1# Makefile for buildroot 2# 3# Copyright (C) the Buildroot developers <buildroot@buildroot.org> 4# 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. 9# 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. 14# 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 18# 19 20#-------------------------------------------------------------- 21# Just run 'make menuconfig', configure stuff, then run 'make'. 22# You shouldn't need to mess with anything beyond this point... 23#-------------------------------------------------------------- 24 25# Delete default rules. We don't use them. This saves a bit of time. 26.SUFFIXES: 27 28# we want bash as shell 29SHELL := $(shell if [ -x "$$BASH" ]; then echo $$BASH; \ 30 else if [ -x /bin/bash ]; then echo /bin/bash; \ 31 else echo sh; fi; fi) 32 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. 36ifneq ("$(origin O)", "command line") 37O := $(CURDIR)/output 38endif 39 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 49# machine path leaks. 50# 3- Absolute canonical output location (i.e. $(O)): 51# For the same reason as the one for CWD. 52 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. 56override 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. 59CANONICAL_O := $(shell mkdir -p $(O) >/dev/null 2>&1)$(realpath $(O)) 60 61# gcc fails to build when the srcdir contains a '@' 62ifneq ($(findstring @,$(CANONICAL_O)),) 63$(error The build directory can not contain a '@') 64endif 65 66CANONICAL_CURDIR = $(realpath $(CURDIR)) 67 68REQ_UMASK = 0022 69 70# Make sure O= is passed (with its absolute canonical path) everywhere the 71# toplevel makefile is called back. 72EXTRAMAKEARGS := O=$(CANONICAL_O) 73 74# Check Buildroot execution pre-requisites here. 75ifneq ($(shell umask):$(CURDIR):$(O),$(REQ_UMASK):$(CANONICAL_CURDIR):$(CANONICAL_O)) 76.PHONY: _all $(MAKECMDGOALS) 77 78$(MAKECMDGOALS): _all 79 @: 80 81_all: 82 @umask $(REQ_UMASK) && \ 83 $(MAKE) -C $(CANONICAL_CURDIR) --no-print-directory \ 84 $(MAKECMDGOALS) $(EXTRAMAKEARGS) 85 86else # umask / $(CURDIR) / $(O) 87 88# This is our default rule, so must come first 89all: 90.PHONY: all 91 92# Set and export the version string 93export BR2_VERSION := 2024.05 94# Actual time the release is cut (for reproducible builds) 95BR2_VERSION_EPOCH = 1718188000 96 97# Save running make version since it's clobbered by the make package 98RUNNING_MAKE_VERSION := $(MAKE_VERSION) 99 100# Check for minimal make version (note: this check will break at make 10.x) 101MIN_MAKE_VERSION = 3.81 102ifneq ($(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) 104endif 105 106# absolute path 107TOPDIR := $(CURDIR) 108CONFIG_CONFIG_IN = Config.in 109CONFIG = support/kconfig 110DATE := $(shell date +%Y%m%d) 111 112# 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) 114 115BR2_LOCALVERSION := $(shell $(TOPDIR)/support/scripts/setlocalversion) 116ifeq ($(BR2_LOCALVERSION),) 117export BR2_VERSION_FULL := $(BR2_VERSION) 118else 119export BR2_VERSION_FULL := $(BR2_LOCALVERSION) 120endif 121 122# List of targets and target patterns for which .config doesn't need to be read in 123noconfig_targets := menuconfig nconfig gconfig xconfig config oldconfig randconfig \ 124 defconfig %_defconfig allyesconfig allnoconfig alldefconfig syncconfig release \ 125 randpackageconfig allyespackageconfig allnopackageconfig \ 126 print-version olddefconfig distclean manual manual-% check-package 127 128# Some global targets do not trigger a build, but are used to collect 129# metadata, or do various checks. When such targets are triggered, 130# some packages should not do their configuration sanity 131# checks. Provide them a BR_BUILDING variable set to 'y' when we're 132# actually building and they should do their sanity checks. 133# 134# We're building in two situations: when MAKECMDGOALS is empty 135# (default target is to build), or when MAKECMDGOALS contains 136# something else than one of the nobuild_targets. 137nobuild_targets := source %-source \ 138 legal-info %-legal-info external-deps _external-deps \ 139 clean distclean help show-targets graph-depends \ 140 %-graph-depends %-show-depends %-show-version \ 141 graph-build graph-size list-defconfigs \ 142 savedefconfig update-defconfig printvars show-vars 143ifeq ($(MAKECMDGOALS),) 144BR_BUILDING = y 145else ifneq ($(filter-out $(nobuild_targets),$(MAKECMDGOALS)),) 146BR_BUILDING = y 147endif 148 149# 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 153# for packages. 154MAKEOVERRIDES := 155 156# Include some helper macros and variables 157include support/misc/utils.mk 158 159# Set variables related to in-tree or out-of-tree build. 160# Here, both $(O) and $(CURDIR) are absolute canonical paths. 161ifeq ($(O),$(CURDIR)/output) 162CONFIG_DIR := $(CURDIR) 163NEED_WRAPPER = 164else 165CONFIG_DIR := $(O) 166NEED_WRAPPER = y 167endif 168 169# 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. 172export CDPATH := 173 174BASE_DIR := $(CANONICAL_O) 175$(if $(BASE_DIR),, $(error output directory "$(O)" does not exist)) 176 177 178# Handling of BR2_EXTERNAL. 179# 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. 185 186BR2_EXTERNAL_FILE = $(BASE_DIR)/.br2-external.mk 187-include $(BR2_EXTERNAL_FILE) 188$(shell support/scripts/br2-external -d '$(BASE_DIR)' $(BR2_EXTERNAL)) 189BR2_EXTERNAL_ERROR = 190include $(BR2_EXTERNAL_FILE) 191ifneq ($(BR2_EXTERNAL_ERROR),) 192$(error $(BR2_EXTERNAL_ERROR)) 193endif 194 195# Workaround bug in make-4.3: https://savannah.gnu.org/bugs/?57676 196$(BASE_DIR)/.br2-external.mk:; 197 198# To make sure that the environment variable overrides the .config option, 199# set this before including .config. 