| blob | bb517c2fc44885471160e965d5c5fdbc1b276378 |
1 GNU C Library NEWS -- history of user-visible changes. 2011-10-07
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 2.14.1
10 * The following bugs are resolved with this release:
12 9696, 11724, 12841, 12849, 12852, 12868, 12885, 12922, 12935, 13007,
13 13114
14 \f
15 Version 2.14
17 * The following bugs are resolved with this release:
19 386, 6420, 7101, 9730, 9732, 9809, 10138, 10149, 10157, 11099, 11257,
20 11258, 11487, 11532, 11558, 11578, 11634, 11653, 11668, 11697, 11724,
21 11781, 11799, 11820, 11837, 11857, 11869, 11892, 11895, 11901, 11945,
22 11947, 11952, 11987, 12052, 12083, 12158, 12178, 12200, 12346, 12350,
23 12393, 12420, 12432, 12445, 12449, 12453, 12454, 12460, 12469, 12489,
24 12509, 12510, 12511, 12518, 12527, 12541, 12545, 12551, 12582, 12583,
25 12587, 12597, 12601, 12611, 12625, 12626, 12631, 12650, 12653, 12655,
26 12660, 12671, 12681, 12684, 12685, 12711, 12713, 12714, 12717, 12723,
27 12724, 12734, 12738, 12746, 12766, 12775, 12777, 12782, 12788, 12792,
28 12795, 12811, 12813, 12814, 12841
30 * The RPC implementation in libc is obsoleted. Old programs keep working
31 but new programs cannot be linked with the routines in libc anymore.
32 Programs in need of RPC functionality must be linked against TI-RPC.
33 The TI-RPC implementation is IPv6 enabled and there are other benefits.
35 Visible changes of this change include (obviously) the inability to link
36 programs using RPC functions without referencing the TI-RPC library and the
37 removal of the RPC headers from the glibc headers.
38 Implemented by Ulrich Drepper.
40 * New Linux interfaces: clock_adjtime, name_to_handle_at, open_by_handle_at,
41 syncfs, setns, sendmmsg
43 * New locales: os_RU, bem_ZA, en_ZA, ff_SN, sw_KE, sw_TZ, lb_LU, wae_CH,
44 yue_HK, lij_IT, mhr_RU
46 * New encodings: CP770, CP771, CP772, CP773, CP774
48 * New program sotruss to trace calls through PLTs
49 Implemented by Ulrich Drepper.
51 * The malloc hook implementation is marked deprecated and will be removed
52 from the default implementation in the next version. The design never
53 worked ever since the introduction of threads. Even programs which do
54 not create threads themselves can use multiple threads created internally.
55 \f
56 Version 2.13
58 * The following bugs are resolved with this release:
60 3268, 6812, 7066, 10085, 10484, 10563, 10851, 11149, 11155, 11577, 11611,
61 11640, 11655, 11701, 11840, 11856, 11883, 11903, 11904, 11968, 11979,
62 12005, 12037, 12067, 12077, 12078, 12092, 12093, 12107, 12108, 12113,
63 12140, 12159, 12167, 12191, 12194, 12201, 12204, 12205, 12207, 12348,
64 12378, 12394, 12397
66 * New Linux interfaces: prlimit, prlimit64, fanotify_init, fanotify_mark
68 * POWER7 optimizations: memset, memcmp, strncmp
70 * New optimized string functions for x86-64: strnlen (SSE2),
71 strcasecmp (SSE2, SSSE3, SSE4.2), strncasecmp (SSE2, SSSE3, SSE4.2)
72 Implemented by Ulrich Drepper.
73 \f
74 Version 2.12
76 * The following bugs are resolved with this release:
78 3662, 4457, 5553, 10162, 10401, 10414, 10554, 10824, 10864, 10915, 10918,
79 10936, 10939, 10958, 10968, 10969, 10972, 10992, 11000, 11001, 11007,
80 11010, 11027, 11039, 11040, 11041, 11043, 11046, 11056, 11070, 11093,
81 11115, 11120, 11125, 11126, 11127, 11134, 11141, 11149, 11183, 11184,
82 11185, 11186, 11187, 11188, 11189, 11190, 11191, 11192, 11193, 11194,
83 11200, 11230, 11235, 11242, 11254, 11258, 11271, 11272, 11276, 11279,
84 11287, 11292, 11319, 11332, 11333, 11387, 11389, 11390, 11394, 11397,
85 11410, 11438, 11449, 11470, 11471, 11520, 11537, 11538, 11571
87 * New interfaces: pthread_getname_np, pthread_setname_np
89 * New Linux interface: recvmmsg
91 * STT_GNU_IFUNC implemented for Sparc by David Miller.
93 * The dynamic linker now recognizes supported ABI versions from the
94 EI_ABIVERSION field in the ELF header.
95 Implemented by Ulrich Drepper.
97 * New NIS mode selector ADJUNCT_AS_SHADOW. The passwd.adjunct.byname table
98 will not be used to fill in password fields in the passwd.byname replies.
99 Instead it is used to synthesize the shadow.byname table, should it be
100 missing. This is a useful mode in some installations involving Solaris.
101 Implemented by Ulrich Drepper.
103 * New locales: kok_IN, sq_MK, cv_RU
104 \f
105 Version 2.11
107 * The following bugs are resolved with this release:
109 3270, 7094, 9924, 9986, 10011, 10085, 10107, 10159, 10162, 10166, 10183,
110 10195, 10196, 10200, 10203, 10207, 10211, 10213, 10217, 10221, 10229,
111 10262, 10286, 10312, 10315, 10319, 10349, 10360, 10391, 10402, 10416,
112 10418, 10422, 10425, 10446, 10448, 10452, 10540, 10553, 10560, 10564,
113 10609, 10643, 10692, 10713, 10717, 10730, 10731, 10742, 10780, 10784,
114 10789, 10817, 10823, 10840, 10847
116 * New interfaces: execvpe, pthread_sigqueue, mkstemps, mkstemps64, mkostemps,
117 mkostemps64
118 Implemented by Ulrich Drepper.
120 * Checking version of longjmp added that fails if an uninitialized stack
121 frame would be created. Implemented by Ulrich Drepper.
123 * STT_GNU_IFUNC is now supported in static executables.
124 Implemented by H.J. Lu.
126 * STT_GNU_IFUNC implemented for PPC by Alan Modra.
128 * New optimized string functions for x86-64: strstr, strcasestr, memcmp,
129 strcspn, strpbrk, strspn, strcpy, stpcpy, strncpy, strcmp (SSE2, SSE4.2),
130 strncmp (SSE2, SSE4.2), strchr (SSE4.2), strrchr (SSE4.2).
131 Contributed by H.J. Lu.
133 strlen, rawmemchr, strcmp (SSSE3), strncmp (SSSE3).
134 Implemented by Ulrich Drepper.
136 * New optimized string functions for x86: strlen, strcspn, strspn, strpbrk,
137 strstr, strcasestr.
138 Contributed by H.J. Lu.
140 * Support for fma instruction in AVX on x86-64.
141 Implemented by H.J. Lu and Ulrich Drepper.
143 * AVX support in x86-64 auditing support in ld.so.
144 Implemented by H.J. Lu.
146 * STB_GNU_UNIQUE support added.
147 Implemented by Ulrich Drepper.
149 * Implement second fallback mode for optimized DNS lookup for even more
150 broken environments. If two requests from the same port are not
151 handled correctly close the socket and open a new one before sending
152 the second request. The 'single-request-reopen' option in /etc/resolv.conf
153 can be used to select this mode right away, instead of rediscovering the
154 necessity is every process again.
155 Implemented by Ulrich Drepper.
157 * New resolver flag RES_USE_DNSSEC to enable use of verified lookup.
158 Implemented by Adam Tkac.
160 * Optimized iconv conversions for S390x.
161 Implemented by Andreas Krebbel.
163 * Using condvars with PI mutexes is now more efficient due to kernel
164 support for requeueing to PI futexes. NPTL support added for x86-64.
165 Implemented by Ulrich Drepper.
167 * New locales: ps_AF, my_MM
168 \f
169 Version 2.10
171 * The following bugs are resolved with this release:
173 697, 5381, 5807, 6411, 6545, 7040, 7058, 7067, 7080, 7083, 7095, 7098,
174 9677, 9694, 9697, 9701, 9704, 9705, 9706, 9720, 9726, 9730, 9733, 9736,
175 9741, 9750, 9753, 9759, 9781, 9791, 9793, 9823, 9833, 9844, 9880, 9881,
176 9891, 9893, 9895, 9913, 9916, 9920, 9948, 9955, 9957, 9963, 9985, 10052,
177 10069, 10086, 10087, 10090, 10092, 10093, 10100, 10118, 10128
179 * New interfaces: preadv, preadv64, pwritev, pwritev64, malloc_info
180 Implemented by Ulrich Drepper.
182 * New Linux interfaces: accept4, fallocate, fallocate64.
183 Implemented by Ulrich Drepper.
185 * Correct declarations of string function when used in C++ code. This
186 could lead to compile errors for invalid C++ code.
188 * XPG7/POSIX 2008 compilation environment. Many GNU-specific functions are
189 now in POSIX.
191 * New POSIX 2008 interface: psiginfo
192 Implemented by Ulrich Drepper.
194 * New ISO C++1x interfaces: quick_exit, at_quick_exit
195 Implemented by Ulrich Drepper.
197 * Support for selecting between multiple function definitions at runtime
198 using STT_GNU_IFUNC symbols. Implemented by Ulrich Drepper.
200 * The libcrypt library can now use the hash function implementations in
201 NSS. Implemented by Ulrich Drepper.
203 * The malloc implementation can be compiled to be less memory efficient
204 but higher performing in multi-threaded programs.
205 Implemented by Ulrich Drepper.
207 * New locales: nan_TW@latin, ks_IN
209 * Faster strlen, strchr, strchrnul, strrchr, memchr, and rawmemchr for x86-64.
210 Implemented by Ulrich Drepper.
212 * Extended printf hook support. It is possible to use user-defined types
213 and extend existing format specifiers.
214 Implemented by Ulrich Drepper.
216 * Handling for group shadow files has been added.
217 Implemented by Ulrich Drepper.
219 * DNS IPv4-IPv6 parallel lookup now deals better with broken DNS
220 servers (the case, e.g., for some people using the built-in DNS
221 server in ADSL modems/routers). There is a once-per-process timeout
222 in case of a broken server. To avoid it, users can run nscd or put
223 'options single-request' in /etc/resolv.conf.
224 Implemented by Ulrich Drepper.
225 \f
226 Version 2.9
228 * The following bugs are resolved with this release:
230 3406, 5209, 5210, 5381, 5794, 5814, 5911, 6428, 6438, 6442, 6447, 6461,
231 6472, 6505, 6544, 6589, 6612, 6634, 6653, 6654, 6657, 6698, 6712, 6713,
232 6719, 6723, 6724, 6740, 6763, 6771, 6790, 6791, 6817, 6824, 6839, 6843,
233 6845, 6856, 6857, 6860, 6867, 6875, 6919, 6920, 6942, 6947, 6955, 6966,
234 6968, 6974, 6980, 6995, 7008, 7009, 7029
236 * Unified lookup for getaddrinfo: IPv4 and IPv6 addresses are now looked
237 up at the same time. Implemented by Ulrich Drepper.
239 * TLS descriptors for LD and GD on x86 and x86-64.
240 Implemented by Alexandre Oliva.
242 * getaddrinfo now handles DCCP and UDPlite.
243 Implemented by Ulrich Drepper.
245 * New fixed-size conversion macros: htobe16, htole16, be16toh, le16toh,
246 htobe32, htole32, be32toh, le32toh, htobe64, htole64, be64toh, le64toh.
247 Implemented by Ulrich Drepper.
249 * New implementation of memmem, strstr, and strcasestr which is O(n).
250 Implemented by Eric Blake.
252 * New Linux interfaces: inotify_init1, dup3, epoll_create1, pipe2
254 * Implement "e" option for popen to open file descriptor with the
255 close-on-exec flag set. Implemented by Ulrich Drepper.
257 * Implement "b" mode for fmemopen. In this mode writes writes don't
258 implicitly add a NUL byte and seeks from the end of the buffer really
259 use the buffer end, not the string length as the basis.
260 Implemented by Ulrich Drepper.
262 * Many functions, exported and internal, now atomically set the close-on-exec
263 flag when run on a sufficiently new kernel. Implemented by Ulrich Drepper.
265 * Sorting rules for some Indian languages (Kannada, Gurumukhi, Telugu,
266 Sinhala)
267 Implemented by Pravin Satpute.
269 * New locales: sd_IN, sd_IN@devanagari, ks_IN@devanagari, ht_HT, en_AG, nl_AW.
270 \f
271 Version 2.8
273 * The following bugs are resolved with this release:
275 2549, 3112, 4314, 4407, 4997, 5012, 5040, 5112, 5204, 5208, 5209, 5220,
276 5222, 5224, 5225, 5237, 5238, 5240, 5245, 5277, 5346, 5375, 5378, 5382,
277 5424, 5427, 5428, 5435, 5436, 5439, 5441, 5442, 5443, 5451, 5452, 5454,
278 5455, 5463, 5464, 5465, 5475, 5477, 5478, 5520, 5541, 5545, 5553, 5600,
279 5602, 5607, 5614, 5627, 5628, 5736, 5737, 5741, 5753, 5760, 5762, 5768,
280 5774, 5777, 5778, 5779, 5786, 5790, 5818, 5854, 5857, 5903, 5939, 5979,
281 5983, 5995, 5998, 6004, 6007, 6020, 6021, 6024, 6040, 6042
283 * New locales: bo_CN, bo_IN, shs_CA.
285 * New encoding: HP-ROMAN9, HP-GREEK8, HP-THAI8, HP-TURKISH8.
287 * Sorting rules for some Indian languages (Devanagari and Gujarati).
288 Implemented by Pravin Satpute.
290 * IPV6 addresses in /etc/resolv.conf can now have a scope ID
292 * nscd caches now all timeouts for DNS entries
293 Implemented by Ulrich Drepper.
295 * nscd is more efficient and wakes up less often.
296 Implemented by Ulrich Drepper.
298 * More checking functions: asprintf, dprintf, obstack_printf, vasprintf,
299 vdprintf, and obstack_vprintf.
300 Implemented by Jakub Jelinek.
302 * Faster memset for x86-64.
303 Implemented by Harsha Jagasia and H.J. Lu.
305 * Faster memcpy on x86.
306 Implemented by Ulrich Drepper.
308 * ARG_MAX is not anymore constant on Linux. Use sysconf(_SC_ARG_MAX).
309 Implemented by Ulrich Drepper.
311 * Faster sqrt and sqrtf implemention for some PPC variants.
312 Implemented by Stephen Munroe.
313 \f
314 Version 2.7
316 * The following bugs are resolved with this release:
318 4125, 4126, 4178, 4359, 4407, 4512, 4514, 4525, 4554, 4556, 4557, 4566,
319 4582, 4586, 4588, 4599, 4610, 4647, 4702, 4705, 4726, 4745, 4772, 4773,
320 4775, 4776, 4792, 4813, 4814, 4816, 4833, 4858, 4860, 4896, 4905, 4925,
321 4936, 4937, 4938, 4941, 4946, 4963, 4972, 5010, 5028, 5043, 5058, 5063,
322 5071, 5103, 5104, 5112, 5113, 5184, 5186
324 * More checking functions: fread, fread_unlocked, open*, mq_open.
325 Implemented by Jakub Jelinek and Ulrich Drepper.
327 * Extend fortification to C++. Implemented by Jakub Jelinek.
329 * Implement 'm' modifier for scanf. Add stricter C99/SUS compliance
330 by not recognizing 'a' as a modifier when those specs are requested.
331 Implemented by Jakub Jelinek.
333 * PPC optimizations to math and string functions.
334 Implemented by Steven Munroe.
336 * New interfaces: mkostemp, mkostemp64. Like mkstemp* but allow additional
337 options to be passed. Implemented by Ulrich Drepper.
339 * More CPU set manipulation functions. Implemented by Ulrich Drepper.
341 * New Linux interfaces: signalfd, eventfd, eventfd_read, and eventfd_write.
342 Implemented by Ulrich Drepper.
344 * Handle private futexes in the NPTL implementation.
345 Implemented by Jakub Jelinek and Ulrich Drepper.
347 * Add support for O_CLOEXEC. Implement in Hurd. Use throughout libc.
348 Implemented by Roland McGrath and Ulrich Drepper.
350 * Linux/x86-64 vDSO support. Implemented by Ulrich Drepper.
352 * SHA-256 and SHA-512 based password encryption.
353 Implemented by Ulrich Drepper.
355 * New locales: ber_DZ, ber_MA, en_NG, fil_PH, fur_IT, fy_DE, ha_NG, ig_NG,
356 ik_CA, iu_CA, li_BE, li_NL, nds_DE, nds_NL, pap_AN, sc_IT, tk_TM, ug_CN,
357 yo_NG.
359 + New iconv modules: MAC-CENTRALEUROPE, ISO-8859-9E, KOI8-RU.
360 Implemented by Ulrich Drepper.
361 \f
362 Version 2.6
364 * The following bugs are resolved with this release:
366 3156, 3213, 3285, 3291, 3306, 3313, 3320, 3322, 3325, 3326, 3334, 3348,
367 3352, 3363, 3369, 3426, 3427, 3429, 3451, 3458, 3465, 3480, 3483, 3493,
368 3514, 3515, 3559, 3632, 3664, 3673, 3674, 3745, 3747, 3818, 3840, 3842,
369 3851, 3855, 3884, 3885, 3902, 3905, 3919, 3944, 3954, 3955, 3957, 3991,
370 3995, 3996, 4024, 4040, 4069, 4070, 4074, 4076, 4096, 4101, 4102, 4114,
371 4130, 4131, 4181, 4276, 4306, 4342, 4344, 4349, 4364, 4368, 4381, 4392,
372 4403, 4405, 4406, 4411, 4438, 4439, 4455, 4456, 4465, 4512, 4514, 4586,
373 4702, 4858
375 * New Linux interfaces: epoll_pwait, sched_getcpu.
377 * New generic interfaces: strerror_l.
379 * nscd can now cache the services database. Implemented by Ulrich Drepper.
380 \f
381 Version 2.5
383 * The following bugs are resolved with this release:
385 39, 68, 192, 352, 388, 531, 935, 1006, 1201, 1203, 1386, 1782, 1783, 1784,
386 1785, 1786, 1787, 1951, 1974, 1996, 2072, 2098, 2125, 2134, 2158, 2182,
387 2349, 2376, 2386, 2389, 2415, 2418, 2420, 2423, 2450, 2451, 2466, 2472,
388 2473, 2477, 2498, 2499, 2501, 2502, 2505, 2507, 2508, 2509, 2517, 2526,
389 2569, 2571, 2592, 2611, 2625, 2632, 2644, 2662, 2680, 2683, 2684, 2693,
390 2695, 2703, 2734, 2751, 2764, 2766, 2775, 2792, 2821, 2823, 2832, 2841,
391 2843, 2883, 2892, 2908, 2914, 2926, 2961, 2978, 2980, 2987, 2997, 2998,
392 3013, 3018, 3034, 3040, 3044, 3123, 3124, 3137, 3138, 3143, 3155, 3189,
393 3225, 3251, 3252, 3253, 3273
395 * For Linux, the sorting of addresses returned by getaddrinfo now also
396 handles rules 3, 4, and 7 from RFC 3484. I.e., all rules are handled.
397 Implemented by Ulrich Drepper.
399 * Allow system admin to configure getaddrinfo with the /etc/gai.conf file.
400 Implemented by Ulrich Drepper.
402 * New Linux interfaces: splice, tee, sync_file_range, vmsplice.
404 * New iconv module for MIK. Contributed by Alexander Shopov.
406 * For sites with broken group and/or passwd database, the auto-propagate
407 option of nscd can prevent creating ID lookup entries from the results
408 of a name lookup and vice versa. This usually is no problem but some
409 site might have problems with the default behavior.
410 Implemented by Ulrich Drepper.
412 * Iterating over entire database in NIS can be slow. With the
413 SETENT_BATCH_READ option in /etc/default/nss a system admin can decide
414 to trade time for memory. The entire database will be read at once.
415 Implemented by Ulrich Drepper.
417 * The interfaces introduced in RFC 3542 have been implemented by
418 Ulrich Drepper.
420 * Support for the new ELF hash table format was added by Ulrich Drepper.
422 * Support for priority inheritance mutexes added by Jakub Jelinek and
423 Ulrich Drepper.
425 * Support for priority protected mutexes added by Jakub Jelinek.
427 * New locales: nr_ZA, pa_PK, ca_AD, ca_FR, ca_IT, el_CY, tr_CY, as_IN,
428 or_IN, csb_PL, fy_NL, sr_ME.
429 \f
430 Version 2.4
432 * More overflow detection functions.
434 * New iconv converters for IBM1025, IBM1122, IBM1137, IBM1153,
435 IBM1154, IBM1155, IBM1156, IBM1157, and IBM1158 contributed by Jiro Sekiba.
437 More converters for IBM803, IBM901, IBM902, IBM921, IBM1008, IBM1097,
438 IBM1112, IBM1123, IBM1130, IBM1140, IBM1141, IBM1142, IBM1143, IBM1144,
439 IBM1145, IBM1146, IBM1147, IBM1148, IBM1149, IBM1166, IBM1167, IBM4517,
440 IBM4899, IBM4909, IBM4971, IBM5347, IBM9030, IBM9066, IBM9448, IBM12712,
441 IBM16804, IBM1364, IBM1371, IBM1388, IBM1390, and IBM1399 contributed
442 by Masahide Washizawa.
444 * It is now possible to install audit libraries for the dynamic linker using
445 LD_AUDIT. Implemented by Ulrich Drepper.
447 * The LinuxThreads add-on, providing pthreads on Linux 2.4 kernels, is no
448 longer supported. The new NPTL implementation requires Linux 2.6 kernels.
449 For a libc and libpthread that works well on Linux 2.4 kernels, we
450 recommend using the stable 2.3 branch.
452 * The new function open_wmemstream acts like open_memstream,
453 but uses a wchar_t wide character buffer.
455 * The new function ppoll is an improved version of poll, similar to pselect.
457 * New interfaces: fdopendir, openat, fstatat, fchmodat, fchownat,
458 futimesat, faccessat, mkdirat, mkfifoat, mknodat,
459 renameat, unlinkat, linkat, symlinkat, readlinkat.
461 * New Linux kernel system calls: unshare,
462 inotify_init, inotify_add_watch, inotify_rm_watch.
464 * The euidaccess function is now also known by the alias eaccess,
465 for compatibility with some other systems.
467 * Timezone data updated to 2006b version.
468 \f
469 Version 2.3.6
471 * The following bugs are resolved with this release:
473 38, 253, 549, 622, 653, 721, 758, 851, 877, 915, 934, 955, 961,
474 1016, 1037, 1076, 1079, 1080, 1081, 1082, 1083, 1084, 1085, 1086,
475 1087, 1088, 1090, 1091, 1092, 1093, 1094, 1095, 1096, 1097, 1098,
476 1099, 1100, 1101, 1102, 1103, 1104, 1105, 1106, 1107, 1108, 1109,
477 1110, 1111, 1112, 1113, 1125, 1137, 1138, 1249, 1250, 1251, 1252,
478 1253, 1254, 1350, 1358, 1394, 1438, 1498, 1534
480 Visit <http://sources.redhat.com/bugzilla/> for the details of each bug.
482 * As of this release, GCC 4 can be used to compile the C Library.
484 * Timezone data updated to 2005m version.
485 \f
486 Version 2.3.5
488 * The following bugs are resolved with this release:
490 284, 592, 602, 626, 633, 640, 650, 661, 671, 681, 693, 700, 710, 719,
491 722, 723, 725, 726, 727, 728, 729, 730, 731, 732, 733, 734, 735, 736,
492 737, 738, 739, 740, 741, 742, 743, 744, 745, 765, 767, 768, 769, 776,
493 777, 787, 821, 822, 823, 825
495 Visit <http://sources.redhat.com/bugzilla/> for the details of each bug.
496 \f
497 Version 2.3.4
499 * Support for RFC 3678. Real implementations exist only for Linux so far.
500 Implemented by Ulrich Drepper.
502 * nscd can now cache entries persistently. Expiring entries are reloaded.
503 For speedups the cache can be shared in memory with client processes.
504 Implemented by Ulrich Drepper.
506 * nscd can now perform SELinux checks.
507 Implemented by Matthew Rickard <mjricka@epoch.ncsc.mil>.
509 * getaddrinfo queries are now cached. Canonical name lookup is performed
510 efficiently.
511 Implemented by Ulrich Drepper.
513 * The nothrow function attribute is used when headers are used by gcc when
514 compiling C code. This can avoid significant amounts of exception
515 handling data.
517 * The malloc functions perform more error checking and are stricter when
518 it comes to reacting on errors. The default action is to terminate
519 the process after showing an error message. Implemented by Ulrich Drepper.
521 * Reverse lookups of IPv6 addresses does not use bit string or .ip6.int
522 lookups anymore unless explicitly requested. Implemented by Ulrich Drepper.
524 * Namespaces in ld.so are implemented. DSOs can be loaded in separate
525 namespaces using the new function dlmopen(). This feature is of course,
526 like most other dynamic loading functionality, not available in statically
527 linked applications. Implemented by Ulrich Drepper.
529 * Low-overhead boundary checking variants of string and some stdio functions
530 were added. These are to be used in conjunction with a gcc patch by
531 Jakub Jelinek which adds calls to these functions if possible.
532 Implemented by Jakub Jelinek and Ulrich Drepper.
534 * Old code for several operating systems and machine architectures that
535 have not been in working condition in a long time have been removed from
536 the main source tree maintained by the GNU C Library's maintainers.
537 These files are now reside in the separate `ports' source module
538 that is usable as an add-on when building the library.
539 \f
540 Version 2.3.3
542 * New functions `dladdr1' and `dlinfo' in <dlfcn.h> provide more ways to
543 interrogate the dynamic linker, compatible with the Solaris interface.
545 * ELF thread-local storage support (TLS) now works on PowerPC and PowerPC64;
546 implemented by Paul Mackerras, Steven Munroe, and Roland McGrath.
548 * getifaddrs now uses the netlink interface on Linux to get its information.
549 Implemented by Thorsten Kukuk.
551 * getaddrinfo now implements AI_V4MAPPED, AI_ALL, and AI_ADDRCONF.
552 Implemented by Ulrich Drepper.
554 * support for non-executable stacks on x86 has been added. Changes mostly
555 by Roland McGrath.
557 * regex is now much faster for multibyte locales. Changes by Jakub Jelinek
558 and Ulrich Drepper.
560 * getaddrinfo now performs destination address selection according to
561 RFC 3484.
562 \f
563 Version 2.3.2
565 * Thread-safe interfaces for many functions that access locale data
566 were added in version 2.3, but these features were omitted from NEWS.
567 Many functions have variants with an `_l' suffix that take a `locale_t'
568 object as a parameter rather than consulting the current locale.
569 The new functions `newlocale', `duplocale', and `freelocale' in <locale.h>
570 create and maintain `locale_t' objects. Additionally, the new function
571 `uselocale' sets "the current locale" (as used by functions not so
572 parameterized) set for an individual thread. These features were added
573 in version 2.3, implemented by Ulrich Drepper and Roland McGrath.
575 * The functions getresuid, getresgid, setresuid, and setresgid, which
576 have long been available on Linux, are now declared in <unistd.h>
577 and are now also available on the Hurd.
579 * ELF thread-local storage support (TLS) now works on x86-64.
581 * The new dynamic string token $LIB is expanded in shared library names.
582 This normally expands to lib, but on some 64-bit platforms to lib64 instead.
584 * Aldy Hernandez contributed complete software floating point support for
585 PowerPC machines with no FPU.
587 * fexecve is implemented on Linux.
589 * The `btowc' function should work at least twice as fast due to
590 specialized callbacks in the iconv modules. Implemented by Bruno Haible.
592 * With approriate thread add-ons cancelable functions are now implemented
593 in libc.so as well. No need to call the function in libpthread. This
594 change allowed to finally disable the incorrect and expensive handling
595 of weak definition in ld.so.
597 * Yet more PLT entries in libc.so have been removed. We finally arrived
598 at the bare minimum. Startup times improved appropriately.
600 * Support for the new Linux/x86 system call interface was added. The
601 AT_SYSINFO auxiliary vector entry is recognized and handled.
602 \f
603 Version 2.3
605 * Masahide Washizawa contributed iconv modules for IBM1163 and IBM1164
606 charsets.
608 * iconv (the program and the interface) now accepts empty names (excluding
609 options like //TRANSLIT) to mean "use charset of current locale".
611 * localedef can now transliterate characters in strings which are not in
612 the provided charmap. The information from the input locale is used.
614 * Prelinking support was added for ELF targets. This requires additional
615 tools and recent versions of the GNU binutils. Contributed by Jakub Jelinek.
617 * Read-only stdio streams now use mmap to speed up operation by eliminating
618 copying and buffer underflows. To use add 'm' to the mode string of
619 the fopen/fdopen/freopen call. Implemented by Ulrich Drepper.
621 * The malloc functions were completely rewritten by Wolfram Gloger based
622 on Doug Lea's malloc-2.7.0.c.
624 * Isamu Hasegawa contributed a completely new and POSIX-conformant
625 implementation of regex.
627 * Bruno Haible upgraded the iconv and locale implementation to support
628 Unicode 3.2.
630 * Contents of the LC_* and LANG environment variables in the CEN style are
631 not recognized anymore. It never was used. Change by Ulrich Drepper.
633 * The runtime (ld.so, libc, libpthread for Linux) now can handle the ELF
634 thread-local storage (TLS) ABI on some platforms.
635 Changes by Ulrich Drepper. SH support by Kaz Kojima.
637 * Bruno Haible contributed iconv converters for ISO-2022-JP-3, SHIFT JIS-X0213,
638 EUC-JISX0213, and TSCII.
640 * New header <ifaddrs.h> with functions `getifaddrs' and `freeifaddrs':
641 BSD-compatible interface for getting all network interface addresses.
642 Implementation for IPv4 by Roland McGrath.
644 * Loading of locale data is faster due to the introduction of a locale
645 archive. Implemented by Roland McGrath and Ulrich Drepper.
647 * Startup times are significantly reduced by not using exported functions
648 inside the library itself. Changes by Jakub Jelinek, Roland McGrath,
649 and Ulrich Drepper.
651 * Steven Munroe contributed a port to PowerPC64/Linux.
652 \f
653 Version 2.2.6
655 * The Hurd now uses the GNU libio implementation of stdio rather than the
656 old GNU stdio implementation, and uses a new ABI (libc.so.0.3).
658 * The Hurd on x86 now has the `ioperm' function and <sys/io.h> header file
659 with the same behavior as the Linux system call of the same name.
660 \f
661 Version 2.2.5
663 * Stephen Moshier implemented log2, log10, powl and cbrtl for the
664 128-bit long double format.
666 * Masahide Washizawa contributed iconv modules for IBM1132, IBM1133, IBM1160,
667 IBM1161, and IBM1162 charsets.
669 * Andreas Jaeger contributed a port to x86-64/Linux.
671 * Peter Bruin contributed a port to PowerPC/Hurd.
673 * libc functions using I/O streams now can handle wide-oriented streams
674 as well.
676 * optimizations in the dynamic linker. Binaries created by recent binutils
677 versions start up quicker due to reduced time spent on relocations.
679 * Support for use of gcc3 added by Jakub Jelinek and HJ Lu.
680 \f
681 Version 2.2.4
683 * Stephen Moshier implemented cosh, expm1, log1p, acos, sinh, tanh,
684 asinh, atanh, j0 for the 128-bit long double format.
686 * Bruno Haible updated all the code handling Unicode in some form to
687 support Unicode 3.1.
689 * Speed of regex for single-byte locales is back to previous levels.
690 Patch by Isamu Hasegawa.
692 * Alpha, SPARC, and IA-64 now also using floating stacks.
694 * Startup time of internationalized applications greatly improved through
695 iconv cache. Use iconvconfig to generate the cache file.
696 Contributed by Ulrich Drepper.
698 * The IA-64 specific part of ld.so was rewritten to eliminate some pretty
699 severe performance problems. Patch by David Mosberger.
701 * The Hurd port got a lot more functionality like AIO, various stdio
702 extensions, etc. Mainly done by Roland McGrath.
704 * mtrace can now lookup symbols in shared libraries.
705 \f
706 Version 2.2.3
708 * Intel's IA-64 math library is largely integrated. It provides fast and
709 accurate implementatations for most basic and standard math functions
710 in float, double, and long double format.
712 * Stephen Moshier implemented j0, j1, jn, y0, y1, yn, lgamma, erf, erfc,
713 and asin for the 96-bit long double format and asin, log, tan for the
714 128-bit long double format.
716 * The beginning of a last-bit accurate math library by IBM Haifa were added.
717 The basic double functions exist today. Contributed by Abraham Ziv
718 <ziv@il.ibm.com>, Moshe Olshansky <olshansk@il.ibm.com>, Ealan Henis
719 <ealan@il.ibm.com>, and Anna Reitman <reitman@il.ibm.com>.
721 * An asynchronous name lookup library was added. The interface is designed
722 after POSIX AIO. The proposal was circulated beforehand to get comments.
723 No negative ones came in. Implemented by Ulrich Drepper.
725 * Port to S390/64bit contributed by Martin Schwidefsky
726 <schwidefsky@de.ibm.com>.
728 * David Mosberger <davidm@hpl.hp.com> implemented the setcontext family
729 of functions for Linux/IA-64.
731 * The RPC code is now thread safe. Threads can now use the same service
732 of different services at the same time. Patch by Eric Norum
733 <eric.norum@usask.ca> with some help by Ulrich Drepper.
735 * Martin Schwidefsky <schwidefsky@de.ibm.com> implemented the setcontext
736 family of functions for Linux/S390.
738 * Ulrich Drepper <drepper@redhat.com> implemented the setcontext family
739 of functions for Linux/x86.
741 * Port to Linux/CRIS contributed by Axis Communications.
742 \f
743 Version 2.2.2
745 * Lots of headers were cleaned up. Using the tool in the conform/ subdir
746 we can now check for namespace violations and missing declarations. The
747 result is that almost all headers are now Unix-compliant (as defined in
748 the upcoming XPG6). The negative side is that some programs might need
749 corrections, too, if they depend on the incorrect form of the headers in
750 previous versions which defined too many symbols and included too many
751 other headers.
753 * regex now handles multibyte character sets correctly.
754 Contributed by Isamu Hasegawa <isamu@yamato.ibm.com>.
756 * iconv (the program) does now conform to the upcoming XPG6 and handles
757 charmaps. Instead of the charset names the path of charmaps can be
758 provided and the conversion happens based on this data.
759 Contributed by Ulrich Drepper.
761 * The locale program now provides detailed information about the installed
762 locales. While
764 locale -a
766 only lists the names of the supported locales
768 locale -a --verbose
770 provides details such as country, language, and codeset name.
771 Contributed by Ulrich Drepper.
772 \f
773 Version 2.2.1
775 * The gencat program now parses the input file according to the charset
776 selected by the LC_CTYPE category. This is important for stateful
777 character sets. To make generating catalogs easier there is a way
778 to overwrite the charset selected by the locale: before the first
779 message or $ quote line the catalog can contain a line like
781 $ codeset=ISO-8859-2
783 to select the charset (ISO-8859-2 in this case).
785 Implemented by Shinya Hanataka and Ulrich Drepper.
787 * New codeset conversion modules: IBM-922 (Estonia PC codeset),
788 IBM-1124 (Ukraine PC codeset), IBM-1129 (Vietnamese PC codeset).
789 Contributed by Masahide Washizawa <washi@jp.ibm.com>.
791 * Optimized string functions for Alpha ev6 and ev67 by Richard Henderson
792 <rth@redhat.com> and Rick Gorton <rick.gorton@alpha-processor.com>.
794 * The LANGUAGE environment variable is now ignored unless the locale is
795 changed from the default "C" locale.
797 * The usual bug fixes.
798 \f
799 Version 2.2
801 * Greg McGary added runtime support for bounds checking using gcc's
802 new -fbounded-pointers option. ix86 target is complete. PowerPC
803 is in progress.
805 * Thorsten Kukuk added secure mode support to nscd.
807 * The Berkeley db libraries have been removed.
809 Related, the nss_db module is now in a separate package since it
810 obviously requires a database library being available.
812 * Wide character I/O streams implemented by Ulrich Drepper.
814 * Functions from the extended socket API added by Ulrich Drepper.
816 * Functions feenableexcept and fedisableexcept to control the
817 behaviour of individual exceptions have been added by Andreas Jaeger.
819 * ldconfig program added by Andreas Jaeger and Jakub Jelinek.
821 * The resolver code has been updated from bind 8.2.3-T5B which supports
822 threads. The integration was done by Andreas Jaeger, Adam D. Bradley,
823 and Mark Kettenis.
825 This change could in some situations effect backward compatibility. Since
826 now `_res' is a thread-local instead of a global variable, modifying it
827 in one thread does not have any effect in other threads.
829 The resolver library was also extended to allow IPv6 as the transport
830 protocol for the requests. This work was done by Stig Venaas.
832 * Compatibility code for K&R C compilers has been removed from the
833 header files. A ISO C compiler is needed to use the library
834 (conforming to either C89 or C99 standard).
836 * Complete rewrite of the localedef program to support multibyte character
837 sets. Implement handling of ISO 14651 and ISO 14652. Rewrite strcoll,
838 strxfrm, wcscoll, and wcsxfrm functions. Make isw*() functions work.
839 Implemented by Ulrich Drepper.
841 Bruno Haible significantly improved the generation and use of the data
842 structures for the wide character tables.
844 * Plural handling in gettext implemented by Ulrich Drepper.
846 * The utmp daemon has been removed.
848 * The port to MIPS-Linux has been finished by Andreas Jaeger.
850 * A port to Hitachi SH3 and SH4 has been contributed by Kazumoto Kojima
851 and Yutaka Niibe.
853 * POSIX clocks and timers implemented by Kaz Kylheku and Ulrich Drepper.
855 * POSIX barriers implemented by Kaz Kylheku.
857 * POSIX spawn function family implemented by Ulrich Drepper.
859 * POSIX spinlocks are now available.
861 * Timed wait functions for mutex, rwlock, and semaphores are implemented.
863 * the configure option --enable-kernel=X.Y.Z allows to strip out
864 compatibility for kernel versions before X.Y.Z. This is currently only
865 implemented for Linux.
867 * the sockaddr_in6 structure changed. The IPv6 working group added a new
868 field sin6_scope_id. This means that all programs using IPv6 should be
869 recompiled. Don't expect binary compatibility with previous glibc
870 versions.
872 * various conversion modules for IBM character sets contributed by
873 Masahide Washizawa.
875 * IA-64 port by Jes Sorensen and HJ Lu.
877 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
878 Compiling the GNU C Library for Linux/ia64
879 ******************************************
881 Please refer to the file INSTALL in the same directory as you found
882 this file for general information about configuring and compiling
883 glibc.
885 For general inquiries about glibc under Linux/ia64 please use the
886 following mailing list linux-ia64@linuxia64.org or one of the relevant
887 glibc mailing lists.
889 Recommended Tools for Compilation
890 =================================
892 In order for glibc-2.2 to build correctly on the ia64 you need at
893 least the following versions of the GNU tools (the :
895 * The Cygnus toolchain snapshot for the ia64 as of August 4
896 including the provided set of patches. It is however recommend
897 you use the October 24 toolchain snapshot or a more recent version.
899 OR alternatively you can try the following (the Cygnus toolchain is
900 the recommended solution):
902 * GCC and binutils, GAS and GNU LD out of CVS from
903 sources.redhat.com as of August 28, 2000 or later. The CVS tree
904 may require special patches to work properly on the ia64.
906 Configuring and compiling GNU Libc for Linux/ia64
907 =================================================
909 The library requires Linux kernel version 2.4.0-test4-000728 or
910 later to funtion properly. Besides that it support for debug libraries
911 is currently untested. Hence the following options
912 are required for configuring the library:
914 --disable-debug --enable-kernel=2.4.0
916 It is also important that you make sure the library picks up the
917 appropriate kernel header files, if you do not have recent enough
918 kernel headers in /usr/src/linux/include, you should use the
919 --with-headers=<path> option to specify the location.
921 As an example I personally use the following options to configure
922 the library:
924 --disable-debug
925 --disable-cvs
926 --enable-kernel=2.4.0
927 --host=ia64-linux
928 --enable-add-ons=yes
929 --prefix=/usr
930 --with-headers=/home/jes/linux/include
933 Good luck
935 Jes Sorensen <jes@linuxcare.com>,
936 November 14th, 2000
937 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
938 \f
939 Version 2.1.3
941 * bug fixes
943 \f
944 Version 2.1.2
946 * bug fixes
948 \f
949 Version 2.1.1
951 * New ISO C 9x function _Exit, imaxabs, and imaxdiv are added.
953 * New xdr functions are added; some rpc functions are now 64bit clean.
955 * Fixed a number of bugs and memory leaks (especially in NIS+ code).
957 * Fixed known incompatibilities with glibc 2.0.
959 * New functions lock64, strchrnul, rawmemchr, getutmp and getutmpx.
961 * Optimized a number of functions (especially the ELF dynamic loader).
963 * Update timezone data files.
965 * lots of charmaps corrections
967 * some new locale definitions and charmaps
969 \f
970 Version 2.1
972 * Richard Henderson corrected size of struct timeval on Linux/Alpha to
973 conform to POSIX member type requirements. Symbol versions have been
974 adjusted as needed within the library, and for direct use by applications,
975 but there is potential for problems if third-party libraries use
976 struct timeval as part of their interface. This does not present
977 a problem for X and other "essential" system libraries.
979 * An additional locale model to support C++ Standard Library locale
980 model and probably more was implemented by Ulrich Drepper.
982 * Eric Youngdale and Ulrich Drepper implemented versioning of objects on
983 symbol level.
985 * Miles Bader provided the `argp' function family to support hierachical
986 command line argument parsing, layered on top of getopt.
988 * strtod accepts new hexadecimal floating-point format from ISO C 9X.
990 * printf has two new specifiers %a and %A to print hexadecimal flaoting-point
991 numbers.
993 * scanf recognizes the %a and %A format for scanning floating point numbers.
995 * the new headers <stdint.h> and <inttypes.h> from ISO C 9X provides
996 information and interfaces for the available integer types.
998 * about 130 new math functions were added to implement the ISO C9x math
999 library.
1001 * the new header <complex.h> contains definitions of the complex math
1002 functions from ISO C 9X.
1004 * the new header <tgmath.h> defines generic macros to use complex or
1005 real valued functions.
1007 * Thorsten Kukuk provided an implementation for NIS+, securelevel 0, 1 and 2.
1009 * Andreas Jaeger provided a test suite for the math library.
1011 * Mark Kettenis implemented the utmpx interface and an utmp daemon.
1013 * Ulrich Drepper added character set conversion functions (iconv).
1015 * Optimized string functions have been added.
1017 * The localedata addon is now part of glibc.
1019 * An implementation of profiling shared libraries was added by Ulrich Drepper.
1021 * Thorsten Kukuk and Ulrich Drepper provided an implementation for a caching
1022 daemon for NSS (nscd).
1024 Missing a better place here are some numbers on improvements. Under
1025 Linux 2.1.125 un-tar-ing the kernel sources takes
1027 user system wall
1029 using local files 12.19s 6.88s 22.91s
1031 using NIS 13.92s 8.91s 26.34s
1033 using NIS & nscd 10.37s 7.34s 25.30s
1035 using NIS+ 27.57s 30.37s 640.46s
1037 using NIS+ & nscd 10.25s 7.83s 26.51s
1039 using NIS & old nscd [1] 13.83s 8.32s 29.60s
1041 Keep in mind that non-namelookup related operations dominate above times.
1042 It was just a common complain that using NIS+ unpacking the kernel is
1043 horribly slow.
1045 [1] The old nscd implementation is not available anymore since it was
1046 distributed with glibc up to version 2.0.98 and thus is now replaced.
1048 * Tim Waugh provided an implementation of the POSIX.2 wordexp function family.
1050 * Mark Kettenis provided a Hesiod NSS module.
1052 * The ELF dynamic loader knows how to process dynamic string tokens ($ORIGIN
1053 and $PLATFORM) in RPATHs and similar strings (Ulrich Drepper).
1055 * rcmd can now handle netgroups (Dick Streefland).
1057 * A port to the ARM was contributed by Phil Blundell, Pat Beirne and Scott
1058 Bambrough.
1060 * Support for the IPv6 protocol has been added to the socket API, as per the
1061 latest draft standards.
1063 * Support for Linux 2.2 has been added.
1065 * Interface changes relative to the latest 2.0.x release:
1066 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1067 addseverity NEW: Unix98
1068 alphasort64 NEW: LFS
1069 argp_err_exit_status NEW: argp, GNU ext
1070 argp_error NEW: argp, GNU ext
1071 argp_failure NEW: argp, GNU ext
1072 argp_help NEW: argp, GNU ext
1073 argp_parse NEW: argp, GNU ext
1074 argp_program_bug_address NEW: argp, GNU ext
1075 argp_program_version NEW: argp, GNU ext
1076 argp_program_version_hook NEW: argp, GNU ext
1077 argp_state_help NEW: argp, GNU ext
1078 argp_usage NEW: argp, GNU ext
1079 authdes_create NEW: Secure RPC
1080 authdes_getucred NEW: Secure RPC
1081 authdes_pk_create NEW: Secure RPC
1082 backtrace NEW: GNU ext.
1083 backtrace_symbols NEW: GNU ext.
1084 backtrace_symbols_fd NEW: GNU ext.
1085 cacos NEW: ISO C 9x
1086 cacosf NEW: ISO C 9x
1087 cacosh NEW: ISO C 9x
1088 cacoshf NEW: ISO C 9x
1089 cacoshl NEW: ISO C 9x
1090 cacosl NEW: ISO C 9x
1091 capget NEW: kernel
1092 capset NEW: kernel
1093 carg NEW: ISO C 9x
1094 cargf NEW: ISO C 9x
1095 cargl NEW: ISO C 9x
1096 casin NEW: ISO C 9x
1097 casinf NEW: ISO C 9x
1098 casinh NEW: ISO C 9x
1099 casinhf NEW: ISO C 9x
1100 casinhl NEW: ISO C 9x
1101 casinl NEW: ISO C 9x
1102 catan NEW: ISO C 9x
1103 catanf NEW: ISO C 9x
1104 catanh NEW: ISO C 9x
1105 catanhf NEW: ISO C 9x
1106 catanhl NEW: ISO C 9x
1107 catanl NEW: ISO C 9x
1108 cbc_crypt NEW: Secure RPC
1109 ccos NEW: ISO C 9x
1110 ccosf NEW: ISO C 9x
1111 ccosh NEW: ISO C 9x
1112 ccoshf NEW: ISO C 9x
1113 ccoshl NEW: ISO C 9x
1114 ccosl NEW: ISO C 9x
1115 cexp NEW: ISO C 9x
1116 cexpf NEW: ISO C 9x
1117 cexpl NEW: ISO C 9x
1118 cimag NEW: ISO C 9x
1119 cimagf NEW: ISO C 9x
1120 cimagl NEW: ISO C 9x
1121 clearerr_locked REMOVED
1122 clntunix_create NEW: sunrpc ext
1123 clog NEW: ISO C 9x
1124 clog10 NEW: ISO C 9x
1125 clog10f NEW: ISO C 9x
1126 clog10l NEW: ISO C 9x
1127 clogf NEW: ISO C 9x
1128 clogl NEW: ISO C 9x
1129 conj NEW: ISO C 9x
1130 conjf NEW: ISO C 9x
1131 conjl NEW: ISO C 9x
1132 cpow NEW: ISO C 9x
1133 cpowf NEW: ISO C 9x
1134 cpowl NEW: ISO C 9x
1135 cproj NEW: ISO C 9x
1136 cprojf NEW: ISO C 9x
1137 cprojl NEW: ISO C 9x
1138 creal NEW: ISO C 9x
1139 crealf NEW: ISO C 9x
1140 creall NEW: ISO C 9x
1141 creat64 NEW: LFS
1142 csin NEW: ISO C 9x
1143 csinf NEW: ISO C 9x
1144 csinh NEW: ISO C 9x
1145 csinhf NEW: ISO C 9x
1146 csinhl NEW: ISO C 9x
1147 csinl NEW: ISO C 9x
1148 csqrt NEW: ISO C 9x
1149 csqrtf NEW: ISO C 9x
1150 csqrtl NEW: ISO C 9x
1151 ctan NEW: ISO C 9x
1152 ctanf NEW: ISO C 9x
1153 ctanh NEW: ISO C 9x
1154 ctanhf NEW: ISO C 9x
1155 ctanhl NEW: ISO C 9x
1156 ctanl NEW: ISO C 9x
1157 des_setparity NEW: Secure RPC
1158 ecb_crypt NEW: Secure RPC
1159 endutxent NEW: Unix98
1160 exp10 NEW: ISO C 9x
1161 exp10f NEW: ISO C 9x
1162 exp10l NEW: ISO C 9x
1163 exp2 NEW: ISO C 9x
1164 exp2f NEW: ISO C 9x
1165 exp2l NEW: ISO C 9x
1166 fattach NEW: STREAMS
1167 fdetach NEW: STREAMS
1168 fdim NEW: ISO C 9x
1169 fdimf NEW: ISO C 9x
1170 fdiml NEW: ISO C 9x
1171 feclearexcept NEW: ISO C 9x
1172 fegetenv NEW: ISO C 9x
1173 fegetexceptflag NEW: ISO C 9x
1174 fegetround NEW: ISO C 9x
1175 feholdexcept NEW: ISO C 9x
1176 feof_locked REMOVED
1177 feraiseexcept NEW: ISO C 9x
1178 ferror_locked REMOVED
1179 fesetenv NEW: ISO C 9x
1180 fesetexceptflag NEW: ISO C 9x
1181 fesetround NEW: ISO C 9x
1182 fetestexcept NEW: ISO C 9x
1183 feupdateenv NEW: ISO C 9x
1184 fflush_locked REMOVED
1185 ffsl NEW: GNU ext.
1186 ffsll NEW: GNU ext.
1187 fgetpos64 NEW: LFS
1188 fgets_unlocked NEW: GNU ext.
1189 fileno_locked REMOVED
1190 fma NEW: ISO C 9x
1191 fmaf NEW: ISO C 9x
1192 fmal NEW: ISO C 9x
1193 fmax NEW: ISO C 9x
1194 fmaxf NEW: ISO C 9x
1195 fmaxl NEW: ISO C 9x
1196 fmin NEW: ISO C 9x
1197 fminf NEW: ISO C 9x
1198 fminl NEW: ISO C 9x
1199 fmtmsg NEW: Unix98
1200 fopen64 NEW: LFS
1201 fputc_locked REMOVED
1202 fputs_unlocked NEW: GNU ext.
1203 fread_unlocked NEW: GNU ext.
1204 freopen64 NEW: LFS
1205 fseeko NEW: Unix98
1206 fsetpos64 NEW: LFS
1207 fstatfs64 NEW: LFS
1208 fstatvfs NEW: Unix98
1209 fstatvfs64 NEW: LFS
1210 ftello NEW: Unix98
1211 ftello64 NEW: LFS
1212 ftruncate64 NEW: LFS
1213 ftw64 NEW: LFS
1214 fwrite_unlocked NEW: GNU ext.
1215 gai_strerror NEW: IPv6
1216 gamma_r REMOVED
1217 gammaf_r REMOVED
1218 gammal_r REMOVED
1219 getchar_locked REMOVED
1220 getdate NEW: Unix98
1221 getdate_err NEW: Unix98
1222 getdate_r NEW: GNU ext.
1223 getmsg NEW: STREAMS
1224 getnameinfo NEW: IPv6
1225 getnetname NEW: Secure RPC
1226 getpmsg NEW: STREAMS
1227 getpt NEW: Unix98 PTY
1228 getrlimit64 NEW: LFS
1229 getutxent NEW: Unix98
1230 getutxid NEW: Unix98
1231 getutxline NEW: Unix98
1232 glob64 NEW: GNU ext.
1233 globfree64 NEW: GNU ext.
1234 gnu_get_libc_release NEW: GNU ext.
1235 gnu_get_libc_version NEW: GNU ext.
1236 grantpt NEW: Unix98 PTY
1237 host2netname NEW: Secure RPC
1238 iconv NEW: iconv
1239 iconv_close NEW: iconv
1240 iconv_open NEW: iconv
1241 if_freenameindex NEW: IPv6
1242 if_indextoname NEW: IPv6
1243 if_nameindex NEW: IPv6
1244 if_nametoindex NEW: IPv6
1245 in6addr_any NEW: IPv6
1246 in6addr_loopback NEW: IPv6
1247 inet6_isipv4mapped NEW: IPv6
1248 isastream NEW: STREAMS
1249 iswblank NEW: GNU ext.
1250 key_decryptsession NEW: Secure RPC
1251 key_decryptsession_pk NEW: Secure RPC
1252 key_encryptsession NEW: Secure RPC
1253 key_encryptsession_pk NEW: Secure RPC
1254 key_gendes NEW: Secure RPC
1255 key_get_conv NEW: Secure RPC
1256 key_secretkey_is_set NEW: Secure RPC
1257 key_setnet NEW: Secure RPC
1258 key_setsecret NEW: Secure RPC
1259 llrint NEW: ISO C 9x
1260 llrintf NEW: ISO C 9x
1261 llrintl NEW: ISO C 9x
1262 llround NEW: ISO C 9x
1263 llroundf NEW: ISO C 9x
1264 llroundl NEW: ISO C 9x
1265 log2 NEW: ISO C 9x
1266 log2f NEW: ISO C 9x
1267 log2l NEW: ISO C 9x
1268 lrint NEW: ISO C 9x
1269 lrintf NEW: ISO C 9x
1270 lrintl NEW: ISO C 9x
1271 lround NEW: ISO C 9x
1272 lroundf NEW: ISO C 9x
1273 lroundl NEW: ISO C 9x
1274 lseek64 NEW: LFS
1275 makecontext NEW: Unix98
1276 mempcpy NEW: GNU ext.
1277 mmap64 NEW: LFS
1278 moncontrol REMOVED
1279 modify_ldt NEW: kernel
1280 nan NEW: ISO C 9x
1281 nanf NEW: ISO C 9x
1282 nanl NEW: ISO C 9x
1283 nearbyint NEW: ISO C 9x
1284 nearbyintf NEW: ISO C 9x
1285 nearbyintl NEW: ISO C 9x
1286 netname2host NEW: Secure RPC
1287 netname2user NEW: Secure RPC
1288 nexttoward NEW: ISO C 9x
1289 nexttowardf NEW: ISO C 9x
1290 nexttowardl NEW: ISO C 9x
1291 nftw NEW: Unix98
1292 nftw64 NEW: LFS
1293 open64 NEW: LFS
1294 passwd2des NEW: Secure RPC
1295 pow10 NEW: GNU ext.
1296 pow10f NEW: GNU ext.
1297 pow10l NEW: GNU ext.
1298 pread NEW: Unix98
1299 pread64 NEW: LFS
1300 printf_size NEW: GNU ext.
1301 printf_size_info NEW: GNU ext.
1302 profil_counter REMOVED
1303 pthread_mutexattr_getkind_np REPLACED
1304 pthread_mutexattr_setkind_np REPLACED
1305 ptsname NEW: Unix98 PTY
1306 ptsname_r NEW: Unix98 PTY
1307 putc_locked REMOVED
1308 putchar_locked REMOVED
1309 putgrent NEW: GNU ext.
1310 putmsg NEW: STREAMS
1311 putpmsg NEW: STREAMS
1312 pututxline NEW: Unix98
1313 pwrite NEW: Unix98
1314 pwrite64 NEW: LFS
1315 readdir64 NEW: LFS
1316 readdir64_r NEW: LFS
1317 remquo NEW: ISO C 9x
1318 remquof NEW: ISO C 9x
1319 remquol NEW: ISO C 9x
1320 round NEW: ISO C 9x
1321 roundf NEW: ISO C 9x
1322 roundl NEW: ISO C 9x
1323 rtime NEW: GNU ext.
1324 scalbln NEW: ISO C 9x
1325 scalblnf NEW: ISO C 9x
1326 scalblnl NEW: ISO C 9x
1327 scandir64 NEW: LFS
1328 sendfile NEW: kernel
1329 setcontext NEW: Unix98
1330 setrlimit64 NEW: LFS
1331 setutxent NEW: Unix98
1332 sighold NEW: Unix98
1333 sigignore NEW: Unix98
1334 sigqueue NEW: POSIX.1b
1335 sigrelse NEW: Unix98
1336 sigset NEW: POSIX.1b
1337 sigtimedwait NEW: POSIX.1b
1338 sigwaitinfo NEW: POSIX.1b
1339 sincos NEW: GNU ext.
1340 sincosf NEW: GNU ext.
1341 sincosl NEW: GNU ext.
1342 statfs64 NEW: LFS
1343 statvfs NEW: Unix98
1344 statvfs64 NEW: LFS
1345 strcasestr NEW: GNU ext.
1346 strtoimax NEW: ISO C 9x
1347 strtoumax NEW: ISO C 9x
1348 strverscmp NEW: GNU ext.
1349 svcauthdes_stats NEW: Secure RPC
1350 svcunix_create NEW: sunrpc etx
1351 svcunixfd_create NEW: sunrpc ext
1352 swapcontext NEW: Unix98
1353 tcgetsid NEW: Unix98 PTY
1354 tdestroy NEW: GNU ext.
1355 tgamma NEW: ISO C 9x
1356 tgammaf NEW: ISO C 9x
1357 tgammal NEW: ISO C 9x
1358 tmpfile64 NEW: LFS
1359 trunc NEW: ISO C 9x
1360 truncate64 NEW: LFS
1361 truncf NEW: ISO C 9x
1362 truncl NEW: ISO C 9x
1363 umount2 NEW: kernel
1364 unlockpt NEW: Unix98 PTY
1365 updwtmpx NEW: Unix98
1366 user2netname NEW: Secure RPC
1367 utmpxname NEW: Unix98
1368 versionsort NEW: GNU ext.
1369 versionsort64 NEW: GNU ext.
1370 waitid NEW: Unix98
1371 wcscasecmp NEW: GNU ext.
1372 wcsncasecmp NEW: GNU ext.
1373 wcsnlen NEW: GNU ext.
1374 wcstoimax NEW: ISO C 9x
1375 wcstoll NEW: ISO C 9x
1376 wcstoull NEW: ISO C 9x
1377 wcstoumax NEW: ISO C 9x
1378 wcswcs NEW: Unix98
1379 wordexp NEW: POSIX.2
1380 wordfree NEW: POSIX.2
1381 write_profiling REMOVED
1382 xdecrypt NEW: Secure RPC
1383 xdr_authdes_cred NEW: Secure RPC
1384 xdr_authdes_verf NEW: Secure RPC
1385 xdr_cryptkeyarg NEW: Secure RPC
1386 xdr_cryptkeyarg2 NEW: Secure RPC
1387 xdr_cryptkeyres NEW: Secure RPC
1388 xdr_getcredres NEW: Secure RPC
1389 xdr_key_netstarg NEW: Secure RPC
1390 xdr_key_netstres NEW: Secure RPC
1391 xdr_keybuf NEW: Secure RPC
1392 xdr_keystatus NEW: Secure RPC
1393 xdr_netnamestr NEW: Secure RPC
1394 xdr_sizeof NEW: Secure RPC
1395 xdr_unixcred NEW: sunrpc ext
1396 xencrypt NEW: Secure RPC
1397 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1398 \f
1399 Version 2.0.6
1401 * more bug fixes
1403 \f
1404 Version 2.0.5
1406 * more bug fixes
1408 * inet_ntoa is thread-safe
1410 * updwtmp is moved from libutil to libc
1412 * rewrite of cbrt function
1414 * update of timezone data
1415 \f
1416 Version 2.0.4
1418 * more bug fixes
1419 \f
1420 Version 2.0.3
1422 * more bug fixes
1423 \f
1424 Version 2.0.2
1426 * more bug fixes
1428 * add atoll function
1430 * fix complex problems in Berkeley DB code
1432 * fix math functions
1433 \f
1434 Version 2.0.1
1436 * fixed lots of header problems (especially Linux/GNU specific)
1438 * dynamic loader preserves all registers
1440 * Roland McGrath provided support for handling of auxiliary objects in
1441 the ELF dynamic loader.
1443 * support for parallel builds is improved
1444 \f
1445 Version 2.0
1447 * GNU extensions are no longer declared by default. To enable them you
1448 must define the macro `_GNU_SOURCE' in your program or compile with
1449 `-D_GNU_SOURCE'.
1451 * The library has changed from using GNU ld symbol aliases to using weak
1452 symbols where available. The ELF object file format supports weak
1453 symbols; GNU ld also supports weak symbols in the a.out format. (There
1454 is also now support for other GNU ld extensions in ELF. Use the
1455 `--with-elf' option to configure to indicate you have ELF, and
1456 `--with-gnu-ld' if using GNU ld.) This change resulted in the deletion
1457 of many files which contained only symbol aliases, reducing the size of
1458 the source and the compiled library; many other files were renamed to
1459 less cryptic names previously occupied by the symbol alias files.
1460 There is a new header file <elf.h> for programs which operate on
1461 files in the ELF format.
1463 * Converted to Autoconf version 2, so `configure' has more options.
1464 Run `configure --help' to see the details.
1466 * The library can now be configured to build profiling, highly-optimized
1467 (but undebuggable), and/or shared libraries (ELF with GNU ld only). The
1468 `--enable-profile', `--enable-omitfp', and `--enable-shared' options to
1469 `configure' enable building these extra libraries. The shared library is
1470 built by default when using both ELF and GNU ld. When shared libraries
1471 are enabled, the new library `-ldl' is available for arbitrary run-time
1472 loading of shared objects; its interface is defined in <dlfcn.h>. The
1473 new header file <link.h> gives access to the internals of the run-time
1474 dynamic linker, `ld.so'. The shell script `ldd' is similar to the
1475 application of same name on other systems and it provides information
1476 about dynamically linked binaries.
1478 * The C library now provides the run-time support code for profiling
1479 executables compiled with `-pg'. Programs can control the profiling code
1480 through the interface in <sys/gmon.h>. The `gmon.out' files written by
1481 the GNU C library can be read only by GNU `gprof' (from GNU binutils);
1482 the support for this file format was contributed by David Mosberger-Tang.
1484 * The math code has been replaced with a math library based on fdlibm from
1485 Sun, and modified by JT Conklin and Ulrich Drepper with i387 support, by
1486 Ian Taylor with `float' functions and by Ulrich Drepper with `long double'
1487 functions. The math functions now reside in a separate library, so
1488 programs using them will need to use `-lm' their linking commands.
1490 * John C. Bowman contributed optimized ix87 assembler inline functions.
1492 * Ulrich Drepper has contributed support for an `/etc/nsswitch.conf'
1493 mechanism similar to that found in Solaris 2. This is now used for the
1494 group, passwd, hosts, networks, services, protocols, rpc, ethers,
1495 shadow, netgroup, publickey, and alias databases. The `nsswitch.conf'
1496 file controls what services are used for each individual database. This
1497 works by loading shared libraries with names specified in `nsswitch.conf',
1498 so service modules can be changed or added at any time without even
1499 relinking any program. Currently there are the file, db, and NIS based
1500 NSS services available.
1502 * The new functions `strtoq' and `strtouq' parse integer values from
1503 strings, like `strtol' and `strtoul', but they return `long long int' and
1504 `unsigned long long int' values, respectively (64-bit quantities).
1506 * The new functions `strtof' and `strtold' parse floating-point values from
1507 strings, like `strtod', but they return `float' and `long double' values,
1508 respectively (on some machines `double' and `long double' are the same).
1510 * Ulrich Drepper has contributed new implementations of the floating-point
1511 printing and reading code used in the `printf' family of functions and
1512 `strtod', `strtof', and `strtold'. These new functions are perfectly
1513 accurate, and much faster than the old ones.
1515 * The implementation of the POSIX locale model was completely rewritten by
1516 Ulrich Drepper. This includes the new programs `localedef' and `locale'
1517 to compile the POSIX locale definition.
1519 * The former dummy implementations of the strcoll and strxfrm function are
1520 now replaced by fully functional code contributed by Ulrich Drepper. The
1521 collation information comes from the POSIX locale definitions.
1523 * The new header <langinfo.h> defines an interface for accessing
1524 various locale-dependent data (using the locale chosen with `setlocale').
1526 * Ulrich Drepper has contributed a new suite of functions for operation on
1527 wide-character and multibyte-character strings, in <wchar.h>;
1528 and classification and case conversion of wide characters, in <wctype.h>.
1529 These new functions are conforming to the ISO C, Amendement 1 specification.
1531 * There is now a second implementation of the standard I/O library available.
1532 It comes from GNU libg++ as was written by Per Bothner, heavily modified
1533 by Hongjiu Lu and made thread safe by Ulrich Drepper.
1535 * You can now use positional parameter specifications in format strings
1536 for the `printf' and `scanf' families of functions. For example,
1537 `printf ("Number %2$d, Mr %1$s\n", "Jones", 6);'' prints
1538 ``Number 6, Mr Jones''. This is mainly useful when providing different
1539 format strings for different languages, whose grammars may dictate
1540 different orderings of the values being printed. To support this
1541 feature, the interface for `register_printf_handler' has changed; see
1542 the header file <printf.h> for details.
1544 * The `printf' and `scanf' families of functions now understand a new
1545 formatting flag for numeric conversions: the ' flag (e.g. %'d or %'f) says
1546 to group numbers as indicated by the locale; for `scanf' and friends, this
1547 says to accept as valid only a number with all the proper grouping
1548 separators in the right places. In the default "C" locale, numbers are
1549 not grouped; but locales for specific countries will define the usual
1550 conventions (i.e. separate thousands with `,' in the US locale).
1552 * The pgrp functions have been regularized, slightly incompatibly but much
1553 less confusingly. The core functions are now `getpgid' and `setpgid',
1554 which take arguments for the PID to operate on; the POSIX.1 `getpgrp' (no
1555 argument) and BSD `setpgrp' (identical to `setpgid') functions are
1556 provided for compatibility. There is no longer an incompatible `getpgrp'
1557 with an argument declared under _BSD_SOURCE; no BSD code uses it.
1559 * The new header file <fts.h> and suite of functions simplify programs that
1560 operate on directory trees. This code comes from 4.4 BSD.
1562 * The resolver code has been updated from the BIND 4.9.5-P1 release.
1563 Parts of the code were heavily modified by Ulrich Drepper to fit in the
1564 NSS scheme used in glibc.
1566 * There is a new malloc debugging hook `__memalign_hook'.
1568 * There are new typedefs `ushort' for `unsigned short int' and `uint' for
1569 `unsigned int' in <sys/types.h>. These are for compatibility only and
1570 their use is discouraged.
1572 * The `-lmcheck' library to enable standard malloc debugging hooks is now
1573 done differently, so that it works even without GNU ld.
1575 * New function `euidaccess' checks allowed access to a file like `access',
1576 but using the effective IDs instead of the real IDs.
1578 * The time zone data files have been updated for the latest and greatest
1579 local time conventions of the countries of the world.
1581 * The new function `dirfd' extracts the file descriptor used by a DIR stream;
1582 see <dirent.h>.
1584 * The new functions `ecvt', `fcvt', and `gcvt' provide an obsolete interface
1585 for formatting floating-point numbers. They are provided only for
1586 compatibility; new programs should use `sprintf' instead. There are
1587 also equivalent function for the `long double' floating-point type and
1588 all functions also exist in a reentrant form.
1590 * The new auxiliary library `-lutil' from 4.4 BSD contains various
1591 functions for maintaining the login-record files (primarily of use to
1592 system programs such as `login'), and convenient functions for
1593 allocating and initializing a pseudo-terminal (pty) device.
1595 * Ulrich Drepper has contributed new support for System V style
1596 shared memory and IPC on systems that support it.
1598 * Ulrich Drepper has contributed several miscellaneous new functions found
1599 in System V: The `hsearch' family of functions provide an effective
1600 implementation of hash tables; `a64l' and `l64a' provide a very simple
1601 binary to ASCII mapping; `drand48' and friends provide a 48-bit random
1602 number generator.
1604 * Ulrich Drepper has contributed new reentrant counterparts for the
1605 `random' and `hsearch' families of functions; `random_r', `hsearch_r', etc.
1607 * Ulrich Drepper has contributed new, highly-optimized versions of several
1608 string functions for the i486/Pentium family of processors.
1610 * Ulrich Drepper has updated the Linux-specific code, based largely
1611 on work done in Hongjiu Lu's version of GNU libc for Linux.
1612 The GNU library now supports Linux versions 2.0.10 and later,
1613 using the ELF object file format (i[3456]86-*-linux).
1615 * Andreas Schwab has ported the C library to Linux/m68k (m68k-*-linux).
1617 * David Mosberger-Tang and Richard Henderson have ported the C library
1618 to Linux/Alpha (alpha-*-linux). Richard Henderson contributed the
1619 dynamic linking support for ELF/Alpha.
1621 * Richard Henderson contributed several Alpha optimized assembler function
1622 for arithmetic and string handling.
1624 * Ulrich Drepper has contributed a new set of message catalog functions to
1625 support multiple languages using the <libintl.h> interface, for use with
1626 his new package GNU gettext. Translation volunteers have contributed
1627 catalogs of the library's messages in Spanish, German, and Korean.
1629 * For compatibility with XPG4, Ulrich Drepper has contributed the `gencat'
1630 program and the `catgets' function for reading the catalog files it
1631 creates. (The <libintl.h> interface is preferred; we include the
1632 <nl_types.h> interface using `catgets' only for source compatibility with
1633 programs already written to use it.)
1635 * New header file <values.h> gives SVID-compatible names for <limits.h>
1636 constants.
1638 * Various new macros, declarations, and small header files for compatibility
1639 with 4.4 BSD.
1641 * New function `group_member' is a convenient way to check if a process has
1642 a given effective group ID.
1644 * When using GCC 2.7 and later, the socket functions are now declared in a
1645 special way so that passing an argument of type `struct sockaddr_in *',
1646 `struct sockaddr_ns *', or `struct sockaddr_un *' instead of the generic
1647 `struct sockaddr *' type, does not generate a type-clash warning.
1649 * New function `error' declared in header file <error.h> is a convenient
1650 function for printing error messages and optionally exiting; this is the
1651 canonical function used in GNU programs. The new functions `err', `warn',
1652 and friends in header file <err.h> are the canonical 4.4 BSD interface for
1653 doing the same thing.
1655 * The <glob.h> interface has several new flags from 4.4 BSD that extend the
1656 POSIX.2 `glob' function to do ~ and {...} expansion.
1658 * New function `unsetenv' complements `setenv' for compatibility with 4.4 BSD.
1659 `clearenv' which is used in POSIX.9 is also available.
1661 * New function `getsid' returns session ID number on systems that support it.
1663 * We have incorporated the 4.4 BSD `db' library (version 1.85). New header
1664 files <db.h> and <mpool.h> provide a rich set of functions for several
1665 types of simple databases stored in memory and in files, and <ndbm.h> is
1666 an old `ndbm'-compatible interface using the `db' functions. Link with
1667 `-ldb' to get these functions.
1669 * New macro `strdupa' copies a string like `strdup', but uses local stack
1670 space from `alloca' instead of dynamic heap space from `malloc'.
1672 * New function `strnlen' is like `strlen' but searches only a given maximum
1673 number of characters for the null terminator. `stpncpy', `strndup' and
1674 `strndupa' are similar variants for the `stpcpy', `strdup' and `strdupa'
1675 function.
1677 * New function `statfs' in header <sys/statfs.h>.
1679 * The new <argz.h> and <envz.h> interfaces contributed by Miles Bader
1680 provide convenient functions for operating on blocks of null-terminated
1681 strings.
1683 * A new suite of functions in <utmp.h> handle all the details of reading
1684 and writing the utmp file.
1686 * An implementation of the NIS/YP(tm) based NSS service was contributed by
1687 Thorsten Kukuk.
1689 * Paul Eggert and Ulrich Drepper modified the `strftime' function to be
1690 completely POSIX compliant and also implemented the extended functionality
1691 to handle alternate digit representation and alternate era date formats.
1693 * Ulrich Drepper provided an implementation of the `strptime' function
1694 defined in XPG4.2 which transforms a string into a `struct tm' value.
1696 * Paul Eggert provided the tzselect shell script as part of the timezone
1697 code. The shell script makes it easy to select the correct timezone
1698 specification.
1700 * The implementation of the malloc family of functions is completely replaced
1701 by a new implementation by Doug Lea with many improvements by Wolfram Gloger.
1702 The implementation uses the mmap function (if available) and it is
1703 optimized for the use in multi threaded programs.
1705 * Ulrich Drepper contributed a MD5 "encryption" for the crypt family of
1706 functions. This new functionality is usable by specifying a special
1707 salt string and it is compatible with implementation on *BSD systems.
1709 * Lots of functions from the XPG4.2 standard were added by Ulrich Drepper:
1710 `getsubopt' to handle second level command line options, `bsd_signal'
1711 to access BSD style `signal' functionality, the obsolete `regexp' style
1712 expression matcher.
1714 * the `lchown' function is available on system which support this
1715 functionality.
1717 * The implementation of the shadow password handling function was contributed
1718 by Ulrich Drepper.
1720 * David Mosberger-Tang changed the SunRPC implementation to be 64bit safe.
1722 * POSIX.1g support was added. The <sys/select.h> header is available,
1723 `isfdtype' and `pselect' are implemented. Craig Metz contributed an
1724 implementation of `getaddrinfo'.
1725 \f
1726 Version 1.09
1728 * For cross-compilation you should now set `BUILD_CC' instead of `HOST_CC'.
1730 * New header file <fstab.h> and new functions `getfsspec', `getfsent' and
1731 friends, for parsing /etc/fstab. This code comes from 4.4 BSD.
1733 * The new function `daemon' from 4.4 BSD is useful for server programs that
1734 want to put themselves in the background.
1736 * Joel Sherrill has contributed support for several standalone boards that
1737 run without an operating system.
1739 * `printf', `scanf' and friends now accept a `q' type modifier for long
1740 long int as well as `ll'. Formats using these might be `%qu' or `%lld'.
1742 * All of the code taken from BSD (notably most of the math and networking
1743 routines) has been updated from the BSD 4.4-Lite release.
1745 * The resolver code has been updated from the BIND-4.9.3-BETA9 release.
1747 * The new functions `getdomainname' and `setdomainname' fetch or change the
1748 YP/NIS domain name. These are system calls which exist on systems which
1749 have YP (aka NIS).
1751 * The time zone data files have been updated for the latest international
1752 conventions.
1754 * The SunRPC programs `portmap' and `rpcinfo' are now installed in
1755 $(sbindir) (usually /usr/local/sbin) instead of $(bindir).
1756 \f
1757 Version 1.08
1759 * The C library now includes support for Sun RPC, from Sun's free
1760 RPCSRC-4.0 distribution. The `portmap', `rpcinfo', and `rpcgen' programs
1761 are included. (There is still no support for YP.)
1763 * Tom Quinn has contributed a port of the C library to SGI machines running
1764 Irix 4 (mips-sgi-irix4).
1766 * The new `lockf' function is a simplified interface to the locking
1767 facilities of `fcntl', included for compatibility.
1769 * New time functions `timegm', `timelocal', and `dysize' for compatibility.
1771 * New header file <sys/timeb.h> and new function `ftime' for compatibility.
1773 * New header files <poll.h> and <sys/poll.h> and new function `poll' for
1774 compatibility.
1776 * The error message printed by `assert' for a failed assertion now includes
1777 the name of the program (if using GNU ld) and the name of the calling
1778 function (with versions of GCC that support this).
1780 * The `psignal' function is now declared in <signal.h>, not <stdio.h>.
1782 * The library now includes the <sys/mman.h> header file and memory
1783 management functions `mmap', `munmap', `mprotect', `msync', and
1784 `madvise', on systems that support those facilities.
1786 * The interface for `mcheck' has changed slightly: the function called to
1787 abort the program when an allocation inconsistency is detected now takes
1788 an argument that indicates the type of failure. The new function
1789 `mprobe' lets you request a consistency check for a particular block at
1790 any time (checks are normally done only when you call `free' or `realloc'
1791 on a block).
1793 * It is now possible to easily cross-compile the C library, building on one
1794 system a library to run on another machine and/or operating system. All
1795 you need to do is set the variable `HOST_CC' in `configparms' to the
1796 native compiler for programs to run on the machine you are building on (a
1797 few generator programs are used on Unix systems); set `CC' to the
1798 cross-compiler.
1800 * The new function `fexecve' (only implemented on the GNU system) executes
1801 a program file given a file descriptor already open on the file.
1802 \f
1803 Version 1.07
1805 * Brendan Kehoe has contributed most of a port to the DEC Alpha
1806 running OSF/1 (alpha-dec-osf1). He says it is 75% complete.
1808 * You can set the variable `libprefix' in `configparms' to specify a prefix
1809 to be prepended to installed library files; this makes it easy to install
1810 the GNU C library to be linked as `-lgnuc' or whatever.
1812 * The new `stpncpy' is a cross between `stpcpy' and `strncpy': It
1813 copies a limited number of characters from a string, and returns the
1814 address of the last character written.
1816 * You no longer need to check for whether the installed `stddef.h' is
1817 compatible with the GNU C library. configure now checks for you.
1819 * You can now define a per-stream `fileno' function to convert the
1820 stream's cookie into an integral file descriptor.
1822 * ``malloc (0)'' no longer returns a null pointer. Instead, it
1823 allocates zero bytes of storage, and returns a unique pointer which
1824 you can pass to `realloc' or `free'. The behavior is undefined if
1825 you dereference this pointer.
1827 * The C library now runs on Sony NEWS m68k machines running either
1828 NewsOS 3 or NewsOS 4.
1830 * The new `syscall' function is a system-dependent primitive function
1831 for invoking system calls. It has the canonical behavior on Unix
1832 systems, including unreliable return values for some calls (such as
1833 `pipe', `fork' and `getppid').
1835 * The error code `EWOULDBLOCK' is now obsolete; it is always defined
1836 to `EAGAIN', which is the preferred name. On systems whose kernels
1837 use two distinct codes, the C library now translates EWOULDBLOCK to
1838 EAGAIN in every system call function.
1839 \f
1840 Version 1.06
1842 * The GNU C Library Reference Manual is now distributed with the library.
1843 `make dvi' will produce a DVI file of the printed manual.
1844 `make info' will produce Info files that you can read on line using C-h i
1845 in Emacs or the `info' program.
1846 Please send comments on the manual to bug-glibc-manual@gnu.org.
1848 * The library now supports SVR4 on i386s (i386-unknown-sysv4).
1850 * Brendan Kehoe has contributed a port to Sun SPARCs running Solaris 2.
1852 * Jason Merrill has contributed a port to the Sequent Symmetry running
1853 Dynix version 3 (i386-sequent-dynix).
1855 * The library has been ported to i386s running SCO 3.2.4 (also known as SCO
1856 ODT 2.0; i386-unknown-sco3.2.4) or SCO 3.2 (i386-unknown-sco3.2).
1858 * New function `memory_warnings' lets you arrange to get warnings when
1859 malloc is running out of memory to allocate, like Emacs gives you.
1861 * The C library now contains the relocating allocator used in Emacs 19 for
1862 its editing buffers. This allocator (ralloc) minimizes allocation
1863 overhead and fragmentation by moving allocated regions around whenever it
1864 needs to. You always refer to a ralloc'd region with a "handle" (a
1865 pointer to a pointer--an object of type `void **').
1867 * There is a new `printf' format: `%m' gives you the string corresponding
1868 to the error code in `errno'.
1870 * In `scanf' formats, you can now use `%as' or `%a[' to do the normal `%s'
1871 or `%[' conversion, but instead of filling in a fixed-sized buffer you
1872 pass, the `a' modifier says to fill in a `char **' you pass with a
1873 malloc'd string.
1875 * The `fnmatch' function supports the new flag bits `FNM_LEADING_DIR' and
1876 `FNM_CASEFOLD'. `FNM_LEADING_DIR' lets a pattern like `foo*' match a
1877 name like `foo/bar'. `FNM_CASEFOLD' says to ignore case in matching.
1879 * `mkstemp' is a traditional Unix function to atomically create and open a
1880 uniquely-named temporary file.
1881 \f
1882 Version 1.05
1884 * The standard location for the file that says what the local timezone is
1885 has changed again. It is now `/usr/local/etc/localtime' (or more
1886 precisely, `${prefix}/etc/localtime') rather than `/etc/localtime'.
1888 * The distribution no longer contains any files with names longer than 14
1889 characters.
1891 * `struct ttyent' has two new flag bits: TTY_TRUSTED and TTY_CONSOLE.
1892 These are set by the new `trusted' and `console' keywords in `/etc/ttys'.
1894 * New functions `ttyslot' and `syslog' from 4.4 BSD.
1895 \f
1896 Version 1.04
1898 * The configuration process has changed quite a bit. The `configure'
1899 script is now used just like the configuration scripts for other GNU
1900 packages. The `sysdeps' directory hierarchy is much rearranged.
1901 The file `INSTALL' explains the new scheme in detail.
1903 * The header files no longer need to be processed into ANSI C and
1904 traditional C versions. There is just one set of files to install, and
1905 it will work with ANSI or old C compilers (including `gcc -traditional').
1907 * Brendan Kehoe and Ian Lance Taylor have ported the library to the
1908 MIPS DECStation running Ultrix 4.
1910 * The Sun 4 startup code (crt0) can now properly load SunOS 4 shared libraries.
1911 Tom Quinn contributed the initial code. The GNU C library can NOT yet be
1912 made itself into a shared library.
1914 * Yet further improved support for the i386, running 4.3 BSD-like systems
1915 (such as Mach 3 with the Unix single-server), or System V.
1917 * New function `strncasecmp' to do case-insensitive string comparison
1918 with limited length.
1920 * New function `strsep' is a reentrant alternative to `strtok'.
1922 * New functions `scandir' and `alphasort' for searching directories.
1924 * New function `setenv' is a better interface to `putenv'.
1926 * Ian Lance Taylor has contributed an implementation of the SVID `ftw'
1927 function for traversing a directory tree.
1929 * The GNU obstack package is now also part of the C library.
1930 The new function `open_obstack_stream' creates a stdio stream that
1931 writes onto an obstack; `obstack_printf' and `obstack_vprintf' do
1932 formatted output directly to an obstack.
1934 * Miscellaneous new functions: reboot, nice, sigaltstack (4.4 BSD only),
1935 cfmakeraw, getusershell, getpass, swab, getttyent, seteuid, setegid.
1937 * `FNM_FILE_NAME' is another name for `FNM_PATHNAME', used with `fnmatch'.
1939 * The new functions `strfry' and `memfrob' do mysterious and wonderful
1940 things to your strings.
1942 * There are some new test programs: test-fseek, testmb, and testrand.
1944 * Some work has been done to begin porting the library to 4.4 BSD and Linux.
1945 These ports are not finished, but are a good starting place for really
1946 supporting those systems.
1948 * `/etc/localtime' is now the standard location for the file that says what
1949 the local timezone is, rather than `/usr/local/lib/zoneinfo/localtime'.
1950 This follows the general principle that `/etc' is the place for all local
1951 configuration files.
1953 * The C library header files now use `extern "C"' when used by the C++
1954 compiler, so the C library should now work with C++ code.
1956 * The header file <bstring.h> is gone. <string.h> now declares bcopy,
1957 bcmp, bzero, and ffs. (Update: nowadays these functions are declared
1958 in <strings.h>.)
1960 * Mike Haertel (of GNU e?grep and malloc fame) has written a new sorting
1961 function which uses the `merge sort' algorithm, and is said to be
1962 significantly faster than the old GNU `qsort' function. Merge sort is
1963 now the standard `qsort' function. The new algorithm can require a lot
1964 of temporary storage; so, the old sorting function is called when the
1965 required storage is not available.
1967 * The C library now includes Michael Glad's Ultra Fast Crypt, which
1968 provides the Unix `crypt' function, plus some other entry points.
1970 * The code and header files taken from 4.4 BSD have been updated with the
1971 latest files released from Berkeley.
1972 \f
1973 ----------------------------------------------------------------------
1974 Copyright information:
1976 Copyright (C) 1992-2009, 2010, 2011 Free Software Foundation, Inc.
1978 Permission is granted to anyone to make or distribute verbatim copies
1979 of this document as received, in any medium, provided that the
1980 copyright notice and this permission notice are preserved,
1981 thus giving the recipient permission to redistribute in turn.
1983 Permission is granted to distribute modified versions
1984 of this document, or of portions of it,
1985 under the above conditions, provided also that they
1986 carry prominent notices stating who last changed them.
1987 \f
1988 Local variables:
1989 version-control: never
1990 fill-column: 76
1991 End: