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1 GNU C Library NEWS -- history of user-visible changes. 2011-12-23
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 2.16
10 * The following bugs are resolved with this release:
12 13526, 13528, 13529
14 \f
15 Version 2.15
17 * The following bugs are resolved with this release:
19 6779, 6783, 9696, 10103, 10709, 11589, 12403, 12786, 12840, 12847, 12868,
20 12852, 12874, 12885, 12892, 12906, 12907, 12922, 12935, 12962, 13007,
21 13021, 13061, 13062, 13067, 13068, 13085, 13088, 13090, 13092, 13096,
22 13114, 13118, 13123, 13134, 13138, 13147, 13150, 13166, 13179, 13185,
23 13189, 13192, 13268, 13276, 13282, 13291, 13305, 13328, 13335, 13337,
24 13344, 13358, 13367, 13413, 13416, 13423, 13439, 13446, 13472, 13484,
25 13506, 13515, 13523, 13524, 13538, 13540
27 * New program pldd to list loaded object of a process
28 Implemented by Ulrich Drepper.
30 * Add nss_db support back to glibc. No more dependency on Berkeley db
31 and support for initgroups lookups.
32 Implemented by Ulrich Drepper.
34 * Optimized strcpy, strncpy, stpcpy, stpncpy for SSE2 and SSSE3 on x86-32.
35 Contributed by HJ Lu.
37 * Improved strcpy, strncpy, stpcpy, stpncpy for SSE2 and SSSE3 on x86-64.
38 Contributed by HJ Lu.
40 * Optimized strcat, strncat on x86-64 and optimized wcscmp, wcslen, strnlen
41 on x86-32 and x86-64.
42 Contributed by Liubov Dmitrieva.
44 * Optimized strchr and strrchr for SSE on x86-32.
45 Contributed by Liubov Dmitrieva.
47 * Optimized memchr, memrchr, rawmemchr, memcmp, wmemcmp, wcschr, wcscpy
48 for x86-64 and x86-32.
49 Contributed by Liubov Dmitrieva.
51 * New interfaces: scandirat, scandirat64
52 Implemented by Ulrich Drepper.
54 * Checking versions of FD_SET, FD_CLR, and FD_ISSET added.
55 Implemented by Ulrich Drepper.
57 * nscd now also caches the netgroup database.
58 Implemented by Ulrich Drepper.
60 * Integrate libm with gcc's -ffinite-math-only option.
61 Implemented by Ulrich Drepper.
63 * Lots of generic, 64-bit, and x86-64-specific performance optimizations
64 to math functions. Implemented by Ulrich Drepper.
66 * Optimized strcasecmp and strncasecmp for AVX on x86-64.
67 Implemented by Ulrich Drepper.
69 * New Linux interfaces: process_vm_readv, process_vm_writev
71 * Optimized strcasecmp and strncasecmp for SSSE3 and SSE4.2 on x86-32.
72 Implemented by Ulrich Drepper.
74 * Optimized nearbyint and strcasecmp for PPC.
75 Implemented by Adhemerval Zanella.
77 * New locales: bho_IN, unm_US, es_CU, ta_LK
78 \f
79 Version 2.14
81 * The following bugs are resolved with this release:
83 386, 6420, 7101, 9730, 9732, 9809, 10138, 10149, 10157, 11099, 11257,
84 11258, 11487, 11532, 11558, 11578, 11634, 11653, 11668, 11697, 11724,
85 11781, 11799, 11820, 11837, 11857, 11869, 11892, 11895, 11901, 11945,
86 11947, 11952, 11987, 12052, 12083, 12158, 12178, 12200, 12346, 12350,
87 12393, 12420, 12432, 12445, 12449, 12453, 12454, 12460, 12469, 12489,
88 12509, 12510, 12511, 12518, 12527, 12541, 12545, 12551, 12582, 12583,
89 12587, 12597, 12601, 12611, 12625, 12626, 12631, 12650, 12653, 12655,
90 12660, 12671, 12681, 12684, 12685, 12711, 12713, 12714, 12717, 12723,
91 12724, 12734, 12738, 12746, 12766, 12775, 12777, 12782, 12788, 12792,
92 12795, 12811, 12813, 12814, 12841
94 * The RPC implementation in libc is obsoleted. Old programs keep working
95 but new programs cannot be linked with the routines in libc anymore.
96 Programs in need of RPC functionality must be linked against TI-RPC.
97 The TI-RPC implementation is IPv6 enabled and there are other benefits.
99 Visible changes of this change include (obviously) the inability to link
100 programs using RPC functions without referencing the TI-RPC library and the
101 removal of the RPC headers from the glibc headers.
102 Implemented by Ulrich Drepper.
104 * New Linux interfaces: clock_adjtime, name_to_handle_at, open_by_handle_at,
105 syncfs, setns, sendmmsg
107 * New locales: os_RU, bem_ZA, en_ZA, ff_SN, sw_KE, sw_TZ, lb_LU, wae_CH,
108 yue_HK, lij_IT, mhr_RU
110 * New encodings: CP770, CP771, CP772, CP773, CP774
112 * New program sotruss to trace calls through PLTs
113 Implemented by Ulrich Drepper.
115 * The malloc hook implementation is marked deprecated and will be removed
116 from the default implementation in the next version. The design never
117 worked ever since the introduction of threads. Even programs which do
118 not create threads themselves can use multiple threads created internally.
119 \f
120 Version 2.13
122 * The following bugs are resolved with this release:
124 3268, 6812, 7066, 10085, 10484, 10563, 10851, 11149, 11155, 11577, 11611,
125 11640, 11655, 11701, 11840, 11856, 11883, 11903, 11904, 11968, 11979,
126 12005, 12037, 12067, 12077, 12078, 12092, 12093, 12107, 12108, 12113,
127 12140, 12159, 12167, 12191, 12194, 12201, 12204, 12205, 12207, 12348,
128 12378, 12394, 12397
130 * New Linux interfaces: prlimit, prlimit64, fanotify_init, fanotify_mark
132 * POWER7 optimizations: memset, memcmp, strncmp
134 * New optimized string functions for x86-64: strnlen (SSE2),
135 strcasecmp (SSE2, SSSE3, SSE4.2), strncasecmp (SSE2, SSSE3, SSE4.2)
136 Implemented by Ulrich Drepper.
137 \f
138 Version 2.12
140 * The following bugs are resolved with this release:
142 3662, 4457, 5553, 10162, 10401, 10414, 10554, 10824, 10864, 10915, 10918,
143 10936, 10939, 10958, 10968, 10969, 10972, 10992, 11000, 11001, 11007,
144 11010, 11027, 11039, 11040, 11041, 11043, 11046, 11056, 11070, 11093,
145 11115, 11120, 11125, 11126, 11127, 11134, 11141, 11149, 11183, 11184,
146 11185, 11186, 11187, 11188, 11189, 11190, 11191, 11192, 11193, 11194,
147 11200, 11230, 11235, 11242, 11254, 11258, 11271, 11272, 11276, 11279,
148 11287, 11292, 11319, 11332, 11333, 11387, 11389, 11390, 11394, 11397,
149 11410, 11438, 11449, 11470, 11471, 11520, 11537, 11538, 11571
151 * New interfaces: pthread_getname_np, pthread_setname_np
153 * New Linux interface: recvmmsg
155 * STT_GNU_IFUNC implemented for Sparc by David Miller.
157 * The dynamic linker now recognizes supported ABI versions from the
158 EI_ABIVERSION field in the ELF header.
159 Implemented by Ulrich Drepper.
161 * New NIS mode selector ADJUNCT_AS_SHADOW. The passwd.adjunct.byname table
162 will not be used to fill in password fields in the passwd.byname replies.
163 Instead it is used to synthesize the shadow.byname table, should it be
164 missing. This is a useful mode in some installations involving Solaris.
165 Implemented by Ulrich Drepper.
167 * New locales: kok_IN, sq_MK, cv_RU
168 \f
169 Version 2.11
171 * The following bugs are resolved with this release:
173 3270, 7094, 9924, 9986, 10011, 10085, 10107, 10159, 10162, 10166, 10183,
174 10195, 10196, 10200, 10203, 10207, 10211, 10213, 10217, 10221, 10229,
175 10262, 10286, 10312, 10315, 10319, 10349, 10360, 10391, 10402, 10416,
176 10418, 10422, 10425, 10446, 10448, 10452, 10540, 10553, 10560, 10564,
177 10609, 10643, 10692, 10713, 10717, 10730, 10731, 10742, 10780, 10784,
178 10789, 10817, 10823, 10840, 10847
180 * New interfaces: execvpe, pthread_sigqueue, mkstemps, mkstemps64, mkostemps,
181 mkostemps64
182 Implemented by Ulrich Drepper.
184 * Checking version of longjmp added that fails if an uninitialized stack
185 frame would be created. Implemented by Ulrich Drepper.
187 * STT_GNU_IFUNC is now supported in static executables.
188 Implemented by H.J. Lu.
190 * STT_GNU_IFUNC implemented for PPC by Alan Modra.
192 * New optimized string functions for x86-64: strstr, strcasestr, memcmp,
193 strcspn, strpbrk, strspn, strcpy, stpcpy, strncpy, strcmp (SSE2, SSE4.2),
194 strncmp (SSE2, SSE4.2), strchr (SSE4.2), strrchr (SSE4.2).
195 Contributed by H.J. Lu.
197 strlen, rawmemchr, strcmp (SSSE3), strncmp (SSSE3).
198 Implemented by Ulrich Drepper.
200 * New optimized string functions for x86: strlen, strcspn, strspn, strpbrk,
201 strstr, strcasestr.
202 Contributed by H.J. Lu.
204 * Support for fma instruction in AVX on x86-64.
205 Implemented by H.J. Lu and Ulrich Drepper.
207 * AVX support in x86-64 auditing support in ld.so.
208 Implemented by H.J. Lu.
210 * STB_GNU_UNIQUE support added.
211 Implemented by Ulrich Drepper.
213 * Implement second fallback mode for optimized DNS lookup for even more
214 broken environments. If two requests from the same port are not
215 handled correctly close the socket and open a new one before sending
216 the second request. The 'single-request-reopen' option in /etc/resolv.conf
217 can be used to select this mode right away, instead of rediscovering the
218 necessity is every process again.
219 Implemented by Ulrich Drepper.
221 * New resolver flag RES_USE_DNSSEC to enable use of verified lookup.
222 Implemented by Adam Tkac.
224 * Optimized iconv conversions for S390x.
225 Implemented by Andreas Krebbel.
227 * Using condvars with PI mutexes is now more efficient due to kernel
228 support for requeueing to PI futexes. NPTL support added for x86-64.
229 Implemented by Ulrich Drepper.
231 * New locales: ps_AF, my_MM
232 \f
233 Version 2.10
235 * The following bugs are resolved with this release:
237 697, 5381, 5807, 6411, 6545, 7040, 7058, 7067, 7080, 7083, 7095, 7098,
238 9677, 9694, 9697, 9701, 9704, 9705, 9706, 9720, 9726, 9730, 9733, 9736,
239 9741, 9750, 9753, 9759, 9781, 9791, 9793, 9823, 9833, 9844, 9880, 9881,
240 9891, 9893, 9895, 9913, 9916, 9920, 9948, 9955, 9957, 9963, 9985, 10052,
241 10069, 10086, 10087, 10090, 10092, 10093, 10100, 10118, 10128
243 * New interfaces: preadv, preadv64, pwritev, pwritev64, malloc_info
244 Implemented by Ulrich Drepper.
246 * New Linux interfaces: accept4, fallocate, fallocate64.
247 Implemented by Ulrich Drepper.
249 * Correct declarations of string function when used in C++ code. This
250 could lead to compile errors for invalid C++ code.
252 * XPG7/POSIX 2008 compilation environment. Many GNU-specific functions are
253 now in POSIX.
255 * New POSIX 2008 interface: psiginfo
256 Implemented by Ulrich Drepper.
258 * New ISO C++1x interfaces: quick_exit, at_quick_exit
259 Implemented by Ulrich Drepper.
261 * Support for selecting between multiple function definitions at runtime
262 using STT_GNU_IFUNC symbols. Implemented by Ulrich Drepper.
264 * The libcrypt library can now use the hash function implementations in
265 NSS. Implemented by Ulrich Drepper.
267 * The malloc implementation can be compiled to be less memory efficient
268 but higher performing in multi-threaded programs.
269 Implemented by Ulrich Drepper.
271 * New locales: nan_TW@latin, ks_IN
273 * Faster strlen, strchr, strchrnul, strrchr, memchr, and rawmemchr for x86-64.
274 Implemented by Ulrich Drepper.
276 * Extended printf hook support. It is possible to use user-defined types
277 and extend existing format specifiers.
278 Implemented by Ulrich Drepper.
280 * Handling for group shadow files has been added.
281 Implemented by Ulrich Drepper.
283 * DNS IPv4-IPv6 parallel lookup now deals better with broken DNS
284 servers (the case, e.g., for some people using the built-in DNS
285 server in ADSL modems/routers). There is a once-per-process timeout
286 in case of a broken server. To avoid it, users can run nscd or put
287 'options single-request' in /etc/resolv.conf.
288 Implemented by Ulrich Drepper.
289 \f
290 Version 2.9
292 * The following bugs are resolved with this release:
294 3406, 5209, 5210, 5381, 5794, 5814, 5911, 6428, 6438, 6442, 6447, 6461,
295 6472, 6505, 6544, 6589, 6612, 6634, 6653, 6654, 6657, 6698, 6712, 6713,
296 6719, 6723, 6724, 6740, 6763, 6771, 6790, 6791, 6817, 6824, 6839, 6843,
297 6845, 6856, 6857, 6860, 6867, 6875, 6919, 6920, 6942, 6947, 6955, 6966,
298 6968, 6974, 6980, 6995, 7008, 7009, 7029
300 * Unified lookup for getaddrinfo: IPv4 and IPv6 addresses are now looked
301 up at the same time. Implemented by Ulrich Drepper.
303 * TLS descriptors for LD and GD on x86 and x86-64.
304 Implemented by Alexandre Oliva.
306 * getaddrinfo now handles DCCP and UDPlite.
307 Implemented by Ulrich Drepper.
309 * New fixed-size conversion macros: htobe16, htole16, be16toh, le16toh,
310 htobe32, htole32, be32toh, le32toh, htobe64, htole64, be64toh, le64toh.
311 Implemented by Ulrich Drepper.
313 * New implementation of memmem, strstr, and strcasestr which is O(n).
314 Implemented by Eric Blake.
316 * New Linux interfaces: inotify_init1, dup3, epoll_create1, pipe2
318 * Implement "e" option for popen to open file descriptor with the
319 close-on-exec flag set. Implemented by Ulrich Drepper.
321 * Implement "b" mode for fmemopen. In this mode writes writes don't
322 implicitly add a NUL byte and seeks from the end of the buffer really
323 use the buffer end, not the string length as the basis.
324 Implemented by Ulrich Drepper.
326 * Many functions, exported and internal, now atomically set the close-on-exec
327 flag when run on a sufficiently new kernel. Implemented by Ulrich Drepper.
329 * Sorting rules for some Indian languages (Kannada, Gurumukhi, Telugu,
330 Sinhala)
331 Implemented by Pravin Satpute.
333 * New locales: sd_IN, sd_IN@devanagari, ks_IN@devanagari, ht_HT, en_AG, nl_AW.
334 \f
335 Version 2.8
337 * The following bugs are resolved with this release:
339 2549, 3112, 4314, 4407, 4997, 5012, 5040, 5112, 5204, 5208, 5209, 5220,
340 5222, 5224, 5225, 5237, 5238, 5240, 5245, 5277, 5346, 5375, 5378, 5382,
341 5424, 5427, 5428, 5435, 5436, 5439, 5441, 5442, 5443, 5451, 5452, 5454,
342 5455, 5463, 5464, 5465, 5475, 5477, 5478, 5520, 5541, 5545, 5553, 5600,
343 5602, 5607, 5614, 5627, 5628, 5736, 5737, 5741, 5753, 5760, 5762, 5768,
344 5774, 5777, 5778, 5779, 5786, 5790, 5818, 5854, 5857, 5903, 5939, 5979,
345 5983, 5995, 5998, 6004, 6007, 6020, 6021, 6024, 6040, 6042
347 * New locales: bo_CN, bo_IN, shs_CA.
349 * New encoding: HP-ROMAN9, HP-GREEK8, HP-THAI8, HP-TURKISH8.
351 * Sorting rules for some Indian languages (Devanagari and Gujarati).
352 Implemented by Pravin Satpute.
354 * IPV6 addresses in /etc/resolv.conf can now have a scope ID
356 * nscd caches now all timeouts for DNS entries
357 Implemented by Ulrich Drepper.
359 * nscd is more efficient and wakes up less often.
360 Implemented by Ulrich Drepper.
362 * More checking functions: asprintf, dprintf, obstack_printf, vasprintf,
363 vdprintf, and obstack_vprintf.
364 Implemented by Jakub Jelinek.
366 * Faster memset for x86-64.
367 Implemented by Harsha Jagasia and H.J. Lu.
369 * Faster memcpy on x86.
370 Implemented by Ulrich Drepper.
372 * ARG_MAX is not anymore constant on Linux. Use sysconf(_SC_ARG_MAX).
373 Implemented by Ulrich Drepper.
375 * Faster sqrt and sqrtf implemention for some PPC variants.
376 Implemented by Stephen Munroe.
377 \f
378 Version 2.7
380 * The following bugs are resolved with this release:
382 4125, 4126, 4178, 4359, 4407, 4512, 4514, 4525, 4554, 4556, 4557, 4566,
383 4582, 4586, 4588, 4599, 4610, 4647, 4702, 4705, 4726, 4745, 4772, 4773,
384 4775, 4776, 4792, 4813, 4814, 4816, 4833, 4858, 4860, 4896, 4905, 4925,
385 4936, 4937, 4938, 4941, 4946, 4963, 4972, 5010, 5028, 5043, 5058, 5063,
386 5071, 5103, 5104, 5112, 5113, 5184, 5186
388 * More checking functions: fread, fread_unlocked, open*, mq_open.
389 Implemented by Jakub Jelinek and Ulrich Drepper.
391 * Extend fortification to C++. Implemented by Jakub Jelinek.
393 * Implement 'm' modifier for scanf. Add stricter C99/SUS compliance
394 by not recognizing 'a' as a modifier when those specs are requested.
395 Implemented by Jakub Jelinek.
397 * PPC optimizations to math and string functions.
398 Implemented by Steven Munroe.
400 * New interfaces: mkostemp, mkostemp64. Like mkstemp* but allow additional
401 options to be passed. Implemented by Ulrich Drepper.
403 * More CPU set manipulation functions. Implemented by Ulrich Drepper.
405 * New Linux interfaces: signalfd, eventfd, eventfd_read, and eventfd_write.
406 Implemented by Ulrich Drepper.
408 * Handle private futexes in the NPTL implementation.
409 Implemented by Jakub Jelinek and Ulrich Drepper.
411 * Add support for O_CLOEXEC. Implement in Hurd. Use throughout libc.
412 Implemented by Roland McGrath and Ulrich Drepper.
414 * Linux/x86-64 vDSO support. Implemented by Ulrich Drepper.
416 * SHA-256 and SHA-512 based password encryption.
417 Implemented by Ulrich Drepper.
419 * New locales: ber_DZ, ber_MA, en_NG, fil_PH, fur_IT, fy_DE, ha_NG, ig_NG,
420 ik_CA, iu_CA, li_BE, li_NL, nds_DE, nds_NL, pap_AN, sc_IT, tk_TM, ug_CN,
421 yo_NG.
423 + New iconv modules: MAC-CENTRALEUROPE, ISO-8859-9E, KOI8-RU.
424 Implemented by Ulrich Drepper.
425 \f
426 Version 2.6
428 * The following bugs are resolved with this release:
430 3156, 3213, 3285, 3291, 3306, 3313, 3320, 3322, 3325, 3326, 3334, 3348,
431 3352, 3363, 3369, 3426, 3427, 3429, 3451, 3458, 3465, 3480, 3483, 3493,
432 3514, 3515, 3559, 3632, 3664, 3673, 3674, 3745, 3747, 3818, 3840, 3842,
433 3851, 3855, 3884, 3885, 3902, 3905, 3919, 3944, 3954, 3955, 3957, 3991,
434 3995, 3996, 4024, 4040, 4069, 4070, 4074, 4076, 4096, 4101, 4102, 4114,
435 4130, 4131, 4181, 4276, 4306, 4342, 4344, 4349, 4364, 4368, 4381, 4392,
436 4403, 4405, 4406, 4411, 4438, 4439, 4455, 4456, 4465, 4512, 4514, 4586,
437 4702, 4858
439 * New Linux interfaces: epoll_pwait, sched_getcpu.
441 * New generic interfaces: strerror_l.
443 * nscd can now cache the services database. Implemented by Ulrich Drepper.
444 \f
445 Version 2.5
447 * The following bugs are resolved with this release:
449 39, 68, 192, 352, 388, 531, 935, 1006, 1201, 1203, 1386, 1782, 1783, 1784,
450 1785, 1786, 1787, 1951, 1974, 1996, 2072, 2098, 2125, 2134, 2158, 2182,
451 2349, 2376, 2386, 2389, 2415, 2418, 2420, 2423, 2450, 2451, 2466, 2472,
452 2473, 2477, 2498, 2499, 2501, 2502, 2505, 2507, 2508, 2509, 2517, 2526,
453 2569, 2571, 2592, 2611, 2625, 2632, 2644, 2662, 2680, 2683, 2684, 2693,
454 2695, 2703, 2734, 2751, 2764, 2766, 2775, 2792, 2821, 2823, 2832, 2841,
455 2843, 2883, 2892, 2908, 2914, 2926, 2961, 2978, 2980, 2987, 2997, 2998,
456 3013, 3018, 3034, 3040, 3044, 3123, 3124, 3137, 3138, 3143, 3155, 3189,
457 3225, 3251, 3252, 3253, 3273
459 * For Linux, the sorting of addresses returned by getaddrinfo now also
460 handles rules 3, 4, and 7 from RFC 3484. I.e., all rules are handled.
461 Implemented by Ulrich Drepper.
463 * Allow system admin to configure getaddrinfo with the /etc/gai.conf file.
464 Implemented by Ulrich Drepper.
466 * New Linux interfaces: splice, tee, sync_file_range, vmsplice.
468 * New iconv module for MIK. Contributed by Alexander Shopov.
470 * For sites with broken group and/or passwd database, the auto-propagate
471 option of nscd can prevent creating ID lookup entries from the results
472 of a name lookup and vice versa. This usually is no problem but some
473 site might have problems with the default behavior.
474 Implemented by Ulrich Drepper.
476 * Iterating over entire database in NIS can be slow. With the
477 SETENT_BATCH_READ option in /etc/default/nss a system admin can decide
478 to trade time for memory. The entire database will be read at once.
479 Implemented by Ulrich Drepper.
481 * The interfaces introduced in RFC 3542 have been implemented by
482 Ulrich Drepper.
484 * Support for the new ELF hash table format was added by Ulrich Drepper.
486 * Support for priority inheritance mutexes added by Jakub Jelinek and
487 Ulrich Drepper.
489 * Support for priority protected mutexes added by Jakub Jelinek.
491 * New locales: nr_ZA, pa_PK, ca_AD, ca_FR, ca_IT, el_CY, tr_CY, as_IN,
492 or_IN, csb_PL, fy_NL, sr_ME.
493 \f
494 Version 2.4
496 * More overflow detection functions.
498 * New iconv converters for IBM1025, IBM1122, IBM1137, IBM1153,
499 IBM1154, IBM1155, IBM1156, IBM1157, and IBM1158 contributed by Jiro Sekiba.
501 More converters for IBM803, IBM901, IBM902, IBM921, IBM1008, IBM1097,
502 IBM1112, IBM1123, IBM1130, IBM1140, IBM1141, IBM1142, IBM1143, IBM1144,
503 IBM1145, IBM1146, IBM1147, IBM1148, IBM1149, IBM1166, IBM1167, IBM4517,
504 IBM4899, IBM4909, IBM4971, IBM5347, IBM9030, IBM9066, IBM9448, IBM12712,
505 IBM16804, IBM1364, IBM1371, IBM1388, IBM1390, and IBM1399 contributed
506 by Masahide Washizawa.
508 * It is now possible to install audit libraries for the dynamic linker using
509 LD_AUDIT. Implemented by Ulrich Drepper.
511 * The LinuxThreads add-on, providing pthreads on Linux 2.4 kernels, is no
512 longer supported. The new NPTL implementation requires Linux 2.6 kernels.
513 For a libc and libpthread that works well on Linux 2.4 kernels, we
514 recommend using the stable 2.3 branch.
516 * The new function open_wmemstream acts like open_memstream,
517 but uses a wchar_t wide character buffer.
519 * The new function ppoll is an improved version of poll, similar to pselect.
521 * New interfaces: fdopendir, openat, fstatat, fchmodat, fchownat,
522 futimesat, faccessat, mkdirat, mkfifoat, mknodat,
523 renameat, unlinkat, linkat, symlinkat, readlinkat.
525 * New Linux kernel system calls: unshare,
526 inotify_init, inotify_add_watch, inotify_rm_watch.
528 * The euidaccess function is now also known by the alias eaccess,
529 for compatibility with some other systems.
531 * Timezone data updated to 2006b version.
532 \f
533 Version 2.3.6
535 * The following bugs are resolved with this release:
537 38, 253, 549, 622, 653, 721, 758, 851, 877, 915, 934, 955, 961,
538 1016, 1037, 1076, 1079, 1080, 1081, 1082, 1083, 1084, 1085, 1086,
539 1087, 1088, 1090, 1091, 1092, 1093, 1094, 1095, 1096, 1097, 1098,
540 1099, 1100, 1101, 1102, 1103, 1104, 1105, 1106, 1107, 1108, 1109,
541 1110, 1111, 1112, 1113, 1125, 1137, 1138, 1249, 1250, 1251, 1252,
542 1253, 1254, 1350, 1358, 1394, 1438, 1498, 1534
544 Visit <http://sources.redhat.com/bugzilla/> for the details of each bug.
546 * As of this release, GCC 4 can be used to compile the C Library.
548 * Timezone data updated to 2005m version.
549 \f
550 Version 2.3.5
552 * The following bugs are resolved with this release:
554 284, 592, 602, 626, 633, 640, 650, 661, 671, 681, 693, 700, 710, 719,
555 722, 723, 725, 726, 727, 728, 729, 730, 731, 732, 733, 734, 735, 736,
556 737, 738, 739, 740, 741, 742, 743, 744, 745, 765, 767, 768, 769, 776,
557 777, 787, 821, 822, 823, 825
559 Visit <http://sources.redhat.com/bugzilla/> for the details of each bug.
560 \f
561 Version 2.3.4
563 * Support for RFC 3678. Real implementations exist only for Linux so far.
564 Implemented by Ulrich Drepper.
566 * nscd can now cache entries persistently. Expiring entries are reloaded.
567 For speedups the cache can be shared in memory with client processes.
568 Implemented by Ulrich Drepper.
570 * nscd can now perform SELinux checks.
571 Implemented by Matthew Rickard <mjricka@epoch.ncsc.mil>.
573 * getaddrinfo queries are now cached. Canonical name lookup is performed
574 efficiently.
575 Implemented by Ulrich Drepper.
577 * The nothrow function attribute is used when headers are used by gcc when
578 compiling C code. This can avoid significant amounts of exception
579 handling data.
581 * The malloc functions perform more error checking and are stricter when
582 it comes to reacting on errors. The default action is to terminate
583 the process after showing an error message. Implemented by Ulrich Drepper.
585 * Reverse lookups of IPv6 addresses does not use bit string or .ip6.int
586 lookups anymore unless explicitly requested. Implemented by Ulrich Drepper.
588 * Namespaces in ld.so are implemented. DSOs can be loaded in separate
589 namespaces using the new function dlmopen(). This feature is of course,
590 like most other dynamic loading functionality, not available in statically
591 linked applications. Implemented by Ulrich Drepper.
593 * Low-overhead boundary checking variants of string and some stdio functions
594 were added. These are to be used in conjunction with a gcc patch by
595 Jakub Jelinek which adds calls to these functions if possible.
596 Implemented by Jakub Jelinek and Ulrich Drepper.
598 * Old code for several operating systems and machine architectures that
599 have not been in working condition in a long time have been removed from
600 the main source tree maintained by the GNU C Library's maintainers.
601 These files are now reside in the separate `ports' source module
602 that is usable as an add-on when building the library.
603 \f
604 Version 2.3.3
606 * New functions `dladdr1' and `dlinfo' in <dlfcn.h> provide more ways to
607 interrogate the dynamic linker, compatible with the Solaris interface.
609 * ELF thread-local storage support (TLS) now works on PowerPC and PowerPC64;
610 implemented by Paul Mackerras, Steven Munroe, and Roland McGrath.
612 * getifaddrs now uses the netlink interface on Linux to get its information.
613 Implemented by Thorsten Kukuk.
615 * getaddrinfo now implements AI_V4MAPPED, AI_ALL, and AI_ADDRCONF.
616 Implemented by Ulrich Drepper.
618 * support for non-executable stacks on x86 has been added. Changes mostly
619 by Roland McGrath.
621 * regex is now much faster for multibyte locales. Changes by Jakub Jelinek
622 and Ulrich Drepper.
624 * getaddrinfo now performs destination address selection according to
625 RFC 3484.
626 \f
627 Version 2.3.2
629 * Thread-safe interfaces for many functions that access locale data
630 were added in version 2.3, but these features were omitted from NEWS.
631 Many functions have variants with an `_l' suffix that take a `locale_t'
632 object as a parameter rather than consulting the current locale.
633 The new functions `newlocale', `duplocale', and `freelocale' in <locale.h>
634 create and maintain `locale_t' objects. Additionally, the new function
635 `uselocale' sets "the current locale" (as used by functions not so
636 parameterized) set for an individual thread. These features were added
637 in version 2.3, implemented by Ulrich Drepper and Roland McGrath.
639 * The functions getresuid, getresgid, setresuid, and setresgid, which
640 have long been available on Linux, are now declared in <unistd.h>
641 and are now also available on the Hurd.
643 * ELF thread-local storage support (TLS) now works on x86-64.
645 * The new dynamic string token $LIB is expanded in shared library names.
646 This normally expands to lib, but on some 64-bit platforms to lib64 instead.
648 * Aldy Hernandez contributed complete software floating point support for
649 PowerPC machines with no FPU.
651 * fexecve is implemented on Linux.
653 * The `btowc' function should work at least twice as fast due to
654 specialized callbacks in the iconv modules. Implemented by Bruno Haible.
656 * With approriate thread add-ons cancelable functions are now implemented
657 in libc.so as well. No need to call the function in libpthread. This
658 change allowed to finally disable the incorrect and expensive handling
659 of weak definition in ld.so.
661 * Yet more PLT entries in libc.so have been removed. We finally arrived
662 at the bare minimum. Startup times improved appropriately.
664 * Support for the new Linux/x86 system call interface was added. The
665 AT_SYSINFO auxiliary vector entry is recognized and handled.
666 \f
667 Version 2.3
669 * Masahide Washizawa contributed iconv modules for IBM1163 and IBM1164
670 charsets.
672 * iconv (the program and the interface) now accepts empty names (excluding
673 options like //TRANSLIT) to mean "use charset of current locale".
675 * localedef can now transliterate characters in strings which are not in
676 the provided charmap. The information from the input locale is used.
678 * Prelinking support was added for ELF targets. This requires additional
679 tools and recent versions of the GNU binutils. Contributed by Jakub Jelinek.
681 * Read-only stdio streams now use mmap to speed up operation by eliminating
682 copying and buffer underflows. To use add 'm' to the mode string of
683 the fopen/fdopen/freopen call. Implemented by Ulrich Drepper.
685 * The malloc functions were completely rewritten by Wolfram Gloger based
686 on Doug Lea's malloc-2.7.0.c.
688 * Isamu Hasegawa contributed a completely new and POSIX-conformant
689 implementation of regex.
691 * Bruno Haible upgraded the iconv and locale implementation to support
692 Unicode 3.2.
694 * Contents of the LC_* and LANG environment variables in the CEN style are
695 not recognized anymore. It never was used. Change by Ulrich Drepper.
697 * The runtime (ld.so, libc, libpthread for Linux) now can handle the ELF
698 thread-local storage (TLS) ABI on some platforms.
699 Changes by Ulrich Drepper. SH support by Kaz Kojima.
701 * Bruno Haible contributed iconv converters for ISO-2022-JP-3, SHIFT JIS-X0213,
702 EUC-JISX0213, and TSCII.
704 * New header <ifaddrs.h> with functions `getifaddrs' and `freeifaddrs':
705 BSD-compatible interface for getting all network interface addresses.
706 Implementation for IPv4 by Roland McGrath.
708 * Loading of locale data is faster due to the introduction of a locale
709 archive. Implemented by Roland McGrath and Ulrich Drepper.
711 * Startup times are significantly reduced by not using exported functions
712 inside the library itself. Changes by Jakub Jelinek, Roland McGrath,
713 and Ulrich Drepper.
715 * Steven Munroe contributed a port to PowerPC64/Linux.
716 \f
717 Version 2.2.6
719 * The Hurd now uses the GNU libio implementation of stdio rather than the
720 old GNU stdio implementation, and uses a new ABI (libc.so.0.3).
722 * The Hurd on x86 now has the `ioperm' function and <sys/io.h> header file
723 with the same behavior as the Linux system call of the same name.
724 \f
725 Version 2.2.5
727 * Stephen Moshier implemented log2, log10, powl and cbrtl for the
728 128-bit long double format.
730 * Masahide Washizawa contributed iconv modules for IBM1132, IBM1133, IBM1160,
731 IBM1161, and IBM1162 charsets.
733 * Andreas Jaeger contributed a port to x86-64/Linux.
735 * Peter Bruin contributed a port to PowerPC/Hurd.
737 * libc functions using I/O streams now can handle wide-oriented streams
738 as well.
740 * optimizations in the dynamic linker. Binaries created by recent binutils
741 versions start up quicker due to reduced time spent on relocations.
743 * Support for use of gcc3 added by Jakub Jelinek and HJ Lu.
744 \f
745 Version 2.2.4
747 * Stephen Moshier implemented cosh, expm1, log1p, acos, sinh, tanh,
748 asinh, atanh, j0 for the 128-bit long double format.
750 * Bruno Haible updated all the code handling Unicode in some form to
751 support Unicode 3.1.
753 * Speed of regex for single-byte locales is back to previous levels.
754 Patch by Isamu Hasegawa.
756 * Alpha, SPARC, and IA-64 now also using floating stacks.
758 * Startup time of internationalized applications greatly improved through
759 iconv cache. Use iconvconfig to generate the cache file.
760 Contributed by Ulrich Drepper.
762 * The IA-64 specific part of ld.so was rewritten to eliminate some pretty
763 severe performance problems. Patch by David Mosberger.
765 * The Hurd port got a lot more functionality like AIO, various stdio
766 extensions, etc. Mainly done by Roland McGrath.
768 * mtrace can now lookup symbols in shared libraries.
769 \f
770 Version 2.2.3
772 * Intel's IA-64 math library is largely integrated. It provides fast and
773 accurate implementatations for most basic and standard math functions
774 in float, double, and long double format.
776 * Stephen Moshier implemented j0, j1, jn, y0, y1, yn, lgamma, erf, erfc,
777 and asin for the 96-bit long double format and asin, log, tan for the
778 128-bit long double format.
780 * The beginning of a last-bit accurate math library by IBM Haifa were added.
781 The basic double functions exist today. Contributed by Abraham Ziv
782 <ziv@il.ibm.com>, Moshe Olshansky <olshansk@il.ibm.com>, Ealan Henis
783 <ealan@il.ibm.com>, and Anna Reitman <reitman@il.ibm.com>.
785 * An asynchronous name lookup library was added. The interface is designed
786 after POSIX AIO. The proposal was circulated beforehand to get comments.
787 No negative ones came in. Implemented by Ulrich Drepper.
789 * Port to S390/64bit contributed by Martin Schwidefsky
790 <schwidefsky@de.ibm.com>.
792 * David Mosberger <davidm@hpl.hp.com> implemented the setcontext family
793 of functions for Linux/IA-64.
795 * The RPC code is now thread safe. Threads can now use the same service
796 of different services at the same time. Patch by Eric Norum
797 <eric.norum@usask.ca> with some help by Ulrich Drepper.
799 * Martin Schwidefsky <schwidefsky@de.ibm.com> implemented the setcontext
800 family of functions for Linux/S390.
802 * Ulrich Drepper <drepper@redhat.com> implemented the setcontext family
803 of functions for Linux/x86.
805 * Port to Linux/CRIS contributed by Axis Communications.
806 \f
807 Version 2.2.2
809 * Lots of headers were cleaned up. Using the tool in the conform/ subdir
810 we can now check for namespace violations and missing declarations. The
811 result is that almost all headers are now Unix-compliant (as defined in
812 the upcoming XPG6). The negative side is that some programs might need
813 corrections, too, if they depend on the incorrect form of the headers in
814 previous versions which defined too many symbols and included too many
815 other headers.
817 * regex now handles multibyte character sets correctly.
818 Contributed by Isamu Hasegawa <isamu@yamato.ibm.com>.
820 * iconv (the program) does now conform to the upcoming XPG6 and handles
821 charmaps. Instead of the charset names the path of charmaps can be
822 provided and the conversion happens based on this data.
823 Contributed by Ulrich Drepper.
825 * The locale program now provides detailed information about the installed
826 locales. While
828 locale -a
830 only lists the names of the supported locales
832 locale -a --verbose
834 provides details such as country, language, and codeset name.
835 Contributed by Ulrich Drepper.
836 \f
837 Version 2.2.1
839 * The gencat program now parses the input file according to the charset
840 selected by the LC_CTYPE category. This is important for stateful
841 character sets. To make generating catalogs easier there is a way
842 to overwrite the charset selected by the locale: before the first
843 message or $ quote line the catalog can contain a line like
845 $ codeset=ISO-8859-2
847 to select the charset (ISO-8859-2 in this case).
849 Implemented by Shinya Hanataka and Ulrich Drepper.
851 * New codeset conversion modules: IBM-922 (Estonia PC codeset),
852 IBM-1124 (Ukraine PC codeset), IBM-1129 (Vietnamese PC codeset).
853 Contributed by Masahide Washizawa <washi@jp.ibm.com>.
855 * Optimized string functions for Alpha ev6 and ev67 by Richard Henderson
856 <rth@redhat.com> and Rick Gorton <rick.gorton@alpha-processor.com>.
858 * The LANGUAGE environment variable is now ignored unless the locale is
859 changed from the default "C" locale.
861 * The usual bug fixes.
862 \f
863 Version 2.2
865 * Greg McGary added runtime support for bounds checking using gcc's
866 new -fbounded-pointers option. ix86 target is complete. PowerPC
867 is in progress.
869 * Thorsten Kukuk added secure mode support to nscd.
871 * The Berkeley db libraries have been removed.
873 Related, the nss_db module is now in a separate package since it
874 obviously requires a database library being available.
876 * Wide character I/O streams implemented by Ulrich Drepper.
878 * Functions from the extended socket API added by Ulrich Drepper.
880 * Functions feenableexcept and fedisableexcept to control the
881 behaviour of individual exceptions have been added by Andreas Jaeger.
883 * ldconfig program added by Andreas Jaeger and Jakub Jelinek.
885 * The resolver code has been updated from bind 8.2.3-T5B which supports
886 threads. The integration was done by Andreas Jaeger, Adam D. Bradley,
887 and Mark Kettenis.
889 This change could in some situations effect backward compatibility. Since
890 now `_res' is a thread-local instead of a global variable, modifying it
891 in one thread does not have any effect in other threads.
893 The resolver library was also extended to allow IPv6 as the transport
894 protocol for the requests. This work was done by Stig Venaas.
896 * Compatibility code for K&R C compilers has been removed from the
897 header files. A ISO C compiler is needed to use the library
898 (conforming to either C89 or C99 standard).
900 * Complete rewrite of the localedef program to support multibyte character
901 sets. Implement handling of ISO 14651 and ISO 14652. Rewrite strcoll,
902 strxfrm, wcscoll, and wcsxfrm functions. Make isw*() functions work.
903 Implemented by Ulrich Drepper.
905 Bruno Haible significantly improved the generation and use of the data
906 structures for the wide character tables.
908 * Plural handling in gettext implemented by Ulrich Drepper.
910 * The utmp daemon has been removed.
912 * The port to MIPS-Linux has been finished by Andreas Jaeger.
914 * A port to Hitachi SH3 and SH4 has been contributed by Kazumoto Kojima
915 and Yutaka Niibe.
917 * POSIX clocks and timers implemented by Kaz Kylheku and Ulrich Drepper.
919 * POSIX barriers implemented by Kaz Kylheku.
921 * POSIX spawn function family implemented by Ulrich Drepper.
923 * POSIX spinlocks are now available.
925 * Timed wait functions for mutex, rwlock, and semaphores are implemented.
927 * the configure option --enable-kernel=X.Y.Z allows to strip out
928 compatibility for kernel versions before X.Y.Z. This is currently only
929 implemented for Linux.
931 * the sockaddr_in6 structure changed. The IPv6 working group added a new
932 field sin6_scope_id. This means that all programs using IPv6 should be
933 recompiled. Don't expect binary compatibility with previous glibc
934 versions.
936 * various conversion modules for IBM character sets contributed by
937 Masahide Washizawa.
939 * IA-64 port by Jes Sorensen and HJ Lu.
941 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
942 Compiling the GNU C Library for Linux/ia64
943 ******************************************
945 Please refer to the file INSTALL in the same directory as you found
946 this file for general information about configuring and compiling
947 glibc.
949 For general inquiries about glibc under Linux/ia64 please use the
950 following mailing list linux-ia64@linuxia64.org or one of the relevant
951 glibc mailing lists.
953 Recommended Tools for Compilation
954 =================================
956 In order for glibc-2.2 to build correctly on the ia64 you need at
957 least the following versions of the GNU tools (the :
959 * The Cygnus toolchain snapshot for the ia64 as of August 4
960 including the provided set of patches. It is however recommend
961 you use the October 24 toolchain snapshot or a more recent version.
963 OR alternatively you can try the following (the Cygnus toolchain is
964 the recommended solution):
966 * GCC and binutils, GAS and GNU LD out of CVS from
967 sources.redhat.com as of August 28, 2000 or later. The CVS tree
968 may require special patches to work properly on the ia64.
970 Configuring and compiling GNU Libc for Linux/ia64
971 =================================================
973 The library requires Linux kernel version 2.4.0-test4-000728 or
974 later to funtion properly. Besides that it support for debug libraries
975 is currently untested. Hence the following options
976 are required for configuring the library:
978 --disable-debug --enable-kernel=2.4.0
980 It is also important that you make sure the library picks up the
981 appropriate kernel header files, if you do not have recent enough
982 kernel headers in /usr/src/linux/include, you should use the
983 --with-headers=<path> option to specify the location.
985 As an example I personally use the following options to configure
986 the library:
988 --disable-debug
989 --disable-cvs
990 --enable-kernel=2.4.0
991 --host=ia64-linux
992 --enable-add-ons=yes
993 --prefix=/usr
994 --with-headers=/home/jes/linux/include
997 Good luck
999 Jes Sorensen <jes@linuxcare.com>,
1000 November 14th, 2000
1001 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1002 \f
1003 Version 2.1.3
1005 * bug fixes
1007 \f
1008 Version 2.1.2
1010 * bug fixes
1012 \f
1013 Version 2.1.1
1015 * New ISO C 9x function _Exit, imaxabs, and imaxdiv are added.
1017 * New xdr functions are added; some rpc functions are now 64bit clean.
1019 * Fixed a number of bugs and memory leaks (especially in NIS+ code).
1021 * Fixed known incompatibilities with glibc 2.0.
1023 * New functions lock64, strchrnul, rawmemchr, getutmp and getutmpx.
