Makefile

   1 VERSION = 2015
   2 PATCHLEVEL = 01
   3 SUBLEVEL =
   4 EXTRAVERSION = -rc3
   5 NAME =
   6
   7 # *DOCUMENTATION*
   8 # To see a list of typical targets execute "make help"
   9 # More info can be located in ./README
  10 # Comments in this file are targeted only to the developer, do not
  11 # expect to learn how to build the kernel reading this file.
  12
  13 # Do not use make's built-in rules and variables
  14 # (this increases performance and avoids hard-to-debug behaviour);
  15 MAKEFLAGS += -rR
  16
  17 # Avoid funny character set dependencies
  18 unexport LC_ALL
  19 LC_COLLATE=C
  20 LC_NUMERIC=C
  21 export LC_COLLATE LC_NUMERIC
  22
  23 # Avoid interference with shell env settings
  24 unexport GREP_OPTIONS
  25
  26 # We are using a recursive build, so we need to do a little thinking
  27 # to get the ordering right.
  28 #
  29 # Most importantly: sub-Makefiles should only ever modify files in
  30 # their own directory. If in some directory we have a dependency on
  31 # a file in another dir (which doesn't happen often, but it's often
  32 # unavoidable when linking the built-in.o targets which finally
  33 # turn into vmlinux), we will call a sub make in that other dir, and
  34 # after that we are sure that everything which is in that other dir
  35 # is now up to date.
  36 #
  37 # The only cases where we need to modify files which have global
  38 # effects are thus separated out and done before the recursive
  39 # descending is started. They are now explicitly listed as the
  40 # prepare rule.
  41
  42 # Beautify output
  43 # ---------------------------------------------------------------------------
  44 #
  45 # Normally, we echo the whole command before executing it. By making
  46 # that echo $($(quiet)$(cmd)), we now have the possibility to set
  47 # $(quiet) to choose other forms of output instead, e.g.
  48 #
  49 #         quiet_cmd_cc_o_c = Compiling $(RELDIR)/$@
  50 #         cmd_cc_o_c       = $(CC) $(c_flags) -c -o $@ $<
  51 #
  52 # If $(quiet) is empty, the whole command will be printed.
  53 # If it is set to "quiet_", only the short version will be printed.
  54 # If it is set to "silent_", nothing will be printed at all, since
  55 # the variable $(silent_cmd_cc_o_c) doesn't exist.
  56 #
  57 # A simple variant is to prefix commands with $(Q) - that's useful
  58 # for commands that shall be hidden in non-verbose mode.
  59 #
  60 #       $(Q)ln $@ :<
  61 #
  62 # If KBUILD_VERBOSE equals 0 then the above command will be hidden.
  63 # If KBUILD_VERBOSE equals 1 then the above command is displayed.
  64 #
  65 # To put more focus on warnings, be less verbose as default
  66 # Use 'make V=1' to see the full commands
  67
  68 ifeq ("$(origin V)", "command line")
  69   KBUILD_VERBOSE = $(V)
  70 endif
  71 ifndef KBUILD_VERBOSE
  72   KBUILD_VERBOSE = 0
  73 endif
  74
  75 ifeq ($(KBUILD_VERBOSE),1)
  76   quiet =
  77   Q =
  78 else
  79   quiet=quiet_
  80   Q = @
  81 endif
  82
  83 # If the user is running make -s (silent mode), suppress echoing of
  84 # commands
  85
  86 ifneq ($(filter 4.%,$(MAKE_VERSION)),)  # make-4
  87 ifneq ($(filter %s ,$(firstword x$(MAKEFLAGS))),)
  88   quiet=silent_
  89 endif
  90 else                                    # make-3.8x
  91 ifneq ($(filter s% -s%,$(MAKEFLAGS)),)
  92   quiet=silent_
  93 endif
  94 endif
  95
  96 export quiet Q KBUILD_VERBOSE
  97
  98 # kbuild supports saving output files in a separate directory.
  99 # To locate output files in a separate directory two syntaxes are supported.
 100 # In both cases the working directory must be the root of the kernel src.
 101 # 1) O=
 102 # Use "make O=dir/to/store/output/files/"
 103 #
 104 # 2) Set KBUILD_OUTPUT
 105 # Set the environment variable KBUILD_OUTPUT to point to the directory
 106 # where the output files shall be placed.
 107 # export KBUILD_OUTPUT=dir/to/store/output/files/
 108 # make
 109 #
 110 # The O= assignment takes precedence over the KBUILD_OUTPUT environment
 111 # variable.
 112
 113 # KBUILD_SRC is set on invocation of make in OBJ directory
 114 # KBUILD_SRC is not intended to be used by the regular user (for now)
 115 ifeq ($(KBUILD_SRC),)
 116
 117 # OK, Make called in directory where kernel src resides
 118 # Do we want to locate output files in a separate directory?
 119 ifeq ("$(origin O)", "command line")
 120   KBUILD_OUTPUT := $(O)
 121 endif
 122
 123 # That's our default target when none is given on the command line
 124 PHONY := _all
 125 _all:
 126
 127 # Cancel implicit rules on top Makefile
 128 $(CURDIR)/Makefile Makefile: ;
 129
 130 ifneq ($(KBUILD_OUTPUT),)
 131 # Invoke a second make in the output directory, passing relevant variables
 132 # check that the output directory actually exists
 133 saved-output := $(KBUILD_OUTPUT)
 134 KBUILD_OUTPUT := $(shell mkdir -p $(KBUILD_OUTPUT) && cd $(KBUILD_OUTPUT) \
 135                                                                 && /bin/pwd)
 136 $(if $(KBUILD_OUTPUT),, \
 137      $(error failed to create output directory "$(saved-output)"))
 138
 139 PHONY += $(MAKECMDGOALS) sub-make
 140
 141 $(filter-out _all sub-make $(CURDIR)/Makefile, $(MAKECMDGOALS)) _all: sub-make
 142         @:
 143
 144 sub-make: FORCE
 145         $(Q)$(MAKE) -C $(KBUILD_OUTPUT) KBUILD_SRC=$(CURDIR) \
 146         -f $(CURDIR)/Makefile $(filter-out _all sub-make,$(MAKECMDGOALS))
 147
 148 # Leave processing to above invocation of make
 149 skip-makefile := 1
 150 endif # ifneq ($(KBUILD_OUTPUT),)
 151 endif # ifeq ($(KBUILD_SRC),)
 152
 153 # We process the rest of the Makefile if this is the final invocation of make
 154 ifeq ($(skip-makefile),)
 155
 156 # Do not print "Entering directory ...",
 157 # but we want to display it when entering to the output directory
 158 # so that IDEs/editors are able to understand relative filenames.
 159 MAKEFLAGS += --no-print-directory
 160
 161 # Call a source code checker (by default, "sparse") as part of the
 162 # C compilation.
 163 #
 164 # Use 'make C=1' to enable checking of only re-compiled files.
 165 # Use 'make C=2' to enable checking of *all* source files, regardless
 166 # of whether they are re-compiled or not.
 167 #
 168 # See the file "Documentation/sparse.txt" for more details, including
 169 # where to get the "sparse" utility.
 170
 171 ifeq ("$(origin C)", "command line")
 172   KBUILD_CHECKSRC = $(C)
 173 endif
 174 ifndef KBUILD_CHECKSRC
 175   KBUILD_CHECKSRC = 0
 176 endif
 177
 178 # Use make M=dir to specify directory of external module to build
 179 # Old syntax make ... SUBDIRS=$PWD is still supported
 180 # Setting the environment variable KBUILD_EXTMOD take precedence
 181 ifdef SUBDIRS
 182   KBUILD_EXTMOD ?= $(SUBDIRS)
 183 endif
 184
 185 ifeq ("$(origin M)", "command line")
 186   KBUILD_EXTMOD := $(M)
 187 endif
 188
 189 # If building an external module we do not care about the all: rule
 190 # but instead _all depend on modules
 191 PHONY += all
 192 ifeq ($(KBUILD_EXTMOD),)
 193 _all: all
 194 else
 195 _all: modules
 196 endif
 197
 198 ifeq ($(KBUILD_SRC),)
 199         # building in the source tree
 200         srctree := .
 201 else
 202         ifeq ($(KBUILD_SRC)/,$(dir $(CURDIR)))
 203                 # building in a subdirectory of the source tree
 204                 srctree := ..
 205         else
 206                 srctree := $(KBUILD_SRC)
 207         endif
 208 endif
 209 objtree         := .
 210 src             := $(srctree)
 211 obj             := $(objtree)
 212
 213 VPATH           := $(srctree)$(if $(KBUILD_EXTMOD),:$(KBUILD_EXTMOD))
 214
 215 export srctree objtree VPATH
 216
 217 # Make sure CDPATH settings don't interfere
 218 unexport CDPATH
 219
 220 #########################################################################
 221
 222 HOSTARCH := $(shell uname -m | \
 223         sed -e s/i.86/x86/ \
 224             -e s/sun4u/sparc64/ \
 225             -e s/arm.*/arm/ \
 226             -e s/sa110/arm/ \
 227             -e s/ppc64/powerpc/ \
 228             -e s/ppc/powerpc/ \
 229             -e s/macppc/powerpc/\
 230             -e s/sh.*/sh/)
 231
 232 HOSTOS := $(shell uname -s | tr '[:upper:]' '[:lower:]' | \
 233             sed -e 's/\(cygwin\).*/cygwin/')
 234
 235 export  HOSTARCH HOSTOS
 236
 237 #########################################################################
 238
 239 # set default to nothing for native builds
 240 ifeq ($(HOSTARCH),$(ARCH))
 241 CROSS_COMPILE ?=
 242 endif
 243
 244 KCONFIG_CONFIG  ?= .config
 245 export KCONFIG_CONFIG
 246
 247 # SHELL used by kbuild
 248 CONFIG_SHELL := $(shell if [ -x "$$BASH" ]; then echo $$BASH; \
 249           else if [ -x /bin/bash ]; then echo /bin/bash; \
 250           else echo sh; fi ; fi)
 251
 252 HOSTCC       = cc
 253 HOSTCXX      = c++
 254 HOSTCFLAGS   = -Wall -Wstrict-prototypes -O2 -fomit-frame-pointer
 255 HOSTCXXFLAGS = -O2
 256
 257 ifeq ($(HOSTOS),cygwin)
 258 HOSTCFLAGS      += -ansi
 259 endif
 260
 261 # Mac OS X / Darwin's C preprocessor is Apple specific.  It
 262 # generates numerous errors and warnings.  We want to bypass it
 263 # and use GNU C's cpp.  To do this we pass the -traditional-cpp
 264 # option to the compiler.  Note that the -traditional-cpp flag
 265 # DOES NOT have the same semantics as GNU C's flag, all it does
 266 # is invoke the GNU preprocessor in stock ANSI/ISO C fashion.
 267 #
 268 # Apple's linker is similar, thanks to the new 2 stage linking
 269 # multiple symbol definitions are treated as errors, hence the
 270 # -multiply_defined suppress option to turn off this error.
 271 #
 272 ifeq ($(HOSTOS),darwin)
 273 # get major and minor product version (e.g. '10' and '6' for Snow Leopard)
 274 DARWIN_MAJOR_VERSION    = $(shell sw_vers -productVersion | cut -f 1 -d '.')
 275 DARWIN_MINOR_VERSION    = $(shell sw_vers -productVersion | cut -f 2 -d '.')
 276
 277 os_x_before     = $(shell if [ $(DARWIN_MAJOR_VERSION) -le $(1) -a \
 278         $(DARWIN_MINOR_VERSION) -le $(2) ] ; then echo "$(3)"; else echo "$(4)"; fi ;)
 279
 280 # Snow Leopards build environment has no longer restrictions as described above
 281 HOSTCC       = $(call os_x_before, 10, 5, "cc", "gcc")
 282 HOSTCFLAGS  += $(call os_x_before, 10, 4, "-traditional-cpp")
 283 HOSTLDFLAGS += $(call os_x_before, 10, 5, "-multiply_defined suppress")
 284 endif
 285
 286 # Decide whether to build built-in, modular, or both.
 287 # Normally, just do built-in.
 288
 289 KBUILD_MODULES :=
 290 KBUILD_BUILTIN := 1
 291
 292 # If we have only "make modules", don't compile built-in objects.
 293 # When we're building modules with modversions, we need to consider
 294 # the built-in objects during the descend as well, in order to
 295 # make sure the checksums are up to date before we record them.
 296
 297 ifeq ($(MAKECMDGOALS),modules)
 298   KBUILD_BUILTIN := $(if $(CONFIG_MODVERSIONS),1)
 299 endif
 300
 301 # If we have "make <whatever> modules", compile modules
 302 # in addition to whatever we do anyway.
 303 # Just "make" or "make all" shall build modules as well
 304
 305 # U-Boot does not need modules
 306 #ifneq ($(filter all _all modules,$(MAKECMDGOALS)),)
 307 #  KBUILD_MODULES := 1
 308 #endif
 309
 310 #ifeq ($(MAKECMDGOALS),)
 311 #  KBUILD_MODULES := 1
 312 #endif
 313
 314 export KBUILD_MODULES KBUILD_BUILTIN
 315 export KBUILD_CHECKSRC KBUILD_SRC KBUILD_EXTMOD
 316
 317 # Look for make include files relative to root of kernel src
 318 MAKEFLAGS += --include-dir=$(srctree)
 319
 320 # We need some generic definitions (do not try to remake the file).
 321 $(srctree)/scripts/Kbuild.include: ;
 322 include $(srctree)/scripts/Kbuild.include
 323
 324 # Make variables (CC, etc...)
 325
 326 AS              = $(CROSS_COMPILE)as
 327 # Always use GNU ld
 328 ifneq ($(shell $(CROSS_COMPILE)ld.bfd -v 2> /dev/null),)
 329 LD              = $(CROSS_COMPILE)ld.bfd
 330 else
 331 LD              = $(CROSS_COMPILE)ld
 332 endif
 333 CC              = $(CROSS_COMPILE)gcc
 334 CPP             = $(CC) -E
 335 AR              = $(CROSS_COMPILE)ar
 336 NM              = $(CROSS_COMPILE)nm
 337 LDR             = $(CROSS_COMPILE)ldr
 338 STRIP           = $(CROSS_COMPILE)strip
 339 OBJCOPY         = $(CROSS_COMPILE)objcopy
 340 OBJDUMP         = $(CROSS_COMPILE)objdump
 341 AWK             = awk
 342 PERL            = perl
 343 PYTHON          = python
 344 DTC             = dtc
 345 CHECK           = sparse
 346
 347 CHECKFLAGS     := -D__linux__ -Dlinux -D__STDC__ -Dunix -D__unix__ \
 348                   -Wbitwise -Wno-return-void -D__CHECK_ENDIAN__ $(CF)
 349
 350 KBUILD_CPPFLAGS := -D__KERNEL__ -D__UBOOT__
 351
 352 KBUILD_CFLAGS   := -Wall -Wstrict-prototypes \
 353                    -Wno-format-security \
 354                    -fno-builtin -ffreestanding
 355 KBUILD_AFLAGS   := -D__ASSEMBLY__
 356
 357 # Read UBOOTRELEASE from include/config/uboot.release (if it exists)
 358 UBOOTRELEASE = $(shell cat include/config/uboot.release 2> /dev/null)
 359 UBOOTVERSION = $(VERSION)$(if $(PATCHLEVEL),.$(PATCHLEVEL)$(if $(SUBLEVEL),.$(SUBLEVEL)))$(EXTRAVERSION)
 360
 361 export VERSION PATCHLEVEL SUBLEVEL UBOOTRELEASE UBOOTVERSION
 362 export ARCH CPU BOARD VENDOR SOC CPUDIR BOARDDIR
 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 PERL PYTHON
 366 export HOSTCXX HOSTCXXFLAGS DTC CHECK CHECKFLAGS
 367
 368 export KBUILD_CPPFLAGS NOSTDINC_FLAGS UBOOTINCLUDE OBJCOPYFLAGS LDFLAGS
 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 export RCS_FIND_IGNORE := \( -name SCCS -o -name BitKeeper -o -name .svn -o    \
 379                           -name CVS -o -name .pc -o -name .hg -o -name .git \) \
 380                           -prune -o
 381 export RCS_TAR_IGNORE := --exclude SCCS --exclude BitKeeper --exclude .svn \
 382                          --exclude CVS --exclude .pc --exclude .hg --exclude .git
 383
 384 # ===========================================================================
 385 # Rules shared between *config targets and build targets
 386
 387 # Basic helpers built in scripts/
 388 PHONY += scripts_basic
 389 scripts_basic:
 390         $(Q)$(MAKE) $(build)=scripts/basic
 391         $(Q)rm -f .tmp_quiet_recordmcount
 392
 393 # To avoid any implicit rule to kick in, define an empty command.
 394 scripts/basic/%: scripts_basic ;
 395
 396 PHONY += outputmakefile
 397 # outputmakefile generates a Makefile in the output directory, if using a
 398 # separate output directory. This allows convenient use of make in the
 399 # output directory.
 400 outputmakefile:
 401 ifneq ($(KBUILD_SRC),)
 402         $(Q)ln -fsn $(srctree) source
 403         $(Q)$(CONFIG_SHELL) $(srctree)/scripts/mkmakefile \
 404             $(srctree) $(objtree) $(VERSION) $(PATCHLEVEL)
 405 endif
 406
 407 # To make sure we do not include .config for any of the *config targets
 408 # catch them early, and hand them over to scripts/kconfig/Makefile
 409 # It is allowed to specify more targets when calling make, including
 410 # mixing *config targets and build targets.
 411 # For example 'make oldconfig all'.
 412 # Detect when mixed targets is specified, and make a second invocation
 413 # of make so .config is not included in this case either (for *config).
 414
 415 version_h := include/generated/version_autogenerated.h
 416 timestamp_h := include/generated/timestamp_autogenerated.h
 417
 418 no-dot-config-targets := clean clobber mrproper distclean \
 419                          help %docs check% coccicheck \
 420                          ubootversion backup
 421
 422 config-targets := 0
 423 mixed-targets  := 0
 424 dot-config     := 1
 425
 426 ifneq ($(filter $(no-dot-config-targets), $(MAKECMDGOALS)),)
 427         ifeq ($(filter-out $(no-dot-config-targets), $(MAKECMDGOALS)),)
 428                 dot-config := 0
 429         endif
 430 endif
 431
 432 ifeq ($(KBUILD_EXTMOD),)
 433         ifneq ($(filter config %config,$(MAKECMDGOALS)),)
 434                 config-targets := 1
 435                 ifneq ($(filter-out config %config,$(MAKECMDGOALS)),)
 436                         mixed-targets := 1
 437                 endif
 438         endif
 439 endif
 440
 441 ifeq ($(mixed-targets),1)
 442 # ===========================================================================
 443 # We're called with mixed targets (*config and build targets).
 444 # Handle them one by one.
 445
 446 PHONY += $(MAKECMDGOALS) __build_one_by_one
 447
 448 $(filter-out __build_one_by_one, $(MAKECMDGOALS)): __build_one_by_one
 449         @:
 450
 451 __build_one_by_one:
 452         $(Q)set -e; \
 453         for i in $(MAKECMDGOALS); do \
 454                 $(MAKE) -f $(srctree)/Makefile $$i; \
 455         done
 456
 457 else
 458 ifeq ($(config-targets),1)
 459 # ===========================================================================
 460 # *config targets only - make sure prerequisites are updated, and descend
 461 # in scripts/kconfig to make the *config target
 462
 463 KBUILD_DEFCONFIG := sandbox_defconfig
 464 export KBUILD_DEFCONFIG KBUILD_KCONFIG
 465
 466 config: scripts_basic outputmakefile FORCE
 467         +$(Q)$(CONFIG_SHELL) $(srctree)/scripts/multiconfig.sh $@
 468
 469 %config: scripts_basic outputmakefile FORCE
 470         +$(Q)$(CONFIG_SHELL) $(srctree)/scripts/multiconfig.sh $@
 471
 472 else
 473 # ===========================================================================
 474 # Build targets only - this includes vmlinux, arch specific targets, clean
 475 # targets and others. In general all targets except *config targets.
 476
 477 ifeq ($(dot-config),1)
 478 # Read in config
 479 -include include/config/auto.conf
 480
 481 # Read in dependencies to all Kconfig* files, make sure to run
 482 # oldconfig if changes are detected.
 483 -include include/config/auto.conf.cmd
 484
 485 # To avoid any implicit rule to kick in, define an empty command
 486 $(KCONFIG_CONFIG) include/config/auto.conf.cmd: ;
 487
 488 # If .config is newer than include/config/auto.conf, someone tinkered
 489 # with it and forgot to run make oldconfig.
 490 # if auto.conf.cmd is missing then we are probably in a cleaned tree so
 491 # we execute the config step to be sure to catch updated Kconfig files
 492 include/config/%.conf: $(KCONFIG_CONFIG) include/config/auto.conf.cmd
 493         $(Q)$(MAKE) -f $(srctree)/Makefile silentoldconfig
 494
 495 -include include/autoconf.mk
 496 -include include/autoconf.mk.dep
 497
 498 # We want to include arch/$(ARCH)/config.mk only when include/config/auto.conf
 499 # is up-to-date. When we switch to a different board configuration, old CONFIG
 500 # macros are still remaining in include/config/auto.conf. Without the following
 501 # gimmick, wrong config.mk would be included leading nasty warnings/errors.
 502 autoconf_is_current := $(if $(wildcard $(KCONFIG_CONFIG)),$(shell find . \
 503                 -path ./include/config/auto.conf -newer $(KCONFIG_CONFIG)))
 504 ifneq ($(autoconf_is_current),)
 505 include $(srctree)/config.mk
 506 include $(srctree)/arch/$(ARCH)/Makefile
 507 endif
 508
 509 # If board code explicitly specified LDSCRIPT or CONFIG_SYS_LDSCRIPT, use
 510 # that (or fail if absent).  Otherwise, search for a linker script in a
 511 # standard location.
 512
 513 ifndef LDSCRIPT
 514         #LDSCRIPT := $(srctree)/board/$(BOARDDIR)/u-boot.lds.debug
 515         ifdef CONFIG_SYS_LDSCRIPT
 516                 # need to strip off double quotes
 517                 LDSCRIPT := $(srctree)/$(CONFIG_SYS_LDSCRIPT:"%"=%)
 518         endif
 519 endif
 520
 521 # If there is no specified link script, we look in a number of places for it
 522 ifndef LDSCRIPT
 523         ifeq ($(wildcard $(LDSCRIPT)),)
 524                 LDSCRIPT := $(srctree)/board/$(BOARDDIR)/u-boot.lds
 525         endif
 526         ifeq ($(wildcard $(LDSCRIPT)),)
 527                 LDSCRIPT := $(srctree)/$(CPUDIR)/u-boot.lds
 528         endif
 529         ifeq ($(wildcard $(LDSCRIPT)),)
 530                 LDSCRIPT := $(srctree)/arch/$(ARCH)/cpu/u-boot.lds
 531         endif
 532 endif
 533
 534 else
 535 # Dummy target needed, because used as prerequisite
 536 include/config/auto.conf: ;
 537 endif # $(dot-config)
 538
 539 ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE
 540 KBUILD_CFLAGS   += -Os
 541 else
 542 KBUILD_CFLAGS   += -O2
 543 endif
 544
 545 ifdef BUILD_TAG
 546 KBUILD_CFLAGS += -DBUILD_TAG='"$(BUILD_TAG)"'
 547 endif
 548
 549 KBUILD_CFLAGS += $(call cc-option,-fno-stack-protector)
 550
 551 KBUILD_CFLAGS   += -g
 552 # $(KBUILD_AFLAGS) sets -g, which causes gcc to pass a suitable -g<format>
 553 # option to the assembler.
 554 KBUILD_AFLAGS   += -g
 555
 556 # Report stack usage if supported
 557 ifeq ($(shell $(CONFIG_SHELL) $(srctree)/scripts/gcc-stack-usage.sh $(CC)),y)
 558         KBUILD_CFLAGS += -fstack-usage
 559 endif
 560
 561 KBUILD_CFLAGS += $(call cc-option,-Wno-format-nonliteral)
 562
 563 # turn jbsr into jsr for m68k
 564 ifeq ($(ARCH),m68k)
 565 ifeq ($(findstring 3.4,$(shell $(CC) --version)),3.4)
 566 KBUILD_AFLAGS += -Wa,-gstabs,-S
 567 endif
 568 endif
 569
 570 # Prohibit date/time macros, which would make the build non-deterministic
 571 KBUILD_CFLAGS   += $(call cc-option,-Werror=date-time)
 572
 573 ifneq ($(CONFIG_SYS_TEXT_BASE),)
 574 KBUILD_CPPFLAGS += -DCONFIG_SYS_TEXT_BASE=$(CONFIG_SYS_TEXT_BASE)
 575 endif
 576
 577 export CONFIG_SYS_TEXT_BASE
 578
 579 include $(srctree)/scripts/Makefile.extrawarn
 580
 581 # Add user supplied CPPFLAGS, AFLAGS and CFLAGS as the last assignments
 582 KBUILD_CPPFLAGS += $(KCPPFLAGS)
 583 KBUILD_AFLAGS += $(KAFLAGS)
 584 KBUILD_CFLAGS += $(KCFLAGS)
 585
 586 # Use UBOOTINCLUDE when you must reference the include/ directory.
 587 # Needed to be compatible with the O= option
 588 UBOOTINCLUDE    := \
 589                 -Iinclude \
 590                 $(if $(KBUILD_SRC), -I$(srctree)/include) \
 591                 -I$(srctree)/arch/$(ARCH)/include \
 592                 -include $(srctree)/include/linux/kconfig.h
 593
 594 NOSTDINC_FLAGS += -nostdinc -isystem $(shell $(CC) -print-file-name=include)
 595 CHECKFLAGS     += $(NOSTDINC_FLAGS)
 596
 597 # FIX ME
 598 cpp_flags := $(KBUILD_CPPFLAGS) $(PLATFORM_CPPFLAGS) $(UBOOTINCLUDE) \
 599                                                         $(NOSTDINC_FLAGS)
 600 c_flags := $(KBUILD_CFLAGS) $(cpp_flags)
 601
 602 #########################################################################
 603 # U-Boot objects....order is important (i.e. start must be first)
 604
 605 HAVE_VENDOR_COMMON_LIB = $(if $(wildcard $(srctree)/board/$(VENDOR)/common/Makefile),y,n)
 606
 607 libs-y += lib/
 608 libs-$(HAVE_VENDOR_COMMON_LIB) += board/$(VENDOR)/common/
 609 libs-$(CONFIG_OF_EMBED) += dts/
 610 libs-y += fs/
 611 libs-y += net/
 612 libs-y += disk/
 613 libs-y += drivers/
 614 libs-y += drivers/dma/
 615 libs-y += drivers/gpio/
 616 libs-y += drivers/i2c/
 617 libs-y += drivers/mmc/
 618 libs-y += drivers/mtd/
 619 libs-$(CONFIG_CMD_NAND) += drivers/mtd/nand/
 620 libs-y += drivers/mtd/onenand/
 621 libs-$(CONFIG_CMD_UBI) += drivers/mtd/ubi/
 622 libs-y += drivers/mtd/spi/
 623 libs-y += drivers/net/
 624 libs-y += drivers/net/phy/
 625 libs-y += drivers/pci/
 626 libs-y += drivers/power/ \
 627         drivers/power/fuel_gauge/ \
 628         drivers/power/mfd/ \
 629         drivers/power/pmic/ \
 630         drivers/power/battery/
 631 libs-y += drivers/spi/
 632 libs-$(CONFIG_FMAN_ENET) += drivers/net/fm/
 633 libs-$(CONFIG_SYS_FSL_DDR) += drivers/ddr/fsl/
 634 libs-y += drivers/serial/
 635 libs-y += drivers/usb/eth/
 636 libs-y += drivers/usb/gadget/
 637 libs-y += drivers/usb/host/
 638 libs-y += drivers/usb/musb/
 639 libs-y += drivers/usb/musb-new/
 640 libs-y += drivers/usb/phy/
 641 libs-y += drivers/usb/ulpi/
 642 libs-y += common/
 643 libs-$(CONFIG_API) += api/
 644 libs-$(CONFIG_HAS_POST) += post/
 645 libs-y += test/
 646 libs-y += test/dm/
 647
 648 libs-y += $(if $(BOARDDIR),board/$(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 := $(libs-y)
 660
 661
 662 # Add GCC lib
 663 ifeq ($(CONFIG_USE_PRIVATE_LIBGCC),y)
 664 PLATFORM_LIBGCC = arch/$(ARCH)/lib/lib.a
 665 else
 666 PLATFORM_LIBGCC := -L $(shell dirname `$(CC) $(c_flags) -print-libgcc-file-name`) -lgcc
 667 endif
 668 PLATFORM_LIBS += $(PLATFORM_LIBGCC)
 669 export PLATFORM_LIBS
 670 export PLATFORM_LIBGCC
 671
 672 # Special flags for CPP when processing the linker script.
 673 # Pass the version down so we can handle backwards compatibility
 674 # on the fly.
 675 LDPPFLAGS += \
 676         -include $(srctree)/include/u-boot/u-boot.lds.h \
 677         -DCPUDIR=$(CPUDIR) \
 678         $(shell $(LD) --version | \
 679           sed -ne 's/GNU ld version \([0-9][0-9]*\)\.\([0-9][0-9]*\).*/-DLD_MAJOR=\1 -DLD_MINOR=\2/p')
 680
 681 #########################################################################
 682 #########################################################################
 683
 684 ifneq ($(CONFIG_BOARD_SIZE_LIMIT),)
 685 BOARD_SIZE_CHECK = \
 686         @actual=`wc -c $@ | awk '{print $$1}'`; \
 687         limit=`printf "%d" $(CONFIG_BOARD_SIZE_LIMIT)`; \
 688         if test $$actual -gt $$limit; then \
 689                 echo "$@ exceeds file size limit:" >&2 ; \
 690                 echo "  limit:  $$limit bytes" >&2 ; \
 691                 echo "  actual: $$actual bytes" >&2 ; \
 692                 echo "  excess: $$((actual - limit)) bytes" >&2; \
 693                 exit 1; \
 694         fi
 695 else
 696 BOARD_SIZE_CHECK =
 697 endif
 698
 699 # Statically apply RELA-style relocations (currently arm64 only)
 700 ifneq ($(CONFIG_STATIC_RELA),)
 701 # $(1) is u-boot ELF, $(2) is u-boot bin, $(3) is text base
 702 DO_STATIC_RELA = \
 703         start=$$($(NM) $(1) | grep __rel_dyn_start | cut -f 1 -d ' '); \
 704         end=$$($(NM) $(1) | grep __rel_dyn_end | cut -f 1 -d ' '); \
 705         tools/relocate-rela $(2) $(3) $$start $$end
 706 else
 707 DO_STATIC_RELA =
 708 endif
 709
 710 # Always append ALL so that arch config.mk's can add custom ones
 711 ALL-y += u-boot.srec u-boot.bin System.map binary_size_check
 712
 713 ALL-$(CONFIG_ONENAND_U_BOOT) += u-boot-onenand.bin
 714 ifeq ($(CONFIG_SPL_FSL_PBL),y)
 715 ALL-$(CONFIG_RAMBOOT_PBL) += u-boot-with-spl-pbl.bin
 716 else
 717 ALL-$(CONFIG_RAMBOOT_PBL) += u-boot.pbl
 718 endif
 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 u-boot-dtb.bin
 723 ifeq ($(CONFIG_SPL_FRAMEWORK),y)
 724 ALL-$(CONFIG_OF_SEPARATE) += u-boot-dtb.img
 725 endif
 726 ALL-$(CONFIG_OF_HOSTFILE) += u-boot.dtb
 727 ifneq ($(CONFIG_SPL_TARGET),)
 728 ALL-$(CONFIG_SPL) += $(CONFIG_SPL_TARGET:"%"=%)
 729 endif
 730 ALL-$(CONFIG_REMAKE_ELF) += u-boot.elf
 731
 732 # We can't do this yet due to the need for binary blobs
 733 # ALL-$(CONFIG_X86_RESET_VECTOR) += u-boot.rom
 734
 735 # enable combined SPL/u-boot/dtb rules for tegra
 736 ifneq ($(CONFIG_TEGRA),)
 737 ifeq ($(CONFIG_SPL),y)
 738 ifeq ($(CONFIG_OF_SEPARATE),y)
 739 ALL-y += u-boot-dtb-tegra.bin
 740 else
 741 ALL-y += u-boot-nodtb-tegra.bin
 742 endif
 743 endif
 744 endif
 745
 746 # Add optional build target if defined in board/cpu/soc headers
 747 ifneq ($(CONFIG_BUILD_TARGET),)
 748 ALL-y += $(CONFIG_BUILD_TARGET:"%"=%)
 749 endif
 750
 751 LDFLAGS_u-boot += $(LDFLAGS_FINAL)
 752 ifneq ($(CONFIG_SYS_TEXT_BASE),)
 753 LDFLAGS_u-boot += -Ttext $(CONFIG_SYS_TEXT_BASE)
 754 endif
 755
 756 quiet_cmd_objcopy = OBJCOPY $@
 757 cmd_objcopy = $(OBJCOPY) $(OBJCOPYFLAGS) $(OBJCOPYFLAGS_$(@F)) $< $@
 758
 759 quiet_cmd_mkimage = MKIMAGE $@
 760 cmd_mkimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -d $< $@ \
 761         $(if $(KBUILD_VERBOSE:1=), >/dev/null)
 762
 763 quiet_cmd_cat = CAT     $@
 764 cmd_cat = cat $(filter-out $(PHONY), $^) > $@
 765
 766 append = cat $(filter-out $< $(PHONY), $^) >> $@
 767
 768 quiet_cmd_pad_cat = CAT     $@
 769 cmd_pad_cat = $(cmd_objcopy) && $(append) || rm -f $@
 770
 771 all:            $(ALL-y)
 772 ifneq ($(CONFIG_SYS_GENERIC_BOARD),y)
 773         @echo "===================== WARNING ======================"
 774         @echo "Please convert this board to generic board."
 775         @echo "Otherwise it will be removed by the end of 2014."
 776         @echo "See doc/README.generic-board for further information"
 777         @echo "===================================================="
 778 endif
 779
 780 PHONY += dtbs
 781 dtbs dts/dt.dtb: checkdtc u-boot
 782         $(Q)$(MAKE) $(build)=dts dtbs
 783
 784 u-boot-dtb.bin: u-boot.bin dts/dt.dtb FORCE
 785         $(call if_changed,cat)
 786
 787 %.imx: %.bin
 788         $(Q)$(MAKE) $(build)=arch/arm/imx-common $@
 789
 790 quiet_cmd_copy = COPY    $@
 791       cmd_copy = cp $< $@
 792
 793 u-boot.dtb: dts/dt.dtb
 794         $(call cmd,copy)
 795
 796 OBJCOPYFLAGS_u-boot.hex := -O ihex
 797
 798 OBJCOPYFLAGS_u-boot.srec := -O srec
 799
 800 u-boot.hex u-boot.srec: u-boot FORCE
 801         $(call if_changed,objcopy)
 802
 803 OBJCOPYFLAGS_u-boot.bin := -O binary \
 804                 $(if $(CONFIG_X86_RESET_VECTOR),-R .start16 -R .resetvec)
 805
 806 binary_size_check: u-boot.bin FORCE
 807         @file_size=$(shell wc -c u-boot.bin | awk '{print $$1}') ; \
 808         map_size=$(shell cat u-boot.map | \
 809                 awk '/_image_copy_start/ {start = $$1} /_image_binary_end/ {end = $$1} END {if (start != "" && end != "") print "ibase=16; " toupper(end) " - " toupper(start)}' \
 810                 | sed 's/0X//g' \
 811                 | bc); \
 812         if [ "" != "$$map_size" ]; then \
 813                 if test $$map_size -ne $$file_size; then \
 814                         echo "u-boot.map shows a binary size of $$map_size" >&2 ; \
 815                         echo "  but u-boot.bin shows $$file_size" >&2 ; \
 816                         exit 1; \
 817                 fi \
 818         fi
 819
 820 u-boot.bin: u-boot FORCE
 821         $(call if_changed,objcopy)
 822         $(call DO_STATIC_RELA,$<,$@,$(CONFIG_SYS_TEXT_BASE))
 823         $(BOARD_SIZE_CHECK)
 824
 825 u-boot.ldr:     u-boot
 826                 $(CREATE_LDR_ENV)
 827                 $(LDR) -T $(CONFIG_CPU) -c $@ $< $(LDR_FLAGS)
 828                 $(BOARD_SIZE_CHECK)
 829
 830 OBJCOPYFLAGS_u-boot.ldr.hex := -I binary -O ihex
 831
 832 OBJCOPYFLAGS_u-boot.ldr.srec := -I binary -O srec
 833
 834 u-boot.ldr.hex u-boot.ldr.srec: u-boot.ldr FORCE
 835         $(call if_changed,objcopy)
 836
 837 #
 838 # U-Boot entry point, needed for booting of full-blown U-Boot
 839 # from the SPL U-Boot version.
 840 #
 841 ifndef CONFIG_SYS_UBOOT_START
 842 CONFIG_SYS_UBOOT_START := 0
 843 endif
 844
 845 MKIMAGEFLAGS_u-boot.img = -A $(ARCH) -T firmware -C none -O u-boot \
 846         -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \
 847         -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board"
 848
 849 MKIMAGEFLAGS_u-boot.kwb = -n $(srctree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%) \
 850         -T kwbimage -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE)
 851
 852 MKIMAGEFLAGS_u-boot.pbl = -n $(srctree)/$(CONFIG_SYS_FSL_PBL_RCW:"%"=%) \
 853                 -R $(srctree)/$(CONFIG_SYS_FSL_PBL_PBI:"%"=%) -T pblimage
 854
 855 u-boot.img u-boot.kwb u-boot.pbl: u-boot.bin FORCE
 856         $(call if_changed,mkimage)
 857
 858 MKIMAGEFLAGS_u-boot-dtb.img = $(MKIMAGEFLAGS_u-boot.img)
 859
 860 u-boot-dtb.img: u-boot-dtb.bin FORCE
 861         $(call if_changed,mkimage)
 862
 863 u-boot.sha1:    u-boot.bin
 864                 tools/ubsha1 u-boot.bin
 865
 866 u-boot.dis:     u-boot
 867                 $(OBJDUMP) -d $< > $@
 868
 869 ifdef CONFIG_TPL
 870 SPL_PAYLOAD := tpl/u-boot-with-tpl.bin
 871 else
 872 SPL_PAYLOAD := u-boot.bin
 873 endif
 874
 875 OBJCOPYFLAGS_u-boot-with-spl.bin = -I binary -O binary \
 876                                    --pad-to=$(CONFIG_SPL_PAD_TO)
 877 u-boot-with-spl.bin: spl/u-boot-spl.bin $(SPL_PAYLOAD) FORCE
 878         $(call if_changed,pad_cat)
 879
 880 OBJCOPYFLAGS_u-boot-with-tpl.bin = -I binary -O binary \
 881                                    --pad-to=$(CONFIG_TPL_PAD_TO)
 882 tpl/u-boot-with-tpl.bin: tpl/u-boot-tpl.bin u-boot.bin FORCE
 883         $(call if_changed,pad_cat)
 884
 885 SPL: spl/u-boot-spl.bin FORCE
 886         $(Q)$(MAKE) $(build)=arch/arm/imx-common $@
 887
 888 u-boot-with-spl.imx u-boot-with-nand-spl.imx: SPL u-boot.bin FORCE
 889         $(Q)$(MAKE) $(build)=arch/arm/imx-common $@
 890
 891 MKIMAGEFLAGS_u-boot.ubl = -n $(UBL_CONFIG) -T ublimage -e $(CONFIG_SYS_TEXT_BASE)
 892
 893 u-boot.ubl: u-boot-with-spl.bin FORCE
 894         $(call if_changed,mkimage)
 895
 896 MKIMAGEFLAGS_u-boot-spl.ais = -s -n $(if $(CONFIG_AIS_CONFIG_FILE), \
 897         $(srctree)/$(CONFIG_AIS_CONFIG_FILE:"%"=%),"/dev/null") \
 898         -T aisimage -e $(CONFIG_SPL_TEXT_BASE)
 899 spl/u-boot-spl.ais: spl/u-boot-spl.bin FORCE
 900         $(call if_changed,mkimage)
 901
 902 OBJCOPYFLAGS_u-boot.ais = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO)
 903 u-boot.ais: spl/u-boot-spl.ais u-boot.img FORCE
 904         $(call if_changed,pad_cat)
 905
 906 u-boot-signed.sb: u-boot.bin spl/u-boot-spl.bin
 907         $(Q)$(MAKE) $(build)=arch/arm/cpu/arm926ejs/mxs u-boot-signed.sb
 908 u-boot.sb: u-boot.bin spl/u-boot-spl.bin
 909         $(Q)$(MAKE) $(build)=arch/arm/cpu/arm926ejs/mxs u-boot.sb
 910
 911 # On x600 (SPEAr600) U-Boot is appended to U-Boot SPL.
 912 # Both images are created using mkimage (crc etc), so that the ROM
 913 # bootloader can check its integrity. Padding needs to be done to the
 914 # SPL image (with mkimage header) and not the binary. Otherwise the resulting image
 915 # which is loaded/copied by the ROM bootloader to SRAM doesn't fit.
 916 # The resulting image containing both U-Boot images is called u-boot.spr
 917 MKIMAGEFLAGS_u-boot-spl.img = -A $(ARCH) -T firmware -C none \
 918         -a $(CONFIG_SPL_TEXT_BASE) -e $(CONFIG_SPL_TEXT_BASE) -n XLOADER
 919 spl/u-boot-spl.img: spl/u-boot-spl.bin FORCE
 920         $(call if_changed,mkimage)
 921
 922 OBJCOPYFLAGS_u-boot.spr = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) \
 923                           --gap-fill=0xff
 924 u-boot.spr: spl/u-boot-spl.img u-boot.img FORCE
 925         $(call if_changed,pad_cat)
 926
 927 MKIMAGEFLAGS_u-boot-spl.gph = -A $(ARCH) -T gpimage -C none \
 928         -a $(CONFIG_SPL_TEXT_BASE) -e $(CONFIG_SPL_TEXT_BASE) -n SPL
 929 spl/u-boot-spl.gph: spl/u-boot-spl.bin FORCE
 930         $(call if_changed,mkimage)
 931
 932 OBJCOPYFLAGS_u-boot-spi.gph = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) \
 933                           --gap-fill=0
 934 u-boot-spi.gph: spl/u-boot-spl.gph u-boot.img FORCE
 935         $(call if_changed,pad_cat)
 936
 937 MKIMAGEFLAGS_u-boot-nand.gph = -A $(ARCH) -T gpimage -C none \
 938         -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE) -n U-Boot
 939 u-boot-nand.gph: u-boot.bin FORCE
 940         $(call if_changed,mkimage)
 941         @dd if=/dev/zero bs=8 count=1 2>/dev/null >> $@
 942
 943 # x86 uses a large ROM. We fill it with 0xff, put the 16-bit stuff (including
 944 # reset vector) at the top, Intel ME descriptor at the bottom, and U-Boot in
 945 # the middle.
 946 ifneq ($(CONFIG_X86_RESET_VECTOR),)
 947 rom: u-boot.rom FORCE
 948
 949 IFDTOOL=$(objtree)/tools/ifdtool
 950 IFDTOOL_FLAGS  = -w $(CONFIG_SYS_TEXT_BASE):$(objtree)/u-boot-dtb.bin
 951 IFDTOOL_FLAGS += -w $(CONFIG_SYS_X86_START16):$(objtree)/u-boot-x86-16bit.bin
 952
 953 ifneq ($(CONFIG_HAVE_INTEL_ME),)
 954 IFDTOOL_ME_FLAGS  = -D $(srctree)/board/$(BOARDDIR)/descriptor.bin
 955 IFDTOOL_ME_FLAGS += -i ME:$(srctree)/board/$(BOARDDIR)/me.bin
 956 endif
 957
 958 ifneq ($(CONFIG_HAVE_MRC),)
 959 IFDTOOL_FLAGS += -w $(CONFIG_X86_MRC_START):$(srctree)/board/$(BOARDDIR)/mrc.bin
 960 endif
 961
 962 ifneq ($(CONFIG_X86_OPTION_ROM_ADDR),)
 963 IFDTOOL_FLAGS += -w $(CONFIG_X86_OPTION_ROM_ADDR):$(srctree)/board/$(BOARDDIR)/$(CONFIG_X86_OPTION_ROM_FILENAME)
 964 endif
 965
 966 quiet_cmd_ifdtool = IFDTOOL $@
 967 cmd_ifdtool  = $(IFDTOOL) -c -r $(CONFIG_ROM_SIZE) u-boot.tmp;
 968 ifneq ($(CONFIG_HAVE_INTEL_ME),)
 969 cmd_ifdtool += $(IFDTOOL) $(IFDTOOL_ME_FLAGS) u-boot.tmp;
 970 endif
 971 cmd_ifdtool += $(IFDTOOL) $(IFDTOOL_FLAGS) u-boot.tmp;
 972 cmd_ifdtool += mv u-boot.tmp $@
 973
 974 u-boot.rom: u-boot-x86-16bit.bin u-boot-dtb.bin
 975         $(call if_changed,ifdtool)
 976
 977 OBJCOPYFLAGS_u-boot-x86-16bit.bin := -O binary -j .start16 -j .resetvec
 978 u-boot-x86-16bit.bin: u-boot FORCE
 979         $(call if_changed,objcopy)
 980 endif
 981
 982 ifneq ($(CONFIG_SUNXI),)
 983 OBJCOPYFLAGS_u-boot-sunxi-with-spl.bin = -I binary -O binary \
 984                                    --pad-to=$(CONFIG_SPL_PAD_TO) --gap-fill=0xff
 985 u-boot-sunxi-with-spl.bin: spl/sunxi-spl.bin \
 986                         u-boot$(if $(CONFIG_OF_CONTROL),-dtb,).img FORCE
 987         $(call if_changed,pad_cat)
 988 endif
 989
 990 ifneq ($(CONFIG_TEGRA),)
 991 OBJCOPYFLAGS_u-boot-nodtb-tegra.bin = -O binary --pad-to=$(CONFIG_SYS_TEXT_BASE)
 992 u-boot-nodtb-tegra.bin: spl/u-boot-spl u-boot.bin FORCE
 993         $(call if_changed,pad_cat)
 994
 995 ifeq ($(CONFIG_OF_SEPARATE),y)
 996 u-boot-dtb-tegra.bin: u-boot-nodtb-tegra.bin dts/dt.dtb FORCE
 997         $(call if_changed,cat)
 998 endif
 999 endif
1000
1001 u-boot-img.bin: spl/u-boot-spl.bin u-boot.img FORCE
1002         $(call if_changed,cat)
1003
1004 #Add a target to create boot binary having SPL binary in PBI format
1005 #concatenated with u-boot binary. It is need by PowerPC SoC having
1006 #internal SRAM <= 512KB.
1007 MKIMAGEFLAGS_u-boot-spl.pbl = -n $(srctree)/$(CONFIG_SYS_FSL_PBL_RCW:"%"=%) \
1008                 -R $(srctree)/$(CONFIG_SYS_FSL_PBL_PBI:"%"=%) -T pblimage \
1009                 -A $(ARCH) -a $(CONFIG_SPL_TEXT_BASE)
1010
1011 spl/u-boot-spl.pbl: spl/u-boot-spl.bin FORCE
1012         $(call if_changed,mkimage)
1013
1014 ifeq ($(ARCH),arm)
1015 UBOOT_BINLOAD := u-boot.img
1016 else
1017 UBOOT_BINLOAD := u-boot.bin
1018 endif
1019
1020 OBJCOPYFLAGS_u-boot-with-spl-pbl.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) \
1021                           --gap-fill=0xff
1022
1023 u-boot-with-spl-pbl.bin: spl/u-boot-spl.pbl $(UBOOT_BINLOAD) FORCE
1024         $(call if_changed,pad_cat)
1025
1026 # PPC4xx needs the SPL at the end of the image, since the reset vector
1027 # is located at 0xfffffffc. So we can't use the "u-boot-img.bin" target
1028 # and need to introduce a new build target with the full blown U-Boot
1029 # at the start padded up to the start of the SPL image. And then concat
1030 # the SPL image to the end.
1031
1032 OBJCOPYFLAGS_u-boot-img-spl-at-end.bin := -I binary -O binary \
1033         --pad-to=$(CONFIG_UBOOT_PAD_TO) --gap-fill=0xff
1034 u-boot-img-spl-at-end.bin: u-boot.img spl/u-boot-spl.bin FORCE
1035         $(call if_changed,pad_cat)
1036
1037 # Create a new ELF from a raw binary file.  This is useful for arm64
1038 # where static relocation needs to be performed on the raw binary,
1039 # but certain simulators only accept an ELF file (but don't do the
1040 # relocation).
1041 # FIXME refactor dts/Makefile to share target/arch detection
1042 u-boot.elf: u-boot.bin
1043         @$(OBJCOPY)  -B aarch64 -I binary -O elf64-littleaarch64 \
1044                 $< u-boot-elf.o
1045         @$(LD) u-boot-elf.o -o $@ \
1046                 --defsym=_start=$(CONFIG_SYS_TEXT_BASE) \
1047                 -Ttext=$(CONFIG_SYS_TEXT_BASE)
1048
1049 # Rule to link u-boot
1050 # May be overridden by arch/$(ARCH)/config.mk
1051 quiet_cmd_u-boot__ ?= LD      $@
1052       cmd_u-boot__ ?= $(LD) $(LDFLAGS) $(LDFLAGS_u-boot) -o $@ \
1053       -T u-boot.lds $(u-boot-init)                             \
1054       --start-group $(u-boot-main) --end-group                 \
1055       $(PLATFORM_LIBS) -Map u-boot.map
1056
1057 quiet_cmd_smap = GEN     common/system_map.o
1058 cmd_smap = \
1059         smap=`$(call SYSTEM_MAP,u-boot) | \
1060                 awk '$$2 ~ /[tTwW]/ {printf $$1 $$3 "\\\\000"}'` ; \
1061         $(CC) $(c_flags) -DSYSTEM_MAP="\"$${smap}\"" \
1062                 -c $(srctree)/common/system_map.c -o common/system_map.o
1063
1064 u-boot: $(u-boot-init) $(u-boot-main) u-boot.lds
1065         $(call if_changed,u-boot__)
1066 ifeq ($(CONFIG_KALLSYMS),y)
1067         $(call cmd,smap)
1068         $(call cmd,u-boot__) common/system_map.o
1069 endif
1070
1071 # The actual objects are generated when descending,
1072 # make sure no implicit rule kicks in
1073 $(sort $(u-boot-init) $(u-boot-main)): $(u-boot-dirs) ;
1074
1075 # Handle descending into subdirectories listed in $(vmlinux-dirs)
1076 # Preset locale variables to speed up the build process. Limit locale
1077 # tweaks to this spot to avoid wrong language settings when running
1078 # make menuconfig etc.
1079 # Error messages still appears in the original language
1080
1081 PHONY += $(u-boot-dirs)
1082 $(u-boot-dirs): prepare scripts
1083         $(Q)$(MAKE) $(build)=$@
1084
1085 tools: prepare
1086 # The "tools" are needed early
1087 $(filter-out tools, $(u-boot-dirs)): tools
1088 # The "examples" conditionally depend on U-Boot (say, when USE_PRIVATE_LIBGCC
1089 # is "yes"), so compile examples after U-Boot is compiled.
1090 examples: $(filter-out examples, $(u-boot-dirs))
1091
1092 define filechk_uboot.release
1093         echo "$(UBOOTVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))"
1094 endef
1095
1096 # Store (new) UBOOTRELEASE string in include/config/uboot.release
1097 include/config/uboot.release: include/config/auto.conf FORCE
1098         $(call filechk,uboot.release)
1099
1100
1101 # Things we need to do before we recursively start building the kernel
1102 # or the modules are listed in "prepare".
1103 # A multi level approach is used. prepareN is processed before prepareN-1.
1104 # archprepare is used in arch Makefiles and when processed asm symlink,
1105 # version.h and scripts_basic is processed / created.
1106
1107 # Listed in dependency order
1108 PHONY += prepare archprepare prepare0 prepare1 prepare2 prepare3
1109
1110 # prepare3 is used to check if we are building in a separate output directory,
1111 # and if so do:
1112 # 1) Check that make has not been executed in the kernel src $(srctree)
1113 prepare3: include/config/uboot.release
1114 ifneq ($(KBUILD_SRC),)
1115         @$(kecho) '  Using $(srctree) as source for U-Boot'
1116         $(Q)if [ -f $(srctree)/.config -o -d $(srctree)/include/config ]; then \
1117                 echo >&2 "  $(srctree) is not clean, please run 'make mrproper'"; \
1118                 echo >&2 "  in the '$(srctree)' directory.";\
1119                 /bin/false; \
1120         fi;
1121 endif
1122
1123 # prepare2 creates a makefile if using a separate output directory
1124 prepare2: prepare3 outputmakefile
1125
1126 prepare1: prepare2 $(version_h) $(timestamp_h) \
1127                    include/config/auto.conf
1128 ifeq ($(__HAVE_ARCH_GENERIC_BOARD),)
1129 ifeq ($(CONFIG_SYS_GENERIC_BOARD),y)
1130         @echo >&2 "  Your architecture does not support generic board."
1131         @echo >&2 "  Please undefine CONFIG_SYS_GENERIC_BOARD in your board config file."
1132         @/bin/false
1133 endif
1134 endif
1135 ifeq ($(wildcard $(LDSCRIPT)),)
1136         @echo >&2 "  Could not find linker script."
1137         @/bin/false
1138 endif
1139
1140 archprepare: prepare1 scripts_basic
1141
1142 prepare0: archprepare FORCE
1143         $(Q)$(MAKE) $(build)=.
1144
1145 # All the preparing..
1146 prepare: prepare0
1147
1148 # Generate some files
1149 # ---------------------------------------------------------------------------
1150
1151 define filechk_version.h
1152         (echo \#define PLAIN_VERSION \"$(UBOOTRELEASE)\"; \
1153         echo \#define U_BOOT_VERSION \"U-Boot \" PLAIN_VERSION; \
1154         echo \#define CC_VERSION_STRING \"$$($(CC) --version | head -n 1)\"; \
1155         echo \#define LD_VERSION_STRING \"$$($(LD) --version | head -n 1)\"; )
1156 endef
1157
1158 define filechk_timestamp.h
1159         (LC_ALL=C date +'#define U_BOOT_DATE "%b %d %C%y"'; \
1160         LC_ALL=C date +'#define U_BOOT_TIME "%T"')
1161 endef
1162
1163 $(version_h): include/config/uboot.release FORCE
1164         $(call filechk,version.h)
1165
1166 $(timestamp_h): $(srctree)/Makefile FORCE
1167         $(call filechk,timestamp.h)
1168
1169 # ---------------------------------------------------------------------------
1170
1171 PHONY += depend dep
1172 depend dep:
1173         @echo '*** Warning: make $@ is unnecessary now.'
1174
1175 # ---------------------------------------------------------------------------
1176 quiet_cmd_cpp_lds = LDS     $@
1177 cmd_cpp_lds = $(CPP) -Wp,-MD,$(depfile) $(cpp_flags) $(LDPPFLAGS) -ansi \
1178                 -D__ASSEMBLY__ -x assembler-with-cpp -P -o $@ $<
1179
1180 u-boot.lds: $(LDSCRIPT) prepare FORCE
1181         $(call if_changed_dep,cpp_lds)
1182
1183 spl/u-boot-spl.bin: spl/u-boot-spl
1184         @:
1185 spl/u-boot-spl: tools prepare
1186         $(Q)$(MAKE) obj=spl -f $(srctree)/scripts/Makefile.spl all
1187
1188 spl/sunxi-spl.bin: spl/u-boot-spl
1189         @:
1190
1191 tpl/u-boot-tpl.bin: tools prepare
1192         $(Q)$(MAKE) obj=tpl -f $(srctree)/scripts/Makefile.spl all
1193
1194 TAG_SUBDIRS := $(patsubst %,$(srctree)/%,$(u-boot-dirs) include)
1195
1196 FIND := find
1197 FINDFLAGS := -L
1198
1199 tags ctags:
1200                 ctags -w -o ctags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \
1201                                                 -name '*.[chS]' -print`
1202
1203 etags:
1204                 etags -a -o etags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \
1205                                                 -name '*.[chS]' -print`
1206 cscope:
1207                 $(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) -name '*.[chS]' -print > \
1208                                                 cscope.files
1209                 cscope -b -q -k
1210
1211 SYSTEM_MAP = \
1212                 $(NM) $1 | \
1213                 grep -v '\(compiled\)\|\(\.o$$\)\|\( [aUw] \)\|\(\.\.ng$$\)\|\(LASH[RL]DI\)' | \
1214                 LC_ALL=C sort
1215 System.map:     u-boot
1216                 @$(call SYSTEM_MAP,$<) > $@
1217
1218 checkdtc:
1219         @if test $(call dtc-version) -lt 0104; then \
1220                 echo '*** Your dtc is too old, please upgrade to dtc 1.4 or newer'; \
1221                 false; \
1222         fi
1223
1224 #########################################################################
1225
1226 # ARM relocations should all be R_ARM_RELATIVE (32-bit) or
1227 # R_AARCH64_RELATIVE (64-bit).
1228 checkarmreloc: u-boot
1229         @RELOC="`$(CROSS_COMPILE)readelf -r -W $< | cut -d ' ' -f 4 | \
1230                 grep R_A | sort -u`"; \
1231         if test "$$RELOC" != "R_ARM_RELATIVE" -a \
1232                  "$$RELOC" != "R_AARCH64_RELATIVE"; then \
1233                 echo "$< contains unexpected relocations: $$RELOC"; \
1234                 false; \
1235         fi
1236
1237 env: scripts_basic
1238         $(Q)$(MAKE) $(build)=tools/$@
1239
1240 tools-only: scripts_basic $(version_h) $(timestamp_h)
1241         $(Q)$(MAKE) $(build)=tools
1242
1243 tools-all: export HOST_TOOLS_ALL=y
1244 tools-all: env tools ;
1245
1246 cross_tools: export CROSS_BUILD_TOOLS=y
1247 cross_tools: tools ;
1248
1249 .PHONY : CHANGELOG
1250 CHANGELOG:
1251         git log --no-merges U-Boot-1_1_5.. | \
1252         unexpand -a | sed -e 's/\s\s*$$//' > $@
1253
1254 include/license.h: tools/bin2header COPYING
1255         cat COPYING | gzip -9 -c | ./tools/bin2header license_gzip > include/license.h
1256 #########################################################################
1257
1258 ###
1259 # Cleaning is done on three levels.
1260 # make clean     Delete most generated files
1261 #                Leave enough to build external modules
1262 # make mrproper  Delete the current configuration, and all generated files
1263 # make distclean Remove editor backup files, patch leftover files and the like
1264
1265 # Directories & files removed with 'make clean'
1266 CLEAN_DIRS  += $(MODVERDIR) \
1267                $(foreach d, spl tpl, $(patsubst %,$d/%, \
1268                         $(filter-out include, $(shell ls -1 $d 2>/dev/null))))
1269
1270 CLEAN_FILES += include/bmp_logo.h include/bmp_logo_data.h \
1271                u-boot* MLO* SPL System.map
1272
1273 # Directories & files removed with 'make mrproper'
1274 MRPROPER_DIRS  += include/config include/generated spl tpl \
1275                   .tmp_objdiff
1276 MRPROPER_FILES += .config .config.old include/autoconf.mk* include/config.h \
1277                   ctags etags TAGS cscope* GPATH GTAGS GRTAGS GSYMS
1278
1279 # clean - Delete most, but leave enough to build external modules
1280 #
1281 clean: rm-dirs  := $(CLEAN_DIRS)
1282 clean: rm-files := $(CLEAN_FILES)
1283
1284 clean-dirs      := $(foreach f,$(u-boot-alldirs),$(if $(wildcard $(srctree)/$f/Makefile),$f))
1285
1286 clean-dirs      := $(addprefix _clean_, $(clean-dirs) doc/DocBook)
1287
1288 PHONY += $(clean-dirs) clean archclean
1289 $(clean-dirs):
1290         $(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$@)
1291
1292 # TODO: Do not use *.cfgtmp
1293 clean: $(clean-dirs)
1294         $(call cmd,rmdirs)
1295         $(call cmd,rmfiles)
1296         @find $(if $(KBUILD_EXTMOD), $(KBUILD_EXTMOD), .) $(RCS_FIND_IGNORE) \
1297                 \( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \
1298                 -o -name '*.ko.*' -o -name '*.su' -o -name '*.cfgtmp' \
1299                 -o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \
1300                 -o -name '*.symtypes' -o -name 'modules.order' \
1301                 -o -name modules.builtin -o -name '.tmp_*.o.*' \
1302                 -o -name '*.gcno' \) -type f -print | xargs rm -f
1303
1304 # mrproper - Delete all generated files, including .config
1305 #
1306 mrproper: rm-dirs  := $(wildcard $(MRPROPER_DIRS))
1307 mrproper: rm-files := $(wildcard $(MRPROPER_FILES))
1308 mrproper-dirs      := $(addprefix _mrproper_,scripts)
1309
1310 PHONY += $(mrproper-dirs) mrproper archmrproper
1311 $(mrproper-dirs):
1312         $(Q)$(MAKE) $(clean)=$(patsubst _mrproper_%,%,$@)
1313
1314 mrproper: clean $(mrproper-dirs)
1315         $(call cmd,rmdirs)
1316         $(call cmd,rmfiles)
1317         @rm -f arch/*/include/asm/arch
1318
1319 # distclean
1320 #
1321 PHONY += distclean
1322
1323 distclean: mrproper
1324         @find $(srctree) $(RCS_FIND_IGNORE) \
1325                 \( -name '*.orig' -o -name '*.rej' -o -name '*~' \
1326                 -o -name '*.bak' -o -name '#*#' -o -name '.*.orig' \
1327                 -o -name '.*.rej' -o -name '*%' -o -name 'core' \
1328                 -o -name '*.pyc' \) \
1329                 -type f -print | xargs rm -f
1330         @rm -f boards.cfg
1331
1332 backup:
1333         F=`basename $(srctree)` ; cd .. ; \
1334         gtar --force-local -zcvf `LC_ALL=C date "+$$F-%Y-%m-%d-%T.tar.gz"` $$F
1335
1336 help:
1337         @echo  'Cleaning targets:'
1338         @echo  '  clean           - Remove most generated files but keep the config'
1339         @echo  '  mrproper        - Remove all generated files + config + various backup files'
1340         @echo  '  distclean       - mrproper + remove editor backup and patch files'
1341         @echo  ''
1342         @echo  'Configuration targets:'
1343         @$(MAKE) -f $(srctree)/scripts/kconfig/Makefile help
1344         @echo  ''
1345         @echo  'Other generic targets:'
1346         @echo  '  all             - Build all necessary images depending on configuration'
1347         @echo  '* u-boot          - Build the bare u-boot'
1348         @echo  '  dir/            - Build all files in dir and below'
1349         @echo  '  dir/file.[oisS] - Build specified target only'
1350         @echo  '  dir/file.lst    - Build specified mixed source/assembly target only'
1351         @echo  '                    (requires a recent binutils and recent build (System.map))'
1352         @echo  '  tags/ctags      - Generate ctags file for editors'
1353         @echo  '  etags           - Generate etags file for editors'
1354         @echo  '  cscope          - Generate cscope index'
1355         @echo  '  ubootrelease    - Output the release version string (use with make -s)'
1356         @echo  '  ubootversion    - Output the version stored in Makefile (use with make -s)'
1357         @echo  ''
1358         @echo  'Static analysers'
1359         @echo  '  checkstack      - Generate a list of stack hogs'
1360         @echo  ''
1361         @echo  'Documentation targets:'
1362         @$(MAKE) -f $(srctree)/doc/DocBook/Makefile dochelp
1363         @echo  ''
1364         @echo  '  make V=0|1 [targets] 0 => quiet build (default), 1 => verbose build'
1365         @echo  '  make V=2   [targets] 2 => give reason for rebuild of target'
1366         @echo  '  make O=dir [targets] Locate all output files in "dir", including .config'
1367         @echo  '  make C=1   [targets] Check all c source with $$CHECK (sparse by default)'
1368         @echo  '  make C=2   [targets] Force check of all c source with $$CHECK'
1369         @echo  '  make RECORDMCOUNT_WARN=1 [targets] Warn about ignored mcount sections'
1370         @echo  '  make W=n   [targets] Enable extra gcc checks, n=1,2,3 where'
1371         @echo  '                1: warnings which may be relevant and do not occur too often'
1372         @echo  '                2: warnings which occur quite often but may still be relevant'
1373         @echo  '                3: more obscure warnings, can most likely be ignored'
1374         @echo  '                Multiple levels can be combined with W=12 or W=123'
1375         @echo  ''
1376         @echo  'Execute "make" or "make all" to build all targets marked with [*] '
1377         @echo  'For further info see the ./README file'
1378
1379
1380 # Documentation targets
1381 # ---------------------------------------------------------------------------
1382 %docs: scripts_basic FORCE
1383         $(Q)$(MAKE) $(build)=scripts build_docproc
1384         $(Q)$(MAKE) $(build)=doc/DocBook $@
1385
1386 # Dummies...
1387 PHONY += prepare scripts
1388 prepare: ;
1389 scripts: ;
1390
1391 endif #ifeq ($(config-targets),1)
1392 endif #ifeq ($(mixed-targets),1)
1393
1394 PHONY += checkstack ubootrelease ubootversion
1395
1396 checkstack:
1397         $(OBJDUMP) -d u-boot $$(find . -name u-boot-spl) | \
1398         $(PERL) $(src)/scripts/checkstack.pl $(ARCH)
1399
1400 ubootrelease:
1401         @echo "$(UBOOTVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))"
1402
1403 ubootversion:
1404         @echo $(UBOOTVERSION)
1405
1406 # Single targets
1407 # ---------------------------------------------------------------------------
1408 # Single targets are compatible with:
1409 # - build with mixed source and output
1410 # - build with separate output dir 'make O=...'
1411 # - external modules
1412 #
1413 #  target-dir => where to store outputfile
1414 #  build-dir  => directory in kernel source tree to use
1415
1416 ifeq ($(KBUILD_EXTMOD),)
1417         build-dir  = $(patsubst %/,%,$(dir $@))
1418         target-dir = $(dir $@)
1419 else
1420         zap-slash=$(filter-out .,$(patsubst %/,%,$(dir $@)))
1421         build-dir  = $(KBUILD_EXTMOD)$(if $(zap-slash),/$(zap-slash))
1422         target-dir = $(if $(KBUILD_EXTMOD),$(dir $<),$(dir $@))
1423 endif
1424
1425 %.s: %.c prepare scripts FORCE
1426         $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1427 %.i: %.c prepare scripts FORCE
1428         $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1429 %.o: %.c prepare scripts FORCE
1430         $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1431 %.lst: %.c prepare scripts FORCE
1432         $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1433 %.s: %.S prepare scripts FORCE
1434         $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1435 %.o: %.S prepare scripts FORCE
1436         $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1437 %.symtypes: %.c prepare scripts FORCE
1438         $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1439
1440 # Modules
1441 /: prepare scripts FORCE
1442         $(cmd_crmodverdir)
1443         $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \
1444         $(build)=$(build-dir)
1445 %/: prepare scripts FORCE
1446         $(cmd_crmodverdir)
1447         $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \
1448         $(build)=$(build-dir)
1449 %.ko: prepare scripts FORCE
1450         $(cmd_crmodverdir)
1451         $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1)   \
1452         $(build)=$(build-dir) $(@:.ko=.o)
1453         $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost
1454
1455 # FIXME Should go into a make.lib or something
1456 # ===========================================================================
1457
1458 quiet_cmd_rmdirs = $(if $(wildcard $(rm-dirs)),CLEAN   $(wildcard $(rm-dirs)))
1459       cmd_rmdirs = rm -rf $(rm-dirs)
1460
1461 quiet_cmd_rmfiles = $(if $(wildcard $(rm-files)),CLEAN   $(wildcard $(rm-files)))
1462       cmd_rmfiles = rm -f $(rm-files)
1463
1464 # read all saved command lines
1465
1466 targets := $(wildcard $(sort $(targets)))
1467 cmd_files := $(wildcard .*.cmd $(foreach f,$(targets),$(dir $(f)).$(notdir $(f)).cmd))
1468
1469 ifneq ($(cmd_files),)
1470   $(cmd_files): ;       # Do not try to update included dependency files
1471   include $(cmd_files)
1472 endif
1473
1474 # Shorthand for $(Q)$(MAKE) -f scripts/Makefile.clean obj=dir
1475 # Usage:
1476 # $(Q)$(MAKE) $(clean)=dir
1477 clean := -f $(srctree)/scripts/Makefile.clean obj
1478
1479 endif   # skip-makefile
1480
1481 PHONY += FORCE
1482 FORCE:
1483
1484 # Declare the contents of the .PHONY variable as phony.  We keep that
1485 # information in a variable so we can use it in if_changed and friends.
1486 .PHONY: $(PHONY)