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1 GNU C Library NEWS -- history of user-visible changes.
2 Copyright (C) 1992-2013 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 2.19
10 * The following bugs are resolved with this release:
12 13985, 14155, 14547, 14699, 15400, 15427, 15522, 15531, 15532, 15608,
13 15609, 15610, 15640, 15681, 15736, 15748, 15749, 15754, 15797, 15844,
14 15849, 15855, 15856, 15857, 15859, 15867, 15886, 15887, 15890, 15892,
15 15893, 15895, 15897, 15905, 15909, 15919, 15921, 15923, 15939, 15941,
16 15963, 15966.
18 * CVE-2012-4412 The strcoll implementation caches indices and rules for
19 large collation sequences to optimize multiple passes. This cache
20 computation may overflow for large collation sequences and may cause a
21 stack or buffer overflow. This is now fixed to use a slower algorithm
22 which does not use a cache if there is an integer overflow.
24 * CVE-2012-4424 The strcoll implementation uses malloc to cache indices and
25 rules for large collation sequences to optimize multiple passes and falls
26 back to alloca if malloc fails, resulting in a possible stack overflow.
27 The implementation now falls back to an uncached collation sequence lookup
28 if malloc fails.
30 * CVE-2013-4788 The pointer guard used for pointer mangling was not
31 initialized for static applications resulting in the security feature
32 being disabled. The pointer guard is now correctly initialized to a
33 random value for static applications. Existing static applications need
34 to be recompiled to take advantage of the fix (bug 15754).
36 * CVE-2013-4237 The readdir_r function could write more than NAME_MAX bytes
37 to the d_name member of struct dirent, or omit the terminating NUL
38 character. (Bugzilla #14699).
40 * CVE-2013-4332 The pvalloc, valloc, memalign, posix_memalign and
41 aligned_alloc functions could allocate too few bytes or corrupt the
42 heap when passed very large allocation size values (Bugzilla #15855,
43 #15856, #15857).
45 * New locales: ak_GH, cmn_TW, hak_TW, lzh_TW, nan_TW, quz_PE.
47 * Substantially revised locales: gd_GB, ht_HT
49 * The LC_ADDRESS field was updated to support country_car for almost all
50 supported locales.
52 * ISO 1427 definitions were updated.
54 * The localedef utility now supports --big-endian and --little-endian
55 command-line options to generate locales for a different system from that
56 for which the C library was built.
58 * The configure option --disable-versioning has been removed. Builds with
59 --disable-versioning had not worked for several years.
61 * ISO 639 definitions were updated for Chiga (cgg) and Chinese (gan, hak, czh,
62 cjy, lzh, cmn, mnp, cdo, czo, cpx, wuu, hsn, yue).
64 * SystemTap probes for malloc have been introduced.
66 \f
67 Version 2.18
69 * The following bugs are resolved with this release:
71 2546, 2560, 5159, 6809, 7006, 10060, 10062, 10283, 10357, 10686, 11120,
72 11561, 12310, 12387, 12492, 12515, 12723, 13550, 13889, 13951, 13988,
73 14142, 14176, 14200, 14256, 14280, 14293, 14317, 14327, 14478, 14496,
74 14582, 14686, 14812, 14888, 14894, 14907, 14908, 14909, 14920, 14952,
75 14964, 14981, 14982, 14985, 14991, 14994, 14996, 15000, 15003, 15006,
76 15007, 15014, 15020, 15022, 15023, 15036, 15054, 15055, 15062, 15078,
77 15084, 15085, 15086, 15100, 15160, 15214, 15221, 15232, 15234, 15283,
78 15285, 15287, 15304, 15305, 15307, 15309, 15327, 15330, 15335, 15336,
79 15337, 15339, 15342, 15346, 15359, 15361, 15366, 15380, 15381, 15394,
80 15395, 15405, 15406, 15409, 15416, 15418, 15419, 15423, 15424, 15426,
81 15429, 15431, 15432, 15441, 15442, 15448, 15465, 15480, 15485, 15488,
82 15490, 15492, 15493, 15497, 15506, 15529, 15536, 15553, 15577, 15583,
83 15618, 15627, 15631, 15654, 15655, 15666, 15667, 15674, 15711, 15755,
84 15759.
86 * CVE-2013-2207 Incorrectly granting access to another user's pseudo-terminal
87 has been fixed by disabling the use of pt_chown (Bugzilla #15755).
88 Distributions can re-enable building and using pt_chown via the new configure
89 option `--enable-pt_chown'. Enabling the use of pt_chown carries with it
90 considerable security risks and should only be used if the distribution
91 understands and accepts the risks.
93 * CVE-2013-0242 Buffer overrun in regexp matcher has been fixed (Bugzilla
94 #15078).
96 * CVE-2013-1914 Stack overflow in getaddrinfo with many results has been
97 fixed (Bugzilla #15330).
99 * Add support for calling C++11 thread_local object destructors on thread
100 and program exit. This needs compiler support for offloading C++11
101 destructor calls to glibc.
103 * Improved worst case performance of libm functions with double inputs and
104 output.
106 * Support for priority inherited mutexes in pthread condition variables on
107 non-x86 architectures.
109 * Port to Xilinx MicroBlaze contributed by David Holsgrove.
111 * Optimized string functions for AArch64. Implemented by Marcus Shawcroft.
113 * Optimized string functions for ARM. Implemented by Will Newton and
114 Richard Henderson.
116 * Optimized libm functions for SPARC. Implemented by David S. Miller.
118 * Support for building more of ARM glibc as Thumb-2 code. Implemented by
119 Richard Henderson.
121 * Support for building most of MIPS glibc as MIPS16 code. Implemented by
122 Chung-Lin Tang, Maciej W. Rozycki and Maxim Kuvyrkov.
124 * Added a benchmark framework to track performance of functions in glibc.
126 * New <math.h> macro named issignaling to check for a signaling NaN (sNaN).
127 It is based on draft TS 18661 and currently enabled as a GNU extension.
129 * On Linux, the clock function now uses the clock_gettime system call
130 for improved precision, rather than old times system call.
132 * Added new API functions pthread_getattr_default_np and
133 pthread_setattr_default_np to get and set the default pthread
134 attributes of a process.
136 * Added support for TSX lock elision for pthread mutexes on i386 and x86-64.
137 This may improve lock scaling of existing programs on TSX capable systems.
138 When the --enable-lock-elision=yes parameter is specified at configure
139 time lock elision will be enabled by default for all PTHREAD_MUTEX_DEFAULT
140 mutexes.
142 * Support added for AT_HWCAP2 (to coincide with Linux kernel 3.10
143 availability). Implemented by Ryan S. Arnold.
145 * Support added for POWER8 platform. Implemented by Ryan S. Arnold.
146 \f
147 Version 2.17
149 * The following bugs are resolved with this release:
151 1349, 3439, 3479, 3665, 5044, 5246, 5298, 5400, 6530, 6677, 6778, 6808,
152 9685, 9914, 10014, 10038, 10114, 10191, 10631, 10873, 11438, 11607, 11638,
153 11741, 12140, 13013, 13412, 13542, 13601, 13603, 13604, 13629, 13679,
154 13696, 13698, 13717, 13741, 13759, 13761, 13763, 13881, 13939, 13950,
155 13952, 13966, 14042, 14047, 14090, 14150, 14151, 14152, 14154, 14157,
156 14166, 14173, 14195, 14197, 14237, 14246, 14251, 14252, 14283, 14298,
157 14303, 14307, 14328, 14331, 14336, 14337, 14347, 14349, 14368, 14376,
158 14417, 14447, 14459, 14476, 14477, 14501, 14505, 14510, 14516, 14518,
159 14519, 14530, 14532, 14538, 14543, 14544, 14545, 14557, 14562, 14568,
160 14576, 14579, 14583, 14587, 14595, 14602, 14610, 14621, 14638, 14645,
161 14648, 14652, 14660, 14661, 14669, 14672, 14683, 14694, 14716, 14719,
162 14743, 14767, 14783, 14784, 14785, 14793, 14796, 14797, 14801, 14803,
163 14805, 14807, 14811, 14815, 14821, 14822, 14824, 14828, 14831, 14833,
164 14835, 14838, 14856, 14863, 14865, 14866, 14868, 14869, 14871, 14872,
165 14879, 14889, 14893, 14898, 14914.
167 * Optimization of memcpy for MIPS.
169 * CVE-2011-4609 svc_run() produces high cpu usage when accept fails with
170 EMFILE has been fixed (Bugzilla #14889).
172 * The add-on ports collection is now distributed in the "ports" subdirectory
173 of the main GNU C Library distribution, rather than separately.
175 * Port to ARM AArch64 contributed by Linaro.
177 * Support for STT_GNU_IFUNC symbols added for s390 and s390x.
178 Optimized versions of memcpy, memset, and memcmp added for System z10 and
179 zEnterprise z196.
180 Implemented by Andreas Krebbel.
182 * The new function secure_getenv allows secure access to the environment,
183 returning NULL if running in a SUID/SGID process. This function replaces
184 the internal function __secure_getenv.
186 * SystemTap static probes have been added into the dynamic linker.
187 Implemented by Gary Benson.
189 * Optimizations of string functions strstr, strcasestr and memmem.
190 Implemented by Maxim Kuvyrkov.
192 * The minimum Linux kernel version that this version of the GNU C Library
193 can be used with is 2.6.16.
195 * Optimizations of string functions memchr, wcschr, wcscpy, and wcsrchr for
196 powerpc POWER7. Implemented by Will Schmidt.
198 * New configure option --disable-nscd builds the C library such that it
199 never attempts to contact the Name Service Caching Daemon (nscd).
200 New configure option --disable-build-nscd avoids building nscd itself;
201 this is the default if --disable-nscd is used.
203 * Improved support for cross-compilation, including cross-testing and
204 bootstrap builds without a previously built glibc.
206 * Several testsuite tests are now able to test multiple IFUNC variants of an
207 interface, rather than just testing the one that would be chooen by
208 default.
210 * New configure options --with-bugurl and --with-pkgversion, for
211 distributors to use to embed their bug-reporting and package version
212 information in --help and --version output.
214 * The ttyname and ttyname_r functions on Linux now fall back to searching for
215 the tty file descriptor in /dev/pts or /dev if /proc is not available. This
216 allows creation of chroots without the procfs mounted on /proc.
218 * The `crypt' function now fails if passed salt bytes that violate the
219 specification for those values. On Linux, the `crypt' function will
220 consult /proc/sys/crypto/fips_enabled to determine if "FIPS mode" is
221 enabled, and fail on encrypted strings using the MD5 or DES algorithm
222 when the mode is enabled.
224 * The `clock_*' suite of functions (declared in <time.h>) is now available
225 directly in the main C library. Previously it was necessary to link with
226 -lrt to use these functions. This change has the effect that a
227 single-threaded program that uses a function such as `clock_gettime' (and
228 is not linked with -lrt) will no longer implicitly load the pthreads
229 library at runtime and so will not suffer the overheads associated with
230 multi-thread support in other code such as the C++ runtime library.
232 * New locales: ayc_PE, doi_IN, ia_FR, mni_IN, nhn_MX, niu_NU, niu_NZ,
233 sat_IN, and szl_PL.
234 \f
235 Version 2.16
237 * The following bugs are resolved with this release:
239 174, 208, 350, 369, 411, 706, 766, 887, 2074, 2541, 2547, 2548, 2550,
240 2551, 2552, 2553, 2554, 2562, 2563, 2565, 2566, 2570, 2576, 2636, 2678,
241 3335, 3440, 3748, 3768, 3866, 3868, 3906, 3976, 3992, 4026, 4108, 4596,
242 4822, 5077, 5461, 5805, 5993, 6471, 6486, 6578, 6649, 6730, 6770, 6794,
243 6884, 6890, 6894, 6895, 6907, 6911, 6959, 7064, 9739, 9902, 10110, 10135,
244 10140, 10153, 10210, 10254, 10346, 10375, 10545, 10716, 10846, 11174,
245 11261, 11322, 11365, 11451, 11494, 11521, 11677, 11837, 11959, 12047,
246 12097, 12193, 12194, 12297, 12298, 12301, 12340, 12354, 12416, 12495,
247 13058, 13223, 13361, 13525, 13526, 13527, 13528, 13529, 13530, 13531,
248 13532, 13533, 13547, 13551, 13552, 13553, 13555, 13556, 13559, 13563,
249 13566, 13576, 13579, 13583, 13592, 13594, 13613, 13618, 13637, 13656,
250 13658, 13673, 13691, 13695, 13704, 13705, 13706, 13718, 13726, 13738,
251 13739, 13743, 13750, 13758, 13760, 13761, 13775, 13786, 13787, 13792,
252 13806, 13824, 13840, 13841, 13844, 13846, 13848, 13851, 13852, 13854,
253 13871, 13872, 13873, 13879, 13882, 13883, 13884, 13885, 13886, 13892,
254 13895, 13908, 13910, 13911, 13912, 13913, 13914, 13915, 13916, 13917,
255 13918, 13919, 13920, 13921, 13922, 13923, 13924, 13926, 13927, 13928,
256 13938, 13941, 13942, 13954, 13955, 13956, 13963, 13967, 13968, 13970,
257 13973, 13979, 13983, 13986, 13996, 14012, 14027, 14033, 14034, 14036,
258 14040, 14043, 14044, 14048, 14049, 14050, 14053, 14055, 14059, 14064,
259 14075, 14080, 14083, 14103, 14104, 14109, 14112, 14117, 14122, 14123,
260 14134, 14153, 14183, 14188, 14199, 14210, 14218, 14229, 14241, 14273,
261 14277, 14278.
263 * Support for the x32 ABI on x86-64 added. The x32 target is selected by
264 configuring glibc with:
265 BUILD_CC='gcc' CC='gcc -mx32' CXX='g++ -mx32'
266 Visit <http://sites.google.com/site/x32abi/> for more x32 ABI info.
267 Implemented by H.J. Lu.
269 * ISO C11 support:
271 + define static_assert
273 + do not declare gets
275 + declare at_quick_exit and quick_exit also for ISO C11
277 + aligned_alloc. NB: The code is deliberately allows the size parameter
278 to not be a multiple of the alignment. This is a moronic requirement
279 in the standard but it is only a requirement on the caller, not the
280 implementation.
282 + timespec_get added
284 + uchar.h support added
286 + CMPLX, CMPLXF, CMPLXL added
288 Implemented by Ulrich Drepper.
290 * Support for the IA-64 has been moved to ports.
292 * Remove support for anything but ELF binary format
294 * Checking versions of poll, ppoll added.
295 Implemented by Ulrich Drepper.
297 * More generic and 64-bit performance optimizations to math functions.
298 Implemented by Ulrich Drepper.
300 * New configure option --enable-obsolete-rpc makes the deprecated RPC
301 headers and functions available at compile time as they were before
302 version 2.14. This option will be removed at some time in the future
303 after the TI-RPC library becomes fully sufficient for the needs of
304 existing applications.
306 * Compatibility code for Linux kernel versions before 2.4 has been removed.
307 Note that glibc is not expected to work with any Linux kernel version
308 before 2.6.
310 * New header <sys/auxv.h> and function getauxval allowing easy access to
311 the AT_* key-value pairs passed from the Linux kernel. The header also
312 defines the HWCAP_* bits associated with the AT_HWCAP key.
314 * New locales: mag_IN
316 * New configure option --enable-systemtap builds SystemTap static probes
317 into libc for setjmp and longjmp and into libpthread for various operations.
318 So far the setjmp/longjmp probes and some of the libpthread probes are
319 provided only for i*86 and x86_64.
320 Implemented by Roland McGrath and Rayson Ho.
322 * Optimized expf for x86-32 and x86-64. Implemented by Liubov Dmitrieva.
324 * More optimized functions for PowerPC. Implemented by Adhemerval Zanella
325 and Will Schmidt.
327 * More optimized functions for SPARC. Implemented by David S. Miller.
329 * Improved support for cross-compilation, especially bootstrap builds
330 without a previously built glibc.
332 * Ports for the TILE-Gx and TILEPro families of processors. Contributed by
333 Chris Metcalf from Tilera.
335 * Support for the old ARM ABI has been removed from ports. Only the EABI is
336 now supported for ARM processors.
338 * The hard-float variant of the ARM EABI now uses /lib/ld-linux-armhf.so.3
339 as the name of the dynamic linker, to distinguish it from the
340 /lib/ld-linux.so.3 dynamic linker used for the base EABI.
342 * Support for CRIS has been removed from ports.
344 * A new class of installed header has been documented for low-level
345 platform-specific functionality. PowerPC added the first instance with a
346 function to provide time base register access. Contributed by Tulio
347 Magno Quites Machado Filho.
349 * ix86 configurations now install header files that are consistent with
350 what x86-64 configurations install. These same header files can be used
351 for -m32, -m64, or -mx32 builds.
352 Contributed by H.J. Lu.
354 * Math library bug fixes. A thorough audit of all open math library bugs was
355 conducted by Joseph Myers. Significant progress was made on many math
356 library bugs resulting in more accurate exceptions and function results.
357 Many thanks to all those that contributed including Andreas Jaeger for his
358 patch review and work on the x87 trigonometric instruction issues.
360 * Timezone data is no longer installed. Timezone-related binaries and scripts
361 will continue to be installed. Users should obtain their timezone data from
362 their distribution provider or from the tzdata package at
363 <ftp://munnari.oz.au/pub/>.
364 \f
365 Version 2.15
367 * The following bugs are resolved with this release:
369 6779, 6783, 9696, 10103, 10709, 11589, 11929, 12403, 12786, 12840, 12847,
370 12868, 12852, 12874, 12885, 12892, 12906, 12907, 12922, 12935, 12962,
371 13007, 13021, 13061, 13062, 13067, 13068, 13085, 13088, 13090, 13092,
372 13096, 13114, 13118, 13123, 13134, 13138, 13147, 13150, 13166, 13179,
373 13185, 13189, 13192, 13268, 13276, 13282, 13291, 13305, 13328, 13335,
374 13337, 13344, 13358, 13367, 13413, 13416, 13423, 13439, 13446, 13472,
375 13484, 13506, 13515, 13523, 13524, 13538, 13540
377 * New program pldd to list loaded object of a process
378 Implemented by Ulrich Drepper.
380 * Add nss_db support back to glibc. No more dependency on Berkeley db
381 and support for initgroups lookups.
382 Implemented by Ulrich Drepper.
384 * Optimized strcpy, strncpy, stpcpy, stpncpy for SSE2 and SSSE3 on x86-32.
385 Contributed by HJ Lu.
387 * Improved strcpy, strncpy, stpcpy, stpncpy for SSE2 and SSSE3 on x86-64.
388 Contributed by HJ Lu.
390 * Optimized strcat, strncat on x86-64 and optimized wcscmp, wcslen, strnlen
391 on x86-32 and x86-64.
392 Contributed by Liubov Dmitrieva.
394 * Optimized strchr and strrchr for SSE on x86-32.
395 Contributed by Liubov Dmitrieva.
397 * Optimized memchr, memrchr, rawmemchr, memcmp, wmemcmp, wcschr, wcscpy
398 for x86-64 and x86-32.
399 Contributed by Liubov Dmitrieva.
401 * New interfaces: scandirat, scandirat64
402 Implemented by Ulrich Drepper.
404 * Checking versions of FD_SET, FD_CLR, and FD_ISSET added.
405 Implemented by Ulrich Drepper.
407 * nscd now also caches the netgroup database.
408 Implemented by Ulrich Drepper.
410 * Integrate libm with gcc's -ffinite-math-only option.
411 Implemented by Ulrich Drepper.
413 * Lots of generic, 64-bit, and x86-64-specific performance optimizations
414 to math functions. Implemented by Ulrich Drepper.
416 * Optimized strcasecmp and strncasecmp for AVX on x86-64.
417 Implemented by Ulrich Drepper.
419 * New Linux interfaces: process_vm_readv, process_vm_writev
421 * Optimized strcasecmp and strncasecmp for SSSE3 and SSE4.2 on x86-32.
422 Implemented by Ulrich Drepper.
424 * Optimized nearbyint and strcasecmp for PPC.
425 Implemented by Adhemerval Zanella.
427 * New locales: bho_IN, unm_US, es_CU, ta_LK
428 \f
429 Version 2.14
431 * The following bugs are resolved with this release:
433 386, 6420, 7101, 9730, 9732, 9809, 10138, 10149, 10157, 11099, 11257,
434 11258, 11487, 11532, 11558, 11578, 11634, 11653, 11668, 11697, 11724,
435 11781, 11799, 11820, 11837, 11857, 11869, 11892, 11895, 11901, 11945,
436 11947, 11952, 11987, 12052, 12083, 12158, 12178, 12200, 12346, 12350,
437 12393, 12420, 12432, 12445, 12449, 12453, 12454, 12460, 12469, 12489,
438 12509, 12510, 12511, 12518, 12527, 12541, 12545, 12551, 12582, 12583,
439 12587, 12597, 12601, 12611, 12625, 12626, 12631, 12650, 12653, 12655,
440 12660, 12671, 12681, 12684, 12685, 12711, 12713, 12714, 12717, 12723,
441 12724, 12734, 12738, 12746, 12766, 12775, 12777, 12782, 12788, 12792,
442 12795, 12811, 12813, 12814, 12841
444 * The RPC implementation in libc is obsoleted. Old programs keep working
445 but new programs cannot be linked with the routines in libc anymore.
446 Programs in need of RPC functionality must be linked against TI-RPC.
447 The TI-RPC implementation is IPv6 enabled and there are other benefits.
449 Visible changes of this change include (obviously) the inability to link
450 programs using RPC functions without referencing the TI-RPC library and the
451 removal of the RPC headers from the glibc headers.
452 Implemented by Ulrich Drepper.
454 * New Linux interfaces: clock_adjtime, name_to_handle_at, open_by_handle_at,
455 syncfs, setns, sendmmsg
457 * New locales: os_RU, bem_ZA, en_ZA, ff_SN, sw_KE, sw_TZ, lb_LU, wae_CH,
458 yue_HK, lij_IT, mhr_RU
460 * New encodings: CP770, CP771, CP772, CP773, CP774
462 * New program sotruss to trace calls through PLTs
463 Implemented by Ulrich Drepper.
465 * The malloc hook implementation is marked deprecated and will be removed
466 from the default implementation in the next version. The design never
467 worked ever since the introduction of threads. Even programs which do
468 not create threads themselves can use multiple threads created internally.
469 \f
470 Version 2.13
472 * The following bugs are resolved with this release:
474 3268, 6812, 7066, 10085, 10484, 10563, 10851, 11149, 11155, 11577, 11611,
475 11640, 11655, 11701, 11840, 11856, 11883, 11903, 11904, 11968, 11979,
476 12005, 12037, 12067, 12077, 12078, 12092, 12093, 12107, 12108, 12113,
477 12140, 12159, 12167, 12191, 12194, 12201, 12204, 12205, 12207, 12348,
478 12378, 12394, 12397
480 * New Linux interfaces: prlimit, prlimit64, fanotify_init, fanotify_mark
482 * POWER7 optimizations: memset, memcmp, strncmp
484 * New optimized string functions for x86-64: strnlen (SSE2),
485 strcasecmp (SSE2, SSSE3, SSE4.2), strncasecmp (SSE2, SSSE3, SSE4.2)
486 Implemented by Ulrich Drepper.
487 \f
488 Version 2.12
490 * The following bugs are resolved with this release:
492 3662, 4457, 5553, 10162, 10401, 10414, 10554, 10824, 10864, 10915,
493 10918, 10936, 10939, 10958, 10968, 10969, 10972, 10992, 11000, 11001,
494 11007, 11010, 11027, 11039, 11040, 11041, 11043, 11046, 11056, 11070,
495 11093, 11115, 11125, 11126, 11127, 11134, 11141, 11149, 11183, 11184,
496 11185, 11186, 11187, 11188, 11189, 11190, 11191, 11192, 11193, 11194,
497 11200, 11230, 11235, 11242, 11254, 11258, 11271, 11272, 11276, 11279,
498 11287, 11292, 11319, 11332, 11333, 11387, 11389, 11390, 11394, 11397,
499 11410, 11438, 11449, 11470, 11471, 11520, 11537, 11538, 11571
501 * New interfaces: pthread_getname_np, pthread_setname_np
503 * New Linux interface: recvmmsg
505 * STT_GNU_IFUNC implemented for Sparc by David Miller.
507 * The dynamic linker now recognizes supported ABI versions from the
508 EI_ABIVERSION field in the ELF header.
509 Implemented by Ulrich Drepper.
511 * New NIS mode selector ADJUNCT_AS_SHADOW. The passwd.adjunct.byname table
512 will not be used to fill in password fields in the passwd.byname replies.
513 Instead it is used to synthesize the shadow.byname table, should it be
514 missing. This is a useful mode in some installations involving Solaris.
515 Implemented by Ulrich Drepper.
517 * New locales: kok_IN, sq_MK, cv_RU
518 \f
519 Version 2.11
521 * The following bugs are resolved with this release:
523 3270, 7094, 9924, 9986, 10011, 10085, 10107, 10159, 10162, 10166, 10183,
524 10195, 10196, 10200, 10203, 10207, 10211, 10213, 10217, 10221, 10229,
525 10262, 10286, 10312, 10315, 10319, 10349, 10360, 10391, 10402, 10416,
526 10418, 10422, 10425, 10446, 10448, 10452, 10540, 10553, 10560, 10564,
527 10609, 10643, 10692, 10713, 10717, 10730, 10731, 10742, 10780, 10784,
528 10789, 10817, 10823, 10840, 10847
530 * New interfaces: execvpe, pthread_sigqueue, mkstemps, mkstemps64, mkostemps,
531 mkostemps64
532 Implemented by Ulrich Drepper.
534 * Checking version of longjmp added that fails if an uninitialized stack
535 frame would be created. Implemented by Ulrich Drepper.
537 * STT_GNU_IFUNC is now supported in static executables.
538 Implemented by H.J. Lu.
540 * STT_GNU_IFUNC implemented for PPC by Alan Modra.
542 * New optimized string functions for x86-64: strstr, strcasestr, memcmp,
543 strcspn, strpbrk, strspn, strcpy, stpcpy, strncpy, strcmp (SSE2, SSE4.2),
544 strncmp (SSE2, SSE4.2), strchr (SSE4.2), strrchr (SSE4.2).
545 Contributed by H.J. Lu.
547 strlen, rawmemchr, strcmp (SSSE3), strncmp (SSSE3).
548 Implemented by Ulrich Drepper.
550 * New optimized string functions for x86: strlen, strcspn, strspn, strpbrk,
551 strstr, strcasestr.
552 Contributed by H.J. Lu.
554 * Support for fma instruction in AVX on x86-64.
555 Implemented by H.J. Lu and Ulrich Drepper.
557 * AVX support in x86-64 auditing support in ld.so.
558 Implemented by H.J. Lu.
560 * STB_GNU_UNIQUE support added.
561 Implemented by Ulrich Drepper.
563 * Implement second fallback mode for optimized DNS lookup for even more
564 broken environments. If two requests from the same port are not
565 handled correctly close the socket and open a new one before sending
566 the second request. The 'single-request-reopen' option in /etc/resolv.conf
567 can be used to select this mode right away, instead of rediscovering the
568 necessity is every process again.
569 Implemented by Ulrich Drepper.
571 * New resolver flag RES_USE_DNSSEC to enable use of verified lookup.
572 Implemented by Adam Tkac.
574 * Optimized iconv conversions for S390x.
575 Implemented by Andreas Krebbel.
577 * Using condvars with PI mutexes is now more efficient due to kernel
578 support for requeueing to PI futexes. NPTL support added for x86-64.
579 Implemented by Ulrich Drepper.
581 * New locales: ps_AF, my_MM
582 \f
583 Version 2.10
585 * The following bugs are resolved with this release:
587 697, 5381, 5807, 6411, 6545, 7040, 7058, 7067, 7080, 7083, 7095, 7098,
588 9677, 9694, 9697, 9701, 9704, 9705, 9706, 9720, 9726, 9730, 9733, 9736,
589 9741, 9750, 9753, 9759, 9781, 9791, 9793, 9823, 9833, 9844, 9880, 9881,
590 9891, 9893, 9895, 9913, 9916, 9920, 9948, 9955, 9957, 9963, 9985, 10052,
591 10069, 10086, 10087, 10090, 10092, 10093, 10100, 10118, 10128
593 * New interfaces: preadv, preadv64, pwritev, pwritev64, malloc_info
594 Implemented by Ulrich Drepper.
596 * New Linux interfaces: accept4, fallocate, fallocate64.
597 Implemented by Ulrich Drepper.
599 * Correct declarations of string function when used in C++ code. This
600 could lead to compile errors for invalid C++ code.
602 * XPG7/POSIX 2008 compilation environment. Many GNU-specific functions are
603 now in POSIX.
605 * New POSIX 2008 interface: psiginfo
606 Implemented by Ulrich Drepper.
608 * New ISO C++1x interfaces: quick_exit, at_quick_exit
609 Implemented by Ulrich Drepper.
611 * Support for selecting between multiple function definitions at runtime
612 using STT_GNU_IFUNC symbols. Implemented by Ulrich Drepper.
614 * The libcrypt library can now use the hash function implementations in
615 NSS. Implemented by Ulrich Drepper.
617 * The malloc implementation can be compiled to be less memory efficient
618 but higher performing in multi-threaded programs.
619 Implemented by Ulrich Drepper.
621 * New locales: nan_TW@latin, ks_IN
623 * Faster strlen, strchr, strchrnul, strrchr, memchr, and rawmemchr for x86-64.
624 Implemented by Ulrich Drepper.
626 * Extended printf hook support. It is possible to use user-defined types
627 and extend existing format specifiers.
628 Implemented by Ulrich Drepper.
630 * Handling for group shadow files has been added.
631 Implemented by Ulrich Drepper.
633 * DNS IPv4-IPv6 parallel lookup now deals better with broken DNS
634 servers (the case, e.g., for some people using the built-in DNS
635 server in ADSL modems/routers). There is a once-per-process timeout
636 in case of a broken server. To avoid it, users can run nscd or put
637 'options single-request' in /etc/resolv.conf.
638 Implemented by Ulrich Drepper.
639 \f
640 Version 2.9
642 * The following bugs are resolved with this release:
644 3406, 5209, 5210, 5381, 5794, 5814, 5911, 6428, 6438, 6442, 6447, 6461,
645 6472, 6505, 6544, 6589, 6612, 6634, 6653, 6654, 6657, 6698, 6712, 6713,
646 6719, 6723, 6724, 6740, 6763, 6771, 6790, 6791, 6817, 6824, 6839, 6843,
647 6845, 6856, 6857, 6860, 6867, 6875, 6919, 6920, 6942, 6947, 6955, 6966,
648 6968, 6974, 6980, 6995, 7008, 7009, 7029
650 * Unified lookup for getaddrinfo: IPv4 and IPv6 addresses are now looked
651 up at the same time. Implemented by Ulrich Drepper.
653 * TLS descriptors for LD and GD on x86 and x86-64.
654 Implemented by Alexandre Oliva.
656 * getaddrinfo now handles DCCP and UDPlite.
657 Implemented by Ulrich Drepper.
659 * New fixed-size conversion macros: htobe16, htole16, be16toh, le16toh,
660 htobe32, htole32, be32toh, le32toh, htobe64, htole64, be64toh, le64toh.
661 Implemented by Ulrich Drepper.
663 * New implementation of memmem, strstr, and strcasestr which is O(n).
664 Implemented by Eric Blake.
666 * New Linux interfaces: inotify_init1, dup3, epoll_create1, pipe2
668 * Implement "e" option for popen to open file descriptor with the
669 close-on-exec flag set. Implemented by Ulrich Drepper.
671 * Implement "b" mode for fmemopen. In this mode writes writes don't
672 implicitly add a NUL byte and seeks from the end of the buffer really
673 use the buffer end, not the string length as the basis.
674 Implemented by Ulrich Drepper.
676 * Many functions, exported and internal, now atomically set the close-on-exec
677 flag when run on a sufficiently new kernel. Implemented by Ulrich Drepper.
679 * Sorting rules for some Indian languages (Kannada, Gurumukhi, Telugu,
680 Sinhala)
681 Implemented by Pravin Satpute.
683 * New locales: sd_IN, sd_IN@devanagari, ks_IN@devanagari, ht_HT, en_AG, nl_AW.
684 \f
685 Version 2.8
687 * The following bugs are resolved with this release:
689 2549, 3112, 4314, 4407, 4997, 5012, 5040, 5112, 5204, 5208, 5209, 5220,
690 5222, 5224, 5225, 5237, 5238, 5240, 5245, 5277, 5346, 5375, 5378, 5382,
691 5424, 5427, 5428, 5435, 5436, 5439, 5441, 5442, 5443, 5451, 5452, 5454,
692 5455, 5463, 5464, 5465, 5475, 5477, 5478, 5520, 5541, 5545, 5553, 5600,
693 5602, 5607, 5614, 5627, 5628, 5736, 5737, 5741, 5753, 5760, 5762, 5768,
694 5774, 5777, 5778, 5779, 5786, 5790, 5818, 5854, 5857, 5903, 5939, 5979,
695 5983, 5995, 5998, 6004, 6007, 6020, 6021, 6024, 6040, 6042
697 * New locales: bo_CN, bo_IN, shs_CA.
699 * New encoding: HP-ROMAN9, HP-GREEK8, HP-THAI8, HP-TURKISH8.
701 * Sorting rules for some Indian languages (Devanagari and Gujarati).
702 Implemented by Pravin Satpute.
704 * IPV6 addresses in /etc/resolv.conf can now have a scope ID
706 * nscd caches now all timeouts for DNS entries
707 Implemented by Ulrich Drepper.
709 * nscd is more efficient and wakes up less often.
710 Implemented by Ulrich Drepper.
712 * More checking functions: asprintf, dprintf, obstack_printf, vasprintf,
713 vdprintf, and obstack_vprintf.
714 Implemented by Jakub Jelinek.
716 * Faster memset for x86-64.
717 Implemented by Harsha Jagasia and H.J. Lu.
719 * Faster memcpy on x86.
720 Implemented by Ulrich Drepper.
722 * ARG_MAX is not anymore constant on Linux. Use sysconf(_SC_ARG_MAX).
723 Implemented by Ulrich Drepper.
725 * Faster sqrt and sqrtf implemention for some PPC variants.
726 Implemented by Steven Munroe.
727 \f
728 Version 2.7
730 * The following bugs are resolved with this release:
732 4125, 4126, 4178, 4359, 4407, 4512, 4514, 4525, 4554, 4556, 4557, 4566,
733 4582, 4586, 4588, 4599, 4610, 4647, 4702, 4705, 4726, 4745, 4772, 4773,
734 4775, 4776, 4792, 4813, 4814, 4816, 4833, 4858, 4860, 4896, 4905, 4925,
735 4936, 4937, 4938, 4941, 4946, 4963, 4972, 5010, 5028, 5043, 5058, 5063,
736 5071, 5103, 5104, 5112, 5113, 5184, 5186
738 * More checking functions: fread, fread_unlocked, open*, mq_open.
739 Implemented by Jakub Jelinek and Ulrich Drepper.
741 * Extend fortification to C++. Implemented by Jakub Jelinek.
743 * Implement 'm' modifier for scanf. Add stricter C99/SUS compliance
744 by not recognizing 'a' as a modifier when those specs are requested.
745 Implemented by Jakub Jelinek.
747 * PPC optimizations to math and string functions.
748 Implemented by Steven Munroe.
750 * New interfaces: mkostemp, mkostemp64. Like mkstemp* but allow additional
751 options to be passed. Implemented by Ulrich Drepper.
753 * More CPU set manipulation functions. Implemented by Ulrich Drepper.
755 * New Linux interfaces: signalfd, eventfd, eventfd_read, and eventfd_write.
756 Implemented by Ulrich Drepper.
758 * Handle private futexes in the NPTL implementation.
759 Implemented by Jakub Jelinek and Ulrich Drepper.
761 * Add support for O_CLOEXEC. Implement in Hurd. Use throughout libc.
762 Implemented by Roland McGrath and Ulrich Drepper.
764 * Linux/x86-64 vDSO support. Implemented by Ulrich Drepper.
766 * SHA-256 and SHA-512 based password encryption.
767 Implemented by Ulrich Drepper.
769 * New locales: ber_DZ, ber_MA, en_NG, fil_PH, fur_IT, fy_DE, ha_NG, ig_NG,
770 ik_CA, iu_CA, li_BE, li_NL, nds_DE, nds_NL, pap_AN, sc_IT, tk_TM, ug_CN,
771 yo_NG.
773 + New iconv modules: MAC-CENTRALEUROPE, ISO-8859-9E, KOI8-RU.
774 Implemented by Ulrich Drepper.
775 \f
776 Version 2.6
778 * The following bugs are resolved with this release:
780 3156, 3213, 3285, 3291, 3306, 3313, 3320, 3322, 3325, 3326, 3334, 3348,
781 3352, 3363, 3369, 3426, 3427, 3429, 3451, 3458, 3465, 3480, 3483, 3493,
782 3514, 3515, 3559, 3632, 3664, 3673, 3674, 3745, 3747, 3818, 3840, 3842,
783 3851, 3855, 3884, 3885, 3902, 3905, 3919, 3944, 3954, 3955, 3957, 3991,
784 3995, 3996, 4024, 4040, 4069, 4070, 4074, 4076, 4096, 4101, 4102, 4114,
785 4130, 4131, 4181, 4276, 4306, 4342, 4344, 4349, 4364, 4368, 4381, 4392,
786 4403, 4405, 4406, 4411, 4438, 4439, 4455, 4456, 4465, 4512, 4514, 4586,
787 4702, 4858
789 * New Linux interfaces: epoll_pwait, sched_getcpu.
791 * New generic interfaces: strerror_l.
793 * nscd can now cache the services database. Implemented by Ulrich Drepper.
794 \f
795 Version 2.5
797 * The following bugs are resolved with this release:
799 39, 68, 192, 352, 388, 531, 935, 1006, 1201, 1203, 1386, 1782, 1783, 1784,
800 1785, 1786, 1787, 1951, 1974, 1996, 2072, 2098, 2125, 2134, 2158, 2182,
801 2349, 2376, 2386, 2389, 2415, 2418, 2420, 2423, 2450, 2451, 2466, 2472,
802 2473, 2477, 2498, 2499, 2501, 2502, 2505, 2507, 2508, 2509, 2517, 2526,
803 2569, 2571, 2592, 2611, 2625, 2632, 2644, 2662, 2680, 2683, 2684, 2693,
804 2695, 2703, 2734, 2751, 2764, 2766, 2775, 2792, 2821, 2823, 2832, 2841,
805 2843, 2883, 2892, 2908, 2914, 2926, 2961, 2978, 2980, 2987, 2997, 2998,
806 3013, 3018, 3034, 3040, 3044, 3123, 3124, 3137, 3138, 3143, 3155, 3189,
807 3225, 3251, 3252, 3253, 3273
809 * For Linux, the sorting of addresses returned by getaddrinfo now also
810 handles rules 3, 4, and 7 from RFC 3484. I.e., all rules are handled.
811 Implemented by Ulrich Drepper.
813 * Allow system admin to configure getaddrinfo with the /etc/gai.conf file.
814 Implemented by Ulrich Drepper.
816 * New Linux interfaces: splice, tee, sync_file_range, vmsplice.
818 * New iconv module for MIK. Contributed by Alexander Shopov.
820 * For sites with broken group and/or passwd database, the auto-propagate
821 option of nscd can prevent creating ID lookup entries from the results
822 of a name lookup and vice versa. This usually is no problem but some
823 site might have problems with the default behavior.
824 Implemented by Ulrich Drepper.
826 * Iterating over entire database in NIS can be slow. With the
827 SETENT_BATCH_READ option in /etc/default/nss a system admin can decide
828 to trade time for memory. The entire database will be read at once.
829 Implemented by Ulrich Drepper.
831 * The interfaces introduced in RFC 3542 have been implemented by
832 Ulrich Drepper.
834 * Support for the new ELF hash table format was added by Ulrich Drepper.
836 * Support for priority inheritance mutexes added by Jakub Jelinek and
837 Ulrich Drepper.
839 * Support for priority protected mutexes added by Jakub Jelinek.
841 * New locales: nr_ZA, pa_PK, ca_AD, ca_FR, ca_IT, el_CY, tr_CY, as_IN,
842 or_IN, csb_PL, fy_NL, sr_ME.
843 \f
844 Version 2.4
846 * More overflow detection functions.
848 * New iconv converters for IBM1025, IBM1122, IBM1137, IBM1153,
849 IBM1154, IBM1155, IBM1156, IBM1157, and IBM1158 contributed by Jiro Sekiba.
851 More converters for IBM803, IBM901, IBM902, IBM921, IBM1008, IBM1097,
852 IBM1112, IBM1123, IBM1130, IBM1140, IBM1141, IBM1142, IBM1143, IBM1144,
853 IBM1145, IBM1146, IBM1147, IBM1148, IBM1149, IBM1166, IBM1167, IBM4517,
854 IBM4899, IBM4909, IBM4971, IBM5347, IBM9030, IBM9066, IBM9448, IBM12712,
855 IBM16804, IBM1364, IBM1371, IBM1388, IBM1390, and IBM1399 contributed
856 by Masahide Washizawa.
858 * It is now possible to install audit libraries for the dynamic linker using
859 LD_AUDIT. Implemented by Ulrich Drepper.
861 * The LinuxThreads add-on, providing pthreads on Linux 2.4 kernels, is no
862 longer supported. The new NPTL implementation requires Linux 2.6 kernels.
863 For a libc and libpthread that works well on Linux 2.4 kernels, we
864 recommend using the stable 2.3 branch.
866 * The new function open_wmemstream acts like open_memstream,
867 but uses a wchar_t wide character buffer.
869 * The new function ppoll is an improved version of poll, similar to pselect.
871 * New interfaces: fdopendir, openat, fstatat, fchmodat, fchownat,
872 futimesat, faccessat, mkdirat, mkfifoat, mknodat,
873 renameat, unlinkat, linkat, symlinkat, readlinkat.
875 * New Linux kernel system calls: unshare,
876 inotify_init, inotify_add_watch, inotify_rm_watch.
878 * The euidaccess function is now also known by the alias eaccess,
879 for compatibility with some other systems.
881 * Timezone data updated to 2006b version.
882 \f
883 Version 2.3.6
885 * The following bugs are resolved with this release:
887 38, 253, 549, 622, 653, 721, 758, 851, 877, 915, 934, 955, 961,
888 1016, 1037, 1076, 1079, 1080, 1081, 1082, 1083, 1084, 1085, 1086,
889 1087, 1088, 1090, 1091, 1092, 1093, 1094, 1095, 1096, 1097, 1098,
890 1099, 1100, 1101, 1102, 1103, 1104, 1105, 1106, 1107, 1108, 1109,
891 1110, 1111, 1112, 1113, 1125, 1137, 1138, 1249, 1250, 1251, 1252,
892 1253, 1254, 1350, 1358, 1394, 1438, 1498, 1534
894 Visit <http://sources.redhat.com/bugzilla/> for the details of each bug.
896 * As of this release, GCC 4 can be used to compile the C Library.
898 * Timezone data updated to 2005m version.
899 \f
900 Version 2.3.5
902 * The following bugs are resolved with this release:
904 284, 592, 602, 626, 633, 640, 650, 661, 671, 681, 693, 700, 710, 719,
905 722, 723, 725, 726, 727, 728, 729, 730, 731, 732, 733, 734, 735, 736,
906 737, 738, 739, 740, 741, 742, 743, 744, 745, 765, 767, 768, 769, 776,
907 777, 787, 821, 822, 823, 825
909 Visit <http://sources.redhat.com/bugzilla/> for the details of each bug.
910 \f
911 Version 2.3.4
913 * Support for RFC 3678. Real implementations exist only for Linux so far.
914 Implemented by Ulrich Drepper.
916 * nscd can now cache entries persistently. Expiring entries are reloaded.
917 For speedups the cache can be shared in memory with client processes.
918 Implemented by Ulrich Drepper.
920 * nscd can now perform SELinux checks.
921 Implemented by Matthew Rickard <mjricka@epoch.ncsc.mil>.
923 * getaddrinfo queries are now cached. Canonical name lookup is performed
924 efficiently.
925 Implemented by Ulrich Drepper.
927 * The nothrow function attribute is used when headers are used by gcc when
928 compiling C code. This can avoid significant amounts of exception
929 handling data.
931 * The malloc functions perform more error checking and are stricter when
932 it comes to reacting on errors. The default action is to terminate
933 the process after showing an error message. Implemented by Ulrich Drepper.
935 * Reverse lookups of IPv6 addresses does not use bit string or .ip6.int
936 lookups anymore unless explicitly requested. Implemented by Ulrich Drepper.
938 * Namespaces in ld.so are implemented. DSOs can be loaded in separate
939 namespaces using the new function dlmopen(). This feature is of course,
940 like most other dynamic loading functionality, not available in statically
941 linked applications. Implemented by Ulrich Drepper.
943 * Low-overhead boundary checking variants of string and some stdio functions
944 were added. These are to be used in conjunction with a gcc patch by
945 Jakub Jelinek which adds calls to these functions if possible.
946 Implemented by Jakub Jelinek and Ulrich Drepper.
948 * Old code for several operating systems and machine architectures that
949 have not been in working condition in a long time have been removed from
950 the main source tree maintained by the GNU C Library's maintainers.
951 These files are now reside in the separate `ports' source module
952 that is usable as an add-on when building the library.
953 \f
954 Version 2.3.3
956 * New functions `dladdr1' and `dlinfo' in <dlfcn.h> provide more ways to
957 interrogate the dynamic linker, compatible with the Solaris interface.
959 * ELF thread-local storage support (TLS) now works on PowerPC and PowerPC64;
960 implemented by Paul Mackerras, Steven Munroe, and Roland McGrath.
962 * getifaddrs now uses the netlink interface on Linux to get its information.
963 Implemented by Thorsten Kukuk.
965 * getaddrinfo now implements AI_V4MAPPED, AI_ALL, and AI_ADDRCONF.
966 Implemented by Ulrich Drepper.
968 * support for non-executable stacks on x86 has been added. Changes mostly
969 by Roland McGrath.
971 * regex is now much faster for multibyte locales. Changes by Jakub Jelinek
972 and Ulrich Drepper.
974 * getaddrinfo now performs destination address selection according to
975 RFC 3484.
976 \f
977 Version 2.3.2
979 * Thread-safe interfaces for many functions that access locale data
980 were added in version 2.3, but these features were omitted from NEWS.
981 Many functions have variants with an `_l' suffix that take a `locale_t'
982 object as a parameter rather than consulting the current locale.
983 The new functions `newlocale', `duplocale', and `freelocale' in <locale.h>
984 create and maintain `locale_t' objects. Additionally, the new function
985 `uselocale' sets "the current locale" (as used by functions not so
986 parameterized) set for an individual thread. These features were added
987 in version 2.3, implemented by Ulrich Drepper and Roland McGrath.
989 * The functions getresuid, getresgid, setresuid, and setresgid, which
990 have long been available on Linux, are now declared in <unistd.h>
991 and are now also available on the Hurd.
993 * ELF thread-local storage support (TLS) now works on x86-64.
995 * The new dynamic string token $LIB is expanded in shared library names.
996 This normally expands to lib, but on some 64-bit platforms to lib64 instead.
998 * Aldy Hernandez contributed complete software floating point support for
999 PowerPC machines with no FPU.
1001 * fexecve is implemented on Linux.
1003 * The `btowc' function should work at least twice as fast due to
1004 specialized callbacks in the iconv modules. Implemented by Bruno Haible.
1006 * With approriate thread add-ons cancelable functions are now implemented
1007 in libc.so as well. No need to call the function in libpthread. This
1008 change allowed to finally disable the incorrect and expensive handling
1009 of weak definition in ld.so.
1011 * Yet more PLT entries in libc.so have been removed. We finally arrived
1012 at the bare minimum. Startup times improved appropriately.
1014 * Support for the new Linux/x86 system call interface was added. The
1015 AT_SYSINFO auxiliary vector entry is recognized and handled.
1016 \f
1017 Version 2.3
1019 * Masahide Washizawa contributed iconv modules for IBM1163 and IBM1164
1020 charsets.
1022 * iconv (the program and the interface) now accepts empty names (excluding
1023 options like //TRANSLIT) to mean "use charset of current locale".
1025 * localedef can now transliterate characters in strings which are not in
1026 the provided charmap. The information from the input locale is used.
1028 * Prelinking support was added for ELF targets. This requires additional
1029 tools and recent versions of the GNU binutils. Contributed by Jakub Jelinek.
1031 * Read-only stdio streams now use mmap to speed up operation by eliminating
1032 copying and buffer underflows. To use add 'm' to the mode string of
1033 the fopen/fdopen/freopen call. Implemented by Ulrich Drepper.
1035 * The malloc functions were completely rewritten by Wolfram Gloger based
1036 on Doug Lea's malloc-2.7.0.c.
1038 * Isamu Hasegawa contributed a completely new and POSIX-conformant
1039 implementation of regex.
1041 * Bruno Haible upgraded the iconv and locale implementation to support
1042 Unicode 3.2.
1044 * Contents of the LC_* and LANG environment variables in the CEN style are
1045 not recognized anymore. It never was used. Change by Ulrich Drepper.
1047 * The runtime (ld.so, libc, libpthread for Linux) now can handle the ELF
1048 thread-local storage (TLS) ABI on some platforms.
1049 Changes by Ulrich Drepper. SH support by Kaz Kojima.
1051 * Bruno Haible contributed iconv converters for ISO-2022-JP-3, SHIFT JIS-X0213,
1052 EUC-JISX0213, and TSCII.
1054 * New header <ifaddrs.h> with functions `getifaddrs' and `freeifaddrs':
1055 BSD-compatible interface for getting all network interface addresses.
1056 Implementation for IPv4 by Roland McGrath.
1058 * Loading of locale data is faster due to the introduction of a locale
1059 archive. Implemented by Roland McGrath and Ulrich Drepper.
1061 * Startup times are significantly reduced by not using exported functions
1062 inside the library itself. Changes by Jakub Jelinek, Roland McGrath,
1063 and Ulrich Drepper.
1065 * Steven Munroe contributed a port to PowerPC64/Linux.
1066 \f
1067 Version 2.2.6
1069 * The Hurd now uses the GNU libio implementation of stdio rather than the
1070 old GNU stdio implementation, and uses a new ABI (libc.so.0.3).
1072 * The Hurd on x86 now has the `ioperm' function and <sys/io.h> header file
1073 with the same behavior as the Linux system call of the same name.
1074 \f
1075 Version 2.2.5
1077 * Stephen Moshier implemented log2, log10, powl and cbrtl for the
1078 128-bit long double format.
1080 * Masahide Washizawa contributed iconv modules for IBM1132, IBM1133, IBM1160,
1081 IBM1161, and IBM1162 charsets.
1083 * Andreas Jaeger contributed a port to x86-64/Linux.
1085 * Peter Bruin contributed a port to PowerPC/Hurd.
1087 * libc functions using I/O streams now can handle wide-oriented streams
1088 as well.
1090 * optimizations in the dynamic linker. Binaries created by recent binutils
1091 versions start up quicker due to reduced time spent on relocations.
1093 * Support for use of gcc3 added by Jakub Jelinek and HJ Lu.
1094 \f
1095 Version 2.2.4
1097 * Stephen Moshier implemented cosh, expm1, log1p, acos, sinh, tanh,
1098 asinh, atanh, j0 for the 128-bit long double format.
1100 * Bruno Haible updated all the code handling Unicode in some form to
1101 support Unicode 3.1.
1103 * Speed of regex for single-byte locales is back to previous levels.
1104 Patch by Isamu Hasegawa.
1106 * Alpha, SPARC, and IA-64 now also using floating stacks.
1108 * Startup time of internationalized applications greatly improved through
1109 iconv cache. Use iconvconfig to generate the cache file.
1110 Contributed by Ulrich Drepper.
1112 * The IA-64 specific part of ld.so was rewritten to eliminate some pretty
1113 severe performance problems. Patch by David Mosberger.
1115 * The Hurd port got a lot more functionality like AIO, various stdio
1116 extensions, etc. Mainly done by Roland McGrath.
1118 * mtrace can now lookup symbols in shared libraries.
1119 \f
1120 Version 2.2.3
1122 * Intel's IA-64 math library is largely integrated. It provides fast and
1123 accurate implementatations for most basic and standard math functions
1124 in float, double, and long double format.
1126 * Stephen Moshier implemented j0, j1, jn, y0, y1, yn, lgamma, erf, erfc,
1127 and asin for the 96-bit long double format and asin, log, tan for the
1128 128-bit long double format.
1130 * The beginning of a last-bit accurate math library by IBM Haifa were added.
1131 The basic double functions exist today. Contributed by Abraham Ziv
1132 <ziv@il.ibm.com>, Moshe Olshansky <olshansk@il.ibm.com>, Ealan Henis
1133 <ealan@il.ibm.com>, and Anna Reitman <reitman@il.ibm.com>.
1135 * An asynchronous name lookup library was added. The interface is designed
1136 after POSIX AIO. The proposal was circulated beforehand to get comments.
1137 No negative ones came in. Implemented by Ulrich Drepper.
1139 * Port to S390/64bit contributed by Martin Schwidefsky
1140 <schwidefsky@de.ibm.com>.
1142 * David Mosberger <davidm@hpl.hp.com> implemented the setcontext family
1143 of functions for Linux/IA-64.
1145 * The RPC code is now thread safe. Threads can now use the same service
1146 of different services at the same time. Patch by Eric Norum
1147 <eric.norum@usask.ca> with some help by Ulrich Drepper.
1149 * Martin Schwidefsky <schwidefsky@de.ibm.com> implemented the setcontext
1150 family of functions for Linux/S390.
1152 * Ulrich Drepper <drepper@redhat.com> implemented the setcontext family
1153 of functions for Linux/x86.
1155 * Port to Linux/CRIS contributed by Axis Communications.
1156 \f
1157 Version 2.2.2
1159 * Lots of headers were cleaned up. Using the tool in the conform/ subdir
1160 we can now check for namespace violations and missing declarations. The
1161 result is that almost all headers are now Unix-compliant (as defined in
1162 the upcoming XPG6). The negative side is that some programs might need
1163 corrections, too, if they depend on the incorrect form of the headers in
1164 previous versions which defined too many symbols and included too many
1165 other headers.
1167 * regex now handles multibyte character sets correctly.
1168 Contributed by Isamu Hasegawa <isamu@yamato.ibm.com>.
1170 * iconv (the program) does now conform to the upcoming XPG6 and handles
1171 charmaps. Instead of the charset names the path of charmaps can be
1172 provided and the conversion happens based on this data.
1173 Contributed by Ulrich Drepper.
1175 * The locale program now provides detailed information about the installed
1176 locales. While
1178 locale -a
1180 only lists the names of the supported locales
1182 locale -a --verbose
1184 provides details such as country, language, and codeset name.
1185 Contributed by Ulrich Drepper.
1186 \f
1187 Version 2.2.1
1189 * The gencat program now parses the input file according to the charset
1190 selected by the LC_CTYPE category. This is important for stateful
1191 character sets. To make generating catalogs easier there is a way
1192 to overwrite the charset selected by the locale: before the first
1193 message or $ quote line the catalog can contain a line like
1195 $ codeset=ISO-8859-2
1197 to select the charset (ISO-8859-2 in this case).
1199 Implemented by Shinya Hanataka and Ulrich Drepper.
1201 * New codeset conversion modules: IBM-922 (Estonia PC codeset),
1202 IBM-1124 (Ukraine PC codeset), IBM-1129 (Vietnamese PC codeset).
1203 Contributed by Masahide Washizawa <washi@jp.ibm.com>.
1205 * Optimized string functions for Alpha ev6 and ev67 by Richard Henderson
1206 <rth@redhat.com> and Rick Gorton <rick.gorton@alpha-processor.com>.
1208 * The LANGUAGE environment variable is now ignored unless the locale is
1209 changed from the default "C" locale.
1211 * The usual bug fixes.
1212 \f
1213 Version 2.2
1215 * Greg McGary added runtime support for bounds checking using gcc's
1216 new -fbounded-pointers option. ix86 target is complete. PowerPC
1217 is in progress.
1219 * Thorsten Kukuk added secure mode support to nscd.
1221 * The Berkeley db libraries have been removed.
1223 Related, the nss_db module is now in a separate package since it
1224 obviously requires a database library being available.
1226 * Wide character I/O streams implemented by Ulrich Drepper.
1228 * Functions from the extended socket API added by Ulrich Drepper.
1230 * Functions feenableexcept and fedisableexcept to control the
1231 behaviour of individual exceptions have been added by Andreas Jaeger.
1233 * ldconfig program added by Andreas Jaeger and Jakub Jelinek.
1235 * The resolver code has been updated from bind 8.2.3-T5B which supports
1236 threads. The integration was done by Andreas Jaeger, Adam D. Bradley,
1237 and Mark Kettenis.
1239 This change could in some situations effect backward compatibility. Since
1240 now `_res' is a thread-local instead of a global variable, modifying it
1241 in one thread does not have any effect in other threads.
1243 The resolver library was also extended to allow IPv6 as the transport
1244 protocol for the requests. This work was done by Stig Venaas.
1246 * Compatibility code for K&R C compilers has been removed from the
1247 header files. A ISO C compiler is needed to use the library
1248 (conforming to either C89 or C99 standard).
1250 * Complete rewrite of the localedef program to support multibyte character
1251 sets. Implement handling of ISO 14651 and ISO 14652. Rewrite strcoll,
1252 strxfrm, wcscoll, and wcsxfrm functions. Make isw*() functions work.
1253 Implemented by Ulrich Drepper.
1255 Bruno Haible significantly improved the generation and use of the data
1256 structures for the wide character tables.
1258 * Plural handling in gettext implemented by Ulrich Drepper.
1260 * The utmp daemon has been removed.
1262 * The port to MIPS-Linux has been finished by Andreas Jaeger.
1264 * A port to Hitachi SH3 and SH4 has been contributed by Kazumoto Kojima
1265 and Yutaka Niibe.
1267 * POSIX clocks and timers implemented by Kaz Kylheku and Ulrich Drepper.
1269 * POSIX barriers implemented by Kaz Kylheku.
1271 * POSIX spawn function family implemented by Ulrich Drepper.
1273 * POSIX spinlocks are now available.
1275 * Timed wait functions for mutex, rwlock, and semaphores are implemented.
1277 * the configure option --enable-kernel=X.Y.Z allows to strip out
1278 compatibility for kernel versions before X.Y.Z. This is currently only
1279 implemented for Linux.
1281 * the sockaddr_in6 structure changed. The IPv6 working group added a new
1282 field sin6_scope_id. This means that all programs using IPv6 should be
1283 recompiled. Don't expect binary compatibility with previous glibc
1284 versions.
1286 * various conversion modules for IBM character sets contributed by
1287 Masahide Washizawa.
1289 * IA-64 port by Jes Sorensen and HJ Lu.
1290 \f
1291 Version 2.1.3
1293 * bug fixes
1295 \f
1296 Version 2.1.2
1298 * bug fixes
1300 \f
1301 Version 2.1.1
1303 * New ISO C 9x function _Exit, imaxabs, and imaxdiv are added.
1305 * New xdr functions are added; some rpc functions are now 64bit clean.
1307 * Fixed a number of bugs and memory leaks (especially in NIS+ code).
1309 * Fixed known incompatibilities with glibc 2.0.
1311 * New functions lock64, strchrnul, rawmemchr, getutmp and getutmpx.
1313 * Optimized a number of functions (especially the ELF dynamic loader).
1315 * Update timezone data files.
1317 * lots of charmaps corrections
1319 * some new locale definitions and charmaps
1321 \f
1322 Version 2.1
1324 * Richard Henderson corrected size of struct timeval on Linux/Alpha to
1325 conform to POSIX member type requirements. Symbol versions have been
1326 adjusted as needed within the library, and for direct use by applications,
1327 but there is potential for problems if third-party libraries use
1328 struct timeval as part of their interface. This does not present
1329 a problem for X and other "essential" system libraries.
1331 * An additional locale model to support C++ Standard Library locale
1332 model and probably more was implemented by Ulrich Drepper.
1334 * Eric Youngdale and Ulrich Drepper implemented versioning of objects on
1335 symbol level.
1337 * Miles Bader provided the `argp' function family to support hierachical
1338 command line argument parsing, layered on top of getopt.
1340 * strtod accepts new hexadecimal floating-point format from ISO C 9X.
1342 * printf has two new specifiers %a and %A to print hexadecimal flaoting-point
1343 numbers.
1345 * scanf recognizes the %a and %A format for scanning floating point numbers.
1347 * the new headers <stdint.h> and <inttypes.h> from ISO C 9X provides
1348 information and interfaces for the available integer types.
1350 * about 130 new math functions were added to implement the ISO C9x math
1351 library.
1353 * the new header <complex.h> contains definitions of the complex math
1354 functions from ISO C 9X.
1356 * the new header <tgmath.h> defines generic macros to use complex or
1357 real valued functions.
1359 * Thorsten Kukuk provided an implementation for NIS+, securelevel 0, 1 and 2.
1361 * Andreas Jaeger provided a test suite for the math library.
1363 * Mark Kettenis implemented the utmpx interface and an utmp daemon.
1365 * Ulrich Drepper added character set conversion functions (iconv).
1367 * Optimized string functions have been added.
1369 * The localedata addon is now part of glibc.
1371 * An implementation of profiling shared libraries was added by Ulrich Drepper.
1373 * Thorsten Kukuk and Ulrich Drepper provided an implementation for a caching
1374 daemon for NSS (nscd).
1376 Missing a better place here are some numbers on improvements. Under
1377 Linux 2.1.125 un-tar-ing the kernel sources takes
1379 user system wall
1381 using local files 12.19s 6.88s 22.91s
1383 using NIS 13.92s 8.91s 26.34s
1385 using NIS & nscd 10.37s 7.34s 25.30s
1387 using NIS+ 27.57s 30.37s 640.46s
1389 using NIS+ & nscd 10.25s 7.83s 26.51s
1391 using NIS & old nscd [1] 13.83s 8.32s 29.60s
1393 Keep in mind that non-namelookup related operations dominate above times.
1394 It was just a common complain that using NIS+ unpacking the kernel is
1395 horribly slow.
1397 [1] The old nscd implementation is not available anymore since it was
1398 distributed with glibc up to version 2.0.98 and thus is now replaced.
1400 * Tim Waugh provided an implementation of the POSIX.2 wordexp function family.
1402 * Mark Kettenis provided a Hesiod NSS module.
1404 * The ELF dynamic loader knows how to process dynamic string tokens ($ORIGIN
1405 and $PLATFORM) in RPATHs and similar strings (Ulrich Drepper).
1407 * rcmd can now handle netgroups (Dick Streefland).
1409 * A port to the ARM was contributed by Phil Blundell, Pat Beirne and Scott
1410 Bambrough.
1412 * Support for the IPv6 protocol has been added to the socket API, as per the
1413 latest draft standards.
1415 * Support for Linux 2.2 has been added.
1417 * Interface changes relative to the latest 2.0.x release:
1418 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1419 addseverity NEW: Unix98
1420 alphasort64 NEW: LFS
1421 argp_err_exit_status NEW: argp, GNU ext
1422 argp_error NEW: argp, GNU ext
1423 argp_failure NEW: argp, GNU ext
1424 argp_help NEW: argp, GNU ext
1425 argp_parse NEW: argp, GNU ext
1426 argp_program_bug_address NEW: argp, GNU ext
1427 argp_program_version NEW: argp, GNU ext
1428 argp_program_version_hook NEW: argp, GNU ext
1429 argp_state_help NEW: argp, GNU ext
1430 argp_usage NEW: argp, GNU ext
1431 authdes_create NEW: Secure RPC
1432 authdes_getucred NEW: Secure RPC
1433 authdes_pk_create NEW: Secure RPC
1434 backtrace NEW: GNU ext.
1435 backtrace_symbols NEW: GNU ext.
1436 backtrace_symbols_fd NEW: GNU ext.
1437 cacos NEW: ISO C 9x
1438 cacosf NEW: ISO C 9x
1439 cacosh NEW: ISO C 9x
1440 cacoshf NEW: ISO C 9x
1441 cacoshl NEW: ISO C 9x
1442 cacosl NEW: ISO C 9x
1443 capget NEW: kernel
1444 capset NEW: kernel
1445 carg NEW: ISO C 9x
1446 cargf NEW: ISO C 9x
1447 cargl NEW: ISO C 9x
1448 casin NEW: ISO C 9x
1449 casinf NEW: ISO C 9x
1450 casinh NEW: ISO C 9x
1451 casinhf NEW: ISO C 9x
1452 casinhl NEW: ISO C 9x
1453 casinl NEW: ISO C 9x
1454 catan NEW: ISO C 9x
1455 catanf NEW: ISO C 9x
1456 catanh NEW: ISO C 9x
1457 catanhf NEW: ISO C 9x
1458 catanhl NEW: ISO C 9x
1459 catanl NEW: ISO C 9x
1460 cbc_crypt NEW: Secure RPC
1461 ccos NEW: ISO C 9x
1462 ccosf NEW: ISO C 9x
1463 ccosh NEW: ISO C 9x
1464 ccoshf NEW: ISO C 9x
1465 ccoshl NEW: ISO C 9x
1466 ccosl NEW: ISO C 9x
1467 cexp NEW: ISO C 9x
1468 cexpf NEW: ISO C 9x
1469 cexpl NEW: ISO C 9x
1470 cimag NEW: ISO C 9x
1471 cimagf NEW: ISO C 9x
1472 cimagl NEW: ISO C 9x
1473 clearerr_locked REMOVED
1474 clntunix_create NEW: sunrpc ext
1475 clog NEW: ISO C 9x
1476 clog10 NEW: ISO C 9x
1477 clog10f NEW: ISO C 9x
1478 clog10l NEW: ISO C 9x
1479 clogf NEW: ISO C 9x
1480 clogl NEW: ISO C 9x
1481 conj NEW: ISO C 9x
1482 conjf NEW: ISO C 9x
1483 conjl NEW: ISO C 9x
1484 cpow NEW: ISO C 9x
1485 cpowf NEW: ISO C 9x
1486 cpowl NEW: ISO C 9x
1487 cproj NEW: ISO C 9x
1488 cprojf NEW: ISO C 9x
1489 cprojl NEW: ISO C 9x
1490 creal NEW: ISO C 9x
1491 crealf NEW: ISO C 9x
1492 creall NEW: ISO C 9x
1493 creat64 NEW: LFS
1494 csin NEW: ISO C 9x
1495 csinf NEW: ISO C 9x
1496 csinh NEW: ISO C 9x
1497 csinhf NEW: ISO C 9x
1498 csinhl NEW: ISO C 9x
1499 csinl NEW: ISO C 9x
1500 csqrt NEW: ISO C 9x
1501 csqrtf NEW: ISO C 9x
1502 csqrtl NEW: ISO C 9x
1503 ctan NEW: ISO C 9x
1504 ctanf NEW: ISO C 9x
1505 ctanh NEW: ISO C 9x
1506 ctanhf NEW: ISO C 9x
1507 ctanhl NEW: ISO C 9x
1508 ctanl NEW: ISO C 9x
1509 des_setparity NEW: Secure RPC
1510 ecb_crypt NEW: Secure RPC
1511 endutxent NEW: Unix98
1512 exp10 NEW: ISO C 9x
1513 exp10f NEW: ISO C 9x
1514 exp10l NEW: ISO C 9x
1515 exp2 NEW: ISO C 9x
1516 exp2f NEW: ISO C 9x
1517 exp2l NEW: ISO C 9x
1518 fattach NEW: STREAMS
1519 fdetach NEW: STREAMS
1520 fdim NEW: ISO C 9x
1521 fdimf NEW: ISO C 9x
1522 fdiml NEW: ISO C 9x
1523 feclearexcept NEW: ISO C 9x
1524 fegetenv NEW: ISO C 9x
1525 fegetexceptflag NEW: ISO C 9x
1526 fegetround NEW: ISO C 9x
1527 feholdexcept NEW: ISO C 9x
1528 feof_locked REMOVED
1529 feraiseexcept NEW: ISO C 9x
1530 ferror_locked REMOVED
1531 fesetenv NEW: ISO C 9x
1532 fesetexceptflag NEW: ISO C 9x
1533 fesetround NEW: ISO C 9x
1534 fetestexcept NEW: ISO C 9x
1535 feupdateenv NEW: ISO C 9x
1536 fflush_locked REMOVED
1537 ffsl NEW: GNU ext.
1538 ffsll NEW: GNU ext.
1539 fgetpos64 NEW: LFS
1540 fgets_unlocked NEW: GNU ext.
1541 fileno_locked REMOVED
1542 fma NEW: ISO C 9x
1543 fmaf NEW: ISO C 9x
1544 fmal NEW: ISO C 9x
1545 fmax NEW: ISO C 9x
1546 fmaxf NEW: ISO C 9x
1547 fmaxl NEW: ISO C 9x
1548 fmin NEW: ISO C 9x
1549 fminf NEW: ISO C 9x
1550 fminl NEW: ISO C 9x
1551 fmtmsg NEW: Unix98
1552 fopen64 NEW: LFS
1553 fputc_locked REMOVED
1554 fputs_unlocked NEW: GNU ext.
1555 fread_unlocked NEW: GNU ext.
1556 freopen64 NEW: LFS
1557 fseeko NEW: Unix98
1558 fsetpos64 NEW: LFS
1559 fstatfs64 NEW: LFS
1560 fstatvfs NEW: Unix98
1561 fstatvfs64 NEW: LFS
1562 ftello NEW: Unix98
1563 ftello64 NEW: LFS
1564 ftruncate64 NEW: LFS
1565 ftw64 NEW: LFS
1566 fwrite_unlocked NEW: GNU ext.
1567 gai_strerror NEW: IPv6
1568 gamma_r REMOVED
1569 gammaf_r REMOVED
1570 gammal_r REMOVED
1571 getchar_locked REMOVED
1572 getdate NEW: Unix98
1573 getdate_err NEW: Unix98
1574 getdate_r NEW: GNU ext.
1575 getmsg NEW: STREAMS
1576 getnameinfo NEW: IPv6
1577 getnetname NEW: Secure RPC
1578 getpmsg NEW: STREAMS
1579 getpt NEW: Unix98 PTY
1580 getrlimit64 NEW: LFS
1581 getutxent NEW: Unix98
1582 getutxid NEW: Unix98
1583 getutxline NEW: Unix98
1584 glob64 NEW: GNU ext.
1585 globfree64 NEW: GNU ext.
1586 gnu_get_libc_release NEW: GNU ext.
1587 gnu_get_libc_version NEW: GNU ext.
1588 grantpt NEW: Unix98 PTY
1589 host2netname NEW: Secure RPC
1590 iconv NEW: iconv
1591 iconv_close NEW: iconv
1592 iconv_open NEW: iconv
1593 if_freenameindex NEW: IPv6
1594 if_indextoname NEW: IPv6
1595 if_nameindex NEW: IPv6
1596 if_nametoindex NEW: IPv6
1597 in6addr_any NEW: IPv6
1598 in6addr_loopback NEW: IPv6
1599 inet6_isipv4mapped NEW: IPv6
1600 isastream NEW: STREAMS
1601 iswblank NEW: GNU ext.
1602 key_decryptsession NEW: Secure RPC
1603 key_decryptsession_pk NEW: Secure RPC
1604 key_encryptsession NEW: Secure RPC
1605 key_encryptsession_pk NEW: Secure RPC
1606 key_gendes NEW: Secure RPC
1607 key_get_conv NEW: Secure RPC
1608 key_secretkey_is_set NEW: Secure RPC
1609 key_setnet NEW: Secure RPC
1610 key_setsecret NEW: Secure RPC
1611 llrint NEW: ISO C 9x
1612 llrintf NEW: ISO C 9x
1613 llrintl NEW: ISO C 9x
1614 llround NEW: ISO C 9x
1615 llroundf NEW: ISO C 9x
1616 llroundl NEW: ISO C 9x
1617 log2 NEW: ISO C 9x
1618 log2f NEW: ISO C 9x
1619 log2l NEW: ISO C 9x
1620 lrint NEW: ISO C 9x
1621 lrintf NEW: ISO C 9x
1622 lrintl NEW: ISO C 9x
1623 lround NEW: ISO C 9x
1624 lroundf NEW: ISO C 9x
1625 lroundl NEW: ISO C 9x
1626 lseek64 NEW: LFS
1627 makecontext NEW: Unix98
1628 mempcpy NEW: GNU ext.
1629 mmap64 NEW: LFS
1630 moncontrol REMOVED
1631 modify_ldt NEW: kernel
1632 nan NEW: ISO C 9x
1633 nanf NEW: ISO C 9x
1634 nanl NEW: ISO C 9x
1635 nearbyint NEW: ISO C 9x
1636 nearbyintf NEW: ISO C 9x
1637 nearbyintl NEW: ISO C 9x
1638 netname2host NEW: Secure RPC
1639 netname2user NEW: Secure RPC
1640 nexttoward NEW: ISO C 9x
1641 nexttowardf NEW: ISO C 9x
1642 nexttowardl NEW: ISO C 9x
1643 nftw NEW: Unix98
1644 nftw64 NEW: LFS
1645 open64 NEW: LFS
1646 passwd2des NEW: Secure RPC
1647 pow10 NEW: GNU ext.
1648 pow10f NEW: GNU ext.
1649 pow10l NEW: GNU ext.
1650 pread NEW: Unix98
1651 pread64 NEW: LFS
1652 printf_size NEW: GNU ext.
1653 printf_size_info NEW: GNU ext.
1654 profil_counter REMOVED
1655 pthread_mutexattr_getkind_np REPLACED
1656 pthread_mutexattr_setkind_np REPLACED
1657 ptsname NEW: Unix98 PTY
1658 ptsname_r NEW: Unix98 PTY
1659 putc_locked REMOVED
1660 putchar_locked REMOVED
1661 putgrent NEW: GNU ext.
1662 putmsg NEW: STREAMS
1663 putpmsg NEW: STREAMS
1664 pututxline NEW: Unix98
1665 pwrite NEW: Unix98
1666 pwrite64 NEW: LFS
1667 readdir64 NEW: LFS
1668 readdir64_r NEW: LFS
1669 remquo NEW: ISO C 9x
1670 remquof NEW: ISO C 9x
1671 remquol NEW: ISO C 9x
1672 round NEW: ISO C 9x
1673 roundf NEW: ISO C 9x
1674 roundl NEW: ISO C 9x
1675 rtime NEW: GNU ext.
1676 scalbln NEW: ISO C 9x
1677 scalblnf NEW: ISO C 9x
1678 scalblnl NEW: ISO C 9x
1679 scandir64 NEW: LFS
1680 sendfile NEW: kernel
1681 setcontext NEW: Unix98
1682 setrlimit64 NEW: LFS
1683 setutxent NEW: Unix98
1684 sighold NEW: Unix98
1685 sigignore NEW: Unix98
1686 sigqueue NEW: POSIX.1b
1687 sigrelse NEW: Unix98
1688 sigset NEW: POSIX.1b
1689 sigtimedwait NEW: POSIX.1b
1690 sigwaitinfo NEW: POSIX.1b
1691 sincos NEW: GNU ext.
1692 sincosf NEW: GNU ext.
1693 sincosl NEW: GNU ext.
1694 statfs64 NEW: LFS
1695 statvfs NEW: Unix98
1696 statvfs64 NEW: LFS
1697 strcasestr NEW: GNU ext.
1698 strtoimax NEW: ISO C 9x
1699 strtoumax NEW: ISO C 9x
1700 strverscmp NEW: GNU ext.
1701 svcauthdes_stats NEW: Secure RPC
1702 svcunix_create NEW: sunrpc etx
1703 svcunixfd_create NEW: sunrpc ext
1704 swapcontext NEW: Unix98
1705 tcgetsid NEW: Unix98 PTY
1706 tdestroy NEW: GNU ext.
1707 tgamma NEW: ISO C 9x
1708 tgammaf NEW: ISO C 9x
1709 tgammal NEW: ISO C 9x
1710 tmpfile64 NEW: LFS
1711 trunc NEW: ISO C 9x
1712 truncate64 NEW: LFS
1713 truncf NEW: ISO C 9x
1714 truncl NEW: ISO C 9x
1715 umount2 NEW: kernel
1716 unlockpt NEW: Unix98 PTY
1717 updwtmpx NEW: Unix98
1718 user2netname NEW: Secure RPC
1719 utmpxname NEW: Unix98
1720 versionsort NEW: GNU ext.
1721 versionsort64 NEW: GNU ext.
1722 waitid NEW: Unix98
1723 wcscasecmp NEW: GNU ext.
1724 wcsncasecmp NEW: GNU ext.
1725 wcsnlen NEW: GNU ext.
1726 wcstoimax NEW: ISO C 9x
1727 wcstoll NEW: ISO C 9x
1728 wcstoull NEW: ISO C 9x
1729 wcstoumax NEW: ISO C 9x
1730 wcswcs NEW: Unix98
1731 wordexp NEW: POSIX.2
1732 wordfree NEW: POSIX.2
1733 write_profiling REMOVED
1734 xdecrypt NEW: Secure RPC
1735 xdr_authdes_cred NEW: Secure RPC
1736 xdr_authdes_verf NEW: Secure RPC
1737 xdr_cryptkeyarg NEW: Secure RPC
1738 xdr_cryptkeyarg2 NEW: Secure RPC
1739 xdr_cryptkeyres NEW: Secure RPC
1740 xdr_getcredres NEW: Secure RPC
1741 xdr_key_netstarg NEW: Secure RPC
1742 xdr_key_netstres NEW: Secure RPC
1743 xdr_keybuf NEW: Secure RPC
1744 xdr_keystatus NEW: Secure RPC
1745 xdr_netnamestr NEW: Secure RPC
1746 xdr_sizeof NEW: Secure RPC
1747 xdr_unixcred NEW: sunrpc ext
1748 xencrypt NEW: Secure RPC
1749 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1750 \f
1751 Version 2.0.6
1753 * more bug fixes
1755 \f
1756 Version 2.0.5
1758 * more bug fixes
1760 * inet_ntoa is thread-safe
1762 * updwtmp is moved from libutil to libc
1764 * rewrite of cbrt function
1766 * update of timezone data
1767 \f
1768 Version 2.0.4
1770 * more bug fixes
1771 \f
1772 Version 2.0.3
1774 * more bug fixes
1775 \f
1776 Version 2.0.2
1778 * more bug fixes
1780 * add atoll function
1782 * fix complex problems in Berkeley DB code
1784 * fix math functions
1785 \f
1786 Version 2.0.1
1788 * fixed lots of header problems (especially Linux/GNU specific)
1790 * dynamic loader preserves all registers
1792 * Roland McGrath provided support for handling of auxiliary objects in
1793 the ELF dynamic loader.
1795 * support for parallel builds is improved
1796 \f
1797 Version 2.0
1799 * GNU extensions are no longer declared by default. To enable them you
1800 must define the macro `_GNU_SOURCE' in your program or compile with
1801 `-D_GNU_SOURCE'.
1803 * The library has changed from using GNU ld symbol aliases to using weak
1804 symbols where available. The ELF object file format supports weak
1805 symbols; GNU ld also supports weak symbols in the a.out format. (There
1806 is also now support for other GNU ld extensions in ELF. Use the
1807 `--with-elf' option to configure to indicate you have ELF, and
1808 `--with-gnu-ld' if using GNU ld.) This change resulted in the deletion
1809 of many files which contained only symbol aliases, reducing the size of
1810 the source and the compiled library; many other files were renamed to
1811 less cryptic names previously occupied by the symbol alias files.
1812 There is a new header file <elf.h> for programs which operate on
1813 files in the ELF format.
1815 * Converted to Autoconf version 2, so `configure' has more options.
1816 Run `configure --help' to see the details.
1818 * The library can now be configured to build profiling, highly-optimized
1819 (but undebuggable), and/or shared libraries (ELF with GNU ld only). The
1820 `--enable-profile', `--enable-omitfp', and `--enable-shared' options to
1821 `configure' enable building these extra libraries. The shared library is
1822 built by default when using both ELF and GNU ld. When shared libraries
1823 are enabled, the new library `-ldl' is available for arbitrary run-time
1824 loading of shared objects; its interface is defined in <dlfcn.h>. The
1825 new header file <link.h> gives access to the internals of the run-time
1826 dynamic linker, `ld.so'. The shell script `ldd' is similar to the
1827 application of same name on other systems and it provides information
1828 about dynamically linked binaries.
1830 * The C library now provides the run-time support code for profiling
1831 executables compiled with `-pg'. Programs can control the profiling code
1832 through the interface in <sys/gmon.h>. The `gmon.out' files written by
1833 the GNU C library can be read only by GNU `gprof' (from GNU binutils);
1834 the support for this file format was contributed by David Mosberger-Tang.
1836 * The math code has been replaced with a math library based on fdlibm from
1837 Sun, and modified by JT Conklin and Ulrich Drepper with i387 support, by
1838 Ian Taylor with `float' functions and by Ulrich Drepper with `long double'
1839 functions. The math functions now reside in a separate library, so
1840 programs using them will need to use `-lm' their linking commands.
1842 * John C. Bowman contributed optimized ix87 assembler inline functions.
1844 * Ulrich Drepper has contributed support for an `/etc/nsswitch.conf'
1845 mechanism similar to that found in Solaris 2. This is now used for the
1846 group, passwd, hosts, networks, services, protocols, rpc, ethers,
1847 shadow, netgroup, publickey, and alias databases. The `nsswitch.conf'
1848 file controls what services are used for each individual database. This
1849 works by loading shared libraries with names specified in `nsswitch.conf',
1850 so service modules can be changed or added at any time without even
1851 relinking any program. Currently there are the file, db, and NIS based
1852 NSS services available.
1854 * The new functions `strtoq' and `strtouq' parse integer values from
1855 strings, like `strtol' and `strtoul', but they return `long long int' and
1856 `unsigned long long int' values, respectively (64-bit quantities).
1858 * The new functions `strtof' and `strtold' parse floating-point values from
1859 strings, like `strtod', but they return `float' and `long double' values,
1860 respectively (on some machines `double' and `long double' are the same).
1862 * Ulrich Drepper has contributed new implementations of the floating-point
1863 printing and reading code used in the `printf' family of functions and
1864 `strtod', `strtof', and `strtold'. These new functions are perfectly
1865 accurate, and much faster than the old ones.
1867 * The implementation of the POSIX locale model was completely rewritten by
1868 Ulrich Drepper. This includes the new programs `localedef' and `locale'
1869 to compile the POSIX locale definition.
1871 * The former dummy implementations of the strcoll and strxfrm function are
1872 now replaced by fully functional code contributed by Ulrich Drepper. The
1873 collation information comes from the POSIX locale definitions.
1875 * The new header <langinfo.h> defines an interface for accessing
1876 various locale-dependent data (using the locale chosen with `setlocale').
1878 * Ulrich Drepper has contributed a new suite of functions for operation on
1879 wide-character and multibyte-character strings, in <wchar.h>;
1880 and classification and case conversion of wide characters, in <wctype.h>.
1881 These new functions are conforming to the ISO C, Amendement 1 specification.
1883 * There is now a second implementation of the standard I/O library available.
1884 It comes from GNU libg++ as was written by Per Bothner, heavily modified
1885 by Hongjiu Lu and made thread safe by Ulrich Drepper.
1887 * You can now use positional parameter specifications in format strings
1888 for the `printf' and `scanf' families of functions. For example,
1889 `printf ("Number %2$d, Mr %1$s\n", "Jones", 6);'' prints
1890 ``Number 6, Mr Jones''. This is mainly useful when providing different
1891 format strings for different languages, whose grammars may dictate
1892 different orderings of the values being printed. To support this
1893 feature, the interface for `register_printf_handler' has changed; see
1894 the header file <printf.h> for details.
1896 * The `printf' and `scanf' families of functions now understand a new
1897 formatting flag for numeric conversions: the ' flag (e.g. %'d or %'f) says
1898 to group numbers as indicated by the locale; for `scanf' and friends, this
1899 says to accept as valid only a number with all the proper grouping
1900 separators in the right places. In the default "C" locale, numbers are
1901 not grouped; but locales for specific countries will define the usual
1902 conventions (i.e. separate thousands with `,' in the US locale).
1904 * The pgrp functions have been regularized, slightly incompatibly but much
1905 less confusingly. The core functions are now `getpgid' and `setpgid',
1906 which take arguments for the PID to operate on; the POSIX.1 `getpgrp' (no
1907 argument) and BSD `setpgrp' (identical to `setpgid') functions are
1908 provided for compatibility. There is no longer an incompatible `getpgrp'
1909 with an argument declared under _BSD_SOURCE; no BSD code uses it.
1911 * The new header file <fts.h> and suite of functions simplify programs that
1912 operate on directory trees. This code comes from 4.4 BSD.
1914 * The resolver code has been updated from the BIND 4.9.5-P1 release.
1915 Parts of the code were heavily modified by Ulrich Drepper to fit in the
1916 NSS scheme used in glibc.
1918 * There is a new malloc debugging hook `__memalign_hook'.
1920 * There are new typedefs `ushort' for `unsigned short int' and `uint' for
1921 `unsigned int' in <sys/types.h>. These are for compatibility only and
1922 their use is discouraged.
1924 * The `-lmcheck' library to enable standard malloc debugging hooks is now
1925 done differently, so that it works even without GNU ld.
1927 * New function `euidaccess' checks allowed access to a file like `access',
1928 but using the effective IDs instead of the real IDs.
1930 * The time zone data files have been updated for the latest and greatest
1931 local time conventions of the countries of the world.
1933 * The new function `dirfd' extracts the file descriptor used by a DIR stream;
1934 see <dirent.h>.
1936 * The new functions `ecvt', `fcvt', and `gcvt' provide an obsolete interface
1937 for formatting floating-point numbers. They are provided only for
1938 compatibility; new programs should use `sprintf' instead. There are
1939 also equivalent function for the `long double' floating-point type and
1940 all functions also exist in a reentrant form.
1942 * The new auxiliary library `-lutil' from 4.4 BSD contains various
1943 functions for maintaining the login-record files (primarily of use to
1944 system programs such as `login'), and convenient functions for
1945 allocating and initializing a pseudo-terminal (pty) device.
1947 * Ulrich Drepper has contributed new support for System V style
1948 shared memory and IPC on systems that support it.
1950 * Ulrich Drepper has contributed several miscellaneous new functions found
1951 in System V: The `hsearch' family of functions provide an effective
1952 implementation of hash tables; `a64l' and `l64a' provide a very simple
1953 binary to ASCII mapping; `drand48' and friends provide a 48-bit random
1954 number generator.
1956 * Ulrich Drepper has contributed new reentrant counterparts for the
1957 `random' and `hsearch' families of functions; `random_r', `hsearch_r', etc.
1959 * Ulrich Drepper has contributed new, highly-optimized versions of several
1960 string functions for the i486/Pentium family of processors.
1962 * Ulrich Drepper has updated the Linux-specific code, based largely
1963 on work done in Hongjiu Lu's version of GNU libc for Linux.
1964 The GNU library now supports Linux versions 2.0.10 and later,
1965 using the ELF object file format (i[3456]86-*-linux).
1967 * Andreas Schwab has ported the C library to Linux/m68k (m68k-*-linux).
1969 * David Mosberger-Tang and Richard Henderson have ported the C library
1970 to Linux/Alpha (alpha-*-linux). Richard Henderson contributed the
1971 dynamic linking support for ELF/Alpha.
1973 * Richard Henderson contributed several Alpha optimized assembler function
1974 for arithmetic and string handling.
1976 * Ulrich Drepper has contributed a new set of message catalog functions to
1977 support multiple languages using the <libintl.h> interface, for use with
1978 his new package GNU gettext. Translation volunteers have contributed
1979 catalogs of the library's messages in Spanish, German, and Korean.
1981 * For compatibility with XPG4, Ulrich Drepper has contributed the `gencat'
1982 program and the `catgets' function for reading the catalog files it
1983 creates. (The <libintl.h> interface is preferred; we include the
1984 <nl_types.h> interface using `catgets' only for source compatibility with
1985 programs already written to use it.)
1987 * New header file <values.h> gives SVID-compatible names for <limits.h>
1988 constants.
1990 * Various new macros, declarations, and small header files for compatibility
1991 with 4.4 BSD.
1993 * New function `group_member' is a convenient way to check if a process has
1994 a given effective group ID.
1996 * When using GCC 2.7 and later, the socket functions are now declared in a
1997 special way so that passing an argument of type `struct sockaddr_in *',
1998 `struct sockaddr_ns *', or `struct sockaddr_un *' instead of the generic
1999 `struct sockaddr *' type, does not generate a type-clash warning.
2001 * New function `error' declared in header file <error.h> is a convenient
2002 function for printing error messages and optionally exiting; this is the
2003 canonical function used in GNU programs. The new functions `err', `warn',
2004 and friends in header file <err.h> are the canonical 4.4 BSD interface for
2005 doing the same thing.
2007 * The <glob.h> interface has several new flags from 4.4 BSD that extend the
2008 POSIX.2 `glob' function to do ~ and {...} expansion.
2010 * New function `unsetenv' complements `setenv' for compatibility with 4.4 BSD.
2011 `clearenv' which is used in POSIX.9 is also available.
2013 * New function `getsid' returns session ID number on systems that support it.
2015 * We have incorporated the 4.4 BSD `db' library (version 1.85). New header
2016 files <db.h> and <mpool.h> provide a rich set of functions for several
2017 types of simple databases stored in memory and in files, and <ndbm.h> is
2018 an old `ndbm'-compatible interface using the `db' functions. Link with
2019 `-ldb' to get these functions.
2021 * New macro `strdupa' copies a string like `strdup', but uses local stack
2022 space from `alloca' instead of dynamic heap space from `malloc'.
2024 * New function `strnlen' is like `strlen' but searches only a given maximum
2025 number of characters for the null terminator. `stpncpy', `strndup' and
2026 `strndupa' are similar variants for the `stpcpy', `strdup' and `strdupa'
2027 function.
2029 * New function `statfs' in header <sys/statfs.h>.
2031 * The new <argz.h> and <envz.h> interfaces contributed by Miles Bader
2032 provide convenient functions for operating on blocks of null-terminated
2033 strings.
2035 * A new suite of functions in <utmp.h> handle all the details of reading
2036 and writing the utmp file.
2038 * An implementation of the NIS/YP(tm) based NSS service was contributed by
2039 Thorsten Kukuk.
2041 * Paul Eggert and Ulrich Drepper modified the `strftime' function to be
2042 completely POSIX compliant and also implemented the extended functionality
2043 to handle alternate digit representation and alternate era date formats.
2045 * Ulrich Drepper provided an implementation of the `strptime' function
2046 defined in XPG4.2 which transforms a string into a `struct tm' value.
2048 * Paul Eggert provided the tzselect shell script as part of the timezone
2049 code. The shell script makes it easy to select the correct timezone
2050 specification.
2052 * The implementation of the malloc family of functions is completely replaced
2053 by a new implementation by Doug Lea with many improvements by Wolfram Gloger.
2054 The implementation uses the mmap function (if available) and it is
2055 optimized for the use in multi threaded programs.
2057 * Ulrich Drepper contributed a MD5 "encryption" for the crypt family of
2058 functions. This new functionality is usable by specifying a special
2059 salt string and it is compatible with implementation on *BSD systems.
2061 * Lots of functions from the XPG4.2 standard were added by Ulrich Drepper:
2062 `getsubopt' to handle second level command line options, `bsd_signal'
2063 to access BSD style `signal' functionality, the obsolete `regexp' style
2064 expression matcher.
2066 * the `lchown' function is available on system which support this
2067 functionality.
2069 * The implementation of the shadow password handling function was contributed
2070 by Ulrich Drepper.
2072 * David Mosberger-Tang changed the SunRPC implementation to be 64bit safe.
2074 * POSIX.1g support was added. The <sys/select.h> header is available,
2075 `isfdtype' and `pselect' are implemented. Craig Metz contributed an
2076 implementation of `getaddrinfo'.
2077 \f
2078 Version 1.09
2080 * For cross-compilation you should now set `BUILD_CC' instead of `HOST_CC'.
2082 * New header file <fstab.h> and new functions `getfsspec', `getfsent' and
2083 friends, for parsing /etc/fstab. This code comes from 4.4 BSD.
2085 * The new function `daemon' from 4.4 BSD is useful for server programs that
2086 want to put themselves in the background.
2088 * Joel Sherrill has contributed support for several standalone boards that
2089 run without an operating system.
2091 * `printf', `scanf' and friends now accept a `q' type modifier for long
2092 long int as well as `ll'. Formats using these might be `%qu' or `%lld'.
2094 * All of the code taken from BSD (notably most of the math and networking
2095 routines) has been updated from the BSD 4.4-Lite release.
2097 * The resolver code has been updated from the BIND-4.9.3-BETA9 release.
2099 * The new functions `getdomainname' and `setdomainname' fetch or change the
2100 YP/NIS domain name. These are system calls which exist on systems which
2101 have YP (aka NIS).
2103 * The time zone data files have been updated for the latest international
2104 conventions.
2106 * The SunRPC programs `portmap' and `rpcinfo' are now installed in
2107 $(sbindir) (usually /usr/local/sbin) instead of $(bindir).
2108 \f
2109 Version 1.08
2111 * The C library now includes support for Sun RPC, from Sun's free
2112 RPCSRC-4.0 distribution. The `portmap', `rpcinfo', and `rpcgen' programs
2113 are included. (There is still no support for YP.)
2115 * Tom Quinn has contributed a port of the C library to SGI machines running
2116 Irix 4 (mips-sgi-irix4).
2118 * The new `lockf' function is a simplified interface to the locking
2119 facilities of `fcntl', included for compatibility.
2121 * New time functions `timegm', `timelocal', and `dysize' for compatibility.
2123 * New header file <sys/timeb.h> and new function `ftime' for compatibility.
2125 * New header files <poll.h> and <sys/poll.h> and new function `poll' for
2126 compatibility.
2128 * The error message printed by `assert' for a failed assertion now includes
2129 the name of the program (if using GNU ld) and the name of the calling
2130 function (with versions of GCC that support this).
2132 * The `psignal' function is now declared in <signal.h>, not <stdio.h>.
2134 * The library now includes the <sys/mman.h> header file and memory
2135 management functions `mmap', `munmap', `mprotect', `msync', and
2136 `madvise', on systems that support those facilities.
2138 * The interface for `mcheck' has changed slightly: the function called to
2139 abort the program when an allocation inconsistency is detected now takes
2140 an argument that indicates the type of failure. The new function
2141 `mprobe' lets you request a consistency check for a particular block at
2142 any time (checks are normally done only when you call `free' or `realloc'
2143 on a block).
2145 * It is now possible to easily cross-compile the C library, building on one
2146 system a library to run on another machine and/or operating system. All
2147 you need to do is set the variable `HOST_CC' in `configparms' to the
2148 native compiler for programs to run on the machine you are building on (a
2149 few generator programs are used on Unix systems); set `CC' to the
2150 cross-compiler.
2152 * The new function `fexecve' (only implemented on the GNU system) executes
2153 a program file given a file descriptor already open on the file.
2154 \f
2155 Version 1.07
2157 * Brendan Kehoe has contributed most of a port to the DEC Alpha
2158 running OSF/1 (alpha-dec-osf1). He says it is 75% complete.
2160 * You can set the variable `libprefix' in `configparms' to specify a prefix
2161 to be prepended to installed library files; this makes it easy to install
2162 the GNU C library to be linked as `-lgnuc' or whatever.
2164 * The new `stpncpy' is a cross between `stpcpy' and `strncpy': It
2165 copies a limited number of characters from a string, and returns the
2166 address of the last character written.
2168 * You no longer need to check for whether the installed `stddef.h' is
2169 compatible with the GNU C library. configure now checks for you.
2171 * You can now define a per-stream `fileno' function to convert the
2172 stream's cookie into an integral file descriptor.
2174 * ``malloc (0)'' no longer returns a null pointer. Instead, it
2175 allocates zero bytes of storage, and returns a unique pointer which
2176 you can pass to `realloc' or `free'. The behavior is undefined if
2177 you dereference this pointer.
2179 * The C library now runs on Sony NEWS m68k machines running either
2180 NewsOS 3 or NewsOS 4.
2182 * The new `syscall' function is a system-dependent primitive function
2183 for invoking system calls. It has the canonical behavior on Unix
2184 systems, including unreliable return values for some calls (such as
2185 `pipe', `fork' and `getppid').
2187 * The error code `EWOULDBLOCK' is now obsolete; it is always defined
2188 to `EAGAIN', which is the preferred name. On systems whose kernels
2189 use two distinct codes, the C library now translates EWOULDBLOCK to
2190 EAGAIN in every system call function.
2191 \f
2192 Version 1.06
2194 * The GNU C Library Reference Manual is now distributed with the library.
2195 `make dvi' will produce a DVI file of the printed manual.
2196 `make info' will produce Info files that you can read on line using C-h i
2197 in Emacs or the `info' program.
2198 Please send comments on the manual to bug-glibc-manual@gnu.org.
2200 * The library now supports SVR4 on i386s (i386-unknown-sysv4).
2202 * Brendan Kehoe has contributed a port to Sun SPARCs running Solaris 2.
2204 * Jason Merrill has contributed a port to the Sequent Symmetry running
2205 Dynix version 3 (i386-sequent-dynix).
2207 * The library has been ported to i386s running SCO 3.2.4 (also known as SCO
2208 ODT 2.0; i386-unknown-sco3.2.4) or SCO 3.2 (i386-unknown-sco3.2).
2210 * New function `memory_warnings' lets you arrange to get warnings when
2211 malloc is running out of memory to allocate, like Emacs gives you.
2213 * The C library now contains the relocating allocator used in Emacs 19 for
2214 its editing buffers. This allocator (ralloc) minimizes allocation
2215 overhead and fragmentation by moving allocated regions around whenever it
2216 needs to. You always refer to a ralloc'd region with a "handle" (a
2217 pointer to a pointer--an object of type `void **').
2219 * There is a new `printf' format: `%m' gives you the string corresponding
2220 to the error code in `errno'.
2222 * In `scanf' formats, you can now use `%as' or `%a[' to do the normal `%s'
2223 or `%[' conversion, but instead of filling in a fixed-sized buffer you
2224 pass, the `a' modifier says to fill in a `char **' you pass with a
2225 malloc'd string.
2227 * The `fnmatch' function supports the new flag bits `FNM_LEADING_DIR' and
2228 `FNM_CASEFOLD'. `FNM_LEADING_DIR' lets a pattern like `foo*' match a
2229 name like `foo/bar'. `FNM_CASEFOLD' says to ignore case in matching.
2231 * `mkstemp' is a traditional Unix function to atomically create and open a
2232 uniquely-named temporary file.
2233 \f
2234 Version 1.05
2236 * The standard location for the file that says what the local timezone is
2237 has changed again. It is now `/usr/local/etc/localtime' (or more
2238 precisely, `${prefix}/etc/localtime') rather than `/etc/localtime'.
2240 * The distribution no longer contains any files with names longer than 14
2241 characters.
2243 * `struct ttyent' has two new flag bits: TTY_TRUSTED and TTY_CONSOLE.
2244 These are set by the new `trusted' and `console' keywords in `/etc/ttys'.
2246 * New functions `ttyslot' and `syslog' from 4.4 BSD.
2247 \f
2248 Version 1.04
2250 * The configuration process has changed quite a bit. The `configure'
2251 script is now used just like the configuration scripts for other GNU
2252 packages. The `sysdeps' directory hierarchy is much rearranged.
2253 The file `INSTALL' explains the new scheme in detail.
2255 * The header files no longer need to be processed into ANSI C and
2256 traditional C versions. There is just one set of files to install, and
2257 it will work with ANSI or old C compilers (including `gcc -traditional').
2259 * Brendan Kehoe and Ian Lance Taylor have ported the library to the
2260 MIPS DECStation running Ultrix 4.
2262 * The Sun 4 startup code (crt0) can now properly load SunOS 4 shared libraries.
2263 Tom Quinn contributed the initial code. The GNU C library can NOT yet be
2264 made itself into a shared library.
2266 * Yet further improved support for the i386, running 4.3 BSD-like systems
2267 (such as Mach 3 with the Unix single-server), or System V.
2269 * New function `strncasecmp' to do case-insensitive string comparison
2270 with limited length.
2272 * New function `strsep' is a reentrant alternative to `strtok'.
2274 * New functions `scandir' and `alphasort' for searching directories.
2276 * New function `setenv' is a better interface to `putenv'.
2278 * Ian Lance Taylor has contributed an implementation of the SVID `ftw'
2279 function for traversing a directory tree.
2281 * The GNU obstack package is now also part of the C library.
2282 The new function `open_obstack_stream' creates a stdio stream that
2283 writes onto an obstack; `obstack_printf' and `obstack_vprintf' do
2284 formatted output directly to an obstack.
2286 * Miscellaneous new functions: reboot, nice, sigaltstack (4.4 BSD only),
2287 cfmakeraw, getusershell, getpass, swab, getttyent, seteuid, setegid.
2289 * `FNM_FILE_NAME' is another name for `FNM_PATHNAME', used with `fnmatch'.
2291 * The new functions `strfry' and `memfrob' do mysterious and wonderful
2292 things to your strings.
2294 * There are some new test programs: test-fseek, testmb, and testrand.
2296 * Some work has been done to begin porting the library to 4.4 BSD and Linux.
2297 These ports are not finished, but are a good starting place for really
2298 supporting those systems.
2300 * `/etc/localtime' is now the standard location for the file that says what
2301 the local timezone is, rather than `/usr/local/lib/zoneinfo/localtime'.
2302 This follows the general principle that `/etc' is the place for all local
2303 configuration files.
2305 * The C library header files now use `extern "C"' when used by the C++
2306 compiler, so the C library should now work with C++ code.
2308 * The header file <bstring.h> is gone. <string.h> now declares bcopy,
2309 bcmp, bzero, and ffs. (Update: nowadays these functions are declared
2310 in <strings.h>.)
2312 * Mike Haertel (of GNU e?grep and malloc fame) has written a new sorting
2313 function which uses the `merge sort' algorithm, and is said to be
2314 significantly faster than the old GNU `qsort' function. Merge sort is
2315 now the standard `qsort' function. The new algorithm can require a lot
2316 of temporary storage; so, the old sorting function is called when the
2317 required storage is not available.
2319 * The C library now includes Michael Glad's Ultra Fast Crypt, which
2320 provides the Unix `crypt' function, plus some other entry points.
2322 * The code and header files taken from 4.4 BSD have been updated with the
2323 latest files released from Berkeley.
2324 \f
2325 ----------------------------------------------------------------------
2326 Copyright information:
2328 Copyright (C) 1992-2013 Free Software Foundation, Inc.
2330 Permission is granted to anyone to make or distribute verbatim copies
2331 of this document as received, in any medium, provided that the
2332 copyright notice and this permission notice are preserved,
2333 thus giving the recipient permission to redistribute in turn.
2335 Permission is granted to distribute modified versions
2336 of this document, or of portions of it,
2337 under the above conditions, provided also that they
2338 carry prominent notices stating who last changed them.
2339 \f
2340 Local variables:
2341 version-control: never
2342 fill-column: 76
2343 End: