Skip to content

Tags

Tags give the ability to mark specific points in history as being important
  • glibc-2.24.90
    Open master branch for glibc 2.25 development
  • glibc-2.25.90
    Open master branch for glibc 2.26 development
  • glibc-2.16-ports-before-merge
    Last change to the ports tree before the merge into glibc master
  • glibc-2.26
    1c9a5c27 · Update for 2.26 release ·
    FROM: Siddhesh Poyarekar <siddhesh@sourceware.org>
    SUBJECT: The GNU C Library version 2.26 is now available
    
    The GNU C Library
    =================
    
    The GNU C Library version 2.26 is now available.
    
    The GNU C Library is used as *the* C library in the GNU system and
    in GNU/Linux systems, as well as many other systems that use Linux
    as the kernel.
    
    The GNU C Library is primarily designed to be a portable
    and high performance C library.  It follows all relevant
    standards including ISO C11 and POSIX.1-2008.  It is also
    internationalized and has one of the most complete
    internationalization interfaces known.
    
    The GNU C Library webpage is at http://www.gnu.org/software/libc/
    
    Packages for the 2.26 release may be downloaded from:
            http://ftpmirror.gnu.org/libc/
            http://ftp.gnu.org/gnu/libc/
    
    The mirror list is at http://www.gnu.org/order/ftp.html
    
    NEWS for version 2.26
    =====================
    
    Major new features:
    
    * A per-thread cache has been added to malloc. Access to the cache requires
      no locks and therefore significantly accelerates the fast path to allocate
      and free small amounts of memory. Refilling an empty cache requires locking
      the underlying arena. Performance measurements show significant gains in a
      wide variety of user workloads. Workloads were captured using a special
      instrumented malloc and analyzed with a malloc simulator. Contributed by
      DJ Delorie with the help of Florian Weimer, and Carlos O'Donell.
    
    * Unicode 10.0.0 Support: Character encoding, character type info, and
      transliteration tables are all updated to Unicode 10.0.0, using
      generator scripts contributed by Mike FABIAN (Red Hat).
      These updates cause user visible changes, especially the changes in
      wcwidth for many emoji characters cause problems when emoji sequences
      are rendered with pango, see for example:
      https://bugzilla.gnome.org/show_bug.cgi?id=780669#c5
    
    * Collation of Hungarian has been overhauled and is now consistent with "The
      Rules of Hungarian Orthography, 12th edition" (Bug 18934).  Contributed by
      Egmont Koblinger.
    
    * Improvements to the DNS stub resolver, contributed by Florian Weimer:
    
      - The GNU C Library will now detect when /etc/resolv.conf has been
        modified and reload the changed configuration.  The new resolver option
        “no-reload” (RES_NORELOAD) disables this behavior.
    
      - The GNU C Library now supports an arbitrary number of search domains
        (configured using the “search” directive in /etc/resolv.conf);
        previously, there was a hard limit of six domains.  For backward
        compatibility, applications that directly modify the ‘_res’ global
        object are still limited to six search domains.
    
      - When the “rotate” (RES_ROTATE) resolver option is active, the GNU C
        Library will now randomly pick a name server from the configuration as a
        starting point.  (Previously, the second name server was always used.)
    
    * The tunables feature is now enabled by default.  This allows users to tweak
      behavior of the GNU C Library using the GLIBC_TUNABLES environment variable.
    
    * New function reallocarray, which resizes an allocated block (like realloc)
      to the product of two sizes, with a guaranteed clean failure upon integer
      overflow in the multiplication.  Originally from OpenBSD, contributed by
      Dennis Wölfing and Rüdiger Sonderfeld.
    
    * New wrappers for the Linux-specific system calls preadv2 and pwritev2.
      These are extended versions of preadv and pwritev, respectively, taking an
      additional flags argument.  The set of supported flags depends on the
      running kernel; full support currently requires kernel 4.7 or later.
    
    * posix_spawnattr_setflags now supports the flag POSIX_SPAWN_SETSID, to
      create a new session ID for the spawned process.  This feature is
      scheduled to be added to the next major revision of POSIX; for the time
      being, it is available under _GNU_SOURCE.
    
    * errno.h is now safe to use from C-preprocessed assembly language on all
      supported operating systems.  In this context, it will only define the
      Exxxx constants, as preprocessor macros expanding to integer literals.
    
    * On ia64, powerpc64le, x86-32, and x86-64, the math library now implements
      128-bit floating point as defined by ISO/IEC/IEEE 60559:2011 (IEEE
      754-2008) and ISO/IEC TS 18661-3:2015.  Contributed by Paul E. Murphy,
      Gabriel F. T. Gomes, Tulio Magno Quites Machado Filho, and Joseph Myers.
    
      To compile programs that use this feature, the compiler must support
      128-bit floating point with the type name _Float128 (as defined by TS
      18661-3) or __float128 (the nonstandard name used by GCC for C++, and for
      C prior to version 7).  _GNU_SOURCE or __STDC_WANT_IEC_60559_TYPES_EXT__
      must be defined to make the new interfaces visible.
    
      The new functions and macros correspond to those present for other
      floating-point types (except for a few obsolescent interfaces not
      supported for the new type), with F128 or f128 suffixes; for example,
      strtof128, HUGE_VAL_F128 and cosf128.  Following TS 18661-3, there are no
      printf or scanf formats for the new type; the strfromf128 and strtof128
      interfaces should be used instead.
    
    Deprecated and removed features, and other changes affecting compatibility:
    
    * The synchronization that pthread_spin_unlock performs has been changed to
      now be equivalent to a C11 atomic store with release memory order to the
      spin lock's memory location.  Previously, several (but not all)
      architectures used stronger synchronization (e.g., containing what is
      often called a full barrier).  This change can improve performance, but
      may affect odd fringe uses of spin locks that depend on the previous
      behavior (e.g., using spin locks as atomic variables to try to implement
      Dekker's mutual exclusion algorithm).
    
    * The port to Native Client running on ARMv7-A (--host=arm-nacl) has been
      removed.
    
    * Sun RPC is deprecated.  The rpcgen program, librpcsvc, and Sun RPC headers
      will only be built and installed when the GNU C Library is configured with
      --enable-obsolete-rpc.  This allows alternative RPC implementations, such
      as TIRPC or rpcsvc-proto, to be used.
    
    * The NIS(+) name service modules, libnss_nis, libnss_nisplus, and
      libnss_compat, are deprecated, and will not be built or installed by
      default.
    
      The NIS(+) support library, libnsl, is also deprecated.  By default, a
      compatibility shared library will be built and installed, but not headers
      or development libraries. Only a few NIS-related programs require this
      library.  (In particular, the GNU C Library has never required programs
      that use 'gethostbyname' to be linked with libnsl.)
    
      Replacement implementations based on TIRPC, which additionally support
      IPv6, are available from <https://github.com/thkukuk/>.  The configure
      option --enable-obsolete-nsl will cause libnsl's headers, and the NIS(+)
      name service modules, to be built and installed.
    
    * The DNS stub resolver no longer performs EDNS fallback.  If EDNS or DNSSEC
      support is enabled, the configured recursive resolver must support EDNS.
      (Responding to EDNS-enabled queries with responses which are not
      EDNS-enabled is fine, but FORMERR responses are not.)
    
    * res_mkquery and res_nmkquery no longer support the IQUERY opcode.  DNS
      servers have not supported this opcode for a long time.
    
    * The _res_opcodes variable has been removed from libresolv.  It had been
      exported by accident.
    
    * <string.h> no longer includes inline versions of any string functions,
      as this kind of optimization is better done by the compiler.  The macros
      __USE_STRING_INLINES and __NO_STRING_INLINES no longer have any effect.
    
    * The nonstandard header <xlocale.h> has been removed.  Most programs should
      use <locale.h> instead.  If you have a specific need for the definition of
      locale_t with no other declarations, please contact
      libc-alpha@sourceware.org and explain.
    
    * The obsolete header <sys/ultrasound.h> has been removed.
    
    * The obsolete signal constant SIGUNUSED is no longer defined by <signal.h>.
    
    * The obsolete function cfree has been removed.  Applications should use
      free instead.
    
    * The stack_t type no longer has the name struct sigaltstack.  This changes
      the C++ name mangling for interfaces involving this type.
    
    * The ucontext_t type no longer has the name struct ucontext.  This changes
      the C++ name mangling for interfaces involving this type.
    
    * On M68k GNU/Linux and MIPS GNU/Linux, the fpregset_t type no longer has
      the name struct fpregset.  On Nios II GNU/Linux, the mcontext_t type no
      longer has the name struct mcontext.  On SPARC GNU/Linux, the struct
      mc_fq, struct rwindow, struct fpq and struct fq types are no longer
      defined in sys/ucontext.h, the mc_fpu_t type no longer has the name struct
      mc_fpu, the gwindows_t type no longer has the name struct gwindows and the
      fpregset_t type no longer has the name struct fpu.  This changes the C++
      name mangling for interfaces involving those types.
    
    * On S/390 GNU/Linux, the constants defined by <sys/ptrace.h> have been
      synced with the kernel:
    
        - PTRACE_GETREGS, PTRACE_SETREGS, PTRACE_GETFPREGS and PTRACE_SETFPREGS
          are not supported on this architecture and have been removed.
    
        - PTRACE_SINGLEBLOCK, PTRACE_SECCOMP_GET_FILTER, PTRACE_PEEKUSR_AREA,
          PTRACE_POKEUSR_AREA, PTRACE_GET_LAST_BREAK, PTRACE_ENABLE_TE,
          PTRACE_DISABLE_TE and PTRACE_TE_ABORT_RAND have been added.
    
      Programs that assume the GET/SETREGS ptrace requests are universally
      available will now fail to build, instead of malfunctioning at runtime.
    
    Changes to build and runtime requirements:
    
    * Linux kernel 3.2 or later is required at runtime, on all architectures
      supported by that kernel.  (This is a change from version 2.25 only for
      x86-32 and x86-64.)
    
    * GNU Binutils 2.25 or later is now required to build the GNU C Library.
    
    * On most architectures, GCC 4.9 or later is required to build the GNU C
      Library.  On powerpc64le, GCC 6.2 or later is required.
    
      Older GCC versions and non-GNU compilers are still supported when
      compiling programs that use the GNU C Library.  (We do not know exactly
      how old, and some GNU extensions to C may be _de facto_ required.  If you
      are interested in helping us make this statement less vague, please
      contact libc-alpha@sourceware.org.)
    
    Security related changes:
    
    * The DNS stub resolver limits the advertised UDP buffer size to 1200 bytes,
      to avoid fragmentation-based spoofing attacks (CVE-2017-12132).
    
    * LD_LIBRARY_PATH is now ignored in binaries running in privileged AT_SECURE
      mode to guard against local privilege escalation attacks (CVE-2017-1000366).
    
    * Avoid printing a backtrace from the __stack_chk_fail function since it is
      called on a corrupt stack and a backtrace is unreliable on a corrupt stack
      (CVE-2010-3192).
    
    * A use-after-free vulnerability in clntudp_call in the Sun RPC system has been
      fixed (CVE-2017-12133).
    
    Contributors
    ============
    
    This release was made possible by the contributions of many people.
    The maintainers are grateful to everyone who has contributed
    changes or bug reports.  These include:
    
    Adhemerval Zanella
    Akhilesh Kumar
    Alan Modra
    Alexey Neyman
    Andreas Schwab
    Arjun Shankar
    Benjamin Cama
    Carlos O'Donell
    Chris Leonard
    Christian Borntraeger
    Christian Brauner
    Christopher Chittleborough
    Chung-Lin Tang
    DJ Delorie
    Dennis Wölfing
    Dmitry Bilunov
    Dmitry V. Levin
    Egmont Koblinger
    Eyolf Østrem
    Florian Weimer
    Gabriel F. T. Gomes
    Gordana Cmiljanovic
    H.J. Lu
    Ihar Hrachyshka
    Ivo Raisr
    Jiong Wang
    John David Anglin
    Joseph Myers
    Justus Winter
    Kir Kolyshkin
    Marko Myllynen
    Massimeddu Cireddu
    Matthew Krupcale
    Mike FABIAN
    Mike Frysinger
    Mousa Moradi
    Nathan Rossi
    Paul Clarke
    Paul E. Murphy
    Paul Eggert
    Peng Wu
    Phil Blundell
    Prakhar Bahuguna
    Rabin Vincent
    Rafal Luzynski
    Rajalakshmi Srinivasaraghavan
    Rical Jasan
    Rogerio A. Cardoso
    Samuel Thibault
    Santhosh Thottingal
    Siddhesh Poyarekar
    Slava Barinov
    Stefan Liebler
    Steve Ellcey
    Sunyeop Lee
    Szabolcs Nagy
    Thorsten Kukuk
    Tulio Magno Quites Machado Filho
    Uros Bizjak
    Vladimir Mezentsev
    Wainer dos Santos Moschetta
    Wilco Dijkstra
    Wladimir J. van der Laan
    Yury Norov
    Zack Weinberg
    
    
  • glibc-2.25
    db0242e3 · Update for 2.25 release ·
    The GNU C Library
    =================
    
    The GNU C Library version 2.25 is now available.
    
    The GNU C Library is used as *the* C library in the GNU system and
    in GNU/Linux systems, as well as many other systems that use Linux
    as the kernel.
    
    The GNU C Library is primarily designed to be a portable
    and high performance C library.  It follows all relevant
    standards including ISO C11 and POSIX.1-2008.  It is also
    internationalized and has one of the most complete
    internationalization interfaces known.
    
    The GNU C Library webpage is at http://www.gnu.org/software/libc/
    
    Packages for the 2.25 release may be downloaded from:
            http://ftpmirror.gnu.org/libc/
            http://ftp.gnu.org/gnu/libc/
    
    The mirror list is at http://www.gnu.org/order/ftp.html
    
    NEWS for version 2.25
    =====================
    
    * The feature test macro __STDC_WANT_LIB_EXT2__, from ISO/IEC TR
      24731-2:2010, is supported to enable declarations of functions from that
      TR.  Note that not all functions from that TR are supported by the GNU C
      Library.
    
    * The feature test macro __STDC_WANT_IEC_60559_BFP_EXT__, from ISO/IEC TS
      18661-1:2014, is supported to enable declarations of functions and macros
      from that TS.  Note that not all features from that TS are supported by
      the GNU C Library.
    
    * The feature test macro __STDC_WANT_IEC_60559_FUNCS_EXT__, from ISO/IEC TS
      18661-4:2015, is supported to enable declarations of functions and macros
      from that TS.  Note that most features from that TS are not supported by
      the GNU C Library.
    
    * The nonstandard feature selection macros _REENTRANT and _THREAD_SAFE are
      now treated as compatibility synonyms for _POSIX_C_SOURCE=199506L.
      Since the GNU C Library defaults to a much newer revision of POSIX, this
      will only affect programs that specifically request an old conformance
      mode.  For instance, a program compiled with -std=c89 -D_REENTRANT will
      see a change in the visible declarations, but a program compiled with
      just -D_REENTRANT, or -std=c99 -D_POSIX_C_SOURCE=200809L -D_REENTRANT,
      will not.
    
      Some C libraries once required _REENTRANT and/or _THREAD_SAFE to be
      defined by all multithreaded code, but glibc has not required this for
      many years.
    
    * The inclusion of <sys/sysmacros.h> by <sys/types.h> is deprecated.  This
      means that in a future release, the macros “major”, “minor”, and “makedev”
      will only be available from <sys/sysmacros.h>.
    
      These macros are not part of POSIX nor XSI, and their names frequently
      collide with user code; see for instance glibc bug 19239 and Red Hat bug
      130601.  <stdlib.h> includes <sys/types.h> under _GNU_SOURCE, and C++ code
      presently cannot avoid being compiled under _GNU_SOURCE, exacerbating the
      problem.
    
    * New <fenv.h> features from TS 18661-1:2014 are added to libm: the
      fesetexcept, fetestexceptflag, fegetmode and fesetmode functions, the
      femode_t type and the FE_DFL_MODE and FE_SNANS_ALWAYS_SIGNAL macros.
    
