1961          sed -e 's/\\\x0\s*//g' | \
1962          xxd -i ; )
1963 endef
1964
1965 define filechk_dt.h
1966         (if test -n "$${DEVICE_TREE}"; then \
1967                 echo \#define DEVICE_TREE \"$(DEVICE_TREE)\"; \
1968         else \
1969                 echo \#define DEVICE_TREE CONFIG_DEFAULT_DEVICE_TREE; \
1970         fi)
1971 endef
1972
1973 $(version_h): include/config/uboot.release FORCE
1974         $(call filechk,version.h)
1975
1976 $(timestamp_h): $(srctree)/Makefile FORCE
1977         $(call filechk,timestamp.h)
1978
1979 $(dt_h): $(srctree)/Makefile FORCE
1980         $(call filechk,dt.h)
1981
1982 $(defaultenv_h): $(CONFIG_DEFAULT_ENV_FILE:"%"=%) FORCE
1983         $(call filechk,defaultenv.h)
1984
1985 # ---------------------------------------------------------------------------
1986 # Devicetree files
1987
1988 ifneq ($(wildcard $(srctree)/arch/$(SRCARCH)/boot/dts/),)
1989 dtstree := arch/$(SRCARCH)/boot/dts
1990 endif
1991
1992 ifneq ($(dtstree),)
1993
1994 %.dtb: prepare3 scripts_dtc
1995         $(Q)$(MAKE) $(build)=$(dtstree) $(dtstree)/$@
1996
1997 PHONY += dtbs dtbs_install
1998 dtbs: prepare3 scripts_dtc
1999         $(Q)$(MAKE) $(build)=$(dtstree)
2000
2001 dtbs_install:
2002         $(Q)$(MAKE) $(dtbinst)=$(dtstree)
2003
2004 endif
2005
2006 # Check dtc and pylibfdt, if DTC is provided, else build them
2007 PHONY += scripts_dtc
2008 scripts_dtc: scripts_basic
2009         $(Q)if test "$(DTC)" = "$(DTC_INTREE)"; then \
2010                 $(MAKE) $(build)=scripts/dtc; \
2011         else \
2012                 if ! $(DTC) -v >/dev/null; then \
2013                         echo '*** Failed to check dtc version: $(DTC)'; \
2014                         false; \
2015                 else \
2016                         if test "$(call dtc-version)" -lt $(DTC_MIN_VERSION); then \
2017                                 echo '*** Your dtc is too old, please upgrade to dtc $(DTC_MIN_VERSION) or newer'; \
2018                                 false; \
2019                         else \
2020                                 if [ -n "$(CONFIG_PYLIBFDT)" ]; then \
2021                                         if ! echo "import libfdt" | $(PYTHON3) 2>/dev/null; then \
2022                                                 echo '*** pylibfdt does not seem to be available with $(PYTHON3)'; \
2023                                                 false; \
2024                                         fi; \
2025                                 fi; \
2026                         fi; \
2027                 fi; \
2028         fi
2029
2030 # ---------------------------------------------------------------------------
2031 quiet_cmd_cpp_lds = LDS     $@
2032 cmd_cpp_lds = $(CPP) -Wp,-MD,$(depfile) $(cpp_flags) $(LDPPFLAGS) \
2033                 -D__ASSEMBLY__ -x assembler-with-cpp -std=c99 -P -o $@ $<
2034
2035 u-boot.lds: $(LDSCRIPT) prepare FORCE
2036         $(call if_changed_dep,cpp_lds)
2037
2038 spl/u-boot-spl.bin: spl/u-boot-spl
2039         @:
2040         $(SPL_SIZE_CHECK)
2041
2042 spl/u-boot-spl-dtb.bin: spl/u-boot-spl
2043         @:
2044
2045 spl/u-boot-spl-dtb.hex: spl/u-boot-spl
2046         @:
2047
2048 spl/u-boot-spl: tools prepare $(if $(CONFIG_SPL_OF_CONTROL),dts/dt.dtb)
2049         $(Q)$(MAKE) obj=spl -f $(srctree)/scripts/Makefile.spl all
2050
2051 spl/sunxi-spl.bin: spl/u-boot-spl
2052         @:
2053
2054 spl/sunxi-spl-with-ecc.bin: spl/sunxi-spl.bin
2055         @:
2056
2057 spl/u-boot-spl.sfp: spl/u-boot-spl
2058         @:
2059
2060 spl/boot.bin: spl/u-boot-spl
2061         @:
2062
2063 tpl/u-boot-tpl.bin: tpl/u-boot-tpl
2064         @:
2065         $(TPL_SIZE_CHECK)
2066
2067 tpl/u-boot-tpl: tools prepare $(if $(CONFIG_TPL_OF_CONTROL),dts/dt.dtb)
2068         $(Q)$(MAKE) obj=tpl -f $(srctree)/scripts/Makefile.spl all
2069
2070 vpl/u-boot-vpl.bin: vpl/u-boot-vpl
2071         @:
2072         $(VPL_SIZE_CHECK)
2073
2074 vpl/u-boot-vpl: tools prepare $(if $(CONFIG_TPL_OF_CONTROL),dts/dt.dtb)
2075         $(Q)$(MAKE) obj=vpl -f $(srctree)/scripts/Makefile.spl all
2076
2077 TAG_SUBDIRS := $(patsubst %,$(srctree)/%,$(u-boot-dirs) include)
2078
2079 FIND := find
2080 FINDFLAGS := -L
2081
2082 tags ctags:
2083                 ctags -w -o ctags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \
2084                                                 -name '*.[chS]' -print`
2085                 ln -s ctags tags
2086
2087 etags:
2088                 etags -a -o etags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \
2089                                                 -name '*.[chS]' -print`
2090 cscope:
2091                 $(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) -name '*.[chS]' -print > \
2092                                                 cscope.files
2093                 @find $(TAG_SUBDIRS) -name '*.[chS]' -type l -print | \
2094                         grep -xvf - cscope.files > cscope.files.no-symlinks; \
2095                 mv cscope.files.no-symlinks cscope.files
2096                 cscope -b -q -k
2097
2098 SYSTEM_MAP = \
2099                 $(NM) $1 | \
2100                 grep -v '\(compiled\)\|\(\.o$$\)\|\( [aUw] \)\|\(\.\.ng$$\)\|\(LASH[RL]DI\)' | \
2101                 LC_ALL=C sort
2102 System.map:     u-boot
2103                 @$(call SYSTEM_MAP,$<) > $@
2104
2105 #########################################################################
2106
2107 # ARM relocations should all be R_ARM_RELATIVE (32-bit) or
2108 # R_AARCH64_RELATIVE (64-bit).
2109 checkarmreloc: u-boot
2110         @RELOC="`$(CROSS_COMPILE)readelf -r -W $< | cut -d ' ' -f 4 | \
2111                 grep R_A | sort -u`"; \
2112         if test "$$RELOC" != "R_ARM_RELATIVE" -a \
2113                  "$$RELOC" != "R_AARCH64_RELATIVE"; then \
2114                 echo "$< contains unexpected relocations: $$RELOC"; \
2115                 false; \
2116         fi
2117
2118 tools/version.h: include/version.h
2119         $(Q)mkdir -p $(dir $@)
2120         $(call if_changed,copy)
2121
2122 envtools: scripts_basic $(version_h) $(timestamp_h) tools/version.h
2123         $(Q)$(MAKE) $(build)=tools/env
2124
2125 tools-only: export TOOLS_ONLY=y
2126 tools-only: scripts_basic $(version_h) $(timestamp_h) tools/version.h
2127         $(Q)$(MAKE) $(build)=tools
2128
2129 tools-all: export HOST_TOOLS_ALL=y
2130 tools-all: envtools tools ;
2131
2132 cross_tools: export CROSS_BUILD_TOOLS=y
2133 cross_tools: tools ;
2134
2135 .PHONY : CHANGELOG
2136 CHANGELOG:
2137         git log --no-merges U-Boot-1_1_5.. | \
2138         unexpand -a | sed -e 's/\s\s*$$//' > $@
2139
2140 #########################################################################
2141
2142 ###
2143 # Cleaning is done on three levels.
2144 # make clean     Delete most generated files
2145 #                Leave enough to build external modules
2146 # make mrproper  Delete the current configuration, and all generated files
2147 # make distclean Remove editor backup files, patch leftover files and the like
2148
2149 # Directories & files removed with 'make clean'
2150 CLEAN_DIRS  += $(MODVERDIR) \
2151                $(foreach d, spl tpl, $(patsubst %,$d/%, \
2152                         $(filter-out include, $(shell ls -1 $d 2>/dev/null))))
2153
2154 CLEAN_FILES += include/bmp_logo.h include/bmp_logo_data.h \
2155                include/generated/env.* drivers/video/u_boot_logo.S \
2156                tools/version.h u-boot* MLO* SPL System.map fit-dtb.blob* \
2157                u-boot-ivt.img.log u-boot-dtb.imx.log SPL.log u-boot.imx.log \
2158                lpc32xx-* bl31.c bl31.elf bl31_*.bin image.map tispl.bin* \
2159                idbloader.img flash.bin flash.log defconfig keep-syms-lto.c \
2160                mkimage-out.spl.mkimage mkimage.spl.mkimage imx-boot.map \
2161                itb.fit.fit itb.fit.itb itb.map spl.map mkimage-out.rom.mkimage \
2162                mkimage.rom.mkimage rom.map simple-bin.map simple-bin-spi.map \
2163                idbloader-spi.img
2164
2165 # Directories & files removed with 'make mrproper'
2166 MRPROPER_DIRS  += include/config include/generated spl tpl \
2167                   .tmp_objdiff doc/output include/asm
2168
2169 # Remove include/asm symlink created by U-Boot before v2014.01
2170 MRPROPER_FILES += .config .config.old include/autoconf.mk* include/config.h \
2171                   ctags etags tags TAGS cscope* GPATH GTAGS GRTAGS GSYMS \
2172                   drivers/video/fonts/*.S include/asm
2173
2174 # clean - Delete most, but leave enough to build external modules
2175 #
2176 clean: rm-dirs  := $(CLEAN_DIRS)
2177 clean: rm-files := $(CLEAN_FILES)
2178
2179 clean-dirs      := $(foreach f,$(u-boot-alldirs),$(if $(wildcard $(srctree)/$f/Makefile),$f))
2180
2181 clean-dirs      := $(addprefix _clean_, $(clean-dirs))
2182
2183 PHONY += $(clean-dirs) clean archclean
2184 $(clean-dirs):
2185         $(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$@)
2186
2187 clean: $(clean-dirs)
2188         $(call cmd,rmdirs)
2189         $(call cmd,rmfiles)
2190         @find $(if $(KBUILD_EXTMOD), $(KBUILD_EXTMOD), .) $(RCS_FIND_IGNORE) \
2191                 \( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \
2192                 -o -name '*.ko.*' -o -name '*.su' -o -name '*.pyc' \
2193                 -o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \
2194                 -o -name '*.lex.c' -o -name '*.tab.[ch]' \
2195                 -o -name '*.asn1.[ch]' \
2196                 -o -name '*.symtypes' -o -name 'modules.order' \
2197                 -o -name modules.builtin -o -name '.tmp_*.o.*' \
2198                 -o -name 'dsdt_generated.aml' -o -name 'dsdt_generated.asl.tmp' \
2199                 -o -name 'dsdt_generated.c' \
2200                 -o -name '*.efi' -o -name '*.gcno' -o -name '*.so' \) \
2201                 -type f -print | xargs rm -f
2202
2203 # mrproper - Delete all generated files, including .config
2204 #
2205 mrproper: rm-dirs  := $(wildcard $(MRPROPER_DIRS))
2206 mrproper: rm-files := $(wildcard $(MRPROPER_FILES))
2207 mrproper-dirs      := $(addprefix _mrproper_,scripts)
2208
2209 PHONY += $(mrproper-dirs) mrproper archmrproper
2210 $(mrproper-dirs):
2211         $(Q)$(MAKE) $(clean)=$(patsubst _mrproper_%,%,$@)
2212
2213 mrproper: clean $(mrproper-dirs)
2214         $(call cmd,rmdirs)
2215         $(call cmd,rmfiles)
2216         @rm -f arch/*/include/asm/arch
2217
2218 # distclean
2219 #
2220 PHONY += distclean
2221
2222 distclean: mrproper
2223         @find $(srctree) $(RCS_FIND_IGNORE) \
2224                 \( -name '*.orig' -o -name '*.rej' -o -name '*~' \
2225                 -o -name '*.bak' -o -name '#*#' -o -name '.*.orig' \
2226                 -o -name '.*.rej' -o -name '*%' -o -name 'core' \
2227                 -o -name '*.pyc' \) \
2228                 -type f -print | xargs rm -f
2229         @rm -f boards.cfg CHANGELOG
2230
2231 # See doc/develop/python_cq.rst
2232 PHONY += pylint pylint_err
2233 PYLINT_BASE := scripts/pylint.base
2234 PYLINT_CUR := pylint.cur
2235 PYLINT_DIFF := pylint.diff
2236 pylint:
2237         $(Q)echo "Running pylint on all files (summary in $(PYLINT_CUR); output in pylint.out/)"
2238         $(Q)mkdir -p pylint.out
2239         $(Q)rm -f pylint.out/out*
2240         $(Q)find tools test -name "*.py" \
2241                 | xargs -n1 -P$(shell nproc 2>/dev/null || echo 1) \
2242                         sh -c 'pylint --reports=y --exit-zero -f parseable --ignore-imports=yes $$@ > pylint.out/$$(echo $$@ | tr / _ | sed s/.py//)' _
2243         $(Q)rm -f $(PYLINT_CUR)
2244         $(Q)( cd pylint.out; for f in *; do \
2245                 sed -ne "s/Your code has been rated at \([-0-9.]*\).*/$$f \1/p" $$f; \
2246         done ) | sort > $(PYLINT_CUR)
2247         $(Q)base=$$(mktemp) cur=$$(mktemp); cut -d' ' -f1 $(PYLINT_BASE) >$$base; \
2248                 cut -d' ' -f1 $(PYLINT_CUR) >$$cur; \
2249                 comm -3 $$base $$cur > $(PYLINT_DIFF); \
2250                 if [ -s $(PYLINT_DIFF) ]; then \
2251                         echo "Files have been added/removed. Try:\n\tcp $(PYLINT_CUR) $(PYLINT_BASE)"; \
2252                         echo; \
2253                         echo "Added files:"; \
2254                         comm -13 $$base $$cur; \
2255                         echo; \
2256                         echo "Removed files:"; \
2257                         comm -23 $$base $$cur; \
2258                         false; \
2259                 else \
2260                         rm $$base $$cur $(PYLINT_DIFF); \
2261                 fi
2262         $(Q)bad=false; while read base_file base_val <&3 && read cur_file cur_val <&4; do \
2263                 if awk "BEGIN {exit !($$cur_val < $$base_val)}"; then \
2264                         echo "$$base_file: Score was $$base_val, now $$cur_val"; \
2265                         bad=true; fi; \
2266                 done 3<$(PYLINT_BASE) 4<$(PYLINT_CUR); \
2267                 if $$bad; then \
2268                         echo "Some files have regressed, please fix"; \
2269                         false; \
2270                 else \
2271                         echo "No pylint regressions"; \
2272                 fi
2273
2274 # Check for errors only
2275 pylint_err:
2276         $(Q)pylint -E  -j 0 --ignore-imports=yes \
2277                 $(shell find tools test -name "*.py")
2278
2279 backup:
2280         F=`basename $(srctree)` ; cd .. ; \
2281         gtar --force-local -zcvf `LC_ALL=C date "+$$F-%Y-%m-%d-%T.tar.gz"` $$F
2282
2283 PHONY += _pip pip pip_release
2284
2285 pip_release: PIP_ARGS="--real"
2286 pip_test: PIP_ARGS=""
2287 pip: PIP_ARGS="-n"
2288
2289 pip pip_test pip_release: _pip
2290
2291 _pip:
2292         scripts/make_pip.sh u_boot_pylib ${PIP_ARGS}
2293         scripts/make_pip.sh patman ${PIP_ARGS}
2294         scripts/make_pip.sh buildman ${PIP_ARGS}
2295         scripts/make_pip.sh dtoc ${PIP_ARGS}
2296         scripts/make_pip.sh binman ${PIP_ARGS}
2297
2298 help:
2299         @echo  'Cleaning targets:'
2300         @echo  '  clean           - Remove most generated files but keep the config'
2301         @echo  '  mrproper        - Remove all generated files + config + various backup files'
2302         @echo  '  distclean       - mrproper + remove editor backup and patch files'
2303         @echo  ''
2304         @echo  'Configuration targets:'
2305         @$(MAKE) -f $(srctree)/scripts/kconfig/Makefile help
2306         @echo  ''
2307         @echo  'Test targets:'
2308         @echo  ''
2309         @echo  '  check           - Run all automated tests that use sandbox'
2310         @echo  '  pcheck          - Run quick automated tests in parallel'
2311         @echo  '  qcheck          - Run quick automated tests that use sandbox'
2312         @echo  '  tcheck          - Run quick automated tests on tools'
2313         @echo  '  pylint          - Run pylint on all Python files'
2314         @echo  ''
2315         @echo  'Other generic targets:'
2316         @echo  '  all             - Build all necessary images depending on configuration'
