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1 GNU C Library NEWS -- history of user-visible changes. 2011-11-14
2 Copyright (C) 1992-2009, 2010, 2011 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 2.15
10 * The following bugs are resolved with this release:
12 6779, 6783, 9696, 10103, 10709, 11589, 12403, 12847, 12868, 12852, 12874,
13 12885, 12892, 12907, 12922, 12935, 13007, 13021, 13067, 13068, 13090,
14 13092, 13114, 13118, 13123, 13134, 13138, 13147, 13150, 13179, 13192,
15 13268, 13276, 13291, 13335, 13337, 13344, 13358, 13367
17 * New program pldd to list loaded object of a process
18 Implemented by Ulrich Drepper.
20 * Add nss_db support back to glibc. No more dependency on Berkeley db
21 and support for initgroups lookups.
22 Implemented by Ulrich Drepper.
24 * Optimized strcpy, strncpy, stpcpy, stpncpy for SSE2 and SSSE3 on x86-32.
25 Contributed by HJ Lu.
27 * Improved strcpy, strncpy, stpcpy, stpncpy for SSE2 and SSSE3 on x86-64.
28 Contributed by HJ Lu.
30 * Optimized strcat, strncat on x86-64 and optimized wcscmp, wcslen, strnlen
31 on x86-32 and x86-64.
32 Contributed by Liubov Dmitrieva.
34 * Optimized strchr and strrchr for SSE on x86-32.
35 Contributed by Liubov Dmitrieva.
37 * Optimized memchr, memrchr, rawmemchr, memcmp, wmemcmp, wcschr, wcscpy
38 for x86-64 and x86-32.
39 Contributed by Liubov Dmitrieva.
41 * New interfaces: scandirat, scandirat64
42 Implemented by Ulrich Drepper.
44 * Checking versions of FD_SET, FD_CLR, and FD_ISSET added.
45 Implemented by Ulrich Drepper.
47 * nscd now also caches the netgroup database.
48 Implemented by Ulrich Drepper.
50 * Integrate libm with gcc's -ffinite-math-only option.
51 Implemented by Ulrich Drepper.
53 * Lots of generic, 64-bit, and x86-64-specific performance optimizations
54 to math functions. Implemented by Ulrich Drepper.
56 * Optimized strcasecmp and strncasecmp for AVX on x86-64.
57 Implemented by Ulrich Drepper.
59 * New Linux interfaces: process_vm_readv, process_vm_writev
61 * Optimized strcasecmp and strncasecmp for SSSE3 and SSE4.2 on x86-32.
62 Implemented by Ulrich Drepper.
63 \f
64 Version 2.14
66 * The following bugs are resolved with this release:
68 386, 6420, 7101, 9730, 9732, 9809, 10138, 10149, 10157, 11099, 11257,
69 11258, 11487, 11532, 11558, 11578, 11634, 11653, 11668, 11697, 11724,
70 11781, 11799, 11820, 11837, 11857, 11869, 11892, 11895, 11901, 11945,
71 11947, 11952, 11987, 12052, 12083, 12158, 12178, 12200, 12346, 12350,
72 12393, 12420, 12432, 12445, 12449, 12453, 12454, 12460, 12469, 12489,
73 12509, 12510, 12511, 12518, 12527, 12541, 12545, 12551, 12582, 12583,
74 12587, 12597, 12601, 12611, 12625, 12626, 12631, 12650, 12653, 12655,
75 12660, 12671, 12681, 12684, 12685, 12711, 12713, 12714, 12717, 12723,
76 12724, 12734, 12738, 12746, 12766, 12775, 12777, 12782, 12788, 12792,
77 12795, 12811, 12813, 12814, 12841
79 * The RPC implementation in libc is obsoleted. Old programs keep working
80 but new programs cannot be linked with the routines in libc anymore.
81 Programs in need of RPC functionality must be linked against TI-RPC.
82 The TI-RPC implementation is IPv6 enabled and there are other benefits.
84 Visible changes of this change include (obviously) the inability to link
85 programs using RPC functions without referencing the TI-RPC library and the
86 removal of the RPC headers from the glibc headers.
87 Implemented by Ulrich Drepper.
89 * New Linux interfaces: clock_adjtime, name_to_handle_at, open_by_handle_at,
90 syncfs, setns, sendmmsg
92 * New locales: os_RU, bem_ZA, en_ZA, ff_SN, sw_KE, sw_TZ, lb_LU, wae_CH,
93 yue_HK, lij_IT, mhr_RU
95 * New encodings: CP770, CP771, CP772, CP773, CP774
97 * New program sotruss to trace calls through PLTs
98 Implemented by Ulrich Drepper.
100 * The malloc hook implementation is marked deprecated and will be removed
101 from the default implementation in the next version. The design never
102 worked ever since the introduction of threads. Even programs which do
103 not create threads themselves can use multiple threads created internally.
104 \f
105 Version 2.13
107 * The following bugs are resolved with this release:
109 3268, 6812, 7066, 10085, 10484, 10563, 10851, 11149, 11155, 11577, 11611,
110 11640, 11655, 11701, 11840, 11856, 11883, 11903, 11904, 11968, 11979,
111 12005, 12037, 12067, 12077, 12078, 12092, 12093, 12107, 12108, 12113,
112 12140, 12159, 12167, 12191, 12194, 12201, 12204, 12205, 12207, 12348,
113 12378, 12394, 12397
115 * New Linux interfaces: prlimit, prlimit64, fanotify_init, fanotify_mark
117 * POWER7 optimizations: memset, memcmp, strncmp
119 * New optimized string functions for x86-64: strnlen (SSE2),
120 strcasecmp (SSE2, SSSE3, SSE4.2), strncasecmp (SSE2, SSSE3, SSE4.2)
121 Implemented by Ulrich Drepper.
122 \f
123 Version 2.12
125 * The following bugs are resolved with this release:
127 3662, 4457, 5553, 10162, 10401, 10414, 10554, 10824, 10864, 10915, 10918,
128 10936, 10939, 10958, 10968, 10969, 10972, 10992, 11000, 11001, 11007,
129 11010, 11027, 11039, 11040, 11041, 11043, 11046, 11056, 11070, 11093,
130 11115, 11120, 11125, 11126, 11127, 11134, 11141, 11149, 11183, 11184,
131 11185, 11186, 11187, 11188, 11189, 11190, 11191, 11192, 11193, 11194,
132 11200, 11230, 11235, 11242, 11254, 11258, 11271, 11272, 11276, 11279,
133 11287, 11292, 11319, 11332, 11333, 11387, 11389, 11390, 11394, 11397,
134 11410, 11438, 11449, 11470, 11471, 11520, 11537, 11538, 11571
136 * New interfaces: pthread_getname_np, pthread_setname_np
138 * New Linux interface: recvmmsg
140 * STT_GNU_IFUNC implemented for Sparc by David Miller.
142 * The dynamic linker now recognizes supported ABI versions from the
143 EI_ABIVERSION field in the ELF header.
144 Implemented by Ulrich Drepper.
146 * New NIS mode selector ADJUNCT_AS_SHADOW. The passwd.adjunct.byname table
147 will not be used to fill in password fields in the passwd.byname replies.
148 Instead it is used to synthesize the shadow.byname table, should it be
149 missing. This is a useful mode in some installations involving Solaris.
150 Implemented by Ulrich Drepper.
152 * New locales: kok_IN, sq_MK, cv_RU
153 \f
154 Version 2.11
156 * The following bugs are resolved with this release:
158 3270, 7094, 9924, 9986, 10011, 10085, 10107, 10159, 10162, 10166, 10183,
159 10195, 10196, 10200, 10203, 10207, 10211, 10213, 10217, 10221, 10229,
160 10262, 10286, 10312, 10315, 10319, 10349, 10360, 10391, 10402, 10416,
161 10418, 10422, 10425, 10446, 10448, 10452, 10540, 10553, 10560, 10564,
162 10609, 10643, 10692, 10713, 10717, 10730, 10731, 10742, 10780, 10784,
163 10789, 10817, 10823, 10840, 10847
165 * New interfaces: execvpe, pthread_sigqueue, mkstemps, mkstemps64, mkostemps,
166 mkostemps64
167 Implemented by Ulrich Drepper.
169 * Checking version of longjmp added that fails if an uninitialized stack
170 frame would be created. Implemented by Ulrich Drepper.
172 * STT_GNU_IFUNC is now supported in static executables.
173 Implemented by H.J. Lu.
175 * STT_GNU_IFUNC implemented for PPC by Alan Modra.
177 * New optimized string functions for x86-64: strstr, strcasestr, memcmp,
178 strcspn, strpbrk, strspn, strcpy, stpcpy, strncpy, strcmp (SSE2, SSE4.2),
179 strncmp (SSE2, SSE4.2), strchr (SSE4.2), strrchr (SSE4.2).
180 Contributed by H.J. Lu.
182 strlen, rawmemchr, strcmp (SSSE3), strncmp (SSSE3).
183 Implemented by Ulrich Drepper.
185 * New optimized string functions for x86: strlen, strcspn, strspn, strpbrk,
186 strstr, strcasestr.
187 Contributed by H.J. Lu.
189 * Support for fma instruction in AVX on x86-64.
190 Implemented by H.J. Lu and Ulrich Drepper.
192 * AVX support in x86-64 auditing support in ld.so.
193 Implemented by H.J. Lu.
195 * STB_GNU_UNIQUE support added.
196 Implemented by Ulrich Drepper.
198 * Implement second fallback mode for optimized DNS lookup for even more
199 broken environments. If two requests from the same port are not
200 handled correctly close the socket and open a new one before sending
201 the second request. The 'single-request-reopen' option in /etc/resolv.conf
202 can be used to select this mode right away, instead of rediscovering the
203 necessity is every process again.
204 Implemented by Ulrich Drepper.
206 * New resolver flag RES_USE_DNSSEC to enable use of verified lookup.
207 Implemented by Adam Tkac.
209 * Optimized iconv conversions for S390x.
210 Implemented by Andreas Krebbel.
212 * Using condvars with PI mutexes is now more efficient due to kernel
213 support for requeueing to PI futexes. NPTL support added for x86-64.
214 Implemented by Ulrich Drepper.
216 * New locales: ps_AF, my_MM
217 \f
218 Version 2.10
220 * The following bugs are resolved with this release:
222 697, 5381, 5807, 6411, 6545, 7040, 7058, 7067, 7080, 7083, 7095, 7098,
223 9677, 9694, 9697, 9701, 9704, 9705, 9706, 9720, 9726, 9730, 9733, 9736,
224 9741, 9750, 9753, 9759, 9781, 9791, 9793, 9823, 9833, 9844, 9880, 9881,
225 9891, 9893, 9895, 9913, 9916, 9920, 9948, 9955, 9957, 9963, 9985, 10052,
226 10069, 10086, 10087, 10090, 10092, 10093, 10100, 10118, 10128
228 * New interfaces: preadv, preadv64, pwritev, pwritev64, malloc_info
229 Implemented by Ulrich Drepper.
231 * New Linux interfaces: accept4, fallocate, fallocate64.
232 Implemented by Ulrich Drepper.
234 * Correct declarations of string function when used in C++ code. This
235 could lead to compile errors for invalid C++ code.
237 * XPG7/POSIX 2008 compilation environment. Many GNU-specific functions are
238 now in POSIX.
240 * New POSIX 2008 interface: psiginfo
241 Implemented by Ulrich Drepper.
243 * New ISO C++1x interfaces: quick_exit, at_quick_exit
244 Implemented by Ulrich Drepper.
246 * Support for selecting between multiple function definitions at runtime
247 using STT_GNU_IFUNC symbols. Implemented by Ulrich Drepper.
249 * The libcrypt library can now use the hash function implementations in
250 NSS. Implemented by Ulrich Drepper.
252 * The malloc implementation can be compiled to be less memory efficient
253 but higher performing in multi-threaded programs.
254 Implemented by Ulrich Drepper.
256 * New locales: nan_TW@latin, ks_IN
258 * Faster strlen, strchr, strchrnul, strrchr, memchr, and rawmemchr for x86-64.
259 Implemented by Ulrich Drepper.
261 * Extended printf hook support. It is possible to use user-defined types
262 and extend existing format specifiers.
263 Implemented by Ulrich Drepper.
265 * Handling for group shadow files has been added.
266 Implemented by Ulrich Drepper.
268 * DNS IPv4-IPv6 parallel lookup now deals better with broken DNS
269 servers (the case, e.g., for some people using the built-in DNS
270 server in ADSL modems/routers). There is a once-per-process timeout
271 in case of a broken server. To avoid it, users can run nscd or put
272 'options single-request' in /etc/resolv.conf.
273 Implemented by Ulrich Drepper.
274 \f
275 Version 2.9
277 * The following bugs are resolved with this release:
279 3406, 5209, 5210, 5381, 5794, 5814, 5911, 6428, 6438, 6442, 6447, 6461,
280 6472, 6505, 6544, 6589, 6612, 6634, 6653, 6654, 6657, 6698, 6712, 6713,
281 6719, 6723, 6724, 6740, 6763, 6771, 6790, 6791, 6817, 6824, 6839, 6843,
282 6845, 6856, 6857, 6860, 6867, 6875, 6919, 6920, 6942, 6947, 6955, 6966,
283 6968, 6974, 6980, 6995, 7008, 7009, 7029
285 * Unified lookup for getaddrinfo: IPv4 and IPv6 addresses are now looked
286 up at the same time. Implemented by Ulrich Drepper.
288 * TLS descriptors for LD and GD on x86 and x86-64.
289 Implemented by Alexandre Oliva.
291 * getaddrinfo now handles DCCP and UDPlite.
292 Implemented by Ulrich Drepper.
294 * New fixed-size conversion macros: htobe16, htole16, be16toh, le16toh,
295 htobe32, htole32, be32toh, le32toh, htobe64, htole64, be64toh, le64toh.
296 Implemented by Ulrich Drepper.
298 * New implementation of memmem, strstr, and strcasestr which is O(n).
299 Implemented by Eric Blake.
301 * New Linux interfaces: inotify_init1, dup3, epoll_create1, pipe2
303 * Implement "e" option for popen to open file descriptor with the
304 close-on-exec flag set. Implemented by Ulrich Drepper.
306 * Implement "b" mode for fmemopen. In this mode writes writes don't
307 implicitly add a NUL byte and seeks from the end of the buffer really
308 use the buffer end, not the string length as the basis.
309 Implemented by Ulrich Drepper.
311 * Many functions, exported and internal, now atomically set the close-on-exec
312 flag when run on a sufficiently new kernel. Implemented by Ulrich Drepper.
314 * Sorting rules for some Indian languages (Kannada, Gurumukhi, Telugu,
315 Sinhala)
316 Implemented by Pravin Satpute.
318 * New locales: sd_IN, sd_IN@devanagari, ks_IN@devanagari, ht_HT, en_AG, nl_AW.
319 \f
320 Version 2.8
322 * The following bugs are resolved with this release:
324 2549, 3112, 4314, 4407, 4997, 5012, 5040, 5112, 5204, 5208, 5209, 5220,
325 5222, 5224, 5225, 5237, 5238, 5240, 5245, 5277, 5346, 5375, 5378, 5382,
326 5424, 5427, 5428, 5435, 5436, 5439, 5441, 5442, 5443, 5451, 5452, 5454,
327 5455, 5463, 5464, 5465, 5475, 5477, 5478, 5520, 5541, 5545, 5553, 5600,
328 5602, 5607, 5614, 5627, 5628, 5736, 5737, 5741, 5753, 5760, 5762, 5768,
329 5774, 5777, 5778, 5779, 5786, 5790, 5818, 5854, 5857, 5903, 5939, 5979,
330 5983, 5995, 5998, 6004, 6007, 6020, 6021, 6024, 6040, 6042
332 * New locales: bo_CN, bo_IN, shs_CA.
334 * New encoding: HP-ROMAN9, HP-GREEK8, HP-THAI8, HP-TURKISH8.
336 * Sorting rules for some Indian languages (Devanagari and Gujarati).
337 Implemented by Pravin Satpute.
339 * IPV6 addresses in /etc/resolv.conf can now have a scope ID
341 * nscd caches now all timeouts for DNS entries
342 Implemented by Ulrich Drepper.
344 * nscd is more efficient and wakes up less often.
345 Implemented by Ulrich Drepper.
347 * More checking functions: asprintf, dprintf, obstack_printf, vasprintf,
348 vdprintf, and obstack_vprintf.
349 Implemented by Jakub Jelinek.
351 * Faster memset for x86-64.
352 Implemented by Harsha Jagasia and H.J. Lu.
354 * Faster memcpy on x86.
355 Implemented by Ulrich Drepper.
357 * ARG_MAX is not anymore constant on Linux. Use sysconf(_SC_ARG_MAX).
358 Implemented by Ulrich Drepper.
360 * Faster sqrt and sqrtf implemention for some PPC variants.
361 Implemented by Stephen Munroe.
362 \f
363 Version 2.7
365 * The following bugs are resolved with this release:
367 4125, 4126, 4178, 4359, 4407, 4512, 4514, 4525, 4554, 4556, 4557, 4566,
368 4582, 4586, 4588, 4599, 4610, 4647, 4702, 4705, 4726, 4745, 4772, 4773,
369 4775, 4776, 4792, 4813, 4814, 4816, 4833, 4858, 4860, 4896, 4905, 4925,
370 4936, 4937, 4938, 4941, 4946, 4963, 4972, 5010, 5028, 5043, 5058, 5063,
371 5071, 5103, 5104, 5112, 5113, 5184, 5186
373 * More checking functions: fread, fread_unlocked, open*, mq_open.
374 Implemented by Jakub Jelinek and Ulrich Drepper.
376 * Extend fortification to C++. Implemented by Jakub Jelinek.
378 * Implement 'm' modifier for scanf. Add stricter C99/SUS compliance
379 by not recognizing 'a' as a modifier when those specs are requested.
380 Implemented by Jakub Jelinek.
382 * PPC optimizations to math and string functions.
383 Implemented by Steven Munroe.
385 * New interfaces: mkostemp, mkostemp64. Like mkstemp* but allow additional
386 options to be passed. Implemented by Ulrich Drepper.
388 * More CPU set manipulation functions. Implemented by Ulrich Drepper.
390 * New Linux interfaces: signalfd, eventfd, eventfd_read, and eventfd_write.
391 Implemented by Ulrich Drepper.
393 * Handle private futexes in the NPTL implementation.
394 Implemented by Jakub Jelinek and Ulrich Drepper.
396 * Add support for O_CLOEXEC. Implement in Hurd. Use throughout libc.
397 Implemented by Roland McGrath and Ulrich Drepper.
399 * Linux/x86-64 vDSO support. Implemented by Ulrich Drepper.
401 * SHA-256 and SHA-512 based password encryption.
402 Implemented by Ulrich Drepper.
404 * New locales: ber_DZ, ber_MA, en_NG, fil_PH, fur_IT, fy_DE, ha_NG, ig_NG,
405 ik_CA, iu_CA, li_BE, li_NL, nds_DE, nds_NL, pap_AN, sc_IT, tk_TM, ug_CN,
406 yo_NG.
408 + New iconv modules: MAC-CENTRALEUROPE, ISO-8859-9E, KOI8-RU.
409 Implemented by Ulrich Drepper.
410 \f
411 Version 2.6
413 * The following bugs are resolved with this release:
415 3156, 3213, 3285, 3291, 3306, 3313, 3320, 3322, 3325, 3326, 3334, 3348,
416 3352, 3363, 3369, 3426, 3427, 3429, 3451, 3458, 3465, 3480, 3483, 3493,
417 3514, 3515, 3559, 3632, 3664, 3673, 3674, 3745, 3747, 3818, 3840, 3842,
418 3851, 3855, 3884, 3885, 3902, 3905, 3919, 3944, 3954, 3955, 3957, 3991,
419 3995, 3996, 4024, 4040, 4069, 4070, 4074, 4076, 4096, 4101, 4102, 4114,
420 4130, 4131, 4181, 4276, 4306, 4342, 4344, 4349, 4364, 4368, 4381, 4392,
421 4403, 4405, 4406, 4411, 4438, 4439, 4455, 4456, 4465, 4512, 4514, 4586,
422 4702, 4858
424 * New Linux interfaces: epoll_pwait, sched_getcpu.
426 * New generic interfaces: strerror_l.
428 * nscd can now cache the services database. Implemented by Ulrich Drepper.
429 \f
430 Version 2.5
432 * The following bugs are resolved with this release:
434 39, 68, 192, 352, 388, 531, 935, 1006, 1201, 1203, 1386, 1782, 1783, 1784,
435 1785, 1786, 1787, 1951, 1974, 1996, 2072, 2098, 2125, 2134, 2158, 2182,
436 2349, 2376, 2386, 2389, 2415, 2418, 2420, 2423, 2450, 2451, 2466, 2472,
437 2473, 2477, 2498, 2499, 2501, 2502, 2505, 2507, 2508, 2509, 2517, 2526,
438 2569, 2571, 2592, 2611, 2625, 2632, 2644, 2662, 2680, 2683, 2684, 2693,
439 2695, 2703, 2734, 2751, 2764, 2766, 2775, 2792, 2821, 2823, 2832, 2841,
440 2843, 2883, 2892, 2908, 2914, 2926, 2961, 2978, 2980, 2987, 2997, 2998,
441 3013, 3018, 3034, 3040, 3044, 3123, 3124, 3137, 3138, 3143, 3155, 3189,
442 3225, 3251, 3252, 3253, 3273
444 * For Linux, the sorting of addresses returned by getaddrinfo now also
445 handles rules 3, 4, and 7 from RFC 3484. I.e., all rules are handled.
446 Implemented by Ulrich Drepper.
448 * Allow system admin to configure getaddrinfo with the /etc/gai.conf file.
449 Implemented by Ulrich Drepper.
451 * New Linux interfaces: splice, tee, sync_file_range, vmsplice.
453 * New iconv module for MIK. Contributed by Alexander Shopov.
455 * For sites with broken group and/or passwd database, the auto-propagate
456 option of nscd can prevent creating ID lookup entries from the results
457 of a name lookup and vice versa. This usually is no problem but some
458 site might have problems with the default behavior.
459 Implemented by Ulrich Drepper.
461 * Iterating over entire database in NIS can be slow. With the
462 SETENT_BATCH_READ option in /etc/default/nss a system admin can decide
463 to trade time for memory. The entire database will be read at once.
464 Implemented by Ulrich Drepper.
466 * The interfaces introduced in RFC 3542 have been implemented by
467 Ulrich Drepper.
469 * Support for the new ELF hash table format was added by Ulrich Drepper.
471 * Support for priority inheritance mutexes added by Jakub Jelinek and
472 Ulrich Drepper.
474 * Support for priority protected mutexes added by Jakub Jelinek.
476 * New locales: nr_ZA, pa_PK, ca_AD, ca_FR, ca_IT, el_CY, tr_CY, as_IN,
477 or_IN, csb_PL, fy_NL, sr_ME.
478 \f
479 Version 2.4
481 * More overflow detection functions.
483 * New iconv converters for IBM1025, IBM1122, IBM1137, IBM1153,
484 IBM1154, IBM1155, IBM1156, IBM1157, and IBM1158 contributed by Jiro Sekiba.
486 More converters for IBM803, IBM901, IBM902, IBM921, IBM1008, IBM1097,
487 IBM1112, IBM1123, IBM1130, IBM1140, IBM1141, IBM1142, IBM1143, IBM1144,
488 IBM1145, IBM1146, IBM1147, IBM1148, IBM1149, IBM1166, IBM1167, IBM4517,
489 IBM4899, IBM4909, IBM4971, IBM5347, IBM9030, IBM9066, IBM9448, IBM12712,
490 IBM16804, IBM1364, IBM1371, IBM1388, IBM1390, and IBM1399 contributed
491 by Masahide Washizawa.
493 * It is now possible to install audit libraries for the dynamic linker using
494 LD_AUDIT. Implemented by Ulrich Drepper.
496 * The LinuxThreads add-on, providing pthreads on Linux 2.4 kernels, is no
497 longer supported. The new NPTL implementation requires Linux 2.6 kernels.
498 For a libc and libpthread that works well on Linux 2.4 kernels, we
499 recommend using the stable 2.3 branch.
501 * The new function open_wmemstream acts like open_memstream,
502 but uses a wchar_t wide character buffer.
504 * The new function ppoll is an improved version of poll, similar to pselect.
506 * New interfaces: fdopendir, openat, fstatat, fchmodat, fchownat,
507 futimesat, faccessat, mkdirat, mkfifoat, mknodat,
508 renameat, unlinkat, linkat, symlinkat, readlinkat.
510 * New Linux kernel system calls: unshare,
511 inotify_init, inotify_add_watch, inotify_rm_watch.
513 * The euidaccess function is now also known by the alias eaccess,
514 for compatibility with some other systems.
516 * Timezone data updated to 2006b version.
517 \f
518 Version 2.3.6
520 * The following bugs are resolved with this release:
522 38, 253, 549, 622, 653, 721, 758, 851, 877, 915, 934, 955, 961,
523 1016, 1037, 1076, 1079, 1080, 1081, 1082, 1083, 1084, 1085, 1086,
524 1087, 1088, 1090, 1091, 1092, 1093, 1094, 1095, 1096, 1097, 1098,
525 1099, 1100, 1101, 1102, 1103, 1104, 1105, 1106, 1107, 1108, 1109,
526 1110, 1111, 1112, 1113, 1125, 1137, 1138, 1249, 1250, 1251, 1252,
527 1253, 1254, 1350, 1358, 1394, 1438, 1498, 1534
529 Visit <http://sources.redhat.com/bugzilla/> for the details of each bug.
531 * As of this release, GCC 4 can be used to compile the C Library.
533 * Timezone data updated to 2005m version.
534 \f
535 Version 2.3.5
537 * The following bugs are resolved with this release:
539 284, 592, 602, 626, 633, 640, 650, 661, 671, 681, 693, 700, 710, 719,
540 722, 723, 725, 726, 727, 728, 729, 730, 731, 732, 733, 734, 735, 736,
541 737, 738, 739, 740, 741, 742, 743, 744, 745, 765, 767, 768, 769, 776,
542 777, 787, 821, 822, 823, 825
544 Visit <http://sources.redhat.com/bugzilla/> for the details of each bug.
545 \f
546 Version 2.3.4
548 * Support for RFC 3678. Real implementations exist only for Linux so far.
549 Implemented by Ulrich Drepper.
551 * nscd can now cache entries persistently. Expiring entries are reloaded.
552 For speedups the cache can be shared in memory with client processes.
553 Implemented by Ulrich Drepper.
555 * nscd can now perform SELinux checks.
556 Implemented by Matthew Rickard <mjricka@epoch.ncsc.mil>.
558 * getaddrinfo queries are now cached. Canonical name lookup is performed
559 efficiently.
560 Implemented by Ulrich Drepper.
562 * The nothrow function attribute is used when headers are used by gcc when
563 compiling C code. This can avoid significant amounts of exception
564 handling data.
566 * The malloc functions perform more error checking and are stricter when
567 it comes to reacting on errors. The default action is to terminate
568 the process after showing an error message. Implemented by Ulrich Drepper.
570 * Reverse lookups of IPv6 addresses does not use bit string or .ip6.int
571 lookups anymore unless explicitly requested. Implemented by Ulrich Drepper.
573 * Namespaces in ld.so are implemented. DSOs can be loaded in separate
574 namespaces using the new function dlmopen(). This feature is of course,
575 like most other dynamic loading functionality, not available in statically
576 linked applications. Implemented by Ulrich Drepper.
578 * Low-overhead boundary checking variants of string and some stdio functions
579 were added. These are to be used in conjunction with a gcc patch by
580 Jakub Jelinek which adds calls to these functions if possible.
581 Implemented by Jakub Jelinek and Ulrich Drepper.
583 * Old code for several operating systems and machine architectures that
584 have not been in working condition in a long time have been removed from
585 the main source tree maintained by the GNU C Library's maintainers.
586 These files are now reside in the separate `ports' source module
587 that is usable as an add-on when building the library.
588 \f
589 Version 2.3.3
591 * New functions `dladdr1' and `dlinfo' in <dlfcn.h> provide more ways to
592 interrogate the dynamic linker, compatible with the Solaris interface.
594 * ELF thread-local storage support (TLS) now works on PowerPC and PowerPC64;
595 implemented by Paul Mackerras, Steven Munroe, and Roland McGrath.
597 * getifaddrs now uses the netlink interface on Linux to get its information.
598 Implemented by Thorsten Kukuk.
600 * getaddrinfo now implements AI_V4MAPPED, AI_ALL, and AI_ADDRCONF.
601 Implemented by Ulrich Drepper.
603 * support for non-executable stacks on x86 has been added. Changes mostly
604 by Roland McGrath.
606 * regex is now much faster for multibyte locales. Changes by Jakub Jelinek
607 and Ulrich Drepper.
609 * getaddrinfo now performs destination address selection according to
610 RFC 3484.
611 \f
612 Version 2.3.2
614 * Thread-safe interfaces for many functions that access locale data
615 were added in version 2.3, but these features were omitted from NEWS.
616 Many functions have variants with an `_l' suffix that take a `locale_t'
617 object as a parameter rather than consulting the current locale.
618 The new functions `newlocale', `duplocale', and `freelocale' in <locale.h>
619 create and maintain `locale_t' objects. Additionally, the new function
620 `uselocale' sets "the current locale" (as used by functions not so
621 parameterized) set for an individual thread. These features were added
622 in version 2.3, implemented by Ulrich Drepper and Roland McGrath.
624 * The functions getresuid, getresgid, setresuid, and setresgid, which
625 have long been available on Linux, are now declared in <unistd.h>
626 and are now also available on the Hurd.
628 * ELF thread-local storage support (TLS) now works on x86-64.
630 * The new dynamic string token $LIB is expanded in shared library names.
631 This normally expands to lib, but on some 64-bit platforms to lib64 instead.
633 * Aldy Hernandez contributed complete software floating point support for
634 PowerPC machines with no FPU.
636 * fexecve is implemented on Linux.
638 * The `btowc' function should work at least twice as fast due to
639 specialized callbacks in the iconv modules. Implemented by Bruno Haible.
641 * With approriate thread add-ons cancelable functions are now implemented
642 in libc.so as well. No need to call the function in libpthread. This
643 change allowed to finally disable the incorrect and expensive handling
644 of weak definition in ld.so.
646 * Yet more PLT entries in libc.so have been removed. We finally arrived
647 at the bare minimum. Startup times improved appropriately.
649 * Support for the new Linux/x86 system call interface was added. The
650 AT_SYSINFO auxiliary vector entry is recognized and handled.
651 \f
652 Version 2.3
654 * Masahide Washizawa contributed iconv modules for IBM1163 and IBM1164
655 charsets.
657 * iconv (the program and the interface) now accepts empty names (excluding
658 options like //TRANSLIT) to mean "use charset of current locale".
660 * localedef can now transliterate characters in strings which are not in
661 the provided charmap. The information from the input locale is used.
663 * Prelinking support was added for ELF targets. This requires additional
664 tools and recent versions of the GNU binutils. Contributed by Jakub Jelinek.
666 * Read-only stdio streams now use mmap to speed up operation by eliminating
667 copying and buffer underflows. To use add 'm' to the mode string of
668 the fopen/fdopen/freopen call. Implemented by Ulrich Drepper.
670 * The malloc functions were completely rewritten by Wolfram Gloger based
671 on Doug Lea's malloc-2.7.0.c.
673 * Isamu Hasegawa contributed a completely new and POSIX-conformant
674 implementation of regex.
676 * Bruno Haible upgraded the iconv and locale implementation to support
677 Unicode 3.2.
679 * Contents of the LC_* and LANG environment variables in the CEN style are
680 not recognized anymore. It never was used. Change by Ulrich Drepper.
682 * The runtime (ld.so, libc, libpthread for Linux) now can handle the ELF
683 thread-local storage (TLS) ABI on some platforms.
684 Changes by Ulrich Drepper. SH support by Kaz Kojima.
686 * Bruno Haible contributed iconv converters for ISO-2022-JP-3, SHIFT JIS-X0213,
687 EUC-JISX0213, and TSCII.
689 * New header <ifaddrs.h> with functions `getifaddrs' and `freeifaddrs':
690 BSD-compatible interface for getting all network interface addresses.
691 Implementation for IPv4 by Roland McGrath.
693 * Loading of locale data is faster due to the introduction of a locale
694 archive. Implemented by Roland McGrath and Ulrich Drepper.
696 * Startup times are significantly reduced by not using exported functions
697 inside the library itself. Changes by Jakub Jelinek, Roland McGrath,
698 and Ulrich Drepper.
700 * Steven Munroe contributed a port to PowerPC64/Linux.
701 \f
702 Version 2.2.6
704 * The Hurd now uses the GNU libio implementation of stdio rather than the
705 old GNU stdio implementation, and uses a new ABI (libc.so.0.3).
707 * The Hurd on x86 now has the `ioperm' function and <sys/io.h> header file
708 with the same behavior as the Linux system call of the same name.
709 \f
710 Version 2.2.5
712 * Stephen Moshier implemented log2, log10, powl and cbrtl for the
713 128-bit long double format.
715 * Masahide Washizawa contributed iconv modules for IBM1132, IBM1133, IBM1160,
716 IBM1161, and IBM1162 charsets.
718 * Andreas Jaeger contributed a port to x86-64/Linux.
720 * Peter Bruin contributed a port to PowerPC/Hurd.
722 * libc functions using I/O streams now can handle wide-oriented streams
723 as well.
725 * optimizations in the dynamic linker. Binaries created by recent binutils
726 versions start up quicker due to reduced time spent on relocations.
728 * Support for use of gcc3 added by Jakub Jelinek and HJ Lu.
729 \f
730 Version 2.2.4
732 * Stephen Moshier implemented cosh, expm1, log1p, acos, sinh, tanh,
733 asinh, atanh, j0 for the 128-bit long double format.
735 * Bruno Haible updated all the code handling Unicode in some form to
736 support Unicode 3.1.
738 * Speed of regex for single-byte locales is back to previous levels.
739 Patch by Isamu Hasegawa.
741 * Alpha, SPARC, and IA-64 now also using floating stacks.
743 * Startup time of internationalized applications greatly improved through
744 iconv cache. Use iconvconfig to generate the cache file.
745 Contributed by Ulrich Drepper.
747 * The IA-64 specific part of ld.so was rewritten to eliminate some pretty
748 severe performance problems. Patch by David Mosberger.
750 * The Hurd port got a lot more functionality like AIO, various stdio
751 extensions, etc. Mainly done by Roland McGrath.
753 * mtrace can now lookup symbols in shared libraries.
754 \f
755 Version 2.2.3
757 * Intel's IA-64 math library is largely integrated. It provides fast and
758 accurate implementatations for most basic and standard math functions
759 in float, double, and long double format.
761 * Stephen Moshier implemented j0, j1, jn, y0, y1, yn, lgamma, erf, erfc,
762 and asin for the 96-bit long double format and asin, log, tan for the
763 128-bit long double format.
765 * The beginning of a last-bit accurate math library by IBM Haifa were added.
766 The basic double functions exist today. Contributed by Abraham Ziv
767 <ziv@il.ibm.com>, Moshe Olshansky <olshansk@il.ibm.com>, Ealan Henis
768 <ealan@il.ibm.com>, and Anna Reitman <reitman@il.ibm.com>.
770 * An asynchronous name lookup library was added. The interface is designed
771 after POSIX AIO. The proposal was circulated beforehand to get comments.
772 No negative ones came in. Implemented by Ulrich Drepper.
774 * Port to S390/64bit contributed by Martin Schwidefsky
775 <schwidefsky@de.ibm.com>.
777 * David Mosberger <davidm@hpl.hp.com> implemented the setcontext family
778 of functions for Linux/IA-64.
780 * The RPC code is now thread safe. Threads can now use the same service
781 of different services at the same time. Patch by Eric Norum
782 <eric.norum@usask.ca> with some help by Ulrich Drepper.
784 * Martin Schwidefsky <schwidefsky@de.ibm.com> implemented the setcontext
785 family of functions for Linux/S390.
787 * Ulrich Drepper <drepper@redhat.com> implemented the setcontext family
788 of functions for Linux/x86.
790 * Port to Linux/CRIS contributed by Axis Communications.
791 \f
792 Version 2.2.2
794 * Lots of headers were cleaned up. Using the tool in the conform/ subdir
795 we can now check for namespace violations and missing declarations. The
796 result is that almost all headers are now Unix-compliant (as defined in
797 the upcoming XPG6). The negative side is that some programs might need
798 corrections, too, if they depend on the incorrect form of the headers in
799 previous versions which defined too many symbols and included too many
800 other headers.
802 * regex now handles multibyte character sets correctly.
803 Contributed by Isamu Hasegawa <isamu@yamato.ibm.com>.
805 * iconv (the program) does now conform to the upcoming XPG6 and handles
806 charmaps. Instead of the charset names the path of charmaps can be
807 provided and the conversion happens based on this data.
808 Contributed by Ulrich Drepper.
810 * The locale program now provides detailed information about the installed
811 locales. While
813 locale -a
815 only lists the names of the supported locales
817 locale -a --verbose
819 provides details such as country, language, and codeset name.
820 Contributed by Ulrich Drepper.
821 \f
822 Version 2.2.1
824 * The gencat program now parses the input file according to the charset
825 selected by the LC_CTYPE category. This is important for stateful
826 character sets. To make generating catalogs easier there is a way
827 to overwrite the charset selected by the locale: before the first
828 message or $ quote line the catalog can contain a line like
830 $ codeset=ISO-8859-2
832 to select the charset (ISO-8859-2 in this case).
834 Implemented by Shinya Hanataka and Ulrich Drepper.
836 * New codeset conversion modules: IBM-922 (Estonia PC codeset),
837 IBM-1124 (Ukraine PC codeset), IBM-1129 (Vietnamese PC codeset).
838 Contributed by Masahide Washizawa <washi@jp.ibm.com>.
840 * Optimized string functions for Alpha ev6 and ev67 by Richard Henderson
841 <rth@redhat.com> and Rick Gorton <rick.gorton@alpha-processor.com>.
843 * The LANGUAGE environment variable is now ignored unless the locale is
844 changed from the default "C" locale.
846 * The usual bug fixes.
847 \f
848 Version 2.2
850 * Greg McGary added runtime support for bounds checking using gcc's
851 new -fbounded-pointers option. ix86 target is complete. PowerPC
852 is in progress.
854 * Thorsten Kukuk added secure mode support to nscd.
856 * The Berkeley db libraries have been removed.
858 Related, the nss_db module is now in a separate package since it
859 obviously requires a database library being available.
861 * Wide character I/O streams implemented by Ulrich Drepper.
863 * Functions from the extended socket API added by Ulrich Drepper.
865 * Functions feenableexcept and fedisableexcept to control the
866 behaviour of individual exceptions have been added by Andreas Jaeger.
868 * ldconfig program added by Andreas Jaeger and Jakub Jelinek.
870 * The resolver code has been updated from bind 8.2.3-T5B which supports
871 threads. The integration was done by Andreas Jaeger, Adam D. Bradley,
872 and Mark Kettenis.
874 This change could in some situations effect backward compatibility. Since
875 now `_res' is a thread-local instead of a global variable, modifying it
876 in one thread does not have any effect in other threads.
878 The resolver library was also extended to allow IPv6 as the transport
879 protocol for the requests. This work was done by Stig Venaas.
881 * Compatibility code for K&R C compilers has been removed from the
882 header files. A ISO C compiler is needed to use the library
883 (conforming to either C89 or C99 standard).
885 * Complete rewrite of the localedef program to support multibyte character
886 sets. Implement handling of ISO 14651 and ISO 14652. Rewrite strcoll,
887 strxfrm, wcscoll, and wcsxfrm functions. Make isw*() functions work.
888 Implemented by Ulrich Drepper.
890 Bruno Haible significantly improved the generation and use of the data
891 structures for the wide character tables.
893 * Plural handling in gettext implemented by Ulrich Drepper.
895 * The utmp daemon has been removed.
897 * The port to MIPS-Linux has been finished by Andreas Jaeger.
899 * A port to Hitachi SH3 and SH4 has been contributed by Kazumoto Kojima
900 and Yutaka Niibe.
902 * POSIX clocks and timers implemented by Kaz Kylheku and Ulrich Drepper.
904 * POSIX barriers implemented by Kaz Kylheku.
906 * POSIX spawn function family implemented by Ulrich Drepper.
908 * POSIX spinlocks are now available.
910 * Timed wait functions for mutex, rwlock, and semaphores are implemented.
912 * the configure option --enable-kernel=X.Y.Z allows to strip out
913 compatibility for kernel versions before X.Y.Z. This is currently only
914 implemented for Linux.
916 * the sockaddr_in6 structure changed. The IPv6 working group added a new
917 field sin6_scope_id. This means that all programs using IPv6 should be
918 recompiled. Don't expect binary compatibility with previous glibc
919 versions.
921 * various conversion modules for IBM character sets contributed by
922 Masahide Washizawa.
924 * IA-64 port by Jes Sorensen and HJ Lu.
926 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
927 Compiling the GNU C Library for Linux/ia64
928 ******************************************
930 Please refer to the file INSTALL in the same directory as you found
931 this file for general information about configuring and compiling
932 glibc.
934 For general inquiries about glibc under Linux/ia64 please use the
935 following mailing list linux-ia64@linuxia64.org or one of the relevant
936 glibc mailing lists.
938 Recommended Tools for Compilation
939 =================================
941 In order for glibc-2.2 to build correctly on the ia64 you need at
942 least the following versions of the GNU tools (the :
944 * The Cygnus toolchain snapshot for the ia64 as of August 4
945 including the provided set of patches. It is however recommend
946 you use the October 24 toolchain snapshot or a more recent version.
948 OR alternatively you can try the following (the Cygnus toolchain is
949 the recommended solution):
951 * GCC and binutils, GAS and GNU LD out of CVS from
952 sources.redhat.com as of August 28, 2000 or later. The CVS tree
953 may require special patches to work properly on the ia64.
955 Configuring and compiling GNU Libc for Linux/ia64
956 =================================================
958 The library requires Linux kernel version 2.4.0-test4-000728 or
959 later to funtion properly. Besides that it support for debug libraries
960 is currently untested. Hence the following options
961 are required for configuring the library:
963 --disable-debug --enable-kernel=2.4.0
965 It is also important that you make sure the library picks up the
966 appropriate kernel header files, if you do not have recent enough
967 kernel headers in /usr/src/linux/include, you should use the
968 --with-headers=<path> option to specify the location.
970 As an example I personally use the following options to configure
971 the library:
973 --disable-debug
974 --disable-cvs
975 --enable-kernel=2.4.0
976 --host=ia64-linux
977 --enable-add-ons=yes
978 --prefix=/usr
979 --with-headers=/home/jes/linux/include
982 Good luck
984 Jes Sorensen <jes@linuxcare.com>,
985 November 14th, 2000
986 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
987 \f
988 Version 2.1.3
990 * bug fixes
992 \f
993 Version 2.1.2
995 * bug fixes
997 \f
998 Version 2.1.1
1000 * New ISO C 9x function _Exit, imaxabs, and imaxdiv are added.
1002 * New xdr functions are added; some rpc functions are now 64bit clean.
1004 * Fixed a number of bugs and memory leaks (especially in NIS+ code).
1006 * Fixed known incompatibilities with glibc 2.0.
1008 * New functions lock64, strchrnul, rawmemchr, getutmp and getutmpx.
1010 * Optimized a number of functions (especially the ELF dynamic loader).
1012 * Update timezone data files.
1014 * lots of charmaps corrections
1016 * some new locale definitions and charmaps
1018 \f
1019 Version 2.1
1021 * Richard Henderson corrected size of struct timeval on Linux/Alpha to
1022 conform to POSIX member type requirements. Symbol versions have been
1023 adjusted as needed within the library, and for direct use by applications,
1024 but there is potential for problems if third-party libraries use
1025 struct timeval as part of their interface. This does not present
1026 a problem for X and other "essential" system libraries.
1028 * An additional locale model to support C++ Standard Library locale
1029 model and probably more was implemented by Ulrich Drepper.
1031 * Eric Youngdale and Ulrich Drepper implemented versioning of objects on
1032 symbol level.
1034 * Miles Bader provided the `argp' function family to support hierachical
1035 command line argument parsing, layered on top of getopt.
1037 * strtod accepts new hexadecimal floating-point format from ISO C 9X.
1039 * printf has two new specifiers %a and %A to print hexadecimal flaoting-point
1040 numbers.
1042 * scanf recognizes the %a and %A format for scanning floating point numbers.
1044 * the new headers <stdint.h> and <inttypes.h> from ISO C 9X provides
1045 information and interfaces for the available integer types.
1047 * about 130 new math functions were added to implement the ISO C9x math
1048 library.
1050 * the new header <complex.h> contains definitions of the complex math
1051 functions from ISO C 9X.
1053 * the new header <tgmath.h> defines generic macros to use complex or
1054 real valued functions.
1056 * Thorsten Kukuk provided an implementation for NIS+, securelevel 0, 1 and 2.
1058 * Andreas Jaeger provided a test suite for the math library.
1060 * Mark Kettenis implemented the utmpx interface and an utmp daemon.
1062 * Ulrich Drepper added character set conversion functions (iconv).
1064 * Optimized string functions have been added.
1066 * The localedata addon is now part of glibc.
1068 * An implementation of profiling shared libraries was added by Ulrich Drepper.
1070 * Thorsten Kukuk and Ulrich Drepper provided an implementation for a caching
1071 daemon for NSS (nscd).
1073 Missing a better place here are some numbers on improvements. Under
1074 Linux 2.1.125 un-tar-ing the kernel sources takes
1076 user system wall
1078 using local files 12.19s 6.88s 22.91s
1080 using NIS 13.92s 8.91s 26.34s
1082 using NIS & nscd 10.37s 7.34s 25.30s
1084 using NIS+ 27.57s 30.37s 640.46s
1086 using NIS+ & nscd 10.25s 7.83s 26.51s
1088 using NIS & old nscd [1] 13.83s 8.32s 29.60s
1090 Keep in mind that non-namelookup related operations dominate above times.
1091 It was just a common complain that using NIS+ unpacking the kernel is
1092 horribly slow.
1094 [1] The old nscd implementation is not available anymore since it was
1095 distributed with glibc up to version 2.0.98 and thus is now replaced.
1097 * Tim Waugh provided an implementation of the POSIX.2 wordexp function family.
1099 * Mark Kettenis provided a Hesiod NSS module.
1101 * The ELF dynamic loader knows how to process dynamic string tokens ($ORIGIN
1102 and $PLATFORM) in RPATHs and similar strings (Ulrich Drepper).
1104 * rcmd can now handle netgroups (Dick Streefland).
1106 * A port to the ARM was contributed by Phil Blundell, Pat Beirne and Scott
1107 Bambrough.
1109 * Support for the IPv6 protocol has been added to the socket API, as per the
1110 latest draft standards.
1112 * Support for Linux 2.2 has been added.
1114 * Interface changes relative to the latest 2.0.x release:
1115 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1116 addseverity NEW: Unix98
1117 alphasort64 NEW: LFS
1118 argp_err_exit_status NEW: argp, GNU ext
1119 argp_error NEW: argp, GNU ext
1120 argp_failure NEW: argp, GNU ext
1121 argp_help NEW: argp, GNU ext
1122 argp_parse NEW: argp, GNU ext
1123 argp_program_bug_address NEW: argp, GNU ext
1124 argp_program_version NEW: argp, GNU ext
1125 argp_program_version_hook NEW: argp, GNU ext
1126 argp_state_help NEW: argp, GNU ext
1127 argp_usage NEW: argp, GNU ext
1128 authdes_create NEW: Secure RPC
1129 authdes_getucred NEW: Secure RPC
1130 authdes_pk_create NEW: Secure RPC
1131 backtrace NEW: GNU ext.
1132 backtrace_symbols NEW: GNU ext.
1133 backtrace_symbols_fd NEW: GNU ext.
1134 cacos NEW: ISO C 9x
1135 cacosf NEW: ISO C 9x
1136 cacosh NEW: ISO C 9x
1137 cacoshf NEW: ISO C 9x
1138 cacoshl NEW: ISO C 9x
1139 cacosl NEW: ISO C 9x
1140 capget NEW: kernel
1141 capset NEW: kernel
1142 carg NEW: ISO C 9x
1143 cargf NEW: ISO C 9x
1144 cargl NEW: ISO C 9x
1145 casin NEW: ISO C 9x
1146 casinf NEW: ISO C 9x
1147 casinh NEW: ISO C 9x
1148 casinhf NEW: ISO C 9x
1149 casinhl NEW: ISO C 9x
1150 casinl NEW: ISO C 9x
1151 catan NEW: ISO C 9x
1152 catanf NEW: ISO C 9x
1153 catanh NEW: ISO C 9x
1154 catanhf NEW: ISO C 9x
1155 catanhl NEW: ISO C 9x
1156 catanl NEW: ISO C 9x
1157 cbc_crypt NEW: Secure RPC
1158 ccos NEW: ISO C 9x
1159 ccosf NEW: ISO C 9x
1160 ccosh NEW: ISO C 9x
1161 ccoshf NEW: ISO C 9x
1162 ccoshl NEW: ISO C 9x
1163 ccosl NEW: ISO C 9x
1164 cexp NEW: ISO C 9x
1165 cexpf NEW: ISO C 9x
1166 cexpl NEW: ISO C 9x
1167 cimag NEW: ISO C 9x
1168 cimagf NEW: ISO C 9x
1169 cimagl NEW: ISO C 9x
1170 clearerr_locked REMOVED
1171 clntunix_create NEW: sunrpc ext
1172 clog NEW: ISO C 9x
1173 clog10 NEW: ISO C 9x
1174 clog10f NEW: ISO C 9x
1175 clog10l NEW: ISO C 9x
1176 clogf NEW: ISO C 9x
1177 clogl NEW: ISO C 9x
1178 conj NEW: ISO C 9x
1179 conjf NEW: ISO C 9x
1180 conjl NEW: ISO C 9x
1181 cpow NEW: ISO C 9x
1182 cpowf NEW: ISO C 9x
1183 cpowl NEW: ISO C 9x
1184 cproj NEW: ISO C 9x
1185 cprojf NEW: ISO C 9x
1186 cprojl NEW: ISO C 9x
1187 creal NEW: ISO C 9x
1188 crealf NEW: ISO C 9x
1189 creall NEW: ISO C 9x
1190 creat64 NEW: LFS
1191 csin NEW: ISO C 9x
1192 csinf NEW: ISO C 9x
1193 csinh NEW: ISO C 9x
1194 csinhf NEW: ISO C 9x
1195 csinhl NEW: ISO C 9x
1196 csinl NEW: ISO C 9x
1197 csqrt NEW: ISO C 9x
1198 csqrtf NEW: ISO C 9x
1199 csqrtl NEW: ISO C 9x
1200 ctan NEW: ISO C 9x
1201 ctanf NEW: ISO C 9x
1202 ctanh NEW: ISO C 9x
1203 ctanhf NEW: ISO C 9x
1204 ctanhl NEW: ISO C 9x
1205 ctanl NEW: ISO C 9x
1206 des_setparity NEW: Secure RPC
1207 ecb_crypt NEW: Secure RPC
1208 endutxent NEW: Unix98
1209 exp10 NEW: ISO C 9x
1210 exp10f NEW: ISO C 9x
1211 exp10l NEW: ISO C 9x
1212 exp2 NEW: ISO C 9x
1213 exp2f NEW: ISO C 9x
1214 exp2l NEW: ISO C 9x
1215 fattach NEW: STREAMS
1216 fdetach NEW: STREAMS
1217 fdim NEW: ISO C 9x
1218 fdimf NEW: ISO C 9x
1219 fdiml NEW: ISO C 9x
1220 feclearexcept NEW: ISO C 9x
1221 fegetenv NEW: ISO C 9x
1222 fegetexceptflag NEW: ISO C 9x
1223 fegetround NEW: ISO C 9x
1224 feholdexcept NEW: ISO C 9x
1225 feof_locked REMOVED
1226 feraiseexcept NEW: ISO C 9x
1227 ferror_locked REMOVED
1228 fesetenv NEW: ISO C 9x
1229 fesetexceptflag NEW: ISO C 9x
1230 fesetround NEW: ISO C 9x
1231 fetestexcept NEW: ISO C 9x
1232 feupdateenv NEW: ISO C 9x
1233 fflush_locked REMOVED
1234 ffsl NEW: GNU ext.
1235 ffsll NEW: GNU ext.
1236 fgetpos64 NEW: LFS
1237 fgets_unlocked NEW: GNU ext.
1238 fileno_locked REMOVED
1239 fma NEW: ISO C 9x
1240 fmaf NEW: ISO C 9x
1241 fmal NEW: ISO C 9x
1242 fmax NEW: ISO C 9x
1243 fmaxf NEW: ISO C 9x
1244 fmaxl NEW: ISO C 9x
1245 fmin NEW: ISO C 9x
1246 fminf NEW: ISO C 9x
1247 fminl NEW: ISO C 9x
1248 fmtmsg NEW: Unix98
1249 fopen64 NEW: LFS
1250 fputc_locked REMOVED
1251 fputs_unlocked NEW: GNU ext.
1252 fread_unlocked NEW: GNU ext.
1253 freopen64 NEW: LFS
1254 fseeko NEW: Unix98
1255 fsetpos64 NEW: LFS
1256 fstatfs64 NEW: LFS
1257 fstatvfs NEW: Unix98
1258 fstatvfs64 NEW: LFS
1259 ftello NEW: Unix98
1260 ftello64 NEW: LFS
1261 ftruncate64 NEW: LFS
1262 ftw64 NEW: LFS
1263 fwrite_unlocked NEW: GNU ext.
1264 gai_strerror NEW: IPv6
1265 gamma_r REMOVED
1266 gammaf_r REMOVED
1267 gammal_r REMOVED
1268 getchar_locked REMOVED
1269 getdate NEW: Unix98
1270 getdate_err NEW: Unix98
1271 getdate_r NEW: GNU ext.
1272 getmsg NEW: STREAMS
1273 getnameinfo NEW: IPv6
1274 getnetname NEW: Secure RPC
1275 getpmsg NEW: STREAMS
1276 getpt NEW: Unix98 PTY
1277 getrlimit64 NEW: LFS
1278 getutxent NEW: Unix98
1279 getutxid NEW: Unix98
1280 getutxline NEW: Unix98
1281 glob64 NEW: GNU ext.
1282 globfree64 NEW: GNU ext.
1283 gnu_get_libc_release NEW: GNU ext.
1284 gnu_get_libc_version NEW: GNU ext.
1285 grantpt NEW: Unix98 PTY
1286 host2netname NEW: Secure RPC
1287 iconv NEW: iconv
1288 iconv_close NEW: iconv
1289 iconv_open NEW: iconv
1290 if_freenameindex NEW: IPv6
1291 if_indextoname NEW: IPv6
1292 if_nameindex NEW: IPv6
1293 if_nametoindex NEW: IPv6
1294 in6addr_any NEW: IPv6
1295 in6addr_loopback NEW: IPv6
1296 inet6_isipv4mapped NEW: IPv6
1297 isastream NEW: STREAMS
1298 iswblank NEW: GNU ext.
1299 key_decryptsession NEW: Secure RPC
1300 key_decryptsession_pk NEW: Secure RPC
1301 key_encryptsession NEW: Secure RPC
1302 key_encryptsession_pk NEW: Secure RPC
1303 key_gendes NEW: Secure RPC
1304 key_get_conv NEW: Secure RPC
1305 key_secretkey_is_set NEW: Secure RPC
1306 key_setnet NEW: Secure RPC
1307 key_setsecret NEW: Secure RPC
1308 llrint NEW: ISO C 9x
1309 llrintf NEW: ISO C 9x
1310 llrintl NEW: ISO C 9x
1311 llround NEW: ISO C 9x
1312 llroundf NEW: ISO C 9x
1313 llroundl NEW: ISO C 9x
1314 log2 NEW: ISO C 9x
1315 log2f NEW: ISO C 9x
1316 log2l NEW: ISO C 9x
1317 lrint NEW: ISO C 9x
1318 lrintf NEW: ISO C 9x
1319 lrintl NEW: ISO C 9x
1320 lround NEW: ISO C 9x
1321 lroundf NEW: ISO C 9x
1322 lroundl NEW: ISO C 9x
1323 lseek64 NEW: LFS
1324 makecontext NEW: Unix98
1325 mempcpy NEW: GNU ext.
1326 mmap64 NEW: LFS
1327 moncontrol REMOVED
1328 modify_ldt NEW: kernel
1329 nan NEW: ISO C 9x
1330 nanf NEW: ISO C 9x
1331 nanl NEW: ISO C 9x
1332 nearbyint NEW: ISO C 9x
1333 nearbyintf NEW: ISO C 9x
1334 nearbyintl NEW: ISO C 9x
1335 netname2host NEW: Secure RPC
1336 netname2user NEW: Secure RPC
1337 nexttoward NEW: ISO C 9x
1338 nexttowardf NEW: ISO C 9x
1339 nexttowardl NEW: ISO C 9x
1340 nftw NEW: Unix98
1341 nftw64 NEW: LFS
1342 open64 NEW: LFS
1343 passwd2des NEW: Secure RPC
1344 pow10 NEW: GNU ext.
1345 pow10f NEW: GNU ext.
1346 pow10l NEW: GNU ext.
1347 pread NEW: Unix98
1348 pread64 NEW: LFS
1349 printf_size NEW: GNU ext.
1350 printf_size_info NEW: GNU ext.
1351 profil_counter REMOVED
1352 pthread_mutexattr_getkind_np REPLACED
1353 pthread_mutexattr_setkind_np REPLACED
1354 ptsname NEW: Unix98 PTY
1355 ptsname_r NEW: Unix98 PTY
1356 putc_locked REMOVED
1357 putchar_locked REMOVED
1358 putgrent NEW: GNU ext.
1359 putmsg NEW: STREAMS
1360 putpmsg NEW: STREAMS
1361 pututxline NEW: Unix98
1362 pwrite NEW: Unix98
1363 pwrite64 NEW: LFS
1364 readdir64 NEW: LFS
1365 readdir64_r NEW: LFS
1366 remquo NEW: ISO C 9x
1367 remquof NEW: ISO C 9x
1368 remquol NEW: ISO C 9x
1369 round NEW: ISO C 9x
1370 roundf NEW: ISO C 9x
1371 roundl NEW: ISO C 9x
1372 rtime NEW: GNU ext.
1373 scalbln NEW: ISO C 9x
1374 scalblnf NEW: ISO C 9x
1375 scalblnl NEW: ISO C 9x
1376 scandir64 NEW: LFS
1377 sendfile NEW: kernel
1378 setcontext NEW: Unix98
1379 setrlimit64 NEW: LFS
1380 setutxent NEW: Unix98
1381 sighold NEW: Unix98
1382 sigignore NEW: Unix98
1383 sigqueue NEW: POSIX.1b
1384 sigrelse NEW: Unix98
1385 sigset NEW: POSIX.1b
1386 sigtimedwait NEW: POSIX.1b
1387 sigwaitinfo NEW: POSIX.1b
1388 sincos NEW: GNU ext.
1389 sincosf NEW: GNU ext.
1390 sincosl NEW: GNU ext.
1391 statfs64 NEW: LFS
1392 statvfs NEW: Unix98
1393 statvfs64 NEW: LFS
1394 strcasestr NEW: GNU ext.
1395 strtoimax NEW: ISO C 9x
1396 strtoumax NEW: ISO C 9x
1397 strverscmp NEW: GNU ext.
1398 svcauthdes_stats NEW: Secure RPC
1399 svcunix_create NEW: sunrpc etx
1400 svcunixfd_create NEW: sunrpc ext
1401 swapcontext NEW: Unix98
1402 tcgetsid NEW: Unix98 PTY
1403 tdestroy NEW: GNU ext.
1404 tgamma NEW: ISO C 9x
1405 tgammaf NEW: ISO C 9x
1406 tgammal NEW: ISO C 9x
1407 tmpfile64 NEW: LFS
1408 trunc NEW: ISO C 9x
1409 truncate64 NEW: LFS
1410 truncf NEW: ISO C 9x
1411 truncl NEW: ISO C 9x
1412 umount2 NEW: kernel
1413 unlockpt NEW: Unix98 PTY
1414 updwtmpx NEW: Unix98
1415 user2netname NEW: Secure RPC
1416 utmpxname NEW: Unix98
1417 versionsort NEW: GNU ext.
1418 versionsort64 NEW: GNU ext.
1419 waitid NEW: Unix98
1420 wcscasecmp NEW: GNU ext.
1421 wcsncasecmp NEW: GNU ext.
1422 wcsnlen NEW: GNU ext.
1423 wcstoimax NEW: ISO C 9x
1424 wcstoll NEW: ISO C 9x
1425 wcstoull NEW: ISO C 9x
1426 wcstoumax NEW: ISO C 9x
1427 wcswcs NEW: Unix98
1428 wordexp NEW: POSIX.2
1429 wordfree NEW: POSIX.2
1430 write_profiling REMOVED
1431 xdecrypt NEW: Secure RPC
1432 xdr_authdes_cred NEW: Secure RPC
1433 xdr_authdes_verf NEW: Secure RPC
1434 xdr_cryptkeyarg NEW: Secure RPC
1435 xdr_cryptkeyarg2 NEW: Secure RPC
1436 xdr_cryptkeyres NEW: Secure RPC
1437 xdr_getcredres NEW: Secure RPC
1438 xdr_key_netstarg NEW: Secure RPC
1439 xdr_key_netstres NEW: Secure RPC
1440 xdr_keybuf NEW: Secure RPC
1441 xdr_keystatus NEW: Secure RPC
1442 xdr_netnamestr NEW: Secure RPC
1443 xdr_sizeof NEW: Secure RPC
1444 xdr_unixcred NEW: sunrpc ext
1445 xencrypt NEW: Secure RPC
1446 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1447 \f
1448 Version 2.0.6
1450 * more bug fixes
1452 \f
1453 Version 2.0.5
1455 * more bug fixes
1457 * inet_ntoa is thread-safe
1459 * updwtmp is moved from libutil to libc
1461 * rewrite of cbrt function
1463 * update of timezone data
1464 \f
1465 Version 2.0.4
1467 * more bug fixes
1468 \f
1469 Version 2.0.3
1471 * more bug fixes
1472 \f
1473 Version 2.0.2
1475 * more bug fixes
1477 * add atoll function
1479 * fix complex problems in Berkeley DB code
1481 * fix math functions
1482 \f
1483 Version 2.0.1
1485 * fixed lots of header problems (especially Linux/GNU specific)
1487 * dynamic loader preserves all registers
1489 * Roland McGrath provided support for handling of auxiliary objects in
1490 the ELF dynamic loader.
1492 * support for parallel builds is improved
1493 \f
1494 Version 2.0
1496 * GNU extensions are no longer declared by default. To enable them you
1497 must define the macro `_GNU_SOURCE' in your program or compile with
1498 `-D_GNU_SOURCE'.
1500 * The library has changed from using GNU ld symbol aliases to using weak
1501 symbols where available. The ELF object file format supports weak
1502 symbols; GNU ld also supports weak symbols in the a.out format. (There
1503 is also now support for other GNU ld extensions in ELF. Use the
1504 `--with-elf' option to configure to indicate you have ELF, and
1505 `--with-gnu-ld' if using GNU ld.) This change resulted in the deletion
1506 of many files which contained only symbol aliases, reducing the size of
1507 the source and the compiled library; many other files were renamed to
1508 less cryptic names previously occupied by the symbol alias files.
1509 There is a new header file <elf.h> for programs which operate on
1510 files in the ELF format.
1512 * Converted to Autoconf version 2, so `configure' has more options.
1513 Run `configure --help' to see the details.
1515 * The library can now be configured to build profiling, highly-optimized
1516 (but undebuggable), and/or shared libraries (ELF with GNU ld only). The
1517 `--enable-profile', `--enable-omitfp', and `--enable-shared' options to
1518 `configure' enable building these extra libraries. The shared library is
1519 built by default when using both ELF and GNU ld. When shared libraries
1520 are enabled, the new library `-ldl' is available for arbitrary run-time
1521 loading of shared objects; its interface is defined in <dlfcn.h>. The
1522 new header file <link.h> gives access to the internals of the run-time
1523 dynamic linker, `ld.so'. The shell script `ldd' is similar to the
1524 application of same name on other systems and it provides information
1525 about dynamically linked binaries.
1527 * The C library now provides the run-time support code for profiling
1528 executables compiled with `-pg'. Programs can control the profiling code
1529 through the interface in <sys/gmon.h>. The `gmon.out' files written by
1530 the GNU C library can be read only by GNU `gprof' (from GNU binutils);
1531 the support for this file format was contributed by David Mosberger-Tang.
1533 * The math code has been replaced with a math library based on fdlibm from
1534 Sun, and modified by JT Conklin and Ulrich Drepper with i387 support, by
1535 Ian Taylor with `float' functions and by Ulrich Drepper with `long double'
1536 functions. The math functions now reside in a separate library, so
1537 programs using them will need to use `-lm' their linking commands.
1539 * John C. Bowman contributed optimized ix87 assembler inline functions.
1541 * Ulrich Drepper has contributed support for an `/etc/nsswitch.conf'
1542 mechanism similar to that found in Solaris 2. This is now used for the
1543 group, passwd, hosts, networks, services, protocols, rpc, ethers,
1544 shadow, netgroup, publickey, and alias databases. The `nsswitch.conf'
1545 file controls what services are used for each individual database. This
1546 works by loading shared libraries with names specified in `nsswitch.conf',
1547 so service modules can be changed or added at any time without even
1548 relinking any program. Currently there are the file, db, and NIS based
1549 NSS services available.
1551 * The new functions `strtoq' and `strtouq' parse integer values from
1552 strings, like `strtol' and `strtoul', but they return `long long int' and
1553 `unsigned long long int' values, respectively (64-bit quantities).
1555 * The new functions `strtof' and `strtold' parse floating-point values from
1556 strings, like `strtod', but they return `float' and `long double' values,
1557 respectively (on some machines `double' and `long double' are the same).
1559 * Ulrich Drepper has contributed new implementations of the floating-point
1560 printing and reading code used in the `printf' family of functions and
1561 `strtod', `strtof', and `strtold'. These new functions are perfectly
1562 accurate, and much faster than the old ones.
1564 * The implementation of the POSIX locale model was completely rewritten by
1565 Ulrich Drepper. This includes the new programs `localedef' and `locale'
1566 to compile the POSIX locale definition.
1568 * The former dummy implementations of the strcoll and strxfrm function are
1569 now replaced by fully functional code contributed by Ulrich Drepper. The
1570 collation information comes from the POSIX locale definitions.
1572 * The new header <langinfo.h> defines an interface for accessing
1573 various locale-dependent data (using the locale chosen with `setlocale').
1575 * Ulrich Drepper has contributed a new suite of functions for operation on
1576 wide-character and multibyte-character strings, in <wchar.h>;
1577 and classification and case conversion of wide characters, in <wctype.h>.
1578 These new functions are conforming to the ISO C, Amendement 1 specification.
1580 * There is now a second implementation of the standard I/O library available.
1581 It comes from GNU libg++ as was written by Per Bothner, heavily modified
1582 by Hongjiu Lu and made thread safe by Ulrich Drepper.
1584 * You can now use positional parameter specifications in format strings
1585 for the `printf' and `scanf' families of functions. For example,
1586 `printf ("Number %2$d, Mr %1$s\n", "Jones", 6);'' prints
1587 ``Number 6, Mr Jones''. This is mainly useful when providing different
1588 format strings for different languages, whose grammars may dictate
1589 different orderings of the values being printed. To support this
1590 feature, the interface for `register_printf_handler' has changed; see
1591 the header file <printf.h> for details.
1593 * The `printf' and `scanf' families of functions now understand a new
1594 formatting flag for numeric conversions: the ' flag (e.g. %'d or %'f) says
1595 to group numbers as indicated by the locale; for `scanf' and friends, this
1596 says to accept as valid only a number with all the proper grouping
1597 separators in the right places. In the default "C" locale, numbers are
1598 not grouped; but locales for specific countries will define the usual
1599 conventions (i.e. separate thousands with `,' in the US locale).
1601 * The pgrp functions have been regularized, slightly incompatibly but much
1602 less confusingly. The core functions are now `getpgid' and `setpgid',
1603 which take arguments for the PID to operate on; the POSIX.1 `getpgrp' (no
1604 argument) and BSD `setpgrp' (identical to `setpgid') functions are
1605 provided for compatibility. There is no longer an incompatible `getpgrp'
1606 with an argument declared under _BSD_SOURCE; no BSD code uses it.
1608 * The new header file <fts.h> and suite of functions simplify programs that
1609 operate on directory trees. This code comes from 4.4 BSD.
1611 * The resolver code has been updated from the BIND 4.9.5-P1 release.
1612 Parts of the code were heavily modified by Ulrich Drepper to fit in the
1613 NSS scheme used in glibc.
1615 * There is a new malloc debugging hook `__memalign_hook'.
1617 * There are new typedefs `ushort' for `unsigned short int' and `uint' for
1618 `unsigned int' in <sys/types.h>. These are for compatibility only and
1619 their use is discouraged.
1621 * The `-lmcheck' library to enable standard malloc debugging hooks is now
1622 done differently, so that it works even without GNU ld.
1624 * New function `euidaccess' checks allowed access to a file like `access',
1625 but using the effective IDs instead of the real IDs.
1627 * The time zone data files have been updated for the latest and greatest
1628 local time conventions of the countries of the world.
1630 * The new function `dirfd' extracts the file descriptor used by a DIR stream;
1631 see <dirent.h>.
1633 * The new functions `ecvt', `fcvt', and `gcvt' provide an obsolete interface
1634 for formatting floating-point numbers. They are provided only for
1635 compatibility; new programs should use `sprintf' instead. There are
1636 also equivalent function for the `long double' floating-point type and
1637 all functions also exist in a reentrant form.
1639 * The new auxiliary library `-lutil' from 4.4 BSD contains various
1640 functions for maintaining the login-record files (primarily of use to
1641 system programs such as `login'), and convenient functions for
1642 allocating and initializing a pseudo-terminal (pty) device.
1644 * Ulrich Drepper has contributed new support for System V style
1645 shared memory and IPC on systems that support it.
1647 * Ulrich Drepper has contributed several miscellaneous new functions found
1648 in System V: The `hsearch' family of functions provide an effective
1649 implementation of hash tables; `a64l' and `l64a' provide a very simple
1650 binary to ASCII mapping; `drand48' and friends provide a 48-bit random
1651 number generator.
1653 * Ulrich Drepper has contributed new reentrant counterparts for the
1654 `random' and `hsearch' families of functions; `random_r', `hsearch_r', etc.
1656 * Ulrich Drepper has contributed new, highly-optimized versions of several
1657 string functions for the i486/Pentium family of processors.
1659 * Ulrich Drepper has updated the Linux-specific code, based largely
1660 on work done in Hongjiu Lu's version of GNU libc for Linux.
1661 The GNU library now supports Linux versions 2.0.10 and later,
1662 using the ELF object file format (i[3456]86-*-linux).
1664 * Andreas Schwab has ported the C library to Linux/m68k (m68k-*-linux).
1666 * David Mosberger-Tang and Richard Henderson have ported the C library
1667 to Linux/Alpha (alpha-*-linux). Richard Henderson contributed the
1668 dynamic linking support for ELF/Alpha.
1670 * Richard Henderson contributed several Alpha optimized assembler function
1671 for arithmetic and string handling.
1673 * Ulrich Drepper has contributed a new set of message catalog functions to
1674 support multiple languages using the <libintl.h> interface, for use with
1675 his new package GNU gettext. Translation volunteers have contributed
1676 catalogs of the library's messages in Spanish, German, and Korean.
1678 * For compatibility with XPG4, Ulrich Drepper has contributed the `gencat'
1679 program and the `catgets' function for reading the catalog files it
1680 creates. (The <libintl.h> interface is preferred; we include the
1681 <nl_types.h> interface using `catgets' only for source compatibility with
1682 programs already written to use it.)
1684 * New header file <values.h> gives SVID-compatible names for <limits.h>
1685 constants.
1687 * Various new macros, declarations, and small header files for compatibility
1688 with 4.4 BSD.
1690 * New function `group_member' is a convenient way to check if a process has
1691 a given effective group ID.
1693 * When using GCC 2.7 and later, the socket functions are now declared in a
1694 special way so that passing an argument of type `struct sockaddr_in *',
1695 `struct sockaddr_ns *', or `struct sockaddr_un *' instead of the generic
1696 `struct sockaddr *' type, does not generate a type-clash warning.
1698 * New function `error' declared in header file <error.h> is a convenient
1699 function for printing error messages and optionally exiting; this is the
1700 canonical function used in GNU programs. The new functions `err', `warn',
1701 and friends in header file <err.h> are the canonical 4.4 BSD interface for
1702 doing the same thing.
1704 * The <glob.h> interface has several new flags from 4.4 BSD that extend the
1705 POSIX.2 `glob' function to do ~ and {...} expansion.
1707 * New function `unsetenv' complements `setenv' for compatibility with 4.4 BSD.
1708 `clearenv' which is used in POSIX.9 is also available.
1710 * New function `getsid' returns session ID number on systems that support it.
1712 * We have incorporated the 4.4 BSD `db' library (version 1.85). New header
1713 files <db.h> and <mpool.h> provide a rich set of functions for several
1714 types of simple databases stored in memory and in files, and <ndbm.h> is
1715 an old `ndbm'-compatible interface using the `db' functions. Link with
1716 `-ldb' to get these functions.
1718 * New macro `strdupa' copies a string like `strdup', but uses local stack
1719 space from `alloca' instead of dynamic heap space from `malloc'.
1721 * New function `strnlen' is like `strlen' but searches only a given maximum
1722 number of characters for the null terminator. `stpncpy', `strndup' and
1723 `strndupa' are similar variants for the `stpcpy', `strdup' and `strdupa'
1724 function.
1726 * New function `statfs' in header <sys/statfs.h>.
1728 * The new <argz.h> and <envz.h> interfaces contributed by Miles Bader
1729 provide convenient functions for operating on blocks of null-terminated
1730 strings.
1732 * A new suite of functions in <utmp.h> handle all the details of reading
1733 and writing the utmp file.
1735 * An implementation of the NIS/YP(tm) based NSS service was contributed by
1736 Thorsten Kukuk.
1738 * Paul Eggert and Ulrich Drepper modified the `strftime' function to be
1739 completely POSIX compliant and also implemented the extended functionality
1740 to handle alternate digit representation and alternate era date formats.
1742 * Ulrich Drepper provided an implementation of the `strptime' function
1743 defined in XPG4.2 which transforms a string into a `struct tm' value.
1745 * Paul Eggert provided the tzselect shell script as part of the timezone
1746 code. The shell script makes it easy to select the correct timezone
1747 specification.
1749 * The implementation of the malloc family of functions is completely replaced
1750 by a new implementation by Doug Lea with many improvements by Wolfram Gloger.
1751 The implementation uses the mmap function (if available) and it is
1752 optimized for the use in multi threaded programs.
1754 * Ulrich Drepper contributed a MD5 "encryption" for the crypt family of
1755 functions. This new functionality is usable by specifying a special
1756 salt string and it is compatible with implementation on *BSD systems.
1758 * Lots of functions from the XPG4.2 standard were added by Ulrich Drepper:
1759 `getsubopt' to handle second level command line options, `bsd_signal'
1760 to access BSD style `signal' functionality, the obsolete `regexp' style
1761 expression matcher.
1763 * the `lchown' function is available on system which support this
1764 functionality.
1766 * The implementation of the shadow password handling function was contributed
1767 by Ulrich Drepper.
1769 * David Mosberger-Tang changed the SunRPC implementation to be 64bit safe.
1771 * POSIX.1g support was added. The <sys/select.h> header is available,
1772 `isfdtype' and `pselect' are implemented. Craig Metz contributed an
1773 implementation of `getaddrinfo'.
1774 \f
1775 Version 1.09
1777 * For cross-compilation you should now set `BUILD_CC' instead of `HOST_CC'.
1779 * New header file <fstab.h> and new functions `getfsspec', `getfsent' and
1780 friends, for parsing /etc/fstab. This code comes from 4.4 BSD.
1782 * The new function `daemon' from 4.4 BSD is useful for server programs that
1783 want to put themselves in the background.
1785 * Joel Sherrill has contributed support for several standalone boards that
1786 run without an operating system.
1788 * `printf', `scanf' and friends now accept a `q' type modifier for long
1789 long int as well as `ll'. Formats using these might be `%qu' or `%lld'.
1791 * All of the code taken from BSD (notably most of the math and networking
1792 routines) has been updated from the BSD 4.4-Lite release.
1794 * The resolver code has been updated from the BIND-4.9.3-BETA9 release.
1796 * The new functions `getdomainname' and `setdomainname' fetch or change the
1797 YP/NIS domain name. These are system calls which exist on systems which
1798 have YP (aka NIS).
1800 * The time zone data files have been updated for the latest international
1801 conventions.
1803 * The SunRPC programs `portmap' and `rpcinfo' are now installed in
1804 $(sbindir) (usually /usr/local/sbin) instead of $(bindir).
1805 \f
1806 Version 1.08
1808 * The C library now includes support for Sun RPC, from Sun's free
1809 RPCSRC-4.0 distribution. The `portmap', `rpcinfo', and `rpcgen' programs
1810 are included. (There is still no support for YP.)
1812 * Tom Quinn has contributed a port of the C library to SGI machines running
1813 Irix 4 (mips-sgi-irix4).
1815 * The new `lockf' function is a simplified interface to the locking
1816 facilities of `fcntl', included for compatibility.
1818 * New time functions `timegm', `timelocal', and `dysize' for compatibility.
1820 * New header file <sys/timeb.h> and new function `ftime' for compatibility.
1822 * New header files <poll.h> and <sys/poll.h> and new function `poll' for
1823 compatibility.
1825 * The error message printed by `assert' for a failed assertion now includes
1826 the name of the program (if using GNU ld) and the name of the calling
1827 function (with versions of GCC that support this).
1829 * The `psignal' function is now declared in <signal.h>, not <stdio.h>.
1831 * The library now includes the <sys/mman.h> header file and memory
1832 management functions `mmap', `munmap', `mprotect', `msync', and
1833 `madvise', on systems that support those facilities.
1835 * The interface for `mcheck' has changed slightly: the function called to
1836 abort the program when an allocation inconsistency is detected now takes
1837 an argument that indicates the type of failure. The new function
1838 `mprobe' lets you request a consistency check for a particular block at
1839 any time (checks are normally done only when you call `free' or `realloc'
1840 on a block).
1842 * It is now possible to easily cross-compile the C library, building on one
1843 system a library to run on another machine and/or operating system. All
1844 you need to do is set the variable `HOST_CC' in `configparms' to the
1845 native compiler for programs to run on the machine you are building on (a
1846 few generator programs are used on Unix systems); set `CC' to the
1847 cross-compiler.
1849 * The new function `fexecve' (only implemented on the GNU system) executes
1850 a program file given a file descriptor already open on the file.
1851 \f
1852 Version 1.07
1854 * Brendan Kehoe has contributed most of a port to the DEC Alpha
1855 running OSF/1 (alpha-dec-osf1). He says it is 75% complete.
1857 * You can set the variable `libprefix' in `configparms' to specify a prefix
1858 to be prepended to installed library files; this makes it easy to install
1859 the GNU C library to be linked as `-lgnuc' or whatever.
1861 * The new `stpncpy' is a cross between `stpcpy' and `strncpy': It
1862 copies a limited number of characters from a string, and returns the
1863 address of the last character written.
1865 * You no longer need to check for whether the installed `stddef.h' is
1866 compatible with the GNU C library. configure now checks for you.
1868 * You can now define a per-stream `fileno' function to convert the
1869 stream's cookie into an integral file descriptor.
1871 * ``malloc (0)'' no longer returns a null pointer. Instead, it
1872 allocates zero bytes of storage, and returns a unique pointer which
1873 you can pass to `realloc' or `free'. The behavior is undefined if
1874 you dereference this pointer.
1876 * The C library now runs on Sony NEWS m68k machines running either
1877 NewsOS 3 or NewsOS 4.
1879 * The new `syscall' function is a system-dependent primitive function
1880 for invoking system calls. It has the canonical behavior on Unix
1881 systems, including unreliable return values for some calls (such as
1882 `pipe', `fork' and `getppid').
1884 * The error code `EWOULDBLOCK' is now obsolete; it is always defined
1885 to `EAGAIN', which is the preferred name. On systems whose kernels
1886 use two distinct codes, the C library now translates EWOULDBLOCK to
1887 EAGAIN in every system call function.
1888 \f
1889 Version 1.06
1891 * The GNU C Library Reference Manual is now distributed with the library.
1892 `make dvi' will produce a DVI file of the printed manual.
1893 `make info' will produce Info files that you can read on line using C-h i
1894 in Emacs or the `info' program.
1895 Please send comments on the manual to bug-glibc-manual@gnu.org.
1897 * The library now supports SVR4 on i386s (i386-unknown-sysv4).
1899 * Brendan Kehoe has contributed a port to Sun SPARCs running Solaris 2.
1901 * Jason Merrill has contributed a port to the Sequent Symmetry running
1902 Dynix version 3 (i386-sequent-dynix).
1904 * The library has been ported to i386s running SCO 3.2.4 (also known as SCO
1905 ODT 2.0; i386-unknown-sco3.2.4) or SCO 3.2 (i386-unknown-sco3.2).
1907 * New function `memory_warnings' lets you arrange to get warnings when
1908 malloc is running out of memory to allocate, like Emacs gives you.
1910 * The C library now contains the relocating allocator used in Emacs 19 for
1911 its editing buffers. This allocator (ralloc) minimizes allocation
1912 overhead and fragmentation by moving allocated regions around whenever it
1913 needs to. You always refer to a ralloc'd region with a "handle" (a
1914 pointer to a pointer--an object of type `void **').
1916 * There is a new `printf' format: `%m' gives you the string corresponding
1917 to the error code in `errno'.
1919 * In `scanf' formats, you can now use `%as' or `%a[' to do the normal `%s'
1920 or `%[' conversion, but instead of filling in a fixed-sized buffer you
1921 pass, the `a' modifier says to fill in a `char **' you pass with a
1922 malloc'd string.
1924 * The `fnmatch' function supports the new flag bits `FNM_LEADING_DIR' and
1925 `FNM_CASEFOLD'. `FNM_LEADING_DIR' lets a pattern like `foo*' match a
1926 name like `foo/bar'. `FNM_CASEFOLD' says to ignore case in matching.
1928 * `mkstemp' is a traditional Unix function to atomically create and open a
1929 uniquely-named temporary file.
1930 \f
1931 Version 1.05
1933 * The standard location for the file that says what the local timezone is
1934 has changed again. It is now `/usr/local/etc/localtime' (or more
1935 precisely, `${prefix}/etc/localtime') rather than `/etc/localtime'.
1937 * The distribution no longer contains any files with names longer than 14
1938 characters.
1940 * `struct ttyent' has two new flag bits: TTY_TRUSTED and TTY_CONSOLE.
1941 These are set by the new `trusted' and `console' keywords in `/etc/ttys'.
1943 * New functions `ttyslot' and `syslog' from 4.4 BSD.
1944 \f
1945 Version 1.04
1947 * The configuration process has changed quite a bit. The `configure'
1948 script is now used just like the configuration scripts for other GNU
1949 packages. The `sysdeps' directory hierarchy is much rearranged.
1950 The file `INSTALL' explains the new scheme in detail.
1952 * The header files no longer need to be processed into ANSI C and
1953 traditional C versions. There is just one set of files to install, and
1954 it will work with ANSI or old C compilers (including `gcc -traditional').
1956 * Brendan Kehoe and Ian Lance Taylor have ported the library to the
1957 MIPS DECStation running Ultrix 4.
1959 * The Sun 4 startup code (crt0) can now properly load SunOS 4 shared libraries.
1960 Tom Quinn contributed the initial code. The GNU C library can NOT yet be
1961 made itself into a shared library.
1963 * Yet further improved support for the i386, running 4.3 BSD-like systems
1964 (such as Mach 3 with the Unix single-server), or System V.
1966 * New function `strncasecmp' to do case-insensitive string comparison
1967 with limited length.
1969 * New function `strsep' is a reentrant alternative to `strtok'.
1971 * New functions `scandir' and `alphasort' for searching directories.
1973 * New function `setenv' is a better interface to `putenv'.
1975 * Ian Lance Taylor has contributed an implementation of the SVID `ftw'
1976 function for traversing a directory tree.
1978 * The GNU obstack package is now also part of the C library.
1979 The new function `open_obstack_stream' creates a stdio stream that
1980 writes onto an obstack; `obstack_printf' and `obstack_vprintf' do
1981 formatted output directly to an obstack.
1983 * Miscellaneous new functions: reboot, nice, sigaltstack (4.4 BSD only),
1984 cfmakeraw, getusershell, getpass, swab, getttyent, seteuid, setegid.
1986 * `FNM_FILE_NAME' is another name for `FNM_PATHNAME', used with `fnmatch'.
1988 * The new functions `strfry' and `memfrob' do mysterious and wonderful
1989 things to your strings.
1991 * There are some new test programs: test-fseek, testmb, and testrand.
1993 * Some work has been done to begin porting the library to 4.4 BSD and Linux.
1994 These ports are not finished, but are a good starting place for really
1995 supporting those systems.
1997 * `/etc/localtime' is now the standard location for the file that says what
1998 the local timezone is, rather than `/usr/local/lib/zoneinfo/localtime'.
1999 This follows the general principle that `/etc' is the place for all local
2000 configuration files.
2002 * The C library header files now use `extern "C"' when used by the C++
2003 compiler, so the C library should now work with C++ code.
2005 * The header file <bstring.h> is gone. <string.h> now declares bcopy,
2006 bcmp, bzero, and ffs. (Update: nowadays these functions are declared
2007 in <strings.h>.)
2009 * Mike Haertel (of GNU e?grep and malloc fame) has written a new sorting
2010 function which uses the `merge sort' algorithm, and is said to be
2011 significantly faster than the old GNU `qsort' function. Merge sort is
2012 now the standard `qsort' function. The new algorithm can require a lot
2013 of temporary storage; so, the old sorting function is called when the
2014 required storage is not available.
2016 * The C library now includes Michael Glad's Ultra Fast Crypt, which
2017 provides the Unix `crypt' function, plus some other entry points.
2019 * The code and header files taken from 4.4 BSD have been updated with the
2020 latest files released from Berkeley.
2021 \f
2022 ----------------------------------------------------------------------
2023 Copyright information:
2025 Copyright (C) 1992-2009, 2010, 2011 Free Software Foundation, Inc.
2027 Permission is granted to anyone to make or distribute verbatim copies
2028 of this document as received, in any medium, provided that the
2029 copyright notice and this permission notice are preserved,
2030 thus giving the recipient permission to redistribute in turn.
2032 Permission is granted to distribute modified versions
2033 of this document, or of portions of it,
2034 under the above conditions, provided also that they
2035 carry prominent notices stating who last changed them.
2036 \f
2037 Local variables:
2038 version-control: never
2039 fill-column: 76
2040 End: