################################################################################
#
# uclibc
#
################################################################################

UCLIBC_VERSION = $(call qstrip,$(BR2_UCLIBC_VERSION_STRING))
UCLIBC_SOURCE ?= uClibc-$(UCLIBC_VERSION).tar.bz2
UCLIBC_LICENSE = LGPLv2.1+
UCLIBC_LICENSE_FILES = COPYING.LIB

ifeq ($(BR2_UCLIBC_VERSION_SNAPSHOT),y)
UCLIBC_SITE = http://www.uclibc.org/downloads/snapshots
else ifeq ($(BR2_UCLIBC_VERSION_NG),y)
UCLIBC_SITE = http://downloads.uclibc-ng.org/releases/$(UCLIBC_VERSION)
UCLIBC_SOURCE = uClibc-ng-$(UCLIBC_VERSION).tar.xz
else ifeq ($(BR2_UCLIBC_VERSION_ARC_GIT),y)
UCLIBC_SITE = $(call github,foss-for-synopsys-dwc-arc-processors,uClibc,$(UCLIBC_VERSION))
UCLIBC_SOURCE = uClibc-$(UCLIBC_VERSION).tar.gz
else ifeq ($(BR2_UCLIBC_VERSION_XTENSA_GIT),y)
UCLIBC_SITE = git://git.busybox.net/uClibc
UCLIBC_SOURCE = uClibc-$(UCLIBC_VERSION).tar.gz
else
UCLIBC_SITE = http://www.uclibc.org/downloads
UCLIBC_SOURCE = uClibc-$(UCLIBC_VERSION).tar.xz
endif

UCLIBC_INSTALL_STAGING = YES

# 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_FILE = $(UCLIBC_CONFIG_FILE)

UCLIBC_KCONFIG_OPTS = \
	$(UCLIBC_MAKE_FLAGS) \
	PREFIX=$(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

#
# ARC definitions
#

ifeq ($(UCLIBC_TARGET_ARCH),arc)
UCLIBC_ARC_TYPE = CONFIG_$(call qstrip,$(BR2_UCLIBC_ARC_TYPE))
define UCLIBC_ARC_TYPE_CONFIG
	$(call KCONFIG_ENABLE_OPT,$(UCLIBC_ARC_TYPE),$(@D)/.config)
endef
endif # arc

#
# ARM definitions
#

ifeq ($(UCLIBC_TARGET_ARCH),arm)
define UCLIBC_ARM_ABI_CONFIG
	$(SED) '/CONFIG_ARM_.ABI/d' $(@D)/.config
	$(call KCONFIG_ENABLE_OPT,CONFIG_ARM_EABI,$(@D)/.config)
endef

# Thumb build is broken with threads, build in ARM mode
ifeq ($(BR2_ARM_INSTRUCTIONS_THUMB)$(BR2_TOOLCHAIN_HAS_THREADS),yy)
UCLIBC_EXTRA_CFLAGS += -marm
endif

ifeq ($(BR2_UCLIBC_ARM_BX),y)
define UCLIBC_ARM_BX_CONFIG
	$(call KCONFIG_ENABLE_OPT,USE_BX,$(@D)/.config)
endef
else
define UCLIBC_ARM_BX_CONFIG
	$(call KCONFIG_DISABLE_OPT,USE_BX,$(@D)/.config)
endef
endif

endif # arm

#
# 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),$(@D)/.config)
endef

UCLIBC_MIPS_ISA = CONFIG_MIPS_ISA_$(call qstrip,$(BR2_UCLIBC_MIPS_ISA))
define UCLIBC_MIPS_ISA_CONFIG
	$(SED) '/CONFIG_MIPS_ISA_.*/d' $(@D)/.config
	$(call KCONFIG_ENABLE_OPT,$(UCLIBC_MIPS_ISA),$(@D)/.config)
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),$(@D)/.config)
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),$(@D)/.config)
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
	$(call KCONFIG_DISABLE_OPT,CONFIG_GENERIC,$(@D)/.config)
	$(call KCONFIG_DISABLE_OPT,CONFIG_E500,$(@D)/.config)
	$(call KCONFIG_ENABLE_OPT,$(UCLIBC_POWERPC_TYPE),$(@D)/.config)
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),$(@D)/.config)
endef
endif

