# Makefile for buildroot
#
# Copyright (C) 1999-2005 by Erik Andersen <andersen@codepoet.org>
# Copyright (C) 2006-2014 by the Buildroot developers <buildroot@uclibc.org>
# Copyright (C) 2014-2020 by the Buildroot developers <buildroot@buildroot.org>
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
#

#--------------------------------------------------------------
# Just run 'make menuconfig', configure stuff, then run 'make'.
# You shouldn't need to mess with anything beyond this point...
#--------------------------------------------------------------

# absolute path
TOPDIR := $(CURDIR)
CONFIG_CONFIG_IN = package/Config.in
CONFIG = tools/support/kconfig
DATE := $(shell date +%Y%m%d)

HIDDEN_PREFIX=.hidden

# List of targets and target patterns for which .config doesn't need to be read in
noconfig_targets := menuconfig nconfig gconfig xconfig config oldconfig randconfig \
	defconfig %_defconfig allyesconfig allnoconfig alldefconfig syncconfig release \
	randpackageconfig allyespackageconfig allnopackageconfig \
	print-version olddefconfig manual manual-% check-package check-flake8 add_board del_board \
	external-update

# Some global targets do not trigger a build, but are used to collect
# metadata, or do various checks. When such targets are triggered,
# some packages should not do their configuration sanity
# checks. Provide them a BR_BUILDING variable set to 'y' when we're
# actually building and they should do their sanity checks.
#
# We're building in two situations: when MAKECMDGOALS is empty
# (default target is to build), or when MAKECMDGOALS contains
# something else than one of the nobuild_targets.
nobuild_targets := source %-source clean-source %-srcclean %-distclean\
	legal-info %-legal-info external-deps _external-deps \
	clean distclean help show-targets show-all-packages graph-depends \
	%-graph-depends %-show-depends %-show-version \
	graph-build graph-size list-defconfigs \
	savedefconfig update-defconfig printvars show-vars

ifeq ($(MAKECMDGOALS),)
BR_BUILDING = y
else ifneq ($(filter-out $(nobuild_targets),$(MAKECMDGOALS)),)
BR_BUILDING = y
endif

# We call make recursively to build packages. The command-line overrides that
# are passed to Buildroot don't apply to those package build systems. In
# particular, we don't want to pass down the O=<dir> option for out-of-tree
# builds, because the value specified on the command line will not be correct
# for packages.
MAKEOVERRIDES :=

# Include some helper macros and variables
include tools/support/misc/utils.mk

# Set variables related to in-tree or out-of-tree build.
# Here, both $(O) and $(CURDIR) are absolute canonical paths.
ifeq ($(O),$(CURDIR)/output)
CONFIG_DIR := $(CURDIR)
NEED_WRAPPER =
else
CONFIG_DIR := $(O)
NEED_WRAPPER = y
endif

# bash prints the name of the directory on 'cd <dir>' if CDPATH is
# set, so unset it here to not cause problems. Notice that the export
# line doesn't affect the environment of $(shell ..) calls.
export CDPATH :=

BASE_DIR := $(CANONICAL_O)
$(if $(BASE_DIR),, $(error output directory "$(O)" does not exist))
ifneq ("$(notdir $(BASE_DIR))", "output")
UNIQUE_BUILD_NAME := $(notdir $(BASE_DIR))
endif


# Handling of BR2_EXTERNAL.
#
# The value of BR2_EXTERNAL is stored in .br-external in the output directory.
# The location of the external.mk makefile fragments is computed in that file.
# On subsequent invocations of make, this file is read in. BR2_EXTERNAL can
# still be overridden on the command line, therefore the file is re-created
# every time make is run.

# If user provide BR2_EXTERNAL from cmdline, save it to external.mk
ifeq ($(origin BR2_EXTERNAL), command line)
$(shell echo "LUBAN_EXTERNAL=$(BR2_EXTERNAL)">>$(TOPDIR)/external.mk)
endif

# Load latest LUBAN_EXTERNAL
-include external.mk

# If user not provide BR2_EXTERNAL in cmdline
# Use LUBAN_EXTERNAL value in external.mk
ifeq ($(BR2_EXTERNAL),)
BR2_EXTERNAL := $(LUBAN_EXTERNAL)
endif

# If already configure BR2_EXTERNAL in project, load BR2_EXTERNAL from it
BR2_EXTERNAL_FILE = $(BASE_DIR)/.br2-external.mk
-include $(BR2_EXTERNAL_FILE)

$(shell tools/support/scripts/br2-external -d '$(BASE_DIR)' $(BR2_EXTERNAL))
BR2_EXTERNAL_ERROR =
include $(BR2_EXTERNAL_FILE)
ifneq ($(BR2_EXTERNAL_ERROR),)
$(error $(BR2_EXTERNAL_ERROR))
endif

# Workaround bug in make-4.3: https://savannah.gnu.org/bugs/?57676
$(BASE_DIR)/.br2-external.mk:;

SOURCE_DIR := $(TOPDIR)/source
BUILD_DIR := $(BASE_DIR)/build
BINARIES_DIR := $(BASE_DIR)/images
BASE_TARGET_DIR := $(BASE_DIR)/target
HOST_DIR := $(BASE_DIR)/host
GRAPHS_DIR := $(BASE_DIR)/graphs
PREBUILT_DIR := $(TOPDIR)/prebuilt

BR2_CONFIG = $(CONFIG_DIR)/.config

PREBUILT_TARBALLS=$(wildcard $(PREBUILT_DIR)/*/*)

# Pull in the user's configuration file
ifeq ($(filter $(noconfig_targets),$(MAKECMDGOALS)),)
-include $(BR2_CONFIG)
endif


# To put more focus on warnings, be less verbose as default
# Use 'make V=1' to see the full commands
ifeq ("$(origin V)", "command line")
  KBUILD_VERBOSE = $(V)
endif
ifndef KBUILD_VERBOSE
  KBUILD_VERBOSE = 0
endif

ifeq ($(KBUILD_VERBOSE),1)
  Q =
ifndef VERBOSE
  VERBOSE = 1
endif
export VERBOSE
else
  Q = @
endif

# kconfig uses CONFIG_SHELL
CONFIG_SHELL := $(SHELL)

export SHELL CONFIG_SHELL Q KBUILD_VERBOSE

ifndef HOSTAR
HOSTAR := ar
endif
ifndef HOSTAS
HOSTAS := as
endif
ifndef HOSTCC
HOSTCC := gcc
HOSTCC := $(shell which $(HOSTCC) || type -p $(HOSTCC) || echo gcc)
endif
ifndef HOSTCC_NOCCACHE
HOSTCC_NOCCACHE := $(HOSTCC)
endif
ifndef HOSTCXX
HOSTCXX := g++
HOSTCXX := $(shell which $(HOSTCXX) || type -p $(HOSTCXX) || echo g++)
endif
ifndef HOSTCXX_NOCCACHE
HOSTCXX_NOCCACHE := $(HOSTCXX)
endif
ifndef HOSTCPP
HOSTCPP := cpp
endif
ifndef HOSTLD
HOSTLD := ld
endif
ifndef HOSTLN
HOSTLN := ln
endif
ifndef HOSTNM
HOSTNM := nm
endif
ifndef HOSTOBJCOPY
HOSTOBJCOPY := objcopy
endif
ifndef HOSTRANLIB
HOSTRANLIB := ranlib
endif
HOSTAR := $(shell which $(HOSTAR) || type -p $(HOSTAR) || echo ar)
HOSTAS := $(shell which $(HOSTAS) || type -p $(HOSTAS) || echo as)
HOSTCPP := $(shell which $(HOSTCPP) || type -p $(HOSTCPP) || echo cpp)
HOSTLD := $(shell which $(HOSTLD) || type -p $(HOSTLD) || echo ld)
HOSTLN := $(shell which $(HOSTLN) || type -p $(HOSTLN) || echo ln)
HOSTNM := $(shell which $(HOSTNM) || type -p $(HOSTNM) || echo nm)
HOSTOBJCOPY := $(shell which $(HOSTOBJCOPY) || type -p $(HOSTOBJCOPY) || echo objcopy)
HOSTRANLIB := $(shell which $(HOSTRANLIB) || type -p $(HOSTRANLIB) || echo ranlib)
SED := $(shell which sed || type -p sed) -i -e

export HOSTAR HOSTAS HOSTCC HOSTCXX HOSTLD
export HOSTCC_NOCCACHE HOSTCXX_NOCCACHE

# Determine the userland we are running on.
#
# Note that, despite its name, we are not interested in the actual
# architecture name. This is mostly used to determine whether some
# of the binary tools (e.g. pre-built external toolchains) can run
# on the current host. So we need to know if the userland we're
# running on can actually run those toolchains.
#
# For example, a 64-bit prebuilt toolchain will not run on a 64-bit
# kernel if the userland is 32-bit (e.g. in a chroot for example).
#
# So, we extract the first part of the tuple the host gcc was
# configured to generate code for; we assume this is our userland.
#
export HOSTARCH := $(shell LC_ALL=C $(HOSTCC_NOCCACHE) -v 2>&1 | \
	sed -e '/^Target: \([^-]*\).*/!d' \
	    -e 's//\1/' \
	    -e 's/i.86/x86/' \
	    -e 's/sun4u/sparc64/' \
	    -e 's/arm.*/arm/' \
	    -e 's/sa110/arm/' \
	    -e 's/ppc64/powerpc64/' \
	    -e 's/ppc/powerpc/' \
	    -e 's/macppc/powerpc/' \
	    -e 's/sh.*/sh/' )

# When adding a new host gcc version in Config.in,
# update the HOSTCC_MAX_VERSION variable:
HOSTCC_MAX_VERSION := 9

HOSTCC_VERSION := $(shell V=$$($(HOSTCC_NOCCACHE) --version | \
	sed -n -r 's/^.* ([0-9]*)\.([0-9]*)\.([0-9]*)[ ]*.*/\1 \2/p'); \
	[ "$${V%% *}" -le $(HOSTCC_MAX_VERSION) ] || V=$(HOSTCC_MAX_VERSION); \
	printf "%s" "$${V}")

# For gcc >= 5.x, we only need the major version.
ifneq ($(firstword $(HOSTCC_VERSION)),4)
HOSTCC_VERSION := $(firstword $(HOSTCC_VERSION))
endif

# TODO: Need to check the pkg config setting, wudehuang
# Make sure pkg-config doesn't look outside the buildroot tree
HOST_PKG_CONFIG_PATH := $(PKG_CONFIG_PATH)
unexport PKG_CONFIG_PATH
unexport PKG_CONFIG_SYSROOT_DIR
unexport PKG_CONFIG_LIBDIR

# Having DESTDIR set in the environment confuses the installation
# steps of some packages.
unexport DESTDIR

# Causes breakage with packages that needs host-ruby
unexport RUBYOPT

include package/utils/pkg-utils.mk

ifeq ($(BR2_HAVE_DOT_CONFIG),y)

################################################################################
#
# Hide troublesome environment variables from sub processes
#
################################################################################
unexport CROSS_COMPILE
unexport ARCH
unexport CC
unexport LD
unexport AR
unexport CXX
unexport CPP
unexport RANLIB
unexport CFLAGS
unexport CXXFLAGS
unexport GREP_OPTIONS
unexport TAR_OPTIONS
unexport CONFIG_SITE
unexport QMAKESPEC
unexport TERMINFO
unexport MACHINE
unexport O
unexport GCC_COLORS
unexport PLATFORM
unexport OS

GNU_HOST_NAME := $(shell tools/support/gnuconfig/config.guess)

PACKAGES :=
PACKAGES_ALL :=
# All packages invloved in compiling
PACKAGES_BUILD :=

# silent mode requested?
QUIET := $(if $(findstring s,$(filter-out --%,$(MAKEFLAGS))),-q)

# Strip off the annoying quoting
ARCH := $(call qstrip,$(BR2_ARCH))

KERNEL_ARCH := $(shell echo "$(ARCH)" | sed -e "s/-.*//" \
	-e s/i.86/i386/ -e s/sun4u/sparc64/ \
	-e s/arcle/arc/ \
	-e s/arceb/arc/ \
	-e s/arm.*/arm/ -e s/sa110/arm/ \
	-e s/aarch64.*/arm64/ \
	-e s/nds32.*/nds32/ \
	-e s/or1k/openrisc/ \
	-e s/parisc64/parisc/ \
	-e s/powerpc64.*/powerpc/ \
	-e s/ppc.*/powerpc/ -e s/mips.*/mips/ \
	-e s/riscv.*/riscv/ \
	-e s/sh.*/sh/ \
	-e s/s390x/s390/ \
	-e s/microblazeel/microblaze/)

ZCAT := $(call qstrip,$(BR2_ZCAT))
BZCAT := $(call qstrip,$(BR2_BZCAT))
XZCAT := $(call qstrip,$(BR2_XZCAT))
LZCAT := $(call qstrip,$(BR2_LZCAT))
TAR_OPTIONS = $(call qstrip,$(BR2_TAR_OPTIONS)) -xf

HOST_DIR := $(call qstrip,$(BR2_HOST_DIR))
PREBUILT_DIR := $(call qstrip,$(BR2_PREBUILT_DIR))
TARGET_DIR = $(if $(ROOTFS),$(ROOTFS_$(ROOTFS)_TARGET_DIR),$(BASE_TARGET_DIR))

ifneq ($(HOST_DIR),$(BASE_DIR)/host)
HOST_DIR_SYMLINK = $(BASE_DIR)/host
$(HOST_DIR_SYMLINK): | $(BASE_DIR)
	$(Q)ln -snf $(HOST_DIR) $(HOST_DIR_SYMLINK)
endif

STAGING_DIR_SYMLINK = $(BASE_DIR)/staging
$(STAGING_DIR_SYMLINK): | $(BASE_DIR)
	$(Q)ln -snf $(STAGING_DIR) $(STAGING_DIR_SYMLINK)

# Quotes are needed for spaces and all in the original PATH content.
BR_PATH = "$(HOST_DIR)/bin:$(HOST_DIR)/sbin:$(PATH)"

# Location of a file giving a big fat warning that output/target
# should not be used as the root filesystem.
TARGET_DIR_WARNING_FILE = $(TARGET_DIR)/THIS_IS_NOT_YOUR_ROOT_FILESYSTEM

CHIP_NAME := $(call qstrip,$(LUBAN_CHIP_NAME))
BOARD_NAME := $(call qstrip,$(LUBAN_BOARD_NAME))
TARGET_CHIP_DIR := $(TOPDIR)/target/$(CHIP_NAME)
TARGET_BOARD_DIR := $(TOPDIR)/target/$(CHIP_NAME)/$(BOARD_NAME)
ifneq ($(BR2_TARGET_USERFS1_NAME),)
TARGET_USERFS1_DIR := $(BASE_DIR)/userfs/fs1.$(call qstrip,$(BR2_TARGET_USERFS1_NAME))
endif
ifneq ($(BR2_TARGET_USERFS2_NAME),)
TARGET_USERFS2_DIR := $(BASE_DIR)/userfs/fs2.$(call qstrip,$(BR2_TARGET_USERFS2_NAME))
endif
ifneq ($(BR2_TARGET_USERFS3_NAME),)
TARGET_USERFS3_DIR := $(BASE_DIR)/userfs/fs3.$(call qstrip,$(BR2_TARGET_USERFS3_NAME))
endif

export BR_NO_CCACHE

# Scripts in support/ or post-build scripts may need to reference
# these locations, so export them so it is easier to use
export TOPDIR
export BR2_CONFIG
export BR2_REPRODUCIBLE
export TARGET_DIR
export STAGING_DIR
export STAGING_SUBDIR
export HOST_DIR
export BINARIES_DIR
export BASE_DIR
export PREBUILT_DIR
export PREBUILT_TARBALLS
export TARGET_CHIP_DIR
export TARGET_BOARD_DIR
export TARGET_USERFS1_DIR
export TARGET_USERFS2_DIR
export TARGET_USERFS3_DIR
export UNIQUE_BUILD_NAME

################################################################################
#
# You should probably leave this stuff alone unless you know
# what you are doing.
#
################################################################################

all: world

include package/utils/Makefile.in

include package/arch/arch.mk
include tools/support/dependencies/dependencies.mk

include $(sort $(wildcard package/artinchip/*/*.mk))
include $(sort $(wildcard package/vendor/*/*.mk))
include $(sort $(wildcard package/firmware/*/*.mk))
include $(sort $(wildcard package/opensbi/*.mk))
include $(sort $(wildcard package/uboot/*.mk))
include $(sort $(wildcard package/linux/*.mk))
include $(sort $(wildcard package/system/*.mk))
include $(sort $(wildcard package/fs/*.mk))
include $(sort $(wildcard package/third-party/*/*.mk))
include $(sort $(wildcard package/toolchain/*.mk))
include $(sort $(wildcard package/toolchain/*/*.mk))

# If using a br2-external tree, the BR2_EXTERNAL_$(NAME)_PATH variables
# are also present in the .config file. Since .config is included after
# we defined them in the Makefile, the values for those variables are
# quoted. We just include the generated Makefile fragment .br2-external.mk
# a third time, which will set those variables to the un-quoted values.
include $(BR2_EXTERNAL_FILE)

# Nothing to include if no BR2_EXTERNAL tree in use
include $(BR2_EXTERNAL_MKS)

$(BUILD_DIR)/luban-config/auto.conf: $(BR2_CONFIG)
	$(MAKE1) $(EXTRAMAKEARGS) HOSTCC="$(HOSTCC_NOCCACHE)" HOSTCXX="$(HOSTCXX_NOCCACHE)" syncconfig


.PHONY: prepare
prepare: $(BUILD_DIR)/luban-config/auto.conf

.PHONY: world
world: target-post-image
	@echo
	@echo "Luban is built successfully!"
	@echo

# When stripping, obey to BR2_STRIP_EXCLUDE_DIRS and
# BR2_STRIP_EXCLUDE_FILES
STRIP_FIND_COMMON_CMD = \
	$(Q)find $(TARGET_DIR) \
	$(if $(call qstrip,$(BR2_STRIP_EXCLUDE_DIRS)), \
		\( $(call finddirclauses,$(TARGET_DIR),$(call qstrip,$(BR2_STRIP_EXCLUDE_DIRS))) \) \
		-prune -o \
	) \
	$(if $(call qstrip,$(BR2_STRIP_EXCLUDE_FILES)), \
		-not \( $(call findfileclauses,$(call qstrip,$(BR2_STRIP_EXCLUDE_FILES))) \) )

# Regular stripping for everything, except libpthread, ld-*.so and
# kernel modules:
# - libpthread.so: a non-stripped libpthread shared library is needed for
#   proper debugging of pthread programs using gdb.
# - ld.so: a non-stripped dynamic linker library is needed for valgrind
# - kernel modules (*.ko): do not function properly when stripped like normal
#   applications and libraries. Normally kernel modules are already excluded
#   by the executable permission check, so the explicit exclusion is only
#   done for kernel modules with incorrect permissions.
STRIP_FIND_CMD = \
	$(STRIP_FIND_COMMON_CMD) \
	-type f \( -perm /111 -o -name '*.so*' \) \
	-not \( $(call findfileclauses,libpthread*.so* ld-*.so* *.ko) \) \
	-print0

# Special stripping (only debugging symbols) for libpthread and ld-*.so.
STRIP_FIND_SPECIAL_LIBS_CMD = \
	$(STRIP_FIND_COMMON_CMD) \
	\( -name 'ld-*.so*' -o -name 'libpthread*.so*' \) \
	-print0

# Generate locale data.
ifeq ($(BR2_TOOLCHAIN_USES_GLIBC),y)
GLIBC_GENERATE_LOCALES = $(call qstrip,$(BR2_GENERATE_LOCALE))
ifneq ($(GLIBC_GENERATE_LOCALES),)
PACKAGES += host-localedef

define GENERATE_GLIBC_LOCALES
	$(MAKE) -f tools/support/misc/gen-glibc-locales.mk \
		ENDIAN=$(call LOWERCASE,$(BR2_ENDIAN)) \
		LOCALES="$(GLIBC_GENERATE_LOCALES)" \
		Q=$(Q)
endef
TARGET_FINALIZE_HOOKS += GENERATE_GLIBC_LOCALES
endif
endif

ifeq ($(BR2_ENABLE_LOCALE_PURGE),y)
LOCALE_WHITELIST = $(BUILD_DIR)/locales.nopurge
LOCALE_NOPURGE = $(call qstrip,$(BR2_ENABLE_LOCALE_WHITELIST))

# This piece of junk does the following:
# First collect the whitelist in a file.
# Then go over all the locale dirs and for each subdir, check if it exists
# in the whitelist file. If it doesn't, kill it.
# Finally, specifically for X11, regenerate locale.dir from the whitelist.
define PURGE_LOCALES
	$(Q)printf '%s\n' $(LOCALE_NOPURGE) locale-archive > $(LOCALE_WHITELIST)

	$(Q)for dir in $(addprefix $(TARGET_DIR),/usr/share/locale /usr/share/X11/locale /usr/lib/locale); \
	do \
		if [ ! -d $$dir ]; then continue; fi; \
		for langdir in $$dir/*; \
		do \
			if [ -e "$${langdir}" ]; \
			then \
				grep -qx "$${langdir##*/}" $(LOCALE_WHITELIST) || rm -rf $$langdir; \
			fi \
		done; \
	done
	$(Q)if [ -d $(TARGET_DIR)/usr/share/X11/locale ]; \
	then \
		for lang in $(LOCALE_NOPURGE); \
		do \
			if [ -f $(TARGET_DIR)/usr/share/X11/locale/$$lang/XLC_LOCALE ]; \
			then \
				echo "$$lang/XLC_LOCALE: $$lang"; \
			fi \
		done > $(TARGET_DIR)/usr/share/X11/locale/locale.dir; \
	fi
endef
TARGET_FINALIZE_HOOKS += PURGE_LOCALES
endif

$(TARGETS_ROOTFS): target-finalize

$(TARGETS_USERFS): target-finalize

# Avoid the rootfs name leaking down the dependency chain
target-finalize: ROOTFS=

.PHONY: host-finalize
host-finalize: $(PACKAGES) $(HOST_DIR) $(HOST_DIR_SYMLINK)
	@$(call MESSAGE,"Finalizing host directory")

.PHONY: staging-finalize
staging-finalize: $(STAGING_DIR_SYMLINK)

.PHONY: target-finalize
target-finalize: $(PACKAGES) $(TARGET_DIR) host-finalize
	@$(call MESSAGE,"Finalizing target directory")
	$(call per-package-rsync,$(sort $(PACKAGES)),target,$(TARGET_DIR))
	$(foreach hook,$(TARGET_FINALIZE_HOOKS),$($(hook))$(sep))
	$(Q)rm -rf $(TARGET_DIR)/usr/include $(TARGET_DIR)/usr/share/aclocal \
		$(TARGET_DIR)/usr/lib/pkgconfig $(TARGET_DIR)/usr/share/pkgconfig \
		$(TARGET_DIR)/usr/lib/cmake $(TARGET_DIR)/usr/share/cmake \
		$(TARGET_DIR)/usr/doc
	$(Q)find $(TARGET_DIR)/usr/{lib,share}/ -name '*.cmake' -print0 | xargs -0 rm -f
	$(Q)find $(TARGET_DIR)/lib/ $(TARGET_DIR)/usr/lib/ $(TARGET_DIR)/usr/libexec/ \
		\( -name '*.a' -o -name '*.la' -o -name '*.prl' \) -print0 | xargs -0 rm -f
ifneq ($(BR2_PACKAGE_GDB),y)
	$(Q)rm -rf $(TARGET_DIR)/usr/share/gdb
endif
ifneq ($(BR2_PACKAGE_BASH),y)
	$(Q)rm -rf $(TARGET_DIR)/usr/share/bash-completion
	$(Q)rm -rf $(TARGET_DIR)/etc/bash_completion.d
endif
ifneq ($(BR2_PACKAGE_ZSH),y)
	$(Q)rm -rf $(TARGET_DIR)/usr/share/zsh
endif
	$(Q)rm -rf $(TARGET_DIR)/usr/man $(TARGET_DIR)/usr/share/man
	$(Q)rm -rf $(TARGET_DIR)/usr/info $(TARGET_DIR)/usr/share/info
	$(Q)rm -rf $(TARGET_DIR)/usr/doc $(TARGET_DIR)/usr/share/doc
	$(Q)rm -rf $(TARGET_DIR)/usr/share/gtk-doc
	$(Q)rmdir $(TARGET_DIR)/usr/share 2>/dev/null || true
ifneq ($(BR2_ENABLE_DEBUG):$(BR2_STRIP_strip),y:)
	$(Q)rm -rf $(TARGET_DIR)/lib/debug $(TARGET_DIR)/usr/lib/debug
endif
	$(STRIP_FIND_CMD) | xargs -0 -I {} sh -c ' \
		if file {} | grep -q "not stripped"; then \
			@echo "Stripping {}"; \
			$(STRIPCMD) {}; \
		else \
			@echo "Skipping {} (already stripped)"; \
			fi' 2>/dev/null || true
	$(STRIP_FIND_SPECIAL_LIBS_CMD) | xargs -0 -I {} sh -c ' \
		if file {} | grep -q "not stripped"; then \
			@echo "Stripping special library {}"; \
			$(STRIPCMD) $(STRIP_STRIP_DEBUG) {}; \
		else \
			@echo "Skipping special libary {} (already stripped)"; \
		fi' 2>/dev/null || true

	$(Q)test -f $(TARGET_DIR)/etc/ld.so.conf && \
		{ echo "ERROR: we shouldn't have a /etc/ld.so.conf file"; exit 1; } || true
	$(Q)test -d $(TARGET_DIR)/etc/ld.so.conf.d && \
		{ echo "ERROR: we shouldn't have a /etc/ld.so.conf.d directory"; exit 1; } || true
	$(Q)mkdir -p $(TARGET_DIR)/etc
	( \
		echo "NAME=ArtInChip Luban"; \
		echo "VERSION=$(BR2_VERSION_FULL)"; \
		echo "ID=Luban"; \
		echo "VERSION_ID=$(BR2_VERSION)"; \
		echo "PRETTY_NAME=\"Luban $(BR2_VERSION)\"" \
	) >  $(TARGET_DIR)/usr/lib/os-release
	$(Q)ln -sf ../usr/lib/os-release $(TARGET_DIR)/etc

	@$(call MESSAGE,"Sanitizing RPATH in target tree")
	$(Q)PER_PACKAGE_DIR=$(PER_PACKAGE_DIR) $(TOPDIR)/tools/support/scripts/fix-rpath target

# For a merged /usr, ensure that /lib, /bin and /sbin and their /usr
# counterparts are appropriately setup as symlinks ones to the others.
ifeq ($(BR2_ROOTFS_MERGED_USR),y)

	$(foreach d, $(call qstrip,$(BR2_ROOTFS_OVERLAY)), \
		@$(call MESSAGE,"Sanity check in overlay $(d)")$(sep) \
		$(Q)not_merged_dirs="$$(tools/support/scripts/check-merged-usr.sh $(d))"; \
		test -n "$$not_merged_dirs" && { \
			echo "ERROR: The overlay in $(d) is not" \
				"using a merged /usr for the following directories:" \
				$$not_merged_dirs; \
			exit 1; \
		} || true$(sep))

endif # merged /usr

	$(foreach d, $(call qstrip,$(BR2_ROOTFS_OVERLAY)), \
		@$(call MESSAGE,"Copying rootfs overlay $(d)")$(sep) \
		$(Q)$(call SYSTEM_RSYNC,$(d),$(TARGET_DIR))$(sep))

	$(Q)$(if $(TARGET_DIR_FILES_LISTS), \
		cat $(TARGET_DIR_FILES_LISTS)) > $(BUILD_DIR)/packages-file-list.txt
	$(Q)$(if $(HOST_DIR_FILES_LISTS), \
		cat $(HOST_DIR_FILES_LISTS)) > $(BUILD_DIR)/packages-file-list-host.txt
	$(Q)$(if $(STAGING_DIR_FILES_LISTS), \
		cat $(STAGING_DIR_FILES_LISTS)) > $(BUILD_DIR)/packages-file-list-staging.txt

	$(foreach s, $(call qstrip,$(BR2_ROOTFS_POST_BUILD_SCRIPT)), \
		@$(call MESSAGE,"Executing post-build script $(s)")$(sep) \
		$(Q)$(EXTRA_ENV) $(s) $(TARGET_DIR) $(call qstrip,$(BR2_ROOTFS_POST_SCRIPT_ARGS))$(sep))

	$(Q)touch $(TARGET_DIR)/usr

	$(Q)$(if $(BR2_TARGET_INSTALL_ETC_CONFIG), \
		cp $(BR2_CONFIG) $(TARGET_DIR)/etc/config/luban_sdk.config)

RUN_POST_IMAGE_SCRIPT=\
	$(foreach s, $(call qstrip,$(BR2_ROOTFS_POST_IMAGE_SCRIPT)), \
		$(call MESSAGE,"Executing post-image script $(s)"); \
		$(EXTRA_ENV) $(s) $(BINARIES_DIR) $(call qstrip,$(BR2_ROOTFS_POST_SCRIPT_ARGS))$(sep))

.PHONY: target-post-image
target-post-image: $(TARGETS_ROOTFS) $(TARGETS_USERFS) target-finalize staging-finalize
	@rm -f $(ROOTFS_COMMON_TAR)
	$(Q)mkdir -p $(BINARIES_DIR)
	@$(RUN_POST_IMAGE_SCRIPT)

# make image command not generate rootfs, run post-image.sh only.
image:
	$(Q)mkdir -p $(BINARIES_DIR)
	@$(RUN_POST_IMAGE_SCRIPT)

.PHONY: source
source: $(foreach p,$(PACKAGES),$(p)-all-source)

.PHONY: clean-source
clean-source: $(foreach p,$(PACKAGES),$(HIDDEN_PREFIX)-$(p)-srcclean)

.PHONY: show-targets
show-targets:
	@echo $(sort $(PACKAGES)) $(sort $(TARGETS_ROOTFS)) $(sort $(TARGETS_USERFS))

.PHONY: show-all-packages
show-all-packages:
	@echo $(sort $(PACKAGES_ALL))

.PHONY: $(HIDDEN_PREFIX)-pkg_clean
$(HIDDEN_PREFIX)-pkg_clean: $(foreach p,$(sort $(PACKAGES_BUILD)),$(p)-clean)

.PHONY: $(HIDDEN_PREFIX)-pkg_distclean
$(HIDDEN_PREFIX)-pkg_distclean: $(foreach p,$(sort $(PACKAGES_BUILD)),$(p)-distclean)

else # ifeq ($(BR2_HAVE_DOT_CONFIG),y)
# Dummy target to suppress error message
.PHONY: $(HIDDEN_PREFIX)-pkg_clean
$(HIDDEN_PREFIX)-pkg_clean:

# Dummy target to suppress error message
.PHONY: $(HIDDEN_PREFIX)-pkg_distclean
$(HIDDEN_PREFIX)-pkg_distclean:

# Some subdirectories are also package names. To avoid that "make linux"
# on an unconfigured tree produces "Nothing to be done", add an explicit
# rule for it.
# Also for 'all' we error out and ask the user to configure first.
.PHONY: linux toolchain
linux toolchain all: outputmakefile
	@$(call STANDOUT_MESSAGE,NO DEFCONFIG FOR PROJECT IS APPLIED!)
	@echo ''
	@echo 'Please  "make list" to get the defconfig list'
	@echo 'then    "make <board>_defconfig" to apply one'
	@echo 'finally "make all" to build image'
	@echo ''
	@echo '"make help" to get more information'
	@exit 1

endif # ifeq ($(BR2_HAVE_DOT_CONFIG),y)


# configuration
# ---------------------------------------------------------------------------

HOSTCFLAGS = $(CFLAGS_FOR_BUILD)
export HOSTCFLAGS

$(BUILD_DIR)/luban-config/%onf:
	$(Q)mkdir -p $(@D)/lxdialog
	$(Q)PKG_CONFIG_PATH="$(HOST_PKG_CONFIG_PATH)" $(MAKE) -s CC="$(HOSTCC_NOCCACHE)" HOSTCC="$(HOSTCC_NOCCACHE)" \
	    obj=$(@D) -C $(CONFIG) -f Makefile.br $(@F)

DEFCONFIG = $(call qstrip,$(BR2_DEFCONFIG))


# We don't want to fully expand BR2_DEFCONFIG here, so Kconfig will
# recognize that if it's still at its default $(CONFIG_DIR)/defconfig
COMMON_CONFIG_ENV = \
	BR2_DEFCONFIG='$(call qstrip,$(value BR2_DEFCONFIG))' \
	KCONFIG_AUTOCONFIG=$(BUILD_DIR)/luban-config/auto.conf \
	KCONFIG_AUTOHEADER=$(BUILD_DIR)/luban-config/autoconf.h \
	KCONFIG_TRISTATE=$(BUILD_DIR)/luban-config/tristate.config \
	BR2_CONFIG=$(BR2_CONFIG) \
	HOST_GCC_VERSION="$(HOSTCC_VERSION)" \
	BASE_DIR=$(BASE_DIR)


do_menuconfig: $(BUILD_DIR)/luban-config/mconf outputmakefile
	@$(COMMON_CONFIG_ENV) $< $(CONFIG_CONFIG_IN)

# For the config targets that automatically select options, we pass
# SKIP_LEGACY=y to disable the legacy options. However, in that case
# no values are set for the legacy options so a subsequent oldconfig
# will query them. Therefore, run an additional olddefconfig.

randconfig allyesconfig alldefconfig allnoconfig: $(BUILD_DIR)/luban-config/conf outputmakefile
	@$(COMMON_CONFIG_ENV) SKIP_LEGACY=y $< --$@ $(CONFIG_CONFIG_IN)
	@$(COMMON_CONFIG_ENV) $< --olddefconfig $(CONFIG_CONFIG_IN) >/dev/null

randpackageconfig allyespackageconfig allnopackageconfig: $(BUILD_DIR)/luban-config/conf outputmakefile
	@grep -v BR2_PACKAGE_ $(BR2_CONFIG) > $(CONFIG_DIR)/.config.nopkg
	@$(COMMON_CONFIG_ENV) SKIP_LEGACY=y \
		KCONFIG_ALLCONFIG=$(CONFIG_DIR)/.config.nopkg \
		$< --$(subst package,,$@) $(CONFIG_CONFIG_IN)
	@rm -f $(CONFIG_DIR)/.config.nopkg
	@$(COMMON_CONFIG_ENV) $< --olddefconfig $(CONFIG_CONFIG_IN) >/dev/null

oldconfig syncconfig olddefconfig: $(BUILD_DIR)/luban-config/conf outputmakefile
	@$(COMMON_CONFIG_ENV) $< --$@ $(CONFIG_CONFIG_IN)

defconfig: $(BUILD_DIR)/luban-config/conf outputmakefile
	@$(COMMON_CONFIG_ENV) $< --defconfig$(if $(DEFCONFIG),=$(DEFCONFIG)) $(CONFIG_CONFIG_IN)

check_defconfig_change= \
	@if [ -f $(O)/.defconfig_file ]; then \
		if [ "`cat $(O)/.defconfig_file`" != "$(1)" ]; then \
			echo ; \
			echo "WARNING: defconfig sanity check failed:"; \
			echo ; \
			echo "Previous defconfig: `cat $(O)/.defconfig_file`"; \
			echo "New defconfig: $(1)"; \
			echo "You are applying a different defconfig to an exist project, it may cause unpredictable error."; \
			echo " 1. You can 'make distclean' to clean the project, then make again."; \
			echo " 2. Or you can use 'make O=<build directory> <defconfig>' to build it in another directory."; \
			echo ; \
			false; \
		fi; \
	fi

define percent_defconfig
# Override the BR2_DEFCONFIG from COMMON_CONFIG_ENV with the new defconfig
%_defconfig: external-update $(BUILD_DIR)/luban-config/conf $(1)/target/configs/%_defconfig outputmakefile
	$(call check_defconfig_change,$(1)/target/configs/$$@)
	@$$(COMMON_CONFIG_ENV) BR2_DEFCONFIG=$(1)/target/configs/$$@ \
		$(BUILD_DIR)/luban-config/conf --defconfig=$(1)/target/configs/$$@ $$(CONFIG_CONFIG_IN)
	@echo "$(1)/target/configs/$$@" >$(O)/.defconfig_file
	@echo "LUBAN_CURRENT_OUT=$(LUBAN_CURRENT_OUT)">$(CURDIR)/output/.current
ifeq ($(B),1)
	$(MAKE) O=$(O) all
endif
endef
$(eval $(foreach d,$(call reverse,$(TOPDIR) $(BR2_EXTERNAL_DIRS)),$(call percent_defconfig,$(d))$(sep)))

update-defconfig: savedefconfig

savedefconfig: $(BUILD_DIR)/luban-config/conf outputmakefile
	@$(COMMON_CONFIG_ENV) $< \
		--savedefconfig=$(CONFIG_DIR)/defconfig \
		$(CONFIG_CONFIG_IN)
	@$(SED) '/^BR2_DEFCONFIG=/d' $(CONFIG_DIR)/defconfig
	@if [ -f $(O)/.defconfig_file ]; then \
		cp -f $(CONFIG_DIR)/defconfig `cat $(O)/.defconfig_file`; \
		echo "`cat $(O)/.defconfig_file` is updated"; \
	fi

# generate br2-external files before apply new sdk defconfig
external-update:
	@$(TOPDIR)/tools/support/scripts/br2-external -d '$(BASE_DIR)' $(LUBAN_EXTERNAL)

.PHONY: defconfig savedefconfig update-defconfig external-update

################################################################################
#
# Cleanup and misc junk
#
################################################################################

# staging and target directories do NOT list these as
# dependencies anywhere else
$(BUILD_DIR) $(BASE_TARGET_DIR) $(HOST_DIR) $(BINARIES_DIR) $(LEGAL_INFO_DIR) $(REDIST_SOURCES_DIR_TARGET) $(REDIST_SOURCES_DIR_HOST) $(PER_PACKAGE_DIR):
	@mkdir -p $@

# outputmakefile generates a Makefile in the output directory, if using a
# separate output directory. This allows convenient use of make in the
# output directory.
.PHONY: outputmakefile
outputmakefile:
ifeq ($(NEED_WRAPPER),y)
	$(Q)$(TOPDIR)/tools/support/scripts/mkmakefile $(TOPDIR) $(O)
endif

# printvars prints all the variables currently defined in our
# Makefiles. Alternatively, if a non-empty VARS variable is passed,
# only the variables matching the make pattern passed in VARS are
# displayed.
# show-vars does the same, but as a JSON dictionnary.
.PHONY: printvars
printvars:
	@:
	$(foreach V, \
		$(sort $(filter $(VARS),$(.VARIABLES))), \
		$(if $(filter-out environment% default automatic, \
				$(origin $V)), \
		$(if $(QUOTED_VARS),\
			$(info $V='$(subst ','\'',$(if $(RAW_VARS),$(value $V),$($V)))'), \
			$(info $V=$(if $(RAW_VARS),$(value $V),$($V))))))
# ')))) # Syntax colouring...

.PHONY: show-vars
show-vars: VARS?=%
show-vars:
	@:
	$(info $(call clean-json, { \
			$(foreach V, \
				$(sort $(filter $(VARS),$(.VARIABLES))), \
				$(if $(filter-out environment% default automatic, $(origin $V)), \
					"$V": { \
						"expanded": $(call mk-json-str,$($V))$(comma) \
						"raw": $(call mk-json-str,$(value $V)) \
					}$(comma) \
				) \
			) \
	} ))

.PHONY: $(HIDDEN_PREFIX)-clean
$(HIDDEN_PREFIX)-clean: $(HIDDEN_PREFIX)-pkg_clean
	$(Q)rm -rf $(BASE_TARGET_DIR) \
		$(BINARIES_DIR) \
		$(HOST_DIR) \
		$(BUILD_DIR) \
		$(BASE_DIR)/staging

.PHONY: $(HIDDEN_PREFIX)-distclean
$(HIDDEN_PREFIX)-distclean: $(HIDDEN_PREFIX)-pkg_distclean
	$(Q)rm -rf $(BASE_TARGET_DIR) \
		$(BINARIES_DIR) \
		$(HOST_DIR) \
		$(BUILD_DIR) \
		$(BASE_DIR)/staging
ifeq ($(O),$(CURDIR)/output)
	$(Q)rm -rf $(O)
endif
	$(Q)rm -rf $(BR2_CONFIG) \
		$(CONFIG_DIR)/.defconfig_file \
		$(CONFIG_DIR)/.config.old \
		$(CONFIG_DIR)/..config.tmp \
		$(CONFIG_DIR)/.auto.deps

.PHONY: help-full
help-full:
	@echo 'Cleaning:'
	@echo '  clean                  - delete all files created by build'
	@echo '  clean-source           - delete all source files created by build'
	@echo '  distclean              - delete all non-source files (including .config)'
	@echo
	@echo 'Build:'
	@echo '  all                    - make world'
	@echo
	@echo 'Configuration:'
	@echo '  menuconfig             - interactive curses-based configurator'
	@echo '  savedefconfig          - Save current config to BR2_DEFCONFIG (minimal config)'
	@echo
	@echo 'Package-specific:'
	@echo '  <pkg>                  - Build and install <pkg> and all its dependencies'
	@echo '  <pkg>-source           - Only download the source files for <pkg>'
	@echo '  <pkg>-extract          - Extract <pkg> sources'
	@echo '  <pkg>-srcclean         - Remove extracted source files for <pkg>'
	@echo '  <pkg>-patch            - Apply patches to <pkg>'
	@echo '  <pkg>-depends          - Build <pkg>'\''s dependencies'
	@echo '  <pkg>-configure        - Build <pkg> up to the configure step'
	@echo '  <pkg>-build            - Build <pkg> up to the build step'
	@echo '  <pkg>-show-info        - generate info about <pkg>, as a JSON blurb'
	@echo '  <pkg>-show-depends     - List packages on which <pkg> depends'
	@echo '  <pkg>-show-rdepends    - List packages which have <pkg> as a dependency'
	@echo '  <pkg>-show-recursive-depends'
	@echo '                         - Recursively list packages on which <pkg> depends'
	@echo '  <pkg>-show-recursive-rdepends'
	@echo '                         - Recursively list packages which have <pkg> as a dependency'
	@echo '  <pkg>-clean         - Remove <pkg> build directory'
	@echo '  <pkg>-reconfigure      - Restart the build from the configure step'
	@echo '  <pkg>-rebuild          - Restart the build from the build step'
	@echo '  <pkg>-reinstall        - Restart the build from the install step'
	$(foreach p,$(HELP_PACKAGES), \
		@echo $(sep) \
		@echo '$($(p)_NAME):' $(sep) \
		$($(p)_HELP_CMDS)$(sep))
	@echo
	@echo 'Miscellaneous:'
	@echo '  source                 - download all sources needed for offline-build'
	@echo '  external-deps          - list external packages used'
	@echo '  show-info              - generate info about packages, as a JSON blurb'
	@echo '  printvars              - dump internal variables selected with VARS=...'
	@echo '  show-vars              - dump all internal variables as a JSON blurb; use VARS=...'
	@echo '                           to limit the list to variables names matching that pattern'
	@echo
	@echo '  make V=0|1             - 0 => quiet build (default), 1 => verbose build'
	@echo '  make O=dir             - Locate all output files in "dir", including .config'
	@echo

# List the defconfig files
# $(1): base directory
# $(2): br2-external name, empty for bundled
define list-defconfigs
	@first=true; \
	for defconfig in $(1)/target/configs/*_defconfig; do \
		[ -f "$${defconfig}" ] || continue; \
		if $${first}; then \
			if [ "$(2)" ]; then \
				printf 'External configs in "$(call qstrip,$(2))":\n'; \
			else \
				printf "Built-in configs:\n"; \
			fi; \
			first=false; \
		fi; \
		defconfig="$${defconfig##*/}"; \
		printf "  %-35s - Build for %s\n" "$${defconfig}" "$${defconfig%_defconfig}"; \
	done; \
	$${first} || printf "\n"
endef

# We iterate over BR2_EXTERNAL_NAMES rather than BR2_EXTERNAL_DIRS,
# because we want to display the name of the br2-external tree.
.PHONY: list-defconfigs
list-defconfigs:
	$(call list-defconfigs,$(TOPDIR))
	$(foreach name,$(BR2_EXTERNAL_NAMES),\
		$(call list-defconfigs,$(BR2_EXTERNAL_$(name)_PATH),\
			$(BR2_EXTERNAL_$(name)_DESC))$(sep))

print-version:
	@echo $(BR2_VERSION_FULL)

check-flake8:
	$(Q)git ls-tree -r --name-only HEAD \
	| xargs file \
	| grep 'Python script' \
	| cut -d':' -f1 \
	| xargs -- python3 -m flake8 --statistics

check-package:
	find $(TOPDIR) -type f \( -name '*.mk' -o -name '*.hash' -o -name 'Config.*' -o -name '*.patch' \) \
		-exec ./utils/check-package --exclude=Sob {} +

.PHONY: $(noconfig_targets)