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1 GNU C Library NEWS -- history of user-visible changes. 2012-1-7
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 13526, 13527, 13528, 13529, 13531, 13532, 13533, 13547, 13555
14 * ISO C11 support:
16 + define static_assert
18 + do not declare gets
20 + declare at_quick_exit and quick_exit also for ISO C11
22 + aligned_alloc. NB: The code is deliberately allows the size parameter
23 to not be a multiple of the alignment. This is a moronic requirement
24 in the standard but it is only a requirement on the caller, not the
25 implementation.
27 + timespec_get added
29 + uchar.h support added
31 * Support for the IA-64 is removed and could live in ports.
32 \f
33 Version 2.15
35 * The following bugs are resolved with this release:
37 6779, 6783, 9696, 10103, 10709, 11589, 12403, 12786, 12840, 12847, 12868,
38 12852, 12874, 12885, 12892, 12906, 12907, 12922, 12935, 12962, 13007,
39 13021, 13061, 13062, 13067, 13068, 13085, 13088, 13090, 13092, 13096,
40 13114, 13118, 13123, 13134, 13138, 13147, 13150, 13166, 13179, 13185,
41 13189, 13192, 13268, 13276, 13282, 13291, 13305, 13328, 13335, 13337,
42 13344, 13358, 13367, 13413, 13416, 13423, 13439, 13446, 13472, 13484,
43 13506, 13515, 13523, 13524, 13538, 13540
45 * New program pldd to list loaded object of a process
46 Implemented by Ulrich Drepper.
48 * Add nss_db support back to glibc. No more dependency on Berkeley db
49 and support for initgroups lookups.
50 Implemented by Ulrich Drepper.
52 * Optimized strcpy, strncpy, stpcpy, stpncpy for SSE2 and SSSE3 on x86-32.
53 Contributed by HJ Lu.
55 * Improved strcpy, strncpy, stpcpy, stpncpy for SSE2 and SSSE3 on x86-64.
56 Contributed by HJ Lu.
58 * Optimized strcat, strncat on x86-64 and optimized wcscmp, wcslen, strnlen
59 on x86-32 and x86-64.
60 Contributed by Liubov Dmitrieva.
62 * Optimized strchr and strrchr for SSE on x86-32.
63 Contributed by Liubov Dmitrieva.
65 * Optimized memchr, memrchr, rawmemchr, memcmp, wmemcmp, wcschr, wcscpy
66 for x86-64 and x86-32.
67 Contributed by Liubov Dmitrieva.
69 * New interfaces: scandirat, scandirat64
70 Implemented by Ulrich Drepper.
72 * Checking versions of FD_SET, FD_CLR, and FD_ISSET added.
73 Implemented by Ulrich Drepper.
75 * nscd now also caches the netgroup database.
76 Implemented by Ulrich Drepper.
78 * Integrate libm with gcc's -ffinite-math-only option.
79 Implemented by Ulrich Drepper.
81 * Lots of generic, 64-bit, and x86-64-specific performance optimizations
82 to math functions. Implemented by Ulrich Drepper.
84 * Optimized strcasecmp and strncasecmp for AVX on x86-64.
85 Implemented by Ulrich Drepper.
87 * New Linux interfaces: process_vm_readv, process_vm_writev
89 * Optimized strcasecmp and strncasecmp for SSSE3 and SSE4.2 on x86-32.
90 Implemented by Ulrich Drepper.
92 * Optimized nearbyint and strcasecmp for PPC.
93 Implemented by Adhemerval Zanella.
95 * New locales: bho_IN, unm_US, es_CU, ta_LK
96 \f
97 Version 2.14
99 * The following bugs are resolved with this release:
101 386, 6420, 7101, 9730, 9732, 9809, 10138, 10149, 10157, 11099, 11257,
102 11258, 11487, 11532, 11558, 11578, 11634, 11653, 11668, 11697, 11724,
103 11781, 11799, 11820, 11837, 11857, 11869, 11892, 11895, 11901, 11945,
104 11947, 11952, 11987, 12052, 12083, 12158, 12178, 12200, 12346, 12350,
105 12393, 12420, 12432, 12445, 12449, 12453, 12454, 12460, 12469, 12489,
106 12509, 12510, 12511, 12518, 12527, 12541, 12545, 12551, 12582, 12583,
107 12587, 12597, 12601, 12611, 12625, 12626, 12631, 12650, 12653, 12655,
108 12660, 12671, 12681, 12684, 12685, 12711, 12713, 12714, 12717, 12723,
109 12724, 12734, 12738, 12746, 12766, 12775, 12777, 12782, 12788, 12792,
110 12795, 12811, 12813, 12814, 12841
112 * The RPC implementation in libc is obsoleted. Old programs keep working
113 but new programs cannot be linked with the routines in libc anymore.
114 Programs in need of RPC functionality must be linked against TI-RPC.
115 The TI-RPC implementation is IPv6 enabled and there are other benefits.
117 Visible changes of this change include (obviously) the inability to link
118 programs using RPC functions without referencing the TI-RPC library and the
119 removal of the RPC headers from the glibc headers.
120 Implemented by Ulrich Drepper.
122 * New Linux interfaces: clock_adjtime, name_to_handle_at, open_by_handle_at,
123 syncfs, setns, sendmmsg
125 * New locales: os_RU, bem_ZA, en_ZA, ff_SN, sw_KE, sw_TZ, lb_LU, wae_CH,
126 yue_HK, lij_IT, mhr_RU
128 * New encodings: CP770, CP771, CP772, CP773, CP774
130 * New program sotruss to trace calls through PLTs
131 Implemented by Ulrich Drepper.
133 * The malloc hook implementation is marked deprecated and will be removed
134 from the default implementation in the next version. The design never
135 worked ever since the introduction of threads. Even programs which do
136 not create threads themselves can use multiple threads created internally.
137 \f
138 Version 2.13
140 * The following bugs are resolved with this release:
142 3268, 6812, 7066, 10085, 10484, 10563, 10851, 11149, 11155, 11577, 11611,
143 11640, 11655, 11701, 11840, 11856, 11883, 11903, 11904, 11968, 11979,
144 12005, 12037, 12067, 12077, 12078, 12092, 12093, 12107, 12108, 12113,
145 12140, 12159, 12167, 12191, 12194, 12201, 12204, 12205, 12207, 12348,
146 12378, 12394, 12397
148 * New Linux interfaces: prlimit, prlimit64, fanotify_init, fanotify_mark
150 * POWER7 optimizations: memset, memcmp, strncmp
152 * New optimized string functions for x86-64: strnlen (SSE2),
153 strcasecmp (SSE2, SSSE3, SSE4.2), strncasecmp (SSE2, SSSE3, SSE4.2)
154 Implemented by Ulrich Drepper.
155 \f
156 Version 2.12
158 * The following bugs are resolved with this release:
160 3662, 4457, 5553, 10162, 10401, 10414, 10554, 10824, 10864, 10915, 10918,
161 10936, 10939, 10958, 10968, 10969, 10972, 10992, 11000, 11001, 11007,
162 11010, 11027, 11039, 11040, 11041, 11043, 11046, 11056, 11070, 11093,
163 11115, 11120, 11125, 11126, 11127, 11134, 11141, 11149, 11183, 11184,
164 11185, 11186, 11187, 11188, 11189, 11190, 11191, 11192, 11193, 11194,
165 11200, 11230, 11235, 11242, 11254, 11258, 11271, 11272, 11276, 11279,
166 11287, 11292, 11319, 11332, 11333, 11387, 11389, 11390, 11394, 11397,
167 11410, 11438, 11449, 11470, 11471, 11520, 11537, 11538, 11571
169 * New interfaces: pthread_getname_np, pthread_setname_np
171 * New Linux interface: recvmmsg
173 * STT_GNU_IFUNC implemented for Sparc by David Miller.
175 * The dynamic linker now recognizes supported ABI versions from the
176 EI_ABIVERSION field in the ELF header.
177 Implemented by Ulrich Drepper.
179 * New NIS mode selector ADJUNCT_AS_SHADOW. The passwd.adjunct.byname table
180 will not be used to fill in password fields in the passwd.byname replies.
181 Instead it is used to synthesize the shadow.byname table, should it be
182 missing. This is a useful mode in some installations involving Solaris.
183 Implemented by Ulrich Drepper.
185 * New locales: kok_IN, sq_MK, cv_RU
186 \f
187 Version 2.11
189 * The following bugs are resolved with this release:
191 3270, 7094, 9924, 9986, 10011, 10085, 10107, 10159, 10162, 10166, 10183,
192 10195, 10196, 10200, 10203, 10207, 10211, 10213, 10217, 10221, 10229,
193 10262, 10286, 10312, 10315, 10319, 10349, 10360, 10391, 10402, 10416,
194 10418, 10422, 10425, 10446, 10448, 10452, 10540, 10553, 10560, 10564,
195 10609, 10643, 10692, 10713, 10717, 10730, 10731, 10742, 10780, 10784,
196 10789, 10817, 10823, 10840, 10847
198 * New interfaces: execvpe, pthread_sigqueue, mkstemps, mkstemps64, mkostemps,
199 mkostemps64
200 Implemented by Ulrich Drepper.
202 * Checking version of longjmp added that fails if an uninitialized stack
203 frame would be created. Implemented by Ulrich Drepper.
205 * STT_GNU_IFUNC is now supported in static executables.
206 Implemented by H.J. Lu.
208 * STT_GNU_IFUNC implemented for PPC by Alan Modra.
210 * New optimized string functions for x86-64: strstr, strcasestr, memcmp,
211 strcspn, strpbrk, strspn, strcpy, stpcpy, strncpy, strcmp (SSE2, SSE4.2),
212 strncmp (SSE2, SSE4.2), strchr (SSE4.2), strrchr (SSE4.2).
213 Contributed by H.J. Lu.
215 strlen, rawmemchr, strcmp (SSSE3), strncmp (SSSE3).
216 Implemented by Ulrich Drepper.
218 * New optimized string functions for x86: strlen, strcspn, strspn, strpbrk,
219 strstr, strcasestr.
220 Contributed by H.J. Lu.
222 * Support for fma instruction in AVX on x86-64.
223 Implemented by H.J. Lu and Ulrich Drepper.
225 * AVX support in x86-64 auditing support in ld.so.
226 Implemented by H.J. Lu.
228 * STB_GNU_UNIQUE support added.
229 Implemented by Ulrich Drepper.
231 * Implement second fallback mode for optimized DNS lookup for even more
232 broken environments. If two requests from the same port are not
233 handled correctly close the socket and open a new one before sending
234 the second request. The 'single-request-reopen' option in /etc/resolv.conf
235 can be used to select this mode right away, instead of rediscovering the
236 necessity is every process again.
237 Implemented by Ulrich Drepper.
239 * New resolver flag RES_USE_DNSSEC to enable use of verified lookup.
240 Implemented by Adam Tkac.
242 * Optimized iconv conversions for S390x.
243 Implemented by Andreas Krebbel.
245 * Using condvars with PI mutexes is now more efficient due to kernel
246 support for requeueing to PI futexes. NPTL support added for x86-64.
