Makefile 44 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) 2014-2020 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 $(O))
  56. # gcc fails to build when the srcdir contains a '@'
  57. ifneq ($(findstring @,$(CANONICAL_O)),)
  58. $(error The build directory can not contain a '@')
  59. endif
  60. CANONICAL_CURDIR = $(realpath $(CURDIR))
  61. REQ_UMASK = 0022
  62. # Make sure O= is passed (with its absolute canonical path) everywhere the
  63. # toplevel makefile is called back.
  64. EXTRAMAKEARGS := O=$(CANONICAL_O)
  65. # Check Buildroot execution pre-requisites here.
  66. ifneq ($(shell umask):$(CURDIR):$(O),$(REQ_UMASK):$(CANONICAL_CURDIR):$(CANONICAL_O))
  67. .PHONY: _all $(MAKECMDGOALS)
  68. $(MAKECMDGOALS): _all
  69. @:
  70. _all:
  71. @umask $(REQ_UMASK) && \
  72. $(MAKE) -C $(CANONICAL_CURDIR) --no-print-directory \
  73. $(MAKECMDGOALS) $(EXTRAMAKEARGS)
  74. else # umask / $(CURDIR) / $(O)
  75. # This is our default rule, so must come first
  76. all:
  77. .PHONY: all
  78. # Set and export the version string
  79. export BR2_VERSION := 2020.02-rc1
  80. # Actual time the release is cut (for reproducible builds)
  81. BR2_VERSION_EPOCH = 1582065000
  82. # Save running make version since it's clobbered by the make package
  83. RUNNING_MAKE_VERSION := $(MAKE_VERSION)
  84. # Check for minimal make version (note: this check will break at make 10.x)
  85. MIN_MAKE_VERSION = 3.81
  86. ifneq ($(firstword $(sort $(RUNNING_MAKE_VERSION) $(MIN_MAKE_VERSION))),$(MIN_MAKE_VERSION))
  87. $(error You have make '$(RUNNING_MAKE_VERSION)' installed. GNU make >= $(MIN_MAKE_VERSION) is required)
  88. endif
  89. # absolute path
  90. TOPDIR := $(CURDIR)
  91. CONFIG_CONFIG_IN = Config.in
  92. CONFIG = support/kconfig
  93. DATE := $(shell date +%Y%m%d)
  94. # Compute the full local version string so packages can use it as-is
  95. # Need to export it, so it can be got from environment in children (eg. mconf)
  96. export BR2_VERSION_FULL := $(BR2_VERSION)$(shell $(TOPDIR)/support/scripts/setlocalversion)
  97. # List of targets and target patterns for which .config doesn't need to be read in
  98. noconfig_targets := menuconfig nconfig gconfig xconfig config oldconfig randconfig \
  99. defconfig %_defconfig allyesconfig allnoconfig alldefconfig syncconfig release \
  100. randpackageconfig allyespackageconfig allnopackageconfig \
  101. print-version olddefconfig distclean manual manual-% check-package
  102. # Some global targets do not trigger a build, but are used to collect
  103. # metadata, or do various checks. When such targets are triggered,
  104. # some packages should not do their configuration sanity
  105. # checks. Provide them a BR_BUILDING variable set to 'y' when we're
  106. # actually building and they should do their sanity checks.
  107. #
  108. # We're building in two situations: when MAKECMDGOALS is empty
  109. # (default target is to build), or when MAKECMDGOALS contains
  110. # something else than one of the nobuild_targets.
  111. nobuild_targets := source %-source \
  112. legal-info %-legal-info external-deps _external-deps \
  113. clean distclean help show-targets graph-depends \
  114. %-graph-depends %-show-depends %-show-version \
  115. graph-build graph-size list-defconfigs \
  116. savedefconfig update-defconfig printvars
  117. ifeq ($(MAKECMDGOALS),)
  118. BR_BUILDING = y
  119. else ifneq ($(filter-out $(nobuild_targets),$(MAKECMDGOALS)),)
  120. BR_BUILDING = y
  121. endif
  122. # We call make recursively to build packages. The command-line overrides that
  123. # are passed to Buildroot don't apply to those package build systems. In
  124. # particular, we don't want to pass down the O=<dir> option for out-of-tree
  125. # builds, because the value specified on the command line will not be correct
  126. # for packages.
  127. MAKEOVERRIDES :=
  128. # Include some helper macros and variables
  129. include support/misc/utils.mk
  130. # Set variables related to in-tree or out-of-tree build.
  131. # Here, both $(O) and $(CURDIR) are absolute canonical paths.
  132. ifeq ($(O),$(CURDIR)/output)
  133. CONFIG_DIR := $(CURDIR)
  134. NEED_WRAPPER =
  135. else
  136. CONFIG_DIR := $(O)
  137. NEED_WRAPPER = y
  138. endif
  139. # bash prints the name of the directory on 'cd <dir>' if CDPATH is
  140. # set, so unset it here to not cause problems. Notice that the export
  141. # line doesn't affect the environment of $(shell ..) calls.
  142. export CDPATH :=
  143. BASE_DIR := $(CANONICAL_O)
  144. $(if $(BASE_DIR),, $(error output directory "$(O)" does not exist))
  145. # Handling of BR2_EXTERNAL.
  146. #
  147. # The value of BR2_EXTERNAL is stored in .br-external in the output directory.
  148. # The location of the external.mk makefile fragments is computed in that file.
  149. # On subsequent invocations of make, this file is read in. BR2_EXTERNAL can
  150. # still be overridden on the command line, therefore the file is re-created
  151. # every time make is run.
  152. BR2_EXTERNAL_FILE = $(BASE_DIR)/.br2-external.mk
  153. -include $(BR2_EXTERNAL_FILE)
  154. $(shell support/scripts/br2-external -d '$(BASE_DIR)' $(BR2_EXTERNAL))
  155. BR2_EXTERNAL_ERROR =
  156. include $(BR2_EXTERNAL_FILE)
  157. ifneq ($(BR2_EXTERNAL_ERROR),)
  158. $(error $(BR2_EXTERNAL_ERROR))
  159. endif
  160. # To make sure that the environment variable overrides the .config option,
  161. # set this before including .config.
  162. ifneq ($(BR2_DL_DIR),)
  163. DL_DIR := $(BR2_DL_DIR)
  164. endif
  165. ifneq ($(BR2_CCACHE_DIR),)
  166. BR_CACHE_DIR := $(BR2_CCACHE_DIR)
  167. endif
  168. # Need that early, before we scan packages
  169. # Avoids doing the $(or...) everytime
  170. BR_GRAPH_OUT := $(or $(BR2_GRAPH_OUT),pdf)
  171. BUILD_DIR := $(BASE_DIR)/build
  172. BINARIES_DIR := $(BASE_DIR)/images
  173. BASE_TARGET_DIR := $(BASE_DIR)/target
  174. PER_PACKAGE_DIR := $(BASE_DIR)/per-package
  175. # initial definition so that 'make clean' works for most users, even without
  176. # .config. HOST_DIR will be overwritten later when .config is included.
  177. HOST_DIR := $(BASE_DIR)/host
  178. GRAPHS_DIR := $(BASE_DIR)/graphs
  179. LEGAL_INFO_DIR = $(BASE_DIR)/legal-info
  180. REDIST_SOURCES_DIR_TARGET = $(LEGAL_INFO_DIR)/sources
  181. REDIST_SOURCES_DIR_HOST = $(LEGAL_INFO_DIR)/host-sources
  182. LICENSE_FILES_DIR_TARGET = $(LEGAL_INFO_DIR)/licenses
  183. LICENSE_FILES_DIR_HOST = $(LEGAL_INFO_DIR)/host-licenses
  184. LEGAL_MANIFEST_CSV_TARGET = $(LEGAL_INFO_DIR)/manifest.csv
  185. LEGAL_MANIFEST_CSV_HOST = $(LEGAL_INFO_DIR)/host-manifest.csv
  186. LEGAL_WARNINGS = $(LEGAL_INFO_DIR)/.warnings
  187. LEGAL_REPORT = $(LEGAL_INFO_DIR)/README
  188. BR2_CONFIG = $(CONFIG_DIR)/.config
  189. # Pull in the user's configuration file
  190. ifeq ($(filter $(noconfig_targets),$(MAKECMDGOALS)),)
  191. -include $(BR2_CONFIG)
  192. endif
  193. ifeq ($(BR2_PER_PACKAGE_DIRECTORIES),)
  194. # Disable top-level parallel build if per-package directories is not
  195. # used. Indeed, per-package directories is necessary to guarantee
  196. # determinism and reproducibility with top-level parallel build.
  197. .NOTPARALLEL:
  198. endif
  199. # timezone and locale may affect build output
  200. ifeq ($(BR2_REPRODUCIBLE),y)
  201. export TZ = UTC
  202. export LANG = C
  203. export LC_ALL = C
  204. endif
  205. # To put more focus on warnings, be less verbose as default
  206. # Use 'make V=1' to see the full commands
  207. ifeq ("$(origin V)", "command line")
  208. KBUILD_VERBOSE = $(V)
  209. endif
  210. ifndef KBUILD_VERBOSE
  211. KBUILD_VERBOSE = 0
  212. endif
  213. ifeq ($(KBUILD_VERBOSE),1)
  214. Q =
  215. ifndef VERBOSE
  216. VERBOSE = 1
  217. endif
  218. export VERBOSE
  219. else
  220. Q = @
  221. endif
  222. # kconfig uses CONFIG_SHELL
  223. CONFIG_SHELL := $(SHELL)
  224. export SHELL CONFIG_SHELL Q KBUILD_VERBOSE
  225. ifndef HOSTAR
  226. HOSTAR := ar
  227. endif
  228. ifndef HOSTAS
  229. HOSTAS := as
  230. endif
  231. ifndef HOSTCC
  232. HOSTCC := gcc
  233. HOSTCC := $(shell which $(HOSTCC) || type -p $(HOSTCC) || echo gcc)
  234. endif
  235. HOSTCC_NOCCACHE := $(HOSTCC)
  236. ifndef HOSTCXX
  237. HOSTCXX := g++
  238. HOSTCXX := $(shell which $(HOSTCXX) || type -p $(HOSTCXX) || echo g++)
  239. endif
  240. HOSTCXX_NOCCACHE := $(HOSTCXX)
  241. ifndef HOSTCPP
  242. HOSTCPP := cpp
  243. endif
  244. ifndef HOSTLD
  245. HOSTLD := ld
  246. endif
  247. ifndef HOSTLN
  248. HOSTLN := ln
  249. endif
  250. ifndef HOSTNM
  251. HOSTNM := nm
  252. endif
  253. ifndef HOSTOBJCOPY
  254. HOSTOBJCOPY := objcopy
  255. endif
  256. ifndef HOSTRANLIB
  257. HOSTRANLIB := ranlib
  258. endif
  259. HOSTAR := $(shell which $(HOSTAR) || type -p $(HOSTAR) || echo ar)
  260. HOSTAS := $(shell which $(HOSTAS) || type -p $(HOSTAS) || echo as)
  261. HOSTCPP := $(shell which $(HOSTCPP) || type -p $(HOSTCPP) || echo cpp)
  262. HOSTLD := $(shell which $(HOSTLD) || type -p $(HOSTLD) || echo ld)
  263. HOSTLN := $(shell which $(HOSTLN) || type -p $(HOSTLN) || echo ln)
  264. HOSTNM := $(shell which $(HOSTNM) || type -p $(HOSTNM) || echo nm)
  265. HOSTOBJCOPY := $(shell which $(HOSTOBJCOPY) || type -p $(HOSTOBJCOPY) || echo objcopy)
  266. HOSTRANLIB := $(shell which $(HOSTRANLIB) || type -p $(HOSTRANLIB) || echo ranlib)
  267. SED := $(shell which sed || type -p sed) -i -e
  268. export HOSTAR HOSTAS HOSTCC HOSTCXX HOSTLD
  269. export HOSTCC_NOCCACHE HOSTCXX_NOCCACHE
  270. # Determine the userland we are running on.
  271. #
  272. # Note that, despite its name, we are not interested in the actual
  273. # architecture name. This is mostly used to determine whether some
  274. # of the binary tools (e.g. pre-built external toolchains) can run
  275. # on the current host. So we need to know if the userland we're
  276. # running on can actually run those toolchains.
  277. #
  278. # For example, a 64-bit prebuilt toolchain will not run on a 64-bit
  279. # kernel if the userland is 32-bit (e.g. in a chroot for example).
  280. #
  281. # So, we extract the first part of the tuple the host gcc was
  282. # configured to generate code for; we assume this is our userland.
  283. #
  284. export HOSTARCH := $(shell LC_ALL=C $(HOSTCC_NOCCACHE) -v 2>&1 | \
  285. sed -e '/^Target: \([^-]*\).*/!d' \
  286. -e 's//\1/' \
  287. -e 's/i.86/x86/' \
  288. -e 's/sun4u/sparc64/' \
  289. -e 's/arm.*/arm/' \
  290. -e 's/sa110/arm/' \
  291. -e 's/ppc64/powerpc64/' \
  292. -e 's/ppc/powerpc/' \
  293. -e 's/macppc/powerpc/' \
  294. -e 's/sh.*/sh/' )
  295. # When adding a new host gcc version in Config.in,
  296. # update the HOSTCC_MAX_VERSION variable:
  297. HOSTCC_MAX_VERSION := 9
  298. HOSTCC_VERSION := $(shell V=$$($(HOSTCC_NOCCACHE) --version | \
  299. sed -n -r 's/^.* ([0-9]*)\.([0-9]*)\.([0-9]*)[ ]*.*/\1 \2/p'); \
  300. [ "$${V%% *}" -le $(HOSTCC_MAX_VERSION) ] || V=$(HOSTCC_MAX_VERSION); \
  301. printf "%s" "$${V}")
  302. # For gcc >= 5.x, we only need the major version.
  303. ifneq ($(firstword $(HOSTCC_VERSION)),4)
  304. HOSTCC_VERSION := $(firstword $(HOSTCC_VERSION))
  305. endif
  306. ifeq ($(BR2_NEEDS_HOST_UTF8_LOCALE),y)
  307. # First, we try to use the user's configured locale (as that's the
  308. # language they'd expect messages to be displayed), then we favour
  309. # a non language-specific locale like C.UTF-8 if one is available,
  310. # so we sort with the C locale to get it at the top.
  311. # This is guaranteed to not be empty, because of the check in
  312. # support/dependencies/dependencies.sh
  313. HOST_UTF8_LOCALE := $(shell \
  314. ( echo $${LC_ALL:-$${LC_MESSAGES:-$${LANG}}}; \
  315. locale -a 2>/dev/null | LC_ALL=C sort \
  316. ) \
  317. | grep -i -E 'utf-?8$$' \
  318. | head -n 1)
  319. HOST_UTF8_LOCALE_ENV := LC_ALL=$(HOST_UTF8_LOCALE)
  320. endif
  321. # Make sure pkg-config doesn't look outside the buildroot tree
  322. HOST_PKG_CONFIG_PATH := $(PKG_CONFIG_PATH)
  323. unexport PKG_CONFIG_PATH
  324. unexport PKG_CONFIG_SYSROOT_DIR
  325. unexport PKG_CONFIG_LIBDIR
  326. # Having DESTDIR set in the environment confuses the installation
  327. # steps of some packages.
