1 GNU C Library NEWS -- history of user-visible changes.
2 Copyright (C) 1992-2014 Free Software Foundation, Inc.
3 See the end for copying conditions.
5 Please send GNU C library bug reports via <http://sourceware.org/bugzilla/>
6 using `glibc' in the "product" field.
10 * The following bugs are resolved with this release:
12 156, 387, 431, 762, 832, 926, 2801, 4772, 6786, 6787, 6807, 6810, 7003,
13 9721, 9954, 10253, 10278, 11087, 11157, 11214, 12100, 12486, 12986,
14 13028, 13982, 13985, 14029, 14032, 14120, 14143, 14155, 14286, 14547,
15 14699, 14752, 14782, 14876, 14910, 15004, 15048, 15073, 15089, 15128,
16 15218, 15268, 15277, 15308, 15362, 15374, 15400, 15425, 15427, 15483,
17 15522, 15531, 15532, 15593, 15601, 15608, 15609, 15610, 15632, 15640,
18 15670, 15672, 15680, 15681, 15723, 15734, 15735, 15736, 15748, 15749,
19 15754, 15760, 15763, 15764, 15797, 15799, 15825, 15843, 15844, 15846,
20 15847, 15849, 15850, 15855, 15856, 15857, 15859, 15867, 15886, 15887,
21 15890, 15892, 15893, 15895, 15897, 15901, 15905, 15909, 15915, 15917,
22 15919, 15921, 15923, 15939, 15941, 15948, 15963, 15966, 15985, 15988,
23 15997, 16032, 16034, 16036, 16037, 16038, 16041, 16055, 16071, 16072,
24 16074, 16077, 16078, 16103, 16112, 16133, 16143, 16144, 16146, 16150,
25 16151, 16153, 16167, 16172, 16195, 16214, 16245, 16271, 16274, 16283,
26 16289, 16293, 16314, 16316, 16330, 16337, 16338, 16356, 16365, 16366,
27 16369, 16372, 16375, 16379, 16384, 16385, 16386, 16387, 16390, 16394,
28 16400, 16407, 16408, 16414, 16430, 16453.
30 * Slovenian translations for glibc messages have been contributed by the
31 Translation Project's Slovenian team of translators.
33 * The public headers no longer use __unused nor __block. This change is to
34 support compiling programs that are derived from BSD sources and use
35 __unused internally, and to support compiling with Clang's -fblock
36 extension which uses __block.
38 * CVE-2012-4412 The strcoll implementation caches indices and rules for
39 large collation sequences to optimize multiple passes. This cache
40 computation may overflow for large collation sequences and may cause a
41 stack or buffer overflow. This is now fixed to use a slower algorithm
42 which does not use a cache if there is an integer overflow.
44 * CVE-2012-4424 The strcoll implementation uses malloc to cache indices and
45 rules for large collation sequences to optimize multiple passes and falls
46 back to alloca if malloc fails, resulting in a possible stack overflow.
47 The implementation now falls back to an uncached collation sequence lookup
50 * CVE-2013-4788 The pointer guard used for pointer mangling was not
51 initialized for static applications resulting in the security feature
52 being disabled. The pointer guard is now correctly initialized to a
53 random value for static applications. Existing static applications need
54 to be recompiled to take advantage of the fix (bug 15754).
56 * CVE-2013-4237 The readdir_r function could write more than NAME_MAX bytes
57 to the d_name member of struct dirent, or omit the terminating NUL
58 character. (Bugzilla #14699).
60 * CVE-2013-4332 The pvalloc, valloc, memalign, posix_memalign and
61 aligned_alloc functions could allocate too few bytes or corrupt the
62 heap when passed very large allocation size values (Bugzilla #15855,
65 * CVE-2013-4458 Stack overflow in getaddrinfo with large number of results
66 for AF_INET6 has been fixed (Bugzilla #16072).
68 * New locales: ak_GH, anp_IN, ar_SS, cmn_TW, hak_TW, lzh_TW, nan_TW, pap_AW,
69 pap_CW, quz_PE, the_NP.
71 * Substantially revised locales: gd_GB, ht_HT
73 * The LC_ADDRESS field was updated to support country_car for almost all
76 * ISO 1427 definitions were updated.
78 * ISO 3166 definitions were updated.
80 * The localedef utility now supports --big-endian and --little-endian
81 command-line options to generate locales for a different system from that
82 for which the C library was built.
84 * Binary locale files now only depend on the endianness of the system for
85 which they are generated and not on other properties of that system. As a
86 consequence, binary files generated with new localedef may be incompatible
87 with old versions of the GNU C Library, and binary files generated with
88 old localedef may be incompatible with this version of the GNU C Library,
89 in the following circumstances:
91 + Locale files may be incompatible on m68k systems.
93 + Locale archive files (but not separate files for individual locales) may
94 be incompatible on systems where plain "char" is signed.
96 * The configure option --disable-versioning has been removed. Builds with
97 --disable-versioning had not worked for several years.
99 * ISO 639 definitions were updated for Chiga (cgg) and Chinese (gan, hak, czh,
100 cjy, lzh, cmn, mnp, cdo, czo, cpx, wuu, hsn, yue).
102 * SystemTap probes for malloc have been introduced.
104 * SystemTap probes for slow multiple precision fallback paths of
105 transcendental functions have been introduced.
107 * Support for powerpc64le has been added.
109 * The soft-float powerpc port now supports e500 processors.
111 * Support for STT_GNU_IFUNC symbols added for ppc32/power4+ and ppc64.
113 * A new feature test macro _DEFAULT_SOURCE is available to enable the same
114 set of header declarations that are enabled by default, even when other
115 feature test macros or compiler options such as -std=c99 would otherwise
116 disable some of those declarations.
118 * The _BSD_SOURCE feature test macro no longer enables BSD interfaces that
119 conflict with POSIX. The libbsd-compat library (which was a dummy library
120 that did nothing) has also been removed.
124 * The following bugs are resolved with this release:
126 2546, 2560, 5159, 6809, 7006, 10060, 10062, 10283, 10357, 10686, 11120,
127 11561, 12310, 12387, 12492, 12515, 12723, 13550, 13889, 13951, 13988,
128 14142, 14176, 14200, 14256, 14280, 14293, 14317, 14327, 14478, 14496,
129 14582, 14686, 14812, 14888, 14894, 14907, 14908, 14909, 14920, 14952,
130 14964, 14981, 14982, 14985, 14991, 14994, 14996, 15000, 15003, 15006,
131 15007, 15014, 15020, 15022, 15023, 15036, 15054, 15055, 15062, 15078,
132 15084, 15085, 15086, 15100, 15160, 15214, 15221, 15232, 15234, 15283,
133 15285, 15287, 15304, 15305, 15307, 15309, 15327, 15330, 15335, 15336,
134 15337, 15339, 15342, 15346, 15359, 15361, 15366, 15380, 15381, 15394,
135 15395, 15405, 15406, 15409, 15416, 15418, 15419, 15423, 15424, 15426,
136 15429, 15431, 15432, 15441, 15442, 15448, 15465, 15480, 15485, 15488,
137 15490, 15492, 15493, 15497, 15506, 15529, 15536, 15553, 15577, 15583,
138 15618, 15627, 15631, 15654, 15655, 15666, 15667, 15674, 15711, 15755,
141 * CVE-2013-2207 Incorrectly granting access to another user's pseudo-terminal
142 has been fixed by disabling the use of pt_chown (Bugzilla #15755).
143 Distributions can re-enable building and using pt_chown via the new configure
144 option `--enable-pt_chown'. Enabling the use of pt_chown carries with it
145 considerable security risks and should only be used if the distribution
146 understands and accepts the risks.
148 * CVE-2013-0242 Buffer overrun in regexp matcher has been fixed (Bugzilla
151 * CVE-2013-1914 Stack overflow in getaddrinfo with many results has been
152 fixed (Bugzilla #15330).
154 * Add support for calling C++11 thread_local object destructors on thread
155 and program exit. This needs compiler support for offloading C++11
156 destructor calls to glibc.
158 * Improved worst case performance of libm functions with double inputs and
161 * Support for priority inherited mutexes in pthread condition variables on
162 non-x86 architectures.
164 * Port to Xilinx MicroBlaze contributed by David Holsgrove.
166 * Optimized string functions for AArch64. Implemented by Marcus Shawcroft.
168 * Optimized string functions for ARM. Implemented by Will Newton and
171 * Optimized libm functions for SPARC. Implemented by David S. Miller.
173 * Support for building more of ARM glibc as Thumb-2 code. Implemented by
176 * Support for building most of MIPS glibc as MIPS16 code. Implemented by
177 Chung-Lin Tang, Maciej W. Rozycki and Maxim Kuvyrkov.
179 * Added a benchmark framework to track performance of functions in glibc.
181 * New <math.h> macro named issignaling to check for a signaling NaN (sNaN).
182 It is based on draft TS 18661 and currently enabled as a GNU extension.
184 * On Linux, the clock function now uses the clock_gettime system call
185 for improved precision, rather than old times system call.
187 * Added support for version-3 tz format files. This is needed when using
188 the tz database release 2013e or later, and affects a few unusual cases --
189 currently only TZ='America/Godthab' for time stamps after 2037.
191 * Added new API functions pthread_getattr_default_np and
192 pthread_setattr_default_np to get and set the default pthread
193 attributes of a process.
195 * Added support for TSX lock elision for pthread mutexes on i386 and x86-64.
196 This may improve lock scaling of existing programs on TSX capable systems.
197 When the --enable-lock-elision=yes parameter is specified at configure
198 time lock elision will be enabled by default for all PTHREAD_MUTEX_DEFAULT
201 * Support added for AT_HWCAP2 (to coincide with Linux kernel 3.10
202 availability). Implemented by Ryan S. Arnold.
204 * Support added for POWER8 platform. Implemented by Ryan S. Arnold.
208 * The following bugs are resolved with this release:
210 1349, 3439, 3479, 3665, 5044, 5246, 5298, 5400, 6530, 6677, 6778, 6808,
211 9685, 9914, 10014, 10038, 10114, 10191, 10631, 10873, 11438, 11607, 11638,
212 11741, 12140, 13013, 13412, 13542, 13601, 13603, 13604, 13629, 13679,
213 13696, 13698, 13717, 13741, 13759, 13761, 13763, 13881, 13939, 13950,
214 13952, 13966, 14042, 14047, 14090, 14150, 14151, 14152, 14154, 14157,
215 14166, 14173, 14195, 14197, 14237, 14246, 14251, 14252, 14283, 14298,
216 14303, 14307, 14328, 14331, 14336, 14337, 14347, 14349, 14368, 14376,
217 14417, 14447, 14459, 14476, 14477, 14501, 14505, 14510, 14516, 14518,
218 14519, 14530, 14532, 14538, 14543, 14544, 14545, 14557, 14562, 14568,
219 14576, 14579, 14583, 14587, 14595, 14602, 14610, 14621, 14638, 14645,
220 14648, 14652, 14660, 14661, 14669, 14672, 14683, 14694, 14716, 14719,
221 14743, 14767, 14783, 14784, 14785, 14793, 14796, 14797, 14801, 14803,
222 14805, 14807, 14811, 14815, 14821, 14822, 14824, 14828, 14831, 14833,
223 14835, 14838, 14856, 14863, 14865, 14866, 14868, 14869, 14871, 14872,
224 14879, 14889, 14893, 14898, 14914.
226 * Optimization of memcpy for MIPS.
228 * CVE-2011-4609 svc_run() produces high cpu usage when accept fails with
229 EMFILE has been fixed (Bugzilla #14889).
231 * The add-on ports collection is now distributed in the "ports" subdirectory
232 of the main GNU C Library distribution, rather than separately.
234 * Port to ARM AArch64 contributed by Linaro.
236 * Support for STT_GNU_IFUNC symbols added for s390 and s390x.
237 Optimized versions of memcpy, memset, and memcmp added for System z10 and
239 Implemented by Andreas Krebbel.
241 * The new function secure_getenv allows secure access to the environment,
242 returning NULL if running in a SUID/SGID process. This function replaces
243 the internal function __secure_getenv.
245 * SystemTap static probes have been added into the dynamic linker.
246 Implemented by Gary Benson.
248 * Optimizations of string functions strstr, strcasestr and memmem.
249 Implemented by Maxim Kuvyrkov.
251 * The minimum Linux kernel version that this version of the GNU C Library
252 can be used with is 2.6.16.
254 * Optimizations of string functions memchr, wcschr, wcscpy, and wcsrchr for
255 powerpc POWER7. Implemented by Will Schmidt.
257 * New configure option --disable-nscd builds the C library such that it
258 never attempts to contact the Name Service Caching Daemon (nscd).
259 New configure option --disable-build-nscd avoids building nscd itself;
260 this is the default if --disable-nscd is used.
262 * Improved support for cross-compilation, including cross-testing and
263 bootstrap builds without a previously built glibc.
265 * Several testsuite tests are now able to test multiple IFUNC variants of an
266 interface, rather than just testing the one that would be chooen by
269 * New configure options --with-bugurl and --with-pkgversion, for
270 distributors to use to embed their bug-reporting and package version
271 information in --help and --version output.
273 * The ttyname and ttyname_r functions on Linux now fall back to searching for
274 the tty file descriptor in /dev/pts or /dev if /proc is not available. This
275 allows creation of chroots without the procfs mounted on /proc.
277 * The `crypt' function now fails if passed salt bytes that violate the
278 specification for those values. On Linux, the `crypt' function will
279 consult /proc/sys/crypto/fips_enabled to determine if "FIPS mode" is
280 enabled, and fail on encrypted strings using the MD5 or DES algorithm
281 when the mode is enabled.
283 * The `clock_*' suite of functions (declared in <time.h>) is now available
284 directly in the main C library. Previously it was necessary to link with
285 -lrt to use these functions. This change has the effect that a
286 single-threaded program that uses a function such as `clock_gettime' (and
287 is not linked with -lrt) will no longer implicitly load the pthreads
288 library at runtime and so will not suffer the overheads associated with
289 multi-thread support in other code such as the C++ runtime library.
291 * New locales: ayc_PE, doi_IN, ia_FR, mni_IN, nhn_MX, niu_NU, niu_NZ,
296 * The following bugs are resolved with this release:
298 174, 208, 350, 369, 411, 706, 766, 887, 2074, 2541, 2547, 2548, 2550,
299 2551, 2552, 2553, 2554, 2562, 2563, 2565, 2566, 2570, 2576, 2636, 2678,
300 3335, 3440, 3748, 3768, 3866, 3868, 3906, 3976, 3992, 4026, 4108, 4596,
301 4822, 5077, 5461, 5805, 5993, 6471, 6486, 6578, 6649, 6730, 6770, 6794,
302 6884, 6890, 6894, 6895, 6907, 6911, 6959, 7064, 9739, 9902, 10110, 10135,
303 10140, 10153, 10210, 10254, 10346, 10375, 10545, 10716, 10846, 11174,
304 11261, 11322, 11365, 11451, 11494, 11521, 11677, 11837, 11959, 12047,
305 12097, 12193, 12194, 12297, 12298, 12301, 12340, 12354, 12416, 12495,
306 13058, 13223, 13361, 13525, 13526, 13527, 13528, 13529, 13530, 13531,
307 13532, 13533, 13547, 13551, 13552, 13553, 13555, 13556, 13559, 13563,
308 13566, 13576, 13579, 13583, 13592, 13594, 13613, 13618, 13637, 13656,
309 13658, 13673, 13691, 13695, 13704, 13705, 13706, 13718, 13726, 13738,
310 13739, 13743, 13750, 13758, 13760, 13761, 13775, 13786, 13787, 13792,
311 13806, 13824, 13840, 13841, 13844, 13846, 13848, 13851, 13852, 13854,
312 13871, 13872, 13873, 13879, 13882, 13883, 13884, 13885, 13886, 13892,
313 13895, 13908, 13910, 13911, 13912, 13913, 13914, 13915, 13916, 13917,
314 13918, 13919, 13920, 13921, 13922, 13923, 13924, 13926, 13927, 13928,
315 13938, 13941, 13942, 13954, 13955, 13956, 13963, 13967, 13968, 13970,
316 13973, 13979, 13983, 13986, 13996, 14012, 14027, 14033, 14034, 14036,
317 14040, 14043, 14044, 14048, 14049, 14050, 14053, 14055, 14059, 14064,
318 14075, 14080, 14083, 14103, 14104, 14109, 14112, 14117, 14122, 14123,
319 14134, 14153, 14183, 14188, 14199, 14210, 14218, 14229, 14241, 14273,
322 * Support for the x32 ABI on x86-64 added. The x32 target is selected by
323 configuring glibc with:
324 BUILD_CC='gcc' CC='gcc -mx32' CXX='g++ -mx32'
325 Visit <http://sites.google.com/site/x32abi/> for more x32 ABI info.
326 Implemented by H.J. Lu.
330 + define static_assert
332 + do not declare gets
334 + declare at_quick_exit and quick_exit also for ISO C11
336 + aligned_alloc. NB: The code is deliberately allows the size parameter
337 to not be a multiple of the alignment. This is a moronic requirement
338 in the standard but it is only a requirement on the caller, not the
343 + uchar.h support added
345 + CMPLX, CMPLXF, CMPLXL added
347 Implemented by Ulrich Drepper.
349 * Support for the IA-64 has been moved to ports.
351 * Remove support for anything but ELF binary format
353 * Checking versions of poll, ppoll added.
354 Implemented by Ulrich Drepper.
356 * More generic and 64-bit performance optimizations to math functions.
357 Implemented by Ulrich Drepper.
359 * New configure option --enable-obsolete-rpc makes the deprecated RPC
360 headers and functions available at compile time as they were before
361 version 2.14. This option will be removed at some time in the future
362 after the TI-RPC library becomes fully sufficient for the needs of
363 existing applications.
365 * Compatibility code for Linux kernel versions before 2.4 has been removed.
366 Note that glibc is not expected to work with any Linux kernel version
369 * New header <sys/auxv.h> and function getauxval allowing easy access to
370 the AT_* key-value pairs passed from the Linux kernel. The header also
371 defines the HWCAP_* bits associated with the AT_HWCAP key.
373 * New locales: mag_IN
375 * New configure option --enable-systemtap builds SystemTap static probes
376 into libc for setjmp and longjmp and into libpthread for various operations.
377 So far the setjmp/longjmp probes and some of the libpthread probes are
378 provided only for i*86 and x86_64.
379 Implemented by Roland McGrath and Rayson Ho.
381 * Optimized expf for x86-32 and x86-64. Implemented by Liubov Dmitrieva.
383 * More optimized functions for PowerPC. Implemented by Adhemerval Zanella
386 * More optimized functions for SPARC. Implemented by David S. Miller.
388 * Improved support for cross-compilation, especially bootstrap builds
389 without a previously built glibc.
391 * Ports for the TILE-Gx and TILEPro families of processors. Contributed by
392 Chris Metcalf from Tilera.
394 * Support for the old ARM ABI has been removed from ports. Only the EABI is
395 now supported for ARM processors.
397 * The hard-float variant of the ARM EABI now uses /lib/ld-linux-armhf.so.3
398 as the name of the dynamic linker, to distinguish it from the
399 /lib/ld-linux.so.3 dynamic linker used for the base EABI.
401 * Support for CRIS has been removed from ports.
403 * A new class of installed header has been documented for low-level
404 platform-specific functionality. PowerPC added the first instance with a
405 function to provide time base register access. Contributed by Tulio
406 Magno Quites Machado Filho.
408 * ix86 configurations now install header files that are consistent with
409 what x86-64 configurations install. These same header files can be used
410 for -m32, -m64, or -mx32 builds.
411 Contributed by H.J. Lu.
413 * Math library bug fixes. A thorough audit of all open math library bugs was
414 conducted by Joseph Myers. Significant progress was made on many math
415 library bugs resulting in more accurate exceptions and function results.
416 Many thanks to all those that contributed including Andreas Jaeger for his
417 patch review and work on the x87 trigonometric instruction issues.
419 * Timezone data is no longer installed. Timezone-related binaries and scripts
420 will continue to be installed. Users should obtain their timezone data from
421 their distribution provider or from the tzdata package at
422 <ftp://munnari.oz.au/pub/>.
426 * The following bugs are resolved with this release:
428 6779, 6783, 9696, 10103, 10709, 11589, 11929, 12403, 12786, 12840, 12847,
429 12868, 12852, 12874, 12885, 12892, 12906, 12907, 12922, 12935, 12962,
430 13007, 13021, 13061, 13062, 13067, 13068, 13085, 13088, 13090, 13092,
431 13096, 13114, 13118, 13123, 13134, 13138, 13147, 13150, 13166, 13179,
432 13185, 13189, 13192, 13268, 13276, 13282, 13291, 13305, 13328, 13335,
433 13337, 13344, 13358, 13367, 13413, 13416, 13423, 13439, 13446, 13472,
434 13484, 13506, 13515, 13523, 13524, 13538, 13540
436 * New program pldd to list loaded object of a process
437 Implemented by Ulrich Drepper.
439 * Add nss_db support back to glibc. No more dependency on Berkeley db
440 and support for initgroups lookups.
441 Implemented by Ulrich Drepper.
443 * Optimized strcpy, strncpy, stpcpy, stpncpy for SSE2 and SSSE3 on x86-32.
444 Contributed by HJ Lu.
446 * Improved strcpy, strncpy, stpcpy, stpncpy for SSE2 and SSSE3 on x86-64.
447 Contributed by HJ Lu.
449 * Optimized strcat, strncat on x86-64 and optimized wcscmp, wcslen, strnlen
450 on x86-32 and x86-64.
451 Contributed by Liubov Dmitrieva.
453 * Optimized strchr and strrchr for SSE on x86-32.
454 Contributed by Liubov Dmitrieva.
456 * Optimized memchr, memrchr, rawmemchr, memcmp, wmemcmp, wcschr, wcscpy
457 for x86-64 and x86-32.
458 Contributed by Liubov Dmitrieva.
460 * New interfaces: scandirat, scandirat64
461 Implemented by Ulrich Drepper.
463 * Checking versions of FD_SET, FD_CLR, and FD_ISSET added.
464 Implemented by Ulrich Drepper.
466 * nscd now also caches the netgroup database.
467 Implemented by Ulrich Drepper.
469 * Integrate libm with gcc's -ffinite-math-only option.
470 Implemented by Ulrich Drepper.
472 * Lots of generic, 64-bit, and x86-64-specific performance optimizations
473 to math functions. Implemented by Ulrich Drepper.
475 * Optimized strcasecmp and strncasecmp for AVX on x86-64.
476 Implemented by Ulrich Drepper.
478 * New Linux interfaces: process_vm_readv, process_vm_writev
480 * Optimized strcasecmp and strncasecmp for SSSE3 and SSE4.2 on x86-32.
481 Implemented by Ulrich Drepper.
483 * Optimized nearbyint and strcasecmp for PPC.
484 Implemented by Adhemerval Zanella.
486 * New locales: bho_IN, unm_US, es_CU, ta_LK
490 * The following bugs are resolved with this release:
492 386, 6420, 7101, 9730, 9732, 9809, 10138, 10149, 10157, 11099, 11257,
493 11258, 11487, 11532, 11558, 11578, 11634, 11653, 11668, 11697, 11724,
494 11781, 11799, 11820, 11837, 11857, 11869, 11892, 11895, 11901, 11945,
495 11947, 11952, 11987, 12052, 12083, 12158, 12178, 12200, 12346, 12350,
496 12393, 12420, 12432, 12445, 12449, 12453, 12454, 12460, 12469, 12489,
497 12509, 12510, 12511, 12518, 12527, 12541, 12545, 12551, 12582, 12583,
498 12587, 12597, 12601, 12611, 12625, 12626, 12631, 12650, 12653, 12655,
499 12660, 12671, 12681, 12684, 12685, 12711, 12713, 12714, 12717, 12723,
500 12724, 12734, 12738, 12746, 12766, 12775, 12777, 12782, 12788, 12792,
501 12795, 12811, 12813, 12814, 12841
503 * The RPC implementation in libc is obsoleted. Old programs keep working
504 but new programs cannot be linked with the routines in libc anymore.
505 Programs in need of RPC functionality must be linked against TI-RPC.
506 The TI-RPC implementation is IPv6 enabled and there are other benefits.
508 Visible changes of this change include (obviously) the inability to link
509 programs using RPC functions without referencing the TI-RPC library and the
510 removal of the RPC headers from the glibc headers.
511 Implemented by Ulrich Drepper.
513 * New Linux interfaces: clock_adjtime, name_to_handle_at, open_by_handle_at,
514 syncfs, setns, sendmmsg
516 * New locales: os_RU, bem_ZA, en_ZA, ff_SN, sw_KE, sw_TZ, lb_LU, wae_CH,
517 yue_HK, lij_IT, mhr_RU
519 * New encodings: CP770, CP771, CP772, CP773, CP774
521 * New program sotruss to trace calls through PLTs
522 Implemented by Ulrich Drepper.
524 * The malloc hook implementation is marked deprecated and will be removed
525 from the default implementation in the next version. The design never
526 worked ever since the introduction of threads. Even programs which do
527 not create threads themselves can use multiple threads created internally.
531 * The following bugs are resolved with this release:
533 3268, 6812, 7066, 10085, 10484, 10563, 10851, 11149, 11155, 11577, 11611,
534 11640, 11655, 11701, 11840, 11856, 11883, 11903, 11904, 11968, 11979,
535 12005, 12037, 12067, 12077, 12078, 12092, 12093, 12107, 12108, 12113,
536 12140, 12159, 12167, 12191, 12194, 12201, 12204, 12205, 12207, 12348,
539 * New Linux interfaces: prlimit, prlimit64, fanotify_init, fanotify_mark
541 * POWER7 optimizations: memset, memcmp, strncmp
543 * New optimized string functions for x86-64: strnlen (SSE2),
544 strcasecmp (SSE2, SSSE3, SSE4.2), strncasecmp (SSE2, SSSE3, SSE4.2)
545 Implemented by Ulrich Drepper.
549 * The following bugs are resolved with this release:
551 3662, 4457, 5553, 10162, 10401, 10414, 10554, 10824, 10864, 10915,
552 10918, 10936, 10939, 10958, 10968, 10969, 10972, 10992, 11000, 11001,
553 11007, 11010, 11027, 11039, 11040, 11041, 11043, 11046, 11056, 11070,
554 11093, 11115, 11125, 11126, 11127, 11134, 11141, 11149, 11183, 11184,
555 11185, 11186, 11187, 11188, 11189, 11190, 11191, 11192, 11193, 11194,
556 11200, 11230, 11235, 11242, 11254, 11258, 11271, 11272, 11276, 11279,
557 11287, 11292, 11319, 11332, 11333, 11387, 11389, 11390, 11394, 11397,
558 11410, 11438, 11449, 11470, 11471, 11520, 11537, 11538, 11571
560 * New interfaces: pthread_getname_np, pthread_setname_np
562 * New Linux interface: recvmmsg
564 * STT_GNU_IFUNC implemented for Sparc by David Miller.
566 * The dynamic linker now recognizes supported ABI versions from the
567 EI_ABIVERSION field in the ELF header.
568 Implemented by Ulrich Drepper.
570 * New NIS mode selector ADJUNCT_AS_SHADOW. The passwd.adjunct.byname table
571 will not be used to fill in password fields in the passwd.byname replies.
572 Instead it is used to synthesize the shadow.byname table, should it be
573 missing. This is a useful mode in some installations involving Solaris.
574 Implemented by Ulrich Drepper.
576 * New locales: kok_IN, sq_MK, cv_RU
580 * The following bugs are resolved with this release:
582 3270, 7094, 9924, 9986, 10011, 10085, 10107, 10159, 10162, 10166, 10183,
583 10195, 10196, 10200, 10203, 10207, 10211, 10213, 10217, 10221, 10229,
584 10262, 10286, 10312, 10315, 10319, 10349, 10360, 10391, 10402, 10416,
585 10418, 10422, 10425, 10446, 10448, 10452, 10540, 10553, 10560, 10564,
586 10609, 10643, 10692, 10713, 10717, 10730, 10731, 10742, 10780, 10784,
587 10789, 10817, 10823, 10840, 10847
589 * New interfaces: execvpe, pthread_sigqueue, mkstemps, mkstemps64, mkostemps,
591 Implemented by Ulrich Drepper.
593 * Checking version of longjmp added that fails if an uninitialized stack
594 frame would be created. Implemented by Ulrich Drepper.
596 * STT_GNU_IFUNC is now supported in static executables.
597 Implemented by H.J. Lu.
599 * STT_GNU_IFUNC implemented for PPC by Alan Modra.
601 * New optimized string functions for x86-64: strstr, strcasestr, memcmp,
602 strcspn, strpbrk, strspn, strcpy, stpcpy, strncpy, strcmp (SSE2, SSE4.2),
603 strncmp (SSE2, SSE4.2), strchr (SSE4.2), strrchr (SSE4.2).
604 Contributed by H.J. Lu.
606 strlen, rawmemchr, strcmp (SSSE3), strncmp (SSSE3).
607 Implemented by Ulrich Drepper.
609 * New optimized string functions for x86: strlen, strcspn, strspn, strpbrk,
611 Contributed by H.J. Lu.
613 * Support for fma instruction in AVX on x86-64.
614 Implemented by H.J. Lu and Ulrich Drepper.
616 * AVX support in x86-64 auditing support in ld.so.
617 Implemented by H.J. Lu.
619 * STB_GNU_UNIQUE support added.
620 Implemented by Ulrich Drepper.
622 * Implement second fallback mode for optimized DNS lookup for even more
623 broken environments. If two requests from the same port are not
624 handled correctly close the socket and open a new one before sending
625 the second request. The 'single-request-reopen' option in /etc/resolv.conf
626 can be used to select this mode right away, instead of rediscovering the
627 necessity is every process again.
628 Implemented by Ulrich Drepper.
630 * New resolver flag RES_USE_DNSSEC to enable use of verified lookup.
631 Implemented by Adam Tkac.
633 * Optimized iconv conversions for S390x.
634 Implemented by Andreas Krebbel.
636 * Using condvars with PI mutexes is now more efficient due to kernel
637 support for requeueing to PI futexes. NPTL support added for x86-64.
638 Implemented by Ulrich Drepper.
640 * New locales: ps_AF, my_MM
644 * The following bugs are resolved with this release:
646 697, 5381, 5807, 6411, 6545, 7040, 7058, 7067, 7080, 7083, 7095, 7098,
647 9677, 9694, 9697, 9701, 9704, 9705, 9706, 9720, 9726, 9730, 9733, 9736,
648 9741, 9750, 9753, 9759, 9781, 9791, 9793, 9823, 9833, 9844, 9880, 9881,
649 9891, 9893, 9895, 9913, 9916, 9920, 9948, 9955, 9957, 9963, 9985, 10052,
650 10069, 10086, 10087, 10090, 10092, 10093, 10100, 10118, 10128
652 * New interfaces: preadv, preadv64, pwritev, pwritev64, malloc_info
653 Implemented by Ulrich Drepper.
655 * New Linux interfaces: accept4, fallocate, fallocate64.
656 Implemented by Ulrich Drepper.
658 * Correct declarations of string function when used in C++ code. This
659 could lead to compile errors for invalid C++ code.
661 * XPG7/POSIX 2008 compilation environment. Many GNU-specific functions are
664 * New POSIX 2008 interface: psiginfo
665 Implemented by Ulrich Drepper.
667 * New ISO C++1x interfaces: quick_exit, at_quick_exit
668 Implemented by Ulrich Drepper.
670 * Support for selecting between multiple function definitions at runtime
671 using STT_GNU_IFUNC symbols. Implemented by Ulrich Drepper.
673 * The libcrypt library can now use the hash function implementations in
674 NSS. Implemented by Ulrich Drepper.
676 * The malloc implementation can be compiled to be less memory efficient
677 but higher performing in multi-threaded programs.
678 Implemented by Ulrich Drepper.
680 * New locales: nan_TW@latin, ks_IN
682 * Faster strlen, strchr, strchrnul, strrchr, memchr, and rawmemchr for x86-64.
683 Implemented by Ulrich Drepper.
685 * Extended printf hook support. It is possible to use user-defined types
686 and extend existing format specifiers.
687 Implemented by Ulrich Drepper.
689 * Handling for group shadow files has been added.
690 Implemented by Ulrich Drepper.
692 * DNS IPv4-IPv6 parallel lookup now deals better with broken DNS
693 servers (the case, e.g., for some people using the built-in DNS
694 server in ADSL modems/routers). There is a once-per-process timeout
695 in case of a broken server. To avoid it, users can run nscd or put
696 'options single-request' in /etc/resolv.conf.
697 Implemented by Ulrich Drepper.
701 * The following bugs are resolved with this release:
703 3406, 5209, 5210, 5381, 5794, 5814, 5911, 6428, 6438, 6442, 6447, 6461,
704 6472, 6505, 6544, 6589, 6612, 6634, 6653, 6654, 6657, 6698, 6712, 6713,
705 6719, 6723, 6724, 6740, 6763, 6771, 6790, 6791, 6817, 6824, 6839, 6843,
706 6845, 6856, 6857, 6860, 6867, 6875, 6919, 6920, 6942, 6947, 6955, 6966,
707 6968, 6974, 6980, 6995, 7008, 7009, 7029
709 * Unified lookup for getaddrinfo: IPv4 and IPv6 addresses are now looked
710 up at the same time. Implemented by Ulrich Drepper.
712 * TLS descriptors for LD and GD on x86 and x86-64.
713 Implemented by Alexandre Oliva.
715 * getaddrinfo now handles DCCP and UDPlite.
716 Implemented by Ulrich Drepper.
718 * New fixed-size conversion macros: htobe16, htole16, be16toh, le16toh,
719 htobe32, htole32, be32toh, le32toh, htobe64, htole64, be64toh, le64toh.
720 Implemented by Ulrich Drepper.
722 * New implementation of memmem, strstr, and strcasestr which is O(n).
723 Implemented by Eric Blake.
725 * New Linux interfaces: inotify_init1, dup3, epoll_create1, pipe2
727 * Implement "e" option for popen to open file descriptor with the
728 close-on-exec flag set. Implemented by Ulrich Drepper.
730 * Implement "b" mode for fmemopen. In this mode writes writes don't
731 implicitly add a NUL byte and seeks from the end of the buffer really
732 use the buffer end, not the string length as the basis.
733 Implemented by Ulrich Drepper.
735 * Many functions, exported and internal, now atomically set the close-on-exec
736 flag when run on a sufficiently new kernel. Implemented by Ulrich Drepper.
738 * Sorting rules for some Indian languages (Kannada, Gurumukhi, Telugu,
740 Implemented by Pravin Satpute.
742 * New locales: sd_IN, sd_IN@devanagari, ks_IN@devanagari, ht_HT, en_AG, nl_AW.
746 * The following bugs are resolved with this release:
748 2549, 3112, 4314, 4407, 4997, 5012, 5040, 5112, 5204, 5208, 5209, 5220,
749 5222, 5224, 5225, 5237, 5238, 5240, 5245, 5277, 5346, 5375, 5378, 5382,
750 5424, 5427, 5428, 5435, 5436, 5439, 5441, 5442, 5443, 5451, 5452, 5454,
751 5455, 5463, 5464, 5465, 5475, 5477, 5478, 5520, 5541, 5545, 5553, 5600,
752 5602, 5607, 5614, 5627, 5628, 5736, 5737, 5741, 5753, 5760, 5762, 5768,
753 5774, 5777, 5778, 5779, 5786, 5790, 5818, 5854, 5857, 5903, 5939, 5979,
754 5983, 5995, 5998, 6004, 6007, 6020, 6021, 6024, 6040, 6042
756 * New locales: bo_CN, bo_IN, shs_CA.
758 * New encoding: HP-ROMAN9, HP-GREEK8, HP-THAI8, HP-TURKISH8.
760 * Sorting rules for some Indian languages (Devanagari and Gujarati).
761 Implemented by Pravin Satpute.
763 * IPV6 addresses in /etc/resolv.conf can now have a scope ID
765 * nscd caches now all timeouts for DNS entries
766 Implemented by Ulrich Drepper.
768 * nscd is more efficient and wakes up less often.
769 Implemented by Ulrich Drepper.
771 * More checking functions: asprintf, dprintf, obstack_printf, vasprintf,
772 vdprintf, and obstack_vprintf.
773 Implemented by Jakub Jelinek.
775 * Faster memset for x86-64.
776 Implemented by Harsha Jagasia and H.J. Lu.
778 * Faster memcpy on x86.
779 Implemented by Ulrich Drepper.
781 * ARG_MAX is not anymore constant on Linux. Use sysconf(_SC_ARG_MAX).
782 Implemented by Ulrich Drepper.
784 * Faster sqrt and sqrtf implemention for some PPC variants.
785 Implemented by Steven Munroe.
789 * The following bugs are resolved with this release:
791 4125, 4126, 4178, 4359, 4407, 4512, 4514, 4525, 4554, 4556, 4557, 4566,
792 4582, 4586, 4588, 4599, 4610, 4647, 4702, 4705, 4726, 4745, 4772, 4773,
793 4775, 4776, 4792, 4813, 4814, 4816, 4833, 4858, 4860, 4896, 4905, 4925,
794 4936, 4937, 4938, 4941, 4946, 4963, 4972, 5010, 5028, 5043, 5058, 5063,
795 5071, 5103, 5104, 5112, 5113, 5184, 5186
797 * More checking functions: fread, fread_unlocked, open*, mq_open.
798 Implemented by Jakub Jelinek and Ulrich Drepper.
800 * Extend fortification to C++. Implemented by Jakub Jelinek.
802 * Implement 'm' modifier for scanf. Add stricter C99/SUS compliance
803 by not recognizing 'a' as a modifier when those specs are requested.
804 Implemented by Jakub Jelinek.
806 * PPC optimizations to math and string functions.
807 Implemented by Steven Munroe.
809 * New interfaces: mkostemp, mkostemp64. Like mkstemp* but allow additional
810 options to be passed. Implemented by Ulrich Drepper.
812 * More CPU set manipulation functions. Implemented by Ulrich Drepper.
814 * New Linux interfaces: signalfd, eventfd, eventfd_read, and eventfd_write.
815 Implemented by Ulrich Drepper.
817 * Handle private futexes in the NPTL implementation.
818 Implemented by Jakub Jelinek and Ulrich Drepper.
820 * Add support for O_CLOEXEC. Implement in Hurd. Use throughout libc.
821 Implemented by Roland McGrath and Ulrich Drepper.
823 * Linux/x86-64 vDSO support. Implemented by Ulrich Drepper.
825 * SHA-256 and SHA-512 based password encryption.
826 Implemented by Ulrich Drepper.
828 * New locales: ber_DZ, ber_MA, en_NG, fil_PH, fur_IT, fy_DE, ha_NG, ig_NG,
829 ik_CA, iu_CA, li_BE, li_NL, nds_DE, nds_NL, pap_AN, sc_IT, tk_TM, ug_CN,
832 + New iconv modules: MAC-CENTRALEUROPE, ISO-8859-9E, KOI8-RU.
833 Implemented by Ulrich Drepper.
837 * The following bugs are resolved with this release:
839 3156, 3213, 3285, 3291, 3306, 3313, 3320, 3322, 3325, 3326, 3334, 3348,
840 3352, 3363, 3369, 3426, 3427, 3429, 3451, 3458, 3465, 3480, 3483, 3493,
841 3514, 3515, 3559, 3632, 3664, 3673, 3674, 3745, 3747, 3818, 3840, 3842,
842 3851, 3855, 3884, 3885, 3902, 3905, 3919, 3944, 3954, 3955, 3957, 3991,
843 3995, 3996, 4024, 4040, 4069, 4070, 4074, 4076, 4096, 4101, 4102, 4114,
844 4130, 4131, 4181, 4276, 4306, 4342, 4344, 4349, 4364, 4368, 4381, 4392,
845 4403, 4405, 4406, 4411, 4438, 4439, 4455, 4456, 4465, 4512, 4514, 4586,
848 * New Linux interfaces: epoll_pwait, sched_getcpu.
850 * New generic interfaces: strerror_l.
852 * nscd can now cache the services database. Implemented by Ulrich Drepper.
856 * The following bugs are resolved with this release:
858 39, 68, 192, 352, 388, 531, 935, 1006, 1201, 1203, 1386, 1782, 1783, 1784,
859 1785, 1786, 1787, 1951, 1974, 1996, 2072, 2098, 2125, 2134, 2158, 2182,
860 2349, 2376, 2386, 2389, 2415, 2418, 2420, 2423, 2450, 2451, 2466, 2472,
861 2473, 2477, 2498, 2499, 2501, 2502, 2505, 2507, 2508, 2509, 2517, 2526,
862 2569, 2571, 2592, 2611, 2625, 2632, 2644, 2662, 2680, 2683, 2684, 2693,
863 2695, 2703, 2734, 2751, 2764, 2766, 2775, 2792, 2821, 2823, 2832, 2841,
864 2843, 2883, 2892, 2908, 2914, 2926, 2961, 2978, 2980, 2987, 2997, 2998,
865 3013, 3018, 3034, 3040, 3044, 3123, 3124, 3137, 3138, 3143, 3155, 3189,
866 3225, 3251, 3252, 3253, 3273
868 * For Linux, the sorting of addresses returned by getaddrinfo now also
869 handles rules 3, 4, and 7 from RFC 3484. I.e., all rules are handled.
870 Implemented by Ulrich Drepper.
872 * Allow system admin to configure getaddrinfo with the /etc/gai.conf file.
873 Implemented by Ulrich Drepper.
875 * New Linux interfaces: splice, tee, sync_file_range, vmsplice.
877 * New iconv module for MIK. Contributed by Alexander Shopov.
879 * For sites with broken group and/or passwd database, the auto-propagate
880 option of nscd can prevent creating ID lookup entries from the results
881 of a name lookup and vice versa. This usually is no problem but some
882 site might have problems with the default behavior.
883 Implemented by Ulrich Drepper.
885 * Iterating over entire database in NIS can be slow. With the
886 SETENT_BATCH_READ option in /etc/default/nss a system admin can decide
887 to trade time for memory. The entire database will be read at once.
888 Implemented by Ulrich Drepper.
890 * The interfaces introduced in RFC 3542 have been implemented by
893 * Support for the new ELF hash table format was added by Ulrich Drepper.
895 * Support for priority inheritance mutexes added by Jakub Jelinek and
898 * Support for priority protected mutexes added by Jakub Jelinek.
900 * New locales: nr_ZA, pa_PK, ca_AD, ca_FR, ca_IT, el_CY, tr_CY, as_IN,
901 or_IN, csb_PL, fy_NL, sr_ME.
905 * More overflow detection functions.
907 * New iconv converters for IBM1025, IBM1122, IBM1137, IBM1153,
908 IBM1154, IBM1155, IBM1156, IBM1157, and IBM1158 contributed by Jiro Sekiba.
910 More converters for IBM803, IBM901, IBM902, IBM921, IBM1008, IBM1097,
911 IBM1112, IBM1123, IBM1130, IBM1140, IBM1141, IBM1142, IBM1143, IBM1144,
912 IBM1145, IBM1146, IBM1147, IBM1148, IBM1149, IBM1166, IBM1167, IBM4517,
913 IBM4899, IBM4909, IBM4971, IBM5347, IBM9030, IBM9066, IBM9448, IBM12712,
914 IBM16804, IBM1364, IBM1371, IBM1388, IBM1390, and IBM1399 contributed
915 by Masahide Washizawa.
917 * It is now possible to install audit libraries for the dynamic linker using
918 LD_AUDIT. Implemented by Ulrich Drepper.
920 * The LinuxThreads add-on, providing pthreads on Linux 2.4 kernels, is no
921 longer supported. The new NPTL implementation requires Linux 2.6 kernels.
922 For a libc and libpthread that works well on Linux 2.4 kernels, we
923 recommend using the stable 2.3 branch.
925 * The new function open_wmemstream acts like open_memstream,
926 but uses a wchar_t wide character buffer.
928 * The new function ppoll is an improved version of poll, similar to pselect.
930 * New interfaces: fdopendir, openat, fstatat, fchmodat, fchownat,
931 futimesat, faccessat, mkdirat, mkfifoat, mknodat,
932 renameat, unlinkat, linkat, symlinkat, readlinkat.
934 * New Linux kernel system calls: unshare,
935 inotify_init, inotify_add_watch, inotify_rm_watch.
937 * The euidaccess function is now also known by the alias eaccess,
938 for compatibility with some other systems.
940 * Timezone data updated to 2006b version.
944 * The following bugs are resolved with this release:
946 38, 253, 549, 622, 653, 721, 758, 851, 877, 915, 934, 955, 961,
947 1016, 1037, 1076, 1079, 1080, 1081, 1082, 1083, 1084, 1085, 1086,
948 1087, 1088, 1090, 1091, 1092, 1093, 1094, 1095, 1096, 1097, 1098,
949 1099, 1100, 1101, 1102, 1103, 1104, 1105, 1106, 1107, 1108, 1109,
950 1110, 1111, 1112, 1113, 1125, 1137, 1138, 1249, 1250, 1251, 1252,
951 1253, 1254, 1350, 1358, 1394, 1438, 1498, 1534
953 Visit <http://sources.redhat.com/bugzilla/> for the details of each bug.
955 * As of this release, GCC 4 can be used to compile the C Library.
957 * Timezone data updated to 2005m version.
961 * The following bugs are resolved with this release:
963 284, 592, 602, 626, 633, 640, 650, 661, 671, 681, 693, 700, 710, 719,
964 722, 723, 725, 726, 727, 728, 729, 730, 731, 732, 733, 734, 735, 736,
965 737, 738, 739, 740, 741, 742, 743, 744, 745, 765, 767, 768, 769, 776,
966 777, 787, 821, 822, 823, 825
968 Visit <http://sources.redhat.com/bugzilla/> for the details of each bug.
972 * Support for RFC 3678. Real implementations exist only for Linux so far.
973 Implemented by Ulrich Drepper.
975 * nscd can now cache entries persistently. Expiring entries are reloaded.
976 For speedups the cache can be shared in memory with client processes.
977 Implemented by Ulrich Drepper.
979 * nscd can now perform SELinux checks.
980 Implemented by Matthew Rickard <mjricka@epoch.ncsc.mil>.
982 * getaddrinfo queries are now cached. Canonical name lookup is performed
984 Implemented by Ulrich Drepper.
986 * The nothrow function attribute is used when headers are used by gcc when
987 compiling C code. This can avoid significant amounts of exception
990 * The malloc functions perform more error checking and are stricter when
991 it comes to reacting on errors. The default action is to terminate
992 the process after showing an error message. Implemented by Ulrich Drepper.
994 * Reverse lookups of IPv6 addresses does not use bit string or .ip6.int
995 lookups anymore unless explicitly requested. Implemented by Ulrich Drepper.
997 * Namespaces in ld.so are implemented. DSOs can be loaded in separate
998 namespaces using the new function dlmopen(). This feature is of course,
999 like most other dynamic loading functionality, not available in statically
1000 linked applications. Implemented by Ulrich Drepper.
1002 * Low-overhead boundary checking variants of string and some stdio functions
1003 were added. These are to be used in conjunction with a gcc patch by
1004 Jakub Jelinek which adds calls to these functions if possible.
1005 Implemented by Jakub Jelinek and Ulrich Drepper.
1007 * Old code for several operating systems and machine architectures that
1008 have not been in working condition in a long time have been removed from
1009 the main source tree maintained by the GNU C Library's maintainers.
1010 These files are now reside in the separate `ports' source module
1011 that is usable as an add-on when building the library.
1015 * New functions `dladdr1' and `dlinfo' in <dlfcn.h> provide more ways to
1016 interrogate the dynamic linker, compatible with the Solaris interface.
1018 * ELF thread-local storage support (TLS) now works on PowerPC and PowerPC64;
1019 implemented by Paul Mackerras, Steven Munroe, and Roland McGrath.
1021 * getifaddrs now uses the netlink interface on Linux to get its information.
1022 Implemented by Thorsten Kukuk.
1024 * getaddrinfo now implements AI_V4MAPPED, AI_ALL, and AI_ADDRCONF.
1025 Implemented by Ulrich Drepper.
1027 * support for non-executable stacks on x86 has been added. Changes mostly
1030 * regex is now much faster for multibyte locales. Changes by Jakub Jelinek
1033 * getaddrinfo now performs destination address selection according to
1038 * Thread-safe interfaces for many functions that access locale data
1039 were added in version 2.3, but these features were omitted from NEWS.
1040 Many functions have variants with an `_l' suffix that take a `locale_t'
1041 object as a parameter rather than consulting the current locale.
1042 The new functions `newlocale', `duplocale', and `freelocale' in <locale.h>
1043 create and maintain `locale_t' objects. Additionally, the new function
1044 `uselocale' sets "the current locale" (as used by functions not so
1045 parameterized) set for an individual thread. These features were added
1046 in version 2.3, implemented by Ulrich Drepper and Roland McGrath.
1048 * The functions getresuid, getresgid, setresuid, and setresgid, which
1049 have long been available on Linux, are now declared in <unistd.h>
1050 and are now also available on the Hurd.
1052 * ELF thread-local storage support (TLS) now works on x86-64.
1054 * The new dynamic string token $LIB is expanded in shared library names.
1055 This normally expands to lib, but on some 64-bit platforms to lib64 instead.
1057 * Aldy Hernandez contributed complete software floating point support for
1058 PowerPC machines with no FPU.
1060 * fexecve is implemented on Linux.
1062 * The `btowc' function should work at least twice as fast due to
1063 specialized callbacks in the iconv modules. Implemented by Bruno Haible.
1065 * With approriate thread add-ons cancelable functions are now implemented
1066 in libc.so as well. No need to call the function in libpthread. This
1067 change allowed to finally disable the incorrect and expensive handling
1068 of weak definition in ld.so.
1070 * Yet more PLT entries in libc.so have been removed. We finally arrived
1071 at the bare minimum. Startup times improved appropriately.
1073 * Support for the new Linux/x86 system call interface was added. The
1074 AT_SYSINFO auxiliary vector entry is recognized and handled.
1078 * Masahide Washizawa contributed iconv modules for IBM1163 and IBM1164
1081 * iconv (the program and the interface) now accepts empty names (excluding
1082 options like //TRANSLIT) to mean "use charset of current locale".
1084 * localedef can now transliterate characters in strings which are not in
1085 the provided charmap. The information from the input locale is used.
1087 * Prelinking support was added for ELF targets. This requires additional
1088 tools and recent versions of the GNU binutils. Contributed by Jakub Jelinek.
1090 * Read-only stdio streams now use mmap to speed up operation by eliminating
1091 copying and buffer underflows. To use add 'm' to the mode string of
1092 the fopen/fdopen/freopen call. Implemented by Ulrich Drepper.
1094 * The malloc functions were completely rewritten by Wolfram Gloger based
1095 on Doug Lea's malloc-2.7.0.c.
1097 * Isamu Hasegawa contributed a completely new and POSIX-conformant
1098 implementation of regex.
1100 * Bruno Haible upgraded the iconv and locale implementation to support
1103 * Contents of the LC_* and LANG environment variables in the CEN style are
1104 not recognized anymore. It never was used. Change by Ulrich Drepper.
1106 * The runtime (ld.so, libc, libpthread for Linux) now can handle the ELF
1107 thread-local storage (TLS) ABI on some platforms.
1108 Changes by Ulrich Drepper. SH support by Kaz Kojima.
1110 * Bruno Haible contributed iconv converters for ISO-2022-JP-3, SHIFT JIS-X0213,
1111 EUC-JISX0213, and TSCII.
1113 * New header <ifaddrs.h> with functions `getifaddrs' and `freeifaddrs':
1114 BSD-compatible interface for getting all network interface addresses.
1115 Implementation for IPv4 by Roland McGrath.
1117 * Loading of locale data is faster due to the introduction of a locale
1118 archive. Implemented by Roland McGrath and Ulrich Drepper.
1120 * Startup times are significantly reduced by not using exported functions
1121 inside the library itself. Changes by Jakub Jelinek, Roland McGrath,
1124 * Steven Munroe contributed a port to PowerPC64/Linux.
1128 * The Hurd now uses the GNU libio implementation of stdio rather than the
1129 old GNU stdio implementation, and uses a new ABI (libc.so.0.3).
1131 * The Hurd on x86 now has the `ioperm' function and <sys/io.h> header file
1132 with the same behavior as the Linux system call of the same name.
1136 * Stephen Moshier implemented log2, log10, powl and cbrtl for the
1137 128-bit long double format.
1139 * Masahide Washizawa contributed iconv modules for IBM1132, IBM1133, IBM1160,
1140 IBM1161, and IBM1162 charsets.
1142 * Andreas Jaeger contributed a port to x86-64/Linux.
1144 * Peter Bruin contributed a port to PowerPC/Hurd.
1146 * libc functions using I/O streams now can handle wide-oriented streams
1149 * optimizations in the dynamic linker. Binaries created by recent binutils
1150 versions start up quicker due to reduced time spent on relocations.
1152 * Support for use of gcc3 added by Jakub Jelinek and HJ Lu.
1156 * Stephen Moshier implemented cosh, expm1, log1p, acos, sinh, tanh,
1157 asinh, atanh, j0 for the 128-bit long double format.
1159 * Bruno Haible updated all the code handling Unicode in some form to
1160 support Unicode 3.1.
1162 * Speed of regex for single-byte locales is back to previous levels.
1163 Patch by Isamu Hasegawa.
1165 * Alpha, SPARC, and IA-64 now also using floating stacks.
1167 * Startup time of internationalized applications greatly improved through
1168 iconv cache. Use iconvconfig to generate the cache file.
1169 Contributed by Ulrich Drepper.
1171 * The IA-64 specific part of ld.so was rewritten to eliminate some pretty
1172 severe performance problems. Patch by David Mosberger.
1174 * The Hurd port got a lot more functionality like AIO, various stdio
1175 extensions, etc. Mainly done by Roland McGrath.
1177 * mtrace can now lookup symbols in shared libraries.
1181 * Intel's IA-64 math library is largely integrated. It provides fast and
1182 accurate implementatations for most basic and standard math functions
1183 in float, double, and long double format.
1185 * Stephen Moshier implemented j0, j1, jn, y0, y1, yn, lgamma, erf, erfc,
1186 and asin for the 96-bit long double format and asin, log, tan for the
1187 128-bit long double format.
1189 * The beginning of a last-bit accurate math library by IBM Haifa were added.
1190 The basic double functions exist today. Contributed by Abraham Ziv
1191 <ziv@il.ibm.com>, Moshe Olshansky <olshansk@il.ibm.com>, Ealan Henis
1192 <ealan@il.ibm.com>, and Anna Reitman <reitman@il.ibm.com>.
1194 * An asynchronous name lookup library was added. The interface is designed
1195 after POSIX AIO. The proposal was circulated beforehand to get comments.
1196 No negative ones came in. Implemented by Ulrich Drepper.
1198 * Port to S390/64bit contributed by Martin Schwidefsky
1199 <schwidefsky@de.ibm.com>.
1201 * David Mosberger <davidm@hpl.hp.com> implemented the setcontext family
1202 of functions for Linux/IA-64.
1204 * The RPC code is now thread safe. Threads can now use the same service
1205 of different services at the same time. Patch by Eric Norum
1206 <eric.norum@usask.ca> with some help by Ulrich Drepper.
1208 * Martin Schwidefsky <schwidefsky@de.ibm.com> implemented the setcontext
1209 family of functions for Linux/S390.
1211 * Ulrich Drepper <drepper@redhat.com> implemented the setcontext family
1212 of functions for Linux/x86.
1214 * Port to Linux/CRIS contributed by Axis Communications.
1218 * Lots of headers were cleaned up. Using the tool in the conform/ subdir
1219 we can now check for namespace violations and missing declarations. The
1220 result is that almost all headers are now Unix-compliant (as defined in
1221 the upcoming XPG6). The negative side is that some programs might need
1222 corrections, too, if they depend on the incorrect form of the headers in
1223 previous versions which defined too many symbols and included too many
1226 * regex now handles multibyte character sets correctly.
1227 Contributed by Isamu Hasegawa <isamu@yamato.ibm.com>.
1229 * iconv (the program) does now conform to the upcoming XPG6 and handles
1230 charmaps. Instead of the charset names the path of charmaps can be
1231 provided and the conversion happens based on this data.
1232 Contributed by Ulrich Drepper.
1234 * The locale program now provides detailed information about the installed
1239 only lists the names of the supported locales
1243 provides details such as country, language, and codeset name.
1244 Contributed by Ulrich Drepper.
1248 * The gencat program now parses the input file according to the charset
1249 selected by the LC_CTYPE category. This is important for stateful
1250 character sets. To make generating catalogs easier there is a way
1251 to overwrite the charset selected by the locale: before the first
1252 message or $ quote line the catalog can contain a line like
1254 $ codeset=ISO-8859-2
1256 to select the charset (ISO-8859-2 in this case).
1258 Implemented by Shinya Hanataka and Ulrich Drepper.
1260 * New codeset conversion modules: IBM-922 (Estonia PC codeset),
1261 IBM-1124 (Ukraine PC codeset), IBM-1129 (Vietnamese PC codeset).
1262 Contributed by Masahide Washizawa <washi@jp.ibm.com>.
1264 * Optimized string functions for Alpha ev6 and ev67 by Richard Henderson
1265 <rth@redhat.com> and Rick Gorton <rick.gorton@alpha-processor.com>.
1267 * The LANGUAGE environment variable is now ignored unless the locale is
1268 changed from the default "C" locale.
1270 * The usual bug fixes.
1274 * Greg McGary added runtime support for bounds checking using gcc's
1275 new -fbounded-pointers option. ix86 target is complete. PowerPC
1278 * Thorsten Kukuk added secure mode support to nscd.
1280 * The Berkeley db libraries have been removed.
1282 Related, the nss_db module is now in a separate package since it
1283 obviously requires a database library being available.
1285 * Wide character I/O streams implemented by Ulrich Drepper.
1287 * Functions from the extended socket API added by Ulrich Drepper.
1289 * Functions feenableexcept and fedisableexcept to control the
1290 behaviour of individual exceptions have been added by Andreas Jaeger.
1292 * ldconfig program added by Andreas Jaeger and Jakub Jelinek.
1294 * The resolver code has been updated from bind 8.2.3-T5B which supports
1295 threads. The integration was done by Andreas Jaeger, Adam D. Bradley,
1298 This change could in some situations effect backward compatibility. Since
1299 now `_res' is a thread-local instead of a global variable, modifying it
1300 in one thread does not have any effect in other threads.
1302 The resolver library was also extended to allow IPv6 as the transport
1303 protocol for the requests. This work was done by Stig Venaas.
1305 * Compatibility code for K&R C compilers has been removed from the
1306 header files. A ISO C compiler is needed to use the library
1307 (conforming to either C89 or C99 standard).
1309 * Complete rewrite of the localedef program to support multibyte character
1310 sets. Implement handling of ISO 14651 and ISO 14652. Rewrite strcoll,
1311 strxfrm, wcscoll, and wcsxfrm functions. Make isw*() functions work.
1312 Implemented by Ulrich Drepper.
1314 Bruno Haible significantly improved the generation and use of the data
1315 structures for the wide character tables.
1317 * Plural handling in gettext implemented by Ulrich Drepper.
1319 * The utmp daemon has been removed.
1321 * The port to MIPS-Linux has been finished by Andreas Jaeger.
1323 * A port to Hitachi SH3 and SH4 has been contributed by Kazumoto Kojima
1326 * POSIX clocks and timers implemented by Kaz Kylheku and Ulrich Drepper.
1328 * POSIX barriers implemented by Kaz Kylheku.
1330 * POSIX spawn function family implemented by Ulrich Drepper.
1332 * POSIX spinlocks are now available.
1334 * Timed wait functions for mutex, rwlock, and semaphores are implemented.
1336 * the configure option --enable-kernel=X.Y.Z allows to strip out
1337 compatibility for kernel versions before X.Y.Z. This is currently only
1338 implemented for Linux.
1340 * the sockaddr_in6 structure changed. The IPv6 working group added a new
1341 field sin6_scope_id. This means that all programs using IPv6 should be
1342 recompiled. Don't expect binary compatibility with previous glibc
1345 * various conversion modules for IBM character sets contributed by
1348 * IA-64 port by Jes Sorensen and HJ Lu.
1362 * New ISO C 9x function _Exit, imaxabs, and imaxdiv are added.
1364 * New xdr functions are added; some rpc functions are now 64bit clean.
1366 * Fixed a number of bugs and memory leaks (especially in NIS+ code).
1368 * Fixed known incompatibilities with glibc 2.0.
1370 * New functions lock64, strchrnul, rawmemchr, getutmp and getutmpx.
1372 * Optimized a number of functions (especially the ELF dynamic loader).
1374 * Update timezone data files.
1376 * lots of charmaps corrections
1378 * some new locale definitions and charmaps
1383 * Richard Henderson corrected size of struct timeval on Linux/Alpha to
1384 conform to POSIX member type requirements. Symbol versions have been
1385 adjusted as needed within the library, and for direct use by applications,
1386 but there is potential for problems if third-party libraries use
1387 struct timeval as part of their interface. This does not present
1388 a problem for X and other "essential" system libraries.
1390 * An additional locale model to support C++ Standard Library locale
1391 model and probably more was implemented by Ulrich Drepper.
1393 * Eric Youngdale and Ulrich Drepper implemented versioning of objects on
1396 * Miles Bader provided the `argp' function family to support hierachical
1397 command line argument parsing, layered on top of getopt.
1399 * strtod accepts new hexadecimal floating-point format from ISO C 9X.
1401 * printf has two new specifiers %a and %A to print hexadecimal flaoting-point
1404 * scanf recognizes the %a and %A format for scanning floating point numbers.
1406 * the new headers <stdint.h> and <inttypes.h> from ISO C 9X provides
1407 information and interfaces for the available integer types.
1409 * about 130 new math functions were added to implement the ISO C9x math
1412 * the new header <complex.h> contains definitions of the complex math
1413 functions from ISO C 9X.
1415 * the new header <tgmath.h> defines generic macros to use complex or
1416 real valued functions.
1418 * Thorsten Kukuk provided an implementation for NIS+, securelevel 0, 1 and 2.
1420 * Andreas Jaeger provided a test suite for the math library.
1422 * Mark Kettenis implemented the utmpx interface and an utmp daemon.
1424 * Ulrich Drepper added character set conversion functions (iconv).
1426 * Optimized string functions have been added.
1428 * The localedata addon is now part of glibc.
1430 * An implementation of profiling shared libraries was added by Ulrich Drepper.
1432 * Thorsten Kukuk and Ulrich Drepper provided an implementation for a caching
1433 daemon for NSS (nscd).
1435 Missing a better place here are some numbers on improvements. Under
1436 Linux 2.1.125 un-tar-ing the kernel sources takes
1440 using local files 12.19s 6.88s 22.91s
1442 using NIS 13.92s 8.91s 26.34s
1444 using NIS & nscd 10.37s 7.34s 25.30s
1446 using NIS+ 27.57s 30.37s 640.46s
1448 using NIS+ & nscd 10.25s 7.83s 26.51s
1450 using NIS & old nscd [1] 13.83s 8.32s 29.60s
1452 Keep in mind that non-namelookup related operations dominate above times.
1453 It was just a common complain that using NIS+ unpacking the kernel is
1456 [1] The old nscd implementation is not available anymore since it was
1457 distributed with glibc up to version 2.0.98 and thus is now replaced.
1459 * Tim Waugh provided an implementation of the POSIX.2 wordexp function family.
1461 * Mark Kettenis provided a Hesiod NSS module.
1463 * The ELF dynamic loader knows how to process dynamic string tokens ($ORIGIN
1464 and $PLATFORM) in RPATHs and similar strings (Ulrich Drepper).
1466 * rcmd can now handle netgroups (Dick Streefland).
1468 * A port to the ARM was contributed by Phil Blundell, Pat Beirne and Scott
1471 * Support for the IPv6 protocol has been added to the socket API, as per the
1472 latest draft standards.
1474 * Support for Linux 2.2 has been added.
1476 * Interface changes relative to the latest 2.0.x release:
1477 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1478 addseverity NEW: Unix98
1479 alphasort64 NEW: LFS
1480 argp_err_exit_status NEW: argp, GNU ext
1481 argp_error NEW: argp, GNU ext
1482 argp_failure NEW: argp, GNU ext
1483 argp_help NEW: argp, GNU ext
1484 argp_parse NEW: argp, GNU ext
1485 argp_program_bug_address NEW: argp, GNU ext
1486 argp_program_version NEW: argp, GNU ext
1487 argp_program_version_hook NEW: argp, GNU ext
1488 argp_state_help NEW: argp, GNU ext
1489 argp_usage NEW: argp, GNU ext
1490 authdes_create NEW: Secure RPC
1491 authdes_getucred NEW: Secure RPC
1492 authdes_pk_create NEW: Secure RPC
1493 backtrace NEW: GNU ext.
1494 backtrace_symbols NEW: GNU ext.
1495 backtrace_symbols_fd NEW: GNU ext.
1497 cacosf NEW: ISO C 9x
1498 cacosh NEW: ISO C 9x
1499 cacoshf NEW: ISO C 9x
1500 cacoshl NEW: ISO C 9x
1501 cacosl NEW: ISO C 9x
1508 casinf NEW: ISO C 9x
1509 casinh NEW: ISO C 9x
1510 casinhf NEW: ISO C 9x
1511 casinhl NEW: ISO C 9x
1512 casinl NEW: ISO C 9x
1514 catanf NEW: ISO C 9x
1515 catanh NEW: ISO C 9x
1516 catanhf NEW: ISO C 9x
1517 catanhl NEW: ISO C 9x
1518 catanl NEW: ISO C 9x
1519 cbc_crypt NEW: Secure RPC
1523 ccoshf NEW: ISO C 9x
1524 ccoshl NEW: ISO C 9x
1530 cimagf NEW: ISO C 9x
1531 cimagl NEW: ISO C 9x
1532 clearerr_locked REMOVED
1533 clntunix_create NEW: sunrpc ext
1535 clog10 NEW: ISO C 9x
1536 clog10f NEW: ISO C 9x
1537 clog10l NEW: ISO C 9x
1547 cprojf NEW: ISO C 9x
1548 cprojl NEW: ISO C 9x
1550 crealf NEW: ISO C 9x
1551 creall NEW: ISO C 9x
1556 csinhf NEW: ISO C 9x
1557 csinhl NEW: ISO C 9x
1560 csqrtf NEW: ISO C 9x
1561 csqrtl NEW: ISO C 9x
1565 ctanhf NEW: ISO C 9x
1566 ctanhl NEW: ISO C 9x
1568 des_setparity NEW: Secure RPC
1569 ecb_crypt NEW: Secure RPC
1570 endutxent NEW: Unix98
1572 exp10f NEW: ISO C 9x
1573 exp10l NEW: ISO C 9x
1577 fattach NEW: STREAMS
1578 fdetach NEW: STREAMS
1582 feclearexcept NEW: ISO C 9x
1583 fegetenv NEW: ISO C 9x
1584 fegetexceptflag NEW: ISO C 9x
1585 fegetround NEW: ISO C 9x
1586 feholdexcept NEW: ISO C 9x
1588 feraiseexcept NEW: ISO C 9x
1589 ferror_locked REMOVED
1590 fesetenv NEW: ISO C 9x
1591 fesetexceptflag NEW: ISO C 9x
1592 fesetround NEW: ISO C 9x
1593 fetestexcept NEW: ISO C 9x
1594 feupdateenv NEW: ISO C 9x
1595 fflush_locked REMOVED
1599 fgets_unlocked NEW: GNU ext.
1600 fileno_locked REMOVED
1612 fputc_locked REMOVED
1613 fputs_unlocked NEW: GNU ext.
1614 fread_unlocked NEW: GNU ext.
1619 fstatvfs NEW: Unix98
1623 ftruncate64 NEW: LFS
1625 fwrite_unlocked NEW: GNU ext.
1626 gai_strerror NEW: IPv6
1630 getchar_locked REMOVED
1632 getdate_err NEW: Unix98
1633 getdate_r NEW: GNU ext.
1635 getnameinfo NEW: IPv6
1636 getnetname NEW: Secure RPC
1637 getpmsg NEW: STREAMS
1638 getpt NEW: Unix98 PTY
1639 getrlimit64 NEW: LFS
1640 getutxent NEW: Unix98
1641 getutxid NEW: Unix98
1642 getutxline NEW: Unix98
1643 glob64 NEW: GNU ext.
1644 globfree64 NEW: GNU ext.
1645 gnu_get_libc_release NEW: GNU ext.
1646 gnu_get_libc_version NEW: GNU ext.
1647 grantpt NEW: Unix98 PTY
1648 host2netname NEW: Secure RPC
1650 iconv_close NEW: iconv
1651 iconv_open NEW: iconv
1652 if_freenameindex NEW: IPv6
1653 if_indextoname NEW: IPv6
1654 if_nameindex NEW: IPv6
1655 if_nametoindex NEW: IPv6
1656 in6addr_any NEW: IPv6
1657 in6addr_loopback NEW: IPv6
1658 inet6_isipv4mapped NEW: IPv6
1659 isastream NEW: STREAMS
1660 iswblank NEW: GNU ext.
1661 key_decryptsession NEW: Secure RPC
1662 key_decryptsession_pk NEW: Secure RPC
1663 key_encryptsession NEW: Secure RPC
1664 key_encryptsession_pk NEW: Secure RPC
1665 key_gendes NEW: Secure RPC
1666 key_get_conv NEW: Secure RPC
1667 key_secretkey_is_set NEW: Secure RPC
1668 key_setnet NEW: Secure RPC
1669 key_setsecret NEW: Secure RPC
1670 llrint NEW: ISO C 9x
1671 llrintf NEW: ISO C 9x
1672 llrintl NEW: ISO C 9x
1673 llround NEW: ISO C 9x
1674 llroundf NEW: ISO C 9x
1675 llroundl NEW: ISO C 9x
1680 lrintf NEW: ISO C 9x
1681 lrintl NEW: ISO C 9x
1682 lround NEW: ISO C 9x
1683 lroundf NEW: ISO C 9x
1684 lroundl NEW: ISO C 9x
1686 makecontext NEW: Unix98
1687 mempcpy NEW: GNU ext.
1690 modify_ldt NEW: kernel
1694 nearbyint NEW: ISO C 9x
1695 nearbyintf NEW: ISO C 9x
1696 nearbyintl NEW: ISO C 9x
1697 netname2host NEW: Secure RPC
1698 netname2user NEW: Secure RPC
1699 nexttoward NEW: ISO C 9x
1700 nexttowardf NEW: ISO C 9x
1701 nexttowardl NEW: ISO C 9x
1705 passwd2des NEW: Secure RPC
1707 pow10f NEW: GNU ext.
1708 pow10l NEW: GNU ext.
1711 printf_size NEW: GNU ext.
1712 printf_size_info NEW: GNU ext.
1713 profil_counter REMOVED
1714 pthread_mutexattr_getkind_np REPLACED
1715 pthread_mutexattr_setkind_np REPLACED
1716 ptsname NEW: Unix98 PTY
1717 ptsname_r NEW: Unix98 PTY
1719 putchar_locked REMOVED
1720 putgrent NEW: GNU ext.
1722 putpmsg NEW: STREAMS
1723 pututxline NEW: Unix98
1727 readdir64_r NEW: LFS
1728 remquo NEW: ISO C 9x
1729 remquof NEW: ISO C 9x
1730 remquol NEW: ISO C 9x
1732 roundf NEW: ISO C 9x
1733 roundl NEW: ISO C 9x
1735 scalbln NEW: ISO C 9x
1736 scalblnf NEW: ISO C 9x
1737 scalblnl NEW: ISO C 9x
1739 sendfile NEW: kernel
1740 setcontext NEW: Unix98
1741 setrlimit64 NEW: LFS
1742 setutxent NEW: Unix98
1744 sigignore NEW: Unix98
1745 sigqueue NEW: POSIX.1b
1746 sigrelse NEW: Unix98
1747 sigset NEW: POSIX.1b
1748 sigtimedwait NEW: POSIX.1b
1749 sigwaitinfo NEW: POSIX.1b
1750 sincos NEW: GNU ext.
1751 sincosf NEW: GNU ext.
1752 sincosl NEW: GNU ext.
1756 strcasestr NEW: GNU ext.
1757 strtoimax NEW: ISO C 9x
1758 strtoumax NEW: ISO C 9x
1759 strverscmp NEW: GNU ext.
1760 svcauthdes_stats NEW: Secure RPC
1761 svcunix_create NEW: sunrpc etx
1762 svcunixfd_create NEW: sunrpc ext
1763 swapcontext NEW: Unix98
1764 tcgetsid NEW: Unix98 PTY
1765 tdestroy NEW: GNU ext.
1766 tgamma NEW: ISO C 9x
1767 tgammaf NEW: ISO C 9x
1768 tgammal NEW: ISO C 9x
1772 truncf NEW: ISO C 9x
1773 truncl NEW: ISO C 9x
1775 unlockpt NEW: Unix98 PTY
1776 updwtmpx NEW: Unix98
1777 user2netname NEW: Secure RPC
1778 utmpxname NEW: Unix98
1779 versionsort NEW: GNU ext.
1780 versionsort64 NEW: GNU ext.
1782 wcscasecmp NEW: GNU ext.
1783 wcsncasecmp NEW: GNU ext.
1784 wcsnlen NEW: GNU ext.
1785 wcstoimax NEW: ISO C 9x
1786 wcstoll NEW: ISO C 9x
1787 wcstoull NEW: ISO C 9x
1788 wcstoumax NEW: ISO C 9x
1790 wordexp NEW: POSIX.2
1791 wordfree NEW: POSIX.2
1792 write_profiling REMOVED
1793 xdecrypt NEW: Secure RPC
1794 xdr_authdes_cred NEW: Secure RPC
1795 xdr_authdes_verf NEW: Secure RPC
1796 xdr_cryptkeyarg NEW: Secure RPC
1797 xdr_cryptkeyarg2 NEW: Secure RPC
1798 xdr_cryptkeyres NEW: Secure RPC
1799 xdr_getcredres NEW: Secure RPC
1800 xdr_key_netstarg NEW: Secure RPC
1801 xdr_key_netstres NEW: Secure RPC
1802 xdr_keybuf NEW: Secure RPC
1803 xdr_keystatus NEW: Secure RPC
1804 xdr_netnamestr NEW: Secure RPC
1805 xdr_sizeof NEW: Secure RPC
1806 xdr_unixcred NEW: sunrpc ext
1807 xencrypt NEW: Secure RPC
1808 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1819 * inet_ntoa is thread-safe
1821 * updwtmp is moved from libutil to libc
1823 * rewrite of cbrt function
1825 * update of timezone data
1839 * add atoll function
1841 * fix complex problems in Berkeley DB code
1843 * fix math functions
1847 * fixed lots of header problems (especially Linux/GNU specific)
1849 * dynamic loader preserves all registers
1851 * Roland McGrath provided support for handling of auxiliary objects in
1852 the ELF dynamic loader.
1854 * support for parallel builds is improved
1858 * GNU extensions are no longer declared by default. To enable them you
1859 must define the macro `_GNU_SOURCE' in your program or compile with
1862 * The library has changed from using GNU ld symbol aliases to using weak
1863 symbols where available. The ELF object file format supports weak
1864 symbols; GNU ld also supports weak symbols in the a.out format. (There
1865 is also now support for other GNU ld extensions in ELF. Use the
1866 `--with-elf' option to configure to indicate you have ELF, and
1867 `--with-gnu-ld' if using GNU ld.) This change resulted in the deletion
1868 of many files which contained only symbol aliases, reducing the size of
1869 the source and the compiled library; many other files were renamed to
1870 less cryptic names previously occupied by the symbol alias files.
1871 There is a new header file <elf.h> for programs which operate on
1872 files in the ELF format.
1874 * Converted to Autoconf version 2, so `configure' has more options.
1875 Run `configure --help' to see the details.
1877 * The library can now be configured to build profiling, highly-optimized
1878 (but undebuggable), and/or shared libraries (ELF with GNU ld only). The
1879 `--enable-profile', `--enable-omitfp', and `--enable-shared' options to
1880 `configure' enable building these extra libraries. The shared library is
1881 built by default when using both ELF and GNU ld. When shared libraries
1882 are enabled, the new library `-ldl' is available for arbitrary run-time
1883 loading of shared objects; its interface is defined in <dlfcn.h>. The
1884 new header file <link.h> gives access to the internals of the run-time
1885 dynamic linker, `ld.so'. The shell script `ldd' is similar to the
1886 application of same name on other systems and it provides information
1887 about dynamically linked binaries.
1889 * The C library now provides the run-time support code for profiling
1890 executables compiled with `-pg'. Programs can control the profiling code
1891 through the interface in <sys/gmon.h>. The `gmon.out' files written by
1892 the GNU C library can be read only by GNU `gprof' (from GNU binutils);
1893 the support for this file format was contributed by David Mosberger-Tang.
1895 * The math code has been replaced with a math library based on fdlibm from
1896 Sun, and modified by JT Conklin and Ulrich Drepper with i387 support, by
1897 Ian Taylor with `float' functions and by Ulrich Drepper with `long double'
1898 functions. The math functions now reside in a separate library, so
1899 programs using them will need to use `-lm' their linking commands.
1901 * John C. Bowman contributed optimized ix87 assembler inline functions.
1903 * Ulrich Drepper has contributed support for an `/etc/nsswitch.conf'
1904 mechanism similar to that found in Solaris 2. This is now used for the
1905 group, passwd, hosts, networks, services, protocols, rpc, ethers,
1906 shadow, netgroup, publickey, and alias databases. The `nsswitch.conf'
1907 file controls what services are used for each individual database. This
1908 works by loading shared libraries with names specified in `nsswitch.conf',
1909 so service modules can be changed or added at any time without even
1910 relinking any program. Currently there are the file, db, and NIS based
1911 NSS services available.
1913 * The new functions `strtoq' and `strtouq' parse integer values from
1914 strings, like `strtol' and `strtoul', but they return `long long int' and
1915 `unsigned long long int' values, respectively (64-bit quantities).
1917 * The new functions `strtof' and `strtold' parse floating-point values from
1918 strings, like `strtod', but they return `float' and `long double' values,
1919 respectively (on some machines `double' and `long double' are the same).
1921 * Ulrich Drepper has contributed new implementations of the floating-point
1922 printing and reading code used in the `printf' family of functions and
1923 `strtod', `strtof', and `strtold'. These new functions are perfectly
1924 accurate, and much faster than the old ones.
1926 * The implementation of the POSIX locale model was completely rewritten by
1927 Ulrich Drepper. This includes the new programs `localedef' and `locale'
1928 to compile the POSIX locale definition.
1930 * The former dummy implementations of the strcoll and strxfrm function are
1931 now replaced by fully functional code contributed by Ulrich Drepper. The
1932 collation information comes from the POSIX locale definitions.
1934 * The new header <langinfo.h> defines an interface for accessing
1935 various locale-dependent data (using the locale chosen with `setlocale').
1937 * Ulrich Drepper has contributed a new suite of functions for operation on
1938 wide-character and multibyte-character strings, in <wchar.h>;
1939 and classification and case conversion of wide characters, in <wctype.h>.
1940 These new functions are conforming to the ISO C, Amendement 1 specification.
1942 * There is now a second implementation of the standard I/O library available.
1943 It comes from GNU libg++ as was written by Per Bothner, heavily modified
1944 by Hongjiu Lu and made thread safe by Ulrich Drepper.
1946 * You can now use positional parameter specifications in format strings
1947 for the `printf' and `scanf' families of functions. For example,
1948 `printf ("Number %2$d, Mr %1$s\n", "Jones", 6);'' prints
1949 ``Number 6, Mr Jones''. This is mainly useful when providing different
1950 format strings for different languages, whose grammars may dictate
1951 different orderings of the values being printed. To support this
1952 feature, the interface for `register_printf_handler' has changed; see
1953 the header file <printf.h> for details.
1955 * The `printf' and `scanf' families of functions now understand a new
1956 formatting flag for numeric conversions: the ' flag (e.g. %'d or %'f) says
1957 to group numbers as indicated by the locale; for `scanf' and friends, this
1958 says to accept as valid only a number with all the proper grouping
1959 separators in the right places. In the default "C" locale, numbers are
1960 not grouped; but locales for specific countries will define the usual
1961 conventions (i.e. separate thousands with `,' in the US locale).
1963 * The pgrp functions have been regularized, slightly incompatibly but much
1964 less confusingly. The core functions are now `getpgid' and `setpgid',
1965 which take arguments for the PID to operate on; the POSIX.1 `getpgrp' (no
1966 argument) and BSD `setpgrp' (identical to `setpgid') functions are
1967 provided for compatibility. There is no longer an incompatible `getpgrp'
1968 with an argument declared under _BSD_SOURCE; no BSD code uses it.
1970 * The new header file <fts.h> and suite of functions simplify programs that
1971 operate on directory trees. This code comes from 4.4 BSD.
1973 * The resolver code has been updated from the BIND 4.9.5-P1 release.
1974 Parts of the code were heavily modified by Ulrich Drepper to fit in the
1975 NSS scheme used in glibc.
1977 * There is a new malloc debugging hook `__memalign_hook'.
1979 * There are new typedefs `ushort' for `unsigned short int' and `uint' for
1980 `unsigned int' in <sys/types.h>. These are for compatibility only and
1981 their use is discouraged.
1983 * The `-lmcheck' library to enable standard malloc debugging hooks is now
1984 done differently, so that it works even without GNU ld.
1986 * New function `euidaccess' checks allowed access to a file like `access',
1987 but using the effective IDs instead of the real IDs.
1989 * The time zone data files have been updated for the latest and greatest
1990 local time conventions of the countries of the world.
1992 * The new function `dirfd' extracts the file descriptor used by a DIR stream;
1995 * The new functions `ecvt', `fcvt', and `gcvt' provide an obsolete interface
1996 for formatting floating-point numbers. They are provided only for
1997 compatibility; new programs should use `sprintf' instead. There are
1998 also equivalent function for the `long double' floating-point type and
1999 all functions also exist in a reentrant form.
2001 * The new auxiliary library `-lutil' from 4.4 BSD contains various
2002 functions for maintaining the login-record files (primarily of use to
2003 system programs such as `login'), and convenient functions for
2004 allocating and initializing a pseudo-terminal (pty) device.
2006 * Ulrich Drepper has contributed new support for System V style
2007 shared memory and IPC on systems that support it.
2009 * Ulrich Drepper has contributed several miscellaneous new functions found
2010 in System V: The `hsearch' family of functions provide an effective
2011 implementation of hash tables; `a64l' and `l64a' provide a very simple
2012 binary to ASCII mapping; `drand48' and friends provide a 48-bit random
2015 * Ulrich Drepper has contributed new reentrant counterparts for the
2016 `random' and `hsearch' families of functions; `random_r', `hsearch_r', etc.
2018 * Ulrich Drepper has contributed new, highly-optimized versions of several
2019 string functions for the i486/Pentium family of processors.
2021 * Ulrich Drepper has updated the Linux-specific code, based largely
2022 on work done in Hongjiu Lu's version of GNU libc for Linux.
2023 The GNU library now supports Linux versions 2.0.10 and later,
2024 using the ELF object file format (i[3456]86-*-linux).
2026 * Andreas Schwab has ported the C library to Linux/m68k (m68k-*-linux).
2028 * David Mosberger-Tang and Richard Henderson have ported the C library
2029 to Linux/Alpha (alpha-*-linux). Richard Henderson contributed the
2030 dynamic linking support for ELF/Alpha.
2032 * Richard Henderson contributed several Alpha optimized assembler function
2033 for arithmetic and string handling.
2035 * Ulrich Drepper has contributed a new set of message catalog functions to
2036 support multiple languages using the <libintl.h> interface, for use with
2037 his new package GNU gettext. Translation volunteers have contributed
2038 catalogs of the library's messages in Spanish, German, and Korean.
2040 * For compatibility with XPG4, Ulrich Drepper has contributed the `gencat'
2041 program and the `catgets' function for reading the catalog files it
2042 creates. (The <libintl.h> interface is preferred; we include the
2043 <nl_types.h> interface using `catgets' only for source compatibility with
2044 programs already written to use it.)
2046 * New header file <values.h> gives SVID-compatible names for <limits.h>
2049 * Various new macros, declarations, and small header files for compatibility
2052 * New function `group_member' is a convenient way to check if a process has
2053 a given effective group ID.
2055 * When using GCC 2.7 and later, the socket functions are now declared in a
2056 special way so that passing an argument of type `struct sockaddr_in *',
2057 `struct sockaddr_ns *', or `struct sockaddr_un *' instead of the generic
2058 `struct sockaddr *' type, does not generate a type-clash warning.
2060 * New function `error' declared in header file <error.h> is a convenient
2061 function for printing error messages and optionally exiting; this is the
2062 canonical function used in GNU programs. The new functions `err', `warn',
2063 and friends in header file <err.h> are the canonical 4.4 BSD interface for
2064 doing the same thing.
2066 * The <glob.h> interface has several new flags from 4.4 BSD that extend the
2067 POSIX.2 `glob' function to do ~ and {...} expansion.
2069 * New function `unsetenv' complements `setenv' for compatibility with 4.4 BSD.
2070 `clearenv' which is used in POSIX.9 is also available.
2072 * New function `getsid' returns session ID number on systems that support it.
2074 * We have incorporated the 4.4 BSD `db' library (version 1.85). New header
2075 files <db.h> and <mpool.h> provide a rich set of functions for several
2076 types of simple databases stored in memory and in files, and <ndbm.h> is
2077 an old `ndbm'-compatible interface using the `db' functions. Link with
2078 `-ldb' to get these functions.
2080 * New macro `strdupa' copies a string like `strdup', but uses local stack
2081 space from `alloca' instead of dynamic heap space from `malloc'.
2083 * New function `strnlen' is like `strlen' but searches only a given maximum
2084 number of characters for the null terminator. `stpncpy', `strndup' and
2085 `strndupa' are similar variants for the `stpcpy', `strdup' and `strdupa'
2088 * New function `statfs' in header <sys/statfs.h>.
2090 * The new <argz.h> and <envz.h> interfaces contributed by Miles Bader
2091 provide convenient functions for operating on blocks of null-terminated
2094 * A new suite of functions in <utmp.h> handle all the details of reading
2095 and writing the utmp file.
2097 * An implementation of the NIS/YP(tm) based NSS service was contributed by
2100 * Paul Eggert and Ulrich Drepper modified the `strftime' function to be
2101 completely POSIX compliant and also implemented the extended functionality
2102 to handle alternate digit representation and alternate era date formats.
2104 * Ulrich Drepper provided an implementation of the `strptime' function
2105 defined in XPG4.2 which transforms a string into a `struct tm' value.
2107 * Paul Eggert provided the tzselect shell script as part of the timezone
2108 code. The shell script makes it easy to select the correct timezone
2111 * The implementation of the malloc family of functions is completely replaced
2112 by a new implementation by Doug Lea with many improvements by Wolfram Gloger.
2113 The implementation uses the mmap function (if available) and it is
2114 optimized for the use in multi threaded programs.
2116 * Ulrich Drepper contributed a MD5 "encryption" for the crypt family of
2117 functions. This new functionality is usable by specifying a special
2118 salt string and it is compatible with implementation on *BSD systems.
2120 * Lots of functions from the XPG4.2 standard were added by Ulrich Drepper:
2121 `getsubopt' to handle second level command line options, `bsd_signal'
2122 to access BSD style `signal' functionality, the obsolete `regexp' style
2125 * the `lchown' function is available on system which support this
2128 * The implementation of the shadow password handling function was contributed
2131 * David Mosberger-Tang changed the SunRPC implementation to be 64bit safe.
2133 * POSIX.1g support was added. The <sys/select.h> header is available,
2134 `isfdtype' and `pselect' are implemented. Craig Metz contributed an
2135 implementation of `getaddrinfo'.
2139 * For cross-compilation you should now set `BUILD_CC' instead of `HOST_CC'.
2141 * New header file <fstab.h> and new functions `getfsspec', `getfsent' and
2142 friends, for parsing /etc/fstab. This code comes from 4.4 BSD.
2144 * The new function `daemon' from 4.4 BSD is useful for server programs that
2145 want to put themselves in the background.
2147 * Joel Sherrill has contributed support for several standalone boards that
2148 run without an operating system.
2150 * `printf', `scanf' and friends now accept a `q' type modifier for long
2151 long int as well as `ll'. Formats using these might be `%qu' or `%lld'.
2153 * All of the code taken from BSD (notably most of the math and networking
2154 routines) has been updated from the BSD 4.4-Lite release.
2156 * The resolver code has been updated from the BIND-4.9.3-BETA9 release.
2158 * The new functions `getdomainname' and `setdomainname' fetch or change the
2159 YP/NIS domain name. These are system calls which exist on systems which
2162 * The time zone data files have been updated for the latest international
2165 * The SunRPC programs `portmap' and `rpcinfo' are now installed in
2166 $(sbindir) (usually /usr/local/sbin) instead of $(bindir).
2170 * The C library now includes support for Sun RPC, from Sun's free
2171 RPCSRC-4.0 distribution. The `portmap', `rpcinfo', and `rpcgen' programs
2172 are included. (There is still no support for YP.)
2174 * Tom Quinn has contributed a port of the C library to SGI machines running
2175 Irix 4 (mips-sgi-irix4).
2177 * The new `lockf' function is a simplified interface to the locking
2178 facilities of `fcntl', included for compatibility.
2180 * New time functions `timegm', `timelocal', and `dysize' for compatibility.
2182 * New header file <sys/timeb.h> and new function `ftime' for compatibility.
2184 * New header files <poll.h> and <sys/poll.h> and new function `poll' for
2187 * The error message printed by `assert' for a failed assertion now includes
2188 the name of the program (if using GNU ld) and the name of the calling
2189 function (with versions of GCC that support this).
2191 * The `psignal' function is now declared in <signal.h>, not <stdio.h>.
2193 * The library now includes the <sys/mman.h> header file and memory
2194 management functions `mmap', `munmap', `mprotect', `msync', and
2195 `madvise', on systems that support those facilities.
2197 * The interface for `mcheck' has changed slightly: the function called to
2198 abort the program when an allocation inconsistency is detected now takes
2199 an argument that indicates the type of failure. The new function
2200 `mprobe' lets you request a consistency check for a particular block at
2201 any time (checks are normally done only when you call `free' or `realloc'
2204 * It is now possible to easily cross-compile the C library, building on one
2205 system a library to run on another machine and/or operating system. All
2206 you need to do is set the variable `HOST_CC' in `configparms' to the
2207 native compiler for programs to run on the machine you are building on (a
2208 few generator programs are used on Unix systems); set `CC' to the
2211 * The new function `fexecve' (only implemented on the GNU system) executes
2212 a program file given a file descriptor already open on the file.
2216 * Brendan Kehoe has contributed most of a port to the DEC Alpha
2217 running OSF/1 (alpha-dec-osf1). He says it is 75% complete.
2219 * You can set the variable `libprefix' in `configparms' to specify a prefix
2220 to be prepended to installed library files; this makes it easy to install
2221 the GNU C library to be linked as `-lgnuc' or whatever.
2223 * The new `stpncpy' is a cross between `stpcpy' and `strncpy': It
2224 copies a limited number of characters from a string, and returns the
2225 address of the last character written.
2227 * You no longer need to check for whether the installed `stddef.h' is
2228 compatible with the GNU C library. configure now checks for you.
2230 * You can now define a per-stream `fileno' function to convert the
2231 stream's cookie into an integral file descriptor.
2233 * ``malloc (0)'' no longer returns a null pointer. Instead, it
2234 allocates zero bytes of storage, and returns a unique pointer which
2235 you can pass to `realloc' or `free'. The behavior is undefined if
2236 you dereference this pointer.
2238 * The C library now runs on Sony NEWS m68k machines running either
2239 NewsOS 3 or NewsOS 4.
2241 * The new `syscall' function is a system-dependent primitive function
2242 for invoking system calls. It has the canonical behavior on Unix
2243 systems, including unreliable return values for some calls (such as
2244 `pipe', `fork' and `getppid').
2246 * The error code `EWOULDBLOCK' is now obsolete; it is always defined
2247 to `EAGAIN', which is the preferred name. On systems whose kernels
2248 use two distinct codes, the C library now translates EWOULDBLOCK to
2249 EAGAIN in every system call function.
2253 * The GNU C Library Reference Manual is now distributed with the library.
2254 `make dvi' will produce a DVI file of the printed manual.
2255 `make info' will produce Info files that you can read on line using C-h i
2256 in Emacs or the `info' program.
2257 Please send comments on the manual to bug-glibc-manual@gnu.org.
2259 * The library now supports SVR4 on i386s (i386-unknown-sysv4).
2261 * Brendan Kehoe has contributed a port to Sun SPARCs running Solaris 2.
2263 * Jason Merrill has contributed a port to the Sequent Symmetry running
2264 Dynix version 3 (i386-sequent-dynix).
2266 * The library has been ported to i386s running SCO 3.2.4 (also known as SCO
2267 ODT 2.0; i386-unknown-sco3.2.4) or SCO 3.2 (i386-unknown-sco3.2).
2269 * New function `memory_warnings' lets you arrange to get warnings when
2270 malloc is running out of memory to allocate, like Emacs gives you.
2272 * The C library now contains the relocating allocator used in Emacs 19 for
2273 its editing buffers. This allocator (ralloc) minimizes allocation
2274 overhead and fragmentation by moving allocated regions around whenever it
2275 needs to. You always refer to a ralloc'd region with a "handle" (a
2276 pointer to a pointer--an object of type `void **').
2278 * There is a new `printf' format: `%m' gives you the string corresponding
2279 to the error code in `errno'.
2281 * In `scanf' formats, you can now use `%as' or `%a[' to do the normal `%s'
2282 or `%[' conversion, but instead of filling in a fixed-sized buffer you
2283 pass, the `a' modifier says to fill in a `char **' you pass with a
2286 * The `fnmatch' function supports the new flag bits `FNM_LEADING_DIR' and
2287 `FNM_CASEFOLD'. `FNM_LEADING_DIR' lets a pattern like `foo*' match a
2288 name like `foo/bar'. `FNM_CASEFOLD' says to ignore case in matching.
2290 * `mkstemp' is a traditional Unix function to atomically create and open a
2291 uniquely-named temporary file.
2295 * The standard location for the file that says what the local timezone is
2296 has changed again. It is now `/usr/local/etc/localtime' (or more
2297 precisely, `${prefix}/etc/localtime') rather than `/etc/localtime'.
2299 * The distribution no longer contains any files with names longer than 14
2302 * `struct ttyent' has two new flag bits: TTY_TRUSTED and TTY_CONSOLE.
2303 These are set by the new `trusted' and `console' keywords in `/etc/ttys'.
2305 * New functions `ttyslot' and `syslog' from 4.4 BSD.
2309 * The configuration process has changed quite a bit. The `configure'
2310 script is now used just like the configuration scripts for other GNU
2311 packages. The `sysdeps' directory hierarchy is much rearranged.
2312 The file `INSTALL' explains the new scheme in detail.
2314 * The header files no longer need to be processed into ANSI C and
2315 traditional C versions. There is just one set of files to install, and
2316 it will work with ANSI or old C compilers (including `gcc -traditional').
2318 * Brendan Kehoe and Ian Lance Taylor have ported the library to the
2319 MIPS DECStation running Ultrix 4.
2321 * The Sun 4 startup code (crt0) can now properly load SunOS 4 shared libraries.
2322 Tom Quinn contributed the initial code. The GNU C library can NOT yet be
2323 made itself into a shared library.
2325 * Yet further improved support for the i386, running 4.3 BSD-like systems
2326 (such as Mach 3 with the Unix single-server), or System V.
2328 * New function `strncasecmp' to do case-insensitive string comparison
2329 with limited length.
2331 * New function `strsep' is a reentrant alternative to `strtok'.
2333 * New functions `scandir' and `alphasort' for searching directories.
2335 * New function `setenv' is a better interface to `putenv'.
2337 * Ian Lance Taylor has contributed an implementation of the SVID `ftw'
2338 function for traversing a directory tree.
2340 * The GNU obstack package is now also part of the C library.
2341 The new function `open_obstack_stream' creates a stdio stream that
2342 writes onto an obstack; `obstack_printf' and `obstack_vprintf' do
2343 formatted output directly to an obstack.
2345 * Miscellaneous new functions: reboot, nice, sigaltstack (4.4 BSD only),
2346 cfmakeraw, getusershell, getpass, swab, getttyent, seteuid, setegid.
2348 * `FNM_FILE_NAME' is another name for `FNM_PATHNAME', used with `fnmatch'.
2350 * The new functions `strfry' and `memfrob' do mysterious and wonderful
2351 things to your strings.
2353 * There are some new test programs: test-fseek, testmb, and testrand.
2355 * Some work has been done to begin porting the library to 4.4 BSD and Linux.
2356 These ports are not finished, but are a good starting place for really
2357 supporting those systems.
2359 * `/etc/localtime' is now the standard location for the file that says what
2360 the local timezone is, rather than `/usr/local/lib/zoneinfo/localtime'.
2361 This follows the general principle that `/etc' is the place for all local
2362 configuration files.
2364 * The C library header files now use `extern "C"' when used by the C++
2365 compiler, so the C library should now work with C++ code.
2367 * The header file <bstring.h> is gone. <string.h> now declares bcopy,
2368 bcmp, bzero, and ffs. (Update: nowadays these functions are declared
2371 * Mike Haertel (of GNU e?grep and malloc fame) has written a new sorting
2372 function which uses the `merge sort' algorithm, and is said to be
2373 significantly faster than the old GNU `qsort' function. Merge sort is
2374 now the standard `qsort' function. The new algorithm can require a lot
2375 of temporary storage; so, the old sorting function is called when the
2376 required storage is not available.
2378 * The C library now includes Michael Glad's Ultra Fast Crypt, which
2379 provides the Unix `crypt' function, plus some other entry points.
2381 * The code and header files taken from 4.4 BSD have been updated with the
2382 latest files released from Berkeley.
2384 ----------------------------------------------------------------------
2385 Copyright information:
2387 Copyright (C) 1992-2014 Free Software Foundation, Inc.
2389 Permission is granted to anyone to make or distribute verbatim copies
2390 of this document as received, in any medium, provided that the
2391 copyright notice and this permission notice are preserved,
2392 thus giving the recipient permission to redistribute in turn.
2394 Permission is granted to distribute modified versions
2395 of this document, or of portions of it,
2396 under the above conditions, provided also that they
2397 carry prominent notices stating who last changed them.
2400 version-control: never
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