#
# Endianness
#

ifeq ($(call qstrip,$(BR2_ENDIAN)),BIG)
define UCLIBC_ENDIAN_CONFIG
	$(call KCONFIG_ENABLE_OPT,ARCH_BIG_ENDIAN,$(@D)/.config)
	$(call KCONFIG_ENABLE_OPT,ARCH_WANTS_BIG_ENDIAN,$(@D)/.config)
	$(call KCONFIG_DISABLE_OPT,ARCH_LITTLE_ENDIAN,$(@D)/.config)
	$(call KCONFIG_DISABLE_OPT,ARCH_WANTS_LITTLE_ENDIAN,$(@D)/.config)
endef
else
define UCLIBC_ENDIAN_CONFIG
	$(call KCONFIG_ENABLE_OPT,ARCH_LITTLE_ENDIAN,$(@D)/.config)
	$(call KCONFIG_ENABLE_OPT,ARCH_WANTS_LITTLE_ENDIAN,$(@D)/.config)
	$(call KCONFIG_DISABLE_OPT,ARCH_BIG_ENDIAN,$(@D)/.config)
	$(call KCONFIG_DISABLE_OPT,ARCH_WANTS_BIG_ENDIAN,$(@D)/.config)
endef
endif

#
# Largefile
#

define UCLIBC_LARGEFILE_CONFIG
	$(call KCONFIG_ENABLE_OPT,UCLIBC_HAS_LFS,$(@D)/.config)
endef

#
# MMU
#

ifeq ($(BR2_USE_MMU),y)
define UCLIBC_MMU_CONFIG
	$(call KCONFIG_ENABLE_OPT,ARCH_USE_MMU,$(@D)/.config)
endef
else
define UCLIBC_MMU_CONFIG
	$(call KCONFIG_DISABLE_OPT,ARCH_USE_MMU,$(@D)/.config)
endef
endif

#
# IPv6
#

ifeq ($(BR2_TOOLCHAIN_BUILDROOT_INET_IPV6),y)
UCLIBC_IPV6_CONFIG = $(call KCONFIG_ENABLE_OPT,UCLIBC_HAS_IPV6,$(@D)/.config)
else
UCLIBC_IPV6_CONFIG = $(call KCONFIG_DISABLE_OPT,UCLIBC_HAS_IPV6,$(@D)/.config)
endif

#
# RPC
#

ifeq ($(BR2_TOOLCHAIN_BUILDROOT_INET_RPC),y)
define UCLIBC_RPC_CONFIG
	$(call KCONFIG_ENABLE_OPT,UCLIBC_HAS_RPC,$(@D)/.config)
	$(call KCONFIG_ENABLE_OPT,UCLIBC_HAS_FULL_RPC,$(@D)/.config)
	$(call KCONFIG_ENABLE_OPT,UCLIBC_HAS_REENTRANT_RPC,$(@D)/.config)
endef
else
define UCLIBC_RPC_CONFIG
	$(call KCONFIG_DISABLE_OPT,UCLIBC_HAS_RPC,$(@D)/.config)
	$(call KCONFIG_DISABLE_OPT,UCLIBC_HAS_FULL_RPC,$(@D)/.config)
	$(call KCONFIG_DISABLE_OPT,UCLIBC_HAS_REENTRANT_RPC,$(@D)/.config)
endef
endif

#
# soft-float
#

ifeq ($(BR2_SOFT_FLOAT),y)
define UCLIBC_FLOAT_CONFIG
	$(call KCONFIG_DISABLE_OPT,UCLIBC_HAS_FPU,$(@D)/.config)
	$(call KCONFIG_ENABLE_OPT,UCLIBC_HAS_FLOATS,$(@D)/.config)
	$(call KCONFIG_ENABLE_OPT,DO_C99_MATH,$(@D)/.config)
endef
else
define UCLIBC_FLOAT_CONFIG
	$(call KCONFIG_ENABLE_OPT,UCLIBC_HAS_FPU,$(@D)/.config)
	$(call KCONFIG_ENABLE_OPT,UCLIBC_HAS_FLOATS,$(@D)/.config)
endef
endif

#
# SSP
#
ifeq ($(BR2_TOOLCHAIN_BUILDROOT_USE_SSP),y)
define UCLIBC_SSP_CONFIG
	$(call KCONFIG_ENABLE_OPT,UCLIBC_HAS_SSP,$(@D)/.config)
	$(call KCONFIG_ENABLE_OPT,UCLIBC_BUILD_SSP,$(@D)/.config)
endef
else
define UCLIBC_SSP_CONFIG
	$(call KCONFIG_DISABLE_OPT,UCLIBC_HAS_SSP,$(@D)/.config)
	$(call KCONFIG_DISABLE_OPT,UCLIBC_BUILD_SSP,$(@D)/.config)
endef
endif

#
# Threads
#
ifeq ($(BR2_PTHREADS_NONE),y)
define UCLIBC_THREAD_CONFIG
	$(call KCONFIG_DISABLE_OPT,UCLIBC_HAS_THREADS,$(@D)/.config)
	$(call KCONFIG_DISABLE_OPT,LINUXTHREADS,$(@D)/.config)
	$(call KCONFIG_DISABLE_OPT,LINUXTHREADS_OLD,$(@D)/.config)
	$(call KCONFIG_DISABLE_OPT,UCLIBC_HAS_THREADS_NATIVE,$(@D)/.config)
endef
else ifeq ($(BR2_PTHREADS),y)
define UCLIBC_THREAD_CONFIG
	$(call KCONFIG_ENABLE_OPT,UCLIBC_HAS_THREADS,$(@D)/.config)
	$(call KCONFIG_ENABLE_OPT,LINUXTHREADS_NEW,$(@D)/.config)
	$(call KCONFIG_DISABLE_OPT,LINUXTHREADS_OLD,$(@D)/.config)
	$(call KCONFIG_DISABLE_OPT,UCLIBC_HAS_THREADS_NATIVE,$(@D)/.config)
endef
else ifeq ($(BR2_PTHREADS_OLD),y)
define UCLIBC_THREAD_CONFIG
	$(call KCONFIG_ENABLE_OPT,UCLIBC_HAS_THREADS,$(@D)/.config)
	$(call KCONFIG_DISABLE_OPT,LINUXTHREADS_NEW,$(@D)/.config)
	$(call KCONFIG_ENABLE_OPT,LINUXTHREADS_OLD,$(@D)/.config)
	$(call KCONFIG_DISABLE_OPT,UCLIBC_HAS_THREADS_NATIVE,$(@D)/.config)
endef
else ifeq ($(BR2_PTHREADS_NATIVE),y)
define UCLIBC_THREAD_CONFIG
	$(call KCONFIG_ENABLE_OPT,UCLIBC_HAS_THREADS,$(@D)/.config)
	$(call KCONFIG_DISABLE_OPT,LINUXTHREADS_NEW,$(@D)/.config)
	$(call KCONFIG_DISABLE_OPT,LINUXTHREADS_OLD,$(@D)/.config)
	$(call KCONFIG_ENABLE_OPT,UCLIBC_HAS_THREADS_NATIVE,$(@D)/.config)
endef
endif

#
# Thread debug
#

ifeq ($(BR2_PTHREAD_DEBUG),y)
UCLIBC_THREAD_DEBUG_CONFIG = $(call KCONFIG_ENABLE_OPT,PTHREADS_DEBUG_SUPPORT,$(@D)/.config)
else
UCLIBC_THREAD_DEBUG_CONFIG = $(call KCONFIG_DISABLE_OPT,PTHREADS_DEBUG_SUPPORT,$(@D)/.config)
endif

#
# Locale
#

ifeq ($(BR2_TOOLCHAIN_BUILDROOT_LOCALE),y)
define UCLIBC_LOCALE_CONFIG
	$(call KCONFIG_ENABLE_OPT,UCLIBC_HAS_LOCALE,$(@D)/.config)
	$(call KCONFIG_DISABLE_OPT,UCLIBC_BUILD_ALL_LOCALE,$(@D)/.config)
	$(call KCONFIG_ENABLE_OPT,UCLIBC_BUILD_MINIMAL_LOCALE,$(@D)/.config)
	$(call KCONFIG_SET_OPT,UCLIBC_BUILD_MINIMAL_LOCALES,"$(UCLIBC_LOCALES)",$(@D)/.config)
	$(call KCONFIG_DISABLE_OPT,UCLIBC_PREGENERATED_LOCALE_DATA,$(@D)/.config)
	$(call KCONFIG_DISABLE_OPT,DOWNLOAD_PREGENERATED_LOCALE_DATA,$(@D)/.config)
	$(call KCONFIG_ENABLE_OPT,UCLIBC_HAS_XLOCALE,$(@D)/.config)
	$(call KCONFIG_DISABLE_OPT,UCLIBC_HAS_GLIBC_DIGIT_GROUPING,$(@D)/.config)
endef
else
define UCLIBC_LOCALE_CONFIG
	$(call KCONFIG_DISABLE_OPT,UCLIBC_HAS_LOCALE,$(@D)/.config)
endef
endif

#
# wchar
#

ifeq ($(BR2_TOOLCHAIN_BUILDROOT_WCHAR),y)
UCLIBC_WCHAR_CONFIG = $(call KCONFIG_ENABLE_OPT,UCLIBC_HAS_WCHAR,$(@D)/.config)
else
UCLIBC_WCHAR_CONFIG = $(call KCONFIG_DISABLE_OPT,UCLIBC_HAS_WCHAR,$(@D)/.config)
endif

#
# static/shared libs
#

ifeq ($(BR2_STATIC_LIBS),y)
UCLIBC_SHARED_LIBS_CONFIG = $(call KCONFIG_DISABLE_OPT,HAVE_SHARED,$(@D)/.config)
else
UCLIBC_SHARED_LIBS_CONFIG = $(call KCONFIG_ENABLE_OPT,HAVE_SHARED,$(@D)/.config)
endif

#
# Commands
#

UCLIBC_MAKE_FLAGS = \
	ARCH="$(UCLIBC_TARGET_ARCH)" \
	CROSS_COMPILE="$(TARGET_CROSS)" \
	UCLIBC_EXTRA_CFLAGS="$(UCLIBC_EXTRA_CFLAGS) $(TARGET_ABI)" \
	HOSTCC="$(HOSTCC)"

define UCLIBC_KCONFIG_FIXUP_CMDS
	$(call KCONFIG_SET_OPT,CROSS_COMPILER_PREFIX,"$(TARGET_CROSS)",$(@D)/.config)
	$(call KCONFIG_ENABLE_OPT,TARGET_$(UCLIBC_TARGET_ARCH),$(@D)/.config)
	$(call KCONFIG_SET_OPT,TARGET_ARCH,"$(UCLIBC_TARGET_ARCH)",$(@D)/.config)
	$(call KCONFIG_SET_OPT,KERNEL_HEADERS,"$(LINUX_HEADERS_DIR)/usr/include",$(@D)/.config)
	$(call KCONFIG_SET_OPT,RUNTIME_PREFIX,"/",$(@D)/.config)
	$(call KCONFIG_SET_OPT,DEVEL_PREFIX,"/usr",$(@D)/.config)
	$(call KCONFIG_SET_OPT,SHARED_LIB_LOADER_PREFIX,"/lib",$(@D)/.config)
	$(UCLIBC_MMU_CONFIG)
	$(UCLIBC_ARC_TYPE_CONFIG)
	$(UCLIBC_ARM_ABI_CONFIG)
	$(UCLIBC_ARM_BX_CONFIG)
	$(UCLIBC_MIPS_ABI_CONFIG)
	$(UCLIBC_MIPS_ISA_CONFIG)
	$(UCLIBC_SH_TYPE_CONFIG)
	$(UCLIBC_SPARC_TYPE_CONFIG)
	$(UCLIBC_POWERPC_TYPE_CONFIG)
	$(UCLIBC_X86_TYPE_CONFIG)
	$(UCLIBC_ENDIAN_CONFIG)
	$(UCLIBC_LARGEFILE_CONFIG)
	$(UCLIBC_IPV6_CONFIG)
	$(UCLIBC_RPC_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

ifeq ($(BR2_UCLIBC_INSTALL_TEST_SUITE),y)
define UCLIBC_BUILD_TEST_SUITE
	$(MAKE1) -C $(@D)/test \
		$(UCLIBC_MAKE_FLAGS) \
		ARCH_CFLAGS=-I$(STAGING_DIR)/usr/include \
		UCLIBC_ONLY=1 \
		TEST_INSTALLED_UCLIBC=1 \
		compile
endef
endif

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_TEST_SUITE),y)
define UCLIBC_INSTALL_TEST_SUITE
	mkdir -p $(TARGET_DIR)/root/uClibc
	cp -rdpf $(@D)/test $(TARGET_DIR)/root/uClibc
	$(INSTALL) -D -m 0644 $(@D)/Rules.mak $(TARGET_DIR)/root/uClibc/Rules.mak
	$(INSTALL) -D -m 0644 $(@D)/.config $(TARGET_DIR)/root/uClibc/.config
endef
endif

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

# gcc produces binaries that use ld{64,}-uClibc.so.0 as the program
# interpreter, but since uClibc-ng version is 1.0.0, it generates
# ld{64,}-uClibc.so.1. In order to avoid changing gcc, we simply
# create the necessary symbolic links here.
ifeq ($(BR2_UCLIBC_VERSION_NG),y)
define UCLIBC_INSTALL_LDSO_SYMLINKS
	if [ -e $(TARGET_DIR)/lib/ld64-uClibc.so.1 ]; then \
		(cd $(TARGET_DIR)/lib;ln -sf ld64-uClibc.so.1 ld64-uClibc.so.0) \
	fi
	if [ -e $(TARGET_DIR)/lib/ld-uClibc.so.1 ]; then \
		(cd $(TARGET_DIR)/lib;ln -sf ld-uClibc.so.1 ld-uClibc.so.0) \
	fi
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)
	$(UCLIBC_BUILD_TEST_SUITE)
	$(UCLIBC_INSTALL_TEST_SUITE)
	$(UCLIBC_INSTALL_LDSO_SYMLINKS)
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)/usr/bin/ldd
	ln -sf ldd $(HOST_DIR)/usr/bin/$(GNU_TARGET_NAME)-ldd
	$(INSTALL) -D -m 0755 $(@D)/utils/ldconfig.host $(HOST_DIR)/usr/bin/ldconfig
	ln -sf ldconfig $(HOST_DIR)/usr/bin/$(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

$(eval $(kconfig-package))