1 GNU C Library NEWS -- history of user-visible changes. 2011-5-21
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.
10 * The following bugs are resolved with this release:
12 386, 6420, 7101, 9730, 9732, 9809, 10138, 10149, 10157, 11257, 11258,
13 11487, 11532, 11578, 11653, 11668, 11697, 11724, 11820, 11837, 11857,
14 11869, 11892, 11895, 11901, 11945, 11947, 11952, 11987, 12052, 12083,
15 12158, 12178, 12200, 12346, 12393, 12420, 12432, 12445, 12449, 12453,
16 12454, 12460, 12469, 12489, 12509, 12510, 12511, 12518, 12527, 12541,
17 12545, 12551, 12582, 12583, 12587, 12597, 12601, 12611, 12625, 12626,
18 12631, 12650, 12653, 12655, 12660, 12681, 12685, 12711, 12713, 12714,
19 12717, 12723, 12724, 12734, 12738, 12746, 12766, 12775, 12777, 12788,
22 * The RPC implementation in libc is obsoleted. Old programs keep working
23 but new programs cannot be linked with the routines in libc anymore.
24 Programs in need of RPC functionality must be linked against TI-RPC.
25 The TI-RPC implemtation is IPv6 enabled and there are other benefits.
27 Visible changes of this change include (obviously) the inability to link
28 programs using RPC functions without referencing the TI-RPC library and the
29 removal of the RPC headers from the glibc headers.
30 Implemented by Ulrich Drepper.
32 * New Linux interfaces: clock_adjtime, name_to_handle_at, open_by_handle_at,
35 * New locales: os_RU, bem_ZA, en_ZA, ff_SN, sw_KE, sw_TZ, lb_LU, wae_CH,
36 yue_HK, lij_IT, mhr_RU
38 * New encodings: CP770, CP771, CP772, CP773, CP774
42 * The following bugs are resolved with this release:
44 3268, 6812, 7066, 10085, 10484, 10563, 10851, 11149, 11155, 11611, 11640,
45 11655, 11701, 11840, 11856, 11883, 11903, 11904, 11968, 11979, 12005,
46 12037, 12067, 12077, 12078, 12092, 12093, 12107, 12108, 12113, 12140,
47 12159, 12167, 12191, 12194, 12201, 12204, 12205, 12207, 12348, 12378,
50 * New Linux interfaces: prlimit, prlimit64, fanotify_init, fanotify_mark
52 * POWER7 optimizations: memset, memcmp, strncmp
54 * New optimized string functions for x86-64: strnlen (SSE2),
55 strcasecmp (SSE2, SSSE3, SSE4.2), strncasecmp (SSE2, SSSE3, SSE4.2)
56 Implemented by Ulrich Drepper.
60 * The following bugs are resolved with this release:
62 3662, 4457, 5553, 10162, 10401, 10414, 10554, 10824, 10864, 10915, 10918,
63 10936, 10939, 10958, 10968, 10969, 10972, 10992, 11000, 11001, 11007,
64 11010, 11027, 11039, 11040, 11041, 11043, 11046, 11056, 11070, 11093,
65 11115, 11120, 11125, 11126, 11127, 11134, 11141, 11149, 11183, 11184,
66 11185, 11186, 11187, 11188, 11189, 11190, 11191, 11192, 11193, 11194,
67 11200, 11230, 11235, 11242, 11254, 11258, 11271, 11272, 11276, 11279,
68 11287, 11292, 11319, 11332, 11333, 11387, 11389, 11390, 11394, 11397,
69 11410, 11438, 11449, 11470, 11471, 11520, 11537, 11538, 11571
71 * New interfaces: pthread_getname_np, pthread_setname_np
73 * New Linux interface: recvmmsg
75 * STT_GNU_IFUNC implemented for Sparc by David Miller.
77 * The dynamic linker now recognizes supported ABI versions from the
78 EI_ABIVERSION field in the ELF header.
79 Implemented by Ulrich Drepper.
81 * New NIS mode selector ADJUNCT_AS_SHADOW. The passwd.adjunct.byname table
82 will not be used to fill in password fields in the passwd.byname replies.
83 Instead it is used to synthesize the shadow.byname table, should it be
84 missing. This is a useful mode in some installations involving Solaris.
85 Implemented by Ulrich Drepper.
87 * New locales: kok_IN, sq_MK, cv_RU
91 * The following bugs are resolved with this release:
93 3270, 7094, 9924, 9986, 10011, 10085, 10107, 10159, 10162, 10166, 10183,
94 10195, 10196, 10200, 10203, 10207, 10211, 10213, 10217, 10221, 10229,
95 10262, 10286, 10312, 10315, 10319, 10349, 10360, 10391, 10402, 10416,
96 10418, 10422, 10425, 10446, 10448, 10452, 10540, 10553, 10560, 10564,
97 10609, 10643, 10692, 10713, 10717, 10730, 10731, 10742, 10780, 10784,
98 10789, 10817, 10823, 10840, 10847
100 * New interfaces: execvpe, pthread_sigqueue, mkstemps, mkstemps64, mkostemps,
102 Implemented by Ulrich Drepper.
104 * Checking version of longjmp added that fails if an uninitialized stack
105 frame would be created. Implemented by Ulrich Drepper.
107 * STT_GNU_IFUNC is now supported in static executables.
108 Implemented by H.J. Lu.
110 * STT_GNU_IFUNC implemented for PPC by Alan Modra.
112 * New optimized string functions for x86-64: strstr, strcasestr, memcmp,
113 strcspn, strpbrk, strspn, strcpy, stpcpy, strncpy, strcmp (SSE2, SSE4.2),
114 strncmp (SSE2, SSE4.2), strchr (SSE4.2), strrchr (SSE4.2).
115 Contributed by H.J. Lu.
117 strlen, rawmemchr, strcmp (SSSE3), strncmp (SSSE3).
118 Implemented by Ulrich Drepper.
120 * New optimized string functions for x86: strlen, strcspn, strspn, strpbrk,
122 Contributed by H.J. Lu.
124 * Support for fma instruction in AVX on x86-64.
125 Implemented by H.J. Lu and Ulrich Drepper.
127 * AVX support in x86-64 auditing support in ld.so.
128 Implemented by H.J. Lu.
130 * STB_GNU_UNIQUE support added.
131 Implemented by Ulrich Drepper.
133 * Implement second fallback mode for optimized DNS lookup for even more
134 broken environments. If two requests from the same port are not
135 handled correctly close the socket and open a new one before sending
136 the second request. The 'single-request-reopen' option in /etc/resolv.conf
137 can be used to select this mode right away, instead of rediscovering the
138 necessity is every process again.
139 Implemented by Ulrich Drepper.
141 * New resolver flag RES_USE_DNSSEC to enable use of verified lookup.
142 Implemented by Adam Tkac.
144 * Optimized iconv conversions for S390x.
145 Implemented by Andreas Krebbel.
147 * Using condvars with PI mutexes is now more efficient due to kernel
148 support for requeueing to PI futexes. NPTL support added for x86-64.
149 Implemented by Ulrich Drepper.
151 * New locales: ps_AF, my_MM
155 * The following bugs are resolved with this release:
157 697, 5381, 5807, 6411, 6545, 7040, 7058, 7067, 7080, 7083, 7095, 7098,
158 9677, 9694, 9697, 9701, 9704, 9705, 9706, 9720, 9726, 9730, 9733, 9736,
159 9741, 9750, 9753, 9759, 9781, 9791, 9793, 9823, 9833, 9844, 9880, 9881,
160 9891, 9893, 9895, 9913, 9916, 9920, 9948, 9955, 9957, 9963, 9985, 10052,
161 10069, 10086, 10087, 10090, 10092, 10093, 10100, 10118, 10128
163 * New interfaces: preadv, preadv64, pwritev, pwritev64, malloc_info
164 Implemented by Ulrich Drepper.
166 * New Linux interfaces: accept4, fallocate, fallocate64.
167 Implemented by Ulrich Drepper.
169 * Correct declarations of string function when used in C++ code. This
170 could lead to compile errors for invalid C++ code.
172 * XPG7/POSIX 2008 compilation environment. Many GNU-specific functions are
175 * New POSIX 2008 interface: psiginfo
176 Implemented by Ulrich Drepper.
178 * New ISO C++1x interfaces: quick_exit, at_quick_exit
179 Implemented by Ulrich Drepper.
181 * Support for selecting between multiple function definitions at runtime
182 using STT_GNU_IFUNC symbols. Implemented by Ulrich Drepper.
184 * The libcrypt library can now use the hash function implementations in
185 NSS. Implemented by Ulrich Drepper.
187 * The malloc implementation can be compiled to be less memory efficient
188 but higher performing in multi-threaded programs.
189 Implemented by Ulrich Drepper.
191 * New locales: nan_TW@latin, ks_IN
193 * Faster strlen, strchr, strchrnul, strrchr, memchr, and rawmemchr for x86-64.
194 Implemented by Ulrich Drepper.
196 * Extended printf hook support. It is possible to use user-defined types
197 and extend existing format specifiers.
198 Implemented by Ulrich Drepper.
200 * Handling for group shadow files has been added.
201 Implemented by Ulrich Drepper.
203 * DNS IPv4-IPv6 parallel lookup now deals better with broken DNS
204 servers (the case, e.g., for some people using the built-in DNS
205 server in ADSL modems/routers). There is a once-per-process timeout
206 in case of a broken server. To avoid it, users can run nscd or put
207 'options single-request' in /etc/resolv.conf.
208 Implemented by Ulrich Drepper.
212 * The following bugs are resolved with this release:
214 3406, 5209, 5210, 5381, 5794, 5814, 5911, 6428, 6438, 6442, 6447, 6461,
215 6472, 6505, 6544, 6589, 6612, 6634, 6653, 6654, 6657, 6698, 6712, 6713,
216 6719, 6723, 6724, 6740, 6763, 6771, 6790, 6791, 6817, 6824, 6839, 6843,
217 6845, 6856, 6857, 6860, 6867, 6875, 6919, 6920, 6942, 6947, 6955, 6966,
218 6968, 6974, 6980, 6995, 7008, 7009, 7029
220 * Unified lookup for getaddrinfo: IPv4 and IPv6 addresses are now looked
221 up at the same time. Implemented by Ulrich Drepper.
223 * TLS descriptors for LD and GD on x86 and x86-64.
224 Implemented by Alexandre Oliva.
226 * getaddrinfo now handles DCCP and UDPlite.
227 Implemented by Ulrich Drepper.
229 * New fixed-size conversion macros: htobe16, htole16, be16toh, le16toh,
230 htobe32, htole32, be32toh, le32toh, htobe64, htole64, be64toh, le64toh.
231 Implemented by Ulrich Drepper.
233 * New implementation of memmem, strstr, and strcasestr which is O(n).
234 Implemented by Eric Blake.
236 * New Linux interfaces: inotify_init1, dup3, epoll_create1, pipe2
238 * Implement "e" option for popen to open file descriptor with the
239 close-on-exec flag set. Implemented by Ulrich Drepper.
241 * Implement "b" mode for fmemopen. In this mode writes writes don't
242 implicitly add a NUL byte and seeks from the end of the buffer really
243 use the buffer end, not the string length as the basis.
244 Implemented by Ulrich Drepper.
246 * Many functions, exported and internal, now atomically set the close-on-exec
247 flag when run on a sufficiently new kernel. Implemented by Ulrich Drepper.
249 * Sorting rules for some Indian languages (Kannada, Gurumukhi, Telugu,
251 Implemented by Pravin Satpute.
253 * New locales: sd_IN, sd_IN@devanagari, ks_IN@devanagari, ht_HT, en_AG, nl_AW.
257 * The following bugs are resolved with this release:
259 2549, 3112, 4314, 4407, 4997, 5012, 5040, 5112, 5204, 5208, 5209, 5220,
260 5222, 5224, 5225, 5237, 5238, 5240, 5245, 5277, 5346, 5375, 5378, 5382,
261 5424, 5427, 5428, 5435, 5436, 5439, 5441, 5442, 5443, 5451, 5452, 5454,
262 5455, 5463, 5464, 5465, 5475, 5477, 5478, 5520, 5541, 5545, 5553, 5600,
263 5602, 5607, 5614, 5627, 5628, 5736, 5737, 5741, 5753, 5760, 5762, 5768,
264 5774, 5777, 5778, 5779, 5786, 5790, 5818, 5854, 5857, 5903, 5939, 5979,
265 5983, 5995, 5998, 6004, 6007, 6020, 6021, 6024, 6040, 6042
267 * New locales: bo_CN, bo_IN, shs_CA.
269 * New encoding: HP-ROMAN9, HP-GREEK8, HP-THAI8, HP-TURKISH8.
271 * Sorting rules for some Indian languages (Devanagari and Gujarati).
272 Implemented by Pravin Satpute.
274 * IPV6 addresses in /etc/resolv.conf can now have a scope ID
276 * nscd caches now all timeouts for DNS entries
277 Implemented by Ulrich Drepper.
279 * nscd is more efficient and wakes up less often.
280 Implemented by Ulrich Drepper.
282 * More checking functions: asprintf, dprintf, obstack_printf, vasprintf,
283 vdprintf, and obstack_vprintf.
284 Implemented by Jakub Jelinek.
286 * Faster memset for x86-64.
287 Implemented by Harsha Jagasia and H.J. Lu.
289 * Faster memcpy on x86.
290 Implemented by Ulrich Drepper.
292 * ARG_MAX is not anymore constant on Linux. Use sysconf(_SC_ARG_MAX).
293 Implemented by Ulrich Drepper.
295 * Faster sqrt and sqrtf implemention for some PPC variants.
296 Implemented by Stephen Munroe.
300 * The following bugs are resolved with this release:
302 4125, 4126, 4178, 4359, 4407, 4512, 4514, 4525, 4554, 4556, 4557, 4566,
303 4582, 4586, 4588, 4599, 4610, 4647, 4702, 4705, 4726, 4745, 4772, 4773,
304 4775, 4776, 4792, 4813, 4814, 4816, 4833, 4858, 4860, 4896, 4905, 4925,
305 4936, 4937, 4938, 4941, 4946, 4963, 4972, 5010, 5028, 5043, 5058, 5063,
306 5071, 5103, 5104, 5112, 5113, 5184, 5186
308 * More checking functions: fread, fread_unlocked, open*, mq_open.
309 Implemented by Jakub Jelinek and Ulrich Drepper.
311 * Extend fortification to C++. Implemented by Jakub Jelinek.
313 * Implement 'm' modifier for scanf. Add stricter C99/SUS compliance
314 by not recognizing 'a' as a modifier when those specs are requested.
315 Implemented by Jakub Jelinek.
317 * PPC optimizations to math and string functions.
318 Implemented by Steven Munroe.
320 * New interfaces: mkostemp, mkostemp64. Like mkstemp* but allow additional
321 options to be passed. Implemented by Ulrich Drepper.
323 * More CPU set manipulation functions. Implemented by Ulrich Drepper.
325 * New Linux interfaces: signalfd, eventfd, eventfd_read, and eventfd_write.
326 Implemented by Ulrich Drepper.
328 * Handle private futexes in the NPTL implementation.
329 Implemented by Jakub Jelinek and Ulrich Drepper.
331 * Add support for O_CLOEXEC. Implement in Hurd. Use throughout libc.
332 Implemented by Roland McGrath and Ulrich Drepper.
334 * Linux/x86-64 vDSO support. Implemented by Ulrich Drepper.
336 * SHA-256 and SHA-512 based password encryption.
337 Implemented by Ulrich Drepper.
339 * New locales: ber_DZ, ber_MA, en_NG, fil_PH, fur_IT, fy_DE, ha_NG, ig_NG,
340 ik_CA, iu_CA, li_BE, li_NL, nds_DE, nds_NL, pap_AN, sc_IT, tk_TM, ug_CN,
343 + New iconv modules: MAC-CENTRALEUROPE, ISO-8859-9E, KOI8-RU.
344 Implemented by Ulrich Drepper.
348 * The following bugs are resolved with this release:
350 3156, 3213, 3285, 3291, 3306, 3313, 3320, 3322, 3325, 3326, 3334, 3348,
351 3352, 3363, 3369, 3426, 3427, 3429, 3451, 3458, 3465, 3480, 3483, 3493,
352 3514, 3515, 3559, 3632, 3664, 3673, 3674, 3745, 3747, 3818, 3840, 3842,
353 3851, 3855, 3884, 3885, 3902, 3905, 3919, 3944, 3954, 3955, 3957, 3991,
354 3995, 3996, 4024, 4040, 4069, 4070, 4074, 4076, 4096, 4101, 4102, 4114,
355 4130, 4131, 4181, 4276, 4306, 4342, 4344, 4349, 4364, 4368, 4381, 4392,
356 4403, 4405, 4406, 4411, 4438, 4439, 4455, 4456, 4465, 4512, 4514, 4586,
359 * New Linux interfaces: epoll_pwait, sched_getcpu.
361 * New generic interfaces: strerror_l.
363 * nscd can now cache the services database. Implemented by Ulrich Drepper.
367 * The following bugs are resolved with this release:
369 39, 68, 192, 352, 388, 531, 935, 1006, 1201, 1203, 1386, 1782, 1783, 1784,
370 1785, 1786, 1787, 1951, 1974, 1996, 2072, 2098, 2125, 2134, 2158, 2182,
371 2349, 2376, 2386, 2389, 2415, 2418, 2420, 2423, 2450, 2451, 2466, 2472,
372 2473, 2477, 2498, 2499, 2501, 2502, 2505, 2507, 2508, 2509, 2517, 2526,
373 2569, 2571, 2592, 2611, 2625, 2632, 2644, 2662, 2680, 2683, 2684, 2693,
374 2695, 2703, 2734, 2751, 2764, 2766, 2775, 2792, 2821, 2823, 2832, 2841,
375 2843, 2883, 2892, 2908, 2914, 2926, 2961, 2978, 2980, 2987, 2997, 2998,
376 3013, 3018, 3034, 3040, 3044, 3123, 3124, 3137, 3138, 3143, 3155, 3189,
377 3225, 3251, 3252, 3253, 3273
379 * For Linux, the sorting of addresses returned by getaddrinfo now also
380 handles rules 3, 4, and 7 from RFC 3484. I.e., all rules are handled.
381 Implemented by Ulrich Drepper.
383 * Allow system admin to configure getaddrinfo with the /etc/gai.conf file.
384 Implemented by Ulrich Drepper.
386 * New Linux interfaces: splice, tee, sync_file_range, vmsplice.
388 * New iconv module for MIK. Contributed by Alexander Shopov.
390 * For sites with broken group and/or passwd database, the auto-propagate
391 option of nscd can prevent creating ID lookup entries from the results
392 of a name lookup and vice versa. This usually is no problem but some
393 site might have problems with the default behavior.
394 Implemented by Ulrich Drepper.
396 * Iterating over entire database in NIS can be slow. With the
397 SETENT_BATCH_READ option in /etc/default/nss a system admin can decide
398 to trade time for memory. The entire database will be read at once.
399 Implemented by Ulrich Drepper.
401 * The interfaces introduced in RFC 3542 have been implemented by
404 * Support for the new ELF hash table format was added by Ulrich Drepper.
406 * Support for priority inheritance mutexes added by Jakub Jelinek and
409 * Support for priority protected mutexes added by Jakub Jelinek.
411 * New locales: nr_ZA, pa_PK, ca_AD, ca_FR, ca_IT, el_CY, tr_CY, as_IN,
412 or_IN, csb_PL, fy_NL, sr_ME.
416 * More overflow detection functions.
418 * New iconv converters for IBM1025, IBM1122, IBM1137, IBM1153,
419 IBM1154, IBM1155, IBM1156, IBM1157, and IBM1158 contributed by Jiro Sekiba.
421 More converters for IBM803, IBM901, IBM902, IBM921, IBM1008, IBM1097,
422 IBM1112, IBM1123, IBM1130, IBM1140, IBM1141, IBM1142, IBM1143, IBM1144,
423 IBM1145, IBM1146, IBM1147, IBM1148, IBM1149, IBM1166, IBM1167, IBM4517,
424 IBM4899, IBM4909, IBM4971, IBM5347, IBM9030, IBM9066, IBM9448, IBM12712,
425 IBM16804, IBM1364, IBM1371, IBM1388, IBM1390, and IBM1399 contributed
426 by Masahide Washizawa.
428 * It is now possible to install audit libraries for the dynamic linker using
429 LD_AUDIT. Implemented by Ulrich Drepper.
431 * The LinuxThreads add-on, providing pthreads on Linux 2.4 kernels, is no
432 longer supported. The new NPTL implementation requires Linux 2.6 kernels.
433 For a libc and libpthread that works well on Linux 2.4 kernels, we
434 recommend using the stable 2.3 branch.
436 * The new function open_wmemstream acts like open_memstream,
437 but uses a wchar_t wide character buffer.
439 * The new function ppoll is an improved version of poll, similar to pselect.
441 * New interfaces: fdopendir, openat, fstatat, fchmodat, fchownat,
442 futimesat, faccessat, mkdirat, mkfifoat, mknodat,
443 renameat, unlinkat, linkat, symlinkat, readlinkat.
445 * New Linux kernel system calls: unshare,
446 inotify_init, inotify_add_watch, inotify_rm_watch.
448 * The euidaccess function is now also known by the alias eaccess,
449 for compatibility with some other systems.
451 * Timezone data updated to 2006b version.
455 * The following bugs are resolved with this release:
457 38, 253, 549, 622, 653, 721, 758, 851, 877, 915, 934, 955, 961,
458 1016, 1037, 1076, 1079, 1080, 1081, 1082, 1083, 1084, 1085, 1086,
459 1087, 1088, 1090, 1091, 1092, 1093, 1094, 1095, 1096, 1097, 1098,
460 1099, 1100, 1101, 1102, 1103, 1104, 1105, 1106, 1107, 1108, 1109,
461 1110, 1111, 1112, 1113, 1125, 1137, 1138, 1249, 1250, 1251, 1252,
462 1253, 1254, 1350, 1358, 1394, 1438, 1498, 1534
464 Visit <http://sources.redhat.com/bugzilla/> for the details of each bug.
466 * As of this release, GCC 4 can be used to compile the C Library.
468 * Timezone data updated to 2005m version.
472 * The following bugs are resolved with this release:
474 284, 592, 602, 626, 633, 640, 650, 661, 671, 681, 693, 700, 710, 719,
475 722, 723, 725, 726, 727, 728, 729, 730, 731, 732, 733, 734, 735, 736,
476 737, 738, 739, 740, 741, 742, 743, 744, 745, 765, 767, 768, 769, 776,
477 777, 787, 821, 822, 823, 825
479 Visit <http://sources.redhat.com/bugzilla/> for the details of each bug.
483 * Support for RFC 3678. Real implementations exist only for Linux so far.
484 Implemented by Ulrich Drepper.
486 * nscd can now cache entries persistently. Expiring entries are reloaded.
487 For speedups the cache can be shared in memory with client processes.
488 Implemented by Ulrich Drepper.
490 * nscd can now perform SELinux checks.
491 Implemented by Matthew Rickard <mjricka@epoch.ncsc.mil>.
493 * getaddrinfo queries are now cached. Canonical name lookup is performed
495 Implemented by Ulrich Drepper.
497 * The nothrow function attribute is used when headers are used by gcc when
498 compiling C code. This can avoid significant amounts of exception
501 * The malloc functions perform more error checking and are stricter when
502 it comes to reacting on errors. The default action is to terminate
503 the process after showing an error message. Implemented by Ulrich Drepper.
505 * Reverse lookups of IPv6 addresses does not use bit string or .ip6.int
506 lookups anymore unless explicitly requested. Implemented by Ulrich Drepper.
508 * Namespaces in ld.so are implemented. DSOs can be loaded in separate
509 namespaces using the new function dlmopen(). This feature is of course,
510 like most other dynamic loading functionality, not available in statically
511 linked applications. Implemented by Ulrich Drepper.
513 * Low-overhead boundary checking variants of string and some stdio functions
514 were added. These are to be used in conjunction with a gcc patch by
515 Jakub Jelinek which adds calls to these functions if possible.
516 Implemented by Jakub Jelinek and Ulrich Drepper.
518 * Old code for several operating systems and machine architectures that
519 have not been in working condition in a long time have been removed from
520 the main source tree maintained by the GNU C Library's maintainers.
521 These files are now reside in the separate `ports' source module
522 that is usable as an add-on when building the library.
526 * New functions `dladdr1' and `dlinfo' in <dlfcn.h> provide more ways to
527 interrogate the dynamic linker, compatible with the Solaris interface.
529 * ELF thread-local storage support (TLS) now works on PowerPC and PowerPC64;
530 implemented by Paul Mackerras, Steven Munroe, and Roland McGrath.
532 * getifaddrs now uses the netlink interface on Linux to get its information.
533 Implemented by Thorsten Kukuk.
535 * getaddrinfo now implements AI_V4MAPPED, AI_ALL, and AI_ADDRCONF.
536 Implemented by Ulrich Drepper.
538 * support for non-executable stacks on x86 has been added. Changes mostly
541 * regex is now much faster for multibyte locales. Changes by Jakub Jelinek
544 * getaddrinfo now performs destination address selection according to
549 * Thread-safe interfaces for many functions that access locale data
550 were added in version 2.3, but these features were omitted from NEWS.
551 Many functions have variants with an `_l' suffix that take a `locale_t'
552 object as a parameter rather than consulting the current locale.
553 The new functions `newlocale', `duplocale', and `freelocale' in <locale.h>
554 create and maintain `locale_t' objects. Additionally, the new function
555 `uselocale' sets "the current locale" (as used by functions not so
556 parameterized) set for an individual thread. These features were added
557 in version 2.3, implemented by Ulrich Drepper and Roland McGrath.
559 * The functions getresuid, getresgid, setresuid, and setresgid, which
560 have long been available on Linux, are now declared in <unistd.h>
561 and are now also available on the Hurd.
563 * ELF thread-local storage support (TLS) now works on x86-64.
565 * The new dynamic string token $LIB is expanded in shared library names.
566 This normally expands to lib, but on some 64-bit platforms to lib64 instead.
568 * Aldy Hernandez contributed complete software floating point support for
569 PowerPC machines with no FPU.
571 * fexecve is implemented on Linux.
573 * The `btowc' function should work at least twice as fast due to
574 specialized callbacks in the iconv modules. Implemented by Bruno Haible.
576 * With approriate thread add-ons cancelable functions are now implemented
577 in libc.so as well. No need to call the function in libpthread. This
578 change allowed to finally disable the incorrect and expensive handling
579 of weak definition in ld.so.
581 * Yet more PLT entries in libc.so have been removed. We finally arrived
582 at the bare minimum. Startup times improved appropriately.
584 * Support for the new Linux/x86 system call interface was added. The
585 AT_SYSINFO auxiliary vector entry is recognized and handled.
589 * Masahide Washizawa contributed iconv modules for IBM1163 and IBM1164
592 * iconv (the program and the interface) now accepts empty names (excluding
593 options like //TRANSLIT) to mean "use charset of current locale".
595 * localedef can now transliterate characters in strings which are not in
596 the provided charmap. The information from the input locale is used.
598 * Prelinking support was added for ELF targets. This requires additional
599 tools and recent versions of the GNU binutils. Contributed by Jakub Jelinek.
601 * Read-only stdio streams now use mmap to speed up operation by eliminating
602 copying and buffer underflows. To use add 'm' to the mode string of
603 the fopen/fdopen/freopen call. Implemented by Ulrich Drepper.
605 * The malloc functions were completely rewritten by Wolfram Gloger based
606 on Doug Lea's malloc-2.7.0.c.
608 * Isamu Hasegawa contributed a completely new and POSIX-conformant
609 implementation of regex.
611 * Bruno Haible upgraded the iconv and locale implementation to support
614 * Contents of the LC_* and LANG environment variables in the CEN style are
615 not recognized anymore. It never was used. Change by Ulrich Drepper.
617 * The runtime (ld.so, libc, libpthread for Linux) now can handle the ELF
618 thread-local storage (TLS) ABI on some platforms.
619 Changes by Ulrich Drepper. SH support by Kaz Kojima.
621 * Bruno Haible contributed iconv converters for ISO-2022-JP-3, SHIFT JIS-X0213,
622 EUC-JISX0213, and TSCII.
624 * New header <ifaddrs.h> with functions `getifaddrs' and `freeifaddrs':
625 BSD-compatible interface for getting all network interface addresses.
626 Implementation for IPv4 by Roland McGrath.
628 * Loading of locale data is faster due to the introduction of a locale
629 archive. Implemented by Roland McGrath and Ulrich Drepper.
631 * Startup times are significantly reduced by not using exported functions
632 inside the library itself. Changes by Jakub Jelinek, Roland McGrath,
635 * Steven Munroe contributed a port to PowerPC64/Linux.
639 * The Hurd now uses the GNU libio implementation of stdio rather than the
640 old GNU stdio implementation, and uses a new ABI (libc.so.0.3).
642 * The Hurd on x86 now has the `ioperm' function and <sys/io.h> header file
643 with the same behavior as the Linux system call of the same name.
647 * Stephen Moshier implemented log2, log10, powl and cbrtl for the
648 128-bit long double format.
650 * Masahide Washizawa contributed iconv modules for IBM1132, IBM1133, IBM1160,
651 IBM1161, and IBM1162 charsets.
653 * Andreas Jaeger contributed a port to x86-64/Linux.
655 * Peter Bruin contributed a port to PowerPC/Hurd.
657 * libc functions using I/O streams now can handle wide-oriented streams
660 * optimizations in the dynamic linker. Binaries created by recent binutils
661 versions start up quicker due to reduced time spent on relocations.
663 * Support for use of gcc3 added by Jakub Jelinek and HJ Lu.
667 * Stephen Moshier implemented cosh, expm1, log1p, acos, sinh, tanh,
668 asinh, atanh, j0 for the 128-bit long double format.
670 * Bruno Haible updated all the code handling Unicode in some form to
673 * Speed of regex for single-byte locales is back to previous levels.
674 Patch by Isamu Hasegawa.
676 * Alpha, SPARC, and IA-64 now also using floating stacks.
678 * Startup time of internationalized applications greatly improved through
679 iconv cache. Use iconvconfig to generate the cache file.
680 Contributed by Ulrich Drepper.
682 * The IA-64 specific part of ld.so was rewritten to eliminate some pretty
683 severe performance problems. Patch by David Mosberger.
685 * The Hurd port got a lot more functionality like AIO, various stdio
686 extensions, etc. Mainly done by Roland McGrath.
688 * mtrace can now lookup symbols in shared libraries.
692 * Intel's IA-64 math library is largely integrated. It provides fast and
693 accurate implementatations for most basic and standard math functions
694 in float, double, and long double format.
696 * Stephen Moshier implemented j0, j1, jn, y0, y1, yn, lgamma, erf, erfc,
697 and asin for the 96-bit long double format and asin, log, tan for the
698 128-bit long double format.
700 * The beginning of a last-bit accurate math library by IBM Haifa were added.
701 The basic double functions exist today. Contributed by Abraham Ziv
702 <ziv@il.ibm.com>, Moshe Olshansky <olshansk@il.ibm.com>, Ealan Henis
703 <ealan@il.ibm.com>, and Anna Reitman <reitman@il.ibm.com>.
705 * An asynchronous name lookup library was added. The interface is designed
706 after POSIX AIO. The proposal was circulated beforehand to get comments.
707 No negative ones came in. Implemented by Ulrich Drepper.
709 * Port to S390/64bit contributed by Martin Schwidefsky
710 <schwidefsky@de.ibm.com>.
712 * David Mosberger <davidm@hpl.hp.com> implemented the setcontext family
713 of functions for Linux/IA-64.
715 * The RPC code is now thread safe. Threads can now use the same service
716 of different services at the same time. Patch by Eric Norum
717 <eric.norum@usask.ca> with some help by Ulrich Drepper.
719 * Martin Schwidefsky <schwidefsky@de.ibm.com> implemented the setcontext
720 family of functions for Linux/S390.
722 * Ulrich Drepper <drepper@redhat.com> implemented the setcontext family
723 of functions for Linux/x86.
725 * Port to Linux/CRIS contributed by Axis Communications.
729 * Lots of headers were cleaned up. Using the tool in the conform/ subdir
730 we can now check for namespace violations and missing declarations. The
731 result is that almost all headers are now Unix-compliant (as defined in
732 the upcoming XPG6). The negative side is that some programs might need
733 corrections, too, if they depend on the incorrect form of the headers in
734 previous versions which defined too many symbols and included too many
737 * regex now handles multibyte character sets correctly.
738 Contributed by Isamu Hasegawa <isamu@yamato.ibm.com>.
740 * iconv (the program) does now conform to the upcoming XPG6 and handles
741 charmaps. Instead of the charset names the path of charmaps can be
742 provided and the conversion happens based on this data.
743 Contributed by Ulrich Drepper.
745 * The locale program now provides detailed information about the installed
750 only lists the names of the supported locales
754 provides details such as country, language, and codeset name.
755 Contributed by Ulrich Drepper.
759 * The gencat program now parses the input file according to the charset
760 selected by the LC_CTYPE category. This is important for stateful
761 character sets. To make generating catalogs easier there is a way
762 to overwrite the charset selected by the locale: before the first
763 message or $ quote line the catalog can contain a line like
767 to select the charset (ISO-8859-2 in this case).
769 Implemented by Shinya Hanataka and Ulrich Drepper.
771 * New codeset conversion modules: IBM-922 (Estonia PC codeset),
772 IBM-1124 (Ukraine PC codeset), IBM-1129 (Vietnamese PC codeset).
773 Contributed by Masahide Washizawa <washi@jp.ibm.com>.
775 * Optimized string functions for Alpha ev6 and ev67 by Richard Henderson
776 <rth@redhat.com> and Rick Gorton <rick.gorton@alpha-processor.com>.
778 * The LANGUAGE environment variable is now ignored unless the locale is
779 changed from the default "C" locale.
781 * The usual bug fixes.
785 * Greg McGary added runtime support for bounds checking using gcc's
786 new -fbounded-pointers option. ix86 target is complete. PowerPC
789 * Thorsten Kukuk added secure mode support to nscd.
791 * The Berkeley db libraries have been removed.
793 Related, the nss_db module is now in a separate package since it
794 obviously requires a database library being available.
796 * Wide character I/O streams implemented by Ulrich Drepper.
798 * Functions from the extended socket API added by Ulrich Drepper.
800 * Functions feenableexcept and fedisableexcept to control the
801 behaviour of individual exceptions have been added by Andreas Jaeger.
803 * ldconfig program added by Andreas Jaeger and Jakub Jelinek.
805 * The resolver code has been updated from bind 8.2.3-T5B which supports
806 threads. The integration was done by Andreas Jaeger, Adam D. Bradley,
809 This change could in some situations effect backward compatibility. Since
810 now `_res' is a thread-local instead of a global variable, modifying it
811 in one thread does not have any effect in other threads.
813 The resolver library was also extended to allow IPv6 as the transport
814 protocol for the requests. This work was done by Stig Venaas.
816 * Compatibility code for K&R C compilers has been removed from the
817 header files. A ISO C compiler is needed to use the library
818 (conforming to either C89 or C99 standard).
820 * Complete rewrite of the localedef program to support multibyte character
821 sets. Implement handling of ISO 14651 and ISO 14652. Rewrite strcoll,
822 strxfrm, wcscoll, and wcsxfrm functions. Make isw*() functions work.
823 Implemented by Ulrich Drepper.
825 Bruno Haible significantly improved the generation and use of the data
826 structures for the wide character tables.
828 * Plural handling in gettext implemented by Ulrich Drepper.
830 * The utmp daemon has been removed.
832 * The port to MIPS-Linux has been finished by Andreas Jaeger.
834 * A port to Hitachi SH3 and SH4 has been contributed by Kazumoto Kojima
837 * POSIX clocks and timers implemented by Kaz Kylheku and Ulrich Drepper.
839 * POSIX barriers implemented by Kaz Kylheku.
841 * POSIX spawn function family implemented by Ulrich Drepper.
843 * POSIX spinlocks are now available.
845 * Timed wait functions for mutex, rwlock, and semaphores are implemented.
847 * the configure option --enable-kernel=X.Y.Z allows to strip out
848 compatibility for kernel versions before X.Y.Z. This is currently only
849 implemented for Linux.
851 * the sockaddr_in6 structure changed. The IPv6 working group added a new
852 field sin6_scope_id. This means that all programs using IPv6 should be
853 recompiled. Don't expect binary compatibility with previous glibc
856 * various conversion modules for IBM character sets contributed by
859 * IA-64 port by Jes Sorensen and HJ Lu.
861 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
862 Compiling the GNU C Library for Linux/ia64
863 ******************************************
865 Please refer to the file INSTALL in the same directory as you found
866 this file for general information about configuring and compiling
869 For general inquiries about glibc under Linux/ia64 please use the
870 following mailing list linux-ia64@linuxia64.org or one of the relevant
873 Recommended Tools for Compilation
874 =================================
876 In order for glibc-2.2 to build correctly on the ia64 you need at
877 least the following versions of the GNU tools (the :
879 * The Cygnus toolchain snapshot for the ia64 as of August 4
880 including the provided set of patches. It is however recommend
881 you use the October 24 toolchain snapshot or a more recent version.
883 OR alternatively you can try the following (the Cygnus toolchain is
884 the recommended solution):
886 * GCC and binutils, GAS and GNU LD out of CVS from
887 sources.redhat.com as of August 28, 2000 or later. The CVS tree
888 may require special patches to work properly on the ia64.
890 Configuring and compiling GNU Libc for Linux/ia64
891 =================================================
893 The library requires Linux kernel version 2.4.0-test4-000728 or
894 later to funtion properly. Besides that it support for debug libraries
895 is currently untested. Hence the following options
896 are required for configuring the library:
898 --disable-debug --enable-kernel=2.4.0
900 It is also important that you make sure the library picks up the
901 appropriate kernel header files, if you do not have recent enough
902 kernel headers in /usr/src/linux/include, you should use the
903 --with-headers=<path> option to specify the location.
905 As an example I personally use the following options to configure
910 --enable-kernel=2.4.0
914 --with-headers=/home/jes/linux/include
919 Jes Sorensen <jes@linuxcare.com>,
921 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
935 * New ISO C 9x function _Exit, imaxabs, and imaxdiv are added.
937 * New xdr functions are added; some rpc functions are now 64bit clean.
939 * Fixed a number of bugs and memory leaks (especially in NIS+ code).
941 * Fixed known incompatibilities with glibc 2.0.
943 * New functions lock64, strchrnul, rawmemchr, getutmp and getutmpx.
945 * Optimized a number of functions (especially the ELF dynamic loader).
947 * Update timezone data files.
949 * lots of charmaps corrections
951 * some new locale definitions and charmaps
956 * Richard Henderson corrected size of struct timeval on Linux/Alpha to
957 conform to POSIX member type requirements. Symbol versions have been
958 adjusted as needed within the library, and for direct use by applications,
959 but there is potential for problems if third-party libraries use
960 struct timeval as part of their interface. This does not present
961 a problem for X and other "essential" system libraries.
963 * An additional locale model to support C++ Standard Library locale
964 model and probably more was implemented by Ulrich Drepper.
966 * Eric Youngdale and Ulrich Drepper implemented versioning of objects on
969 * Miles Bader provided the `argp' function family to support hierachical
970 command line argument parsing, layered on top of getopt.
972 * strtod accepts new hexadecimal floating-point format from ISO C 9X.
974 * printf has two new specifiers %a and %A to print hexadecimal flaoting-point
977 * scanf recognizes the %a and %A format for scanning floating point numbers.
979 * the new headers <stdint.h> and <inttypes.h> from ISO C 9X provides
980 information and interfaces for the available integer types.
982 * about 130 new math functions were added to implement the ISO C9x math
985 * the new header <complex.h> contains definitions of the complex math
986 functions from ISO C 9X.
988 * the new header <tgmath.h> defines generic macros to use complex or
989 real valued functions.
991 * Thorsten Kukuk provided an implementation for NIS+, securelevel 0, 1 and 2.
993 * Andreas Jaeger provided a test suite for the math library.
995 * Mark Kettenis implemented the utmpx interface and an utmp daemon.
997 * Ulrich Drepper added character set conversion functions (iconv).
999 * Optimized string functions have been added.
1001 * The localedata addon is now part of glibc.
1003 * An implementation of profiling shared libraries was added by Ulrich Drepper.
1005 * Thorsten Kukuk and Ulrich Drepper provided an implementation for a caching
1006 daemon for NSS (nscd).
1008 Missing a better place here are some numbers on improvements. Under
1009 Linux 2.1.125 un-tar-ing the kernel sources takes
1013 using local files 12.19s 6.88s 22.91s
1015 using NIS 13.92s 8.91s 26.34s
1017 using NIS & nscd 10.37s 7.34s 25.30s
1019 using NIS+ 27.57s 30.37s 640.46s
1021 using NIS+ & nscd 10.25s 7.83s 26.51s
1023 using NIS & old nscd [1] 13.83s 8.32s 29.60s
1025 Keep in mind that non-namelookup related operations dominate above times.
1026 It was just a common complain that using NIS+ unpacking the kernel is
1029 [1] The old nscd implementation is not available anymore since it was
1030 distributed with glibc up to version 2.0.98 and thus is now replaced.
1032 * Tim Waugh provided an implementation of the POSIX.2 wordexp function family.
1034 * Mark Kettenis provided a Hesiod NSS module.
1036 * The ELF dynamic loader knows how to process dynamic string tokens ($ORIGIN
1037 and $PLATFORM) in RPATHs and similar strings (Ulrich Drepper).
1039 * rcmd can now handle netgroups (Dick Streefland).
1041 * A port to the ARM was contributed by Phil Blundell, Pat Beirne and Scott
1044 * Support for the IPv6 protocol has been added to the socket API, as per the
1045 latest draft standards.
1047 * Support for Linux 2.2 has been added.
1049 * Interface changes relative to the latest 2.0.x release:
1050 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1051 addseverity NEW: Unix98
1052 alphasort64 NEW: LFS
1053 argp_err_exit_status NEW: argp, GNU ext
1054 argp_error NEW: argp, GNU ext
1055 argp_failure NEW: argp, GNU ext
1056 argp_help NEW: argp, GNU ext
1057 argp_parse NEW: argp, GNU ext
1058 argp_program_bug_address NEW: argp, GNU ext
1059 argp_program_version NEW: argp, GNU ext
1060 argp_program_version_hook NEW: argp, GNU ext
1061 argp_state_help NEW: argp, GNU ext
1062 argp_usage NEW: argp, GNU ext
1063 authdes_create NEW: Secure RPC
1064 authdes_getucred NEW: Secure RPC
1065 authdes_pk_create NEW: Secure RPC
1066 backtrace NEW: GNU ext.
1067 backtrace_symbols NEW: GNU ext.
1068 backtrace_symbols_fd NEW: GNU ext.
1070 cacosf NEW: ISO C 9x
1071 cacosh NEW: ISO C 9x
1072 cacoshf NEW: ISO C 9x
1073 cacoshl NEW: ISO C 9x
1074 cacosl NEW: ISO C 9x
1081 casinf NEW: ISO C 9x
1082 casinh NEW: ISO C 9x
1083 casinhf NEW: ISO C 9x
1084 casinhl NEW: ISO C 9x
1085 casinl NEW: ISO C 9x
1087 catanf NEW: ISO C 9x
1088 catanh NEW: ISO C 9x
1089 catanhf NEW: ISO C 9x
1090 catanhl NEW: ISO C 9x
1091 catanl NEW: ISO C 9x
1092 cbc_crypt NEW: Secure RPC
1096 ccoshf NEW: ISO C 9x
1097 ccoshl NEW: ISO C 9x
1103 cimagf NEW: ISO C 9x
1104 cimagl NEW: ISO C 9x
1105 clearerr_locked REMOVED
1106 clntunix_create NEW: sunrpc ext
1108 clog10 NEW: ISO C 9x
1109 clog10f NEW: ISO C 9x
1110 clog10l NEW: ISO C 9x
1120 cprojf NEW: ISO C 9x
1121 cprojl NEW: ISO C 9x
1123 crealf NEW: ISO C 9x
1124 creall NEW: ISO C 9x
1129 csinhf NEW: ISO C 9x
1130 csinhl NEW: ISO C 9x
1133 csqrtf NEW: ISO C 9x
1134 csqrtl NEW: ISO C 9x
1138 ctanhf NEW: ISO C 9x
1139 ctanhl NEW: ISO C 9x
1141 des_setparity NEW: Secure RPC
1142 ecb_crypt NEW: Secure RPC
1143 endutxent NEW: Unix98
1145 exp10f NEW: ISO C 9x
1146 exp10l NEW: ISO C 9x
1150 fattach NEW: STREAMS
1151 fdetach NEW: STREAMS
1155 feclearexcept NEW: ISO C 9x
1156 fegetenv NEW: ISO C 9x
1157 fegetexceptflag NEW: ISO C 9x
1158 fegetround NEW: ISO C 9x
1159 feholdexcept NEW: ISO C 9x
1161 feraiseexcept NEW: ISO C 9x
1162 ferror_locked REMOVED
1163 fesetenv NEW: ISO C 9x
1164 fesetexceptflag NEW: ISO C 9x
1165 fesetround NEW: ISO C 9x
1166 fetestexcept NEW: ISO C 9x
1167 feupdateenv NEW: ISO C 9x
1168 fflush_locked REMOVED
1172 fgets_unlocked NEW: GNU ext.
1173 fileno_locked REMOVED
1185 fputc_locked REMOVED
1186 fputs_unlocked NEW: GNU ext.
1187 fread_unlocked NEW: GNU ext.
1192 fstatvfs NEW: Unix98
1196 ftruncate64 NEW: LFS
1198 fwrite_unlocked NEW: GNU ext.
1199 gai_strerror NEW: IPv6
1203 getchar_locked REMOVED
1205 getdate_err NEW: Unix98
1206 getdate_r NEW: GNU ext.
1208 getnameinfo NEW: IPv6
1209 getnetname NEW: Secure RPC
1210 getpmsg NEW: STREAMS
1211 getpt NEW: Unix98 PTY
1212 getrlimit64 NEW: LFS
1213 getutxent NEW: Unix98
1214 getutxid NEW: Unix98
1215 getutxline NEW: Unix98
1216 glob64 NEW: GNU ext.
1217 globfree64 NEW: GNU ext.
1218 gnu_get_libc_release NEW: GNU ext.
1219 gnu_get_libc_version NEW: GNU ext.
1220 grantpt NEW: Unix98 PTY
1221 host2netname NEW: Secure RPC
1223 iconv_close NEW: iconv
1224 iconv_open NEW: iconv
1225 if_freenameindex NEW: IPv6
1226 if_indextoname NEW: IPv6
1227 if_nameindex NEW: IPv6
1228 if_nametoindex NEW: IPv6
1229 in6addr_any NEW: IPv6
1230 in6addr_loopback NEW: IPv6
1231 inet6_isipv4mapped NEW: IPv6
1232 isastream NEW: STREAMS
1233 iswblank NEW: GNU ext.
1234 key_decryptsession NEW: Secure RPC
1235 key_decryptsession_pk NEW: Secure RPC
1236 key_encryptsession NEW: Secure RPC
1237 key_encryptsession_pk NEW: Secure RPC
1238 key_gendes NEW: Secure RPC
1239 key_get_conv NEW: Secure RPC
1240 key_secretkey_is_set NEW: Secure RPC
1241 key_setnet NEW: Secure RPC
1242 key_setsecret NEW: Secure RPC
1243 llrint NEW: ISO C 9x
1244 llrintf NEW: ISO C 9x
1245 llrintl NEW: ISO C 9x
1246 llround NEW: ISO C 9x
1247 llroundf NEW: ISO C 9x
1248 llroundl NEW: ISO C 9x
1253 lrintf NEW: ISO C 9x
1254 lrintl NEW: ISO C 9x
1255 lround NEW: ISO C 9x
1256 lroundf NEW: ISO C 9x
1257 lroundl NEW: ISO C 9x
1259 makecontext NEW: Unix98
1260 mempcpy NEW: GNU ext.
1263 modify_ldt NEW: kernel
1267 nearbyint NEW: ISO C 9x
1268 nearbyintf NEW: ISO C 9x
1269 nearbyintl NEW: ISO C 9x
1270 netname2host NEW: Secure RPC
1271 netname2user NEW: Secure RPC
1272 nexttoward NEW: ISO C 9x
1273 nexttowardf NEW: ISO C 9x
1274 nexttowardl NEW: ISO C 9x
1278 passwd2des NEW: Secure RPC
1280 pow10f NEW: GNU ext.
1281 pow10l NEW: GNU ext.
1284 printf_size NEW: GNU ext.
1285 printf_size_info NEW: GNU ext.
1286 profil_counter REMOVED
1287 pthread_mutexattr_getkind_np REPLACED
1288 pthread_mutexattr_setkind_np REPLACED
1289 ptsname NEW: Unix98 PTY
1290 ptsname_r NEW: Unix98 PTY
1292 putchar_locked REMOVED
1293 putgrent NEW: GNU ext.
1295 putpmsg NEW: STREAMS
1296 pututxline NEW: Unix98
1300 readdir64_r NEW: LFS
1301 remquo NEW: ISO C 9x
1302 remquof NEW: ISO C 9x
1303 remquol NEW: ISO C 9x
1305 roundf NEW: ISO C 9x
1306 roundl NEW: ISO C 9x
1308 scalbln NEW: ISO C 9x
1309 scalblnf NEW: ISO C 9x
1310 scalblnl NEW: ISO C 9x
1312 sendfile NEW: kernel
1313 setcontext NEW: Unix98
1314 setrlimit64 NEW: LFS
1315 setutxent NEW: Unix98
1317 sigignore NEW: Unix98
1318 sigqueue NEW: POSIX.1b
1319 sigrelse NEW: Unix98
1320 sigset NEW: POSIX.1b
1321 sigtimedwait NEW: POSIX.1b
1322 sigwaitinfo NEW: POSIX.1b
1323 sincos NEW: GNU ext.
1324 sincosf NEW: GNU ext.
1325 sincosl NEW: GNU ext.
1329 strcasestr NEW: GNU ext.
1330 strtoimax NEW: ISO C 9x
1331 strtoumax NEW: ISO C 9x
1332 strverscmp NEW: GNU ext.
1333 svcauthdes_stats NEW: Secure RPC
1334 svcunix_create NEW: sunrpc etx
1335 svcunixfd_create NEW: sunrpc ext
1336 swapcontext NEW: Unix98
1337 tcgetsid NEW: Unix98 PTY
1338 tdestroy NEW: GNU ext.
1339 tgamma NEW: ISO C 9x
1340 tgammaf NEW: ISO C 9x
1341 tgammal NEW: ISO C 9x
1345 truncf NEW: ISO C 9x
1346 truncl NEW: ISO C 9x
1348 unlockpt NEW: Unix98 PTY
1349 updwtmpx NEW: Unix98
1350 user2netname NEW: Secure RPC
1351 utmpxname NEW: Unix98
1352 versionsort NEW: GNU ext.
1353 versionsort64 NEW: GNU ext.
1355 wcscasecmp NEW: GNU ext.
1356 wcsncasecmp NEW: GNU ext.
1357 wcsnlen NEW: GNU ext.
1358 wcstoimax NEW: ISO C 9x
1359 wcstoll NEW: ISO C 9x
1360 wcstoull NEW: ISO C 9x
1361 wcstoumax NEW: ISO C 9x
1363 wordexp NEW: POSIX.2
1364 wordfree NEW: POSIX.2
1365 write_profiling REMOVED
1366 xdecrypt NEW: Secure RPC
1367 xdr_authdes_cred NEW: Secure RPC
1368 xdr_authdes_verf NEW: Secure RPC
1369 xdr_cryptkeyarg NEW: Secure RPC
1370 xdr_cryptkeyarg2 NEW: Secure RPC
1371 xdr_cryptkeyres NEW: Secure RPC
1372 xdr_getcredres NEW: Secure RPC
1373 xdr_key_netstarg NEW: Secure RPC
1374 xdr_key_netstres NEW: Secure RPC
1375 xdr_keybuf NEW: Secure RPC
1376 xdr_keystatus NEW: Secure RPC
1377 xdr_netnamestr NEW: Secure RPC
1378 xdr_sizeof NEW: Secure RPC
1379 xdr_unixcred NEW: sunrpc ext
1380 xencrypt NEW: Secure RPC
1381 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1392 * inet_ntoa is thread-safe
1394 * updwtmp is moved from libutil to libc
1396 * rewrite of cbrt function
1398 * update of timezone data
1412 * add atoll function
1414 * fix complex problems in Berkeley DB code
1416 * fix math functions
1420 * fixed lots of header problems (especially Linux/GNU specific)
1422 * dynamic loader preserves all registers
1424 * Roland McGrath provided support for handling of auxiliary objects in
1425 the ELF dynamic loader.
1427 * support for parallel builds is improved
1431 * GNU extensions are no longer declared by default. To enable them you
1432 must define the macro `_GNU_SOURCE' in your program or compile with
1435 * The library has changed from using GNU ld symbol aliases to using weak
1436 symbols where available. The ELF object file format supports weak
1437 symbols; GNU ld also supports weak symbols in the a.out format. (There
1438 is also now support for other GNU ld extensions in ELF. Use the
1439 `--with-elf' option to configure to indicate you have ELF, and
1440 `--with-gnu-ld' if using GNU ld.) This change resulted in the deletion
1441 of many files which contained only symbol aliases, reducing the size of
1442 the source and the compiled library; many other files were renamed to
1443 less cryptic names previously occupied by the symbol alias files.
1444 There is a new header file <elf.h> for programs which operate on
1445 files in the ELF format.
1447 * Converted to Autoconf version 2, so `configure' has more options.
1448 Run `configure --help' to see the details.
1450 * The library can now be configured to build profiling, highly-optimized
1451 (but undebuggable), and/or shared libraries (ELF with GNU ld only). The
1452 `--enable-profile', `--enable-omitfp', and `--enable-shared' options to
1453 `configure' enable building these extra libraries. The shared library is
1454 built by default when using both ELF and GNU ld. When shared libraries
1455 are enabled, the new library `-ldl' is available for arbitrary run-time
1456 loading of shared objects; its interface is defined in <dlfcn.h>. The
1457 new header file <link.h> gives access to the internals of the run-time
1458 dynamic linker, `ld.so'. The shell script `ldd' is similar to the
1459 application of same name on other systems and it provides information
1460 about dynamically linked binaries.
1462 * The C library now provides the run-time support code for profiling
1463 executables compiled with `-pg'. Programs can control the profiling code
1464 through the interface in <sys/gmon.h>. The `gmon.out' files written by
1465 the GNU C library can be read only by GNU `gprof' (from GNU binutils);
1466 the support for this file format was contributed by David Mosberger-Tang.
1468 * The math code has been replaced with a math library based on fdlibm from
1469 Sun, and modified by JT Conklin and Ulrich Drepper with i387 support, by
1470 Ian Taylor with `float' functions and by Ulrich Drepper with `long double'
1471 functions. The math functions now reside in a separate library, so
1472 programs using them will need to use `-lm' their linking commands.
1474 * John C. Bowman contributed optimized ix87 assembler inline functions.
1476 * Ulrich Drepper has contributed support for an `/etc/nsswitch.conf'
1477 mechanism similar to that found in Solaris 2. This is now used for the
1478 group, passwd, hosts, networks, services, protocols, rpc, ethers,
1479 shadow, netgroup, publickey, and alias databases. The `nsswitch.conf'
1480 file controls what services are used for each individual database. This
1481 works by loading shared libraries with names specified in `nsswitch.conf',
1482 so service modules can be changed or added at any time without even
1483 relinking any program. Currently there are the file, db, and NIS based
1484 NSS services available.
1486 * The new functions `strtoq' and `strtouq' parse integer values from
1487 strings, like `strtol' and `strtoul', but they return `long long int' and
1488 `unsigned long long int' values, respectively (64-bit quantities).
1490 * The new functions `strtof' and `strtold' parse floating-point values from
1491 strings, like `strtod', but they return `float' and `long double' values,
1492 respectively (on some machines `double' and `long double' are the same).
1494 * Ulrich Drepper has contributed new implementations of the floating-point
1495 printing and reading code used in the `printf' family of functions and
1496 `strtod', `strtof', and `strtold'. These new functions are perfectly
1497 accurate, and much faster than the old ones.
1499 * The implementation of the POSIX locale model was completely rewritten by
1500 Ulrich Drepper. This includes the new programs `localedef' and `locale'
1501 to compile the POSIX locale definition.
1503 * The former dummy implementations of the strcoll and strxfrm function are
1504 now replaced by fully functional code contributed by Ulrich Drepper. The
1505 collation information comes from the POSIX locale definitions.
1507 * The new header <langinfo.h> defines an interface for accessing
1508 various locale-dependent data (using the locale chosen with `setlocale').
1510 * Ulrich Drepper has contributed a new suite of functions for operation on
1511 wide-character and multibyte-character strings, in <wchar.h>;
1512 and classification and case conversion of wide characters, in <wctype.h>.
1513 These new functions are conforming to the ISO C, Amendement 1 specification.
1515 * There is now a second implementation of the standard I/O library available.
1516 It comes from GNU libg++ as was written by Per Bothner, heavily modified
1517 by Hongjiu Lu and made thread safe by Ulrich Drepper.
1519 * You can now use positional parameter specifications in format strings
1520 for the `printf' and `scanf' families of functions. For example,
1521 `printf ("Number %2$d, Mr %1$s\n", "Jones", 6);'' prints
1522 ``Number 6, Mr Jones''. This is mainly useful when providing different
1523 format strings for different languages, whose grammars may dictate
1524 different orderings of the values being printed. To support this
1525 feature, the interface for `register_printf_handler' has changed; see
1526 the header file <printf.h> for details.
1528 * The `printf' and `scanf' families of functions now understand a new
1529 formatting flag for numeric conversions: the ' flag (e.g. %'d or %'f) says
1530 to group numbers as indicated by the locale; for `scanf' and friends, this
1531 says to accept as valid only a number with all the proper grouping
1532 separators in the right places. In the default "C" locale, numbers are
1533 not grouped; but locales for specific countries will define the usual
1534 conventions (i.e. separate thousands with `,' in the US locale).
1536 * The pgrp functions have been regularized, slightly incompatibly but much
1537 less confusingly. The core functions are now `getpgid' and `setpgid',
1538 which take arguments for the PID to operate on; the POSIX.1 `getpgrp' (no
1539 argument) and BSD `setpgrp' (identical to `setpgid') functions are
1540 provided for compatibility. There is no longer an incompatible `getpgrp'
1541 with an argument declared under _BSD_SOURCE; no BSD code uses it.
1543 * The new header file <fts.h> and suite of functions simplify programs that
1544 operate on directory trees. This code comes from 4.4 BSD.
1546 * The resolver code has been updated from the BIND 4.9.5-P1 release.
1547 Parts of the code were heavily modified by Ulrich Drepper to fit in the
1548 NSS scheme used in glibc.
1550 * There is a new malloc debugging hook `__memalign_hook'.
1552 * There are new typedefs `ushort' for `unsigned short int' and `uint' for
1553 `unsigned int' in <sys/types.h>. These are for compatibility only and
1554 their use is discouraged.
1556 * The `-lmcheck' library to enable standard malloc debugging hooks is now
1557 done differently, so that it works even without GNU ld.
1559 * New function `euidaccess' checks allowed access to a file like `access',
1560 but using the effective IDs instead of the real IDs.
1562 * The time zone data files have been updated for the latest and greatest
1563 local time conventions of the countries of the world.
1565 * The new function `dirfd' extracts the file descriptor used by a DIR stream;
1568 * The new functions `ecvt', `fcvt', and `gcvt' provide an obsolete interface
1569 for formatting floating-point numbers. They are provided only for
1570 compatibility; new programs should use `sprintf' instead. There are
1571 also equivalent function for the `long double' floating-point type and
1572 all functions also exist in a reentrant form.
1574 * The new auxiliary library `-lutil' from 4.4 BSD contains various
1575 functions for maintaining the login-record files (primarily of use to
1576 system programs such as `login'), and convenient functions for
1577 allocating and initializing a pseudo-terminal (pty) device.
1579 * Ulrich Drepper has contributed new support for System V style
1580 shared memory and IPC on systems that support it.
1582 * Ulrich Drepper has contributed several miscellaneous new functions found
1583 in System V: The `hsearch' family of functions provide an effective
1584 implementation of hash tables; `a64l' and `l64a' provide a very simple
1585 binary to ASCII mapping; `drand48' and friends provide a 48-bit random
1588 * Ulrich Drepper has contributed new reentrant counterparts for the
1589 `random' and `hsearch' families of functions; `random_r', `hsearch_r', etc.
1591 * Ulrich Drepper has contributed new, highly-optimized versions of several
1592 string functions for the i486/Pentium family of processors.
1594 * Ulrich Drepper has updated the Linux-specific code, based largely
1595 on work done in Hongjiu Lu's version of GNU libc for Linux.
1596 The GNU library now supports Linux versions 2.0.10 and later,
1597 using the ELF object file format (i[3456]86-*-linux).
1599 * Andreas Schwab has ported the C library to Linux/m68k (m68k-*-linux).
1601 * David Mosberger-Tang and Richard Henderson have ported the C library
1602 to Linux/Alpha (alpha-*-linux). Richard Henderson contributed the
1603 dynamic linking support for ELF/Alpha.
1605 * Richard Henderson contributed several Alpha optimized assembler function
1606 for arithmetic and string handling.
1608 * Ulrich Drepper has contributed a new set of message catalog functions to
1609 support multiple languages using the <libintl.h> interface, for use with
1610 his new package GNU gettext. Translation volunteers have contributed
1611 catalogs of the library's messages in Spanish, German, and Korean.
1613 * For compatibility with XPG4, Ulrich Drepper has contributed the `gencat'
1614 program and the `catgets' function for reading the catalog files it
1615 creates. (The <libintl.h> interface is preferred; we include the
1616 <nl_types.h> interface using `catgets' only for source compatibility with
1617 programs already written to use it.)
1619 * New header file <values.h> gives SVID-compatible names for <limits.h>
1622 * Various new macros, declarations, and small header files for compatibility
1625 * New function `group_member' is a convenient way to check if a process has
1626 a given effective group ID.
1628 * When using GCC 2.7 and later, the socket functions are now declared in a
1629 special way so that passing an argument of type `struct sockaddr_in *',
1630 `struct sockaddr_ns *', or `struct sockaddr_un *' instead of the generic
1631 `struct sockaddr *' type, does not generate a type-clash warning.
1633 * New function `error' declared in header file <error.h> is a convenient
1634 function for printing error messages and optionally exiting; this is the
1635 canonical function used in GNU programs. The new functions `err', `warn',
1636 and friends in header file <err.h> are the canonical 4.4 BSD interface for
1637 doing the same thing.
1639 * The <glob.h> interface has several new flags from 4.4 BSD that extend the
1640 POSIX.2 `glob' function to do ~ and {...} expansion.
1642 * New function `unsetenv' complements `setenv' for compatibility with 4.4 BSD.
1643 `clearenv' which is used in POSIX.9 is also available.
1645 * New function `getsid' returns session ID number on systems that support it.
1647 * We have incorporated the 4.4 BSD `db' library (version 1.85). New header
1648 files <db.h> and <mpool.h> provide a rich set of functions for several
1649 types of simple databases stored in memory and in files, and <ndbm.h> is
1650 an old `ndbm'-compatible interface using the `db' functions. Link with
1651 `-ldb' to get these functions.
1653 * New macro `strdupa' copies a string like `strdup', but uses local stack
1654 space from `alloca' instead of dynamic heap space from `malloc'.
1656 * New function `strnlen' is like `strlen' but searches only a given maximum
1657 number of characters for the null terminator. `stpncpy', `strndup' and
1658 `strndupa' are similar variants for the `stpcpy', `strdup' and `strdupa'
1661 * New function `statfs' in header <sys/statfs.h>.
1663 * The new <argz.h> and <envz.h> interfaces contributed by Miles Bader
1664 provide convenient functions for operating on blocks of null-terminated
1667 * A new suite of functions in <utmp.h> handle all the details of reading
1668 and writing the utmp file.
1670 * An implementation of the NIS/YP(tm) based NSS service was contributed by
1673 * Paul Eggert and Ulrich Drepper modified the `strftime' function to be
1674 completely POSIX compliant and also implemented the extended functionality
1675 to handle alternate digit representation and alternate era date formats.
1677 * Ulrich Drepper provided an implementation of the `strptime' function
1678 defined in XPG4.2 which transforms a string into a `struct tm' value.
1680 * Paul Eggert provided the tzselect shell script as part of the timezone
1681 code. The shell script makes it easy to select the correct timezone
1684 * The implementation of the malloc family of functions is completely replaced
1685 by a new implementation by Doug Lea with many improvements by Wolfram Gloger.
1686 The implementation uses the mmap function (if available) and it is
1687 optimized for the use in multi threaded programs.
1689 * Ulrich Drepper contributed a MD5 "encryption" for the crypt family of
1690 functions. This new functionality is usable by specifying a special
1691 salt string and it is compatible with implementation on *BSD systems.
1693 * Lots of functions from the XPG4.2 standard were added by Ulrich Drepper:
1694 `getsubopt' to handle second level command line options, `bsd_signal'
1695 to access BSD style `signal' functionality, the obsolete `regexp' style
1698 * the `lchown' function is available on system which support this
1701 * The implementation of the shadow password handling function was contributed
1704 * David Mosberger-Tang changed the SunRPC implementation to be 64bit safe.
1706 * POSIX.1g support was added. The <sys/select.h> header is available,
1707 `isfdtype' and `pselect' are implemented. Craig Metz contributed an
1708 implementation of `getaddrinfo'.
1712 * For cross-compilation you should now set `BUILD_CC' instead of `HOST_CC'.
1714 * New header file <fstab.h> and new functions `getfsspec', `getfsent' and
1715 friends, for parsing /etc/fstab. This code comes from 4.4 BSD.
1717 * The new function `daemon' from 4.4 BSD is useful for server programs that
1718 want to put themselves in the background.
1720 * Joel Sherrill has contributed support for several standalone boards that
1721 run without an operating system.
1723 * `printf', `scanf' and friends now accept a `q' type modifier for long
1724 long int as well as `ll'. Formats using these might be `%qu' or `%lld'.
1726 * All of the code taken from BSD (notably most of the math and networking
1727 routines) has been updated from the BSD 4.4-Lite release.
1729 * The resolver code has been updated from the BIND-4.9.3-BETA9 release.
1731 * The new functions `getdomainname' and `setdomainname' fetch or change the
1732 YP/NIS domain name. These are system calls which exist on systems which
1735 * The time zone data files have been updated for the latest international
1738 * The SunRPC programs `portmap' and `rpcinfo' are now installed in
1739 $(sbindir) (usually /usr/local/sbin) instead of $(bindir).
1743 * The C library now includes support for Sun RPC, from Sun's free
1744 RPCSRC-4.0 distribution. The `portmap', `rpcinfo', and `rpcgen' programs
1745 are included. (There is still no support for YP.)
1747 * Tom Quinn has contributed a port of the C library to SGI machines running
1748 Irix 4 (mips-sgi-irix4).
1750 * The new `lockf' function is a simplified interface to the locking
1751 facilities of `fcntl', included for compatibility.
1753 * New time functions `timegm', `timelocal', and `dysize' for compatibility.
1755 * New header file <sys/timeb.h> and new function `ftime' for compatibility.
1757 * New header files <poll.h> and <sys/poll.h> and new function `poll' for
1760 * The error message printed by `assert' for a failed assertion now includes
1761 the name of the program (if using GNU ld) and the name of the calling
1762 function (with versions of GCC that support this).
1764 * The `psignal' function is now declared in <signal.h>, not <stdio.h>.
1766 * The library now includes the <sys/mman.h> header file and memory
1767 management functions `mmap', `munmap', `mprotect', `msync', and
1768 `madvise', on systems that support those facilities.
1770 * The interface for `mcheck' has changed slightly: the function called to
1771 abort the program when an allocation inconsistency is detected now takes
1772 an argument that indicates the type of failure. The new function
1773 `mprobe' lets you request a consistency check for a particular block at
1774 any time (checks are normally done only when you call `free' or `realloc'
1777 * It is now possible to easily cross-compile the C library, building on one
1778 system a library to run on another machine and/or operating system. All
1779 you need to do is set the variable `HOST_CC' in `configparms' to the
1780 native compiler for programs to run on the machine you are building on (a
1781 few generator programs are used on Unix systems); set `CC' to the
1784 * The new function `fexecve' (only implemented on the GNU system) executes
1785 a program file given a file descriptor already open on the file.
1789 * Brendan Kehoe has contributed most of a port to the DEC Alpha
1790 running OSF/1 (alpha-dec-osf1). He says it is 75% complete.
1792 * You can set the variable `libprefix' in `configparms' to specify a prefix
1793 to be prepended to installed library files; this makes it easy to install
1794 the GNU C library to be linked as `-lgnuc' or whatever.
1796 * The new `stpncpy' is a cross between `stpcpy' and `strncpy': It
1797 copies a limited number of characters from a string, and returns the
1798 address of the last character written.
1800 * You no longer need to check for whether the installed `stddef.h' is
1801 compatible with the GNU C library. configure now checks for you.
1803 * You can now define a per-stream `fileno' function to convert the
1804 stream's cookie into an integral file descriptor.
1806 * ``malloc (0)'' no longer returns a null pointer. Instead, it
1807 allocates zero bytes of storage, and returns a unique pointer which
1808 you can pass to `realloc' or `free'. The behavior is undefined if
1809 you dereference this pointer.
1811 * The C library now runs on Sony NEWS m68k machines running either
1812 NewsOS 3 or NewsOS 4.
1814 * The new `syscall' function is a system-dependent primitive function
1815 for invoking system calls. It has the canonical behavior on Unix
1816 systems, including unreliable return values for some calls (such as
1817 `pipe', `fork' and `getppid').
1819 * The error code `EWOULDBLOCK' is now obsolete; it is always defined
1820 to `EAGAIN', which is the preferred name. On systems whose kernels
1821 use two distinct codes, the C library now translates EWOULDBLOCK to
1822 EAGAIN in every system call function.
1826 * The GNU C Library Reference Manual is now distributed with the library.
1827 `make dvi' will produce a DVI file of the printed manual.
1828 `make info' will produce Info files that you can read on line using C-h i
1829 in Emacs or the `info' program.
1830 Please send comments on the manual to bug-glibc-manual@gnu.org.
1832 * The library now supports SVR4 on i386s (i386-unknown-sysv4).
1834 * Brendan Kehoe has contributed a port to Sun SPARCs running Solaris 2.
1836 * Jason Merrill has contributed a port to the Sequent Symmetry running
1837 Dynix version 3 (i386-sequent-dynix).
1839 * The library has been ported to i386s running SCO 3.2.4 (also known as SCO
1840 ODT 2.0; i386-unknown-sco3.2.4) or SCO 3.2 (i386-unknown-sco3.2).
1842 * New function `memory_warnings' lets you arrange to get warnings when
1843 malloc is running out of memory to allocate, like Emacs gives you.
1845 * The C library now contains the relocating allocator used in Emacs 19 for
1846 its editing buffers. This allocator (ralloc) minimizes allocation
1847 overhead and fragmentation by moving allocated regions around whenever it
1848 needs to. You always refer to a ralloc'd region with a "handle" (a
1849 pointer to a pointer--an object of type `void **').
1851 * There is a new `printf' format: `%m' gives you the string corresponding
1852 to the error code in `errno'.
1854 * In `scanf' formats, you can now use `%as' or `%a[' to do the normal `%s'
1855 or `%[' conversion, but instead of filling in a fixed-sized buffer you
1856 pass, the `a' modifier says to fill in a `char **' you pass with a
1859 * The `fnmatch' function supports the new flag bits `FNM_LEADING_DIR' and
1860 `FNM_CASEFOLD'. `FNM_LEADING_DIR' lets a pattern like `foo*' match a
1861 name like `foo/bar'. `FNM_CASEFOLD' says to ignore case in matching.
1863 * `mkstemp' is a traditional Unix function to atomically create and open a
1864 uniquely-named temporary file.
1868 * The standard location for the file that says what the local timezone is
1869 has changed again. It is now `/usr/local/etc/localtime' (or more
1870 precisely, `${prefix}/etc/localtime') rather than `/etc/localtime'.
1872 * The distribution no longer contains any files with names longer than 14
1875 * `struct ttyent' has two new flag bits: TTY_TRUSTED and TTY_CONSOLE.
1876 These are set by the new `trusted' and `console' keywords in `/etc/ttys'.
1878 * New functions `ttyslot' and `syslog' from 4.4 BSD.
1882 * The configuration process has changed quite a bit. The `configure'
1883 script is now used just like the configuration scripts for other GNU
1884 packages. The `sysdeps' directory hierarchy is much rearranged.
1885 The file `INSTALL' explains the new scheme in detail.
1887 * The header files no longer need to be processed into ANSI C and
1888 traditional C versions. There is just one set of files to install, and
1889 it will work with ANSI or old C compilers (including `gcc -traditional').
1891 * Brendan Kehoe and Ian Lance Taylor have ported the library to the
1892 MIPS DECStation running Ultrix 4.
1894 * The Sun 4 startup code (crt0) can now properly load SunOS 4 shared libraries.
1895 Tom Quinn contributed the initial code. The GNU C library can NOT yet be
1896 made itself into a shared library.
1898 * Yet further improved support for the i386, running 4.3 BSD-like systems
1899 (such as Mach 3 with the Unix single-server), or System V.
1901 * New function `strncasecmp' to do case-insensitive string comparison
1902 with limited length.
1904 * New function `strsep' is a reentrant alternative to `strtok'.
1906 * New functions `scandir' and `alphasort' for searching directories.
1908 * New function `setenv' is a better interface to `putenv'.
1910 * Ian Lance Taylor has contributed an implementation of the SVID `ftw'
1911 function for traversing a directory tree.
1913 * The GNU obstack package is now also part of the C library.
1914 The new function `open_obstack_stream' creates a stdio stream that
1915 writes onto an obstack; `obstack_printf' and `obstack_vprintf' do
1916 formatted output directly to an obstack.
1918 * Miscellaneous new functions: reboot, nice, sigaltstack (4.4 BSD only),
1919 cfmakeraw, getusershell, getpass, swab, getttyent, seteuid, setegid.
1921 * `FNM_FILE_NAME' is another name for `FNM_PATHNAME', used with `fnmatch'.
1923 * The new functions `strfry' and `memfrob' do mysterious and wonderful
1924 things to your strings.
1926 * There are some new test programs: test-fseek, testmb, and testrand.
1928 * Some work has been done to begin porting the library to 4.4 BSD and Linux.
1929 These ports are not finished, but are a good starting place for really
1930 supporting those systems.
1932 * `/etc/localtime' is now the standard location for the file that says what
1933 the local timezone is, rather than `/usr/local/lib/zoneinfo/localtime'.
1934 This follows the general principle that `/etc' is the place for all local
1935 configuration files.
1937 * The C library header files now use `extern "C"' when used by the C++
1938 compiler, so the C library should now work with C++ code.
1940 * The header file <bstring.h> is gone. <string.h> now declares bcopy,
1941 bcmp, bzero, and ffs. (Update: nowadays these functions are declared
1944 * Mike Haertel (of GNU e?grep and malloc fame) has written a new sorting
1945 function which uses the `merge sort' algorithm, and is said to be
1946 significantly faster than the old GNU `qsort' function. Merge sort is
1947 now the standard `qsort' function. The new algorithm can require a lot
1948 of temporary storage; so, the old sorting function is called when the
1949 required storage is not available.
1951 * The C library now includes Michael Glad's Ultra Fast Crypt, which
1952 provides the Unix `crypt' function, plus some other entry points.
1954 * The code and header files taken from 4.4 BSD have been updated with the
1955 latest files released from Berkeley.
1957 ----------------------------------------------------------------------
1958 Copyright information:
1960 Copyright (C) 1992-2009, 2010, 2011 Free Software Foundation, Inc.
1962 Permission is granted to anyone to make or distribute verbatim copies
1963 of this document as received, in any medium, provided that the
1964 copyright notice and this permission notice are preserved,
1965 thus giving the recipient permission to redistribute in turn.
1967 Permission is granted to distribute modified versions
1968 of this document, or of portions of it,
1969 under the above conditions, provided also that they
1970 carry prominent notices stating who last changed them.
1973 version-control: never
projects / platform / upstream / glibc.git / blob