initial buildroot for linux 5.15

package/uclibc/Config.in

@@ -0,0 +1,155 @@
+if BR2_TOOLCHAIN_BUILDROOT_UCLIBC
+
+comment "uClibc Options"
+
+config BR2_PACKAGE_UCLIBC
+	bool
+	default y
+	select BR2_PACKAGE_LINUX_HEADERS
+
+config BR2_UCLIBC_CONFIG
+	string "uClibc configuration file to use?"
+	default "package/uclibc/uClibc-ng.config"
+	help
+	  Some people may wish to use their own modified uClibc
+	  configuration file and will specify their config file
+	  location with this option.  See also docs/README in this
+	  package.  If unsure, use the default.
+
+config BR2_UCLIBC_CONFIG_FRAGMENT_FILES
+	string "Additional uClibc configuration fragment files"
+	help
+	  A space-separated list of configuration fragment files, that
+	  will be merged to the main uClibc configuration file.
+
+config BR2_TOOLCHAIN_BUILDROOT_WCHAR
+	bool "Enable WCHAR support"
+	select BR2_USE_WCHAR
+	help
+	  Enable this option if you want your toolchain to support
+	  wide characters (i.e characters longer than 8 bits, needed
+	  for locale support).
+
+config BR2_TOOLCHAIN_BUILDROOT_LOCALE
+	bool "Enable toolchain locale/i18n support"
+	select BR2_TOOLCHAIN_BUILDROOT_WCHAR
+	select BR2_ENABLE_LOCALE
+	select BR2_NEEDS_HOST_UTF8_LOCALE
+	help
+	  Enable this option if you want your toolchain to support
+	  localization and internationalization.
+
+choice
+	prompt "Thread library implementation"
+	help
+	  Use this option to select the thread library implementation
+	  that should be used in your toolchain.
+
+config BR2_PTHREADS_NATIVE
+	bool "Native POSIX Threading (NPTL)"
+	depends on BR2_USE_MMU
+	select BR2_TOOLCHAIN_HAS_THREADS
+	select BR2_TOOLCHAIN_HAS_THREADS_NPTL
+
+config BR2_PTHREADS
+	bool "linuxthreads"
+	depends on !BR2_aarch64 && !BR2_aarch64_be
+	depends on !BR2_RISCV_64
+	select BR2_TOOLCHAIN_HAS_THREADS
+
+config BR2_PTHREADS_NONE
+	bool "none"
+
+endchoice
+
+config BR2_PTHREAD_DEBUG
+	bool "Thread library debugging"
+	depends on BR2_PTHREADS || BR2_PTHREADS_NATIVE
+	select BR2_TOOLCHAIN_HAS_THREADS_DEBUG
+	help
+	  Build the thread library with debugging enabled.
+
+config BR2_TOOLCHAIN_BUILDROOT_USE_SSP
+	bool "Enable stack protection support"
+	depends on BR2_PACKAGE_HOST_BINUTILS_SUPPORTS_CFI
+	select BR2_TOOLCHAIN_HAS_SSP
+	help
+	  Enable stack smashing protection support using GCCs
+	  -fstack-protector-all option in uClibc.
+
+	  See
+	  http://www.linuxfromscratch.org/hints/downloads/files/ssp.txt
+	  for details.
+
+config BR2_UCLIBC_INSTALL_UTILS
+	bool "Compile and install uClibc utilities"
+	default y
+	help
+	  Enabling this option will compile and install the getconf,
+	  ldconfig and ldd uClibc utilities for the target.
+
+	  You can save ~32 KiB in target space by disabling them since
+	  they're normally not needed.
+
+# Mapping from the Buildroot architecture configuration options to the
+# uClibc architecture names.
+config BR2_UCLIBC_TARGET_ARCH
+	string
+	default "arc"	   if BR2_arcle || BR2_arceb
+	default "arm"	   if BR2_arm	|| BR2_armeb
+	default "m68k"	   if BR2_m68k
+	default "microblaze"   if BR2_microblaze
+	default "mips"	   if BR2_mips || BR2_mipsel || BR2_mips64 || BR2_mips64el
+	default "or1k"     if BR2_or1k
+	default "powerpc"  if BR2_powerpc
+	default "sh"	   if BR2_sh
+	default "sparc"	   if BR2_sparc
+	default "xtensa"   if BR2_xtensa
+	default "i386"	   if BR2_i386
+	default "x86_64"   if BR2_x86_64
+	default "riscv64"  if BR2_RISCV_64
+
+config BR2_UCLIBC_MIPS_ABI
+	string
+	default "O32" if BR2_MIPS_OABI32
+	default "N32" if BR2_MIPS_NABI32
+	default "N64" if BR2_MIPS_NABI64
+	depends on BR2_UCLIBC_TARGET_ARCH = "mips"
+
+config BR2_UCLIBC_MIPS_NAN
+	string
+	default "LEGACY" if BR2_MIPS_NAN_LEGACY
+	default "2008" if BR2_MIPS_NAN_2008
+	depends on BR2_UCLIBC_TARGET_ARCH = "mips"
+
+config BR2_UCLIBC_SH_TYPE
+	string
+	default "SH2A" if BR2_sh2a
+	default "SH4"  if BR2_sh4 || BR2_sh4eb
+	depends on BR2_UCLIBC_TARGET_ARCH = "sh"
+
+config BR2_UCLIBC_SPARC_TYPE
+	string
+	default "V7"	if BR2_sparc_v7 || BR2_sparc_sparchfleon || BR2_sparc_sparcsfleon
+	default "V8"	if BR2_sparc_v8 || BR2_sparc_sparchfleonv8 || BR2_sparc_sparcsfleonv8
+	depends on BR2_UCLIBC_TARGET_ARCH = "sparc"
+
+config BR2_UCLIBC_POWERPC_TYPE
+	string
+	default "CLASSIC" if !BR2_powerpc_8540 && !BR2_powerpc_8548
+	default "E500"    if BR2_powerpc_8540 || BR2_powerpc_8548
+	depends on BR2_UCLIBC_TARGET_ARCH = "powerpc"
+
+config BR2_UCLIBC_X86_TYPE
+	string
+	default "486"        if BR2_x86_i486
+	default "586"        if BR2_x86_i586
+	default "586MMX"     if BR2_x86_pentium_mmx
+	default "686"	     if BR2_x86_i686 || BR2_x86_pentiumpro
+	default "PENTIUMII"  if BR2_x86_pentium2
+	default "PENTIUMIII" if BR2_x86_pentium3
+	default "PENTIUM4"   if BR2_x86_pentium4 || BR2_x86_pentium_m || \
+	                        BR2_x86_nocona || BR2_x86_core2 || BR2_x86_corei7
+	depends on BR2_UCLIBC_TARGET_ARCH = "i386"
+
+endif # BR2_TOOLCHAIN_BUILDROOT_UCLIBC

package/uclibc/uClibc-ng.config

@@ -0,0 +1,42 @@
+DO_C99_MATH=y
+DO_XSI_MATH=y
+KERNEL_HEADERS="/usr/src/linux/include"
+# LDSO_CACHE_SUPPORT is not set
+# UCLIBC_STATIC_LDCONFIG is not set
+LDSO_RUNPATH=y
+LDSO_RUNPATH_OF_EXECUTABLE=y
+UCLIBC_HAS_UTMPX=y
+UCLIBC_HAS_UTMP=y
+UCLIBC_SUSV2_LEGACY=y
+UCLIBC_SUSV3_LEGACY=y
+UCLIBC_HAS_CONTEXT_FUNCS=y
+UCLIBC_SUSV4_LEGACY=y
+UCLIBC_HAS_PROGRAM_INVOCATION_NAME=y
+UCLIBC_HAS_GETPT=y
+UCLIBC_HAS_LIBUTIL=y
+UCLIBC_HAS_OBSOLETE_BSD_SIGNAL=y
+UCLIBC_HAS_SHA256_CRYPT_IMPL=y
+UCLIBC_HAS_SHA512_CRYPT_IMPL=y
+UCLIBC_USE_NETLINK=y
+UCLIBC_SUPPORT_AI_ADDRCONFIG=y
+UCLIBC_HAS_RESOLVER_SUPPORT=y
+UCLIBC_HAS_LIBRESOLV_STUB=y
+UCLIBC_HAS_LIBNSL_STUB=y
+UCLIBC_HAS_CTYPE_CHECKED=y
+UCLIBC_HAS_LIBINTL=y
+UCLIBC_HAS_HEXADECIMAL_FLOATS=y
+UCLIBC_HAS_GLIBC_CUSTOM_PRINTF=y
+UCLIBC_HAS_STDIO_GETC_MACRO=y
+UCLIBC_HAS_STDIO_PUTC_MACRO=y
+UCLIBC_HAS_FOPEN_EXCLUSIVE_MODE=y
+UCLIBC_HAS_GLIBC_CUSTOM_STREAMS=y
+UCLIBC_HAS_PRINTF_M_SPEC=y
+UCLIBC_HAS_WORDEXP=y
+UCLIBC_HAS_NFTW=y
+UCLIBC_HAS_FTW=y
+UCLIBC_HAS_GNU_GLOB=y
+RUNTIME_PREFIX="/"
+DEVEL_PREFIX="/usr/"
+UCLIBC_HAS_SSP=y
+UCLIBC_BUILD_NOW=y
+# DOSTRIP is not set

package/uclibc/uclibc.hash

@@ -0,0 +1,4 @@
+# From https://downloads.uclibc-ng.org/releases/1.0.38/uClibc-ng-1.0.39.tar.xz.sha256
+sha256  cb089dfe14867a38f222d6428e85d0e1191dcbb66dd9b1a671484f6bc7c81920  uClibc-ng-1.0.39.tar.xz
+# Locally calculated
+sha256  6095e9ffa777dd22839f7801aa845b31c9ed07f3d6bf8a26dc5d2dec8ccc0ef3  COPYING.LIB

package/uclibc/uclibc.mk

@@ -0,0 +1,461 @@
+################################################################################
+#
+# uclibc
+#
+################################################################################
+
+UCLIBC_VERSION = 1.0.39
+UCLIBC_SOURCE = uClibc-ng-$(UCLIBC_VERSION).tar.xz
+UCLIBC_SITE = https://downloads.uclibc-ng.org/releases/$(UCLIBC_VERSION)
+UCLIBC_LICENSE = LGPL-2.1+
+UCLIBC_LICENSE_FILES = COPYING.LIB
+UCLIBC_INSTALL_STAGING = YES
+UCLIBC_CPE_ID_VENDOR = uclibc-ng_project
+UCLIBC_CPE_ID_PRODUCT = uclibc-ng
+
+# uclibc is part of the toolchain so disable the toolchain dependency
+UCLIBC_ADD_TOOLCHAIN_DEPENDENCY = NO
+
+# Before uClibc is configured, we must have the first stage
+# cross-compiler and the kernel headers
+UCLIBC_DEPENDENCIES = host-gcc-initial linux-headers
+
+# specifying UCLIBC_CONFIG_FILE on the command-line overrides the .config
+# setting.
+ifndef UCLIBC_CONFIG_FILE
+UCLIBC_CONFIG_FILE = $(call qstrip,$(BR2_UCLIBC_CONFIG))
+endif
+
+UCLIBC_KCONFIG_EDITORS = menuconfig nconfig
+UCLIBC_KCONFIG_FILE = $(UCLIBC_CONFIG_FILE)
+UCLIBC_KCONFIG_FRAGMENT_FILES = $(call qstrip,$(BR2_UCLIBC_CONFIG_FRAGMENT_FILES))
+
+# UCLIBC_MAKE_FLAGS set HOSTCC to the default HOSTCC, which may be
+# wrapped with ccache. However, host-ccache may not already be built
+# and installed when we apply the configuration, so we override that
+# to use the non-ccached host compiler.
+UCLIBC_KCONFIG_OPTS = \
+	$(UCLIBC_MAKE_FLAGS) \
+	HOSTCC="$(HOSTCC_NOCCACHE)" \
+	PREFIX=$(STAGING_DIR) \
+	DEVEL_PREFIX=/usr/ \
+	RUNTIME_PREFIX=$(STAGING_DIR)/
+
+UCLIBC_TARGET_ARCH = $(call qstrip,$(BR2_UCLIBC_TARGET_ARCH))
+
+UCLIBC_GENERATE_LOCALES = $(call qstrip,$(BR2_GENERATE_LOCALE))
+
+ifeq ($(UCLIBC_GENERATE_LOCALES),)
+# We need at least one locale
+UCLIBC_LOCALES = en_US
+else
+# Strip out the encoding part of locale names, if any
+UCLIBC_LOCALES = \
+	$(foreach locale,$(UCLIBC_GENERATE_LOCALES),\
+	$(firstword $(subst .,$(space),$(locale))))
+endif
+
+# noMMU binary formats
+ifeq ($(BR2_BINFMT_FLAT_ONE),y)
+define UCLIBC_BINFMT_CONFIG
+	$(call KCONFIG_ENABLE_OPT,UCLIBC_FORMAT_FLAT)
+	$(call KCONFIG_DISABLE_OPT,UCLIBC_FORMAT_FLAT_SEP_DATA)
+	$(call KCONFIG_DISABLE_OPT,UCLIBC_FORMAT_SHARED_FLAT)
+	$(call KCONFIG_DISABLE_OPT,UCLIBC_FORMAT_FDPIC_ELF)
+endef
+endif
+ifeq ($(BR2_BINFMT_FLAT_SHARED),y)
+define UCLIBC_BINFMT_CONFIG
+	$(call KCONFIG_DISABLE_OPT,UCLIBC_FORMAT_FLAT)
+	$(call KCONFIG_DISABLE_OPT,UCLIBC_FORMAT_FLAT_SEP_DATA)
+	$(call KCONFIG_ENABLE_OPT,UCLIBC_FORMAT_SHARED_FLAT)
+	$(call KCONFIG_DISABLE_OPT,UCLIBC_FORMAT_FDPIC_ELF)
+endef
+endif
+
+#
+# ARC definitions
+#
+
+ifeq ($(UCLIBC_TARGET_ARCH),arc)
+UCLIBC_ARC_PAGE_SIZE = CONFIG_ARC_PAGE_SIZE_$(call qstrip,$(BR2_ARC_PAGE_SIZE))
+define UCLIBC_ARC_PAGE_SIZE_CONFIG
+	$(SED) '/CONFIG_ARC_PAGE_SIZE_*/d' $(@D)/.config
+	$(call KCONFIG_ENABLE_OPT,$(UCLIBC_ARC_PAGE_SIZE))
+endef
+
+ifeq ($(BR2_ARC_ATOMIC_EXT),)
+define UCLIBC_ARC_ATOMICS_CONFIG
+	$(call KCONFIG_DISABLE_OPT,CONFIG_ARC_HAS_ATOMICS)
+endef
+endif
+
+endif # arc
+
+#
+# ARM definitions
+#
+
+ifeq ($(UCLIBC_TARGET_ARCH),arm)
+define UCLIBC_ARM_ABI_CONFIG
+	$(SED) '/CONFIG_ARM_.ABI/d' $(@D)/.config
+	$(call KCONFIG_ENABLE_OPT,CONFIG_ARM_EABI)
+endef
+
+ifeq ($(BR2_BINFMT_FLAT),y)
+define UCLIBC_ARM_BINFMT_FLAT
+	$(call KCONFIG_DISABLE_OPT,DOPIC)
+endef
+endif
+
+# context functions are written with ARM instructions. Therefore, if
+# we are using a Thumb2-only platform (i.e, Cortex-M), they must be
+# disabled. Thumb1 platforms are not a problem, since they all also
+# support the ARM instructions.
+ifeq ($(BR2_ARM_INSTRUCTIONS_THUMB2):$(BR2_ARM_CPU_HAS_ARM),y:)
+define UCLIBC_ARM_NO_CONTEXT_FUNCS
+	$(call KCONFIG_DISABLE_OPT,UCLIBC_HAS_CONTEXT_FUNCS)
+endef
+endif
+
+endif # arm
+
+#
+# m68k/coldfire definitions
+#
+
+ifeq ($(UCLIBC_TARGET_ARCH),m68k)
+
+# disable DOPIC for flat without separate data
+ifeq ($(BR2_BINFMT_FLAT_ONE),y)
+define UCLIBC_M68K_BINFMT_FLAT
+	$(call KCONFIG_DISABLE_OPT,DOPIC)
+endef
+endif
+
+endif # m68k/coldfire
+
+#
+# MIPS definitions
+#
+
+ifeq ($(UCLIBC_TARGET_ARCH),mips)
+UCLIBC_MIPS_ABI = CONFIG_MIPS_$(call qstrip,$(BR2_UCLIBC_MIPS_ABI))_ABI
+define UCLIBC_MIPS_ABI_CONFIG
+	$(SED) '/CONFIG_MIPS_[NO].._ABI/d' $(@D)/.config
+	$(call KCONFIG_ENABLE_OPT,$(UCLIBC_MIPS_ABI))
+endef
+
+UCLIBC_MIPS_NAN = CONFIG_MIPS_NAN_$(call qstrip,$(BR2_UCLIBC_MIPS_NAN))
+define UCLIBC_MIPS_NAN_CONFIG
+	$(SED) '/CONFIG_MIPS_NAN_.*/d' $(@D)/.config
+	$(call KCONFIG_ENABLE_OPT,$(UCLIBC_MIPS_NAN))
+endef
+endif # mips
+
+#
+# SH definitions
+#
+
+ifeq ($(UCLIBC_TARGET_ARCH),sh)
+UCLIBC_SH_TYPE = CONFIG_$(call qstrip,$(BR2_UCLIBC_SH_TYPE))
+define UCLIBC_SH_TYPE_CONFIG
+	$(SED) '/CONFIG_SH[234A]*/d' $(@D)/.config
+	$(call KCONFIG_ENABLE_OPT,$(UCLIBC_SH_TYPE))
+endef
+endif # sh
+
+#
+# SPARC definitions
+#
+
+ifeq ($(UCLIBC_TARGET_ARCH),sparc)
+UCLIBC_SPARC_TYPE = CONFIG_SPARC_$(call qstrip,$(BR2_UCLIBC_SPARC_TYPE))
+define UCLIBC_SPARC_TYPE_CONFIG
+	$(SED) 's/^\(CONFIG_[^_]*[_]*SPARC[^=]*\)=.*/# \1 is not set/g' \
+		$(@D)/.config
+	$(call KCONFIG_ENABLE_OPT,$(UCLIBC_SPARC_TYPE))
+endef
+endif # sparc
+
+#
+# PowerPC definitions
+#
+
+ifeq ($(UCLIBC_TARGET_ARCH),powerpc)
+UCLIBC_POWERPC_TYPE = CONFIG_$(call qstrip,$(BR2_UCLIBC_POWERPC_TYPE))
+define UCLIBC_POWERPC_TYPE_CONFIG
+	$(call KCONFIG_DISABLE_OPT,CONFIG_GENERIC)
+	$(call KCONFIG_DISABLE_OPT,CONFIG_E500)
+	$(call KCONFIG_ENABLE_OPT,$(UCLIBC_POWERPC_TYPE))
+endef
+endif # powerpc
+
+#
+# x86 definitions
+#
+ifeq ($(UCLIBC_TARGET_ARCH),i386)
+UCLIBC_X86_TYPE = CONFIG_$(call qstrip,$(BR2_UCLIBC_X86_TYPE))
+define UCLIBC_X86_TYPE_CONFIG
+	$(call KCONFIG_ENABLE_OPT,$(UCLIBC_X86_TYPE))
+endef
+endif
+
+#
+# Debug
+#
+ifeq ($(BR2_ENABLE_DEBUG),y)
+define UCLIBC_DEBUG_CONFIG
+	$(call KCONFIG_ENABLE_OPT,DODEBUG)
+endef
+endif
+
+#
+# Endianness
+#
+
+ifeq ($(call qstrip,$(BR2_ENDIAN)),BIG)
+define UCLIBC_ENDIAN_CONFIG
+	$(call KCONFIG_ENABLE_OPT,ARCH_BIG_ENDIAN)
+	$(call KCONFIG_ENABLE_OPT,ARCH_WANTS_BIG_ENDIAN)
+	$(call KCONFIG_DISABLE_OPT,ARCH_LITTLE_ENDIAN)
+	$(call KCONFIG_DISABLE_OPT,ARCH_WANTS_LITTLE_ENDIAN)
+endef
+else
+define UCLIBC_ENDIAN_CONFIG
+	$(call KCONFIG_ENABLE_OPT,ARCH_LITTLE_ENDIAN)
+	$(call KCONFIG_ENABLE_OPT,ARCH_WANTS_LITTLE_ENDIAN)
+	$(call KCONFIG_DISABLE_OPT,ARCH_BIG_ENDIAN)
+	$(call KCONFIG_DISABLE_OPT,ARCH_WANTS_BIG_ENDIAN)
+endef
+endif
+
+#
+# MMU
+#
+
+ifeq ($(BR2_USE_MMU),y)
+define UCLIBC_MMU_CONFIG
+	$(call KCONFIG_ENABLE_OPT,ARCH_HAS_MMU)
+	$(call KCONFIG_ENABLE_OPT,ARCH_USE_MMU)
+endef
+else
+define UCLIBC_MMU_CONFIG
+	$(call KCONFIG_DISABLE_OPT,ARCH_HAS_MMU)
+	$(call KCONFIG_DISABLE_OPT,ARCH_USE_MMU)
+endef
+endif
+
+#
+# IPv6
+#
+
+UCLIBC_IPV6_CONFIG = $(call KCONFIG_ENABLE_OPT,UCLIBC_HAS_IPV6)
+
+#
+# soft-float
+#
+
+ifeq ($(BR2_SOFT_FLOAT),y)
+define UCLIBC_FLOAT_CONFIG
+	$(call KCONFIG_DISABLE_OPT,UCLIBC_HAS_FPU)
+	$(call KCONFIG_ENABLE_OPT,UCLIBC_HAS_FLOATS)
+	$(call KCONFIG_ENABLE_OPT,DO_C99_MATH)
+endef
+else
+define UCLIBC_FLOAT_CONFIG
+	$(call KCONFIG_ENABLE_OPT,UCLIBC_HAS_FPU)
+	$(call KCONFIG_ENABLE_OPT,UCLIBC_HAS_FLOATS)
+endef
+endif
+
+#
+# SSP
+#
+ifeq ($(BR2_TOOLCHAIN_BUILDROOT_USE_SSP),y)
+define UCLIBC_SSP_CONFIG
+	$(call KCONFIG_ENABLE_OPT,UCLIBC_HAS_SSP)
+	$(call KCONFIG_ENABLE_OPT,UCLIBC_BUILD_SSP)
+endef
+else
+define UCLIBC_SSP_CONFIG
+	$(call KCONFIG_DISABLE_OPT,UCLIBC_HAS_SSP)
+	$(call KCONFIG_DISABLE_OPT,UCLIBC_BUILD_SSP)
+endef
+endif
+
+#
+# Threads
+#
+ifeq ($(BR2_PTHREADS_NONE),y)
+define UCLIBC_THREAD_CONFIG
+	$(call KCONFIG_DISABLE_OPT,UCLIBC_HAS_THREADS)
+	$(call KCONFIG_DISABLE_OPT,UCLIBC_HAS_LINUXTHREADS)
+	$(call KCONFIG_DISABLE_OPT,UCLIBC_HAS_THREADS_NATIVE)
+endef
+else ifeq ($(BR2_PTHREADS),y)
+define UCLIBC_THREAD_CONFIG
+	$(call KCONFIG_ENABLE_OPT,UCLIBC_HAS_THREADS)
+	$(call KCONFIG_ENABLE_OPT,UCLIBC_HAS_LINUXTHREADS)
+	$(call KCONFIG_DISABLE_OPT,UCLIBC_HAS_THREADS_NATIVE)
+endef
+else ifeq ($(BR2_PTHREADS_NATIVE),y)
+define UCLIBC_THREAD_CONFIG
+	$(call KCONFIG_ENABLE_OPT,UCLIBC_HAS_THREADS)
+	$(call KCONFIG_DISABLE_OPT,UCLIBC_HAS_LINUXTHREADS)
+	$(call KCONFIG_ENABLE_OPT,UCLIBC_HAS_THREADS_NATIVE)
+endef
+endif
+
+#
+# Thread debug
+#
+
+ifeq ($(BR2_PTHREAD_DEBUG),y)
+UCLIBC_THREAD_DEBUG_CONFIG = $(call KCONFIG_ENABLE_OPT,PTHREADS_DEBUG_SUPPORT)
+else
+UCLIBC_THREAD_DEBUG_CONFIG = $(call KCONFIG_DISABLE_OPT,PTHREADS_DEBUG_SUPPORT)
+endif
+
+#
+# Locale
+#
+
+ifeq ($(BR2_TOOLCHAIN_BUILDROOT_LOCALE),y)
+define UCLIBC_LOCALE_CONFIG
+	$(call KCONFIG_ENABLE_OPT,UCLIBC_HAS_LOCALE)
+	$(call KCONFIG_DISABLE_OPT,UCLIBC_BUILD_ALL_LOCALE)
+	$(call KCONFIG_ENABLE_OPT,UCLIBC_BUILD_MINIMAL_LOCALE)
+	$(call KCONFIG_SET_OPT,UCLIBC_BUILD_MINIMAL_LOCALES,"$(UCLIBC_LOCALES)")
+	$(call KCONFIG_DISABLE_OPT,UCLIBC_PREGENERATED_LOCALE_DATA)
+	$(call KCONFIG_DISABLE_OPT,DOWNLOAD_PREGENERATED_LOCALE_DATA)
+	$(call KCONFIG_ENABLE_OPT,UCLIBC_HAS_XLOCALE)
+	$(call KCONFIG_DISABLE_OPT,UCLIBC_HAS_GLIBC_DIGIT_GROUPING)
+endef
+else
+define UCLIBC_LOCALE_CONFIG
+	$(call KCONFIG_DISABLE_OPT,UCLIBC_HAS_LOCALE)
+endef
+endif
+
+#
+# wchar
+#
+
+ifeq ($(BR2_TOOLCHAIN_BUILDROOT_WCHAR),y)
+UCLIBC_WCHAR_CONFIG = $(call KCONFIG_ENABLE_OPT,UCLIBC_HAS_WCHAR)
+else
+UCLIBC_WCHAR_CONFIG = $(call KCONFIG_DISABLE_OPT,UCLIBC_HAS_WCHAR)
+endif
+
+#
+# static/shared libs
+#
+
+ifeq ($(BR2_STATIC_LIBS),y)
+UCLIBC_SHARED_LIBS_CONFIG = $(call KCONFIG_DISABLE_OPT,HAVE_SHARED)
+else
+UCLIBC_SHARED_LIBS_CONFIG = $(call KCONFIG_ENABLE_OPT,HAVE_SHARED)
+endif
+
+#
+# Commands
+#
+
+UCLIBC_MAKE_FLAGS = \
+	ARCH="$(UCLIBC_TARGET_ARCH)" \
+	CROSS_COMPILE="$(TARGET_CROSS)" \
+	UCLIBC_EXTRA_CFLAGS="$(TARGET_ABI)" \
+	HOSTCC="$(HOSTCC)"
+
+define UCLIBC_KCONFIG_FIXUP_CMDS
+	$(call KCONFIG_SET_OPT,CROSS_COMPILER_PREFIX,"$(TARGET_CROSS)")
+	$(call KCONFIG_ENABLE_OPT,TARGET_$(UCLIBC_TARGET_ARCH))
+	$(call KCONFIG_SET_OPT,TARGET_ARCH,"$(UCLIBC_TARGET_ARCH)")
+	$(call KCONFIG_SET_OPT,KERNEL_HEADERS,"$(LINUX_HEADERS_DIR)/usr/include")
+	$(call KCONFIG_SET_OPT,RUNTIME_PREFIX,"/")
+	$(call KCONFIG_SET_OPT,DEVEL_PREFIX,"/usr")
+	$(call KCONFIG_SET_OPT,SHARED_LIB_LOADER_PREFIX,"/lib")
+	$(UCLIBC_MMU_CONFIG)
+	$(UCLIBC_BINFMT_CONFIG)
+	$(UCLIBC_ARC_PAGE_SIZE_CONFIG)
+	$(UCLIBC_ARC_ATOMICS_CONFIG)
+	$(UCLIBC_ARM_ABI_CONFIG)
+	$(UCLIBC_ARM_BINFMT_FLAT)
+	$(UCLIBC_ARM_NO_CONTEXT_FUNCS)
+	$(UCLIBC_M68K_BINFMT_FLAT)
+	$(UCLIBC_MIPS_ABI_CONFIG)
+	$(UCLIBC_MIPS_NAN_CONFIG)
+	$(UCLIBC_SH_TYPE_CONFIG)
+	$(UCLIBC_SPARC_TYPE_CONFIG)
+	$(UCLIBC_POWERPC_TYPE_CONFIG)
+	$(UCLIBC_X86_TYPE_CONFIG)
+	$(UCLIBC_DEBUG_CONFIG)
+	$(UCLIBC_ENDIAN_CONFIG)
+	$(UCLIBC_IPV6_CONFIG)
+	$(UCLIBC_FLOAT_CONFIG)
+	$(UCLIBC_SSP_CONFIG)
+	$(UCLIBC_THREAD_CONFIG)
+	$(UCLIBC_THREAD_DEBUG_CONFIG)
+	$(UCLIBC_LOCALE_CONFIG)
+	$(UCLIBC_WCHAR_CONFIG)
+	$(UCLIBC_SHARED_LIBS_CONFIG)
+endef
+
+define UCLIBC_BUILD_CMDS
+	$(MAKE) -C $(@D) $(UCLIBC_MAKE_FLAGS) headers
+	$(MAKE) -C $(@D) $(UCLIBC_MAKE_FLAGS)
+	$(MAKE) -C $(@D)/utils \
+		PREFIX=$(HOST_DIR) \
+		HOSTCC="$(HOSTCC)" hostutils
+endef
+
+ifeq ($(BR2_UCLIBC_INSTALL_UTILS),y)
+define UCLIBC_INSTALL_UTILS_TARGET
+	$(MAKE1) -C $(@D) \
+		CC="$(TARGET_CC)" CPP="$(TARGET_CPP)" LD="$(TARGET_LD)" \
+		ARCH="$(UCLIBC_TARGET_ARCH)" \
+		PREFIX=$(TARGET_DIR) \
+		utils install_utils
+endef
+endif
+
+define UCLIBC_INSTALL_TARGET_CMDS
+	$(MAKE1) -C $(@D) \
+		$(UCLIBC_MAKE_FLAGS) \
+		PREFIX=$(TARGET_DIR) \
+		DEVEL_PREFIX=/usr/ \
+		RUNTIME_PREFIX=/ \
+		install_runtime
+	$(UCLIBC_INSTALL_UTILS_TARGET)
+endef
+
+# STATIC has no ld* tools, only getconf
+ifeq ($(BR2_STATIC_LIBS),)
+define UCLIBC_INSTALL_UTILS_STAGING
+	$(INSTALL) -D -m 0755 $(@D)/utils/ldd.host $(HOST_DIR)/bin/ldd
+	ln -sf ldd $(HOST_DIR)/bin/$(GNU_TARGET_NAME)-ldd
+	$(INSTALL) -D -m 0755 $(@D)/utils/ldconfig.host $(HOST_DIR)/bin/ldconfig
+	ln -sf ldconfig $(HOST_DIR)/bin/$(GNU_TARGET_NAME)-ldconfig
+endef
+endif
+
+define UCLIBC_INSTALL_STAGING_CMDS
+	$(MAKE1) -C $(@D) \
+		$(UCLIBC_MAKE_FLAGS) \
+		PREFIX=$(STAGING_DIR) \
+		DEVEL_PREFIX=/usr/ \
+		RUNTIME_PREFIX=/ \
+		install_runtime install_dev
+	$(UCLIBC_INSTALL_UTILS_STAGING)
+endef
+
+# Checks to give errors that the user can understand
+# Must be before we call to kconfig-package
+ifeq ($(BR2_PACKAGE_UCLIBC)$(BR_BUILDING),yy)
+ifeq ($(call qstrip,$(BR2_UCLIBC_CONFIG)),)
+$(error No uClibc configuration file specified, check your BR2_UCLIBC_CONFIG setting)
+endif
+endif
+
+$(eval $(kconfig-package))