2317         @echo  '  tests           - Build U-Boot for sandbox and run tests'
2318         @echo  '* u-boot          - Build the bare u-boot'
2319         @echo  '  dir/            - Build all files in dir and below'
2320         @echo  '  dir/file.[oisS] - Build specified target only'
2321         @echo  '  dir/file.lst    - Build specified mixed source/assembly target only'
2322         @echo  '                    (requires a recent binutils and recent build (System.map))'
2323         @echo  '  tags/ctags      - Generate ctags file for editors'
2324         @echo  '  etags           - Generate etags file for editors'
2325         @echo  '  cscope          - Generate cscope index'
2326         @echo  '  ubootrelease    - Output the release version string (use with make -s)'
2327         @echo  '  ubootversion    - Output the version stored in Makefile (use with make -s)'
2328         @echo  "  cfg             - Don't build, just create the .cfg files"
2329         @echo  "  envtools        - Build only the target-side environment tools"
2330         @echo  ''
2331         @echo  'PyPi / pip targets:'
2332         @echo  '  pip             - Check building of PyPi packages'
2333         @echo  '  pip_test        - Build PyPi pakages and upload to test server'
2334         @echo  '  pip_release     - Build PyPi pakages and upload to release server'
2335         @echo  ''
2336         @echo  'Static analysers'
2337         @echo  '  checkstack      - Generate a list of stack hogs'
2338         @echo  '  coccicheck      - Execute static code analysis with Coccinelle'
2339         @echo  ''
2340         @echo  'Documentation targets:'
2341         @$(MAKE) -f $(srctree)/doc/Makefile dochelp
2342         @echo  ''
2343         @echo  '  make V=0|1 [targets] 0 => quiet build (default), 1 => verbose build'
2344         @echo  '  make V=2   [targets] 2 => give reason for rebuild of target'
2345         @echo  '  make O=dir [targets] Locate all output files in "dir", including .config'
2346         @echo  '  make C=1   [targets] Check all c source with $$CHECK (sparse by default)'
2347         @echo  '  make C=2   [targets] Force check of all c source with $$CHECK'
2348         @echo  '  make RECORDMCOUNT_WARN=1 [targets] Warn about ignored mcount sections'
2349         @echo  '  make W=n   [targets] Enable extra gcc checks, n=1,2,3 where'
2350         @echo  '                1: warnings which may be relevant and do not occur too often'
2351         @echo  '                2: warnings which occur quite often but may still be relevant'
2352         @echo  '                3: more obscure warnings, can most likely be ignored'
2353         @echo  '                Multiple levels can be combined with W=12 or W=123'
2354         @echo  ''
2355         @echo  'Execute "make" or "make all" to build all targets marked with [*] '
2356         @echo  'For further info see the ./README file'
2357
2358 tests check:
2359         $(srctree)/test/run
2360
2361 pcheck:
2362         $(srctree)/test/run parallel
2363
2364 qcheck:
2365         $(srctree)/test/run quick
2366
2367 tcheck:
2368         $(srctree)/test/run tools
2369
2370 # Documentation targets
2371 # ---------------------------------------------------------------------------
2372 DOC_TARGETS := xmldocs latexdocs pdfdocs htmldocs epubdocs cleandocs \
2373                linkcheckdocs dochelp refcheckdocs texinfodocs infodocs
2374 PHONY += $(DOC_TARGETS)
2375 $(DOC_TARGETS): scripts_basic FORCE
2376         $(Q)$(MAKE) $(build)=doc $@
2377
2378 PHONY += checkstack ubootrelease ubootversion
2379
2380 checkstack:
2381         $(OBJDUMP) -d u-boot $$(find . -name u-boot-spl) | \
2382         $(PERL) $(src)/scripts/checkstack.pl $(ARCH)
2383
2384 ubootrelease:
2385         @echo "$(UBOOTVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))"
2386
2387 ubootversion:
2388         @echo $(UBOOTVERSION)
2389
2390 # Single targets
2391 # ---------------------------------------------------------------------------
2392 # Single targets are compatible with:
2393 # - build with mixed source and output
2394 # - build with separate output dir 'make O=...'
2395 # - external modules
2396 #
2397 #  target-dir => where to store outputfile
2398 #  build-dir  => directory in kernel source tree to use
2399
2400 ifeq ($(KBUILD_EXTMOD),)
2401         build-dir  = $(patsubst %/,%,$(dir $@))
2402         target-dir = $(dir $@)
2403 else
2404         zap-slash=$(filter-out .,$(patsubst %/,%,$(dir $@)))
2405         build-dir  = $(KBUILD_EXTMOD)$(if $(zap-slash),/$(zap-slash))
2406         target-dir = $(if $(KBUILD_EXTMOD),$(dir $<),$(dir $@))
2407 endif
2408
2409 %.s: %.c prepare scripts FORCE
2410         $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
2411 %.i: %.c prepare scripts FORCE
2412         $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
2413 %.o: %.c prepare scripts FORCE
2414         $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
2415 %.lst: %.c prepare scripts FORCE
2416         $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
2417 %.s: %.S prepare scripts FORCE
2418         $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
2419 %.o: %.S prepare scripts FORCE
2420         $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
2421 %.symtypes: %.c prepare scripts FORCE
2422         $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
2423
2424 # Modules
2425 /: prepare scripts FORCE
2426         $(cmd_crmodverdir)
2427         $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \
2428         $(build)=$(build-dir)
2429 %/: prepare scripts FORCE
2430         $(cmd_crmodverdir)
2431         $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \
2432         $(build)=$(build-dir)
2433 %.ko: prepare scripts FORCE
2434         $(cmd_crmodverdir)
2435         $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1)   \
2436         $(build)=$(build-dir) $(@:.ko=.o)
2437         $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost
2438
2439 quiet_cmd_genenv = GENENV  $@
2440 cmd_genenv = \
2441         $(objtree)/tools/printinitialenv | \
2442         sed -e '/^\s*$$/d' | \
2443         sort --field-separator== -k1,1 --stable -o $@
2444
2445 u-boot-initial-env: $(env_h) FORCE
2446         $(Q)$(MAKE) $(build)=tools $(objtree)/tools/printinitialenv
2447         $(call if_changed,genenv)
2448
2449 # Consistency checks
2450 # ---------------------------------------------------------------------------
2451
2452 PHONY += coccicheck
2453
2454 coccicheck:
2455         $(Q)$(CONFIG_SHELL) $(srctree)/scripts/$@
2456
2457 # FIXME Should go into a make.lib or something
2458 # ===========================================================================
2459
2460 quiet_cmd_rmdirs = $(if $(wildcard $(rm-dirs)),CLEAN   $(wildcard $(rm-dirs)))
2461       cmd_rmdirs = rm -rf $(rm-dirs)
2462
2463 quiet_cmd_rmfiles = $(if $(wildcard $(rm-files)),CLEAN   $(wildcard $(rm-files)))
2464       cmd_rmfiles = rm -f $(rm-files)
2465
2466 # read all saved command lines
2467
2468 cmd_files := $(wildcard .*.cmd)
2469
2470 ifneq ($(cmd_files),)
2471   $(cmd_files): ;       # Do not try to update included dependency files
2472   include $(cmd_files)
2473 endif
2474
2475 endif    #ifeq ($(config-targets),1)
2476 endif    #ifeq ($(mixed-targets),1)
2477 endif   # skip-makefile
2478
2479 PHONY += FORCE
2480 FORCE:
2481
2482 # Declare the contents of the PHONY variable as phony.  We keep that
2483 # information in a variable so we can use it in if_changed and friends.
2484 .PHONY: $(PHONY)