| blob | eceea11b99b242a95c030239fedd0e4f755ac6ea |
1 GNU C Library NEWS -- history of user-visible changes.
2 Copyright (C) 1992-2013 Free Software Foundation, Inc.
3 See the end for copying conditions.
5 Please send GNU C library bug reports via <http://sourceware.org/bugzilla/>
6 using `glibc' in the "product" field.
7 \f
8 Version 2.19
10 * The following bugs are resolved with this release:
12 14155, 14699, 15427, 15522, 15531, 15532, 15736, 15749, 15797, 15867,
13 15886, 15887, 15890, 15897, 15905, 15909, 15921.
15 * CVE-2013-4237 The readdir_r function could write more than NAME_MAX bytes
16 to the d_name member of struct dirent, or omit the terminating NUL
17 character. (Bugzilla #14699).
19 * New locales: quz_PE.
21 * Add country_car field to LC_ADDRESS, many locales.
23 * Update iso-1427.def and related occurrences.
25 \f
26 Version 2.18
28 * The following bugs are resolved with this release:
30 2546, 2560, 5159, 6809, 7006, 10060, 10062, 10283, 10357, 10686, 11120,
31 11561, 12310, 12387, 12492, 12515, 12723, 13550, 13889, 13951, 13988,
32 14142, 14176, 14200, 14256, 14280, 14293, 14317, 14327, 14478, 14496,
33 14582, 14686, 14812, 14888, 14894, 14907, 14908, 14909, 14920, 14952,
34 14964, 14981, 14982, 14985, 14991, 14994, 14996, 15000, 15003, 15006,
35 15007, 15014, 15020, 15022, 15023, 15036, 15054, 15055, 15062, 15078,
36 15084, 15085, 15086, 15100, 15160, 15214, 15221, 15232, 15234, 15283,
37 15285, 15287, 15304, 15305, 15307, 15309, 15327, 15330, 15335, 15336,
38 15337, 15339, 15342, 15346, 15359, 15361, 15366, 15380, 15381, 15394,
39 15395, 15405, 15406, 15409, 15416, 15418, 15419, 15423, 15424, 15426,
40 15429, 15431, 15432, 15441, 15442, 15448, 15465, 15480, 15485, 15488,
41 15490, 15492, 15493, 15497, 15506, 15529, 15536, 15553, 15577, 15583,
42 15618, 15627, 15631, 15654, 15655, 15666, 15667, 15674, 15711, 15755,
43 15759.
45 * CVE-2013-2207 Incorrectly granting access to another user's pseudo-terminal
46 has been fixed by disabling the use of pt_chown (Bugzilla #15755).
47 Distributions can re-enable building and using pt_chown via the new configure
48 option `--enable-pt_chown'. Enabling the use of pt_chown carries with it
49 considerable security risks and should only be used if the distribution
50 understands and accepts the risks.
52 * CVE-2013-0242 Buffer overrun in regexp matcher has been fixed (Bugzilla
53 #15078).
55 * CVE-2013-1914 Stack overflow in getaddrinfo with many results has been
56 fixed (Bugzilla #15330).
58 * Add support for calling C++11 thread_local object destructors on thread
59 and program exit. This needs compiler support for offloading C++11
60 destructor calls to glibc.
62 * Improved worst case performance of libm functions with double inputs and
63 output.
65 * Support for priority inherited mutexes in pthread condition variables on
66 non-x86 architectures.
68 * Port to Xilinx MicroBlaze contributed by David Holsgrove.
70 * Optimized string functions for AArch64. Implemented by Marcus Shawcroft.
72 * Optimized string functions for ARM. Implemented by Will Newton and
73 Richard Henderson.
75 * Optimized libm functions for SPARC. Implemented by David S. Miller.
77 * Support for building more of ARM glibc as Thumb-2 code. Implemented by
78 Richard Henderson.
80 * Support for building most of MIPS glibc as MIPS16 code. Implemented by
81 Chung-Lin Tang, Maciej W. Rozycki and Maxim Kuvyrkov.
83 * Added a benchmark framework to track performance of functions in glibc.
85 * New <math.h> macro named issignaling to check for a signaling NaN (sNaN).
86 It is based on draft TS 18661 and currently enabled as a GNU extension.
88 * On Linux, the clock function now uses the clock_gettime system call
89 for improved precision, rather than old times system call.
91 * Added new API functions pthread_getattr_default_np and
92 pthread_setattr_default_np to get and set the default pthread
93 attributes of a process.
95 * Added support for TSX lock elision for pthread mutexes on i386 and x86-64.
96 This may improve lock scaling of existing programs on TSX capable systems.
97 When the --enable-lock-elision=yes parameter is specified at configure
98 time lock elision will be enabled by default for all PTHREAD_MUTEX_DEFAULT
99 mutexes.
101 * Support added for AT_HWCAP2 (to coincide with Linux kernel 3.10
102 availability). Implemented by Ryan S. Arnold.
104 * Support added for POWER8 platform. Implemented by Ryan S. Arnold.
105 \f
106 Version 2.17
108 * The following bugs are resolved with this release:
110 1349, 3439, 3479, 3665, 5044, 5246, 5298, 5400, 6530, 6677, 6778, 6808,
111 9685, 9914, 10014, 10038, 10114, 10191, 10631, 10873, 11438, 11607, 11638,
112 11741, 12140, 13013, 13412, 13542, 13601, 13603, 13604, 13629, 13679,
113 13696, 13698, 13717, 13741, 13759, 13761, 13763, 13881, 13939, 13950,
114 13952, 13966, 14042, 14047, 14090, 14150, 14151, 14152, 14154, 14157,
115 14166, 14173, 14195, 14197, 14237, 14246, 14251, 14252, 14283, 14298,
116 14303, 14307, 14328, 14331, 14336, 14337, 14347, 14349, 14368, 14376,
117 14417, 14447, 14459, 14476, 14477, 14501, 14505, 14510, 14516, 14518,
118 14519, 14530, 14532, 14538, 14543, 14544, 14545, 14557, 14562, 14568,
119 14576, 14579, 14583, 14587, 14595, 14602, 14610, 14621, 14638, 14645,
120 14648, 14652, 14660, 14661, 14669, 14672, 14683, 14694, 14716, 14719,
121 14743, 14767, 14783, 14784, 14785, 14793, 14796, 14797, 14801, 14803,
122 14805, 14807, 14811, 14815, 14821, 14822, 14824, 14828, 14831, 14833,
123 14835, 14838, 14856, 14863, 14865, 14866, 14868, 14869, 14871, 14872,
124 14879, 14889, 14893, 14898, 14914.
126 * Optimization of memcpy for MIPS.
128 * CVE-2011-4609 svc_run() produces high cpu usage when accept fails with
129 EMFILE has been fixed (Bugzilla #14889).
131 * The add-on ports collection is now distributed in the "ports" subdirectory
132 of the main GNU C Library distribution, rather than separately.
134 * Port to ARM AArch64 contributed by Linaro.
136 * Support for STT_GNU_IFUNC symbols added for s390 and s390x.
137 Optimized versions of memcpy, memset, and memcmp added for System z10 and
138 zEnterprise z196.
139 Implemented by Andreas Krebbel.
141 * The new function secure_getenv allows secure access to the environment,
142 returning NULL if running in a SUID/SGID process. This function replaces
143 the internal function __secure_getenv.
145 * SystemTap static probes have been added into the dynamic linker.
146 Implemented by Gary Benson.
148 * Optimizations of string functions strstr, strcasestr and memmem.
149 Implemented by Maxim Kuvyrkov.
151 * The minimum Linux kernel version that this version of the GNU C Library
152 can be used with is 2.6.16.
154 * Optimizations of string functions memchr, wcschr, wcscpy, and wcsrchr for
155 powerpc POWER7. Implemented by Will Schmidt.
157 * New configure option --disable-nscd builds the C library such that it
158 never attempts to contact the Name Service Caching Daemon (nscd).
159 New configure option --disable-build-nscd avoids building nscd itself;
160 this is the default if --disable-nscd is used.
162 * Improved support for cross-compilation, including cross-testing and
163 bootstrap builds without a previously built glibc.
165 * Several testsuite tests are now able to test multiple IFUNC variants of an
166 interface, rather than just testing the one that would be chooen by
167 default.
169 * New configure options --with-bugurl and --with-pkgversion, for
170 distributors to use to embed their bug-reporting and package version
171 information in --help and --version output.
173 * The ttyname and ttyname_r functions on Linux now fall back to searching for
174 the tty file descriptor in /dev/pts or /dev if /proc is not available. This
175 allows creation of chroots without the procfs mounted on /proc.
177 * The `crypt' function now fails if passed salt bytes that violate the
178 specification for those values. On Linux, the `crypt' function will
179 consult /proc/sys/crypto/fips_enabled to determine if "FIPS mode" is
180 enabled, and fail on encrypted strings using the MD5 or DES algorithm
181 when the mode is enabled.
183 * The `clock_*' suite of functions (declared in <time.h>) is now available
184 directly in the main C library. Previously it was necessary to link with
185 -lrt to use these functions. This change has the effect that a
186 single-threaded program that uses a function such as `clock_gettime' (and
187 is not linked with -lrt) will no longer implicitly load the pthreads
188 library at runtime and so will not suffer the overheads associated with
189 multi-thread support in other code such as the C++ runtime library.
191 * New locales: ayc_PE, doi_IN, ia_FR, mni_IN, nhn_MX, niu_NU, niu_NZ,
192 sat_IN, and szl_PL.
193 \f
194 Version 2.16
196 * The following bugs are resolved with this release:
198 174, 208, 350, 369, 411, 706, 766, 887, 2074, 2541, 2547, 2548, 2550,
199 2551, 2552, 2553, 2554, 2562, 2563, 2565, 2566, 2570, 2576, 2636, 2678,
200 3335, 3440, 3748, 3768, 3866, 3868, 3906, 3976, 3992, 4026, 4108, 4596,
201 4822, 5077, 5461, 5805, 5993, 6471, 6486, 6578, 6649, 6730, 6770, 6794,
202 6884, 6890, 6894, 6895, 6907, 6911, 6959, 7064, 9739, 9902, 10110, 10135,
203 10140, 10153, 10210, 10254, 10346, 10375, 10545, 10716, 10846, 11174,
204 11261, 11322, 11365, 11451, 11494, 11521, 11677, 11837, 11959, 12047,
205 12097, 12193, 12194, 12297, 12298, 12301, 12340, 12354, 12416, 12495,
206 13058, 13223, 13361, 13525, 13526, 13527, 13528, 13529, 13530, 13531,
207 13532, 13533, 13547, 13551, 13552, 13553, 13555, 13556, 13559, 13563,
208 13566, 13576, 13579, 13583, 13592, 13594, 13613, 13618, 13637, 13656,
209 13658, 13673, 13691, 13695, 13704, 13705, 13706, 13718, 13726, 13738,
210 13739, 13743, 13750, 13758, 13760, 13761, 13775, 13786, 13787, 13792,
211 13806, 13824, 13840, 13841, 13844, 13846, 13848, 13851, 13852, 13854,
212 13871, 13872, 13873, 13879, 13882, 13883, 13884, 13885, 13886, 13892,
213 13895, 13908, 13910, 13911, 13912, 13913, 13914, 13915, 13916, 13917,
214 13918, 13919, 13920, 13921, 13922, 13923, 13924, 13926, 13927, 13928,
215 13938, 13941, 13942, 13954, 13955, 13956, 13963, 13967, 13968, 13970,
216 13973, 13979, 13983, 13986, 13996, 14012, 14027, 14033, 14034, 14036,
217 14040, 14043, 14044, 14048, 14049, 14050, 14053, 14055, 14059, 14064,
218 14075, 14080, 14083, 14103, 14104, 14109, 14112, 14117, 14122, 14123,
219 14134, 14153, 14183, 14188, 14199, 14210, 14218, 14229, 14241, 14273,
220 14277, 14278.
222 * Support for the x32 ABI on x86-64 added. The x32 target is selected by
223 configuring glibc with:
224 BUILD_CC='gcc' CC='gcc -mx32' CXX='g++ -mx32'
225 Visit <http://sites.google.com/site/x32abi/> for more x32 ABI info.
226 Implemented by H.J. Lu.
228 * ISO C11 support:
230 + define static_assert
232 + do not declare gets
234 + declare at_quick_exit and quick_exit also for ISO C11
236 + aligned_alloc. NB: The code is deliberately allows the size parameter
237 to not be a multiple of the alignment. This is a moronic requirement
238 in the standard but it is only a requirement on the caller, not the
239 implementation.
241 + timespec_get added
243 + uchar.h support added
245 + CMPLX, CMPLXF, CMPLXL added
247 Implemented by Ulrich Drepper.
249 * Support for the IA-64 has been moved to ports.
251 * Remove support for anything but ELF binary format
253 * Checking versions of poll, ppoll added.
254 Implemented by Ulrich Drepper.
256 * More generic and 64-bit performance optimizations to math functions.
257 Implemented by Ulrich Drepper.
259 * New configure option --enable-obsolete-rpc makes the deprecated RPC
260 headers and functions available at compile time as they were before
261 version 2.14. This option will be removed at some time in the future
262 after the TI-RPC library becomes fully sufficient for the needs of
263 existing applications.
265 * Compatibility code for Linux kernel versions before 2.4 has been removed.
266 Note that glibc is not expected to work with any Linux kernel version
267 before 2.6.
269 * New header <sys/auxv.h> and function getauxval allowing easy access to
270 the AT_* key-value pairs passed from the Linux kernel. The header also
271 defines the HWCAP_* bits associated with the AT_HWCAP key.
273 * New locales: mag_IN
275 * New configure option --enable-systemtap builds SystemTap static probes
276 into libc for setjmp and longjmp and into libpthread for various operations.
277 So far the setjmp/longjmp probes and some of the libpthread probes are
278 provided only for i*86 and x86_64.
279 Implemented by Roland McGrath and Rayson Ho.
281 * Optimized expf for x86-32 and x86-64. Implemented by Liubov Dmitrieva.
283 * More optimized functions for PowerPC. Implemented by Adhemerval Zanella
284 and Will Schmidt.
286 * More optimized functions for SPARC. Implemented by David S. Miller.
288 * Improved support for cross-compilation, especially bootstrap builds
289 without a previously built glibc.
291 * Ports for the TILE-Gx and TILEPro families of processors. Contributed by
292 Chris Metcalf from Tilera.
294 * Support for the old ARM ABI has been removed from ports. Only the EABI is
295 now supported for ARM processors.
297 * The hard-float variant of the ARM EABI now uses /lib/ld-linux-armhf.so.3
298 as the name of the dynamic linker, to distinguish it from the
299 /lib/ld-linux.so.3 dynamic linker used for the base EABI.
301 * Support for CRIS has been removed from ports.
303 * A new class of installed header has been documented for low-level
304 platform-specific functionality. PowerPC added the first instance with a
305 function to provide time base register access. Contributed by Tulio
306 Magno Quites Machado Filho.
308 * ix86 configurations now install header files that are consistent with
309 what x86-64 configurations install. These same header files can be used
310 for -m32, -m64, or -mx32 builds.
311 Contributed by H.J. Lu.
313 * Math library bug fixes. A thorough audit of all open math library bugs was
314 conducted by Joseph Myers. Significant progress was made on many math
315 library bugs resulting in more accurate exceptions and function results.
316 Many thanks to all those that contributed including Andreas Jaeger for his
317 patch review and work on the x87 trigonometric instruction issues.
319 * Timezone data is no longer installed. Timezone-related binaries and scripts
320 will continue to be installed. Users should obtain their timezone data from
321 their distribution provider or from the tzdata package at
322 <ftp://munnari.oz.au/pub/>.
323 \f
324 Version 2.15
326 * The following bugs are resolved with this release:
328 6779, 6783, 9696, 10103, 10709, 11589, 11929, 12403, 12786, 12840, 12847,
329 12868, 12852, 12874, 12885, 12892, 12906, 12907, 12922, 12935, 12962,
330 13007, 13021, 13061, 13062, 13067, 13068, 13085, 13088, 13090, 13092,
331 13096, 13114, 13118, 13123, 13134, 13138, 13147, 13150, 13166, 13179,
332 13185, 13189, 13192, 13268, 13276, 13282, 13291, 13305, 13328, 13335,
333 13337, 13344, 13358, 13367, 13413, 13416, 13423, 13439, 13446, 13472,
334 13484, 13506, 13515, 13523, 13524, 13538, 13540
336 * New program pldd to list loaded object of a process
337 Implemented by Ulrich Drepper.
339 * Add nss_db support back to glibc. No more dependency on Berkeley db
340 and support for initgroups lookups.
341 Implemented by Ulrich Drepper.
343 * Optimized strcpy, strncpy, stpcpy, stpncpy for SSE2 and SSSE3 on x86-32.
344 Contributed by HJ Lu.
346 * Improved strcpy, strncpy, stpcpy, stpncpy for SSE2 and SSSE3 on x86-64.
347 Contributed by HJ Lu.
349 * Optimized strcat, strncat on x86-64 and optimized wcscmp, wcslen, strnlen
350 on x86-32 and x86-64.
351 Contributed by Liubov Dmitrieva.
353 * Optimized strchr and strrchr for SSE on x86-32.
354 Contributed by Liubov Dmitrieva.
356 * Optimized memchr, memrchr, rawmemchr, memcmp, wmemcmp, wcschr, wcscpy
357 for x86-64 and x86-32.
358 Contributed by Liubov Dmitrieva.
360 * New interfaces: scandirat, scandirat64
361 Implemented by Ulrich Drepper.
363 * Checking versions of FD_SET, FD_CLR, and FD_ISSET added.
364 Implemented by Ulrich Drepper.
366 * nscd now also caches the netgroup database.
367 Implemented by Ulrich Drepper.
369 * Integrate libm with gcc's -ffinite-math-only option.
370 Implemented by Ulrich Drepper.
372 * Lots of generic, 64-bit, and x86-64-specific performance optimizations
373 to math functions. Implemented by Ulrich Drepper.
375 * Optimized strcasecmp and strncasecmp for AVX on x86-64.
376 Implemented by Ulrich Drepper.
378 * New Linux interfaces: process_vm_readv, process_vm_writev
380 * Optimized strcasecmp and strncasecmp for SSSE3 and SSE4.2 on x86-32.
381 Implemented by Ulrich Drepper.
383 * Optimized nearbyint and strcasecmp for PPC.
384 Implemented by Adhemerval Zanella.
386 * New locales: bho_IN, unm_US, es_CU, ta_LK
387 \f
388 Version 2.14
390 * The following bugs are resolved with this release:
392 386, 6420, 7101, 9730, 9732, 9809, 10138, 10149, 10157, 11099, 11257,
393 11258, 11487, 11532, 11558, 11578, 11634, 11653, 11668, 11697, 11724,
394 11781, 11799, 11820, 11837, 11857, 11869, 11892, 11895, 11901, 11945,
395 11947, 11952, 11987, 12052, 12083, 12158, 12178, 12200, 12346, 12350,
396 12393, 12420, 12432, 12445, 12449, 12453, 12454, 12460, 12469, 12489,
397 12509, 12510, 12511, 12518, 12527, 12541, 12545, 12551, 12582, 12583,
398 12587, 12597, 12601, 12611, 12625, 12626, 12631, 12650, 12653, 12655,
399 12660, 12671, 12681, 12684, 12685, 12711, 12713, 12714, 12717, 12723,
400 12724, 12734, 12738, 12746, 12766, 12775, 12777, 12782, 12788, 12792,
401 12795, 12811, 12813, 12814, 12841
403 * The RPC implementation in libc is obsoleted. Old programs keep working
404 but new programs cannot be linked with the routines in libc anymore.
405 Programs in need of RPC functionality must be linked against TI-RPC.
406 The TI-RPC implementation is IPv6 enabled and there are other benefits.
408 Visible changes of this change include (obviously) the inability to link
409 programs using RPC functions without referencing the TI-RPC library and the
410 removal of the RPC headers from the glibc headers.
411 Implemented by Ulrich Drepper.
413 * New Linux interfaces: clock_adjtime, name_to_handle_at, open_by_handle_at,
414 syncfs, setns, sendmmsg
416 * New locales: os_RU, bem_ZA, en_ZA, ff_SN, sw_KE, sw_TZ, lb_LU, wae_CH,
417 yue_HK, lij_IT, mhr_RU
419 * New encodings: CP770, CP771, CP772, CP773, CP774
421 * New program sotruss to trace calls through PLTs
422 Implemented by Ulrich Drepper.
424 * The malloc hook implementation is marked deprecated and will be removed
425 from the default implementation in the next version. The design never
426 worked ever since the introduction of threads. Even programs which do
427 not create threads themselves can use multiple threads created internally.
428 \f
429 Version 2.13
431 * The following bugs are resolved with this release:
433 3268, 6812, 7066, 10085, 10484, 10563, 10851, 11149, 11155, 11577, 11611,
434 11640, 11655, 11701, 11840, 11856, 11883, 11903, 11904, 11968, 11979,
435 12005, 12037, 12067, 12077, 12078, 12092, 12093, 12107, 12108, 12113,
436 12140, 12159, 12167, 12191, 12194, 12201, 12204, 12205, 12207, 12348,
437 12378, 12394, 12397
439 * New Linux interfaces: prlimit, prlimit64, fanotify_init, fanotify_mark
441 * POWER7 optimizations: memset, memcmp, strncmp
443 * New optimized string functions for x86-64: strnlen (SSE2),
444 strcasecmp (SSE2, SSSE3, SSE4.2), strncasecmp (SSE2, SSSE3, SSE4.2)
445 Implemented by Ulrich Drepper.
446 \f
447 Version 2.12
449 * The following bugs are resolved with this release:
451 3662, 4457, 5553, 10162, 10401, 10414, 10554, 10824, 10864, 10915,
452 10918, 10936, 10939, 10958, 10968, 10969, 10972, 10992, 11000, 11001,
453 11007, 11010, 11027, 11039, 11040, 11041, 11043, 11046, 11056, 11070,
454 11093, 11115, 11125, 11126, 11127, 11134, 11141, 11149, 11183, 11184,
455 11185, 11186, 11187, 11188, 11189, 11190, 11191, 11192, 11193, 11194,
456 11200, 11230, 11235, 11242, 11254, 11258, 11271, 11272, 11276, 11279,
457 11287, 11292, 11319, 11332, 11333, 11387, 11389, 11390, 11394, 11397,
458 11410, 11438, 11449, 11470, 11471, 11520, 11537, 11538, 11571
460 * New interfaces: pthread_getname_np, pthread_setname_np
462 * New Linux interface: recvmmsg
464 * STT_GNU_IFUNC implemented for Sparc by David Miller.
466 * The dynamic linker now recognizes supported ABI versions from the
467 EI_ABIVERSION field in the ELF header.
468 Implemented by Ulrich Drepper.
470 * New NIS mode selector ADJUNCT_AS_SHADOW. The passwd.adjunct.byname table
471 will not be used to fill in password fields in the passwd.byname replies.
472 Instead it is used to synthesize the shadow.byname table, should it be
473 missing. This is a useful mode in some installations involving Solaris.
474 Implemented by Ulrich Drepper.
476 * New locales: kok_IN, sq_MK, cv_RU
477 \f
478 Version 2.11
480 * The following bugs are resolved with this release:
482 3270, 7094, 9924, 9986, 10011, 10085, 10107, 10159, 10162, 10166, 10183,
483 10195, 10196, 10200, 10203, 10207, 10211, 10213, 10217, 10221, 10229,
484 10262, 10286, 10312, 10315, 10319, 10349, 10360, 10391, 10402, 10416,
485 10418, 10422, 10425, 10446, 10448, 10452, 10540, 10553, 10560, 10564,
486 10609, 10643, 10692, 10713, 10717, 10730, 10731, 10742, 10780, 10784,
487 10789, 10817, 10823, 10840, 10847
489 * New interfaces: execvpe, pthread_sigqueue, mkstemps, mkstemps64, mkostemps,
490 mkostemps64
491 Implemented by Ulrich Drepper.
493 * Checking version of longjmp added that fails if an uninitialized stack
494 frame would be created. Implemented by Ulrich Drepper.
496 * STT_GNU_IFUNC is now supported in static executables.
497 Implemented by H.J. Lu.
499 * STT_GNU_IFUNC implemented for PPC by Alan Modra.
501 * New optimized string functions for x86-64: strstr, strcasestr, memcmp,
502 strcspn, strpbrk, strspn, strcpy, stpcpy, strncpy, strcmp (SSE2, SSE4.2),
503 strncmp (SSE2, SSE4.2), strchr (SSE4.2), strrchr (SSE4.2).
504 Contributed by H.J. Lu.
506 strlen, rawmemchr, strcmp (SSSE3), strncmp (SSSE3).
507 Implemented by Ulrich Drepper.
509 * New optimized string functions for x86: strlen, strcspn, strspn, strpbrk,
510 strstr, strcasestr.
511 Contributed by H.J. Lu.
513 * Support for fma instruction in AVX on x86-64.
514 Implemented by H.J. Lu and Ulrich Drepper.
516 * AVX support in x86-64 auditing support in ld.so.
517 Implemented by H.J. Lu.
519 * STB_GNU_UNIQUE support added.
520 Implemented by Ulrich Drepper.
522 * Implement second fallback mode for optimized DNS lookup for even more
523 broken environments. If two requests from the same port are not
524 handled correctly close the socket and open a new one before sending
525 the second request. The 'single-request-reopen' option in /etc/resolv.conf
526 can be used to select this mode right away, instead of rediscovering the
527 necessity is every process again.
528 Implemented by Ulrich Drepper.
530 * New resolver flag RES_USE_DNSSEC to enable use of verified lookup.
531 Implemented by Adam Tkac.
533 * Optimized iconv conversions for S390x.
534 Implemented by Andreas Krebbel.
536 * Using condvars with PI mutexes is now more efficient due to kernel
537 support for requeueing to PI futexes. NPTL support added for x86-64.
538 Implemented by Ulrich Drepper.
540 * New locales: ps_AF, my_MM
541 \f
542 Version 2.10
544 * The following bugs are resolved with this release:
546 697, 5381, 5807, 6411, 6545, 7040, 7058, 7067, 7080, 7083, 7095, 7098,
547 9677, 9694, 9697, 9701, 9704, 9705, 9706, 9720, 9726, 9730, 9733, 9736,
548 9741, 9750, 9753, 9759, 9781, 9791, 9793, 9823, 9833, 9844, 9880, 9881,
549 9891, 9893, 9895, 9913, 9916, 9920, 9948, 9955, 9957, 9963, 9985, 10052,
550 10069, 10086, 10087, 10090, 10092, 10093, 10100, 10118, 10128
552 * New interfaces: preadv, preadv64, pwritev, pwritev64, malloc_info
553 Implemented by Ulrich Drepper.
555 * New Linux interfaces: accept4, fallocate, fallocate64.
556 Implemented by Ulrich Drepper.
558 * Correct declarations of string function when used in C++ code. This
559 could lead to compile errors for invalid C++ code.
561 * XPG7/POSIX 2008 compilation environment. Many GNU-specific functions are
562 now in POSIX.
564 * New POSIX 2008 interface: psiginfo
565 Implemented by Ulrich Drepper.
567 * New ISO C++1x interfaces: quick_exit, at_quick_exit
568 Implemented by Ulrich Drepper.
570 * Support for selecting between multiple function definitions at runtime
571 using STT_GNU_IFUNC symbols. Implemented by Ulrich Drepper.
573 * The libcrypt library can now use the hash function implementations in
574 NSS. Implemented by Ulrich Drepper.
576 * The malloc implementation can be compiled to be less memory efficient
577 but higher performing in multi-threaded programs.
578 Implemented by Ulrich Drepper.
580 * New locales: nan_TW@latin, ks_IN
582 * Faster strlen, strchr, strchrnul, strrchr, memchr, and rawmemchr for x86-64.
583 Implemented by Ulrich Drepper.
585 * Extended printf hook support. It is possible to use user-defined types
586 and extend existing format specifiers.
587 Implemented by Ulrich Drepper.
589 * Handling for group shadow files has been added.
590 Implemented by Ulrich Drepper.
592 * DNS IPv4-IPv6 parallel lookup now deals better with broken DNS
593 servers (the case, e.g., for some people using the built-in DNS
594 server in ADSL modems/routers). There is a once-per-process timeout
595 in case of a broken server. To avoid it, users can run nscd or put
596 'options single-request' in /etc/resolv.conf.
597 Implemented by Ulrich Drepper.
598 \f
599 Version 2.9
601 * The following bugs are resolved with this release:
603 3406, 5209, 5210, 5381, 5794, 5814, 5911, 6428, 6438, 6442, 6447, 6461,
604 6472, 6505, 6544, 6589, 6612, 6634, 6653, 6654, 6657, 6698, 6712, 6713,
605 6719, 6723, 6724, 6740, 6763, 6771, 6790, 6791, 6817, 6824, 6839, 6843,
606 6845, 6856, 6857, 6860, 6867, 6875, 6919, 6920, 6942, 6947, 6955, 6966,
607 6968, 6974, 6980, 6995, 7008, 7009, 7029
609 * Unified lookup for getaddrinfo: IPv4 and IPv6 addresses are now looked
610 up at the same time. Implemented by Ulrich Drepper.
612 * TLS descriptors for LD and GD on x86 and x86-64.
613 Implemented by Alexandre Oliva.
615 * getaddrinfo now handles DCCP and UDPlite.
616 Implemented by Ulrich Drepper.
618 * New fixed-size conversion macros: htobe16, htole16, be16toh, le16toh,
619 htobe32, htole32, be32toh, le32toh, htobe64, htole64, be64toh, le64toh.
620 Implemented by Ulrich Drepper.
622 * New implementation of memmem, strstr, and strcasestr which is O(n).
623 Implemented by Eric Blake.
625 * New Linux interfaces: inotify_init1, dup3, epoll_create1, pipe2
627 * Implement "e" option for popen to open file descriptor with the
628 close-on-exec flag set. Implemented by Ulrich Drepper.
630 * Implement "b" mode for fmemopen. In this mode writes writes don't
631 implicitly add a NUL byte and seeks from the end of the buffer really
632 use the buffer end, not the string length as the basis.
633 Implemented by Ulrich Drepper.
635 * Many functions, exported and internal, now atomically set the close-on-exec
636 flag when run on a sufficiently new kernel. Implemented by Ulrich Drepper.
638 * Sorting rules for some Indian languages (Kannada, Gurumukhi, Telugu,
639 Sinhala)
640 Implemented by Pravin Satpute.
642 * New locales: sd_IN, sd_IN@devanagari, ks_IN@devanagari, ht_HT, en_AG, nl_AW.
643 \f
644 Version 2.8
646 * The following bugs are resolved with this release:
648 2549, 3112, 4314, 4407, 4997, 5012, 5040, 5112, 5204, 5208, 5209, 5220,
649 5222, 5224, 5225, 5237, 5238, 5240, 5245, 5277, 5346, 5375, 5378, 5382,
650 5424, 5427, 5428, 5435, 5436, 5439, 5441, 5442, 5443, 5451, 5452, 5454,
651 5455, 5463, 5464, 5465, 5475, 5477, 5478, 5520, 5541, 5545, 5553, 5600,
652 5602, 5607, 5614, 5627, 5628, 5736, 5737, 5741, 5753, 5760, 5762, 5768,
653 5774, 5777, 5778, 5779, 5786, 5790, 5818, 5854, 5857, 5903, 5939, 5979,
654 5983, 5995, 5998, 6004, 6007, 6020, 6021, 6024, 6040, 6042
656 * New locales: bo_CN, bo_IN, shs_CA.
658 * New encoding: HP-ROMAN9, HP-GREEK8, HP-THAI8, HP-TURKISH8.
660 * Sorting rules for some Indian languages (Devanagari and Gujarati).
661 Implemented by Pravin Satpute.
663 * IPV6 addresses in /etc/resolv.conf can now have a scope ID
665 * nscd caches now all timeouts for DNS entries
666 Implemented by Ulrich Drepper.
668 * nscd is more efficient and wakes up less often.
669 Implemented by Ulrich Drepper.
671 * More checking functions: asprintf, dprintf, obstack_printf, vasprintf,
672 vdprintf, and obstack_vprintf.
673 Implemented by Jakub Jelinek.
675 * Faster memset for x86-64.
676 Implemented by Harsha Jagasia and H.J. Lu.
678 * Faster memcpy on x86.
679 Implemented by Ulrich Drepper.
681 * ARG_MAX is not anymore constant on Linux. Use sysconf(_SC_ARG_MAX).
682 Implemented by Ulrich Drepper.
684 * Faster sqrt and sqrtf implemention for some PPC variants.
685 Implemented by Steven Munroe.
686 \f
687 Version 2.7
689 * The following bugs are resolved with this release:
691 4125, 4126, 4178, 4359, 4407, 4512, 4514, 4525, 4554, 4556, 4557, 4566,
692 4582, 4586, 4588, 4599, 4610, 4647, 4702, 4705, 4726, 4745, 4772, 4773,
693 4775, 4776, 4792, 4813, 4814, 4816, 4833, 4858, 4860, 4896, 4905, 4925,
694 4936, 4937, 4938, 4941, 4946, 4963, 4972, 5010, 5028, 5043, 5058, 5063,
695 5071, 5103, 5104, 5112, 5113, 5184, 5186
697 * More checking functions: fread, fread_unlocked, open*, mq_open.
698 Implemented by Jakub Jelinek and Ulrich Drepper.
700 * Extend fortification to C++. Implemented by Jakub Jelinek.
702 * Implement 'm' modifier for scanf. Add stricter C99/SUS compliance
703 by not recognizing 'a' as a modifier when those specs are requested.
704 Implemented by Jakub Jelinek.
706 * PPC optimizations to math and string functions.
707 Implemented by Steven Munroe.
709 * New interfaces: mkostemp, mkostemp64. Like mkstemp* but allow additional
710 options to be passed. Implemented by Ulrich Drepper.
712 * More CPU set manipulation functions. Implemented by Ulrich Drepper.
714 * New Linux interfaces: signalfd, eventfd, eventfd_read, and eventfd_write.
715 Implemented by Ulrich Drepper.
717 * Handle private futexes in the NPTL implementation.
718 Implemented by Jakub Jelinek and Ulrich Drepper.
720 * Add support for O_CLOEXEC. Implement in Hurd. Use throughout libc.
721 Implemented by Roland McGrath and Ulrich Drepper.
723 * Linux/x86-64 vDSO support. Implemented by Ulrich Drepper.
725 * SHA-256 and SHA-512 based password encryption.
726 Implemented by Ulrich Drepper.
728 * New locales: ber_DZ, ber_MA, en_NG, fil_PH, fur_IT, fy_DE, ha_NG, ig_NG,
729 ik_CA, iu_CA, li_BE, li_NL, nds_DE, nds_NL, pap_AN, sc_IT, tk_TM, ug_CN,
730 yo_NG.
732 + New iconv modules: MAC-CENTRALEUROPE, ISO-8859-9E, KOI8-RU.
733 Implemented by Ulrich Drepper.
734 \f
735 Version 2.6
737 * The following bugs are resolved with this release:
739 3156, 3213, 3285, 3291, 3306, 3313, 3320, 3322, 3325, 3326, 3334, 3348,
740 3352, 3363, 3369, 3426, 3427, 3429, 3451, 3458, 3465, 3480, 3483, 3493,
741 3514, 3515, 3559, 3632, 3664, 3673, 3674, 3745, 3747, 3818, 3840, 3842,
742 3851, 3855, 3884, 3885, 3902, 3905, 3919, 3944, 3954, 3955, 3957, 3991,
743 3995, 3996, 4024, 4040, 4069, 4070, 4074, 4076, 4096, 4101, 4102, 4114,
744 4130, 4131, 4181, 4276, 4306, 4342, 4344, 4349, 4364, 4368, 4381, 4392,
745 4403, 4405, 4406, 4411, 4438, 4439, 4455, 4456, 4465, 4512, 4514, 4586,
746 4702, 4858
748 * New Linux interfaces: epoll_pwait, sched_getcpu.
750 * New generic interfaces: strerror_l.
752 * nscd can now cache the services database. Implemented by Ulrich Drepper.
753 \f
754 Version 2.5
756 * The following bugs are resolved with this release:
758 39, 68, 192, 352, 388, 531, 935, 1006, 1201, 1203, 1386, 1782, 1783, 1784,
759 1785, 1786, 1787, 1951, 1974, 1996, 2072, 2098, 2125, 2134, 2158, 2182,
760 2349, 2376, 2386, 2389, 2415, 2418, 2420, 2423, 2450, 2451, 2466, 2472,
761 2473, 2477, 2498, 2499, 2501, 2502, 2505, 2507, 2508, 2509, 2517, 2526,
762 2569, 2571, 2592, 2611, 2625, 2632, 2644, 2662, 2680, 2683, 2684, 2693,
763 2695, 2703, 2734, 2751, 2764, 2766, 2775, 2792, 2821, 2823, 2832, 2841,
764 2843, 2883, 2892, 2908, 2914, 2926, 2961, 2978, 2980, 2987, 2997, 2998,
765 3013, 3018, 3034, 3040, 3044, 3123, 3124, 3137, 3138, 3143, 3155, 3189,
766 3225, 3251, 3252, 3253, 3273
768 * For Linux, the sorting of addresses returned by getaddrinfo now also
769 handles rules 3, 4, and 7 from RFC 3484. I.e., all rules are handled.
770 Implemented by Ulrich Drepper.
772 * Allow system admin to configure getaddrinfo with the /etc/gai.conf file.
773 Implemented by Ulrich Drepper.
775 * New Linux interfaces: splice, tee, sync_file_range, vmsplice.
777 * New iconv module for MIK. Contributed by Alexander Shopov.
779 * For sites with broken group and/or passwd database, the auto-propagate
780 option of nscd can prevent creating ID lookup entries from the results
781 of a name lookup and vice versa. This usually is no problem but some
782 site might have problems with the default behavior.
783 Implemented by Ulrich Drepper.
785 * Iterating over entire database in NIS can be slow. With the
786 SETENT_BATCH_READ option in /etc/default/nss a system admin can decide
787 to trade time for memory. The entire database will be read at once.
788 Implemented by Ulrich Drepper.
790 * The interfaces introduced in RFC 3542 have been implemented by
791 Ulrich Drepper.
793 * Support for the new ELF hash table format was added by Ulrich Drepper.
795 * Support for priority inheritance mutexes added by Jakub Jelinek and
796 Ulrich Drepper.
798 * Support for priority protected mutexes added by Jakub Jelinek.
800 * New locales: nr_ZA, pa_PK, ca_AD, ca_FR, ca_IT, el_CY, tr_CY, as_IN,
801 or_IN, csb_PL, fy_NL, sr_ME.
802 \f
803 Version 2.4
805 * More overflow detection functions.
807 * New iconv converters for IBM1025, IBM1122, IBM1137, IBM1153,
808 IBM1154, IBM1155, IBM1156, IBM1157, and IBM1158 contributed by Jiro Sekiba.
810 More converters for IBM803, IBM901, IBM902, IBM921, IBM1008, IBM1097,
811 IBM1112, IBM1123, IBM1130, IBM1140, IBM1141, IBM1142, IBM1143, IBM1144,
812 IBM1145, IBM1146, IBM1147, IBM1148, IBM1149, IBM1166, IBM1167, IBM4517,
813 IBM4899, IBM4909, IBM4971, IBM5347, IBM9030, IBM9066, IBM9448, IBM12712,
814 IBM16804, IBM1364, IBM1371, IBM1388, IBM1390, and IBM1399 contributed
815 by Masahide Washizawa.
817 * It is now possible to install audit libraries for the dynamic linker using
818 LD_AUDIT. Implemented by Ulrich Drepper.
820 * The LinuxThreads add-on, providing pthreads on Linux 2.4 kernels, is no
821 longer supported. The new NPTL implementation requires Linux 2.6 kernels.
822 For a libc and libpthread that works well on Linux 2.4 kernels, we
823 recommend using the stable 2.3 branch.
825 * The new function open_wmemstream acts like open_memstream,
826 but uses a wchar_t wide character buffer.
828 * The new function ppoll is an improved version of poll, similar to pselect.
830 * New interfaces: fdopendir, openat, fstatat, fchmodat, fchownat,
831 futimesat, faccessat, mkdirat, mkfifoat, mknodat,
832 renameat, unlinkat, linkat, symlinkat, readlinkat.
834 * New Linux kernel system calls: unshare,
835 inotify_init, inotify_add_watch, inotify_rm_watch.
837 * The euidaccess function is now also known by the alias eaccess,
838 for compatibility with some other systems.
840 * Timezone data updated to 2006b version.
841 \f
842 Version 2.3.6
844 * The following bugs are resolved with this release:
846 38, 253, 549, 622, 653, 721, 758, 851, 877, 915, 934, 955, 961,
847 1016, 1037, 1076, 1079, 1080, 1081, 1082, 1083, 1084, 1085, 1086,
848 1087, 1088, 1090, 1091, 1092, 1093, 1094, 1095, 1096, 1097, 1098,
849 1099, 1100, 1101, 1102, 1103, 1104, 1105, 1106, 1107, 1108, 1109,
850 1110, 1111, 1112, 1113, 1125, 1137, 1138, 1249, 1250, 1251, 1252,
851 1253, 1254, 1350, 1358, 1394, 1438, 1498, 1534
853 Visit <http://sources.redhat.com/bugzilla/> for the details of each bug.
855 * As of this release, GCC 4 can be used to compile the C Library.
857 * Timezone data updated to 2005m version.
858 \f
859 Version 2.3.5
861 * The following bugs are resolved with this release:
863 284, 592, 602, 626, 633, 640, 650, 661, 671, 681, 693, 700, 710, 719,
864 722, 723, 725, 726, 727, 728, 729, 730, 731, 732, 733, 734, 735, 736,
865 737, 738, 739, 740, 741, 742, 743, 744, 745, 765, 767, 768, 769, 776,
866 777, 787, 821, 822, 823, 825
868 Visit <http://sources.redhat.com/bugzilla/> for the details of each bug.
869 \f
870 Version 2.3.4
872 * Support for RFC 3678. Real implementations exist only for Linux so far.
873 Implemented by Ulrich Drepper.
875 * nscd can now cache entries persistently. Expiring entries are reloaded.
876 For speedups the cache can be shared in memory with client processes.
877 Implemented by Ulrich Drepper.
879 * nscd can now perform SELinux checks.
880 Implemented by Matthew Rickard <mjricka@epoch.ncsc.mil>.
882 * getaddrinfo queries are now cached. Canonical name lookup is performed
883 efficiently.
884 Implemented by Ulrich Drepper.
886 * The nothrow function attribute is used when headers are used by gcc when
887 compiling C code. This can avoid significant amounts of exception
888 handling data.
890 * The malloc functions perform more error checking and are stricter when
891 it comes to reacting on errors. The default action is to terminate
892 the process after showing an error message. Implemented by Ulrich Drepper.
894 * Reverse lookups of IPv6 addresses does not use bit string or .ip6.int
895 lookups anymore unless explicitly requested. Implemented by Ulrich Drepper.
897 * Namespaces in ld.so are implemented. DSOs can be loaded in separate
898 namespaces using the new function dlmopen(). This feature is of course,
899 like most other dynamic loading functionality, not available in statically
900 linked applications. Implemented by Ulrich Drepper.
902 * Low-overhead boundary checking variants of string and some stdio functions
903 were added. These are to be used in conjunction with a gcc patch by
904 Jakub Jelinek which adds calls to these functions if possible.
905 Implemented by Jakub Jelinek and Ulrich Drepper.
907 * Old code for several operating systems and machine architectures that
908 have not been in working condition in a long time have been removed from
909 the main source tree maintained by the GNU C Library's maintainers.
910 These files are now reside in the separate `ports' source module
911 that is usable as an add-on when building the library.
912 \f
913 Version 2.3.3
915 * New functions `dladdr1' and `dlinfo' in <dlfcn.h> provide more ways to
916 interrogate the dynamic linker, compatible with the Solaris interface.
918 * ELF thread-local storage support (TLS) now works on PowerPC and PowerPC64;
919 implemented by Paul Mackerras, Steven Munroe, and Roland McGrath.
921 * getifaddrs now uses the netlink interface on Linux to get its information.
922 Implemented by Thorsten Kukuk.
924 * getaddrinfo now implements AI_V4MAPPED, AI_ALL, and AI_ADDRCONF.
925 Implemented by Ulrich Drepper.
927 * support for non-executable stacks on x86 has been added. Changes mostly
928 by Roland McGrath.
930 * regex is now much faster for multibyte locales. Changes by Jakub Jelinek
931 and Ulrich Drepper.
933 * getaddrinfo now performs destination address selection according to
934 RFC 3484.
935 \f
936 Version 2.3.2
938 * Thread-safe interfaces for many functions that access locale data
939 were added in version 2.3, but these features were omitted from NEWS.
940 Many functions have variants with an `_l' suffix that take a `locale_t'
941 object as a parameter rather than consulting the current locale.
942 The new functions `newlocale', `duplocale', and `freelocale' in <locale.h>
943 create and maintain `locale_t' objects. Additionally, the new function
944 `uselocale' sets "the current locale" (as used by functions not so
945 parameterized) set for an individual thread. These features were added
946 in version 2.3, implemented by Ulrich Drepper and Roland McGrath.
948 * The functions getresuid, getresgid, setresuid, and setresgid, which
949 have long been available on Linux, are now declared in <unistd.h>
950 and are now also available on the Hurd.
952 * ELF thread-local storage support (TLS) now works on x86-64.
954 * The new dynamic string token $LIB is expanded in shared library names.
955 This normally expands to lib, but on some 64-bit platforms to lib64 instead.
957 * Aldy Hernandez contributed complete software floating point support for
958 PowerPC machines with no FPU.
960 * fexecve is implemented on Linux.
962 * The `btowc' function should work at least twice as fast due to
963 specialized callbacks in the iconv modules. Implemented by Bruno Haible.
965 * With approriate thread add-ons cancelable functions are now implemented
966 in libc.so as well. No need to call the function in libpthread. This
967 change allowed to finally disable the incorrect and expensive handling
968 of weak definition in ld.so.
970 * Yet more PLT entries in libc.so have been removed. We finally arrived
971 at the bare minimum. Startup times improved appropriately.
973 * Support for the new Linux/x86 system call interface was added. The
974 AT_SYSINFO auxiliary vector entry is recognized and handled.
975 \f
976 Version 2.3
978 * Masahide Washizawa contributed iconv modules for IBM1163 and IBM1164
979 charsets.
981 * iconv (the program and the interface) now accepts empty names (excluding
982 options like //TRANSLIT) to mean "use charset of current locale".
984 * localedef can now transliterate characters in strings which are not in
985 the provided charmap. The information from the input locale is used.
987 * Prelinking support was added for ELF targets. This requires additional
988 tools and recent versions of the GNU binutils. Contributed by Jakub Jelinek.
990 * Read-only stdio streams now use mmap to speed up operation by eliminating
991 copying and buffer underflows. To use add 'm' to the mode string of
992 the fopen/fdopen/freopen call. Implemented by Ulrich Drepper.
994 * The malloc functions were completely rewritten by Wolfram Gloger based
995 on Doug Lea's malloc-2.7.0.c.
997 * Isamu Hasegawa contributed a completely new and POSIX-conformant
998 implementation of regex.
1000 * Bruno Haible upgraded the iconv and locale implementation to support
1001 Unicode 3.2.
1003 * Contents of the LC_* and LANG environment variables in the CEN style are
1004 not recognized anymore. It never was used. Change by Ulrich Drepper.
1006 * The runtime (ld.so, libc, libpthread for Linux) now can handle the ELF
1007 thread-local storage (TLS) ABI on some platforms.
1008 Changes by Ulrich Drepper. SH support by Kaz Kojima.
1010 * Bruno Haible contributed iconv converters for ISO-2022-JP-3, SHIFT JIS-X0213,
1011 EUC-JISX0213, and TSCII.
1013 * New header <ifaddrs.h> with functions `getifaddrs' and `freeifaddrs':
1014 BSD-compatible interface for getting all network interface addresses.
1015 Implementation for IPv4 by Roland McGrath.
1017 * Loading of locale data is faster due to the introduction of a locale
1018 archive. Implemented by Roland McGrath and Ulrich Drepper.
1020 * Startup times are significantly reduced by not using exported functions
1021 inside the library itself. Changes by Jakub Jelinek, Roland McGrath,
1022 and Ulrich Drepper.
1024 * Steven Munroe contributed a port to PowerPC64/Linux.
1025 \f
1026 Version 2.2.6
1028 * The Hurd now uses the GNU libio implementation of stdio rather than the
1029 old GNU stdio implementation, and uses a new ABI (libc.so.0.3).
1031 * The Hurd on x86 now has the `ioperm' function and <sys/io.h> header file
1032 with the same behavior as the Linux system call of the same name.
1033 \f
1034 Version 2.2.5
1036 * Stephen Moshier implemented log2, log10, powl and cbrtl for the
1037 128-bit long double format.
1039 * Masahide Washizawa contributed iconv modules for IBM1132, IBM1133, IBM1160,
1040 IBM1161, and IBM1162 charsets.
1042 * Andreas Jaeger contributed a port to x86-64/Linux.
1044 * Peter Bruin contributed a port to PowerPC/Hurd.
1046 * libc functions using I/O streams now can handle wide-oriented streams
1047 as well.
1049 * optimizations in the dynamic linker. Binaries created by recent binutils
1050 versions start up quicker due to reduced time spent on relocations.
1052 * Support for use of gcc3 added by Jakub Jelinek and HJ Lu.
1053 \f
1054 Version 2.2.4
1056 * Stephen Moshier implemented cosh, expm1, log1p, acos, sinh, tanh,
1057 asinh, atanh, j0 for the 128-bit long double format.
1059 * Bruno Haible updated all the code handling Unicode in some form to
1060 support Unicode 3.1.
1062 * Speed of regex for single-byte locales is back to previous levels.
1063 Patch by Isamu Hasegawa.
1065 * Alpha, SPARC, and IA-64 now also using floating stacks.
1067 * Startup time of internationalized applications greatly improved through
1068 iconv cache. Use iconvconfig to generate the cache file.
1069 Contributed by Ulrich Drepper.
1071 * The IA-64 specific part of ld.so was rewritten to eliminate some pretty
1072 severe performance problems. Patch by David Mosberger.
1074 * The Hurd port got a lot more functionality like AIO, various stdio
1075 extensions, etc. Mainly done by Roland McGrath.
1077 * mtrace can now lookup symbols in shared libraries.
1078 \f
1079 Version 2.2.3
1081 * Intel's IA-64 math library is largely integrated. It provides fast and
1082 accurate implementatations for most basic and standard math functions
1083 in float, double, and long double format.
1085 * Stephen Moshier implemented j0, j1, jn, y0, y1, yn, lgamma, erf, erfc,
1086 and asin for the 96-bit long double format and asin, log, tan for the
1087 128-bit long double format.
1089 * The beginning of a last-bit accurate math library by IBM Haifa were added.
1090 The basic double functions exist today. Contributed by Abraham Ziv
1091 <ziv@il.ibm.com>, Moshe Olshansky <olshansk@il.ibm.com>, Ealan Henis
1092 <ealan@il.ibm.com>, and Anna Reitman <reitman@il.ibm.com>.
1094 * An asynchronous name lookup library was added. The interface is designed
1095 after POSIX AIO. The proposal was circulated beforehand to get comments.
1096 No negative ones came in. Implemented by Ulrich Drepper.
1098 * Port to S390/64bit contributed by Martin Schwidefsky
1099 <schwidefsky@de.ibm.com>.
1101 * David Mosberger <davidm@hpl.hp.com> implemented the setcontext family
1102 of functions for Linux/IA-64.
1104 * The RPC code is now thread safe. Threads can now use the same service
1105 of different services at the same time. Patch by Eric Norum
1106 <eric.norum@usask.ca> with some help by Ulrich Drepper.
1108 * Martin Schwidefsky <schwidefsky@de.ibm.com> implemented the setcontext
1109 family of functions for Linux/S390.
1111 * Ulrich Drepper <drepper@redhat.com> implemented the setcontext family
1112 of functions for Linux/x86.
1114 * Port to Linux/CRIS contributed by Axis Communications.
1115 \f
1116 Version 2.2.2
1118 * Lots of headers were cleaned up. Using the tool in the conform/ subdir
1119 we can now check for namespace violations and missing declarations. The
1120 result is that almost all headers are now Unix-compliant (as defined in
1121 the upcoming XPG6). The negative side is that some programs might need
1122 corrections, too, if they depend on the incorrect form of the headers in
1123 previous versions which defined too many symbols and included too many
1124 other headers.
1126 * regex now handles multibyte character sets correctly.
1127 Contributed by Isamu Hasegawa <isamu@yamato.ibm.com>.
1129 * iconv (the program) does now conform to the upcoming XPG6 and handles
1130 charmaps. Instead of the charset names the path of charmaps can be
1131 provided and the conversion happens based on this data.
1132 Contributed by Ulrich Drepper.
1134 * The locale program now provides detailed information about the installed
1135 locales. While
1137 locale -a
1139 only lists the names of the supported locales
1141 locale -a --verbose
1143 provides details such as country, language, and codeset name.
1144 Contributed by Ulrich Drepper.
1145 \f
1146 Version 2.2.1
1148 * The gencat program now parses the input file according to the charset
1149 selected by the LC_CTYPE category. This is important for stateful
1150 character sets. To make generating catalogs easier there is a way
1151 to overwrite the charset selected by the locale: before the first
1152 message or $ quote line the catalog can contain a line like
1154 $ codeset=ISO-8859-2
1156 to select the charset (ISO-8859-2 in this case).
1158 Implemented by Shinya Hanataka and Ulrich Drepper.
1160 * New codeset conversion modules: IBM-922 (Estonia PC codeset),
1161 IBM-1124 (Ukraine PC codeset), IBM-1129 (Vietnamese PC codeset).
1162 Contributed by Masahide Washizawa <washi@jp.ibm.com>.
1164 * Optimized string functions for Alpha ev6 and ev67 by Richard Henderson
1165 <rth@redhat.com> and Rick Gorton <rick.gorton@alpha-processor.com>.
1167 * The LANGUAGE environment variable is now ignored unless the locale is
1168 changed from the default "C" locale.
1170 * The usual bug fixes.
1171 \f
1172 Version 2.2
1174 * Greg McGary added runtime support for bounds checking using gcc's
1175 new -fbounded-pointers option. ix86 target is complete. PowerPC
1176 is in progress.
1178 * Thorsten Kukuk added secure mode support to nscd.
1180 * The Berkeley db libraries have been removed.
1182 Related, the nss_db module is now in a separate package since it
1183 obviously requires a database library being available.
1185 * Wide character I/O streams implemented by Ulrich Drepper.
1187 * Functions from the extended socket API added by Ulrich Drepper.
1189 * Functions feenableexcept and fedisableexcept to control the
1190 behaviour of individual exceptions have been added by Andreas Jaeger.
1192 * ldconfig program added by Andreas Jaeger and Jakub Jelinek.
1194 * The resolver code has been updated from bind 8.2.3-T5B which supports
1195 threads. The integration was done by Andreas Jaeger, Adam D. Bradley,
1196 and Mark Kettenis.
1198 This change could in some situations effect backward compatibility. Since
1199 now `_res' is a thread-local instead of a global variable, modifying it
1200 in one thread does not have any effect in other threads.
1202 The resolver library was also extended to allow IPv6 as the transport
1203 protocol for the requests. This work was done by Stig Venaas.
1205 * Compatibility code for K&R C compilers has been removed from the
1206 header files. A ISO C compiler is needed to use the library
1207 (conforming to either C89 or C99 standard).
1209 * Complete rewrite of the localedef program to support multibyte character
1210 sets. Implement handling of ISO 14651 and ISO 14652. Rewrite strcoll,
1211 strxfrm, wcscoll, and wcsxfrm functions. Make isw*() functions work.
1212 Implemented by Ulrich Drepper.
1214 Bruno Haible significantly improved the generation and use of the data
1215 structures for the wide character tables.
1217 * Plural handling in gettext implemented by Ulrich Drepper.
1219 * The utmp daemon has been removed.
1221 * The port to MIPS-Linux has been finished by Andreas Jaeger.
1223 * A port to Hitachi SH3 and SH4 has been contributed by Kazumoto Kojima
1224 and Yutaka Niibe.
1226 * POSIX clocks and timers implemented by Kaz Kylheku and Ulrich Drepper.
1228 * POSIX barriers implemented by Kaz Kylheku.
1230 * POSIX spawn function family implemented by Ulrich Drepper.
1232 * POSIX spinlocks are now available.
1234 * Timed wait functions for mutex, rwlock, and semaphores are implemented.
1236 * the configure option --enable-kernel=X.Y.Z allows to strip out
1237 compatibility for kernel versions before X.Y.Z. This is currently only
1238 implemented for Linux.
1240 * the sockaddr_in6 structure changed. The IPv6 working group added a new
1241 field sin6_scope_id. This means that all programs using IPv6 should be
1242 recompiled. Don't expect binary compatibility with previous glibc
1243 versions.
1245 * various conversion modules for IBM character sets contributed by
1246 Masahide Washizawa.
1248 * IA-64 port by Jes Sorensen and HJ Lu.
1249 \f
1250 Version 2.1.3
1252 * bug fixes
1254 \f
1255 Version 2.1.2
1257 * bug fixes
1259 \f
1260 Version 2.1.1
1262 * New ISO C 9x function _Exit, imaxabs, and imaxdiv are added.
1264 * New xdr functions are added; some rpc functions are now 64bit clean.
1266 * Fixed a number of bugs and memory leaks (especially in NIS+ code).
1268 * Fixed known incompatibilities with glibc 2.0.
1270 * New functions lock64, strchrnul, rawmemchr, getutmp and getutmpx.
1272 * Optimized a number of functions (especially the ELF dynamic loader).
1274 * Update timezone data files.
1276 * lots of charmaps corrections
1278 * some new locale definitions and charmaps
1280 \f
1281 Version 2.1
1283 * Richard Henderson corrected size of struct timeval on Linux/Alpha to
1284 conform to POSIX member type requirements. Symbol versions have been
1285 adjusted as needed within the library, and for direct use by applications,
1286 but there is potential for problems if third-party libraries use
1287 struct timeval as part of their interface. This does not present
1288 a problem for X and other "essential" system libraries.
1290 * An additional locale model to support C++ Standard Library locale
1291 model and probably more was implemented by Ulrich Drepper.
1293 * Eric Youngdale and Ulrich Drepper implemented versioning of objects on
1294 symbol level.
1296 * Miles Bader provided the `argp' function family to support hierachical
1297 command line argument parsing, layered on top of getopt.
1299 * strtod accepts new hexadecimal floating-point format from ISO C 9X.
1301 * printf has two new specifiers %a and %A to print hexadecimal flaoting-point
1302 numbers.
1304 * scanf recognizes the %a and %A format for scanning floating point numbers.
1306 * the new headers <stdint.h> and <inttypes.h> from ISO C 9X provides
1307 information and interfaces for the available integer types.
1309 * about 130 new math functions were added to implement the ISO C9x math
1310 library.
1312 * the new header <complex.h> contains definitions of the complex math
1313 functions from ISO C 9X.
1315 * the new header <tgmath.h> defines generic macros to use complex or
1316 real valued functions.
1318 * Thorsten Kukuk provided an implementation for NIS+, securelevel 0, 1 and 2.
1320 * Andreas Jaeger provided a test suite for the math library.
1322 * Mark Kettenis implemented the utmpx interface and an utmp daemon.
1324 * Ulrich Drepper added character set conversion functions (iconv).
1326 * Optimized string functions have been added.
1328 * The localedata addon is now part of glibc.
1330 * An implementation of profiling shared libraries was added by Ulrich Drepper.
1332 * Thorsten Kukuk and Ulrich Drepper provided an implementation for a caching
1333 daemon for NSS (nscd).
1335 Missing a better place here are some numbers on improvements. Under
1336 Linux 2.1.125 un-tar-ing the kernel sources takes
1338 user system wall
1340 using local files 12.19s 6.88s 22.91s
1342 using NIS 13.92s 8.91s 26.34s
1344 using NIS & nscd 10.37s 7.34s 25.30s
1346 using NIS+ 27.57s 30.37s 640.46s
1348 using NIS+ & nscd 10.25s 7.83s 26.51s
1350 using NIS & old nscd [1] 13.83s 8.32s 29.60s
1352 Keep in mind that non-namelookup related operations dominate above times.
1353 It was just a common complain that using NIS+ unpacking the kernel is
1354 horribly slow.
1356 [1] The old nscd implementation is not available anymore since it was
1357 distributed with glibc up to version 2.0.98 and thus is now replaced.
1359 * Tim Waugh provided an implementation of the POSIX.2 wordexp function family.
1361 * Mark Kettenis provided a Hesiod NSS module.
1363 * The ELF dynamic loader knows how to process dynamic string tokens ($ORIGIN
1364 and $PLATFORM) in RPATHs and similar strings (Ulrich Drepper).
1366 * rcmd can now handle netgroups (Dick Streefland).
1368 * A port to the ARM was contributed by Phil Blundell, Pat Beirne and Scott
1369 Bambrough.
1371 * Support for the IPv6 protocol has been added to the socket API, as per the
1372 latest draft standards.
1374 * Support for Linux 2.2 has been added.
1376 * Interface changes relative to the latest 2.0.x release:
1377 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1378 addseverity NEW: Unix98
1379 alphasort64 NEW: LFS
1380 argp_err_exit_status NEW: argp, GNU ext
1381 argp_error NEW: argp, GNU ext
1382 argp_failure NEW: argp, GNU ext
1383 argp_help NEW: argp, GNU ext
1384 argp_parse NEW: argp, GNU ext
1385 argp_program_bug_address NEW: argp, GNU ext
1386 argp_program_version NEW: argp, GNU ext
1387 argp_program_version_hook NEW: argp, GNU ext
1388 argp_state_help NEW: argp, GNU ext
1389 argp_usage NEW: argp, GNU ext
1390 authdes_create NEW: Secure RPC
1391 authdes_getucred NEW: Secure RPC
1392 authdes_pk_create NEW: Secure RPC
1393 backtrace NEW: GNU ext.
1394 backtrace_symbols NEW: GNU ext.
1395 backtrace_symbols_fd NEW: GNU ext.
1396 cacos NEW: ISO C 9x
1397 cacosf NEW: ISO C 9x
1398 cacosh NEW: ISO C 9x
1399 cacoshf NEW: ISO C 9x
1400 cacoshl NEW: ISO C 9x
1401 cacosl NEW: ISO C 9x
1402 capget NEW: kernel
1403 capset NEW: kernel
1404 carg NEW: ISO C 9x
1405 cargf NEW: ISO C 9x
1406 cargl NEW: ISO C 9x
1407 casin NEW: ISO C 9x
1408 casinf NEW: ISO C 9x
1409 casinh NEW: ISO C 9x
1410 casinhf NEW: ISO C 9x
1411 casinhl NEW: ISO C 9x
1412 casinl NEW: ISO C 9x
1413 catan NEW: ISO C 9x
1414 catanf NEW: ISO C 9x
1415 catanh NEW: ISO C 9x
1416 catanhf NEW: ISO C 9x
1417 catanhl NEW: ISO C 9x
1418 catanl NEW: ISO C 9x
1419 cbc_crypt NEW: Secure RPC
1420 ccos NEW: ISO C 9x
1421 ccosf NEW: ISO C 9x
1422 ccosh NEW: ISO C 9x
1423 ccoshf NEW: ISO C 9x
1424 ccoshl NEW: ISO C 9x
1425 ccosl NEW: ISO C 9x
1426 cexp NEW: ISO C 9x
1427 cexpf NEW: ISO C 9x
1428 cexpl NEW: ISO C 9x
1429 cimag NEW: ISO C 9x
1430 cimagf NEW: ISO C 9x
1431 cimagl NEW: ISO C 9x
1432 clearerr_locked REMOVED
1433 clntunix_create NEW: sunrpc ext
1434 clog NEW: ISO C 9x
1435 clog10 NEW: ISO C 9x
1436 clog10f NEW: ISO C 9x
1437 clog10l NEW: ISO C 9x
1438 clogf NEW: ISO C 9x
1439 clogl NEW: ISO C 9x
1440 conj NEW: ISO C 9x
1441 conjf NEW: ISO C 9x
1442 conjl NEW: ISO C 9x
1443 cpow NEW: ISO C 9x
1444 cpowf NEW: ISO C 9x
1445 cpowl NEW: ISO C 9x
1446 cproj NEW: ISO C 9x
1447 cprojf NEW: ISO C 9x
1448 cprojl NEW: ISO C 9x
1449 creal NEW: ISO C 9x
1450 crealf NEW: ISO C 9x
1451 creall NEW: ISO C 9x
1452 creat64 NEW: LFS
1453 csin NEW: ISO C 9x
1454 csinf NEW: ISO C 9x
1455 csinh NEW: ISO C 9x
1456 csinhf NEW: ISO C 9x
1457 csinhl NEW: ISO C 9x
1458 csinl NEW: ISO C 9x
1459 csqrt NEW: ISO C 9x
1460 csqrtf NEW: ISO C 9x
1461 csqrtl NEW: ISO C 9x
1462 ctan NEW: ISO C 9x
1463 ctanf NEW: ISO C 9x
1464 ctanh NEW: ISO C 9x
1465 ctanhf NEW: ISO C 9x
1466 ctanhl NEW: ISO C 9x
1467 ctanl NEW: ISO C 9x
1468 des_setparity NEW: Secure RPC
1469 ecb_crypt NEW: Secure RPC
1470 endutxent NEW: Unix98
1471 exp10 NEW: ISO C 9x
1472 exp10f NEW: ISO C 9x
1473 exp10l NEW: ISO C 9x
1474 exp2 NEW: ISO C 9x
1475 exp2f NEW: ISO C 9x
1476 exp2l NEW: ISO C 9x
1477 fattach NEW: STREAMS
1478 fdetach NEW: STREAMS
1479 fdim NEW: ISO C 9x
1480 fdimf NEW: ISO C 9x
1481 fdiml NEW: ISO C 9x
1482 feclearexcept NEW: ISO C 9x
1483 fegetenv NEW: ISO C 9x
1484 fegetexceptflag NEW: ISO C 9x
1485 fegetround NEW: ISO C 9x
1486 feholdexcept NEW: ISO C 9x
1487 feof_locked REMOVED
1488 feraiseexcept NEW: ISO C 9x
1489 ferror_locked REMOVED
1490 fesetenv NEW: ISO C 9x
1491 fesetexceptflag NEW: ISO C 9x
1492 fesetround NEW: ISO C 9x
1493 fetestexcept NEW: ISO C 9x
1494 feupdateenv NEW: ISO C 9x
1495 fflush_locked REMOVED
1496 ffsl NEW: GNU ext.
1497 ffsll NEW: GNU ext.
1498 fgetpos64 NEW: LFS
1499 fgets_unlocked NEW: GNU ext.
1500 fileno_locked REMOVED
1501 fma NEW: ISO C 9x
1502 fmaf NEW: ISO C 9x
1503 fmal NEW: ISO C 9x
1504 fmax NEW: ISO C 9x
1505 fmaxf NEW: ISO C 9x
1506 fmaxl NEW: ISO C 9x
1507 fmin NEW: ISO C 9x
1508 fminf NEW: ISO C 9x
1509 fminl NEW: ISO C 9x
1510 fmtmsg NEW: Unix98
1511 fopen64 NEW: LFS
1512 fputc_locked REMOVED
1513 fputs_unlocked NEW: GNU ext.
1514 fread_unlocked NEW: GNU ext.
1515 freopen64 NEW: LFS
1516 fseeko NEW: Unix98
1517 fsetpos64 NEW: LFS
1518 fstatfs64 NEW: LFS
1519 fstatvfs NEW: Unix98
1520 fstatvfs64 NEW: LFS
1521 ftello NEW: Unix98
1522 ftello64 NEW: LFS
1523 ftruncate64 NEW: LFS
1524 ftw64 NEW: LFS
1525 fwrite_unlocked NEW: GNU ext.
1526 gai_strerror NEW: IPv6
1527 gamma_r REMOVED
1528 gammaf_r REMOVED
1529 gammal_r REMOVED
1530 getchar_locked REMOVED
1531 getdate NEW: Unix98
1532 getdate_err NEW: Unix98
1533 getdate_r NEW: GNU ext.
1534 getmsg NEW: STREAMS
1535 getnameinfo NEW: IPv6
1536 getnetname NEW: Secure RPC
1537 getpmsg NEW: STREAMS
1538 getpt NEW: Unix98 PTY
1539 getrlimit64 NEW: LFS
1540 getutxent NEW: Unix98
1541 getutxid NEW: Unix98
1542 getutxline NEW: Unix98
1543 glob64 NEW: GNU ext.
1544 globfree64 NEW: GNU ext.
1545 gnu_get_libc_release NEW: GNU ext.
1546 gnu_get_libc_version NEW: GNU ext.
1547 grantpt NEW: Unix98 PTY
1548 host2netname NEW: Secure RPC
1549 iconv NEW: iconv
1550 iconv_close NEW: iconv
1551 iconv_open NEW: iconv
1552 if_freenameindex NEW: IPv6
1553 if_indextoname NEW: IPv6
1554 if_nameindex NEW: IPv6
1555 if_nametoindex NEW: IPv6
1556 in6addr_any NEW: IPv6
1557 in6addr_loopback NEW: IPv6
1558 inet6_isipv4mapped NEW: IPv6
1559 isastream NEW: STREAMS
1560 iswblank NEW: GNU ext.
1561 key_decryptsession NEW: Secure RPC
1562 key_decryptsession_pk NEW: Secure RPC
1563 key_encryptsession NEW: Secure RPC
1564 key_encryptsession_pk NEW: Secure RPC
1565 key_gendes NEW: Secure RPC
1566 key_get_conv NEW: Secure RPC
1567 key_secretkey_is_set NEW: Secure RPC
1568 key_setnet NEW: Secure RPC
1569 key_setsecret NEW: Secure RPC
1570 llrint NEW: ISO C 9x
1571 llrintf NEW: ISO C 9x
1572 llrintl NEW: ISO C 9x
1573 llround NEW: ISO C 9x
1574 llroundf NEW: ISO C 9x
1575 llroundl NEW: ISO C 9x
1576 log2 NEW: ISO C 9x
1577 log2f NEW: ISO C 9x
1578 log2l NEW: ISO C 9x
1579 lrint NEW: ISO C 9x
1580 lrintf NEW: ISO C 9x
1581 lrintl NEW: ISO C 9x
1582 lround NEW: ISO C 9x
1583 lroundf NEW: ISO C 9x
1584 lroundl NEW: ISO C 9x
1585 lseek64 NEW: LFS
1586 makecontext NEW: Unix98
1587 mempcpy NEW: GNU ext.
1588 mmap64 NEW: LFS
1589 moncontrol REMOVED
1590 modify_ldt NEW: kernel
1591 nan NEW: ISO C 9x
1592 nanf NEW: ISO C 9x
1593 nanl NEW: ISO C 9x
1594 nearbyint NEW: ISO C 9x
1595 nearbyintf NEW: ISO C 9x
1596 nearbyintl NEW: ISO C 9x
1597 netname2host NEW: Secure RPC
1598 netname2user NEW: Secure RPC
1599 nexttoward NEW: ISO C 9x
1600 nexttowardf NEW: ISO C 9x
1601 nexttowardl NEW: ISO C 9x
1602 nftw NEW: Unix98
1603 nftw64 NEW: LFS
1604 open64 NEW: LFS
1605 passwd2des NEW: Secure RPC
1606 pow10 NEW: GNU ext.
1607 pow10f NEW: GNU ext.
1608 pow10l NEW: GNU ext.
1609 pread NEW: Unix98
1610 pread64 NEW: LFS
1611 printf_size NEW: GNU ext.
1612 printf_size_info NEW: GNU ext.
1613 profil_counter REMOVED
1614 pthread_mutexattr_getkind_np REPLACED
1615 pthread_mutexattr_setkind_np REPLACED
1616 ptsname NEW: Unix98 PTY
1617 ptsname_r NEW: Unix98 PTY
1618 putc_locked REMOVED
1619 putchar_locked REMOVED
1620 putgrent NEW: GNU ext.
1621 putmsg NEW: STREAMS
1622 putpmsg NEW: STREAMS
1623 pututxline NEW: Unix98
1624 pwrite NEW: Unix98
1625 pwrite64 NEW: LFS
1626 readdir64 NEW: LFS
1627 readdir64_r NEW: LFS
1628 remquo NEW: ISO C 9x
1629 remquof NEW: ISO C 9x
1630 remquol NEW: ISO C 9x
1631 round NEW: ISO C 9x
1632 roundf NEW: ISO C 9x
1633 roundl NEW: ISO C 9x
1634 rtime NEW: GNU ext.
1635 scalbln NEW: ISO C 9x
1636 scalblnf NEW: ISO C 9x
1637 scalblnl NEW: ISO C 9x
1638 scandir64 NEW: LFS
1639 sendfile NEW: kernel
1640 setcontext NEW: Unix98
1641 setrlimit64 NEW: LFS
1642 setutxent NEW: Unix98
1643 sighold NEW: Unix98
1644 sigignore NEW: Unix98
1645 sigqueue NEW: POSIX.1b
1646 sigrelse NEW: Unix98
1647 sigset NEW: POSIX.1b
1648 sigtimedwait NEW: POSIX.1b
1649 sigwaitinfo NEW: POSIX.1b
1650 sincos NEW: GNU ext.
1651 sincosf NEW: GNU ext.
1652 sincosl NEW: GNU ext.
1653 statfs64 NEW: LFS
1654 statvfs NEW: Unix98
1655 statvfs64 NEW: LFS
1656 strcasestr NEW: GNU ext.
1657 strtoimax NEW: ISO C 9x
1658 strtoumax NEW: ISO C 9x
1659 strverscmp NEW: GNU ext.
1660 svcauthdes_stats NEW: Secure RPC
1661 svcunix_create NEW: sunrpc etx
1662 svcunixfd_create NEW: sunrpc ext
1663 swapcontext NEW: Unix98
1664 tcgetsid NEW: Unix98 PTY
1665 tdestroy NEW: GNU ext.
1666 tgamma NEW: ISO C 9x
1667 tgammaf NEW: ISO C 9x
1668 tgammal NEW: ISO C 9x
1669 tmpfile64 NEW: LFS
1670 trunc NEW: ISO C 9x
1671 truncate64 NEW: LFS
1672 truncf NEW: ISO C 9x
1673 truncl NEW: ISO C 9x
1674 umount2 NEW: kernel
1675 unlockpt NEW: Unix98 PTY
1676 updwtmpx NEW: Unix98
1677 user2netname NEW: Secure RPC
1678 utmpxname NEW: Unix98
1679 versionsort NEW: GNU ext.
1680 versionsort64 NEW: GNU ext.
1681 waitid NEW: Unix98
1682 wcscasecmp NEW: GNU ext.
1683 wcsncasecmp NEW: GNU ext.
1684 wcsnlen NEW: GNU ext.
1685 wcstoimax NEW: ISO C 9x
1686 wcstoll NEW: ISO C 9x
1687 wcstoull NEW: ISO C 9x
1688 wcstoumax NEW: ISO C 9x
1689 wcswcs NEW: Unix98
1690 wordexp NEW: POSIX.2
1691 wordfree NEW: POSIX.2
1692 write_profiling REMOVED
1693 xdecrypt NEW: Secure RPC
1694 xdr_authdes_cred NEW: Secure RPC
1695 xdr_authdes_verf NEW: Secure RPC
1696 xdr_cryptkeyarg NEW: Secure RPC
1697 xdr_cryptkeyarg2 NEW: Secure RPC
1698 xdr_cryptkeyres NEW: Secure RPC
1699 xdr_getcredres NEW: Secure RPC
1700 xdr_key_netstarg NEW: Secure RPC
1701 xdr_key_netstres NEW: Secure RPC
1702 xdr_keybuf NEW: Secure RPC
1703 xdr_keystatus NEW: Secure RPC
1704 xdr_netnamestr NEW: Secure RPC
1705 xdr_sizeof NEW: Secure RPC
1706 xdr_unixcred NEW: sunrpc ext
1707 xencrypt NEW: Secure RPC
1708 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1709 \f
1710 Version 2.0.6
1712 * more bug fixes
1714 \f
1715 Version 2.0.5
1717 * more bug fixes
1719 * inet_ntoa is thread-safe
1721 * updwtmp is moved from libutil to libc
1723 * rewrite of cbrt function
1725 * update of timezone data
1726 \f
1727 Version 2.0.4
1729 * more bug fixes
1730 \f
1731 Version 2.0.3
1733 * more bug fixes
1734 \f
1735 Version 2.0.2
1737 * more bug fixes
1739 * add atoll function
1741 * fix complex problems in Berkeley DB code
1743 * fix math functions
1744 \f
1745 Version 2.0.1
1747 * fixed lots of header problems (especially Linux/GNU specific)
1749 * dynamic loader preserves all registers
1751 * Roland McGrath provided support for handling of auxiliary objects in
1752 the ELF dynamic loader.
1754 * support for parallel builds is improved
1755 \f
1756 Version 2.0
1758 * GNU extensions are no longer declared by default. To enable them you
1759 must define the macro `_GNU_SOURCE' in your program or compile with
1760 `-D_GNU_SOURCE'.
1762 * The library has changed from using GNU ld symbol aliases to using weak
1763 symbols where available. The ELF object file format supports weak
1764 symbols; GNU ld also supports weak symbols in the a.out format. (There
1765 is also now support for other GNU ld extensions in ELF. Use the
1766 `--with-elf' option to configure to indicate you have ELF, and
1767 `--with-gnu-ld' if using GNU ld.) This change resulted in the deletion
1768 of many files which contained only symbol aliases, reducing the size of
1769 the source and the compiled library; many other files were renamed to
1770 less cryptic names previously occupied by the symbol alias files.
1771 There is a new header file <elf.h> for programs which operate on
1772 files in the ELF format.
1774 * Converted to Autoconf version 2, so `configure' has more options.
1775 Run `configure --help' to see the details.
1777 * The library can now be configured to build profiling, highly-optimized
1778 (but undebuggable), and/or shared libraries (ELF with GNU ld only). The
1779 `--enable-profile', `--enable-omitfp', and `--enable-shared' options to
1780 `configure' enable building these extra libraries. The shared library is
1781 built by default when using both ELF and GNU ld. When shared libraries
1782 are enabled, the new library `-ldl' is available for arbitrary run-time
1783 loading of shared objects; its interface is defined in <dlfcn.h>. The
1784 new header file <link.h> gives access to the internals of the run-time
1785 dynamic linker, `ld.so'. The shell script `ldd' is similar to the
1786 application of same name on other systems and it provides information
1787 about dynamically linked binaries.
1789 * The C library now provides the run-time support code for profiling
1790 executables compiled with `-pg'. Programs can control the profiling code
1791 through the interface in <sys/gmon.h>. The `gmon.out' files written by
1792 the GNU C library can be read only by GNU `gprof' (from GNU binutils);
1793 the support for this file format was contributed by David Mosberger-Tang.
1795 * The math code has been replaced with a math library based on fdlibm from
1796 Sun, and modified by JT Conklin and Ulrich Drepper with i387 support, by
1797 Ian Taylor with `float' functions and by Ulrich Drepper with `long double'
1798 functions. The math functions now reside in a separate library, so
1799 programs using them will need to use `-lm' their linking commands.
1801 * John C. Bowman contributed optimized ix87 assembler inline functions.
1803 * Ulrich Drepper has contributed support for an `/etc/nsswitch.conf'
1804 mechanism similar to that found in Solaris 2. This is now used for the
1805 group, passwd, hosts, networks, services, protocols, rpc, ethers,
1806 shadow, netgroup, publickey, and alias databases. The `nsswitch.conf'
1807 file controls what services are used for each individual database. This
1808 works by loading shared libraries with names specified in `nsswitch.conf',
1809 so service modules can be changed or added at any time without even
1810 relinking any program. Currently there are the file, db, and NIS based
1811 NSS services available.
1813 * The new functions `strtoq' and `strtouq' parse integer values from
1814 strings, like `strtol' and `strtoul', but they return `long long int' and
1815 `unsigned long long int' values, respectively (64-bit quantities).
1817 * The new functions `strtof' and `strtold' parse floating-point values from
1818 strings, like `strtod', but they return `float' and `long double' values,
1819 respectively (on some machines `double' and `long double' are the same).
1821 * Ulrich Drepper has contributed new implementations of the floating-point
1822 printing and reading code used in the `printf' family of functions and
1823 `strtod', `strtof', and `strtold'. These new functions are perfectly
1824 accurate, and much faster than the old ones.
1826 * The implementation of the POSIX locale model was completely rewritten by
1827 Ulrich Drepper. This includes the new programs `localedef' and `locale'
1828 to compile the POSIX locale definition.
1830 * The former dummy implementations of the strcoll and strxfrm function are
1831 now replaced by fully functional code contributed by Ulrich Drepper. The
1832 collation information comes from the POSIX locale definitions.
1834 * The new header <langinfo.h> defines an interface for accessing
1835 various locale-dependent data (using the locale chosen with `setlocale').
1837 * Ulrich Drepper has contributed a new suite of functions for operation on
1838 wide-character and multibyte-character strings, in <wchar.h>;
1839 and classification and case conversion of wide characters, in <wctype.h>.
1840 These new functions are conforming to the ISO C, Amendement 1 specification.
1842 * There is now a second implementation of the standard I/O library available.
1843 It comes from GNU libg++ as was written by Per Bothner, heavily modified
1844 by Hongjiu Lu and made thread safe by Ulrich Drepper.
1846 * You can now use positional parameter specifications in format strings
1847 for the `printf' and `scanf' families of functions. For example,
1848 `printf ("Number %2$d, Mr %1$s\n", "Jones", 6);'' prints
1849 ``Number 6, Mr Jones''. This is mainly useful when providing different
1850 format strings for different languages, whose grammars may dictate
1851 different orderings of the values being printed. To support this
1852 feature, the interface for `register_printf_handler' has changed; see
1853 the header file <printf.h> for details.
1855 * The `printf' and `scanf' families of functions now understand a new
1856 formatting flag for numeric conversions: the ' flag (e.g. %'d or %'f) says
1857 to group numbers as indicated by the locale; for `scanf' and friends, this
1858 says to accept as valid only a number with all the proper grouping
1859 separators in the right places. In the default "C" locale, numbers are
1860 not grouped; but locales for specific countries will define the usual
1861 conventions (i.e. separate thousands with `,' in the US locale).
1863 * The pgrp functions have been regularized, slightly incompatibly but much
1864 less confusingly. The core functions are now `getpgid' and `setpgid',
1865 which take arguments for the PID to operate on; the POSIX.1 `getpgrp' (no
1866 argument) and BSD `setpgrp' (identical to `setpgid') functions are
1867 provided for compatibility. There is no longer an incompatible `getpgrp'
1868 with an argument declared under _BSD_SOURCE; no BSD code uses it.
1870 * The new header file <fts.h> and suite of functions simplify programs that
1871 operate on directory trees. This code comes from 4.4 BSD.
1873 * The resolver code has been updated from the BIND 4.9.5-P1 release.
1874 Parts of the code were heavily modified by Ulrich Drepper to fit in the
1875 NSS scheme used in glibc.
1877 * There is a new malloc debugging hook `__memalign_hook'.
1879 * There are new typedefs `ushort' for `unsigned short int' and `uint' for
1880 `unsigned int' in <sys/types.h>. These are for compatibility only and
1881 their use is discouraged.
1883 * The `-lmcheck' library to enable standard malloc debugging hooks is now
1884 done differently, so that it works even without GNU ld.
1886 * New function `euidaccess' checks allowed access to a file like `access',
1887 but using the effective IDs instead of the real IDs.
1889 * The time zone data files have been updated for the latest and greatest
1890 local time conventions of the countries of the world.
1892 * The new function `dirfd' extracts the file descriptor used by a DIR stream;
1893 see <dirent.h>.
1895 * The new functions `ecvt', `fcvt', and `gcvt' provide an obsolete interface
1896 for formatting floating-point numbers. They are provided only for
1897 compatibility; new programs should use `sprintf' instead. There are
1898 also equivalent function for the `long double' floating-point type and
1899 all functions also exist in a reentrant form.
1901 * The new auxiliary library `-lutil' from 4.4 BSD contains various
1902 functions for maintaining the login-record files (primarily of use to
1903 system programs such as `login'), and convenient functions for
1904 allocating and initializing a pseudo-terminal (pty) device.
1906 * Ulrich Drepper has contributed new support for System V style
1907 shared memory and IPC on systems that support it.
1909 * Ulrich Drepper has contributed several miscellaneous new functions found
1910 in System V: The `hsearch' family of functions provide an effective
1911 implementation of hash tables; `a64l' and `l64a' provide a very simple
1912 binary to ASCII mapping; `drand48' and friends provide a 48-bit random
1913 number generator.
1915 * Ulrich Drepper has contributed new reentrant counterparts for the
1916 `random' and `hsearch' families of functions; `random_r', `hsearch_r', etc.
1918 * Ulrich Drepper has contributed new, highly-optimized versions of several
1919 string functions for the i486/Pentium family of processors.
1921 * Ulrich Drepper has updated the Linux-specific code, based largely
1922 on work done in Hongjiu Lu's version of GNU libc for Linux.
1923 The GNU library now supports Linux versions 2.0.10 and later,
1924 using the ELF object file format (i[3456]86-*-linux).
1926 * Andreas Schwab has ported the C library to Linux/m68k (m68k-*-linux).
1928 * David Mosberger-Tang and Richard Henderson have ported the C library
1929 to Linux/Alpha (alpha-*-linux). Richard Henderson contributed the
1930 dynamic linking support for ELF/Alpha.
1932 * Richard Henderson contributed several Alpha optimized assembler function
1933 for arithmetic and string handling.
1935 * Ulrich Drepper has contributed a new set of message catalog functions to
1936 support multiple languages using the <libintl.h> interface, for use with
1937 his new package GNU gettext. Translation volunteers have contributed
1938 catalogs of the library's messages in Spanish, German, and Korean.
1940 * For compatibility with XPG4, Ulrich Drepper has contributed the `gencat'
1941 program and the `catgets' function for reading the catalog files it
1942 creates. (The <libintl.h> interface is preferred; we include the
1943 <nl_types.h> interface using `catgets' only for source compatibility with
1944 programs already written to use it.)
1946 * New header file <values.h> gives SVID-compatible names for <limits.h>
1947 constants.
1949 * Various new macros, declarations, and small header files for compatibility
1950 with 4.4 BSD.
1952 * New function `group_member' is a convenient way to check if a process has
1953 a given effective group ID.
1955 * When using GCC 2.7 and later, the socket functions are now declared in a
1956 special way so that passing an argument of type `struct sockaddr_in *',
1957 `struct sockaddr_ns *', or `struct sockaddr_un *' instead of the generic
1958 `struct sockaddr *' type, does not generate a type-clash warning.
1960 * New function `error' declared in header file <error.h> is a convenient
1961 function for printing error messages and optionally exiting; this is the
1962 canonical function used in GNU programs. The new functions `err', `warn',
1963 and friends in header file <err.h> are the canonical 4.4 BSD interface for
1964 doing the same thing.
1966 * The <glob.h> interface has several new flags from 4.4 BSD that extend the
1967 POSIX.2 `glob' function to do ~ and {...} expansion.
1969 * New function `unsetenv' complements `setenv' for compatibility with 4.4 BSD.
1970 `clearenv' which is used in POSIX.9 is also available.
1972 * New function `getsid' returns session ID number on systems that support it.
1974 * We have incorporated the 4.4 BSD `db' library (version 1.85). New header
1975 files <db.h> and <mpool.h> provide a rich set of functions for several
1976 types of simple databases stored in memory and in files, and <ndbm.h> is
1977 an old `ndbm'-compatible interface using the `db' functions. Link with
1978 `-ldb' to get these functions.
1980 * New macro `strdupa' copies a string like `strdup', but uses local stack
1981 space from `alloca' instead of dynamic heap space from `malloc'.
1983 * New function `strnlen' is like `strlen' but searches only a given maximum
1984 number of characters for the null terminator. `stpncpy', `strndup' and
1985 `strndupa' are similar variants for the `stpcpy', `strdup' and `strdupa'
1986 function.
1988 * New function `statfs' in header <sys/statfs.h>.
1990 * The new <argz.h> and <envz.h> interfaces contributed by Miles Bader
1991 provide convenient functions for operating on blocks of null-terminated
1992 strings.
1994 * A new suite of functions in <utmp.h> handle all the details of reading
1995 and writing the utmp file.
1997 * An implementation of the NIS/YP(tm) based NSS service was contributed by
1998 Thorsten Kukuk.
2000 * Paul Eggert and Ulrich Drepper modified the `strftime' function to be
2001 completely POSIX compliant and also implemented the extended functionality
2002 to handle alternate digit representation and alternate era date formats.
2004 * Ulrich Drepper provided an implementation of the `strptime' function
2005 defined in XPG4.2 which transforms a string into a `struct tm' value.
2007 * Paul Eggert provided the tzselect shell script as part of the timezone
2008 code. The shell script makes it easy to select the correct timezone
2009 specification.
2011 * The implementation of the malloc family of functions is completely replaced
2012 by a new implementation by Doug Lea with many improvements by Wolfram Gloger.
2013 The implementation uses the mmap function (if available) and it is
2014 optimized for the use in multi threaded programs.
2016 * Ulrich Drepper contributed a MD5 "encryption" for the crypt family of
2017 functions. This new functionality is usable by specifying a special
2018 salt string and it is compatible with implementation on *BSD systems.
2020 * Lots of functions from the XPG4.2 standard were added by Ulrich Drepper:
2021 `getsubopt' to handle second level command line options, `bsd_signal'
2022 to access BSD style `signal' functionality, the obsolete `regexp' style
2023 expression matcher.
2025 * the `lchown' function is available on system which support this
2026 functionality.
2028 * The implementation of the shadow password handling function was contributed
2029 by Ulrich Drepper.
2031 * David Mosberger-Tang changed the SunRPC implementation to be 64bit safe.
2033 * POSIX.1g support was added. The <sys/select.h> header is available,
2034 `isfdtype' and `pselect' are implemented. Craig Metz contributed an
2035 implementation of `getaddrinfo'.
2036 \f
2037 Version 1.09
2039 * For cross-compilation you should now set `BUILD_CC' instead of `HOST_CC'.
2041 * New header file <fstab.h> and new functions `getfsspec', `getfsent' and
2042 friends, for parsing /etc/fstab. This code comes from 4.4 BSD.
2044 * The new function `daemon' from 4.4 BSD is useful for server programs that
2045 want to put themselves in the background.
2047 * Joel Sherrill has contributed support for several standalone boards that
2048 run without an operating system.
2050 * `printf', `scanf' and friends now accept a `q' type modifier for long
2051 long int as well as `ll'. Formats using these might be `%qu' or `%lld'.
2053 * All of the code taken from BSD (notably most of the math and networking
2054 routines) has been updated from the BSD 4.4-Lite release.
2056 * The resolver code has been updated from the BIND-4.9.3-BETA9 release.
2058 * The new functions `getdomainname' and `setdomainname' fetch or change the
2059 YP/NIS domain name. These are system calls which exist on systems which
2060 have YP (aka NIS).
2062 * The time zone data files have been updated for the latest international
2063 conventions.
2065 * The SunRPC programs `portmap' and `rpcinfo' are now installed in
2066 $(sbindir) (usually /usr/local/sbin) instead of $(bindir).
2067 \f
2068 Version 1.08
2070 * The C library now includes support for Sun RPC, from Sun's free
2071 RPCSRC-4.0 distribution. The `portmap', `rpcinfo', and `rpcgen' programs
2072 are included. (There is still no support for YP.)
2074 * Tom Quinn has contributed a port of the C library to SGI machines running
2075 Irix 4 (mips-sgi-irix4).
2077 * The new `lockf' function is a simplified interface to the locking
2078 facilities of `fcntl', included for compatibility.
2080 * New time functions `timegm', `timelocal', and `dysize' for compatibility.
2082 * New header file <sys/timeb.h> and new function `ftime' for compatibility.
2084 * New header files <poll.h> and <sys/poll.h> and new function `poll' for
2085 compatibility.
2087 * The error message printed by `assert' for a failed assertion now includes
2088 the name of the program (if using GNU ld) and the name of the calling
2089 function (with versions of GCC that support this).
2091 * The `psignal' function is now declared in <signal.h>, not <stdio.h>.
2093 * The library now includes the <sys/mman.h> header file and memory
2094 management functions `mmap', `munmap', `mprotect', `msync', and
2095 `madvise', on systems that support those facilities.
2097 * The interface for `mcheck' has changed slightly: the function called to
2098 abort the program when an allocation inconsistency is detected now takes
2099 an argument that indicates the type of failure. The new function
2100 `mprobe' lets you request a consistency check for a particular block at
2101 any time (checks are normally done only when you call `free' or `realloc'
2102 on a block).
2104 * It is now possible to easily cross-compile the C library, building on one
2105 system a library to run on another machine and/or operating system. All
2106 you need to do is set the variable `HOST_CC' in `configparms' to the
2107 native compiler for programs to run on the machine you are building on (a
2108 few generator programs are used on Unix systems); set `CC' to the
2109 cross-compiler.
2111 * The new function `fexecve' (only implemented on the GNU system) executes
2112 a program file given a file descriptor already open on the file.
2113 \f
2114 Version 1.07
2116 * Brendan Kehoe has contributed most of a port to the DEC Alpha
2117 running OSF/1 (alpha-dec-osf1). He says it is 75% complete.
2119 * You can set the variable `libprefix' in `configparms' to specify a prefix
2120 to be prepended to installed library files; this makes it easy to install
2121 the GNU C library to be linked as `-lgnuc' or whatever.
2123 * The new `stpncpy' is a cross between `stpcpy' and `strncpy': It
2124 copies a limited number of characters from a string, and returns the
2125 address of the last character written.
2127 * You no longer need to check for whether the installed `stddef.h' is
2128 compatible with the GNU C library. configure now checks for you.
2130 * You can now define a per-stream `fileno' function to convert the
2131 stream's cookie into an integral file descriptor.
2133 * ``malloc (0)'' no longer returns a null pointer. Instead, it
2134 allocates zero bytes of storage, and returns a unique pointer which
2135 you can pass to `realloc' or `free'. The behavior is undefined if
2136 you dereference this pointer.
2138 * The C library now runs on Sony NEWS m68k machines running either
2139 NewsOS 3 or NewsOS 4.
2141 * The new `syscall' function is a system-dependent primitive function
2142 for invoking system calls. It has the canonical behavior on Unix
2143 systems, including unreliable return values for some calls (such as
2144 `pipe', `fork' and `getppid').
2146 * The error code `EWOULDBLOCK' is now obsolete; it is always defined
2147 to `EAGAIN', which is the preferred name. On systems whose kernels
2148 use two distinct codes, the C library now translates EWOULDBLOCK to
2149 EAGAIN in every system call function.
2150 \f
2151 Version 1.06
2153 * The GNU C Library Reference Manual is now distributed with the library.
2154 `make dvi' will produce a DVI file of the printed manual.
2155 `make info' will produce Info files that you can read on line using C-h i
2156 in Emacs or the `info' program.
2157 Please send comments on the manual to bug-glibc-manual@gnu.org.
2159 * The library now supports SVR4 on i386s (i386-unknown-sysv4).
2161 * Brendan Kehoe has contributed a port to Sun SPARCs running Solaris 2.
2163 * Jason Merrill has contributed a port to the Sequent Symmetry running
2164 Dynix version 3 (i386-sequent-dynix).
2166 * The library has been ported to i386s running SCO 3.2.4 (also known as SCO
2167 ODT 2.0; i386-unknown-sco3.2.4) or SCO 3.2 (i386-unknown-sco3.2).
2169 * New function `memory_warnings' lets you arrange to get warnings when
2170 malloc is running out of memory to allocate, like Emacs gives you.
2172 * The C library now contains the relocating allocator used in Emacs 19 for
2173 its editing buffers. This allocator (ralloc) minimizes allocation
2174 overhead and fragmentation by moving allocated regions around whenever it
2175 needs to. You always refer to a ralloc'd region with a "handle" (a
2176 pointer to a pointer--an object of type `void **').
2178 * There is a new `printf' format: `%m' gives you the string corresponding
2179 to the error code in `errno'.
2181 * In `scanf' formats, you can now use `%as' or `%a[' to do the normal `%s'
2182 or `%[' conversion, but instead of filling in a fixed-sized buffer you
2183 pass, the `a' modifier says to fill in a `char **' you pass with a
2184 malloc'd string.
2186 * The `fnmatch' function supports the new flag bits `FNM_LEADING_DIR' and
2187 `FNM_CASEFOLD'. `FNM_LEADING_DIR' lets a pattern like `foo*' match a
2188 name like `foo/bar'. `FNM_CASEFOLD' says to ignore case in matching.
2190 * `mkstemp' is a traditional Unix function to atomically create and open a
2191 uniquely-named temporary file.
2192 \f
2193 Version 1.05
2195 * The standard location for the file that says what the local timezone is
2196 has changed again. It is now `/usr/local/etc/localtime' (or more
2197 precisely, `${prefix}/etc/localtime') rather than `/etc/localtime'.
2199 * The distribution no longer contains any files with names longer than 14
2200 characters.
2202 * `struct ttyent' has two new flag bits: TTY_TRUSTED and TTY_CONSOLE.
2203 These are set by the new `trusted' and `console' keywords in `/etc/ttys'.
2205 * New functions `ttyslot' and `syslog' from 4.4 BSD.
2206 \f
2207 Version 1.04
2209 * The configuration process has changed quite a bit. The `configure'
2210 script is now used just like the configuration scripts for other GNU
2211 packages. The `sysdeps' directory hierarchy is much rearranged.
2212 The file `INSTALL' explains the new scheme in detail.
2214 * The header files no longer need to be processed into ANSI C and
2215 traditional C versions. There is just one set of files to install, and
2216 it will work with ANSI or old C compilers (including `gcc -traditional').
2218 * Brendan Kehoe and Ian Lance Taylor have ported the library to the
2219 MIPS DECStation running Ultrix 4.
2221 * The Sun 4 startup code (crt0) can now properly load SunOS 4 shared libraries.
2222 Tom Quinn contributed the initial code. The GNU C library can NOT yet be
2223 made itself into a shared library.
2225 * Yet further improved support for the i386, running 4.3 BSD-like systems
2226 (such as Mach 3 with the Unix single-server), or System V.
2228 * New function `strncasecmp' to do case-insensitive string comparison
2229 with limited length.
2231 * New function `strsep' is a reentrant alternative to `strtok'.
2233 * New functions `scandir' and `alphasort' for searching directories.
2235 * New function `setenv' is a better interface to `putenv'.
2237 * Ian Lance Taylor has contributed an implementation of the SVID `ftw'
2238 function for traversing a directory tree.
2240 * The GNU obstack package is now also part of the C library.
2241 The new function `open_obstack_stream' creates a stdio stream that
2242 writes onto an obstack; `obstack_printf' and `obstack_vprintf' do
2243 formatted output directly to an obstack.
2245 * Miscellaneous new functions: reboot, nice, sigaltstack (4.4 BSD only),
2246 cfmakeraw, getusershell, getpass, swab, getttyent, seteuid, setegid.
2248 * `FNM_FILE_NAME' is another name for `FNM_PATHNAME', used with `fnmatch'.
2250 * The new functions `strfry' and `memfrob' do mysterious and wonderful
2251 things to your strings.
2253 * There are some new test programs: test-fseek, testmb, and testrand.
2255 * Some work has been done to begin porting the library to 4.4 BSD and Linux.
2256 These ports are not finished, but are a good starting place for really
2257 supporting those systems.
2259 * `/etc/localtime' is now the standard location for the file that says what
2260 the local timezone is, rather than `/usr/local/lib/zoneinfo/localtime'.
2261 This follows the general principle that `/etc' is the place for all local
2262 configuration files.
2264 * The C library header files now use `extern "C"' when used by the C++
2265 compiler, so the C library should now work with C++ code.
2267 * The header file <bstring.h> is gone. <string.h> now declares bcopy,
2268 bcmp, bzero, and ffs. (Update: nowadays these functions are declared
2269 in <strings.h>.)
2271 * Mike Haertel (of GNU e?grep and malloc fame) has written a new sorting
2272 function which uses the `merge sort' algorithm, and is said to be
2273 significantly faster than the old GNU `qsort' function. Merge sort is
2274 now the standard `qsort' function. The new algorithm can require a lot
2275 of temporary storage; so, the old sorting function is called when the
2276 required storage is not available.
2278 * The C library now includes Michael Glad's Ultra Fast Crypt, which
2279 provides the Unix `crypt' function, plus some other entry points.
2281 * The code and header files taken from 4.4 BSD have been updated with the
2282 latest files released from Berkeley.
2283 \f
2284 ----------------------------------------------------------------------
2285 Copyright information:
2287 Copyright (C) 1992-2013 Free Software Foundation, Inc.
2289 Permission is granted to anyone to make or distribute verbatim copies
2290 of this document as received, in any medium, provided that the
2291 copyright notice and this permission notice are preserved,
2292 thus giving the recipient permission to redistribute in turn.
2294 Permission is granted to distribute modified versions
2295 of this document, or of portions of it,
2296 under the above conditions, provided also that they
2297 carry prominent notices stating who last changed them.
2298 \f
2299 Local variables:
2300 version-control: never
2301 fill-column: 76
2302 End: