| blob | 56ce7ef147d895ab30a0cf7a601cde865d225434 |
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 2.18
10 * The following bugs are resolved with this release:
12 2546, 2560, 5159, 6809, 7006, 10060, 10062, 10283, 10357, 10686, 11120,
13 11561, 12310, 12387, 12492, 12515, 12723, 13550, 13889, 13951, 13988,
14 14142, 14176, 14200, 14256, 14280, 14293, 14317, 14327, 14478, 14496,
15 14582, 14686, 14812, 14888, 14894, 14907, 14908, 14909, 14920, 14952,
16 14964, 14981, 14982, 14985, 14991, 14994, 14996, 15000, 15003, 15006,
17 15007, 15014, 15020, 15022, 15023, 15036, 15054, 15055, 15062, 15078,
18 15084, 15085, 15086, 15100, 15160, 15214, 15221, 15232, 15234, 15283,
19 15285, 15287, 15304, 15305, 15307, 15309, 15327, 15330, 15335, 15336,
20 15337, 15339, 15342, 15346, 15359, 15361, 15366, 15380, 15381, 15394,
21 15395, 15405, 15406, 15409, 15416, 15418, 15419, 15423, 15424, 15426,
22 15429, 15431, 15432, 15441, 15442, 15448, 15465, 15480, 15485, 15488,
23 15490, 15492, 15493, 15497, 15506, 15529, 15536, 15553, 15577, 15583,
24 15618, 15627, 15631, 15654, 15655, 15666, 15667, 15674.
26 * CVE-2013-0242 Buffer overrun in regexp matcher has been fixed (Bugzilla
27 #15078).
29 * CVE-2013-1914 Stack overflow in getaddrinfo with many results has been
30 fixed (Bugzilla #15330).
32 * Add support for calling C++11 thread_local object destructors on thread
33 and program exit. This needs compiler support for offloading C++11
34 destructor calls to glibc.
36 * Improved worst case performance of libm functions with double inputs and
37 output.
39 * Support for priority inherited mutexes in pthread condition variables on
40 non-x86 architectures.
42 * Port to Xilinx MicroBlaze contributed by David Holsgrove.
44 * Optimized string functions for AArch64. Implemented by Marcus Shawcroft.
46 * Optimized string functions for ARM. Implemented by Will Newton and
47 Richard Henderson.
49 * Optimized libm functions for SPARC. Implemented by David S. Miller.
51 * Support for building more of ARM glibc as Thumb-2 code. Implemented by
52 Richard Henderson.
54 * Support for building most of MIPS glibc as MIPS16 code. Implemented by
55 Chung-Lin Tang, Maciej W. Rozycki and Maxim Kuvyrkov.
57 * Added a benchmark framework to track performance of functions in glibc.
59 * New <math.h> macro named issignaling to check for a signaling NaN (sNaN).
60 It is based on draft TS 18661 and currently enabled as a GNU extension.
62 * On Linux, the clock function now uses the clock_gettime system call
63 for improved precision, rather than old times system call.
65 * Added new API functions pthread_getattr_default_np and
66 pthread_setattr_default_np to get and set the default pthread
67 attributes of a process.
69 * Added support for TSX lock elision for pthread mutexes on i386 and x86-64.
70 This may improve lock scaling of existing programs on TSX capable systems.
71 When the --enable-lock-elision=yes parameter is specified at configure
72 time lock elision will be enabled by default for all PTHREAD_MUTEX_DEFAULT
73 mutexes.
74 \f
75 Version 2.17
77 * The following bugs are resolved with this release:
79 1349, 3439, 3479, 3665, 5044, 5246, 5298, 5400, 6530, 6677, 6778, 6808,
80 9685, 9914, 10014, 10038, 10114, 10191, 10631, 10873, 11438, 11607, 11638,
81 11741, 12140, 13013, 13412, 13542, 13601, 13603, 13604, 13629, 13679,
82 13696, 13698, 13717, 13741, 13759, 13761, 13763, 13881, 13939, 13950,
83 13952, 13966, 14042, 14047, 14090, 14150, 14151, 14152, 14154, 14157,
84 14166, 14173, 14195, 14197, 14237, 14246, 14251, 14252, 14283, 14298,
85 14303, 14307, 14328, 14331, 14336, 14337, 14347, 14349, 14368, 14376,
86 14417, 14447, 14459, 14476, 14477, 14501, 14505, 14510, 14516, 14518,
87 14519, 14530, 14532, 14538, 14543, 14544, 14545, 14557, 14562, 14568,
88 14576, 14579, 14583, 14587, 14595, 14602, 14610, 14621, 14638, 14645,
89 14648, 14652, 14660, 14661, 14669, 14672, 14683, 14694, 14716, 14719,
90 14743, 14767, 14783, 14784, 14785, 14793, 14796, 14797, 14801, 14803,
91 14805, 14807, 14811, 14815, 14821, 14822, 14824, 14828, 14831, 14833,
92 14835, 14838, 14856, 14863, 14865, 14866, 14868, 14869, 14871, 14872,
93 14879, 14889, 14893, 14898, 14914.
95 * Optimization of memcpy for MIPS.
97 * CVE-2011-4609 svc_run() produces high cpu usage when accept fails with
98 EMFILE has been fixed (Bugzilla #14889).
100 * The add-on ports collection is now distributed in the "ports" subdirectory
101 of the main GNU C Library distribution, rather than separately.
103 * Port to ARM AArch64 contributed by Linaro.
105 * Support for STT_GNU_IFUNC symbols added for s390 and s390x.
106 Optimized versions of memcpy, memset, and memcmp added for System z10 and
107 zEnterprise z196.
108 Implemented by Andreas Krebbel.
110 * The new function secure_getenv allows secure access to the environment,
111 returning NULL if running in a SUID/SGID process. This function replaces
112 the internal function __secure_getenv.
114 * SystemTap static probes have been added into the dynamic linker.
115 Implemented by Gary Benson.
117 * Optimizations of string functions strstr, strcasestr and memmem.
118 Implemented by Maxim Kuvyrkov.
120 * The minimum Linux kernel version that this version of the GNU C Library
121 can be used with is 2.6.16.
123 * Optimizations of string functions memchr, wcschr, wcscpy, and wcsrchr for
124 powerpc POWER7. Implemented by Will Schmidt.
126 * New configure option --disable-nscd builds the C library such that it
127 never attempts to contact the Name Service Caching Daemon (nscd).
128 New configure option --disable-build-nscd avoids building nscd itself;
129 this is the default if --disable-nscd is used.
131 * Improved support for cross-compilation, including cross-testing and
132 bootstrap builds without a previously built glibc.
134 * Several testsuite tests are now able to test multiple IFUNC variants of an
135 interface, rather than just testing the one that would be chooen by
136 default.
138 * New configure options --with-bugurl and --with-pkgversion, for
139 distributors to use to embed their bug-reporting and package version
140 information in --help and --version output.
142 * The ttyname and ttyname_r functions on Linux now fall back to searching for
143 the tty file descriptor in /dev/pts or /dev if /proc is not available. This
144 allows creation of chroots without the procfs mounted on /proc.
146 * The `crypt' function now fails if passed salt bytes that violate the
147 specification for those values. On Linux, the `crypt' function will
148 consult /proc/sys/crypto/fips_enabled to determine if "FIPS mode" is
149 enabled, and fail on encrypted strings using the MD5 or DES algorithm
150 when the mode is enabled.
152 * The `clock_*' suite of functions (declared in <time.h>) is now available
153 directly in the main C library. Previously it was necessary to link with
154 -lrt to use these functions. This change has the effect that a
155 single-threaded program that uses a function such as `clock_gettime' (and
156 is not linked with -lrt) will no longer implicitly load the pthreads
157 library at runtime and so will not suffer the overheads associated with
158 multi-thread support in other code such as the C++ runtime library.
160 * New locales: ayc_PE, doi_IN, ia_FR, mni_IN, nhn_MX, niu_NU, niu_NZ,
161 sat_IN, and szl_PL.
162 \f
163 Version 2.16
165 * The following bugs are resolved with this release:
167 174, 208, 350, 369, 411, 706, 766, 887, 2074, 2541, 2547, 2548, 2550,
168 2551, 2552, 2553, 2554, 2562, 2563, 2565, 2566, 2570, 2576, 2636, 2678,
169 3335, 3440, 3748, 3768, 3866, 3868, 3906, 3976, 3992, 4026, 4108, 4596,
170 4822, 5077, 5461, 5805, 5993, 6471, 6486, 6578, 6649, 6730, 6770, 6794,
171 6884, 6890, 6894, 6895, 6907, 6911, 6959, 7064, 9739, 9902, 10110, 10135,
172 10140, 10153, 10210, 10254, 10346, 10375, 10545, 10716, 10846, 11174,
173 11261, 11322, 11365, 11451, 11494, 11521, 11677, 11837, 11959, 12047,
174 12097, 12193, 12194, 12297, 12298, 12301, 12340, 12354, 12416, 12495,
175 13058, 13223, 13361, 13525, 13526, 13527, 13528, 13529, 13530, 13531,
176 13532, 13533, 13547, 13551, 13552, 13553, 13555, 13556, 13559, 13563,
177 13566, 13576, 13579, 13583, 13592, 13594, 13613, 13618, 13637, 13656,
178 13658, 13673, 13691, 13695, 13704, 13705, 13706, 13718, 13726, 13738,
179 13739, 13743, 13750, 13758, 13760, 13761, 13775, 13786, 13787, 13792,
180 13806, 13824, 13840, 13841, 13844, 13846, 13848, 13851, 13852, 13854,
181 13871, 13872, 13873, 13879, 13882, 13883, 13884, 13885, 13886, 13892,
182 13895, 13908, 13910, 13911, 13912, 13913, 13914, 13915, 13916, 13917,
183 13918, 13919, 13920, 13921, 13922, 13923, 13924, 13926, 13927, 13928,
184 13938, 13941, 13942, 13954, 13955, 13956, 13963, 13967, 13968, 13970,
185 13973, 13979, 13983, 13986, 13996, 14012, 14027, 14033, 14034, 14036,
186 14040, 14043, 14044, 14048, 14049, 14050, 14053, 14055, 14059, 14064,
187 14075, 14080, 14083, 14103, 14104, 14109, 14112, 14117, 14122, 14123,
188 14134, 14153, 14183, 14188, 14199, 14210, 14218, 14229, 14241, 14273,
189 14277, 14278.
191 * Support for the x32 ABI on x86-64 added. The x32 target is selected by
192 configuring glibc with:
193 BUILD_CC='gcc' CC='gcc -mx32' CXX='g++ -mx32'
194 Visit <http://sites.google.com/site/x32abi/> for more x32 ABI info.
195 Implemented by H.J. Lu.
197 * ISO C11 support:
199 + define static_assert
201 + do not declare gets
203 + declare at_quick_exit and quick_exit also for ISO C11
205 + aligned_alloc. NB: The code is deliberately allows the size parameter
206 to not be a multiple of the alignment. This is a moronic requirement
207 in the standard but it is only a requirement on the caller, not the
208 implementation.
210 + timespec_get added
212 + uchar.h support added
214 + CMPLX, CMPLXF, CMPLXL added
216 Implemented by Ulrich Drepper.
218 * Support for the IA-64 has been moved to ports.
220 * Remove support for anything but ELF binary format
222 * Checking versions of poll, ppoll added.
223 Implemented by Ulrich Drepper.
225 * More generic and 64-bit performance optimizations to math functions.
226 Implemented by Ulrich Drepper.
228 * New configure option --enable-obsolete-rpc makes the deprecated RPC
229 headers and functions available at compile time as they were before
230 version 2.14. This option will be removed at some time in the future
231 after the TI-RPC library becomes fully sufficient for the needs of
232 existing applications.
234 * Compatibility code for Linux kernel versions before 2.4 has been removed.
235 Note that glibc is not expected to work with any Linux kernel version
236 before 2.6.
238 * New header <sys/auxv.h> and function getauxval allowing easy access to
239 the AT_* key-value pairs passed from the Linux kernel. The header also
240 defines the HWCAP_* bits associated with the AT_HWCAP key.
242 * New locales: mag_IN
244 * New configure option --enable-systemtap builds SystemTap static probes
245 into libc for setjmp and longjmp and into libpthread for various operations.
246 So far the setjmp/longjmp probes and some of the libpthread probes are
247 provided only for i*86 and x86_64.
248 Implemented by Roland McGrath and Rayson Ho.
250 * Optimized expf for x86-32 and x86-64. Implemented by Liubov Dmitrieva.
252 * More optimized functions for PowerPC. Implemented by Adhemerval Zanella
253 and Will Schmidt.
255 * More optimized functions for SPARC. Implemented by David S. Miller.
257 * Improved support for cross-compilation, especially bootstrap builds
258 without a previously built glibc.
260 * Ports for the TILE-Gx and TILEPro families of processors. Contributed by
261 Chris Metcalf from Tilera.
263 * Support for the old ARM ABI has been removed from ports. Only the EABI is
264 now supported for ARM processors.
266 * The hard-float variant of the ARM EABI now uses /lib/ld-linux-armhf.so.3
267 as the name of the dynamic linker, to distinguish it from the
268 /lib/ld-linux.so.3 dynamic linker used for the base EABI.
270 * Support for CRIS has been removed from ports.
272 * A new class of installed header has been documented for low-level
273 platform-specific functionality. PowerPC added the first instance with a
274 function to provide time base register access. Contributed by Tulio
275 Magno Quites Machado Filho.
277 * ix86 configurations now install header files that are consistent with
278 what x86-64 configurations install. These same header files can be used
279 for -m32, -m64, or -mx32 builds.
280 Contributed by H.J. Lu.
282 * Math library bug fixes. A thorough audit of all open math library bugs was
283 conducted by Joseph Myers. Significant progress was made on many math
284 library bugs resulting in more accurate exceptions and function results.
285 Many thanks to all those that contributed including Andreas Jaeger for his
286 patch review and work on the x87 trigonometric instruction issues.
288 * Timezone data is no longer installed. Timezone-related binaries and scripts
289 will continue to be installed. Users should obtain their timezone data from
290 their distribution provider or from the tzdata package at
291 <ftp://munnari.oz.au/pub/>.
292 \f
293 Version 2.15
295 * The following bugs are resolved with this release:
297 6779, 6783, 9696, 10103, 10709, 11589, 11929, 12403, 12786, 12840, 12847,
298 12868, 12852, 12874, 12885, 12892, 12906, 12907, 12922, 12935, 12962,
299 13007, 13021, 13061, 13062, 13067, 13068, 13085, 13088, 13090, 13092,
300 13096, 13114, 13118, 13123, 13134, 13138, 13147, 13150, 13166, 13179,
301 13185, 13189, 13192, 13268, 13276, 13282, 13291, 13305, 13328, 13335,
302 13337, 13344, 13358, 13367, 13413, 13416, 13423, 13439, 13446, 13472,
303 13484, 13506, 13515, 13523, 13524, 13538, 13540
305 * New program pldd to list loaded object of a process
306 Implemented by Ulrich Drepper.
308 * Add nss_db support back to glibc. No more dependency on Berkeley db
309 and support for initgroups lookups.
310 Implemented by Ulrich Drepper.
312 * Optimized strcpy, strncpy, stpcpy, stpncpy for SSE2 and SSSE3 on x86-32.
313 Contributed by HJ Lu.
315 * Improved strcpy, strncpy, stpcpy, stpncpy for SSE2 and SSSE3 on x86-64.
316 Contributed by HJ Lu.
318 * Optimized strcat, strncat on x86-64 and optimized wcscmp, wcslen, strnlen
319 on x86-32 and x86-64.
320 Contributed by Liubov Dmitrieva.
322 * Optimized strchr and strrchr for SSE on x86-32.
323 Contributed by Liubov Dmitrieva.
325 * Optimized memchr, memrchr, rawmemchr, memcmp, wmemcmp, wcschr, wcscpy
326 for x86-64 and x86-32.
327 Contributed by Liubov Dmitrieva.
329 * New interfaces: scandirat, scandirat64
330 Implemented by Ulrich Drepper.
332 * Checking versions of FD_SET, FD_CLR, and FD_ISSET added.
333 Implemented by Ulrich Drepper.
335 * nscd now also caches the netgroup database.
336 Implemented by Ulrich Drepper.
338 * Integrate libm with gcc's -ffinite-math-only option.
339 Implemented by Ulrich Drepper.
341 * Lots of generic, 64-bit, and x86-64-specific performance optimizations
342 to math functions. Implemented by Ulrich Drepper.
344 * Optimized strcasecmp and strncasecmp for AVX on x86-64.
345 Implemented by Ulrich Drepper.
347 * New Linux interfaces: process_vm_readv, process_vm_writev
349 * Optimized strcasecmp and strncasecmp for SSSE3 and SSE4.2 on x86-32.
350 Implemented by Ulrich Drepper.
352 * Optimized nearbyint and strcasecmp for PPC.
353 Implemented by Adhemerval Zanella.
355 * New locales: bho_IN, unm_US, es_CU, ta_LK
356 \f
357 Version 2.14
359 * The following bugs are resolved with this release:
361 386, 6420, 7101, 9730, 9732, 9809, 10138, 10149, 10157, 11099, 11257,
362 11258, 11487, 11532, 11558, 11578, 11634, 11653, 11668, 11697, 11724,
363 11781, 11799, 11820, 11837, 11857, 11869, 11892, 11895, 11901, 11945,
364 11947, 11952, 11987, 12052, 12083, 12158, 12178, 12200, 12346, 12350,
365 12393, 12420, 12432, 12445, 12449, 12453, 12454, 12460, 12469, 12489,
366 12509, 12510, 12511, 12518, 12527, 12541, 12545, 12551, 12582, 12583,
367 12587, 12597, 12601, 12611, 12625, 12626, 12631, 12650, 12653, 12655,
368 12660, 12671, 12681, 12684, 12685, 12711, 12713, 12714, 12717, 12723,
369 12724, 12734, 12738, 12746, 12766, 12775, 12777, 12782, 12788, 12792,
370 12795, 12811, 12813, 12814, 12841
372 * The RPC implementation in libc is obsoleted. Old programs keep working
373 but new programs cannot be linked with the routines in libc anymore.
374 Programs in need of RPC functionality must be linked against TI-RPC.
375 The TI-RPC implementation is IPv6 enabled and there are other benefits.
377 Visible changes of this change include (obviously) the inability to link
378 programs using RPC functions without referencing the TI-RPC library and the
379 removal of the RPC headers from the glibc headers.
380 Implemented by Ulrich Drepper.
382 * New Linux interfaces: clock_adjtime, name_to_handle_at, open_by_handle_at,
383 syncfs, setns, sendmmsg
385 * New locales: os_RU, bem_ZA, en_ZA, ff_SN, sw_KE, sw_TZ, lb_LU, wae_CH,
386 yue_HK, lij_IT, mhr_RU
388 * New encodings: CP770, CP771, CP772, CP773, CP774
390 * New program sotruss to trace calls through PLTs
391 Implemented by Ulrich Drepper.
393 * The malloc hook implementation is marked deprecated and will be removed
394 from the default implementation in the next version. The design never
395 worked ever since the introduction of threads. Even programs which do
396 not create threads themselves can use multiple threads created internally.
397 \f
398 Version 2.13
400 * The following bugs are resolved with this release:
402 3268, 6812, 7066, 10085, 10484, 10563, 10851, 11149, 11155, 11577, 11611,
403 11640, 11655, 11701, 11840, 11856, 11883, 11903, 11904, 11968, 11979,
404 12005, 12037, 12067, 12077, 12078, 12092, 12093, 12107, 12108, 12113,
405 12140, 12159, 12167, 12191, 12194, 12201, 12204, 12205, 12207, 12348,
406 12378, 12394, 12397
408 * New Linux interfaces: prlimit, prlimit64, fanotify_init, fanotify_mark
410 * POWER7 optimizations: memset, memcmp, strncmp
412 * New optimized string functions for x86-64: strnlen (SSE2),
413 strcasecmp (SSE2, SSSE3, SSE4.2), strncasecmp (SSE2, SSSE3, SSE4.2)
414 Implemented by Ulrich Drepper.
415 \f
416 Version 2.12
418 * The following bugs are resolved with this release:
420 3662, 4457, 5553, 10162, 10401, 10414, 10554, 10824, 10864, 10915,
421 10918, 10936, 10939, 10958, 10968, 10969, 10972, 10992, 11000, 11001,
422 11007, 11010, 11027, 11039, 11040, 11041, 11043, 11046, 11056, 11070,
423 11093, 11115, 11125, 11126, 11127, 11134, 11141, 11149, 11183, 11184,
424 11185, 11186, 11187, 11188, 11189, 11190, 11191, 11192, 11193, 11194,
425 11200, 11230, 11235, 11242, 11254, 11258, 11271, 11272, 11276, 11279,
426 11287, 11292, 11319, 11332, 11333, 11387, 11389, 11390, 11394, 11397,
427 11410, 11438, 11449, 11470, 11471, 11520, 11537, 11538, 11571
429 * New interfaces: pthread_getname_np, pthread_setname_np
431 * New Linux interface: recvmmsg
433 * STT_GNU_IFUNC implemented for Sparc by David Miller.
435 * The dynamic linker now recognizes supported ABI versions from the
436 EI_ABIVERSION field in the ELF header.
437 Implemented by Ulrich Drepper.
439 * New NIS mode selector ADJUNCT_AS_SHADOW. The passwd.adjunct.byname table
440 will not be used to fill in password fields in the passwd.byname replies.
441 Instead it is used to synthesize the shadow.byname table, should it be
442 missing. This is a useful mode in some installations involving Solaris.
443 Implemented by Ulrich Drepper.
445 * New locales: kok_IN, sq_MK, cv_RU
446 \f
447 Version 2.11
449 * The following bugs are resolved with this release:
451 3270, 7094, 9924, 9986, 10011, 10085, 10107, 10159, 10162, 10166, 10183,
452 10195, 10196, 10200, 10203, 10207, 10211, 10213, 10217, 10221, 10229,
453 10262, 10286, 10312, 10315, 10319, 10349, 10360, 10391, 10402, 10416,
454 10418, 10422, 10425, 10446, 10448, 10452, 10540, 10553, 10560, 10564,
455 10609, 10643, 10692, 10713, 10717, 10730, 10731, 10742, 10780, 10784,
456 10789, 10817, 10823, 10840, 10847
458 * New interfaces: execvpe, pthread_sigqueue, mkstemps, mkstemps64, mkostemps,
459 mkostemps64
460 Implemented by Ulrich Drepper.
462 * Checking version of longjmp added that fails if an uninitialized stack
463 frame would be created. Implemented by Ulrich Drepper.
465 * STT_GNU_IFUNC is now supported in static executables.
466 Implemented by H.J. Lu.
468 * STT_GNU_IFUNC implemented for PPC by Alan Modra.
470 * New optimized string functions for x86-64: strstr, strcasestr, memcmp,
471 strcspn, strpbrk, strspn, strcpy, stpcpy, strncpy, strcmp (SSE2, SSE4.2),
472 strncmp (SSE2, SSE4.2), strchr (SSE4.2), strrchr (SSE4.2).
473 Contributed by H.J. Lu.
475 strlen, rawmemchr, strcmp (SSSE3), strncmp (SSSE3).
476 Implemented by Ulrich Drepper.
478 * New optimized string functions for x86: strlen, strcspn, strspn, strpbrk,
479 strstr, strcasestr.
480 Contributed by H.J. Lu.
482 * Support for fma instruction in AVX on x86-64.
483 Implemented by H.J. Lu and Ulrich Drepper.
485 * AVX support in x86-64 auditing support in ld.so.
486 Implemented by H.J. Lu.
488 * STB_GNU_UNIQUE support added.
489 Implemented by Ulrich Drepper.
491 * Implement second fallback mode for optimized DNS lookup for even more
492 broken environments. If two requests from the same port are not
493 handled correctly close the socket and open a new one before sending
494 the second request. The 'single-request-reopen' option in /etc/resolv.conf
495 can be used to select this mode right away, instead of rediscovering the
496 necessity is every process again.
497 Implemented by Ulrich Drepper.
499 * New resolver flag RES_USE_DNSSEC to enable use of verified lookup.
500 Implemented by Adam Tkac.
502 * Optimized iconv conversions for S390x.
503 Implemented by Andreas Krebbel.
505 * Using condvars with PI mutexes is now more efficient due to kernel
506 support for requeueing to PI futexes. NPTL support added for x86-64.
507 Implemented by Ulrich Drepper.
509 * New locales: ps_AF, my_MM
510 \f
511 Version 2.10
513 * The following bugs are resolved with this release:
515 697, 5381, 5807, 6411, 6545, 7040, 7058, 7067, 7080, 7083, 7095, 7098,
516 9677, 9694, 9697, 9701, 9704, 9705, 9706, 9720, 9726, 9730, 9733, 9736,
517 9741, 9750, 9753, 9759, 9781, 9791, 9793, 9823, 9833, 9844, 9880, 9881,
518 9891, 9893, 9895, 9913, 9916, 9920, 9948, 9955, 9957, 9963, 9985, 10052,
519 10069, 10086, 10087, 10090, 10092, 10093, 10100, 10118, 10128
521 * New interfaces: preadv, preadv64, pwritev, pwritev64, malloc_info
522 Implemented by Ulrich Drepper.
524 * New Linux interfaces: accept4, fallocate, fallocate64.
525 Implemented by Ulrich Drepper.
527 * Correct declarations of string function when used in C++ code. This
528 could lead to compile errors for invalid C++ code.
530 * XPG7/POSIX 2008 compilation environment. Many GNU-specific functions are
531 now in POSIX.
533 * New POSIX 2008 interface: psiginfo
534 Implemented by Ulrich Drepper.
536 * New ISO C++1x interfaces: quick_exit, at_quick_exit
537 Implemented by Ulrich Drepper.
539 * Support for selecting between multiple function definitions at runtime
540 using STT_GNU_IFUNC symbols. Implemented by Ulrich Drepper.
542 * The libcrypt library can now use the hash function implementations in
543 NSS. Implemented by Ulrich Drepper.
545 * The malloc implementation can be compiled to be less memory efficient
546 but higher performing in multi-threaded programs.
547 Implemented by Ulrich Drepper.
549 * New locales: nan_TW@latin, ks_IN
551 * Faster strlen, strchr, strchrnul, strrchr, memchr, and rawmemchr for x86-64.
552 Implemented by Ulrich Drepper.
554 * Extended printf hook support. It is possible to use user-defined types
555 and extend existing format specifiers.
556 Implemented by Ulrich Drepper.
558 * Handling for group shadow files has been added.
559 Implemented by Ulrich Drepper.
561 * DNS IPv4-IPv6 parallel lookup now deals better with broken DNS
562 servers (the case, e.g., for some people using the built-in DNS
563 server in ADSL modems/routers). There is a once-per-process timeout
564 in case of a broken server. To avoid it, users can run nscd or put
565 'options single-request' in /etc/resolv.conf.
566 Implemented by Ulrich Drepper.
567 \f
568 Version 2.9
570 * The following bugs are resolved with this release:
572 3406, 5209, 5210, 5381, 5794, 5814, 5911, 6428, 6438, 6442, 6447, 6461,
573 6472, 6505, 6544, 6589, 6612, 6634, 6653, 6654, 6657, 6698, 6712, 6713,
574 6719, 6723, 6724, 6740, 6763, 6771, 6790, 6791, 6817, 6824, 6839, 6843,
575 6845, 6856, 6857, 6860, 6867, 6875, 6919, 6920, 6942, 6947, 6955, 6966,
576 6968, 6974, 6980, 6995, 7008, 7009, 7029
578 * Unified lookup for getaddrinfo: IPv4 and IPv6 addresses are now looked
579 up at the same time. Implemented by Ulrich Drepper.
581 * TLS descriptors for LD and GD on x86 and x86-64.
582 Implemented by Alexandre Oliva.
584 * getaddrinfo now handles DCCP and UDPlite.
585 Implemented by Ulrich Drepper.
587 * New fixed-size conversion macros: htobe16, htole16, be16toh, le16toh,
588 htobe32, htole32, be32toh, le32toh, htobe64, htole64, be64toh, le64toh.
589 Implemented by Ulrich Drepper.
591 * New implementation of memmem, strstr, and strcasestr which is O(n).
592 Implemented by Eric Blake.
594 * New Linux interfaces: inotify_init1, dup3, epoll_create1, pipe2
596 * Implement "e" option for popen to open file descriptor with the
597 close-on-exec flag set. Implemented by Ulrich Drepper.
599 * Implement "b" mode for fmemopen. In this mode writes writes don't
600 implicitly add a NUL byte and seeks from the end of the buffer really
601 use the buffer end, not the string length as the basis.
602 Implemented by Ulrich Drepper.
604 * Many functions, exported and internal, now atomically set the close-on-exec
605 flag when run on a sufficiently new kernel. Implemented by Ulrich Drepper.
607 * Sorting rules for some Indian languages (Kannada, Gurumukhi, Telugu,
608 Sinhala)
609 Implemented by Pravin Satpute.
611 * New locales: sd_IN, sd_IN@devanagari, ks_IN@devanagari, ht_HT, en_AG, nl_AW.
612 \f
613 Version 2.8
615 * The following bugs are resolved with this release:
617 2549, 3112, 4314, 4407, 4997, 5012, 5040, 5112, 5204, 5208, 5209, 5220,
618 5222, 5224, 5225, 5237, 5238, 5240, 5245, 5277, 5346, 5375, 5378, 5382,
619 5424, 5427, 5428, 5435, 5436, 5439, 5441, 5442, 5443, 5451, 5452, 5454,
620 5455, 5463, 5464, 5465, 5475, 5477, 5478, 5520, 5541, 5545, 5553, 5600,
621 5602, 5607, 5614, 5627, 5628, 5736, 5737, 5741, 5753, 5760, 5762, 5768,
622 5774, 5777, 5778, 5779, 5786, 5790, 5818, 5854, 5857, 5903, 5939, 5979,
623 5983, 5995, 5998, 6004, 6007, 6020, 6021, 6024, 6040, 6042
625 * New locales: bo_CN, bo_IN, shs_CA.
627 * New encoding: HP-ROMAN9, HP-GREEK8, HP-THAI8, HP-TURKISH8.
629 * Sorting rules for some Indian languages (Devanagari and Gujarati).
630 Implemented by Pravin Satpute.
632 * IPV6 addresses in /etc/resolv.conf can now have a scope ID
634 * nscd caches now all timeouts for DNS entries
635 Implemented by Ulrich Drepper.
637 * nscd is more efficient and wakes up less often.
638 Implemented by Ulrich Drepper.
640 * More checking functions: asprintf, dprintf, obstack_printf, vasprintf,
641 vdprintf, and obstack_vprintf.
642 Implemented by Jakub Jelinek.
644 * Faster memset for x86-64.
645 Implemented by Harsha Jagasia and H.J. Lu.
647 * Faster memcpy on x86.
648 Implemented by Ulrich Drepper.
650 * ARG_MAX is not anymore constant on Linux. Use sysconf(_SC_ARG_MAX).
651 Implemented by Ulrich Drepper.
653 * Faster sqrt and sqrtf implemention for some PPC variants.
654 Implemented by Steven Munroe.
655 \f
656 Version 2.7
658 * The following bugs are resolved with this release:
660 4125, 4126, 4178, 4359, 4407, 4512, 4514, 4525, 4554, 4556, 4557, 4566,
661 4582, 4586, 4588, 4599, 4610, 4647, 4702, 4705, 4726, 4745, 4772, 4773,
662 4775, 4776, 4792, 4813, 4814, 4816, 4833, 4858, 4860, 4896, 4905, 4925,
663 4936, 4937, 4938, 4941, 4946, 4963, 4972, 5010, 5028, 5043, 5058, 5063,
664 5071, 5103, 5104, 5112, 5113, 5184, 5186
666 * More checking functions: fread, fread_unlocked, open*, mq_open.
667 Implemented by Jakub Jelinek and Ulrich Drepper.
669 * Extend fortification to C++. Implemented by Jakub Jelinek.
671 * Implement 'm' modifier for scanf. Add stricter C99/SUS compliance
672 by not recognizing 'a' as a modifier when those specs are requested.
673 Implemented by Jakub Jelinek.
675 * PPC optimizations to math and string functions.
676 Implemented by Steven Munroe.
678 * New interfaces: mkostemp, mkostemp64. Like mkstemp* but allow additional
679 options to be passed. Implemented by Ulrich Drepper.
681 * More CPU set manipulation functions. Implemented by Ulrich Drepper.
683 * New Linux interfaces: signalfd, eventfd, eventfd_read, and eventfd_write.
684 Implemented by Ulrich Drepper.
686 * Handle private futexes in the NPTL implementation.
687 Implemented by Jakub Jelinek and Ulrich Drepper.
689 * Add support for O_CLOEXEC. Implement in Hurd. Use throughout libc.
690 Implemented by Roland McGrath and Ulrich Drepper.
692 * Linux/x86-64 vDSO support. Implemented by Ulrich Drepper.
694 * SHA-256 and SHA-512 based password encryption.
695 Implemented by Ulrich Drepper.
697 * New locales: ber_DZ, ber_MA, en_NG, fil_PH, fur_IT, fy_DE, ha_NG, ig_NG,
698 ik_CA, iu_CA, li_BE, li_NL, nds_DE, nds_NL, pap_AN, sc_IT, tk_TM, ug_CN,
699 yo_NG.
701 + New iconv modules: MAC-CENTRALEUROPE, ISO-8859-9E, KOI8-RU.
702 Implemented by Ulrich Drepper.
703 \f
704 Version 2.6
706 * The following bugs are resolved with this release:
708 3156, 3213, 3285, 3291, 3306, 3313, 3320, 3322, 3325, 3326, 3334, 3348,
709 3352, 3363, 3369, 3426, 3427, 3429, 3451, 3458, 3465, 3480, 3483, 3493,
710 3514, 3515, 3559, 3632, 3664, 3673, 3674, 3745, 3747, 3818, 3840, 3842,
711 3851, 3855, 3884, 3885, 3902, 3905, 3919, 3944, 3954, 3955, 3957, 3991,
712 3995, 3996, 4024, 4040, 4069, 4070, 4074, 4076, 4096, 4101, 4102, 4114,
713 4130, 4131, 4181, 4276, 4306, 4342, 4344, 4349, 4364, 4368, 4381, 4392,
714 4403, 4405, 4406, 4411, 4438, 4439, 4455, 4456, 4465, 4512, 4514, 4586,
715 4702, 4858
717 * New Linux interfaces: epoll_pwait, sched_getcpu.
719 * New generic interfaces: strerror_l.
721 * nscd can now cache the services database. Implemented by Ulrich Drepper.
722 \f
723 Version 2.5
725 * The following bugs are resolved with this release:
727 39, 68, 192, 352, 388, 531, 935, 1006, 1201, 1203, 1386, 1782, 1783, 1784,
728 1785, 1786, 1787, 1951, 1974, 1996, 2072, 2098, 2125, 2134, 2158, 2182,
729 2349, 2376, 2386, 2389, 2415, 2418, 2420, 2423, 2450, 2451, 2466, 2472,
730 2473, 2477, 2498, 2499, 2501, 2502, 2505, 2507, 2508, 2509, 2517, 2526,
731 2569, 2571, 2592, 2611, 2625, 2632, 2644, 2662, 2680, 2683, 2684, 2693,
732 2695, 2703, 2734, 2751, 2764, 2766, 2775, 2792, 2821, 2823, 2832, 2841,
733 2843, 2883, 2892, 2908, 2914, 2926, 2961, 2978, 2980, 2987, 2997, 2998,
734 3013, 3018, 3034, 3040, 3044, 3123, 3124, 3137, 3138, 3143, 3155, 3189,
735 3225, 3251, 3252, 3253, 3273
737 * For Linux, the sorting of addresses returned by getaddrinfo now also
738 handles rules 3, 4, and 7 from RFC 3484. I.e., all rules are handled.
739 Implemented by Ulrich Drepper.
741 * Allow system admin to configure getaddrinfo with the /etc/gai.conf file.
742 Implemented by Ulrich Drepper.
744 * New Linux interfaces: splice, tee, sync_file_range, vmsplice.
746 * New iconv module for MIK. Contributed by Alexander Shopov.
748 * For sites with broken group and/or passwd database, the auto-propagate
749 option of nscd can prevent creating ID lookup entries from the results
750 of a name lookup and vice versa. This usually is no problem but some
751 site might have problems with the default behavior.
752 Implemented by Ulrich Drepper.
754 * Iterating over entire database in NIS can be slow. With the
755 SETENT_BATCH_READ option in /etc/default/nss a system admin can decide
756 to trade time for memory. The entire database will be read at once.
757 Implemented by Ulrich Drepper.
759 * The interfaces introduced in RFC 3542 have been implemented by
760 Ulrich Drepper.
762 * Support for the new ELF hash table format was added by Ulrich Drepper.
764 * Support for priority inheritance mutexes added by Jakub Jelinek and
765 Ulrich Drepper.
767 * Support for priority protected mutexes added by Jakub Jelinek.
769 * New locales: nr_ZA, pa_PK, ca_AD, ca_FR, ca_IT, el_CY, tr_CY, as_IN,
770 or_IN, csb_PL, fy_NL, sr_ME.
771 \f
772 Version 2.4
774 * More overflow detection functions.
776 * New iconv converters for IBM1025, IBM1122, IBM1137, IBM1153,
777 IBM1154, IBM1155, IBM1156, IBM1157, and IBM1158 contributed by Jiro Sekiba.
779 More converters for IBM803, IBM901, IBM902, IBM921, IBM1008, IBM1097,
780 IBM1112, IBM1123, IBM1130, IBM1140, IBM1141, IBM1142, IBM1143, IBM1144,
781 IBM1145, IBM1146, IBM1147, IBM1148, IBM1149, IBM1166, IBM1167, IBM4517,
782 IBM4899, IBM4909, IBM4971, IBM5347, IBM9030, IBM9066, IBM9448, IBM12712,
783 IBM16804, IBM1364, IBM1371, IBM1388, IBM1390, and IBM1399 contributed
784 by Masahide Washizawa.
786 * It is now possible to install audit libraries for the dynamic linker using
787 LD_AUDIT. Implemented by Ulrich Drepper.
789 * The LinuxThreads add-on, providing pthreads on Linux 2.4 kernels, is no
790 longer supported. The new NPTL implementation requires Linux 2.6 kernels.
791 For a libc and libpthread that works well on Linux 2.4 kernels, we
792 recommend using the stable 2.3 branch.
794 * The new function open_wmemstream acts like open_memstream,
795 but uses a wchar_t wide character buffer.
797 * The new function ppoll is an improved version of poll, similar to pselect.
799 * New interfaces: fdopendir, openat, fstatat, fchmodat, fchownat,
800 futimesat, faccessat, mkdirat, mkfifoat, mknodat,
801 renameat, unlinkat, linkat, symlinkat, readlinkat.
803 * New Linux kernel system calls: unshare,
804 inotify_init, inotify_add_watch, inotify_rm_watch.
806 * The euidaccess function is now also known by the alias eaccess,
807 for compatibility with some other systems.
809 * Timezone data updated to 2006b version.
810 \f
811 Version 2.3.6
813 * The following bugs are resolved with this release:
815 38, 253, 549, 622, 653, 721, 758, 851, 877, 915, 934, 955, 961,
816 1016, 1037, 1076, 1079, 1080, 1081, 1082, 1083, 1084, 1085, 1086,
817 1087, 1088, 1090, 1091, 1092, 1093, 1094, 1095, 1096, 1097, 1098,
818 1099, 1100, 1101, 1102, 1103, 1104, 1105, 1106, 1107, 1108, 1109,
819 1110, 1111, 1112, 1113, 1125, 1137, 1138, 1249, 1250, 1251, 1252,
820 1253, 1254, 1350, 1358, 1394, 1438, 1498, 1534
822 Visit <http://sources.redhat.com/bugzilla/> for the details of each bug.
824 * As of this release, GCC 4 can be used to compile the C Library.
826 * Timezone data updated to 2005m version.
827 \f
828 Version 2.3.5
830 * The following bugs are resolved with this release:
832 284, 592, 602, 626, 633, 640, 650, 661, 671, 681, 693, 700, 710, 719,
833 722, 723, 725, 726, 727, 728, 729, 730, 731, 732, 733, 734, 735, 736,
834 737, 738, 739, 740, 741, 742, 743, 744, 745, 765, 767, 768, 769, 776,
835 777, 787, 821, 822, 823, 825
837 Visit <http://sources.redhat.com/bugzilla/> for the details of each bug.
838 \f
839 Version 2.3.4
841 * Support for RFC 3678. Real implementations exist only for Linux so far.
842 Implemented by Ulrich Drepper.
844 * nscd can now cache entries persistently. Expiring entries are reloaded.
845 For speedups the cache can be shared in memory with client processes.
846 Implemented by Ulrich Drepper.
848 * nscd can now perform SELinux checks.
849 Implemented by Matthew Rickard <mjricka@epoch.ncsc.mil>.
851 * getaddrinfo queries are now cached. Canonical name lookup is performed
852 efficiently.
853 Implemented by Ulrich Drepper.
855 * The nothrow function attribute is used when headers are used by gcc when
856 compiling C code. This can avoid significant amounts of exception
857 handling data.
859 * The malloc functions perform more error checking and are stricter when
860 it comes to reacting on errors. The default action is to terminate
861 the process after showing an error message. Implemented by Ulrich Drepper.
863 * Reverse lookups of IPv6 addresses does not use bit string or .ip6.int
864 lookups anymore unless explicitly requested. Implemented by Ulrich Drepper.
866 * Namespaces in ld.so are implemented. DSOs can be loaded in separate
867 namespaces using the new function dlmopen(). This feature is of course,
868 like most other dynamic loading functionality, not available in statically
869 linked applications. Implemented by Ulrich Drepper.
871 * Low-overhead boundary checking variants of string and some stdio functions
872 were added. These are to be used in conjunction with a gcc patch by
873 Jakub Jelinek which adds calls to these functions if possible.
874 Implemented by Jakub Jelinek and Ulrich Drepper.
876 * Old code for several operating systems and machine architectures that
877 have not been in working condition in a long time have been removed from
878 the main source tree maintained by the GNU C Library's maintainers.
879 These files are now reside in the separate `ports' source module
880 that is usable as an add-on when building the library.
881 \f
882 Version 2.3.3
884 * New functions `dladdr1' and `dlinfo' in <dlfcn.h> provide more ways to
885 interrogate the dynamic linker, compatible with the Solaris interface.
887 * ELF thread-local storage support (TLS) now works on PowerPC and PowerPC64;
888 implemented by Paul Mackerras, Steven Munroe, and Roland McGrath.
890 * getifaddrs now uses the netlink interface on Linux to get its information.
891 Implemented by Thorsten Kukuk.
893 * getaddrinfo now implements AI_V4MAPPED, AI_ALL, and AI_ADDRCONF.
894 Implemented by Ulrich Drepper.
896 * support for non-executable stacks on x86 has been added. Changes mostly
897 by Roland McGrath.
899 * regex is now much faster for multibyte locales. Changes by Jakub Jelinek
900 and Ulrich Drepper.
902 * getaddrinfo now performs destination address selection according to
903 RFC 3484.
904 \f
905 Version 2.3.2
907 * Thread-safe interfaces for many functions that access locale data
908 were added in version 2.3, but these features were omitted from NEWS.
909 Many functions have variants with an `_l' suffix that take a `locale_t'
910 object as a parameter rather than consulting the current locale.
911 The new functions `newlocale', `duplocale', and `freelocale' in <locale.h>
912 create and maintain `locale_t' objects. Additionally, the new function
913 `uselocale' sets "the current locale" (as used by functions not so
914 parameterized) set for an individual thread. These features were added
915 in version 2.3, implemented by Ulrich Drepper and Roland McGrath.
917 * The functions getresuid, getresgid, setresuid, and setresgid, which
918 have long been available on Linux, are now declared in <unistd.h>
919 and are now also available on the Hurd.
921 * ELF thread-local storage support (TLS) now works on x86-64.
923 * The new dynamic string token $LIB is expanded in shared library names.
924 This normally expands to lib, but on some 64-bit platforms to lib64 instead.
926 * Aldy Hernandez contributed complete software floating point support for
927 PowerPC machines with no FPU.
929 * fexecve is implemented on Linux.
931 * The `btowc' function should work at least twice as fast due to
932 specialized callbacks in the iconv modules. Implemented by Bruno Haible.
934 * With approriate thread add-ons cancelable functions are now implemented
935 in libc.so as well. No need to call the function in libpthread. This
936 change allowed to finally disable the incorrect and expensive handling
937 of weak definition in ld.so.
939 * Yet more PLT entries in libc.so have been removed. We finally arrived
940 at the bare minimum. Startup times improved appropriately.
942 * Support for the new Linux/x86 system call interface was added. The
943 AT_SYSINFO auxiliary vector entry is recognized and handled.
944 \f
945 Version 2.3
947 * Masahide Washizawa contributed iconv modules for IBM1163 and IBM1164
948 charsets.
950 * iconv (the program and the interface) now accepts empty names (excluding
951 options like //TRANSLIT) to mean "use charset of current locale".
953 * localedef can now transliterate characters in strings which are not in
954 the provided charmap. The information from the input locale is used.
956 * Prelinking support was added for ELF targets. This requires additional
957 tools and recent versions of the GNU binutils. Contributed by Jakub Jelinek.
959 * Read-only stdio streams now use mmap to speed up operation by eliminating
960 copying and buffer underflows. To use add 'm' to the mode string of
961 the fopen/fdopen/freopen call. Implemented by Ulrich Drepper.
963 * The malloc functions were completely rewritten by Wolfram Gloger based
964 on Doug Lea's malloc-2.7.0.c.
966 * Isamu Hasegawa contributed a completely new and POSIX-conformant
967 implementation of regex.
969 * Bruno Haible upgraded the iconv and locale implementation to support
970 Unicode 3.2.
972 * Contents of the LC_* and LANG environment variables in the CEN style are
973 not recognized anymore. It never was used. Change by Ulrich Drepper.
975 * The runtime (ld.so, libc, libpthread for Linux) now can handle the ELF
976 thread-local storage (TLS) ABI on some platforms.
977 Changes by Ulrich Drepper. SH support by Kaz Kojima.
979 * Bruno Haible contributed iconv converters for ISO-2022-JP-3, SHIFT JIS-X0213,
980 EUC-JISX0213, and TSCII.
982 * New header <ifaddrs.h> with functions `getifaddrs' and `freeifaddrs':
983 BSD-compatible interface for getting all network interface addresses.
984 Implementation for IPv4 by Roland McGrath.
986 * Loading of locale data is faster due to the introduction of a locale
987 archive. Implemented by Roland McGrath and Ulrich Drepper.
989 * Startup times are significantly reduced by not using exported functions
990 inside the library itself. Changes by Jakub Jelinek, Roland McGrath,
991 and Ulrich Drepper.
993 * Steven Munroe contributed a port to PowerPC64/Linux.
994 \f
995 Version 2.2.6
997 * The Hurd now uses the GNU libio implementation of stdio rather than the
998 old GNU stdio implementation, and uses a new ABI (libc.so.0.3).
1000 * The Hurd on x86 now has the `ioperm' function and <sys/io.h> header file
1001 with the same behavior as the Linux system call of the same name.
1002 \f
1003 Version 2.2.5
1005 * Stephen Moshier implemented log2, log10, powl and cbrtl for the
1006 128-bit long double format.
1008 * Masahide Washizawa contributed iconv modules for IBM1132, IBM1133, IBM1160,
1009 IBM1161, and IBM1162 charsets.
1011 * Andreas Jaeger contributed a port to x86-64/Linux.
1013 * Peter Bruin contributed a port to PowerPC/Hurd.
1015 * libc functions using I/O streams now can handle wide-oriented streams
1016 as well.
1018 * optimizations in the dynamic linker. Binaries created by recent binutils
1019 versions start up quicker due to reduced time spent on relocations.
1021 * Support for use of gcc3 added by Jakub Jelinek and HJ Lu.
1022 \f
1023 Version 2.2.4
1025 * Stephen Moshier implemented cosh, expm1, log1p, acos, sinh, tanh,
1026 asinh, atanh, j0 for the 128-bit long double format.
1028 * Bruno Haible updated all the code handling Unicode in some form to
1029 support Unicode 3.1.
1031 * Speed of regex for single-byte locales is back to previous levels.
1032 Patch by Isamu Hasegawa.
1034 * Alpha, SPARC, and IA-64 now also using floating stacks.
1036 * Startup time of internationalized applications greatly improved through
1037 iconv cache. Use iconvconfig to generate the cache file.
1038 Contributed by Ulrich Drepper.
1040 * The IA-64 specific part of ld.so was rewritten to eliminate some pretty
1041 severe performance problems. Patch by David Mosberger.
1043 * The Hurd port got a lot more functionality like AIO, various stdio
1044 extensions, etc. Mainly done by Roland McGrath.
1046 * mtrace can now lookup symbols in shared libraries.
1047 \f
1048 Version 2.2.3
1050 * Intel's IA-64 math library is largely integrated. It provides fast and
1051 accurate implementatations for most basic and standard math functions
1052 in float, double, and long double format.
1054 * Stephen Moshier implemented j0, j1, jn, y0, y1, yn, lgamma, erf, erfc,
1055 and asin for the 96-bit long double format and asin, log, tan for the
1056 128-bit long double format.
1058 * The beginning of a last-bit accurate math library by IBM Haifa were added.
1059 The basic double functions exist today. Contributed by Abraham Ziv
1060 <ziv@il.ibm.com>, Moshe Olshansky <olshansk@il.ibm.com>, Ealan Henis
1061 <ealan@il.ibm.com>, and Anna Reitman <reitman@il.ibm.com>.
1063 * An asynchronous name lookup library was added. The interface is designed
1064 after POSIX AIO. The proposal was circulated beforehand to get comments.
1065 No negative ones came in. Implemented by Ulrich Drepper.
1067 * Port to S390/64bit contributed by Martin Schwidefsky
1068 <schwidefsky@de.ibm.com>.
1070 * David Mosberger <davidm@hpl.hp.com> implemented the setcontext family
1071 of functions for Linux/IA-64.
1073 * The RPC code is now thread safe. Threads can now use the same service
1074 of different services at the same time. Patch by Eric Norum
1075 <eric.norum@usask.ca> with some help by Ulrich Drepper.
1077 * Martin Schwidefsky <schwidefsky@de.ibm.com> implemented the setcontext
1078 family of functions for Linux/S390.
1080 * Ulrich Drepper <drepper@redhat.com> implemented the setcontext family
1081 of functions for Linux/x86.
1083 * Port to Linux/CRIS contributed by Axis Communications.
1084 \f
1085 Version 2.2.2
1087 * Lots of headers were cleaned up. Using the tool in the conform/ subdir
1088 we can now check for namespace violations and missing declarations. The
1089 result is that almost all headers are now Unix-compliant (as defined in
1090 the upcoming XPG6). The negative side is that some programs might need
1091 corrections, too, if they depend on the incorrect form of the headers in
1092 previous versions which defined too many symbols and included too many
1093 other headers.
1095 * regex now handles multibyte character sets correctly.
1096 Contributed by Isamu Hasegawa <isamu@yamato.ibm.com>.
1098 * iconv (the program) does now conform to the upcoming XPG6 and handles
1099 charmaps. Instead of the charset names the path of charmaps can be
1100 provided and the conversion happens based on this data.
1101 Contributed by Ulrich Drepper.
1103 * The locale program now provides detailed information about the installed
1104 locales. While
1106 locale -a
1108 only lists the names of the supported locales
1110 locale -a --verbose
1112 provides details such as country, language, and codeset name.
1113 Contributed by Ulrich Drepper.
1114 \f
1115 Version 2.2.1
1117 * The gencat program now parses the input file according to the charset
1118 selected by the LC_CTYPE category. This is important for stateful
1119 character sets. To make generating catalogs easier there is a way
1120 to overwrite the charset selected by the locale: before the first
1121 message or $ quote line the catalog can contain a line like
1123 $ codeset=ISO-8859-2
1125 to select the charset (ISO-8859-2 in this case).
1127 Implemented by Shinya Hanataka and Ulrich Drepper.
1129 * New codeset conversion modules: IBM-922 (Estonia PC codeset),
1130 IBM-1124 (Ukraine PC codeset), IBM-1129 (Vietnamese PC codeset).
1131 Contributed by Masahide Washizawa <washi@jp.ibm.com>.
1133 * Optimized string functions for Alpha ev6 and ev67 by Richard Henderson
1134 <rth@redhat.com> and Rick Gorton <rick.gorton@alpha-processor.com>.
1136 * The LANGUAGE environment variable is now ignored unless the locale is
1137 changed from the default "C" locale.
1139 * The usual bug fixes.
1140 \f
1141 Version 2.2
1143 * Greg McGary added runtime support for bounds checking using gcc's
1144 new -fbounded-pointers option. ix86 target is complete. PowerPC
1145 is in progress.
1147 * Thorsten Kukuk added secure mode support to nscd.
1149 * The Berkeley db libraries have been removed.
1151 Related, the nss_db module is now in a separate package since it
1152 obviously requires a database library being available.
1154 * Wide character I/O streams implemented by Ulrich Drepper.
1156 * Functions from the extended socket API added by Ulrich Drepper.
1158 * Functions feenableexcept and fedisableexcept to control the
1159 behaviour of individual exceptions have been added by Andreas Jaeger.
1161 * ldconfig program added by Andreas Jaeger and Jakub Jelinek.
1163 * The resolver code has been updated from bind 8.2.3-T5B which supports
1164 threads. The integration was done by Andreas Jaeger, Adam D. Bradley,
1165 and Mark Kettenis.
1167 This change could in some situations effect backward compatibility. Since
1168 now `_res' is a thread-local instead of a global variable, modifying it
1169 in one thread does not have any effect in other threads.
1171 The resolver library was also extended to allow IPv6 as the transport
1172 protocol for the requests. This work was done by Stig Venaas.
1174 * Compatibility code for K&R C compilers has been removed from the
1175 header files. A ISO C compiler is needed to use the library
1176 (conforming to either C89 or C99 standard).
1178 * Complete rewrite of the localedef program to support multibyte character
1179 sets. Implement handling of ISO 14651 and ISO 14652. Rewrite strcoll,
1180 strxfrm, wcscoll, and wcsxfrm functions. Make isw*() functions work.
1181 Implemented by Ulrich Drepper.
1183 Bruno Haible significantly improved the generation and use of the data
1184 structures for the wide character tables.
1186 * Plural handling in gettext implemented by Ulrich Drepper.
1188 * The utmp daemon has been removed.
1190 * The port to MIPS-Linux has been finished by Andreas Jaeger.
1192 * A port to Hitachi SH3 and SH4 has been contributed by Kazumoto Kojima
1193 and Yutaka Niibe.
1195 * POSIX clocks and timers implemented by Kaz Kylheku and Ulrich Drepper.
1197 * POSIX barriers implemented by Kaz Kylheku.
1199 * POSIX spawn function family implemented by Ulrich Drepper.
1201 * POSIX spinlocks are now available.
1203 * Timed wait functions for mutex, rwlock, and semaphores are implemented.
1205 * the configure option --enable-kernel=X.Y.Z allows to strip out
1206 compatibility for kernel versions before X.Y.Z. This is currently only
1207 implemented for Linux.
1209 * the sockaddr_in6 structure changed. The IPv6 working group added a new
1210 field sin6_scope_id. This means that all programs using IPv6 should be
1211 recompiled. Don't expect binary compatibility with previous glibc
1212 versions.
1214 * various conversion modules for IBM character sets contributed by
1215 Masahide Washizawa.
1217 * IA-64 port by Jes Sorensen and HJ Lu.
1218 \f
1219 Version 2.1.3
1221 * bug fixes
1223 \f
1224 Version 2.1.2
1226 * bug fixes
1228 \f
1229 Version 2.1.1
1231 * New ISO C 9x function _Exit, imaxabs, and imaxdiv are added.
1233 * New xdr functions are added; some rpc functions are now 64bit clean.
1235 * Fixed a number of bugs and memory leaks (especially in NIS+ code).
1237 * Fixed known incompatibilities with glibc 2.0.
1239 * New functions lock64, strchrnul, rawmemchr, getutmp and getutmpx.
1241 * Optimized a number of functions (especially the ELF dynamic loader).
1243 * Update timezone data files.
1245 * lots of charmaps corrections
1247 * some new locale definitions and charmaps
1249 \f
1250 Version 2.1
1252 * Richard Henderson corrected size of struct timeval on Linux/Alpha to
1253 conform to POSIX member type requirements. Symbol versions have been
1254 adjusted as needed within the library, and for direct use by applications,
1255 but there is potential for problems if third-party libraries use
1256 struct timeval as part of their interface. This does not present
1257 a problem for X and other "essential" system libraries.
1259 * An additional locale model to support C++ Standard Library locale
1260 model and probably more was implemented by Ulrich Drepper.
1262 * Eric Youngdale and Ulrich Drepper implemented versioning of objects on
1263 symbol level.
1265 * Miles Bader provided the `argp' function family to support hierachical
1266 command line argument parsing, layered on top of getopt.
1268 * strtod accepts new hexadecimal floating-point format from ISO C 9X.
1270 * printf has two new specifiers %a and %A to print hexadecimal flaoting-point
1271 numbers.
1273 * scanf recognizes the %a and %A format for scanning floating point numbers.
1275 * the new headers <stdint.h> and <inttypes.h> from ISO C 9X provides
1276 information and interfaces for the available integer types.
1278 * about 130 new math functions were added to implement the ISO C9x math
1279 library.
1281 * the new header <complex.h> contains definitions of the complex math
1282 functions from ISO C 9X.
1284 * the new header <tgmath.h> defines generic macros to use complex or
1285 real valued functions.
1287 * Thorsten Kukuk provided an implementation for NIS+, securelevel 0, 1 and 2.
1289 * Andreas Jaeger provided a test suite for the math library.
1291 * Mark Kettenis implemented the utmpx interface and an utmp daemon.
1293 * Ulrich Drepper added character set conversion functions (iconv).
1295 * Optimized string functions have been added.
1297 * The localedata addon is now part of glibc.
1299 * An implementation of profiling shared libraries was added by Ulrich Drepper.
1301 * Thorsten Kukuk and Ulrich Drepper provided an implementation for a caching
1302 daemon for NSS (nscd).
1304 Missing a better place here are some numbers on improvements. Under
1305 Linux 2.1.125 un-tar-ing the kernel sources takes
1307 user system wall
1309 using local files 12.19s 6.88s 22.91s
1311 using NIS 13.92s 8.91s 26.34s
1313 using NIS & nscd 10.37s 7.34s 25.30s
1315 using NIS+ 27.57s 30.37s 640.46s
1317 using NIS+ & nscd 10.25s 7.83s 26.51s
1319 using NIS & old nscd [1] 13.83s 8.32s 29.60s
1321 Keep in mind that non-namelookup related operations dominate above times.
1322 It was just a common complain that using NIS+ unpacking the kernel is
1323 horribly slow.
1325 [1] The old nscd implementation is not available anymore since it was
1326 distributed with glibc up to version 2.0.98 and thus is now replaced.
1328 * Tim Waugh provided an implementation of the POSIX.2 wordexp function family.
1330 * Mark Kettenis provided a Hesiod NSS module.
1332 * The ELF dynamic loader knows how to process dynamic string tokens ($ORIGIN
1333 and $PLATFORM) in RPATHs and similar strings (Ulrich Drepper).
1335 * rcmd can now handle netgroups (Dick Streefland).
1337 * A port to the ARM was contributed by Phil Blundell, Pat Beirne and Scott
1338 Bambrough.
1340 * Support for the IPv6 protocol has been added to the socket API, as per the
1341 latest draft standards.
1343 * Support for Linux 2.2 has been added.
1345 * Interface changes relative to the latest 2.0.x release:
1346 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1347 addseverity NEW: Unix98
1348 alphasort64 NEW: LFS
1349 argp_err_exit_status NEW: argp, GNU ext
1350 argp_error NEW: argp, GNU ext
1351 argp_failure NEW: argp, GNU ext
1352 argp_help NEW: argp, GNU ext
1353 argp_parse NEW: argp, GNU ext
1354 argp_program_bug_address NEW: argp, GNU ext
1355 argp_program_version NEW: argp, GNU ext
1356 argp_program_version_hook NEW: argp, GNU ext
1357 argp_state_help NEW: argp, GNU ext
1358 argp_usage NEW: argp, GNU ext
1359 authdes_create NEW: Secure RPC
1360 authdes_getucred NEW: Secure RPC
1361 authdes_pk_create NEW: Secure RPC
1362 backtrace NEW: GNU ext.
1363 backtrace_symbols NEW: GNU ext.
1364 backtrace_symbols_fd NEW: GNU ext.
1365 cacos NEW: ISO C 9x
1366 cacosf NEW: ISO C 9x
1367 cacosh NEW: ISO C 9x
1368 cacoshf NEW: ISO C 9x
1369 cacoshl NEW: ISO C 9x
1370 cacosl NEW: ISO C 9x
1371 capget NEW: kernel
1372 capset NEW: kernel
1373 carg NEW: ISO C 9x
1374 cargf NEW: ISO C 9x
1375 cargl NEW: ISO C 9x
1376 casin NEW: ISO C 9x
1377 casinf NEW: ISO C 9x
1378 casinh NEW: ISO C 9x
1379 casinhf NEW: ISO C 9x
1380 casinhl NEW: ISO C 9x
1381 casinl NEW: ISO C 9x
1382 catan NEW: ISO C 9x
1383 catanf NEW: ISO C 9x
1384 catanh NEW: ISO C 9x
1385 catanhf NEW: ISO C 9x
1386 catanhl NEW: ISO C 9x
1387 catanl NEW: ISO C 9x
1388 cbc_crypt NEW: Secure RPC
1389 ccos NEW: ISO C 9x
1390 ccosf NEW: ISO C 9x
1391 ccosh NEW: ISO C 9x
1392 ccoshf NEW: ISO C 9x
1393 ccoshl NEW: ISO C 9x
1394 ccosl NEW: ISO C 9x
1395 cexp NEW: ISO C 9x
1396 cexpf NEW: ISO C 9x
1397 cexpl NEW: ISO C 9x
1398 cimag NEW: ISO C 9x
1399 cimagf NEW: ISO C 9x
1400 cimagl NEW: ISO C 9x
1401 clearerr_locked REMOVED
1402 clntunix_create NEW: sunrpc ext
1403 clog NEW: ISO C 9x
1404 clog10 NEW: ISO C 9x
1405 clog10f NEW: ISO C 9x
1406 clog10l NEW: ISO C 9x
1407 clogf NEW: ISO C 9x
1408 clogl NEW: ISO C 9x
1409 conj NEW: ISO C 9x
1410 conjf NEW: ISO C 9x
1411 conjl NEW: ISO C 9x
1412 cpow NEW: ISO C 9x
1413 cpowf NEW: ISO C 9x
1414 cpowl NEW: ISO C 9x
1415 cproj NEW: ISO C 9x
1416 cprojf NEW: ISO C 9x
1417 cprojl NEW: ISO C 9x
1418 creal NEW: ISO C 9x
1419 crealf NEW: ISO C 9x
1420 creall NEW: ISO C 9x
1421 creat64 NEW: LFS
1422 csin NEW: ISO C 9x
1423 csinf NEW: ISO C 9x
1424 csinh NEW: ISO C 9x
1425 csinhf NEW: ISO C 9x
1426 csinhl NEW: ISO C 9x
1427 csinl NEW: ISO C 9x
1428 csqrt NEW: ISO C 9x
1429 csqrtf NEW: ISO C 9x
1430 csqrtl NEW: ISO C 9x
1431 ctan NEW: ISO C 9x
1432 ctanf NEW: ISO C 9x
1433 ctanh NEW: ISO C 9x
1434 ctanhf NEW: ISO C 9x
1435 ctanhl NEW: ISO C 9x
1436 ctanl NEW: ISO C 9x
1437 des_setparity NEW: Secure RPC
1438 ecb_crypt NEW: Secure RPC
1439 endutxent NEW: Unix98
1440 exp10 NEW: ISO C 9x
1441 exp10f NEW: ISO C 9x
1442 exp10l NEW: ISO C 9x
1443 exp2 NEW: ISO C 9x
1444 exp2f NEW: ISO C 9x
1445 exp2l NEW: ISO C 9x
1446 fattach NEW: STREAMS
1447 fdetach NEW: STREAMS
1448 fdim NEW: ISO C 9x
1449 fdimf NEW: ISO C 9x
1450 fdiml NEW: ISO C 9x
1451 feclearexcept NEW: ISO C 9x
1452 fegetenv NEW: ISO C 9x
1453 fegetexceptflag NEW: ISO C 9x
1454 fegetround NEW: ISO C 9x
1455 feholdexcept NEW: ISO C 9x
1456 feof_locked REMOVED
1457 feraiseexcept NEW: ISO C 9x
1458 ferror_locked REMOVED
1459 fesetenv NEW: ISO C 9x
1460 fesetexceptflag NEW: ISO C 9x
1461 fesetround NEW: ISO C 9x
1462 fetestexcept NEW: ISO C 9x
1463 feupdateenv NEW: ISO C 9x
1464 fflush_locked REMOVED
1465 ffsl NEW: GNU ext.
1466 ffsll NEW: GNU ext.
1467 fgetpos64 NEW: LFS
1468 fgets_unlocked NEW: GNU ext.
1469 fileno_locked REMOVED
1470 fma NEW: ISO C 9x
1471 fmaf NEW: ISO C 9x
1472 fmal NEW: ISO C 9x
1473 fmax NEW: ISO C 9x
1474 fmaxf NEW: ISO C 9x
1475 fmaxl NEW: ISO C 9x
1476 fmin NEW: ISO C 9x
1477 fminf NEW: ISO C 9x
1478 fminl NEW: ISO C 9x
1479 fmtmsg NEW: Unix98
1480 fopen64 NEW: LFS
1481 fputc_locked REMOVED
1482 fputs_unlocked NEW: GNU ext.
1483 fread_unlocked NEW: GNU ext.
1484 freopen64 NEW: LFS
1485 fseeko NEW: Unix98
1486 fsetpos64 NEW: LFS
1487 fstatfs64 NEW: LFS
1488 fstatvfs NEW: Unix98
1489 fstatvfs64 NEW: LFS
1490 ftello NEW: Unix98
1491 ftello64 NEW: LFS
1492 ftruncate64 NEW: LFS
1493 ftw64 NEW: LFS
1494 fwrite_unlocked NEW: GNU ext.
1495 gai_strerror NEW: IPv6
1496 gamma_r REMOVED
1497 gammaf_r REMOVED
1498 gammal_r REMOVED
1499 getchar_locked REMOVED
1500 getdate NEW: Unix98
1501 getdate_err NEW: Unix98
1502 getdate_r NEW: GNU ext.
1503 getmsg NEW: STREAMS
1504 getnameinfo NEW: IPv6
1505 getnetname NEW: Secure RPC
1506 getpmsg NEW: STREAMS
1507 getpt NEW: Unix98 PTY
1508 getrlimit64 NEW: LFS
1509 getutxent NEW: Unix98
1510 getutxid NEW: Unix98
1511 getutxline NEW: Unix98
1512 glob64 NEW: GNU ext.
1513 globfree64 NEW: GNU ext.
1514 gnu_get_libc_release NEW: GNU ext.
1515 gnu_get_libc_version NEW: GNU ext.
1516 grantpt NEW: Unix98 PTY
1517 host2netname NEW: Secure RPC
1518 iconv NEW: iconv
1519 iconv_close NEW: iconv
1520 iconv_open NEW: iconv
1521 if_freenameindex NEW: IPv6
1522 if_indextoname NEW: IPv6
1523 if_nameindex NEW: IPv6
1524 if_nametoindex NEW: IPv6
1525 in6addr_any NEW: IPv6
1526 in6addr_loopback NEW: IPv6
1527 inet6_isipv4mapped NEW: IPv6
1528 isastream NEW: STREAMS
1529 iswblank NEW: GNU ext.
1530 key_decryptsession NEW: Secure RPC
1531 key_decryptsession_pk NEW: Secure RPC
1532 key_encryptsession NEW: Secure RPC
1533 key_encryptsession_pk NEW: Secure RPC
1534 key_gendes NEW: Secure RPC
1535 key_get_conv NEW: Secure RPC
1536 key_secretkey_is_set NEW: Secure RPC
1537 key_setnet NEW: Secure RPC
1538 key_setsecret NEW: Secure RPC
1539 llrint NEW: ISO C 9x
1540 llrintf NEW: ISO C 9x
1541 llrintl NEW: ISO C 9x
1542 llround NEW: ISO C 9x
1543 llroundf NEW: ISO C 9x
1544 llroundl NEW: ISO C 9x
1545 log2 NEW: ISO C 9x
1546 log2f NEW: ISO C 9x
1547 log2l NEW: ISO C 9x
1548 lrint NEW: ISO C 9x
1549 lrintf NEW: ISO C 9x
1550 lrintl NEW: ISO C 9x
1551 lround NEW: ISO C 9x
1552 lroundf NEW: ISO C 9x
1553 lroundl NEW: ISO C 9x
1554 lseek64 NEW: LFS
1555 makecontext NEW: Unix98
1556 mempcpy NEW: GNU ext.
1557 mmap64 NEW: LFS
1558 moncontrol REMOVED
1559 modify_ldt NEW: kernel
1560 nan NEW: ISO C 9x
1561 nanf NEW: ISO C 9x
1562 nanl NEW: ISO C 9x
1563 nearbyint NEW: ISO C 9x
1564 nearbyintf NEW: ISO C 9x
1565 nearbyintl NEW: ISO C 9x
1566 netname2host NEW: Secure RPC
1567 netname2user NEW: Secure RPC
1568 nexttoward NEW: ISO C 9x
1569 nexttowardf NEW: ISO C 9x
1570 nexttowardl NEW: ISO C 9x
1571 nftw NEW: Unix98
1572 nftw64 NEW: LFS
1573 open64 NEW: LFS
1574 passwd2des NEW: Secure RPC
1575 pow10 NEW: GNU ext.
1576 pow10f NEW: GNU ext.
1577 pow10l NEW: GNU ext.
1578 pread NEW: Unix98
1579 pread64 NEW: LFS
1580 printf_size NEW: GNU ext.
1581 printf_size_info NEW: GNU ext.
1582 profil_counter REMOVED
1583 pthread_mutexattr_getkind_np REPLACED
1584 pthread_mutexattr_setkind_np REPLACED
1585 ptsname NEW: Unix98 PTY
1586 ptsname_r NEW: Unix98 PTY
1587 putc_locked REMOVED
1588 putchar_locked REMOVED
1589 putgrent NEW: GNU ext.
1590 putmsg NEW: STREAMS
1591 putpmsg NEW: STREAMS
1592 pututxline NEW: Unix98
1593 pwrite NEW: Unix98
1594 pwrite64 NEW: LFS
1595 readdir64 NEW: LFS
1596 readdir64_r NEW: LFS
1597 remquo NEW: ISO C 9x
1598 remquof NEW: ISO C 9x
1599 remquol NEW: ISO C 9x
1600 round NEW: ISO C 9x
1601 roundf NEW: ISO C 9x
1602 roundl NEW: ISO C 9x
1603 rtime NEW: GNU ext.
1604 scalbln NEW: ISO C 9x
1605 scalblnf NEW: ISO C 9x
1606 scalblnl NEW: ISO C 9x
1607 scandir64 NEW: LFS
1608 sendfile NEW: kernel
1609 setcontext NEW: Unix98
1610 setrlimit64 NEW: LFS
1611 setutxent NEW: Unix98
1612 sighold NEW: Unix98
1613 sigignore NEW: Unix98
1614 sigqueue NEW: POSIX.1b
1615 sigrelse NEW: Unix98
1616 sigset NEW: POSIX.1b
1617 sigtimedwait NEW: POSIX.1b
1618 sigwaitinfo NEW: POSIX.1b
1619 sincos NEW: GNU ext.
1620 sincosf NEW: GNU ext.
1621 sincosl NEW: GNU ext.
1622 statfs64 NEW: LFS
1623 statvfs NEW: Unix98
1624 statvfs64 NEW: LFS
1625 strcasestr NEW: GNU ext.
1626 strtoimax NEW: ISO C 9x
1627 strtoumax NEW: ISO C 9x
1628 strverscmp NEW: GNU ext.
1629 svcauthdes_stats NEW: Secure RPC
1630 svcunix_create NEW: sunrpc etx
1631 svcunixfd_create NEW: sunrpc ext
1632 swapcontext NEW: Unix98
1633 tcgetsid NEW: Unix98 PTY
1634 tdestroy NEW: GNU ext.
1635 tgamma NEW: ISO C 9x
1636 tgammaf NEW: ISO C 9x
1637 tgammal NEW: ISO C 9x
1638 tmpfile64 NEW: LFS
1639 trunc NEW: ISO C 9x
1640 truncate64 NEW: LFS
1641 truncf NEW: ISO C 9x
1642 truncl NEW: ISO C 9x
1643 umount2 NEW: kernel
1644 unlockpt NEW: Unix98 PTY
1645 updwtmpx NEW: Unix98
1646 user2netname NEW: Secure RPC
1647 utmpxname NEW: Unix98
1648 versionsort NEW: GNU ext.
1649 versionsort64 NEW: GNU ext.
1650 waitid NEW: Unix98
1651 wcscasecmp NEW: GNU ext.
1652 wcsncasecmp NEW: GNU ext.
1653 wcsnlen NEW: GNU ext.
1654 wcstoimax NEW: ISO C 9x
1655 wcstoll NEW: ISO C 9x
1656 wcstoull NEW: ISO C 9x
1657 wcstoumax NEW: ISO C 9x
1658 wcswcs NEW: Unix98
1659 wordexp NEW: POSIX.2
1660 wordfree NEW: POSIX.2
1661 write_profiling REMOVED
1662 xdecrypt NEW: Secure RPC
1663 xdr_authdes_cred NEW: Secure RPC
1664 xdr_authdes_verf NEW: Secure RPC
1665 xdr_cryptkeyarg NEW: Secure RPC
1666 xdr_cryptkeyarg2 NEW: Secure RPC
1667 xdr_cryptkeyres NEW: Secure RPC
1668 xdr_getcredres NEW: Secure RPC
1669 xdr_key_netstarg NEW: Secure RPC
1670 xdr_key_netstres NEW: Secure RPC
1671 xdr_keybuf NEW: Secure RPC
1672 xdr_keystatus NEW: Secure RPC
1673 xdr_netnamestr NEW: Secure RPC
1674 xdr_sizeof NEW: Secure RPC
1675 xdr_unixcred NEW: sunrpc ext
1676 xencrypt NEW: Secure RPC
1677 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1678 \f
1679 Version 2.0.6
1681 * more bug fixes
1683 \f
1684 Version 2.0.5
1686 * more bug fixes
1688 * inet_ntoa is thread-safe
1690 * updwtmp is moved from libutil to libc
1692 * rewrite of cbrt function
1694 * update of timezone data
1695 \f
1696 Version 2.0.4
1698 * more bug fixes
1699 \f
1700 Version 2.0.3
1702 * more bug fixes
1703 \f
1704 Version 2.0.2
1706 * more bug fixes
1708 * add atoll function
1710 * fix complex problems in Berkeley DB code
1712 * fix math functions
1713 \f
1714 Version 2.0.1
1716 * fixed lots of header problems (especially Linux/GNU specific)
1718 * dynamic loader preserves all registers
1720 * Roland McGrath provided support for handling of auxiliary objects in
1721 the ELF dynamic loader.
1723 * support for parallel builds is improved
1724 \f
1725 Version 2.0
1727 * GNU extensions are no longer declared by default. To enable them you
1728 must define the macro `_GNU_SOURCE' in your program or compile with
1729 `-D_GNU_SOURCE'.
1731 * The library has changed from using GNU ld symbol aliases to using weak
1732 symbols where available. The ELF object file format supports weak
1733 symbols; GNU ld also supports weak symbols in the a.out format. (There
1734 is also now support for other GNU ld extensions in ELF. Use the
1735 `--with-elf' option to configure to indicate you have ELF, and
1736 `--with-gnu-ld' if using GNU ld.) This change resulted in the deletion
1737 of many files which contained only symbol aliases, reducing the size of
1738 the source and the compiled library; many other files were renamed to
1739 less cryptic names previously occupied by the symbol alias files.
1740 There is a new header file <elf.h> for programs which operate on
1741 files in the ELF format.
1743 * Converted to Autoconf version 2, so `configure' has more options.
1744 Run `configure --help' to see the details.
1746 * The library can now be configured to build profiling, highly-optimized
1747 (but undebuggable), and/or shared libraries (ELF with GNU ld only). The
1748 `--enable-profile', `--enable-omitfp', and `--enable-shared' options to
1749 `configure' enable building these extra libraries. The shared library is
1750 built by default when using both ELF and GNU ld. When shared libraries
1751 are enabled, the new library `-ldl' is available for arbitrary run-time
1752 loading of shared objects; its interface is defined in <dlfcn.h>. The
1753 new header file <link.h> gives access to the internals of the run-time
1754 dynamic linker, `ld.so'. The shell script `ldd' is similar to the
1755 application of same name on other systems and it provides information
1756 about dynamically linked binaries.
1758 * The C library now provides the run-time support code for profiling
1759 executables compiled with `-pg'. Programs can control the profiling code
1760 through the interface in <sys/gmon.h>. The `gmon.out' files written by
1761 the GNU C library can be read only by GNU `gprof' (from GNU binutils);
1762 the support for this file format was contributed by David Mosberger-Tang.
1764 * The math code has been replaced with a math library based on fdlibm from
1765 Sun, and modified by JT Conklin and Ulrich Drepper with i387 support, by
1766 Ian Taylor with `float' functions and by Ulrich Drepper with `long double'
1767 functions. The math functions now reside in a separate library, so
1768 programs using them will need to use `-lm' their linking commands.
1770 * John C. Bowman contributed optimized ix87 assembler inline functions.
1772 * Ulrich Drepper has contributed support for an `/etc/nsswitch.conf'
1773 mechanism similar to that found in Solaris 2. This is now used for the
1774 group, passwd, hosts, networks, services, protocols, rpc, ethers,
1775 shadow, netgroup, publickey, and alias databases. The `nsswitch.conf'
1776 file controls what services are used for each individual database. This
1777 works by loading shared libraries with names specified in `nsswitch.conf',
1778 so service modules can be changed or added at any time without even
1779 relinking any program. Currently there are the file, db, and NIS based
1780 NSS services available.
1782 * The new functions `strtoq' and `strtouq' parse integer values from
1783 strings, like `strtol' and `strtoul', but they return `long long int' and
1784 `unsigned long long int' values, respectively (64-bit quantities).
1786 * The new functions `strtof' and `strtold' parse floating-point values from
1787 strings, like `strtod', but they return `float' and `long double' values,
1788 respectively (on some machines `double' and `long double' are the same).
1790 * Ulrich Drepper has contributed new implementations of the floating-point
1791 printing and reading code used in the `printf' family of functions and
1792 `strtod', `strtof', and `strtold'. These new functions are perfectly
1793 accurate, and much faster than the old ones.
1795 * The implementation of the POSIX locale model was completely rewritten by
1796 Ulrich Drepper. This includes the new programs `localedef' and `locale'
1797 to compile the POSIX locale definition.
1799 * The former dummy implementations of the strcoll and strxfrm function are
1800 now replaced by fully functional code contributed by Ulrich Drepper. The
1801 collation information comes from the POSIX locale definitions.
1803 * The new header <langinfo.h> defines an interface for accessing
1804 various locale-dependent data (using the locale chosen with `setlocale').
1806 * Ulrich Drepper has contributed a new suite of functions for operation on
1807 wide-character and multibyte-character strings, in <wchar.h>;
1808 and classification and case conversion of wide characters, in <wctype.h>.
1809 These new functions are conforming to the ISO C, Amendement 1 specification.
1811 * There is now a second implementation of the standard I/O library available.
1812 It comes from GNU libg++ as was written by Per Bothner, heavily modified
1813 by Hongjiu Lu and made thread safe by Ulrich Drepper.
1815 * You can now use positional parameter specifications in format strings
1816 for the `printf' and `scanf' families of functions. For example,
1817 `printf ("Number %2$d, Mr %1$s\n", "Jones", 6);'' prints
1818 ``Number 6, Mr Jones''. This is mainly useful when providing different
1819 format strings for different languages, whose grammars may dictate
1820 different orderings of the values being printed. To support this
1821 feature, the interface for `register_printf_handler' has changed; see
1822 the header file <printf.h> for details.
1824 * The `printf' and `scanf' families of functions now understand a new
1825 formatting flag for numeric conversions: the ' flag (e.g. %'d or %'f) says
1826 to group numbers as indicated by the locale; for `scanf' and friends, this
1827 says to accept as valid only a number with all the proper grouping
1828 separators in the right places. In the default "C" locale, numbers are
1829 not grouped; but locales for specific countries will define the usual
1830 conventions (i.e. separate thousands with `,' in the US locale).
1832 * The pgrp functions have been regularized, slightly incompatibly but much
1833 less confusingly. The core functions are now `getpgid' and `setpgid',
1834 which take arguments for the PID to operate on; the POSIX.1 `getpgrp' (no
1835 argument) and BSD `setpgrp' (identical to `setpgid') functions are
1836 provided for compatibility. There is no longer an incompatible `getpgrp'
1837 with an argument declared under _BSD_SOURCE; no BSD code uses it.
1839 * The new header file <fts.h> and suite of functions simplify programs that
1840 operate on directory trees. This code comes from 4.4 BSD.
1842 * The resolver code has been updated from the BIND 4.9.5-P1 release.
1843 Parts of the code were heavily modified by Ulrich Drepper to fit in the
1844 NSS scheme used in glibc.
1846 * There is a new malloc debugging hook `__memalign_hook'.
1848 * There are new typedefs `ushort' for `unsigned short int' and `uint' for
1849 `unsigned int' in <sys/types.h>. These are for compatibility only and
1850 their use is discouraged.
1852 * The `-lmcheck' library to enable standard malloc debugging hooks is now
1853 done differently, so that it works even without GNU ld.
1855 * New function `euidaccess' checks allowed access to a file like `access',
1856 but using the effective IDs instead of the real IDs.
1858 * The time zone data files have been updated for the latest and greatest
1859 local time conventions of the countries of the world.
1861 * The new function `dirfd' extracts the file descriptor used by a DIR stream;
1862 see <dirent.h>.
1864 * The new functions `ecvt', `fcvt', and `gcvt' provide an obsolete interface
1865 for formatting floating-point numbers. They are provided only for
1866 compatibility; new programs should use `sprintf' instead. There are
1867 also equivalent function for the `long double' floating-point type and
1868 all functions also exist in a reentrant form.
1870 * The new auxiliary library `-lutil' from 4.4 BSD contains various
1871 functions for maintaining the login-record files (primarily of use to
1872 system programs such as `login'), and convenient functions for
1873 allocating and initializing a pseudo-terminal (pty) device.
1875 * Ulrich Drepper has contributed new support for System V style
1876 shared memory and IPC on systems that support it.
1878 * Ulrich Drepper has contributed several miscellaneous new functions found
1879 in System V: The `hsearch' family of functions provide an effective
1880 implementation of hash tables; `a64l' and `l64a' provide a very simple
1881 binary to ASCII mapping; `drand48' and friends provide a 48-bit random
1882 number generator.
1884 * Ulrich Drepper has contributed new reentrant counterparts for the
1885 `random' and `hsearch' families of functions; `random_r', `hsearch_r', etc.
1887 * Ulrich Drepper has contributed new, highly-optimized versions of several
1888 string functions for the i486/Pentium family of processors.
1890 * Ulrich Drepper has updated the Linux-specific code, based largely
1891 on work done in Hongjiu Lu's version of GNU libc for Linux.
1892 The GNU library now supports Linux versions 2.0.10 and later,
1893 using the ELF object file format (i[3456]86-*-linux).
1895 * Andreas Schwab has ported the C library to Linux/m68k (m68k-*-linux).
1897 * David Mosberger-Tang and Richard Henderson have ported the C library
1898 to Linux/Alpha (alpha-*-linux). Richard Henderson contributed the
1899 dynamic linking support for ELF/Alpha.
1901 * Richard Henderson contributed several Alpha optimized assembler function
1902 for arithmetic and string handling.
1904 * Ulrich Drepper has contributed a new set of message catalog functions to
1905 support multiple languages using the <libintl.h> interface, for use with
1906 his new package GNU gettext. Translation volunteers have contributed
1907 catalogs of the library's messages in Spanish, German, and Korean.
1909 * For compatibility with XPG4, Ulrich Drepper has contributed the `gencat'
1910 program and the `catgets' function for reading the catalog files it
1911 creates. (The <libintl.h> interface is preferred; we include the
1912 <nl_types.h> interface using `catgets' only for source compatibility with
1913 programs already written to use it.)
1915 * New header file <values.h> gives SVID-compatible names for <limits.h>
1916 constants.
1918 * Various new macros, declarations, and small header files for compatibility
1919 with 4.4 BSD.
1921 * New function `group_member' is a convenient way to check if a process has
1922 a given effective group ID.
1924 * When using GCC 2.7 and later, the socket functions are now declared in a
1925 special way so that passing an argument of type `struct sockaddr_in *',
1926 `struct sockaddr_ns *', or `struct sockaddr_un *' instead of the generic
1927 `struct sockaddr *' type, does not generate a type-clash warning.
1929 * New function `error' declared in header file <error.h> is a convenient
1930 function for printing error messages and optionally exiting; this is the
1931 canonical function used in GNU programs. The new functions `err', `warn',
1932 and friends in header file <err.h> are the canonical 4.4 BSD interface for
1933 doing the same thing.
1935 * The <glob.h> interface has several new flags from 4.4 BSD that extend the
1936 POSIX.2 `glob' function to do ~ and {...} expansion.
1938 * New function `unsetenv' complements `setenv' for compatibility with 4.4 BSD.
1939 `clearenv' which is used in POSIX.9 is also available.
1941 * New function `getsid' returns session ID number on systems that support it.
1943 * We have incorporated the 4.4 BSD `db' library (version 1.85). New header
1944 files <db.h> and <mpool.h> provide a rich set of functions for several
1945 types of simple databases stored in memory and in files, and <ndbm.h> is
1946 an old `ndbm'-compatible interface using the `db' functions. Link with
1947 `-ldb' to get these functions.
1949 * New macro `strdupa' copies a string like `strdup', but uses local stack
1950 space from `alloca' instead of dynamic heap space from `malloc'.
1952 * New function `strnlen' is like `strlen' but searches only a given maximum
1953 number of characters for the null terminator. `stpncpy', `strndup' and
1954 `strndupa' are similar variants for the `stpcpy', `strdup' and `strdupa'
1955 function.
1957 * New function `statfs' in header <sys/statfs.h>.
1959 * The new <argz.h> and <envz.h> interfaces contributed by Miles Bader
1960 provide convenient functions for operating on blocks of null-terminated
1961 strings.
1963 * A new suite of functions in <utmp.h> handle all the details of reading
1964 and writing the utmp file.
1966 * An implementation of the NIS/YP(tm) based NSS service was contributed by
1967 Thorsten Kukuk.
1969 * Paul Eggert and Ulrich Drepper modified the `strftime' function to be
1970 completely POSIX compliant and also implemented the extended functionality
1971 to handle alternate digit representation and alternate era date formats.
1973 * Ulrich Drepper provided an implementation of the `strptime' function
1974 defined in XPG4.2 which transforms a string into a `struct tm' value.
1976 * Paul Eggert provided the tzselect shell script as part of the timezone
1977 code. The shell script makes it easy to select the correct timezone
1978 specification.
1980 * The implementation of the malloc family of functions is completely replaced
1981 by a new implementation by Doug Lea with many improvements by Wolfram Gloger.
1982 The implementation uses the mmap function (if available) and it is
1983 optimized for the use in multi threaded programs.
1985 * Ulrich Drepper contributed a MD5 "encryption" for the crypt family of
1986 functions. This new functionality is usable by specifying a special
1987 salt string and it is compatible with implementation on *BSD systems.
1989 * Lots of functions from the XPG4.2 standard were added by Ulrich Drepper:
1990 `getsubopt' to handle second level command line options, `bsd_signal'
1991 to access BSD style `signal' functionality, the obsolete `regexp' style
1992 expression matcher.
1994 * the `lchown' function is available on system which support this
1995 functionality.
1997 * The implementation of the shadow password handling function was contributed
1998 by Ulrich Drepper.
2000 * David Mosberger-Tang changed the SunRPC implementation to be 64bit safe.
2002 * POSIX.1g support was added. The <sys/select.h> header is available,
2003 `isfdtype' and `pselect' are implemented. Craig Metz contributed an
2004 implementation of `getaddrinfo'.
2005 \f
2006 Version 1.09
2008 * For cross-compilation you should now set `BUILD_CC' instead of `HOST_CC'.
2010 * New header file <fstab.h> and new functions `getfsspec', `getfsent' and
2011 friends, for parsing /etc/fstab. This code comes from 4.4 BSD.
2013 * The new function `daemon' from 4.4 BSD is useful for server programs that
2014 want to put themselves in the background.
2016 * Joel Sherrill has contributed support for several standalone boards that
2017 run without an operating system.
2019 * `printf', `scanf' and friends now accept a `q' type modifier for long
2020 long int as well as `ll'. Formats using these might be `%qu' or `%lld'.
2022 * All of the code taken from BSD (notably most of the math and networking
2023 routines) has been updated from the BSD 4.4-Lite release.
2025 * The resolver code has been updated from the BIND-4.9.3-BETA9 release.
2027 * The new functions `getdomainname' and `setdomainname' fetch or change the
2028 YP/NIS domain name. These are system calls which exist on systems which
2029 have YP (aka NIS).
2031 * The time zone data files have been updated for the latest international
2032 conventions.
2034 * The SunRPC programs `portmap' and `rpcinfo' are now installed in
2035 $(sbindir) (usually /usr/local/sbin) instead of $(bindir).
2036 \f
2037 Version 1.08
2039 * The C library now includes support for Sun RPC, from Sun's free
2040 RPCSRC-4.0 distribution. The `portmap', `rpcinfo', and `rpcgen' programs
2041 are included. (There is still no support for YP.)
2043 * Tom Quinn has contributed a port of the C library to SGI machines running
2044 Irix 4 (mips-sgi-irix4).
2046 * The new `lockf' function is a simplified interface to the locking
2047 facilities of `fcntl', included for compatibility.
2049 * New time functions `timegm', `timelocal', and `dysize' for compatibility.
2051 * New header file <sys/timeb.h> and new function `ftime' for compatibility.
2053 * New header files <poll.h> and <sys/poll.h> and new function `poll' for
2054 compatibility.
2056 * The error message printed by `assert' for a failed assertion now includes
2057 the name of the program (if using GNU ld) and the name of the calling
2058 function (with versions of GCC that support this).
2060 * The `psignal' function is now declared in <signal.h>, not <stdio.h>.
2062 * The library now includes the <sys/mman.h> header file and memory
2063 management functions `mmap', `munmap', `mprotect', `msync', and
2064 `madvise', on systems that support those facilities.
2066 * The interface for `mcheck' has changed slightly: the function called to
2067 abort the program when an allocation inconsistency is detected now takes
2068 an argument that indicates the type of failure. The new function
2069 `mprobe' lets you request a consistency check for a particular block at
2070 any time (checks are normally done only when you call `free' or `realloc'
2071 on a block).
2073 * It is now possible to easily cross-compile the C library, building on one
2074 system a library to run on another machine and/or operating system. All
2075 you need to do is set the variable `HOST_CC' in `configparms' to the
2076 native compiler for programs to run on the machine you are building on (a
2077 few generator programs are used on Unix systems); set `CC' to the
2078 cross-compiler.
2080 * The new function `fexecve' (only implemented on the GNU system) executes
2081 a program file given a file descriptor already open on the file.
2082 \f
2083 Version 1.07
2085 * Brendan Kehoe has contributed most of a port to the DEC Alpha
2086 running OSF/1 (alpha-dec-osf1). He says it is 75% complete.
2088 * You can set the variable `libprefix' in `configparms' to specify a prefix
2089 to be prepended to installed library files; this makes it easy to install
2090 the GNU C library to be linked as `-lgnuc' or whatever.
2092 * The new `stpncpy' is a cross between `stpcpy' and `strncpy': It
2093 copies a limited number of characters from a string, and returns the
2094 address of the last character written.
2096 * You no longer need to check for whether the installed `stddef.h' is
2097 compatible with the GNU C library. configure now checks for you.
2099 * You can now define a per-stream `fileno' function to convert the
2100 stream's cookie into an integral file descriptor.
2102 * ``malloc (0)'' no longer returns a null pointer. Instead, it
2103 allocates zero bytes of storage, and returns a unique pointer which
2104 you can pass to `realloc' or `free'. The behavior is undefined if
2105 you dereference this pointer.
2107 * The C library now runs on Sony NEWS m68k machines running either
2108 NewsOS 3 or NewsOS 4.
2110 * The new `syscall' function is a system-dependent primitive function
2111 for invoking system calls. It has the canonical behavior on Unix
2112 systems, including unreliable return values for some calls (such as
2113 `pipe', `fork' and `getppid').
2115 * The error code `EWOULDBLOCK' is now obsolete; it is always defined
2116 to `EAGAIN', which is the preferred name. On systems whose kernels
2117 use two distinct codes, the C library now translates EWOULDBLOCK to
2118 EAGAIN in every system call function.
2119 \f
2120 Version 1.06
2122 * The GNU C Library Reference Manual is now distributed with the library.
2123 `make dvi' will produce a DVI file of the printed manual.
2124 `make info' will produce Info files that you can read on line using C-h i
2125 in Emacs or the `info' program.
2126 Please send comments on the manual to bug-glibc-manual@gnu.org.
2128 * The library now supports SVR4 on i386s (i386-unknown-sysv4).
2130 * Brendan Kehoe has contributed a port to Sun SPARCs running Solaris 2.
2132 * Jason Merrill has contributed a port to the Sequent Symmetry running
2133 Dynix version 3 (i386-sequent-dynix).
2135 * The library has been ported to i386s running SCO 3.2.4 (also known as SCO
2136 ODT 2.0; i386-unknown-sco3.2.4) or SCO 3.2 (i386-unknown-sco3.2).
2138 * New function `memory_warnings' lets you arrange to get warnings when
2139 malloc is running out of memory to allocate, like Emacs gives you.
2141 * The C library now contains the relocating allocator used in Emacs 19 for
2142 its editing buffers. This allocator (ralloc) minimizes allocation
2143 overhead and fragmentation by moving allocated regions around whenever it
2144 needs to. You always refer to a ralloc'd region with a "handle" (a
2145 pointer to a pointer--an object of type `void **').
2147 * There is a new `printf' format: `%m' gives you the string corresponding
2148 to the error code in `errno'.
2150 * In `scanf' formats, you can now use `%as' or `%a[' to do the normal `%s'
2151 or `%[' conversion, but instead of filling in a fixed-sized buffer you
2152 pass, the `a' modifier says to fill in a `char **' you pass with a
2153 malloc'd string.
2155 * The `fnmatch' function supports the new flag bits `FNM_LEADING_DIR' and
2156 `FNM_CASEFOLD'. `FNM_LEADING_DIR' lets a pattern like `foo*' match a
2157 name like `foo/bar'. `FNM_CASEFOLD' says to ignore case in matching.
2159 * `mkstemp' is a traditional Unix function to atomically create and open a
2160 uniquely-named temporary file.
2161 \f
2162 Version 1.05
2164 * The standard location for the file that says what the local timezone is
2165 has changed again. It is now `/usr/local/etc/localtime' (or more
2166 precisely, `${prefix}/etc/localtime') rather than `/etc/localtime'.
2168 * The distribution no longer contains any files with names longer than 14
2169 characters.
2171 * `struct ttyent' has two new flag bits: TTY_TRUSTED and TTY_CONSOLE.
2172 These are set by the new `trusted' and `console' keywords in `/etc/ttys'.
2174 * New functions `ttyslot' and `syslog' from 4.4 BSD.
2175 \f
2176 Version 1.04
2178 * The configuration process has changed quite a bit. The `configure'
2179 script is now used just like the configuration scripts for other GNU
2180 packages. The `sysdeps' directory hierarchy is much rearranged.
2181 The file `INSTALL' explains the new scheme in detail.
2183 * The header files no longer need to be processed into ANSI C and
2184 traditional C versions. There is just one set of files to install, and
2185 it will work with ANSI or old C compilers (including `gcc -traditional').
2187 * Brendan Kehoe and Ian Lance Taylor have ported the library to the
2188 MIPS DECStation running Ultrix 4.
2190 * The Sun 4 startup code (crt0) can now properly load SunOS 4 shared libraries.
2191 Tom Quinn contributed the initial code. The GNU C library can NOT yet be
2192 made itself into a shared library.
2194 * Yet further improved support for the i386, running 4.3 BSD-like systems
2195 (such as Mach 3 with the Unix single-server), or System V.
2197 * New function `strncasecmp' to do case-insensitive string comparison
2198 with limited length.
2200 * New function `strsep' is a reentrant alternative to `strtok'.
2202 * New functions `scandir' and `alphasort' for searching directories.
2204 * New function `setenv' is a better interface to `putenv'.
2206 * Ian Lance Taylor has contributed an implementation of the SVID `ftw'
2207 function for traversing a directory tree.
2209 * The GNU obstack package is now also part of the C library.
2210 The new function `open_obstack_stream' creates a stdio stream that
2211 writes onto an obstack; `obstack_printf' and `obstack_vprintf' do
2212 formatted output directly to an obstack.
2214 * Miscellaneous new functions: reboot, nice, sigaltstack (4.4 BSD only),
2215 cfmakeraw, getusershell, getpass, swab, getttyent, seteuid, setegid.
2217 * `FNM_FILE_NAME' is another name for `FNM_PATHNAME', used with `fnmatch'.
2219 * The new functions `strfry' and `memfrob' do mysterious and wonderful
2220 things to your strings.
2222 * There are some new test programs: test-fseek, testmb, and testrand.
2224 * Some work has been done to begin porting the library to 4.4 BSD and Linux.
2225 These ports are not finished, but are a good starting place for really
2226 supporting those systems.
2228 * `/etc/localtime' is now the standard location for the file that says what
2229 the local timezone is, rather than `/usr/local/lib/zoneinfo/localtime'.
2230 This follows the general principle that `/etc' is the place for all local
2231 configuration files.
2233 * The C library header files now use `extern "C"' when used by the C++
2234 compiler, so the C library should now work with C++ code.
2236 * The header file <bstring.h> is gone. <string.h> now declares bcopy,
2237 bcmp, bzero, and ffs. (Update: nowadays these functions are declared
2238 in <strings.h>.)
2240 * Mike Haertel (of GNU e?grep and malloc fame) has written a new sorting
2241 function which uses the `merge sort' algorithm, and is said to be
2242 significantly faster than the old GNU `qsort' function. Merge sort is
2243 now the standard `qsort' function. The new algorithm can require a lot
2244 of temporary storage; so, the old sorting function is called when the
2245 required storage is not available.
2247 * The C library now includes Michael Glad's Ultra Fast Crypt, which
2248 provides the Unix `crypt' function, plus some other entry points.
2250 * The code and header files taken from 4.4 BSD have been updated with the
2251 latest files released from Berkeley.
2252 \f
2253 ----------------------------------------------------------------------
2254 Copyright information:
2256 Copyright (C) 1992-2013 Free Software Foundation, Inc.
2258 Permission is granted to anyone to make or distribute verbatim copies
2259 of this document as received, in any medium, provided that the
2260 copyright notice and this permission notice are preserved,
2261 thus giving the recipient permission to redistribute in turn.
2263 Permission is granted to distribute modified versions
2264 of this document, or of portions of it,
2265 under the above conditions, provided also that they
2266 carry prominent notices stating who last changed them.
2267 \f
2268 Local variables:
2269 version-control: never
2270 fill-column: 76
2271 End: