Makefile 40 KB

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  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) 2014-2017 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. # Just run 'make menuconfig', configure stuff, then run 'make'.
  23. # You shouldn't need to mess with anything beyond this point...
  24. #--------------------------------------------------------------
  25. # Delete default rules. We don't use them. This saves a bit of time.
  26. .SUFFIXES:
  27. # we want bash as shell
  28. SHELL := $(shell if [ -x "$$BASH" ]; then echo $$BASH; \
  29. else if [ -x /bin/bash ]; then echo /bin/bash; \
  30. else echo sh; fi; fi)
  31. # Set O variable if not already done on the command line;
  32. # or avoid confusing packages that can use the O=<dir> syntax for out-of-tree
  33. # build by preventing it from being forwarded to sub-make calls.
  34. ifneq ("$(origin O)", "command line")
  35. O := $(CURDIR)/output
  36. endif
  37. # Check if the current Buildroot execution meets all the pre-requisites.
  38. # If they are not met, Buildroot will actually do its job in a sub-make meeting
  39. # its pre-requisites, which are:
  40. # 1- Permissive enough umask:
  41. # Wrong or too restrictive umask will prevent Buildroot and packages from
  42. # creating files and directories.
  43. # 2- Absolute canonical CWD (i.e. $(CURDIR)):
  44. # Otherwise, some packages will use CWD as-is, others will compute its
  45. # absolute canonical path. This makes harder tracking and fixing host
  46. # machine path leaks.
  47. # 3- Absolute canonical output location (i.e. $(O)):
  48. # For the same reason as the one for CWD.
  49. # Remove the trailing '/.' from $(O) as it can be added by the makefile wrapper
  50. # installed in the $(O) directory.
  51. # Also remove the trailing '/' the user can set when on the command line.
  52. override O := $(patsubst %/,%,$(patsubst %.,%,$(O)))
  53. # Make sure $(O) actually exists before calling realpath on it; this is to
  54. # avoid empty CANONICAL_O in case on non-existing entry.
  55. CANONICAL_O := $(shell mkdir -p $(O) >/dev/null 2>&1)$(realpath $(O))
  56. CANONICAL_CURDIR = $(realpath $(CURDIR))
  57. REQ_UMASK = 0022
  58. # Make sure O= is passed (with its absolute canonical path) everywhere the
  59. # toplevel makefile is called back.
  60. EXTRAMAKEARGS := O=$(CANONICAL_O)
  61. # Check Buildroot execution pre-requisites here.
  62. ifneq ($(shell umask):$(CURDIR):$(O),$(REQ_UMASK):$(CANONICAL_CURDIR):$(CANONICAL_O))
  63. .PHONY: _all $(MAKECMDGOALS)
  64. $(MAKECMDGOALS): _all
  65. @:
  66. _all:
  67. @umask $(REQ_UMASK) && \
  68. $(MAKE) -C $(CANONICAL_CURDIR) --no-print-directory \
  69. $(MAKECMDGOALS) $(EXTRAMAKEARGS)
  70. else # umask / $(CURDIR) / $(O)
  71. # This is our default rule, so must come first
  72. all:
  73. # Set and export the version string
  74. export BR2_VERSION := 2017.05.2
  75. # Actual time the release is cut (for reproducible builds)
  76. BR2_VERSION_EPOCH = 1501136000
  77. # Save running make version since it's clobbered by the make package
  78. RUNNING_MAKE_VERSION := $(MAKE_VERSION)
  79. # Check for minimal make version (note: this check will break at make 10.x)
  80. MIN_MAKE_VERSION = 3.81
  81. ifneq ($(firstword $(sort $(RUNNING_MAKE_VERSION) $(MIN_MAKE_VERSION))),$(MIN_MAKE_VERSION))
  82. $(error You have make '$(RUNNING_MAKE_VERSION)' installed. GNU make >= $(MIN_MAKE_VERSION) is required)
  83. endif
  84. # Parallel execution of this Makefile is disabled because it changes
  85. # the packages building order, that can be a problem for two reasons:
  86. # - If a package has an unspecified optional dependency and that
  87. # dependency is present when the package is built, it is used,
  88. # otherwise it isn't (but compilation happily proceeds) so the end
  89. # result will differ if the order is swapped due to parallel
  90. # building.
  91. # - Also changing the building order can be a problem if two packages
  92. # manipulate the same file in the target directory.
  93. #
  94. # Taking into account the above considerations, if you still want to execute
  95. # this top-level Makefile in parallel comment the ".NOTPARALLEL" line and
  96. # use the -j<jobs> option when building, e.g:
  97. # make -j$((`getconf _NPROCESSORS_ONLN`+1))
  98. .NOTPARALLEL:
  99. # absolute path
  100. TOPDIR := $(CURDIR)
  101. CONFIG_CONFIG_IN = Config.in
  102. CONFIG = support/kconfig
  103. DATE := $(shell date +%Y%m%d)
  104. # Compute the full local version string so packages can use it as-is
  105. # Need to export it, so it can be got from environment in children (eg. mconf)
  106. export BR2_VERSION_FULL := $(BR2_VERSION)$(shell $(TOPDIR)/support/scripts/setlocalversion)
  107. noconfig_targets := menuconfig nconfig gconfig xconfig config oldconfig randconfig \
  108. defconfig %_defconfig allyesconfig allnoconfig silentoldconfig release \
  109. randpackageconfig allyespackageconfig allnopackageconfig \
  110. print-version olddefconfig distclean manual manual-html manual-split-html \
  111. manual-pdf manual-text manual-epub
  112. # Some global targets do not trigger a build, but are used to collect
  113. # metadata, or do various checks. When such targets are triggered,
  114. # some packages should not do their configuration sanity
  115. # checks. Provide them a BR_BUILDING variable set to 'y' when we're
  116. # actually building and they should do their sanity checks.
  117. #
  118. # We're building in two situations: when MAKECMDGOALS is empty
  119. # (default target is to build), or when MAKECMDGOALS contains
  120. # something else than one of the nobuild_targets.
  121. nobuild_targets := source %-source source-check \
  122. legal-info %-legal-info external-deps _external-deps \
  123. clean distclean help show-targets graph-depends \
  124. %-graph-depends %-show-depends %-show-version \
  125. graph-build graph-size list-defconfigs \
  126. savedefconfig printvars
  127. ifeq ($(MAKECMDGOALS),)
  128. BR_BUILDING = y
  129. else ifneq ($(filter-out $(nobuild_targets),$(MAKECMDGOALS)),)
  130. BR_BUILDING = y
  131. endif
  132. # We call make recursively to build packages. The command-line overrides that
  133. # are passed to Buildroot don't apply to those package build systems. In
  134. # particular, we don't want to pass down the O=<dir> option for out-of-tree
  135. # builds, because the value specified on the command line will not be correct
  136. # for packages.
  137. MAKEOVERRIDES :=
  138. # Include some helper macros and variables
  139. include support/misc/utils.mk
  140. # Set variables related to in-tree or out-of-tree build.
  141. # Here, both $(O) and $(CURDIR) are absolute canonical paths.
  142. ifeq ($(O),$(CURDIR)/output)
  143. CONFIG_DIR := $(CURDIR)
  144. NEED_WRAPPER =
  145. else
  146. CONFIG_DIR := $(O)
  147. NEED_WRAPPER = y
  148. endif
  149. # bash prints the name of the directory on 'cd <dir>' if CDPATH is
  150. # set, so unset it here to not cause problems. Notice that the export
  151. # line doesn't affect the environment of $(shell ..) calls.
  152. export CDPATH :=
  153. BASE_DIR := $(CANONICAL_O)
  154. $(if $(BASE_DIR),, $(error output directory "$(O)" does not exist))
  155. # Handling of BR2_EXTERNAL.
  156. #
  157. # The value of BR2_EXTERNAL is stored in .br-external in the output directory.
  158. # The location of the external.mk makefile fragments is computed in that file.
  159. # On subsequent invocations of make, this file is read in. BR2_EXTERNAL can
  160. # still be overridden on the command line, therefore the file is re-created
  161. # every time make is run.
  162. BR2_EXTERNAL_FILE = $(BASE_DIR)/.br-external.mk
  163. -include $(BR2_EXTERNAL_FILE)
  164. $(shell support/scripts/br2-external \
  165. -m -o '$(BR2_EXTERNAL_FILE)' $(BR2_EXTERNAL))
  166. BR2_EXTERNAL_ERROR =
  167. include $(BR2_EXTERNAL_FILE)
  168. ifneq ($(BR2_EXTERNAL_ERROR),)
  169. $(error $(BR2_EXTERNAL_ERROR))
  170. endif
  171. # To make sure that the environment variable overrides the .config option,
  172. # set this before including .config.
  173. ifneq ($(BR2_DL_DIR),)
  174. DL_DIR := $(BR2_DL_DIR)
  175. endif
  176. ifneq ($(BR2_CCACHE_DIR),)
  177. BR_CACHE_DIR := $(BR2_CCACHE_DIR)
  178. endif
  179. # Need that early, before we scan packages
  180. # Avoids doing the $(or...) everytime
  181. BR_GRAPH_OUT := $(or $(BR2_GRAPH_OUT),pdf)
  182. BUILD_DIR := $(BASE_DIR)/build
  183. BINARIES_DIR := $(BASE_DIR)/images
  184. TARGET_DIR := $(BASE_DIR)/target
  185. # initial definition so that 'make clean' works for most users, even without
  186. # .config. HOST_DIR will be overwritten later when .config is included.
  187. HOST_DIR := $(BASE_DIR)/host
  188. GRAPHS_DIR := $(BASE_DIR)/graphs
  189. LEGAL_INFO_DIR = $(BASE_DIR)/legal-info
  190. REDIST_SOURCES_DIR_TARGET = $(LEGAL_INFO_DIR)/sources
  191. REDIST_SOURCES_DIR_HOST = $(LEGAL_INFO_DIR)/host-sources
  192. LICENSE_FILES_DIR_TARGET = $(LEGAL_INFO_DIR)/licenses
  193. LICENSE_FILES_DIR_HOST = $(LEGAL_INFO_DIR)/host-licenses
  194. LEGAL_MANIFEST_CSV_TARGET = $(LEGAL_INFO_DIR)/manifest.csv
  195. LEGAL_MANIFEST_CSV_HOST = $(LEGAL_INFO_DIR)/host-manifest.csv
  196. LEGAL_WARNINGS = $(LEGAL_INFO_DIR)/.warnings
  197. LEGAL_REPORT = $(LEGAL_INFO_DIR)/README
  198. ################################################################################
  199. #
  200. # staging and target directories do NOT list these as
  201. # dependencies anywhere else
  202. #
  203. ################################################################################
  204. $(BUILD_DIR) $(TARGET_DIR) $(HOST_DIR) $(BINARIES_DIR) $(LEGAL_INFO_DIR) $(REDIST_SOURCES_DIR_TARGET) $(REDIST_SOURCES_DIR_HOST):
  205. @mkdir -p $@
  206. BR2_CONFIG = $(CONFIG_DIR)/.config
  207. # Pull in the user's configuration file
  208. ifeq ($(filter $(noconfig_targets),$(MAKECMDGOALS)),)
  209. -include $(BR2_CONFIG)
  210. endif
  211. # timezone and locale may affect build output
  212. ifeq ($(BR2_REPRODUCIBLE),y)
  213. export TZ = UTC
  214. export LANG = C
  215. export LC_ALL = C
  216. export GZIP = -n
  217. BR2_VERSION_GIT_EPOCH = $(shell GIT_DIR=$(TOPDIR)/.git $(GIT) log -1 --format=%at)
  218. export SOURCE_DATE_EPOCH = $(if $(wildcard $(TOPDIR)/.git),$(BR2_VERSION_GIT_EPOCH),$(BR2_VERSION_EPOCH))
  219. DEPENDENCIES_HOST_PREREQ += host-fakedate
  220. endif
  221. # To put more focus on warnings, be less verbose as default
  222. # Use 'make V=1' to see the full commands
  223. ifeq ("$(origin V)", "command line")
  224. KBUILD_VERBOSE = $(V)
  225. endif
  226. ifndef KBUILD_VERBOSE
  227. KBUILD_VERBOSE = 0
  228. endif
  229. ifeq ($(KBUILD_VERBOSE),1)
  230. Q =
  231. ifndef VERBOSE
  232. VERBOSE = 1
  233. endif
  234. export VERBOSE
  235. else
  236. Q = @
  237. endif
  238. # kconfig uses CONFIG_SHELL
  239. CONFIG_SHELL := $(SHELL)
  240. export SHELL CONFIG_SHELL Q KBUILD_VERBOSE
  241. ifndef HOSTAR
  242. HOSTAR := ar
  243. endif
  244. ifndef HOSTAS
  245. HOSTAS := as
  246. endif
  247. ifndef HOSTCC
  248. HOSTCC := gcc
  249. HOSTCC := $(shell which $(HOSTCC) || type -p $(HOSTCC) || echo gcc)
  250. endif
  251. HOSTCC_NOCCACHE := $(HOSTCC)
  252. ifndef HOSTCXX
  253. HOSTCXX := g++
  254. HOSTCXX := $(shell which $(HOSTCXX) || type -p $(HOSTCXX) || echo g++)
  255. endif
  256. HOSTCXX_NOCCACHE := $(HOSTCXX)
  257. ifndef HOSTCPP
  258. HOSTCPP := cpp
  259. endif
  260. ifndef HOSTLD
  261. HOSTLD := ld
  262. endif
  263. ifndef HOSTLN
  264. HOSTLN := ln
  265. endif
  266. ifndef HOSTNM
  267. HOSTNM := nm
  268. endif
  269. ifndef HOSTOBJCOPY
  270. HOSTOBJCOPY := objcopy
  271. endif
  272. ifndef HOSTRANLIB
  273. HOSTRANLIB := ranlib
  274. endif
  275. HOSTAR := $(shell which $(HOSTAR) || type -p $(HOSTAR) || echo ar)
  276. HOSTAS := $(shell which $(HOSTAS) || type -p $(HOSTAS) || echo as)
  277. HOSTCPP := $(shell which $(HOSTCPP) || type -p $(HOSTCPP) || echo cpp)
  278. HOSTLD := $(shell which $(HOSTLD) || type -p $(HOSTLD) || echo ld)
  279. HOSTLN := $(shell which $(HOSTLN) || type -p $(HOSTLN) || echo ln)
  280. HOSTNM := $(shell which $(HOSTNM) || type -p $(HOSTNM) || echo nm)
  281. HOSTOBJCOPY := $(shell which $(HOSTOBJCOPY) || type -p $(HOSTOBJCOPY) || echo objcopy)
  282. HOSTRANLIB := $(shell which $(HOSTRANLIB) || type -p $(HOSTRANLIB) || echo ranlib)
  283. SED := $(shell which sed || type -p sed) -i -e
  284. export HOSTAR HOSTAS HOSTCC HOSTCXX HOSTLD
  285. export HOSTCC_NOCCACHE HOSTCXX_NOCCACHE
  286. # Determine the userland we are running on.
  287. #
  288. # Note that, despite its name, we are not interested in the actual
  289. # architecture name. This is mostly used to determine whether some
  290. # of the binary tools (e.g. pre-built external toolchains) can run
  291. # on the current host. So we need to know if the userland we're
  292. # running on can actually run those toolchains.
  293. #
  294. # For example, a 64-bit prebuilt toolchain will not run on a 64-bit
  295. # kernel if the userland is 32-bit (e.g. in a chroot for example).
  296. #
  297. # So, we extract the first part of the tuple the host gcc was
  298. # configured to generate code for; we assume this is our userland.
  299. #
  300. export HOSTARCH := $(shell LC_ALL=C $(HOSTCC_NOCCACHE) -v 2>&1 | \
  301. sed -e '/^Target: \([^-]*\).*/!d' \
  302. -e 's//\1/' \
  303. -e 's/i.86/x86/' \
  304. -e 's/sun4u/sparc64/' \
  305. -e 's/arm.*/arm/' \
  306. -e 's/sa110/arm/' \
  307. -e 's/ppc64/powerpc64/' \
  308. -e 's/ppc/powerpc/' \
  309. -e 's/macppc/powerpc/' \
  310. -e 's/sh.*/sh/' )
  311. HOSTCC_VERSION := $(shell $(HOSTCC_NOCCACHE) --version | \
  312. sed -n -r 's/^.* ([0-9]*)\.([0-9]*)\.([0-9]*)[ ]*.*/\1 \2/p')
  313. # For gcc >= 5.x, we only need the major version.
  314. ifneq ($(firstword $(HOSTCC_VERSION)),4)
  315. HOSTCC_VERSION := $(firstword $(HOSTCC_VERSION))
  316. endif
  317. # Make sure pkg-config doesn't look outside the buildroot tree
  318. HOST_PKG_CONFIG_PATH := $(PKG_CONFIG_PATH)
  319. unexport PKG_CONFIG_PATH
  320. unexport PKG_CONFIG_SYSROOT_DIR
  321. unexport PKG_CONFIG_LIBDIR
  322. # Having DESTDIR set in the environment confuses the installation
  323. # steps of some packages.
  324. unexport DESTDIR
  325. # Causes breakage with packages that needs host-ruby
  326. unexport RUBYOPT
  327. include package/pkg-utils.mk
  328. include package/doc-asciidoc.mk
  329. ifeq ($(BR2_HAVE_DOT_CONFIG),y)
  330. ################################################################################
  331. #
  332. # Hide troublesome environment variables from sub processes
  333. #
  334. ################################################################################
  335. unexport CROSS_COMPILE
  336. unexport ARCH
  337. unexport CC
  338. unexport LD
  339. unexport AR
  340. unexport CXX
  341. unexport CPP
  342. unexport RANLIB
  343. unexport CFLAGS
  344. unexport CXXFLAGS
  345. unexport GREP_OPTIONS
  346. unexport TAR_OPTIONS
  347. unexport CONFIG_SITE
  348. unexport QMAKESPEC
  349. unexport TERMINFO
  350. unexport MACHINE
  351. unexport O
  352. unexport GCC_COLORS
  353. GNU_HOST_NAME := $(shell support/gnuconfig/config.guess)
  354. PACKAGES :=
  355. PACKAGES_ALL :=
  356. # silent mode requested?
  357. QUIET := $(if $(findstring s,$(filter-out --%,$(MAKEFLAGS))),-q)
  358. # Strip off the annoying quoting
  359. ARCH := $(call qstrip,$(BR2_ARCH))
  360. KERNEL_ARCH := $(shell echo "$(ARCH)" | sed -e "s/-.*//" \
  361. -e s/i.86/i386/ -e s/sun4u/sparc64/ \
  362. -e s/arcle/arc/ \
  363. -e s/arceb/arc/ \
  364. -e s/arm.*/arm/ -e s/sa110/arm/ \
  365. -e s/aarch64.*/arm64/ \
  366. -e s/bfin/blackfin/ \
  367. -e s/or1k/openrisc/ \
  368. -e s/parisc64/parisc/ \
  369. -e s/powerpc64.*/powerpc/ \
  370. -e s/ppc.*/powerpc/ -e s/mips.*/mips/ \
  371. -e s/sh.*/sh/ \
  372. -e s/microblazeel/microblaze/)
  373. ZCAT := $(call qstrip,$(BR2_ZCAT))
  374. BZCAT := $(call qstrip,$(BR2_BZCAT))
  375. XZCAT := $(call qstrip,$(BR2_XZCAT))
  376. LZCAT := $(call qstrip,$(BR2_LZCAT))
  377. TAR_OPTIONS = $(call qstrip,$(BR2_TAR_OPTIONS)) -xf
  378. # packages compiled for the host go here
  379. HOST_DIR := $(call qstrip,$(BR2_HOST_DIR))
  380. # Quotes are needed for spaces and all in the original PATH content.
  381. BR_PATH = "$(HOST_DIR)/bin:$(HOST_DIR)/sbin:$(HOST_DIR)/usr/bin:$(HOST_DIR)/usr/sbin:$(PATH)"
  382. # Location of a file giving a big fat warning that output/target
  383. # should not be used as the root filesystem.
  384. TARGET_DIR_WARNING_FILE = $(TARGET_DIR)/THIS_IS_NOT_YOUR_ROOT_FILESYSTEM
  385. ifeq ($(BR2_CCACHE),y)
  386. CCACHE := $(HOST_DIR)/usr/bin/ccache
  387. BR_CACHE_DIR ?= $(call qstrip,$(BR2_CCACHE_DIR))
  388. export BR_CACHE_DIR
  389. HOSTCC := $(CCACHE) $(HOSTCC)
  390. HOSTCXX := $(CCACHE) $(HOSTCXX)
  391. else
  392. export BR_NO_CCACHE
  393. endif
  394. # Scripts in support/ or post-build scripts may need to reference
  395. # these locations, so export them so it is easier to use
  396. export BR2_CONFIG
  397. export BR2_REPRODUCIBLE
  398. export TARGET_DIR
  399. export STAGING_DIR
  400. export HOST_DIR
  401. export BINARIES_DIR
  402. export BASE_DIR
  403. ################################################################################
  404. #
  405. # You should probably leave this stuff alone unless you know
  406. # what you are doing.
  407. #
  408. ################################################################################
  409. all: world
  410. # Include legacy before the other things, because package .mk files
  411. # may rely on it.
  412. include Makefile.legacy
  413. include package/Makefile.in
  414. # arch/arch.mk.* must be after package/Makefile.in because it may need to
  415. # complement variables defined therein, like BR_NO_CHECK_HASH_FOR.
  416. -include $(wildcard arch/arch.mk.*)
  417. include support/dependencies/dependencies.mk
  418. include toolchain/*.mk
  419. include toolchain/*/*.mk
  420. # Include the package override file if one has been provided in the
  421. # configuration.
  422. PACKAGE_OVERRIDE_FILE = $(call qstrip,$(BR2_PACKAGE_OVERRIDE_FILE))
  423. ifneq ($(PACKAGE_OVERRIDE_FILE),)
  424. -include $(PACKAGE_OVERRIDE_FILE)
  425. endif
  426. include $(sort $(wildcard package/*/*.mk))
  427. include boot/common.mk
  428. include linux/linux.mk
  429. include fs/common.mk
  430. # If using a br2-external tree, the BR2_EXTERNAL_$(NAME)_PATH variables
  431. # are also present in the .config file. Since .config is included after
  432. # we defined them in the Makefile, the values for those variables are
  433. # quoted. We just include the generated Makefile fragment .br2-external.mk
  434. # a third time, which will set those variables to the un-quoted values.
  435. include $(BR2_EXTERNAL_FILE)
  436. # Nothing to include if no BR2_EXTERNAL tree in use
  437. include $(BR2_EXTERNAL_MKS)
  438. # Now we are sure we have all the packages scanned and defined. We now
  439. # check for each package in the list of enabled packages, that all its
  440. # dependencies are indeed enabled.
  441. #
  442. # Only trigger the check for default builds. If the user forces building
  443. # a package, even if not enabled in the configuration, we want to accept
  444. # it.
  445. #
  446. ifeq ($(MAKECMDGOALS),)
  447. define CHECK_ONE_DEPENDENCY
  448. ifeq ($$($(2)_TYPE),target)
  449. ifeq ($$($(2)_IS_VIRTUAL),)
  450. ifneq ($$($$($(2)_KCONFIG_VAR)),y)
  451. $$(error $$($(2)_NAME) is in the dependency chain of $$($(1)_NAME) that \
  452. has added it to its _DEPENDENCIES variable without selecting it or \
  453. depending on it from Config.in)
  454. endif
  455. endif
  456. endif
  457. endef
  458. $(foreach pkg,$(call UPPERCASE,$(PACKAGES)),\
  459. $(foreach dep,$(call UPPERCASE,$($(pkg)_FINAL_ALL_DEPENDENCIES)),\
  460. $(eval $(call CHECK_ONE_DEPENDENCY,$(pkg),$(dep))$(sep))))
  461. endif
  462. dirs: $(BUILD_DIR) $(STAGING_DIR) $(TARGET_DIR) \
  463. $(HOST_DIR) $(BINARIES_DIR)
  464. $(BUILD_DIR)/buildroot-config/auto.conf: $(BR2_CONFIG)
  465. $(MAKE1) $(EXTRAMAKEARGS) HOSTCC="$(HOSTCC_NOCCACHE)" HOSTCXX="$(HOSTCXX_NOCCACHE)" silentoldconfig
  466. prepare: $(BUILD_DIR)/buildroot-config/auto.conf
  467. world: target-post-image
  468. .PHONY: all world toolchain dirs clean distclean source outputmakefile \
  469. legal-info legal-info-prepare legal-info-clean printvars help \
  470. list-defconfigs target-finalize target-post-image source-check
  471. # Populating the staging with the base directories is handled by the skeleton package
  472. $(STAGING_DIR):
  473. @mkdir -p $(STAGING_DIR)
  474. @ln -snf $(STAGING_DIR) $(BASE_DIR)/staging
  475. RSYNC_VCS_EXCLUSIONS = \
  476. --exclude .svn --exclude .git --exclude .hg --exclude .bzr \
  477. --exclude CVS
  478. STRIP_FIND_CMD = find $(TARGET_DIR)
  479. ifneq (,$(call qstrip,$(BR2_STRIP_EXCLUDE_DIRS)))
  480. STRIP_FIND_CMD += \( $(call finddirclauses,$(TARGET_DIR),$(call qstrip,$(BR2_STRIP_EXCLUDE_DIRS))) \) -prune -o
  481. endif
  482. STRIP_FIND_CMD += -type f \( -perm /111 -o -name '*.so*' \)
  483. # file exclusions:
  484. # - libpthread.so: a non-stripped libpthread shared library is needed for
  485. # proper debugging of pthread programs using gdb.
  486. # - ld.so: a non-stripped dynamic linker library is needed for valgrind
  487. # - kernel modules (*.ko): do not function properly when stripped like normal
  488. # applications and libraries. Normally kernel modules are already excluded
  489. # by the executable permission check above, so the explicit exclusion is only
  490. # done for kernel modules with incorrect permissions.
  491. STRIP_FIND_CMD += -not \( $(call findfileclauses,libpthread*.so* ld-*.so* *.ko $(call qstrip,$(BR2_STRIP_EXCLUDE_FILES))) \) -print0
  492. ifeq ($(BR2_ECLIPSE_REGISTER),y)
  493. define TOOLCHAIN_ECLIPSE_REGISTER
  494. ./support/scripts/eclipse-register-toolchain `readlink -f $(O)` \
  495. $(notdir $(TARGET_CROSS)) $(BR2_ARCH)
  496. endef
  497. TARGET_FINALIZE_HOOKS += TOOLCHAIN_ECLIPSE_REGISTER
  498. endif
  499. # Generate locale data. Basically, we call the localedef program
  500. # (built by the host-localedef package) for each locale. The input
  501. # data comes preferably from the toolchain, or if the toolchain does
  502. # not have them (Linaro toolchains), we use the ones available on the
  503. # host machine.
  504. ifeq ($(BR2_TOOLCHAIN_USES_GLIBC),y)
  505. GLIBC_GENERATE_LOCALES = $(call qstrip,$(BR2_GENERATE_LOCALE))
  506. ifneq ($(GLIBC_GENERATE_LOCALES),)
  507. PACKAGES += host-localedef
  508. define GENERATE_GLIBC_LOCALES
  509. $(Q)mkdir -p $(TARGET_DIR)/usr/lib/locale/
  510. $(Q)for locale in $(GLIBC_GENERATE_LOCALES) ; do \
  511. inputfile=`echo $${locale} | cut -f1 -d'.'` ; \
  512. charmap=`echo $${locale} | cut -f2 -d'.' -s` ; \
  513. if test -z "$${charmap}" ; then \
  514. charmap="UTF-8" ; \
  515. fi ; \
  516. echo "Generating locale $${inputfile}.$${charmap}" ; \
  517. I18NPATH=$(STAGING_DIR)/usr/share/i18n:/usr/share/i18n \
  518. $(HOST_DIR)/usr/bin/localedef \
  519. --prefix=$(TARGET_DIR) \
  520. --$(call LOWERCASE,$(BR2_ENDIAN))-endian \
  521. -i $${inputfile} -f $${charmap} \
  522. $${locale} ; \
  523. done
  524. endef
  525. TARGET_FINALIZE_HOOKS += GENERATE_GLIBC_LOCALES
  526. endif
  527. endif
  528. ifeq ($(BR2_ENABLE_LOCALE_PURGE),y)
  529. LOCALE_WHITELIST = $(BUILD_DIR)/locales.nopurge
  530. LOCALE_NOPURGE = $(call qstrip,$(BR2_ENABLE_LOCALE_WHITELIST))
  531. # This piece of junk does the following:
  532. # First collect the whitelist in a file.
  533. # Then go over all the locale dirs and for each subdir, check if it exists
  534. # in the whitelist file. If it doesn't, kill it.
  535. # Finally, specifically for X11, regenerate locale.dir from the whitelist.
  536. define PURGE_LOCALES
  537. rm -f $(LOCALE_WHITELIST)
  538. for i in $(LOCALE_NOPURGE) locale-archive; do echo $$i >> $(LOCALE_WHITELIST); done
  539. for dir in $(wildcard $(addprefix $(TARGET_DIR),/usr/share/locale /usr/share/X11/locale /usr/lib/locale)); \
  540. do \
  541. for langdir in $$dir/*; \
  542. do \
  543. if [ -e "$${langdir}" ]; \
  544. then \
  545. grep -qx "$${langdir##*/}" $(LOCALE_WHITELIST) || rm -rf $$langdir; \
  546. fi \
  547. done; \
  548. done
  549. if [ -d $(TARGET_DIR)/usr/share/X11/locale ]; \
  550. then \
  551. for lang in $(LOCALE_NOPURGE); \
  552. do \
  553. if [ -f $(TARGET_DIR)/usr/share/X11/locale/$$lang/XLC_LOCALE ]; \
  554. then \
  555. echo "$$lang/XLC_LOCALE: $$lang"; \
  556. fi \
  557. done > $(TARGET_DIR)/usr/share/X11/locale/locale.dir; \
  558. fi
  559. endef
  560. TARGET_FINALIZE_HOOKS += PURGE_LOCALES
  561. endif
  562. $(TARGETS_ROOTFS): target-finalize
  563. target-finalize: $(PACKAGES)
  564. @$(call MESSAGE,"Finalizing target directory")
  565. $(foreach hook,$(TARGET_FINALIZE_HOOKS),$($(hook))$(sep))
  566. rm -rf $(TARGET_DIR)/usr/include $(TARGET_DIR)/usr/share/aclocal \
  567. $(TARGET_DIR)/usr/lib/pkgconfig $(TARGET_DIR)/usr/share/pkgconfig \
  568. $(TARGET_DIR)/usr/lib/cmake $(TARGET_DIR)/usr/share/cmake
  569. find $(TARGET_DIR)/usr/{lib,share}/ -name '*.cmake' -print0 | xargs -0 rm -f
  570. find $(TARGET_DIR)/lib/ $(TARGET_DIR)/usr/lib/ $(TARGET_DIR)/usr/libexec/ \
  571. \( -name '*.a' -o -name '*.la' \) -print0 | xargs -0 rm -f
  572. ifneq ($(BR2_PACKAGE_GDB),y)
  573. rm -rf $(TARGET_DIR)/usr/share/gdb
  574. endif
  575. ifneq ($(BR2_PACKAGE_BASH),y)
  576. rm -rf $(TARGET_DIR)/usr/share/bash-completion
  577. endif
  578. ifneq ($(BR2_PACKAGE_ZSH),y)
  579. rm -rf $(TARGET_DIR)/usr/share/zsh
  580. endif
  581. rm -rf $(TARGET_DIR)/usr/man $(TARGET_DIR)/usr/share/man
  582. rm -rf $(TARGET_DIR)/usr/info $(TARGET_DIR)/usr/share/info
  583. rm -rf $(TARGET_DIR)/usr/doc $(TARGET_DIR)/usr/share/doc
  584. rm -rf $(TARGET_DIR)/usr/share/gtk-doc
  585. rmdir $(TARGET_DIR)/usr/share 2>/dev/null || true
  586. $(STRIP_FIND_CMD) | xargs -0 $(STRIPCMD) 2>/dev/null || true
  587. # See http://sourceware.org/gdb/wiki/FAQ, "GDB does not see any threads
  588. # besides the one in which crash occurred; or SIGTRAP kills my program when
  589. # I set a breakpoint"
  590. ifeq ($(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. # Valgrind needs ld.so with enough information, so only strip
  595. # debugging symbols.
  596. find $(TARGET_DIR)/lib/ -type f -name 'ld-*.so*' | \
  597. xargs -r $(STRIPCMD) $(STRIP_STRIP_DEBUG)
  598. test -f $(TARGET_DIR)/etc/ld.so.conf && \
  599. { echo "ERROR: we shouldn't have a /etc/ld.so.conf file"; exit 1; } || true
  600. test -d $(TARGET_DIR)/etc/ld.so.conf.d && \
  601. { echo "ERROR: we shouldn't have a /etc/ld.so.conf.d directory"; exit 1; } || true
  602. mkdir -p $(TARGET_DIR)/etc
  603. ( \
  604. echo "NAME=Buildroot"; \
  605. echo "VERSION=$(BR2_VERSION_FULL)"; \
  606. echo "ID=buildroot"; \
  607. echo "VERSION_ID=$(BR2_VERSION)"; \
  608. echo "PRETTY_NAME=\"Buildroot $(BR2_VERSION)\"" \
  609. ) > $(TARGET_DIR)/etc/os-release
  610. @$(foreach d, $(call qstrip,$(BR2_ROOTFS_OVERLAY)), \
  611. $(call MESSAGE,"Copying overlay $(d)"); \
  612. rsync -a --ignore-times --keep-dirlinks $(RSYNC_VCS_EXCLUSIONS) \
  613. --chmod=u=rwX,go=rX --exclude .empty --exclude '*~' \
  614. $(d)/ $(TARGET_DIR)$(sep))
  615. @$(foreach s, $(call qstrip,$(BR2_ROOTFS_POST_BUILD_SCRIPT)), \
  616. $(call MESSAGE,"Executing post-build script $(s)"); \
  617. $(EXTRA_ENV) $(s) $(TARGET_DIR) $(call qstrip,$(BR2_ROOTFS_POST_SCRIPT_ARGS))$(sep))
  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. source: $(foreach p,$(PACKAGES),$(p)-all-source)
  623. _external-deps: $(foreach p,$(PACKAGES),$(p)-all-external-deps)
  624. external-deps:
  625. @$(MAKE1) -Bs $(EXTRAMAKEARGS) _external-deps | sort -u
  626. # check if download URLs are outdated
  627. source-check: $(foreach p,$(PACKAGES),$(p)-all-source-check)
  628. legal-info-clean:
  629. @rm -fr $(LEGAL_INFO_DIR)
  630. legal-info-prepare: $(LEGAL_INFO_DIR)
  631. @$(call MESSAGE,"Collecting legal info")
  632. @$(call legal-license-file,buildroot,COPYING,COPYING,HOST)
  633. @$(call legal-manifest,PACKAGE,VERSION,LICENSE,LICENSE FILES,SOURCE ARCHIVE,SOURCE SITE,TARGET)
  634. @$(call legal-manifest,PACKAGE,VERSION,LICENSE,LICENSE FILES,SOURCE ARCHIVE,SOURCE SITE,HOST)
  635. @$(call legal-manifest,buildroot,$(BR2_VERSION_FULL),GPL-2.0+,COPYING,not saved,not saved,HOST)
  636. @$(call legal-warning,the Buildroot source code has not been saved)
  637. @cp $(BR2_CONFIG) $(LEGAL_INFO_DIR)/buildroot.config
  638. legal-info: dirs legal-info-clean legal-info-prepare $(foreach p,$(PACKAGES),$(p)-all-legal-info) \
  639. $(REDIST_SOURCES_DIR_TARGET) $(REDIST_SOURCES_DIR_HOST)
  640. @cat support/legal-info/README.header >>$(LEGAL_REPORT)
  641. @if [ -r $(LEGAL_WARNINGS) ]; then \
  642. cat support/legal-info/README.warnings-header \
  643. $(LEGAL_WARNINGS) >>$(LEGAL_REPORT); \
  644. cat $(LEGAL_WARNINGS); fi
  645. @rm -f $(LEGAL_WARNINGS)
  646. @(cd $(LEGAL_INFO_DIR); \
  647. find * -type f -exec sha256sum {} + | LC_ALL=C sort -k2 \
  648. >.legal-info.sha256; \
  649. mv .legal-info.sha256 legal-info.sha256)
  650. @echo "Legal info produced in $(LEGAL_INFO_DIR)"
  651. show-targets:
  652. @echo $(PACKAGES) $(TARGETS_ROOTFS)
  653. show-build-order: $(patsubst %,%-show-build-order,$(PACKAGES))
  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. graph-depends-requirements:
  665. @dot -? >/dev/null 2>&1 || \
  666. { echo "ERROR: The 'dot' program from Graphviz is needed for graph-depends" >&2; exit 1; }
  667. graph-depends: graph-depends-requirements
  668. @$(INSTALL) -d $(GRAPHS_DIR)
  669. @cd "$(CONFIG_DIR)"; \
  670. $(TOPDIR)/support/scripts/graph-depends $(BR2_GRAPH_DEPS_OPTS) \
  671. --direct -o $(GRAPHS_DIR)/$(@).dot
  672. dot $(BR2_GRAPH_DOT_OPTS) -T$(BR_GRAPH_OUT) \
  673. -o $(GRAPHS_DIR)/$(@).$(BR_GRAPH_OUT) \
  674. $(GRAPHS_DIR)/$(@).dot
  675. graph-size:
  676. $(Q)mkdir -p $(GRAPHS_DIR)
  677. $(Q)$(TOPDIR)/support/scripts/size-stats --builddir $(BASE_DIR) \
  678. --graph $(GRAPHS_DIR)/graph-size.$(BR_GRAPH_OUT) \
  679. --file-size-csv $(GRAPHS_DIR)/file-size-stats.csv \
  680. --package-size-csv $(GRAPHS_DIR)/package-size-stats.csv
  681. check-dependencies:
  682. @cd "$(CONFIG_DIR)"; \
  683. $(TOPDIR)/support/scripts/graph-depends -C
  684. else # ifeq ($(BR2_HAVE_DOT_CONFIG),y)
  685. all: menuconfig
  686. endif # ifeq ($(BR2_HAVE_DOT_CONFIG),y)
  687. # configuration
  688. # ---------------------------------------------------------------------------
  689. HOSTCFLAGS = $(CFLAGS_FOR_BUILD)
  690. export HOSTCFLAGS
  691. .PHONY: prepare-kconfig
  692. prepare-kconfig: outputmakefile $(BUILD_DIR)/.br2-external.in
  693. $(BUILD_DIR)/buildroot-config/%onf:
  694. mkdir -p $(@D)/lxdialog
  695. PKG_CONFIG_PATH="$(HOST_PKG_CONFIG_PATH)" $(MAKE) CC="$(HOSTCC_NOCCACHE)" HOSTCC="$(HOSTCC_NOCCACHE)" \
  696. obj=$(@D) -C $(CONFIG) -f Makefile.br $(@F)
  697. DEFCONFIG = $(call qstrip,$(BR2_DEFCONFIG))
  698. # We don't want to fully expand BR2_DEFCONFIG here, so Kconfig will
  699. # recognize that if it's still at its default $(CONFIG_DIR)/defconfig
  700. COMMON_CONFIG_ENV = \
  701. BR2_DEFCONFIG='$(call qstrip,$(value BR2_DEFCONFIG))' \
  702. KCONFIG_AUTOCONFIG=$(BUILD_DIR)/buildroot-config/auto.conf \
  703. KCONFIG_AUTOHEADER=$(BUILD_DIR)/buildroot-config/autoconf.h \
  704. KCONFIG_TRISTATE=$(BUILD_DIR)/buildroot-config/tristate.config \
  705. BR2_CONFIG=$(BR2_CONFIG) \
  706. HOST_GCC_VERSION="$(HOSTCC_VERSION)" \
  707. BUILD_DIR=$(BUILD_DIR) \
  708. SKIP_LEGACY=
  709. xconfig: $(BUILD_DIR)/buildroot-config/qconf prepare-kconfig
  710. @$(COMMON_CONFIG_ENV) $< $(CONFIG_CONFIG_IN)
  711. gconfig: $(BUILD_DIR)/buildroot-config/gconf prepare-kconfig
  712. @$(COMMON_CONFIG_ENV) srctree=$(TOPDIR) $< $(CONFIG_CONFIG_IN)
  713. menuconfig: $(BUILD_DIR)/buildroot-config/mconf prepare-kconfig
  714. @$(COMMON_CONFIG_ENV) $< $(CONFIG_CONFIG_IN)
  715. nconfig: $(BUILD_DIR)/buildroot-config/nconf prepare-kconfig
  716. @$(COMMON_CONFIG_ENV) $< $(CONFIG_CONFIG_IN)
  717. config: $(BUILD_DIR)/buildroot-config/conf prepare-kconfig
  718. @$(COMMON_CONFIG_ENV) $< $(CONFIG_CONFIG_IN)
  719. # For the config targets that automatically select options, we pass
  720. # SKIP_LEGACY=y to disable the legacy options. However, in that case
  721. # no values are set for the legacy options so a subsequent oldconfig
  722. # will query them. Therefore, run an additional olddefconfig.
  723. oldconfig: $(BUILD_DIR)/buildroot-config/conf prepare-kconfig
  724. @$(COMMON_CONFIG_ENV) $< --oldconfig $(CONFIG_CONFIG_IN)
  725. randconfig: $(BUILD_DIR)/buildroot-config/conf prepare-kconfig
  726. @$(COMMON_CONFIG_ENV) SKIP_LEGACY=y $< --randconfig $(CONFIG_CONFIG_IN)
  727. @$(COMMON_CONFIG_ENV) $< --olddefconfig $(CONFIG_CONFIG_IN) >/dev/null
  728. allyesconfig: $(BUILD_DIR)/buildroot-config/conf prepare-kconfig
  729. @$(COMMON_CONFIG_ENV) SKIP_LEGACY=y $< --allyesconfig $(CONFIG_CONFIG_IN)
  730. @$(COMMON_CONFIG_ENV) $< --olddefconfig $(CONFIG_CONFIG_IN) >/dev/null
  731. allnoconfig: $(BUILD_DIR)/buildroot-config/conf prepare-kconfig
  732. @$(COMMON_CONFIG_ENV) SKIP_LEGACY=y $< --allnoconfig $(CONFIG_CONFIG_IN)
  733. @$(COMMON_CONFIG_ENV) $< --olddefconfig $(CONFIG_CONFIG_IN) >/dev/null
  734. randpackageconfig: $(BUILD_DIR)/buildroot-config/conf prepare-kconfig
  735. @grep -v BR2_PACKAGE_ $(BR2_CONFIG) > $(CONFIG_DIR)/.config.nopkg
  736. @$(COMMON_CONFIG_ENV) SKIP_LEGACY=y \
  737. KCONFIG_ALLCONFIG=$(CONFIG_DIR)/.config.nopkg \
  738. $< --randconfig $(CONFIG_CONFIG_IN)
  739. @rm -f $(CONFIG_DIR)/.config.nopkg
  740. @$(COMMON_CONFIG_ENV) $< --olddefconfig $(CONFIG_CONFIG_IN) >/dev/null
  741. allyespackageconfig: $(BUILD_DIR)/buildroot-config/conf prepare-kconfig
  742. @grep -v BR2_PACKAGE_ $(BR2_CONFIG) > $(CONFIG_DIR)/.config.nopkg
  743. @$(COMMON_CONFIG_ENV) SKIP_LEGACY=y \
  744. KCONFIG_ALLCONFIG=$(CONFIG_DIR)/.config.nopkg \
  745. $< --allyesconfig $(CONFIG_CONFIG_IN)
  746. @rm -f $(CONFIG_DIR)/.config.nopkg
  747. @$(COMMON_CONFIG_ENV) $< --olddefconfig $(CONFIG_CONFIG_IN) >/dev/null
  748. allnopackageconfig: $(BUILD_DIR)/buildroot-config/conf prepare-kconfig
  749. @grep -v BR2_PACKAGE_ $(BR2_CONFIG) > $(CONFIG_DIR)/.config.nopkg
  750. @$(COMMON_CONFIG_ENV) SKIP_LEGACY=y \
  751. KCONFIG_ALLCONFIG=$(CONFIG_DIR)/.config.nopkg \
  752. $< --allnoconfig $(CONFIG_CONFIG_IN)
  753. @rm -f $(CONFIG_DIR)/.config.nopkg
  754. @$(COMMON_CONFIG_ENV) $< --olddefconfig $(CONFIG_CONFIG_IN) >/dev/null
  755. silentoldconfig: $(BUILD_DIR)/buildroot-config/conf prepare-kconfig
  756. $(COMMON_CONFIG_ENV) $< --silentoldconfig $(CONFIG_CONFIG_IN)
  757. olddefconfig: $(BUILD_DIR)/buildroot-config/conf prepare-kconfig
  758. $(COMMON_CONFIG_ENV) $< --olddefconfig $(CONFIG_CONFIG_IN)
  759. defconfig: $(BUILD_DIR)/buildroot-config/conf prepare-kconfig
  760. @$(COMMON_CONFIG_ENV) $< --defconfig$(if $(DEFCONFIG),=$(DEFCONFIG)) $(CONFIG_CONFIG_IN)
  761. define percent_defconfig
  762. # Override the BR2_DEFCONFIG from COMMON_CONFIG_ENV with the new defconfig
  763. %_defconfig: $(BUILD_DIR)/buildroot-config/conf $(1)/configs/%_defconfig prepare-kconfig
  764. @$$(COMMON_CONFIG_ENV) BR2_DEFCONFIG=$(1)/configs/$$@ \
  765. $$< --defconfig=$(1)/configs/$$@ $$(CONFIG_CONFIG_IN)
  766. endef
  767. $(eval $(foreach d,$(call reverse,$(TOPDIR) $(BR2_EXTERNAL_DIRS)),$(call percent_defconfig,$(d))$(sep)))
  768. savedefconfig: $(BUILD_DIR)/buildroot-config/conf prepare-kconfig
  769. @$(COMMON_CONFIG_ENV) $< \
  770. --savedefconfig=$(if $(DEFCONFIG),$(DEFCONFIG),$(CONFIG_DIR)/defconfig) \
  771. $(CONFIG_CONFIG_IN)
  772. @$(SED) '/BR2_DEFCONFIG=/d' $(if $(DEFCONFIG),$(DEFCONFIG),$(CONFIG_DIR)/defconfig)
  773. .PHONY: defconfig savedefconfig
  774. ################################################################################
  775. #
  776. # Cleanup and misc junk
  777. #
  778. ################################################################################
  779. # outputmakefile generates a Makefile in the output directory, if using a
  780. # separate output directory. This allows convenient use of make in the
  781. # output directory.
  782. outputmakefile:
  783. ifeq ($(NEED_WRAPPER),y)
  784. $(Q)$(TOPDIR)/support/scripts/mkmakefile $(TOPDIR) $(O)
  785. endif
  786. # Even though the target is a real file, we mark it as PHONY as we
  787. # want it to be re-generated each time make is invoked, in case the
  788. # value of BR2_EXTERNAL is changed.
  789. .PHONY: $(BUILD_DIR)/.br2-external.in
  790. $(BUILD_DIR)/.br2-external.in: $(BUILD_DIR)
  791. $(Q)support/scripts/br2-external -k -o "$(@)" $(BR2_EXTERNAL)
  792. # printvars prints all the variables currently defined in our
  793. # Makefiles. Alternatively, if a non-empty VARS variable is passed,
  794. # only the variables matching the make pattern passed in VARS are
  795. # displayed.
  796. printvars:
  797. @$(foreach V, \
  798. $(sort $(if $(VARS),$(filter $(VARS),$(.VARIABLES)),$(.VARIABLES))), \
  799. $(if $(filter-out environment% default automatic, \
  800. $(origin $V)), \
  801. $(if $(QUOTED_VARS),\
  802. $(info $V='$(subst ','\'',$(if $(RAW_VARS),$(value $V),$($V)))'), \
  803. $(info $V=$(if $(RAW_VARS),$(value $V),$($V))))))
  804. # ' Syntax colouring...
  805. clean:
  806. rm -rf $(TARGET_DIR) $(BINARIES_DIR) $(HOST_DIR) \
  807. $(BUILD_DIR) $(BASE_DIR)/staging \
  808. $(LEGAL_INFO_DIR) $(GRAPHS_DIR)
  809. distclean: clean
  810. ifeq ($(O),$(CURDIR)/output)
  811. rm -rf $(O)
  812. endif
  813. rm -rf $(TOPDIR)/dl $(BR2_CONFIG) $(CONFIG_DIR)/.config.old $(CONFIG_DIR)/..config.tmp \
  814. $(CONFIG_DIR)/.auto.deps $(BR2_EXTERNAL_FILE)
  815. help:
  816. @echo 'Cleaning:'
  817. @echo ' clean - delete all files created by build'
  818. @echo ' distclean - delete all non-source files (including .config)'
  819. @echo
  820. @echo 'Build:'
  821. @echo ' all - make world'
  822. @echo ' toolchain - build toolchain'
  823. @echo
  824. @echo 'Configuration:'
  825. @echo ' menuconfig - interactive curses-based configurator'
  826. @echo ' nconfig - interactive ncurses-based configurator'
  827. @echo ' xconfig - interactive Qt-based configurator'
  828. @echo ' gconfig - interactive GTK-based configurator'
  829. @echo ' oldconfig - resolve any unresolved symbols in .config'
  830. @echo ' silentoldconfig - Same as oldconfig, but quietly, additionally update deps'
  831. @echo ' olddefconfig - Same as silentoldconfig but sets new symbols to their default value'
  832. @echo ' randconfig - New config with random answer to all options'
  833. @echo ' defconfig - New config with default answer to all options'
  834. @echo ' BR2_DEFCONFIG, if set, is used as input'
  835. @echo ' savedefconfig - Save current config to BR2_DEFCONFIG (minimal config)'
  836. @echo ' allyesconfig - New config where all options are accepted with yes'
  837. @echo ' allnoconfig - New config where all options are answered with no'
  838. @echo ' randpackageconfig - New config with random answer to package options'
  839. @echo ' allyespackageconfig - New config where pkg options are accepted with yes'
  840. @echo ' allnopackageconfig - New config where package options are answered with no'
  841. @echo
  842. @echo 'Package-specific:'
  843. @echo ' <pkg> - Build and install <pkg> and all its dependencies'
  844. @echo ' <pkg>-source - Only download the source files for <pkg>'
  845. @echo ' <pkg>-extract - Extract <pkg> sources'
  846. @echo ' <pkg>-patch - Apply patches to <pkg>'
  847. @echo ' <pkg>-depends - Build <pkg>'\''s dependencies'
  848. @echo ' <pkg>-configure - Build <pkg> up to the configure step'
  849. @echo ' <pkg>-build - Build <pkg> up to the build step'
  850. @echo ' <pkg>-show-depends - List packages on which <pkg> depends'
  851. @echo ' <pkg>-show-rdepends - List packages which have <pkg> as a dependency'
  852. @echo ' <pkg>-graph-depends - Generate a graph of <pkg>'\''s dependencies'
  853. @echo ' <pkg>-graph-rdepends - Generate a graph of <pkg>'\''s reverse dependencies'
  854. @echo ' <pkg>-dirclean - Remove <pkg> build directory'
  855. @echo ' <pkg>-reconfigure - Restart the build from the configure step'
  856. @echo ' <pkg>-rebuild - Restart the build from the build step'
  857. $(foreach p,$(HELP_PACKAGES), \
  858. @echo $(sep) \
  859. @echo '$($(p)_NAME):' $(sep) \
  860. $($(p)_HELP_CMDS)$(sep))
  861. @echo
  862. @echo 'Documentation:'
  863. @echo ' manual - build manual in all formats'
  864. @echo ' manual-html - build manual in HTML'
  865. @echo ' manual-split-html - build manual in split HTML'
  866. @echo ' manual-pdf - build manual in PDF'
  867. @echo ' manual-text - build manual in text'
  868. @echo ' manual-epub - build manual in ePub'
  869. @echo ' graph-build - generate graphs of the build times'
  870. @echo ' graph-depends - generate graph of the dependency tree'
  871. @echo ' graph-size - generate stats of the filesystem size'
  872. @echo ' list-defconfigs - list all defconfigs (pre-configured minimal systems)'
  873. @echo
  874. @echo 'Miscellaneous:'
  875. @echo ' source - download all sources needed for offline-build'
  876. @echo ' source-check - check selected packages for valid download URLs'
  877. @echo ' external-deps - list external packages used'
  878. @echo ' legal-info - generate info about license compliance'
  879. @echo ' printvars - dump all the internal variables'
  880. @echo
  881. @echo ' make V=0|1 - 0 => quiet build (default), 1 => verbose build'
  882. @echo ' make O=dir - Locate all output files in "dir", including .config'
  883. @echo
  884. @echo 'For further details, see README, generate the Buildroot manual, or consult'
  885. @echo 'it on-line at http://buildroot.org/docs.html'
  886. @echo
  887. # List the defconfig files
  888. # $(1): base directory
  889. # $(2): br2-external name, empty for bundled
  890. define list-defconfigs
  891. @first=true; \
  892. for defconfig in $(1)/configs/*_defconfig; do \
  893. [ -f "$${defconfig}" ] || continue; \
  894. if $${first}; then \
  895. if [ "$(2)" ]; then \
  896. printf 'External configs in "$(call qstrip,$(2))":\n'; \
  897. else \
  898. printf "Built-in configs:\n"; \
  899. fi; \
  900. first=false; \
  901. fi; \
  902. defconfig="$${defconfig##*/}"; \
  903. printf " %-35s - Build for %s\n" "$${defconfig}" "$${defconfig%_defconfig}"; \
  904. done; \
  905. $${first} || printf "\n"
  906. endef
  907. # We iterate over BR2_EXTERNAL_NAMES rather than BR2_EXTERNAL_DIRS,
  908. # because we want to display the name of the br2-external tree.
  909. list-defconfigs:
  910. $(call list-defconfigs,$(TOPDIR))
  911. $(foreach name,$(BR2_EXTERNAL_NAMES),\
  912. $(call list-defconfigs,$(BR2_EXTERNAL_$(name)_PATH),\
  913. $(BR2_EXTERNAL_$(name)_DESC))$(sep))
  914. release: OUT = buildroot-$(BR2_VERSION)
  915. # Create release tarballs. We need to fiddle a bit to add the generated
  916. # documentation to the git output
  917. release:
  918. git archive --format=tar --prefix=$(OUT)/ HEAD > $(OUT).tar
  919. $(MAKE) O=$(OUT) manual-html manual-text manual-pdf
  920. $(MAKE) O=$(OUT) manual-clean
  921. tar rf $(OUT).tar $(OUT)
  922. gzip -9 -c < $(OUT).tar > $(OUT).tar.gz
  923. bzip2 -9 -c < $(OUT).tar > $(OUT).tar.bz2
  924. rm -rf $(OUT) $(OUT).tar
  925. print-version:
  926. @echo $(BR2_VERSION_FULL)
  927. .gitlab-ci.yml: .gitlab-ci.yml.in configs/*_defconfig
  928. (cd configs; LC_ALL=C ls -1 *_defconfig) | sed 's/$$/: *defconfig/' | cat $< - > $@
  929. include docs/manual/manual.mk
  930. -include $(foreach dir,$(BR2_EXTERNAL_DIRS),$(dir)/docs/*/*.mk)
  931. .PHONY: $(noconfig_targets)
  932. endif #umask / $(CURDIR) / $(O)