  328. unexport DESTDIR
  329. # Causes breakage with packages that needs host-ruby
  330. unexport RUBYOPT
  331. include package/pkg-utils.mk
  332. include package/doc-asciidoc.mk
  333. ifeq ($(BR2_HAVE_DOT_CONFIG),y)
  334. ################################################################################
  335. #
  336. # Hide troublesome environment variables from sub processes
  337. #
  338. ################################################################################
  339. unexport CROSS_COMPILE
  340. unexport ARCH
  341. unexport CC
  342. unexport LD
  343. unexport AR
  344. unexport CXX
  345. unexport CPP
  346. unexport RANLIB
  347. unexport CFLAGS
  348. unexport CXXFLAGS
  349. unexport GREP_OPTIONS
  350. unexport TAR_OPTIONS
  351. unexport CONFIG_SITE
  352. unexport QMAKESPEC
  353. unexport TERMINFO
  354. unexport MACHINE
  355. unexport O
  356. unexport GCC_COLORS
  357. unexport PLATFORM
  358. unexport OS
  359. GNU_HOST_NAME := $(shell support/gnuconfig/config.guess)
  360. PACKAGES :=
  361. PACKAGES_ALL :=
  362. # silent mode requested?
  363. QUIET := $(if $(findstring s,$(filter-out --%,$(MAKEFLAGS))),-q)
  364. # Strip off the annoying quoting
  365. ARCH := $(call qstrip,$(BR2_ARCH))
  366. KERNEL_ARCH := $(shell echo "$(ARCH)" | sed -e "s/-.*//" \
  367. -e s/i.86/i386/ -e s/sun4u/sparc64/ \
  368. -e s/arcle/arc/ \
  369. -e s/arceb/arc/ \
  370. -e s/arm.*/arm/ -e s/sa110/arm/ \
  371. -e s/aarch64.*/arm64/ \
  372. -e s/nds32.*/nds32/ \
  373. -e s/or1k/openrisc/ \
  374. -e s/parisc64/parisc/ \
  375. -e s/powerpc64.*/powerpc/ \
  376. -e s/ppc.*/powerpc/ -e s/mips.*/mips/ \
  377. -e s/riscv.*/riscv/ \
  378. -e s/sh.*/sh/ \
  379. -e s/microblazeel/microblaze/)
  380. ZCAT := $(call qstrip,$(BR2_ZCAT))
  381. BZCAT := $(call qstrip,$(BR2_BZCAT))
  382. XZCAT := $(call qstrip,$(BR2_XZCAT))
  383. LZCAT := $(call qstrip,$(BR2_LZCAT))
  384. TAR_OPTIONS = $(call qstrip,$(BR2_TAR_OPTIONS)) -xf
  385. ifeq ($(BR2_PER_PACKAGE_DIRECTORIES),y)
  386. HOST_DIR = $(if $(PKG),$(PER_PACKAGE_DIR)/$($(PKG)_NAME)/host,$(call qstrip,$(BR2_HOST_DIR)))
  387. TARGET_DIR = $(if $(ROOTFS),$(ROOTFS_$(ROOTFS)_TARGET_DIR),$(if $(PKG),$(PER_PACKAGE_DIR)/$($(PKG)_NAME)/target,$(BASE_TARGET_DIR)))
  388. else
  389. HOST_DIR := $(call qstrip,$(BR2_HOST_DIR))
  390. TARGET_DIR = $(if $(ROOTFS),$(ROOTFS_$(ROOTFS)_TARGET_DIR),$(BASE_TARGET_DIR))
  391. endif
  392. ifneq ($(HOST_DIR),$(BASE_DIR)/host)
  393. HOST_DIR_SYMLINK = $(BASE_DIR)/host
  394. $(HOST_DIR_SYMLINK): $(BASE_DIR)
  395. ln -snf $(HOST_DIR) $(HOST_DIR_SYMLINK)
  396. endif
  397. STAGING_DIR_SYMLINK = $(BASE_DIR)/staging
  398. $(STAGING_DIR_SYMLINK): $(BASE_DIR)
  399. ln -snf $(STAGING_DIR) $(STAGING_DIR_SYMLINK)
  400. # Quotes are needed for spaces and all in the original PATH content.
  401. BR_PATH = "$(HOST_DIR)/bin:$(HOST_DIR)/sbin:$(PATH)"
  402. # Location of a file giving a big fat warning that output/target
  403. # should not be used as the root filesystem.
  404. TARGET_DIR_WARNING_FILE = $(TARGET_DIR)/THIS_IS_NOT_YOUR_ROOT_FILESYSTEM
  405. ifeq ($(BR2_CCACHE),y)
  406. CCACHE = $(HOST_DIR)/bin/ccache
  407. BR_CACHE_DIR ?= $(call qstrip,$(BR2_CCACHE_DIR))
  408. export BR_CACHE_DIR
  409. HOSTCC = $(CCACHE) $(HOSTCC_NOCCACHE)
  410. HOSTCXX = $(CCACHE) $(HOSTCXX_NOCCACHE)
  411. else
  412. export BR_NO_CCACHE
  413. endif
  414. # Scripts in support/ or post-build scripts may need to reference
  415. # these locations, so export them so it is easier to use
  416. export BR2_CONFIG
  417. export BR2_REPRODUCIBLE
  418. export TARGET_DIR
  419. export STAGING_DIR
  420. export HOST_DIR
  421. export BINARIES_DIR
  422. export BASE_DIR
  423. ################################################################################
  424. #
  425. # You should probably leave this stuff alone unless you know
  426. # what you are doing.
  427. #
  428. ################################################################################
  429. all: world
  430. # Include legacy before the other things, because package .mk files
  431. # may rely on it.
  432. include Makefile.legacy
  433. include system/system.mk
  434. include package/Makefile.in
  435. # arch/arch.mk must be after package/Makefile.in because it may need to
  436. # complement variables defined therein, like BR_NO_CHECK_HASH_FOR.
  437. include arch/arch.mk
  438. include support/dependencies/dependencies.mk
  439. include $(sort $(wildcard toolchain/*.mk))
  440. include $(sort $(wildcard toolchain/*/*.mk))
  441. ifeq ($(BR2_REPRODUCIBLE),y)
  442. # If SOURCE_DATE_EPOCH has not been set then use the commit date, or the last
  443. # release date if the source tree is not within a Git repository.
  444. # See: https://reproducible-builds.org/specs/source-date-epoch/
  445. BR2_VERSION_GIT_EPOCH := $(shell $(GIT) log -1 --format=%at 2> /dev/null)
  446. export SOURCE_DATE_EPOCH ?= $(or $(BR2_VERSION_GIT_EPOCH),$(BR2_VERSION_EPOCH))
  447. endif
  448. # Include the package override file if one has been provided in the
  449. # configuration.
  450. PACKAGE_OVERRIDE_FILE = $(call qstrip,$(BR2_PACKAGE_OVERRIDE_FILE))
  451. ifneq ($(PACKAGE_OVERRIDE_FILE),)
  452. -include $(PACKAGE_OVERRIDE_FILE)
  453. endif
  454. include $(sort $(wildcard package/*/*.mk))
  455. include boot/common.mk
  456. include linux/linux.mk
  457. include fs/common.mk
  458. # If using a br2-external tree, the BR2_EXTERNAL_$(NAME)_PATH variables
  459. # are also present in the .config file. Since .config is included after
  460. # we defined them in the Makefile, the values for those variables are
  461. # quoted. We just include the generated Makefile fragment .br2-external.mk
  462. # a third time, which will set those variables to the un-quoted values.
  463. include $(BR2_EXTERNAL_FILE)
  464. # Nothing to include if no BR2_EXTERNAL tree in use
  465. include $(BR2_EXTERNAL_MKS)
  466. # Now we are sure we have all the packages scanned and defined. We now
  467. # check for each package in the list of enabled packages, that all its
  468. # dependencies are indeed enabled.
  469. #
  470. # Only trigger the check for default builds. If the user forces building
  471. # a package, even if not enabled in the configuration, we want to accept
  472. # it. However; we also want to be able to force checking the dependencies
  473. # if the user so desires. Forcing a dependency check is useful in the case
  474. # of test-pkg, as we want to make sure during testing, that a package has
  475. # all the dependencies selected in the config file.
  476. #
  477. ifeq ($(MAKECMDGOALS),)
  478. BR_FORCE_CHECK_DEPENDENCIES = YES
  479. endif
  480. ifeq ($(BR_FORCE_CHECK_DEPENDENCIES),YES)
  481. define CHECK_ONE_DEPENDENCY
  482. ifeq ($$($(2)_TYPE),target)
  483. ifeq ($$($(2)_IS_VIRTUAL),)
  484. ifneq ($$($$($(2)_KCONFIG_VAR)),y)
  485. $$(error $$($(2)_NAME) is in the dependency chain of $$($(1)_NAME) that \
  486. has added it to its _DEPENDENCIES variable without selecting it or \
  487. depending on it from Config.in)
  488. endif
  489. endif
  490. endif
  491. endef
  492. $(foreach pkg,$(call UPPERCASE,$(PACKAGES)),\
  493. $(foreach dep,$(call UPPERCASE,$($(pkg)_FINAL_ALL_DEPENDENCIES)),\
  494. $(eval $(call CHECK_ONE_DEPENDENCY,$(pkg),$(dep))$(sep))))
  495. endif
  496. $(BUILD_DIR)/buildroot-config/auto.conf: $(BR2_CONFIG)
  497. $(MAKE1) $(EXTRAMAKEARGS) HOSTCC="$(HOSTCC_NOCCACHE)" HOSTCXX="$(HOSTCXX_NOCCACHE)" syncconfig
  498. .PHONY: prepare
  499. prepare: $(BUILD_DIR)/buildroot-config/auto.conf
  500. .PHONY: world
  501. world: target-post-image
  502. .PHONY: prepare-sdk
  503. prepare-sdk: world
  504. @$(call MESSAGE,"Rendering the SDK relocatable")
  505. PER_PACKAGE_DIR=$(PER_PACKAGE_DIR) $(TOPDIR)/support/scripts/fix-rpath host
  506. PER_PACKAGE_DIR=$(PER_PACKAGE_DIR) $(TOPDIR)/support/scripts/fix-rpath staging
  507. $(INSTALL) -m 755 $(TOPDIR)/support/misc/relocate-sdk.sh $(HOST_DIR)/relocate-sdk.sh
  508. mkdir -p $(HOST_DIR)/share/buildroot
  509. echo $(HOST_DIR) > $(HOST_DIR)/share/buildroot/sdk-location
  510. BR2_SDK_PREFIX ?= $(GNU_TARGET_NAME)_sdk-buildroot
  511. .PHONY: sdk
  512. sdk: prepare-sdk $(BR2_TAR_HOST_DEPENDENCY)
  513. @$(call MESSAGE,"Generating SDK tarball")
  514. $(if $(BR2_SDK_PREFIX),,$(error BR2_SDK_PREFIX can not be empty))
  515. $(Q)mkdir -p $(BINARIES_DIR)
  516. $(TAR) czf "$(BINARIES_DIR)/$(BR2_SDK_PREFIX).tar.gz" \
  517. --owner=0 --group=0 --numeric-owner \
  518. --transform='s#^$(patsubst /%,%,$(HOST_DIR))#$(BR2_SDK_PREFIX)#' \
  519. -C / $(patsubst /%,%,$(HOST_DIR))
  520. RSYNC_VCS_EXCLUSIONS = \
  521. --exclude .svn --exclude .git --exclude .hg --exclude .bzr \
  522. --exclude CVS
  523. # When stripping, obey to BR2_STRIP_EXCLUDE_DIRS and
  524. # BR2_STRIP_EXCLUDE_FILES
  525. STRIP_FIND_COMMON_CMD = \
  526. find $(TARGET_DIR) \
  527. $(if $(call qstrip,$(BR2_STRIP_EXCLUDE_DIRS)), \
  528. \( $(call finddirclauses,$(TARGET_DIR),$(call qstrip,$(BR2_STRIP_EXCLUDE_DIRS))) \) \
  529. -prune -o \
  530. ) \
  531. $(if $(call qstrip,$(BR2_STRIP_EXCLUDE_FILES)), \
  532. -not \( $(call findfileclauses,$(call qstrip,$(BR2_STRIP_EXCLUDE_FILES))) \) )
  533. # Regular stripping for everything, except libpthread, ld-*.so and
  534. # kernel modules:
  535. # - libpthread.so: a non-stripped libpthread shared library is needed for
  536. # proper debugging of pthread programs using gdb.
  537. # - ld.so: a non-stripped dynamic linker library is needed for valgrind
  538. # - kernel modules (*.ko): do not function properly when stripped like normal
  539. # applications and libraries. Normally kernel modules are already excluded
  540. # by the executable permission check, so the explicit exclusion is only
  541. # done for kernel modules with incorrect permissions.
  542. STRIP_FIND_CMD = \
  543. $(STRIP_FIND_COMMON_CMD) \
  544. -type f \( -perm /111 -o -name '*.so*' \) \
  545. -not \( $(call findfileclauses,libpthread*.so* ld-*.so* *.ko) \) \
  546. -print0
  547. # Special stripping (only debugging symbols) for libpthread and ld-*.so.
  548. STRIP_FIND_SPECIAL_LIBS_CMD = \
  549. $(STRIP_FIND_COMMON_CMD) \
  550. \( -name 'ld-*.so*' -o -name 'libpthread*.so*' \) \
  551. -print0
  552. ifeq ($(BR2_ECLIPSE_REGISTER),y)
  553. define TOOLCHAIN_ECLIPSE_REGISTER
  554. ./support/scripts/eclipse-register-toolchain `readlink -f $(O)` \
  555. $(notdir $(TARGET_CROSS)) $(BR2_ARCH)
  556. endef
  557. TARGET_FINALIZE_HOOKS += TOOLCHAIN_ECLIPSE_REGISTER
  558. endif
  559. # Generate locale data. Basically, we call the localedef program
  560. # (built by the host-localedef package) for each locale. The input
  561. # data comes preferably from the toolchain, or if the toolchain does
  562. # not have them (Linaro toolchains), we use the ones available on the
  563. # host machine.
  564. ifeq ($(BR2_TOOLCHAIN_USES_GLIBC),y)
  565. GLIBC_GENERATE_LOCALES = $(call qstrip,$(BR2_GENERATE_LOCALE))
  566. ifneq ($(GLIBC_GENERATE_LOCALES),)
  567. PACKAGES += host-localedef
  568. define GENERATE_GLIBC_LOCALES
  569. $(Q)mkdir -p $(TARGET_DIR)/usr/lib/locale/
  570. $(Q)for locale in $(GLIBC_GENERATE_LOCALES) ; do \
  571. inputfile=`echo $${locale} | cut -f1 -d'.'` ; \
  572. charmap=`echo $${locale} | cut -f2 -d'.' -s` ; \
  573. if test -z "$${charmap}" ; then \
  574. charmap="UTF-8" ; \
  575. fi ; \
  576. echo "Generating locale $${inputfile}.$${charmap}" ; \
  577. I18NPATH=$(STAGING_DIR)/usr/share/i18n:/usr/share/i18n \
  578. $(HOST_DIR)/bin/localedef \
  579. --prefix=$(TARGET_DIR) \
  580. --$(call LOWERCASE,$(BR2_ENDIAN))-endian \
  581. -i $${inputfile} -f $${charmap} \
  582. $${locale} ; \
  583. done
  584. endef
  585. TARGET_FINALIZE_HOOKS += GENERATE_GLIBC_LOCALES
  586. endif
  587. endif
  588. ifeq ($(BR2_ENABLE_LOCALE_PURGE),y)
  589. LOCALE_WHITELIST = $(BUILD_DIR)/locales.nopurge
  590. LOCALE_NOPURGE = $(call qstrip,$(BR2_ENABLE_LOCALE_WHITELIST))
  591. # This piece of junk does the following:
  592. # First collect the whitelist in a file.
  593. # Then go over all the locale dirs and for each subdir, check if it exists
  594. # in the whitelist file. If it doesn't, kill it.
  595. # Finally, specifically for X11, regenerate locale.dir from the whitelist.
  596. define PURGE_LOCALES
  597. rm -f $(LOCALE_WHITELIST)
  598. for i in $(LOCALE_NOPURGE) locale-archive; do echo $$i >> $(LOCALE_WHITELIST); done
  599. for dir in $(wildcard $(addprefix $(TARGET_DIR),/usr/share/locale /usr/share/X11/locale /usr/lib/locale)); \
  600. do \
  601. for langdir in $$dir/*; \
  602. do \
  603. if [ -e "$${langdir}" ]; \
  604. then \
  605. grep -qx "$${langdir##*/}" $(LOCALE_WHITELIST) || rm -rf $$langdir; \
  606. fi \
  607. done; \
  608. done
  609. if [ -d $(TARGET_DIR)/usr/share/X11/locale ]; \
  610. then \
  611. for lang in $(LOCALE_NOPURGE); \
  612. do \
  613. if [ -f $(TARGET_DIR)/usr/share/X11/locale/$$lang/XLC_LOCALE ]; \
  614. then \
  615. echo "$$lang/XLC_LOCALE: $$lang"; \
  616. fi \
  617. done > $(TARGET_DIR)/usr/share/X11/locale/locale.dir; \
  618. fi
  619. endef
  620. TARGET_FINALIZE_HOOKS += PURGE_LOCALES
  621. endif
  622. $(TARGETS_ROOTFS): target-finalize
  623. # Avoid the rootfs name leaking down the dependency chain
  624. target-finalize: ROOTFS=
  625. .PHONY: host-finalize
  626. host-finalize: $(PACKAGES) $(HOST_DIR) $(HOST_DIR_SYMLINK)
  627. @$(call MESSAGE,"Finalizing host directory")
  628. $(call per-package-rsync,$(sort $(PACKAGES)),host,$(HOST_DIR))
  629. .PHONY: staging-finalize
  630. staging-finalize: $(STAGING_DIR_SYMLINK)
  631. .PHONY: target-finalize
  632. target-finalize: $(PACKAGES) $(TARGET_DIR) host-finalize
  633. @$(call MESSAGE,"Finalizing target directory")
  634. $(call per-package-rsync,$(sort $(PACKAGES)),target,$(TARGET_DIR))
  635. # Check files that are touched by more than one package
  636. $(foreach hook,$(TARGET_FINALIZE_HOOKS),$($(hook))$(sep))
  637. rm -rf $(TARGET_DIR)/usr/include $(TARGET_DIR)/usr/share/aclocal \
  638. $(TARGET_DIR)/usr/lib/pkgconfig $(TARGET_DIR)/usr/share/pkgconfig \
  639. $(TARGET_DIR)/usr/lib/cmake $(TARGET_DIR)/usr/share/cmake
  640. find $(TARGET_DIR)/usr/{lib,share}/ -name '*.cmake' -print0 | xargs -0 rm -f
  641. find $(TARGET_DIR)/lib/ $(TARGET_DIR)/usr/lib/ $(TARGET_DIR)/usr/libexec/ \
  642. \( -name '*.a' -o -name '*.la' \) -print0 | xargs -0 rm -f
  643. ifneq ($(BR2_PACKAGE_GDB),y)
  644. rm -rf $(TARGET_DIR)/usr/share/gdb
  645. endif
  646. ifneq ($(BR2_PACKAGE_BASH),y)
  647. rm -rf $(TARGET_DIR)/usr/share/bash-completion
  648. endif
  649. ifneq ($(BR2_PACKAGE_ZSH),y)
  650. rm -rf $(TARGET_DIR)/usr/share/zsh
  651. endif
  652. rm -rf $(TARGET_DIR)/usr/man $(TARGET_DIR)/usr/share/man
  653. rm -rf $(TARGET_DIR)/usr/info $(TARGET_DIR)/usr/share/info
  654. rm -rf $(TARGET_DIR)/usr/doc $(TARGET_DIR)/usr/share/doc
  655. rm -rf $(TARGET_DIR)/usr/share/gtk-doc
  656. rmdir $(TARGET_DIR)/usr/share 2>/dev/null || true
  657. $(STRIP_FIND_CMD) | xargs -0 $(STRIPCMD) 2>/dev/null || true
  658. $(STRIP_FIND_SPECIAL_LIBS_CMD) | xargs -0 -r $(STRIPCMD) $(STRIP_STRIP_DEBUG) 2>/dev/null || true
  659. test -f $(TARGET_DIR)/etc/ld.so.conf && \
  660. { echo "ERROR: we shouldn't have a /etc/ld.so.conf file"; exit 1; } || true
  661. test -d $(TARGET_DIR)/etc/ld.so.conf.d && \
  662. { echo "ERROR: we shouldn't have a /etc/ld.so.conf.d directory"; exit 1; } || true
  663. mkdir -p $(TARGET_DIR)/etc
  664. ( \
  665. echo "NAME=Buildroot"; \
  666. echo "VERSION=$(BR2_VERSION_FULL)"; \
  667. echo "ID=buildroot"; \
  668. echo "VERSION_ID=$(BR2_VERSION)"; \
  669. echo "PRETTY_NAME=\"Buildroot $(BR2_VERSION)\"" \
  670. ) > $(TARGET_DIR)/usr/lib/os-release
  671. ln -sf ../usr/lib/os-release $(TARGET_DIR)/etc
  672. @$(call MESSAGE,"Sanitizing RPATH in target tree")
  673. PER_PACKAGE_DIR=$(PER_PACKAGE_DIR) $(TOPDIR)/support/scripts/fix-rpath target
  674. # For a merged /usr, ensure that /lib, /bin and /sbin and their /usr
  675. # counterparts are appropriately setup as symlinks ones to the others.
  676. ifeq ($(BR2_ROOTFS_MERGED_USR),y)
  677. @$(foreach d, $(call qstrip,$(BR2_ROOTFS_OVERLAY)), \
  678. $(call MESSAGE,"Sanity check in overlay $(d)"); \
  679. not_merged_dirs="$$(support/scripts/check-merged-usr.sh $(d))"; \
  680. test -n "$$not_merged_dirs" && { \
  681. echo "ERROR: The overlay in $(d) is not" \
  682. "using a merged /usr for the following directories:" \
  683. $$not_merged_dirs; \
  684. exit 1; \
  685. } || true$(sep))
  686. endif # merged /usr
  687. @$(foreach d, $(call qstrip,$(BR2_ROOTFS_OVERLAY)), \
  688. $(call MESSAGE,"Copying overlay $(d)"); \
  689. $(call SYSTEM_RSYNC,$(d),$(TARGET_DIR))$(sep))
  690. @$(foreach s, $(call qstrip,$(BR2_ROOTFS_POST_BUILD_SCRIPT)), \
  691. $(call MESSAGE,"Executing post-build script $(s)"); \
  692. $(EXTRA_ENV) $(s) $(TARGET_DIR) $(call qstrip,$(BR2_ROOTFS_POST_SCRIPT_ARGS))$(sep))
  693. touch $(TARGET_DIR)/usr
  694. # AFTER ALL FILE-CHANGING ACTIONS:
  695. # Update timestamps in internal file list to fix attribution of files
  696. # to packages on subsequent builds
  697. @$(call step_pkg_size_file_list,$(TARGET_DIR))
  698. @$(call step_pkg_size_finalize)
  699. @$(call step_pkg_size_file_list,$(STAGING_DIR),-staging)
  700. @$(call step_pkg_size_finalize,-staging)
  701. @$(call step_pkg_size_file_list,$(HOST_DIR),-host)
  702. @$(call step_pkg_size_finalize,-host)
  703. .PHONY: target-post-image
  704. target-post-image: $(TARGETS_ROOTFS) target-finalize staging-finalize
  705. @rm -f $(ROOTFS_COMMON_TAR)
  706. $(Q)mkdir -p $(BINARIES_DIR)
  707. @$(foreach s, $(call qstrip,$(BR2_ROOTFS_POST_IMAGE_SCRIPT)), \
  708. $(call MESSAGE,"Executing post-image script $(s)"); \
  709. $(EXTRA_ENV) $(s) $(BINARIES_DIR) $(call qstrip,$(BR2_ROOTFS_POST_SCRIPT_ARGS))$(sep))
  710. .PHONY: source
  711. source: $(foreach p,$(PACKAGES),$(p)-all-source)
  712. .PHONY: _external-deps external-deps
  713. _external-deps: $(foreach p,$(PACKAGES),$(p)-all-external-deps)
  714. external-deps:
  715. @$(MAKE1) -Bs $(EXTRAMAKEARGS) _external-deps | sort -u
  716. .PHONY: legal-info-clean
  717. legal-info-clean:
  718. @rm -fr $(LEGAL_INFO_DIR)
  719. .PHONY: legal-info-prepare
  720. legal-info-prepare: $(LEGAL_INFO_DIR)
  721. @$(call MESSAGE,"Buildroot $(BR2_VERSION_FULL) Collecting legal info")
  722. @$(call legal-license-file,buildroot,buildroot,support/legal-info/buildroot.hash,COPYING,COPYING,HOST)
  723. @$(call legal-manifest,TARGET,PACKAGE,VERSION,LICENSE,LICENSE FILES,SOURCE ARCHIVE,SOURCE SITE,DEPENDENCIES WITH LICENSES)
  724. @$(call legal-manifest,HOST,PACKAGE,VERSION,LICENSE,LICENSE FILES,SOURCE ARCHIVE,SOURCE SITE,DEPENDENCIES WITH LICENSES)
  725. @$(call legal-manifest,HOST,buildroot,$(BR2_VERSION_FULL),GPL-2.0+,COPYING,not saved,not saved)
  726. @$(call legal-warning,the Buildroot source code has not been saved)
  727. @cp $(BR2_CONFIG) $(LEGAL_INFO_DIR)/buildroot.config
  728. .PHONY: legal-info
  729. legal-info: legal-info-clean legal-info-prepare $(foreach p,$(PACKAGES),$(p)-all-legal-info) \
  730. $(REDIST_SOURCES_DIR_TARGET) $(REDIST_SOURCES_DIR_HOST)
  731. @cat support/legal-info/README.header >>$(LEGAL_REPORT)
  732. @if [ -r $(LEGAL_WARNINGS) ]; then \
  733. cat support/legal-info/README.warnings-header \
  734. $(LEGAL_WARNINGS) >>$(LEGAL_REPORT); \
  735. cat $(LEGAL_WARNINGS); fi
  736. @rm -f $(LEGAL_WARNINGS)
  737. @(cd $(LEGAL_INFO_DIR); \
  738. find * -type f -exec sha256sum {} + | LC_ALL=C sort -k2 \
  739. >.legal-info.sha256; \
  740. mv .legal-info.sha256 legal-info.sha256)
  741. @echo "Legal info produced in $(LEGAL_INFO_DIR)"
  742. .PHONY: show-targets
  743. show-targets:
  744. @echo $(sort $(PACKAGES)) $(sort $(TARGETS_ROOTFS))
  745. .PHONY: show-build-order
  746. show-build-order: $(patsubst %,%-show-build-order,$(PACKAGES))
  747. .PHONY: graph-build
  748. graph-build: $(O)/build/build-time.log
  749. @install -d $(GRAPHS_DIR)
  750. $(foreach o,name build duration,./support/scripts/graph-build-time \
  751. --type=histogram --order=$(o) --input=$(<) \
  752. --output=$(GRAPHS_DIR)/build.hist-$(o).$(BR_GRAPH_OUT) \
  753. $(if $(BR2_GRAPH_ALT),--alternate-colors)$(sep))
  754. $(foreach t,packages steps,./support/scripts/graph-build-time \
  755. --type=pie-$(t) --input=$(<) \
  756. --output=$(GRAPHS_DIR)/build.pie-$(t).$(BR_GRAPH_OUT) \
  757. $(if $(BR2_GRAPH_ALT),--alternate-colors)$(sep))
  758. .PHONY: graph-depends-requirements
  759. graph-depends-requirements:
  760. @dot -? >/dev/null 2>&1 || \
  761. { echo "ERROR: The 'dot' program from Graphviz is needed for graph-depends" >&2; exit 1; }
  762. .PHONY: graph-depends
  763. graph-depends: graph-depends-requirements
  764. @$(INSTALL) -d $(GRAPHS_DIR)
  765. @cd "$(CONFIG_DIR)"; \
  766. $(TOPDIR)/support/scripts/graph-depends $(BR2_GRAPH_DEPS_OPTS) \
  767. --direct -o $(GRAPHS_DIR)/$(@).dot
  768. dot $(BR2_GRAPH_DOT_OPTS) -T$(BR_GRAPH_OUT) \
  769. -o $(GRAPHS_DIR)/$(@).$(BR_GRAPH_OUT) \
  770. $(GRAPHS_DIR)/$(@).dot
  771. .PHONY: graph-size
  772. graph-size:
  773. $(Q)mkdir -p $(GRAPHS_DIR)
  774. $(Q)$(TOPDIR)/support/scripts/size-stats --builddir $(BASE_DIR) \
  775. --graph $(GRAPHS_DIR)/graph-size.$(BR_GRAPH_OUT) \
  776. --file-size-csv $(GRAPHS_DIR)/file-size-stats.csv \
  777. --package-size-csv $(GRAPHS_DIR)/package-size-stats.csv \
  778. $(BR2_GRAPH_SIZE_OPTS)
  779. .PHONY: check-dependencies
  780. check-dependencies:
  781. @cd "$(CONFIG_DIR)"; \
  782. $(TOPDIR)/support/scripts/graph-depends -C
  783. .PHONY: show-info
  784. show-info:
  785. @:
  786. $(info $(call clean-json, \
  787. { $(foreach p, \
  788. $(sort $(foreach i,$(PACKAGES) $(TARGETS_ROOTFS), \
  789. $(i) \
  790. $($(call UPPERCASE,$(i))_FINAL_RECURSIVE_DEPENDENCIES) \
  791. ) \
  792. ), \
  793. $(call json-info,$(call UPPERCASE,$(p)))$(comma) \
  794. ) } \
  795. ) \
  796. )
  797. else # ifeq ($(BR2_HAVE_DOT_CONFIG),y)
  798. # Some subdirectories are also package names. To avoid that "make linux"
  799. # on an unconfigured tree produces "Nothing to be done", add an explicit
  800. # rule for it.
  801. # Also for 'all' we error out and ask the user to configure first.
  802. .PHONY: linux toolchain
  803. linux toolchain all: outputmakefile
  804. $(error Please configure Buildroot first (e.g. "make menuconfig"))
  805. @exit 1
  806. endif # ifeq ($(BR2_HAVE_DOT_CONFIG),y)
  807. # configuration
  808. # ---------------------------------------------------------------------------
  809. HOSTCFLAGS = $(CFLAGS_FOR_BUILD)
  810. export HOSTCFLAGS
  811. $(BUILD_DIR)/buildroot-config/%onf:
  812. mkdir -p $(@D)/lxdialog
  813. PKG_CONFIG_PATH="$(HOST_PKG_CONFIG_PATH)" $(MAKE) CC="$(HOSTCC_NOCCACHE)" HOSTCC="$(HOSTCC_NOCCACHE)" \
  814. obj=$(@D) -C $(CONFIG) -f Makefile.br $(@F)
  815. DEFCONFIG = $(call qstrip,$(BR2_DEFCONFIG))
  816. # We don't want to fully expand BR2_DEFCONFIG here, so Kconfig will
  817. # recognize that if it's still at its default $(CONFIG_DIR)/defconfig
  818. COMMON_CONFIG_ENV = \
  819. BR2_DEFCONFIG='$(call qstrip,$(value BR2_DEFCONFIG))' \
  820. KCONFIG_AUTOCONFIG=$(BUILD_DIR)/buildroot-config/auto.conf \
  821. KCONFIG_AUTOHEADER=$(BUILD_DIR)/buildroot-config/autoconf.h \
  822. KCONFIG_TRISTATE=$(BUILD_DIR)/buildroot-config/tristate.config \
  823. BR2_CONFIG=$(BR2_CONFIG) \
  824. HOST_GCC_VERSION="$(HOSTCC_VERSION)" \
  825. BASE_DIR=$(BASE_DIR) \
  826. SKIP_LEGACY=
  827. xconfig: $(BUILD_DIR)/buildroot-config/qconf outputmakefile
  828. @$(COMMON_CONFIG_ENV) $< $(CONFIG_CONFIG_IN)
  829. gconfig: $(BUILD_DIR)/buildroot-config/gconf outputmakefile
  830. @$(COMMON_CONFIG_ENV) srctree=$(TOPDIR) $< $(CONFIG_CONFIG_IN)
  831. menuconfig: $(BUILD_DIR)/buildroot-config/mconf outputmakefile
  832. @$(COMMON_CONFIG_ENV) $< $(CONFIG_CONFIG_IN)
  833. nconfig: $(BUILD_DIR)/buildroot-config/nconf outputmakefile
  834. @$(COMMON_CONFIG_ENV) $< $(CONFIG_CONFIG_IN)
  835. config: $(BUILD_DIR)/buildroot-config/conf outputmakefile
  836. @$(COMMON_CONFIG_ENV) $< $(CONFIG_CONFIG_IN)
  837. # For the config targets that automatically select options, we pass
  838. # SKIP_LEGACY=y to disable the legacy options. However, in that case
  839. # no values are set for the legacy options so a subsequent oldconfig
  840. # will query them. Therefore, run an additional olddefconfig.
  841. randconfig allyesconfig alldefconfig allnoconfig: $(BUILD_DIR)/buildroot-config/conf outputmakefile
  842. @$(COMMON_CONFIG_ENV) SKIP_LEGACY=y $< --$@ $(CONFIG_CONFIG_IN)
  843. @$(COMMON_CONFIG_ENV) $< --olddefconfig $(CONFIG_CONFIG_IN) >/dev/null
  844. randpackageconfig allyespackageconfig allnopackageconfig: $(BUILD_DIR)/buildroot-config/conf outputmakefile
  845. @grep -v BR2_PACKAGE_ $(BR2_CONFIG) > $(CONFIG_DIR)/.config.nopkg
  846. @$(COMMON_CONFIG_ENV) SKIP_LEGACY=y \
  847. KCONFIG_ALLCONFIG=$(CONFIG_DIR)/.config.nopkg \
  848. $< --$(subst package,,$@) $(CONFIG_CONFIG_IN)
  849. @rm -f $(CONFIG_DIR)/.config.nopkg
  850. @$(COMMON_CONFIG_ENV) $< --olddefconfig $(CONFIG_CONFIG_IN) >/dev/null
  851. oldconfig syncconfig olddefconfig: $(BUILD_DIR)/buildroot-config/conf outputmakefile
  852. @$(COMMON_CONFIG_ENV) $< --$@ $(CONFIG_CONFIG_IN)
  853. defconfig: $(BUILD_DIR)/buildroot-config/conf outputmakefile
  854. @$(COMMON_CONFIG_ENV) $< --defconfig$(if $(DEFCONFIG),=$(DEFCONFIG)) $(CONFIG_CONFIG_IN)
  855. define percent_defconfig
  856. # Override the BR2_DEFCONFIG from COMMON_CONFIG_ENV with the new defconfig
  857. %_defconfig: $(BUILD_DIR)/buildroot-config/conf $(1)/configs/%_defconfig outputmakefile
  858. @$$(COMMON_CONFIG_ENV) BR2_DEFCONFIG=$(1)/configs/$$@ \
  859. $$< --defconfig=$(1)/configs/$$@ $$(CONFIG_CONFIG_IN)
  860. endef
  861. $(eval $(foreach d,$(call reverse,$(TOPDIR) $(BR2_EXTERNAL_DIRS)),$(call percent_defconfig,$(d))$(sep)))
  862. update-defconfig: savedefconfig
  863. savedefconfig: $(BUILD_DIR)/buildroot-config/conf outputmakefile
  864. @$(COMMON_CONFIG_ENV) $< \
  865. --savedefconfig=$(if $(DEFCONFIG),$(DEFCONFIG),$(CONFIG_DIR)/defconfig) \
  866. $(CONFIG_CONFIG_IN)
  867. @$(SED) '/BR2_DEFCONFIG=/d' $(if $(DEFCONFIG),$(DEFCONFIG),$(CONFIG_DIR)/defconfig)
  868. .PHONY: defconfig savedefconfig update-defconfig
  869. ################################################################################
  870. #
  871. # Cleanup and misc junk
  872. #
  873. ################################################################################
  874. # staging and target directories do NOT list these as
  875. # dependencies anywhere else
  876. $(BUILD_DIR) $(BASE_TARGET_DIR) $(HOST_DIR) $(BINARIES_DIR) $(LEGAL_INFO_DIR) $(REDIST_SOURCES_DIR_TARGET) $(REDIST_SOURCES_DIR_HOST) $(PER_PACKAGE_DIR):
  877. @mkdir -p $@
  878. # outputmakefile generates a Makefile in the output directory, if using a
  879. # separate output directory. This allows convenient use of make in the
  880. # output directory.
  881. .PHONY: outputmakefile
  882. outputmakefile:
  883. ifeq ($(NEED_WRAPPER),y)
  884. $(Q)$(TOPDIR)/support/scripts/mkmakefile $(TOPDIR) $(O)
  885. endif
  886. # printvars prints all the variables currently defined in our
  887. # Makefiles. Alternatively, if a non-empty VARS variable is passed,
  888. # only the variables matching the make pattern passed in VARS are
  889. # displayed.
  890. .PHONY: printvars
  891. printvars:
  892. @:
  893. $(foreach V, \
  894. $(sort $(filter $(VARS),$(.VARIABLES))), \
  895. $(if $(filter-out environment% default automatic, \
  896. $(origin $V)), \
  897. $(if $(QUOTED_VARS),\
  898. $(info $V='$(subst ','\'',$(if $(RAW_VARS),$(value $V),$($V)))'), \
  899. $(info $V=$(if $(RAW_VARS),$(value $V),$($V))))))
  900. # ' Syntax colouring...
  901. .PHONY: clean
  902. clean:
  903. rm -rf $(BASE_TARGET_DIR) $(BINARIES_DIR) $(HOST_DIR) $(HOST_DIR_SYMLINK) \
  904. $(BUILD_DIR) $(BASE_DIR)/staging \
  905. $(LEGAL_INFO_DIR) $(GRAPHS_DIR) $(PER_PACKAGE_DIR)
  906. .PHONY: distclean
  907. distclean: clean
  908. ifeq ($(O),$(CURDIR)/output)
  909. rm -rf $(O)
  910. endif
  911. rm -rf $(TOPDIR)/dl $(BR2_CONFIG) $(CONFIG_DIR)/.config.old $(CONFIG_DIR)/..config.tmp \
  912. $(CONFIG_DIR)/.auto.deps $(BASE_DIR)/.br2-external.*
  913. .PHONY: help
  914. help:
  915. @echo 'Cleaning:'
  916. @echo ' clean - delete all files created by build'
  917. @echo ' distclean - delete all non-source files (including .config)'
  918. @echo
  919. @echo 'Build:'
  920. @echo ' all - make world'
  921. @echo ' toolchain - build toolchain'
  922. @echo ' sdk - build relocatable SDK'
  923. @echo
  924. @echo 'Configuration:'
  925. @echo ' menuconfig - interactive curses-based configurator'
  926. @echo ' nconfig - interactive ncurses-based configurator'
  927. @echo ' xconfig - interactive Qt-based configurator'
  928. @echo ' gconfig - interactive GTK-based configurator'
  929. @echo ' oldconfig - resolve any unresolved symbols in .config'
  930. @echo ' syncconfig - Same as oldconfig, but quietly, additionally update deps'
  931. @echo ' olddefconfig - Same as syncconfig but sets new symbols to their default value'
  932. @echo ' randconfig - New config with random answer to all options'
  933. @echo ' defconfig - New config with default answer to all options;'
  934. @echo ' BR2_DEFCONFIG, if set on the command line, is used as input'
  935. @echo ' savedefconfig - Save current config to BR2_DEFCONFIG (minimal config)'
  936. @echo ' update-defconfig - Same as savedefconfig'
  937. @echo ' allyesconfig - New config where all options are accepted with yes'
  938. @echo ' allnoconfig - New config where all options are answered with no'
  939. @echo ' alldefconfig - New config where all options are set to default'
  940. @echo ' randpackageconfig - New config with random answer to package options'
  941. @echo ' allyespackageconfig - New config where pkg options are accepted with yes'
  942. @echo ' allnopackageconfig - New config where package options are answered with no'
  943. @echo
  944. @echo 'Package-specific:'
  945. @echo ' <pkg> - Build and install <pkg> and all its dependencies'
  946. @echo ' <pkg>-source - Only download the source files for <pkg>'
  947. @echo ' <pkg>-extract - Extract <pkg> sources'
  948. @echo ' <pkg>-patch - Apply patches to <pkg>'
  949. @echo ' <pkg>-depends - Build <pkg>'\''s dependencies'
  950. @echo ' <pkg>-configure - Build <pkg> up to the configure step'
  951. @echo ' <pkg>-build - Build <pkg> up to the build step'
  952. @echo ' <pkg>-show-info - generate info about <pkg>, as a JSON blurb'
  953. @echo ' <pkg>-show-depends - List packages on which <pkg> depends'
  954. @echo ' <pkg>-show-rdepends - List packages which have <pkg> as a dependency'
  955. @echo ' <pkg>-show-recursive-depends'
  956. @echo ' - Recursively list packages on which <pkg> depends'
  957. @echo ' <pkg>-show-recursive-rdepends'
  958. @echo ' - Recursively list packages which have <pkg> as a dependency'
  959. @echo ' <pkg>-graph-depends - Generate a graph of <pkg>'\''s dependencies'
  960. @echo ' <pkg>-graph-rdepends - Generate a graph of <pkg>'\''s reverse dependencies'
  961. @echo ' <pkg>-dirclean - Remove <pkg> build directory'
  962. @echo ' <pkg>-reconfigure - Restart the build from the configure step'
  963. @echo ' <pkg>-rebuild - Restart the build from the build step'
  964. $(foreach p,$(HELP_PACKAGES), \
  965. @echo $(sep) \
  966. @echo '$($(p)_NAME):' $(sep) \
  967. $($(p)_HELP_CMDS)$(sep))
  968. @echo
  969. @echo 'Documentation:'
  970. @echo ' manual - build manual in all formats'
  971. @echo ' manual-html - build manual in HTML'
  972. @echo ' manual-split-html - build manual in split HTML'
  973. @echo ' manual-pdf - build manual in PDF'
  974. @echo ' manual-text - build manual in text'
  975. @echo ' manual-epub - build manual in ePub'
  976. @echo ' graph-build - generate graphs of the build times'
  977. @echo ' graph-depends - generate graph of the dependency tree'
  978. @echo ' graph-size - generate stats of the filesystem size'
  979. @echo ' list-defconfigs - list all defconfigs (pre-configured minimal systems)'
  980. @echo
  981. @echo 'Miscellaneous:'
  982. @echo ' source - download all sources needed for offline-build'
  983. @echo ' external-deps - list external packages used'
  984. @echo ' legal-info - generate info about license compliance'
  985. @echo ' show-info - generate info about packages, as a JSON blurb'
  986. @echo ' printvars - dump internal variables selected with VARS=...'
  987. @echo
  988. @echo ' make V=0|1 - 0 => quiet build (default), 1 => verbose build'
  989. @echo ' make O=dir - Locate all output files in "dir", including .config'
  990. @echo
  991. @echo 'For further details, see README, generate the Buildroot manual, or consult'
  992. @echo 'it on-line at http://buildroot.org/docs.html'
  993. @echo
  994. # List the defconfig files
  995. # $(1): base directory
  996. # $(2): br2-external name, empty for bundled
  997. define list-defconfigs
  998. @first=true; \
  999. for defconfig in $(1)/configs/*_defconfig; do \
  1000. [ -f "$${defconfig}" ] || continue; \
  1001. if $${first}; then \
  1002. if [ "$(2)" ]; then \
  1003. printf 'External configs in "$(call qstrip,$(2))":\n'; \
  1004. else \
  1005. printf "Built-in configs:\n"; \
  1006. fi; \
  1007. first=false; \
  1008. fi; \
  1009. defconfig="$${defconfig##*/}"; \
  1010. printf " %-35s - Build for %s\n" "$${defconfig}" "$${defconfig%_defconfig}"; \
  1011. done; \
  1012. $${first} || printf "\n"
  1013. endef
  1014. # We iterate over BR2_EXTERNAL_NAMES rather than BR2_EXTERNAL_DIRS,
  1015. # because we want to display the name of the br2-external tree.
  1016. .PHONY: list-defconfigs
  1017. list-defconfigs:
  1018. $(call list-defconfigs,$(TOPDIR))
  1019. $(foreach name,$(BR2_EXTERNAL_NAMES),\
  1020. $(call list-defconfigs,$(BR2_EXTERNAL_$(name)_PATH),\
  1021. $(BR2_EXTERNAL_$(name)_DESC))$(sep))
  1022. release: OUT = buildroot-$(BR2_VERSION)
  1023. # Create release tarballs. We need to fiddle a bit to add the generated
  1024. # documentation to the git output
  1025. release:
  1026. git archive --format=tar --prefix=$(OUT)/ HEAD > $(OUT).tar
  1027. $(MAKE) O=$(OUT) manual-html manual-text manual-pdf
  1028. $(MAKE) O=$(OUT) clean
  1029. tar rf $(OUT).tar $(OUT)
  1030. gzip -9 -c < $(OUT).tar > $(OUT).tar.gz
  1031. bzip2 -9 -c < $(OUT).tar > $(OUT).tar.bz2
  1032. rm -rf $(OUT) $(OUT).tar
  1033. print-version:
  1034. @echo $(BR2_VERSION_FULL)
  1035. check-package:
  1036. find $(TOPDIR) -type f \( -name '*.mk' -o -name '*.hash' -o -name 'Config.*' \) \
  1037. -exec ./utils/check-package {} +
  1038. .PHONY: .gitlab-ci.yml
  1039. .gitlab-ci.yml: .gitlab-ci.yml.in
  1040. ./support/scripts/generate-gitlab-ci-yml $< > $@
  1041. include docs/manual/manual.mk
  1042. -include $(foreach dir,$(BR2_EXTERNAL_DIRS),$(sort $(wildcard $(dir)/docs/*/*.mk)))
  1043. .PHONY: $(noconfig_targets)
  1044. endif #umask / $(CURDIR) / $(O)