Makefile

   1 # SPDX-License-Identifier: GPL-2.0+
   2
   3 VERSION = 2026
   4 PATCHLEVEL = 01
   5 SUBLEVEL =
   6 EXTRAVERSION = -rc1
   7 NAME =
   8
   9 # *DOCUMENTATION*
  10 # To see a list of typical targets execute "make help"
  11 # More info can be located in ./README
  12 # Comments in this file are targeted only to the developer, do not
  13 # expect to learn how to build the kernel reading this file.
  14
  15 # That's our default target when none is given on the command line
  16 PHONY := _all
  17 _all:
  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/^\(.*ccache\)\{0,1\}[[:space:]]*\([^\/]*\/\)*\([^-]*\)-[^[:space:]]*/\3/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 $(MK_ARCH), "arm" "armv5tel" "armv6l" "armv7" "armv7a" "armv7l"))
  34   export HOST_ARCH=$(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 # We are using a recursive build, so we need to do a little thinking
  43 # to get the ordering right.
  44 #
  45 # Most importantly: sub-Makefiles should only ever modify files in
  46 # their own directory. If in some directory we have a dependency on
  47 # a file in another dir (which doesn't happen often, but it's often
  48 # unavoidable when linking the built-in.a targets which finally
  49 # turn into vmlinux), we will call a sub make in that other dir, and
  50 # after that we are sure that everything which is in that other dir
  51 # is now up to date.
  52 #
  53 # The only cases where we need to modify files which have global
  54 # effects are thus separated out and done before the recursive
  55 # descending is started. They are now explicitly listed as the
  56 # prepare rule.
  57
  58 ifneq ($(sub_make_done),1)
  59
  60 # Do not use make's built-in rules and variables
  61 # (this increases performance and avoids hard-to-debug behaviour)
  62 MAKEFLAGS += -rR
  63
  64 # Avoid funny character set dependencies
  65 unexport LC_ALL
  66 LC_COLLATE=C
  67 LC_NUMERIC=C
  68 export LC_COLLATE LC_NUMERIC
  69
  70 # Avoid interference with shell env settings
  71 unexport GREP_OPTIONS
  72
  73 # Beautify output
  74 # ---------------------------------------------------------------------------
  75 #
  76 # Normally, we echo the whole command before executing it. By making
  77 # that echo $($(quiet)$(cmd)), we now have the possibility to set
  78 # $(quiet) to choose other forms of output instead, e.g.
  79 #
  80 #         quiet_cmd_cc_o_c = Compiling $(RELDIR)/$@
  81 #         cmd_cc_o_c       = $(CC) $(c_flags) -c -o $@ $<
  82 #
  83 # If $(quiet) is empty, the whole command will be printed.
  84 # If it is set to "quiet_", only the short version will be printed.
  85 # If it is set to "silent_", nothing will be printed at all, since
  86 # the variable $(silent_cmd_cc_o_c) doesn't exist.
  87 #
  88 # A simple variant is to prefix commands with $(Q) - that's useful
  89 # for commands that shall be hidden in non-verbose mode.
  90 #
  91 #       $(Q)ln $@ :<
  92 #
  93 # If KBUILD_VERBOSE equals 0 then the above command will be hidden.
  94 # If KBUILD_VERBOSE equals 1 then the above command is displayed.
  95 #
  96 # To put more focus on warnings, be less verbose as default
  97 # Use 'make V=1' to see the full commands
  98
  99 ifeq ("$(origin V)", "command line")
 100   KBUILD_VERBOSE = $(V)
 101 endif
 102 ifndef KBUILD_VERBOSE
 103   KBUILD_VERBOSE = 0
 104 endif
 105
 106 ifeq ($(KBUILD_VERBOSE),1)
 107   quiet =
 108   Q =
 109 else
 110   quiet=quiet_
 111   Q = @
 112 endif
 113
 114 # If the user is running make -s (silent mode), suppress echoing of
 115 # commands
 116 ifneq ($(filter 4.%,$(MAKE_VERSION)),)  # make-4
 117 ifneq ($(filter %s ,$(firstword x$(MAKEFLAGS))),)
 118   quiet=silent_
 119 endif
 120 else                                    # make-3.8x
 121 ifneq ($(filter s% -s%,$(MAKEFLAGS)),)
 122   quiet=silent_
 123 endif
 124 endif
 125
 126 export quiet Q KBUILD_VERBOSE
 127
 128 # kbuild supports saving output files in a separate directory.
 129 # To locate output files in a separate directory two syntaxes are supported.
 130 # In both cases the working directory must be the root of the kernel src.
 131 # 1) O=
 132 # Use "make O=dir/to/store/output/files/"
 133 #
 134 # 2) Set KBUILD_OUTPUT
 135 # Set the environment variable KBUILD_OUTPUT to point to the directory
 136 # where the output files shall be placed.
 137 # export KBUILD_OUTPUT=dir/to/store/output/files/
 138 # make
 139 #
 140 # The O= assignment takes precedence over the KBUILD_OUTPUT environment
 141 # variable.
 142
 143 # KBUILD_SRC is not intended to be used by the regular user (for now),
 144 # it is set on invocation of make with KBUILD_OUTPUT or O= specified.
 145
 146 # OK, Make called in directory where kernel src resides
 147 # Do we want to locate output files in a separate directory?
 148 ifeq ("$(origin O)", "command line")
 149   KBUILD_OUTPUT := $(O)
 150 endif
 151
 152 ifneq ($(words $(subst :, ,$(CURDIR))), 1)
 153   $(error main directory cannot contain spaces nor colons)
 154 endif
 155
 156 ifneq ($(KBUILD_OUTPUT),)
 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                                                                 && 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=$(CURDIR)
 170
 171 need-sub-make := 1
 172 else
 173
 174 # Do not print "Entering directory ..." at all for in-tree build.
 175 MAKEFLAGS += --no-print-directory
 176
 177 endif # ifneq ($(KBUILD_OUTPUT),)
 178
 179 ifneq ($(filter 3.%,$(MAKE_VERSION)),)
 180 # 'MAKEFLAGS += -rR' does not immediately become effective for GNU Make 3.x
 181 # We need to invoke sub-make to avoid implicit rules in the top Makefile.
 182 need-sub-make := 1
 183 # Cancel implicit rules for this Makefile.
 184 $(lastword $(MAKEFILE_LIST)): ;
 185 endif
 186
 187 export sub_make_done := 1
 188
 189 ifeq ($(need-sub-make),1)
 190
 191 PHONY += $(MAKECMDGOALS) sub-make
 192
 193 $(filter-out _all sub-make $(CURDIR)/Makefile, $(MAKECMDGOALS)) _all: sub-make
 194         @:
 195
 196 # Invoke a second make in the output directory, passing relevant variables
 197 sub-make:
 198         $(Q)$(MAKE) \
 199         $(if $(KBUILD_OUTPUT),-C $(KBUILD_OUTPUT) KBUILD_SRC=$(CURDIR)) \
 200         -f $(CURDIR)/Makefile $(filter-out _all sub-make,$(MAKECMDGOALS))
 201
 202 endif # need-sub-make
 203 endif # sub_make_done
 204
 205 # We process the rest of the Makefile if this is the final invocation of make
 206 ifeq ($(need-sub-make),)
 207
 208 # Do not print "Entering directory ...",
 209 # but we want to display it when entering to the output directory
 210 # so that IDEs/editors are able to understand relative filenames.
 211 MAKEFLAGS += --no-print-directory
 212
 213 # Call a source code checker (by default, "sparse") as part of the
 214 # C compilation.
 215 #
 216 # Use 'make C=1' to enable checking of only re-compiled files.
 217 # Use 'make C=2' to enable checking of *all* source files, regardless
 218 # of whether they are re-compiled or not.
 219 #
 220 # See the file "Documentation/dev-tools/sparse.rst" for more details,
 221 # including where to get the "sparse" utility.
 222
 223 ifeq ("$(origin C)", "command line")
 224   KBUILD_CHECKSRC = $(C)
 225 endif
 226 ifndef KBUILD_CHECKSRC
 227   KBUILD_CHECKSRC = 0
 228 endif
 229
 230 # Use make M=dir to specify directory of external module to build
 231 # Old syntax make ... SUBDIRS=$PWD is still supported
 232 # Setting the environment variable KBUILD_EXTMOD take precedence
 233 ifdef SUBDIRS
 234   $(warning ================= WARNING ================)
 235   $(warning 'SUBDIRS' will be removed after Linux 5.3)
 236   $(warning Please use 'M=' or 'KBUILD_EXTMOD' instead)
 237   $(warning ==========================================)
 238   KBUILD_EXTMOD ?= $(SUBDIRS)
 239 endif
 240
 241 ifeq ("$(origin M)", "command line")
 242   KBUILD_EXTMOD := $(M)
 243 endif
 244
 245 ifeq ($(KBUILD_SRC),)
 246         # building in the source tree
 247         srctree := .
 248 else
 249         ifeq ($(KBUILD_SRC)/,$(dir $(CURDIR)))
 250                 # building in a subdirectory of the source tree
 251                 srctree := ..
 252         else
 253                 srctree := $(KBUILD_SRC)
 254         endif
 255 endif
 256
 257 export KBUILD_CHECKSRC KBUILD_EXTMOD KBUILD_SRC
 258
 259 objtree         := .
 260 src             := $(srctree)
 261 obj             := $(objtree)
 262
 263 VPATH           := $(srctree)
 264
 265 export srctree objtree VPATH
 266
 267 # To make sure we do not include .config for any of the *config targets
 268 # catch them early, and hand them over to scripts/kconfig/Makefile
 269 # It is allowed to specify more targets when calling make, including
 270 # mixing *config targets and build targets.
 271 # For example 'make oldconfig all'.
 272 # Detect when mixed targets is specified, and make a second invocation
 273 # of make so .config is not included in this case either (for *config).
 274
 275 version_h := include/generated/version_autogenerated.h
 276 timestamp_h := include/generated/timestamp_autogenerated.h
 277 defaultenv_h := include/generated/defaultenv_autogenerated.h
 278 dt_h := include/generated/dt.h
 279 env_h := include/generated/environment.h
 280
 281 clean-targets := %clean mrproper cleandocs
 282 no-dot-config-targets := $(clean-targets) \
 283                          clobber distclean \
 284                          help %docs check% coccicheck \
 285                          ubootversion backup tests check pcheck qcheck tcheck \
 286                          pylint pylint_err _pip pip pip_test pip_release
 287 no-sync-config-targets := $(no-dot-config-targets) install %install \
 288                            kernelrelease
 289
 290 config-targets  := 0
 291 mixed-targets   := 0
 292 dot-config      := 1
 293 may-sync-config := 1
 294
 295 ifneq ($(filter $(no-dot-config-targets), $(MAKECMDGOALS)),)
 296         ifeq ($(filter-out $(no-dot-config-targets), $(MAKECMDGOALS)),)
 297                 dot-config := 0
 298         endif
 299 endif
 300
 301 ifneq ($(filter $(no-sync-config-targets), $(MAKECMDGOALS)),)
 302         ifeq ($(filter-out $(no-sync-config-targets), $(MAKECMDGOALS)),)
 303                 may-sync-config := 0
 304         endif
 305 endif
 306
 307 ifneq ($(KBUILD_EXTMOD),)
 308         may-sync-config := 0
 309 endif
 310
 311 ifeq ($(KBUILD_EXTMOD),)
 312         ifneq ($(filter config %config,$(MAKECMDGOALS)),)
 313                 config-targets := 1
 314                 ifneq ($(words $(MAKECMDGOALS)),1)
 315                         mixed-targets := 1
 316                 endif
 317         endif
 318 endif
 319
 320 # For "make -j clean all", "make -j mrproper defconfig all", etc.
 321 ifneq ($(filter $(clean-targets),$(MAKECMDGOALS)),)
 322         ifneq ($(filter-out $(clean-targets),$(MAKECMDGOALS)),)
 323                 mixed-targets := 1
 324         endif
 325 endif
 326
 327 # install and modules_install need also be processed one by one
 328 ifneq ($(filter install,$(MAKECMDGOALS)),)
 329         ifneq ($(filter modules_install,$(MAKECMDGOALS)),)
 330                 mixed-targets := 1
 331         endif
 332 endif
 333
 334 ifeq ($(mixed-targets),1)
 335 # ===========================================================================
 336 # We're called with mixed targets (*config and build targets).
 337 # Handle them one by one.
 338
 339 PHONY += $(MAKECMDGOALS) __build_one_by_one
 340
 341 $(filter-out __build_one_by_one, $(MAKECMDGOALS)): __build_one_by_one
 342         @:
 343
 344 __build_one_by_one:
 345         $(Q)set -e; \
 346         for i in $(MAKECMDGOALS); do \
 347                 $(MAKE) -f $(srctree)/Makefile $$i; \
 348         done
 349
 350 else
 351
 352 include scripts/Kbuild.include
 353
 354 # Read UBOOTRELEASE from include/config/uboot.release (if it exists)
 355 UBOOTRELEASE = $(shell cat include/config/uboot.release 2> /dev/null)
 356 UBOOTVERSION = $(VERSION)$(if $(PATCHLEVEL),.$(PATCHLEVEL)$(if $(SUBLEVEL),.$(SUBLEVEL)))$(EXTRAVERSION)
 357 export VERSION PATCHLEVEL SUBLEVEL UBOOTRELEASE UBOOTVERSION
 358
 359 # Modified for U-Boot
 360 -include scripts/subarch.include
 361
 362 # Cross compiling and selecting different set of gcc/bin-utils
 363 # ---------------------------------------------------------------------------
 364 #
 365 # When performing cross compilation for other architectures ARCH shall be set
 366 # to the target architecture. (See arch/* for the possibilities).
 367 # ARCH can be set during invocation of make:
 368 # make ARCH=ia64
 369 # Another way is to have ARCH set in the environment.
 370 # The default ARCH is the host where make is executed.
 371
 372 # CROSS_COMPILE specify the prefix used for all executables used
 373 # during compilation. Only gcc and related bin-utils executables
 374 # are prefixed with $(CROSS_COMPILE).
 375 # CROSS_COMPILE can be set on the command line
 376 # make CROSS_COMPILE=ia64-linux-
 377 # Alternatively CROSS_COMPILE can be set in the environment.
 378 # Default value for CROSS_COMPILE is not to prefix executables
 379 # Note: Some architectures assign CROSS_COMPILE in their arch/*/Makefile
 380 ARCH            ?= $(SUBARCH)
 381
 382 # Architecture as present in compile.h
 383 UTS_MACHINE     := $(ARCH)
 384 SRCARCH         := $(ARCH)
 385
 386 # Additional ARCH settings for x86
 387 ifeq ($(ARCH),i386)
 388         SRCARCH := x86
 389 endif
 390 ifeq ($(ARCH),x86_64)
 391         SRCARCH := x86
 392 endif
 393
 394 # Additional ARCH settings for sparc
 395 ifeq ($(ARCH),sparc32)
 396        SRCARCH := sparc
 397 endif
 398 ifeq ($(ARCH),sparc64)
 399        SRCARCH := sparc
 400 endif
 401
 402 # Additional ARCH settings for sh
 403 ifeq ($(ARCH),sh64)
 404        SRCARCH := sh
 405 endif
 406
 407 KCONFIG_CONFIG  ?= .config
 408 export KCONFIG_CONFIG
 409
 410 # SHELL used by kbuild
 411 CONFIG_SHELL := $(shell if [ -x "$$BASH" ]; then echo $$BASH; \
 412           else if [ -x /bin/bash ]; then echo /bin/bash; \
 413           else echo sh; fi ; fi)
 414
 415 HOST_LFS_CFLAGS := $(shell getconf LFS_CFLAGS 2>/dev/null)
 416 HOST_LFS_LDFLAGS := $(shell getconf LFS_LDFLAGS 2>/dev/null)
 417 HOST_LFS_LIBS := $(shell getconf LFS_LIBS 2>/dev/null)
 418
 419 HOSTCC       = cc
 420 HOSTCXX      = c++
 421 KBUILD_HOSTCFLAGS   := -Wall -Wstrict-prototypes -O2 \
 422                 -fomit-frame-pointer -std=gnu11 $(HOST_LFS_CFLAGS) \
 423                 $(HOSTCFLAGS) #-Wmissing-prototypes Enable it and fix warnings
 424 KBUILD_HOSTCXXFLAGS := -O2 $(HOST_LFS_CFLAGS) $(HOSTCXXFLAGS)
 425 KBUILD_HOSTLDFLAGS  := $(HOST_LFS_LDFLAGS) $(HOSTLDFLAGS)
 426 KBUILD_HOSTLDLIBS   := $(HOST_LFS_LIBS) $(HOSTLDLIBS)
 427
 428 # Check ths size of a binary:
 429 # Args:
 430 #   $1: File to check
 431 #   #2: Size limit in bytes (decimal or 0xhex)
 432 define size_check
 433         actual=$$( wc -c $1 | awk '{print $$1}'); \
 434         limit=$$( printf "%d" $2 ); \
 435         if test $$actual -gt $$limit; then \
 436                 echo "$1 exceeds file size limit:" >&2; \
 437                 echo "  limit:  $$(printf %#x $$limit) bytes" >&2; \
 438                 echo "  actual: $$(printf %#x $$actual) bytes" >&2; \
 439                 echo "  excess: $$(printf %#x $$((actual - limit))) bytes" >&2;\
 440                 exit 1; \
 441         fi
 442 endef
 443 export size_check
 444
 445 export KBUILD_MODULES KBUILD_BUILTIN
 446 export KBUILD_CHECKSRC KBUILD_SRC KBUILD_EXTMOD
 447
 448 # Make variables (CC, etc...)
