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1 GNU C Library NEWS -- history of user-visible changes. 2012-1-27
2 Copyright (C) 1992-2009, 2010, 2011, 2012 Free Software Foundation, Inc.
3 See the end for copying conditions.
5 Please send GNU C library bug reports via <http://sources.redhat.com/bugzilla/>
6 using `glibc' in the "product" field.
7 \f
8 Version 2.16
10 * The following bugs are resolved with this release:
12 174, 208, 350, 369, 411, 706, 766, 887, 2074, 2541, 2547, 2548, 2550,
13 2551, 2552, 2553, 2554, 2562, 2563, 2565, 2566, 2570, 2576, 2636, 2678,
14 3335, 3440, 3748, 3768, 3866, 3868, 3906, 3976, 3992, 4026, 4108, 4596,
15 4822, 5077, 5461, 5805, 5993, 6471, 6486, 6578, 6649, 6730, 6770, 6794,
16 6884, 6890, 6894, 6895, 6907, 6911, 6959, 7064, 9739, 9902, 10110,
17 10135, 10140, 10153, 10210, 10254, 10346, 10375 10545, 10716, 11174,
18 11322, 11365, 11451, 11494, 11521, 11677, 11837, 11959, 12047, 12097,
19 12193, 12297, 12298, 12301, 12340, 12354, 13058, 13361, 13525, 13526,
20 13527, 13528, 13529, 13530, 13531, 13532, 13533, 13547, 13551, 13552,
21 13553, 13555, 13556, 13559, 13563, 13566, 13583, 13592, 13594, 13613,
22 13618, 13637, 13656, 13658, 13673, 13691, 13695, 13704, 13705, 13706,
23 13726, 13738, 13739, 13750, 13758, 13760, 13761, 13775, 13786, 13787,
24 13792, 13806, 13824, 13840, 13841, 13844, 13846, 13851, 13852, 13854,
25 13871, 13872, 13873, 13879, 13883, 13884, 13885, 13886, 13892, 13895,
26 13908, 13910, 13911, 13912, 13913, 13914, 13915, 13916, 13917, 13918,
27 13919, 13920, 13921, 13922, 13923, 13924, 13926, 13927, 13928, 13938,
28 13941, 13942, 13954, 13955, 13956, 13963, 13967, 13968, 13970, 13973,
29 13979, 13983, 13986, 14012, 14027, 14033, 14034, 14040, 14043, 14044,
30 14049, 14053, 14055, 14059, 14064, 14080, 14083, 14103, 14104, 14109,
31 14122, 14123
33 * ISO C11 support:
35 + define static_assert
37 + do not declare gets
39 + declare at_quick_exit and quick_exit also for ISO C11
41 + aligned_alloc. NB: The code is deliberately allows the size parameter
42 to not be a multiple of the alignment. This is a moronic requirement
43 in the standard but it is only a requirement on the caller, not the
44 implementation.
46 + timespec_get added
48 + uchar.h support added
50 + CMPLX, CMPLXF, CMPLXL added
52 Implemented by Ulrich Drepper.
54 * Support for the IA-64 has been moved to ports.
56 * Remove support for anything but ELF binary format
58 * Checking versions of poll, ppoll added.
59 Implemented by Ulrich Drepper.
61 * More generic and 64-bit performance optimizations to math functions.
62 Implemented by Ulrich Drepper.
64 * New configure option --enable-obsolete-rpc makes the deprecated RPC
65 headers and functions available at compile time as they were before
66 version 2.14. This option will be removed at some time in the future
67 after the TI-RPC library becomes fully sufficient for the needs of
68 existing applications.
70 * Compatibility code for Linux kernel versions before 2.2 has been removed.
71 Note that glibc is not expected to work with any Linux kernel version
72 before 2.6.
74 * New locales: mag_IN
75 \f
76 Version 2.15
78 * The following bugs are resolved with this release:
80 6779, 6783, 9696, 10103, 10709, 11589, 11929, 12403, 12786, 12840, 12847,
81 12868, 12852, 12874, 12885, 12892, 12906, 12907, 12922, 12935, 12962,
82 13007, 13021, 13061, 13062, 13067, 13068, 13085, 13088, 13090, 13092,
83 13096, 13114, 13118, 13123, 13134, 13138, 13147, 13150, 13166, 13179,
84 13185, 13189, 13192, 13268, 13276, 13282, 13291, 13305, 13328, 13335,
85 13337, 13344, 13358, 13367, 13413, 13416, 13423, 13439, 13446, 13472,
86 13484, 13506, 13515, 13523, 13524, 13538, 13540
88 * New program pldd to list loaded object of a process
89 Implemented by Ulrich Drepper.
91 * Add nss_db support back to glibc. No more dependency on Berkeley db
92 and support for initgroups lookups.
93 Implemented by Ulrich Drepper.
95 * Optimized strcpy, strncpy, stpcpy, stpncpy for SSE2 and SSSE3 on x86-32.
96 Contributed by HJ Lu.
98 * Improved strcpy, strncpy, stpcpy, stpncpy for SSE2 and SSSE3 on x86-64.
99 Contributed by HJ Lu.
101 * Optimized strcat, strncat on x86-64 and optimized wcscmp, wcslen, strnlen
102 on x86-32 and x86-64.
103 Contributed by Liubov Dmitrieva.
105 * Optimized strchr and strrchr for SSE on x86-32.
106 Contributed by Liubov Dmitrieva.
108 * Optimized memchr, memrchr, rawmemchr, memcmp, wmemcmp, wcschr, wcscpy
109 for x86-64 and x86-32.
110 Contributed by Liubov Dmitrieva.
112 * New interfaces: scandirat, scandirat64
113 Implemented by Ulrich Drepper.
115 * Checking versions of FD_SET, FD_CLR, and FD_ISSET added.
116 Implemented by Ulrich Drepper.
118 * nscd now also caches the netgroup database.
119 Implemented by Ulrich Drepper.
121 * Integrate libm with gcc's -ffinite-math-only option.
122 Implemented by Ulrich Drepper.
124 * Lots of generic, 64-bit, and x86-64-specific performance optimizations
125 to math functions. Implemented by Ulrich Drepper.
127 * Optimized strcasecmp and strncasecmp for AVX on x86-64.
128 Implemented by Ulrich Drepper.
130 * New Linux interfaces: process_vm_readv, process_vm_writev
132 * Optimized strcasecmp and strncasecmp for SSSE3 and SSE4.2 on x86-32.
133 Implemented by Ulrich Drepper.
135 * Optimized nearbyint and strcasecmp for PPC.
136 Implemented by Adhemerval Zanella.
138 * New locales: bho_IN, unm_US, es_CU, ta_LK
139 \f
140 Version 2.14
142 * The following bugs are resolved with this release:
144 386, 6420, 7101, 9730, 9732, 9809, 10138, 10149, 10157, 11099, 11257,
145 11258, 11487, 11532, 11558, 11578, 11634, 11653, 11668, 11697, 11724,
146 11781, 11799, 11820, 11837, 11857, 11869, 11892, 11895, 11901, 11945,
147 11947, 11952, 11987, 12052, 12083, 12158, 12178, 12200, 12346, 12350,
148 12393, 12420, 12432, 12445, 12449, 12453, 12454, 12460, 12469, 12489,
149 12509, 12510, 12511, 12518, 12527, 12541, 12545, 12551, 12582, 12583,
150 12587, 12597, 12601, 12611, 12625, 12626, 12631, 12650, 12653, 12655,
151 12660, 12671, 12681, 12684, 12685, 12711, 12713, 12714, 12717, 12723,
152 12724, 12734, 12738, 12746, 12766, 12775, 12777, 12782, 12788, 12792,
153 12795, 12811, 12813, 12814, 12841
155 * The RPC implementation in libc is obsoleted. Old programs keep working
156 but new programs cannot be linked with the routines in libc anymore.
157 Programs in need of RPC functionality must be linked against TI-RPC.
158 The TI-RPC implementation is IPv6 enabled and there are other benefits.
160 Visible changes of this change include (obviously) the inability to link
161 programs using RPC functions without referencing the TI-RPC library and the
162 removal of the RPC headers from the glibc headers.
163 Implemented by Ulrich Drepper.
165 * New Linux interfaces: clock_adjtime, name_to_handle_at, open_by_handle_at,
166 syncfs, setns, sendmmsg
168 * New locales: os_RU, bem_ZA, en_ZA, ff_SN, sw_KE, sw_TZ, lb_LU, wae_CH,
169 yue_HK, lij_IT, mhr_RU
171 * New encodings: CP770, CP771, CP772, CP773, CP774
173 * New program sotruss to trace calls through PLTs
174 Implemented by Ulrich Drepper.
176 * The malloc hook implementation is marked deprecated and will be removed
177 from the default implementation in the next version. The design never
178 worked ever since the introduction of threads. Even programs which do
179 not create threads themselves can use multiple threads created internally.
180 \f
181 Version 2.13
183 * The following bugs are resolved with this release:
185 3268, 6812, 7066, 10085, 10484, 10563, 10851, 11149, 11155, 11577, 11611,
186 11640, 11655, 11701, 11840, 11856, 11883, 11903, 11904, 11968, 11979,
187 12005, 12037, 12067, 12077, 12078, 12092, 12093, 12107, 12108, 12113,
188 12140, 12159, 12167, 12191, 12194, 12201, 12204, 12205, 12207, 12348,
189 12378, 12394, 12397
191 * New Linux interfaces: prlimit, prlimit64, fanotify_init, fanotify_mark
193 * POWER7 optimizations: memset, memcmp, strncmp
195 * New optimized string functions for x86-64: strnlen (SSE2),
196 strcasecmp (SSE2, SSSE3, SSE4.2), strncasecmp (SSE2, SSSE3, SSE4.2)
197 Implemented by Ulrich Drepper.
198 \f
199 Version 2.12
201 * The following bugs are resolved with this release:
203 3662, 4457, 5553, 10162, 10401, 10414, 10554, 10824, 10864, 10915, 10918,
204 10936, 10939, 10958, 10968, 10969, 10972, 10992, 11000, 11001, 11007,
205 11010, 11027, 11039, 11040, 11041, 11043, 11046, 11056, 11070, 11093,
206 11115, 11120, 11125, 11126, 11127, 11134, 11141, 11149, 11183, 11184,
207 11185, 11186, 11187, 11188, 11189, 11190, 11191, 11192, 11193, 11194,
208 11200, 11230, 11235, 11242, 11254, 11258, 11271, 11272, 11276, 11279,
209 11287, 11292, 11319, 11332, 11333, 11387, 11389, 11390, 11394, 11397,
210 11410, 11438, 11449, 11470, 11471, 11520, 11537, 11538, 11571
212 * New interfaces: pthread_getname_np, pthread_setname_np
214 * New Linux interface: recvmmsg
216 * STT_GNU_IFUNC implemented for Sparc by David Miller.
218 * The dynamic linker now recognizes supported ABI versions from the
219 EI_ABIVERSION field in the ELF header.
220 Implemented by Ulrich Drepper.
222 * New NIS mode selector ADJUNCT_AS_SHADOW. The passwd.adjunct.byname table
223 will not be used to fill in password fields in the passwd.byname replies.
224 Instead it is used to synthesize the shadow.byname table, should it be
225 missing. This is a useful mode in some installations involving Solaris.
226 Implemented by Ulrich Drepper.
228 * New locales: kok_IN, sq_MK, cv_RU
229 \f
230 Version 2.11
232 * The following bugs are resolved with this release:
234 3270, 7094, 9924, 9986, 10011, 10085, 10107, 10159, 10162, 10166, 10183,
235 10195, 10196, 10200, 10203, 10207, 10211, 10213, 10217, 10221, 10229,
236 10262, 10286, 10312, 10315, 10319, 10349, 10360, 10391, 10402, 10416,
237 10418, 10422, 10425, 10446, 10448, 10452, 10540, 10553, 10560, 10564,
238 10609, 10643, 10692, 10713, 10717, 10730, 10731, 10742, 10780, 10784,
239 10789, 10817, 10823, 10840, 10847
241 * New interfaces: execvpe, pthread_sigqueue, mkstemps, mkstemps64, mkostemps,
242 mkostemps64
243 Implemented by Ulrich Drepper.
245 * Checking version of longjmp added that fails if an uninitialized stack
246 frame would be created. Implemented by Ulrich Drepper.
248 * STT_GNU_IFUNC is now supported in static executables.
249 Implemented by H.J. Lu.
251 * STT_GNU_IFUNC implemented for PPC by Alan Modra.
253 * New optimized string functions for x86-64: strstr, strcasestr, memcmp,
254 strcspn, strpbrk, strspn, strcpy, stpcpy, strncpy, strcmp (SSE2, SSE4.2),
255 strncmp (SSE2, SSE4.2), strchr (SSE4.2), strrchr (SSE4.2).
256 Contributed by H.J. Lu.
258 strlen, rawmemchr, strcmp (SSSE3), strncmp (SSSE3).
259 Implemented by Ulrich Drepper.
261 * New optimized string functions for x86: strlen, strcspn, strspn, strpbrk,
262 strstr, strcasestr.
263 Contributed by H.J. Lu.
265 * Support for fma instruction in AVX on x86-64.
266 Implemented by H.J. Lu and Ulrich Drepper.
268 * AVX support in x86-64 auditing support in ld.so.
269 Implemented by H.J. Lu.
271 * STB_GNU_UNIQUE support added.
272 Implemented by Ulrich Drepper.
274 * Implement second fallback mode for optimized DNS lookup for even more
275 broken environments. If two requests from the same port are not
276 handled correctly close the socket and open a new one before sending
277 the second request. The 'single-request-reopen' option in /etc/resolv.conf
278 can be used to select this mode right away, instead of rediscovering the
279 necessity is every process again.
280 Implemented by Ulrich Drepper.
282 * New resolver flag RES_USE_DNSSEC to enable use of verified lookup.
283 Implemented by Adam Tkac.
285 * Optimized iconv conversions for S390x.
286 Implemented by Andreas Krebbel.
288 * Using condvars with PI mutexes is now more efficient due to kernel
289 support for requeueing to PI futexes. NPTL support added for x86-64.
290 Implemented by Ulrich Drepper.
292 * New locales: ps_AF, my_MM
293 \f
294 Version 2.10
296 * The following bugs are resolved with this release:
298 697, 5381, 5807, 6411, 6545, 7040, 7058, 7067, 7080, 7083, 7095, 7098,
299 9677, 9694, 9697, 9701, 9704, 9705, 9706, 9720, 9726, 9730, 9733, 9736,
300 9741, 9750, 9753, 9759, 9781, 9791, 9793, 9823, 9833, 9844, 9880, 9881,
301 9891, 9893, 9895, 9913, 9916, 9920, 9948, 9955, 9957, 9963, 9985, 10052,
302 10069, 10086, 10087, 10090, 10092, 10093, 10100, 10118, 10128
304 * New interfaces: preadv, preadv64, pwritev, pwritev64, malloc_info
305 Implemented by Ulrich Drepper.
307 * New Linux interfaces: accept4, fallocate, fallocate64.
308 Implemented by Ulrich Drepper.
310 * Correct declarations of string function when used in C++ code. This
311 could lead to compile errors for invalid C++ code.
313 * XPG7/POSIX 2008 compilation environment. Many GNU-specific functions are
314 now in POSIX.
316 * New POSIX 2008 interface: psiginfo
317 Implemented by Ulrich Drepper.
319 * New ISO C++1x interfaces: quick_exit, at_quick_exit
320 Implemented by Ulrich Drepper.
322 * Support for selecting between multiple function definitions at runtime
323 using STT_GNU_IFUNC symbols. Implemented by Ulrich Drepper.
325 * The libcrypt library can now use the hash function implementations in
326 NSS. Implemented by Ulrich Drepper.
328 * The malloc implementation can be compiled to be less memory efficient
329 but higher performing in multi-threaded programs.
330 Implemented by Ulrich Drepper.
332 * New locales: nan_TW@latin, ks_IN
334 * Faster strlen, strchr, strchrnul, strrchr, memchr, and rawmemchr for x86-64.
335 Implemented by Ulrich Drepper.
337 * Extended printf hook support. It is possible to use user-defined types
338 and extend existing format specifiers.
339 Implemented by Ulrich Drepper.
341 * Handling for group shadow files has been added.
342 Implemented by Ulrich Drepper.
344 * DNS IPv4-IPv6 parallel lookup now deals better with broken DNS
345 servers (the case, e.g., for some people using the built-in DNS
346 server in ADSL modems/routers). There is a once-per-process timeout
347 in case of a broken server. To avoid it, users can run nscd or put
348 'options single-request' in /etc/resolv.conf.
349 Implemented by Ulrich Drepper.
350 \f
351 Version 2.9
353 * The following bugs are resolved with this release:
355 3406, 5209, 5210, 5381, 5794, 5814, 5911, 6428, 6438, 6442, 6447, 6461,
356 6472, 6505, 6544, 6589, 6612, 6634, 6653, 6654, 6657, 6698, 6712, 6713,
357 6719, 6723, 6724, 6740, 6763, 6771, 6790, 6791, 6817, 6824, 6839, 6843,
358 6845, 6856, 6857, 6860, 6867, 6875, 6919, 6920, 6942, 6947, 6955, 6966,
359 6968, 6974, 6980, 6995, 7008, 7009, 7029
361 * Unified lookup for getaddrinfo: IPv4 and IPv6 addresses are now looked
362 up at the same time. Implemented by Ulrich Drepper.
364 * TLS descriptors for LD and GD on x86 and x86-64.
365 Implemented by Alexandre Oliva.
367 * getaddrinfo now handles DCCP and UDPlite.
368 Implemented by Ulrich Drepper.
370 * New fixed-size conversion macros: htobe16, htole16, be16toh, le16toh,
371 htobe32, htole32, be32toh, le32toh, htobe64, htole64, be64toh, le64toh.
372 Implemented by Ulrich Drepper.
374 * New implementation of memmem, strstr, and strcasestr which is O(n).
375 Implemented by Eric Blake.
377 * New Linux interfaces: inotify_init1, dup3, epoll_create1, pipe2
379 * Implement "e" option for popen to open file descriptor with the
380 close-on-exec flag set. Implemented by Ulrich Drepper.
382 * Implement "b" mode for fmemopen. In this mode writes writes don't
383 implicitly add a NUL byte and seeks from the end of the buffer really
384 use the buffer end, not the string length as the basis.
385 Implemented by Ulrich Drepper.
387 * Many functions, exported and internal, now atomically set the close-on-exec
388 flag when run on a sufficiently new kernel. Implemented by Ulrich Drepper.
390 * Sorting rules for some Indian languages (Kannada, Gurumukhi, Telugu,
391 Sinhala)
392 Implemented by Pravin Satpute.
394 * New locales: sd_IN, sd_IN@devanagari, ks_IN@devanagari, ht_HT, en_AG, nl_AW.
395 \f
396 Version 2.8
398 * The following bugs are resolved with this release:
400 2549, 3112, 4314, 4407, 4997, 5012, 5040, 5112, 5204, 5208, 5209, 5220,
401 5222, 5224, 5225, 5237, 5238, 5240, 5245, 5277, 5346, 5375, 5378, 5382,
402 5424, 5427, 5428, 5435, 5436, 5439, 5441, 5442, 5443, 5451, 5452, 5454,
403 5455, 5463, 5464, 5465, 5475, 5477, 5478, 5520, 5541, 5545, 5553, 5600,
404 5602, 5607, 5614, 5627, 5628, 5736, 5737, 5741, 5753, 5760, 5762, 5768,
405 5774, 5777, 5778, 5779, 5786, 5790, 5818, 5854, 5857, 5903, 5939, 5979,
406 5983, 5995, 5998, 6004, 6007, 6020, 6021, 6024, 6040, 6042
408 * New locales: bo_CN, bo_IN, shs_CA.
410 * New encoding: HP-ROMAN9, HP-GREEK8, HP-THAI8, HP-TURKISH8.
412 * Sorting rules for some Indian languages (Devanagari and Gujarati).
413 Implemented by Pravin Satpute.
415 * IPV6 addresses in /etc/resolv.conf can now have a scope ID
417 * nscd caches now all timeouts for DNS entries
418 Implemented by Ulrich Drepper.
420 * nscd is more efficient and wakes up less often.
421 Implemented by Ulrich Drepper.
423 * More checking functions: asprintf, dprintf, obstack_printf, vasprintf,
424 vdprintf, and obstack_vprintf.
425 Implemented by Jakub Jelinek.
427 * Faster memset for x86-64.
428 Implemented by Harsha Jagasia and H.J. Lu.
430 * Faster memcpy on x86.
431 Implemented by Ulrich Drepper.
433 * ARG_MAX is not anymore constant on Linux. Use sysconf(_SC_ARG_MAX).
434 Implemented by Ulrich Drepper.
436 * Faster sqrt and sqrtf implemention for some PPC variants.
437 Implemented by Steven Munroe.
438 \f
439 Version 2.7
441 * The following bugs are resolved with this release:
443 4125, 4126, 4178, 4359, 4407, 4512, 4514, 4525, 4554, 4556, 4557, 4566,
444 4582, 4586, 4588, 4599, 4610, 4647, 4702, 4705, 4726, 4745, 4772, 4773,
445 4775, 4776, 4792, 4813, 4814, 4816, 4833, 4858, 4860, 4896, 4905, 4925,
446 4936, 4937, 4938, 4941, 4946, 4963, 4972, 5010, 5028, 5043, 5058, 5063,
447 5071, 5103, 5104, 5112, 5113, 5184, 5186
449 * More checking functions: fread, fread_unlocked, open*, mq_open.
450 Implemented by Jakub Jelinek and Ulrich Drepper.
452 * Extend fortification to C++. Implemented by Jakub Jelinek.
454 * Implement 'm' modifier for scanf. Add stricter C99/SUS compliance
455 by not recognizing 'a' as a modifier when those specs are requested.
456 Implemented by Jakub Jelinek.
458 * PPC optimizations to math and string functions.
459 Implemented by Steven Munroe.
461 * New interfaces: mkostemp, mkostemp64. Like mkstemp* but allow additional
462 options to be passed. Implemented by Ulrich Drepper.
464 * More CPU set manipulation functions. Implemented by Ulrich Drepper.
466 * New Linux interfaces: signalfd, eventfd, eventfd_read, and eventfd_write.
467 Implemented by Ulrich Drepper.
469 * Handle private futexes in the NPTL implementation.
470 Implemented by Jakub Jelinek and Ulrich Drepper.
472 * Add support for O_CLOEXEC. Implement in Hurd. Use throughout libc.
473 Implemented by Roland McGrath and Ulrich Drepper.
475 * Linux/x86-64 vDSO support. Implemented by Ulrich Drepper.
477 * SHA-256 and SHA-512 based password encryption.
478 Implemented by Ulrich Drepper.
480 * New locales: ber_DZ, ber_MA, en_NG, fil_PH, fur_IT, fy_DE, ha_NG, ig_NG,
481 ik_CA, iu_CA, li_BE, li_NL, nds_DE, nds_NL, pap_AN, sc_IT, tk_TM, ug_CN,
482 yo_NG.
484 + New iconv modules: MAC-CENTRALEUROPE, ISO-8859-9E, KOI8-RU.
485 Implemented by Ulrich Drepper.
486 \f
487 Version 2.6
489 * The following bugs are resolved with this release:
491 3156, 3213, 3285, 3291, 3306, 3313, 3320, 3322, 3325, 3326, 3334, 3348,
492 3352, 3363, 3369, 3426, 3427, 3429, 3451, 3458, 3465, 3480, 3483, 3493,
493 3514, 3515, 3559, 3632, 3664, 3673, 3674, 3745, 3747, 3818, 3840, 3842,
494 3851, 3855, 3884, 3885, 3902, 3905, 3919, 3944, 3954, 3955, 3957, 3991,
495 3995, 3996, 4024, 4040, 4069, 4070, 4074, 4076, 4096, 4101, 4102, 4114,
496 4130, 4131, 4181, 4276, 4306, 4342, 4344, 4349, 4364, 4368, 4381, 4392,
497 4403, 4405, 4406, 4411, 4438, 4439, 4455, 4456, 4465, 4512, 4514, 4586,
498 4702, 4858
500 * New Linux interfaces: epoll_pwait, sched_getcpu.
502 * New generic interfaces: strerror_l.
504 * nscd can now cache the services database. Implemented by Ulrich Drepper.
505 \f
506 Version 2.5
508 * The following bugs are resolved with this release:
510 39, 68, 192, 352, 388, 531, 935, 1006, 1201, 1203, 1386, 1782, 1783, 1784,
511 1785, 1786, 1787, 1951, 1974, 1996, 2072, 2098, 2125, 2134, 2158, 2182,
512 2349, 2376, 2386, 2389, 2415, 2418, 2420, 2423, 2450, 2451, 2466, 2472,
513 2473, 2477, 2498, 2499, 2501, 2502, 2505, 2507, 2508, 2509, 2517, 2526,
514 2569, 2571, 2592, 2611, 2625, 2632, 2644, 2662, 2680, 2683, 2684, 2693,
515 2695, 2703, 2734, 2751, 2764, 2766, 2775, 2792, 2821, 2823, 2832, 2841,
516 2843, 2883, 2892, 2908, 2914, 2926, 2961, 2978, 2980, 2987, 2997, 2998,
517 3013, 3018, 3034, 3040, 3044, 3123, 3124, 3137, 3138, 3143, 3155, 3189,
518 3225, 3251, 3252, 3253, 3273
520 * For Linux, the sorting of addresses returned by getaddrinfo now also
521 handles rules 3, 4, and 7 from RFC 3484. I.e., all rules are handled.
522 Implemented by Ulrich Drepper.
524 * Allow system admin to configure getaddrinfo with the /etc/gai.conf file.
525 Implemented by Ulrich Drepper.
527 * New Linux interfaces: splice, tee, sync_file_range, vmsplice.
529 * New iconv module for MIK. Contributed by Alexander Shopov.
531 * For sites with broken group and/or passwd database, the auto-propagate
532 option of nscd can prevent creating ID lookup entries from the results
533 of a name lookup and vice versa. This usually is no problem but some
534 site might have problems with the default behavior.
535 Implemented by Ulrich Drepper.
537 * Iterating over entire database in NIS can be slow. With the
538 SETENT_BATCH_READ option in /etc/default/nss a system admin can decide
539 to trade time for memory. The entire database will be read at once.
540 Implemented by Ulrich Drepper.
542 * The interfaces introduced in RFC 3542 have been implemented by
543 Ulrich Drepper.
545 * Support for the new ELF hash table format was added by Ulrich Drepper.
547 * Support for priority inheritance mutexes added by Jakub Jelinek and
548 Ulrich Drepper.
550 * Support for priority protected mutexes added by Jakub Jelinek.
552 * New locales: nr_ZA, pa_PK, ca_AD, ca_FR, ca_IT, el_CY, tr_CY, as_IN,
553 or_IN, csb_PL, fy_NL, sr_ME.
554 \f
555 Version 2.4
557 * More overflow detection functions.
559 * New iconv converters for IBM1025, IBM1122, IBM1137, IBM1153,
560 IBM1154, IBM1155, IBM1156, IBM1157, and IBM1158 contributed by Jiro Sekiba.
562 More converters for IBM803, IBM901, IBM902, IBM921, IBM1008, IBM1097,
563 IBM1112, IBM1123, IBM1130, IBM1140, IBM1141, IBM1142, IBM1143, IBM1144,
564 IBM1145, IBM1146, IBM1147, IBM1148, IBM1149, IBM1166, IBM1167, IBM4517,
565 IBM4899, IBM4909, IBM4971, IBM5347, IBM9030, IBM9066, IBM9448, IBM12712,
566 IBM16804, IBM1364, IBM1371, IBM1388, IBM1390, and IBM1399 contributed
567 by Masahide Washizawa.
569 * It is now possible to install audit libraries for the dynamic linker using
570 LD_AUDIT. Implemented by Ulrich Drepper.
572 * The LinuxThreads add-on, providing pthreads on Linux 2.4 kernels, is no
573 longer supported. The new NPTL implementation requires Linux 2.6 kernels.
574 For a libc and libpthread that works well on Linux 2.4 kernels, we
575 recommend using the stable 2.3 branch.
577 * The new function open_wmemstream acts like open_memstream,
578 but uses a wchar_t wide character buffer.
580 * The new function ppoll is an improved version of poll, similar to pselect.
582 * New interfaces: fdopendir, openat, fstatat, fchmodat, fchownat,
583 futimesat, faccessat, mkdirat, mkfifoat, mknodat,
584 renameat, unlinkat, linkat, symlinkat, readlinkat.
586 * New Linux kernel system calls: unshare,
587 inotify_init, inotify_add_watch, inotify_rm_watch.
589 * The euidaccess function is now also known by the alias eaccess,
590 for compatibility with some other systems.
592 * Timezone data updated to 2006b version.
593 \f
594 Version 2.3.6
596 * The following bugs are resolved with this release:
598 38, 253, 549, 622, 653, 721, 758, 851, 877, 915, 934, 955, 961,
599 1016, 1037, 1076, 1079, 1080, 1081, 1082, 1083, 1084, 1085, 1086,
600 1087, 1088, 1090, 1091, 1092, 1093, 1094, 1095, 1096, 1097, 1098,
601 1099, 1100, 1101, 1102, 1103, 1104, 1105, 1106, 1107, 1108, 1109,
602 1110, 1111, 1112, 1113, 1125, 1137, 1138, 1249, 1250, 1251, 1252,
603 1253, 1254, 1350, 1358, 1394, 1438, 1498, 1534
605 Visit <http://sources.redhat.com/bugzilla/> for the details of each bug.
607 * As of this release, GCC 4 can be used to compile the C Library.
609 * Timezone data updated to 2005m version.
610 \f
611 Version 2.3.5
613 * The following bugs are resolved with this release:
615 284, 592, 602, 626, 633, 640, 650, 661, 671, 681, 693, 700, 710, 719,
616 722, 723, 725, 726, 727, 728, 729, 730, 731, 732, 733, 734, 735, 736,
617 737, 738, 739, 740, 741, 742, 743, 744, 745, 765, 767, 768, 769, 776,
618 777, 787, 821, 822, 823, 825
620 Visit <http://sources.redhat.com/bugzilla/> for the details of each bug.
621 \f
622 Version 2.3.4
624 * Support for RFC 3678. Real implementations exist only for Linux so far.
625 Implemented by Ulrich Drepper.
627 * nscd can now cache entries persistently. Expiring entries are reloaded.
628 For speedups the cache can be shared in memory with client processes.
629 Implemented by Ulrich Drepper.
631 * nscd can now perform SELinux checks.
632 Implemented by Matthew Rickard <mjricka@epoch.ncsc.mil>.
634 * getaddrinfo queries are now cached. Canonical name lookup is performed
635 efficiently.
636 Implemented by Ulrich Drepper.
638 * The nothrow function attribute is used when headers are used by gcc when
639 compiling C code. This can avoid significant amounts of exception
640 handling data.
642 * The malloc functions perform more error checking and are stricter when
643 it comes to reacting on errors. The default action is to terminate
644 the process after showing an error message. Implemented by Ulrich Drepper.
646 * Reverse lookups of IPv6 addresses does not use bit string or .ip6.int
647 lookups anymore unless explicitly requested. Implemented by Ulrich Drepper.
649 * Namespaces in ld.so are implemented. DSOs can be loaded in separate
650 namespaces using the new function dlmopen(). This feature is of course,
651 like most other dynamic loading functionality, not available in statically
652 linked applications. Implemented by Ulrich Drepper.
654 * Low-overhead boundary checking variants of string and some stdio functions
655 were added. These are to be used in conjunction with a gcc patch by
656 Jakub Jelinek which adds calls to these functions if possible.
657 Implemented by Jakub Jelinek and Ulrich Drepper.
659 * Old code for several operating systems and machine architectures that
660 have not been in working condition in a long time have been removed from
661 the main source tree maintained by the GNU C Library's maintainers.
662 These files are now reside in the separate `ports' source module
663 that is usable as an add-on when building the library.
664 \f
665 Version 2.3.3
667 * New functions `dladdr1' and `dlinfo' in <dlfcn.h> provide more ways to
668 interrogate the dynamic linker, compatible with the Solaris interface.
670 * ELF thread-local storage support (TLS) now works on PowerPC and PowerPC64;
671 implemented by Paul Mackerras, Steven Munroe, and Roland McGrath.
673 * getifaddrs now uses the netlink interface on Linux to get its information.
674 Implemented by Thorsten Kukuk.
676 * getaddrinfo now implements AI_V4MAPPED, AI_ALL, and AI_ADDRCONF.
677 Implemented by Ulrich Drepper.
679 * support for non-executable stacks on x86 has been added. Changes mostly
680 by Roland McGrath.
682 * regex is now much faster for multibyte locales. Changes by Jakub Jelinek
683 and Ulrich Drepper.
685 * getaddrinfo now performs destination address selection according to
686 RFC 3484.
687 \f
688 Version 2.3.2
690 * Thread-safe interfaces for many functions that access locale data
691 were added in version 2.3, but these features were omitted from NEWS.
692 Many functions have variants with an `_l' suffix that take a `locale_t'
693 object as a parameter rather than consulting the current locale.
694 The new functions `newlocale', `duplocale', and `freelocale' in <locale.h>
695 create and maintain `locale_t' objects. Additionally, the new function
696 `uselocale' sets "the current locale" (as used by functions not so
697 parameterized) set for an individual thread. These features were added
698 in version 2.3, implemented by Ulrich Drepper and Roland McGrath.
700 * The functions getresuid, getresgid, setresuid, and setresgid, which
701 have long been available on Linux, are now declared in <unistd.h>
702 and are now also available on the Hurd.
704 * ELF thread-local storage support (TLS) now works on x86-64.
706 * The new dynamic string token $LIB is expanded in shared library names.
707 This normally expands to lib, but on some 64-bit platforms to lib64 instead.
709 * Aldy Hernandez contributed complete software floating point support for
710 PowerPC machines with no FPU.
712 * fexecve is implemented on Linux.
714 * The `btowc' function should work at least twice as fast due to
715 specialized callbacks in the iconv modules. Implemented by Bruno Haible.
717 * With approriate thread add-ons cancelable functions are now implemented
718 in libc.so as well. No need to call the function in libpthread. This
719 change allowed to finally disable the incorrect and expensive handling
720 of weak definition in ld.so.
722 * Yet more PLT entries in libc.so have been removed. We finally arrived
723 at the bare minimum. Startup times improved appropriately.
725 * Support for the new Linux/x86 system call interface was added. The
726 AT_SYSINFO auxiliary vector entry is recognized and handled.
727 \f
728 Version 2.3
730 * Masahide Washizawa contributed iconv modules for IBM1163 and IBM1164
731 charsets.
733 * iconv (the program and the interface) now accepts empty names (excluding
734 options like //TRANSLIT) to mean "use charset of current locale".
736 * localedef can now transliterate characters in strings which are not in
737 the provided charmap. The information from the input locale is used.
739 * Prelinking support was added for ELF targets. This requires additional
740 tools and recent versions of the GNU binutils. Contributed by Jakub Jelinek.
742 * Read-only stdio streams now use mmap to speed up operation by eliminating
743 copying and buffer underflows. To use add 'm' to the mode string of
744 the fopen/fdopen/freopen call. Implemented by Ulrich Drepper.
746 * The malloc functions were completely rewritten by Wolfram Gloger based
747 on Doug Lea's malloc-2.7.0.c.
749 * Isamu Hasegawa contributed a completely new and POSIX-conformant
750 implementation of regex.
752 * Bruno Haible upgraded the iconv and locale implementation to support
753 Unicode 3.2.
755 * Contents of the LC_* and LANG environment variables in the CEN style are
756 not recognized anymore. It never was used. Change by Ulrich Drepper.
758 * The runtime (ld.so, libc, libpthread for Linux) now can handle the ELF
759 thread-local storage (TLS) ABI on some platforms.
760 Changes by Ulrich Drepper. SH support by Kaz Kojima.
762 * Bruno Haible contributed iconv converters for ISO-2022-JP-3, SHIFT JIS-X0213,
763 EUC-JISX0213, and TSCII.
765 * New header <ifaddrs.h> with functions `getifaddrs' and `freeifaddrs':
766 BSD-compatible interface for getting all network interface addresses.
767 Implementation for IPv4 by Roland McGrath.
769 * Loading of locale data is faster due to the introduction of a locale
770 archive. Implemented by Roland McGrath and Ulrich Drepper.
772 * Startup times are significantly reduced by not using exported functions
773 inside the library itself. Changes by Jakub Jelinek, Roland McGrath,
774 and Ulrich Drepper.
776 * Steven Munroe contributed a port to PowerPC64/Linux.
777 \f
778 Version 2.2.6
780 * The Hurd now uses the GNU libio implementation of stdio rather than the
781 old GNU stdio implementation, and uses a new ABI (libc.so.0.3).
783 * The Hurd on x86 now has the `ioperm' function and <sys/io.h> header file
784 with the same behavior as the Linux system call of the same name.
785 \f
786 Version 2.2.5
788 * Stephen Moshier implemented log2, log10, powl and cbrtl for the
789 128-bit long double format.
791 * Masahide Washizawa contributed iconv modules for IBM1132, IBM1133, IBM1160,
792 IBM1161, and IBM1162 charsets.
794 * Andreas Jaeger contributed a port to x86-64/Linux.
796 * Peter Bruin contributed a port to PowerPC/Hurd.
798 * libc functions using I/O streams now can handle wide-oriented streams
799 as well.
801 * optimizations in the dynamic linker. Binaries created by recent binutils
802 versions start up quicker due to reduced time spent on relocations.
804 * Support for use of gcc3 added by Jakub Jelinek and HJ Lu.
805 \f
806 Version 2.2.4
808 * Stephen Moshier implemented cosh, expm1, log1p, acos, sinh, tanh,
809 asinh, atanh, j0 for the 128-bit long double format.
811 * Bruno Haible updated all the code handling Unicode in some form to
812 support Unicode 3.1.
814 * Speed of regex for single-byte locales is back to previous levels.
815 Patch by Isamu Hasegawa.
817 * Alpha, SPARC, and IA-64 now also using floating stacks.
819 * Startup time of internationalized applications greatly improved through
820 iconv cache. Use iconvconfig to generate the cache file.
821 Contributed by Ulrich Drepper.
823 * The IA-64 specific part of ld.so was rewritten to eliminate some pretty
824 severe performance problems. Patch by David Mosberger.
826 * The Hurd port got a lot more functionality like AIO, various stdio
827 extensions, etc. Mainly done by Roland McGrath.
829 * mtrace can now lookup symbols in shared libraries.
830 \f
831 Version 2.2.3
833 * Intel's IA-64 math library is largely integrated. It provides fast and
834 accurate implementatations for most basic and standard math functions
835 in float, double, and long double format.
837 * Stephen Moshier implemented j0, j1, jn, y0, y1, yn, lgamma, erf, erfc,
838 and asin for the 96-bit long double format and asin, log, tan for the
839 128-bit long double format.
841 * The beginning of a last-bit accurate math library by IBM Haifa were added.
842 The basic double functions exist today. Contributed by Abraham Ziv
843 <ziv@il.ibm.com>, Moshe Olshansky <olshansk@il.ibm.com>, Ealan Henis
844 <ealan@il.ibm.com>, and Anna Reitman <reitman@il.ibm.com>.
846 * An asynchronous name lookup library was added. The interface is designed
847 after POSIX AIO. The proposal was circulated beforehand to get comments.
848 No negative ones came in. Implemented by Ulrich Drepper.
850 * Port to S390/64bit contributed by Martin Schwidefsky
851 <schwidefsky@de.ibm.com>.
853 * David Mosberger <davidm@hpl.hp.com> implemented the setcontext family
854 of functions for Linux/IA-64.
856 * The RPC code is now thread safe. Threads can now use the same service
857 of different services at the same time. Patch by Eric Norum
858 <eric.norum@usask.ca> with some help by Ulrich Drepper.
860 * Martin Schwidefsky <schwidefsky@de.ibm.com> implemented the setcontext
861 family of functions for Linux/S390.
863 * Ulrich Drepper <drepper@redhat.com> implemented the setcontext family
864 of functions for Linux/x86.
866 * Port to Linux/CRIS contributed by Axis Communications.
867 \f
868 Version 2.2.2
870 * Lots of headers were cleaned up. Using the tool in the conform/ subdir
871 we can now check for namespace violations and missing declarations. The
872 result is that almost all headers are now Unix-compliant (as defined in
873 the upcoming XPG6). The negative side is that some programs might need
874 corrections, too, if they depend on the incorrect form of the headers in
875 previous versions which defined too many symbols and included too many
876 other headers.
878 * regex now handles multibyte character sets correctly.
879 Contributed by Isamu Hasegawa <isamu@yamato.ibm.com>.
881 * iconv (the program) does now conform to the upcoming XPG6 and handles
882 charmaps. Instead of the charset names the path of charmaps can be
883 provided and the conversion happens based on this data.
884 Contributed by Ulrich Drepper.
886 * The locale program now provides detailed information about the installed
887 locales. While
889 locale -a
891 only lists the names of the supported locales
893 locale -a --verbose
895 provides details such as country, language, and codeset name.
896 Contributed by Ulrich Drepper.
897 \f
898 Version 2.2.1
900 * The gencat program now parses the input file according to the charset
901 selected by the LC_CTYPE category. This is important for stateful
902 character sets. To make generating catalogs easier there is a way
903 to overwrite the charset selected by the locale: before the first
904 message or $ quote line the catalog can contain a line like
906 $ codeset=ISO-8859-2
908 to select the charset (ISO-8859-2 in this case).
910 Implemented by Shinya Hanataka and Ulrich Drepper.
912 * New codeset conversion modules: IBM-922 (Estonia PC codeset),
913 IBM-1124 (Ukraine PC codeset), IBM-1129 (Vietnamese PC codeset).
914 Contributed by Masahide Washizawa <washi@jp.ibm.com>.
916 * Optimized string functions for Alpha ev6 and ev67 by Richard Henderson
917 <rth@redhat.com> and Rick Gorton <rick.gorton@alpha-processor.com>.
919 * The LANGUAGE environment variable is now ignored unless the locale is
920 changed from the default "C" locale.
922 * The usual bug fixes.
923 \f
924 Version 2.2
926 * Greg McGary added runtime support for bounds checking using gcc's
927 new -fbounded-pointers option. ix86 target is complete. PowerPC
928 is in progress.
930 * Thorsten Kukuk added secure mode support to nscd.
932 * The Berkeley db libraries have been removed.
934 Related, the nss_db module is now in a separate package since it
935 obviously requires a database library being available.
937 * Wide character I/O streams implemented by Ulrich Drepper.
939 * Functions from the extended socket API added by Ulrich Drepper.
941 * Functions feenableexcept and fedisableexcept to control the
942 behaviour of individual exceptions have been added by Andreas Jaeger.
944 * ldconfig program added by Andreas Jaeger and Jakub Jelinek.
946 * The resolver code has been updated from bind 8.2.3-T5B which supports
947 threads. The integration was done by Andreas Jaeger, Adam D. Bradley,
948 and Mark Kettenis.
950 This change could in some situations effect backward compatibility. Since
951 now `_res' is a thread-local instead of a global variable, modifying it
952 in one thread does not have any effect in other threads.
954 The resolver library was also extended to allow IPv6 as the transport
955 protocol for the requests. This work was done by Stig Venaas.
957 * Compatibility code for K&R C compilers has been removed from the
958 header files. A ISO C compiler is needed to use the library
959 (conforming to either C89 or C99 standard).
961 * Complete rewrite of the localedef program to support multibyte character
962 sets. Implement handling of ISO 14651 and ISO 14652. Rewrite strcoll,
963 strxfrm, wcscoll, and wcsxfrm functions. Make isw*() functions work.
964 Implemented by Ulrich Drepper.
966 Bruno Haible significantly improved the generation and use of the data
967 structures for the wide character tables.
969 * Plural handling in gettext implemented by Ulrich Drepper.
971 * The utmp daemon has been removed.
973 * The port to MIPS-Linux has been finished by Andreas Jaeger.
975 * A port to Hitachi SH3 and SH4 has been contributed by Kazumoto Kojima
976 and Yutaka Niibe.
978 * POSIX clocks and timers implemented by Kaz Kylheku and Ulrich Drepper.
980 * POSIX barriers implemented by Kaz Kylheku.
982 * POSIX spawn function family implemented by Ulrich Drepper.
984 * POSIX spinlocks are now available.
986 * Timed wait functions for mutex, rwlock, and semaphores are implemented.
988 * the configure option --enable-kernel=X.Y.Z allows to strip out
989 compatibility for kernel versions before X.Y.Z. This is currently only
990 implemented for Linux.
992 * the sockaddr_in6 structure changed. The IPv6 working group added a new
993 field sin6_scope_id. This means that all programs using IPv6 should be
994 recompiled. Don't expect binary compatibility with previous glibc
995 versions.
997 * various conversion modules for IBM character sets contributed by
998 Masahide Washizawa.
1000 * IA-64 port by Jes Sorensen and HJ Lu.
1001 \f
1002 Version 2.1.3
1004 * bug fixes
1006 \f
1007 Version 2.1.2
1009 * bug fixes
1011 \f
1012 Version 2.1.1
1014 * New ISO C 9x function _Exit, imaxabs, and imaxdiv are added.
1016 * New xdr functions are added; some rpc functions are now 64bit clean.
1018 * Fixed a number of bugs and memory leaks (especially in NIS+ code).
1020 * Fixed known incompatibilities with glibc 2.0.
1022 * New functions lock64, strchrnul, rawmemchr, getutmp and getutmpx.
1024 * Optimized a number of functions (especially the ELF dynamic loader).
1026 * Update timezone data files.
1028 * lots of charmaps corrections
1030 * some new locale definitions and charmaps
1032 \f
1033 Version 2.1
1035 * Richard Henderson corrected size of struct timeval on Linux/Alpha to
1036 conform to POSIX member type requirements. Symbol versions have been
1037 adjusted as needed within the library, and for direct use by applications,
1038 but there is potential for problems if third-party libraries use
1039 struct timeval as part of their interface. This does not present
1040 a problem for X and other "essential" system libraries.
1042 * An additional locale model to support C++ Standard Library locale
1043 model and probably more was implemented by Ulrich Drepper.
1045 * Eric Youngdale and Ulrich Drepper implemented versioning of objects on
1046 symbol level.
1048 * Miles Bader provided the `argp' function family to support hierachical
1049 command line argument parsing, layered on top of getopt.
1051 * strtod accepts new hexadecimal floating-point format from ISO C 9X.
1053 * printf has two new specifiers %a and %A to print hexadecimal flaoting-point
1054 numbers.
1056 * scanf recognizes the %a and %A format for scanning floating point numbers.
1058 * the new headers <stdint.h> and <inttypes.h> from ISO C 9X provides
1059 information and interfaces for the available integer types.
1061 * about 130 new math functions were added to implement the ISO C9x math
1062 library.
1064 * the new header <complex.h> contains definitions of the complex math
1065 functions from ISO C 9X.
1067 * the new header <tgmath.h> defines generic macros to use complex or
1068 real valued functions.
1070 * Thorsten Kukuk provided an implementation for NIS+, securelevel 0, 1 and 2.
1072 * Andreas Jaeger provided a test suite for the math library.
1074 * Mark Kettenis implemented the utmpx interface and an utmp daemon.
1076 * Ulrich Drepper added character set conversion functions (iconv).
1078 * Optimized string functions have been added.
1080 * The localedata addon is now part of glibc.
1082 * An implementation of profiling shared libraries was added by Ulrich Drepper.
1084 * Thorsten Kukuk and Ulrich Drepper provided an implementation for a caching
1085 daemon for NSS (nscd).
1087 Missing a better place here are some numbers on improvements. Under
1088 Linux 2.1.125 un-tar-ing the kernel sources takes
1090 user system wall
1092 using local files 12.19s 6.88s 22.91s
1094 using NIS 13.92s 8.91s 26.34s
1096 using NIS & nscd 10.37s 7.34s 25.30s
1098 using NIS+ 27.57s 30.37s 640.46s
1100 using NIS+ & nscd 10.25s 7.83s 26.51s
1102 using NIS & old nscd [1] 13.83s 8.32s 29.60s
1104 Keep in mind that non-namelookup related operations dominate above times.
1105 It was just a common complain that using NIS+ unpacking the kernel is
1106 horribly slow.
1108 [1] The old nscd implementation is not available anymore since it was
1109 distributed with glibc up to version 2.0.98 and thus is now replaced.
1111 * Tim Waugh provided an implementation of the POSIX.2 wordexp function family.
1113 * Mark Kettenis provided a Hesiod NSS module.
1115 * The ELF dynamic loader knows how to process dynamic string tokens ($ORIGIN
1116 and $PLATFORM) in RPATHs and similar strings (Ulrich Drepper).
1118 * rcmd can now handle netgroups (Dick Streefland).
1120 * A port to the ARM was contributed by Phil Blundell, Pat Beirne and Scott
1121 Bambrough.
1123 * Support for the IPv6 protocol has been added to the socket API, as per the
1124 latest draft standards.
1126 * Support for Linux 2.2 has been added.
1128 * Interface changes relative to the latest 2.0.x release:
1129 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1130 addseverity NEW: Unix98
1131 alphasort64 NEW: LFS
1132 argp_err_exit_status NEW: argp, GNU ext
1133 argp_error NEW: argp, GNU ext
1134 argp_failure NEW: argp, GNU ext
1135 argp_help NEW: argp, GNU ext
1136 argp_parse NEW: argp, GNU ext
1137 argp_program_bug_address NEW: argp, GNU ext
1138 argp_program_version NEW: argp, GNU ext
1139 argp_program_version_hook NEW: argp, GNU ext
1140 argp_state_help NEW: argp, GNU ext
1141 argp_usage NEW: argp, GNU ext
1142 authdes_create NEW: Secure RPC
1143 authdes_getucred NEW: Secure RPC
1144 authdes_pk_create NEW: Secure RPC
1145 backtrace NEW: GNU ext.
1146 backtrace_symbols NEW: GNU ext.
1147 backtrace_symbols_fd NEW: GNU ext.
1148 cacos NEW: ISO C 9x
1149 cacosf NEW: ISO C 9x
1150 cacosh NEW: ISO C 9x
1151 cacoshf NEW: ISO C 9x
1152 cacoshl NEW: ISO C 9x
1153 cacosl NEW: ISO C 9x
1154 capget NEW: kernel
1155 capset NEW: kernel
1156 carg NEW: ISO C 9x
1157 cargf NEW: ISO C 9x
1158 cargl NEW: ISO C 9x
1159 casin NEW: ISO C 9x
1160 casinf NEW: ISO C 9x
1161 casinh NEW: ISO C 9x
1162 casinhf NEW: ISO C 9x
1163 casinhl NEW: ISO C 9x
1164 casinl NEW: ISO C 9x
1165 catan NEW: ISO C 9x
1166 catanf NEW: ISO C 9x
1167 catanh NEW: ISO C 9x
1168 catanhf NEW: ISO C 9x
1169 catanhl NEW: ISO C 9x
1170 catanl NEW: ISO C 9x
1171 cbc_crypt NEW: Secure RPC
1172 ccos NEW: ISO C 9x
1173 ccosf NEW: ISO C 9x
1174 ccosh NEW: ISO C 9x
1175 ccoshf NEW: ISO C 9x
1176 ccoshl NEW: ISO C 9x
1177 ccosl NEW: ISO C 9x
1178 cexp NEW: ISO C 9x
1179 cexpf NEW: ISO C 9x
1180 cexpl NEW: ISO C 9x
1181 cimag NEW: ISO C 9x
1182 cimagf NEW: ISO C 9x
1183 cimagl NEW: ISO C 9x
1184 clearerr_locked REMOVED
1185 clntunix_create NEW: sunrpc ext
1186 clog NEW: ISO C 9x
1187 clog10 NEW: ISO C 9x
1188 clog10f NEW: ISO C 9x
1189 clog10l NEW: ISO C 9x
1190 clogf NEW: ISO C 9x
1191 clogl NEW: ISO C 9x
1192 conj NEW: ISO C 9x
1193 conjf NEW: ISO C 9x
1194 conjl NEW: ISO C 9x
1195 cpow NEW: ISO C 9x
1196 cpowf NEW: ISO C 9x
1197 cpowl NEW: ISO C 9x
1198 cproj NEW: ISO C 9x
1199 cprojf NEW: ISO C 9x
1200 cprojl NEW: ISO C 9x
1201 creal NEW: ISO C 9x
1202 crealf NEW: ISO C 9x
1203 creall NEW: ISO C 9x
1204 creat64 NEW: LFS
1205 csin NEW: ISO C 9x
1206 csinf NEW: ISO C 9x
1207 csinh NEW: ISO C 9x
1208 csinhf NEW: ISO C 9x
1209 csinhl NEW: ISO C 9x
1210 csinl NEW: ISO C 9x
1211 csqrt NEW: ISO C 9x
1212 csqrtf NEW: ISO C 9x
1213 csqrtl NEW: ISO C 9x
1214 ctan NEW: ISO C 9x
1215 ctanf NEW: ISO C 9x
1216 ctanh NEW: ISO C 9x
1217 ctanhf NEW: ISO C 9x
1218 ctanhl NEW: ISO C 9x
1219 ctanl NEW: ISO C 9x
1220 des_setparity NEW: Secure RPC
1221 ecb_crypt NEW: Secure RPC
1222 endutxent NEW: Unix98
1223 exp10 NEW: ISO C 9x
1224 exp10f NEW: ISO C 9x
1225 exp10l NEW: ISO C 9x
1226 exp2 NEW: ISO C 9x
1227 exp2f NEW: ISO C 9x
1228 exp2l NEW: ISO C 9x
1229 fattach NEW: STREAMS
1230 fdetach NEW: STREAMS
1231 fdim NEW: ISO C 9x
1232 fdimf NEW: ISO C 9x
1233 fdiml NEW: ISO C 9x
1234 feclearexcept NEW: ISO C 9x
1235 fegetenv NEW: ISO C 9x
1236 fegetexceptflag NEW: ISO C 9x
1237 fegetround NEW: ISO C 9x
1238 feholdexcept NEW: ISO C 9x
1239 feof_locked REMOVED
1240 feraiseexcept NEW: ISO C 9x
1241 ferror_locked REMOVED
1242 fesetenv NEW: ISO C 9x
1243 fesetexceptflag NEW: ISO C 9x
1244 fesetround NEW: ISO C 9x
1245 fetestexcept NEW: ISO C 9x
1246 feupdateenv NEW: ISO C 9x
1247 fflush_locked REMOVED
1248 ffsl NEW: GNU ext.
1249 ffsll NEW: GNU ext.
1250 fgetpos64 NEW: LFS
1251 fgets_unlocked NEW: GNU ext.
1252 fileno_locked REMOVED
1253 fma NEW: ISO C 9x
1254 fmaf NEW: ISO C 9x
1255 fmal NEW: ISO C 9x
1256 fmax NEW: ISO C 9x
1257 fmaxf NEW: ISO C 9x
1258 fmaxl NEW: ISO C 9x
1259 fmin NEW: ISO C 9x
1260 fminf NEW: ISO C 9x
1261 fminl NEW: ISO C 9x
1262 fmtmsg NEW: Unix98
1263 fopen64 NEW: LFS
1264 fputc_locked REMOVED
1265 fputs_unlocked NEW: GNU ext.
1266 fread_unlocked NEW: GNU ext.
1267 freopen64 NEW: LFS
1268 fseeko NEW: Unix98
1269 fsetpos64 NEW: LFS
1270 fstatfs64 NEW: LFS
1271 fstatvfs NEW: Unix98
1272 fstatvfs64 NEW: LFS
1273 ftello NEW: Unix98
1274 ftello64 NEW: LFS
1275 ftruncate64 NEW: LFS
1276 ftw64 NEW: LFS
1277 fwrite_unlocked NEW: GNU ext.
1278 gai_strerror NEW: IPv6
1279 gamma_r REMOVED
1280 gammaf_r REMOVED
1281 gammal_r REMOVED
1282 getchar_locked REMOVED
1283 getdate NEW: Unix98
1284 getdate_err NEW: Unix98
1285 getdate_r NEW: GNU ext.
1286 getmsg NEW: STREAMS
1287 getnameinfo NEW: IPv6
1288 getnetname NEW: Secure RPC
1289 getpmsg NEW: STREAMS
1290 getpt NEW: Unix98 PTY
1291 getrlimit64 NEW: LFS
1292 getutxent NEW: Unix98
1293 getutxid NEW: Unix98
1294 getutxline NEW: Unix98
1295 glob64 NEW: GNU ext.
1296 globfree64 NEW: GNU ext.
1297 gnu_get_libc_release NEW: GNU ext.
1298 gnu_get_libc_version NEW: GNU ext.
1299 grantpt NEW: Unix98 PTY
1300 host2netname NEW: Secure RPC
1301 iconv NEW: iconv
1302 iconv_close NEW: iconv
1303 iconv_open NEW: iconv
1304 if_freenameindex NEW: IPv6
1305 if_indextoname NEW: IPv6
1306 if_nameindex NEW: IPv6
1307 if_nametoindex NEW: IPv6
1308 in6addr_any NEW: IPv6
1309 in6addr_loopback NEW: IPv6
1310 inet6_isipv4mapped NEW: IPv6
1311 isastream NEW: STREAMS
1312 iswblank NEW: GNU ext.
1313 key_decryptsession NEW: Secure RPC
1314 key_decryptsession_pk NEW: Secure RPC
1315 key_encryptsession NEW: Secure RPC
1316 key_encryptsession_pk NEW: Secure RPC
1317 key_gendes NEW: Secure RPC
1318 key_get_conv NEW: Secure RPC
1319 key_secretkey_is_set NEW: Secure RPC
1320 key_setnet NEW: Secure RPC
1321 key_setsecret NEW: Secure RPC
1322 llrint NEW: ISO C 9x
1323 llrintf NEW: ISO C 9x
1324 llrintl NEW: ISO C 9x
1325 llround NEW: ISO C 9x
1326 llroundf NEW: ISO C 9x
1327 llroundl NEW: ISO C 9x
1328 log2 NEW: ISO C 9x
1329 log2f NEW: ISO C 9x
1330 log2l NEW: ISO C 9x
1331 lrint NEW: ISO C 9x
1332 lrintf NEW: ISO C 9x
1333 lrintl NEW: ISO C 9x
1334 lround NEW: ISO C 9x
1335 lroundf NEW: ISO C 9x
1336 lroundl NEW: ISO C 9x
1337 lseek64 NEW: LFS
1338 makecontext NEW: Unix98
1339 mempcpy NEW: GNU ext.
1340 mmap64 NEW: LFS
1341 moncontrol REMOVED
1342 modify_ldt NEW: kernel
1343 nan NEW: ISO C 9x
1344 nanf NEW: ISO C 9x
1345 nanl NEW: ISO C 9x
1346 nearbyint NEW: ISO C 9x
1347 nearbyintf NEW: ISO C 9x
1348 nearbyintl NEW: ISO C 9x
1349 netname2host NEW: Secure RPC
1350 netname2user NEW: Secure RPC
1351 nexttoward NEW: ISO C 9x
1352 nexttowardf NEW: ISO C 9x
1353 nexttowardl NEW: ISO C 9x
1354 nftw NEW: Unix98
1355 nftw64 NEW: LFS
1356 open64 NEW: LFS
1357 passwd2des NEW: Secure RPC
1358 pow10 NEW: GNU ext.
1359 pow10f NEW: GNU ext.
1360 pow10l NEW: GNU ext.
1361 pread NEW: Unix98
1362 pread64 NEW: LFS
1363 printf_size NEW: GNU ext.
1364 printf_size_info NEW: GNU ext.
1365 profil_counter REMOVED
1366 pthread_mutexattr_getkind_np REPLACED
1367 pthread_mutexattr_setkind_np REPLACED
1368 ptsname NEW: Unix98 PTY
1369 ptsname_r NEW: Unix98 PTY
1370 putc_locked REMOVED
1371 putchar_locked REMOVED
1372 putgrent NEW: GNU ext.
1373 putmsg NEW: STREAMS
1374 putpmsg NEW: STREAMS
1375 pututxline NEW: Unix98
1376 pwrite NEW: Unix98
1377 pwrite64 NEW: LFS
1378 readdir64 NEW: LFS
1379 readdir64_r NEW: LFS
1380 remquo NEW: ISO C 9x
1381 remquof NEW: ISO C 9x
1382 remquol NEW: ISO C 9x
1383 round NEW: ISO C 9x
1384 roundf NEW: ISO C 9x
1385 roundl NEW: ISO C 9x
1386 rtime NEW: GNU ext.
1387 scalbln NEW: ISO C 9x
1388 scalblnf NEW: ISO C 9x
1389 scalblnl NEW: ISO C 9x
1390 scandir64 NEW: LFS
1391 sendfile NEW: kernel
1392 setcontext NEW: Unix98
1393 setrlimit64 NEW: LFS
1394 setutxent NEW: Unix98
1395 sighold NEW: Unix98
1396 sigignore NEW: Unix98
1397 sigqueue NEW: POSIX.1b
1398 sigrelse NEW: Unix98
1399 sigset NEW: POSIX.1b
1400 sigtimedwait NEW: POSIX.1b
1401 sigwaitinfo NEW: POSIX.1b
1402 sincos NEW: GNU ext.
1403 sincosf NEW: GNU ext.
1404 sincosl NEW: GNU ext.
1405 statfs64 NEW: LFS
1406 statvfs NEW: Unix98
1407 statvfs64 NEW: LFS
1408 strcasestr NEW: GNU ext.
1409 strtoimax NEW: ISO C 9x
1410 strtoumax NEW: ISO C 9x
1411 strverscmp NEW: GNU ext.
1412 svcauthdes_stats NEW: Secure RPC
1413 svcunix_create NEW: sunrpc etx
1414 svcunixfd_create NEW: sunrpc ext
1415 swapcontext NEW: Unix98
1416 tcgetsid NEW: Unix98 PTY
1417 tdestroy NEW: GNU ext.
1418 tgamma NEW: ISO C 9x
1419 tgammaf NEW: ISO C 9x
1420 tgammal NEW: ISO C 9x
1421 tmpfile64 NEW: LFS
1422 trunc NEW: ISO C 9x
1423 truncate64 NEW: LFS
1424 truncf NEW: ISO C 9x
1425 truncl NEW: ISO C 9x
1426 umount2 NEW: kernel
1427 unlockpt NEW: Unix98 PTY
1428 updwtmpx NEW: Unix98
1429 user2netname NEW: Secure RPC
1430 utmpxname NEW: Unix98
1431 versionsort NEW: GNU ext.
1432 versionsort64 NEW: GNU ext.
1433 waitid NEW: Unix98
1434 wcscasecmp NEW: GNU ext.
1435 wcsncasecmp NEW: GNU ext.
1436 wcsnlen NEW: GNU ext.
1437 wcstoimax NEW: ISO C 9x
1438 wcstoll NEW: ISO C 9x
1439 wcstoull NEW: ISO C 9x
1440 wcstoumax NEW: ISO C 9x
1441 wcswcs NEW: Unix98
1442 wordexp NEW: POSIX.2
1443 wordfree NEW: POSIX.2
1444 write_profiling REMOVED
1445 xdecrypt NEW: Secure RPC
1446 xdr_authdes_cred NEW: Secure RPC
1447 xdr_authdes_verf NEW: Secure RPC
1448 xdr_cryptkeyarg NEW: Secure RPC
1449 xdr_cryptkeyarg2 NEW: Secure RPC
1450 xdr_cryptkeyres NEW: Secure RPC
1451 xdr_getcredres NEW: Secure RPC
1452 xdr_key_netstarg NEW: Secure RPC
1453 xdr_key_netstres NEW: Secure RPC
1454 xdr_keybuf NEW: Secure RPC
1455 xdr_keystatus NEW: Secure RPC
1456 xdr_netnamestr NEW: Secure RPC
1457 xdr_sizeof NEW: Secure RPC
1458 xdr_unixcred NEW: sunrpc ext
1459 xencrypt NEW: Secure RPC
1460 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1461 \f
1462 Version 2.0.6
1464 * more bug fixes
1466 \f
1467 Version 2.0.5
1469 * more bug fixes
1471 * inet_ntoa is thread-safe
1473 * updwtmp is moved from libutil to libc
1475 * rewrite of cbrt function
1477 * update of timezone data
1478 \f
1479 Version 2.0.4
1481 * more bug fixes
1482 \f
1483 Version 2.0.3
1485 * more bug fixes
1486 \f
1487 Version 2.0.2
1489 * more bug fixes
1491 * add atoll function
1493 * fix complex problems in Berkeley DB code
1495 * fix math functions
1496 \f
1497 Version 2.0.1
1499 * fixed lots of header problems (especially Linux/GNU specific)
1501 * dynamic loader preserves all registers
1503 * Roland McGrath provided support for handling of auxiliary objects in
1504 the ELF dynamic loader.
1506 * support for parallel builds is improved
1507 \f
1508 Version 2.0
1510 * GNU extensions are no longer declared by default. To enable them you
1511 must define the macro `_GNU_SOURCE' in your program or compile with
1512 `-D_GNU_SOURCE'.
1514 * The library has changed from using GNU ld symbol aliases to using weak
1515 symbols where available. The ELF object file format supports weak
1516 symbols; GNU ld also supports weak symbols in the a.out format. (There
1517 is also now support for other GNU ld extensions in ELF. Use the
1518 `--with-elf' option to configure to indicate you have ELF, and
1519 `--with-gnu-ld' if using GNU ld.) This change resulted in the deletion
1520 of many files which contained only symbol aliases, reducing the size of
1521 the source and the compiled library; many other files were renamed to
1522 less cryptic names previously occupied by the symbol alias files.
1523 There is a new header file <elf.h> for programs which operate on
1524 files in the ELF format.
1526 * Converted to Autoconf version 2, so `configure' has more options.
1527 Run `configure --help' to see the details.
1529 * The library can now be configured to build profiling, highly-optimized
1530 (but undebuggable), and/or shared libraries (ELF with GNU ld only). The
1531 `--enable-profile', `--enable-omitfp', and `--enable-shared' options to
1532 `configure' enable building these extra libraries. The shared library is
1533 built by default when using both ELF and GNU ld. When shared libraries
1534 are enabled, the new library `-ldl' is available for arbitrary run-time
1535 loading of shared objects; its interface is defined in <dlfcn.h>. The
1536 new header file <link.h> gives access to the internals of the run-time
1537 dynamic linker, `ld.so'. The shell script `ldd' is similar to the
1538 application of same name on other systems and it provides information
1539 about dynamically linked binaries.
1541 * The C library now provides the run-time support code for profiling
1542 executables compiled with `-pg'. Programs can control the profiling code
1543 through the interface in <sys/gmon.h>. The `gmon.out' files written by
1544 the GNU C library can be read only by GNU `gprof' (from GNU binutils);
1545 the support for this file format was contributed by David Mosberger-Tang.
1547 * The math code has been replaced with a math library based on fdlibm from
1548 Sun, and modified by JT Conklin and Ulrich Drepper with i387 support, by
1549 Ian Taylor with `float' functions and by Ulrich Drepper with `long double'
1550 functions. The math functions now reside in a separate library, so
1551 programs using them will need to use `-lm' their linking commands.
1553 * John C. Bowman contributed optimized ix87 assembler inline functions.
1555 * Ulrich Drepper has contributed support for an `/etc/nsswitch.conf'
1556 mechanism similar to that found in Solaris 2. This is now used for the
1557 group, passwd, hosts, networks, services, protocols, rpc, ethers,
1558 shadow, netgroup, publickey, and alias databases. The `nsswitch.conf'
1559 file controls what services are used for each individual database. This
1560 works by loading shared libraries with names specified in `nsswitch.conf',
1561 so service modules can be changed or added at any time without even
1562 relinking any program. Currently there are the file, db, and NIS based
1563 NSS services available.
1565 * The new functions `strtoq' and `strtouq' parse integer values from
1566 strings, like `strtol' and `strtoul', but they return `long long int' and
1567 `unsigned long long int' values, respectively (64-bit quantities).
1569 * The new functions `strtof' and `strtold' parse floating-point values from
1570 strings, like `strtod', but they return `float' and `long double' values,
1571 respectively (on some machines `double' and `long double' are the same).
1573 * Ulrich Drepper has contributed new implementations of the floating-point
1574 printing and reading code used in the `printf' family of functions and
1575 `strtod', `strtof', and `strtold'. These new functions are perfectly
1576 accurate, and much faster than the old ones.
1578 * The implementation of the POSIX locale model was completely rewritten by
1579 Ulrich Drepper. This includes the new programs `localedef' and `locale'
1580 to compile the POSIX locale definition.
1582 * The former dummy implementations of the strcoll and strxfrm function are
1583 now replaced by fully functional code contributed by Ulrich Drepper. The
1584 collation information comes from the POSIX locale definitions.
1586 * The new header <langinfo.h> defines an interface for accessing
1587 various locale-dependent data (using the locale chosen with `setlocale').
1589 * Ulrich Drepper has contributed a new suite of functions for operation on
1590 wide-character and multibyte-character strings, in <wchar.h>;
1591 and classification and case conversion of wide characters, in <wctype.h>.
1592 These new functions are conforming to the ISO C, Amendement 1 specification.
1594 * There is now a second implementation of the standard I/O library available.
1595 It comes from GNU libg++ as was written by Per Bothner, heavily modified
1596 by Hongjiu Lu and made thread safe by Ulrich Drepper.
1598 * You can now use positional parameter specifications in format strings
1599 for the `printf' and `scanf' families of functions. For example,
1600 `printf ("Number %2$d, Mr %1$s\n", "Jones", 6);'' prints
1601 ``Number 6, Mr Jones''. This is mainly useful when providing different
1602 format strings for different languages, whose grammars may dictate
1603 different orderings of the values being printed. To support this
1604 feature, the interface for `register_printf_handler' has changed; see
1605 the header file <printf.h> for details.
1607 * The `printf' and `scanf' families of functions now understand a new
1608 formatting flag for numeric conversions: the ' flag (e.g. %'d or %'f) says
1609 to group numbers as indicated by the locale; for `scanf' and friends, this
1610 says to accept as valid only a number with all the proper grouping
1611 separators in the right places. In the default "C" locale, numbers are
1612 not grouped; but locales for specific countries will define the usual
1613 conventions (i.e. separate thousands with `,' in the US locale).
1615 * The pgrp functions have been regularized, slightly incompatibly but much
1616 less confusingly. The core functions are now `getpgid' and `setpgid',
1617 which take arguments for the PID to operate on; the POSIX.1 `getpgrp' (no
1618 argument) and BSD `setpgrp' (identical to `setpgid') functions are
1619 provided for compatibility. There is no longer an incompatible `getpgrp'
1620 with an argument declared under _BSD_SOURCE; no BSD code uses it.
1622 * The new header file <fts.h> and suite of functions simplify programs that
1623 operate on directory trees. This code comes from 4.4 BSD.
1625 * The resolver code has been updated from the BIND 4.9.5-P1 release.
1626 Parts of the code were heavily modified by Ulrich Drepper to fit in the
1627 NSS scheme used in glibc.
1629 * There is a new malloc debugging hook `__memalign_hook'.
1631 * There are new typedefs `ushort' for `unsigned short int' and `uint' for
1632 `unsigned int' in <sys/types.h>. These are for compatibility only and
1633 their use is discouraged.
1635 * The `-lmcheck' library to enable standard malloc debugging hooks is now
1636 done differently, so that it works even without GNU ld.
1638 * New function `euidaccess' checks allowed access to a file like `access',
1639 but using the effective IDs instead of the real IDs.
1641 * The time zone data files have been updated for the latest and greatest
1642 local time conventions of the countries of the world.
1644 * The new function `dirfd' extracts the file descriptor used by a DIR stream;
1645 see <dirent.h>.
1647 * The new functions `ecvt', `fcvt', and `gcvt' provide an obsolete interface
1648 for formatting floating-point numbers. They are provided only for
1649 compatibility; new programs should use `sprintf' instead. There are
1650 also equivalent function for the `long double' floating-point type and
1651 all functions also exist in a reentrant form.
1653 * The new auxiliary library `-lutil' from 4.4 BSD contains various
1654 functions for maintaining the login-record files (primarily of use to
1655 system programs such as `login'), and convenient functions for
1656 allocating and initializing a pseudo-terminal (pty) device.
1658 * Ulrich Drepper has contributed new support for System V style
1659 shared memory and IPC on systems that support it.
1661 * Ulrich Drepper has contributed several miscellaneous new functions found
1662 in System V: The `hsearch' family of functions provide an effective
1663 implementation of hash tables; `a64l' and `l64a' provide a very simple
1664 binary to ASCII mapping; `drand48' and friends provide a 48-bit random
1665 number generator.
1667 * Ulrich Drepper has contributed new reentrant counterparts for the
1668 `random' and `hsearch' families of functions; `random_r', `hsearch_r', etc.
1670 * Ulrich Drepper has contributed new, highly-optimized versions of several
1671 string functions for the i486/Pentium family of processors.
1673 * Ulrich Drepper has updated the Linux-specific code, based largely
1674 on work done in Hongjiu Lu's version of GNU libc for Linux.
1675 The GNU library now supports Linux versions 2.0.10 and later,
1676 using the ELF object file format (i[3456]86-*-linux).
1678 * Andreas Schwab has ported the C library to Linux/m68k (m68k-*-linux).
1680 * David Mosberger-Tang and Richard Henderson have ported the C library
1681 to Linux/Alpha (alpha-*-linux). Richard Henderson contributed the
1682 dynamic linking support for ELF/Alpha.
1684 * Richard Henderson contributed several Alpha optimized assembler function
1685 for arithmetic and string handling.
1687 * Ulrich Drepper has contributed a new set of message catalog functions to
1688 support multiple languages using the <libintl.h> interface, for use with
1689 his new package GNU gettext. Translation volunteers have contributed
1690 catalogs of the library's messages in Spanish, German, and Korean.
1692 * For compatibility with XPG4, Ulrich Drepper has contributed the `gencat'
1693 program and the `catgets' function for reading the catalog files it
1694 creates. (The <libintl.h> interface is preferred; we include the
1695 <nl_types.h> interface using `catgets' only for source compatibility with
1696 programs already written to use it.)
1698 * New header file <values.h> gives SVID-compatible names for <limits.h>
1699 constants.
1701 * Various new macros, declarations, and small header files for compatibility
1702 with 4.4 BSD.
1704 * New function `group_member' is a convenient way to check if a process has
1705 a given effective group ID.
1707 * When using GCC 2.7 and later, the socket functions are now declared in a
1708 special way so that passing an argument of type `struct sockaddr_in *',
1709 `struct sockaddr_ns *', or `struct sockaddr_un *' instead of the generic
1710 `struct sockaddr *' type, does not generate a type-clash warning.
1712 * New function `error' declared in header file <error.h> is a convenient
1713 function for printing error messages and optionally exiting; this is the
1714 canonical function used in GNU programs. The new functions `err', `warn',
1715 and friends in header file <err.h> are the canonical 4.4 BSD interface for
1716 doing the same thing.
1718 * The <glob.h> interface has several new flags from 4.4 BSD that extend the
1719 POSIX.2 `glob' function to do ~ and {...} expansion.
1721 * New function `unsetenv' complements `setenv' for compatibility with 4.4 BSD.
1722 `clearenv' which is used in POSIX.9 is also available.
1724 * New function `getsid' returns session ID number on systems that support it.
1726 * We have incorporated the 4.4 BSD `db' library (version 1.85). New header
1727 files <db.h> and <mpool.h> provide a rich set of functions for several
1728 types of simple databases stored in memory and in files, and <ndbm.h> is
1729 an old `ndbm'-compatible interface using the `db' functions. Link with
1730 `-ldb' to get these functions.
1732 * New macro `strdupa' copies a string like `strdup', but uses local stack
1733 space from `alloca' instead of dynamic heap space from `malloc'.
1735 * New function `strnlen' is like `strlen' but searches only a given maximum
1736 number of characters for the null terminator. `stpncpy', `strndup' and
1737 `strndupa' are similar variants for the `stpcpy', `strdup' and `strdupa'
1738 function.
1740 * New function `statfs' in header <sys/statfs.h>.
1742 * The new <argz.h> and <envz.h> interfaces contributed by Miles Bader
1743 provide convenient functions for operating on blocks of null-terminated
1744 strings.
1746 * A new suite of functions in <utmp.h> handle all the details of reading
1747 and writing the utmp file.
1749 * An implementation of the NIS/YP(tm) based NSS service was contributed by
1750 Thorsten Kukuk.
1752 * Paul Eggert and Ulrich Drepper modified the `strftime' function to be
1753 completely POSIX compliant and also implemented the extended functionality
1754 to handle alternate digit representation and alternate era date formats.
1756 * Ulrich Drepper provided an implementation of the `strptime' function
1757 defined in XPG4.2 which transforms a string into a `struct tm' value.
1759 * Paul Eggert provided the tzselect shell script as part of the timezone
1760 code. The shell script makes it easy to select the correct timezone
1761 specification.
1763 * The implementation of the malloc family of functions is completely replaced
1764 by a new implementation by Doug Lea with many improvements by Wolfram Gloger.
1765 The implementation uses the mmap function (if available) and it is
1766 optimized for the use in multi threaded programs.
1768 * Ulrich Drepper contributed a MD5 "encryption" for the crypt family of
1769 functions. This new functionality is usable by specifying a special
1770 salt string and it is compatible with implementation on *BSD systems.
1772 * Lots of functions from the XPG4.2 standard were added by Ulrich Drepper:
1773 `getsubopt' to handle second level command line options, `bsd_signal'
1774 to access BSD style `signal' functionality, the obsolete `regexp' style
1775 expression matcher.
1777 * the `lchown' function is available on system which support this
1778 functionality.
1780 * The implementation of the shadow password handling function was contributed
1781 by Ulrich Drepper.
1783 * David Mosberger-Tang changed the SunRPC implementation to be 64bit safe.
1785 * POSIX.1g support was added. The <sys/select.h> header is available,
1786 `isfdtype' and `pselect' are implemented. Craig Metz contributed an
1787 implementation of `getaddrinfo'.
1788 \f
1789 Version 1.09
1791 * For cross-compilation you should now set `BUILD_CC' instead of `HOST_CC'.
1793 * New header file <fstab.h> and new functions `getfsspec', `getfsent' and
1794 friends, for parsing /etc/fstab. This code comes from 4.4 BSD.
1796 * The new function `daemon' from 4.4 BSD is useful for server programs that
1797 want to put themselves in the background.
1799 * Joel Sherrill has contributed support for several standalone boards that
1800 run without an operating system.
1802 * `printf', `scanf' and friends now accept a `q' type modifier for long
1803 long int as well as `ll'. Formats using these might be `%qu' or `%lld'.
1805 * All of the code taken from BSD (notably most of the math and networking
1806 routines) has been updated from the BSD 4.4-Lite release.
1808 * The resolver code has been updated from the BIND-4.9.3-BETA9 release.
1810 * The new functions `getdomainname' and `setdomainname' fetch or change the
1811 YP/NIS domain name. These are system calls which exist on systems which
1812 have YP (aka NIS).
1814 * The time zone data files have been updated for the latest international
1815 conventions.
1817 * The SunRPC programs `portmap' and `rpcinfo' are now installed in
1818 $(sbindir) (usually /usr/local/sbin) instead of $(bindir).
1819 \f
1820 Version 1.08
1822 * The C library now includes support for Sun RPC, from Sun's free
1823 RPCSRC-4.0 distribution. The `portmap', `rpcinfo', and `rpcgen' programs
1824 are included. (There is still no support for YP.)
1826 * Tom Quinn has contributed a port of the C library to SGI machines running
1827 Irix 4 (mips-sgi-irix4).
1829 * The new `lockf' function is a simplified interface to the locking
1830 facilities of `fcntl', included for compatibility.
1832 * New time functions `timegm', `timelocal', and `dysize' for compatibility.
1834 * New header file <sys/timeb.h> and new function `ftime' for compatibility.
1836 * New header files <poll.h> and <sys/poll.h> and new function `poll' for
1837 compatibility.
1839 * The error message printed by `assert' for a failed assertion now includes
1840 the name of the program (if using GNU ld) and the name of the calling
1841 function (with versions of GCC that support this).
1843 * The `psignal' function is now declared in <signal.h>, not <stdio.h>.
1845 * The library now includes the <sys/mman.h> header file and memory
1846 management functions `mmap', `munmap', `mprotect', `msync', and
1847 `madvise', on systems that support those facilities.
1849 * The interface for `mcheck' has changed slightly: the function called to
1850 abort the program when an allocation inconsistency is detected now takes
1851 an argument that indicates the type of failure. The new function
1852 `mprobe' lets you request a consistency check for a particular block at
1853 any time (checks are normally done only when you call `free' or `realloc'
1854 on a block).
1856 * It is now possible to easily cross-compile the C library, building on one
1857 system a library to run on another machine and/or operating system. All
1858 you need to do is set the variable `HOST_CC' in `configparms' to the
1859 native compiler for programs to run on the machine you are building on (a
1860 few generator programs are used on Unix systems); set `CC' to the
1861 cross-compiler.
1863 * The new function `fexecve' (only implemented on the GNU system) executes
1864 a program file given a file descriptor already open on the file.
1865 \f
1866 Version 1.07
1868 * Brendan Kehoe has contributed most of a port to the DEC Alpha
1869 running OSF/1 (alpha-dec-osf1). He says it is 75% complete.
1871 * You can set the variable `libprefix' in `configparms' to specify a prefix
1872 to be prepended to installed library files; this makes it easy to install
1873 the GNU C library to be linked as `-lgnuc' or whatever.
1875 * The new `stpncpy' is a cross between `stpcpy' and `strncpy': It
1876 copies a limited number of characters from a string, and returns the
1877 address of the last character written.
1879 * You no longer need to check for whether the installed `stddef.h' is
1880 compatible with the GNU C library. configure now checks for you.
1882 * You can now define a per-stream `fileno' function to convert the
1883 stream's cookie into an integral file descriptor.
1885 * ``malloc (0)'' no longer returns a null pointer. Instead, it
1886 allocates zero bytes of storage, and returns a unique pointer which
1887 you can pass to `realloc' or `free'. The behavior is undefined if
1888 you dereference this pointer.
1890 * The C library now runs on Sony NEWS m68k machines running either
1891 NewsOS 3 or NewsOS 4.
1893 * The new `syscall' function is a system-dependent primitive function
1894 for invoking system calls. It has the canonical behavior on Unix
1895 systems, including unreliable return values for some calls (such as
1896 `pipe', `fork' and `getppid').
1898 * The error code `EWOULDBLOCK' is now obsolete; it is always defined
1899 to `EAGAIN', which is the preferred name. On systems whose kernels
1900 use two distinct codes, the C library now translates EWOULDBLOCK to
1901 EAGAIN in every system call function.
1902 \f
1903 Version 1.06
1905 * The GNU C Library Reference Manual is now distributed with the library.
1906 `make dvi' will produce a DVI file of the printed manual.
1907 `make info' will produce Info files that you can read on line using C-h i
1908 in Emacs or the `info' program.
1909 Please send comments on the manual to bug-glibc-manual@gnu.org.
1911 * The library now supports SVR4 on i386s (i386-unknown-sysv4).
1913 * Brendan Kehoe has contributed a port to Sun SPARCs running Solaris 2.
1915 * Jason Merrill has contributed a port to the Sequent Symmetry running
1916 Dynix version 3 (i386-sequent-dynix).
1918 * The library has been ported to i386s running SCO 3.2.4 (also known as SCO
1919 ODT 2.0; i386-unknown-sco3.2.4) or SCO 3.2 (i386-unknown-sco3.2).
1921 * New function `memory_warnings' lets you arrange to get warnings when
1922 malloc is running out of memory to allocate, like Emacs gives you.
1924 * The C library now contains the relocating allocator used in Emacs 19 for
1925 its editing buffers. This allocator (ralloc) minimizes allocation
1926 overhead and fragmentation by moving allocated regions around whenever it
1927 needs to. You always refer to a ralloc'd region with a "handle" (a
1928 pointer to a pointer--an object of type `void **').
1930 * There is a new `printf' format: `%m' gives you the string corresponding
1931 to the error code in `errno'.
1933 * In `scanf' formats, you can now use `%as' or `%a[' to do the normal `%s'
1934 or `%[' conversion, but instead of filling in a fixed-sized buffer you
1935 pass, the `a' modifier says to fill in a `char **' you pass with a
1936 malloc'd string.
1938 * The `fnmatch' function supports the new flag bits `FNM_LEADING_DIR' and
1939 `FNM_CASEFOLD'. `FNM_LEADING_DIR' lets a pattern like `foo*' match a
1940 name like `foo/bar'. `FNM_CASEFOLD' says to ignore case in matching.
1942 * `mkstemp' is a traditional Unix function to atomically create and open a
1943 uniquely-named temporary file.
1944 \f
1945 Version 1.05
1947 * The standard location for the file that says what the local timezone is
1948 has changed again. It is now `/usr/local/etc/localtime' (or more
1949 precisely, `${prefix}/etc/localtime') rather than `/etc/localtime'.
1951 * The distribution no longer contains any files with names longer than 14
1952 characters.
1954 * `struct ttyent' has two new flag bits: TTY_TRUSTED and TTY_CONSOLE.
1955 These are set by the new `trusted' and `console' keywords in `/etc/ttys'.
1957 * New functions `ttyslot' and `syslog' from 4.4 BSD.
1958 \f
1959 Version 1.04
1961 * The configuration process has changed quite a bit. The `configure'
1962 script is now used just like the configuration scripts for other GNU
1963 packages. The `sysdeps' directory hierarchy is much rearranged.
1964 The file `INSTALL' explains the new scheme in detail.
1966 * The header files no longer need to be processed into ANSI C and
1967 traditional C versions. There is just one set of files to install, and
1968 it will work with ANSI or old C compilers (including `gcc -traditional').
1970 * Brendan Kehoe and Ian Lance Taylor have ported the library to the
1971 MIPS DECStation running Ultrix 4.
1973 * The Sun 4 startup code (crt0) can now properly load SunOS 4 shared libraries.
1974 Tom Quinn contributed the initial code. The GNU C library can NOT yet be
1975 made itself into a shared library.
1977 * Yet further improved support for the i386, running 4.3 BSD-like systems
1978 (such as Mach 3 with the Unix single-server), or System V.
1980 * New function `strncasecmp' to do case-insensitive string comparison
1981 with limited length.
1983 * New function `strsep' is a reentrant alternative to `strtok'.
1985 * New functions `scandir' and `alphasort' for searching directories.
1987 * New function `setenv' is a better interface to `putenv'.
1989 * Ian Lance Taylor has contributed an implementation of the SVID `ftw'
1990 function for traversing a directory tree.
1992 * The GNU obstack package is now also part of the C library.
1993 The new function `open_obstack_stream' creates a stdio stream that
1994 writes onto an obstack; `obstack_printf' and `obstack_vprintf' do
1995 formatted output directly to an obstack.
1997 * Miscellaneous new functions: reboot, nice, sigaltstack (4.4 BSD only),
1998 cfmakeraw, getusershell, getpass, swab, getttyent, seteuid, setegid.
2000 * `FNM_FILE_NAME' is another name for `FNM_PATHNAME', used with `fnmatch'.
2002 * The new functions `strfry' and `memfrob' do mysterious and wonderful
2003 things to your strings.
2005 * There are some new test programs: test-fseek, testmb, and testrand.
2007 * Some work has been done to begin porting the library to 4.4 BSD and Linux.
2008 These ports are not finished, but are a good starting place for really
2009 supporting those systems.
2011 * `/etc/localtime' is now the standard location for the file that says what
2012 the local timezone is, rather than `/usr/local/lib/zoneinfo/localtime'.
2013 This follows the general principle that `/etc' is the place for all local
2014 configuration files.
2016 * The C library header files now use `extern "C"' when used by the C++
2017 compiler, so the C library should now work with C++ code.
2019 * The header file <bstring.h> is gone. <string.h> now declares bcopy,
2020 bcmp, bzero, and ffs. (Update: nowadays these functions are declared
2021 in <strings.h>.)
2023 * Mike Haertel (of GNU e?grep and malloc fame) has written a new sorting
2024 function which uses the `merge sort' algorithm, and is said to be
2025 significantly faster than the old GNU `qsort' function. Merge sort is
2026 now the standard `qsort' function. The new algorithm can require a lot
2027 of temporary storage; so, the old sorting function is called when the
2028 required storage is not available.
2030 * The C library now includes Michael Glad's Ultra Fast Crypt, which
2031 provides the Unix `crypt' function, plus some other entry points.
2033 * The code and header files taken from 4.4 BSD have been updated with the
2034 latest files released from Berkeley.
2035 \f
2036 ----------------------------------------------------------------------
2037 Copyright information:
2039 Copyright (C) 1992-2009, 2010, 2011 Free Software Foundation, Inc.
2041 Permission is granted to anyone to make or distribute verbatim copies
2042 of this document as received, in any medium, provided that the
2043 copyright notice and this permission notice are preserved,
2044 thus giving the recipient permission to redistribute in turn.
2046 Permission is granted to distribute modified versions
2047 of this document, or of portions of it,
2048 under the above conditions, provided also that they
2049 carry prominent notices stating who last changed them.
2050 \f
2051 Local variables:
2052 version-control: never
2053 fill-column: 76
2054 End: