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1 GNU C Library NEWS -- history of user-visible changes.
2 Copyright (C) 1992-2013 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.
7 \f
8 Version 2.19
10 * The following bugs are resolved with this release:
12 431, 13985, 14155, 14547, 14699, 15048, 15400, 15427, 15522, 15531,
13 15532, 15608, 15609, 15610, 15632, 15640, 15681, 15736, 15748, 15749,
14 15754, 15760, 15797, 15844, 15849, 15855, 15856, 15857, 15859, 15867,
15 15886, 15887, 15890, 15892, 15893, 15895, 15897, 15905, 15909, 15919,
16 15921, 15887, 15890, 15892, 15893, 15895, 15897, 15905, 15909, 15919,
17 15921, 15923, 15939, 15963, 15966, 15988.
19 * CVE-2012-4412 The strcoll implementation caches indices and rules for
20 large collation sequences to optimize multiple passes. This cache
21 computation may overflow for large collation sequences and may cause a
22 stack or buffer overflow. This is now fixed to use a slower algorithm
23 which does not use a cache if there is an integer overflow.
25 * CVE-2012-4424 The strcoll implementation uses malloc to cache indices and
26 rules for large collation sequences to optimize multiple passes and falls
27 back to alloca if malloc fails, resulting in a possible stack overflow.
28 The implementation now falls back to an uncached collation sequence lookup
29 if malloc fails.
31 * CVE-2013-4788 The pointer guard used for pointer mangling was not
32 initialized for static applications resulting in the security feature
33 being disabled. The pointer guard is now correctly initialized to a
34 random value for static applications. Existing static applications need
35 to be recompiled to take advantage of the fix (bug 15754).
37 * CVE-2013-4237 The readdir_r function could write more than NAME_MAX bytes
38 to the d_name member of struct dirent, or omit the terminating NUL
39 character. (Bugzilla #14699).
41 * CVE-2013-4332 The pvalloc, valloc, memalign, posix_memalign and
42 aligned_alloc functions could allocate too few bytes or corrupt the
43 heap when passed very large allocation size values (Bugzilla #15855,
44 #15856, #15857).
46 * New locales: ak_GH, cmn_TW, hak_TW, lzh_TW, nan_TW, quz_PE.
48 * Substantially revised locales: gd_GB, ht_HT
50 * The LC_ADDRESS field was updated to support country_car for almost all
51 supported locales.
53 * ISO 1427 definitions were updated.
55 * The localedef utility now supports --big-endian and --little-endian
56 command-line options to generate locales for a different system from that
57 for which the C library was built.
59 * The configure option --disable-versioning has been removed. Builds with
60 --disable-versioning had not worked for several years.
62 * ISO 639 definitions were updated for Chiga (cgg) and Chinese (gan, hak, czh,
63 cjy, lzh, cmn, mnp, cdo, czo, cpx, wuu, hsn, yue).
65 * SystemTap probes for malloc have been introduced.
67 \f
68 Version 2.18
70 * The following bugs are resolved with this release:
72 2546, 2560, 5159, 6809, 7006, 10060, 10062, 10283, 10357, 10686, 11120,
73 11561, 12310, 12387, 12492, 12515, 12723, 13550, 13889, 13951, 13988,
74 14142, 14176, 14200, 14256, 14280, 14293, 14317, 14327, 14478, 14496,
75 14582, 14686, 14812, 14888, 14894, 14907, 14908, 14909, 14920, 14952,
76 14964, 14981, 14982, 14985, 14991, 14994, 14996, 15000, 15003, 15006,
77 15007, 15014, 15020, 15022, 15023, 15036, 15054, 15055, 15062, 15078,
78 15084, 15085, 15086, 15100, 15160, 15214, 15221, 15232, 15234, 15283,
79 15285, 15287, 15304, 15305, 15307, 15309, 15327, 15330, 15335, 15336,
80 15337, 15339, 15342, 15346, 15359, 15361, 15366, 15380, 15381, 15394,
81 15395, 15405, 15406, 15409, 15416, 15418, 15419, 15423, 15424, 15426,
82 15429, 15431, 15432, 15441, 15442, 15448, 15465, 15480, 15485, 15488,
83 15490, 15492, 15493, 15497, 15506, 15529, 15536, 15553, 15577, 15583,
84 15618, 15627, 15631, 15654, 15655, 15666, 15667, 15674, 15711, 15755,
85 15759.
87 * CVE-2013-2207 Incorrectly granting access to another user's pseudo-terminal
88 has been fixed by disabling the use of pt_chown (Bugzilla #15755).
89 Distributions can re-enable building and using pt_chown via the new configure
90 option `--enable-pt_chown'. Enabling the use of pt_chown carries with it
91 considerable security risks and should only be used if the distribution
92 understands and accepts the risks.
94 * CVE-2013-0242 Buffer overrun in regexp matcher has been fixed (Bugzilla
95 #15078).
97 * CVE-2013-1914 Stack overflow in getaddrinfo with many results has been
98 fixed (Bugzilla #15330).
100 * Add support for calling C++11 thread_local object destructors on thread
101 and program exit. This needs compiler support for offloading C++11
102 destructor calls to glibc.
104 * Improved worst case performance of libm functions with double inputs and
105 output.
107 * Support for priority inherited mutexes in pthread condition variables on
108 non-x86 architectures.
110 * Port to Xilinx MicroBlaze contributed by David Holsgrove.
112 * Optimized string functions for AArch64. Implemented by Marcus Shawcroft.
114 * Optimized string functions for ARM. Implemented by Will Newton and
115 Richard Henderson.
117 * Optimized libm functions for SPARC. Implemented by David S. Miller.
119 * Support for building more of ARM glibc as Thumb-2 code. Implemented by
120 Richard Henderson.
122 * Support for building most of MIPS glibc as MIPS16 code. Implemented by
123 Chung-Lin Tang, Maciej W. Rozycki and Maxim Kuvyrkov.
125 * Added a benchmark framework to track performance of functions in glibc.
127 * New <math.h> macro named issignaling to check for a signaling NaN (sNaN).
128 It is based on draft TS 18661 and currently enabled as a GNU extension.
130 * On Linux, the clock function now uses the clock_gettime system call
131 for improved precision, rather than old times system call.
133 * Added new API functions pthread_getattr_default_np and
134 pthread_setattr_default_np to get and set the default pthread
135 attributes of a process.
137 * Added support for TSX lock elision for pthread mutexes on i386 and x86-64.
138 This may improve lock scaling of existing programs on TSX capable systems.
139 When the --enable-lock-elision=yes parameter is specified at configure
140 time lock elision will be enabled by default for all PTHREAD_MUTEX_DEFAULT
141 mutexes.
143 * Support added for AT_HWCAP2 (to coincide with Linux kernel 3.10
144 availability). Implemented by Ryan S. Arnold.
146 * Support added for POWER8 platform. Implemented by Ryan S. Arnold.
147 \f
148 Version 2.17
150 * The following bugs are resolved with this release:
152 1349, 3439, 3479, 3665, 5044, 5246, 5298, 5400, 6530, 6677, 6778, 6808,
153 9685, 9914, 10014, 10038, 10114, 10191, 10631, 10873, 11438, 11607, 11638,
154 11741, 12140, 13013, 13412, 13542, 13601, 13603, 13604, 13629, 13679,
155 13696, 13698, 13717, 13741, 13759, 13761, 13763, 13881, 13939, 13950,
156 13952, 13966, 14042, 14047, 14090, 14150, 14151, 14152, 14154, 14157,
157 14166, 14173, 14195, 14197, 14237, 14246, 14251, 14252, 14283, 14298,
158 14303, 14307, 14328, 14331, 14336, 14337, 14347, 14349, 14368, 14376,
159 14417, 14447, 14459, 14476, 14477, 14501, 14505, 14510, 14516, 14518,
160 14519, 14530, 14532, 14538, 14543, 14544, 14545, 14557, 14562, 14568,
161 14576, 14579, 14583, 14587, 14595, 14602, 14610, 14621, 14638, 14645,
162 14648, 14652, 14660, 14661, 14669, 14672, 14683, 14694, 14716, 14719,
163 14743, 14767, 14783, 14784, 14785, 14793, 14796, 14797, 14801, 14803,
164 14805, 14807, 14811, 14815, 14821, 14822, 14824, 14828, 14831, 14833,
165 14835, 14838, 14856, 14863, 14865, 14866, 14868, 14869, 14871, 14872,
166 14879, 14889, 14893, 14898, 14914.
168 * Optimization of memcpy for MIPS.
170 * CVE-2011-4609 svc_run() produces high cpu usage when accept fails with
171 EMFILE has been fixed (Bugzilla #14889).
173 * The add-on ports collection is now distributed in the "ports" subdirectory
174 of the main GNU C Library distribution, rather than separately.
176 * Port to ARM AArch64 contributed by Linaro.
178 * Support for STT_GNU_IFUNC symbols added for s390 and s390x.
179 Optimized versions of memcpy, memset, and memcmp added for System z10 and
180 zEnterprise z196.
181 Implemented by Andreas Krebbel.
183 * The new function secure_getenv allows secure access to the environment,
184 returning NULL if running in a SUID/SGID process. This function replaces
185 the internal function __secure_getenv.
187 * SystemTap static probes have been added into the dynamic linker.
188 Implemented by Gary Benson.
190 * Optimizations of string functions strstr, strcasestr and memmem.
191 Implemented by Maxim Kuvyrkov.
193 * The minimum Linux kernel version that this version of the GNU C Library
194 can be used with is 2.6.16.
196 * Optimizations of string functions memchr, wcschr, wcscpy, and wcsrchr for
197 powerpc POWER7. Implemented by Will Schmidt.
199 * New configure option --disable-nscd builds the C library such that it
200 never attempts to contact the Name Service Caching Daemon (nscd).
201 New configure option --disable-build-nscd avoids building nscd itself;
202 this is the default if --disable-nscd is used.
204 * Improved support for cross-compilation, including cross-testing and
205 bootstrap builds without a previously built glibc.
207 * Several testsuite tests are now able to test multiple IFUNC variants of an
208 interface, rather than just testing the one that would be chooen by
209 default.
211 * New configure options --with-bugurl and --with-pkgversion, for
212 distributors to use to embed their bug-reporting and package version
213 information in --help and --version output.
215 * The ttyname and ttyname_r functions on Linux now fall back to searching for
216 the tty file descriptor in /dev/pts or /dev if /proc is not available. This
217 allows creation of chroots without the procfs mounted on /proc.
219 * The `crypt' function now fails if passed salt bytes that violate the
220 specification for those values. On Linux, the `crypt' function will
221 consult /proc/sys/crypto/fips_enabled to determine if "FIPS mode" is
222 enabled, and fail on encrypted strings using the MD5 or DES algorithm
223 when the mode is enabled.
225 * The `clock_*' suite of functions (declared in <time.h>) is now available
226 directly in the main C library. Previously it was necessary to link with
227 -lrt to use these functions. This change has the effect that a
228 single-threaded program that uses a function such as `clock_gettime' (and
229 is not linked with -lrt) will no longer implicitly load the pthreads
230 library at runtime and so will not suffer the overheads associated with
231 multi-thread support in other code such as the C++ runtime library.
233 * New locales: ayc_PE, doi_IN, ia_FR, mni_IN, nhn_MX, niu_NU, niu_NZ,
234 sat_IN, and szl_PL.
235 \f
236 Version 2.16
238 * The following bugs are resolved with this release:
240 174, 208, 350, 369, 411, 706, 766, 887, 2074, 2541, 2547, 2548, 2550,
241 2551, 2552, 2553, 2554, 2562, 2563, 2565, 2566, 2570, 2576, 2636, 2678,
242 3335, 3440, 3748, 3768, 3866, 3868, 3906, 3976, 3992, 4026, 4108, 4596,
243 4822, 5077, 5461, 5805, 5993, 6471, 6486, 6578, 6649, 6730, 6770, 6794,
244 6884, 6890, 6894, 6895, 6907, 6911, 6959, 7064, 9739, 9902, 10110, 10135,
245 10140, 10153, 10210, 10254, 10346, 10375, 10545, 10716, 10846, 11174,
246 11261, 11322, 11365, 11451, 11494, 11521, 11677, 11837, 11959, 12047,
247 12097, 12193, 12194, 12297, 12298, 12301, 12340, 12354, 12416, 12495,
248 13058, 13223, 13361, 13525, 13526, 13527, 13528, 13529, 13530, 13531,
249 13532, 13533, 13547, 13551, 13552, 13553, 13555, 13556, 13559, 13563,
250 13566, 13576, 13579, 13583, 13592, 13594, 13613, 13618, 13637, 13656,
251 13658, 13673, 13691, 13695, 13704, 13705, 13706, 13718, 13726, 13738,
252 13739, 13743, 13750, 13758, 13760, 13761, 13775, 13786, 13787, 13792,
253 13806, 13824, 13840, 13841, 13844, 13846, 13848, 13851, 13852, 13854,
254 13871, 13872, 13873, 13879, 13882, 13883, 13884, 13885, 13886, 13892,
255 13895, 13908, 13910, 13911, 13912, 13913, 13914, 13915, 13916, 13917,
256 13918, 13919, 13920, 13921, 13922, 13923, 13924, 13926, 13927, 13928,
257 13938, 13941, 13942, 13954, 13955, 13956, 13963, 13967, 13968, 13970,
258 13973, 13979, 13983, 13986, 13996, 14012, 14027, 14033, 14034, 14036,
259 14040, 14043, 14044, 14048, 14049, 14050, 14053, 14055, 14059, 14064,
260 14075, 14080, 14083, 14103, 14104, 14109, 14112, 14117, 14122, 14123,
261 14134, 14153, 14183, 14188, 14199, 14210, 14218, 14229, 14241, 14273,
262 14277, 14278.
264 * Support for the x32 ABI on x86-64 added. The x32 target is selected by
265 configuring glibc with:
266 BUILD_CC='gcc' CC='gcc -mx32' CXX='g++ -mx32'
267 Visit <http://sites.google.com/site/x32abi/> for more x32 ABI info.
268 Implemented by H.J. Lu.
270 * ISO C11 support:
272 + define static_assert
274 + do not declare gets
276 + declare at_quick_exit and quick_exit also for ISO C11
278 + aligned_alloc. NB: The code is deliberately allows the size parameter
279 to not be a multiple of the alignment. This is a moronic requirement
280 in the standard but it is only a requirement on the caller, not the
281 implementation.
283 + timespec_get added
285 + uchar.h support added
287 + CMPLX, CMPLXF, CMPLXL added
289 Implemented by Ulrich Drepper.
291 * Support for the IA-64 has been moved to ports.
293 * Remove support for anything but ELF binary format
295 * Checking versions of poll, ppoll added.
296 Implemented by Ulrich Drepper.
298 * More generic and 64-bit performance optimizations to math functions.
299 Implemented by Ulrich Drepper.
301 * New configure option --enable-obsolete-rpc makes the deprecated RPC
302 headers and functions available at compile time as they were before
303 version 2.14. This option will be removed at some time in the future
304 after the TI-RPC library becomes fully sufficient for the needs of
305 existing applications.
307 * Compatibility code for Linux kernel versions before 2.4 has been removed.
308 Note that glibc is not expected to work with any Linux kernel version
309 before 2.6.
311 * New header <sys/auxv.h> and function getauxval allowing easy access to
312 the AT_* key-value pairs passed from the Linux kernel. The header also
313 defines the HWCAP_* bits associated with the AT_HWCAP key.
315 * New locales: mag_IN
317 * New configure option --enable-systemtap builds SystemTap static probes
318 into libc for setjmp and longjmp and into libpthread for various operations.
319 So far the setjmp/longjmp probes and some of the libpthread probes are
320 provided only for i*86 and x86_64.
321 Implemented by Roland McGrath and Rayson Ho.
323 * Optimized expf for x86-32 and x86-64. Implemented by Liubov Dmitrieva.
325 * More optimized functions for PowerPC. Implemented by Adhemerval Zanella
326 and Will Schmidt.
328 * More optimized functions for SPARC. Implemented by David S. Miller.
330 * Improved support for cross-compilation, especially bootstrap builds
331 without a previously built glibc.
333 * Ports for the TILE-Gx and TILEPro families of processors. Contributed by
334 Chris Metcalf from Tilera.
336 * Support for the old ARM ABI has been removed from ports. Only the EABI is
337 now supported for ARM processors.
339 * The hard-float variant of the ARM EABI now uses /lib/ld-linux-armhf.so.3
340 as the name of the dynamic linker, to distinguish it from the
341 /lib/ld-linux.so.3 dynamic linker used for the base EABI.
343 * Support for CRIS has been removed from ports.
345 * A new class of installed header has been documented for low-level
346 platform-specific functionality. PowerPC added the first instance with a
347 function to provide time base register access. Contributed by Tulio
348 Magno Quites Machado Filho.
350 * ix86 configurations now install header files that are consistent with
351 what x86-64 configurations install. These same header files can be used
352 for -m32, -m64, or -mx32 builds.
353 Contributed by H.J. Lu.
355 * Math library bug fixes. A thorough audit of all open math library bugs was
356 conducted by Joseph Myers. Significant progress was made on many math
357 library bugs resulting in more accurate exceptions and function results.
358 Many thanks to all those that contributed including Andreas Jaeger for his
359 patch review and work on the x87 trigonometric instruction issues.
361 * Timezone data is no longer installed. Timezone-related binaries and scripts
362 will continue to be installed. Users should obtain their timezone data from
363 their distribution provider or from the tzdata package at
364 <ftp://munnari.oz.au/pub/>.
365 \f
366 Version 2.15
368 * The following bugs are resolved with this release:
370 6779, 6783, 9696, 10103, 10709, 11589, 11929, 12403, 12786, 12840, 12847,
371 12868, 12852, 12874, 12885, 12892, 12906, 12907, 12922, 12935, 12962,
372 13007, 13021, 13061, 13062, 13067, 13068, 13085, 13088, 13090, 13092,
373 13096, 13114, 13118, 13123, 13134, 13138, 13147, 13150, 13166, 13179,
374 13185, 13189, 13192, 13268, 13276, 13282, 13291, 13305, 13328, 13335,
375 13337, 13344, 13358, 13367, 13413, 13416, 13423, 13439, 13446, 13472,
376 13484, 13506, 13515, 13523, 13524, 13538, 13540
378 * New program pldd to list loaded object of a process
379 Implemented by Ulrich Drepper.
381 * Add nss_db support back to glibc. No more dependency on Berkeley db
382 and support for initgroups lookups.
383 Implemented by Ulrich Drepper.
385 * Optimized strcpy, strncpy, stpcpy, stpncpy for SSE2 and SSSE3 on x86-32.
386 Contributed by HJ Lu.
388 * Improved strcpy, strncpy, stpcpy, stpncpy for SSE2 and SSSE3 on x86-64.
389 Contributed by HJ Lu.
391 * Optimized strcat, strncat on x86-64 and optimized wcscmp, wcslen, strnlen
392 on x86-32 and x86-64.
393 Contributed by Liubov Dmitrieva.
395 * Optimized strchr and strrchr for SSE on x86-32.
396 Contributed by Liubov Dmitrieva.
398 * Optimized memchr, memrchr, rawmemchr, memcmp, wmemcmp, wcschr, wcscpy
399 for x86-64 and x86-32.
400 Contributed by Liubov Dmitrieva.
402 * New interfaces: scandirat, scandirat64
403 Implemented by Ulrich Drepper.
405 * Checking versions of FD_SET, FD_CLR, and FD_ISSET added.
406 Implemented by Ulrich Drepper.
408 * nscd now also caches the netgroup database.
409 Implemented by Ulrich Drepper.
411 * Integrate libm with gcc's -ffinite-math-only option.
412 Implemented by Ulrich Drepper.
414 * Lots of generic, 64-bit, and x86-64-specific performance optimizations
415 to math functions. Implemented by Ulrich Drepper.
417 * Optimized strcasecmp and strncasecmp for AVX on x86-64.
418 Implemented by Ulrich Drepper.
420 * New Linux interfaces: process_vm_readv, process_vm_writev
422 * Optimized strcasecmp and strncasecmp for SSSE3 and SSE4.2 on x86-32.
423 Implemented by Ulrich Drepper.
425 * Optimized nearbyint and strcasecmp for PPC.
426 Implemented by Adhemerval Zanella.
428 * New locales: bho_IN, unm_US, es_CU, ta_LK
429 \f
430 Version 2.14
432 * The following bugs are resolved with this release:
434 386, 6420, 7101, 9730, 9732, 9809, 10138, 10149, 10157, 11099, 11257,
435 11258, 11487, 11532, 11558, 11578, 11634, 11653, 11668, 11697, 11724,
436 11781, 11799, 11820, 11837, 11857, 11869, 11892, 11895, 11901, 11945,
437 11947, 11952, 11987, 12052, 12083, 12158, 12178, 12200, 12346, 12350,
438 12393, 12420, 12432, 12445, 12449, 12453, 12454, 12460, 12469, 12489,
439 12509, 12510, 12511, 12518, 12527, 12541, 12545, 12551, 12582, 12583,
440 12587, 12597, 12601, 12611, 12625, 12626, 12631, 12650, 12653, 12655,
441 12660, 12671, 12681, 12684, 12685, 12711, 12713, 12714, 12717, 12723,
442 12724, 12734, 12738, 12746, 12766, 12775, 12777, 12782, 12788, 12792,
443 12795, 12811, 12813, 12814, 12841
445 * The RPC implementation in libc is obsoleted. Old programs keep working
446 but new programs cannot be linked with the routines in libc anymore.
447 Programs in need of RPC functionality must be linked against TI-RPC.
448 The TI-RPC implementation is IPv6 enabled and there are other benefits.
450 Visible changes of this change include (obviously) the inability to link
451 programs using RPC functions without referencing the TI-RPC library and the
452 removal of the RPC headers from the glibc headers.
453 Implemented by Ulrich Drepper.
455 * New Linux interfaces: clock_adjtime, name_to_handle_at, open_by_handle_at,
456 syncfs, setns, sendmmsg
458 * New locales: os_RU, bem_ZA, en_ZA, ff_SN, sw_KE, sw_TZ, lb_LU, wae_CH,
459 yue_HK, lij_IT, mhr_RU
461 * New encodings: CP770, CP771, CP772, CP773, CP774
463 * New program sotruss to trace calls through PLTs
464 Implemented by Ulrich Drepper.
466 * The malloc hook implementation is marked deprecated and will be removed
467 from the default implementation in the next version. The design never
468 worked ever since the introduction of threads. Even programs which do
469 not create threads themselves can use multiple threads created internally.
470 \f
471 Version 2.13
473 * The following bugs are resolved with this release:
475 3268, 6812, 7066, 10085, 10484, 10563, 10851, 11149, 11155, 11577, 11611,
476 11640, 11655, 11701, 11840, 11856, 11883, 11903, 11904, 11968, 11979,
477 12005, 12037, 12067, 12077, 12078, 12092, 12093, 12107, 12108, 12113,
478 12140, 12159, 12167, 12191, 12194, 12201, 12204, 12205, 12207, 12348,
479 12378, 12394, 12397
481 * New Linux interfaces: prlimit, prlimit64, fanotify_init, fanotify_mark
483 * POWER7 optimizations: memset, memcmp, strncmp
485 * New optimized string functions for x86-64: strnlen (SSE2),
486 strcasecmp (SSE2, SSSE3, SSE4.2), strncasecmp (SSE2, SSSE3, SSE4.2)
487 Implemented by Ulrich Drepper.
488 \f
489 Version 2.12
491 * The following bugs are resolved with this release:
493 3662, 4457, 5553, 10162, 10401, 10414, 10554, 10824, 10864, 10915,
494 10918, 10936, 10939, 10958, 10968, 10969, 10972, 10992, 11000, 11001,
495 11007, 11010, 11027, 11039, 11040, 11041, 11043, 11046, 11056, 11070,
496 11093, 11115, 11125, 11126, 11127, 11134, 11141, 11149, 11183, 11184,
497 11185, 11186, 11187, 11188, 11189, 11190, 11191, 11192, 11193, 11194,
498 11200, 11230, 11235, 11242, 11254, 11258, 11271, 11272, 11276, 11279,
499 11287, 11292, 11319, 11332, 11333, 11387, 11389, 11390, 11394, 11397,
500 11410, 11438, 11449, 11470, 11471, 11520, 11537, 11538, 11571
502 * New interfaces: pthread_getname_np, pthread_setname_np
504 * New Linux interface: recvmmsg
506 * STT_GNU_IFUNC implemented for Sparc by David Miller.
508 * The dynamic linker now recognizes supported ABI versions from the
509 EI_ABIVERSION field in the ELF header.
510 Implemented by Ulrich Drepper.
512 * New NIS mode selector ADJUNCT_AS_SHADOW. The passwd.adjunct.byname table
513 will not be used to fill in password fields in the passwd.byname replies.
514 Instead it is used to synthesize the shadow.byname table, should it be
515 missing. This is a useful mode in some installations involving Solaris.
516 Implemented by Ulrich Drepper.
518 * New locales: kok_IN, sq_MK, cv_RU
519 \f
520 Version 2.11
522 * The following bugs are resolved with this release:
524 3270, 7094, 9924, 9986, 10011, 10085, 10107, 10159, 10162, 10166, 10183,
525 10195, 10196, 10200, 10203, 10207, 10211, 10213, 10217, 10221, 10229,
526 10262, 10286, 10312, 10315, 10319, 10349, 10360, 10391, 10402, 10416,
527 10418, 10422, 10425, 10446, 10448, 10452, 10540, 10553, 10560, 10564,
528 10609, 10643, 10692, 10713, 10717, 10730, 10731, 10742, 10780, 10784,
529 10789, 10817, 10823, 10840, 10847
531 * New interfaces: execvpe, pthread_sigqueue, mkstemps, mkstemps64, mkostemps,
532 mkostemps64
533 Implemented by Ulrich Drepper.
535 * Checking version of longjmp added that fails if an uninitialized stack
536 frame would be created. Implemented by Ulrich Drepper.
538 * STT_GNU_IFUNC is now supported in static executables.
539 Implemented by H.J. Lu.
541 * STT_GNU_IFUNC implemented for PPC by Alan Modra.
543 * New optimized string functions for x86-64: strstr, strcasestr, memcmp,
544 strcspn, strpbrk, strspn, strcpy, stpcpy, strncpy, strcmp (SSE2, SSE4.2),
545 strncmp (SSE2, SSE4.2), strchr (SSE4.2), strrchr (SSE4.2).
546 Contributed by H.J. Lu.
548 strlen, rawmemchr, strcmp (SSSE3), strncmp (SSSE3).
549 Implemented by Ulrich Drepper.
551 * New optimized string functions for x86: strlen, strcspn, strspn, strpbrk,
552 strstr, strcasestr.
553 Contributed by H.J. Lu.
555 * Support for fma instruction in AVX on x86-64.
556 Implemented by H.J. Lu and Ulrich Drepper.
558 * AVX support in x86-64 auditing support in ld.so.
559 Implemented by H.J. Lu.
561 * STB_GNU_UNIQUE support added.
562 Implemented by Ulrich Drepper.
564 * Implement second fallback mode for optimized DNS lookup for even more
565 broken environments. If two requests from the same port are not
566 handled correctly close the socket and open a new one before sending
567 the second request. The 'single-request-reopen' option in /etc/resolv.conf
568 can be used to select this mode right away, instead of rediscovering the
569 necessity is every process again.
570 Implemented by Ulrich Drepper.
572 * New resolver flag RES_USE_DNSSEC to enable use of verified lookup.
573 Implemented by Adam Tkac.
575 * Optimized iconv conversions for S390x.
576 Implemented by Andreas Krebbel.
578 * Using condvars with PI mutexes is now more efficient due to kernel
579 support for requeueing to PI futexes. NPTL support added for x86-64.
580 Implemented by Ulrich Drepper.
582 * New locales: ps_AF, my_MM
583 \f
584 Version 2.10
586 * The following bugs are resolved with this release:
588 697, 5381, 5807, 6411, 6545, 7040, 7058, 7067, 7080, 7083, 7095, 7098,
589 9677, 9694, 9697, 9701, 9704, 9705, 9706, 9720, 9726, 9730, 9733, 9736,
590 9741, 9750, 9753, 9759, 9781, 9791, 9793, 9823, 9833, 9844, 9880, 9881,
591 9891, 9893, 9895, 9913, 9916, 9920, 9948, 9955, 9957, 9963, 9985, 10052,
592 10069, 10086, 10087, 10090, 10092, 10093, 10100, 10118, 10128
594 * New interfaces: preadv, preadv64, pwritev, pwritev64, malloc_info
595 Implemented by Ulrich Drepper.
597 * New Linux interfaces: accept4, fallocate, fallocate64.
598 Implemented by Ulrich Drepper.
600 * Correct declarations of string function when used in C++ code. This
601 could lead to compile errors for invalid C++ code.
603 * XPG7/POSIX 2008 compilation environment. Many GNU-specific functions are
604 now in POSIX.
606 * New POSIX 2008 interface: psiginfo
607 Implemented by Ulrich Drepper.
609 * New ISO C++1x interfaces: quick_exit, at_quick_exit
610 Implemented by Ulrich Drepper.
612 * Support for selecting between multiple function definitions at runtime
613 using STT_GNU_IFUNC symbols. Implemented by Ulrich Drepper.
615 * The libcrypt library can now use the hash function implementations in
616 NSS. Implemented by Ulrich Drepper.
618 * The malloc implementation can be compiled to be less memory efficient
619 but higher performing in multi-threaded programs.
620 Implemented by Ulrich Drepper.
622 * New locales: nan_TW@latin, ks_IN
624 * Faster strlen, strchr, strchrnul, strrchr, memchr, and rawmemchr for x86-64.
625 Implemented by Ulrich Drepper.
627 * Extended printf hook support. It is possible to use user-defined types
628 and extend existing format specifiers.
629 Implemented by Ulrich Drepper.
631 * Handling for group shadow files has been added.
632 Implemented by Ulrich Drepper.
634 * DNS IPv4-IPv6 parallel lookup now deals better with broken DNS
635 servers (the case, e.g., for some people using the built-in DNS
636 server in ADSL modems/routers). There is a once-per-process timeout
637 in case of a broken server. To avoid it, users can run nscd or put
638 'options single-request' in /etc/resolv.conf.
639 Implemented by Ulrich Drepper.
640 \f
641 Version 2.9
643 * The following bugs are resolved with this release:
645 3406, 5209, 5210, 5381, 5794, 5814, 5911, 6428, 6438, 6442, 6447, 6461,
646 6472, 6505, 6544, 6589, 6612, 6634, 6653, 6654, 6657, 6698, 6712, 6713,
647 6719, 6723, 6724, 6740, 6763, 6771, 6790, 6791, 6817, 6824, 6839, 6843,
648 6845, 6856, 6857, 6860, 6867, 6875, 6919, 6920, 6942, 6947, 6955, 6966,
649 6968, 6974, 6980, 6995, 7008, 7009, 7029
651 * Unified lookup for getaddrinfo: IPv4 and IPv6 addresses are now looked
652 up at the same time. Implemented by Ulrich Drepper.
654 * TLS descriptors for LD and GD on x86 and x86-64.
655 Implemented by Alexandre Oliva.
657 * getaddrinfo now handles DCCP and UDPlite.
658 Implemented by Ulrich Drepper.
660 * New fixed-size conversion macros: htobe16, htole16, be16toh, le16toh,
661 htobe32, htole32, be32toh, le32toh, htobe64, htole64, be64toh, le64toh.
662 Implemented by Ulrich Drepper.
664 * New implementation of memmem, strstr, and strcasestr which is O(n).
665 Implemented by Eric Blake.
667 * New Linux interfaces: inotify_init1, dup3, epoll_create1, pipe2
669 * Implement "e" option for popen to open file descriptor with the
670 close-on-exec flag set. Implemented by Ulrich Drepper.
672 * Implement "b" mode for fmemopen. In this mode writes writes don't
673 implicitly add a NUL byte and seeks from the end of the buffer really
674 use the buffer end, not the string length as the basis.
675 Implemented by Ulrich Drepper.
677 * Many functions, exported and internal, now atomically set the close-on-exec
678 flag when run on a sufficiently new kernel. Implemented by Ulrich Drepper.
680 * Sorting rules for some Indian languages (Kannada, Gurumukhi, Telugu,
681 Sinhala)
682 Implemented by Pravin Satpute.
684 * New locales: sd_IN, sd_IN@devanagari, ks_IN@devanagari, ht_HT, en_AG, nl_AW.
685 \f
686 Version 2.8
688 * The following bugs are resolved with this release:
690 2549, 3112, 4314, 4407, 4997, 5012, 5040, 5112, 5204, 5208, 5209, 5220,
691 5222, 5224, 5225, 5237, 5238, 5240, 5245, 5277, 5346, 5375, 5378, 5382,
692 5424, 5427, 5428, 5435, 5436, 5439, 5441, 5442, 5443, 5451, 5452, 5454,
693 5455, 5463, 5464, 5465, 5475, 5477, 5478, 5520, 5541, 5545, 5553, 5600,
694 5602, 5607, 5614, 5627, 5628, 5736, 5737, 5741, 5753, 5760, 5762, 5768,
695 5774, 5777, 5778, 5779, 5786, 5790, 5818, 5854, 5857, 5903, 5939, 5979,
696 5983, 5995, 5998, 6004, 6007, 6020, 6021, 6024, 6040, 6042
698 * New locales: bo_CN, bo_IN, shs_CA.
700 * New encoding: HP-ROMAN9, HP-GREEK8, HP-THAI8, HP-TURKISH8.
702 * Sorting rules for some Indian languages (Devanagari and Gujarati).
703 Implemented by Pravin Satpute.
705 * IPV6 addresses in /etc/resolv.conf can now have a scope ID
707 * nscd caches now all timeouts for DNS entries
708 Implemented by Ulrich Drepper.
710 * nscd is more efficient and wakes up less often.
711 Implemented by Ulrich Drepper.
713 * More checking functions: asprintf, dprintf, obstack_printf, vasprintf,
714 vdprintf, and obstack_vprintf.
715 Implemented by Jakub Jelinek.
717 * Faster memset for x86-64.
718 Implemented by Harsha Jagasia and H.J. Lu.
720 * Faster memcpy on x86.
721 Implemented by Ulrich Drepper.
723 * ARG_MAX is not anymore constant on Linux. Use sysconf(_SC_ARG_MAX).
724 Implemented by Ulrich Drepper.
726 * Faster sqrt and sqrtf implemention for some PPC variants.
727 Implemented by Steven Munroe.
728 \f
729 Version 2.7
731 * The following bugs are resolved with this release:
733 4125, 4126, 4178, 4359, 4407, 4512, 4514, 4525, 4554, 4556, 4557, 4566,
734 4582, 4586, 4588, 4599, 4610, 4647, 4702, 4705, 4726, 4745, 4772, 4773,
735 4775, 4776, 4792, 4813, 4814, 4816, 4833, 4858, 4860, 4896, 4905, 4925,
736 4936, 4937, 4938, 4941, 4946, 4963, 4972, 5010, 5028, 5043, 5058, 5063,
737 5071, 5103, 5104, 5112, 5113, 5184, 5186
739 * More checking functions: fread, fread_unlocked, open*, mq_open.
740 Implemented by Jakub Jelinek and Ulrich Drepper.
742 * Extend fortification to C++. Implemented by Jakub Jelinek.
744 * Implement 'm' modifier for scanf. Add stricter C99/SUS compliance
745 by not recognizing 'a' as a modifier when those specs are requested.
746 Implemented by Jakub Jelinek.
748 * PPC optimizations to math and string functions.
749 Implemented by Steven Munroe.
751 * New interfaces: mkostemp, mkostemp64. Like mkstemp* but allow additional
752 options to be passed. Implemented by Ulrich Drepper.
754 * More CPU set manipulation functions. Implemented by Ulrich Drepper.
756 * New Linux interfaces: signalfd, eventfd, eventfd_read, and eventfd_write.
757 Implemented by Ulrich Drepper.
759 * Handle private futexes in the NPTL implementation.
760 Implemented by Jakub Jelinek and Ulrich Drepper.
762 * Add support for O_CLOEXEC. Implement in Hurd. Use throughout libc.
763 Implemented by Roland McGrath and Ulrich Drepper.
765 * Linux/x86-64 vDSO support. Implemented by Ulrich Drepper.
767 * SHA-256 and SHA-512 based password encryption.
768 Implemented by Ulrich Drepper.
770 * New locales: ber_DZ, ber_MA, en_NG, fil_PH, fur_IT, fy_DE, ha_NG, ig_NG,
771 ik_CA, iu_CA, li_BE, li_NL, nds_DE, nds_NL, pap_AN, sc_IT, tk_TM, ug_CN,
772 yo_NG.
774 + New iconv modules: MAC-CENTRALEUROPE, ISO-8859-9E, KOI8-RU.
775 Implemented by Ulrich Drepper.
776 \f
777 Version 2.6
779 * The following bugs are resolved with this release:
781 3156, 3213, 3285, 3291, 3306, 3313, 3320, 3322, 3325, 3326, 3334, 3348,
782 3352, 3363, 3369, 3426, 3427, 3429, 3451, 3458, 3465, 3480, 3483, 3493,
783 3514, 3515, 3559, 3632, 3664, 3673, 3674, 3745, 3747, 3818, 3840, 3842,
784 3851, 3855, 3884, 3885, 3902, 3905, 3919, 3944, 3954, 3955, 3957, 3991,
785 3995, 3996, 4024, 4040, 4069, 4070, 4074, 4076, 4096, 4101, 4102, 4114,
786 4130, 4131, 4181, 4276, 4306, 4342, 4344, 4349, 4364, 4368, 4381, 4392,
787 4403, 4405, 4406, 4411, 4438, 4439, 4455, 4456, 4465, 4512, 4514, 4586,
788 4702, 4858
790 * New Linux interfaces: epoll_pwait, sched_getcpu.
792 * New generic interfaces: strerror_l.
794 * nscd can now cache the services database. Implemented by Ulrich Drepper.
795 \f
796 Version 2.5
798 * The following bugs are resolved with this release:
800 39, 68, 192, 352, 388, 531, 935, 1006, 1201, 1203, 1386, 1782, 1783, 1784,
801 1785, 1786, 1787, 1951, 1974, 1996, 2072, 2098, 2125, 2134, 2158, 2182,
802 2349, 2376, 2386, 2389, 2415, 2418, 2420, 2423, 2450, 2451, 2466, 2472,
803 2473, 2477, 2498, 2499, 2501, 2502, 2505, 2507, 2508, 2509, 2517, 2526,
804 2569, 2571, 2592, 2611, 2625, 2632, 2644, 2662, 2680, 2683, 2684, 2693,
805 2695, 2703, 2734, 2751, 2764, 2766, 2775, 2792, 2821, 2823, 2832, 2841,
806 2843, 2883, 2892, 2908, 2914, 2926, 2961, 2978, 2980, 2987, 2997, 2998,
807 3013, 3018, 3034, 3040, 3044, 3123, 3124, 3137, 3138, 3143, 3155, 3189,
808 3225, 3251, 3252, 3253, 3273
810 * For Linux, the sorting of addresses returned by getaddrinfo now also
811 handles rules 3, 4, and 7 from RFC 3484. I.e., all rules are handled.
812 Implemented by Ulrich Drepper.
814 * Allow system admin to configure getaddrinfo with the /etc/gai.conf file.
815 Implemented by Ulrich Drepper.
817 * New Linux interfaces: splice, tee, sync_file_range, vmsplice.
819 * New iconv module for MIK. Contributed by Alexander Shopov.
821 * For sites with broken group and/or passwd database, the auto-propagate
822 option of nscd can prevent creating ID lookup entries from the results
823 of a name lookup and vice versa. This usually is no problem but some
824 site might have problems with the default behavior.
825 Implemented by Ulrich Drepper.
827 * Iterating over entire database in NIS can be slow. With the
828 SETENT_BATCH_READ option in /etc/default/nss a system admin can decide
829 to trade time for memory. The entire database will be read at once.
830 Implemented by Ulrich Drepper.
832 * The interfaces introduced in RFC 3542 have been implemented by
833 Ulrich Drepper.
835 * Support for the new ELF hash table format was added by Ulrich Drepper.
837 * Support for priority inheritance mutexes added by Jakub Jelinek and
838 Ulrich Drepper.
840 * Support for priority protected mutexes added by Jakub Jelinek.
842 * New locales: nr_ZA, pa_PK, ca_AD, ca_FR, ca_IT, el_CY, tr_CY, as_IN,
843 or_IN, csb_PL, fy_NL, sr_ME.
844 \f
845 Version 2.4
847 * More overflow detection functions.
849 * New iconv converters for IBM1025, IBM1122, IBM1137, IBM1153,
850 IBM1154, IBM1155, IBM1156, IBM1157, and IBM1158 contributed by Jiro Sekiba.
852 More converters for IBM803, IBM901, IBM902, IBM921, IBM1008, IBM1097,
853 IBM1112, IBM1123, IBM1130, IBM1140, IBM1141, IBM1142, IBM1143, IBM1144,
854 IBM1145, IBM1146, IBM1147, IBM1148, IBM1149, IBM1166, IBM1167, IBM4517,
855 IBM4899, IBM4909, IBM4971, IBM5347, IBM9030, IBM9066, IBM9448, IBM12712,
856 IBM16804, IBM1364, IBM1371, IBM1388, IBM1390, and IBM1399 contributed
857 by Masahide Washizawa.
859 * It is now possible to install audit libraries for the dynamic linker using
860 LD_AUDIT. Implemented by Ulrich Drepper.
862 * The LinuxThreads add-on, providing pthreads on Linux 2.4 kernels, is no
863 longer supported. The new NPTL implementation requires Linux 2.6 kernels.
864 For a libc and libpthread that works well on Linux 2.4 kernels, we
865 recommend using the stable 2.3 branch.
867 * The new function open_wmemstream acts like open_memstream,
868 but uses a wchar_t wide character buffer.
870 * The new function ppoll is an improved version of poll, similar to pselect.
872 * New interfaces: fdopendir, openat, fstatat, fchmodat, fchownat,
873 futimesat, faccessat, mkdirat, mkfifoat, mknodat,
874 renameat, unlinkat, linkat, symlinkat, readlinkat.
876 * New Linux kernel system calls: unshare,
877 inotify_init, inotify_add_watch, inotify_rm_watch.
879 * The euidaccess function is now also known by the alias eaccess,
880 for compatibility with some other systems.
882 * Timezone data updated to 2006b version.
883 \f
884 Version 2.3.6
886 * The following bugs are resolved with this release:
888 38, 253, 549, 622, 653, 721, 758, 851, 877, 915, 934, 955, 961,
889 1016, 1037, 1076, 1079, 1080, 1081, 1082, 1083, 1084, 1085, 1086,
890 1087, 1088, 1090, 1091, 1092, 1093, 1094, 1095, 1096, 1097, 1098,
891 1099, 1100, 1101, 1102, 1103, 1104, 1105, 1106, 1107, 1108, 1109,
892 1110, 1111, 1112, 1113, 1125, 1137, 1138, 1249, 1250, 1251, 1252,
893 1253, 1254, 1350, 1358, 1394, 1438, 1498, 1534
895 Visit <http://sources.redhat.com/bugzilla/> for the details of each bug.
897 * As of this release, GCC 4 can be used to compile the C Library.
899 * Timezone data updated to 2005m version.
900 \f
901 Version 2.3.5
903 * The following bugs are resolved with this release:
905 284, 592, 602, 626, 633, 640, 650, 661, 671, 681, 693, 700, 710, 719,
906 722, 723, 725, 726, 727, 728, 729, 730, 731, 732, 733, 734, 735, 736,
907 737, 738, 739, 740, 741, 742, 743, 744, 745, 765, 767, 768, 769, 776,
908 777, 787, 821, 822, 823, 825
910 Visit <http://sources.redhat.com/bugzilla/> for the details of each bug.
911 \f
912 Version 2.3.4
914 * Support for RFC 3678. Real implementations exist only for Linux so far.
915 Implemented by Ulrich Drepper.
917 * nscd can now cache entries persistently. Expiring entries are reloaded.
918 For speedups the cache can be shared in memory with client processes.
919 Implemented by Ulrich Drepper.
921 * nscd can now perform SELinux checks.
922 Implemented by Matthew Rickard <mjricka@epoch.ncsc.mil>.
924 * getaddrinfo queries are now cached. Canonical name lookup is performed
925 efficiently.
926 Implemented by Ulrich Drepper.
928 * The nothrow function attribute is used when headers are used by gcc when
929 compiling C code. This can avoid significant amounts of exception
930 handling data.
932 * The malloc functions perform more error checking and are stricter when
933 it comes to reacting on errors. The default action is to terminate
934 the process after showing an error message. Implemented by Ulrich Drepper.
936 * Reverse lookups of IPv6 addresses does not use bit string or .ip6.int
937 lookups anymore unless explicitly requested. Implemented by Ulrich Drepper.
939 * Namespaces in ld.so are implemented. DSOs can be loaded in separate
940 namespaces using the new function dlmopen(). This feature is of course,
941 like most other dynamic loading functionality, not available in statically
942 linked applications. Implemented by Ulrich Drepper.
944 * Low-overhead boundary checking variants of string and some stdio functions
945 were added. These are to be used in conjunction with a gcc patch by
946 Jakub Jelinek which adds calls to these functions if possible.
947 Implemented by Jakub Jelinek and Ulrich Drepper.
949 * Old code for several operating systems and machine architectures that
950 have not been in working condition in a long time have been removed from
951 the main source tree maintained by the GNU C Library's maintainers.
952 These files are now reside in the separate `ports' source module
953 that is usable as an add-on when building the library.
954 \f
955 Version 2.3.3
957 * New functions `dladdr1' and `dlinfo' in <dlfcn.h> provide more ways to
958 interrogate the dynamic linker, compatible with the Solaris interface.
960 * ELF thread-local storage support (TLS) now works on PowerPC and PowerPC64;
961 implemented by Paul Mackerras, Steven Munroe, and Roland McGrath.
963 * getifaddrs now uses the netlink interface on Linux to get its information.
964 Implemented by Thorsten Kukuk.
966 * getaddrinfo now implements AI_V4MAPPED, AI_ALL, and AI_ADDRCONF.
967 Implemented by Ulrich Drepper.
969 * support for non-executable stacks on x86 has been added. Changes mostly
970 by Roland McGrath.
972 * regex is now much faster for multibyte locales. Changes by Jakub Jelinek
973 and Ulrich Drepper.
975 * getaddrinfo now performs destination address selection according to
976 RFC 3484.
977 \f
978 Version 2.3.2
980 * Thread-safe interfaces for many functions that access locale data
981 were added in version 2.3, but these features were omitted from NEWS.
982 Many functions have variants with an `_l' suffix that take a `locale_t'
983 object as a parameter rather than consulting the current locale.
984 The new functions `newlocale', `duplocale', and `freelocale' in <locale.h>
985 create and maintain `locale_t' objects. Additionally, the new function
986 `uselocale' sets "the current locale" (as used by functions not so
987 parameterized) set for an individual thread. These features were added
988 in version 2.3, implemented by Ulrich Drepper and Roland McGrath.
990 * The functions getresuid, getresgid, setresuid, and setresgid, which
991 have long been available on Linux, are now declared in <unistd.h>
992 and are now also available on the Hurd.
994 * ELF thread-local storage support (TLS) now works on x86-64.
996 * The new dynamic string token $LIB is expanded in shared library names.
997 This normally expands to lib, but on some 64-bit platforms to lib64 instead.
999 * Aldy Hernandez contributed complete software floating point support for
1000 PowerPC machines with no FPU.
1002 * fexecve is implemented on Linux.
1004 * The `btowc' function should work at least twice as fast due to
1005 specialized callbacks in the iconv modules. Implemented by Bruno Haible.
1007 * With approriate thread add-ons cancelable functions are now implemented
1008 in libc.so as well. No need to call the function in libpthread. This
1009 change allowed to finally disable the incorrect and expensive handling
1010 of weak definition in ld.so.
1012 * Yet more PLT entries in libc.so have been removed. We finally arrived
1013 at the bare minimum. Startup times improved appropriately.
1015 * Support for the new Linux/x86 system call interface was added. The
1016 AT_SYSINFO auxiliary vector entry is recognized and handled.
1017 \f
1018 Version 2.3
1020 * Masahide Washizawa contributed iconv modules for IBM1163 and IBM1164
1021 charsets.
1023 * iconv (the program and the interface) now accepts empty names (excluding
1024 options like //TRANSLIT) to mean "use charset of current locale".
1026 * localedef can now transliterate characters in strings which are not in
1027 the provided charmap. The information from the input locale is used.
1029 * Prelinking support was added for ELF targets. This requires additional
1030 tools and recent versions of the GNU binutils. Contributed by Jakub Jelinek.
1032 * Read-only stdio streams now use mmap to speed up operation by eliminating
1033 copying and buffer underflows. To use add 'm' to the mode string of
1034 the fopen/fdopen/freopen call. Implemented by Ulrich Drepper.
1036 * The malloc functions were completely rewritten by Wolfram Gloger based
1037 on Doug Lea's malloc-2.7.0.c.
1039 * Isamu Hasegawa contributed a completely new and POSIX-conformant
1040 implementation of regex.
1042 * Bruno Haible upgraded the iconv and locale implementation to support
1043 Unicode 3.2.
1045 * Contents of the LC_* and LANG environment variables in the CEN style are
1046 not recognized anymore. It never was used. Change by Ulrich Drepper.
1048 * The runtime (ld.so, libc, libpthread for Linux) now can handle the ELF
1049 thread-local storage (TLS) ABI on some platforms.
1050 Changes by Ulrich Drepper. SH support by Kaz Kojima.
1052 * Bruno Haible contributed iconv converters for ISO-2022-JP-3, SHIFT JIS-X0213,
1053 EUC-JISX0213, and TSCII.
1055 * New header <ifaddrs.h> with functions `getifaddrs' and `freeifaddrs':
1056 BSD-compatible interface for getting all network interface addresses.
1057 Implementation for IPv4 by Roland McGrath.
1059 * Loading of locale data is faster due to the introduction of a locale
1060 archive. Implemented by Roland McGrath and Ulrich Drepper.
1062 * Startup times are significantly reduced by not using exported functions
1063 inside the library itself. Changes by Jakub Jelinek, Roland McGrath,
1064 and Ulrich Drepper.
1066 * Steven Munroe contributed a port to PowerPC64/Linux.
1067 \f
1068 Version 2.2.6
1070 * The Hurd now uses the GNU libio implementation of stdio rather than the
1071 old GNU stdio implementation, and uses a new ABI (libc.so.0.3).
1073 * The Hurd on x86 now has the `ioperm' function and <sys/io.h> header file
1074 with the same behavior as the Linux system call of the same name.
1075 \f
1076 Version 2.2.5
1078 * Stephen Moshier implemented log2, log10, powl and cbrtl for the
1079 128-bit long double format.
1081 * Masahide Washizawa contributed iconv modules for IBM1132, IBM1133, IBM1160,
1082 IBM1161, and IBM1162 charsets.
1084 * Andreas Jaeger contributed a port to x86-64/Linux.
1086 * Peter Bruin contributed a port to PowerPC/Hurd.
1088 * libc functions using I/O streams now can handle wide-oriented streams
1089 as well.
1091 * optimizations in the dynamic linker. Binaries created by recent binutils
1092 versions start up quicker due to reduced time spent on relocations.
1094 * Support for use of gcc3 added by Jakub Jelinek and HJ Lu.
1095 \f
1096 Version 2.2.4
1098 * Stephen Moshier implemented cosh, expm1, log1p, acos, sinh, tanh,
1099 asinh, atanh, j0 for the 128-bit long double format.
1101 * Bruno Haible updated all the code handling Unicode in some form to
1102 support Unicode 3.1.
1104 * Speed of regex for single-byte locales is back to previous levels.
1105 Patch by Isamu Hasegawa.
1107 * Alpha, SPARC, and IA-64 now also using floating stacks.
1109 * Startup time of internationalized applications greatly improved through
1110 iconv cache. Use iconvconfig to generate the cache file.
1111 Contributed by Ulrich Drepper.
1113 * The IA-64 specific part of ld.so was rewritten to eliminate some pretty
1114 severe performance problems. Patch by David Mosberger.
1116 * The Hurd port got a lot more functionality like AIO, various stdio
1117 extensions, etc. Mainly done by Roland McGrath.
1119 * mtrace can now lookup symbols in shared libraries.
1120 \f
1121 Version 2.2.3
1123 * Intel's IA-64 math library is largely integrated. It provides fast and
1124 accurate implementatations for most basic and standard math functions
1125 in float, double, and long double format.
1127 * Stephen Moshier implemented j0, j1, jn, y0, y1, yn, lgamma, erf, erfc,
1128 and asin for the 96-bit long double format and asin, log, tan for the
1129 128-bit long double format.
1131 * The beginning of a last-bit accurate math library by IBM Haifa were added.
1132 The basic double functions exist today. Contributed by Abraham Ziv
1133 <ziv@il.ibm.com>, Moshe Olshansky <olshansk@il.ibm.com>, Ealan Henis
1134 <ealan@il.ibm.com>, and Anna Reitman <reitman@il.ibm.com>.
1136 * An asynchronous name lookup library was added. The interface is designed
1137 after POSIX AIO. The proposal was circulated beforehand to get comments.
1138 No negative ones came in. Implemented by Ulrich Drepper.
1140 * Port to S390/64bit contributed by Martin Schwidefsky
1141 <schwidefsky@de.ibm.com>.
1143 * David Mosberger <davidm@hpl.hp.com> implemented the setcontext family
1144 of functions for Linux/IA-64.
1146 * The RPC code is now thread safe. Threads can now use the same service
1147 of different services at the same time. Patch by Eric Norum
1148 <eric.norum@usask.ca> with some help by Ulrich Drepper.
1150 * Martin Schwidefsky <schwidefsky@de.ibm.com> implemented the setcontext
1151 family of functions for Linux/S390.
1153 * Ulrich Drepper <drepper@redhat.com> implemented the setcontext family
1154 of functions for Linux/x86.
1156 * Port to Linux/CRIS contributed by Axis Communications.
1157 \f
1158 Version 2.2.2
1160 * Lots of headers were cleaned up. Using the tool in the conform/ subdir
1161 we can now check for namespace violations and missing declarations. The
1162 result is that almost all headers are now Unix-compliant (as defined in
1163 the upcoming XPG6). The negative side is that some programs might need
1164 corrections, too, if they depend on the incorrect form of the headers in
1165 previous versions which defined too many symbols and included too many
1166 other headers.
1168 * regex now handles multibyte character sets correctly.
1169 Contributed by Isamu Hasegawa <isamu@yamato.ibm.com>.
1171 * iconv (the program) does now conform to the upcoming XPG6 and handles
1172 charmaps. Instead of the charset names the path of charmaps can be
1173 provided and the conversion happens based on this data.
1174 Contributed by Ulrich Drepper.
1176 * The locale program now provides detailed information about the installed
1177 locales. While
1179 locale -a
1181 only lists the names of the supported locales
1183 locale -a --verbose
1185 provides details such as country, language, and codeset name.
1186 Contributed by Ulrich Drepper.
1187 \f
1188 Version 2.2.1
1190 * The gencat program now parses the input file according to the charset
1191 selected by the LC_CTYPE category. This is important for stateful
1192 character sets. To make generating catalogs easier there is a way
1193 to overwrite the charset selected by the locale: before the first
1194 message or $ quote line the catalog can contain a line like
1196 $ codeset=ISO-8859-2
1198 to select the charset (ISO-8859-2 in this case).
1200 Implemented by Shinya Hanataka and Ulrich Drepper.
1202 * New codeset conversion modules: IBM-922 (Estonia PC codeset),
1203 IBM-1124 (Ukraine PC codeset), IBM-1129 (Vietnamese PC codeset).
1204 Contributed by Masahide Washizawa <washi@jp.ibm.com>.
1206 * Optimized string functions for Alpha ev6 and ev67 by Richard Henderson
1207 <rth@redhat.com> and Rick Gorton <rick.gorton@alpha-processor.com>.
1209 * The LANGUAGE environment variable is now ignored unless the locale is
1210 changed from the default "C" locale.
1212 * The usual bug fixes.
1213 \f
1214 Version 2.2
1216 * Greg McGary added runtime support for bounds checking using gcc's
1217 new -fbounded-pointers option. ix86 target is complete. PowerPC
1218 is in progress.
1220 * Thorsten Kukuk added secure mode support to nscd.
1222 * The Berkeley db libraries have been removed.
1224 Related, the nss_db module is now in a separate package since it
1225 obviously requires a database library being available.
1227 * Wide character I/O streams implemented by Ulrich Drepper.
1229 * Functions from the extended socket API added by Ulrich Drepper.
1231 * Functions feenableexcept and fedisableexcept to control the
1232 behaviour of individual exceptions have been added by Andreas Jaeger.
1234 * ldconfig program added by Andreas Jaeger and Jakub Jelinek.
1236 * The resolver code has been updated from bind 8.2.3-T5B which supports
1237 threads. The integration was done by Andreas Jaeger, Adam D. Bradley,
1238 and Mark Kettenis.
1240 This change could in some situations effect backward compatibility. Since
1241 now `_res' is a thread-local instead of a global variable, modifying it
1242 in one thread does not have any effect in other threads.
1244 The resolver library was also extended to allow IPv6 as the transport
1245 protocol for the requests. This work was done by Stig Venaas.
1247 * Compatibility code for K&R C compilers has been removed from the
1248 header files. A ISO C compiler is needed to use the library
1249 (conforming to either C89 or C99 standard).
1251 * Complete rewrite of the localedef program to support multibyte character
1252 sets. Implement handling of ISO 14651 and ISO 14652. Rewrite strcoll,
1253 strxfrm, wcscoll, and wcsxfrm functions. Make isw*() functions work.
1254 Implemented by Ulrich Drepper.
1256 Bruno Haible significantly improved the generation and use of the data
1257 structures for the wide character tables.
1259 * Plural handling in gettext implemented by Ulrich Drepper.
1261 * The utmp daemon has been removed.
1263 * The port to MIPS-Linux has been finished by Andreas Jaeger.
1265 * A port to Hitachi SH3 and SH4 has been contributed by Kazumoto Kojima
1266 and Yutaka Niibe.
1268 * POSIX clocks and timers implemented by Kaz Kylheku and Ulrich Drepper.
1270 * POSIX barriers implemented by Kaz Kylheku.
1272 * POSIX spawn function family implemented by Ulrich Drepper.
1274 * POSIX spinlocks are now available.
1276 * Timed wait functions for mutex, rwlock, and semaphores are implemented.
1278 * the configure option --enable-kernel=X.Y.Z allows to strip out
1279 compatibility for kernel versions before X.Y.Z. This is currently only
1280 implemented for Linux.
1282 * the sockaddr_in6 structure changed. The IPv6 working group added a new
1283 field sin6_scope_id. This means that all programs using IPv6 should be
1284 recompiled. Don't expect binary compatibility with previous glibc
1285 versions.
1287 * various conversion modules for IBM character sets contributed by
1288 Masahide Washizawa.
1290 * IA-64 port by Jes Sorensen and HJ Lu.
1291 \f
1292 Version 2.1.3
1294 * bug fixes
1296 \f
1297 Version 2.1.2
1299 * bug fixes
1301 \f
1302 Version 2.1.1
1304 * New ISO C 9x function _Exit, imaxabs, and imaxdiv are added.
1306 * New xdr functions are added; some rpc functions are now 64bit clean.
1308 * Fixed a number of bugs and memory leaks (especially in NIS+ code).
1310 * Fixed known incompatibilities with glibc 2.0.
1312 * New functions lock64, strchrnul, rawmemchr, getutmp and getutmpx.
1314 * Optimized a number of functions (especially the ELF dynamic loader).
1316 * Update timezone data files.
1318 * lots of charmaps corrections
1320 * some new locale definitions and charmaps
1322 \f
1323 Version 2.1
1325 * Richard Henderson corrected size of struct timeval on Linux/Alpha to
1326 conform to POSIX member type requirements. Symbol versions have been
1327 adjusted as needed within the library, and for direct use by applications,
1328 but there is potential for problems if third-party libraries use
1329 struct timeval as part of their interface. This does not present
1330 a problem for X and other "essential" system libraries.
1332 * An additional locale model to support C++ Standard Library locale
1333 model and probably more was implemented by Ulrich Drepper.
1335 * Eric Youngdale and Ulrich Drepper implemented versioning of objects on
1336 symbol level.
1338 * Miles Bader provided the `argp' function family to support hierachical
1339 command line argument parsing, layered on top of getopt.
1341 * strtod accepts new hexadecimal floating-point format from ISO C 9X.
1343 * printf has two new specifiers %a and %A to print hexadecimal flaoting-point
1344 numbers.
1346 * scanf recognizes the %a and %A format for scanning floating point numbers.
1348 * the new headers <stdint.h> and <inttypes.h> from ISO C 9X provides
1349 information and interfaces for the available integer types.
1351 * about 130 new math functions were added to implement the ISO C9x math
1352 library.
1354 * the new header <complex.h> contains definitions of the complex math
1355 functions from ISO C 9X.
1357 * the new header <tgmath.h> defines generic macros to use complex or
1358 real valued functions.
1360 * Thorsten Kukuk provided an implementation for NIS+, securelevel 0, 1 and 2.
1362 * Andreas Jaeger provided a test suite for the math library.
1364 * Mark Kettenis implemented the utmpx interface and an utmp daemon.
1366 * Ulrich Drepper added character set conversion functions (iconv).
1368 * Optimized string functions have been added.
1370 * The localedata addon is now part of glibc.
1372 * An implementation of profiling shared libraries was added by Ulrich Drepper.
1374 * Thorsten Kukuk and Ulrich Drepper provided an implementation for a caching
1375 daemon for NSS (nscd).
1377 Missing a better place here are some numbers on improvements. Under
1378 Linux 2.1.125 un-tar-ing the kernel sources takes
1380 user system wall
1382 using local files 12.19s 6.88s 22.91s
1384 using NIS 13.92s 8.91s 26.34s
1386 using NIS & nscd 10.37s 7.34s 25.30s
1388 using NIS+ 27.57s 30.37s 640.46s
1390 using NIS+ & nscd 10.25s 7.83s 26.51s
1392 using NIS & old nscd [1] 13.83s 8.32s 29.60s
1394 Keep in mind that non-namelookup related operations dominate above times.
1395 It was just a common complain that using NIS+ unpacking the kernel is
1396 horribly slow.
1398 [1] The old nscd implementation is not available anymore since it was
1399 distributed with glibc up to version 2.0.98 and thus is now replaced.
1401 * Tim Waugh provided an implementation of the POSIX.2 wordexp function family.
1403 * Mark Kettenis provided a Hesiod NSS module.
1405 * The ELF dynamic loader knows how to process dynamic string tokens ($ORIGIN
1406 and $PLATFORM) in RPATHs and similar strings (Ulrich Drepper).
1408 * rcmd can now handle netgroups (Dick Streefland).
1410 * A port to the ARM was contributed by Phil Blundell, Pat Beirne and Scott
1411 Bambrough.
1413 * Support for the IPv6 protocol has been added to the socket API, as per the
1414 latest draft standards.
1416 * Support for Linux 2.2 has been added.
1418 * Interface changes relative to the latest 2.0.x release:
1419 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1420 addseverity NEW: Unix98
1421 alphasort64 NEW: LFS
1422 argp_err_exit_status NEW: argp, GNU ext
1423 argp_error NEW: argp, GNU ext
1424 argp_failure NEW: argp, GNU ext
1425 argp_help NEW: argp, GNU ext
1426 argp_parse NEW: argp, GNU ext
1427 argp_program_bug_address NEW: argp, GNU ext
1428 argp_program_version NEW: argp, GNU ext
1429 argp_program_version_hook NEW: argp, GNU ext
1430 argp_state_help NEW: argp, GNU ext
1431 argp_usage NEW: argp, GNU ext
1432 authdes_create NEW: Secure RPC
1433 authdes_getucred NEW: Secure RPC
1434 authdes_pk_create NEW: Secure RPC
1435 backtrace NEW: GNU ext.
1436 backtrace_symbols NEW: GNU ext.
1437 backtrace_symbols_fd NEW: GNU ext.
1438 cacos NEW: ISO C 9x
1439 cacosf NEW: ISO C 9x
1440 cacosh NEW: ISO C 9x
1441 cacoshf NEW: ISO C 9x
1442 cacoshl NEW: ISO C 9x
1443 cacosl NEW: ISO C 9x
1444 capget NEW: kernel
1445 capset NEW: kernel
1446 carg NEW: ISO C 9x
1447 cargf NEW: ISO C 9x
1448 cargl NEW: ISO C 9x
1449 casin NEW: ISO C 9x
1450 casinf NEW: ISO C 9x
1451 casinh NEW: ISO C 9x
1452 casinhf NEW: ISO C 9x
1453 casinhl NEW: ISO C 9x
1454 casinl NEW: ISO C 9x
1455 catan NEW: ISO C 9x
1456 catanf NEW: ISO C 9x
1457 catanh NEW: ISO C 9x
1458 catanhf NEW: ISO C 9x
1459 catanhl NEW: ISO C 9x
1460 catanl NEW: ISO C 9x
1461 cbc_crypt NEW: Secure RPC
1462 ccos NEW: ISO C 9x
1463 ccosf NEW: ISO C 9x
1464 ccosh NEW: ISO C 9x
1465 ccoshf NEW: ISO C 9x
1466 ccoshl NEW: ISO C 9x
1467 ccosl NEW: ISO C 9x
1468 cexp NEW: ISO C 9x
1469 cexpf NEW: ISO C 9x
1470 cexpl NEW: ISO C 9x
1471 cimag NEW: ISO C 9x
1472 cimagf NEW: ISO C 9x
1473 cimagl NEW: ISO C 9x
1474 clearerr_locked REMOVED
1475 clntunix_create NEW: sunrpc ext
1476 clog NEW: ISO C 9x
1477 clog10 NEW: ISO C 9x
1478 clog10f NEW: ISO C 9x
1479 clog10l NEW: ISO C 9x
1480 clogf NEW: ISO C 9x
1481 clogl NEW: ISO C 9x
1482 conj NEW: ISO C 9x
1483 conjf NEW: ISO C 9x
1484 conjl NEW: ISO C 9x
1485 cpow NEW: ISO C 9x
1486 cpowf NEW: ISO C 9x
1487 cpowl NEW: ISO C 9x
1488 cproj NEW: ISO C 9x
1489 cprojf NEW: ISO C 9x
1490 cprojl NEW: ISO C 9x
1491 creal NEW: ISO C 9x
1492 crealf NEW: ISO C 9x
1493 creall NEW: ISO C 9x
1494 creat64 NEW: LFS
1495 csin NEW: ISO C 9x
1496 csinf NEW: ISO C 9x
1497 csinh NEW: ISO C 9x
1498 csinhf NEW: ISO C 9x
1499 csinhl NEW: ISO C 9x
1500 csinl NEW: ISO C 9x
1501 csqrt NEW: ISO C 9x
1502 csqrtf NEW: ISO C 9x
1503 csqrtl NEW: ISO C 9x
1504 ctan NEW: ISO C 9x
1505 ctanf NEW: ISO C 9x
1506 ctanh NEW: ISO C 9x
1507 ctanhf NEW: ISO C 9x
1508 ctanhl NEW: ISO C 9x
1509 ctanl NEW: ISO C 9x
1510 des_setparity NEW: Secure RPC
1511 ecb_crypt NEW: Secure RPC
1512 endutxent NEW: Unix98
1513 exp10 NEW: ISO C 9x
1514 exp10f NEW: ISO C 9x
1515 exp10l NEW: ISO C 9x
1516 exp2 NEW: ISO C 9x
1517 exp2f NEW: ISO C 9x
1518 exp2l NEW: ISO C 9x
1519 fattach NEW: STREAMS
1520 fdetach NEW: STREAMS
1521 fdim NEW: ISO C 9x
1522 fdimf NEW: ISO C 9x
1523 fdiml NEW: ISO C 9x
1524 feclearexcept NEW: ISO C 9x
1525 fegetenv NEW: ISO C 9x
1526 fegetexceptflag NEW: ISO C 9x
1527 fegetround NEW: ISO C 9x
1528 feholdexcept NEW: ISO C 9x
1529 feof_locked REMOVED
1530 feraiseexcept NEW: ISO C 9x
1531 ferror_locked REMOVED
1532 fesetenv NEW: ISO C 9x
1533 fesetexceptflag NEW: ISO C 9x
1534 fesetround NEW: ISO C 9x
1535 fetestexcept NEW: ISO C 9x
1536 feupdateenv NEW: ISO C 9x
1537 fflush_locked REMOVED
1538 ffsl NEW: GNU ext.
1539 ffsll NEW: GNU ext.
1540 fgetpos64 NEW: LFS
1541 fgets_unlocked NEW: GNU ext.
1542 fileno_locked REMOVED
1543 fma NEW: ISO C 9x
1544 fmaf NEW: ISO C 9x
1545 fmal NEW: ISO C 9x
1546 fmax NEW: ISO C 9x
1547 fmaxf NEW: ISO C 9x
1548 fmaxl NEW: ISO C 9x
1549 fmin NEW: ISO C 9x
1550 fminf NEW: ISO C 9x
1551 fminl NEW: ISO C 9x
1552 fmtmsg NEW: Unix98
1553 fopen64 NEW: LFS
1554 fputc_locked REMOVED
1555 fputs_unlocked NEW: GNU ext.
1556 fread_unlocked NEW: GNU ext.
1557 freopen64 NEW: LFS
1558 fseeko NEW: Unix98
1559 fsetpos64 NEW: LFS
1560 fstatfs64 NEW: LFS
1561 fstatvfs NEW: Unix98
1562 fstatvfs64 NEW: LFS
1563 ftello NEW: Unix98
1564 ftello64 NEW: LFS
1565 ftruncate64 NEW: LFS
1566 ftw64 NEW: LFS
1567 fwrite_unlocked NEW: GNU ext.
1568 gai_strerror NEW: IPv6
1569 gamma_r REMOVED
1570 gammaf_r REMOVED
1571 gammal_r REMOVED
1572 getchar_locked REMOVED
1573 getdate NEW: Unix98
1574 getdate_err NEW: Unix98
1575 getdate_r NEW: GNU ext.
1576 getmsg NEW: STREAMS
1577 getnameinfo NEW: IPv6
1578 getnetname NEW: Secure RPC
1579 getpmsg NEW: STREAMS
1580 getpt NEW: Unix98 PTY
1581 getrlimit64 NEW: LFS
1582 getutxent NEW: Unix98
1583 getutxid NEW: Unix98
1584 getutxline NEW: Unix98
1585 glob64 NEW: GNU ext.
1586 globfree64 NEW: GNU ext.
1587 gnu_get_libc_release NEW: GNU ext.
1588 gnu_get_libc_version NEW: GNU ext.
1589 grantpt NEW: Unix98 PTY
1590 host2netname NEW: Secure RPC
1591 iconv NEW: iconv
1592 iconv_close NEW: iconv
1593 iconv_open NEW: iconv
1594 if_freenameindex NEW: IPv6
1595 if_indextoname NEW: IPv6
1596 if_nameindex NEW: IPv6
1597 if_nametoindex NEW: IPv6
1598 in6addr_any NEW: IPv6
1599 in6addr_loopback NEW: IPv6
1600 inet6_isipv4mapped NEW: IPv6
1601 isastream NEW: STREAMS
1602 iswblank NEW: GNU ext.
1603 key_decryptsession NEW: Secure RPC
1604 key_decryptsession_pk NEW: Secure RPC
1605 key_encryptsession NEW: Secure RPC
1606 key_encryptsession_pk NEW: Secure RPC
1607 key_gendes NEW: Secure RPC
1608 key_get_conv NEW: Secure RPC
1609 key_secretkey_is_set NEW: Secure RPC
1610 key_setnet NEW: Secure RPC
1611 key_setsecret NEW: Secure RPC
1612 llrint NEW: ISO C 9x
1613 llrintf NEW: ISO C 9x
1614 llrintl NEW: ISO C 9x
1615 llround NEW: ISO C 9x
1616 llroundf NEW: ISO C 9x
1617 llroundl NEW: ISO C 9x
1618 log2 NEW: ISO C 9x
1619 log2f NEW: ISO C 9x
1620 log2l NEW: ISO C 9x
1621 lrint NEW: ISO C 9x
1622 lrintf NEW: ISO C 9x
1623 lrintl NEW: ISO C 9x
1624 lround NEW: ISO C 9x
1625 lroundf NEW: ISO C 9x
1626 lroundl NEW: ISO C 9x
1627 lseek64 NEW: LFS
1628 makecontext NEW: Unix98
1629 mempcpy NEW: GNU ext.
1630 mmap64 NEW: LFS
1631 moncontrol REMOVED
1632 modify_ldt NEW: kernel
1633 nan NEW: ISO C 9x
1634 nanf NEW: ISO C 9x
1635 nanl NEW: ISO C 9x
1636 nearbyint NEW: ISO C 9x
1637 nearbyintf NEW: ISO C 9x
1638 nearbyintl NEW: ISO C 9x
1639 netname2host NEW: Secure RPC
1640 netname2user NEW: Secure RPC
1641 nexttoward NEW: ISO C 9x
1642 nexttowardf NEW: ISO C 9x
1643 nexttowardl NEW: ISO C 9x
1644 nftw NEW: Unix98
1645 nftw64 NEW: LFS
1646 open64 NEW: LFS
1647 passwd2des NEW: Secure RPC
1648 pow10 NEW: GNU ext.
1649 pow10f NEW: GNU ext.
1650 pow10l NEW: GNU ext.
1651 pread NEW: Unix98
1652 pread64 NEW: LFS
1653 printf_size NEW: GNU ext.
1654 printf_size_info NEW: GNU ext.
1655 profil_counter REMOVED
1656 pthread_mutexattr_getkind_np REPLACED
1657 pthread_mutexattr_setkind_np REPLACED
1658 ptsname NEW: Unix98 PTY
1659 ptsname_r NEW: Unix98 PTY
1660 putc_locked REMOVED
1661 putchar_locked REMOVED
1662 putgrent NEW: GNU ext.
1663 putmsg NEW: STREAMS
1664 putpmsg NEW: STREAMS
1665 pututxline NEW: Unix98
1666 pwrite NEW: Unix98
1667 pwrite64 NEW: LFS
1668 readdir64 NEW: LFS
1669 readdir64_r NEW: LFS
1670 remquo NEW: ISO C 9x
1671 remquof NEW: ISO C 9x
1672 remquol NEW: ISO C 9x
1673 round NEW: ISO C 9x
1674 roundf NEW: ISO C 9x
1675 roundl NEW: ISO C 9x
1676 rtime NEW: GNU ext.
1677 scalbln NEW: ISO C 9x
1678 scalblnf NEW: ISO C 9x
1679 scalblnl NEW: ISO C 9x
1680 scandir64 NEW: LFS
1681 sendfile NEW: kernel
1682 setcontext NEW: Unix98
1683 setrlimit64 NEW: LFS
1684 setutxent NEW: Unix98
1685 sighold NEW: Unix98
1686 sigignore NEW: Unix98
1687 sigqueue NEW: POSIX.1b
1688 sigrelse NEW: Unix98
1689 sigset NEW: POSIX.1b
1690 sigtimedwait NEW: POSIX.1b
1691 sigwaitinfo NEW: POSIX.1b
1692 sincos NEW: GNU ext.
1693 sincosf NEW: GNU ext.
1694 sincosl NEW: GNU ext.
1695 statfs64 NEW: LFS
1696 statvfs NEW: Unix98
1697 statvfs64 NEW: LFS
1698 strcasestr NEW: GNU ext.
1699 strtoimax NEW: ISO C 9x
1700 strtoumax NEW: ISO C 9x
1701 strverscmp NEW: GNU ext.
1702 svcauthdes_stats NEW: Secure RPC
1703 svcunix_create NEW: sunrpc etx
1704 svcunixfd_create NEW: sunrpc ext
1705 swapcontext NEW: Unix98
1706 tcgetsid NEW: Unix98 PTY
1707 tdestroy NEW: GNU ext.
1708 tgamma NEW: ISO C 9x
1709 tgammaf NEW: ISO C 9x
1710 tgammal NEW: ISO C 9x
1711 tmpfile64 NEW: LFS
1712 trunc NEW: ISO C 9x
1713 truncate64 NEW: LFS
1714 truncf NEW: ISO C 9x
1715 truncl NEW: ISO C 9x
1716 umount2 NEW: kernel
1717 unlockpt NEW: Unix98 PTY
1718 updwtmpx NEW: Unix98
1719 user2netname NEW: Secure RPC
1720 utmpxname NEW: Unix98
1721 versionsort NEW: GNU ext.
1722 versionsort64 NEW: GNU ext.
1723 waitid NEW: Unix98
1724 wcscasecmp NEW: GNU ext.
1725 wcsncasecmp NEW: GNU ext.
1726 wcsnlen NEW: GNU ext.
1727 wcstoimax NEW: ISO C 9x
1728 wcstoll NEW: ISO C 9x
1729 wcstoull NEW: ISO C 9x
1730 wcstoumax NEW: ISO C 9x
1731 wcswcs NEW: Unix98
1732 wordexp NEW: POSIX.2
1733 wordfree NEW: POSIX.2
1734 write_profiling REMOVED
1735 xdecrypt NEW: Secure RPC
1736 xdr_authdes_cred NEW: Secure RPC
1737 xdr_authdes_verf NEW: Secure RPC
1738 xdr_cryptkeyarg NEW: Secure RPC
1739 xdr_cryptkeyarg2 NEW: Secure RPC
1740 xdr_cryptkeyres NEW: Secure RPC
1741 xdr_getcredres NEW: Secure RPC
1742 xdr_key_netstarg NEW: Secure RPC
1743 xdr_key_netstres NEW: Secure RPC
1744 xdr_keybuf NEW: Secure RPC
1745 xdr_keystatus NEW: Secure RPC
1746 xdr_netnamestr NEW: Secure RPC
1747 xdr_sizeof NEW: Secure RPC
1748 xdr_unixcred NEW: sunrpc ext
1749 xencrypt NEW: Secure RPC
1750 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1751 \f
1752 Version 2.0.6
1754 * more bug fixes
1756 \f
1757 Version 2.0.5
1759 * more bug fixes
1761 * inet_ntoa is thread-safe
1763 * updwtmp is moved from libutil to libc
1765 * rewrite of cbrt function
1767 * update of timezone data
1768 \f
1769 Version 2.0.4
1771 * more bug fixes
1772 \f
1773 Version 2.0.3
1775 * more bug fixes
1776 \f
1777 Version 2.0.2
1779 * more bug fixes
1781 * add atoll function
1783 * fix complex problems in Berkeley DB code
1785 * fix math functions
1786 \f
1787 Version 2.0.1
1789 * fixed lots of header problems (especially Linux/GNU specific)
1791 * dynamic loader preserves all registers
1793 * Roland McGrath provided support for handling of auxiliary objects in
1794 the ELF dynamic loader.
1796 * support for parallel builds is improved
1797 \f
1798 Version 2.0
1800 * GNU extensions are no longer declared by default. To enable them you
1801 must define the macro `_GNU_SOURCE' in your program or compile with
1802 `-D_GNU_SOURCE'.
1804 * The library has changed from using GNU ld symbol aliases to using weak
1805 symbols where available. The ELF object file format supports weak
1806 symbols; GNU ld also supports weak symbols in the a.out format. (There
1807 is also now support for other GNU ld extensions in ELF. Use the
1808 `--with-elf' option to configure to indicate you have ELF, and
1809 `--with-gnu-ld' if using GNU ld.) This change resulted in the deletion
1810 of many files which contained only symbol aliases, reducing the size of
1811 the source and the compiled library; many other files were renamed to
1812 less cryptic names previously occupied by the symbol alias files.
1813 There is a new header file <elf.h> for programs which operate on
1814 files in the ELF format.
1816 * Converted to Autoconf version 2, so `configure' has more options.
1817 Run `configure --help' to see the details.
1819 * The library can now be configured to build profiling, highly-optimized
1820 (but undebuggable), and/or shared libraries (ELF with GNU ld only). The
1821 `--enable-profile', `--enable-omitfp', and `--enable-shared' options to
1822 `configure' enable building these extra libraries. The shared library is
1823 built by default when using both ELF and GNU ld. When shared libraries
1824 are enabled, the new library `-ldl' is available for arbitrary run-time
1825 loading of shared objects; its interface is defined in <dlfcn.h>. The
1826 new header file <link.h> gives access to the internals of the run-time
1827 dynamic linker, `ld.so'. The shell script `ldd' is similar to the
1828 application of same name on other systems and it provides information
1829 about dynamically linked binaries.
1831 * The C library now provides the run-time support code for profiling
1832 executables compiled with `-pg'. Programs can control the profiling code
1833 through the interface in <sys/gmon.h>. The `gmon.out' files written by
1834 the GNU C library can be read only by GNU `gprof' (from GNU binutils);
1835 the support for this file format was contributed by David Mosberger-Tang.
1837 * The math code has been replaced with a math library based on fdlibm from
1838 Sun, and modified by JT Conklin and Ulrich Drepper with i387 support, by
1839 Ian Taylor with `float' functions and by Ulrich Drepper with `long double'
1840 functions. The math functions now reside in a separate library, so
1841 programs using them will need to use `-lm' their linking commands.
1843 * John C. Bowman contributed optimized ix87 assembler inline functions.
1845 * Ulrich Drepper has contributed support for an `/etc/nsswitch.conf'
1846 mechanism similar to that found in Solaris 2. This is now used for the
1847 group, passwd, hosts, networks, services, protocols, rpc, ethers,
1848 shadow, netgroup, publickey, and alias databases. The `nsswitch.conf'
1849 file controls what services are used for each individual database. This
1850 works by loading shared libraries with names specified in `nsswitch.conf',
1851 so service modules can be changed or added at any time without even
1852 relinking any program. Currently there are the file, db, and NIS based
1853 NSS services available.
1855 * The new functions `strtoq' and `strtouq' parse integer values from
1856 strings, like `strtol' and `strtoul', but they return `long long int' and
1857 `unsigned long long int' values, respectively (64-bit quantities).
1859 * The new functions `strtof' and `strtold' parse floating-point values from
1860 strings, like `strtod', but they return `float' and `long double' values,
1861 respectively (on some machines `double' and `long double' are the same).
1863 * Ulrich Drepper has contributed new implementations of the floating-point
1864 printing and reading code used in the `printf' family of functions and
1865 `strtod', `strtof', and `strtold'. These new functions are perfectly
1866 accurate, and much faster than the old ones.
1868 * The implementation of the POSIX locale model was completely rewritten by
1869 Ulrich Drepper. This includes the new programs `localedef' and `locale'
1870 to compile the POSIX locale definition.
1872 * The former dummy implementations of the strcoll and strxfrm function are
1873 now replaced by fully functional code contributed by Ulrich Drepper. The
1874 collation information comes from the POSIX locale definitions.
1876 * The new header <langinfo.h> defines an interface for accessing
1877 various locale-dependent data (using the locale chosen with `setlocale').
1879 * Ulrich Drepper has contributed a new suite of functions for operation on
1880 wide-character and multibyte-character strings, in <wchar.h>;
1881 and classification and case conversion of wide characters, in <wctype.h>.
1882 These new functions are conforming to the ISO C, Amendement 1 specification.
1884 * There is now a second implementation of the standard I/O library available.
1885 It comes from GNU libg++ as was written by Per Bothner, heavily modified
1886 by Hongjiu Lu and made thread safe by Ulrich Drepper.
1888 * You can now use positional parameter specifications in format strings
1889 for the `printf' and `scanf' families of functions. For example,
1890 `printf ("Number %2$d, Mr %1$s\n", "Jones", 6);'' prints
1891 ``Number 6, Mr Jones''. This is mainly useful when providing different
1892 format strings for different languages, whose grammars may dictate
1893 different orderings of the values being printed. To support this
1894 feature, the interface for `register_printf_handler' has changed; see
1895 the header file <printf.h> for details.
1897 * The `printf' and `scanf' families of functions now understand a new
1898 formatting flag for numeric conversions: the ' flag (e.g. %'d or %'f) says
1899 to group numbers as indicated by the locale; for `scanf' and friends, this
1900 says to accept as valid only a number with all the proper grouping
1901 separators in the right places. In the default "C" locale, numbers are
1902 not grouped; but locales for specific countries will define the usual
1903 conventions (i.e. separate thousands with `,' in the US locale).
1905 * The pgrp functions have been regularized, slightly incompatibly but much
1906 less confusingly. The core functions are now `getpgid' and `setpgid',
1907 which take arguments for the PID to operate on; the POSIX.1 `getpgrp' (no
1908 argument) and BSD `setpgrp' (identical to `setpgid') functions are
1909 provided for compatibility. There is no longer an incompatible `getpgrp'
1910 with an argument declared under _BSD_SOURCE; no BSD code uses it.
1912 * The new header file <fts.h> and suite of functions simplify programs that
1913 operate on directory trees. This code comes from 4.4 BSD.
1915 * The resolver code has been updated from the BIND 4.9.5-P1 release.
1916 Parts of the code were heavily modified by Ulrich Drepper to fit in the
1917 NSS scheme used in glibc.
1919 * There is a new malloc debugging hook `__memalign_hook'.
1921 * There are new typedefs `ushort' for `unsigned short int' and `uint' for
1922 `unsigned int' in <sys/types.h>. These are for compatibility only and
1923 their use is discouraged.
1925 * The `-lmcheck' library to enable standard malloc debugging hooks is now
1926 done differently, so that it works even without GNU ld.
1928 * New function `euidaccess' checks allowed access to a file like `access',
1929 but using the effective IDs instead of the real IDs.
1931 * The time zone data files have been updated for the latest and greatest
1932 local time conventions of the countries of the world.
1934 * The new function `dirfd' extracts the file descriptor used by a DIR stream;
1935 see <dirent.h>.
1937 * The new functions `ecvt', `fcvt', and `gcvt' provide an obsolete interface
1938 for formatting floating-point numbers. They are provided only for
1939 compatibility; new programs should use `sprintf' instead. There are
1940 also equivalent function for the `long double' floating-point type and
1941 all functions also exist in a reentrant form.
1943 * The new auxiliary library `-lutil' from 4.4 BSD contains various
1944 functions for maintaining the login-record files (primarily of use to
1945 system programs such as `login'), and convenient functions for
1946 allocating and initializing a pseudo-terminal (pty) device.
1948 * Ulrich Drepper has contributed new support for System V style
1949 shared memory and IPC on systems that support it.
1951 * Ulrich Drepper has contributed several miscellaneous new functions found
1952 in System V: The `hsearch' family of functions provide an effective
1953 implementation of hash tables; `a64l' and `l64a' provide a very simple
1954 binary to ASCII mapping; `drand48' and friends provide a 48-bit random
1955 number generator.
1957 * Ulrich Drepper has contributed new reentrant counterparts for the
1958 `random' and `hsearch' families of functions; `random_r', `hsearch_r', etc.
1960 * Ulrich Drepper has contributed new, highly-optimized versions of several
1961 string functions for the i486/Pentium family of processors.
1963 * Ulrich Drepper has updated the Linux-specific code, based largely
1964 on work done in Hongjiu Lu's version of GNU libc for Linux.
1965 The GNU library now supports Linux versions 2.0.10 and later,
1966 using the ELF object file format (i[3456]86-*-linux).
1968 * Andreas Schwab has ported the C library to Linux/m68k (m68k-*-linux).
1970 * David Mosberger-Tang and Richard Henderson have ported the C library
1971 to Linux/Alpha (alpha-*-linux). Richard Henderson contributed the
1972 dynamic linking support for ELF/Alpha.
1974 * Richard Henderson contributed several Alpha optimized assembler function
1975 for arithmetic and string handling.
1977 * Ulrich Drepper has contributed a new set of message catalog functions to
1978 support multiple languages using the <libintl.h> interface, for use with
1979 his new package GNU gettext. Translation volunteers have contributed
1980 catalogs of the library's messages in Spanish, German, and Korean.
1982 * For compatibility with XPG4, Ulrich Drepper has contributed the `gencat'
1983 program and the `catgets' function for reading the catalog files it
1984 creates. (The <libintl.h> interface is preferred; we include the
1985 <nl_types.h> interface using `catgets' only for source compatibility with
1986 programs already written to use it.)
1988 * New header file <values.h> gives SVID-compatible names for <limits.h>
1989 constants.
1991 * Various new macros, declarations, and small header files for compatibility
1992 with 4.4 BSD.
1994 * New function `group_member' is a convenient way to check if a process has
1995 a given effective group ID.
1997 * When using GCC 2.7 and later, the socket functions are now declared in a
1998 special way so that passing an argument of type `struct sockaddr_in *',
1999 `struct sockaddr_ns *', or `struct sockaddr_un *' instead of the generic
2000 `struct sockaddr *' type, does not generate a type-clash warning.
2002 * New function `error' declared in header file <error.h> is a convenient
2003 function for printing error messages and optionally exiting; this is the
2004 canonical function used in GNU programs. The new functions `err', `warn',
2005 and friends in header file <err.h> are the canonical 4.4 BSD interface for
2006 doing the same thing.
2008 * The <glob.h> interface has several new flags from 4.4 BSD that extend the
2009 POSIX.2 `glob' function to do ~ and {...} expansion.
2011 * New function `unsetenv' complements `setenv' for compatibility with 4.4 BSD.
2012 `clearenv' which is used in POSIX.9 is also available.
2014 * New function `getsid' returns session ID number on systems that support it.
2016 * We have incorporated the 4.4 BSD `db' library (version 1.85). New header
2017 files <db.h> and <mpool.h> provide a rich set of functions for several
2018 types of simple databases stored in memory and in files, and <ndbm.h> is
2019 an old `ndbm'-compatible interface using the `db' functions. Link with
2020 `-ldb' to get these functions.
2022 * New macro `strdupa' copies a string like `strdup', but uses local stack
2023 space from `alloca' instead of dynamic heap space from `malloc'.
2025 * New function `strnlen' is like `strlen' but searches only a given maximum
2026 number of characters for the null terminator. `stpncpy', `strndup' and
2027 `strndupa' are similar variants for the `stpcpy', `strdup' and `strdupa'
2028 function.
2030 * New function `statfs' in header <sys/statfs.h>.
2032 * The new <argz.h> and <envz.h> interfaces contributed by Miles Bader
2033 provide convenient functions for operating on blocks of null-terminated
2034 strings.
2036 * A new suite of functions in <utmp.h> handle all the details of reading
2037 and writing the utmp file.
2039 * An implementation of the NIS/YP(tm) based NSS service was contributed by
2040 Thorsten Kukuk.
2042 * Paul Eggert and Ulrich Drepper modified the `strftime' function to be
2043 completely POSIX compliant and also implemented the extended functionality
2044 to handle alternate digit representation and alternate era date formats.
2046 * Ulrich Drepper provided an implementation of the `strptime' function
2047 defined in XPG4.2 which transforms a string into a `struct tm' value.
2049 * Paul Eggert provided the tzselect shell script as part of the timezone
2050 code. The shell script makes it easy to select the correct timezone
2051 specification.
2053 * The implementation of the malloc family of functions is completely replaced
2054 by a new implementation by Doug Lea with many improvements by Wolfram Gloger.
2055 The implementation uses the mmap function (if available) and it is
2056 optimized for the use in multi threaded programs.
2058 * Ulrich Drepper contributed a MD5 "encryption" for the crypt family of
2059 functions. This new functionality is usable by specifying a special
2060 salt string and it is compatible with implementation on *BSD systems.
2062 * Lots of functions from the XPG4.2 standard were added by Ulrich Drepper:
2063 `getsubopt' to handle second level command line options, `bsd_signal'
2064 to access BSD style `signal' functionality, the obsolete `regexp' style
2065 expression matcher.
2067 * the `lchown' function is available on system which support this
2068 functionality.
2070 * The implementation of the shadow password handling function was contributed
2071 by Ulrich Drepper.
2073 * David Mosberger-Tang changed the SunRPC implementation to be 64bit safe.
2075 * POSIX.1g support was added. The <sys/select.h> header is available,
2076 `isfdtype' and `pselect' are implemented. Craig Metz contributed an
2077 implementation of `getaddrinfo'.
2078 \f
2079 Version 1.09
2081 * For cross-compilation you should now set `BUILD_CC' instead of `HOST_CC'.
2083 * New header file <fstab.h> and new functions `getfsspec', `getfsent' and
2084 friends, for parsing /etc/fstab. This code comes from 4.4 BSD.
2086 * The new function `daemon' from 4.4 BSD is useful for server programs that
2087 want to put themselves in the background.
2089 * Joel Sherrill has contributed support for several standalone boards that
2090 run without an operating system.
2092 * `printf', `scanf' and friends now accept a `q' type modifier for long
2093 long int as well as `ll'. Formats using these might be `%qu' or `%lld'.
2095 * All of the code taken from BSD (notably most of the math and networking
2096 routines) has been updated from the BSD 4.4-Lite release.
2098 * The resolver code has been updated from the BIND-4.9.3-BETA9 release.
2100 * The new functions `getdomainname' and `setdomainname' fetch or change the
2101 YP/NIS domain name. These are system calls which exist on systems which
2102 have YP (aka NIS).
2104 * The time zone data files have been updated for the latest international
2105 conventions.
2107 * The SunRPC programs `portmap' and `rpcinfo' are now installed in
2108 $(sbindir) (usually /usr/local/sbin) instead of $(bindir).
2109 \f
2110 Version 1.08
2112 * The C library now includes support for Sun RPC, from Sun's free
2113 RPCSRC-4.0 distribution. The `portmap', `rpcinfo', and `rpcgen' programs
2114 are included. (There is still no support for YP.)
2116 * Tom Quinn has contributed a port of the C library to SGI machines running
2117 Irix 4 (mips-sgi-irix4).
2119 * The new `lockf' function is a simplified interface to the locking
2120 facilities of `fcntl', included for compatibility.
2122 * New time functions `timegm', `timelocal', and `dysize' for compatibility.
2124 * New header file <sys/timeb.h> and new function `ftime' for compatibility.
2126 * New header files <poll.h> and <sys/poll.h> and new function `poll' for
2127 compatibility.
2129 * The error message printed by `assert' for a failed assertion now includes
2130 the name of the program (if using GNU ld) and the name of the calling
2131 function (with versions of GCC that support this).
2133 * The `psignal' function is now declared in <signal.h>, not <stdio.h>.
2135 * The library now includes the <sys/mman.h> header file and memory
2136 management functions `mmap', `munmap', `mprotect', `msync', and
2137 `madvise', on systems that support those facilities.
2139 * The interface for `mcheck' has changed slightly: the function called to
2140 abort the program when an allocation inconsistency is detected now takes
2141 an argument that indicates the type of failure. The new function
2142 `mprobe' lets you request a consistency check for a particular block at
2143 any time (checks are normally done only when you call `free' or `realloc'
2144 on a block).
2146 * It is now possible to easily cross-compile the C library, building on one
2147 system a library to run on another machine and/or operating system. All
2148 you need to do is set the variable `HOST_CC' in `configparms' to the
2149 native compiler for programs to run on the machine you are building on (a
2150 few generator programs are used on Unix systems); set `CC' to the
2151 cross-compiler.
2153 * The new function `fexecve' (only implemented on the GNU system) executes
2154 a program file given a file descriptor already open on the file.
2155 \f
2156 Version 1.07
2158 * Brendan Kehoe has contributed most of a port to the DEC Alpha
2159 running OSF/1 (alpha-dec-osf1). He says it is 75% complete.
2161 * You can set the variable `libprefix' in `configparms' to specify a prefix
2162 to be prepended to installed library files; this makes it easy to install
2163 the GNU C library to be linked as `-lgnuc' or whatever.
2165 * The new `stpncpy' is a cross between `stpcpy' and `strncpy': It
2166 copies a limited number of characters from a string, and returns the
2167 address of the last character written.
2169 * You no longer need to check for whether the installed `stddef.h' is
2170 compatible with the GNU C library. configure now checks for you.
2172 * You can now define a per-stream `fileno' function to convert the
2173 stream's cookie into an integral file descriptor.
2175 * ``malloc (0)'' no longer returns a null pointer. Instead, it
2176 allocates zero bytes of storage, and returns a unique pointer which
2177 you can pass to `realloc' or `free'. The behavior is undefined if
2178 you dereference this pointer.
2180 * The C library now runs on Sony NEWS m68k machines running either
2181 NewsOS 3 or NewsOS 4.
2183 * The new `syscall' function is a system-dependent primitive function
2184 for invoking system calls. It has the canonical behavior on Unix
2185 systems, including unreliable return values for some calls (such as
2186 `pipe', `fork' and `getppid').
2188 * The error code `EWOULDBLOCK' is now obsolete; it is always defined
2189 to `EAGAIN', which is the preferred name. On systems whose kernels
2190 use two distinct codes, the C library now translates EWOULDBLOCK to
2191 EAGAIN in every system call function.
2192 \f
2193 Version 1.06
2195 * The GNU C Library Reference Manual is now distributed with the library.
2196 `make dvi' will produce a DVI file of the printed manual.
2197 `make info' will produce Info files that you can read on line using C-h i
2198 in Emacs or the `info' program.
2199 Please send comments on the manual to bug-glibc-manual@gnu.org.
2201 * The library now supports SVR4 on i386s (i386-unknown-sysv4).
2203 * Brendan Kehoe has contributed a port to Sun SPARCs running Solaris 2.
2205 * Jason Merrill has contributed a port to the Sequent Symmetry running
2206 Dynix version 3 (i386-sequent-dynix).
2208 * The library has been ported to i386s running SCO 3.2.4 (also known as SCO
2209 ODT 2.0; i386-unknown-sco3.2.4) or SCO 3.2 (i386-unknown-sco3.2).
2211 * New function `memory_warnings' lets you arrange to get warnings when
2212 malloc is running out of memory to allocate, like Emacs gives you.
2214 * The C library now contains the relocating allocator used in Emacs 19 for
2215 its editing buffers. This allocator (ralloc) minimizes allocation
2216 overhead and fragmentation by moving allocated regions around whenever it
2217 needs to. You always refer to a ralloc'd region with a "handle" (a
2218 pointer to a pointer--an object of type `void **').
2220 * There is a new `printf' format: `%m' gives you the string corresponding
2221 to the error code in `errno'.
2223 * In `scanf' formats, you can now use `%as' or `%a[' to do the normal `%s'
2224 or `%[' conversion, but instead of filling in a fixed-sized buffer you
2225 pass, the `a' modifier says to fill in a `char **' you pass with a
2226 malloc'd string.
2228 * The `fnmatch' function supports the new flag bits `FNM_LEADING_DIR' and
2229 `FNM_CASEFOLD'. `FNM_LEADING_DIR' lets a pattern like `foo*' match a
2230 name like `foo/bar'. `FNM_CASEFOLD' says to ignore case in matching.
2232 * `mkstemp' is a traditional Unix function to atomically create and open a
2233 uniquely-named temporary file.
2234 \f
2235 Version 1.05
2237 * The standard location for the file that says what the local timezone is
2238 has changed again. It is now `/usr/local/etc/localtime' (or more
2239 precisely, `${prefix}/etc/localtime') rather than `/etc/localtime'.
2241 * The distribution no longer contains any files with names longer than 14
2242 characters.
2244 * `struct ttyent' has two new flag bits: TTY_TRUSTED and TTY_CONSOLE.
2245 These are set by the new `trusted' and `console' keywords in `/etc/ttys'.
2247 * New functions `ttyslot' and `syslog' from 4.4 BSD.
2248 \f
2249 Version 1.04
2251 * The configuration process has changed quite a bit. The `configure'
2252 script is now used just like the configuration scripts for other GNU
2253 packages. The `sysdeps' directory hierarchy is much rearranged.
2254 The file `INSTALL' explains the new scheme in detail.
2256 * The header files no longer need to be processed into ANSI C and
2257 traditional C versions. There is just one set of files to install, and
2258 it will work with ANSI or old C compilers (including `gcc -traditional').
2260 * Brendan Kehoe and Ian Lance Taylor have ported the library to the
2261 MIPS DECStation running Ultrix 4.
2263 * The Sun 4 startup code (crt0) can now properly load SunOS 4 shared libraries.
2264 Tom Quinn contributed the initial code. The GNU C library can NOT yet be
2265 made itself into a shared library.
2267 * Yet further improved support for the i386, running 4.3 BSD-like systems
2268 (such as Mach 3 with the Unix single-server), or System V.
2270 * New function `strncasecmp' to do case-insensitive string comparison
2271 with limited length.
2273 * New function `strsep' is a reentrant alternative to `strtok'.
2275 * New functions `scandir' and `alphasort' for searching directories.
2277 * New function `setenv' is a better interface to `putenv'.
2279 * Ian Lance Taylor has contributed an implementation of the SVID `ftw'
2280 function for traversing a directory tree.
2282 * The GNU obstack package is now also part of the C library.
2283 The new function `open_obstack_stream' creates a stdio stream that
2284 writes onto an obstack; `obstack_printf' and `obstack_vprintf' do
2285 formatted output directly to an obstack.
2287 * Miscellaneous new functions: reboot, nice, sigaltstack (4.4 BSD only),
2288 cfmakeraw, getusershell, getpass, swab, getttyent, seteuid, setegid.
2290 * `FNM_FILE_NAME' is another name for `FNM_PATHNAME', used with `fnmatch'.
2292 * The new functions `strfry' and `memfrob' do mysterious and wonderful
2293 things to your strings.
2295 * There are some new test programs: test-fseek, testmb, and testrand.
2297 * Some work has been done to begin porting the library to 4.4 BSD and Linux.
2298 These ports are not finished, but are a good starting place for really
2299 supporting those systems.
2301 * `/etc/localtime' is now the standard location for the file that says what
2302 the local timezone is, rather than `/usr/local/lib/zoneinfo/localtime'.
2303 This follows the general principle that `/etc' is the place for all local
2304 configuration files.
2306 * The C library header files now use `extern "C"' when used by the C++
2307 compiler, so the C library should now work with C++ code.
2309 * The header file <bstring.h> is gone. <string.h> now declares bcopy,
2310 bcmp, bzero, and ffs. (Update: nowadays these functions are declared
2311 in <strings.h>.)
2313 * Mike Haertel (of GNU e?grep and malloc fame) has written a new sorting
2314 function which uses the `merge sort' algorithm, and is said to be
2315 significantly faster than the old GNU `qsort' function. Merge sort is
2316 now the standard `qsort' function. The new algorithm can require a lot
2317 of temporary storage; so, the old sorting function is called when the
2318 required storage is not available.
2320 * The C library now includes Michael Glad's Ultra Fast Crypt, which
2321 provides the Unix `crypt' function, plus some other entry points.
2323 * The code and header files taken from 4.4 BSD have been updated with the
2324 latest files released from Berkeley.
2325 \f
2326 ----------------------------------------------------------------------
2327 Copyright information:
2329 Copyright (C) 1992-2013 Free Software Foundation, Inc.
2331 Permission is granted to anyone to make or distribute verbatim copies
2332 of this document as received, in any medium, provided that the
2333 copyright notice and this permission notice are preserved,
2334 thus giving the recipient permission to redistribute in turn.
2336 Permission is granted to distribute modified versions
2337 of this document, or of portions of it,
2338 under the above conditions, provided also that they
2339 carry prominent notices stating who last changed them.
2340 \f
2341 Local variables:
2342 version-control: never
2343 fill-column: 76
2344 End: