1 # Makefile for buildroot
5 # This program is free software; you can redistribute it and/or modify
6 # it under the terms of the GNU General Public License as published by
7 # the Free Software Foundation; either version 2 of the License, or
8 # (at your option) any later version.
10 # This program is distributed in the hope that it will be useful,
11 # but WITHOUT ANY WARRANTY; without even the implied warranty of
12 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 # General Public License for more details.
15 # You should have received a copy of the GNU General Public License
16 # along with this program; if not, write to the Free Software
17 # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
20 #--------------------------------------------------------------
21 # Just run 'make menuconfig', configure stuff, then run 'make'.
22 # You shouldn't need to mess with anything beyond this point...
23 #--------------------------------------------------------------
25 # Delete default rules. We don't use them. This saves a bit of time.
28 # we want bash as shell
29 SHELL := $(shell if [ -x "$$BASH" ]; then echo $$BASH; \
30 else if [ -x /bin/bash ]; then echo /bin/bash; \
33 # Set O variable if not already done on the command line;
34 # or avoid confusing packages that can use the O=<dir> syntax for out-of-tree
35 # build by preventing it from being forwarded to sub-make calls.
36 ifneq ("$(origin O)", "command line")
40 # Check if the current Buildroot execution meets all the pre-requisites.
41 # If they are not met, Buildroot will actually do its job in a sub-make meeting
42 # its pre-requisites, which are:
43 # 1- Permissive enough umask:
44 # Wrong or too restrictive umask will prevent Buildroot and packages from
45 # creating files and directories.
46 # 2- Absolute canonical CWD (i.e. $(CURDIR)):
47 # Otherwise, some packages will use CWD as-is, others will compute its
48 # absolute canonical path. This makes harder tracking and fixing host
50 # 3- Absolute canonical output location (i.e. $(O)):
51 # For the same reason as the one for CWD.
53 # Remove the trailing '/.' from $(O) as it can be added by the makefile wrapper
54 # installed in the $(O) directory.
55 # Also remove the trailing '/' the user can set when on the command line.
56 override O := $(patsubst %/,%,$(patsubst %.,%,$(O)))
57 # Make sure $(O) actually exists before calling realpath on it; this is to
58 # avoid empty CANONICAL_O in case on non-existing entry.
59 CANONICAL_O := $(shell mkdir -p $(O) >/dev/null 2>&1)$(realpath $(O))
61 # gcc fails to build when the srcdir contains a '@'
62 ifneq ($(findstring @,$(CANONICAL_O)),)
63 $(error The build directory can not contain a '@')
66 CANONICAL_CURDIR = $(realpath $(CURDIR))
70 # Make sure O= is passed (with its absolute canonical path) everywhere the
71 # toplevel makefile is called back.
72 EXTRAMAKEARGS := O=$(CANONICAL_O)
74 # Check Buildroot execution pre-requisites here.
75 ifneq ($(shell umask):$(CURDIR):$(O),$(REQ_UMASK):$(CANONICAL_CURDIR):$(CANONICAL_O))
76 .PHONY: _all $(MAKECMDGOALS)
82 @umask $(REQ_UMASK) && \
83 $(MAKE) -C $(CANONICAL_CURDIR) --no-print-directory \
84 $(MAKECMDGOALS) $(EXTRAMAKEARGS)
86 else # umask / $(CURDIR) / $(O)
88 # This is our default rule, so must come first
92 # Set and export the version string
93 export BR2_VERSION := 2023.05-rc2
94 # Actual time the release is cut (for reproducible builds)
95 BR2_VERSION_EPOCH = 1685305000
97 # Save running make version since it's clobbered by the make package
98 RUNNING_MAKE_VERSION := $(MAKE_VERSION)
100 # Check for minimal make version (note: this check will break at make 10.x)
101 MIN_MAKE_VERSION = 3.81
102 ifneq ($(firstword $(sort $(RUNNING_MAKE_VERSION) $(MIN_MAKE_VERSION))),$(MIN_MAKE_VERSION))
103 $(error You have make '$(RUNNING_MAKE_VERSION)' installed. GNU make >= $(MIN_MAKE_VERSION) is required)
108 CONFIG_CONFIG_IN = Config.in
109 CONFIG = support/kconfig
110 DATE := $(shell date +%Y%m%d)
112 # Compute the full local version string so packages can use it as-is
113 # Need to export it, so it can be got from environment in children (eg. mconf)
115 BR2_LOCALVERSION := $(shell $(TOPDIR)/support/scripts/setlocalversion)
116 ifeq ($(BR2_LOCALVERSION),)
117 export BR2_VERSION_FULL := $(BR2_VERSION)
119 export BR2_VERSION_FULL := $(BR2_LOCALVERSION)
122 # List of targets and target patterns for which .config doesn't need to be read in
123 noconfig_targets := menuconfig nconfig gconfig xconfig config oldconfig randconfig \
124 defconfig %_defconfig allyesconfig allnoconfig alldefconfig syncconfig release \
125 randpackageconfig allyespackageconfig allnopackageconfig \
126 print-version olddefconfig distclean manual manual-% check-package
128 # Some global targets do not trigger a build, but are used to collect
129 # metadata, or do various checks. When such targets are triggered,
130 # some packages should not do their configuration sanity
131 # checks. Provide them a BR_BUILDING variable set to 'y' when we're
132 # actually building and they should do their sanity checks.
134 # We're building in two situations: when MAKECMDGOALS is empty
135 # (default target is to build), or when MAKECMDGOALS contains
136 # something else than one of the nobuild_targets.
137 nobuild_targets := source %-source \
138 legal-info %-legal-info external-deps _external-deps \
139 clean distclean help show-targets graph-depends \
140 %-graph-depends %-show-depends %-show-version \
141 graph-build graph-size list-defconfigs \
142 savedefconfig update-defconfig printvars show-vars
143 ifeq ($(MAKECMDGOALS),)
145 else ifneq ($(filter-out $(nobuild_targets),$(MAKECMDGOALS)),)
149 # We call make recursively to build packages. The command-line overrides that
150 # are passed to Buildroot don't apply to those package build systems. In
151 # particular, we don't want to pass down the O=<dir> option for out-of-tree
152 # builds, because the value specified on the command line will not be correct
156 # Include some helper macros and variables
157 include support/misc/utils.mk
159 # Set variables related to in-tree or out-of-tree build.
160 # Here, both $(O) and $(CURDIR) are absolute canonical paths.
161 ifeq ($(O),$(CURDIR)/output)
162 CONFIG_DIR := $(CURDIR)
169 # bash prints the name of the directory on 'cd <dir>' if CDPATH is
170 # set, so unset it here to not cause problems. Notice that the export
171 # line doesn't affect the environment of $(shell ..) calls.
174 BASE_DIR := $(CANONICAL_O)
175 $(if $(BASE_DIR),, $(error output directory "$(O)" does not exist))
178 # Handling of BR2_EXTERNAL.
180 # The value of BR2_EXTERNAL is stored in .br-external in the output directory.
181 # The location of the external.mk makefile fragments is computed in that file.
182 # On subsequent invocations of make, this file is read in. BR2_EXTERNAL can
183 # still be overridden on the command line, therefore the file is re-created
184 # every time make is run.
186 BR2_EXTERNAL_FILE = $(BASE_DIR)/.br2-external.mk
187 -include $(BR2_EXTERNAL_FILE)
188 $(shell support/scripts/br2-external -d '$(BASE_DIR)' $(BR2_EXTERNAL))
190 include $(BR2_EXTERNAL_FILE)
191 ifneq ($(BR2_EXTERNAL_ERROR),)
192 $(error $(BR2_EXTERNAL_ERROR))
195 # Workaround bug in make-4.3: https://savannah.gnu.org/bugs/?57676
196 $(BASE_DIR)/.br2-external.mk:;
198 # To make sure that the environment variable overrides the .config option,
199 # set this before including .config.
200 ifneq ($(BR2_DL_DIR),)
201 DL_DIR := $(BR2_DL_DIR)
203 ifneq ($(BR2_CCACHE_DIR),)
204 BR_CACHE_DIR := $(BR2_CCACHE_DIR)
207 # Need that early, before we scan packages
208 # Avoids doing the $(or...) everytime
209 BR_GRAPH_OUT := $(or $(BR2_GRAPH_OUT),pdf)
211 BUILD_DIR := $(BASE_DIR)/build
212 BINARIES_DIR := $(BASE_DIR)/images
213 BASE_TARGET_DIR := $(BASE_DIR)/target
214 PER_PACKAGE_DIR := $(BASE_DIR)/per-package
215 # initial definition so that 'make clean' works for most users, even without
216 # .config. HOST_DIR will be overwritten later when .config is included.
217 HOST_DIR := $(BASE_DIR)/host
218 GRAPHS_DIR := $(BASE_DIR)/graphs
220 LEGAL_INFO_DIR = $(BASE_DIR)/legal-info
221 REDIST_SOURCES_DIR_TARGET = $(LEGAL_INFO_DIR)/sources
222 REDIST_SOURCES_DIR_HOST = $(LEGAL_INFO_DIR)/host-sources
223 LICENSE_FILES_DIR_TARGET = $(LEGAL_INFO_DIR)/licenses
224 LICENSE_FILES_DIR_HOST = $(LEGAL_INFO_DIR)/host-licenses
225 LEGAL_MANIFEST_CSV_TARGET = $(LEGAL_INFO_DIR)/manifest.csv
226 LEGAL_MANIFEST_CSV_HOST = $(LEGAL_INFO_DIR)/host-manifest.csv
227 LEGAL_WARNINGS = $(LEGAL_INFO_DIR)/.warnings
228 LEGAL_REPORT = $(LEGAL_INFO_DIR)/README
230 CPE_UPDATES_DIR = $(BASE_DIR)/cpe-updates
232 BR2_CONFIG = $(CONFIG_DIR)/.config
234 # Pull in the user's configuration file
235 ifeq ($(filter $(noconfig_targets),$(MAKECMDGOALS)),)
236 -include $(BR2_CONFIG)
239 ifeq ($(BR2_PER_PACKAGE_DIRECTORIES),)
240 # Disable top-level parallel build if per-package directories is not
241 # used. Indeed, per-package directories is necessary to guarantee
242 # determinism and reproducibility with top-level parallel build.
246 # timezone and locale may affect build output
247 ifeq ($(BR2_REPRODUCIBLE),y)
253 # To put more focus on warnings, be less verbose as default
254 # Use 'make V=1' to see the full commands
255 ifeq ("$(origin V)", "command line")
256 KBUILD_VERBOSE = $(V)
258 ifndef KBUILD_VERBOSE
262 ifeq ($(KBUILD_VERBOSE),1)
272 # kconfig uses CONFIG_SHELL
273 CONFIG_SHELL := $(SHELL)
275 export SHELL CONFIG_SHELL Q KBUILD_VERBOSE
285 HOSTCC := $(shell which $(HOSTCC) || type -p $(HOSTCC) || echo gcc)
287 ifndef HOSTCC_NOCCACHE
288 HOSTCC_NOCCACHE := $(HOSTCC)
292 HOSTCXX := $(shell which $(HOSTCXX) || type -p $(HOSTCXX) || echo g++)
294 ifndef HOSTCXX_NOCCACHE
295 HOSTCXX_NOCCACHE := $(HOSTCXX)
310 HOSTOBJCOPY := objcopy
315 HOSTAR := $(shell which $(HOSTAR) || type -p $(HOSTAR) || echo ar)
316 HOSTAS := $(shell which $(HOSTAS) || type -p $(HOSTAS) || echo as)
317 HOSTCPP := $(shell which $(HOSTCPP) || type -p $(HOSTCPP) || echo cpp)
318 HOSTLD := $(shell which $(HOSTLD) || type -p $(HOSTLD) || echo ld)
319 HOSTLN := $(shell which $(HOSTLN) || type -p $(HOSTLN) || echo ln)
320 HOSTNM := $(shell which $(HOSTNM) || type -p $(HOSTNM) || echo nm)
321 HOSTOBJCOPY := $(shell which $(HOSTOBJCOPY) || type -p $(HOSTOBJCOPY) || echo objcopy)
322 HOSTRANLIB := $(shell which $(HOSTRANLIB) || type -p $(HOSTRANLIB) || echo ranlib)
323 SED := $(shell which sed || type -p sed) -i -e
325 export HOSTAR HOSTAS HOSTCC HOSTCXX HOSTLD
326 export HOSTCC_NOCCACHE HOSTCXX_NOCCACHE
328 # Determine the userland we are running on.
330 # Note that, despite its name, we are not interested in the actual
331 # architecture name. This is mostly used to determine whether some
332 # of the binary tools (e.g. pre-built external toolchains) can run
333 # on the current host. So we need to know if the userland we're
334 # running on can actually run those toolchains.
336 # For example, a 64-bit prebuilt toolchain will not run on a 64-bit
337 # kernel if the userland is 32-bit (e.g. in a chroot for example).
339 # So, we extract the first part of the tuple the host gcc was
340 # configured to generate code for; we assume this is our userland.
342 export HOSTARCH := $(shell LC_ALL=C $(HOSTCC_NOCCACHE) -v 2>&1 | \
343 sed -e '/^Target: \([^-]*\).*/!d' \
346 -e 's/sun4u/sparc64/' \
349 -e 's/ppc64/powerpc64/' \
350 -e 's/ppc/powerpc/' \
351 -e 's/macppc/powerpc/' \
354 # When adding a new host gcc version in Config.in,
355 # update the HOSTCC_MAX_VERSION variable:
356 HOSTCC_MAX_VERSION := 9
358 HOSTCC_VERSION := $(shell V=$$($(HOSTCC_NOCCACHE) --version | \
359 sed -n -r 's/^.* ([0-9]*)\.([0-9]*)\.([0-9]*)[ ]*.*/\1 \2/p'); \
360 [ "$${V%% *}" -le $(HOSTCC_MAX_VERSION) ] || V=$(HOSTCC_MAX_VERSION); \
363 # For gcc >= 5.x, we only need the major version.
364 ifneq ($(firstword $(HOSTCC_VERSION)),4)
365 HOSTCC_VERSION := $(firstword $(HOSTCC_VERSION))
368 ifeq ($(BR2_NEEDS_HOST_UTF8_LOCALE),y)
369 # First, we try to use the user's configured locale (as that's the
370 # language they'd expect messages to be displayed), then we favour
371 # a non language-specific locale like C.UTF-8 if one is available,
372 # so we sort with the C locale to get it at the top.
373 # This is guaranteed to not be empty, because of the check in
374 # support/dependencies/dependencies.sh
375 HOST_UTF8_LOCALE := $(shell \
376 ( echo $${LC_ALL:-$${LC_MESSAGES:-$${LANG}}}; \
377 locale -a 2>/dev/null | LC_ALL=C sort \
379 | grep -i -E 'utf-?8$$' \
381 HOST_UTF8_LOCALE_ENV := LC_ALL=$(HOST_UTF8_LOCALE)
384 # Make sure pkg-config doesn't look outside the buildroot tree
385 HOST_PKG_CONFIG_PATH := $(PKG_CONFIG_PATH)
386 unexport PKG_CONFIG_PATH
387 unexport PKG_CONFIG_SYSROOT_DIR
388 unexport PKG_CONFIG_LIBDIR
390 # Having DESTDIR set in the environment confuses the installation
391 # steps of some packages.
394 # Causes breakage with packages that needs host-ruby
397 # Compilation of perl-related packages will fail otherwise
400 include package/pkg-utils.mk
401 include package/doc-asciidoc.mk
403 ifeq ($(BR2_HAVE_DOT_CONFIG),y)
405 ################################################################################
407 # Hide troublesome environment variables from sub processes
409 ################################################################################
410 unexport CROSS_COMPILE
420 unexport GREP_OPTIONS
432 GNU_HOST_NAME := $(shell support/gnuconfig/config.guess)
437 # silent mode requested?
438 QUIET := $(if $(findstring s,$(filter-out --%,$(MAKEFLAGS))),-q)
440 # Strip off the annoying quoting
441 ARCH := $(call qstrip,$(BR2_ARCH))
442 NORMALIZED_ARCH := $(call qstrip,$(BR2_NORMALIZED_ARCH))
443 KERNEL_ARCH := $(call qstrip,$(BR2_NORMALIZED_ARCH))
445 ZCAT := $(call qstrip,$(BR2_ZCAT))
446 BZCAT := $(call qstrip,$(BR2_BZCAT))
447 XZCAT := $(call qstrip,$(BR2_XZCAT))
448 LZCAT := $(call qstrip,$(BR2_LZCAT))
449 TAR_OPTIONS = $(call qstrip,$(BR2_TAR_OPTIONS)) -xf
451 ifeq ($(BR2_PER_PACKAGE_DIRECTORIES),y)
452 HOST_DIR = $(if $(PKG),$(PER_PACKAGE_DIR)/$($(PKG)_NAME)/host,$(call qstrip,$(BR2_HOST_DIR)))
453 TARGET_DIR = $(if $(ROOTFS),$(ROOTFS_$(ROOTFS)_TARGET_DIR),$(if $(PKG),$(PER_PACKAGE_DIR)/$($(PKG)_NAME)/target,$(BASE_TARGET_DIR)))
455 HOST_DIR := $(call qstrip,$(BR2_HOST_DIR))
456 TARGET_DIR = $(if $(ROOTFS),$(ROOTFS_$(ROOTFS)_TARGET_DIR),$(BASE_TARGET_DIR))
459 ifneq ($(HOST_DIR),$(BASE_DIR)/host)
460 HOST_DIR_SYMLINK = $(BASE_DIR)/host
461 $(HOST_DIR_SYMLINK): | $(BASE_DIR)
462 ln -snf $(HOST_DIR) $(HOST_DIR_SYMLINK)
465 STAGING_DIR_SYMLINK = $(BASE_DIR)/staging
466 $(STAGING_DIR_SYMLINK): | $(BASE_DIR)
467 ln -snf $(STAGING_DIR) $(STAGING_DIR_SYMLINK)
469 # Quotes are needed for spaces and all in the original PATH content.
470 BR_PATH = "$(HOST_DIR)/bin:$(HOST_DIR)/sbin:$(PATH)"
472 # Location of a file giving a big fat warning that output/target
473 # should not be used as the root filesystem.
474 TARGET_DIR_WARNING_FILE = $(TARGET_DIR)/THIS_IS_NOT_YOUR_ROOT_FILESYSTEM
476 ifeq ($(BR2_CCACHE),y)
477 CCACHE = $(HOST_DIR)/bin/ccache
478 BR_CACHE_DIR ?= $(call qstrip,$(BR2_CCACHE_DIR))
480 HOSTCC = $(CCACHE) $(HOSTCC_NOCCACHE)
481 HOSTCXX = $(CCACHE) $(HOSTCXX_NOCCACHE)
482 export BR2_USE_CCACHE ?= 1
485 # Scripts in support/ or post-build scripts may need to reference
486 # these locations, so export them so it is easier to use
488 export BR2_REPRODUCIBLE
495 ################################################################################
497 # You should probably leave this stuff alone unless you know
498 # what you are doing.
500 ################################################################################
504 # Include legacy before the other things, because package .mk files
506 include Makefile.legacy
508 include system/system.mk
509 include package/Makefile.in
510 # arch/arch.mk must be after package/Makefile.in because it may need to
511 # complement variables defined therein, like BR_NO_CHECK_HASH_FOR.
513 include support/dependencies/dependencies.mk
515 include $(sort $(wildcard toolchain/*.mk))
516 include $(sort $(wildcard toolchain/*/*.mk))
518 ifeq ($(BR2_REPRODUCIBLE),y)
519 # If SOURCE_DATE_EPOCH has not been set then use the commit date, or the last
520 # release date if the source tree is not within a Git repository.
521 # See: https://reproducible-builds.org/specs/source-date-epoch/
522 BR2_VERSION_GIT_EPOCH := $(shell $(GIT) log -1 --format=%at 2> /dev/null)
523 export SOURCE_DATE_EPOCH ?= $(or $(BR2_VERSION_GIT_EPOCH),$(BR2_VERSION_EPOCH))
526 # Include the package override file if one has been provided in the
528 PACKAGE_OVERRIDE_FILE = $(call qstrip,$(BR2_PACKAGE_OVERRIDE_FILE))
529 ifneq ($(PACKAGE_OVERRIDE_FILE),)
530 -include $(PACKAGE_OVERRIDE_FILE)
533 include $(sort $(wildcard package/*/*.mk))
535 include boot/common.mk
536 include linux/linux.mk
539 # If using a br2-external tree, the BR2_EXTERNAL_$(NAME)_PATH variables
540 # are also present in the .config file. Since .config is included after
541 # we defined them in the Makefile, the values for those variables are
542 # quoted. We just include the generated Makefile fragment .br2-external.mk
543 # a third time, which will set those variables to the un-quoted values.
544 include $(BR2_EXTERNAL_FILE)
546 # Nothing to include if no BR2_EXTERNAL tree in use
547 include $(BR2_EXTERNAL_MKS)
549 # Now we are sure we have all the packages scanned and defined. We now
550 # check for each package in the list of enabled packages, that all its
551 # dependencies are indeed enabled.
553 # Only trigger the check for default builds. If the user forces building
554 # a package, even if not enabled in the configuration, we want to accept
555 # it. However; we also want to be able to force checking the dependencies
556 # if the user so desires. Forcing a dependency check is useful in the case
557 # of test-pkg, as we want to make sure during testing, that a package has
558 # all the dependencies selected in the config file.
560 ifeq ($(MAKECMDGOALS),)
561 BR_FORCE_CHECK_DEPENDENCIES = YES
564 ifeq ($(BR_FORCE_CHECK_DEPENDENCIES),YES)
566 define CHECK_ONE_DEPENDENCY
567 ifeq ($$($(2)_TYPE),target)
568 ifneq ($$($$($(2)_KCONFIG_VAR)),y)
569 $$(error $$($(2)_NAME) is in the dependency chain of $$($(1)_NAME) that \
570 has added it to its _DEPENDENCIES variable without selecting it or \
571 depending on it from Config.in)
576 $(foreach pkg,$(call UPPERCASE,$(PACKAGES)),\
577 $(foreach dep,$(call UPPERCASE,$($(pkg)_FINAL_ALL_DEPENDENCIES)),\
578 $(eval $(call CHECK_ONE_DEPENDENCY,$(pkg),$(dep))$(sep))))
582 $(BUILD_DIR)/buildroot-config/auto.conf: $(BR2_CONFIG)
583 $(MAKE1) $(EXTRAMAKEARGS) HOSTCC="$(HOSTCC_NOCCACHE)" HOSTCXX="$(HOSTCXX_NOCCACHE)" syncconfig
586 prepare: $(BUILD_DIR)/buildroot-config/auto.conf
587 @$(foreach s, $(call qstrip,$(BR2_ROOTFS_PRE_BUILD_SCRIPT)), \
588 $(call MESSAGE,"Executing pre-build script $(s)"); \
589 $(EXTRA_ENV) $(s) $(TARGET_DIR) $(call qstrip,$(BR2_ROOTFS_POST_SCRIPT_ARGS))$(sep))
592 world: target-post-image
596 @$(call MESSAGE,"Rendering the SDK relocatable")
597 PER_PACKAGE_DIR=$(PER_PACKAGE_DIR) $(TOPDIR)/support/scripts/fix-rpath host
598 PER_PACKAGE_DIR=$(PER_PACKAGE_DIR) $(TOPDIR)/support/scripts/fix-rpath staging
599 $(INSTALL) -m 755 $(TOPDIR)/support/misc/relocate-sdk.sh $(HOST_DIR)/relocate-sdk.sh
600 mkdir -p $(HOST_DIR)/share/buildroot
601 echo $(HOST_DIR) > $(HOST_DIR)/share/buildroot/sdk-location
603 BR2_SDK_PREFIX ?= $(GNU_TARGET_NAME)_sdk-buildroot
605 sdk: prepare-sdk $(BR2_TAR_HOST_DEPENDENCY)
606 @$(call MESSAGE,"Generating SDK tarball")
607 $(if $(BR2_SDK_PREFIX),,$(error BR2_SDK_PREFIX can not be empty))
608 $(Q)mkdir -p $(BINARIES_DIR)
609 $(TAR) czf "$(BINARIES_DIR)/$(BR2_SDK_PREFIX).tar.gz" \
610 --owner=0 --group=0 --numeric-owner \
611 --transform='s#^$(patsubst /%,%,$(HOST_DIR))#$(BR2_SDK_PREFIX)#' \
612 -C / $(patsubst /%,%,$(HOST_DIR))
614 RSYNC_VCS_EXCLUSIONS = \
615 --exclude .svn --exclude .git --exclude .hg --exclude .bzr \
618 # When stripping, obey to BR2_STRIP_EXCLUDE_DIRS and
619 # BR2_STRIP_EXCLUDE_FILES
620 STRIP_FIND_COMMON_CMD = \
622 $(if $(call qstrip,$(BR2_STRIP_EXCLUDE_DIRS)), \
623 \( $(call finddirclauses,$(TARGET_DIR),$(call qstrip,$(BR2_STRIP_EXCLUDE_DIRS))) \) \
626 $(if $(call qstrip,$(BR2_STRIP_EXCLUDE_FILES)), \
627 -not \( $(call findfileclauses,$(call qstrip,$(BR2_STRIP_EXCLUDE_FILES))) \) )
629 # Regular stripping for everything, except libpthread, ld-*.so and
631 # - libpthread.so: a non-stripped libpthread shared library is needed for
632 # proper debugging of pthread programs using gdb.
633 # - ld.so: a non-stripped dynamic linker library is needed for valgrind
634 # - kernel modules (*.ko): do not function properly when stripped like normal
635 # applications and libraries. Normally kernel modules are already excluded
636 # by the executable permission check, so the explicit exclusion is only
637 # done for kernel modules with incorrect permissions.
639 $(STRIP_FIND_COMMON_CMD) \
640 -type f \( -perm /111 -o -name '*.so*' \) \
641 -not \( $(call findfileclauses,libpthread*.so* ld-*.so* *.ko) \) \
644 # Special stripping (only debugging symbols) for libpthread and ld-*.so.
645 STRIP_FIND_SPECIAL_LIBS_CMD = \
646 $(STRIP_FIND_COMMON_CMD) \
647 \( -name 'ld-*.so*' -o -name 'libpthread*.so*' \) \
650 # Generate locale data.
651 ifeq ($(BR2_TOOLCHAIN_USES_GLIBC),y)
652 GLIBC_GENERATE_LOCALES = $(call qstrip,$(BR2_GENERATE_LOCALE))
653 ifneq ($(GLIBC_GENERATE_LOCALES),)
654 PACKAGES += host-localedef
656 define GENERATE_GLIBC_LOCALES
657 +$(MAKE) -f support/misc/gen-glibc-locales.mk \
658 ENDIAN=$(call LOWERCASE,$(BR2_ENDIAN)) \
659 LOCALES="$(GLIBC_GENERATE_LOCALES)" \
662 TARGET_FINALIZE_HOOKS += GENERATE_GLIBC_LOCALES
666 ifeq ($(BR2_ENABLE_LOCALE_PURGE),y)
667 LOCALE_WHITELIST = $(BUILD_DIR)/locales.nopurge
668 LOCALE_NOPURGE = $(call qstrip,$(BR2_ENABLE_LOCALE_WHITELIST))
670 # This piece of junk does the following:
671 # First collect the whitelist in a file.
672 # Then go over all the locale dirs and for each subdir, check if it exists
673 # in the whitelist file. If it doesn't, kill it.
674 # Finally, specifically for X11, regenerate locale.dir from the whitelist.
676 printf '%s\n' $(LOCALE_NOPURGE) locale-archive > $(LOCALE_WHITELIST)
678 for dir in $(addprefix $(TARGET_DIR),/usr/share/locale /usr/share/X11/locale /usr/lib/locale); \
680 if [ ! -d $$dir ]; then continue; fi; \
681 for langdir in $$dir/*; \
683 if [ -e "$${langdir}" ]; \
685 grep -qx "$${langdir##*/}" $(LOCALE_WHITELIST) || rm -rf $$langdir; \
689 if [ -d $(TARGET_DIR)/usr/share/X11/locale ]; \
691 for lang in $(LOCALE_NOPURGE); \
693 if [ -f $(TARGET_DIR)/usr/share/X11/locale/$$lang/XLC_LOCALE ]; \
695 echo "$$lang/XLC_LOCALE: $$lang"; \
697 done > $(TARGET_DIR)/usr/share/X11/locale/locale.dir; \
700 TARGET_FINALIZE_HOOKS += PURGE_LOCALES
703 $(TARGETS_ROOTFS): target-finalize
705 # Avoid the rootfs name leaking down the dependency chain
706 target-finalize: ROOTFS=
708 TARGET_DIR_FILES_LISTS = $(sort $(wildcard $(BUILD_DIR)/*/.files-list.txt))
709 HOST_DIR_FILES_LISTS = $(sort $(wildcard $(BUILD_DIR)/*/.files-list-host.txt))
710 STAGING_DIR_FILES_LISTS = $(sort $(wildcard $(BUILD_DIR)/*/.files-list-staging.txt))
712 .PHONY: host-finalize
713 host-finalize: $(PACKAGES) $(HOST_DIR) $(HOST_DIR_SYMLINK)
714 @$(call MESSAGE,"Finalizing host directory")
715 $(call per-package-rsync,$(sort $(PACKAGES)),host,$(HOST_DIR))
717 .PHONY: staging-finalize
718 staging-finalize: $(STAGING_DIR_SYMLINK)
720 .PHONY: target-finalize
721 target-finalize: $(PACKAGES) $(TARGET_DIR) host-finalize
722 @$(call MESSAGE,"Finalizing target directory")
723 $(call per-package-rsync,$(sort $(PACKAGES)),target,$(TARGET_DIR))
724 $(foreach hook,$(TARGET_FINALIZE_HOOKS),$($(hook))$(sep))
725 rm -rf $(TARGET_DIR)/usr/include $(TARGET_DIR)/usr/share/aclocal \
726 $(TARGET_DIR)/usr/lib/pkgconfig $(TARGET_DIR)/usr/share/pkgconfig \
727 $(TARGET_DIR)/usr/lib/cmake $(TARGET_DIR)/usr/share/cmake \
728 $(TARGET_DIR)/usr/lib/rpm $(TARGET_DIR)/usr/doc
729 find $(TARGET_DIR)/usr/{lib,share}/ -name '*.cmake' -print0 | xargs -0 rm -f
730 find $(TARGET_DIR)/lib/ $(TARGET_DIR)/usr/lib/ $(TARGET_DIR)/usr/libexec/ \
731 \( -name '*.a' -o -name '*.la' -o -name '*.prl' \) -print0 | xargs -0 rm -f
732 ifneq ($(BR2_PACKAGE_GDB),y)
733 rm -rf $(TARGET_DIR)/usr/share/gdb
735 ifneq ($(BR2_PACKAGE_BASH),y)
736 rm -rf $(TARGET_DIR)/usr/share/bash-completion
737 rm -rf $(TARGET_DIR)/etc/bash_completion.d
739 ifneq ($(BR2_PACKAGE_ZSH),y)
740 rm -rf $(TARGET_DIR)/usr/share/zsh
742 rm -rf $(TARGET_DIR)/usr/man $(TARGET_DIR)/usr/share/man
743 rm -rf $(TARGET_DIR)/usr/info $(TARGET_DIR)/usr/share/info
744 rm -rf $(TARGET_DIR)/usr/doc $(TARGET_DIR)/usr/share/doc
745 rm -rf $(TARGET_DIR)/usr/share/gtk-doc
746 rmdir $(TARGET_DIR)/usr/share 2>/dev/null || true
747 ifneq ($(BR2_ENABLE_DEBUG):$(BR2_STRIP_strip),y:)
748 rm -rf $(TARGET_DIR)/lib/debug $(TARGET_DIR)/usr/lib/debug
750 $(STRIP_FIND_CMD) | xargs -0 $(STRIPCMD) 2>/dev/null || true
751 $(STRIP_FIND_SPECIAL_LIBS_CMD) | xargs -0 -r $(STRIPCMD) $(STRIP_STRIP_DEBUG) 2>/dev/null || true
753 test -f $(TARGET_DIR)/etc/ld.so.conf && \
754 { echo "ERROR: we shouldn't have a /etc/ld.so.conf file"; exit 1; } || true
755 test -d $(TARGET_DIR)/etc/ld.so.conf.d && \
756 { echo "ERROR: we shouldn't have a /etc/ld.so.conf.d directory"; exit 1; } || true
757 mkdir -p $(TARGET_DIR)/etc
759 echo "NAME=Buildroot"; \
760 echo "VERSION=$(BR2_VERSION_FULL)"; \
761 echo "ID=buildroot"; \
762 echo "VERSION_ID=$(BR2_VERSION)"; \
763 echo "PRETTY_NAME=\"Buildroot $(BR2_VERSION)\"" \
764 ) > $(TARGET_DIR)/usr/lib/os-release
765 ln -sf ../usr/lib/os-release $(TARGET_DIR)/etc
767 @$(call MESSAGE,"Sanitizing RPATH in target tree")
768 PER_PACKAGE_DIR=$(PER_PACKAGE_DIR) $(TOPDIR)/support/scripts/fix-rpath target
770 # For a merged /usr, ensure that /lib, /bin and /sbin and their /usr
771 # counterparts are appropriately setup as symlinks ones to the others.
772 ifeq ($(BR2_ROOTFS_MERGED_USR),y)
774 $(foreach d, $(call qstrip,$(BR2_ROOTFS_OVERLAY)), \
775 @$(call MESSAGE,"Sanity check in overlay $(d)")$(sep) \
776 $(Q)not_merged_dirs="$$(support/scripts/check-merged-usr.sh $(d))"; \
777 test -n "$$not_merged_dirs" && { \
778 echo "ERROR: The overlay in $(d) is not" \
779 "using a merged /usr for the following directories:" \
786 $(foreach d, $(call qstrip,$(BR2_ROOTFS_OVERLAY)), \
787 @$(call MESSAGE,"Copying overlay $(d)")$(sep) \
788 $(Q)$(call SYSTEM_RSYNC,$(d),$(TARGET_DIR))$(sep))
790 $(Q)$(if $(TARGET_DIR_FILES_LISTS), \
791 cat $(TARGET_DIR_FILES_LISTS)) > $(BUILD_DIR)/packages-file-list.txt
792 $(Q)$(if $(HOST_DIR_FILES_LISTS), \
793 cat $(HOST_DIR_FILES_LISTS)) > $(BUILD_DIR)/packages-file-list-host.txt
794 $(Q)$(if $(STAGING_DIR_FILES_LISTS), \
795 cat $(STAGING_DIR_FILES_LISTS)) > $(BUILD_DIR)/packages-file-list-staging.txt
797 $(foreach s, $(call qstrip,$(BR2_ROOTFS_POST_BUILD_SCRIPT)), \
798 @$(call MESSAGE,"Executing post-build script $(s)")$(sep) \
799 $(Q)$(EXTRA_ENV) $(s) $(TARGET_DIR) $(call qstrip,$(BR2_ROOTFS_POST_SCRIPT_ARGS))$(sep))
801 touch $(TARGET_DIR)/usr
803 # Note: this will run in the filesystem context, so will use a copy
804 # of target/, not the real one, so the files are still available on
805 # re-builds (foo-rebuild, etc...)
806 define ROOTFS_RM_HWDB_DATA
807 rm -rf $(TARGET_DIR)/usr/lib/udev/hwdb.d/ $(TARGET_DIR)/etc/udev/hwdb.d/
809 ROOTFS_PRE_CMD_HOOKS += ROOTFS_RM_HWDB_DATA
811 .PHONY: target-post-image
812 target-post-image: $(TARGETS_ROOTFS) target-finalize staging-finalize
813 @rm -f $(ROOTFS_COMMON_TAR)
814 $(Q)mkdir -p $(BINARIES_DIR)
815 @$(foreach s, $(call qstrip,$(BR2_ROOTFS_POST_IMAGE_SCRIPT)), \
816 $(call MESSAGE,"Executing post-image script $(s)"); \
817 $(EXTRA_ENV) $(s) $(BINARIES_DIR) $(call qstrip,$(BR2_ROOTFS_POST_SCRIPT_ARGS))$(sep))
820 source: $(foreach p,$(PACKAGES),$(p)-all-source)
822 .PHONY: _external-deps external-deps
823 _external-deps: $(foreach p,$(PACKAGES),$(p)-all-external-deps)
825 @$(MAKE1) -Bs $(EXTRAMAKEARGS) _external-deps | sort -u
827 .PHONY: legal-info-clean
829 @rm -fr $(LEGAL_INFO_DIR)
831 .PHONY: legal-info-prepare
832 legal-info-prepare: $(LEGAL_INFO_DIR)
833 @$(call MESSAGE,"Buildroot $(BR2_VERSION_FULL) Collecting legal info")
834 @$(call legal-license-file,buildroot,buildroot,support/legal-info/buildroot.hash,COPYING,COPYING,HOST)
835 @$(call legal-manifest,TARGET,PACKAGE,VERSION,LICENSE,LICENSE FILES,SOURCE ARCHIVE,SOURCE SITE,DEPENDENCIES WITH LICENSES)
836 @$(call legal-manifest,HOST,PACKAGE,VERSION,LICENSE,LICENSE FILES,SOURCE ARCHIVE,SOURCE SITE,DEPENDENCIES WITH LICENSES)
837 @$(call legal-manifest,HOST,buildroot,$(BR2_VERSION_FULL),GPL-2.0+,COPYING,not saved,not saved)
838 @$(call legal-warning,the Buildroot source code has not been saved)
839 @cp $(BR2_CONFIG) $(LEGAL_INFO_DIR)/buildroot.config
842 legal-info: legal-info-clean legal-info-prepare $(foreach p,$(PACKAGES),$(p)-all-legal-info) \
843 $(REDIST_SOURCES_DIR_TARGET) $(REDIST_SOURCES_DIR_HOST)
844 @cat support/legal-info/README.header >>$(LEGAL_REPORT)
845 @if [ -r $(LEGAL_WARNINGS) ]; then \
846 cat support/legal-info/README.warnings-header \
847 $(LEGAL_WARNINGS) >>$(LEGAL_REPORT); \
848 cat $(LEGAL_WARNINGS); fi
849 @rm -f $(LEGAL_WARNINGS)
850 @(cd $(LEGAL_INFO_DIR); \
851 find * -type f -exec sha256sum {} + | LC_ALL=C sort -k2 \
852 >.legal-info.sha256; \
853 mv .legal-info.sha256 legal-info.sha256)
854 @echo "Legal info produced in $(LEGAL_INFO_DIR)"
858 @echo $(sort $(PACKAGES)) $(sort $(TARGETS_ROOTFS))
860 .PHONY: show-build-order
861 show-build-order: $(patsubst %,%-show-build-order,$(PACKAGES))
864 graph-build: $(O)/build/build-time.log
865 @install -d $(GRAPHS_DIR)
866 $(foreach o,name build duration,./support/scripts/graph-build-time \
867 --type=histogram --order=$(o) --input=$(<) \
868 --output=$(GRAPHS_DIR)/build.hist-$(o).$(BR_GRAPH_OUT) \
869 $(if $(BR2_GRAPH_ALT),--alternate-colors)$(sep))
870 $(foreach t,packages steps,./support/scripts/graph-build-time \
871 --type=pie-$(t) --input=$(<) \
872 --output=$(GRAPHS_DIR)/build.pie-$(t).$(BR_GRAPH_OUT) \
873 $(if $(BR2_GRAPH_ALT),--alternate-colors)$(sep))
874 ./support/scripts/graph-build-time --type=timeline --input=$(<) \
875 --output=$(GRAPHS_DIR)/build.timeline.$(BR_GRAPH_OUT) \
876 $(if $(BR2_GRAPH_ALT),--alternate-colors)
878 .PHONY: graph-depends-requirements
879 graph-depends-requirements:
880 @dot -? >/dev/null 2>&1 || \
881 { echo "ERROR: The 'dot' program from Graphviz is needed for graph-depends" >&2; exit 1; }
883 .PHONY: graph-depends
884 graph-depends: graph-depends-requirements
885 @$(INSTALL) -d $(GRAPHS_DIR)
886 @cd "$(CONFIG_DIR)"; \
887 $(TOPDIR)/support/scripts/graph-depends $(BR2_GRAPH_DEPS_OPTS) \
888 --direct -o $(GRAPHS_DIR)/$(@).dot
889 dot $(BR2_GRAPH_DOT_OPTS) -T$(BR_GRAPH_OUT) \
890 -o $(GRAPHS_DIR)/$(@).$(BR_GRAPH_OUT) \
891 $(GRAPHS_DIR)/$(@).dot
895 $(Q)mkdir -p $(GRAPHS_DIR)
896 $(Q)$(TOPDIR)/support/scripts/size-stats --builddir $(BASE_DIR) \
897 --graph $(GRAPHS_DIR)/graph-size.$(BR_GRAPH_OUT) \
898 --file-size-csv $(GRAPHS_DIR)/file-size-stats.csv \
899 --package-size-csv $(GRAPHS_DIR)/package-size-stats.csv \
900 $(BR2_GRAPH_SIZE_OPTS)
902 .PHONY: check-dependencies
904 @cd "$(CONFIG_DIR)"; \
905 $(TOPDIR)/support/scripts/graph-depends -C
910 $(info $(call clean-json, \
912 $(sort $(foreach i,$(PACKAGES) $(TARGETS_ROOTFS), \
914 $($(call UPPERCASE,$(i))_FINAL_RECURSIVE_DEPENDENCIES) \
917 $(call json-info,$(call UPPERCASE,$(p)))$(comma) \
924 @cd "$(CONFIG_DIR)" ; \
925 $(TOPDIR)/support/scripts/pkg-stats -c \
926 --json $(O)/pkg-stats.json \
927 --html $(O)/pkg-stats.html \
928 --nvd-path $(DL_DIR)/buildroot-nvd
932 $(Q)mkdir -p $(CPE_UPDATES_DIR)
933 $(Q)cd "$(CONFIG_DIR)" ; \
934 $(TOPDIR)/support/scripts/gen-missing-cpe \
935 --nvd-path $(DL_DIR)/buildroot-nvd \
936 --output $(CPE_UPDATES_DIR)
938 else # ifeq ($(BR2_HAVE_DOT_CONFIG),y)
940 # Some subdirectories are also package names. To avoid that "make linux"
941 # on an unconfigured tree produces "Nothing to be done", add an explicit
943 # Also for 'all' we error out and ask the user to configure first.
944 .PHONY: linux toolchain
945 linux toolchain all: outputmakefile
946 $(error Please configure Buildroot first (e.g. "make menuconfig"))
949 endif # ifeq ($(BR2_HAVE_DOT_CONFIG),y)
952 # ---------------------------------------------------------------------------
954 HOSTCFLAGS = $(CFLAGS_FOR_BUILD)
957 $(BUILD_DIR)/buildroot-config/%onf:
958 mkdir -p $(@D)/lxdialog
959 PKG_CONFIG_PATH="$(HOST_PKG_CONFIG_PATH)" $(MAKE) CC="$(HOSTCC_NOCCACHE)" HOSTCC="$(HOSTCC_NOCCACHE)" \
960 obj=$(@D) -C $(CONFIG) -f Makefile.br $(@F)
962 DEFCONFIG = $(call qstrip,$(BR2_DEFCONFIG))
964 # We don't want to fully expand BR2_DEFCONFIG here, so Kconfig will
965 # recognize that if it's still at its default $(CONFIG_DIR)/defconfig
966 COMMON_CONFIG_ENV = \
967 BR2_DEFCONFIG='$(call qstrip,$(value BR2_DEFCONFIG))' \
968 KCONFIG_AUTOCONFIG=$(BUILD_DIR)/buildroot-config/auto.conf \
969 KCONFIG_AUTOHEADER=$(BUILD_DIR)/buildroot-config/autoconf.h \
970 KCONFIG_TRISTATE=$(BUILD_DIR)/buildroot-config/tristate.config \
971 BR2_CONFIG=$(BR2_CONFIG) \
972 HOST_GCC_VERSION="$(HOSTCC_VERSION)" \
973 BASE_DIR=$(BASE_DIR) \
976 xconfig: $(BUILD_DIR)/buildroot-config/qconf outputmakefile
977 @$(COMMON_CONFIG_ENV) $< $(CONFIG_CONFIG_IN)
979 gconfig: $(BUILD_DIR)/buildroot-config/gconf outputmakefile
980 @$(COMMON_CONFIG_ENV) srctree=$(TOPDIR) $< $(CONFIG_CONFIG_IN)
982 menuconfig: $(BUILD_DIR)/buildroot-config/mconf outputmakefile
983 @$(COMMON_CONFIG_ENV) $< $(CONFIG_CONFIG_IN)
985 nconfig: $(BUILD_DIR)/buildroot-config/nconf outputmakefile
986 @$(COMMON_CONFIG_ENV) $< $(CONFIG_CONFIG_IN)
988 config: $(BUILD_DIR)/buildroot-config/conf outputmakefile
989 @$(COMMON_CONFIG_ENV) $< $(CONFIG_CONFIG_IN)
991 # For the config targets that automatically select options, we pass
992 # SKIP_LEGACY=y to disable the legacy options. However, in that case
993 # no values are set for the legacy options so a subsequent oldconfig
994 # will query them. Therefore, run an additional olddefconfig.
996 randconfig allyesconfig alldefconfig allnoconfig: $(BUILD_DIR)/buildroot-config/conf outputmakefile
997 @$(COMMON_CONFIG_ENV) SKIP_LEGACY=y $< --$@ $(CONFIG_CONFIG_IN)
998 @$(COMMON_CONFIG_ENV) $< --olddefconfig $(CONFIG_CONFIG_IN) >/dev/null
1000 randpackageconfig allyespackageconfig allnopackageconfig: $(BUILD_DIR)/buildroot-config/conf outputmakefile
1001 @grep -v BR2_PACKAGE_ $(BR2_CONFIG) > $(CONFIG_DIR)/.config.nopkg
1002 @$(COMMON_CONFIG_ENV) SKIP_LEGACY=y \
1003 KCONFIG_ALLCONFIG=$(CONFIG_DIR)/.config.nopkg \
1004 $< --$(subst package,,$@) $(CONFIG_CONFIG_IN)
1005 @rm -f $(CONFIG_DIR)/.config.nopkg
1006 @$(COMMON_CONFIG_ENV) $< --olddefconfig $(CONFIG_CONFIG_IN) >/dev/null
1008 oldconfig syncconfig olddefconfig: $(BUILD_DIR)/buildroot-config/conf outputmakefile
1009 @$(COMMON_CONFIG_ENV) $< --$@ $(CONFIG_CONFIG_IN)
1011 defconfig: $(BUILD_DIR)/buildroot-config/conf outputmakefile
1012 @$(COMMON_CONFIG_ENV) $< --defconfig$(if $(DEFCONFIG),=$(DEFCONFIG)) $(CONFIG_CONFIG_IN)
1014 %_defconfig: $(BUILD_DIR)/buildroot-config/conf outputmakefile
1018 $(call reverse,$(TOPDIR) $(BR2_EXTERNAL_DIRS)), \
1019 $(wildcard $(d)/configs/$@) \
1022 $(error "Can't find $@") \
1024 $(COMMON_CONFIG_ENV) BR2_DEFCONFIG=$${defconfig} \
1025 $< --defconfig=$${defconfig} $(CONFIG_CONFIG_IN)
1027 update-defconfig: savedefconfig
1029 savedefconfig: $(BUILD_DIR)/buildroot-config/conf outputmakefile
1030 @$(COMMON_CONFIG_ENV) $< \
1031 --savedefconfig=$(if $(DEFCONFIG),$(DEFCONFIG),$(CONFIG_DIR)/defconfig) \
1033 @$(SED) '/^BR2_DEFCONFIG=/d' $(if $(DEFCONFIG),$(DEFCONFIG),$(CONFIG_DIR)/defconfig)
1035 .PHONY: defconfig savedefconfig update-defconfig
1037 ################################################################################
1039 # Cleanup and misc junk
1041 ################################################################################
1043 # staging and target directories do NOT list these as
1044 # dependencies anywhere else
1045 $(BASE_DIR) $(BUILD_DIR) $(BASE_TARGET_DIR) $(HOST_DIR) $(BINARIES_DIR) $(LEGAL_INFO_DIR) $(REDIST_SOURCES_DIR_TARGET) $(REDIST_SOURCES_DIR_HOST) $(PER_PACKAGE_DIR):
1048 # outputmakefile generates a Makefile in the output directory, if using a
1049 # separate output directory. This allows convenient use of make in the
1051 .PHONY: outputmakefile
1053 ifeq ($(NEED_WRAPPER),y)
1054 $(Q)$(TOPDIR)/support/scripts/mkmakefile $(TOPDIR) $(O)
1057 # printvars prints all the variables currently defined in our
1058 # Makefiles. Alternatively, if a non-empty VARS variable is passed,
1059 # only the variables matching the make pattern passed in VARS are
1061 # show-vars does the same, but as a JSON dictionnary.
1063 # Note: we iterate of .VARIABLES and filter each variable individually,
1064 # to workaround a bug in make 4.3; see https://savannah.gnu.org/bugs/?59093
1068 $(error Please pass a non-empty VARS to 'make printvars')
1072 $(sort $(foreach X, $(.VARIABLES), $(filter $(VARS),$(X)))), \
1073 $(if $(filter-out environment% default automatic, \
1075 $(if $(QUOTED_VARS),\
1076 $(info $V='$(subst ','\'',$(if $(RAW_VARS),$(value $V),$($V)))'), \
1077 $(info $V=$(if $(RAW_VARS),$(value $V),$($V))))))
1078 # ')))) # Syntax colouring...
1080 # See details above, same as for printvars
1086 $(call clean-json, { \
1089 $(and $(filter $(VARS),$(V)) \
1091 $(filter-out environment% default automatic, $(origin $V)) \
1094 "expanded": $(call mk-json-str,$($V))$(comma) \
1095 "raw": $(call mk-json-str,$(value $V)) \
1106 rm -rf $(BASE_TARGET_DIR) $(BINARIES_DIR) $(HOST_DIR) $(HOST_DIR_SYMLINK) \
1107 $(BUILD_DIR) $(BASE_DIR)/staging \
1108 $(LEGAL_INFO_DIR) $(GRAPHS_DIR) $(PER_PACKAGE_DIR) $(CPE_UPDATES_DIR) \
1113 ifeq ($(O),$(CURDIR)/output)
1116 rm -rf $(TOPDIR)/dl $(BR2_CONFIG) $(CONFIG_DIR)/.config.old $(CONFIG_DIR)/..config.tmp \
1117 $(CONFIG_DIR)/.auto.deps $(BASE_DIR)/.br2-external.*
1122 @echo ' clean - delete all files created by build'
1123 @echo ' distclean - delete all non-source files (including .config)'
1126 @echo ' all - make world'
1127 @echo ' toolchain - build toolchain'
1128 @echo ' sdk - build relocatable SDK'
1130 @echo 'Configuration:'
1131 @echo ' menuconfig - interactive curses-based configurator'
1132 @echo ' nconfig - interactive ncurses-based configurator'
1133 @echo ' xconfig - interactive Qt-based configurator'
1134 @echo ' gconfig - interactive GTK-based configurator'
1135 @echo ' oldconfig - resolve any unresolved symbols in .config'
1136 @echo ' syncconfig - Same as oldconfig, but quietly, additionally update deps'
1137 @echo ' olddefconfig - Same as syncconfig but sets new symbols to their default value'
1138 @echo ' randconfig - New config with random answer to all options'
1139 @echo ' defconfig - New config with default answer to all options;'
1140 @echo ' BR2_DEFCONFIG, if set on the command line, is used as input'
1141 @echo ' savedefconfig - Save current config to BR2_DEFCONFIG (minimal config)'
1142 @echo ' update-defconfig - Same as savedefconfig'
1143 @echo ' allyesconfig - New config where all options are accepted with yes'
1144 @echo ' allnoconfig - New config where all options are answered with no'
1145 @echo ' alldefconfig - New config where all options are set to default'
1146 @echo ' randpackageconfig - New config with random answer to package options'
1147 @echo ' allyespackageconfig - New config where pkg options are accepted with yes'
1148 @echo ' allnopackageconfig - New config where package options are answered with no'
1150 @echo 'Package-specific:'
1151 @echo ' <pkg> - Build and install <pkg> and all its dependencies'
1152 @echo ' <pkg>-source - Only download the source files for <pkg>'
1153 @echo ' <pkg>-extract - Extract <pkg> sources'
1154 @echo ' <pkg>-patch - Apply patches to <pkg>'
1155 @echo ' <pkg>-depends - Build <pkg>'\''s dependencies'
1156 @echo ' <pkg>-configure - Build <pkg> up to the configure step'
1157 @echo ' <pkg>-build - Build <pkg> up to the build step'
1158 @echo ' <pkg>-show-info - generate info about <pkg>, as a JSON blurb'
1159 @echo ' <pkg>-show-depends - List packages on which <pkg> depends'
1160 @echo ' <pkg>-show-rdepends - List packages which have <pkg> as a dependency'
1161 @echo ' <pkg>-show-recursive-depends'
1162 @echo ' - Recursively list packages on which <pkg> depends'
1163 @echo ' <pkg>-show-recursive-rdepends'
1164 @echo ' - Recursively list packages which have <pkg> as a dependency'
1165 @echo ' <pkg>-graph-depends - Generate a graph of <pkg>'\''s dependencies'
1166 @echo ' <pkg>-graph-rdepends - Generate a graph of <pkg>'\''s reverse dependencies'
1167 @echo ' <pkg>-dirclean - Remove <pkg> build directory'
1168 @echo ' <pkg>-reconfigure - Restart the build from the configure step'
1169 @echo ' <pkg>-rebuild - Restart the build from the build step'
1170 @echo ' <pkg>-reinstall - Restart the build from the install step'
1171 $(foreach p,$(HELP_PACKAGES), \
1173 @echo '$($(p)_NAME):' $(sep) \
1174 $($(p)_HELP_CMDS)$(sep))
1176 @echo 'Documentation:'
1177 @echo ' manual - build manual in all formats'
1178 @echo ' manual-html - build manual in HTML'
1179 @echo ' manual-split-html - build manual in split HTML'
1180 @echo ' manual-pdf - build manual in PDF'
1181 @echo ' manual-text - build manual in text'
1182 @echo ' manual-epub - build manual in ePub'
1183 @echo ' graph-build - generate graphs of the build times'
1184 @echo ' graph-depends - generate graph of the dependency tree'
1185 @echo ' graph-size - generate stats of the filesystem size'
1186 @echo ' list-defconfigs - list all defconfigs (pre-configured minimal systems)'
1188 @echo 'Miscellaneous:'
1189 @echo ' source - download all sources needed for offline-build'
1190 @echo ' external-deps - list external packages used'
1191 @echo ' legal-info - generate info about license compliance'
1192 @echo ' show-info - generate info about packages, as a JSON blurb'
1193 @echo ' pkg-stats - generate info about packages as JSON and HTML'
1194 @echo ' missing-cpe - generate XML snippets for missing CPE identifiers'
1195 @echo ' printvars - dump internal variables selected with VARS=...'
1196 @echo ' show-vars - dump all internal variables as a JSON blurb; use VARS=...'
1197 @echo ' to limit the list to variables names matching that pattern'
1199 @echo ' make V=0|1 - 0 => quiet build (default), 1 => verbose build'
1200 @echo ' make O=dir - Locate all output files in "dir", including .config'
1202 @echo 'For further details, see README, generate the Buildroot manual, or consult'
1203 @echo 'it on-line at http://buildroot.org/docs.html'
1206 # List the defconfig files
1207 # $(1): base directory
1208 # $(2): br2-external name, empty for bundled
1209 define list-defconfigs
1211 for defconfig in $(1)/configs/*_defconfig; do \
1212 [ -f "$${defconfig}" ] || continue; \
1213 if $${first}; then \
1214 if [ "$(2)" ]; then \
1215 printf 'External configs in "$(call qstrip,$(2))":\n'; \
1217 printf "Built-in configs:\n"; \
1221 defconfig="$${defconfig##*/}"; \
1222 printf " %-35s - Build for %s\n" "$${defconfig}" "$${defconfig%_defconfig}"; \
1224 $${first} || printf "\n"
1227 # We iterate over BR2_EXTERNAL_NAMES rather than BR2_EXTERNAL_DIRS,
1228 # because we want to display the name of the br2-external tree.
1229 .PHONY: list-defconfigs
1231 $(call list-defconfigs,$(TOPDIR))
1232 $(foreach name,$(BR2_EXTERNAL_NAMES),\
1233 $(call list-defconfigs,$(BR2_EXTERNAL_$(name)_PATH),\
1234 $(BR2_EXTERNAL_$(name)_DESC))$(sep))
1236 release: OUT = buildroot-$(BR2_VERSION)
1238 # Create release tarballs. We need to fiddle a bit to add the generated
1239 # documentation to the git output
1241 git archive --format=tar --prefix=$(OUT)/ HEAD > $(OUT).tar
1242 $(MAKE) O=$(OUT) manual-html manual-text manual-pdf
1243 $(MAKE) O=$(OUT) distclean
1244 tar rf $(OUT).tar $(OUT)
1245 gzip -9 -c < $(OUT).tar > $(OUT).tar.gz
1246 xz -9 -c < $(OUT).tar > $(OUT).tar.xz
1247 rm -rf $(OUT) $(OUT).tar
1250 @echo $(BR2_VERSION_FULL)
1253 $(Q)./utils/check-package `git ls-tree -r --name-only HEAD` \
1254 --ignore-list=$(TOPDIR)/.checkpackageignore
1256 .PHONY: .checkpackageignore
1257 .checkpackageignore:
1258 $(Q)./utils/check-package --failed-only `git ls-tree -r --name-only HEAD` \
1259 > .checkpackageignore
1261 include docs/manual/manual.mk
1262 -include $(foreach dir,$(BR2_EXTERNAL_DIRS),$(sort $(wildcard $(dir)/docs/*/*.mk)))
1264 .PHONY: $(noconfig_targets)
1266 endif #umask / $(CURDIR) / $(O)