247 Implemented by Ulrich Drepper.
249 * New locales: ps_AF, my_MM
250 \f
251 Version 2.10
253 * The following bugs are resolved with this release:
255 697, 5381, 5807, 6411, 6545, 7040, 7058, 7067, 7080, 7083, 7095, 7098,
256 9677, 9694, 9697, 9701, 9704, 9705, 9706, 9720, 9726, 9730, 9733, 9736,
257 9741, 9750, 9753, 9759, 9781, 9791, 9793, 9823, 9833, 9844, 9880, 9881,
258 9891, 9893, 9895, 9913, 9916, 9920, 9948, 9955, 9957, 9963, 9985, 10052,
259 10069, 10086, 10087, 10090, 10092, 10093, 10100, 10118, 10128
261 * New interfaces: preadv, preadv64, pwritev, pwritev64, malloc_info
262 Implemented by Ulrich Drepper.
264 * New Linux interfaces: accept4, fallocate, fallocate64.
265 Implemented by Ulrich Drepper.
267 * Correct declarations of string function when used in C++ code. This
268 could lead to compile errors for invalid C++ code.
270 * XPG7/POSIX 2008 compilation environment. Many GNU-specific functions are
271 now in POSIX.
273 * New POSIX 2008 interface: psiginfo
274 Implemented by Ulrich Drepper.
276 * New ISO C++1x interfaces: quick_exit, at_quick_exit
277 Implemented by Ulrich Drepper.
279 * Support for selecting between multiple function definitions at runtime
280 using STT_GNU_IFUNC symbols. Implemented by Ulrich Drepper.
282 * The libcrypt library can now use the hash function implementations in
283 NSS. Implemented by Ulrich Drepper.
285 * The malloc implementation can be compiled to be less memory efficient
286 but higher performing in multi-threaded programs.
287 Implemented by Ulrich Drepper.
289 * New locales: nan_TW@latin, ks_IN
291 * Faster strlen, strchr, strchrnul, strrchr, memchr, and rawmemchr for x86-64.
292 Implemented by Ulrich Drepper.
294 * Extended printf hook support. It is possible to use user-defined types
295 and extend existing format specifiers.
296 Implemented by Ulrich Drepper.
298 * Handling for group shadow files has been added.
299 Implemented by Ulrich Drepper.
301 * DNS IPv4-IPv6 parallel lookup now deals better with broken DNS
302 servers (the case, e.g., for some people using the built-in DNS
303 server in ADSL modems/routers). There is a once-per-process timeout
304 in case of a broken server. To avoid it, users can run nscd or put
305 'options single-request' in /etc/resolv.conf.
306 Implemented by Ulrich Drepper.
307 \f
308 Version 2.9
310 * The following bugs are resolved with this release:
312 3406, 5209, 5210, 5381, 5794, 5814, 5911, 6428, 6438, 6442, 6447, 6461,
313 6472, 6505, 6544, 6589, 6612, 6634, 6653, 6654, 6657, 6698, 6712, 6713,
314 6719, 6723, 6724, 6740, 6763, 6771, 6790, 6791, 6817, 6824, 6839, 6843,
315 6845, 6856, 6857, 6860, 6867, 6875, 6919, 6920, 6942, 6947, 6955, 6966,
316 6968, 6974, 6980, 6995, 7008, 7009, 7029
318 * Unified lookup for getaddrinfo: IPv4 and IPv6 addresses are now looked
319 up at the same time. Implemented by Ulrich Drepper.
321 * TLS descriptors for LD and GD on x86 and x86-64.
322 Implemented by Alexandre Oliva.
324 * getaddrinfo now handles DCCP and UDPlite.
325 Implemented by Ulrich Drepper.
327 * New fixed-size conversion macros: htobe16, htole16, be16toh, le16toh,
328 htobe32, htole32, be32toh, le32toh, htobe64, htole64, be64toh, le64toh.
329 Implemented by Ulrich Drepper.
331 * New implementation of memmem, strstr, and strcasestr which is O(n).
332 Implemented by Eric Blake.
334 * New Linux interfaces: inotify_init1, dup3, epoll_create1, pipe2
336 * Implement "e" option for popen to open file descriptor with the
337 close-on-exec flag set. Implemented by Ulrich Drepper.
339 * Implement "b" mode for fmemopen. In this mode writes writes don't
340 implicitly add a NUL byte and seeks from the end of the buffer really
341 use the buffer end, not the string length as the basis.
342 Implemented by Ulrich Drepper.
344 * Many functions, exported and internal, now atomically set the close-on-exec
345 flag when run on a sufficiently new kernel. Implemented by Ulrich Drepper.
347 * Sorting rules for some Indian languages (Kannada, Gurumukhi, Telugu,
348 Sinhala)
349 Implemented by Pravin Satpute.
351 * New locales: sd_IN, sd_IN@devanagari, ks_IN@devanagari, ht_HT, en_AG, nl_AW.
352 \f
353 Version 2.8
355 * The following bugs are resolved with this release:
357 2549, 3112, 4314, 4407, 4997, 5012, 5040, 5112, 5204, 5208, 5209, 5220,
358 5222, 5224, 5225, 5237, 5238, 5240, 5245, 5277, 5346, 5375, 5378, 5382,
359 5424, 5427, 5428, 5435, 5436, 5439, 5441, 5442, 5443, 5451, 5452, 5454,
360 5455, 5463, 5464, 5465, 5475, 5477, 5478, 5520, 5541, 5545, 5553, 5600,
361 5602, 5607, 5614, 5627, 5628, 5736, 5737, 5741, 5753, 5760, 5762, 5768,
362 5774, 5777, 5778, 5779, 5786, 5790, 5818, 5854, 5857, 5903, 5939, 5979,
363 5983, 5995, 5998, 6004, 6007, 6020, 6021, 6024, 6040, 6042
365 * New locales: bo_CN, bo_IN, shs_CA.
367 * New encoding: HP-ROMAN9, HP-GREEK8, HP-THAI8, HP-TURKISH8.
369 * Sorting rules for some Indian languages (Devanagari and Gujarati).
370 Implemented by Pravin Satpute.
372 * IPV6 addresses in /etc/resolv.conf can now have a scope ID
374 * nscd caches now all timeouts for DNS entries
375 Implemented by Ulrich Drepper.
377 * nscd is more efficient and wakes up less often.
378 Implemented by Ulrich Drepper.
380 * More checking functions: asprintf, dprintf, obstack_printf, vasprintf,
381 vdprintf, and obstack_vprintf.
382 Implemented by Jakub Jelinek.
384 * Faster memset for x86-64.
385 Implemented by Harsha Jagasia and H.J. Lu.
387 * Faster memcpy on x86.
388 Implemented by Ulrich Drepper.
390 * ARG_MAX is not anymore constant on Linux. Use sysconf(_SC_ARG_MAX).
391 Implemented by Ulrich Drepper.
393 * Faster sqrt and sqrtf implemention for some PPC variants.
394 Implemented by Stephen Munroe.
395 \f
396 Version 2.7
398 * The following bugs are resolved with this release:
400 4125, 4126, 4178, 4359, 4407, 4512, 4514, 4525, 4554, 4556, 4557, 4566,
401 4582, 4586, 4588, 4599, 4610, 4647, 4702, 4705, 4726, 4745, 4772, 4773,
402 4775, 4776, 4792, 4813, 4814, 4816, 4833, 4858, 4860, 4896, 4905, 4925,
403 4936, 4937, 4938, 4941, 4946, 4963, 4972, 5010, 5028, 5043, 5058, 5063,
404 5071, 5103, 5104, 5112, 5113, 5184, 5186
406 * More checking functions: fread, fread_unlocked, open*, mq_open.
407 Implemented by Jakub Jelinek and Ulrich Drepper.
409 * Extend fortification to C++. Implemented by Jakub Jelinek.
411 * Implement 'm' modifier for scanf. Add stricter C99/SUS compliance
412 by not recognizing 'a' as a modifier when those specs are requested.
413 Implemented by Jakub Jelinek.
415 * PPC optimizations to math and string functions.
416 Implemented by Steven Munroe.
418 * New interfaces: mkostemp, mkostemp64. Like mkstemp* but allow additional
419 options to be passed. Implemented by Ulrich Drepper.
421 * More CPU set manipulation functions. Implemented by Ulrich Drepper.
423 * New Linux interfaces: signalfd, eventfd, eventfd_read, and eventfd_write.
424 Implemented by Ulrich Drepper.
426 * Handle private futexes in the NPTL implementation.
427 Implemented by Jakub Jelinek and Ulrich Drepper.
429 * Add support for O_CLOEXEC. Implement in Hurd. Use throughout libc.
430 Implemented by Roland McGrath and Ulrich Drepper.
432 * Linux/x86-64 vDSO support. Implemented by Ulrich Drepper.
434 * SHA-256 and SHA-512 based password encryption.
435 Implemented by Ulrich Drepper.
437 * New locales: ber_DZ, ber_MA, en_NG, fil_PH, fur_IT, fy_DE, ha_NG, ig_NG,
438 ik_CA, iu_CA, li_BE, li_NL, nds_DE, nds_NL, pap_AN, sc_IT, tk_TM, ug_CN,
439 yo_NG.
441 + New iconv modules: MAC-CENTRALEUROPE, ISO-8859-9E, KOI8-RU.
442 Implemented by Ulrich Drepper.
443 \f
444 Version 2.6
446 * The following bugs are resolved with this release:
448 3156, 3213, 3285, 3291, 3306, 3313, 3320, 3322, 3325, 3326, 3334, 3348,
449 3352, 3363, 3369, 3426, 3427, 3429, 3451, 3458, 3465, 3480, 3483, 3493,
450 3514, 3515, 3559, 3632, 3664, 3673, 3674, 3745, 3747, 3818, 3840, 3842,
451 3851, 3855, 3884, 3885, 3902, 3905, 3919, 3944, 3954, 3955, 3957, 3991,
452 3995, 3996, 4024, 4040, 4069, 4070, 4074, 4076, 4096, 4101, 4102, 4114,
453 4130, 4131, 4181, 4276, 4306, 4342, 4344, 4349, 4364, 4368, 4381, 4392,
454 4403, 4405, 4406, 4411, 4438, 4439, 4455, 4456, 4465, 4512, 4514, 4586,
455 4702, 4858
457 * New Linux interfaces: epoll_pwait, sched_getcpu.
459 * New generic interfaces: strerror_l.
461 * nscd can now cache the services database. Implemented by Ulrich Drepper.
462 \f
463 Version 2.5
465 * The following bugs are resolved with this release:
467 39, 68, 192, 352, 388, 531, 935, 1006, 1201, 1203, 1386, 1782, 1783, 1784,
468 1785, 1786, 1787, 1951, 1974, 1996, 2072, 2098, 2125, 2134, 2158, 2182,
469 2349, 2376, 2386, 2389, 2415, 2418, 2420, 2423, 2450, 2451, 2466, 2472,
470 2473, 2477, 2498, 2499, 2501, 2502, 2505, 2507, 2508, 2509, 2517, 2526,
471 2569, 2571, 2592, 2611, 2625, 2632, 2644, 2662, 2680, 2683, 2684, 2693,
472 2695, 2703, 2734, 2751, 2764, 2766, 2775, 2792, 2821, 2823, 2832, 2841,
473 2843, 2883, 2892, 2908, 2914, 2926, 2961, 2978, 2980, 2987, 2997, 2998,
474 3013, 3018, 3034, 3040, 3044, 3123, 3124, 3137, 3138, 3143, 3155, 3189,
475 3225, 3251, 3252, 3253, 3273
477 * For Linux, the sorting of addresses returned by getaddrinfo now also
478 handles rules 3, 4, and 7 from RFC 3484. I.e., all rules are handled.
479 Implemented by Ulrich Drepper.
481 * Allow system admin to configure getaddrinfo with the /etc/gai.conf file.
482 Implemented by Ulrich Drepper.
484 * New Linux interfaces: splice, tee, sync_file_range, vmsplice.
486 * New iconv module for MIK. Contributed by Alexander Shopov.
488 * For sites with broken group and/or passwd database, the auto-propagate
489 option of nscd can prevent creating ID lookup entries from the results
490 of a name lookup and vice versa. This usually is no problem but some
491 site might have problems with the default behavior.
492 Implemented by Ulrich Drepper.
494 * Iterating over entire database in NIS can be slow. With the
495 SETENT_BATCH_READ option in /etc/default/nss a system admin can decide
496 to trade time for memory. The entire database will be read at once.
497 Implemented by Ulrich Drepper.
499 * The interfaces introduced in RFC 3542 have been implemented by
500 Ulrich Drepper.
502 * Support for the new ELF hash table format was added by Ulrich Drepper.
504 * Support for priority inheritance mutexes added by Jakub Jelinek and
505 Ulrich Drepper.
507 * Support for priority protected mutexes added by Jakub Jelinek.
509 * New locales: nr_ZA, pa_PK, ca_AD, ca_FR, ca_IT, el_CY, tr_CY, as_IN,
510 or_IN, csb_PL, fy_NL, sr_ME.
511 \f
512 Version 2.4
514 * More overflow detection functions.
516 * New iconv converters for IBM1025, IBM1122, IBM1137, IBM1153,
517 IBM1154, IBM1155, IBM1156, IBM1157, and IBM1158 contributed by Jiro Sekiba.
519 More converters for IBM803, IBM901, IBM902, IBM921, IBM1008, IBM1097,
520 IBM1112, IBM1123, IBM1130, IBM1140, IBM1141, IBM1142, IBM1143, IBM1144,
521 IBM1145, IBM1146, IBM1147, IBM1148, IBM1149, IBM1166, IBM1167, IBM4517,
522 IBM4899, IBM4909, IBM4971, IBM5347, IBM9030, IBM9066, IBM9448, IBM12712,
523 IBM16804, IBM1364, IBM1371, IBM1388, IBM1390, and IBM1399 contributed
524 by Masahide Washizawa.
526 * It is now possible to install audit libraries for the dynamic linker using
527 LD_AUDIT. Implemented by Ulrich Drepper.
529 * The LinuxThreads add-on, providing pthreads on Linux 2.4 kernels, is no
530 longer supported. The new NPTL implementation requires Linux 2.6 kernels.
531 For a libc and libpthread that works well on Linux 2.4 kernels, we
532 recommend using the stable 2.3 branch.
534 * The new function open_wmemstream acts like open_memstream,
535 but uses a wchar_t wide character buffer.
537 * The new function ppoll is an improved version of poll, similar to pselect.
539 * New interfaces: fdopendir, openat, fstatat, fchmodat, fchownat,
540 futimesat, faccessat, mkdirat, mkfifoat, mknodat,
541 renameat, unlinkat, linkat, symlinkat, readlinkat.
543 * New Linux kernel system calls: unshare,
544 inotify_init, inotify_add_watch, inotify_rm_watch.
546 * The euidaccess function is now also known by the alias eaccess,
547 for compatibility with some other systems.
549 * Timezone data updated to 2006b version.
550 \f
551 Version 2.3.6
553 * The following bugs are resolved with this release:
555 38, 253, 549, 622, 653, 721, 758, 851, 877, 915, 934, 955, 961,
556 1016, 1037, 1076, 1079, 1080, 1081, 1082, 1083, 1084, 1085, 1086,
557 1087, 1088, 1090, 1091, 1092, 1093, 1094, 1095, 1096, 1097, 1098,
558 1099, 1100, 1101, 1102, 1103, 1104, 1105, 1106, 1107, 1108, 1109,
559 1110, 1111, 1112, 1113, 1125, 1137, 1138, 1249, 1250, 1251, 1252,
560 1253, 1254, 1350, 1358, 1394, 1438, 1498, 1534
562 Visit <http://sources.redhat.com/bugzilla/> for the details of each bug.
564 * As of this release, GCC 4 can be used to compile the C Library.
566 * Timezone data updated to 2005m version.
567 \f
568 Version 2.3.5
570 * The following bugs are resolved with this release:
572 284, 592, 602, 626, 633, 640, 650, 661, 671, 681, 693, 700, 710, 719,
573 722, 723, 725, 726, 727, 728, 729, 730, 731, 732, 733, 734, 735, 736,
574 737, 738, 739, 740, 741, 742, 743, 744, 745, 765, 767, 768, 769, 776,
575 777, 787, 821, 822, 823, 825
577 Visit <http://sources.redhat.com/bugzilla/> for the details of each bug.
578 \f
579 Version 2.3.4
581 * Support for RFC 3678. Real implementations exist only for Linux so far.
582 Implemented by Ulrich Drepper.
584 * nscd can now cache entries persistently. Expiring entries are reloaded.
585 For speedups the cache can be shared in memory with client processes.
586 Implemented by Ulrich Drepper.
588 * nscd can now perform SELinux checks.
589 Implemented by Matthew Rickard <mjricka@epoch.ncsc.mil>.
591 * getaddrinfo queries are now cached. Canonical name lookup is performed
592 efficiently.
593 Implemented by Ulrich Drepper.
595 * The nothrow function attribute is used when headers are used by gcc when
596 compiling C code. This can avoid significant amounts of exception
597 handling data.
599 * The malloc functions perform more error checking and are stricter when
600 it comes to reacting on errors. The default action is to terminate
601 the process after showing an error message. Implemented by Ulrich Drepper.
603 * Reverse lookups of IPv6 addresses does not use bit string or .ip6.int
604 lookups anymore unless explicitly requested. Implemented by Ulrich Drepper.
606 * Namespaces in ld.so are implemented. DSOs can be loaded in separate
607 namespaces using the new function dlmopen(). This feature is of course,
608 like most other dynamic loading functionality, not available in statically
609 linked applications. Implemented by Ulrich Drepper.
611 * Low-overhead boundary checking variants of string and some stdio functions
612 were added. These are to be used in conjunction with a gcc patch by
613 Jakub Jelinek which adds calls to these functions if possible.
614 Implemented by Jakub Jelinek and Ulrich Drepper.
616 * Old code for several operating systems and machine architectures that
617 have not been in working condition in a long time have been removed from
618 the main source tree maintained by the GNU C Library's maintainers.
619 These files are now reside in the separate `ports' source module
620 that is usable as an add-on when building the library.
621 \f
622 Version 2.3.3
624 * New functions `dladdr1' and `dlinfo' in <dlfcn.h> provide more ways to
625 interrogate the dynamic linker, compatible with the Solaris interface.
627 * ELF thread-local storage support (TLS) now works on PowerPC and PowerPC64;
628 implemented by Paul Mackerras, Steven Munroe, and Roland McGrath.
630 * getifaddrs now uses the netlink interface on Linux to get its information.
631 Implemented by Thorsten Kukuk.
633 * getaddrinfo now implements AI_V4MAPPED, AI_ALL, and AI_ADDRCONF.
634 Implemented by Ulrich Drepper.
636 * support for non-executable stacks on x86 has been added. Changes mostly
637 by Roland McGrath.
639 * regex is now much faster for multibyte locales. Changes by Jakub Jelinek
640 and Ulrich Drepper.
642 * getaddrinfo now performs destination address selection according to
643 RFC 3484.
644 \f
645 Version 2.3.2
647 * Thread-safe interfaces for many functions that access locale data
648 were added in version 2.3, but these features were omitted from NEWS.
649 Many functions have variants with an `_l' suffix that take a `locale_t'
650 object as a parameter rather than consulting the current locale.
651 The new functions `newlocale', `duplocale', and `freelocale' in <locale.h>
652 create and maintain `locale_t' objects. Additionally, the new function
653 `uselocale' sets "the current locale" (as used by functions not so
654 parameterized) set for an individual thread. These features were added
655 in version 2.3, implemented by Ulrich Drepper and Roland McGrath.
657 * The functions getresuid, getresgid, setresuid, and setresgid, which
658 have long been available on Linux, are now declared in <unistd.h>
659 and are now also available on the Hurd.
661 * ELF thread-local storage support (TLS) now works on x86-64.
663 * The new dynamic string token $LIB is expanded in shared library names.
664 This normally expands to lib, but on some 64-bit platforms to lib64 instead.
666 * Aldy Hernandez contributed complete software floating point support for
667 PowerPC machines with no FPU.
669 * fexecve is implemented on Linux.
671 * The `btowc' function should work at least twice as fast due to
672 specialized callbacks in the iconv modules. Implemented by Bruno Haible.
674 * With approriate thread add-ons cancelable functions are now implemented
675 in libc.so as well. No need to call the function in libpthread. This
676 change allowed to finally disable the incorrect and expensive handling
677 of weak definition in ld.so.
679 * Yet more PLT entries in libc.so have been removed. We finally arrived
680 at the bare minimum. Startup times improved appropriately.
682 * Support for the new Linux/x86 system call interface was added. The
683 AT_SYSINFO auxiliary vector entry is recognized and handled.
684 \f
685 Version 2.3
687 * Masahide Washizawa contributed iconv modules for IBM1163 and IBM1164
688 charsets.
690 * iconv (the program and the interface) now accepts empty names (excluding
691 options like //TRANSLIT) to mean "use charset of current locale".
693 * localedef can now transliterate characters in strings which are not in
694 the provided charmap. The information from the input locale is used.
696 * Prelinking support was added for ELF targets. This requires additional
697 tools and recent versions of the GNU binutils. Contributed by Jakub Jelinek.
699 * Read-only stdio streams now use mmap to speed up operation by eliminating
700 copying and buffer underflows. To use add 'm' to the mode string of
701 the fopen/fdopen/freopen call. Implemented by Ulrich Drepper.
703 * The malloc functions were completely rewritten by Wolfram Gloger based
704 on Doug Lea's malloc-2.7.0.c.
706 * Isamu Hasegawa contributed a completely new and POSIX-conformant
707 implementation of regex.
709 * Bruno Haible upgraded the iconv and locale implementation to support
710 Unicode 3.2.
712 * Contents of the LC_* and LANG environment variables in the CEN style are
713 not recognized anymore. It never was used. Change by Ulrich Drepper.
715 * The runtime (ld.so, libc, libpthread for Linux) now can handle the ELF
716 thread-local storage (TLS) ABI on some platforms.
717 Changes by Ulrich Drepper. SH support by Kaz Kojima.
719 * Bruno Haible contributed iconv converters for ISO-2022-JP-3, SHIFT JIS-X0213,
720 EUC-JISX0213, and TSCII.
722 * New header <ifaddrs.h> with functions `getifaddrs' and `freeifaddrs':
723 BSD-compatible interface for getting all network interface addresses.
724 Implementation for IPv4 by Roland McGrath.
726 * Loading of locale data is faster due to the introduction of a locale
727 archive. Implemented by Roland McGrath and Ulrich Drepper.
729 * Startup times are significantly reduced by not using exported functions
730 inside the library itself. Changes by Jakub Jelinek, Roland McGrath,
731 and Ulrich Drepper.
733 * Steven Munroe contributed a port to PowerPC64/Linux.
734 \f
735 Version 2.2.6
737 * The Hurd now uses the GNU libio implementation of stdio rather than the
738 old GNU stdio implementation, and uses a new ABI (libc.so.0.3).
740 * The Hurd on x86 now has the `ioperm' function and <sys/io.h> header file
741 with the same behavior as the Linux system call of the same name.
742 \f
743 Version 2.2.5
745 * Stephen Moshier implemented log2, log10, powl and cbrtl for the
746 128-bit long double format.
748 * Masahide Washizawa contributed iconv modules for IBM1132, IBM1133, IBM1160,
749 IBM1161, and IBM1162 charsets.
751 * Andreas Jaeger contributed a port to x86-64/Linux.
753 * Peter Bruin contributed a port to PowerPC/Hurd.
755 * libc functions using I/O streams now can handle wide-oriented streams
756 as well.
758 * optimizations in the dynamic linker. Binaries created by recent binutils
759 versions start up quicker due to reduced time spent on relocations.
761 * Support for use of gcc3 added by Jakub Jelinek and HJ Lu.
762 \f
763 Version 2.2.4
765 * Stephen Moshier implemented cosh, expm1, log1p, acos, sinh, tanh,
766 asinh, atanh, j0 for the 128-bit long double format.
768 * Bruno Haible updated all the code handling Unicode in some form to
769 support Unicode 3.1.
771 * Speed of regex for single-byte locales is back to previous levels.
772 Patch by Isamu Hasegawa.
774 * Alpha, SPARC, and IA-64 now also using floating stacks.
776 * Startup time of internationalized applications greatly improved through
777 iconv cache. Use iconvconfig to generate the cache file.
778 Contributed by Ulrich Drepper.
780 * The IA-64 specific part of ld.so was rewritten to eliminate some pretty
781 severe performance problems. Patch by David Mosberger.
783 * The Hurd port got a lot more functionality like AIO, various stdio
784 extensions, etc. Mainly done by Roland McGrath.
786 * mtrace can now lookup symbols in shared libraries.
787 \f
788 Version 2.2.3
790 * Intel's IA-64 math library is largely integrated. It provides fast and
791 accurate implementatations for most basic and standard math functions
792 in float, double, and long double format.
794 * Stephen Moshier implemented j0, j1, jn, y0, y1, yn, lgamma, erf, erfc,
795 and asin for the 96-bit long double format and asin, log, tan for the
796 128-bit long double format.
798 * The beginning of a last-bit accurate math library by IBM Haifa were added.
799 The basic double functions exist today. Contributed by Abraham Ziv
800 <ziv@il.ibm.com>, Moshe Olshansky <olshansk@il.ibm.com>, Ealan Henis
801 <ealan@il.ibm.com>, and Anna Reitman <reitman@il.ibm.com>.
803 * An asynchronous name lookup library was added. The interface is designed
804 after POSIX AIO. The proposal was circulated beforehand to get comments.
805 No negative ones came in. Implemented by Ulrich Drepper.
807 * Port to S390/64bit contributed by Martin Schwidefsky
808 <schwidefsky@de.ibm.com>.
810 * David Mosberger <davidm@hpl.hp.com> implemented the setcontext family
811 of functions for Linux/IA-64.
813 * The RPC code is now thread safe. Threads can now use the same service
814 of different services at the same time. Patch by Eric Norum
815 <eric.norum@usask.ca> with some help by Ulrich Drepper.
817 * Martin Schwidefsky <schwidefsky@de.ibm.com> implemented the setcontext
818 family of functions for Linux/S390.
820 * Ulrich Drepper <drepper@redhat.com> implemented the setcontext family
821 of functions for Linux/x86.
823 * Port to Linux/CRIS contributed by Axis Communications.
824 \f
825 Version 2.2.2
827 * Lots of headers were cleaned up. Using the tool in the conform/ subdir
828 we can now check for namespace violations and missing declarations. The
829 result is that almost all headers are now Unix-compliant (as defined in
830 the upcoming XPG6). The negative side is that some programs might need
831 corrections, too, if they depend on the incorrect form of the headers in
832 previous versions which defined too many symbols and included too many
833 other headers.
835 * regex now handles multibyte character sets correctly.
836 Contributed by Isamu Hasegawa <isamu@yamato.ibm.com>.
838 * iconv (the program) does now conform to the upcoming XPG6 and handles
839 charmaps. Instead of the charset names the path of charmaps can be
840 provided and the conversion happens based on this data.
841 Contributed by Ulrich Drepper.
843 * The locale program now provides detailed information about the installed
844 locales. While
846 locale -a
848 only lists the names of the supported locales
850 locale -a --verbose
852 provides details such as country, language, and codeset name.
853 Contributed by Ulrich Drepper.
854 \f
855 Version 2.2.1
857 * The gencat program now parses the input file according to the charset
858 selected by the LC_CTYPE category. This is important for stateful
859 character sets. To make generating catalogs easier there is a way
860 to overwrite the charset selected by the locale: before the first
861 message or $ quote line the catalog can contain a line like
863 $ codeset=ISO-8859-2
865 to select the charset (ISO-8859-2 in this case).
867 Implemented by Shinya Hanataka and Ulrich Drepper.
869 * New codeset conversion modules: IBM-922 (Estonia PC codeset),
870 IBM-1124 (Ukraine PC codeset), IBM-1129 (Vietnamese PC codeset).
871 Contributed by Masahide Washizawa <washi@jp.ibm.com>.
873 * Optimized string functions for Alpha ev6 and ev67 by Richard Henderson
874 <rth@redhat.com> and Rick Gorton <rick.gorton@alpha-processor.com>.
876 * The LANGUAGE environment variable is now ignored unless the locale is
877 changed from the default "C" locale.
879 * The usual bug fixes.
880 \f
881 Version 2.2
883 * Greg McGary added runtime support for bounds checking using gcc's
884 new -fbounded-pointers option. ix86 target is complete. PowerPC
885 is in progress.
887 * Thorsten Kukuk added secure mode support to nscd.
889 * The Berkeley db libraries have been removed.
891 Related, the nss_db module is now in a separate package since it
892 obviously requires a database library being available.
894 * Wide character I/O streams implemented by Ulrich Drepper.
896 * Functions from the extended socket API added by Ulrich Drepper.
898 * Functions feenableexcept and fedisableexcept to control the
899 behaviour of individual exceptions have been added by Andreas Jaeger.
901 * ldconfig program added by Andreas Jaeger and Jakub Jelinek.
903 * The resolver code has been updated from bind 8.2.3-T5B which supports
904 threads. The integration was done by Andreas Jaeger, Adam D. Bradley,
905 and Mark Kettenis.
907 This change could in some situations effect backward compatibility. Since
908 now `_res' is a thread-local instead of a global variable, modifying it
909 in one thread does not have any effect in other threads.
911 The resolver library was also extended to allow IPv6 as the transport
912 protocol for the requests. This work was done by Stig Venaas.
914 * Compatibility code for K&R C compilers has been removed from the
915 header files. A ISO C compiler is needed to use the library
916 (conforming to either C89 or C99 standard).
918 * Complete rewrite of the localedef program to support multibyte character
919 sets. Implement handling of ISO 14651 and ISO 14652. Rewrite strcoll,
920 strxfrm, wcscoll, and wcsxfrm functions. Make isw*() functions work.
921 Implemented by Ulrich Drepper.
923 Bruno Haible significantly improved the generation and use of the data
924 structures for the wide character tables.
926 * Plural handling in gettext implemented by Ulrich Drepper.
928 * The utmp daemon has been removed.
930 * The port to MIPS-Linux has been finished by Andreas Jaeger.
932 * A port to Hitachi SH3 and SH4 has been contributed by Kazumoto Kojima
933 and Yutaka Niibe.
935 * POSIX clocks and timers implemented by Kaz Kylheku and Ulrich Drepper.
937 * POSIX barriers implemented by Kaz Kylheku.
939 * POSIX spawn function family implemented by Ulrich Drepper.
941 * POSIX spinlocks are now available.
943 * Timed wait functions for mutex, rwlock, and semaphores are implemented.
945 * the configure option --enable-kernel=X.Y.Z allows to strip out
946 compatibility for kernel versions before X.Y.Z. This is currently only
947 implemented for Linux.
949 * the sockaddr_in6 structure changed. The IPv6 working group added a new
950 field sin6_scope_id. This means that all programs using IPv6 should be
951 recompiled. Don't expect binary compatibility with previous glibc
952 versions.
954 * various conversion modules for IBM character sets contributed by
955 Masahide Washizawa.
957 * IA-64 port by Jes Sorensen and HJ Lu.
959 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
960 Compiling the GNU C Library for Linux/ia64
961 ******************************************
963 Please refer to the file INSTALL in the same directory as you found
964 this file for general information about configuring and compiling
965 glibc.
967 For general inquiries about glibc under Linux/ia64 please use the
968 following mailing list linux-ia64@linuxia64.org or one of the relevant
969 glibc mailing lists.
971 Recommended Tools for Compilation
972 =================================
974 In order for glibc-2.2 to build correctly on the ia64 you need at
975 least the following versions of the GNU tools (the :
977 * The Cygnus toolchain snapshot for the ia64 as of August 4
978 including the provided set of patches. It is however recommend
979 you use the October 24 toolchain snapshot or a more recent version.
981 OR alternatively you can try the following (the Cygnus toolchain is
982 the recommended solution):
984 * GCC and binutils, GAS and GNU LD out of CVS from
985 sources.redhat.com as of August 28, 2000 or later. The CVS tree
986 may require special patches to work properly on the ia64.
988 Configuring and compiling GNU Libc for Linux/ia64
989 =================================================
991 The library requires Linux kernel version 2.4.0-test4-000728 or
992 later to funtion properly. Besides that it support for debug libraries
993 is currently untested. Hence the following options
994 are required for configuring the library:
996 --disable-debug --enable-kernel=2.4.0
998 It is also important that you make sure the library picks up the
999 appropriate kernel header files, if you do not have recent enough
1000 kernel headers in /usr/src/linux/include, you should use the
1001 --with-headers=<path> option to specify the location.
1003 As an example I personally use the following options to configure
1004 the library:
1006 --disable-debug
1007 --disable-cvs
1008 --enable-kernel=2.4.0
1009 --host=ia64-linux
1010 --enable-add-ons=yes
1011 --prefix=/usr
1012 --with-headers=/home/jes/linux/include
1015 Good luck
1017 Jes Sorensen <jes@linuxcare.com>,
1018 November 14th, 2000
1019 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1020 \f
1021 Version 2.1.3
1023 * bug fixes
1025 \f
1026 Version 2.1.2
1028 * bug fixes
1030 \f
1031 Version 2.1.1
1033 * New ISO C 9x function _Exit, imaxabs, and imaxdiv are added.
1035 * New xdr functions are added; some rpc functions are now 64bit clean.
1037 * Fixed a number of bugs and memory leaks (especially in NIS+ code).
1039 * Fixed known incompatibilities with glibc 2.0.
1041 * New functions lock64, strchrnul, rawmemchr, getutmp and getutmpx.
1043 * Optimized a number of functions (especially the ELF dynamic loader).
1045 * Update timezone data files.
1047 * lots of charmaps corrections
1049 * some new locale definitions and charmaps
1051 \f
1052 Version 2.1
1054 * Richard Henderson corrected size of struct timeval on Linux/Alpha to
1055 conform to POSIX member type requirements. Symbol versions have been
1056 adjusted as needed within the library, and for direct use by applications,
1057 but there is potential for problems if third-party libraries use
1058 struct timeval as part of their interface. This does not present
1059 a problem for X and other "essential" system libraries.
1061 * An additional locale model to support C++ Standard Library locale
1062 model and probably more was implemented by Ulrich Drepper.
1064 * Eric Youngdale and Ulrich Drepper implemented versioning of objects on
1065 symbol level.
1067 * Miles Bader provided the `argp' function family to support hierachical
1068 command line argument parsing, layered on top of getopt.
1070 * strtod accepts new hexadecimal floating-point format from ISO C 9X.
1072 * printf has two new specifiers %a and %A to print hexadecimal flaoting-point
1073 numbers.
1075 * scanf recognizes the %a and %A format for scanning floating point numbers.
1077 * the new headers <stdint.h> and <inttypes.h> from ISO C 9X provides
1078 information and interfaces for the available integer types.
1080 * about 130 new math functions were added to implement the ISO C9x math
1081 library.
1083 * the new header <complex.h> contains definitions of the complex math
1084 functions from ISO C 9X.
1086 * the new header <tgmath.h> defines generic macros to use complex or
1087 real valued functions.
1089 * Thorsten Kukuk provided an implementation for NIS+, securelevel 0, 1 and 2.
1091 * Andreas Jaeger provided a test suite for the math library.
1093 * Mark Kettenis implemented the utmpx interface and an utmp daemon.
1095 * Ulrich Drepper added character set conversion functions (iconv).
1097 * Optimized string functions have been added.
1099 * The localedata addon is now part of glibc.
1101 * An implementation of profiling shared libraries was added by Ulrich Drepper.
1103 * Thorsten Kukuk and Ulrich Drepper provided an implementation for a caching
1104 daemon for NSS (nscd).
1106 Missing a better place here are some numbers on improvements. Under
1107 Linux 2.1.125 un-tar-ing the kernel sources takes
1109 user system wall
1111 using local files 12.19s 6.88s 22.91s
1113 using NIS 13.92s 8.91s 26.34s
1115 using NIS & nscd 10.37s 7.34s 25.30s
1117 using NIS+ 27.57s 30.37s 640.46s
1119 using NIS+ & nscd 10.25s 7.83s 26.51s
1121 using NIS & old nscd [1] 13.83s 8.32s 29.60s
1123 Keep in mind that non-namelookup related operations dominate above times.
1124 It was just a common complain that using NIS+ unpacking the kernel is
1125 horribly slow.
1127 [1] The old nscd implementation is not available anymore since it was
1128 distributed with glibc up to version 2.0.98 and thus is now replaced.
1130 * Tim Waugh provided an implementation of the POSIX.2 wordexp function family.
1132 * Mark Kettenis provided a Hesiod NSS module.
1134 * The ELF dynamic loader knows how to process dynamic string tokens ($ORIGIN
1135 and $PLATFORM) in RPATHs and similar strings (Ulrich Drepper).
1137 * rcmd can now handle netgroups (Dick Streefland).
1139 * A port to the ARM was contributed by Phil Blundell, Pat Beirne and Scott
1140 Bambrough.
1142 * Support for the IPv6 protocol has been added to the socket API, as per the
1143 latest draft standards.
1145 * Support for Linux 2.2 has been added.
1147 * Interface changes relative to the latest 2.0.x release:
1148 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1149 addseverity NEW: Unix98
1150 alphasort64 NEW: LFS
1151 argp_err_exit_status NEW: argp, GNU ext
1152 argp_error NEW: argp, GNU ext
1153 argp_failure NEW: argp, GNU ext
1154 argp_help NEW: argp, GNU ext
1155 argp_parse NEW: argp, GNU ext
1156 argp_program_bug_address NEW: argp, GNU ext
1157 argp_program_version NEW: argp, GNU ext
1158 argp_program_version_hook NEW: argp, GNU ext
1159 argp_state_help NEW: argp, GNU ext
1160 argp_usage NEW: argp, GNU ext
1161 authdes_create NEW: Secure RPC
1162 authdes_getucred NEW: Secure RPC
1163 authdes_pk_create NEW: Secure RPC
1164 backtrace NEW: GNU ext.
1165 backtrace_symbols NEW: GNU ext.
1166 backtrace_symbols_fd NEW: GNU ext.
1167 cacos NEW: ISO C 9x
1168 cacosf NEW: ISO C 9x
1169 cacosh NEW: ISO C 9x
1170 cacoshf NEW: ISO C 9x
1171 cacoshl NEW: ISO C 9x
1172 cacosl NEW: ISO C 9x
1173 capget NEW: kernel
1174 capset NEW: kernel
1175 carg NEW: ISO C 9x
1176 cargf NEW: ISO C 9x
1177 cargl NEW: ISO C 9x
1178 casin NEW: ISO C 9x
1179 casinf NEW: ISO C 9x
1180 casinh NEW: ISO C 9x
1181 casinhf NEW: ISO C 9x
1182 casinhl NEW: ISO C 9x
1183 casinl NEW: ISO C 9x
1184 catan NEW: ISO C 9x
1185 catanf NEW: ISO C 9x
1186 catanh NEW: ISO C 9x
1187 catanhf NEW: ISO C 9x
1188 catanhl NEW: ISO C 9x
1189 catanl NEW: ISO C 9x
1190 cbc_crypt NEW: Secure RPC
1191 ccos NEW: ISO C 9x
1192 ccosf NEW: ISO C 9x
1193 ccosh NEW: ISO C 9x
1194 ccoshf NEW: ISO C 9x
1195 ccoshl NEW: ISO C 9x
1196 ccosl NEW: ISO C 9x
1197 cexp NEW: ISO C 9x
1198 cexpf NEW: ISO C 9x
1199 cexpl NEW: ISO C 9x
1200 cimag NEW: ISO C 9x
1201 cimagf NEW: ISO C 9x
1202 cimagl NEW: ISO C 9x
1203 clearerr_locked REMOVED
1204 clntunix_create NEW: sunrpc ext
1205 clog NEW: ISO C 9x
1206 clog10 NEW: ISO C 9x
1207 clog10f NEW: ISO C 9x
1208 clog10l NEW: ISO C 9x
1209 clogf NEW: ISO C 9x
1210 clogl NEW: ISO C 9x
1211 conj NEW: ISO C 9x
1212 conjf NEW: ISO C 9x
1213 conjl NEW: ISO C 9x
1214 cpow NEW: ISO C 9x
1215 cpowf NEW: ISO C 9x
1216 cpowl NEW: ISO C 9x
1217 cproj NEW: ISO C 9x
1218 cprojf NEW: ISO C 9x
1219 cprojl NEW: ISO C 9x
1220 creal NEW: ISO C 9x
1221 crealf NEW: ISO C 9x
1222 creall NEW: ISO C 9x
1223 creat64 NEW: LFS
1224 csin NEW: ISO C 9x
1225 csinf NEW: ISO C 9x
1226 csinh NEW: ISO C 9x
1227 csinhf NEW: ISO C 9x
1228 csinhl NEW: ISO C 9x
1229 csinl NEW: ISO C 9x
1230 csqrt NEW: ISO C 9x
1231 csqrtf NEW: ISO C 9x
1232 csqrtl NEW: ISO C 9x
1233 ctan NEW: ISO C 9x
1234 ctanf NEW: ISO C 9x
1235 ctanh NEW: ISO C 9x
1236 ctanhf NEW: ISO C 9x
1237 ctanhl NEW: ISO C 9x
1238 ctanl NEW: ISO C 9x
1239 des_setparity NEW: Secure RPC
1240 ecb_crypt NEW: Secure RPC
1241 endutxent NEW: Unix98
1242 exp10 NEW: ISO C 9x
1243 exp10f NEW: ISO C 9x
1244 exp10l NEW: ISO C 9x
1245 exp2 NEW: ISO C 9x
1246 exp2f NEW: ISO C 9x
1247 exp2l NEW: ISO C 9x
1248 fattach NEW: STREAMS
1249 fdetach NEW: STREAMS
1250 fdim NEW: ISO C 9x
1251 fdimf NEW: ISO C 9x
1252 fdiml NEW: ISO C 9x
1253 feclearexcept NEW: ISO C 9x
1254 fegetenv NEW: ISO C 9x
1255 fegetexceptflag NEW: ISO C 9x
1256 fegetround NEW: ISO C 9x
1257 feholdexcept NEW: ISO C 9x
1258 feof_locked REMOVED
1259 feraiseexcept NEW: ISO C 9x
1260 ferror_locked REMOVED
1261 fesetenv NEW: ISO C 9x
1262 fesetexceptflag NEW: ISO C 9x
1263 fesetround NEW: ISO C 9x
1264 fetestexcept NEW: ISO C 9x
1265 feupdateenv NEW: ISO C 9x
1266 fflush_locked REMOVED
1267 ffsl NEW: GNU ext.
1268 ffsll NEW: GNU ext.
1269 fgetpos64 NEW: LFS
1270 fgets_unlocked NEW: GNU ext.
1271 fileno_locked REMOVED
1272 fma NEW: ISO C 9x
1273 fmaf NEW: ISO C 9x
1274 fmal NEW: ISO C 9x
1275 fmax NEW: ISO C 9x
1276 fmaxf NEW: ISO C 9x
1277 fmaxl NEW: ISO C 9x
1278 fmin NEW: ISO C 9x
1279 fminf NEW: ISO C 9x
1280 fminl NEW: ISO C 9x
1281 fmtmsg NEW: Unix98
1282 fopen64 NEW: LFS
1283 fputc_locked REMOVED
1284 fputs_unlocked NEW: GNU ext.
1285 fread_unlocked NEW: GNU ext.
1286 freopen64 NEW: LFS
1287 fseeko NEW: Unix98
1288 fsetpos64 NEW: LFS
1289 fstatfs64 NEW: LFS
1290 fstatvfs NEW: Unix98
1291 fstatvfs64 NEW: LFS
1292 ftello NEW: Unix98
1293 ftello64 NEW: LFS
1294 ftruncate64 NEW: LFS
1295 ftw64 NEW: LFS
1296 fwrite_unlocked NEW: GNU ext.
1297 gai_strerror NEW: IPv6
1298 gamma_r REMOVED
1299 gammaf_r REMOVED
1300 gammal_r REMOVED
1301 getchar_locked REMOVED
1302 getdate NEW: Unix98
1303 getdate_err NEW: Unix98
1304 getdate_r NEW: GNU ext.
1305 getmsg NEW: STREAMS
1306 getnameinfo NEW: IPv6
1307 getnetname NEW: Secure RPC
1308 getpmsg NEW: STREAMS
1309 getpt NEW: Unix98 PTY
1310 getrlimit64 NEW: LFS
1311 getutxent NEW: Unix98
1312 getutxid NEW: Unix98
1313 getutxline NEW: Unix98
1314 glob64 NEW: GNU ext.
1315 globfree64 NEW: GNU ext.
1316 gnu_get_libc_release NEW: GNU ext.
1317 gnu_get_libc_version NEW: GNU ext.
1318 grantpt NEW: Unix98 PTY
1319 host2netname NEW: Secure RPC
1320 iconv NEW: iconv
1321 iconv_close NEW: iconv
1322 iconv_open NEW: iconv
1323 if_freenameindex NEW: IPv6
1324 if_indextoname NEW: IPv6
1325 if_nameindex NEW: IPv6
1326 if_nametoindex NEW: IPv6
1327 in6addr_any NEW: IPv6
1328 in6addr_loopback NEW: IPv6
1329 inet6_isipv4mapped NEW: IPv6
1330 isastream NEW: STREAMS
1331 iswblank NEW: GNU ext.
1332 key_decryptsession NEW: Secure RPC
1333 key_decryptsession_pk NEW: Secure RPC
1334 key_encryptsession NEW: Secure RPC
1335 key_encryptsession_pk NEW: Secure RPC
1336 key_gendes NEW: Secure RPC
1337 key_get_conv NEW: Secure RPC
1338 key_secretkey_is_set NEW: Secure RPC
1339 key_setnet NEW: Secure RPC
1340 key_setsecret NEW: Secure RPC
1341 llrint NEW: ISO C 9x
1342 llrintf NEW: ISO C 9x
1343 llrintl NEW: ISO C 9x
1344 llround NEW: ISO C 9x
1345 llroundf NEW: ISO C 9x
1346 llroundl NEW: ISO C 9x
1347 log2 NEW: ISO C 9x
1348 log2f NEW: ISO C 9x
1349 log2l NEW: ISO C 9x
1350 lrint NEW: ISO C 9x
1351 lrintf NEW: ISO C 9x
1352 lrintl NEW: ISO C 9x
1353 lround NEW: ISO C 9x
1354 lroundf NEW: ISO C 9x
1355 lroundl NEW: ISO C 9x
1356 lseek64 NEW: LFS
1357 makecontext NEW: Unix98
1358 mempcpy NEW: GNU ext.
1359 mmap64 NEW: LFS
1360 moncontrol REMOVED
1361 modify_ldt NEW: kernel
1362 nan NEW: ISO C 9x
1363 nanf NEW: ISO C 9x
1364 nanl NEW: ISO C 9x
1365 nearbyint NEW: ISO C 9x
1366 nearbyintf NEW: ISO C 9x
1367 nearbyintl NEW: ISO C 9x
1368 netname2host NEW: Secure RPC
1369 netname2user NEW: Secure RPC
1370 nexttoward NEW: ISO C 9x
1371 nexttowardf NEW: ISO C 9x
1372 nexttowardl NEW: ISO C 9x
1373 nftw NEW: Unix98
1374 nftw64 NEW: LFS
1375 open64 NEW: LFS
1376 passwd2des NEW: Secure RPC
1377 pow10 NEW: GNU ext.
1378 pow10f NEW: GNU ext.
1379 pow10l NEW: GNU ext.
1380 pread NEW: Unix98
1381 pread64 NEW: LFS
1382 printf_size NEW: GNU ext.
1383 printf_size_info NEW: GNU ext.
1384 profil_counter REMOVED
1385 pthread_mutexattr_getkind_np REPLACED
1386 pthread_mutexattr_setkind_np REPLACED
1387 ptsname NEW: Unix98 PTY
1388 ptsname_r NEW: Unix98 PTY
1389 putc_locked REMOVED
1390 putchar_locked REMOVED
1391 putgrent NEW: GNU ext.
1392 putmsg NEW: STREAMS
1393 putpmsg NEW: STREAMS
1394 pututxline NEW: Unix98
1395 pwrite NEW: Unix98
1396 pwrite64 NEW: LFS
1397 readdir64 NEW: LFS
1398 readdir64_r NEW: LFS
1399 remquo NEW: ISO C 9x
1400 remquof NEW: ISO C 9x
1401 remquol NEW: ISO C 9x
1402 round NEW: ISO C 9x
1403 roundf NEW: ISO C 9x
1404 roundl NEW: ISO C 9x
1405 rtime NEW: GNU ext.
1406 scalbln NEW: ISO C 9x
1407 scalblnf NEW: ISO C 9x
1408 scalblnl NEW: ISO C 9x
1409 scandir64 NEW: LFS
1410 sendfile NEW: kernel
1411 setcontext NEW: Unix98
1412 setrlimit64 NEW: LFS
1413 setutxent NEW: Unix98
1414 sighold NEW: Unix98
1415 sigignore NEW: Unix98
1416 sigqueue NEW: POSIX.1b
1417 sigrelse NEW: Unix98
1418 sigset NEW: POSIX.1b
1419 sigtimedwait NEW: POSIX.1b
1420 sigwaitinfo NEW: POSIX.1b
1421 sincos NEW: GNU ext.
1422 sincosf NEW: GNU ext.
1423 sincosl NEW: GNU ext.
1424 statfs64 NEW: LFS
1425 statvfs NEW: Unix98
1426 statvfs64 NEW: LFS
1427 strcasestr NEW: GNU ext.
1428 strtoimax NEW: ISO C 9x
1429 strtoumax NEW: ISO C 9x
1430 strverscmp NEW: GNU ext.
1431 svcauthdes_stats NEW: Secure RPC
1432 svcunix_create NEW: sunrpc etx
1433 svcunixfd_create NEW: sunrpc ext
1434 swapcontext NEW: Unix98
1435 tcgetsid NEW: Unix98 PTY
1436 tdestroy NEW: GNU ext.
1437 tgamma NEW: ISO C 9x
1438 tgammaf NEW: ISO C 9x
1439 tgammal NEW: ISO C 9x
1440 tmpfile64 NEW: LFS
1441 trunc NEW: ISO C 9x
1442 truncate64 NEW: LFS
1443 truncf NEW: ISO C 9x
1444 truncl NEW: ISO C 9x
1445 umount2 NEW: kernel
1446 unlockpt NEW: Unix98 PTY
1447 updwtmpx NEW: Unix98
1448 user2netname NEW: Secure RPC
1449 utmpxname NEW: Unix98
1450 versionsort NEW: GNU ext.
1451 versionsort64 NEW: GNU ext.
1452 waitid NEW: Unix98
1453 wcscasecmp NEW: GNU ext.
1454 wcsncasecmp NEW: GNU ext.
1455 wcsnlen NEW: GNU ext.
1456 wcstoimax NEW: ISO C 9x
1457 wcstoll NEW: ISO C 9x
1458 wcstoull NEW: ISO C 9x
1459 wcstoumax NEW: ISO C 9x
1460 wcswcs NEW: Unix98
1461 wordexp NEW: POSIX.2
1462 wordfree NEW: POSIX.2
1463 write_profiling REMOVED
1464 xdecrypt NEW: Secure RPC
1465 xdr_authdes_cred NEW: Secure RPC
1466 xdr_authdes_verf NEW: Secure RPC
1467 xdr_cryptkeyarg NEW: Secure RPC
1468 xdr_cryptkeyarg2 NEW: Secure RPC
1469 xdr_cryptkeyres NEW: Secure RPC
1470 xdr_getcredres NEW: Secure RPC
1471 xdr_key_netstarg NEW: Secure RPC
1472 xdr_key_netstres NEW: Secure RPC
1473 xdr_keybuf NEW: Secure RPC
1474 xdr_keystatus NEW: Secure RPC
1475 xdr_netnamestr NEW: Secure RPC
1476 xdr_sizeof NEW: Secure RPC
1477 xdr_unixcred NEW: sunrpc ext
1478 xencrypt NEW: Secure RPC
1479 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1480 \f
1481 Version 2.0.6
1483 * more bug fixes
1485 \f
1486 Version 2.0.5
1488 * more bug fixes
1490 * inet_ntoa is thread-safe
1492 * updwtmp is moved from libutil to libc
1494 * rewrite of cbrt function
1496 * update of timezone data
1497 \f
1498 Version 2.0.4
1500 * more bug fixes
1501 \f
1502 Version 2.0.3
1504 * more bug fixes
1505 \f
1506 Version 2.0.2
1508 * more bug fixes
1510 * add atoll function
1512 * fix complex problems in Berkeley DB code
1514 * fix math functions
1515 \f
1516 Version 2.0.1
1518 * fixed lots of header problems (especially Linux/GNU specific)
1520 * dynamic loader preserves all registers
1522 * Roland McGrath provided support for handling of auxiliary objects in
1523 the ELF dynamic loader.
1525 * support for parallel builds is improved
1526 \f
1527 Version 2.0
1529 * GNU extensions are no longer declared by default. To enable them you
1530 must define the macro `_GNU_SOURCE' in your program or compile with
1531 `-D_GNU_SOURCE'.
1533 * The library has changed from using GNU ld symbol aliases to using weak
1534 symbols where available. The ELF object file format supports weak
1535 symbols; GNU ld also supports weak symbols in the a.out format. (There
1536 is also now support for other GNU ld extensions in ELF. Use the
1537 `--with-elf' option to configure to indicate you have ELF, and
1538 `--with-gnu-ld' if using GNU ld.) This change resulted in the deletion
1539 of many files which contained only symbol aliases, reducing the size of
1540 the source and the compiled library; many other files were renamed to
1541 less cryptic names previously occupied by the symbol alias files.
1542 There is a new header file <elf.h> for programs which operate on
1543 files in the ELF format.
1545 * Converted to Autoconf version 2, so `configure' has more options.
1546 Run `configure --help' to see the details.
1548 * The library can now be configured to build profiling, highly-optimized
1549 (but undebuggable), and/or shared libraries (ELF with GNU ld only). The
1550 `--enable-profile', `--enable-omitfp', and `--enable-shared' options to
1551 `configure' enable building these extra libraries. The shared library is
1552 built by default when using both ELF and GNU ld. When shared libraries
1553 are enabled, the new library `-ldl' is available for arbitrary run-time
1554 loading of shared objects; its interface is defined in <dlfcn.h>. The
1555 new header file <link.h> gives access to the internals of the run-time
1556 dynamic linker, `ld.so'. The shell script `ldd' is similar to the
1557 application of same name on other systems and it provides information
1558 about dynamically linked binaries.
1560 * The C library now provides the run-time support code for profiling
1561 executables compiled with `-pg'. Programs can control the profiling code
1562 through the interface in <sys/gmon.h>. The `gmon.out' files written by
1563 the GNU C library can be read only by GNU `gprof' (from GNU binutils);
1564 the support for this file format was contributed by David Mosberger-Tang.
1566 * The math code has been replaced with a math library based on fdlibm from
1567 Sun, and modified by JT Conklin and Ulrich Drepper with i387 support, by
1568 Ian Taylor with `float' functions and by Ulrich Drepper with `long double'
1569 functions. The math functions now reside in a separate library, so
1570 programs using them will need to use `-lm' their linking commands.
1572 * John C. Bowman contributed optimized ix87 assembler inline functions.
1574 * Ulrich Drepper has contributed support for an `/etc/nsswitch.conf'
1575 mechanism similar to that found in Solaris 2. This is now used for the
1576 group, passwd, hosts, networks, services, protocols, rpc, ethers,
1577 shadow, netgroup, publickey, and alias databases. The `nsswitch.conf'
1578 file controls what services are used for each individual database. This
1579 works by loading shared libraries with names specified in `nsswitch.conf',
1580 so service modules can be changed or added at any time without even
1581 relinking any program. Currently there are the file, db, and NIS based
1582 NSS services available.
1584 * The new functions `strtoq' and `strtouq' parse integer values from
1585 strings, like `strtol' and `strtoul', but they return `long long int' and
1586 `unsigned long long int' values, respectively (64-bit quantities).
1588 * The new functions `strtof' and `strtold' parse floating-point values from
1589 strings, like `strtod', but they return `float' and `long double' values,
1590 respectively (on some machines `double' and `long double' are the same).
1592 * Ulrich Drepper has contributed new implementations of the floating-point
1593 printing and reading code used in the `printf' family of functions and
1594 `strtod', `strtof', and `strtold'. These new functions are perfectly
1595 accurate, and much faster than the old ones.
1597 * The implementation of the POSIX locale model was completely rewritten by
1598 Ulrich Drepper. This includes the new programs `localedef' and `locale'
1599 to compile the POSIX locale definition.
1601 * The former dummy implementations of the strcoll and strxfrm function are
1602 now replaced by fully functional code contributed by Ulrich Drepper. The
1603 collation information comes from the POSIX locale definitions.
1605 * The new header <langinfo.h> defines an interface for accessing
1606 various locale-dependent data (using the locale chosen with `setlocale').
1608 * Ulrich Drepper has contributed a new suite of functions for operation on
1609 wide-character and multibyte-character strings, in <wchar.h>;
1610 and classification and case conversion of wide characters, in <wctype.h>.
1611 These new functions are conforming to the ISO C, Amendement 1 specification.
1613 * There is now a second implementation of the standard I/O library available.
1614 It comes from GNU libg++ as was written by Per Bothner, heavily modified
1615 by Hongjiu Lu and made thread safe by Ulrich Drepper.
1617 * You can now use positional parameter specifications in format strings
1618 for the `printf' and `scanf' families of functions. For example,
1619 `printf ("Number %2$d, Mr %1$s\n", "Jones", 6);'' prints
1620 ``Number 6, Mr Jones''. This is mainly useful when providing different
1621 format strings for different languages, whose grammars may dictate
1622 different orderings of the values being printed. To support this
1623 feature, the interface for `register_printf_handler' has changed; see
1624 the header file <printf.h> for details.
1626 * The `printf' and `scanf' families of functions now understand a new
1627 formatting flag for numeric conversions: the ' flag (e.g. %'d or %'f) says
1628 to group numbers as indicated by the locale; for `scanf' and friends, this
1629 says to accept as valid only a number with all the proper grouping
1630 separators in the right places. In the default "C" locale, numbers are
1631 not grouped; but locales for specific countries will define the usual
1632 conventions (i.e. separate thousands with `,' in the US locale).
1634 * The pgrp functions have been regularized, slightly incompatibly but much
1635 less confusingly. The core functions are now `getpgid' and `setpgid',
1636 which take arguments for the PID to operate on; the POSIX.1 `getpgrp' (no
1637 argument) and BSD `setpgrp' (identical to `setpgid') functions are
1638 provided for compatibility. There is no longer an incompatible `getpgrp'
1639 with an argument declared under _BSD_SOURCE; no BSD code uses it.
1641 * The new header file <fts.h> and suite of functions simplify programs that
1642 operate on directory trees. This code comes from 4.4 BSD.
1644 * The resolver code has been updated from the BIND 4.9.5-P1 release.
1645 Parts of the code were heavily modified by Ulrich Drepper to fit in the
1646 NSS scheme used in glibc.
1648 * There is a new malloc debugging hook `__memalign_hook'.
1650 * There are new typedefs `ushort' for `unsigned short int' and `uint' for
1651 `unsigned int' in <sys/types.h>. These are for compatibility only and
1652 their use is discouraged.
1654 * The `-lmcheck' library to enable standard malloc debugging hooks is now
1655 done differently, so that it works even without GNU ld.
1657 * New function `euidaccess' checks allowed access to a file like `access',
1658 but using the effective IDs instead of the real IDs.
1660 * The time zone data files have been updated for the latest and greatest
1661 local time conventions of the countries of the world.
1663 * The new function `dirfd' extracts the file descriptor used by a DIR stream;
1664 see <dirent.h>.
1666 * The new functions `ecvt', `fcvt', and `gcvt' provide an obsolete interface
1667 for formatting floating-point numbers. They are provided only for
1668 compatibility; new programs should use `sprintf' instead. There are
1669 also equivalent function for the `long double' floating-point type and
1670 all functions also exist in a reentrant form.
1672 * The new auxiliary library `-lutil' from 4.4 BSD contains various
1673 functions for maintaining the login-record files (primarily of use to
1674 system programs such as `login'), and convenient functions for
1675 allocating and initializing a pseudo-terminal (pty) device.
1677 * Ulrich Drepper has contributed new support for System V style
1678 shared memory and IPC on systems that support it.
1680 * Ulrich Drepper has contributed several miscellaneous new functions found
1681 in System V: The `hsearch' family of functions provide an effective
1682 implementation of hash tables; `a64l' and `l64a' provide a very simple
1683 binary to ASCII mapping; `drand48' and friends provide a 48-bit random
1684 number generator.
1686 * Ulrich Drepper has contributed new reentrant counterparts for the
1687 `random' and `hsearch' families of functions; `random_r', `hsearch_r', etc.
1689 * Ulrich Drepper has contributed new, highly-optimized versions of several
1690 string functions for the i486/Pentium family of processors.
1692 * Ulrich Drepper has updated the Linux-specific code, based largely
1693 on work done in Hongjiu Lu's version of GNU libc for Linux.
1694 The GNU library now supports Linux versions 2.0.10 and later,
1695 using the ELF object file format (i[3456]86-*-linux).
1697 * Andreas Schwab has ported the C library to Linux/m68k (m68k-*-linux).
1699 * David Mosberger-Tang and Richard Henderson have ported the C library
1700 to Linux/Alpha (alpha-*-linux). Richard Henderson contributed the
1701 dynamic linking support for ELF/Alpha.
1703 * Richard Henderson contributed several Alpha optimized assembler function
1704 for arithmetic and string handling.
1706 * Ulrich Drepper has contributed a new set of message catalog functions to
1707 support multiple languages using the <libintl.h> interface, for use with
1708 his new package GNU gettext. Translation volunteers have contributed
1709 catalogs of the library's messages in Spanish, German, and Korean.
1711 * For compatibility with XPG4, Ulrich Drepper has contributed the `gencat'
1712 program and the `catgets' function for reading the catalog files it
1713 creates. (The <libintl.h> interface is preferred; we include the
1714 <nl_types.h> interface using `catgets' only for source compatibility with
1715 programs already written to use it.)
1717 * New header file <values.h> gives SVID-compatible names for <limits.h>
1718 constants.
1720 * Various new macros, declarations, and small header files for compatibility
1721 with 4.4 BSD.
1723 * New function `group_member' is a convenient way to check if a process has
1724 a given effective group ID.
1726 * When using GCC 2.7 and later, the socket functions are now declared in a
1727 special way so that passing an argument of type `struct sockaddr_in *',
1728 `struct sockaddr_ns *', or `struct sockaddr_un *' instead of the generic
1729 `struct sockaddr *' type, does not generate a type-clash warning.
1731 * New function `error' declared in header file <error.h> is a convenient
1732 function for printing error messages and optionally exiting; this is the
1733 canonical function used in GNU programs. The new functions `err', `warn',
1734 and friends in header file <err.h> are the canonical 4.4 BSD interface for
1735 doing the same thing.
1737 * The <glob.h> interface has several new flags from 4.4 BSD that extend the
1738 POSIX.2 `glob' function to do ~ and {...} expansion.
1740 * New function `unsetenv' complements `setenv' for compatibility with 4.4 BSD.
1741 `clearenv' which is used in POSIX.9 is also available.
1743 * New function `getsid' returns session ID number on systems that support it.
1745 * We have incorporated the 4.4 BSD `db' library (version 1.85). New header
1746 files <db.h> and <mpool.h> provide a rich set of functions for several
1747 types of simple databases stored in memory and in files, and <ndbm.h> is
1748 an old `ndbm'-compatible interface using the `db' functions. Link with
1749 `-ldb' to get these functions.
1751 * New macro `strdupa' copies a string like `strdup', but uses local stack
1752 space from `alloca' instead of dynamic heap space from `malloc'.
1754 * New function `strnlen' is like `strlen' but searches only a given maximum
1755 number of characters for the null terminator. `stpncpy', `strndup' and
1756 `strndupa' are similar variants for the `stpcpy', `strdup' and `strdupa'
1757 function.
1759 * New function `statfs' in header <sys/statfs.h>.
1761 * The new <argz.h> and <envz.h> interfaces contributed by Miles Bader
1762 provide convenient functions for operating on blocks of null-terminated
1763 strings.
1765 * A new suite of functions in <utmp.h> handle all the details of reading
1766 and writing the utmp file.
1768 * An implementation of the NIS/YP(tm) based NSS service was contributed by
1769 Thorsten Kukuk.
1771 * Paul Eggert and Ulrich Drepper modified the `strftime' function to be
1772 completely POSIX compliant and also implemented the extended functionality
1773 to handle alternate digit representation and alternate era date formats.
1775 * Ulrich Drepper provided an implementation of the `strptime' function
1776 defined in XPG4.2 which transforms a string into a `struct tm' value.
1778 * Paul Eggert provided the tzselect shell script as part of the timezone
1779 code. The shell script makes it easy to select the correct timezone
1780 specification.
1782 * The implementation of the malloc family of functions is completely replaced
1783 by a new implementation by Doug Lea with many improvements by Wolfram Gloger.
1784 The implementation uses the mmap function (if available) and it is
1785 optimized for the use in multi threaded programs.
1787 * Ulrich Drepper contributed a MD5 "encryption" for the crypt family of
1788 functions. This new functionality is usable by specifying a special
1789 salt string and it is compatible with implementation on *BSD systems.
1791 * Lots of functions from the XPG4.2 standard were added by Ulrich Drepper:
1792 `getsubopt' to handle second level command line options, `bsd_signal'
1793 to access BSD style `signal' functionality, the obsolete `regexp' style
1794 expression matcher.
1796 * the `lchown' function is available on system which support this
1797 functionality.
1799 * The implementation of the shadow password handling function was contributed
1800 by Ulrich Drepper.
1802 * David Mosberger-Tang changed the SunRPC implementation to be 64bit safe.
1804 * POSIX.1g support was added. The <sys/select.h> header is available,
1805 `isfdtype' and `pselect' are implemented. Craig Metz contributed an
1806 implementation of `getaddrinfo'.
1807 \f
1808 Version 1.09
1810 * For cross-compilation you should now set `BUILD_CC' instead of `HOST_CC'.
1812 * New header file <fstab.h> and new functions `getfsspec', `getfsent' and
1813 friends, for parsing /etc/fstab. This code comes from 4.4 BSD.
1815 * The new function `daemon' from 4.4 BSD is useful for server programs that
1816 want to put themselves in the background.
1818 * Joel Sherrill has contributed support for several standalone boards that
1819 run without an operating system.
1821 * `printf', `scanf' and friends now accept a `q' type modifier for long
1822 long int as well as `ll'. Formats using these might be `%qu' or `%lld'.
1824 * All of the code taken from BSD (notably most of the math and networking
1825 routines) has been updated from the BSD 4.4-Lite release.
1827 * The resolver code has been updated from the BIND-4.9.3-BETA9 release.
1829 * The new functions `getdomainname' and `setdomainname' fetch or change the
1830 YP/NIS domain name. These are system calls which exist on systems which
1831 have YP (aka NIS).
1833 * The time zone data files have been updated for the latest international
1834 conventions.
1836 * The SunRPC programs `portmap' and `rpcinfo' are now installed in
1837 $(sbindir) (usually /usr/local/sbin) instead of $(bindir).
1838 \f
1839 Version 1.08
1841 * The C library now includes support for Sun RPC, from Sun's free
1842 RPCSRC-4.0 distribution. The `portmap', `rpcinfo', and `rpcgen' programs
1843 are included. (There is still no support for YP.)
1845 * Tom Quinn has contributed a port of the C library to SGI machines running
1846 Irix 4 (mips-sgi-irix4).
1848 * The new `lockf' function is a simplified interface to the locking
1849 facilities of `fcntl', included for compatibility.
1851 * New time functions `timegm', `timelocal', and `dysize' for compatibility.
1853 * New header file <sys/timeb.h> and new function `ftime' for compatibility.
1855 * New header files <poll.h> and <sys/poll.h> and new function `poll' for
1856 compatibility.
1858 * The error message printed by `assert' for a failed assertion now includes
1859 the name of the program (if using GNU ld) and the name of the calling
1860 function (with versions of GCC that support this).
1862 * The `psignal' function is now declared in <signal.h>, not <stdio.h>.
1864 * The library now includes the <sys/mman.h> header file and memory
1865 management functions `mmap', `munmap', `mprotect', `msync', and
1866 `madvise', on systems that support those facilities.
1868 * The interface for `mcheck' has changed slightly: the function called to
1869 abort the program when an allocation inconsistency is detected now takes
1870 an argument that indicates the type of failure. The new function
1871 `mprobe' lets you request a consistency check for a particular block at
1872 any time (checks are normally done only when you call `free' or `realloc'
1873 on a block).
1875 * It is now possible to easily cross-compile the C library, building on one
1876 system a library to run on another machine and/or operating system. All
1877 you need to do is set the variable `HOST_CC' in `configparms' to the
1878 native compiler for programs to run on the machine you are building on (a
1879 few generator programs are used on Unix systems); set `CC' to the
1880 cross-compiler.
1882 * The new function `fexecve' (only implemented on the GNU system) executes
1883 a program file given a file descriptor already open on the file.
1884 \f
1885 Version 1.07
1887 * Brendan Kehoe has contributed most of a port to the DEC Alpha
1888 running OSF/1 (alpha-dec-osf1). He says it is 75% complete.
1890 * You can set the variable `libprefix' in `configparms' to specify a prefix
1891 to be prepended to installed library files; this makes it easy to install
1892 the GNU C library to be linked as `-lgnuc' or whatever.
1894 * The new `stpncpy' is a cross between `stpcpy' and `strncpy': It
1895 copies a limited number of characters from a string, and returns the
1896 address of the last character written.
1898 * You no longer need to check for whether the installed `stddef.h' is
1899 compatible with the GNU C library. configure now checks for you.
1901 * You can now define a per-stream `fileno' function to convert the
1902 stream's cookie into an integral file descriptor.
1904 * ``malloc (0)'' no longer returns a null pointer. Instead, it
1905 allocates zero bytes of storage, and returns a unique pointer which
1906 you can pass to `realloc' or `free'. The behavior is undefined if
1907 you dereference this pointer.
1909 * The C library now runs on Sony NEWS m68k machines running either
1910 NewsOS 3 or NewsOS 4.
1912 * The new `syscall' function is a system-dependent primitive function
1913 for invoking system calls. It has the canonical behavior on Unix
1914 systems, including unreliable return values for some calls (such as
1915 `pipe', `fork' and `getppid').
1917 * The error code `EWOULDBLOCK' is now obsolete; it is always defined
1918 to `EAGAIN', which is the preferred name. On systems whose kernels
1919 use two distinct codes, the C library now translates EWOULDBLOCK to
1920 EAGAIN in every system call function.
1921 \f
1922 Version 1.06
1924 * The GNU C Library Reference Manual is now distributed with the library.
1925 `make dvi' will produce a DVI file of the printed manual.
1926 `make info' will produce Info files that you can read on line using C-h i
1927 in Emacs or the `info' program.
1928 Please send comments on the manual to bug-glibc-manual@gnu.org.
1930 * The library now supports SVR4 on i386s (i386-unknown-sysv4).
1932 * Brendan Kehoe has contributed a port to Sun SPARCs running Solaris 2.
1934 * Jason Merrill has contributed a port to the Sequent Symmetry running
1935 Dynix version 3 (i386-sequent-dynix).
1937 * The library has been ported to i386s running SCO 3.2.4 (also known as SCO
1938 ODT 2.0; i386-unknown-sco3.2.4) or SCO 3.2 (i386-unknown-sco3.2).
1940 * New function `memory_warnings' lets you arrange to get warnings when
1941 malloc is running out of memory to allocate, like Emacs gives you.
1943 * The C library now contains the relocating allocator used in Emacs 19 for
1944 its editing buffers. This allocator (ralloc) minimizes allocation
1945 overhead and fragmentation by moving allocated regions around whenever it
1946 needs to. You always refer to a ralloc'd region with a "handle" (a
1947 pointer to a pointer--an object of type `void **').
1949 * There is a new `printf' format: `%m' gives you the string corresponding
1950 to the error code in `errno'.
1952 * In `scanf' formats, you can now use `%as' or `%a[' to do the normal `%s'
1953 or `%[' conversion, but instead of filling in a fixed-sized buffer you
1954 pass, the `a' modifier says to fill in a `char **' you pass with a
1955 malloc'd string.
1957 * The `fnmatch' function supports the new flag bits `FNM_LEADING_DIR' and
1958 `FNM_CASEFOLD'. `FNM_LEADING_DIR' lets a pattern like `foo*' match a
1959 name like `foo/bar'. `FNM_CASEFOLD' says to ignore case in matching.
1961 * `mkstemp' is a traditional Unix function to atomically create and open a
1962 uniquely-named temporary file.
1963 \f
1964 Version 1.05
1966 * The standard location for the file that says what the local timezone is
1967 has changed again. It is now `/usr/local/etc/localtime' (or more
1968 precisely, `${prefix}/etc/localtime') rather than `/etc/localtime'.
1970 * The distribution no longer contains any files with names longer than 14
1971 characters.
1973 * `struct ttyent' has two new flag bits: TTY_TRUSTED and TTY_CONSOLE.
1974 These are set by the new `trusted' and `console' keywords in `/etc/ttys'.
1976 * New functions `ttyslot' and `syslog' from 4.4 BSD.
1977 \f
1978 Version 1.04
1980 * The configuration process has changed quite a bit. The `configure'
1981 script is now used just like the configuration scripts for other GNU
1982 packages. The `sysdeps' directory hierarchy is much rearranged.
1983 The file `INSTALL' explains the new scheme in detail.
1985 * The header files no longer need to be processed into ANSI C and
1986 traditional C versions. There is just one set of files to install, and
1987 it will work with ANSI or old C compilers (including `gcc -traditional').
1989 * Brendan Kehoe and Ian Lance Taylor have ported the library to the
1990 MIPS DECStation running Ultrix 4.
1992 * The Sun 4 startup code (crt0) can now properly load SunOS 4 shared libraries.
1993 Tom Quinn contributed the initial code. The GNU C library can NOT yet be
1994 made itself into a shared library.
1996 * Yet further improved support for the i386, running 4.3 BSD-like systems
1997 (such as Mach 3 with the Unix single-server), or System V.
1999 * New function `strncasecmp' to do case-insensitive string comparison
2000 with limited length.
2002 * New function `strsep' is a reentrant alternative to `strtok'.
2004 * New functions `scandir' and `alphasort' for searching directories.
2006 * New function `setenv' is a better interface to `putenv'.
2008 * Ian Lance Taylor has contributed an implementation of the SVID `ftw'
2009 function for traversing a directory tree.
2011 * The GNU obstack package is now also part of the C library.
2012 The new function `open_obstack_stream' creates a stdio stream that
2013 writes onto an obstack; `obstack_printf' and `obstack_vprintf' do
2014 formatted output directly to an obstack.
2016 * Miscellaneous new functions: reboot, nice, sigaltstack (4.4 BSD only),
2017 cfmakeraw, getusershell, getpass, swab, getttyent, seteuid, setegid.
2019 * `FNM_FILE_NAME' is another name for `FNM_PATHNAME', used with `fnmatch'.
2021 * The new functions `strfry' and `memfrob' do mysterious and wonderful
2022 things to your strings.
2024 * There are some new test programs: test-fseek, testmb, and testrand.
2026 * Some work has been done to begin porting the library to 4.4 BSD and Linux.
2027 These ports are not finished, but are a good starting place for really
2028 supporting those systems.
2030 * `/etc/localtime' is now the standard location for the file that says what
2031 the local timezone is, rather than `/usr/local/lib/zoneinfo/localtime'.
2032 This follows the general principle that `/etc' is the place for all local
2033 configuration files.
2035 * The C library header files now use `extern "C"' when used by the C++
2036 compiler, so the C library should now work with C++ code.
2038 * The header file <bstring.h> is gone. <string.h> now declares bcopy,
2039 bcmp, bzero, and ffs. (Update: nowadays these functions are declared
2040 in <strings.h>.)
2042 * Mike Haertel (of GNU e?grep and malloc fame) has written a new sorting
2043 function which uses the `merge sort' algorithm, and is said to be
2044 significantly faster than the old GNU `qsort' function. Merge sort is
2045 now the standard `qsort' function. The new algorithm can require a lot
2046 of temporary storage; so, the old sorting function is called when the
2047 required storage is not available.
2049 * The C library now includes Michael Glad's Ultra Fast Crypt, which
2050 provides the Unix `crypt' function, plus some other entry points.
2052 * The code and header files taken from 4.4 BSD have been updated with the
2053 latest files released from Berkeley.
2054 \f
2055 ----------------------------------------------------------------------
2056 Copyright information:
2058 Copyright (C) 1992-2009, 2010, 2011 Free Software Foundation, Inc.
2060 Permission is granted to anyone to make or distribute verbatim copies
2061 of this document as received, in any medium, provided that the
2062 copyright notice and this permission notice are preserved,
2063 thus giving the recipient permission to redistribute in turn.
2065 Permission is granted to distribute modified versions
2066 of this document, or of portions of it,
2067 under the above conditions, provided also that they
2068 carry prominent notices stating who last changed them.
2069 \f
2070 Local variables:
2071 version-control: never
2072 fill-column: 76
2073 End: