1 # Makefile for buildroot
3 # Copyright (C) 1999-2005 by Erik Andersen <andersen@codepoet.org>
4 # Copyright (C) 2006-2014 by the Buildroot developers <buildroot@uclibc.org>
5 # Copyright (C) 2014-2016 by the Buildroot developers <buildroot@buildroot.org>
7 # This program is free software; you can redistribute it and/or modify
8 # it under the terms of the GNU General Public License as published by
9 # the Free Software Foundation; either version 2 of the License, or
10 # (at your option) any later version.
12 # This program is distributed in the hope that it will be useful,
13 # but WITHOUT ANY WARRANTY; without even the implied warranty of
14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 # General Public License for more details.
17 # You should have received a copy of the GNU General Public License
18 # along with this program; if not, write to the Free Software
19 # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
22 #--------------------------------------------------------------
23 # Just run 'make menuconfig', configure stuff, then run 'make'.
24 # You shouldn't need to mess with anything beyond this point...
25 #--------------------------------------------------------------
27 # we want bash as shell
28 SHELL := $(shell if [ -x "$$BASH" ]; then echo $$BASH; \
29 else if [ -x /bin/bash ]; then echo /bin/bash; \
32 # Trick for always running with a fixed umask
34 ifneq ($(shell umask),$(UMASK))
35 .PHONY: _all $(MAKECMDGOALS)
41 @umask $(UMASK) && $(MAKE) --no-print-directory $(MAKECMDGOALS)
45 # This is our default rule, so must come first
48 # Set and export the version string
49 export BR2_VERSION := 2016.11-git
51 # Save running make version since it's clobbered by the make package
52 RUNNING_MAKE_VERSION := $(MAKE_VERSION)
54 # Check for minimal make version (note: this check will break at make 10.x)
55 MIN_MAKE_VERSION = 3.81
56 ifneq ($(firstword $(sort $(RUNNING_MAKE_VERSION) $(MIN_MAKE_VERSION))),$(MIN_MAKE_VERSION))
57 $(error You have make '$(RUNNING_MAKE_VERSION)' installed. GNU make >= $(MIN_MAKE_VERSION) is required)
60 # Parallel execution of this Makefile is disabled because it changes
61 # the packages building order, that can be a problem for two reasons:
62 # - If a package has an unspecified optional dependency and that
63 # dependency is present when the package is built, it is used,
64 # otherwise it isn't (but compilation happily proceeds) so the end
65 # result will differ if the order is swapped due to parallel
67 # - Also changing the building order can be a problem if two packages
68 # manipulate the same file in the target directory.
70 # Taking into account the above considerations, if you still want to execute
71 # this top-level Makefile in parallel comment the ".NOTPARALLEL" line and
72 # use the -j<jobs> option when building, e.g:
73 # make -j$((`getconf _NPROCESSORS_ONLN`+1))
78 CONFIG_CONFIG_IN = Config.in
79 CONFIG = support/kconfig
80 DATE := $(shell date +%Y%m%d)
82 # Compute the full local version string so packages can use it as-is
83 # Need to export it, so it can be got from environment in children (eg. mconf)
84 export BR2_VERSION_FULL := $(BR2_VERSION)$(shell $(TOPDIR)/support/scripts/setlocalversion)
86 noconfig_targets := menuconfig nconfig gconfig xconfig config oldconfig randconfig \
87 defconfig %_defconfig allyesconfig allnoconfig silentoldconfig release \
88 randpackageconfig allyespackageconfig allnopackageconfig \
89 print-version olddefconfig distclean
91 # Some global targets do not trigger a build, but are used to collect
92 # metadata, or do various checks. When such targets are triggered,
93 # some packages should not do their configuration sanity
94 # checks. Provide them a BR_BUILDING variable set to 'y' when we're
95 # actually building and they should do their sanity checks.
97 # We're building in two situations: when MAKECMDGOALS is empty
98 # (default target is to build), or when MAKECMDGOALS contains
99 # something else than one of the nobuild_targets.
100 nobuild_targets := source source-check \
101 legal-info external-deps _external-deps \
103 ifeq ($(MAKECMDGOALS),)
105 else ifneq ($(filter-out $(nobuild_targets),$(MAKECMDGOALS)),)
109 # Include some helper macros and variables
110 include support/misc/utils.mk
112 ifneq ("$(origin O)", "command line")
114 CONFIG_DIR := $(TOPDIR)
117 # other packages might also support Linux-style out of tree builds
118 # with the O=<dir> syntax (E.G. BusyBox does). As make automatically
119 # forwards command line variable definitions those packages get very
120 # confused. Fix this by telling make to not do so
122 # strangely enough O is still passed to submakes with MAKEOVERRIDES
123 # (with make 3.81 atleast), the only thing that changes is the output
124 # of the origin function (command line -> environment).
125 # Unfortunately some packages don't look at origin (E.G. uClibc 0.9.31+)
126 # To really make O go away, we have to override it.
129 # we need to pass O= everywhere we call back into the toplevel makefile
130 EXTRAMAKEARGS = O=$(O)
134 # bash prints the name of the directory on 'cd <dir>' if CDPATH is
135 # set, so unset it here to not cause problems. Notice that the export
136 # line doesn't affect the environment of $(shell ..) calls, so
137 # explictly throw away any output from 'cd' here.
139 BASE_DIR := $(shell mkdir -p $(O) && cd $(O) >/dev/null && pwd)
140 $(if $(BASE_DIR),, $(error output directory "$(O)" does not exist))
143 # Handling of BR2_EXTERNAL.
145 # The value of BR2_EXTERNAL is stored in .br-external in the output directory.
146 # The location of the external.mk makefile fragment is computed in that file.
147 # On subsequent invocations of make, this file is read in. BR2_EXTERNAL can
148 # still be overridden on the command line, therefore the file is re-created
149 # every time make is run.
