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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:
12 350, 411, 3335, 4026, 4822, 5805, 6884, 9902, 10140, 10210, 11494, 12047,
13 13525, 13526, 13527, 13528, 13529, 13530, 13531, 13532, 13533, 13547,
14 13551, 13552, 13553, 13555, 13559, 13583, 13618
16 * ISO C11 support:
18 + define static_assert
20 + do not declare gets
22 + declare at_quick_exit and quick_exit also for ISO C11
24 + aligned_alloc. NB: The code is deliberately allows the size parameter
25 to not be a multiple of the alignment. This is a moronic requirement
26 in the standard but it is only a requirement on the caller, not the
27 implementation.
29 + timespec_get added
31 + uchar.h support added
33 + CMPLX, CMPLXF, CMPLXL added
35 Implemented by Ulrich Drepper.
37 * Support for the IA-64 is removed and could live in ports.
39 * Remove support for anything but ELF binary format
41 * Checking versions of poll, ppoll added.
42 Implemented by Ulrich Drepper.
44 * More generic and 64-bit performance optimizations to math functions.
45 Implemented by Ulrich Drepper.
46 \f
47 Version 2.15
49 * The following bugs are resolved with this release:
51 6779, 6783, 9696, 10103, 10709, 11589, 11929, 12403, 12786, 12840, 12847,
52 12868, 12852, 12874, 12885, 12892, 12906, 12907, 12922, 12935, 12962,
53 13007, 13021, 13061, 13062, 13067, 13068, 13085, 13088, 13090, 13092,
54 13096, 13114, 13118, 13123, 13134, 13138, 13147, 13150, 13166, 13179,
55 13185, 13189, 13192, 13268, 13276, 13282, 13291, 13305, 13328, 13335,
56 13337, 13344, 13358, 13367, 13413, 13416, 13423, 13439, 13446, 13472,
57 13484, 13506, 13515, 13523, 13524, 13538, 13540
59 * New program pldd to list loaded object of a process
60 Implemented by Ulrich Drepper.
62 * Add nss_db support back to glibc. No more dependency on Berkeley db
63 and support for initgroups lookups.
64 Implemented by Ulrich Drepper.
66 * Optimized strcpy, strncpy, stpcpy, stpncpy for SSE2 and SSSE3 on x86-32.
67 Contributed by HJ Lu.
69 * Improved strcpy, strncpy, stpcpy, stpncpy for SSE2 and SSSE3 on x86-64.
70 Contributed by HJ Lu.
72 * Optimized strcat, strncat on x86-64 and optimized wcscmp, wcslen, strnlen
73 on x86-32 and x86-64.
74 Contributed by Liubov Dmitrieva.
76 * Optimized strchr and strrchr for SSE on x86-32.
77 Contributed by Liubov Dmitrieva.
79 * Optimized memchr, memrchr, rawmemchr, memcmp, wmemcmp, wcschr, wcscpy
80 for x86-64 and x86-32.
81 Contributed by Liubov Dmitrieva.
83 * New interfaces: scandirat, scandirat64
84 Implemented by Ulrich Drepper.
86 * Checking versions of FD_SET, FD_CLR, and FD_ISSET added.
87 Implemented by Ulrich Drepper.
89 * nscd now also caches the netgroup database.
90 Implemented by Ulrich Drepper.
92 * Integrate libm with gcc's -ffinite-math-only option.
93 Implemented by Ulrich Drepper.
95 * Lots of generic, 64-bit, and x86-64-specific performance optimizations
96 to math functions. Implemented by Ulrich Drepper.
98 * Optimized strcasecmp and strncasecmp for AVX on x86-64.
99 Implemented by Ulrich Drepper.
101 * New Linux interfaces: process_vm_readv, process_vm_writev
103 * Optimized strcasecmp and strncasecmp for SSSE3 and SSE4.2 on x86-32.
104 Implemented by Ulrich Drepper.
106 * Optimized nearbyint and strcasecmp for PPC.
107 Implemented by Adhemerval Zanella.
109 * New locales: bho_IN, unm_US, es_CU, ta_LK
110 \f
111 Version 2.14
113 * The following bugs are resolved with this release:
115 386, 6420, 7101, 9730, 9732, 9809, 10138, 10149, 10157, 11099, 11257,
116 11258, 11487, 11532, 11558, 11578, 11634, 11653, 11668, 11697, 11724,
117 11781, 11799, 11820, 11837, 11857, 11869, 11892, 11895, 11901, 11945,
118 11947, 11952, 11987, 12052, 12083, 12158, 12178, 12200, 12346, 12350,
119 12393, 12420, 12432, 12445, 12449, 12453, 12454, 12460, 12469, 12489,
120 12509, 12510, 12511, 12518, 12527, 12541, 12545, 12551, 12582, 12583,
121 12587, 12597, 12601, 12611, 12625, 12626, 12631, 12650, 12653, 12655,
122 12660, 12671, 12681, 12684, 12685, 12711, 12713, 12714, 12717, 12723,
123 12724, 12734, 12738, 12746, 12766, 12775, 12777, 12782, 12788, 12792,
124 12795, 12811, 12813, 12814, 12841
126 * The RPC implementation in libc is obsoleted. Old programs keep working
127 but new programs cannot be linked with the routines in libc anymore.
128 Programs in need of RPC functionality must be linked against TI-RPC.
129 The TI-RPC implementation is IPv6 enabled and there are other benefits.
131 Visible changes of this change include (obviously) the inability to link
132 programs using RPC functions without referencing the TI-RPC library and the
133 removal of the RPC headers from the glibc headers.
134 Implemented by Ulrich Drepper.
136 * New Linux interfaces: clock_adjtime, name_to_handle_at, open_by_handle_at,
137 syncfs, setns, sendmmsg
139 * New locales: os_RU, bem_ZA, en_ZA, ff_SN, sw_KE, sw_TZ, lb_LU, wae_CH,
140 yue_HK, lij_IT, mhr_RU
142 * New encodings: CP770, CP771, CP772, CP773, CP774
144 * New program sotruss to trace calls through PLTs
145 Implemented by Ulrich Drepper.
147 * The malloc hook implementation is marked deprecated and will be removed
148 from the default implementation in the next version. The design never
149 worked ever since the introduction of threads. Even programs which do
150 not create threads themselves can use multiple threads created internally.
151 \f
152 Version 2.13
154 * The following bugs are resolved with this release:
156 3268, 6812, 7066, 10085, 10484, 10563, 10851, 11149, 11155, 11577, 11611,
157 11640, 11655, 11701, 11840, 11856, 11883, 11903, 11904, 11968, 11979,
158 12005, 12037, 12067, 12077, 12078, 12092, 12093, 12107, 12108, 12113,
159 12140, 12159, 12167, 12191, 12194, 12201, 12204, 12205, 12207, 12348,
160 12378, 12394, 12397
162 * New Linux interfaces: prlimit, prlimit64, fanotify_init, fanotify_mark
164 * POWER7 optimizations: memset, memcmp, strncmp
166 * New optimized string functions for x86-64: strnlen (SSE2),
167 strcasecmp (SSE2, SSSE3, SSE4.2), strncasecmp (SSE2, SSSE3, SSE4.2)
168 Implemented by Ulrich Drepper.
169 \f
170 Version 2.12
172 * The following bugs are resolved with this release:
174 3662, 4457, 5553, 10162, 10401, 10414, 10554, 10824, 10864, 10915, 10918,
175 10936, 10939, 10958, 10968, 10969, 10972, 10992, 11000, 11001, 11007,
176 11010, 11027, 11039, 11040, 11041, 11043, 11046, 11056, 11070, 11093,
177 11115, 11120, 11125, 11126, 11127, 11134, 11141, 11149, 11183, 11184,
178 11185, 11186, 11187, 11188, 11189, 11190, 11191, 11192, 11193, 11194,
179 11200, 11230, 11235, 11242, 11254, 11258, 11271, 11272, 11276, 11279,
180 11287, 11292, 11319, 11332, 11333, 11387, 11389, 11390, 11394, 11397,
181 11410, 11438, 11449, 11470, 11471, 11520, 11537, 11538, 11571
183 * New interfaces: pthread_getname_np, pthread_setname_np
185 * New Linux interface: recvmmsg
187 * STT_GNU_IFUNC implemented for Sparc by David Miller.
189 * The dynamic linker now recognizes supported ABI versions from the
190 EI_ABIVERSION field in the ELF header.
191 Implemented by Ulrich Drepper.
193 * New NIS mode selector ADJUNCT_AS_SHADOW. The passwd.adjunct.byname table
194 will not be used to fill in password fields in the passwd.byname replies.
195 Instead it is used to synthesize the shadow.byname table, should it be
196 missing. This is a useful mode in some installations involving Solaris.
197 Implemented by Ulrich Drepper.
199 * New locales: kok_IN, sq_MK, cv_RU
200 \f
201 Version 2.11
203 * The following bugs are resolved with this release:
205 3270, 7094, 9924, 9986, 10011, 10085, 10107, 10159, 10162, 10166, 10183,
206 10195, 10196, 10200, 10203, 10207, 10211, 10213, 10217, 10221, 10229,
207 10262, 10286, 10312, 10315, 10319, 10349, 10360, 10391, 10402, 10416,
208 10418, 10422, 10425, 10446, 10448, 10452, 10540, 10553, 10560, 10564,
209 10609, 10643, 10692, 10713, 10717, 10730, 10731, 10742, 10780, 10784,
210 10789, 10817, 10823, 10840, 10847
212 * New interfaces: execvpe, pthread_sigqueue, mkstemps, mkstemps64, mkostemps,
213 mkostemps64
214 Implemented by Ulrich Drepper.
216 * Checking version of longjmp added that fails if an uninitialized stack
217 frame would be created. Implemented by Ulrich Drepper.
219 * STT_GNU_IFUNC is now supported in static executables.
220 Implemented by H.J. Lu.
222 * STT_GNU_IFUNC implemented for PPC by Alan Modra.
224 * New optimized string functions for x86-64: strstr, strcasestr, memcmp,
225 strcspn, strpbrk, strspn, strcpy, stpcpy, strncpy, strcmp (SSE2, SSE4.2),
226 strncmp (SSE2, SSE4.2), strchr (SSE4.2), strrchr (SSE4.2).
227 Contributed by H.J. Lu.
229 strlen, rawmemchr, strcmp (SSSE3), strncmp (SSSE3).
230 Implemented by Ulrich Drepper.
232 * New optimized string functions for x86: strlen, strcspn, strspn, strpbrk,
233 strstr, strcasestr.
234 Contributed by H.J. Lu.
236 * Support for fma instruction in AVX on x86-64.
237 Implemented by H.J. Lu and Ulrich Drepper.
239 * AVX support in x86-64 auditing support in ld.so.
240 Implemented by H.J. Lu.
242 * STB_GNU_UNIQUE support added.
243 Implemented by Ulrich Drepper.
245 * Implement second fallback mode for optimized DNS lookup for even more
246 broken environments. If two requests from the same port are not
247 handled correctly close the socket and open a new one before sending
248 the second request. The 'single-request-reopen' option in /etc/resolv.conf
249 can be used to select this mode right away, instead of rediscovering the
250 necessity is every process again.
251 Implemented by Ulrich Drepper.
253 * New resolver flag RES_USE_DNSSEC to enable use of verified lookup.
254 Implemented by Adam Tkac.
256 * Optimized iconv conversions for S390x.
257 Implemented by Andreas Krebbel.
259 * Using condvars with PI mutexes is now more efficient due to kernel
260 support for requeueing to PI futexes. NPTL support added for x86-64.
261 Implemented by Ulrich Drepper.
263 * New locales: ps_AF, my_MM
264 \f
265 Version 2.10
267 * The following bugs are resolved with this release:
269 697, 5381, 5807, 6411, 6545, 7040, 7058, 7067, 7080, 7083, 7095, 7098,
270 9677, 9694, 9697, 9701, 9704, 9705, 9706, 9720, 9726, 9730, 9733, 9736,
271 9741, 9750, 9753, 9759, 9781, 9791, 9793, 9823, 9833, 9844, 9880, 9881,
272 9891, 9893, 9895, 9913, 9916, 9920, 9948, 9955, 9957, 9963, 9985, 10052,
273 10069, 10086, 10087, 10090, 10092, 10093, 10100, 10118, 10128
275 * New interfaces: preadv, preadv64, pwritev, pwritev64, malloc_info
276 Implemented by Ulrich Drepper.
278 * New Linux interfaces: accept4, fallocate, fallocate64.
279 Implemented by Ulrich Drepper.
281 * Correct declarations of string function when used in C++ code. This
282 could lead to compile errors for invalid C++ code.
284 * XPG7/POSIX 2008 compilation environment. Many GNU-specific functions are
285 now in POSIX.
287 * New POSIX 2008 interface: psiginfo
288 Implemented by Ulrich Drepper.
290 * New ISO C++1x interfaces: quick_exit, at_quick_exit
291 Implemented by Ulrich Drepper.
293 * Support for selecting between multiple function definitions at runtime
294 using STT_GNU_IFUNC symbols. Implemented by Ulrich Drepper.
296 * The libcrypt library can now use the hash function implementations in
297 NSS. Implemented by Ulrich Drepper.
299 * The malloc implementation can be compiled to be less memory efficient
300 but higher performing in multi-threaded programs.
301 Implemented by Ulrich Drepper.
303 * New locales: nan_TW@latin, ks_IN
305 * Faster strlen, strchr, strchrnul, strrchr, memchr, and rawmemchr for x86-64.
306 Implemented by Ulrich Drepper.
308 * Extended printf hook support. It is possible to use user-defined types
309 and extend existing format specifiers.
310 Implemented by Ulrich Drepper.
312 * Handling for group shadow files has been added.
313 Implemented by Ulrich Drepper.
315 * DNS IPv4-IPv6 parallel lookup now deals better with broken DNS
316 servers (the case, e.g., for some people using the built-in DNS
317 server in ADSL modems/routers). There is a once-per-process timeout
318 in case of a broken server. To avoid it, users can run nscd or put
319 'options single-request' in /etc/resolv.conf.
320 Implemented by Ulrich Drepper.
321 \f
322 Version 2.9
324 * The following bugs are resolved with this release:
326 3406, 5209, 5210, 5381, 5794, 5814, 5911, 6428, 6438, 6442, 6447, 6461,
327 6472, 6505, 6544, 6589, 6612, 6634, 6653, 6654, 6657, 6698, 6712, 6713,
328 6719, 6723, 6724, 6740, 6763, 6771, 6790, 6791, 6817, 6824, 6839, 6843,
329 6845, 6856, 6857, 6860, 6867, 6875, 6919, 6920, 6942, 6947, 6955, 6966,
330 6968, 6974, 6980, 6995, 7008, 7009, 7029
332 * Unified lookup for getaddrinfo: IPv4 and IPv6 addresses are now looked
333 up at the same time. Implemented by Ulrich Drepper.
335 * TLS descriptors for LD and GD on x86 and x86-64.
336 Implemented by Alexandre Oliva.
338 * getaddrinfo now handles DCCP and UDPlite.
339 Implemented by Ulrich Drepper.
341 * New fixed-size conversion macros: htobe16, htole16, be16toh, le16toh,
342 htobe32, htole32, be32toh, le32toh, htobe64, htole64, be64toh, le64toh.
343 Implemented by Ulrich Drepper.
345 * New implementation of memmem, strstr, and strcasestr which is O(n).
346 Implemented by Eric Blake.
348 * New Linux interfaces: inotify_init1, dup3, epoll_create1, pipe2
350 * Implement "e" option for popen to open file descriptor with the
351 close-on-exec flag set. Implemented by Ulrich Drepper.
353 * Implement "b" mode for fmemopen. In this mode writes writes don't
354 implicitly add a NUL byte and seeks from the end of the buffer really
355 use the buffer end, not the string length as the basis.
356 Implemented by Ulrich Drepper.
358 * Many functions, exported and internal, now atomically set the close-on-exec
359 flag when run on a sufficiently new kernel. Implemented by Ulrich Drepper.
361 * Sorting rules for some Indian languages (Kannada, Gurumukhi, Telugu,
362 Sinhala)
363 Implemented by Pravin Satpute.
365 * New locales: sd_IN, sd_IN@devanagari, ks_IN@devanagari, ht_HT, en_AG, nl_AW.
366 \f
367 Version 2.8
369 * The following bugs are resolved with this release:
371 2549, 3112, 4314, 4407, 4997, 5012, 5040, 5112, 5204, 5208, 5209, 5220,
372 5222, 5224, 5225, 5237, 5238, 5240, 5245, 5277, 5346, 5375, 5378, 5382,
373 5424, 5427, 5428, 5435, 5436, 5439, 5441, 5442, 5443, 5451, 5452, 5454,
374 5455, 5463, 5464, 5465, 5475, 5477, 5478, 5520, 5541, 5545, 5553, 5600,
375 5602, 5607, 5614, 5627, 5628, 5736, 5737, 5741, 5753, 5760, 5762, 5768,
376 5774, 5777, 5778, 5779, 5786, 5790, 5818, 5854, 5857, 5903, 5939, 5979,
377 5983, 5995, 5998, 6004, 6007, 6020, 6021, 6024, 6040, 6042
379 * New locales: bo_CN, bo_IN, shs_CA.
381 * New encoding: HP-ROMAN9, HP-GREEK8, HP-THAI8, HP-TURKISH8.
383 * Sorting rules for some Indian languages (Devanagari and Gujarati).
384 Implemented by Pravin Satpute.
386 * IPV6 addresses in /etc/resolv.conf can now have a scope ID
388 * nscd caches now all timeouts for DNS entries
389 Implemented by Ulrich Drepper.
391 * nscd is more efficient and wakes up less often.
392 Implemented by Ulrich Drepper.
394 * More checking functions: asprintf, dprintf, obstack_printf, vasprintf,
395 vdprintf, and obstack_vprintf.
396 Implemented by Jakub Jelinek.
398 * Faster memset for x86-64.
399 Implemented by Harsha Jagasia and H.J. Lu.
401 * Faster memcpy on x86.
402 Implemented by Ulrich Drepper.
404 * ARG_MAX is not anymore constant on Linux. Use sysconf(_SC_ARG_MAX).
405 Implemented by Ulrich Drepper.
407 * Faster sqrt and sqrtf implemention for some PPC variants.
408 Implemented by Stephen Munroe.
409 \f
410 Version 2.7
412 * The following bugs are resolved with this release:
414 4125, 4126, 4178, 4359, 4407, 4512, 4514, 4525, 4554, 4556, 4557, 4566,
415 4582, 4586, 4588, 4599, 4610, 4647, 4702, 4705, 4726, 4745, 4772, 4773,
416 4775, 4776, 4792, 4813, 4814, 4816, 4833, 4858, 4860, 4896, 4905, 4925,
417 4936, 4937, 4938, 4941, 4946, 4963, 4972, 5010, 5028, 5043, 5058, 5063,
418 5071, 5103, 5104, 5112, 5113, 5184, 5186
420 * More checking functions: fread, fread_unlocked, open*, mq_open.
421 Implemented by Jakub Jelinek and Ulrich Drepper.
423 * Extend fortification to C++. Implemented by Jakub Jelinek.
425 * Implement 'm' modifier for scanf. Add stricter C99/SUS compliance
426 by not recognizing 'a' as a modifier when those specs are requested.
427 Implemented by Jakub Jelinek.
429 * PPC optimizations to math and string functions.
430 Implemented by Steven Munroe.
432 * New interfaces: mkostemp, mkostemp64. Like mkstemp* but allow additional
433 options to be passed. Implemented by Ulrich Drepper.
435 * More CPU set manipulation functions. Implemented by Ulrich Drepper.
437 * New Linux interfaces: signalfd, eventfd, eventfd_read, and eventfd_write.
438 Implemented by Ulrich Drepper.
440 * Handle private futexes in the NPTL implementation.
441 Implemented by Jakub Jelinek and Ulrich Drepper.
443 * Add support for O_CLOEXEC. Implement in Hurd. Use throughout libc.
444 Implemented by Roland McGrath and Ulrich Drepper.
446 * Linux/x86-64 vDSO support. Implemented by Ulrich Drepper.
448 * SHA-256 and SHA-512 based password encryption.
449 Implemented by Ulrich Drepper.
451 * New locales: ber_DZ, ber_MA, en_NG, fil_PH, fur_IT, fy_DE, ha_NG, ig_NG,
452 ik_CA, iu_CA, li_BE, li_NL, nds_DE, nds_NL, pap_AN, sc_IT, tk_TM, ug_CN,
453 yo_NG.
455 + New iconv modules: MAC-CENTRALEUROPE, ISO-8859-9E, KOI8-RU.
456 Implemented by Ulrich Drepper.
457 \f
458 Version 2.6
460 * The following bugs are resolved with this release:
462 3156, 3213, 3285, 3291, 3306, 3313, 3320, 3322, 3325, 3326, 3334, 3348,
463 3352, 3363, 3369, 3426, 3427, 3429, 3451, 3458, 3465, 3480, 3483, 3493,
464 3514, 3515, 3559, 3632, 3664, 3673, 3674, 3745, 3747, 3818, 3840, 3842,
465 3851, 3855, 3884, 3885, 3902, 3905, 3919, 3944, 3954, 3955, 3957, 3991,
466 3995, 3996, 4024, 4040, 4069, 4070, 4074, 4076, 4096, 4101, 4102, 4114,
467 4130, 4131, 4181, 4276, 4306, 4342, 4344, 4349, 4364, 4368, 4381, 4392,
468 4403, 4405, 4406, 4411, 4438, 4439, 4455, 4456, 4465, 4512, 4514, 4586,
469 4702, 4858
471 * New Linux interfaces: epoll_pwait, sched_getcpu.
473 * New generic interfaces: strerror_l.
475 * nscd can now cache the services database. Implemented by Ulrich Drepper.
476 \f
477 Version 2.5
479 * The following bugs are resolved with this release:
481 39, 68, 192, 352, 388, 531, 935, 1006, 1201, 1203, 1386, 1782, 1783, 1784,
482 1785, 1786, 1787, 1951, 1974, 1996, 2072, 2098, 2125, 2134, 2158, 2182,
483 2349, 2376, 2386, 2389, 2415, 2418, 2420, 2423, 2450, 2451, 2466, 2472,
484 2473, 2477, 2498, 2499, 2501, 2502, 2505, 2507, 2508, 2509, 2517, 2526,
485 2569, 2571, 2592, 2611, 2625, 2632, 2644, 2662, 2680, 2683, 2684, 2693,
486 2695, 2703, 2734, 2751, 2764, 2766, 2775, 2792, 2821, 2823, 2832, 2841,
487 2843, 2883, 2892, 2908, 2914, 2926, 2961, 2978, 2980, 2987, 2997, 2998,
488 3013, 3018, 3034, 3040, 3044, 3123, 3124, 3137, 3138, 3143, 3155, 3189,
489 3225, 3251, 3252, 3253, 3273
491 * For Linux, the sorting of addresses returned by getaddrinfo now also
492 handles rules 3, 4, and 7 from RFC 3484. I.e., all rules are handled.
493 Implemented by Ulrich Drepper.
495 * Allow system admin to configure getaddrinfo with the /etc/gai.conf file.
496 Implemented by Ulrich Drepper.
498 * New Linux interfaces: splice, tee, sync_file_range, vmsplice.
500 * New iconv module for MIK. Contributed by Alexander Shopov.
502 * For sites with broken group and/or passwd database, the auto-propagate
503 option of nscd can prevent creating ID lookup entries from the results
504 of a name lookup and vice versa. This usually is no problem but some
505 site might have problems with the default behavior.
506 Implemented by Ulrich Drepper.
508 * Iterating over entire database in NIS can be slow. With the
509 SETENT_BATCH_READ option in /etc/default/nss a system admin can decide
510 to trade time for memory. The entire database will be read at once.
511 Implemented by Ulrich Drepper.
513 * The interfaces introduced in RFC 3542 have been implemented by
514 Ulrich Drepper.
516 * Support for the new ELF hash table format was added by Ulrich Drepper.
518 * Support for priority inheritance mutexes added by Jakub Jelinek and
519 Ulrich Drepper.
521 * Support for priority protected mutexes added by Jakub Jelinek.
523 * New locales: nr_ZA, pa_PK, ca_AD, ca_FR, ca_IT, el_CY, tr_CY, as_IN,
524 or_IN, csb_PL, fy_NL, sr_ME.
525 \f
526 Version 2.4
528 * More overflow detection functions.
530 * New iconv converters for IBM1025, IBM1122, IBM1137, IBM1153,
531 IBM1154, IBM1155, IBM1156, IBM1157, and IBM1158 contributed by Jiro Sekiba.
533 More converters for IBM803, IBM901, IBM902, IBM921, IBM1008, IBM1097,
534 IBM1112, IBM1123, IBM1130, IBM1140, IBM1141, IBM1142, IBM1143, IBM1144,
535 IBM1145, IBM1146, IBM1147, IBM1148, IBM1149, IBM1166, IBM1167, IBM4517,
536 IBM4899, IBM4909, IBM4971, IBM5347, IBM9030, IBM9066, IBM9448, IBM12712,
537 IBM16804, IBM1364, IBM1371, IBM1388, IBM1390, and IBM1399 contributed
538 by Masahide Washizawa.
540 * It is now possible to install audit libraries for the dynamic linker using
541 LD_AUDIT. Implemented by Ulrich Drepper.
543 * The LinuxThreads add-on, providing pthreads on Linux 2.4 kernels, is no
544 longer supported. The new NPTL implementation requires Linux 2.6 kernels.
545 For a libc and libpthread that works well on Linux 2.4 kernels, we
546 recommend using the stable 2.3 branch.
548 * The new function open_wmemstream acts like open_memstream,
549 but uses a wchar_t wide character buffer.
551 * The new function ppoll is an improved version of poll, similar to pselect.
553 * New interfaces: fdopendir, openat, fstatat, fchmodat, fchownat,
554 futimesat, faccessat, mkdirat, mkfifoat, mknodat,
555 renameat, unlinkat, linkat, symlinkat, readlinkat.
557 * New Linux kernel system calls: unshare,
558 inotify_init, inotify_add_watch, inotify_rm_watch.
560 * The euidaccess function is now also known by the alias eaccess,
561 for compatibility with some other systems.
563 * Timezone data updated to 2006b version.
564 \f
565 Version 2.3.6
567 * The following bugs are resolved with this release:
569 38, 253, 549, 622, 653, 721, 758, 851, 877, 915, 934, 955, 961,
570 1016, 1037, 1076, 1079, 1080, 1081, 1082, 1083, 1084, 1085, 1086,
571 1087, 1088, 1090, 1091, 1092, 1093, 1094, 1095, 1096, 1097, 1098,
572 1099, 1100, 1101, 1102, 1103, 1104, 1105, 1106, 1107, 1108, 1109,
573 1110, 1111, 1112, 1113, 1125, 1137, 1138, 1249, 1250, 1251, 1252,
574 1253, 1254, 1350, 1358, 1394, 1438, 1498, 1534
576 Visit <http://sources.redhat.com/bugzilla/> for the details of each bug.
578 * As of this release, GCC 4 can be used to compile the C Library.
580 * Timezone data updated to 2005m version.
581 \f
582 Version 2.3.5
584 * The following bugs are resolved with this release:
586 284, 592, 602, 626, 633, 640, 650, 661, 671, 681, 693, 700, 710, 719,
587 722, 723, 725, 726, 727, 728, 729, 730, 731, 732, 733, 734, 735, 736,
588 737, 738, 739, 740, 741, 742, 743, 744, 745, 765, 767, 768, 769, 776,
589 777, 787, 821, 822, 823, 825
591 Visit <http://sources.redhat.com/bugzilla/> for the details of each bug.
592 \f
593 Version 2.3.4
595 * Support for RFC 3678. Real implementations exist only for Linux so far.
596 Implemented by Ulrich Drepper.
598 * nscd can now cache entries persistently. Expiring entries are reloaded.
599 For speedups the cache can be shared in memory with client processes.
600 Implemented by Ulrich Drepper.
602 * nscd can now perform SELinux checks.
603 Implemented by Matthew Rickard <mjricka@epoch.ncsc.mil>.
605 * getaddrinfo queries are now cached. Canonical name lookup is performed
606 efficiently.
607 Implemented by Ulrich Drepper.
609 * The nothrow function attribute is used when headers are used by gcc when
610 compiling C code. This can avoid significant amounts of exception
611 handling data.
613 * The malloc functions perform more error checking and are stricter when
614 it comes to reacting on errors. The default action is to terminate
615 the process after showing an error message. Implemented by Ulrich Drepper.
617 * Reverse lookups of IPv6 addresses does not use bit string or .ip6.int
618 lookups anymore unless explicitly requested. Implemented by Ulrich Drepper.
620 * Namespaces in ld.so are implemented. DSOs can be loaded in separate
621 namespaces using the new function dlmopen(). This feature is of course,
622 like most other dynamic loading functionality, not available in statically
623 linked applications. Implemented by Ulrich Drepper.
625 * Low-overhead boundary checking variants of string and some stdio functions
626 were added. These are to be used in conjunction with a gcc patch by
627 Jakub Jelinek which adds calls to these functions if possible.
628 Implemented by Jakub Jelinek and Ulrich Drepper.
630 * Old code for several operating systems and machine architectures that
631 have not been in working condition in a long time have been removed from
632 the main source tree maintained by the GNU C Library's maintainers.
633 These files are now reside in the separate `ports' source module
634 that is usable as an add-on when building the library.
635 \f
636 Version 2.3.3
638 * New functions `dladdr1' and `dlinfo' in <dlfcn.h> provide more ways to
639 interrogate the dynamic linker, compatible with the Solaris interface.
641 * ELF thread-local storage support (TLS) now works on PowerPC and PowerPC64;
642 implemented by Paul Mackerras, Steven Munroe, and Roland McGrath.
644 * getifaddrs now uses the netlink interface on Linux to get its information.
645 Implemented by Thorsten Kukuk.
647 * getaddrinfo now implements AI_V4MAPPED, AI_ALL, and AI_ADDRCONF.
648 Implemented by Ulrich Drepper.
650 * support for non-executable stacks on x86 has been added. Changes mostly
651 by Roland McGrath.
653 * regex is now much faster for multibyte locales. Changes by Jakub Jelinek
654 and Ulrich Drepper.
656 * getaddrinfo now performs destination address selection according to
657 RFC 3484.
658 \f
659 Version 2.3.2
661 * Thread-safe interfaces for many functions that access locale data
662 were added in version 2.3, but these features were omitted from NEWS.
663 Many functions have variants with an `_l' suffix that take a `locale_t'
664 object as a parameter rather than consulting the current locale.
665 The new functions `newlocale', `duplocale', and `freelocale' in <locale.h>
666 create and maintain `locale_t' objects. Additionally, the new function
667 `uselocale' sets "the current locale" (as used by functions not so
668 parameterized) set for an individual thread. These features were added
669 in version 2.3, implemented by Ulrich Drepper and Roland McGrath.
671 * The functions getresuid, getresgid, setresuid, and setresgid, which
672 have long been available on Linux, are now declared in <unistd.h>
673 and are now also available on the Hurd.
675 * ELF thread-local storage support (TLS) now works on x86-64.
677 * The new dynamic string token $LIB is expanded in shared library names.
678 This normally expands to lib, but on some 64-bit platforms to lib64 instead.
680 * Aldy Hernandez contributed complete software floating point support for
681 PowerPC machines with no FPU.
683 * fexecve is implemented on Linux.
685 * The `btowc' function should work at least twice as fast due to
686 specialized callbacks in the iconv modules. Implemented by Bruno Haible.
688 * With approriate thread add-ons cancelable functions are now implemented
689 in libc.so as well. No need to call the function in libpthread. This
690 change allowed to finally disable the incorrect and expensive handling
691 of weak definition in ld.so.
693 * Yet more PLT entries in libc.so have been removed. We finally arrived
694 at the bare minimum. Startup times improved appropriately.
696 * Support for the new Linux/x86 system call interface was added. The
697 AT_SYSINFO auxiliary vector entry is recognized and handled.
698 \f
699 Version 2.3
701 * Masahide Washizawa contributed iconv modules for IBM1163 and IBM1164
702 charsets.
704 * iconv (the program and the interface) now accepts empty names (excluding
705 options like //TRANSLIT) to mean "use charset of current locale".
707 * localedef can now transliterate characters in strings which are not in
708 the provided charmap. The information from the input locale is used.
710 * Prelinking support was added for ELF targets. This requires additional
711 tools and recent versions of the GNU binutils. Contributed by Jakub Jelinek.
713 * Read-only stdio streams now use mmap to speed up operation by eliminating
714 copying and buffer underflows. To use add 'm' to the mode string of
715 the fopen/fdopen/freopen call. Implemented by Ulrich Drepper.
717 * The malloc functions were completely rewritten by Wolfram Gloger based
718 on Doug Lea's malloc-2.7.0.c.
720 * Isamu Hasegawa contributed a completely new and POSIX-conformant
721 implementation of regex.
723 * Bruno Haible upgraded the iconv and locale implementation to support
724 Unicode 3.2.
726 * Contents of the LC_* and LANG environment variables in the CEN style are
727 not recognized anymore. It never was used. Change by Ulrich Drepper.
729 * The runtime (ld.so, libc, libpthread for Linux) now can handle the ELF
730 thread-local storage (TLS) ABI on some platforms.
731 Changes by Ulrich Drepper. SH support by Kaz Kojima.
733 * Bruno Haible contributed iconv converters for ISO-2022-JP-3, SHIFT JIS-X0213,
734 EUC-JISX0213, and TSCII.
736 * New header <ifaddrs.h> with functions `getifaddrs' and `freeifaddrs':
737 BSD-compatible interface for getting all network interface addresses.
738 Implementation for IPv4 by Roland McGrath.
740 * Loading of locale data is faster due to the introduction of a locale
741 archive. Implemented by Roland McGrath and Ulrich Drepper.
743 * Startup times are significantly reduced by not using exported functions
744 inside the library itself. Changes by Jakub Jelinek, Roland McGrath,
745 and Ulrich Drepper.
747 * Steven Munroe contributed a port to PowerPC64/Linux.
748 \f
749 Version 2.2.6
751 * The Hurd now uses the GNU libio implementation of stdio rather than the
752 old GNU stdio implementation, and uses a new ABI (libc.so.0.3).
754 * The Hurd on x86 now has the `ioperm' function and <sys/io.h> header file
755 with the same behavior as the Linux system call of the same name.
756 \f
757 Version 2.2.5
759 * Stephen Moshier implemented log2, log10, powl and cbrtl for the
760 128-bit long double format.
762 * Masahide Washizawa contributed iconv modules for IBM1132, IBM1133, IBM1160,
763 IBM1161, and IBM1162 charsets.
765 * Andreas Jaeger contributed a port to x86-64/Linux.
767 * Peter Bruin contributed a port to PowerPC/Hurd.
769 * libc functions using I/O streams now can handle wide-oriented streams
770 as well.
772 * optimizations in the dynamic linker. Binaries created by recent binutils
773 versions start up quicker due to reduced time spent on relocations.
775 * Support for use of gcc3 added by Jakub Jelinek and HJ Lu.
776 \f
777 Version 2.2.4
779 * Stephen Moshier implemented cosh, expm1, log1p, acos, sinh, tanh,
780 asinh, atanh, j0 for the 128-bit long double format.
782 * Bruno Haible updated all the code handling Unicode in some form to
783 support Unicode 3.1.
785 * Speed of regex for single-byte locales is back to previous levels.
786 Patch by Isamu Hasegawa.
788 * Alpha, SPARC, and IA-64 now also using floating stacks.
790 * Startup time of internationalized applications greatly improved through
791 iconv cache. Use iconvconfig to generate the cache file.
792 Contributed by Ulrich Drepper.
794 * The IA-64 specific part of ld.so was rewritten to eliminate some pretty
795 severe performance problems. Patch by David Mosberger.
797 * The Hurd port got a lot more functionality like AIO, various stdio
798 extensions, etc. Mainly done by Roland McGrath.
800 * mtrace can now lookup symbols in shared libraries.
801 \f
802 Version 2.2.3
804 * Intel's IA-64 math library is largely integrated. It provides fast and
805 accurate implementatations for most basic and standard math functions
806 in float, double, and long double format.
808 * Stephen Moshier implemented j0, j1, jn, y0, y1, yn, lgamma, erf, erfc,
809 and asin for the 96-bit long double format and asin, log, tan for the
810 128-bit long double format.
812 * The beginning of a last-bit accurate math library by IBM Haifa were added.
813 The basic double functions exist today. Contributed by Abraham Ziv
814 <ziv@il.ibm.com>, Moshe Olshansky <olshansk@il.ibm.com>, Ealan Henis
815 <ealan@il.ibm.com>, and Anna Reitman <reitman@il.ibm.com>.
817 * An asynchronous name lookup library was added. The interface is designed
818 after POSIX AIO. The proposal was circulated beforehand to get comments.
819 No negative ones came in. Implemented by Ulrich Drepper.
821 * Port to S390/64bit contributed by Martin Schwidefsky
822 <schwidefsky@de.ibm.com>.
824 * David Mosberger <davidm@hpl.hp.com> implemented the setcontext family
825 of functions for Linux/IA-64.
827 * The RPC code is now thread safe. Threads can now use the same service
828 of different services at the same time. Patch by Eric Norum
829 <eric.norum@usask.ca> with some help by Ulrich Drepper.
831 * Martin Schwidefsky <schwidefsky@de.ibm.com> implemented the setcontext
832 family of functions for Linux/S390.
834 * Ulrich Drepper <drepper@redhat.com> implemented the setcontext family
835 of functions for Linux/x86.
837 * Port to Linux/CRIS contributed by Axis Communications.
838 \f
839 Version 2.2.2
841 * Lots of headers were cleaned up. Using the tool in the conform/ subdir
842 we can now check for namespace violations and missing declarations. The
843 result is that almost all headers are now Unix-compliant (as defined in
844 the upcoming XPG6). The negative side is that some programs might need
845 corrections, too, if they depend on the incorrect form of the headers in
846 previous versions which defined too many symbols and included too many
847 other headers.
849 * regex now handles multibyte character sets correctly.
850 Contributed by Isamu Hasegawa <isamu@yamato.ibm.com>.
852 * iconv (the program) does now conform to the upcoming XPG6 and handles
853 charmaps. Instead of the charset names the path of charmaps can be
854 provided and the conversion happens based on this data.
855 Contributed by Ulrich Drepper.
857 * The locale program now provides detailed information about the installed
858 locales. While
860 locale -a
862 only lists the names of the supported locales
864 locale -a --verbose
866 provides details such as country, language, and codeset name.
867 Contributed by Ulrich Drepper.
868 \f
869 Version 2.2.1
871 * The gencat program now parses the input file according to the charset
872 selected by the LC_CTYPE category. This is important for stateful
873 character sets. To make generating catalogs easier there is a way
874 to overwrite the charset selected by the locale: before the first
875 message or $ quote line the catalog can contain a line like
877 $ codeset=ISO-8859-2
879 to select the charset (ISO-8859-2 in this case).
881 Implemented by Shinya Hanataka and Ulrich Drepper.
883 * New codeset conversion modules: IBM-922 (Estonia PC codeset),
884 IBM-1124 (Ukraine PC codeset), IBM-1129 (Vietnamese PC codeset).
885 Contributed by Masahide Washizawa <washi@jp.ibm.com>.
887 * Optimized string functions for Alpha ev6 and ev67 by Richard Henderson
888 <rth@redhat.com> and Rick Gorton <rick.gorton@alpha-processor.com>.
890 * The LANGUAGE environment variable is now ignored unless the locale is
891 changed from the default "C" locale.
893 * The usual bug fixes.
894 \f
895 Version 2.2
897 * Greg McGary added runtime support for bounds checking using gcc's
898 new -fbounded-pointers option. ix86 target is complete. PowerPC
899 is in progress.
901 * Thorsten Kukuk added secure mode support to nscd.
903 * The Berkeley db libraries have been removed.
905 Related, the nss_db module is now in a separate package since it
906 obviously requires a database library being available.
908 * Wide character I/O streams implemented by Ulrich Drepper.
910 * Functions from the extended socket API added by Ulrich Drepper.
912 * Functions feenableexcept and fedisableexcept to control the
913 behaviour of individual exceptions have been added by Andreas Jaeger.
915 * ldconfig program added by Andreas Jaeger and Jakub Jelinek.
917 * The resolver code has been updated from bind 8.2.3-T5B which supports
918 threads. The integration was done by Andreas Jaeger, Adam D. Bradley,
919 and Mark Kettenis.
921 This change could in some situations effect backward compatibility. Since
922 now `_res' is a thread-local instead of a global variable, modifying it
923 in one thread does not have any effect in other threads.
925 The resolver library was also extended to allow IPv6 as the transport
926 protocol for the requests. This work was done by Stig Venaas.
928 * Compatibility code for K&R C compilers has been removed from the
929 header files. A ISO C compiler is needed to use the library
930 (conforming to either C89 or C99 standard).
932 * Complete rewrite of the localedef program to support multibyte character
933 sets. Implement handling of ISO 14651 and ISO 14652. Rewrite strcoll,
934 strxfrm, wcscoll, and wcsxfrm functions. Make isw*() functions work.
935 Implemented by Ulrich Drepper.
937 Bruno Haible significantly improved the generation and use of the data
938 structures for the wide character tables.
940 * Plural handling in gettext implemented by Ulrich Drepper.
942 * The utmp daemon has been removed.
944 * The port to MIPS-Linux has been finished by Andreas Jaeger.
946 * A port to Hitachi SH3 and SH4 has been contributed by Kazumoto Kojima
947 and Yutaka Niibe.
949 * POSIX clocks and timers implemented by Kaz Kylheku and Ulrich Drepper.
951 * POSIX barriers implemented by Kaz Kylheku.
953 * POSIX spawn function family implemented by Ulrich Drepper.
955 * POSIX spinlocks are now available.
957 * Timed wait functions for mutex, rwlock, and semaphores are implemented.
959 * the configure option --enable-kernel=X.Y.Z allows to strip out
960 compatibility for kernel versions before X.Y.Z. This is currently only
961 implemented for Linux.
963 * the sockaddr_in6 structure changed. The IPv6 working group added a new
964 field sin6_scope_id. This means that all programs using IPv6 should be
965 recompiled. Don't expect binary compatibility with previous glibc
966 versions.
968 * various conversion modules for IBM character sets contributed by
969 Masahide Washizawa.
971 * IA-64 port by Jes Sorensen and HJ Lu.
973 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
974 Compiling the GNU C Library for Linux/ia64
975 ******************************************
977 Please refer to the file INSTALL in the same directory as you found
978 this file for general information about configuring and compiling
979 glibc.
981 For general inquiries about glibc under Linux/ia64 please use the
982 following mailing list linux-ia64@linuxia64.org or one of the relevant
983 glibc mailing lists.
985 Recommended Tools for Compilation
986 =================================
988 In order for glibc-2.2 to build correctly on the ia64 you need at
989 least the following versions of the GNU tools (the :
991 * The Cygnus toolchain snapshot for the ia64 as of August 4
992 including the provided set of patches. It is however recommend
993 you use the October 24 toolchain snapshot or a more recent version.
995 OR alternatively you can try the following (the Cygnus toolchain is
996 the recommended solution):
998 * GCC and binutils, GAS and GNU LD out of CVS from
999 sources.redhat.com as of August 28, 2000 or later. The CVS tree
1000 may require special patches to work properly on the ia64.
1002 Configuring and compiling GNU Libc for Linux/ia64
1003 =================================================
1005 The library requires Linux kernel version 2.4.0-test4-000728 or
1006 later to funtion properly. Besides that it support for debug libraries
1007 is currently untested. Hence the following options
1008 are required for configuring the library:
1010 --disable-debug --enable-kernel=2.4.0
1012 It is also important that you make sure the library picks up the
1013 appropriate kernel header files, if you do not have recent enough
1014 kernel headers in /usr/src/linux/include, you should use the
1015 --with-headers=<path> option to specify the location.
1017 As an example I personally use the following options to configure
1018 the library:
1020 --disable-debug
1021 --disable-cvs
1022 --enable-kernel=2.4.0
1023 --host=ia64-linux
1024 --enable-add-ons=yes
1025 --prefix=/usr
1026 --with-headers=/home/jes/linux/include
1029 Good luck
1031 Jes Sorensen <jes@linuxcare.com>,
1032 November 14th, 2000
1033 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1034 \f
1035 Version 2.1.3
1037 * bug fixes
1039 \f
1040 Version 2.1.2
1042 * bug fixes
1044 \f
1045 Version 2.1.1
1047 * New ISO C 9x function _Exit, imaxabs, and imaxdiv are added.
1049 * New xdr functions are added; some rpc functions are now 64bit clean.
1051 * Fixed a number of bugs and memory leaks (especially in NIS+ code).
1053 * Fixed known incompatibilities with glibc 2.0.
1055 * New functions lock64, strchrnul, rawmemchr, getutmp and getutmpx.
1057 * Optimized a number of functions (especially the ELF dynamic loader).
1059 * Update timezone data files.
1061 * lots of charmaps corrections
1063 * some new locale definitions and charmaps
1065 \f
1066 Version 2.1
1068 * Richard Henderson corrected size of struct timeval on Linux/Alpha to
1069 conform to POSIX member type requirements. Symbol versions have been
1070 adjusted as needed within the library, and for direct use by applications,
1071 but there is potential for problems if third-party libraries use
1072 struct timeval as part of their interface. This does not present
1073 a problem for X and other "essential" system libraries.
1075 * An additional locale model to support C++ Standard Library locale
1076 model and probably more was implemented by Ulrich Drepper.
1078 * Eric Youngdale and Ulrich Drepper implemented versioning of objects on
1079 symbol level.
1081 * Miles Bader provided the `argp' function family to support hierachical
1082 command line argument parsing, layered on top of getopt.
1084 * strtod accepts new hexadecimal floating-point format from ISO C 9X.
1086 * printf has two new specifiers %a and %A to print hexadecimal flaoting-point
1087 numbers.
1089 * scanf recognizes the %a and %A format for scanning floating point numbers.
1091 * the new headers <stdint.h> and <inttypes.h> from ISO C 9X provides
1092 information and interfaces for the available integer types.
1094 * about 130 new math functions were added to implement the ISO C9x math
1095 library.
1097 * the new header <complex.h> contains definitions of the complex math
1098 functions from ISO C 9X.
1100 * the new header <tgmath.h> defines generic macros to use complex or
1101 real valued functions.
1103 * Thorsten Kukuk provided an implementation for NIS+, securelevel 0, 1 and 2.
1105 * Andreas Jaeger provided a test suite for the math library.
1107 * Mark Kettenis implemented the utmpx interface and an utmp daemon.
1109 * Ulrich Drepper added character set conversion functions (iconv).
1111 * Optimized string functions have been added.
1113 * The localedata addon is now part of glibc.
1115 * An implementation of profiling shared libraries was added by Ulrich Drepper.
1117 * Thorsten Kukuk and Ulrich Drepper provided an implementation for a caching
1118 daemon for NSS (nscd).
1120 Missing a better place here are some numbers on improvements. Under
1121 Linux 2.1.125 un-tar-ing the kernel sources takes
1123 user system wall
1125 using local files 12.19s 6.88s 22.91s
1127 using NIS 13.92s 8.91s 26.34s
1129 using NIS & nscd 10.37s 7.34s 25.30s
1131 using NIS+ 27.57s 30.37s 640.46s
1133 using NIS+ & nscd 10.25s 7.83s 26.51s
1135 using NIS & old nscd [1] 13.83s 8.32s 29.60s
1137 Keep in mind that non-namelookup related operations dominate above times.
1138 It was just a common complain that using NIS+ unpacking the kernel is
1139 horribly slow.
1141 [1] The old nscd implementation is not available anymore since it was
1142 distributed with glibc up to version 2.0.98 and thus is now replaced.
1144 * Tim Waugh provided an implementation of the POSIX.2 wordexp function family.
1146 * Mark Kettenis provided a Hesiod NSS module.
1148 * The ELF dynamic loader knows how to process dynamic string tokens ($ORIGIN
1149 and $PLATFORM) in RPATHs and similar strings (Ulrich Drepper).
1151 * rcmd can now handle netgroups (Dick Streefland).
1153 * A port to the ARM was contributed by Phil Blundell, Pat Beirne and Scott
1154 Bambrough.
1156 * Support for the IPv6 protocol has been added to the socket API, as per the
1157 latest draft standards.
1159 * Support for Linux 2.2 has been added.
1161 * Interface changes relative to the latest 2.0.x release:
1162 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1163 addseverity NEW: Unix98
1164 alphasort64 NEW: LFS
1165 argp_err_exit_status NEW: argp, GNU ext
1166 argp_error NEW: argp, GNU ext
1167 argp_failure NEW: argp, GNU ext
1168 argp_help NEW: argp, GNU ext
1169 argp_parse NEW: argp, GNU ext
1170 argp_program_bug_address NEW: argp, GNU ext
1171 argp_program_version NEW: argp, GNU ext
1172 argp_program_version_hook NEW: argp, GNU ext
1173 argp_state_help NEW: argp, GNU ext
1174 argp_usage NEW: argp, GNU ext
1175 authdes_create NEW: Secure RPC
1176 authdes_getucred NEW: Secure RPC
1177 authdes_pk_create NEW: Secure RPC
1178 backtrace NEW: GNU ext.
1179 backtrace_symbols NEW: GNU ext.
1180 backtrace_symbols_fd NEW: GNU ext.
1181 cacos NEW: ISO C 9x
1182 cacosf NEW: ISO C 9x
1183 cacosh NEW: ISO C 9x
1184 cacoshf NEW: ISO C 9x
1185 cacoshl NEW: ISO C 9x
1186 cacosl NEW: ISO C 9x
1187 capget NEW: kernel
1188 capset NEW: kernel
1189 carg NEW: ISO C 9x
1190 cargf NEW: ISO C 9x
1191 cargl NEW: ISO C 9x
1192 casin NEW: ISO C 9x
1193 casinf NEW: ISO C 9x
1194 casinh NEW: ISO C 9x
1195 casinhf NEW: ISO C 9x
1196 casinhl NEW: ISO C 9x
1197 casinl NEW: ISO C 9x
1198 catan NEW: ISO C 9x
1199 catanf NEW: ISO C 9x
1200 catanh NEW: ISO C 9x
1201 catanhf NEW: ISO C 9x
1202 catanhl NEW: ISO C 9x
1203 catanl NEW: ISO C 9x
1204 cbc_crypt NEW: Secure RPC
1205 ccos NEW: ISO C 9x
1206 ccosf NEW: ISO C 9x
1207 ccosh NEW: ISO C 9x
1208 ccoshf NEW: ISO C 9x
1209 ccoshl NEW: ISO C 9x
1210 ccosl NEW: ISO C 9x
1211 cexp NEW: ISO C 9x
1212 cexpf NEW: ISO C 9x
1213 cexpl NEW: ISO C 9x
1214 cimag NEW: ISO C 9x
1215 cimagf NEW: ISO C 9x
1216 cimagl NEW: ISO C 9x
1217 clearerr_locked REMOVED
1218 clntunix_create NEW: sunrpc ext
1219 clog NEW: ISO C 9x
1220 clog10 NEW: ISO C 9x
1221 clog10f NEW: ISO C 9x
1222 clog10l NEW: ISO C 9x
1223 clogf NEW: ISO C 9x
1224 clogl NEW: ISO C 9x
1225 conj NEW: ISO C 9x
1226 conjf NEW: ISO C 9x
1227 conjl NEW: ISO C 9x
1228 cpow NEW: ISO C 9x
1229 cpowf NEW: ISO C 9x
1230 cpowl NEW: ISO C 9x
1231 cproj NEW: ISO C 9x
1232 cprojf NEW: ISO C 9x
1233 cprojl NEW: ISO C 9x
1234 creal NEW: ISO C 9x
1235 crealf NEW: ISO C 9x
1236 creall NEW: ISO C 9x
1237 creat64 NEW: LFS
1238 csin NEW: ISO C 9x
1239 csinf NEW: ISO C 9x
1240 csinh NEW: ISO C 9x
1241 csinhf NEW: ISO C 9x
1242 csinhl NEW: ISO C 9x
1243 csinl NEW: ISO C 9x
1244 csqrt NEW: ISO C 9x
1245 csqrtf NEW: ISO C 9x
1246 csqrtl NEW: ISO C 9x
1247 ctan NEW: ISO C 9x
1248 ctanf NEW: ISO C 9x
1249 ctanh NEW: ISO C 9x
1250 ctanhf NEW: ISO C 9x
1251 ctanhl NEW: ISO C 9x
1252 ctanl NEW: ISO C 9x
1253 des_setparity NEW: Secure RPC
1254 ecb_crypt NEW: Secure RPC
1255 endutxent NEW: Unix98
1256 exp10 NEW: ISO C 9x
1257 exp10f NEW: ISO C 9x
1258 exp10l NEW: ISO C 9x
1259 exp2 NEW: ISO C 9x
1260 exp2f NEW: ISO C 9x
1261 exp2l NEW: ISO C 9x
1262 fattach NEW: STREAMS
1263 fdetach NEW: STREAMS
1264 fdim NEW: ISO C 9x
1265 fdimf NEW: ISO C 9x
1266 fdiml NEW: ISO C 9x
1267 feclearexcept NEW: ISO C 9x
1268 fegetenv NEW: ISO C 9x
1269 fegetexceptflag NEW: ISO C 9x
1270 fegetround NEW: ISO C 9x
1271 feholdexcept NEW: ISO C 9x
1272 feof_locked REMOVED
1273 feraiseexcept NEW: ISO C 9x
1274 ferror_locked REMOVED
1275 fesetenv NEW: ISO C 9x
1276 fesetexceptflag NEW: ISO C 9x
1277 fesetround NEW: ISO C 9x
1278 fetestexcept NEW: ISO C 9x
1279 feupdateenv NEW: ISO C 9x
1280 fflush_locked REMOVED
1281 ffsl NEW: GNU ext.
1282 ffsll NEW: GNU ext.
1283 fgetpos64 NEW: LFS
1284 fgets_unlocked NEW: GNU ext.
1285 fileno_locked REMOVED
1286 fma NEW: ISO C 9x
1287 fmaf NEW: ISO C 9x
1288 fmal NEW: ISO C 9x
1289 fmax NEW: ISO C 9x
1290 fmaxf NEW: ISO C 9x
1291 fmaxl NEW: ISO C 9x
1292 fmin NEW: ISO C 9x
1293 fminf NEW: ISO C 9x
1294 fminl NEW: ISO C 9x
1295 fmtmsg NEW: Unix98
1296 fopen64 NEW: LFS
1297 fputc_locked REMOVED
1298 fputs_unlocked NEW: GNU ext.
1299 fread_unlocked NEW: GNU ext.
1300 freopen64 NEW: LFS
1301 fseeko NEW: Unix98
1302 fsetpos64 NEW: LFS
1303 fstatfs64 NEW: LFS
1304 fstatvfs NEW: Unix98
1305 fstatvfs64 NEW: LFS
1306 ftello NEW: Unix98
1307 ftello64 NEW: LFS
1308 ftruncate64 NEW: LFS
1309 ftw64 NEW: LFS
1310 fwrite_unlocked NEW: GNU ext.
1311 gai_strerror NEW: IPv6
1312 gamma_r REMOVED
1313 gammaf_r REMOVED
1314 gammal_r REMOVED
1315 getchar_locked REMOVED
1316 getdate NEW: Unix98
1317 getdate_err NEW: Unix98
1318 getdate_r NEW: GNU ext.
1319 getmsg NEW: STREAMS
1320 getnameinfo NEW: IPv6
1321 getnetname NEW: Secure RPC
1322 getpmsg NEW: STREAMS
1323 getpt NEW: Unix98 PTY
1324 getrlimit64 NEW: LFS
1325 getutxent NEW: Unix98
1326 getutxid NEW: Unix98
1327 getutxline NEW: Unix98
1328 glob64 NEW: GNU ext.
1329 globfree64 NEW: GNU ext.
1330 gnu_get_libc_release NEW: GNU ext.
1331 gnu_get_libc_version NEW: GNU ext.
1332 grantpt NEW: Unix98 PTY
1333 host2netname NEW: Secure RPC
1334 iconv NEW: iconv
1335 iconv_close NEW: iconv
1336 iconv_open NEW: iconv
1337 if_freenameindex NEW: IPv6
1338 if_indextoname NEW: IPv6
1339 if_nameindex NEW: IPv6
1340 if_nametoindex NEW: IPv6
1341 in6addr_any NEW: IPv6
1342 in6addr_loopback NEW: IPv6
1343 inet6_isipv4mapped NEW: IPv6
1344 isastream NEW: STREAMS
1345 iswblank NEW: GNU ext.
1346 key_decryptsession NEW: Secure RPC
1347 key_decryptsession_pk NEW: Secure RPC
1348 key_encryptsession NEW: Secure RPC
1349 key_encryptsession_pk NEW: Secure RPC
1350 key_gendes NEW: Secure RPC
1351 key_get_conv NEW: Secure RPC
1352 key_secretkey_is_set NEW: Secure RPC
1353 key_setnet NEW: Secure RPC
1354 key_setsecret NEW: Secure RPC
1355 llrint NEW: ISO C 9x
1356 llrintf NEW: ISO C 9x
1357 llrintl NEW: ISO C 9x
1358 llround NEW: ISO C 9x
1359 llroundf NEW: ISO C 9x
1360 llroundl NEW: ISO C 9x
1361 log2 NEW: ISO C 9x
1362 log2f NEW: ISO C 9x
1363 log2l NEW: ISO C 9x
1364 lrint NEW: ISO C 9x
1365 lrintf NEW: ISO C 9x
1366 lrintl NEW: ISO C 9x
1367 lround NEW: ISO C 9x
1368 lroundf NEW: ISO C 9x
1369 lroundl NEW: ISO C 9x
1370 lseek64 NEW: LFS
1371 makecontext NEW: Unix98
1372 mempcpy NEW: GNU ext.
1373 mmap64 NEW: LFS
1374 moncontrol REMOVED
1375 modify_ldt NEW: kernel
1376 nan NEW: ISO C 9x
1377 nanf NEW: ISO C 9x
1378 nanl NEW: ISO C 9x
1379 nearbyint NEW: ISO C 9x
1380 nearbyintf NEW: ISO C 9x
1381 nearbyintl NEW: ISO C 9x
1382 netname2host NEW: Secure RPC
1383 netname2user NEW: Secure RPC
1384 nexttoward NEW: ISO C 9x
1385 nexttowardf NEW: ISO C 9x
1386 nexttowardl NEW: ISO C 9x
1387 nftw NEW: Unix98
1388 nftw64 NEW: LFS
1389 open64 NEW: LFS
1390 passwd2des NEW: Secure RPC
1391 pow10 NEW: GNU ext.
1392 pow10f NEW: GNU ext.
1393 pow10l NEW: GNU ext.
1394 pread NEW: Unix98
1395 pread64 NEW: LFS
1396 printf_size NEW: GNU ext.
1397 printf_size_info NEW: GNU ext.
1398 profil_counter REMOVED
1399 pthread_mutexattr_getkind_np REPLACED
1400 pthread_mutexattr_setkind_np REPLACED
1401 ptsname NEW: Unix98 PTY
1402 ptsname_r NEW: Unix98 PTY
1403 putc_locked REMOVED
1404 putchar_locked REMOVED
1405 putgrent NEW: GNU ext.
1406 putmsg NEW: STREAMS
1407 putpmsg NEW: STREAMS
1408 pututxline NEW: Unix98
1409 pwrite NEW: Unix98
1410 pwrite64 NEW: LFS
1411 readdir64 NEW: LFS
1412 readdir64_r NEW: LFS
1413 remquo NEW: ISO C 9x
1414 remquof NEW: ISO C 9x
1415 remquol NEW: ISO C 9x
1416 round NEW: ISO C 9x
1417 roundf NEW: ISO C 9x
1418 roundl NEW: ISO C 9x
1419 rtime NEW: GNU ext.
1420 scalbln NEW: ISO C 9x
1421 scalblnf NEW: ISO C 9x
1422 scalblnl NEW: ISO C 9x
1423 scandir64 NEW: LFS
1424 sendfile NEW: kernel
1425 setcontext NEW: Unix98
1426 setrlimit64 NEW: LFS
1427 setutxent NEW: Unix98
1428 sighold NEW: Unix98
1429 sigignore NEW: Unix98
1430 sigqueue NEW: POSIX.1b
1431 sigrelse NEW: Unix98
1432 sigset NEW: POSIX.1b
1433 sigtimedwait NEW: POSIX.1b
1434 sigwaitinfo NEW: POSIX.1b
1435 sincos NEW: GNU ext.
1436 sincosf NEW: GNU ext.
1437 sincosl NEW: GNU ext.
1438 statfs64 NEW: LFS
1439 statvfs NEW: Unix98
1440 statvfs64 NEW: LFS
1441 strcasestr NEW: GNU ext.
1442 strtoimax NEW: ISO C 9x
1443 strtoumax NEW: ISO C 9x
1444 strverscmp NEW: GNU ext.
1445 svcauthdes_stats NEW: Secure RPC
1446 svcunix_create NEW: sunrpc etx
1447 svcunixfd_create NEW: sunrpc ext
1448 swapcontext NEW: Unix98
1449 tcgetsid NEW: Unix98 PTY
1450 tdestroy NEW: GNU ext.
1451 tgamma NEW: ISO C 9x
1452 tgammaf NEW: ISO C 9x
1453 tgammal NEW: ISO C 9x
1454 tmpfile64 NEW: LFS
1455 trunc NEW: ISO C 9x
1456 truncate64 NEW: LFS
1457 truncf NEW: ISO C 9x
1458 truncl NEW: ISO C 9x
1459 umount2 NEW: kernel
1460 unlockpt NEW: Unix98 PTY
1461 updwtmpx NEW: Unix98
1462 user2netname NEW: Secure RPC
1463 utmpxname NEW: Unix98
1464 versionsort NEW: GNU ext.
1465 versionsort64 NEW: GNU ext.
1466 waitid NEW: Unix98
1467 wcscasecmp NEW: GNU ext.
1468 wcsncasecmp NEW: GNU ext.
1469 wcsnlen NEW: GNU ext.
1470 wcstoimax NEW: ISO C 9x
1471 wcstoll NEW: ISO C 9x
1472 wcstoull NEW: ISO C 9x
1473 wcstoumax NEW: ISO C 9x
1474 wcswcs NEW: Unix98
1475 wordexp NEW: POSIX.2
1476 wordfree NEW: POSIX.2
1477 write_profiling REMOVED
1478 xdecrypt NEW: Secure RPC
1479 xdr_authdes_cred NEW: Secure RPC
1480 xdr_authdes_verf NEW: Secure RPC
1481 xdr_cryptkeyarg NEW: Secure RPC
1482 xdr_cryptkeyarg2 NEW: Secure RPC
1483 xdr_cryptkeyres NEW: Secure RPC
1484 xdr_getcredres NEW: Secure RPC
1485 xdr_key_netstarg NEW: Secure RPC
1486 xdr_key_netstres NEW: Secure RPC
1487 xdr_keybuf NEW: Secure RPC
1488 xdr_keystatus NEW: Secure RPC
1489 xdr_netnamestr NEW: Secure RPC
1490 xdr_sizeof NEW: Secure RPC
1491 xdr_unixcred NEW: sunrpc ext
1492 xencrypt NEW: Secure RPC
1493 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1494 \f
1495 Version 2.0.6
1497 * more bug fixes
1499 \f
1500 Version 2.0.5
1502 * more bug fixes
1504 * inet_ntoa is thread-safe
1506 * updwtmp is moved from libutil to libc
1508 * rewrite of cbrt function
1510 * update of timezone data
1511 \f
1512 Version 2.0.4
1514 * more bug fixes
1515 \f
1516 Version 2.0.3
1518 * more bug fixes
1519 \f
1520 Version 2.0.2
1522 * more bug fixes
1524 * add atoll function
1526 * fix complex problems in Berkeley DB code
1528 * fix math functions
1529 \f
1530 Version 2.0.1
1532 * fixed lots of header problems (especially Linux/GNU specific)
1534 * dynamic loader preserves all registers
1536 * Roland McGrath provided support for handling of auxiliary objects in
1537 the ELF dynamic loader.
1539 * support for parallel builds is improved
1540 \f
1541 Version 2.0
1543 * GNU extensions are no longer declared by default. To enable them you
1544 must define the macro `_GNU_SOURCE' in your program or compile with
1545 `-D_GNU_SOURCE'.
1547 * The library has changed from using GNU ld symbol aliases to using weak
1548 symbols where available. The ELF object file format supports weak
1549 symbols; GNU ld also supports weak symbols in the a.out format. (There
1550 is also now support for other GNU ld extensions in ELF. Use the
1551 `--with-elf' option to configure to indicate you have ELF, and
1552 `--with-gnu-ld' if using GNU ld.) This change resulted in the deletion
1553 of many files which contained only symbol aliases, reducing the size of
1554 the source and the compiled library; many other files were renamed to
1555 less cryptic names previously occupied by the symbol alias files.
1556 There is a new header file <elf.h> for programs which operate on
1557 files in the ELF format.
1559 * Converted to Autoconf version 2, so `configure' has more options.
1560 Run `configure --help' to see the details.
1562 * The library can now be configured to build profiling, highly-optimized
1563 (but undebuggable), and/or shared libraries (ELF with GNU ld only). The
1564 `--enable-profile', `--enable-omitfp', and `--enable-shared' options to
1565 `configure' enable building these extra libraries. The shared library is
1566 built by default when using both ELF and GNU ld. When shared libraries
1567 are enabled, the new library `-ldl' is available for arbitrary run-time
1568 loading of shared objects; its interface is defined in <dlfcn.h>. The
1569 new header file <link.h> gives access to the internals of the run-time
1570 dynamic linker, `ld.so'. The shell script `ldd' is similar to the
1571 application of same name on other systems and it provides information
1572 about dynamically linked binaries.
1574 * The C library now provides the run-time support code for profiling
1575 executables compiled with `-pg'. Programs can control the profiling code
1576 through the interface in <sys/gmon.h>. The `gmon.out' files written by
1577 the GNU C library can be read only by GNU `gprof' (from GNU binutils);
1578 the support for this file format was contributed by David Mosberger-Tang.
1580 * The math code has been replaced with a math library based on fdlibm from
1581 Sun, and modified by JT Conklin and Ulrich Drepper with i387 support, by
1582 Ian Taylor with `float' functions and by Ulrich Drepper with `long double'
1583 functions. The math functions now reside in a separate library, so
1584 programs using them will need to use `-lm' their linking commands.
1586 * John C. Bowman contributed optimized ix87 assembler inline functions.
1588 * Ulrich Drepper has contributed support for an `/etc/nsswitch.conf'
1589 mechanism similar to that found in Solaris 2. This is now used for the
1590 group, passwd, hosts, networks, services, protocols, rpc, ethers,
1591 shadow, netgroup, publickey, and alias databases. The `nsswitch.conf'
1592 file controls what services are used for each individual database. This
1593 works by loading shared libraries with names specified in `nsswitch.conf',
1594 so service modules can be changed or added at any time without even
1595 relinking any program. Currently there are the file, db, and NIS based
1596 NSS services available.
1598 * The new functions `strtoq' and `strtouq' parse integer values from
1599 strings, like `strtol' and `strtoul', but they return `long long int' and
1600 `unsigned long long int' values, respectively (64-bit quantities).
1602 * The new functions `strtof' and `strtold' parse floating-point values from
1603 strings, like `strtod', but they return `float' and `long double' values,
1604 respectively (on some machines `double' and `long double' are the same).
1606 * Ulrich Drepper has contributed new implementations of the floating-point
1607 printing and reading code used in the `printf' family of functions and
1608 `strtod', `strtof', and `strtold'. These new functions are perfectly
1609 accurate, and much faster than the old ones.
1611 * The implementation of the POSIX locale model was completely rewritten by
1612 Ulrich Drepper. This includes the new programs `localedef' and `locale'
1613 to compile the POSIX locale definition.
1615 * The former dummy implementations of the strcoll and strxfrm function are
1616 now replaced by fully functional code contributed by Ulrich Drepper. The
1617 collation information comes from the POSIX locale definitions.
1619 * The new header <langinfo.h> defines an interface for accessing
1620 various locale-dependent data (using the locale chosen with `setlocale').
1622 * Ulrich Drepper has contributed a new suite of functions for operation on
1623 wide-character and multibyte-character strings, in <wchar.h>;
1624 and classification and case conversion of wide characters, in <wctype.h>.
1625 These new functions are conforming to the ISO C, Amendement 1 specification.
1627 * There is now a second implementation of the standard I/O library available.
1628 It comes from GNU libg++ as was written by Per Bothner, heavily modified
1629 by Hongjiu Lu and made thread safe by Ulrich Drepper.
1631 * You can now use positional parameter specifications in format strings
1632 for the `printf' and `scanf' families of functions. For example,
1633 `printf ("Number %2$d, Mr %1$s\n", "Jones", 6);'' prints
1634 ``Number 6, Mr Jones''. This is mainly useful when providing different
1635 format strings for different languages, whose grammars may dictate
1636 different orderings of the values being printed. To support this
1637 feature, the interface for `register_printf_handler' has changed; see
1638 the header file <printf.h> for details.
1640 * The `printf' and `scanf' families of functions now understand a new
1641 formatting flag for numeric conversions: the ' flag (e.g. %'d or %'f) says
1642 to group numbers as indicated by the locale; for `scanf' and friends, this
1643 says to accept as valid only a number with all the proper grouping
1644 separators in the right places. In the default "C" locale, numbers are
1645 not grouped; but locales for specific countries will define the usual
1646 conventions (i.e. separate thousands with `,' in the US locale).
1648 * The pgrp functions have been regularized, slightly incompatibly but much
1649 less confusingly. The core functions are now `getpgid' and `setpgid',
1650 which take arguments for the PID to operate on; the POSIX.1 `getpgrp' (no
1651 argument) and BSD `setpgrp' (identical to `setpgid') functions are
1652 provided for compatibility. There is no longer an incompatible `getpgrp'
1653 with an argument declared under _BSD_SOURCE; no BSD code uses it.
1655 * The new header file <fts.h> and suite of functions simplify programs that
1656 operate on directory trees. This code comes from 4.4 BSD.
1658 * The resolver code has been updated from the BIND 4.9.5-P1 release.
1659 Parts of the code were heavily modified by Ulrich Drepper to fit in the
1660 NSS scheme used in glibc.
1662 * There is a new malloc debugging hook `__memalign_hook'.
1664 * There are new typedefs `ushort' for `unsigned short int' and `uint' for
1665 `unsigned int' in <sys/types.h>. These are for compatibility only and
1666 their use is discouraged.
1668 * The `-lmcheck' library to enable standard malloc debugging hooks is now
1669 done differently, so that it works even without GNU ld.
1671 * New function `euidaccess' checks allowed access to a file like `access',
1672 but using the effective IDs instead of the real IDs.
1674 * The time zone data files have been updated for the latest and greatest
1675 local time conventions of the countries of the world.
1677 * The new function `dirfd' extracts the file descriptor used by a DIR stream;
1678 see <dirent.h>.
1680 * The new functions `ecvt', `fcvt', and `gcvt' provide an obsolete interface
1681 for formatting floating-point numbers. They are provided only for
1682 compatibility; new programs should use `sprintf' instead. There are
1683 also equivalent function for the `long double' floating-point type and
1684 all functions also exist in a reentrant form.
1686 * The new auxiliary library `-lutil' from 4.4 BSD contains various
1687 functions for maintaining the login-record files (primarily of use to
1688 system programs such as `login'), and convenient functions for
1689 allocating and initializing a pseudo-terminal (pty) device.
1691 * Ulrich Drepper has contributed new support for System V style
1692 shared memory and IPC on systems that support it.
1694 * Ulrich Drepper has contributed several miscellaneous new functions found
1695 in System V: The `hsearch' family of functions provide an effective
1696 implementation of hash tables; `a64l' and `l64a' provide a very simple
1697 binary to ASCII mapping; `drand48' and friends provide a 48-bit random
1698 number generator.
1700 * Ulrich Drepper has contributed new reentrant counterparts for the
1701 `random' and `hsearch' families of functions; `random_r', `hsearch_r', etc.
1703 * Ulrich Drepper has contributed new, highly-optimized versions of several
1704 string functions for the i486/Pentium family of processors.
1706 * Ulrich Drepper has updated the Linux-specific code, based largely
1707 on work done in Hongjiu Lu's version of GNU libc for Linux.
1708 The GNU library now supports Linux versions 2.0.10 and later,
1709 using the ELF object file format (i[3456]86-*-linux).
1711 * Andreas Schwab has ported the C library to Linux/m68k (m68k-*-linux).
1713 * David Mosberger-Tang and Richard Henderson have ported the C library
1714 to Linux/Alpha (alpha-*-linux). Richard Henderson contributed the
1715 dynamic linking support for ELF/Alpha.
1717 * Richard Henderson contributed several Alpha optimized assembler function
1718 for arithmetic and string handling.
1720 * Ulrich Drepper has contributed a new set of message catalog functions to
1721 support multiple languages using the <libintl.h> interface, for use with
1722 his new package GNU gettext. Translation volunteers have contributed
1723 catalogs of the library's messages in Spanish, German, and Korean.
1725 * For compatibility with XPG4, Ulrich Drepper has contributed the `gencat'
1726 program and the `catgets' function for reading the catalog files it
1727 creates. (The <libintl.h> interface is preferred; we include the
1728 <nl_types.h> interface using `catgets' only for source compatibility with
1729 programs already written to use it.)
1731 * New header file <values.h> gives SVID-compatible names for <limits.h>
1732 constants.
1734 * Various new macros, declarations, and small header files for compatibility
1735 with 4.4 BSD.
1737 * New function `group_member' is a convenient way to check if a process has
1738 a given effective group ID.
1740 * When using GCC 2.7 and later, the socket functions are now declared in a
1741 special way so that passing an argument of type `struct sockaddr_in *',
1742 `struct sockaddr_ns *', or `struct sockaddr_un *' instead of the generic
1743 `struct sockaddr *' type, does not generate a type-clash warning.
1745 * New function `error' declared in header file <error.h> is a convenient
1746 function for printing error messages and optionally exiting; this is the
1747 canonical function used in GNU programs. The new functions `err', `warn',
1748 and friends in header file <err.h> are the canonical 4.4 BSD interface for
1749 doing the same thing.
1751 * The <glob.h> interface has several new flags from 4.4 BSD that extend the
1752 POSIX.2 `glob' function to do ~ and {...} expansion.
1754 * New function `unsetenv' complements `setenv' for compatibility with 4.4 BSD.
1755 `clearenv' which is used in POSIX.9 is also available.
1757 * New function `getsid' returns session ID number on systems that support it.
1759 * We have incorporated the 4.4 BSD `db' library (version 1.85). New header
1760 files <db.h> and <mpool.h> provide a rich set of functions for several
1761 types of simple databases stored in memory and in files, and <ndbm.h> is
1762 an old `ndbm'-compatible interface using the `db' functions. Link with
1763 `-ldb' to get these functions.
1765 * New macro `strdupa' copies a string like `strdup', but uses local stack
1766 space from `alloca' instead of dynamic heap space from `malloc'.
1768 * New function `strnlen' is like `strlen' but searches only a given maximum
1769 number of characters for the null terminator. `stpncpy', `strndup' and
1770 `strndupa' are similar variants for the `stpcpy', `strdup' and `strdupa'
1771 function.
1773 * New function `statfs' in header <sys/statfs.h>.
1775 * The new <argz.h> and <envz.h> interfaces contributed by Miles Bader
1776 provide convenient functions for operating on blocks of null-terminated
1777 strings.
1779 * A new suite of functions in <utmp.h> handle all the details of reading
1780 and writing the utmp file.
1782 * An implementation of the NIS/YP(tm) based NSS service was contributed by
1783 Thorsten Kukuk.
1785 * Paul Eggert and Ulrich Drepper modified the `strftime' function to be
1786 completely POSIX compliant and also implemented the extended functionality
1787 to handle alternate digit representation and alternate era date formats.
1789 * Ulrich Drepper provided an implementation of the `strptime' function
1790 defined in XPG4.2 which transforms a string into a `struct tm' value.
1792 * Paul Eggert provided the tzselect shell script as part of the timezone
1793 code. The shell script makes it easy to select the correct timezone
1794 specification.
1796 * The implementation of the malloc family of functions is completely replaced
1797 by a new implementation by Doug Lea with many improvements by Wolfram Gloger.
1798 The implementation uses the mmap function (if available) and it is
1799 optimized for the use in multi threaded programs.
1801 * Ulrich Drepper contributed a MD5 "encryption" for the crypt family of
1802 functions. This new functionality is usable by specifying a special
1803 salt string and it is compatible with implementation on *BSD systems.
1805 * Lots of functions from the XPG4.2 standard were added by Ulrich Drepper:
1806 `getsubopt' to handle second level command line options, `bsd_signal'
1807 to access BSD style `signal' functionality, the obsolete `regexp' style
1808 expression matcher.
1810 * the `lchown' function is available on system which support this
1811 functionality.
1813 * The implementation of the shadow password handling function was contributed
1814 by Ulrich Drepper.
1816 * David Mosberger-Tang changed the SunRPC implementation to be 64bit safe.
1818 * POSIX.1g support was added. The <sys/select.h> header is available,
1819 `isfdtype' and `pselect' are implemented. Craig Metz contributed an
1820 implementation of `getaddrinfo'.
1821 \f
1822 Version 1.09
1824 * For cross-compilation you should now set `BUILD_CC' instead of `HOST_CC'.
1826 * New header file <fstab.h> and new functions `getfsspec', `getfsent' and
1827 friends, for parsing /etc/fstab. This code comes from 4.4 BSD.
1829 * The new function `daemon' from 4.4 BSD is useful for server programs that
1830 want to put themselves in the background.
1832 * Joel Sherrill has contributed support for several standalone boards that
1833 run without an operating system.
1835 * `printf', `scanf' and friends now accept a `q' type modifier for long
1836 long int as well as `ll'. Formats using these might be `%qu' or `%lld'.
1838 * All of the code taken from BSD (notably most of the math and networking
1839 routines) has been updated from the BSD 4.4-Lite release.
1841 * The resolver code has been updated from the BIND-4.9.3-BETA9 release.
1843 * The new functions `getdomainname' and `setdomainname' fetch or change the
1844 YP/NIS domain name. These are system calls which exist on systems which
1845 have YP (aka NIS).
1847 * The time zone data files have been updated for the latest international
1848 conventions.
1850 * The SunRPC programs `portmap' and `rpcinfo' are now installed in
1851 $(sbindir) (usually /usr/local/sbin) instead of $(bindir).
1852 \f
1853 Version 1.08
1855 * The C library now includes support for Sun RPC, from Sun's free
1856 RPCSRC-4.0 distribution. The `portmap', `rpcinfo', and `rpcgen' programs
1857 are included. (There is still no support for YP.)
1859 * Tom Quinn has contributed a port of the C library to SGI machines running
1860 Irix 4 (mips-sgi-irix4).
1862 * The new `lockf' function is a simplified interface to the locking
1863 facilities of `fcntl', included for compatibility.
1865 * New time functions `timegm', `timelocal', and `dysize' for compatibility.
1867 * New header file <sys/timeb.h> and new function `ftime' for compatibility.
1869 * New header files <poll.h> and <sys/poll.h> and new function `poll' for
1870 compatibility.
1872 * The error message printed by `assert' for a failed assertion now includes
1873 the name of the program (if using GNU ld) and the name of the calling
1874 function (with versions of GCC that support this).
1876 * The `psignal' function is now declared in <signal.h>, not <stdio.h>.
1878 * The library now includes the <sys/mman.h> header file and memory
1879 management functions `mmap', `munmap', `mprotect', `msync', and
1880 `madvise', on systems that support those facilities.
1882 * The interface for `mcheck' has changed slightly: the function called to
1883 abort the program when an allocation inconsistency is detected now takes
1884 an argument that indicates the type of failure. The new function
1885 `mprobe' lets you request a consistency check for a particular block at
1886 any time (checks are normally done only when you call `free' or `realloc'
1887 on a block).
1889 * It is now possible to easily cross-compile the C library, building on one
1890 system a library to run on another machine and/or operating system. All
1891 you need to do is set the variable `HOST_CC' in `configparms' to the
1892 native compiler for programs to run on the machine you are building on (a
1893 few generator programs are used on Unix systems); set `CC' to the
1894 cross-compiler.
1896 * The new function `fexecve' (only implemented on the GNU system) executes
1897 a program file given a file descriptor already open on the file.
1898 \f
1899 Version 1.07
1901 * Brendan Kehoe has contributed most of a port to the DEC Alpha
1902 running OSF/1 (alpha-dec-osf1). He says it is 75% complete.
1904 * You can set the variable `libprefix' in `configparms' to specify a prefix
1905 to be prepended to installed library files; this makes it easy to install
1906 the GNU C library to be linked as `-lgnuc' or whatever.
1908 * The new `stpncpy' is a cross between `stpcpy' and `strncpy': It
1909 copies a limited number of characters from a string, and returns the
1910 address of the last character written.
1912 * You no longer need to check for whether the installed `stddef.h' is
1913 compatible with the GNU C library. configure now checks for you.
1915 * You can now define a per-stream `fileno' function to convert the
1916 stream's cookie into an integral file descriptor.
1918 * ``malloc (0)'' no longer returns a null pointer. Instead, it
1919 allocates zero bytes of storage, and returns a unique pointer which
1920 you can pass to `realloc' or `free'. The behavior is undefined if
1921 you dereference this pointer.
1923 * The C library now runs on Sony NEWS m68k machines running either
1924 NewsOS 3 or NewsOS 4.
1926 * The new `syscall' function is a system-dependent primitive function
1927 for invoking system calls. It has the canonical behavior on Unix
1928 systems, including unreliable return values for some calls (such as
1929 `pipe', `fork' and `getppid').
1931 * The error code `EWOULDBLOCK' is now obsolete; it is always defined
1932 to `EAGAIN', which is the preferred name. On systems whose kernels
1933 use two distinct codes, the C library now translates EWOULDBLOCK to
1934 EAGAIN in every system call function.
1935 \f
1936 Version 1.06
1938 * The GNU C Library Reference Manual is now distributed with the library.
1939 `make dvi' will produce a DVI file of the printed manual.
1940 `make info' will produce Info files that you can read on line using C-h i
1941 in Emacs or the `info' program.
1942 Please send comments on the manual to bug-glibc-manual@gnu.org.
1944 * The library now supports SVR4 on i386s (i386-unknown-sysv4).
1946 * Brendan Kehoe has contributed a port to Sun SPARCs running Solaris 2.
1948 * Jason Merrill has contributed a port to the Sequent Symmetry running
1949 Dynix version 3 (i386-sequent-dynix).
1951 * The library has been ported to i386s running SCO 3.2.4 (also known as SCO
1952 ODT 2.0; i386-unknown-sco3.2.4) or SCO 3.2 (i386-unknown-sco3.2).
1954 * New function `memory_warnings' lets you arrange to get warnings when
1955 malloc is running out of memory to allocate, like Emacs gives you.
1957 * The C library now contains the relocating allocator used in Emacs 19 for
1958 its editing buffers. This allocator (ralloc) minimizes allocation
1959 overhead and fragmentation by moving allocated regions around whenever it
1960 needs to. You always refer to a ralloc'd region with a "handle" (a
1961 pointer to a pointer--an object of type `void **').
1963 * There is a new `printf' format: `%m' gives you the string corresponding
1964 to the error code in `errno'.
1966 * In `scanf' formats, you can now use `%as' or `%a[' to do the normal `%s'
1967 or `%[' conversion, but instead of filling in a fixed-sized buffer you
1968 pass, the `a' modifier says to fill in a `char **' you pass with a
1969 malloc'd string.
1971 * The `fnmatch' function supports the new flag bits `FNM_LEADING_DIR' and
1972 `FNM_CASEFOLD'. `FNM_LEADING_DIR' lets a pattern like `foo*' match a
1973 name like `foo/bar'. `FNM_CASEFOLD' says to ignore case in matching.
1975 * `mkstemp' is a traditional Unix function to atomically create and open a
1976 uniquely-named temporary file.
1977 \f
1978 Version 1.05
1980 * The standard location for the file that says what the local timezone is
1981 has changed again. It is now `/usr/local/etc/localtime' (or more
1982 precisely, `${prefix}/etc/localtime') rather than `/etc/localtime'.
1984 * The distribution no longer contains any files with names longer than 14
1985 characters.
1987 * `struct ttyent' has two new flag bits: TTY_TRUSTED and TTY_CONSOLE.
1988 These are set by the new `trusted' and `console' keywords in `/etc/ttys'.
1990 * New functions `ttyslot' and `syslog' from 4.4 BSD.
1991 \f
1992 Version 1.04
1994 * The configuration process has changed quite a bit. The `configure'
1995 script is now used just like the configuration scripts for other GNU
1996 packages. The `sysdeps' directory hierarchy is much rearranged.
1997 The file `INSTALL' explains the new scheme in detail.
1999 * The header files no longer need to be processed into ANSI C and
2000 traditional C versions. There is just one set of files to install, and
2001 it will work with ANSI or old C compilers (including `gcc -traditional').
2003 * Brendan Kehoe and Ian Lance Taylor have ported the library to the
2004 MIPS DECStation running Ultrix 4.
2006 * The Sun 4 startup code (crt0) can now properly load SunOS 4 shared libraries.
2007 Tom Quinn contributed the initial code. The GNU C library can NOT yet be
2008 made itself into a shared library.
2010 * Yet further improved support for the i386, running 4.3 BSD-like systems
2011 (such as Mach 3 with the Unix single-server), or System V.
2013 * New function `strncasecmp' to do case-insensitive string comparison
2014 with limited length.
2016 * New function `strsep' is a reentrant alternative to `strtok'.
2018 * New functions `scandir' and `alphasort' for searching directories.
2020 * New function `setenv' is a better interface to `putenv'.
2022 * Ian Lance Taylor has contributed an implementation of the SVID `ftw'
2023 function for traversing a directory tree.
2025 * The GNU obstack package is now also part of the C library.
2026 The new function `open_obstack_stream' creates a stdio stream that
2027 writes onto an obstack; `obstack_printf' and `obstack_vprintf' do
2028 formatted output directly to an obstack.
2030 * Miscellaneous new functions: reboot, nice, sigaltstack (4.4 BSD only),
2031 cfmakeraw, getusershell, getpass, swab, getttyent, seteuid, setegid.
2033 * `FNM_FILE_NAME' is another name for `FNM_PATHNAME', used with `fnmatch'.
2035 * The new functions `strfry' and `memfrob' do mysterious and wonderful
2036 things to your strings.
2038 * There are some new test programs: test-fseek, testmb, and testrand.
2040 * Some work has been done to begin porting the library to 4.4 BSD and Linux.
2041 These ports are not finished, but are a good starting place for really
2042 supporting those systems.
2044 * `/etc/localtime' is now the standard location for the file that says what
2045 the local timezone is, rather than `/usr/local/lib/zoneinfo/localtime'.
2046 This follows the general principle that `/etc' is the place for all local
2047 configuration files.
2049 * The C library header files now use `extern "C"' when used by the C++
2050 compiler, so the C library should now work with C++ code.
2052 * The header file <bstring.h> is gone. <string.h> now declares bcopy,
2053 bcmp, bzero, and ffs. (Update: nowadays these functions are declared
2054 in <strings.h>.)
2056 * Mike Haertel (of GNU e?grep and malloc fame) has written a new sorting
2057 function which uses the `merge sort' algorithm, and is said to be
2058 significantly faster than the old GNU `qsort' function. Merge sort is
2059 now the standard `qsort' function. The new algorithm can require a lot
2060 of temporary storage; so, the old sorting function is called when the
2061 required storage is not available.
2063 * The C library now includes Michael Glad's Ultra Fast Crypt, which
2064 provides the Unix `crypt' function, plus some other entry points.
2066 * The code and header files taken from 4.4 BSD have been updated with the
2067 latest files released from Berkeley.
2068 \f
2069 ----------------------------------------------------------------------
2070 Copyright information:
2072 Copyright (C) 1992-2009, 2010, 2011 Free Software Foundation, Inc.
2074 Permission is granted to anyone to make or distribute verbatim copies
2075 of this document as received, in any medium, provided that the
2076 copyright notice and this permission notice are preserved,
2077 thus giving the recipient permission to redistribute in turn.
2079 Permission is granted to distribute modified versions
2080 of this document, or of portions of it,
2081 under the above conditions, provided also that they
2082 carry prominent notices stating who last changed them.
2083 \f
2084 Local variables:
2085 version-control: never
2086 fill-column: 76
2087 End: