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 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 # This is our default rule, so must come first
  28 all:
  29
  30 # Set and export the version string
  31 export BR2_VERSION := 2014.11-git
  32
  33 # Check for minimal make version (note: this check will break at make 10.x)
  34 MIN_MAKE_VERSION = 3.81
  35 ifneq ($(firstword $(sort $(MAKE_VERSION) $(MIN_MAKE_VERSION))),$(MIN_MAKE_VERSION))
  36 $(error You have make '$(MAKE_VERSION)' installed. GNU make >= $(MIN_MAKE_VERSION) is required)
  37 endif
  38
  39 export HOSTARCH := $(shell uname -m | \
  40         sed -e s/i.86/x86/ \
  41             -e s/sun4u/sparc64/ \
  42             -e s/arm.*/arm/ \
  43             -e s/sa110/arm/ \
  44             -e s/ppc64/powerpc64/ \
  45             -e s/ppc/powerpc/ \
  46             -e s/macppc/powerpc/\
  47             -e s/sh.*/sh/)
  48
  49 # Parallel execution of this Makefile is disabled because it changes
  50 # the packages building order, that can be a problem for two reasons:
  51 # - If a package has an unspecified optional dependency and that
  52 #   dependency is present when the package is built, it is used,
  53 #   otherwise it isn't (but compilation happily proceeds) so the end
  54 #   result will differ if the order is swapped due to parallel
  55 #   building.
  56 # - Also changing the building order can be a problem if two packages
  57 #   manipulate the same file in the target directory.
  58 #
  59 # Taking into account the above considerations, if you still want to execute
  60 # this top-level Makefile in parallel comment the ".NOTPARALLEL" line and
  61 # build using the following command:
  62 #       make BR2_JLEVEL= -j$((`getconf _NPROCESSORS_ONLN`+1))
  63 .NOTPARALLEL:
  64
  65 # absolute path
  66 TOPDIR := $(shell pwd)
  67 CONFIG_CONFIG_IN = Config.in
  68 CONFIG = support/kconfig
  69 DATE := $(shell date +%Y%m%d)
  70
  71 # Compute the full local version string so packages can use it as-is
  72 # Need to export it, so it can be got from environment in children (eg. mconf)
  73 export BR2_VERSION_FULL := $(BR2_VERSION)$(shell $(TOPDIR)/support/scripts/setlocalversion)
  74
  75 noconfig_targets := menuconfig nconfig gconfig xconfig config oldconfig randconfig \
  76         defconfig %_defconfig allyesconfig allnoconfig silentoldconfig release \
  77         randpackageconfig allyespackageconfig allnopackageconfig \
  78         source-check print-version olddefconfig
  79
  80 # Strip quotes and then whitespaces
  81 qstrip = $(strip $(subst ",,$(1)))
  82 #"))
  83
  84 # Variables for use in Make constructs
  85 comma := ,
  86 empty :=
  87 space := $(empty) $(empty)
  88
  89 ifneq ("$(origin O)", "command line")
  90 O := output
  91 CONFIG_DIR := $(TOPDIR)
  92 NEED_WRAPPER =
  93 else
  94 # other packages might also support Linux-style out of tree builds
  95 # with the O=<dir> syntax (E.G. BusyBox does). As make automatically
  96 # forwards command line variable definitions those packages get very
  97 # confused. Fix this by telling make to not do so
  98 MAKEOVERRIDES =
  99 # strangely enough O is still passed to submakes with MAKEOVERRIDES
 100 # (with make 3.81 atleast), the only thing that changes is the output
 101 # of the origin function (command line -> environment).
 102 # Unfortunately some packages don't look at origin (E.G. uClibc 0.9.31+)
 103 # To really make O go away, we have to override it.
 104 override O := $(O)
 105 CONFIG_DIR := $(O)
 106 # we need to pass O= everywhere we call back into the toplevel makefile
 107 EXTRAMAKEARGS = O=$(O)
 108 NEED_WRAPPER = y
 109 endif
 110
 111 # bash prints the name of the directory on 'cd <dir>' if CDPATH is
 112 # set, so unset it here to not cause problems. Notice that the export
 113 # line doesn't affect the environment of $(shell ..) calls, so
 114 # explictly throw away any output from 'cd' here.
 115 export CDPATH :=
 116 BASE_DIR := $(shell mkdir -p $(O) && cd $(O) >/dev/null && pwd)
 117 $(if $(BASE_DIR),, $(error output directory "$(O)" does not exist))
 118
 119
 120 # Handling of BR2_EXTERNAL.
 121 #
 122 # The value of BR2_EXTERNAL is stored in .br-external in the output directory.
 123 # On subsequent invocations of make, it is read in. It can still be overridden
 124 # on the command line, therefore the file is re-created every time make is run.
 125 #
 126 # When BR2_EXTERNAL is not set, the .br-external file is removed and we point
 127 # to support/dummy-external. This makes sure we can unconditionally include the
 128 # Config.in and external.mk from the BR2_EXTERNAL directory. In this case,
 129 # override is necessary so the user can clear BR2_EXTERNAL from the command
 130 # line, but the dummy path is still used internally.
 131
 132 BR2_EXTERNAL_FILE = $(BASE_DIR)/.br-external
 133 -include $(BR2_EXTERNAL_FILE)
 134 ifeq ($(BR2_EXTERNAL),)
 135   override BR2_EXTERNAL = support/dummy-external
 136   $(shell rm -f $(BR2_EXTERNAL_FILE))
 137 else
 138   _BR2_EXTERNAL = $(shell cd $(BR2_EXTERNAL) >/dev/null 2>&1 && pwd)
 139   ifeq ($(_BR2_EXTERNAL),)
 140     $(error BR2_EXTERNAL='$(BR2_EXTERNAL)' does not exist, relative to $(TOPDIR))
 141   endif
 142   override BR2_EXTERNAL := $(_BR2_EXTERNAL)
 143   $(shell echo BR2_EXTERNAL ?= $(BR2_EXTERNAL) > $(BR2_EXTERNAL_FILE))
 144 endif
 145
 146 # To make sure the the environment variable overrides the .config option,
 147 # set this before including .config.
 148 ifneq ($(BR2_DL_DIR),)
 149 DL_DIR := $(BR2_DL_DIR)
 150 endif
 151
 152
 153 # Need that early, before we scan packages
 154 # Avoids doing the $(or...) everytime
 155 BR_GRAPH_OUT := $(or $(BR2_GRAPH_OUT),pdf)
 156
 157 BUILD_DIR := $(BASE_DIR)/build
 158 BINARIES_DIR := $(BASE_DIR)/images
 159 TARGET_DIR := $(BASE_DIR)/target
 160 # initial definition so that 'make clean' works for most users, even without
 161 # .config. HOST_DIR will be overwritten later when .config is included.
 162 HOST_DIR := $(BASE_DIR)/host
 163
 164 LEGAL_INFO_DIR = $(BASE_DIR)/legal-info
 165 REDIST_SOURCES_DIR_TARGET = $(LEGAL_INFO_DIR)/sources
 166 REDIST_SOURCES_DIR_HOST = $(LEGAL_INFO_DIR)/host-sources
 167 LICENSE_FILES_DIR_TARGET = $(LEGAL_INFO_DIR)/licenses
 168 LICENSE_FILES_DIR_HOST = $(LEGAL_INFO_DIR)/host-licenses
 169 LEGAL_MANIFEST_CSV_TARGET = $(LEGAL_INFO_DIR)/manifest.csv
 170 LEGAL_MANIFEST_CSV_HOST = $(LEGAL_INFO_DIR)/host-manifest.csv
 171 LEGAL_LICENSES_TXT_TARGET = $(LEGAL_INFO_DIR)/licenses.txt
 172 LEGAL_LICENSES_TXT_HOST = $(LEGAL_INFO_DIR)/host-licenses.txt
 173 LEGAL_WARNINGS = $(LEGAL_INFO_DIR)/.warnings
 174 LEGAL_REPORT = $(LEGAL_INFO_DIR)/README
 175
 176 BR2_CONFIG = $(CONFIG_DIR)/.config
 177
 178 # Pull in the user's configuration file
 179 ifeq ($(filter $(noconfig_targets),$(MAKECMDGOALS)),)
 180 -include $(BR2_CONFIG)
 181 endif
 182
 183 # To put more focus on warnings, be less verbose as default
 184 # Use 'make V=1' to see the full commands
 185 ifdef V
 186   ifeq ("$(origin V)", "command line")
 187     KBUILD_VERBOSE = $(V)
 188   endif
 189 endif
 190 ifndef KBUILD_VERBOSE
 191   KBUILD_VERBOSE = 0
 192 endif
 193
 194 ifeq ($(KBUILD_VERBOSE),1)
 195   quiet =
 196   Q =
 197 ifndef VERBOSE
 198   VERBOSE = 1
 199 endif
 200 else
 201   quiet = quiet_
 202   Q = @
 203 endif
 204
 205 # we want bash as shell
 206 SHELL := $(shell if [ -x "$$BASH" ]; then echo $$BASH; \
 207          else if [ -x /bin/bash ]; then echo /bin/bash; \
 208          else echo sh; fi; fi)
 209
 210 # kconfig uses CONFIG_SHELL
 211 CONFIG_SHELL := $(SHELL)
 212
 213 export SHELL CONFIG_SHELL quiet Q KBUILD_VERBOSE VERBOSE
 214
 215 ifndef HOSTAR
 216 HOSTAR := ar
 217 endif
 218 ifndef HOSTAS
 219 HOSTAS := as
 220 endif
 221 ifndef HOSTCC
 222 HOSTCC := gcc
 223 HOSTCC := $(shell which $(HOSTCC) || type -p $(HOSTCC) || echo gcc)
 224 endif
 225 HOSTCC_NOCCACHE := $(HOSTCC)
 226 ifndef HOSTCXX
 227 HOSTCXX := g++
 228 HOSTCXX := $(shell which $(HOSTCXX) || type -p $(HOSTCXX) || echo g++)
 229 endif
 230 HOSTCXX_NOCCACHE := $(HOSTCXX)
 231 ifndef HOSTFC
 232 HOSTFC := gfortran
 233 endif
 234 ifndef HOSTCPP
 235 HOSTCPP := cpp
 236 endif
 237 ifndef HOSTLD
 238 HOSTLD := ld
 239 endif
 240 ifndef HOSTLN
 241 HOSTLN := ln
 242 endif
 243 ifndef HOSTNM
 244 HOSTNM := nm
 245 endif
 246 ifndef HOSTOBJCOPY
 247 HOSTOBJCOPY := objcopy
 248 endif
 249 ifndef HOSTRANLIB
 250 HOSTRANLIB := ranlib
 251 endif
 252 HOSTAR := $(shell which $(HOSTAR) || type -p $(HOSTAR) || echo ar)
 253 HOSTAS := $(shell which $(HOSTAS) || type -p $(HOSTAS) || echo as)
 254 HOSTFC := $(shell which $(HOSTLD) || type -p $(HOSTLD) || echo || which g77 || type -p g77 || echo gfortran)
 255 HOSTCPP := $(shell which $(HOSTCPP) || type -p $(HOSTCPP) || echo cpp)
 256 HOSTLD := $(shell which $(HOSTLD) || type -p $(HOSTLD) || echo ld)
 257 HOSTLN := $(shell which $(HOSTLN) || type -p $(HOSTLN) || echo ln)
 258 HOSTNM := $(shell which $(HOSTNM) || type -p $(HOSTNM) || echo nm)
 259 HOSTOBJCOPY := $(shell which $(HOSTOBJCOPY) || type -p $(HOSTOBJCOPY) || echo objcopy)
 260 HOSTRANLIB := $(shell which $(HOSTRANLIB) || type -p $(HOSTRANLIB) || echo ranlib)
 261
 262 export HOSTAR HOSTAS HOSTCC HOSTCXX HOSTFC HOSTLD
 263 export HOSTCC_NOCCACHE HOSTCXX_NOCCACHE
 264
 265 # Make sure pkg-config doesn't look outside the buildroot tree
 266 unexport PKG_CONFIG_PATH
 267 unexport PKG_CONFIG_SYSROOT_DIR
 268 unexport PKG_CONFIG_LIBDIR
 269
 270 # Having DESTDIR set in the environment confuses the installation
 271 # steps of some packages.
 272 unexport DESTDIR
 273
 274 # Causes breakage with packages that needs host-ruby
 275 unexport RUBYOPT
 276
 277 include package/pkg-utils.mk
 278 include package/doc-asciidoc.mk
 279
 280 ifeq ($(BR2_HAVE_DOT_CONFIG),y)
 281
 282 ################################################################################
 283 #
 284 # Hide troublesome environment variables from sub processes
 285 #
 286 ################################################################################
 287 unexport CROSS_COMPILE
 288 unexport ARCH
 289 unexport CC
 290 unexport CXX
 291 unexport CPP
 292 unexport CFLAGS
 293 unexport CXXFLAGS
 294 unexport GREP_OPTIONS
 295 unexport TAR_OPTIONS
 296 unexport CONFIG_SITE
 297 unexport QMAKESPEC
 298 unexport TERMINFO
 299 unexport MACHINE
 300
 301 GNU_HOST_NAME := $(shell support/gnuconfig/config.guess)
 302
 303 TARGETS :=
 304
 305 # silent mode requested?
 306 QUIET := $(if $(findstring s,$(MAKEFLAGS)),-q)
 307
 308 # Strip off the annoying quoting
 309 ARCH := $(call qstrip,$(BR2_ARCH))
 310
 311 KERNEL_ARCH := $(shell echo "$(ARCH)" | sed -e "s/-.*//" \
 312         -e s/i.86/i386/ -e s/sun4u/sparc64/ \
 313         -e s/arcle/arc/ \
 314         -e s/arceb/arc/ \
 315         -e s/arm.*/arm/ -e s/sa110/arm/ \
 316         -e s/aarch64/arm64/ \
 317         -e s/bfin/blackfin/ \
 318         -e s/parisc64/parisc/ \
 319         -e s/powerpc64.*/powerpc/ \
 320         -e s/ppc.*/powerpc/ -e s/mips.*/mips/ \
 321         -e s/sh.*/sh/ \
 322         -e s/microblazeel/microblaze/)
 323
 324 ZCAT := $(call qstrip,$(BR2_ZCAT))
 325 BZCAT := $(call qstrip,$(BR2_BZCAT))
 326 XZCAT := $(call qstrip,$(BR2_XZCAT))
 327 TAR_OPTIONS = $(call qstrip,$(BR2_TAR_OPTIONS)) -xf
 328
 329 # packages compiled for the host go here
 330 HOST_DIR := $(call qstrip,$(BR2_HOST_DIR))
 331
 332 # Quotes are needed for spaces and all in the original PATH content.
 333 BR_PATH = "$(HOST_DIR)/bin:$(HOST_DIR)/sbin:$(HOST_DIR)/usr/bin:$(HOST_DIR)/usr/sbin:$(PATH)"
 334
 335 TARGET_SKELETON = $(TOPDIR)/system/skeleton
 336
 337 # Location of a file giving a big fat warning that output/target
 338 # should not be used as the root filesystem.
 339 TARGET_DIR_WARNING_FILE = $(TARGET_DIR)/THIS_IS_NOT_YOUR_ROOT_FILESYSTEM
 340
 341 ifeq ($(BR2_CCACHE),y)
 342 CCACHE := $(HOST_DIR)/usr/bin/ccache
 343 BR_CACHE_DIR = $(call qstrip,$(BR2_CCACHE_DIR))
 344 export BR_CACHE_DIR
 345 HOSTCC := $(CCACHE) $(HOSTCC)
 346 HOSTCXX := $(CCACHE) $(HOSTCXX)
 347 endif
 348
 349 # Scripts in support/ or post-build scripts may need to reference
 350 # these locations, so export them so it is easier to use
 351 export BR2_CONFIG
 352 export TARGET_DIR
 353 export STAGING_DIR
 354 export HOST_DIR
 355 export BINARIES_DIR
 356 export BASE_DIR
 357
 358 ################################################################################
 359 #
 360 # You should probably leave this stuff alone unless you know
 361 # what you are doing.
 362 #
 363 ################################################################################
 364
 365 all: world
 366
 367 # Include legacy before the other things, because package .mk files
 368 # may rely on it.
 369 ifneq ($(BR2_DEPRECATED),y)
 370 include Makefile.legacy
 371 endif
 372
 373 include package/Makefile.in
 374 include support/dependencies/dependencies.mk
 375
 376 # We also need the various per-package makefiles, which also add
 377 # each selected package to TARGETS if that package was selected
 378 # in the .config file.
 379 include toolchain/*.mk
 380 include toolchain/*/*.mk
 381
 382 # Include the package override file if one has been provided in the
 383 # configuration.
 384 PACKAGE_OVERRIDE_FILE = $(call qstrip,$(BR2_PACKAGE_OVERRIDE_FILE))
 385 ifneq ($(PACKAGE_OVERRIDE_FILE),)
 386 -include $(PACKAGE_OVERRIDE_FILE)
 387 endif
 388
 389 include $(sort $(wildcard package/*/*.mk))
 390
 391 include boot/common.mk
 392 include linux/linux.mk
 393 include system/system.mk
 394 include fs/common.mk
 395
 396 include $(BR2_EXTERNAL)/external.mk
 397
 398 TARGETS_SOURCE := $(patsubst %,%-source,$(TARGETS))
 399 TARGETS_DIRCLEAN := $(patsubst %,%-dirclean,$(TARGETS))
 400
 401 # host-* dependencies have to be handled specially, as those aren't
 402 # visible in Kconfig and hence not added to a variable like TARGETS.
 403 # instead, find all the host-* targets listed in each <PKG>_DEPENDENCIES
 404 # variable for each enabled target.
 405 # Notice: this only works for newstyle gentargets/autotargets packages
 406 TARGETS_HOST_DEPS = $(sort $(filter host-%,$(foreach dep,\
 407                 $(addsuffix _DEPENDENCIES,\
 408                         $(call UPPERCASE,$(TARGETS) $(TARGETS_ROOTFS))),\
 409                 $($(dep)))))
 410 # Host packages can in turn have their own dependencies. Likewise find
 411 # all the package names listed in the HOST_<PKG>_DEPENDENCIES for each
 412 # host package found above. Ideally this should be done recursively until
 413 # no more packages are found, but that's hard to do in make, so limit to
 414 # 1 level for now.
 415 HOST_DEPS = $(sort $(foreach dep,\
 416                 $(addsuffix _DEPENDENCIES,$(call UPPERCASE,$(TARGETS_HOST_DEPS))),\
 417                 $($(dep))))
 418 HOST_SOURCE += $(addsuffix -source,$(sort $(TARGETS_HOST_DEPS) $(HOST_DEPS)))
 419
 420 TARGETS_LEGAL_INFO := $(patsubst %,%-legal-info,\
 421                 $(TARGETS) $(TARGETS_HOST_DEPS) $(HOST_DEPS))
 422
 423 dirs: $(BUILD_DIR) $(STAGING_DIR) $(TARGET_DIR) \
 424         $(HOST_DIR) $(BINARIES_DIR)
 425
 426 $(BUILD_DIR)/buildroot-config/auto.conf: $(BR2_CONFIG)
 427         $(MAKE1) $(EXTRAMAKEARGS) HOSTCC="$(HOSTCC_NOCCACHE)" HOSTCXX="$(HOSTCXX_NOCCACHE)" silentoldconfig
 428
 429 prepare: $(BUILD_DIR)/buildroot-config/auto.conf
 430
 431 world: target-post-image
 432
 433 .PHONY: all world toolchain dirs clean distclean source outputmakefile \
 434         legal-info legal-info-prepare legal-info-clean printvars \
 435         target-finalize target-post-image \
 436         $(TARGETS) $(TARGETS_ROOTFS) \
 437         $(TARGETS_DIRCLEAN) $(TARGETS_SOURCE) $(TARGETS_LEGAL_INFO) \
 438         $(BUILD_DIR) $(STAGING_DIR) $(TARGET_DIR) \
 439         $(HOST_DIR) $(BINARIES_DIR)
 440
 441 ################################################################################
 442 #
 443 # staging and target directories do NOT list these as
 444 # dependencies anywhere else
 445 #
 446 ################################################################################
 447 $(BUILD_DIR) $(HOST_DIR) $(BINARIES_DIR) $(LEGAL_INFO_DIR) $(REDIST_SOURCES_DIR_TARGET) $(REDIST_SOURCES_DIR_HOST):
 448         @mkdir -p $@
 449
 450 # We make a symlink lib32->lib or lib64->lib as appropriate
 451 # MIPS64/n32 requires lib32 even though it's a 64-bit arch.
 452 ifeq ($(BR2_ARCH_IS_64)$(BR2_MIPS_NABI32),y)
 453 LIB_SYMLINK = lib64
 454 else
 455 LIB_SYMLINK = lib32
 456 endif
 457
 458 $(STAGING_DIR):
 459         @mkdir -p $(STAGING_DIR)/bin
 460         @mkdir -p $(STAGING_DIR)/lib
 461         @ln -snf lib $(STAGING_DIR)/$(LIB_SYMLINK)
 462         @mkdir -p $(STAGING_DIR)/usr/lib
 463         @ln -snf lib $(STAGING_DIR)/usr/$(LIB_SYMLINK)
 464         @mkdir -p $(STAGING_DIR)/usr/include
 465         @mkdir -p $(STAGING_DIR)/usr/bin
 466         @ln -snf $(STAGING_DIR) $(BASE_DIR)/staging
 467
 468 ifeq ($(BR2_ROOTFS_SKELETON_CUSTOM),y)
 469 TARGET_SKELETON = $(BR2_ROOTFS_SKELETON_CUSTOM_PATH)
 470 endif
 471
 472 RSYNC_VCS_EXCLUSIONS = \
 473         --exclude .svn --exclude .git --exclude .hg --exclude .bzr \
 474         --exclude CVS
 475
 476 $(BUILD_DIR)/.root:
 477         mkdir -p $(TARGET_DIR)
 478         rsync -a --ignore-times $(RSYNC_VCS_EXCLUSIONS) \
 479                 --chmod=Du+w --exclude .empty --exclude '*~' \
 480                 $(TARGET_SKELETON)/ $(TARGET_DIR)/
 481         $(INSTALL) -m 0644 support/misc/target-dir-warning.txt $(TARGET_DIR_WARNING_FILE)
 482         @ln -snf lib $(TARGET_DIR)/$(LIB_SYMLINK)
 483         @mkdir -p $(TARGET_DIR)/usr
 484         @ln -snf lib $(TARGET_DIR)/usr/$(LIB_SYMLINK)
 485         touch $@
 486
 487 $(TARGET_DIR): $(BUILD_DIR)/.root
 488
 489 STRIP_FIND_CMD = find $(TARGET_DIR)
 490 ifneq (,$(call qstrip,$(BR2_STRIP_EXCLUDE_DIRS)))
 491 STRIP_FIND_CMD += \( $(call finddirclauses,$(TARGET_DIR),$(call qstrip,$(BR2_STRIP_EXCLUDE_DIRS))) \) -prune -o
 492 endif
 493 STRIP_FIND_CMD += -type f \( -perm /111 -o -name '*.so*' \)
 494 # file exclusions:
 495 # - libpthread.so: a non-stripped libpthread shared library is needed for
 496 #   proper debugging of pthread programs using gdb.
 497 # - kernel modules (*.ko): do not function properly when stripped like normal
 498 #   applications and libraries. Normally kernel modules are already excluded
 499 #   by the executable permission check above, so the explicit exclusion is only
 500 #   done for kernel modules with incorrect permissions.
 501 STRIP_FIND_CMD += -not \( $(call findfileclauses,libpthread*.so* *.ko $(call qstrip,$(BR2_STRIP_EXCLUDE_FILES))) \) -print
 502
 503 ifeq ($(BR2_ECLIPSE_REGISTER),y)
 504 define TOOLCHAIN_ECLIPSE_REGISTER
 505         ./support/scripts/eclipse-register-toolchain `readlink -f $(O)` \
 506                 $(notdir $(TARGET_CROSS)) $(BR2_ARCH)
 507 endef
 508 TARGET_FINALIZE_HOOKS += TOOLCHAIN_ECLIPSE_REGISTER
 509 endif
 510
 511 # Generate locale data. Basically, we call the localedef program
 512 # (built by the host-localedef package) for each locale. The input
 513 # data comes preferably from the toolchain, or if the toolchain does
 514 # not have them (Linaro toolchains), we use the ones available on the
 515 # host machine.
 516 ifeq ($(BR2_TOOLCHAIN_USES_GLIBC),y)
 517 GENERATE_LOCALE = $(call qstrip,$(BR2_GENERATE_LOCALE))
 518 ifneq ($(GENERATE_LOCALE),)
 519 TARGETS += host-localedef
 520
 521 define GENERATE_LOCALES
 522         $(Q)mkdir -p $(TARGET_DIR)/usr/lib/locale/
 523         $(Q)for locale in $(GENERATE_LOCALE) ; do \
 524                 inputfile=`echo $${locale} | cut -f1 -d'.'` ; \
 525                 charmap=`echo $${locale} | cut -f2 -d'.' -s` ; \
 526                 if test -z "$${charmap}" ; then \
 527                         charmap="UTF-8" ; \
 528                 fi ; \
 529                 echo "Generating locale $${inputfile}.$${charmap}" ; \
 530                 I18NPATH=$(STAGING_DIR)/usr/share/i18n:/usr/share/i18n \
 531                 $(HOST_DIR)/usr/bin/localedef \
 532                         --prefix=$(TARGET_DIR) \
 533                         --$(call LOWERCASE,$(BR2_ENDIAN))-endian \
 534                         -i $${inputfile} -f $${charmap} \
 535                         $${locale} ; \
 536         done
 537 endef
 538 TARGET_FINALIZE_HOOKS += GENERATE_LOCALES
 539 endif
 540 endif
 541
 542 ifeq ($(BR2_ENABLE_LOCALE_PURGE),y)
 543 LOCALE_WHITELIST = $(BUILD_DIR)/locales.nopurge
 544 LOCALE_NOPURGE = $(call qstrip,$(BR2_ENABLE_LOCALE_WHITELIST))
 545
 546 define PURGE_LOCALES
 547         rm -f $(LOCALE_WHITELIST)
 548         for i in $(LOCALE_NOPURGE) locale-archive; do echo $$i >> $(LOCALE_WHITELIST); done
 549
 550         for dir in $(wildcard $(addprefix $(TARGET_DIR),/usr/share/locale /usr/share/X11/locale /usr/man /usr/share/man /usr/lib/locale)); \
 551         do \
 552                 for lang in $$(cd $$dir; ls .|grep -v man); \
 553                 do \
 554                         grep -qx $$lang $(LOCALE_WHITELIST) || rm -rf $$dir/$$lang; \
 555                 done; \
 556         done
 557 endef
 558 TARGET_FINALIZE_HOOKS += PURGE_LOCALES
 559 endif
 560
 561 $(TARGETS_ROOTFS): target-finalize
 562
 563 target-finalize: $(TARGETS)
 564         @$(call MESSAGE,"Finalizing target directory")
 565         $(foreach hook,$(TARGET_FINALIZE_HOOKS),$($(hook))$(sep))
 566         rm -rf $(TARGET_DIR)/usr/include $(TARGET_DIR)/usr/share/aclocal \
 567                 $(TARGET_DIR)/usr/lib/pkgconfig $(TARGET_DIR)/usr/share/pkgconfig \
 568                 $(TARGET_DIR)/usr/lib/cmake $(TARGET_DIR)/usr/share/cmake
 569         find $(TARGET_DIR)/usr/{lib,share}/ -name '*.cmake' -print0 | xargs -0 rm -f
 570         find $(TARGET_DIR)/lib \( -name '*.a' -o -name '*.la' \) -print0 | xargs -0 rm -f
 571         find $(TARGET_DIR)/usr/lib \( -name '*.a' -o -name '*.la' \) -print0 | xargs -0 rm -f
 572 ifneq ($(BR2_PACKAGE_GDB),y)
 573         rm -rf $(TARGET_DIR)/usr/share/gdb
 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 $(STRIPCMD) 2>/dev/null || true
 581         if test -d $(TARGET_DIR)/lib/modules; then \
 582                 find $(TARGET_DIR)/lib/modules -type f -name '*.ko' | \
 583                 xargs -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 auxilliary 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         else \
 602                 /sbin/ldconfig -r $(TARGET_DIR); \
 603         fi
 604         ( \
 605                 echo "NAME=Buildroot"; \
 606                 echo "VERSION=$(BR2_VERSION_FULL)"; \
 607                 echo "ID=buildroot"; \
 608                 echo "VERSION_ID=$(BR2_VERSION)"; \
 609                 echo "PRETTY_NAME=\"Buildroot $(BR2_VERSION)\"" \
 610         ) >  $(TARGET_DIR)/etc/os-release
 611
 612         @$(foreach d, $(call qstrip,$(BR2_ROOTFS_OVERLAY)), \
 613                 $(call MESSAGE,"Copying overlay $(d)"); \
 614                 rsync -a --ignore-times $(RSYNC_VCS_EXCLUSIONS) \
 615                         --chmod=Du+w --exclude .empty --exclude '*~' \
 616                         $(d)/ $(TARGET_DIR)$(sep))
 617
 618         @$(foreach s, $(call qstrip,$(BR2_ROOTFS_POST_BUILD_SCRIPT)), \
 619                 $(call MESSAGE,"Executing post-build script $(s)"); \
 620                 $(EXTRA_ENV) $(s) $(TARGET_DIR) $(call qstrip,$(BR2_ROOTFS_POST_SCRIPT_ARGS))$(sep))
 621
 622 target-post-image: $(TARGETS_ROOTFS) target-finalize
 623         @$(foreach s, $(call qstrip,$(BR2_ROOTFS_POST_IMAGE_SCRIPT)), \
 624                 $(call MESSAGE,"Executing post-image script $(s)"); \
 625                 $(EXTRA_ENV) $(s) $(BINARIES_DIR) $(call qstrip,$(BR2_ROOTFS_POST_SCRIPT_ARGS))$(sep))
 626
 627 source: $(TARGETS_SOURCE) $(HOST_SOURCE)
 628
 629 external-deps:
 630         @$(MAKE1) -Bs DL_MODE=SHOW_EXTERNAL_DEPS $(EXTRAMAKEARGS) source | sort -u
 631
 632 legal-info-clean:
 633         @rm -fr $(LEGAL_INFO_DIR)
 634
 635 legal-info-prepare: $(LEGAL_INFO_DIR)
 636         @$(call MESSAGE,"Collecting legal info")
 637         @$(call legal-license-file,buildroot,COPYING,COPYING,HOST)
 638         @$(call legal-manifest,PACKAGE,VERSION,LICENSE,LICENSE FILES,SOURCE ARCHIVE,SOURCE SITE,TARGET)
 639         @$(call legal-manifest,PACKAGE,VERSION,LICENSE,LICENSE FILES,SOURCE ARCHIVE,SOURCE SITE,HOST)
 640         @$(call legal-manifest,buildroot,$(BR2_VERSION_FULL),GPLv2+,COPYING,not saved,not saved,HOST)
 641         @$(call legal-warning,the Buildroot source code has not been saved)
 642         @$(call legal-warning,the toolchain has not been saved)
 643         @cp $(BR2_CONFIG) $(LEGAL_INFO_DIR)/buildroot.config
 644
 645 legal-info: dirs legal-info-clean legal-info-prepare $(TARGETS_LEGAL_INFO) \
 646                 $(REDIST_SOURCES_DIR_TARGET) $(REDIST_SOURCES_DIR_HOST)
 647         @cat support/legal-info/README.header >>$(LEGAL_REPORT)
 648         @if [ -r $(LEGAL_WARNINGS) ]; then \
 649                 cat support/legal-info/README.warnings-header \
 650                         $(LEGAL_WARNINGS) >>$(LEGAL_REPORT); \
 651                 cat $(LEGAL_WARNINGS); fi
 652         @echo "Legal info produced in $(LEGAL_INFO_DIR)"
 653         @rm -f $(LEGAL_WARNINGS)
 654
 655 show-targets:
 656         @echo $(HOST_DEPS) $(TARGETS_HOST_DEPS) $(TARGETS) $(TARGETS_ROOTFS)
 657
 658 graph-build: $(O)/build/build-time.log
 659         @install -d $(O)/graphs
 660         $(foreach o,name build duration,./support/scripts/graph-build-time \
 661                                         --type=histogram --order=$(o) --input=$(<) \
 662                                         --output=$(O)/graphs/build.hist-$(o).$(BR_GRAPH_OUT) \
 663                                         $(if $(BR2_GRAPH_ALT),--alternate-colors)$(sep))
 664         $(foreach t,packages steps,./support/scripts/graph-build-time \
 665                                    --type=pie-$(t) --input=$(<) \
 666                                    --output=$(O)/graphs/build.pie-$(t).$(BR_GRAPH_OUT) \
 667                                    $(if $(BR2_GRAPH_ALT),--alternate-colors)$(sep))
 668
 669 graph-depends-requirements:
 670         @dot -? >/dev/null 2>&1 || \
 671                 { echo "ERROR: The 'dot' program from Graphviz is needed for graph-depends" >&2; exit 1; }
 672
 673 graph-depends: graph-depends-requirements
 674         @$(INSTALL) -d $(O)/graphs
 675         @cd "$(CONFIG_DIR)"; \
 676         $(TOPDIR)/support/scripts/graph-depends $(BR2_GRAPH_DEPS_OPTS) \
 677         |tee $(BASE_DIR)/graphs/$(@).dot \
 678         |dot $(BR2_GRAPH_DOT_OPTS) -T$(BR_GRAPH_OUT) -o $(BASE_DIR)/graphs/$(@).$(BR_GRAPH_OUT)
 679
 680 else # ifeq ($(BR2_HAVE_DOT_CONFIG),y)
 681
 682 all: menuconfig
 683
 684 endif # ifeq ($(BR2_HAVE_DOT_CONFIG),y)
 685
 686 # configuration
 687 # ---------------------------------------------------------------------------
 688
 689 HOSTCFLAGS = $(CFLAGS_FOR_BUILD)
 690 export HOSTCFLAGS
 691
 692 $(BUILD_DIR)/buildroot-config/%onf:
 693         mkdir -p $(@D)/lxdialog
 694         $(MAKE) CC="$(HOSTCC_NOCCACHE)" HOSTCC="$(HOSTCC_NOCCACHE)" obj=$(@D) -C $(CONFIG) -f Makefile.br $(@F)
 695
 696 DEFCONFIG = $(call qstrip,$(BR2_DEFCONFIG))
 697
 698 # We don't want to fully expand BR2_DEFCONFIG here, so Kconfig will
 699 # recognize that if it's still at its default $(CONFIG_DIR)/defconfig
 700 COMMON_CONFIG_ENV = \
 701         BR2_DEFCONFIG='$(call qstrip,$(value BR2_DEFCONFIG))' \
 702         KCONFIG_AUTOCONFIG=$(BUILD_DIR)/buildroot-config/auto.conf \
 703         KCONFIG_AUTOHEADER=$(BUILD_DIR)/buildroot-config/autoconf.h \
 704         KCONFIG_TRISTATE=$(BUILD_DIR)/buildroot-config/tristate.config \
 705         BR2_CONFIG=$(BR2_CONFIG) \
 706         BR2_EXTERNAL=$(BR2_EXTERNAL)
 707
 708 xconfig: $(BUILD_DIR)/buildroot-config/qconf outputmakefile
 709         @mkdir -p $(BUILD_DIR)/buildroot-config
 710         @$(COMMON_CONFIG_ENV) $< $(CONFIG_CONFIG_IN)
 711
 712 gconfig: $(BUILD_DIR)/buildroot-config/gconf outputmakefile
 713         @mkdir -p $(BUILD_DIR)/buildroot-config
 714         @$(COMMON_CONFIG_ENV) srctree=$(TOPDIR) $< $(CONFIG_CONFIG_IN)
 715
 716 menuconfig: $(BUILD_DIR)/buildroot-config/mconf outputmakefile
 717         @mkdir -p $(BUILD_DIR)/buildroot-config
 718         @$(COMMON_CONFIG_ENV) $< $(CONFIG_CONFIG_IN)
 719
 720 nconfig: $(BUILD_DIR)/buildroot-config/nconf outputmakefile
 721         @mkdir -p $(BUILD_DIR)/buildroot-config
 722         @$(COMMON_CONFIG_ENV) $< $(CONFIG_CONFIG_IN)
 723
 724 config: $(BUILD_DIR)/buildroot-config/conf outputmakefile
 725         @mkdir -p $(BUILD_DIR)/buildroot-config
 726         @$(COMMON_CONFIG_ENV) $< $(CONFIG_CONFIG_IN)
 727
 728 oldconfig: $(BUILD_DIR)/buildroot-config/conf outputmakefile
 729         mkdir -p $(BUILD_DIR)/buildroot-config
 730         @$(COMMON_CONFIG_ENV) $< --oldconfig $(CONFIG_CONFIG_IN)
 731
 732 randconfig: $(BUILD_DIR)/buildroot-config/conf outputmakefile
 733         @mkdir -p $(BUILD_DIR)/buildroot-config
 734         @$(COMMON_CONFIG_ENV) $< --randconfig $(CONFIG_CONFIG_IN)
 735
 736 allyesconfig: $(BUILD_DIR)/buildroot-config/conf outputmakefile
 737         @mkdir -p $(BUILD_DIR)/buildroot-config
 738         @$(COMMON_CONFIG_ENV) $< --allyesconfig $(CONFIG_CONFIG_IN)
 739
 740 allnoconfig: $(BUILD_DIR)/buildroot-config/conf outputmakefile
 741         @mkdir -p $(BUILD_DIR)/buildroot-config
 742         @$(COMMON_CONFIG_ENV) $< --allnoconfig $(CONFIG_CONFIG_IN)
 743
 744 randpackageconfig: $(BUILD_DIR)/buildroot-config/conf outputmakefile
 745         @mkdir -p $(BUILD_DIR)/buildroot-config
 746         @grep -v BR2_PACKAGE_ $(BR2_CONFIG) > $(CONFIG_DIR)/.config.nopkg
 747         @grep '^config BR2_PACKAGE_' Config.in.legacy | \
 748                 while read config pkg; do \
 749                 echo "# $$pkg is not set" >> $(CONFIG_DIR)/.config.nopkg; done
 750         @$(COMMON_CONFIG_ENV) \
 751                 KCONFIG_ALLCONFIG=$(CONFIG_DIR)/.config.nopkg \
 752                 $< --randconfig $(CONFIG_CONFIG_IN)
 753         @rm -f $(CONFIG_DIR)/.config.nopkg
 754
 755 allyespackageconfig: $(BUILD_DIR)/buildroot-config/conf outputmakefile
 756         @mkdir -p $(BUILD_DIR)/buildroot-config
 757         @grep -v BR2_PACKAGE_ $(BR2_CONFIG) > $(CONFIG_DIR)/.config.nopkg
 758         @grep '^config BR2_PACKAGE_' Config.in.legacy | \
 759                 while read config pkg; do \
 760                 echo "# $$pkg is not set" >> $(CONFIG_DIR)/.config.nopkg; done
 761         @$(COMMON_CONFIG_ENV) \
 762                 KCONFIG_ALLCONFIG=$(CONFIG_DIR)/.config.nopkg \
 763                 $< --allyesconfig $(CONFIG_CONFIG_IN)
 764         @rm -f $(CONFIG_DIR)/.config.nopkg
 765
 766 allnopackageconfig: $(BUILD_DIR)/buildroot-config/conf outputmakefile
 767         @mkdir -p $(BUILD_DIR)/buildroot-config
 768         @grep -v BR2_PACKAGE_ $(BR2_CONFIG) > $(CONFIG_DIR)/.config.nopkg
 769         @$(COMMON_CONFIG_ENV) \
 770                 KCONFIG_ALLCONFIG=$(CONFIG_DIR)/.config.nopkg \
 771                 $< --allnoconfig $(CONFIG_CONFIG_IN)
 772         @rm -f $(CONFIG_DIR)/.config.nopkg
 773
 774 silentoldconfig: $(BUILD_DIR)/buildroot-config/conf outputmakefile
 775         @mkdir -p $(BUILD_DIR)/buildroot-config
 776         $(COMMON_CONFIG_ENV) $< --silentoldconfig $(CONFIG_CONFIG_IN)
 777
 778 olddefconfig: $(BUILD_DIR)/buildroot-config/conf outputmakefile
 779         @mkdir -p $(BUILD_DIR)/buildroot-config
 780         $(COMMON_CONFIG_ENV) $< --olddefconfig $(CONFIG_CONFIG_IN)
 781
 782 defconfig: $(BUILD_DIR)/buildroot-config/conf outputmakefile
 783         @mkdir -p $(BUILD_DIR)/buildroot-config
 784         @$(COMMON_CONFIG_ENV) $< --defconfig$(if $(DEFCONFIG),=$(DEFCONFIG)) $(CONFIG_CONFIG_IN)
 785
 786 %_defconfig: $(BUILD_DIR)/buildroot-config/conf $(TOPDIR)/configs/%_defconfig outputmakefile
 787         @mkdir -p $(BUILD_DIR)/buildroot-config
 788         @$(COMMON_CONFIG_ENV) $< --defconfig=$(TOPDIR)/configs/$@ $(CONFIG_CONFIG_IN)
 789
 790 %_defconfig: $(BUILD_DIR)/buildroot-config/conf $(BR2_EXTERNAL)/configs/%_defconfig outputmakefile
 791         @mkdir -p $(BUILD_DIR)/buildroot-config
 792         @$(COMMON_CONFIG_ENV) $< --defconfig=$(BR2_EXTERNAL)/configs/$@ $(CONFIG_CONFIG_IN)
 793
 794 savedefconfig: $(BUILD_DIR)/buildroot-config/conf outputmakefile
 795         @mkdir -p $(BUILD_DIR)/buildroot-config
 796         @$(COMMON_CONFIG_ENV) $< \
 797                 --savedefconfig=$(if $(DEFCONFIG),$(DEFCONFIG),$(CONFIG_DIR)/defconfig) \
 798                 $(CONFIG_CONFIG_IN)
 799
 800 # check if download URLs are outdated
 801 source-check:
 802         $(MAKE1) DL_MODE=SOURCE_CHECK $(EXTRAMAKEARGS) source
 803
 804 .PHONY: defconfig savedefconfig
 805
 806 ################################################################################
 807 #
 808 # Cleanup and misc junk
 809 #
 810 ################################################################################
 811
 812 # outputmakefile generates a Makefile in the output directory, if using a
 813 # separate output directory. This allows convenient use of make in the
 814 # output directory.
 815 outputmakefile:
 816 ifeq ($(NEED_WRAPPER),y)
 817         $(Q)$(TOPDIR)/support/scripts/mkmakefile $(TOPDIR) $(O)
 818 endif
 819
 820 # printvars prints all the variables currently defined in our Makefiles
 821 printvars:
 822         @$(foreach V, \
 823                 $(sort $(.VARIABLES)), \
 824                 $(if $(filter-out environment% default automatic, \
 825                                 $(origin $V)), \
 826                 $(info $V=$($V) ($(value $V)))))
 827
 828 clean:
 829         rm -rf $(TARGET_DIR) $(BINARIES_DIR) $(HOST_DIR) \
 830                 $(BUILD_DIR) $(BASE_DIR)/staging \
 831                 $(LEGAL_INFO_DIR)
 832
 833 distclean: clean
 834 ifeq ($(DL_DIR),$(TOPDIR)/dl)
 835         rm -rf $(DL_DIR)
 836 endif
 837 ifeq ($(O),output)
 838         rm -rf $(O)
 839 endif
 840         rm -rf $(BR2_CONFIG) $(CONFIG_DIR)/.config.old $(CONFIG_DIR)/.auto.deps
 841
 842 help:
 843         @echo 'Cleaning:'
 844         @echo '  clean                  - delete all files created by build'
 845         @echo '  distclean              - delete all non-source files (including .config)'
 846         @echo
 847         @echo 'Build:'
 848         @echo '  all                    - make world'
 849         @echo '  toolchain              - build toolchain'
 850         @echo
 851         @echo 'Configuration:'
 852         @echo '  menuconfig             - interactive curses-based configurator'
 853         @echo '  nconfig                - interactive ncurses-based configurator'
 854         @echo '  xconfig                - interactive Qt-based configurator'
 855         @echo '  gconfig                - interactive GTK-based configurator'
 856         @echo '  oldconfig              - resolve any unresolved symbols in .config'
 857         @echo '  silentoldconfig        - Same as oldconfig, but quietly, additionally update deps'
 858         @echo '  olddefconfig           - Same as silentoldconfig but sets new symbols to their default value'
 859         @echo '  randconfig             - New config with random answer to all options'
 860         @echo '  defconfig              - New config with default answer to all options'
 861         @echo '                             BR2_DEFCONFIG, if set, is used as input'
 862         @echo '  savedefconfig          - Save current config as ./defconfig (minimal config)'
 863         @echo '  allyesconfig           - New config where all options are accepted with yes'
 864         @echo '  allnoconfig            - New config where all options are answered with no'
 865         @echo '  randpackageconfig      - New config with random answer to package options'
 866         @echo '  allyespackageconfig    - New config where pkg options are accepted with yes'
 867         @echo '  allnopackageconfig     - New config where package options are answered with no'
 868 ifeq ($(BR2_PACKAGE_BUSYBOX),y)
 869         @echo '  busybox-menuconfig     - Run BusyBox menuconfig'
 870 endif
 871 ifeq ($(BR2_LINUX_KERNEL),y)
 872         @echo '  linux-menuconfig       - Run Linux kernel menuconfig'
 873         @echo '  linux-savedefconfig    - Run Linux kernel savedefconfig'
 874 endif
 875 ifeq ($(BR2_TOOLCHAIN_BUILDROOT),y)
 876         @echo '  uclibc-menuconfig      - Run uClibc menuconfig'
 877 endif
 878 ifeq ($(BR2_TARGET_BAREBOX),y)
 879         @echo '  barebox-menuconfig     - Run barebox menuconfig'
 880         @echo '  barebox-savedefconfig  - Run barebox savedefconfig'
 881 endif
 882         @echo
 883         @echo 'Documentation:'
 884         @echo '  manual                 - build manual in all formats'
 885         @echo '  manual-html            - build manual in HTML'
 886         @echo '  manual-split-html      - build manual in split HTML'
 887         @echo '  manual-pdf             - build manual in PDF'
 888         @echo '  manual-text            - build manual in text'
 889         @echo '  manual-epub            - build manual in ePub'
 890         @echo '  graph-build            - generate graphs of the build times'
 891         @echo '  graph-depends          - generate graph of the dependency tree'
 892         @echo
 893         @echo 'Miscellaneous:'
 894         @echo '  source                 - download all sources needed for offline-build'
 895         @echo '  source-check           - check selected packages for valid download URLs'
 896         @echo '  external-deps          - list external packages used'
 897         @echo '  legal-info             - generate info about license compliance'
 898         @echo
 899         @echo '  make V=0|1             - 0 => quiet build (default), 1 => verbose build'
 900         @echo '  make O=dir             - Locate all output files in "dir", including .config'
 901         @echo
 902         @echo 'Built-in configs:'
 903         @$(foreach b, $(sort $(notdir $(wildcard $(TOPDIR)/configs/*_defconfig))), \
 904           printf "  %-35s - Build for %s\\n" $(b) $(b:_defconfig=);)
 905 ifneq ($(wildcard $(BR2_EXTERNAL)/configs/*_defconfig),)
 906         @echo
 907         @echo 'User-provided configs:'
 908         @$(foreach b, $(sort $(notdir $(wildcard $(BR2_EXTERNAL)/configs/*_defconfig))), \
 909           printf "  %-35s - Build for %s\\n" $(b) $(b:_defconfig=);)
 910 endif
 911         @echo
 912         @echo 'For further details, see README, generate the Buildroot manual, or consult'
 913         @echo 'it on-line at http://buildroot.org/docs.html'
 914         @echo
 915
 916 release: OUT = buildroot-$(BR2_VERSION)
 917
 918 # Create release tarballs. We need to fiddle a bit to add the generated
 919 # documentation to the git output
 920 release:
 921         git archive --format=tar --prefix=$(OUT)/ HEAD > $(OUT).tar
 922         $(MAKE) O=$(OUT) manual-html manual-text manual-pdf
 923         tar rf $(OUT).tar $(OUT)
 924         gzip -9 -c < $(OUT).tar > $(OUT).tar.gz
 925         bzip2 -9 -c < $(OUT).tar > $(OUT).tar.bz2
 926         rm -rf $(OUT) $(OUT).tar
 927
 928 print-version:
 929         @echo $(BR2_VERSION_FULL)
 930
 931 include docs/manual/manual.mk
 932 -include $(BR2_EXTERNAL)/docs/*/*.mk
 933
 934 .PHONY: $(noconfig_targets)