1 # Makefile for buildroot
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.
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.
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
22 #--------------------------------------------------------------
23 # Just run 'make menuconfig', configure stuff, then run 'make'.
24 # You shouldn't need to mess with anything beyond this point...
25 #--------------------------------------------------------------
27 # Delete default rules. We don't use them. This saves a bit of time.
30 # we want bash as shell
31 SHELL := $(shell if [ -x "$$BASH" ]; then echo $$BASH; \
32 else if [ -x /bin/bash ]; then echo /bin/bash; \
35 # Set O variable if not already done on the command line;
36 # or avoid confusing packages that can use the O=<dir> syntax for out-of-tree
37 # build by preventing it from being forwarded to sub-make calls.
38 ifneq ("$(origin O)", "command line")
42 # Check if the current Buildroot execution meets all the pre-requisites.
43 # If they are not met, Buildroot will actually do its job in a sub-make meeting
44 # its pre-requisites, which are:
45 # 1- Permissive enough umask:
46 # Wrong or too restrictive umask will prevent Buildroot and packages from
47 # creating files and directories.
48 # 2- Absolute canonical CWD (i.e. $(CURDIR)):
49 # Otherwise, some packages will use CWD as-is, others will compute its
50 # absolute canonical path. This makes harder tracking and fixing host
52 # 3- Absolute canonical output location (i.e. $(O)):
53 # For the same reason as the one for CWD.
55 # Remove the trailing '/.' from $(O) as it can be added by the makefile wrapper
56 # installed in the $(O) directory.
57 # Also remove the trailing '/' the user can set when on the command line.
58 override O := $(patsubst %/,%,$(patsubst %.,%,$(O)))
59 # Make sure $(O) actually exists before calling realpath on it; this is to
60 # avoid empty CANONICAL_O in case on non-existing entry.
61 CANONICAL_O := $(shell mkdir -p $(O) >/dev/null 2>&1)$(realpath $(O))
63 # gcc fails to build when the srcdir contains a '@'
64 ifneq ($(findstring @,$(CANONICAL_O)),)
65 $(error The build directory can not contain a '@')
68 CANONICAL_CURDIR = $(realpath $(CURDIR))
72 # Make sure O= is passed (with its absolute canonical path) everywhere the
73 # toplevel makefile is called back.
74 EXTRAMAKEARGS := O=$(CANONICAL_O)
76 # Check Buildroot execution pre-requisites here.
77 ifneq ($(shell umask):$(CURDIR):$(O),$(REQ_UMASK):$(CANONICAL_CURDIR):$(CANONICAL_O))
78 .PHONY: _all $(MAKECMDGOALS)
84 @umask $(REQ_UMASK) && \
85 $(MAKE) -C $(CANONICAL_CURDIR) --no-print-directory \
86 $(MAKECMDGOALS) $(EXTRAMAKEARGS)
88 else # umask / $(CURDIR) / $(O)
90 # This is our default rule, so must come first
94 # Set and export the version string
95 export BR2_VERSION := 2020.02-git
96 # Actual time the release is cut (for reproducible builds)
97 BR2_VERSION_EPOCH = 1575236000
99 # Save running make version since it's clobbered by the make package
100 RUNNING_MAKE_VERSION := $(MAKE_VERSION)
102 # Check for minimal make version (note: this check will break at make 10.x)
103 MIN_MAKE_VERSION = 3.81
104 ifneq ($(firstword $(sort $(RUNNING_MAKE_VERSION) $(MIN_MAKE_VERSION))),$(MIN_MAKE_VERSION))
105 $(error You have make '$(RUNNING_MAKE_VERSION)' installed. GNU make >= $(MIN_MAKE_VERSION) is required)
110 CONFIG_CONFIG_IN = Config.in
111 CONFIG = support/kconfig
112 DATE := $(shell date +%Y%m%d)
114 # Compute the full local version string so packages can use it as-is
115 # Need to export it, so it can be got from environment in children (eg. mconf)
116 export BR2_VERSION_FULL := $(BR2_VERSION)$(shell $(TOPDIR)/support/scripts/setlocalversion)
118 # List of targets and target patterns for which .config doesn't need to be read in
119 noconfig_targets := menuconfig nconfig gconfig xconfig config oldconfig randconfig \
120 defconfig %_defconfig allyesconfig allnoconfig alldefconfig syncconfig release \
121 randpackageconfig allyespackageconfig allnopackageconfig \
122 print-version olddefconfig distclean manual manual-% check-package
124 # Some global targets do not trigger a build, but are used to collect
125 # metadata, or do various checks. When such targets are triggered,
126 # some packages should not do their configuration sanity
127 # checks. Provide them a BR_BUILDING variable set to 'y' when we're
128 # actually building and they should do their sanity checks.
130 # We're building in two situations: when MAKECMDGOALS is empty
131 # (default target is to build), or when MAKECMDGOALS contains
132 # something else than one of the nobuild_targets.
133 nobuild_targets := source %-source \
134 legal-info %-legal-info external-deps _external-deps \
135 clean distclean help show-targets graph-depends \
136 %-graph-depends %-show-depends %-show-version \
137 graph-build graph-size list-defconfigs \
138 savedefconfig update-defconfig printvars
139 ifeq ($(MAKECMDGOALS),)
141 else ifneq ($(filter-out $(nobuild_targets),$(MAKECMDGOALS)),)
145 # We call make recursively to build packages. The command-line overrides that
146 # are passed to Buildroot don't apply to those package build systems. In
147 # particular, we don't want to pass down the O=<dir> option for out-of-tree
148 # builds, because the value specified on the command line will not be correct
152 # Include some helper macros and variables
153 include support/misc/utils.mk
155 # Set variables related to in-tree or out-of-tree build.
156 # Here, both $(O) and $(CURDIR) are absolute canonical paths.
157 ifeq ($(O),$(CURDIR)/output)
158 CONFIG_DIR := $(CURDIR)
165 # bash prints the name of the directory on 'cd <dir>' if CDPATH is
166 # set, so unset it here to not cause problems. Notice that the export
167 # line doesn't affect the environment of $(shell ..) calls.
170 BASE_DIR := $(CANONICAL_O)
171 $(if $(BASE_DIR),, $(error output directory "$(O)" does not exist))
174 # Handling of BR2_EXTERNAL.
176 # The value of BR2_EXTERNAL is stored in .br-external in the output directory.
177 # The location of the external.mk makefile fragments is computed in that file.
178 # On subsequent invocations of make, this file is read in. BR2_EXTERNAL can
179 # still be overridden on the command line, therefore the file is re-created
180 # every time make is run.
182 BR2_EXTERNAL_FILE = $(BASE_DIR)/.br2-external.mk
183 -include $(BR2_EXTERNAL_FILE)
184 $(shell support/scripts/br2-external -d '$(BASE_DIR)' $(BR2_EXTERNAL))
186 include $(BR2_EXTERNAL_FILE)
187 ifneq ($(BR2_EXTERNAL_ERROR),)
188 $(error $(BR2_EXTERNAL_ERROR))
191 # To make sure that the environment variable overrides the .config option,
192 # set this before including .config.