    * Integer width macros from TS 18661-1:2014 are added to <limits.h>:
      CHAR_WIDTH, SCHAR_WIDTH, UCHAR_WIDTH, SHRT_WIDTH, USHRT_WIDTH, INT_WIDTH,
      UINT_WIDTH, LONG_WIDTH, ULONG_WIDTH, LLONG_WIDTH, ULLONG_WIDTH; and to
      <stdint.h>: INT8_WIDTH, UINT8_WIDTH, INT16_WIDTH, UINT16_WIDTH,
      INT32_WIDTH, UINT32_WIDTH, INT64_WIDTH, UINT64_WIDTH, INT_LEAST8_WIDTH,
      UINT_LEAST8_WIDTH, INT_LEAST16_WIDTH, UINT_LEAST16_WIDTH,
      INT_LEAST32_WIDTH, UINT_LEAST32_WIDTH, INT_LEAST64_WIDTH,
      UINT_LEAST64_WIDTH, INT_FAST8_WIDTH, UINT_FAST8_WIDTH, INT_FAST16_WIDTH,
      UINT_FAST16_WIDTH, INT_FAST32_WIDTH, UINT_FAST32_WIDTH, INT_FAST64_WIDTH,
      UINT_FAST64_WIDTH, INTPTR_WIDTH, UINTPTR_WIDTH, INTMAX_WIDTH,
      UINTMAX_WIDTH, PTRDIFF_WIDTH, SIG_ATOMIC_WIDTH, SIZE_WIDTH, WCHAR_WIDTH,
      WINT_WIDTH.
    
    * New <math.h> features are added from TS 18661-1:2014:
    
      - Signaling NaN macros: SNANF, SNAN, SNANL.
    
      - Nearest integer functions: roundeven, roundevenf, roundevenl, fromfp,
        fromfpf, fromfpl, ufromfp, ufromfpf, ufromfpl, fromfpx, fromfpxf,
        fromfpxl, ufromfpx, ufromfpxf, ufromfpxl.
    
      - llogb functions: the llogb, llogbf and llogbl functions, and the
        FP_LLOGB0 and FP_LLOGBNAN macros.
    
      - Max-min magnitude functions: fmaxmag, fmaxmagf, fmaxmagl, fminmag,
        fminmagf, fminmagl.
    
      - Comparison macros: iseqsig.
    
      - Classification macros: iscanonical, issubnormal, iszero.
    
      - Total order functions: totalorder, totalorderf, totalorderl,
        totalordermag, totalordermagf, totalordermagl.
    
      - Canonicalize functions: canonicalize, canonicalizef, canonicalizel.
    
      - NaN functions: getpayload, getpayloadf, getpayloadl, setpayload,
        setpayloadf, setpayloadl, setpayloadsig, setpayloadsigf, setpayloadsigl.
    
    * The functions strfromd, strfromf, and strfroml, from ISO/IEC TS 18661-1:2014,
      are added to libc.  They convert a floating-point number into string.
    
    * Most of glibc can now be built with the stack smashing protector enabled.
      It is recommended to build glibc with --enable-stack-protector=strong.
      Implemented by Nick Alcock (Oracle).
    
    * The function explicit_bzero, from OpenBSD, has been added to libc.  It is
      intended to be used instead of memset() to erase sensitive data after use;
      the compiler will not optimize out calls to explicit_bzero even if they
      are "unnecessary" (in the sense that no _correct_ program can observe the
      effects of the memory clear).
    
    * On ColdFire, MicroBlaze, Nios II and SH3, the float_t type is now defined
      to float instead of double.  This does not affect the ABI of any libraries
      that are part of the GNU C Library, but may affect the ABI of other
      libraries that use this type in their interfaces.
    
    * On x86_64, when compiling with -mfpmath=387 or -mfpmath=sse+387, the
      float_t and double_t types are now defined to long double instead of float
      and double.  These options are not the default, and this does not affect
      the ABI of any libraries that are part of the GNU C Library, but it may
      affect the ABI of other libraries that use this type in their interfaces,
      if they are compiled or used with those options.
    
    * The getentropy and getrandom functions, and the <sys/random.h> header file
      have been added.
    
    * The buffer size for byte-oriented stdio streams is now limited to 8192
      bytes by default.  Previously, on Linux, the default buffer size on most
      file systems was 4096 bytes (and thus remains unchanged), except on
      network file systems, where the buffer size was unpredictable and could be
      as large as several megabytes.
    
    * The <sys/quota.h> header now includes the <linux/quota.h> header.  Support
      for the Linux quota interface which predates kernel version 2.4.22 has
      been removed.
    
    * The malloc_get_state and malloc_set_state functions have been removed.
      Already-existing binaries that dynamically link to these functions will
      get a hidden implementation in which malloc_get_state is a stub.  As far
      as we know, these functions are used only by GNU Emacs and this change
      will not adversely affect already-built Emacs executables.  Any undumped
      Emacs executables, which normally exist only during an Emacs build, should
      be rebuilt by re-running “./configure; make” in the Emacs build tree.
    
    * The “ip6-dotint” and “no-ip6-dotint” resolver options, and the
      corresponding RES_NOIP6DOTINT flag from <resolv.h> have been removed.
      “no-ip6-dotint” had already been the default, and support for the
      “ip6-dotint” option was removed from the Internet in 2006.
    
    * The "ip6-bytestring" resolver option and the corresponding RES_USEBSTRING
      flag from <resolv.h> have been removed.  The option relied on a
      backwards-incompatible DNS extension which was never deployed on the
      Internet.
    
    * The flags RES_AAONLY, RES_PRIMARY, RES_NOCHECKNAME, RES_KEEPTSIG,
      RES_BLAST defined in the <resolv.h> header file have been deprecated.
      They were already unimplemented.
    
    * The "inet6" option in /etc/resolv.conf and the RES_USE_INET6 flag for
      _res.flags are deprecated.  The flag was standardized in RFC 2133, but
      removed again from the IETF name lookup interface specification in RFC
      2553.  Applications should use getaddrinfo instead.
    
    * DNSSEC-related declarations and definitions have been removed from the
      <arpa/nameser.h> header file, and libresolv will no longer attempt to
      decode the data part of DNSSEC record types.  Previous versions of glibc
      only implemented minimal support for the previous version of DNSSEC, which
      is incompatible with the currently deployed version.
    
    * The resource record type classification macros ns_t_qt_p, ns_t_mrr_p,
      ns_t_rr_p, ns_t_udp_p, ns_t_xfr_p have been removed from the
      <arpa/nameser.h> header file because the distinction between RR types and
      meta-RR types is not officially standardized, subject to revision, and
      thus not suitable for encoding in a macro.
    
    * The types res_sendhookact, res_send_qhook, re_send_rhook, and the qhook
      and rhook members of the res_state type in <resolv.h> have been removed.
      The glibc stub resolver did not support these hooks, but the header file
      did not reflect that.
    
    * For multi-arch support it is recommended to use a GCC which has
      been built with support for GNU indirect functions.  This ensures
      that correct debugging information is generated for functions
      selected by IFUNC resolvers.  This support can either be enabled by
      configuring GCC with '--enable-gnu-indirect-function', or by
      enabling it by default by setting 'default_gnu_indirect_function'
      variable for a particular architecture in the GCC source file
      'gcc/config.gcc'.
    
    * GDB pretty printers have been added for mutex and condition variable
      structures in POSIX Threads. When installed and loaded in gdb these pretty
      printers show various pthread variables in human-readable form when read
      using the 'print' or 'display' commands in gdb.
    
    * Tunables feature added to allow tweaking of the runtime for an application
      program.  This feature can be enabled with the '--enable-tunables' configure
      flag.  The GNU C Library manual has details on usage and README.tunables has
      instructions on adding new tunables to the library.
    
    * A new version of condition variables functions have been implemented in
      the NPTL implementation of POSIX Threads to provide stronger ordering
      guarantees.
    
    * A new version of pthread_rwlock functions have been implemented to use a more
      scalable algorithm primarily through not using a critical section anymore to
      make state changes.
    
    Security related changes:
    
    * On ARM EABI (32-bit), generating a backtrace for execution contexts which
      have been created with makecontext could fail to terminate due to a
      missing .cantunwind annotation.  This has been observed to lead to a hang
      (denial of service) in some Go applications compiled with gccgo.  Reported
      by Andreas Schwab.  (CVE-2016-6323)
    
    * The DNS stub resolver functions would crash due to a NULL pointer
      dereference when processing a query with a valid DNS question type which
      was used internally in the implementation.  The stub resolver now uses a
      question type which is outside the range of valid question type values.
      (CVE-2015-5180)
    
    Contributors
    ============
    
    This release was made possible by the contributions of many people.
    The maintainers are grateful to everyone who has contributed
    changes or bug reports.  These include:
    
    Adhemerval Zanella
    Alan Modra
    Alexandre Oliva
    Andreas Schwab
    Andrew Senkevich
    Aurelien Jarno
    Brent W. Baccala
    Carlos O'Donell
    Chris Metcalf
    Chung-Lin Tang
    DJ Delorie
    David S. Miller
    Denis Kaganovich
    Dmitry V. Levin
    Ernestas Kulik
    Florian Weimer
    Gabriel F T Gomes
    Gabriel F. T. Gomes
    H.J. Lu
    Jakub Jelinek
    James Clarke
    James Greenhalgh
    Jim Meyering
    John David Anglin
    Joseph Myers
    Maciej W. Rozycki
    Mark Wielaard
    Martin Galvan
    Martin Pitt
    Mike Frysinger
    Märt Põder
    Nick Alcock
    Paul E. Murphy
    Paul Murphy
    Rajalakshmi Srinivasaraghavan
    Rasmus Villemoes
    Rical Jasan
    Richard Henderson
    Roland McGrath
    Samuel Thibault
    Siddhesh Poyarekar
    Stefan Liebler
    Steve Ellcey
    Svante Signell
    Szabolcs Nagy
    Tom Tromey
    Torvald Riegel
    Tulio Magno Quites Machado Filho
    Wilco Dijkstra
    Yury Norov
    Zack Weinberg
    
    
  • glibc-2.24
    The GNU C Library
    =================
    
    The GNU C Library version 2.24 is now available.
    
    The GNU C Library is used as *the* C library in the GNU system and
    in GNU/Linux systems, as well as many other systems that use Linux
    as the kernel.
    
    The GNU C Library is primarily designed to be a portable
    and high performance C library.  It follows all relevant
    standards including ISO C11 and POSIX.1-2008.  It is also
    internationalized and has one of the most complete
    internationalization interfaces known.
    
    The GNU C Library webpage is at http://www.gnu.org/software/libc/
    
    Packages for the 2.24 release may be downloaded from:
            http://ftpmirror.gnu.org/libc/
            http://ftp.gnu.org/gnu/libc/
    
    The mirror list is at http://www.gnu.org/order/ftp.html
    
    NEWS for version 2.24
    =====================
    
    * The minimum Linux kernel version that this version of the GNU C Library
      can be used with is 3.2, except on i[4567]86 and x86_64, where Linux
      kernel version 2.6.32 or later suffices (on architectures that already
      required kernel versions more recent than 3.2, those requirements remain
      unchanged).  Linux 3.2 or later kernel headers are required on all
      architectures.
    
    * The pap_AN locale has been deleted.  This has been deprecated for a long
      time.  It has been replaced by pap_AW & pap_CW, both of which have long
      been included in previous releases.
    
    * The readdir_r and readdir64_r functions have been deprecated.  It is
      recommended to use readdir and readdir64 instead.
    
    * The type “union wait” has been removed.  It was deprecated in the early
      1990s and never part of POSIX.  Application code should use the int type
      instead of “union wait”.
    
    * A new NSS action is added to facilitate large distributed system
      administration.  The action, MERGE, allows remote user stores like LDAP
      to be merged into local user stores like /etc/groups in order to provide
      easy to use, updated, and managed sets of merged credentials.  The new
      action can be used by configuring it in /etc/nsswitch.conf:
      group: files [SUCCESS=merge] nis
      Implemented by Stephen Gallagher (Red Hat).
    
    * The deprecated __malloc_initialize_hook variable has been removed from the
      API.
    
    * The long unused localedef --old-style option has been removed.  It hasn't
      done anything in over 16 years.  Scripts using this option can safely
      drop it.
    
    * nextupl, nextup, nextupf, nextdownl, nextdown and nextdownf are added to
      libm.  They are defined by TS 18661 and IEEE754-2008.  The nextup functions
      return the next representable value in the direction of positive infinity
      and the nextdown functions return the next representable value in the
      direction of negative infinity.  These are currently enabled as GNU
      extensions.
    
    Security related changes:
    
    * An unnecessary stack copy in _nss_dns_getnetbyname_r was removed.  It
      could result in a stack overflow when getnetbyname was called with an
      overly long name.  (CVE-2016-3075)
    
    * Previously, getaddrinfo copied large amounts of address data to the stack,
      even after the fix for CVE-2013-4458 has been applied, potentially
      resulting in a stack overflow.  getaddrinfo now uses a heap allocation
      instead.  Reported by Michael Petlan.  (CVE-2016-3706)
    
    * The glob function suffered from a stack-based buffer overflow when it was
      called with the GLOB_ALTDIRFUNC flag and encountered a long file name.
      Reported by Alexander Cherepanov.  (CVE-2016-1234)
    
    * The Sun RPC UDP client could exhaust all available stack space when
      flooded with crafted ICMP and UDP messages.  Reported by Aldy Hernandez'
      alloca plugin for GCC.  (CVE-2016-4429)
    
    * The IPv6 name server management code in libresolv could result in a memory
      leak for each thread which is created, performs a failing naming lookup,
      and exits.  Over time, this could result in a denial of service due to
      memory exhaustion.  Reported by Matthias Schiffer.  (CVE-2016-5417)
    
    The following bugs are resolved with this release:
    
