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) 2014-2015 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 # Trick for always running with a fixed umask
  28 UMASK = 0022
  29 ifneq ($(shell umask),$(UMASK))
  30 .PHONY: _all $(MAKECMDGOALS)
  31
  32 $(MAKECMDGOALS): _all
  33         @:
  34
  35 _all:
  36         @umask $(UMASK) && $(MAKE) --no-print-directory $(MAKECMDGOALS)
  37
  38 else # umask
  39
  40 # This is our default rule, so must come first
  41 all:
  42
  43 # Set and export the version string
  44 export BR2_VERSION := 2016.02-git
  45
  46 # Save running make version since it's clobbered by the make package
  47 RUNNING_MAKE_VERSION := $(MAKE_VERSION)
  48
  49 # Check for minimal make version (note: this check will break at make 10.x)
  50 MIN_MAKE_VERSION = 3.81
  51 ifneq ($(firstword $(sort $(RUNNING_MAKE_VERSION) $(MIN_MAKE_VERSION))),$(MIN_MAKE_VERSION))
  52 $(error You have make '$(RUNNING_MAKE_VERSION)' installed. GNU make >= $(MIN_MAKE_VERSION) is required)
  53 endif
  54
  55 export HOSTARCH := $(shell uname -m | \
  56         sed -e s/i.86/x86/ \
  57             -e s/sun4u/sparc64/ \
  58             -e s/arm.*/arm/ \
  59             -e s/sa110/arm/ \
  60             -e s/ppc64/powerpc64/ \
  61             -e s/ppc/powerpc/ \
  62             -e s/macppc/powerpc/\
  63             -e s/sh.*/sh/)
  64
  65 # Parallel execution of this Makefile is disabled because it changes
  66 # the packages building order, that can be a problem for two reasons:
  67 # - If a package has an unspecified optional dependency and that
  68 #   dependency is present when the package is built, it is used,
  69 #   otherwise it isn't (but compilation happily proceeds) so the end
  70 #   result will differ if the order is swapped due to parallel
  71 #   building.
  72 # - Also changing the building order can be a problem if two packages
  73 #   manipulate the same file in the target directory.
  74 #
  75 # Taking into account the above considerations, if you still want to execute
  76 # this top-level Makefile in parallel comment the ".NOTPARALLEL" line and
  77 # use the -j<jobs> option when building, e.g:
  78 #      make -j$((`getconf _NPROCESSORS_ONLN`+1))
  79 .NOTPARALLEL:
  80
  81 # absolute path
  82 TOPDIR := $(shell pwd)
  83 CONFIG_CONFIG_IN = Config.in
  84 CONFIG = support/kconfig
  85 DATE := $(shell date +%Y%m%d)
  86
  87 # Compute the full local version string so packages can use it as-is
  88 # Need to export it, so it can be got from environment in children (eg. mconf)
  89 export BR2_VERSION_FULL := $(BR2_VERSION)$(shell $(TOPDIR)/support/scripts/setlocalversion)
  90
  91 noconfig_targets := menuconfig nconfig gconfig xconfig config oldconfig randconfig \
  92         defconfig %_defconfig allyesconfig allnoconfig silentoldconfig release \
  93         randpackageconfig allyespackageconfig allnopackageconfig \
  94         print-version olddefconfig
  95
  96 # Some global targets do not trigger a build, but are used to collect
  97 # metadata, or do various checks. When such targets are triggered,
  98 # some packages should not do their configuration sanity
  99 # checks. Provide them a BR_BUILDING variable set to 'y' when we're
 100 # actually building and they should do their sanity checks.
 101 #
 102 # We're building in two situations: when MAKECMDGOALS is empty
 103 # (default target is to build), or when MAKECMDGOALS contains
 104 # something else than one of the nobuild_targets.
 105 nobuild_targets := source source-check \
 106         legal-info external-deps _external-deps \
 107         clean distclean
 108 ifeq ($(MAKECMDGOALS),)
 109 BR_BUILDING = y
 110 else ifneq ($(filter-out $(nobuild_targets),$(MAKECMDGOALS)),)
 111 BR_BUILDING = y
 112 endif
 113
 114 # Strip quotes and then whitespaces
 115 qstrip = $(strip $(subst ",,$(1)))
 116 #"))
 117
 118 # Variables for use in Make constructs
 119 comma := ,
 120 empty :=
 121 space := $(empty) $(empty)
 122
 123 ifneq ("$(origin O)", "command line")
 124 O := output
 125 CONFIG_DIR := $(TOPDIR)
 126 NEED_WRAPPER =
 127 else
 128 # other packages might also support Linux-style out of tree builds
 129 # with the O=<dir> syntax (E.G. BusyBox does). As make automatically
 130 # forwards command line variable definitions those packages get very
 131 # confused. Fix this by telling make to not do so
 132 MAKEOVERRIDES =
 133 # strangely enough O is still passed to submakes with MAKEOVERRIDES
 134 # (with make 3.81 atleast), the only thing that changes is the output
 135 # of the origin function (command line -> environment).
 136 # Unfortunately some packages don't look at origin (E.G. uClibc 0.9.31+)
 137 # To really make O go away, we have to override it.
 138 override O := $(O)
 139 CONFIG_DIR := $(O)
 140 # we need to pass O= everywhere we call back into the toplevel makefile
 141 EXTRAMAKEARGS = O=$(O)
 142 NEED_WRAPPER = y
 143 endif
 144
 145 # bash prints the name of the directory on 'cd <dir>' if CDPATH is
 146 # set, so unset it here to not cause problems. Notice that the export
 147 # line doesn't affect the environment of $(shell ..) calls, so
 148 # explictly throw away any output from 'cd' here.
 149 export CDPATH :=
 150 BASE_DIR := $(shell mkdir -p $(O) && cd $(O) >/dev/null && pwd)
 151 $(if $(BASE_DIR),, $(error output directory "$(O)" does not exist))
 152
 153
 154 # Handling of BR2_EXTERNAL.
 155 #
 156 # The value of BR2_EXTERNAL is stored in .br-external in the output directory.
 157 # On subsequent invocations of make, it is read in. It can still be overridden
 158 # on the command line, therefore the file is re-created every time make is run.
 159 #
 160 # When BR2_EXTERNAL is set to an empty value (e.g. explicitly in command
 161 # line), the .br-external file is removed and we point to
 162 # support/dummy-external. This makes sure we can unconditionally include the
 163 # Config.in and external.mk from the BR2_EXTERNAL directory. In this case,
 164 # override is necessary so the user can clear BR2_EXTERNAL from the command
 165 # line, but the dummy path is still used internally.
 166
 167 BR2_EXTERNAL_FILE = $(BASE_DIR)/.br-external
 168 -include $(BR2_EXTERNAL_FILE)
 169 ifeq ($(BR2_EXTERNAL),)
 170   override BR2_EXTERNAL = support/dummy-external
 171   $(shell rm -f $(BR2_EXTERNAL_FILE))
 172 else
 173   _BR2_EXTERNAL = $(shell cd $(BR2_EXTERNAL) >/dev/null 2>&1 && pwd)
 174   ifeq ($(_BR2_EXTERNAL),)
 175     $(error BR2_EXTERNAL='$(BR2_EXTERNAL)' does not exist, relative to $(TOPDIR))
 176   endif
 177   override BR2_EXTERNAL := $(_BR2_EXTERNAL)
 178   $(shell echo BR2_EXTERNAL ?= $(BR2_EXTERNAL) > $(BR2_EXTERNAL_FILE))
 179 endif
 180
 181 # To make sure that the environment variable overrides the .config option,
 182 # set this before including .config.
 183 ifneq ($(BR2_DL_DIR),)
 184 DL_DIR := $(BR2_DL_DIR)
 185 endif
 186 ifneq ($(BR2_CCACHE_DIR),)
 187 BR_CACHE_DIR := $(BR2_CCACHE_DIR)
 188 endif
 189
 190 # Need that early, before we scan packages
 191 # Avoids doing the $(or...) everytime
 192 BR_GRAPH_OUT := $(or $(BR2_GRAPH_OUT),pdf)
 193
 194 BUILD_DIR := $(BASE_DIR)/build
 195 BINARIES_DIR := $(BASE_DIR)/images
 196 TARGET_DIR := $(BASE_DIR)/target
 197 # initial definition so that 'make clean' works for most users, even without
 198 # .config. HOST_DIR will be overwritten later when .config is included.
 199 HOST_DIR := $(BASE_DIR)/host
 200 GRAPHS_DIR := $(BASE_DIR)/graphs
 201
 202 LEGAL_INFO_DIR = $(BASE_DIR)/legal-info
 203 REDIST_SOURCES_DIR_TARGET = $(LEGAL_INFO_DIR)/sources
 204 REDIST_SOURCES_DIR_HOST = $(LEGAL_INFO_DIR)/host-sources
 205 LICENSE_FILES_DIR_TARGET = $(LEGAL_INFO_DIR)/licenses
 206 LICENSE_FILES_DIR_HOST = $(LEGAL_INFO_DIR)/host-licenses
 207 LEGAL_MANIFEST_CSV_TARGET = $(LEGAL_INFO_DIR)/manifest.csv
 208 LEGAL_MANIFEST_CSV_HOST = $(LEGAL_INFO_DIR)/host-manifest.csv
 209 LEGAL_LICENSES_TXT_TARGET = $(LEGAL_INFO_DIR)/licenses.txt
 210 LEGAL_LICENSES_TXT_HOST = $(LEGAL_INFO_DIR)/host-licenses.txt
 211 LEGAL_WARNINGS = $(LEGAL_INFO_DIR)/.warnings
 212 LEGAL_REPORT = $(LEGAL_INFO_DIR)/README
 213
 214 BR2_CONFIG = $(CONFIG_DIR)/.config
 215
 216 # Pull in the user's configuration file
 217 ifeq ($(filter $(noconfig_targets),$(MAKECMDGOALS)),)
 218 -include $(BR2_CONFIG)
 219 endif
 220
 221 # To put more focus on warnings, be less verbose as default
 222 # Use 'make V=1' to see the full commands
 223 ifeq ("$(origin V)", "command line")
 224   KBUILD_VERBOSE = $(V)
 225 endif
 226 ifndef KBUILD_VERBOSE
 227   KBUILD_VERBOSE = 0
 228 endif
 229
 230 ifeq ($(KBUILD_VERBOSE),1)
 231   Q =
 232 ifndef VERBOSE
 233   VERBOSE = 1
 234 endif
 235 export VERBOSE
 236 else
 237   Q = @
 238 endif
 239
 240 # we want bash as shell
 241 SHELL := $(shell if [ -x "$$BASH" ]; then echo $$BASH; \
 242          else if [ -x /bin/bash ]; then echo /bin/bash; \
 243          else echo sh; fi; fi)
 244
 245 # kconfig uses CONFIG_SHELL
 246 CONFIG_SHELL := $(SHELL)
 247
 248 export SHELL CONFIG_SHELL Q KBUILD_VERBOSE
 249
 250 ifndef HOSTAR
 251 HOSTAR := ar
 252 endif
 253 ifndef HOSTAS
 254 HOSTAS := as
 255 endif
 256 ifndef HOSTCC
 257 HOSTCC := gcc
 258 HOSTCC := $(shell which $(HOSTCC) || type -p $(HOSTCC) || echo gcc)
 259 endif
 260 HOSTCC_NOCCACHE := $(HOSTCC)
 261 ifndef HOSTCXX
 262 HOSTCXX := g++
 263 HOSTCXX := $(shell which $(HOSTCXX) || type -p $(HOSTCXX) || echo g++)
 264 endif
 265 HOSTCXX_NOCCACHE := $(HOSTCXX)
 266 ifndef HOSTCPP
 267 HOSTCPP := cpp
 268 endif
 269 ifndef HOSTLD
 270 HOSTLD := ld
 271 endif
 272 ifndef HOSTLN
 273 HOSTLN := ln
 274 endif
 275 ifndef HOSTNM
 276 HOSTNM := nm
 277 endif
 278 ifndef HOSTOBJCOPY
 279 HOSTOBJCOPY := objcopy
 280 endif
 281 ifndef HOSTRANLIB
 282 HOSTRANLIB := ranlib
 283 endif
 284 HOSTAR := $(shell which $(HOSTAR) || type -p $(HOSTAR) || echo ar)
 285 HOSTAS := $(shell which $(HOSTAS) || type -p $(HOSTAS) || echo as)
 286 HOSTCPP := $(shell which $(HOSTCPP) || type -p $(HOSTCPP) || echo cpp)
 287 HOSTLD := $(shell which $(HOSTLD) || type -p $(HOSTLD) || echo ld)
 288 HOSTLN := $(shell which $(HOSTLN) || type -p $(HOSTLN) || echo ln)
 289 HOSTNM := $(shell which $(HOSTNM) || type -p $(HOSTNM) || echo nm)
 290 HOSTOBJCOPY := $(shell which $(HOSTOBJCOPY) || type -p $(HOSTOBJCOPY) || echo objcopy)
 291 HOSTRANLIB := $(shell which $(HOSTRANLIB) || type -p $(HOSTRANLIB) || echo ranlib)
 292
 293 export HOSTAR HOSTAS HOSTCC HOSTCXX HOSTLD
 294 export HOSTCC_NOCCACHE HOSTCXX_NOCCACHE
 295
 296 # Make sure pkg-config doesn't look outside the buildroot tree
 297 HOST_PKG_CONFIG_PATH := $(PKG_CONFIG_PATH)
 298 unexport PKG_CONFIG_PATH
 299 unexport PKG_CONFIG_SYSROOT_DIR
 300 unexport PKG_CONFIG_LIBDIR
 301
 302 # Having DESTDIR set in the environment confuses the installation
 303 # steps of some packages.
 304 unexport DESTDIR
 305
 306 # Causes breakage with packages that needs host-ruby
 307 unexport RUBYOPT
 308
 309 include package/pkg-utils.mk
 310 include package/doc-asciidoc.mk
 311
 312 ifeq ($(BR2_HAVE_DOT_CONFIG),y)
 313
 314 ################################################################################
 315 #
 316 # Hide troublesome environment variables from sub processes
 317 #
 318 ################################################################################
 319 unexport CROSS_COMPILE
 320 unexport ARCH
 321 unexport CC
 322 unexport CXX
 323 unexport CPP
 324 unexport CFLAGS
 325 unexport CXXFLAGS
 326 unexport GREP_OPTIONS
 327 unexport TAR_OPTIONS
 328 unexport CONFIG_SITE
 329 unexport QMAKESPEC
 330 unexport TERMINFO
 331 unexport MACHINE
 332 unexport O
 333
 334 GNU_HOST_NAME := $(shell support/gnuconfig/config.guess)
 335
 336 PACKAGES :=
 337 PACKAGES_ALL :=
 338
 339 # silent mode requested?
 340 QUIET := $(if $(findstring s,$(filter-out --%,$(MAKEFLAGS))),-q)
 341
 342 # Strip off the annoying quoting
 343 ARCH := $(call qstrip,$(BR2_ARCH))
 344
 345 KERNEL_ARCH := $(shell echo "$(ARCH)" | sed -e "s/-.*//" \
 346         -e s/i.86/i386/ -e s/sun4u/sparc64/ \
 347         -e s/arcle/arc/ \
 348         -e s/arceb/arc/ \
 349         -e s/arm.*/arm/ -e s/sa110/arm/ \
 350         -e s/aarch64.*/arm64/ \
 351         -e s/bfin/blackfin/ \
 352         -e s/parisc64/parisc/ \
 353         -e s/powerpc64.*/powerpc/ \
 354         -e s/ppc.*/powerpc/ -e s/mips.*/mips/ \
 355         -e s/sh.*/sh/ \
 356         -e s/microblazeel/microblaze/)
 357
 358 ZCAT := $(call qstrip,$(BR2_ZCAT))
 359 BZCAT := $(call qstrip,$(BR2_BZCAT))
 360 XZCAT := $(call qstrip,$(BR2_XZCAT))
 361 TAR_OPTIONS = $(call qstrip,$(BR2_TAR_OPTIONS)) -xf
 362
 363 # packages compiled for the host go here
 364 HOST_DIR := $(call qstrip,$(BR2_HOST_DIR))
 365
 366 # Quotes are needed for spaces and all in the original PATH content.
 367 BR_PATH = "$(HOST_DIR)/bin:$(HOST_DIR)/sbin:$(HOST_DIR)/usr/bin:$(HOST_DIR)/usr/sbin:$(PATH)"
 368
 369 # Location of a file giving a big fat warning that output/target
 370 # should not be used as the root filesystem.
 371 TARGET_DIR_WARNING_FILE = $(TARGET_DIR)/THIS_IS_NOT_YOUR_ROOT_FILESYSTEM
 372
 373 ifeq ($(BR2_CCACHE),y)
 374 CCACHE := $(HOST_DIR)/usr/bin/ccache
 375 BR_CACHE_DIR ?= $(call qstrip,$(BR2_CCACHE_DIR))
 376 export BR_CACHE_DIR
 377 HOSTCC := $(CCACHE) $(HOSTCC)
 378 HOSTCXX := $(CCACHE) $(HOSTCXX)
 379 else
 380 export BR_NO_CCACHE
 381 endif
 382
 383 # Scripts in support/ or post-build scripts may need to reference
 384 # these locations, so export them so it is easier to use
 385 export BR2_CONFIG
 386 export TARGET_DIR
 387 export STAGING_DIR
 388 export HOST_DIR
 389 export BINARIES_DIR
 390 export BASE_DIR
 391
 392 ################################################################################
 393 #
 394 # You should probably leave this stuff alone unless you know
 395 # what you are doing.
 396 #
 397 ################################################################################
 398
 399 all: world
 400
 401 # Include legacy before the other things, because package .mk files
 402 # may rely on it.
 403 ifneq ($(BR2_DEPRECATED),y)
 404 include Makefile.legacy
 405 endif
 406
 407 include package/Makefile.in
 408 include support/dependencies/dependencies.mk
 409
 410 include toolchain/*.mk
 411 include toolchain/*/*.mk
 412
 413 # Include the package override file if one has been provided in the
 414 # configuration.
 415 PACKAGE_OVERRIDE_FILE = $(call qstrip,$(BR2_PACKAGE_OVERRIDE_FILE))
 416 ifneq ($(PACKAGE_OVERRIDE_FILE),)
 417 -include $(PACKAGE_OVERRIDE_FILE)
 418 endif
 419
 420 include $(sort $(wildcard package/*/*.mk))
 421
 422 include boot/common.mk
 423 include linux/linux.mk
 424 include fs/common.mk
 425
 426 include $(BR2_EXTERNAL)/external.mk
 427
 428 dirs: $(BUILD_DIR) $(STAGING_DIR) $(TARGET_DIR) \
 429         $(HOST_DIR) $(BINARIES_DIR)
 430
 431 $(BUILD_DIR)/buildroot-config/auto.conf: $(BR2_CONFIG)
 432         $(MAKE1) $(EXTRAMAKEARGS) HOSTCC="$(HOSTCC_NOCCACHE)" HOSTCXX="$(HOSTCXX_NOCCACHE)" silentoldconfig
 433
 434 prepare: $(BUILD_DIR)/buildroot-config/auto.conf
 435
 436 world: target-post-image
 437
 438 .PHONY: all world toolchain dirs clean distclean source outputmakefile \
 439         legal-info legal-info-prepare legal-info-clean printvars help \
 440         list-defconfigs target-finalize target-post-image source-check
 441
 442 ################################################################################
 443 #
 444 # staging and target directories do NOT list these as
 445 # dependencies anywhere else
 446 #
 447 ################################################################################
 448 $(BUILD_DIR) $(TARGET_DIR) $(HOST_DIR) $(BINARIES_DIR) $(LEGAL_INFO_DIR) $(REDIST_SOURCES_DIR_TARGET) $(REDIST_SOURCES_DIR_HOST):
 449         @mkdir -p $@
 450
 451 # We make a symlink lib32->lib or lib64->lib as appropriate
 452 # MIPS64/n32 requires lib32 even though it's a 64-bit arch.
 453 ifeq ($(BR2_ARCH_IS_64)$(BR2_MIPS_NABI32),y)
 454 LIB_SYMLINK = lib64
 455 else
 456 LIB_SYMLINK = lib32
 457 endif
 458
 459 # Populating the staging with the base directories is handled by the skeleton package
 460 $(STAGING_DIR):
 461         @mkdir -p $(STAGING_DIR)
 462         @ln -snf $(STAGING_DIR) $(BASE_DIR)/staging
 463
 464 RSYNC_VCS_EXCLUSIONS = \
 465         --exclude .svn --exclude .git --exclude .hg --exclude .bzr \
 466         --exclude CVS
 467
 468 STRIP_FIND_CMD = find $(TARGET_DIR)
 469 ifneq (,$(call qstrip,$(BR2_STRIP_EXCLUDE_DIRS)))
 470 STRIP_FIND_CMD += \( $(call finddirclauses,$(TARGET_DIR),$(call qstrip,$(BR2_STRIP_EXCLUDE_DIRS))) \) -prune -o
 471 endif
 472 STRIP_FIND_CMD += -type f \( -perm /111 -o -name '*.so*' \)
 473 # file exclusions:
 474 # - libpthread.so: a non-stripped libpthread shared library is needed for
 475 #   proper debugging of pthread programs using gdb.
 476 # - kernel modules (*.ko): do not function properly when stripped like normal
 477 #   applications and libraries. Normally kernel modules are already excluded
 478 #   by the executable permission check above, so the explicit exclusion is only
 479 #   done for kernel modules with incorrect permissions.
 480 STRIP_FIND_CMD += -not \( $(call findfileclauses,libpthread*.so* *.ko $(call qstrip,$(BR2_STRIP_EXCLUDE_FILES))) \) -print0
 481
 482 ifeq ($(BR2_ECLIPSE_REGISTER),y)
 483 define TOOLCHAIN_ECLIPSE_REGISTER
 484         ./support/scripts/eclipse-register-toolchain `readlink -f $(O)` \
 485                 $(notdir $(TARGET_CROSS)) $(BR2_ARCH)
 486 endef
 487 TARGET_FINALIZE_HOOKS += TOOLCHAIN_ECLIPSE_REGISTER
 488 endif
 489
 490 # Generate locale data. Basically, we call the localedef program
 491 # (built by the host-localedef package) for each locale. The input
 492 # data comes preferably from the toolchain, or if the toolchain does
 493 # not have them (Linaro toolchains), we use the ones available on the
 494 # host machine.
 495 ifeq ($(BR2_TOOLCHAIN_USES_GLIBC),y)
 496 GLIBC_GENERATE_LOCALES = $(call qstrip,$(BR2_GENERATE_LOCALE))
 497 ifneq ($(GLIBC_GENERATE_LOCALES),)
 498 PACKAGES += host-localedef
 499
 500 define GENERATE_GLIBC_LOCALES
 501         $(Q)mkdir -p $(TARGET_DIR)/usr/lib/locale/
 502         $(Q)for locale in $(GLIBC_GENERATE_LOCALES) ; do \
 503                 inputfile=`echo $${locale} | cut -f1 -d'.'` ; \
 504                 charmap=`echo $${locale} | cut -f2 -d'.' -s` ; \
 505                 if test -z "$${charmap}" ; then \
 506                         charmap="UTF-8" ; \
 507                 fi ; \
 508                 echo "Generating locale $${inputfile}.$${charmap}" ; \
 509                 I18NPATH=$(STAGING_DIR)/usr/share/i18n:/usr/share/i18n \
 510                 $(HOST_DIR)/usr/bin/localedef \
 511                         --prefix=$(TARGET_DIR) \
 512                         --$(call LOWERCASE,$(BR2_ENDIAN))-endian \
 513                         -i $${inputfile} -f $${charmap} \
 514                         $${locale} ; \
 515         done
 516 endef
 517 TARGET_FINALIZE_HOOKS += GENERATE_GLIBC_LOCALES
 518 endif
 519 endif
 520
 521 ifeq ($(BR2_ENABLE_LOCALE_PURGE),y)
 522 LOCALE_WHITELIST = $(BUILD_DIR)/locales.nopurge
 523 LOCALE_NOPURGE = $(call qstrip,$(BR2_ENABLE_LOCALE_WHITELIST))
 524
 525 # This piece of junk does the following:
 526 # First collect the whitelist in a file.
 527 # Then go over all the locale dirs and for each subdir, check if it exists
 528 # in the whitelist file. If it doesn't, kill it.
 529 # Finally, specifically for X11, regenerate locale.dir from the whitelist.
 530 define PURGE_LOCALES
 531         rm -f $(LOCALE_WHITELIST)
 532         for i in $(LOCALE_NOPURGE) locale-archive; do echo $$i >> $(LOCALE_WHITELIST); done
 533
 534         for dir in $(wildcard $(addprefix $(TARGET_DIR),/usr/share/locale /usr/share/X11/locale /usr/lib/locale)); \
 535         do \
 536                 for langdir in $$dir/*; \
 537                 do \
 538                         grep -qx $${langdir##*/} $(LOCALE_WHITELIST) || rm -rf $$langdir; \
 539                 done; \
 540         done
 541         if [ -d $(TARGET_DIR)/usr/share/X11/locale ]; \
 542         then \
 543                 for lang in $(LOCALE_NOPURGE); \
 544                 do \
 545                         if [ -f $(TARGET_DIR)/usr/share/X11/locale/$$lang/XLC_LOCALE ]; \
 546                         then \
 547                                 echo "$$lang/XLC_LOCALE: $$lang"; \
 548                         fi \
 549                 done > $(TARGET_DIR)/usr/share/X11/locale/locale.dir; \
 550         fi
 551 endef
 552 TARGET_FINALIZE_HOOKS += PURGE_LOCALES
 553 endif
 554
 555 $(TARGETS_ROOTFS): target-finalize
 556
 557 target-finalize: $(PACKAGES)
 558         @$(call MESSAGE,"Finalizing target directory")
 559         $(foreach hook,$(TARGET_FINALIZE_HOOKS),$($(hook))$(sep))
 560         rm -rf $(TARGET_DIR)/usr/include $(TARGET_DIR)/usr/share/aclocal \
 561                 $(TARGET_DIR)/usr/lib/pkgconfig $(TARGET_DIR)/usr/share/pkgconfig \
 562                 $(TARGET_DIR)/usr/lib/cmake $(TARGET_DIR)/usr/share/cmake
 563         find $(TARGET_DIR)/usr/{lib,share}/ -name '*.cmake' -print0 | xargs -0 rm -f
 564         find $(TARGET_DIR)/lib $(TARGET_DIR)/usr/lib $(TARGET_DIR)/usr/libexec \
 565                 \( -name '*.a' -o -name '*.la' \) -print0 | xargs -0 rm -f
 566 ifneq ($(BR2_PACKAGE_GDB),y)
 567         rm -rf $(TARGET_DIR)/usr/share/gdb
 568 endif
 569 ifneq ($(BR2_PACKAGE_BASH),y)
 570         rm -rf $(TARGET_DIR)/usr/share/bash-completion
 571 endif
 572 ifneq ($(BR2_PACKAGE_ZSH),y)
 573         rm -rf $(TARGET_DIR)/usr/share/zsh
 574 endif
 575         rm -rf $(TARGET_DIR)/usr/man $(TARGET_DIR)/usr/share/man
 576         rm -rf $(TARGET_DIR)/usr/info $(TARGET_DIR)/usr/share/info
 577         rm -rf $(TARGET_DIR)/usr/doc $(TARGET_DIR)/usr/share/doc
 578         rm -rf $(TARGET_DIR)/usr/share/gtk-doc
 579         -rmdir $(TARGET_DIR)/usr/share 2>/dev/null
 580         $(STRIP_FIND_CMD) | xargs -0 $(STRIPCMD) 2>/dev/null || true
 581         if test -d $(TARGET_DIR)/lib/modules; then \
 582                 find $(TARGET_DIR)/lib/modules -type f -name '*.ko' -print0 | \
 583                 xargs -0 -r $(KSTRIPCMD); fi
 584
 585 # See http://sourceware.org/gdb/wiki/FAQ, "GDB does not see any threads
 586 # besides the one in which crash occurred; or SIGTRAP kills my program when
 587 # I set a breakpoint"
 588 ifeq ($(BR2_TOOLCHAIN_HAS_THREADS),y)
 589         find $(TARGET_DIR)/lib -type f -name 'libpthread*.so*' | \
 590                 xargs -r $(STRIPCMD) $(STRIP_STRIP_DEBUG)
 591 endif
 592
 593         mkdir -p $(TARGET_DIR)/etc
 594         # Mandatory configuration file and auxiliary cache directory
 595         # for recent versions of ldconfig
 596         touch $(TARGET_DIR)/etc/ld.so.conf
 597         mkdir -p $(TARGET_DIR)/var/cache/ldconfig
 598         if [ -x "$(TARGET_CROSS)ldconfig" ]; \
 599         then \
 600                 $(TARGET_CROSS)ldconfig -r $(TARGET_DIR) \
 601                                         -f $(TARGET_DIR)/etc/ld.so.conf; \
 602         else \
 603                 /sbin/ldconfig -r $(TARGET_DIR) \
 604                                -f $(TARGET_DIR)/etc/ld.so.conf; \
 605         fi
 606         ( \
 607                 echo "NAME=Buildroot"; \
 608                 echo "VERSION=$(BR2_VERSION_FULL)"; \
 609                 echo "ID=buildroot"; \
 610                 echo "VERSION_ID=$(BR2_VERSION)"; \
 611                 echo "PRETTY_NAME=\"Buildroot $(BR2_VERSION)\"" \
 612         ) >  $(TARGET_DIR)/etc/os-release
 613
 614         @$(foreach d, $(call qstrip,$(BR2_ROOTFS_OVERLAY)), \
 615                 $(call MESSAGE,"Copying overlay $(d)"); \
 616                 rsync -a --ignore-times $(RSYNC_VCS_EXCLUSIONS) \
 617                         --chmod=u=rwX,go=rX --exclude .empty --exclude '*~' \
 618                         $(d)/ $(TARGET_DIR)$(sep))
 619
 620         @$(foreach s, $(call qstrip,$(BR2_ROOTFS_POST_BUILD_SCRIPT)), \
 621                 $(call MESSAGE,"Executing post-build script $(s)"); \
 622                 $(EXTRA_ENV) $(s) $(TARGET_DIR) $(call qstrip,$(BR2_ROOTFS_POST_SCRIPT_ARGS))$(sep))
 623
 624 target-post-image: $(TARGETS_ROOTFS) target-finalize
 625         @$(foreach s, $(call qstrip,$(BR2_ROOTFS_POST_IMAGE_SCRIPT)), \
 626                 $(call MESSAGE,"Executing post-image script $(s)"); \
 627                 $(EXTRA_ENV) $(s) $(BINARIES_DIR) $(call qstrip,$(BR2_ROOTFS_POST_SCRIPT_ARGS))$(sep))
 628
 629 source: $(foreach p,$(PACKAGES),$(p)-all-source)
 630
 631 _external-deps: $(foreach p,$(PACKAGES),$(p)-all-external-deps)
 632 external-deps:
 633         @$(MAKE1) -Bs $(EXTRAMAKEARGS) _external-deps | sort -u
 634
 635 # check if download URLs are outdated
 636 source-check: $(foreach p,$(PACKAGES),$(p)-all-source-check)
 637
 638 legal-info-clean:
 639         @rm -fr $(LEGAL_INFO_DIR)
 640
 641 legal-info-prepare: $(LEGAL_INFO_DIR)
 642         @$(call MESSAGE,"Collecting legal info")
 643         @$(call legal-license-file,buildroot,COPYING,COPYING,HOST)
 644         @$(call legal-manifest,PACKAGE,VERSION,LICENSE,LICENSE FILES,SOURCE ARCHIVE,SOURCE SITE,TARGET)
 645         @$(call legal-manifest,PACKAGE,VERSION,LICENSE,LICENSE FILES,SOURCE ARCHIVE,SOURCE SITE,HOST)
 646         @$(call legal-manifest,buildroot,$(BR2_VERSION_FULL),GPLv2+,COPYING,not saved,not saved,HOST)
 647         @$(call legal-warning,the Buildroot source code has not been saved)
 648         @cp $(BR2_CONFIG) $(LEGAL_INFO_DIR)/buildroot.config
 649
 650 legal-info: dirs legal-info-clean legal-info-prepare $(foreach p,$(PACKAGES),$(p)-all-legal-info) \
 651                 $(REDIST_SOURCES_DIR_TARGET) $(REDIST_SOURCES_DIR_HOST)
 652         @cat support/legal-info/README.header >>$(LEGAL_REPORT)
 653         @if [ -r $(LEGAL_WARNINGS) ]; then \
 654                 cat support/legal-info/README.warnings-header \
 655                         $(LEGAL_WARNINGS) >>$(LEGAL_REPORT); \
 656                 cat $(LEGAL_WARNINGS); fi
 657         @echo "Legal info produced in $(LEGAL_INFO_DIR)"
 658         @rm -f $(LEGAL_WARNINGS)
 659
 660 show-targets:
 661         @echo $(PACKAGES) $(TARGETS_ROOTFS)
 662
 663 graph-build: $(O)/build/build-time.log
 664         @install -d $(GRAPHS_DIR)
 665         $(foreach o,name build duration,./support/scripts/graph-build-time \
 666                                         --type=histogram --order=$(o) --input=$(<) \
 667                                         --output=$(GRAPHS_DIR)/build.hist-$(o).$(BR_GRAPH_OUT) \
 668                                         $(if $(BR2_GRAPH_ALT),--alternate-colors)$(sep))
 669         $(foreach t,packages steps,./support/scripts/graph-build-time \
 670                                    --type=pie-$(t) --input=$(<) \
 671                                    --output=$(GRAPHS_DIR)/build.pie-$(t).$(BR_GRAPH_OUT) \
 672                                    $(if $(BR2_GRAPH_ALT),--alternate-colors)$(sep))
 673
 674 graph-depends-requirements:
 675         @dot -? >/dev/null 2>&1 || \
 676                 { echo "ERROR: The 'dot' program from Graphviz is needed for graph-depends" >&2; exit 1; }
 677
 678 graph-depends: graph-depends-requirements
 679         @$(INSTALL) -d $(GRAPHS_DIR)
 680         @cd "$(CONFIG_DIR)"; \
 681         $(TOPDIR)/support/scripts/graph-depends $(BR2_GRAPH_DEPS_OPTS) \
 682         |tee $(GRAPHS_DIR)/$(@).dot \
 683         |dot $(BR2_GRAPH_DOT_OPTS) -T$(BR_GRAPH_OUT) -o $(GRAPHS_DIR)/$(@).$(BR_GRAPH_OUT)
 684
 685 graph-size:
 686         $(Q)mkdir -p $(GRAPHS_DIR)
 687         $(Q)$(TOPDIR)/support/scripts/size-stats --builddir $(BASE_DIR) \
 688                 --graph $(GRAPHS_DIR)/graph-size.$(BR_GRAPH_OUT) \
 689                 --file-size-csv $(GRAPHS_DIR)/file-size-stats.csv \
 690                 --package-size-csv $(GRAPHS_DIR)/package-size-stats.csv
 691
 692 else # ifeq ($(BR2_HAVE_DOT_CONFIG),y)
 693
 694 all: menuconfig
 695
 696 endif # ifeq ($(BR2_HAVE_DOT_CONFIG),y)
 697
 698 # configuration
 699 # ---------------------------------------------------------------------------
 700
 701 HOSTCFLAGS = $(CFLAGS_FOR_BUILD)
 702 export HOSTCFLAGS
 703
 704 $(BUILD_DIR)/buildroot-config/%onf:
 705         mkdir -p $(@D)/lxdialog
 706         PKG_CONFIG_PATH="$(HOST_PKG_CONFIG_PATH)" $(MAKE) CC="$(HOSTCC_NOCCACHE)" HOSTCC="$(HOSTCC_NOCCACHE)" \
 707             obj=$(@D) -C $(CONFIG) -f Makefile.br $(@F)
 708
 709 DEFCONFIG = $(call qstrip,$(BR2_DEFCONFIG))
 710
 711 # We don't want to fully expand BR2_DEFCONFIG here, so Kconfig will
 712 # recognize that if it's still at its default $(CONFIG_DIR)/defconfig
 713 COMMON_CONFIG_ENV = \
 714         BR2_DEFCONFIG='$(call qstrip,$(value BR2_DEFCONFIG))' \
 715         KCONFIG_AUTOCONFIG=$(BUILD_DIR)/buildroot-config/auto.conf \
 716         KCONFIG_AUTOHEADER=$(BUILD_DIR)/buildroot-config/autoconf.h \
 717         KCONFIG_TRISTATE=$(BUILD_DIR)/buildroot-config/tristate.config \
 718         BR2_CONFIG=$(BR2_CONFIG) \
 719         BR2_EXTERNAL=$(BR2_EXTERNAL) \
 720         SKIP_LEGACY=
 721
 722 xconfig: $(BUILD_DIR)/buildroot-config/qconf outputmakefile
 723         @$(COMMON_CONFIG_ENV) $< $(CONFIG_CONFIG_IN)
 724
 725 gconfig: $(BUILD_DIR)/buildroot-config/gconf outputmakefile
 726         @$(COMMON_CONFIG_ENV) srctree=$(TOPDIR) $< $(CONFIG_CONFIG_IN)
 727
 728 menuconfig: $(BUILD_DIR)/buildroot-config/mconf outputmakefile
 729         @$(COMMON_CONFIG_ENV) $< $(CONFIG_CONFIG_IN)
 730
 731 nconfig: $(BUILD_DIR)/buildroot-config/nconf outputmakefile
 732         @$(COMMON_CONFIG_ENV) $< $(CONFIG_CONFIG_IN)
 733
 734 config: $(BUILD_DIR)/buildroot-config/conf outputmakefile
 735         @$(COMMON_CONFIG_ENV) $< $(CONFIG_CONFIG_IN)
 736
 737 # For the config targets that automatically select options, we pass
 738 # SKIP_LEGACY=y to disable the legacy options. However, in that case
 739 # no values are set for the legacy options so a subsequent oldconfig
 740 # will query them. Therefore, run an additional olddefconfig.
 741
 742 oldconfig: $(BUILD_DIR)/buildroot-config/conf outputmakefile
 743         @$(COMMON_CONFIG_ENV) $< --oldconfig $(CONFIG_CONFIG_IN)
 744
 745 randconfig: $(BUILD_DIR)/buildroot-config/conf outputmakefile
 746         @$(COMMON_CONFIG_ENV) SKIP_LEGACY=y $< --randconfig $(CONFIG_CONFIG_IN)
 747         @$(COMMON_CONFIG_ENV) $< --olddefconfig $(CONFIG_CONFIG_IN) >/dev/null
 748
 749 allyesconfig: $(BUILD_DIR)/buildroot-config/conf outputmakefile
 750         @$(COMMON_CONFIG_ENV) SKIP_LEGACY=y $< --allyesconfig $(CONFIG_CONFIG_IN)
 751         @$(COMMON_CONFIG_ENV) $< --olddefconfig $(CONFIG_CONFIG_IN) >/dev/null
 752
 753 allnoconfig: $(BUILD_DIR)/buildroot-config/conf outputmakefile
 754         @$(COMMON_CONFIG_ENV) SKIP_LEGACY=y $< --allnoconfig $(CONFIG_CONFIG_IN)
 755         @$(COMMON_CONFIG_ENV) $< --olddefconfig $(CONFIG_CONFIG_IN) >/dev/null
 756
 757 randpackageconfig: $(BUILD_DIR)/buildroot-config/conf outputmakefile
 758         @grep -v BR2_PACKAGE_ $(BR2_CONFIG) > $(CONFIG_DIR)/.config.nopkg
 759         @$(COMMON_CONFIG_ENV) SKIP_LEGACY=y \
 760                 KCONFIG_ALLCONFIG=$(CONFIG_DIR)/.config.nopkg \
 761                 $< --randconfig $(CONFIG_CONFIG_IN)
 762         @rm -f $(CONFIG_DIR)/.config.nopkg
 763         @$(COMMON_CONFIG_ENV) $< --olddefconfig $(CONFIG_CONFIG_IN) >/dev/null
 764
 765 allyespackageconfig: $(BUILD_DIR)/buildroot-config/conf outputmakefile
 766         @grep -v BR2_PACKAGE_ $(BR2_CONFIG) > $(CONFIG_DIR)/.config.nopkg
 767         @$(COMMON_CONFIG_ENV) SKIP_LEGACY=y \
 768                 KCONFIG_ALLCONFIG=$(CONFIG_DIR)/.config.nopkg \
 769                 $< --allyesconfig $(CONFIG_CONFIG_IN)
 770         @rm -f $(CONFIG_DIR)/.config.nopkg
 771         @$(COMMON_CONFIG_ENV) $< --olddefconfig $(CONFIG_CONFIG_IN) >/dev/null
 772
 773 allnopackageconfig: $(BUILD_DIR)/buildroot-config/conf outputmakefile
 774         @grep -v BR2_PACKAGE_ $(BR2_CONFIG) > $(CONFIG_DIR)/.config.nopkg
 775         @$(COMMON_CONFIG_ENV) SKIP_LEGACY=y \
 776                 KCONFIG_ALLCONFIG=$(CONFIG_DIR)/.config.nopkg \
 777                 $< --allnoconfig $(CONFIG_CONFIG_IN)
 778         @rm -f $(CONFIG_DIR)/.config.nopkg
 779         @$(COMMON_CONFIG_ENV) $< --olddefconfig $(CONFIG_CONFIG_IN) >/dev/null
 780
 781 silentoldconfig: $(BUILD_DIR)/buildroot-config/conf outputmakefile
 782         $(COMMON_CONFIG_ENV) $< --silentoldconfig $(CONFIG_CONFIG_IN)
 783
 784 olddefconfig: $(BUILD_DIR)/buildroot-config/conf outputmakefile
 785         $(COMMON_CONFIG_ENV) $< --olddefconfig $(CONFIG_CONFIG_IN)
 786
 787 defconfig: $(BUILD_DIR)/buildroot-config/conf outputmakefile
 788         @$(COMMON_CONFIG_ENV) $< --defconfig$(if $(DEFCONFIG),=$(DEFCONFIG)) $(CONFIG_CONFIG_IN)
 789
 790 # Override the BR2_DEFCONFIG from COMMON_CONFIG_ENV with the new defconfig
 791 %_defconfig: $(BUILD_DIR)/buildroot-config/conf $(TOPDIR)/configs/%_defconfig outputmakefile
 792         @$(COMMON_CONFIG_ENV) BR2_DEFCONFIG=$(TOPDIR)/configs/$@ \
 793                 $< --defconfig=$(TOPDIR)/configs/$@ $(CONFIG_CONFIG_IN)
 794
 795 %_defconfig: $(BUILD_DIR)/buildroot-config/conf $(BR2_EXTERNAL)/configs/%_defconfig outputmakefile
 796         @$(COMMON_CONFIG_ENV) BR2_DEFCONFIG=$(BR2_EXTERNAL)/configs/$@ \
 797                 $< --defconfig=$(BR2_EXTERNAL)/configs/$@ $(CONFIG_CONFIG_IN)
 798
 799 savedefconfig: $(BUILD_DIR)/buildroot-config/conf outputmakefile
 800         @$(COMMON_CONFIG_ENV) $< \
 801                 --savedefconfig=$(if $(DEFCONFIG),$(DEFCONFIG),$(CONFIG_DIR)/defconfig) \
 802                 $(CONFIG_CONFIG_IN)
 803         @$(SED) '/BR2_DEFCONFIG=/d' $(if $(DEFCONFIG),$(DEFCONFIG),$(CONFIG_DIR)/defconfig)
 804
 805 .PHONY: defconfig savedefconfig
 806
 807 ################################################################################
 808 #
 809 # Cleanup and misc junk
 810 #
 811 ################################################################################
 812
 813 # outputmakefile generates a Makefile in the output directory, if using a
 814 # separate output directory. This allows convenient use of make in the
 815 # output directory.
 816 outputmakefile:
 817 ifeq ($(NEED_WRAPPER),y)
 818         $(Q)$(TOPDIR)/support/scripts/mkmakefile $(TOPDIR) $(O)
 819 endif
 820
 821 # printvars prints all the variables currently defined in our
 822 # Makefiles. Alternatively, if a non-empty VARS variable is passed,
 823 # only the variables matching the make pattern passed in VARS are
 824 # displayed.
 825 printvars:
 826         @$(foreach V, \
 827                 $(sort $(if $(VARS),$(filter $(VARS),$(.VARIABLES)),$(.VARIABLES))), \
 828                 $(if $(filter-out environment% default automatic, \
 829                                 $(origin $V)), \
 830                 $(info $V=$($V) ($(value $V)))))
 831
 832 clean:
 833         rm -rf $(TARGET_DIR) $(BINARIES_DIR) $(HOST_DIR) \
 834                 $(BUILD_DIR) $(BASE_DIR)/staging \
 835                 $(LEGAL_INFO_DIR) $(GRAPHS_DIR)
 836
 837 distclean: clean
 838 ifeq ($(DL_DIR),$(TOPDIR)/dl)
 839         rm -rf $(DL_DIR)
 840 endif
 841 ifeq ($(O),output)
 842         rm -rf $(O)
 843 endif
 844         rm -rf $(BR2_CONFIG) $(CONFIG_DIR)/.config.old $(CONFIG_DIR)/..config.tmp \
 845                 $(CONFIG_DIR)/.auto.deps $(BR2_EXTERNAL_FILE)
 846
 847 help:
 848         @echo 'Cleaning:'
 849         @echo '  clean                  - delete all files created by build'
 850         @echo '  distclean              - delete all non-source files (including .config)'
 851         @echo
 852         @echo 'Build:'
 853         @echo '  all                    - make world'
 854         @echo '  toolchain              - build toolchain'
 855         @echo
 856         @echo 'Configuration:'
 857         @echo '  menuconfig             - interactive curses-based configurator'
 858         @echo '  nconfig                - interactive ncurses-based configurator'
 859         @echo '  xconfig                - interactive Qt-based configurator'
 860         @echo '  gconfig                - interactive GTK-based configurator'
 861         @echo '  oldconfig              - resolve any unresolved symbols in .config'
 862         @echo '  silentoldconfig        - Same as oldconfig, but quietly, additionally update deps'
 863         @echo '  olddefconfig           - Same as silentoldconfig but sets new symbols to their default value'
 864         @echo '  randconfig             - New config with random answer to all options'
 865         @echo '  defconfig              - New config with default answer to all options'
 866         @echo '                             BR2_DEFCONFIG, if set, is used as input'
 867         @echo '  savedefconfig          - Save current config to BR2_DEFCONFIG (minimal config)'
 868         @echo '  allyesconfig           - New config where all options are accepted with yes'
 869         @echo '  allnoconfig            - New config where all options are answered with no'
 870         @echo '  randpackageconfig      - New config with random answer to package options'
 871         @echo '  allyespackageconfig    - New config where pkg options are accepted with yes'
 872         @echo '  allnopackageconfig     - New config where package options are answered with no'
 873         @echo
 874         @echo 'Package-specific:'
 875         @echo '  <pkg>                  - Build and install <pkg> and all its dependencies'
 876         @echo '  <pkg>-source           - Only download the source files for <pkg>'
 877         @echo '  <pkg>-extract          - Extract <pkg> sources'
 878         @echo '  <pkg>-patch            - Apply patches to <pkg>'
 879         @echo '  <pkg>-depends          - Build <pkg>'\''s dependencies'
 880         @echo '  <pkg>-configure        - Build <pkg> up to the configure step'
 881         @echo '  <pkg>-build            - Build <pkg> up to the build step'
 882         @echo '  <pkg>-graph-depends    - Generate a graph of <pkg>'\''s dependencies'
 883         @echo '  <pkg>-dirclean         - Remove <pkg> build directory'
 884         @echo '  <pkg>-reconfigure      - Restart the build from the configure step'
 885         @echo '  <pkg>-rebuild          - Restart the build from the build step'
 886 ifeq ($(BR2_PACKAGE_BUSYBOX),y)
 887         @echo '  busybox-menuconfig     - Run BusyBox menuconfig'
 888 endif
 889 ifeq ($(BR2_LINUX_KERNEL),y)
 890         @echo '  linux-menuconfig       - Run Linux kernel menuconfig'
 891         @echo '  linux-savedefconfig    - Run Linux kernel savedefconfig'
 892         @echo '  linux-update-defconfig - Save the Linux configuration to the path specified'
 893         @echo '                             by BR2_LINUX_KERNEL_CUSTOM_CONFIG_FILE'
 894 endif
 895 ifeq ($(BR2_TOOLCHAIN_BUILDROOT),y)
 896         @echo '  uclibc-menuconfig      - Run uClibc menuconfig'
 897 endif
 898 ifeq ($(BR2_TARGET_BAREBOX),y)
 899         @echo '  barebox-menuconfig     - Run barebox menuconfig'
 900         @echo '  barebox-savedefconfig  - Run barebox savedefconfig'
 901 endif
 902         @echo
 903         @echo 'Documentation:'
 904         @echo '  manual                 - build manual in all formats'
 905         @echo '  manual-html            - build manual in HTML'
 906         @echo '  manual-split-html      - build manual in split HTML'
 907         @echo '  manual-pdf             - build manual in PDF'
 908         @echo '  manual-text            - build manual in text'
 909         @echo '  manual-epub            - build manual in ePub'
 910         @echo '  graph-build            - generate graphs of the build times'
 911         @echo '  graph-depends          - generate graph of the dependency tree'
 912         @echo '  graph-size             - generate stats of the filesystem size'
 913         @echo '  list-defconfigs        - list all defconfigs (pre-configured minimal systems)'
 914         @echo
 915         @echo 'Miscellaneous:'
 916         @echo '  source                 - download all sources needed for offline-build'
 917         @echo '  source-check           - check selected packages for valid download URLs'
 918         @echo '  external-deps          - list external packages used'
 919         @echo '  legal-info             - generate info about license compliance'
 920         @echo
 921         @echo '  make V=0|1             - 0 => quiet build (default), 1 => verbose build'
 922         @echo '  make O=dir             - Locate all output files in "dir", including .config'
 923         @echo
 924         @echo 'For further details, see README, generate the Buildroot manual, or consult'
 925         @echo 'it on-line at http://buildroot.org/docs.html'
 926         @echo
 927
 928 list-defconfigs:
 929         @echo 'Built-in configs:'
 930         @$(foreach b, $(sort $(notdir $(wildcard $(TOPDIR)/configs/*_defconfig))), \
 931           printf "  %-35s - Build for %s\\n" $(b) $(b:_defconfig=);)
 932 ifneq ($(wildcard $(BR2_EXTERNAL)/configs/*_defconfig),)
 933         @echo
 934         @echo 'User-provided configs:'
 935         @$(foreach b, $(sort $(notdir $(wildcard $(BR2_EXTERNAL)/configs/*_defconfig))), \
 936           printf "  %-35s - Build for %s\\n" $(b) $(b:_defconfig=);)
 937 endif
 938         @echo
 939
 940 release: OUT = buildroot-$(BR2_VERSION)
 941
 942 # Create release tarballs. We need to fiddle a bit to add the generated
 943 # documentation to the git output
 944 release:
 945         git archive --format=tar --prefix=$(OUT)/ HEAD > $(OUT).tar
 946         $(MAKE) O=$(OUT) manual-html manual-text manual-pdf
 947         $(MAKE) O=$(OUT) manual-clean
 948         tar rf $(OUT).tar $(OUT)
 949         gzip -9 -c < $(OUT).tar > $(OUT).tar.gz
 950         bzip2 -9 -c < $(OUT).tar > $(OUT).tar.bz2
 951         rm -rf $(OUT) $(OUT).tar
 952
 953 print-version:
 954         @echo $(BR2_VERSION_FULL)
 955
 956 include docs/manual/manual.mk
 957 -include $(BR2_EXTERNAL)/docs/*/*.mk
 958
 959 .PHONY: $(noconfig_targets)
 960
 961 endif #umask