uclibc: add ability to use uClibc-ng 1.0.0

This commit adds support for a new uClibc version: uClibc-ng
1.0.0. Since its build system is for now exactly the same as the one
of uClibc, we don't create a new package, but instead simply add it as
a new uClibc version.

The only special trick needed is the creation of a symlink to the
program interpreter, due to a mismatch between the program interpreter
file name generated by uClibc-ng and the one used by gcc.

This patch is heavily based on previous work from Waldemar Brodkorb.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Tested-by: Waldemar Brodkorb <wbx@uclibc-ng.org>

package/uclibc/Config.in

@@ -21,6 +21,9 @@ choice
 		bool "uClibc Git ARC"
 		depends on BR2_arc
 
+	config BR2_UCLIBC_NG_VERSION_1_0_0
+		bool "uClibc-ng 1.0.0"
+
 	config BR2_UCLIBC_VERSION_XTENSA_GIT
 		bool "uClibc Git Xtensa"
 		depends on BR2_xtensa
@@ -42,12 +45,14 @@ config BR2_UCLIBC_VERSION_STRING
 	string
 	default 0.9.33.2	if BR2_UCLIBC_VERSION_0_9_33
 	default "arc-2014.12" if BR2_UCLIBC_VERSION_ARC_GIT
+	default 1.0.0		if BR2_UCLIBC_NG_VERSION_1_0_0
 	default "7bf35c8b7d4a1f97174eb49f47f33946b282114c" if BR2_UCLIBC_VERSION_XTENSA_GIT
 	default BR2_USE_UCLIBC_SNAPSHOT	if BR2_UCLIBC_VERSION_SNAPSHOT
 
 config BR2_UCLIBC_CONFIG
 	string "uClibc configuration file to use?"
 	default "package/uclibc/uClibc-0.9.33.config" if BR2_UCLIBC_VERSION_0_9_33
+	default "package/uclibc/uClibc-ng-1.0.0.config" if BR2_UCLIBC_NG_VERSION_1_0_0
 	default "package/uclibc/uClibc-snapshot.config" if BR2_UCLIBC_VERSION_ARC_GIT
 	default "package/uclibc/uClibc-snapshot.config" if BR2_UCLIBC_VERSION_SNAPSHOT
 	default "package/uclibc/uClibc-snapshot.config" if BR2_UCLIBC_VERSION_XTENSA_GIT

package/uclibc/uClibc-ng-1.0.0.config

@@ -0,0 +1,280 @@
+#
+# Automatically generated make config: don't edit
+# Version: 1.0.0
+#
+# TARGET_alpha is not set
+# TARGET_arc is not set
+# TARGET_arm is not set
+# TARGET_avr32 is not set
+# TARGET_bfin is not set
+# TARGET_cris is not set
+# TARGET_e1 is not set
+# TARGET_frv is not set
+# TARGET_h8300 is not set
+# TARGET_hppa is not set
+# TARGET_i386 is not set
+# TARGET_i960 is not set
+# TARGET_ia64 is not set
+# TARGET_m68k is not set
+# TARGET_metag is not set
+# TARGET_microblaze is not set
+# TARGET_mips is not set
+# TARGET_nios is not set
+# TARGET_nios2 is not set
+# TARGET_powerpc is not set
+# TARGET_sh is not set
+# TARGET_sh64 is not set
+# TARGET_sparc is not set
+# TARGET_v850 is not set
+# TARGET_vax is not set
+# TARGET_x86_64 is not set
+# TARGET_xtensa is not set
+# TARGET_c6x is not set
+
+# CONFIG_GENERIC_ARM is not set
+# CONFIG_ARM610 is not set
+# CONFIG_ARM710 is not set
+# CONFIG_ARM7TDMI is not set
+# CONFIG_ARM720T is not set
+# CONFIG_ARM920T is not set
+# CONFIG_ARM922T is not set
+# CONFIG_ARM926T is not set
+# CONFIG_ARM10T is not set
+# CONFIG_ARM1136JF_S is not set
+# CONFIG_ARM1176JZ_S is not set
+# CONFIG_ARM1176JZF_S is not set
+# CONFIG_ARM_CORTEX_M3 is not set
+# CONFIG_ARM_CORTEX_M1 is not set
+# CONFIG_ARM_SA110 is not set
+# CONFIG_ARM_SA1100 is not set
+# CONFIG_ARM_XSCALE is not set
+# CONFIG_ARM_IWMMXT is not set
+
+# COMPILE_IN_THUMB_MODE is not set
+USE_BX=y
+
+TARGET_SUBARCH=""
+#
+# Target Architecture Features and Options
+#
+TARGET_ARCH="none"
+FORCE_OPTIONS_FOR_ARCH=y
+#
+# Using ELF file format
+#
+# ARCH_LITTLE_ENDIAN is not set
+# ARCH_BIG_ENDIAN is not set
+# ARCH_WANTS_LITTLE_ENDIAN is not set
+# ARCH_WANTS_BIG_ENDIAN is not set
+ARCH_HAS_MMU=y
+ARCH_USE_MMU=y
+UCLIBC_HAS_FLOATS=y
+UCLIBC_HAS_FPU=y
+DO_C99_MATH=y
+# DO_XSI_MATH is not set
+# UCLIBC_HAS_FENV is not set
+UCLIBC_HAS_LONG_DOUBLE_MATH=y
+KERNEL_HEADERS="/usr/src/linux/include"
+HAVE_DOT_CONFIG=y
+
+#
+# General Library Settings
+#
+# HAVE_NO_PIC is not set
+DOPIC=y
+# ARCH_HAS_NO_SHARED is not set
+# ARCH_HAS_NO_LDSO is not set
+# FORCE_SHAREABLE_TEXT_SEGMENTS is not set
+LDSO_LDD_SUPPORT=y
+# LDSO_CACHE_SUPPORT is not set
+LDSO_PRELOAD_ENV_SUPPORT=y
+# LDSO_PRELOAD_FILE_SUPPORT is not set
+# LDSO_STANDALONE_SUPPORT is not set
+# LDSO_PRELINK_SUPPORT is not set
+# UCLIBC_STATIC_LDCONFIG is not set
+LDSO_RUNPATH=y
+LDSO_SAFE_RUNPATH=y
+LDSO_SEARCH_INTERP_PATH=y
+LDSO_LD_LIBRARY_PATH=y
+# LDSO_NO_CLEANUP is not set
+UCLIBC_CTOR_DTOR=y
+# LDSO_GNU_HASH_SUPPORT is not set
+# HAS_NO_THREADS is not set
+LINUXTHREADS_OLD=y
+# LINUXTHREADS_NEW is not set
+# UCLIBC_HAS_THREADS_NATIVE is not set
+UCLIBC_HAS_THREADS=y
+# PTHREADS_DEBUG_SUPPORT is not set
+UCLIBC_HAS_SYSLOG=y
+UCLIBC_HAS_LFS=y
+# MALLOC is not set
+# MALLOC_SIMPLE is not set
+MALLOC_STANDARD=y
+MALLOC_GLIBC_COMPAT=y
+UCLIBC_HAS_OBSTACK=y
+UCLIBC_DYNAMIC_ATEXIT=y
+# COMPAT_ATEXIT is not set
+UCLIBC_SUSV2_LEGACY=y
+UCLIBC_SUSV3_LEGACY=y
+# UCLIBC_SUSV3_LEGACY_MACROS is not set
+UCLIBC_SUSV4_LEGACY=y
+# UCLIBC_STRICT_HEADERS is not set
+# UCLIBC_HAS_STUBS is not set
+UCLIBC_HAS_SHADOW=y
+UCLIBC_HAS_PROGRAM_INVOCATION_NAME=y
+UCLIBC_HAS___PROGNAME=y
+UCLIBC_HAS_PTY=y
+ASSUME_DEVPTS=y
+UNIX98PTY_ONLY=y
+UCLIBC_HAS_GETPT=y
+UCLIBC_HAS_LIBUTIL=y
+UCLIBC_HAS_TM_EXTENSIONS=y
+UCLIBC_HAS_TZ_CACHING=y
+UCLIBC_HAS_TZ_FILE=y
+UCLIBC_HAS_TZ_FILE_READ_MANY=y
+UCLIBC_TZ_FILE_PATH="/etc/TZ"
+UCLIBC_FALLBACK_TO_ETC_LOCALTIME=y
+
+#
+# Advanced Library Settings
+#
+UCLIBC_PWD_BUFFER_SIZE=256
+UCLIBC_GRP_BUFFER_SIZE=256
+
+#
+# Support various families of functions
+#
+UCLIBC_LINUX_MODULE_26=y
+# UCLIBC_LINUX_MODULE_24 is not set
+UCLIBC_LINUX_SPECIFIC=y
+UCLIBC_HAS_GNU_ERROR=y
+UCLIBC_BSD_SPECIFIC=y
+UCLIBC_HAS_BSD_ERR=y
+UCLIBC_HAS_OBSOLETE_BSD_SIGNAL=y
+# UCLIBC_HAS_OBSOLETE_SYSV_SIGNAL is not set
+# UCLIBC_NTP_LEGACY is not set
+# UCLIBC_SV4_DEPRECATED is not set
+UCLIBC_HAS_REALTIME=y
+UCLIBC_HAS_ADVANCED_REALTIME=y
+UCLIBC_HAS_EPOLL=y
+UCLIBC_HAS_XATTR=y
+UCLIBC_HAS_PROFILING=y
+UCLIBC_HAS_CRYPT_IMPL=y
+# UCLIBC_HAS_SHA256_CRYPT_IMPL is not set
+# UCLIBC_HAS_SHA512_CRYPT_IMPL is not set
+UCLIBC_HAS_CRYPT=y
+UCLIBC_HAS_NETWORK_SUPPORT=y
+UCLIBC_HAS_SOCKET=y
+UCLIBC_HAS_IPV4=y
+# UCLIBC_HAS_IPV6 is not set
+# UCLIBC_HAS_RPC is not set
+# UCLIBC_HAS_FULL_RPC is not set
+# UCLIBC_HAS_REENTRANT_RPC is not set
+UCLIBC_USE_NETLINK=y
+UCLIBC_SUPPORT_AI_ADDRCONFIG=y
+# UCLIBC_HAS_BSD_RES_CLOSE is not set
+UCLIBC_HAS_COMPAT_RES_STATE=y
+# UCLIBC_HAS_EXTRA_COMPAT_RES_STATE is not set
+UCLIBC_HAS_RESOLVER_SUPPORT=y
+UCLIBC_HAS_LIBRESOLV_STUB=y
+UCLIBC_HAS_LIBNSL_STUB=y
+
+#
+# String and Stdio Support
+#
+UCLIBC_HAS_STRING_GENERIC_OPT=y
+UCLIBC_HAS_STRING_ARCH_OPT=y
+UCLIBC_HAS_CTYPE_TABLES=y
+UCLIBC_HAS_CTYPE_SIGNED=y
+# UCLIBC_HAS_CTYPE_UNSAFE is not set
+UCLIBC_HAS_CTYPE_CHECKED=y
+# UCLIBC_HAS_CTYPE_ENFORCED is not set
+# UCLIBC_HAS_WCHAR is not set
+# UCLIBC_HAS_LOCALE is not set
+UCLIBC_HAS_HEXADECIMAL_FLOATS=y
+# UCLIBC_HAS_GLIBC_DIGIT_GROUPING is not set
+UCLIBC_HAS_GLIBC_CUSTOM_PRINTF=y
+# USE_OLD_VFPRINTF is not set
+UCLIBC_PRINTF_SCANF_POSITIONAL_ARGS=9
+UCLIBC_HAS_SCANF_GLIBC_A_FLAG=y
+# UCLIBC_HAS_STDIO_BUFSIZ_NONE is not set
+# UCLIBC_HAS_STDIO_BUFSIZ_256 is not set
+# UCLIBC_HAS_STDIO_BUFSIZ_512 is not set
+# UCLIBC_HAS_STDIO_BUFSIZ_1024 is not set
+# UCLIBC_HAS_STDIO_BUFSIZ_2048 is not set
+UCLIBC_HAS_STDIO_BUFSIZ_4096=y
+# UCLIBC_HAS_STDIO_BUFSIZ_8192 is not set
+UCLIBC_HAS_STDIO_BUILTIN_BUFFER_NONE=y
+# UCLIBC_HAS_STDIO_BUILTIN_BUFFER_4 is not set
+# UCLIBC_HAS_STDIO_BUILTIN_BUFFER_8 is not set
+# UCLIBC_HAS_STDIO_SHUTDOWN_ON_ABORT is not set
+# UCLIBC_HAS_STDIO_GETC_MACRO is not set
+# UCLIBC_HAS_STDIO_PUTC_MACRO is not set
+UCLIBC_HAS_STDIO_AUTO_RW_TRANSITION=y
+# UCLIBC_HAS_FOPEN_LARGEFILE_MODE is not set
+UCLIBC_HAS_FOPEN_EXCLUSIVE_MODE=y
+# UCLIBC_HAS_FOPEN_CLOSEEXEC_MODE is not set
+UCLIBC_HAS_GLIBC_CUSTOM_STREAMS=y
+UCLIBC_HAS_PRINTF_M_SPEC=y
+UCLIBC_HAS_ERRNO_MESSAGES=y
+# UCLIBC_HAS_SYS_ERRLIST is not set
+UCLIBC_HAS_SIGNUM_MESSAGES=y
+# UCLIBC_HAS_SYS_SIGLIST is not set
+UCLIBC_HAS_GNU_GETOPT=y
+# UCLIBC_HAS_GNU_GETSUBOPT is not set
+
+#
+# Big and Tall
+#
+UCLIBC_HAS_REGEX=y
+# UCLIBC_HAS_REGEX_OLD is not set
+UCLIBC_HAS_FNMATCH=y
+# UCLIBC_HAS_FNMATCH_OLD is not set
+# UCLIBC_HAS_WORDEXP is not set
+UCLIBC_HAS_NFTW=y
+UCLIBC_HAS_FTW=y
+# UCLIBC_HAS_FTS is not set
+UCLIBC_HAS_GLOB=y
+UCLIBC_HAS_GNU_GLOB=y
+UCLIBC_HAS_UTMPX=y
+
+#
+# Library Installation Options
+#
+RUNTIME_PREFIX="/"
+DEVEL_PREFIX="/usr/"
+MULTILIB_DIR="lib"
+HARDWIRED_ABSPATH=y
+
+#
+# Security options
+#
+# UCLIBC_BUILD_PIE is not set
+# UCLIBC_HAS_ARC4RANDOM is not set
+# HAVE_NO_SSP is not set
+UCLIBC_HAS_SSP=y
+# UCLIBC_HAS_SSP_COMPAT is not set
+# SSP_QUICK_CANARY is not set
+PROPOLICE_BLOCK_ABRT=y
+# PROPOLICE_BLOCK_SEGV is not set
+# UCLIBC_BUILD_SSP is not set
+UCLIBC_BUILD_RELRO=y
+UCLIBC_BUILD_NOW=y
+UCLIBC_BUILD_NOEXECSTACK=y
+
+#
+# uClibc development/debugging options
+#
+CROSS_COMPILER_PREFIX=""
+UCLIBC_EXTRA_CFLAGS=""
+# DODEBUG is not set
+# DODEBUG_PT is not set
+# DOSTRIP is not set
+# DOASSERTS is not set
+# SUPPORT_LD_DEBUG is not set
+# SUPPORT_LD_DEBUG_EARLY is not set
+# UCLIBC_MALLOC_DEBUGGING is not set
+# UCLIBC_HAS_BACKTRACE is not set
+WARNINGS="-Wall"
+# EXTRA_WARNINGS is not set
+# DOMULTI is not set

package/uclibc/uclibc.mk

@@ -11,6 +11,9 @@ UCLIBC_LICENSE_FILES = COPYING.LIB
 
 ifeq ($(BR2_UCLIBC_VERSION_SNAPSHOT),y)
 UCLIBC_SITE = http://www.uclibc.org/downloads/snapshots
+else ifeq ($(BR2_UCLIBC_NG_VERSION_1_0_0),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
@@ -475,6 +478,21 @@ define UCLIBC_INSTALL_UTILS_TARGET
 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_NG_VERSION_1_0_0),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) \
@@ -485,6 +503,7 @@ define UCLIBC_INSTALL_TARGET_CMDS
 	$(UCLIBC_INSTALL_UTILS_TARGET)
 	$(UCLIBC_BUILD_TEST_SUITE)
 	$(UCLIBC_INSTALL_TEST_SUITE)
+	$(UCLIBC_INSTALL_LDSO_SYMLINKS)
 endef
 
 # STATIC has no ld* tools, only getconf