      [1170] localedata: ne_NP: update Nepali locale definition file
      [3629] manual: stpcpy description in string.texi refers to MS-DOG instead
        of MS-DOS.
      [6527] malloc: [powerpc] Malloc alignment insufficient for PowerPC
      [6796] math: fdim() does not set errno on overflow
      [10354] libc: posix_spawn should use vfork() in more cases than presently
      [11213] localedata: localedata: add copyright disclaimer to locale files
      [12143] localedata: chr_US: new Cherokee locale
      [12450] localedata: sgs_LT: new locale
      [12676] localedata: ln_CD: new locale
      [13237] localedata: LC_ADDRESS.country_name: update all locales w/latest
        CLDR data
      [13304] math: fma, fmaf, fmal produce wrong results
      [14259] build: --localedir arg to configure is ignored
      [14499] nptl: Does posix_spawn invoke atfork handlers / use vfork?
      [14750] libc: Race condition in posix_spawn vfork usage vs signal handlers
      [14934] localedata: es_CL: wrong first weekday chilean locale
      [15262] localedata: LC_MESSAGES.yesexpr/noexpr: inconsistent use of
        romanisation
      [15263] localedata: LC_MESSAGES.yesexpr/noexpr: inconsistent use of 1/0
        and +/-
      [15264] localedata: LC_MESSAGES.yesstr/nostr: lacking in many locales
      [15368] nptl: raise() is not async-signal-safe
      [15479] math: ceil, floor, round and trunc raise inexact exception
      [15578] localedata: kk_KZ: various updates
      [16003] localedata: pap_AN: punt old locale
      [16137] localedata: iw_IL: punt old locale
      [16190] localedata: eo: new esperanto locale
      [16374] localedata: lv_LV: change currency symbol in LC_MONETARY to euro
      [16742] malloc: race condition: pthread_atfork() called before first
        malloc() results in unexpected locking behaviour/deadlocks
      [16975] localedata: LC_MESSAGES.yesexpr/noexpr: revisit capitalization in
        all locales
      [16983] localedata: postal_fmt does not allow %l and %n modifiers
      [17565] localedata: pt_PT: wrong (work-)week start
      [17899] math: [powerpc] floorl returns negative zero with FE_DOWNWARD
      [17950] build: Build fails with -msse
      [18205] localedata: be_BY*: wrong first_weekday and first_workday
      [18433] libc: posix_spawn does not return correctly upon failure to
        execute
      [18453] localedata: charmaps/IBM875: incorrect codes
      [18712] string: bits/string2.h incompatible with -O2 -Werror=packed
        -Wsystem-headers
      [18896] localedata: he_IL: improvements for currency
      [18911] localedata: ro_RO: Correcting week day name for "Tuesday" in
        Romanian locale data
      [18960] locale: s390: _nl_locale_subfreeres uses larl opcode on misaligned
        symbol
      [19056] libc: Deprecate readdir_r
      [19133] localedata: pt_*: days & months should be lowercase in Portuguese
        language
      [19198] localedata: nl_NL: small improvements for Dutch locales
      [19257] network: Per-thread memory leak in __res_vinit with IPv6
        nameservers (CVE-2016-5417)
      [19269] build: tst-audit4 and tst-audit10 failures with gcc-6 on non avx
        machine
      [19400] locale: Language missing in  "iso-639.def", trivial fix in
        description
      [19431] malloc: Deadlock between fflush, getdelim, and fork
      [19505] libc: Incorrect file descriptor validity checks in
        posix_spawn_file_actions_add{open,close,dup2}
      [19509] dynamic-link: dlsym, dlvsym do not report errors through dlerror
        when using RTLD_NEXT
      [19512] locale: Stale `#ifndef HAVE_BUILTIN_EXPECT' in
        `intl/{gettextP,loadinfo}.h'
      [19534] libc: execle, execlp may use malloc
      [19568] localedata: *_CH: Swiss locales have inconsistent start of week
      [19573] network: res_nclose and __res_maybe_init disagree about name
        server initialization, breaking Hesiod
      [19575] localedata: Status of GB18030 tables
      [19581] localedata: sr_* date_fmt string contains additional newline
      [19583] string: SSSE3_Fast_Copy_Backward flag needs to be enabled for AMD
        Excavator core
      [19592] math: [ldbl-128ibm] ceill incorrect in non-default rounding modes
      [19593] math: [ldbl-128ibm] truncl incorrect in non-default rounding modes
      [19594] math: [ldbl-128ibm] roundl incorrect in non-default rounding modes
      [19595] math: [ldbl-128ibm] fmodl incorrect for results in subnormal
        double range
      [19602] math: [ldbl-128ibm] fmodl handling of equal arguments with low
        part zero incorrect
      [19603] math: [ldbl-128ibm] remainderl, remquol incorrect sign handling in
        equality tests
      [19610] dynamic-link: ldconfig -X removes stale symbolic links
      [19613] libc: s390x (64 bit) macro expansion WCOREDUMP and others
      [19633] locale: strfmon_l applies global locale to number formatting
      [19642] network: Memory leak in getnameinfo
      [19648] libc: test-skeleton.c: Do not set RLIMIT_DATA
      [19653] libc: Potential for NULL pointer dereference (CWE-476) in
        glibc-2.22
      [19654] math: [x86_64] Need testcase for BZ #19590 fix
      [19671] localedata: Missing Sanity Check for malloc() in 'tst-fmon.c' &
        'tst-numeric.c'
      [19674] math: [ldbl-128ibm] powl incorrect overflow handling
      [19677] math: [ldbl-128ibm] remainderl equality test incorrect for zero
        low part
      [19678] math: [ldbl-128ibm] nextafterl, nexttowardl incorrect sign of zero
        result
      [19679] dynamic-link: gcc-4.9.3 C++ exception handling broken due to
        unaligned stack
      [19726] locale: Converting UCS4LE to INTERNAL with iconv() does not update
        pointers and lengths in error-case.
      [19727] locale: Converting from/to UTF-xx with iconv() does not always
        report errors on UTF-16 surrogates values.
      [19755] nscd: nscd assertion failure in gc
      [19758] dynamic-link: Typo in EXTRA_LD_ENVVARS for x86-64
      [19759] libc: mempcpy shouldn't be inlined
      [19762] dynamic-link: HAS_CPU_FEATURE/HAS_ARCH_FEATURE are easy to misuse
      [19765] libc: s390 needs an optimized mempcpy
      [19779] glob: glob: buffer overflow with GLOB_ALTDIRFUNC due to incorrect
        NAME_MAX limit assumption (CVE-2016-1234)
      [19783] build: benchtests don't support --enable-hardcoded-path-in-tests
      [19787] network: Missing and incorrect truncation checks in getnameinfo
      [19790] math: [ldbl-128ibm] nearbyintl incorrect in non-default rounding
        modes
      [19791] network: Assertion failure in res_query.c with un-connectable name
        server addresses
      [19792] libc: MIPS: backtrace yields infinite backtrace with makecontext
      [19822] math: libm.so install clobbers old version
      [19825] network: resolv: send_vc can return uninitialized data in second
        response to getaddrinfo
      [19830] network: nss_dns: should check RDATA length against buffer length
      [19831] network: nss_dns: getaddrinfo returns uninitialized data when
        confronted with A/AAAA records of invalid size
      [19837] nss: nss_db: No retries for some long lines with a larger buffer
      [19848] math: powl(10,n) for n=-4,-5,-6,-7 is off by more than 1 ULP
      [19853] stdio: Printing IBM long double in decimal with high precision is
        sometimes incorrect
      [19860] build: x86_64: compile errors for tst-audit10 and tst-auditmod10b
      [19861] nptl: libpthread IFUNC resolver for fork can lead to crash
      [19862] network: resolv, nss_dns: Remove remaining logging of unexpected
        record types
      [19865] network: Assertion failure or memory leak in
        _nss_dns_getcanonname_r
      [19868] network: nss_dns: netent code does not skip over non-PTR records
      [19879] network: nss_dns: Stack overflow in getnetbyname implementation
        (CVE-2016-3075)
      [19881] string: Improve x86-64 memset
      [19907] string: Incorrect memcpy tests
      [19916] dynamic-link: S390: fprs/vrs are not saved/restored while
        resolving symbols
      [19925] libc: termios.h XCASE namespace
      [19928] string: memmove-vec-unaligned-erms.S is slow with large data size
      [19929] libc: limits.h NL_NMAX namespace
      [19931] stdio: Memory leak in vfprintf
      [19957] libc: clone(CLONE_VM) access invalid parent memory
      [19963] localedata: en_IL: New locale
      [19989] stdio: stdio.h cuserid namespace
      [19994] network: getaddrinfo does not restore RES_USE_INET6 flag in
        gethosts
      [19996] locale: langinfo.h nl_langinfo_l namespace
      [20005] stdio: fflush on a file opened with fmemopen resets position to 0
      [20010] network: getaddrinfo: Stack overflow in hostent translation
        (CVE-2016-3706)
      [20012] stdio: libio: fmemopen append mode failure
      [20014] stdio: stdio.h namespace for pre-threads POSIX
      [20017] network: resolv: Use gmtime_r instead of gmtime in p_secstodate
      [20023] libc: fcntl.h timespec namespace
      [20024] math: [x86_64] vectorized sincos trashes the stack
      [20031] network: nss_hesiod: Heap overflow in get_txt_records
      [20041] time: sys/time.h timespec namespace
      [20043] libc: unistd.h missing cuserid for UNIX98 and before
      [20044] libc: unistd.h missing pthread_atfork for UNIX98
      [20051] libc: ttyslot in wrong header under wrong conditions
      [20054] libc: gethostname not declared for XPG4
      [20055] libc: termios.h missing tcgetsid for XPG4
      [20072] dynamic-link: x86 init_cpu_features is called twice in static
        executable
      [20073] libc: sys/stat.h fchmod namespace
      [20074] libc: stdlib.h rand_r namespace
      [20076] libc: sys/stat.h missing S_IFSOCK, S_ISSOCK for XPG4
      [20094] libc: stdlib.h should not declare grantpt, ptsname, unlockpt for
        XPG3
      [20111] libc: struct sockaddr_storage cannot be aggregate-copied
      [20112] network: sunrpc: stack (frame) overflow in Sun RPC clntudp_call
        (CVE-2016-4429)
      [20115] string: Extra alignment in memset-vec-unaligned-erms.S
      [20119] libc: Wrong mask for processors level type from CPUID
      [20139] dynamic-link: Upper part of zmm is zeroed if Glibc is built with
        AS not supporting AVX512
      [20151] math: [ldbl-128/ldbl-128ibm] j0l, j1l, y0l, y1l return sNaN for
        sNaN argument
      [20153] math: [ldbl-128ibm] sqrtl (sNaN) returns sNaN
      [20156] math: [ldbl-128ibm] ceill, rintl etc. return sNaN for sNaN
        argument
      [20157] math: [powerpc] fabsl (sNaN) wrongly raises "invalid"
      [20160] math: [powerpc] ceil, rint etc. return sNaN for sNaN input
      [20178] libc: posix_spawn{p} should not call exit
      [20191] stdio: libio: vtables hardening
      [20195] string: FMA4 detection requires CPUID execution with register
        eax=0x80000001
      [20198] libc: quick_exit incorrectly destroys C++11 thread objects.
      [20205] math: [i386/x86_64] nextafterl incorrect incrementing negative
        subnormals
      [20212] math: acos (sNaN) returns sNaN
      [20213] math: asin (sNaN) returns sNaN
      [20214] network: Linux header sync with linux/in6.h and ipv6.h again.
      [20218] math: [i386] asinhl (sNaN) returns sNaN
      [20219] math: [i386] atanhl (sNaN) returns sNaN
      [20222] stdio: fopencookie: Mangle function pointers
      [20224] math: [i386] cbrtl (sNaN) returns sNaN
      [20225] math: ldexp, scalbn, scalbln return sNaN for sNaN input
      [20226] math: [i386/x86_64] expl, exp10l, expm1l return sNaN for sNaN
        input
      [20227] math: [i386/x86_64] logl (sNaN) returns sNaN
      [20228] math: [i386/x86_64] log10l (sNaN) returns sNaN
      [20229] math: [i386/x86_64] log1pl (sNaN) returns sNaN
      [20232] math: [ldbl-128] expm1l (sNaN) returns sNaN
      [20233] math: [ldbl-128ibm] expm1l (sNaN) returns sNaN
      [20234] math: [ldbl-128ibm] log1pl (sNaN) returns sNaN
      [20235] math: [i386/x86_64] log2l (sNaN) returns sNaN
      [20237] nss: nss_db: get*ent segfaults without preceding set*ent
      [20240] math: modf (sNaN) returns sNaN
      [20248] libc: debug/tst-longjump_chk2 calls printf from a signal handler
      [20250] math: frexp (sNaN) returns sNaN
      [20252] math: atan2 (sNaN, qNaN) fails to raise "invalid"
      [20255] math: [i386] fdim, fdimf return with excess range and precision /
        double rounding
      [20256] math: [i386/x86_64] fdiml returns sNaN for sNaN input
      [20260] string: ../sysdeps/x86/bits/string.h:1092:3: error: array
        subscript is below array bounds [-Werror=array-bounds]
      [20262] nis: _nss_nis_initgroups_dyn always returns NSS_STATUS_NOTFOUND
      [20263] nptl: robust mutex deadlocks if other thread requests timedlock
        (Only arm/linux)
      [20277] libc: $dp is not initialized correctly in sysdeps/hppa/start.S
      [20284] malloc: malloc: Corrupt arena avoidance causes unnecessary mmap
        fallbacks
      [20296] math: [i386/x86_64] scalbl returns sNaN for sNaN input, missing
        "invalid" exceptions
      [20314] nptl: make[4]: *** [/usr/include/stdlib.h] Error 1
      [20316] localedata: id_ID: Februari instead of Pebruari
      [20327] string: POWER8 strcasecmp returns incorrect result
      [20347] math: Failure: Test: j0_downward (0xap+0)
      [20348] libc: FAIL: misc/tst-preadvwritev64
      [20349] libc: 64-bit value is passed differently in p{readv,writev}{64}
      [20350] libc: There is no test for p{read,write}64
      [20357] math: Incorrect cos result for 1.5174239687223976
      [20384] build: Don't run libmvec-sincos-avx* tests on non avx machines
    
    Contributors
    ============
    
    This release was made possible by the contributions of many people.
    The maintainers are grateful to everyone who has contributed
    changes or bug reports.  These include:
    
    Adhemerval Zanella
    Andreas Schwab
    Andrew Senkevich
    Anton Blanchard
    Arnas Udovičius
    Aurelien Jarno
    Carlos Eduardo Seo
    Carlos O'Donell
    Chris Metcalf
    Chung-Lin Tang
    Claude Paroz
    Dimitris Pappas
    Dmitry V. Levin
    Dylan Alex Simon
    Eduardo Trápani
    Florian Weimer
    Gabriel F. T. Gomes
    Gunnar Hjalmarsson
    Gustavo Romero
    Guy Rutenberg
    H.J. Lu
    Hongjiu Zhang
    Jiyoung Yun
    John David Anglin
    Joseph Myers
    Khem Raj
    Maciej W. Rozycki
    Mark Wielaard
    Marko Myllynen
    Martin Galvan
    Matthew Fortune
    Matthias Wallnoefer
    Mike FABIAN
    Mike Frysinger
    Neskie Manuel
    Nick Alcock
    Paras pradhan
    Paul E. Murphy
    Paul Pluzhnikov
    Rajalakshmi Srinivasaraghavan
    Rical Jasan
    Richard Henderson
    Robin van der Vliet
    Roland McGrath
    Samuel Thibault
    Siddhesh Poyarekar
    Simion Onea
    Stefan Liebler
    Stephen Gallagher
    Szabolcs Nagy
    Timur Birsh
    Torvald Riegel
    Tulio Magno Quites Machado Filho
    Wilco Dijkstra
    Will Newton
    Yvan Roux
    Zack Weinberg
    
    
  • glibc-2.23
    The GNU C Library
    =================
    
    The GNU C Library version 2.23 is now available.
    
    The GNU C Library is used as *the* C library in the GNU system and
    in GNU/Linux systems, as well as many other systems that use Linux
    as the kernel.
    
    The GNU C Library is primarily designed to be a portable
    and high performance C library.  It follows all relevant
    standards including ISO C11 and POSIX.1-2008.  It is also
    internationalized and has one of the most complete
    internationalization interfaces known.
    
    The GNU C Library webpage is at http://www.gnu.org/software/libc/
    
    Packages for the 2.23 release may be downloaded from:
            http://ftpmirror.gnu.org/libc/
            http://ftp.gnu.org/gnu/libc/
    
    The mirror list is at http://www.gnu.org/order/ftp.html
    
    NEWS for version 2.23
    =====================
    
    * Unicode 8.0.0 Support: Character encoding, character type info, and
      transliteration tables are all updated to Unicode 8.0.0, using new
      and/or improved generator scripts contributed by Mike FABIAN (Red Hat).
      These updates cause user visible changes, such as the fixes for bugs
      89, 16061, and 18568.
    
    * sched_setaffinity, pthread_setaffinity_np no longer attempt to guess the
      kernel-internal CPU set size.  This means that requests that change the
      CPU affinity which failed before (for example, an all-ones CPU mask) will
      now succeed.  Applications that need to determine the effective CPU
      affinities need to call sched_getaffinity or pthread_getaffinity_np after
      setting it because the kernel can adjust it (and the previous size check
      would not detect this in the majority of cases).
    
    * The fts.h header can now be used with -D_FILE_OFFSET_BITS=64.  With LFS
      the following new symbols are used: fts64_children, fts64_close,
      fts64_open, fts64_read and fts64_set.
    
    * getaddrinfo now detects certain invalid responses on an internal netlink
      socket.  If such responses are received, an affected process will
      terminate with an error message of "Unexpected error <number> on netlink
      descriptor <number>" or "Unexpected netlink response of size <number> on
      descriptor <number>".  The most likely cause for these errors is a
      multi-threaded application which erroneously closes and reuses the netlink
      file descriptor while it is used by getaddrinfo.
    
    * A defect in the malloc implementation, present since glibc 2.15 (2012) or
      glibc 2.10 via --enable-experimental-malloc (2009), could result in the
      unnecessary serialization of memory allocation requests across threads.
      The defect is now corrected.  Users should see a substantial increase in
      the concurent throughput of allocation requests for applications which
      trigger this bug.  Affected applications typically create create and
      destroy threads frequently.  (Bug 19048 was reported and analyzed by
      Ericsson.)
    
    * There is now a --disable-timezone-tools configure option for disabling the
      building and installing of the timezone related utilities (zic, zdump, and
      tzselect).  This is useful for people who build the timezone data and code
      independent of the GNU C Library.
    
    * The obsolete header <regexp.h> has been removed.  Programs that require
      this header must be updated to use <regex.h> instead.
    
    * The obsolete functions bdflush, create_module, get_kernel_syms,
      query_module and uselib are no longer available to newly linked binaries;
      the header <sys/kdaemon.h> has been removed.  These functions and header
      were specific to systems using the Linux kernel and could not usefully be
      used with the GNU C Library on systems with version 2.6 or later of the
      Linux kernel.
    
    * Optimized string, wcsmbs and memory functions for IBM z13.
      Implemented by Stefan Liebler.
    
    * Newly linked programs that define a variable called signgam will no longer
      have it set by the lgamma, lgammaf and lgammal functions.  Programs that
      require signgam to be set by those functions must ensure that they use the
      variable provided by the GNU C Library and declared in <math.h>, without
      defining their own copy.
    
    * The minimum GCC version that can be used to build this version of the GNU
      C Library is GCC 4.7.  Older GCC versions, and non-GNU compilers, can
      still be used to compile programs using the GNU C Library.
    
    Security related changes:
    
    * An out-of-bounds value in a broken-out struct tm argument to strftime no
      longer causes a crash.  Reported by Adam Nielsen.  (CVE-2015-8776)
    
    * The LD_POINTER_GUARD environment variable can no longer be used to disable
      the pointer guard feature.  It is always enabled.  Previously,
      LD_POINTER_GUARD could be used to disable security hardening in binaries
      running in privileged AT_SECURE mode.  Reported by Hector Marco-Gisbert.
      (CVE-2015-8777)
    
    * An integer overflow in hcreate and hcreate_r could lead to an
      out-of-bounds memory access.  Reported by Szabolcs Nagy.  (CVE-2015-8778)
    
    * The catopen function no longer has unbounded stack usage.  Reported by
      Max.  (CVE-2015-8779)
    
    * The nan, nanf and nanl functions no longer have unbounded stack usage
      depending on the length of the string passed as an argument to the
      functions.  Reported by Joseph Myers.  (CVE-2014-9761)
    
    * A stack-based buffer overflow was found in libresolv when invoked from
      libnss_dns, allowing specially crafted DNS responses to seize control
      of execution flow in the DNS client.  The buffer overflow occurs in
      the functions send_dg (send datagram) and send_vc (send TCP) for the
      NSS module libnss_dns.so.2 when calling getaddrinfo with AF_UNSPEC
      family.  The use of AF_UNSPEC triggers the low-level resolver code to
      send out two parallel queries for A and AAAA.  A mismanagement of the
      buffers used for those queries could result in the response of a query
      writing beyond the alloca allocated buffer created by
      _nss_dns_gethostbyname4_r.  Buffer management is simplified to remove
      the overflow.  Thanks to the Google Security Team and Red Hat for
      reporting the security impact of this issue, and Robert Holiday of
      Ciena for reporting the related bug 18665. (CVE-2015-7547)
    
    The following bugs are resolved with this release:
    
      [89] localedata: Locales nb_NO and nn_NO should transliterate æøå
      [887] math: Math library function "logb" and "nextafter" inconsistent
      [2542] math: Incorrect return from float gamma (-0X1.FA471547C2FE5P+1)
      [2543] math: Incorrect return from float gamma (-0X1.9260DCP+1)
      [2558] math: Incorrect return from double gamma (-0X1.FA471547C2FE5P+1)
      [2898] libc: [improve]  warning: the use  of `mktemp' is dangerous, better
        use `mkstemp'
      [4404] localedata: German translation of "Alarm clock" is misleading
      [6799] math: nextafter() and nexttoward() doen't set errno on
        overflow/underflow errors
      [6803] math: scalb(), scalbln(), scalbn() do not set errno on
        overflow/underflow
      [10432] nis: _nss_nis_setnetgrent assertion failure
      [11460] libc: fts has no LFS support
      [12926] network: getaddrinfo()/make_request() may spin forever
      [13065] nptl: Race condition in pthread barriers
      [13690] nptl: pthread_mutex_unlock potentially cause invalid access
      [14341] dynamic-link: Dynamic linker crash when DT_JMPREL and DT_REL{,A}
        are not contiguous
      [14551] math: [ldbl-128ibm] strtold overflow handling for IBM long double
      [14912] libc: Rename non-installed bits/*.h headers
      [15002] libc: Avoid undefined behavior in posix_fallocate overflow check
      [15367] math: Let gcc use __builtin_isinf
      [15384] math: One constant fewer in ieee754/dbl-64/wordsize-64/s_finite.c
      [15421] math: lgamma wrongly sets signgam for ISO C
      [15470] math: [arm] On ARM llrintl() and llroundl() do not raise
        FE_INVALID with argument out of range
      [15491] math: [i386/x86_64] x86 nearbyint implementations wrongly clear
        all exceptions
      [15786] dynamic-link: ifunc resolver functions can smash function
        arguments
      [15918] math: Unnecessary check for equality in hypotf()
      [16061] localedata: Review / update transliteration data
      [16068] math: [i386/x86_64] x86 and x86_64 fesetenv exclude state they
        should include
      [16141] time: strptime %z offset restriction
      [16171] math: drem should be alias of remainder
      [16296] math: fegetround is pure?
      [16347] math: [ldbl-128ibm] ldbl-128/e_lgammal_r.c may not be suitable.
      [16364] libc: sleep may leave SIGCHLD blocked on sync cancellation on
        GNU/Linux
      [16399] math: [mips] lrint / llrint / lround / llround missing exceptions
      [16415] math: Clean up ldbl-128 / ldbl-128ibm expm1l for large positive
        arguments
      [16422] math: [powerpc] math-float, math-double failing llrint tests with
        "Exception "Inexact" set" on ppc32
      [16495] localedata: nl_NL: date_fmt: shuffle year/month around
      [16517] math: Missing underflow exception from tanf/tan/tanl
      [16519] math: Missing underflow exception from sinhf
      [16520] math: Missing underflow exception from tanhf
      [16521] math: Missing underflow exception from exp2
      [16620] math: [ldbl-128ibm] exp10l spurious overflows / bad directed
        rounding results
      [16734] stdio: fopen calls mmap to allocate its buffer
      [16961] math: nan function incorrect handling of bad sequences
      [16962] math: nan function unbounded stack allocation (CVE-2014-9761)
      [16973] localedata: Fix lang_lib/lang_term as per ISO 639-2
      [16985] locale: localedef: confusing error message when opening output
        fails
      [17118] math: ctanh(INFINITY + 2 * I) returns incorrect value
      [17197] locale: Redundant shift character in iconv conversion output at
        block boundary
      [17243] libc: trunk/posix/execl.c:53: va_args problem ?
      [17244] libc: trunk/sysdeps/unix/sysv/linux/semctl.c:116: va_args muxup ?
      [17250] dynamic-link: static linking breaks nss loading
        (getaddrinfo/getpwnam/etc...)
      [17404] libc: atomic_exchange_rel lacking a barrier on MIPS16, GCC before
        4.7?
      [17441] math: isnan() should use __builtin_isnan() in GCC
      [17514] nptl: Assert failure unlocking ERRORCHECK mutex after timedlock
        (related to lock elision)
      [17787] manual: Exponent on page 324 of the PDF ends prematurely
      [17886] time: strptime should be able to parse "Z" as a timezone with %z
      [17887] time: strptime should be able to parse "+01:00" style timezones
      [17905] libc: catopen() Multiple unbounded stack allocations
        (CVE-2015-8779)
      [18084] libc: backtrace (..., 0) dumps core on x86
      [18086] libc: nice() sets errno to 0 on success
      [18240] libc: hcreate, hcreate_r should fail with ENOMEM if element count
        is too large (CVE-2015-8778)
      [18251] dynamic-link: SONAME missing when audit modules provides path
      [18265] libc: add attributes for wchar string and memory functions
      [18370] math: csqrt missing underflows
      [18421] libc: [hppa] read-only segment has dynamic relocations
      [18472] libc: Obsolete syscall wrappers should be compat symbols
      [18480] libc: hppa glibc miscompilation in sched_setaffinity()
      [18491] localedata: Update tr_TR LC_CTYPE as part of Unicode updates
      [18525] localedata: Remove locale timezone information
      [18560] libc: [powerpc] spurious bits/ipc.h definitions
      [18568] localedata: Update locale data to Unicode 8.0
      [18589] locale: sort-test.sh fails at random
      [18595] math: ctan, ctanh missing underflows
      [18604] libc: assert macro-expands its argument
      [18610] math: S390: fetestexcept() reports any exception if DXC-code
        contains a vector instruction exception.
      [18611] math: j1, jn missing errno setting on underflow
      [18618] localedata: sync Chechen locale definitions with other *_RU
        locales
      [18647] math: powf(-0x1.000002p0, 0x1p30) returns 0 instead of +inf
      [18661] libc: Some x86-64 assembly codes don't align stack to 16 bytes
      [18665] network: In send_dg, the recvfrom function is NOT always using the
        buffer size of a newly created buffer (CVE-2015-7547)
      [18674] libc: [i386] trunk/sysdeps/i386/tst-auditmod3b.c:84: possible
        missing break ?
      [18675] libc: fpathconf(_PC_NAME_MAX) fails against large filesystems for
        32bit processes
      [18681] libc: regexp.h is obsolete and buggy, and should be desupported
      [18699] math: tilegx cproj() for various complex infinities does not yield
        infinity
      [18724] libc: Harden put*ent functions against data injection
      [18743] nptl: PowerPC: findutils testcase fails with --enable-lock-elision
      [18755] build: build errors with -DNDEBUG
      [18757] stdio: fmemopen fails to set errno on failure
      [18778] dynamic-link: ld.so crashes if failed dlopen causes libpthread to
        be forced unloaded
      [18781] libc: openat64 lacks O_LARGEFILE
      [18787] libc: [hppa] sysdeps/unix/sysv/linux/hppa/bits/atomic.h:71:6:
        error: can’t find a register in class ‘R1_REGS’ while reloading ‘asm’
      [18789] math: [ldbl-128ibm] sinhl inaccurate near 0
      [18790] math: [ldbl-128ibm] tanhl inaccurate
      [18795] libc: stpncpy fortification misses buffer lengths that are
        statically too large
      [18796] build: build fails for --disable-mathvec
      [18803] math: hypot missing underflows
      [18820] stdio: fmemopen may leak memory on failure
      [18823] math: csqrt spurious underflows
      [18824] math: fma spurious underflows
      [18825] math: pow missing underflows
      [18857] math: [ldbl-128ibm] nearbyintl wrongly uses signaling comparisons
      [18868] nptl: pthread_barrier_init typo has in-theory-undefined behavior
      [18870] build: sem_open.c fails to compile with missing symbol
        FUTEX_SHARED
      [18872] stdio: Fix memory leak in printf_positional
      [18873] libc: posix_fallocate overflow check ineffective
      [18875] math: Excess precision leads incorrect libm
      [18877] libc: arm: mmap offset regression
      [18887] libc: memory corruption when using getmntent on blank lines
      [18918] localedata: hu_HU: change time to HH:MM:SS format
      [18921] libc: Regression: extraneous stat() and fstat() performed by
        opendir()
      [18928] dynamic-link: LD_POINTER_GUARD is not ignored for privileged
        binaries (CVE-2015-8777)
      [18951] math: tgamma missing underflows
      [18952] math: [ldbl-128/ldbl-128ibm] lgammal spurious "invalid", incorrect
        signgam
      [18953] localedata: lt_LT: change currency symbol to the euro
      [18956] math: powf inaccuracy
      [18961] math: [i386] exp missing underflows
      [18966] math: [i386] exp10 missing underflows
      [18967] math: math.h XSI POSIX namespace (gamma, isnan, scalb)
      [18969] build: multiple string test failures due to missing locale
        dependencies
      [18970] libc: Reference of pthread_setcancelstate in libc.a
      [18977] math: float / long double Bessel functions not in XSI POSIX
      [18980] math: i386 libm functions return with excess range and precision
      [18981] math: i386 scalb*, ldexp return with excess range and precision
      [18982] stdio: va_list and vprintf
      [18985] time: Passing out of range data to strftime() causes a segfault
        (CVE-2015-8776)
      [19003] math: [x86_64] fma4 version of pow inappropriate contraction
      [19007] libc: FAIL: elf/check-localplt with -z now and binutils 2.26
      [19012] locale: iconv_open leaks memory on error path
      [19016] math: clog, clog10 inaccuracy
      [19018] nptl: Mangle function pointers in tls_dtor_list
      [19032] math: [i386] acosh (-qNaN) spurious "invalid" exception
      [19046] math: ldbl-128 / ldbl-128ibm lgamma bad overflow handling
      [19048] malloc: malloc: arena free list can become cyclic, increasing
        contention
      [19049] math: [powerpc] erfc incorrect zero sign
      [19050] math: [powerpc] log* incorrect zero sign
      [19058] math: [x86_64] Link fail with -fopenmp and -flto
      [19059] math: nexttoward overflow incorrect in non-default rounding modes
      [19071] math: ldbl-96 lroundl incorrect just below powers of 2
      [19074] network: Data race in _res_hconf_reorder_addrs
      [19076] math: [ldbl-128ibm] log1pl (-1) wrong sign of infinity
      [19077] math: [ldbl-128ibm] logl (1) incorrect sign of zero result
      [19078] math: [ldbl-128ibm] expl overflow incorrect in non-default
        rounding modes
      [19079] math: dbl-64/wordsize-64 lround based on llround incorrect for
        ILP32
      [19085] math: ldbl-128 lrintl, lroundl missing exceptions for 32-bit long
      [19086] manual: posix_fallocate64 documented argument order is wrong.
      [19088] math: lround, llround missing exceptions close to overflow
        threshold
      [19094] math: lrint, llrint missing exceptions close to overflow threshold
      [19095] math: dbl-64 lrint incorrect for 64-bit long
      [19122] dynamic-link: Unnecessary PLT relocations in librtld.os
      [19124] dynamic-link: ld.so failed to build with older assmebler
      [19125] math: [powerpc32] llroundf, llround incorrect exceptions
      [19129] dynamic-link: [arm] Concurrent lazy TLSDESC resolution can crash
      [19134] math: [powerpc32] lround, lroundf spurious exceptions
      [19137] libc: i386/epoll_pwait.S doesn't support cancellation
      [19143] nptl: Remove CPU set size checking from sched_setaffinity,
        pthread_setaffinity_np
      [19156] math: [ldbl-128] j0l spurious underflows
      [19164] nptl: tst-getcpu fails with many possible CPUs
      [19168] math: math/test-ildoubl and math/test-ldouble failure
      [19174] nptl: PowerPC: TLE enabled pthread mutex performs poorly.
      [19178] dynamic-link: ELF_RTYPE_CLASS_EXTERN_PROTECTED_DATA confuses
        prelink
      [19181] math: [i386/x86_64] fesetenv (FE_DFL_ENV), fesetenv
        (FE_NOMASK_ENV) do not clear SSE exceptions
      [19182] malloc: malloc deadlock between ptmalloc_lock_all and
        _int_new_arena/reused_arena
      [19189] math: [ldbl-128] log1pl (-qNaN) spurious "invalid" exception
      [19201] math: dbl-64 remainder incorrect sign of zero result
      [19205] math: bits/math-finite.h conditions do not match math.h and
        bits/mathcalls.h
      [19209] math: bits/math-finite.h wrongly maps ldexp to scalbn
      [19211] math: lgamma functions do not set signgam for -ffinite-math-only
        for C99-based standards
      [19212] libc: features.h not -Wundef clean
      [19213] math: [i386/x86_64] log* (1) incorrect zero sign for -ffinite-
        math-only
      [19214] libc: Family and model identification for AMD CPU's are incorrect.
      [19219] libc: GLIBC build fails for ia64 with missing __nearbyintl
      [19228] math: [powerpc] nearbyint wrongly clears "inexact", leaves traps
        disabled
      [19235] math: [powerpc64] lround, lroundf, llround, llroundf spurious
        "inexact" exceptions
      [19238] math: [powerpc] round, roundf spurious "inexact" for integer
        arguments
      [19242] libc: strtol incorrect in Turkish locales
      [19243] malloc: reused_arena can pick an arena on the free list, leading
        to an assertion failure and reference count corruption
      [19253] time: tzset() ineffective when temporary TZ did not include DST
        rules
      [19266] math: strtod ("NAN(I)") incorrect in Turkish locales
      [19270] math: [hppa] Shared libm missing __isnanl
      [19285] libc: [hppa] sysdeps/unix/sysv/linux/hppa/bits/mman.h: missing
        MAP_HUGETLB and MAP_STACK defines
      [19313] nptl: Wrong __cpu_mask for x32
      [19347] libc: grantpt: try to force a specific gid even without pt_chown
      [19349] math: [ldbl-128ibm] tanhl inaccurate for small arguments
      [19350] math: [ldbl-128ibm] sinhl spurious overflows
      [19351] math: [ldbl-128ibm] logl inaccurate near 1
      [19363] time: x32: times() return value wrongly truncates/sign extends
        from 32bit
      [19367] dynamic-link: Improve branch prediction on Silvermont
      [19369] network: Default domain name not reset by res_ninit when "search"
        / "domain" entry is removed from resolv.conf
      [19375] math: powerpc: incorrect results for POWER7 logb with negative
        subnormals
      [19385] localedata: bg_BG: time separator should be colon, not comma
      [19408] libc: linux personality syscall wrapper may erroneously return an
        error on 32-bit architectures
      [19415] libc: dladdr returns wrong names on hppa
      [19432] libc: iconv rejects redundant escape sequences in IBM900, IBM903,
        IBM905, IBM907, and IBM909
      [19439] math: Unix98 isinf and isnan functions conflict with C++11
      [19443] build: build failures with -DDEBUG
      [19451] build: Make check fails on test-double-vlen2
      [19462] libc: Glibc failed to build with -Os
      [19465] math: Wrong code with -Os
      [19466] time: time/tst-mktime2.c is compiled into an infinite loop with
        -Os
      [19467] string: Fast_Unaligned_Load needs to be enabled for Excavator core
        CPU's.
      [19475] libc: Glibc 2.22 doesn't build on sparc [PATCH]
      [19486] math: S390: Math tests fail with "Exception Inexact set".
      [19529] libc: [ARM]: FAIL: stdlib/tst-makecontext
      [19550] libc: [mips] mmap negative offset handling inconsistent with other
        architectures
      [19590] math: Fail to build shared objects that use libmvec.so functions.
    
    Contributors
    ============
    
    This release was made possible by the contributions of many people.
    The maintainers are grateful to everyone who has contributed
    changes or bug reports.  These include:
    
    Adhemerval Zanella
    Alan Modra
    Amit Pawar
    Andreas Schwab
    Andrew Bennett
    Andrew Senkevich
    Andrew Stubbs
    Anton Blanchard
    Arjun Shankar
    Arslanbek Astemirov
    Aurelien Jarno
    Brett Neumeier
    Carlos Eduardo Seo
    Carlos O'Donell
    Chris Metcalf
    Chung-Lin Tang
    Damyan Ivanov
    Daniel Marjamäki
    David Kastrup
    David Lamparter
    David S. Miller
    Dmitry V. Levin
    Egmont Koblinger
    Evert
    Flavio Cruz
    Florian Weimer
    Gabriel F. T. Gomes
    Geoffrey Thomas
    Gleb Fotengauer-Malinovskiy
    Gunnar Hjalmarsson
    H.J. Lu
    Helge Deller
    James Perkins
    John David Anglin
    Joseph Myers
    Justus Winter
    Khem Raj
    Ludovic Courtès
    Maciej W. Rozycki
    Manolis Ragkousis
    Marcin Kościelnicki
    Mark Wielaard
    Marko Myllynen
    Martin Sebor
    Maxim Ostapenko
    Mike FABIAN
    Mike Frysinger
    Namhyung Kim
    Ondrej Bilka
    Ondřej Bílka
    Paul E. Murphy
    Paul Eggert
    Paul Murphy
    Paul Pluzhnikov
    Petar Jovanovic
    Phil Blundell
    Rajalakshmi Srinivasaraghavan
    Rasmus Villemoes
    Richard Henderson
    Rob Wu
    Roland McGrath
    Samuel Thibault
    Siddhesh Poyarekar
    Stan Shebs
    Stefan Liebler
    Steve Ellcey
    Szabolcs Nagy
    Thomas Schwinge
    Torvald Riegel
    Tulio Magno Quites Machado Filho
    Vincent Bernat
    Wilco Dijkstra
    Zack Weinberg
    
    
  • glibc-2.22
    The GNU C Library
    =================
    
    The GNU C Library version 2.22 is now available.
    
    The GNU C Library is used as *the* C library in the GNU system and
    in GNU/Linux systems, as well as many other systems that use Linux
    as the kernel.
    
    The GNU C Library is primarily designed to be a portable
    and high performance C library.  It follows all relevant
    standards including ISO C11 and POSIX.1-2008.  It is also
    internationalized and has one of the most complete
    internationalization interfaces known.
    
    The GNU C Library webpage is at http://www.gnu.org/software/libc/
    
    Packages for the 2.22 release may be downloaded from:
            http://ftpmirror.gnu.org/libc/
            http://ftp.gnu.org/gnu/libc/
    
    The mirror list is at http://www.gnu.org/order/ftp.html
    
    NEWS for version 2.22
    =====================
    
    * The following bugs are resolved with this release:
    
      438, 4719, 6544, 6792, 11216, 12836, 13028, 13064, 13151, 13152, 14094,
      14292, 14841, 14906, 14958, 15319, 15467, 15790, 15969, 16159, 16339,
      16350, 16351, 16352, 16353, 16361, 16512, 16526, 16538, 16559, 16560,
      16704, 16783, 16850, 17053, 17090, 17195, 17269, 17293, 17322, 17403,
      17475, 17523, 17542, 17569, 17581, 17588, 17596, 17620, 17621, 17628,
      17631, 17692, 17711, 17715, 17776, 17779, 17792, 17833, 17836, 17841,
      17912, 17916, 17930, 17932, 17944, 17949, 17964, 17965, 17967, 17969,
      17977, 17978, 17987, 17991, 17996, 17998, 17999, 18007, 18019, 18020,
      18029, 18030, 18032, 18034, 18036, 18038, 18039, 18042, 18043, 18046,
      18047, 18049, 18068, 18080, 18093, 18100, 18104, 18110, 18111, 18116,
      18125, 18128, 18134, 18138, 18185, 18196, 18197, 18206, 18210, 18211,
      18217, 18219, 18220, 18221, 18234, 18244, 18245, 18247, 18287, 18319,
      18324, 18333, 18346, 18371, 18383, 18397, 18400, 18409, 18410, 18412,
      18418, 18422, 18434, 18444, 18457, 18468, 18469, 18470, 18479, 18483,
      18495, 18496, 18497, 18498, 18502, 18507, 18508, 18512, 18513, 18519,
      18520, 18522, 18527, 18528, 18529, 18530, 18532, 18533, 18534, 18536,
      18539, 18540, 18542, 18544, 18545, 18546, 18547, 18549, 18553, 18557,
      18558, 18569, 18583, 18585, 18586, 18592, 18593, 18594, 18602, 18612,
      18613, 18619, 18633, 18641, 18643, 18648, 18657, 18676, 18694, 18696.
    
    * Cache information can be queried via sysconf() function on s390 e.g. with
      _SC_LEVEL1_ICACHE_SIZE as argument.
    
    * A buffer overflow in gethostbyname_r and related functions performing DNS
      requests has been fixed.  If the NSS functions were called with a
      misaligned buffer, the buffer length change due to pointer alignment was
      not taken into account.  This could result in application crashes or,
      potentially arbitrary code execution, using crafted, but syntactically
      valid DNS responses.  (CVE-2015-1781)
    
    * The time zone file parser has been made more robust against crafted time
      zone files, avoiding heap buffer overflows related to the processing of
      the tzh_ttisstdcnt and tzh_ttisgmtcnt fields, and a stack overflow due to
      large time zone data files.  Overly long time zone specifiers in the TZ
      variable no longer result in stack overflows and crashes.
    
    * A powerpc and powerpc64 optimization for TLS, similar to TLS descriptors
      for LD and GD on x86 and x86-64, has been implemented.  You will need
      binutils-2.24 or later to enable this optimization.
    
    * Character encoding and ctype tables were updated to Unicode 7.0.0, using
      new generator scripts contributed by Pravin Satpute and Mike FABIAN (Red
      Hat).  These updates cause user visible changes, such as the fix for bug
      17998.
    
    * CVE-2014-8121 The NSS backends shared internal state between the getXXent
      and getXXbyYY NSS calls for the same database, causing a denial-of-service
      condition in some applications.
    
    * Added vector math library named libmvec with the following vectorized x86_64
      implementations: cos, cosf, sin, sinf, sincos, sincosf, log, logf, exp, expf,
      pow, powf.
      The library can be disabled with --disable-mathvec. Use of the functions is
      enabled with -fopenmp -ffast-math starting from -O1 for GCC version >= 4.9.0.
      Shared library libmvec.so is linked in as needed when using -lm (no need to
      specify -lmvec explicitly for not static builds).
      Visit <https://sourceware.org/glibc/wiki/libmvec> for detailed information.
    
    * A new fmemopen implementation has been added with the goal of POSIX
      compliance. The new implementation fixes the following long-standing
      issues: BZ#6544, BZ#11216, BZ#12836, BZ#13151, BZ#13152, and BZ#14292. The
      old implementation is still present for use be by existing binaries.
    
    * The 32-bit sparc sigaction ABI was inadvertently broken in the 2.20 and 2.21
      releases.  It has been fixed to match 2.19 and older, but binaries built
      against 2.20 and 2.21 might need to be recompiled.  See BZ#18694.
    
    * Port to Native Client running on ARMv7-A (--host=arm-nacl).
      Contributed by Roland McGrath (Google).
    
    Contributors
    ============
    
    This release was made possible by the contributions of many people.
    The maintainers are grateful to everyone who has contributed
    changes or bug reports.  These include:
    
    Adhemerval Zanella
    Alan Modra
    Alexandre Oliva
    Andreas Schwab
    Andrew Senkevich
    Andriy Rysin
    Arjun Shankar
    Aurelien Jarno
    Benno Schulenberg
    Brad Hubbard
    Carlos O'Donell
    Chris Metcalf
    Christian Schmidt
    Chung-Lin Tang
    Cong Wang
    Cyril Hrubis
    Daniel Marjamäki
    David S. Miller
    Dmitry V. Levin
    Eric Rannaud
    Evangelos Foutras
    Feng Gao
    Florian Weimer
    Gleb Fotengauer-Malinovskiy
    H.J. Lu
    Igor Zamyatin
    J William Piggott
    James Cowgill
    James Lemke
    John David Anglin
    Joseph Myers
    Kevin Easton
    Khem Raj
    Leonhard Holz
    Mark Wielaard
    Marko Myllynen
    Martin Galvan
    Martin Sebor
    Matthew Fortune
    Mel Gorman
    Mike Frysinger
    Miroslav Lichvar
    Nathan Lynch
    Ondřej Bílka
    Paul Eggert
    Paul Pluzhnikov
    Pavel Kopyl
    Pravin Satpute
    Rajalakshmi Srinivasaraghavan
    Rical Jasan
    Richard Henderson
    Roland McGrath
    Rüdiger Sonderfeld
    Samuel Thibault
    Siddhesh Poyarekar
    Stefan Liebler
    Steve Ellcey
    Szabolcs Nagy
    Torvald Riegel
    Tulio Magno Quites Machado Filho
    Vincent Bernat
    Wilco Dijkstra
    Yaakov Selkowitz
    Zack Weinberg
    
  • glibc-2.21
    The GNU C Library
    =================
    
    The GNU C Library version 2.21 is now available.
    
    The GNU C Library is used as *the* C library in the GNU system and
    in GNU/Linux systems, as well as many other systems that use Linux
    as the kernel.
    
    The GNU C Library is primarily designed to be a portable
    and high performance C library.  It follows all relevant
    standards including ISO C11 and POSIX.1-2008.  It is also
    internationalized and has one of the most complete
    internationalization interfaces known.
    
    The GNU C Library webpage is at http://www.gnu.org/software/libc/
    
    Packages for the 2.21 release may be downloaded from:
            http://ftpmirror.gnu.org/libc/
            http://ftp.gnu.org/gnu/libc/
    
    The mirror list is at http://www.gnu.org/order/ftp.html
    
    NEWS for version 2.21
    =====================
    
    * The following bugs are resolved with this release:
    
      6652, 10672, 12674, 12847, 12926, 13862, 14132, 14138, 14171, 14498,
      15215, 15378, 15884, 16009, 16418, 16191, 16469, 16576, 16617, 16618,
      16619, 16657, 16740, 16857, 17192, 17266, 17273, 17344, 17363, 17370,
      17371, 17411, 17460, 17475, 17485, 17501, 17506, 17508, 17522, 17555,
      17570, 17571, 17572, 17573, 17574, 17582, 17583, 17584, 17585, 17589,
      17594, 17601, 17608, 17616, 17625, 17630, 17633, 17634, 17635, 17647,
      17653, 17657, 17658, 17664, 17665, 17668, 17682, 17702, 17717, 17719,
      17722, 17723, 17724, 17725, 17732, 17733, 17744, 17745, 17746, 17747,
      17748, 17775, 17777, 17780, 17781, 17782, 17791, 17793, 17796, 17797,
      17801, 17803, 17806, 17834, 17844, 17848, 17868, 17869, 17870, 17885,
      17892.
    
    * CVE-2015-1472 Under certain conditions wscanf can allocate too little
      memory for the to-be-scanned arguments and overflow the allocated
      buffer.  The implementation now correctly computes the required buffer
      size when using malloc.
    
    * A new semaphore algorithm has been implemented in generic C code for all
      machines. Previous custom assembly implementations of semaphore were
      difficult to reason about or ensure that they were safe. The new version
      of semaphore supports machines with 64-bit or 32-bit atomic operations.
      The new semaphore algorithm is used by sem_init, sem_open, sem_post,
      sem_wait, sem_timedwait, sem_trywait, and sem_getvalue.
    
    * Port to Altera Nios II has been contributed by Mentor Graphics.
    
    * Optimized strcpy, stpcpy, strncpy, stpncpy, strcmp, and strncmp
      implementations for powerpc64/powerpc64le.
      Implemented by Adhemerval Zanella (IBM).
    
    * Added support for TSX lock elision of pthread mutexes on powerpc32, powerpc64
      and powerpc64le.  This may improve lock scaling of existing programs on
      HTM capable systems.  The lock elision code is only enabled with
      --enable-lock-elision=yes.  Also, the TSX lock elision implementation for
      powerpc will issue a transaction abort on every syscall to avoid side
      effects being visible outside transactions.
    
    * Optimized strcpy, stpcpy, strchrnul and strrchr implementations for
      AArch64.  Contributed by ARM Ltd.
    
    * i386 memcpy functions optimized with SSE2 unaligned load/store.
    
    * CVE-2104-7817 The wordexp function could ignore the WRDE_NOCMD flag
      under certain input conditions resulting in the execution of a shell for
      command substitution when the applicaiton did not request it. The
      implementation now checks WRDE_NOCMD immediately before executing the
      shell and returns the error WRDE_CMDSUB as expected.
    
    * CVE-2012-3406 printf-style functions could run into a stack overflow when
      processing format strings with a large number of format specifiers.
    
    * CVE-2014-9402 The nss_dns implementation of getnetbyname could run into an
      infinite loop if the DNS response contained a PTR record of an unexpected
      format.
    
    * The minimum GCC version that can be used to build this version of the GNU
      C Library is GCC 4.6.  Older GCC versions, and non-GNU compilers, can
      still be used to compile programs using the GNU C Library.
    
    * The GNU C Library is now built with -Werror by default.  This can be
      disabled by configuring with --disable-werror.
    
    * New locales: tu_IN, bh_IN, raj_IN, ce_RU.
    
    * The obsolete sigvec function has been removed.  This was the original
      4.2BSD interface that inspired the POSIX.1 sigaction interface, which
      programs have been using instead for about 25 years.  Of course, ABI
      compatibility for old binaries using sigvec remains intact.
    
    * Merged gettext 0.19.3 into the intl subdirectory.  This fixes building
      with newer versions of bison.
    
    * Support for MIPS o32 FPXX, FP64A and FP64 ABI Extensions.
      The original MIPS o32 hard-float ABI requires an FPU where double-precision
      registers overlay two consecutive single-precision registers.  MIPS32R2
      introduced a new FPU mode (FR=1) where double-precision registers extend the
      corresponding single-precision registers which is incompatible with the
      o32 hard-float ABI.  The MIPS SIMD ASE and the MIPSR6 architecture both
      require the use of FR=1 making a transition necessary.  New o32 ABI
      extensions enable users to migrate over time from the original o32 ABI
      through to the updated o32 FP64 ABI.  To achieve this the dynamic linker now
      tracks the ABI of any loaded object and verifies that new objects are
      compatible.  Mode transitions will also be requested as required and
      unsupportable objects will be rejected.  The ABI checks include both soft and
      hard float ABIs for o32, n32 and n64.
    
      GCC 5 with GNU binutils 2.25 onwards:
      It is strongly recommended that all o32 system libraries are built using the
      new o32 FPXX ABI (-mfpxx) to facilitate the transition as this is compatible
      with the original and all new o32 ABI extensions.  Configure a MIPS GCC
      compiler using --with-fp-32=xx to set this by default.
    
    Contributors
    ============
    
    This release was made possible by the contributions of many people.
    The maintainers are grateful to everyone who has contributed
    changes or bug reports.  These include:
    
    Adhemerval Zanella
    Alan Hayward
    Alexandre Oliva
    Allan McRae
    Anders Kaseorg
    Andreas Krebbel
    Andreas Schwab
    Andrew Pinski
    Andrew Senkevich
    Anton Blanchard
    Arjun Shankar
    Aurelien Jarno
    Bram
    Brooks Moses
    Carlos O'Donell
    Chris Metcalf
    Chung-Lin Tang
    David Holsgrove
    David S. Miller
    Eric Biggers
    Florian Weimer
    Gratian Crisan
    H.J. Lu
    J. Brown
    James Lemke
    Jeff Law
    Jose E. Marchesi
    Joseph Myers
    Kaz Kojima
    Kostya Serebryany
    Leonhard Holz
    Ma Shimiao
    Maciej W. Rozycki
    Marcus Shawcroft
    Marek Polacek
    Martin Sebor
    Matthew Fortune
    Mike Frysinger
    Ondřej Bílka
    Paul Eggert
    Paul Pluzhnikov
    Petar Jovanovic
    Pravin Satpute
    Rajalakshmi Srinivasaraghavan
    Rasmus Villemoes
    Renlin Li
    Richard Earnshaw
    Richard Henderson
    Roland McGrath
    Ryan Cumming
    Samuel Thibault
    Siddhesh Poyarekar
    Stefan Liebler
    Steve Ellcey
    Tatiana Udalova
    Tim Lammens
    Tom de Vries
    Torvald Riegel
    Vladimir A. Nazarenko
    Wilco Dijkstra
    Will Newton
    
  • glibc-2.20
    The GNU C Library
    =================
    
    The GNU C Library version 2.20 is now available.
    
    The GNU C Library is used as *the* C library in the GNU systems
    and is widely used on systems with the Linux kernel.
    
    The GNU C Library is primarily designed to be a portable
    and high performance C library.  It follows all relevant
    standards including ISO C11 and POSIX.1-2008.  It is also
    internationalized and has one of the most complete
    internationalization interfaces known.
    
    The GNU C Library webpage is at http://www.gnu.org/software/libc/
    
    Packages for the 2.20 release may be downloaded from:
            http://ftpmirror.gnu.org/libc/
            http://ftp.gnu.org/gnu/libc/
    
    The mirror list is at http://www.gnu.org/order/ftp.html
    
    NEWS for version 2.20
    ====================
    
    * The following bugs are resolved with this release:
    
      6804, 9894, 12994, 13347, 13651, 14308, 14770, 15119, 15132, 15347, 15514,
      15698, 15804, 15894, 15946, 16002, 16064, 16095, 16194, 16198, 16275,
      16284, 16287, 16315, 16348, 16349, 16354, 16357, 16362, 16447, 16516,
      16532, 16539, 16545, 16561, 16562, 16564, 16574, 16599, 16600, 16609,
      16610, 16611, 16613, 16619, 16623, 16629, 16632, 16634, 16639, 16642,
      16648, 16649, 16670, 16674, 16677, 16680, 16681, 16683, 16689, 16695,
      16701, 16706, 16707, 16712, 16713, 16714, 16724, 16731, 16739, 16740,
      16743, 16754, 16758, 16759, 16760, 16770, 16786, 16789, 16791, 16796,
      16799, 16800, 16815, 16823, 16824, 16831, 16838, 16839, 16849, 16854,
      16876, 16877, 16878, 16882, 16885, 16888, 16890, 16892, 16912, 16915,
      16916, 16917, 16918, 16922, 16927, 16928, 16932, 16943, 16958, 16965,
      16966, 16967, 16977, 16978, 16984, 16990, 16996, 17009, 17022, 17031,
      17042, 17048, 17050, 17058, 17061, 17062, 17069, 17075, 17078, 17079,
      17084, 17086, 17088, 17092, 17097, 17125, 17135, 17137, 17150, 17153,
      17187, 17213, 17259, 17261, 17262, 17263, 17319, 17325, 17354.
    
    * Reverted change of ABI data structures for s390 and s390x:
      On s390 and s390x the size of struct ucontext and jmp_buf was increased in
      2.19. This change is reverted in 2.20. The introduced 2.19 symbol versions
      of getcontext, setjmp, _setjmp, __sigsetjmp, longjmp, _longjmp, siglongjmp
      are preserved pointing straight to the same implementation as the old ones.
      Given that, new callers will simply provide a too-big buffer to these
      functions. Any applications/libraries out there that embed jmp_buf or
      ucontext_t in an ABI-relevant data structure that have already been rebuilt
      against 2.19 headers will have to rebuilt again. This is necessary in any
      case to revert the breakage in their ABI caused by the glibc change.
    
    * Support for file description locks is added to systems running the
      Linux kernel. The standard file locking interfaces are extended to
      operate on file descriptions, not file descriptors, via the use of
      F_OFD_GETLK, F_OFD_SETLK, and F_OFD_SETLKW. File description locks
      are associated with an open file instead of a process.
    
    * Optimized strchr implementation for AArch64.  Contributed by ARM Ltd.
    
    * The minimum Linux kernel version that this version of the GNU C Library
      can be used with is 2.6.32.
    
    * Running the testsuite no longer terminates as soon as a test fails.
      Instead, a file tests.sum (xtests.sum from "make xcheck") is generated,
      with PASS or FAIL lines for individual tests.  A summary of the results is
      printed, including a list of failing lists, and "make check" exits with
      error status if there were any unexpected failures.  "make check
      stop-on-test-failure=y" may be used to keep the old behavior.
    
    * The am33 port, which had not worked for several years, has been removed
      from ports.
    
    * The _BSD_SOURCE and _SVID_SOURCE feature test macros are no longer
      supported; they now act the same as _DEFAULT_SOURCE (but generate a
      warning).  Except for cases where _BSD_SOURCE enabled BSD interfaces that
      conflicted with POSIX (support for which was removed in 2.19), the
      interfaces those macros enabled remain available when compiling with
      _GNU_SOURCE defined, with _DEFAULT_SOURCE defined, or without any feature
      test macros defined.
    
    * Optimized strcmp implementation for ARMv7.  Contributed by ARM Ltd.
    
    * Added support for TX lock elision of pthread mutexes on s390 and s390x.
      This may improve lock scaling of existing programs on TX capable systems.
      The lock elision code is only built with --enable-lock-elision=yes and
      then requires a GCC version supporting the TX builtins.  With lock elision
      default mutexes are elided via __builtin_tbegin, if the cpu supports
      transactions. By default lock elision is not enabled and the elision code
      is not built.
    
    * CVE-2014-4043 The posix_spawn_file_actions_addopen implementation did not
      copy the path argument.  This allowed programs to cause posix_spawn to
      deference a dangling pointer, or use an unexpected pathname argument if
      the string was modified after the posix_spawn_file_actions_addopen
      invocation.
    
    * All supported architectures now use the main glibc sysdeps directory
      instead of some being in a separate "ports" directory (which was
      distributed separately before glibc 2.17).
    
    * The NPTL implementation of POSIX pthreads is no longer an "add-on".
      On configurations that support it (all Linux configurations), it's now
      used regardless of the --enable-add-ons switch to configure.  It is no
      longer possible to build such configurations without pthreads support.
    
    * Locale names, including those obtained from environment variables (LANG
      and the LC_* variables), are more tightly checked for proper syntax.
      setlocale will now fail (with EINVAL) for locale names that are overly
      long, contain slashes without starting with a slash, or contain ".." path
      components. (CVE-2014-0475)  Previously, some valid locale names were
      silently replaced with the "C" locale when running in AT_SECURE mode
      (e.g., in a SUID program).  This is no longer necessary because of the
      additional checks.
    
    * On x86-64, the dynamic linker's lazy-binding support is now compatible
      with application code using Intel MPX instructions.  (With all previous
      versions, the MPX register state could be clobbered when making calls
      into or out of a shared library.)  Note that while the new dynamic
      linker is compatible with all known x86 hardware whether or not it
      supports Intel MPX, some x86 instruction-set emulators might fail to
      handle the new instruction encodings.  This is known to affect Valgrind
      versions up through 3.9 (but will be fixed in the forthcoming 3.10
      release), and might affect other tools that do instruction emulation.
    
    * Support for loadable gconv transliteration modules has been removed.
      The support for transliteration modules has been non-functional for
      over a decade, and the removal is prompted by security defects.  The
      normal gconv conversion modules are still supported.  Transliteration
      with //TRANSLIT is still possible, and the //IGNORE specifier
      continues to be  supported. (CVE-2014-5119)
    
    * Decoding a crafted input sequence in the character sets IBM933, IBM935,
      IBM937, IBM939, IBM1364 could result in an out-of-bounds array read,
      resulting a denial-of-service security vulnerability in applications which
      use functions related to iconv. (CVE-2014-6040)
    
    Contributors
    ============
    
    This release was made possible by the contributions of many people.
    The maintainers are grateful to everyone who has contributed
    changes or bug reports.  These include:
    
    Adam Conrad
    Adhemerval Zanella
    Alan Modra
    Allan McRae
    Andi Kleen
    Andreas Krebbel
    Andreas Schwab
    Arjun Shankar
    Aurelien Jarno
    Bernard Ogden
    Carlos O'Donell
    Chris Metcalf
    David Holsgrove
    David S. Miller
    David Svoboda
    Dominik Vogt
    Dylan Alex Simon
    Eric Wong
    Florian Weimer
    Guo Yixuan
    H.J. Lu
    Ian Bolton
    Igor Zamyatin
    Jeff Layton
    Jim Meyering
    Joey Ye
    Jose E. Marchesi
    Joseph Anthony Pasquale Holsten
    Joseph Myers
    Julian Brown
    Khem Raj
    Konstantin Serebryany
    Kyle McMartin
    Ling Ma
    Ludovic Courtès
    Maciej W. Rozycki
    Marcus Shawcroft
    Mark Wielaard
    Marko Myllynen
    Meador Inge
    Mike Frysinger
    Ondřej Bílka
    Paul Eggert
    Paul Pluzhnikov
    Peter TB Brett
    Rajalakshmi Srinivasaraghavan
    Rasmus Villemoes
    Richard Earnshaw
    Richard Henderson
    Roland McGrath
    Sami Kerola
    Samuel Thibault
    Sean Anderson
    Serge Hallyn
    Siddhesh Poyarekar
    Sihai Yao
    Stefan Liebler
    Steve Ellcey
    Tomas Dohnalek
    Torvald Riegel
    Venkataramanan Kumar
    Vidya Ranganathan
    Wilco
    Wilco Dijkstra
    Will Newton
    Yang Yingliang
    Yufeng Zhang
    Yury Gribov
    Yvan Roux
    
  • glibc-2.19
    The GNU C Library
    =================
    
    The GNU C Library version 2.19 is now available.
    
    The GNU C Library is used as *the* C library in the GNU systems
    and most systems with the Linux kernel.
    
    The GNU C Library is primarily designed to be a portable
    and high performance C library.  It follows all relevant
    standards including ISO C11 and POSIX.1-2008.  It is also
    internationalized and has one of the most complete
    internationalization interfaces known.
    
    The GNU C Library webpage is at http://www.gnu.org/software/libc/
    
    Packages for the 2.19 release may be downloaded from:
            http://ftpmirror.gnu.org/libc/
            http://ftp.gnu.org/gnu/libc/
    
    The mirror list is at http://www.gnu.org/order/ftp.html
    
    NEWS for version 2.19
    =====================
    
    * The following bugs are resolved with this release:
    
      156, 387, 431, 762, 832, 926, 2801, 4772, 6786, 6787, 6807, 6810, 6981,
      7003, 9721, 9954, 10253, 10278, 11087, 11157, 11214, 12100, 12486, 12751,
      12986, 13028, 13982, 13985, 14029, 14032, 14120, 14143, 14155, 14286,
      14547, 14699, 14752, 14782, 14876, 14910, 15004, 15048, 15073, 15089,
      15128, 15218, 15268, 15277, 15308, 15362, 15374, 15400, 15425, 15427,
      15483, 15522, 15531, 15532, 15593, 15601, 15608, 15609, 15610, 15632,
      15640, 15670, 15672, 15680, 15681, 15723, 15734, 15735, 15736, 15748,
      15749, 15754, 15760, 15763, 15764, 15797, 15799, 15825, 15843, 15844,
      15846, 15847, 15849, 15850, 15855, 15856, 15857, 15859, 15867, 15886,
      15887, 15890, 15892, 15893, 15895, 15897, 15901, 15905, 15909, 15915,
      15917, 15919, 15921, 15923, 15939, 15941, 15948, 15963, 15966, 15968,
      15985, 15988, 15997, 16032, 16034, 16036, 16037, 16038, 16041, 16046,
      16055, 16071, 16072, 16074, 16077, 16078, 16103, 16112, 16143, 16144,
      16146, 16150, 16151, 16153, 16167, 16169, 16172, 16195, 16214, 16245,
      16271, 16274, 16283, 16289, 16293, 16314, 16316, 16330, 16337, 16338,
      16356, 16365, 16366, 16369, 16372, 16375, 16379, 16384, 16385, 16386,
      16387, 16390, 16394, 16398, 16400, 16407, 16408, 16414, 16430, 16431,
      16453, 16474, 16506, 16510, 16529
    
    * Slovenian translations for glibc messages have been contributed by the
      Translation Project's Slovenian team of translators.
    
    * The public headers no longer use __unused nor __block.  This change is to
      support compiling programs that are derived from BSD sources and use
      __unused internally, and to support compiling with Clang's -fblock
      extension which uses __block.
    
    * CVE-2012-4412 The strcoll implementation caches indices and rules for
      large collation sequences to optimize multiple passes.  This cache
      computation may overflow for large collation sequences and may cause a
      stack or buffer overflow.  This is now fixed to use a slower algorithm
      which does not use a cache if there is an integer overflow.
    
    * CVE-2012-4424 The strcoll implementation uses malloc to cache indices and
      rules for large collation sequences to optimize multiple passes and falls
      back to alloca if malloc fails, resulting in a possible stack overflow.
      The implementation now falls back to an uncached collation sequence lookup
      if malloc fails.
    
    * CVE-2013-4788 The pointer guard used for pointer mangling was not
      initialized for static applications resulting in the security feature
      being disabled. The pointer guard is now correctly initialized to a
      random value for static applications. Existing static applications need
      to be recompiled to take advantage of the fix (bug 15754).
    
    * CVE-2013-4237 The readdir_r function could write more than NAME_MAX bytes
      to the d_name member of struct dirent, or omit the terminating NUL
      character.  (Bugzilla #14699).
    
    * CVE-2013-4332 The pvalloc, valloc, memalign, posix_memalign and
      aligned_alloc functions could allocate too few bytes or corrupt the
      heap when passed very large allocation size values (Bugzilla #15855,
      #15856, #15857).
    
    * CVE-2013-4458 Stack overflow in getaddrinfo with large number of results
      for AF_INET6 has been fixed (Bugzilla #16072).
    
    * New locales: ak_GH, anp_IN, ar_SS, cmn_TW, hak_TW, lzh_TW, nan_TW, pap_AW,
      pap_CW, quz_PE, the_NP.
    
    * Substantially revised locales: gd_GB, ht_HT
    
    * The LC_ADDRESS field was updated to support country_car for almost all
      supported locales.
    
    * ISO 1427 definitions were updated.
    
    * ISO 3166 definitions were updated.
    
    * The localedef utility now supports --big-endian and --little-endian
      command-line options to generate locales for a different system from that
      for which the C library was built.
    
    * Binary locale files now only depend on the endianness of the system for
      which they are generated and not on other properties of that system.  As a
      consequence, binary files generated with new localedef may be incompatible
      with old versions of the GNU C Library, and binary files generated with
      old localedef may be incompatible with this version of the GNU C Library,
      in the following circumstances:
    
      + Locale files may be incompatible on m68k systems.
    
      + Locale archive files (but not separate files for individual locales) may
        be incompatible on systems where plain "char" is signed.
    
    * The configure option --disable-versioning has been removed.  Builds with
      --disable-versioning had not worked for several years.
    
    * ISO 639 definitions were updated for Chiga (cgg) and Chinese (gan, hak, czh,
      cjy, lzh, cmn, mnp, cdo, czo, cpx, wuu, hsn, yue).
    
    * SystemTap probes for malloc have been introduced.
    
    * SystemTap probes for slow multiple precision fallback paths of
      transcendental functions have been introduced.
    
    * Support for powerpc64le has been added.
    
    * The soft-float powerpc port now supports e500 processors.
    
    * Support for STT_GNU_IFUNC symbols added for ppc32/power4+ and ppc64.
    
    * A new feature test macro _DEFAULT_SOURCE is available to enable the same
      set of header declarations that are enabled by default, even when other
      feature test macros or compiler options such as -std=c99 would otherwise
      disable some of those declarations.
    
    * The _BSD_SOURCE feature test macro no longer enables BSD interfaces that
      conflict with POSIX.  The libbsd-compat library (which was a dummy library
      that did nothing) has also been removed.
    
    * Preliminary documentation about Multi-Thread, Async-Signal and
      Async-Cancel Safety has been added.
    
    Contributors
    ============
    
    This release was made possible by the contributions of many people.
    The maintainers are grateful to everyone who has contributed
    changes or bug reports.  These include:
    
    Adam Buchbinder
    Adam Conrad
    Adhemerval Zanella
    Alan Modra
    Alexandre Oliva
    Allan McRae
    Andreas Arnez
    Andreas Jaeger
    Andreas Krebbel
    Andreas Schwab
    Andrew Hunter
    Andrew Pinski
    Anton Blanchard
    Arun Kumar Pyasi
    Aurelien Jarno
    Brooks Moses
    Bruno Haible
    Carlos O'Donell
    Chris Leonard
    Chris Metcalf
    Chung-Lin Tang
    David Holsgrove
    David S. Miller
    Eric Biggers
    Eric Blake
    Eric Wong
    Fabrice Bauzac
    Fernando J. V. da Silva
    Florian Weimer
    Guy Martin
    H.J. Lu
    Jan Kratochvil
    Jia Liu
    Joseph Myers
    Kaz Kojima
    Liubov Dmitrieva
    Maciej W. Rozycki
    Marc-Antoine Perennou
    Marcus Shawcroft
    Marko Myllynen
    Markus Trippelsdorf
    Maxim Kuvyrkov
    Meador Inge
    Michael Bauer
    Michael Stahl
    Mike Frysinger
    Olivier Langlois
    Ondřej Bílka
    Patrick 'P. J.' McDermott
    Paul Eggert
    Paul Pluzhnikov
    Pavel Simerda
    Petr Machata
    Rajalakshmi Srinivasaraghavan
    Reuben Thomas
    Richard Henderson
    Richard Sandiford
    Roland McGrath
    Ryan S. Arnold
    Sami Kerola
    Samuel Thibault
    Siddhesh Poyarekar
    Stefan Liebler
    Steve Ellcey
    Thomas Schwinge
    Toke Høiland-Jørgensen
    Tom Tromey
    Torvald Riegel
    Ulrich Weigand
    Uros Bizjak
    Venkataramanan Kumar
    Ville Skytta
    Vinitha Vijayan
    Wei-Lun Chao
    Will Newton
    Yogesh Chaudhari
    Yuri Chornoivan
    Yuriy Kaminskiy
    
  • glibc-2.18
    The GNU C Library
    =================
    
    The GNU C Library version 2.18 is now available.
    
    The GNU C Library is used as *the* C library in the GNU systems
    and most systems with the Linux kernel.
    
    The GNU C Library is primarily designed to be a portable
    and high performance C library.  It follows all relevant
    standards including ISO C11 and POSIX.1-2008.  It is also
    internationalized and has one of the most complete
    internationalization interfaces known.
    
    The GNU C Library webpage is at http://www.gnu.org/software/libc/
    
    Packages for the 2.18 release may be downloaded from:
            http://ftpmirror.gnu.org/libc/
            http://ftp.gnu.org/gnu/libc/
    
    The mirror list is at http://www.gnu.org/order/ftp.html
    
    NEWS for version 2.18
    ====================
    
    * The following bugs are resolved with this release:
    
      2546, 2560, 5159, 6809, 7006, 10060, 10062, 10283, 10357, 10686, 11120,
      11561, 12310, 12387, 12492, 12515, 12723, 13550, 13889, 13951, 13988,
      14142, 14176, 14200, 14256, 14280, 14293, 14317, 14327, 14478, 14496,
      14582, 14686, 14812, 14888, 14894, 14907, 14908, 14909, 14920, 14952,
      14964, 14981, 14982, 14985, 14991, 14994, 14996, 15000, 15003, 15006,
      15007, 15014, 15020, 15022, 15023, 15036, 15054, 15055, 15062, 15078,
      15084, 15085, 15086, 15100, 15160, 15214, 15221, 15232, 15234, 15283,
      15285, 15287, 15304, 15305, 15307, 15309, 15327, 15330, 15335, 15336,
      15337, 15339, 15342, 15346, 15359, 15361, 15366, 15380, 15381, 15394,
      15395, 15405, 15406, 15409, 15416, 15418, 15419, 15423, 15424, 15426,
      15429, 15431, 15432, 15441, 15442, 15448, 15465, 15480, 15485, 15488,
      15490, 15492, 15493, 15497, 15506, 15529, 15536, 15553, 15577, 15583,
      15618, 15627, 15631, 15654, 15655, 15666, 15667, 15674, 15711, 15755,
      15759.
    
    * CVE-2013-2207 Incorrectly granting access to another user's pseudo-terminal
      has been fixed by disabling the use of pt_chown (Bugzilla #15755).
      Distributions can re-enable building and using pt_chown via the new configure
      option `--enable-pt_chown'.  Enabling the use of pt_chown carries with it
      considerable security risks and should only be used if the distribution
      understands and accepts the risks.
    
    * CVE-2013-0242 Buffer overrun in regexp matcher has been fixed (Bugzilla
      #15078).
    
    * CVE-2013-1914 Stack overflow in getaddrinfo with many results has been
      fixed (Bugzilla #15330).
    
    * Add support for calling C++11 thread_local object destructors on thread
      and program exit.  This needs compiler support for offloading C++11
      destructor calls to glibc.
    
    * Improved worst case performance of libm functions with double inputs and
      output.
    
    * Support for priority inherited mutexes in pthread condition variables on
      non-x86 architectures.
    
    * Port to Xilinx MicroBlaze contributed by David Holsgrove.
    
    * Optimized string functions for AArch64.  Implemented by Marcus Shawcroft.
    
    * Optimized string functions for ARM.  Implemented by Will Newton and
      Richard Henderson.
    
    * Optimized libm functions for SPARC.  Implemented by David S. Miller.
    
    * Support for building more of ARM glibc as Thumb-2 code.  Implemented by
      Richard Henderson.
    
    * Support for building most of MIPS glibc as MIPS16 code.  Implemented by
      Chung-Lin Tang, Maciej W. Rozycki and Maxim Kuvyrkov.
    
    * Added a benchmark framework to track performance of functions in glibc.
    
    * New <math.h> macro named issignaling to check for a signaling NaN (sNaN).
      It is based on draft TS 18661 and currently enabled as a GNU extension.
    
    * On Linux, the clock function now uses the clock_gettime system call
      for improved precision, rather than old times system call.
    
    * Added new API functions pthread_getattr_default_np and
      pthread_setattr_default_np to get and set the default pthread
      attributes of a process.
    
    * Added support for TSX lock elision for pthread mutexes on i386 and x86-64.
      This may improve lock scaling of existing programs on TSX capable systems.
      When the --enable-lock-elision=yes parameter is specified at configure
      time lock elision will be enabled by default for all PTHREAD_MUTEX_DEFAULT
      mutexes.
    
    * Support added for AT_HWCAP2 (to coincide with Linux kernel 3.10
      availability).  Implemented by Ryan S. Arnold.
    
    * Support added for POWER8 platform.  Implemented by Ryan S. Arnold.
    
    Contributors
    ============
    
    This release was made possible by the contributions of many people.
    The maintainers are grateful to everyone who has contributed
    changes or bug reports.  These include:
    
    Adam Conrad
    Adhemerval Zanella
    Alan Modra
    Allan McRae
    Andi Kleen
    Andreas Jaeger
    Andreas Krebbel
    Andreas Schwab
    Anton Blanchard
    Aurelien Jarno
    Ben Norht
    Bruno Haible
    Carlos O'Donell
    Chris Leonard
    Chris Metcalf
    Christian Grönke
    David Holsgrove
    David S. Miller
    Dmitry V. Levin
    Dominik Vogt
    Edjunior Barbosa Machado
    Edjunior Machado
    Florian Weimer
    H.J. Lu
    Heiko Carstens
    Jakub Jelinek
    Jan Kratochvil
    Jan-Benedict Glaw
    Jeff Law
    Jeroen Albers
    Johan Heikkila
    Joseph Myers
    Kaz Kojima
    Kirk Meyer
    Liubov Dmitrieva
    Maciej W. Rozycki
    Mans Rullgard
    Marcus Shawcroft
    Mark H Weaver
    Marko Myllynen
    Markus Trippelsdorf
    Maxim Kuvyrkov
    Mike Frysinger
    Nathan Froyd
    Nathan Sidwell
    Nik Kalach
    Ondrej Bilka
    Patsy Franklin
    Paul Eggert
    Paul Pluzhnikov
    Peter Collingbourne
    Petr Baudis
    Petr Machata
    Pierre Ynard
    Pino Toscano
    Richard Henderson
    Richard Smith
    Roland McGrath
    Ryan S. Arnold
    Siddhesh Poyarekar
    Steve Ellcey
    Thomas Schwinge
    Thorsten Kukuk
    Tom de Vries
    Vladimir Nikulichev
    Will Newton
    
  • glibc-2.17
    The GNU C Library
    =================
    
    The GNU C Library version 2.17 is now available.
    
    The GNU C Library is used as *the* C library in the GNU systems
    and most systems with the Linux kernel.
    
    The GNU C Library is primarily designed to be a portable
    and high performance C library.  It follows all relevant
    standards including ISO C11 and POSIX.1-2008.  It is also
    internationalized and has one of the most complete
    internationalization interfaces known.
    
    The GNU C Library webpage is at http://www.gnu.org/software/libc/
    
    Packages for the 2.17 release may be downloaded from:
            http://ftpmirror.gnu.org/libc/
            http://ftp.gnu.org/gnu/libc/
    
    The mirror list is at http://www.gnu.org/order/ftp.html
    
    NEWS for version 2.17
    ====================
    
    * The following bugs are resolved with this release:
    
      1349, 3439, 3479, 3665, 5044, 5246, 5298, 5400, 6530, 6677, 6778, 6808,
      9685, 9914, 10014, 10038, 10114, 10631, 10873, 11438, 11607, 11638, 11741,
      12140, 13013, 13412, 13542, 13601, 13603, 13604, 13629, 13679, 13696,
      13698, 13717, 13741, 13759, 13761, 13763, 13881, 13939, 13950, 13952,
      13966, 14042, 14047, 14090, 14150, 14151, 14152, 14154, 14157, 14166,
      14173, 14195, 14197, 14237, 14246, 14251, 14252, 14283, 14298, 14303,
      14307, 14328, 14331, 14336, 14337, 14347, 14349, 14368, 14376, 14417,
      14447, 14459, 14476, 14477, 14501, 14505, 14510, 14516, 14518, 14519,
      14530, 14532, 14538, 14543, 14544, 14545, 14557, 14562, 14568, 14576,
      14579, 14583, 14587, 14595, 14602, 14610, 14621, 14638, 14645, 14648,
      14652, 14660, 14661, 14669, 14672, 14683, 14694, 14716, 14719, 14743,
      14767, 14783, 14784, 14785, 14793, 14796, 14797, 14801, 14803, 14805,
      14807, 14811, 14815, 14821, 14822, 14824, 14828, 14831, 14833, 14835,
      14838, 14856, 14863, 14865, 14866, 14868, 14869, 14871, 14872, 14879,
      14889, 14893, 14898, 14914.
    
    * Optimization of memcpy for MIPS.
    
    * CVE-2011-4609 svc_run() produces high cpu usage when accept fails with
      EMFILE has been fixed (Bugzilla #14889).
    
    * The add-on ports collection is now distributed in the "ports" subdirectory
      of the main GNU C Library distribution, rather than separately.
    
    * Port to ARM AArch64 contributed by Linaro.
    
    * Support for STT_GNU_IFUNC symbols added for s390 and s390x.
      Optimized versions of memcpy, memset, and memcmp added for System z10 and
      zEnterprise z196.
      Implemented by Andreas Krebbel.
    
    * The new function secure_getenv allows secure access to the environment,
      returning NULL if running in a SUID/SGID process.  This function replaces
      the internal function __secure_getenv.
    
    * SystemTap static probes have been added into the dynamic linker.
      Implemented by Gary Benson.
    
    * Optimizations of string functions strstr, strcasestr and memmem.
      Implemented by Maxim Kuvyrkov.
    
    * The minimum Linux kernel version that this version of the GNU C Library
      can be used with is 2.6.16.
    
    * Optimizations of string functions memchr, wcschr, wcscpy, and wcsrchr for
      powerpc POWER7.  Implemented by Will Schmidt.
    
    * New configure option --disable-nscd builds the C library such that it
      never attempts to contact the Name Service Caching Daemon (nscd).
      New configure option --disable-build-nscd avoids building nscd itself;
      this is the default if --disable-nscd is used.
    
    * Improved support for cross-compilation, including cross-testing and
      bootstrap builds without a previously built glibc.
    
    * Several testsuite tests are now able to test multiple IFUNC variants of an
      interface, rather than just testing the one that would be chooen by
      default.
    
    * New configure options --with-bugurl and --with-pkgversion, for
      distributors to use to embed their bug-reporting and package version
      information in --help and --version output.
    
    * The ttyname and ttyname_r functions on Linux now fall back to searching for
      the tty file descriptor in /dev/pts or /dev if /proc is not available.  This
      allows creation of chroots without the procfs mounted on /proc.
    
    * The `crypt' function now fails if passed salt bytes that violate the
      specification for those values.  On Linux, the `crypt' function will
      consult /proc/sys/crypto/fips_enabled to determine if "FIPS mode" is
      enabled, and fail on encrypted strings using the MD5 or DES algorithm
      when the mode is enabled.
    
    * The `clock_*' suite of functions (declared in <time.h>) is now available
      directly in the main C library.  Previously it was necessary to link with
      -lrt to use these functions.  This change has the effect that a
      single-threaded program that uses a function such as `clock_gettime' (and
      is not linked with -lrt) will no longer implicitly load the pthreads
      library at runtime and so will not suffer the overheads associated with
      multi-thread support in other code such as the C++ runtime library.
    
    * New locales: ayc_PE, doi_IN, ia_FR, mni_IN, nhn_MX, niu_NU, niu_NZ,
      sat_IN, and szl_PL.
    
    Contributors
    ============
    
    This release was made possible by the contributions of many people.
    The maintainers are grateful to everyone who has contributed
    changes or bug reports.  These include:
    
    Adam Conrad
    Adhemerval Zanella
    Alan Modra
    Alexander Kanevskiy
    Alexandre Oliva
    Allan McRae
    Andreas Jaeger
    Andreas Krebbel
    Andreas Schwab
    Andrej Lajovic
    Andrew Haley
    Andrew Stubbs
    Aurelien Jarno
    Benno Schulenberg
    Brendan Kehoe
    Carlos O'Donell
    Chandrakala Chavva
    Chris Leonard
    Chris Metcalf
    Daniel Gutson
    Daniel Jacobowitz
    David Alan Gilbert
    David S. Miller
    Dmitry V. Levin
    Eagle Burkut
    Florian Pritz
    Florian Weimer
    GOTO Masanori
    Gary Benson
    Greg McGary
    Guido Guenther
    H.J. Lu
    Jakub Jelinek
    Jeff Bailey
    Jeff Law
    Jeroen van Bemmel
    Jim Blandy
    Jim Meyering
    John Tobey
    Jonathan Nieder
    Joseph Myers
    Julian Brown
    Ken Werner
    Khem Raj
    Konstantinos Margaritis
    Liubov Dmitrieva
    Luis Machado
    Manjunath Matti
    Marcus Shawcroft
    Marek Polacek
    Mark Salter
    Marko Myllynen
    Markus Trippelsdorf
    Matt Turner
    Maxim Kuvyrkov
    Michael Cree
    Michael Hope
    Mike Frysinger
    Mike Hommey
    Mischa Jonker
    Nathan Froyd
    Nathan Sidwell
    Nik Kalach
    Paul Brook
    Paul Eggert
    Peng Haitao
    Petar Jovanovic
    Peter Green
    Petr Machata
    Phil Blundell
    Philip Blundell
    Pino Toscano
    Pravin Satpute
    Ramana Radhakrishnan
    Richard Henderson
    Richard Sandiford
    Robert Millan
    Roland McGrath
    Ryan S. Arnold
    Ryosei Takagi
    Samuel Thibault
    Sebastan Andrzej Siewior
    Siddhesh Poyarekar
    Steve Ellcey
    Steve McIntyre
    Thomas Bushnell, BSG
    Thomas Schwinge
    Thorsten Glaser
    Tom de Vries
    Torbjorn Granlund
    Tulio Magno Quites Machado Filho
    Ulrich Drepper
    Ulrich Weigand
    Viju Vincent
    Will Schmidt
    
  • glibc-2.16-ports-merge
    libc and ports repositories merged as of the 2.16.0 release.
    
  • glibc-2.16.0
    75f0d304 · Release 2.16 ·
    The GNU C Library
    =================
    
    The GNU C Library version 2.16 is now available.
    
    The GNU C Library is used as *the* C library in the GNU systems
    and most systems with the Linux kernel.
    
    The GNU C Library is primarily designed to be a portable
    and high performance C library.  It follows all relevant
    standards including ISO C99 and POSIX.1-2008.  It is also
    internationalized and has one of the most complete
    internationalization interfaces known.
    