 449 AS              = $(CROSS_COMPILE)as
 450 LD              = $(CROSS_COMPILE)ld
 451 CC              = $(CROSS_COMPILE)gcc
 452 CPP             = $(CC) -E
 453 AR              = $(CROSS_COMPILE)ar
 454 NM              = $(CROSS_COMPILE)nm
 455 LDR             = $(CROSS_COMPILE)ldr
 456 STRIP           = $(CROSS_COMPILE)strip
 457 OBJCOPY         = $(CROSS_COMPILE)objcopy
 458 OBJDUMP         = $(CROSS_COMPILE)objdump
 459 READELF         = $(CROSS_COMPILE)readelf
 460 LEX             = flex
 461 YACC            = bison
 462 AWK             = awk
 463 INSTALLKERNEL  := installkernel
 464 DEPMOD          = /sbin/depmod
 465 PERL            = perl
 466 PYTHON          = python
 467 PYTHON2         = python2
 468 PYTHON3         = python3
 469
 470 # The devicetree compiler and pylibfdt are automatically built unless DTC is
 471 # provided. If DTC is provided, it is assumed the pylibfdt is available too.
 472 DTC_INTREE      := $(objtree)/scripts/dtc/dtc
 473 DTC             ?= $(DTC_INTREE)
 474 DTC_MIN_VERSION := 010406
 475
 476 CHECK           = sparse
 477
 478 CHECKFLAGS     := -D__linux__ -Dlinux -D__STDC__ -Dunix -D__unix__ \
 479                   -Wbitwise -Wno-return-void -Wno-unknown-attribute -D__CHECK_ENDIAN__ $(CF)
 480 NOSTDINC_FLAGS :=
 481 CFLAGS_MODULE   =
 482 AFLAGS_MODULE   =
 483 LDFLAGS_MODULE  =
 484 CFLAGS_KERNEL   =
 485 AFLAGS_KERNEL   =
 486 LDFLAGS_vmlinux =
 487
 488 # Use USERINCLUDE when you must reference the UAPI directories only.
 489 USERINCLUDE    := \
 490                 -I$(srctree)/arch/$(SRCARCH)/include/uapi \
 491                 -I$(objtree)/arch/$(SRCARCH)/include/generated/uapi \
 492                 -I$(srctree)/include/uapi \
 493                 -I$(objtree)/include/generated/uapi \
 494                 -include $(srctree)/include/linux/kconfig.h
 495
 496 # Use UBOOTINCLUDE when you must reference the include/ directory.
 497 # Needed to be compatible with the O= option
 498 UBOOTINCLUDE    := \
 499         -Iinclude \
 500         $(if $(KBUILD_SRC), -I$(srctree)/include) \
 501         $(if $(CONFIG_$(XPL_)MBEDTLS_LIB), \
 502                 "-DMBEDTLS_CONFIG_FILE=\"mbedtls_def_config.h\"" \
 503                 -I$(srctree)/lib/mbedtls \
 504                 -I$(srctree)/lib/mbedtls/port \
 505                 -I$(srctree)/lib/mbedtls/external/mbedtls \
 506                 -I$(srctree)/lib/mbedtls/external/mbedtls/include) \
 507         $(if $(CONFIG_$(PHASE_)SYS_THUMB_BUILD), \
 508                 $(if $(CONFIG_HAS_THUMB2), \
 509                         $(if $(CONFIG_CPU_V7M), \
 510                                 -I$(srctree)/arch/arm/thumb1/include), \
 511                         -I$(srctree)/arch/arm/thumb1/include)) \
 512         -I$(srctree)/arch/$(ARCH)/include \
 513         -include $(srctree)/include/linux/kconfig.h \
 514         -I$(srctree)/dts/upstream/include \
 515         $(if $(CONFIG_NET_LWIP), -I$(srctree)/lib/lwip/lwip/src/include \
 516                 -I$(srctree)/lib/lwip/u-boot)
 517
 518
 519 KBUILD_AFLAGS   := -D__ASSEMBLY__ -fno-PIE
 520 KBUILD_CFLAGS   := -Wall -Werror=strict-prototypes -Wno-trigraphs \
 521                    -fno-strict-aliasing -fno-common -fshort-wchar -fno-PIE \
 522                    -Werror=implicit-function-declaration -Werror=implicit-int \
 523                    -Wno-format-security -std=gnu11 #-Wundef Enable it and fix warnings
 524 UBOOT_CFLAGS    := -ffreestanding -fno-builtin
 525 KBUILD_CFLAGS   += $(UBOOT_CFLAGS)
 526
 527 KBUILD_CPPFLAGS := -D__KERNEL__ -D__UBOOT__
 528 KBUILD_AFLAGS_KERNEL :=
 529 KBUILD_CFLAGS_KERNEL :=
 530 KBUILD_AFLAGS_MODULE  := -DMODULE
 531 KBUILD_CFLAGS_MODULE  := -DMODULE
 532 KBUILD_LDFLAGS_MODULE := -T $(srctree)/scripts/module-common.lds
 533 KBUILD_LDFLAGS :=
 534 GCC_PLUGINS_CFLAGS :=
 535
 536 export ARCH SRCARCH CONFIG_SHELL HOSTCC KBUILD_HOSTCFLAGS CROSS_COMPILE AS LD CC
 537 export CPP AR NM STRIP OBJCOPY OBJDUMP KBUILD_HOSTLDFLAGS KBUILD_HOSTLDLIBS
 538 export MAKE LEX YACC AWK INSTALLKERNEL PERL PYTHON PYTHON2 PYTHON3 UTS_MACHINE
 539 export HOSTCXX KBUILD_HOSTCXXFLAGS LDFLAGS_MODULE CHECK CHECKFLAGS
 540
 541 export KBUILD_CPPFLAGS NOSTDINC_FLAGS LINUXINCLUDE OBJCOPYFLAGS KBUILD_LDFLAGS
 542 export KBUILD_CFLAGS CFLAGS_KERNEL CFLAGS_MODULE
 543 export CFLAGS_KASAN CFLAGS_KASAN_NOSANITIZE CFLAGS_UBSAN
 544 export KBUILD_AFLAGS AFLAGS_KERNEL AFLAGS_MODULE
 545 export KBUILD_AFLAGS_MODULE KBUILD_CFLAGS_MODULE KBUILD_LDFLAGS_MODULE
 546 export KBUILD_AFLAGS_KERNEL KBUILD_CFLAGS_KERNEL
 547 export KBUILD_ARFLAGS
 548
 549 export LDR
 550 export CPU BOARD VENDOR SOC CPUDIR BOARDDIR
 551 export UBOOTINCLUDE
 552 export CC_VERSION_TEXT := $(shell $(CC) --version | head -n 1)
 553
 554 # When compiling out-of-tree modules, put MODVERDIR in the module
 555 # tree rather than in the kernel tree. The kernel tree might
 556 # even be read-only.
 557 export MODVERDIR := $(if $(KBUILD_EXTMOD),$(firstword $(KBUILD_EXTMOD))/).tmp_versions
 558
 559 # Files to ignore in find ... statements
 560
 561 export RCS_FIND_IGNORE := \( -name SCCS -o -name BitKeeper -o -name .svn -o    \
 562                           -name CVS -o -name .pc -o -name .hg -o -name .git \) \
 563                           -prune -o
 564 export RCS_TAR_IGNORE := --exclude SCCS --exclude BitKeeper --exclude .svn \
 565                          --exclude CVS --exclude .pc --exclude .hg --exclude .git
 566
 567 export PYTHON_ENABLE
 568
 569 # This is y if U-Boot should not build any Python tools or libraries. Typically
 570 # you would need to set this if those tools/libraries (typically binman and
 571 # pylibfdt) cannot be built by your environment and are provided separately.
 572 ifeq ($(NO_PYTHON),)
 573 PYTHON_ENABLE=y
 574 endif
 575
 576 # ===========================================================================
 577 # Rules shared between *config targets and build targets
 578
 579 # Basic helpers built in scripts/basic/
 580 PHONY += scripts_basic
 581 scripts_basic:
 582         $(Q)$(MAKE) $(build)=scripts/basic
 583         $(Q)rm -f .tmp_quiet_recordmcount
 584
 585 PHONY += outputmakefile
 586 # outputmakefile generates a Makefile in the output directory, if using a
 587 # separate output directory. This allows convenient use of make in the
 588 # output directory.
 589 # At the same time when output Makefile generated, generate .gitignore to
 590 # ignore whole output directory
 591 outputmakefile:
 592 ifneq ($(KBUILD_SRC),)
 593         $(Q)ln -fsn $(srctree) source
 594         $(Q)$(CONFIG_SHELL) $(srctree)/scripts/mkmakefile $(srctree)
 595         $(Q)test -e .gitignore || \
 596         { echo "# this is build directory, ignore it"; echo "*"; } > .gitignore
 597 endif
 598
 599 ifneq ($(shell $(CC) --version 2>&1 | head -n 1 | grep clang),)
 600 ifneq ($(CROSS_COMPILE),)
 601 CLANG_FLAGS     := --target=$(notdir $(CROSS_COMPILE:%-=%))
 602 GCC_TOOLCHAIN_DIR := $(dir $(shell which $(CROSS_COMPILE)elfedit))
 603 CLANG_FLAGS     += --prefix=$(GCC_TOOLCHAIN_DIR)
 604 GCC_TOOLCHAIN   := $(realpath $(GCC_TOOLCHAIN_DIR)/..)
 605 endif
 606 ifneq ($(GCC_TOOLCHAIN),)
 607 CLANG_FLAGS     += --gcc-toolchain=$(GCC_TOOLCHAIN)
 608 endif
 609 CLANG_FLAGS     += -no-integrated-as
 610 KBUILD_CFLAGS   += $(CLANG_FLAGS)
 611 KBUILD_CPPFLAGS += $(CLANG_FLAGS)
 612 KBUILD_AFLAGS   += $(CLANG_FLAGS)
 613 export CLANG_FLAGS
 614 endif
 615
 616 RETPOLINE_CFLAGS_GCC := -mindirect-branch=thunk-extern -mindirect-branch-register
 617 RETPOLINE_VDSO_CFLAGS_GCC := -mindirect-branch=thunk-inline -mindirect-branch-register
 618 RETPOLINE_CFLAGS_CLANG := -mretpoline-external-thunk
 619 RETPOLINE_VDSO_CFLAGS_CLANG := -mretpoline
 620 RETPOLINE_CFLAGS := $(call cc-option,$(RETPOLINE_CFLAGS_GCC),$(call cc-option,$(RETPOLINE_CFLAGS_CLANG)))
 621 RETPOLINE_VDSO_CFLAGS := $(call cc-option,$(RETPOLINE_VDSO_CFLAGS_GCC),$(call cc-option,$(RETPOLINE_VDSO_CFLAGS_CLANG)))
 622 export RETPOLINE_CFLAGS
 623 export RETPOLINE_VDSO_CFLAGS
 624
 625 # The expansion should be delayed until arch/$(SRCARCH)/Makefile is included.
 626 # Some architectures define CROSS_COMPILE in arch/$(SRCARCH)/Makefile.
 627 # CC_VERSION_TEXT is referenced from Kconfig (so it needs export),
 628 # and from include/config/auto.conf.cmd to detect the compiler upgrade.
 629 CC_VERSION_TEXT = $(shell $(CC) --version | head -n 1)
 630
 631 ifeq ($(config-targets),1)
 632 # ===========================================================================
 633 # *config targets only - make sure prerequisites are updated, and descend
 634 # in scripts/kconfig to make the *config target
 635
 636 # Read arch specific Makefile to set KBUILD_DEFCONFIG as needed.
 637 # KBUILD_DEFCONFIG may point out an alternative default configuration
 638 # used for 'make defconfig'
 639 # Modified for U-Boot: we don't include arch/$(SRCARCH)/Makefile for config
 640 # targets, which is useless since U-Boot has no architecture defining its own
 641 # KBUILD_{DEF,K}CONFIG, or CROSS_COMPILE.
 642 export KBUILD_DEFCONFIG KBUILD_KCONFIG CC_VERSION_TEXT
 643
 644 config: scripts_basic outputmakefile FORCE
 645         $(Q)$(MAKE) $(build)=scripts/kconfig $@
 646
 647 %config: scripts_basic outputmakefile FORCE
 648         $(Q)$(MAKE) $(build)=scripts/kconfig $@
 649
 650 else
 651 # ===========================================================================
 652 # Build targets only - this includes vmlinux, arch specific targets, clean
 653 # targets and others. In general all targets except *config targets.
 654
 655 # If building an external module we do not care about the all: rule
 656 # but instead _all depend on modules
 657 PHONY += all
 658 ifeq ($(KBUILD_EXTMOD),)
 659 _all: all
 660 else
 661 _all: modules
 662 endif
 663
 664 # Decide whether to build built-in, modular, or both.
 665 # Normally, just do built-in.
 666
 667 KBUILD_MODULES :=
 668 KBUILD_BUILTIN := 1
 669
 670 # If we have only "make modules", don't compile built-in objects.
 671 # When we're building modules with modversions, we need to consider
 672 # the built-in objects during the descend as well, in order to
 673 # make sure the checksums are up to date before we record them.
 674
 675 ifeq ($(MAKECMDGOALS),modules)
 676   KBUILD_BUILTIN := $(if $(CONFIG_MODVERSIONS),1)
 677 endif
 678
 679 # If we have "make <whatever> modules", compile modules
 680 # in addition to whatever we do anyway.
 681 # Just "make" or "make all" shall build modules as well
 682
 683 ifneq ($(filter all _all modules,$(MAKECMDGOALS)),)
 684   KBUILD_MODULES := 1
 685 endif
 686
 687 ifeq ($(MAKECMDGOALS),)
 688   KBUILD_MODULES := 1
 689 endif
 690
 691 export KBUILD_MODULES KBUILD_BUILTIN
 692
 693 ifeq ($(KBUILD_EXTMOD),)
 694 # Objects we will link into vmlinux / subdirs we need to visit
 695 init-y          := init/
 696 drivers-y       := drivers/ sound/
 697 net-y           := net/
 698 libs-y          := lib/
 699 core-y          := usr/
 700 virt-y          := virt/
 701 endif # KBUILD_EXTMOD
 702
 703 ifeq ($(dot-config),1)
 704 # Modified for U-Boot
 705 -include include/config/auto.conf
 706 endif
 707
 708 # The all: target is the default when no target is given on the
 709 # command line.
 710 # This allow a user to issue only 'make' to build a kernel including modules
 711 # Defaults to vmlinux, but the arch makefile usually adds further targets
 712 all: u-boot
 713
 714 CFLAGS_GCOV     := -fprofile-arcs -ftest-coverage \
 715         $(call cc-option,-fno-tree-loop-im) \
 716         $(call cc-disable-warning,maybe-uninitialized,)
 717 export CFLAGS_GCOV
 718
 719 # The arch Makefiles can override CC_FLAGS_FTRACE. We may also append it later.
 720 ifdef CONFIG_FUNCTION_TRACER
 721   CC_FLAGS_FTRACE := -pg
 722 endif
 723
 724 # The arch Makefile can set ARCH_{CPP,A,C}FLAGS to override the default
 725 # values of the respective KBUILD_* variables
 726 ARCH_CPPFLAGS :=
 727 ARCH_AFLAGS :=
 728 ARCH_CFLAGS :=
 729 # Modified for U-Boot: we put off the include of arch/$(SRCARCH)/Makefile until
 730 # making sure include/config/auto.conf is up-to-date and include of config.mk,
 731 # because the architecture-specific Makefile may make use of variables defined
 732 # in config.mk. See also the comment about autoconf_is_old.
 733
 734 ifeq ($(dot-config),1)
 735 ifeq ($(may-sync-config),1)
 736 # Read in dependencies to all Kconfig* files, make sure to run syncconfig if
 737 # changes are detected. This should be included after arch/$(SRCARCH)/Makefile
 738 # because some architectures define CROSS_COMPILE there.
 739 -include include/config/auto.conf.cmd
 740
 741 $(KCONFIG_CONFIG):
 742         @echo >&2 '***'
 743         @echo >&2 '*** Configuration file "$@" not found!'
 744         @echo >&2 '***'
 745         @echo >&2 '*** Please run some configurator (e.g. "make oldconfig" or'
 746         @echo >&2 '*** "make menuconfig" or "make xconfig").'
 747         @echo >&2 '***'
 748         @/bin/false
 749
 750 # If .config is newer than include/config/auto.conf, someone tinkered
 751 # with it and forgot to run make oldconfig.
 752 # if auto.conf.cmd is missing then we are probably in a cleaned tree so
 753 # we execute the config step to be sure to catch updated Kconfig files
 754 include/config/%.conf: $(KCONFIG_CONFIG) #include/config/auto.conf.cmd
 755         $(Q)$(MAKE) -f $(srctree)/Makefile syncconfig
 756         @# If the following part fails, include/config/auto.conf should be
 757         @# deleted so "make silentoldconfig" will be re-run on the next build.
 758         $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.autoconf || \
 759                 { rm -f include/config/auto.conf; false; }
 760         @# include/config.h has been updated after "make silentoldconfig".
 761         @# We need to touch include/config/auto.conf so it gets newer
 762         @# than include/config.h.
 763         @# Otherwise, 'make silentoldconfig' would be invoked twice.
 764         $(Q)touch include/config/auto.conf
 765
 766 u-boot.cfg spl/u-boot.cfg tpl/u-boot.cfg vpl/u-boot.cfg:
 767         $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.autoconf $(@)
 768
 769 -include include/autoconf.mk
 770 -include include/autoconf.mk.dep
 771
 772 # We want to include arch/$(ARCH)/config.mk only when include/config/auto.conf
 773 # is up-to-date. When we switch to a different board configuration, old CONFIG
 774 # macros are still remaining in include/config/auto.conf. Without the following
 775 # gimmick, wrong config.mk would be included leading nasty warnings/errors.
 776 ifneq ($(wildcard $(KCONFIG_CONFIG)),)
 777 ifneq ($(wildcard include/config/auto.conf),)
 778 autoconf_is_old := $(shell find . -path ./$(KCONFIG_CONFIG) -newer \
 779                                                 include/config/auto.conf)
 780 ifeq ($(autoconf_is_old),)
 781 include config.mk
 782 include arch/$(ARCH)/Makefile
 783 endif
 784 endif
 785 endif
 786
 787 # These are set by the arch-specific config.mk. Make sure they are exported
 788 # so they can be used when building an EFI application.
 789 export EFI_LDS          # Filename of EFI link script in arch/$(ARCH)/lib
 790 export EFI_CRT0         # Filename of EFI CRT0 in arch/$(ARCH)/lib
 791 export EFI_RELOC        # Filename of EFU relocation code in arch/$(ARCH)/lib
 792 export CFLAGS_EFI       # Compiler flags to add when building EFI app
 793 export CFLAGS_NON_EFI   # Compiler flags to remove when building EFI app
 794 export EFI_TARGET       # binutils target if EFI is natively supported
 795
 796 export LTO_ENABLE
 797
 798 # This is y if LTO is enabled for this build. See NO_LTO=1 to disable LTO
 799 ifeq ($(NO_LTO),)
 800 LTO_ENABLE=$(if $(CONFIG_LTO),y)
 801 endif
 802
 803 # If board code explicitly specified LDSCRIPT or CONFIG_SYS_LDSCRIPT, use
 804 # that (or fail if absent).  Otherwise, search for a linker script in a
 805 # standard location.
 806
 807 ifndef LDSCRIPT
 808         #LDSCRIPT := $(srctree)/board/$(BOARDDIR)/u-boot.lds.debug
 809         ifdef CONFIG_SYS_LDSCRIPT
 810                 # need to strip off double quotes
 811                 LDSCRIPT := $(srctree)/$(CONFIG_SYS_LDSCRIPT:"%"=%)
 812         endif
 813 endif
 814
 815 # If there is no specified link script, we look in a number of places for it
 816 ifndef LDSCRIPT
 817         ifeq ($(wildcard $(LDSCRIPT)),)
 818                 LDSCRIPT := $(srctree)/board/$(BOARDDIR)/u-boot.lds
 819         endif
 820         ifeq ($(wildcard $(LDSCRIPT)),)
 821                 LDSCRIPT := $(srctree)/$(CPUDIR)/u-boot.lds
 822         endif
 823         ifeq ($(wildcard $(LDSCRIPT)),)
 824                 LDSCRIPT := $(srctree)/arch/$(ARCH)/cpu/u-boot.lds
 825         endif
 826 endif
 827
 828 else
 829 # External modules and some install targets need include/generated/autoconf.h
 830 # and include/config/auto.conf but do not care if they are up-to-date.
 831 # Use auto.conf to trigger the test
 832 PHONY += include/config/auto.conf
 833
 834 include/config/auto.conf:
 835         $(Q)test -e include/generated/autoconf.h -a -e $@ || (          \
 836         echo >&2;                                                       \
 837         echo >&2 "  ERROR: Kernel configuration is invalid.";           \
 838         echo >&2 "         include/generated/autoconf.h or $@ are missing.";\
 839         echo >&2 "         Run 'make oldconfig && make prepare' on kernel src to fix it.";      \
 840         echo >&2 ;                                                      \
 841         /bin/false)
 842
 843 endif # may-sync-config
 844 endif # $(dot-config)
 845
 846 KBUILD_CFLAGS   += $(call cc-option,-fno-delete-null-pointer-checks,)
 847 KBUILD_CFLAGS   += $(call cc-disable-warning,frame-address,)
 848 KBUILD_CFLAGS   += $(call cc-disable-warning, format-truncation)
 849 KBUILD_CFLAGS   += $(call cc-disable-warning, format-overflow)
 850 KBUILD_CFLAGS   += $(call cc-disable-warning, int-in-bool-context)
 851 KBUILD_CFLAGS   += $(call cc-disable-warning, address-of-packed-member)
 852
 853 ifdef CONFIG_CC_OPTIMIZE_FOR_DEBUG
 854 KBUILD_HOSTCFLAGS   := -Wall -Wstrict-prototypes -Og -g -fomit-frame-pointer \
 855                 $(HOST_LFS_CFLAGS) $(HOSTCFLAGS)
 856 # Avoid false positives -Wmaybe-uninitialized
 857 # https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78394
 858 KBUILD_HOSTCFLAGS   += -Wno-maybe-uninitialized
 859 KBUILD_HOSTCXXFLAGS := -Og -g $(HOST_LFS_CFLAGS) $(HOSTCXXFLAGS)
 860 endif
 861
 862 #
 863 # Xtensa linker script cannot be preprocessed with -ansi because of
 864 # preprocessor operations on strings that don't make C identifiers.
 865 #
 866 ifeq ($(CONFIG_XTENSA),)
 867 LDPPFLAGS       += -ansi
 868 endif
 869
 870 ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE
 871 KBUILD_CFLAGS   += -Os
 872 else
 873 KBUILD_CFLAGS   += -O2
 874 endif
 875
 876 ifdef CONFIG_CC_DISABLE_WARN_MAYBE_UNINITIALIZED
 877 KBUILD_CFLAGS   += -Wno-maybe-uninitialized
 878 endif
 879
 880 # Tell gcc to never replace conditional load with a non-conditional one
 881 KBUILD_CFLAGS   += $(call cc-option,--param=allow-store-data-races=0)
 882
 883 include scripts/Makefile.kcov
 884 include scripts/Makefile.gcc-plugins
 885 LTO_CFLAGS :=
 886 LTO_FINAL_LDFLAGS :=
 887 export LTO_CFLAGS LTO_FINAL_LDFLAGS
 888 ifeq ($(LTO_ENABLE),y)
 889         ifeq ($(cc-name),clang)
 890                 LTO_CFLAGS              += -DLTO_ENABLE -flto
 891                 LTO_FINAL_LDFLAGS       += -flto
 892
 893                 AR                      = $(shell $(CC) -print-prog-name=llvm-ar)
 894                 NM                      = $(shell $(CC) -print-prog-name=llvm-nm)
 895         else
 896                 NPROC                   := $(shell nproc 2>/dev/null || echo 1)
 897                 LTO_CFLAGS              += -DLTO_ENABLE -flto=$(NPROC)
 898                 LTO_FINAL_LDFLAGS       += -fuse-linker-plugin -flto=$(NPROC)
 899
 900                 # use plugin aware tools
 901                 AR                      = $(CROSS_COMPILE)gcc-ar
 902                 NM                      = $(CROSS_COMPILE)gcc-nm
 903         endif
 904
 905         CFLAGS_NON_EFI                  += $(LTO_CFLAGS)
 906
 907         KBUILD_CFLAGS                   += $(LTO_CFLAGS)
 908 endif
 909
 910 ifeq ($(CONFIG_STACKPROTECTOR),y)
 911 KBUILD_CFLAGS += $(call cc-option,-fstack-protector-strong)
 912 KBUILD_CFLAGS += $(call cc-option,-mstack-protector-guard=global)
 913 CFLAGS_EFI += $(call cc-option,-fno-stack-protector)
 914 else
 915 KBUILD_CFLAGS += $(call cc-option,-fno-stack-protector)
 916 endif
 917 KBUILD_CFLAGS += $(call cc-option,-fno-delete-null-pointer-checks)
 918
 919 KBUILD_CFLAGS += $(call cc-disable-warning, zero-length-bounds)
 920 KBUILD_CFLAGS += $(call cc-disable-warning, array-bounds)
 921 KBUILD_CFLAGS += $(call cc-disable-warning, stringop-overflow)
 922
 923 # Enabled with W=2, disabled by default as noisy
 924 KBUILD_CFLAGS += $(call cc-disable-warning, maybe-uninitialized)
 925
 926 # change __FILE__ to the relative path from the srctree
 927 KBUILD_CFLAGS   += $(call cc-option,-fmacro-prefix-map=$(srctree)/=)
 928
 929 KBUILD_CFLAGS   += -gdwarf-4
 930 # $(KBUILD_AFLAGS) sets -g, which causes gcc to pass a suitable -g<format>
 931 # option to the assembler.
 932 KBUILD_AFLAGS   += -gdwarf-4
 933
 934 # Report stack usage if supported
 935 # ARC tools based on GCC 7.1 has an issue with stack usage
 936 # with naked functions, see commit message for more details
 937 ifndef CONFIG_ARC
 938 ifeq ($(shell $(CONFIG_SHELL) $(srctree)/scripts/gcc-stack-usage.sh $(CC)),y)
 939         KBUILD_CFLAGS += -fstack-usage
 940 endif
 941 endif
 942
 943 KBUILD_CFLAGS += $(call cc-option,-Wno-format-nonliteral)
 944 KBUILD_CFLAGS += $(call cc-disable-warning, address-of-packed-member)
 945
 946 ifdef CONFIG_CC_IS_CLANG
 947 KBUILD_CPPFLAGS += $(call cc-option,-Qunused-arguments,)
 948 KBUILD_CFLAGS += $(call cc-disable-warning, format-invalid-specifier)
 949 KBUILD_CFLAGS += $(call cc-disable-warning, gnu)
 950 # Quiet clang warning: comparison of unsigned expression < 0 is always false
 951 KBUILD_CFLAGS += $(call cc-disable-warning, tautological-compare)
 952 # CLANG uses a _MergedGlobals as optimization, but this breaks modpost, as the
 953 # source of a reference will be _MergedGlobals and not on of the whitelisted names.
 954 # See modpost pattern 2
 955 KBUILD_CFLAGS += $(call cc-option, -mno-global-merge,)
 956 KBUILD_CFLAGS += $(call cc-option, -fcatch-undefined-behavior)
 957 KBUILD_CFLAGS += $(call cc-disable-warning, deprecated-non-prototype)
 958 else
 959
 960 # These warnings generated too much noise in a regular build.
 961 # Use make W=1 to enable them (see scripts/Makefile.extrawarn)
 962 KBUILD_CFLAGS += -Wno-unused-but-set-variable
 963 endif
 964
 965 # These warnings generated too much noise in a regular build.
 966 # Use make W=1 to enable them (see scripts/Makefile.extrawarn)
 967 KBUILD_CFLAGS += $(call cc-disable-warning, unused-but-set-variable)
 968
 969 # Prohibit date/time macros, which would make the build non-deterministic
 970 KBUILD_CFLAGS   += $(call cc-option,-Werror=date-time)
 971
 972 include scripts/Makefile.extrawarn
 973
 974 # Add user supplied CPPFLAGS, AFLAGS and CFLAGS as the last assignments
 975 KBUILD_CPPFLAGS += $(KCPPFLAGS)
 976 KBUILD_AFLAGS += $(KAFLAGS)
 977 KBUILD_CFLAGS += $(KCFLAGS)
 978
 979 KBUILD_LDFLAGS  += -z noexecstack
 980 KBUILD_LDFLAGS  += -z norelro
 981 KBUILD_LDFLAGS  += $(call ld-option,--no-warn-rwx-segments)
 982
 983 KBUILD_HOSTCFLAGS += $(if $(CONFIG_TOOLS_DEBUG),-g)
 984
 985 # Use UBOOTINCLUDE when you must reference the include/ directory.
 986 # Needed to be compatible with the O= option
 987 UBOOTINCLUDE    := \
 988         -Iinclude \
 989         $(if $(KBUILD_SRC), -I$(srctree)/include) \
 990         $(if $(CONFIG_$(XPL_)MBEDTLS_LIB), \
 991                 "-DMBEDTLS_CONFIG_FILE=\"mbedtls_def_config.h\"" \
 992                 -I$(srctree)/lib/mbedtls \
 993                 -I$(srctree)/lib/mbedtls/port \
 994                 -I$(srctree)/lib/mbedtls/external/mbedtls \
 995                 -I$(srctree)/lib/mbedtls/external/mbedtls/include) \
 996         $(if $(CONFIG_$(PHASE_)SYS_THUMB_BUILD), \
 997                 $(if $(CONFIG_HAS_THUMB2), \
 998                         $(if $(CONFIG_CPU_V7M), \
 999                                 -I$(srctree)/arch/arm/thumb1/include), \
1000                         -I$(srctree)/arch/arm/thumb1/include)) \
1001         -I$(srctree)/arch/$(ARCH)/include \
1002         -include $(srctree)/include/linux/kconfig.h \
1003         -I$(srctree)/dts/upstream/include \
1004         $(if $(CONFIG_NET_LWIP), -I$(srctree)/lib/lwip/lwip/src/include \
1005                 -I$(srctree)/lib/lwip/u-boot)
1006
1007 NOSTDINC_FLAGS += -nostdinc -isystem $(shell $(CC) -print-file-name=include)
1008
1009 # FIX ME
1010 cpp_flags := $(KBUILD_CPPFLAGS) $(PLATFORM_CPPFLAGS) $(UBOOTINCLUDE) \
1011                                                         $(NOSTDINC_FLAGS)
1012 c_flags := $(KBUILD_CFLAGS) $(cpp_flags)
1013
1014
1015 #########################################################################
1016 # U-Boot objects....order is important (i.e. start must be first)
1017
1018 HAVE_VENDOR_COMMON_LIB = $(if $(wildcard $(srctree)/board/$(VENDOR)/common/Makefile),y,n)
1019
1020 libs-$(CONFIG_API) += api/
1021 libs-$(HAVE_VENDOR_COMMON_LIB) += board/$(VENDOR)/common/
1022 libs-y += boot/
1023 libs-$(CONFIG_CMDLINE) += cmd/
1024 libs-y += common/
1025 libs-$(CONFIG_OF_EMBED) += dts/
1026 libs-y += env/
1027 libs-y += lib/
1028 libs-y += fs/
1029 libs-$(filter y,$(CONFIG_NET) $(CONFIG_NET_LWIP)) += net/
1030 libs-y += disk/
1031 libs-y += drivers/
1032 libs-$(CONFIG_SYS_FSL_DDR) += drivers/ddr/fsl/
1033 libs-$(CONFIG_SYS_FSL_MMDC) += drivers/ddr/fsl/
1034 libs-$(CONFIG_$(PHASE_)ALTERA_SDRAM) += drivers/ddr/altera/
1035 libs-y += drivers/usb/cdns3/
1036 libs-y += drivers/usb/dwc3/
1037 libs-y += drivers/usb/common/
1038 libs-y += drivers/usb/emul/
1039 libs-y += drivers/usb/eth/
1040 libs-$(CONFIG_USB_GADGET) += drivers/usb/gadget/
1041 libs-$(CONFIG_USB_GADGET) += drivers/usb/gadget/udc/
1042 libs-y += drivers/usb/host/
1043 libs-y += drivers/usb/mtu3/
1044 libs-y += drivers/usb/musb/
1045 libs-y += drivers/usb/musb-new/
1046 libs-y += drivers/usb/isp1760/
1047 libs-y += drivers/usb/phy/
1048 libs-y += drivers/usb/tcpm/
1049 libs-y += drivers/usb/ulpi/
1050 ifdef CONFIG_POST
1051 libs-y += post/
1052 endif
1053 libs-$(CONFIG_$(PHASE_)UNIT_TEST) += test/
1054
1055 libs-y += $(if $(wildcard $(srctree)/board/$(BOARDDIR)/Makefile),board/$(BOARDDIR)/)
1056
1057 libs-y := $(sort $(libs-y))
1058
1059 u-boot-dirs     := $(patsubst %/,%,$(filter %/, $(libs-y))) tools examples
1060
1061 u-boot-alldirs  := $(sort $(u-boot-dirs) $(patsubst %/,%,$(filter %/, $(libs-))))
1062
1063 libs-y          := $(patsubst %/, %/built-in.a, $(libs-y))
1064 # Not needed in U-Boot
1065 #init-y         := $(patsubst %/, %/built-in.a, $(init-y))
1066 #core-y         := $(patsubst %/, %/built-in.a, $(core-y))
1067 drivers-y       := $(patsubst %/, %/built-in.a, $(drivers-y))
1068 #net-y          := $(patsubst %/, %/built-in.a, $(net-y))
1069 libs-y1 := $(patsubst %/, %/lib.a, $(libs-y))
1070 libs-y2 := $(patsubst %/, %/built-in.a, $(filter-out %.a, $(libs-y)))
1071 #virt-y         := $(patsubst %/, %/built-in.a, $(virt-y))
1072
1073 u-boot-init := $(head-y)
1074 u-boot-main := $(libs-y)
1075
1076
1077 # Add GCC lib
1078 ifeq ($(CONFIG_USE_PRIVATE_LIBGCC),y)
1079 PLATFORM_LIBGCC = arch/$(ARCH)/lib/lib.a
1080 else
1081 ifndef CONFIG_CC_IS_CLANG
1082 PLATFORM_LIBGCC := -L $(shell dirname `$(CC) $(c_flags) -print-libgcc-file-name`) -lgcc
1083 endif
1084 endif
1085 PLATFORM_LIBS += $(PLATFORM_LIBGCC)
1086
1087 ifdef CONFIG_CC_COVERAGE
1088 KBUILD_CFLAGS += --coverage
1089 PLATFORM_LIBGCC += -lgcov
1090 endif
1091
1092 export PLATFORM_LIBS
1093 export PLATFORM_LIBGCC
1094
1095 # Special flags for CPP when processing the linker script.
1096 # Pass the version down so we can handle backwards compatibility
1097 # on the fly.
1098 LDPPFLAGS += \
1099         -include $(srctree)/include/u-boot/u-boot.lds.h \
1100         -DCPUDIR=$(CPUDIR) \
1101         $(shell $(LD) --version | \
1102           sed -ne 's/GNU ld version \([0-9][0-9]*\)\.\([0-9][0-9]*\).*/-DLD_MAJOR=\1 -DLD_MINOR=\2/p')
1103
1104 #########################################################################
1105 #########################################################################
1106
1107 ifneq ($(CONFIG_BOARD_SIZE_LIMIT),)
1108 BOARD_SIZE_CHECK= @ $(call size_check,$@,$(CONFIG_BOARD_SIZE_LIMIT))
1109 else
1110 BOARD_SIZE_CHECK =
1111 endif
1112
1113 ifneq ($(CONFIG_SPL_SIZE_LIMIT),0x0)
1114 SPL_SIZE_CHECK = @$(call size_check,$@,$$(tools/spl_size_limit))
1115 else
1116 SPL_SIZE_CHECK =
1117 endif
1118
1119 ifneq ($(CONFIG_TPL_SIZE_LIMIT),0x0)
1120 TPL_SIZE_CHECK = @$(call size_check,$@,$(CONFIG_TPL_SIZE_LIMIT))
1121 else
1122 TPL_SIZE_CHECK =
1123 endif
1124
1125 ifneq ($(CONFIG_VPL_SIZE_LIMIT),0x0)
1126 VPL_SIZE_CHECK = @$(call size_check,$@,$(CONFIG_VPL_SIZE_LIMIT))
1127 else
1128 VPL_SIZE_CHECK =
1129 endif
1130
1131 # Statically apply RELA-style relocations (currently arm64 only)
1132 # This is useful for arm64 where static relocation needs to be performed on
1133 # the raw binary, but certain simulators only accept an ELF file (but don't
1134 # do the relocation).
1135 ifneq ($(CONFIG_STATIC_RELA),)
1136 # $(2) is u-boot ELF, $(3) is u-boot bin, $(4) is text base
1137 quiet_cmd_static_rela = RELOC   $@
1138 cmd_static_rela = \
1139         tools/relocate-rela $(3) $(2)
1140 else
1141 quiet_cmd_static_rela =
1142 cmd_static_rela =
1143 endif
1144
1145 # Always append INPUTS so that arch config.mk's can add custom ones
1146 INPUTS-y += u-boot.srec u-boot.bin u-boot.sym System.map binary_size_check
1147
1148 ifeq ($(CONFIG_SPL_FSL_PBL),y)
1149 INPUTS-$(CONFIG_RAMBOOT_PBL) += u-boot-with-spl-pbl.bin
1150 else
1151 ifneq ($(CONFIG_NXP_ESBC), y)
1152 # For Secure Boot The Image needs to be signed and Header must also
1153 # be included. So The image has to be built explicitly
1154 INPUTS-$(CONFIG_RAMBOOT_PBL) += u-boot.pbl
1155 endif
1156 endif
1157 INPUTS-$(CONFIG_SPL) += spl/u-boot-spl.bin
1158 ifeq ($(CONFIG_MX6)$(CONFIG_IMX_HAB), yy)
1159 INPUTS-$(CONFIG_SPL_FRAMEWORK) += u-boot-ivt.img
1160 else
1161 ifeq ($(CONFIG_MX7)$(CONFIG_IMX_HAB), yy)
1162 INPUTS-$(CONFIG_SPL_FRAMEWORK) += u-boot-ivt.img
1163 else
1164 INPUTS-$(CONFIG_SPL_FRAMEWORK) += u-boot.img
1165 endif
1166 endif
1167 INPUTS-$(CONFIG_TPL) += tpl/u-boot-tpl.bin
1168 INPUTS-$(CONFIG_VPL) += vpl/u-boot-vpl.bin
1169
1170 # Allow omitting the .dtb output if it is not normally used
1171 INPUTS-$(CONFIG_OF_SEPARATE) += $(if $(CONFIG_OF_OMIT_DTB),dts/dt.dtb,u-boot.dtb)
1172 ifeq ($(CONFIG_SPL_FRAMEWORK),y)
1173 INPUTS-$(CONFIG_OF_SEPARATE) += u-boot-dtb.img
1174 endif
1175 INPUTS-$(CONFIG_SANDBOX) += u-boot.dtb
1176 ifneq ($(CONFIG_SPL_TARGET),)
1177 INPUTS-$(CONFIG_SPL) += $(CONFIG_SPL_TARGET:"%"=%)
1178 endif
1179 INPUTS-$(CONFIG_REMAKE_ELF) += u-boot.elf
1180 INPUTS-$(CONFIG_EFI_APP) += u-boot-app.efi
1181 INPUTS-$(CONFIG_EFI_STUB) += u-boot-payload.efi
1182
1183 # Generate this input file for binman
1184 ifeq ($(CONFIG_SPL),)
1185 ifneq ($(patsubst "%",%,$(CONFIG_MTK_BROM_HEADER_INFO)),)
1186 INPUTS-$(CONFIG_ARCH_MEDIATEK) += u-boot-mtk.bin
1187 endif
1188 endif
1189
1190 ifdef CONFIG_FUNCTION_TRACER
1191 ifdef CONFIG_FTRACE_MCOUNT_RECORD
1192   # gcc 5 supports generating the mcount tables directly
1193   ifeq ($(call cc-option-yn,-mrecord-mcount),y)
1194     CC_FLAGS_FTRACE     += -mrecord-mcount
1195     export CC_USING_RECORD_MCOUNT := 1
1196   endif
1197   ifdef CONFIG_HAVE_NOP_MCOUNT
1198     ifeq ($(call cc-option-yn, -mnop-mcount),y)
1199       CC_FLAGS_FTRACE   += -mnop-mcount
1200       CC_FLAGS_USING    += -DCC_USING_NOP_MCOUNT
1201     endif
1202   endif
1203 endif
1204 ifdef CONFIG_HAVE_FENTRY
1205   ifeq ($(call cc-option-yn, -mfentry),y)
1206     CC_FLAGS_FTRACE     += -mfentry
1207     CC_FLAGS_USING      += -DCC_USING_FENTRY
1208   endif
1209 endif
1210 export CC_FLAGS_FTRACE
1211 KBUILD_CFLAGS   += $(CC_FLAGS_FTRACE) $(CC_FLAGS_USING)
1212 KBUILD_AFLAGS   += $(CC_FLAGS_USING)
1213 ifdef CONFIG_DYNAMIC_FTRACE
1214         ifdef CONFIG_HAVE_C_RECORDMCOUNT
1215                 BUILD_C_RECORDMCOUNT := y
1216                 export BUILD_C_RECORDMCOUNT
1217         endif
1218 endif
1219 endif
1220
1221 # Add optional build target if defined in board/cpu/soc headers
1222 ifneq ($(CONFIG_BUILD_TARGET),)
1223 INPUTS-y += $(CONFIG_BUILD_TARGET:"%"=%)
1224 endif
1225
1226 ifeq ($(CONFIG_INIT_SP_RELATIVE)$(CONFIG_OF_SEPARATE),yy)
1227 INPUTS-y += init_sp_bss_offset_check
1228 endif
1229
1230 ifeq ($(CONFIG_ARCH_ROCKCHIP)_$(CONFIG_SPL_FRAMEWORK),y_)
1231 INPUTS-y += u-boot.img
1232 endif
1233
1234 INPUTS-$(CONFIG_X86) += u-boot-x86-start16.bin u-boot-x86-reset16.bin \
1235         $(if $(CONFIG_SPL_X86_16BIT_INIT),spl/u-boot-spl.bin) \
1236         $(if $(CONFIG_TPL_X86_16BIT_INIT),tpl/u-boot-tpl.bin)
1237
1238 LDFLAGS_u-boot += $(LDFLAGS_FINAL)
1239
1240 # Avoid 'Not enough room for program headers' error on binutils 2.28 onwards.
1241 LDFLAGS_u-boot += $(call ld-option, --no-dynamic-linker)
1242
1243 # ld.lld support
1244 LDFLAGS_u-boot += -z notext $(call ld-option,--apply-dynamic-relocs)
1245
1246 LDFLAGS_u-boot += --build-id=none
1247
1248 ifeq ($(CONFIG_ARC)$(CONFIG_NIOS2)$(CONFIG_X86)$(CONFIG_XTENSA),)
1249 LDFLAGS_u-boot += -Ttext $(CONFIG_TEXT_BASE)
1250 endif
1251
1252 # make the checker run with the right architecture
1253 CHECKFLAGS += --arch=$(ARCH)
1254
1255 # insure the checker run with the right endianness
1256 CHECKFLAGS += $(if $(CONFIG_SYS_BIG_ENDIAN),-mbig-endian,-mlittle-endian)
1257
1258 # the checker needs the correct machine size
1259 CHECKFLAGS += $(if $(CONFIG_64BIT),-m64,-m32)
1260
1261 # Normally we fill empty space with 0xff
1262 quiet_cmd_objcopy = OBJCOPY $@
1263 cmd_objcopy = $(OBJCOPY) --gap-fill=0xff $(OBJCOPYFLAGS) \
1264         $(OBJCOPYFLAGS_$(@F)) $< $@
1265
1266 # disable pointer signed / unsigned warnings in gcc 4.0
1267 KBUILD_CFLAGS += -Wno-pointer-sign
1268
1269 # disable stringop warnings in gcc 8+
1270 KBUILD_CFLAGS += $(call cc-disable-warning, stringop-truncation)
1271
1272 # disable invalid "can't wrap" optimizations for signed / pointers
1273 KBUILD_CFLAGS   += $(call cc-option,-fno-strict-overflow)
1274
1275 # Provide a version which does not do this, for use by EFI and hex/srec
1276 quiet_cmd_zobjcopy = OBJCOPY $@
1277 cmd_zobjcopy = $(OBJCOPY) $(OBJCOPYFLAGS) $(OBJCOPYFLAGS_$(@F)) $< $@
1278
1279 quiet_cmd_efipayload = OBJCOPY $@
1280 cmd_efipayload = $(OBJCOPY) -I binary -O $(EFIPAYLOAD_BFDTARGET) -B $(EFIPAYLOAD_BFDARCH) $< $@
1281
1282 MKIMAGEOUTPUT ?= /dev/null
1283
1284 quiet_cmd_mkimage = MKIMAGE $@
1285 cmd_mkimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -d $< $@ \
1286         >$(MKIMAGEOUTPUT) $(if $(KBUILD_VERBOSE:0=), && cat $(MKIMAGEOUTPUT))
1287
1288 quiet_cmd_mkfitimage = MKIMAGE $@
1289 cmd_mkfitimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) \
1290         -f $(U_BOOT_ITS) -p $(CONFIG_FIT_EXTERNAL_OFFSET) $@ \
1291         >$(MKIMAGEOUTPUT) $(if $(KBUILD_VERBOSE:0=), && cat $(MKIMAGEOUTPUT))
1292
1293 quiet_cmd_cat = CAT     $@
1294 cmd_cat = cat $(filter-out $(PHONY), $^) > $@
1295
1296 append = cat $(filter-out $< $(PHONY), $^) >> $@
1297
1298 quiet_cmd_pad_cat = CAT     $@
1299 cmd_pad_cat = $(cmd_objcopy) && $(append) || { rm -f $@; false; }
1300
1301 quiet_cmd_lzma = LZMA    $@
1302 cmd_lzma = lzma -c -z -k -9 $< > $@
1303
1304 cfg: u-boot.cfg
1305
1306 quiet_cmd_ofcheck = OFCHK   $2
1307 cmd_ofcheck = $(srctree)/scripts/check-of.sh $2 \
1308                 $(srctree)/scripts/of_allowlist.txt
1309
1310 # Concat the value of all the CONFIGs (result is 'y' or 'yy', etc. )
1311 got = $(foreach cfg,$(1),$($(cfg)))
1312
1313 # expected value 'y for each one
1314 expect = $(foreach cfg,$(1),y)
1315
1316 # Show a deprecation message
1317 # Args:
1318 # 1: List of options to migrate to (e.g. "CONFIG_DM_MMC CONFIG_BLK")
1319 # 2: Name of component (e.g . "Ethernet drivers")
1320 # 3: Release deadline (e.g. "v202.07")
1321 # 4: Condition to require before checking (e.g. "$(CONFIG_NET)")
1322 # Note: Script avoids bash construct, hence the strange double 'if'
1323 # (patches welcome!)
1324 define deprecated
1325         @if [ -n "$(strip $(4))" ]; then if [ "$(got)" != "$(expect)" ]; then \
1326                 echo >&2 "===================== WARNING ======================"; \
1327                 echo >&2 "This board does not use $(firstword $(1)) (Driver Model"; \
1328                 echo >&2 "for $(2)). Please update the board to use"; \
1329                 echo >&2 "$(firstword $(1)) before the $(3) release. Failure to"; \
1330                 echo >&2 "update by the deadline may result in board removal."; \
1331                 echo >&2 "See doc/develop/driver-model/migration.rst for more info."; \
1332                 echo >&2 "===================================================="; \
1333         fi; fi
1334
1335 endef
1336
1337 # Timestamp file to make sure that binman always runs
1338 .binman_stamp: $(INPUTS-y) FORCE
1339 ifeq ($(CONFIG_BINMAN),y)
1340         $(call if_changed,binman)
1341 endif
1342         @touch $@
1343
1344 all: .binman_stamp
1345
1346 ifeq ($(CONFIG_DEPRECATED),y)
1347         $(warning "You have deprecated configuration options enabled in your .config! Please check your configuration.")
1348 endif
1349 ifeq ($(CONFIG_OF_EMBED)$(CONFIG_EFI_APP),y)
1350         @echo >&2 "===================== WARNING ======================"
1351         @echo >&2 "CONFIG_OF_EMBED is enabled. This option should only"
1352         @echo >&2 "be used for debugging purposes. Please use"
1353         @echo >&2 "CONFIG_OF_SEPARATE for boards in mainline."
1354         @echo >&2 "See doc/develop/devicetree/control.rst for more info."
1355         @echo >&2 "===================================================="
1356 endif
1357         $(call deprecated,CONFIG_WDT,DM watchdog,v2019.10,\
1358                 $(CONFIG_WATCHDOG)$(CONFIG_HW_WATCHDOG))
1359         $(call deprecated,CONFIG_DM_I2C,I2C drivers,v2022.04,$(CONFIG_SYS_I2C_LEGACY))
1360         @# CFG_SYS_TIMER_RATE has brackets in it for some boards which
1361         @# confuses this rule. Use if() to send just a single character which
1362         @# is enable to tell 'deprecated' that one of these symbols exists
1363         $(call deprecated,CONFIG_TIMER,Timer drivers,v2023.01,$(if $(strip $(CFG_SYS_TIMER_RATE)$(CFG_SYS_TIMER_COUNTER)),x))
1364         $(call deprecated,CONFIG_DM_SERIAL,Serial drivers,v2023.04,$(CONFIG_SERIAL))
1365         @# Check that this build does not override OF_HAS_PRIOR_STAGE by
1366         @# disabling OF_BOARD.
1367         $(call cmd,ofcheck,$(KCONFIG_CONFIG))
1368
1369 PHONY += dtbs dtbs_check
1370 dtbs: dts/dt.dtb
1371         @:
1372 dts/dt.dtb: dtbs_prepare u-boot
1373         $(Q)$(MAKE) $(build)=dts dtbs
1374
1375 dtbs_prepare: prepare3
1376
1377 ifneq ($(filter dtbs_check, $(MAKECMDGOALS)),)
1378 export CHECK_DTBS=y
1379 endif
1380
1381 ifneq ($(CHECK_DTBS),)
1382 dtbs_prepare: dt_binding_check
1383 endif
1384
1385 dtbs_check: dt_binding_check dtbs
1386
1387 DT_BINDING_DIR := dts/upstream/Bindings
1388 dt_binding_check: scripts_dtc
1389         $(Q)$(MAKE) $(build)=$(DT_BINDING_DIR) $(DT_BINDING_DIR)/processed-schema.json
1390
1391 quiet_cmd_copy = COPY    $@
1392       cmd_copy = cp $< $@
1393
1394 ifeq ($(CONFIG_OF_UPSTREAM),y)
1395 ifeq ($(CONFIG_ARM64),y)
1396 dt_dir := dts/upstream/src/arm64
1397 else
1398 dt_dir := dts/upstream/src/$(ARCH)
1399 endif
1400 else
1401 dt_dir := arch/$(ARCH)/dts
1402 endif
1403
1404 ifeq ($(CONFIG_MULTI_DTB_FIT),y)
1405
1406 ifeq ($(CONFIG_MULTI_DTB_FIT_LZO),y)
1407 FINAL_DTB_CONTAINER = fit-dtb.blob.lzo
1408 else ifeq ($(CONFIG_MULTI_DTB_FIT_GZIP),y)
1409 FINAL_DTB_CONTAINER = fit-dtb.blob.gz
1410 else
1411 FINAL_DTB_CONTAINER = fit-dtb.blob
1412 endif
1413
1414 fit-dtb.blob.gz: fit-dtb.blob
1415         @gzip -nkf9 $< > $@
1416
1417 fit-dtb.blob.lzo: fit-dtb.blob
1418         @lzop -f9 $< > $@
1419
1420 fit-dtb.blob: dts/dt.dtb FORCE
1421         $(call if_changed,mkimage)
1422 ifneq ($(SOURCE_DATE_EPOCH),)
1423         touch -d @$(SOURCE_DATE_EPOCH) fit-dtb.blob
1424         chmod 0600 fit-dtb.blob
1425 endif
1426
1427 MKIMAGEFLAGS_fit-dtb.blob = -f auto -A $(ARCH) -T firmware -C none -O u-boot \
1428         -a 0 -e 0 -E \
1429         $(patsubst %,-b $(dt_dir)/%.dtb,$(subst ",,$(CONFIG_OF_LIST))) -d /dev/null
1430
1431 MKIMAGEFLAGS_fit-dtb.blob += -B 0x8
1432
1433 ifneq ($(EXT_DTB),)
1434 u-boot-fit-dtb.bin: u-boot-nodtb.bin $(EXT_DTB)
1435                 $(call if_changed,cat)
1436 else
1437 u-boot-fit-dtb.bin: u-boot-nodtb.bin $(FINAL_DTB_CONTAINER)
1438         $(call if_changed,cat)
1439 endif
1440
1441 u-boot.bin: u-boot-fit-dtb.bin FORCE
1442         $(call if_changed,copy)
1443
1444 ifneq ($(CONFIG_MPC85XX_HAVE_RESET_VECTOR)$(CONFIG_OF_SEPARATE),yy)
1445 u-boot-dtb.bin: u-boot-nodtb.bin dts/dt.dtb FORCE
1446         $(call if_changed,cat)
1447 endif
1448
1449 else ifeq ($(CONFIG_OF_SEPARATE).$(CONFIG_OF_OMIT_DTB),y.)
1450
1451 ifneq ($(CONFIG_MPC85XX_HAVE_RESET_VECTOR)$(CONFIG_OF_SEPARATE),yy)
1452 u-boot-dtb.bin: u-boot-nodtb.bin dts/dt.dtb FORCE
1453         $(call if_changed,cat)
1454 endif
1455
1456 u-boot.bin: u-boot-dtb.bin FORCE
1457         $(call if_changed,copy)
1458
1459 else
1460 u-boot.bin: u-boot-nodtb.bin FORCE
1461         $(call if_changed,copy)
1462 endif
1463
1464 # we call Makefile in arch/arm/mach-imx which
1465 # has targets which are dependent on targets defined
1466 # here. make could not resolve them and we must ensure
1467 # that they are finished before calling imx targets
1468 ifeq ($(CONFIG_MULTI_DTB_FIT),y)
1469 IMX_DEPS = u-boot-fit-dtb.bin
1470 endif
1471
1472 %.imx: $(IMX_DEPS) %.bin
1473         $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@
1474         $(BOARD_SIZE_CHECK)
1475
1476 %.vyb: %.imx
1477         $(Q)$(MAKE) $(build)=arch/arm/cpu/armv7/vf610 $@
1478
1479 quiet_cmd_copy = COPY    $@
1480       cmd_copy = cp $< $@
1481
1482 u-boot.dtb: dts/dt.dtb
1483         $(call cmd,copy)
1484
1485 OBJCOPYFLAGS_u-boot.hex := -O ihex
1486
1487 OBJCOPYFLAGS_u-boot.srec := -O srec
1488
1489 u-boot.hex u-boot.srec: u-boot FORCE
1490         $(call if_changed,zobjcopy)
1491
1492 OBJCOPYFLAGS_u-boot-elf.srec := $(OBJCOPYFLAGS_u-boot.srec)
1493
1494 ifeq ($(CONFIG_POSITION_INDEPENDENT)$(CONFIG_RCAR_GEN3),yy)
1495 # The flash_writer tool and previous recovery tools
1496 # require the SREC load address to be 0x5000_0000 .
1497 # The PIE U-Boot build sets the address to 0x0, so
1498 # override the address back to make u-boot-elf.srec
1499 # compatible with the recovery tools.
1500 OBJCOPYFLAGS_u-boot-elf.srec += --change-addresses=0x50000000
1501 endif
1502
1503 u-boot-elf.srec: u-boot.elf FORCE
1504         $(call if_changed,zobjcopy)
1505
1506 OBJCOPYFLAGS_u-boot-spl.srec = $(OBJCOPYFLAGS_u-boot.srec)
1507
1508 spl/u-boot-spl.srec: spl/u-boot-spl FORCE
1509         $(call if_changed,zobjcopy)
1510
1511 %.scif: %.srec
1512         $(Q)$(MAKE) $(build)=arch/arm/mach-renesas $@
1513
1514 OBJCOPYFLAGS_u-boot-nodtb.bin := -O binary \
1515                 $(if $(CONFIG_X86_16BIT_INIT),-R .start16 -R .resetvec) \
1516                 $(if $(CONFIG_MPC85XX_HAVE_RESET_VECTOR),$(if $(CONFIG_OF_SEPARATE),-R .bootpg -R .resetvec))
1517
1518 binary_size_check: u-boot-nodtb.bin FORCE
1519         @file_size=$(shell wc -c u-boot-nodtb.bin | awk '{ print $$1 }') ; \
1520         map_size=$(shell cat u-boot.map | \
1521                 awk ' \
1522                         /_image_copy_start/ { start = $$1 } \
1523                         /_image_binary_end/ { end = $$1 } \
1524                         END { \
1525                                 if (start != "" && end != "") \
1526                                         print end " " start; \
1527                         }' \
1528                 | sh -c 'read end start && echo $$((end - start))'); \
1529         if [ -n "$$map_size" ]; then \
1530                 if test $$map_size -ne $$file_size; then \
1531                         echo "u-boot.map shows a binary size of $$map_size" >&2 ; \
1532                         echo "  but u-boot-nodtb.bin shows $$file_size" >&2 ; \
1533                         exit 1; \
1534                 fi; \
1535         fi
1536
1537 ifeq ($(CONFIG_INIT_SP_RELATIVE)$(CONFIG_OF_SEPARATE),yy)
1538 ifneq ($(CONFIG_SYS_MALLOC_F),)
1539 subtract_sys_malloc_f_len = space=$$(($${space} - $(CONFIG_SYS_MALLOC_F_LEN)))
1540 else
1541 subtract_sys_malloc_f_len = true
1542 endif
1543 # The 1/4 margin below is somewhat arbitrary. The likely initial SP usage is
1544 # so low that the DTB could probably use 90%+ of the available space, for
1545 # current values of CONFIG_SYS_INIT_SP_BSS_OFFSET at least. However, let's be
1546 # safe for now and tweak this later if space becomes tight.
1547 # A rejected alternative would be to check that some absolute minimum stack
1548 # space was available. However, since CONFIG_SYS_INIT_SP_BSS_OFFSET is
1549 # deliberately build-specific, to take account of build-to-build stack usage
1550 # differences due to different feature sets, there is no common absolute value
1551 # to check against.
1552 init_sp_bss_offset_check: u-boot.dtb FORCE
1553         @dtb_size=$(shell wc -c u-boot.dtb | awk '{print $$1}') ; \
1554         space=$(CONFIG_SYS_INIT_SP_BSS_OFFSET) ; \
1555         $(subtract_sys_malloc_f_len) ; \
1556         quarter_space=$$(($${space} / 4)) ; \
1557         if [ $${dtb_size} -gt $${quarter_space} ]; then \
1558                 echo "u-boot.dtb is larger than 1 quarter of " >&2 ; \
1559                 echo "(CONFIG_SYS_INIT_SP_BSS_OFFSET - CONFIG_SYS_MALLOC_F_LEN)" >&2 ; \
1560                 exit 1 ; \
1561         fi
1562 endif
1563
1564 shell_cmd = { $(call echo-cmd,$(1)) $(cmd_$(1)); }
1565
1566 quiet_cmd_objcopy_uboot = OBJCOPY $@
1567 ifdef cmd_static_rela
1568 cmd_objcopy_uboot = $(cmd_objcopy) && $(call shell_cmd,static_rela,$<,$@,$(CONFIG_TEXT_BASE)) || { rm -f $@; false; }
1569 else
1570 cmd_objcopy_uboot = $(cmd_objcopy)
1571 endif
1572
1573 u-boot-nodtb.bin: u-boot FORCE
1574         $(call if_changed,objcopy_uboot)
1575         $(BOARD_SIZE_CHECK)
1576
1577 u-boot.ldr:     u-boot
1578                 $(LDR) -T $(CONFIG_LDR_CPU) -c $@ $< $(LDR_FLAGS)
1579                 $(BOARD_SIZE_CHECK)
1580
1581 # binman
1582 # ---------------------------------------------------------------------------
1583 # Use 'make BINMAN_DEBUG=1' to enable debugging
1584 # Use 'make BINMAN_VERBOSE=3' to set vebosity level
1585
1586 ifneq ($(EXT_DTB),)
1587 ext_dtb_list := $(basename $(notdir $(EXT_DTB)))
1588 default_dt := $(firstword $(ext_dtb_list))
1589 of_list := "$(ext_dtb_list)"
1590 of_list_dirs := $(dir $(EXT_DTB)) $(dt_dir)
1591 else
1592 of_list := $(CONFIG_OF_LIST)
1593 of_list_dirs := $(dt_dir)
1594 default_dt := $(if $(DEVICE_TREE),$(DEVICE_TREE),$(CONFIG_DEFAULT_DEVICE_TREE))
1595 endif
1596
1597 ifneq ($(CONFIG_OF_UPSTREAM_INCLUDE_LOCAL_FALLBACK_DTBOS),)
1598 of_list_dirs += arch/$(ARCH)/dts
1599 endif
1600
1601 binman_dtb := $(shell echo $(CONFIG_BINMAN_DTB))
1602 ifeq ($(strip $(binman_dtb)),)
1603 ifeq ($(CONFIG_OF_EMBED),y)
1604 binman_dtb = ./dts/dt.dtb
1605 else
1606 binman_dtb = ./u-boot.dtb
1607 endif
1608 endif
1609
1610 quiet_cmd_binman = BINMAN  $@
1611 cmd_binman = $(srctree)/tools/binman/binman $(if $(BINMAN_DEBUG),-D) \
1612                 $(foreach f,$(BINMAN_TOOLPATHS),--toolpath $(f)) \
1613                 --toolpath $(objtree)/tools \
1614                 $(if $(BINMAN_VERBOSE),-v$(BINMAN_VERBOSE)) \
1615                 build -u -d $(binman_dtb) -O . -m \
1616                 --allow-missing --fake-ext-blobs \
1617                 $(if $(BINMAN_ALLOW_MISSING),--ignore-missing) \
1618                 -I . -I $(srctree) -I $(srctree)/board/$(BOARDDIR) \
1619                 $(foreach f,$(of_list_dirs),-I $(f)) -a of-list=$(of_list) \
1620                 $(foreach f,$(BINMAN_INDIRS),-I $(f)) \
1621                 -a atf-bl1-path=${BL1} \
1622                 -a atf-bl31-path=${BL31} \
1623                 -a tee-os-path=${TEE} \
1624                 -a ti-dm-path=${TI_DM} \
1625                 -a opensbi-path=${OPENSBI} \
1626                 -a default-dt=$(default_dt) \
1627                 -a scp-path=$(SCP) \
1628                 -a rockchip-tpl-path=$(ROCKCHIP_TPL) \
1629                 -a spl-bss-pad=$(if $(CONFIG_SPL_SEPARATE_BSS),,1) \
1630                 -a tpl-bss-pad=$(if $(CONFIG_TPL_SEPARATE_BSS),,1) \
1631                 -a vpl-bss-pad=$(if $(CONFIG_VPL_SEPARATE_BSS),,1) \
1632                 -a spl-dtb=$(CONFIG_SPL_OF_REAL) \
1633                 -a tpl-dtb=$(CONFIG_TPL_OF_REAL) \
1634                 -a vpl-dtb=$(CONFIG_VPL_OF_REAL) \
1635                 -a pre-load-key-path=${PRE_LOAD_KEY_PATH} \
1636                 -a of-spl-remove-props=$(CONFIG_OF_SPL_REMOVE_PROPS) \
1637                 $(BINMAN_$(@F))
1638
1639 OBJCOPYFLAGS_u-boot.ldr.hex := -I binary -O ihex
1640
1641 OBJCOPYFLAGS_u-boot.ldr.srec := -I binary -O srec
1642
1643 u-boot.ldr.hex u-boot.ldr.srec: u-boot.ldr FORCE
1644         $(call if_changed,zobjcopy)
1645
1646 ifdef CONFIG_SPL_LOAD_FIT
1647 MKIMAGEFLAGS_u-boot.img = -f auto -A $(ARCH) -T firmware -C none -O u-boot \
1648         -a $(CONFIG_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \
1649         -p $(CONFIG_FIT_EXTERNAL_OFFSET) \
1650         -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board" -E \
1651         $(patsubst %,-b $(dt_dir)/%.dtb,$(subst ",,$(DEVICE_TREE))) \
1652         $(patsubst %,-b $(dt_dir)/%.dtb,$(subst ",,$(CONFIG_OF_LIST))) \
1653         $(patsubst %,-b $(dt_dir)/%.dtbo,$(subst ",,$(CONFIG_OF_OVERLAY_LIST)))
1654 else
1655 MKIMAGEFLAGS_u-boot.img = -A $(ARCH) -T firmware -C none -O u-boot \
1656         -a $(CONFIG_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \
1657         -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board"
1658 MKIMAGEFLAGS_u-boot-ivt.img = -A $(ARCH) -T firmware_ivt -C none -O u-boot \
1659         -a $(CONFIG_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \
1660         -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board"
1661 u-boot-ivt.img: MKIMAGEOUTPUT = u-boot-ivt.img.log
1662 endif
1663
1664 MKIMAGEFLAGS_u-boot-dtb.img = $(MKIMAGEFLAGS_u-boot.img)
1665
1666 # Some boards have the kwbimage.cfg file written in advance, while some
1667 # other boards generate it on the fly during the build in the build tree.
1668 # Let's check if the file exists in the build tree first, otherwise we
1669 # fall back to use the one in the source tree.
1670 KWD_CONFIG_FILE = $(shell \
1671         if [ -f $(objtree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%) ]; then \
1672                 echo -n $(objtree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%); \
1673         else \
1674                 echo -n $(srctree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%); \
1675         fi)
1676
1677 MKIMAGEFLAGS_u-boot.kwb = -n $(KWD_CONFIG_FILE) \
1678         -T kwbimage -a $(CONFIG_TEXT_BASE) -e $(CONFIG_TEXT_BASE)
1679
1680 MKIMAGEFLAGS_u-boot-with-spl.kwb = -n $(KWD_CONFIG_FILE) \
1681         -T kwbimage -a $(CONFIG_TEXT_BASE) -e $(CONFIG_TEXT_BASE) \
1682         $(if $(KEYDIR),-k $(KEYDIR))
1683
1684 MKIMAGEFLAGS_u-boot.pbl = -n $(srctree)/$(CONFIG_SYS_FSL_PBL_RCW:"%"=%) \
1685                 -R $(srctree)/$(CONFIG_SYS_FSL_PBL_PBI:"%"=%) -A $(ARCH) -T pblimage
1686
1687 UBOOT_BIN := u-boot.bin
1688
1689 MKIMAGEFLAGS_u-boot-lzma.img = -A $(ARCH) -T standalone -C lzma -O u-boot \
1690         -a $(CONFIG_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \
1691         -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board"
1692
1693 u-boot.bin.lzma: u-boot.bin FORCE
1694         $(call if_changed,lzma)
1695
1696 u-boot-lzma.img: u-boot.bin.lzma FORCE
1697         $(call if_changed,mkimage)
1698
1699 fit_image := $(if $(CONFIG_SANDBOX_VPL),u-boot,u-boot-nodtb.bin)
1700
1701 u-boot-dtb.img u-boot.img u-boot.kwb u-boot.pbl u-boot-ivt.img: \
1702                 $(if $(CONFIG_SPL_LOAD_FIT),$(fit_image) \
1703                         $(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_SANDBOX),dts/dt.dtb) \
1704                 ,$(UBOOT_BIN)) FORCE
1705         $(call if_changed,mkimage)
1706         $(BOARD_SIZE_CHECK)
1707
1708 ifeq ($(CONFIG_SPL_LOAD_FIT_FULL),y)
1709 MKIMAGEFLAGS_u-boot.itb =
1710 else
1711 MKIMAGEFLAGS_u-boot.itb = -E
1712 endif
1713 MKIMAGEFLAGS_u-boot.itb += -B 0x8
1714
1715 ifdef U_BOOT_ITS
1716 u-boot.itb: u-boot-nodtb.bin \
1717                 $(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_SANDBOX),dts/dt.dtb) \
1718                 $(if $(CONFIG_MULTI_DTB_FIT),$(FINAL_DTB_CONTAINER)) \
1719                 $(U_BOOT_ITS) FORCE
1720         $(call if_changed,mkfitimage)
1721         $(BOARD_SIZE_CHECK)
1722 endif
1723
1724 u-boot-with-spl.kwb: u-boot.bin spl/u-boot-spl.bin FORCE
1725         $(call if_changed,mkimage)
1726         $(BOARD_SIZE_CHECK)
1727
1728 u-boot.dis:     u-boot
1729                 $(OBJDUMP) -d $< > $@
1730
1731 ifneq ($(CONFIG_SPL_PAYLOAD),)
1732 SPL_PAYLOAD := $(CONFIG_SPL_PAYLOAD:"%"=%)
1733 else
1734 SPL_PAYLOAD := u-boot.bin
1735 endif
1736
1737 SPL_IMAGE := $(CONFIG_SPL_IMAGE:"%"=%)
1738
1739 OBJCOPYFLAGS_u-boot-with-spl.bin = -I binary -O binary \
1740                                    --pad-to=$(CONFIG_SPL_PAD_TO)
1741 u-boot-with-spl.bin: $(SPL_IMAGE) $(SPL_PAYLOAD) FORCE
1742         $(call if_changed,pad_cat)
1743
1744 ifeq ($(CONFIG_ARCH_LPC32XX)$(CONFIG_SPL),yy)
1745 MKIMAGEFLAGS_lpc32xx-spl.img = -T lpc32xximage -a $(CONFIG_SPL_TEXT_BASE)
1746
1747 lpc32xx-spl.img: spl/u-boot-spl.bin FORCE
1748         $(call if_changed,mkimage)
1749
1750 OBJCOPYFLAGS_lpc32xx-boot-0.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO)
1751
1752 lpc32xx-boot-0.bin: lpc32xx-spl.img FORCE
1753         $(call if_changed,objcopy)
1754
1755 OBJCOPYFLAGS_lpc32xx-boot-1.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO)
1756
1757 lpc32xx-boot-1.bin: lpc32xx-spl.img FORCE
1758         $(call if_changed,objcopy)
1759
1760 lpc32xx-full.bin: lpc32xx-boot-0.bin lpc32xx-boot-1.bin u-boot.img FORCE
1761         $(call if_changed,cat)
1762
1763 endif
1764
1765 OBJCOPYFLAGS_u-boot-with-tpl.bin = -I binary -O binary \
1766                                    --pad-to=$(CONFIG_TPL_PAD_TO)
1767 tpl/u-boot-with-tpl.bin: tpl/u-boot-tpl.bin u-boot.bin FORCE
1768         $(call if_changed,pad_cat)
1769
1770 SPL: spl/u-boot-spl.bin FORCE
1771         $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@
1772
1773 #ifeq ($(CONFIG_ARCH_IMX8M)$(CONFIG_ARCH_IMX8), y)
1774 ifeq ($(CONFIG_SPL_LOAD_IMX_CONTAINER), y)
1775 u-boot.cnt: u-boot.bin FORCE
1776         $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@
1777
1778 flash.bin: spl/u-boot-spl.bin u-boot.cnt FORCE
1779         $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@
1780 else
1781 ifeq ($(CONFIG_BINMAN),y)
1782 flash.bin: spl/u-boot-spl.bin $(INPUTS-y) FORCE
1783         $(call if_changed,binman)
1784 else
1785 flash.bin: spl/u-boot-spl.bin u-boot.itb FORCE
1786         $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@
1787 endif
1788 endif
1789 #endif
1790
1791 u-boot.uim: u-boot.bin FORCE
1792         $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@
1793
1794 u-boot-nand.imx: u-boot.imx FORCE
1795         $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@
1796
1797 u-boot-with-spl.imx u-boot-with-nand-spl.imx: SPL $(if $(CONFIG_OF_SEPARATE),u-boot.img,u-boot.uim) FORCE
1798         $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@
1799
1800 MKIMAGEFLAGS_u-boot.ubl = -n $(UBL_CONFIG) -T ublimage -e $(CONFIG_TEXT_BASE)
1801
1802 u-boot.ubl: u-boot-with-spl.bin FORCE
1803         $(call if_changed,mkimage)
1804
1805 MKIMAGEFLAGS_u-boot-spl.ais = -s -n "/dev/null" \
1806         -T aisimage -e $(CONFIG_SPL_TEXT_BASE)
1807 spl/u-boot-spl.ais: spl/u-boot-spl.bin FORCE
1808         $(call if_changed,mkimage)
1809
1810 OBJCOPYFLAGS_u-boot.ais = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO)
1811 u-boot.ais: spl/u-boot-spl.ais u-boot.img FORCE
1812         $(call if_changed,pad_cat)
1813
1814 u-boot-signed.sb: u-boot.bin spl/u-boot-spl.bin
1815         $(Q)$(MAKE) $(build)=arch/arm/cpu/arm926ejs/mxs u-boot-signed.sb
1816 u-boot.sb: u-boot.bin spl/u-boot-spl.bin
1817         $(Q)$(MAKE) $(build)=arch/arm/cpu/arm926ejs/mxs u-boot.sb
1818
1819 MKIMAGEFLAGS_u-boot-spl.img = -A $(ARCH) -T firmware -C none \
1820         -a $(CONFIG_SPL_TEXT_BASE) -e $(CONFIG_SPL_TEXT_BASE) -n XLOADER
1821 spl/u-boot-spl.img: spl/u-boot-spl.bin FORCE
1822         $(call if_changed,mkimage)
1823
1824 ifneq ($(CONFIG_ARCH_SOCFPGA),)
1825 quiet_cmd_gensplx4 = GENSPLX4 $@
1826 cmd_gensplx4 = $(OBJCOPY) -I binary -O binary --gap-fill=0x0            \
1827                         --pad-to=$(CONFIG_SPL_PAD_TO)                   \
1828                         spl/u-boot-spl.sfp spl/u-boot-spl.sfp &&        \
1829                 cat     spl/u-boot-spl.sfp spl/u-boot-spl.sfp           \
1830                         spl/u-boot-spl.sfp spl/u-boot-spl.sfp > $@ || { rm -f $@; false; }
1831 spl/u-boot-splx4.sfp: spl/u-boot-spl.sfp FORCE
1832         $(call if_changed,gensplx4)
1833
1834 quiet_cmd_socboot = SOCBOOT $@
1835 cmd_socboot = cat       spl/u-boot-splx4.sfp u-boot.img > $@ || { rm -f $@; false; }
1836 u-boot-with-spl.sfp: spl/u-boot-splx4.sfp u-boot.img FORCE
1837         $(call if_changed,socboot)
1838
1839 quiet_cmd_gensplpadx4 = GENSPLPADX4 $@
1840 cmd_gensplpadx4 =  dd if=/dev/zero of=spl/u-boot-spl.pad bs=64 count=1024 ; \
1841                    cat  spl/u-boot-spl.sfp spl/u-boot-spl.pad \
1842                         spl/u-boot-spl.sfp spl/u-boot-spl.pad \
1843                         spl/u-boot-spl.sfp spl/u-boot-spl.pad \
1844                         spl/u-boot-spl.sfp spl/u-boot-spl.pad > $@ || \
1845                         { rm -f $@ spl/u-boot-spl.pad; false; }
1846 u-boot-spl-padx4.sfp: spl/u-boot-spl.sfp FORCE
1847         $(call if_changed,gensplpadx4)
1848
1849 quiet_cmd_socnandboot = SOCNANDBOOT $@
1850 cmd_socnandboot = cat   u-boot-spl-padx4.sfp u-boot.img > $@ || { rm -f $@; false; }
1851 u-boot-with-nand-spl.sfp: u-boot-spl-padx4.sfp u-boot.img FORCE
1852         $(call if_changed,socnandboot)
1853
1854 endif
1855
1856 ifeq ($(CONFIG_MPC85XX_HAVE_RESET_VECTOR)$(CONFIG_OF_SEPARATE),yy)
1857 u-boot-dtb.bin: u-boot-nodtb.bin u-boot.dtb u-boot-br.bin FORCE
1858         $(call if_changed,binman)
1859
1860 OBJCOPYFLAGS_u-boot-br.bin := -O binary -j .bootpg -j .resetvec
1861 u-boot-br.bin: u-boot FORCE
1862         $(call if_changed,objcopy)
1863 endif
1864
1865 quiet_cmd_ldr = LD      $@
1866 cmd_ldr = $(LD) $(LDFLAGS_$(@F)) \
1867                $(filter-out FORCE,$^) -o $@
1868
1869 ifdef CONFIG_X86
1870 OBJCOPYFLAGS_u-boot-x86-start16.bin := -O binary -j .start16
1871 u-boot-x86-start16.bin: u-boot FORCE
1872         $(call if_changed,objcopy)
1873
1874 OBJCOPYFLAGS_u-boot-x86-reset16.bin := -O binary -j .resetvec
1875 u-boot-x86-reset16.bin: u-boot FORCE
1876         $(call if_changed,objcopy)
1877
1878 endif # CONFIG_X86
1879
1880 OBJCOPYFLAGS_u-boot-app.efi := $(OBJCOPYFLAGS_EFI)
1881 u-boot-app.efi: u-boot FORCE
1882         $(call if_changed,zobjcopy)
1883
1884 u-boot.bin.o: u-boot.bin FORCE
1885         $(call if_changed,efipayload)
1886
1887 u-boot-payload.lds: $(LDSCRIPT_EFI) FORCE
1888         $(call if_changed_dep,cpp_lds)
1889
1890 # Rule to link the EFI payload which contains a stub and a U-Boot binary
1891 quiet_cmd_u-boot_payload ?= LD      $@
1892       cmd_u-boot_payload ?= $(LD) $(LDFLAGS_EFI_PAYLOAD) -o $@ \
1893       -T u-boot-payload.lds arch/x86/cpu/call32.o \
1894       lib/efi_client/efi.o lib/efi_client/efi_stub.o u-boot.bin.o \
1895       $(addprefix arch/$(ARCH)/lib/,$(EFISTUB))
1896
1897 u-boot-payload: u-boot.bin.o u-boot-payload.lds FORCE
1898         $(call if_changed,u-boot_payload)
1899
1900 OBJCOPYFLAGS_u-boot-payload.efi := $(OBJCOPYFLAGS_EFI)
1901 u-boot-payload.efi: u-boot-payload FORCE
1902         $(call if_changed,zobjcopy)
1903
1904 u-boot-img.bin: spl/u-boot-spl.bin u-boot.img FORCE
1905         $(call if_changed,cat)
1906
1907 #Add a target to create boot binary having SPL binary in PBI format
1908 #concatenated with u-boot binary. It is need by PowerPC SoC having
1909 #internal SRAM <= 512KB.
1910 MKIMAGEFLAGS_u-boot-spl.pbl = -n $(srctree)/$(CONFIG_SYS_FSL_PBL_RCW:"%"=%) \
1911                 -R $(srctree)/$(CONFIG_SYS_FSL_PBL_PBI:"%"=%) -T pblimage \
1912                 -A $(ARCH) -a $(CONFIG_SPL_TEXT_BASE)
1913
1914 spl/u-boot-spl.pbl: spl/u-boot-spl.bin FORCE
1915         $(call if_changed,mkimage)
1916
1917 ifeq ($(ARCH),arm)
1918 UBOOT_BINLOAD := u-boot.img
1919 else
1920 UBOOT_BINLOAD := u-boot.bin
1921 endif
1922
1923 OBJCOPYFLAGS_u-boot-with-spl-pbl.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) \
1924                           --gap-fill=0xff
1925
1926 u-boot-with-spl-pbl.bin: spl/u-boot-spl.pbl $(UBOOT_BINLOAD) FORCE
1927         $(call if_changed,pad_cat)
1928
1929 quiet_cmd_u-boot-elf ?= LD      $@
1930         cmd_u-boot-elf ?= $(LD) u-boot-elf.o -o $@ \
1931         $(if $(CONFIG_SYS_BIG_ENDIAN),-EB,-EL) \
1932         -T u-boot-elf.lds --defsym=$(CONFIG_PLATFORM_ELFENTRY)=$(CONFIG_TEXT_BASE) \
1933         -Ttext=$(CONFIG_TEXT_BASE)
1934 u-boot.elf: u-boot.bin u-boot-elf.lds
1935         $(Q)$(OBJCOPY) -I binary $(PLATFORM_ELFFLAGS) $< u-boot-elf.o
1936         $(call if_changed,u-boot-elf)
1937
1938 u-boot-elf.lds: arch/u-boot-elf.lds prepare FORCE
1939         $(call if_changed_dep,cpp_lds)
1940
1941 PHONY += prepare0
1942 # MediaTek's ARM-based u-boot needs a header to contains its load address
1943 # which is parsed by the BootROM.
1944 # If the SPL build is enabled, the header will be added to the spl binary,
1945 # and the spl binary and the u-boot.img will be combined into one file.
1946 # Otherwise the header will be added to the u-boot.bin directly.
1947
1948 ifeq ($(CONFIG_SPL),y)
1949 spl/u-boot-spl-mtk.bin: spl/u-boot-spl
1950
1951 u-boot-mtk.bin: u-boot-with-spl.bin
1952         $(call if_changed,copy)
1953 else
1954 MKIMAGEFLAGS_u-boot-mtk.bin = -T mtk_image \
1955         -a $(CONFIG_TEXT_BASE) -e $(CONFIG_TEXT_BASE) \
1956         -n "$(patsubst "%",%,$(CONFIG_MTK_BROM_HEADER_INFO))"
1957
1958 u-boot-mtk.bin: u-boot.bin FORCE
1959         $(call if_changed,mkimage)
1960 endif
1961
1962 quiet_cmd_endian_swap = SWAP    $@
1963       cmd_endian_swap = $(srctree)/tools/endian-swap.py $< $@
1964
1965 u-boot-swap.bin: u-boot.bin FORCE
1966         $(call if_changed,endian_swap)
1967
1968 ARCH_POSTLINK := $(wildcard $(srctree)/arch/$(ARCH)/Makefile.postlink)
1969
1970 # Generate linker list symbols references to force compiler to not optimize
1971 # them away when compiling with LTO
1972 ifeq ($(LTO_ENABLE),y)
1973 u-boot-keep-syms-lto := keep-syms-lto.o
1974 u-boot-keep-syms-lto_c := $(patsubst %.o,%.c,$(u-boot-keep-syms-lto))
1975
1976 quiet_cmd_keep_syms_lto = KSL     $@
1977       cmd_keep_syms_lto = \
1978         $(srctree)/scripts/gen_ll_addressable_symbols.sh $(NM) $^ > $@
1979
1980 quiet_cmd_keep_syms_lto_cc = KSLCC   $@
1981       cmd_keep_syms_lto_cc = \
1982         $(CC) $(filter-out $(LTO_CFLAGS),$(c_flags)) -c -o $@ $<
1983
1984 $(u-boot-keep-syms-lto_c): $(u-boot-main)
1985         $(call if_changed,keep_syms_lto)
1986 $(u-boot-keep-syms-lto): $(u-boot-keep-syms-lto_c)
1987         $(call if_changed,keep_syms_lto_cc)
1988 else
1989 u-boot-keep-syms-lto :=
1990 endif
1991
1992 # Rule to link u-boot
1993 # May be overridden by arch/$(ARCH)/config.mk
1994 ifeq ($(LTO_ENABLE),y)
1995 quiet_cmd_u-boot__ ?= LTO     $@
1996       cmd_u-boot__ ?=                                                           \
1997                 touch $(u-boot-main) ;                                          \
1998                 $(CC) -nostdlib -nostartfiles                                   \
1999                 $(LTO_FINAL_LDFLAGS) $(c_flags)                                 \
2000                 $(KBUILD_LDFLAGS:%=-Wl,%) $(LDFLAGS_u-boot:%=-Wl,%) -o $@       \
2001                 -T u-boot.lds $(u-boot-init)                                    \
2002                 -Wl,--whole-archive                                             \
2003                         $(u-boot-main)                                          \
2004                         $(u-boot-keep-syms-lto)                                 \
2005                         $(PLATFORM_LIBS)                                        \
2006                 -Wl,--no-whole-archive                                          \
2007                 -Wl,-Map,u-boot.map;                                            \
2008                 $(if $(ARCH_POSTLINK), $(MAKE) -f $(ARCH_POSTLINK) $@, true)
2009 else
2010 quiet_cmd_u-boot__ ?= LD      $@
2011       cmd_u-boot__ ?=                                                           \
2012                 touch $(u-boot-main) ;                                          \
2013                 $(LD) $(KBUILD_LDFLAGS) $(LDFLAGS_u-boot) -o $@                 \
2014                 -T u-boot.lds $(u-boot-init)                                    \
2015                 --whole-archive                                                 \
2016                         $(u-boot-main)                                          \
2017                 --no-whole-archive                                              \
2018                 $(PLATFORM_LIBS) -Map u-boot.map;                               \
2019                 $(if $(ARCH_POSTLINK), $(MAKE) -f $(ARCH_POSTLINK) $@, true)
2020 endif
2021
2022 quiet_cmd_smap = GEN     common/system_map.o
2023 cmd_smap = \
2024         smap=`$(call SYSTEM_MAP,u-boot) | \
2025                 awk '$$2 ~ /[tTwW]/ {printf $$1 $$3 "\\\\000"}'` ; \
2026         $(CC) $(c_flags) -DSYSTEM_MAP="\"$${smap}\"" \
2027                 -c $(srctree)/common/system_map.c -o common/system_map.o
2028
2029 u-boot: $(u-boot-init) $(u-boot-main) $(u-boot-keep-syms-lto) u-boot.lds FORCE
2030         +$(call if_changed,u-boot__)
2031 ifeq ($(CONFIG_KALLSYMS),y)
2032         $(call cmd,smap)
2033         $(call cmd,u-boot__) common/system_map.o
2034 endif
2035
2036 ifeq ($(CONFIG_RISCV),y)
2037         @tools/prelink-riscv $@
2038 endif
2039
2040 quiet_cmd_sym ?= SYM     $@
2041       cmd_sym ?= $(OBJDUMP) -t $< > $@
2042 u-boot.sym: u-boot FORCE
2043         $(call if_changed,sym)
2044
2045 # Environment processing
2046 # ---------------------------------------------------------------------------
2047
2048 # Directory where we expect the .env file, if it exists
2049 ENV_DIR := $(srctree)/board/$(BOARDDIR)
2050
2051 # Basename of .env file, stripping quotes
2052 ENV_SOURCE_FILE := $(CONFIG_ENV_SOURCE_FILE:"%"=%)
2053
2054 # Filename of .env file
2055 ENV_FILE_CFG := $(ENV_DIR)/$(ENV_SOURCE_FILE).env
2056
2057 # Default filename, if CONFIG_ENV_SOURCE_FILE is empty
2058 ENV_FILE_BOARD := $(ENV_DIR)/$(CONFIG_SYS_BOARD:"%"=%).env
2059
2060 # Select between the CONFIG_ENV_SOURCE_FILE and the default one
2061 ENV_FILE := $(if $(ENV_SOURCE_FILE),$(ENV_FILE_CFG),$(wildcard $(ENV_FILE_BOARD)))
2062
2063 # Run the environment text file through the preprocessor, but only if it is
2064 # non-empty, to save time and possible build errors if something is wonky with
2065 # the board.
2066 # If there is no ENV_FILE, produce an empty output file, to prevent a previous
2067 # build's file being used in the case of in-tree builds.
2068 quiet_cmd_gen_envp = ENVP    $@
2069       cmd_gen_envp = \
2070         if [ -s "$(ENV_FILE)" ]; then \
2071                 $(CPP) -P $(cpp_flags) -x assembler-with-cpp -undef \
2072                         -D__ASSEMBLY__ \
2073                         -D__UBOOT_CONFIG__ \
2074                         -DDEFAULT_DEVICE_TREE=$(subst ",,$(CONFIG_DEFAULT_DEVICE_TREE)) \
2075                         -I . -I include -I $(srctree)/include \
2076                         -include linux/kconfig.h -include include/config.h \
2077                         -I$(srctree)/arch/$(ARCH)/include \
2078                         $< -o $@; \
2079         else \
2080                 rm -f $@; \
2081                 touch $@ ; \
2082         fi
2083 include/generated/env.in: include/generated/env.txt
2084         $(call cmd,gen_envp)
2085
2086 # Regenerate the environment if it changes
2087 # We use 'wildcard' since the file is not required to exist (at present), in
2088 # which case we don't want this dependency, but instead should create an empty
2089 # file
2090 # This rule is useful since it shows the source file for the environment
2091 quiet_cmd_envc = ENVC    $@
2092       cmd_envc = \
2093         if [ -f "$<" ]; then \
2094                 cat $< > $@; \
2095         elif [ -n "$(ENV_SOURCE_FILE)" ]; then \
2096                 echo "Missing file $(ENV_FILE_CFG)"; \
2097         else \
2098                 touch $@ ; \
2099         fi
2100
2101 include/generated/env.txt: $(wildcard $(ENV_FILE)) include/generated/autoconf.h
2102         $(call cmd,envc)
2103
2104 # Write out the resulting environment, converted to a C string
2105 quiet_cmd_gen_envt = ENVT    $@
2106       cmd_gen_envt = \
2107         awk -f $(srctree)/scripts/env2string.awk $< >$@
2108 $(env_h): include/generated/env.in
2109         $(call cmd,gen_envt)
2110
2111 # ---------------------------------------------------------------------------
2112
2113 # The actual objects are generated when descending,
2114 # make sure no implicit rule kicks in
2115 $(sort $(u-boot-init) $(u-boot-main)): $(u-boot-dirs) ;
2116
2117 # Handle descending into subdirectories listed in $(u-boot-dirs)
2118 # Preset locale variables to speed up the build process. Limit locale
2119 # tweaks to this spot to avoid wrong language settings when running
2120 # make menuconfig etc.
2121 # Error messages still appears in the original language
2122
2123 PHONY += $(u-boot-dirs)
2124 $(u-boot-dirs): prepare
2125         $(Q)$(MAKE) $(build)=$@ need-builtin=1
2126
2127 tools: prepare
2128 # The "tools" are needed early
2129 $(filter-out tools, $(u-boot-dirs)): tools
2130 # The "examples" conditionally depend on U-Boot (say, when USE_PRIVATE_LIBGCC
2131 # is "yes"), so compile examples after U-Boot is compiled.
2132 examples: $(filter-out examples, $(u-boot-dirs))
2133
2134 ifeq ($(CONFIG_USE_PRIVATE_LIBGCC),y)
2135 # lib/efi_loader apps depend on arch/$(ARCH)/lib for lib.a
2136 lib: $(filter arch/$(ARCH)/lib, $(u-boot-dirs))
2137 endif
2138
2139 # The setlocalversion script comes from linux and expects a
2140 # KERNELVERSION variable in the environment for figuring out which
2141 # annotated tags are relevant. Pass UBOOTVERSION.
2142 define filechk_uboot.release
2143         KERNELVERSION=$(UBOOTVERSION) $(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree)
2144 endef
2145
2146 # Store (new) UBOOTRELEASE string in include/config/uboot.release
2147 include/config/uboot.release: include/config/auto.conf FORCE
2148         $(call filechk,uboot.release)
2149 # Additional helpers built in scripts/
2150 # Carefully list dependencies so we do not try to build scripts twice
2151 # in parallel
2152 PHONY += scripts
2153 scripts: scripts_basic scripts_dtc
2154         $(Q)$(MAKE) $(build)=$(@)
2155
2156 # Things we need to do before we recursively start building the kernel
2157 # or the modules are listed in "prepare".
2158 # A multi level approach is used. prepareN is processed before prepareN-1.
2159 # archprepare is used in arch Makefiles and when processed asm symlink,
2160 # version.h and scripts_basic is processed / created.
2161
2162 PHONY += prepare archprepare prepare1 prepare3
2163
2164 # prepare3 is used to check if we are building in a separate output directory,
2165 # and if so do:
2166 # 1) Check that make has not been executed in the kernel src $(srctree)
2167 prepare3: include/config/uboot.release
2168 ifneq ($(KBUILD_SRC),)
2169         @$(kecho) '  Using $(srctree) as source for U-Boot'
2170         $(Q)if [ -f $(srctree)/.config -o -d $(srctree)/include/config ]; then \
2171                 echo >&2 "  $(srctree) is not clean, please run 'make mrproper'"; \
2172                 echo >&2 "  in the '$(srctree)' directory.";\
2173                 /bin/false; \
2174         fi;
2175 endif
2176
2177 prepare1: prepare3 outputmakefile cfg $(version_h) $(timestamp_h) $(dt_h) $(env_h) \
2178                    include/config/auto.conf
2179 ifeq ($(wildcard $(LDSCRIPT)),)
2180         @echo >&2 "  Could not find linker script."
2181         @/bin/false
2182 endif
2183
2184 ifeq ($(CONFIG_ENV_USE_DEFAULT_ENV_TEXT_FILE),y)
2185 prepare1: $(defaultenv_h)
2186
2187 envtools: $(defaultenv_h)
2188 endif
2189 archprepare: prepare1 scripts
2190
2191 prepare0: archprepare
2192         $(Q)$(MAKE) $(build)=.
2193
2194 # All the preparing..
2195 prepare: prepare0 prepare-objtool
2196
2197 # Support for using generic headers in asm-generic
2198 asm-generic := -f $(srctree)/scripts/Makefile.asm-generic obj
2199
2200 PHONY += asm-generic uapi-asm-generic
2201 asm-generic: uapi-asm-generic
2202         $(Q)$(MAKE) $(asm-generic)=arch/$(SRCARCH)/include/generated/asm \
2203         generic=include/asm-generic
2204 uapi-asm-generic:
2205         $(Q)$(MAKE) $(asm-generic)=arch/$(SRCARCH)/include/generated/uapi/asm \
2206         generic=include/uapi/asm-generic
2207
2208 PHONY += prepare-objtool
2209 prepare-objtool: $(objtool_target)
2210 ifeq ($(SKIP_STACK_VALIDATION),1)
2211 ifdef CONFIG_UNWINDER_ORC
2212         @echo "error: Cannot generate ORC metadata for CONFIG_UNWINDER_ORC=y, please install libelf-dev, libelf-devel or elfutils-libelf-devel" >&2
2213         @false
2214 else
2215         @echo "warning: Cannot use CONFIG_STACK_VALIDATION=y, please install libelf-dev, libelf-devel or elfutils-libelf-devel" >&2
2216 endif
2217 endif
2218
2219 # Generate some files
2220 # ---------------------------------------------------------------------------
2221
2222 # Use sed to remove leading zeros from PATCHLEVEL to avoid using octal numbers
2223 define filechk_version.h
2224         (echo \#define PLAIN_VERSION \"$(UBOOTRELEASE)\"; \
2225         echo \#define U_BOOT_VERSION \"U-Boot \" PLAIN_VERSION; \
2226         echo \#define U_BOOT_VERSION_NUM $(VERSION); \
2227         echo \#define U_BOOT_VERSION_NUM_PATCH $$(echo $(PATCHLEVEL) | \
2228                 sed -e "s/^0*//"); \
2229         echo \#define HOST_ARCH $(HOST_ARCH); \
2230         echo \#define CC_VERSION_STRING \"$$(LC_ALL=C $(CC) --version | head -n 1)\"; \
2231         echo \#define LD_VERSION_STRING \"$$(LC_ALL=C $(LD) --version | head -n 1)\"; )
2232 endef
2233
2234 # The SOURCE_DATE_EPOCH mechanism requires a date that behaves like GNU date.
2235 # The BSD date on the other hand behaves different and would produce errors
2236 # with the misused '-d' switch.  Respect that and search a working date with
2237 # well known pre- and suffixes for the GNU variant of date.
2238 define filechk_timestamp.h
2239         (if test -n "$${SOURCE_DATE_EPOCH}"; then \
2240                 SOURCE_DATE="@$${SOURCE_DATE_EPOCH}"; \
2241                 DATE=""; \
2242                 for date in gdate date.gnu date; do \
2243                         $${date} -u -d "$${SOURCE_DATE}" >/dev/null 2>&1 && DATE="$${date}"; \
2244                 done; \
2245                 if test -n "$${DATE}"; then \
2246                         LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_DATE "%b %d %C%y"'; \
2247                         LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_TIME "%T"'; \
2248                         LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_TZ "%z"'; \
2249                         LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_EPOCH %s'; \
2250                 else \
2251                         return 42; \
2252                 fi; \
2253         else \
2254                 LC_ALL=C date +'#define U_BOOT_DATE "%b %d %C%y"'; \
2255                 LC_ALL=C date +'#define U_BOOT_TIME "%T"'; \
2256                 LC_ALL=C date +'#define U_BOOT_TZ "%z"'; \
2257                 LC_ALL=C date +'#define U_BOOT_EPOCH %s'; \
2258         fi)
2259 endef
2260
2261 define filechk_defaultenv.h
2262         ( { grep -v '^#' | grep -v '^$$' || true ; echo '' ; } | \
2263          tr '\n' '\0' | \
2264          sed -e 's/\\\x0\s*//g' | \
2265          xxd -i ; )
2266 endef
2267
2268 define filechk_dt.h
2269         (if test -n "$${DEVICE_TREE}"; then \
2270                 echo \#define DEVICE_TREE \"$(DEVICE_TREE)\"; \
2271         else \
2272                 echo \#define DEVICE_TREE CONFIG_DEFAULT_DEVICE_TREE; \
2273         fi)
2274 endef
2275
2276 $(version_h): include/config/uboot.release FORCE
2277         $(call filechk,version.h)
2278
2279 $(timestamp_h): $(srctree)/Makefile FORCE
2280         $(call filechk,timestamp.h)
2281
2282 $(dt_h): $(srctree)/Makefile FORCE
2283         $(call filechk,dt.h)
2284
2285 $(defaultenv_h): $(CONFIG_ENV_DEFAULT_ENV_TEXT_FILE:"%"=%) FORCE
2286         $(call filechk,defaultenv.h)
2287
2288 # ---------------------------------------------------------------------------
2289 # Devicetree files
2290
2291 ifneq ($(wildcard $(srctree)/arch/$(SRCARCH)/boot/dts/),)
2292 dtstree := arch/$(SRCARCH)/boot/dts
2293 endif
2294
2295 ifneq ($(dtstree),)
2296
2297 %.dtb: prepare3 scripts_dtc
2298         $(Q)$(MAKE) $(build)=$(dtstree) $(dtstree)/$@
2299
2300 PHONY += dtbs dtbs_install dt_binding_check
2301 dtbs dtbs_check: prepare3 scripts_dtc
2302         $(Q)$(MAKE) $(build)=$(dtstree)
2303
2304 dtbs_check: export CHECK_DTBS=1
2305 dtbs_check: dt_binding_check
2306
2307 dtbs_install:
2308         $(Q)$(MAKE) $(dtbinst)=$(dtstree)
2309
2310 ifdef CONFIG_OF_EARLY_FLATTREE
2311 all: dtbs
2312 endif
2313
2314 endif
2315
2316 # Check dtc and pylibfdt, if DTC is provided, else build them
2317 PHONY += scripts_dtc
2318 scripts_dtc: scripts_basic
2319         $(Q)if test "$(DTC)" = "$(DTC_INTREE)"; then \
2320                 $(MAKE) $(build)=scripts/dtc; \
2321         else \
2322                 if ! $(DTC) -v >/dev/null; then \
2323                         echo '*** Failed to check dtc version: $(DTC)'; \
2324                         false; \
2325                 else \
2326                         if test "$(call dtc-version)" -lt $(DTC_MIN_VERSION); then \
2327                                 echo '*** Your dtc is too old, please upgrade to dtc $(DTC_MIN_VERSION) or newer'; \
2328                                 false; \
2329                         else \
2330                                 if [ -n "$(CONFIG_PYLIBFDT)" ]; then \
2331                                         if ! echo "import libfdt" | $(PYTHON3) 2>/dev/null; then \
2332                                                 echo '*** pylibfdt does not seem to be available with $(PYTHON3)'; \
2333                                                 false; \
2334                                         fi; \
2335                                 fi; \
2336                         fi; \
2337                 fi; \
2338         fi
2339
2340 # ---------------------------------------------------------------------------
2341 quiet_cmd_cpp_lds = LDS     $@
2342 cmd_cpp_lds = $(CPP) -Wp,-MD,$(depfile) $(cpp_flags) $(LDPPFLAGS) \
2343                 -D__ASSEMBLY__ -x assembler-with-cpp -std=c99 -P -o $@ $<
2344
2345 u-boot.lds: $(LDSCRIPT) prepare FORCE
2346         $(call if_changed_dep,cpp_lds)
2347
2348 spl/u-boot-spl.bin: spl/u-boot-spl
2349         @:
2350         $(SPL_SIZE_CHECK)
2351
2352 spl/u-boot-spl-dtb.bin: spl/u-boot-spl
2353         @:
2354
2355 spl/u-boot-spl-dtb.hex: spl/u-boot-spl
2356         @:
2357
2358 spl/u-boot-spl: tools prepare $(if $(CONFIG_SPL_OF_CONTROL),dts/dt.dtb)
2359         $(Q)$(MAKE) obj=spl -f $(srctree)/scripts/Makefile.xpl all
2360
2361 spl/sunxi-spl.bin: spl/u-boot-spl
2362         @:
2363
2364 spl/sunxi-spl-with-ecc.bin: spl/sunxi-spl.bin
2365         @:
2366
2367 spl/u-boot-spl.sfp: spl/u-boot-spl
2368         @:
2369
2370 spl/boot.bin: spl/u-boot-spl
2371         @:
2372
2373 tpl/u-boot-tpl.bin: tpl/u-boot-tpl
2374         @:
2375         $(TPL_SIZE_CHECK)
2376
2377 tpl/u-boot-tpl: tools prepare $(if $(CONFIG_TPL_OF_CONTROL),dts/dt.dtb)
2378         $(Q)$(MAKE) obj=tpl -f $(srctree)/scripts/Makefile.xpl all
2379
2380 vpl/u-boot-vpl.bin: vpl/u-boot-vpl
2381         @:
2382         $(VPL_SIZE_CHECK)
2383
2384 vpl/u-boot-vpl: tools prepare $(if $(CONFIG_TPL_OF_CONTROL),dts/dt.dtb)
2385         $(Q)$(MAKE) obj=vpl -f $(srctree)/scripts/Makefile.xpl all
2386
2387 TAG_SUBDIRS := $(patsubst %,$(srctree)/%,$(u-boot-dirs) include)
2388
2389 FIND := find
2390 FINDFLAGS := -L
2391
2392 tags ctags:
2393                 ctags -w -o ctags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \
2394                                                 -name '*.[chS]' -print`
2395                 ln -s ctags tags
2396
2397 etags:
2398                 etags -a -o etags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \
2399                                                 -name '*.[chS]' -print`
2400 cscope:
2401                 $(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) -name '*.[chS]' -print > \
2402                                                 cscope.files
2403                 @find $(TAG_SUBDIRS) -name '*.[chS]' -type l -print | \
2404                         grep -xvf - cscope.files > cscope.files.no-symlinks; \
2405                 mv cscope.files.no-symlinks cscope.files
2406                 cscope -b -q -k
2407
2408 SYSTEM_MAP = \
2409                 $(NM) $1 | \
2410                 grep -v '\(compiled\)\|\(\.o$$\)\|\( [aUw] \)\|\(\.\.ng$$\)\|\(LASH[RL]DI\)' | \
2411                 LC_ALL=C sort
2412 System.map:     u-boot
2413                 @$(call SYSTEM_MAP,$<) > $@
2414
2415 # ARM relocations should all be R_ARM_RELATIVE (32-bit) or
2416 # R_AARCH64_RELATIVE (64-bit).
2417 checkarmreloc: u-boot
2418         @RELOC="`$(READELF) -r -W $< | cut -d ' ' -f 4 | \
2419                 grep R_A | sort -u`"; \
2420         if test "$$RELOC" != "R_ARM_RELATIVE" -a \
2421                  "$$RELOC" != "R_AARCH64_RELATIVE"; then \
2422                 echo "$< contains unexpected relocations: $$RELOC"; \
2423                 false; \
2424         fi
2425
2426 tools/version.h: include/version.h
2427         $(Q)mkdir -p $(dir $@)
2428         $(call if_changed,copy)
2429
2430 envtools: u-boot-initial-env scripts_basic $(version_h) $(timestamp_h) tools/version.h
2431         $(Q)$(MAKE) $(build)=tools/env
2432
2433 tools-only: export TOOLS_ONLY=y
2434 tools-only: scripts_basic $(version_h) $(timestamp_h) tools/version.h
2435         $(Q)$(MAKE) $(build)=tools
2436
2437 tools-all: export HOST_TOOLS_ALL=y
2438 tools-all: envtools tools ;
2439
2440 cross_tools: export CROSS_BUILD_TOOLS=y
2441 cross_tools: tools ;
2442
2443 .PHONY : CHANGELOG
2444 CHANGELOG:
2445         git log --no-merges U-Boot-1_1_5.. | \
2446         unexpand -a | sed -e 's/\s\s*$$//' > $@
2447
2448 #########################################################################
2449
2450 ###
2451 # Cleaning is done on three levels.
2452 # make clean     Delete most generated files
2453 #                Leave enough to build external modules
2454 # make mrproper  Delete the current configuration, and all generated files
2455 # make distclean Remove editor backup files, patch leftover files and the like
2456
2457 # Directories & files removed with 'make clean'
2458 CLEAN_DIRS  += $(MODVERDIR) \
2459                $(foreach d, spl tpl vpl, $(patsubst %,$d/%, \
2460                         $(filter-out include, $(shell ls -1 $d 2>/dev/null))))
2461
2462 CLEAN_FILES += include/autoconf.mk* include/bmp_logo.h include/bmp_logo_data.h \
2463                include/config.h include/generated/env.* drivers/video/u_boot_logo.S \
2464                tools/version.h u-boot* MLO* SPL System.map fit-dtb.blob* \
2465                u-boot-ivt.img.log u-boot-dtb.imx.log SPL.log u-boot.imx.log \
2466                lpc32xx-* bl31.c bl31.elf bl31_*.bin image.map tispl.bin* \
2467                idbloader.img flash.bin flash.log defconfig keep-syms-lto.c \
2468                mkimage-out.spl.mkimage mkimage.spl.mkimage imx-boot.map \
2469                itb.fit.fit itb.fit.itb itb.map spl.map mkimage-out.rom.mkimage \
2470                mkimage.rom.mkimage mkimage-in-simple-bin* rom.map simple-bin* \
2471                idbloader-spi.img lib/efi_loader/helloworld_efi.S *.itb \
2472                Test* capsule*.*.efi-capsule capsule*.map mkimage.imx-boot.spl \
2473                mkimage.imx-boot.u-boot mkimage-out.imx-boot.spl mkimage-out.imx-boot.u-boot \
2474                imx9image* m33-oei-ddrfw*
2475
2476 # Directories & files removed with 'make mrproper'
2477 MRPROPER_DIRS  += include/config include/generated spl tpl vpl \
2478                   .tmp_objdiff doc/output include/asm
2479
2480 # Remove include/asm symlink created by U-Boot before v2014.01
2481 MRPROPER_FILES += .config .config.old include/autoconf.mk* include/config.h \
2482                   ctags etags tags TAGS cscope* GPATH GTAGS GRTAGS GSYMS \
2483                   drivers/video/fonts/*.S include/asm *imx8mimage* *imx8mcst*
2484
2485 # clean - Delete most, but leave enough to build external modules
2486 #
2487 clean: rm-dirs  := $(CLEAN_DIRS)
2488 clean: rm-files := $(CLEAN_FILES)
2489 clean-dirs      := $(foreach f,$(u-boot-alldirs),$(if $(wildcard $(srctree)/$f/Makefile),$f))
2490 clean-dirs      := $(addprefix _clean_, $(clean-dirs))
2491
2492 PHONY += $(clean-dirs) clean archclean
2493 $(clean-dirs):
2494         $(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$@)
2495
2496 clean: $(clean-dirs)
2497         $(call cmd,rmdirs)
2498         $(call cmd,rmfiles)
2499         @find $(if $(KBUILD_EXTMOD), $(KBUILD_EXTMOD), .) $(RCS_FIND_IGNORE) \
2500                 \( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \
2501                 -o -name '*.ko.*' -o -name '*.su' -o -name '*.pyc' \
2502                 -o -name '*.dtb' -o -name '*.dtbo' \
2503                 -o -name '*.dtb.S' -o -name '*.dtbo.S' \
2504                 -o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \
2505                 -o -name '*.lex.c' -o -name '*.tab.[ch]' \
2506                 -o -name '*.asn1.[ch]' \
2507                 -o -name '*.symtypes' -o -name 'modules.order' \
2508                 -o -name modules.builtin -o -name '.tmp_*.o.*' \
2509                 -o -name 'dsdt_generated.aml' -o -name 'dsdt_generated.asl.tmp' \
2510                 -o -name 'dsdt_generated.c' \
2511                 -o -name 'generated_defconfig' \
2512                 -o -name '*.efi' -o -name '*.gcno' -o -name '*.so' \) \
2513                 -type f -print | xargs rm -f
2514
2515 # mrproper - Delete all generated files, including .config
2516 #
2517 mrproper: rm-dirs  := $(wildcard $(MRPROPER_DIRS))
2518 mrproper: rm-files := $(wildcard $(MRPROPER_FILES))
2519 mrproper-dirs      := $(addprefix _mrproper_,scripts)
2520
2521 PHONY += $(mrproper-dirs) mrproper
2522 $(mrproper-dirs):
2523         $(Q)$(MAKE) $(clean)=$(patsubst _mrproper_%,%,$@)
2524
2525 mrproper: clean $(mrproper-dirs)
2526         $(call cmd,rmdirs)
2527         $(call cmd,rmfiles)
2528         @rm -f arch/*/include/asm/arch
2529
2530 # distclean
2531 #
2532 PHONY += distclean
2533
2534 distclean: mrproper
2535         @find $(srctree) $(RCS_FIND_IGNORE) \
2536                 \( -name '*.orig' -o -name '*.rej' -o -name '*~' \
2537                 -o -name '*.bak' -o -name '#*#' -o -name '.*.orig' \
2538                 -o -name '.*.rej' -o -name '*%' -o -name 'core' \
2539                 -o -name '*.pyc' \) \
2540                 -type f -print | xargs rm -f
2541         @rm -f boards.cfg CHANGELOG .binman_stamp
2542
2543 # See doc/develop/python_cq.rst
2544 PHONY += pylint pylint_err
2545 PYLINT_BASE := scripts/pylint.base
2546 PYLINT_CUR := pylint.cur
2547 PYLINT_DIFF := pylint.diff
2548 pylint:
2549         $(Q)echo "Running pylint on all files (summary in $(PYLINT_CUR); output in pylint.out/)"
2550         $(Q)mkdir -p pylint.out
2551         $(Q)rm -f pylint.out/out*
2552         $(Q)find tools test -name "*.py" \
2553                 | xargs -n1 -P$(shell nproc 2>/dev/null || echo 1) \
2554                         sh -c 'pylint --reports=y --exit-zero -f parseable --ignore-imports=yes $$@ > pylint.out/$$(echo $$@ | tr / _ | sed s/.py//)' _
2555         $(Q)rm -f $(PYLINT_CUR)
2556         $(Q)( cd pylint.out; for f in *; do \
2557                 sed -ne "s/Your code has been rated at \([-0-9.]*\).*/$$f \1/p" $$f; \
2558         done ) | sort > $(PYLINT_CUR)
2559         $(Q)base=$$(mktemp) cur=$$(mktemp); cut -d' ' -f1 $(PYLINT_BASE) >$$base; \
2560                 cut -d' ' -f1 $(PYLINT_CUR) >$$cur; \
2561                 comm -3 $$base $$cur > $(PYLINT_DIFF); \
2562                 if [ -s $(PYLINT_DIFF) ]; then \
2563                         echo "Files have been added/removed. Try:\n\tcp $(PYLINT_CUR) $(PYLINT_BASE)"; \
2564                         echo; \
2565                         echo "Added files:"; \
2566                         comm -13 $$base $$cur; \
2567                         echo; \
2568                         echo "Removed files:"; \
2569                         comm -23 $$base $$cur; \
2570                         false; \
2571                 else \
2572                         rm $$base $$cur $(PYLINT_DIFF); \
2573                 fi
2574         $(Q)bad=false; while read base_file base_val <&3 && read cur_file cur_val <&4; do \
2575                 if awk "BEGIN {exit !($$cur_val < $$base_val)}"; then \
2576                         echo "$$base_file: Score was $$base_val, now $$cur_val"; \
2577                         bad=true; fi; \
2578                 done 3<$(PYLINT_BASE) 4<$(PYLINT_CUR); \
2579                 if $$bad; then \
2580                         echo "Some files have regressed, please fix"; \
2581                         false; \
2582                 else \
2583                         echo "No pylint regressions"; \
2584                 fi
2585
2586 # Check for errors only
2587 pylint_err:
2588         $(Q)pylint -E  -j 0 --ignore-imports=yes \
2589                 $(shell find tools test -name "*.py")
2590
2591 backup:
2592         F=`basename $(srctree)` ; cd .. ; \
2593         gtar --force-local -zcvf `LC_ALL=C date "+$$F-%Y-%m-%d-%T.tar.gz"` $$F
2594
2595 PHONY += _pip pip pip_release
2596
2597 pip_release: PIP_ARGS="--real"
2598 pip_test: PIP_ARGS=""
2599 pip: PIP_ARGS="-n"
2600
2601 pip pip_test pip_release: _pip
2602
2603 _pip:
2604         scripts/make_pip.sh u_boot_pylib ${PIP_ARGS}
2605         scripts/make_pip.sh patman ${PIP_ARGS}
2606         scripts/make_pip.sh buildman ${PIP_ARGS}
2607         scripts/make_pip.sh dtoc ${PIP_ARGS}
2608         scripts/make_pip.sh binman ${PIP_ARGS}
2609
2610 help:
2611         @echo  'Cleaning targets:'
2612         @echo  '  clean           - Remove most generated files but keep the config'
2613         @echo  '  mrproper        - Remove all generated files + config + various backup files'
2614         @echo  '  distclean       - mrproper + remove editor backup and patch files'
2615         @echo  ''
2616         @echo  'Configuration targets:'
2617         @$(MAKE) -f $(srctree)/scripts/kconfig/Makefile help
2618         @echo  ''
2619         @echo  'Test targets:'
2620         @echo  ''
2621         @echo  '  check           - Run all automated tests that use sandbox'
2622         @echo  '  pcheck          - Run quick automated tests in parallel'
2623         @echo  '  qcheck          - Run quick automated tests that use sandbox'
2624         @echo  '  tcheck          - Run quick automated tests on tools'
2625         @echo  '  pylint          - Run pylint on all Python files'
2626         @echo  ''
2627         @echo  'Other generic targets:'
2628         @echo  '  all             - Build all necessary images depending on configuration'
2629         @echo  '  tests           - Build U-Boot for sandbox and run tests'
2630         @echo  '* u-boot          - Build the bare u-boot'
2631         @echo  '  dir/            - Build all files in dir and below'
2632         @echo  '  dir/file.[oisS] - Build specified target only'
2633         @echo  '  dir/file.lst    - Build specified mixed source/assembly target only'
2634         @echo  '                    (requires a recent binutils and recent build (System.map))'
2635         @echo  '  tags/ctags      - Generate ctags file for editors'
2636         @echo  '  etags           - Generate etags file for editors'
2637         @echo  '  cscope          - Generate cscope index'
2638         @echo  '  ubootrelease    - Output the release version string (use with make -s)'
2639         @echo  '  ubootversion    - Output the version stored in Makefile (use with make -s)'
2640         @echo  "  cfg             - Don't build, just create the .cfg files"
2641         @echo  "  envtools        - Build only the target-side environment tools"
2642         @echo  ''
2643         @echo  'PyPi / pip targets:'
2644         @echo  '  pip             - Check building of PyPi packages'
2645         @echo  '  pip_test        - Build PyPi pakages and upload to test server'
2646         @echo  '  pip_release     - Build PyPi pakages and upload to release server'
2647         @echo  ''
2648         @echo  'Static analysers'
2649         @echo  '  checkstack      - Generate a list of stack hogs'
2650         @echo  '  coccicheck      - Execute static code analysis with Coccinelle'
2651         @echo  ''
2652         @echo  'Documentation targets:'
2653         @$(MAKE) -f $(srctree)/doc/Makefile dochelp
2654         @echo  ''
2655         @echo  '  make V=0|1 [targets] 0 => quiet build (default), 1 => verbose build'
2656         @echo  '  make V=2   [targets] 2 => give reason for rebuild of target'
2657         @echo  '  make O=dir [targets] Locate all output files in "dir", including .config'
2658         @echo  '  make C=1   [targets] Check all c source with $$CHECK (sparse by default)'
2659         @echo  '  make C=2   [targets] Force check of all c source with $$CHECK'
2660         @echo  '  make RECORDMCOUNT_WARN=1 [targets] Warn about ignored mcount sections'
2661         @echo  '  make W=n   [targets] Enable extra gcc checks, n=1,2,3 where'
2662         @echo  '                1: warnings which may be relevant and do not occur too often'
2663         @echo  '                2: warnings which occur quite often but may still be relevant'
2664         @echo  '                3: more obscure warnings, can most likely be ignored'
2665         @echo  '                Multiple levels can be combined with W=12 or W=123'
2666         @echo  ''
2667         @echo  'Execute "make" or "make all" to build all targets marked with [*] '
2668         @echo  'For further info see the ./README file'
2669
2670 ifneq ($(filter tests pcheck qcheck tcheck,$(MAKECMDGOALS)),)
2671 export sub_make_done := 0
2672 endif
2673
2674 tests check:
2675         $(srctree)/test/run
2676
2677 pcheck:
2678         $(srctree)/test/run parallel
2679
2680 qcheck:
2681         $(srctree)/test/run quick
2682
2683 tcheck:
2684         $(srctree)/test/run tools
2685
2686 # Documentation targets
2687 # ---------------------------------------------------------------------------
2688 DOC_TARGETS := xmldocs latexdocs pdfdocs htmldocs epubdocs cleandocs \
2689                linkcheckdocs dochelp refcheckdocs texinfodocs infodocs
2690 PHONY += $(DOC_TARGETS)
2691 $(DOC_TARGETS): scripts_basic FORCE
2692         $(Q)PYTHONPATH=$(srctree)/test/py/tests:$(srctree)/test/py \
2693         $(MAKE) $(build)=doc $@
2694
2695 PHONY += checkstack ubootrelease ubootversion
2696
2697 checkstack:
2698         $(OBJDUMP) -d u-boot $$(find . -name u-boot-spl) | \
2699         $(PERL) $(src)/scripts/checkstack.pl $(ARCH)
2700
2701 ubootversion:
2702         @echo $(UBOOTVERSION)
2703
2704 ubootrelease:
2705         @$(filechk_uboot.release)
2706
2707 # Clear a bunch of variables before executing the submake
2708
2709 ifeq ($(quiet),silent_)
2710 tools_silent=s
2711 endif
2712
2713 tools/: FORCE
2714         $(Q)mkdir -p $(objtree)/tools
2715         $(Q)$(MAKE) LDFLAGS= MAKEFLAGS="$(tools_silent) $(filter --j% -j,$(MAKEFLAGS))" O=$(abspath $(objtree)) subdir=tools -C $(src)/tools/
2716
2717 tools/%: FORCE
2718         $(Q)mkdir -p $(objtree)/tools
2719         $(Q)$(MAKE) LDFLAGS= MAKEFLAGS="$(tools_silent) $(filter --j% -j,$(MAKEFLAGS))" O=$(abspath $(objtree)) subdir=tools -C $(src)/tools/ $*
2720
2721 # Single targets
2722 # ---------------------------------------------------------------------------
2723 # Single targets are compatible with:
2724 # - build with mixed source and output
2725 # - build with separate output dir 'make O=...'
2726 # - external modules
2727 #
2728 #  target-dir => where to store outputfile
2729 #  build-dir  => directory in kernel source tree to use
2730
2731 build-target = $(if $(KBUILD_EXTMOD), $(KBUILD_EXTMOD)/)$@
2732 build-dir = $(patsubst %/,%,$(dir $(build-target)))
2733
2734 %.i: prepare FORCE
2735         $(Q)$(MAKE) $(build)=$(build-dir) $(build-target)
2736 %.ll: prepare FORCE
2737         $(Q)$(MAKE) $(build)=$(build-dir) $(build-target)
2738 %.lst: prepare FORCE
2739         $(Q)$(MAKE) $(build)=$(build-dir) $(build-target)
2740 %.o: prepare FORCE
2741         $(Q)$(MAKE) $(build)=$(build-dir) $(build-target)
2742 %.s: prepare FORCE
2743         $(Q)$(MAKE) $(build)=$(build-dir) $(build-target)
2744 %.symtypes: prepare FORCE
2745         $(Q)$(MAKE) $(build)=$(build-dir) $(build-target)
2746 %.ko: %.o
2747         $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost
2748
2749 # Modules
2750 PHONY += /
2751 /: ./
2752
2753 # Make sure the latest headers are built for Documentation
2754 Documentation/ samples/: headers_install
2755 %/: prepare FORCE
2756         $(Q)$(MAKE) KBUILD_MODULES=1 $(build)=$(build-dir)
2757
2758 quiet_cmd_genenv = GENENV  $@
2759 cmd_genenv = \
2760         $(objtree)/tools/printinitialenv | \
2761         sed -e '/^\s*$$/d' | \
2762         sort -t '=' -k 1,1 -s -o $@
2763
2764 u-boot-initial-env: scripts_basic $(version_h) $(env_h) include/config.h FORCE
2765         $(Q)$(MAKE) $(build)=tools $(objtree)/tools/printinitialenv
2766         $(call if_changed,genenv)
2767
2768 # Consistency checks
2769 # ---------------------------------------------------------------------------
2770
2771 PHONY += coccicheck
2772
2773 coccicheck:
2774         $(Q)$(CONFIG_SHELL) $(srctree)/scripts/$@
2775
2776 # FIXME Should go into a make.lib or something
2777 # ===========================================================================
2778
2779 quiet_cmd_rmdirs = $(if $(wildcard $(rm-dirs)),CLEAN   $(wildcard $(rm-dirs)))
2780       cmd_rmdirs = rm -rf $(rm-dirs)
2781
2782 quiet_cmd_rmfiles = $(if $(wildcard $(rm-files)),CLEAN   $(wildcard $(rm-files)))
2783       cmd_rmfiles = rm -f $(rm-files)
2784
2785 # Run depmod only if we have System.map and depmod is executable
2786 quiet_cmd_depmod = DEPMOD  $(KERNELRELEASE)
2787       cmd_depmod = $(CONFIG_SHELL) $(srctree)/scripts/depmod.sh $(DEPMOD) \
2788                    $(KERNELRELEASE)
2789
2790 # Create temporary dir for module support files
2791 # clean it up only when building all modules
2792 cmd_crmodverdir = $(Q)mkdir -p $(MODVERDIR) \
2793                   $(if $(KBUILD_MODULES),; rm -f $(MODVERDIR)/*)
2794
2795 # read saved command lines for existing targets
2796 existing-targets := $(wildcard $(sort $(targets)))
2797
2798 -include $(foreach f,$(existing-targets),$(dir $(f)).$(notdir $(f)).cmd)
2799
2800 endif   # ifeq ($(config-targets),1)
2801 endif   # ifeq ($(mixed-targets),1)
2802 endif   # need-sub-make
2803
2804 PHONY += FORCE
2805 FORCE:
2806
2807 # Declare the contents of the PHONY variable as phony.  We keep that
2808 # information in a variable so we can use it in if_changed and friends.
2809 .PHONY: $(PHONY)