Makefile

   1 # SPDX-License-Identifier: GPL-2.0+
   2
   3 VERSION = 2023
   4 PATCHLEVEL = 10
   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 -Wno-unknown-attribute \
 427                   -D__CHECK_ENDIAN__ $(CF)
 428
 429 KBUILD_CPPFLAGS := -D__KERNEL__ -D__UBOOT__
 430
 431 KBUILD_CFLAGS   := -Wall -Wstrict-prototypes \
 432                    -Wno-format-security \
 433                    -fno-builtin -ffreestanding $(CSTD_FLAG)
 434 KBUILD_CFLAGS   += -fshort-wchar -fno-strict-aliasing
 435 KBUILD_AFLAGS   := -D__ASSEMBLY__
 436 KBUILD_LDFLAGS  :=
 437
 438 ifeq ($(cc-name),clang)
 439 ifneq ($(CROSS_COMPILE),)
 440 CLANG_TARGET    := --target=$(notdir $(CROSS_COMPILE:%-=%))
 441 LDPPFLAGS       += $(CLANG_TARGET)
 442 GCC_TOOLCHAIN_DIR := $(dir $(shell which $(LD)))
 443 CLANG_PREFIX    := --prefix=$(GCC_TOOLCHAIN_DIR)
 444 GCC_TOOLCHAIN   := $(realpath $(GCC_TOOLCHAIN_DIR)/..)
 445 endif
 446 ifneq ($(GCC_TOOLCHAIN),)
 447 CLANG_GCC_TC    := --gcc-toolchain=$(GCC_TOOLCHAIN)
 448 endif
 449 KBUILD_CFLAGS += $(CLANG_TARGET) $(CLANG_GCC_TC) $(CLANG_PREFIX)
 450 KBUILD_AFLAGS += $(CLANG_TARGET) $(CLANG_GCC_TC) $(CLANG_PREFIX)
 451 KBUILD_CFLAGS += $(call cc-option, -no-integrated-as)
 452 KBUILD_AFLAGS += $(call cc-option, -no-integrated-as)
 453 endif
 454
 455 # Don't generate position independent code
 456 KBUILD_CFLAGS   += $(call cc-option,-fno-PIE)
 457 KBUILD_AFLAGS   += $(call cc-option,-fno-PIE)
 458
 459 # Read UBOOTRELEASE from include/config/uboot.release (if it exists)
 460 UBOOTRELEASE = $(shell cat include/config/uboot.release 2> /dev/null)
 461 UBOOTVERSION = $(VERSION)$(if $(PATCHLEVEL),.$(PATCHLEVEL)$(if $(SUBLEVEL),.$(SUBLEVEL)))$(EXTRAVERSION)
 462
 463 export VERSION PATCHLEVEL SUBLEVEL UBOOTRELEASE UBOOTVERSION
 464 export ARCH CPU BOARD VENDOR SOC CPUDIR BOARDDIR
 465 export CONFIG_SHELL HOSTCC KBUILD_HOSTCFLAGS CROSS_COMPILE AS LD CC
 466 export CPP AR NM LDR STRIP OBJCOPY OBJDUMP KBUILD_HOSTLDFLAGS KBUILD_HOSTLDLIBS
 467 export MAKE LEX YACC AWK PERL PYTHON PYTHON2 PYTHON3
 468 export HOSTCXX KBUILD_HOSTCXXFLAGS CHECK CHECKFLAGS DTC DTC_FLAGS
 469
 470 export KBUILD_CPPFLAGS NOSTDINC_FLAGS UBOOTINCLUDE OBJCOPYFLAGS KBUILD_LDFLAGS
 471 export KBUILD_CFLAGS KBUILD_AFLAGS
 472
 473 export CC_VERSION_TEXT := $(shell $(CC) --version | head -n 1)
 474
 475 # When compiling out-of-tree modules, put MODVERDIR in the module
 476 # tree rather than in the kernel tree. The kernel tree might
 477 # even be read-only.
 478 export MODVERDIR := $(if $(KBUILD_EXTMOD),$(firstword $(KBUILD_EXTMOD))/).tmp_versions
 479
 480 # Files to ignore in find ... statements
 481
 482 export RCS_FIND_IGNORE := \( -name SCCS -o -name BitKeeper -o -name .svn -o    \
 483                           -name CVS -o -name .pc -o -name .hg -o -name .git \) \
 484                           -prune -o
 485 export RCS_TAR_IGNORE := --exclude SCCS --exclude BitKeeper --exclude .svn \
 486                          --exclude CVS --exclude .pc --exclude .hg --exclude .git
 487
 488 # ===========================================================================
 489 # Rules shared between *config targets and build targets
 490
 491 # Basic helpers built in scripts/
 492 PHONY += scripts_basic
 493 scripts_basic:
 494         $(Q)$(MAKE) $(build)=scripts/basic
 495         $(Q)rm -f .tmp_quiet_recordmcount
 496
 497 # To avoid any implicit rule to kick in, define an empty command.
 498 scripts/basic/%: scripts_basic ;
 499
 500 PHONY += outputmakefile
 501 # outputmakefile generates a Makefile in the output directory, if using a
 502 # separate output directory. This allows convenient use of make in the
 503 # output directory.
 504 outputmakefile:
 505 ifneq ($(KBUILD_SRC),)
 506         $(Q)ln -fsn $(srctree) source
 507         $(Q)$(CONFIG_SHELL) $(srctree)/scripts/mkmakefile $(srctree)
 508 endif
 509
 510 # To make sure we do not include .config for any of the *config targets
 511 # catch them early, and hand them over to scripts/kconfig/Makefile
 512 # It is allowed to specify more targets when calling make, including
 513 # mixing *config targets and build targets.
 514 # For example 'make oldconfig all'.
 515 # Detect when mixed targets is specified, and make a second invocation
 516 # of make so .config is not included in this case either (for *config).
 517
 518 version_h := include/generated/version_autogenerated.h
 519 timestamp_h := include/generated/timestamp_autogenerated.h
 520 defaultenv_h := include/generated/defaultenv_autogenerated.h
 521 dt_h := include/generated/dt.h
 522 env_h := include/generated/environment.h
 523
 524 no-dot-config-targets := clean clobber mrproper distclean \
 525                          help %docs check% coccicheck \
 526                          ubootversion backup tests check pcheck qcheck tcheck \
 527                          pylint pylint_err _pip pip pip_test pip_release
 528
 529 config-targets := 0
 530 mixed-targets  := 0
 531 dot-config     := 1
 532
 533 ifneq ($(filter $(no-dot-config-targets), $(MAKECMDGOALS)),)
 534         ifeq ($(filter-out $(no-dot-config-targets), $(MAKECMDGOALS)),)
 535                 dot-config := 0
 536         endif
 537 endif
 538
 539 ifeq ($(KBUILD_EXTMOD),)
 540         ifneq ($(filter config %config,$(MAKECMDGOALS)),)
 541                 config-targets := 1
 542                 ifneq ($(words $(MAKECMDGOALS)),1)
 543                         mixed-targets := 1
 544                 endif
 545         endif
 546 endif
 547
 548 ifeq ($(mixed-targets),1)
 549 # ===========================================================================
 550 # We're called with mixed targets (*config and build targets).
 551 # Handle them one by one.
 552
 553 PHONY += $(MAKECMDGOALS) __build_one_by_one
 554
 555 $(filter-out __build_one_by_one, $(MAKECMDGOALS)): __build_one_by_one
 556         @:
 557
 558 __build_one_by_one:
 559         $(Q)set -e; \
 560         for i in $(MAKECMDGOALS); do \
 561                 $(MAKE) -f $(srctree)/Makefile $$i; \
 562         done
 563
 564 else
 565 ifeq ($(config-targets),1)
 566 # ===========================================================================
 567 # *config targets only - make sure prerequisites are updated, and descend
 568 # in scripts/kconfig to make the *config target
 569
 570 KBUILD_DEFCONFIG := sandbox_defconfig
 571 export KBUILD_DEFCONFIG KBUILD_KCONFIG
 572
 573 config: scripts_basic outputmakefile FORCE
 574         $(Q)$(MAKE) $(build)=scripts/kconfig $@
 575
 576 %config: scripts_basic outputmakefile FORCE
 577         $(Q)$(MAKE) $(build)=scripts/kconfig $@
 578
 579 else
 580 # ===========================================================================
 581 # Build targets only - this includes vmlinux, arch specific targets, clean
 582 # targets and others. In general all targets except *config targets.
 583
 584 # Additional helpers built in scripts/
 585 # Carefully list dependencies so we do not try to build scripts twice
 586 # in parallel
 587 PHONY += scripts
 588 scripts: scripts_basic scripts_dtc include/config/auto.conf
 589         $(Q)$(MAKE) $(build)=$(@)
 590
 591 ifeq ($(dot-config),1)
 592 # Read in config
 593 -include include/config/auto.conf
 594
 595 # Read in dependencies to all Kconfig* files, make sure to run
 596 # oldconfig if changes are detected.
 597 -include include/config/auto.conf.cmd
 598
 599 # To avoid any implicit rule to kick in, define an empty command
 600 $(KCONFIG_CONFIG) include/config/auto.conf.cmd: ;
 601
 602 # If .config is newer than include/config/auto.conf, someone tinkered
 603 # with it and forgot to run make oldconfig.
 604 # if auto.conf.cmd is missing then we are probably in a cleaned tree so
 605 # we execute the config step to be sure to catch updated Kconfig files
 606 include/config/%.conf: $(KCONFIG_CONFIG) include/config/auto.conf.cmd
 607         $(Q)$(MAKE) -f $(srctree)/Makefile syncconfig
 608         @# If the following part fails, include/config/auto.conf should be
 609         @# deleted so "make silentoldconfig" will be re-run on the next build.
 610         $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.autoconf || \
 611                 { rm -f include/config/auto.conf; false; }
 612         @# include/config.h has been updated after "make silentoldconfig".
 613         @# We need to touch include/config/auto.conf so it gets newer
 614         @# than include/config.h.
 615         @# Otherwise, 'make silentoldconfig' would be invoked twice.
 616         $(Q)touch include/config/auto.conf
 617
 618 u-boot.cfg spl/u-boot.cfg tpl/u-boot.cfg:
 619         $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.autoconf $(@)
 620
 621 -include include/autoconf.mk
 622 -include include/autoconf.mk.dep
 623
 624 # We want to include arch/$(ARCH)/config.mk only when include/config/auto.conf
 625 # is up-to-date. When we switch to a different board configuration, old CONFIG
 626 # macros are still remaining in include/config/auto.conf. Without the following
 627 # gimmick, wrong config.mk would be included leading nasty warnings/errors.
 628 ifneq ($(wildcard $(KCONFIG_CONFIG)),)
 629 ifneq ($(wildcard include/config/auto.conf),)
 630 autoconf_is_old := $(shell find . -path ./$(KCONFIG_CONFIG) -newer \
 631                                                 include/config/auto.conf)
 632 ifeq ($(autoconf_is_old),)
 633 include config.mk
 634 include arch/$(ARCH)/Makefile
 635 endif
 636 endif
 637 endif
 638
 639 # These are set by the arch-specific config.mk. Make sure they are exported
 640 # so they can be used when building an EFI application.
 641 export EFI_LDS          # Filename of EFI link script in arch/$(ARCH)/lib
 642 export EFI_CRT0         # Filename of EFI CRT0 in arch/$(ARCH)/lib
 643 export EFI_RELOC        # Filename of EFU relocation code in arch/$(ARCH)/lib
 644 export CFLAGS_EFI       # Compiler flags to add when building EFI app
 645 export CFLAGS_NON_EFI   # Compiler flags to remove when building EFI app
 646 export EFI_TARGET       # binutils target if EFI is natively supported
 647
 648 export LTO_ENABLE
 649
 650 # This is y if LTO is enabled for this build. See NO_LTO=1 to disable LTO
 651 ifeq ($(NO_LTO),)
 652 LTO_ENABLE=$(if $(CONFIG_LTO),y)
 653 endif
 654
 655 # If board code explicitly specified LDSCRIPT or CONFIG_SYS_LDSCRIPT, use
 656 # that (or fail if absent).  Otherwise, search for a linker script in a
 657 # standard location.
 658
 659 ifndef LDSCRIPT
 660         #LDSCRIPT := $(srctree)/board/$(BOARDDIR)/u-boot.lds.debug
 661         ifdef CONFIG_SYS_LDSCRIPT
 662                 # need to strip off double quotes
 663                 LDSCRIPT := $(srctree)/$(CONFIG_SYS_LDSCRIPT:"%"=%)
 664         endif
 665 endif
 666
 667 # If there is no specified link script, we look in a number of places for it
 668 ifndef LDSCRIPT
 669         ifeq ($(wildcard $(LDSCRIPT)),)
 670                 LDSCRIPT := $(srctree)/board/$(BOARDDIR)/u-boot.lds
 671         endif
 672         ifeq ($(wildcard $(LDSCRIPT)),)
 673                 LDSCRIPT := $(srctree)/$(CPUDIR)/u-boot.lds
 674         endif
 675         ifeq ($(wildcard $(LDSCRIPT)),)
 676                 LDSCRIPT := $(srctree)/arch/$(ARCH)/cpu/u-boot.lds
 677         endif
 678 endif
 679
 680 else
 681 # Dummy target needed, because used as prerequisite
 682 include/config/auto.conf: ;
 683 endif # $(dot-config)
 684
 685 ifdef CONFIG_CC_OPTIMIZE_FOR_DEBUG
 686 KBUILD_HOSTCFLAGS   := -Wall -Wstrict-prototypes -Og -g -fomit-frame-pointer \
 687                 $(HOST_LFS_CFLAGS) $(HOSTCFLAGS)
 688 # Avoid false positives -Wmaybe-uninitialized
 689 # https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78394
 690 KBUILD_HOSTCFLAGS   += -Wno-maybe-uninitialized
 691 KBUILD_HOSTCXXFLAGS := -Og -g $(HOST_LFS_CFLAGS) $(HOSTCXXFLAGS)
 692 endif
 693
 694 #
 695 # Xtensa linker script cannot be preprocessed with -ansi because of
 696 # preprocessor operations on strings that don't make C identifiers.
 697 #
 698 ifeq ($(CONFIG_XTENSA),)
 699 LDPPFLAGS       += -ansi
 700 endif
 701
 702 ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE
 703 KBUILD_CFLAGS   += -Os
 704 endif
 705
 706 ifdef CONFIG_CC_OPTIMIZE_FOR_SPEED
 707 KBUILD_CFLAGS   += -O2
 708 endif
 709
 710 ifdef CONFIG_CC_OPTIMIZE_FOR_DEBUG
 711 KBUILD_CFLAGS   += -Og -Wno-maybe-uninitialized
 712 # Avoid false positives -Wmaybe-uninitialized
 713 # https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78394
 714 KBUILD_CFLAGS   += -Wno-maybe-uninitialized
 715 endif
 716
 717 LTO_CFLAGS :=
 718 LTO_FINAL_LDFLAGS :=
 719 export LTO_CFLAGS LTO_FINAL_LDFLAGS
 720 ifeq ($(LTO_ENABLE),y)
 721         ifeq ($(cc-name),clang)
 722                 LTO_CFLAGS              += -DLTO_ENABLE -flto
 723                 LTO_FINAL_LDFLAGS       += -flto
 724
 725                 AR                      = $(shell $(CC) -print-prog-name=llvm-ar)
 726                 NM                      = $(shell $(CC) -print-prog-name=llvm-nm)
 727         else
 728                 NPROC                   := $(shell nproc 2>/dev/null || echo 1)
 729                 LTO_CFLAGS              += -DLTO_ENABLE -flto=$(NPROC)
 730                 LTO_FINAL_LDFLAGS       += -fuse-linker-plugin -flto=$(NPROC)
 731
 732                 # use plugin aware tools
 733                 AR                      = $(CROSS_COMPILE)gcc-ar
 734                 NM                      = $(CROSS_COMPILE)gcc-nm
 735         endif
 736
 737         CFLAGS_NON_EFI                  += $(LTO_CFLAGS)
 738
 739         KBUILD_CFLAGS                   += $(LTO_CFLAGS)
 740 endif
 741
 742 ifeq ($(CONFIG_STACKPROTECTOR),y)
 743 KBUILD_CFLAGS += $(call cc-option,-fstack-protector-strong)
 744 CFLAGS_EFI += $(call cc-option,-fno-stack-protector)
 745 else
 746 KBUILD_CFLAGS += $(call cc-option,-fno-stack-protector)
 747 endif
 748 KBUILD_CFLAGS += $(call cc-option,-fno-delete-null-pointer-checks)
 749
 750 # disable pointer signed / unsigned warnings in gcc 4.0
 751 KBUILD_CFLAGS += -Wno-pointer-sign
 752
 753 # disable stringop warnings in gcc 8+
 754 KBUILD_CFLAGS += $(call cc-disable-warning, stringop-truncation)
 755
 756 KBUILD_CFLAGS += $(call cc-disable-warning, zero-length-bounds)
 757 KBUILD_CFLAGS += $(call cc-disable-warning, array-bounds)
 758 KBUILD_CFLAGS += $(call cc-disable-warning, stringop-overflow)
 759
 760 # Enabled with W=2, disabled by default as noisy
 761 KBUILD_CFLAGS += $(call cc-disable-warning, maybe-uninitialized)
 762
 763 # change __FILE__ to the relative path from the srctree
 764 KBUILD_CFLAGS   += $(call cc-option,-fmacro-prefix-map=$(srctree)/=)
 765
 766 KBUILD_CFLAGS   += -gdwarf-4
 767 # $(KBUILD_AFLAGS) sets -g, which causes gcc to pass a suitable -g<format>
 768 # option to the assembler.
 769 KBUILD_AFLAGS   += -gdwarf-4
 770
 771 # Report stack usage if supported
 772 # ARC tools based on GCC 7.1 has an issue with stack usage
 773 # with naked functions, see commit message for more details
 774 ifndef CONFIG_ARC
 775 ifeq ($(shell $(CONFIG_SHELL) $(srctree)/scripts/gcc-stack-usage.sh $(CC)),y)
 776         KBUILD_CFLAGS += -fstack-usage
 777 endif
 778 endif
 779
 780 KBUILD_CFLAGS += $(call cc-option,-Wno-format-nonliteral)
 781 KBUILD_CFLAGS += $(call cc-disable-warning, address-of-packed-member)
 782
 783 ifdef CONFIG_CC_IS_CLANG
 784 KBUILD_CPPFLAGS += $(call cc-option,-Qunused-arguments,)
 785 KBUILD_CFLAGS += $(call cc-disable-warning, format-invalid-specifier)
 786 KBUILD_CFLAGS += $(call cc-disable-warning, gnu)
 787 KBUILD_CFLAGS += $(call cc-disable-warning, address-of-packed-member)
 788 # Quiet clang warning: comparison of unsigned expression < 0 is always false
 789 KBUILD_CFLAGS += $(call cc-disable-warning, tautological-compare)
 790 # CLANG uses a _MergedGlobals as optimization, but this breaks modpost, as the
 791 # source of a reference will be _MergedGlobals and not on of the whitelisted names.
 792 # See modpost pattern 2
 793 KBUILD_CFLAGS += $(call cc-option, -mno-global-merge,)
 794 KBUILD_CFLAGS += $(call cc-option, -fcatch-undefined-behavior)
 795 KBUILD_CFLAGS += $(call cc-disable-warning, deprecated-non-prototype)
 796 endif
 797
 798 # These warnings generated too much noise in a regular build.
 799 # Use make W=1 to enable them (see scripts/Makefile.extrawarn)
 800 KBUILD_CFLAGS += $(call cc-disable-warning, unused-but-set-variable)
 801
 802 # Prohibit date/time macros, which would make the build non-deterministic
 803 KBUILD_CFLAGS   += $(call cc-option,-Werror=date-time)
 804
 805 include scripts/Makefile.extrawarn
 806
 807 # Add user supplied CPPFLAGS, AFLAGS and CFLAGS as the last assignments
 808 KBUILD_CPPFLAGS += $(KCPPFLAGS)
 809 KBUILD_AFLAGS += $(KAFLAGS)
 810 KBUILD_CFLAGS += $(KCFLAGS)
 811
 812 KBUILD_LDFLAGS  += -z noexecstack
 813 KBUILD_LDFLAGS  += $(call ld-option,--no-warn-rwx-segments)
 814
 815 KBUILD_HOSTCFLAGS += $(if $(CONFIG_TOOLS_DEBUG),-g)
 816
 817 # Use UBOOTINCLUDE when you must reference the include/ directory.
 818 # Needed to be compatible with the O= option
 819 UBOOTINCLUDE    := \
 820         -Iinclude \
 821         $(if $(KBUILD_SRC), -I$(srctree)/include) \
 822         $(if $(CONFIG_$(SPL_)SYS_THUMB_BUILD), \
 823                 $(if $(CONFIG_HAS_THUMB2), \
 824                         $(if $(CONFIG_CPU_V7M), \
 825                                 -I$(srctree)/arch/arm/thumb1/include), \
 826                         -I$(srctree)/arch/arm/thumb1/include)) \
 827         -I$(srctree)/arch/$(ARCH)/include \
 828         -include $(srctree)/include/linux/kconfig.h
 829
 830 NOSTDINC_FLAGS += -nostdinc -isystem $(shell $(CC) -print-file-name=include)
 831
 832 # FIX ME
 833 cpp_flags := $(KBUILD_CPPFLAGS) $(PLATFORM_CPPFLAGS) $(UBOOTINCLUDE) \
 834                                                         $(NOSTDINC_FLAGS)
 835 c_flags := $(KBUILD_CFLAGS) $(cpp_flags)
 836
 837 #########################################################################
 838 # U-Boot objects....order is important (i.e. start must be first)
 839
 840 HAVE_VENDOR_COMMON_LIB = $(if $(wildcard $(srctree)/board/$(VENDOR)/common/Makefile),y,n)
 841
 842 libs-$(CONFIG_API) += api/
 843 libs-$(HAVE_VENDOR_COMMON_LIB) += board/$(VENDOR)/common/
 844 libs-y += boot/
 845 libs-y += cmd/
 846 libs-y += common/
 847 libs-$(CONFIG_OF_EMBED) += dts/
 848 libs-y += env/
 849 libs-y += lib/
 850 libs-y += fs/
 851 libs-y += net/
 852 libs-y += disk/
 853 libs-y += drivers/
 854 libs-$(CONFIG_SYS_FSL_DDR) += drivers/ddr/fsl/
 855 libs-$(CONFIG_SYS_FSL_MMDC) += drivers/ddr/fsl/
 856 libs-$(CONFIG_$(SPL_)ALTERA_SDRAM) += drivers/ddr/altera/
 857 libs-y += drivers/usb/cdns3/
 858 libs-y += drivers/usb/dwc3/
 859 libs-y += drivers/usb/common/
 860 libs-y += drivers/usb/emul/
 861 libs-y += drivers/usb/eth/
 862 libs-$(CONFIG_USB_DEVICE) += drivers/usb/gadget/
 863 libs-$(CONFIG_USB_GADGET) += drivers/usb/gadget/
 864 libs-$(CONFIG_USB_GADGET) += drivers/usb/gadget/udc/
 865 libs-y += drivers/usb/host/
 866 libs-y += drivers/usb/mtu3/
 867 libs-y += drivers/usb/musb/
 868 libs-y += drivers/usb/musb-new/
 869 libs-y += drivers/usb/isp1760/
 870 libs-y += drivers/usb/phy/
 871 libs-y += drivers/usb/ulpi/
 872 ifdef CONFIG_POST
 873 libs-y += post/
 874 endif
 875 libs-$(CONFIG_$(SPL_TPL_)UNIT_TEST) += test/
 876 libs-$(CONFIG_UT_ENV) += test/env/
 877 libs-$(CONFIG_UT_OPTEE) += test/optee/
 878 libs-$(CONFIG_UT_OVERLAY) += test/overlay/
 879
 880 libs-y += $(if $(BOARDDIR),board/$(BOARDDIR)/)
 881
 882 libs-y := $(sort $(libs-y))
 883
 884 u-boot-dirs     := $(patsubst %/,%,$(filter %/, $(libs-y))) tools examples
 885
 886 u-boot-alldirs  := $(sort $(u-boot-dirs) $(patsubst %/,%,$(filter %/, $(libs-))))
 887
 888 libs-y          := $(patsubst %/, %/built-in.o, $(libs-y))
 889
 890 u-boot-init := $(head-y)
 891 u-boot-main := $(libs-y)
 892
 893
 894 # Add GCC lib
 895 ifeq ($(CONFIG_USE_PRIVATE_LIBGCC),y)
 896 PLATFORM_LIBGCC = arch/$(ARCH)/lib/lib.a
 897 else
 898 ifndef CONFIG_CC_IS_CLANG
 899 PLATFORM_LIBGCC := -L $(shell dirname `$(CC) $(c_flags) -print-libgcc-file-name`) -lgcc
 900 endif
 901 endif
 902 PLATFORM_LIBS += $(PLATFORM_LIBGCC)
 903
 904 ifdef CONFIG_CC_COVERAGE
 905 KBUILD_CFLAGS += --coverage
 906 PLATFORM_LIBGCC += -lgcov
 907 endif
 908
 909 export PLATFORM_LIBS
 910 export PLATFORM_LIBGCC
 911
 912 # Special flags for CPP when processing the linker script.
 913 # Pass the version down so we can handle backwards compatibility
 914 # on the fly.
 915 LDPPFLAGS += \
 916         -include $(srctree)/include/u-boot/u-boot.lds.h \
 917         -DCPUDIR=$(CPUDIR) \
 918         $(shell $(LD) --version | \
 919           sed -ne 's/GNU ld version \([0-9][0-9]*\)\.\([0-9][0-9]*\).*/-DLD_MAJOR=\1 -DLD_MINOR=\2/p')
 920
 921 #########################################################################
 922 #########################################################################
 923
 924 ifneq ($(CONFIG_BOARD_SIZE_LIMIT),)
 925 BOARD_SIZE_CHECK= @ $(call size_check,$@,$(CONFIG_BOARD_SIZE_LIMIT))
 926 else
 927 BOARD_SIZE_CHECK =
 928 endif
 929
 930 ifneq ($(CONFIG_SPL_SIZE_LIMIT),0x0)
 931 SPL_SIZE_CHECK = @$(call size_check,$@,$$(tools/spl_size_limit))
 932 else
 933 SPL_SIZE_CHECK =
 934 endif
 935
 936 ifneq ($(CONFIG_TPL_SIZE_LIMIT),0x0)
 937 TPL_SIZE_CHECK = @$(call size_check,$@,$(CONFIG_TPL_SIZE_LIMIT))
 938 else
 939 TPL_SIZE_CHECK =
 940 endif
 941
 942 ifneq ($(CONFIG_VPL_SIZE_LIMIT),0x0)
 943 VPL_SIZE_CHECK = @$(call size_check,$@,$(CONFIG_VPL_SIZE_LIMIT))
 944 else
 945 VPL_SIZE_CHECK =
 946 endif
 947
 948 # Statically apply RELA-style relocations (currently arm64 only)
 949 # This is useful for arm64 where static relocation needs to be performed on
 950 # the raw binary, but certain simulators only accept an ELF file (but don't
 951 # do the relocation).
 952 ifneq ($(CONFIG_STATIC_RELA),)
 953 # $(2) is u-boot ELF, $(3) is u-boot bin, $(4) is text base
 954 quiet_cmd_static_rela = RELOC   $@
 955 cmd_static_rela = \
 956         tools/relocate-rela $(3) $(2)
 957 else
 958 quiet_cmd_static_rela =
 959 cmd_static_rela =
 960 endif
 961
 962 # Always append INPUTS so that arch config.mk's can add custom ones
 963 INPUTS-y += u-boot.srec u-boot.bin u-boot.sym System.map binary_size_check
 964
 965 ifeq ($(CONFIG_SPL_FSL_PBL),y)
 966 INPUTS-$(CONFIG_RAMBOOT_PBL) += u-boot-with-spl-pbl.bin
 967 else
 968 ifneq ($(CONFIG_NXP_ESBC), y)
 969 # For Secure Boot The Image needs to be signed and Header must also
 970 # be included. So The image has to be built explicitly
 971 INPUTS-$(CONFIG_RAMBOOT_PBL) += u-boot.pbl
 972 endif
 973 endif
 974 INPUTS-$(CONFIG_SPL) += spl/u-boot-spl.bin
 975 ifeq ($(CONFIG_MX6)$(CONFIG_IMX_HAB), yy)
 976 INPUTS-$(CONFIG_SPL_FRAMEWORK) += u-boot-ivt.img
 977 else
 978 ifeq ($(CONFIG_MX7)$(CONFIG_IMX_HAB), yy)
 979 INPUTS-$(CONFIG_SPL_FRAMEWORK) += u-boot-ivt.img
 980 else
 981 INPUTS-$(CONFIG_SPL_FRAMEWORK) += u-boot.img
 982 endif
 983 endif
 984 INPUTS-$(CONFIG_TPL) += tpl/u-boot-tpl.bin
 985 INPUTS-$(CONFIG_VPL) += vpl/u-boot-vpl.bin
 986
 987 # Allow omitting the .dtb output if it is not normally used
 988 INPUTS-$(CONFIG_OF_SEPARATE) += $(if $(CONFIG_OF_OMIT_DTB),dts/dt.dtb,u-boot.dtb)
 989 ifeq ($(CONFIG_SPL_FRAMEWORK),y)
 990 INPUTS-$(CONFIG_OF_SEPARATE) += u-boot-dtb.img
 991 endif
 992 INPUTS-$(CONFIG_SANDBOX) += u-boot.dtb
 993 ifneq ($(CONFIG_SPL_TARGET),)
 994 INPUTS-$(CONFIG_SPL) += $(CONFIG_SPL_TARGET:"%"=%)
 995 endif
 996 INPUTS-$(CONFIG_REMAKE_ELF) += u-boot.elf
 997 INPUTS-$(CONFIG_EFI_APP) += u-boot-app.efi
 998 INPUTS-$(CONFIG_EFI_STUB) += u-boot-payload.efi
 999
1000 # Generate this input file for binman
1001 ifeq ($(CONFIG_SPL),)
1002 INPUTS-$(CONFIG_ARCH_MEDIATEK) += u-boot-mtk.bin
1003 endif
1004
1005 # Add optional build target if defined in board/cpu/soc headers
1006 ifneq ($(CONFIG_BUILD_TARGET),)
1007 INPUTS-y += $(CONFIG_BUILD_TARGET:"%"=%)
1008 endif
1009
1010 ifeq ($(CONFIG_INIT_SP_RELATIVE)$(CONFIG_OF_SEPARATE),yy)
1011 INPUTS-y += init_sp_bss_offset_check
1012 endif
1013
1014 ifeq ($(CONFIG_ARCH_ROCKCHIP)_$(CONFIG_SPL_FRAMEWORK),y_)
1015 INPUTS-y += u-boot.img
1016 endif
1017
1018 INPUTS-$(CONFIG_X86) += u-boot-x86-start16.bin u-boot-x86-reset16.bin \
1019         $(if $(CONFIG_SPL_X86_16BIT_INIT),spl/u-boot-spl.bin) \
1020         $(if $(CONFIG_TPL_X86_16BIT_INIT),tpl/u-boot-tpl.bin)
1021
1022 LDFLAGS_u-boot += $(LDFLAGS_FINAL)
1023
1024 # Avoid 'Not enough room for program headers' error on binutils 2.28 onwards.
1025 LDFLAGS_u-boot += $(call ld-option, --no-dynamic-linker)
1026
1027 # ld.lld support
1028 LDFLAGS_u-boot += -z notext $(call ld-option,--apply-dynamic-relocs)
1029
1030 LDFLAGS_u-boot += --build-id=none
1031
1032 ifeq ($(CONFIG_ARC)$(CONFIG_NIOS2)$(CONFIG_X86)$(CONFIG_XTENSA),)
1033 LDFLAGS_u-boot += -Ttext $(CONFIG_TEXT_BASE)
1034 endif
1035
1036 # make the checker run with the right architecture
1037 CHECKFLAGS += --arch=$(ARCH)
1038
1039 # insure the checker run with the right endianness
1040 CHECKFLAGS += $(if $(CONFIG_CPU_BIG_ENDIAN),-mbig-endian,-mlittle-endian)
1041
1042 # the checker needs the correct machine size
1043 CHECKFLAGS += $(if $(CONFIG_64BIT),-m64,-m32)
1044
1045 # Normally we fill empty space with 0xff
1046 quiet_cmd_objcopy = OBJCOPY $@
1047 cmd_objcopy = $(OBJCOPY) --gap-fill=0xff $(OBJCOPYFLAGS) \
1048         $(OBJCOPYFLAGS_$(@F)) $< $@
1049
1050 # Provide a version which does not do this, for use by EFI
1051 quiet_cmd_zobjcopy = OBJCOPY $@
1052 cmd_zobjcopy = $(OBJCOPY) $(OBJCOPYFLAGS) $(OBJCOPYFLAGS_$(@F)) $< $@
1053
1054 quiet_cmd_efipayload = OBJCOPY $@
1055 cmd_efipayload = $(OBJCOPY) -I binary -O $(EFIPAYLOAD_BFDTARGET) -B $(EFIPAYLOAD_BFDARCH) $< $@
1056
1057 MKIMAGEOUTPUT ?= /dev/null
1058
1059 quiet_cmd_mkimage = MKIMAGE $@
1060 cmd_mkimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -d $< $@ \
1061         >$(MKIMAGEOUTPUT) $(if $(KBUILD_VERBOSE:0=), && cat $(MKIMAGEOUTPUT))
1062
1063 quiet_cmd_mkfitimage = MKIMAGE $@
1064 cmd_mkfitimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) \
1065         -f $(U_BOOT_ITS) -p $(CONFIG_FIT_EXTERNAL_OFFSET) $@ \
1066         >$(MKIMAGEOUTPUT) $(if $(KBUILD_VERBOSE:0=), && cat $(MKIMAGEOUTPUT))
1067
1068 quiet_cmd_cat = CAT     $@
1069 cmd_cat = cat $(filter-out $(PHONY), $^) > $@
1070
1071 append = cat $(filter-out $< $(PHONY), $^) >> $@
1072
1073 quiet_cmd_pad_cat = CAT     $@
1074 cmd_pad_cat = $(cmd_objcopy) && $(append) || { rm -f $@; false; }
1075
1076 quiet_cmd_lzma = LZMA    $@
1077 cmd_lzma = lzma -c -z -k -9 $< > $@
1078
1079 cfg: u-boot.cfg
1080
1081 quiet_cmd_ofcheck = OFCHK   $2
1082 cmd_ofcheck = $(srctree)/scripts/check-of.sh $2 \
1083                 $(srctree)/scripts/of_allowlist.txt
1084
1085 # Concat the value of all the CONFIGs (result is 'y' or 'yy', etc. )
1086 got = $(foreach cfg,$(1),$($(cfg)))
1087
1088 # expected value 'y for each one
1089 expect = $(foreach cfg,$(1),y)
1090
1091 # Show a deprecation message
1092 # Args:
1093 # 1: List of options to migrate to (e.g. "CONFIG_DM_MMC CONFIG_BLK")
1094 # 2: Name of component (e.g . "Ethernet drivers")
1095 # 3: Release deadline (e.g. "v202.07")
1096 # 4: Condition to require before checking (e.g. "$(CONFIG_NET)")
1097 # Note: Script avoids bash construct, hence the strange double 'if'
1098 # (patches welcome!)
1099 define deprecated
1100         @if [ -n "$(strip $(4))" ]; then if [ "$(got)" != "$(expect)" ]; then \
1101                 echo >&2 "===================== WARNING ======================"; \
1102                 echo >&2 "This board does not use $(firstword $(1)) (Driver Model"; \
1103                 echo >&2 "for $(2)). Please update the board to use"; \
1104                 echo >&2 "$(firstword $(1)) before the $(3) release. Failure to"; \
1105                 echo >&2 "update by the deadline may result in board removal."; \
1106                 echo >&2 "See doc/develop/driver-model/migration.rst for more info."; \
1107                 echo >&2 "===================================================="; \
1108         fi; fi
1109
1110 endef
1111
1112 # Timestamp file to make sure that binman always runs
1113 .binman_stamp: $(INPUTS-y) FORCE
1114 ifeq ($(CONFIG_BINMAN),y)
1115         $(call if_changed,binman)
1116 endif
1117         @touch $@
1118
1119 all: .binman_stamp
1120
1121 ifeq ($(CONFIG_DEPRECATED),y)
1122         $(warning "You have deprecated configuration options enabled in your .config! Please check your configuration.")
1123 endif
1124 ifeq ($(CONFIG_OF_EMBED)$(CONFIG_EFI_APP),y)
1125         @echo >&2 "===================== WARNING ======================"
1126         @echo >&2 "CONFIG_OF_EMBED is enabled. This option should only"
1127         @echo >&2 "be used for debugging purposes. Please use"
1128         @echo >&2 "CONFIG_OF_SEPARATE for boards in mainline."
1129         @echo >&2 "See doc/develop/devicetree/control.rst for more info."
1130         @echo >&2 "===================================================="
1131 endif
1132 ifneq ($(CONFIG_SPL_FIT_GENERATOR),)
1133         @echo >&2 "===================== WARNING ======================"
1134         @echo >&2 "This board uses CONFIG_SPL_FIT_GENERATOR. Please migrate"
1135         @echo >&2 "to binman instead, to avoid the proliferation of"
1136         @echo >&2 "arch-specific scripts with no tests."
1137         @echo >&2 "===================================================="
1138 endif
1139         $(call deprecated,CONFIG_WDT,DM watchdog,v2019.10,\
1140                 $(CONFIG_WATCHDOG)$(CONFIG_HW_WATCHDOG))
1141         $(call deprecated,CONFIG_DM_I2C,I2C drivers,v2022.04,$(CONFIG_SYS_I2C_LEGACY))
1142         @# CFG_SYS_TIMER_RATE has brackets in it for some boards which
1143         @# confuses this rule. Use if() to send just a single character which
1144         @# is enable to tell 'deprecated' that one of these symbols exists
1145         $(call deprecated,CONFIG_TIMER,Timer drivers,v2023.01,$(if $(strip $(CFG_SYS_TIMER_RATE)$(CFG_SYS_TIMER_COUNTER)),x))
1146         $(call deprecated,CONFIG_DM_SERIAL,Serial drivers,v2023.04,$(CONFIG_SERIAL))
1147         $(call deprecated,CONFIG_DM_SCSI,SCSI drivers,v2023.04,$(CONFIG_SCSI))
1148         @# Check that this build does not override OF_HAS_PRIOR_STAGE by
1149         @# disabling OF_BOARD.
1150         $(call cmd,ofcheck,$(KCONFIG_CONFIG))
1151
1152 PHONY += dtbs
1153 dtbs: dts/dt.dtb
1154         @:
1155 dts/dt.dtb: u-boot
1156         $(Q)$(MAKE) $(build)=dts dtbs
1157
1158 quiet_cmd_copy = COPY    $@
1159       cmd_copy = cp $< $@
1160
1161 ifeq ($(CONFIG_MULTI_DTB_FIT),y)
1162
1163 ifeq ($(CONFIG_MULTI_DTB_FIT_LZO),y)
1164 FINAL_DTB_CONTAINER = fit-dtb.blob.lzo
1165 else ifeq ($(CONFIG_MULTI_DTB_FIT_GZIP),y)
1166 FINAL_DTB_CONTAINER = fit-dtb.blob.gz
1167 else
1168 FINAL_DTB_CONTAINER = fit-dtb.blob
1169 endif
1170
1171 fit-dtb.blob.gz: fit-dtb.blob
1172         @gzip -kf9 $< > $@
1173
1174 fit-dtb.blob.lzo: fit-dtb.blob
1175         @lzop -f9 $< > $@
1176
1177 fit-dtb.blob: dts/dt.dtb FORCE
1178         $(call if_changed,mkimage)
1179 ifneq ($(SOURCE_DATE_EPOCH),)
1180         touch -d @$(SOURCE_DATE_EPOCH) fit-dtb.blob
1181         chmod 0600 fit-dtb.blob
1182 endif
1183
1184 MKIMAGEFLAGS_fit-dtb.blob = -f auto -A $(ARCH) -T firmware -C none -O u-boot \
1185         -a 0 -e 0 -E \
1186         $(patsubst %,-b arch/$(ARCH)/dts/%.dtb,$(subst ",,$(CONFIG_OF_LIST))) -d /dev/null
1187
1188 MKIMAGEFLAGS_fit-dtb.blob += -B 0x8
1189
1190 ifneq ($(EXT_DTB),)
1191 u-boot-fit-dtb.bin: u-boot-nodtb.bin $(EXT_DTB)
1192                 $(call if_changed,cat)
1193 else
1194 u-boot-fit-dtb.bin: u-boot-nodtb.bin $(FINAL_DTB_CONTAINER)
1195         $(call if_changed,cat)
1196 endif
1197
1198 u-boot.bin: u-boot-fit-dtb.bin FORCE
1199         $(call if_changed,copy)
1200
1201 ifneq ($(CONFIG_MPC85XX_HAVE_RESET_VECTOR)$(CONFIG_OF_SEPARATE),yy)
1202 u-boot-dtb.bin: u-boot-nodtb.bin dts/dt.dtb FORCE
1203         $(call if_changed,cat)
1204 endif
1205
1206 else ifeq ($(CONFIG_OF_SEPARATE).$(CONFIG_OF_OMIT_DTB),y.)
1207
1208 ifneq ($(CONFIG_MPC85XX_HAVE_RESET_VECTOR)$(CONFIG_OF_SEPARATE),yy)
1209 u-boot-dtb.bin: u-boot-nodtb.bin dts/dt.dtb FORCE
1210         $(call if_changed,cat)
1211 endif
1212
1213 u-boot.bin: u-boot-dtb.bin FORCE
1214         $(call if_changed,copy)
1215
1216 else
1217 u-boot.bin: u-boot-nodtb.bin FORCE
1218         $(call if_changed,copy)
1219 endif
1220
1221 # we call Makefile in arch/arm/mach-imx which
1222 # has targets which are dependent on targets defined
1223 # here. make could not resolve them and we must ensure
1224 # that they are finished before calling imx targets
1225 ifeq ($(CONFIG_MULTI_DTB_FIT),y)
1226 IMX_DEPS = u-boot-fit-dtb.bin
1227 endif
1228
1229 %.imx: $(IMX_DEPS) %.bin
1230         $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@
1231         $(BOARD_SIZE_CHECK)
1232
1233 %.vyb: %.imx
1234         $(Q)$(MAKE) $(build)=arch/arm/cpu/armv7/vf610 $@
1235
1236 quiet_cmd_copy = COPY    $@
1237       cmd_copy = cp $< $@
1238
1239 u-boot.dtb: dts/dt.dtb
1240         $(call cmd,copy)
1241
1242 OBJCOPYFLAGS_u-boot.hex := -O ihex
1243
1244 OBJCOPYFLAGS_u-boot.srec := -O srec
1245
1246 u-boot.hex u-boot.srec: u-boot FORCE
1247         $(call if_changed,objcopy)
1248
1249 OBJCOPYFLAGS_u-boot-elf.srec := $(OBJCOPYFLAGS_u-boot.srec)
1250
1251 u-boot-elf.srec: u-boot.elf FORCE
1252         $(call if_changed,objcopy)
1253
1254 OBJCOPYFLAGS_u-boot-spl.srec = $(OBJCOPYFLAGS_u-boot.srec)
1255
1256 spl/u-boot-spl.srec: spl/u-boot-spl FORCE
1257         $(call if_changed,objcopy)
1258
1259 %.scif: %.srec
1260         $(Q)$(MAKE) $(build)=arch/arm/mach-rmobile $@
1261
1262 OBJCOPYFLAGS_u-boot-nodtb.bin := -O binary \
1263                 $(if $(CONFIG_X86_16BIT_INIT),-R .start16 -R .resetvec) \
1264                 $(if $(CONFIG_MPC85XX_HAVE_RESET_VECTOR),$(if $(CONFIG_OF_SEPARATE),-R .bootpg -R .resetvec))
1265
1266 binary_size_check: u-boot-nodtb.bin FORCE
1267         @file_size=$(shell wc -c u-boot-nodtb.bin | awk '{print $$1}') ; \
1268         map_size=$(shell cat u-boot.map | \
1269                 awk '/_image_copy_start/ {start = $$1} /_image_binary_end/ {end = $$1} END {if (start != "" && end != "") print "ibase=16; " toupper(end) " - " toupper(start)}' \
1270                 | sed 's/0X//g' \
1271                 | bc); \
1272         if [ "" != "$$map_size" ]; then \
1273                 if test $$map_size -ne $$file_size; then \
1274                         echo "u-boot.map shows a binary size of $$map_size" >&2 ; \
1275                         echo "  but u-boot-nodtb.bin shows $$file_size" >&2 ; \
1276                         exit 1; \
1277                 fi; \
1278         fi
1279
1280 ifeq ($(CONFIG_INIT_SP_RELATIVE)$(CONFIG_OF_SEPARATE),yy)
1281 ifneq ($(CONFIG_SYS_MALLOC_F_LEN),)
1282 subtract_sys_malloc_f_len = space=$$(($${space} - $(CONFIG_SYS_MALLOC_F_LEN)))
1283 else
1284 subtract_sys_malloc_f_len = true
1285 endif
1286 # The 1/4 margin below is somewhat arbitrary. The likely initial SP usage is
1287 # so low that the DTB could probably use 90%+ of the available space, for
1288 # current values of CONFIG_SYS_INIT_SP_BSS_OFFSET at least. However, let's be
1289 # safe for now and tweak this later if space becomes tight.
1290 # A rejected alternative would be to check that some absolute minimum stack
1291 # space was available. However, since CONFIG_SYS_INIT_SP_BSS_OFFSET is
1292 # deliberately build-specific, to take account of build-to-build stack usage
1293 # differences due to different feature sets, there is no common absolute value
1294 # to check against.
1295 init_sp_bss_offset_check: u-boot.dtb FORCE
1296         @dtb_size=$(shell wc -c u-boot.dtb | awk '{print $$1}') ; \
1297         space=$(CONFIG_SYS_INIT_SP_BSS_OFFSET) ; \
1298         $(subtract_sys_malloc_f_len) ; \
1299         quarter_space=$$(($${space} / 4)) ; \
1300         if [ $${dtb_size} -gt $${quarter_space} ]; then \
1301                 echo "u-boot.dtb is larger than 1 quarter of " >&2 ; \
1302                 echo "(CONFIG_SYS_INIT_SP_BSS_OFFSET - CONFIG_SYS_MALLOC_F_LEN)" >&2 ; \
1303                 exit 1 ; \
1304         fi
1305 endif
1306
1307 shell_cmd = { $(call echo-cmd,$(1)) $(cmd_$(1)); }
1308
1309 quiet_cmd_objcopy_uboot = OBJCOPY $@
1310 ifdef cmd_static_rela
1311 cmd_objcopy_uboot = $(cmd_objcopy) && $(call shell_cmd,static_rela,$<,$@,$(CONFIG_TEXT_BASE)) || { rm -f $@; false; }
1312 else
1313 cmd_objcopy_uboot = $(cmd_objcopy)
1314 endif
1315
1316 u-boot-nodtb.bin: u-boot FORCE
1317         $(call if_changed,objcopy_uboot)
1318         $(BOARD_SIZE_CHECK)
1319
1320 u-boot.ldr:     u-boot
1321                 $(CREATE_LDR_ENV)
1322                 $(LDR) -T $(CONFIG_CPU) -c $@ $< $(LDR_FLAGS)
1323                 $(BOARD_SIZE_CHECK)
1324
1325 # binman
1326 # ---------------------------------------------------------------------------
1327 # Use 'make BINMAN_DEBUG=1' to enable debugging
1328 # Use 'make BINMAN_VERBOSE=3' to set vebosity level
1329 default_dt := $(if $(DEVICE_TREE),$(DEVICE_TREE),$(CONFIG_DEFAULT_DEVICE_TREE))
1330
1331 quiet_cmd_binman = BINMAN  $@
1332 cmd_binman = $(srctree)/tools/binman/binman $(if $(BINMAN_DEBUG),-D) \
1333                 $(foreach f,$(BINMAN_TOOLPATHS),--toolpath $(f)) \
1334                 --toolpath $(objtree)/tools \
1335                 $(if $(BINMAN_VERBOSE),-v$(BINMAN_VERBOSE)) \
1336                 build -u -d u-boot.dtb -O . -m \
1337                 --allow-missing $(if $(BINMAN_ALLOW_MISSING),--ignore-missing) \
1338                 -I . -I $(srctree) -I $(srctree)/board/$(BOARDDIR) \
1339                 -I arch/$(ARCH)/dts -a of-list=$(CONFIG_OF_LIST) \
1340                 $(foreach f,$(BINMAN_INDIRS),-I $(f)) \
1341                 -a atf-bl31-path=${BL31} \
1342                 -a tee-os-path=${TEE} \
1343                 -a opensbi-path=${OPENSBI} \
1344                 -a default-dt=$(default_dt) \
1345                 -a scp-path=$(SCP) \
1346                 -a rockchip-tpl-path=$(ROCKCHIP_TPL) \
1347                 -a spl-bss-pad=$(if $(CONFIG_SPL_SEPARATE_BSS),,1) \
1348                 -a tpl-bss-pad=$(if $(CONFIG_TPL_SEPARATE_BSS),,1) \
1349                 -a spl-dtb=$(CONFIG_SPL_OF_REAL) \
1350                 -a tpl-dtb=$(CONFIG_TPL_OF_REAL) \
1351                 -a pre-load-key-path=${PRE_LOAD_KEY_PATH} \
1352                 $(BINMAN_$(@F))
1353
1354 OBJCOPYFLAGS_u-boot.ldr.hex := -I binary -O ihex
1355
1356 OBJCOPYFLAGS_u-boot.ldr.srec := -I binary -O srec
1357
1358 u-boot.ldr.hex u-boot.ldr.srec: u-boot.ldr FORCE
1359         $(call if_changed,objcopy)
1360
1361 #
1362 # U-Boot entry point, needed for booting of full-blown U-Boot
1363 # from the SPL U-Boot version.
1364 #
1365 ifndef CFG_SYS_UBOOT_START
1366 CFG_SYS_UBOOT_START := $(CONFIG_TEXT_BASE)
1367 endif
1368
1369 # Boards with more complex image requirements can provide an .its source file
1370 # or a generator script
1371 # NOTE: Please do not use this. We are migrating away from Makefile rules to use
1372 # binman instead.
1373 ifneq ($(CONFIG_SPL_FIT_SOURCE),"")
1374 U_BOOT_ITS := u-boot.its
1375 $(U_BOOT_ITS): $(subst ",,$(CONFIG_SPL_FIT_SOURCE))
1376         $(call if_changed,copy)
1377 else
1378 ifneq ($(CONFIG_USE_SPL_FIT_GENERATOR),)
1379 U_BOOT_ITS := u-boot.its
1380 $(U_BOOT_ITS): $(U_BOOT_ITS_DEPS) FORCE
1381         $(srctree)/$(CONFIG_SPL_FIT_GENERATOR) \
1382         $(patsubst %,arch/$(ARCH)/dts/%.dtb,$(subst ",,$(CONFIG_OF_LIST))) > $@
1383 endif
1384 endif
1385
1386 ifdef CONFIG_SPL_LOAD_FIT
1387 MKIMAGEFLAGS_u-boot.img = -f auto -A $(ARCH) -T firmware -C none -O u-boot \
1388         -a $(CONFIG_TEXT_BASE) -e $(CFG_SYS_UBOOT_START) \
1389         -p $(CONFIG_FIT_EXTERNAL_OFFSET) \
1390         -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board" -E \
1391         $(patsubst %,-b arch/$(ARCH)/dts/%.dtb,$(subst ",,$(DEVICE_TREE))) \
1392         $(patsubst %,-b arch/$(ARCH)/dts/%.dtb,$(subst ",,$(CONFIG_OF_LIST))) \
1393         $(patsubst %,-b arch/$(ARCH)/dts/%.dtbo,$(subst ",,$(CONFIG_OF_OVERLAY_LIST)))
1394 else
1395 MKIMAGEFLAGS_u-boot.img = -A $(ARCH) -T firmware -C none -O u-boot \
1396         -a $(CONFIG_TEXT_BASE) -e $(CFG_SYS_UBOOT_START) \
1397         -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board"
1398 MKIMAGEFLAGS_u-boot-ivt.img = -A $(ARCH) -T firmware_ivt -C none -O u-boot \
1399         -a $(CONFIG_TEXT_BASE) -e $(CFG_SYS_UBOOT_START) \
1400         -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board"
1401 u-boot-ivt.img: MKIMAGEOUTPUT = u-boot-ivt.img.log
1402 endif
1403
1404 MKIMAGEFLAGS_u-boot-dtb.img = $(MKIMAGEFLAGS_u-boot.img)
1405
1406 # Some boards have the kwbimage.cfg file written in advance, while some
1407 # other boards generate it on the fly during the build in the build tree.
1408 # Let's check if the file exists in the build tree first, otherwise we
1409 # fall back to use the one in the source tree.
1410 KWD_CONFIG_FILE = $(shell \
1411         if [ -f $(objtree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%) ]; then \
1412                 echo -n $(objtree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%); \
1413         else \
1414                 echo -n $(srctree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%); \
1415         fi)
1416
1417 MKIMAGEFLAGS_u-boot.kwb = -n $(KWD_CONFIG_FILE) \
1418         -T kwbimage -a $(CONFIG_TEXT_BASE) -e $(CONFIG_TEXT_BASE)
1419
1420 MKIMAGEFLAGS_u-boot-with-spl.kwb = -n $(KWD_CONFIG_FILE) \
1421         -T kwbimage -a $(CONFIG_TEXT_BASE) -e $(CONFIG_TEXT_BASE) \
1422         $(if $(KEYDIR),-k $(KEYDIR))
1423
1424 MKIMAGEFLAGS_u-boot.pbl = -n $(srctree)/$(CONFIG_SYS_FSL_PBL_RCW:"%"=%) \
1425                 -R $(srctree)/$(CONFIG_SYS_FSL_PBL_PBI:"%"=%) -A $(ARCH) -T pblimage
1426
1427 UBOOT_BIN := u-boot.bin
1428
1429 MKIMAGEFLAGS_u-boot-lzma.img = -A $(ARCH) -T standalone -C lzma -O u-boot \
1430         -a $(CONFIG_TEXT_BASE) -e $(CFG_SYS_UBOOT_START) \
1431         -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board"
1432
1433 u-boot.bin.lzma: u-boot.bin FORCE
1434         $(call if_changed,lzma)
1435
1436 u-boot-lzma.img: u-boot.bin.lzma FORCE
1437         $(call if_changed,mkimage)
1438
1439 u-boot-dtb.img u-boot.img u-boot.kwb u-boot.pbl u-boot-ivt.img: \
1440                 $(if $(CONFIG_SPL_LOAD_FIT),u-boot-nodtb.bin \
1441                         $(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_SANDBOX),dts/dt.dtb) \
1442                 ,$(UBOOT_BIN)) FORCE
1443         $(call if_changed,mkimage)
1444         $(BOARD_SIZE_CHECK)
1445
1446 ifeq ($(CONFIG_SPL_LOAD_FIT_FULL),y)
1447 MKIMAGEFLAGS_u-boot.itb =
1448 else
1449 MKIMAGEFLAGS_u-boot.itb = -E
1450 endif
1451 MKIMAGEFLAGS_u-boot.itb += -B 0x8
1452
1453 ifdef U_BOOT_ITS
1454 u-boot.itb: u-boot-nodtb.bin \
1455                 $(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_SANDBOX),dts/dt.dtb) \
1456                 $(if $(CONFIG_MULTI_DTB_FIT),$(FINAL_DTB_CONTAINER)) \
1457                 $(U_BOOT_ITS) FORCE
1458         $(call if_changed,mkfitimage)
1459         $(BOARD_SIZE_CHECK)
1460 endif
1461
1462 u-boot-with-spl.kwb: u-boot.bin spl/u-boot-spl.bin FORCE
1463         $(call if_changed,mkimage)
1464         $(BOARD_SIZE_CHECK)
1465
1466 u-boot.dis:     u-boot
1467                 $(OBJDUMP) -d $< > $@
1468
1469 ifneq ($(CONFIG_SPL_PAYLOAD),)
1470 SPL_PAYLOAD := $(CONFIG_SPL_PAYLOAD:"%"=%)
1471 else
1472 SPL_PAYLOAD := u-boot.bin
1473 endif
1474
1475 SPL_IMAGE := $(CONFIG_SPL_IMAGE:"%"=%)
1476
1477 OBJCOPYFLAGS_u-boot-with-spl.bin = -I binary -O binary \
1478                                    --pad-to=$(CONFIG_SPL_PAD_TO)
1479 u-boot-with-spl.bin: $(SPL_IMAGE) $(SPL_PAYLOAD) FORCE
1480         $(call if_changed,pad_cat)
1481
1482 ifeq ($(CONFIG_ARCH_LPC32XX)$(CONFIG_SPL),yy)
1483 MKIMAGEFLAGS_lpc32xx-spl.img = -T lpc32xximage -a $(CONFIG_SPL_TEXT_BASE)
1484
1485 lpc32xx-spl.img: spl/u-boot-spl.bin FORCE
1486         $(call if_changed,mkimage)
1487
1488 OBJCOPYFLAGS_lpc32xx-boot-0.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO)
1489
1490 lpc32xx-boot-0.bin: lpc32xx-spl.img FORCE
1491         $(call if_changed,objcopy)
1492
1493 OBJCOPYFLAGS_lpc32xx-boot-1.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO)
1494
1495 lpc32xx-boot-1.bin: lpc32xx-spl.img FORCE
1496         $(call if_changed,objcopy)
1497
1498 lpc32xx-full.bin: lpc32xx-boot-0.bin lpc32xx-boot-1.bin u-boot.img FORCE
1499         $(call if_changed,cat)
1500
1501 endif
1502
1503 OBJCOPYFLAGS_u-boot-with-tpl.bin = -I binary -O binary \
1504                                    --pad-to=$(CONFIG_TPL_PAD_TO)
1505 tpl/u-boot-with-tpl.bin: tpl/u-boot-tpl.bin u-boot.bin FORCE
1506         $(call if_changed,pad_cat)
1507
1508 SPL: spl/u-boot-spl.bin FORCE
1509         $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@
1510
1511 #ifeq ($(CONFIG_ARCH_IMX8M)$(CONFIG_ARCH_IMX8), y)
1512 ifeq ($(CONFIG_SPL_LOAD_IMX_CONTAINER), y)
1513 u-boot.cnt: u-boot.bin FORCE
1514         $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@
1515
1516 flash.bin: spl/u-boot-spl.bin u-boot.cnt FORCE
1517         $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@
1518 else
1519 ifeq ($(CONFIG_BINMAN),y)
1520 flash.bin: spl/u-boot-spl.bin $(INPUTS-y) FORCE
1521         $(call if_changed,binman)
1522 else
1523 flash.bin: spl/u-boot-spl.bin u-boot.itb FORCE
1524         $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@
1525 endif
1526 endif
1527 #endif
1528
1529 u-boot.uim: u-boot.bin FORCE
1530         $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@
1531
1532 u-boot-nand.imx: u-boot.imx FORCE
1533         $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@
1534
1535 u-boot-with-spl.imx u-boot-with-nand-spl.imx: SPL $(if $(CONFIG_OF_SEPARATE),u-boot.img,u-boot.uim) FORCE
1536         $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@
1537
1538 MKIMAGEFLAGS_u-boot.ubl = -n $(UBL_CONFIG) -T ublimage -e $(CONFIG_TEXT_BASE)
1539
1540 u-boot.ubl: u-boot-with-spl.bin FORCE
1541         $(call if_changed,mkimage)
1542
1543 MKIMAGEFLAGS_u-boot-spl.ais = -s -n "/dev/null" \
1544         -T aisimage -e $(CONFIG_SPL_TEXT_BASE)
1545 spl/u-boot-spl.ais: spl/u-boot-spl.bin FORCE
1546         $(call if_changed,mkimage)
1547
1548 OBJCOPYFLAGS_u-boot.ais = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO)
1549 u-boot.ais: spl/u-boot-spl.ais u-boot.img FORCE
1550         $(call if_changed,pad_cat)
1551
1552 u-boot-signed.sb: u-boot.bin spl/u-boot-spl.bin
1553         $(Q)$(MAKE) $(build)=arch/arm/cpu/arm926ejs/mxs u-boot-signed.sb
1554 u-boot.sb: u-boot.bin spl/u-boot-spl.bin
1555         $(Q)$(MAKE) $(build)=arch/arm/cpu/arm926ejs/mxs u-boot.sb
1556
1557 MKIMAGEFLAGS_u-boot-spl.img = -A $(ARCH) -T firmware -C none \
1558         -a $(CONFIG_SPL_TEXT_BASE) -e $(CONFIG_SPL_TEXT_BASE) -n XLOADER
1559 spl/u-boot-spl.img: spl/u-boot-spl.bin FORCE
1560         $(call if_changed,mkimage)
1561
1562 ifneq ($(CONFIG_ARCH_SOCFPGA),)
1563 quiet_cmd_gensplx4 = GENSPLX4 $@
1564 cmd_gensplx4 = $(OBJCOPY) -I binary -O binary --gap-fill=0x0            \
1565                         --pad-to=$(CONFIG_SPL_PAD_TO)                   \
1566                         spl/u-boot-spl.sfp spl/u-boot-spl.sfp &&        \
1567                 cat     spl/u-boot-spl.sfp spl/u-boot-spl.sfp           \
1568                         spl/u-boot-spl.sfp spl/u-boot-spl.sfp > $@ || { rm -f $@; false; }
1569 spl/u-boot-splx4.sfp: spl/u-boot-spl.sfp FORCE
1570         $(call if_changed,gensplx4)
1571
1572 quiet_cmd_socboot = SOCBOOT $@
1573 cmd_socboot = cat       spl/u-boot-splx4.sfp u-boot.img > $@ || { rm -f $@; false; }
1574 u-boot-with-spl.sfp: spl/u-boot-splx4.sfp u-boot.img FORCE
1575         $(call if_changed,socboot)
1576
1577 quiet_cmd_gensplpadx4 = GENSPLPADX4 $@
1578 cmd_gensplpadx4 =  dd if=/dev/zero of=spl/u-boot-spl.pad bs=64 count=1024 ; \
1579                    cat  spl/u-boot-spl.sfp spl/u-boot-spl.pad \
1580                         spl/u-boot-spl.sfp spl/u-boot-spl.pad \
1581                         spl/u-boot-spl.sfp spl/u-boot-spl.pad \
1582                         spl/u-boot-spl.sfp spl/u-boot-spl.pad > $@ || \
1583                         { rm -f $@ spl/u-boot-spl.pad; false; }
1584 u-boot-spl-padx4.sfp: spl/u-boot-spl.sfp FORCE
1585         $(call if_changed,gensplpadx4)
1586
1587 quiet_cmd_socnandboot = SOCNANDBOOT $@
1588 cmd_socnandboot = cat   u-boot-spl-padx4.sfp u-boot.img > $@ || { rm -f $@; false; }
1589 u-boot-with-nand-spl.sfp: u-boot-spl-padx4.sfp u-boot.img FORCE
1590         $(call if_changed,socnandboot)
1591
1592 endif
1593
1594 ifeq ($(CONFIG_MPC85XX_HAVE_RESET_VECTOR)$(CONFIG_OF_SEPARATE),yy)
1595 u-boot-dtb.bin: u-boot-nodtb.bin u-boot.dtb u-boot-br.bin FORCE
1596         $(call if_changed,binman)
1597
1598 OBJCOPYFLAGS_u-boot-br.bin := -O binary -j .bootpg -j .resetvec
1599 u-boot-br.bin: u-boot FORCE
1600         $(call if_changed,objcopy)
1601 endif
1602
1603 quiet_cmd_ldr = LD      $@
1604 cmd_ldr = $(LD) $(LDFLAGS_$(@F)) \
1605                $(filter-out FORCE,$^) -o $@
1606
1607 ifdef CONFIG_X86
1608 OBJCOPYFLAGS_u-boot-x86-start16.bin := -O binary -j .start16
1609 u-boot-x86-start16.bin: u-boot FORCE
1610         $(call if_changed,objcopy)
1611
1612 OBJCOPYFLAGS_u-boot-x86-reset16.bin := -O binary -j .resetvec
1613 u-boot-x86-reset16.bin: u-boot FORCE
1614         $(call if_changed,objcopy)
1615
1616 endif # CONFIG_X86
1617
1618 OBJCOPYFLAGS_u-boot-app.efi := $(OBJCOPYFLAGS_EFI)
1619 u-boot-app.efi: u-boot FORCE
1620         $(call if_changed,zobjcopy)
1621
1622 u-boot.bin.o: u-boot.bin FORCE
1623         $(call if_changed,efipayload)
1624
1625 u-boot-payload.lds: $(LDSCRIPT_EFI) FORCE
1626         $(call if_changed_dep,cpp_lds)
1627
1628 # Rule to link the EFI payload which contains a stub and a U-Boot binary
1629 quiet_cmd_u-boot_payload ?= LD      $@
1630       cmd_u-boot_payload ?= $(LD) $(LDFLAGS_EFI_PAYLOAD) -o $@ \
1631       -T u-boot-payload.lds arch/x86/cpu/call32.o \
1632       lib/efi/efi.o lib/efi/efi_stub.o u-boot.bin.o \
1633       $(addprefix arch/$(ARCH)/lib/,$(EFISTUB))
1634
1635 u-boot-payload: u-boot.bin.o u-boot-payload.lds FORCE
1636         $(call if_changed,u-boot_payload)
1637
1638 OBJCOPYFLAGS_u-boot-payload.efi := $(OBJCOPYFLAGS_EFI)
1639 u-boot-payload.efi: u-boot-payload FORCE
1640         $(call if_changed,zobjcopy)
1641
1642 u-boot-img.bin: spl/u-boot-spl.bin u-boot.img FORCE
1643         $(call if_changed,cat)
1644
1645 #Add a target to create boot binary having SPL binary in PBI format
1646 #concatenated with u-boot binary. It is need by PowerPC SoC having
1647 #internal SRAM <= 512KB.
1648 MKIMAGEFLAGS_u-boot-spl.pbl = -n $(srctree)/$(CONFIG_SYS_FSL_PBL_RCW:"%"=%) \
1649                 -R $(srctree)/$(CONFIG_SYS_FSL_PBL_PBI:"%"=%) -T pblimage \
1650                 -A $(ARCH) -a $(CONFIG_SPL_TEXT_BASE)
1651
1652 spl/u-boot-spl.pbl: spl/u-boot-spl.bin FORCE
1653         $(call if_changed,mkimage)
1654
1655 ifeq ($(ARCH),arm)
1656 UBOOT_BINLOAD := u-boot.img
1657 else
1658 UBOOT_BINLOAD := u-boot.bin
1659 endif
1660
1661 OBJCOPYFLAGS_u-boot-with-spl-pbl.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) \
1662                           --gap-fill=0xff
1663
1664 u-boot-with-spl-pbl.bin: spl/u-boot-spl.pbl $(UBOOT_BINLOAD) FORCE
1665         $(call if_changed,pad_cat)
1666
1667 quiet_cmd_u-boot-elf ?= LD      $@
1668         cmd_u-boot-elf ?= $(LD) u-boot-elf.o -o $@ \
1669         $(if $(CONFIG_SYS_BIG_ENDIAN),-EB,-EL) \
1670         -T u-boot-elf.lds --defsym=$(CONFIG_PLATFORM_ELFENTRY)=$(CONFIG_TEXT_BASE) \
1671         -Ttext=$(CONFIG_TEXT_BASE)
1672 u-boot.elf: u-boot.bin u-boot-elf.lds
1673         $(Q)$(OBJCOPY) -I binary $(PLATFORM_ELFFLAGS) $< u-boot-elf.o
1674         $(call if_changed,u-boot-elf)
1675
1676 u-boot-elf.lds: arch/u-boot-elf.lds prepare FORCE
1677         $(call if_changed_dep,cpp_lds)
1678
1679 # MediaTek's ARM-based u-boot needs a header to contains its load address
1680 # which is parsed by the BootROM.
1681 # If the SPL build is enabled, the header will be added to the spl binary,
1682 # and the spl binary and the u-boot.img will be combined into one file.
1683 # Otherwise the header will be added to the u-boot.bin directly.
1684
1685 ifeq ($(CONFIG_SPL),y)
1686 spl/u-boot-spl-mtk.bin: spl/u-boot-spl
1687
1688 u-boot-mtk.bin: u-boot-with-spl.bin
1689         $(call if_changed,copy)
1690 else
1691 MKIMAGEFLAGS_u-boot-mtk.bin = -T mtk_image \
1692         -a $(CONFIG_TEXT_BASE) -e $(CONFIG_TEXT_BASE) \
1693         -n "$(patsubst "%",%,$(CONFIG_MTK_BROM_HEADER_INFO))"
1694
1695 u-boot-mtk.bin: u-boot.bin FORCE
1696         $(call if_changed,mkimage)
1697 endif
1698
1699 quiet_cmd_endian_swap = SWAP    $@
1700       cmd_endian_swap = $(srctree)/tools/endian-swap.py $< $@
1701
1702 u-boot-swap.bin: u-boot.bin FORCE
1703         $(call if_changed,endian_swap)
1704
1705 ARCH_POSTLINK := $(wildcard $(srctree)/arch/$(ARCH)/Makefile.postlink)
1706
1707 # Generate linker list symbols references to force compiler to not optimize
1708 # them away when compiling with LTO
1709 ifeq ($(LTO_ENABLE),y)
1710 u-boot-keep-syms-lto := keep-syms-lto.o
1711 u-boot-keep-syms-lto_c := $(patsubst %.o,%.c,$(u-boot-keep-syms-lto))
1712
1713 quiet_cmd_keep_syms_lto = KSL     $@
1714       cmd_keep_syms_lto = \
1715         $(srctree)/scripts/gen_ll_addressable_symbols.sh $(NM) $^ > $@
1716
1717 quiet_cmd_keep_syms_lto_cc = KSLCC   $@
1718       cmd_keep_syms_lto_cc = \
1719         $(CC) $(filter-out $(LTO_CFLAGS),$(c_flags)) -c -o $@ $<
1720
1721 $(u-boot-keep-syms-lto_c): $(u-boot-main)
1722         $(call if_changed,keep_syms_lto)
1723 $(u-boot-keep-syms-lto): $(u-boot-keep-syms-lto_c)
1724         $(call if_changed,keep_syms_lto_cc)
1725 else
1726 u-boot-keep-syms-lto :=
1727 endif
1728
1729 # Rule to link u-boot
1730 # May be overridden by arch/$(ARCH)/config.mk
1731 ifeq ($(LTO_ENABLE),y)
1732 quiet_cmd_u-boot__ ?= LTO     $@
1733       cmd_u-boot__ ?=                                                           \
1734                 $(CC) -nostdlib -nostartfiles                                   \
1735                 $(LTO_FINAL_LDFLAGS) $(c_flags)                                 \
1736                 $(KBUILD_LDFLAGS:%=-Wl,%) $(LDFLAGS_u-boot:%=-Wl,%) -o $@       \
1737                 -T u-boot.lds $(u-boot-init)                                    \
1738                 -Wl,--whole-archive                                             \
1739                         $(u-boot-main)                                          \
1740                         $(u-boot-keep-syms-lto)                                 \
1741                         $(PLATFORM_LIBS)                                        \
1742                 -Wl,--no-whole-archive                                          \
1743                 -Wl,-Map,u-boot.map;                                            \
1744                 $(if $(ARCH_POSTLINK), $(MAKE) -f $(ARCH_POSTLINK) $@, true)
1745 else
1746 quiet_cmd_u-boot__ ?= LD      $@
1747       cmd_u-boot__ ?= $(LD) $(KBUILD_LDFLAGS) $(LDFLAGS_u-boot) -o $@           \
1748                 -T u-boot.lds $(u-boot-init)                                    \
1749                 --whole-archive                                                 \
1750                         $(u-boot-main)                                          \
1751                 --no-whole-archive                                              \
1752                 $(PLATFORM_LIBS) -Map u-boot.map;                               \
1753                 $(if $(ARCH_POSTLINK), $(MAKE) -f $(ARCH_POSTLINK) $@, true)
1754 endif
1755
1756 quiet_cmd_smap = GEN     common/system_map.o
1757 cmd_smap = \
1758         smap=`$(call SYSTEM_MAP,u-boot) | \
1759                 awk '$$2 ~ /[tTwW]/ {printf $$1 $$3 "\\\\000"}'` ; \
1760         $(CC) $(c_flags) -DSYSTEM_MAP="\"$${smap}\"" \
1761                 -c $(srctree)/common/system_map.c -o common/system_map.o
1762
1763 u-boot: $(u-boot-init) $(u-boot-main) $(u-boot-keep-syms-lto) u-boot.lds FORCE
1764         +$(call if_changed,u-boot__)
1765 ifeq ($(CONFIG_KALLSYMS),y)
1766         $(call cmd,smap)
1767         $(call cmd,u-boot__) common/system_map.o
1768 endif
1769
1770 ifeq ($(CONFIG_RISCV),y)
1771         @tools/prelink-riscv $@
1772 endif
1773
1774 quiet_cmd_sym ?= SYM     $@
1775       cmd_sym ?= $(OBJDUMP) -t $< > $@
1776 u-boot.sym: u-boot FORCE
1777         $(call if_changed,sym)
1778
1779 # Environment processing
1780 # ---------------------------------------------------------------------------
1781
1782 # Directory where we expect the .env file, if it exists
1783 ENV_DIR := $(srctree)/board/$(BOARDDIR)
1784
1785 # Basename of .env file, stripping quotes
1786 ENV_SOURCE_FILE := $(CONFIG_ENV_SOURCE_FILE:"%"=%)
1787
1788 # Filename of .env file
1789 ENV_FILE_CFG := $(ENV_DIR)/$(ENV_SOURCE_FILE).env
1790
1791 # Default filename, if CONFIG_ENV_SOURCE_FILE is empty
1792 ENV_FILE_BOARD := $(ENV_DIR)/$(CONFIG_SYS_BOARD:"%"=%).env
1793
1794 # Select between the CONFIG_ENV_SOURCE_FILE and the default one
1795 ENV_FILE := $(if $(ENV_SOURCE_FILE),$(ENV_FILE_CFG),$(wildcard $(ENV_FILE_BOARD)))
1796
1797 # Run the environment text file through the preprocessor, but only if it is
1798 # non-empty, to save time and possible build errors if something is wonky with
1799 # the board.
1800 # If there is no ENV_FILE, produce an empty output file, to prevent a previous
1801 # build's file being used in the case of in-tree builds.
1802 quiet_cmd_gen_envp = ENVP    $@
1803       cmd_gen_envp = \
1804         if [ -s "$(ENV_FILE)" ]; then \
1805                 $(CPP) -P $(CFLAGS) -x assembler-with-cpp -D__ASSEMBLY__ \
1806                         -D__UBOOT_CONFIG__ \
1807                         -I . -I include -I $(srctree)/include \
1808                         -include linux/kconfig.h -include include/config.h \
1809                         -I$(srctree)/arch/$(ARCH)/include \
1810                         $< -o $@; \
1811         else \
1812                 rm -f $@; \
1813                 touch $@ ; \
1814         fi
1815 include/generated/env.in: include/generated/env.txt
1816         $(call cmd,gen_envp)
1817
1818 # Regenerate the environment if it changes
1819 # We use 'wildcard' since the file is not required to exist (at present), in
1820 # which case we don't want this dependency, but instead should create an empty
1821 # file
1822 # This rule is useful since it shows the source file for the environment
1823 quiet_cmd_envc = ENVC    $@
1824       cmd_envc = \
1825         if [ -f "$<" ]; then \
1826                 cat $< > $@; \
1827         elif [ -n "$(ENV_SOURCE_FILE)" ]; then \
1828                 echo "Missing file $(ENV_FILE_CFG)"; \
1829         else \
1830                 touch $@ ; \
1831         fi
1832
1833 include/generated/env.txt: $(wildcard $(ENV_FILE))
1834         $(call cmd,envc)
1835
1836 # Write out the resulting environment, converted to a C string
1837 quiet_cmd_gen_envt = ENVT    $@
1838       cmd_gen_envt = \
1839         awk -f $(srctree)/scripts/env2string.awk $< >$@
1840 $(env_h): include/generated/env.in
1841         $(call cmd,gen_envt)
1842
1843 # ---------------------------------------------------------------------------
1844
1845 # The actual objects are generated when descending,
1846 # make sure no implicit rule kicks in
1847 $(sort $(u-boot-init) $(u-boot-main)): $(u-boot-dirs) ;
1848
1849 # Handle descending into subdirectories listed in $(u-boot-dirs)
1850 # Preset locale variables to speed up the build process. Limit locale
1851 # tweaks to this spot to avoid wrong language settings when running
1852 # make menuconfig etc.
1853 # Error messages still appears in the original language
1854
1855 PHONY += $(u-boot-dirs)
1856 $(u-boot-dirs): prepare scripts
1857         $(Q)$(MAKE) $(build)=$@
1858
1859 tools: prepare
1860 # The "tools" are needed early
1861 $(filter-out tools, $(u-boot-dirs)): tools
1862 # The "examples" conditionally depend on U-Boot (say, when USE_PRIVATE_LIBGCC
1863 # is "yes"), so compile examples after U-Boot is compiled.
1864 examples: $(filter-out examples, $(u-boot-dirs))
1865
1866 define filechk_uboot.release
1867         echo "$(UBOOTVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))"
1868 endef
1869
1870 # Store (new) UBOOTRELEASE string in include/config/uboot.release
1871 include/config/uboot.release: include/config/auto.conf FORCE
1872         $(call filechk,uboot.release)
1873
1874
1875 # Things we need to do before we recursively start building the kernel
1876 # or the modules are listed in "prepare".
1877 # A multi level approach is used. prepareN is processed before prepareN-1.
1878 # archprepare is used in arch Makefiles and when processed asm symlink,
1879 # version.h and scripts_basic is processed / created.
1880
1881 # Listed in dependency order
1882 PHONY += prepare archprepare prepare0 prepare1 prepare2 prepare3
1883
1884 # prepare3 is used to check if we are building in a separate output directory,
1885 # and if so do:
1886 # 1) Check that make has not been executed in the kernel src $(srctree)
1887 prepare3: include/config/uboot.release
1888 ifneq ($(KBUILD_SRC),)
1889         @$(kecho) '  Using $(srctree) as source for U-Boot'
1890         $(Q)if [ -f $(srctree)/.config -o -d $(srctree)/include/config ]; then \
1891                 echo >&2 "  $(srctree) is not clean, please run 'make mrproper'"; \
1892                 echo >&2 "  in the '$(srctree)' directory.";\
1893                 /bin/false; \
1894         fi;
1895 endif
1896
1897 # prepare2 creates a makefile if using a separate output directory
1898 prepare2: prepare3 outputmakefile cfg
1899
1900 prepare1: prepare2 $(version_h) $(timestamp_h) $(dt_h) $(env_h) \
1901                    include/config/auto.conf
1902 ifeq ($(wildcard $(LDSCRIPT)),)
1903         @echo >&2 "  Could not find linker script."
1904         @/bin/false
1905 endif
1906
1907 ifeq ($(CONFIG_USE_DEFAULT_ENV_FILE),y)
1908 prepare1: $(defaultenv_h)
1909
1910 envtools: $(defaultenv_h)
1911 endif
1912
1913 archprepare: prepare1 scripts_basic
1914
1915 prepare0: archprepare FORCE
1916         $(Q)$(MAKE) $(build)=.
1917
1918 # All the preparing..
1919 prepare: prepare0
1920
1921 # Generate some files
1922 # ---------------------------------------------------------------------------
1923
1924 # Use sed to remove leading zeros from PATCHLEVEL to avoid using octal numbers
1925 define filechk_version.h
1926         (echo \#define PLAIN_VERSION \"$(UBOOTRELEASE)\"; \
1927         echo \#define U_BOOT_VERSION \"U-Boot \" PLAIN_VERSION; \
1928         echo \#define U_BOOT_VERSION_NUM $(VERSION); \
1929         echo \#define U_BOOT_VERSION_NUM_PATCH $$(echo $(PATCHLEVEL) | \
1930                 sed -e "s/^0*//"); \
1931         echo \#define CC_VERSION_STRING \"$$(LC_ALL=C $(CC) --version | head -n 1)\"; \
1932         echo \#define LD_VERSION_STRING \"$$(LC_ALL=C $(LD) --version | head -n 1)\"; )
1933 endef
1934
1935 # The SOURCE_DATE_EPOCH mechanism requires a date that behaves like GNU date.
1936 # The BSD date on the other hand behaves different and would produce errors
1937 # with the misused '-d' switch.  Respect that and search a working date with
1938 # well known pre- and suffixes for the GNU variant of date.
1939 define filechk_timestamp.h
1940         (if test -n "$${SOURCE_DATE_EPOCH}"; then \
1941                 SOURCE_DATE="@$${SOURCE_DATE_EPOCH}"; \
1942                 DATE=""; \
1943                 for date in gdate date.gnu date; do \
1944                         $${date} -u -d "$${SOURCE_DATE}" >/dev/null 2>&1 && DATE="$${date}"; \
1945                 done; \
1946                 if test -n "$${DATE}"; then \
1947                         LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_DATE "%b %d %C%y"'; \
1948                         LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_TIME "%T"'; \
1949                         LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_TZ "%z"'; \
1950                         LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_EPOCH %s'; \
1951                 else \
1952                         return 42; \
1953                 fi; \
1954         else \
1955                 LC_ALL=C date +'#define U_BOOT_DATE "%b %d %C%y"'; \
1956                 LC_ALL=C date +'#define U_BOOT_TIME "%T"'; \
1957                 LC_ALL=C date +'#define U_BOOT_TZ "%z"'; \
1958                 LC_ALL=C date +'#define U_BOOT_EPOCH %s'; \
1959         fi)
1960 endef
1961
1962 define filechk_defaultenv.h
1963         ( { grep -v '^#' | grep -v '^$$' || true ; echo '' ; } | \
1964          tr '\n' '\0' | \
1965          sed -e 's/\\\x0\s*//g' | \
1966          xxd -i ; )
1967 endef
1968
1969 define filechk_dt.h
1970         (if test -n "$${DEVICE_TREE}"; then \
1971                 echo \#define DEVICE_TREE \"$(DEVICE_TREE)\"; \
1972         else \
1973                 echo \#define DEVICE_TREE CONFIG_DEFAULT_DEVICE_TREE; \
1974         fi)
1975 endef
1976
1977 $(version_h): include/config/uboot.release FORCE
1978         $(call filechk,version.h)
1979
1980 $(timestamp_h): $(srctree)/Makefile FORCE
1981         $(call filechk,timestamp.h)
1982
1983 $(dt_h): $(srctree)/Makefile FORCE
1984         $(call filechk,dt.h)
1985
1986 $(defaultenv_h): $(CONFIG_DEFAULT_ENV_FILE:"%"=%) FORCE
1987         $(call filechk,defaultenv.h)
1988
1989 # ---------------------------------------------------------------------------
1990 # Devicetree files
1991
1992 ifneq ($(wildcard $(srctree)/arch/$(SRCARCH)/boot/dts/),)
1993 dtstree := arch/$(SRCARCH)/boot/dts
1994 endif
1995
1996 ifneq ($(dtstree),)
1997
1998 %.dtb: prepare3 scripts_dtc
1999         $(Q)$(MAKE) $(build)=$(dtstree) $(dtstree)/$@
2000
2001 PHONY += dtbs dtbs_install
2002 dtbs: prepare3 scripts_dtc
2003         $(Q)$(MAKE) $(build)=$(dtstree)
2004
2005 dtbs_install:
2006         $(Q)$(MAKE) $(dtbinst)=$(dtstree)
2007
2008 endif
2009
2010 # Check dtc and pylibfdt, if DTC is provided, else build them
2011 PHONY += scripts_dtc
2012 scripts_dtc: scripts_basic
2013         $(Q)if test "$(DTC)" = "$(DTC_INTREE)"; then \
2014                 $(MAKE) $(build)=scripts/dtc; \
2015         else \
2016                 if ! $(DTC) -v >/dev/null; then \
2017                         echo '*** Failed to check dtc version: $(DTC)'; \
2018                         false; \
2019                 else \
2020                         if test "$(call dtc-version)" -lt $(DTC_MIN_VERSION); then \
2021                                 echo '*** Your dtc is too old, please upgrade to dtc $(DTC_MIN_VERSION) or newer'; \
2022                                 false; \
2023                         else \
2024                                 if [ -n "$(CONFIG_PYLIBFDT)" ]; then \
2025                                         if ! echo "import libfdt" | $(PYTHON3) 2>/dev/null; then \
2026                                                 echo '*** pylibfdt does not seem to be available with $(PYTHON3)'; \
2027                                                 false; \
2028                                         fi; \
2029                                 fi; \
2030                         fi; \
2031                 fi; \
2032         fi
2033
2034 # ---------------------------------------------------------------------------
2035 quiet_cmd_cpp_lds = LDS     $@
2036 cmd_cpp_lds = $(CPP) -Wp,-MD,$(depfile) $(cpp_flags) $(LDPPFLAGS) \
2037                 -D__ASSEMBLY__ -x assembler-with-cpp -std=c99 -P -o $@ $<
2038
2039 u-boot.lds: $(LDSCRIPT) prepare FORCE
2040         $(call if_changed_dep,cpp_lds)
2041
2042 spl/u-boot-spl.bin: spl/u-boot-spl
2043         @:
2044         $(SPL_SIZE_CHECK)
2045
2046 spl/u-boot-spl-dtb.bin: spl/u-boot-spl
2047         @:
2048
2049 spl/u-boot-spl-dtb.hex: spl/u-boot-spl
2050         @:
2051
2052 spl/u-boot-spl: tools prepare $(if $(CONFIG_SPL_OF_CONTROL),dts/dt.dtb)
2053         $(Q)$(MAKE) obj=spl -f $(srctree)/scripts/Makefile.spl all
2054
2055 spl/sunxi-spl.bin: spl/u-boot-spl
2056         @:
2057
2058 spl/sunxi-spl-with-ecc.bin: spl/sunxi-spl.bin
2059         @:
2060
2061 spl/u-boot-spl.sfp: spl/u-boot-spl
2062         @:
2063
2064 spl/boot.bin: spl/u-boot-spl
2065         @:
2066
2067 tpl/u-boot-tpl.bin: tpl/u-boot-tpl
2068         @:
2069         $(TPL_SIZE_CHECK)
2070
2071 tpl/u-boot-tpl: tools prepare $(if $(CONFIG_TPL_OF_CONTROL),dts/dt.dtb)
2072         $(Q)$(MAKE) obj=tpl -f $(srctree)/scripts/Makefile.spl all
2073
2074 vpl/u-boot-vpl.bin: vpl/u-boot-vpl
2075         @:
2076         $(VPL_SIZE_CHECK)
2077
2078 vpl/u-boot-vpl: tools prepare $(if $(CONFIG_TPL_OF_CONTROL),dts/dt.dtb)
2079         $(Q)$(MAKE) obj=vpl -f $(srctree)/scripts/Makefile.spl all
2080
2081 TAG_SUBDIRS := $(patsubst %,$(srctree)/%,$(u-boot-dirs) include)
2082
2083 FIND := find
2084 FINDFLAGS := -L
2085
2086 tags ctags:
2087                 ctags -w -o ctags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \
2088                                                 -name '*.[chS]' -print`
2089                 ln -s ctags tags
2090
2091 etags:
2092                 etags -a -o etags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \
2093                                                 -name '*.[chS]' -print`
2094 cscope:
2095                 $(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) -name '*.[chS]' -print > \
2096                                                 cscope.files
2097                 @find $(TAG_SUBDIRS) -name '*.[chS]' -type l -print | \
2098                         grep -xvf - cscope.files > cscope.files.no-symlinks; \
2099                 mv cscope.files.no-symlinks cscope.files
2100                 cscope -b -q -k
2101
2102 SYSTEM_MAP = \
2103                 $(NM) $1 | \
2104                 grep -v '\(compiled\)\|\(\.o$$\)\|\( [aUw] \)\|\(\.\.ng$$\)\|\(LASH[RL]DI\)' | \
2105                 LC_ALL=C sort
2106 System.map:     u-boot
2107                 @$(call SYSTEM_MAP,$<) > $@
2108
2109 #########################################################################
2110
2111 # ARM relocations should all be R_ARM_RELATIVE (32-bit) or
2112 # R_AARCH64_RELATIVE (64-bit).
2113 checkarmreloc: u-boot
2114         @RELOC="`$(CROSS_COMPILE)readelf -r -W $< | cut -d ' ' -f 4 | \
2115                 grep R_A | sort -u`"; \
2116         if test "$$RELOC" != "R_ARM_RELATIVE" -a \
2117                  "$$RELOC" != "R_AARCH64_RELATIVE"; then \
2118                 echo "$< contains unexpected relocations: $$RELOC"; \
2119                 false; \
2120         fi
2121
2122 tools/version.h: include/version.h
2123         $(Q)mkdir -p $(dir $@)
2124         $(call if_changed,copy)
2125
2126 envtools: u-boot-initial-env scripts_basic $(version_h) $(timestamp_h) tools/version.h
2127         $(Q)$(MAKE) $(build)=tools/env
2128
2129 tools-only: export TOOLS_ONLY=y
2130 tools-only: scripts_basic $(version_h) $(timestamp_h) tools/version.h
2131         $(Q)$(MAKE) $(build)=tools
2132
2133 tools-all: export HOST_TOOLS_ALL=y
2134 tools-all: envtools tools ;
2135
2136 cross_tools: export CROSS_BUILD_TOOLS=y
2137 cross_tools: tools ;
2138
2139 .PHONY : CHANGELOG
2140 CHANGELOG:
2141         git log --no-merges U-Boot-1_1_5.. | \
2142         unexpand -a | sed -e 's/\s\s*$$//' > $@
2143
2144 #########################################################################
2145
2146 ###
2147 # Cleaning is done on three levels.
2148 # make clean     Delete most generated files
2149 #                Leave enough to build external modules
2150 # make mrproper  Delete the current configuration, and all generated files
2151 # make distclean Remove editor backup files, patch leftover files and the like
2152
2153 # Directories & files removed with 'make clean'
2154 CLEAN_DIRS  += $(MODVERDIR) \
2155                $(foreach d, spl tpl vpl, $(patsubst %,$d/%, \
2156                         $(filter-out include, $(shell ls -1 $d 2>/dev/null))))
2157
2158 CLEAN_FILES += include/bmp_logo.h include/bmp_logo_data.h \
2159                include/generated/env.* drivers/video/u_boot_logo.S \
2160                tools/version.h u-boot* MLO* SPL System.map fit-dtb.blob* \
2161                u-boot-ivt.img.log u-boot-dtb.imx.log SPL.log u-boot.imx.log \
2162                lpc32xx-* bl31.c bl31.elf bl31_*.bin image.map tispl.bin* \
2163                idbloader.img flash.bin flash.log defconfig keep-syms-lto.c \
2164                mkimage-out.spl.mkimage mkimage.spl.mkimage imx-boot.map \
2165                itb.fit.fit itb.fit.itb itb.map spl.map mkimage-out.rom.mkimage \
2166                mkimage.rom.mkimage rom.map simple-bin.map simple-bin-spi.map \
2167                idbloader-spi.img lib/efi_loader/helloworld_efi.S
2168
2169 # Directories & files removed with 'make mrproper'
2170 MRPROPER_DIRS  += include/config include/generated spl tpl vpl \
2171                   .tmp_objdiff doc/output include/asm
2172
2173 # Remove include/asm symlink created by U-Boot before v2014.01
2174 MRPROPER_FILES += .config .config.old include/autoconf.mk* include/config.h \
2175                   ctags etags tags TAGS cscope* GPATH GTAGS GRTAGS GSYMS \
2176                   drivers/video/fonts/*.S include/asm
2177
2178 # clean - Delete most, but leave enough to build external modules
2179 #
2180 clean: rm-dirs  := $(CLEAN_DIRS)
2181 clean: rm-files := $(CLEAN_FILES)
2182
2183 clean-dirs      := $(foreach f,$(u-boot-alldirs),$(if $(wildcard $(srctree)/$f/Makefile),$f))
2184
2185 clean-dirs      := $(addprefix _clean_, $(clean-dirs))
2186
2187 PHONY += $(clean-dirs) clean archclean
2188 $(clean-dirs):
2189         $(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$@)
2190
2191 clean: $(clean-dirs)
2192         $(call cmd,rmdirs)
2193         $(call cmd,rmfiles)
2194         @find $(if $(KBUILD_EXTMOD), $(KBUILD_EXTMOD), .) $(RCS_FIND_IGNORE) \
2195                 \( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \
2196                 -o -name '*.ko.*' -o -name '*.su' -o -name '*.pyc' \
2197                 -o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \
2198                 -o -name '*.lex.c' -o -name '*.tab.[ch]' \
2199                 -o -name '*.asn1.[ch]' \
2200                 -o -name '*.symtypes' -o -name 'modules.order' \
2201                 -o -name modules.builtin -o -name '.tmp_*.o.*' \
2202                 -o -name 'dsdt_generated.aml' -o -name 'dsdt_generated.asl.tmp' \
2203                 -o -name 'dsdt_generated.c' \
2204                 -o -name '*.efi' -o -name '*.gcno' -o -name '*.so' \) \
2205                 -type f -print | xargs rm -f
2206
2207 # mrproper - Delete all generated files, including .config
2208 #
2209 mrproper: rm-dirs  := $(wildcard $(MRPROPER_DIRS))
2210 mrproper: rm-files := $(wildcard $(MRPROPER_FILES))
2211 mrproper-dirs      := $(addprefix _mrproper_,scripts)
2212
2213 PHONY += $(mrproper-dirs) mrproper archmrproper
2214 $(mrproper-dirs):
2215         $(Q)$(MAKE) $(clean)=$(patsubst _mrproper_%,%,$@)
2216
2217 mrproper: clean $(mrproper-dirs)
2218         $(call cmd,rmdirs)
2219         $(call cmd,rmfiles)
2220         @rm -f arch/*/include/asm/arch
2221
2222 # distclean
2223 #
2224 PHONY += distclean
2225
2226 distclean: mrproper
2227         @find $(srctree) $(RCS_FIND_IGNORE) \
2228                 \( -name '*.orig' -o -name '*.rej' -o -name '*~' \
2229                 -o -name '*.bak' -o -name '#*#' -o -name '.*.orig' \
2230                 -o -name '.*.rej' -o -name '*%' -o -name 'core' \
2231                 -o -name '*.pyc' \) \
2232                 -type f -print | xargs rm -f
2233         @rm -f boards.cfg CHANGELOG
2234
2235 # See doc/develop/python_cq.rst
2236 PHONY += pylint pylint_err
2237 PYLINT_BASE := scripts/pylint.base
2238 PYLINT_CUR := pylint.cur
2239 PYLINT_DIFF := pylint.diff
2240 pylint:
2241         $(Q)echo "Running pylint on all files (summary in $(PYLINT_CUR); output in pylint.out/)"
2242         $(Q)mkdir -p pylint.out
2243         $(Q)rm -f pylint.out/out*
2244         $(Q)find tools test -name "*.py" \
2245                 | xargs -n1 -P$(shell nproc 2>/dev/null || echo 1) \
2246                         sh -c 'pylint --reports=y --exit-zero -f parseable --ignore-imports=yes $$@ > pylint.out/$$(echo $$@ | tr / _ | sed s/.py//)' _
2247         $(Q)rm -f $(PYLINT_CUR)
2248         $(Q)( cd pylint.out; for f in *; do \
2249                 sed -ne "s/Your code has been rated at \([-0-9.]*\).*/$$f \1/p" $$f; \
2250         done ) | sort > $(PYLINT_CUR)
2251         $(Q)base=$$(mktemp) cur=$$(mktemp); cut -d' ' -f1 $(PYLINT_BASE) >$$base; \
2252                 cut -d' ' -f1 $(PYLINT_CUR) >$$cur; \
2253                 comm -3 $$base $$cur > $(PYLINT_DIFF); \
2254                 if [ -s $(PYLINT_DIFF) ]; then \
2255                         echo "Files have been added/removed. Try:\n\tcp $(PYLINT_CUR) $(PYLINT_BASE)"; \
2256                         echo; \
2257                         echo "Added files:"; \
2258                         comm -13 $$base $$cur; \
2259                         echo; \
2260                         echo "Removed files:"; \
2261                         comm -23 $$base $$cur; \
2262                         false; \
2263                 else \
2264                         rm $$base $$cur $(PYLINT_DIFF); \
2265                 fi
2266         $(Q)bad=false; while read base_file base_val <&3 && read cur_file cur_val <&4; do \
2267                 if awk "BEGIN {exit !($$cur_val < $$base_val)}"; then \
2268                         echo "$$base_file: Score was $$base_val, now $$cur_val"; \
2269                         bad=true; fi; \
2270                 done 3<$(PYLINT_BASE) 4<$(PYLINT_CUR); \
2271                 if $$bad; then \
2272                         echo "Some files have regressed, please fix"; \
2273                         false; \
2274                 else \
2275                         echo "No pylint regressions"; \
2276                 fi
2277
2278 # Check for errors only
2279 pylint_err:
2280         $(Q)pylint -E  -j 0 --ignore-imports=yes \
2281                 $(shell find tools test -name "*.py")
2282
2283 backup:
2284         F=`basename $(srctree)` ; cd .. ; \
2285         gtar --force-local -zcvf `LC_ALL=C date "+$$F-%Y-%m-%d-%T.tar.gz"` $$F
2286
2287 PHONY += _pip pip pip_release
2288
2289 pip_release: PIP_ARGS="--real"
2290 pip_test: PIP_ARGS=""
2291 pip: PIP_ARGS="-n"
2292
2293 pip pip_test pip_release: _pip
2294
2295 _pip:
2296         scripts/make_pip.sh u_boot_pylib ${PIP_ARGS}
2297         scripts/make_pip.sh patman ${PIP_ARGS}
2298         scripts/make_pip.sh buildman ${PIP_ARGS}
2299         scripts/make_pip.sh dtoc ${PIP_ARGS}
2300         scripts/make_pip.sh binman ${PIP_ARGS}
2301
2302 help:
2303         @echo  'Cleaning targets:'
2304         @echo  '  clean           - Remove most generated files but keep the config'
2305         @echo  '  mrproper        - Remove all generated files + config + various backup files'
2306         @echo  '  distclean       - mrproper + remove editor backup and patch files'
2307         @echo  ''
2308         @echo  'Configuration targets:'
2309         @$(MAKE) -f $(srctree)/scripts/kconfig/Makefile help
2310         @echo  ''
2311         @echo  'Test targets:'
2312         @echo  ''
2313         @echo  '  check           - Run all automated tests that use sandbox'
2314         @echo  '  pcheck          - Run quick automated tests in parallel'
2315         @echo  '  qcheck          - Run quick automated tests that use sandbox'
2316         @echo  '  tcheck          - Run quick automated tests on tools'
2317         @echo  '  pylint          - Run pylint on all Python files'
2318         @echo  ''
2319         @echo  'Other generic targets:'
2320         @echo  '  all             - Build all necessary images depending on configuration'
2321         @echo  '  tests           - Build U-Boot for sandbox and run tests'
2322         @echo  '* u-boot          - Build the bare u-boot'
2323         @echo  '  dir/            - Build all files in dir and below'
2324         @echo  '  dir/file.[oisS] - Build specified target only'
2325         @echo  '  dir/file.lst    - Build specified mixed source/assembly target only'
2326         @echo  '                    (requires a recent binutils and recent build (System.map))'
2327         @echo  '  tags/ctags      - Generate ctags file for editors'
2328         @echo  '  etags           - Generate etags file for editors'
2329         @echo  '  cscope          - Generate cscope index'
2330         @echo  '  ubootrelease    - Output the release version string (use with make -s)'
2331         @echo  '  ubootversion    - Output the version stored in Makefile (use with make -s)'
2332         @echo  "  cfg             - Don't build, just create the .cfg files"
2333         @echo  "  envtools        - Build only the target-side environment tools"
2334         @echo  ''
2335         @echo  'PyPi / pip targets:'
2336         @echo  '  pip             - Check building of PyPi packages'
2337         @echo  '  pip_test        - Build PyPi pakages and upload to test server'
2338         @echo  '  pip_release     - Build PyPi pakages and upload to release server'
2339         @echo  ''
2340         @echo  'Static analysers'
2341         @echo  '  checkstack      - Generate a list of stack hogs'
2342         @echo  '  coccicheck      - Execute static code analysis with Coccinelle'
2343         @echo  ''
2344         @echo  'Documentation targets:'
2345         @$(MAKE) -f $(srctree)/doc/Makefile dochelp
2346         @echo  ''
2347         @echo  '  make V=0|1 [targets] 0 => quiet build (default), 1 => verbose build'
2348         @echo  '  make V=2   [targets] 2 => give reason for rebuild of target'
2349         @echo  '  make O=dir [targets] Locate all output files in "dir", including .config'
2350         @echo  '  make C=1   [targets] Check all c source with $$CHECK (sparse by default)'
2351         @echo  '  make C=2   [targets] Force check of all c source with $$CHECK'
2352         @echo  '  make RECORDMCOUNT_WARN=1 [targets] Warn about ignored mcount sections'
2353         @echo  '  make W=n   [targets] Enable extra gcc checks, n=1,2,3 where'
2354         @echo  '                1: warnings which may be relevant and do not occur too often'
2355         @echo  '                2: warnings which occur quite often but may still be relevant'
2356         @echo  '                3: more obscure warnings, can most likely be ignored'
2357         @echo  '                Multiple levels can be combined with W=12 or W=123'
2358         @echo  ''
2359         @echo  'Execute "make" or "make all" to build all targets marked with [*] '
2360         @echo  'For further info see the ./README file'
2361
2362 tests check:
2363         $(srctree)/test/run
2364
2365 pcheck:
2366         $(srctree)/test/run parallel
2367
2368 qcheck:
2369         $(srctree)/test/run quick
2370
2371 tcheck:
2372         $(srctree)/test/run tools
2373
2374 # Documentation targets
2375 # ---------------------------------------------------------------------------
2376 DOC_TARGETS := xmldocs latexdocs pdfdocs htmldocs epubdocs cleandocs \
2377                linkcheckdocs dochelp refcheckdocs texinfodocs infodocs
2378 PHONY += $(DOC_TARGETS)
2379 $(DOC_TARGETS): scripts_basic FORCE
2380         $(Q)$(MAKE) $(build)=doc $@
2381
2382 PHONY += checkstack ubootrelease ubootversion
2383
2384 checkstack:
2385         $(OBJDUMP) -d u-boot $$(find . -name u-boot-spl) | \
2386         $(PERL) $(src)/scripts/checkstack.pl $(ARCH)
2387
2388 ubootrelease:
2389         @echo "$(UBOOTVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))"
2390
2391 ubootversion:
2392         @echo $(UBOOTVERSION)
2393
2394 # Single targets
2395 # ---------------------------------------------------------------------------
2396 # Single targets are compatible with:
2397 # - build with mixed source and output
2398 # - build with separate output dir 'make O=...'
2399 # - external modules
2400 #
2401 #  target-dir => where to store outputfile
2402 #  build-dir  => directory in kernel source tree to use
2403
2404 ifeq ($(KBUILD_EXTMOD),)
2405         build-dir  = $(patsubst %/,%,$(dir $@))
2406         target-dir = $(dir $@)
2407 else
2408         zap-slash=$(filter-out .,$(patsubst %/,%,$(dir $@)))
2409         build-dir  = $(KBUILD_EXTMOD)$(if $(zap-slash),/$(zap-slash))
2410         target-dir = $(if $(KBUILD_EXTMOD),$(dir $<),$(dir $@))
2411 endif
2412
2413 %.s: %.c prepare scripts FORCE
2414         $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
2415 %.i: %.c prepare scripts FORCE
2416         $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
2417 %.o: %.c prepare scripts FORCE
2418         $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
2419 %.lst: %.c prepare scripts FORCE
2420         $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
2421 %.s: %.S prepare scripts FORCE
2422         $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
2423 %.o: %.S prepare scripts FORCE
2424         $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
2425 %.symtypes: %.c prepare scripts FORCE
2426         $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
2427
2428 # Modules
2429 /: prepare scripts FORCE
2430         $(cmd_crmodverdir)
2431         $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \
2432         $(build)=$(build-dir)
2433 %/: prepare scripts FORCE
2434         $(cmd_crmodverdir)
2435         $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \
2436         $(build)=$(build-dir)
2437 %.ko: prepare scripts FORCE
2438         $(cmd_crmodverdir)
2439         $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1)   \
2440         $(build)=$(build-dir) $(@:.ko=.o)
2441         $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost
2442
2443 quiet_cmd_genenv = GENENV  $@
2444 cmd_genenv = \
2445         $(objtree)/tools/printinitialenv | \
2446         sed -e '/^\s*$$/d' | \
2447         sort -t '=' -k 1,1 -s -o $@
2448
2449 u-boot-initial-env: $(env_h) FORCE
2450         $(Q)$(MAKE) $(build)=tools $(objtree)/tools/printinitialenv
2451         $(call if_changed,genenv)
2452
2453 # Consistency checks
2454 # ---------------------------------------------------------------------------
2455
2456 PHONY += coccicheck
2457
2458 coccicheck:
2459         $(Q)$(CONFIG_SHELL) $(srctree)/scripts/$@
2460
2461 # FIXME Should go into a make.lib or something
2462 # ===========================================================================
2463
2464 quiet_cmd_rmdirs = $(if $(wildcard $(rm-dirs)),CLEAN   $(wildcard $(rm-dirs)))
2465       cmd_rmdirs = rm -rf $(rm-dirs)
2466
2467 quiet_cmd_rmfiles = $(if $(wildcard $(rm-files)),CLEAN   $(wildcard $(rm-files)))
2468       cmd_rmfiles = rm -f $(rm-files)
2469
2470 # read all saved command lines
2471
2472 cmd_files := $(wildcard .*.cmd)
2473
2474 ifneq ($(cmd_files),)
2475   $(cmd_files): ;       # Do not try to update included dependency files
2476   include $(cmd_files)
2477 endif
2478
2479 endif    #ifeq ($(config-targets),1)
2480 endif    #ifeq ($(mixed-targets),1)
2481 endif   # skip-makefile
2482
2483 PHONY += FORCE
2484 FORCE:
2485
2486 # Declare the contents of the PHONY variable as phony.  We keep that
2487 # information in a variable so we can use it in if_changed and friends.
2488 .PHONY: $(PHONY)