1025 * Optimized a number of functions (especially the ELF dynamic loader).
1027 * Update timezone data files.
1029 * lots of charmaps corrections
1031 * some new locale definitions and charmaps
1033 \f
1034 Version 2.1
1036 * Richard Henderson corrected size of struct timeval on Linux/Alpha to
1037 conform to POSIX member type requirements. Symbol versions have been
1038 adjusted as needed within the library, and for direct use by applications,
1039 but there is potential for problems if third-party libraries use
1040 struct timeval as part of their interface. This does not present
1041 a problem for X and other "essential" system libraries.
1043 * An additional locale model to support C++ Standard Library locale
1044 model and probably more was implemented by Ulrich Drepper.
1046 * Eric Youngdale and Ulrich Drepper implemented versioning of objects on
1047 symbol level.
1049 * Miles Bader provided the `argp' function family to support hierachical
1050 command line argument parsing, layered on top of getopt.
1052 * strtod accepts new hexadecimal floating-point format from ISO C 9X.
1054 * printf has two new specifiers %a and %A to print hexadecimal flaoting-point
1055 numbers.
1057 * scanf recognizes the %a and %A format for scanning floating point numbers.
1059 * the new headers <stdint.h> and <inttypes.h> from ISO C 9X provides
1060 information and interfaces for the available integer types.
1062 * about 130 new math functions were added to implement the ISO C9x math
1063 library.
1065 * the new header <complex.h> contains definitions of the complex math
1066 functions from ISO C 9X.
1068 * the new header <tgmath.h> defines generic macros to use complex or
1069 real valued functions.
1071 * Thorsten Kukuk provided an implementation for NIS+, securelevel 0, 1 and 2.
1073 * Andreas Jaeger provided a test suite for the math library.
1075 * Mark Kettenis implemented the utmpx interface and an utmp daemon.
1077 * Ulrich Drepper added character set conversion functions (iconv).
1079 * Optimized string functions have been added.
1081 * The localedata addon is now part of glibc.
1083 * An implementation of profiling shared libraries was added by Ulrich Drepper.
1085 * Thorsten Kukuk and Ulrich Drepper provided an implementation for a caching
1086 daemon for NSS (nscd).
1088 Missing a better place here are some numbers on improvements. Under
1089 Linux 2.1.125 un-tar-ing the kernel sources takes
1091 user system wall
1093 using local files 12.19s 6.88s 22.91s
1095 using NIS 13.92s 8.91s 26.34s
1097 using NIS & nscd 10.37s 7.34s 25.30s
1099 using NIS+ 27.57s 30.37s 640.46s
1101 using NIS+ & nscd 10.25s 7.83s 26.51s
1103 using NIS & old nscd [1] 13.83s 8.32s 29.60s
1105 Keep in mind that non-namelookup related operations dominate above times.
1106 It was just a common complain that using NIS+ unpacking the kernel is
1107 horribly slow.
1109 [1] The old nscd implementation is not available anymore since it was
1110 distributed with glibc up to version 2.0.98 and thus is now replaced.
1112 * Tim Waugh provided an implementation of the POSIX.2 wordexp function family.
1114 * Mark Kettenis provided a Hesiod NSS module.
1116 * The ELF dynamic loader knows how to process dynamic string tokens ($ORIGIN
1117 and $PLATFORM) in RPATHs and similar strings (Ulrich Drepper).
1119 * rcmd can now handle netgroups (Dick Streefland).
1121 * A port to the ARM was contributed by Phil Blundell, Pat Beirne and Scott
1122 Bambrough.
1124 * Support for the IPv6 protocol has been added to the socket API, as per the
1125 latest draft standards.
1127 * Support for Linux 2.2 has been added.
1129 * Interface changes relative to the latest 2.0.x release:
1130 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1131 addseverity NEW: Unix98
1132 alphasort64 NEW: LFS
1133 argp_err_exit_status NEW: argp, GNU ext
1134 argp_error NEW: argp, GNU ext
1135 argp_failure NEW: argp, GNU ext
1136 argp_help NEW: argp, GNU ext
1137 argp_parse NEW: argp, GNU ext
1138 argp_program_bug_address NEW: argp, GNU ext
1139 argp_program_version NEW: argp, GNU ext
1140 argp_program_version_hook NEW: argp, GNU ext
1141 argp_state_help NEW: argp, GNU ext
1142 argp_usage NEW: argp, GNU ext
1143 authdes_create NEW: Secure RPC
1144 authdes_getucred NEW: Secure RPC
1145 authdes_pk_create NEW: Secure RPC
1146 backtrace NEW: GNU ext.
1147 backtrace_symbols NEW: GNU ext.
1148 backtrace_symbols_fd NEW: GNU ext.
1149 cacos NEW: ISO C 9x
1150 cacosf NEW: ISO C 9x
1151 cacosh NEW: ISO C 9x
1152 cacoshf NEW: ISO C 9x
1153 cacoshl NEW: ISO C 9x
1154 cacosl NEW: ISO C 9x
1155 capget NEW: kernel
1156 capset NEW: kernel
1157 carg NEW: ISO C 9x
1158 cargf NEW: ISO C 9x
1159 cargl NEW: ISO C 9x
1160 casin NEW: ISO C 9x
1161 casinf NEW: ISO C 9x
1162 casinh NEW: ISO C 9x
1163 casinhf NEW: ISO C 9x
1164 casinhl NEW: ISO C 9x
1165 casinl NEW: ISO C 9x
1166 catan NEW: ISO C 9x
1167 catanf NEW: ISO C 9x
1168 catanh NEW: ISO C 9x
1169 catanhf NEW: ISO C 9x
1170 catanhl NEW: ISO C 9x
1171 catanl NEW: ISO C 9x
1172 cbc_crypt NEW: Secure RPC
1173 ccos NEW: ISO C 9x
1174 ccosf NEW: ISO C 9x
1175 ccosh NEW: ISO C 9x
1176 ccoshf NEW: ISO C 9x
1177 ccoshl NEW: ISO C 9x
1178 ccosl NEW: ISO C 9x
1179 cexp NEW: ISO C 9x
1180 cexpf NEW: ISO C 9x
1181 cexpl NEW: ISO C 9x
1182 cimag NEW: ISO C 9x
1183 cimagf NEW: ISO C 9x
1184 cimagl NEW: ISO C 9x
1185 clearerr_locked REMOVED
1186 clntunix_create NEW: sunrpc ext
1187 clog NEW: ISO C 9x
1188 clog10 NEW: ISO C 9x
1189 clog10f NEW: ISO C 9x
1190 clog10l NEW: ISO C 9x
1191 clogf NEW: ISO C 9x
1192 clogl NEW: ISO C 9x
1193 conj NEW: ISO C 9x
1194 conjf NEW: ISO C 9x
1195 conjl NEW: ISO C 9x
1196 cpow NEW: ISO C 9x
1197 cpowf NEW: ISO C 9x
1198 cpowl NEW: ISO C 9x
1199 cproj NEW: ISO C 9x
1200 cprojf NEW: ISO C 9x
1201 cprojl NEW: ISO C 9x
1202 creal NEW: ISO C 9x
1203 crealf NEW: ISO C 9x
1204 creall NEW: ISO C 9x
1205 creat64 NEW: LFS
1206 csin NEW: ISO C 9x
1207 csinf NEW: ISO C 9x
1208 csinh NEW: ISO C 9x
1209 csinhf NEW: ISO C 9x
1210 csinhl NEW: ISO C 9x
1211 csinl NEW: ISO C 9x
1212 csqrt NEW: ISO C 9x
1213 csqrtf NEW: ISO C 9x
1214 csqrtl NEW: ISO C 9x
1215 ctan NEW: ISO C 9x
1216 ctanf NEW: ISO C 9x
1217 ctanh NEW: ISO C 9x
1218 ctanhf NEW: ISO C 9x
1219 ctanhl NEW: ISO C 9x
1220 ctanl NEW: ISO C 9x
1221 des_setparity NEW: Secure RPC
1222 ecb_crypt NEW: Secure RPC
1223 endutxent NEW: Unix98
1224 exp10 NEW: ISO C 9x
1225 exp10f NEW: ISO C 9x
1226 exp10l NEW: ISO C 9x
1227 exp2 NEW: ISO C 9x
1228 exp2f NEW: ISO C 9x
1229 exp2l NEW: ISO C 9x
1230 fattach NEW: STREAMS
1231 fdetach NEW: STREAMS
1232 fdim NEW: ISO C 9x
1233 fdimf NEW: ISO C 9x
1234 fdiml NEW: ISO C 9x
1235 feclearexcept NEW: ISO C 9x
1236 fegetenv NEW: ISO C 9x
1237 fegetexceptflag NEW: ISO C 9x
1238 fegetround NEW: ISO C 9x
1239 feholdexcept NEW: ISO C 9x
1240 feof_locked REMOVED
1241 feraiseexcept NEW: ISO C 9x
1242 ferror_locked REMOVED
1243 fesetenv NEW: ISO C 9x
1244 fesetexceptflag NEW: ISO C 9x
1245 fesetround NEW: ISO C 9x
1246 fetestexcept NEW: ISO C 9x
1247 feupdateenv NEW: ISO C 9x
1248 fflush_locked REMOVED
1249 ffsl NEW: GNU ext.
1250 ffsll NEW: GNU ext.
1251 fgetpos64 NEW: LFS
1252 fgets_unlocked NEW: GNU ext.
1253 fileno_locked REMOVED
1254 fma NEW: ISO C 9x
1255 fmaf NEW: ISO C 9x
1256 fmal NEW: ISO C 9x
1257 fmax NEW: ISO C 9x
1258 fmaxf NEW: ISO C 9x
1259 fmaxl NEW: ISO C 9x
1260 fmin NEW: ISO C 9x
1261 fminf NEW: ISO C 9x
1262 fminl NEW: ISO C 9x
1263 fmtmsg NEW: Unix98
1264 fopen64 NEW: LFS
1265 fputc_locked REMOVED
1266 fputs_unlocked NEW: GNU ext.
1267 fread_unlocked NEW: GNU ext.
1268 freopen64 NEW: LFS
1269 fseeko NEW: Unix98
1270 fsetpos64 NEW: LFS
1271 fstatfs64 NEW: LFS
1272 fstatvfs NEW: Unix98
1273 fstatvfs64 NEW: LFS
1274 ftello NEW: Unix98
1275 ftello64 NEW: LFS
1276 ftruncate64 NEW: LFS
1277 ftw64 NEW: LFS
1278 fwrite_unlocked NEW: GNU ext.
1279 gai_strerror NEW: IPv6
1280 gamma_r REMOVED
1281 gammaf_r REMOVED
1282 gammal_r REMOVED
1283 getchar_locked REMOVED
1284 getdate NEW: Unix98
1285 getdate_err NEW: Unix98
1286 getdate_r NEW: GNU ext.
1287 getmsg NEW: STREAMS
1288 getnameinfo NEW: IPv6
1289 getnetname NEW: Secure RPC
1290 getpmsg NEW: STREAMS
1291 getpt NEW: Unix98 PTY
1292 getrlimit64 NEW: LFS
1293 getutxent NEW: Unix98
1294 getutxid NEW: Unix98
1295 getutxline NEW: Unix98
1296 glob64 NEW: GNU ext.
1297 globfree64 NEW: GNU ext.
1298 gnu_get_libc_release NEW: GNU ext.
1299 gnu_get_libc_version NEW: GNU ext.
1300 grantpt NEW: Unix98 PTY
1301 host2netname NEW: Secure RPC
1302 iconv NEW: iconv
1303 iconv_close NEW: iconv
1304 iconv_open NEW: iconv
1305 if_freenameindex NEW: IPv6
1306 if_indextoname NEW: IPv6
1307 if_nameindex NEW: IPv6
1308 if_nametoindex NEW: IPv6
1309 in6addr_any NEW: IPv6
1310 in6addr_loopback NEW: IPv6
1311 inet6_isipv4mapped NEW: IPv6
1312 isastream NEW: STREAMS
1313 iswblank NEW: GNU ext.
1314 key_decryptsession NEW: Secure RPC
1315 key_decryptsession_pk NEW: Secure RPC
1316 key_encryptsession NEW: Secure RPC
1317 key_encryptsession_pk NEW: Secure RPC
1318 key_gendes NEW: Secure RPC
1319 key_get_conv NEW: Secure RPC
1320 key_secretkey_is_set NEW: Secure RPC
1321 key_setnet NEW: Secure RPC
1322 key_setsecret NEW: Secure RPC
1323 llrint NEW: ISO C 9x
1324 llrintf NEW: ISO C 9x
1325 llrintl NEW: ISO C 9x
1326 llround NEW: ISO C 9x
1327 llroundf NEW: ISO C 9x
1328 llroundl NEW: ISO C 9x
1329 log2 NEW: ISO C 9x
1330 log2f NEW: ISO C 9x
1331 log2l NEW: ISO C 9x
1332 lrint NEW: ISO C 9x
1333 lrintf NEW: ISO C 9x
1334 lrintl NEW: ISO C 9x
1335 lround NEW: ISO C 9x
1336 lroundf NEW: ISO C 9x
1337 lroundl NEW: ISO C 9x
1338 lseek64 NEW: LFS
1339 makecontext NEW: Unix98
1340 mempcpy NEW: GNU ext.
1341 mmap64 NEW: LFS
1342 moncontrol REMOVED
1343 modify_ldt NEW: kernel
1344 nan NEW: ISO C 9x
1345 nanf NEW: ISO C 9x
1346 nanl NEW: ISO C 9x
1347 nearbyint NEW: ISO C 9x
1348 nearbyintf NEW: ISO C 9x
1349 nearbyintl NEW: ISO C 9x
1350 netname2host NEW: Secure RPC
1351 netname2user NEW: Secure RPC
1352 nexttoward NEW: ISO C 9x
1353 nexttowardf NEW: ISO C 9x
1354 nexttowardl NEW: ISO C 9x
1355 nftw NEW: Unix98
1356 nftw64 NEW: LFS
1357 open64 NEW: LFS
1358 passwd2des NEW: Secure RPC
1359 pow10 NEW: GNU ext.
1360 pow10f NEW: GNU ext.
1361 pow10l NEW: GNU ext.
1362 pread NEW: Unix98
1363 pread64 NEW: LFS
1364 printf_size NEW: GNU ext.
1365 printf_size_info NEW: GNU ext.
1366 profil_counter REMOVED
1367 pthread_mutexattr_getkind_np REPLACED
1368 pthread_mutexattr_setkind_np REPLACED
1369 ptsname NEW: Unix98 PTY
1370 ptsname_r NEW: Unix98 PTY
1371 putc_locked REMOVED
1372 putchar_locked REMOVED
1373 putgrent NEW: GNU ext.
1374 putmsg NEW: STREAMS
1375 putpmsg NEW: STREAMS
1376 pututxline NEW: Unix98
1377 pwrite NEW: Unix98
1378 pwrite64 NEW: LFS
1379 readdir64 NEW: LFS
1380 readdir64_r NEW: LFS
1381 remquo NEW: ISO C 9x
1382 remquof NEW: ISO C 9x
1383 remquol NEW: ISO C 9x
1384 round NEW: ISO C 9x
1385 roundf NEW: ISO C 9x
1386 roundl NEW: ISO C 9x
1387 rtime NEW: GNU ext.
1388 scalbln NEW: ISO C 9x
1389 scalblnf NEW: ISO C 9x
1390 scalblnl NEW: ISO C 9x
1391 scandir64 NEW: LFS
1392 sendfile NEW: kernel
1393 setcontext NEW: Unix98
1394 setrlimit64 NEW: LFS
1395 setutxent NEW: Unix98
1396 sighold NEW: Unix98
1397 sigignore NEW: Unix98
1398 sigqueue NEW: POSIX.1b
1399 sigrelse NEW: Unix98
1400 sigset NEW: POSIX.1b
1401 sigtimedwait NEW: POSIX.1b
1402 sigwaitinfo NEW: POSIX.1b
1403 sincos NEW: GNU ext.
1404 sincosf NEW: GNU ext.
1405 sincosl NEW: GNU ext.
1406 statfs64 NEW: LFS
1407 statvfs NEW: Unix98
1408 statvfs64 NEW: LFS
1409 strcasestr NEW: GNU ext.
1410 strtoimax NEW: ISO C 9x
1411 strtoumax NEW: ISO C 9x
1412 strverscmp NEW: GNU ext.
1413 svcauthdes_stats NEW: Secure RPC
1414 svcunix_create NEW: sunrpc etx
1415 svcunixfd_create NEW: sunrpc ext
1416 swapcontext NEW: Unix98
1417 tcgetsid NEW: Unix98 PTY
1418 tdestroy NEW: GNU ext.
1419 tgamma NEW: ISO C 9x
1420 tgammaf NEW: ISO C 9x
1421 tgammal NEW: ISO C 9x
1422 tmpfile64 NEW: LFS
1423 trunc NEW: ISO C 9x
1424 truncate64 NEW: LFS
1425 truncf NEW: ISO C 9x
1426 truncl NEW: ISO C 9x
1427 umount2 NEW: kernel
1428 unlockpt NEW: Unix98 PTY
1429 updwtmpx NEW: Unix98
1430 user2netname NEW: Secure RPC
1431 utmpxname NEW: Unix98
1432 versionsort NEW: GNU ext.
1433 versionsort64 NEW: GNU ext.
1434 waitid NEW: Unix98
1435 wcscasecmp NEW: GNU ext.
1436 wcsncasecmp NEW: GNU ext.
1437 wcsnlen NEW: GNU ext.
1438 wcstoimax NEW: ISO C 9x
1439 wcstoll NEW: ISO C 9x
1440 wcstoull NEW: ISO C 9x
1441 wcstoumax NEW: ISO C 9x
1442 wcswcs NEW: Unix98
1443 wordexp NEW: POSIX.2
1444 wordfree NEW: POSIX.2
1445 write_profiling REMOVED
1446 xdecrypt NEW: Secure RPC
1447 xdr_authdes_cred NEW: Secure RPC
1448 xdr_authdes_verf NEW: Secure RPC
1449 xdr_cryptkeyarg NEW: Secure RPC
1450 xdr_cryptkeyarg2 NEW: Secure RPC
1451 xdr_cryptkeyres NEW: Secure RPC
1452 xdr_getcredres NEW: Secure RPC
1453 xdr_key_netstarg NEW: Secure RPC
1454 xdr_key_netstres NEW: Secure RPC
1455 xdr_keybuf NEW: Secure RPC
1456 xdr_keystatus NEW: Secure RPC
1457 xdr_netnamestr NEW: Secure RPC
1458 xdr_sizeof NEW: Secure RPC
1459 xdr_unixcred NEW: sunrpc ext
1460 xencrypt NEW: Secure RPC
1461 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1462 \f
1463 Version 2.0.6
1465 * more bug fixes
1467 \f
1468 Version 2.0.5
1470 * more bug fixes
1472 * inet_ntoa is thread-safe
1474 * updwtmp is moved from libutil to libc
1476 * rewrite of cbrt function
1478 * update of timezone data
1479 \f
1480 Version 2.0.4
1482 * more bug fixes
1483 \f
1484 Version 2.0.3
1486 * more bug fixes
1487 \f
1488 Version 2.0.2
1490 * more bug fixes
1492 * add atoll function
1494 * fix complex problems in Berkeley DB code
1496 * fix math functions
1497 \f
1498 Version 2.0.1
1500 * fixed lots of header problems (especially Linux/GNU specific)
1502 * dynamic loader preserves all registers
1504 * Roland McGrath provided support for handling of auxiliary objects in
1505 the ELF dynamic loader.
1507 * support for parallel builds is improved
1508 \f
1509 Version 2.0
1511 * GNU extensions are no longer declared by default. To enable them you
1512 must define the macro `_GNU_SOURCE' in your program or compile with
1513 `-D_GNU_SOURCE'.
1515 * The library has changed from using GNU ld symbol aliases to using weak
1516 symbols where available. The ELF object file format supports weak
1517 symbols; GNU ld also supports weak symbols in the a.out format. (There
1518 is also now support for other GNU ld extensions in ELF. Use the
1519 `--with-elf' option to configure to indicate you have ELF, and
1520 `--with-gnu-ld' if using GNU ld.) This change resulted in the deletion
1521 of many files which contained only symbol aliases, reducing the size of
1522 the source and the compiled library; many other files were renamed to
1523 less cryptic names previously occupied by the symbol alias files.
1524 There is a new header file <elf.h> for programs which operate on
1525 files in the ELF format.
1527 * Converted to Autoconf version 2, so `configure' has more options.
1528 Run `configure --help' to see the details.
1530 * The library can now be configured to build profiling, highly-optimized
1531 (but undebuggable), and/or shared libraries (ELF with GNU ld only). The
1532 `--enable-profile', `--enable-omitfp', and `--enable-shared' options to
1533 `configure' enable building these extra libraries. The shared library is
1534 built by default when using both ELF and GNU ld. When shared libraries
1535 are enabled, the new library `-ldl' is available for arbitrary run-time
1536 loading of shared objects; its interface is defined in <dlfcn.h>. The
1537 new header file <link.h> gives access to the internals of the run-time
1538 dynamic linker, `ld.so'. The shell script `ldd' is similar to the
1539 application of same name on other systems and it provides information
1540 about dynamically linked binaries.
1542 * The C library now provides the run-time support code for profiling
1543 executables compiled with `-pg'. Programs can control the profiling code
1544 through the interface in <sys/gmon.h>. The `gmon.out' files written by
1545 the GNU C library can be read only by GNU `gprof' (from GNU binutils);
1546 the support for this file format was contributed by David Mosberger-Tang.
1548 * The math code has been replaced with a math library based on fdlibm from
1549 Sun, and modified by JT Conklin and Ulrich Drepper with i387 support, by
1550 Ian Taylor with `float' functions and by Ulrich Drepper with `long double'
1551 functions. The math functions now reside in a separate library, so
1552 programs using them will need to use `-lm' their linking commands.
1554 * John C. Bowman contributed optimized ix87 assembler inline functions.