200ifneq ($(BR2_DL_DIR),) 201DL_DIR := $(BR2_DL_DIR) 202endif 203ifneq ($(BR2_CCACHE_DIR),) 204BR_CACHE_DIR := $(BR2_CCACHE_DIR) 205endif 206 207# Need that early, before we scan packages 208# Avoids doing the $(or...) everytime 209BR_GRAPH_OUT := $(or $(BR2_GRAPH_OUT),pdf) 210 211BUILD_DIR := $(BASE_DIR)/build 212BINARIES_DIR := $(BASE_DIR)/images 213BASE_TARGET_DIR := $(BASE_DIR)/target 214PER_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. 217HOST_DIR := $(BASE_DIR)/host 218GRAPHS_DIR := $(BASE_DIR)/graphs 219 220LEGAL_INFO_DIR = $(BASE_DIR)/legal-info 221REDIST_SOURCES_DIR_TARGET = $(LEGAL_INFO_DIR)/sources 222REDIST_SOURCES_DIR_HOST = $(LEGAL_INFO_DIR)/host-sources 223LICENSE_FILES_DIR_TARGET = $(LEGAL_INFO_DIR)/licenses 224LICENSE_FILES_DIR_HOST = $(LEGAL_INFO_DIR)/host-licenses 225LEGAL_MANIFEST_CSV_TARGET = $(LEGAL_INFO_DIR)/manifest.csv 226LEGAL_MANIFEST_CSV_HOST = $(LEGAL_INFO_DIR)/host-manifest.csv 227LEGAL_WARNINGS = $(LEGAL_INFO_DIR)/.warnings 228LEGAL_REPORT = $(LEGAL_INFO_DIR)/README 229 230BR2_CONFIG = $(CONFIG_DIR)/.config 231 232# Pull in the user's configuration file 233ifeq ($(filter $(noconfig_targets),$(MAKECMDGOALS)),) 234-include $(BR2_CONFIG) 235endif 236 237ifeq ($(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. 241.NOTPARALLEL: 242endif 243 244# timezone and locale may affect build output 245ifeq ($(BR2_REPRODUCIBLE),y) 246export TZ = UTC 247export LANG = C 248export LC_ALL = C 249endif 250 251# To put more focus on warnings, be less verbose as default 252# Use 'make V=1' to see the full commands 253ifeq ("$(origin V)", "command line") 254 KBUILD_VERBOSE = $(V) 255endif 256ifndef KBUILD_VERBOSE 257 KBUILD_VERBOSE = 0 258endif 259 260ifeq ($(KBUILD_VERBOSE),1) 261 Q = 262ifndef VERBOSE 263 VERBOSE = 1 264endif 265export VERBOSE 266else 267 Q = @ 268endif 269 270# kconfig uses CONFIG_SHELL 271CONFIG_SHELL := $(SHELL) 272 273export SHELL CONFIG_SHELL Q KBUILD_VERBOSE 274 275ifndef HOSTAR 276HOSTAR := ar 277endif 278ifndef HOSTAS 279HOSTAS := as 280endif 281ifndef HOSTCC 282HOSTCC := gcc 283HOSTCC := $(shell which $(HOSTCC) || type -p $(HOSTCC) || echo gcc) 284endif 285ifndef HOSTCC_NOCCACHE 286HOSTCC_NOCCACHE := $(HOSTCC) 287endif 288ifndef HOSTCXX 289HOSTCXX := g++ 290HOSTCXX := $(shell which $(HOSTCXX) || type -p $(HOSTCXX) || echo g++) 291endif 292ifndef HOSTCXX_NOCCACHE 293HOSTCXX_NOCCACHE := $(HOSTCXX) 294endif 295ifndef HOSTCPP 296HOSTCPP := cpp 297endif 298ifndef HOSTLD 299HOSTLD := ld 300endif 301ifndef HOSTLN 302HOSTLN := ln 303endif 304ifndef HOSTNM 305HOSTNM := nm 306endif 307ifndef HOSTOBJCOPY 308HOSTOBJCOPY := objcopy 309endif 310ifndef HOSTRANLIB 311HOSTRANLIB := ranlib 312endif 313HOSTAR := $(shell which $(HOSTAR) || type -p $(HOSTAR) || echo ar) 314HOSTAS := $(shell which $(HOSTAS) || type -p $(HOSTAS) || echo as) 315HOSTCPP := $(shell which $(HOSTCPP) || type -p $(HOSTCPP) || echo cpp) 316HOSTLD := $(shell which $(HOSTLD) || type -p $(HOSTLD) || echo ld) 317HOSTLN := $(shell which $(HOSTLN) || type -p $(HOSTLN) || echo ln) 318HOSTNM := $(shell which $(HOSTNM) || type -p $(HOSTNM) || echo nm) 319HOSTOBJCOPY := $(shell which $(HOSTOBJCOPY) || type -p $(HOSTOBJCOPY) || echo objcopy) 320HOSTRANLIB := $(shell which $(HOSTRANLIB) || type -p $(HOSTRANLIB) || echo ranlib) 321SED := $(shell which sed || type -p sed) -i -e 322 323export HOSTAR HOSTAS HOSTCC HOSTCXX HOSTLD 324export HOSTCC_NOCCACHE HOSTCXX_NOCCACHE 325 326# Determine the userland we are running on. 327# 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. 333# 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). 336# 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. 339# 340export HOSTARCH := $(shell LC_ALL=C $(HOSTCC_NOCCACHE) -v 2>&1 | \ 341 sed -e '/^Target: \([^-]*\).*/!d' \ 342 -e 's//\1/' \ 343 -e 's/i.86/x86/' \ 344 -e 's/sun4u/sparc64/' \ 345 -e 's/arm.*/arm/' \ 346 -e 's/sa110/arm/' \ 347 -e 's/ppc64/powerpc64/' \ 348 -e 's/ppc/powerpc/' \ 349 -e 's/macppc/powerpc/' \ 350 -e 's/sh.*/sh/' ) 351 352# When adding a new host gcc version in Config.in, 353# update the HOSTCC_MAX_VERSION variable: 354HOSTCC_MAX_VERSION := 11 355 356HOSTCC_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); \ 359 printf "%s" "$${V}") 360 361# For gcc >= 5.x, we only need the major version. 362ifneq ($(firstword $(HOSTCC_VERSION)),4) 363HOSTCC_VERSION := $(firstword $(HOSTCC_VERSION)) 364endif 365 366ifeq ($(BR2_NEEDS_HOST_UTF8_LOCALE),y) 367# First, we try to use the user's configured locale (as that's the 368# language they'd expect messages to be displayed), then we favour 369# a non language-specific locale like C.UTF-8 if one is available, 370# so we sort with the C locale to get it at the top. 371# This is guaranteed to not be empty, because of the check in 372# support/dependencies/dependencies.sh 373HOST_UTF8_LOCALE := $(shell \ 374 ( echo $${LC_ALL:-$${LC_MESSAGES:-$${LANG}}}; \ 375 locale -a 2>/dev/null | LC_ALL=C sort \ 376 ) \ 377 | grep -i -E 'utf-?8$$' \ 378 | head -n 1) 379HOST_UTF8_LOCALE_ENV := LC_ALL=$(HOST_UTF8_LOCALE) 380endif 381 382# Make sure pkg-config doesn't look outside the buildroot tree 383HOST_PKG_CONFIG_PATH := $(PKG_CONFIG_PATH) 384unexport PKG_CONFIG_PATH 385unexport PKG_CONFIG_SYSROOT_DIR 386unexport PKG_CONFIG_LIBDIR 387 388# Having DESTDIR set in the environment confuses the installation 389# steps of some packages. 390unexport DESTDIR 391 392# Causes breakage with packages that needs host-ruby 393unexport RUBYOPT 394 395# Compilation of perl-related packages will fail otherwise 396unexport PERL_MM_OPT 397 398include package/pkg-utils.mk 399include package/doc-asciidoc.mk 400 401ifeq ($(BR2_HAVE_DOT_CONFIG),y) 402 403################################################################################ 404# 405# Hide troublesome environment variables from sub processes 406# 407################################################################################ 408unexport CROSS_COMPILE 409unexport ARCH 410unexport CC 411unexport LD 412unexport AR 413unexport CXX 414unexport CPP 415unexport RANLIB 416unexport CFLAGS 417unexport CXXFLAGS 418unexport GREP_OPTIONS 419unexport TAR_OPTIONS 420unexport CONFIG_SITE 421unexport QMAKESPEC 422unexport TERMINFO 423unexport MACHINE 424unexport O 425unexport GCC_COLORS 426unexport PLATFORM 427unexport OS 428unexport DEVICE_TREE 429 430GNU_HOST_NAME := $(shell support/gnuconfig/config.guess) 431 432PACKAGES := 433PACKAGES_ALL := 434 435# silent mode requested? 436QUIET := $(if $(findstring s,$(filter-out --%,$(MAKEFLAGS))),-q) 437 438# Strip off the annoying quoting 439ARCH := $(call qstrip,$(BR2_ARCH)) 440NORMALIZED_ARCH := $(call qstrip,$(BR2_NORMALIZED_ARCH)) 441KERNEL_ARCH := $(call qstrip,$(BR2_NORMALIZED_ARCH)) 442 443ZCAT := $(call qstrip,$(BR2_ZCAT)) 444BZCAT := $(call qstrip,$(BR2_BZCAT)) 445XZCAT := $(call qstrip,$(BR2_XZCAT)) 446LZCAT := $(call qstrip,$(BR2_LZCAT)) 447TAR_OPTIONS = $(call qstrip,$(BR2_TAR_OPTIONS)) -xf 448 449ifeq ($(BR2_PER_PACKAGE_DIRECTORIES),y) 450HOST_DIR = $(if $(PKG),$(PER_PACKAGE_DIR)/$($(PKG)_NAME)/host,$(call qstrip,$(BR2_HOST_DIR))) 451TARGET_DIR = $(if $(ROOTFS),$(ROOTFS_$(ROOTFS)_TARGET_DIR),$(if $(PKG),$(PER_PACKAGE_DIR)/$($(PKG)_NAME)/target,$(BASE_TARGET_DIR))) 452else 453HOST_DIR := $(call qstrip,$(BR2_HOST_DIR)) 454TARGET_DIR = $(if $(ROOTFS),$(ROOTFS_$(ROOTFS)_TARGET_DIR),$(BASE_TARGET_DIR)) 455endif 456 457ifneq ($(HOST_DIR),$(BASE_DIR)/host) 458HOST_DIR_SYMLINK = $(BASE_DIR)/host 459$(HOST_DIR_SYMLINK): | $(BASE_DIR) 460 ln -snf $(HOST_DIR) $(HOST_DIR_SYMLINK) 461endif 462 463STAGING_DIR_SYMLINK = $(BASE_DIR)/staging 464$(STAGING_DIR_SYMLINK): | $(BASE_DIR) 465 ln -snf $(STAGING_DIR) $(STAGING_DIR_SYMLINK) 466 467# Quotes are needed for spaces and all in the original PATH content. 468BR_PATH = "$(HOST_DIR)/bin:$(HOST_DIR)/sbin:$(PATH)" 469 470# Location of a file giving a big fat warning that output/target 471# should not be used as the root filesystem. 472TARGET_DIR_WARNING_FILE = $(TARGET_DIR)/THIS_IS_NOT_YOUR_ROOT_FILESYSTEM 473 474ifeq ($(BR2_CCACHE),y) 475CCACHE = $(HOST_DIR)/bin/ccache 476BR_CACHE_DIR ?= $(call qstrip,$(BR2_CCACHE_DIR)) 477export BR_CACHE_DIR 478HOSTCC = $(CCACHE) $(HOSTCC_NOCCACHE) 479HOSTCXX = $(CCACHE) $(HOSTCXX_NOCCACHE) 480export BR2_USE_CCACHE ?= 1 481endif 482 483# Scripts in support/ or post-build scripts may need to reference 484# these locations, so export them so it is easier to use 485export BR2_CONFIG 486export BR2_REPRODUCIBLE 487export TARGET_DIR 488export STAGING_DIR 489export HOST_DIR 490export BINARIES_DIR 491export BASE_DIR 492 493################################################################################ 494# 495# You should probably leave this stuff alone unless you know 496# what you are doing. 497# 498################################################################################ 499 500all: world 501 502# Include legacy before the other things, because package .mk files 503# may rely on it. 504include Makefile.legacy 505 506include system/system.mk 507include 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. 510include arch/arch.mk 511include support/dependencies/dependencies.mk 512 513include $(sort $(wildcard toolchain/*.mk)) 514include $(sort $(wildcard toolchain/*/*.mk)) 515 516ifeq ($(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/ 520BR2_VERSION_GIT_EPOCH := $(shell $(GIT) log -1 --format=%at 2> /dev/null) 521export SOURCE_DATE_EPOCH ?= $(or $(BR2_VERSION_GIT_EPOCH),$(BR2_VERSION_EPOCH)) 522endif 523 524# Include the package override file if one has been provided in the 525# configuration. 526PACKAGE_OVERRIDE_FILE = $(call qstrip,$(BR2_PACKAGE_OVERRIDE_FILE)) 527ifneq ($(PACKAGE_OVERRIDE_FILE),) 528-include $(PACKAGE_OVERRIDE_FILE) 529endif 530 531include $(sort $(wildcard package/*/*.mk)) 532 533include boot/common.mk 534include linux/linux.mk 535include fs/common.mk 536 537# 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. 542include $(BR2_EXTERNAL_FILE) 543 544# Nothing to include if no BR2_EXTERNAL tree in use 545include $(BR2_EXTERNAL_MKS) 546 547# 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. 550# 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. 557# 558ifeq ($(MAKECMDGOALS),) 559BR_FORCE_CHECK_DEPENDENCIES = YES 560endif 561 562ifeq ($(BR_FORCE_CHECK_DEPENDENCIES),YES) 563 564define CHECK_ONE_DEPENDENCY 565ifeq ($$($(2)_TYPE),target) 566ifneq ($$($$($(2)_KCONFIG_VAR)),y) 567$$(error $$($(2)_NAME) is in the dependency chain of $$($(1)_NAME) that \ 568has added it to its _DEPENDENCIES variable without selecting it or \ 569depending on it from Config.in) 570endif 571endif 572endef 573 574$(foreach pkg,$(call UPPERCASE,$(PACKAGES)),\ 575 $(foreach dep,$(call UPPERCASE,$($(pkg)_FINAL_ALL_DEPENDENCIES)),\ 576 $(eval $(call CHECK_ONE_DEPENDENCY,$(pkg),$(dep))$(sep)))) 577 578endif 579 580$(BUILD_DIR)/buildroot-config/auto.conf: $(BR2_CONFIG) 581 $(MAKE1) $(EXTRAMAKEARGS) HOSTCC="$(HOSTCC_NOCCACHE)" HOSTCXX="$(HOSTCXX_NOCCACHE)" syncconfig 582 583.PHONY: prepare 584prepare: $(BUILD_DIR)/buildroot-config/auto.conf 585 @$(foreach s, $(call qstrip,$(BR2_ROOTFS_PRE_BUILD_SCRIPT)), \ 586 $(call MESSAGE,"Executing pre-build script $(s)"); \ 587 $(EXTRA_ENV) $(s) \ 588 $(TARGET_DIR) \ 589 $(call qstrip,$(BR2_ROOTFS_POST_SCRIPT_ARGS)) \ 590 $(call qstrip,$(BR2_ROOTFS_PRE_BUILD_SCRIPT_ARGS))$(sep)) 591 592.PHONY: world 593world: target-post-image 594 595.PHONY: prepare-sdk 596prepare-sdk: world 597 @$(call MESSAGE,"Rendering the SDK relocatable") 598 PARALLEL_JOBS=$(PARALLEL_JOBS) \ 599 PER_PACKAGE_DIR=$(PER_PACKAGE_DIR) \ 600 $(TOPDIR)/support/scripts/fix-rpath host 601 PARALLEL_JOBS=$(PARALLEL_JOBS) \ 602 PER_PACKAGE_DIR=$(PER_PACKAGE_DIR) \ 603 $(TOPDIR)/support/scripts/fix-rpath staging 604 $(call ppd-fixup-paths,$(BASE_DIR)) 605 $(INSTALL) -m 755 $(TOPDIR)/support/misc/relocate-sdk.sh $(HOST_DIR)/relocate-sdk.sh 606 mkdir -p $(HOST_DIR)/share/buildroot 607 echo $(HOST_DIR) > $(HOST_DIR)/share/buildroot/sdk-location 608 609BR2_SDK_PREFIX ?= $(GNU_TARGET_NAME)_sdk-buildroot 610.PHONY: sdk 611sdk: prepare-sdk $(BR2_TAR_HOST_DEPENDENCY) 612 @$(call MESSAGE,"Generating SDK tarball") 613 $(if $(BR2_SDK_PREFIX),,$(error BR2_SDK_PREFIX can not be empty)) 614 $(Q)mkdir -p $(BINARIES_DIR) 615 $(TAR) czf "$(BINARIES_DIR)/$(BR2_SDK_PREFIX).tar.gz" \ 616 --owner=0 --group=0 --numeric-owner \ 617 --transform='s#^$(patsubst /%,%,$(HOST_DIR))#$(BR2_SDK_PREFIX)#' \ 618 -C / $(patsubst /%,%,$(HOST_DIR)) 619 620RSYNC_VCS_EXCLUSIONS = \ 621 --exclude .svn --exclude .git --exclude .hg --exclude .bzr \ 622 --exclude CVS 623 624# When stripping, obey to BR2_STRIP_EXCLUDE_DIRS and 625# BR2_STRIP_EXCLUDE_FILES 626STRIP_FIND_COMMON_CMD = \ 627 find $(TARGET_DIR) \ 628 $(if $(call qstrip,$(BR2_STRIP_EXCLUDE_DIRS)), \ 629 \( $(call finddirclauses,$(TARGET_DIR),$(call qstrip,$(BR2_STRIP_EXCLUDE_DIRS))) \) \ 630 -prune -o \ 631 ) \ 632 $(if $(call qstrip,$(BR2_STRIP_EXCLUDE_FILES)), \ 633 -not \( $(call findfileclauses,$(call qstrip,$(BR2_STRIP_EXCLUDE_FILES))) \) ) 634 635# Regular stripping for everything, except libpthread, ld-*.so and 636# kernel modules: 637# - libpthread.so: a non-stripped libpthread shared library is needed for 638# proper debugging of pthread programs using gdb. 639# - ld.so: a non-stripped dynamic linker library is needed for valgrind 640# - kernel modules (*.ko): do not function properly when stripped like normal 641# applications and libraries. Normally kernel modules are already excluded 642# by the executable permission check, so the explicit exclusion is only 643# done for kernel modules with incorrect permissions. 644STRIP_FIND_CMD = \ 645 $(STRIP_FIND_COMMON_CMD) \ 646 -type f \( -perm /111 -o -name '*.so*' \) \ 647 -not \( $(call findfileclauses,libpthread*.so* ld-*.so* *.ko) \) \ 648 -print0 649 650# Special stripping (only debugging symbols) for libpthread and ld-*.so. 651STRIP_FIND_SPECIAL_LIBS_CMD = \ 652 $(STRIP_FIND_COMMON_CMD) \ 653 \( -name 'ld-*.so*' -o -name 'libpthread*.so*' \) \ 654 -print0 655 656# Generate locale data. 657ifeq ($(BR2_TOOLCHAIN_USES_GLIBC),y) 658GLIBC_GENERATE_LOCALES = $(call qstrip,$(BR2_GENERATE_LOCALE)) 659ifneq ($(GLIBC_GENERATE_LOCALES),) 660PACKAGES += host-localedef 661 662define GENERATE_GLIBC_LOCALES 663 +$(MAKE) -f support/misc/gen-glibc-locales.mk \ 664 ENDIAN=$(call LOWERCASE,$(BR2_ENDIAN)) \ 665 LOCALES="$(GLIBC_GENERATE_LOCALES)" \ 666 Q=$(Q) 667endef 668TARGET_FINALIZE_HOOKS += GENERATE_GLIBC_LOCALES 669endif 670endif 671 672ifeq ($(BR2_ENABLE_LOCALE_PURGE),y) 673LOCALE_WHITELIST = $(BUILD_DIR)/locales.nopurge 674LOCALE_NOPURGE = $(call qstrip,$(BR2_ENABLE_LOCALE_WHITELIST)) 675 676# This piece of junk does the following: 677# First collect the whitelist in a file. 678# Then go over all the locale dirs and for each subdir, check if it exists 679# in the whitelist file. If it doesn't, kill it. 680# Finally, specifically for X11, regenerate locale.dir from the whitelist. 681define PURGE_LOCALES 682 printf '%s\n' $(LOCALE_NOPURGE) locale-archive > $(LOCALE_WHITELIST) 683 684 for dir in $(addprefix $(TARGET_DIR),/usr/share/locale /usr/share/X11/locale /usr/lib/locale); \ 685 do \ 686 if [ ! -d $$dir ]; then continue; fi; \ 687 for langdir in $$dir/*; \ 688 do \ 689 if [ -e "$${langdir}" ]; \ 690 then \ 691 grep -qx "$${langdir##*/}" $(LOCALE_WHITELIST) || rm -rf $$langdir; \ 692 fi \ 693 done; \ 694 done 695 if [ -d $(TARGET_DIR)/usr/share/X11/locale ]; \ 696 then \ 697 for lang in $(LOCALE_NOPURGE); \ 698 do \ 699 if [ -f $(TARGET_DIR)/usr/share/X11/locale/$$lang/XLC_LOCALE ]; \ 700 then \ 701 echo "$$lang/XLC_LOCALE: $$lang"; \ 702 fi \ 703 done > $(TARGET_DIR)/usr/share/X11/locale/locale.dir; \ 704 fi 705endef 706TARGET_FINALIZE_HOOKS += PURGE_LOCALES 707endif 708 709$(TARGETS_ROOTFS): target-finalize 710 711# Avoid the rootfs name leaking down the dependency chain 712target-finalize: ROOTFS= 713 714TARGET_DIR_FILES_LISTS = $(sort $(wildcard $(BUILD_DIR)/*/.files-list.txt)) 715HOST_DIR_FILES_LISTS = $(sort $(wildcard $(BUILD_DIR)/*/.files-list-host.txt)) 716STAGING_DIR_FILES_LISTS = $(sort $(wildcard $(BUILD_DIR)/*/.files-list-staging.txt)) 717 718.PHONY: host-finalize 719host-finalize: $(PACKAGES) $(HOST_DIR) $(HOST_DIR_SYMLINK) 720 @$(call MESSAGE,"Finalizing host directory") 721 $(call per-package-rsync,$(sort $(PACKAGES)),host,$(HOST_DIR),copy) 722 723.PHONY: staging-finalize 724staging-finalize: $(STAGING_DIR_SYMLINK) 725 726.PHONY: target-finalize 727target-finalize: $(PACKAGES) $(TARGET_DIR) host-finalize 728 @$(call MESSAGE,"Finalizing target directory") 729 $(call per-package-rsync,$(sort $(PACKAGES)),target,$(TARGET_DIR),copy) 730 $(foreach hook,$(TARGET_FINALIZE_HOOKS),$($(hook))$(sep)) 731 rm -rf $(TARGET_DIR)/usr/include $(TARGET_DIR)/usr/share/aclocal \ 732 $(TARGET_DIR)/usr/lib/pkgconfig $(TARGET_DIR)/usr/share/pkgconfig \ 733 $(TARGET_DIR)/usr/lib/cmake $(TARGET_DIR)/usr/share/cmake \ 734 $(TARGET_DIR)/usr/lib/rpm $(TARGET_DIR)/usr/doc 735 find $(TARGET_DIR)/usr/{lib,share}/ -name '*.cmake' -print0 | xargs -0 rm -f 736 find $(TARGET_DIR)/lib/ $(TARGET_DIR)/usr/lib/ $(TARGET_DIR)/usr/libexec/ \ 737 \( -name '*.a' -o -name '*.la' -o -name '*.prl' \) -print0 | xargs -0 rm -f 738ifneq ($(BR2_PACKAGE_GDB),y) 739 rm -rf $(TARGET_DIR)/usr/share/gdb 740endif 741ifneq ($(BR2_PACKAGE_BASH),y) 742 rm -rf $(TARGET_DIR)/usr/share/bash-completion 743 rm -rf $(TARGET_DIR)/etc/bash_completion.d 744endif 745ifneq ($(BR2_PACKAGE_ZSH),y) 746 rm -rf $(TARGET_DIR)/usr/share/zsh 747endif 748 rm -rf $(TARGET_DIR)/usr/man $(TARGET_DIR)/usr/share/man 749 rm -rf $(TARGET_DIR)/usr/info $(TARGET_DIR)/usr/share/info 750 rm -rf $(TARGET_DIR)/usr/doc $(TARGET_DIR)/usr/share/doc 751 rm -rf $(TARGET_DIR)/usr/share/gtk-doc 752 rmdir $(TARGET_DIR)/usr/share 2>/dev/null || true 753ifneq ($(BR2_ENABLE_DEBUG):$(BR2_STRIP_strip),y:) 754 rm -rf $(TARGET_DIR)/lib/debug $(TARGET_DIR)/usr/lib/debug 755endif 756 $(STRIP_FIND_CMD) | xargs -0 $(STRIPCMD) 2>/dev/null || true 757 $(STRIP_FIND_SPECIAL_LIBS_CMD) | xargs -0 -r $(STRIPCMD) $(STRIP_STRIP_DEBUG) 2>/dev/null || true 758 759 test -f $(TARGET_DIR)/etc/ld.so.conf && \ 760 { echo "ERROR: we shouldn't have a /etc/ld.so.conf file"; exit 1; } || true 761 test -d $(TARGET_DIR)/etc/ld.so.conf.d && \ 762 { echo "ERROR: we shouldn't have a /etc/ld.so.conf.d directory"; exit 1; } || true 763 mkdir -p $(TARGET_DIR)/etc 764 ( \ 765 echo "NAME=Buildroot"; \ 766 echo "VERSION=$(BR2_VERSION_FULL)"; \ 767 echo "ID=buildroot"; \ 768 echo "VERSION_ID=$(BR2_VERSION)"; \ 769 echo "PRETTY_NAME=\"Buildroot $(BR2_VERSION)\"" \ 770 ) > $(TARGET_DIR)/usr/lib/os-release 771 ln -sf ../usr/lib/os-release $(TARGET_DIR)/etc 772 773 @$(call MESSAGE,"Sanitizing RPATH in target tree") 774 PARALLEL_JOBS=$(PARALLEL_JOBS) \ 775 PER_PACKAGE_DIR=$(PER_PACKAGE_DIR) \ 776 $(TOPDIR)/support/scripts/fix-rpath target 777 778# For a merged /usr, ensure that /lib, /bin and /sbin and their /usr 779# counterparts are appropriately setup as symlinks ones to the others. 780ifeq ($(BR2_ROOTFS_MERGED_USR),y) 781 782 $(foreach d, $(call qstrip,$(BR2_ROOTFS_OVERLAY)), \ 783 @$(call MESSAGE,"Sanity check in overlay $(d)")$(sep) \ 784 $(Q)not_merged_dirs="$$(support/scripts/check-merged-usr.sh $(d))"; \ 785 test -n "$$not_merged_dirs" && { \ 786 echo "ERROR: The overlay in $(d) is not" \ 787 "using a merged /usr for the following directories:" \ 788 $$not_merged_dirs; \ 789 exit 1; \ 790 } || true$(sep)) 791 792endif # merged /usr 793 794 $(foreach d, $(call qstrip,$(BR2_ROOTFS_OVERLAY)), \ 795 @$(call MESSAGE,"Copying overlay $(d)")$(sep) \ 796 $(Q)$(call SYSTEM_RSYNC,$(d),$(TARGET_DIR))$(sep)) 797 798 $(Q)$(if $(TARGET_DIR_FILES_LISTS), \ 799 cat $(TARGET_DIR_FILES_LISTS)) > $(BUILD_DIR)/packages-file-list.txt 800 $(Q)$(if $(HOST_DIR_FILES_LISTS), \ 801 cat $(HOST_DIR_FILES_LISTS)) > $(BUILD_DIR)/packages-file-list-host.txt 802 $(Q)$(if $(STAGING_DIR_FILES_LISTS), \ 803 cat $(STAGING_DIR_FILES_LISTS)) > $(BUILD_DIR)/packages-file-list-staging.txt 804 805 $(foreach s, $(call qstrip,$(BR2_ROOTFS_POST_BUILD_SCRIPT)), \ 806 @$(call MESSAGE,"Executing post-build script $(s)")$(sep) \ 807 $(Q)$(EXTRA_ENV) $(s) \ 808 $(TARGET_DIR) \ 809 $(call qstrip,$(BR2_ROOTFS_POST_SCRIPT_ARGS)) \ 810 $(call qstrip,$(BR2_ROOTFS_POST_BUILD_SCRIPT_ARGS))$(sep)) 811 812 touch $(TARGET_DIR)/usr 813 814# Note: this will run in the filesystem context, so will use a copy 815# of target/, not the real one, so the files are still available on 816# re-builds (foo-rebuild, etc...) 817define ROOTFS_RM_HWDB_DATA 818 rm -rf $(TARGET_DIR)/usr/lib/udev/hwdb.d/ $(TARGET_DIR)/etc/udev/hwdb.d/ 819endef 820ROOTFS_PRE_CMD_HOOKS += ROOTFS_RM_HWDB_DATA 821 822.PHONY: target-post-image 823target-post-image: $(TARGETS_ROOTFS) target-finalize staging-finalize 824 @rm -f $(ROOTFS_COMMON_TAR) 825 $(Q)mkdir -p $(BINARIES_DIR) 826 @$(foreach s, $(call qstrip,$(BR2_ROOTFS_POST_IMAGE_SCRIPT)), \ 827 $(call MESSAGE,"Executing post-image script $(s)"); \ 828 $(EXTRA_ENV) $(s) \ 829 $(BINARIES_DIR) \ 830 $(call qstrip,$(BR2_ROOTFS_POST_SCRIPT_ARGS)) \ 831 $(call qstrip,$(BR2_ROOTFS_POST_IMAGE_SCRIPT_ARGS))$(sep)) 832 833.PHONY: source 834source: $(foreach p,$(PACKAGES),$(p)-all-source) 835 836.PHONY: _external-deps external-deps 837_external-deps: $(foreach p,$(PACKAGES),$(p)-all-external-deps) 838external-deps: 839 @$(MAKE1) -Bs $(EXTRAMAKEARGS) _external-deps | sort -u 840 841.PHONY: legal-info-clean 842legal-info-clean: 843 @rm -fr $(LEGAL_INFO_DIR) 844 845.PHONY: legal-info-prepare 846legal-info-prepare: $(LEGAL_INFO_DIR) 847 @$(call MESSAGE,"Buildroot $(BR2_VERSION_FULL) Collecting legal info") 848 @$(call legal-license-file,HOST,buildroot,buildroot,COPYING,COPYING,support/legal-info/buildroot.hash) 849 @$(call legal-manifest,TARGET,PACKAGE,VERSION,LICENSE,LICENSE FILES,SOURCE ARCHIVE,SOURCE SITE,DEPENDENCIES WITH LICENSES) 850 @$(call legal-manifest,HOST,PACKAGE,VERSION,LICENSE,LICENSE FILES,SOURCE ARCHIVE,SOURCE SITE,DEPENDENCIES WITH LICENSES) 851 @$(call legal-manifest,HOST,buildroot,$(BR2_VERSION_FULL),GPL-2.0+,COPYING,not saved,not saved) 852 @$(call legal-warning,the Buildroot source code has not been saved) 853 @cp $(BR2_CONFIG) $(LEGAL_INFO_DIR)/buildroot.config 854 855.PHONY: legal-info 856legal-info: legal-info-clean legal-info-prepare $(foreach p,$(PACKAGES),$(p)-all-legal-info) \ 857 $(REDIST_SOURCES_DIR_TARGET) $(REDIST_SOURCES_DIR_HOST) 858 @cat support/legal-info/README.header >>$(LEGAL_REPORT) 859 @if [ -r $(LEGAL_WARNINGS) ]; then \ 860 cat support/legal-info/README.warnings-header \ 861 $(LEGAL_WARNINGS) >>$(LEGAL_REPORT); \ 862 cat $(LEGAL_WARNINGS); fi 863 @rm -f $(LEGAL_WARNINGS) 864 @(cd $(LEGAL_INFO_DIR); \ 865 find * -type f -exec sha256sum {} + | LC_ALL=C sort -k2 \ 866 >.legal-info.sha256; \ 867 mv .legal-info.sha256 legal-info.sha256) 868 @echo "Legal info produced in $(LEGAL_INFO_DIR)" 869 870.PHONY: show-targets 871show-targets: 872 @echo $(sort $(PACKAGES)) $(sort $(TARGETS_ROOTFS)) 873 874.PHONY: show-build-order 875show-build-order: $(patsubst %,%-show-build-order,$(PACKAGES)) 876 877.PHONY: graph-build 878graph-build: $(O)/build/build-time.log 879 @install -d $(GRAPHS_DIR) 880 $(foreach o,name build duration,./support/scripts/graph-build-time \ 881 --type=histogram --order=$(o) --input=$(<) \ 882 --output=$(GRAPHS_DIR)/build.hist-$(o).$(BR_GRAPH_OUT) \ 883 $(if $(BR2_GRAPH_ALT),--alternate-colors)$(sep)) 884 $(foreach t,packages steps,./support/scripts/graph-build-time \ 885 --type=pie-$(t) --input=$(<) \ 886 --output=$(GRAPHS_DIR)/build.pie-$(t).$(BR_GRAPH_OUT) \ 887 $(if $(BR2_GRAPH_ALT),--alternate-colors)$(sep)) 888 ./support/scripts/graph-build-time --type=timeline --input=$(<) \ 889 --output=$(GRAPHS_DIR)/build.timeline.$(BR_GRAPH_OUT) \ 890 $(if $(BR2_GRAPH_ALT),--alternate-colors) 891 892.PHONY: graph-depends-requirements 893graph-depends-requirements: 894 @dot -? >/dev/null 2>&1 || \ 895 { echo "ERROR: The 'dot' program from Graphviz is needed for graph-depends" >&2; exit 1; } 896 897.PHONY: graph-depends 898graph-depends: graph-depends-requirements 899 @$(INSTALL) -d $(GRAPHS_DIR) 900 @cd "$(CONFIG_DIR)"; \ 901 $(TOPDIR)/support/scripts/graph-depends $(BR2_GRAPH_DEPS_OPTS) \ 902 --direct -o $(GRAPHS_DIR)/$(@).dot 903 dot $(BR2_GRAPH_DOT_OPTS) -T$(BR_GRAPH_OUT) \ 904 -o $(GRAPHS_DIR)/$(@).$(BR_GRAPH_OUT) \ 905 $(GRAPHS_DIR)/$(@).dot 906 907.PHONY: graph-size 908graph-size: 909 $(Q)mkdir -p $(GRAPHS_DIR) 910 $(Q)$(TOPDIR)/support/scripts/size-stats --builddir $(BASE_DIR) \ 911 --graph $(GRAPHS_DIR)/graph-size.$(BR_GRAPH_OUT) \ 912 --file-size-csv $(GRAPHS_DIR)/file-size-stats.csv \ 913 --package-size-csv $(GRAPHS_DIR)/package-size-stats.csv \ 914 $(BR2_GRAPH_SIZE_OPTS) 915 916.PHONY: check-dependencies 917check-dependencies: 918 @cd "$(CONFIG_DIR)"; \ 919 $(TOPDIR)/support/scripts/graph-depends -C 920 921.PHONY: show-info 922show-info: 923 @: 924 $(info $(call clean-json, \ 925 { $(foreach p, \ 926 $(sort $(foreach i,$(PACKAGES) $(TARGETS_ROOTFS), \ 927 $(i) \ 928 $($(call UPPERCASE,$(i))_FINAL_RECURSIVE_DEPENDENCIES) \ 929 ) \ 930 ), \ 931 $(call json-info,$(call UPPERCASE,$(p)))$(comma) \ 932 ) } \ 933 ) \ 934 ) 935 936.PHONY: pkg-stats 937pkg-stats: 938 @cd "$(CONFIG_DIR)" ; \ 939 $(TOPDIR)/support/scripts/pkg-stats -c \ 940 --json $(O)/pkg-stats.json \ 941 --html $(O)/pkg-stats.html \ 942 --nvd-path $(DL_DIR)/buildroot-nvd 943 944else # ifeq ($(BR2_HAVE_DOT_CONFIG),y) 945 946# Some subdirectories are also package names. To avoid that "make linux" 947# on an unconfigured tree produces "Nothing to be done", add an explicit 948# rule for it. 949# Also for 'all' we error out and ask the user to configure first. 950.PHONY: linux toolchain 951linux toolchain all: outputmakefile 952 $(error Please configure Buildroot first (e.g. "make menuconfig")) 953 @exit 1 954 955endif # ifeq ($(BR2_HAVE_DOT_CONFIG),y) 956 957# configuration 958# --------------------------------------------------------------------------- 959 960HOSTCFLAGS = $(CFLAGS_FOR_BUILD) 961export HOSTCFLAGS 962 963$(BUILD_DIR)/buildroot-config/%onf: 964 mkdir -p $(@D)/lxdialog 965 PKG_CONFIG_PATH="$(HOST_PKG_CONFIG_PATH)" $(MAKE) CC="$(HOSTCC_NOCCACHE)" HOSTCC="$(HOSTCC_NOCCACHE)" \ 966 obj=$(@D) -C $(CONFIG) -f Makefile.br $(@F) 967 968DEFCONFIG = $(call qstrip,$(BR2_DEFCONFIG)) 969 970# We don't want to fully expand BR2_DEFCONFIG here, so Kconfig will 971# recognize that if it's still at its default $(CONFIG_DIR)/defconfig 972COMMON_CONFIG_ENV = \ 973 BR2_DEFCONFIG='$(call qstrip,$(value BR2_DEFCONFIG))' \ 974 KCONFIG_AUTOCONFIG=$(BUILD_DIR)/buildroot-config/auto.conf \ 975 KCONFIG_AUTOHEADER=$(BUILD_DIR)/buildroot-config/autoconf.h \ 976 KCONFIG_TRISTATE=$(BUILD_DIR)/buildroot-config/tristate.config \ 977 BR2_CONFIG=$(BR2_CONFIG) \ 978 HOST_GCC_VERSION="$(HOSTCC_VERSION)" \ 979 BASE_DIR=$(BASE_DIR) \ 980 SKIP_LEGACY= 981 982xconfig: $(BUILD_DIR)/buildroot-config/qconf outputmakefile 983 @$(COMMON_CONFIG_ENV) $< $(CONFIG_CONFIG_IN) 984 985gconfig: $(BUILD_DIR)/buildroot-config/gconf outputmakefile 986 @$(COMMON_CONFIG_ENV) srctree=$(TOPDIR) $< $(CONFIG_CONFIG_IN) 987 988menuconfig: $(BUILD_DIR)/buildroot-config/mconf outputmakefile 989 @$(COMMON_CONFIG_ENV) $< $(CONFIG_CONFIG_IN) 990 991nconfig: $(BUILD_DIR)/buildroot-config/nconf outputmakefile 992 @$(COMMON_CONFIG_ENV) $< $(CONFIG_CONFIG_IN) 993 994config: $(BUILD_DIR)/buildroot-config/conf outputmakefile 995 @$(COMMON_CONFIG_ENV) $< $(CONFIG_CONFIG_IN) 996 997# For the config targets that automatically select options, we pass 998# SKIP_LEGACY=y to disable the legacy options. However, in that case 999# no values are set for the legacy options so a subsequent oldconfig 1000# will query them. Therefore, run an additional olddefconfig. 1001 1002randconfig allyesconfig alldefconfig allnoconfig: $(BUILD_DIR)/buildroot-config/conf outputmakefile 1003 @$(COMMON_CONFIG_ENV) SKIP_LEGACY=y $< --$@ $(CONFIG_CONFIG_IN) 1004 @$(COMMON_CONFIG_ENV) $< --olddefconfig $(CONFIG_CONFIG_IN) >/dev/null 1005 1006randpackageconfig allyespackageconfig allnopackageconfig: $(BUILD_DIR)/buildroot-config/conf outputmakefile 1007 @grep -v BR2_PACKAGE_ $(BR2_CONFIG) > $(CONFIG_DIR)/.config.nopkg 1008 @$(COMMON_CONFIG_ENV) SKIP_LEGACY=y \ 1009 KCONFIG_ALLCONFIG=$(CONFIG_DIR)/.config.nopkg \ 1010 $< --$(subst package,,$@) $(CONFIG_CONFIG_IN) 1011 @rm -f $(CONFIG_DIR)/.config.nopkg 1012 @$(COMMON_CONFIG_ENV) $< --olddefconfig $(CONFIG_CONFIG_IN) >/dev/null 1013 1014oldconfig syncconfig olddefconfig: $(BUILD_DIR)/buildroot-config/conf outputmakefile 1015 @$(COMMON_CONFIG_ENV) $< --$@ $(CONFIG_CONFIG_IN) 1016 1017defconfig: $(BUILD_DIR)/buildroot-config/conf outputmakefile 1018 @$(COMMON_CONFIG_ENV) $< --defconfig$(if $(DEFCONFIG),=$(DEFCONFIG)) $(CONFIG_CONFIG_IN) 1019 1020%_defconfig: $(BUILD_DIR)/buildroot-config/conf outputmakefile 1021 @defconfig=$(or \ 1022 $(firstword \ 1023 $(foreach d, \ 1024 $(call reverse,$(TOPDIR) $(BR2_EXTERNAL_DIRS)), \ 1025 $(wildcard $(d)/configs/$@) \ 1026 ) \ 1027 ), \ 1028 $(error "Can't find $@") \ 1029 ); \ 1030 $(COMMON_CONFIG_ENV) BR2_DEFCONFIG=$${defconfig} \ 1031 $< --defconfig=$${defconfig} $(CONFIG_CONFIG_IN) 1032 1033update-defconfig: savedefconfig 1034 1035savedefconfig: $(BUILD_DIR)/buildroot-config/conf outputmakefile 1036 @$(COMMON_CONFIG_ENV) $< \ 1037 --savedefconfig=$(if $(DEFCONFIG),$(DEFCONFIG),$(CONFIG_DIR)/defconfig) \ 1038 $(CONFIG_CONFIG_IN) 1039 @$(SED) '/^BR2_DEFCONFIG=/d' $(if $(DEFCONFIG),$(DEFCONFIG),$(CONFIG_DIR)/defconfig) 1040 1041.PHONY: defconfig savedefconfig update-defconfig 1042 1043################################################################################ 1044# 1045# Cleanup and misc junk 1046# 1047################################################################################ 1048 1049# staging and target directories do NOT list these as 1050# dependencies anywhere else 1051$(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): 1052 @mkdir -p $@ 1053 1054# outputmakefile generates a Makefile in the output directory, if using a 1055# separate output directory. This allows convenient use of make in the 1056# output directory. 1057.PHONY: outputmakefile 1058outputmakefile: 1059ifeq ($(NEED_WRAPPER),y) 1060 $(Q)$(TOPDIR)/support/scripts/mkmakefile $(TOPDIR) $(O) 1061endif 1062 1063# printvars prints all the variables currently defined in our 1064# Makefiles. Alternatively, if a non-empty VARS variable is passed, 1065# only the variables matching the make pattern passed in VARS are 1066# displayed. 1067# show-vars does the same, but as a JSON dictionnary. 1068# 1069# Note: we iterate of .VARIABLES and filter each variable individually, 1070# to workaround a bug in make 4.3; see https://savannah.gnu.org/bugs/?59093 1071.PHONY: printvars 1072printvars: 1073ifndef VARS 1074 $(error Please pass a non-empty VARS to 'make printvars') 1075endif 1076 @: 1077 $(foreach V, \ 1078 $(sort $(foreach X, $(.VARIABLES), $(filter $(VARS),$(X)))), \ 1079 $(if $(filter-out environment% default automatic, \ 1080 $(origin $V)), \ 1081 $(if $(QUOTED_VARS),\ 1082 $(info $V='$(subst ','\'',$(if $(RAW_VARS),$(value $V),$($V)))'), \ 1083 $(info $V=$(if $(RAW_VARS),$(value $V),$($V)))))) 1084# ')))) # Syntax colouring... 1085 1086# See details above, same as for printvars 1087.PHONY: show-vars 1088show-vars: VARS?=% 1089show-vars: 1090 @: 1091 $(foreach i, \ 1092 $(call clean-json, { \ 1093 $(foreach V, \ 1094 $(.VARIABLES), \ 1095 $(and $(filter $(VARS),$(V)) \ 1096 , \ 1097 $(filter-out environment% default automatic, $(origin $V)) \ 1098 , \ 1099 "$V": { \ 1100 "expanded": $(call mk-json-str,$($V))$(comma) \ 1101 "raw": $(call mk-json-str,$(value $V)) \ 1102 }$(comma) \ 1103 ) \ 1104 ) \ 1105 } ) \ 1106 , \ 1107 $(info $(i)) \ 1108 ) 1109 1110.PHONY: clean 1111clean: 1112 rm -rf $(BASE_TARGET_DIR) $(BINARIES_DIR) $(HOST_DIR) $(HOST_DIR_SYMLINK) \ 1113 $(BUILD_DIR) $(BASE_DIR)/staging \ 1114 $(LEGAL_INFO_DIR) $(GRAPHS_DIR) $(PER_PACKAGE_DIR) $(O)/pkg-stats.* 1115 1116.PHONY: distclean 1117distclean: clean 1118ifeq ($(O),$(CURDIR)/output) 1119 rm -rf $(O) 1120endif 1121 rm -rf $(TOPDIR)/dl $(BR2_CONFIG) $(CONFIG_DIR)/.config.old $(CONFIG_DIR)/..config.tmp \ 1122 $(CONFIG_DIR)/.auto.deps $(BASE_DIR)/.br2-external.* 1123 1124.PHONY: help 1125help: 1126 @echo 'Cleaning:' 1127 @echo ' clean - delete all files created by build' 1128 @echo ' distclean - delete all non-source files (including .config)' 1129 @echo 1130 @echo 'Build:' 1131 @echo ' all - make world' 1132 @echo ' toolchain - build toolchain' 1133 @echo ' sdk - build relocatable SDK' 1134 @echo 1135 @echo 'Configuration:' 1136 @echo ' menuconfig - interactive curses-based configurator' 1137 @echo ' nconfig - interactive ncurses-based configurator' 1138 @echo ' xconfig - interactive Qt-based configurator' 1139 @echo ' gconfig - interactive GTK-based configurator' 1140 @echo ' oldconfig - resolve any unresolved symbols in .config' 1141 @echo ' syncconfig - Same as oldconfig, but quietly, additionally update deps' 1142 @echo ' olddefconfig - Same as syncconfig but sets new symbols to their default value' 1143 @echo ' randconfig - New config with random answer to all options' 1144 @echo ' defconfig - New config with default answer to all options;' 1145 @echo ' BR2_DEFCONFIG, if set on the command line, is used as input' 1146 @echo ' savedefconfig - Save current config to BR2_DEFCONFIG (minimal config)' 1147 @echo ' update-defconfig - Same as savedefconfig' 1148 @echo ' allyesconfig - New config where all options are accepted with yes' 1149 @echo ' allnoconfig - New config where all options are answered with no' 1150 @echo ' alldefconfig - New config where all options are set to default' 1151 @echo ' randpackageconfig - New config with random answer to package options' 1152 @echo ' allyespackageconfig - New config where pkg options are accepted with yes' 1153 @echo ' allnopackageconfig - New config where package options are answered with no' 1154 @echo 1155 @echo 'Package-specific:' 1156 @echo ' <pkg> - Build and install <pkg> and all its dependencies' 1157 @echo ' <pkg>-source - Only download the source files for <pkg>' 1158 @echo ' <pkg>-extract - Extract <pkg> sources' 1159 @echo ' <pkg>-patch - Apply patches to <pkg>' 1160 @echo ' <pkg>-depends - Build <pkg>'\''s dependencies' 1161 @echo ' <pkg>-configure - Build <pkg> up to the configure step' 1162 @echo ' <pkg>-build - Build <pkg> up to the build step' 1163 @echo ' <pkg>-show-info - generate info about <pkg>, as a JSON blurb' 1164 @echo ' <pkg>-show-depends - List packages on which <pkg> depends' 1165 @echo ' <pkg>-show-rdepends - List packages which have <pkg> as a dependency' 1166 @echo ' <pkg>-show-recursive-depends' 1167 @echo ' - Recursively list packages on which <pkg> depends' 1168 @echo ' <pkg>-show-recursive-rdepends' 1169 @echo ' - Recursively list packages which have <pkg> as a dependency' 1170 @echo ' <pkg>-graph-depends - Generate a graph of <pkg>'\''s dependencies' 1171 @echo ' <pkg>-graph-rdepends - Generate a graph of <pkg>'\''s reverse dependencies' 1172 @echo ' <pkg>-dirclean - Remove <pkg> build directory' 1173 @echo ' <pkg>-reconfigure - Restart the build from the configure step' 1174 @echo ' <pkg>-rebuild - Restart the build from the build step' 1175 @echo ' <pkg>-reinstall - Restart the build from the install step' 1176 $(foreach p,$(HELP_PACKAGES), \ 1177 @echo $(sep) \ 1178 @echo '$($(p)_NAME):' $(sep) \ 1179 $($(p)_HELP_CMDS)$(sep)) 1180 @echo 1181 @echo 'Documentation:' 1182 @echo ' manual - build manual in all formats' 1183 @echo ' manual-html - build manual in HTML' 1184 @echo ' manual-split-html - build manual in split HTML' 1185 @echo ' manual-pdf - build manual in PDF' 1186 @echo ' manual-text - build manual in text' 1187 @echo ' manual-epub - build manual in ePub' 1188 @echo ' graph-build - generate graphs of the build times' 1189 @echo ' graph-depends - generate graph of the dependency tree' 1190 @echo ' graph-size - generate stats of the filesystem size' 1191 @echo ' list-defconfigs - list all defconfigs (pre-configured minimal systems)' 1192 @echo 1193 @echo 'Miscellaneous:' 1194 @echo ' source - download all sources needed for offline-build' 1195 @echo ' external-deps - list external packages used' 1196 @echo ' legal-info - generate info about license compliance' 1197 @echo ' show-info - generate info about packages, as a JSON blurb' 1198 @echo ' pkg-stats - generate info about packages as JSON and HTML' 1199 @echo ' printvars - dump internal variables selected with VARS=...' 1200 @echo ' show-vars - dump all internal variables as a JSON blurb; use VARS=...' 1201 @echo ' to limit the list to variables names matching that pattern' 1202 @echo 1203 @echo ' make V=0|1 - 0 => quiet build (default), 1 => verbose build' 1204 @echo ' make O=dir - Locate all output files in "dir", including .config' 1205 @echo 1206 @echo 'For further details, see README, generate the Buildroot manual, or consult' 1207 @echo 'it on-line at http://buildroot.org/docs.html' 1208 @echo 1209 1210# List the defconfig files 1211# $(1): base directory 1212# $(2): br2-external name, empty for bundled 1213define list-defconfigs 1214 @first=true; \ 1215 for defconfig in $(1)/configs/*_defconfig; do \ 1216 [ -f "$${defconfig}" ] || continue; \ 1217 if $${first}; then \ 1218 if [ "$(2)" ]; then \ 1219 printf 'External configs in "$(call qstrip,$(2))":\n'; \ 1220 else \ 1221 printf "Built-in configs:\n"; \ 1222 fi; \ 1223 first=false; \ 1224 fi; \ 1225 defconfig="$${defconfig##*/}"; \ 1226 printf " %-35s - Build for %s\n" "$${defconfig}" "$${defconfig%_defconfig}"; \ 1227 done; \ 1228 $${first} || printf "\n" 1229endef 1230 1231# We iterate over BR2_EXTERNAL_NAMES rather than BR2_EXTERNAL_DIRS, 1232# because we want to display the name of the br2-external tree. 1233.PHONY: list-defconfigs 1234list-defconfigs: 1235 $(call list-defconfigs,$(TOPDIR)) 1236 $(foreach name,$(BR2_EXTERNAL_NAMES),\ 1237 $(call list-defconfigs,$(BR2_EXTERNAL_$(name)_PATH),\ 1238 $(BR2_EXTERNAL_$(name)_DESC))$(sep)) 1239 1240release: OUT = buildroot-$(BR2_VERSION) 1241 1242# Create release tarballs. We need to fiddle a bit to add the generated 1243# documentation to the git output 1244release: 1245 git archive --format=tar --prefix=$(OUT)/ HEAD > $(OUT).tar 1246 $(MAKE) O=$(OUT) manual-html manual-text manual-pdf 1247 $(MAKE) O=$(OUT) distclean 1248 tar rf $(OUT).tar $(OUT) 1249 gzip -9 -c < $(OUT).tar > $(OUT).tar.gz 1250 xz -9 -c < $(OUT).tar > $(OUT).tar.xz 1251 rm -rf $(OUT) $(OUT).tar 1252 1253print-version: 1254 @echo $(BR2_VERSION_FULL) 1255 1256check-package: 1257 $(Q)./utils/check-package `git ls-tree -r --name-only HEAD` \ 1258 --ignore-list=$(TOPDIR)/.checkpackageignore 1259 1260.PHONY: .checkpackageignore 1261.checkpackageignore: 1262 $(Q)./utils/check-package --failed-only `git ls-tree -r --name-only HEAD` \ 1263 > .checkpackageignore 1264 1265include docs/manual/manual.mk 1266-include $(foreach dir,$(BR2_EXTERNAL_DIRS),$(sort $(wildcard $(dir)/docs/*/*.mk))) 1267 1268.PHONY: $(noconfig_targets) 1269 1270# .WAIT was introduced in make 4.4. For older make, define it as phony. 1271.PHONY: .WAIT 1272 1273endif #umask / $(CURDIR) / $(O) 1274