193 ifneq ($(BR2_DL_DIR),)
194 DL_DIR := $(BR2_DL_DIR)
196 ifneq ($(BR2_CCACHE_DIR),)
197 BR_CACHE_DIR := $(BR2_CCACHE_DIR)
200 # Need that early, before we scan packages
201 # Avoids doing the $(or...) everytime
202 BR_GRAPH_OUT := $(or $(BR2_GRAPH_OUT),pdf)
204 BUILD_DIR := $(BASE_DIR)/build
205 BINARIES_DIR := $(BASE_DIR)/images
206 BASE_TARGET_DIR := $(BASE_DIR)/target
207 PER_PACKAGE_DIR := $(BASE_DIR)/per-package
208 # initial definition so that 'make clean' works for most users, even without
209 # .config. HOST_DIR will be overwritten later when .config is included.
210 HOST_DIR := $(BASE_DIR)/host
211 GRAPHS_DIR := $(BASE_DIR)/graphs
213 LEGAL_INFO_DIR = $(BASE_DIR)/legal-info
214 REDIST_SOURCES_DIR_TARGET = $(LEGAL_INFO_DIR)/sources
215 REDIST_SOURCES_DIR_HOST = $(LEGAL_INFO_DIR)/host-sources
216 LICENSE_FILES_DIR_TARGET = $(LEGAL_INFO_DIR)/licenses
217 LICENSE_FILES_DIR_HOST = $(LEGAL_INFO_DIR)/host-licenses
218 LEGAL_MANIFEST_CSV_TARGET = $(LEGAL_INFO_DIR)/manifest.csv
219 LEGAL_MANIFEST_CSV_HOST = $(LEGAL_INFO_DIR)/host-manifest.csv
220 LEGAL_WARNINGS = $(LEGAL_INFO_DIR)/.warnings
221 LEGAL_REPORT = $(LEGAL_INFO_DIR)/README
223 BR2_CONFIG = $(CONFIG_DIR)/.config
225 # Pull in the user's configuration file
226 ifeq ($(filter $(noconfig_targets),$(MAKECMDGOALS)),)
227 -include $(BR2_CONFIG)
230 ifeq ($(BR2_PER_PACKAGE_DIRECTORIES),)
231 # Disable top-level parallel build if per-package directories is not
232 # used. Indeed, per-package directories is necessary to guarantee
233 # determinism and reproducibility with top-level parallel build.
237 # timezone and locale may affect build output
238 ifeq ($(BR2_REPRODUCIBLE),y)
244 # To put more focus on warnings, be less verbose as default
245 # Use 'make V=1' to see the full commands
246 ifeq ("$(origin V)", "command line")
247 KBUILD_VERBOSE = $(V)
249 ifndef KBUILD_VERBOSE
253 ifeq ($(KBUILD_VERBOSE),1)
263 # kconfig uses CONFIG_SHELL
264 CONFIG_SHELL := $(SHELL)
266 export SHELL CONFIG_SHELL Q KBUILD_VERBOSE
276 HOSTCC := $(shell which $(HOSTCC) || type -p $(HOSTCC) || echo gcc)
278 HOSTCC_NOCCACHE := $(HOSTCC)
281 HOSTCXX := $(shell which $(HOSTCXX) || type -p $(HOSTCXX) || echo g++)
283 HOSTCXX_NOCCACHE := $(HOSTCXX)
297 HOSTOBJCOPY := objcopy
302 HOSTAR := $(shell which $(HOSTAR) || type -p $(HOSTAR) || echo ar)
303 HOSTAS := $(shell which $(HOSTAS) || type -p $(HOSTAS) || echo as)
304 HOSTCPP := $(shell which $(HOSTCPP) || type -p $(HOSTCPP) || echo cpp)
305 HOSTLD := $(shell which $(HOSTLD) || type -p $(HOSTLD) || echo ld)
306 HOSTLN := $(shell which $(HOSTLN) || type -p $(HOSTLN) || echo ln)
307 HOSTNM := $(shell which $(HOSTNM) || type -p $(HOSTNM) || echo nm)
308 HOSTOBJCOPY := $(shell which $(HOSTOBJCOPY) || type -p $(HOSTOBJCOPY) || echo objcopy)
309 HOSTRANLIB := $(shell which $(HOSTRANLIB) || type -p $(HOSTRANLIB) || echo ranlib)
310 SED := $(shell which sed || type -p sed) -i -e
312 export HOSTAR HOSTAS HOSTCC HOSTCXX HOSTLD
313 export HOSTCC_NOCCACHE HOSTCXX_NOCCACHE
315 # Determine the userland we are running on.
317 # Note that, despite its name, we are not interested in the actual
318 # architecture name. This is mostly used to determine whether some
319 # of the binary tools (e.g. pre-built external toolchains) can run
320 # on the current host. So we need to know if the userland we're
321 # running on can actually run those toolchains.
323 # For example, a 64-bit prebuilt toolchain will not run on a 64-bit
324 # kernel if the userland is 32-bit (e.g. in a chroot for example).
326 # So, we extract the first part of the tuple the host gcc was
327 # configured to generate code for; we assume this is our userland.
329 export HOSTARCH := $(shell LC_ALL=C $(HOSTCC_NOCCACHE) -v 2>&1 | \
330 sed -e '/^Target: \([^-]*\).*/!d' \
333 -e 's/sun4u/sparc64/' \
336 -e 's/ppc64/powerpc64/' \
337 -e 's/ppc/powerpc/' \
338 -e 's/macppc/powerpc/' \
341 # When adding a new host gcc version in Config.in,
342 # update the HOSTCC_MAX_VERSION variable:
343 HOSTCC_MAX_VERSION := 8
345 HOSTCC_VERSION := $(shell V=$$($(HOSTCC_NOCCACHE) --version | \
346 sed -n -r 's/^.* ([0-9]*)\.([0-9]*)\.([0-9]*)[ ]*.*/\1 \2/p'); \
347 [ "$${V%% *}" -le $(HOSTCC_MAX_VERSION) ] || V=$(HOSTCC_MAX_VERSION); \
350 # For gcc >= 5.x, we only need the major version.
351 ifneq ($(firstword $(HOSTCC_VERSION)),4)
352 HOSTCC_VERSION := $(firstword $(HOSTCC_VERSION))
355 ifeq ($(BR2_NEEDS_HOST_UTF8_LOCALE),y)
356 # First, we try to use the user's configured locale (as that's the
357 # language they'd expect messages to be displayed), then we favour
358 # a non language-specific locale like C.UTF-8 if one is available,
359 # so we sort with the C locale to get it at the top.
