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 := 2015.05-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 GRAPHS_DIR := $(BASE_DIR)/graphs
 165
 166 LEGAL_INFO_DIR = $(BASE_DIR)/legal-info
 167 REDIST_SOURCES_DIR_TARGET = $(LEGAL_INFO_DIR)/sources
 168 REDIST_SOURCES_DIR_HOST = $(LEGAL_INFO_DIR)/host-sources
 169 LICENSE_FILES_DIR_TARGET = $(LEGAL_INFO_DIR)/licenses
 170 LICENSE_FILES_DIR_HOST = $(LEGAL_INFO_DIR)/host-licenses
 171 LEGAL_MANIFEST_CSV_TARGET = $(LEGAL_INFO_DIR)/manifest.csv
 172 LEGAL_MANIFEST_CSV_HOST = $(LEGAL_INFO_DIR)/host-manifest.csv
 173 LEGAL_LICENSES_TXT_TARGET = $(LEGAL_INFO_DIR)/licenses.txt
 174 LEGAL_LICENSES_TXT_HOST = $(LEGAL_INFO_DIR)/host-licenses.txt
 175 LEGAL_WARNINGS = $(LEGAL_INFO_DIR)/.warnings
 176 LEGAL_REPORT = $(LEGAL_INFO_DIR)/README
 177
 178 BR2_CONFIG = $(CONFIG_DIR)/.config
 179
 180 # Pull in the user's configuration file
 181 ifeq ($(filter $(noconfig_targets),$(MAKECMDGOALS)),)
 182 -include $(BR2_CONFIG)
 183 endif
 184
 185 # To put more focus on warnings, be less verbose as default
 186 # Use 'make V=1' to see the full commands
 187 ifeq ("$(origin V)", "command line")
 188   KBUILD_VERBOSE = $(V)
 189 endif
 190 ifndef KBUILD_VERBOSE
 191   KBUILD_VERBOSE = 0
 192 endif
 193
 194 ifeq ($(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 HOST_PKG_CONFIG_PATH := $(PKG_CONFIG_PATH)
 267 unexport PKG_CONFIG_PATH
 268 unexport PKG_CONFIG_SYSROOT_DIR
 269 unexport PKG_CONFIG_LIBDIR
 270
 271 # Having DESTDIR set in the environment confuses the installation
 272 # steps of some packages.
 273 unexport DESTDIR
 274
 275 # Causes breakage with packages that needs host-ruby
 276 unexport RUBYOPT
 277
 278 include package/pkg-utils.mk
 279 include package/doc-asciidoc.mk
 280
 281 ifeq ($(BR2_HAVE_DOT_CONFIG),y)
 282
 283 ################################################################################
 284 #
 285 # Hide troublesome environment variables from sub processes
 286 #
 287 ################################################################################
 288 unexport CROSS_COMPILE
 289 unexport ARCH
 290 unexport CC
 291 unexport CXX
 292 unexport CPP
 293 unexport CFLAGS
 294 unexport CXXFLAGS
 295 unexport GREP_OPTIONS
 296 unexport TAR_OPTIONS
 297 unexport CONFIG_SITE
 298 unexport QMAKESPEC
 299 unexport TERMINFO
 300 unexport MACHINE
 301
 302 GNU_HOST_NAME := $(shell support/gnuconfig/config.guess)
 303
 304 TARGETS :=
 305
 306 # silent mode requested?
 307 QUIET := $(if $(findstring s,$(filter-out --%,$(MAKEFLAGS))),-q)
 308
 309 # Strip off the annoying quoting
 310 ARCH := $(call qstrip,$(BR2_ARCH))
 311
 312 KERNEL_ARCH := $(shell echo "$(ARCH)" | sed -e "s/-.*//" \
 313         -e s/i.86/i386/ -e s/sun4u/sparc64/ \
 314         -e s/arcle/arc/ \
 315         -e s/arceb/arc/ \
 316         -e s/arm.*/arm/ -e s/sa110/arm/ \
 317         -e s/aarch64/arm64/ \
 318         -e s/bfin/blackfin/ \
 319         -e s/parisc64/parisc/ \
 320         -e s/powerpc64.*/powerpc/ \
 321         -e s/ppc.*/powerpc/ -e s/mips.*/mips/ \
 322         -e s/sh.*/sh/ \
 323         -e s/microblazeel/microblaze/)
 324
 325 ZCAT := $(call qstrip,$(BR2_ZCAT))
 326 BZCAT := $(call qstrip,$(BR2_BZCAT))
 327 XZCAT := $(call qstrip,$(BR2_XZCAT))
 328 TAR_OPTIONS = $(call qstrip,$(BR2_TAR_OPTIONS)) -xf
 329
 330 # packages compiled for the host go here
 331 HOST_DIR := $(call qstrip,$(BR2_HOST_DIR))
 332
 333 # Quotes are needed for spaces and all in the original PATH content.
 334 BR_PATH = "$(HOST_DIR)/bin:$(HOST_DIR)/sbin:$(HOST_DIR)/usr/bin:$(HOST_DIR)/usr/sbin:$(PATH)"
 335
 336 TARGET_SKELETON = $(TOPDIR)/system/skeleton
 337
 338 # Location of a file giving a big fat warning that output/target
 339 # should not be used as the root filesystem.
 340 TARGET_DIR_WARNING_FILE = $(TARGET_DIR)/THIS_IS_NOT_YOUR_ROOT_FILESYSTEM
 341
 342 ifeq ($(BR2_CCACHE),y)
 343 CCACHE := $(HOST_DIR)/usr/bin/ccache
 344 BR_CACHE_DIR = $(call qstrip,$(BR2_CCACHE_DIR))
 345 export BR_CACHE_DIR
 346 HOSTCC := $(CCACHE) $(HOSTCC)
 347 HOSTCXX := $(CCACHE) $(HOSTCXX)
 348 endif
 349
 350 # Scripts in support/ or post-build scripts may need to reference
 351 # these locations, so export them so it is easier to use
 352 export BR2_CONFIG
 353 export TARGET_DIR
 354 export STAGING_DIR
 355 export HOST_DIR
 356 export BINARIES_DIR
 357 export BASE_DIR
 358
 359 ################################################################################
 360 #
 361 # You should probably leave this stuff alone unless you know
 362 # what you are doing.
 363 #
 364 ################################################################################
 365
 366 all: world
 367
 368 # Include legacy before the other things, because package .mk files
 369 # may rely on it.
 370 ifneq ($(BR2_DEPRECATED),y)
 371 include Makefile.legacy
 372 endif
 373
 374 include package/Makefile.in
 375 include support/dependencies/dependencies.mk
 376
 377 include toolchain/*.mk
 378 include toolchain/*/*.mk
 379
 380 # Include the package override file if one has been provided in the
 381 # configuration.
 382 PACKAGE_OVERRIDE_FILE = $(call qstrip,$(BR2_PACKAGE_OVERRIDE_FILE))
 383 ifneq ($(PACKAGE_OVERRIDE_FILE),)
 384 -include $(PACKAGE_OVERRIDE_FILE)
 385 endif
 386
 387 include $(sort $(wildcard package/*/*.mk))
 388
 389 include boot/common.mk
 390 include linux/linux.mk
 391 include system/system.mk
 392 include fs/common.mk
 393
 394 include $(BR2_EXTERNAL)/external.mk
 395
 396 TARGETS_SOURCE := $(patsubst %,%-source,$(TARGETS))
 397 TARGETS_DIRCLEAN := $(patsubst %,%-dirclean,$(TARGETS))
 398
 399 # host-* dependencies have to be handled specially, as those aren't
 400 # visible in Kconfig and hence not added to a variable like TARGETS.
 401 # instead, find all the host-* targets listed in each <PKG>_DEPENDENCIES
 402 # variable for each enabled target.
 403 # Notice: this only works for newstyle gentargets/autotargets packages
 404 TARGETS_HOST_DEPS = $(sort $(filter host-%,$(foreach dep,\
 405                 $(addsuffix _DEPENDENCIES,\
 406                         $(call UPPERCASE,$(TARGETS) $(TARGETS_ROOTFS))),\
 407                 $($(dep)))))
 408 # Host packages can in turn have their own dependencies. Likewise find
 409 # all the package names listed in the HOST_<PKG>_DEPENDENCIES for each
 410 # host package found above. Ideally this should be done recursively until
 411 # no more packages are found, but that's hard to do in make, so limit to
 412 # 1 level for now.
 413 HOST_DEPS = $(sort $(foreach dep,\
 414                 $(addsuffix _DEPENDENCIES,$(call UPPERCASE,$(TARGETS_HOST_DEPS))),\
 415                 $($(dep))))
 416 HOST_SOURCE += $(addsuffix -source,$(sort $(TARGETS_HOST_DEPS) $(HOST_DEPS)))
 417
 418 TARGETS_LEGAL_INFO := $(patsubst %,%-legal-info,\
 419                 $(TARGETS) $(TARGETS_HOST_DEPS) $(HOST_DEPS))
 420
 421 dirs: $(BUILD_DIR) $(STAGING_DIR) $(TARGET_DIR) \
 422         $(HOST_DIR) $(BINARIES_DIR)
 423
 424 $(BUILD_DIR)/buildroot-config/auto.conf: $(BR2_CONFIG)
 425         $(MAKE1) $(EXTRAMAKEARGS) HOSTCC="$(HOSTCC_NOCCACHE)" HOSTCXX="$(HOSTCXX_NOCCACHE)" silentoldconfig
 426
 427 prepare: $(BUILD_DIR)/buildroot-config/auto.conf
 428
 429 world: target-post-image
 430
 431 .PHONY: all world toolchain dirs clean distclean source outputmakefile \
 432         legal-info legal-info-prepare legal-info-clean printvars help \
 433         list-defconfigs target-finalize target-post-image \
 434         $(TARGETS) $(TARGETS_ROOTFS) \
 435         $(TARGETS_DIRCLEAN) $(TARGETS_SOURCE) $(TARGETS_LEGAL_INFO)
 436
 437 ################################################################################
 438 #
 439 # staging and target directories do NOT list these as
 440 # dependencies anywhere else
 441 #
 442 ################################################################################
 443 $(BUILD_DIR) $(HOST_DIR) $(BINARIES_DIR) $(LEGAL_INFO_DIR) $(REDIST_SOURCES_DIR_TARGET) $(REDIST_SOURCES_DIR_HOST):
 444         @mkdir -p $@
 445
 446 # We make a symlink lib32->lib or lib64->lib as appropriate
 447 # MIPS64/n32 requires lib32 even though it's a 64-bit arch.
 448 ifeq ($(BR2_ARCH_IS_64)$(BR2_MIPS_NABI32),y)
 449 LIB_SYMLINK = lib64
 450 else
 451 LIB_SYMLINK = lib32
 452 endif
 453
 454 $(STAGING_DIR):
 455         @mkdir -p $(STAGING_DIR)/bin
 456         @mkdir -p $(STAGING_DIR)/lib
 457         @ln -snf lib $(STAGING_DIR)/$(LIB_SYMLINK)
 458         @mkdir -p $(STAGING_DIR)/usr/lib
 459         @ln -snf lib $(STAGING_DIR)/usr/$(LIB_SYMLINK)
 460         @mkdir -p $(STAGING_DIR)/usr/include
 461         @mkdir -p $(STAGING_DIR)/usr/bin
 462         @ln -snf $(STAGING_DIR) $(BASE_DIR)/staging
 463
 464 ifeq ($(BR2_ROOTFS_SKELETON_CUSTOM),y)
 465 TARGET_SKELETON = $(BR2_ROOTFS_SKELETON_CUSTOM_PATH)
 466 endif
 467
 468 RSYNC_VCS_EXCLUSIONS = \
 469         --exclude .svn --exclude .git --exclude .hg --exclude .bzr \
 470         --exclude CVS
 471
 472 $(BUILD_DIR)/.root:
 473         mkdir -p $(TARGET_DIR)
 474         rsync -a --ignore-times $(RSYNC_VCS_EXCLUSIONS) \
 475                 --chmod=Du+w --exclude .empty --exclude '*~' \
 476                 $(TARGET_SKELETON)/ $(TARGET_DIR)/
 477         $(INSTALL) -m 0644 support/misc/target-dir-warning.txt $(TARGET_DIR_WARNING_FILE)
 478         @ln -snf lib $(TARGET_DIR)/$(LIB_SYMLINK)
 479         @mkdir -p $(TARGET_DIR)/usr
 480         @ln -snf lib $(TARGET_DIR)/usr/$(LIB_SYMLINK)
 481         touch $@
 482
 483 $(TARGET_DIR): $(BUILD_DIR)/.root
 484
 485 STRIP_FIND_CMD = find $(TARGET_DIR)
 486 ifneq (,$(call qstrip,$(BR2_STRIP_EXCLUDE_DIRS)))
 487 STRIP_FIND_CMD += \( $(call finddirclauses,$(TARGET_DIR),$(call qstrip,$(BR2_STRIP_EXCLUDE_DIRS))) \) -prune -o
 488 endif
 489 STRIP_FIND_CMD += -type f \( -perm /111 -o -name '*.so*' \)
 490 # file exclusions:
 491 # - libpthread.so: a non-stripped libpthread shared library is needed for
 492 #   proper debugging of pthread programs using gdb.
 493 # - kernel modules (*.ko): do not function properly when stripped like normal
 494 #   applications and libraries. Normally kernel modules are already excluded
 495 #   by the executable permission check above, so the explicit exclusion is only
 496 #   done for kernel modules with incorrect permissions.
 497 STRIP_FIND_CMD += -not \( $(call findfileclauses,libpthread*.so* *.ko $(call qstrip,$(BR2_STRIP_EXCLUDE_FILES))) \) -print0
 498
 499 ifeq ($(BR2_ECLIPSE_REGISTER),y)
 500 define TOOLCHAIN_ECLIPSE_REGISTER
 501         ./support/scripts/eclipse-register-toolchain `readlink -f $(O)` \
 502                 $(notdir $(TARGET_CROSS)) $(BR2_ARCH)
 503 endef
 504 TARGET_FINALIZE_HOOKS += TOOLCHAIN_ECLIPSE_REGISTER
 505 endif
 506
 507 # Generate locale data. Basically, we call the localedef program
 508 # (built by the host-localedef package) for each locale. The input
 509 # data comes preferably from the toolchain, or if the toolchain does
 510 # not have them (Linaro toolchains), we use the ones available on the
 511 # host machine.
 512 ifeq ($(BR2_TOOLCHAIN_USES_GLIBC),y)
 513 GLIBC_GENERATE_LOCALES = $(call qstrip,$(BR2_GENERATE_LOCALE))
 514 ifneq ($(GLIBC_GENERATE_LOCALES),)
 515 TARGETS += host-localedef
 516
 517 define GENERATE_GLIBC_LOCALES
 518         $(Q)mkdir -p $(TARGET_DIR)/usr/lib/locale/
 519         $(Q)for locale in $(GLIBC_GENERATE_LOCALES) ; do \
 520                 inputfile=`echo $${locale} | cut -f1 -d'.'` ; \
 521                 charmap=`echo $${locale} | cut -f2 -d'.' -s` ; \
 522                 if test -z "$${charmap}" ; then \
 523                         charmap="UTF-8" ; \
 524                 fi ; \
 525                 echo "Generating locale $${inputfile}.$${charmap}" ; \
 526                 I18NPATH=$(STAGING_DIR)/usr/share/i18n:/usr/share/i18n \
 527                 $(HOST_DIR)/usr/bin/localedef \
 528                         --prefix=$(TARGET_DIR) \
 529                         --$(call LOWERCASE,$(BR2_ENDIAN))-endian \
 530                         -i $${inputfile} -f $${charmap} \
 531                         $${locale} ; \
 532         done
 533 endef
 534 TARGET_FINALIZE_HOOKS += GENERATE_GLIBC_LOCALES
 535 endif
 536 endif
 537
 538 ifeq ($(BR2_ENABLE_LOCALE_PURGE),y)
 539 LOCALE_WHITELIST = $(BUILD_DIR)/locales.nopurge
 540 LOCALE_NOPURGE = $(call qstrip,$(BR2_ENABLE_LOCALE_WHITELIST))
 541
 542 define PURGE_LOCALES
 543         rm -f $(LOCALE_WHITELIST)
 544         for i in $(LOCALE_NOPURGE) locale-archive; do echo $$i >> $(LOCALE_WHITELIST); done
 545
 546         for dir in $(wildcard $(addprefix $(TARGET_DIR),/usr/share/locale /usr/share/X11/locale /usr/man /usr/share/man /usr/lib/locale)); \
 547         do \
 548                 for lang in $$(cd $$dir; ls .|grep -v man); \
 549                 do \
 550                         grep -qx $$lang $(LOCALE_WHITELIST) || rm -rf $$dir/$$lang; \
 551                 done; \
 552         done
 553 endef
 554 TARGET_FINALIZE_HOOKS += PURGE_LOCALES
 555 endif
 556
 557 $(TARGETS_ROOTFS): target-finalize
 558
 559 target-finalize: $(TARGETS)
 560         @$(call MESSAGE,"Finalizing target directory")
 561         $(foreach hook,$(TARGET_FINALIZE_HOOKS),$($(hook))$(sep))
 562         rm -rf $(TARGET_DIR)/usr/include $(TARGET_DIR)/usr/share/aclocal \
 563                 $(TARGET_DIR)/usr/lib/pkgconfig $(TARGET_DIR)/usr/share/pkgconfig \
 564                 $(TARGET_DIR)/usr/lib/cmake $(TARGET_DIR)/usr/share/cmake
 565         find $(TARGET_DIR)/usr/{lib,share}/ -name '*.cmake' -print0 | xargs -0 rm -f
 566         find $(TARGET_DIR)/lib \( -name '*.a' -o -name '*.la' \) -print0 | xargs -0 rm -f
 567         find $(TARGET_DIR)/usr/lib \( -name '*.a' -o -name '*.la' \) -print0 | xargs -0 rm -f
 568 ifneq ($(BR2_PACKAGE_GDB),y)
 569         rm -rf $(TARGET_DIR)/usr/share/gdb
 570 endif
 571         rm -rf $(TARGET_DIR)/usr/man $(TARGET_DIR)/usr/share/man
 572         rm -rf $(TARGET_DIR)/usr/info $(TARGET_DIR)/usr/share/info
 573         rm -rf $(TARGET_DIR)/usr/doc $(TARGET_DIR)/usr/share/doc
 574         rm -rf $(TARGET_DIR)/usr/share/gtk-doc
 575         -rmdir $(TARGET_DIR)/usr/share 2>/dev/null
 576         $(STRIP_FIND_CMD) | xargs -0 $(STRIPCMD) 2>/dev/null || true
 577         if test -d $(TARGET_DIR)/lib/modules; then \
 578                 find $(TARGET_DIR)/lib/modules -type f -name '*.ko' | \
 579                 xargs -r $(KSTRIPCMD); fi
 580
 581 # See http://sourceware.org/gdb/wiki/FAQ, "GDB does not see any threads
 582 # besides the one in which crash occurred; or SIGTRAP kills my program when
 583 # I set a breakpoint"
 584 ifeq ($(BR2_TOOLCHAIN_HAS_THREADS),y)
 585         find $(TARGET_DIR)/lib -type f -name 'libpthread*.so*' | \
 586                 xargs -r $(STRIPCMD) $(STRIP_STRIP_DEBUG)
 587 endif
 588
 589         mkdir -p $(TARGET_DIR)/etc
 590         # Mandatory configuration file and auxilliary cache directory
 591         # for recent versions of ldconfig
 592         touch $(TARGET_DIR)/etc/ld.so.conf
 593         mkdir -p $(TARGET_DIR)/var/cache/ldconfig
 594         if [ -x "$(TARGET_CROSS)ldconfig" ]; \
 595         then \
 596                 $(TARGET_CROSS)ldconfig -r $(TARGET_DIR); \
 597         else \
 598                 /sbin/ldconfig -r $(TARGET_DIR); \
 599         fi
 600         ( \
 601                 echo "NAME=Buildroot"; \
 602                 echo "VERSION=$(BR2_VERSION_FULL)"; \
 603                 echo "ID=buildroot"; \
 604                 echo "VERSION_ID=$(BR2_VERSION)"; \
 605                 echo "PRETTY_NAME=\"Buildroot $(BR2_VERSION)\"" \
 606         ) >  $(TARGET_DIR)/etc/os-release
 607
 608         @$(foreach d, $(call qstrip,$(BR2_ROOTFS_OVERLAY)), \
 609                 $(call MESSAGE,"Copying overlay $(d)"); \
 610                 rsync -a --ignore-times $(RSYNC_VCS_EXCLUSIONS) \
 611                         --chmod=Du+w --exclude .empty --exclude '*~' \
 612                         $(d)/ $(TARGET_DIR)$(sep))
 613
 614         @$(foreach s, $(call qstrip,$(BR2_ROOTFS_POST_BUILD_SCRIPT)), \
 615                 $(call MESSAGE,"Executing post-build script $(s)"); \
 616                 $(EXTRA_ENV) $(s) $(TARGET_DIR) $(call qstrip,$(BR2_ROOTFS_POST_SCRIPT_ARGS))$(sep))
 617
 618 target-post-image: $(TARGETS_ROOTFS) target-finalize
 619         @$(foreach s, $(call qstrip,$(BR2_ROOTFS_POST_IMAGE_SCRIPT)), \
 620                 $(call MESSAGE,"Executing post-image script $(s)"); \
 621                 $(EXTRA_ENV) $(s) $(BINARIES_DIR) $(call qstrip,$(BR2_ROOTFS_POST_SCRIPT_ARGS))$(sep))
 622
 623 source: $(TARGETS_SOURCE) $(HOST_SOURCE)
 624
 625 external-deps:
 626         @$(MAKE1) -Bs DL_MODE=SHOW_EXTERNAL_DEPS $(EXTRAMAKEARGS) source | sort -u
 627
 628 legal-info-clean:
 629         @rm -fr $(LEGAL_INFO_DIR)
 630
 631 legal-info-prepare: $(LEGAL_INFO_DIR)
 632         @$(call MESSAGE,"Collecting legal info")
 633         @$(call legal-license-file,buildroot,COPYING,COPYING,HOST)
 634         @$(call legal-manifest,PACKAGE,VERSION,LICENSE,LICENSE FILES,SOURCE ARCHIVE,SOURCE SITE,TARGET)
 635         @$(call legal-manifest,PACKAGE,VERSION,LICENSE,LICENSE FILES,SOURCE ARCHIVE,SOURCE SITE,HOST)
 636         @$(call legal-manifest,buildroot,$(BR2_VERSION_FULL),GPLv2+,COPYING,not saved,not saved,HOST)
 637         @$(call legal-warning,the Buildroot source code has not been saved)
 638         @$(call legal-warning,the toolchain has not been saved)
 639         @cp $(BR2_CONFIG) $(LEGAL_INFO_DIR)/buildroot.config
 640
 641 legal-info: dirs legal-info-clean legal-info-prepare $(TARGETS_LEGAL_INFO) \
 642                 $(REDIST_SOURCES_DIR_TARGET) $(REDIST_SOURCES_DIR_HOST)
 643         @cat support/legal-info/README.header >>$(LEGAL_REPORT)
 644         @if [ -r $(LEGAL_WARNINGS) ]; then \
 645                 cat support/legal-info/README.warnings-header \
 646                         $(LEGAL_WARNINGS) >>$(LEGAL_REPORT); \
 647                 cat $(LEGAL_WARNINGS); fi
 648         @echo "Legal info produced in $(LEGAL_INFO_DIR)"
 649         @rm -f $(LEGAL_WARNINGS)
 650
 651 show-targets:
 652         @echo $(HOST_DEPS) $(TARGETS_HOST_DEPS) $(TARGETS) $(TARGETS_ROOTFS)
 653
 654 graph-build: $(O)/build/build-time.log
 655         @install -d $(GRAPHS_DIR)
 656         $(foreach o,name build duration,./support/scripts/graph-build-time \
 657                                         --type=histogram --order=$(o) --input=$(<) \
 658                                         --output=$(GRAPHS_DIR)/build.hist-$(o).$(BR_GRAPH_OUT) \
 659                                         $(if $(BR2_GRAPH_ALT),--alternate-colors)$(sep))
 660         $(foreach t,packages steps,./support/scripts/graph-build-time \
 661                                    --type=pie-$(t) --input=$(<) \
 662                                    --output=$(GRAPHS_DIR)/build.pie-$(t).$(BR_GRAPH_OUT) \
 663                                    $(if $(BR2_GRAPH_ALT),--alternate-colors)$(sep))
 664
 665 graph-depends-requirements:
 666         @dot -? >/dev/null 2>&1 || \
 667                 { echo "ERROR: The 'dot' program from Graphviz is needed for graph-depends" >&2; exit 1; }
 668
 669 graph-depends: graph-depends-requirements
 670         @$(INSTALL) -d $(GRAPHS_DIR)
 671         @cd "$(CONFIG_DIR)"; \
 672         $(TOPDIR)/support/scripts/graph-depends $(BR2_GRAPH_DEPS_OPTS) \
 673         |tee $(GRAPHS_DIR)/$(@).dot \
 674         |dot $(BR2_GRAPH_DOT_OPTS) -T$(BR_GRAPH_OUT) -o $(GRAPHS_DIR)/$(@).$(BR_GRAPH_OUT)
 675
 676 else # ifeq ($(BR2_HAVE_DOT_CONFIG),y)
 677
 678 all: menuconfig
 679
 680 endif # ifeq ($(BR2_HAVE_DOT_CONFIG),y)
 681
 682 # configuration
 683 # ---------------------------------------------------------------------------
 684
 685 HOSTCFLAGS = $(CFLAGS_FOR_BUILD)
 686 export HOSTCFLAGS
 687
 688 $(BUILD_DIR)/buildroot-config/%onf:
 689         mkdir -p $(@D)/lxdialog
 690         PKG_CONFIG_PATH="$(HOST_PKG_CONFIG_PATH)" $(MAKE) CC="$(HOSTCC_NOCCACHE)" HOSTCC="$(HOSTCC_NOCCACHE)" \
 691             obj=$(@D) -C $(CONFIG) -f Makefile.br $(@F)
 692
 693 DEFCONFIG = $(call qstrip,$(BR2_DEFCONFIG))
 694
 695 # We don't want to fully expand BR2_DEFCONFIG here, so Kconfig will
 696 # recognize that if it's still at its default $(CONFIG_DIR)/defconfig
 697 COMMON_CONFIG_ENV = \
 698         BR2_DEFCONFIG='$(call qstrip,$(value BR2_DEFCONFIG))' \
 699         KCONFIG_AUTOCONFIG=$(BUILD_DIR)/buildroot-config/auto.conf \
 700         KCONFIG_AUTOHEADER=$(BUILD_DIR)/buildroot-config/autoconf.h \
 701         KCONFIG_TRISTATE=$(BUILD_DIR)/buildroot-config/tristate.config \
 702         BR2_CONFIG=$(BR2_CONFIG) \
 703         BR2_EXTERNAL=$(BR2_EXTERNAL)
 704
 705 xconfig: $(BUILD_DIR)/buildroot-config/qconf outputmakefile
 706         @mkdir -p $(BUILD_DIR)/buildroot-config
 707         @$(COMMON_CONFIG_ENV) $< $(CONFIG_CONFIG_IN)
 708
 709 gconfig: $(BUILD_DIR)/buildroot-config/gconf outputmakefile
 710         @mkdir -p $(BUILD_DIR)/buildroot-config
 711         @$(COMMON_CONFIG_ENV) srctree=$(TOPDIR) $< $(CONFIG_CONFIG_IN)
 712
 713 menuconfig: $(BUILD_DIR)/buildroot-config/mconf outputmakefile
 714         @mkdir -p $(BUILD_DIR)/buildroot-config
 715         @$(COMMON_CONFIG_ENV) $< $(CONFIG_CONFIG_IN)
 716
 717 nconfig: $(BUILD_DIR)/buildroot-config/nconf outputmakefile
 718         @mkdir -p $(BUILD_DIR)/buildroot-config
 719         @$(COMMON_CONFIG_ENV) $< $(CONFIG_CONFIG_IN)
 720
 721 config: $(BUILD_DIR)/buildroot-config/conf outputmakefile
 722         @mkdir -p $(BUILD_DIR)/buildroot-config
 723         @$(COMMON_CONFIG_ENV) $< $(CONFIG_CONFIG_IN)
 724
 725 oldconfig: $(BUILD_DIR)/buildroot-config/conf outputmakefile
 726         mkdir -p $(BUILD_DIR)/buildroot-config
 727         @$(COMMON_CONFIG_ENV) $< --oldconfig $(CONFIG_CONFIG_IN)
 728
 729 randconfig: $(BUILD_DIR)/buildroot-config/conf outputmakefile
 730         @mkdir -p $(BUILD_DIR)/buildroot-config
 731         @$(COMMON_CONFIG_ENV) $< --randconfig $(CONFIG_CONFIG_IN)
 732
 733 allyesconfig: $(BUILD_DIR)/buildroot-config/conf outputmakefile
 734         @mkdir -p $(BUILD_DIR)/buildroot-config
 735         @$(COMMON_CONFIG_ENV) $< --allyesconfig $(CONFIG_CONFIG_IN)
 736
 737 allnoconfig: $(BUILD_DIR)/buildroot-config/conf outputmakefile
 738         @mkdir -p $(BUILD_DIR)/buildroot-config
 739         @$(COMMON_CONFIG_ENV) $< --allnoconfig $(CONFIG_CONFIG_IN)
 740
 741 randpackageconfig: $(BUILD_DIR)/buildroot-config/conf outputmakefile
 742         @mkdir -p $(BUILD_DIR)/buildroot-config
 743         @grep -v BR2_PACKAGE_ $(BR2_CONFIG) > $(CONFIG_DIR)/.config.nopkg
 744         @grep '^config BR2_PACKAGE_' Config.in.legacy | \
 745                 while read config pkg; do \
 746                 echo "# $$pkg is not set" >> $(CONFIG_DIR)/.config.nopkg; done
 747         @$(COMMON_CONFIG_ENV) \
 748                 KCONFIG_ALLCONFIG=$(CONFIG_DIR)/.config.nopkg \
 749                 $< --randconfig $(CONFIG_CONFIG_IN)
 750         @rm -f $(CONFIG_DIR)/.config.nopkg
 751
 752 allyespackageconfig: $(BUILD_DIR)/buildroot-config/conf outputmakefile
 753         @mkdir -p $(BUILD_DIR)/buildroot-config
 754         @grep -v BR2_PACKAGE_ $(BR2_CONFIG) > $(CONFIG_DIR)/.config.nopkg
 755         @grep '^config BR2_PACKAGE_' Config.in.legacy | \
 756                 while read config pkg; do \
 757                 echo "# $$pkg is not set" >> $(CONFIG_DIR)/.config.nopkg; done
 758         @$(COMMON_CONFIG_ENV) \
 759                 KCONFIG_ALLCONFIG=$(CONFIG_DIR)/.config.nopkg \
 760                 $< --allyesconfig $(CONFIG_CONFIG_IN)
 761         @rm -f $(CONFIG_DIR)/.config.nopkg
 762
 763 allnopackageconfig: $(BUILD_DIR)/buildroot-config/conf outputmakefile
 764         @mkdir -p $(BUILD_DIR)/buildroot-config
 765         @grep -v BR2_PACKAGE_ $(BR2_CONFIG) > $(CONFIG_DIR)/.config.nopkg
 766         @$(COMMON_CONFIG_ENV) \
 767                 KCONFIG_ALLCONFIG=$(CONFIG_DIR)/.config.nopkg \
 768                 $< --allnoconfig $(CONFIG_CONFIG_IN)
 769         @rm -f $(CONFIG_DIR)/.config.nopkg
 770
 771 silentoldconfig: $(BUILD_DIR)/buildroot-config/conf outputmakefile
 772         @mkdir -p $(BUILD_DIR)/buildroot-config
 773         $(COMMON_CONFIG_ENV) $< --silentoldconfig $(CONFIG_CONFIG_IN)
 774
 775 olddefconfig: $(BUILD_DIR)/buildroot-config/conf outputmakefile
 776         @mkdir -p $(BUILD_DIR)/buildroot-config
 777         $(COMMON_CONFIG_ENV) $< --olddefconfig $(CONFIG_CONFIG_IN)
 778
 779 defconfig: $(BUILD_DIR)/buildroot-config/conf outputmakefile
 780         @mkdir -p $(BUILD_DIR)/buildroot-config
 781         @$(COMMON_CONFIG_ENV) $< --defconfig$(if $(DEFCONFIG),=$(DEFCONFIG)) $(CONFIG_CONFIG_IN)
 782
 783 # Override the BR2_DEFCONFIG from COMMON_CONFIG_ENV with the new defconfig
 784 %_defconfig: $(BUILD_DIR)/buildroot-config/conf $(TOPDIR)/configs/%_defconfig outputmakefile
 785         @mkdir -p $(BUILD_DIR)/buildroot-config
 786         @$(COMMON_CONFIG_ENV) BR2_DEFCONFIG=$(TOPDIR)/configs/$@ \
 787                 $< --defconfig=$(TOPDIR)/configs/$@ $(CONFIG_CONFIG_IN)
 788
 789 %_defconfig: $(BUILD_DIR)/buildroot-config/conf $(BR2_EXTERNAL)/configs/%_defconfig outputmakefile
 790         @mkdir -p $(BUILD_DIR)/buildroot-config
 791         @$(COMMON_CONFIG_ENV) BR2_DEFCONFIG=$(BR2_EXTERNAL)/configs/$@ \
 792                 $< --defconfig=$(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) $(GRAPHS_DIR)
 832
 833 distclean: clean
 834 ifeq ($(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)/..config.tmp \
 841                 $(CONFIG_DIR)/.auto.deps
 842
 843 help:
 844         @echo 'Cleaning:'
 845         @echo '  clean                  - delete all files created by build'
 846         @echo '  distclean              - delete all non-source files (including .config)'
 847         @echo
 848         @echo 'Build:'
 849         @echo '  all                    - make world'
 850         @echo '  toolchain              - build toolchain'
 851         @echo
 852         @echo 'Configuration:'
 853         @echo '  menuconfig             - interactive curses-based configurator'
 854         @echo '  nconfig                - interactive ncurses-based configurator'
 855         @echo '  xconfig                - interactive Qt-based configurator'
 856         @echo '  gconfig                - interactive GTK-based configurator'
 857         @echo '  oldconfig              - resolve any unresolved symbols in .config'
 858         @echo '  silentoldconfig        - Same as oldconfig, but quietly, additionally update deps'
 859         @echo '  olddefconfig           - Same as silentoldconfig but sets new symbols to their default value'
 860         @echo '  randconfig             - New config with random answer to all options'
 861         @echo '  defconfig              - New config with default answer to all options'
 862         @echo '                             BR2_DEFCONFIG, if set, is used as input'
 863         @echo '  savedefconfig          - Save current config to BR2_DEFCONFIG (minimal config)'
 864         @echo '  allyesconfig           - New config where all options are accepted with yes'
 865         @echo '  allnoconfig            - New config where all options are answered with no'
 866         @echo '  randpackageconfig      - New config with random answer to package options'
 867         @echo '  allyespackageconfig    - New config where pkg options are accepted with yes'
 868         @echo '  allnopackageconfig     - New config where package options are answered with no'
 869         @echo
 870         @echo 'Package-specific:'
 871         @echo '  <pkg>                  - Build and install <pkg> and all its dependencies'
 872         @echo '  <pkg>-source           - Only download the source files for <pkg>'
 873         @echo '  <pkg>-extract          - Extract <pkg> sources'
 874         @echo '  <pkg>-patch            - Apply patches to <pkg>'
 875         @echo '  <pkg>-depends          - Build <pkg>'\''s dependencies'
 876         @echo '  <pkg>-configure        - Build <pkg> up to the configure step'
 877         @echo '  <pkg>-build            - Build <pkg> up to the build step'
 878         @echo '  <pkg>-graph-depends    - Generate a graph of <pkg>'\''s dependencies'
 879         @echo '  <pkg>-dirclean         - Remove <pkg> build directory'
 880         @echo '  <pkg>-reconfigure      - Restart the build from the configure step'
 881         @echo '  <pkg>-rebuild          - Restart the build from the build step'
 882         @echo '  <pkg>-legal-info       - Generate license information for <pkg>'
 883 ifeq ($(BR2_PACKAGE_BUSYBOX),y)
 884         @echo '  busybox-menuconfig     - Run BusyBox menuconfig'
 885 endif
 886 ifeq ($(BR2_LINUX_KERNEL),y)
 887         @echo '  linux-menuconfig       - Run Linux kernel menuconfig'
 888         @echo '  linux-savedefconfig    - Run Linux kernel savedefconfig'
 889         @echo '  linux-update-defconfig - Save the Linux configuration to the path specified'
 890         @echo '                             by BR2_LINUX_KERNEL_CUSTOM_CONFIG_FILE'
 891 endif
 892 ifeq ($(BR2_TOOLCHAIN_BUILDROOT),y)
 893         @echo '  uclibc-menuconfig      - Run uClibc menuconfig'
 894 endif
 895 ifeq ($(BR2_TARGET_BAREBOX),y)
 896         @echo '  barebox-menuconfig     - Run barebox menuconfig'
 897         @echo '  barebox-savedefconfig  - Run barebox savedefconfig'
 898 endif
 899         @echo
 900         @echo 'Documentation:'
 901         @echo '  manual                 - build manual in all formats'
 902         @echo '  manual-html            - build manual in HTML'
 903         @echo '  manual-split-html      - build manual in split HTML'
 904         @echo '  manual-pdf             - build manual in PDF'
 905         @echo '  manual-text            - build manual in text'
 906         @echo '  manual-epub            - build manual in ePub'
 907         @echo '  graph-build            - generate graphs of the build times'
 908         @echo '  graph-depends          - generate graph of the dependency tree'
 909         @echo
 910         @echo 'Miscellaneous:'
 911         @echo '  source                 - download all sources needed for offline-build'
 912         @echo '  source-check           - check selected packages for valid download URLs'
 913         @echo '  external-deps          - list external packages used'
 914         @echo '  legal-info             - generate info about license compliance'
 915         @echo
 916         @echo '  make V=0|1             - 0 => quiet build (default), 1 => verbose build'
 917         @echo '  make O=dir             - Locate all output files in "dir", including .config'
 918         @echo
 919         @echo 'For further details, see README, generate the Buildroot manual, or consult'
 920         @echo 'it on-line at http://buildroot.org/docs.html'
 921         @echo
 922
 923 list-defconfigs:
 924         @echo 'Built-in configs:'
 925         @$(foreach b, $(sort $(notdir $(wildcard $(TOPDIR)/configs/*_defconfig))), \
 926           printf "  %-35s - Build for %s\\n" $(b) $(b:_defconfig=);)
 927 ifneq ($(wildcard $(BR2_EXTERNAL)/configs/*_defconfig),)
 928         @echo
 929         @echo 'User-provided configs:'
 930         @$(foreach b, $(sort $(notdir $(wildcard $(BR2_EXTERNAL)/configs/*_defconfig))), \
 931           printf "  %-35s - Build for %s\\n" $(b) $(b:_defconfig=);)
 932 endif
 933         @echo
 934
 935 release: OUT = buildroot-$(BR2_VERSION)
 936
 937 # Create release tarballs. We need to fiddle a bit to add the generated
 938 # documentation to the git output
 939 release:
 940         git archive --format=tar --prefix=$(OUT)/ HEAD > $(OUT).tar
 941         $(MAKE) O=$(OUT) manual-html manual-text manual-pdf
 942         tar rf $(OUT).tar $(OUT)
 943         gzip -9 -c < $(OUT).tar > $(OUT).tar.gz
 944         bzip2 -9 -c < $(OUT).tar > $(OUT).tar.bz2
 945         rm -rf $(OUT) $(OUT).tar
 946
 947 print-version:
 948         @echo $(BR2_VERSION_FULL)
 949
 950 include docs/manual/manual.mk
 951 -include $(BR2_EXTERNAL)/docs/*/*.mk
 952
 953 .PHONY: $(noconfig_targets)