Makefile

   1 # Makefile for buildroot
   2 #
   3 # Copyright (C) 1999-2005 by Erik Andersen <andersen@codepoet.org>
   4 # Copyright (C) 2006-2014 by the Buildroot developers <buildroot@uclibc.org>
   5 # Copyright (C) 2014-2016 by the Buildroot developers <buildroot@buildroot.org>
   6 #
   7 # This program is free software; you can redistribute it and/or modify
   8 # it under the terms of the GNU General Public License as published by
   9 # the Free Software Foundation; either version 2 of the License, or
  10 # (at your option) any later version.
  11 #
  12 # This program is distributed in the hope that it will be useful,
  13 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  15 # General Public License for more details.
  16 #
  17 # You should have received a copy of the GNU General Public License
  18 # along with this program; if not, write to the Free Software
  19 # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
  20 #
  21
  22 #--------------------------------------------------------------
  23 # Just run 'make menuconfig', configure stuff, then run 'make'.
  24 # You shouldn't need to mess with anything beyond this point...
  25 #--------------------------------------------------------------
  26
  27 # we want bash as shell
  28 SHELL := $(shell if [ -x "$$BASH" ]; then echo $$BASH; \
  29          else if [ -x /bin/bash ]; then echo /bin/bash; \
  30          else echo sh; fi; fi)
  31
  32 # Trick for always running with a fixed umask
  33 UMASK = 0022
  34 ifneq ($(shell umask),$(UMASK))
  35 .PHONY: _all $(MAKECMDGOALS)
  36
  37 $(MAKECMDGOALS): _all
  38         @:
  39
  40 _all:
  41         @umask $(UMASK) && $(MAKE) --no-print-directory $(MAKECMDGOALS)
  42
  43 else # umask
  44
  45 # This is our default rule, so must come first
  46 all:
  47
  48 # Set and export the version string
  49 export BR2_VERSION := 2016.11-git
  50
  51 # Save running make version since it's clobbered by the make package
  52 RUNNING_MAKE_VERSION := $(MAKE_VERSION)
  53
  54 # Check for minimal make version (note: this check will break at make 10.x)
  55 MIN_MAKE_VERSION = 3.81
  56 ifneq ($(firstword $(sort $(RUNNING_MAKE_VERSION) $(MIN_MAKE_VERSION))),$(MIN_MAKE_VERSION))
  57 $(error You have make '$(RUNNING_MAKE_VERSION)' installed. GNU make >= $(MIN_MAKE_VERSION) is required)
  58 endif
  59
  60 # Parallel execution of this Makefile is disabled because it changes
  61 # the packages building order, that can be a problem for two reasons:
  62 # - If a package has an unspecified optional dependency and that
  63 #   dependency is present when the package is built, it is used,
  64 #   otherwise it isn't (but compilation happily proceeds) so the end
  65 #   result will differ if the order is swapped due to parallel
  66 #   building.
  67 # - Also changing the building order can be a problem if two packages
  68 #   manipulate the same file in the target directory.
  69 #
  70 # Taking into account the above considerations, if you still want to execute
  71 # this top-level Makefile in parallel comment the ".NOTPARALLEL" line and
  72 # use the -j<jobs> option when building, e.g:
  73 #      make -j$((`getconf _NPROCESSORS_ONLN`+1))
  74 .NOTPARALLEL:
  75
  76 # absolute path
  77 TOPDIR := $(CURDIR)
  78 CONFIG_CONFIG_IN = Config.in
  79 CONFIG = support/kconfig
  80 DATE := $(shell date +%Y%m%d)
  81
  82 # Compute the full local version string so packages can use it as-is
  83 # Need to export it, so it can be got from environment in children (eg. mconf)
  84 export BR2_VERSION_FULL := $(BR2_VERSION)$(shell $(TOPDIR)/support/scripts/setlocalversion)
  85
  86 noconfig_targets := menuconfig nconfig gconfig xconfig config oldconfig randconfig \
  87         defconfig %_defconfig allyesconfig allnoconfig silentoldconfig release \
  88         randpackageconfig allyespackageconfig allnopackageconfig \
  89         print-version olddefconfig distclean
  90
  91 # Some global targets do not trigger a build, but are used to collect
  92 # metadata, or do various checks. When such targets are triggered,
  93 # some packages should not do their configuration sanity
  94 # checks. Provide them a BR_BUILDING variable set to 'y' when we're
  95 # actually building and they should do their sanity checks.
  96 #
  97 # We're building in two situations: when MAKECMDGOALS is empty
  98 # (default target is to build), or when MAKECMDGOALS contains
  99 # something else than one of the nobuild_targets.
 100 nobuild_targets := source source-check \
 101         legal-info external-deps _external-deps \
 102         clean distclean help
 103 ifeq ($(MAKECMDGOALS),)
 104 BR_BUILDING = y
 105 else ifneq ($(filter-out $(nobuild_targets),$(MAKECMDGOALS)),)
 106 BR_BUILDING = y
 107 endif
 108
 109 # Include some helper macros and variables
 110 include support/misc/utils.mk
 111
 112 ifneq ("$(origin O)", "command line")
 113 O := output
 114 CONFIG_DIR := $(TOPDIR)
 115 NEED_WRAPPER =
 116 else
 117 # other packages might also support Linux-style out of tree builds
 118 # with the O=<dir> syntax (E.G. BusyBox does). As make automatically
 119 # forwards command line variable definitions those packages get very
 120 # confused. Fix this by telling make to not do so
 121 MAKEOVERRIDES =
 122 # strangely enough O is still passed to submakes with MAKEOVERRIDES
 123 # (with make 3.81 atleast), the only thing that changes is the output
 124 # of the origin function (command line -> environment).
 125 # Unfortunately some packages don't look at origin (E.G. uClibc 0.9.31+)
 126 # To really make O go away, we have to override it.
 127 override O := $(O)
 128 CONFIG_DIR := $(O)
 129 # we need to pass O= everywhere we call back into the toplevel makefile
 130 EXTRAMAKEARGS = O=$(O)
 131 NEED_WRAPPER = y
 132 endif
 133
 134 # bash prints the name of the directory on 'cd <dir>' if CDPATH is
 135 # set, so unset it here to not cause problems. Notice that the export
 136 # line doesn't affect the environment of $(shell ..) calls, so
 137 # explictly throw away any output from 'cd' here.
 138 export CDPATH :=
 139 BASE_DIR := $(shell mkdir -p $(O) && cd $(O) >/dev/null && pwd)
 140 $(if $(BASE_DIR),, $(error output directory "$(O)" does not exist))
 141
 142
 143 # Handling of BR2_EXTERNAL.
 144 #
 145 # The value of BR2_EXTERNAL is stored in .br-external in the output directory.
 146 # On subsequent invocations of make, it is read in. It can still be overridden
 147 # on the command line, therefore the file is re-created every time make is run.
 148 #
 149 # When BR2_EXTERNAL is set to an empty value (e.g. explicitly in command
 150 # line), the .br-external file is removed and we point to
 151 # support/dummy-external. This makes sure we can unconditionally include the
 152 # Config.in and external.mk from the BR2_EXTERNAL directory. In this case,
 153 # override is necessary so the user can clear BR2_EXTERNAL from the command
 154 # line, but the dummy path is still used internally.
 155
 156 BR2_EXTERNAL_FILE = $(BASE_DIR)/.br-external
 157 -include $(BR2_EXTERNAL_FILE)
 158 ifeq ($(BR2_EXTERNAL),)
 159   override BR2_EXTERNAL = support/dummy-external
 160   $(shell rm -f $(BR2_EXTERNAL_FILE))
 161 else
 162   _BR2_EXTERNAL = $(shell cd $(BR2_EXTERNAL) >/dev/null 2>&1 && pwd)
 163   ifeq ($(_BR2_EXTERNAL),)
 164     $(error BR2_EXTERNAL='$(BR2_EXTERNAL)' does not exist, relative to $(TOPDIR))
 165   endif
 166   override BR2_EXTERNAL := $(_BR2_EXTERNAL)
 167   $(shell echo BR2_EXTERNAL ?= $(BR2_EXTERNAL) > $(BR2_EXTERNAL_FILE))
 168 endif
 169
 170 # To make sure that the environment variable overrides the .config option,
 171 # set this before including .config.
 172 ifneq ($(BR2_DL_DIR),)
 173 DL_DIR := $(BR2_DL_DIR)
 174 endif
 175 ifneq ($(BR2_CCACHE_DIR),)
 176 BR_CACHE_DIR := $(BR2_CCACHE_DIR)
 177 endif
 178
 179 # Need that early, before we scan packages
 180 # Avoids doing the $(or...) everytime
 181 BR_GRAPH_OUT := $(or $(BR2_GRAPH_OUT),pdf)
 182
 183 BUILD_DIR := $(BASE_DIR)/build
 184 BINARIES_DIR := $(BASE_DIR)/images
 185 TARGET_DIR := $(BASE_DIR)/target
 186 # initial definition so that 'make clean' works for most users, even without
 187 # .config. HOST_DIR will be overwritten later when .config is included.
 188 HOST_DIR := $(BASE_DIR)/host
 189 GRAPHS_DIR := $(BASE_DIR)/graphs
 190
 191 LEGAL_INFO_DIR = $(BASE_DIR)/legal-info
 192 REDIST_SOURCES_DIR_TARGET = $(LEGAL_INFO_DIR)/sources
 193 REDIST_SOURCES_DIR_HOST = $(LEGAL_INFO_DIR)/host-sources
 194 LICENSE_FILES_DIR_TARGET = $(LEGAL_INFO_DIR)/licenses
 195 LICENSE_FILES_DIR_HOST = $(LEGAL_INFO_DIR)/host-licenses
 196 LEGAL_MANIFEST_CSV_TARGET = $(LEGAL_INFO_DIR)/manifest.csv
 197 LEGAL_MANIFEST_CSV_HOST = $(LEGAL_INFO_DIR)/host-manifest.csv
 198 LEGAL_WARNINGS = $(LEGAL_INFO_DIR)/.warnings
 199 LEGAL_REPORT = $(LEGAL_INFO_DIR)/README
 200
 201 ################################################################################
 202 #
 203 # staging and target directories do NOT list these as
 204 # dependencies anywhere else
 205 #
 206 ################################################################################
 207 $(BUILD_DIR) $(TARGET_DIR) $(HOST_DIR) $(BINARIES_DIR) $(LEGAL_INFO_DIR) $(REDIST_SOURCES_DIR_TARGET) $(REDIST_SOURCES_DIR_HOST):
 208         @mkdir -p $@
 209
 210 BR2_CONFIG = $(CONFIG_DIR)/.config
 211
 212 # Pull in the user's configuration file
 213 ifeq ($(filter $(noconfig_targets),$(MAKECMDGOALS)),)
 214 -include $(BR2_CONFIG)
 215 endif
 216
 217 # timezone and locale may affect build output
 218 ifeq ($(BR2_REPRODUCIBLE),y)
 219 export TZ=UTC
 220 export LANG=C
 221 export LC_ALL=C
 222 endif
 223
 224 # To put more focus on warnings, be less verbose as default
 225 # Use 'make V=1' to see the full commands
 226 ifeq ("$(origin V)", "command line")
 227   KBUILD_VERBOSE = $(V)
 228 endif
 229 ifndef KBUILD_VERBOSE
 230   KBUILD_VERBOSE = 0
 231 endif
 232
 233 ifeq ($(KBUILD_VERBOSE),1)
 234   Q =
 235 ifndef VERBOSE
 236   VERBOSE = 1
 237 endif
 238 export VERBOSE
 239 else
 240   Q = @
 241 endif
 242
 243 # kconfig uses CONFIG_SHELL
 244 CONFIG_SHELL := $(SHELL)
 245
 246 export SHELL CONFIG_SHELL Q KBUILD_VERBOSE
 247
 248 ifndef HOSTAR
 249 HOSTAR := ar
 250 endif
 251 ifndef HOSTAS
 252 HOSTAS := as
 253 endif
 254 ifndef HOSTCC
 255 HOSTCC := gcc
 256 HOSTCC := $(shell which $(HOSTCC) || type -p $(HOSTCC) || echo gcc)
 257 endif
 258 HOSTCC_NOCCACHE := $(HOSTCC)
 259 ifndef HOSTCXX
 260 HOSTCXX := g++
 261 HOSTCXX := $(shell which $(HOSTCXX) || type -p $(HOSTCXX) || echo g++)
 262 endif
 263 HOSTCXX_NOCCACHE := $(HOSTCXX)
 264 ifndef HOSTCPP
 265 HOSTCPP := cpp
 266 endif
 267 ifndef HOSTLD
 268 HOSTLD := ld
 269 endif
 270 ifndef HOSTLN
 271 HOSTLN := ln
 272 endif
 273 ifndef HOSTNM
 274 HOSTNM := nm
 275 endif
 276 ifndef HOSTOBJCOPY
 277 HOSTOBJCOPY := objcopy
 278 endif
 279 ifndef HOSTRANLIB
 280 HOSTRANLIB := ranlib
 281 endif
 282 HOSTAR := $(shell which $(HOSTAR) || type -p $(HOSTAR) || echo ar)
 283 HOSTAS := $(shell which $(HOSTAS) || type -p $(HOSTAS) || echo as)
 284 HOSTCPP := $(shell which $(HOSTCPP) || type -p $(HOSTCPP) || echo cpp)
 285 HOSTLD := $(shell which $(HOSTLD) || type -p $(HOSTLD) || echo ld)
 286 HOSTLN := $(shell which $(HOSTLN) || type -p $(HOSTLN) || echo ln)
 287 HOSTNM := $(shell which $(HOSTNM) || type -p $(HOSTNM) || echo nm)
 288 HOSTOBJCOPY := $(shell which $(HOSTOBJCOPY) || type -p $(HOSTOBJCOPY) || echo objcopy)
 289 HOSTRANLIB := $(shell which $(HOSTRANLIB) || type -p $(HOSTRANLIB) || echo ranlib)
 290
 291 export HOSTAR HOSTAS HOSTCC HOSTCXX HOSTLD
 292 export HOSTCC_NOCCACHE HOSTCXX_NOCCACHE
 293
 294 # Determine the userland we are running on.
 295 #
 296 # Note that, despite its name, we are not interested in the actual
 297 # architecture name. This is mostly used to determine whether some
 298 # of the binary tools (e.g. pre-built external toolchains) can run
 299 # on the current host. So we need to know if the userland we're
 300 # running on can actually run those toolchains.
 301 #
 302 # For example, a 64-bit prebuilt toolchain will not run on a 64-bit
 303 # kernel if the userland is 32-bit (e.g. in a chroot for example).
 304 #
 305 # So, we extract the first part of the tuple the host gcc was
 306 # configured to generate code for; we assume this is our userland.
 307 #
 308 export HOSTARCH := $(shell LC_ALL=C $(HOSTCC_NOCCACHE) -v 2>&1 | \
 309         sed -e '/^Target: \([^-]*\).*/!d' \
 310             -e 's//\1/' \
 311             -e 's/i.86/x86/' \
 312             -e 's/sun4u/sparc64/' \
 313             -e 's/arm.*/arm/' \
 314             -e 's/sa110/arm/' \
 315             -e 's/ppc64/powerpc64/' \
 316             -e 's/ppc/powerpc/' \
 317             -e 's/macppc/powerpc/' \
 318             -e 's/sh.*/sh/' )
 319
 320 HOSTCC_VERSION := $(shell $(HOSTCC_NOCCACHE) --version | \
 321         sed -n -r 's/^.* ([0-9]*)\.([0-9]*)\.([0-9]*)[ ]*.*/\1 \2/p')
 322
 323 # For gcc >= 5.x, we only need the major version.
 324 ifneq ($(firstword $(HOSTCC_VERSION)),4)
 325 HOSTCC_VERSION := $(firstword $(HOSTCC_VERSION))
 326 endif
 327
 328 # Make sure pkg-config doesn't look outside the buildroot tree
 329 HOST_PKG_CONFIG_PATH := $(PKG_CONFIG_PATH)
 330 unexport PKG_CONFIG_PATH
 331 unexport PKG_CONFIG_SYSROOT_DIR
 332 unexport PKG_CONFIG_LIBDIR
 333
 334 # Having DESTDIR set in the environment confuses the installation
 335 # steps of some packages.
 336 unexport DESTDIR
 337
 338 # Causes breakage with packages that needs host-ruby
 339 unexport RUBYOPT
 340
 341 include package/pkg-utils.mk
 342 include package/doc-asciidoc.mk
 343
 344 ifeq ($(BR2_HAVE_DOT_CONFIG),y)
 345
 346 ################################################################################
 347 #
 348 # Hide troublesome environment variables from sub processes
 349 #
 350 ################################################################################
 351 unexport CROSS_COMPILE
 352 unexport ARCH
 353 unexport CC
 354 unexport LD
 355 unexport AR
 356 unexport CXX
 357 unexport CPP
 358 unexport RANLIB
 359 unexport CFLAGS
 360 unexport CXXFLAGS
 361 unexport GREP_OPTIONS
 362 unexport TAR_OPTIONS
 363 unexport CONFIG_SITE
 364 unexport QMAKESPEC
 365 unexport TERMINFO
 366 unexport MACHINE
 367 unexport O
 368
 369 GNU_HOST_NAME := $(shell support/gnuconfig/config.guess)
 370
 371 PACKAGES :=
 372 PACKAGES_ALL :=
 373
 374 # silent mode requested?
 375 QUIET := $(if $(findstring s,$(filter-out --%,$(MAKEFLAGS))),-q)
 376
 377 # Strip off the annoying quoting
 378 ARCH := $(call qstrip,$(BR2_ARCH))
 379
 380 KERNEL_ARCH := $(shell echo "$(ARCH)" | sed -e "s/-.*//" \
 381         -e s/i.86/i386/ -e s/sun4u/sparc64/ \
 382         -e s/arcle/arc/ \
 383         -e s/arceb/arc/ \
 384         -e s/arm.*/arm/ -e s/sa110/arm/ \
 385         -e s/aarch64.*/arm64/ \
 386         -e s/bfin/blackfin/ \
 387         -e s/parisc64/parisc/ \
 388         -e s/powerpc64.*/powerpc/ \
 389         -e s/ppc.*/powerpc/ -e s/mips.*/mips/ \
 390         -e s/sh.*/sh/ \
 391         -e s/microblazeel/microblaze/)
 392
 393 ZCAT := $(call qstrip,$(BR2_ZCAT))
 394 BZCAT := $(call qstrip,$(BR2_BZCAT))
 395 XZCAT := $(call qstrip,$(BR2_XZCAT))
 396 TAR_OPTIONS = $(call qstrip,$(BR2_TAR_OPTIONS)) -xf
 397
 398 # packages compiled for the host go here
 399 HOST_DIR := $(call qstrip,$(BR2_HOST_DIR))
 400
 401 # Quotes are needed for spaces and all in the original PATH content.
 402 BR_PATH = "$(HOST_DIR)/bin:$(HOST_DIR)/sbin:$(HOST_DIR)/usr/bin:$(HOST_DIR)/usr/sbin:$(PATH)"
 403
 404 # Location of a file giving a big fat warning that output/target
 405 # should not be used as the root filesystem.
 406 TARGET_DIR_WARNING_FILE = $(TARGET_DIR)/THIS_IS_NOT_YOUR_ROOT_FILESYSTEM
 407
 408 ifeq ($(BR2_CCACHE),y)
 409 CCACHE := $(HOST_DIR)/usr/bin/ccache
 410 BR_CACHE_DIR ?= $(call qstrip,$(BR2_CCACHE_DIR))
 411 export BR_CACHE_DIR
 412 HOSTCC := $(CCACHE) $(HOSTCC)
 413 HOSTCXX := $(CCACHE) $(HOSTCXX)
 414 else
 415 export BR_NO_CCACHE
 416 endif
 417
 418 # Scripts in support/ or post-build scripts may need to reference
 419 # these locations, so export them so it is easier to use
 420 export BR2_CONFIG
 421 export BR2_REPRODUCIBLE
 422 export TARGET_DIR
 423 export STAGING_DIR
 424 export HOST_DIR
 425 export BINARIES_DIR
 426 export BASE_DIR
 427
 428 ################################################################################
 429 #
 430 # You should probably leave this stuff alone unless you know
 431 # what you are doing.
 432 #
 433 ################################################################################
 434
 435 all: world
 436
 437 # Include legacy before the other things, because package .mk files
 438 # may rely on it.
 439 include Makefile.legacy
 440
 441 include package/Makefile.in
 442 include support/dependencies/dependencies.mk
 443
 444 include toolchain/*.mk
 445 include toolchain/*/*.mk
 446
 447 # Include the package override file if one has been provided in the
 448 # configuration.
 449 PACKAGE_OVERRIDE_FILE = $(call qstrip,$(BR2_PACKAGE_OVERRIDE_FILE))
 450 ifneq ($(PACKAGE_OVERRIDE_FILE),)
 451 -include $(PACKAGE_OVERRIDE_FILE)
 452 endif
 453
 454 include $(sort $(wildcard package/*/*.mk))
 455
 456 include boot/common.mk
 457 include linux/linux.mk
 458 include fs/common.mk
 459
 460 include $(BR2_EXTERNAL)/external.mk
 461
 462 # Now we are sure we have all the packages scanned and defined. We now
 463 # check for each package in the list of enabled packages, that all its
 464 # dependencies are indeed enabled.
 465 #
 466 # Only trigger the check for default builds. If the user forces building
 467 # a package, even if not enabled in the configuration, we want to accept
 468 # it.
 469 #
 470 ifeq ($(MAKECMDGOALS),)
 471
 472 define CHECK_ONE_DEPENDENCY
 473 ifeq ($$($(2)_TYPE),target)
 474 ifeq ($$($(2)_IS_VIRTUAL),)
 475 ifneq ($$($$($(2)_KCONFIG_VAR)),y)
 476 $$(error $$($(2)_NAME) is in the dependency chain of $$($(1)_NAME) that \
 477 has added it to its _DEPENDENCIES variable without selecting it or \
 478 depending on it from Config.in)
 479 endif
 480 endif
 481 endif
 482 endef
 483
 484 $(foreach pkg,$(call UPPERCASE,$(PACKAGES)),\
 485         $(foreach dep,$(call UPPERCASE,$($(pkg)_FINAL_ALL_DEPENDENCIES)),\
 486                 $(eval $(call CHECK_ONE_DEPENDENCY,$(pkg),$(dep))$(sep))))
 487
 488 endif
 489
 490 dirs: $(BUILD_DIR) $(STAGING_DIR) $(TARGET_DIR) \
 491         $(HOST_DIR) $(BINARIES_DIR)
 492
 493 $(BUILD_DIR)/buildroot-config/auto.conf: $(BR2_CONFIG)
 494         $(MAKE1) $(EXTRAMAKEARGS) HOSTCC="$(HOSTCC_NOCCACHE)" HOSTCXX="$(HOSTCXX_NOCCACHE)" silentoldconfig
 495
 496 prepare: $(BUILD_DIR)/buildroot-config/auto.conf
 497
 498 world: target-post-image
 499
 500 .PHONY: all world toolchain dirs clean distclean source outputmakefile \
 501         legal-info legal-info-prepare legal-info-clean printvars help \
 502         list-defconfigs target-finalize target-post-image source-check
 503
 504 # Populating the staging with the base directories is handled by the skeleton package
 505 $(STAGING_DIR):
 506         @mkdir -p $(STAGING_DIR)
 507         @ln -snf $(STAGING_DIR) $(BASE_DIR)/staging
 508
 509 RSYNC_VCS_EXCLUSIONS = \
 510         --exclude .svn --exclude .git --exclude .hg --exclude .bzr \
 511         --exclude CVS
 512
 513 STRIP_FIND_CMD = find $(TARGET_DIR)
 514 ifneq (,$(call qstrip,$(BR2_STRIP_EXCLUDE_DIRS)))
 515 STRIP_FIND_CMD += \( $(call finddirclauses,$(TARGET_DIR),$(call qstrip,$(BR2_STRIP_EXCLUDE_DIRS))) \) -prune -o
 516 endif
 517 STRIP_FIND_CMD += -type f \( -perm /111 -o -name '*.so*' \)
 518 # file exclusions:
 519 # - libpthread.so: a non-stripped libpthread shared library is needed for
 520 #   proper debugging of pthread programs using gdb.
 521 # - ld.so: a non-stripped dynamic linker library is needed for valgrind
 522 # - kernel modules (*.ko): do not function properly when stripped like normal
 523 #   applications and libraries. Normally kernel modules are already excluded
 524 #   by the executable permission check above, so the explicit exclusion is only
 525 #   done for kernel modules with incorrect permissions.
 526 STRIP_FIND_CMD += -not \( $(call findfileclauses,libpthread*.so* ld-*.so* *.ko $(call qstrip,$(BR2_STRIP_EXCLUDE_FILES))) \) -print0
 527
 528 ifeq ($(BR2_ECLIPSE_REGISTER),y)
 529 define TOOLCHAIN_ECLIPSE_REGISTER
 530         ./support/scripts/eclipse-register-toolchain `readlink -f $(O)` \
 531                 $(notdir $(TARGET_CROSS)) $(BR2_ARCH)
 532 endef
 533 TARGET_FINALIZE_HOOKS += TOOLCHAIN_ECLIPSE_REGISTER
 534 endif
 535
 536 # Generate locale data. Basically, we call the localedef program
 537 # (built by the host-localedef package) for each locale. The input
 538 # data comes preferably from the toolchain, or if the toolchain does
 539 # not have them (Linaro toolchains), we use the ones available on the
 540 # host machine.
 541 ifeq ($(BR2_TOOLCHAIN_USES_GLIBC),y)
 542 GLIBC_GENERATE_LOCALES = $(call qstrip,$(BR2_GENERATE_LOCALE))
 543 ifneq ($(GLIBC_GENERATE_LOCALES),)
 544 PACKAGES += host-localedef
 545
 546 define GENERATE_GLIBC_LOCALES
 547         $(Q)mkdir -p $(TARGET_DIR)/usr/lib/locale/
 548         $(Q)for locale in $(GLIBC_GENERATE_LOCALES) ; do \
 549                 inputfile=`echo $${locale} | cut -f1 -d'.'` ; \
 550                 charmap=`echo $${locale} | cut -f2 -d'.' -s` ; \
 551                 if test -z "$${charmap}" ; then \
 552                         charmap="UTF-8" ; \
 553                 fi ; \
 554                 echo "Generating locale $${inputfile}.$${charmap}" ; \
 555                 I18NPATH=$(STAGING_DIR)/usr/share/i18n:/usr/share/i18n \
 556                 $(HOST_DIR)/usr/bin/localedef \
 557                         --prefix=$(TARGET_DIR) \
 558                         --$(call LOWERCASE,$(BR2_ENDIAN))-endian \
 559                         -i $${inputfile} -f $${charmap} \
 560                         $${locale} ; \
 561         done
 562 endef
 563 TARGET_FINALIZE_HOOKS += GENERATE_GLIBC_LOCALES
 564 endif
 565 endif
 566
 567 ifeq ($(BR2_ENABLE_LOCALE_PURGE),y)
 568 LOCALE_WHITELIST = $(BUILD_DIR)/locales.nopurge
 569 LOCALE_NOPURGE = $(call qstrip,$(BR2_ENABLE_LOCALE_WHITELIST))
 570
 571 # This piece of junk does the following:
 572 # First collect the whitelist in a file.
 573 # Then go over all the locale dirs and for each subdir, check if it exists
 574 # in the whitelist file. If it doesn't, kill it.
 575 # Finally, specifically for X11, regenerate locale.dir from the whitelist.
 576 define PURGE_LOCALES
 577         rm -f $(LOCALE_WHITELIST)
 578         for i in $(LOCALE_NOPURGE) locale-archive; do echo $$i >> $(LOCALE_WHITELIST); done
 579
 580         for dir in $(wildcard $(addprefix $(TARGET_DIR),/usr/share/locale /usr/share/X11/locale /usr/lib/locale)); \
 581         do \
 582                 for langdir in $$dir/*; \
 583                 do \
 584                         if [ -e "$${langdir}" ]; \
 585                         then \
 586                                 grep -qx "$${langdir##*/}" $(LOCALE_WHITELIST) || rm -rf $$langdir; \
 587                         fi \
 588                 done; \
 589         done
 590         if [ -d $(TARGET_DIR)/usr/share/X11/locale ]; \
 591         then \
 592                 for lang in $(LOCALE_NOPURGE); \
 593                 do \
 594                         if [ -f $(TARGET_DIR)/usr/share/X11/locale/$$lang/XLC_LOCALE ]; \
 595                         then \
 596                                 echo "$$lang/XLC_LOCALE: $$lang"; \
 597                         fi \
 598                 done > $(TARGET_DIR)/usr/share/X11/locale/locale.dir; \
 599         fi
 600 endef
 601 TARGET_FINALIZE_HOOKS += PURGE_LOCALES
 602 endif
 603
 604 $(TARGETS_ROOTFS): target-finalize
 605
 606 target-finalize: $(PACKAGES)
 607         @$(call MESSAGE,"Finalizing target directory")
 608         $(foreach hook,$(TARGET_FINALIZE_HOOKS),$($(hook))$(sep))
 609         rm -rf $(TARGET_DIR)/usr/include $(TARGET_DIR)/usr/share/aclocal \
 610                 $(TARGET_DIR)/usr/lib/pkgconfig $(TARGET_DIR)/usr/share/pkgconfig \
 611                 $(TARGET_DIR)/usr/lib/cmake $(TARGET_DIR)/usr/share/cmake
 612         find $(TARGET_DIR)/usr/{lib,share}/ -name '*.cmake' -print0 | xargs -0 rm -f
 613         find $(TARGET_DIR)/lib $(TARGET_DIR)/usr/lib $(TARGET_DIR)/usr/libexec \
 614                 \( -name '*.a' -o -name '*.la' \) -print0 | xargs -0 rm -f
 615 ifneq ($(BR2_PACKAGE_GDB),y)
 616         rm -rf $(TARGET_DIR)/usr/share/gdb
 617 endif
 618 ifneq ($(BR2_PACKAGE_BASH),y)
 619         rm -rf $(TARGET_DIR)/usr/share/bash-completion
 620 endif
 621 ifneq ($(BR2_PACKAGE_ZSH),y)
 622         rm -rf $(TARGET_DIR)/usr/share/zsh
 623 endif
 624         rm -rf $(TARGET_DIR)/usr/man $(TARGET_DIR)/usr/share/man
 625         rm -rf $(TARGET_DIR)/usr/info $(TARGET_DIR)/usr/share/info
 626         rm -rf $(TARGET_DIR)/usr/doc $(TARGET_DIR)/usr/share/doc
 627         rm -rf $(TARGET_DIR)/usr/share/gtk-doc
 628         -rmdir $(TARGET_DIR)/usr/share 2>/dev/null
 629         $(STRIP_FIND_CMD) | xargs -0 $(STRIPCMD) 2>/dev/null || true
 630
 631 # See http://sourceware.org/gdb/wiki/FAQ, "GDB does not see any threads
 632 # besides the one in which crash occurred; or SIGTRAP kills my program when
 633 # I set a breakpoint"
 634 ifeq ($(BR2_TOOLCHAIN_HAS_THREADS),y)
 635         find $(TARGET_DIR)/lib -type f -name 'libpthread*.so*' | \
 636                 xargs -r $(STRIPCMD) $(STRIP_STRIP_DEBUG)
 637 endif
 638
 639 # Valgrind needs ld.so with enough information, so only strip
 640 # debugging symbols.
 641         find $(TARGET_DIR)/lib -type f -name 'ld-*.so*' | \
 642                 xargs -r $(STRIPCMD) $(STRIP_STRIP_DEBUG)
 643         test -f $(TARGET_DIR)/etc/ld.so.conf && \
 644                 { echo "ERROR: we shouldn't have a /etc/ld.so.conf file"; exit 1; } || true
 645         test -d $(TARGET_DIR)/etc/ld.so.conf.d && \
 646                 { echo "ERROR: we shouldn't have a /etc/ld.so.conf.d directory"; exit 1; } || true
 647         mkdir -p $(TARGET_DIR)/etc
 648         ( \
 649                 echo "NAME=Buildroot"; \
 650                 echo "VERSION=$(BR2_VERSION_FULL)"; \
 651                 echo "ID=buildroot"; \
 652                 echo "VERSION_ID=$(BR2_VERSION)"; \
 653                 echo "PRETTY_NAME=\"Buildroot $(BR2_VERSION)\"" \
 654         ) >  $(TARGET_DIR)/etc/os-release
 655
 656         @$(foreach d, $(call qstrip,$(BR2_ROOTFS_OVERLAY)), \
 657                 $(call MESSAGE,"Copying overlay $(d)"); \
 658                 rsync -a --ignore-times --keep-dirlinks $(RSYNC_VCS_EXCLUSIONS) \
 659                         --chmod=u=rwX,go=rX --exclude .empty --exclude '*~' \
 660                         $(d)/ $(TARGET_DIR)$(sep))
 661
 662         @$(foreach s, $(call qstrip,$(BR2_ROOTFS_POST_BUILD_SCRIPT)), \
 663                 $(call MESSAGE,"Executing post-build script $(s)"); \
 664                 $(EXTRA_ENV) $(s) $(TARGET_DIR) $(call qstrip,$(BR2_ROOTFS_POST_SCRIPT_ARGS))$(sep))
 665
 666 target-post-image: $(TARGETS_ROOTFS) target-finalize
 667         @$(foreach s, $(call qstrip,$(BR2_ROOTFS_POST_IMAGE_SCRIPT)), \
 668                 $(call MESSAGE,"Executing post-image script $(s)"); \
 669                 $(EXTRA_ENV) $(s) $(BINARIES_DIR) $(call qstrip,$(BR2_ROOTFS_POST_SCRIPT_ARGS))$(sep))
 670
 671 source: $(foreach p,$(PACKAGES),$(p)-all-source)
 672
 673 _external-deps: $(foreach p,$(PACKAGES),$(p)-all-external-deps)
 674 external-deps:
 675         @$(MAKE1) -Bs $(EXTRAMAKEARGS) _external-deps | sort -u
 676
 677 # check if download URLs are outdated
 678 source-check: $(foreach p,$(PACKAGES),$(p)-all-source-check)
 679
 680 legal-info-clean:
 681         @rm -fr $(LEGAL_INFO_DIR)
 682
 683 legal-info-prepare: $(LEGAL_INFO_DIR)
 684         @$(call MESSAGE,"Collecting legal info")
 685         @$(call legal-license-file,buildroot,COPYING,COPYING,HOST)
 686         @$(call legal-manifest,PACKAGE,VERSION,LICENSE,LICENSE FILES,SOURCE ARCHIVE,SOURCE SITE,TARGET)
 687         @$(call legal-manifest,PACKAGE,VERSION,LICENSE,LICENSE FILES,SOURCE ARCHIVE,SOURCE SITE,HOST)
 688         @$(call legal-manifest,buildroot,$(BR2_VERSION_FULL),GPLv2+,COPYING,not saved,not saved,HOST)
 689         @$(call legal-warning,the Buildroot source code has not been saved)
 690         @cp $(BR2_CONFIG) $(LEGAL_INFO_DIR)/buildroot.config
 691
 692 legal-info: dirs legal-info-clean legal-info-prepare $(foreach p,$(PACKAGES),$(p)-all-legal-info) \
 693                 $(REDIST_SOURCES_DIR_TARGET) $(REDIST_SOURCES_DIR_HOST)
 694         @cat support/legal-info/README.header >>$(LEGAL_REPORT)
 695         @if [ -r $(LEGAL_WARNINGS) ]; then \
 696                 cat support/legal-info/README.warnings-header \
 697                         $(LEGAL_WARNINGS) >>$(LEGAL_REPORT); \
 698                 cat $(LEGAL_WARNINGS); fi
 699         @rm -f $(LEGAL_WARNINGS)
 700         @(cd $(LEGAL_INFO_DIR); \
 701                 find * -type f -exec sha256sum {} + | LC_ALL=C sort -k2 \
 702                         >.legal-info.sha256; \
 703                 mv .legal-info.sha256 legal-info.sha256)
 704         @echo "Legal info produced in $(LEGAL_INFO_DIR)"
 705
 706 show-targets:
 707         @echo $(PACKAGES) $(TARGETS_ROOTFS)
 708
 709 graph-build: $(O)/build/build-time.log
 710         @install -d $(GRAPHS_DIR)
 711         $(foreach o,name build duration,./support/scripts/graph-build-time \
 712                                         --type=histogram --order=$(o) --input=$(<) \
 713                                         --output=$(GRAPHS_DIR)/build.hist-$(o).$(BR_GRAPH_OUT) \
 714                                         $(if $(BR2_GRAPH_ALT),--alternate-colors)$(sep))
 715         $(foreach t,packages steps,./support/scripts/graph-build-time \
 716                                    --type=pie-$(t) --input=$(<) \
 717                                    --output=$(GRAPHS_DIR)/build.pie-$(t).$(BR_GRAPH_OUT) \
 718                                    $(if $(BR2_GRAPH_ALT),--alternate-colors)$(sep))
 719
 720 graph-depends-requirements:
 721         @dot -? >/dev/null 2>&1 || \
 722                 { echo "ERROR: The 'dot' program from Graphviz is needed for graph-depends" >&2; exit 1; }
 723
 724 graph-depends: graph-depends-requirements
 725         @$(INSTALL) -d $(GRAPHS_DIR)
 726         @cd "$(CONFIG_DIR)"; \
 727         $(TOPDIR)/support/scripts/graph-depends $(BR2_GRAPH_DEPS_OPTS) \
 728                 -o $(GRAPHS_DIR)/$(@).dot
 729         dot $(BR2_GRAPH_DOT_OPTS) -T$(BR_GRAPH_OUT) \
 730                 -o $(GRAPHS_DIR)/$(@).$(BR_GRAPH_OUT) \
 731                 $(GRAPHS_DIR)/$(@).dot
 732
 733 graph-size:
 734         $(Q)mkdir -p $(GRAPHS_DIR)
 735         $(Q)$(TOPDIR)/support/scripts/size-stats --builddir $(BASE_DIR) \
 736                 --graph $(GRAPHS_DIR)/graph-size.$(BR_GRAPH_OUT) \
 737                 --file-size-csv $(GRAPHS_DIR)/file-size-stats.csv \
 738                 --package-size-csv $(GRAPHS_DIR)/package-size-stats.csv
 739
 740 check-dependencies:
 741         @cd "$(CONFIG_DIR)"; \
 742         $(TOPDIR)/support/scripts/graph-depends -C
 743
 744 else # ifeq ($(BR2_HAVE_DOT_CONFIG),y)
 745
 746 all: menuconfig
 747
 748 endif # ifeq ($(BR2_HAVE_DOT_CONFIG),y)
 749
 750 # configuration
 751 # ---------------------------------------------------------------------------
 752
 753 HOSTCFLAGS = $(CFLAGS_FOR_BUILD)
 754 export HOSTCFLAGS
 755
 756 .PHONY: prepare-kconfig
 757 prepare-kconfig: outputmakefile $(BUILD_DIR)/.br2-external.in
 758
 759 $(BUILD_DIR)/buildroot-config/%onf:
 760         mkdir -p $(@D)/lxdialog
 761         PKG_CONFIG_PATH="$(HOST_PKG_CONFIG_PATH)" $(MAKE) CC="$(HOSTCC_NOCCACHE)" HOSTCC="$(HOSTCC_NOCCACHE)" \
 762             obj=$(@D) -C $(CONFIG) -f Makefile.br $(@F)
 763
 764 DEFCONFIG = $(call qstrip,$(BR2_DEFCONFIG))
 765
 766 # We don't want to fully expand BR2_DEFCONFIG here, so Kconfig will
 767 # recognize that if it's still at its default $(CONFIG_DIR)/defconfig
 768 COMMON_CONFIG_ENV = \
 769         BR2_DEFCONFIG='$(call qstrip,$(value BR2_DEFCONFIG))' \
 770         KCONFIG_AUTOCONFIG=$(BUILD_DIR)/buildroot-config/auto.conf \
 771         KCONFIG_AUTOHEADER=$(BUILD_DIR)/buildroot-config/autoconf.h \
 772         KCONFIG_TRISTATE=$(BUILD_DIR)/buildroot-config/tristate.config \
 773         BR2_CONFIG=$(BR2_CONFIG) \
 774         BR2_EXTERNAL=$(BR2_EXTERNAL) \
 775         HOST_GCC_VERSION="$(HOSTCC_VERSION)" \
 776         BUILD_DIR=$(BUILD_DIR) \
 777         SKIP_LEGACY=
 778
 779 xconfig: $(BUILD_DIR)/buildroot-config/qconf prepare-kconfig
 780         @$(COMMON_CONFIG_ENV) $< $(CONFIG_CONFIG_IN)
 781
 782 gconfig: $(BUILD_DIR)/buildroot-config/gconf prepare-kconfig
 783         @$(COMMON_CONFIG_ENV) srctree=$(TOPDIR) $< $(CONFIG_CONFIG_IN)
 784
 785 menuconfig: $(BUILD_DIR)/buildroot-config/mconf prepare-kconfig
 786         @$(COMMON_CONFIG_ENV) $< $(CONFIG_CONFIG_IN)
 787
 788 nconfig: $(BUILD_DIR)/buildroot-config/nconf prepare-kconfig
 789         @$(COMMON_CONFIG_ENV) $< $(CONFIG_CONFIG_IN)
 790
 791 config: $(BUILD_DIR)/buildroot-config/conf prepare-kconfig
 792         @$(COMMON_CONFIG_ENV) $< $(CONFIG_CONFIG_IN)
 793
 794 # For the config targets that automatically select options, we pass
 795 # SKIP_LEGACY=y to disable the legacy options. However, in that case
 796 # no values are set for the legacy options so a subsequent oldconfig
 797 # will query them. Therefore, run an additional olddefconfig.
 798
 799 oldconfig: $(BUILD_DIR)/buildroot-config/conf prepare-kconfig
 800         @$(COMMON_CONFIG_ENV) $< --oldconfig $(CONFIG_CONFIG_IN)
 801
 802 randconfig: $(BUILD_DIR)/buildroot-config/conf prepare-kconfig
 803         @$(COMMON_CONFIG_ENV) SKIP_LEGACY=y $< --randconfig $(CONFIG_CONFIG_IN)
 804         @$(COMMON_CONFIG_ENV) $< --olddefconfig $(CONFIG_CONFIG_IN) >/dev/null
 805
 806 allyesconfig: $(BUILD_DIR)/buildroot-config/conf prepare-kconfig
 807         @$(COMMON_CONFIG_ENV) SKIP_LEGACY=y $< --allyesconfig $(CONFIG_CONFIG_IN)
 808         @$(COMMON_CONFIG_ENV) $< --olddefconfig $(CONFIG_CONFIG_IN) >/dev/null
 809
 810 allnoconfig: $(BUILD_DIR)/buildroot-config/conf prepare-kconfig
 811         @$(COMMON_CONFIG_ENV) SKIP_LEGACY=y $< --allnoconfig $(CONFIG_CONFIG_IN)
 812         @$(COMMON_CONFIG_ENV) $< --olddefconfig $(CONFIG_CONFIG_IN) >/dev/null
 813
 814 randpackageconfig: $(BUILD_DIR)/buildroot-config/conf prepare-kconfig
 815         @grep -v BR2_PACKAGE_ $(BR2_CONFIG) > $(CONFIG_DIR)/.config.nopkg
 816         @$(COMMON_CONFIG_ENV) SKIP_LEGACY=y \
 817                 KCONFIG_ALLCONFIG=$(CONFIG_DIR)/.config.nopkg \
 818                 $< --randconfig $(CONFIG_CONFIG_IN)
 819         @rm -f $(CONFIG_DIR)/.config.nopkg
 820         @$(COMMON_CONFIG_ENV) $< --olddefconfig $(CONFIG_CONFIG_IN) >/dev/null
 821
 822 allyespackageconfig: $(BUILD_DIR)/buildroot-config/conf prepare-kconfig
 823         @grep -v BR2_PACKAGE_ $(BR2_CONFIG) > $(CONFIG_DIR)/.config.nopkg
 824         @$(COMMON_CONFIG_ENV) SKIP_LEGACY=y \
 825                 KCONFIG_ALLCONFIG=$(CONFIG_DIR)/.config.nopkg \
 826                 $< --allyesconfig $(CONFIG_CONFIG_IN)
 827         @rm -f $(CONFIG_DIR)/.config.nopkg
 828         @$(COMMON_CONFIG_ENV) $< --olddefconfig $(CONFIG_CONFIG_IN) >/dev/null
 829
 830 allnopackageconfig: $(BUILD_DIR)/buildroot-config/conf prepare-kconfig
 831         @grep -v BR2_PACKAGE_ $(BR2_CONFIG) > $(CONFIG_DIR)/.config.nopkg
 832         @$(COMMON_CONFIG_ENV) SKIP_LEGACY=y \
 833                 KCONFIG_ALLCONFIG=$(CONFIG_DIR)/.config.nopkg \
 834                 $< --allnoconfig $(CONFIG_CONFIG_IN)
 835         @rm -f $(CONFIG_DIR)/.config.nopkg
 836         @$(COMMON_CONFIG_ENV) $< --olddefconfig $(CONFIG_CONFIG_IN) >/dev/null
 837
 838 silentoldconfig: $(BUILD_DIR)/buildroot-config/conf prepare-kconfig
 839         $(COMMON_CONFIG_ENV) $< --silentoldconfig $(CONFIG_CONFIG_IN)
 840
 841 olddefconfig: $(BUILD_DIR)/buildroot-config/conf prepare-kconfig
 842         $(COMMON_CONFIG_ENV) $< --olddefconfig $(CONFIG_CONFIG_IN)
 843
 844 defconfig: $(BUILD_DIR)/buildroot-config/conf prepare-kconfig
 845         @$(COMMON_CONFIG_ENV) $< --defconfig$(if $(DEFCONFIG),=$(DEFCONFIG)) $(CONFIG_CONFIG_IN)
 846
 847 define percent_defconfig
 848 # Override the BR2_DEFCONFIG from COMMON_CONFIG_ENV with the new defconfig
 849 %_defconfig: $(BUILD_DIR)/buildroot-config/conf $(1)/configs/%_defconfig prepare-kconfig
 850         @$$(COMMON_CONFIG_ENV) BR2_DEFCONFIG=$(1)/configs/$$@ \
 851                 $$< --defconfig=$(1)/configs/$$@ $$(CONFIG_CONFIG_IN)
 852 endef
 853 $(eval $(foreach d,$(TOPDIR) $(BR2_EXTERNAL),$(call percent_defconfig,$(d))$(sep)))
 854
 855 savedefconfig: $(BUILD_DIR)/buildroot-config/conf prepare-kconfig
 856         @$(COMMON_CONFIG_ENV) $< \
 857                 --savedefconfig=$(if $(DEFCONFIG),$(DEFCONFIG),$(CONFIG_DIR)/defconfig) \
 858                 $(CONFIG_CONFIG_IN)
 859         @$(SED) '/BR2_DEFCONFIG=/d' $(if $(DEFCONFIG),$(DEFCONFIG),$(CONFIG_DIR)/defconfig)
 860
 861 .PHONY: defconfig savedefconfig
 862
 863 ################################################################################
 864 #
 865 # Cleanup and misc junk
 866 #
 867 ################################################################################
 868
 869 # outputmakefile generates a Makefile in the output directory, if using a
 870 # separate output directory. This allows convenient use of make in the
 871 # output directory.
 872 outputmakefile:
 873 ifeq ($(NEED_WRAPPER),y)
 874         $(Q)$(TOPDIR)/support/scripts/mkmakefile $(TOPDIR) $(O)
 875 endif
 876
 877 # Even though the target is a real file, we mark it as PHONY as we
 878 # want it to be re-generated each time make is invoked, in case the
 879 # value of BR2_EXTERNAL is changed.
 880 .PHONY: $(BUILD_DIR)/.br2-external.in
 881 $(BUILD_DIR)/.br2-external.in: $(BUILD_DIR)
 882         @touch $@
 883
 884 # printvars prints all the variables currently defined in our
 885 # Makefiles. Alternatively, if a non-empty VARS variable is passed,
 886 # only the variables matching the make pattern passed in VARS are
 887 # displayed.
 888 printvars:
 889         @$(foreach V, \
 890                 $(sort $(if $(VARS),$(filter $(VARS),$(.VARIABLES)),$(.VARIABLES))), \
 891                 $(if $(filter-out environment% default automatic, \
 892                                 $(origin $V)), \
 893                 $(info $V=$($V) ($(value $V)))))
 894
 895 clean:
 896         rm -rf $(TARGET_DIR) $(BINARIES_DIR) $(HOST_DIR) \
 897                 $(BUILD_DIR) $(BASE_DIR)/staging \
 898                 $(LEGAL_INFO_DIR) $(GRAPHS_DIR)
 899
 900 distclean: clean
 901 ifeq ($(O),output)
 902         rm -rf $(O)
 903 endif
 904         rm -rf $(TOPDIR)/dl $(BR2_CONFIG) $(CONFIG_DIR)/.config.old $(CONFIG_DIR)/..config.tmp \
 905                 $(CONFIG_DIR)/.auto.deps $(BR2_EXTERNAL_FILE)
 906
 907 help:
 908         @echo 'Cleaning:'
 909         @echo '  clean                  - delete all files created by build'
 910         @echo '  distclean              - delete all non-source files (including .config)'
 911         @echo
 912         @echo 'Build:'
 913         @echo '  all                    - make world'
 914         @echo '  toolchain              - build toolchain'
 915         @echo
 916         @echo 'Configuration:'
 917         @echo '  menuconfig             - interactive curses-based configurator'
 918         @echo '  nconfig                - interactive ncurses-based configurator'
 919         @echo '  xconfig                - interactive Qt-based configurator'
 920         @echo '  gconfig                - interactive GTK-based configurator'
 921         @echo '  oldconfig              - resolve any unresolved symbols in .config'
 922         @echo '  silentoldconfig        - Same as oldconfig, but quietly, additionally update deps'
 923         @echo '  olddefconfig           - Same as silentoldconfig but sets new symbols to their default value'
 924         @echo '  randconfig             - New config with random answer to all options'
 925         @echo '  defconfig              - New config with default answer to all options'
 926         @echo '                             BR2_DEFCONFIG, if set, is used as input'
 927         @echo '  savedefconfig          - Save current config to BR2_DEFCONFIG (minimal config)'
 928         @echo '  allyesconfig           - New config where all options are accepted with yes'
 929         @echo '  allnoconfig            - New config where all options are answered with no'
 930         @echo '  randpackageconfig      - New config with random answer to package options'
 931         @echo '  allyespackageconfig    - New config where pkg options are accepted with yes'
 932         @echo '  allnopackageconfig     - New config where package options are answered with no'
 933         @echo
 934         @echo 'Package-specific:'
 935         @echo '  <pkg>                  - Build and install <pkg> and all its dependencies'
 936         @echo '  <pkg>-source           - Only download the source files for <pkg>'
 937         @echo '  <pkg>-extract          - Extract <pkg> sources'
 938         @echo '  <pkg>-patch            - Apply patches to <pkg>'
 939         @echo '  <pkg>-depends          - Build <pkg>'\''s dependencies'
 940         @echo '  <pkg>-configure        - Build <pkg> up to the configure step'
 941         @echo '  <pkg>-build            - Build <pkg> up to the build step'
 942         @echo '  <pkg>-graph-depends    - Generate a graph of <pkg>'\''s dependencies'
 943         @echo '  <pkg>-dirclean         - Remove <pkg> build directory'
 944         @echo '  <pkg>-reconfigure      - Restart the build from the configure step'
 945         @echo '  <pkg>-rebuild          - Restart the build from the build step'
 946         $(foreach p,$(HELP_PACKAGES), \
 947                 @echo $(sep) \
 948                 @echo '$($(p)_NAME):' $(sep) \
 949                 $($(p)_HELP_CMDS)$(sep))
 950         @echo
 951         @echo 'Documentation:'
 952         @echo '  manual                 - build manual in all formats'
 953         @echo '  manual-html            - build manual in HTML'
 954         @echo '  manual-split-html      - build manual in split HTML'
 955         @echo '  manual-pdf             - build manual in PDF'
 956         @echo '  manual-text            - build manual in text'
 957         @echo '  manual-epub            - build manual in ePub'
 958         @echo '  graph-build            - generate graphs of the build times'
 959         @echo '  graph-depends          - generate graph of the dependency tree'
 960         @echo '  graph-size             - generate stats of the filesystem size'
 961         @echo '  list-defconfigs        - list all defconfigs (pre-configured minimal systems)'
 962         @echo
 963         @echo 'Miscellaneous:'
 964         @echo '  source                 - download all sources needed for offline-build'
 965         @echo '  source-check           - check selected packages for valid download URLs'
 966         @echo '  external-deps          - list external packages used'
 967         @echo '  legal-info             - generate info about license compliance'
 968         @echo
 969         @echo '  make V=0|1             - 0 => quiet build (default), 1 => verbose build'
 970         @echo '  make O=dir             - Locate all output files in "dir", including .config'
 971         @echo
 972         @echo 'For further details, see README, generate the Buildroot manual, or consult'
 973         @echo 'it on-line at http://buildroot.org/docs.html'
 974         @echo
 975
 976 list-defconfigs:
 977         @echo 'Built-in configs:'
 978         @$(foreach b, $(sort $(notdir $(wildcard $(TOPDIR)/configs/*_defconfig))), \
 979           printf "  %-35s - Build for %s\\n" $(b) $(b:_defconfig=);)
 980 ifneq ($(wildcard $(BR2_EXTERNAL)/configs/*_defconfig),)
 981         @echo
 982         @echo 'User-provided configs:'
 983         @$(foreach b, $(sort $(notdir $(wildcard $(BR2_EXTERNAL)/configs/*_defconfig))), \
 984           printf "  %-35s - Build for %s\\n" $(b) $(b:_defconfig=);)
 985 endif
 986         @echo
 987
 988 release: OUT = buildroot-$(BR2_VERSION)
 989
 990 # Create release tarballs. We need to fiddle a bit to add the generated
 991 # documentation to the git output
 992 release:
 993         git archive --format=tar --prefix=$(OUT)/ HEAD > $(OUT).tar
 994         $(MAKE) O=$(OUT) manual-html manual-text manual-pdf
 995         $(MAKE) O=$(OUT) manual-clean
 996         tar rf $(OUT).tar $(OUT)
 997         gzip -9 -c < $(OUT).tar > $(OUT).tar.gz
 998         bzip2 -9 -c < $(OUT).tar > $(OUT).tar.bz2
 999         rm -rf $(OUT) $(OUT).tar
1000
1001 print-version:
1002         @echo $(BR2_VERSION_FULL)
1003
1004 include docs/manual/manual.mk
1005 -include $(BR2_EXTERNAL)/docs/*/*.mk
1006
1007 .PHONY: $(noconfig_targets)
1008
1009 endif #umask