Makefile

   1 # Makefile for buildroot
   2 #
   3 # Copyright (C) 1999-2005 by Erik Andersen <andersen@codepoet.org>
   4 # Copyright (C) 2006-2013 by the Buildroot developers <buildroot@uclibc.org>
   5 #
   6 # This program is free software; you can redistribute it and/or modify
   7 # it under the terms of the GNU General Public License as published by
   8 # the Free Software Foundation; either version 2 of the License, or
   9 # (at your option) any later version.
  10 #
  11 # This program is distributed in the hope that it will be useful,
  12 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  14 # General Public License for more details.
  15 #
  16 # You should have received a copy of the GNU General Public License
  17 # along with this program; if not, write to the Free Software
  18 # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
  19 #
  20
  21 #--------------------------------------------------------------
  22 # Just run 'make menuconfig', configure stuff, then run 'make'.
  23 # You shouldn't need to mess with anything beyond this point...
  24 #--------------------------------------------------------------
  25
  26 # Set and export the version string
  27 export BR2_VERSION:=2013.11-git
  28
  29 # Check for minimal make version (note: this check will break at make 10.x)
  30 MIN_MAKE_VERSION=3.81
  31 ifneq ($(firstword $(sort $(MAKE_VERSION) $(MIN_MAKE_VERSION))),$(MIN_MAKE_VERSION))
  32 $(error You have make '$(MAKE_VERSION)' installed. GNU make >= $(MIN_MAKE_VERSION) is required)
  33 endif
  34
  35 export HOSTARCH := $(shell uname -m | \
  36         sed -e s/i.86/x86/ \
  37             -e s/sun4u/sparc64/ \
  38             -e s/arm.*/arm/ \
  39             -e s/sa110/arm/ \
  40             -e s/ppc64/powerpc/ \
  41             -e s/ppc/powerpc/ \
  42             -e s/macppc/powerpc/\
  43             -e s/sh.*/sh/)
  44
  45 # This top-level Makefile can *not* be executed in parallel
  46 .NOTPARALLEL:
  47
  48 # absolute path
  49 TOPDIR:=$(shell pwd)
  50 CONFIG_CONFIG_IN=Config.in
  51 CONFIG=support/kconfig
  52 DATE:=$(shell date +%Y%m%d)
  53
  54 # Compute the full local version string so packages can use it as-is
  55 # Need to export it, so it can be got from environment in children (eg. mconf)
  56 export BR2_VERSION_FULL:=$(BR2_VERSION)$(shell $(TOPDIR)/support/scripts/setlocalversion)
  57
  58 noconfig_targets:=menuconfig nconfig gconfig xconfig config oldconfig randconfig \
  59         %_defconfig allyesconfig allnoconfig silentoldconfig release \
  60         randpackageconfig allyespackageconfig allnopackageconfig \
  61         source-check print-version olddefconfig
  62
  63 # Strip quotes and then whitespaces
  64 qstrip=$(strip $(subst ",,$(1)))
  65 #"))
  66
  67 # Variables for use in Make constructs
  68 comma:=,
  69 empty:=
  70 space:=$(empty) $(empty)
  71
  72 ifneq ("$(origin O)", "command line")
  73 O:=output
  74 CONFIG_DIR:=$(TOPDIR)
  75 NEED_WRAPPER=
  76 else
  77 # other packages might also support Linux-style out of tree builds
  78 # with the O=<dir> syntax (E.G. Busybox does). As make automatically
  79 # forwards command line variable definitions those packages get very
  80 # confused. Fix this by telling make to not do so
  81 MAKEOVERRIDES =
  82 # strangely enough O is still passed to submakes with MAKEOVERRIDES
  83 # (with make 3.81 atleast), the only thing that changes is the output
  84 # of the origin function (command line -> environment).
  85 # Unfortunately some packages don't look at origin (E.G. uClibc 0.9.31+)
  86 # To really make O go away, we have to override it.
  87 override O:=$(O)
  88 CONFIG_DIR:=$(O)
  89 # we need to pass O= everywhere we call back into the toplevel makefile
  90 EXTRAMAKEARGS = O=$(O)
  91 NEED_WRAPPER=y
  92 endif
  93
  94 BUILDROOT_CONFIG=$(CONFIG_DIR)/.config
  95
  96 # Pull in the user's configuration file
  97 ifeq ($(filter $(noconfig_targets),$(MAKECMDGOALS)),)
  98 -include $(BUILDROOT_CONFIG)
  99 endif
 100
 101 # To put more focus on warnings, be less verbose as default
 102 # Use 'make V=1' to see the full commands
 103 ifdef V
 104   ifeq ("$(origin V)", "command line")
 105     KBUILD_VERBOSE=$(V)
 106   endif
 107 endif
 108 ifndef KBUILD_VERBOSE
 109   KBUILD_VERBOSE=0
 110 endif
 111
 112 ifeq ($(KBUILD_VERBOSE),1)
 113   quiet=
 114   Q=
 115 ifndef VERBOSE
 116   VERBOSE=1
 117 endif
 118 else
 119   quiet=quiet_
 120   Q=@
 121 endif
 122
 123 # we want bash as shell
 124 SHELL:=$(shell if [ -x "$$BASH" ]; then echo $$BASH; \
 125         else if [ -x /bin/bash ]; then echo /bin/bash; \
 126         else echo sh; fi; fi)
 127
 128 # kconfig uses CONFIG_SHELL
 129 CONFIG_SHELL:=$(SHELL)
 130
 131 export SHELL CONFIG_SHELL quiet Q KBUILD_VERBOSE VERBOSE
 132
 133 ifndef HOSTAR
 134 HOSTAR:=ar
 135 endif
 136 ifndef HOSTAS
 137 HOSTAS:=as
 138 endif
 139 ifndef HOSTCC
 140 HOSTCC:=gcc
 141 HOSTCC:=$(shell which $(HOSTCC) || type -p $(HOSTCC) || echo gcc)
 142 endif
 143 HOSTCC_NOCCACHE:=$(HOSTCC)
 144 ifndef HOSTCXX
 145 HOSTCXX:=g++
 146 HOSTCXX:=$(shell which $(HOSTCXX) || type -p $(HOSTCXX) || echo g++)
 147 endif
 148 HOSTCXX_NOCCACHE:=$(HOSTCXX)
 149 ifndef HOSTFC
 150 HOSTFC:=gfortran
 151 endif
 152 ifndef HOSTCPP
 153 HOSTCPP:=cpp
 154 endif
 155 ifndef HOSTLD
 156 HOSTLD:=ld
 157 endif
 158 ifndef HOSTLN
 159 HOSTLN:=ln
 160 endif
 161 ifndef HOSTNM
 162 HOSTNM:=nm
 163 endif
 164 HOSTAR:=$(shell which $(HOSTAR) || type -p $(HOSTAR) || echo ar)
 165 HOSTAS:=$(shell which $(HOSTAS) || type -p $(HOSTAS) || echo as)
 166 HOSTFC:=$(shell which $(HOSTLD) || type -p $(HOSTLD) || echo || which g77 || type -p g77 || echo gfortran)
 167 HOSTCPP:=$(shell which $(HOSTCPP) || type -p $(HOSTCPP) || echo cpp)
 168 HOSTLD:=$(shell which $(HOSTLD) || type -p $(HOSTLD) || echo ld)
 169 HOSTLN:=$(shell which $(HOSTLN) || type -p $(HOSTLN) || echo ln)
 170 HOSTNM:=$(shell which $(HOSTNM) || type -p $(HOSTNM) || echo nm)
 171
 172 export HOSTAR HOSTAS HOSTCC HOSTCXX HOSTFC HOSTLD
 173 export HOSTCC_NOCCACHE HOSTCXX_NOCCACHE
 174
 175 # Make sure pkg-config doesn't look outside the buildroot tree
 176 unexport PKG_CONFIG_PATH
 177 unexport PKG_CONFIG_SYSROOT_DIR
 178 unexport PKG_CONFIG_LIBDIR
 179
 180 # Having DESTDIR set in the environment confuses the installation
 181 # steps of some packages.
 182 unexport DESTDIR
 183
 184 # Causes breakage with packages that needs host-ruby
 185 unexport RUBYOPT
 186
 187 # bash prints the name of the directory on 'cd <dir>' if CDPATH is
 188 # set, so unset it here to not cause problems. Notice that the export
 189 # line doesn't affect the environment of $(shell ..) calls, so
 190 # explictly throw away any output from 'cd' here.
 191 export CDPATH:=
 192 BASE_DIR := $(shell mkdir -p $(O) && cd $(O) >/dev/null && pwd)
 193 $(if $(BASE_DIR),, $(error output directory "$(O)" does not exist))
 194
 195 BUILD_DIR:=$(BASE_DIR)/build
 196
 197
 198 ifeq ($(BR2_HAVE_DOT_CONFIG),y)
 199
 200 ################################################################################
 201 #
 202 # Hide troublesome environment variables from sub processes
 203 #
 204 ################################################################################
 205 unexport CROSS_COMPILE
 206 unexport ARCH
 207 unexport CC
 208 unexport CXX
 209 unexport CPP
 210 unexport CFLAGS
 211 unexport CXXFLAGS
 212 unexport GREP_OPTIONS
 213 unexport CONFIG_SITE
 214 unexport QMAKESPEC
 215 unexport TERMINFO
 216
 217 GNU_HOST_NAME:=$(shell support/gnuconfig/config.guess)
 218
 219 ################################################################################
 220 #
 221 # The list of stuff to build for the target toolchain
 222 # along with the packages to build for the target.
 223 #
 224 ################################################################################
 225
 226 ifeq ($(BR2_TOOLCHAIN_BUILDROOT),y)
 227 BASE_TARGETS += toolchain-buildroot
 228 else ifeq ($(BR2_TOOLCHAIN_EXTERNAL),y)
 229 BASE_TARGETS += toolchain-external
 230 else ifeq ($(BR2_TOOLCHAIN_CTNG),y)
 231 BASE_TARGETS += toolchain-crosstool-ng
 232 endif
 233
 234 TARGETS:=
 235
 236 # silent mode requested?
 237 QUIET:=$(if $(findstring s,$(MAKEFLAGS)),-q)
 238
 239 # Strip off the annoying quoting
 240 ARCH:=$(call qstrip,$(BR2_ARCH))
 241
 242 KERNEL_ARCH:=$(shell echo "$(ARCH)" | sed -e "s/-.*//" \
 243         -e s/i.86/i386/ -e s/sun4u/sparc64/ \
 244         -e s/arcle/arc/ \
 245         -e s/arceb/arc/ \
 246         -e s/arm.*/arm/ -e s/sa110/arm/ \
 247         -e s/aarch64/arm64/ \
 248         -e s/bfin/blackfin/ \
 249         -e s/parisc64/parisc/ \
 250         -e s/powerpc64/powerpc/ \
 251         -e s/ppc.*/powerpc/ -e s/mips.*/mips/ \
 252         -e s/sh.*/sh/)
 253
 254 ZCAT:=$(call qstrip,$(BR2_ZCAT))
 255 BZCAT:=$(call qstrip,$(BR2_BZCAT))
 256 XZCAT:=$(call qstrip,$(BR2_XZCAT))
 257 TAR_OPTIONS=$(call qstrip,$(BR2_TAR_OPTIONS)) -xf
 258
 259 # packages compiled for the host go here
 260 HOST_DIR:=$(call qstrip,$(BR2_HOST_DIR))
 261
 262 # locales to generate
 263 GENERATE_LOCALE=$(call qstrip,$(BR2_GENERATE_LOCALE))
 264
 265 # stamp (dependency) files go here
 266 STAMP_DIR:=$(BASE_DIR)/stamps
 267
 268 BINARIES_DIR:=$(BASE_DIR)/images
 269 TARGET_DIR:=$(BASE_DIR)/target
 270 TARGET_SKELETON=$(TOPDIR)/system/skeleton
 271
 272 LEGAL_INFO_DIR=$(BASE_DIR)/legal-info
 273 REDIST_SOURCES_DIR=$(LEGAL_INFO_DIR)/sources
 274 LICENSE_FILES_DIR=$(LEGAL_INFO_DIR)/licenses
 275 LEGAL_MANIFEST_CSV=$(LEGAL_INFO_DIR)/manifest.csv
 276 LEGAL_LICENSES_TXT=$(LEGAL_INFO_DIR)/licenses.txt
 277 LEGAL_WARNINGS=$(LEGAL_INFO_DIR)/.warnings
 278 LEGAL_REPORT=$(LEGAL_INFO_DIR)/README
 279
 280 # Location of a file giving a big fat warning that output/target
 281 # should not be used as the root filesystem.
 282 TARGET_DIR_WARNING_FILE=$(TARGET_DIR)/THIS_IS_NOT_YOUR_ROOT_FILESYSTEM
 283
 284 ifeq ($(BR2_CCACHE),y)
 285 CCACHE:=$(HOST_DIR)/usr/bin/ccache
 286 BUILDROOT_CACHE_DIR = $(call qstrip,$(BR2_CCACHE_DIR))
 287 export BUILDROOT_CACHE_DIR
 288 HOSTCC  := $(CCACHE) $(HOSTCC)
 289 HOSTCXX := $(CCACHE) $(HOSTCXX)
 290 endif
 291
 292 # Scripts in support/ or post-build scripts may need to reference
 293 # these locations, so export them so it is easier to use
 294 export BUILDROOT_CONFIG
 295 export TARGET_DIR
 296 export STAGING_DIR
 297 export HOST_DIR
 298 export BINARIES_DIR
 299 export BASE_DIR
 300
 301 ################################################################################
 302 #
 303 # You should probably leave this stuff alone unless you know
 304 # what you are doing.
 305 #
 306 ################################################################################
 307
 308 all: world
 309
 310 # Include legacy before the other things, because package .mk files
 311 # may rely on it.
 312 ifneq ($(BR2_DEPRECATED),y)
 313 include Makefile.legacy
 314 endif
 315
 316 include package/Makefile.in
 317 include support/dependencies/dependencies.mk
 318
 319 # We also need the various per-package makefiles, which also add
 320 # each selected package to TARGETS if that package was selected
 321 # in the .config file.
 322 ifeq ($(BR2_TOOLCHAIN_BUILDROOT),y)
 323 include toolchain/toolchain-buildroot.mk
 324 else ifeq ($(BR2_TOOLCHAIN_EXTERNAL),y)
 325 include toolchain/toolchain-external.mk
 326 else ifeq ($(BR2_TOOLCHAIN_CTNG),y)
 327 include toolchain/toolchain-crosstool-ng.mk
 328 endif
 329
 330 # Include the package override file if one has been provided in the
 331 # configuration.
 332 PACKAGE_OVERRIDE_FILE=$(call qstrip,$(BR2_PACKAGE_OVERRIDE_FILE))
 333 ifneq ($(PACKAGE_OVERRIDE_FILE),)
 334 -include $(PACKAGE_OVERRIDE_FILE)
 335 endif
 336
 337 include $(sort $(wildcard package/*/*.mk))
 338
 339 include boot/common.mk
 340 include linux/linux.mk
 341 include system/system.mk
 342
 343 TARGETS+=target-finalize
 344
 345 ifeq ($(BR2_ENABLE_LOCALE_PURGE),y)
 346 TARGETS+=target-purgelocales
 347 endif
 348
 349 ifeq ($(BR2_TOOLCHAIN_USES_GLIBC),y)
 350 ifneq ($(GENERATE_LOCALE),)
 351 TARGETS+=target-generatelocales
 352 endif
 353 endif
 354
 355 ifeq ($(BR2_ECLIPSE_REGISTER),y)
 356 TARGETS+=toolchain-eclipse-register
 357 endif
 358
 359 include fs/common.mk
 360
 361 TARGETS+=target-post-image
 362
 363 TARGETS_CLEAN:=$(patsubst %,%-clean,$(TARGETS))
 364 TARGETS_SOURCE:=$(patsubst %,%-source,$(TARGETS) $(BASE_TARGETS))
 365 TARGETS_DIRCLEAN:=$(patsubst %,%-dirclean,$(TARGETS))
 366 TARGETS_ALL:=$(patsubst %,__real_tgt_%,$(TARGETS))
 367
 368 # host-* dependencies have to be handled specially, as those aren't
 369 # visible in Kconfig and hence not added to a variable like TARGETS.
 370 # instead, find all the host-* targets listed in each <PKG>_DEPENDENCIES
 371 # variable for each enabled target.
 372 # Notice: this only works for newstyle gentargets/autotargets packages
 373 TARGETS_HOST_DEPS = $(sort $(filter host-%,$(foreach dep,\
 374                 $(addsuffix _DEPENDENCIES,$(call UPPERCASE,$(TARGETS))),\
 375                 $($(dep)))))
 376 # Host packages can in turn have their own dependencies. Likewise find
 377 # all the package names listed in the HOST_<PKG>_DEPENDENCIES for each
 378 # host package found above. Ideally this should be done recursively until
 379 # no more packages are found, but that's hard to do in make, so limit to
 380 # 1 level for now.
 381 HOST_DEPS = $(sort $(foreach dep,\
 382                 $(addsuffix _DEPENDENCIES,$(call UPPERCASE,$(TARGETS_HOST_DEPS))),\
 383                 $($(dep))))
 384 HOST_SOURCE += $(addsuffix -source,$(sort $(TARGETS_HOST_DEPS) $(HOST_DEPS)))
 385
 386 TARGETS_LEGAL_INFO:=$(patsubst %,%-legal-info,\
 387                 $(TARGETS) $(BASE_TARGETS) $(TARGETS_HOST_DEPS) $(HOST_DEPS))))
 388
 389 # all targets depend on the crosscompiler and it's prerequisites
 390 $(TARGETS_ALL): __real_tgt_%: $(BASE_TARGETS) %
 391
 392 dirs: $(BUILD_DIR) $(STAGING_DIR) $(TARGET_DIR) \
 393         $(HOST_DIR) $(BINARIES_DIR) $(STAMP_DIR)
 394
 395 $(BASE_TARGETS): dirs $(HOST_DIR)/usr/share/buildroot/toolchainfile.cmake
 396
 397 $(BUILD_DIR)/buildroot-config/auto.conf: $(BUILDROOT_CONFIG)
 398         $(MAKE) $(EXTRAMAKEARGS) HOSTCC="$(HOSTCC_NOCCACHE)" HOSTCXX="$(HOSTCXX_NOCCACHE)" silentoldconfig
 399
 400 prepare: $(BUILD_DIR)/buildroot-config/auto.conf
 401
 402 toolchain: prepare dirs dependencies $(BASE_TARGETS)
 403
 404 world: toolchain $(TARGETS_ALL)
 405
 406 .PHONY: all world toolchain dirs clean distclean source outputmakefile \
 407         legal-info legal-info-prepare legal-info-clean printvars \
 408         $(BASE_TARGETS) $(TARGETS) $(TARGETS_ALL) \
 409         $(TARGETS_CLEAN) $(TARGETS_DIRCLEAN) $(TARGETS_SOURCE) $(TARGETS_LEGAL_INFO) \
 410         $(BUILD_DIR) $(STAGING_DIR) $(TARGET_DIR) \
 411         $(HOST_DIR) $(BINARIES_DIR) $(STAMP_DIR)
 412
 413 ################################################################################
 414 #
 415 # staging and target directories do NOT list these as
 416 # dependencies anywhere else
 417 #
 418 ################################################################################
 419 $(BUILD_DIR) $(HOST_DIR) $(BINARIES_DIR) $(STAMP_DIR) $(LEGAL_INFO_DIR) $(REDIST_SOURCES_DIR):
 420         @mkdir -p $@
 421
 422 # We make a symlink lib32->lib or lib64->lib as appropriate
 423 # MIPS64/n32 requires lib32 even though it's a 64-bit arch.
 424 ifeq ($(BR2_ARCH_IS_64)$(BR2_MIPS_NABI32),y)
 425 LIB_SYMLINK = lib64
 426 else
 427 LIB_SYMLINK = lib32
 428 endif
 429
 430 $(STAGING_DIR):
 431         @mkdir -p $(STAGING_DIR)/bin
 432         @mkdir -p $(STAGING_DIR)/lib
 433         @ln -snf lib $(STAGING_DIR)/$(LIB_SYMLINK)
 434         @mkdir -p $(STAGING_DIR)/usr/lib
 435         @ln -snf lib $(STAGING_DIR)/usr/$(LIB_SYMLINK)
 436         @mkdir -p $(STAGING_DIR)/usr/include
 437         @mkdir -p $(STAGING_DIR)/usr/bin
 438         @ln -snf $(STAGING_DIR) $(BASE_DIR)/staging
 439
 440 ifeq ($(BR2_ROOTFS_SKELETON_CUSTOM),y)
 441 TARGET_SKELETON=$(BR2_ROOTFS_SKELETON_CUSTOM_PATH)
 442 endif
 443
 444 $(BUILD_DIR)/.root:
 445         mkdir -p $(TARGET_DIR)
 446         rsync -a \
 447                 --exclude .empty --exclude .svn --exclude .git \
 448                 --exclude .hg --exclude=CVS --exclude '*~' \
 449                 $(TARGET_SKELETON)/ $(TARGET_DIR)/
 450         cp support/misc/target-dir-warning.txt $(TARGET_DIR_WARNING_FILE)
 451         @ln -snf lib $(TARGET_DIR)/$(LIB_SYMLINK)
 452         @mkdir -p $(TARGET_DIR)/usr
 453         @ln -snf lib $(TARGET_DIR)/usr/$(LIB_SYMLINK)
 454         touch $@
 455
 456 $(TARGET_DIR): $(BUILD_DIR)/.root
 457
 458 STRIP_FIND_CMD = find $(TARGET_DIR)
 459 ifneq (,$(call qstrip,$(BR2_STRIP_EXCLUDE_DIRS)))
 460 STRIP_FIND_CMD += \( $(call finddirclauses,$(TARGET_DIR),$(call qstrip,$(BR2_STRIP_EXCLUDE_DIRS))) \) -prune -o
 461 endif
 462 STRIP_FIND_CMD += -type f -perm /111
 463 STRIP_FIND_CMD += -not \( $(call findfileclauses,libpthread*.so* $(call qstrip,$(BR2_STRIP_EXCLUDE_FILES))) \) -print
 464
 465 target-finalize:
 466         rm -rf $(TARGET_DIR)/usr/include $(TARGET_DIR)/usr/share/aclocal \
 467                 $(TARGET_DIR)/usr/lib/pkgconfig $(TARGET_DIR)/usr/share/pkgconfig \
 468                 $(TARGET_DIR)/usr/lib/cmake $(TARGET_DIR)/usr/share/cmake
 469         find $(TARGET_DIR)/usr/{lib,share}/ -name '*.cmake' -print0 | xargs -0 rm -f
 470         find $(TARGET_DIR)/lib \( -name '*.a' -o -name '*.la' \) -print0 | xargs -0 rm -f
 471         find $(TARGET_DIR)/usr/lib \( -name '*.a' -o -name '*.la' \) -print0 | xargs -0 rm -f
 472 ifneq ($(BR2_PACKAGE_GDB),y)
 473         rm -rf $(TARGET_DIR)/usr/share/gdb
 474 endif
 475 ifneq ($(BR2_HAVE_DOCUMENTATION),y)
 476         rm -rf $(TARGET_DIR)/usr/man $(TARGET_DIR)/usr/share/man
 477         rm -rf $(TARGET_DIR)/usr/info $(TARGET_DIR)/usr/share/info
 478         rm -rf $(TARGET_DIR)/usr/doc $(TARGET_DIR)/usr/share/doc
 479         rm -rf $(TARGET_DIR)/usr/share/gtk-doc
 480         -rmdir $(TARGET_DIR)/usr/share 2>/dev/null
 481 endif
 482 ifeq ($(BR2_PACKAGE_PYTHON_PY_ONLY),y)
 483         find $(TARGET_DIR)/usr/lib/ -name '*.pyc' -print0 | xargs -0 rm -f
 484 endif
 485 ifeq ($(BR2_PACKAGE_PYTHON_PYC_ONLY),y)
 486         find $(TARGET_DIR)/usr/lib/ -name '*.py' -print0 | xargs -0 rm -f
 487 endif
 488         $(STRIP_FIND_CMD) | xargs $(STRIPCMD) 2>/dev/null || true
 489         if test -d $(TARGET_DIR)/lib/modules; then \
 490                 find $(TARGET_DIR)/lib/modules -type f -name '*.ko' | \
 491                 xargs -r $(KSTRIPCMD); fi
 492
 493 # See http://sourceware.org/gdb/wiki/FAQ, "GDB does not see any threads
 494 # besides the one in which crash occurred; or SIGTRAP kills my program when
 495 # I set a breakpoint"
 496 ifeq ($(BR2_TOOLCHAIN_HAS_THREADS),y)
 497         find $(TARGET_DIR)/lib -type f -name 'libpthread*.so*' | \
 498                 xargs -r $(STRIPCMD) $(STRIP_STRIP_DEBUG)
 499 endif
 500
 501         mkdir -p $(TARGET_DIR)/etc
 502         # Mandatory configuration file and auxilliary cache directory
 503         # for recent versions of ldconfig
 504         touch $(TARGET_DIR)/etc/ld.so.conf
 505         mkdir -p $(TARGET_DIR)/var/cache/ldconfig
 506         if [ -x "$(TARGET_CROSS)ldconfig" ]; \
 507         then \
 508                 $(TARGET_CROSS)ldconfig -r $(TARGET_DIR); \
 509         else \
 510                 /sbin/ldconfig -r $(TARGET_DIR); \
 511         fi
 512         ( \
 513                 echo "NAME=Buildroot"; \
 514                 echo "VERSION=$(BR2_VERSION_FULL)"; \
 515                 echo "ID=buildroot"; \
 516                 echo "VERSION_ID=$(BR2_VERSION)"; \
 517                 echo "PRETTY_NAME=\"Buildroot $(BR2_VERSION)\"" \
 518         ) >  $(TARGET_DIR)/etc/os-release
 519
 520         @$(foreach d, $(call qstrip,$(BR2_ROOTFS_OVERLAY)), \
 521                 $(call MESSAGE,"Copying overlay $(d)"); \
 522                 rsync -a \
 523                         --exclude .empty --exclude .svn --exclude .git \
 524                         --exclude .hg --exclude=CVS --exclude '*~' \
 525                         $(d)/ $(TARGET_DIR)$(sep))
 526
 527         @$(foreach s, $(call qstrip,$(BR2_ROOTFS_POST_BUILD_SCRIPT)), \
 528                 $(call MESSAGE,"Executing post-build script $(s)"); \
 529                 $(s) $(TARGET_DIR) $(call qstrip,$(BR2_ROOTFS_POST_SCRIPT_ARGS))$(sep))
 530
 531 ifeq ($(BR2_ENABLE_LOCALE_PURGE),y)
 532 LOCALE_WHITELIST=$(BUILD_DIR)/locales.nopurge
 533 LOCALE_NOPURGE=$(call qstrip,$(BR2_ENABLE_LOCALE_WHITELIST))
 534
 535 target-purgelocales:
 536         rm -f $(LOCALE_WHITELIST)
 537         for i in $(LOCALE_NOPURGE); do echo $$i >> $(LOCALE_WHITELIST); done
 538
 539         for dir in $(wildcard $(addprefix $(TARGET_DIR),/usr/share/locale /usr/share/X11/locale /usr/man /usr/share/man)); \
 540         do \
 541                 for lang in $$(cd $$dir; ls .|grep -v man); \
 542                 do \
 543                         grep -qx $$lang $(LOCALE_WHITELIST) || rm -rf $$dir/$$lang; \
 544                 done; \
 545         done
 546 endif
 547
 548 ifneq ($(GENERATE_LOCALE),)
 549 # Generate locale data. Basically, we call the localedef program
 550 # (built by the host-localedef package) for each locale. The input
 551 # data comes preferably from the toolchain, or if the toolchain does
 552 # not have them (Linaro toolchains), we use the ones available on the
 553 # host machine.
 554 target-generatelocales: host-localedef
 555         $(Q)mkdir -p $(TARGET_DIR)/usr/lib/locale/
 556         $(Q)for locale in $(GENERATE_LOCALE) ; do \
 557                 inputfile=`echo $${locale} | cut -f1 -d'.'` ; \
 558                 charmap=`echo $${locale} | cut -f2 -d'.' -s` ; \
 559                 if test -z "$${charmap}" ; then \
 560                         charmap="UTF-8" ; \
 561                 fi ; \
 562                 echo "Generating locale $${inputfile}.$${charmap}" ; \
 563                 I18NPATH=$(STAGING_DIR)/usr/share/i18n:/usr/share/i18n \
 564                 $(HOST_DIR)/usr/bin/localedef \
 565                         --prefix=$(TARGET_DIR) \
 566                         --`echo $(BR2_ENDIAN) | tr [A-Z] [a-z]`-endian \
 567                         -i $${inputfile} -f $${charmap} \
 568                         $${locale} ; \
 569         done
 570 endif
 571
 572 target-post-image:
 573         @$(foreach s, $(call qstrip,$(BR2_ROOTFS_POST_IMAGE_SCRIPT)), \
 574                 $(call MESSAGE,"Executing post-image script $(s)"); \
 575                 $(s) $(BINARIES_DIR) $(call qstrip,$(BR2_ROOTFS_POST_SCRIPT_ARGS))$(sep))
 576
 577 toolchain-eclipse-register:
 578         ./support/scripts/eclipse-register-toolchain `readlink -f $(O)` $(notdir $(TARGET_CROSS)) $(BR2_ARCH)
 579
 580 source: dirs $(TARGETS_SOURCE) $(HOST_SOURCE)
 581
 582 external-deps:
 583         @$(MAKE) -Bs DL_MODE=SHOW_EXTERNAL_DEPS $(EXTRAMAKEARGS) source | sort -u
 584
 585 legal-info-clean:
 586         @rm -fr $(LEGAL_INFO_DIR)
 587
 588 legal-info-prepare: $(LEGAL_INFO_DIR)
 589         @$(call MESSAGE,"Collecting legal info")
 590         @$(call legal-license-file,buildroot,COPYING,COPYING)
 591         @$(call legal-manifest,PACKAGE,VERSION,LICENSE,LICENSE FILES,SOURCE ARCHIVE)
 592         @$(call legal-manifest,buildroot,$(BR2_VERSION_FULL),GPLv2+,COPYING,not saved)
 593         @$(call legal-warning,the Buildroot source code has not been saved)
 594         @$(call legal-warning,the toolchain has not been saved)
 595         @cp $(BUILDROOT_CONFIG) $(LEGAL_INFO_DIR)/buildroot.config
 596
 597 legal-info: dirs legal-info-clean legal-info-prepare $(REDIST_SOURCES_DIR) \
 598                 $(TARGETS_LEGAL_INFO)
 599         @cat support/legal-info/README.header >>$(LEGAL_REPORT)
 600         @if [ -r $(LEGAL_WARNINGS) ]; then \
 601                 cat support/legal-info/README.warnings-header \
 602                         $(LEGAL_WARNINGS) >>$(LEGAL_REPORT); \
 603                 cat $(LEGAL_WARNINGS); fi
 604         @echo "Legal info produced in $(LEGAL_INFO_DIR)"
 605         @rm -f $(LEGAL_WARNINGS)
 606
 607 show-targets:
 608         @echo $(TARGETS)
 609
 610 else # ifeq ($(BR2_HAVE_DOT_CONFIG),y)
 611
 612 all: menuconfig
 613
 614 endif # ifeq ($(BR2_HAVE_DOT_CONFIG),y)
 615
 616 # configuration
 617 # ---------------------------------------------------------------------------
 618
 619 HOSTCFLAGS=$(CFLAGS_FOR_BUILD)
 620 export HOSTCFLAGS
 621
 622 $(BUILD_DIR)/buildroot-config/%onf:
 623         mkdir -p $(@D)/lxdialog
 624         $(MAKE) CC="$(HOSTCC_NOCCACHE)" HOSTCC="$(HOSTCC_NOCCACHE)" obj=$(@D) -C $(CONFIG) -f Makefile.br $(@F)
 625
 626 DEFCONFIG = $(call qstrip,$(BR2_DEFCONFIG))
 627
 628 # We don't want to fully expand BR2_DEFCONFIG here, so Kconfig will
 629 # recognize that if it's still at its default $(CONFIG_DIR)/defconfig
 630 COMMON_CONFIG_ENV = \
 631         BR2_DEFCONFIG='$(call qstrip,$(value BR2_DEFCONFIG))' \
 632         KCONFIG_AUTOCONFIG=$(BUILD_DIR)/buildroot-config/auto.conf \
 633         KCONFIG_AUTOHEADER=$(BUILD_DIR)/buildroot-config/autoconf.h \
 634         KCONFIG_TRISTATE=$(BUILD_DIR)/buildroot-config/tristate.config \
 635         BUILDROOT_CONFIG=$(BUILDROOT_CONFIG)
 636
 637 xconfig: $(BUILD_DIR)/buildroot-config/qconf outputmakefile
 638         @mkdir -p $(BUILD_DIR)/buildroot-config
 639         @$(COMMON_CONFIG_ENV) $< $(CONFIG_CONFIG_IN)
 640
 641 gconfig: $(BUILD_DIR)/buildroot-config/gconf outputmakefile
 642         @mkdir -p $(BUILD_DIR)/buildroot-config
 643         @$(COMMON_CONFIG_ENV) srctree=$(TOPDIR) $< $(CONFIG_CONFIG_IN)
 644
 645 menuconfig: $(BUILD_DIR)/buildroot-config/mconf outputmakefile
 646         @mkdir -p $(BUILD_DIR)/buildroot-config
 647         @$(COMMON_CONFIG_ENV) $< $(CONFIG_CONFIG_IN)
 648
 649 nconfig: $(BUILD_DIR)/buildroot-config/nconf outputmakefile
 650         @mkdir -p $(BUILD_DIR)/buildroot-config
 651         @$(COMMON_CONFIG_ENV) $< $(CONFIG_CONFIG_IN)
 652
 653 config: $(BUILD_DIR)/buildroot-config/conf outputmakefile
 654         @mkdir -p $(BUILD_DIR)/buildroot-config
 655         @$(COMMON_CONFIG_ENV) $< $(CONFIG_CONFIG_IN)
 656
 657 oldconfig: $(BUILD_DIR)/buildroot-config/conf outputmakefile
 658         mkdir -p $(BUILD_DIR)/buildroot-config
 659         @$(COMMON_CONFIG_ENV) $< --oldconfig $(CONFIG_CONFIG_IN)
 660
 661 randconfig: $(BUILD_DIR)/buildroot-config/conf outputmakefile
 662         @mkdir -p $(BUILD_DIR)/buildroot-config
 663         @$(COMMON_CONFIG_ENV) $< --randconfig $(CONFIG_CONFIG_IN)
 664
 665 allyesconfig: $(BUILD_DIR)/buildroot-config/conf outputmakefile
 666         @mkdir -p $(BUILD_DIR)/buildroot-config
 667         @$(COMMON_CONFIG_ENV) $< --allyesconfig $(CONFIG_CONFIG_IN)
 668
 669 allnoconfig: $(BUILD_DIR)/buildroot-config/conf outputmakefile
 670         @mkdir -p $(BUILD_DIR)/buildroot-config
 671         @$(COMMON_CONFIG_ENV) $< --allnoconfig $(CONFIG_CONFIG_IN)
 672
 673 randpackageconfig: $(BUILD_DIR)/buildroot-config/conf outputmakefile
 674         @mkdir -p $(BUILD_DIR)/buildroot-config
 675         @grep -v BR2_PACKAGE_ $(BUILDROOT_CONFIG) > $(CONFIG_DIR)/.config.nopkg
 676         @grep '^config BR2_PACKAGE_' Config.in.legacy | \
 677                 while read config pkg; do \
 678                 echo "# $$pkg is not set" >> $(CONFIG_DIR)/.config.nopkg; done
 679         @$(COMMON_CONFIG_ENV) \
 680                 KCONFIG_ALLCONFIG=$(CONFIG_DIR)/.config.nopkg \
 681                 $< --randconfig $(CONFIG_CONFIG_IN)
 682         @rm -f $(CONFIG_DIR)/.config.nopkg
 683
 684 allyespackageconfig: $(BUILD_DIR)/buildroot-config/conf outputmakefile
 685         @mkdir -p $(BUILD_DIR)/buildroot-config
 686         @grep -v BR2_PACKAGE_ $(BUILDROOT_CONFIG) > $(CONFIG_DIR)/.config.nopkg
 687         @grep '^config BR2_PACKAGE_' Config.in.legacy | \
 688                 while read config pkg; do \
 689                 echo "# $$pkg is not set" >> $(CONFIG_DIR)/.config.nopkg; done
 690         @$(COMMON_CONFIG_ENV) \
 691                 KCONFIG_ALLCONFIG=$(CONFIG_DIR)/.config.nopkg \
 692                 $< --allyesconfig $(CONFIG_CONFIG_IN)
 693         @rm -f $(CONFIG_DIR)/.config.nopkg
 694
 695 allnopackageconfig: $(BUILD_DIR)/buildroot-config/conf outputmakefile
 696         @mkdir -p $(BUILD_DIR)/buildroot-config
 697         @grep -v BR2_PACKAGE_ $(BUILDROOT_CONFIG) > $(CONFIG_DIR)/.config.nopkg
 698         @$(COMMON_CONFIG_ENV) \
 699                 KCONFIG_ALLCONFIG=$(CONFIG_DIR)/.config.nopkg \
 700                 $< --allnoconfig $(CONFIG_CONFIG_IN)
 701         @rm -f $(CONFIG_DIR)/.config.nopkg
 702
 703 silentoldconfig: $(BUILD_DIR)/buildroot-config/conf outputmakefile
 704         @mkdir -p $(BUILD_DIR)/buildroot-config
 705         $(COMMON_CONFIG_ENV) $< --silentoldconfig $(CONFIG_CONFIG_IN)
 706
 707 olddefconfig: $(BUILD_DIR)/buildroot-config/conf outputmakefile
 708         @mkdir -p $(BUILD_DIR)/buildroot-config
 709         $(COMMON_CONFIG_ENV) $< --olddefconfig $(CONFIG_CONFIG_IN)
 710
 711 defconfig: $(BUILD_DIR)/buildroot-config/conf outputmakefile
 712         @mkdir -p $(BUILD_DIR)/buildroot-config
 713         @$(COMMON_CONFIG_ENV) $< --defconfig$(if $(DEFCONFIG),=$(DEFCONFIG)) $(CONFIG_CONFIG_IN)
 714
 715 %_defconfig: $(BUILD_DIR)/buildroot-config/conf $(TOPDIR)/configs/%_defconfig outputmakefile
 716         @mkdir -p $(BUILD_DIR)/buildroot-config
 717         @$(COMMON_CONFIG_ENV) $< --defconfig=$(TOPDIR)/configs/$@ $(CONFIG_CONFIG_IN)
 718
 719 savedefconfig: $(BUILD_DIR)/buildroot-config/conf outputmakefile
 720         @mkdir -p $(BUILD_DIR)/buildroot-config
 721         @$(COMMON_CONFIG_ENV) $< \
 722                 --savedefconfig=$(if $(DEFCONFIG),$(DEFCONFIG),$(CONFIG_DIR)/defconfig) \
 723                 $(CONFIG_CONFIG_IN)
 724
 725 # check if download URLs are outdated
 726 source-check:
 727         $(MAKE) DL_MODE=SOURCE_CHECK $(EXTRAMAKEARGS) source
 728
 729 .PHONY: defconfig savedefconfig
 730
 731 ################################################################################
 732 #
 733 # Cleanup and misc junk
 734 #
 735 ################################################################################
 736
 737 # outputmakefile generates a Makefile in the output directory, if using a
 738 # separate output directory. This allows convenient use of make in the
 739 # output directory.
 740 outputmakefile:
 741 ifeq ($(NEED_WRAPPER),y)
 742         $(Q)$(TOPDIR)/support/scripts/mkmakefile $(TOPDIR) $(O)
 743 endif
 744
 745 # printvars prints all the variables currently defined in our Makefiles
 746 printvars:
 747         @$(foreach V, \
 748                 $(sort $(.VARIABLES)), \
 749                 $(if $(filter-out environment% default automatic, \
 750                                 $(origin $V)), \
 751                 $(info $V=$($V) ($(value $V)))))
 752
 753 clean:
 754         rm -rf $(STAGING_DIR) $(TARGET_DIR) $(BINARIES_DIR) $(HOST_DIR) \
 755                 $(STAMP_DIR) $(BUILD_DIR) $(BASE_DIR)/staging \
 756                 $(LEGAL_INFO_DIR)
 757
 758 distclean: clean
 759 ifeq ($(DL_DIR),$(TOPDIR)/dl)
 760         rm -rf $(DL_DIR)
 761 endif
 762 ifeq ($(O),output)
 763         rm -rf $(O)
 764 endif
 765         rm -rf $(BUILDROOT_CONFIG) $(CONFIG_DIR)/.config.old $(CONFIG_DIR)/.auto.deps
 766
 767 help:
 768         @echo 'Cleaning:'
 769         @echo '  clean                  - delete all files created by build'
 770         @echo '  distclean              - delete all non-source files (including .config)'
 771         @echo
 772         @echo 'Build:'
 773         @echo '  all                    - make world'
 774         @echo '  toolchain              - build toolchain'
 775         @echo '  <package>-rebuild      - force recompile <package>'
 776         @echo '  <package>-reconfigure  - force reconfigure <package>'
 777         @echo
 778         @echo 'Configuration:'
 779         @echo '  menuconfig             - interactive curses-based configurator'
 780         @echo '  nconfig                - interactive ncurses-based configurator'
 781         @echo '  xconfig                - interactive Qt-based configurator'
 782         @echo '  gconfig                - interactive GTK-based configurator'
 783         @echo '  oldconfig              - resolve any unresolved symbols in .config'
 784         @echo '  silentoldconfig        - Same as oldconfig, but quietly, additionally update deps'
 785         @echo '  olddefconfig           - Same as silentoldconfig but sets new symbols to their default value'
 786         @echo '  randconfig             - New config with random answer to all options'
 787         @echo '  defconfig              - New config with default answer to all options'
 788         @echo '                             BR2_DEFCONFIG, if set, is used as input'
 789         @echo '  savedefconfig          - Save current config as ./defconfig (minimal config)'
 790         @echo '  allyesconfig           - New config where all options are accepted with yes'
 791         @echo '  allnoconfig            - New config where all options are answered with no'
 792         @echo '  randpackageconfig      - New config with random answer to package options'
 793         @echo '  allyespackageconfig    - New config where pkg options are accepted with yes'
 794         @echo '  allnopackageconfig     - New config where package options are answered with no'
 795 ifeq ($(BR2_PACKAGE_BUSYBOX),y)
 796         @echo '  busybox-menuconfig     - Run BusyBox menuconfig'
 797 endif
 798 ifeq ($(BR2_LINUX_KERNEL),y)
 799         @echo '  linux-menuconfig       - Run Linux kernel menuconfig'
 800         @echo '  linux-savedefconfig    - Run Linux kernel savedefconfig'
 801 endif
 802 ifeq ($(BR2_TOOLCHAIN_BUILDROOT),y)
 803         @echo '  uclibc-menuconfig      - Run uClibc menuconfig'
 804 endif
 805 ifeq ($(BR2_TOOLCHAIN_CTNG),y)
 806         @echo '  ctng-menuconfig        - Run crosstool-NG menuconfig'
 807 endif
 808 ifeq ($(BR2_TARGET_BAREBOX),y)
 809         @echo '  barebox-menuconfig     - Run barebox menuconfig'
 810         @echo '  barebox-savedefconfig  - Run barebox savedefconfig'
 811 endif
 812         @echo
 813         @echo 'Documentation:'
 814         @echo '  manual                 - build manual in all formats'
 815         @echo '  manual-html            - build manual in HTML'
 816         @echo '  manual-split-html      - build manual in split HTML'
 817         @echo '  manual-pdf             - build manual in PDF'
 818         @echo '  manual-txt             - build manual in txt'
 819         @echo '  manual-epub            - build manual in ePub'
 820         @echo
 821         @echo 'Miscellaneous:'
 822         @echo '  source                 - download all sources needed for offline-build'
 823         @echo '  source-check           - check selected packages for valid download URLs'
 824         @echo '  external-deps          - list external packages used'
 825         @echo '  legal-info             - generate info about license compliance'
 826         @echo
 827         @echo '  make V=0|1             - 0 => quiet build (default), 1 => verbose build'
 828         @echo '  make O=dir             - Locate all output files in "dir", including .config'
 829         @echo
 830         @$(foreach b, $(sort $(notdir $(wildcard $(TOPDIR)/configs/*_defconfig))), \
 831           printf "  %-35s - Build for %s\\n" $(b) $(b:_defconfig=);)
 832         @echo
 833         @echo 'See docs/README, or generate the Buildroot manual for further details'
 834         @echo
 835
 836 release: OUT=buildroot-$(BR2_VERSION)
 837
 838 # Create release tarballs. We need to fiddle a bit to add the generated
 839 # documentation to the git output
 840 release:
 841         git archive --format=tar --prefix=$(OUT)/ HEAD > $(OUT).tar
 842         $(MAKE) O=$(OUT) manual-html manual-txt manual-pdf
 843         tar rf $(OUT).tar $(OUT)
 844         gzip -9 -c < $(OUT).tar > $(OUT).tar.gz
 845         bzip2 -9 -c < $(OUT).tar > $(OUT).tar.bz2
 846         rm -rf $(OUT) $(OUT).tar
 847
 848 print-version:
 849         @echo $(BR2_VERSION_FULL)
 850
 851 include docs/manual/manual.mk
 852
 853 .PHONY: $(noconfig_targets)