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 # Set O variable if not already done on the command line;
33 # or avoid confusing packages that can use the O=<dir> syntax for out-of-tree
34 # build by preventing it from being forwarded to sub-make calls.
35 ifneq ("$(origin O)", "command line")
39 # Check if the current Buildroot execution meets all the pre-requisites.
40 # If they are not met, Buildroot will actually do its job in a sub-make meeting
41 # its pre-requisites, which are:
42 # 1- Permissive enough umask:
43 # Wrong or too restrictive umask will prevent Buildroot and packages from
44 # creating files and directories.
45 # 2- Absolute canonical CWD (i.e. $(CURDIR)):
46 # Otherwise, some packages will use CWD as-is, others will compute its
47 # absolute canonical path. This makes harder tracking and fixing host
49 # 3- Absolute canonical output location (i.e. $(O)):
50 # For the same reason as the one for CWD.
52 # Remove the trailing '/.' from $(O) as it can be added by the makefile wrapper
53 # installed in the $(O) directory.
54 # Also remove the trailing '/' the user can set when on the command line.
55 override O := $(patsubst %/,%,$(patsubst %.,%,$(O)))
56 # Make sure $(O) actually exists before calling realpath on it; this is to
57 # avoid empty CANONICAL_O in case on non-existing entry.
58 CANONICAL_O := $(shell mkdir -p $(O) >/dev/null 2>&1)$(realpath $(O))
60 CANONICAL_CURDIR = $(realpath $(CURDIR))
64 # Make sure O= is passed (with its absolute canonical path) everywhere the
65 # toplevel makefile is called back.
66 EXTRAMAKEARGS := O=$(CANONICAL_O)
68 # Check Buildroot execution pre-requisites here.
69 ifneq ($(shell umask):$(CURDIR):$(O),$(REQ_UMASK):$(CANONICAL_CURDIR):$(CANONICAL_O))
70 .PHONY: _all $(MAKECMDGOALS)
76 @umask $(REQ_UMASK) && \
77 $(MAKE) -C $(CANONICAL_CURDIR) --no-print-directory \
78 $(MAKECMDGOALS) $(EXTRAMAKEARGS)
80 else # umask / $(CURDIR) / $(O)
82 # This is our default rule, so must come first
85 # Set and export the version string
86 export BR2_VERSION := 2016.11-rc3
88 # Save running make version since it's clobbered by the make package
89 RUNNING_MAKE_VERSION := $(MAKE_VERSION)
91 # Check for minimal make version (note: this check will break at make 10.x)
92 MIN_MAKE_VERSION = 3.81
93 ifneq ($(firstword $(sort $(RUNNING_MAKE_VERSION) $(MIN_MAKE_VERSION))),$(MIN_MAKE_VERSION))
94 $(error You have make '$(RUNNING_MAKE_VERSION)' installed. GNU make >= $(MIN_MAKE_VERSION) is required)
97 # Parallel execution of this Makefile is disabled because it changes
98 # the packages building order, that can be a problem for two reasons:
99 # - If a package has an unspecified optional dependency and that
100 # dependency is present when the package is built, it is used,
101 # otherwise it isn't (but compilation happily proceeds) so the end
102 # result will differ if the order is swapped due to parallel
104 # - Also changing the building order can be a problem if two packages
105 # manipulate the same file in the target directory.
107 # Taking into account the above considerations, if you still want to execute
108 # this top-level Makefile in parallel comment the ".NOTPARALLEL" line and
109 # use the -j<jobs> option when building, e.g:
110 # make -j$((`getconf _NPROCESSORS_ONLN`+1))
115 CONFIG_CONFIG_IN = Config.in
116 CONFIG = support/kconfig
117 DATE := $(shell date +%Y%m%d)
119 # Compute the full local version string so packages can use it as-is
120 # Need to export it, so it can be got from environment in children (eg. mconf)
121 export BR2_VERSION_FULL := $(BR2_VERSION)$(shell $(TOPDIR)/support/scripts/setlocalversion)
123 noconfig_targets := menuconfig nconfig gconfig xconfig config oldconfig randconfig \
124 defconfig %_defconfig allyesconfig allnoconfig silentoldconfig release \
125 randpackageconfig allyespackageconfig allnopackageconfig \
126 print-version olddefconfig distclean
128 # Some global targets do not trigger a build, but are used to collect
129 # metadata, or do various checks. When such targets are triggered,
130 # some packages should not do their configuration sanity
131 # checks. Provide them a BR_BUILDING variable set to 'y' when we're
132 # actually building and they should do their sanity checks.
134 # We're building in two situations: when MAKECMDGOALS is empty
135 # (default target is to build), or when MAKECMDGOALS contains
136 # something else than one of the nobuild_targets.
137 nobuild_targets := source source-check \
138 legal-info external-deps _external-deps \
140 ifeq ($(MAKECMDGOALS),)
142 else ifneq ($(filter-out $(nobuild_targets),$(MAKECMDGOALS)),)
146 # We call make recursively to build packages. The command-line overrides that
147 # are passed to Buildroot don't apply to those package build systems. In
148 # particular, we don't want to pass down the O=<dir> option for out-of-tree
149 # builds, because the value specified on the command line will not be correct
153 # Include some helper macros and variables
154 include support/misc/utils.mk
156 # Set variables related to in-tree or out-of-tree build.
157 # Here, both $(O) and $(CURDIR) are absolute canonical paths.
158 ifeq ($(O),$(CURDIR)/output)
159 CONFIG_DIR := $(CURDIR)
166 # bash prints the name of the directory on 'cd <dir>' if CDPATH is
167 # set, so unset it here to not cause problems. Notice that the export
168 # line doesn't affect the environment of $(shell ..) calls, so
169 # explictly throw away any output from 'cd' here.
171 BASE_DIR := $(shell mkdir -p $(O) && cd $(O) >/dev/null && pwd)
172 $(if $(BASE_DIR),, $(error output directory "$(O)" does not exist))
175 # Handling of BR2_EXTERNAL.
177 # The value of BR2_EXTERNAL is stored in .br-external in the output directory.
178 # The location of the external.mk makefile fragments is computed in that file.
179 # On subsequent invocations of make, this file is read in. BR2_EXTERNAL can
180 # still be overridden on the command line, therefore the file is re-created
181 # every time make is run.
183 BR2_EXTERNAL_FILE = $(BASE_DIR)/.br-external.mk
184 -include $(BR2_EXTERNAL_FILE)
185 $(shell support/scripts/br2-external \
186 -m -o '$(BR2_EXTERNAL_FILE)' $(BR2_EXTERNAL))
188 include $(BR2_EXTERNAL_FILE)
189 ifneq ($(BR2_EXTERNAL_ERROR),)
190 $(error $(BR2_EXTERNAL_ERROR))
193 # To make sure that the environment variable overrides the .config option,
194 # set this before including .config.
195 ifneq ($(BR2_DL_DIR),)
196 DL_DIR := $(BR2_DL_DIR)
198 ifneq ($(BR2_CCACHE_DIR),)
199 BR_CACHE_DIR := $(BR2_CCACHE_DIR)
202 # Need that early, before we scan packages
203 # Avoids doing the $(or...) everytime
204 BR_GRAPH_OUT := $(or $(BR2_GRAPH_OUT),pdf)
206 BUILD_DIR := $(BASE_DIR)/build
207 BINARIES_DIR := $(BASE_DIR)/images
208 TARGET_DIR := $(BASE_DIR)/target
209 # initial definition so that 'make clean' works for most users, even without
210 # .config. HOST_DIR will be overwritten later when .config is included.
211 HOST_DIR := $(BASE_DIR)/host
212 GRAPHS_DIR := $(BASE_DIR)/graphs
214 LEGAL_INFO_DIR = $(BASE_DIR)/legal-info
215 REDIST_SOURCES_DIR_TARGET = $(LEGAL_INFO_DIR)/sources
216 REDIST_SOURCES_DIR_HOST = $(LEGAL_INFO_DIR)/host-sources
217 LICENSE_FILES_DIR_TARGET = $(LEGAL_INFO_DIR)/licenses
218 LICENSE_FILES_DIR_HOST = $(LEGAL_INFO_DIR)/host-licenses
219 LEGAL_MANIFEST_CSV_TARGET = $(LEGAL_INFO_DIR)/manifest.csv
220 LEGAL_MANIFEST_CSV_HOST = $(LEGAL_INFO_DIR)/host-manifest.csv
221 LEGAL_WARNINGS = $(LEGAL_INFO_DIR)/.warnings
222 LEGAL_REPORT = $(LEGAL_INFO_DIR)/README
224 ################################################################################
226 # staging and target directories do NOT list these as
227 # dependencies anywhere else
229 ################################################################################
230 $(BUILD_DIR) $(TARGET_DIR) $(HOST_DIR) $(BINARIES_DIR) $(LEGAL_INFO_DIR) $(REDIST_SOURCES_DIR_TARGET) $(REDIST_SOURCES_DIR_HOST):
233 BR2_CONFIG = $(CONFIG_DIR)/.config
235 # Pull in the user's configuration file
236 ifeq ($(filter $(noconfig_targets),$(MAKECMDGOALS)),)
237 -include $(BR2_CONFIG)
240 # timezone and locale may affect build output
241 ifeq ($(BR2_REPRODUCIBLE),y)
247 # To put more focus on warnings, be less verbose as default
248 # Use 'make V=1' to see the full commands
249 ifeq ("$(origin V)", "command line")
250 KBUILD_VERBOSE = $(V)
252 ifndef KBUILD_VERBOSE
256 ifeq ($(KBUILD_VERBOSE),1)
266 # kconfig uses CONFIG_SHELL
267 CONFIG_SHELL := $(SHELL)
269 export SHELL CONFIG_SHELL Q KBUILD_VERBOSE
279 HOSTCC := $(shell which $(HOSTCC) || type -p $(HOSTCC) || echo gcc)
281 HOSTCC_NOCCACHE := $(HOSTCC)
284 HOSTCXX := $(shell which $(HOSTCXX) || type -p $(HOSTCXX) || echo g++)
286 HOSTCXX_NOCCACHE := $(HOSTCXX)
300 HOSTOBJCOPY := objcopy
305 HOSTAR := $(shell which $(HOSTAR) || type -p $(HOSTAR) || echo ar)
306 HOSTAS := $(shell which $(HOSTAS) || type -p $(HOSTAS) || echo as)
307 HOSTCPP := $(shell which $(HOSTCPP) || type -p $(HOSTCPP) || echo cpp)
308 HOSTLD := $(shell which $(HOSTLD) || type -p $(HOSTLD) || echo ld)
309 HOSTLN := $(shell which $(HOSTLN) || type -p $(HOSTLN) || echo ln)
310 HOSTNM := $(shell which $(HOSTNM) || type -p $(HOSTNM) || echo nm)
311 HOSTOBJCOPY := $(shell which $(HOSTOBJCOPY) || type -p $(HOSTOBJCOPY) || echo objcopy)
312 HOSTRANLIB := $(shell which $(HOSTRANLIB) || type -p $(HOSTRANLIB) || echo ranlib)
314 export HOSTAR HOSTAS HOSTCC HOSTCXX HOSTLD
315 export HOSTCC_NOCCACHE HOSTCXX_NOCCACHE
317 # Determine the userland we are running on.
319 # Note that, despite its name, we are not interested in the actual
320 # architecture name. This is mostly used to determine whether some
321 # of the binary tools (e.g. pre-built external toolchains) can run
322 # on the current host. So we need to know if the userland we're
323 # running on can actually run those toolchains.
325 # For example, a 64-bit prebuilt toolchain will not run on a 64-bit
326 # kernel if the userland is 32-bit (e.g. in a chroot for example).
328 # So, we extract the first part of the tuple the host gcc was
329 # configured to generate code for; we assume this is our userland.
331 export HOSTARCH := $(shell LC_ALL=C $(HOSTCC_NOCCACHE) -v 2>&1 | \
332 sed -e '/^Target: \([^-]*\).*/!d' \
335 -e 's/sun4u/sparc64/' \
338 -e 's/ppc64/powerpc64/' \
339 -e 's/ppc/powerpc/' \
340 -e 's/macppc/powerpc/' \
343 HOSTCC_VERSION := $(shell $(HOSTCC_NOCCACHE) --version | \
344 sed -n -r 's/^.* ([0-9]*)\.([0-9]*)\.([0-9]*)[ ]*.*/\1 \2/p')
346 # For gcc >= 5.x, we only need the major version.
347 ifneq ($(firstword $(HOSTCC_VERSION)),4)
348 HOSTCC_VERSION := $(firstword $(HOSTCC_VERSION))
351 # Make sure pkg-config doesn't look outside the buildroot tree
352 HOST_PKG_CONFIG_PATH := $(PKG_CONFIG_PATH)
353 unexport PKG_CONFIG_PATH
354 unexport PKG_CONFIG_SYSROOT_DIR
355 unexport PKG_CONFIG_LIBDIR
357 # Having DESTDIR set in the environment confuses the installation
358 # steps of some packages.
361 # Causes breakage with packages that needs host-ruby
364 include package/pkg-utils.mk
365 include package/doc-asciidoc.mk
367 ifeq ($(BR2_HAVE_DOT_CONFIG),y)
369 ################################################################################
371 # Hide troublesome environment variables from sub processes
373 ################################################################################
374 unexport CROSS_COMPILE
384 unexport GREP_OPTIONS
392 GNU_HOST_NAME := $(shell support/gnuconfig/config.guess)
397 # silent mode requested?
398 QUIET := $(if $(findstring s,$(filter-out --%,$(MAKEFLAGS))),-q)
400 # Strip off the annoying quoting
401 ARCH := $(call qstrip,$(BR2_ARCH))
403 KERNEL_ARCH := $(shell echo "$(ARCH)" | sed -e "s/-.*//" \
404 -e s/i.86/i386/ -e s/sun4u/sparc64/ \
407 -e s/arm.*/arm/ -e s/sa110/arm/ \
408 -e s/aarch64.*/arm64/ \
409 -e s/bfin/blackfin/ \
410 -e s/parisc64/parisc/ \
411 -e s/powerpc64.*/powerpc/ \
412 -e s/ppc.*/powerpc/ -e s/mips.*/mips/ \
414 -e s/microblazeel/microblaze/)
416 ZCAT := $(call qstrip,$(BR2_ZCAT))
417 BZCAT := $(call qstrip,$(BR2_BZCAT))
418 XZCAT := $(call qstrip,$(BR2_XZCAT))
419 TAR_OPTIONS = $(call qstrip,$(BR2_TAR_OPTIONS)) -xf
421 # packages compiled for the host go here
422 HOST_DIR := $(call qstrip,$(BR2_HOST_DIR))
424 # Quotes are needed for spaces and all in the original PATH content.
425 BR_PATH = "$(HOST_DIR)/bin:$(HOST_DIR)/sbin:$(HOST_DIR)/usr/bin:$(HOST_DIR)/usr/sbin:$(PATH)"
427 # Location of a file giving a big fat warning that output/target
428 # should not be used as the root filesystem.
429 TARGET_DIR_WARNING_FILE = $(TARGET_DIR)/THIS_IS_NOT_YOUR_ROOT_FILESYSTEM
431 ifeq ($(BR2_CCACHE),y)
432 CCACHE := $(HOST_DIR)/usr/bin/ccache
433 BR_CACHE_DIR ?= $(call qstrip,$(BR2_CCACHE_DIR))
435 HOSTCC := $(CCACHE) $(HOSTCC)
436 HOSTCXX := $(CCACHE) $(HOSTCXX)
441 # Scripts in support/ or post-build scripts may need to reference
442 # these locations, so export them so it is easier to use
444 export BR2_REPRODUCIBLE
451 ################################################################################
453 # You should probably leave this stuff alone unless you know
454 # what you are doing.
456 ################################################################################
460 # Include legacy before the other things, because package .mk files
462 include Makefile.legacy
464 include package/Makefile.in
465 include support/dependencies/dependencies.mk
467 include toolchain/*.mk
468 include toolchain/*/*.mk
470 # Include the package override file if one has been provided in the
472 PACKAGE_OVERRIDE_FILE = $(call qstrip,$(BR2_PACKAGE_OVERRIDE_FILE))
473 ifneq ($(PACKAGE_OVERRIDE_FILE),)
474 -include $(PACKAGE_OVERRIDE_FILE)
477 include $(sort $(wildcard package/*/*.mk))
479 include boot/common.mk
480 include linux/linux.mk
483 # If using a br2-external tree, the BR2_EXTERNAL_$(NAME)_PATH variables
484 # are also present in the .config file. Since .config is included after
485 # we defined them in the Makefile, the values for those variables are
486 # quoted. We just include the generated Makefile fragment .br2-external.mk
487 # a third time, which will set those variables to the un-quoted values.
488 include $(BR2_EXTERNAL_FILE)
490 # Nothing to include if no BR2_EXTERNAL tree in use
491 include $(BR2_EXTERNAL_MKS)
493 # Now we are sure we have all the packages scanned and defined. We now
494 # check for each package in the list of enabled packages, that all its
495 # dependencies are indeed enabled.
497 # Only trigger the check for default builds. If the user forces building
498 # a package, even if not enabled in the configuration, we want to accept
501 ifeq ($(MAKECMDGOALS),)
503 define CHECK_ONE_DEPENDENCY
504 ifeq ($$($(2)_TYPE),target)
505 ifeq ($$($(2)_IS_VIRTUAL),)
506 ifneq ($$($$($(2)_KCONFIG_VAR)),y)
507 $$(error $$($(2)_NAME) is in the dependency chain of $$($(1)_NAME) that \
508 has added it to its _DEPENDENCIES variable without selecting it or \
509 depending on it from Config.in)
515 $(foreach pkg,$(call UPPERCASE,$(PACKAGES)),\
516 $(foreach dep,$(call UPPERCASE,$($(pkg)_FINAL_ALL_DEPENDENCIES)),\
517 $(eval $(call CHECK_ONE_DEPENDENCY,$(pkg),$(dep))$(sep))))
521 dirs: $(BUILD_DIR) $(STAGING_DIR) $(TARGET_DIR) \
522 $(HOST_DIR) $(BINARIES_DIR)
524 $(BUILD_DIR)/buildroot-config/auto.conf: $(BR2_CONFIG)
525 $(MAKE1) $(EXTRAMAKEARGS) HOSTCC="$(HOSTCC_NOCCACHE)" HOSTCXX="$(HOSTCXX_NOCCACHE)" silentoldconfig
527 prepare: $(BUILD_DIR)/buildroot-config/auto.conf
529 world: target-post-image
531 .PHONY: all world toolchain dirs clean distclean source outputmakefile \
532 legal-info legal-info-prepare legal-info-clean printvars help \
533 list-defconfigs target-finalize target-post-image source-check
535 # Populating the staging with the base directories is handled by the skeleton package
537 @mkdir -p $(STAGING_DIR)
538 @ln -snf $(STAGING_DIR) $(BASE_DIR)/staging
540 RSYNC_VCS_EXCLUSIONS = \
541 --exclude .svn --exclude .git --exclude .hg --exclude .bzr \
544 STRIP_FIND_CMD = find $(TARGET_DIR)
545 ifneq (,$(call qstrip,$(BR2_STRIP_EXCLUDE_DIRS)))
546 STRIP_FIND_CMD += \( $(call finddirclauses,$(TARGET_DIR),$(call qstrip,$(BR2_STRIP_EXCLUDE_DIRS))) \) -prune -o
548 STRIP_FIND_CMD += -type f \( -perm /111 -o -name '*.so*' \)
550 # - libpthread.so: a non-stripped libpthread shared library is needed for
551 # proper debugging of pthread programs using gdb.
552 # - ld.so: a non-stripped dynamic linker library is needed for valgrind
553 # - kernel modules (*.ko): do not function properly when stripped like normal
554 # applications and libraries. Normally kernel modules are already excluded
555 # by the executable permission check above, so the explicit exclusion is only
556 # done for kernel modules with incorrect permissions.
557 STRIP_FIND_CMD += -not \( $(call findfileclauses,libpthread*.so* ld-*.so* *.ko $(call qstrip,$(BR2_STRIP_EXCLUDE_FILES))) \) -print0
559 ifeq ($(BR2_ECLIPSE_REGISTER),y)
560 define TOOLCHAIN_ECLIPSE_REGISTER
561 ./support/scripts/eclipse-register-toolchain `readlink -f $(O)` \
562 $(notdir $(TARGET_CROSS)) $(BR2_ARCH)
564 TARGET_FINALIZE_HOOKS += TOOLCHAIN_ECLIPSE_REGISTER
567 # Generate locale data. Basically, we call the localedef program
568 # (built by the host-localedef package) for each locale. The input
569 # data comes preferably from the toolchain, or if the toolchain does
570 # not have them (Linaro toolchains), we use the ones available on the
572 ifeq ($(BR2_TOOLCHAIN_USES_GLIBC),y)
573 GLIBC_GENERATE_LOCALES = $(call qstrip,$(BR2_GENERATE_LOCALE))
574 ifneq ($(GLIBC_GENERATE_LOCALES),)
575 PACKAGES += host-localedef
577 define GENERATE_GLIBC_LOCALES
578 $(Q)mkdir -p $(TARGET_DIR)/usr/lib/locale/
579 $(Q)for locale in $(GLIBC_GENERATE_LOCALES) ; do \
580 inputfile=`echo $${locale} | cut -f1 -d'.'` ; \
581 charmap=`echo $${locale} | cut -f2 -d'.' -s` ; \
582 if test -z "$${charmap}" ; then \
585 echo "Generating locale $${inputfile}.$${charmap}" ; \
586 I18NPATH=$(STAGING_DIR)/usr/share/i18n:/usr/share/i18n \
587 $(HOST_DIR)/usr/bin/localedef \
588 --prefix=$(TARGET_DIR) \
589 --$(call LOWERCASE,$(BR2_ENDIAN))-endian \
590 -i $${inputfile} -f $${charmap} \
594 TARGET_FINALIZE_HOOKS += GENERATE_GLIBC_LOCALES
598 ifeq ($(BR2_ENABLE_LOCALE_PURGE),y)
599 LOCALE_WHITELIST = $(BUILD_DIR)/locales.nopurge
600 LOCALE_NOPURGE = $(call qstrip,$(BR2_ENABLE_LOCALE_WHITELIST))
602 # This piece of junk does the following:
603 # First collect the whitelist in a file.
604 # Then go over all the locale dirs and for each subdir, check if it exists
605 # in the whitelist file. If it doesn't, kill it.
606 # Finally, specifically for X11, regenerate locale.dir from the whitelist.
608 rm -f $(LOCALE_WHITELIST)
609 for i in $(LOCALE_NOPURGE) locale-archive; do echo $$i >> $(LOCALE_WHITELIST); done
611 for dir in $(wildcard $(addprefix $(TARGET_DIR),/usr/share/locale /usr/share/X11/locale /usr/lib/locale)); \
613 for langdir in $$dir/*; \
615 if [ -e "$${langdir}" ]; \
617 grep -qx "$${langdir##*/}" $(LOCALE_WHITELIST) || rm -rf $$langdir; \
621 if [ -d $(TARGET_DIR)/usr/share/X11/locale ]; \
623 for lang in $(LOCALE_NOPURGE); \
625 if [ -f $(TARGET_DIR)/usr/share/X11/locale/$$lang/XLC_LOCALE ]; \
627 echo "$$lang/XLC_LOCALE: $$lang"; \
629 done > $(TARGET_DIR)/usr/share/X11/locale/locale.dir; \
632 TARGET_FINALIZE_HOOKS += PURGE_LOCALES
635 $(TARGETS_ROOTFS): target-finalize
637 target-finalize: $(PACKAGES)
638 @$(call MESSAGE,"Finalizing target directory")
639 $(foreach hook,$(TARGET_FINALIZE_HOOKS),$($(hook))$(sep))
640 rm -rf $(TARGET_DIR)/usr/include $(TARGET_DIR)/usr/share/aclocal \
641 $(TARGET_DIR)/usr/lib/pkgconfig $(TARGET_DIR)/usr/share/pkgconfig \
642 $(TARGET_DIR)/usr/lib/cmake $(TARGET_DIR)/usr/share/cmake
643 find $(TARGET_DIR)/usr/{lib,share}/ -name '*.cmake' -print0 | xargs -0 rm -f
644 find $(TARGET_DIR)/lib/ $(TARGET_DIR)/usr/lib/ $(TARGET_DIR)/usr/libexec/ \
645 \( -name '*.a' -o -name '*.la' \) -print0 | xargs -0 rm -f
646 ifneq ($(BR2_PACKAGE_GDB),y)
647 rm -rf $(TARGET_DIR)/usr/share/gdb
649 ifneq ($(BR2_PACKAGE_BASH),y)
650 rm -rf $(TARGET_DIR)/usr/share/bash-completion
652 ifneq ($(BR2_PACKAGE_ZSH),y)
653 rm -rf $(TARGET_DIR)/usr/share/zsh
655 rm -rf $(TARGET_DIR)/usr/man $(TARGET_DIR)/usr/share/man
656 rm -rf $(TARGET_DIR)/usr/info $(TARGET_DIR)/usr/share/info
657 rm -rf $(TARGET_DIR)/usr/doc $(TARGET_DIR)/usr/share/doc
658 rm -rf $(TARGET_DIR)/usr/share/gtk-doc
659 -rmdir $(TARGET_DIR)/usr/share 2>/dev/null
660 $(STRIP_FIND_CMD) | xargs -0 $(STRIPCMD) 2>/dev/null || true
662 # See http://sourceware.org/gdb/wiki/FAQ, "GDB does not see any threads
663 # besides the one in which crash occurred; or SIGTRAP kills my program when
664 # I set a breakpoint"
665 ifeq ($(BR2_TOOLCHAIN_HAS_THREADS),y)
666 find $(TARGET_DIR)/lib/ -type f -name 'libpthread*.so*' | \
667 xargs -r $(STRIPCMD) $(STRIP_STRIP_DEBUG)
670 # Valgrind needs ld.so with enough information, so only strip
672 find $(TARGET_DIR)/lib/ -type f -name 'ld-*.so*' | \
673 xargs -r $(STRIPCMD) $(STRIP_STRIP_DEBUG)
674 test -f $(TARGET_DIR)/etc/ld.so.conf && \
675 { echo "ERROR: we shouldn't have a /etc/ld.so.conf file"; exit 1; } || true
676 test -d $(TARGET_DIR)/etc/ld.so.conf.d && \
677 { echo "ERROR: we shouldn't have a /etc/ld.so.conf.d directory"; exit 1; } || true
678 mkdir -p $(TARGET_DIR)/etc
680 echo "NAME=Buildroot"; \
681 echo "VERSION=$(BR2_VERSION_FULL)"; \
682 echo "ID=buildroot"; \
683 echo "VERSION_ID=$(BR2_VERSION)"; \
684 echo "PRETTY_NAME=\"Buildroot $(BR2_VERSION)\"" \
685 ) > $(TARGET_DIR)/etc/os-release
687 @$(foreach d, $(call qstrip,$(BR2_ROOTFS_OVERLAY)), \
688 $(call MESSAGE,"Copying overlay $(d)"); \
689 rsync -a --ignore-times --keep-dirlinks $(RSYNC_VCS_EXCLUSIONS) \
690 --chmod=u=rwX,go=rX --exclude .empty --exclude '*~' \
691 $(d)/ $(TARGET_DIR)$(sep))
693 @$(foreach s, $(call qstrip,$(BR2_ROOTFS_POST_BUILD_SCRIPT)), \
694 $(call MESSAGE,"Executing post-build script $(s)"); \
695 $(EXTRA_ENV) $(s) $(TARGET_DIR) $(call qstrip,$(BR2_ROOTFS_POST_SCRIPT_ARGS))$(sep))
697 target-post-image: $(TARGETS_ROOTFS) target-finalize
698 @$(foreach s, $(call qstrip,$(BR2_ROOTFS_POST_IMAGE_SCRIPT)), \
699 $(call MESSAGE,"Executing post-image script $(s)"); \
700 $(EXTRA_ENV) $(s) $(BINARIES_DIR) $(call qstrip,$(BR2_ROOTFS_POST_SCRIPT_ARGS))$(sep))
702 source: $(foreach p,$(PACKAGES),$(p)-all-source)
704 _external-deps: $(foreach p,$(PACKAGES),$(p)-all-external-deps)
706 @$(MAKE1) -Bs $(EXTRAMAKEARGS) _external-deps | sort -u
708 # check if download URLs are outdated
709 source-check: $(foreach p,$(PACKAGES),$(p)-all-source-check)
712 @rm -fr $(LEGAL_INFO_DIR)
714 legal-info-prepare: $(LEGAL_INFO_DIR)
715 @$(call MESSAGE,"Collecting legal info")
716 @$(call legal-license-file,buildroot,COPYING,COPYING,HOST)
717 @$(call legal-manifest,PACKAGE,VERSION,LICENSE,LICENSE FILES,SOURCE ARCHIVE,SOURCE SITE,TARGET)
718 @$(call legal-manifest,PACKAGE,VERSION,LICENSE,LICENSE FILES,SOURCE ARCHIVE,SOURCE SITE,HOST)
719 @$(call legal-manifest,buildroot,$(BR2_VERSION_FULL),GPLv2+,COPYING,not saved,not saved,HOST)
720 @$(call legal-warning,the Buildroot source code has not been saved)
721 @cp $(BR2_CONFIG) $(LEGAL_INFO_DIR)/buildroot.config
723 legal-info: dirs legal-info-clean legal-info-prepare $(foreach p,$(PACKAGES),$(p)-all-legal-info) \
724 $(REDIST_SOURCES_DIR_TARGET) $(REDIST_SOURCES_DIR_HOST)
725 @cat support/legal-info/README.header >>$(LEGAL_REPORT)
726 @if [ -r $(LEGAL_WARNINGS) ]; then \
727 cat support/legal-info/README.warnings-header \
728 $(LEGAL_WARNINGS) >>$(LEGAL_REPORT); \
729 cat $(LEGAL_WARNINGS); fi
730 @rm -f $(LEGAL_WARNINGS)
731 @(cd $(LEGAL_INFO_DIR); \
732 find * -type f -exec sha256sum {} + | LC_ALL=C sort -k2 \
733 >.legal-info.sha256; \
734 mv .legal-info.sha256 legal-info.sha256)
735 @echo "Legal info produced in $(LEGAL_INFO_DIR)"
738 @echo $(PACKAGES) $(TARGETS_ROOTFS)
740 graph-build: $(O)/build/build-time.log
741 @install -d $(GRAPHS_DIR)
742 $(foreach o,name build duration,./support/scripts/graph-build-time \
743 --type=histogram --order=$(o) --input=$(<) \
744 --output=$(GRAPHS_DIR)/build.hist-$(o).$(BR_GRAPH_OUT) \
745 $(if $(BR2_GRAPH_ALT),--alternate-colors)$(sep))
746 $(foreach t,packages steps,./support/scripts/graph-build-time \
747 --type=pie-$(t) --input=$(<) \
748 --output=$(GRAPHS_DIR)/build.pie-$(t).$(BR_GRAPH_OUT) \
749 $(if $(BR2_GRAPH_ALT),--alternate-colors)$(sep))
751 graph-depends-requirements:
752 @dot -? >/dev/null 2>&1 || \
753 { echo "ERROR: The 'dot' program from Graphviz is needed for graph-depends" >&2; exit 1; }
755 graph-depends: graph-depends-requirements
756 @$(INSTALL) -d $(GRAPHS_DIR)
757 @cd "$(CONFIG_DIR)"; \
758 $(TOPDIR)/support/scripts/graph-depends $(BR2_GRAPH_DEPS_OPTS) \
759 --direct -o $(GRAPHS_DIR)/$(@).dot
760 dot $(BR2_GRAPH_DOT_OPTS) -T$(BR_GRAPH_OUT) \
761 -o $(GRAPHS_DIR)/$(@).$(BR_GRAPH_OUT) \
762 $(GRAPHS_DIR)/$(@).dot
765 $(Q)mkdir -p $(GRAPHS_DIR)
766 $(Q)$(TOPDIR)/support/scripts/size-stats --builddir $(BASE_DIR) \
767 --graph $(GRAPHS_DIR)/graph-size.$(BR_GRAPH_OUT) \
768 --file-size-csv $(GRAPHS_DIR)/file-size-stats.csv \
769 --package-size-csv $(GRAPHS_DIR)/package-size-stats.csv
772 @cd "$(CONFIG_DIR)"; \
773 $(TOPDIR)/support/scripts/graph-depends -C
775 else # ifeq ($(BR2_HAVE_DOT_CONFIG),y)
779 endif # ifeq ($(BR2_HAVE_DOT_CONFIG),y)
782 # ---------------------------------------------------------------------------
784 HOSTCFLAGS = $(CFLAGS_FOR_BUILD)
787 .PHONY: prepare-kconfig
788 prepare-kconfig: outputmakefile $(BUILD_DIR)/.br2-external.in
790 $(BUILD_DIR)/buildroot-config/%onf:
791 mkdir -p $(@D)/lxdialog
792 PKG_CONFIG_PATH="$(HOST_PKG_CONFIG_PATH)" $(MAKE) CC="$(HOSTCC_NOCCACHE)" HOSTCC="$(HOSTCC_NOCCACHE)" \
793 obj=$(@D) -C $(CONFIG) -f Makefile.br $(@F)
795 DEFCONFIG = $(call qstrip,$(BR2_DEFCONFIG))
797 # We don't want to fully expand BR2_DEFCONFIG here, so Kconfig will
798 # recognize that if it's still at its default $(CONFIG_DIR)/defconfig
799 COMMON_CONFIG_ENV = \
800 BR2_DEFCONFIG='$(call qstrip,$(value BR2_DEFCONFIG))' \
801 KCONFIG_AUTOCONFIG=$(BUILD_DIR)/buildroot-config/auto.conf \
802 KCONFIG_AUTOHEADER=$(BUILD_DIR)/buildroot-config/autoconf.h \
803 KCONFIG_TRISTATE=$(BUILD_DIR)/buildroot-config/tristate.config \
804 BR2_CONFIG=$(BR2_CONFIG) \
805 HOST_GCC_VERSION="$(HOSTCC_VERSION)" \
806 BUILD_DIR=$(BUILD_DIR) \
809 xconfig: $(BUILD_DIR)/buildroot-config/qconf prepare-kconfig
810 @$(COMMON_CONFIG_ENV) $< $(CONFIG_CONFIG_IN)
812 gconfig: $(BUILD_DIR)/buildroot-config/gconf prepare-kconfig
813 @$(COMMON_CONFIG_ENV) srctree=$(TOPDIR) $< $(CONFIG_CONFIG_IN)
815 menuconfig: $(BUILD_DIR)/buildroot-config/mconf prepare-kconfig
816 @$(COMMON_CONFIG_ENV) $< $(CONFIG_CONFIG_IN)
818 nconfig: $(BUILD_DIR)/buildroot-config/nconf prepare-kconfig
819 @$(COMMON_CONFIG_ENV) $< $(CONFIG_CONFIG_IN)
821 config: $(BUILD_DIR)/buildroot-config/conf prepare-kconfig
822 @$(COMMON_CONFIG_ENV) $< $(CONFIG_CONFIG_IN)
824 # For the config targets that automatically select options, we pass
825 # SKIP_LEGACY=y to disable the legacy options. However, in that case
826 # no values are set for the legacy options so a subsequent oldconfig
827 # will query them. Therefore, run an additional olddefconfig.
829 oldconfig: $(BUILD_DIR)/buildroot-config/conf prepare-kconfig
830 @$(COMMON_CONFIG_ENV) $< --oldconfig $(CONFIG_CONFIG_IN)
832 randconfig: $(BUILD_DIR)/buildroot-config/conf prepare-kconfig
833 @$(COMMON_CONFIG_ENV) SKIP_LEGACY=y $< --randconfig $(CONFIG_CONFIG_IN)
834 @$(COMMON_CONFIG_ENV) $< --olddefconfig $(CONFIG_CONFIG_IN) >/dev/null
836 allyesconfig: $(BUILD_DIR)/buildroot-config/conf prepare-kconfig
837 @$(COMMON_CONFIG_ENV) SKIP_LEGACY=y $< --allyesconfig $(CONFIG_CONFIG_IN)
838 @$(COMMON_CONFIG_ENV) $< --olddefconfig $(CONFIG_CONFIG_IN) >/dev/null
840 allnoconfig: $(BUILD_DIR)/buildroot-config/conf prepare-kconfig
841 @$(COMMON_CONFIG_ENV) SKIP_LEGACY=y $< --allnoconfig $(CONFIG_CONFIG_IN)
842 @$(COMMON_CONFIG_ENV) $< --olddefconfig $(CONFIG_CONFIG_IN) >/dev/null
844 randpackageconfig: $(BUILD_DIR)/buildroot-config/conf prepare-kconfig
845 @grep -v BR2_PACKAGE_ $(BR2_CONFIG) > $(CONFIG_DIR)/.config.nopkg
846 @$(COMMON_CONFIG_ENV) SKIP_LEGACY=y \
847 KCONFIG_ALLCONFIG=$(CONFIG_DIR)/.config.nopkg \
848 $< --randconfig $(CONFIG_CONFIG_IN)
849 @rm -f $(CONFIG_DIR)/.config.nopkg
850 @$(COMMON_CONFIG_ENV) $< --olddefconfig $(CONFIG_CONFIG_IN) >/dev/null
852 allyespackageconfig: $(BUILD_DIR)/buildroot-config/conf prepare-kconfig
853 @grep -v BR2_PACKAGE_ $(BR2_CONFIG) > $(CONFIG_DIR)/.config.nopkg
854 @$(COMMON_CONFIG_ENV) SKIP_LEGACY=y \
855 KCONFIG_ALLCONFIG=$(CONFIG_DIR)/.config.nopkg \
856 $< --allyesconfig $(CONFIG_CONFIG_IN)
857 @rm -f $(CONFIG_DIR)/.config.nopkg
858 @$(COMMON_CONFIG_ENV) $< --olddefconfig $(CONFIG_CONFIG_IN) >/dev/null
860 allnopackageconfig: $(BUILD_DIR)/buildroot-config/conf prepare-kconfig
861 @grep -v BR2_PACKAGE_ $(BR2_CONFIG) > $(CONFIG_DIR)/.config.nopkg
862 @$(COMMON_CONFIG_ENV) SKIP_LEGACY=y \
863 KCONFIG_ALLCONFIG=$(CONFIG_DIR)/.config.nopkg \
864 $< --allnoconfig $(CONFIG_CONFIG_IN)
865 @rm -f $(CONFIG_DIR)/.config.nopkg
866 @$(COMMON_CONFIG_ENV) $< --olddefconfig $(CONFIG_CONFIG_IN) >/dev/null
868 silentoldconfig: $(BUILD_DIR)/buildroot-config/conf prepare-kconfig
869 $(COMMON_CONFIG_ENV) $< --silentoldconfig $(CONFIG_CONFIG_IN)
871 olddefconfig: $(BUILD_DIR)/buildroot-config/conf prepare-kconfig
872 $(COMMON_CONFIG_ENV) $< --olddefconfig $(CONFIG_CONFIG_IN)
874 defconfig: $(BUILD_DIR)/buildroot-config/conf prepare-kconfig
875 @$(COMMON_CONFIG_ENV) $< --defconfig$(if $(DEFCONFIG),=$(DEFCONFIG)) $(CONFIG_CONFIG_IN)
877 define percent_defconfig
878 # Override the BR2_DEFCONFIG from COMMON_CONFIG_ENV with the new defconfig
879 %_defconfig: $(BUILD_DIR)/buildroot-config/conf $(1)/configs/%_defconfig prepare-kconfig
880 @$$(COMMON_CONFIG_ENV) BR2_DEFCONFIG=$(1)/configs/$$@ \
881 $$< --defconfig=$(1)/configs/$$@ $$(CONFIG_CONFIG_IN)
883 $(eval $(foreach d,$(call reverse,$(TOPDIR) $(BR2_EXTERNAL_DIRS)),$(call percent_defconfig,$(d))$(sep)))
885 savedefconfig: $(BUILD_DIR)/buildroot-config/conf prepare-kconfig
886 @$(COMMON_CONFIG_ENV) $< \
887 --savedefconfig=$(if $(DEFCONFIG),$(DEFCONFIG),$(CONFIG_DIR)/defconfig) \
889 @$(SED) '/BR2_DEFCONFIG=/d' $(if $(DEFCONFIG),$(DEFCONFIG),$(CONFIG_DIR)/defconfig)
891 .PHONY: defconfig savedefconfig
893 ################################################################################
895 # Cleanup and misc junk
897 ################################################################################
899 # outputmakefile generates a Makefile in the output directory, if using a
900 # separate output directory. This allows convenient use of make in the
903 ifeq ($(NEED_WRAPPER),y)
904 $(Q)$(TOPDIR)/support/scripts/mkmakefile $(TOPDIR) $(O)
907 # Even though the target is a real file, we mark it as PHONY as we
908 # want it to be re-generated each time make is invoked, in case the
909 # value of BR2_EXTERNAL is changed.
910 .PHONY: $(BUILD_DIR)/.br2-external.in
911 $(BUILD_DIR)/.br2-external.in: $(BUILD_DIR)
912 $(Q)support/scripts/br2-external -k -o "$(@)" $(BR2_EXTERNAL)
914 # printvars prints all the variables currently defined in our
915 # Makefiles. Alternatively, if a non-empty VARS variable is passed,
916 # only the variables matching the make pattern passed in VARS are
920 $(sort $(if $(VARS),$(filter $(VARS),$(.VARIABLES)),$(.VARIABLES))), \
921 $(if $(filter-out environment% default automatic, \
923 $(info $V=$($V) ($(value $V)))))
926 rm -rf $(TARGET_DIR) $(BINARIES_DIR) $(HOST_DIR) \
927 $(BUILD_DIR) $(BASE_DIR)/staging \
928 $(LEGAL_INFO_DIR) $(GRAPHS_DIR)
931 ifeq ($(O),$(CURDIR)/output)
934 rm -rf $(TOPDIR)/dl $(BR2_CONFIG) $(CONFIG_DIR)/.config.old $(CONFIG_DIR)/..config.tmp \
935 $(CONFIG_DIR)/.auto.deps $(BR2_EXTERNAL_FILE)
939 @echo ' clean - delete all files created by build'
940 @echo ' distclean - delete all non-source files (including .config)'
943 @echo ' all - make world'
944 @echo ' toolchain - build toolchain'
946 @echo 'Configuration:'
947 @echo ' menuconfig - interactive curses-based configurator'
948 @echo ' nconfig - interactive ncurses-based configurator'
949 @echo ' xconfig - interactive Qt-based configurator'
950 @echo ' gconfig - interactive GTK-based configurator'
951 @echo ' oldconfig - resolve any unresolved symbols in .config'
952 @echo ' silentoldconfig - Same as oldconfig, but quietly, additionally update deps'
953 @echo ' olddefconfig - Same as silentoldconfig but sets new symbols to their default value'
954 @echo ' randconfig - New config with random answer to all options'
955 @echo ' defconfig - New config with default answer to all options'
956 @echo ' BR2_DEFCONFIG, if set, is used as input'
957 @echo ' savedefconfig - Save current config to BR2_DEFCONFIG (minimal config)'
958 @echo ' allyesconfig - New config where all options are accepted with yes'
959 @echo ' allnoconfig - New config where all options are answered with no'
960 @echo ' randpackageconfig - New config with random answer to package options'
961 @echo ' allyespackageconfig - New config where pkg options are accepted with yes'
962 @echo ' allnopackageconfig - New config where package options are answered with no'
964 @echo 'Package-specific:'
965 @echo ' <pkg> - Build and install <pkg> and all its dependencies'
966 @echo ' <pkg>-source - Only download the source files for <pkg>'
967 @echo ' <pkg>-extract - Extract <pkg> sources'
968 @echo ' <pkg>-patch - Apply patches to <pkg>'
969 @echo ' <pkg>-depends - Build <pkg>'\''s dependencies'
970 @echo ' <pkg>-configure - Build <pkg> up to the configure step'
971 @echo ' <pkg>-build - Build <pkg> up to the build step'
972 @echo ' <pkg>-show-depends - List packages on which <pkg> depends'
973 @echo ' <pkg>-show-rdepends - List packages which have <pkg> as a dependency'
974 @echo ' <pkg>-graph-depends - Generate a graph of <pkg>'\''s dependencies'
975 @echo ' <pkg>-graph-rdepends - Generate a graph of <pkg>'\''s reverse dependencies'
976 @echo ' <pkg>-dirclean - Remove <pkg> build directory'
977 @echo ' <pkg>-reconfigure - Restart the build from the configure step'
978 @echo ' <pkg>-rebuild - Restart the build from the build step'
979 $(foreach p,$(HELP_PACKAGES), \
981 @echo '$($(p)_NAME):' $(sep) \
982 $($(p)_HELP_CMDS)$(sep))
984 @echo 'Documentation:'
985 @echo ' manual - build manual in all formats'
986 @echo ' manual-html - build manual in HTML'
987 @echo ' manual-split-html - build manual in split HTML'
988 @echo ' manual-pdf - build manual in PDF'
989 @echo ' manual-text - build manual in text'
990 @echo ' manual-epub - build manual in ePub'
991 @echo ' graph-build - generate graphs of the build times'
992 @echo ' graph-depends - generate graph of the dependency tree'
993 @echo ' graph-size - generate stats of the filesystem size'
994 @echo ' list-defconfigs - list all defconfigs (pre-configured minimal systems)'
996 @echo 'Miscellaneous:'
997 @echo ' source - download all sources needed for offline-build'
998 @echo ' source-check - check selected packages for valid download URLs'
999 @echo ' external-deps - list external packages used'
1000 @echo ' legal-info - generate info about license compliance'
1002 @echo ' make V=0|1 - 0 => quiet build (default), 1 => verbose build'
1003 @echo ' make O=dir - Locate all output files in "dir", including .config'
1005 @echo 'For further details, see README, generate the Buildroot manual, or consult'
1006 @echo 'it on-line at http://buildroot.org/docs.html'
1009 # List the defconfig files
1010 # $(1): base directory
1011 # $(2): br2-external name, empty for bundled
1012 define list-defconfigs
1014 for defconfig in $(1)/configs/*_defconfig; do \
1015 [ -f "$${defconfig}" ] || continue; \
1016 if $${first}; then \
1017 if [ "$(2)" ]; then \
1018 printf 'External configs in "$(call qstrip,$(2))":\n'; \
1020 printf "Built-in configs:\n"; \
1024 defconfig="$${defconfig##*/}"; \
1025 printf " %-35s - Build for %s\n" "$${defconfig}" "$${defconfig%_defconfig}"; \
1027 $${first} || printf "\n"
1030 # We iterate over BR2_EXTERNAL_NAMES rather than BR2_EXTERNAL_DIRS,
1031 # because we want to display the name of the br2-external tree.
1033 $(call list-defconfigs,$(TOPDIR))
1034 $(foreach name,$(BR2_EXTERNAL_NAMES),\
1035 $(call list-defconfigs,$(BR2_EXTERNAL_$(name)_PATH),\
1036 $(BR2_EXTERNAL_$(name)_DESC))$(sep))
1038 release: OUT = buildroot-$(BR2_VERSION)
1040 # Create release tarballs. We need to fiddle a bit to add the generated
1041 # documentation to the git output
1043 git archive --format=tar --prefix=$(OUT)/ HEAD > $(OUT).tar
1044 $(MAKE) O=$(OUT) manual-html manual-text manual-pdf
1045 $(MAKE) O=$(OUT) manual-clean
1046 tar rf $(OUT).tar $(OUT)
1047 gzip -9 -c < $(OUT).tar > $(OUT).tar.gz
1048 bzip2 -9 -c < $(OUT).tar > $(OUT).tar.bz2
1049 rm -rf $(OUT) $(OUT).tar
1052 @echo $(BR2_VERSION_FULL)
1054 include docs/manual/manual.mk
1055 -include $(foreach dir,$(BR2_EXTERNAL_DIRS),$(dir)/docs/*/*.mk)
1057 .PHONY: $(noconfig_targets)
1059 endif #umask / $(CURDIR) / $(O)