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 := 2015.02-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 set to an empty value (e.g. explicitly in command
 127 # line), the .br-external file is removed and we point to
 128 # support/dummy-external. This makes sure we can unconditionally include the
 129 # Config.in and external.mk from the BR2_EXTERNAL directory. In this case,
 130 # override is necessary so the user can clear BR2_EXTERNAL from the command
 131 # line, but the dummy path is still used internally.
 132
 133 BR2_EXTERNAL_FILE = $(BASE_DIR)/.br-external
 134 -include $(BR2_EXTERNAL_FILE)
 135 ifeq ($(BR2_EXTERNAL),)
 136   override BR2_EXTERNAL = support/dummy-external
 137   $(shell rm -f $(BR2_EXTERNAL_FILE))
 138 else
 139   _BR2_EXTERNAL = $(shell cd $(BR2_EXTERNAL) >/dev/null 2>&1 && pwd)
 140   ifeq ($(_BR2_EXTERNAL),)
 141     $(error BR2_EXTERNAL='$(BR2_EXTERNAL)' does not exist, relative to $(TOPDIR))
 142   endif
 143   override BR2_EXTERNAL := $(_BR2_EXTERNAL)
 144   $(shell echo BR2_EXTERNAL ?= $(BR2_EXTERNAL) > $(BR2_EXTERNAL_FILE))
 145 endif
 146
 147 # To make sure the the environment variable overrides the .config option,
 148 # set this before including .config.
 149 ifneq ($(BR2_DL_DIR),)
 150 DL_DIR := $(BR2_DL_DIR)
 151 endif
 152
 153
 154 # Need that early, before we scan packages
 155 # Avoids doing the $(or...) everytime
 156 BR_GRAPH_OUT := $(or $(BR2_GRAPH_OUT),pdf)
 157
 158 BUILD_DIR := $(BASE_DIR)/build
 159 BINARIES_DIR := $(BASE_DIR)/images
 160 TARGET_DIR := $(BASE_DIR)/target
 161 # initial definition so that 'make clean' works for most users, even without
 162 # .config. HOST_DIR will be overwritten later when .config is included.
 163 HOST_DIR := $(BASE_DIR)/host
 164
 165 LEGAL_INFO_DIR = $(BASE_DIR)/legal-info
 166 REDIST_SOURCES_DIR_TARGET = $(LEGAL_INFO_DIR)/sources
 167 REDIST_SOURCES_DIR_HOST = $(LEGAL_INFO_DIR)/host-sources
 168 LICENSE_FILES_DIR_TARGET = $(LEGAL_INFO_DIR)/licenses
 169 LICENSE_FILES_DIR_HOST = $(LEGAL_INFO_DIR)/host-licenses
 170 LEGAL_MANIFEST_CSV_TARGET = $(LEGAL_INFO_DIR)/manifest.csv
 171 LEGAL_MANIFEST_CSV_HOST = $(LEGAL_INFO_DIR)/host-manifest.csv
 172 LEGAL_LICENSES_TXT_TARGET = $(LEGAL_INFO_DIR)/licenses.txt
 173 LEGAL_LICENSES_TXT_HOST = $(LEGAL_INFO_DIR)/host-licenses.txt
 174 LEGAL_WARNINGS = $(LEGAL_INFO_DIR)/.warnings
 175 LEGAL_REPORT = $(LEGAL_INFO_DIR)/README
 176
 177 BR2_CONFIG = $(CONFIG_DIR)/.config
 178
 179 # Pull in the user's configuration file
 180 ifeq ($(filter $(noconfig_targets),$(MAKECMDGOALS)),)
 181 -include $(BR2_CONFIG)
 182 endif
 183
 184 # To put more focus on warnings, be less verbose as default
 185 # Use 'make V=1' to see the full commands
 186 ifdef V
 187   ifeq ("$(origin V)", "command line")
 188     KBUILD_VERBOSE = $(V)
 189   endif
 190 endif
 191 ifndef KBUILD_VERBOSE
 192   KBUILD_VERBOSE = 0
 193 endif
 194
 195 ifeq ($(KBUILD_VERBOSE),1)
 196   quiet =
 197   Q =
 198 ifndef VERBOSE
 199   VERBOSE = 1
 200 endif
 201 else
 202   quiet = quiet_
 203   Q = @
 204 endif
 205
 206 # we want bash as shell
 207 SHELL := $(shell if [ -x "$$BASH" ]; then echo $$BASH; \
 208          else if [ -x /bin/bash ]; then echo /bin/bash; \
 209          else echo sh; fi; fi)
 210
 211 # kconfig uses CONFIG_SHELL
 212 CONFIG_SHELL := $(SHELL)
 213
 214 export SHELL CONFIG_SHELL quiet Q KBUILD_VERBOSE VERBOSE
 215
 216 ifndef HOSTAR
 217 HOSTAR := ar
 218 endif
 219 ifndef HOSTAS
 220 HOSTAS := as
 221 endif
 222 ifndef HOSTCC
 223 HOSTCC := gcc
 224 HOSTCC := $(shell which $(HOSTCC) || type -p $(HOSTCC) || echo gcc)
 225 endif
 226 HOSTCC_NOCCACHE := $(HOSTCC)
 227 ifndef HOSTCXX
 228 HOSTCXX := g++
 229 HOSTCXX := $(shell which $(HOSTCXX) || type -p $(HOSTCXX) || echo g++)
 230 endif
 231 HOSTCXX_NOCCACHE := $(HOSTCXX)
 232 ifndef HOSTFC
 233 HOSTFC := gfortran
 234 endif
 235 ifndef HOSTCPP
 236 HOSTCPP := cpp
 237 endif
 238 ifndef HOSTLD
 239 HOSTLD := ld
 240 endif
 241 ifndef HOSTLN
 242 HOSTLN := ln
 243 endif
 244 ifndef HOSTNM
 245 HOSTNM := nm
 246 endif
 247 ifndef HOSTOBJCOPY
 248 HOSTOBJCOPY := objcopy
 249 endif
 250 ifndef HOSTRANLIB
 251 HOSTRANLIB := ranlib
 252 endif
 253 HOSTAR := $(shell which $(HOSTAR) || type -p $(HOSTAR) || echo ar)
 254 HOSTAS := $(shell which $(HOSTAS) || type -p $(HOSTAS) || echo as)
 255 HOSTFC := $(shell which $(HOSTLD) || type -p $(HOSTLD) || echo || which g77 || type -p g77 || echo gfortran)
 256 HOSTCPP := $(shell which $(HOSTCPP) || type -p $(HOSTCPP) || echo cpp)
 257 HOSTLD := $(shell which $(HOSTLD) || type -p $(HOSTLD) || echo ld)
 258 HOSTLN := $(shell which $(HOSTLN) || type -p $(HOSTLN) || echo ln)
 259 HOSTNM := $(shell which $(HOSTNM) || type -p $(HOSTNM) || echo nm)
 260 HOSTOBJCOPY := $(shell which $(HOSTOBJCOPY) || type -p $(HOSTOBJCOPY) || echo objcopy)
 261 HOSTRANLIB := $(shell which $(HOSTRANLIB) || type -p $(HOSTRANLIB) || echo ranlib)
 262
 263 export HOSTAR HOSTAS HOSTCC HOSTCXX HOSTFC HOSTLD
 264 export HOSTCC_NOCCACHE HOSTCXX_NOCCACHE
 265
 266 # Make sure pkg-config doesn't look outside the buildroot tree
 267 HOST_PKG_CONFIG_PATH := $(PKG_CONFIG_PATH)
 268 unexport PKG_CONFIG_PATH
 269 unexport PKG_CONFIG_SYSROOT_DIR
 270 unexport PKG_CONFIG_LIBDIR
 271
 272 # Having DESTDIR set in the environment confuses the installation
 273 # steps of some packages.
 274 unexport DESTDIR
 275
 276 # Causes breakage with packages that needs host-ruby
 277 unexport RUBYOPT
 278
 279 include package/pkg-utils.mk
 280 include package/doc-asciidoc.mk
 281
 282 ifeq ($(BR2_HAVE_DOT_CONFIG),y)
 283
 284 ################################################################################
 285 #
 286 # Hide troublesome environment variables from sub processes
 287 #
 288 ################################################################################
 289 unexport CROSS_COMPILE
 290 unexport ARCH
 291 unexport CC
 292 unexport CXX
 293 unexport CPP
 294 unexport CFLAGS
 295 unexport CXXFLAGS
 296 unexport GREP_OPTIONS
 297 unexport TAR_OPTIONS
 298 unexport CONFIG_SITE
 299 unexport QMAKESPEC
 300 unexport TERMINFO
 301 unexport MACHINE
 302
 303 GNU_HOST_NAME := $(shell support/gnuconfig/config.guess)
 304
 305 TARGETS :=
 306
 307 # silent mode requested?
 308 QUIET := $(if $(findstring s,$(filter-out --%,$(MAKEFLAGS))),-q)
 309
 310 # Strip off the annoying quoting
 311 ARCH := $(call qstrip,$(BR2_ARCH))
 312
 313 KERNEL_ARCH := $(shell echo "$(ARCH)" | sed -e "s/-.*//" \
 314         -e s/i.86/i386/ -e s/sun4u/sparc64/ \
 315         -e s/arcle/arc/ \
 316         -e s/arceb/arc/ \
 317         -e s/arm.*/arm/ -e s/sa110/arm/ \
 318         -e s/aarch64/arm64/ \
 319         -e s/bfin/blackfin/ \
 320         -e s/parisc64/parisc/ \
 321         -e s/powerpc64.*/powerpc/ \
 322         -e s/ppc.*/powerpc/ -e s/mips.*/mips/ \
 323         -e s/sh.*/sh/ \
 324         -e s/microblazeel/microblaze/)
 325
 326 ZCAT := $(call qstrip,$(BR2_ZCAT))
 327 BZCAT := $(call qstrip,$(BR2_BZCAT))
 328 XZCAT := $(call qstrip,$(BR2_XZCAT))
 329 TAR_OPTIONS = $(call qstrip,$(BR2_TAR_OPTIONS)) -xf
 330
 331 # packages compiled for the host go here
 332 HOST_DIR := $(call qstrip,$(BR2_HOST_DIR))
 333
 334 # Quotes are needed for spaces and all in the original PATH content.
 335 BR_PATH = "$(HOST_DIR)/bin:$(HOST_DIR)/sbin:$(HOST_DIR)/usr/bin:$(HOST_DIR)/usr/sbin:$(PATH)"
 336
 337 TARGET_SKELETON = $(TOPDIR)/system/skeleton
 338
 339 # Location of a file giving a big fat warning that output/target
 340 # should not be used as the root filesystem.
 341 TARGET_DIR_WARNING_FILE = $(TARGET_DIR)/THIS_IS_NOT_YOUR_ROOT_FILESYSTEM
 342
 343 ifeq ($(BR2_CCACHE),y)
 344 CCACHE := $(HOST_DIR)/usr/bin/ccache
 345 BR_CACHE_DIR = $(call qstrip,$(BR2_CCACHE_DIR))
 346 export BR_CACHE_DIR
 347 HOSTCC := $(CCACHE) $(HOSTCC)
 348 HOSTCXX := $(CCACHE) $(HOSTCXX)
 349 endif
 350
 351 # Scripts in support/ or post-build scripts may need to reference
 352 # these locations, so export them so it is easier to use
 353 export BR2_CONFIG
 354 export TARGET_DIR
 355 export STAGING_DIR
 356 export HOST_DIR
 357 export BINARIES_DIR
 358 export BASE_DIR
 359
 360 ################################################################################
 361 #
 362 # You should probably leave this stuff alone unless you know
 363 # what you are doing.
 364 #
 365 ################################################################################
 366
 367 all: world
 368
 369 # Include legacy before the other things, because package .mk files
 370 # may rely on it.
 371 ifneq ($(BR2_DEPRECATED),y)
 372 include Makefile.legacy
 373 endif
 374
 375 include package/Makefile.in
 376 include support/dependencies/dependencies.mk
 377
 378 # We also need the various per-package makefiles, which also add
 379 # each selected package to TARGETS if that package was selected
 380 # in the .config file.
 381 include toolchain/*.mk
 382 include toolchain/*/*.mk
 383
 384 # Include the package override file if one has been provided in the
 385 # configuration.
 386 PACKAGE_OVERRIDE_FILE = $(call qstrip,$(BR2_PACKAGE_OVERRIDE_FILE))
 387 ifneq ($(PACKAGE_OVERRIDE_FILE),)
 388 -include $(PACKAGE_OVERRIDE_FILE)
 389 endif
 390
 391 include $(sort $(wildcard package/*/*.mk))
 392
 393 include boot/common.mk
 394 include linux/linux.mk
 395 include system/system.mk
 396 include fs/common.mk
 397
 398 include $(BR2_EXTERNAL)/external.mk
 399
 400 TARGETS_SOURCE := $(patsubst %,%-source,$(TARGETS))
 401 TARGETS_DIRCLEAN := $(patsubst %,%-dirclean,$(TARGETS))
 402
 403 # host-* dependencies have to be handled specially, as those aren't
 404 # visible in Kconfig and hence not added to a variable like TARGETS.
 405 # instead, find all the host-* targets listed in each <PKG>_DEPENDENCIES
 406 # variable for each enabled target.
 407 # Notice: this only works for newstyle gentargets/autotargets packages
 408 TARGETS_HOST_DEPS = $(sort $(filter host-%,$(foreach dep,\
 409                 $(addsuffix _DEPENDENCIES,\
 410                         $(call UPPERCASE,$(TARGETS) $(TARGETS_ROOTFS))),\
 411                 $($(dep)))))
 412 # Host packages can in turn have their own dependencies. Likewise find
 413 # all the package names listed in the HOST_<PKG>_DEPENDENCIES for each
 414 # host package found above. Ideally this should be done recursively until
 415 # no more packages are found, but that's hard to do in make, so limit to
 416 # 1 level for now.
 417 HOST_DEPS = $(sort $(foreach dep,\
 418                 $(addsuffix _DEPENDENCIES,$(call UPPERCASE,$(TARGETS_HOST_DEPS))),\
 419                 $($(dep))))
 420 HOST_SOURCE += $(addsuffix -source,$(sort $(TARGETS_HOST_DEPS) $(HOST_DEPS)))
 421
 422 TARGETS_LEGAL_INFO := $(patsubst %,%-legal-info,\
 423                 $(TARGETS) $(TARGETS_HOST_DEPS) $(HOST_DEPS))
 424
 425 dirs: $(BUILD_DIR) $(STAGING_DIR) $(TARGET_DIR) \
 426         $(HOST_DIR) $(BINARIES_DIR)
 427
 428 $(BUILD_DIR)/buildroot-config/auto.conf: $(BR2_CONFIG)
 429         $(MAKE1) $(EXTRAMAKEARGS) HOSTCC="$(HOSTCC_NOCCACHE)" HOSTCXX="$(HOSTCXX_NOCCACHE)" silentoldconfig
 430
 431 prepare: $(BUILD_DIR)/buildroot-config/auto.conf
 432
 433 world: target-post-image
 434
 435 .PHONY: all world toolchain dirs clean distclean source outputmakefile \
 436         legal-info legal-info-prepare legal-info-clean printvars \
 437         target-finalize target-post-image \
 438         $(TARGETS) $(TARGETS_ROOTFS) \
 439         $(TARGETS_DIRCLEAN) $(TARGETS_SOURCE) $(TARGETS_LEGAL_INFO) \
 440         $(BUILD_DIR) $(STAGING_DIR) $(TARGET_DIR) \
 441         $(HOST_DIR) $(BINARIES_DIR)
 442
 443 ################################################################################
 444 #
 445 # staging and target directories do NOT list these as
 446 # dependencies anywhere else
 447 #
 448 ################################################################################
 449 $(BUILD_DIR) $(HOST_DIR) $(BINARIES_DIR) $(LEGAL_INFO_DIR) $(REDIST_SOURCES_DIR_TARGET) $(REDIST_SOURCES_DIR_HOST):
 450         @mkdir -p $@
 451
 452 # We make a symlink lib32->lib or lib64->lib as appropriate
 453 # MIPS64/n32 requires lib32 even though it's a 64-bit arch.
 454 ifeq ($(BR2_ARCH_IS_64)$(BR2_MIPS_NABI32),y)
 455 LIB_SYMLINK = lib64
 456 else
 457 LIB_SYMLINK = lib32
 458 endif
 459
 460 $(STAGING_DIR):
 461         @mkdir -p $(STAGING_DIR)/bin
 462         @mkdir -p $(STAGING_DIR)/lib
 463         @ln -snf lib $(STAGING_DIR)/$(LIB_SYMLINK)
 464         @mkdir -p $(STAGING_DIR)/usr/lib
 465         @ln -snf lib $(STAGING_DIR)/usr/$(LIB_SYMLINK)
 466         @mkdir -p $(STAGING_DIR)/usr/include
 467         @mkdir -p $(STAGING_DIR)/usr/bin
 468         @ln -snf $(STAGING_DIR) $(BASE_DIR)/staging
 469
 470 ifeq ($(BR2_ROOTFS_SKELETON_CUSTOM),y)
 471 TARGET_SKELETON = $(BR2_ROOTFS_SKELETON_CUSTOM_PATH)
 472 endif
 473
 474 RSYNC_VCS_EXCLUSIONS = \
 475         --exclude .svn --exclude .git --exclude .hg --exclude .bzr \
 476         --exclude CVS
 477
 478 $(BUILD_DIR)/.root:
 479         mkdir -p $(TARGET_DIR)
 480         rsync -a --ignore-times $(RSYNC_VCS_EXCLUSIONS) \
 481                 --chmod=Du+w --exclude .empty --exclude '*~' \
 482                 $(TARGET_SKELETON)/ $(TARGET_DIR)/
 483         $(INSTALL) -m 0644 support/misc/target-dir-warning.txt $(TARGET_DIR_WARNING_FILE)
 484         @ln -snf lib $(TARGET_DIR)/$(LIB_SYMLINK)
 485         @mkdir -p $(TARGET_DIR)/usr
 486         @ln -snf lib $(TARGET_DIR)/usr/$(LIB_SYMLINK)
 487         touch $@
 488
 489 $(TARGET_DIR): $(BUILD_DIR)/.root
 490
 491 STRIP_FIND_CMD = find $(TARGET_DIR)
 492 ifneq (,$(call qstrip,$(BR2_STRIP_EXCLUDE_DIRS)))
 493 STRIP_FIND_CMD += \( $(call finddirclauses,$(TARGET_DIR),$(call qstrip,$(BR2_STRIP_EXCLUDE_DIRS))) \) -prune -o
 494 endif
 495 STRIP_FIND_CMD += -type f \( -perm /111 -o -name '*.so*' \)
 496 # file exclusions:
 497 # - libpthread.so: a non-stripped libpthread shared library is needed for
 498 #   proper debugging of pthread programs using gdb.
 499 # - kernel modules (*.ko): do not function properly when stripped like normal
 500 #   applications and libraries. Normally kernel modules are already excluded
 501 #   by the executable permission check above, so the explicit exclusion is only
 502 #   done for kernel modules with incorrect permissions.
 503 STRIP_FIND_CMD += -not \( $(call findfileclauses,libpthread*.so* *.ko $(call qstrip,$(BR2_STRIP_EXCLUDE_FILES))) \) -print
 504
 505 ifeq ($(BR2_ECLIPSE_REGISTER),y)
 506 define TOOLCHAIN_ECLIPSE_REGISTER
 507         ./support/scripts/eclipse-register-toolchain `readlink -f $(O)` \
 508                 $(notdir $(TARGET_CROSS)) $(BR2_ARCH)
 509 endef
 510 TARGET_FINALIZE_HOOKS += TOOLCHAIN_ECLIPSE_REGISTER
 511 endif
 512
 513 # Generate locale data. Basically, we call the localedef program
 514 # (built by the host-localedef package) for each locale. The input
 515 # data comes preferably from the toolchain, or if the toolchain does
 516 # not have them (Linaro toolchains), we use the ones available on the
 517 # host machine.
 518 ifeq ($(BR2_TOOLCHAIN_USES_GLIBC),y)
 519 GLIBC_GENERATE_LOCALES = $(call qstrip,$(BR2_GENERATE_LOCALE))
 520 ifneq ($(GLIBC_GENERATE_LOCALES),)
 521 TARGETS += host-localedef
 522
 523 define GENERATE_GLIBC_LOCALES
 524         $(Q)mkdir -p $(TARGET_DIR)/usr/lib/locale/
 525         $(Q)for locale in $(GLIBC_GENERATE_LOCALES) ; do \
 526                 inputfile=`echo $${locale} | cut -f1 -d'.'` ; \
 527                 charmap=`echo $${locale} | cut -f2 -d'.' -s` ; \
 528                 if test -z "$${charmap}" ; then \
 529                         charmap="UTF-8" ; \
 530                 fi ; \
 531                 echo "Generating locale $${inputfile}.$${charmap}" ; \
 532                 I18NPATH=$(STAGING_DIR)/usr/share/i18n:/usr/share/i18n \
 533                 $(HOST_DIR)/usr/bin/localedef \
 534                         --prefix=$(TARGET_DIR) \
 535                         --$(call LOWERCASE,$(BR2_ENDIAN))-endian \
 536                         -i $${inputfile} -f $${charmap} \
 537                         $${locale} ; \
 538         done
 539 endef
 540 TARGET_FINALIZE_HOOKS += GENERATE_GLIBC_LOCALES
 541 endif
 542 endif
 543
 544 ifeq ($(BR2_ENABLE_LOCALE_PURGE),y)
 545 LOCALE_WHITELIST = $(BUILD_DIR)/locales.nopurge
 546 LOCALE_NOPURGE = $(call qstrip,$(BR2_ENABLE_LOCALE_WHITELIST))
 547
 548 define PURGE_LOCALES
 549         rm -f $(LOCALE_WHITELIST)
 550         for i in $(LOCALE_NOPURGE) locale-archive; do echo $$i >> $(LOCALE_WHITELIST); done
 551
 552         for dir in $(wildcard $(addprefix $(TARGET_DIR),/usr/share/locale /usr/share/X11/locale /usr/man /usr/share/man /usr/lib/locale)); \
 553         do \
 554                 for lang in $$(cd $$dir; ls .|grep -v man); \
 555                 do \
 556                         grep -qx $$lang $(LOCALE_WHITELIST) || rm -rf $$dir/$$lang; \
 557                 done; \
 558         done
 559 endef
 560 TARGET_FINALIZE_HOOKS += PURGE_LOCALES
 561 endif
 562
 563 $(TARGETS_ROOTFS): target-finalize
 564
 565 target-finalize: $(TARGETS)
 566         @$(call MESSAGE,"Finalizing target directory")
 567         $(foreach hook,$(TARGET_FINALIZE_HOOKS),$($(hook))$(sep))
 568         rm -rf $(TARGET_DIR)/usr/include $(TARGET_DIR)/usr/share/aclocal \
 569                 $(TARGET_DIR)/usr/lib/pkgconfig $(TARGET_DIR)/usr/share/pkgconfig \
 570                 $(TARGET_DIR)/usr/lib/cmake $(TARGET_DIR)/usr/share/cmake
 571         find $(TARGET_DIR)/usr/{lib,share}/ -name '*.cmake' -print0 | xargs -0 rm -f
 572         find $(TARGET_DIR)/lib \( -name '*.a' -o -name '*.la' \) -print0 | xargs -0 rm -f
 573         find $(TARGET_DIR)/usr/lib \( -name '*.a' -o -name '*.la' \) -print0 | xargs -0 rm -f
 574 ifneq ($(BR2_PACKAGE_GDB),y)
 575         rm -rf $(TARGET_DIR)/usr/share/gdb
 576 endif
 577         rm -rf $(TARGET_DIR)/usr/man $(TARGET_DIR)/usr/share/man
 578         rm -rf $(TARGET_DIR)/usr/info $(TARGET_DIR)/usr/share/info
 579         rm -rf $(TARGET_DIR)/usr/doc $(TARGET_DIR)/usr/share/doc
 580         rm -rf $(TARGET_DIR)/usr/share/gtk-doc
 581         -rmdir $(TARGET_DIR)/usr/share 2>/dev/null
 582         $(STRIP_FIND_CMD) | xargs $(STRIPCMD) 2>/dev/null || true
 583         if test -d $(TARGET_DIR)/lib/modules; then \
 584                 find $(TARGET_DIR)/lib/modules -type f -name '*.ko' | \
 585                 xargs -r $(KSTRIPCMD); fi
 586
 587 # See http://sourceware.org/gdb/wiki/FAQ, "GDB does not see any threads
 588 # besides the one in which crash occurred; or SIGTRAP kills my program when
 589 # I set a breakpoint"
 590 ifeq ($(BR2_TOOLCHAIN_HAS_THREADS),y)
 591         find $(TARGET_DIR)/lib -type f -name 'libpthread*.so*' | \
 592                 xargs -r $(STRIPCMD) $(STRIP_STRIP_DEBUG)
 593 endif
 594
 595         mkdir -p $(TARGET_DIR)/etc
 596         # Mandatory configuration file and auxilliary cache directory
 597         # for recent versions of ldconfig
 598         touch $(TARGET_DIR)/etc/ld.so.conf
 599         mkdir -p $(TARGET_DIR)/var/cache/ldconfig
 600         if [ -x "$(TARGET_CROSS)ldconfig" ]; \
 601         then \
 602                 $(TARGET_CROSS)ldconfig -r $(TARGET_DIR); \
 603         else \
 604                 /sbin/ldconfig -r $(TARGET_DIR); \
 605         fi
 606         ( \
 607                 echo "NAME=Buildroot"; \
 608                 echo "VERSION=$(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=Du+w --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: $(TARGETS_SOURCE) $(HOST_SOURCE)
 630
 631 external-deps:
 632         @$(MAKE1) -Bs DL_MODE=SHOW_EXTERNAL_DEPS $(EXTRAMAKEARGS) source | sort -u
 633
 634 legal-info-clean:
 635         @rm -fr $(LEGAL_INFO_DIR)
 636
 637 legal-info-prepare: $(LEGAL_INFO_DIR)
 638         @$(call MESSAGE,"Collecting legal info")
 639         @$(call legal-license-file,buildroot,COPYING,COPYING,HOST)
 640         @$(call legal-manifest,PACKAGE,VERSION,LICENSE,LICENSE FILES,SOURCE ARCHIVE,SOURCE SITE,TARGET)
 641         @$(call legal-manifest,PACKAGE,VERSION,LICENSE,LICENSE FILES,SOURCE ARCHIVE,SOURCE SITE,HOST)
 642         @$(call legal-manifest,buildroot,$(BR2_VERSION_FULL),GPLv2+,COPYING,not saved,not saved,HOST)
 643         @$(call legal-warning,the Buildroot source code has not been saved)
 644         @$(call legal-warning,the toolchain has not been saved)
 645         @cp $(BR2_CONFIG) $(LEGAL_INFO_DIR)/buildroot.config
 646
 647 legal-info: dirs legal-info-clean legal-info-prepare $(TARGETS_LEGAL_INFO) \
 648                 $(REDIST_SOURCES_DIR_TARGET) $(REDIST_SOURCES_DIR_HOST)
 649         @cat support/legal-info/README.header >>$(LEGAL_REPORT)
 650         @if [ -r $(LEGAL_WARNINGS) ]; then \
 651                 cat support/legal-info/README.warnings-header \
 652                         $(LEGAL_WARNINGS) >>$(LEGAL_REPORT); \
 653                 cat $(LEGAL_WARNINGS); fi
 654         @echo "Legal info produced in $(LEGAL_INFO_DIR)"
 655         @rm -f $(LEGAL_WARNINGS)
 656
 657 show-targets:
 658         @echo $(HOST_DEPS) $(TARGETS_HOST_DEPS) $(TARGETS) $(TARGETS_ROOTFS)
 659
 660 graph-build: $(O)/build/build-time.log
 661         @install -d $(O)/graphs
 662         $(foreach o,name build duration,./support/scripts/graph-build-time \
 663                                         --type=histogram --order=$(o) --input=$(<) \
 664                                         --output=$(O)/graphs/build.hist-$(o).$(BR_GRAPH_OUT) \
 665                                         $(if $(BR2_GRAPH_ALT),--alternate-colors)$(sep))
 666         $(foreach t,packages steps,./support/scripts/graph-build-time \
 667                                    --type=pie-$(t) --input=$(<) \
 668                                    --output=$(O)/graphs/build.pie-$(t).$(BR_GRAPH_OUT) \
 669                                    $(if $(BR2_GRAPH_ALT),--alternate-colors)$(sep))
 670
 671 graph-depends-requirements:
 672         @dot -? >/dev/null 2>&1 || \
 673                 { echo "ERROR: The 'dot' program from Graphviz is needed for graph-depends" >&2; exit 1; }
 674
 675 graph-depends: graph-depends-requirements
 676         @$(INSTALL) -d $(O)/graphs
 677         @cd "$(CONFIG_DIR)"; \
 678         $(TOPDIR)/support/scripts/graph-depends $(BR2_GRAPH_DEPS_OPTS) \
 679         |tee $(BASE_DIR)/graphs/$(@).dot \
 680         |dot $(BR2_GRAPH_DOT_OPTS) -T$(BR_GRAPH_OUT) -o $(BASE_DIR)/graphs/$(@).$(BR_GRAPH_OUT)
 681
 682 else # ifeq ($(BR2_HAVE_DOT_CONFIG),y)
 683
 684 all: menuconfig
 685
 686 endif # ifeq ($(BR2_HAVE_DOT_CONFIG),y)
 687
 688 # configuration
 689 # ---------------------------------------------------------------------------
 690
 691 HOSTCFLAGS = $(CFLAGS_FOR_BUILD)
 692 export HOSTCFLAGS
 693
 694 $(BUILD_DIR)/buildroot-config/%onf:
 695         mkdir -p $(@D)/lxdialog
 696         PKG_CONFIG_PATH="$(HOST_PKG_CONFIG_PATH)" $(MAKE) CC="$(HOSTCC_NOCCACHE)" HOSTCC="$(HOSTCC_NOCCACHE)" \
 697             obj=$(@D) -C $(CONFIG) -f Makefile.br $(@F)
 698
 699 DEFCONFIG = $(call qstrip,$(BR2_DEFCONFIG))
 700
 701 # We don't want to fully expand BR2_DEFCONFIG here, so Kconfig will
 702 # recognize that if it's still at its default $(CONFIG_DIR)/defconfig
 703 COMMON_CONFIG_ENV = \
 704         BR2_DEFCONFIG='$(call qstrip,$(value BR2_DEFCONFIG))' \
 705         KCONFIG_AUTOCONFIG=$(BUILD_DIR)/buildroot-config/auto.conf \
 706         KCONFIG_AUTOHEADER=$(BUILD_DIR)/buildroot-config/autoconf.h \
 707         KCONFIG_TRISTATE=$(BUILD_DIR)/buildroot-config/tristate.config \
 708         BR2_CONFIG=$(BR2_CONFIG) \
 709         BR2_EXTERNAL=$(BR2_EXTERNAL)
 710
 711 xconfig: $(BUILD_DIR)/buildroot-config/qconf outputmakefile
 712         @mkdir -p $(BUILD_DIR)/buildroot-config
 713         @$(COMMON_CONFIG_ENV) $< $(CONFIG_CONFIG_IN)
 714
 715 gconfig: $(BUILD_DIR)/buildroot-config/gconf outputmakefile
 716         @mkdir -p $(BUILD_DIR)/buildroot-config
 717         @$(COMMON_CONFIG_ENV) srctree=$(TOPDIR) $< $(CONFIG_CONFIG_IN)
 718
 719 menuconfig: $(BUILD_DIR)/buildroot-config/mconf outputmakefile
 720         @mkdir -p $(BUILD_DIR)/buildroot-config
 721         @$(COMMON_CONFIG_ENV) $< $(CONFIG_CONFIG_IN)
 722
 723 nconfig: $(BUILD_DIR)/buildroot-config/nconf outputmakefile
 724         @mkdir -p $(BUILD_DIR)/buildroot-config
 725         @$(COMMON_CONFIG_ENV) $< $(CONFIG_CONFIG_IN)
 726
 727 config: $(BUILD_DIR)/buildroot-config/conf outputmakefile
 728         @mkdir -p $(BUILD_DIR)/buildroot-config
 729         @$(COMMON_CONFIG_ENV) $< $(CONFIG_CONFIG_IN)
 730
 731 oldconfig: $(BUILD_DIR)/buildroot-config/conf outputmakefile
 732         mkdir -p $(BUILD_DIR)/buildroot-config
 733         @$(COMMON_CONFIG_ENV) $< --oldconfig $(CONFIG_CONFIG_IN)
 734
 735 randconfig: $(BUILD_DIR)/buildroot-config/conf outputmakefile
 736         @mkdir -p $(BUILD_DIR)/buildroot-config
 737         @$(COMMON_CONFIG_ENV) $< --randconfig $(CONFIG_CONFIG_IN)
 738
 739 allyesconfig: $(BUILD_DIR)/buildroot-config/conf outputmakefile
 740         @mkdir -p $(BUILD_DIR)/buildroot-config
 741         @$(COMMON_CONFIG_ENV) $< --allyesconfig $(CONFIG_CONFIG_IN)
 742
 743 allnoconfig: $(BUILD_DIR)/buildroot-config/conf outputmakefile
 744         @mkdir -p $(BUILD_DIR)/buildroot-config
 745         @$(COMMON_CONFIG_ENV) $< --allnoconfig $(CONFIG_CONFIG_IN)
 746
 747 randpackageconfig: $(BUILD_DIR)/buildroot-config/conf outputmakefile
 748         @mkdir -p $(BUILD_DIR)/buildroot-config
 749         @grep -v BR2_PACKAGE_ $(BR2_CONFIG) > $(CONFIG_DIR)/.config.nopkg
 750         @grep '^config BR2_PACKAGE_' Config.in.legacy | \
 751                 while read config pkg; do \
 752                 echo "# $$pkg is not set" >> $(CONFIG_DIR)/.config.nopkg; done
 753         @$(COMMON_CONFIG_ENV) \
 754                 KCONFIG_ALLCONFIG=$(CONFIG_DIR)/.config.nopkg \
 755                 $< --randconfig $(CONFIG_CONFIG_IN)
 756         @rm -f $(CONFIG_DIR)/.config.nopkg
 757
 758 allyespackageconfig: $(BUILD_DIR)/buildroot-config/conf outputmakefile
 759         @mkdir -p $(BUILD_DIR)/buildroot-config
 760         @grep -v BR2_PACKAGE_ $(BR2_CONFIG) > $(CONFIG_DIR)/.config.nopkg
 761         @grep '^config BR2_PACKAGE_' Config.in.legacy | \
 762                 while read config pkg; do \
 763                 echo "# $$pkg is not set" >> $(CONFIG_DIR)/.config.nopkg; done
 764         @$(COMMON_CONFIG_ENV) \
 765                 KCONFIG_ALLCONFIG=$(CONFIG_DIR)/.config.nopkg \
 766                 $< --allyesconfig $(CONFIG_CONFIG_IN)
 767         @rm -f $(CONFIG_DIR)/.config.nopkg
 768
 769 allnopackageconfig: $(BUILD_DIR)/buildroot-config/conf outputmakefile
 770         @mkdir -p $(BUILD_DIR)/buildroot-config
 771         @grep -v BR2_PACKAGE_ $(BR2_CONFIG) > $(CONFIG_DIR)/.config.nopkg
 772         @$(COMMON_CONFIG_ENV) \
 773                 KCONFIG_ALLCONFIG=$(CONFIG_DIR)/.config.nopkg \
 774                 $< --allnoconfig $(CONFIG_CONFIG_IN)
 775         @rm -f $(CONFIG_DIR)/.config.nopkg
 776
 777 silentoldconfig: $(BUILD_DIR)/buildroot-config/conf outputmakefile
 778         @mkdir -p $(BUILD_DIR)/buildroot-config
 779         $(COMMON_CONFIG_ENV) $< --silentoldconfig $(CONFIG_CONFIG_IN)
 780
 781 olddefconfig: $(BUILD_DIR)/buildroot-config/conf outputmakefile
 782         @mkdir -p $(BUILD_DIR)/buildroot-config
 783         $(COMMON_CONFIG_ENV) $< --olddefconfig $(CONFIG_CONFIG_IN)
 784
 785 defconfig: $(BUILD_DIR)/buildroot-config/conf outputmakefile
 786         @mkdir -p $(BUILD_DIR)/buildroot-config
 787         @$(COMMON_CONFIG_ENV) $< --defconfig$(if $(DEFCONFIG),=$(DEFCONFIG)) $(CONFIG_CONFIG_IN)
 788
 789 # Override the BR2_DEFCONFIG from COMMON_CONFIG_ENV with the new defconfig
 790 %_defconfig: $(BUILD_DIR)/buildroot-config/conf $(TOPDIR)/configs/%_defconfig outputmakefile
 791         @mkdir -p $(BUILD_DIR)/buildroot-config
 792         @$(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         @mkdir -p $(BUILD_DIR)/buildroot-config
 797         @$(COMMON_CONFIG_ENV) BR2_DEFCONFIG=$(BR2_EXTERNAL)/configs/$@ \
 798                 $< --defconfig=$(BR2_EXTERNAL)/configs/$@ $(CONFIG_CONFIG_IN)
 799
 800 savedefconfig: $(BUILD_DIR)/buildroot-config/conf outputmakefile
 801         @mkdir -p $(BUILD_DIR)/buildroot-config
 802         @$(COMMON_CONFIG_ENV) $< \
 803                 --savedefconfig=$(if $(DEFCONFIG),$(DEFCONFIG),$(CONFIG_DIR)/defconfig) \
 804                 $(CONFIG_CONFIG_IN)
 805
 806 # check if download URLs are outdated
 807 source-check:
 808         $(MAKE1) DL_MODE=SOURCE_CHECK $(EXTRAMAKEARGS) source
 809
 810 .PHONY: defconfig savedefconfig
 811
 812 ################################################################################
 813 #
 814 # Cleanup and misc junk
 815 #
 816 ################################################################################
 817
 818 # outputmakefile generates a Makefile in the output directory, if using a
 819 # separate output directory. This allows convenient use of make in the
 820 # output directory.
 821 outputmakefile:
 822 ifeq ($(NEED_WRAPPER),y)
 823         $(Q)$(TOPDIR)/support/scripts/mkmakefile $(TOPDIR) $(O)
 824 endif
 825
 826 # printvars prints all the variables currently defined in our Makefiles
 827 printvars:
 828         @$(foreach V, \
 829                 $(sort $(.VARIABLES)), \
 830                 $(if $(filter-out environment% default automatic, \
 831                                 $(origin $V)), \
 832                 $(info $V=$($V) ($(value $V)))))
 833
 834 clean:
 835         rm -rf $(TARGET_DIR) $(BINARIES_DIR) $(HOST_DIR) \
 836                 $(BUILD_DIR) $(BASE_DIR)/staging \
 837                 $(LEGAL_INFO_DIR)
 838
 839 distclean: clean
 840 ifeq ($(DL_DIR),$(TOPDIR)/dl)
 841         rm -rf $(DL_DIR)
 842 endif
 843 ifeq ($(O),output)
 844         rm -rf $(O)
 845 endif
 846         rm -rf $(BR2_CONFIG) $(CONFIG_DIR)/.config.old $(CONFIG_DIR)/.auto.deps
 847
 848 help:
 849         @echo 'Cleaning:'
 850         @echo '  clean                  - delete all files created by build'
 851         @echo '  distclean              - delete all non-source files (including .config)'
 852         @echo
 853         @echo 'Build:'
 854         @echo '  all                    - make world'
 855         @echo '  toolchain              - build toolchain'
 856         @echo
 857         @echo 'Configuration:'
 858         @echo '  menuconfig             - interactive curses-based configurator'
 859         @echo '  nconfig                - interactive ncurses-based configurator'
 860         @echo '  xconfig                - interactive Qt-based configurator'
 861         @echo '  gconfig                - interactive GTK-based configurator'
 862         @echo '  oldconfig              - resolve any unresolved symbols in .config'
 863         @echo '  silentoldconfig        - Same as oldconfig, but quietly, additionally update deps'
 864         @echo '  olddefconfig           - Same as silentoldconfig but sets new symbols to their default value'
 865         @echo '  randconfig             - New config with random answer to all options'
 866         @echo '  defconfig              - New config with default answer to all options'
 867         @echo '                             BR2_DEFCONFIG, if set, is used as input'
 868         @echo '  savedefconfig          - Save current config as ./defconfig (minimal config)'
 869         @echo '  allyesconfig           - New config where all options are accepted with yes'
 870         @echo '  allnoconfig            - New config where all options are answered with no'
 871         @echo '  randpackageconfig      - New config with random answer to package options'
 872         @echo '  allyespackageconfig    - New config where pkg options are accepted with yes'
 873         @echo '  allnopackageconfig     - New config where package options are answered with no'
 874 ifeq ($(BR2_PACKAGE_BUSYBOX),y)
 875         @echo '  busybox-menuconfig     - Run BusyBox menuconfig'
 876 endif
 877 ifeq ($(BR2_LINUX_KERNEL),y)
 878         @echo '  linux-menuconfig       - Run Linux kernel menuconfig'
 879         @echo '  linux-savedefconfig    - Run Linux kernel savedefconfig'
 880 endif
 881 ifeq ($(BR2_TOOLCHAIN_BUILDROOT),y)
 882         @echo '  uclibc-menuconfig      - Run uClibc menuconfig'
 883 endif
 884 ifeq ($(BR2_TARGET_BAREBOX),y)
 885         @echo '  barebox-menuconfig     - Run barebox menuconfig'
 886         @echo '  barebox-savedefconfig  - Run barebox savedefconfig'
 887 endif
 888         @echo
 889         @echo 'Documentation:'
 890         @echo '  manual                 - build manual in all formats'
 891         @echo '  manual-html            - build manual in HTML'
 892         @echo '  manual-split-html      - build manual in split HTML'
 893         @echo '  manual-pdf             - build manual in PDF'
 894         @echo '  manual-text            - build manual in text'
 895         @echo '  manual-epub            - build manual in ePub'
 896         @echo '  graph-build            - generate graphs of the build times'
 897         @echo '  graph-depends          - generate graph of the dependency tree'
 898         @echo
 899         @echo 'Miscellaneous:'
 900         @echo '  source                 - download all sources needed for offline-build'
 901         @echo '  source-check           - check selected packages for valid download URLs'
 902         @echo '  external-deps          - list external packages used'
 903         @echo '  legal-info             - generate info about license compliance'
 904         @echo
 905         @echo '  make V=0|1             - 0 => quiet build (default), 1 => verbose build'
 906         @echo '  make O=dir             - Locate all output files in "dir", including .config'
 907         @echo
 908         @echo 'Built-in configs:'
 909         @$(foreach b, $(sort $(notdir $(wildcard $(TOPDIR)/configs/*_defconfig))), \
 910           printf "  %-35s - Build for %s\\n" $(b) $(b:_defconfig=);)
 911 ifneq ($(wildcard $(BR2_EXTERNAL)/configs/*_defconfig),)
 912         @echo
 913         @echo 'User-provided configs:'
 914         @$(foreach b, $(sort $(notdir $(wildcard $(BR2_EXTERNAL)/configs/*_defconfig))), \
 915           printf "  %-35s - Build for %s\\n" $(b) $(b:_defconfig=);)
 916 endif
 917         @echo
 918         @echo 'For further details, see README, generate the Buildroot manual, or consult'
 919         @echo 'it on-line at http://buildroot.org/docs.html'
 920         @echo
 921
 922 release: OUT = buildroot-$(BR2_VERSION)
 923
 924 # Create release tarballs. We need to fiddle a bit to add the generated
 925 # documentation to the git output
 926 release:
 927         git archive --format=tar --prefix=$(OUT)/ HEAD > $(OUT).tar
 928         $(MAKE) O=$(OUT) manual-html manual-text manual-pdf
 929         tar rf $(OUT).tar $(OUT)
 930         gzip -9 -c < $(OUT).tar > $(OUT).tar.gz
 931         bzip2 -9 -c < $(OUT).tar > $(OUT).tar.bz2
 932         rm -rf $(OUT) $(OUT).tar
 933
 934 print-version:
 935         @echo $(BR2_VERSION_FULL)
 936
 937 include docs/manual/manual.mk
 938 -include $(BR2_EXTERNAL)/docs/*/*.mk
 939
 940 .PHONY: $(noconfig_targets)