360 # This is guaranteed to not be empty, because of the check in
361 # support/dependencies/dependencies.sh
362 HOST_UTF8_LOCALE := $(shell \
363 ( echo $${LC_ALL:-$${LC_MESSAGES:-$${LANG}}}; \
364 locale -a 2>/dev/null | LC_ALL=C sort \
366 | grep -i -E 'utf-?8$$' \
368 HOST_UTF8_LOCALE_ENV := LC_ALL=$(HOST_UTF8_LOCALE)
371 # Make sure pkg-config doesn't look outside the buildroot tree
372 HOST_PKG_CONFIG_PATH := $(PKG_CONFIG_PATH)
373 unexport PKG_CONFIG_PATH
374 unexport PKG_CONFIG_SYSROOT_DIR
375 unexport PKG_CONFIG_LIBDIR
377 # Having DESTDIR set in the environment confuses the installation
378 # steps of some packages.
381 # Causes breakage with packages that needs host-ruby
384 include package/pkg-utils.mk
385 include package/doc-asciidoc.mk
387 ifeq ($(BR2_HAVE_DOT_CONFIG),y)
389 ################################################################################
391 # Hide troublesome environment variables from sub processes
393 ################################################################################
394 unexport CROSS_COMPILE
404 unexport GREP_OPTIONS
415 GNU_HOST_NAME := $(shell support/gnuconfig/config.guess)
420 # silent mode requested?
421 QUIET := $(if $(findstring s,$(filter-out --%,$(MAKEFLAGS))),-q)
423 # Strip off the annoying quoting
424 ARCH := $(call qstrip,$(BR2_ARCH))
426 KERNEL_ARCH := $(shell echo "$(ARCH)" | sed -e "s/-.*//" \
427 -e s/i.86/i386/ -e s/sun4u/sparc64/ \
430 -e s/arm.*/arm/ -e s/sa110/arm/ \
431 -e s/aarch64.*/arm64/ \
432 -e s/nds32.*/nds32/ \
433 -e s/or1k/openrisc/ \
434 -e s/parisc64/parisc/ \
435 -e s/powerpc64.*/powerpc/ \
436 -e s/ppc.*/powerpc/ -e s/mips.*/mips/ \
437 -e s/riscv.*/riscv/ \
439 -e s/microblazeel/microblaze/)
441 ZCAT := $(call qstrip,$(BR2_ZCAT))
442 BZCAT := $(call qstrip,$(BR2_BZCAT))
443 XZCAT := $(call qstrip,$(BR2_XZCAT))
444 LZCAT := $(call qstrip,$(BR2_LZCAT))
445 TAR_OPTIONS = $(call qstrip,$(BR2_TAR_OPTIONS)) -xf
447 ifeq ($(BR2_PER_PACKAGE_DIRECTORIES),y)
448 HOST_DIR = $(if $(PKG),$(PER_PACKAGE_DIR)/$($(PKG)_NAME)/host,$(call qstrip,$(BR2_HOST_DIR)))
449 TARGET_DIR = $(if $(ROOTFS),$(ROOTFS_$(ROOTFS)_TARGET_DIR),$(if $(PKG),$(PER_PACKAGE_DIR)/$($(PKG)_NAME)/target,$(BASE_TARGET_DIR)))
451 HOST_DIR := $(call qstrip,$(BR2_HOST_DIR))
452 TARGET_DIR = $(if $(ROOTFS),$(ROOTFS_$(ROOTFS)_TARGET_DIR),$(BASE_TARGET_DIR))
455 ifneq ($(HOST_DIR),$(BASE_DIR)/host)
456 HOST_DIR_SYMLINK = $(BASE_DIR)/host
457 $(HOST_DIR_SYMLINK): $(BASE_DIR)
458 ln -snf $(HOST_DIR) $(BASE_DIR)/host
461 # Quotes are needed for spaces and all in the original PATH content.
462 BR_PATH = "$(HOST_DIR)/bin:$(HOST_DIR)/sbin:$(PATH)"
464 # Location of a file giving a big fat warning that output/target
465 # should not be used as the root filesystem.
466 TARGET_DIR_WARNING_FILE = $(TARGET_DIR)/THIS_IS_NOT_YOUR_ROOT_FILESYSTEM
468 ifeq ($(BR2_CCACHE),y)
469 CCACHE = $(HOST_DIR)/bin/ccache
470 BR_CACHE_DIR ?= $(call qstrip,$(BR2_CCACHE_DIR))
472 HOSTCC = $(CCACHE) $(HOSTCC_NOCCACHE)
473 HOSTCXX = $(CCACHE) $(HOSTCXX_NOCCACHE)
478 # Scripts in support/ or post-build scripts may need to reference
479 # these locations, so export them so it is easier to use
481 export BR2_REPRODUCIBLE
488 ################################################################################
490 # You should probably leave this stuff alone unless you know
491 # what you are doing.
493 ################################################################################
497 # Include legacy before the other things, because package .mk files
499 include Makefile.legacy
501 include system/system.mk
502 include package/Makefile.in
503 # arch/arch.mk must be after package/Makefile.in because it may need to
504 # complement variables defined therein, like BR_NO_CHECK_HASH_FOR.
506 include support/dependencies/dependencies.mk
508 include $(sort $(wildcard toolchain/*.mk))
509 include $(sort $(wildcard toolchain/*/*.mk))
511 ifeq ($(BR2_REPRODUCIBLE),y)
512 # If SOURCE_DATE_EPOCH has not been set then use the commit date, or the last
513 # release date if the source tree is not within a Git repository.
514 # See: https://reproducible-builds.org/specs/source-date-epoch/
515 BR2_VERSION_GIT_EPOCH := $(shell $(GIT) log -1 --format=%at 2> /dev/null)
516 export SOURCE_DATE_EPOCH ?= $(or $(BR2_VERSION_GIT_EPOCH),$(BR2_VERSION_EPOCH))
519 # Include the package override file if one has been provided in the
521 PACKAGE_OVERRIDE_FILE = $(call qstrip,$(BR2_PACKAGE_OVERRIDE_FILE))
522 ifneq ($(PACKAGE_OVERRIDE_FILE),)
523 -include $(PACKAGE_OVERRIDE_FILE)
526 include $(sort $(wildcard package/*/*.mk))
528 include boot/common.mk
529 include linux/linux.mk
532 # If using a br2-external tree, the BR2_EXTERNAL_$(NAME)_PATH variables
533 # are also present in the .config file. Since .config is included after
534 # we defined them in the Makefile, the values for those variables are
535 # quoted. We just include the generated Makefile fragment .br2-external.mk
536 # a third time, which will set those variables to the un-quoted values.
537 include $(BR2_EXTERNAL_FILE)
539 # Nothing to include if no BR2_EXTERNAL tree in use
540 include $(BR2_EXTERNAL_MKS)
542 # Now we are sure we have all the packages scanned and defined. We now
543 # check for each package in the list of enabled packages, that all its
544 # dependencies are indeed enabled.
546 # Only trigger the check for default builds. If the user forces building
547 # a package, even if not enabled in the configuration, we want to accept
548 # it. However; we also want to be able to force checking the dependencies
549 # if the user so desires. Forcing a dependency check is useful in the case
550 # of test-pkg, as we want to make sure during testing, that a package has
551 # all the dependencies selected in the config file.
553 ifeq ($(MAKECMDGOALS),)
554 BR_FORCE_CHECK_DEPENDENCIES = YES
557 ifeq ($(BR_FORCE_CHECK_DEPENDENCIES),YES)
559 define CHECK_ONE_DEPENDENCY
560 ifeq ($$($(2)_TYPE),target)
561 ifeq ($$($(2)_IS_VIRTUAL),)
562 ifneq ($$($$($(2)_KCONFIG_VAR)),y)
563 $$(error $$($(2)_NAME) is in the dependency chain of $$($(1)_NAME) that \
564 has added it to its _DEPENDENCIES variable without selecting it or \
565 depending on it from Config.in)
571 $(foreach pkg,$(call UPPERCASE,$(PACKAGES)),\
572 $(foreach dep,$(call UPPERCASE,$($(pkg)_FINAL_ALL_DEPENDENCIES)),\
573 $(eval $(call CHECK_ONE_DEPENDENCY,$(pkg),$(dep))$(sep))))
577 $(BUILD_DIR)/buildroot-config/auto.conf: $(BR2_CONFIG)
578 $(MAKE1) $(EXTRAMAKEARGS) HOSTCC="$(HOSTCC_NOCCACHE)" HOSTCXX="$(HOSTCXX_NOCCACHE)" syncconfig
581 prepare: $(BUILD_DIR)/buildroot-config/auto.conf
584 world: target-post-image
588 @$(call MESSAGE,"Rendering the SDK relocatable")
589 PER_PACKAGE_DIR=$(PER_PACKAGE_DIR) $(TOPDIR)/support/scripts/fix-rpath host
590 PER_PACKAGE_DIR=$(PER_PACKAGE_DIR) $(TOPDIR)/support/scripts/fix-rpath staging
591 $(INSTALL) -m 755 $(TOPDIR)/support/misc/relocate-sdk.sh $(HOST_DIR)/relocate-sdk.sh
592 mkdir -p $(HOST_DIR)/share/buildroot
593 echo $(HOST_DIR) > $(HOST_DIR)/share/buildroot/sdk-location
595 BR2_SDK_PREFIX ?= $(GNU_TARGET_NAME)_sdk-buildroot
597 sdk: prepare-sdk $(BR2_TAR_HOST_DEPENDENCY)
598 @$(call MESSAGE,"Generating SDK tarball")
599 $(if $(BR2_SDK_PREFIX),,$(error BR2_SDK_PREFIX can not be empty))
600 $(Q)mkdir -p $(BINARIES_DIR)
601 $(TAR) czf "$(BINARIES_DIR)/$(BR2_SDK_PREFIX).tar.gz" \
602 --owner=0 --group=0 --numeric-owner \
603 --transform='s#^$(patsubst /%,%,$(HOST_DIR))#$(BR2_SDK_PREFIX)#' \
604 -C / $(patsubst /%,%,$(HOST_DIR))
606 RSYNC_VCS_EXCLUSIONS = \
607 --exclude .svn --exclude .git --exclude .hg --exclude .bzr \
610 # When stripping, obey to BR2_STRIP_EXCLUDE_DIRS and
611 # BR2_STRIP_EXCLUDE_FILES
612 STRIP_FIND_COMMON_CMD = \
614 $(if $(call qstrip,$(BR2_STRIP_EXCLUDE_DIRS)), \
615 \( $(call finddirclauses,$(TARGET_DIR),$(call qstrip,$(BR2_STRIP_EXCLUDE_DIRS))) \) \
618 $(if $(call qstrip,$(BR2_STRIP_EXCLUDE_FILES)), \
619 -not \( $(call findfileclauses,$(call qstrip,$(BR2_STRIP_EXCLUDE_FILES))) \) )
621 # Regular stripping for everything, except libpthread, ld-*.so and
623 # - libpthread.so: a non-stripped libpthread shared library is needed for
624 # proper debugging of pthread programs using gdb.
625 # - ld.so: a non-stripped dynamic linker library is needed for valgrind
626 # - kernel modules (*.ko): do not function properly when stripped like normal
627 # applications and libraries. Normally kernel modules are already excluded
628 # by the executable permission check, so the explicit exclusion is only
629 # done for kernel modules with incorrect permissions.
631 $(STRIP_FIND_COMMON_CMD) \
632 -type f \( -perm /111 -o -name '*.so*' \) \
633 -not \( $(call findfileclauses,libpthread*.so* ld-*.so* *.ko) \) \
636 # Special stripping (only debugging symbols) for libpthread and ld-*.so.
637 STRIP_FIND_SPECIAL_LIBS_CMD = \
638 $(STRIP_FIND_COMMON_CMD) \
639 \( -name 'ld-*.so*' -o -name 'libpthread*.so*' \) \
642 ifeq ($(BR2_ECLIPSE_REGISTER),y)
643 define TOOLCHAIN_ECLIPSE_REGISTER
644 ./support/scripts/eclipse-register-toolchain `readlink -f $(O)` \
645 $(notdir $(TARGET_CROSS)) $(BR2_ARCH)
647 TARGET_FINALIZE_HOOKS += TOOLCHAIN_ECLIPSE_REGISTER
650 # Generate locale data. Basically, we call the localedef program
651 # (built by the host-localedef package) for each locale. The input
652 # data comes preferably from the toolchain, or if the toolchain does
653 # not have them (Linaro toolchains), we use the ones available on the
655 ifeq ($(BR2_TOOLCHAIN_USES_GLIBC),y)
656 GLIBC_GENERATE_LOCALES = $(call qstrip,$(BR2_GENERATE_LOCALE))
657 ifneq ($(GLIBC_GENERATE_LOCALES),)
658 PACKAGES += host-localedef
660 define GENERATE_GLIBC_LOCALES
661 $(Q)mkdir -p $(TARGET_DIR)/usr/lib/locale/
662 $(Q)for locale in $(GLIBC_GENERATE_LOCALES) ; do \
663 inputfile=`echo $${locale} | cut -f1 -d'.'` ; \
664 charmap=`echo $${locale} | cut -f2 -d'.' -s` ; \
665 if test -z "$${charmap}" ; then \
668 echo "Generating locale $${inputfile}.$${charmap}" ; \
669 I18NPATH=$(STAGING_DIR)/usr/share/i18n:/usr/share/i18n \
670 $(HOST_DIR)/bin/localedef \
671 --prefix=$(TARGET_DIR) \
672 --$(call LOWERCASE,$(BR2_ENDIAN))-endian \
673 -i $${inputfile} -f $${charmap} \
677 TARGET_FINALIZE_HOOKS += GENERATE_GLIBC_LOCALES
681 ifeq ($(BR2_ENABLE_LOCALE_PURGE),y)
682 LOCALE_WHITELIST = $(BUILD_DIR)/locales.nopurge
683 LOCALE_NOPURGE = $(call qstrip,$(BR2_ENABLE_LOCALE_WHITELIST))
685 # This piece of junk does the following:
686 # First collect the whitelist in a file.
687 # Then go over all the locale dirs and for each subdir, check if it exists
688 # in the whitelist file. If it doesn't, kill it.
689 # Finally, specifically for X11, regenerate locale.dir from the whitelist.
691 rm -f $(LOCALE_WHITELIST)
692 for i in $(LOCALE_NOPURGE) locale-archive; do echo $$i >> $(LOCALE_WHITELIST); done
694 for dir in $(wildcard $(addprefix $(TARGET_DIR),/usr/share/locale /usr/share/X11/locale /usr/lib/locale)); \
696 for langdir in $$dir/*; \
698 if [ -e "$${langdir}" ]; \
700 grep -qx "$${langdir##*/}" $(LOCALE_WHITELIST) || rm -rf $$langdir; \
704 if [ -d $(TARGET_DIR)/usr/share/X11/locale ]; \
706 for lang in $(LOCALE_NOPURGE); \
708 if [ -f $(TARGET_DIR)/usr/share/X11/locale/$$lang/XLC_LOCALE ]; \
710 echo "$$lang/XLC_LOCALE: $$lang"; \
712 done > $(TARGET_DIR)/usr/share/X11/locale/locale.dir; \
715 TARGET_FINALIZE_HOOKS += PURGE_LOCALES
718 $(TARGETS_ROOTFS): target-finalize
720 # Avoid the rootfs name leaking down the dependency chain
721 target-finalize: ROOTFS=
723 .PHONY: host-finalize
724 host-finalize: $(PACKAGES) $(HOST_DIR) $(HOST_DIR_SYMLINK)
725 @$(call MESSAGE,"Finalizing host directory")
726 $(call per-package-rsync,$(sort $(PACKAGES)),host,$(HOST_DIR))
728 .PHONY: staging-finalize
730 @ln -snf $(STAGING_DIR) $(BASE_DIR)/staging
732 .PHONY: target-finalize
733 target-finalize: $(PACKAGES) $(TARGET_DIR) host-finalize
734 @$(call MESSAGE,"Finalizing target directory")
735 $(call per-package-rsync,$(sort $(PACKAGES)),target,$(TARGET_DIR))
736 # Check files that are touched by more than one package
737 $(foreach hook,$(TARGET_FINALIZE_HOOKS),$($(hook))$(sep))
738 rm -rf $(TARGET_DIR)/usr/include $(TARGET_DIR)/usr/share/aclocal \
739 $(TARGET_DIR)/usr/lib/pkgconfig $(TARGET_DIR)/usr/share/pkgconfig \
740 $(TARGET_DIR)/usr/lib/cmake $(TARGET_DIR)/usr/share/cmake
741 find $(TARGET_DIR)/usr/{lib,share}/ -name '*.cmake' -print0 | xargs -0 rm -f
742 find $(TARGET_DIR)/lib/ $(TARGET_DIR)/usr/lib/ $(TARGET_DIR)/usr/libexec/ \
743 \( -name '*.a' -o -name '*.la' \) -print0 | xargs -0 rm -f
744 ifneq ($(BR2_PACKAGE_GDB),y)
745 rm -rf $(TARGET_DIR)/usr/share/gdb
747 ifneq ($(BR2_PACKAGE_BASH),y)
748 rm -rf $(TARGET_DIR)/usr/share/bash-completion
750 ifneq ($(BR2_PACKAGE_ZSH),y)
751 rm -rf $(TARGET_DIR)/usr/share/zsh
753 rm -rf $(TARGET_DIR)/usr/man $(TARGET_DIR)/usr/share/man
754 rm -rf $(TARGET_DIR)/usr/info $(TARGET_DIR)/usr/share/info
755 rm -rf $(TARGET_DIR)/usr/doc $(TARGET_DIR)/usr/share/doc
756 rm -rf $(TARGET_DIR)/usr/share/gtk-doc
757 rmdir $(TARGET_DIR)/usr/share 2>/dev/null || true
758 $(STRIP_FIND_CMD) | xargs -0 $(STRIPCMD) 2>/dev/null || true
759 $(STRIP_FIND_SPECIAL_LIBS_CMD) | xargs -0 -r $(STRIPCMD) $(STRIP_STRIP_DEBUG) 2>/dev/null || true
761 test -f $(TARGET_DIR)/etc/ld.so.conf && \
762 { echo "ERROR: we shouldn't have a /etc/ld.so.conf file"; exit 1; } || true
763 test -d $(TARGET_DIR)/etc/ld.so.conf.d && \
764 { echo "ERROR: we shouldn't have a /etc/ld.so.conf.d directory"; exit 1; } || true
765 mkdir -p $(TARGET_DIR)/etc
767 echo "NAME=Buildroot"; \
768 echo "VERSION=$(BR2_VERSION_FULL)"; \
769 echo "ID=buildroot"; \
770 echo "VERSION_ID=$(BR2_VERSION)"; \
771 echo "PRETTY_NAME=\"Buildroot $(BR2_VERSION)\"" \
772 ) > $(TARGET_DIR)/usr/lib/os-release
773 ln -sf ../usr/lib/os-release $(TARGET_DIR)/etc
775 @$(call MESSAGE,"Sanitizing RPATH in target tree")
776 PER_PACKAGE_DIR=$(PER_PACKAGE_DIR) $(TOPDIR)/support/scripts/fix-rpath target
778 # For a merged /usr, ensure that /lib, /bin and /sbin and their /usr
779 # counterparts are appropriately setup as symlinks ones to the others.
780 ifeq ($(BR2_ROOTFS_MERGED_USR),y)
782 @$(foreach d, $(call qstrip,$(BR2_ROOTFS_OVERLAY)), \
783 $(call MESSAGE,"Sanity check in overlay $(d)"); \
784 not_merged_dirs="$$(support/scripts/check-merged-usr.sh $(d))"; \
785 test -n "$$not_merged_dirs" && { \
786 echo "ERROR: The overlay in $(d) is not" \
787 "using a merged /usr for the following directories:" \
794 @$(foreach d, $(call qstrip,$(BR2_ROOTFS_OVERLAY)), \
795 $(call MESSAGE,"Copying overlay $(d)"); \
796 $(call SYSTEM_RSYNC,$(d),$(TARGET_DIR))$(sep))
798 @$(foreach s, $(call qstrip,$(BR2_ROOTFS_POST_BUILD_SCRIPT)), \
799 $(call MESSAGE,"Executing post-build script $(s)"); \
800 $(EXTRA_ENV) $(s) $(TARGET_DIR) $(call qstrip,$(BR2_ROOTFS_POST_SCRIPT_ARGS))$(sep))
802 touch $(TARGET_DIR)/usr
804 .PHONY: target-post-image
805 target-post-image: $(TARGETS_ROOTFS) target-finalize staging-finalize
806 @rm -f $(ROOTFS_COMMON_TAR)
807 $(Q)mkdir -p $(BINARIES_DIR)
808 @$(foreach s, $(call qstrip,$(BR2_ROOTFS_POST_IMAGE_SCRIPT)), \
809 $(call MESSAGE,"Executing post-image script $(s)"); \
810 $(EXTRA_ENV) $(s) $(BINARIES_DIR) $(call qstrip,$(BR2_ROOTFS_POST_SCRIPT_ARGS))$(sep))
813 source: $(foreach p,$(PACKAGES),$(p)-all-source)
815 .PHONY: _external-deps external-deps
816 _external-deps: $(foreach p,$(PACKAGES),$(p)-all-external-deps)
818 @$(MAKE1) -Bs $(EXTRAMAKEARGS) _external-deps | sort -u
820 .PHONY: legal-info-clean
822 @rm -fr $(LEGAL_INFO_DIR)
824 .PHONY: legal-info-prepare
825 legal-info-prepare: $(LEGAL_INFO_DIR)
826 @$(call MESSAGE,"Buildroot $(BR2_VERSION_FULL) Collecting legal info")
827 @$(call legal-license-file,buildroot,buildroot,support/legal-info/buildroot.hash,COPYING,COPYING,HOST)
828 @$(call legal-manifest,TARGET,PACKAGE,VERSION,LICENSE,LICENSE FILES,SOURCE ARCHIVE,SOURCE SITE,DEPENDENCIES WITH LICENSES)
829 @$(call legal-manifest,HOST,PACKAGE,VERSION,LICENSE,LICENSE FILES,SOURCE ARCHIVE,SOURCE SITE,DEPENDENCIES WITH LICENSES)
830 @$(call legal-manifest,HOST,buildroot,$(BR2_VERSION_FULL),GPL-2.0+,COPYING,not saved,not saved)
831 @$(call legal-warning,the Buildroot source code has not been saved)
832 @cp $(BR2_CONFIG) $(LEGAL_INFO_DIR)/buildroot.config
835 legal-info: legal-info-clean legal-info-prepare $(foreach p,$(PACKAGES),$(p)-all-legal-info) \
836 $(REDIST_SOURCES_DIR_TARGET) $(REDIST_SOURCES_DIR_HOST)
837 @cat support/legal-info/README.header >>$(LEGAL_REPORT)
838 @if [ -r $(LEGAL_WARNINGS) ]; then \
839 cat support/legal-info/README.warnings-header \
840 $(LEGAL_WARNINGS) >>$(LEGAL_REPORT); \
841 cat $(LEGAL_WARNINGS); fi
842 @rm -f $(LEGAL_WARNINGS)
843 @(cd $(LEGAL_INFO_DIR); \
844 find * -type f -exec sha256sum {} + | LC_ALL=C sort -k2 \
845 >.legal-info.sha256; \
846 mv .legal-info.sha256 legal-info.sha256)
847 @echo "Legal info produced in $(LEGAL_INFO_DIR)"
851 @echo $(sort $(PACKAGES)) $(sort $(TARGETS_ROOTFS))
853 .PHONY: show-build-order
854 show-build-order: $(patsubst %,%-show-build-order,$(PACKAGES))
857 graph-build: $(O)/build/build-time.log
858 @install -d $(GRAPHS_DIR)
859 $(foreach o,name build duration,./support/scripts/graph-build-time \
860 --type=histogram --order=$(o) --input=$(<) \
861 --output=$(GRAPHS_DIR)/build.hist-$(o).$(BR_GRAPH_OUT) \
862 $(if $(BR2_GRAPH_ALT),--alternate-colors)$(sep))
863 $(foreach t,packages steps,./support/scripts/graph-build-time \
864 --type=pie-$(t) --input=$(<) \
865 --output=$(GRAPHS_DIR)/build.pie-$(t).$(BR_GRAPH_OUT) \
866 $(if $(BR2_GRAPH_ALT),--alternate-colors)$(sep))
868 .PHONY: graph-depends-requirements
869 graph-depends-requirements:
870 @dot -? >/dev/null 2>&1 || \
871 { echo "ERROR: The 'dot' program from Graphviz is needed for graph-depends" >&2; exit 1; }
873 .PHONY: graph-depends
874 graph-depends: graph-depends-requirements
875 @$(INSTALL) -d $(GRAPHS_DIR)
876 @cd "$(CONFIG_DIR)"; \
877 $(TOPDIR)/support/scripts/graph-depends $(BR2_GRAPH_DEPS_OPTS) \
878 --direct -o $(GRAPHS_DIR)/$(@).dot
879 dot $(BR2_GRAPH_DOT_OPTS) -T$(BR_GRAPH_OUT) \
880 -o $(GRAPHS_DIR)/$(@).$(BR_GRAPH_OUT) \
881 $(GRAPHS_DIR)/$(@).dot
885 $(Q)mkdir -p $(GRAPHS_DIR)
886 $(Q)$(TOPDIR)/support/scripts/size-stats --builddir $(BASE_DIR) \
887 --graph $(GRAPHS_DIR)/graph-size.$(BR_GRAPH_OUT) \
888 --file-size-csv $(GRAPHS_DIR)/file-size-stats.csv \
889 --package-size-csv $(GRAPHS_DIR)/package-size-stats.csv \
890 $(BR2_GRAPH_SIZE_OPTS)
892 .PHONY: check-dependencies
894 @cd "$(CONFIG_DIR)"; \
895 $(TOPDIR)/support/scripts/graph-depends -C
900 $(info $(call clean-json, \
902 $(sort $(foreach i,$(PACKAGES) $(TARGETS_ROOTFS), \
904 $($(call UPPERCASE,$(i))_FINAL_RECURSIVE_DEPENDENCIES) \
907 $(call json-info,$(call UPPERCASE,$(p)))$(comma) \
912 else # ifeq ($(BR2_HAVE_DOT_CONFIG),y)
914 # Some subdirectories are also package names. To avoid that "make linux"
915 # on an unconfigured tree produces "Nothing to be done", add an explicit
917 # Also for 'all' we error out and ask the user to configure first.
918 .PHONY: linux toolchain
919 linux toolchain all: outputmakefile
920 $(error Please configure Buildroot first (e.g. "make menuconfig"))
923 endif # ifeq ($(BR2_HAVE_DOT_CONFIG),y)
926 # ---------------------------------------------------------------------------
928 HOSTCFLAGS = $(CFLAGS_FOR_BUILD)
931 $(BUILD_DIR)/buildroot-config/%onf:
932 mkdir -p $(@D)/lxdialog
933 PKG_CONFIG_PATH="$(HOST_PKG_CONFIG_PATH)" $(MAKE) CC="$(HOSTCC_NOCCACHE)" HOSTCC="$(HOSTCC_NOCCACHE)" \
934 obj=$(@D) -C $(CONFIG) -f Makefile.br $(@F)
936 DEFCONFIG = $(call qstrip,$(BR2_DEFCONFIG))
938 # We don't want to fully expand BR2_DEFCONFIG here, so Kconfig will
939 # recognize that if it's still at its default $(CONFIG_DIR)/defconfig
940 COMMON_CONFIG_ENV = \
941 BR2_DEFCONFIG='$(call qstrip,$(value BR2_DEFCONFIG))' \
942 KCONFIG_AUTOCONFIG=$(BUILD_DIR)/buildroot-config/auto.conf \
943 KCONFIG_AUTOHEADER=$(BUILD_DIR)/buildroot-config/autoconf.h \
944 KCONFIG_TRISTATE=$(BUILD_DIR)/buildroot-config/tristate.config \
945 BR2_CONFIG=$(BR2_CONFIG) \
946 HOST_GCC_VERSION="$(HOSTCC_VERSION)" \
947 BASE_DIR=$(BASE_DIR) \
950 xconfig: $(BUILD_DIR)/buildroot-config/qconf outputmakefile
951 @$(COMMON_CONFIG_ENV) $< $(CONFIG_CONFIG_IN)
953 gconfig: $(BUILD_DIR)/buildroot-config/gconf outputmakefile
954 @$(COMMON_CONFIG_ENV) srctree=$(TOPDIR) $< $(CONFIG_CONFIG_IN)
956 menuconfig: $(BUILD_DIR)/buildroot-config/mconf outputmakefile
957 @$(COMMON_CONFIG_ENV) $< $(CONFIG_CONFIG_IN)
959 nconfig: $(BUILD_DIR)/buildroot-config/nconf outputmakefile
960 @$(COMMON_CONFIG_ENV) $< $(CONFIG_CONFIG_IN)
962 config: $(BUILD_DIR)/buildroot-config/conf outputmakefile
963 @$(COMMON_CONFIG_ENV) $< $(CONFIG_CONFIG_IN)
965 # For the config targets that automatically select options, we pass
966 # SKIP_LEGACY=y to disable the legacy options. However, in that case
967 # no values are set for the legacy options so a subsequent oldconfig
968 # will query them. Therefore, run an additional olddefconfig.
970 randconfig allyesconfig alldefconfig allnoconfig: $(BUILD_DIR)/buildroot-config/conf outputmakefile
971 @$(COMMON_CONFIG_ENV) SKIP_LEGACY=y $< --$@ $(CONFIG_CONFIG_IN)
972 @$(COMMON_CONFIG_ENV) $< --olddefconfig $(CONFIG_CONFIG_IN) >/dev/null
974 randpackageconfig allyespackageconfig allnopackageconfig: $(BUILD_DIR)/buildroot-config/conf outputmakefile
975 @grep -v BR2_PACKAGE_ $(BR2_CONFIG) > $(CONFIG_DIR)/.config.nopkg
976 @$(COMMON_CONFIG_ENV) SKIP_LEGACY=y \
977 KCONFIG_ALLCONFIG=$(CONFIG_DIR)/.config.nopkg \
978 $< --$(subst package,,$@) $(CONFIG_CONFIG_IN)
979 @rm -f $(CONFIG_DIR)/.config.nopkg
980 @$(COMMON_CONFIG_ENV) $< --olddefconfig $(CONFIG_CONFIG_IN) >/dev/null
982 oldconfig syncconfig olddefconfig: $(BUILD_DIR)/buildroot-config/conf outputmakefile
983 @$(COMMON_CONFIG_ENV) $< --$@ $(CONFIG_CONFIG_IN)
985 defconfig: $(BUILD_DIR)/buildroot-config/conf outputmakefile
986 @$(COMMON_CONFIG_ENV) $< --defconfig$(if $(DEFCONFIG),=$(DEFCONFIG)) $(CONFIG_CONFIG_IN)
988 define percent_defconfig
989 # Override the BR2_DEFCONFIG from COMMON_CONFIG_ENV with the new defconfig
990 %_defconfig: $(BUILD_DIR)/buildroot-config/conf $(1)/configs/%_defconfig outputmakefile
991 @$$(COMMON_CONFIG_ENV) BR2_DEFCONFIG=$(1)/configs/$$@ \
992 $$< --defconfig=$(1)/configs/$$@ $$(CONFIG_CONFIG_IN)
994 $(eval $(foreach d,$(call reverse,$(TOPDIR) $(BR2_EXTERNAL_DIRS)),$(call percent_defconfig,$(d))$(sep)))
996 update-defconfig: savedefconfig
998 savedefconfig: $(BUILD_DIR)/buildroot-config/conf outputmakefile
999 @$(COMMON_CONFIG_ENV) $< \
1000 --savedefconfig=$(if $(DEFCONFIG),$(DEFCONFIG),$(CONFIG_DIR)/defconfig) \
1002 @$(SED) '/BR2_DEFCONFIG=/d' $(if $(DEFCONFIG),$(DEFCONFIG),$(CONFIG_DIR)/defconfig)
1004 .PHONY: defconfig savedefconfig update-defconfig
1006 ################################################################################
1008 # Cleanup and misc junk
1010 ################################################################################
1012 # staging and target directories do NOT list these as
1013 # dependencies anywhere else
1014 $(BUILD_DIR) $(BASE_TARGET_DIR) $(HOST_DIR) $(BINARIES_DIR) $(LEGAL_INFO_DIR) $(REDIST_SOURCES_DIR_TARGET) $(REDIST_SOURCES_DIR_HOST) $(PER_PACKAGE_DIR):
1017 # outputmakefile generates a Makefile in the output directory, if using a
1018 # separate output directory. This allows convenient use of make in the
1020 .PHONY: outputmakefile
1022 ifeq ($(NEED_WRAPPER),y)
1023 $(Q)$(TOPDIR)/support/scripts/mkmakefile $(TOPDIR) $(O)
1026 # printvars prints all the variables currently defined in our
1027 # Makefiles. Alternatively, if a non-empty VARS variable is passed,
1028 # only the variables matching the make pattern passed in VARS are
1034 $(sort $(filter $(VARS),$(.VARIABLES))), \
1035 $(if $(filter-out environment% default automatic, \
1037 $(if $(QUOTED_VARS),\
1038 $(info $V='$(subst ','\'',$(if $(RAW_VARS),$(value $V),$($V)))'), \
1039 $(info $V=$(if $(RAW_VARS),$(value $V),$($V))))))
1040 # ' Syntax colouring...
1044 rm -rf $(BASE_TARGET_DIR) $(BINARIES_DIR) $(HOST_DIR) $(HOST_DIR_SYMLINK) \
1045 $(BUILD_DIR) $(BASE_DIR)/staging \
1046 $(LEGAL_INFO_DIR) $(GRAPHS_DIR) $(PER_PACKAGE_DIR)
1050 ifeq ($(O),$(CURDIR)/output)
1053 rm -rf $(TOPDIR)/dl $(BR2_CONFIG) $(CONFIG_DIR)/.config.old $(CONFIG_DIR)/..config.tmp \
1054 $(CONFIG_DIR)/.auto.deps $(BASE_DIR)/.br2-external.*
1059 @echo ' clean - delete all files created by build'
1060 @echo ' distclean - delete all non-source files (including .config)'
1063 @echo ' all - make world'
1064 @echo ' toolchain - build toolchain'
1065 @echo ' sdk - build relocatable SDK'
1067 @echo 'Configuration:'
1068 @echo ' menuconfig - interactive curses-based configurator'
1069 @echo ' nconfig - interactive ncurses-based configurator'
1070 @echo ' xconfig - interactive Qt-based configurator'
1071 @echo ' gconfig - interactive GTK-based configurator'
1072 @echo ' oldconfig - resolve any unresolved symbols in .config'
1073 @echo ' syncconfig - Same as oldconfig, but quietly, additionally update deps'
1074 @echo ' olddefconfig - Same as syncconfig but sets new symbols to their default value'
1075 @echo ' randconfig - New config with random answer to all options'
1076 @echo ' defconfig - New config with default answer to all options;'
1077 @echo ' BR2_DEFCONFIG, if set on the command line, is used as input'
1078 @echo ' savedefconfig - Save current config to BR2_DEFCONFIG (minimal config)'
1079 @echo ' update-defconfig - Same as savedefconfig'
1080 @echo ' allyesconfig - New config where all options are accepted with yes'
1081 @echo ' allnoconfig - New config where all options are answered with no'
1082 @echo ' alldefconfig - New config where all options are set to default'
1083 @echo ' randpackageconfig - New config with random answer to package options'
1084 @echo ' allyespackageconfig - New config where pkg options are accepted with yes'
1085 @echo ' allnopackageconfig - New config where package options are answered with no'
1087 @echo 'Package-specific:'
1088 @echo ' <pkg> - Build and install <pkg> and all its dependencies'
1089 @echo ' <pkg>-source - Only download the source files for <pkg>'
1090 @echo ' <pkg>-extract - Extract <pkg> sources'
1091 @echo ' <pkg>-patch - Apply patches to <pkg>'
1092 @echo ' <pkg>-depends - Build <pkg>'\''s dependencies'
1093 @echo ' <pkg>-configure - Build <pkg> up to the configure step'
1094 @echo ' <pkg>-build - Build <pkg> up to the build step'
1095 @echo ' <pkg>-show-info - generate info about <pkg>, as a JSON blurb'
1096 @echo ' <pkg>-show-depends - List packages on which <pkg> depends'
1097 @echo ' <pkg>-show-rdepends - List packages which have <pkg> as a dependency'
1098 @echo ' <pkg>-show-recursive-depends'
1099 @echo ' - Recursively list packages on which <pkg> depends'
1100 @echo ' <pkg>-show-recursive-rdepends'
1101 @echo ' - Recursively list packages which have <pkg> as a dependency'
1102 @echo ' <pkg>-graph-depends - Generate a graph of <pkg>'\''s dependencies'
1103 @echo ' <pkg>-graph-rdepends - Generate a graph of <pkg>'\''s reverse dependencies'
1104 @echo ' <pkg>-dirclean - Remove <pkg> build directory'
1105 @echo ' <pkg>-reconfigure - Restart the build from the configure step'
1106 @echo ' <pkg>-rebuild - Restart the build from the build step'
1107 $(foreach p,$(HELP_PACKAGES), \
1109 @echo '$($(p)_NAME):' $(sep) \
1110 $($(p)_HELP_CMDS)$(sep))
1112 @echo 'Documentation:'
1113 @echo ' manual - build manual in all formats'
1114 @echo ' manual-html - build manual in HTML'
1115 @echo ' manual-split-html - build manual in split HTML'
1116 @echo ' manual-pdf - build manual in PDF'
1117 @echo ' manual-text - build manual in text'
1118 @echo ' manual-epub - build manual in ePub'
1119 @echo ' graph-build - generate graphs of the build times'
1120 @echo ' graph-depends - generate graph of the dependency tree'
1121 @echo ' graph-size - generate stats of the filesystem size'
1122 @echo ' list-defconfigs - list all defconfigs (pre-configured minimal systems)'
1124 @echo 'Miscellaneous:'
1125 @echo ' source - download all sources needed for offline-build'
1126 @echo ' external-deps - list external packages used'
1127 @echo ' legal-info - generate info about license compliance'
1128 @echo ' show-info - generate info about packages, as a JSON blurb'
1129 @echo ' printvars - dump internal variables selected with VARS=...'
1131 @echo ' make V=0|1 - 0 => quiet build (default), 1 => verbose build'
1132 @echo ' make O=dir - Locate all output files in "dir", including .config'
1134 @echo 'For further details, see README, generate the Buildroot manual, or consult'
1135 @echo 'it on-line at http://buildroot.org/docs.html'
1138 # List the defconfig files
1139 # $(1): base directory
1140 # $(2): br2-external name, empty for bundled
1141 define list-defconfigs
1143 for defconfig in $(1)/configs/*_defconfig; do \
1144 [ -f "$${defconfig}" ] || continue; \
1145 if $${first}; then \
1146 if [ "$(2)" ]; then \
1147 printf 'External configs in "$(call qstrip,$(2))":\n'; \
1149 printf "Built-in configs:\n"; \
1153 defconfig="$${defconfig##*/}"; \
1154 printf " %-35s - Build for %s\n" "$${defconfig}" "$${defconfig%_defconfig}"; \
1156 $${first} || printf "\n"
1159 # We iterate over BR2_EXTERNAL_NAMES rather than BR2_EXTERNAL_DIRS,
1160 # because we want to display the name of the br2-external tree.
1161 .PHONY: list-defconfigs
1163 $(call list-defconfigs,$(TOPDIR))
1164 $(foreach name,$(BR2_EXTERNAL_NAMES),\
1165 $(call list-defconfigs,$(BR2_EXTERNAL_$(name)_PATH),\
1166 $(BR2_EXTERNAL_$(name)_DESC))$(sep))
1168 release: OUT = buildroot-$(BR2_VERSION)
1170 # Create release tarballs. We need to fiddle a bit to add the generated
1171 # documentation to the git output
1173 git archive --format=tar --prefix=$(OUT)/ HEAD > $(OUT).tar
1174 $(MAKE) O=$(OUT) manual-html manual-text manual-pdf
1175 $(MAKE) O=$(OUT) clean
1176 tar rf $(OUT).tar $(OUT)
1177 gzip -9 -c < $(OUT).tar > $(OUT).tar.gz
1178 bzip2 -9 -c < $(OUT).tar > $(OUT).tar.bz2
1179 rm -rf $(OUT) $(OUT).tar
1182 @echo $(BR2_VERSION_FULL)
1185 find $(TOPDIR) -type f \( -name '*.mk' -o -name '*.hash' -o -name 'Config.*' \) \
1186 -exec ./utils/check-package {} +
1188 .PHONY: .gitlab-ci.yml
1189 .gitlab-ci.yml: .gitlab-ci.yml.in
1190 ./support/scripts/generate-gitlab-ci-yml $< > $@
1192 include docs/manual/manual.mk
1193 -include $(foreach dir,$(BR2_EXTERNAL_DIRS),$(sort $(wildcard $(dir)/docs/*/*.mk)))
1195 .PHONY: $(noconfig_targets)
1197 endif #umask / $(CURDIR) / $(O)