    The GNU C Library webpage is at http://www.gnu.org/software/libc/
    
    Packages for the 2.16 release may be downloaded from:
            http://ftpmirror.gnu.org/libc/
            http://ftp.gnu.org/gnu/libc/
    
    The mirror list is at http://www.gnu.org/order/ftp.html
    
    NEWS for version 2.16
    =====================
    
    * The following bugs are resolved with this release:
    
      174, 208, 350, 369, 411, 706, 766, 887, 2074, 2541, 2547, 2548, 2550,
      2551, 2552, 2553, 2554, 2562, 2563, 2565, 2566, 2570, 2576, 2636, 2678,
      3335, 3440, 3748, 3768, 3866, 3868, 3906, 3976, 3992, 4026, 4108, 4596,
      4822, 5077, 5461, 5805, 5993, 6471, 6486, 6578, 6649, 6730, 6770, 6794,
      6884, 6890, 6894, 6895, 6907, 6911, 6959, 7064, 9739, 9902, 10110, 10135,
      10140, 10153, 10210, 10254, 10346, 10375, 10545, 10716, 10846, 11174,
      11322, 11365, 11451, 11494, 11521, 11677, 11837, 11959, 12047, 12097,
      12193, 12194, 12297, 12298, 12301, 12340, 12354, 12416, 12495, 13058,
      13223, 13361, 13525, 13526, 13527, 13528, 13529, 13530, 13531, 13532,
      13533, 13547, 13551, 13552, 13553, 13555, 13556, 13559, 13563, 13566,
      13576, 13579, 13583, 13592, 13594, 13613, 13618, 13637, 13656, 13658,
      13673, 13691, 13695, 13704, 13705, 13706, 13718, 13726, 13738, 13739,
      13743, 13750, 13758, 13760, 13761, 13775, 13786, 13787, 13792, 13806,
      13824, 13840, 13841, 13844, 13846, 13848, 13851, 13852, 13854, 13871,
      13872, 13873, 13879, 13882, 13883, 13884, 13885, 13886, 13892, 13895,
      13908, 13910, 13911, 13912, 13913, 13914, 13915, 13916, 13917, 13918,
      13919, 13920, 13921, 13922, 13923, 13924, 13926, 13927, 13928, 13938,
      13941, 13942, 13954, 13955, 13956, 13963, 13967, 13968, 13970, 13973,
      13979, 13983, 13986, 13996, 14012, 14027, 14033, 14034, 14036, 14040,
      14043, 14044, 14048, 14049, 14050, 14053, 14055, 14059, 14064, 14075,
      14080, 14083, 14103, 14104, 14109, 14112, 14117, 14122, 14123, 14134,
      14153, 14183, 14188, 14199, 14210, 14218, 14229, 14241, 14273, 14277,
      14278
    
    * Support for the x32 ABI on x86-64 added.  The x32 target is selected by
      configuring glibc with:
            BUILD_CC='gcc' CC='gcc -mx32' CXX='g++ -mx32'
      Visit <http://sites.google.com/site/x32abi/> for more x32 ABI info.
      Implemented by H.J. Lu.
    
    * ISO C11 support:
    
      + define static_assert
    
      + do not declare gets
    
      + declare at_quick_exit and quick_exit also for ISO C11
    
      + aligned_alloc.  NB: The code is deliberately allows the size parameter
        to not be a multiple of the alignment.  This is a moronic requirement
        in the standard but it is only a requirement on the caller, not the
        implementation.
    
      + timespec_get added
    
      + uchar.h support added
    
      + CMPLX, CMPLXF, CMPLXL added
    
      Implemented by Ulrich Drepper.
    
    * Support for the IA-64 has been moved to ports.
    
    * Remove support for anything but ELF binary format
    
    * Checking versions of poll, ppoll added.
      Implemented by Ulrich Drepper.
    
    * More generic and 64-bit performance optimizations to math functions.
      Implemented by Ulrich Drepper.
    
    * New configure option --enable-obsolete-rpc makes the deprecated RPC
      headers and functions available at compile time as they were before
      version 2.14.  This option will be removed at some time in the future
      after the TI-RPC library becomes fully sufficient for the needs of
      existing applications.
    
    * Compatibility code for Linux kernel versions before 2.4 has been removed.
      Note that glibc is not expected to work with any Linux kernel version
      before 2.6.
    
    * New header <sys/auxv.h> and function getauxval allowing easy access to
      the AT_* key-value pairs passed from the Linux kernel.  The header also
      defines the HWCAP_* bits associated with the AT_HWCAP key.
    
    * New locales: mag_IN
    
    * New configure option --enable-systemtap builds SystemTap static probes
      into libc for setjmp and longjmp and into libpthread for various operations.
      So far the setjmp/longjmp probes and some of the libpthread probes are
      provided only for i*86 and x86_64.
      Implemented by Roland McGrath and Rayson Ho.
    
    * Optimized expf for x86-32 and x86-64.  Implemented by Liubov Dmitrieva.
    
    * More optimized functions for PowerPC.  Implemented by Adhemerval Zanella
      and Will Schmidt.
    
    * More optimized functions for SPARC.  Implemented by David S. Miller.
    
    * Improved support for cross-compilation, especially bootstrap builds
      without a previously built glibc.
    
    * Ports for the TILE-Gx and TILEPro families of processors.  Contributed by
      Chris Metcalf from Tilera.
    
    * Support for the old ARM ABI has been removed from ports.  Only the EABI is
      now supported for ARM processors.
    
    * The hard-float variant of the ARM EABI now uses /lib/ld-linux-armhf.so.3
      as the name of the dynamic linker, to distinguish it from the
      /lib/ld-linux.so.3 dynamic linker used for the base EABI.
    
    * Support for CRIS has been removed from ports.
    
    * A new class of installed header has been documented for low-level
      platform-specific functionality.  PowerPC added the first instance with a
      function to provide time base register access.  Contributed by Tulio
      Magno Quites Machado Filho.
    
    * ix86 configurations now install header files that are consistent with
      what x86-64 configurations install.  These same header files can be used
      for -m32, -m64, or -mx32 builds.
      Contributed by H.J. Lu.
    
    * Math library bug fixes.  A thorough audit of all open math library bugs was
      conducted by Joseph Myers.  Significant progress was made on many math
      library bugs resulting in more accurate exceptions and function results.
      Many thanks to all those that contributed including Andreas Jaeger for his
      patch review and work on the x87 trigonometric instruction issues.
    
    * Timezone data is no longer installed.  Timezone-related binaries and scripts
      will continue to be installed.  Users should obtain their timezone data from
      their distribution provider or from the tzdata package at
      <ftp://munnari.oz.au/pub/>.
    
    Contributors
    ============
    
    This release was made possible by the contributions of many people.
    The maintainers are grateful to everyone who has contributed
    changes or bug reports.  These include:
    
    Adhemerval Zanella
    Allan McRae
    Andreas Jaeger
    Andreas Krebbel
    Andreas Schwab
    Antoine Balestrat
    Anton Blanchard
    Aurelien Jarno
    Carlos O'Donell
    Carlos Sánchez de La Lama
    Chandan Kumar
    Chris Demetriou
    Chris Leonard
    Chris Metcalf
    Chung-Lin Tang
    Cyril Hrubis
    David S. Miller
    Dwayne Grant McConnell
    Fabrice Bauzac
    H.J. Lu
    Ian Wienand
    Jakub Jelinek
    Jan Kratochvil
    Jeff Law
    Jim Meyering
    Joseph Myers
    Kai Tietz
    Kaz Kojima
    Kees Cook
    Liubov Dmitrieva
    Marek Polacek
    Markus Trippelsdorf
    Maxim Kuvyrkov
    Michael Matz
    Mike Frysinger
    Nick Bowler
    Nicolas Boulenguez
    Nix
    Paul Bolle
    Paul Eggert
    Paul Pluzhnikov
    Petr Baudis
    Pino Toscano
    Rafe Kettler
    Rayson Ho
    Richard Henderson
    Robert Millan
    Roland Mc Grath
    Roland McGrath
    Ryan S. Arnold
    Samuel Thibault
    Serkan Kaba
    Siddhesh Poyarekar
    Simon Josefsson
    Stanislav Brabec
    Stephen Compall
    Thomas Schwinge
    Tom de Vries
    Tulio Magno Quites Machado Filho
    Ulrich Drepper
    Will Schmidt
    
  • glibc-2.16
    ee9247c3 · Update NEWS and README. ·
    The GNU C Library
    =================
    
    The GNU C Library version 2.16 is now available.
    
    The GNU C Library is used as *the* C library in the GNU systems
    and most systems with the Linux kernel.
    
    The GNU C Library is primarily designed to be a portable
    and high performance C library.  It follows all relevant
    standards including ISO C99 and POSIX.1-2008.  It is also
    internationalized and has one of the most complete
    internationalization interfaces known.
    
    The GNU C Library webpage is at http://www.gnu.org/software/libc/
    
    Packages for the 2.16 release may be downloaded from:
            http://ftpmirror.gnu.org/libc/
            http://ftp.gnu.org/gnu/libc/
    
    The mirror list is at http://www.gnu.org/order/ftp.html
    
    NEWS for version 2.16
    =====================
    
    * The following bugs are resolved with this release:
    
      174, 208, 350, 369, 411, 706, 766, 887, 2074, 2541, 2547, 2548, 2550,
      2551, 2552, 2553, 2554, 2562, 2563, 2565, 2566, 2570, 2576, 2636, 2678,
      3335, 3440, 3748, 3768, 3866, 3868, 3906, 3976, 3992, 4026, 4108, 4596,
      4822, 5077, 5461, 5805, 5993, 6471, 6486, 6578, 6649, 6730, 6770, 6794,
      6884, 6890, 6894, 6895, 6907, 6911, 6959, 7064, 9739, 9902, 10110, 10135,
      10140, 10153, 10210, 10254, 10346, 10375, 10545, 10716, 10846, 11174,
      11322, 11365, 11451, 11494, 11521, 11677, 11837, 11959, 12047, 12097,
      12193, 12194, 12297, 12298, 12301, 12340, 12354, 12416, 12495, 13058,
      13223, 13361, 13525, 13526, 13527, 13528, 13529, 13530, 13531, 13532,
      13533, 13547, 13551, 13552, 13553, 13555, 13556, 13559, 13563, 13566,
      13576, 13579, 13583, 13592, 13594, 13613, 13618, 13637, 13656, 13658,
      13673, 13691, 13695, 13704, 13705, 13706, 13718, 13726, 13738, 13739,
      13743, 13750, 13758, 13760, 13761, 13775, 13786, 13787, 13792, 13806,
      13824, 13840, 13841, 13844, 13846, 13848, 13851, 13852, 13854, 13871,
      13872, 13873, 13879, 13882, 13883, 13884, 13885, 13886, 13892, 13895,
      13908, 13910, 13911, 13912, 13913, 13914, 13915, 13916, 13917, 13918,
      13919, 13920, 13921, 13922, 13923, 13924, 13926, 13927, 13928, 13938,
      13941, 13942, 13954, 13955, 13956, 13963, 13967, 13968, 13970, 13973,
      13979, 13983, 13986, 13996, 14012, 14027, 14033, 14034, 14036, 14040,
      14043, 14044, 14048, 14049, 14050, 14053, 14055, 14059, 14064, 14075,
      14080, 14083, 14103, 14104, 14109, 14112, 14117, 14122, 14123, 14134,
      14153, 14183, 14188, 14199, 14210, 14218, 14229, 14241, 14273, 14277,
      14278
    
    * Support for the x32 ABI on x86-64 added.  The x32 target is selected by
      configuring glibc with:
            BUILD_CC='gcc' CC='gcc -mx32' CXX='g++ -mx32'
      Visit <http://sites.google.com/site/x32abi/> for more x32 ABI info.
      Implemented by H.J. Lu.
    
    * ISO C11 support:
    
      + define static_assert
    
      + do not declare gets
    
      + declare at_quick_exit and quick_exit also for ISO C11
    
      + aligned_alloc.  NB: The code is deliberately allows the size parameter
        to not be a multiple of the alignment.  This is a moronic requirement
        in the standard but it is only a requirement on the caller, not the
        implementation.
    
      + timespec_get added
    
      + uchar.h support added
    
      + CMPLX, CMPLXF, CMPLXL added
    
      Implemented by Ulrich Drepper.
    
    * Support for the IA-64 has been moved to ports.
    
    * Remove support for anything but ELF binary format
    
    * Checking versions of poll, ppoll added.
      Implemented by Ulrich Drepper.
    
    * More generic and 64-bit performance optimizations to math functions.
      Implemented by Ulrich Drepper.
    
    * New configure option --enable-obsolete-rpc makes the deprecated RPC
      headers and functions available at compile time as they were before
      version 2.14.  This option will be removed at some time in the future
      after the TI-RPC library becomes fully sufficient for the needs of
      existing applications.
    
    * Compatibility code for Linux kernel versions before 2.4 has been removed.
      Note that glibc is not expected to work with any Linux kernel version
      before 2.6.
    
    * New header <sys/auxv.h> and function getauxval allowing easy access to
      the AT_* key-value pairs passed from the Linux kernel.  The header also
      defines the HWCAP_* bits associated with the AT_HWCAP key.
    
    * New locales: mag_IN
    
    * New configure option --enable-systemtap builds SystemTap static probes
      into libc for setjmp and longjmp and into libpthread for various operations.
      So far the setjmp/longjmp probes and some of the libpthread probes are
      provided only for i*86 and x86_64.
      Implemented by Roland McGrath and Rayson Ho.
    
    * Optimized expf for x86-32 and x86-64.  Implemented by Liubov Dmitrieva.
    
    * More optimized functions for PowerPC.  Implemented by Adhemerval Zanella
      and Will Schmidt.
    
    * More optimized functions for SPARC.  Implemented by David S. Miller.
    
    * Improved support for cross-compilation, especially bootstrap builds
      without a previously built glibc.
    
    * Ports for the TILE-Gx and TILEPro families of processors.  Contributed by
      Chris Metcalf from Tilera.
    
    * Support for the old ARM ABI has been removed from ports.  Only the EABI is
      now supported for ARM processors.
    
    * The hard-float variant of the ARM EABI now uses /lib/ld-linux-armhf.so.3
      as the name of the dynamic linker, to distinguish it from the
      /lib/ld-linux.so.3 dynamic linker used for the base EABI.
    
    * Support for CRIS has been removed from ports.
    
    * A new class of installed header has been documented for low-level
      platform-specific functionality.  PowerPC added the first instance with a
      function to provide time base register access.  Contributed by Tulio
      Magno Quites Machado Filho.
    
    * ix86 configurations now install header files that are consistent with
      what x86-64 configurations install.  These same header files can be used
      for -m32, -m64, or -mx32 builds.
      Contributed by H.J. Lu.
    
    * Math library bug fixes.  A thorough audit of all open math library bugs was
      conducted by Joseph Myers.  Significant progress was made on many math
      library bugs resulting in more accurate exceptions and function results.
      Many thanks to all those that contributed including Andreas Jaeger for his
      patch review and work on the x87 trigonometric instruction issues.
    
    * Timezone data is no longer installed.  Timezone-related binaries and scripts
      will continue to be installed.  Users should obtain their timezone data from
      their distribution provider or from the tzdata package at
      <ftp://munnari.oz.au/pub/>.
    
    Contributors
    ============
    
    This release was made possible by the contributions of many people.
    The maintainers are grateful to everyone who has contributed
    changes or bug reports.  These include:
    
    Adhemerval Zanella
    Allan McRae
    Andreas Jaeger
    Andreas Krebbel
    Andreas Schwab
    Antoine Balestrat
    Anton Blanchard
    Aurelien Jarno
    Carlos O'Donell
    Carlos Sánchez de La Lama
    Chandan Kumar
    Chris Demetriou
    Chris Leonard
    Chris Metcalf
    Chung-Lin Tang
    Cyril Hrubis
    David S. Miller
    Dwayne Grant McConnell
    Fabrice Bauzac
    H.J. Lu
    Ian Wienand
    Jakub Jelinek
    Jan Kratochvil
    Jeff Law
    Jim Meyering
    Joseph Myers
    Kai Tietz
    Kaz Kojima
    Kees Cook
    Liubov Dmitrieva
    Marek Polacek
    Markus Trippelsdorf
    Maxim Kuvyrkov
    Michael Matz
    Mike Frysinger
    Nick Bowler
    Nicolas Boulenguez
    Nix
    Paul Bolle
    Paul Eggert
    Paul Pluzhnikov
    Petr Baudis
    Pino Toscano
    Rafe Kettler
    Rayson Ho
    Richard Henderson
    Robert Millan
    Roland Mc Grath
    Roland McGrath
    Ryan S. Arnold
    Samuel Thibault
    Serkan Kaba
    Siddhesh Poyarekar
    Simon Josefsson
    Stanislav Brabec
    Stephen Compall
    Thomas Schwinge
    Tom de Vries
    Tulio Magno Quites Machado Filho
    Ulrich Drepper
    Will Schmidt
    
  • glibc-2.16-tps
    Translation project snapshot for 2.16
    
  • glibc-2.15
    glibc 2.15 release
    
  • glibc-2.14.1
    4f2b767f · glibc 2.14.1 release ·
    glibc 2.14.1 release
    
  • glibc-2.14
    356f8bc6 · 2.14 release ·
    Tag 2.14 release