]> git.ipfire.org Git - thirdparty/glibc.git/blob - NEWS
Update GB18030 to 2005 version
[thirdparty/glibc.git] / NEWS
1 GNU C Library NEWS -- history of user-visible changes. 2011-5-17
2 Copyright (C) 1992-2009, 2010, 2011 Free Software Foundation, Inc.
3 See the end for copying conditions.
4
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
9
10 * The following bugs are resolved with this release:
11
12 386, 6420, 7101, 9730, 9732, 9809, 10138, 10149, 10157, 11257, 11258,
13 11487, 11532, 11578, 11653, 11668, 11697, 11724, 11820, 11837, 11892,
14 11895, 11901, 11945, 11947, 11952, 11987, 12052, 12083, 12158, 12178,
15 12200, 12346, 12393, 12420, 12432, 12445, 12449, 12453, 12454, 12460,
16 12469, 12489, 12509, 12510, 12511, 12518, 12527, 12541, 12545, 12551,
17 12582, 12583, 12587, 12597, 12601, 12611, 12625, 12626, 12631, 12650,
18 12653, 12655, 12660, 12681, 12685, 12711, 12713, 12714, 12717, 12723,
19 12724, 12734, 12738, 12746, 12766
20
21 * The RPC implementation in libc is obsoleted. Old programs keep working
22 but new programs cannot be linked with the routines in libc anymore.
23 Programs in need of RPC functionality must be linked against TI-RPC.
24 The TI-RPC implemtation is IPv6 enabled and there are other benefits.
25
26 Visible changes of this change include (obviously) the inability to link
27 programs using RPC functions without referencing the TI-RPC library and the
28 removal of the RPC headers from the glibc headers.
29 Implemented by Ulrich Drepper.
30
31 * New Linux interfaces: clock_adjtime, name_to_handle_at, open_by_handle_at,
32 syncfs
33
34 * New locales: os_RU, bem_ZA, en_ZA, ff_SN, sw_KE, sw_TZ, lb_LU, wae_CH,
35 yue_HK, lij_IT, mhr_RU
36
37 * New encodings: CP770, CP771, CP772, CP773, CP774
38 \f
39 Version 2.13
40
41 * The following bugs are resolved with this release:
42
43 3268, 6812, 7066, 10085, 10484, 10563, 10851, 11149, 11155, 11611, 11640,
44 11655, 11701, 11840, 11856, 11883, 11903, 11904, 11968, 11979, 12005,
45 12037, 12067, 12077, 12078, 12092, 12093, 12107, 12108, 12113, 12140,
46 12159, 12167, 12191, 12194, 12201, 12204, 12205, 12207, 12348, 12378,
47 12394, 12397
48
49 * New Linux interfaces: prlimit, prlimit64, fanotify_init, fanotify_mark
50
51 * POWER7 optimizations: memset, memcmp, strncmp
52
53 * New optimized string functions for x86-64: strnlen (SSE2),
54 strcasecmp (SSE2, SSSE3, SSE4.2), strncasecmp (SSE2, SSSE3, SSE4.2)
55 Implemented by Ulrich Drepper.
56 \f
57 Version 2.12
58
59 * The following bugs are resolved with this release:
60
61 3662, 4457, 5553, 10162, 10401, 10414, 10554, 10824, 10864, 10915, 10918,
62 10936, 10939, 10958, 10968, 10969, 10972, 10992, 11000, 11001, 11007,
63 11010, 11027, 11039, 11040, 11041, 11043, 11046, 11056, 11070, 11093,
64 11115, 11120, 11125, 11126, 11127, 11134, 11141, 11149, 11183, 11184,
65 11185, 11186, 11187, 11188, 11189, 11190, 11191, 11192, 11193, 11194,
66 11200, 11230, 11235, 11242, 11254, 11258, 11271, 11272, 11276, 11279,
67 11287, 11292, 11319, 11332, 11333, 11387, 11389, 11390, 11394, 11397,
68 11410, 11438, 11449, 11470, 11471, 11520, 11537, 11538, 11571
69
70 * New interfaces: pthread_getname_np, pthread_setname_np
71
72 * New Linux interface: recvmmsg
73
74 * STT_GNU_IFUNC implemented for Sparc by David Miller.
75
76 * The dynamic linker now recognizes supported ABI versions from the
77 EI_ABIVERSION field in the ELF header.
78 Implemented by Ulrich Drepper.
79
80 * New NIS mode selector ADJUNCT_AS_SHADOW. The passwd.adjunct.byname table
81 will not be used to fill in password fields in the passwd.byname replies.
82 Instead it is used to synthesize the shadow.byname table, should it be
83 missing. This is a useful mode in some installations involving Solaris.
84 Implemented by Ulrich Drepper.
85
86 * New locales: kok_IN, sq_MK, cv_RU
87 \f
88 Version 2.11
89
90 * The following bugs are resolved with this release:
91
92 3270, 7094, 9924, 9986, 10011, 10085, 10107, 10159, 10162, 10166, 10183,
93 10195, 10196, 10200, 10203, 10207, 10211, 10213, 10217, 10221, 10229,
94 10262, 10286, 10312, 10315, 10319, 10349, 10360, 10391, 10402, 10416,
95 10418, 10422, 10425, 10446, 10448, 10452, 10540, 10553, 10560, 10564,
96 10609, 10643, 10692, 10713, 10717, 10730, 10731, 10742, 10780, 10784,
97 10789, 10817, 10823, 10840, 10847
98
99 * New interfaces: execvpe, pthread_sigqueue, mkstemps, mkstemps64, mkostemps,
100 mkostemps64
101 Implemented by Ulrich Drepper.
102
103 * Checking version of longjmp added that fails if an uninitialized stack
104 frame would be created. Implemented by Ulrich Drepper.
105
106 * STT_GNU_IFUNC is now supported in static executables.
107 Implemented by H.J. Lu.
108
109 * STT_GNU_IFUNC implemented for PPC by Alan Modra.
110
111 * New optimized string functions for x86-64: strstr, strcasestr, memcmp,
112 strcspn, strpbrk, strspn, strcpy, stpcpy, strncpy, strcmp (SSE2, SSE4.2),
113 strncmp (SSE2, SSE4.2), strchr (SSE4.2), strrchr (SSE4.2).
114 Contributed by H.J. Lu.
115
116 strlen, rawmemchr, strcmp (SSSE3), strncmp (SSSE3).
117 Implemented by Ulrich Drepper.
118
119 * New optimized string functions for x86: strlen, strcspn, strspn, strpbrk,
120 strstr, strcasestr.
121 Contributed by H.J. Lu.
122
123 * Support for fma instruction in AVX on x86-64.
124 Implemented by H.J. Lu and Ulrich Drepper.
125
126 * AVX support in x86-64 auditing support in ld.so.
127 Implemented by H.J. Lu.
128
129 * STB_GNU_UNIQUE support added.
130 Implemented by Ulrich Drepper.
131
132 * Implement second fallback mode for optimized DNS lookup for even more
133 broken environments. If two requests from the same port are not
134 handled correctly close the socket and open a new one before sending
135 the second request. The 'single-request-reopen' option in /etc/resolv.conf
136 can be used to select this mode right away, instead of rediscovering the
137 necessity is every process again.
138 Implemented by Ulrich Drepper.
139
140 * New resolver flag RES_USE_DNSSEC to enable use of verified lookup.
141 Implemented by Adam Tkac.
142
143 * Optimized iconv conversions for S390x.
144 Implemented by Andreas Krebbel.
145
146 * Using condvars with PI mutexes is now more efficient due to kernel
147 support for requeueing to PI futexes. NPTL support added for x86-64.
148 Implemented by Ulrich Drepper.
149
150 * New locales: ps_AF, my_MM
151 \f
152 Version 2.10
153
154 * The following bugs are resolved with this release:
155
156 697, 5381, 5807, 6411, 6545, 7040, 7058, 7067, 7080, 7083, 7095, 7098,
157 9677, 9694, 9697, 9701, 9704, 9705, 9706, 9720, 9726, 9730, 9733, 9736,
158 9741, 9750, 9753, 9759, 9781, 9791, 9793, 9823, 9833, 9844, 9880, 9881,
159 9891, 9893, 9895, 9913, 9916, 9920, 9948, 9955, 9957, 9963, 9985, 10052,
160 10069, 10086, 10087, 10090, 10092, 10093, 10100, 10118, 10128
161
162 * New interfaces: preadv, preadv64, pwritev, pwritev64, malloc_info
163 Implemented by Ulrich Drepper.
164
165 * New Linux interfaces: accept4, fallocate, fallocate64.
166 Implemented by Ulrich Drepper.
167
168 * Correct declarations of string function when used in C++ code. This
169 could lead to compile errors for invalid C++ code.
170
171 * XPG7/POSIX 2008 compilation environment. Many GNU-specific functions are
172 now in POSIX.
173
174 * New POSIX 2008 interface: psiginfo
175 Implemented by Ulrich Drepper.
176
177 * New ISO C++1x interfaces: quick_exit, at_quick_exit
178 Implemented by Ulrich Drepper.
179
180 * Support for selecting between multiple function definitions at runtime
181 using STT_GNU_IFUNC symbols. Implemented by Ulrich Drepper.
182
183 * The libcrypt library can now use the hash function implementations in
184 NSS. Implemented by Ulrich Drepper.
185
186 * The malloc implementation can be compiled to be less memory efficient
187 but higher performing in multi-threaded programs.
188 Implemented by Ulrich Drepper.
189
190 * New locales: nan_TW@latin, ks_IN
191
192 * Faster strlen, strchr, strchrnul, strrchr, memchr, and rawmemchr for x86-64.
193 Implemented by Ulrich Drepper.
194
195 * Extended printf hook support. It is possible to use user-defined types
196 and extend existing format specifiers.
197 Implemented by Ulrich Drepper.
198
199 * Handling for group shadow files has been added.
200 Implemented by Ulrich Drepper.
201
202 * DNS IPv4-IPv6 parallel lookup now deals better with broken DNS
203 servers (the case, e.g., for some people using the built-in DNS
204 server in ADSL modems/routers). There is a once-per-process timeout
205 in case of a broken server. To avoid it, users can run nscd or put
206 'options single-request' in /etc/resolv.conf.
207 Implemented by Ulrich Drepper.
208 \f
209 Version 2.9
210
211 * The following bugs are resolved with this release:
212
213 3406, 5209, 5210, 5381, 5794, 5814, 5911, 6428, 6438, 6442, 6447, 6461,
214 6472, 6505, 6544, 6589, 6612, 6634, 6653, 6654, 6657, 6698, 6712, 6713,
215 6719, 6723, 6724, 6740, 6763, 6771, 6790, 6791, 6817, 6824, 6839, 6843,
216 6845, 6856, 6857, 6860, 6867, 6875, 6919, 6920, 6942, 6947, 6955, 6966,
217 6968, 6974, 6980, 6995, 7008, 7009, 7029
218
219 * Unified lookup for getaddrinfo: IPv4 and IPv6 addresses are now looked
220 up at the same time. Implemented by Ulrich Drepper.
221
222 * TLS descriptors for LD and GD on x86 and x86-64.
223 Implemented by Alexandre Oliva.
224
225 * getaddrinfo now handles DCCP and UDPlite.
226 Implemented by Ulrich Drepper.
227
228 * New fixed-size conversion macros: htobe16, htole16, be16toh, le16toh,
229 htobe32, htole32, be32toh, le32toh, htobe64, htole64, be64toh, le64toh.
230 Implemented by Ulrich Drepper.
231
232 * New implementation of memmem, strstr, and strcasestr which is O(n).
233 Implemented by Eric Blake.
234
235 * New Linux interfaces: inotify_init1, dup3, epoll_create1, pipe2
236
237 * Implement "e" option for popen to open file descriptor with the
238 close-on-exec flag set. Implemented by Ulrich Drepper.
239
240 * Implement "b" mode for fmemopen. In this mode writes writes don't
241 implicitly add a NUL byte and seeks from the end of the buffer really
242 use the buffer end, not the string length as the basis.
243 Implemented by Ulrich Drepper.
244
245 * Many functions, exported and internal, now atomically set the close-on-exec
246 flag when run on a sufficiently new kernel. Implemented by Ulrich Drepper.
247
248 * Sorting rules for some Indian languages (Kannada, Gurumukhi, Telugu,
249 Sinhala)
250 Implemented by Pravin Satpute.
251
252 * New locales: sd_IN, sd_IN@devanagari, ks_IN@devanagari, ht_HT, en_AG, nl_AW.
253 \f
254 Version 2.8
255
256 * The following bugs are resolved with this release:
257
258 2549, 3112, 4314, 4407, 4997, 5012, 5040, 5112, 5204, 5208, 5209, 5220,
259 5222, 5224, 5225, 5237, 5238, 5240, 5245, 5277, 5346, 5375, 5378, 5382,
260 5424, 5427, 5428, 5435, 5436, 5439, 5441, 5442, 5443, 5451, 5452, 5454,
261 5455, 5463, 5464, 5465, 5475, 5477, 5478, 5520, 5541, 5545, 5553, 5600,
262 5602, 5607, 5614, 5627, 5628, 5736, 5737, 5741, 5753, 5760, 5762, 5768,
263 5774, 5777, 5778, 5779, 5786, 5790, 5818, 5854, 5857, 5903, 5939, 5979,
264 5983, 5995, 5998, 6004, 6007, 6020, 6021, 6024, 6040, 6042
265
266 * New locales: bo_CN, bo_IN, shs_CA.
267
268 * New encoding: HP-ROMAN9, HP-GREEK8, HP-THAI8, HP-TURKISH8.
269
270 * Sorting rules for some Indian languages (Devanagari and Gujarati).
271 Implemented by Pravin Satpute.
272
273 * IPV6 addresses in /etc/resolv.conf can now have a scope ID
274
275 * nscd caches now all timeouts for DNS entries
276 Implemented by Ulrich Drepper.
277
278 * nscd is more efficient and wakes up less often.
279 Implemented by Ulrich Drepper.
280
281 * More checking functions: asprintf, dprintf, obstack_printf, vasprintf,
282 vdprintf, and obstack_vprintf.
283 Implemented by Jakub Jelinek.
284
285 * Faster memset for x86-64.
286 Implemented by Harsha Jagasia and H.J. Lu.
287
288 * Faster memcpy on x86.
289 Implemented by Ulrich Drepper.
290
291 * ARG_MAX is not anymore constant on Linux. Use sysconf(_SC_ARG_MAX).
292 Implemented by Ulrich Drepper.
293
294 * Faster sqrt and sqrtf implemention for some PPC variants.
295 Implemented by Stephen Munroe.
296 \f
297 Version 2.7
298
299 * The following bugs are resolved with this release:
300
301 4125, 4126, 4178, 4359, 4407, 4512, 4514, 4525, 4554, 4556, 4557, 4566,
302 4582, 4586, 4588, 4599, 4610, 4647, 4702, 4705, 4726, 4745, 4772, 4773,
303 4775, 4776, 4792, 4813, 4814, 4816, 4833, 4858, 4860, 4896, 4905, 4925,
304 4936, 4937, 4938, 4941, 4946, 4963, 4972, 5010, 5028, 5043, 5058, 5063,
305 5071, 5103, 5104, 5112, 5113, 5184, 5186
306
307 * More checking functions: fread, fread_unlocked, open*, mq_open.
308 Implemented by Jakub Jelinek and Ulrich Drepper.
309
310 * Extend fortification to C++. Implemented by Jakub Jelinek.
311
312 * Implement 'm' modifier for scanf. Add stricter C99/SUS compliance
313 by not recognizing 'a' as a modifier when those specs are requested.
314 Implemented by Jakub Jelinek.
315
316 * PPC optimizations to math and string functions.
317 Implemented by Steven Munroe.
318
319 * New interfaces: mkostemp, mkostemp64. Like mkstemp* but allow additional
320 options to be passed. Implemented by Ulrich Drepper.
321
322 * More CPU set manipulation functions. Implemented by Ulrich Drepper.
323
324 * New Linux interfaces: signalfd, eventfd, eventfd_read, and eventfd_write.
325 Implemented by Ulrich Drepper.
326
327 * Handle private futexes in the NPTL implementation.
328 Implemented by Jakub Jelinek and Ulrich Drepper.
329
330 * Add support for O_CLOEXEC. Implement in Hurd. Use throughout libc.
331 Implemented by Roland McGrath and Ulrich Drepper.
332
333 * Linux/x86-64 vDSO support. Implemented by Ulrich Drepper.
334
335 * SHA-256 and SHA-512 based password encryption.
336 Implemented by Ulrich Drepper.
337
338 * New locales: ber_DZ, ber_MA, en_NG, fil_PH, fur_IT, fy_DE, ha_NG, ig_NG,
339 ik_CA, iu_CA, li_BE, li_NL, nds_DE, nds_NL, pap_AN, sc_IT, tk_TM, ug_CN,
340 yo_NG.
341
342 + New iconv modules: MAC-CENTRALEUROPE, ISO-8859-9E, KOI8-RU.
343 Implemented by Ulrich Drepper.
344 \f
345 Version 2.6
346
347 * The following bugs are resolved with this release:
348
349 3156, 3213, 3285, 3291, 3306, 3313, 3320, 3322, 3325, 3326, 3334, 3348,
350 3352, 3363, 3369, 3426, 3427, 3429, 3451, 3458, 3465, 3480, 3483, 3493,
351 3514, 3515, 3559, 3632, 3664, 3673, 3674, 3745, 3747, 3818, 3840, 3842,
352 3851, 3855, 3884, 3885, 3902, 3905, 3919, 3944, 3954, 3955, 3957, 3991,
353 3995, 3996, 4024, 4040, 4069, 4070, 4074, 4076, 4096, 4101, 4102, 4114,
354 4130, 4131, 4181, 4276, 4306, 4342, 4344, 4349, 4364, 4368, 4381, 4392,
355 4403, 4405, 4406, 4411, 4438, 4439, 4455, 4456, 4465, 4512, 4514, 4586,
356 4702, 4858
357
358 * New Linux interfaces: epoll_pwait, sched_getcpu.
359
360 * New generic interfaces: strerror_l.
361
362 * nscd can now cache the services database. Implemented by Ulrich Drepper.
363 \f
364 Version 2.5
365
366 * The following bugs are resolved with this release:
367
368 39, 68, 192, 352, 388, 531, 935, 1006, 1201, 1203, 1386, 1782, 1783, 1784,
369 1785, 1786, 1787, 1951, 1974, 1996, 2072, 2098, 2125, 2134, 2158, 2182,
370 2349, 2376, 2386, 2389, 2415, 2418, 2420, 2423, 2450, 2451, 2466, 2472,
371 2473, 2477, 2498, 2499, 2501, 2502, 2505, 2507, 2508, 2509, 2517, 2526,
372 2569, 2571, 2592, 2611, 2625, 2632, 2644, 2662, 2680, 2683, 2684, 2693,
373 2695, 2703, 2734, 2751, 2764, 2766, 2775, 2792, 2821, 2823, 2832, 2841,
374 2843, 2883, 2892, 2908, 2914, 2926, 2961, 2978, 2980, 2987, 2997, 2998,
375 3013, 3018, 3034, 3040, 3044, 3123, 3124, 3137, 3138, 3143, 3155, 3189,
376 3225, 3251, 3252, 3253, 3273
377
378 * For Linux, the sorting of addresses returned by getaddrinfo now also
379 handles rules 3, 4, and 7 from RFC 3484. I.e., all rules are handled.
380 Implemented by Ulrich Drepper.
381
382 * Allow system admin to configure getaddrinfo with the /etc/gai.conf file.
383 Implemented by Ulrich Drepper.
384
385 * New Linux interfaces: splice, tee, sync_file_range, vmsplice.
386
387 * New iconv module for MIK. Contributed by Alexander Shopov.
388
389 * For sites with broken group and/or passwd database, the auto-propagate
390 option of nscd can prevent creating ID lookup entries from the results
391 of a name lookup and vice versa. This usually is no problem but some
392 site might have problems with the default behavior.
393 Implemented by Ulrich Drepper.
394
395 * Iterating over entire database in NIS can be slow. With the
396 SETENT_BATCH_READ option in /etc/default/nss a system admin can decide
397 to trade time for memory. The entire database will be read at once.
398 Implemented by Ulrich Drepper.
399
400 * The interfaces introduced in RFC 3542 have been implemented by
401 Ulrich Drepper.
402
403 * Support for the new ELF hash table format was added by Ulrich Drepper.
404
405 * Support for priority inheritance mutexes added by Jakub Jelinek and
406 Ulrich Drepper.
407
408 * Support for priority protected mutexes added by Jakub Jelinek.
409
410 * New locales: nr_ZA, pa_PK, ca_AD, ca_FR, ca_IT, el_CY, tr_CY, as_IN,
411 or_IN, csb_PL, fy_NL, sr_ME.
412 \f
413 Version 2.4
414
415 * More overflow detection functions.
416
417 * New iconv converters for IBM1025, IBM1122, IBM1137, IBM1153,
418 IBM1154, IBM1155, IBM1156, IBM1157, and IBM1158 contributed by Jiro Sekiba.
419
420 More converters for IBM803, IBM901, IBM902, IBM921, IBM1008, IBM1097,
421 IBM1112, IBM1123, IBM1130, IBM1140, IBM1141, IBM1142, IBM1143, IBM1144,
422 IBM1145, IBM1146, IBM1147, IBM1148, IBM1149, IBM1166, IBM1167, IBM4517,
423 IBM4899, IBM4909, IBM4971, IBM5347, IBM9030, IBM9066, IBM9448, IBM12712,
424 IBM16804, IBM1364, IBM1371, IBM1388, IBM1390, and IBM1399 contributed
425 by Masahide Washizawa.
426
427 * It is now possible to install audit libraries for the dynamic linker using
428 LD_AUDIT. Implemented by Ulrich Drepper.
429
430 * The LinuxThreads add-on, providing pthreads on Linux 2.4 kernels, is no
431 longer supported. The new NPTL implementation requires Linux 2.6 kernels.
432 For a libc and libpthread that works well on Linux 2.4 kernels, we
433 recommend using the stable 2.3 branch.
434
435 * The new function open_wmemstream acts like open_memstream,
436 but uses a wchar_t wide character buffer.
437
438 * The new function ppoll is an improved version of poll, similar to pselect.
439
440 * New interfaces: fdopendir, openat, fstatat, fchmodat, fchownat,
441 futimesat, faccessat, mkdirat, mkfifoat, mknodat,
442 renameat, unlinkat, linkat, symlinkat, readlinkat.
443
444 * New Linux kernel system calls: unshare,
445 inotify_init, inotify_add_watch, inotify_rm_watch.
446
447 * The euidaccess function is now also known by the alias eaccess,
448 for compatibility with some other systems.
449
450 * Timezone data updated to 2006b version.
451 \f
452 Version 2.3.6
453
454 * The following bugs are resolved with this release:
455
456 38, 253, 549, 622, 653, 721, 758, 851, 877, 915, 934, 955, 961,
457 1016, 1037, 1076, 1079, 1080, 1081, 1082, 1083, 1084, 1085, 1086,
458 1087, 1088, 1090, 1091, 1092, 1093, 1094, 1095, 1096, 1097, 1098,
459 1099, 1100, 1101, 1102, 1103, 1104, 1105, 1106, 1107, 1108, 1109,
460 1110, 1111, 1112, 1113, 1125, 1137, 1138, 1249, 1250, 1251, 1252,
461 1253, 1254, 1350, 1358, 1394, 1438, 1498, 1534
462
463 Visit <http://sources.redhat.com/bugzilla/> for the details of each bug.
464
465 * As of this release, GCC 4 can be used to compile the C Library.
466
467 * Timezone data updated to 2005m version.
468 \f
469 Version 2.3.5
470
471 * The following bugs are resolved with this release:
472
473 284, 592, 602, 626, 633, 640, 650, 661, 671, 681, 693, 700, 710, 719,
474 722, 723, 725, 726, 727, 728, 729, 730, 731, 732, 733, 734, 735, 736,
475 737, 738, 739, 740, 741, 742, 743, 744, 745, 765, 767, 768, 769, 776,
476 777, 787, 821, 822, 823, 825
477
478 Visit <http://sources.redhat.com/bugzilla/> for the details of each bug.
479 \f
480 Version 2.3.4
481
482 * Support for RFC 3678. Real implementations exist only for Linux so far.
483 Implemented by Ulrich Drepper.
484
485 * nscd can now cache entries persistently. Expiring entries are reloaded.
486 For speedups the cache can be shared in memory with client processes.
487 Implemented by Ulrich Drepper.
488
489 * nscd can now perform SELinux checks.
490 Implemented by Matthew Rickard <mjricka@epoch.ncsc.mil>.
491
492 * getaddrinfo queries are now cached. Canonical name lookup is performed
493 efficiently.
494 Implemented by Ulrich Drepper.
495
496 * The nothrow function attribute is used when headers are used by gcc when
497 compiling C code. This can avoid significant amounts of exception
498 handling data.
499
500 * The malloc functions perform more error checking and are stricter when
501 it comes to reacting on errors. The default action is to terminate
502 the process after showing an error message. Implemented by Ulrich Drepper.
503
504 * Reverse lookups of IPv6 addresses does not use bit string or .ip6.int
505 lookups anymore unless explicitly requested. Implemented by Ulrich Drepper.
506
507 * Namespaces in ld.so are implemented. DSOs can be loaded in separate
508 namespaces using the new function dlmopen(). This feature is of course,
509 like most other dynamic loading functionality, not available in statically
510 linked applications. Implemented by Ulrich Drepper.
511
512 * Low-overhead boundary checking variants of string and some stdio functions
513 were added. These are to be used in conjunction with a gcc patch by
514 Jakub Jelinek which adds calls to these functions if possible.
515 Implemented by Jakub Jelinek and Ulrich Drepper.
516
517 * Old code for several operating systems and machine architectures that
518 have not been in working condition in a long time have been removed from
519 the main source tree maintained by the GNU C Library's maintainers.
520 These files are now reside in the separate `ports' source module
521 that is usable as an add-on when building the library.
522 \f
523 Version 2.3.3
524
525 * New functions `dladdr1' and `dlinfo' in <dlfcn.h> provide more ways to
526 interrogate the dynamic linker, compatible with the Solaris interface.
527
528 * ELF thread-local storage support (TLS) now works on PowerPC and PowerPC64;
529 implemented by Paul Mackerras, Steven Munroe, and Roland McGrath.
530
531 * getifaddrs now uses the netlink interface on Linux to get its information.
532 Implemented by Thorsten Kukuk.
533
534 * getaddrinfo now implements AI_V4MAPPED, AI_ALL, and AI_ADDRCONF.
535 Implemented by Ulrich Drepper.
536
537 * support for non-executable stacks on x86 has been added. Changes mostly
538 by Roland McGrath.
539
540 * regex is now much faster for multibyte locales. Changes by Jakub Jelinek
541 and Ulrich Drepper.
542
543 * getaddrinfo now performs destination address selection according to
544 RFC 3484.
545 \f
546 Version 2.3.2
547
548 * Thread-safe interfaces for many functions that access locale data
549 were added in version 2.3, but these features were omitted from NEWS.
550 Many functions have variants with an `_l' suffix that take a `locale_t'
551 object as a parameter rather than consulting the current locale.
552 The new functions `newlocale', `duplocale', and `freelocale' in <locale.h>
553 create and maintain `locale_t' objects. Additionally, the new function
554 `uselocale' sets "the current locale" (as used by functions not so
555 parameterized) set for an individual thread. These features were added
556 in version 2.3, implemented by Ulrich Drepper and Roland McGrath.
557
558 * The functions getresuid, getresgid, setresuid, and setresgid, which
559 have long been available on Linux, are now declared in <unistd.h>
560 and are now also available on the Hurd.
561
562 * ELF thread-local storage support (TLS) now works on x86-64.
563
564 * The new dynamic string token $LIB is expanded in shared library names.
565 This normally expands to lib, but on some 64-bit platforms to lib64 instead.
566
567 * Aldy Hernandez contributed complete software floating point support for
568 PowerPC machines with no FPU.
569
570 * fexecve is implemented on Linux.
571
572 * The `btowc' function should work at least twice as fast due to
573 specialized callbacks in the iconv modules. Implemented by Bruno Haible.
574
575 * With approriate thread add-ons cancelable functions are now implemented
576 in libc.so as well. No need to call the function in libpthread. This
577 change allowed to finally disable the incorrect and expensive handling
578 of weak definition in ld.so.
579
580 * Yet more PLT entries in libc.so have been removed. We finally arrived
581 at the bare minimum. Startup times improved appropriately.
582
583 * Support for the new Linux/x86 system call interface was added. The
584 AT_SYSINFO auxiliary vector entry is recognized and handled.
585 \f
586 Version 2.3
587
588 * Masahide Washizawa contributed iconv modules for IBM1163 and IBM1164
589 charsets.
590
591 * iconv (the program and the interface) now accepts empty names (excluding
592 options like //TRANSLIT) to mean "use charset of current locale".
593
594 * localedef can now transliterate characters in strings which are not in
595 the provided charmap. The information from the input locale is used.
596
597 * Prelinking support was added for ELF targets. This requires additional
598 tools and recent versions of the GNU binutils. Contributed by Jakub Jelinek.
599
600 * Read-only stdio streams now use mmap to speed up operation by eliminating
601 copying and buffer underflows. To use add 'm' to the mode string of
602 the fopen/fdopen/freopen call. Implemented by Ulrich Drepper.
603
604 * The malloc functions were completely rewritten by Wolfram Gloger based
605 on Doug Lea's malloc-2.7.0.c.
606
607 * Isamu Hasegawa contributed a completely new and POSIX-conformant
608 implementation of regex.
609
610 * Bruno Haible upgraded the iconv and locale implementation to support
611 Unicode 3.2.
612
613 * Contents of the LC_* and LANG environment variables in the CEN style are
614 not recognized anymore. It never was used. Change by Ulrich Drepper.
615
616 * The runtime (ld.so, libc, libpthread for Linux) now can handle the ELF
617 thread-local storage (TLS) ABI on some platforms.
618 Changes by Ulrich Drepper. SH support by Kaz Kojima.
619
620 * Bruno Haible contributed iconv converters for ISO-2022-JP-3, SHIFT JIS-X0213,
621 EUC-JISX0213, and TSCII.
622
623 * New header <ifaddrs.h> with functions `getifaddrs' and `freeifaddrs':
624 BSD-compatible interface for getting all network interface addresses.
625 Implementation for IPv4 by Roland McGrath.
626
627 * Loading of locale data is faster due to the introduction of a locale
628 archive. Implemented by Roland McGrath and Ulrich Drepper.
629
630 * Startup times are significantly reduced by not using exported functions
631 inside the library itself. Changes by Jakub Jelinek, Roland McGrath,
632 and Ulrich Drepper.
633
634 * Steven Munroe contributed a port to PowerPC64/Linux.
635 \f
636 Version 2.2.6
637
638 * The Hurd now uses the GNU libio implementation of stdio rather than the
639 old GNU stdio implementation, and uses a new ABI (libc.so.0.3).
640
641 * The Hurd on x86 now has the `ioperm' function and <sys/io.h> header file
642 with the same behavior as the Linux system call of the same name.
643 \f
644 Version 2.2.5
645
646 * Stephen Moshier implemented log2, log10, powl and cbrtl for the
647 128-bit long double format.
648
649 * Masahide Washizawa contributed iconv modules for IBM1132, IBM1133, IBM1160,
650 IBM1161, and IBM1162 charsets.
651
652 * Andreas Jaeger contributed a port to x86-64/Linux.
653
654 * Peter Bruin contributed a port to PowerPC/Hurd.
655
656 * libc functions using I/O streams now can handle wide-oriented streams
657 as well.
658
659 * optimizations in the dynamic linker. Binaries created by recent binutils
660 versions start up quicker due to reduced time spent on relocations.
661
662 * Support for use of gcc3 added by Jakub Jelinek and HJ Lu.
663 \f
664 Version 2.2.4
665
666 * Stephen Moshier implemented cosh, expm1, log1p, acos, sinh, tanh,
667 asinh, atanh, j0 for the 128-bit long double format.
668
669 * Bruno Haible updated all the code handling Unicode in some form to
670 support Unicode 3.1.
671
672 * Speed of regex for single-byte locales is back to previous levels.
673 Patch by Isamu Hasegawa.
674
675 * Alpha, SPARC, and IA-64 now also using floating stacks.
676
677 * Startup time of internationalized applications greatly improved through
678 iconv cache. Use iconvconfig to generate the cache file.
679 Contributed by Ulrich Drepper.
680
681 * The IA-64 specific part of ld.so was rewritten to eliminate some pretty
682 severe performance problems. Patch by David Mosberger.
683
684 * The Hurd port got a lot more functionality like AIO, various stdio
685 extensions, etc. Mainly done by Roland McGrath.
