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 = -rc2
  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 MKCONFIG        := $(srctree)/mkconfig
 169 export MKCONFIG
 170
 171 # Make sure CDPATH settings don't interfere
 172 unexport CDPATH
 173
 174 #########################################################################
 175
 176 HOSTARCH := $(shell uname -m | \
 177         sed -e s/i.86/x86/ \
 178             -e s/sun4u/sparc64/ \
 179             -e s/arm.*/arm/ \
 180             -e s/sa110/arm/ \
 181             -e s/ppc64/powerpc/ \
 182             -e s/ppc/powerpc/ \
 183             -e s/macppc/powerpc/\
 184             -e s/sh.*/sh/)
 185
 186 HOSTOS := $(shell uname -s | tr '[:upper:]' '[:lower:]' | \
 187             sed -e 's/\(cygwin\).*/cygwin/')
 188
 189 export  HOSTARCH HOSTOS
 190
 191 # Deal with colliding definitions from tcsh etc.
 192 VENDOR=
 193
 194 #########################################################################
 195
 196 # set default to nothing for native builds
 197 ifeq ($(HOSTARCH),$(ARCH))
 198 CROSS_COMPILE ?=
 199 endif
 200
 201 # SHELL used by kbuild
 202 CONFIG_SHELL := $(shell if [ -x "$$BASH" ]; then echo $$BASH; \
 203           else if [ -x /bin/bash ]; then echo /bin/bash; \
 204           else echo sh; fi ; fi)
 205
 206 HOSTCC       = gcc
 207 HOSTCFLAGS   = -Wall -Wstrict-prototypes -O2 -fomit-frame-pointer
 208
 209 ifeq ($(HOSTOS),cygwin)
 210 HOSTCFLAGS      += -ansi
 211 endif
 212
 213 # Mac OS X / Darwin's C preprocessor is Apple specific.  It
 214 # generates numerous errors and warnings.  We want to bypass it
 215 # and use GNU C's cpp.  To do this we pass the -traditional-cpp
 216 # option to the compiler.  Note that the -traditional-cpp flag
 217 # DOES NOT have the same semantics as GNU C's flag, all it does
 218 # is invoke the GNU preprocessor in stock ANSI/ISO C fashion.
 219 #
 220 # Apple's linker is similar, thanks to the new 2 stage linking
 221 # multiple symbol definitions are treated as errors, hence the
 222 # -multiply_defined suppress option to turn off this error.
 223 #
 224 ifeq ($(HOSTOS),darwin)
 225 # get major and minor product version (e.g. '10' and '6' for Snow Leopard)
 226 DARWIN_MAJOR_VERSION    = $(shell sw_vers -productVersion | cut -f 1 -d '.')
 227 DARWIN_MINOR_VERSION    = $(shell sw_vers -productVersion | cut -f 2 -d '.')
 228
 229 os_x_before     = $(shell if [ $(DARWIN_MAJOR_VERSION) -le $(1) -a \
 230         $(DARWIN_MINOR_VERSION) -le $(2) ] ; then echo "$(3)"; else echo "$(4)"; fi ;)
 231
 232 # Snow Leopards build environment has no longer restrictions as described above
 233 HOSTCC       = $(call os_x_before, 10, 5, "cc", "gcc")
 234 HOSTCFLAGS  += $(call os_x_before, 10, 4, "-traditional-cpp")
 235 HOSTLDFLAGS += $(call os_x_before, 10, 5, "-multiply_defined suppress")
 236 endif
 237
 238 # Decide whether to build built-in, modular, or both.
 239 # Normally, just do built-in.
 240
 241 KBUILD_MODULES :=
 242 KBUILD_BUILTIN := 1
 243
 244 #       If we have only "make modules", don't compile built-in objects.
 245 #       When we're building modules with modversions, we need to consider
 246 #       the built-in objects during the descend as well, in order to
 247 #       make sure the checksums are up to date before we record them.
 248
 249 ifeq ($(MAKECMDGOALS),modules)
 250   KBUILD_BUILTIN := $(if $(CONFIG_MODVERSIONS),1)
 251 endif
 252
 253 #       If we have "make <whatever> modules", compile modules
 254 #       in addition to whatever we do anyway.
 255 #       Just "make" or "make all" shall build modules as well
 256
 257 # U-Boot does not need modules
 258 #ifneq ($(filter all _all modules,$(MAKECMDGOALS)),)
 259 #  KBUILD_MODULES := 1
 260 #endif
 261
 262 #ifeq ($(MAKECMDGOALS),)
 263 #  KBUILD_MODULES := 1
 264 #endif
 265
 266 export KBUILD_MODULES KBUILD_BUILTIN
 267 export KBUILD_CHECKSRC KBUILD_SRC KBUILD_EXTMOD
 268
 269 # Beautify output
 270 # ---------------------------------------------------------------------------
 271 #
 272 # Normally, we echo the whole command before executing it. By making
 273 # that echo $($(quiet)$(cmd)), we now have the possibility to set
 274 # $(quiet) to choose other forms of output instead, e.g.
 275 #
 276 #         quiet_cmd_cc_o_c = Compiling $(RELDIR)/$@
 277 #         cmd_cc_o_c       = $(CC) $(c_flags) -c -o $@ $<
 278 #
 279 # If $(quiet) is empty, the whole command will be printed.
 280 # If it is set to "quiet_", only the short version will be printed.
 281 # If it is set to "silent_", nothing will be printed at all, since
 282 # the variable $(silent_cmd_cc_o_c) doesn't exist.
 283 #
 284 # A simple variant is to prefix commands with $(Q) - that's useful
 285 # for commands that shall be hidden in non-verbose mode.
 286 #
 287 #       $(Q)ln $@ :<
 288 #
 289 # If KBUILD_VERBOSE equals 0 then the above command will be hidden.
 290 # If KBUILD_VERBOSE equals 1 then the above command is displayed.
 291
 292 ifeq ($(KBUILD_VERBOSE),1)
 293   quiet =
 294   Q =
 295 else
 296   quiet=quiet_
 297   Q = @
 298 endif
 299
 300 # If the user is running make -s (silent mode), suppress echoing of
 301 # commands
 302
 303 ifneq ($(filter s% -s%,$(MAKEFLAGS)),)
 304   quiet=silent_
 305 endif
 306
 307 export quiet Q KBUILD_VERBOSE
 308
 309
 310 # Look for make include files relative to root of kernel src
 311 MAKEFLAGS += --include-dir=$(srctree)
 312
 313 # We need some generic definitions (do not try to remake the file).
 314 $(srctree)/scripts/Kbuild.include: ;
 315 include $(srctree)/scripts/Kbuild.include
 316
 317 # Make variables (CC, etc...)
 318
 319 AS              = $(CROSS_COMPILE)as
 320 # Always use GNU ld
 321 ifneq ($(shell $(CROSS_COMPILE)ld.bfd -v 2> /dev/null),)
 322 LD              = $(CROSS_COMPILE)ld.bfd
 323 else
 324 LD              = $(CROSS_COMPILE)ld
 325 endif
 326 CC              = $(CROSS_COMPILE)gcc
 327 CPP             = $(CC) -E
 328 AR              = $(CROSS_COMPILE)ar
 329 NM              = $(CROSS_COMPILE)nm
 330 LDR             = $(CROSS_COMPILE)ldr
 331 STRIP           = $(CROSS_COMPILE)strip
 332 OBJCOPY         = $(CROSS_COMPILE)objcopy
 333 OBJDUMP         = $(CROSS_COMPILE)objdump
 334 AWK             = awk
 335 RANLIB          = $(CROSS_COMPILE)RANLIB
 336 DTC             = dtc
 337 CHECK           = sparse
 338
 339 CHECKFLAGS     := -D__linux__ -Dlinux -D__STDC__ -Dunix -D__unix__ \
 340                   -Wbitwise -Wno-return-void -D__CHECK_ENDIAN__ $(CF)
 341
 342 KBUILD_CPPFLAGS := -D__KERNEL__
 343
 344 KBUILD_CFLAGS   := -Wall -Wstrict-prototypes \
 345                    -Wno-format-security \
 346                    -fno-builtin -ffreestanding
 347 KBUILD_AFLAGS   := -D__ASSEMBLY__
 348
 349 # Read UBOOTRELEASE from include/config/uboot.release (if it exists)
 350 UBOOTRELEASE = $(shell cat include/config/uboot.release 2> /dev/null)
 351 UBOOTVERSION = $(VERSION)$(if $(PATCHLEVEL),.$(PATCHLEVEL)$(if $(SUBLEVEL),.$(SUBLEVEL)))$(EXTRAVERSION)
 352
 353 export VERSION PATCHLEVEL SUBLEVEL UBOOTRELEASE UBOOTVERSION
 354 export ARCH CPU BOARD VENDOR SOC CPUDIR BOARDDIR
 355 export CONFIG_SHELL HOSTCC HOSTCFLAGS HOSTLDFLAGS CROSS_COMPILE AS LD CC
 356 export CPP AR NM LDR STRIP OBJCOPY OBJDUMP
 357 export MAKE AWK
 358 export DTC CHECK CHECKFLAGS
 359
 360 export KBUILD_CPPFLAGS NOSTDINC_FLAGS UBOOTINCLUDE OBJCOPYFLAGS LDFLAGS
 361 export KBUILD_CFLAGS KBUILD_AFLAGS
 362
 363 # When compiling out-of-tree modules, put MODVERDIR in the module
 364 # tree rather than in the kernel tree. The kernel tree might
 365 # even be read-only.
 366 export MODVERDIR := $(if $(KBUILD_EXTMOD),$(firstword $(KBUILD_EXTMOD))/).tmp_versions
 367
 368 # Files to ignore in find ... statements
 369
 370 RCS_FIND_IGNORE := \( -name SCCS -o -name BitKeeper -o -name .svn -o -name CVS \
 371                    -o -name .pc -o -name .hg -o -name .git \) -prune -o
 372 export RCS_TAR_IGNORE := --exclude SCCS --exclude BitKeeper --exclude .svn \
 373                          --exclude CVS --exclude .pc --exclude .hg --exclude .git
 374
 375 # ===========================================================================
 376 # Rules shared between *config targets and build targets
 377
 378 # Basic helpers built in scripts/
 379 PHONY += scripts_basic
 380 scripts_basic:
 381         $(Q)$(MAKE) $(build)=scripts/basic
 382         $(Q)rm -f .tmp_quiet_recordmcount
 383
 384 # To avoid any implicit rule to kick in, define an empty command.
 385 scripts/basic/%: scripts_basic ;
 386
 387 PHONY += outputmakefile
 388 # outputmakefile generates a Makefile in the output directory, if using a
 389 # separate output directory. This allows convenient use of make in the
 390 # output directory.
 391 outputmakefile:
 392 ifneq ($(KBUILD_SRC),)
 393         $(Q)ln -fsn $(srctree) source
 394         $(Q)$(CONFIG_SHELL) $(srctree)/scripts/mkmakefile \
 395             $(srctree) $(objtree) $(VERSION) $(PATCHLEVEL)
 396 endif
 397
 398 # To make sure we do not include .config for any of the *config targets
 399 # catch them early, and hand them over to scripts/kconfig/Makefile
 400 # It is allowed to specify more targets when calling make, including
 401 # mixing *config targets and build targets.
 402 # For example 'make oldconfig all'.
 403 # Detect when mixed targets is specified, and make a second invocation
 404 # of make so .config is not included in this case either (for *config).
 405
 406 version_h := include/generated/version_autogenerated.h
 407 timestamp_h := include/generated/timestamp_autogenerated.h
 408
 409 no-dot-config-targets := clean clobber mrproper distclean \
 410                          help %docs check% coccicheck \
 411                          ubootversion backup
 412
 413 config-targets := 0
 414 mixed-targets  := 0
 415 dot-config     := 1
 416
 417 ifneq ($(filter $(no-dot-config-targets), $(MAKECMDGOALS)),)
 418         ifeq ($(filter-out $(no-dot-config-targets), $(MAKECMDGOALS)),)
 419                 dot-config := 0
 420         endif
 421 endif
 422
 423 ifeq ($(KBUILD_EXTMOD),)
 424         ifneq ($(filter config %config,$(MAKECMDGOALS)),)
 425                 config-targets := 1
 426                 ifneq ($(filter-out config %config,$(MAKECMDGOALS)),)
 427                         mixed-targets := 1
 428                 endif
 429         endif
 430 endif
 431
 432 ifeq ($(mixed-targets),1)
 433 # ===========================================================================
 434 # We're called with mixed targets (*config and build targets).
 435 # Handle them one by one.
 436
 437 PHONY += $(MAKECMDGOALS) build-one-by-one
 438
 439 $(MAKECMDGOALS): build-one-by-one
 440         @:
 441
 442 build-one-by-one:
 443         $(Q)set -e; \
 444         for i in $(MAKECMDGOALS); do \
 445                 $(MAKE) -f $(srctree)/Makefile $$i; \
 446         done
 447
 448 else
 449 ifeq ($(config-targets),1)
 450 # ===========================================================================
 451 # *config targets only - make sure prerequisites are updated, and descend
 452 # in scripts/kconfig to make the *config target
 453
 454 # Read arch specific Makefile to set KBUILD_DEFCONFIG as needed.
 455 # KBUILD_DEFCONFIG may point out an alternative default configuration
 456 # used for 'make defconfig'
 457
 458 %_config:: outputmakefile
 459         @$(MKCONFIG) -A $(@:_config=)
 460
 461 else
 462 # ===========================================================================
 463 # Build targets only - this includes vmlinux, arch specific targets, clean
 464 # targets and others. In general all targets except *config targets.
 465
 466 # load ARCH, BOARD, and CPU configuration
 467 -include include/config.mk
 468
 469 ifeq ($(dot-config),1)
 470 # Read in config
 471 -include include/autoconf.mk
 472 -include include/autoconf.mk.dep
 473
 474 # load other configuration
 475 include $(srctree)/config.mk
 476
 477 ifeq ($(wildcard include/config.mk),)
 478 $(error "System not configured - see README")
 479 endif
 480
 481 # If board code explicitly specified LDSCRIPT or CONFIG_SYS_LDSCRIPT, use
 482 # that (or fail if absent).  Otherwise, search for a linker script in a
 483 # standard location.
 484
 485 ifndef LDSCRIPT
 486         #LDSCRIPT := $(srctree)/board/$(BOARDDIR)/u-boot.lds.debug
 487         ifdef CONFIG_SYS_LDSCRIPT
 488                 # need to strip off double quotes
 489                 LDSCRIPT := $(srctree)/$(CONFIG_SYS_LDSCRIPT:"%"=%)
 490         endif
 491 endif
 492
 493 # If there is no specified link script, we look in a number of places for it
 494 ifndef LDSCRIPT
 495         ifeq ($(CONFIG_NAND_U_BOOT),y)
 496                 LDSCRIPT := $(srctree)/board/$(BOARDDIR)/u-boot-nand.lds
 497                 ifeq ($(wildcard $(LDSCRIPT)),)
 498                         LDSCRIPT := $(srctree)/$(CPUDIR)/u-boot-nand.lds
 499                 endif
 500         endif
 501         ifeq ($(wildcard $(LDSCRIPT)),)
 502                 LDSCRIPT := $(srctree)/board/$(BOARDDIR)/u-boot.lds
 503         endif
 504         ifeq ($(wildcard $(LDSCRIPT)),)
 505                 LDSCRIPT := $(srctree)/$(CPUDIR)/u-boot.lds
 506         endif
 507         ifeq ($(wildcard $(LDSCRIPT)),)
 508                 LDSCRIPT := $(srctree)/arch/$(ARCH)/cpu/u-boot.lds
 509         endif
 510 endif
 511
 512 else
 513
 514
 515 endif # $(dot-config)
 516
 517 KBUILD_CFLAGS += -Os #-fomit-frame-pointer
 518
 519 ifdef BUILD_TAG
 520 KBUILD_CFLAGS += -DBUILD_TAG='"$(BUILD_TAG)"'
 521 endif
 522
 523 KBUILD_CFLAGS += $(call cc-option,-fno-stack-protector)
 524
 525 KBUILD_CFLAGS   += -g
 526 # $(KBUILD_AFLAGS) sets -g, which causes gcc to pass a suitable -g<format>
 527 # option to the assembler.
 528 KBUILD_AFLAGS   += -g
 529
 530 # Report stack usage if supported
 531 ifeq ($(shell $(CONFIG_SHELL) $(srctree)/scripts/gcc-stack-usage.sh $(CC)),y)
 532         KBUILD_CFLAGS += -fstack-usage
 533 endif
 534
 535 KBUILD_CFLAGS += $(call cc-option,-Wno-format-nonliteral)
 536
 537 # turn jbsr into jsr for m68k
 538 ifeq ($(ARCH),m68k)
 539 ifeq ($(findstring 3.4,$(shell $(CC) --version)),3.4)
 540 KBUILD_AFLAGS += -Wa,-gstabs,-S
 541 endif
 542 endif
 543
 544 ifneq ($(CONFIG_SYS_TEXT_BASE),)
 545 KBUILD_CPPFLAGS += -DCONFIG_SYS_TEXT_BASE=$(CONFIG_SYS_TEXT_BASE)
 546 endif
 547
 548 export CONFIG_SYS_TEXT_BASE
 549
 550 # Use UBOOTINCLUDE when you must reference the include/ directory.
 551 # Needed to be compatible with the O= option
 552 UBOOTINCLUDE    := \
 553                 -Iinclude \
 554                 $(if $(KBUILD_SRC), -I$(srctree)/include) \
 555                 -I$(srctree)/arch/$(ARCH)/include
 556
 557 NOSTDINC_FLAGS += -nostdinc -isystem $(shell $(CC) -print-file-name=include)
 558 CHECKFLAGS     += $(NOSTDINC_FLAGS)
 559
 560 # FIX ME
 561 cpp_flags := $(KBUILD_CPPFLAGS) $(PLATFORM_CPPFLAGS) $(UBOOTINCLUDE) \
 562                                                         $(NOSTDINC_FLAGS)
 563 c_flags := $(KBUILD_CFLAGS) $(cpp_flags)
 564
 565 #########################################################################
 566 # U-Boot objects....order is important (i.e. start must be first)
 567
 568 head-y := $(CPUDIR)/start.o
 569 head-$(CONFIG_4xx) += arch/powerpc/cpu/ppc4xx/resetvec.o
 570 head-$(CONFIG_MPC85xx) += arch/powerpc/cpu/mpc85xx/resetvec.o
 571
 572 HAVE_VENDOR_COMMON_LIB = $(if $(wildcard $(srctree)/board/$(VENDOR)/common/Makefile),y,n)
 573
 574 libs-y += lib/
 575 libs-$(HAVE_VENDOR_COMMON_LIB) += board/$(VENDOR)/common/
 576 libs-y += $(CPUDIR)/
 577 ifdef SOC
 578 libs-y += $(CPUDIR)/$(SOC)/
 579 endif
 580 libs-$(CONFIG_OF_EMBED) += dts/
 581 libs-y += arch/$(ARCH)/lib/
 582 libs-y += fs/
 583 libs-y += net/
 584 libs-y += disk/
 585 libs-y += drivers/
 586 libs-$(CONFIG_DM) += drivers/core/
 587 libs-y += drivers/dma/
 588 libs-y += drivers/gpio/
 589 libs-y += drivers/i2c/
 590 libs-y += drivers/input/
 591 libs-y += drivers/mmc/
 592 libs-y += drivers/mtd/
 593 libs-$(CONFIG_CMD_NAND) += drivers/mtd/nand/
 594 libs-y += drivers/mtd/onenand/
 595 libs-$(CONFIG_CMD_UBI) += drivers/mtd/ubi/
 596 libs-y += drivers/mtd/spi/
 597 libs-y += drivers/net/
 598 libs-y += drivers/net/phy/
 599 libs-y += drivers/pci/
 600 libs-y += drivers/power/ \
 601         drivers/power/fuel_gauge/ \
 602         drivers/power/mfd/ \
 603         drivers/power/pmic/ \
 604         drivers/power/battery/
 605 libs-y += drivers/spi/
 606 libs-$(CONFIG_FMAN_ENET) += drivers/net/fm/
 607 libs-$(CONFIG_SYS_FSL_DDR) += drivers/ddr/fsl/
 608 libs-y += drivers/serial/
 609 libs-y += drivers/usb/eth/
 610 libs-y += drivers/usb/gadget/
 611 libs-y += drivers/usb/host/
 612 libs-y += drivers/usb/musb/
 613 libs-y += drivers/usb/musb-new/
 614 libs-y += drivers/usb/phy/
 615 libs-y += drivers/usb/ulpi/
 616 libs-y += common/
 617 libs-y += lib/libfdt/
 618 libs-$(CONFIG_API) += api/
 619 libs-$(CONFIG_HAS_POST) += post/
 620 libs-y += test/
 621 libs-y += test/dm/
 622 libs-$(CONFIG_DM_DEMO) += drivers/demo/
 623
 624 ifneq (,$(filter $(SOC), mx25 mx27 mx5 mx6 mx31 mx35 mxs vf610))
 625 libs-y += arch/$(ARCH)/imx-common/
 626 endif
 627
 628 libs-$(CONFIG_ARM) += arch/arm/cpu/
 629 libs-$(CONFIG_PPC) += arch/powerpc/cpu/
 630
 631 libs-y += $(if $(BOARDDIR),board/$(BOARDDIR)/)
 632
 633 libs-y := $(sort $(libs-y))
 634
 635 u-boot-dirs     := $(patsubst %/,%,$(filter %/, $(libs-y))) tools examples
 636
 637 u-boot-alldirs  := $(sort $(u-boot-dirs) $(patsubst %/,%,$(filter %/, $(libs-))))
 638
 639 libs-y          := $(patsubst %/, %/built-in.o, $(libs-y))
 640
 641 u-boot-init := $(head-y)
 642 u-boot-main := $(libs-y)
 643
 644
 645 # Add GCC lib
 646 ifdef CONFIG_USE_PRIVATE_LIBGCC
 647 ifeq ($(CONFIG_USE_PRIVATE_LIBGCC),y)
 648 PLATFORM_LIBGCC = arch/$(ARCH)/lib/lib.a
 649 else
 650 PLATFORM_LIBGCC = -L $(CONFIG_USE_PRIVATE_LIBGCC) -lgcc
 651 endif
 652 else
 653 PLATFORM_LIBGCC := -L $(shell dirname `$(CC) $(c_flags) -print-libgcc-file-name`) -lgcc
 654 endif
 655 PLATFORM_LIBS += $(PLATFORM_LIBGCC)
 656 export PLATFORM_LIBS
 657
 658 # Special flags for CPP when processing the linker script.
 659 # Pass the version down so we can handle backwards compatibility
 660 # on the fly.
 661 LDPPFLAGS += \
 662         -include $(srctree)/include/u-boot/u-boot.lds.h \
 663         -DCPUDIR=$(CPUDIR) \
 664         $(shell $(LD) --version | \
 665           sed -ne 's/GNU ld version \([0-9][0-9]*\)\.\([0-9][0-9]*\).*/-DLD_MAJOR=\1 -DLD_MINOR=\2/p')
 666
 667 #########################################################################
 668 #########################################################################
 669
 670 ifneq ($(CONFIG_BOARD_SIZE_LIMIT),)
 671 BOARD_SIZE_CHECK = \
 672         @actual=`wc -c $@ | awk '{print $$1}'`; \
 673         limit=`printf "%d" $(CONFIG_BOARD_SIZE_LIMIT)`; \
 674         if test $$actual -gt $$limit; then \
 675                 echo "$@ exceeds file size limit:" >&2 ; \
 676                 echo "  limit:  $$limit bytes" >&2 ; \
 677                 echo "  actual: $$actual bytes" >&2 ; \
 678                 echo "  excess: $$((actual - limit)) bytes" >&2; \
 679                 exit 1; \
 680         fi
 681 else
 682 BOARD_SIZE_CHECK =
 683 endif
 684
 685 # Statically apply RELA-style relocations (currently arm64 only)
 686 ifneq ($(CONFIG_STATIC_RELA),)
 687 # $(1) is u-boot ELF, $(2) is u-boot bin, $(3) is text base
 688 DO_STATIC_RELA = \
 689         start=$$($(NM) $(1) | grep __rel_dyn_start | cut -f 1 -d ' '); \
 690         end=$$($(NM) $(1) | grep __rel_dyn_end | cut -f 1 -d ' '); \
 691         tools/relocate-rela $(2) $(3) $$start $$end
 692 else
 693 DO_STATIC_RELA =
 694 endif
 695
 696 # Always append ALL so that arch config.mk's can add custom ones
 697 ALL-y += u-boot.srec u-boot.bin System.map
 698
 699 ALL-$(CONFIG_NAND_U_BOOT) += u-boot-nand.bin
 700 ALL-$(CONFIG_ONENAND_U_BOOT) += u-boot-onenand.bin
 701 ALL-$(CONFIG_RAMBOOT_PBL) += u-boot.pbl
 702 ALL-$(CONFIG_SPL) += spl/u-boot-spl.bin
 703 ALL-$(CONFIG_SPL_FRAMEWORK) += u-boot.img
 704 ALL-$(CONFIG_TPL) += tpl/u-boot-tpl.bin
 705 ALL-$(CONFIG_OF_SEPARATE) += u-boot.dtb u-boot-dtb.bin
 706 ALL-$(CONFIG_OF_HOSTFILE) += u-boot.dtb
 707 ifneq ($(CONFIG_SPL_TARGET),)
 708 ALL-$(CONFIG_SPL) += $(CONFIG_SPL_TARGET:"%"=%)
 709 endif
 710 ALL-$(CONFIG_REMAKE_ELF) += u-boot.elf
 711
 712 # enable combined SPL/u-boot/dtb rules for tegra
 713 ifneq ($(CONFIG_TEGRA),)
 714 ifeq ($(CONFIG_SPL),y)
 715 ifeq ($(CONFIG_OF_SEPARATE),y)
 716 ALL-y += u-boot-dtb-tegra.bin
 717 else
 718 ALL-y += u-boot-nodtb-tegra.bin
 719 endif
 720 endif
 721 endif
 722
 723 LDFLAGS_u-boot += $(LDFLAGS_FINAL)
 724 ifneq ($(CONFIG_SYS_TEXT_BASE),)
 725 LDFLAGS_u-boot += -Ttext $(CONFIG_SYS_TEXT_BASE)
 726 endif
 727
 728 quiet_cmd_objcopy = OBJCOPY $@
 729 cmd_objcopy = $(OBJCOPY) $(OBJCOPYFLAGS) $(OBJCOPYFLAGS_$(@F)) $< $@
 730
 731 quiet_cmd_mkimage = UIMAGE  $@
 732 cmd_mkimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -d $< $@ \
 733         $(if $(KBUILD_VERBOSE:1=), >/dev/null)
 734
 735 quiet_cmd_cat = CAT     $@
 736 cmd_cat = cat $(filter-out $(PHONY), $^) > $@
 737
 738 append = cat $(filter-out $< $(PHONY), $^) >> $@
 739
 740 quiet_cmd_pad_cat = CAT     $@
 741 cmd_pad_cat = $(cmd_objcopy) && $(append) || rm -f $@
 742
 743 all:            $(ALL-y)
 744
 745 PHONY += dtbs
 746 dtbs dts/dt.dtb: checkdtc u-boot
 747         $(Q)$(MAKE) $(build)=dts dtbs
 748
 749 u-boot-dtb.bin: u-boot.bin dts/dt.dtb FORCE
 750         $(call if_changed,cat)
 751
 752 %.imx: %.bin
 753         $(Q)$(MAKE) $(build)=arch/arm/imx-common $@
 754
 755 quiet_cmd_copy = COPY    $@
 756       cmd_copy = cp $< $@
 757
 758 u-boot.dtb: dts/dt.dtb
 759         $(call cmd,copy)
 760
 761 OBJCOPYFLAGS_u-boot.hex := -O ihex
 762
 763 OBJCOPYFLAGS_u-boot.srec := -O srec
 764
 765 u-boot.hex u-boot.srec: u-boot FORCE
 766         $(call if_changed,objcopy)
 767
 768 OBJCOPYFLAGS_u-boot.bin := -O binary
 769
 770 u-boot.bin: u-boot FORCE
 771         $(call if_changed,objcopy)
 772         $(call DO_STATIC_RELA,$<,$@,$(CONFIG_SYS_TEXT_BASE))
 773         $(BOARD_SIZE_CHECK)
 774
 775 u-boot.ldr:     u-boot
 776                 $(CREATE_LDR_ENV)
 777                 $(LDR) -T $(CONFIG_BFIN_CPU) -c $@ $< $(LDR_FLAGS)
 778                 $(BOARD_SIZE_CHECK)
 779
 780 OBJCOPYFLAGS_u-boot.ldr.hex := -I binary -O ihex
 781
 782 OBJCOPYFLAGS_u-boot.ldr.srec := -I binary -O srec
 783
 784 u-boot.ldr.hex u-boot.ldr.srec: u-boot.ldr FORCE
 785         $(call if_changed,objcopy)
 786
 787 #
 788 # U-Boot entry point, needed for booting of full-blown U-Boot
 789 # from the SPL U-Boot version.
 790 #
 791 ifndef CONFIG_SYS_UBOOT_START
 792 CONFIG_SYS_UBOOT_START := 0
 793 endif
 794
 795 MKIMAGEFLAGS_u-boot.img = -A $(ARCH) -T firmware -C none -O u-boot \
 796         -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \
 797         -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board"
 798
 799 MKIMAGEFLAGS_u-boot.kwb = -n $(srctree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%) \
 800         -T kwbimage -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE)
 801
 802 MKIMAGEFLAGS_u-boot.pbl = -n $(srctree)/$(CONFIG_SYS_FSL_PBL_RCW:"%"=%) \
 803                 -R $(srctree)/$(CONFIG_SYS_FSL_PBL_PBI:"%"=%) -T pblimage
 804
 805 u-boot.img u-boot.kwb u-boot.pbl: u-boot.bin FORCE
 806         $(call if_changed,mkimage)
 807
 808 u-boot.sha1:    u-boot.bin
 809                 tools/ubsha1 u-boot.bin
 810
 811 u-boot.dis:     u-boot
 812                 $(OBJDUMP) -d $< > $@
 813
 814 ifdef CONFIG_TPL
 815 SPL_PAYLOAD := tpl/u-boot-with-tpl.bin
 816 else
 817 SPL_PAYLOAD := u-boot.bin
 818 endif
 819
 820 OBJCOPYFLAGS_u-boot-with-spl.bin = -I binary -O binary \
 821                                    --pad-to=$(CONFIG_SPL_PAD_TO)
 822 u-boot-with-spl.bin: spl/u-boot-spl.bin $(SPL_PAYLOAD) FORCE
 823         $(call if_changed,pad_cat)
 824
 825 OBJCOPYFLAGS_u-boot-with-tpl.bin = -I binary -O binary \
 826                                    --pad-to=$(CONFIG_TPL_PAD_TO)
 827 tpl/u-boot-with-tpl.bin: tpl/u-boot-tpl.bin u-boot.bin FORCE
 828         $(call if_changed,pad_cat)
 829
 830 SPL: spl/u-boot-spl.bin FORCE
 831         $(Q)$(MAKE) $(build)=arch/arm/imx-common $@
 832
 833 u-boot-with-spl.imx u-boot-with-nand-spl.imx: SPL u-boot.bin FORCE
 834         $(Q)$(MAKE) $(build)=arch/arm/imx-common $@
 835
 836 MKIMAGEFLAGS_u-boot.ubl = -n $(UBL_CONFIG) -T ublimage -e $(CONFIG_SYS_TEXT_BASE)
 837
 838 u-boot.ubl: u-boot-with-spl.bin FORCE
 839         $(call if_changed,mkimage)
 840
 841 MKIMAGEFLAGS_u-boot-spl.ais = -s -n $(if $(CONFIG_AIS_CONFIG_FILE), \
 842         $(srctree)/$(CONFIG_AIS_CONFIG_FILE:"%"=%),"/dev/null") \
 843         -T aisimage -e $(CONFIG_SPL_TEXT_BASE)
 844 spl/u-boot-spl.ais: spl/u-boot-spl.bin FORCE
 845         $(call if_changed,mkimage)
 846
 847 OBJCOPYFLAGS_u-boot.ais = -I binary -O binary --pad-to=$(CONFIG_SPL_MAX_SIZE)
 848 u-boot.ais: spl/u-boot-spl.ais u-boot.img FORCE
 849         $(call if_changed,pad_cat)
 850
 851 u-boot.sb: u-boot.bin spl/u-boot-spl.bin
 852         $(Q)$(MAKE) $(build)=arch/arm/cpu/arm926ejs/mxs u-boot.sb
 853
 854 # On x600 (SPEAr600) U-Boot is appended to U-Boot SPL.
 855 # Both images are created using mkimage (crc etc), so that the ROM
 856 # bootloader can check its integrity. Padding needs to be done to the
 857 # SPL image (with mkimage header) and not the binary. Otherwise the resulting image
 858 # which is loaded/copied by the ROM bootloader to SRAM doesn't fit.
 859 # The resulting image containing both U-Boot images is called u-boot.spr
 860 MKIMAGEFLAGS_u-boot-spl.img = -A $(ARCH) -T firmware -C none \
 861         -a $(CONFIG_SPL_TEXT_BASE) -e $(CONFIG_SPL_TEXT_BASE) -n XLOADER
 862 spl/u-boot-spl.img: spl/u-boot-spl.bin FORCE
 863         $(call if_changed,mkimage)
 864
 865 OBJCOPYFLAGS_u-boot.spr = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) \
 866                           --gap-fill=0xff
 867 u-boot.spr: spl/u-boot-spl.img u-boot.img FORCE
 868         $(call if_changed,pad_cat)
 869
 870 ifneq ($(CONFIG_TEGRA),)
 871 OBJCOPYFLAGS_u-boot-nodtb-tegra.bin = -O binary --pad-to=$(CONFIG_SYS_TEXT_BASE)
 872 u-boot-nodtb-tegra.bin: spl/u-boot-spl u-boot.bin FORCE
 873         $(call if_changed,pad_cat)
 874
 875 ifeq ($(CONFIG_OF_SEPARATE),y)
 876 u-boot-dtb-tegra.bin: u-boot-nodtb-tegra.bin dts/dt.dtb FORCE
 877         $(call if_changed,cat)
 878 endif
 879 endif
 880
 881 u-boot-img.bin: spl/u-boot-spl.bin u-boot.img FORCE
 882         $(call if_changed,cat)
 883
 884 # PPC4xx needs the SPL at the end of the image, since the reset vector
 885 # is located at 0xfffffffc. So we can't use the "u-boot-img.bin" target
 886 # and need to introduce a new build target with the full blown U-Boot
 887 # at the start padded up to the start of the SPL image. And then concat
 888 # the SPL image to the end.
 889
 890 OBJCOPYFLAGS_u-boot-img-spl-at-end.bin := -I binary -O binary \
 891         --pad-to=$(CONFIG_UBOOT_PAD_TO) --gap-fill=0xff
 892 u-boot-img-spl-at-end.bin: u-boot.img spl/u-boot-spl.bin FORCE
 893         $(call if_changed,pad_cat)
 894
 895 # Create a new ELF from a raw binary file.  This is useful for arm64
 896 # where static relocation needs to be performed on the raw binary,
 897 # but certain simulators only accept an ELF file (but don't do the
 898 # relocation).
 899 # FIXME refactor dts/Makefile to share target/arch detection
 900 u-boot.elf: u-boot.bin
 901         @$(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=$(CONFIG_SYS_TEXT_BASE)
 906
 907 # Rule to link u-boot
 908 # May be overridden by arch/$(ARCH)/config.mk
 909 quiet_cmd_u-boot__ ?= LD      $@
 910       cmd_u-boot__ ?= $(LD) $(LDFLAGS) $(LDFLAGS_u-boot) -o $@ \
 911       -T u-boot.lds $(u-boot-init)                             \
 912       --start-group $(u-boot-main) --end-group                 \
 913       $(PLATFORM_LIBS) -Map u-boot.map
 914
 915 u-boot: $(u-boot-init) $(u-boot-main) u-boot.lds
 916         $(call if_changed,u-boot__)
 917 ifeq ($(CONFIG_KALLSYMS),y)
 918         smap=`$(call SYSTEM_MAP,u-boot) | \
 919                 awk '$$2 ~ /[tTwW]/ {printf $$1 $$3 "\\\\000"}'` ; \
 920         $(CC) $(c_flags) -DSYSTEM_MAP="\"$${smap}\"" \
 921                 -c $(srctree)/common/system_map.c -o common/system_map.o
 922         $(call cmd,u-boot__) common/system_map.o
 923 endif
 924
 925 # The actual objects are generated when descending,
 926 # make sure no implicit rule kicks in
 927 $(sort $(u-boot-init) $(u-boot-main)): $(u-boot-dirs) ;
 928
 929 # Handle descending into subdirectories listed in $(vmlinux-dirs)
 930 # Preset locale variables to speed up the build process. Limit locale
 931 # tweaks to this spot to avoid wrong language settings when running
 932 # make menuconfig etc.
 933 # Error messages still appears in the original language
 934
 935 PHONY += $(u-boot-dirs)
 936 $(u-boot-dirs): prepare scripts
 937         $(Q)$(MAKE) $(build)=$@
 938
 939 tools: prepare
 940 # The "tools" are needed early
 941 $(filter-out tools, $(u-boot-dirs)): tools
 942 # The "examples" conditionally depend on U-Boot (say, when USE_PRIVATE_LIBGCC
 943 # is "yes"), so compile examples after U-Boot is compiled.
 944 examples: $(filter-out examples, $(u-boot-dirs))
 945
 946 define filechk_uboot.release
 947         echo "$(UBOOTVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))"
 948 endef
 949
 950 # Store (new) UBOOTRELEASE string in include/config/uboot.release
 951 include/config/uboot.release: Makefile FORCE
 952         $(call filechk,uboot.release)
 953
 954
 955 # Things we need to do before we recursively start building the kernel
 956 # or the modules are listed in "prepare".
 957 # A multi level approach is used. prepareN is processed before prepareN-1.
 958 # archprepare is used in arch Makefiles and when processed asm symlink,
 959 # version.h and scripts_basic is processed / created.
 960
 961 # Listed in dependency order
 962 PHONY += prepare archprepare prepare0 prepare1 prepare2 prepare3
 963
 964 # prepare3 is used to check if we are building in a separate output directory,
 965 # and if so do:
 966 # 1) Check that make has not been executed in the kernel src $(srctree)
 967 prepare3: include/config/uboot.release
 968 ifneq ($(KBUILD_SRC),)
 969         @$(kecho) '  Using $(srctree) as source for u-boot'
 970         $(Q)if [ -f $(srctree)/include/config.mk ]; then \
 971                 echo >&2 "  $(srctree) is not clean, please run 'make mrproper'"; \
 972                 echo >&2 "  in the '$(srctree)' directory.";\
 973                 /bin/false; \
 974         fi;
 975 endif
 976
 977 # prepare2 creates a makefile if using a separate output directory
 978 prepare2: prepare3 outputmakefile
 979
 980 prepare1: prepare2 $(version_h) $(timestamp_h)
 981 ifeq ($(__HAVE_ARCH_GENERIC_BOARD),)
 982 ifeq ($(CONFIG_SYS_GENERIC_BOARD),y)
 983         @echo >&2 "  Your architecture does not support generic board."
 984         @echo >&2 "  Please undefine CONFIG_SYS_GENERIC_BOARD in your board config file."
 985         @/bin/false
 986 endif
 987 endif
 988 ifeq ($(wildcard $(LDSCRIPT)),)
 989         @echo >&2 "  Could not find linker script."
 990         @/bin/false
 991 endif
 992
 993 archprepare: prepare1 scripts_basic
 994
 995 prepare0: archprepare FORCE
 996         $(Q)$(MAKE) $(build)=.
 997
 998 # All the preparing..
 999 prepare: prepare0
1000
1001 # Generate some files
1002 # ---------------------------------------------------------------------------
1003
1004 define filechk_version.h
1005         (echo \#define PLAIN_VERSION \"$(UBOOTRELEASE)\"; \
1006         echo \#define U_BOOT_VERSION \"U-Boot \" PLAIN_VERSION; \
1007         echo \#define CC_VERSION_STRING \"$$($(CC) --version | head -n 1)\"; \
1008         echo \#define LD_VERSION_STRING \"$$($(LD) --version | head -n 1)\"; )
1009 endef
1010
1011 define filechk_timestamp.h
1012         (LC_ALL=C date +'#define U_BOOT_DATE "%b %d %C%y"'; \
1013         LC_ALL=C date +'#define U_BOOT_TIME "%T"')
1014 endef
1015
1016 $(version_h): include/config/uboot.release FORCE
1017         $(call filechk,version.h)
1018
1019 $(timestamp_h): $(srctree)/Makefile FORCE
1020         $(call filechk,timestamp.h)
1021
1022 #
1023 # Auto-generate the autoconf.mk file (which is included by all makefiles)
1024 #
1025 # This target actually generates 2 files; autoconf.mk and autoconf.mk.dep.
1026 # the dep file is only include in this top level makefile to determine when
1027 # to regenerate the autoconf.mk file.
1028
1029 quiet_cmd_autoconf_dep = GEN     $@
1030       cmd_autoconf_dep = $(CC) -x c -DDO_DEPS_ONLY -M $(c_flags) \
1031         -MQ include/autoconf.mk $(srctree)/include/common.h > $@ || rm $@
1032
1033 include/autoconf.mk.dep: include/config.h include/common.h
1034         $(call cmd,autoconf_dep)
1035
1036 quiet_cmd_autoconf = GEN     $@
1037       cmd_autoconf = \
1038         $(CPP) $(c_flags) -DDO_DEPS_ONLY -dM $(srctree)/include/common.h > $@.tmp && \
1039         sed -n -f $(srctree)/tools/scripts/define2mk.sed $@.tmp > $@; \
1040         rm $@.tmp
1041
1042 include/autoconf.mk: include/config.h
1043         $(call cmd,autoconf)
1044
1045 # ---------------------------------------------------------------------------
1046
1047 PHONY += depend dep
1048 depend dep:
1049         @echo '*** Warning: make $@ is unnecessary now.'
1050
1051 # ---------------------------------------------------------------------------
1052 quiet_cmd_cpp_lds = LDS     $@
1053 cmd_cpp_lds = $(CPP) $(cpp_flags) $(LDPPFLAGS) -ansi -D__ASSEMBLY__ \
1054                 -x assembler-with-cpp -P -o $@ $<
1055
1056 u-boot.lds: $(LDSCRIPT) prepare FORCE
1057         $(call if_changed,cpp_lds)
1058
1059 PHONY += nand_spl
1060 nand_spl: prepare
1061         $(Q)$(MAKE) $(build)=nand_spl/board/$(BOARDDIR) all
1062         @echo >&2
1063         @echo >&2 "==================== WARNING ====================="
1064         @echo >&2 "nand_spl will not be included in v2014.07 release."
1065         @echo >&2 "Please switch over to SPL."
1066         @echo >&2 "Otherwise, this board will be removed."
1067         @echo >&2 "=================================================="
1068         @echo >&2
1069
1070 nand_spl/u-boot-spl-16k.bin: nand_spl
1071         @:
1072
1073 u-boot-nand.bin: nand_spl/u-boot-spl-16k.bin u-boot.bin FORCE
1074         $(call if_changed,cat)
1075
1076 spl/u-boot-spl.bin: spl/u-boot-spl
1077         @:
1078 spl/u-boot-spl: tools prepare
1079         $(Q)$(MAKE) obj=spl -f $(srctree)/spl/Makefile all
1080
1081 tpl/u-boot-tpl.bin: tools prepare
1082         $(Q)$(MAKE) obj=tpl -f $(srctree)/spl/Makefile all CONFIG_TPL_BUILD=y
1083
1084 TAG_SUBDIRS := $(u-boot-dirs) include
1085
1086 FIND := find
1087 FINDFLAGS := -L
1088
1089 tags ctags:
1090                 ctags -w -o ctags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \
1091                                                 -name '*.[chS]' -print`
1092
1093 etags:
1094                 etags -a -o $(obj)etags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \
1095                                                 -name '*.[chS]' -print`
1096 cscope:
1097                 $(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) -name '*.[chS]' -print > \
1098                                                 cscope.files
1099                 cscope -b -q -k
1100
1101 SYSTEM_MAP = \
1102                 $(NM) $1 | \
1103                 grep -v '\(compiled\)\|\(\.o$$\)\|\( [aUw] \)\|\(\.\.ng$$\)\|\(LASH[RL]DI\)' | \
1104                 LC_ALL=C sort
1105 System.map:     u-boot
1106                 @$(call SYSTEM_MAP,$<) > $@
1107
1108 checkdtc:
1109         @if test $(call dtc-version) -lt 0104; then \
1110                 echo '*** Your dtc is too old, please upgrade to dtc 1.4 or newer'; \
1111                 false; \
1112         fi
1113
1114 #########################################################################
1115
1116 # ARM relocations should all be R_ARM_RELATIVE (32-bit) or
1117 # R_AARCH64_RELATIVE (64-bit).
1118 checkarmreloc: u-boot
1119         @RELOC="`$(CROSS_COMPILE)readelf -r -W $< | cut -d ' ' -f 4 | \
1120                 grep R_A | sort -u`"; \
1121         if test "$$RELOC" != "R_ARM_RELATIVE" -a \
1122                  "$$RELOC" != "R_AARCH64_RELATIVE"; then \
1123                 echo "$< contains unexpected relocations: $$RELOC"; \
1124                 false; \
1125         fi
1126
1127 env: scripts_basic
1128         $(Q)$(MAKE) $(build)=tools/$@
1129
1130 tools-all: export HOST_TOOLS_ALL=y
1131 tools-all: env tools ;
1132
1133 cross_tools: export CROSS_BUILD_TOOLS=y
1134 cross_tools: tools ;
1135
1136 .PHONY : CHANGELOG
1137 CHANGELOG:
1138         git log --no-merges U-Boot-1_1_5.. | \
1139         unexpand -a | sed -e 's/\s\s*$$//' > $@
1140
1141 include/license.h: tools/bin2header COPYING
1142         cat COPYING | gzip -9 -c | ./tools/bin2header license_gzip > include/license.h
1143 #########################################################################
1144
1145 ###
1146 # Cleaning is done on three levels.
1147 # make clean     Delete most generated files
1148 #                Leave enough to build external modules
1149 # make mrproper  Delete the current configuration, and all generated files
1150 # make distclean Remove editor backup files, patch leftover files and the like
1151
1152 # Directories & files removed with 'make clean'
1153 CLEAN_DIRS  += $(MODVERDIR)
1154 CLEAN_FILES += u-boot.lds include/bmp_logo.h include/bmp_logo_data.h \
1155                include/autoconf.mk* include/spl-autoconf.mk \
1156                include/tpl-autoconf.mk
1157
1158 # Directories & files removed with 'make clobber'
1159 CLOBBER_DIRS  += $(patsubst %,spl/%, $(filter-out Makefile, \
1160                  $(shell ls -1 spl 2>/dev/null))) \
1161                  tpl
1162 CLOBBER_FILES += u-boot* MLO* SPL System.map nand_spl/u-boot*
1163
1164 # Directories & files removed with 'make mrproper'
1165 MRPROPER_DIRS  += include/config include/generated
1166 MRPROPER_FILES += .config .config.old \
1167                   tags TAGS cscope* GPATH GTAGS GRTAGS GSYMS \
1168                   include/config.h include/config.mk
1169
1170 # clean - Delete most, but leave enough to build external modules
1171 #
1172 clean: rm-dirs  := $(CLEAN_DIRS)
1173 clean: rm-files := $(CLEAN_FILES)
1174
1175 clean-dirs      := $(foreach f,$(u-boot-alldirs),$(if $(wildcard $f/Makefile),$f))
1176
1177 clean-dirs      := $(addprefix _clean_, $(clean-dirs) doc/DocBook)
1178
1179 PHONY += $(clean-dirs) clean archclean
1180 $(clean-dirs):
1181         $(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$@)
1182
1183 # TODO: Do not use *.cfgtmp
1184 clean: $(clean-dirs)
1185         $(call cmd,rmdirs)
1186         $(call cmd,rmfiles)
1187         @find $(if $(KBUILD_EXTMOD), $(KBUILD_EXTMOD), .) $(RCS_FIND_IGNORE) \
1188                 \( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \
1189                 -o -name '*.ko.*' -o -name '*.su' -o -name '*.cfgtmp' \
1190                 -o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \
1191                 -o -name '*.symtypes' -o -name 'modules.order' \
1192                 -o -name modules.builtin -o -name '.tmp_*.o.*' \
1193                 -o -name '*.gcno' \) -type f -print | xargs rm -f
1194         @find $(if $(KBUILD_EXTMOD), $(KBUILD_EXTMOD), .) $(RCS_FIND_IGNORE) \
1195                 -path './nand_spl/*' -type l -print | xargs rm -f
1196
1197 # clobber
1198 #
1199 clobber: rm-dirs  := $(CLOBBER_DIRS)
1200 clobber: rm-files := $(CLOBBER_FILES)
1201
1202 PHONY += clobber
1203
1204 clobber: clean
1205         $(call cmd,rmdirs)
1206         $(call cmd,rmfiles)
1207
1208 # mrproper - Delete all generated files, including .config
1209 #
1210 mrproper: rm-dirs  := $(wildcard $(MRPROPER_DIRS))
1211 mrproper: rm-files := $(wildcard $(MRPROPER_FILES))
1212 mrproper-dirs      := $(addprefix _mrproper_,scripts)
1213
1214 PHONY += $(mrproper-dirs) mrproper archmrproper
1215 $(mrproper-dirs):
1216         $(Q)$(MAKE) $(clean)=$(patsubst _mrproper_%,%,$@)
1217
1218 mrproper: clobber $(mrproper-dirs)
1219         $(call cmd,rmdirs)
1220         $(call cmd,rmfiles)
1221         @rm -f arch/*/include/asm/arch arch/*/include/asm/proc
1222
1223 # distclean
1224 #
1225 PHONY += distclean
1226
1227 distclean: mrproper
1228         @find $(srctree) $(RCS_FIND_IGNORE) \
1229                 \( -name '*.orig' -o -name '*.rej' -o -name '*~' \
1230                 -o -name '*.bak' -o -name '#*#' -o -name '.*.orig' \
1231                 -o -name '.*.rej' -o -name '*.pyc' \
1232                 -o -name '*%' -o -name '.*.cmd' -o -name 'core' \) \
1233                 -type f -print | xargs rm -f
1234
1235 backup:
1236         F=`basename $(srctree)` ; cd .. ; \
1237         gtar --force-local -zcvf `LC_ALL=C date "+$$F-%Y-%m-%d-%T.tar.gz"` $$F
1238
1239 help:
1240         @echo  'Cleaning targets:'
1241         @echo  '  clean           - Remove most generated files but keep the config and'
1242         @echo  '                    necessities for testing u-boot'
1243         @echo  '  clobber         - Remove most generated files but keep the config'
1244         @echo  '  mrproper        - Remove all generated files + config + various backup files'
1245         @echo  '  distclean       - mrproper + remove editor backup and patch files'
1246         @echo  ''
1247 # uncomment after adding Kconfig feature
1248 #       @echo  'Configuration targets:'
1249 #       @$(MAKE) -f $(srctree)/scripts/kconfig/Makefile help
1250 #       @echo  ''
1251         @echo  'Other generic targets:'
1252         @echo  '  all             - Build all necessary images depending on configuration'
1253         @echo  '  u-boot          - Build the bare u-boot'
1254         @echo  '  dir/            - Build all files in dir and below'
1255         @echo  '  dir/file.[oisS] - Build specified target only'
1256         @echo  '  dir/file.lst    - Build specified mixed source/assembly target only'
1257         @echo  '                    (requires a recent binutils and recent build (System.map))'
1258         @echo  '  tags/TAGS       - Generate tags file for editors'
1259         @echo  '  cscope          - Generate cscope index'
1260         @echo  '  ubootrelease    - Output the release version string'
1261         @echo  '  ubootversion    - Output the version stored in Makefile'
1262         @echo  ''
1263         @echo  'Static analysers'
1264         @echo  '  checkstack      - Generate a list of stack hogs'
1265         @echo  ''
1266         @echo  'Documentation targets:'
1267         @$(MAKE) -f $(srctree)/doc/DocBook/Makefile dochelp
1268         @echo  ''
1269         @echo  '  make V=0|1 [targets] 0 => quiet build (default), 1 => verbose build'
1270         @echo  '  make V=2   [targets] 2 => give reason for rebuild of target'
1271         @echo  '  make O=dir [targets] Locate all output files in "dir", including .config'
1272         @echo  '  make C=1   [targets] Check all c source with $$CHECK (sparse by default)'
1273         @echo  '  make C=2   [targets] Force check of all c source with $$CHECK'
1274         @echo  '  make RECORDMCOUNT_WARN=1 [targets] Warn about ignored mcount sections'
1275         @echo  '  make W=n   [targets] Enable extra gcc checks, n=1,2,3 where'
1276         @echo  '                1: warnings which may be relevant and do not occur too often'
1277         @echo  '                2: warnings which occur quite often but may still be relevant'
1278         @echo  '                3: more obscure warnings, can most likely be ignored'
1279         @echo  '                Multiple levels can be combined with W=12 or W=123'
1280         @echo  ''
1281         @echo  'Execute "make" or "make all" to build all targets marked with [*] '
1282         @echo  'For further info see the ./README file'
1283
1284
1285 # Documentation targets
1286 # ---------------------------------------------------------------------------
1287 %docs: scripts_basic FORCE
1288         $(Q)$(MAKE) $(build)=scripts build_docproc
1289         $(Q)$(MAKE) $(build)=doc/DocBook $@
1290
1291 # Dummies...
1292 PHONY += prepare scripts
1293 prepare: ;
1294 scripts: ;
1295
1296 endif #ifeq ($(config-targets),1)
1297 endif #ifeq ($(mixed-targets),1)
1298
1299 PHONY += checkstack ubootrelease ubootversion
1300
1301 checkstack:
1302         $(OBJDUMP) -d u-boot $$(find . -name u-boot-spl) | \
1303         $(PERL) $(src)/scripts/checkstack.pl $(ARCH)
1304
1305 ubootrelease:
1306         @echo "$(UBOOTVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))"
1307
1308 ubootversion:
1309         @echo $(UBOOTVERSION)
1310
1311 # Single targets
1312 # ---------------------------------------------------------------------------
1313 # Single targets are compatible with:
1314 # - build with mixed source and output
1315 # - build with separate output dir 'make O=...'
1316 # - external modules
1317 #
1318 #  target-dir => where to store outputfile
1319 #  build-dir  => directory in kernel source tree to use
1320
1321 ifeq ($(KBUILD_EXTMOD),)
1322         build-dir  = $(patsubst %/,%,$(dir $@))
1323         target-dir = $(dir $@)
1324 else
1325         zap-slash=$(filter-out .,$(patsubst %/,%,$(dir $@)))
1326         build-dir  = $(KBUILD_EXTMOD)$(if $(zap-slash),/$(zap-slash))
1327         target-dir = $(if $(KBUILD_EXTMOD),$(dir $<),$(dir $@))
1328 endif
1329
1330 %.s: %.c prepare scripts FORCE
1331         $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1332 %.i: %.c prepare scripts FORCE
1333         $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1334 %.o: %.c prepare scripts FORCE
1335         $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1336 %.lst: %.c prepare scripts FORCE
1337         $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1338 %.s: %.S prepare scripts FORCE
1339         $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1340 %.o: %.S prepare scripts FORCE
1341         $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1342 %.symtypes: %.c prepare scripts FORCE
1343         $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1344
1345 # Modules
1346 /: prepare scripts FORCE
1347         $(cmd_crmodverdir)
1348         $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \
1349         $(build)=$(build-dir)
1350 %/: prepare scripts FORCE
1351         $(cmd_crmodverdir)
1352         $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \
1353         $(build)=$(build-dir)
1354 %.ko: prepare scripts FORCE
1355         $(cmd_crmodverdir)
1356         $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1)   \
1357         $(build)=$(build-dir) $(@:.ko=.o)
1358         $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost
1359
1360 # FIXME Should go into a make.lib or something
1361 # ===========================================================================
1362
1363 quiet_cmd_rmdirs = $(if $(wildcard $(rm-dirs)),CLEAN   $(wildcard $(rm-dirs)))
1364       cmd_rmdirs = rm -rf $(rm-dirs)
1365
1366 quiet_cmd_rmfiles = $(if $(wildcard $(rm-files)),CLEAN   $(wildcard $(rm-files)))
1367       cmd_rmfiles = rm -f $(rm-files)
1368
1369 # read all saved command lines
1370
1371 targets := $(wildcard $(sort $(targets)))
1372 cmd_files := $(wildcard .*.cmd $(foreach f,$(targets),$(dir $(f)).$(notdir $(f)).cmd))
1373
1374 ifneq ($(cmd_files),)
1375   $(cmd_files): ;       # Do not try to update included dependency files
1376   include $(cmd_files)
1377 endif
1378
1379 # Shorthand for $(Q)$(MAKE) -f scripts/Makefile.clean obj=dir
1380 # Usage:
1381 # $(Q)$(MAKE) $(clean)=dir
1382 clean := -f $(if $(KBUILD_SRC),$(srctree)/)scripts/Makefile.clean obj
1383
1384 endif   # skip-makefile
1385
1386 PHONY += FORCE
1387 FORCE:
1388
1389 # Declare the contents of the .PHONY variable as phony.  We keep that
1390 # information in a variable so we can use it in if_changed and friends.
1391 .PHONY: $(PHONY)