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
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