686
687 * mtrace can now lookup symbols in shared libraries.
688 \f
689 Version 2.2.3
690
691 * Intel's IA-64 math library is largely integrated. It provides fast and
692 accurate implementatations for most basic and standard math functions
693 in float, double, and long double format.
694
695 * Stephen Moshier implemented j0, j1, jn, y0, y1, yn, lgamma, erf, erfc,
696 and asin for the 96-bit long double format and asin, log, tan for the
697 128-bit long double format.
698
699 * The beginning of a last-bit accurate math library by IBM Haifa were added.
700 The basic double functions exist today. Contributed by Abraham Ziv
701 <ziv@il.ibm.com>, Moshe Olshansky <olshansk@il.ibm.com>, Ealan Henis
702 <ealan@il.ibm.com>, and Anna Reitman <reitman@il.ibm.com>.
703
704 * An asynchronous name lookup library was added. The interface is designed
705 after POSIX AIO. The proposal was circulated beforehand to get comments.
706 No negative ones came in. Implemented by Ulrich Drepper.
707
708 * Port to S390/64bit contributed by Martin Schwidefsky
709 <schwidefsky@de.ibm.com>.
710
711 * David Mosberger <davidm@hpl.hp.com> implemented the setcontext family
712 of functions for Linux/IA-64.
713
714 * The RPC code is now thread safe. Threads can now use the same service
715 of different services at the same time. Patch by Eric Norum
716 <eric.norum@usask.ca> with some help by Ulrich Drepper.
717
718 * Martin Schwidefsky <schwidefsky@de.ibm.com> implemented the setcontext
719 family of functions for Linux/S390.
720
721 * Ulrich Drepper <drepper@redhat.com> implemented the setcontext family
722 of functions for Linux/x86.
723
724 * Port to Linux/CRIS contributed by Axis Communications.
725 \f
726 Version 2.2.2
727
728 * Lots of headers were cleaned up. Using the tool in the conform/ subdir
729 we can now check for namespace violations and missing declarations. The
730 result is that almost all headers are now Unix-compliant (as defined in
731 the upcoming XPG6). The negative side is that some programs might need
732 corrections, too, if they depend on the incorrect form of the headers in
733 previous versions which defined too many symbols and included too many
734 other headers.
735
736 * regex now handles multibyte character sets correctly.
737 Contributed by Isamu Hasegawa <isamu@yamato.ibm.com>.
738
739 * iconv (the program) does now conform to the upcoming XPG6 and handles
740 charmaps. Instead of the charset names the path of charmaps can be
741 provided and the conversion happens based on this data.
742 Contributed by Ulrich Drepper.
743
744 * The locale program now provides detailed information about the installed
745 locales. While
746
747 locale -a
748
749 only lists the names of the supported locales
750
751 locale -a --verbose
752
753 provides details such as country, language, and codeset name.
754 Contributed by Ulrich Drepper.
755 \f
756 Version 2.2.1
757
758 * The gencat program now parses the input file according to the charset
759 selected by the LC_CTYPE category. This is important for stateful
760 character sets. To make generating catalogs easier there is a way
761 to overwrite the charset selected by the locale: before the first
762 message or $ quote line the catalog can contain a line like
763
764 $ codeset=ISO-8859-2
765
766 to select the charset (ISO-8859-2 in this case).
767
768 Implemented by Shinya Hanataka and Ulrich Drepper.
769
770 * New codeset conversion modules: IBM-922 (Estonia PC codeset),
771 IBM-1124 (Ukraine PC codeset), IBM-1129 (Vietnamese PC codeset).
772 Contributed by Masahide Washizawa <washi@jp.ibm.com>.
773
774 * Optimized string functions for Alpha ev6 and ev67 by Richard Henderson
775 <rth@redhat.com> and Rick Gorton <rick.gorton@alpha-processor.com>.
776
777 * The LANGUAGE environment variable is now ignored unless the locale is
778 changed from the default "C" locale.
779
780 * The usual bug fixes.
781 \f
782 Version 2.2
783
784 * Greg McGary added runtime support for bounds checking using gcc's
785 new -fbounded-pointers option. ix86 target is complete. PowerPC
786 is in progress.
787
788 * Thorsten Kukuk added secure mode support to nscd.
789
790 * The Berkeley db libraries have been removed.
791
792 Related, the nss_db module is now in a separate package since it
793 obviously requires a database library being available.
794
795 * Wide character I/O streams implemented by Ulrich Drepper.
796
797 * Functions from the extended socket API added by Ulrich Drepper.
798
799 * Functions feenableexcept and fedisableexcept to control the
800 behaviour of individual exceptions have been added by Andreas Jaeger.
801
802 * ldconfig program added by Andreas Jaeger and Jakub Jelinek.
803
804 * The resolver code has been updated from bind 8.2.3-T5B which supports
805 threads. The integration was done by Andreas Jaeger, Adam D. Bradley,
806 and Mark Kettenis.
807
808 This change could in some situations effect backward compatibility. Since
809 now `_res' is a thread-local instead of a global variable, modifying it
810 in one thread does not have any effect in other threads.
811
812 The resolver library was also extended to allow IPv6 as the transport
813 protocol for the requests. This work was done by Stig Venaas.
814
815 * Compatibility code for K&R C compilers has been removed from the
816 header files. A ISO C compiler is needed to use the library
817 (conforming to either C89 or C99 standard).
818
819 * Complete rewrite of the localedef program to support multibyte character
820 sets. Implement handling of ISO 14651 and ISO 14652. Rewrite strcoll,
821 strxfrm, wcscoll, and wcsxfrm functions. Make isw*() functions work.
822 Implemented by Ulrich Drepper.
823
824 Bruno Haible significantly improved the generation and use of the data
825 structures for the wide character tables.
826
827 * Plural handling in gettext implemented by Ulrich Drepper.
828
829 * The utmp daemon has been removed.
830
831 * The port to MIPS-Linux has been finished by Andreas Jaeger.
832
833 * A port to Hitachi SH3 and SH4 has been contributed by Kazumoto Kojima
834 and Yutaka Niibe.
835
836 * POSIX clocks and timers implemented by Kaz Kylheku and Ulrich Drepper.
837
838 * POSIX barriers implemented by Kaz Kylheku.
839
840 * POSIX spawn function family implemented by Ulrich Drepper.
841
842 * POSIX spinlocks are now available.
843
844 * Timed wait functions for mutex, rwlock, and semaphores are implemented.
845
846 * the configure option --enable-kernel=X.Y.Z allows to strip out
847 compatibility for kernel versions before X.Y.Z. This is currently only
848 implemented for Linux.
849
850 * the sockaddr_in6 structure changed. The IPv6 working group added a new
851 field sin6_scope_id. This means that all programs using IPv6 should be
852 recompiled. Don't expect binary compatibility with previous glibc
853 versions.
854
855 * various conversion modules for IBM character sets contributed by
856 Masahide Washizawa.
857
858 * IA-64 port by Jes Sorensen and HJ Lu.
859
860 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
861 Compiling the GNU C Library for Linux/ia64
862 ******************************************
863
864 Please refer to the file INSTALL in the same directory as you found
865 this file for general information about configuring and compiling
866 glibc.
867
868 For general inquiries about glibc under Linux/ia64 please use the
869 following mailing list linux-ia64@linuxia64.org or one of the relevant
870 glibc mailing lists.
871
872 Recommended Tools for Compilation
873 =================================
874
875 In order for glibc-2.2 to build correctly on the ia64 you need at
876 least the following versions of the GNU tools (the :
877
878 * The Cygnus toolchain snapshot for the ia64 as of August 4
879 including the provided set of patches. It is however recommend
880 you use the October 24 toolchain snapshot or a more recent version.
881
882 OR alternatively you can try the following (the Cygnus toolchain is
883 the recommended solution):
884
885 * GCC and binutils, GAS and GNU LD out of CVS from
886 sources.redhat.com as of August 28, 2000 or later. The CVS tree
887 may require special patches to work properly on the ia64.
888
889 Configuring and compiling GNU Libc for Linux/ia64
890 =================================================
891
892 The library requires Linux kernel version 2.4.0-test4-000728 or
893 later to funtion properly. Besides that it support for debug libraries
894 is currently untested. Hence the following options
895 are required for configuring the library:
896
897 --disable-debug --enable-kernel=2.4.0
898
899 It is also important that you make sure the library picks up the
900 appropriate kernel header files, if you do not have recent enough
901 kernel headers in /usr/src/linux/include, you should use the
902 --with-headers=<path> option to specify the location.
903
904 As an example I personally use the following options to configure
905 the library:
906
907 --disable-debug
908 --disable-cvs
909 --enable-kernel=2.4.0
910 --host=ia64-linux
911 --enable-add-ons=yes
912 --prefix=/usr
913 --with-headers=/home/jes/linux/include
914
915
916 Good luck
917
918 Jes Sorensen <jes@linuxcare.com>,
919 November 14th, 2000
920 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
921 \f
922 Version 2.1.3
923
924 * bug fixes
925
926 \f
927 Version 2.1.2
928
929 * bug fixes
930
931 \f
932 Version 2.1.1
933
934 * New ISO C 9x function _Exit, imaxabs, and imaxdiv are added.
935
936 * New xdr functions are added; some rpc functions are now 64bit clean.
937
938 * Fixed a number of bugs and memory leaks (especially in NIS+ code).
939
940 * Fixed known incompatibilities with glibc 2.0.
941
942 * New functions lock64, strchrnul, rawmemchr, getutmp and getutmpx.
943
944 * Optimized a number of functions (especially the ELF dynamic loader).
945
946 * Update timezone data files.
947
948 * lots of charmaps corrections
949
950 * some new locale definitions and charmaps
951
952 \f
953 Version 2.1
954
955 * Richard Henderson corrected size of struct timeval on Linux/Alpha to
956 conform to POSIX member type requirements. Symbol versions have been
957 adjusted as needed within the library, and for direct use by applications,
958 but there is potential for problems if third-party libraries use
959 struct timeval as part of their interface. This does not present
960 a problem for X and other "essential" system libraries.
961
962 * An additional locale model to support C++ Standard Library locale
963 model and probably more was implemented by Ulrich Drepper.
964
965 * Eric Youngdale and Ulrich Drepper implemented versioning of objects on
966 symbol level.
967
968 * Miles Bader provided the `argp' function family to support hierachical
969 command line argument parsing, layered on top of getopt.
970
971 * strtod accepts new hexadecimal floating-point format from ISO C 9X.
972
973 * printf has two new specifiers %a and %A to print hexadecimal flaoting-point
974 numbers.
975
976 * scanf recognizes the %a and %A format for scanning floating point numbers.
977
978 * the new headers <stdint.h> and <inttypes.h> from ISO C 9X provides
979 information and interfaces for the available integer types.
980
981 * about 130 new math functions were added to implement the ISO C9x math
982 library.
983
984 * the new header <complex.h> contains definitions of the complex math
985 functions from ISO C 9X.
986
987 * the new header <tgmath.h> defines generic macros to use complex or
988 real valued functions.
989
990 * Thorsten Kukuk provided an implementation for NIS+, securelevel 0, 1 and 2.
991
992 * Andreas Jaeger provided a test suite for the math library.
993
994 * Mark Kettenis implemented the utmpx interface and an utmp daemon.
995
996 * Ulrich Drepper added character set conversion functions (iconv).
997
998 * Optimized string functions have been added.
999
1000 * The localedata addon is now part of glibc.
1001
1002 * An implementation of profiling shared libraries was added by Ulrich Drepper.
1003
1004 * Thorsten Kukuk and Ulrich Drepper provided an implementation for a caching
1005 daemon for NSS (nscd).
1006
1007 Missing a better place here are some numbers on improvements. Under
1008 Linux 2.1.125 un-tar-ing the kernel sources takes
1009
1010 user system wall
1011
1012 using local files 12.19s 6.88s 22.91s
1013
1014 using NIS 13.92s 8.91s 26.34s
1015
1016 using NIS & nscd 10.37s 7.34s 25.30s
1017
1018 using NIS+ 27.57s 30.37s 640.46s
1019
1020 using NIS+ & nscd 10.25s 7.83s 26.51s
1021
1022 using NIS & old nscd [1] 13.83s 8.32s 29.60s
1023
1024 Keep in mind that non-namelookup related operations dominate above times.
1025 It was just a common complain that using NIS+ unpacking the kernel is
1026 horribly slow.
1027
1028 [1] The old nscd implementation is not available anymore since it was
1029 distributed with glibc up to version 2.0.98 and thus is now replaced.
1030
1031 * Tim Waugh provided an implementation of the POSIX.2 wordexp function family.
1032
1033 * Mark Kettenis provided a Hesiod NSS module.
1034
1035 * The ELF dynamic loader knows how to process dynamic string tokens ($ORIGIN
1036 and $PLATFORM) in RPATHs and similar strings (Ulrich Drepper).
1037
1038 * rcmd can now handle netgroups (Dick Streefland).
1039
1040 * A port to the ARM was contributed by Phil Blundell, Pat Beirne and Scott
1041 Bambrough.
1042
1043 * Support for the IPv6 protocol has been added to the socket API, as per the
1044 latest draft standards.
1045
1046 * Support for Linux 2.2 has been added.
1047
1048 * Interface changes relative to the latest 2.0.x release:
1049 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1050 addseverity NEW: Unix98
1051 alphasort64 NEW: LFS
1052 argp_err_exit_status NEW: argp, GNU ext
1053 argp_error NEW: argp, GNU ext
1054 argp_failure NEW: argp, GNU ext
1055 argp_help NEW: argp, GNU ext
1056 argp_parse NEW: argp, GNU ext
1057 argp_program_bug_address NEW: argp, GNU ext
1058 argp_program_version NEW: argp, GNU ext
1059 argp_program_version_hook NEW: argp, GNU ext
1060 argp_state_help NEW: argp, GNU ext
1061 argp_usage NEW: argp, GNU ext
1062 authdes_create NEW: Secure RPC
1063 authdes_getucred NEW: Secure RPC
1064 authdes_pk_create NEW: Secure RPC
1065 backtrace NEW: GNU ext.
1066 backtrace_symbols NEW: GNU ext.
1067 backtrace_symbols_fd NEW: GNU ext.
1068 cacos NEW: ISO C 9x
1069 cacosf NEW: ISO C 9x
1070 cacosh NEW: ISO C 9x
1071 cacoshf NEW: ISO C 9x
1072 cacoshl NEW: ISO C 9x
1073 cacosl NEW: ISO C 9x
1074 capget NEW: kernel
1075 capset NEW: kernel
1076 carg NEW: ISO C 9x
1077 cargf NEW: ISO C 9x
1078 cargl NEW: ISO C 9x
1079 casin NEW: ISO C 9x
1080 casinf NEW: ISO C 9x
1081 casinh NEW: ISO C 9x
1082 casinhf NEW: ISO C 9x
1083 casinhl NEW: ISO C 9x
1084 casinl NEW: ISO C 9x
1085 catan NEW: ISO C 9x
1086 catanf NEW: ISO C 9x
1087 catanh NEW: ISO C 9x
1088 catanhf NEW: ISO C 9x
1089 catanhl NEW: ISO C 9x
1090 catanl NEW: ISO C 9x
1091 cbc_crypt NEW: Secure RPC
1092 ccos NEW: ISO C 9x
1093 ccosf NEW: ISO C 9x
1094 ccosh NEW: ISO C 9x
1095 ccoshf NEW: ISO C 9x
1096 ccoshl NEW: ISO C 9x
1097 ccosl NEW: ISO C 9x
1098 cexp NEW: ISO C 9x
1099 cexpf NEW: ISO C 9x
1100 cexpl NEW: ISO C 9x
1101 cimag NEW: ISO C 9x
1102 cimagf NEW: ISO C 9x
1103 cimagl NEW: ISO C 9x
1104 clearerr_locked REMOVED
1105 clntunix_create NEW: sunrpc ext
1106 clog NEW: ISO C 9x
1107 clog10 NEW: ISO C 9x
1108 clog10f NEW: ISO C 9x
1109 clog10l NEW: ISO C 9x
1110 clogf NEW: ISO C 9x
1111 clogl NEW: ISO C 9x
1112 conj NEW: ISO C 9x
1113 conjf NEW: ISO C 9x
1114 conjl NEW: ISO C 9x
1115 cpow NEW: ISO C 9x
1116 cpowf NEW: ISO C 9x
1117 cpowl NEW: ISO C 9x
1118 cproj NEW: ISO C 9x
1119 cprojf NEW: ISO C 9x
1120 cprojl NEW: ISO C 9x
1121 creal NEW: ISO C 9x
1122 crealf NEW: ISO C 9x
1123 creall NEW: ISO C 9x
1124 creat64 NEW: LFS
1125 csin NEW: ISO C 9x
1126 csinf NEW: ISO C 9x
1127 csinh NEW: ISO C 9x
1128 csinhf NEW: ISO C 9x
1129 csinhl NEW: ISO C 9x
1130 csinl NEW: ISO C 9x
1131 csqrt NEW: ISO C 9x
1132 csqrtf NEW: ISO C 9x
1133 csqrtl NEW: ISO C 9x
1134 ctan NEW: ISO C 9x
1135 ctanf NEW: ISO C 9x
1136 ctanh NEW: ISO C 9x
1137 ctanhf NEW: ISO C 9x
1138 ctanhl NEW: ISO C 9x
1139 ctanl NEW: ISO C 9x
1140 des_setparity NEW: Secure RPC
1141 ecb_crypt NEW: Secure RPC
1142 endutxent NEW: Unix98
1143 exp10 NEW: ISO C 9x
1144 exp10f NEW: ISO C 9x
1145 exp10l NEW: ISO C 9x
1146 exp2 NEW: ISO C 9x
1147 exp2f NEW: ISO C 9x
1148 exp2l NEW: ISO C 9x
1149 fattach NEW: STREAMS
1150 fdetach NEW: STREAMS
1151 fdim NEW: ISO C 9x
1152 fdimf NEW: ISO C 9x
1153 fdiml NEW: ISO C 9x
1154 feclearexcept NEW: ISO C 9x
1155 fegetenv NEW: ISO C 9x
1156 fegetexceptflag NEW: ISO C 9x
1157 fegetround NEW: ISO C 9x
1158 feholdexcept NEW: ISO C 9x
1159 feof_locked REMOVED
1160 feraiseexcept NEW: ISO C 9x
1161 ferror_locked REMOVED
1162 fesetenv NEW: ISO C 9x
1163 fesetexceptflag NEW: ISO C 9x
1164 fesetround NEW: ISO C 9x
1165 fetestexcept NEW: ISO C 9x
1166 feupdateenv NEW: ISO C 9x
1167 fflush_locked REMOVED
1168 ffsl NEW: GNU ext.
1169 ffsll NEW: GNU ext.
1170 fgetpos64 NEW: LFS
1171 fgets_unlocked NEW: GNU ext.
1172 fileno_locked REMOVED
1173 fma NEW: ISO C 9x
1174 fmaf NEW: ISO C 9x
1175 fmal NEW: ISO C 9x
1176 fmax NEW: ISO C 9x
1177 fmaxf NEW: ISO C 9x
1178 fmaxl NEW: ISO C 9x
1179 fmin NEW: ISO C 9x
1180 fminf NEW: ISO C 9x
1181 fminl NEW: ISO C 9x
1182 fmtmsg NEW: Unix98
1183 fopen64 NEW: LFS
1184 fputc_locked REMOVED
1185 fputs_unlocked NEW: GNU ext.
1186 fread_unlocked NEW: GNU ext.
1187 freopen64 NEW: LFS
1188 fseeko NEW: Unix98
1189 fsetpos64 NEW: LFS
1190 fstatfs64 NEW: LFS
1191 fstatvfs NEW: Unix98
1192 fstatvfs64 NEW: LFS
1193 ftello NEW: Unix98
1194 ftello64 NEW: LFS
1195 ftruncate64 NEW: LFS
1196 ftw64 NEW: LFS
1197 fwrite_unlocked NEW: GNU ext.
1198 gai_strerror NEW: IPv6
1199 gamma_r REMOVED
1200 gammaf_r REMOVED
1201 gammal_r REMOVED
1202 getchar_locked REMOVED
1203 getdate NEW: Unix98
1204 getdate_err NEW: Unix98
1205 getdate_r NEW: GNU ext.
1206 getmsg NEW: STREAMS
1207 getnameinfo NEW: IPv6
1208 getnetname NEW: Secure RPC
1209 getpmsg NEW: STREAMS
1210 getpt NEW: Unix98 PTY
1211 getrlimit64 NEW: LFS
1212 getutxent NEW: Unix98
1213 getutxid NEW: Unix98
1214 getutxline NEW: Unix98
1215 glob64 NEW: GNU ext.
1216 globfree64 NEW: GNU ext.
1217 gnu_get_libc_release NEW: GNU ext.
1218 gnu_get_libc_version NEW: GNU ext.
1219 grantpt NEW: Unix98 PTY
1220 host2netname NEW: Secure RPC
1221 iconv NEW: iconv
1222 iconv_close NEW: iconv
1223 iconv_open NEW: iconv
1224 if_freenameindex NEW: IPv6
1225 if_indextoname NEW: IPv6
1226 if_nameindex NEW: IPv6
1227 if_nametoindex NEW: IPv6
1228 in6addr_any NEW: IPv6
1229 in6addr_loopback NEW: IPv6
1230 inet6_isipv4mapped NEW: IPv6
1231 isastream NEW: STREAMS
1232 iswblank NEW: GNU ext.
1233 key_decryptsession NEW: Secure RPC
1234 key_decryptsession_pk NEW: Secure RPC
1235 key_encryptsession NEW: Secure RPC
1236 key_encryptsession_pk NEW: Secure RPC
1237 key_gendes NEW: Secure RPC
1238 key_get_conv NEW: Secure RPC
1239 key_secretkey_is_set NEW: Secure RPC
1240 key_setnet NEW: Secure RPC
1241 key_setsecret NEW: Secure RPC
1242 llrint NEW: ISO C 9x
1243 llrintf NEW: ISO C 9x
1244 llrintl NEW: ISO C 9x
1245 llround NEW: ISO C 9x
1246 llroundf NEW: ISO C 9x
1247 llroundl NEW: ISO C 9x
1248 log2 NEW: ISO C 9x
1249 log2f NEW: ISO C 9x
1250 log2l NEW: ISO C 9x
1251 lrint NEW: ISO C 9x
1252 lrintf NEW: ISO C 9x
1253 lrintl NEW: ISO C 9x
1254 lround NEW: ISO C 9x
1255 lroundf NEW: ISO C 9x
1256 lroundl NEW: ISO C 9x
1257 lseek64 NEW: LFS
1258 makecontext NEW: Unix98
1259 mempcpy NEW: GNU ext.
1260 mmap64 NEW: LFS
1261 moncontrol REMOVED
1262 modify_ldt NEW: kernel
1263 nan NEW: ISO C 9x
1264 nanf NEW: ISO C 9x
1265 nanl NEW: ISO C 9x
1266 nearbyint NEW: ISO C 9x
1267 nearbyintf NEW: ISO C 9x
1268 nearbyintl NEW: ISO C 9x
1269 netname2host NEW: Secure RPC
1270 netname2user NEW: Secure RPC
1271 nexttoward NEW: ISO C 9x
1272 nexttowardf NEW: ISO C 9x
1273 nexttowardl NEW: ISO C 9x
1274 nftw NEW: Unix98
1275 nftw64 NEW: LFS
1276 open64 NEW: LFS
1277 passwd2des NEW: Secure RPC
1278 pow10 NEW: GNU ext.
1279 pow10f NEW: GNU ext.
1280 pow10l NEW: GNU ext.
1281 pread NEW: Unix98
1282 pread64 NEW: LFS
1283 printf_size NEW: GNU ext.
1284 printf_size_info NEW: GNU ext.
1285 profil_counter REMOVED
1286 pthread_mutexattr_getkind_np REPLACED
1287 pthread_mutexattr_setkind_np REPLACED
1288 ptsname NEW: Unix98 PTY
1289 ptsname_r NEW: Unix98 PTY
1290 putc_locked REMOVED
1291 putchar_locked REMOVED
1292 putgrent NEW: GNU ext.
1293 putmsg NEW: STREAMS
1294 putpmsg NEW: STREAMS
1295 pututxline NEW: Unix98
1296 pwrite NEW: Unix98
1297 pwrite64 NEW: LFS
1298 readdir64 NEW: LFS
1299 readdir64_r NEW: LFS
1300 remquo NEW: ISO C 9x
1301 remquof NEW: ISO C 9x
1302 remquol NEW: ISO C 9x
1303 round NEW: ISO C 9x
1304 roundf NEW: ISO C 9x
1305 roundl NEW: ISO C 9x
1306 rtime NEW: GNU ext.
1307 scalbln NEW: ISO C 9x
1308 scalblnf NEW: ISO C 9x
1309 scalblnl NEW: ISO C 9x
1310 scandir64 NEW: LFS
1311 sendfile NEW: kernel
1312 setcontext NEW: Unix98
1313 setrlimit64 NEW: LFS
1314 setutxent NEW: Unix98
1315 sighold NEW: Unix98
1316 sigignore NEW: Unix98
1317 sigqueue NEW: POSIX.1b
1318 sigrelse NEW: Unix98
1319 sigset NEW: POSIX.1b
1320 sigtimedwait NEW: POSIX.1b
1321 sigwaitinfo NEW: POSIX.1b
1322 sincos NEW: GNU ext.
1323 sincosf NEW: GNU ext.
1324 sincosl NEW: GNU ext.
1325 statfs64 NEW: LFS
1326 statvfs NEW: Unix98
1327 statvfs64 NEW: LFS
1328 strcasestr NEW: GNU ext.
1329 strtoimax NEW: ISO C 9x
1330 strtoumax NEW: ISO C 9x
1331 strverscmp NEW: GNU ext.
1332 svcauthdes_stats NEW: Secure RPC
1333 svcunix_create NEW: sunrpc etx
1334 svcunixfd_create NEW: sunrpc ext
1335 swapcontext NEW: Unix98
1336 tcgetsid NEW: Unix98 PTY
1337 tdestroy NEW: GNU ext.
1338 tgamma NEW: ISO C 9x
1339 tgammaf NEW: ISO C 9x
1340 tgammal NEW: ISO C 9x
1341 tmpfile64 NEW: LFS
1342 trunc NEW: ISO C 9x
1343 truncate64 NEW: LFS
1344 truncf NEW: ISO C 9x
1345 truncl NEW: ISO C 9x
1346 umount2 NEW: kernel
1347 unlockpt NEW: Unix98 PTY
1348 updwtmpx NEW: Unix98
1349 user2netname NEW: Secure RPC
1350 utmpxname NEW: Unix98
1351 versionsort NEW: GNU ext.
1352 versionsort64 NEW: GNU ext.
1353 waitid NEW: Unix98
1354 wcscasecmp NEW: GNU ext.
1355 wcsncasecmp NEW: GNU ext.
1356 wcsnlen NEW: GNU ext.
1357 wcstoimax NEW: ISO C 9x
1358 wcstoll NEW: ISO C 9x
1359 wcstoull NEW: ISO C 9x
1360 wcstoumax NEW: ISO C 9x
1361 wcswcs NEW: Unix98
1362 wordexp NEW: POSIX.2
1363 wordfree NEW: POSIX.2
1364 write_profiling REMOVED
1365 xdecrypt NEW: Secure RPC
1366 xdr_authdes_cred NEW: Secure RPC
1367 xdr_authdes_verf NEW: Secure RPC
1368 xdr_cryptkeyarg NEW: Secure RPC
1369 xdr_cryptkeyarg2 NEW: Secure RPC
1370 xdr_cryptkeyres NEW: Secure RPC
1371 xdr_getcredres NEW: Secure RPC
1372 xdr_key_netstarg NEW: Secure RPC
1373 xdr_key_netstres NEW: Secure RPC
1374 xdr_keybuf NEW: Secure RPC
1375 xdr_keystatus NEW: Secure RPC
1376 xdr_netnamestr NEW: Secure RPC
1377 xdr_sizeof NEW: Secure RPC
1378 xdr_unixcred NEW: sunrpc ext
1379 xencrypt NEW: Secure RPC
1380 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1381 \f
1382 Version 2.0.6
1383
1384 * more bug fixes
1385
1386 \f
1387 Version 2.0.5
1388
1389 * more bug fixes
1390
1391 * inet_ntoa is thread-safe
1392
1393 * updwtmp is moved from libutil to libc
1394
1395 * rewrite of cbrt function
1396
1397 * update of timezone data
1398 \f
1399 Version 2.0.4
1400
1401 * more bug fixes
1402 \f
1403 Version 2.0.3
1404
1405 * more bug fixes
1406 \f
1407 Version 2.0.2
1408
1409 * more bug fixes
1410
1411 * add atoll function
1412
1413 * fix complex problems in Berkeley DB code
1414
1415 * fix math functions
1416 \f
1417 Version 2.0.1
1418
1419 * fixed lots of header problems (especially Linux/GNU specific)
1420
1421 * dynamic loader preserves all registers
1422
1423 * Roland McGrath provided support for handling of auxiliary objects in
1424 the ELF dynamic loader.
1425
1426 * support for parallel builds is improved
1427 \f
1428 Version 2.0
1429
1430 * GNU extensions are no longer declared by default. To enable them you
1431 must define the macro `_GNU_SOURCE' in your program or compile with
1432 `-D_GNU_SOURCE'.
1433
1434 * The library has changed from using GNU ld symbol aliases to using weak
1435 symbols where available. The ELF object file format supports weak
1436 symbols; GNU ld also supports weak symbols in the a.out format. (There
1437 is also now support for other GNU ld extensions in ELF. Use the
1438 `--with-elf' option to configure to indicate you have ELF, and
1439 `--with-gnu-ld' if using GNU ld.) This change resulted in the deletion
1440 of many files which contained only symbol aliases, reducing the size of
1441 the source and the compiled library; many other files were renamed to
1442 less cryptic names previously occupied by the symbol alias files.
1443 There is a new header file <elf.h> for programs which operate on
1444 files in the ELF format.
1445
1446 * Converted to Autoconf version 2, so `configure' has more options.
1447 Run `configure --help' to see the details.
1448
1449 * The library can now be configured to build profiling, highly-optimized
1450 (but undebuggable), and/or shared libraries (ELF with GNU ld only). The
1451 `--enable-profile', `--enable-omitfp', and `--enable-shared' options to
1452 `configure' enable building these extra libraries. The shared library is
1453 built by default when using both ELF and GNU ld. When shared libraries
1454 are enabled, the new library `-ldl' is available for arbitrary run-time
1455 loading of shared objects; its interface is defined in <dlfcn.h>. The
1456 new header file <link.h> gives access to the internals of the run-time
1457 dynamic linker, `ld.so'. The shell script `ldd' is similar to the
1458 application of same name on other systems and it provides information
1459 about dynamically linked binaries.
1460
1461 * The C library now provides the run-time support code for profiling
1462 executables compiled with `-pg'. Programs can control the profiling code
1463 through the interface in <sys/gmon.h>. The `gmon.out' files written by
1464 the GNU C library can be read only by GNU `gprof' (from GNU binutils);
1465 the support for this file format was contributed by David Mosberger-Tang.
1466
1467 * The math code has been replaced with a math library based on fdlibm from
1468 Sun, and modified by JT Conklin and Ulrich Drepper with i387 support, by
1469 Ian Taylor with `float' functions and by Ulrich Drepper with `long double'
1470 functions. The math functions now reside in a separate library, so
1471 programs using them will need to use `-lm' their linking commands.
1472
1473 * John C. Bowman contributed optimized ix87 assembler inline functions.
1474
1475 * Ulrich Drepper has contributed support for an `/etc/nsswitch.conf'
1476 mechanism similar to that found in Solaris 2. This is now used for the
1477 group, passwd, hosts, networks, services, protocols, rpc, ethers,
1478 shadow, netgroup, publickey, and alias databases. The `nsswitch.conf'
1479 file controls what services are used for each individual database. This
1480 works by loading shared libraries with names specified in `nsswitch.conf',
1481 so service modules can be changed or added at any time without even
1482 relinking any program. Currently there are the file, db, and NIS based
1483 NSS services available.
1484
1485 * The new functions `strtoq' and `strtouq' parse integer values from
1486 strings, like `strtol' and `strtoul', but they return `long long int' and
1487 `unsigned long long int' values, respectively (64-bit quantities).
1488
1489 * The new functions `strtof' and `strtold' parse floating-point values from
1490 strings, like `strtod', but they return `float' and `long double' values,
1491 respectively (on some machines `double' and `long double' are the same).
1492
1493 * Ulrich Drepper has contributed new implementations of the floating-point
1494 printing and reading code used in the `printf' family of functions and
1495 `strtod', `strtof', and `strtold'. These new functions are perfectly
1496 accurate, and much faster than the old ones.
1497
1498 * The implementation of the POSIX locale model was completely rewritten by
1499 Ulrich Drepper. This includes the new programs `localedef' and `locale'
1500 to compile the POSIX locale definition.
1501
1502 * The former dummy implementations of the strcoll and strxfrm function are
1503 now replaced by fully functional code contributed by Ulrich Drepper. The
1504 collation information comes from the POSIX locale definitions.
1505
1506 * The new header <langinfo.h> defines an interface for accessing
1507 various locale-dependent data (using the locale chosen with `setlocale').
1508
1509 * Ulrich Drepper has contributed a new suite of functions for operation on
1510 wide-character and multibyte-character strings, in <wchar.h>;
1511 and classification and case conversion of wide characters, in <wctype.h>.
1512 These new functions are conforming to the ISO C, Amendement 1 specification.
1513
1514 * There is now a second implementation of the standard I/O library available.
1515 It comes from GNU libg++ as was written by Per Bothner, heavily modified
1516 by Hongjiu Lu and made thread safe by Ulrich Drepper.
1517
1518 * You can now use positional parameter specifications in format strings
1519 for the `printf' and `scanf' families of functions. For example,
1520 `printf ("Number %2$d, Mr %1$s\n", "Jones", 6);'' prints
1521 ``Number 6, Mr Jones''. This is mainly useful when providing different
1522 format strings for different languages, whose grammars may dictate
1523 different orderings of the values being printed. To support this
1524 feature, the interface for `register_printf_handler' has changed; see
1525 the header file <printf.h> for details.
1526
1527 * The `printf' and `scanf' families of functions now understand a new
1528 formatting flag for numeric conversions: the ' flag (e.g. %'d or %'f) says
1529 to group numbers as indicated by the locale; for `scanf' and friends, this
1530 says to accept as valid only a number with all the proper grouping
1531 separators in the right places. In the default "C" locale, numbers are
1532 not grouped; but locales for specific countries will define the usual
1533 conventions (i.e. separate thousands with `,' in the US locale).
1534
1535 * The pgrp functions have been regularized, slightly incompatibly but much
1536 less confusingly. The core functions are now `getpgid' and `setpgid',
1537 which take arguments for the PID to operate on; the POSIX.1 `getpgrp' (no
1538 argument) and BSD `setpgrp' (identical to `setpgid') functions are
1539 provided for compatibility. There is no longer an incompatible `getpgrp'
1540 with an argument declared under _BSD_SOURCE; no BSD code uses it.
1541
1542 * The new header file <fts.h> and suite of functions simplify programs that
1543 operate on directory trees. This code comes from 4.4 BSD.
1544
1545 * The resolver code has been updated from the BIND 4.9.5-P1 release.
1546 Parts of the code were heavily modified by Ulrich Drepper to fit in the
1547 NSS scheme used in glibc.
1548
1549 * There is a new malloc debugging hook `__memalign_hook'.
1550
1551 * There are new typedefs `ushort' for `unsigned short int' and `uint' for
1552 `unsigned int' in <sys/types.h>. These are for compatibility only and
1553 their use is discouraged.
1554
1555 * The `-lmcheck' library to enable standard malloc debugging hooks is now
1556 done differently, so that it works even without GNU ld.
1557
1558 * New function `euidaccess' checks allowed access to a file like `access',
1559 but using the effective IDs instead of the real IDs.
1560
1561 * The time zone data files have been updated for the latest and greatest
1562 local time conventions of the countries of the world.
1563
1564 * The new function `dirfd' extracts the file descriptor used by a DIR stream;
1565 see <dirent.h>.
1566
1567 * The new functions `ecvt', `fcvt', and `gcvt' provide an obsolete interface
1568 for formatting floating-point numbers. They are provided only for
1569 compatibility; new programs should use `sprintf' instead. There are
1570 also equivalent function for the `long double' floating-point type and
1571 all functions also exist in a reentrant form.
1572
1573 * The new auxiliary library `-lutil' from 4.4 BSD contains various
1574 functions for maintaining the login-record files (primarily of use to
1575 system programs such as `login'), and convenient functions for
1576 allocating and initializing a pseudo-terminal (pty) device.
1577
1578 * Ulrich Drepper has contributed new support for System V style
1579 shared memory and IPC on systems that support it.
1580
1581 * Ulrich Drepper has contributed several miscellaneous new functions found
1582 in System V: The `hsearch' family of functions provide an effective
1583 implementation of hash tables; `a64l' and `l64a' provide a very simple
1584 binary to ASCII mapping; `drand48' and friends provide a 48-bit random
1585 number generator.
1586
1587 * Ulrich Drepper has contributed new reentrant counterparts for the
1588 `random' and `hsearch' families of functions; `random_r', `hsearch_r', etc.
1589
1590 * Ulrich Drepper has contributed new, highly-optimized versions of several
1591 string functions for the i486/Pentium family of processors.
1592
1593 * Ulrich Drepper has updated the Linux-specific code, based largely
1594 on work done in Hongjiu Lu's version of GNU libc for Linux.
1595 The GNU library now supports Linux versions 2.0.10 and later,
1596 using the ELF object file format (i[3456]86-*-linux).
1597
1598 * Andreas Schwab has ported the C library to Linux/m68k (m68k-*-linux).
1599
1600 * David Mosberger-Tang and Richard Henderson have ported the C library
1601 to Linux/Alpha (alpha-*-linux). Richard Henderson contributed the
1602 dynamic linking support for ELF/Alpha.
1603
1604 * Richard Henderson contributed several Alpha optimized assembler function
1605 for arithmetic and string handling.
1606
1607 * Ulrich Drepper has contributed a new set of message catalog functions to
1608 support multiple languages using the <libintl.h> interface, for use with
1609 his new package GNU gettext. Translation volunteers have contributed
1610 catalogs of the library's messages in Spanish, German, and Korean.
1611
1612 * For compatibility with XPG4, Ulrich Drepper has contributed the `gencat'
1613 program and the `catgets' function for reading the catalog files it
1614 creates. (The <libintl.h> interface is preferred; we include the
1615 <nl_types.h> interface using `catgets' only for source compatibility with
1616 programs already written to use it.)
1617
1618 * New header file <values.h> gives SVID-compatible names for <limits.h>
1619 constants.
1620
1621 * Various new macros, declarations, and small header files for compatibility
1622 with 4.4 BSD.
1623
1624 * New function `group_member' is a convenient way to check if a process has
1625 a given effective group ID.
1626
1627 * When using GCC 2.7 and later, the socket functions are now declared in a
1628 special way so that passing an argument of type `struct sockaddr_in *',
1629 `struct sockaddr_ns *', or `struct sockaddr_un *' instead of the generic
1630 `struct sockaddr *' type, does not generate a type-clash warning.
1631
1632 * New function `error' declared in header file <error.h> is a convenient
1633 function for printing error messages and optionally exiting; this is the
1634 canonical function used in GNU programs. The new functions `err', `warn',
1635 and friends in header file <err.h> are the canonical 4.4 BSD interface for
1636 doing the same thing.
1637
1638 * The <glob.h> interface has several new flags from 4.4 BSD that extend the
1639 POSIX.2 `glob' function to do ~ and {...} expansion.
1640
1641 * New function `unsetenv' complements `setenv' for compatibility with 4.4 BSD.
1642 `clearenv' which is used in POSIX.9 is also available.
1643
1644 * New function `getsid' returns session ID number on systems that support it.
1645
1646 * We have incorporated the 4.4 BSD `db' library (version 1.85). New header
1647 files <db.h> and <mpool.h> provide a rich set of functions for several
1648 types of simple databases stored in memory and in files, and <ndbm.h> is
1649 an old `ndbm'-compatible interface using the `db' functions. Link with
1650 `-ldb' to get these functions.
1651
1652 * New macro `strdupa' copies a string like `strdup', but uses local stack
1653 space from `alloca' instead of dynamic heap space from `malloc'.
1654
1655 * New function `strnlen' is like `strlen' but searches only a given maximum
1656 number of characters for the null terminator. `stpncpy', `strndup' and
1657 `strndupa' are similar variants for the `stpcpy', `strdup' and `strdupa'
1658 function.
1659
1660 * New function `statfs' in header <sys/statfs.h>.
1661
1662 * The new <argz.h> and <envz.h> interfaces contributed by Miles Bader
1663 provide convenient functions for operating on blocks of null-terminated
1664 strings.
1665
1666 * A new suite of functions in <utmp.h> handle all the details of reading
1667 and writing the utmp file.
1668
1669 * An implementation of the NIS/YP(tm) based NSS service was contributed by
1670 Thorsten Kukuk.
1671
1672 * Paul Eggert and Ulrich Drepper modified the `strftime' function to be
1673 completely POSIX compliant and also implemented the extended functionality
1674 to handle alternate digit representation and alternate era date formats.
1675
1676 * Ulrich Drepper provided an implementation of the `strptime' function
1677 defined in XPG4.2 which transforms a string into a `struct tm' value.
1678
1679 * Paul Eggert provided the tzselect shell script as part of the timezone
1680 code. The shell script makes it easy to select the correct timezone
1681 specification.
1682
1683 * The implementation of the malloc family of functions is completely replaced
1684 by a new implementation by Doug Lea with many improvements by Wolfram Gloger.
1685 The implementation uses the mmap function (if available) and it is
1686 optimized for the use in multi threaded programs.
1687
1688 * Ulrich Drepper contributed a MD5 "encryption" for the crypt family of
1689 functions. This new functionality is usable by specifying a special
1690 salt string and it is compatible with implementation on *BSD systems.
1691
1692 * Lots of functions from the XPG4.2 standard were added by Ulrich Drepper:
1693 `getsubopt' to handle second level command line options, `bsd_signal'
1694 to access BSD style `signal' functionality, the obsolete `regexp' style
1695 expression matcher.
1696
1697 * the `lchown' function is available on system which support this
1698 functionality.
1699
1700 * The implementation of the shadow password handling function was contributed
1701 by Ulrich Drepper.
1702
1703 * David Mosberger-Tang changed the SunRPC implementation to be 64bit safe.
1704
1705 * POSIX.1g support was added. The <sys/select.h> header is available,
1706 `isfdtype' and `pselect' are implemented. Craig Metz contributed an
1707 implementation of `getaddrinfo'.
1708 \f
1709 Version 1.09
1710
1711 * For cross-compilation you should now set `BUILD_CC' instead of `HOST_CC'.
1712
1713 * New header file <fstab.h> and new functions `getfsspec', `getfsent' and
1714 friends, for parsing /etc/fstab. This code comes from 4.4 BSD.
1715
1716 * The new function `daemon' from 4.4 BSD is useful for server programs that
1717 want to put themselves in the background.
1718
1719 * Joel Sherrill has contributed support for several standalone boards that
1720 run without an operating system.
1721
1722 * `printf', `scanf' and friends now accept a `q' type modifier for long
1723 long int as well as `ll'. Formats using these might be `%qu' or `%lld'.
1724
1725 * All of the code taken from BSD (notably most of the math and networking
1726 routines) has been updated from the BSD 4.4-Lite release.
1727
1728 * The resolver code has been updated from the BIND-4.9.3-BETA9 release.
1729
1730 * The new functions `getdomainname' and `setdomainname' fetch or change the
1731 YP/NIS domain name. These are system calls which exist on systems which
1732 have YP (aka NIS).
1733
1734 * The time zone data files have been updated for the latest international
1735 conventions.
1736
1737 * The SunRPC programs `portmap' and `rpcinfo' are now installed in
1738 $(sbindir) (usually /usr/local/sbin) instead of $(bindir).
1739 \f
1740 Version 1.08
1741
1742 * The C library now includes support for Sun RPC, from Sun's free
1743 RPCSRC-4.0 distribution. The `portmap', `rpcinfo', and `rpcgen' programs
1744 are included. (There is still no support for YP.)
1745
1746 * Tom Quinn has contributed a port of the C library to SGI machines running
1747 Irix 4 (mips-sgi-irix4).
1748
1749 * The new `lockf' function is a simplified interface to the locking
1750 facilities of `fcntl', included for compatibility.
1751
1752 * New time functions `timegm', `timelocal', and `dysize' for compatibility.
1753
1754 * New header file <sys/timeb.h> and new function `ftime' for compatibility.
1755
1756 * New header files <poll.h> and <sys/poll.h> and new function `poll' for
1757 compatibility.
1758
1759 * The error message printed by `assert' for a failed assertion now includes
1760 the name of the program (if using GNU ld) and the name of the calling
1761 function (with versions of GCC that support this).
1762
1763 * The `psignal' function is now declared in <signal.h>, not <stdio.h>.
1764
1765 * The library now includes the <sys/mman.h> header file and memory
1766 management functions `mmap', `munmap', `mprotect', `msync', and
1767 `madvise', on systems that support those facilities.
1768
1769 * The interface for `mcheck' has changed slightly: the function called to
1770 abort the program when an allocation inconsistency is detected now takes
1771 an argument that indicates the type of failure. The new function
1772 `mprobe' lets you request a consistency check for a particular block at
1773 any time (checks are normally done only when you call `free' or `realloc'
1774 on a block).
1775
1776 * It is now possible to easily cross-compile the C library, building on one
1777 system a library to run on another machine and/or operating system. All
1778 you need to do is set the variable `HOST_CC' in `configparms' to the
1779 native compiler for programs to run on the machine you are building on (a
1780 few generator programs are used on Unix systems); set `CC' to the
1781 cross-compiler.
1782
1783 * The new function `fexecve' (only implemented on the GNU system) executes
1784 a program file given a file descriptor already open on the file.
1785 \f
1786 Version 1.07
1787
1788 * Brendan Kehoe has contributed most of a port to the DEC Alpha
1789 running OSF/1 (alpha-dec-osf1). He says it is 75% complete.
1790
1791 * You can set the variable `libprefix' in `configparms' to specify a prefix
1792 to be prepended to installed library files; this makes it easy to install
1793 the GNU C library to be linked as `-lgnuc' or whatever.
1794
1795 * The new `stpncpy' is a cross between `stpcpy' and `strncpy': It
1796 copies a limited number of characters from a string, and returns the
1797 address of the last character written.
1798
1799 * You no longer need to check for whether the installed `stddef.h' is
1800 compatible with the GNU C library. configure now checks for you.
1801
1802 * You can now define a per-stream `fileno' function to convert the
1803 stream's cookie into an integral file descriptor.
1804
1805 * ``malloc (0)'' no longer returns a null pointer. Instead, it
1806 allocates zero bytes of storage, and returns a unique pointer which
1807 you can pass to `realloc' or `free'. The behavior is undefined if
1808 you dereference this pointer.
1809
1810 * The C library now runs on Sony NEWS m68k machines running either
1811 NewsOS 3 or NewsOS 4.
1812
1813 * The new `syscall' function is a system-dependent primitive function
1814 for invoking system calls. It has the canonical behavior on Unix
1815 systems, including unreliable return values for some calls (such as
1816 `pipe', `fork' and `getppid').
1817
1818 * The error code `EWOULDBLOCK' is now obsolete; it is always defined
1819 to `EAGAIN', which is the preferred name. On systems whose kernels
1820 use two distinct codes, the C library now translates EWOULDBLOCK to
1821 EAGAIN in every system call function.
1822 \f
1823 Version 1.06
1824
1825 * The GNU C Library Reference Manual is now distributed with the library.
1826 `make dvi' will produce a DVI file of the printed manual.
1827 `make info' will produce Info files that you can read on line using C-h i
1828 in Emacs or the `info' program.
1829 Please send comments on the manual to bug-glibc-manual@gnu.org.
1830
1831 * The library now supports SVR4 on i386s (i386-unknown-sysv4).
1832
1833 * Brendan Kehoe has contributed a port to Sun SPARCs running Solaris 2.
1834
1835 * Jason Merrill has contributed a port to the Sequent Symmetry running
1836 Dynix version 3 (i386-sequent-dynix).
1837
1838 * The library has been ported to i386s running SCO 3.2.4 (also known as SCO
1839 ODT 2.0; i386-unknown-sco3.2.4) or SCO 3.2 (i386-unknown-sco3.2).
1840
1841 * New function `memory_warnings' lets you arrange to get warnings when
1842 malloc is running out of memory to allocate, like Emacs gives you.
1843
1844 * The C library now contains the relocating allocator used in Emacs 19 for
1845 its editing buffers. This allocator (ralloc) minimizes allocation
1846 overhead and fragmentation by moving allocated regions around whenever it
1847 needs to. You always refer to a ralloc'd region with a "handle" (a
1848 pointer to a pointer--an object of type `void **').
1849
1850 * There is a new `printf' format: `%m' gives you the string corresponding
1851 to the error code in `errno'.
1852
1853 * In `scanf' formats, you can now use `%as' or `%a[' to do the normal `%s'
1854 or `%[' conversion, but instead of filling in a fixed-sized buffer you
1855 pass, the `a' modifier says to fill in a `char **' you pass with a
1856 malloc'd string.
1857
1858 * The `fnmatch' function supports the new flag bits `FNM_LEADING_DIR' and
1859 `FNM_CASEFOLD'. `FNM_LEADING_DIR' lets a pattern like `foo*' match a
1860 name like `foo/bar'. `FNM_CASEFOLD' says to ignore case in matching.
1861
1862 * `mkstemp' is a traditional Unix function to atomically create and open a
1863 uniquely-named temporary file.
1864 \f
1865 Version 1.05
1866
1867 * The standard location for the file that says what the local timezone is
1868 has changed again. It is now `/usr/local/etc/localtime' (or more
1869 precisely, `${prefix}/etc/localtime') rather than `/etc/localtime'.
1870
1871 * The distribution no longer contains any files with names longer than 14
1872 characters.
1873
1874 * `struct ttyent' has two new flag bits: TTY_TRUSTED and TTY_CONSOLE.
1875 These are set by the new `trusted' and `console' keywords in `/etc/ttys'.
1876
1877 * New functions `ttyslot' and `syslog' from 4.4 BSD.
1878 \f
1879 Version 1.04
1880
1881 * The configuration process has changed quite a bit. The `configure'
1882 script is now used just like the configuration scripts for other GNU
1883 packages. The `sysdeps' directory hierarchy is much rearranged.
1884 The file `INSTALL' explains the new scheme in detail.
1885
1886 * The header files no longer need to be processed into ANSI C and
1887 traditional C versions. There is just one set of files to install, and
1888 it will work with ANSI or old C compilers (including `gcc -traditional').
1889
1890 * Brendan Kehoe and Ian Lance Taylor have ported the library to the
1891 MIPS DECStation running Ultrix 4.
1892
1893 * The Sun 4 startup code (crt0) can now properly load SunOS 4 shared libraries.
1894 Tom Quinn contributed the initial code. The GNU C library can NOT yet be
1895 made itself into a shared library.
1896
1897 * Yet further improved support for the i386, running 4.3 BSD-like systems
1898 (such as Mach 3 with the Unix single-server), or System V.
1899
1900 * New function `strncasecmp' to do case-insensitive string comparison
1901 with limited length.
1902
1903 * New function `strsep' is a reentrant alternative to `strtok'.
1904
1905 * New functions `scandir' and `alphasort' for searching directories.
1906
1907 * New function `setenv' is a better interface to `putenv'.
1908
1909 * Ian Lance Taylor has contributed an implementation of the SVID `ftw'
1910 function for traversing a directory tree.
1911
1912 * The GNU obstack package is now also part of the C library.
1913 The new function `open_obstack_stream' creates a stdio stream that
1914 writes onto an obstack; `obstack_printf' and `obstack_vprintf' do
1915 formatted output directly to an obstack.
1916
1917 * Miscellaneous new functions: reboot, nice, sigaltstack (4.4 BSD only),
1918 cfmakeraw, getusershell, getpass, swab, getttyent, seteuid, setegid.
1919
1920 * `FNM_FILE_NAME' is another name for `FNM_PATHNAME', used with `fnmatch'.
1921
1922 * The new functions `strfry' and `memfrob' do mysterious and wonderful
1923 things to your strings.
1924
1925 * There are some new test programs: test-fseek, testmb, and testrand.
1926
1927 * Some work has been done to begin porting the library to 4.4 BSD and Linux.
1928 These ports are not finished, but are a good starting place for really
1929 supporting those systems.
1930
1931 * `/etc/localtime' is now the standard location for the file that says what
1932 the local timezone is, rather than `/usr/local/lib/zoneinfo/localtime'.
1933 This follows the general principle that `/etc' is the place for all local
1934 configuration files.
1935
1936 * The C library header files now use `extern "C"' when used by the C++
1937 compiler, so the C library should now work with C++ code.
1938
1939 * The header file <bstring.h> is gone. <string.h> now declares bcopy,
1940 bcmp, bzero, and ffs. (Update: nowadays these functions are declared
1941 in <strings.h>.)
1942
1943 * Mike Haertel (of GNU e?grep and malloc fame) has written a new sorting
1944 function which uses the `merge sort' algorithm, and is said to be
1945 significantly faster than the old GNU `qsort' function. Merge sort is
1946 now the standard `qsort' function. The new algorithm can require a lot
1947 of temporary storage; so, the old sorting function is called when the
1948 required storage is not available.
1949
1950 * The C library now includes Michael Glad's Ultra Fast Crypt, which
1951 provides the Unix `crypt' function, plus some other entry points.
1952
1953 * The code and header files taken from 4.4 BSD have been updated with the
1954 latest files released from Berkeley.
1955 \f
1956 ----------------------------------------------------------------------
1957 Copyright information:
1958
1959 Copyright (C) 1992-2009, 2010, 2011 Free Software Foundation, Inc.
1960
1961 Permission is granted to anyone to make or distribute verbatim copies
1962 of this document as received, in any medium, provided that the
1963 copyright notice and this permission notice are preserved,
1964 thus giving the recipient permission to redistribute in turn.
1965
1966 Permission is granted to distribute modified versions
1967 of this document, or of portions of it,
1968 under the above conditions, provided also that they
1969 carry prominent notices stating who last changed them.
1970 \f
1971 Local variables:
1972 version-control: never
1973 fill-column: 76
1974 End: