| blob | e418a46269b196c26f4b42aaca3e6875ad6973e1 |
1 GNU C Library NEWS -- history of user-visible changes.
2 Copyright (C) 1992-2012 Free Software Foundation, Inc.
3 See the end for copying conditions.
5 Please send GNU C library bug reports via <http://sourceware.org/bugzilla/>
6 using `glibc' in the "product" field.
7 \f
8 Version 2.17.1
10 * The following bugs are resolved with this release:
11 15003, 15006, 15055, 15122, 15497, 15759.
13 \f
14 Version 2.17
16 * The following bugs are resolved with this release:
18 1349, 3439, 3479, 3665, 5044, 5246, 5298, 5400, 6530, 6677, 6778, 6808,
19 9685, 9914, 10014, 10038, 10114, 10631, 10873, 11438, 11607, 11638, 11741,
20 12140, 13013, 13412, 13542, 13601, 13603, 13604, 13629, 13679, 13696,
21 13698, 13717, 13741, 13759, 13761, 13763, 13881, 13939, 13950, 13952,
22 13966, 14042, 14047, 14090, 14150, 14151, 14152, 14154, 14157, 14166,
23 14173, 14195, 14197, 14237, 14246, 14251, 14252, 14283, 14298, 14303,
24 14307, 14328, 14331, 14336, 14337, 14347, 14349, 14368, 14376, 14417,
25 14447, 14459, 14476, 14477, 14501, 14505, 14510, 14516, 14518, 14519,
26 14530, 14532, 14538, 14543, 14544, 14545, 14557, 14562, 14568, 14576,
27 14579, 14583, 14587, 14595, 14602, 14610, 14621, 14638, 14645, 14648,
28 14652, 14660, 14661, 14669, 14672, 14683, 14694, 14716, 14719, 14743,
29 14767, 14783, 14784, 14785, 14793, 14796, 14797, 14801, 14803, 14805,
30 14807, 14811, 14815, 14821, 14822, 14824, 14828, 14831, 14833, 14835,
31 14838, 14856, 14863, 14865, 14866, 14868, 14869, 14871, 14872, 14879,
32 14889, 14893, 14898, 14914.
34 * Optimization of memcpy for MIPS.
36 * CVE-2011-4609 svc_run() produces high cpu usage when accept fails with
37 EMFILE has been fixed (Bugzilla #14889).
39 * The add-on ports collection is now distributed in the "ports" subdirectory
40 of the main GNU C Library distribution, rather than separately.
42 * Port to ARM AArch64 contributed by Linaro.
44 * Support for STT_GNU_IFUNC symbols added for s390 and s390x.
45 Optimized versions of memcpy, memset, and memcmp added for System z10 and
46 zEnterprise z196.
47 Implemented by Andreas Krebbel.
49 * The new function secure_getenv allows secure access to the environment,
50 returning NULL if running in a SUID/SGID process. This function replaces
51 the internal function __secure_getenv.
53 * SystemTap static probes have been added into the dynamic linker.
54 Implemented by Gary Benson.
56 * Optimizations of string functions strstr, strcasestr and memmem.
57 Implemented by Maxim Kuvyrkov.
59 * The minimum Linux kernel version that this version of the GNU C Library
60 can be used with is 2.6.16.
62 * Optimizations of string functions memchr, wcschr, wcscpy, and wcsrchr for
63 powerpc POWER7. Implemented by Will Schmidt.
65 * New configure option --disable-nscd builds the C library such that it
66 never attempts to contact the Name Service Caching Daemon (nscd).
67 New configure option --disable-build-nscd avoids building nscd itself;
68 this is the default if --disable-nscd is used.
70 * Improved support for cross-compilation, including cross-testing and
71 bootstrap builds without a previously built glibc.
73 * Several testsuite tests are now able to test multiple IFUNC variants of an
74 interface, rather than just testing the one that would be chooen by
75 default.
77 * New configure options --with-bugurl and --with-pkgversion, for
78 distributors to use to embed their bug-reporting and package version
79 information in --help and --version output.
81 * The ttyname and ttyname_r functions on Linux now fall back to searching for
82 the tty file descriptor in /dev/pts or /dev if /proc is not available. This
83 allows creation of chroots without the procfs mounted on /proc.
85 * The `crypt' function now fails if passed salt bytes that violate the
86 specification for those values. On Linux, the `crypt' function will
87 consult /proc/sys/crypto/fips_enabled to determine if "FIPS mode" is
88 enabled, and fail on encrypted strings using the MD5 or DES algorithm
89 when the mode is enabled.
91 * The `clock_*' suite of functions (declared in <time.h>) is now available
92 directly in the main C library. Previously it was necessary to link with
93 -lrt to use these functions. This change has the effect that a
94 single-threaded program that uses a function such as `clock_gettime' (and
95 is not linked with -lrt) will no longer implicitly load the pthreads
96 library at runtime and so will not suffer the overheads associated with
97 multi-thread support in other code such as the C++ runtime library.
99 * New locales: ayc_PE, doi_IN, ia_FR, mni_IN, nhn_MX, niu_NU, niu_NZ,
100 sat_IN, and szl_PL.
101 \f
102 Version 2.16
104 * The following bugs are resolved with this release:
106 174, 208, 350, 369, 411, 706, 766, 887, 2074, 2541, 2547, 2548, 2550,
107 2551, 2552, 2553, 2554, 2562, 2563, 2565, 2566, 2570, 2576, 2636, 2678,
108 3335, 3440, 3748, 3768, 3866, 3868, 3906, 3976, 3992, 4026, 4108, 4596,
109 4822, 5077, 5461, 5805, 5993, 6471, 6486, 6578, 6649, 6730, 6770, 6794,
110 6884, 6890, 6894, 6895, 6907, 6911, 6959, 7064, 9739, 9902, 10110, 10135,
111 10140, 10153, 10210, 10254, 10346, 10375, 10545, 10716, 10846, 11174,
112 11261, 11322, 11365, 11451, 11494, 11521, 11677, 11837, 11959, 12047,
113 12097, 12193, 12194, 12297, 12298, 12301, 12340, 12354, 12416, 12495,
114 13058, 13223, 13361, 13525, 13526, 13527, 13528, 13529, 13530, 13531,
115 13532, 13533, 13547, 13551, 13552, 13553, 13555, 13556, 13559, 13563,
116 13566, 13576, 13579, 13583, 13592, 13594, 13613, 13618, 13637, 13656,
117 13658, 13673, 13691, 13695, 13704, 13705, 13706, 13718, 13726, 13738,
118 13739, 13743, 13750, 13758, 13760, 13761, 13775, 13786, 13787, 13792,
119 13806, 13824, 13840, 13841, 13844, 13846, 13848, 13851, 13852, 13854,
120 13871, 13872, 13873, 13879, 13882, 13883, 13884, 13885, 13886, 13892,
121 13895, 13908, 13910, 13911, 13912, 13913, 13914, 13915, 13916, 13917,
122 13918, 13919, 13920, 13921, 13922, 13923, 13924, 13926, 13927, 13928,
123 13938, 13941, 13942, 13954, 13955, 13956, 13963, 13967, 13968, 13970,
124 13973, 13979, 13983, 13986, 13996, 14012, 14027, 14033, 14034, 14036,
125 14040, 14043, 14044, 14048, 14049, 14050, 14053, 14055, 14059, 14064,
126 14075, 14080, 14083, 14103, 14104, 14109, 14112, 14117, 14122, 14123,
127 14134, 14153, 14183, 14188, 14199, 14210, 14218, 14229, 14241, 14273,
128 14277, 14278.
130 * Support for the x32 ABI on x86-64 added. The x32 target is selected by
131 configuring glibc with:
132 BUILD_CC='gcc' CC='gcc -mx32' CXX='g++ -mx32'
133 Visit <http://sites.google.com/site/x32abi/> for more x32 ABI info.
134 Implemented by H.J. Lu.
136 * ISO C11 support:
138 + define static_assert
140 + do not declare gets
142 + declare at_quick_exit and quick_exit also for ISO C11
144 + aligned_alloc. NB: The code is deliberately allows the size parameter
145 to not be a multiple of the alignment. This is a moronic requirement
146 in the standard but it is only a requirement on the caller, not the
147 implementation.
149 + timespec_get added
151 + uchar.h support added
153 + CMPLX, CMPLXF, CMPLXL added
155 Implemented by Ulrich Drepper.
157 * Support for the IA-64 has been moved to ports.
159 * Remove support for anything but ELF binary format
161 * Checking versions of poll, ppoll added.
162 Implemented by Ulrich Drepper.
164 * More generic and 64-bit performance optimizations to math functions.
165 Implemented by Ulrich Drepper.
167 * New configure option --enable-obsolete-rpc makes the deprecated RPC
168 headers and functions available at compile time as they were before
169 version 2.14. This option will be removed at some time in the future
170 after the TI-RPC library becomes fully sufficient for the needs of
171 existing applications.
173 * Compatibility code for Linux kernel versions before 2.4 has been removed.
174 Note that glibc is not expected to work with any Linux kernel version
175 before 2.6.
177 * New header <sys/auxv.h> and function getauxval allowing easy access to
178 the AT_* key-value pairs passed from the Linux kernel. The header also
179 defines the HWCAP_* bits associated with the AT_HWCAP key.
181 * New locales: mag_IN
183 * New configure option --enable-systemtap builds SystemTap static probes
184 into libc for setjmp and longjmp and into libpthread for various operations.
185 So far the setjmp/longjmp probes and some of the libpthread probes are
186 provided only for i*86 and x86_64.
187 Implemented by Roland McGrath and Rayson Ho.
189 * Optimized expf for x86-32 and x86-64. Implemented by Liubov Dmitrieva.
191 * More optimized functions for PowerPC. Implemented by Adhemerval Zanella
192 and Will Schmidt.
194 * More optimized functions for SPARC. Implemented by David S. Miller.
196 * Improved support for cross-compilation, especially bootstrap builds
197 without a previously built glibc.
199 * Ports for the TILE-Gx and TILEPro families of processors. Contributed by
200 Chris Metcalf from Tilera.
202 * Support for the old ARM ABI has been removed from ports. Only the EABI is
203 now supported for ARM processors.
205 * The hard-float variant of the ARM EABI now uses /lib/ld-linux-armhf.so.3
206 as the name of the dynamic linker, to distinguish it from the
207 /lib/ld-linux.so.3 dynamic linker used for the base EABI.
209 * Support for CRIS has been removed from ports.
211 * A new class of installed header has been documented for low-level
212 platform-specific functionality. PowerPC added the first instance with a
213 function to provide time base register access. Contributed by Tulio
214 Magno Quites Machado Filho.
216 * ix86 configurations now install header files that are consistent with
217 what x86-64 configurations install. These same header files can be used
218 for -m32, -m64, or -mx32 builds.
219 Contributed by H.J. Lu.
221 * Math library bug fixes. A thorough audit of all open math library bugs was
222 conducted by Joseph Myers. Significant progress was made on many math
223 library bugs resulting in more accurate exceptions and function results.
224 Many thanks to all those that contributed including Andreas Jaeger for his
225 patch review and work on the x87 trigonometric instruction issues.
227 * Timezone data is no longer installed. Timezone-related binaries and scripts
228 will continue to be installed. Users should obtain their timezone data from
229 their distribution provider or from the tzdata package at
230 <ftp://munnari.oz.au/pub/>.
231 \f
232 Version 2.15
234 * The following bugs are resolved with this release:
236 6779, 6783, 9696, 10103, 10709, 11589, 11929, 12403, 12786, 12840, 12847,
237 12868, 12852, 12874, 12885, 12892, 12906, 12907, 12922, 12935, 12962,
238 13007, 13021, 13061, 13062, 13067, 13068, 13085, 13088, 13090, 13092,
239 13096, 13114, 13118, 13123, 13134, 13138, 13147, 13150, 13166, 13179,
240 13185, 13189, 13192, 13268, 13276, 13282, 13291, 13305, 13328, 13335,
241 13337, 13344, 13358, 13367, 13413, 13416, 13423, 13439, 13446, 13472,
242 13484, 13506, 13515, 13523, 13524, 13538, 13540
244 * New program pldd to list loaded object of a process
245 Implemented by Ulrich Drepper.
247 * Add nss_db support back to glibc. No more dependency on Berkeley db
248 and support for initgroups lookups.
249 Implemented by Ulrich Drepper.
251 * Optimized strcpy, strncpy, stpcpy, stpncpy for SSE2 and SSSE3 on x86-32.
252 Contributed by HJ Lu.
254 * Improved strcpy, strncpy, stpcpy, stpncpy for SSE2 and SSSE3 on x86-64.
255 Contributed by HJ Lu.
257 * Optimized strcat, strncat on x86-64 and optimized wcscmp, wcslen, strnlen
258 on x86-32 and x86-64.
259 Contributed by Liubov Dmitrieva.
261 * Optimized strchr and strrchr for SSE on x86-32.
262 Contributed by Liubov Dmitrieva.
264 * Optimized memchr, memrchr, rawmemchr, memcmp, wmemcmp, wcschr, wcscpy
265 for x86-64 and x86-32.
266 Contributed by Liubov Dmitrieva.
268 * New interfaces: scandirat, scandirat64
269 Implemented by Ulrich Drepper.
271 * Checking versions of FD_SET, FD_CLR, and FD_ISSET added.
272 Implemented by Ulrich Drepper.
274 * nscd now also caches the netgroup database.
275 Implemented by Ulrich Drepper.
277 * Integrate libm with gcc's -ffinite-math-only option.
278 Implemented by Ulrich Drepper.
280 * Lots of generic, 64-bit, and x86-64-specific performance optimizations
281 to math functions. Implemented by Ulrich Drepper.
283 * Optimized strcasecmp and strncasecmp for AVX on x86-64.
284 Implemented by Ulrich Drepper.
286 * New Linux interfaces: process_vm_readv, process_vm_writev
288 * Optimized strcasecmp and strncasecmp for SSSE3 and SSE4.2 on x86-32.
289 Implemented by Ulrich Drepper.
291 * Optimized nearbyint and strcasecmp for PPC.
292 Implemented by Adhemerval Zanella.
294 * New locales: bho_IN, unm_US, es_CU, ta_LK
295 \f
296 Version 2.14
298 * The following bugs are resolved with this release:
300 386, 6420, 7101, 9730, 9732, 9809, 10138, 10149, 10157, 11099, 11257,
301 11258, 11487, 11532, 11558, 11578, 11634, 11653, 11668, 11697, 11724,
302 11781, 11799, 11820, 11837, 11857, 11869, 11892, 11895, 11901, 11945,
303 11947, 11952, 11987, 12052, 12083, 12158, 12178, 12200, 12346, 12350,
304 12393, 12420, 12432, 12445, 12449, 12453, 12454, 12460, 12469, 12489,
305 12509, 12510, 12511, 12518, 12527, 12541, 12545, 12551, 12582, 12583,
306 12587, 12597, 12601, 12611, 12625, 12626, 12631, 12650, 12653, 12655,
307 12660, 12671, 12681, 12684, 12685, 12711, 12713, 12714, 12717, 12723,
308 12724, 12734, 12738, 12746, 12766, 12775, 12777, 12782, 12788, 12792,
309 12795, 12811, 12813, 12814, 12841
311 * The RPC implementation in libc is obsoleted. Old programs keep working
312 but new programs cannot be linked with the routines in libc anymore.
313 Programs in need of RPC functionality must be linked against TI-RPC.
314 The TI-RPC implementation is IPv6 enabled and there are other benefits.
316 Visible changes of this change include (obviously) the inability to link
317 programs using RPC functions without referencing the TI-RPC library and the
318 removal of the RPC headers from the glibc headers.
319 Implemented by Ulrich Drepper.
321 * New Linux interfaces: clock_adjtime, name_to_handle_at, open_by_handle_at,
322 syncfs, setns, sendmmsg
324 * New locales: os_RU, bem_ZA, en_ZA, ff_SN, sw_KE, sw_TZ, lb_LU, wae_CH,
325 yue_HK, lij_IT, mhr_RU
327 * New encodings: CP770, CP771, CP772, CP773, CP774
329 * New program sotruss to trace calls through PLTs
330 Implemented by Ulrich Drepper.
332 * The malloc hook implementation is marked deprecated and will be removed
333 from the default implementation in the next version. The design never
334 worked ever since the introduction of threads. Even programs which do
335 not create threads themselves can use multiple threads created internally.
336 \f
337 Version 2.13
339 * The following bugs are resolved with this release:
341 3268, 6812, 7066, 10085, 10484, 10563, 10851, 11149, 11155, 11577, 11611,
342 11640, 11655, 11701, 11840, 11856, 11883, 11903, 11904, 11968, 11979,
343 12005, 12037, 12067, 12077, 12078, 12092, 12093, 12107, 12108, 12113,
344 12140, 12159, 12167, 12191, 12194, 12201, 12204, 12205, 12207, 12348,
345 12378, 12394, 12397
347 * New Linux interfaces: prlimit, prlimit64, fanotify_init, fanotify_mark
349 * POWER7 optimizations: memset, memcmp, strncmp
351 * New optimized string functions for x86-64: strnlen (SSE2),
352 strcasecmp (SSE2, SSSE3, SSE4.2), strncasecmp (SSE2, SSSE3, SSE4.2)
353 Implemented by Ulrich Drepper.
354 \f
355 Version 2.12
357 * The following bugs are resolved with this release:
359 3662, 4457, 5553, 10162, 10401, 10414, 10554, 10824, 10864, 10915, 10918,
360 10936, 10939, 10958, 10968, 10969, 10972, 10992, 11000, 11001, 11007,
361 11010, 11027, 11039, 11040, 11041, 11043, 11046, 11056, 11070, 11093,
362 11115, 11120, 11125, 11126, 11127, 11134, 11141, 11149, 11183, 11184,
363 11185, 11186, 11187, 11188, 11189, 11190, 11191, 11192, 11193, 11194,
364 11200, 11230, 11235, 11242, 11254, 11258, 11271, 11272, 11276, 11279,
365 11287, 11292, 11319, 11332, 11333, 11387, 11389, 11390, 11394, 11397,
366 11410, 11438, 11449, 11470, 11471, 11520, 11537, 11538, 11571
368 * New interfaces: pthread_getname_np, pthread_setname_np
370 * New Linux interface: recvmmsg
372 * STT_GNU_IFUNC implemented for Sparc by David Miller.
374 * The dynamic linker now recognizes supported ABI versions from the
375 EI_ABIVERSION field in the ELF header.
376 Implemented by Ulrich Drepper.
378 * New NIS mode selector ADJUNCT_AS_SHADOW. The passwd.adjunct.byname table
379 will not be used to fill in password fields in the passwd.byname replies.
380 Instead it is used to synthesize the shadow.byname table, should it be
381 missing. This is a useful mode in some installations involving Solaris.
382 Implemented by Ulrich Drepper.
384 * New locales: kok_IN, sq_MK, cv_RU
385 \f
386 Version 2.11
388 * The following bugs are resolved with this release:
390 3270, 7094, 9924, 9986, 10011, 10085, 10107, 10159, 10162, 10166, 10183,
391 10195, 10196, 10200, 10203, 10207, 10211, 10213, 10217, 10221, 10229,
392 10262, 10286, 10312, 10315, 10319, 10349, 10360, 10391, 10402, 10416,
393 10418, 10422, 10425, 10446, 10448, 10452, 10540, 10553, 10560, 10564,
394 10609, 10643, 10692, 10713, 10717, 10730, 10731, 10742, 10780, 10784,
395 10789, 10817, 10823, 10840, 10847
397 * New interfaces: execvpe, pthread_sigqueue, mkstemps, mkstemps64, mkostemps,
398 mkostemps64
399 Implemented by Ulrich Drepper.
401 * Checking version of longjmp added that fails if an uninitialized stack
402 frame would be created. Implemented by Ulrich Drepper.
404 * STT_GNU_IFUNC is now supported in static executables.
405 Implemented by H.J. Lu.
407 * STT_GNU_IFUNC implemented for PPC by Alan Modra.
409 * New optimized string functions for x86-64: strstr, strcasestr, memcmp,
410 strcspn, strpbrk, strspn, strcpy, stpcpy, strncpy, strcmp (SSE2, SSE4.2),
411 strncmp (SSE2, SSE4.2), strchr (SSE4.2), strrchr (SSE4.2).
412 Contributed by H.J. Lu.
414 strlen, rawmemchr, strcmp (SSSE3), strncmp (SSSE3).
415 Implemented by Ulrich Drepper.
417 * New optimized string functions for x86: strlen, strcspn, strspn, strpbrk,
418 strstr, strcasestr.
419 Contributed by H.J. Lu.
421 * Support for fma instruction in AVX on x86-64.
422 Implemented by H.J. Lu and Ulrich Drepper.
424 * AVX support in x86-64 auditing support in ld.so.
425 Implemented by H.J. Lu.
427 * STB_GNU_UNIQUE support added.
428 Implemented by Ulrich Drepper.
430 * Implement second fallback mode for optimized DNS lookup for even more
431 broken environments. If two requests from the same port are not
432 handled correctly close the socket and open a new one before sending
433 the second request. The 'single-request-reopen' option in /etc/resolv.conf
434 can be used to select this mode right away, instead of rediscovering the
435 necessity is every process again.
436 Implemented by Ulrich Drepper.
438 * New resolver flag RES_USE_DNSSEC to enable use of verified lookup.
439 Implemented by Adam Tkac.
441 * Optimized iconv conversions for S390x.
442 Implemented by Andreas Krebbel.
444 * Using condvars with PI mutexes is now more efficient due to kernel
445 support for requeueing to PI futexes. NPTL support added for x86-64.
446 Implemented by Ulrich Drepper.
448 * New locales: ps_AF, my_MM
449 \f
450 Version 2.10
452 * The following bugs are resolved with this release:
454 697, 5381, 5807, 6411, 6545, 7040, 7058, 7067, 7080, 7083, 7095, 7098,
455 9677, 9694, 9697, 9701, 9704, 9705, 9706, 9720, 9726, 9730, 9733, 9736,
456 9741, 9750, 9753, 9759, 9781, 9791, 9793, 9823, 9833, 9844, 9880, 9881,
457 9891, 9893, 9895, 9913, 9916, 9920, 9948, 9955, 9957, 9963, 9985, 10052,
458 10069, 10086, 10087, 10090, 10092, 10093, 10100, 10118, 10128
460 * New interfaces: preadv, preadv64, pwritev, pwritev64, malloc_info
461 Implemented by Ulrich Drepper.
463 * New Linux interfaces: accept4, fallocate, fallocate64.
464 Implemented by Ulrich Drepper.
466 * Correct declarations of string function when used in C++ code. This
467 could lead to compile errors for invalid C++ code.
469 * XPG7/POSIX 2008 compilation environment. Many GNU-specific functions are
470 now in POSIX.
472 * New POSIX 2008 interface: psiginfo
473 Implemented by Ulrich Drepper.
475 * New ISO C++1x interfaces: quick_exit, at_quick_exit
476 Implemented by Ulrich Drepper.
478 * Support for selecting between multiple function definitions at runtime
479 using STT_GNU_IFUNC symbols. Implemented by Ulrich Drepper.
481 * The libcrypt library can now use the hash function implementations in
482 NSS. Implemented by Ulrich Drepper.
484 * The malloc implementation can be compiled to be less memory efficient
485 but higher performing in multi-threaded programs.
486 Implemented by Ulrich Drepper.
488 * New locales: nan_TW@latin, ks_IN
490 * Faster strlen, strchr, strchrnul, strrchr, memchr, and rawmemchr for x86-64.
491 Implemented by Ulrich Drepper.
493 * Extended printf hook support. It is possible to use user-defined types
494 and extend existing format specifiers.
495 Implemented by Ulrich Drepper.
497 * Handling for group shadow files has been added.
498 Implemented by Ulrich Drepper.
500 * DNS IPv4-IPv6 parallel lookup now deals better with broken DNS
501 servers (the case, e.g., for some people using the built-in DNS
502 server in ADSL modems/routers). There is a once-per-process timeout
503 in case of a broken server. To avoid it, users can run nscd or put
504 'options single-request' in /etc/resolv.conf.
505 Implemented by Ulrich Drepper.
506 \f
507 Version 2.9
509 * The following bugs are resolved with this release:
511 3406, 5209, 5210, 5381, 5794, 5814, 5911, 6428, 6438, 6442, 6447, 6461,
512 6472, 6505, 6544, 6589, 6612, 6634, 6653, 6654, 6657, 6698, 6712, 6713,
513 6719, 6723, 6724, 6740, 6763, 6771, 6790, 6791, 6817, 6824, 6839, 6843,
514 6845, 6856, 6857, 6860, 6867, 6875, 6919, 6920, 6942, 6947, 6955, 6966,
515 6968, 6974, 6980, 6995, 7008, 7009, 7029
517 * Unified lookup for getaddrinfo: IPv4 and IPv6 addresses are now looked
518 up at the same time. Implemented by Ulrich Drepper.
520 * TLS descriptors for LD and GD on x86 and x86-64.
521 Implemented by Alexandre Oliva.
523 * getaddrinfo now handles DCCP and UDPlite.
524 Implemented by Ulrich Drepper.
526 * New fixed-size conversion macros: htobe16, htole16, be16toh, le16toh,
527 htobe32, htole32, be32toh, le32toh, htobe64, htole64, be64toh, le64toh.
528 Implemented by Ulrich Drepper.
530 * New implementation of memmem, strstr, and strcasestr which is O(n).
531 Implemented by Eric Blake.
533 * New Linux interfaces: inotify_init1, dup3, epoll_create1, pipe2
535 * Implement "e" option for popen to open file descriptor with the
536 close-on-exec flag set. Implemented by Ulrich Drepper.
538 * Implement "b" mode for fmemopen. In this mode writes writes don't
539 implicitly add a NUL byte and seeks from the end of the buffer really
540 use the buffer end, not the string length as the basis.
541 Implemented by Ulrich Drepper.
543 * Many functions, exported and internal, now atomically set the close-on-exec
544 flag when run on a sufficiently new kernel. Implemented by Ulrich Drepper.
546 * Sorting rules for some Indian languages (Kannada, Gurumukhi, Telugu,
547 Sinhala)
548 Implemented by Pravin Satpute.
550 * New locales: sd_IN, sd_IN@devanagari, ks_IN@devanagari, ht_HT, en_AG, nl_AW.
551 \f
552 Version 2.8
554 * The following bugs are resolved with this release:
556 2549, 3112, 4314, 4407, 4997, 5012, 5040, 5112, 5204, 5208, 5209, 5220,
557 5222, 5224, 5225, 5237, 5238, 5240, 5245, 5277, 5346, 5375, 5378, 5382,
558 5424, 5427, 5428, 5435, 5436, 5439, 5441, 5442, 5443, 5451, 5452, 5454,
559 5455, 5463, 5464, 5465, 5475, 5477, 5478, 5520, 5541, 5545, 5553, 5600,
560 5602, 5607, 5614, 5627, 5628, 5736, 5737, 5741, 5753, 5760, 5762, 5768,
561 5774, 5777, 5778, 5779, 5786, 5790, 5818, 5854, 5857, 5903, 5939, 5979,
562 5983, 5995, 5998, 6004, 6007, 6020, 6021, 6024, 6040, 6042
564 * New locales: bo_CN, bo_IN, shs_CA.
566 * New encoding: HP-ROMAN9, HP-GREEK8, HP-THAI8, HP-TURKISH8.
568 * Sorting rules for some Indian languages (Devanagari and Gujarati).
569 Implemented by Pravin Satpute.
571 * IPV6 addresses in /etc/resolv.conf can now have a scope ID
573 * nscd caches now all timeouts for DNS entries
574 Implemented by Ulrich Drepper.
576 * nscd is more efficient and wakes up less often.
577 Implemented by Ulrich Drepper.
579 * More checking functions: asprintf, dprintf, obstack_printf, vasprintf,
580 vdprintf, and obstack_vprintf.
581 Implemented by Jakub Jelinek.
583 * Faster memset for x86-64.
584 Implemented by Harsha Jagasia and H.J. Lu.
586 * Faster memcpy on x86.
587 Implemented by Ulrich Drepper.
589 * ARG_MAX is not anymore constant on Linux. Use sysconf(_SC_ARG_MAX).
590 Implemented by Ulrich Drepper.
592 * Faster sqrt and sqrtf implemention for some PPC variants.
593 Implemented by Steven Munroe.
594 \f
595 Version 2.7
597 * The following bugs are resolved with this release:
599 4125, 4126, 4178, 4359, 4407, 4512, 4514, 4525, 4554, 4556, 4557, 4566,
600 4582, 4586, 4588, 4599, 4610, 4647, 4702, 4705, 4726, 4745, 4772, 4773,
601 4775, 4776, 4792, 4813, 4814, 4816, 4833, 4858, 4860, 4896, 4905, 4925,
602 4936, 4937, 4938, 4941, 4946, 4963, 4972, 5010, 5028, 5043, 5058, 5063,
603 5071, 5103, 5104, 5112, 5113, 5184, 5186
605 * More checking functions: fread, fread_unlocked, open*, mq_open.
606 Implemented by Jakub Jelinek and Ulrich Drepper.
608 * Extend fortification to C++. Implemented by Jakub Jelinek.
610 * Implement 'm' modifier for scanf. Add stricter C99/SUS compliance
611 by not recognizing 'a' as a modifier when those specs are requested.
612 Implemented by Jakub Jelinek.
614 * PPC optimizations to math and string functions.
615 Implemented by Steven Munroe.
617 * New interfaces: mkostemp, mkostemp64. Like mkstemp* but allow additional
618 options to be passed. Implemented by Ulrich Drepper.
620 * More CPU set manipulation functions. Implemented by Ulrich Drepper.
622 * New Linux interfaces: signalfd, eventfd, eventfd_read, and eventfd_write.
623 Implemented by Ulrich Drepper.
625 * Handle private futexes in the NPTL implementation.
626 Implemented by Jakub Jelinek and Ulrich Drepper.
628 * Add support for O_CLOEXEC. Implement in Hurd. Use throughout libc.
629 Implemented by Roland McGrath and Ulrich Drepper.
631 * Linux/x86-64 vDSO support. Implemented by Ulrich Drepper.
633 * SHA-256 and SHA-512 based password encryption.
634 Implemented by Ulrich Drepper.
636 * New locales: ber_DZ, ber_MA, en_NG, fil_PH, fur_IT, fy_DE, ha_NG, ig_NG,
637 ik_CA, iu_CA, li_BE, li_NL, nds_DE, nds_NL, pap_AN, sc_IT, tk_TM, ug_CN,
638 yo_NG.
640 + New iconv modules: MAC-CENTRALEUROPE, ISO-8859-9E, KOI8-RU.
641 Implemented by Ulrich Drepper.
642 \f
643 Version 2.6
645 * The following bugs are resolved with this release:
647 3156, 3213, 3285, 3291, 3306, 3313, 3320, 3322, 3325, 3326, 3334, 3348,
648 3352, 3363, 3369, 3426, 3427, 3429, 3451, 3458, 3465, 3480, 3483, 3493,
649 3514, 3515, 3559, 3632, 3664, 3673, 3674, 3745, 3747, 3818, 3840, 3842,
650 3851, 3855, 3884, 3885, 3902, 3905, 3919, 3944, 3954, 3955, 3957, 3991,
651 3995, 3996, 4024, 4040, 4069, 4070, 4074, 4076, 4096, 4101, 4102, 4114,
652 4130, 4131, 4181, 4276, 4306, 4342, 4344, 4349, 4364, 4368, 4381, 4392,
653 4403, 4405, 4406, 4411, 4438, 4439, 4455, 4456, 4465, 4512, 4514, 4586,
654 4702, 4858
656 * New Linux interfaces: epoll_pwait, sched_getcpu.
658 * New generic interfaces: strerror_l.
660 * nscd can now cache the services database. Implemented by Ulrich Drepper.
661 \f
662 Version 2.5
664 * The following bugs are resolved with this release:
666 39, 68, 192, 352, 388, 531, 935, 1006, 1201, 1203, 1386, 1782, 1783, 1784,
667 1785, 1786, 1787, 1951, 1974, 1996, 2072, 2098, 2125, 2134, 2158, 2182,
668 2349, 2376, 2386, 2389, 2415, 2418, 2420, 2423, 2450, 2451, 2466, 2472,
669 2473, 2477, 2498, 2499, 2501, 2502, 2505, 2507, 2508, 2509, 2517, 2526,
670 2569, 2571, 2592, 2611, 2625, 2632, 2644, 2662, 2680, 2683, 2684, 2693,
671 2695, 2703, 2734, 2751, 2764, 2766, 2775, 2792, 2821, 2823, 2832, 2841,
672 2843, 2883, 2892, 2908, 2914, 2926, 2961, 2978, 2980, 2987, 2997, 2998,
673 3013, 3018, 3034, 3040, 3044, 3123, 3124, 3137, 3138, 3143, 3155, 3189,
674 3225, 3251, 3252, 3253, 3273
676 * For Linux, the sorting of addresses returned by getaddrinfo now also
677 handles rules 3, 4, and 7 from RFC 3484. I.e., all rules are handled.
678 Implemented by Ulrich Drepper.
680 * Allow system admin to configure getaddrinfo with the /etc/gai.conf file.
681 Implemented by Ulrich Drepper.
683 * New Linux interfaces: splice, tee, sync_file_range, vmsplice.
685 * New iconv module for MIK. Contributed by Alexander Shopov.
687 * For sites with broken group and/or passwd database, the auto-propagate
688 option of nscd can prevent creating ID lookup entries from the results
689 of a name lookup and vice versa. This usually is no problem but some
690 site might have problems with the default behavior.
691 Implemented by Ulrich Drepper.
693 * Iterating over entire database in NIS can be slow. With the
694 SETENT_BATCH_READ option in /etc/default/nss a system admin can decide
695 to trade time for memory. The entire database will be read at once.
696 Implemented by Ulrich Drepper.
698 * The interfaces introduced in RFC 3542 have been implemented by
699 Ulrich Drepper.
701 * Support for the new ELF hash table format was added by Ulrich Drepper.
703 * Support for priority inheritance mutexes added by Jakub Jelinek and
704 Ulrich Drepper.
706 * Support for priority protected mutexes added by Jakub Jelinek.
708 * New locales: nr_ZA, pa_PK, ca_AD, ca_FR, ca_IT, el_CY, tr_CY, as_IN,
709 or_IN, csb_PL, fy_NL, sr_ME.
710 \f
711 Version 2.4
713 * More overflow detection functions.
715 * New iconv converters for IBM1025, IBM1122, IBM1137, IBM1153,
716 IBM1154, IBM1155, IBM1156, IBM1157, and IBM1158 contributed by Jiro Sekiba.
718 More converters for IBM803, IBM901, IBM902, IBM921, IBM1008, IBM1097,
719 IBM1112, IBM1123, IBM1130, IBM1140, IBM1141, IBM1142, IBM1143, IBM1144,
720 IBM1145, IBM1146, IBM1147, IBM1148, IBM1149, IBM1166, IBM1167, IBM4517,
721 IBM4899, IBM4909, IBM4971, IBM5347, IBM9030, IBM9066, IBM9448, IBM12712,
722 IBM16804, IBM1364, IBM1371, IBM1388, IBM1390, and IBM1399 contributed
723 by Masahide Washizawa.
725 * It is now possible to install audit libraries for the dynamic linker using
726 LD_AUDIT. Implemented by Ulrich Drepper.
728 * The LinuxThreads add-on, providing pthreads on Linux 2.4 kernels, is no
729 longer supported. The new NPTL implementation requires Linux 2.6 kernels.
730 For a libc and libpthread that works well on Linux 2.4 kernels, we
731 recommend using the stable 2.3 branch.
733 * The new function open_wmemstream acts like open_memstream,
734 but uses a wchar_t wide character buffer.
736 * The new function ppoll is an improved version of poll, similar to pselect.
738 * New interfaces: fdopendir, openat, fstatat, fchmodat, fchownat,
739 futimesat, faccessat, mkdirat, mkfifoat, mknodat,
740 renameat, unlinkat, linkat, symlinkat, readlinkat.
742 * New Linux kernel system calls: unshare,
743 inotify_init, inotify_add_watch, inotify_rm_watch.
745 * The euidaccess function is now also known by the alias eaccess,
746 for compatibility with some other systems.
748 * Timezone data updated to 2006b version.
749 \f
750 Version 2.3.6
752 * The following bugs are resolved with this release:
754 38, 253, 549, 622, 653, 721, 758, 851, 877, 915, 934, 955, 961,
755 1016, 1037, 1076, 1079, 1080, 1081, 1082, 1083, 1084, 1085, 1086,
756 1087, 1088, 1090, 1091, 1092, 1093, 1094, 1095, 1096, 1097, 1098,
757 1099, 1100, 1101, 1102, 1103, 1104, 1105, 1106, 1107, 1108, 1109,
758 1110, 1111, 1112, 1113, 1125, 1137, 1138, 1249, 1250, 1251, 1252,
759 1253, 1254, 1350, 1358, 1394, 1438, 1498, 1534
761 Visit <http://sources.redhat.com/bugzilla/> for the details of each bug.
763 * As of this release, GCC 4 can be used to compile the C Library.
765 * Timezone data updated to 2005m version.
766 \f
767 Version 2.3.5
769 * The following bugs are resolved with this release:
771 284, 592, 602, 626, 633, 640, 650, 661, 671, 681, 693, 700, 710, 719,
772 722, 723, 725, 726, 727, 728, 729, 730, 731, 732, 733, 734, 735, 736,
773 737, 738, 739, 740, 741, 742, 743, 744, 745, 765, 767, 768, 769, 776,
774 777, 787, 821, 822, 823, 825
776 Visit <http://sources.redhat.com/bugzilla/> for the details of each bug.
777 \f
778 Version 2.3.4
780 * Support for RFC 3678. Real implementations exist only for Linux so far.
781 Implemented by Ulrich Drepper.
783 * nscd can now cache entries persistently. Expiring entries are reloaded.
784 For speedups the cache can be shared in memory with client processes.
785 Implemented by Ulrich Drepper.
787 * nscd can now perform SELinux checks.
788 Implemented by Matthew Rickard <mjricka@epoch.ncsc.mil>.
790 * getaddrinfo queries are now cached. Canonical name lookup is performed
791 efficiently.
792 Implemented by Ulrich Drepper.
794 * The nothrow function attribute is used when headers are used by gcc when
795 compiling C code. This can avoid significant amounts of exception
796 handling data.
798 * The malloc functions perform more error checking and are stricter when
799 it comes to reacting on errors. The default action is to terminate
800 the process after showing an error message. Implemented by Ulrich Drepper.
802 * Reverse lookups of IPv6 addresses does not use bit string or .ip6.int
803 lookups anymore unless explicitly requested. Implemented by Ulrich Drepper.
805 * Namespaces in ld.so are implemented. DSOs can be loaded in separate
806 namespaces using the new function dlmopen(). This feature is of course,
807 like most other dynamic loading functionality, not available in statically
808 linked applications. Implemented by Ulrich Drepper.
810 * Low-overhead boundary checking variants of string and some stdio functions
811 were added. These are to be used in conjunction with a gcc patch by
812 Jakub Jelinek which adds calls to these functions if possible.
813 Implemented by Jakub Jelinek and Ulrich Drepper.
815 * Old code for several operating systems and machine architectures that
816 have not been in working condition in a long time have been removed from
817 the main source tree maintained by the GNU C Library's maintainers.
818 These files are now reside in the separate `ports' source module
819 that is usable as an add-on when building the library.
820 \f
821 Version 2.3.3
823 * New functions `dladdr1' and `dlinfo' in <dlfcn.h> provide more ways to
824 interrogate the dynamic linker, compatible with the Solaris interface.
826 * ELF thread-local storage support (TLS) now works on PowerPC and PowerPC64;
827 implemented by Paul Mackerras, Steven Munroe, and Roland McGrath.
829 * getifaddrs now uses the netlink interface on Linux to get its information.
830 Implemented by Thorsten Kukuk.
832 * getaddrinfo now implements AI_V4MAPPED, AI_ALL, and AI_ADDRCONF.
833 Implemented by Ulrich Drepper.
835 * support for non-executable stacks on x86 has been added. Changes mostly
836 by Roland McGrath.
838 * regex is now much faster for multibyte locales. Changes by Jakub Jelinek
839 and Ulrich Drepper.
841 * getaddrinfo now performs destination address selection according to
842 RFC 3484.
843 \f
844 Version 2.3.2
846 * Thread-safe interfaces for many functions that access locale data
847 were added in version 2.3, but these features were omitted from NEWS.
848 Many functions have variants with an `_l' suffix that take a `locale_t'
849 object as a parameter rather than consulting the current locale.
850 The new functions `newlocale', `duplocale', and `freelocale' in <locale.h>
851 create and maintain `locale_t' objects. Additionally, the new function
852 `uselocale' sets "the current locale" (as used by functions not so
853 parameterized) set for an individual thread. These features were added
854 in version 2.3, implemented by Ulrich Drepper and Roland McGrath.
856 * The functions getresuid, getresgid, setresuid, and setresgid, which
857 have long been available on Linux, are now declared in <unistd.h>
858 and are now also available on the Hurd.
860 * ELF thread-local storage support (TLS) now works on x86-64.
862 * The new dynamic string token $LIB is expanded in shared library names.
863 This normally expands to lib, but on some 64-bit platforms to lib64 instead.
865 * Aldy Hernandez contributed complete software floating point support for
866 PowerPC machines with no FPU.
868 * fexecve is implemented on Linux.
870 * The `btowc' function should work at least twice as fast due to
871 specialized callbacks in the iconv modules. Implemented by Bruno Haible.
873 * With approriate thread add-ons cancelable functions are now implemented
874 in libc.so as well. No need to call the function in libpthread. This
875 change allowed to finally disable the incorrect and expensive handling
876 of weak definition in ld.so.
878 * Yet more PLT entries in libc.so have been removed. We finally arrived
879 at the bare minimum. Startup times improved appropriately.
881 * Support for the new Linux/x86 system call interface was added. The
882 AT_SYSINFO auxiliary vector entry is recognized and handled.
883 \f
884 Version 2.3
886 * Masahide Washizawa contributed iconv modules for IBM1163 and IBM1164
887 charsets.
889 * iconv (the program and the interface) now accepts empty names (excluding
890 options like //TRANSLIT) to mean "use charset of current locale".
892 * localedef can now transliterate characters in strings which are not in
893 the provided charmap. The information from the input locale is used.
895 * Prelinking support was added for ELF targets. This requires additional
896 tools and recent versions of the GNU binutils. Contributed by Jakub Jelinek.
898 * Read-only stdio streams now use mmap to speed up operation by eliminating
899 copying and buffer underflows. To use add 'm' to the mode string of
900 the fopen/fdopen/freopen call. Implemented by Ulrich Drepper.
902 * The malloc functions were completely rewritten by Wolfram Gloger based
903 on Doug Lea's malloc-2.7.0.c.
905 * Isamu Hasegawa contributed a completely new and POSIX-conformant
906 implementation of regex.
908 * Bruno Haible upgraded the iconv and locale implementation to support
909 Unicode 3.2.
911 * Contents of the LC_* and LANG environment variables in the CEN style are
912 not recognized anymore. It never was used. Change by Ulrich Drepper.
914 * The runtime (ld.so, libc, libpthread for Linux) now can handle the ELF
915 thread-local storage (TLS) ABI on some platforms.
916 Changes by Ulrich Drepper. SH support by Kaz Kojima.
918 * Bruno Haible contributed iconv converters for ISO-2022-JP-3, SHIFT JIS-X0213,
919 EUC-JISX0213, and TSCII.
921 * New header <ifaddrs.h> with functions `getifaddrs' and `freeifaddrs':
922 BSD-compatible interface for getting all network interface addresses.
923 Implementation for IPv4 by Roland McGrath.
925 * Loading of locale data is faster due to the introduction of a locale
926 archive. Implemented by Roland McGrath and Ulrich Drepper.
928 * Startup times are significantly reduced by not using exported functions
929 inside the library itself. Changes by Jakub Jelinek, Roland McGrath,
930 and Ulrich Drepper.
932 * Steven Munroe contributed a port to PowerPC64/Linux.
933 \f
934 Version 2.2.6
936 * The Hurd now uses the GNU libio implementation of stdio rather than the
937 old GNU stdio implementation, and uses a new ABI (libc.so.0.3).
939 * The Hurd on x86 now has the `ioperm' function and <sys/io.h> header file
940 with the same behavior as the Linux system call of the same name.
941 \f
942 Version 2.2.5
944 * Stephen Moshier implemented log2, log10, powl and cbrtl for the
945 128-bit long double format.
947 * Masahide Washizawa contributed iconv modules for IBM1132, IBM1133, IBM1160,
948 IBM1161, and IBM1162 charsets.
950 * Andreas Jaeger contributed a port to x86-64/Linux.
952 * Peter Bruin contributed a port to PowerPC/Hurd.
954 * libc functions using I/O streams now can handle wide-oriented streams
955 as well.
957 * optimizations in the dynamic linker. Binaries created by recent binutils
958 versions start up quicker due to reduced time spent on relocations.
960 * Support for use of gcc3 added by Jakub Jelinek and HJ Lu.
961 \f
962 Version 2.2.4
964 * Stephen Moshier implemented cosh, expm1, log1p, acos, sinh, tanh,
965 asinh, atanh, j0 for the 128-bit long double format.
967 * Bruno Haible updated all the code handling Unicode in some form to
968 support Unicode 3.1.
970 * Speed of regex for single-byte locales is back to previous levels.
971 Patch by Isamu Hasegawa.
973 * Alpha, SPARC, and IA-64 now also using floating stacks.
975 * Startup time of internationalized applications greatly improved through
976 iconv cache. Use iconvconfig to generate the cache file.
977 Contributed by Ulrich Drepper.
979 * The IA-64 specific part of ld.so was rewritten to eliminate some pretty
980 severe performance problems. Patch by David Mosberger.
982 * The Hurd port got a lot more functionality like AIO, various stdio
983 extensions, etc. Mainly done by Roland McGrath.
985 * mtrace can now lookup symbols in shared libraries.
986 \f
987 Version 2.2.3
989 * Intel's IA-64 math library is largely integrated. It provides fast and
990 accurate implementatations for most basic and standard math functions
991 in float, double, and long double format.
993 * Stephen Moshier implemented j0, j1, jn, y0, y1, yn, lgamma, erf, erfc,
994 and asin for the 96-bit long double format and asin, log, tan for the
995 128-bit long double format.
997 * The beginning of a last-bit accurate math library by IBM Haifa were added.
998 The basic double functions exist today. Contributed by Abraham Ziv
999 <ziv@il.ibm.com>, Moshe Olshansky <olshansk@il.ibm.com>, Ealan Henis
1000 <ealan@il.ibm.com>, and Anna Reitman <reitman@il.ibm.com>.
1002 * An asynchronous name lookup library was added. The interface is designed
1003 after POSIX AIO. The proposal was circulated beforehand to get comments.
1004 No negative ones came in. Implemented by Ulrich Drepper.
1006 * Port to S390/64bit contributed by Martin Schwidefsky
1007 <schwidefsky@de.ibm.com>.
1009 * David Mosberger <davidm@hpl.hp.com> implemented the setcontext family
1010 of functions for Linux/IA-64.
1012 * The RPC code is now thread safe. Threads can now use the same service
1013 of different services at the same time. Patch by Eric Norum
1014 <eric.norum@usask.ca> with some help by Ulrich Drepper.
1016 * Martin Schwidefsky <schwidefsky@de.ibm.com> implemented the setcontext
1017 family of functions for Linux/S390.
1019 * Ulrich Drepper <drepper@redhat.com> implemented the setcontext family
1020 of functions for Linux/x86.
1022 * Port to Linux/CRIS contributed by Axis Communications.
1023 \f
1024 Version 2.2.2
1026 * Lots of headers were cleaned up. Using the tool in the conform/ subdir
1027 we can now check for namespace violations and missing declarations. The
1028 result is that almost all headers are now Unix-compliant (as defined in
1029 the upcoming XPG6). The negative side is that some programs might need
1030 corrections, too, if they depend on the incorrect form of the headers in
1031 previous versions which defined too many symbols and included too many
1032 other headers.
1034 * regex now handles multibyte character sets correctly.
1035 Contributed by Isamu Hasegawa <isamu@yamato.ibm.com>.
1037 * iconv (the program) does now conform to the upcoming XPG6 and handles
1038 charmaps. Instead of the charset names the path of charmaps can be
1039 provided and the conversion happens based on this data.
1040 Contributed by Ulrich Drepper.
1042 * The locale program now provides detailed information about the installed
1043 locales. While
1045 locale -a
1047 only lists the names of the supported locales
1049 locale -a --verbose
1051 provides details such as country, language, and codeset name.
1052 Contributed by Ulrich Drepper.
1053 \f
1054 Version 2.2.1
1056 * The gencat program now parses the input file according to the charset
1057 selected by the LC_CTYPE category. This is important for stateful
1058 character sets. To make generating catalogs easier there is a way
1059 to overwrite the charset selected by the locale: before the first
1060 message or $ quote line the catalog can contain a line like
1062 $ codeset=ISO-8859-2
1064 to select the charset (ISO-8859-2 in this case).
1066 Implemented by Shinya Hanataka and Ulrich Drepper.
1068 * New codeset conversion modules: IBM-922 (Estonia PC codeset),
1069 IBM-1124 (Ukraine PC codeset), IBM-1129 (Vietnamese PC codeset).
1070 Contributed by Masahide Washizawa <washi@jp.ibm.com>.
1072 * Optimized string functions for Alpha ev6 and ev67 by Richard Henderson
1073 <rth@redhat.com> and Rick Gorton <rick.gorton@alpha-processor.com>.
1075 * The LANGUAGE environment variable is now ignored unless the locale is
1076 changed from the default "C" locale.
1078 * The usual bug fixes.
1079 \f
1080 Version 2.2
1082 * Greg McGary added runtime support for bounds checking using gcc's
1083 new -fbounded-pointers option. ix86 target is complete. PowerPC
1084 is in progress.
1086 * Thorsten Kukuk added secure mode support to nscd.
1088 * The Berkeley db libraries have been removed.
1090 Related, the nss_db module is now in a separate package since it
1091 obviously requires a database library being available.
1093 * Wide character I/O streams implemented by Ulrich Drepper.
1095 * Functions from the extended socket API added by Ulrich Drepper.
1097 * Functions feenableexcept and fedisableexcept to control the
1098 behaviour of individual exceptions have been added by Andreas Jaeger.
1100 * ldconfig program added by Andreas Jaeger and Jakub Jelinek.
1102 * The resolver code has been updated from bind 8.2.3-T5B which supports
1103 threads. The integration was done by Andreas Jaeger, Adam D. Bradley,
1104 and Mark Kettenis.
1106 This change could in some situations effect backward compatibility. Since
1107 now `_res' is a thread-local instead of a global variable, modifying it
1108 in one thread does not have any effect in other threads.
1110 The resolver library was also extended to allow IPv6 as the transport
1111 protocol for the requests. This work was done by Stig Venaas.
1113 * Compatibility code for K&R C compilers has been removed from the
1114 header files. A ISO C compiler is needed to use the library
1115 (conforming to either C89 or C99 standard).
1117 * Complete rewrite of the localedef program to support multibyte character
1118 sets. Implement handling of ISO 14651 and ISO 14652. Rewrite strcoll,
1119 strxfrm, wcscoll, and wcsxfrm functions. Make isw*() functions work.
1120 Implemented by Ulrich Drepper.
1122 Bruno Haible significantly improved the generation and use of the data
1123 structures for the wide character tables.
1125 * Plural handling in gettext implemented by Ulrich Drepper.
1127 * The utmp daemon has been removed.
1129 * The port to MIPS-Linux has been finished by Andreas Jaeger.
1131 * A port to Hitachi SH3 and SH4 has been contributed by Kazumoto Kojima
1132 and Yutaka Niibe.
1134 * POSIX clocks and timers implemented by Kaz Kylheku and Ulrich Drepper.
1136 * POSIX barriers implemented by Kaz Kylheku.
1138 * POSIX spawn function family implemented by Ulrich Drepper.
1140 * POSIX spinlocks are now available.
1142 * Timed wait functions for mutex, rwlock, and semaphores are implemented.
1144 * the configure option --enable-kernel=X.Y.Z allows to strip out
1145 compatibility for kernel versions before X.Y.Z. This is currently only
1146 implemented for Linux.
1148 * the sockaddr_in6 structure changed. The IPv6 working group added a new
1149 field sin6_scope_id. This means that all programs using IPv6 should be
1150 recompiled. Don't expect binary compatibility with previous glibc
1151 versions.
1153 * various conversion modules for IBM character sets contributed by
1154 Masahide Washizawa.
1156 * IA-64 port by Jes Sorensen and HJ Lu.
1157 \f
1158 Version 2.1.3
1160 * bug fixes
1162 \f
1163 Version 2.1.2
1165 * bug fixes
1167 \f
1168 Version 2.1.1
1170 * New ISO C 9x function _Exit, imaxabs, and imaxdiv are added.
1172 * New xdr functions are added; some rpc functions are now 64bit clean.
1174 * Fixed a number of bugs and memory leaks (especially in NIS+ code).
1176 * Fixed known incompatibilities with glibc 2.0.
1178 * New functions lock64, strchrnul, rawmemchr, getutmp and getutmpx.
1180 * Optimized a number of functions (especially the ELF dynamic loader).
1182 * Update timezone data files.
1184 * lots of charmaps corrections
1186 * some new locale definitions and charmaps
1188 \f
1189 Version 2.1
1191 * Richard Henderson corrected size of struct timeval on Linux/Alpha to
1192 conform to POSIX member type requirements. Symbol versions have been
1193 adjusted as needed within the library, and for direct use by applications,
1194 but there is potential for problems if third-party libraries use
1195 struct timeval as part of their interface. This does not present
1196 a problem for X and other "essential" system libraries.
1198 * An additional locale model to support C++ Standard Library locale
1199 model and probably more was implemented by Ulrich Drepper.
1201 * Eric Youngdale and Ulrich Drepper implemented versioning of objects on
1202 symbol level.
1204 * Miles Bader provided the `argp' function family to support hierachical
1205 command line argument parsing, layered on top of getopt.
1207 * strtod accepts new hexadecimal floating-point format from ISO C 9X.
1209 * printf has two new specifiers %a and %A to print hexadecimal flaoting-point
1210 numbers.
1212 * scanf recognizes the %a and %A format for scanning floating point numbers.
1214 * the new headers <stdint.h> and <inttypes.h> from ISO C 9X provides
1215 information and interfaces for the available integer types.
1217 * about 130 new math functions were added to implement the ISO C9x math
1218 library.
1220 * the new header <complex.h> contains definitions of the complex math
1221 functions from ISO C 9X.
1223 * the new header <tgmath.h> defines generic macros to use complex or
1224 real valued functions.
1226 * Thorsten Kukuk provided an implementation for NIS+, securelevel 0, 1 and 2.
1228 * Andreas Jaeger provided a test suite for the math library.
1230 * Mark Kettenis implemented the utmpx interface and an utmp daemon.
1232 * Ulrich Drepper added character set conversion functions (iconv).
1234 * Optimized string functions have been added.
1236 * The localedata addon is now part of glibc.
1238 * An implementation of profiling shared libraries was added by Ulrich Drepper.
1240 * Thorsten Kukuk and Ulrich Drepper provided an implementation for a caching
1241 daemon for NSS (nscd).
1243 Missing a better place here are some numbers on improvements. Under
1244 Linux 2.1.125 un-tar-ing the kernel sources takes
1246 user system wall
1248 using local files 12.19s 6.88s 22.91s
1250 using NIS 13.92s 8.91s 26.34s
1252 using NIS & nscd 10.37s 7.34s 25.30s
1254 using NIS+ 27.57s 30.37s 640.46s
1256 using NIS+ & nscd 10.25s 7.83s 26.51s
1258 using NIS & old nscd [1] 13.83s 8.32s 29.60s
1260 Keep in mind that non-namelookup related operations dominate above times.
1261 It was just a common complain that using NIS+ unpacking the kernel is
1262 horribly slow.
1264 [1] The old nscd implementation is not available anymore since it was
1265 distributed with glibc up to version 2.0.98 and thus is now replaced.
1267 * Tim Waugh provided an implementation of the POSIX.2 wordexp function family.
1269 * Mark Kettenis provided a Hesiod NSS module.
1271 * The ELF dynamic loader knows how to process dynamic string tokens ($ORIGIN
1272 and $PLATFORM) in RPATHs and similar strings (Ulrich Drepper).
1274 * rcmd can now handle netgroups (Dick Streefland).
1276 * A port to the ARM was contributed by Phil Blundell, Pat Beirne and Scott
1277 Bambrough.
1279 * Support for the IPv6 protocol has been added to the socket API, as per the
1280 latest draft standards.
1282 * Support for Linux 2.2 has been added.
1284 * Interface changes relative to the latest 2.0.x release:
1285 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1286 addseverity NEW: Unix98
1287 alphasort64 NEW: LFS
1288 argp_err_exit_status NEW: argp, GNU ext
1289 argp_error NEW: argp, GNU ext
1290 argp_failure NEW: argp, GNU ext
1291 argp_help NEW: argp, GNU ext
1292 argp_parse NEW: argp, GNU ext
1293 argp_program_bug_address NEW: argp, GNU ext
1294 argp_program_version NEW: argp, GNU ext
1295 argp_program_version_hook NEW: argp, GNU ext
1296 argp_state_help NEW: argp, GNU ext
1297 argp_usage NEW: argp, GNU ext
1298 authdes_create NEW: Secure RPC
1299 authdes_getucred NEW: Secure RPC
1300 authdes_pk_create NEW: Secure RPC
1301 backtrace NEW: GNU ext.
1302 backtrace_symbols NEW: GNU ext.
1303 backtrace_symbols_fd NEW: GNU ext.
1304 cacos NEW: ISO C 9x
1305 cacosf NEW: ISO C 9x
1306 cacosh NEW: ISO C 9x
1307 cacoshf NEW: ISO C 9x
1308 cacoshl NEW: ISO C 9x
1309 cacosl NEW: ISO C 9x
1310 capget NEW: kernel
1311 capset NEW: kernel
1312 carg NEW: ISO C 9x
1313 cargf NEW: ISO C 9x
1314 cargl NEW: ISO C 9x
1315 casin NEW: ISO C 9x
1316 casinf NEW: ISO C 9x
1317 casinh NEW: ISO C 9x
1318 casinhf NEW: ISO C 9x
1319 casinhl NEW: ISO C 9x
1320 casinl NEW: ISO C 9x
1321 catan NEW: ISO C 9x
1322 catanf NEW: ISO C 9x
1323 catanh NEW: ISO C 9x
1324 catanhf NEW: ISO C 9x
1325 catanhl NEW: ISO C 9x
1326 catanl NEW: ISO C 9x
1327 cbc_crypt NEW: Secure RPC
1328 ccos NEW: ISO C 9x
1329 ccosf NEW: ISO C 9x
1330 ccosh NEW: ISO C 9x
1331 ccoshf NEW: ISO C 9x
1332 ccoshl NEW: ISO C 9x
1333 ccosl NEW: ISO C 9x
1334 cexp NEW: ISO C 9x
1335 cexpf NEW: ISO C 9x
1336 cexpl NEW: ISO C 9x
1337 cimag NEW: ISO C 9x
1338 cimagf NEW: ISO C 9x
1339 cimagl NEW: ISO C 9x
1340 clearerr_locked REMOVED
1341 clntunix_create NEW: sunrpc ext
1342 clog NEW: ISO C 9x
1343 clog10 NEW: ISO C 9x
1344 clog10f NEW: ISO C 9x
1345 clog10l NEW: ISO C 9x
1346 clogf NEW: ISO C 9x
1347 clogl NEW: ISO C 9x
1348 conj NEW: ISO C 9x
1349 conjf NEW: ISO C 9x
1350 conjl NEW: ISO C 9x
1351 cpow NEW: ISO C 9x
1352 cpowf NEW: ISO C 9x
1353 cpowl NEW: ISO C 9x
1354 cproj NEW: ISO C 9x
1355 cprojf NEW: ISO C 9x
1356 cprojl NEW: ISO C 9x
1357 creal NEW: ISO C 9x
1358 crealf NEW: ISO C 9x
1359 creall NEW: ISO C 9x
1360 creat64 NEW: LFS
1361 csin NEW: ISO C 9x
1362 csinf NEW: ISO C 9x
1363 csinh NEW: ISO C 9x
1364 csinhf NEW: ISO C 9x
1365 csinhl NEW: ISO C 9x
1366 csinl NEW: ISO C 9x
1367 csqrt NEW: ISO C 9x
1368 csqrtf NEW: ISO C 9x
1369 csqrtl NEW: ISO C 9x
1370 ctan NEW: ISO C 9x
1371 ctanf NEW: ISO C 9x
1372 ctanh NEW: ISO C 9x
1373 ctanhf NEW: ISO C 9x
1374 ctanhl NEW: ISO C 9x
1375 ctanl NEW: ISO C 9x
1376 des_setparity NEW: Secure RPC
1377 ecb_crypt NEW: Secure RPC
1378 endutxent NEW: Unix98
1379 exp10 NEW: ISO C 9x
1380 exp10f NEW: ISO C 9x
1381 exp10l NEW: ISO C 9x
1382 exp2 NEW: ISO C 9x
1383 exp2f NEW: ISO C 9x
1384 exp2l NEW: ISO C 9x
1385 fattach NEW: STREAMS
1386 fdetach NEW: STREAMS
1387 fdim NEW: ISO C 9x
1388 fdimf NEW: ISO C 9x
1389 fdiml NEW: ISO C 9x
1390 feclearexcept NEW: ISO C 9x
1391 fegetenv NEW: ISO C 9x
1392 fegetexceptflag NEW: ISO C 9x
1393 fegetround NEW: ISO C 9x
1394 feholdexcept NEW: ISO C 9x
1395 feof_locked REMOVED
1396 feraiseexcept NEW: ISO C 9x
1397 ferror_locked REMOVED
1398 fesetenv NEW: ISO C 9x
1399 fesetexceptflag NEW: ISO C 9x
1400 fesetround NEW: ISO C 9x
1401 fetestexcept NEW: ISO C 9x
1402 feupdateenv NEW: ISO C 9x
1403 fflush_locked REMOVED
1404 ffsl NEW: GNU ext.
1405 ffsll NEW: GNU ext.
1406 fgetpos64 NEW: LFS
1407 fgets_unlocked NEW: GNU ext.
1408 fileno_locked REMOVED
1409 fma NEW: ISO C 9x
1410 fmaf NEW: ISO C 9x
1411 fmal NEW: ISO C 9x
1412 fmax NEW: ISO C 9x
1413 fmaxf NEW: ISO C 9x
1414 fmaxl NEW: ISO C 9x
1415 fmin NEW: ISO C 9x
1416 fminf NEW: ISO C 9x
1417 fminl NEW: ISO C 9x
1418 fmtmsg NEW: Unix98
1419 fopen64 NEW: LFS
1420 fputc_locked REMOVED
1421 fputs_unlocked NEW: GNU ext.
1422 fread_unlocked NEW: GNU ext.
1423 freopen64 NEW: LFS
1424 fseeko NEW: Unix98
1425 fsetpos64 NEW: LFS
1426 fstatfs64 NEW: LFS
1427 fstatvfs NEW: Unix98
1428 fstatvfs64 NEW: LFS
1429 ftello NEW: Unix98
1430 ftello64 NEW: LFS
1431 ftruncate64 NEW: LFS
1432 ftw64 NEW: LFS
1433 fwrite_unlocked NEW: GNU ext.
1434 gai_strerror NEW: IPv6
1435 gamma_r REMOVED
1436 gammaf_r REMOVED
1437 gammal_r REMOVED
1438 getchar_locked REMOVED
1439 getdate NEW: Unix98
1440 getdate_err NEW: Unix98
1441 getdate_r NEW: GNU ext.
1442 getmsg NEW: STREAMS
1443 getnameinfo NEW: IPv6
1444 getnetname NEW: Secure RPC
1445 getpmsg NEW: STREAMS
1446 getpt NEW: Unix98 PTY
1447 getrlimit64 NEW: LFS
1448 getutxent NEW: Unix98
1449 getutxid NEW: Unix98
1450 getutxline NEW: Unix98
1451 glob64 NEW: GNU ext.
1452 globfree64 NEW: GNU ext.
1453 gnu_get_libc_release NEW: GNU ext.
1454 gnu_get_libc_version NEW: GNU ext.
1455 grantpt NEW: Unix98 PTY
1456 host2netname NEW: Secure RPC
1457 iconv NEW: iconv
1458 iconv_close NEW: iconv
1459 iconv_open NEW: iconv
1460 if_freenameindex NEW: IPv6
1461 if_indextoname NEW: IPv6
1462 if_nameindex NEW: IPv6
1463 if_nametoindex NEW: IPv6
1464 in6addr_any NEW: IPv6
1465 in6addr_loopback NEW: IPv6
1466 inet6_isipv4mapped NEW: IPv6
1467 isastream NEW: STREAMS
1468 iswblank NEW: GNU ext.
1469 key_decryptsession NEW: Secure RPC
1470 key_decryptsession_pk NEW: Secure RPC
1471 key_encryptsession NEW: Secure RPC
1472 key_encryptsession_pk NEW: Secure RPC
1473 key_gendes NEW: Secure RPC
1474 key_get_conv NEW: Secure RPC
1475 key_secretkey_is_set NEW: Secure RPC
1476 key_setnet NEW: Secure RPC
1477 key_setsecret NEW: Secure RPC
1478 llrint NEW: ISO C 9x
1479 llrintf NEW: ISO C 9x
1480 llrintl NEW: ISO C 9x
1481 llround NEW: ISO C 9x
1482 llroundf NEW: ISO C 9x
1483 llroundl NEW: ISO C 9x
1484 log2 NEW: ISO C 9x
1485 log2f NEW: ISO C 9x
1486 log2l NEW: ISO C 9x
1487 lrint NEW: ISO C 9x
1488 lrintf NEW: ISO C 9x
1489 lrintl NEW: ISO C 9x
1490 lround NEW: ISO C 9x
1491 lroundf NEW: ISO C 9x
1492 lroundl NEW: ISO C 9x
1493 lseek64 NEW: LFS
1494 makecontext NEW: Unix98
1495 mempcpy NEW: GNU ext.
1496 mmap64 NEW: LFS
1497 moncontrol REMOVED
1498 modify_ldt NEW: kernel
1499 nan NEW: ISO C 9x
1500 nanf NEW: ISO C 9x
1501 nanl NEW: ISO C 9x
1502 nearbyint NEW: ISO C 9x
1503 nearbyintf NEW: ISO C 9x
1504 nearbyintl NEW: ISO C 9x
1505 netname2host NEW: Secure RPC
1506 netname2user NEW: Secure RPC
1507 nexttoward NEW: ISO C 9x
1508 nexttowardf NEW: ISO C 9x
1509 nexttowardl NEW: ISO C 9x
1510 nftw NEW: Unix98
1511 nftw64 NEW: LFS
1512 open64 NEW: LFS
1513 passwd2des NEW: Secure RPC
1514 pow10 NEW: GNU ext.
1515 pow10f NEW: GNU ext.
1516 pow10l NEW: GNU ext.
1517 pread NEW: Unix98
1518 pread64 NEW: LFS
1519 printf_size NEW: GNU ext.
1520 printf_size_info NEW: GNU ext.
1521 profil_counter REMOVED
1522 pthread_mutexattr_getkind_np REPLACED
1523 pthread_mutexattr_setkind_np REPLACED
1524 ptsname NEW: Unix98 PTY
1525 ptsname_r NEW: Unix98 PTY
1526 putc_locked REMOVED
1527 putchar_locked REMOVED
1528 putgrent NEW: GNU ext.
1529 putmsg NEW: STREAMS
1530 putpmsg NEW: STREAMS
1531 pututxline NEW: Unix98
1532 pwrite NEW: Unix98
1533 pwrite64 NEW: LFS
1534 readdir64 NEW: LFS
1535 readdir64_r NEW: LFS
1536 remquo NEW: ISO C 9x
1537 remquof NEW: ISO C 9x
1538 remquol NEW: ISO C 9x
1539 round NEW: ISO C 9x
1540 roundf NEW: ISO C 9x
1541 roundl NEW: ISO C 9x
1542 rtime NEW: GNU ext.
1543 scalbln NEW: ISO C 9x
1544 scalblnf NEW: ISO C 9x
1545 scalblnl NEW: ISO C 9x
1546 scandir64 NEW: LFS
1547 sendfile NEW: kernel
1548 setcontext NEW: Unix98
1549 setrlimit64 NEW: LFS
1550 setutxent NEW: Unix98
1551 sighold NEW: Unix98
1552 sigignore NEW: Unix98
1553 sigqueue NEW: POSIX.1b
1554 sigrelse NEW: Unix98
1555 sigset NEW: POSIX.1b
1556 sigtimedwait NEW: POSIX.1b
1557 sigwaitinfo NEW: POSIX.1b
1558 sincos NEW: GNU ext.
1559 sincosf NEW: GNU ext.
1560 sincosl NEW: GNU ext.
1561 statfs64 NEW: LFS
1562 statvfs NEW: Unix98
1563 statvfs64 NEW: LFS
1564 strcasestr NEW: GNU ext.
1565 strtoimax NEW: ISO C 9x
1566 strtoumax NEW: ISO C 9x
1567 strverscmp NEW: GNU ext.
1568 svcauthdes_stats NEW: Secure RPC
1569 svcunix_create NEW: sunrpc etx
1570 svcunixfd_create NEW: sunrpc ext
1571 swapcontext NEW: Unix98
1572 tcgetsid NEW: Unix98 PTY
1573 tdestroy NEW: GNU ext.
1574 tgamma NEW: ISO C 9x
1575 tgammaf NEW: ISO C 9x
1576 tgammal NEW: ISO C 9x
1577 tmpfile64 NEW: LFS
1578 trunc NEW: ISO C 9x
1579 truncate64 NEW: LFS
1580 truncf NEW: ISO C 9x
1581 truncl NEW: ISO C 9x
1582 umount2 NEW: kernel
1583 unlockpt NEW: Unix98 PTY
1584 updwtmpx NEW: Unix98
1585 user2netname NEW: Secure RPC
1586 utmpxname NEW: Unix98
1587 versionsort NEW: GNU ext.
1588 versionsort64 NEW: GNU ext.
1589 waitid NEW: Unix98
1590 wcscasecmp NEW: GNU ext.
1591 wcsncasecmp NEW: GNU ext.
1592 wcsnlen NEW: GNU ext.
1593 wcstoimax NEW: ISO C 9x
1594 wcstoll NEW: ISO C 9x
1595 wcstoull NEW: ISO C 9x
1596 wcstoumax NEW: ISO C 9x
1597 wcswcs NEW: Unix98
1598 wordexp NEW: POSIX.2
1599 wordfree NEW: POSIX.2
1600 write_profiling REMOVED
1601 xdecrypt NEW: Secure RPC
1602 xdr_authdes_cred NEW: Secure RPC
1603 xdr_authdes_verf NEW: Secure RPC
1604 xdr_cryptkeyarg NEW: Secure RPC
1605 xdr_cryptkeyarg2 NEW: Secure RPC
1606 xdr_cryptkeyres NEW: Secure RPC
1607 xdr_getcredres NEW: Secure RPC
1608 xdr_key_netstarg NEW: Secure RPC
1609 xdr_key_netstres NEW: Secure RPC
1610 xdr_keybuf NEW: Secure RPC
1611 xdr_keystatus NEW: Secure RPC
1612 xdr_netnamestr NEW: Secure RPC
1613 xdr_sizeof NEW: Secure RPC
1614 xdr_unixcred NEW: sunrpc ext
1615 xencrypt NEW: Secure RPC
1616 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1617 \f
1618 Version 2.0.6
1620 * more bug fixes
1622 \f
1623 Version 2.0.5
1625 * more bug fixes
1627 * inet_ntoa is thread-safe
1629 * updwtmp is moved from libutil to libc
1631 * rewrite of cbrt function
1633 * update of timezone data
1634 \f
1635 Version 2.0.4
1637 * more bug fixes
1638 \f
1639 Version 2.0.3
1641 * more bug fixes
1642 \f
1643 Version 2.0.2
1645 * more bug fixes
1647 * add atoll function
1649 * fix complex problems in Berkeley DB code
1651 * fix math functions
1652 \f
1653 Version 2.0.1
1655 * fixed lots of header problems (especially Linux/GNU specific)
1657 * dynamic loader preserves all registers
1659 * Roland McGrath provided support for handling of auxiliary objects in
1660 the ELF dynamic loader.
1662 * support for parallel builds is improved
1663 \f
1664 Version 2.0
1666 * GNU extensions are no longer declared by default. To enable them you
1667 must define the macro `_GNU_SOURCE' in your program or compile with
1668 `-D_GNU_SOURCE'.
1670 * The library has changed from using GNU ld symbol aliases to using weak
1671 symbols where available. The ELF object file format supports weak
1672 symbols; GNU ld also supports weak symbols in the a.out format. (There
1673 is also now support for other GNU ld extensions in ELF. Use the
1674 `--with-elf' option to configure to indicate you have ELF, and
1675 `--with-gnu-ld' if using GNU ld.) This change resulted in the deletion
1676 of many files which contained only symbol aliases, reducing the size of
1677 the source and the compiled library; many other files were renamed to
1678 less cryptic names previously occupied by the symbol alias files.
1679 There is a new header file <elf.h> for programs which operate on
1680 files in the ELF format.
1682 * Converted to Autoconf version 2, so `configure' has more options.
1683 Run `configure --help' to see the details.
1685 * The library can now be configured to build profiling, highly-optimized
1686 (but undebuggable), and/or shared libraries (ELF with GNU ld only). The
1687 `--enable-profile', `--enable-omitfp', and `--enable-shared' options to
1688 `configure' enable building these extra libraries. The shared library is
1689 built by default when using both ELF and GNU ld. When shared libraries
1690 are enabled, the new library `-ldl' is available for arbitrary run-time
1691 loading of shared objects; its interface is defined in <dlfcn.h>. The
1692 new header file <link.h> gives access to the internals of the run-time
1693 dynamic linker, `ld.so'. The shell script `ldd' is similar to the
1694 application of same name on other systems and it provides information
1695 about dynamically linked binaries.
1697 * The C library now provides the run-time support code for profiling
1698 executables compiled with `-pg'. Programs can control the profiling code
1699 through the interface in <sys/gmon.h>. The `gmon.out' files written by
1700 the GNU C library can be read only by GNU `gprof' (from GNU binutils);
1701 the support for this file format was contributed by David Mosberger-Tang.
1703 * The math code has been replaced with a math library based on fdlibm from
1704 Sun, and modified by JT Conklin and Ulrich Drepper with i387 support, by
1705 Ian Taylor with `float' functions and by Ulrich Drepper with `long double'
1706 functions. The math functions now reside in a separate library, so
1707 programs using them will need to use `-lm' their linking commands.
1709 * John C. Bowman contributed optimized ix87 assembler inline functions.
1711 * Ulrich Drepper has contributed support for an `/etc/nsswitch.conf'
1712 mechanism similar to that found in Solaris 2. This is now used for the
1713 group, passwd, hosts, networks, services, protocols, rpc, ethers,
1714 shadow, netgroup, publickey, and alias databases. The `nsswitch.conf'
1715 file controls what services are used for each individual database. This
1716 works by loading shared libraries with names specified in `nsswitch.conf',
1717 so service modules can be changed or added at any time without even
1718 relinking any program. Currently there are the file, db, and NIS based
1719 NSS services available.
1721 * The new functions `strtoq' and `strtouq' parse integer values from
1722 strings, like `strtol' and `strtoul', but they return `long long int' and
1723 `unsigned long long int' values, respectively (64-bit quantities).
1725 * The new functions `strtof' and `strtold' parse floating-point values from
1726 strings, like `strtod', but they return `float' and `long double' values,
1727 respectively (on some machines `double' and `long double' are the same).
1729 * Ulrich Drepper has contributed new implementations of the floating-point
1730 printing and reading code used in the `printf' family of functions and
1731 `strtod', `strtof', and `strtold'. These new functions are perfectly
1732 accurate, and much faster than the old ones.
1734 * The implementation of the POSIX locale model was completely rewritten by
1735 Ulrich Drepper. This includes the new programs `localedef' and `locale'
1736 to compile the POSIX locale definition.
1738 * The former dummy implementations of the strcoll and strxfrm function are
1739 now replaced by fully functional code contributed by Ulrich Drepper. The
1740 collation information comes from the POSIX locale definitions.
1742 * The new header <langinfo.h> defines an interface for accessing
1743 various locale-dependent data (using the locale chosen with `setlocale').
1745 * Ulrich Drepper has contributed a new suite of functions for operation on
1746 wide-character and multibyte-character strings, in <wchar.h>;
1747 and classification and case conversion of wide characters, in <wctype.h>.
1748 These new functions are conforming to the ISO C, Amendement 1 specification.
1750 * There is now a second implementation of the standard I/O library available.
1751 It comes from GNU libg++ as was written by Per Bothner, heavily modified
1752 by Hongjiu Lu and made thread safe by Ulrich Drepper.
1754 * You can now use positional parameter specifications in format strings
1755 for the `printf' and `scanf' families of functions. For example,
1756 `printf ("Number %2$d, Mr %1$s\n", "Jones", 6);'' prints
1757 ``Number 6, Mr Jones''. This is mainly useful when providing different
1758 format strings for different languages, whose grammars may dictate
1759 different orderings of the values being printed. To support this
1760 feature, the interface for `register_printf_handler' has changed; see
1761 the header file <printf.h> for details.
1763 * The `printf' and `scanf' families of functions now understand a new
1764 formatting flag for numeric conversions: the ' flag (e.g. %'d or %'f) says
1765 to group numbers as indicated by the locale; for `scanf' and friends, this
1766 says to accept as valid only a number with all the proper grouping
1767 separators in the right places. In the default "C" locale, numbers are
1768 not grouped; but locales for specific countries will define the usual
1769 conventions (i.e. separate thousands with `,' in the US locale).
1771 * The pgrp functions have been regularized, slightly incompatibly but much
1772 less confusingly. The core functions are now `getpgid' and `setpgid',
1773 which take arguments for the PID to operate on; the POSIX.1 `getpgrp' (no
1774 argument) and BSD `setpgrp' (identical to `setpgid') functions are
1775 provided for compatibility. There is no longer an incompatible `getpgrp'
1776 with an argument declared under _BSD_SOURCE; no BSD code uses it.
1778 * The new header file <fts.h> and suite of functions simplify programs that
1779 operate on directory trees. This code comes from 4.4 BSD.
1781 * The resolver code has been updated from the BIND 4.9.5-P1 release.
1782 Parts of the code were heavily modified by Ulrich Drepper to fit in the
1783 NSS scheme used in glibc.
1785 * There is a new malloc debugging hook `__memalign_hook'.
1787 * There are new typedefs `ushort' for `unsigned short int' and `uint' for
1788 `unsigned int' in <sys/types.h>. These are for compatibility only and
1789 their use is discouraged.
1791 * The `-lmcheck' library to enable standard malloc debugging hooks is now
1792 done differently, so that it works even without GNU ld.
1794 * New function `euidaccess' checks allowed access to a file like `access',
1795 but using the effective IDs instead of the real IDs.
1797 * The time zone data files have been updated for the latest and greatest
1798 local time conventions of the countries of the world.
1800 * The new function `dirfd' extracts the file descriptor used by a DIR stream;
1801 see <dirent.h>.
1803 * The new functions `ecvt', `fcvt', and `gcvt' provide an obsolete interface
1804 for formatting floating-point numbers. They are provided only for
1805 compatibility; new programs should use `sprintf' instead. There are
1806 also equivalent function for the `long double' floating-point type and
1807 all functions also exist in a reentrant form.
1809 * The new auxiliary library `-lutil' from 4.4 BSD contains various
1810 functions for maintaining the login-record files (primarily of use to
1811 system programs such as `login'), and convenient functions for
1812 allocating and initializing a pseudo-terminal (pty) device.
1814 * Ulrich Drepper has contributed new support for System V style
1815 shared memory and IPC on systems that support it.
1817 * Ulrich Drepper has contributed several miscellaneous new functions found
1818 in System V: The `hsearch' family of functions provide an effective
1819 implementation of hash tables; `a64l' and `l64a' provide a very simple
1820 binary to ASCII mapping; `drand48' and friends provide a 48-bit random
1821 number generator.
1823 * Ulrich Drepper has contributed new reentrant counterparts for the
1824 `random' and `hsearch' families of functions; `random_r', `hsearch_r', etc.
1826 * Ulrich Drepper has contributed new, highly-optimized versions of several
1827 string functions for the i486/Pentium family of processors.
1829 * Ulrich Drepper has updated the Linux-specific code, based largely
1830 on work done in Hongjiu Lu's version of GNU libc for Linux.
1831 The GNU library now supports Linux versions 2.0.10 and later,
1832 using the ELF object file format (i[3456]86-*-linux).
1834 * Andreas Schwab has ported the C library to Linux/m68k (m68k-*-linux).
1836 * David Mosberger-Tang and Richard Henderson have ported the C library
1837 to Linux/Alpha (alpha-*-linux). Richard Henderson contributed the
1838 dynamic linking support for ELF/Alpha.
1840 * Richard Henderson contributed several Alpha optimized assembler function
1841 for arithmetic and string handling.
1843 * Ulrich Drepper has contributed a new set of message catalog functions to
1844 support multiple languages using the <libintl.h> interface, for use with
1845 his new package GNU gettext. Translation volunteers have contributed
1846 catalogs of the library's messages in Spanish, German, and Korean.
1848 * For compatibility with XPG4, Ulrich Drepper has contributed the `gencat'
1849 program and the `catgets' function for reading the catalog files it
1850 creates. (The <libintl.h> interface is preferred; we include the
1851 <nl_types.h> interface using `catgets' only for source compatibility with
1852 programs already written to use it.)
1854 * New header file <values.h> gives SVID-compatible names for <limits.h>
1855 constants.
1857 * Various new macros, declarations, and small header files for compatibility
1858 with 4.4 BSD.
1860 * New function `group_member' is a convenient way to check if a process has
1861 a given effective group ID.
1863 * When using GCC 2.7 and later, the socket functions are now declared in a
1864 special way so that passing an argument of type `struct sockaddr_in *',
1865 `struct sockaddr_ns *', or `struct sockaddr_un *' instead of the generic
1866 `struct sockaddr *' type, does not generate a type-clash warning.
1868 * New function `error' declared in header file <error.h> is a convenient
1869 function for printing error messages and optionally exiting; this is the
1870 canonical function used in GNU programs. The new functions `err', `warn',
1871 and friends in header file <err.h> are the canonical 4.4 BSD interface for
1872 doing the same thing.
1874 * The <glob.h> interface has several new flags from 4.4 BSD that extend the
1875 POSIX.2 `glob' function to do ~ and {...} expansion.
1877 * New function `unsetenv' complements `setenv' for compatibility with 4.4 BSD.
1878 `clearenv' which is used in POSIX.9 is also available.
1880 * New function `getsid' returns session ID number on systems that support it.
1882 * We have incorporated the 4.4 BSD `db' library (version 1.85). New header
1883 files <db.h> and <mpool.h> provide a rich set of functions for several
1884 types of simple databases stored in memory and in files, and <ndbm.h> is
1885 an old `ndbm'-compatible interface using the `db' functions. Link with
1886 `-ldb' to get these functions.
1888 * New macro `strdupa' copies a string like `strdup', but uses local stack
1889 space from `alloca' instead of dynamic heap space from `malloc'.
1891 * New function `strnlen' is like `strlen' but searches only a given maximum
1892 number of characters for the null terminator. `stpncpy', `strndup' and
1893 `strndupa' are similar variants for the `stpcpy', `strdup' and `strdupa'
1894 function.
1896 * New function `statfs' in header <sys/statfs.h>.
1898 * The new <argz.h> and <envz.h> interfaces contributed by Miles Bader
1899 provide convenient functions for operating on blocks of null-terminated
1900 strings.
1902 * A new suite of functions in <utmp.h> handle all the details of reading
1903 and writing the utmp file.
1905 * An implementation of the NIS/YP(tm) based NSS service was contributed by
1906 Thorsten Kukuk.
1908 * Paul Eggert and Ulrich Drepper modified the `strftime' function to be
1909 completely POSIX compliant and also implemented the extended functionality
1910 to handle alternate digit representation and alternate era date formats.
1912 * Ulrich Drepper provided an implementation of the `strptime' function
1913 defined in XPG4.2 which transforms a string into a `struct tm' value.
1915 * Paul Eggert provided the tzselect shell script as part of the timezone
1916 code. The shell script makes it easy to select the correct timezone
1917 specification.
1919 * The implementation of the malloc family of functions is completely replaced
1920 by a new implementation by Doug Lea with many improvements by Wolfram Gloger.
1921 The implementation uses the mmap function (if available) and it is
1922 optimized for the use in multi threaded programs.
1924 * Ulrich Drepper contributed a MD5 "encryption" for the crypt family of
1925 functions. This new functionality is usable by specifying a special
1926 salt string and it is compatible with implementation on *BSD systems.
1928 * Lots of functions from the XPG4.2 standard were added by Ulrich Drepper:
1929 `getsubopt' to handle second level command line options, `bsd_signal'
1930 to access BSD style `signal' functionality, the obsolete `regexp' style
1931 expression matcher.
1933 * the `lchown' function is available on system which support this
1934 functionality.
1936 * The implementation of the shadow password handling function was contributed
1937 by Ulrich Drepper.
1939 * David Mosberger-Tang changed the SunRPC implementation to be 64bit safe.
1941 * POSIX.1g support was added. The <sys/select.h> header is available,
1942 `isfdtype' and `pselect' are implemented. Craig Metz contributed an
1943 implementation of `getaddrinfo'.
1944 \f
1945 Version 1.09
1947 * For cross-compilation you should now set `BUILD_CC' instead of `HOST_CC'.
1949 * New header file <fstab.h> and new functions `getfsspec', `getfsent' and
1950 friends, for parsing /etc/fstab. This code comes from 4.4 BSD.
1952 * The new function `daemon' from 4.4 BSD is useful for server programs that
1953 want to put themselves in the background.
1955 * Joel Sherrill has contributed support for several standalone boards that
1956 run without an operating system.
1958 * `printf', `scanf' and friends now accept a `q' type modifier for long
1959 long int as well as `ll'. Formats using these might be `%qu' or `%lld'.
1961 * All of the code taken from BSD (notably most of the math and networking
1962 routines) has been updated from the BSD 4.4-Lite release.
1964 * The resolver code has been updated from the BIND-4.9.3-BETA9 release.
1966 * The new functions `getdomainname' and `setdomainname' fetch or change the
1967 YP/NIS domain name. These are system calls which exist on systems which
1968 have YP (aka NIS).
1970 * The time zone data files have been updated for the latest international
1971 conventions.
1973 * The SunRPC programs `portmap' and `rpcinfo' are now installed in
1974 $(sbindir) (usually /usr/local/sbin) instead of $(bindir).
1975 \f
1976 Version 1.08
1978 * The C library now includes support for Sun RPC, from Sun's free
1979 RPCSRC-4.0 distribution. The `portmap', `rpcinfo', and `rpcgen' programs
1980 are included. (There is still no support for YP.)
1982 * Tom Quinn has contributed a port of the C library to SGI machines running
1983 Irix 4 (mips-sgi-irix4).
1985 * The new `lockf' function is a simplified interface to the locking
1986 facilities of `fcntl', included for compatibility.
1988 * New time functions `timegm', `timelocal', and `dysize' for compatibility.
1990 * New header file <sys/timeb.h> and new function `ftime' for compatibility.
1992 * New header files <poll.h> and <sys/poll.h> and new function `poll' for
1993 compatibility.
1995 * The error message printed by `assert' for a failed assertion now includes
1996 the name of the program (if using GNU ld) and the name of the calling
1997 function (with versions of GCC that support this).
1999 * The `psignal' function is now declared in <signal.h>, not <stdio.h>.
2001 * The library now includes the <sys/mman.h> header file and memory
2002 management functions `mmap', `munmap', `mprotect', `msync', and
2003 `madvise', on systems that support those facilities.
2005 * The interface for `mcheck' has changed slightly: the function called to
2006 abort the program when an allocation inconsistency is detected now takes
2007 an argument that indicates the type of failure. The new function
2008 `mprobe' lets you request a consistency check for a particular block at
2009 any time (checks are normally done only when you call `free' or `realloc'
2010 on a block).
2012 * It is now possible to easily cross-compile the C library, building on one
2013 system a library to run on another machine and/or operating system. All
2014 you need to do is set the variable `HOST_CC' in `configparms' to the
2015 native compiler for programs to run on the machine you are building on (a
2016 few generator programs are used on Unix systems); set `CC' to the
2017 cross-compiler.
2019 * The new function `fexecve' (only implemented on the GNU system) executes
2020 a program file given a file descriptor already open on the file.
2021 \f
2022 Version 1.07
2024 * Brendan Kehoe has contributed most of a port to the DEC Alpha
2025 running OSF/1 (alpha-dec-osf1). He says it is 75% complete.
2027 * You can set the variable `libprefix' in `configparms' to specify a prefix
2028 to be prepended to installed library files; this makes it easy to install
2029 the GNU C library to be linked as `-lgnuc' or whatever.
2031 * The new `stpncpy' is a cross between `stpcpy' and `strncpy': It
2032 copies a limited number of characters from a string, and returns the
2033 address of the last character written.
2035 * You no longer need to check for whether the installed `stddef.h' is
2036 compatible with the GNU C library. configure now checks for you.
2038 * You can now define a per-stream `fileno' function to convert the
2039 stream's cookie into an integral file descriptor.
2041 * ``malloc (0)'' no longer returns a null pointer. Instead, it
2042 allocates zero bytes of storage, and returns a unique pointer which
2043 you can pass to `realloc' or `free'. The behavior is undefined if
2044 you dereference this pointer.
2046 * The C library now runs on Sony NEWS m68k machines running either
2047 NewsOS 3 or NewsOS 4.
2049 * The new `syscall' function is a system-dependent primitive function
2050 for invoking system calls. It has the canonical behavior on Unix
2051 systems, including unreliable return values for some calls (such as
2052 `pipe', `fork' and `getppid').
2054 * The error code `EWOULDBLOCK' is now obsolete; it is always defined
2055 to `EAGAIN', which is the preferred name. On systems whose kernels
2056 use two distinct codes, the C library now translates EWOULDBLOCK to
2057 EAGAIN in every system call function.
2058 \f
2059 Version 1.06
2061 * The GNU C Library Reference Manual is now distributed with the library.
2062 `make dvi' will produce a DVI file of the printed manual.
2063 `make info' will produce Info files that you can read on line using C-h i
2064 in Emacs or the `info' program.
2065 Please send comments on the manual to bug-glibc-manual@gnu.org.
2067 * The library now supports SVR4 on i386s (i386-unknown-sysv4).
2069 * Brendan Kehoe has contributed a port to Sun SPARCs running Solaris 2.
2071 * Jason Merrill has contributed a port to the Sequent Symmetry running
2072 Dynix version 3 (i386-sequent-dynix).
2074 * The library has been ported to i386s running SCO 3.2.4 (also known as SCO
2075 ODT 2.0; i386-unknown-sco3.2.4) or SCO 3.2 (i386-unknown-sco3.2).
2077 * New function `memory_warnings' lets you arrange to get warnings when
2078 malloc is running out of memory to allocate, like Emacs gives you.
2080 * The C library now contains the relocating allocator used in Emacs 19 for
2081 its editing buffers. This allocator (ralloc) minimizes allocation
2082 overhead and fragmentation by moving allocated regions around whenever it
2083 needs to. You always refer to a ralloc'd region with a "handle" (a
2084 pointer to a pointer--an object of type `void **').
2086 * There is a new `printf' format: `%m' gives you the string corresponding
2087 to the error code in `errno'.
2089 * In `scanf' formats, you can now use `%as' or `%a[' to do the normal `%s'
2090 or `%[' conversion, but instead of filling in a fixed-sized buffer you
2091 pass, the `a' modifier says to fill in a `char **' you pass with a
2092 malloc'd string.
2094 * The `fnmatch' function supports the new flag bits `FNM_LEADING_DIR' and
2095 `FNM_CASEFOLD'. `FNM_LEADING_DIR' lets a pattern like `foo*' match a
2096 name like `foo/bar'. `FNM_CASEFOLD' says to ignore case in matching.
2098 * `mkstemp' is a traditional Unix function to atomically create and open a
2099 uniquely-named temporary file.
2100 \f
2101 Version 1.05
2103 * The standard location for the file that says what the local timezone is
2104 has changed again. It is now `/usr/local/etc/localtime' (or more
2105 precisely, `${prefix}/etc/localtime') rather than `/etc/localtime'.
2107 * The distribution no longer contains any files with names longer than 14
2108 characters.
2110 * `struct ttyent' has two new flag bits: TTY_TRUSTED and TTY_CONSOLE.
2111 These are set by the new `trusted' and `console' keywords in `/etc/ttys'.
2113 * New functions `ttyslot' and `syslog' from 4.4 BSD.
2114 \f
2115 Version 1.04
2117 * The configuration process has changed quite a bit. The `configure'
2118 script is now used just like the configuration scripts for other GNU
2119 packages. The `sysdeps' directory hierarchy is much rearranged.
2120 The file `INSTALL' explains the new scheme in detail.
2122 * The header files no longer need to be processed into ANSI C and
2123 traditional C versions. There is just one set of files to install, and
2124 it will work with ANSI or old C compilers (including `gcc -traditional').
2126 * Brendan Kehoe and Ian Lance Taylor have ported the library to the
2127 MIPS DECStation running Ultrix 4.
2129 * The Sun 4 startup code (crt0) can now properly load SunOS 4 shared libraries.
2130 Tom Quinn contributed the initial code. The GNU C library can NOT yet be
2131 made itself into a shared library.
2133 * Yet further improved support for the i386, running 4.3 BSD-like systems
2134 (such as Mach 3 with the Unix single-server), or System V.
2136 * New function `strncasecmp' to do case-insensitive string comparison
2137 with limited length.
2139 * New function `strsep' is a reentrant alternative to `strtok'.
2141 * New functions `scandir' and `alphasort' for searching directories.
2143 * New function `setenv' is a better interface to `putenv'.
2145 * Ian Lance Taylor has contributed an implementation of the SVID `ftw'
2146 function for traversing a directory tree.
2148 * The GNU obstack package is now also part of the C library.
2149 The new function `open_obstack_stream' creates a stdio stream that
2150 writes onto an obstack; `obstack_printf' and `obstack_vprintf' do
2151 formatted output directly to an obstack.
2153 * Miscellaneous new functions: reboot, nice, sigaltstack (4.4 BSD only),
2154 cfmakeraw, getusershell, getpass, swab, getttyent, seteuid, setegid.
2156 * `FNM_FILE_NAME' is another name for `FNM_PATHNAME', used with `fnmatch'.
2158 * The new functions `strfry' and `memfrob' do mysterious and wonderful
2159 things to your strings.
2161 * There are some new test programs: test-fseek, testmb, and testrand.
2163 * Some work has been done to begin porting the library to 4.4 BSD and Linux.
2164 These ports are not finished, but are a good starting place for really
2165 supporting those systems.
2167 * `/etc/localtime' is now the standard location for the file that says what
2168 the local timezone is, rather than `/usr/local/lib/zoneinfo/localtime'.
2169 This follows the general principle that `/etc' is the place for all local
2170 configuration files.
2172 * The C library header files now use `extern "C"' when used by the C++
2173 compiler, so the C library should now work with C++ code.
2175 * The header file <bstring.h> is gone. <string.h> now declares bcopy,
2176 bcmp, bzero, and ffs. (Update: nowadays these functions are declared
2177 in <strings.h>.)
2179 * Mike Haertel (of GNU e?grep and malloc fame) has written a new sorting
2180 function which uses the `merge sort' algorithm, and is said to be
2181 significantly faster than the old GNU `qsort' function. Merge sort is
2182 now the standard `qsort' function. The new algorithm can require a lot
2183 of temporary storage; so, the old sorting function is called when the
2184 required storage is not available.
2186 * The C library now includes Michael Glad's Ultra Fast Crypt, which
2187 provides the Unix `crypt' function, plus some other entry points.
2189 * The code and header files taken from 4.4 BSD have been updated with the
2190 latest files released from Berkeley.
2191 \f
2192 ----------------------------------------------------------------------
2193 Copyright information:
2195 Copyright (C) 1992-2012 Free Software Foundation, Inc.
2197 Permission is granted to anyone to make or distribute verbatim copies
2198 of this document as received, in any medium, provided that the
2199 copyright notice and this permission notice are preserved,
2200 thus giving the recipient permission to redistribute in turn.
2202 Permission is granted to distribute modified versions
2203 of this document, or of portions of it,
2204 under the above conditions, provided also that they
2205 carry prominent notices stating who last changed them.
2206 \f
2207 Local variables:
2208 version-control: never
2209 fill-column: 76
2210 End: