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 := 2021.11
  80. # Actual time the release is cut (for reproducible builds)
  81. BR2_VERSION_EPOCH = 1638734000
  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. BR2_LOCALVERSION := $(shell $(TOPDIR)/support/scripts/setlocalversion)
  97. ifeq ($(BR2_LOCALVERSION),)
  98. export BR2_VERSION_FULL := $(BR2_VERSION)
  99. else
  100. export BR2_VERSION_FULL := $(BR2_LOCALVERSION)
  101. endif
  102. # List of targets and target patterns for which .config doesn't need to be read in
  103. noconfig_targets := menuconfig nconfig gconfig xconfig config oldconfig randconfig \
  104. defconfig %_defconfig allyesconfig allnoconfig alldefconfig syncconfig release \
  105. randpackageconfig allyespackageconfig allnopackageconfig \
  106. print-version olddefconfig distclean manual manual-% check-package check-flake8
  107. # Some global targets do not trigger a build, but are used to collect
  108. # metadata, or do various checks. When such targets are triggered,
  109. # some packages should not do their configuration sanity
  110. # checks. Provide them a BR_BUILDING variable set to 'y' when we're
  111. # actually building and they should do their sanity checks.
  112. #
  113. # We're building in two situations: when MAKECMDGOALS is empty
  114. # (default target is to build), or when MAKECMDGOALS contains
  115. # something else than one of the nobuild_targets.
  116. nobuild_targets := source %-source \
  117. legal-info %-legal-info external-deps _external-deps \
  118. clean distclean help show-targets graph-depends \
  119. %-graph-depends %-show-depends %-show-version \
  120. graph-build graph-size list-defconfigs \
  121. savedefconfig update-defconfig printvars
  122. ifeq ($(MAKECMDGOALS),)
  123. BR_BUILDING = y
  124. else ifneq ($(filter-out $(nobuild_targets),$(MAKECMDGOALS)),)
  125. BR_BUILDING = y
  126. endif
  127. # We call make recursively to build packages. The command-line overrides that
  128. # are passed to Buildroot don't apply to those package build systems. In
  129. # particular, we don't want to pass down the O=<dir> option for out-of-tree
  130. # builds, because the value specified on the command line will not be correct
  131. # for packages.
  132. MAKEOVERRIDES :=
  133. # Include some helper macros and variables
  134. include support/misc/utils.mk
  135. # Set variables related to in-tree or out-of-tree build.
  136. # Here, both $(O) and $(CURDIR) are absolute canonical paths.
  137. ifeq ($(O),$(CURDIR)/output)
  138. CONFIG_DIR := $(CURDIR)
  139. NEED_WRAPPER =
  140. else
  141. CONFIG_DIR := $(O)
  142. NEED_WRAPPER = y
  143. endif
  144. # bash prints the name of the directory on 'cd <dir>' if CDPATH is
  145. # set, so unset it here to not cause problems. Notice that the export
  146. # line doesn't affect the environment of $(shell ..) calls.
  147. export CDPATH :=
  148. BASE_DIR := $(CANONICAL_O)
  149. $(if $(BASE_DIR),, $(error output directory "$(O)" does not exist))
  150. # Handling of BR2_EXTERNAL.
  151. #
  152. # The value of BR2_EXTERNAL is stored in .br-external in the output directory.
  153. # The location of the external.mk makefile fragments is computed in that file.
  154. # On subsequent invocations of make, this file is read in. BR2_EXTERNAL can
  155. # still be overridden on the command line, therefore the file is re-created
  156. # every time make is run.
  157. BR2_EXTERNAL_FILE = $(BASE_DIR)/.br2-external.mk
  158. -include $(BR2_EXTERNAL_FILE)
  159. $(shell support/scripts/br2-external -d '$(BASE_DIR)' $(BR2_EXTERNAL))
  160. BR2_EXTERNAL_ERROR =
  161. include $(BR2_EXTERNAL_FILE)
  162. ifneq ($(BR2_EXTERNAL_ERROR),)
  163. $(error $(BR2_EXTERNAL_ERROR))
  164. endif
  165. # Workaround bug in make-4.3: https://savannah.gnu.org/bugs/?57676
  166. $(BASE_DIR)/.br2-external.mk:;
  167. # To make sure that the environment variable overrides the .config option,
  168. # set this before including .config.
  169. ifneq ($(BR2_DL_DIR),)
  170. DL_DIR := $(BR2_DL_DIR)
  171. endif
  172. ifneq ($(BR2_CCACHE_DIR),)
  173. BR_CACHE_DIR := $(BR2_CCACHE_DIR)
  174. endif
  175. # Need that early, before we scan packages
  176. # Avoids doing the $(or...) everytime
  177. BR_GRAPH_OUT := $(or $(BR2_GRAPH_OUT),pdf)
  178. BUILD_DIR := $(BASE_DIR)/build
  179. BINARIES_DIR := $(BASE_DIR)/images
  180. BASE_TARGET_DIR := $(BASE_DIR)/target
  181. PER_PACKAGE_DIR := $(BASE_DIR)/per-package
  182. # initial definition so that 'make clean' works for most users, even without
  183. # .config. HOST_DIR will be overwritten later when .config is included.
  184. HOST_DIR := $(BASE_DIR)/host
  185. GRAPHS_DIR := $(BASE_DIR)/graphs
  186. LEGAL_INFO_DIR = $(BASE_DIR)/legal-info
  187. REDIST_SOURCES_DIR_TARGET = $(LEGAL_INFO_DIR)/sources
  188. REDIST_SOURCES_DIR_HOST = $(LEGAL_INFO_DIR)/host-sources
  189. LICENSE_FILES_DIR_TARGET = $(LEGAL_INFO_DIR)/licenses
  190. LICENSE_FILES_DIR_HOST = $(LEGAL_INFO_DIR)/host-licenses
  191. LEGAL_MANIFEST_CSV_TARGET = $(LEGAL_INFO_DIR)/manifest.csv
  192. LEGAL_MANIFEST_CSV_HOST = $(LEGAL_INFO_DIR)/host-manifest.csv
  193. LEGAL_WARNINGS = $(LEGAL_INFO_DIR)/.warnings
  194. LEGAL_REPORT = $(LEGAL_INFO_DIR)/README
  195. CPE_UPDATES_DIR = $(BASE_DIR)/cpe-updates
  196. BR2_CONFIG = $(CONFIG_DIR)/.config
  197. # Pull in the user's configuration file
  198. ifeq ($(filter $(noconfig_targets),$(MAKECMDGOALS)),)
  199. -include $(BR2_CONFIG)
  200. endif
  201. ifeq ($(BR2_PER_PACKAGE_DIRECTORIES),)
  202. # Disable top-level parallel build if per-package directories is not
  203. # used. Indeed, per-package directories is necessary to guarantee
  204. # determinism and reproducibility with top-level parallel build.
  205. .NOTPARALLEL:
  206. endif
  207. # timezone and locale may affect build output
  208. ifeq ($(BR2_REPRODUCIBLE),y)
  209. export TZ = UTC
  210. export LANG = C
  211. export LC_ALL = C
  212. endif
  213. # To put more focus on warnings, be less verbose as default
  214. # Use 'make V=1' to see the full commands
  215. ifeq ("$(origin V)", "command line")
  216. KBUILD_VERBOSE = $(V)
  217. endif
  218. ifndef KBUILD_VERBOSE
  219. KBUILD_VERBOSE = 0
  220. endif
  221. ifeq ($(KBUILD_VERBOSE),1)
  222. Q =
  223. ifndef VERBOSE
  224. VERBOSE = 1
  225. endif
  226. export VERBOSE
  227. else
  228. Q = @
  229. endif
  230. # kconfig uses CONFIG_SHELL
  231. CONFIG_SHELL := $(SHELL)
  232. export SHELL CONFIG_SHELL Q KBUILD_VERBOSE
  233. ifndef HOSTAR
  234. HOSTAR := ar
  235. endif
  236. ifndef HOSTAS
  237. HOSTAS := as
  238. endif
  239. ifndef HOSTCC
  240. HOSTCC := gcc
  241. HOSTCC := $(shell which $(HOSTCC) || type -p $(HOSTCC) || echo gcc)
  242. endif
  243. HOSTCC_NOCCACHE := $(HOSTCC)
  244. ifndef HOSTCXX
  245. HOSTCXX := g++
  246. HOSTCXX := $(shell which $(HOSTCXX) || type -p $(HOSTCXX) || echo g++)
  247. endif
  248. HOSTCXX_NOCCACHE := $(HOSTCXX)
  249. ifndef HOSTCPP
  250. HOSTCPP := cpp
  251. endif
  252. ifndef HOSTLD
  253. HOSTLD := ld
  254. endif
  255. ifndef HOSTLN
  256. HOSTLN := ln
  257. endif
  258. ifndef HOSTNM
  259. HOSTNM := nm
  260. endif
  261. ifndef HOSTOBJCOPY
  262. HOSTOBJCOPY := objcopy
  263. endif
  264. ifndef HOSTRANLIB
  265. HOSTRANLIB := ranlib
  266. endif
  267. HOSTAR := $(shell which $(HOSTAR) || type -p $(HOSTAR) || echo ar)
  268. HOSTAS := $(shell which $(HOSTAS) || type -p $(HOSTAS) || echo as)
  269. HOSTCPP := $(shell which $(HOSTCPP) || type -p $(HOSTCPP) || echo cpp)
  270. HOSTLD := $(shell which $(HOSTLD) || type -p $(HOSTLD) || echo ld)
  271. HOSTLN := $(shell which $(HOSTLN) || type -p $(HOSTLN) || echo ln)
  272. HOSTNM := $(shell which $(HOSTNM) || type -p $(HOSTNM) || echo nm)
  273. HOSTOBJCOPY := $(shell which $(HOSTOBJCOPY) || type -p $(HOSTOBJCOPY) || echo objcopy)
  274. HOSTRANLIB := $(shell which $(HOSTRANLIB) || type -p $(HOSTRANLIB) || echo ranlib)
  275. SED := $(shell which sed || type -p sed) -i -e
  276. export HOSTAR HOSTAS HOSTCC HOSTCXX HOSTLD
  277. export HOSTCC_NOCCACHE HOSTCXX_NOCCACHE
  278. # Determine the userland we are running on.
  279. #
  280. # Note that, despite its name, we are not interested in the actual
  281. # architecture name. This is mostly used to determine whether some
  282. # of the binary tools (e.g. pre-built external toolchains) can run
  283. # on the current host. So we need to know if the userland we're
  284. # running on can actually run those toolchains.
  285. #
  286. # For example, a 64-bit prebuilt toolchain will not run on a 64-bit
  287. # kernel if the userland is 32-bit (e.g. in a chroot for example).
  288. #
  289. # So, we extract the first part of the tuple the host gcc was
  290. # configured to generate code for; we assume this is our userland.
  291. #
  292. export HOSTARCH := $(shell LC_ALL=C $(HOSTCC_NOCCACHE) -v 2>&1 | \
  293. sed -e '/^Target: \([^-]*\).*/!d' \
  294. -e 's//\1/' \
  295. -e 's/i.86/x86/' \
  296. -e 's/sun4u/sparc64/' \
  297. -e 's/arm.*/arm/' \
  298. -e 's/sa110/arm/' \
  299. -e 's/ppc64/powerpc64/' \
  300. -e 's/ppc/powerpc/' \
  301. -e 's/macppc/powerpc/' \
  302. -e 's/sh.*/sh/' )
  303. # When adding a new host gcc version in Config.in,
  304. # update the HOSTCC_MAX_VERSION variable:
  305. HOSTCC_MAX_VERSION := 9
  306. HOSTCC_VERSION := $(shell V=$$($(HOSTCC_NOCCACHE) --version | \
  307. sed -n -r 's/^.* ([0-9]*)\.([0-9]*)\.([0-9]*)[ ]*.*/\1 \2/p'); \
  308. [ "$${V%% *}" -le $(HOSTCC_MAX_VERSION) ] || V=$(HOSTCC_MAX_VERSION); \
  309. printf "%s" "$${V}")
  310. # For gcc >= 5.x, we only need the major version.
  311. ifneq ($(firstword $(HOSTCC_VERSION)),4)
  312. HOSTCC_VERSION := $(firstword $(HOSTCC_VERSION))
  313. endif
  314. ifeq ($(BR2_NEEDS_HOST_UTF8_LOCALE),y)
  315. # First, we try to use the user's configured locale (as that's the
  316. # language they'd expect messages to be displayed), then we favour
  317. # a non language-specific locale like C.UTF-8 if one is available,
  318. # so we sort with the C locale to get it at the top.
  319. # This is guaranteed to not be empty, because of the check in
  320. # support/dependencies/dependencies.sh
  321. HOST_UTF8_LOCALE := $(shell \
  322. ( echo $${LC_ALL:-$${LC_MESSAGES:-$${LANG}}}; \
  323. locale -a 2>/dev/null | LC_ALL=C sort \
  324. ) \
  325. | grep -i -E 'utf-?8$$' \
  326. | head -n 1)
  327. HOST_UTF8_LOCALE_ENV := LC_ALL=$(HOST_UTF8_LOCALE)
  328. endif
  329. # Make sure pkg-config doesn't look outside the buildroot tree
  330. HOST_PKG_CONFIG_PATH := $(PKG_CONFIG_PATH)
  331. unexport PKG_CONFIG_PATH
  332. unexport PKG_CONFIG_SYSROOT_DIR
  333. unexport PKG_CONFIG_LIBDIR
  334. # Having DESTDIR set in the environment confuses the installation
  335. # steps of some packages.
  336. unexport DESTDIR
  337. # Causes breakage with packages that needs host-ruby
  338. unexport RUBYOPT
  339. include package/pkg-utils.mk
  340. include package/doc-asciidoc.mk
  341. ifeq ($(BR2_HAVE_DOT_CONFIG),y)
  342. ################################################################################
  343. #
  344. # Hide troublesome environment variables from sub processes
  345. #
  346. ################################################################################
  347. unexport CROSS_COMPILE
  348. unexport ARCH
  349. unexport CC
  350. unexport LD
  351. unexport AR
  352. unexport CXX
  353. unexport CPP
  354. unexport RANLIB
  355. unexport CFLAGS
  356. unexport CXXFLAGS
  357. unexport GREP_OPTIONS
  358. unexport TAR_OPTIONS
  359. unexport CONFIG_SITE
  360. unexport QMAKESPEC
  361. unexport TERMINFO
  362. unexport MACHINE
  363. unexport O
  364. unexport GCC_COLORS
  365. unexport PLATFORM
  366. unexport OS
  367. GNU_HOST_NAME := $(shell support/gnuconfig/config.guess)
  368. PACKAGES :=
  369. PACKAGES_ALL :=
  370. # silent mode requested?
  371. QUIET := $(if $(findstring s,$(filter-out --%,$(MAKEFLAGS))),-q)
  372. # Strip off the annoying quoting
  373. ARCH := $(call qstrip,$(BR2_ARCH))
  374. KERNEL_ARCH := $(shell echo "$(ARCH)" | sed -e "s/-.*//" \
  375. -e s/i.86/i386/ -e s/sun4u/sparc64/ \
  376. -e s/arcle/arc/ \
  377. -e s/arceb/arc/ \
  378. -e s/arm.*/arm/ -e s/sa110/arm/ \
  379. -e s/aarch64.*/arm64/ \
  380. -e s/nds32.*/nds32/ \
  381. -e s/or1k/openrisc/ \
  382. -e s/parisc64/parisc/ \
  383. -e s/powerpc64.*/powerpc/ \
  384. -e s/ppc.*/powerpc/ -e s/mips.*/mips/ \
  385. -e s/riscv.*/riscv/ \
  386. -e s/sh.*/sh/ \
  387. -e s/s390x/s390/ \
  388. -e s/microblazeel/microblaze/)
  389. ZCAT := $(call qstrip,$(BR2_ZCAT))
  390. BZCAT := $(call qstrip,$(BR2_BZCAT))
  391. XZCAT := $(call qstrip,$(BR2_XZCAT))
  392. LZCAT := $(call qstrip,$(BR2_LZCAT))
  393. TAR_OPTIONS = $(call qstrip,$(BR2_TAR_OPTIONS)) -xf
  394. ifeq ($(BR2_PER_PACKAGE_DIRECTORIES),y)
  395. HOST_DIR = $(if $(PKG),$(PER_PACKAGE_DIR)/$($(PKG)_NAME)/host,$(call qstrip,$(BR2_HOST_DIR)))
  396. TARGET_DIR = $(if $(ROOTFS),$(ROOTFS_$(ROOTFS)_TARGET_DIR),$(if $(PKG),$(PER_PACKAGE_DIR)/$($(PKG)_NAME)/target,$(BASE_TARGET_DIR)))
  397. else
  398. HOST_DIR := $(call qstrip,$(BR2_HOST_DIR))
  399. TARGET_DIR = $(if $(ROOTFS),$(ROOTFS_$(ROOTFS)_TARGET_DIR),$(BASE_TARGET_DIR))
  400. endif
  401. ifneq ($(HOST_DIR),$(BASE_DIR)/host)
  402. HOST_DIR_SYMLINK = $(BASE_DIR)/host
  403. $(HOST_DIR_SYMLINK): | $(BASE_DIR)
  404. ln -snf $(HOST_DIR) $(HOST_DIR_SYMLINK)
  405. endif
  406. STAGING_DIR_SYMLINK = $(BASE_DIR)/staging
  407. $(STAGING_DIR_SYMLINK): | $(BASE_DIR)
  408. ln -snf $(STAGING_DIR) $(STAGING_DIR_SYMLINK)
  409. # Quotes are needed for spaces and all in the original PATH content.
  410. BR_PATH = "$(HOST_DIR)/bin:$(HOST_DIR)/sbin:$(PATH)"
  411. # Location of a file giving a big fat warning that output/target
  412. # should not be used as the root filesystem.
  413. TARGET_DIR_WARNING_FILE = $(TARGET_DIR)/THIS_IS_NOT_YOUR_ROOT_FILESYSTEM
  414. ifeq ($(BR2_CCACHE),y)
  415. CCACHE = $(HOST_DIR)/bin/ccache
  416. BR_CACHE_DIR ?= $(call qstrip,$(BR2_CCACHE_DIR))
  417. export BR_CACHE_DIR
  418. HOSTCC = $(CCACHE) $(HOSTCC_NOCCACHE)
  419. HOSTCXX = $(CCACHE) $(HOSTCXX_NOCCACHE)
  420. else
  421. export BR_NO_CCACHE
  422. endif
  423. # Scripts in support/ or post-build scripts may need to reference
  424. # these locations, so export them so it is easier to use
  425. export BR2_CONFIG
  426. export BR2_REPRODUCIBLE
  427. export TARGET_DIR
  428. export STAGING_DIR
  429. export HOST_DIR
  430. export BINARIES_DIR
  431. export BASE_DIR
  432. ################################################################################
  433. #
  434. # You should probably leave this stuff alone unless you know
  435. # what you are doing.
  436. #
  437. ################################################################################
  438. all: world
  439. # Include legacy before the other things, because package .mk files
  440. # may rely on it.
  441. include Makefile.legacy
  442. include system/system.mk
  443. include package/Makefile.in
  444. # arch/arch.mk must be after package/Makefile.in because it may need to
  445. # complement variables defined therein, like BR_NO_CHECK_HASH_FOR.
  446. include arch/arch.mk
  447. include support/dependencies/dependencies.mk
  448. include $(sort $(wildcard toolchain/*.mk))
  449. include $(sort $(wildcard toolchain/*/*.mk))
  450. ifeq ($(BR2_REPRODUCIBLE),y)
  451. # If SOURCE_DATE_EPOCH has not been set then use the commit date, or the last
  452. # release date if the source tree is not within a Git repository.
  453. # See: https://reproducible-builds.org/specs/source-date-epoch/
  454. BR2_VERSION_GIT_EPOCH := $(shell $(GIT) log -1 --format=%at 2> /dev/null)
  455. export SOURCE_DATE_EPOCH ?= $(or $(BR2_VERSION_GIT_EPOCH),$(BR2_VERSION_EPOCH))
  456. endif
  457. # Include the package override file if one has been provided in the
  458. # configuration.
  459. PACKAGE_OVERRIDE_FILE = $(call qstrip,$(BR2_PACKAGE_OVERRIDE_FILE))
  460. ifneq ($(PACKAGE_OVERRIDE_FILE),)
  461. -include $(PACKAGE_OVERRIDE_FILE)
  462. endif
  463. include $(sort $(wildcard package/*/*.mk))
  464. include boot/common.mk
  465. include linux/linux.mk
  466. include fs/common.mk
  467. # If using a br2-external tree, the BR2_EXTERNAL_$(NAME)_PATH variables
  468. # are also present in the .config file. Since .config is included after
  469. # we defined them in the Makefile, the values for those variables are
  470. # quoted. We just include the generated Makefile fragment .br2-external.mk
  471. # a third time, which will set those variables to the un-quoted values.
  472. include $(BR2_EXTERNAL_FILE)
  473. # Nothing to include if no BR2_EXTERNAL tree in use
  474. include $(BR2_EXTERNAL_MKS)
  475. # Now we are sure we have all the packages scanned and defined. We now
  476. # check for each package in the list of enabled packages, that all its
  477. # dependencies are indeed enabled.
  478. #
  479. # Only trigger the check for default builds. If the user forces building
  480. # a package, even if not enabled in the configuration, we want to accept
  481. # it. However; we also want to be able to force checking the dependencies
  482. # if the user so desires. Forcing a dependency check is useful in the case
  483. # of test-pkg, as we want to make sure during testing, that a package has
  484. # all the dependencies selected in the config file.
  485. #
  486. ifeq ($(MAKECMDGOALS),)
  487. BR_FORCE_CHECK_DEPENDENCIES = YES
  488. endif
  489. ifeq ($(BR_FORCE_CHECK_DEPENDENCIES),YES)
  490. define CHECK_ONE_DEPENDENCY
  491. ifeq ($$($(2)_TYPE),target)
  492. ifeq ($$($(2)_IS_VIRTUAL),)
  493. ifneq ($$($$($(2)_KCONFIG_VAR)),y)
  494. $$(error $$($(2)_NAME) is in the dependency chain of $$($(1)_NAME) that \
  495. has added it to its _DEPENDENCIES variable without selecting it or \
  496. depending on it from Config.in)
  497. endif
  498. endif
  499. endif
  500. endef
  501. $(foreach pkg,$(call UPPERCASE,$(PACKAGES)),\
  502. $(foreach dep,$(call UPPERCASE,$($(pkg)_FINAL_ALL_DEPENDENCIES)),\
  503. $(eval $(call CHECK_ONE_DEPENDENCY,$(pkg),$(dep))$(sep))))
  504. endif
  505. $(BUILD_DIR)/buildroot-config/auto.conf: $(BR2_CONFIG)
  506. $(MAKE1) $(EXTRAMAKEARGS) HOSTCC="$(HOSTCC_NOCCACHE)" HOSTCXX="$(HOSTCXX_NOCCACHE)" syncconfig
  507. .PHONY: prepare
  508. prepare: $(BUILD_DIR)/buildroot-config/auto.conf
  509. .PHONY: world
  510. world: target-post-image
  511. .PHONY: prepare-sdk
  512. prepare-sdk: world
  513. @$(call MESSAGE,"Rendering the SDK relocatable")
  514. PER_PACKAGE_DIR=$(PER_PACKAGE_DIR) $(TOPDIR)/support/scripts/fix-rpath host
  515. PER_PACKAGE_DIR=$(PER_PACKAGE_DIR) $(TOPDIR)/support/scripts/fix-rpath staging
  516. $(INSTALL) -m 755 $(TOPDIR)/support/misc/relocate-sdk.sh $(HOST_DIR)/relocate-sdk.sh
  517. mkdir -p $(HOST_DIR)/share/buildroot
  518. echo $(HOST_DIR) > $(HOST_DIR)/share/buildroot/sdk-location
  519. BR2_SDK_PREFIX ?= $(GNU_TARGET_NAME)_sdk-buildroot
  520. .PHONY: sdk
  521. sdk: prepare-sdk $(BR2_TAR_HOST_DEPENDENCY)
  522. @$(call MESSAGE,"Generating SDK tarball")
  523. $(if $(BR2_SDK_PREFIX),,$(error BR2_SDK_PREFIX can not be empty))
  524. $(Q)mkdir -p $(BINARIES_DIR)
  525. $(TAR) czf "$(BINARIES_DIR)/$(BR2_SDK_PREFIX).tar.gz" \
  526. --owner=0 --group=0 --numeric-owner \
  527. --transform='s#^$(patsubst /%,%,$(HOST_DIR))#$(BR2_SDK_PREFIX)#' \
  528. -C / $(patsubst /%,%,$(HOST_DIR))
  529. RSYNC_VCS_EXCLUSIONS = \
  530. --exclude .svn --exclude .git --exclude .hg --exclude .bzr \
  531. --exclude CVS
  532. # When stripping, obey to BR2_STRIP_EXCLUDE_DIRS and
  533. # BR2_STRIP_EXCLUDE_FILES
  534. STRIP_FIND_COMMON_CMD = \
  535. find $(TARGET_DIR) \
  536. $(if $(call qstrip,$(BR2_STRIP_EXCLUDE_DIRS)), \
  537. \( $(call finddirclauses,$(TARGET_DIR),$(call qstrip,$(BR2_STRIP_EXCLUDE_DIRS))) \) \
  538. -prune -o \
  539. ) \
  540. $(if $(call qstrip,$(BR2_STRIP_EXCLUDE_FILES)), \
  541. -not \( $(call findfileclauses,$(call qstrip,$(BR2_STRIP_EXCLUDE_FILES))) \) )
  542. # Regular stripping for everything, except libpthread, ld-*.so and
  543. # kernel modules:
  544. # - libpthread.so: a non-stripped libpthread shared library is needed for
  545. # proper debugging of pthread programs using gdb.
  546. # - ld.so: a non-stripped dynamic linker library is needed for valgrind
  547. # - kernel modules (*.ko): do not function properly when stripped like normal
  548. # applications and libraries. Normally kernel modules are already excluded
  549. # by the executable permission check, so the explicit exclusion is only
  550. # done for kernel modules with incorrect permissions.
  551. STRIP_FIND_CMD = \
  552. $(STRIP_FIND_COMMON_CMD) \
  553. -type f \( -perm /111 -o -name '*.so*' \) \
  554. -not \( $(call findfileclauses,libpthread*.so* ld-*.so* *.ko) \) \
  555. -print0
  556. # Special stripping (only debugging symbols) for libpthread and ld-*.so.
  557. STRIP_FIND_SPECIAL_LIBS_CMD = \
  558. $(STRIP_FIND_COMMON_CMD) \
  559. \( -name 'ld-*.so*' -o -name 'libpthread*.so*' \) \
  560. -print0
  561. ifeq ($(BR2_ECLIPSE_REGISTER),y)
  562. define TOOLCHAIN_ECLIPSE_REGISTER
  563. ./support/scripts/eclipse-register-toolchain `readlink -f $(O)` \
  564. $(notdir $(TARGET_CROSS)) $(BR2_ARCH)
  565. endef
  566. TARGET_FINALIZE_HOOKS += TOOLCHAIN_ECLIPSE_REGISTER
  567. endif
  568. # Generate locale data.
  569. ifeq ($(BR2_TOOLCHAIN_USES_GLIBC),y)
  570. GLIBC_GENERATE_LOCALES = $(call qstrip,$(BR2_GENERATE_LOCALE))
  571. ifneq ($(GLIBC_GENERATE_LOCALES),)
  572. PACKAGES += host-localedef
  573. define GENERATE_GLIBC_LOCALES
  574. $(MAKE) -f support/misc/gen-glibc-locales.mk \
  575. ENDIAN=$(call LOWERCASE,$(BR2_ENDIAN)) \
  576. LOCALES="$(GLIBC_GENERATE_LOCALES)" \
  577. Q=$(Q)
  578. endef
  579. TARGET_FINALIZE_HOOKS += GENERATE_GLIBC_LOCALES
  580. endif
  581. endif
  582. ifeq ($(BR2_ENABLE_LOCALE_PURGE),y)
  583. LOCALE_WHITELIST = $(BUILD_DIR)/locales.nopurge
  584. LOCALE_NOPURGE = $(call qstrip,$(BR2_ENABLE_LOCALE_WHITELIST))
  585. # This piece of junk does the following:
  586. # First collect the whitelist in a file.
  587. # Then go over all the locale dirs and for each subdir, check if it exists
  588. # in the whitelist file. If it doesn't, kill it.
  589. # Finally, specifically for X11, regenerate locale.dir from the whitelist.
  590. define PURGE_LOCALES
  591. printf '%s\n' $(LOCALE_NOPURGE) locale-archive > $(LOCALE_WHITELIST)
  592. for dir in $(addprefix $(TARGET_DIR),/usr/share/locale /usr/share/X11/locale /usr/lib/locale); \
  593. do \
  594. if [ ! -d $$dir ]; then continue; fi; \
  595. for langdir in $$dir/*; \
  596. do \
  597. if [ -e "$${langdir}" ]; \
  598. then \
  599. grep -qx "$${langdir##*/}" $(LOCALE_WHITELIST) || rm -rf $$langdir; \
  600. fi \
  601. done; \
  602. done
  603. if [ -d $(TARGET_DIR)/usr/share/X11/locale ]; \
  604. then \
  605. for lang in $(LOCALE_NOPURGE); \
  606. do \
  607. if [ -f $(TARGET_DIR)/usr/share/X11/locale/$$lang/XLC_LOCALE ]; \
  608. then \
  609. echo "$$lang/XLC_LOCALE: $$lang"; \
  610. fi \
  611. done > $(TARGET_DIR)/usr/share/X11/locale/locale.dir; \
  612. fi
  613. endef
  614. TARGET_FINALIZE_HOOKS += PURGE_LOCALES
  615. endif
  616. $(TARGETS_ROOTFS): target-finalize
  617. # Avoid the rootfs name leaking down the dependency chain
  618. target-finalize: ROOTFS=
  619. TARGET_DIR_FILES_LISTS = $(sort $(wildcard $(BUILD_DIR)/*/.files-list.txt))
  620. HOST_DIR_FILES_LISTS = $(sort $(wildcard $(BUILD_DIR)/*/.files-list-host.txt))
  621. STAGING_DIR_FILES_LISTS = $(sort $(wildcard $(BUILD_DIR)/*/.files-list-staging.txt))
  622. .PHONY: host-finalize
  623. host-finalize: $(PACKAGES) $(HOST_DIR) $(HOST_DIR_SYMLINK)
  624. @$(call MESSAGE,"Finalizing host directory")
  625. $(call per-package-rsync,$(sort $(PACKAGES)),host,$(HOST_DIR))
  626. .PHONY: staging-finalize
  627. staging-finalize: $(STAGING_DIR_SYMLINK)
  628. .PHONY: target-finalize
  629. target-finalize: $(PACKAGES) $(TARGET_DIR) host-finalize
  630. @$(call MESSAGE,"Finalizing target directory")
  631. $(call per-package-rsync,$(sort $(PACKAGES)),target,$(TARGET_DIR))
  632. $(foreach hook,$(TARGET_FINALIZE_HOOKS),$($(hook))$(sep))
  633. rm -rf $(TARGET_DIR)/usr/include $(TARGET_DIR)/usr/share/aclocal \
  634. $(TARGET_DIR)/usr/lib/pkgconfig $(TARGET_DIR)/usr/share/pkgconfig \
  635. $(TARGET_DIR)/usr/lib/cmake $(TARGET_DIR)/usr/share/cmake \
  636. $(TARGET_DIR)/usr/doc
  637. find $(TARGET_DIR)/usr/{lib,share}/ -name '*.cmake' -print0 | xargs -0 rm -f
  638. find $(TARGET_DIR)/lib/ $(TARGET_DIR)/usr/lib/ $(TARGET_DIR)/usr/libexec/ \
  639. \( -name '*.a' -o -name '*.la' -o -name '*.prl' \) -print0 | xargs -0 rm -f
  640. ifneq ($(BR2_PACKAGE_GDB),y)
  641. rm -rf $(TARGET_DIR)/usr/share/gdb
  642. endif
  643. ifneq ($(BR2_PACKAGE_BASH),y)
  644. rm -rf $(TARGET_DIR)/usr/share/bash-completion
  645. rm -rf $(TARGET_DIR)/etc/bash_completion.d
  646. endif
  647. ifneq ($(BR2_PACKAGE_ZSH),y)
  648. rm -rf $(TARGET_DIR)/usr/share/zsh
  649. endif
  650. rm -rf $(TARGET_DIR)/usr/man $(TARGET_DIR)/usr/share/man
  651. rm -rf $(TARGET_DIR)/usr/info $(TARGET_DIR)/usr/share/info
  652. rm -rf $(TARGET_DIR)/usr/doc $(TARGET_DIR)/usr/share/doc
  653. rm -rf $(TARGET_DIR)/usr/share/gtk-doc
  654. rmdir $(TARGET_DIR)/usr/share 2>/dev/null || true
  655. ifneq ($(BR2_ENABLE_DEBUG):$(BR2_STRIP_strip),y:)
  656. rm -rf $(TARGET_DIR)/lib/debug $(TARGET_DIR)/usr/lib/debug
  657. endif
  658. $(STRIP_FIND_CMD) | xargs -0 $(STRIPCMD) 2>/dev/null || true
  659. $(STRIP_FIND_SPECIAL_LIBS_CMD) | xargs -0 -r $(STRIPCMD) $(STRIP_STRIP_DEBUG) 2>/dev/null || true
  660. test -f $(TARGET_DIR)/etc/ld.so.conf && \
  661. { echo "ERROR: we shouldn't have a /etc/ld.so.conf file"; exit 1; } || true
  662. test -d $(TARGET_DIR)/etc/ld.so.conf.d && \
  663. { echo "ERROR: we shouldn't have a /etc/ld.so.conf.d directory"; exit 1; } || true
  664. mkdir -p $(TARGET_DIR)/etc
  665. ( \
  666. echo "NAME=Buildroot"; \
  667. echo "VERSION=$(BR2_VERSION_FULL)"; \
  668. echo "ID=buildroot"; \
  669. echo "VERSION_ID=$(BR2_VERSION)"; \
  670. echo "PRETTY_NAME=\"Buildroot $(BR2_VERSION)\"" \
  671. ) > $(TARGET_DIR)/usr/lib/os-release
  672. ln -sf ../usr/lib/os-release $(TARGET_DIR)/etc
  673. @$(call MESSAGE,"Sanitizing RPATH in target tree")
  674. PER_PACKAGE_DIR=$(PER_PACKAGE_DIR) $(TOPDIR)/support/scripts/fix-rpath target
  675. # For a merged /usr, ensure that /lib, /bin and /sbin and their /usr
  676. # counterparts are appropriately setup as symlinks ones to the others.
  677. ifeq ($(BR2_ROOTFS_MERGED_USR),y)
  678. $(foreach d, $(call qstrip,$(BR2_ROOTFS_OVERLAY)), \
  679. @$(call MESSAGE,"Sanity check in overlay $(d)")$(sep) \
  680. $(Q)not_merged_dirs="$$(support/scripts/check-merged-usr.sh $(d))"; \
  681. test -n "$$not_merged_dirs" && { \
  682. echo "ERROR: The overlay in $(d) is not" \
  683. "using a merged /usr for the following directories:" \
  684. $$not_merged_dirs; \
  685. exit 1; \
  686. } || true$(sep))
  687. endif # merged /usr
  688. $(foreach d, $(call qstrip,$(BR2_ROOTFS_OVERLAY)), \
  689. @$(call MESSAGE,"Copying overlay $(d)")$(sep) \
  690. $(Q)$(call SYSTEM_RSYNC,$(d),$(TARGET_DIR))$(sep))
  691. $(Q)$(if $(TARGET_DIR_FILES_LISTS), \
  692. cat $(TARGET_DIR_FILES_LISTS)) > $(BUILD_DIR)/packages-file-list.txt
  693. $(Q)$(if $(HOST_DIR_FILES_LISTS), \
  694. cat $(HOST_DIR_FILES_LISTS)) > $(BUILD_DIR)/packages-file-list-host.txt
  695. $(Q)$(if $(STAGING_DIR_FILES_LISTS), \
  696. cat $(STAGING_DIR_FILES_LISTS)) > $(BUILD_DIR)/packages-file-list-staging.txt
  697. $(foreach s, $(call qstrip,$(BR2_ROOTFS_POST_BUILD_SCRIPT)), \
  698. @$(call MESSAGE,"Executing post-build script $(s)")$(sep) \
  699. $(Q)$(EXTRA_ENV) $(s) $(TARGET_DIR) $(call qstrip,$(BR2_ROOTFS_POST_SCRIPT_ARGS))$(sep))
  700. touch $(TARGET_DIR)/usr
  701. .PHONY: target-post-image
  702. target-post-image: $(TARGETS_ROOTFS) target-finalize staging-finalize
  703. @rm -f $(ROOTFS_COMMON_TAR)
  704. $(Q)mkdir -p $(BINARIES_DIR)
  705. @$(foreach s, $(call qstrip,$(BR2_ROOTFS_POST_IMAGE_SCRIPT)), \
  706. $(call MESSAGE,"Executing post-image script $(s)"); \
  707. $(EXTRA_ENV) $(s) $(BINARIES_DIR) $(call qstrip,$(BR2_ROOTFS_POST_SCRIPT_ARGS))$(sep))
  708. .PHONY: source
  709. source: $(foreach p,$(PACKAGES),$(p)-all-source)
  710. .PHONY: _external-deps external-deps
  711. _external-deps: $(foreach p,$(PACKAGES),$(p)-all-external-deps)
  712. external-deps:
  713. @$(MAKE1) -Bs $(EXTRAMAKEARGS) _external-deps | sort -u
  714. .PHONY: legal-info-clean
  715. legal-info-clean:
  716. @rm -fr $(LEGAL_INFO_DIR)
  717. .PHONY: legal-info-prepare
  718. legal-info-prepare: $(LEGAL_INFO_DIR)
  719. @$(call MESSAGE,"Buildroot $(BR2_VERSION_FULL) Collecting legal info")
  720. @$(call legal-license-file,buildroot,buildroot,support/legal-info/buildroot.hash,COPYING,COPYING,HOST)
  721. @$(call legal-manifest,TARGET,PACKAGE,VERSION,LICENSE,LICENSE FILES,SOURCE ARCHIVE,SOURCE SITE,DEPENDENCIES WITH LICENSES)
  722. @$(call legal-manifest,HOST,PACKAGE,VERSION,LICENSE,LICENSE FILES,SOURCE ARCHIVE,SOURCE SITE,DEPENDENCIES WITH LICENSES)
  723. @$(call legal-manifest,HOST,buildroot,$(BR2_VERSION_FULL),GPL-2.0+,COPYING,not saved,not saved)
  724. @$(call legal-warning,the Buildroot source code has not been saved)
  725. @cp $(BR2_CONFIG) $(LEGAL_INFO_DIR)/buildroot.config
  726. .PHONY: legal-info
  727. legal-info: legal-info-clean legal-info-prepare $(foreach p,$(PACKAGES),$(p)-all-legal-info) \
  728. $(REDIST_SOURCES_DIR_TARGET) $(REDIST_SOURCES_DIR_HOST)
  729. @cat support/legal-info/README.header >>$(LEGAL_REPORT)
  730. @if [ -r $(LEGAL_WARNINGS) ]; then \
  731. cat support/legal-info/README.warnings-header \
  732. $(LEGAL_WARNINGS) >>$(LEGAL_REPORT); \
  733. cat $(LEGAL_WARNINGS); fi
  734. @rm -f $(LEGAL_WARNINGS)
  735. @(cd $(LEGAL_INFO_DIR); \
  736. find * -type f -exec sha256sum {} + | LC_ALL=C sort -k2 \
  737. >.legal-info.sha256; \
  738. mv .legal-info.sha256 legal-info.sha256)
  739. @echo "Legal info produced in $(LEGAL_INFO_DIR)"
  740. .PHONY: show-targets
  741. show-targets:
  742. @echo $(sort $(PACKAGES)) $(sort $(TARGETS_ROOTFS))
  743. .PHONY: show-build-order
  744. show-build-order: $(patsubst %,%-show-build-order,$(PACKAGES))
  745. .PHONY: graph-build
  746. graph-build: $(O)/build/build-time.log
  747. @install -d $(GRAPHS_DIR)
  748. $(foreach o,name build duration,./support/scripts/graph-build-time \
  749. --type=histogram --order=$(o) --input=$(<) \
  750. --output=$(GRAPHS_DIR)/build.hist-$(o).$(BR_GRAPH_OUT) \
  751. $(if $(BR2_GRAPH_ALT),--alternate-colors)$(sep))
  752. $(foreach t,packages steps,./support/scripts/graph-build-time \
  753. --type=pie-$(t) --input=$(<) \
  754. --output=$(GRAPHS_DIR)/build.pie-$(t).$(BR_GRAPH_OUT) \
  755. $(if $(BR2_GRAPH_ALT),--alternate-colors)$(sep))
  756. .PHONY: graph-depends-requirements
  757. graph-depends-requirements:
  758. @dot -? >/dev/null 2>&1 || \
  759. { echo "ERROR: The 'dot' program from Graphviz is needed for graph-depends" >&2; exit 1; }
  760. .PHONY: graph-depends
  761. graph-depends: graph-depends-requirements
  762. @$(INSTALL) -d $(GRAPHS_DIR)
  763. @cd "$(CONFIG_DIR)"; \
  764. $(TOPDIR)/support/scripts/graph-depends $(BR2_GRAPH_DEPS_OPTS) \
  765. --direct -o $(GRAPHS_DIR)/$(@).dot
  766. dot $(BR2_GRAPH_DOT_OPTS) -T$(BR_GRAPH_OUT) \
  767. -o $(GRAPHS_DIR)/$(@).$(BR_GRAPH_OUT) \
  768. $(GRAPHS_DIR)/$(@).dot
  769. .PHONY: graph-size
  770. graph-size:
  771. $(Q)mkdir -p $(GRAPHS_DIR)
  772. $(Q)$(TOPDIR)/support/scripts/size-stats --builddir $(BASE_DIR) \
  773. --graph $(GRAPHS_DIR)/graph-size.$(BR_GRAPH_OUT) \
  774. --file-size-csv $(GRAPHS_DIR)/file-size-stats.csv \
  775. --package-size-csv $(GRAPHS_DIR)/package-size-stats.csv \
  776. $(BR2_GRAPH_SIZE_OPTS)
  777. .PHONY: check-dependencies
  778. check-dependencies:
  779. @cd "$(CONFIG_DIR)"; \
  780. $(TOPDIR)/support/scripts/graph-depends -C
  781. .PHONY: show-info
  782. show-info:
  783. @:
  784. $(info $(call clean-json, \
  785. { $(foreach p, \
  786. $(sort $(foreach i,$(PACKAGES) $(TARGETS_ROOTFS), \
  787. $(i) \
  788. $($(call UPPERCASE,$(i))_FINAL_RECURSIVE_DEPENDENCIES) \
  789. ) \
  790. ), \
  791. $(call json-info,$(call UPPERCASE,$(p)))$(comma) \
  792. ) } \
  793. ) \
  794. )
  795. .PHONY: pkg-stats
  796. pkg-stats:
  797. @cd "$(CONFIG_DIR)" ; \
  798. $(TOPDIR)/support/scripts/pkg-stats -c \
  799. --json $(O)/pkg-stats.json \
  800. --html $(O)/pkg-stats.html \
  801. --nvd-path $(DL_DIR)/buildroot-nvd
  802. .PHONY: missing-cpe
  803. missing-cpe:
  804. $(Q)mkdir -p $(CPE_UPDATES_DIR)
  805. $(Q)cd "$(CONFIG_DIR)" ; \
  806. $(TOPDIR)/support/scripts/gen-missing-cpe \
  807. --nvd-path $(DL_DIR)/buildroot-nvd \
  808. --output $(CPE_UPDATES_DIR)
  809. else # ifeq ($(BR2_HAVE_DOT_CONFIG),y)
  810. # Some subdirectories are also package names. To avoid that "make linux"
  811. # on an unconfigured tree produces "Nothing to be done", add an explicit
  812. # rule for it.
  813. # Also for 'all' we error out and ask the user to configure first.
  814. .PHONY: linux toolchain
  815. linux toolchain all: outputmakefile
  816. $(error Please configure Buildroot first (e.g. "make menuconfig"))
  817. @exit 1
  818. endif # ifeq ($(BR2_HAVE_DOT_CONFIG),y)
  819. # configuration
  820. # ---------------------------------------------------------------------------
  821. HOSTCFLAGS = $(CFLAGS_FOR_BUILD)
  822. export HOSTCFLAGS
  823. $(BUILD_DIR)/buildroot-config/%onf:
  824. mkdir -p $(@D)/lxdialog
  825. PKG_CONFIG_PATH="$(HOST_PKG_CONFIG_PATH)" $(MAKE) CC="$(HOSTCC_NOCCACHE)" HOSTCC="$(HOSTCC_NOCCACHE)" \
  826. obj=$(@D) -C $(CONFIG) -f Makefile.br $(@F)
  827. DEFCONFIG = $(call qstrip,$(BR2_DEFCONFIG))
  828. # We don't want to fully expand BR2_DEFCONFIG here, so Kconfig will
  829. # recognize that if it's still at its default $(CONFIG_DIR)/defconfig
  830. COMMON_CONFIG_ENV = \
  831. BR2_DEFCONFIG='$(call qstrip,$(value BR2_DEFCONFIG))' \
  832. KCONFIG_AUTOCONFIG=$(BUILD_DIR)/buildroot-config/auto.conf \
  833. KCONFIG_AUTOHEADER=$(BUILD_DIR)/buildroot-config/autoconf.h \
  834. KCONFIG_TRISTATE=$(BUILD_DIR)/buildroot-config/tristate.config \
  835. BR2_CONFIG=$(BR2_CONFIG) \
  836. HOST_GCC_VERSION="$(HOSTCC_VERSION)" \
  837. BASE_DIR=$(BASE_DIR) \
  838. SKIP_LEGACY=
  839. xconfig: $(BUILD_DIR)/buildroot-config/qconf outputmakefile
  840. @$(COMMON_CONFIG_ENV) $< $(CONFIG_CONFIG_IN)
  841. gconfig: $(BUILD_DIR)/buildroot-config/gconf outputmakefile
  842. @$(COMMON_CONFIG_ENV) srctree=$(TOPDIR) $< $(CONFIG_CONFIG_IN)
  843. menuconfig: $(BUILD_DIR)/buildroot-config/mconf outputmakefile
  844. @$(COMMON_CONFIG_ENV) $< $(CONFIG_CONFIG_IN)
  845. nconfig: $(BUILD_DIR)/buildroot-config/nconf outputmakefile
  846. @$(COMMON_CONFIG_ENV) $< $(CONFIG_CONFIG_IN)
  847. config: $(BUILD_DIR)/buildroot-config/conf outputmakefile
  848. @$(COMMON_CONFIG_ENV) $< $(CONFIG_CONFIG_IN)
  849. # For the config targets that automatically select options, we pass
  850. # SKIP_LEGACY=y to disable the legacy options. However, in that case
  851. # no values are set for the legacy options so a subsequent oldconfig
  852. # will query them. Therefore, run an additional olddefconfig.
  853. randconfig allyesconfig alldefconfig allnoconfig: $(BUILD_DIR)/buildroot-config/conf outputmakefile
  854. @$(COMMON_CONFIG_ENV) SKIP_LEGACY=y $< --$@ $(CONFIG_CONFIG_IN)
  855. @$(COMMON_CONFIG_ENV) $< --olddefconfig $(CONFIG_CONFIG_IN) >/dev/null
  856. randpackageconfig allyespackageconfig allnopackageconfig: $(BUILD_DIR)/buildroot-config/conf outputmakefile
  857. @grep -v BR2_PACKAGE_ $(BR2_CONFIG) > $(CONFIG_DIR)/.config.nopkg
  858. @$(COMMON_CONFIG_ENV) SKIP_LEGACY=y \
  859. KCONFIG_ALLCONFIG=$(CONFIG_DIR)/.config.nopkg \
  860. $< --$(subst package,,$@) $(CONFIG_CONFIG_IN)
  861. @rm -f $(CONFIG_DIR)/.config.nopkg
  862. @$(COMMON_CONFIG_ENV) $< --olddefconfig $(CONFIG_CONFIG_IN) >/dev/null
  863. oldconfig syncconfig olddefconfig: $(BUILD_DIR)/buildroot-config/conf outputmakefile
  864. @$(COMMON_CONFIG_ENV) $< --$@ $(CONFIG_CONFIG_IN)
  865. defconfig: $(BUILD_DIR)/buildroot-config/conf outputmakefile
  866. @$(COMMON_CONFIG_ENV) $< --defconfig$(if $(DEFCONFIG),=$(DEFCONFIG)) $(CONFIG_CONFIG_IN)
  867. define percent_defconfig
  868. # Override the BR2_DEFCONFIG from COMMON_CONFIG_ENV with the new defconfig
  869. %_defconfig: $(BUILD_DIR)/buildroot-config/conf $(1)/configs/%_defconfig outputmakefile
  870. @$$(COMMON_CONFIG_ENV) BR2_DEFCONFIG=$(1)/configs/$$@ \
  871. $$< --defconfig=$(1)/configs/$$@ $$(CONFIG_CONFIG_IN)
  872. endef
  873. $(eval $(foreach d,$(call reverse,$(TOPDIR) $(BR2_EXTERNAL_DIRS)),$(call percent_defconfig,$(d))$(sep)))
  874. update-defconfig: savedefconfig
  875. savedefconfig: $(BUILD_DIR)/buildroot-config/conf outputmakefile
  876. @$(COMMON_CONFIG_ENV) $< \
  877. --savedefconfig=$(if $(DEFCONFIG),$(DEFCONFIG),$(CONFIG_DIR)/defconfig) \
  878. $(CONFIG_CONFIG_IN)
  879. @$(SED) '/^BR2_DEFCONFIG=/d' $(if $(DEFCONFIG),$(DEFCONFIG),$(CONFIG_DIR)/defconfig)
  880. .PHONY: defconfig savedefconfig update-defconfig
  881. ################################################################################
  882. #
  883. # Cleanup and misc junk
  884. #
  885. ################################################################################
  886. # staging and target directories do NOT list these as
  887. # dependencies anywhere else
  888. $(BUILD_DIR) $(BASE_TARGET_DIR) $(HOST_DIR) $(BINARIES_DIR) $(LEGAL_INFO_DIR) $(REDIST_SOURCES_DIR_TARGET) $(REDIST_SOURCES_DIR_HOST) $(PER_PACKAGE_DIR):
  889. @mkdir -p $@
  890. # outputmakefile generates a Makefile in the output directory, if using a
  891. # separate output directory. This allows convenient use of make in the
  892. # output directory.
  893. .PHONY: outputmakefile
  894. outputmakefile:
  895. ifeq ($(NEED_WRAPPER),y)
  896. $(Q)$(TOPDIR)/support/scripts/mkmakefile $(TOPDIR) $(O)
  897. endif
  898. # printvars prints all the variables currently defined in our
  899. # Makefiles. Alternatively, if a non-empty VARS variable is passed,
  900. # only the variables matching the make pattern passed in VARS are
  901. # displayed.
  902. .PHONY: printvars
  903. printvars:
  904. @:
  905. $(foreach V, \
  906. $(sort $(filter $(VARS),$(.VARIABLES))), \
  907. $(if $(filter-out environment% default automatic, \
  908. $(origin $V)), \
  909. $(if $(QUOTED_VARS),\
  910. $(info $V='$(subst ','\'',$(if $(RAW_VARS),$(value $V),$($V)))'), \
  911. $(info $V=$(if $(RAW_VARS),$(value $V),$($V))))))
  912. # ')))) # Syntax colouring...
  913. .PHONY: clean
  914. clean:
  915. rm -rf $(BASE_TARGET_DIR) $(BINARIES_DIR) $(HOST_DIR) $(HOST_DIR_SYMLINK) \
  916. $(BUILD_DIR) $(BASE_DIR)/staging \
  917. $(LEGAL_INFO_DIR) $(GRAPHS_DIR) $(PER_PACKAGE_DIR) $(CPE_UPDATES_DIR) \
  918. $(O)/pkg-stats.*
  919. .PHONY: distclean
  920. distclean: clean
  921. ifeq ($(O),$(CURDIR)/output)
  922. rm -rf $(O)
  923. endif
  924. rm -rf $(TOPDIR)/dl $(BR2_CONFIG) $(CONFIG_DIR)/.config.old $(CONFIG_DIR)/..config.tmp \
  925. $(CONFIG_DIR)/.auto.deps $(BASE_DIR)/.br2-external.*
  926. .PHONY: help
  927. help:
  928. @echo 'Cleaning:'
  929. @echo ' clean - delete all files created by build'
  930. @echo ' distclean - delete all non-source files (including .config)'
  931. @echo
  932. @echo 'Build:'
  933. @echo ' all - make world'
  934. @echo ' toolchain - build toolchain'
  935. @echo ' sdk - build relocatable SDK'
  936. @echo
  937. @echo 'Configuration:'
  938. @echo ' menuconfig - interactive curses-based configurator'
  939. @echo ' nconfig - interactive ncurses-based configurator'
  940. @echo ' xconfig - interactive Qt-based configurator'
  941. @echo ' gconfig - interactive GTK-based configurator'
  942. @echo ' oldconfig - resolve any unresolved symbols in .config'
  943. @echo ' syncconfig - Same as oldconfig, but quietly, additionally update deps'
  944. @echo ' olddefconfig - Same as syncconfig but sets new symbols to their default value'
  945. @echo ' randconfig - New config with random answer to all options'
  946. @echo ' defconfig - New config with default answer to all options;'
  947. @echo ' BR2_DEFCONFIG, if set on the command line, is used as input'
  948. @echo ' savedefconfig - Save current config to BR2_DEFCONFIG (minimal config)'
  949. @echo ' update-defconfig - Same as savedefconfig'
  950. @echo ' allyesconfig - New config where all options are accepted with yes'
  951. @echo ' allnoconfig - New config where all options are answered with no'
  952. @echo ' alldefconfig - New config where all options are set to default'
  953. @echo ' randpackageconfig - New config with random answer to package options'
  954. @echo ' allyespackageconfig - New config where pkg options are accepted with yes'
  955. @echo ' allnopackageconfig - New config where package options are answered with no'
  956. @echo
  957. @echo 'Package-specific:'
  958. @echo ' <pkg> - Build and install <pkg> and all its dependencies'
  959. @echo ' <pkg>-source - Only download the source files for <pkg>'
  960. @echo ' <pkg>-extract - Extract <pkg> sources'
  961. @echo ' <pkg>-patch - Apply patches to <pkg>'
  962. @echo ' <pkg>-depends - Build <pkg>'\''s dependencies'
  963. @echo ' <pkg>-configure - Build <pkg> up to the configure step'
  964. @echo ' <pkg>-build - Build <pkg> up to the build step'
  965. @echo ' <pkg>-show-info - generate info about <pkg>, as a JSON blurb'
  966. @echo ' <pkg>-show-depends - List packages on which <pkg> depends'
  967. @echo ' <pkg>-show-rdepends - List packages which have <pkg> as a dependency'
  968. @echo ' <pkg>-show-recursive-depends'
  969. @echo ' - Recursively list packages on which <pkg> depends'
  970. @echo ' <pkg>-show-recursive-rdepends'
  971. @echo ' - Recursively list packages which have <pkg> as a dependency'
  972. @echo ' <pkg>-graph-depends - Generate a graph of <pkg>'\''s dependencies'
  973. @echo ' <pkg>-graph-rdepends - Generate a graph of <pkg>'\''s reverse dependencies'
  974. @echo ' <pkg>-dirclean - Remove <pkg> build directory'
  975. @echo ' <pkg>-reconfigure - Restart the build from the configure step'
  976. @echo ' <pkg>-rebuild - Restart the build from the build step'
  977. @echo ' <pkg>-reinstall - Restart the build from the install step'
  978. $(foreach p,$(HELP_PACKAGES), \
  979. @echo $(sep) \
  980. @echo '$($(p)_NAME):' $(sep) \
  981. $($(p)_HELP_CMDS)$(sep))
  982. @echo
  983. @echo 'Documentation:'
  984. @echo ' manual - build manual in all formats'
  985. @echo ' manual-html - build manual in HTML'
  986. @echo ' manual-split-html - build manual in split HTML'
  987. @echo ' manual-pdf - build manual in PDF'
  988. @echo ' manual-text - build manual in text'
  989. @echo ' manual-epub - build manual in ePub'
  990. @echo ' graph-build - generate graphs of the build times'
  991. @echo ' graph-depends - generate graph of the dependency tree'
  992. @echo ' graph-size - generate stats of the filesystem size'
  993. @echo ' list-defconfigs - list all defconfigs (pre-configured minimal systems)'
  994. @echo
  995. @echo 'Miscellaneous:'
  996. @echo ' source - download all sources needed for offline-build'
  997. @echo ' external-deps - list external packages used'
  998. @echo ' legal-info - generate info about license compliance'
  999. @echo ' show-info - generate info about packages, as a JSON blurb'
  1000. @echo ' pkg-stats - generate info about packages as JSON and HTML'
  1001. @echo ' missing-cpe - generate XML snippets for missing CPE identifiers'
  1002. @echo ' printvars - dump internal variables selected with VARS=...'
  1003. @echo
  1004. @echo ' make V=0|1 - 0 => quiet build (default), 1 => verbose build'
  1005. @echo ' make O=dir - Locate all output files in "dir", including .config'
  1006. @echo
  1007. @echo 'For further details, see README, generate the Buildroot manual, or consult'
  1008. @echo 'it on-line at http://buildroot.org/docs.html'
  1009. @echo
  1010. # List the defconfig files
  1011. # $(1): base directory
  1012. # $(2): br2-external name, empty for bundled
  1013. define list-defconfigs
  1014. @first=true; \
  1015. for defconfig in $(1)/configs/*_defconfig; do \
  1016. [ -f "$${defconfig}" ] || continue; \
  1017. if $${first}; then \
  1018. if [ "$(2)" ]; then \
  1019. printf 'External configs in "$(call qstrip,$(2))":\n'; \
  1020. else \
  1021. printf "Built-in configs:\n"; \
  1022. fi; \
  1023. first=false; \
  1024. fi; \
  1025. defconfig="$${defconfig##*/}"; \
  1026. printf " %-35s - Build for %s\n" "$${defconfig}" "$${defconfig%_defconfig}"; \
  1027. done; \
  1028. $${first} || printf "\n"
  1029. endef
  1030. # We iterate over BR2_EXTERNAL_NAMES rather than BR2_EXTERNAL_DIRS,
  1031. # because we want to display the name of the br2-external tree.
  1032. .PHONY: list-defconfigs
  1033. list-defconfigs:
  1034. $(call list-defconfigs,$(TOPDIR))
  1035. $(foreach name,$(BR2_EXTERNAL_NAMES),\
  1036. $(call list-defconfigs,$(BR2_EXTERNAL_$(name)_PATH),\
  1037. $(BR2_EXTERNAL_$(name)_DESC))$(sep))
  1038. release: OUT = buildroot-$(BR2_VERSION)
  1039. # Create release tarballs. We need to fiddle a bit to add the generated
  1040. # documentation to the git output
  1041. release:
  1042. git archive --format=tar --prefix=$(OUT)/ HEAD > $(OUT).tar
  1043. $(MAKE) O=$(OUT) manual-html manual-text manual-pdf
  1044. $(MAKE) O=$(OUT) distclean
  1045. tar rf $(OUT).tar $(OUT)
  1046. gzip -9 -c < $(OUT).tar > $(OUT).tar.gz
  1047. xz -9 -c < $(OUT).tar > $(OUT).tar.xz
  1048. rm -rf $(OUT) $(OUT).tar
  1049. print-version:
  1050. @echo $(BR2_VERSION_FULL)
  1051. check-flake8:
  1052. $(Q)git ls-tree -r --name-only HEAD \
  1053. | xargs file \
  1054. | grep 'Python script' \
  1055. | cut -d':' -f1 \
  1056. | xargs -- python3 -m flake8 --statistics
  1057. check-package:
  1058. find $(TOPDIR) -type f \( -name '*.mk' -o -name '*.hash' -o -name 'Config.*' \) \
  1059. -exec ./utils/check-package {} +
  1060. include docs/manual/manual.mk
  1061. -include $(foreach dir,$(BR2_EXTERNAL_DIRS),$(sort $(wildcard $(dir)/docs/*/*.mk)))
  1062. .PHONY: $(noconfig_targets)
  1063. endif #umask / $(CURDIR) / $(O)