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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
libc and ports repositories merged as of the 2.16.0 release.
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
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
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