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 := 2023.11-git
94 # Actual time the release is cut (for reproducible builds)
95 BR2_VERSION_EPOCH = 1694030000
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 PARALLEL_JOBS=$(PARALLEL_JOBS) \
598 PER_PACKAGE_DIR=$(PER_PACKAGE_DIR) \
599 $(TOPDIR)/support/scripts/fix-rpath host
600 PARALLEL_JOBS=$(PARALLEL_JOBS) \
601 PER_PACKAGE_DIR=$(PER_PACKAGE_DIR) \
602 $(TOPDIR)/support/scripts/fix-rpath staging
603 $(INSTALL) -m 755 $(TOPDIR)/support/misc/relocate-sdk.sh $(HOST_DIR)/relocate-sdk.sh
604 mkdir -p $(HOST_DIR)/share/buildroot
605 echo $(HOST_DIR) > $(HOST_DIR)/share/buildroot/sdk-location
607 BR2_SDK_PREFIX ?= $(GNU_TARGET_NAME)_sdk-buildroot
609 sdk: prepare-sdk $(BR2_TAR_HOST_DEPENDENCY)
610 @$(call MESSAGE,"Generating SDK tarball")
611 $(if $(BR2_SDK_PREFIX),,$(error BR2_SDK_PREFIX can not be empty))
612 $(Q)mkdir -p $(BINARIES_DIR)
613 $(TAR) czf "$(BINARIES_DIR)/$(BR2_SDK_PREFIX).tar.gz" \
614 --owner=0 --group=0 --numeric-owner \
615 --transform='s#^$(patsubst /%,%,$(HOST_DIR))#$(BR2_SDK_PREFIX)#' \
616 -C / $(patsubst /%,%,$(HOST_DIR))
618 RSYNC_VCS_EXCLUSIONS = \
619 --exclude .svn --exclude .git --exclude .hg --exclude .bzr \
622 # When stripping, obey to BR2_STRIP_EXCLUDE_DIRS and
623 # BR2_STRIP_EXCLUDE_FILES
624 STRIP_FIND_COMMON_CMD = \
626 $(if $(call qstrip,$(BR2_STRIP_EXCLUDE_DIRS)), \
627 \( $(call finddirclauses,$(TARGET_DIR),$(call qstrip,$(BR2_STRIP_EXCLUDE_DIRS))) \) \
630 $(if $(call qstrip,$(BR2_STRIP_EXCLUDE_FILES)), \
631 -not \( $(call findfileclauses,$(call qstrip,$(BR2_STRIP_EXCLUDE_FILES))) \) )
633 # Regular stripping for everything, except libpthread, ld-*.so and
635 # - libpthread.so: a non-stripped libpthread shared library is needed for
636 # proper debugging of pthread programs using gdb.
637 # - ld.so: a non-stripped dynamic linker library is needed for valgrind
638 # - kernel modules (*.ko): do not function properly when stripped like normal
639 # applications and libraries. Normally kernel modules are already excluded
640 # by the executable permission check, so the explicit exclusion is only
641 # done for kernel modules with incorrect permissions.
643 $(STRIP_FIND_COMMON_CMD) \
644 -type f \( -perm /111 -o -name '*.so*' \) \
645 -not \( $(call findfileclauses,libpthread*.so* ld-*.so* *.ko) \) \
648 # Special stripping (only debugging symbols) for libpthread and ld-*.so.
649 STRIP_FIND_SPECIAL_LIBS_CMD = \
650 $(STRIP_FIND_COMMON_CMD) \
651 \( -name 'ld-*.so*' -o -name 'libpthread*.so*' \) \
654 # Generate locale data.
655 ifeq ($(BR2_TOOLCHAIN_USES_GLIBC),y)
656 GLIBC_GENERATE_LOCALES = $(call qstrip,$(BR2_GENERATE_LOCALE))
657 ifneq ($(GLIBC_GENERATE_LOCALES),)
658 PACKAGES += host-localedef
660 define GENERATE_GLIBC_LOCALES
661 +$(MAKE) -f support/misc/gen-glibc-locales.mk \
662 ENDIAN=$(call LOWERCASE,$(BR2_ENDIAN)) \
663 LOCALES="$(GLIBC_GENERATE_LOCALES)" \
666 TARGET_FINALIZE_HOOKS += GENERATE_GLIBC_LOCALES
670 ifeq ($(BR2_ENABLE_LOCALE_PURGE),y)
671 LOCALE_WHITELIST = $(BUILD_DIR)/locales.nopurge
672 LOCALE_NOPURGE = $(call qstrip,$(BR2_ENABLE_LOCALE_WHITELIST))
674 # This piece of junk does the following:
675 # First collect the whitelist in a file.
676 # Then go over all the locale dirs and for each subdir, check if it exists
677 # in the whitelist file. If it doesn't, kill it.
678 # Finally, specifically for X11, regenerate locale.dir from the whitelist.
680 printf '%s\n' $(LOCALE_NOPURGE) locale-archive > $(LOCALE_WHITELIST)
682 for dir in $(addprefix $(TARGET_DIR),/usr/share/locale /usr/share/X11/locale /usr/lib/locale); \
684 if [ ! -d $$dir ]; then continue; fi; \
685 for langdir in $$dir/*; \
687 if [ -e "$${langdir}" ]; \
689 grep -qx "$${langdir##*/}" $(LOCALE_WHITELIST) || rm -rf $$langdir; \
693 if [ -d $(TARGET_DIR)/usr/share/X11/locale ]; \
695 for lang in $(LOCALE_NOPURGE); \
697 if [ -f $(TARGET_DIR)/usr/share/X11/locale/$$lang/XLC_LOCALE ]; \
699 echo "$$lang/XLC_LOCALE: $$lang"; \
701 done > $(TARGET_DIR)/usr/share/X11/locale/locale.dir; \
704 TARGET_FINALIZE_HOOKS += PURGE_LOCALES
707 $(TARGETS_ROOTFS): target-finalize
709 # Avoid the rootfs name leaking down the dependency chain
710 target-finalize: ROOTFS=
712 TARGET_DIR_FILES_LISTS = $(sort $(wildcard $(BUILD_DIR)/*/.files-list.txt))
713 HOST_DIR_FILES_LISTS = $(sort $(wildcard $(BUILD_DIR)/*/.files-list-host.txt))
714 STAGING_DIR_FILES_LISTS = $(sort $(wildcard $(BUILD_DIR)/*/.files-list-staging.txt))
716 .PHONY: host-finalize
717 host-finalize: $(PACKAGES) $(HOST_DIR) $(HOST_DIR_SYMLINK)
718 @$(call MESSAGE,"Finalizing host directory")
719 $(call per-package-rsync,$(sort $(PACKAGES)),host,$(HOST_DIR))
721 .PHONY: staging-finalize
722 staging-finalize: $(STAGING_DIR_SYMLINK)
724 .PHONY: target-finalize
725 target-finalize: $(PACKAGES) $(TARGET_DIR) host-finalize
726 @$(call MESSAGE,"Finalizing target directory")
727 $(call per-package-rsync,$(sort $(PACKAGES)),target,$(TARGET_DIR))
728 $(foreach hook,$(TARGET_FINALIZE_HOOKS),$($(hook))$(sep))
729 rm -rf $(TARGET_DIR)/usr/include $(TARGET_DIR)/usr/share/aclocal \
730 $(TARGET_DIR)/usr/lib/pkgconfig $(TARGET_DIR)/usr/share/pkgconfig \
731 $(TARGET_DIR)/usr/lib/cmake $(TARGET_DIR)/usr/share/cmake \
732 $(TARGET_DIR)/usr/lib/rpm $(TARGET_DIR)/usr/doc
733 find $(TARGET_DIR)/usr/{lib,share}/ -name '*.cmake' -print0 | xargs -0 rm -f
734 find $(TARGET_DIR)/lib/ $(TARGET_DIR)/usr/lib/ $(TARGET_DIR)/usr/libexec/ \
735 \( -name '*.a' -o -name '*.la' -o -name '*.prl' \) -print0 | xargs -0 rm -f
736 ifneq ($(BR2_PACKAGE_GDB),y)
737 rm -rf $(TARGET_DIR)/usr/share/gdb
739 ifneq ($(BR2_PACKAGE_BASH),y)
740 rm -rf $(TARGET_DIR)/usr/share/bash-completion
741 rm -rf $(TARGET_DIR)/etc/bash_completion.d
743 ifneq ($(BR2_PACKAGE_ZSH),y)
744 rm -rf $(TARGET_DIR)/usr/share/zsh
746 rm -rf $(TARGET_DIR)/usr/man $(TARGET_DIR)/usr/share/man
747 rm -rf $(TARGET_DIR)/usr/info $(TARGET_DIR)/usr/share/info
748 rm -rf $(TARGET_DIR)/usr/doc $(TARGET_DIR)/usr/share/doc
749 rm -rf $(TARGET_DIR)/usr/share/gtk-doc
750 rmdir $(TARGET_DIR)/usr/share 2>/dev/null || true
751 ifneq ($(BR2_ENABLE_DEBUG):$(BR2_STRIP_strip),y:)
752 rm -rf $(TARGET_DIR)/lib/debug $(TARGET_DIR)/usr/lib/debug
754 $(STRIP_FIND_CMD) | xargs -0 $(STRIPCMD) 2>/dev/null || true
755 $(STRIP_FIND_SPECIAL_LIBS_CMD) | xargs -0 -r $(STRIPCMD) $(STRIP_STRIP_DEBUG) 2>/dev/null || true
757 test -f $(TARGET_DIR)/etc/ld.so.conf && \
758 { echo "ERROR: we shouldn't have a /etc/ld.so.conf file"; exit 1; } || true
759 test -d $(TARGET_DIR)/etc/ld.so.conf.d && \
760 { echo "ERROR: we shouldn't have a /etc/ld.so.conf.d directory"; exit 1; } || true
761 mkdir -p $(TARGET_DIR)/etc
763 echo "NAME=Buildroot"; \
764 echo "VERSION=$(BR2_VERSION_FULL)"; \
765 echo "ID=buildroot"; \
766 echo "VERSION_ID=$(BR2_VERSION)"; \
767 echo "PRETTY_NAME=\"Buildroot $(BR2_VERSION)\"" \
768 ) > $(TARGET_DIR)/usr/lib/os-release
769 ln -sf ../usr/lib/os-release $(TARGET_DIR)/etc
771 @$(call MESSAGE,"Sanitizing RPATH in target tree")
772 PARALLEL_JOBS=$(PARALLEL_JOBS) \
773 PER_PACKAGE_DIR=$(PER_PACKAGE_DIR) \
774 $(TOPDIR)/support/scripts/fix-rpath target
776 # For a merged /usr, ensure that /lib, /bin and /sbin and their /usr
777 # counterparts are appropriately setup as symlinks ones to the others.
778 ifeq ($(BR2_ROOTFS_MERGED_USR),y)
780 $(foreach d, $(call qstrip,$(BR2_ROOTFS_OVERLAY)), \
781 @$(call MESSAGE,"Sanity check in overlay $(d)")$(sep) \
782 $(Q)not_merged_dirs="$$(support/scripts/check-merged-usr.sh $(d))"; \
783 test -n "$$not_merged_dirs" && { \
784 echo "ERROR: The overlay in $(d) is not" \
785 "using a merged /usr for the following directories:" \
792 $(foreach d, $(call qstrip,$(BR2_ROOTFS_OVERLAY)), \
793 @$(call MESSAGE,"Copying overlay $(d)")$(sep) \
794 $(Q)$(call SYSTEM_RSYNC,$(d),$(TARGET_DIR))$(sep))
796 $(Q)$(if $(TARGET_DIR_FILES_LISTS), \
797 cat $(TARGET_DIR_FILES_LISTS)) > $(BUILD_DIR)/packages-file-list.txt
798 $(Q)$(if $(HOST_DIR_FILES_LISTS), \
799 cat $(HOST_DIR_FILES_LISTS)) > $(BUILD_DIR)/packages-file-list-host.txt
800 $(Q)$(if $(STAGING_DIR_FILES_LISTS), \
801 cat $(STAGING_DIR_FILES_LISTS)) > $(BUILD_DIR)/packages-file-list-staging.txt
803 $(foreach s, $(call qstrip,$(BR2_ROOTFS_POST_BUILD_SCRIPT)), \
804 @$(call MESSAGE,"Executing post-build script $(s)")$(sep) \
805 $(Q)$(EXTRA_ENV) $(s) $(TARGET_DIR) $(call qstrip,$(BR2_ROOTFS_POST_SCRIPT_ARGS))$(sep))
807 touch $(TARGET_DIR)/usr
809 # Note: this will run in the filesystem context, so will use a copy
810 # of target/, not the real one, so the files are still available on
811 # re-builds (foo-rebuild, etc...)
812 define ROOTFS_RM_HWDB_DATA
813 rm -rf $(TARGET_DIR)/usr/lib/udev/hwdb.d/ $(TARGET_DIR)/etc/udev/hwdb.d/
815 ROOTFS_PRE_CMD_HOOKS += ROOTFS_RM_HWDB_DATA
817 .PHONY: target-post-image
818 target-post-image: $(TARGETS_ROOTFS) target-finalize staging-finalize
819 @rm -f $(ROOTFS_COMMON_TAR)
820 $(Q)mkdir -p $(BINARIES_DIR)
821 @$(foreach s, $(call qstrip,$(BR2_ROOTFS_POST_IMAGE_SCRIPT)), \
822 $(call MESSAGE,"Executing post-image script $(s)"); \
823 $(EXTRA_ENV) $(s) $(BINARIES_DIR) $(call qstrip,$(BR2_ROOTFS_POST_SCRIPT_ARGS))$(sep))
826 source: $(foreach p,$(PACKAGES),$(p)-all-source)
828 .PHONY: _external-deps external-deps
829 _external-deps: $(foreach p,$(PACKAGES),$(p)-all-external-deps)
831 @$(MAKE1) -Bs $(EXTRAMAKEARGS) _external-deps | sort -u
833 .PHONY: legal-info-clean
835 @rm -fr $(LEGAL_INFO_DIR)
837 .PHONY: legal-info-prepare
838 legal-info-prepare: $(LEGAL_INFO_DIR)
839 @$(call MESSAGE,"Buildroot $(BR2_VERSION_FULL) Collecting legal info")
840 @$(call legal-license-file,buildroot,buildroot,support/legal-info/buildroot.hash,COPYING,COPYING,HOST)
841 @$(call legal-manifest,TARGET,PACKAGE,VERSION,LICENSE,LICENSE FILES,SOURCE ARCHIVE,SOURCE SITE,DEPENDENCIES WITH LICENSES)
842 @$(call legal-manifest,HOST,PACKAGE,VERSION,LICENSE,LICENSE FILES,SOURCE ARCHIVE,SOURCE SITE,DEPENDENCIES WITH LICENSES)
843 @$(call legal-manifest,HOST,buildroot,$(BR2_VERSION_FULL),GPL-2.0+,COPYING,not saved,not saved)
844 @$(call legal-warning,the Buildroot source code has not been saved)
845 @cp $(BR2_CONFIG) $(LEGAL_INFO_DIR)/buildroot.config
848 legal-info: legal-info-clean legal-info-prepare $(foreach p,$(PACKAGES),$(p)-all-legal-info) \
849 $(REDIST_SOURCES_DIR_TARGET) $(REDIST_SOURCES_DIR_HOST)
850 @cat support/legal-info/README.header >>$(LEGAL_REPORT)
851 @if [ -r $(LEGAL_WARNINGS) ]; then \
852 cat support/legal-info/README.warnings-header \
853 $(LEGAL_WARNINGS) >>$(LEGAL_REPORT); \
854 cat $(LEGAL_WARNINGS); fi
855 @rm -f $(LEGAL_WARNINGS)
856 @(cd $(LEGAL_INFO_DIR); \
857 find * -type f -exec sha256sum {} + | LC_ALL=C sort -k2 \
858 >.legal-info.sha256; \
859 mv .legal-info.sha256 legal-info.sha256)
860 @echo "Legal info produced in $(LEGAL_INFO_DIR)"
864 @echo $(sort $(PACKAGES)) $(sort $(TARGETS_ROOTFS))
866 .PHONY: show-build-order
867 show-build-order: $(patsubst %,%-show-build-order,$(PACKAGES))
870 graph-build: $(O)/build/build-time.log
871 @install -d $(GRAPHS_DIR)
872 $(foreach o,name build duration,./support/scripts/graph-build-time \
873 --type=histogram --order=$(o) --input=$(<) \
874 --output=$(GRAPHS_DIR)/build.hist-$(o).$(BR_GRAPH_OUT) \
875 $(if $(BR2_GRAPH_ALT),--alternate-colors)$(sep))
876 $(foreach t,packages steps,./support/scripts/graph-build-time \
877 --type=pie-$(t) --input=$(<) \
878 --output=$(GRAPHS_DIR)/build.pie-$(t).$(BR_GRAPH_OUT) \
879 $(if $(BR2_GRAPH_ALT),--alternate-colors)$(sep))
880 ./support/scripts/graph-build-time --type=timeline --input=$(<) \
881 --output=$(GRAPHS_DIR)/build.timeline.$(BR_GRAPH_OUT) \
882 $(if $(BR2_GRAPH_ALT),--alternate-colors)
884 .PHONY: graph-depends-requirements
885 graph-depends-requirements:
886 @dot -? >/dev/null 2>&1 || \
887 { echo "ERROR: The 'dot' program from Graphviz is needed for graph-depends" >&2; exit 1; }
889 .PHONY: graph-depends
890 graph-depends: graph-depends-requirements
891 @$(INSTALL) -d $(GRAPHS_DIR)
892 @cd "$(CONFIG_DIR)"; \
893 $(TOPDIR)/support/scripts/graph-depends $(BR2_GRAPH_DEPS_OPTS) \
894 --direct -o $(GRAPHS_DIR)/$(@).dot
895 dot $(BR2_GRAPH_DOT_OPTS) -T$(BR_GRAPH_OUT) \
896 -o $(GRAPHS_DIR)/$(@).$(BR_GRAPH_OUT) \
897 $(GRAPHS_DIR)/$(@).dot
901 $(Q)mkdir -p $(GRAPHS_DIR)
902 $(Q)$(TOPDIR)/support/scripts/size-stats --builddir $(BASE_DIR) \
903 --graph $(GRAPHS_DIR)/graph-size.$(BR_GRAPH_OUT) \
904 --file-size-csv $(GRAPHS_DIR)/file-size-stats.csv \
905 --package-size-csv $(GRAPHS_DIR)/package-size-stats.csv \
906 $(BR2_GRAPH_SIZE_OPTS)
908 .PHONY: check-dependencies
910 @cd "$(CONFIG_DIR)"; \
911 $(TOPDIR)/support/scripts/graph-depends -C
916 $(info $(call clean-json, \
918 $(sort $(foreach i,$(PACKAGES) $(TARGETS_ROOTFS), \
920 $($(call UPPERCASE,$(i))_FINAL_RECURSIVE_DEPENDENCIES) \
923 $(call json-info,$(call UPPERCASE,$(p)))$(comma) \
930 @cd "$(CONFIG_DIR)" ; \
931 $(TOPDIR)/support/scripts/pkg-stats -c \
932 --json $(O)/pkg-stats.json \
933 --html $(O)/pkg-stats.html \
934 --nvd-path $(DL_DIR)/buildroot-nvd
936 else # ifeq ($(BR2_HAVE_DOT_CONFIG),y)
938 # Some subdirectories are also package names. To avoid that "make linux"
939 # on an unconfigured tree produces "Nothing to be done", add an explicit
941 # Also for 'all' we error out and ask the user to configure first.
942 .PHONY: linux toolchain
943 linux toolchain all: outputmakefile
944 $(error Please configure Buildroot first (e.g. "make menuconfig"))
947 endif # ifeq ($(BR2_HAVE_DOT_CONFIG),y)
950 # ---------------------------------------------------------------------------
952 HOSTCFLAGS = $(CFLAGS_FOR_BUILD)
955 $(BUILD_DIR)/buildroot-config/%onf:
956 mkdir -p $(@D)/lxdialog
957 PKG_CONFIG_PATH="$(HOST_PKG_CONFIG_PATH)" $(MAKE) CC="$(HOSTCC_NOCCACHE)" HOSTCC="$(HOSTCC_NOCCACHE)" \
958 obj=$(@D) -C $(CONFIG) -f Makefile.br $(@F)
960 DEFCONFIG = $(call qstrip,$(BR2_DEFCONFIG))
962 # We don't want to fully expand BR2_DEFCONFIG here, so Kconfig will
963 # recognize that if it's still at its default $(CONFIG_DIR)/defconfig
964 COMMON_CONFIG_ENV = \
965 BR2_DEFCONFIG='$(call qstrip,$(value BR2_DEFCONFIG))' \
966 KCONFIG_AUTOCONFIG=$(BUILD_DIR)/buildroot-config/auto.conf \
967 KCONFIG_AUTOHEADER=$(BUILD_DIR)/buildroot-config/autoconf.h \
968 KCONFIG_TRISTATE=$(BUILD_DIR)/buildroot-config/tristate.config \
969 BR2_CONFIG=$(BR2_CONFIG) \
970 HOST_GCC_VERSION="$(HOSTCC_VERSION)" \
971 BASE_DIR=$(BASE_DIR) \
974 xconfig: $(BUILD_DIR)/buildroot-config/qconf outputmakefile
975 @$(COMMON_CONFIG_ENV) $< $(CONFIG_CONFIG_IN)
977 gconfig: $(BUILD_DIR)/buildroot-config/gconf outputmakefile
978 @$(COMMON_CONFIG_ENV) srctree=$(TOPDIR) $< $(CONFIG_CONFIG_IN)
980 menuconfig: $(BUILD_DIR)/buildroot-config/mconf outputmakefile
981 @$(COMMON_CONFIG_ENV) $< $(CONFIG_CONFIG_IN)
983 nconfig: $(BUILD_DIR)/buildroot-config/nconf outputmakefile
984 @$(COMMON_CONFIG_ENV) $< $(CONFIG_CONFIG_IN)
986 config: $(BUILD_DIR)/buildroot-config/conf outputmakefile
987 @$(COMMON_CONFIG_ENV) $< $(CONFIG_CONFIG_IN)
989 # For the config targets that automatically select options, we pass
990 # SKIP_LEGACY=y to disable the legacy options. However, in that case
991 # no values are set for the legacy options so a subsequent oldconfig
992 # will query them. Therefore, run an additional olddefconfig.
994 randconfig allyesconfig alldefconfig allnoconfig: $(BUILD_DIR)/buildroot-config/conf outputmakefile
995 @$(COMMON_CONFIG_ENV) SKIP_LEGACY=y $< --$@ $(CONFIG_CONFIG_IN)
996 @$(COMMON_CONFIG_ENV) $< --olddefconfig $(CONFIG_CONFIG_IN) >/dev/null
998 randpackageconfig allyespackageconfig allnopackageconfig: $(BUILD_DIR)/buildroot-config/conf outputmakefile
999 @grep -v BR2_PACKAGE_ $(BR2_CONFIG) > $(CONFIG_DIR)/.config.nopkg
1000 @$(COMMON_CONFIG_ENV) SKIP_LEGACY=y \
1001 KCONFIG_ALLCONFIG=$(CONFIG_DIR)/.config.nopkg \
1002 $< --$(subst package,,$@) $(CONFIG_CONFIG_IN)
1003 @rm -f $(CONFIG_DIR)/.config.nopkg
1004 @$(COMMON_CONFIG_ENV) $< --olddefconfig $(CONFIG_CONFIG_IN) >/dev/null
1006 oldconfig syncconfig olddefconfig: $(BUILD_DIR)/buildroot-config/conf outputmakefile
1007 @$(COMMON_CONFIG_ENV) $< --$@ $(CONFIG_CONFIG_IN)
1009 defconfig: $(BUILD_DIR)/buildroot-config/conf outputmakefile
1010 @$(COMMON_CONFIG_ENV) $< --defconfig$(if $(DEFCONFIG),=$(DEFCONFIG)) $(CONFIG_CONFIG_IN)
1012 %_defconfig: $(BUILD_DIR)/buildroot-config/conf outputmakefile
1016 $(call reverse,$(TOPDIR) $(BR2_EXTERNAL_DIRS)), \
1017 $(wildcard $(d)/configs/$@) \
1020 $(error "Can't find $@") \
1022 $(COMMON_CONFIG_ENV) BR2_DEFCONFIG=$${defconfig} \
1023 $< --defconfig=$${defconfig} $(CONFIG_CONFIG_IN)
1025 update-defconfig: savedefconfig
1027 savedefconfig: $(BUILD_DIR)/buildroot-config/conf outputmakefile
1028 @$(COMMON_CONFIG_ENV) $< \
1029 --savedefconfig=$(if $(DEFCONFIG),$(DEFCONFIG),$(CONFIG_DIR)/defconfig) \
1031 @$(SED) '/^BR2_DEFCONFIG=/d' $(if $(DEFCONFIG),$(DEFCONFIG),$(CONFIG_DIR)/defconfig)
1033 .PHONY: defconfig savedefconfig update-defconfig
1035 ################################################################################
1037 # Cleanup and misc junk
1039 ################################################################################
1041 # staging and target directories do NOT list these as
1042 # dependencies anywhere else
1043 $(BASE_DIR) $(BUILD_DIR) $(BASE_TARGET_DIR) $(HOST_DIR) $(BINARIES_DIR) $(LEGAL_INFO_DIR) $(REDIST_SOURCES_DIR_TARGET) $(REDIST_SOURCES_DIR_HOST) $(PER_PACKAGE_DIR):
1046 # outputmakefile generates a Makefile in the output directory, if using a
1047 # separate output directory. This allows convenient use of make in the
1049 .PHONY: outputmakefile
1051 ifeq ($(NEED_WRAPPER),y)
1052 $(Q)$(TOPDIR)/support/scripts/mkmakefile $(TOPDIR) $(O)
1055 # printvars prints all the variables currently defined in our
1056 # Makefiles. Alternatively, if a non-empty VARS variable is passed,
1057 # only the variables matching the make pattern passed in VARS are
1059 # show-vars does the same, but as a JSON dictionnary.
1061 # Note: we iterate of .VARIABLES and filter each variable individually,
1062 # to workaround a bug in make 4.3; see https://savannah.gnu.org/bugs/?59093
1066 $(error Please pass a non-empty VARS to 'make printvars')
1070 $(sort $(foreach X, $(.VARIABLES), $(filter $(VARS),$(X)))), \
1071 $(if $(filter-out environment% default automatic, \
1073 $(if $(QUOTED_VARS),\
1074 $(info $V='$(subst ','\'',$(if $(RAW_VARS),$(value $V),$($V)))'), \
1075 $(info $V=$(if $(RAW_VARS),$(value $V),$($V))))))
1076 # ')))) # Syntax colouring...
1078 # See details above, same as for printvars
1084 $(call clean-json, { \
1087 $(and $(filter $(VARS),$(V)) \
1089 $(filter-out environment% default automatic, $(origin $V)) \
1092 "expanded": $(call mk-json-str,$($V))$(comma) \
1093 "raw": $(call mk-json-str,$(value $V)) \
1104 rm -rf $(BASE_TARGET_DIR) $(BINARIES_DIR) $(HOST_DIR) $(HOST_DIR_SYMLINK) \
1105 $(BUILD_DIR) $(BASE_DIR)/staging \
1106 $(LEGAL_INFO_DIR) $(GRAPHS_DIR) $(PER_PACKAGE_DIR) $(CPE_UPDATES_DIR) \
1111 ifeq ($(O),$(CURDIR)/output)
1114 rm -rf $(TOPDIR)/dl $(BR2_CONFIG) $(CONFIG_DIR)/.config.old $(CONFIG_DIR)/..config.tmp \
1115 $(CONFIG_DIR)/.auto.deps $(BASE_DIR)/.br2-external.*
1120 @echo ' clean - delete all files created by build'
1121 @echo ' distclean - delete all non-source files (including .config)'
1124 @echo ' all - make world'
1125 @echo ' toolchain - build toolchain'
1126 @echo ' sdk - build relocatable SDK'
1128 @echo 'Configuration:'
1129 @echo ' menuconfig - interactive curses-based configurator'
1130 @echo ' nconfig - interactive ncurses-based configurator'
1131 @echo ' xconfig - interactive Qt-based configurator'
1132 @echo ' gconfig - interactive GTK-based configurator'
1133 @echo ' oldconfig - resolve any unresolved symbols in .config'
1134 @echo ' syncconfig - Same as oldconfig, but quietly, additionally update deps'
1135 @echo ' olddefconfig - Same as syncconfig but sets new symbols to their default value'
1136 @echo ' randconfig - New config with random answer to all options'
1137 @echo ' defconfig - New config with default answer to all options;'
1138 @echo ' BR2_DEFCONFIG, if set on the command line, is used as input'
1139 @echo ' savedefconfig - Save current config to BR2_DEFCONFIG (minimal config)'
1140 @echo ' update-defconfig - Same as savedefconfig'
1141 @echo ' allyesconfig - New config where all options are accepted with yes'
1142 @echo ' allnoconfig - New config where all options are answered with no'
1143 @echo ' alldefconfig - New config where all options are set to default'
1144 @echo ' randpackageconfig - New config with random answer to package options'
1145 @echo ' allyespackageconfig - New config where pkg options are accepted with yes'
1146 @echo ' allnopackageconfig - New config where package options are answered with no'
1148 @echo 'Package-specific:'
1149 @echo ' <pkg> - Build and install <pkg> and all its dependencies'
1150 @echo ' <pkg>-source - Only download the source files for <pkg>'
1151 @echo ' <pkg>-extract - Extract <pkg> sources'
1152 @echo ' <pkg>-patch - Apply patches to <pkg>'
1153 @echo ' <pkg>-depends - Build <pkg>'\''s dependencies'
1154 @echo ' <pkg>-configure - Build <pkg> up to the configure step'
1155 @echo ' <pkg>-build - Build <pkg> up to the build step'
1156 @echo ' <pkg>-show-info - generate info about <pkg>, as a JSON blurb'
1157 @echo ' <pkg>-show-depends - List packages on which <pkg> depends'
1158 @echo ' <pkg>-show-rdepends - List packages which have <pkg> as a dependency'
1159 @echo ' <pkg>-show-recursive-depends'
1160 @echo ' - Recursively list packages on which <pkg> depends'
1161 @echo ' <pkg>-show-recursive-rdepends'
1162 @echo ' - Recursively list packages which have <pkg> as a dependency'
1163 @echo ' <pkg>-graph-depends - Generate a graph of <pkg>'\''s dependencies'
1164 @echo ' <pkg>-graph-rdepends - Generate a graph of <pkg>'\''s reverse dependencies'
1165 @echo ' <pkg>-dirclean - Remove <pkg> build directory'
1166 @echo ' <pkg>-reconfigure - Restart the build from the configure step'
1167 @echo ' <pkg>-rebuild - Restart the build from the build step'
1168 @echo ' <pkg>-reinstall - Restart the build from the install step'
1169 $(foreach p,$(HELP_PACKAGES), \
1171 @echo '$($(p)_NAME):' $(sep) \
1172 $($(p)_HELP_CMDS)$(sep))
1174 @echo 'Documentation:'
1175 @echo ' manual - build manual in all formats'
1176 @echo ' manual-html - build manual in HTML'
1177 @echo ' manual-split-html - build manual in split HTML'
1178 @echo ' manual-pdf - build manual in PDF'
1179 @echo ' manual-text - build manual in text'
1180 @echo ' manual-epub - build manual in ePub'
1181 @echo ' graph-build - generate graphs of the build times'
1182 @echo ' graph-depends - generate graph of the dependency tree'
1183 @echo ' graph-size - generate stats of the filesystem size'
1184 @echo ' list-defconfigs - list all defconfigs (pre-configured minimal systems)'
1186 @echo 'Miscellaneous:'
1187 @echo ' source - download all sources needed for offline-build'
1188 @echo ' external-deps - list external packages used'
1189 @echo ' legal-info - generate info about license compliance'
1190 @echo ' show-info - generate info about packages, as a JSON blurb'
1191 @echo ' pkg-stats - generate info about packages as JSON and HTML'
1192 @echo ' printvars - dump internal variables selected with VARS=...'
1193 @echo ' show-vars - dump all internal variables as a JSON blurb; use VARS=...'
1194 @echo ' to limit the list to variables names matching that pattern'
1196 @echo ' make V=0|1 - 0 => quiet build (default), 1 => verbose build'
1197 @echo ' make O=dir - Locate all output files in "dir", including .config'
1199 @echo 'For further details, see README, generate the Buildroot manual, or consult'
1200 @echo 'it on-line at http://buildroot.org/docs.html'
1203 # List the defconfig files
1204 # $(1): base directory
1205 # $(2): br2-external name, empty for bundled
1206 define list-defconfigs
1208 for defconfig in $(1)/configs/*_defconfig; do \
1209 [ -f "$${defconfig}" ] || continue; \
1210 if $${first}; then \
1211 if [ "$(2)" ]; then \
1212 printf 'External configs in "$(call qstrip,$(2))":\n'; \
1214 printf "Built-in configs:\n"; \
1218 defconfig="$${defconfig##*/}"; \
1219 printf " %-35s - Build for %s\n" "$${defconfig}" "$${defconfig%_defconfig}"; \
1221 $${first} || printf "\n"
1224 # We iterate over BR2_EXTERNAL_NAMES rather than BR2_EXTERNAL_DIRS,
1225 # because we want to display the name of the br2-external tree.
1226 .PHONY: list-defconfigs
1228 $(call list-defconfigs,$(TOPDIR))
1229 $(foreach name,$(BR2_EXTERNAL_NAMES),\
1230 $(call list-defconfigs,$(BR2_EXTERNAL_$(name)_PATH),\
1231 $(BR2_EXTERNAL_$(name)_DESC))$(sep))
1233 release: OUT = buildroot-$(BR2_VERSION)
1235 # Create release tarballs. We need to fiddle a bit to add the generated
1236 # documentation to the git output
1238 git archive --format=tar --prefix=$(OUT)/ HEAD > $(OUT).tar
1239 $(MAKE) O=$(OUT) manual-html manual-text manual-pdf
1240 $(MAKE) O=$(OUT) distclean
1241 tar rf $(OUT).tar $(OUT)
1242 gzip -9 -c < $(OUT).tar > $(OUT).tar.gz
1243 xz -9 -c < $(OUT).tar > $(OUT).tar.xz
1244 rm -rf $(OUT) $(OUT).tar
1247 @echo $(BR2_VERSION_FULL)
1250 $(Q)./utils/check-package `git ls-tree -r --name-only HEAD` \
1251 --ignore-list=$(TOPDIR)/.checkpackageignore
1253 .PHONY: .checkpackageignore
1254 .checkpackageignore:
1255 $(Q)./utils/check-package --failed-only `git ls-tree -r --name-only HEAD` \
1256 > .checkpackageignore
1258 include docs/manual/manual.mk
1259 -include $(foreach dir,$(BR2_EXTERNAL_DIRS),$(sort $(wildcard $(dir)/docs/*/*.mk)))
1261 .PHONY: $(noconfig_targets)
1263 endif #umask / $(CURDIR) / $(O)