Makefile

   1 #
   2 # (C) Copyright 2000-2013
   3 # Wolfgang Denk, DENX Software Engineering, wd@denx.de.
   4 #
   5 # SPDX-License-Identifier:      GPL-2.0+
   6 #
   7
   8 VERSION = 2014
   9 PATCHLEVEL = 04
  10 SUBLEVEL =
  11 EXTRAVERSION = -rc1
  12 NAME =
  13
  14 # *DOCUMENTATION*
  15 # To see a list of typical targets execute "make help"
  16 # More info can be located in ./README
  17 # Comments in this file are targeted only to the developer, do not
  18 # expect to learn how to build the kernel reading this file.
  19
  20 # Do not:
  21 # o  use make's built-in rules and variables
  22 #    (this increases performance and avoids hard-to-debug behaviour);
  23 # o  print "Entering directory ...";
  24 MAKEFLAGS += -rR --no-print-directory
  25
  26 # Avoid funny character set dependencies
  27 unexport LC_ALL
  28 LC_COLLATE=C
  29 LC_NUMERIC=C
  30 export LC_COLLATE LC_NUMERIC
  31
  32 # We are using a recursive build, so we need to do a little thinking
  33 # to get the ordering right.
  34 #
  35 # Most importantly: sub-Makefiles should only ever modify files in
  36 # their own directory. If in some directory we have a dependency on
  37 # a file in another dir (which doesn't happen often, but it's often
  38 # unavoidable when linking the built-in.o targets which finally
  39 # turn into vmlinux), we will call a sub make in that other dir, and
  40 # after that we are sure that everything which is in that other dir
  41 # is now up to date.
  42 #
  43 # The only cases where we need to modify files which have global
  44 # effects are thus separated out and done before the recursive
  45 # descending is started. They are now explicitly listed as the
  46 # prepare rule.
  47
  48 # To put more focus on warnings, be less verbose as default
  49 # Use 'make V=1' to see the full commands
  50
  51 ifeq ("$(origin V)", "command line")
  52   KBUILD_VERBOSE = $(V)
  53 endif
  54 ifndef KBUILD_VERBOSE
  55   KBUILD_VERBOSE = 0
  56 endif
  57
  58 # Call a source code checker (by default, "sparse") as part of the
  59 # C compilation.
  60 #
  61 # Use 'make C=1' to enable checking of only re-compiled files.
  62 # Use 'make C=2' to enable checking of *all* source files, regardless
  63 # of whether they are re-compiled or not.
  64 #
  65 # See the file "Documentation/sparse.txt" for more details, including
  66 # where to get the "sparse" utility.
  67
  68 ifeq ("$(origin C)", "command line")
  69   KBUILD_CHECKSRC = $(C)
  70 endif
  71 ifndef KBUILD_CHECKSRC
  72   KBUILD_CHECKSRC = 0
  73 endif
  74
  75 # Use make M=dir to specify directory of external module to build
  76 # Old syntax make ... SUBDIRS=$PWD is still supported
  77 # Setting the environment variable KBUILD_EXTMOD take precedence
  78 ifdef SUBDIRS
  79   KBUILD_EXTMOD ?= $(SUBDIRS)
  80 endif
  81
  82 ifeq ("$(origin M)", "command line")
  83   KBUILD_EXTMOD := $(M)
  84 endif
  85
  86 # kbuild supports saving output files in a separate directory.
  87 # To locate output files in a separate directory two syntaxes are supported.
  88 # In both cases the working directory must be the root of the kernel src.
  89 # 1) O=
  90 # Use "make O=dir/to/store/output/files/"
  91 #
  92 # 2) Set KBUILD_OUTPUT
  93 # Set the environment variable KBUILD_OUTPUT to point to the directory
  94 # where the output files shall be placed.
  95 # export KBUILD_OUTPUT=dir/to/store/output/files/
  96 # make
  97 #
  98 # The O= assignment takes precedence over the KBUILD_OUTPUT environment
  99 # variable.
 100
 101
 102 # KBUILD_SRC is set on invocation of make in OBJ directory
 103 # KBUILD_SRC is not intended to be used by the regular user (for now)
 104 ifeq ($(KBUILD_SRC),)
 105
 106 # OK, Make called in directory where kernel src resides
 107 # Do we want to locate output files in a separate directory?
 108 ifeq ("$(origin O)", "command line")
 109   KBUILD_OUTPUT := $(O)
 110 endif
 111
 112 ifeq ("$(origin W)", "command line")
 113   export KBUILD_ENABLE_EXTRA_GCC_CHECKS := $(W)
 114 endif
 115
 116 # That's our default target when none is given on the command line
 117 PHONY := _all
 118 _all:
 119
 120 # Cancel implicit rules on top Makefile
 121 $(CURDIR)/Makefile Makefile: ;
 122
 123 ifneq ($(KBUILD_OUTPUT),)
 124 # Invoke a second make in the output directory, passing relevant variables
 125 # check that the output directory actually exists
 126 saved-output := $(KBUILD_OUTPUT)
 127 KBUILD_OUTPUT := $(shell cd $(KBUILD_OUTPUT) && /bin/pwd)
 128 $(if $(KBUILD_OUTPUT),, \
 129      $(error output directory "$(saved-output)" does not exist))
 130
 131 PHONY += $(MAKECMDGOALS) sub-make
 132
 133 $(filter-out _all sub-make $(CURDIR)/Makefile, $(MAKECMDGOALS)) _all: sub-make
 134         @:
 135
 136 sub-make: FORCE
 137         $(if $(KBUILD_VERBOSE:1=),@)$(MAKE) -C $(KBUILD_OUTPUT) \
 138         KBUILD_SRC=$(CURDIR) \
 139         KBUILD_EXTMOD="$(KBUILD_EXTMOD)" -f $(CURDIR)/Makefile \
 140         $(filter-out _all sub-make,$(MAKECMDGOALS))
 141
 142 # Leave processing to above invocation of make
 143 skip-makefile := 1
 144 endif # ifneq ($(KBUILD_OUTPUT),)
 145 endif # ifeq ($(KBUILD_SRC),)
 146
 147 # We process the rest of the Makefile if this is the final invocation of make
 148 ifeq ($(skip-makefile),)
 149
 150 # If building an external module we do not care about the all: rule
 151 # but instead _all depend on modules
 152 PHONY += all
 153 ifeq ($(KBUILD_EXTMOD),)
 154 _all: all
 155 else
 156 _all: modules
 157 endif
 158
 159 srctree         := $(if $(KBUILD_SRC),$(KBUILD_SRC),$(CURDIR))
 160 objtree         := $(CURDIR)
 161 src             := $(srctree)
 162 obj             := $(objtree)
 163
 164 VPATH           := $(srctree)$(if $(KBUILD_EXTMOD),:$(KBUILD_EXTMOD))
 165
 166 export srctree objtree VPATH
 167
 168 OBJTREE         := $(objtree)
 169 SPLTREE         := $(OBJTREE)/spl
 170 TPLTREE         := $(OBJTREE)/tpl
 171 SRCTREE         := $(srctree)
 172 TOPDIR          := $(SRCTREE)
 173 export  TOPDIR SRCTREE OBJTREE SPLTREE TPLTREE
 174
 175 MKCONFIG        := $(SRCTREE)/mkconfig
 176 export MKCONFIG
 177
 178 # Make sure CDPATH settings don't interfere
 179 unexport CDPATH
 180
 181 #########################################################################
 182
 183 TIMESTAMP_FILE = include/generated/timestamp_autogenerated.h
 184 VERSION_FILE = include/generated/version_autogenerated.h
 185
 186 HOSTARCH := $(shell uname -m | \
 187         sed -e s/i.86/x86/ \
 188             -e s/sun4u/sparc64/ \
 189             -e s/arm.*/arm/ \
 190             -e s/sa110/arm/ \
 191             -e s/ppc64/powerpc/ \
 192             -e s/ppc/powerpc/ \
 193             -e s/macppc/powerpc/\
 194             -e s/sh.*/sh/)
 195
 196 HOSTOS := $(shell uname -s | tr '[:upper:]' '[:lower:]' | \
 197             sed -e 's/\(cygwin\).*/cygwin/')
 198
 199 export  HOSTARCH HOSTOS
 200
 201 # Deal with colliding definitions from tcsh etc.
 202 VENDOR=
 203
 204 #########################################################################
 205
 206 # set default to nothing for native builds
 207 ifeq ($(HOSTARCH),$(ARCH))
 208 CROSS_COMPILE ?=
 209 endif
 210
 211 # SHELL used by kbuild
 212 CONFIG_SHELL := $(shell if [ -x "$$BASH" ]; then echo $$BASH; \
 213           else if [ -x /bin/bash ]; then echo /bin/bash; \
 214           else echo sh; fi ; fi)
 215
 216 HOSTCC       = gcc
 217 HOSTCFLAGS   = -Wall -Wstrict-prototypes -O2 -fomit-frame-pointer
 218
 219 ifeq ($(HOSTOS),cygwin)
 220 HOSTCFLAGS      += -ansi
 221 endif
 222
 223 # Mac OS X / Darwin's C preprocessor is Apple specific.  It
 224 # generates numerous errors and warnings.  We want to bypass it
 225 # and use GNU C's cpp.  To do this we pass the -traditional-cpp
 226 # option to the compiler.  Note that the -traditional-cpp flag
 227 # DOES NOT have the same semantics as GNU C's flag, all it does
 228 # is invoke the GNU preprocessor in stock ANSI/ISO C fashion.
 229 #
 230 # Apple's linker is similar, thanks to the new 2 stage linking
 231 # multiple symbol definitions are treated as errors, hence the
 232 # -multiply_defined suppress option to turn off this error.
 233 #
 234 ifeq ($(HOSTOS),darwin)
 235 # get major and minor product version (e.g. '10' and '6' for Snow Leopard)
 236 DARWIN_MAJOR_VERSION    = $(shell sw_vers -productVersion | cut -f 1 -d '.')
 237 DARWIN_MINOR_VERSION    = $(shell sw_vers -productVersion | cut -f 2 -d '.')
 238
 239 os_x_before     = $(shell if [ $(DARWIN_MAJOR_VERSION) -le $(1) -a \
 240         $(DARWIN_MINOR_VERSION) -le $(2) ] ; then echo "$(3)"; else echo "$(4)"; fi ;)
 241
 242 # Snow Leopards build environment has no longer restrictions as described above
 243 HOSTCC       = $(call os_x_before, 10, 5, "cc", "gcc")
 244 HOSTCFLAGS  += $(call os_x_before, 10, 4, "-traditional-cpp")
 245 HOSTLDFLAGS += $(call os_x_before, 10, 5, "-multiply_defined suppress")
 246 endif
 247
 248 # Decide whether to build built-in, modular, or both.
 249 # Normally, just do built-in.
 250
 251 KBUILD_MODULES :=
 252 KBUILD_BUILTIN := 1
 253
 254 #       If we have only "make modules", don't compile built-in objects.
 255 #       When we're building modules with modversions, we need to consider
 256 #       the built-in objects during the descend as well, in order to
 257 #       make sure the checksums are up to date before we record them.
 258
 259 ifeq ($(MAKECMDGOALS),modules)
 260   KBUILD_BUILTIN := $(if $(CONFIG_MODVERSIONS),1)
 261 endif
 262
 263 #       If we have "make <whatever> modules", compile modules
 264 #       in addition to whatever we do anyway.
 265 #       Just "make" or "make all" shall build modules as well
 266
 267 # U-Boot does not need modules
 268 #ifneq ($(filter all _all modules,$(MAKECMDGOALS)),)
 269 #  KBUILD_MODULES := 1
 270 #endif
 271
 272 #ifeq ($(MAKECMDGOALS),)
 273 #  KBUILD_MODULES := 1
 274 #endif
 275
 276 export KBUILD_MODULES KBUILD_BUILTIN
 277 export KBUILD_CHECKSRC KBUILD_SRC KBUILD_EXTMOD
 278
 279 # Beautify output
 280 # ---------------------------------------------------------------------------
 281 #
 282 # Normally, we echo the whole command before executing it. By making
 283 # that echo $($(quiet)$(cmd)), we now have the possibility to set
 284 # $(quiet) to choose other forms of output instead, e.g.
 285 #
 286 #         quiet_cmd_cc_o_c = Compiling $(RELDIR)/$@
 287 #         cmd_cc_o_c       = $(CC) $(c_flags) -c -o $@ $<
 288 #
 289 # If $(quiet) is empty, the whole command will be printed.
 290 # If it is set to "quiet_", only the short version will be printed.
 291 # If it is set to "silent_", nothing will be printed at all, since
 292 # the variable $(silent_cmd_cc_o_c) doesn't exist.
 293 #
 294 # A simple variant is to prefix commands with $(Q) - that's useful
 295 # for commands that shall be hidden in non-verbose mode.
 296 #
 297 #       $(Q)ln $@ :<
 298 #
 299 # If KBUILD_VERBOSE equals 0 then the above command will be hidden.
 300 # If KBUILD_VERBOSE equals 1 then the above command is displayed.
 301
 302 ifeq ($(KBUILD_VERBOSE),1)
 303   quiet =
 304   Q =
 305 else
 306   quiet=quiet_
 307   Q = @
 308 endif
 309
 310 # If the user is running make -s (silent mode), suppress echoing of
 311 # commands
 312
 313 ifneq ($(filter s% -s%,$(MAKEFLAGS)),)
 314   quiet=silent_
 315 endif
 316
 317 export quiet Q KBUILD_VERBOSE
 318
 319
 320 # Look for make include files relative to root of kernel src
 321 MAKEFLAGS += --include-dir=$(srctree)
 322
 323 # We need some generic definitions (do not try to remake the file).
 324 $(srctree)/scripts/Kbuild.include: ;
 325 include $(srctree)/scripts/Kbuild.include
 326
 327 # Make variables (CC, etc...)
 328
 329 AS              = $(CROSS_COMPILE)as
 330 # Always use GNU ld
 331 ifneq ($(shell $(CROSS_COMPILE)ld.bfd -v 2> /dev/null),)
 332 LD              = $(CROSS_COMPILE)ld.bfd
 333 else
 334 LD              = $(CROSS_COMPILE)ld
 335 endif
 336 CC              = $(CROSS_COMPILE)gcc
 337 CPP             = $(CC) -E
 338 AR              = $(CROSS_COMPILE)ar
 339 NM              = $(CROSS_COMPILE)nm
 340 LDR             = $(CROSS_COMPILE)ldr
 341 STRIP           = $(CROSS_COMPILE)strip
 342 OBJCOPY         = $(CROSS_COMPILE)objcopy
 343 OBJDUMP         = $(CROSS_COMPILE)objdump
 344 AWK             = awk
 345 RANLIB          = $(CROSS_COMPILE)RANLIB
 346 DTC             = dtc
 347 CHECK           = sparse
 348
 349 CHECKFLAGS     := -D__linux__ -Dlinux -D__STDC__ -Dunix -D__unix__ \
 350                   -Wbitwise -Wno-return-void -D__CHECK_ENDIAN__ $(CF)
 351
 352 KBUILD_CPPFLAGS := -D__KERNEL__
 353
 354 KBUILD_CFLAGS   := -Wall -Wstrict-prototypes \
 355                    -Wno-format-security \
 356                    -fno-builtin -ffreestanding
 357 KBUILD_AFLAGS   := -D__ASSEMBLY__
 358
 359 U_BOOT_VERSION = $(VERSION)$(if $(PATCHLEVEL),.$(PATCHLEVEL)$(if $(SUBLEVEL),.$(SUBLEVEL)))$(EXTRAVERSION)
 360
 361 export VERSION PATCHLEVEL SUBLEVEL U_BOOT_VERSION
 362 export ARCH CPU BOARD VENDOR SOC
 363 export CONFIG_SHELL HOSTCC HOSTCFLAGS HOSTLDFLAGS CROSS_COMPILE AS LD CC
 364 export CPP AR NM LDR STRIP OBJCOPY OBJDUMP
 365 export MAKE AWK
 366 export DTC CHECK CHECKFLAGS
 367
 368 export KBUILD_CPPFLAGS NOSTDINC_FLAGS UBOOTINCLUDE
 369 export KBUILD_CFLAGS KBUILD_AFLAGS
 370
 371 # When compiling out-of-tree modules, put MODVERDIR in the module
 372 # tree rather than in the kernel tree. The kernel tree might
 373 # even be read-only.
 374 export MODVERDIR := $(if $(KBUILD_EXTMOD),$(firstword $(KBUILD_EXTMOD))/).tmp_versions
 375
 376 # Files to ignore in find ... statements
 377
 378 RCS_FIND_IGNORE := \( -name SCCS -o -name BitKeeper -o -name .svn -o -name CVS \
 379                    -o -name .pc -o -name .hg -o -name .git \) -prune -o
 380 export RCS_TAR_IGNORE := --exclude SCCS --exclude BitKeeper --exclude .svn \
 381                          --exclude CVS --exclude .pc --exclude .hg --exclude .git
 382
 383 # ===========================================================================
 384 # Rules shared between *config targets and build targets
 385
 386 # Basic helpers built in scripts/
 387 PHONY += scripts_basic
 388 scripts_basic:
 389         $(Q)$(MAKE) $(build)=scripts/basic
 390         $(Q)rm -f .tmp_quiet_recordmcount
 391
 392 # To avoid any implicit rule to kick in, define an empty command.
 393 scripts/basic/%: scripts_basic ;
 394
 395 PHONY += outputmakefile
 396 # outputmakefile generates a Makefile in the output directory, if using a
 397 # separate output directory. This allows convenient use of make in the
 398 # output directory.
 399 outputmakefile:
 400 ifneq ($(KBUILD_SRC),)
 401         $(Q)ln -fsn $(srctree) source
 402         $(Q)$(CONFIG_SHELL) $(srctree)/scripts/mkmakefile \
 403             $(srctree) $(objtree) $(VERSION) $(PATCHLEVEL)
 404 endif
 405
 406 # To make sure we do not include .config for any of the *config targets
 407 # catch them early, and hand them over to scripts/kconfig/Makefile
 408 # It is allowed to specify more targets when calling make, including
 409 # mixing *config targets and build targets.
 410 # For example 'make oldconfig all'.
 411 # Detect when mixed targets is specified, and make a second invocation
 412 # of make so .config is not included in this case either (for *config).
 413
 414 no-dot-config-targets := clean clobber mrproper distclean \
 415                          help %docs check% coccicheck \
 416                          backup
 417
 418 config-targets := 0
 419 mixed-targets  := 0
 420 dot-config     := 1
 421
 422 ifneq ($(filter $(no-dot-config-targets), $(MAKECMDGOALS)),)
 423         ifeq ($(filter-out $(no-dot-config-targets), $(MAKECMDGOALS)),)
 424                 dot-config := 0
 425         endif
 426 endif
 427
 428 ifeq ($(KBUILD_EXTMOD),)
 429         ifneq ($(filter config %config,$(MAKECMDGOALS)),)
 430                 config-targets := 1
 431                 ifneq ($(filter-out config %config,$(MAKECMDGOALS)),)
 432                         mixed-targets := 1
 433                 endif
 434         endif
 435 endif
 436
 437 ifeq ($(mixed-targets),1)
 438 # ===========================================================================
 439 # We're called with mixed targets (*config and build targets).
 440 # Handle them one by one.
 441
 442 PHONY += $(MAKECMDGOALS) build-one-by-one
 443
 444 $(MAKECMDGOALS): build-one-by-one
 445         @:
 446
 447 build-one-by-one:
 448         $(Q)set -e; \
 449         for i in $(MAKECMDGOALS); do \
 450                 $(MAKE) -f $(srctree)/Makefile $$i; \
 451         done
 452
 453 else
 454 ifeq ($(config-targets),1)
 455 # ===========================================================================
 456 # *config targets only - make sure prerequisites are updated, and descend
 457 # in scripts/kconfig to make the *config target
 458
 459 # Read arch specific Makefile to set KBUILD_DEFCONFIG as needed.
 460 # KBUILD_DEFCONFIG may point out an alternative default configuration
 461 # used for 'make defconfig'
 462
 463 %_config:: outputmakefile
 464         @$(MKCONFIG) -A $(@:_config=)
 465
 466 else
 467 # ===========================================================================
 468 # Build targets only - this includes vmlinux, arch specific targets, clean
 469 # targets and others. In general all targets except *config targets.
 470
 471 # load ARCH, BOARD, and CPU configuration
 472 -include include/config.mk
 473
 474 ifeq ($(dot-config),1)
 475 # Read in config
 476 -include include/autoconf.mk
 477 -include include/autoconf.mk.dep
 478
 479 # load other configuration
 480 include $(srctree)/config.mk
 481
 482 ifeq ($(wildcard include/config.mk),)
 483 $(error "System not configured - see README")
 484 endif
 485
 486 ifeq ($(__HAVE_ARCH_GENERIC_BOARD),)
 487 ifneq ($(CONFIG_SYS_GENERIC_BOARD),)
 488 $(error Your architecture does not support generic board. \
 489 Please undefined CONFIG_SYS_GENERIC_BOARD in your board config file)
 490 endif
 491 endif
 492
 493 # If board code explicitly specified LDSCRIPT or CONFIG_SYS_LDSCRIPT, use
 494 # that (or fail if absent).  Otherwise, search for a linker script in a
 495 # standard location.
 496
 497 LDSCRIPT_MAKEFILE_DIR = $(dir $(LDSCRIPT))
 498
 499 ifndef LDSCRIPT
 500         #LDSCRIPT := $(TOPDIR)/board/$(BOARDDIR)/u-boot.lds.debug
 501         ifdef CONFIG_SYS_LDSCRIPT
 502                 # need to strip off double quotes
 503                 LDSCRIPT := $(CONFIG_SYS_LDSCRIPT:"%"=%)
 504         endif
 505 endif
 506
 507 # If there is no specified link script, we look in a number of places for it
 508 ifndef LDSCRIPT
 509         ifeq ($(CONFIG_NAND_U_BOOT),y)
 510                 LDSCRIPT := $(TOPDIR)/board/$(BOARDDIR)/u-boot-nand.lds
 511                 ifeq ($(wildcard $(LDSCRIPT)),)
 512                         LDSCRIPT := $(TOPDIR)/$(CPUDIR)/u-boot-nand.lds
 513                 endif
 514         endif
 515         ifeq ($(wildcard $(LDSCRIPT)),)
 516                 LDSCRIPT := $(TOPDIR)/board/$(BOARDDIR)/u-boot.lds
 517         endif
 518         ifeq ($(wildcard $(LDSCRIPT)),)
 519                 LDSCRIPT := $(TOPDIR)/$(CPUDIR)/u-boot.lds
 520         endif
 521         ifeq ($(wildcard $(LDSCRIPT)),)
 522                 LDSCRIPT := $(TOPDIR)/arch/$(ARCH)/cpu/u-boot.lds
 523                 # We don't expect a Makefile here
 524                 LDSCRIPT_MAKEFILE_DIR =
 525         endif
 526         ifeq ($(wildcard $(LDSCRIPT)),)
 527 $(error could not find linker script)
 528         endif
 529 endif
 530
 531 else
 532
 533
 534 endif # $(dot-config)
 535
 536 KBUILD_CFLAGS += -Os #-fomit-frame-pointer
 537
 538 ifdef BUILD_TAG
 539 KBUILD_CFLAGS += -DBUILD_TAG='"$(BUILD_TAG)"'
 540 endif
 541
 542 KBUILD_CFLAGS += $(call cc-option,-fno-stack-protector)
 543
 544 KBUILD_CFLAGS   += -g
 545 # $(KBUILD_AFLAGS) sets -g, which causes gcc to pass a suitable -g<format>
 546 # option to the assembler.
 547 KBUILD_AFLAGS   += -g
 548
 549 # Report stack usage if supported
 550 KBUILD_CFLAGS += $(call cc-option,-fstack-usage)
 551
 552 KBUILD_CFLAGS += $(call cc-option,-Wno-format-nonliteral)
 553
 554 # turn jbsr into jsr for m68k
 555 ifeq ($(ARCH),m68k)
 556 ifeq ($(findstring 3.4,$(shell $(CC) --version)),3.4)
 557 KBUILD_AFLAGS += -Wa,-gstabs,-S
 558 endif
 559 endif
 560
 561 ifneq ($(CONFIG_SYS_TEXT_BASE),)
 562 KBUILD_CPPFLAGS += -DCONFIG_SYS_TEXT_BASE=$(CONFIG_SYS_TEXT_BASE)
 563 endif
 564
 565 export CONFIG_SYS_TEXT_BASE
 566
 567 # Use UBOOTINCLUDE when you must reference the include/ directory.
 568 # Needed to be compatible with the O= option
 569 UBOOTINCLUDE    :=
 570 ifneq ($(OBJTREE),$(SRCTREE))
 571 UBOOTINCLUDE    += -I$(OBJTREE)/include
 572 endif
 573 UBOOTINCLUDE    += -I$(srctree)/include \
 574                 -I$(srctree)/arch/$(ARCH)/include
 575
 576 NOSTDINC_FLAGS += -nostdinc -isystem $(shell $(CC) -print-file-name=include)
 577 CHECKFLAGS     += $(NOSTDINC_FLAGS)
 578
 579 # FIX ME
 580 cpp_flags := $(KBUILD_CPPFLAGS) $(CPPFLAGS) $(UBOOTINCLUDE) $(NOSTDINC_FLAGS)
 581 c_flags := $(KBUILD_CFLAGS) $(cpp_flags)
 582
 583 .PHONY : $(VERSION_FILE) $(TIMESTAMP_FILE)
 584
 585 #########################################################################
 586 # U-Boot objects....order is important (i.e. start must be first)
 587
 588 head-y := $(CPUDIR)/start.o
 589 head-$(CONFIG_4xx) += arch/powerpc/cpu/ppc4xx/resetvec.o
 590 head-$(CONFIG_MPC85xx) += arch/powerpc/cpu/mpc85xx/resetvec.o
 591
 592 HAVE_VENDOR_COMMON_LIB = $(if $(wildcard $(srctree)/board/$(VENDOR)/common/Makefile),y,n)
 593
 594 libs-y += lib/
 595 libs-$(HAVE_VENDOR_COMMON_LIB) += board/$(VENDOR)/common/
 596 libs-y += $(CPUDIR)/
 597 ifdef SOC
 598 libs-y += $(CPUDIR)/$(SOC)/
 599 endif
 600 libs-$(CONFIG_OF_EMBED) += dts/
 601 libs-y += arch/$(ARCH)/lib/
 602 libs-y += fs/
 603 libs-y += net/
 604 libs-y += disk/
 605 libs-y += drivers/
 606 libs-y += drivers/dma/
 607 libs-y += drivers/gpio/
 608 libs-y += drivers/i2c/
 609 libs-y += drivers/input/
 610 libs-y += drivers/mmc/
 611 libs-y += drivers/mtd/
 612 libs-$(CONFIG_CMD_NAND) += drivers/mtd/nand/
 613 libs-y += drivers/mtd/onenand/
 614 libs-$(CONFIG_CMD_UBI) += drivers/mtd/ubi/
 615 libs-y += drivers/mtd/spi/
 616 libs-y += drivers/net/
 617 libs-y += drivers/net/phy/
 618 libs-y += drivers/pci/
 619 libs-y += drivers/power/ \
 620         drivers/power/fuel_gauge/ \
 621         drivers/power/mfd/ \
 622         drivers/power/pmic/ \
 623         drivers/power/battery/
 624 libs-y += drivers/spi/
 625 libs-$(CONFIG_FMAN_ENET) += drivers/net/fm/
 626 libs-$(CONFIG_SYS_FSL_DDR) += drivers/ddr/fsl/
 627 libs-y += drivers/serial/
 628 libs-y += drivers/usb/eth/
 629 libs-y += drivers/usb/gadget/
 630 libs-y += drivers/usb/host/
 631 libs-y += drivers/usb/musb/
 632 libs-y += drivers/usb/musb-new/
 633 libs-y += drivers/usb/phy/
 634 libs-y += drivers/usb/ulpi/
 635 libs-y += common/
 636 libs-y += lib/libfdt/
 637 libs-$(CONFIG_API) += api/
 638 libs-$(CONFIG_HAS_POST) += post/
 639 libs-y += test/
 640
 641 ifneq (,$(filter $(SOC), mx25 mx27 mx5 mx6 mx31 mx35 mxs vf610))
 642 libs-y += arch/$(ARCH)/imx-common/
 643 endif
 644
 645 libs-$(CONFIG_ARM) += arch/arm/cpu/
 646 libs-$(CONFIG_PPC) += arch/powerpc/cpu/
 647
 648 libs-y += board/$(BOARDDIR)/
 649
 650 libs-y := $(sort $(libs-y))
 651
 652 u-boot-dirs     := $(patsubst %/,%,$(filter %/, $(libs-y))) tools examples
 653
 654 u-boot-alldirs  := $(sort $(u-boot-dirs) $(patsubst %/,%,$(filter %/, $(libs-))))
 655
 656 libs-y          := $(patsubst %/, %/built-in.o, $(libs-y))
 657
 658 u-boot-init := $(head-y)
 659 u-boot-main := $(libs-y)
 660
 661
 662 # Add GCC lib
 663 ifdef USE_PRIVATE_LIBGCC
 664 ifeq ("$(USE_PRIVATE_LIBGCC)", "yes")
 665 PLATFORM_LIBGCC = $(OBJTREE)/arch/$(ARCH)/lib/lib.a
 666 else
 667 PLATFORM_LIBGCC = -L $(USE_PRIVATE_LIBGCC) -lgcc
 668 endif
 669 else
 670 PLATFORM_LIBGCC := -L $(shell dirname `$(CC) $(c_flags) -print-libgcc-file-name`) -lgcc
 671 endif
 672 PLATFORM_LIBS += $(PLATFORM_LIBGCC)
 673 export PLATFORM_LIBS
 674
 675 # Special flags for CPP when processing the linker script.
 676 # Pass the version down so we can handle backwards compatibility
 677 # on the fly.
 678 LDPPFLAGS += \
 679         -include $(TOPDIR)/include/u-boot/u-boot.lds.h \
 680         -DCPUDIR=$(CPUDIR) \
 681         $(shell $(LD) --version | \
 682           sed -ne 's/GNU ld version \([0-9][0-9]*\)\.\([0-9][0-9]*\).*/-DLD_MAJOR=\1 -DLD_MINOR=\2/p')
 683
 684 #########################################################################
 685 #########################################################################
 686
 687 ifneq ($(CONFIG_BOARD_SIZE_LIMIT),)
 688 BOARD_SIZE_CHECK = \
 689         @actual=`wc -c $@ | awk '{print $$1}'`; \
 690         limit=`printf "%d" $(CONFIG_BOARD_SIZE_LIMIT)`; \
 691         if test $$actual -gt $$limit; then \
 692                 echo "$@ exceeds file size limit:" >&2 ; \
 693                 echo "  limit:  $$limit bytes" >&2 ; \
 694                 echo "  actual: $$actual bytes" >&2 ; \
 695                 echo "  excess: $$((actual - limit)) bytes" >&2; \
 696                 exit 1; \
 697         fi
 698 else
 699 BOARD_SIZE_CHECK =
 700 endif
 701
 702 # Statically apply RELA-style relocations (currently arm64 only)
 703 ifneq ($(CONFIG_STATIC_RELA),)
 704 # $(1) is u-boot ELF, $(2) is u-boot bin, $(3) is text base
 705 DO_STATIC_RELA = \
 706         start=$$($(NM) $(1) | grep __rel_dyn_start | cut -f 1 -d ' '); \
 707         end=$$($(NM) $(1) | grep __rel_dyn_end | cut -f 1 -d ' '); \
 708         tools/relocate-rela $(2) $(3) $$start $$end
 709 else
 710 DO_STATIC_RELA =
 711 endif
 712
 713 # Always append ALL so that arch config.mk's can add custom ones
 714 ALL-y += u-boot.srec u-boot.bin System.map
 715
 716 ALL-$(CONFIG_NAND_U_BOOT) += u-boot-nand.bin
 717 ALL-$(CONFIG_ONENAND_U_BOOT) += u-boot-onenand.bin
 718 ALL-$(CONFIG_RAMBOOT_PBL) += u-boot.pbl
 719 ALL-$(CONFIG_SPL) += spl/u-boot-spl.bin
 720 ALL-$(CONFIG_SPL_FRAMEWORK) += u-boot.img
 721 ALL-$(CONFIG_TPL) += tpl/u-boot-tpl.bin
 722 ALL-$(CONFIG_OF_SEPARATE) += u-boot-dtb.bin
 723 ifneq ($(CONFIG_SPL_TARGET),)
 724 ALL-$(CONFIG_SPL) += $(CONFIG_SPL_TARGET:"%"=%)
 725 endif
 726 ALL-$(CONFIG_REMAKE_ELF) += u-boot.elf
 727
 728 # enable combined SPL/u-boot/dtb rules for tegra
 729 ifneq ($(CONFIG_TEGRA),)
 730 ifeq ($(CONFIG_SPL),y)
 731 ifeq ($(CONFIG_OF_SEPARATE),y)
 732 ALL-y += u-boot-dtb-tegra.bin
 733 else
 734 ALL-y += u-boot-nodtb-tegra.bin
 735 endif
 736 endif
 737 endif
 738
 739 LDFLAGS_u-boot += -T u-boot.lds $(LDFLAGS_FINAL)
 740 ifneq ($(CONFIG_SYS_TEXT_BASE),)
 741 LDFLAGS_u-boot += -Ttext $(CONFIG_SYS_TEXT_BASE)
 742 endif
 743
 744 all:            $(ALL-y)
 745
 746 PHONY += dtbs
 747 dtbs dts/dt.dtb: checkdtc u-boot
 748         $(Q)$(MAKE) $(build)=dts dtbs
 749
 750 u-boot-dtb.bin: u-boot.bin dts/dt.dtb
 751                 cat $^ >$@
 752
 753 u-boot.hex:     u-boot
 754                 $(OBJCOPY) ${OBJCFLAGS} -O ihex $< $@
 755
 756 u-boot.srec:    u-boot
 757                 $(OBJCOPY) ${OBJCFLAGS} -O srec $< $@
 758
 759 u-boot.bin:     u-boot
 760                 $(OBJCOPY) ${OBJCFLAGS} -O binary $< $@
 761                 $(call DO_STATIC_RELA,$<,$@,$(CONFIG_SYS_TEXT_BASE))
 762                 $(BOARD_SIZE_CHECK)
 763
 764 u-boot.ldr:     u-boot
 765                 $(CREATE_LDR_ENV)
 766                 $(LDR) -T $(CONFIG_BFIN_CPU) -c $@ $< $(LDR_FLAGS)
 767                 $(BOARD_SIZE_CHECK)
 768
 769 u-boot.ldr.hex: u-boot.ldr
 770                 $(OBJCOPY) ${OBJCFLAGS} -O ihex $< $@ -I binary
 771
 772 u-boot.ldr.srec:        u-boot.ldr
 773                 $(OBJCOPY) ${OBJCFLAGS} -O srec $< $@ -I binary
 774
 775 #
 776 # U-Boot entry point, needed for booting of full-blown U-Boot
 777 # from the SPL U-Boot version.
 778 #
 779 ifndef CONFIG_SYS_UBOOT_START
 780 CONFIG_SYS_UBOOT_START := 0
 781 endif
 782
 783 u-boot.img:     u-boot.bin
 784                 tools/mkimage -A $(ARCH) -T firmware -C none \
 785                 -O u-boot -a $(CONFIG_SYS_TEXT_BASE) \
 786                 -e $(CONFIG_SYS_UBOOT_START) \
 787                 -n $(shell sed -n -e 's/.*U_BOOT_VERSION//p' $(VERSION_FILE) | \
 788                         sed -e 's/"[     ]*$$/ for $(BOARD) board"/') \
 789                 -d $< $@
 790
 791 u-boot.imx: u-boot.bin
 792                 $(MAKE) $(build)=arch/arm/imx-common $(objtree)/u-boot.imx
 793
 794 u-boot.kwb:       u-boot.bin
 795                 tools/mkimage -n $(CONFIG_SYS_KWD_CONFIG) -T kwbimage \
 796                 -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE) -d $< $@
 797
 798 u-boot.pbl:     u-boot.bin
 799                 tools/mkimage -n $(CONFIG_SYS_FSL_PBL_RCW) \
 800                 -R $(CONFIG_SYS_FSL_PBL_PBI) -T pblimage \
 801                 -d $< $@
 802
 803 u-boot.sha1:    u-boot.bin
 804                 tools/ubsha1 u-boot.bin
 805
 806 u-boot.dis:     u-boot
 807                 $(OBJDUMP) -d $< > $@
 808
 809 # $@ is output, $(1) and $(2) are inputs, $(3) is padded intermediate,
 810 # $(4) is pad-to
 811 SPL_PAD_APPEND = \
 812                 $(OBJCOPY) ${OBJCFLAGS} --pad-to=$(4) -I binary -O binary \
 813                 $(1) $(3); \
 814                 cat $(3) $(2) > $@; \
 815                 rm $(3)
 816
 817 ifdef CONFIG_TPL
 818 SPL_PAYLOAD := tpl/u-boot-with-tpl.bin
 819 else
 820 SPL_PAYLOAD := u-boot.bin
 821 endif
 822
 823 u-boot-with-spl.bin: spl/u-boot-spl.bin $(SPL_PAYLOAD)
 824                 $(call SPL_PAD_APPEND,$<,$(SPL_PAYLOAD),spl/u-boot-spl-pad.bin,$(CONFIG_SPL_PAD_TO))
 825
 826 tpl/u-boot-with-tpl.bin: tpl/u-boot-tpl.bin u-boot.bin
 827                 $(call SPL_PAD_APPEND,$<,u-boot.bin,tpl/u-boot-tpl-pad.bin,$(CONFIG_TPL_PAD_TO))
 828
 829 u-boot-with-spl.imx: spl/u-boot-spl.bin u-boot.bin
 830                 $(MAKE) $(build)=arch/arm/imx-common \
 831                         $(OBJTREE)/u-boot-with-spl.imx
 832
 833 u-boot-with-nand-spl.imx: spl/u-boot-spl.bin u-boot.bin
 834                 $(MAKE) $(build)=arch/arm/imx-common \
 835                         $(OBJTREE)/u-boot-with-nand-spl.imx
 836
 837 u-boot.ubl:       u-boot-with-spl.bin
 838                 tools/mkimage -n $(UBL_CONFIG) -T ublimage \
 839                 -e $(CONFIG_SYS_TEXT_BASE) -d $< u-boot.ubl
 840
 841 u-boot.ais:       spl/u-boot-spl.bin u-boot.img
 842                 tools/mkimage -s -n $(if $(CONFIG_AIS_CONFIG_FILE),$(srctree)/$(CONFIG_AIS_CONFIG_FILE:"%"=%),"/dev/null") \
 843                         -T aisimage \
 844                         -e $(CONFIG_SPL_TEXT_BASE) \
 845                         -d spl/u-boot-spl.bin \
 846                         spl/u-boot-spl.ais
 847                 $(OBJCOPY) ${OBJCFLAGS} -I binary \
 848                         --pad-to=$(CONFIG_SPL_MAX_SIZE) -O binary \
 849                         spl/u-boot-spl.ais spl/u-boot-spl-pad.ais
 850                 cat spl/u-boot-spl-pad.ais u-boot.img > u-boot.ais
 851
 852
 853 u-boot.sb:       u-boot.bin spl/u-boot-spl.bin
 854                 $(MAKE) $(build)=$(CPUDIR)/$(SOC)/ $(OBJTREE)/u-boot.sb
 855
 856 # On x600 (SPEAr600) U-Boot is appended to U-Boot SPL.
 857 # Both images are created using mkimage (crc etc), so that the ROM
 858 # bootloader can check its integrity. Padding needs to be done to the
 859 # SPL image (with mkimage header) and not the binary. Otherwise the resulting image
 860 # which is loaded/copied by the ROM bootloader to SRAM doesn't fit.
 861 # The resulting image containing both U-Boot images is called u-boot.spr
 862 u-boot.spr:     u-boot.img spl/u-boot-spl.bin
 863                 tools/mkimage -A $(ARCH) -T firmware -C none \
 864                 -a $(CONFIG_SPL_TEXT_BASE) -e $(CONFIG_SPL_TEXT_BASE) -n XLOADER \
 865                 -d spl/u-boot-spl.bin $@
 866                 $(OBJCOPY) -I binary -O binary \
 867                         --pad-to=$(CONFIG_SPL_PAD_TO) --gap-fill=0xff $@
 868                 cat u-boot.img >> $@
 869
 870 ifneq ($(CONFIG_TEGRA),)
 871 u-boot-nodtb-tegra.bin: spl/u-boot-spl.bin u-boot.bin
 872                 $(OBJCOPY) ${OBJCFLAGS} --pad-to=$(CONFIG_SYS_TEXT_BASE) -O binary spl/u-boot-spl spl/u-boot-spl-pad.bin
 873                 cat spl/u-boot-spl-pad.bin u-boot.bin > $@
 874                 rm spl/u-boot-spl-pad.bin
 875
 876 ifeq ($(CONFIG_OF_SEPARATE),y)
 877 u-boot-dtb-tegra.bin: u-boot-nodtb-tegra.bin dts/dt.dtb
 878                 cat $^ > $@
 879 endif
 880 endif
 881
 882 u-boot-img.bin: spl/u-boot-spl.bin u-boot.img
 883                 cat spl/u-boot-spl.bin u-boot.img > $@
 884
 885 # PPC4xx needs the SPL at the end of the image, since the reset vector
 886 # is located at 0xfffffffc. So we can't use the "u-boot-img.bin" target
 887 # and need to introduce a new build target with the full blown U-Boot
 888 # at the start padded up to the start of the SPL image. And then concat
 889 # the SPL image to the end.
 890 u-boot-img-spl-at-end.bin: spl/u-boot-spl.bin u-boot.img
 891                 $(OBJCOPY) -I binary -O binary --pad-to=$(CONFIG_UBOOT_PAD_TO) \
 892                          --gap-fill=0xff u-boot.img $@
 893                 cat spl/u-boot-spl.bin >> $@
 894
 895 # Create a new ELF from a raw binary file.  This is useful for arm64
 896 # where static relocation needs to be performed on the raw binary,
 897 # but certain simulators only accept an ELF file (but don't do the
 898 # relocation).
 899 # FIXME refactor dts/Makefile to share target/arch detection
 900 u-boot.elf: u-boot.bin
 901         @$(OBJCOPY)  -B aarch64 -I binary -O elf64-littleaarch64 \
 902                 $< u-boot-elf.o
 903         @$(LD) u-boot-elf.o -o $@ \
 904                 --defsym=_start=$(CONFIG_SYS_TEXT_BASE) \
 905                 -Ttext=$(CONFIG_SYS_TEXT_BASE)
 906
 907 ifeq ($(CONFIG_SANDBOX),y)
 908 GEN_UBOOT = \
 909                 $(CC) $(SYMS) -T u-boot.lds \
 910                         -Wl,--start-group $(u-boot-main) -Wl,--end-group \
 911                         $(PLATFORM_LIBS) -Wl,-Map -Wl,u-boot.map -o u-boot
 912 else
 913 GEN_UBOOT = \
 914                 $(LD) $(LDFLAGS) $(LDFLAGS_$(@F)) \
 915                         $(u-boot-init) \
 916                         --start-group $(u-boot-main) --end-group $(PLATFORM_LIBS) \
 917                         -Map u-boot.map -o u-boot
 918 endif
 919
 920 u-boot: $(u-boot-init) $(u-boot-main) u-boot.lds
 921                 $(GEN_UBOOT)
 922 ifeq ($(CONFIG_KALLSYMS),y)
 923                 smap=`$(call SYSTEM_MAP,u-boot) | \
 924                         awk '$$2 ~ /[tTwW]/ {printf $$1 $$3 "\\\\000"}'` ; \
 925                 $(CC) $(c_flags) -DSYSTEM_MAP="\"$${smap}\"" \
 926                         -c $(srctree)/common/system_map.c -o common/system_map.o
 927                 $(GEN_UBOOT) common/system_map.o
 928 endif
 929
 930 # The actual objects are generated when descending,
 931 # make sure no implicit rule kicks in
 932 $(sort $(u-boot-init) $(u-boot-main)): $(u-boot-dirs) ;
 933
 934 # Handle descending into subdirectories listed in $(vmlinux-dirs)
 935 # Preset locale variables to speed up the build process. Limit locale
 936 # tweaks to this spot to avoid wrong language settings when running
 937 # make menuconfig etc.
 938 # Error messages still appears in the original language
 939
 940 PHONY += $(u-boot-dirs)
 941 $(u-boot-dirs): depend prepare scripts
 942         $(Q)$(MAKE) $(build)=$@
 943
 944 tools: $(TIMESTAMP_FILE) $(VERSION_FILE)
 945 # The "tools" are needed early
 946 $(filter-out tools, $(u-boot-dirs)): tools
 947 # The "examples" conditionally depend on U-Boot (say, when USE_PRIVATE_LIBGCC
 948 # is "yes"), so compile examples after U-Boot is compiled.
 949 examples: $(filter-out examples, $(u-boot-dirs))
 950
 951 # Things we need to do before we recursively start building the kernel
 952 # or the modules are listed in "prepare".
 953 # A multi level approach is used. prepareN is processed before prepareN-1.
 954 # archprepare is used in arch Makefiles and when processed asm symlink,
 955 # version.h and scripts_basic is processed / created.
 956
 957 # Listed in dependency order
 958 PHONY += prepare archprepare prepare0 prepare1 prepare2 prepare3
 959
 960 # prepare3 is used to check if we are building in a separate output directory,
 961 # and if so do:
 962 # 1) Check that make has not been executed in the kernel src $(srctree)
 963 prepare3:
 964 ifneq ($(KBUILD_SRC),)
 965         @$(kecho) '  Using $(srctree) as source for u-boot'
 966         $(Q)if [ -f $(srctree)/include/config.mk ]; then \
 967                 echo >&2 "  $(srctree) is not clean, please run 'make mrproper'"; \
 968                 echo >&2 "  in the '$(srctree)' directory.";\
 969                 /bin/false; \
 970         fi;
 971 endif
 972
 973 # prepare2 creates a makefile if using a separate output directory
 974 prepare2: prepare3 outputmakefile
 975
 976 prepare1: prepare2
 977         @:
 978
 979 archprepare: prepare1 scripts_basic
 980
 981 prepare0: archprepare FORCE
 982         @:
 983
 984 # All the preparing..
 985 prepare: prepare0
 986
 987 #
 988 # Auto-generate the autoconf.mk file (which is included by all makefiles)
 989 #
 990 # This target actually generates 2 files; autoconf.mk and autoconf.mk.dep.
 991 # the dep file is only include in this top level makefile to determine when
 992 # to regenerate the autoconf.mk file.
 993
 994 quiet_cmd_autoconf_dep = GEN     $@
 995       cmd_autoconf_dep = $(CC) -x c -DDO_DEPS_ONLY -M $(c_flags) \
 996         -MQ include/autoconf.mk $(srctree)/include/common.h > $@ || rm $@
 997
 998 include/autoconf.mk.dep: include/config.h include/common.h
 999         $(call cmd,autoconf_dep)
1000
1001 quiet_cmd_autoconf = GEN     $@
1002       cmd_autoconf = \
1003         $(CPP) $(c_flags) -DDO_DEPS_ONLY -dM $(srctree)/include/common.h > $@.tmp && \
1004         sed -n -f $(srctree)/tools/scripts/define2mk.sed $@.tmp > $@; \
1005         rm $@.tmp
1006
1007 include/autoconf.mk: include/config.h
1008         $(call cmd,autoconf)
1009
1010 u-boot.lds: $(LDSCRIPT) depend
1011                 $(CPP) $(cpp_flags) $(LDPPFLAGS) -ansi -D__ASSEMBLY__ -P - <$< >$@
1012
1013 nand_spl:       $(TIMESTAMP_FILE) $(VERSION_FILE) depend prepare
1014                 $(MAKE) $(build)=nand_spl/board/$(BOARDDIR) all
1015
1016 u-boot-nand.bin:        nand_spl u-boot.bin
1017                 cat nand_spl/u-boot-spl-16k.bin u-boot.bin > u-boot-nand.bin
1018
1019 spl/u-boot-spl.bin: tools depend prepare
1020                 $(MAKE) obj=spl -f $(srctree)/spl/Makefile all
1021
1022 tpl/u-boot-tpl.bin: tools depend prepare
1023                 $(MAKE) obj=tpl -f $(srctree)/spl/Makefile all CONFIG_TPL_BUILD=y
1024
1025 # Explicitly make _depend in subdirs containing multiple targets to prevent
1026 # parallel sub-makes creating .depend files simultaneously.
1027 depend dep:     $(TIMESTAMP_FILE) $(VERSION_FILE) \
1028                 include/generated/generic-asm-offsets.h \
1029                 include/generated/asm-offsets.h
1030
1031 TAG_SUBDIRS := $(u-boot-dirs) include
1032
1033 FIND := find
1034 FINDFLAGS := -L
1035
1036 PHONY += checkstack
1037
1038 checkstack:
1039         $(OBJDUMP) -d u-boot $$(find . -name u-boot-spl) | \
1040         $(PERL) $(src)/scripts/checkstack.pl $(ARCH)
1041
1042 tags ctags:
1043                 ctags -w -o ctags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \
1044                                                 -name '*.[chS]' -print`
1045
1046 etags:
1047                 etags -a -o $(obj)etags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \
1048                                                 -name '*.[chS]' -print`
1049 cscope:
1050                 $(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) -name '*.[chS]' -print > \
1051                                                 cscope.files
1052                 cscope -b -q -k
1053
1054 SYSTEM_MAP = \
1055                 $(NM) $1 | \
1056                 grep -v '\(compiled\)\|\(\.o$$\)\|\( [aUw] \)\|\(\.\.ng$$\)\|\(LASH[RL]DI\)' | \
1057                 LC_ALL=C sort
1058 System.map:     u-boot
1059                 @$(call SYSTEM_MAP,$<) > $@
1060
1061 checkthumb:
1062         @if test $(call cc-version) -lt 0404; then \
1063                 echo -n '*** Your GCC does not produce working '; \
1064                 echo 'binaries in THUMB mode.'; \
1065                 echo '*** Your board is configured for THUMB mode.'; \
1066                 false; \
1067         fi
1068
1069 # GCC 3.x is reported to have problems generating the type of relocation
1070 # that U-Boot wants.
1071 # See http://lists.denx.de/pipermail/u-boot/2012-September/135156.html
1072 checkgcc4:
1073         @if test $(call cc-version) -lt 0400; then \
1074                 echo -n '*** Your GCC is too old, please upgrade to GCC 4.x or newer'; \
1075                 false; \
1076         fi
1077
1078 checkdtc:
1079         @if test $(call dtc-version) -lt 0104; then \
1080                 echo '*** Your dtc is too old, please upgrade to dtc 1.4 or newer'; \
1081                 false; \
1082         fi
1083
1084 quiet_cmd_offsets = GEN     $@
1085       cmd_offsets = $(srctree)/tools/scripts/make-asm-offsets $< $@
1086
1087 include/generated/generic-asm-offsets.h: lib/asm-offsets.s
1088         $(call cmd,offsets)
1089
1090 quiet_cmd_asm-offsets.s = CC      $@
1091       cmd_asm-offsets.s = mkdir -p lib; \
1092                 $(CC) -DDO_DEPS_ONLY \
1093                 $(c_flags) $(CFLAGS_$(BCURDIR)/$(@F)) $(CFLAGS_$(BCURDIR)) \
1094                 -o $@ $< -c -S
1095
1096 lib/asm-offsets.s: $(srctree)/lib/asm-offsets.c include/config.h
1097         $(call cmd,asm-offsets.s)
1098
1099 include/generated/asm-offsets.h: $(CPUDIR)/$(SOC)/asm-offsets.s
1100         $(call cmd,offsets)
1101
1102 quiet_cmd_soc_asm-offsets.s = CC      $@
1103       cmd_soc_asm-offsets.s = mkdir -p $(CPUDIR)/$(SOC); \
1104         if [ -f $(srctree)/$(CPUDIR)/$(SOC)/asm-offsets.c ];then \
1105                 $(CC) -DDO_DEPS_ONLY \
1106                 $(c_flags) $(CFLAGS_$(BCURDIR)/$(@F)) $(CFLAGS_$(BCURDIR)) \
1107                         -o $@ $(srctree)/$(CPUDIR)/$(SOC)/asm-offsets.c -c -S; \
1108         else \
1109                 touch $@; \
1110         fi
1111
1112 $(CPUDIR)/$(SOC)/asm-offsets.s: include/config.h
1113         $(call cmd,soc_asm-offsets.s)
1114
1115 #########################################################################
1116
1117 # ARM relocations should all be R_ARM_RELATIVE (32-bit) or
1118 # R_AARCH64_RELATIVE (64-bit).
1119 checkarmreloc: u-boot
1120         @RELOC="`$(CROSS_COMPILE)readelf -r -W $< | cut -d ' ' -f 4 | \
1121                 grep R_A | sort -u`"; \
1122         if test "$$RELOC" != "R_ARM_RELATIVE" -a \
1123                  "$$RELOC" != "R_AARCH64_RELATIVE"; then \
1124                 echo "$< contains unexpected relocations: $$RELOC"; \
1125                 false; \
1126         fi
1127
1128 $(VERSION_FILE):
1129                 @mkdir -p $(dir $(VERSION_FILE))
1130                 @( localvers='$(shell $(TOPDIR)/scripts/setlocalversion $(TOPDIR))' ; \
1131                    printf '#define PLAIN_VERSION "%s%s"\n' \
1132                         "$(U_BOOT_VERSION)" "$${localvers}" ; \
1133                    printf '#define U_BOOT_VERSION "U-Boot %s%s"\n' \
1134                         "$(U_BOOT_VERSION)" "$${localvers}" ; \
1135                 ) > $@.tmp
1136                 @( printf '#define CC_VERSION_STRING "%s"\n' \
1137                  '$(shell $(CC) --version | head -n 1)' )>>  $@.tmp
1138                 @( printf '#define LD_VERSION_STRING "%s"\n' \
1139                  '$(shell $(LD) -v | head -n 1)' )>>  $@.tmp
1140                 @cmp -s $@ $@.tmp && rm -f $@.tmp || mv -f $@.tmp $@
1141
1142 $(TIMESTAMP_FILE):
1143                 @mkdir -p $(dir $(TIMESTAMP_FILE))
1144                 @LC_ALL=C date +'#define U_BOOT_DATE "%b %d %C%y"' > $@.tmp
1145                 @LC_ALL=C date +'#define U_BOOT_TIME "%T"' >> $@.tmp
1146                 @cmp -s $@ $@.tmp && rm -f $@.tmp || mv -f $@.tmp $@
1147
1148 env: depend scripts_basic
1149         $(Q)$(MAKE) $(build)=tools/$@
1150
1151 tools-all: HOST_TOOLS_ALL=y
1152 tools-all: env tools ;
1153
1154 .PHONY : CHANGELOG
1155 CHANGELOG:
1156         git log --no-merges U-Boot-1_1_5.. | \
1157         unexpand -a | sed -e 's/\s\s*$$//' > $@
1158
1159 include/license.h: tools/bin2header COPYING
1160         cat COPYING | gzip -9 -c | ./tools/bin2header license_gzip > include/license.h
1161 #########################################################################
1162
1163 ###
1164 # Cleaning is done on three levels.
1165 # make clean     Delete most generated files
1166 #                Leave enough to build external modules
1167 # make mrproper  Delete the current configuration, and all generated files
1168 # make distclean Remove editor backup files, patch leftover files and the like
1169
1170 # Directories & files removed with 'make clean'
1171 CLEAN_DIRS  += $(MODVERDIR)
1172 CLEAN_FILES += u-boot.lds include/bmp_logo.h include/bmp_logo_data.h \
1173                board/*/config.tmp board/*/*/config.tmp \
1174                include/autoconf.mk* include/spl-autoconf.mk \
1175                include/tpl-autoconf.mk
1176
1177 # Directories & files removed with 'make clobber'
1178 CLOBBER_DIRS  += $(patsubst %,spl/%, $(filter-out Makefile, \
1179                  $(shell ls -1 spl 2>/dev/null))) \
1180                  tpl
1181 CLOBBER_FILES += u-boot* MLO* SPL System.map nand_spl/u-boot*
1182
1183 # Directories & files removed with 'make mrproper'
1184 MRPROPER_DIRS  += include/config include/generated
1185 MRPROPER_FILES += .config .config.old \
1186                   tags TAGS cscope* GPATH GTAGS GRTAGS GSYMS \
1187                   include/config.h include/config.mk
1188
1189 # clean - Delete most, but leave enough to build external modules
1190 #
1191 clean: rm-dirs  := $(CLEAN_DIRS)
1192 clean: rm-files := $(CLEAN_FILES)
1193
1194 clean-dirs      := $(foreach f,$(u-boot-alldirs),$(if $(wildcard $f/Makefile),$f))
1195
1196 clean-dirs      := $(addprefix _clean_, $(clean-dirs) doc/DocBook)
1197
1198 PHONY += $(clean-dirs) clean archclean
1199 $(clean-dirs):
1200         $(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$@)
1201
1202 # TODO: Do not use *.cfgtmp
1203 clean: $(clean-dirs)
1204         $(call cmd,rmdirs)
1205         $(call cmd,rmfiles)
1206         @find $(if $(KBUILD_EXTMOD), $(KBUILD_EXTMOD), .) $(RCS_FIND_IGNORE) \
1207                 \( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \
1208                 -o -name '*.ko.*' -o -name '*.su' -o -name '*.cfgtmp' \
1209                 -o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \
1210                 -o -name '*.symtypes' -o -name 'modules.order' \
1211                 -o -name modules.builtin -o -name '.tmp_*.o.*' \
1212                 -o -name '*.gcno' \) -type f -print | xargs rm -f
1213         @find $(if $(KBUILD_EXTMOD), $(KBUILD_EXTMOD), .) $(RCS_FIND_IGNORE) \
1214                 -path './nand_spl/*' -type l -print | xargs rm -f
1215
1216 # clobber
1217 #
1218 clobber: rm-dirs  := $(CLOBBER_DIRS)
1219 clobber: rm-files := $(CLOBBER_FILES)
1220
1221 PHONY += clobber
1222
1223 clobber: clean
1224         $(call cmd,rmdirs)
1225         $(call cmd,rmfiles)
1226
1227 # mrproper - Delete all generated files, including .config
1228 #
1229 mrproper: rm-dirs  := $(wildcard $(MRPROPER_DIRS))
1230 mrproper: rm-files := $(wildcard $(MRPROPER_FILES))
1231 mrproper-dirs      := $(addprefix _mrproper_,scripts)
1232
1233 PHONY += $(mrproper-dirs) mrproper archmrproper
1234 $(mrproper-dirs):
1235         $(Q)$(MAKE) $(clean)=$(patsubst _mrproper_%,%,$@)
1236
1237 mrproper: clobber $(mrproper-dirs)
1238         $(call cmd,rmdirs)
1239         $(call cmd,rmfiles)
1240         @rm -f arch/*/include/asm/arch arch/*/include/asm/proc
1241
1242 # distclean
1243 #
1244 PHONY += distclean
1245
1246 distclean: mrproper
1247         @find $(srctree) $(RCS_FIND_IGNORE) \
1248                 \( -name '*.orig' -o -name '*.rej' -o -name '*~' \
1249                 -o -name '*.bak' -o -name '#*#' -o -name '.*.orig' \
1250                 -o -name '.*.rej' \
1251                 -o -name '*%' -o -name '.*.cmd' -o -name 'core' \) \
1252                 -type f -print | xargs rm -f
1253
1254 backup:
1255         F=`basename $(TOPDIR)` ; cd .. ; \
1256         gtar --force-local -zcvf `LC_ALL=C date "+$$F-%Y-%m-%d-%T.tar.gz"` $$F
1257
1258
1259 # Documentation targets
1260 # ---------------------------------------------------------------------------
1261 %docs: scripts_basic FORCE
1262         $(Q)$(MAKE) $(build)=scripts build_docproc
1263         $(Q)$(MAKE) $(build)=doc/DocBook $@
1264
1265 # Dummies...
1266 PHONY += prepare scripts
1267 prepare: ;
1268 scripts: ;
1269
1270 endif #ifeq ($(config-targets),1)
1271 endif #ifeq ($(mixed-targets),1)
1272
1273 quiet_cmd_rmdirs = $(if $(wildcard $(rm-dirs)),CLEAN   $(wildcard $(rm-dirs)))
1274       cmd_rmdirs = rm -rf $(rm-dirs)
1275
1276 quiet_cmd_rmfiles = $(if $(wildcard $(rm-files)),CLEAN   $(wildcard $(rm-files)))
1277       cmd_rmfiles = rm -f $(rm-files)
1278
1279 # Shorthand for $(Q)$(MAKE) -f scripts/Makefile.clean obj=dir
1280 # Usage:
1281 # $(Q)$(MAKE) $(clean)=dir
1282 clean := -f $(if $(KBUILD_SRC),$(srctree)/)scripts/Makefile.clean obj
1283
1284 endif   # skip-makefile
1285
1286 PHONY += FORCE
1287 FORCE:
1288
1289 # Declare the contents of the .PHONY variable as phony.  We keep that
1290 # information in a variable so we can use it in if_changed and friends.
1291 .PHONY: $(PHONY)