151 BR2_EXTERNAL_FILE = $(BASE_DIR)/.br-external.mk
152 -include $(BR2_EXTERNAL_FILE)
153 $(shell support/scripts/br2-external \
154 -m -o '$(BR2_EXTERNAL_FILE)' $(BR2_EXTERNAL))
156 include $(BR2_EXTERNAL_FILE)
157 ifneq ($(BR2_EXTERNAL_ERROR),)
158 $(error $(BR2_EXTERNAL_ERROR))
161 # To make sure that the environment variable overrides the .config option,
162 # set this before including .config.
163 ifneq ($(BR2_DL_DIR),)
164 DL_DIR := $(BR2_DL_DIR)
166 ifneq ($(BR2_CCACHE_DIR),)
167 BR_CACHE_DIR := $(BR2_CCACHE_DIR)
170 # Need that early, before we scan packages
171 # Avoids doing the $(or...) everytime
172 BR_GRAPH_OUT := $(or $(BR2_GRAPH_OUT),pdf)
174 BUILD_DIR := $(BASE_DIR)/build
175 BINARIES_DIR := $(BASE_DIR)/images
176 TARGET_DIR := $(BASE_DIR)/target
177 # initial definition so that 'make clean' works for most users, even without
178 # .config. HOST_DIR will be overwritten later when .config is included.
179 HOST_DIR := $(BASE_DIR)/host
180 GRAPHS_DIR := $(BASE_DIR)/graphs
182 LEGAL_INFO_DIR = $(BASE_DIR)/legal-info
183 REDIST_SOURCES_DIR_TARGET = $(LEGAL_INFO_DIR)/sources
184 REDIST_SOURCES_DIR_HOST = $(LEGAL_INFO_DIR)/host-sources
185 LICENSE_FILES_DIR_TARGET = $(LEGAL_INFO_DIR)/licenses
186 LICENSE_FILES_DIR_HOST = $(LEGAL_INFO_DIR)/host-licenses
187 LEGAL_MANIFEST_CSV_TARGET = $(LEGAL_INFO_DIR)/manifest.csv
188 LEGAL_MANIFEST_CSV_HOST = $(LEGAL_INFO_DIR)/host-manifest.csv
189 LEGAL_WARNINGS = $(LEGAL_INFO_DIR)/.warnings
190 LEGAL_REPORT = $(LEGAL_INFO_DIR)/README
192 ################################################################################
194 # staging and target directories do NOT list these as
195 # dependencies anywhere else
197 ################################################################################
198 $(BUILD_DIR) $(TARGET_DIR) $(HOST_DIR) $(BINARIES_DIR) $(LEGAL_INFO_DIR) $(REDIST_SOURCES_DIR_TARGET) $(REDIST_SOURCES_DIR_HOST):
201 BR2_CONFIG = $(CONFIG_DIR)/.config
203 # Pull in the user's configuration file
204 ifeq ($(filter $(noconfig_targets),$(MAKECMDGOALS)),)
205 -include $(BR2_CONFIG)
208 # timezone and locale may affect build output
209 ifeq ($(BR2_REPRODUCIBLE),y)
215 # To put more focus on warnings, be less verbose as default
216 # Use 'make V=1' to see the full commands
217 ifeq ("$(origin V)", "command line")
218 KBUILD_VERBOSE = $(V)
220 ifndef KBUILD_VERBOSE
224 ifeq ($(KBUILD_VERBOSE),1)
234 # kconfig uses CONFIG_SHELL
235 CONFIG_SHELL := $(SHELL)
237 export SHELL CONFIG_SHELL Q KBUILD_VERBOSE
247 HOSTCC := $(shell which $(HOSTCC) || type -p $(HOSTCC) || echo gcc)
249 HOSTCC_NOCCACHE := $(HOSTCC)
252 HOSTCXX := $(shell which $(HOSTCXX) || type -p $(HOSTCXX) || echo g++)
254 HOSTCXX_NOCCACHE := $(HOSTCXX)
268 HOSTOBJCOPY := objcopy
273 HOSTAR := $(shell which $(HOSTAR) || type -p $(HOSTAR) || echo ar)
274 HOSTAS := $(shell which $(HOSTAS) || type -p $(HOSTAS) || echo as)
275 HOSTCPP := $(shell which $(HOSTCPP) || type -p $(HOSTCPP) || echo cpp)
276 HOSTLD := $(shell which $(HOSTLD) || type -p $(HOSTLD) || echo ld)
277 HOSTLN := $(shell which $(HOSTLN) || type -p $(HOSTLN) || echo ln)
278 HOSTNM := $(shell which $(HOSTNM) || type -p $(HOSTNM) || echo nm)
279 HOSTOBJCOPY := $(shell which $(HOSTOBJCOPY) || type -p $(HOSTOBJCOPY) || echo objcopy)
280 HOSTRANLIB := $(shell which $(HOSTRANLIB) || type -p $(HOSTRANLIB) || echo ranlib)
282 export HOSTAR HOSTAS HOSTCC HOSTCXX HOSTLD
283 export HOSTCC_NOCCACHE HOSTCXX_NOCCACHE
285 # Determine the userland we are running on.
287 # Note that, despite its name, we are not interested in the actual
288 # architecture name. This is mostly used to determine whether some
289 # of the binary tools (e.g. pre-built external toolchains) can run
290 # on the current host. So we need to know if the userland we're
291 # running on can actually run those toolchains.
293 # For example, a 64-bit prebuilt toolchain will not run on a 64-bit
294 # kernel if the userland is 32-bit (e.g. in a chroot for example).
296 # So, we extract the first part of the tuple the host gcc was
297 # configured to generate code for; we assume this is our userland.
299 export HOSTARCH := $(shell LC_ALL=C $(HOSTCC_NOCCACHE) -v 2>&1 | \
300 sed -e '/^Target: \([^-]*\).*/!d' \
303 -e 's/sun4u/sparc64/' \
306 -e 's/ppc64/powerpc64/' \
307 -e 's/ppc/powerpc/' \
308 -e 's/macppc/powerpc/' \
311 HOSTCC_VERSION := $(shell $(HOSTCC_NOCCACHE) --version | \
312 sed -n -r 's/^.* ([0-9]*)\.([0-9]*)\.([0-9]*)[ ]*.*/\1 \2/p')
314 # For gcc >= 5.x, we only need the major version.
315 ifneq ($(firstword $(HOSTCC_VERSION)),4)
316 HOSTCC_VERSION := $(firstword $(HOSTCC_VERSION))
319 # Make sure pkg-config doesn't look outside the buildroot tree
320 HOST_PKG_CONFIG_PATH := $(PKG_CONFIG_PATH)
321 unexport PKG_CONFIG_PATH
322 unexport PKG_CONFIG_SYSROOT_DIR
323 unexport PKG_CONFIG_LIBDIR
325 # Having DESTDIR set in the environment confuses the installation
326 # steps of some packages.
329 # Causes breakage with packages that needs host-ruby
332 include package/pkg-utils.mk
333 include package/doc-asciidoc.mk
335 ifeq ($(BR2_HAVE_DOT_CONFIG),y)
337 ################################################################################
339 # Hide troublesome environment variables from sub processes
341 ################################################################################
342 unexport CROSS_COMPILE
352 unexport GREP_OPTIONS
360 GNU_HOST_NAME := $(shell support/gnuconfig/config.guess)
365 # silent mode requested?
366 QUIET := $(if $(findstring s,$(filter-out --%,$(MAKEFLAGS))),-q)
368 # Strip off the annoying quoting
369 ARCH := $(call qstrip,$(BR2_ARCH))
371 KERNEL_ARCH := $(shell echo "$(ARCH)" | sed -e "s/-.*//" \
372 -e s/i.86/i386/ -e s/sun4u/sparc64/ \
375 -e s/arm.*/arm/ -e s/sa110/arm/ \
376 -e s/aarch64.*/arm64/ \
377 -e s/bfin/blackfin/ \
378 -e s/parisc64/parisc/ \
379 -e s/powerpc64.*/powerpc/ \
380 -e s/ppc.*/powerpc/ -e s/mips.*/mips/ \
382 -e s/microblazeel/microblaze/)
384 ZCAT := $(call qstrip,$(BR2_ZCAT))
385 BZCAT := $(call qstrip,$(BR2_BZCAT))
386 XZCAT := $(call qstrip,$(BR2_XZCAT))
387 TAR_OPTIONS = $(call qstrip,$(BR2_TAR_OPTIONS)) -xf
389 # packages compiled for the host go here
390 HOST_DIR := $(call qstrip,$(BR2_HOST_DIR))
392 # Quotes are needed for spaces and all in the original PATH content.
393 BR_PATH = "$(HOST_DIR)/bin:$(HOST_DIR)/sbin:$(HOST_DIR)/usr/bin:$(HOST_DIR)/usr/sbin:$(PATH)"
395 # Location of a file giving a big fat warning that output/target
396 # should not be used as the root filesystem.
397 TARGET_DIR_WARNING_FILE = $(TARGET_DIR)/THIS_IS_NOT_YOUR_ROOT_FILESYSTEM
399 ifeq ($(BR2_CCACHE),y)
400 CCACHE := $(HOST_DIR)/usr/bin/ccache
401 BR_CACHE_DIR ?= $(call qstrip,$(BR2_CCACHE_DIR))
403 HOSTCC := $(CCACHE) $(HOSTCC)
404 HOSTCXX := $(CCACHE) $(HOSTCXX)
409 # Scripts in support/ or post-build scripts may need to reference
410 # these locations, so export them so it is easier to use
412 export BR2_REPRODUCIBLE
419 ################################################################################
421 # You should probably leave this stuff alone unless you know
422 # what you are doing.
424 ################################################################################
428 # Include legacy before the other things, because package .mk files
430 include Makefile.legacy
432 include package/Makefile.in
433 include support/dependencies/dependencies.mk
435 include toolchain/*.mk
436 include toolchain/*/*.mk
438 # Include the package override file if one has been provided in the
440 PACKAGE_OVERRIDE_FILE = $(call qstrip,$(BR2_PACKAGE_OVERRIDE_FILE))
441 ifneq ($(PACKAGE_OVERRIDE_FILE),)
442 -include $(PACKAGE_OVERRIDE_FILE)
445 include $(sort $(wildcard package/*/*.mk))
447 include boot/common.mk
448 include linux/linux.mk
451 # If using a br2-external tree, the BR2_EXTERNAL_$(NAME)_PATH variable
452 # is also present in the .config file. Since .config is included after
453 # we defined BR2_EXTERNAL_$(NAME)_PATH in the Makefile, the value in
454 # that variable is quoted. We just include the generated Makefile fragment
455 # .br2-external.mk a third time, which will set that variable to the
457 include $(BR2_EXTERNAL_FILE)
459 # Nothing to include if no BR2_EXTERNAL tree in use
460 include $(BR2_EXTERNAL_MK)
462 # Now we are sure we have all the packages scanned and defined. We now
463 # check for each package in the list of enabled packages, that all its
464 # dependencies are indeed enabled.
466 # Only trigger the check for default builds. If the user forces building
467 # a package, even if not enabled in the configuration, we want to accept
470 ifeq ($(MAKECMDGOALS),)
472 define CHECK_ONE_DEPENDENCY
473 ifeq ($$($(2)_TYPE),target)
474 ifeq ($$($(2)_IS_VIRTUAL),)
475 ifneq ($$($$($(2)_KCONFIG_VAR)),y)
476 $$(error $$($(2)_NAME) is in the dependency chain of $$($(1)_NAME) that \
477 has added it to its _DEPENDENCIES variable without selecting it or \
478 depending on it from Config.in)
484 $(foreach pkg,$(call UPPERCASE,$(PACKAGES)),\
485 $(foreach dep,$(call UPPERCASE,$($(pkg)_FINAL_ALL_DEPENDENCIES)),\
486 $(eval $(call CHECK_ONE_DEPENDENCY,$(pkg),$(dep))$(sep))))
490 dirs: $(BUILD_DIR) $(STAGING_DIR) $(TARGET_DIR) \
491 $(HOST_DIR) $(BINARIES_DIR)
493 $(BUILD_DIR)/buildroot-config/auto.conf: $(BR2_CONFIG)
494 $(MAKE1) $(EXTRAMAKEARGS) HOSTCC="$(HOSTCC_NOCCACHE)" HOSTCXX="$(HOSTCXX_NOCCACHE)" silentoldconfig
496 prepare: $(BUILD_DIR)/buildroot-config/auto.conf
498 world: target-post-image
500 .PHONY: all world toolchain dirs clean distclean source outputmakefile \
501 legal-info legal-info-prepare legal-info-clean printvars help \
502 list-defconfigs target-finalize target-post-image source-check
504 # Populating the staging with the base directories is handled by the skeleton package
506 @mkdir -p $(STAGING_DIR)
507 @ln -snf $(STAGING_DIR) $(BASE_DIR)/staging
509 RSYNC_VCS_EXCLUSIONS = \
510 --exclude .svn --exclude .git --exclude .hg --exclude .bzr \
513 STRIP_FIND_CMD = find $(TARGET_DIR)
514 ifneq (,$(call qstrip,$(BR2_STRIP_EXCLUDE_DIRS)))
515 STRIP_FIND_CMD += \( $(call finddirclauses,$(TARGET_DIR),$(call qstrip,$(BR2_STRIP_EXCLUDE_DIRS))) \) -prune -o
517 STRIP_FIND_CMD += -type f \( -perm /111 -o -name '*.so*' \)
519 # - libpthread.so: a non-stripped libpthread shared library is needed for
520 # proper debugging of pthread programs using gdb.
521 # - ld.so: a non-stripped dynamic linker library is needed for valgrind
522 # - kernel modules (*.ko): do not function properly when stripped like normal
523 # applications and libraries. Normally kernel modules are already excluded
524 # by the executable permission check above, so the explicit exclusion is only
525 # done for kernel modules with incorrect permissions.
526 STRIP_FIND_CMD += -not \( $(call findfileclauses,libpthread*.so* ld-*.so* *.ko $(call qstrip,$(BR2_STRIP_EXCLUDE_FILES))) \) -print0
528 ifeq ($(BR2_ECLIPSE_REGISTER),y)
529 define TOOLCHAIN_ECLIPSE_REGISTER
530 ./support/scripts/eclipse-register-toolchain `readlink -f $(O)` \
531 $(notdir $(TARGET_CROSS)) $(BR2_ARCH)
533 TARGET_FINALIZE_HOOKS += TOOLCHAIN_ECLIPSE_REGISTER
536 # Generate locale data. Basically, we call the localedef program
537 # (built by the host-localedef package) for each locale. The input
538 # data comes preferably from the toolchain, or if the toolchain does
539 # not have them (Linaro toolchains), we use the ones available on the
541 ifeq ($(BR2_TOOLCHAIN_USES_GLIBC),y)
542 GLIBC_GENERATE_LOCALES = $(call qstrip,$(BR2_GENERATE_LOCALE))
543 ifneq ($(GLIBC_GENERATE_LOCALES),)
544 PACKAGES += host-localedef
546 define GENERATE_GLIBC_LOCALES
547 $(Q)mkdir -p $(TARGET_DIR)/usr/lib/locale/
548 $(Q)for locale in $(GLIBC_GENERATE_LOCALES) ; do \
549 inputfile=`echo $${locale} | cut -f1 -d'.'` ; \
550 charmap=`echo $${locale} | cut -f2 -d'.' -s` ; \
551 if test -z "$${charmap}" ; then \
554 echo "Generating locale $${inputfile}.$${charmap}" ; \
555 I18NPATH=$(STAGING_DIR)/usr/share/i18n:/usr/share/i18n \
556 $(HOST_DIR)/usr/bin/localedef \
557 --prefix=$(TARGET_DIR) \
558 --$(call LOWERCASE,$(BR2_ENDIAN))-endian \
559 -i $${inputfile} -f $${charmap} \
563 TARGET_FINALIZE_HOOKS += GENERATE_GLIBC_LOCALES
567 ifeq ($(BR2_ENABLE_LOCALE_PURGE),y)
568 LOCALE_WHITELIST = $(BUILD_DIR)/locales.nopurge
569 LOCALE_NOPURGE = $(call qstrip,$(BR2_ENABLE_LOCALE_WHITELIST))
571 # This piece of junk does the following:
572 # First collect the whitelist in a file.
573 # Then go over all the locale dirs and for each subdir, check if it exists
574 # in the whitelist file. If it doesn't, kill it.
575 # Finally, specifically for X11, regenerate locale.dir from the whitelist.
577 rm -f $(LOCALE_WHITELIST)
578 for i in $(LOCALE_NOPURGE) locale-archive; do echo $$i >> $(LOCALE_WHITELIST); done
580 for dir in $(wildcard $(addprefix $(TARGET_DIR),/usr/share/locale /usr/share/X11/locale /usr/lib/locale)); \
582 for langdir in $$dir/*; \
584 if [ -e "$${langdir}" ]; \
586 grep -qx "$${langdir##*/}" $(LOCALE_WHITELIST) || rm -rf $$langdir; \
590 if [ -d $(TARGET_DIR)/usr/share/X11/locale ]; \
592 for lang in $(LOCALE_NOPURGE); \
594 if [ -f $(TARGET_DIR)/usr/share/X11/locale/$$lang/XLC_LOCALE ]; \
596 echo "$$lang/XLC_LOCALE: $$lang"; \
598 done > $(TARGET_DIR)/usr/share/X11/locale/locale.dir; \
601 TARGET_FINALIZE_HOOKS += PURGE_LOCALES
604 $(TARGETS_ROOTFS): target-finalize
606 target-finalize: $(PACKAGES)
607 @$(call MESSAGE,"Finalizing target directory")
608 $(foreach hook,$(TARGET_FINALIZE_HOOKS),$($(hook))$(sep))
609 rm -rf $(TARGET_DIR)/usr/include $(TARGET_DIR)/usr/share/aclocal \
610 $(TARGET_DIR)/usr/lib/pkgconfig $(TARGET_DIR)/usr/share/pkgconfig \
611 $(TARGET_DIR)/usr/lib/cmake $(TARGET_DIR)/usr/share/cmake
612 find $(TARGET_DIR)/usr/{lib,share}/ -name '*.cmake' -print0 | xargs -0 rm -f
613 find $(TARGET_DIR)/lib $(TARGET_DIR)/usr/lib $(TARGET_DIR)/usr/libexec \
614 \( -name '*.a' -o -name '*.la' \) -print0 | xargs -0 rm -f
615 ifneq ($(BR2_PACKAGE_GDB),y)
616 rm -rf $(TARGET_DIR)/usr/share/gdb
618 ifneq ($(BR2_PACKAGE_BASH),y)
619 rm -rf $(TARGET_DIR)/usr/share/bash-completion
621 ifneq ($(BR2_PACKAGE_ZSH),y)
622 rm -rf $(TARGET_DIR)/usr/share/zsh
624 rm -rf $(TARGET_DIR)/usr/man $(TARGET_DIR)/usr/share/man
625 rm -rf $(TARGET_DIR)/usr/info $(TARGET_DIR)/usr/share/info
626 rm -rf $(TARGET_DIR)/usr/doc $(TARGET_DIR)/usr/share/doc
627 rm -rf $(TARGET_DIR)/usr/share/gtk-doc
628 -rmdir $(TARGET_DIR)/usr/share 2>/dev/null
629 $(STRIP_FIND_CMD) | xargs -0 $(STRIPCMD) 2>/dev/null || true
631 # See http://sourceware.org/gdb/wiki/FAQ, "GDB does not see any threads
632 # besides the one in which crash occurred; or SIGTRAP kills my program when
633 # I set a breakpoint"
634 ifeq ($(BR2_TOOLCHAIN_HAS_THREADS),y)
635 find $(TARGET_DIR)/lib -type f -name 'libpthread*.so*' | \
636 xargs -r $(STRIPCMD) $(STRIP_STRIP_DEBUG)
639 # Valgrind needs ld.so with enough information, so only strip
641 find $(TARGET_DIR)/lib -type f -name 'ld-*.so*' | \
642 xargs -r $(STRIPCMD) $(STRIP_STRIP_DEBUG)
643 test -f $(TARGET_DIR)/etc/ld.so.conf && \
644 { echo "ERROR: we shouldn't have a /etc/ld.so.conf file"; exit 1; } || true
645 test -d $(TARGET_DIR)/etc/ld.so.conf.d && \
646 { echo "ERROR: we shouldn't have a /etc/ld.so.conf.d directory"; exit 1; } || true
647 mkdir -p $(TARGET_DIR)/etc
649 echo "NAME=Buildroot"; \
650 echo "VERSION=$(BR2_VERSION_FULL)"; \
651 echo "ID=buildroot"; \
652 echo "VERSION_ID=$(BR2_VERSION)"; \
653 echo "PRETTY_NAME=\"Buildroot $(BR2_VERSION)\"" \
654 ) > $(TARGET_DIR)/etc/os-release
656 @$(foreach d, $(call qstrip,$(BR2_ROOTFS_OVERLAY)), \
657 $(call MESSAGE,"Copying overlay $(d)"); \
658 rsync -a --ignore-times --keep-dirlinks $(RSYNC_VCS_EXCLUSIONS) \
659 --chmod=u=rwX,go=rX --exclude .empty --exclude '*~' \
660 $(d)/ $(TARGET_DIR)$(sep))
662 @$(foreach s, $(call qstrip,$(BR2_ROOTFS_POST_BUILD_SCRIPT)), \
663 $(call MESSAGE,"Executing post-build script $(s)"); \
664 $(EXTRA_ENV) $(s) $(TARGET_DIR) $(call qstrip,$(BR2_ROOTFS_POST_SCRIPT_ARGS))$(sep))
666 target-post-image: $(TARGETS_ROOTFS) target-finalize
667 @$(foreach s, $(call qstrip,$(BR2_ROOTFS_POST_IMAGE_SCRIPT)), \
668 $(call MESSAGE,"Executing post-image script $(s)"); \
669 $(EXTRA_ENV) $(s) $(BINARIES_DIR) $(call qstrip,$(BR2_ROOTFS_POST_SCRIPT_ARGS))$(sep))
671 source: $(foreach p,$(PACKAGES),$(p)-all-source)
673 _external-deps: $(foreach p,$(PACKAGES),$(p)-all-external-deps)
675 @$(MAKE1) -Bs $(EXTRAMAKEARGS) _external-deps | sort -u
677 # check if download URLs are outdated
678 source-check: $(foreach p,$(PACKAGES),$(p)-all-source-check)
681 @rm -fr $(LEGAL_INFO_DIR)
683 legal-info-prepare: $(LEGAL_INFO_DIR)
684 @$(call MESSAGE,"Collecting legal info")
685 @$(call legal-license-file,buildroot,COPYING,COPYING,HOST)
686 @$(call legal-manifest,PACKAGE,VERSION,LICENSE,LICENSE FILES,SOURCE ARCHIVE,SOURCE SITE,TARGET)
687 @$(call legal-manifest,PACKAGE,VERSION,LICENSE,LICENSE FILES,SOURCE ARCHIVE,SOURCE SITE,HOST)
688 @$(call legal-manifest,buildroot,$(BR2_VERSION_FULL),GPLv2+,COPYING,not saved,not saved,HOST)
689 @$(call legal-warning,the Buildroot source code has not been saved)
690 @cp $(BR2_CONFIG) $(LEGAL_INFO_DIR)/buildroot.config
692 legal-info: dirs legal-info-clean legal-info-prepare $(foreach p,$(PACKAGES),$(p)-all-legal-info) \
693 $(REDIST_SOURCES_DIR_TARGET) $(REDIST_SOURCES_DIR_HOST)
694 @cat support/legal-info/README.header >>$(LEGAL_REPORT)
695 @if [ -r $(LEGAL_WARNINGS) ]; then \
696 cat support/legal-info/README.warnings-header \
697 $(LEGAL_WARNINGS) >>$(LEGAL_REPORT); \
698 cat $(LEGAL_WARNINGS); fi
699 @rm -f $(LEGAL_WARNINGS)
700 @(cd $(LEGAL_INFO_DIR); \
701 find * -type f -exec sha256sum {} + | LC_ALL=C sort -k2 \
702 >.legal-info.sha256; \
703 mv .legal-info.sha256 legal-info.sha256)
704 @echo "Legal info produced in $(LEGAL_INFO_DIR)"
707 @echo $(PACKAGES) $(TARGETS_ROOTFS)
709 graph-build: $(O)/build/build-time.log
710 @install -d $(GRAPHS_DIR)
711 $(foreach o,name build duration,./support/scripts/graph-build-time \
712 --type=histogram --order=$(o) --input=$(<) \
713 --output=$(GRAPHS_DIR)/build.hist-$(o).$(BR_GRAPH_OUT) \
714 $(if $(BR2_GRAPH_ALT),--alternate-colors)$(sep))
715 $(foreach t,packages steps,./support/scripts/graph-build-time \
716 --type=pie-$(t) --input=$(<) \
717 --output=$(GRAPHS_DIR)/build.pie-$(t).$(BR_GRAPH_OUT) \
718 $(if $(BR2_GRAPH_ALT),--alternate-colors)$(sep))
720 graph-depends-requirements:
721 @dot -? >/dev/null 2>&1 || \
722 { echo "ERROR: The 'dot' program from Graphviz is needed for graph-depends" >&2; exit 1; }
724 graph-depends: graph-depends-requirements
725 @$(INSTALL) -d $(GRAPHS_DIR)
726 @cd "$(CONFIG_DIR)"; \
727 $(TOPDIR)/support/scripts/graph-depends $(BR2_GRAPH_DEPS_OPTS) \
728 -o $(GRAPHS_DIR)/$(@).dot
729 dot $(BR2_GRAPH_DOT_OPTS) -T$(BR_GRAPH_OUT) \
730 -o $(GRAPHS_DIR)/$(@).$(BR_GRAPH_OUT) \
731 $(GRAPHS_DIR)/$(@).dot
734 $(Q)mkdir -p $(GRAPHS_DIR)
735 $(Q)$(TOPDIR)/support/scripts/size-stats --builddir $(BASE_DIR) \
736 --graph $(GRAPHS_DIR)/graph-size.$(BR_GRAPH_OUT) \
737 --file-size-csv $(GRAPHS_DIR)/file-size-stats.csv \
738 --package-size-csv $(GRAPHS_DIR)/package-size-stats.csv
741 @cd "$(CONFIG_DIR)"; \
742 $(TOPDIR)/support/scripts/graph-depends -C
744 else # ifeq ($(BR2_HAVE_DOT_CONFIG),y)
748 endif # ifeq ($(BR2_HAVE_DOT_CONFIG),y)
751 # ---------------------------------------------------------------------------
753 HOSTCFLAGS = $(CFLAGS_FOR_BUILD)
756 .PHONY: prepare-kconfig
757 prepare-kconfig: outputmakefile $(BUILD_DIR)/.br2-external.in
759 $(BUILD_DIR)/buildroot-config/%onf:
760 mkdir -p $(@D)/lxdialog
761 PKG_CONFIG_PATH="$(HOST_PKG_CONFIG_PATH)" $(MAKE) CC="$(HOSTCC_NOCCACHE)" HOSTCC="$(HOSTCC_NOCCACHE)" \
762 obj=$(@D) -C $(CONFIG) -f Makefile.br $(@F)
764 DEFCONFIG = $(call qstrip,$(BR2_DEFCONFIG))
766 # We don't want to fully expand BR2_DEFCONFIG here, so Kconfig will
767 # recognize that if it's still at its default $(CONFIG_DIR)/defconfig
768 COMMON_CONFIG_ENV = \
769 BR2_DEFCONFIG='$(call qstrip,$(value BR2_DEFCONFIG))' \
770 KCONFIG_AUTOCONFIG=$(BUILD_DIR)/buildroot-config/auto.conf \
771 KCONFIG_AUTOHEADER=$(BUILD_DIR)/buildroot-config/autoconf.h \
772 KCONFIG_TRISTATE=$(BUILD_DIR)/buildroot-config/tristate.config \
773 BR2_CONFIG=$(BR2_CONFIG) \
774 HOST_GCC_VERSION="$(HOSTCC_VERSION)" \
775 BUILD_DIR=$(BUILD_DIR) \
778 xconfig: $(BUILD_DIR)/buildroot-config/qconf prepare-kconfig
779 @$(COMMON_CONFIG_ENV) $< $(CONFIG_CONFIG_IN)
781 gconfig: $(BUILD_DIR)/buildroot-config/gconf prepare-kconfig
782 @$(COMMON_CONFIG_ENV) srctree=$(TOPDIR) $< $(CONFIG_CONFIG_IN)
784 menuconfig: $(BUILD_DIR)/buildroot-config/mconf prepare-kconfig
785 @$(COMMON_CONFIG_ENV) $< $(CONFIG_CONFIG_IN)
787 nconfig: $(BUILD_DIR)/buildroot-config/nconf prepare-kconfig
788 @$(COMMON_CONFIG_ENV) $< $(CONFIG_CONFIG_IN)
790 config: $(BUILD_DIR)/buildroot-config/conf prepare-kconfig
791 @$(COMMON_CONFIG_ENV) $< $(CONFIG_CONFIG_IN)
793 # For the config targets that automatically select options, we pass
794 # SKIP_LEGACY=y to disable the legacy options. However, in that case
795 # no values are set for the legacy options so a subsequent oldconfig
796 # will query them. Therefore, run an additional olddefconfig.
798 oldconfig: $(BUILD_DIR)/buildroot-config/conf prepare-kconfig
799 @$(COMMON_CONFIG_ENV) $< --oldconfig $(CONFIG_CONFIG_IN)
801 randconfig: $(BUILD_DIR)/buildroot-config/conf prepare-kconfig
802 @$(COMMON_CONFIG_ENV) SKIP_LEGACY=y $< --randconfig $(CONFIG_CONFIG_IN)
803 @$(COMMON_CONFIG_ENV) $< --olddefconfig $(CONFIG_CONFIG_IN) >/dev/null
805 allyesconfig: $(BUILD_DIR)/buildroot-config/conf prepare-kconfig
806 @$(COMMON_CONFIG_ENV) SKIP_LEGACY=y $< --allyesconfig $(CONFIG_CONFIG_IN)
807 @$(COMMON_CONFIG_ENV) $< --olddefconfig $(CONFIG_CONFIG_IN) >/dev/null
809 allnoconfig: $(BUILD_DIR)/buildroot-config/conf prepare-kconfig
810 @$(COMMON_CONFIG_ENV) SKIP_LEGACY=y $< --allnoconfig $(CONFIG_CONFIG_IN)
811 @$(COMMON_CONFIG_ENV) $< --olddefconfig $(CONFIG_CONFIG_IN) >/dev/null
813 randpackageconfig: $(BUILD_DIR)/buildroot-config/conf prepare-kconfig
814 @grep -v BR2_PACKAGE_ $(BR2_CONFIG) > $(CONFIG_DIR)/.config.nopkg
815 @$(COMMON_CONFIG_ENV) SKIP_LEGACY=y \
816 KCONFIG_ALLCONFIG=$(CONFIG_DIR)/.config.nopkg \
817 $< --randconfig $(CONFIG_CONFIG_IN)
818 @rm -f $(CONFIG_DIR)/.config.nopkg
819 @$(COMMON_CONFIG_ENV) $< --olddefconfig $(CONFIG_CONFIG_IN) >/dev/null
821 allyespackageconfig: $(BUILD_DIR)/buildroot-config/conf prepare-kconfig
822 @grep -v BR2_PACKAGE_ $(BR2_CONFIG) > $(CONFIG_DIR)/.config.nopkg
823 @$(COMMON_CONFIG_ENV) SKIP_LEGACY=y \
824 KCONFIG_ALLCONFIG=$(CONFIG_DIR)/.config.nopkg \
825 $< --allyesconfig $(CONFIG_CONFIG_IN)
826 @rm -f $(CONFIG_DIR)/.config.nopkg
827 @$(COMMON_CONFIG_ENV) $< --olddefconfig $(CONFIG_CONFIG_IN) >/dev/null
829 allnopackageconfig: $(BUILD_DIR)/buildroot-config/conf prepare-kconfig
830 @grep -v BR2_PACKAGE_ $(BR2_CONFIG) > $(CONFIG_DIR)/.config.nopkg
831 @$(COMMON_CONFIG_ENV) SKIP_LEGACY=y \
832 KCONFIG_ALLCONFIG=$(CONFIG_DIR)/.config.nopkg \
833 $< --allnoconfig $(CONFIG_CONFIG_IN)
834 @rm -f $(CONFIG_DIR)/.config.nopkg
835 @$(COMMON_CONFIG_ENV) $< --olddefconfig $(CONFIG_CONFIG_IN) >/dev/null
837 silentoldconfig: $(BUILD_DIR)/buildroot-config/conf prepare-kconfig
838 $(COMMON_CONFIG_ENV) $< --silentoldconfig $(CONFIG_CONFIG_IN)
840 olddefconfig: $(BUILD_DIR)/buildroot-config/conf prepare-kconfig
841 $(COMMON_CONFIG_ENV) $< --olddefconfig $(CONFIG_CONFIG_IN)
843 defconfig: $(BUILD_DIR)/buildroot-config/conf prepare-kconfig
844 @$(COMMON_CONFIG_ENV) $< --defconfig$(if $(DEFCONFIG),=$(DEFCONFIG)) $(CONFIG_CONFIG_IN)
846 define percent_defconfig
847 # Override the BR2_DEFCONFIG from COMMON_CONFIG_ENV with the new defconfig
848 %_defconfig: $(BUILD_DIR)/buildroot-config/conf $(1)/configs/%_defconfig prepare-kconfig
849 @$$(COMMON_CONFIG_ENV) BR2_DEFCONFIG=$(1)/configs/$$@ \
850 $$< --defconfig=$(1)/configs/$$@ $$(CONFIG_CONFIG_IN)
852 $(eval $(foreach d,$(TOPDIR) $(if $(BR2_EXTERNAL_NAME),$(BR2_EXTERNAL_$(BR2_EXTERNAL_NAME)_PATH)),$(call percent_defconfig,$(d))$(sep)))
854 savedefconfig: $(BUILD_DIR)/buildroot-config/conf prepare-kconfig
855 @$(COMMON_CONFIG_ENV) $< \
856 --savedefconfig=$(if $(DEFCONFIG),$(DEFCONFIG),$(CONFIG_DIR)/defconfig) \
858 @$(SED) '/BR2_DEFCONFIG=/d' $(if $(DEFCONFIG),$(DEFCONFIG),$(CONFIG_DIR)/defconfig)
860 .PHONY: defconfig savedefconfig
862 ################################################################################
864 # Cleanup and misc junk
866 ################################################################################
868 # outputmakefile generates a Makefile in the output directory, if using a
869 # separate output directory. This allows convenient use of make in the
872 ifeq ($(NEED_WRAPPER),y)
873 $(Q)$(TOPDIR)/support/scripts/mkmakefile $(TOPDIR) $(O)
876 # Even though the target is a real file, we mark it as PHONY as we
877 # want it to be re-generated each time make is invoked, in case the
878 # value of BR2_EXTERNAL is changed.
879 .PHONY: $(BUILD_DIR)/.br2-external.in
880 $(BUILD_DIR)/.br2-external.in: $(BUILD_DIR)
881 $(Q)support/scripts/br2-external -k -o "$(@)" $(BR2_EXTERNAL)
883 # printvars prints all the variables currently defined in our
884 # Makefiles. Alternatively, if a non-empty VARS variable is passed,
885 # only the variables matching the make pattern passed in VARS are
889 $(sort $(if $(VARS),$(filter $(VARS),$(.VARIABLES)),$(.VARIABLES))), \
890 $(if $(filter-out environment% default automatic, \
892 $(info $V=$($V) ($(value $V)))))
895 rm -rf $(TARGET_DIR) $(BINARIES_DIR) $(HOST_DIR) \
896 $(BUILD_DIR) $(BASE_DIR)/staging \
897 $(LEGAL_INFO_DIR) $(GRAPHS_DIR)
903 rm -rf $(TOPDIR)/dl $(BR2_CONFIG) $(CONFIG_DIR)/.config.old $(CONFIG_DIR)/..config.tmp \
904 $(CONFIG_DIR)/.auto.deps $(BR2_EXTERNAL_FILE)
908 @echo ' clean - delete all files created by build'
909 @echo ' distclean - delete all non-source files (including .config)'
912 @echo ' all - make world'
913 @echo ' toolchain - build toolchain'
915 @echo 'Configuration:'
916 @echo ' menuconfig - interactive curses-based configurator'
917 @echo ' nconfig - interactive ncurses-based configurator'
918 @echo ' xconfig - interactive Qt-based configurator'
919 @echo ' gconfig - interactive GTK-based configurator'
920 @echo ' oldconfig - resolve any unresolved symbols in .config'
921 @echo ' silentoldconfig - Same as oldconfig, but quietly, additionally update deps'
922 @echo ' olddefconfig - Same as silentoldconfig but sets new symbols to their default value'
923 @echo ' randconfig - New config with random answer to all options'
924 @echo ' defconfig - New config with default answer to all options'
925 @echo ' BR2_DEFCONFIG, if set, is used as input'
926 @echo ' savedefconfig - Save current config to BR2_DEFCONFIG (minimal config)'
927 @echo ' allyesconfig - New config where all options are accepted with yes'
928 @echo ' allnoconfig - New config where all options are answered with no'
929 @echo ' randpackageconfig - New config with random answer to package options'
930 @echo ' allyespackageconfig - New config where pkg options are accepted with yes'
931 @echo ' allnopackageconfig - New config where package options are answered with no'
933 @echo 'Package-specific:'
934 @echo ' <pkg> - Build and install <pkg> and all its dependencies'
935 @echo ' <pkg>-source - Only download the source files for <pkg>'
936 @echo ' <pkg>-extract - Extract <pkg> sources'
937 @echo ' <pkg>-patch - Apply patches to <pkg>'
938 @echo ' <pkg>-depends - Build <pkg>'\''s dependencies'
939 @echo ' <pkg>-configure - Build <pkg> up to the configure step'
940 @echo ' <pkg>-build - Build <pkg> up to the build step'
941 @echo ' <pkg>-graph-depends - Generate a graph of <pkg>'\''s dependencies'
942 @echo ' <pkg>-dirclean - Remove <pkg> build directory'
943 @echo ' <pkg>-reconfigure - Restart the build from the configure step'
944 @echo ' <pkg>-rebuild - Restart the build from the build step'
945 $(foreach p,$(HELP_PACKAGES), \
947 @echo '$($(p)_NAME):' $(sep) \
948 $($(p)_HELP_CMDS)$(sep))
950 @echo 'Documentation:'
951 @echo ' manual - build manual in all formats'
952 @echo ' manual-html - build manual in HTML'
953 @echo ' manual-split-html - build manual in split HTML'
954 @echo ' manual-pdf - build manual in PDF'
955 @echo ' manual-text - build manual in text'
956 @echo ' manual-epub - build manual in ePub'
957 @echo ' graph-build - generate graphs of the build times'
958 @echo ' graph-depends - generate graph of the dependency tree'
959 @echo ' graph-size - generate stats of the filesystem size'
960 @echo ' list-defconfigs - list all defconfigs (pre-configured minimal systems)'
962 @echo 'Miscellaneous:'
963 @echo ' source - download all sources needed for offline-build'
964 @echo ' source-check - check selected packages for valid download URLs'
965 @echo ' external-deps - list external packages used'
966 @echo ' legal-info - generate info about license compliance'
968 @echo ' make V=0|1 - 0 => quiet build (default), 1 => verbose build'
969 @echo ' make O=dir - Locate all output files in "dir", including .config'
971 @echo 'For further details, see README, generate the Buildroot manual, or consult'
972 @echo 'it on-line at http://buildroot.org/docs.html'
976 @echo 'Built-in configs:'
977 @$(foreach b, $(sort $(notdir $(wildcard $(TOPDIR)/configs/*_defconfig))), \
978 printf " %-35s - Build for %s\\n" $(b) $(b:_defconfig=);)
979 ifneq ($(BR2_EXTERNAL_NAME),)
980 ifneq ($(wildcard $(BR2_EXTERNAL_$(BR2_EXTERNAL_NAME)_PATH)/configs/*_defconfig),)
982 @echo 'User-provided configs:'
983 @$(foreach b, $(sort $(notdir $(wildcard $(BR2_EXTERNAL_$(BR2_EXTERNAL_NAME)_PATH)/configs/*_defconfig))), \
984 printf " %-35s - Build for %s\\n" $(b) $(b:_defconfig=);)
989 release: OUT = buildroot-$(BR2_VERSION)
991 # Create release tarballs. We need to fiddle a bit to add the generated
992 # documentation to the git output
994 git archive --format=tar --prefix=$(OUT)/ HEAD > $(OUT).tar
995 $(MAKE) O=$(OUT) manual-html manual-text manual-pdf
996 $(MAKE) O=$(OUT) manual-clean
997 tar rf $(OUT).tar $(OUT)
998 gzip -9 -c < $(OUT).tar > $(OUT).tar.gz
999 bzip2 -9 -c < $(OUT).tar > $(OUT).tar.bz2
1000 rm -rf $(OUT) $(OUT).tar
1003 @echo $(BR2_VERSION_FULL)
1005 include docs/manual/manual.mk
1006 -include $(if $(BR2_EXTERNAL_NAME),$(BR2_EXTERNAL_$(BR2_EXTERNAL_NAME)_PATH)/docs/*/*.mk)
1008 .PHONY: $(noconfig_targets)