1556 * Ulrich Drepper has contributed support for an `/etc/nsswitch.conf'
1557 mechanism similar to that found in Solaris 2. This is now used for the
1558 group, passwd, hosts, networks, services, protocols, rpc, ethers,
1559 shadow, netgroup, publickey, and alias databases. The `nsswitch.conf'
1560 file controls what services are used for each individual database. This
1561 works by loading shared libraries with names specified in `nsswitch.conf',
1562 so service modules can be changed or added at any time without even
1563 relinking any program. Currently there are the file, db, and NIS based
1564 NSS services available.
1566 * The new functions `strtoq' and `strtouq' parse integer values from
1567 strings, like `strtol' and `strtoul', but they return `long long int' and
1568 `unsigned long long int' values, respectively (64-bit quantities).
1570 * The new functions `strtof' and `strtold' parse floating-point values from
1571 strings, like `strtod', but they return `float' and `long double' values,
1572 respectively (on some machines `double' and `long double' are the same).
1574 * Ulrich Drepper has contributed new implementations of the floating-point
1575 printing and reading code used in the `printf' family of functions and
1576 `strtod', `strtof', and `strtold'. These new functions are perfectly
1577 accurate, and much faster than the old ones.
1579 * The implementation of the POSIX locale model was completely rewritten by
1580 Ulrich Drepper. This includes the new programs `localedef' and `locale'
1581 to compile the POSIX locale definition.
1583 * The former dummy implementations of the strcoll and strxfrm function are
1584 now replaced by fully functional code contributed by Ulrich Drepper. The
1585 collation information comes from the POSIX locale definitions.
1587 * The new header <langinfo.h> defines an interface for accessing
1588 various locale-dependent data (using the locale chosen with `setlocale').
1590 * Ulrich Drepper has contributed a new suite of functions for operation on
1591 wide-character and multibyte-character strings, in <wchar.h>;
1592 and classification and case conversion of wide characters, in <wctype.h>.
1593 These new functions are conforming to the ISO C, Amendement 1 specification.
1595 * There is now a second implementation of the standard I/O library available.
1596 It comes from GNU libg++ as was written by Per Bothner, heavily modified
1597 by Hongjiu Lu and made thread safe by Ulrich Drepper.
1599 * You can now use positional parameter specifications in format strings
1600 for the `printf' and `scanf' families of functions. For example,
1601 `printf ("Number %2$d, Mr %1$s\n", "Jones", 6);'' prints
1602 ``Number 6, Mr Jones''. This is mainly useful when providing different
1603 format strings for different languages, whose grammars may dictate
1604 different orderings of the values being printed. To support this
1605 feature, the interface for `register_printf_handler' has changed; see
1606 the header file <printf.h> for details.
1608 * The `printf' and `scanf' families of functions now understand a new
1609 formatting flag for numeric conversions: the ' flag (e.g. %'d or %'f) says
1610 to group numbers as indicated by the locale; for `scanf' and friends, this
1611 says to accept as valid only a number with all the proper grouping
1612 separators in the right places. In the default "C" locale, numbers are
1613 not grouped; but locales for specific countries will define the usual
1614 conventions (i.e. separate thousands with `,' in the US locale).
1616 * The pgrp functions have been regularized, slightly incompatibly but much
1617 less confusingly. The core functions are now `getpgid' and `setpgid',
1618 which take arguments for the PID to operate on; the POSIX.1 `getpgrp' (no
1619 argument) and BSD `setpgrp' (identical to `setpgid') functions are
1620 provided for compatibility. There is no longer an incompatible `getpgrp'
1621 with an argument declared under _BSD_SOURCE; no BSD code uses it.
1623 * The new header file <fts.h> and suite of functions simplify programs that
1624 operate on directory trees. This code comes from 4.4 BSD.
1626 * The resolver code has been updated from the BIND 4.9.5-P1 release.
1627 Parts of the code were heavily modified by Ulrich Drepper to fit in the
1628 NSS scheme used in glibc.
1630 * There is a new malloc debugging hook `__memalign_hook'.
1632 * There are new typedefs `ushort' for `unsigned short int' and `uint' for
1633 `unsigned int' in <sys/types.h>. These are for compatibility only and
1634 their use is discouraged.
1636 * The `-lmcheck' library to enable standard malloc debugging hooks is now
1637 done differently, so that it works even without GNU ld.
1639 * New function `euidaccess' checks allowed access to a file like `access',
1640 but using the effective IDs instead of the real IDs.
1642 * The time zone data files have been updated for the latest and greatest
1643 local time conventions of the countries of the world.
1645 * The new function `dirfd' extracts the file descriptor used by a DIR stream;
1646 see <dirent.h>.
1648 * The new functions `ecvt', `fcvt', and `gcvt' provide an obsolete interface
1649 for formatting floating-point numbers. They are provided only for
1650 compatibility; new programs should use `sprintf' instead. There are
1651 also equivalent function for the `long double' floating-point type and
1652 all functions also exist in a reentrant form.
1654 * The new auxiliary library `-lutil' from 4.4 BSD contains various
1655 functions for maintaining the login-record files (primarily of use to
1656 system programs such as `login'), and convenient functions for
1657 allocating and initializing a pseudo-terminal (pty) device.
1659 * Ulrich Drepper has contributed new support for System V style
1660 shared memory and IPC on systems that support it.
1662 * Ulrich Drepper has contributed several miscellaneous new functions found
1663 in System V: The `hsearch' family of functions provide an effective
1664 implementation of hash tables; `a64l' and `l64a' provide a very simple
1665 binary to ASCII mapping; `drand48' and friends provide a 48-bit random
1666 number generator.
1668 * Ulrich Drepper has contributed new reentrant counterparts for the
1669 `random' and `hsearch' families of functions; `random_r', `hsearch_r', etc.
1671 * Ulrich Drepper has contributed new, highly-optimized versions of several
1672 string functions for the i486/Pentium family of processors.
1674 * Ulrich Drepper has updated the Linux-specific code, based largely
1675 on work done in Hongjiu Lu's version of GNU libc for Linux.
1676 The GNU library now supports Linux versions 2.0.10 and later,
1677 using the ELF object file format (i[3456]86-*-linux).
1679 * Andreas Schwab has ported the C library to Linux/m68k (m68k-*-linux).
1681 * David Mosberger-Tang and Richard Henderson have ported the C library
1682 to Linux/Alpha (alpha-*-linux). Richard Henderson contributed the
1683 dynamic linking support for ELF/Alpha.
1685 * Richard Henderson contributed several Alpha optimized assembler function
1686 for arithmetic and string handling.
1688 * Ulrich Drepper has contributed a new set of message catalog functions to
1689 support multiple languages using the <libintl.h> interface, for use with
1690 his new package GNU gettext. Translation volunteers have contributed
1691 catalogs of the library's messages in Spanish, German, and Korean.
1693 * For compatibility with XPG4, Ulrich Drepper has contributed the `gencat'
1694 program and the `catgets' function for reading the catalog files it
1695 creates. (The <libintl.h> interface is preferred; we include the
1696 <nl_types.h> interface using `catgets' only for source compatibility with
1697 programs already written to use it.)
1699 * New header file <values.h> gives SVID-compatible names for <limits.h>
1700 constants.
1702 * Various new macros, declarations, and small header files for compatibility
1703 with 4.4 BSD.
1705 * New function `group_member' is a convenient way to check if a process has
1706 a given effective group ID.
1708 * When using GCC 2.7 and later, the socket functions are now declared in a
1709 special way so that passing an argument of type `struct sockaddr_in *',
1710 `struct sockaddr_ns *', or `struct sockaddr_un *' instead of the generic
1711 `struct sockaddr *' type, does not generate a type-clash warning.
1713 * New function `error' declared in header file <error.h> is a convenient
1714 function for printing error messages and optionally exiting; this is the
1715 canonical function used in GNU programs. The new functions `err', `warn',
1716 and friends in header file <err.h> are the canonical 4.4 BSD interface for
1717 doing the same thing.
1719 * The <glob.h> interface has several new flags from 4.4 BSD that extend the
1720 POSIX.2 `glob' function to do ~ and {...} expansion.
1722 * New function `unsetenv' complements `setenv' for compatibility with 4.4 BSD.
1723 `clearenv' which is used in POSIX.9 is also available.
1725 * New function `getsid' returns session ID number on systems that support it.
1727 * We have incorporated the 4.4 BSD `db' library (version 1.85). New header
1728 files <db.h> and <mpool.h> provide a rich set of functions for several
1729 types of simple databases stored in memory and in files, and <ndbm.h> is
1730 an old `ndbm'-compatible interface using the `db' functions. Link with
1731 `-ldb' to get these functions.
1733 * New macro `strdupa' copies a string like `strdup', but uses local stack
1734 space from `alloca' instead of dynamic heap space from `malloc'.
1736 * New function `strnlen' is like `strlen' but searches only a given maximum
1737 number of characters for the null terminator. `stpncpy', `strndup' and
1738 `strndupa' are similar variants for the `stpcpy', `strdup' and `strdupa'
1739 function.
1741 * New function `statfs' in header <sys/statfs.h>.
1743 * The new <argz.h> and <envz.h> interfaces contributed by Miles Bader
1744 provide convenient functions for operating on blocks of null-terminated
1745 strings.
1747 * A new suite of functions in <utmp.h> handle all the details of reading
1748 and writing the utmp file.
1750 * An implementation of the NIS/YP(tm) based NSS service was contributed by
1751 Thorsten Kukuk.
1753 * Paul Eggert and Ulrich Drepper modified the `strftime' function to be
1754 completely POSIX compliant and also implemented the extended functionality
1755 to handle alternate digit representation and alternate era date formats.
1757 * Ulrich Drepper provided an implementation of the `strptime' function
1758 defined in XPG4.2 which transforms a string into a `struct tm' value.
1760 * Paul Eggert provided the tzselect shell script as part of the timezone
1761 code. The shell script makes it easy to select the correct timezone
1762 specification.
1764 * The implementation of the malloc family of functions is completely replaced
1765 by a new implementation by Doug Lea with many improvements by Wolfram Gloger.
1766 The implementation uses the mmap function (if available) and it is
1767 optimized for the use in multi threaded programs.
1769 * Ulrich Drepper contributed a MD5 "encryption" for the crypt family of
1770 functions. This new functionality is usable by specifying a special
1771 salt string and it is compatible with implementation on *BSD systems.
1773 * Lots of functions from the XPG4.2 standard were added by Ulrich Drepper:
1774 `getsubopt' to handle second level command line options, `bsd_signal'
1775 to access BSD style `signal' functionality, the obsolete `regexp' style
1776 expression matcher.
1778 * the `lchown' function is available on system which support this
1779 functionality.
1781 * The implementation of the shadow password handling function was contributed
1782 by Ulrich Drepper.
1784 * David Mosberger-Tang changed the SunRPC implementation to be 64bit safe.
1786 * POSIX.1g support was added. The <sys/select.h> header is available,
1787 `isfdtype' and `pselect' are implemented. Craig Metz contributed an
1788 implementation of `getaddrinfo'.
1789 \f
1790 Version 1.09
1792 * For cross-compilation you should now set `BUILD_CC' instead of `HOST_CC'.
1794 * New header file <fstab.h> and new functions `getfsspec', `getfsent' and
1795 friends, for parsing /etc/fstab. This code comes from 4.4 BSD.
1797 * The new function `daemon' from 4.4 BSD is useful for server programs that
1798 want to put themselves in the background.
1800 * Joel Sherrill has contributed support for several standalone boards that
1801 run without an operating system.
1803 * `printf', `scanf' and friends now accept a `q' type modifier for long
1804 long int as well as `ll'. Formats using these might be `%qu' or `%lld'.
1806 * All of the code taken from BSD (notably most of the math and networking
1807 routines) has been updated from the BSD 4.4-Lite release.
1809 * The resolver code has been updated from the BIND-4.9.3-BETA9 release.
1811 * The new functions `getdomainname' and `setdomainname' fetch or change the
1812 YP/NIS domain name. These are system calls which exist on systems which
1813 have YP (aka NIS).
1815 * The time zone data files have been updated for the latest international
1816 conventions.
1818 * The SunRPC programs `portmap' and `rpcinfo' are now installed in
1819 $(sbindir) (usually /usr/local/sbin) instead of $(bindir).
1820 \f
1821 Version 1.08
1823 * The C library now includes support for Sun RPC, from Sun's free
1824 RPCSRC-4.0 distribution. The `portmap', `rpcinfo', and `rpcgen' programs
1825 are included. (There is still no support for YP.)
1827 * Tom Quinn has contributed a port of the C library to SGI machines running
1828 Irix 4 (mips-sgi-irix4).
1830 * The new `lockf' function is a simplified interface to the locking
1831 facilities of `fcntl', included for compatibility.
1833 * New time functions `timegm', `timelocal', and `dysize' for compatibility.
1835 * New header file <sys/timeb.h> and new function `ftime' for compatibility.
1837 * New header files <poll.h> and <sys/poll.h> and new function `poll' for
1838 compatibility.
1840 * The error message printed by `assert' for a failed assertion now includes
1841 the name of the program (if using GNU ld) and the name of the calling
1842 function (with versions of GCC that support this).
1844 * The `psignal' function is now declared in <signal.h>, not <stdio.h>.
1846 * The library now includes the <sys/mman.h> header file and memory
1847 management functions `mmap', `munmap', `mprotect', `msync', and
1848 `madvise', on systems that support those facilities.
1850 * The interface for `mcheck' has changed slightly: the function called to
1851 abort the program when an allocation inconsistency is detected now takes
1852 an argument that indicates the type of failure. The new function
1853 `mprobe' lets you request a consistency check for a particular block at
1854 any time (checks are normally done only when you call `free' or `realloc'
1855 on a block).
1857 * It is now possible to easily cross-compile the C library, building on one
1858 system a library to run on another machine and/or operating system. All
1859 you need to do is set the variable `HOST_CC' in `configparms' to the
1860 native compiler for programs to run on the machine you are building on (a
1861 few generator programs are used on Unix systems); set `CC' to the
1862 cross-compiler.
1864 * The new function `fexecve' (only implemented on the GNU system) executes
1865 a program file given a file descriptor already open on the file.
1866 \f
1867 Version 1.07
1869 * Brendan Kehoe has contributed most of a port to the DEC Alpha
1870 running OSF/1 (alpha-dec-osf1). He says it is 75% complete.
1872 * You can set the variable `libprefix' in `configparms' to specify a prefix
1873 to be prepended to installed library files; this makes it easy to install
1874 the GNU C library to be linked as `-lgnuc' or whatever.
1876 * The new `stpncpy' is a cross between `stpcpy' and `strncpy': It
1877 copies a limited number of characters from a string, and returns the
1878 address of the last character written.
1880 * You no longer need to check for whether the installed `stddef.h' is
1881 compatible with the GNU C library. configure now checks for you.
1883 * You can now define a per-stream `fileno' function to convert the
1884 stream's cookie into an integral file descriptor.
1886 * ``malloc (0)'' no longer returns a null pointer. Instead, it
1887 allocates zero bytes of storage, and returns a unique pointer which
1888 you can pass to `realloc' or `free'. The behavior is undefined if
1889 you dereference this pointer.
1891 * The C library now runs on Sony NEWS m68k machines running either
1892 NewsOS 3 or NewsOS 4.
1894 * The new `syscall' function is a system-dependent primitive function
1895 for invoking system calls. It has the canonical behavior on Unix
1896 systems, including unreliable return values for some calls (such as
1897 `pipe', `fork' and `getppid').
1899 * The error code `EWOULDBLOCK' is now obsolete; it is always defined
1900 to `EAGAIN', which is the preferred name. On systems whose kernels
1901 use two distinct codes, the C library now translates EWOULDBLOCK to
1902 EAGAIN in every system call function.
1903 \f
1904 Version 1.06
1906 * The GNU C Library Reference Manual is now distributed with the library.
1907 `make dvi' will produce a DVI file of the printed manual.
1908 `make info' will produce Info files that you can read on line using C-h i
1909 in Emacs or the `info' program.
1910 Please send comments on the manual to bug-glibc-manual@gnu.org.
1912 * The library now supports SVR4 on i386s (i386-unknown-sysv4).
1914 * Brendan Kehoe has contributed a port to Sun SPARCs running Solaris 2.
1916 * Jason Merrill has contributed a port to the Sequent Symmetry running
1917 Dynix version 3 (i386-sequent-dynix).
1919 * The library has been ported to i386s running SCO 3.2.4 (also known as SCO
1920 ODT 2.0; i386-unknown-sco3.2.4) or SCO 3.2 (i386-unknown-sco3.2).
1922 * New function `memory_warnings' lets you arrange to get warnings when
1923 malloc is running out of memory to allocate, like Emacs gives you.
1925 * The C library now contains the relocating allocator used in Emacs 19 for
1926 its editing buffers. This allocator (ralloc) minimizes allocation
1927 overhead and fragmentation by moving allocated regions around whenever it
1928 needs to. You always refer to a ralloc'd region with a "handle" (a
1929 pointer to a pointer--an object of type `void **').
1931 * There is a new `printf' format: `%m' gives you the string corresponding
1932 to the error code in `errno'.
1934 * In `scanf' formats, you can now use `%as' or `%a[' to do the normal `%s'
1935 or `%[' conversion, but instead of filling in a fixed-sized buffer you
1936 pass, the `a' modifier says to fill in a `char **' you pass with a
1937 malloc'd string.
1939 * The `fnmatch' function supports the new flag bits `FNM_LEADING_DIR' and
1940 `FNM_CASEFOLD'. `FNM_LEADING_DIR' lets a pattern like `foo*' match a
1941 name like `foo/bar'. `FNM_CASEFOLD' says to ignore case in matching.
1943 * `mkstemp' is a traditional Unix function to atomically create and open a
1944 uniquely-named temporary file.
1945 \f
1946 Version 1.05
1948 * The standard location for the file that says what the local timezone is
1949 has changed again. It is now `/usr/local/etc/localtime' (or more
1950 precisely, `${prefix}/etc/localtime') rather than `/etc/localtime'.
1952 * The distribution no longer contains any files with names longer than 14
1953 characters.
1955 * `struct ttyent' has two new flag bits: TTY_TRUSTED and TTY_CONSOLE.
1956 These are set by the new `trusted' and `console' keywords in `/etc/ttys'.
1958 * New functions `ttyslot' and `syslog' from 4.4 BSD.
1959 \f
1960 Version 1.04
1962 * The configuration process has changed quite a bit. The `configure'
1963 script is now used just like the configuration scripts for other GNU
1964 packages. The `sysdeps' directory hierarchy is much rearranged.
1965 The file `INSTALL' explains the new scheme in detail.
1967 * The header files no longer need to be processed into ANSI C and
1968 traditional C versions. There is just one set of files to install, and
1969 it will work with ANSI or old C compilers (including `gcc -traditional').
1971 * Brendan Kehoe and Ian Lance Taylor have ported the library to the
1972 MIPS DECStation running Ultrix 4.
1974 * The Sun 4 startup code (crt0) can now properly load SunOS 4 shared libraries.
1975 Tom Quinn contributed the initial code. The GNU C library can NOT yet be
1976 made itself into a shared library.
1978 * Yet further improved support for the i386, running 4.3 BSD-like systems
1979 (such as Mach 3 with the Unix single-server), or System V.
1981 * New function `strncasecmp' to do case-insensitive string comparison
1982 with limited length.
1984 * New function `strsep' is a reentrant alternative to `strtok'.
1986 * New functions `scandir' and `alphasort' for searching directories.
1988 * New function `setenv' is a better interface to `putenv'.
1990 * Ian Lance Taylor has contributed an implementation of the SVID `ftw'
1991 function for traversing a directory tree.
1993 * The GNU obstack package is now also part of the C library.
1994 The new function `open_obstack_stream' creates a stdio stream that
1995 writes onto an obstack; `obstack_printf' and `obstack_vprintf' do
1996 formatted output directly to an obstack.
1998 * Miscellaneous new functions: reboot, nice, sigaltstack (4.4 BSD only),
1999 cfmakeraw, getusershell, getpass, swab, getttyent, seteuid, setegid.
2001 * `FNM_FILE_NAME' is another name for `FNM_PATHNAME', used with `fnmatch'.
2003 * The new functions `strfry' and `memfrob' do mysterious and wonderful
2004 things to your strings.
2006 * There are some new test programs: test-fseek, testmb, and testrand.
2008 * Some work has been done to begin porting the library to 4.4 BSD and Linux.
2009 These ports are not finished, but are a good starting place for really
2010 supporting those systems.
2012 * `/etc/localtime' is now the standard location for the file that says what
2013 the local timezone is, rather than `/usr/local/lib/zoneinfo/localtime'.
2014 This follows the general principle that `/etc' is the place for all local
2015 configuration files.
2017 * The C library header files now use `extern "C"' when used by the C++
2018 compiler, so the C library should now work with C++ code.
2020 * The header file <bstring.h> is gone. <string.h> now declares bcopy,
2021 bcmp, bzero, and ffs. (Update: nowadays these functions are declared
2022 in <strings.h>.)
2024 * Mike Haertel (of GNU e?grep and malloc fame) has written a new sorting
2025 function which uses the `merge sort' algorithm, and is said to be
2026 significantly faster than the old GNU `qsort' function. Merge sort is
2027 now the standard `qsort' function. The new algorithm can require a lot
2028 of temporary storage; so, the old sorting function is called when the
2029 required storage is not available.
2031 * The C library now includes Michael Glad's Ultra Fast Crypt, which
2032 provides the Unix `crypt' function, plus some other entry points.
2034 * The code and header files taken from 4.4 BSD have been updated with the
2035 latest files released from Berkeley.
2036 \f
2037 ----------------------------------------------------------------------
2038 Copyright information:
2040 Copyright (C) 1992-2009, 2010, 2011 Free Software Foundation, Inc.
2042 Permission is granted to anyone to make or distribute verbatim copies
2043 of this document as received, in any medium, provided that the
2044 copyright notice and this permission notice are preserved,
2045 thus giving the recipient permission to redistribute in turn.
2047 Permission is granted to distribute modified versions
2048 of this document, or of portions of it,
2049 under the above conditions, provided also that they
2050 carry prominent notices stating who last changed them.
2051 \f
2052 Local variables:
2053 version-control: never
2054 fill-column: 76
2055 End: