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 := 2024.02-git
94 # Actual time the release is cut (for reproducible builds)
95 BR2_VERSION_EPOCH = 1701677000
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 BR2_CONFIG = $(CONFIG_DIR)/.config
232 # Pull in the user's configuration file
233 ifeq ($(filter $(noconfig_targets),$(MAKECMDGOALS)),)
234 -include $(BR2_CONFIG)
237 ifeq ($(BR2_PER_PACKAGE_DIRECTORIES),)
238 # Disable top-level parallel build if per-package directories is not
239 # used. Indeed, per-package directories is necessary to guarantee
240 # determinism and reproducibility with top-level parallel build.
244 # timezone and locale may affect build output
245 ifeq ($(BR2_REPRODUCIBLE),y)
251 # To put more focus on warnings, be less verbose as default
252 # Use 'make V=1' to see the full commands
253 ifeq ("$(origin V)", "command line")
254 KBUILD_VERBOSE = $(V)
256 ifndef KBUILD_VERBOSE
260 ifeq ($(KBUILD_VERBOSE),1)
270 # kconfig uses CONFIG_SHELL
271 CONFIG_SHELL := $(SHELL)
273 export SHELL CONFIG_SHELL Q KBUILD_VERBOSE
283 HOSTCC := $(shell which $(HOSTCC) || type -p $(HOSTCC) || echo gcc)
285 ifndef HOSTCC_NOCCACHE
286 HOSTCC_NOCCACHE := $(HOSTCC)
290 HOSTCXX := $(shell which $(HOSTCXX) || type -p $(HOSTCXX) || echo g++)
292 ifndef HOSTCXX_NOCCACHE
293 HOSTCXX_NOCCACHE := $(HOSTCXX)
308 HOSTOBJCOPY := objcopy
313 HOSTAR := $(shell which $(HOSTAR) || type -p $(HOSTAR) || echo ar)
314 HOSTAS := $(shell which $(HOSTAS) || type -p $(HOSTAS) || echo as)
315 HOSTCPP := $(shell which $(HOSTCPP) || type -p $(HOSTCPP) || echo cpp)
316 HOSTLD := $(shell which $(HOSTLD) || type -p $(HOSTLD) || echo ld)
317 HOSTLN := $(shell which $(HOSTLN) || type -p $(HOSTLN) || echo ln)
318 HOSTNM := $(shell which $(HOSTNM) || type -p $(HOSTNM) || echo nm)
319 HOSTOBJCOPY := $(shell which $(HOSTOBJCOPY) || type -p $(HOSTOBJCOPY) || echo objcopy)
320 HOSTRANLIB := $(shell which $(HOSTRANLIB) || type -p $(HOSTRANLIB) || echo ranlib)
321 SED := $(shell which sed || type -p sed) -i -e
323 export HOSTAR HOSTAS HOSTCC HOSTCXX HOSTLD
324 export HOSTCC_NOCCACHE HOSTCXX_NOCCACHE
326 # Determine the userland we are running on.
328 # Note that, despite its name, we are not interested in the actual
329 # architecture name. This is mostly used to determine whether some
330 # of the binary tools (e.g. pre-built external toolchains) can run
331 # on the current host. So we need to know if the userland we're
332 # running on can actually run those toolchains.
334 # For example, a 64-bit prebuilt toolchain will not run on a 64-bit
335 # kernel if the userland is 32-bit (e.g. in a chroot for example).
337 # So, we extract the first part of the tuple the host gcc was
338 # configured to generate code for; we assume this is our userland.
340 export HOSTARCH := $(shell LC_ALL=C $(HOSTCC_NOCCACHE) -v 2>&1 | \
341 sed -e '/^Target: \([^-]*\).*/!d' \
344 -e 's/sun4u/sparc64/' \
347 -e 's/ppc64/powerpc64/' \
348 -e 's/ppc/powerpc/' \
349 -e 's/macppc/powerpc/' \
352 # When adding a new host gcc version in Config.in,
353 # update the HOSTCC_MAX_VERSION variable:
354 HOSTCC_MAX_VERSION := 11
356 HOSTCC_VERSION := $(shell V=$$($(HOSTCC_NOCCACHE) --version | \
357 sed -n -r 's/^.* ([0-9]*)\.([0-9]*)\.([0-9]*)[ ]*.*/\1 \2/p'); \
358 [ "$${V%% *}" -le $(HOSTCC_MAX_VERSION) ] || V=$(HOSTCC_MAX_VERSION); \
361 # For gcc >= 5.x, we only need the major version.
362 ifneq ($(firstword $(HOSTCC_VERSION)),4)
363 HOSTCC_VERSION := $(firstword $(HOSTCC_VERSION))
366 ifeq ($(BR2_NEEDS_HOST_UTF8_LOCALE),y)
367 # First, we try to use the user's configured locale (as that's the
368 # language they'd expect messages to be displayed), then we favour
369 # a non language-specific locale like C.UTF-8 if one is available,
370 # so we sort with the C locale to get it at the top.
371 # This is guaranteed to not be empty, because of the check in
372 # support/dependencies/dependencies.sh
373 HOST_UTF8_LOCALE := $(shell \
374 ( echo $${LC_ALL:-$${LC_MESSAGES:-$${LANG}}}; \
375 locale -a 2>/dev/null | LC_ALL=C sort \
377 | grep -i -E 'utf-?8$$' \
379 HOST_UTF8_LOCALE_ENV := LC_ALL=$(HOST_UTF8_LOCALE)
382 # Make sure pkg-config doesn't look outside the buildroot tree
383 HOST_PKG_CONFIG_PATH := $(PKG_CONFIG_PATH)
384 unexport PKG_CONFIG_PATH
385 unexport PKG_CONFIG_SYSROOT_DIR
386 unexport PKG_CONFIG_LIBDIR
388 # Having DESTDIR set in the environment confuses the installation
389 # steps of some packages.
392 # Causes breakage with packages that needs host-ruby
395 # Compilation of perl-related packages will fail otherwise
398 include package/pkg-utils.mk
399 include package/doc-asciidoc.mk
401 ifeq ($(BR2_HAVE_DOT_CONFIG),y)
403 ################################################################################
405 # Hide troublesome environment variables from sub processes
407 ################################################################################
408 unexport CROSS_COMPILE
418 unexport GREP_OPTIONS
430 GNU_HOST_NAME := $(shell support/gnuconfig/config.guess)
435 # silent mode requested?
436 QUIET := $(if $(findstring s,$(filter-out --%,$(MAKEFLAGS))),-q)
438 # Strip off the annoying quoting
439 ARCH := $(call qstrip,$(BR2_ARCH))
440 NORMALIZED_ARCH := $(call qstrip,$(BR2_NORMALIZED_ARCH))
441 KERNEL_ARCH := $(call qstrip,$(BR2_NORMALIZED_ARCH))
443 ZCAT := $(call qstrip,$(BR2_ZCAT))
444 BZCAT := $(call qstrip,$(BR2_BZCAT))
445 XZCAT := $(call qstrip,$(BR2_XZCAT))
446 LZCAT := $(call qstrip,$(BR2_LZCAT))
447 TAR_OPTIONS = $(call qstrip,$(BR2_TAR_OPTIONS)) -xf
449 ifeq ($(BR2_PER_PACKAGE_DIRECTORIES),y)
450 HOST_DIR = $(if $(PKG),$(PER_PACKAGE_DIR)/$($(PKG)_NAME)/host,$(call qstrip,$(BR2_HOST_DIR)))
451 TARGET_DIR = $(if $(ROOTFS),$(ROOTFS_$(ROOTFS)_TARGET_DIR),$(if $(PKG),$(PER_PACKAGE_DIR)/$($(PKG)_NAME)/target,$(BASE_TARGET_DIR)))
453 HOST_DIR := $(call qstrip,$(BR2_HOST_DIR))
454 TARGET_DIR = $(if $(ROOTFS),$(ROOTFS_$(ROOTFS)_TARGET_DIR),$(BASE_TARGET_DIR))
457 ifneq ($(HOST_DIR),$(BASE_DIR)/host)
458 HOST_DIR_SYMLINK = $(BASE_DIR)/host
459 $(HOST_DIR_SYMLINK): | $(BASE_DIR)
460 ln -snf $(HOST_DIR) $(HOST_DIR_SYMLINK)
463 STAGING_DIR_SYMLINK = $(BASE_DIR)/staging
464 $(STAGING_DIR_SYMLINK): | $(BASE_DIR)
465 ln -snf $(STAGING_DIR) $(STAGING_DIR_SYMLINK)
467 # Quotes are needed for spaces and all in the original PATH content.
468 BR_PATH = "$(HOST_DIR)/bin:$(HOST_DIR)/sbin:$(PATH)"
470 # Location of a file giving a big fat warning that output/target
471 # should not be used as the root filesystem.
472 TARGET_DIR_WARNING_FILE = $(TARGET_DIR)/THIS_IS_NOT_YOUR_ROOT_FILESYSTEM
474 ifeq ($(BR2_CCACHE),y)
475 CCACHE = $(HOST_DIR)/bin/ccache
476 BR_CACHE_DIR ?= $(call qstrip,$(BR2_CCACHE_DIR))
478 HOSTCC = $(CCACHE) $(HOSTCC_NOCCACHE)
479 HOSTCXX = $(CCACHE) $(HOSTCXX_NOCCACHE)
480 export BR2_USE_CCACHE ?= 1
483 # Scripts in support/ or post-build scripts may need to reference
484 # these locations, so export them so it is easier to use
486 export BR2_REPRODUCIBLE
493 ################################################################################
495 # You should probably leave this stuff alone unless you know
496 # what you are doing.
498 ################################################################################
502 # Include legacy before the other things, because package .mk files
504 include Makefile.legacy
506 include system/system.mk
507 include package/Makefile.in
508 # arch/arch.mk must be after package/Makefile.in because it may need to
509 # complement variables defined therein, like BR_NO_CHECK_HASH_FOR.
511 include support/dependencies/dependencies.mk
513 include $(sort $(wildcard toolchain/*.mk))
514 include $(sort $(wildcard toolchain/*/*.mk))
516 ifeq ($(BR2_REPRODUCIBLE),y)
517 # If SOURCE_DATE_EPOCH has not been set then use the commit date, or the last
518 # release date if the source tree is not within a Git repository.
519 # See: https://reproducible-builds.org/specs/source-date-epoch/
520 BR2_VERSION_GIT_EPOCH := $(shell $(GIT) log -1 --format=%at 2> /dev/null)
521 export SOURCE_DATE_EPOCH ?= $(or $(BR2_VERSION_GIT_EPOCH),$(BR2_VERSION_EPOCH))
524 # Include the package override file if one has been provided in the
526 PACKAGE_OVERRIDE_FILE = $(call qstrip,$(BR2_PACKAGE_OVERRIDE_FILE))
527 ifneq ($(PACKAGE_OVERRIDE_FILE),)
528 -include $(PACKAGE_OVERRIDE_FILE)
531 include $(sort $(wildcard package/*/*.mk))
533 include boot/common.mk
534 include linux/linux.mk
537 # If using a br2-external tree, the BR2_EXTERNAL_$(NAME)_PATH variables
538 # are also present in the .config file. Since .config is included after
539 # we defined them in the Makefile, the values for those variables are
540 # quoted. We just include the generated Makefile fragment .br2-external.mk
541 # a third time, which will set those variables to the un-quoted values.
542 include $(BR2_EXTERNAL_FILE)
544 # Nothing to include if no BR2_EXTERNAL tree in use
545 include $(BR2_EXTERNAL_MKS)
547 # Now we are sure we have all the packages scanned and defined. We now
548 # check for each package in the list of enabled packages, that all its
549 # dependencies are indeed enabled.
551 # Only trigger the check for default builds. If the user forces building
552 # a package, even if not enabled in the configuration, we want to accept
553 # it. However; we also want to be able to force checking the dependencies
554 # if the user so desires. Forcing a dependency check is useful in the case
555 # of test-pkg, as we want to make sure during testing, that a package has
556 # all the dependencies selected in the config file.
558 ifeq ($(MAKECMDGOALS),)
559 BR_FORCE_CHECK_DEPENDENCIES = YES
562 ifeq ($(BR_FORCE_CHECK_DEPENDENCIES),YES)
564 define CHECK_ONE_DEPENDENCY
565 ifeq ($$($(2)_TYPE),target)
566 ifneq ($$($$($(2)_KCONFIG_VAR)),y)
567 $$(error $$($(2)_NAME) is in the dependency chain of $$($(1)_NAME) that \
568 has added it to its _DEPENDENCIES variable without selecting it or \
569 depending on it from Config.in)
574 $(foreach pkg,$(call UPPERCASE,$(PACKAGES)),\
575 $(foreach dep,$(call UPPERCASE,$($(pkg)_FINAL_ALL_DEPENDENCIES)),\
576 $(eval $(call CHECK_ONE_DEPENDENCY,$(pkg),$(dep))$(sep))))
580 $(BUILD_DIR)/buildroot-config/auto.conf: $(BR2_CONFIG)
581 $(MAKE1) $(EXTRAMAKEARGS) HOSTCC="$(HOSTCC_NOCCACHE)" HOSTCXX="$(HOSTCXX_NOCCACHE)" syncconfig
584 prepare: $(BUILD_DIR)/buildroot-config/auto.conf
585 @$(foreach s, $(call qstrip,$(BR2_ROOTFS_PRE_BUILD_SCRIPT)), \
586 $(call MESSAGE,"Executing pre-build script $(s)"); \
587 $(EXTRA_ENV) $(s) $(TARGET_DIR) $(call qstrip,$(BR2_ROOTFS_POST_SCRIPT_ARGS))$(sep))
590 world: target-post-image
594 @$(call MESSAGE,"Rendering the SDK relocatable")
595 PARALLEL_JOBS=$(PARALLEL_JOBS) \
596 PER_PACKAGE_DIR=$(PER_PACKAGE_DIR) \
597 $(TOPDIR)/support/scripts/fix-rpath host
598 PARALLEL_JOBS=$(PARALLEL_JOBS) \
599 PER_PACKAGE_DIR=$(PER_PACKAGE_DIR) \
600 $(TOPDIR)/support/scripts/fix-rpath staging
601 $(call ppd-fixup-paths,$(BASE_DIR))
602 $(INSTALL) -m 755 $(TOPDIR)/support/misc/relocate-sdk.sh $(HOST_DIR)/relocate-sdk.sh
603 mkdir -p $(HOST_DIR)/share/buildroot
604 echo $(HOST_DIR) > $(HOST_DIR)/share/buildroot/sdk-location
606 BR2_SDK_PREFIX ?= $(GNU_TARGET_NAME)_sdk-buildroot
608 sdk: prepare-sdk $(BR2_TAR_HOST_DEPENDENCY)
609 @$(call MESSAGE,"Generating SDK tarball")
610 $(if $(BR2_SDK_PREFIX),,$(error BR2_SDK_PREFIX can not be empty))
611 $(Q)mkdir -p $(BINARIES_DIR)
612 $(TAR) czf "$(BINARIES_DIR)/$(BR2_SDK_PREFIX).tar.gz" \
613 --owner=0 --group=0 --numeric-owner \
614 --transform='s#^$(patsubst /%,%,$(HOST_DIR))#$(BR2_SDK_PREFIX)#' \
615 -C / $(patsubst /%,%,$(HOST_DIR))
617 RSYNC_VCS_EXCLUSIONS = \
618 --exclude .svn --exclude .git --exclude .hg --exclude .bzr \
621 # When stripping, obey to BR2_STRIP_EXCLUDE_DIRS and
622 # BR2_STRIP_EXCLUDE_FILES
623 STRIP_FIND_COMMON_CMD = \
625 $(if $(call qstrip,$(BR2_STRIP_EXCLUDE_DIRS)), \
626 \( $(call finddirclauses,$(TARGET_DIR),$(call qstrip,$(BR2_STRIP_EXCLUDE_DIRS))) \) \
629 $(if $(call qstrip,$(BR2_STRIP_EXCLUDE_FILES)), \
630 -not \( $(call findfileclauses,$(call qstrip,$(BR2_STRIP_EXCLUDE_FILES))) \) )
632 # Regular stripping for everything, except libpthread, ld-*.so and
634 # - libpthread.so: a non-stripped libpthread shared library is needed for
635 # proper debugging of pthread programs using gdb.
636 # - ld.so: a non-stripped dynamic linker library is needed for valgrind
637 # - kernel modules (*.ko): do not function properly when stripped like normal
638 # applications and libraries. Normally kernel modules are already excluded
639 # by the executable permission check, so the explicit exclusion is only
640 # done for kernel modules with incorrect permissions.
642 $(STRIP_FIND_COMMON_CMD) \
643 -type f \( -perm /111 -o -name '*.so*' \) \
644 -not \( $(call findfileclauses,libpthread*.so* ld-*.so* *.ko) \) \
647 # Special stripping (only debugging symbols) for libpthread and ld-*.so.
648 STRIP_FIND_SPECIAL_LIBS_CMD = \
649 $(STRIP_FIND_COMMON_CMD) \
650 \( -name 'ld-*.so*' -o -name 'libpthread*.so*' \) \
653 # Generate locale data.
654 ifeq ($(BR2_TOOLCHAIN_USES_GLIBC),y)
655 GLIBC_GENERATE_LOCALES = $(call qstrip,$(BR2_GENERATE_LOCALE))
656 ifneq ($(GLIBC_GENERATE_LOCALES),)
657 PACKAGES += host-localedef
659 define GENERATE_GLIBC_LOCALES
660 +$(MAKE) -f support/misc/gen-glibc-locales.mk \
661 ENDIAN=$(call LOWERCASE,$(BR2_ENDIAN)) \
662 LOCALES="$(GLIBC_GENERATE_LOCALES)" \
665 TARGET_FINALIZE_HOOKS += GENERATE_GLIBC_LOCALES
669 ifeq ($(BR2_ENABLE_LOCALE_PURGE),y)
670 LOCALE_WHITELIST = $(BUILD_DIR)/locales.nopurge
671 LOCALE_NOPURGE = $(call qstrip,$(BR2_ENABLE_LOCALE_WHITELIST))
673 # This piece of junk does the following:
674 # First collect the whitelist in a file.
675 # Then go over all the locale dirs and for each subdir, check if it exists
676 # in the whitelist file. If it doesn't, kill it.
677 # Finally, specifically for X11, regenerate locale.dir from the whitelist.
679 printf '%s\n' $(LOCALE_NOPURGE) locale-archive > $(LOCALE_WHITELIST)
681 for dir in $(addprefix $(TARGET_DIR),/usr/share/locale /usr/share/X11/locale /usr/lib/locale); \
683 if [ ! -d $$dir ]; then continue; fi; \
684 for langdir in $$dir/*; \
686 if [ -e "$${langdir}" ]; \
688 grep -qx "$${langdir##*/}" $(LOCALE_WHITELIST) || rm -rf $$langdir; \
692 if [ -d $(TARGET_DIR)/usr/share/X11/locale ]; \
694 for lang in $(LOCALE_NOPURGE); \
696 if [ -f $(TARGET_DIR)/usr/share/X11/locale/$$lang/XLC_LOCALE ]; \
698 echo "$$lang/XLC_LOCALE: $$lang"; \
700 done > $(TARGET_DIR)/usr/share/X11/locale/locale.dir; \
703 TARGET_FINALIZE_HOOKS += PURGE_LOCALES
706 $(TARGETS_ROOTFS): target-finalize
708 # Avoid the rootfs name leaking down the dependency chain
709 target-finalize: ROOTFS=
711 TARGET_DIR_FILES_LISTS = $(sort $(wildcard $(BUILD_DIR)/*/.files-list.txt))
712 HOST_DIR_FILES_LISTS = $(sort $(wildcard $(BUILD_DIR)/*/.files-list-host.txt))
713 STAGING_DIR_FILES_LISTS = $(sort $(wildcard $(BUILD_DIR)/*/.files-list-staging.txt))
715 .PHONY: host-finalize
716 host-finalize: $(PACKAGES) $(HOST_DIR) $(HOST_DIR_SYMLINK)
717 @$(call MESSAGE,"Finalizing host directory")
718 $(call per-package-rsync,$(sort $(PACKAGES)),host,$(HOST_DIR),copy)
720 .PHONY: staging-finalize
721 staging-finalize: $(STAGING_DIR_SYMLINK)
723 .PHONY: target-finalize
724 target-finalize: $(PACKAGES) $(TARGET_DIR) host-finalize
725 @$(call MESSAGE,"Finalizing target directory")
726 $(call per-package-rsync,$(sort $(PACKAGES)),target,$(TARGET_DIR),copy)
727 $(foreach hook,$(TARGET_FINALIZE_HOOKS),$($(hook))$(sep))
728 rm -rf $(TARGET_DIR)/usr/include $(TARGET_DIR)/usr/share/aclocal \
729 $(TARGET_DIR)/usr/lib/pkgconfig $(TARGET_DIR)/usr/share/pkgconfig \
730 $(TARGET_DIR)/usr/lib/cmake $(TARGET_DIR)/usr/share/cmake \
731 $(TARGET_DIR)/usr/lib/rpm $(TARGET_DIR)/usr/doc
732 find $(TARGET_DIR)/usr/{lib,share}/ -name '*.cmake' -print0 | xargs -0 rm -f
733 find $(TARGET_DIR)/lib/ $(TARGET_DIR)/usr/lib/ $(TARGET_DIR)/usr/libexec/ \
734 \( -name '*.a' -o -name '*.la' -o -name '*.prl' \) -print0 | xargs -0 rm -f
735 ifneq ($(BR2_PACKAGE_GDB),y)
736 rm -rf $(TARGET_DIR)/usr/share/gdb
738 ifneq ($(BR2_PACKAGE_BASH),y)
739 rm -rf $(TARGET_DIR)/usr/share/bash-completion
740 rm -rf $(TARGET_DIR)/etc/bash_completion.d
742 ifneq ($(BR2_PACKAGE_ZSH),y)
743 rm -rf $(TARGET_DIR)/usr/share/zsh
745 rm -rf $(TARGET_DIR)/usr/man $(TARGET_DIR)/usr/share/man
746 rm -rf $(TARGET_DIR)/usr/info $(TARGET_DIR)/usr/share/info
747 rm -rf $(TARGET_DIR)/usr/doc $(TARGET_DIR)/usr/share/doc
748 rm -rf $(TARGET_DIR)/usr/share/gtk-doc
749 rmdir $(TARGET_DIR)/usr/share 2>/dev/null || true
750 ifneq ($(BR2_ENABLE_DEBUG):$(BR2_STRIP_strip),y:)
751 rm -rf $(TARGET_DIR)/lib/debug $(TARGET_DIR)/usr/lib/debug
753 $(STRIP_FIND_CMD) | xargs -0 $(STRIPCMD) 2>/dev/null || true
754 $(STRIP_FIND_SPECIAL_LIBS_CMD) | xargs -0 -r $(STRIPCMD) $(STRIP_STRIP_DEBUG) 2>/dev/null || true
756 test -f $(TARGET_DIR)/etc/ld.so.conf && \
757 { echo "ERROR: we shouldn't have a /etc/ld.so.conf file"; exit 1; } || true
758 test -d $(TARGET_DIR)/etc/ld.so.conf.d && \
759 { echo "ERROR: we shouldn't have a /etc/ld.so.conf.d directory"; exit 1; } || true
760 mkdir -p $(TARGET_DIR)/etc
762 echo "NAME=Buildroot"; \
763 echo "VERSION=$(BR2_VERSION_FULL)"; \
764 echo "ID=buildroot"; \
765 echo "VERSION_ID=$(BR2_VERSION)"; \
766 echo "PRETTY_NAME=\"Buildroot $(BR2_VERSION)\"" \
767 ) > $(TARGET_DIR)/usr/lib/os-release
768 ln -sf ../usr/lib/os-release $(TARGET_DIR)/etc
770 @$(call MESSAGE,"Sanitizing RPATH in target tree")
771 PARALLEL_JOBS=$(PARALLEL_JOBS) \
772 PER_PACKAGE_DIR=$(PER_PACKAGE_DIR) \
773 $(TOPDIR)/support/scripts/fix-rpath target
775 # For a merged /usr, ensure that /lib, /bin and /sbin and their /usr
776 # counterparts are appropriately setup as symlinks ones to the others.
777 ifeq ($(BR2_ROOTFS_MERGED_USR),y)
779 $(foreach d, $(call qstrip,$(BR2_ROOTFS_OVERLAY)), \
780 @$(call MESSAGE,"Sanity check in overlay $(d)")$(sep) \
781 $(Q)not_merged_dirs="$$(support/scripts/check-merged-usr.sh $(d))"; \
782 test -n "$$not_merged_dirs" && { \
783 echo "ERROR: The overlay in $(d) is not" \
784 "using a merged /usr for the following directories:" \
791 $(foreach d, $(call qstrip,$(BR2_ROOTFS_OVERLAY)), \
792 @$(call MESSAGE,"Copying overlay $(d)")$(sep) \
793 $(Q)$(call SYSTEM_RSYNC,$(d),$(TARGET_DIR))$(sep))
795 $(Q)$(if $(TARGET_DIR_FILES_LISTS), \
796 cat $(TARGET_DIR_FILES_LISTS)) > $(BUILD_DIR)/packages-file-list.txt
797 $(Q)$(if $(HOST_DIR_FILES_LISTS), \
798 cat $(HOST_DIR_FILES_LISTS)) > $(BUILD_DIR)/packages-file-list-host.txt
799 $(Q)$(if $(STAGING_DIR_FILES_LISTS), \
800 cat $(STAGING_DIR_FILES_LISTS)) > $(BUILD_DIR)/packages-file-list-staging.txt
802 $(foreach s, $(call qstrip,$(BR2_ROOTFS_POST_BUILD_SCRIPT)), \
803 @$(call MESSAGE,"Executing post-build script $(s)")$(sep) \
804 $(Q)$(EXTRA_ENV) $(s) $(TARGET_DIR) $(call qstrip,$(BR2_ROOTFS_POST_SCRIPT_ARGS))$(sep))
806 touch $(TARGET_DIR)/usr
808 # Note: this will run in the filesystem context, so will use a copy
809 # of target/, not the real one, so the files are still available on
810 # re-builds (foo-rebuild, etc...)
811 define ROOTFS_RM_HWDB_DATA
812 rm -rf $(TARGET_DIR)/usr/lib/udev/hwdb.d/ $(TARGET_DIR)/etc/udev/hwdb.d/
814 ROOTFS_PRE_CMD_HOOKS += ROOTFS_RM_HWDB_DATA
816 .PHONY: target-post-image
817 target-post-image: $(TARGETS_ROOTFS) target-finalize staging-finalize
818 @rm -f $(ROOTFS_COMMON_TAR)
819 $(Q)mkdir -p $(BINARIES_DIR)
820 @$(foreach s, $(call qstrip,$(BR2_ROOTFS_POST_IMAGE_SCRIPT)), \
821 $(call MESSAGE,"Executing post-image script $(s)"); \
822 $(EXTRA_ENV) $(s) $(BINARIES_DIR) $(call qstrip,$(BR2_ROOTFS_POST_SCRIPT_ARGS))$(sep))
825 source: $(foreach p,$(PACKAGES),$(p)-all-source)
827 .PHONY: _external-deps external-deps
828 _external-deps: $(foreach p,$(PACKAGES),$(p)-all-external-deps)
830 @$(MAKE1) -Bs $(EXTRAMAKEARGS) _external-deps | sort -u
832 .PHONY: legal-info-clean
834 @rm -fr $(LEGAL_INFO_DIR)
836 .PHONY: legal-info-prepare
837 legal-info-prepare: $(LEGAL_INFO_DIR)
838 @$(call MESSAGE,"Buildroot $(BR2_VERSION_FULL) Collecting legal info")
839 @$(call legal-license-file,HOST,buildroot,buildroot,COPYING,COPYING,support/legal-info/buildroot.hash)
840 @$(call legal-manifest,TARGET,PACKAGE,VERSION,LICENSE,LICENSE FILES,SOURCE ARCHIVE,SOURCE SITE,DEPENDENCIES WITH LICENSES)
841 @$(call legal-manifest,HOST,PACKAGE,VERSION,LICENSE,LICENSE FILES,SOURCE ARCHIVE,SOURCE SITE,DEPENDENCIES WITH LICENSES)
842 @$(call legal-manifest,HOST,buildroot,$(BR2_VERSION_FULL),GPL-2.0+,COPYING,not saved,not saved)
843 @$(call legal-warning,the Buildroot source code has not been saved)
844 @cp $(BR2_CONFIG) $(LEGAL_INFO_DIR)/buildroot.config
847 legal-info: legal-info-clean legal-info-prepare $(foreach p,$(PACKAGES),$(p)-all-legal-info) \
848 $(REDIST_SOURCES_DIR_TARGET) $(REDIST_SOURCES_DIR_HOST)
849 @cat support/legal-info/README.header >>$(LEGAL_REPORT)
850 @if [ -r $(LEGAL_WARNINGS) ]; then \
851 cat support/legal-info/README.warnings-header \
852 $(LEGAL_WARNINGS) >>$(LEGAL_REPORT); \
853 cat $(LEGAL_WARNINGS); fi
854 @rm -f $(LEGAL_WARNINGS)
855 @(cd $(LEGAL_INFO_DIR); \
856 find * -type f -exec sha256sum {} + | LC_ALL=C sort -k2 \
857 >.legal-info.sha256; \
858 mv .legal-info.sha256 legal-info.sha256)
859 @echo "Legal info produced in $(LEGAL_INFO_DIR)"
863 @echo $(sort $(PACKAGES)) $(sort $(TARGETS_ROOTFS))
865 .PHONY: show-build-order
866 show-build-order: $(patsubst %,%-show-build-order,$(PACKAGES))
869 graph-build: $(O)/build/build-time.log
870 @install -d $(GRAPHS_DIR)
871 $(foreach o,name build duration,./support/scripts/graph-build-time \
872 --type=histogram --order=$(o) --input=$(<) \
873 --output=$(GRAPHS_DIR)/build.hist-$(o).$(BR_GRAPH_OUT) \
874 $(if $(BR2_GRAPH_ALT),--alternate-colors)$(sep))
875 $(foreach t,packages steps,./support/scripts/graph-build-time \
876 --type=pie-$(t) --input=$(<) \
877 --output=$(GRAPHS_DIR)/build.pie-$(t).$(BR_GRAPH_OUT) \
878 $(if $(BR2_GRAPH_ALT),--alternate-colors)$(sep))
879 ./support/scripts/graph-build-time --type=timeline --input=$(<) \
880 --output=$(GRAPHS_DIR)/build.timeline.$(BR_GRAPH_OUT) \
881 $(if $(BR2_GRAPH_ALT),--alternate-colors)
883 .PHONY: graph-depends-requirements
884 graph-depends-requirements:
885 @dot -? >/dev/null 2>&1 || \
886 { echo "ERROR: The 'dot' program from Graphviz is needed for graph-depends" >&2; exit 1; }
888 .PHONY: graph-depends
889 graph-depends: graph-depends-requirements
890 @$(INSTALL) -d $(GRAPHS_DIR)
891 @cd "$(CONFIG_DIR)"; \
892 $(TOPDIR)/support/scripts/graph-depends $(BR2_GRAPH_DEPS_OPTS) \
893 --direct -o $(GRAPHS_DIR)/$(@).dot
894 dot $(BR2_GRAPH_DOT_OPTS) -T$(BR_GRAPH_OUT) \
895 -o $(GRAPHS_DIR)/$(@).$(BR_GRAPH_OUT) \
896 $(GRAPHS_DIR)/$(@).dot
900 $(Q)mkdir -p $(GRAPHS_DIR)
901 $(Q)$(TOPDIR)/support/scripts/size-stats --builddir $(BASE_DIR) \
902 --graph $(GRAPHS_DIR)/graph-size.$(BR_GRAPH_OUT) \
903 --file-size-csv $(GRAPHS_DIR)/file-size-stats.csv \
904 --package-size-csv $(GRAPHS_DIR)/package-size-stats.csv \
905 $(BR2_GRAPH_SIZE_OPTS)
907 .PHONY: check-dependencies
909 @cd "$(CONFIG_DIR)"; \
910 $(TOPDIR)/support/scripts/graph-depends -C
915 $(info $(call clean-json, \
917 $(sort $(foreach i,$(PACKAGES) $(TARGETS_ROOTFS), \
919 $($(call UPPERCASE,$(i))_FINAL_RECURSIVE_DEPENDENCIES) \
922 $(call json-info,$(call UPPERCASE,$(p)))$(comma) \
929 @cd "$(CONFIG_DIR)" ; \
930 $(TOPDIR)/support/scripts/pkg-stats -c \
931 --json $(O)/pkg-stats.json \
932 --html $(O)/pkg-stats.html \
933 --nvd-path $(DL_DIR)/buildroot-nvd
935 else # ifeq ($(BR2_HAVE_DOT_CONFIG),y)
937 # Some subdirectories are also package names. To avoid that "make linux"
938 # on an unconfigured tree produces "Nothing to be done", add an explicit
940 # Also for 'all' we error out and ask the user to configure first.
941 .PHONY: linux toolchain
942 linux toolchain all: outputmakefile
943 $(error Please configure Buildroot first (e.g. "make menuconfig"))
946 endif # ifeq ($(BR2_HAVE_DOT_CONFIG),y)
949 # ---------------------------------------------------------------------------
951 HOSTCFLAGS = $(CFLAGS_FOR_BUILD)
954 $(BUILD_DIR)/buildroot-config/%onf:
955 mkdir -p $(@D)/lxdialog
956 PKG_CONFIG_PATH="$(HOST_PKG_CONFIG_PATH)" $(MAKE) CC="$(HOSTCC_NOCCACHE)" HOSTCC="$(HOSTCC_NOCCACHE)" \
957 obj=$(@D) -C $(CONFIG) -f Makefile.br $(@F)
959 DEFCONFIG = $(call qstrip,$(BR2_DEFCONFIG))
961 # We don't want to fully expand BR2_DEFCONFIG here, so Kconfig will
962 # recognize that if it's still at its default $(CONFIG_DIR)/defconfig
963 COMMON_CONFIG_ENV = \
964 BR2_DEFCONFIG='$(call qstrip,$(value BR2_DEFCONFIG))' \
965 KCONFIG_AUTOCONFIG=$(BUILD_DIR)/buildroot-config/auto.conf \
966 KCONFIG_AUTOHEADER=$(BUILD_DIR)/buildroot-config/autoconf.h \
967 KCONFIG_TRISTATE=$(BUILD_DIR)/buildroot-config/tristate.config \
968 BR2_CONFIG=$(BR2_CONFIG) \
969 HOST_GCC_VERSION="$(HOSTCC_VERSION)" \
970 BASE_DIR=$(BASE_DIR) \
973 xconfig: $(BUILD_DIR)/buildroot-config/qconf outputmakefile
974 @$(COMMON_CONFIG_ENV) $< $(CONFIG_CONFIG_IN)
976 gconfig: $(BUILD_DIR)/buildroot-config/gconf outputmakefile
977 @$(COMMON_CONFIG_ENV) srctree=$(TOPDIR) $< $(CONFIG_CONFIG_IN)
979 menuconfig: $(BUILD_DIR)/buildroot-config/mconf outputmakefile
980 @$(COMMON_CONFIG_ENV) $< $(CONFIG_CONFIG_IN)
982 nconfig: $(BUILD_DIR)/buildroot-config/nconf outputmakefile
983 @$(COMMON_CONFIG_ENV) $< $(CONFIG_CONFIG_IN)
985 config: $(BUILD_DIR)/buildroot-config/conf outputmakefile
986 @$(COMMON_CONFIG_ENV) $< $(CONFIG_CONFIG_IN)
988 # For the config targets that automatically select options, we pass
989 # SKIP_LEGACY=y to disable the legacy options. However, in that case
990 # no values are set for the legacy options so a subsequent oldconfig
991 # will query them. Therefore, run an additional olddefconfig.
993 randconfig allyesconfig alldefconfig allnoconfig: $(BUILD_DIR)/buildroot-config/conf outputmakefile
994 @$(COMMON_CONFIG_ENV) SKIP_LEGACY=y $< --$@ $(CONFIG_CONFIG_IN)
995 @$(COMMON_CONFIG_ENV) $< --olddefconfig $(CONFIG_CONFIG_IN) >/dev/null
997 randpackageconfig allyespackageconfig allnopackageconfig: $(BUILD_DIR)/buildroot-config/conf outputmakefile
998 @grep -v BR2_PACKAGE_ $(BR2_CONFIG) > $(CONFIG_DIR)/.config.nopkg
999 @$(COMMON_CONFIG_ENV) SKIP_LEGACY=y \
1000 KCONFIG_ALLCONFIG=$(CONFIG_DIR)/.config.nopkg \
1001 $< --$(subst package,,$@) $(CONFIG_CONFIG_IN)
1002 @rm -f $(CONFIG_DIR)/.config.nopkg
1003 @$(COMMON_CONFIG_ENV) $< --olddefconfig $(CONFIG_CONFIG_IN) >/dev/null
1005 oldconfig syncconfig olddefconfig: $(BUILD_DIR)/buildroot-config/conf outputmakefile
1006 @$(COMMON_CONFIG_ENV) $< --$@ $(CONFIG_CONFIG_IN)
1008 defconfig: $(BUILD_DIR)/buildroot-config/conf outputmakefile
1009 @$(COMMON_CONFIG_ENV) $< --defconfig$(if $(DEFCONFIG),=$(DEFCONFIG)) $(CONFIG_CONFIG_IN)
1011 %_defconfig: $(BUILD_DIR)/buildroot-config/conf outputmakefile
1015 $(call reverse,$(TOPDIR) $(BR2_EXTERNAL_DIRS)), \
1016 $(wildcard $(d)/configs/$@) \
1019 $(error "Can't find $@") \
1021 $(COMMON_CONFIG_ENV) BR2_DEFCONFIG=$${defconfig} \
1022 $< --defconfig=$${defconfig} $(CONFIG_CONFIG_IN)
1024 update-defconfig: savedefconfig
1026 savedefconfig: $(BUILD_DIR)/buildroot-config/conf outputmakefile
1027 @$(COMMON_CONFIG_ENV) $< \
1028 --savedefconfig=$(if $(DEFCONFIG),$(DEFCONFIG),$(CONFIG_DIR)/defconfig) \
1030 @$(SED) '/^BR2_DEFCONFIG=/d' $(if $(DEFCONFIG),$(DEFCONFIG),$(CONFIG_DIR)/defconfig)
1032 .PHONY: defconfig savedefconfig update-defconfig
1034 ################################################################################
1036 # Cleanup and misc junk
1038 ################################################################################
1040 # staging and target directories do NOT list these as
1041 # dependencies anywhere else
1042 $(BASE_DIR) $(BUILD_DIR) $(BASE_TARGET_DIR) $(HOST_DIR) $(BINARIES_DIR) $(LEGAL_INFO_DIR) $(REDIST_SOURCES_DIR_TARGET) $(REDIST_SOURCES_DIR_HOST) $(PER_PACKAGE_DIR):
1045 # outputmakefile generates a Makefile in the output directory, if using a
1046 # separate output directory. This allows convenient use of make in the
1048 .PHONY: outputmakefile
1050 ifeq ($(NEED_WRAPPER),y)
1051 $(Q)$(TOPDIR)/support/scripts/mkmakefile $(TOPDIR) $(O)
1054 # printvars prints all the variables currently defined in our
1055 # Makefiles. Alternatively, if a non-empty VARS variable is passed,
1056 # only the variables matching the make pattern passed in VARS are
1058 # show-vars does the same, but as a JSON dictionnary.
1060 # Note: we iterate of .VARIABLES and filter each variable individually,
1061 # to workaround a bug in make 4.3; see https://savannah.gnu.org/bugs/?59093
1065 $(error Please pass a non-empty VARS to 'make printvars')
1069 $(sort $(foreach X, $(.VARIABLES), $(filter $(VARS),$(X)))), \
1070 $(if $(filter-out environment% default automatic, \
1072 $(if $(QUOTED_VARS),\
1073 $(info $V='$(subst ','\'',$(if $(RAW_VARS),$(value $V),$($V)))'), \
1074 $(info $V=$(if $(RAW_VARS),$(value $V),$($V))))))
1075 # ')))) # Syntax colouring...
1077 # See details above, same as for printvars
1083 $(call clean-json, { \
1086 $(and $(filter $(VARS),$(V)) \
1088 $(filter-out environment% default automatic, $(origin $V)) \
1091 "expanded": $(call mk-json-str,$($V))$(comma) \
1092 "raw": $(call mk-json-str,$(value $V)) \
1103 rm -rf $(BASE_TARGET_DIR) $(BINARIES_DIR) $(HOST_DIR) $(HOST_DIR_SYMLINK) \
1104 $(BUILD_DIR) $(BASE_DIR)/staging \
1105 $(LEGAL_INFO_DIR) $(GRAPHS_DIR) $(PER_PACKAGE_DIR) $(O)/pkg-stats.*
1109 ifeq ($(O),$(CURDIR)/output)
1112 rm -rf $(TOPDIR)/dl $(BR2_CONFIG) $(CONFIG_DIR)/.config.old $(CONFIG_DIR)/..config.tmp \
1113 $(CONFIG_DIR)/.auto.deps $(BASE_DIR)/.br2-external.*
1118 @echo ' clean - delete all files created by build'
1119 @echo ' distclean - delete all non-source files (including .config)'
1122 @echo ' all - make world'
1123 @echo ' toolchain - build toolchain'
1124 @echo ' sdk - build relocatable SDK'
1126 @echo 'Configuration:'
1127 @echo ' menuconfig - interactive curses-based configurator'
1128 @echo ' nconfig - interactive ncurses-based configurator'
1129 @echo ' xconfig - interactive Qt-based configurator'
1130 @echo ' gconfig - interactive GTK-based configurator'
1131 @echo ' oldconfig - resolve any unresolved symbols in .config'
1132 @echo ' syncconfig - Same as oldconfig, but quietly, additionally update deps'
1133 @echo ' olddefconfig - Same as syncconfig but sets new symbols to their default value'
1134 @echo ' randconfig - New config with random answer to all options'
1135 @echo ' defconfig - New config with default answer to all options;'
1136 @echo ' BR2_DEFCONFIG, if set on the command line, is used as input'
1137 @echo ' savedefconfig - Save current config to BR2_DEFCONFIG (minimal config)'
1138 @echo ' update-defconfig - Same as savedefconfig'
1139 @echo ' allyesconfig - New config where all options are accepted with yes'
1140 @echo ' allnoconfig - New config where all options are answered with no'
1141 @echo ' alldefconfig - New config where all options are set to default'
1142 @echo ' randpackageconfig - New config with random answer to package options'
1143 @echo ' allyespackageconfig - New config where pkg options are accepted with yes'
1144 @echo ' allnopackageconfig - New config where package options are answered with no'
1146 @echo 'Package-specific:'
1147 @echo ' <pkg> - Build and install <pkg> and all its dependencies'
1148 @echo ' <pkg>-source - Only download the source files for <pkg>'
1149 @echo ' <pkg>-extract - Extract <pkg> sources'
1150 @echo ' <pkg>-patch - Apply patches to <pkg>'
1151 @echo ' <pkg>-depends - Build <pkg>'\''s dependencies'
1152 @echo ' <pkg>-configure - Build <pkg> up to the configure step'
1153 @echo ' <pkg>-build - Build <pkg> up to the build step'
1154 @echo ' <pkg>-show-info - generate info about <pkg>, as a JSON blurb'
1155 @echo ' <pkg>-show-depends - List packages on which <pkg> depends'
1156 @echo ' <pkg>-show-rdepends - List packages which have <pkg> as a dependency'
1157 @echo ' <pkg>-show-recursive-depends'
1158 @echo ' - Recursively list packages on which <pkg> depends'
1159 @echo ' <pkg>-show-recursive-rdepends'
1160 @echo ' - Recursively list packages which have <pkg> as a dependency'
1161 @echo ' <pkg>-graph-depends - Generate a graph of <pkg>'\''s dependencies'
1162 @echo ' <pkg>-graph-rdepends - Generate a graph of <pkg>'\''s reverse dependencies'
1163 @echo ' <pkg>-dirclean - Remove <pkg> build directory'
1164 @echo ' <pkg>-reconfigure - Restart the build from the configure step'
1165 @echo ' <pkg>-rebuild - Restart the build from the build step'
1166 @echo ' <pkg>-reinstall - Restart the build from the install step'
1167 $(foreach p,$(HELP_PACKAGES), \
1169 @echo '$($(p)_NAME):' $(sep) \
1170 $($(p)_HELP_CMDS)$(sep))
1172 @echo 'Documentation:'
1173 @echo ' manual - build manual in all formats'
1174 @echo ' manual-html - build manual in HTML'
1175 @echo ' manual-split-html - build manual in split HTML'
1176 @echo ' manual-pdf - build manual in PDF'
1177 @echo ' manual-text - build manual in text'
1178 @echo ' manual-epub - build manual in ePub'
1179 @echo ' graph-build - generate graphs of the build times'
1180 @echo ' graph-depends - generate graph of the dependency tree'
1181 @echo ' graph-size - generate stats of the filesystem size'
1182 @echo ' list-defconfigs - list all defconfigs (pre-configured minimal systems)'
1184 @echo 'Miscellaneous:'
1185 @echo ' source - download all sources needed for offline-build'
1186 @echo ' external-deps - list external packages used'
1187 @echo ' legal-info - generate info about license compliance'
1188 @echo ' show-info - generate info about packages, as a JSON blurb'
1189 @echo ' pkg-stats - generate info about packages as JSON and HTML'
1190 @echo ' printvars - dump internal variables selected with VARS=...'
1191 @echo ' show-vars - dump all internal variables as a JSON blurb; use VARS=...'
1192 @echo ' to limit the list to variables names matching that pattern'
1194 @echo ' make V=0|1 - 0 => quiet build (default), 1 => verbose build'
1195 @echo ' make O=dir - Locate all output files in "dir", including .config'
1197 @echo 'For further details, see README, generate the Buildroot manual, or consult'
1198 @echo 'it on-line at http://buildroot.org/docs.html'
1201 # List the defconfig files
1202 # $(1): base directory
1203 # $(2): br2-external name, empty for bundled
1204 define list-defconfigs
1206 for defconfig in $(1)/configs/*_defconfig; do \
1207 [ -f "$${defconfig}" ] || continue; \
1208 if $${first}; then \
1209 if [ "$(2)" ]; then \
1210 printf 'External configs in "$(call qstrip,$(2))":\n'; \
1212 printf "Built-in configs:\n"; \
1216 defconfig="$${defconfig##*/}"; \
1217 printf " %-35s - Build for %s\n" "$${defconfig}" "$${defconfig%_defconfig}"; \
1219 $${first} || printf "\n"
1222 # We iterate over BR2_EXTERNAL_NAMES rather than BR2_EXTERNAL_DIRS,
1223 # because we want to display the name of the br2-external tree.
1224 .PHONY: list-defconfigs
1226 $(call list-defconfigs,$(TOPDIR))
1227 $(foreach name,$(BR2_EXTERNAL_NAMES),\
1228 $(call list-defconfigs,$(BR2_EXTERNAL_$(name)_PATH),\
1229 $(BR2_EXTERNAL_$(name)_DESC))$(sep))
1231 release: OUT = buildroot-$(BR2_VERSION)
1233 # Create release tarballs. We need to fiddle a bit to add the generated
1234 # documentation to the git output
1236 git archive --format=tar --prefix=$(OUT)/ HEAD > $(OUT).tar
1237 $(MAKE) O=$(OUT) manual-html manual-text manual-pdf
1238 $(MAKE) O=$(OUT) distclean
1239 tar rf $(OUT).tar $(OUT)
1240 gzip -9 -c < $(OUT).tar > $(OUT).tar.gz
1241 xz -9 -c < $(OUT).tar > $(OUT).tar.xz
1242 rm -rf $(OUT) $(OUT).tar
1245 @echo $(BR2_VERSION_FULL)
1248 $(Q)./utils/check-package `git ls-tree -r --name-only HEAD` \
1249 --ignore-list=$(TOPDIR)/.checkpackageignore
1251 .PHONY: .checkpackageignore
1252 .checkpackageignore:
1253 $(Q)./utils/check-package --failed-only `git ls-tree -r --name-only HEAD` \
1254 > .checkpackageignore
1256 include docs/manual/manual.mk
1257 -include $(foreach dir,$(BR2_EXTERNAL_DIRS),$(sort $(wildcard $(dir)/docs/*/*.mk)))
1259 .PHONY: $(noconfig_targets)
1261 # .WAIT was introduced in make 4.4. For older make, define it as phony.
1264 endif #umask / $(CURDIR) / $(O)