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 * The am33 port, which had not worked for several years, has been removed
17 * The following bugs are resolved with this release:
19 156, 387, 431, 762, 832, 926, 2801, 4772, 6786, 6787, 6807, 6810, 6981,
20 7003, 9721, 9954, 10253, 10278, 11087, 11157, 11214, 12100, 12486, 12751,
21 12986, 13028, 13982, 13985, 14029, 14032, 14120, 14143, 14155, 14286,
22 14547, 14699, 14752, 14782, 14876, 14910, 15004, 15048, 15073, 15089,
23 15128, 15218, 15268, 15277, 15308, 15362, 15374, 15400, 15425, 15427,
24 15483, 15522, 15531, 15532, 15593, 15601, 15608, 15609, 15610, 15632,
25 15640, 15670, 15672, 15680, 15681, 15723, 15734, 15735, 15736, 15748,
26 15749, 15754, 15760, 15763, 15764, 15797, 15799, 15825, 15843, 15844,
27 15846, 15847, 15849, 15850, 15855, 15856, 15857, 15859, 15867, 15886,
28 15887, 15890, 15892, 15893, 15895, 15897, 15901, 15905, 15909, 15915,
29 15917, 15919, 15921, 15923, 15939, 15941, 15948, 15963, 15966, 15968,
30 15985, 15988, 15997, 16032, 16034, 16036, 16037, 16038, 16041, 16046,
31 16055, 16071, 16072, 16074, 16077, 16078, 16103, 16112, 16143, 16144,
32 16146, 16150, 16151, 16153, 16167, 16169, 16172, 16195, 16214, 16245,
33 16271, 16274, 16283, 16289, 16293, 16314, 16316, 16330, 16337, 16338,
34 16356, 16365, 16366, 16369, 16372, 16375, 16379, 16384, 16385, 16386,
35 16387, 16390, 16394, 16398, 16400, 16407, 16408, 16414, 16430, 16431,
36 16453, 16474, 16506, 16510, 16529
38 * Slovenian translations for glibc messages have been contributed by the
39 Translation Project's Slovenian team of translators.
41 * The public headers no longer use __unused nor __block. This change is to
42 support compiling programs that are derived from BSD sources and use
43 __unused internally, and to support compiling with Clang's -fblock
44 extension which uses __block.
46 * CVE-2012-4412 The strcoll implementation caches indices and rules for
47 large collation sequences to optimize multiple passes. This cache
48 computation may overflow for large collation sequences and may cause a
49 stack or buffer overflow. This is now fixed to use a slower algorithm
50 which does not use a cache if there is an integer overflow.
52 * CVE-2012-4424 The strcoll implementation uses malloc to cache indices and
53 rules for large collation sequences to optimize multiple passes and falls
54 back to alloca if malloc fails, resulting in a possible stack overflow.
55 The implementation now falls back to an uncached collation sequence lookup
58 * CVE-2013-4788 The pointer guard used for pointer mangling was not
59 initialized for static applications resulting in the security feature
60 being disabled. The pointer guard is now correctly initialized to a
61 random value for static applications. Existing static applications need
62 to be recompiled to take advantage of the fix (bug 15754).
64 * CVE-2013-4237 The readdir_r function could write more than NAME_MAX bytes
65 to the d_name member of struct dirent, or omit the terminating NUL
66 character. (Bugzilla #14699).
68 * CVE-2013-4332 The pvalloc, valloc, memalign, posix_memalign and
69 aligned_alloc functions could allocate too few bytes or corrupt the
70 heap when passed very large allocation size values (Bugzilla #15855,
73 * CVE-2013-4458 Stack overflow in getaddrinfo with large number of results
74 for AF_INET6 has been fixed (Bugzilla #16072).
76 * New locales: ak_GH, anp_IN, ar_SS, cmn_TW, hak_TW, lzh_TW, nan_TW, pap_AW,
77 pap_CW, quz_PE, the_NP.
79 * Substantially revised locales: gd_GB, ht_HT
81 * The LC_ADDRESS field was updated to support country_car for almost all
84 * ISO 1427 definitions were updated.
86 * ISO 3166 definitions were updated.
88 * The localedef utility now supports --big-endian and --little-endian
89 command-line options to generate locales for a different system from that
90 for which the C library was built.
92 * Binary locale files now only depend on the endianness of the system for
93 which they are generated and not on other properties of that system. As a
94 consequence, binary files generated with new localedef may be incompatible
95 with old versions of the GNU C Library, and binary files generated with
96 old localedef may be incompatible with this version of the GNU C Library,
97 in the following circumstances:
99 + Locale files may be incompatible on m68k systems.
101 + Locale archive files (but not separate files for individual locales) may
102 be incompatible on systems where plain "char" is signed.
104 * The configure option --disable-versioning has been removed. Builds with
105 --disable-versioning had not worked for several years.
107 * ISO 639 definitions were updated for Chiga (cgg) and Chinese (gan, hak, czh,
108 cjy, lzh, cmn, mnp, cdo, czo, cpx, wuu, hsn, yue).
110 * SystemTap probes for malloc have been introduced.
112 * SystemTap probes for slow multiple precision fallback paths of
113 transcendental functions have been introduced.
115 * Support for powerpc64le has been added.
117 * The soft-float powerpc port now supports e500 processors.
119 * Support for STT_GNU_IFUNC symbols added for ppc32/power4+ and ppc64.
121 * A new feature test macro _DEFAULT_SOURCE is available to enable the same
122 set of header declarations that are enabled by default, even when other
123 feature test macros or compiler options such as -std=c99 would otherwise
124 disable some of those declarations.
126 * The _BSD_SOURCE feature test macro no longer enables BSD interfaces that
127 conflict with POSIX. The libbsd-compat library (which was a dummy library
128 that did nothing) has also been removed.
130 * Preliminary documentation about Multi-Thread, Async-Signal and
131 Async-Cancel Safety has been added.
135 * The following bugs are resolved with this release:
137 2546, 2560, 5159, 6809, 7006, 10060, 10062, 10283, 10357, 10686, 11120,
138 11561, 12310, 12387, 12492, 12515, 12723, 13550, 13889, 13951, 13988,
139 14142, 14176, 14200, 14256, 14280, 14293, 14317, 14327, 14478, 14496,
140 14582, 14686, 14812, 14888, 14894, 14907, 14908, 14909, 14920, 14952,
141 14964, 14981, 14982, 14985, 14991, 14994, 14996, 15000, 15003, 15006,
142 15007, 15014, 15020, 15022, 15023, 15036, 15054, 15055, 15062, 15078,
143 15084, 15085, 15086, 15100, 15160, 15214, 15221, 15232, 15234, 15283,
144 15285, 15287, 15304, 15305, 15307, 15309, 15327, 15330, 15335, 15336,
145 15337, 15339, 15342, 15346, 15359, 15361, 15366, 15380, 15381, 15394,
146 15395, 15405, 15406, 15409, 15416, 15418, 15419, 15423, 15424, 15426,
147 15429, 15431, 15432, 15441, 15442, 15448, 15465, 15480, 15485, 15488,
148 15490, 15492, 15493, 15497, 15506, 15529, 15536, 15553, 15577, 15583,
149 15618, 15627, 15631, 15654, 15655, 15666, 15667, 15674, 15711, 15755,
152 * CVE-2013-2207 Incorrectly granting access to another user's pseudo-terminal
153 has been fixed by disabling the use of pt_chown (Bugzilla #15755).
154 Distributions can re-enable building and using pt_chown via the new configure
155 option `--enable-pt_chown'. Enabling the use of pt_chown carries with it
156 considerable security risks and should only be used if the distribution
157 understands and accepts the risks.
159 * CVE-2013-0242 Buffer overrun in regexp matcher has been fixed (Bugzilla
162 * CVE-2013-1914 Stack overflow in getaddrinfo with many results has been
163 fixed (Bugzilla #15330).
165 * Add support for calling C++11 thread_local object destructors on thread
166 and program exit. This needs compiler support for offloading C++11
167 destructor calls to glibc.
169 * Improved worst case performance of libm functions with double inputs and
172 * Support for priority inherited mutexes in pthread condition variables on
173 non-x86 architectures.
175 * Port to Xilinx MicroBlaze contributed by David Holsgrove.
177 * Optimized string functions for AArch64. Implemented by Marcus Shawcroft.
179 * Optimized string functions for ARM. Implemented by Will Newton and
182 * Optimized libm functions for SPARC. Implemented by David S. Miller.
184 * Support for building more of ARM glibc as Thumb-2 code. Implemented by
187 * Support for building most of MIPS glibc as MIPS16 code. Implemented by
188 Chung-Lin Tang, Maciej W. Rozycki and Maxim Kuvyrkov.
190 * Added a benchmark framework to track performance of functions in glibc.
192 * New <math.h> macro named issignaling to check for a signaling NaN (sNaN).
193 It is based on draft TS 18661 and currently enabled as a GNU extension.
195 * On Linux, the clock function now uses the clock_gettime system call
196 for improved precision, rather than old times system call.
198 * Added support for version-3 tz format files. This is needed when using
199 the tz database release 2013e or later, and affects a few unusual cases --
200 currently only TZ='America/Godthab' for time stamps after 2037.
202 * Added new API functions pthread_getattr_default_np and
203 pthread_setattr_default_np to get and set the default pthread
204 attributes of a process.
206 * Added support for TSX lock elision for pthread mutexes on i386 and x86-64.
207 This may improve lock scaling of existing programs on TSX capable systems.
208 When the --enable-lock-elision=yes parameter is specified at configure
209 time lock elision will be enabled by default for all PTHREAD_MUTEX_DEFAULT
212 * Support added for AT_HWCAP2 (to coincide with Linux kernel 3.10
213 availability). Implemented by Ryan S. Arnold.
215 * Support added for POWER8 platform. Implemented by Ryan S. Arnold.
219 * The following bugs are resolved with this release:
221 1349, 3439, 3479, 3665, 5044, 5246, 5298, 5400, 6530, 6677, 6778, 6808,
222 9685, 9914, 10014, 10038, 10114, 10191, 10631, 10873, 11438, 11607, 11638,
223 11741, 12140, 13013, 13412, 13542, 13601, 13603, 13604, 13629, 13679,
224 13696, 13698, 13717, 13741, 13759, 13761, 13763, 13881, 13939, 13950,
225 13952, 13966, 14042, 14047, 14090, 14150, 14151, 14152, 14154, 14157,
226 14166, 14173, 14195, 14197, 14237, 14246, 14251, 14252, 14283, 14298,
227 14303, 14307, 14328, 14331, 14336, 14337, 14347, 14349, 14368, 14376,
228 14417, 14447, 14459, 14476, 14477, 14501, 14505, 14510, 14516, 14518,
229 14519, 14530, 14532, 14538, 14543, 14544, 14545, 14557, 14562, 14568,
230 14576, 14579, 14583, 14587, 14595, 14602, 14610, 14621, 14638, 14645,
231 14648, 14652, 14660, 14661, 14669, 14672, 14683, 14694, 14716, 14719,
232 14743, 14767, 14783, 14784, 14785, 14793, 14796, 14797, 14801, 14803,
233 14805, 14807, 14811, 14815, 14821, 14822, 14824, 14828, 14831, 14833,
234 14835, 14838, 14856, 14863, 14865, 14866, 14868, 14869, 14871, 14872,
235 14879, 14889, 14893, 14898, 14914.
237 * Optimization of memcpy for MIPS.
239 * CVE-2011-4609 svc_run() produces high cpu usage when accept fails with
240 EMFILE has been fixed (Bugzilla #14889).
242 * The add-on ports collection is now distributed in the "ports" subdirectory
243 of the main GNU C Library distribution, rather than separately.
245 * Port to ARM AArch64 contributed by Linaro.
247 * Support for STT_GNU_IFUNC symbols added for s390 and s390x.
248 Optimized versions of memcpy, memset, and memcmp added for System z10 and
250 Implemented by Andreas Krebbel.
252 * The new function secure_getenv allows secure access to the environment,
253 returning NULL if running in a SUID/SGID process. This function replaces
254 the internal function __secure_getenv.
256 * SystemTap static probes have been added into the dynamic linker.
257 Implemented by Gary Benson.
259 * Optimizations of string functions strstr, strcasestr and memmem.
260 Implemented by Maxim Kuvyrkov.
262 * The minimum Linux kernel version that this version of the GNU C Library
263 can be used with is 2.6.16.
265 * Optimizations of string functions memchr, wcschr, wcscpy, and wcsrchr for
266 powerpc POWER7. Implemented by Will Schmidt.
268 * New configure option --disable-nscd builds the C library such that it
269 never attempts to contact the Name Service Caching Daemon (nscd).
270 New configure option --disable-build-nscd avoids building nscd itself;
271 this is the default if --disable-nscd is used.
273 * Improved support for cross-compilation, including cross-testing and
274 bootstrap builds without a previously built glibc.
276 * Several testsuite tests are now able to test multiple IFUNC variants of an
277 interface, rather than just testing the one that would be chooen by
280 * New configure options --with-bugurl and --with-pkgversion, for
281 distributors to use to embed their bug-reporting and package version
282 information in --help and --version output.
284 * The ttyname and ttyname_r functions on Linux now fall back to searching for
285 the tty file descriptor in /dev/pts or /dev if /proc is not available. This
286 allows creation of chroots without the procfs mounted on /proc.
288 * The `crypt' function now fails if passed salt bytes that violate the
289 specification for those values. On Linux, the `crypt' function will
290 consult /proc/sys/crypto/fips_enabled to determine if "FIPS mode" is
291 enabled, and fail on encrypted strings using the MD5 or DES algorithm
292 when the mode is enabled.
294 * The `clock_*' suite of functions (declared in <time.h>) is now available
295 directly in the main C library. Previously it was necessary to link with
296 -lrt to use these functions. This change has the effect that a
297 single-threaded program that uses a function such as `clock_gettime' (and
298 is not linked with -lrt) will no longer implicitly load the pthreads
299 library at runtime and so will not suffer the overheads associated with
300 multi-thread support in other code such as the C++ runtime library.
302 * New locales: ayc_PE, doi_IN, ia_FR, mni_IN, nhn_MX, niu_NU, niu_NZ,
307 * The following bugs are resolved with this release:
309 174, 208, 350, 369, 411, 706, 766, 887, 2074, 2541, 2547, 2548, 2550,
310 2551, 2552, 2553, 2554, 2562, 2563, 2565, 2566, 2570, 2576, 2636, 2678,
311 3335, 3440, 3748, 3768, 3866, 3868, 3906, 3976, 3992, 4026, 4108, 4596,
312 4822, 5077, 5461, 5805, 5993, 6471, 6486, 6578, 6649, 6730, 6770, 6794,
313 6884, 6890, 6894, 6895, 6907, 6911, 6959, 7064, 9739, 9902, 10110, 10135,
314 10140, 10153, 10210, 10254, 10346, 10375, 10545, 10716, 10846, 11174,
315 11261, 11322, 11365, 11451, 11494, 11521, 11677, 11837, 11959, 12047,
316 12097, 12193, 12194, 12297, 12298, 12301, 12340, 12354, 12416, 12495,
317 13058, 13223, 13361, 13525, 13526, 13527, 13528, 13529, 13530, 13531,
318 13532, 13533, 13547, 13551, 13552, 13553, 13555, 13556, 13559, 13563,
319 13566, 13576, 13579, 13583, 13592, 13594, 13613, 13618, 13637, 13656,
320 13658, 13673, 13691, 13695, 13704, 13705, 13706, 13718, 13726, 13738,
321 13739, 13743, 13750, 13758, 13760, 13761, 13775, 13786, 13787, 13792,
322 13806, 13824, 13840, 13841, 13844, 13846, 13848, 13851, 13852, 13854,
323 13871, 13872, 13873, 13879, 13882, 13883, 13884, 13885, 13886, 13892,
324 13895, 13908, 13910, 13911, 13912, 13913, 13914, 13915, 13916, 13917,
325 13918, 13919, 13920, 13921, 13922, 13923, 13924, 13926, 13927, 13928,
326 13938, 13941, 13942, 13954, 13955, 13956, 13963, 13967, 13968, 13970,
327 13973, 13979, 13983, 13986, 13996, 14012, 14027, 14033, 14034, 14036,
328 14040, 14043, 14044, 14048, 14049, 14050, 14053, 14055, 14059, 14064,
329 14075, 14080, 14083, 14103, 14104, 14109, 14112, 14117, 14122, 14123,
330 14134, 14153, 14183, 14188, 14199, 14210, 14218, 14229, 14241, 14273,
333 * Support for the x32 ABI on x86-64 added. The x32 target is selected by
334 configuring glibc with:
335 BUILD_CC='gcc' CC='gcc -mx32' CXX='g++ -mx32'
336 Visit <http://sites.google.com/site/x32abi/> for more x32 ABI info.
337 Implemented by H.J. Lu.
341 + define static_assert
343 + do not declare gets
345 + declare at_quick_exit and quick_exit also for ISO C11
347 + aligned_alloc. NB: The code is deliberately allows the size parameter
348 to not be a multiple of the alignment. This is a moronic requirement
349 in the standard but it is only a requirement on the caller, not the
354 + uchar.h support added
356 + CMPLX, CMPLXF, CMPLXL added
358 Implemented by Ulrich Drepper.
360 * Support for the IA-64 has been moved to ports.
362 * Remove support for anything but ELF binary format
364 * Checking versions of poll, ppoll added.
365 Implemented by Ulrich Drepper.
367 * More generic and 64-bit performance optimizations to math functions.
368 Implemented by Ulrich Drepper.
370 * New configure option --enable-obsolete-rpc makes the deprecated RPC
371 headers and functions available at compile time as they were before
372 version 2.14. This option will be removed at some time in the future
373 after the TI-RPC library becomes fully sufficient for the needs of
374 existing applications.
376 * Compatibility code for Linux kernel versions before 2.4 has been removed.
377 Note that glibc is not expected to work with any Linux kernel version
380 * New header <sys/auxv.h> and function getauxval allowing easy access to
381 the AT_* key-value pairs passed from the Linux kernel. The header also
382 defines the HWCAP_* bits associated with the AT_HWCAP key.
384 * New locales: mag_IN
386 * New configure option --enable-systemtap builds SystemTap static probes
387 into libc for setjmp and longjmp and into libpthread for various operations.
388 So far the setjmp/longjmp probes and some of the libpthread probes are
389 provided only for i*86 and x86_64.
390 Implemented by Roland McGrath and Rayson Ho.
392 * Optimized expf for x86-32 and x86-64. Implemented by Liubov Dmitrieva.
394 * More optimized functions for PowerPC. Implemented by Adhemerval Zanella
397 * More optimized functions for SPARC. Implemented by David S. Miller.
399 * Improved support for cross-compilation, especially bootstrap builds
400 without a previously built glibc.
402 * Ports for the TILE-Gx and TILEPro families of processors. Contributed by
403 Chris Metcalf from Tilera.
405 * Support for the old ARM ABI has been removed from ports. Only the EABI is
406 now supported for ARM processors.
408 * The hard-float variant of the ARM EABI now uses /lib/ld-linux-armhf.so.3
409 as the name of the dynamic linker, to distinguish it from the
410 /lib/ld-linux.so.3 dynamic linker used for the base EABI.
412 * Support for CRIS has been removed from ports.
414 * A new class of installed header has been documented for low-level
415 platform-specific functionality. PowerPC added the first instance with a
416 function to provide time base register access. Contributed by Tulio
417 Magno Quites Machado Filho.
419 * ix86 configurations now install header files that are consistent with
420 what x86-64 configurations install. These same header files can be used
421 for -m32, -m64, or -mx32 builds.
422 Contributed by H.J. Lu.
424 * Math library bug fixes. A thorough audit of all open math library bugs was
425 conducted by Joseph Myers. Significant progress was made on many math
426 library bugs resulting in more accurate exceptions and function results.
427 Many thanks to all those that contributed including Andreas Jaeger for his
428 patch review and work on the x87 trigonometric instruction issues.
430 * Timezone data is no longer installed. Timezone-related binaries and scripts
431 will continue to be installed. Users should obtain their timezone data from
432 their distribution provider or from the tzdata package at
433 <ftp://munnari.oz.au/pub/>.
437 * The following bugs are resolved with this release:
439 6779, 6783, 9696, 10103, 10709, 11589, 11929, 12403, 12786, 12840, 12847,
440 12868, 12852, 12874, 12885, 12892, 12906, 12907, 12922, 12935, 12962,
441 13007, 13021, 13061, 13062, 13067, 13068, 13085, 13088, 13090, 13092,
442 13096, 13114, 13118, 13123, 13134, 13138, 13147, 13150, 13166, 13179,
443 13185, 13189, 13192, 13268, 13276, 13282, 13291, 13305, 13328, 13335,
444 13337, 13344, 13358, 13367, 13413, 13416, 13423, 13439, 13446, 13472,
445 13484, 13506, 13515, 13523, 13524, 13538, 13540
447 * New program pldd to list loaded object of a process
448 Implemented by Ulrich Drepper.
450 * Add nss_db support back to glibc. No more dependency on Berkeley db
451 and support for initgroups lookups.
452 Implemented by Ulrich Drepper.
454 * Optimized strcpy, strncpy, stpcpy, stpncpy for SSE2 and SSSE3 on x86-32.
455 Contributed by HJ Lu.
457 * Improved strcpy, strncpy, stpcpy, stpncpy for SSE2 and SSSE3 on x86-64.
458 Contributed by HJ Lu.
460 * Optimized strcat, strncat on x86-64 and optimized wcscmp, wcslen, strnlen
461 on x86-32 and x86-64.
462 Contributed by Liubov Dmitrieva.
464 * Optimized strchr and strrchr for SSE on x86-32.
465 Contributed by Liubov Dmitrieva.
467 * Optimized memchr, memrchr, rawmemchr, memcmp, wmemcmp, wcschr, wcscpy
468 for x86-64 and x86-32.
469 Contributed by Liubov Dmitrieva.
471 * New interfaces: scandirat, scandirat64
472 Implemented by Ulrich Drepper.
474 * Checking versions of FD_SET, FD_CLR, and FD_ISSET added.
475 Implemented by Ulrich Drepper.
477 * nscd now also caches the netgroup database.
478 Implemented by Ulrich Drepper.
480 * Integrate libm with gcc's -ffinite-math-only option.
481 Implemented by Ulrich Drepper.
483 * Lots of generic, 64-bit, and x86-64-specific performance optimizations
484 to math functions. Implemented by Ulrich Drepper.
486 * Optimized strcasecmp and strncasecmp for AVX on x86-64.
487 Implemented by Ulrich Drepper.
489 * New Linux interfaces: process_vm_readv, process_vm_writev
491 * Optimized strcasecmp and strncasecmp for SSSE3 and SSE4.2 on x86-32.
492 Implemented by Ulrich Drepper.
494 * Optimized nearbyint and strcasecmp for PPC.
495 Implemented by Adhemerval Zanella.
497 * New locales: bho_IN, unm_US, es_CU, ta_LK
501 * The following bugs are resolved with this release:
503 386, 6420, 7101, 9730, 9732, 9809, 10138, 10149, 10157, 11099, 11257,
504 11258, 11487, 11532, 11558, 11578, 11634, 11653, 11668, 11697, 11724,
505 11781, 11799, 11820, 11837, 11857, 11869, 11892, 11895, 11901, 11945,
506 11947, 11952, 11987, 12052, 12083, 12158, 12178, 12200, 12346, 12350,
507 12393, 12420, 12432, 12445, 12449, 12453, 12454, 12460, 12469, 12489,
508 12509, 12510, 12511, 12518, 12527, 12541, 12545, 12551, 12582, 12583,
509 12587, 12597, 12601, 12611, 12625, 12626, 12631, 12650, 12653, 12655,
510 12660, 12671, 12681, 12684, 12685, 12711, 12713, 12714, 12717, 12723,
511 12724, 12734, 12738, 12746, 12766, 12775, 12777, 12782, 12788, 12792,
512 12795, 12811, 12813, 12814, 12841
514 * The RPC implementation in libc is obsoleted. Old programs keep working
515 but new programs cannot be linked with the routines in libc anymore.
516 Programs in need of RPC functionality must be linked against TI-RPC.
517 The TI-RPC implementation is IPv6 enabled and there are other benefits.
519 Visible changes of this change include (obviously) the inability to link
520 programs using RPC functions without referencing the TI-RPC library and the
521 removal of the RPC headers from the glibc headers.
522 Implemented by Ulrich Drepper.
524 * New Linux interfaces: clock_adjtime, name_to_handle_at, open_by_handle_at,
525 syncfs, setns, sendmmsg
527 * New locales: os_RU, bem_ZA, en_ZA, ff_SN, sw_KE, sw_TZ, lb_LU, wae_CH,
528 yue_HK, lij_IT, mhr_RU
530 * New encodings: CP770, CP771, CP772, CP773, CP774
532 * New program sotruss to trace calls through PLTs
533 Implemented by Ulrich Drepper.
535 * The malloc hook implementation is marked deprecated and will be removed
536 from the default implementation in the next version. The design never
537 worked ever since the introduction of threads. Even programs which do
538 not create threads themselves can use multiple threads created internally.
542 * The following bugs are resolved with this release:
544 3268, 6812, 7066, 10085, 10484, 10563, 10851, 11149, 11155, 11577, 11611,
545 11640, 11655, 11701, 11840, 11856, 11883, 11903, 11904, 11968, 11979,
546 12005, 12037, 12067, 12077, 12078, 12092, 12093, 12107, 12108, 12113,
547 12140, 12159, 12167, 12191, 12194, 12201, 12204, 12205, 12207, 12348,
550 * New Linux interfaces: prlimit, prlimit64, fanotify_init, fanotify_mark
552 * POWER7 optimizations: memset, memcmp, strncmp
554 * New optimized string functions for x86-64: strnlen (SSE2),
555 strcasecmp (SSE2, SSSE3, SSE4.2), strncasecmp (SSE2, SSSE3, SSE4.2)
556 Implemented by Ulrich Drepper.
560 * The following bugs are resolved with this release:
562 3662, 4457, 5553, 10162, 10401, 10414, 10554, 10824, 10864, 10915,
563 10918, 10936, 10939, 10958, 10968, 10969, 10972, 10992, 11000, 11001,
564 11007, 11010, 11027, 11039, 11040, 11041, 11043, 11046, 11056, 11070,
565 11093, 11115, 11125, 11126, 11127, 11134, 11141, 11149, 11183, 11184,
566 11185, 11186, 11187, 11188, 11189, 11190, 11191, 11192, 11193, 11194,
567 11200, 11230, 11235, 11242, 11254, 11258, 11271, 11272, 11276, 11279,
568 11287, 11292, 11319, 11332, 11333, 11387, 11389, 11390, 11394, 11397,
569 11410, 11438, 11449, 11470, 11471, 11520, 11537, 11538, 11571
571 * New interfaces: pthread_getname_np, pthread_setname_np
573 * New Linux interface: recvmmsg
575 * STT_GNU_IFUNC implemented for Sparc by David Miller.
577 * The dynamic linker now recognizes supported ABI versions from the
578 EI_ABIVERSION field in the ELF header.
579 Implemented by Ulrich Drepper.
581 * New NIS mode selector ADJUNCT_AS_SHADOW. The passwd.adjunct.byname table
582 will not be used to fill in password fields in the passwd.byname replies.
583 Instead it is used to synthesize the shadow.byname table, should it be
584 missing. This is a useful mode in some installations involving Solaris.
585 Implemented by Ulrich Drepper.
587 * New locales: kok_IN, sq_MK, cv_RU
591 * The following bugs are resolved with this release:
593 3270, 7094, 9924, 9986, 10011, 10085, 10107, 10159, 10162, 10166, 10183,
594 10195, 10196, 10200, 10203, 10207, 10211, 10213, 10217, 10221, 10229,
595 10262, 10286, 10312, 10315, 10319, 10349, 10360, 10391, 10402, 10416,
596 10418, 10422, 10425, 10446, 10448, 10452, 10540, 10553, 10560, 10564,
597 10609, 10643, 10692, 10713, 10717, 10730, 10731, 10742, 10780, 10784,
598 10789, 10817, 10823, 10840, 10847
600 * New interfaces: execvpe, pthread_sigqueue, mkstemps, mkstemps64, mkostemps,
602 Implemented by Ulrich Drepper.
604 * Checking version of longjmp added that fails if an uninitialized stack
605 frame would be created. Implemented by Ulrich Drepper.
607 * STT_GNU_IFUNC is now supported in static executables.
608 Implemented by H.J. Lu.
610 * STT_GNU_IFUNC implemented for PPC by Alan Modra.
612 * New optimized string functions for x86-64: strstr, strcasestr, memcmp,
613 strcspn, strpbrk, strspn, strcpy, stpcpy, strncpy, strcmp (SSE2, SSE4.2),
614 strncmp (SSE2, SSE4.2), strchr (SSE4.2), strrchr (SSE4.2).
615 Contributed by H.J. Lu.
617 strlen, rawmemchr, strcmp (SSSE3), strncmp (SSSE3).
618 Implemented by Ulrich Drepper.
620 * New optimized string functions for x86: strlen, strcspn, strspn, strpbrk,
622 Contributed by H.J. Lu.
624 * Support for fma instruction in AVX on x86-64.
625 Implemented by H.J. Lu and Ulrich Drepper.
627 * AVX support in x86-64 auditing support in ld.so.
628 Implemented by H.J. Lu.
630 * STB_GNU_UNIQUE support added.
631 Implemented by Ulrich Drepper.
633 * Implement second fallback mode for optimized DNS lookup for even more
634 broken environments. If two requests from the same port are not
635 handled correctly close the socket and open a new one before sending
636 the second request. The 'single-request-reopen' option in /etc/resolv.conf
637 can be used to select this mode right away, instead of rediscovering the
638 necessity is every process again.
639 Implemented by Ulrich Drepper.
641 * New resolver flag RES_USE_DNSSEC to enable use of verified lookup.
642 Implemented by Adam Tkac.
644 * Optimized iconv conversions for S390x.
645 Implemented by Andreas Krebbel.
647 * Using condvars with PI mutexes is now more efficient due to kernel
648 support for requeueing to PI futexes. NPTL support added for x86-64.
649 Implemented by Ulrich Drepper.
651 * New locales: ps_AF, my_MM
655 * The following bugs are resolved with this release:
657 697, 5381, 5807, 6411, 6545, 7040, 7058, 7067, 7080, 7083, 7095, 7098,
658 9677, 9694, 9697, 9701, 9704, 9705, 9706, 9720, 9726, 9730, 9733, 9736,
659 9741, 9750, 9753, 9759, 9781, 9791, 9793, 9823, 9833, 9844, 9880, 9881,
660 9891, 9893, 9895, 9913, 9916, 9920, 9948, 9955, 9957, 9963, 9985, 10052,
661 10069, 10086, 10087, 10090, 10092, 10093, 10100, 10118, 10128
663 * New interfaces: preadv, preadv64, pwritev, pwritev64, malloc_info
664 Implemented by Ulrich Drepper.
666 * New Linux interfaces: accept4, fallocate, fallocate64.
667 Implemented by Ulrich Drepper.
669 * Correct declarations of string function when used in C++ code. This
670 could lead to compile errors for invalid C++ code.
672 * XPG7/POSIX 2008 compilation environment. Many GNU-specific functions are
675 * New POSIX 2008 interface: psiginfo
676 Implemented by Ulrich Drepper.
678 * New ISO C++1x interfaces: quick_exit, at_quick_exit
679 Implemented by Ulrich Drepper.
681 * Support for selecting between multiple function definitions at runtime
682 using STT_GNU_IFUNC symbols. Implemented by Ulrich Drepper.
684 * The libcrypt library can now use the hash function implementations in
685 NSS. Implemented by Ulrich Drepper.
687 * The malloc implementation can be compiled to be less memory efficient
688 but higher performing in multi-threaded programs.
689 Implemented by Ulrich Drepper.
691 * New locales: nan_TW@latin, ks_IN
693 * Faster strlen, strchr, strchrnul, strrchr, memchr, and rawmemchr for x86-64.
694 Implemented by Ulrich Drepper.
696 * Extended printf hook support. It is possible to use user-defined types
697 and extend existing format specifiers.
698 Implemented by Ulrich Drepper.
700 * Handling for group shadow files has been added.
701 Implemented by Ulrich Drepper.
703 * DNS IPv4-IPv6 parallel lookup now deals better with broken DNS
704 servers (the case, e.g., for some people using the built-in DNS
705 server in ADSL modems/routers). There is a once-per-process timeout
706 in case of a broken server. To avoid it, users can run nscd or put
707 'options single-request' in /etc/resolv.conf.
708 Implemented by Ulrich Drepper.
712 * The following bugs are resolved with this release:
714 3406, 5209, 5210, 5381, 5794, 5814, 5911, 6428, 6438, 6442, 6447, 6461,
715 6472, 6505, 6544, 6589, 6612, 6634, 6653, 6654, 6657, 6698, 6712, 6713,
716 6719, 6723, 6724, 6740, 6763, 6771, 6790, 6791, 6817, 6824, 6839, 6843,
717 6845, 6856, 6857, 6860, 6867, 6875, 6919, 6920, 6942, 6947, 6955, 6966,
718 6968, 6974, 6980, 6995, 7008, 7009, 7029
720 * Unified lookup for getaddrinfo: IPv4 and IPv6 addresses are now looked
721 up at the same time. Implemented by Ulrich Drepper.
723 * TLS descriptors for LD and GD on x86 and x86-64.
724 Implemented by Alexandre Oliva.
726 * getaddrinfo now handles DCCP and UDPlite.
727 Implemented by Ulrich Drepper.
729 * New fixed-size conversion macros: htobe16, htole16, be16toh, le16toh,
730 htobe32, htole32, be32toh, le32toh, htobe64, htole64, be64toh, le64toh.
731 Implemented by Ulrich Drepper.
733 * New implementation of memmem, strstr, and strcasestr which is O(n).
734 Implemented by Eric Blake.
736 * New Linux interfaces: inotify_init1, dup3, epoll_create1, pipe2
738 * Implement "e" option for popen to open file descriptor with the
739 close-on-exec flag set. Implemented by Ulrich Drepper.
741 * Implement "b" mode for fmemopen. In this mode writes writes don't
742 implicitly add a NUL byte and seeks from the end of the buffer really
743 use the buffer end, not the string length as the basis.
744 Implemented by Ulrich Drepper.
746 * Many functions, exported and internal, now atomically set the close-on-exec
747 flag when run on a sufficiently new kernel. Implemented by Ulrich Drepper.
749 * Sorting rules for some Indian languages (Kannada, Gurumukhi, Telugu,
751 Implemented by Pravin Satpute.
753 * New locales: sd_IN, sd_IN@devanagari, ks_IN@devanagari, ht_HT, en_AG, nl_AW.
757 * The following bugs are resolved with this release:
759 2549, 3112, 4314, 4407, 4997, 5012, 5040, 5112, 5204, 5208, 5209, 5220,
760 5222, 5224, 5225, 5237, 5238, 5240, 5245, 5277, 5346, 5375, 5378, 5382,
761 5424, 5427, 5428, 5435, 5436, 5439, 5441, 5442, 5443, 5451, 5452, 5454,
762 5455, 5463, 5464, 5465, 5475, 5477, 5478, 5520, 5541, 5545, 5553, 5600,
763 5602, 5607, 5614, 5627, 5628, 5736, 5737, 5741, 5753, 5760, 5762, 5768,
764 5774, 5777, 5778, 5779, 5786, 5790, 5818, 5854, 5857, 5903, 5939, 5979,
765 5983, 5995, 5998, 6004, 6007, 6020, 6021, 6024, 6040, 6042
767 * New locales: bo_CN, bo_IN, shs_CA.
769 * New encoding: HP-ROMAN9, HP-GREEK8, HP-THAI8, HP-TURKISH8.
771 * Sorting rules for some Indian languages (Devanagari and Gujarati).
772 Implemented by Pravin Satpute.
774 * IPV6 addresses in /etc/resolv.conf can now have a scope ID
776 * nscd caches now all timeouts for DNS entries
777 Implemented by Ulrich Drepper.
779 * nscd is more efficient and wakes up less often.
780 Implemented by Ulrich Drepper.
782 * More checking functions: asprintf, dprintf, obstack_printf, vasprintf,
783 vdprintf, and obstack_vprintf.
784 Implemented by Jakub Jelinek.
786 * Faster memset for x86-64.
787 Implemented by Harsha Jagasia and H.J. Lu.
789 * Faster memcpy on x86.
790 Implemented by Ulrich Drepper.
792 * ARG_MAX is not anymore constant on Linux. Use sysconf(_SC_ARG_MAX).
793 Implemented by Ulrich Drepper.
795 * Faster sqrt and sqrtf implemention for some PPC variants.
796 Implemented by Steven Munroe.
800 * The following bugs are resolved with this release:
802 4125, 4126, 4178, 4359, 4407, 4512, 4514, 4525, 4554, 4556, 4557, 4566,
803 4582, 4586, 4588, 4599, 4610, 4647, 4702, 4705, 4726, 4745, 4772, 4773,
804 4775, 4776, 4792, 4813, 4814, 4816, 4833, 4858, 4860, 4896, 4905, 4925,
805 4936, 4937, 4938, 4941, 4946, 4963, 4972, 5010, 5028, 5043, 5058, 5063,
806 5071, 5103, 5104, 5112, 5113, 5184, 5186
808 * More checking functions: fread, fread_unlocked, open*, mq_open.
809 Implemented by Jakub Jelinek and Ulrich Drepper.
811 * Extend fortification to C++. Implemented by Jakub Jelinek.
813 * Implement 'm' modifier for scanf. Add stricter C99/SUS compliance
814 by not recognizing 'a' as a modifier when those specs are requested.
815 Implemented by Jakub Jelinek.
817 * PPC optimizations to math and string functions.
818 Implemented by Steven Munroe.
820 * New interfaces: mkostemp, mkostemp64. Like mkstemp* but allow additional
821 options to be passed. Implemented by Ulrich Drepper.
823 * More CPU set manipulation functions. Implemented by Ulrich Drepper.
825 * New Linux interfaces: signalfd, eventfd, eventfd_read, and eventfd_write.
826 Implemented by Ulrich Drepper.
828 * Handle private futexes in the NPTL implementation.
829 Implemented by Jakub Jelinek and Ulrich Drepper.
831 * Add support for O_CLOEXEC. Implement in Hurd. Use throughout libc.
832 Implemented by Roland McGrath and Ulrich Drepper.
834 * Linux/x86-64 vDSO support. Implemented by Ulrich Drepper.
836 * SHA-256 and SHA-512 based password encryption.
837 Implemented by Ulrich Drepper.
839 * New locales: ber_DZ, ber_MA, en_NG, fil_PH, fur_IT, fy_DE, ha_NG, ig_NG,
840 ik_CA, iu_CA, li_BE, li_NL, nds_DE, nds_NL, pap_AN, sc_IT, tk_TM, ug_CN,
843 + New iconv modules: MAC-CENTRALEUROPE, ISO-8859-9E, KOI8-RU.
844 Implemented by Ulrich Drepper.
848 * The following bugs are resolved with this release:
850 3156, 3213, 3285, 3291, 3306, 3313, 3320, 3322, 3325, 3326, 3334, 3348,
851 3352, 3363, 3369, 3426, 3427, 3429, 3451, 3458, 3465, 3480, 3483, 3493,
852 3514, 3515, 3559, 3632, 3664, 3673, 3674, 3745, 3747, 3818, 3840, 3842,
853 3851, 3855, 3884, 3885, 3902, 3905, 3919, 3944, 3954, 3955, 3957, 3991,
854 3995, 3996, 4024, 4040, 4069, 4070, 4074, 4076, 4096, 4101, 4102, 4114,
855 4130, 4131, 4181, 4276, 4306, 4342, 4344, 4349, 4364, 4368, 4381, 4392,
856 4403, 4405, 4406, 4411, 4438, 4439, 4455, 4456, 4465, 4512, 4514, 4586,
859 * New Linux interfaces: epoll_pwait, sched_getcpu.
861 * New generic interfaces: strerror_l.
863 * nscd can now cache the services database. Implemented by Ulrich Drepper.
867 * The following bugs are resolved with this release:
869 39, 68, 192, 352, 388, 531, 935, 1006, 1201, 1203, 1386, 1782, 1783, 1784,
870 1785, 1786, 1787, 1951, 1974, 1996, 2072, 2098, 2125, 2134, 2158, 2182,
871 2349, 2376, 2386, 2389, 2415, 2418, 2420, 2423, 2450, 2451, 2466, 2472,
872 2473, 2477, 2498, 2499, 2501, 2502, 2505, 2507, 2508, 2509, 2517, 2526,
873 2569, 2571, 2592, 2611, 2625, 2632, 2644, 2662, 2680, 2683, 2684, 2693,
874 2695, 2703, 2734, 2751, 2764, 2766, 2775, 2792, 2821, 2823, 2832, 2841,
875 2843, 2883, 2892, 2908, 2914, 2926, 2961, 2978, 2980, 2987, 2997, 2998,
876 3013, 3018, 3034, 3040, 3044, 3123, 3124, 3137, 3138, 3143, 3155, 3189,
877 3225, 3251, 3252, 3253, 3273
879 * For Linux, the sorting of addresses returned by getaddrinfo now also
880 handles rules 3, 4, and 7 from RFC 3484. I.e., all rules are handled.
881 Implemented by Ulrich Drepper.
883 * Allow system admin to configure getaddrinfo with the /etc/gai.conf file.
884 Implemented by Ulrich Drepper.
886 * New Linux interfaces: splice, tee, sync_file_range, vmsplice.
888 * New iconv module for MIK. Contributed by Alexander Shopov.
890 * For sites with broken group and/or passwd database, the auto-propagate
891 option of nscd can prevent creating ID lookup entries from the results
892 of a name lookup and vice versa. This usually is no problem but some
893 site might have problems with the default behavior.
894 Implemented by Ulrich Drepper.
896 * Iterating over entire database in NIS can be slow. With the
897 SETENT_BATCH_READ option in /etc/default/nss a system admin can decide
898 to trade time for memory. The entire database will be read at once.
899 Implemented by Ulrich Drepper.
901 * The interfaces introduced in RFC 3542 have been implemented by
904 * Support for the new ELF hash table format was added by Ulrich Drepper.
906 * Support for priority inheritance mutexes added by Jakub Jelinek and
909 * Support for priority protected mutexes added by Jakub Jelinek.
911 * New locales: nr_ZA, pa_PK, ca_AD, ca_FR, ca_IT, el_CY, tr_CY, as_IN,
912 or_IN, csb_PL, fy_NL, sr_ME.
916 * More overflow detection functions.
918 * New iconv converters for IBM1025, IBM1122, IBM1137, IBM1153,
919 IBM1154, IBM1155, IBM1156, IBM1157, and IBM1158 contributed by Jiro Sekiba.
921 More converters for IBM803, IBM901, IBM902, IBM921, IBM1008, IBM1097,
922 IBM1112, IBM1123, IBM1130, IBM1140, IBM1141, IBM1142, IBM1143, IBM1144,
923 IBM1145, IBM1146, IBM1147, IBM1148, IBM1149, IBM1166, IBM1167, IBM4517,
924 IBM4899, IBM4909, IBM4971, IBM5347, IBM9030, IBM9066, IBM9448, IBM12712,
925 IBM16804, IBM1364, IBM1371, IBM1388, IBM1390, and IBM1399 contributed
926 by Masahide Washizawa.
928 * It is now possible to install audit libraries for the dynamic linker using
929 LD_AUDIT. Implemented by Ulrich Drepper.
931 * The LinuxThreads add-on, providing pthreads on Linux 2.4 kernels, is no
932 longer supported. The new NPTL implementation requires Linux 2.6 kernels.
933 For a libc and libpthread that works well on Linux 2.4 kernels, we
934 recommend using the stable 2.3 branch.
936 * The new function open_wmemstream acts like open_memstream,
937 but uses a wchar_t wide character buffer.
939 * The new function ppoll is an improved version of poll, similar to pselect.
941 * New interfaces: fdopendir, openat, fstatat, fchmodat, fchownat,
942 futimesat, faccessat, mkdirat, mkfifoat, mknodat,
943 renameat, unlinkat, linkat, symlinkat, readlinkat.
945 * New Linux kernel system calls: unshare,
946 inotify_init, inotify_add_watch, inotify_rm_watch.
948 * The euidaccess function is now also known by the alias eaccess,
949 for compatibility with some other systems.
951 * Timezone data updated to 2006b version.
955 * The following bugs are resolved with this release:
957 38, 253, 549, 622, 653, 721, 758, 851, 877, 915, 934, 955, 961,
958 1016, 1037, 1076, 1079, 1080, 1081, 1082, 1083, 1084, 1085, 1086,
959 1087, 1088, 1090, 1091, 1092, 1093, 1094, 1095, 1096, 1097, 1098,
960 1099, 1100, 1101, 1102, 1103, 1104, 1105, 1106, 1107, 1108, 1109,
961 1110, 1111, 1112, 1113, 1125, 1137, 1138, 1249, 1250, 1251, 1252,
962 1253, 1254, 1350, 1358, 1394, 1438, 1498, 1534
964 Visit <http://sources.redhat.com/bugzilla/> for the details of each bug.
966 * As of this release, GCC 4 can be used to compile the C Library.
968 * Timezone data updated to 2005m version.
972 * The following bugs are resolved with this release:
974 284, 592, 602, 626, 633, 640, 650, 661, 671, 681, 693, 700, 710, 719,
975 722, 723, 725, 726, 727, 728, 729, 730, 731, 732, 733, 734, 735, 736,
976 737, 738, 739, 740, 741, 742, 743, 744, 745, 765, 767, 768, 769, 776,
977 777, 787, 821, 822, 823, 825
979 Visit <http://sources.redhat.com/bugzilla/> for the details of each bug.
983 * Support for RFC 3678. Real implementations exist only for Linux so far.
984 Implemented by Ulrich Drepper.
986 * nscd can now cache entries persistently. Expiring entries are reloaded.
987 For speedups the cache can be shared in memory with client processes.
988 Implemented by Ulrich Drepper.
990 * nscd can now perform SELinux checks.
991 Implemented by Matthew Rickard <mjricka@epoch.ncsc.mil>.
993 * getaddrinfo queries are now cached. Canonical name lookup is performed
995 Implemented by Ulrich Drepper.
997 * The nothrow function attribute is used when headers are used by gcc when
998 compiling C code. This can avoid significant amounts of exception
1001 * The malloc functions perform more error checking and are stricter when
1002 it comes to reacting on errors. The default action is to terminate
1003 the process after showing an error message. Implemented by Ulrich Drepper.
1005 * Reverse lookups of IPv6 addresses does not use bit string or .ip6.int
1006 lookups anymore unless explicitly requested. Implemented by Ulrich Drepper.
1008 * Namespaces in ld.so are implemented. DSOs can be loaded in separate
1009 namespaces using the new function dlmopen(). This feature is of course,
1010 like most other dynamic loading functionality, not available in statically
1011 linked applications. Implemented by Ulrich Drepper.
1013 * Low-overhead boundary checking variants of string and some stdio functions
1014 were added. These are to be used in conjunction with a gcc patch by
1015 Jakub Jelinek which adds calls to these functions if possible.
1016 Implemented by Jakub Jelinek and Ulrich Drepper.
1018 * Old code for several operating systems and machine architectures that
1019 have not been in working condition in a long time have been removed from
1020 the main source tree maintained by the GNU C Library's maintainers.
1021 These files are now reside in the separate `ports' source module
1022 that is usable as an add-on when building the library.
1026 * New functions `dladdr1' and `dlinfo' in <dlfcn.h> provide more ways to
1027 interrogate the dynamic linker, compatible with the Solaris interface.
1029 * ELF thread-local storage support (TLS) now works on PowerPC and PowerPC64;
1030 implemented by Paul Mackerras, Steven Munroe, and Roland McGrath.
1032 * getifaddrs now uses the netlink interface on Linux to get its information.
1033 Implemented by Thorsten Kukuk.
1035 * getaddrinfo now implements AI_V4MAPPED, AI_ALL, and AI_ADDRCONF.
1036 Implemented by Ulrich Drepper.
1038 * support for non-executable stacks on x86 has been added. Changes mostly
1041 * regex is now much faster for multibyte locales. Changes by Jakub Jelinek
1044 * getaddrinfo now performs destination address selection according to
1049 * Thread-safe interfaces for many functions that access locale data
1050 were added in version 2.3, but these features were omitted from NEWS.
1051 Many functions have variants with an `_l' suffix that take a `locale_t'
1052 object as a parameter rather than consulting the current locale.
1053 The new functions `newlocale', `duplocale', and `freelocale' in <locale.h>
1054 create and maintain `locale_t' objects. Additionally, the new function
1055 `uselocale' sets "the current locale" (as used by functions not so
1056 parameterized) set for an individual thread. These features were added
1057 in version 2.3, implemented by Ulrich Drepper and Roland McGrath.
1059 * The functions getresuid, getresgid, setresuid, and setresgid, which
1060 have long been available on Linux, are now declared in <unistd.h>
1061 and are now also available on the Hurd.
1063 * ELF thread-local storage support (TLS) now works on x86-64.
1065 * The new dynamic string token $LIB is expanded in shared library names.
1066 This normally expands to lib, but on some 64-bit platforms to lib64 instead.
1068 * Aldy Hernandez contributed complete software floating point support for
1069 PowerPC machines with no FPU.
1071 * fexecve is implemented on Linux.
1073 * The `btowc' function should work at least twice as fast due to
1074 specialized callbacks in the iconv modules. Implemented by Bruno Haible.
1076 * With approriate thread add-ons cancelable functions are now implemented
1077 in libc.so as well. No need to call the function in libpthread. This
1078 change allowed to finally disable the incorrect and expensive handling
1079 of weak definition in ld.so.
1081 * Yet more PLT entries in libc.so have been removed. We finally arrived
1082 at the bare minimum. Startup times improved appropriately.
1084 * Support for the new Linux/x86 system call interface was added. The
1085 AT_SYSINFO auxiliary vector entry is recognized and handled.
1089 * Masahide Washizawa contributed iconv modules for IBM1163 and IBM1164
1092 * iconv (the program and the interface) now accepts empty names (excluding
1093 options like //TRANSLIT) to mean "use charset of current locale".
1095 * localedef can now transliterate characters in strings which are not in
1096 the provided charmap. The information from the input locale is used.
1098 * Prelinking support was added for ELF targets. This requires additional
1099 tools and recent versions of the GNU binutils. Contributed by Jakub Jelinek.
1101 * Read-only stdio streams now use mmap to speed up operation by eliminating
1102 copying and buffer underflows. To use add 'm' to the mode string of
1103 the fopen/fdopen/freopen call. Implemented by Ulrich Drepper.
1105 * The malloc functions were completely rewritten by Wolfram Gloger based
1106 on Doug Lea's malloc-2.7.0.c.
1108 * Isamu Hasegawa contributed a completely new and POSIX-conformant
1109 implementation of regex.
1111 * Bruno Haible upgraded the iconv and locale implementation to support
1114 * Contents of the LC_* and LANG environment variables in the CEN style are
1115 not recognized anymore. It never was used. Change by Ulrich Drepper.
1117 * The runtime (ld.so, libc, libpthread for Linux) now can handle the ELF
1118 thread-local storage (TLS) ABI on some platforms.
1119 Changes by Ulrich Drepper. SH support by Kaz Kojima.
1121 * Bruno Haible contributed iconv converters for ISO-2022-JP-3, SHIFT JIS-X0213,
1122 EUC-JISX0213, and TSCII.
1124 * New header <ifaddrs.h> with functions `getifaddrs' and `freeifaddrs':
1125 BSD-compatible interface for getting all network interface addresses.
1126 Implementation for IPv4 by Roland McGrath.
1128 * Loading of locale data is faster due to the introduction of a locale
1129 archive. Implemented by Roland McGrath and Ulrich Drepper.
1131 * Startup times are significantly reduced by not using exported functions
1132 inside the library itself. Changes by Jakub Jelinek, Roland McGrath,
1135 * Steven Munroe contributed a port to PowerPC64/Linux.
1139 * The Hurd now uses the GNU libio implementation of stdio rather than the
1140 old GNU stdio implementation, and uses a new ABI (libc.so.0.3).
1142 * The Hurd on x86 now has the `ioperm' function and <sys/io.h> header file
1143 with the same behavior as the Linux system call of the same name.
1147 * Stephen Moshier implemented log2, log10, powl and cbrtl for the
1148 128-bit long double format.
1150 * Masahide Washizawa contributed iconv modules for IBM1132, IBM1133, IBM1160,
1151 IBM1161, and IBM1162 charsets.
1153 * Andreas Jaeger contributed a port to x86-64/Linux.
1155 * Peter Bruin contributed a port to PowerPC/Hurd.
1157 * libc functions using I/O streams now can handle wide-oriented streams
1160 * optimizations in the dynamic linker. Binaries created by recent binutils
1161 versions start up quicker due to reduced time spent on relocations.
1163 * Support for use of gcc3 added by Jakub Jelinek and HJ Lu.
1167 * Stephen Moshier implemented cosh, expm1, log1p, acos, sinh, tanh,
1168 asinh, atanh, j0 for the 128-bit long double format.
1170 * Bruno Haible updated all the code handling Unicode in some form to
1171 support Unicode 3.1.
1173 * Speed of regex for single-byte locales is back to previous levels.
1174 Patch by Isamu Hasegawa.
1176 * Alpha, SPARC, and IA-64 now also using floating stacks.
1178 * Startup time of internationalized applications greatly improved through
1179 iconv cache. Use iconvconfig to generate the cache file.
1180 Contributed by Ulrich Drepper.
1182 * The IA-64 specific part of ld.so was rewritten to eliminate some pretty
1183 severe performance problems. Patch by David Mosberger.
1185 * The Hurd port got a lot more functionality like AIO, various stdio
1186 extensions, etc. Mainly done by Roland McGrath.
1188 * mtrace can now lookup symbols in shared libraries.
1192 * Intel's IA-64 math library is largely integrated. It provides fast and
1193 accurate implementatations for most basic and standard math functions
1194 in float, double, and long double format.
1196 * Stephen Moshier implemented j0, j1, jn, y0, y1, yn, lgamma, erf, erfc,
1197 and asin for the 96-bit long double format and asin, log, tan for the
1198 128-bit long double format.
1200 * The beginning of a last-bit accurate math library by IBM Haifa were added.
1201 The basic double functions exist today. Contributed by Abraham Ziv
1202 <ziv@il.ibm.com>, Moshe Olshansky <olshansk@il.ibm.com>, Ealan Henis
1203 <ealan@il.ibm.com>, and Anna Reitman <reitman@il.ibm.com>.
1205 * An asynchronous name lookup library was added. The interface is designed
1206 after POSIX AIO. The proposal was circulated beforehand to get comments.
1207 No negative ones came in. Implemented by Ulrich Drepper.
1209 * Port to S390/64bit contributed by Martin Schwidefsky
1210 <schwidefsky@de.ibm.com>.
1212 * David Mosberger <davidm@hpl.hp.com> implemented the setcontext family
1213 of functions for Linux/IA-64.
1215 * The RPC code is now thread safe. Threads can now use the same service
1216 of different services at the same time. Patch by Eric Norum
1217 <eric.norum@usask.ca> with some help by Ulrich Drepper.
1219 * Martin Schwidefsky <schwidefsky@de.ibm.com> implemented the setcontext
1220 family of functions for Linux/S390.
1222 * Ulrich Drepper <drepper@redhat.com> implemented the setcontext family
1223 of functions for Linux/x86.
1225 * Port to Linux/CRIS contributed by Axis Communications.
1229 * Lots of headers were cleaned up. Using the tool in the conform/ subdir
1230 we can now check for namespace violations and missing declarations. The
1231 result is that almost all headers are now Unix-compliant (as defined in
1232 the upcoming XPG6). The negative side is that some programs might need
1233 corrections, too, if they depend on the incorrect form of the headers in
1234 previous versions which defined too many symbols and included too many
1237 * regex now handles multibyte character sets correctly.
1238 Contributed by Isamu Hasegawa <isamu@yamato.ibm.com>.
1240 * iconv (the program) does now conform to the upcoming XPG6 and handles
1241 charmaps. Instead of the charset names the path of charmaps can be
1242 provided and the conversion happens based on this data.
1243 Contributed by Ulrich Drepper.
1245 * The locale program now provides detailed information about the installed
1250 only lists the names of the supported locales
1254 provides details such as country, language, and codeset name.
1255 Contributed by Ulrich Drepper.
1259 * The gencat program now parses the input file according to the charset
1260 selected by the LC_CTYPE category. This is important for stateful
1261 character sets. To make generating catalogs easier there is a way
1262 to overwrite the charset selected by the locale: before the first
1263 message or $ quote line the catalog can contain a line like
1265 $ codeset=ISO-8859-2
1267 to select the charset (ISO-8859-2 in this case).
1269 Implemented by Shinya Hanataka and Ulrich Drepper.
1271 * New codeset conversion modules: IBM-922 (Estonia PC codeset),
1272 IBM-1124 (Ukraine PC codeset), IBM-1129 (Vietnamese PC codeset).
1273 Contributed by Masahide Washizawa <washi@jp.ibm.com>.
1275 * Optimized string functions for Alpha ev6 and ev67 by Richard Henderson
1276 <rth@redhat.com> and Rick Gorton <rick.gorton@alpha-processor.com>.
1278 * The LANGUAGE environment variable is now ignored unless the locale is
1279 changed from the default "C" locale.
1281 * The usual bug fixes.
1285 * Greg McGary added runtime support for bounds checking using gcc's
1286 new -fbounded-pointers option. ix86 target is complete. PowerPC
1289 * Thorsten Kukuk added secure mode support to nscd.
1291 * The Berkeley db libraries have been removed.
1293 Related, the nss_db module is now in a separate package since it
1294 obviously requires a database library being available.
1296 * Wide character I/O streams implemented by Ulrich Drepper.
1298 * Functions from the extended socket API added by Ulrich Drepper.
1300 * Functions feenableexcept and fedisableexcept to control the
1301 behaviour of individual exceptions have been added by Andreas Jaeger.
1303 * ldconfig program added by Andreas Jaeger and Jakub Jelinek.
1305 * The resolver code has been updated from bind 8.2.3-T5B which supports
1306 threads. The integration was done by Andreas Jaeger, Adam D. Bradley,
1309 This change could in some situations effect backward compatibility. Since
1310 now `_res' is a thread-local instead of a global variable, modifying it
1311 in one thread does not have any effect in other threads.
1313 The resolver library was also extended to allow IPv6 as the transport
1314 protocol for the requests. This work was done by Stig Venaas.
1316 * Compatibility code for K&R C compilers has been removed from the
1317 header files. A ISO C compiler is needed to use the library
1318 (conforming to either C89 or C99 standard).
1320 * Complete rewrite of the localedef program to support multibyte character
1321 sets. Implement handling of ISO 14651 and ISO 14652. Rewrite strcoll,
1322 strxfrm, wcscoll, and wcsxfrm functions. Make isw*() functions work.
1323 Implemented by Ulrich Drepper.
1325 Bruno Haible significantly improved the generation and use of the data
1326 structures for the wide character tables.
1328 * Plural handling in gettext implemented by Ulrich Drepper.
1330 * The utmp daemon has been removed.
1332 * The port to MIPS-Linux has been finished by Andreas Jaeger.
1334 * A port to Hitachi SH3 and SH4 has been contributed by Kazumoto Kojima
1337 * POSIX clocks and timers implemented by Kaz Kylheku and Ulrich Drepper.
1339 * POSIX barriers implemented by Kaz Kylheku.
1341 * POSIX spawn function family implemented by Ulrich Drepper.
1343 * POSIX spinlocks are now available.
1345 * Timed wait functions for mutex, rwlock, and semaphores are implemented.
1347 * the configure option --enable-kernel=X.Y.Z allows to strip out
1348 compatibility for kernel versions before X.Y.Z. This is currently only
1349 implemented for Linux.
1351 * the sockaddr_in6 structure changed. The IPv6 working group added a new
1352 field sin6_scope_id. This means that all programs using IPv6 should be
1353 recompiled. Don't expect binary compatibility with previous glibc
1356 * various conversion modules for IBM character sets contributed by
1359 * IA-64 port by Jes Sorensen and HJ Lu.
1373 * New ISO C 9x function _Exit, imaxabs, and imaxdiv are added.
1375 * New xdr functions are added; some rpc functions are now 64bit clean.
1377 * Fixed a number of bugs and memory leaks (especially in NIS+ code).
1379 * Fixed known incompatibilities with glibc 2.0.
1381 * New functions lock64, strchrnul, rawmemchr, getutmp and getutmpx.
1383 * Optimized a number of functions (especially the ELF dynamic loader).
1385 * Update timezone data files.
1387 * lots of charmaps corrections
1389 * some new locale definitions and charmaps
1394 * Richard Henderson corrected size of struct timeval on Linux/Alpha to
1395 conform to POSIX member type requirements. Symbol versions have been
1396 adjusted as needed within the library, and for direct use by applications,
1397 but there is potential for problems if third-party libraries use
1398 struct timeval as part of their interface. This does not present
1399 a problem for X and other "essential" system libraries.
1401 * An additional locale model to support C++ Standard Library locale
1402 model and probably more was implemented by Ulrich Drepper.
1404 * Eric Youngdale and Ulrich Drepper implemented versioning of objects on
1407 * Miles Bader provided the `argp' function family to support hierachical
1408 command line argument parsing, layered on top of getopt.
1410 * strtod accepts new hexadecimal floating-point format from ISO C 9X.
1412 * printf has two new specifiers %a and %A to print hexadecimal flaoting-point
1415 * scanf recognizes the %a and %A format for scanning floating point numbers.
1417 * the new headers <stdint.h> and <inttypes.h> from ISO C 9X provides
1418 information and interfaces for the available integer types.
1420 * about 130 new math functions were added to implement the ISO C9x math
1423 * the new header <complex.h> contains definitions of the complex math
1424 functions from ISO C 9X.
1426 * the new header <tgmath.h> defines generic macros to use complex or
1427 real valued functions.
1429 * Thorsten Kukuk provided an implementation for NIS+, securelevel 0, 1 and 2.
1431 * Andreas Jaeger provided a test suite for the math library.
1433 * Mark Kettenis implemented the utmpx interface and an utmp daemon.
1435 * Ulrich Drepper added character set conversion functions (iconv).
1437 * Optimized string functions have been added.
1439 * The localedata addon is now part of glibc.
1441 * An implementation of profiling shared libraries was added by Ulrich Drepper.
1443 * Thorsten Kukuk and Ulrich Drepper provided an implementation for a caching
1444 daemon for NSS (nscd).
1446 Missing a better place here are some numbers on improvements. Under
1447 Linux 2.1.125 un-tar-ing the kernel sources takes
1451 using local files 12.19s 6.88s 22.91s
1453 using NIS 13.92s 8.91s 26.34s
1455 using NIS & nscd 10.37s 7.34s 25.30s
1457 using NIS+ 27.57s 30.37s 640.46s
1459 using NIS+ & nscd 10.25s 7.83s 26.51s
1461 using NIS & old nscd [1] 13.83s 8.32s 29.60s
1463 Keep in mind that non-namelookup related operations dominate above times.
1464 It was just a common complain that using NIS+ unpacking the kernel is
1467 [1] The old nscd implementation is not available anymore since it was
1468 distributed with glibc up to version 2.0.98 and thus is now replaced.
1470 * Tim Waugh provided an implementation of the POSIX.2 wordexp function family.
1472 * Mark Kettenis provided a Hesiod NSS module.
1474 * The ELF dynamic loader knows how to process dynamic string tokens ($ORIGIN
1475 and $PLATFORM) in RPATHs and similar strings (Ulrich Drepper).
1477 * rcmd can now handle netgroups (Dick Streefland).
1479 * A port to the ARM was contributed by Phil Blundell, Pat Beirne and Scott
1482 * Support for the IPv6 protocol has been added to the socket API, as per the
1483 latest draft standards.
1485 * Support for Linux 2.2 has been added.
1487 * Interface changes relative to the latest 2.0.x release:
1488 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1489 addseverity NEW: Unix98
1490 alphasort64 NEW: LFS
1491 argp_err_exit_status NEW: argp, GNU ext
1492 argp_error NEW: argp, GNU ext
1493 argp_failure NEW: argp, GNU ext
1494 argp_help NEW: argp, GNU ext
1495 argp_parse NEW: argp, GNU ext
1496 argp_program_bug_address NEW: argp, GNU ext
1497 argp_program_version NEW: argp, GNU ext
1498 argp_program_version_hook NEW: argp, GNU ext
1499 argp_state_help NEW: argp, GNU ext
1500 argp_usage NEW: argp, GNU ext
1501 authdes_create NEW: Secure RPC
1502 authdes_getucred NEW: Secure RPC
1503 authdes_pk_create NEW: Secure RPC
1504 backtrace NEW: GNU ext.
1505 backtrace_symbols NEW: GNU ext.
1506 backtrace_symbols_fd NEW: GNU ext.
1508 cacosf NEW: ISO C 9x
1509 cacosh NEW: ISO C 9x
1510 cacoshf NEW: ISO C 9x
1511 cacoshl NEW: ISO C 9x
1512 cacosl NEW: ISO C 9x
1519 casinf NEW: ISO C 9x
1520 casinh NEW: ISO C 9x
1521 casinhf NEW: ISO C 9x
1522 casinhl NEW: ISO C 9x
1523 casinl NEW: ISO C 9x
1525 catanf NEW: ISO C 9x
1526 catanh NEW: ISO C 9x
1527 catanhf NEW: ISO C 9x
1528 catanhl NEW: ISO C 9x
1529 catanl NEW: ISO C 9x
1530 cbc_crypt NEW: Secure RPC
1534 ccoshf NEW: ISO C 9x
1535 ccoshl NEW: ISO C 9x
1541 cimagf NEW: ISO C 9x
1542 cimagl NEW: ISO C 9x
1543 clearerr_locked REMOVED
1544 clntunix_create NEW: sunrpc ext
1546 clog10 NEW: ISO C 9x
1547 clog10f NEW: ISO C 9x
1548 clog10l NEW: ISO C 9x
1558 cprojf NEW: ISO C 9x
1559 cprojl NEW: ISO C 9x
1561 crealf NEW: ISO C 9x
1562 creall NEW: ISO C 9x
1567 csinhf NEW: ISO C 9x
1568 csinhl NEW: ISO C 9x
1571 csqrtf NEW: ISO C 9x
1572 csqrtl NEW: ISO C 9x
1576 ctanhf NEW: ISO C 9x
1577 ctanhl NEW: ISO C 9x
1579 des_setparity NEW: Secure RPC
1580 ecb_crypt NEW: Secure RPC
1581 endutxent NEW: Unix98
1583 exp10f NEW: ISO C 9x
1584 exp10l NEW: ISO C 9x
1588 fattach NEW: STREAMS
1589 fdetach NEW: STREAMS
1593 feclearexcept NEW: ISO C 9x
1594 fegetenv NEW: ISO C 9x
1595 fegetexceptflag NEW: ISO C 9x
1596 fegetround NEW: ISO C 9x
1597 feholdexcept NEW: ISO C 9x
1599 feraiseexcept NEW: ISO C 9x
1600 ferror_locked REMOVED
1601 fesetenv NEW: ISO C 9x
1602 fesetexceptflag NEW: ISO C 9x
1603 fesetround NEW: ISO C 9x
1604 fetestexcept NEW: ISO C 9x
1605 feupdateenv NEW: ISO C 9x
1606 fflush_locked REMOVED
1610 fgets_unlocked NEW: GNU ext.
1611 fileno_locked REMOVED
1623 fputc_locked REMOVED
1624 fputs_unlocked NEW: GNU ext.
1625 fread_unlocked NEW: GNU ext.
1630 fstatvfs NEW: Unix98
1634 ftruncate64 NEW: LFS
1636 fwrite_unlocked NEW: GNU ext.
1637 gai_strerror NEW: IPv6
1641 getchar_locked REMOVED
1643 getdate_err NEW: Unix98
1644 getdate_r NEW: GNU ext.
1646 getnameinfo NEW: IPv6
1647 getnetname NEW: Secure RPC
1648 getpmsg NEW: STREAMS
1649 getpt NEW: Unix98 PTY
1650 getrlimit64 NEW: LFS
1651 getutxent NEW: Unix98
1652 getutxid NEW: Unix98
1653 getutxline NEW: Unix98
1654 glob64 NEW: GNU ext.
1655 globfree64 NEW: GNU ext.
1656 gnu_get_libc_release NEW: GNU ext.
1657 gnu_get_libc_version NEW: GNU ext.
1658 grantpt NEW: Unix98 PTY
1659 host2netname NEW: Secure RPC
1661 iconv_close NEW: iconv
1662 iconv_open NEW: iconv
1663 if_freenameindex NEW: IPv6
1664 if_indextoname NEW: IPv6
1665 if_nameindex NEW: IPv6
1666 if_nametoindex NEW: IPv6
1667 in6addr_any NEW: IPv6
1668 in6addr_loopback NEW: IPv6
1669 inet6_isipv4mapped NEW: IPv6
1670 isastream NEW: STREAMS
1671 iswblank NEW: GNU ext.
1672 key_decryptsession NEW: Secure RPC
1673 key_decryptsession_pk NEW: Secure RPC
1674 key_encryptsession NEW: Secure RPC
1675 key_encryptsession_pk NEW: Secure RPC
1676 key_gendes NEW: Secure RPC
1677 key_get_conv NEW: Secure RPC
1678 key_secretkey_is_set NEW: Secure RPC
1679 key_setnet NEW: Secure RPC
1680 key_setsecret NEW: Secure RPC
1681 llrint NEW: ISO C 9x
1682 llrintf NEW: ISO C 9x
1683 llrintl NEW: ISO C 9x
1684 llround NEW: ISO C 9x
1685 llroundf NEW: ISO C 9x
1686 llroundl NEW: ISO C 9x
1691 lrintf NEW: ISO C 9x
1692 lrintl NEW: ISO C 9x
1693 lround NEW: ISO C 9x
1694 lroundf NEW: ISO C 9x
1695 lroundl NEW: ISO C 9x
1697 makecontext NEW: Unix98
1698 mempcpy NEW: GNU ext.
1701 modify_ldt NEW: kernel
1705 nearbyint NEW: ISO C 9x
1706 nearbyintf NEW: ISO C 9x
1707 nearbyintl NEW: ISO C 9x
1708 netname2host NEW: Secure RPC
1709 netname2user NEW: Secure RPC
1710 nexttoward NEW: ISO C 9x
1711 nexttowardf NEW: ISO C 9x
1712 nexttowardl NEW: ISO C 9x
1716 passwd2des NEW: Secure RPC
1718 pow10f NEW: GNU ext.
1719 pow10l NEW: GNU ext.
1722 printf_size NEW: GNU ext.
1723 printf_size_info NEW: GNU ext.
1724 profil_counter REMOVED
1725 pthread_mutexattr_getkind_np REPLACED
1726 pthread_mutexattr_setkind_np REPLACED
1727 ptsname NEW: Unix98 PTY
1728 ptsname_r NEW: Unix98 PTY
1730 putchar_locked REMOVED
1731 putgrent NEW: GNU ext.
1733 putpmsg NEW: STREAMS
1734 pututxline NEW: Unix98
1738 readdir64_r NEW: LFS
1739 remquo NEW: ISO C 9x
1740 remquof NEW: ISO C 9x
1741 remquol NEW: ISO C 9x
1743 roundf NEW: ISO C 9x
1744 roundl NEW: ISO C 9x
1746 scalbln NEW: ISO C 9x
1747 scalblnf NEW: ISO C 9x
1748 scalblnl NEW: ISO C 9x
1750 sendfile NEW: kernel
1751 setcontext NEW: Unix98
1752 setrlimit64 NEW: LFS
1753 setutxent NEW: Unix98
1755 sigignore NEW: Unix98
1756 sigqueue NEW: POSIX.1b
1757 sigrelse NEW: Unix98
1758 sigset NEW: POSIX.1b
1759 sigtimedwait NEW: POSIX.1b
1760 sigwaitinfo NEW: POSIX.1b
1761 sincos NEW: GNU ext.
1762 sincosf NEW: GNU ext.
1763 sincosl NEW: GNU ext.
1767 strcasestr NEW: GNU ext.
1768 strtoimax NEW: ISO C 9x
1769 strtoumax NEW: ISO C 9x
1770 strverscmp NEW: GNU ext.
1771 svcauthdes_stats NEW: Secure RPC
1772 svcunix_create NEW: sunrpc etx
1773 svcunixfd_create NEW: sunrpc ext
1774 swapcontext NEW: Unix98
1775 tcgetsid NEW: Unix98 PTY
1776 tdestroy NEW: GNU ext.
1777 tgamma NEW: ISO C 9x
1778 tgammaf NEW: ISO C 9x
1779 tgammal NEW: ISO C 9x
1783 truncf NEW: ISO C 9x
1784 truncl NEW: ISO C 9x
1786 unlockpt NEW: Unix98 PTY
1787 updwtmpx NEW: Unix98
1788 user2netname NEW: Secure RPC
1789 utmpxname NEW: Unix98
1790 versionsort NEW: GNU ext.
1791 versionsort64 NEW: GNU ext.
1793 wcscasecmp NEW: GNU ext.
1794 wcsncasecmp NEW: GNU ext.
1795 wcsnlen NEW: GNU ext.
1796 wcstoimax NEW: ISO C 9x
1797 wcstoll NEW: ISO C 9x
1798 wcstoull NEW: ISO C 9x
1799 wcstoumax NEW: ISO C 9x
1801 wordexp NEW: POSIX.2
1802 wordfree NEW: POSIX.2
1803 write_profiling REMOVED
1804 xdecrypt NEW: Secure RPC
1805 xdr_authdes_cred NEW: Secure RPC
1806 xdr_authdes_verf NEW: Secure RPC
1807 xdr_cryptkeyarg NEW: Secure RPC
1808 xdr_cryptkeyarg2 NEW: Secure RPC
1809 xdr_cryptkeyres NEW: Secure RPC
1810 xdr_getcredres NEW: Secure RPC
1811 xdr_key_netstarg NEW: Secure RPC
1812 xdr_key_netstres NEW: Secure RPC
1813 xdr_keybuf NEW: Secure RPC
1814 xdr_keystatus NEW: Secure RPC
1815 xdr_netnamestr NEW: Secure RPC
1816 xdr_sizeof NEW: Secure RPC
1817 xdr_unixcred NEW: sunrpc ext
1818 xencrypt NEW: Secure RPC
1819 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1830 * inet_ntoa is thread-safe
1832 * updwtmp is moved from libutil to libc
1834 * rewrite of cbrt function
1836 * update of timezone data
1850 * add atoll function
1852 * fix complex problems in Berkeley DB code
1854 * fix math functions
1858 * fixed lots of header problems (especially Linux/GNU specific)
1860 * dynamic loader preserves all registers
1862 * Roland McGrath provided support for handling of auxiliary objects in
1863 the ELF dynamic loader.
1865 * support for parallel builds is improved
1869 * GNU extensions are no longer declared by default. To enable them you
1870 must define the macro `_GNU_SOURCE' in your program or compile with
1873 * The library has changed from using GNU ld symbol aliases to using weak
1874 symbols where available. The ELF object file format supports weak
1875 symbols; GNU ld also supports weak symbols in the a.out format. (There
1876 is also now support for other GNU ld extensions in ELF. Use the
1877 `--with-elf' option to configure to indicate you have ELF, and
1878 `--with-gnu-ld' if using GNU ld.) This change resulted in the deletion
1879 of many files which contained only symbol aliases, reducing the size of
1880 the source and the compiled library; many other files were renamed to
1881 less cryptic names previously occupied by the symbol alias files.
1882 There is a new header file <elf.h> for programs which operate on
1883 files in the ELF format.
1885 * Converted to Autoconf version 2, so `configure' has more options.
1886 Run `configure --help' to see the details.
1888 * The library can now be configured to build profiling, highly-optimized
1889 (but undebuggable), and/or shared libraries (ELF with GNU ld only). The
1890 `--enable-profile', `--enable-omitfp', and `--enable-shared' options to
1891 `configure' enable building these extra libraries. The shared library is
1892 built by default when using both ELF and GNU ld. When shared libraries
1893 are enabled, the new library `-ldl' is available for arbitrary run-time
1894 loading of shared objects; its interface is defined in <dlfcn.h>. The
1895 new header file <link.h> gives access to the internals of the run-time
1896 dynamic linker, `ld.so'. The shell script `ldd' is similar to the
1897 application of same name on other systems and it provides information
1898 about dynamically linked binaries.
1900 * The C library now provides the run-time support code for profiling
1901 executables compiled with `-pg'. Programs can control the profiling code
1902 through the interface in <sys/gmon.h>. The `gmon.out' files written by
1903 the GNU C library can be read only by GNU `gprof' (from GNU binutils);
1904 the support for this file format was contributed by David Mosberger-Tang.
1906 * The math code has been replaced with a math library based on fdlibm from
1907 Sun, and modified by JT Conklin and Ulrich Drepper with i387 support, by
1908 Ian Taylor with `float' functions and by Ulrich Drepper with `long double'
1909 functions. The math functions now reside in a separate library, so
1910 programs using them will need to use `-lm' their linking commands.
1912 * John C. Bowman contributed optimized ix87 assembler inline functions.
1914 * Ulrich Drepper has contributed support for an `/etc/nsswitch.conf'
1915 mechanism similar to that found in Solaris 2. This is now used for the
1916 group, passwd, hosts, networks, services, protocols, rpc, ethers,
1917 shadow, netgroup, publickey, and alias databases. The `nsswitch.conf'
1918 file controls what services are used for each individual database. This
1919 works by loading shared libraries with names specified in `nsswitch.conf',
1920 so service modules can be changed or added at any time without even
1921 relinking any program. Currently there are the file, db, and NIS based
1922 NSS services available.
1924 * The new functions `strtoq' and `strtouq' parse integer values from
1925 strings, like `strtol' and `strtoul', but they return `long long int' and
1926 `unsigned long long int' values, respectively (64-bit quantities).
1928 * The new functions `strtof' and `strtold' parse floating-point values from
1929 strings, like `strtod', but they return `float' and `long double' values,
1930 respectively (on some machines `double' and `long double' are the same).
1932 * Ulrich Drepper has contributed new implementations of the floating-point
1933 printing and reading code used in the `printf' family of functions and
1934 `strtod', `strtof', and `strtold'. These new functions are perfectly
1935 accurate, and much faster than the old ones.
1937 * The implementation of the POSIX locale model was completely rewritten by
1938 Ulrich Drepper. This includes the new programs `localedef' and `locale'
1939 to compile the POSIX locale definition.
1941 * The former dummy implementations of the strcoll and strxfrm function are
1942 now replaced by fully functional code contributed by Ulrich Drepper. The
1943 collation information comes from the POSIX locale definitions.
1945 * The new header <langinfo.h> defines an interface for accessing
1946 various locale-dependent data (using the locale chosen with `setlocale').
1948 * Ulrich Drepper has contributed a new suite of functions for operation on
1949 wide-character and multibyte-character strings, in <wchar.h>;
1950 and classification and case conversion of wide characters, in <wctype.h>.
1951 These new functions are conforming to the ISO C, Amendement 1 specification.
1953 * There is now a second implementation of the standard I/O library available.
1954 It comes from GNU libg++ as was written by Per Bothner, heavily modified
1955 by Hongjiu Lu and made thread safe by Ulrich Drepper.
1957 * You can now use positional parameter specifications in format strings
1958 for the `printf' and `scanf' families of functions. For example,
1959 `printf ("Number %2$d, Mr %1$s\n", "Jones", 6);'' prints
1960 ``Number 6, Mr Jones''. This is mainly useful when providing different
1961 format strings for different languages, whose grammars may dictate
1962 different orderings of the values being printed. To support this
1963 feature, the interface for `register_printf_handler' has changed; see
1964 the header file <printf.h> for details.
1966 * The `printf' and `scanf' families of functions now understand a new
1967 formatting flag for numeric conversions: the ' flag (e.g. %'d or %'f) says
1968 to group numbers as indicated by the locale; for `scanf' and friends, this
1969 says to accept as valid only a number with all the proper grouping
1970 separators in the right places. In the default "C" locale, numbers are
1971 not grouped; but locales for specific countries will define the usual
1972 conventions (i.e. separate thousands with `,' in the US locale).
1974 * The pgrp functions have been regularized, slightly incompatibly but much
1975 less confusingly. The core functions are now `getpgid' and `setpgid',
1976 which take arguments for the PID to operate on; the POSIX.1 `getpgrp' (no
1977 argument) and BSD `setpgrp' (identical to `setpgid') functions are
1978 provided for compatibility. There is no longer an incompatible `getpgrp'
1979 with an argument declared under _BSD_SOURCE; no BSD code uses it.
1981 * The new header file <fts.h> and suite of functions simplify programs that
1982 operate on directory trees. This code comes from 4.4 BSD.
1984 * The resolver code has been updated from the BIND 4.9.5-P1 release.
1985 Parts of the code were heavily modified by Ulrich Drepper to fit in the
1986 NSS scheme used in glibc.
1988 * There is a new malloc debugging hook `__memalign_hook'.
1990 * There are new typedefs `ushort' for `unsigned short int' and `uint' for
1991 `unsigned int' in <sys/types.h>. These are for compatibility only and
1992 their use is discouraged.
1994 * The `-lmcheck' library to enable standard malloc debugging hooks is now
1995 done differently, so that it works even without GNU ld.
1997 * New function `euidaccess' checks allowed access to a file like `access',
1998 but using the effective IDs instead of the real IDs.
2000 * The time zone data files have been updated for the latest and greatest
2001 local time conventions of the countries of the world.
2003 * The new function `dirfd' extracts the file descriptor used by a DIR stream;
2006 * The new functions `ecvt', `fcvt', and `gcvt' provide an obsolete interface
2007 for formatting floating-point numbers. They are provided only for
2008 compatibility; new programs should use `sprintf' instead. There are
2009 also equivalent function for the `long double' floating-point type and
2010 all functions also exist in a reentrant form.
2012 * The new auxiliary library `-lutil' from 4.4 BSD contains various
2013 functions for maintaining the login-record files (primarily of use to
2014 system programs such as `login'), and convenient functions for
2015 allocating and initializing a pseudo-terminal (pty) device.
2017 * Ulrich Drepper has contributed new support for System V style
2018 shared memory and IPC on systems that support it.
2020 * Ulrich Drepper has contributed several miscellaneous new functions found
2021 in System V: The `hsearch' family of functions provide an effective
2022 implementation of hash tables; `a64l' and `l64a' provide a very simple
2023 binary to ASCII mapping; `drand48' and friends provide a 48-bit random
2026 * Ulrich Drepper has contributed new reentrant counterparts for the
2027 `random' and `hsearch' families of functions; `random_r', `hsearch_r', etc.
2029 * Ulrich Drepper has contributed new, highly-optimized versions of several
2030 string functions for the i486/Pentium family of processors.
2032 * Ulrich Drepper has updated the Linux-specific code, based largely
2033 on work done in Hongjiu Lu's version of GNU libc for Linux.
2034 The GNU library now supports Linux versions 2.0.10 and later,
2035 using the ELF object file format (i[3456]86-*-linux).
2037 * Andreas Schwab has ported the C library to Linux/m68k (m68k-*-linux).
2039 * David Mosberger-Tang and Richard Henderson have ported the C library
2040 to Linux/Alpha (alpha-*-linux). Richard Henderson contributed the
2041 dynamic linking support for ELF/Alpha.
2043 * Richard Henderson contributed several Alpha optimized assembler function
2044 for arithmetic and string handling.
2046 * Ulrich Drepper has contributed a new set of message catalog functions to
2047 support multiple languages using the <libintl.h> interface, for use with
2048 his new package GNU gettext. Translation volunteers have contributed
2049 catalogs of the library's messages in Spanish, German, and Korean.
2051 * For compatibility with XPG4, Ulrich Drepper has contributed the `gencat'
2052 program and the `catgets' function for reading the catalog files it
2053 creates. (The <libintl.h> interface is preferred; we include the
2054 <nl_types.h> interface using `catgets' only for source compatibility with
2055 programs already written to use it.)
2057 * New header file <values.h> gives SVID-compatible names for <limits.h>
2060 * Various new macros, declarations, and small header files for compatibility
2063 * New function `group_member' is a convenient way to check if a process has
2064 a given effective group ID.
2066 * When using GCC 2.7 and later, the socket functions are now declared in a
2067 special way so that passing an argument of type `struct sockaddr_in *',
2068 `struct sockaddr_ns *', or `struct sockaddr_un *' instead of the generic
2069 `struct sockaddr *' type, does not generate a type-clash warning.
2071 * New function `error' declared in header file <error.h> is a convenient
2072 function for printing error messages and optionally exiting; this is the
2073 canonical function used in GNU programs. The new functions `err', `warn',
2074 and friends in header file <err.h> are the canonical 4.4 BSD interface for
2075 doing the same thing.
2077 * The <glob.h> interface has several new flags from 4.4 BSD that extend the
2078 POSIX.2 `glob' function to do ~ and {...} expansion.
2080 * New function `unsetenv' complements `setenv' for compatibility with 4.4 BSD.
2081 `clearenv' which is used in POSIX.9 is also available.
2083 * New function `getsid' returns session ID number on systems that support it.
2085 * We have incorporated the 4.4 BSD `db' library (version 1.85). New header
2086 files <db.h> and <mpool.h> provide a rich set of functions for several
2087 types of simple databases stored in memory and in files, and <ndbm.h> is
2088 an old `ndbm'-compatible interface using the `db' functions. Link with
2089 `-ldb' to get these functions.
2091 * New macro `strdupa' copies a string like `strdup', but uses local stack
2092 space from `alloca' instead of dynamic heap space from `malloc'.
2094 * New function `strnlen' is like `strlen' but searches only a given maximum
2095 number of characters for the null terminator. `stpncpy', `strndup' and
2096 `strndupa' are similar variants for the `stpcpy', `strdup' and `strdupa'
2099 * New function `statfs' in header <sys/statfs.h>.
2101 * The new <argz.h> and <envz.h> interfaces contributed by Miles Bader
2102 provide convenient functions for operating on blocks of null-terminated
2105 * A new suite of functions in <utmp.h> handle all the details of reading
2106 and writing the utmp file.
2108 * An implementation of the NIS/YP(tm) based NSS service was contributed by
2111 * Paul Eggert and Ulrich Drepper modified the `strftime' function to be
2112 completely POSIX compliant and also implemented the extended functionality
2113 to handle alternate digit representation and alternate era date formats.
2115 * Ulrich Drepper provided an implementation of the `strptime' function
2116 defined in XPG4.2 which transforms a string into a `struct tm' value.
2118 * Paul Eggert provided the tzselect shell script as part of the timezone
2119 code. The shell script makes it easy to select the correct timezone
2122 * The implementation of the malloc family of functions is completely replaced
2123 by a new implementation by Doug Lea with many improvements by Wolfram Gloger.
2124 The implementation uses the mmap function (if available) and it is
2125 optimized for the use in multi threaded programs.
2127 * Ulrich Drepper contributed a MD5 "encryption" for the crypt family of
2128 functions. This new functionality is usable by specifying a special
2129 salt string and it is compatible with implementation on *BSD systems.
2131 * Lots of functions from the XPG4.2 standard were added by Ulrich Drepper:
2132 `getsubopt' to handle second level command line options, `bsd_signal'
2133 to access BSD style `signal' functionality, the obsolete `regexp' style
2136 * the `lchown' function is available on system which support this
2139 * The implementation of the shadow password handling function was contributed
2142 * David Mosberger-Tang changed the SunRPC implementation to be 64bit safe.
2144 * POSIX.1g support was added. The <sys/select.h> header is available,
2145 `isfdtype' and `pselect' are implemented. Craig Metz contributed an
2146 implementation of `getaddrinfo'.
2150 * For cross-compilation you should now set `BUILD_CC' instead of `HOST_CC'.
2152 * New header file <fstab.h> and new functions `getfsspec', `getfsent' and
2153 friends, for parsing /etc/fstab. This code comes from 4.4 BSD.
2155 * The new function `daemon' from 4.4 BSD is useful for server programs that
2156 want to put themselves in the background.
2158 * Joel Sherrill has contributed support for several standalone boards that
2159 run without an operating system.
2161 * `printf', `scanf' and friends now accept a `q' type modifier for long
2162 long int as well as `ll'. Formats using these might be `%qu' or `%lld'.
2164 * All of the code taken from BSD (notably most of the math and networking
2165 routines) has been updated from the BSD 4.4-Lite release.
2167 * The resolver code has been updated from the BIND-4.9.3-BETA9 release.
2169 * The new functions `getdomainname' and `setdomainname' fetch or change the
2170 YP/NIS domain name. These are system calls which exist on systems which
2173 * The time zone data files have been updated for the latest international
2176 * The SunRPC programs `portmap' and `rpcinfo' are now installed in
2177 $(sbindir) (usually /usr/local/sbin) instead of $(bindir).
2181 * The C library now includes support for Sun RPC, from Sun's free
2182 RPCSRC-4.0 distribution. The `portmap', `rpcinfo', and `rpcgen' programs
2183 are included. (There is still no support for YP.)
2185 * Tom Quinn has contributed a port of the C library to SGI machines running
2186 Irix 4 (mips-sgi-irix4).
2188 * The new `lockf' function is a simplified interface to the locking
2189 facilities of `fcntl', included for compatibility.
2191 * New time functions `timegm', `timelocal', and `dysize' for compatibility.
2193 * New header file <sys/timeb.h> and new function `ftime' for compatibility.
2195 * New header files <poll.h> and <sys/poll.h> and new function `poll' for
2198 * The error message printed by `assert' for a failed assertion now includes
2199 the name of the program (if using GNU ld) and the name of the calling
2200 function (with versions of GCC that support this).
2202 * The `psignal' function is now declared in <signal.h>, not <stdio.h>.
2204 * The library now includes the <sys/mman.h> header file and memory
2205 management functions `mmap', `munmap', `mprotect', `msync', and
2206 `madvise', on systems that support those facilities.
2208 * The interface for `mcheck' has changed slightly: the function called to
2209 abort the program when an allocation inconsistency is detected now takes
2210 an argument that indicates the type of failure. The new function
2211 `mprobe' lets you request a consistency check for a particular block at
2212 any time (checks are normally done only when you call `free' or `realloc'
2215 * It is now possible to easily cross-compile the C library, building on one
2216 system a library to run on another machine and/or operating system. All
2217 you need to do is set the variable `HOST_CC' in `configparms' to the
2218 native compiler for programs to run on the machine you are building on (a
2219 few generator programs are used on Unix systems); set `CC' to the
2222 * The new function `fexecve' (only implemented on the GNU system) executes
2223 a program file given a file descriptor already open on the file.
2227 * Brendan Kehoe has contributed most of a port to the DEC Alpha
2228 running OSF/1 (alpha-dec-osf1). He says it is 75% complete.
2230 * You can set the variable `libprefix' in `configparms' to specify a prefix
2231 to be prepended to installed library files; this makes it easy to install
2232 the GNU C library to be linked as `-lgnuc' or whatever.
2234 * The new `stpncpy' is a cross between `stpcpy' and `strncpy': It
2235 copies a limited number of characters from a string, and returns the
2236 address of the last character written.
2238 * You no longer need to check for whether the installed `stddef.h' is
2239 compatible with the GNU C library. configure now checks for you.
2241 * You can now define a per-stream `fileno' function to convert the
2242 stream's cookie into an integral file descriptor.
2244 * ``malloc (0)'' no longer returns a null pointer. Instead, it
2245 allocates zero bytes of storage, and returns a unique pointer which
2246 you can pass to `realloc' or `free'. The behavior is undefined if
2247 you dereference this pointer.
2249 * The C library now runs on Sony NEWS m68k machines running either
2250 NewsOS 3 or NewsOS 4.
2252 * The new `syscall' function is a system-dependent primitive function
2253 for invoking system calls. It has the canonical behavior on Unix
2254 systems, including unreliable return values for some calls (such as
2255 `pipe', `fork' and `getppid').
2257 * The error code `EWOULDBLOCK' is now obsolete; it is always defined
2258 to `EAGAIN', which is the preferred name. On systems whose kernels
2259 use two distinct codes, the C library now translates EWOULDBLOCK to
2260 EAGAIN in every system call function.
2264 * The GNU C Library Reference Manual is now distributed with the library.
2265 `make dvi' will produce a DVI file of the printed manual.
2266 `make info' will produce Info files that you can read on line using C-h i
2267 in Emacs or the `info' program.
2268 Please send comments on the manual to bug-glibc-manual@gnu.org.
2270 * The library now supports SVR4 on i386s (i386-unknown-sysv4).
2272 * Brendan Kehoe has contributed a port to Sun SPARCs running Solaris 2.
2274 * Jason Merrill has contributed a port to the Sequent Symmetry running
2275 Dynix version 3 (i386-sequent-dynix).
2277 * The library has been ported to i386s running SCO 3.2.4 (also known as SCO
2278 ODT 2.0; i386-unknown-sco3.2.4) or SCO 3.2 (i386-unknown-sco3.2).
2280 * New function `memory_warnings' lets you arrange to get warnings when
2281 malloc is running out of memory to allocate, like Emacs gives you.
2283 * The C library now contains the relocating allocator used in Emacs 19 for
2284 its editing buffers. This allocator (ralloc) minimizes allocation
2285 overhead and fragmentation by moving allocated regions around whenever it
2286 needs to. You always refer to a ralloc'd region with a "handle" (a
2287 pointer to a pointer--an object of type `void **').
2289 * There is a new `printf' format: `%m' gives you the string corresponding
2290 to the error code in `errno'.
2292 * In `scanf' formats, you can now use `%as' or `%a[' to do the normal `%s'
2293 or `%[' conversion, but instead of filling in a fixed-sized buffer you
2294 pass, the `a' modifier says to fill in a `char **' you pass with a
2297 * The `fnmatch' function supports the new flag bits `FNM_LEADING_DIR' and
2298 `FNM_CASEFOLD'. `FNM_LEADING_DIR' lets a pattern like `foo*' match a
2299 name like `foo/bar'. `FNM_CASEFOLD' says to ignore case in matching.
2301 * `mkstemp' is a traditional Unix function to atomically create and open a
2302 uniquely-named temporary file.
2306 * The standard location for the file that says what the local timezone is
2307 has changed again. It is now `/usr/local/etc/localtime' (or more
2308 precisely, `${prefix}/etc/localtime') rather than `/etc/localtime'.
2310 * The distribution no longer contains any files with names longer than 14
2313 * `struct ttyent' has two new flag bits: TTY_TRUSTED and TTY_CONSOLE.
2314 These are set by the new `trusted' and `console' keywords in `/etc/ttys'.
2316 * New functions `ttyslot' and `syslog' from 4.4 BSD.
2320 * The configuration process has changed quite a bit. The `configure'
2321 script is now used just like the configuration scripts for other GNU
2322 packages. The `sysdeps' directory hierarchy is much rearranged.
2323 The file `INSTALL' explains the new scheme in detail.
2325 * The header files no longer need to be processed into ANSI C and
2326 traditional C versions. There is just one set of files to install, and
2327 it will work with ANSI or old C compilers (including `gcc -traditional').
2329 * Brendan Kehoe and Ian Lance Taylor have ported the library to the
2330 MIPS DECStation running Ultrix 4.
2332 * The Sun 4 startup code (crt0) can now properly load SunOS 4 shared libraries.
2333 Tom Quinn contributed the initial code. The GNU C library can NOT yet be
2334 made itself into a shared library.
2336 * Yet further improved support for the i386, running 4.3 BSD-like systems
2337 (such as Mach 3 with the Unix single-server), or System V.
2339 * New function `strncasecmp' to do case-insensitive string comparison
2340 with limited length.
2342 * New function `strsep' is a reentrant alternative to `strtok'.
2344 * New functions `scandir' and `alphasort' for searching directories.
2346 * New function `setenv' is a better interface to `putenv'.
2348 * Ian Lance Taylor has contributed an implementation of the SVID `ftw'
2349 function for traversing a directory tree.
2351 * The GNU obstack package is now also part of the C library.
2352 The new function `open_obstack_stream' creates a stdio stream that
2353 writes onto an obstack; `obstack_printf' and `obstack_vprintf' do
2354 formatted output directly to an obstack.
2356 * Miscellaneous new functions: reboot, nice, sigaltstack (4.4 BSD only),
2357 cfmakeraw, getusershell, getpass, swab, getttyent, seteuid, setegid.
2359 * `FNM_FILE_NAME' is another name for `FNM_PATHNAME', used with `fnmatch'.
2361 * The new functions `strfry' and `memfrob' do mysterious and wonderful
2362 things to your strings.
2364 * There are some new test programs: test-fseek, testmb, and testrand.
2366 * Some work has been done to begin porting the library to 4.4 BSD and Linux.
2367 These ports are not finished, but are a good starting place for really
2368 supporting those systems.
2370 * `/etc/localtime' is now the standard location for the file that says what
2371 the local timezone is, rather than `/usr/local/lib/zoneinfo/localtime'.
2372 This follows the general principle that `/etc' is the place for all local
2373 configuration files.
2375 * The C library header files now use `extern "C"' when used by the C++
2376 compiler, so the C library should now work with C++ code.
2378 * The header file <bstring.h> is gone. <string.h> now declares bcopy,
2379 bcmp, bzero, and ffs. (Update: nowadays these functions are declared
2382 * Mike Haertel (of GNU e?grep and malloc fame) has written a new sorting
2383 function which uses the `merge sort' algorithm, and is said to be
2384 significantly faster than the old GNU `qsort' function. Merge sort is
2385 now the standard `qsort' function. The new algorithm can require a lot
2386 of temporary storage; so, the old sorting function is called when the
2387 required storage is not available.
2389 * The C library now includes Michael Glad's Ultra Fast Crypt, which
2390 provides the Unix `crypt' function, plus some other entry points.
2392 * The code and header files taken from 4.4 BSD have been updated with the
2393 latest files released from Berkeley.
2395 ----------------------------------------------------------------------
2396 Copyright information:
2398 Copyright (C) 1992-2014 Free Software Foundation, Inc.
2400 Permission is granted to anyone to make or distribute verbatim copies
2401 of this document as received, in any medium, provided that the
2402 copyright notice and this permission notice are preserved,
2403 thus giving the recipient permission to redistribute in turn.
2405 Permission is granted to distribute modified versions
2406 of this document, or of portions of it,
2407 under the above conditions, provided also that they
2408 carry prominent notices stating who last changed them.
2411 version-control: never
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