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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:
12 156, 431, 832, 13028, 13982, 13985, 14155, 14547, 14699, 14910, 15048,
13 15218, 15308, 15362, 15400, 15427, 15522, 15531, 15532, 15608, 15609,
14 15610, 15632, 15640, 15672, 15680, 15681, 15723, 15734, 15735, 15736,
15 15748, 15749, 15754, 15760, 15764, 15797, 15844, 15847, 15849, 15855,
16 15856, 15857, 15859, 15867, 15886, 15887, 15890, 15892, 15893, 15895,
17 15897, 15905, 15909, 15919, 15921, 15923, 15939, 15963, 15966, 15988,
18 16032, 15905, 15909, 15919, 15921, 15923, 15939, 15963, 15966, 15988,
19 16032, 16034, 16036, 16041.
21 * CVE-2012-4412 The strcoll implementation caches indices and rules for
22 large collation sequences to optimize multiple passes. This cache
23 computation may overflow for large collation sequences and may cause a
24 stack or buffer overflow. This is now fixed to use a slower algorithm
25 which does not use a cache if there is an integer overflow.
27 * CVE-2012-4424 The strcoll implementation uses malloc to cache indices and
28 rules for large collation sequences to optimize multiple passes and falls
29 back to alloca if malloc fails, resulting in a possible stack overflow.
30 The implementation now falls back to an uncached collation sequence lookup
31 if malloc fails.
33 * CVE-2013-4788 The pointer guard used for pointer mangling was not
34 initialized for static applications resulting in the security feature
35 being disabled. The pointer guard is now correctly initialized to a
36 random value for static applications. Existing static applications need
37 to be recompiled to take advantage of the fix (bug 15754).
39 * CVE-2013-4237 The readdir_r function could write more than NAME_MAX bytes
40 to the d_name member of struct dirent, or omit the terminating NUL
41 character. (Bugzilla #14699).
43 * CVE-2013-4332 The pvalloc, valloc, memalign, posix_memalign and
44 aligned_alloc functions could allocate too few bytes or corrupt the
45 heap when passed very large allocation size values (Bugzilla #15855,
46 #15856, #15857).
48 * New locales: ak_GH, cmn_TW, hak_TW, lzh_TW, nan_TW, quz_PE, pap_AW, pap_CW,
49 ar_SS.
51 * Substantially revised locales: gd_GB, ht_HT
53 * The LC_ADDRESS field was updated to support country_car for almost all
54 supported locales.
56 * ISO 1427 definitions were updated.
58 * ISO 3166 definitions were updated.
60 * The localedef utility now supports --big-endian and --little-endian
61 command-line options to generate locales for a different system from that
62 for which the C library was built.
64 * The configure option --disable-versioning has been removed. Builds with
65 --disable-versioning had not worked for several years.
67 * ISO 639 definitions were updated for Chiga (cgg) and Chinese (gan, hak, czh,
68 cjy, lzh, cmn, mnp, cdo, czo, cpx, wuu, hsn, yue).
70 * SystemTap probes for malloc have been introduced.
72 * Support for powerpc64le has been added.
73 \f
74 Version 2.18
76 * The following bugs are resolved with this release:
78 2546, 2560, 5159, 6809, 7006, 10060, 10062, 10283, 10357, 10686, 11120,
79 11561, 12310, 12387, 12492, 12515, 12723, 13550, 13889, 13951, 13988,
80 14142, 14176, 14200, 14256, 14280, 14293, 14317, 14327, 14478, 14496,
81 14582, 14686, 14812, 14888, 14894, 14907, 14908, 14909, 14920, 14952,
82 14964, 14981, 14982, 14985, 14991, 14994, 14996, 15000, 15003, 15006,
83 15007, 15014, 15020, 15022, 15023, 15036, 15054, 15055, 15062, 15078,
84 15084, 15085, 15086, 15100, 15160, 15214, 15221, 15232, 15234, 15283,
85 15285, 15287, 15304, 15305, 15307, 15309, 15327, 15330, 15335, 15336,
86 15337, 15339, 15342, 15346, 15359, 15361, 15366, 15380, 15381, 15394,
87 15395, 15405, 15406, 15409, 15416, 15418, 15419, 15423, 15424, 15426,
88 15429, 15431, 15432, 15441, 15442, 15448, 15465, 15480, 15485, 15488,
89 15490, 15492, 15493, 15497, 15506, 15529, 15536, 15553, 15577, 15583,
90 15618, 15627, 15631, 15654, 15655, 15666, 15667, 15674, 15711, 15755,
91 15759.
93 * CVE-2013-2207 Incorrectly granting access to another user's pseudo-terminal
94 has been fixed by disabling the use of pt_chown (Bugzilla #15755).
95 Distributions can re-enable building and using pt_chown via the new configure
96 option `--enable-pt_chown'. Enabling the use of pt_chown carries with it
97 considerable security risks and should only be used if the distribution
98 understands and accepts the risks.
100 * CVE-2013-0242 Buffer overrun in regexp matcher has been fixed (Bugzilla
101 #15078).
103 * CVE-2013-1914 Stack overflow in getaddrinfo with many results has been
104 fixed (Bugzilla #15330).
106 * Add support for calling C++11 thread_local object destructors on thread
107 and program exit. This needs compiler support for offloading C++11
108 destructor calls to glibc.
110 * Improved worst case performance of libm functions with double inputs and
111 output.
113 * Support for priority inherited mutexes in pthread condition variables on
114 non-x86 architectures.
116 * Port to Xilinx MicroBlaze contributed by David Holsgrove.
118 * Optimized string functions for AArch64. Implemented by Marcus Shawcroft.
120 * Optimized string functions for ARM. Implemented by Will Newton and
121 Richard Henderson.
123 * Optimized libm functions for SPARC. Implemented by David S. Miller.
125 * Support for building more of ARM glibc as Thumb-2 code. Implemented by
126 Richard Henderson.
128 * Support for building most of MIPS glibc as MIPS16 code. Implemented by
129 Chung-Lin Tang, Maciej W. Rozycki and Maxim Kuvyrkov.
131 * Added a benchmark framework to track performance of functions in glibc.
133 * New <math.h> macro named issignaling to check for a signaling NaN (sNaN).
134 It is based on draft TS 18661 and currently enabled as a GNU extension.
136 * On Linux, the clock function now uses the clock_gettime system call
137 for improved precision, rather than old times system call.
139 * Added new API functions pthread_getattr_default_np and
140 pthread_setattr_default_np to get and set the default pthread
141 attributes of a process.
143 * Added support for TSX lock elision for pthread mutexes on i386 and x86-64.
144 This may improve lock scaling of existing programs on TSX capable systems.
145 When the --enable-lock-elision=yes parameter is specified at configure
146 time lock elision will be enabled by default for all PTHREAD_MUTEX_DEFAULT
147 mutexes.
149 * Support added for AT_HWCAP2 (to coincide with Linux kernel 3.10
150 availability). Implemented by Ryan S. Arnold.
152 * Support added for POWER8 platform. Implemented by Ryan S. Arnold.
153 \f
154 Version 2.17
156 * The following bugs are resolved with this release:
158 1349, 3439, 3479, 3665, 5044, 5246, 5298, 5400, 6530, 6677, 6778, 6808,
159 9685, 9914, 10014, 10038, 10114, 10191, 10631, 10873, 11438, 11607, 11638,
160 11741, 12140, 13013, 13412, 13542, 13601, 13603, 13604, 13629, 13679,
161 13696, 13698, 13717, 13741, 13759, 13761, 13763, 13881, 13939, 13950,
162 13952, 13966, 14042, 14047, 14090, 14150, 14151, 14152, 14154, 14157,
163 14166, 14173, 14195, 14197, 14237, 14246, 14251, 14252, 14283, 14298,
164 14303, 14307, 14328, 14331, 14336, 14337, 14347, 14349, 14368, 14376,
165 14417, 14447, 14459, 14476, 14477, 14501, 14505, 14510, 14516, 14518,
166 14519, 14530, 14532, 14538, 14543, 14544, 14545, 14557, 14562, 14568,
167 14576, 14579, 14583, 14587, 14595, 14602, 14610, 14621, 14638, 14645,
168 14648, 14652, 14660, 14661, 14669, 14672, 14683, 14694, 14716, 14719,
169 14743, 14767, 14783, 14784, 14785, 14793, 14796, 14797, 14801, 14803,
170 14805, 14807, 14811, 14815, 14821, 14822, 14824, 14828, 14831, 14833,
171 14835, 14838, 14856, 14863, 14865, 14866, 14868, 14869, 14871, 14872,
172 14879, 14889, 14893, 14898, 14914.
174 * Optimization of memcpy for MIPS.
176 * CVE-2011-4609 svc_run() produces high cpu usage when accept fails with
177 EMFILE has been fixed (Bugzilla #14889).
179 * The add-on ports collection is now distributed in the "ports" subdirectory
180 of the main GNU C Library distribution, rather than separately.
182 * Port to ARM AArch64 contributed by Linaro.
184 * Support for STT_GNU_IFUNC symbols added for s390 and s390x.
185 Optimized versions of memcpy, memset, and memcmp added for System z10 and
186 zEnterprise z196.
187 Implemented by Andreas Krebbel.
189 * The new function secure_getenv allows secure access to the environment,
190 returning NULL if running in a SUID/SGID process. This function replaces
191 the internal function __secure_getenv.
193 * SystemTap static probes have been added into the dynamic linker.
194 Implemented by Gary Benson.
196 * Optimizations of string functions strstr, strcasestr and memmem.
197 Implemented by Maxim Kuvyrkov.
199 * The minimum Linux kernel version that this version of the GNU C Library
200 can be used with is 2.6.16.
202 * Optimizations of string functions memchr, wcschr, wcscpy, and wcsrchr for
203 powerpc POWER7. Implemented by Will Schmidt.
205 * New configure option --disable-nscd builds the C library such that it
206 never attempts to contact the Name Service Caching Daemon (nscd).
207 New configure option --disable-build-nscd avoids building nscd itself;
208 this is the default if --disable-nscd is used.
210 * Improved support for cross-compilation, including cross-testing and
211 bootstrap builds without a previously built glibc.
213 * Several testsuite tests are now able to test multiple IFUNC variants of an
214 interface, rather than just testing the one that would be chooen by
215 default.
217 * New configure options --with-bugurl and --with-pkgversion, for
218 distributors to use to embed their bug-reporting and package version
219 information in --help and --version output.
221 * The ttyname and ttyname_r functions on Linux now fall back to searching for
222 the tty file descriptor in /dev/pts or /dev if /proc is not available. This
223 allows creation of chroots without the procfs mounted on /proc.
225 * The `crypt' function now fails if passed salt bytes that violate the
226 specification for those values. On Linux, the `crypt' function will
227 consult /proc/sys/crypto/fips_enabled to determine if "FIPS mode" is
228 enabled, and fail on encrypted strings using the MD5 or DES algorithm
229 when the mode is enabled.
231 * The `clock_*' suite of functions (declared in <time.h>) is now available
232 directly in the main C library. Previously it was necessary to link with
233 -lrt to use these functions. This change has the effect that a
234 single-threaded program that uses a function such as `clock_gettime' (and
235 is not linked with -lrt) will no longer implicitly load the pthreads
236 library at runtime and so will not suffer the overheads associated with
237 multi-thread support in other code such as the C++ runtime library.
239 * New locales: ayc_PE, doi_IN, ia_FR, mni_IN, nhn_MX, niu_NU, niu_NZ,
240 sat_IN, and szl_PL.
241 \f
242 Version 2.16
244 * The following bugs are resolved with this release:
246 174, 208, 350, 369, 411, 706, 766, 887, 2074, 2541, 2547, 2548, 2550,
247 2551, 2552, 2553, 2554, 2562, 2563, 2565, 2566, 2570, 2576, 2636, 2678,
248 3335, 3440, 3748, 3768, 3866, 3868, 3906, 3976, 3992, 4026, 4108, 4596,
249 4822, 5077, 5461, 5805, 5993, 6471, 6486, 6578, 6649, 6730, 6770, 6794,
250 6884, 6890, 6894, 6895, 6907, 6911, 6959, 7064, 9739, 9902, 10110, 10135,
251 10140, 10153, 10210, 10254, 10346, 10375, 10545, 10716, 10846, 11174,
252 11261, 11322, 11365, 11451, 11494, 11521, 11677, 11837, 11959, 12047,
253 12097, 12193, 12194, 12297, 12298, 12301, 12340, 12354, 12416, 12495,
254 13058, 13223, 13361, 13525, 13526, 13527, 13528, 13529, 13530, 13531,
255 13532, 13533, 13547, 13551, 13552, 13553, 13555, 13556, 13559, 13563,
256 13566, 13576, 13579, 13583, 13592, 13594, 13613, 13618, 13637, 13656,
257 13658, 13673, 13691, 13695, 13704, 13705, 13706, 13718, 13726, 13738,
258 13739, 13743, 13750, 13758, 13760, 13761, 13775, 13786, 13787, 13792,
259 13806, 13824, 13840, 13841, 13844, 13846, 13848, 13851, 13852, 13854,
260 13871, 13872, 13873, 13879, 13882, 13883, 13884, 13885, 13886, 13892,
261 13895, 13908, 13910, 13911, 13912, 13913, 13914, 13915, 13916, 13917,
262 13918, 13919, 13920, 13921, 13922, 13923, 13924, 13926, 13927, 13928,
263 13938, 13941, 13942, 13954, 13955, 13956, 13963, 13967, 13968, 13970,
264 13973, 13979, 13983, 13986, 13996, 14012, 14027, 14033, 14034, 14036,
265 14040, 14043, 14044, 14048, 14049, 14050, 14053, 14055, 14059, 14064,
266 14075, 14080, 14083, 14103, 14104, 14109, 14112, 14117, 14122, 14123,
267 14134, 14153, 14183, 14188, 14199, 14210, 14218, 14229, 14241, 14273,
268 14277, 14278.
270 * Support for the x32 ABI on x86-64 added. The x32 target is selected by
271 configuring glibc with:
272 BUILD_CC='gcc' CC='gcc -mx32' CXX='g++ -mx32'
273 Visit <http://sites.google.com/site/x32abi/> for more x32 ABI info.
274 Implemented by H.J. Lu.
276 * ISO C11 support:
278 + define static_assert
280 + do not declare gets
282 + declare at_quick_exit and quick_exit also for ISO C11
284 + aligned_alloc. NB: The code is deliberately allows the size parameter
285 to not be a multiple of the alignment. This is a moronic requirement
286 in the standard but it is only a requirement on the caller, not the
287 implementation.
289 + timespec_get added
291 + uchar.h support added
293 + CMPLX, CMPLXF, CMPLXL added
295 Implemented by Ulrich Drepper.
297 * Support for the IA-64 has been moved to ports.
299 * Remove support for anything but ELF binary format
301 * Checking versions of poll, ppoll added.
302 Implemented by Ulrich Drepper.
304 * More generic and 64-bit performance optimizations to math functions.
305 Implemented by Ulrich Drepper.
307 * New configure option --enable-obsolete-rpc makes the deprecated RPC
308 headers and functions available at compile time as they were before
309 version 2.14. This option will be removed at some time in the future
310 after the TI-RPC library becomes fully sufficient for the needs of
311 existing applications.
313 * Compatibility code for Linux kernel versions before 2.4 has been removed.
314 Note that glibc is not expected to work with any Linux kernel version
315 before 2.6.
317 * New header <sys/auxv.h> and function getauxval allowing easy access to
318 the AT_* key-value pairs passed from the Linux kernel. The header also
319 defines the HWCAP_* bits associated with the AT_HWCAP key.
321 * New locales: mag_IN
323 * New configure option --enable-systemtap builds SystemTap static probes
324 into libc for setjmp and longjmp and into libpthread for various operations.
325 So far the setjmp/longjmp probes and some of the libpthread probes are
326 provided only for i*86 and x86_64.
327 Implemented by Roland McGrath and Rayson Ho.
329 * Optimized expf for x86-32 and x86-64. Implemented by Liubov Dmitrieva.
331 * More optimized functions for PowerPC. Implemented by Adhemerval Zanella
332 and Will Schmidt.
334 * More optimized functions for SPARC. Implemented by David S. Miller.
336 * Improved support for cross-compilation, especially bootstrap builds
337 without a previously built glibc.
339 * Ports for the TILE-Gx and TILEPro families of processors. Contributed by
340 Chris Metcalf from Tilera.
342 * Support for the old ARM ABI has been removed from ports. Only the EABI is
343 now supported for ARM processors.
345 * The hard-float variant of the ARM EABI now uses /lib/ld-linux-armhf.so.3
346 as the name of the dynamic linker, to distinguish it from the
347 /lib/ld-linux.so.3 dynamic linker used for the base EABI.
349 * Support for CRIS has been removed from ports.
351 * A new class of installed header has been documented for low-level
352 platform-specific functionality. PowerPC added the first instance with a
353 function to provide time base register access. Contributed by Tulio
354 Magno Quites Machado Filho.
356 * ix86 configurations now install header files that are consistent with
357 what x86-64 configurations install. These same header files can be used
358 for -m32, -m64, or -mx32 builds.
359 Contributed by H.J. Lu.
361 * Math library bug fixes. A thorough audit of all open math library bugs was
362 conducted by Joseph Myers. Significant progress was made on many math
363 library bugs resulting in more accurate exceptions and function results.
364 Many thanks to all those that contributed including Andreas Jaeger for his
365 patch review and work on the x87 trigonometric instruction issues.
367 * Timezone data is no longer installed. Timezone-related binaries and scripts
368 will continue to be installed. Users should obtain their timezone data from
369 their distribution provider or from the tzdata package at
370 <ftp://munnari.oz.au/pub/>.
371 \f
372 Version 2.15
374 * The following bugs are resolved with this release:
376 6779, 6783, 9696, 10103, 10709, 11589, 11929, 12403, 12786, 12840, 12847,
377 12868, 12852, 12874, 12885, 12892, 12906, 12907, 12922, 12935, 12962,
378 13007, 13021, 13061, 13062, 13067, 13068, 13085, 13088, 13090, 13092,
379 13096, 13114, 13118, 13123, 13134, 13138, 13147, 13150, 13166, 13179,
380 13185, 13189, 13192, 13268, 13276, 13282, 13291, 13305, 13328, 13335,
381 13337, 13344, 13358, 13367, 13413, 13416, 13423, 13439, 13446, 13472,
382 13484, 13506, 13515, 13523, 13524, 13538, 13540
384 * New program pldd to list loaded object of a process
385 Implemented by Ulrich Drepper.
387 * Add nss_db support back to glibc. No more dependency on Berkeley db
388 and support for initgroups lookups.
389 Implemented by Ulrich Drepper.
391 * Optimized strcpy, strncpy, stpcpy, stpncpy for SSE2 and SSSE3 on x86-32.
392 Contributed by HJ Lu.
394 * Improved strcpy, strncpy, stpcpy, stpncpy for SSE2 and SSSE3 on x86-64.
395 Contributed by HJ Lu.
397 * Optimized strcat, strncat on x86-64 and optimized wcscmp, wcslen, strnlen
398 on x86-32 and x86-64.
399 Contributed by Liubov Dmitrieva.
401 * Optimized strchr and strrchr for SSE on x86-32.
402 Contributed by Liubov Dmitrieva.
404 * Optimized memchr, memrchr, rawmemchr, memcmp, wmemcmp, wcschr, wcscpy
405 for x86-64 and x86-32.
406 Contributed by Liubov Dmitrieva.
408 * New interfaces: scandirat, scandirat64
409 Implemented by Ulrich Drepper.
411 * Checking versions of FD_SET, FD_CLR, and FD_ISSET added.
412 Implemented by Ulrich Drepper.
414 * nscd now also caches the netgroup database.
415 Implemented by Ulrich Drepper.
417 * Integrate libm with gcc's -ffinite-math-only option.
418 Implemented by Ulrich Drepper.
420 * Lots of generic, 64-bit, and x86-64-specific performance optimizations
421 to math functions. Implemented by Ulrich Drepper.
423 * Optimized strcasecmp and strncasecmp for AVX on x86-64.
424 Implemented by Ulrich Drepper.
426 * New Linux interfaces: process_vm_readv, process_vm_writev
428 * Optimized strcasecmp and strncasecmp for SSSE3 and SSE4.2 on x86-32.
429 Implemented by Ulrich Drepper.
431 * Optimized nearbyint and strcasecmp for PPC.
432 Implemented by Adhemerval Zanella.
434 * New locales: bho_IN, unm_US, es_CU, ta_LK
435 \f
436 Version 2.14
438 * The following bugs are resolved with this release:
440 386, 6420, 7101, 9730, 9732, 9809, 10138, 10149, 10157, 11099, 11257,
441 11258, 11487, 11532, 11558, 11578, 11634, 11653, 11668, 11697, 11724,
442 11781, 11799, 11820, 11837, 11857, 11869, 11892, 11895, 11901, 11945,
443 11947, 11952, 11987, 12052, 12083, 12158, 12178, 12200, 12346, 12350,
444 12393, 12420, 12432, 12445, 12449, 12453, 12454, 12460, 12469, 12489,
445 12509, 12510, 12511, 12518, 12527, 12541, 12545, 12551, 12582, 12583,
446 12587, 12597, 12601, 12611, 12625, 12626, 12631, 12650, 12653, 12655,
447 12660, 12671, 12681, 12684, 12685, 12711, 12713, 12714, 12717, 12723,
448 12724, 12734, 12738, 12746, 12766, 12775, 12777, 12782, 12788, 12792,
449 12795, 12811, 12813, 12814, 12841
451 * The RPC implementation in libc is obsoleted. Old programs keep working
452 but new programs cannot be linked with the routines in libc anymore.
453 Programs in need of RPC functionality must be linked against TI-RPC.
454 The TI-RPC implementation is IPv6 enabled and there are other benefits.
456 Visible changes of this change include (obviously) the inability to link
457 programs using RPC functions without referencing the TI-RPC library and the
458 removal of the RPC headers from the glibc headers.
459 Implemented by Ulrich Drepper.
461 * New Linux interfaces: clock_adjtime, name_to_handle_at, open_by_handle_at,
462 syncfs, setns, sendmmsg
464 * New locales: os_RU, bem_ZA, en_ZA, ff_SN, sw_KE, sw_TZ, lb_LU, wae_CH,
465 yue_HK, lij_IT, mhr_RU
467 * New encodings: CP770, CP771, CP772, CP773, CP774
469 * New program sotruss to trace calls through PLTs
470 Implemented by Ulrich Drepper.
472 * The malloc hook implementation is marked deprecated and will be removed
473 from the default implementation in the next version. The design never
474 worked ever since the introduction of threads. Even programs which do
475 not create threads themselves can use multiple threads created internally.
476 \f
477 Version 2.13
479 * The following bugs are resolved with this release:
481 3268, 6812, 7066, 10085, 10484, 10563, 10851, 11149, 11155, 11577, 11611,
482 11640, 11655, 11701, 11840, 11856, 11883, 11903, 11904, 11968, 11979,
483 12005, 12037, 12067, 12077, 12078, 12092, 12093, 12107, 12108, 12113,
484 12140, 12159, 12167, 12191, 12194, 12201, 12204, 12205, 12207, 12348,
485 12378, 12394, 12397
487 * New Linux interfaces: prlimit, prlimit64, fanotify_init, fanotify_mark
489 * POWER7 optimizations: memset, memcmp, strncmp
491 * New optimized string functions for x86-64: strnlen (SSE2),
492 strcasecmp (SSE2, SSSE3, SSE4.2), strncasecmp (SSE2, SSSE3, SSE4.2)
493 Implemented by Ulrich Drepper.
494 \f
495 Version 2.12
497 * The following bugs are resolved with this release:
499 3662, 4457, 5553, 10162, 10401, 10414, 10554, 10824, 10864, 10915,
500 10918, 10936, 10939, 10958, 10968, 10969, 10972, 10992, 11000, 11001,
501 11007, 11010, 11027, 11039, 11040, 11041, 11043, 11046, 11056, 11070,
502 11093, 11115, 11125, 11126, 11127, 11134, 11141, 11149, 11183, 11184,
503 11185, 11186, 11187, 11188, 11189, 11190, 11191, 11192, 11193, 11194,
504 11200, 11230, 11235, 11242, 11254, 11258, 11271, 11272, 11276, 11279,
505 11287, 11292, 11319, 11332, 11333, 11387, 11389, 11390, 11394, 11397,
506 11410, 11438, 11449, 11470, 11471, 11520, 11537, 11538, 11571
508 * New interfaces: pthread_getname_np, pthread_setname_np
510 * New Linux interface: recvmmsg
512 * STT_GNU_IFUNC implemented for Sparc by David Miller.
514 * The dynamic linker now recognizes supported ABI versions from the
515 EI_ABIVERSION field in the ELF header.
516 Implemented by Ulrich Drepper.
518 * New NIS mode selector ADJUNCT_AS_SHADOW. The passwd.adjunct.byname table
519 will not be used to fill in password fields in the passwd.byname replies.
520 Instead it is used to synthesize the shadow.byname table, should it be
521 missing. This is a useful mode in some installations involving Solaris.
522 Implemented by Ulrich Drepper.
524 * New locales: kok_IN, sq_MK, cv_RU
525 \f
526 Version 2.11
528 * The following bugs are resolved with this release:
530 3270, 7094, 9924, 9986, 10011, 10085, 10107, 10159, 10162, 10166, 10183,
531 10195, 10196, 10200, 10203, 10207, 10211, 10213, 10217, 10221, 10229,
532 10262, 10286, 10312, 10315, 10319, 10349, 10360, 10391, 10402, 10416,
533 10418, 10422, 10425, 10446, 10448, 10452, 10540, 10553, 10560, 10564,
534 10609, 10643, 10692, 10713, 10717, 10730, 10731, 10742, 10780, 10784,
535 10789, 10817, 10823, 10840, 10847
537 * New interfaces: execvpe, pthread_sigqueue, mkstemps, mkstemps64, mkostemps,
538 mkostemps64
539 Implemented by Ulrich Drepper.
541 * Checking version of longjmp added that fails if an uninitialized stack
542 frame would be created. Implemented by Ulrich Drepper.
544 * STT_GNU_IFUNC is now supported in static executables.
545 Implemented by H.J. Lu.
547 * STT_GNU_IFUNC implemented for PPC by Alan Modra.
549 * New optimized string functions for x86-64: strstr, strcasestr, memcmp,
550 strcspn, strpbrk, strspn, strcpy, stpcpy, strncpy, strcmp (SSE2, SSE4.2),
551 strncmp (SSE2, SSE4.2), strchr (SSE4.2), strrchr (SSE4.2).
552 Contributed by H.J. Lu.
554 strlen, rawmemchr, strcmp (SSSE3), strncmp (SSSE3).
555 Implemented by Ulrich Drepper.
557 * New optimized string functions for x86: strlen, strcspn, strspn, strpbrk,
558 strstr, strcasestr.
559 Contributed by H.J. Lu.
561 * Support for fma instruction in AVX on x86-64.
562 Implemented by H.J. Lu and Ulrich Drepper.
564 * AVX support in x86-64 auditing support in ld.so.
565 Implemented by H.J. Lu.
567 * STB_GNU_UNIQUE support added.
568 Implemented by Ulrich Drepper.
570 * Implement second fallback mode for optimized DNS lookup for even more
571 broken environments. If two requests from the same port are not
572 handled correctly close the socket and open a new one before sending
573 the second request. The 'single-request-reopen' option in /etc/resolv.conf
574 can be used to select this mode right away, instead of rediscovering the
575 necessity is every process again.
576 Implemented by Ulrich Drepper.
578 * New resolver flag RES_USE_DNSSEC to enable use of verified lookup.
579 Implemented by Adam Tkac.
581 * Optimized iconv conversions for S390x.
582 Implemented by Andreas Krebbel.
584 * Using condvars with PI mutexes is now more efficient due to kernel
585 support for requeueing to PI futexes. NPTL support added for x86-64.
586 Implemented by Ulrich Drepper.
588 * New locales: ps_AF, my_MM
589 \f
590 Version 2.10
592 * The following bugs are resolved with this release:
594 697, 5381, 5807, 6411, 6545, 7040, 7058, 7067, 7080, 7083, 7095, 7098,
595 9677, 9694, 9697, 9701, 9704, 9705, 9706, 9720, 9726, 9730, 9733, 9736,
596 9741, 9750, 9753, 9759, 9781, 9791, 9793, 9823, 9833, 9844, 9880, 9881,
597 9891, 9893, 9895, 9913, 9916, 9920, 9948, 9955, 9957, 9963, 9985, 10052,
598 10069, 10086, 10087, 10090, 10092, 10093, 10100, 10118, 10128
600 * New interfaces: preadv, preadv64, pwritev, pwritev64, malloc_info
601 Implemented by Ulrich Drepper.
603 * New Linux interfaces: accept4, fallocate, fallocate64.
604 Implemented by Ulrich Drepper.
606 * Correct declarations of string function when used in C++ code. This
607 could lead to compile errors for invalid C++ code.
609 * XPG7/POSIX 2008 compilation environment. Many GNU-specific functions are
610 now in POSIX.
612 * New POSIX 2008 interface: psiginfo
613 Implemented by Ulrich Drepper.
615 * New ISO C++1x interfaces: quick_exit, at_quick_exit
616 Implemented by Ulrich Drepper.
618 * Support for selecting between multiple function definitions at runtime
619 using STT_GNU_IFUNC symbols. Implemented by Ulrich Drepper.
621 * The libcrypt library can now use the hash function implementations in
622 NSS. Implemented by Ulrich Drepper.
624 * The malloc implementation can be compiled to be less memory efficient
625 but higher performing in multi-threaded programs.
626 Implemented by Ulrich Drepper.
628 * New locales: nan_TW@latin, ks_IN
630 * Faster strlen, strchr, strchrnul, strrchr, memchr, and rawmemchr for x86-64.
631 Implemented by Ulrich Drepper.
633 * Extended printf hook support. It is possible to use user-defined types
634 and extend existing format specifiers.
635 Implemented by Ulrich Drepper.
637 * Handling for group shadow files has been added.
638 Implemented by Ulrich Drepper.
640 * DNS IPv4-IPv6 parallel lookup now deals better with broken DNS
641 servers (the case, e.g., for some people using the built-in DNS
642 server in ADSL modems/routers). There is a once-per-process timeout
643 in case of a broken server. To avoid it, users can run nscd or put
644 'options single-request' in /etc/resolv.conf.
645 Implemented by Ulrich Drepper.
646 \f
647 Version 2.9
649 * The following bugs are resolved with this release:
651 3406, 5209, 5210, 5381, 5794, 5814, 5911, 6428, 6438, 6442, 6447, 6461,
652 6472, 6505, 6544, 6589, 6612, 6634, 6653, 6654, 6657, 6698, 6712, 6713,
653 6719, 6723, 6724, 6740, 6763, 6771, 6790, 6791, 6817, 6824, 6839, 6843,
654 6845, 6856, 6857, 6860, 6867, 6875, 6919, 6920, 6942, 6947, 6955, 6966,
655 6968, 6974, 6980, 6995, 7008, 7009, 7029
657 * Unified lookup for getaddrinfo: IPv4 and IPv6 addresses are now looked
658 up at the same time. Implemented by Ulrich Drepper.
660 * TLS descriptors for LD and GD on x86 and x86-64.
661 Implemented by Alexandre Oliva.
663 * getaddrinfo now handles DCCP and UDPlite.
664 Implemented by Ulrich Drepper.
666 * New fixed-size conversion macros: htobe16, htole16, be16toh, le16toh,
667 htobe32, htole32, be32toh, le32toh, htobe64, htole64, be64toh, le64toh.
668 Implemented by Ulrich Drepper.
670 * New implementation of memmem, strstr, and strcasestr which is O(n).
671 Implemented by Eric Blake.
673 * New Linux interfaces: inotify_init1, dup3, epoll_create1, pipe2
675 * Implement "e" option for popen to open file descriptor with the
676 close-on-exec flag set. Implemented by Ulrich Drepper.
678 * Implement "b" mode for fmemopen. In this mode writes writes don't
679 implicitly add a NUL byte and seeks from the end of the buffer really
680 use the buffer end, not the string length as the basis.
681 Implemented by Ulrich Drepper.
683 * Many functions, exported and internal, now atomically set the close-on-exec
684 flag when run on a sufficiently new kernel. Implemented by Ulrich Drepper.
686 * Sorting rules for some Indian languages (Kannada, Gurumukhi, Telugu,
687 Sinhala)
688 Implemented by Pravin Satpute.
690 * New locales: sd_IN, sd_IN@devanagari, ks_IN@devanagari, ht_HT, en_AG, nl_AW.
691 \f
692 Version 2.8
694 * The following bugs are resolved with this release:
696 2549, 3112, 4314, 4407, 4997, 5012, 5040, 5112, 5204, 5208, 5209, 5220,
697 5222, 5224, 5225, 5237, 5238, 5240, 5245, 5277, 5346, 5375, 5378, 5382,
698 5424, 5427, 5428, 5435, 5436, 5439, 5441, 5442, 5443, 5451, 5452, 5454,
699 5455, 5463, 5464, 5465, 5475, 5477, 5478, 5520, 5541, 5545, 5553, 5600,
700 5602, 5607, 5614, 5627, 5628, 5736, 5737, 5741, 5753, 5760, 5762, 5768,
701 5774, 5777, 5778, 5779, 5786, 5790, 5818, 5854, 5857, 5903, 5939, 5979,
702 5983, 5995, 5998, 6004, 6007, 6020, 6021, 6024, 6040, 6042
704 * New locales: bo_CN, bo_IN, shs_CA.
706 * New encoding: HP-ROMAN9, HP-GREEK8, HP-THAI8, HP-TURKISH8.
708 * Sorting rules for some Indian languages (Devanagari and Gujarati).
709 Implemented by Pravin Satpute.
711 * IPV6 addresses in /etc/resolv.conf can now have a scope ID
713 * nscd caches now all timeouts for DNS entries
714 Implemented by Ulrich Drepper.
716 * nscd is more efficient and wakes up less often.
717 Implemented by Ulrich Drepper.
719 * More checking functions: asprintf, dprintf, obstack_printf, vasprintf,
720 vdprintf, and obstack_vprintf.
721 Implemented by Jakub Jelinek.
723 * Faster memset for x86-64.
724 Implemented by Harsha Jagasia and H.J. Lu.
726 * Faster memcpy on x86.
727 Implemented by Ulrich Drepper.
729 * ARG_MAX is not anymore constant on Linux. Use sysconf(_SC_ARG_MAX).
730 Implemented by Ulrich Drepper.
732 * Faster sqrt and sqrtf implemention for some PPC variants.
733 Implemented by Steven Munroe.
734 \f
735 Version 2.7
737 * The following bugs are resolved with this release:
739 4125, 4126, 4178, 4359, 4407, 4512, 4514, 4525, 4554, 4556, 4557, 4566,
740 4582, 4586, 4588, 4599, 4610, 4647, 4702, 4705, 4726, 4745, 4772, 4773,
741 4775, 4776, 4792, 4813, 4814, 4816, 4833, 4858, 4860, 4896, 4905, 4925,
742 4936, 4937, 4938, 4941, 4946, 4963, 4972, 5010, 5028, 5043, 5058, 5063,
743 5071, 5103, 5104, 5112, 5113, 5184, 5186
745 * More checking functions: fread, fread_unlocked, open*, mq_open.
746 Implemented by Jakub Jelinek and Ulrich Drepper.
748 * Extend fortification to C++. Implemented by Jakub Jelinek.
750 * Implement 'm' modifier for scanf. Add stricter C99/SUS compliance
751 by not recognizing 'a' as a modifier when those specs are requested.
752 Implemented by Jakub Jelinek.
754 * PPC optimizations to math and string functions.
755 Implemented by Steven Munroe.
757 * New interfaces: mkostemp, mkostemp64. Like mkstemp* but allow additional
758 options to be passed. Implemented by Ulrich Drepper.
760 * More CPU set manipulation functions. Implemented by Ulrich Drepper.
762 * New Linux interfaces: signalfd, eventfd, eventfd_read, and eventfd_write.
763 Implemented by Ulrich Drepper.
765 * Handle private futexes in the NPTL implementation.
766 Implemented by Jakub Jelinek and Ulrich Drepper.
768 * Add support for O_CLOEXEC. Implement in Hurd. Use throughout libc.
769 Implemented by Roland McGrath and Ulrich Drepper.
771 * Linux/x86-64 vDSO support. Implemented by Ulrich Drepper.
773 * SHA-256 and SHA-512 based password encryption.
774 Implemented by Ulrich Drepper.
776 * New locales: ber_DZ, ber_MA, en_NG, fil_PH, fur_IT, fy_DE, ha_NG, ig_NG,
777 ik_CA, iu_CA, li_BE, li_NL, nds_DE, nds_NL, pap_AN, sc_IT, tk_TM, ug_CN,
778 yo_NG.
780 + New iconv modules: MAC-CENTRALEUROPE, ISO-8859-9E, KOI8-RU.
781 Implemented by Ulrich Drepper.
782 \f
783 Version 2.6
785 * The following bugs are resolved with this release:
787 3156, 3213, 3285, 3291, 3306, 3313, 3320, 3322, 3325, 3326, 3334, 3348,
788 3352, 3363, 3369, 3426, 3427, 3429, 3451, 3458, 3465, 3480, 3483, 3493,
789 3514, 3515, 3559, 3632, 3664, 3673, 3674, 3745, 3747, 3818, 3840, 3842,
790 3851, 3855, 3884, 3885, 3902, 3905, 3919, 3944, 3954, 3955, 3957, 3991,
791 3995, 3996, 4024, 4040, 4069, 4070, 4074, 4076, 4096, 4101, 4102, 4114,
792 4130, 4131, 4181, 4276, 4306, 4342, 4344, 4349, 4364, 4368, 4381, 4392,
793 4403, 4405, 4406, 4411, 4438, 4439, 4455, 4456, 4465, 4512, 4514, 4586,
794 4702, 4858
796 * New Linux interfaces: epoll_pwait, sched_getcpu.
798 * New generic interfaces: strerror_l.
800 * nscd can now cache the services database. Implemented by Ulrich Drepper.
801 \f
802 Version 2.5
804 * The following bugs are resolved with this release:
806 39, 68, 192, 352, 388, 531, 935, 1006, 1201, 1203, 1386, 1782, 1783, 1784,
807 1785, 1786, 1787, 1951, 1974, 1996, 2072, 2098, 2125, 2134, 2158, 2182,
808 2349, 2376, 2386, 2389, 2415, 2418, 2420, 2423, 2450, 2451, 2466, 2472,
809 2473, 2477, 2498, 2499, 2501, 2502, 2505, 2507, 2508, 2509, 2517, 2526,
810 2569, 2571, 2592, 2611, 2625, 2632, 2644, 2662, 2680, 2683, 2684, 2693,
811 2695, 2703, 2734, 2751, 2764, 2766, 2775, 2792, 2821, 2823, 2832, 2841,
812 2843, 2883, 2892, 2908, 2914, 2926, 2961, 2978, 2980, 2987, 2997, 2998,
813 3013, 3018, 3034, 3040, 3044, 3123, 3124, 3137, 3138, 3143, 3155, 3189,
814 3225, 3251, 3252, 3253, 3273
816 * For Linux, the sorting of addresses returned by getaddrinfo now also
817 handles rules 3, 4, and 7 from RFC 3484. I.e., all rules are handled.
818 Implemented by Ulrich Drepper.
820 * Allow system admin to configure getaddrinfo with the /etc/gai.conf file.
821 Implemented by Ulrich Drepper.
823 * New Linux interfaces: splice, tee, sync_file_range, vmsplice.
825 * New iconv module for MIK. Contributed by Alexander Shopov.
827 * For sites with broken group and/or passwd database, the auto-propagate
828 option of nscd can prevent creating ID lookup entries from the results
829 of a name lookup and vice versa. This usually is no problem but some
830 site might have problems with the default behavior.
831 Implemented by Ulrich Drepper.
833 * Iterating over entire database in NIS can be slow. With the
834 SETENT_BATCH_READ option in /etc/default/nss a system admin can decide
835 to trade time for memory. The entire database will be read at once.
836 Implemented by Ulrich Drepper.
838 * The interfaces introduced in RFC 3542 have been implemented by
839 Ulrich Drepper.
841 * Support for the new ELF hash table format was added by Ulrich Drepper.
843 * Support for priority inheritance mutexes added by Jakub Jelinek and
844 Ulrich Drepper.
846 * Support for priority protected mutexes added by Jakub Jelinek.
848 * New locales: nr_ZA, pa_PK, ca_AD, ca_FR, ca_IT, el_CY, tr_CY, as_IN,
849 or_IN, csb_PL, fy_NL, sr_ME.
850 \f
851 Version 2.4
853 * More overflow detection functions.
855 * New iconv converters for IBM1025, IBM1122, IBM1137, IBM1153,
856 IBM1154, IBM1155, IBM1156, IBM1157, and IBM1158 contributed by Jiro Sekiba.
858 More converters for IBM803, IBM901, IBM902, IBM921, IBM1008, IBM1097,
859 IBM1112, IBM1123, IBM1130, IBM1140, IBM1141, IBM1142, IBM1143, IBM1144,
860 IBM1145, IBM1146, IBM1147, IBM1148, IBM1149, IBM1166, IBM1167, IBM4517,
861 IBM4899, IBM4909, IBM4971, IBM5347, IBM9030, IBM9066, IBM9448, IBM12712,
862 IBM16804, IBM1364, IBM1371, IBM1388, IBM1390, and IBM1399 contributed
863 by Masahide Washizawa.
865 * It is now possible to install audit libraries for the dynamic linker using
866 LD_AUDIT. Implemented by Ulrich Drepper.
868 * The LinuxThreads add-on, providing pthreads on Linux 2.4 kernels, is no
869 longer supported. The new NPTL implementation requires Linux 2.6 kernels.
870 For a libc and libpthread that works well on Linux 2.4 kernels, we
871 recommend using the stable 2.3 branch.
873 * The new function open_wmemstream acts like open_memstream,
874 but uses a wchar_t wide character buffer.
876 * The new function ppoll is an improved version of poll, similar to pselect.
878 * New interfaces: fdopendir, openat, fstatat, fchmodat, fchownat,
879 futimesat, faccessat, mkdirat, mkfifoat, mknodat,
880 renameat, unlinkat, linkat, symlinkat, readlinkat.
882 * New Linux kernel system calls: unshare,
883 inotify_init, inotify_add_watch, inotify_rm_watch.
885 * The euidaccess function is now also known by the alias eaccess,
886 for compatibility with some other systems.
888 * Timezone data updated to 2006b version.
889 \f
890 Version 2.3.6
892 * The following bugs are resolved with this release:
894 38, 253, 549, 622, 653, 721, 758, 851, 877, 915, 934, 955, 961,
895 1016, 1037, 1076, 1079, 1080, 1081, 1082, 1083, 1084, 1085, 1086,
896 1087, 1088, 1090, 1091, 1092, 1093, 1094, 1095, 1096, 1097, 1098,
897 1099, 1100, 1101, 1102, 1103, 1104, 1105, 1106, 1107, 1108, 1109,
898 1110, 1111, 1112, 1113, 1125, 1137, 1138, 1249, 1250, 1251, 1252,
899 1253, 1254, 1350, 1358, 1394, 1438, 1498, 1534
901 Visit <http://sources.redhat.com/bugzilla/> for the details of each bug.
903 * As of this release, GCC 4 can be used to compile the C Library.
905 * Timezone data updated to 2005m version.
906 \f
907 Version 2.3.5
909 * The following bugs are resolved with this release:
911 284, 592, 602, 626, 633, 640, 650, 661, 671, 681, 693, 700, 710, 719,
912 722, 723, 725, 726, 727, 728, 729, 730, 731, 732, 733, 734, 735, 736,
913 737, 738, 739, 740, 741, 742, 743, 744, 745, 765, 767, 768, 769, 776,
914 777, 787, 821, 822, 823, 825
916 Visit <http://sources.redhat.com/bugzilla/> for the details of each bug.
917 \f
918 Version 2.3.4
920 * Support for RFC 3678. Real implementations exist only for Linux so far.
921 Implemented by Ulrich Drepper.
923 * nscd can now cache entries persistently. Expiring entries are reloaded.
924 For speedups the cache can be shared in memory with client processes.
925 Implemented by Ulrich Drepper.
927 * nscd can now perform SELinux checks.
928 Implemented by Matthew Rickard <mjricka@epoch.ncsc.mil>.
930 * getaddrinfo queries are now cached. Canonical name lookup is performed
931 efficiently.
932 Implemented by Ulrich Drepper.
934 * The nothrow function attribute is used when headers are used by gcc when
935 compiling C code. This can avoid significant amounts of exception
936 handling data.
938 * The malloc functions perform more error checking and are stricter when
939 it comes to reacting on errors. The default action is to terminate
940 the process after showing an error message. Implemented by Ulrich Drepper.
942 * Reverse lookups of IPv6 addresses does not use bit string or .ip6.int
943 lookups anymore unless explicitly requested. Implemented by Ulrich Drepper.
945 * Namespaces in ld.so are implemented. DSOs can be loaded in separate
946 namespaces using the new function dlmopen(). This feature is of course,
947 like most other dynamic loading functionality, not available in statically
948 linked applications. Implemented by Ulrich Drepper.
950 * Low-overhead boundary checking variants of string and some stdio functions
951 were added. These are to be used in conjunction with a gcc patch by
952 Jakub Jelinek which adds calls to these functions if possible.
953 Implemented by Jakub Jelinek and Ulrich Drepper.
955 * Old code for several operating systems and machine architectures that
956 have not been in working condition in a long time have been removed from
957 the main source tree maintained by the GNU C Library's maintainers.
958 These files are now reside in the separate `ports' source module
959 that is usable as an add-on when building the library.
960 \f
961 Version 2.3.3
963 * New functions `dladdr1' and `dlinfo' in <dlfcn.h> provide more ways to
964 interrogate the dynamic linker, compatible with the Solaris interface.
966 * ELF thread-local storage support (TLS) now works on PowerPC and PowerPC64;
967 implemented by Paul Mackerras, Steven Munroe, and Roland McGrath.
969 * getifaddrs now uses the netlink interface on Linux to get its information.
970 Implemented by Thorsten Kukuk.
972 * getaddrinfo now implements AI_V4MAPPED, AI_ALL, and AI_ADDRCONF.
973 Implemented by Ulrich Drepper.
975 * support for non-executable stacks on x86 has been added. Changes mostly
976 by Roland McGrath.
978 * regex is now much faster for multibyte locales. Changes by Jakub Jelinek
979 and Ulrich Drepper.
981 * getaddrinfo now performs destination address selection according to
982 RFC 3484.
983 \f
984 Version 2.3.2
986 * Thread-safe interfaces for many functions that access locale data
987 were added in version 2.3, but these features were omitted from NEWS.
988 Many functions have variants with an `_l' suffix that take a `locale_t'
989 object as a parameter rather than consulting the current locale.
990 The new functions `newlocale', `duplocale', and `freelocale' in <locale.h>
991 create and maintain `locale_t' objects. Additionally, the new function
992 `uselocale' sets "the current locale" (as used by functions not so
993 parameterized) set for an individual thread. These features were added
994 in version 2.3, implemented by Ulrich Drepper and Roland McGrath.
996 * The functions getresuid, getresgid, setresuid, and setresgid, which
997 have long been available on Linux, are now declared in <unistd.h>
998 and are now also available on the Hurd.
1000 * ELF thread-local storage support (TLS) now works on x86-64.
1002 * The new dynamic string token $LIB is expanded in shared library names.
1003 This normally expands to lib, but on some 64-bit platforms to lib64 instead.
1005 * Aldy Hernandez contributed complete software floating point support for
1006 PowerPC machines with no FPU.
1008 * fexecve is implemented on Linux.
1010 * The `btowc' function should work at least twice as fast due to
1011 specialized callbacks in the iconv modules. Implemented by Bruno Haible.
1013 * With approriate thread add-ons cancelable functions are now implemented
1014 in libc.so as well. No need to call the function in libpthread. This
1015 change allowed to finally disable the incorrect and expensive handling
1016 of weak definition in ld.so.
1018 * Yet more PLT entries in libc.so have been removed. We finally arrived
1019 at the bare minimum. Startup times improved appropriately.
1021 * Support for the new Linux/x86 system call interface was added. The
1022 AT_SYSINFO auxiliary vector entry is recognized and handled.
1023 \f
1024 Version 2.3
1026 * Masahide Washizawa contributed iconv modules for IBM1163 and IBM1164
1027 charsets.
1029 * iconv (the program and the interface) now accepts empty names (excluding
1030 options like //TRANSLIT) to mean "use charset of current locale".
1032 * localedef can now transliterate characters in strings which are not in
1033 the provided charmap. The information from the input locale is used.
1035 * Prelinking support was added for ELF targets. This requires additional
1036 tools and recent versions of the GNU binutils. Contributed by Jakub Jelinek.
1038 * Read-only stdio streams now use mmap to speed up operation by eliminating
1039 copying and buffer underflows. To use add 'm' to the mode string of
1040 the fopen/fdopen/freopen call. Implemented by Ulrich Drepper.
1042 * The malloc functions were completely rewritten by Wolfram Gloger based
1043 on Doug Lea's malloc-2.7.0.c.
1045 * Isamu Hasegawa contributed a completely new and POSIX-conformant
1046 implementation of regex.
1048 * Bruno Haible upgraded the iconv and locale implementation to support
1049 Unicode 3.2.
1051 * Contents of the LC_* and LANG environment variables in the CEN style are
1052 not recognized anymore. It never was used. Change by Ulrich Drepper.
1054 * The runtime (ld.so, libc, libpthread for Linux) now can handle the ELF
1055 thread-local storage (TLS) ABI on some platforms.
1056 Changes by Ulrich Drepper. SH support by Kaz Kojima.
1058 * Bruno Haible contributed iconv converters for ISO-2022-JP-3, SHIFT JIS-X0213,
1059 EUC-JISX0213, and TSCII.
1061 * New header <ifaddrs.h> with functions `getifaddrs' and `freeifaddrs':
1062 BSD-compatible interface for getting all network interface addresses.
1063 Implementation for IPv4 by Roland McGrath.
1065 * Loading of locale data is faster due to the introduction of a locale
1066 archive. Implemented by Roland McGrath and Ulrich Drepper.
1068 * Startup times are significantly reduced by not using exported functions
1069 inside the library itself. Changes by Jakub Jelinek, Roland McGrath,
1070 and Ulrich Drepper.
1072 * Steven Munroe contributed a port to PowerPC64/Linux.
1073 \f
1074 Version 2.2.6
1076 * The Hurd now uses the GNU libio implementation of stdio rather than the
1077 old GNU stdio implementation, and uses a new ABI (libc.so.0.3).
1079 * The Hurd on x86 now has the `ioperm' function and <sys/io.h> header file
1080 with the same behavior as the Linux system call of the same name.
1081 \f
1082 Version 2.2.5
1084 * Stephen Moshier implemented log2, log10, powl and cbrtl for the
1085 128-bit long double format.
1087 * Masahide Washizawa contributed iconv modules for IBM1132, IBM1133, IBM1160,
1088 IBM1161, and IBM1162 charsets.
1090 * Andreas Jaeger contributed a port to x86-64/Linux.
1092 * Peter Bruin contributed a port to PowerPC/Hurd.
1094 * libc functions using I/O streams now can handle wide-oriented streams
1095 as well.
1097 * optimizations in the dynamic linker. Binaries created by recent binutils
1098 versions start up quicker due to reduced time spent on relocations.
1100 * Support for use of gcc3 added by Jakub Jelinek and HJ Lu.
1101 \f
1102 Version 2.2.4
1104 * Stephen Moshier implemented cosh, expm1, log1p, acos, sinh, tanh,
1105 asinh, atanh, j0 for the 128-bit long double format.
1107 * Bruno Haible updated all the code handling Unicode in some form to
1108 support Unicode 3.1.
1110 * Speed of regex for single-byte locales is back to previous levels.
1111 Patch by Isamu Hasegawa.
1113 * Alpha, SPARC, and IA-64 now also using floating stacks.
1115 * Startup time of internationalized applications greatly improved through
1116 iconv cache. Use iconvconfig to generate the cache file.
1117 Contributed by Ulrich Drepper.
1119 * The IA-64 specific part of ld.so was rewritten to eliminate some pretty
1120 severe performance problems. Patch by David Mosberger.
1122 * The Hurd port got a lot more functionality like AIO, various stdio
1123 extensions, etc. Mainly done by Roland McGrath.
1125 * mtrace can now lookup symbols in shared libraries.
1126 \f
1127 Version 2.2.3
1129 * Intel's IA-64 math library is largely integrated. It provides fast and
1130 accurate implementatations for most basic and standard math functions
1131 in float, double, and long double format.
1133 * Stephen Moshier implemented j0, j1, jn, y0, y1, yn, lgamma, erf, erfc,
1134 and asin for the 96-bit long double format and asin, log, tan for the
1135 128-bit long double format.
1137 * The beginning of a last-bit accurate math library by IBM Haifa were added.
1138 The basic double functions exist today. Contributed by Abraham Ziv
1139 <ziv@il.ibm.com>, Moshe Olshansky <olshansk@il.ibm.com>, Ealan Henis
1140 <ealan@il.ibm.com>, and Anna Reitman <reitman@il.ibm.com>.
1142 * An asynchronous name lookup library was added. The interface is designed
1143 after POSIX AIO. The proposal was circulated beforehand to get comments.
1144 No negative ones came in. Implemented by Ulrich Drepper.
1146 * Port to S390/64bit contributed by Martin Schwidefsky
1147 <schwidefsky@de.ibm.com>.
1149 * David Mosberger <davidm@hpl.hp.com> implemented the setcontext family
1150 of functions for Linux/IA-64.
1152 * The RPC code is now thread safe. Threads can now use the same service
1153 of different services at the same time. Patch by Eric Norum
1154 <eric.norum@usask.ca> with some help by Ulrich Drepper.
1156 * Martin Schwidefsky <schwidefsky@de.ibm.com> implemented the setcontext
1157 family of functions for Linux/S390.
1159 * Ulrich Drepper <drepper@redhat.com> implemented the setcontext family
1160 of functions for Linux/x86.
1162 * Port to Linux/CRIS contributed by Axis Communications.
1163 \f
1164 Version 2.2.2
1166 * Lots of headers were cleaned up. Using the tool in the conform/ subdir
1167 we can now check for namespace violations and missing declarations. The
1168 result is that almost all headers are now Unix-compliant (as defined in
1169 the upcoming XPG6). The negative side is that some programs might need
1170 corrections, too, if they depend on the incorrect form of the headers in
1171 previous versions which defined too many symbols and included too many
1172 other headers.
1174 * regex now handles multibyte character sets correctly.
1175 Contributed by Isamu Hasegawa <isamu@yamato.ibm.com>.
1177 * iconv (the program) does now conform to the upcoming XPG6 and handles
1178 charmaps. Instead of the charset names the path of charmaps can be
1179 provided and the conversion happens based on this data.
1180 Contributed by Ulrich Drepper.
1182 * The locale program now provides detailed information about the installed
1183 locales. While
1185 locale -a
1187 only lists the names of the supported locales
1189 locale -a --verbose
1191 provides details such as country, language, and codeset name.
1192 Contributed by Ulrich Drepper.
1193 \f
1194 Version 2.2.1
1196 * The gencat program now parses the input file according to the charset
1197 selected by the LC_CTYPE category. This is important for stateful
1198 character sets. To make generating catalogs easier there is a way
1199 to overwrite the charset selected by the locale: before the first
1200 message or $ quote line the catalog can contain a line like
1202 $ codeset=ISO-8859-2
1204 to select the charset (ISO-8859-2 in this case).
1206 Implemented by Shinya Hanataka and Ulrich Drepper.
1208 * New codeset conversion modules: IBM-922 (Estonia PC codeset),
1209 IBM-1124 (Ukraine PC codeset), IBM-1129 (Vietnamese PC codeset).
1210 Contributed by Masahide Washizawa <washi@jp.ibm.com>.
1212 * Optimized string functions for Alpha ev6 and ev67 by Richard Henderson
1213 <rth@redhat.com> and Rick Gorton <rick.gorton@alpha-processor.com>.
1215 * The LANGUAGE environment variable is now ignored unless the locale is
1216 changed from the default "C" locale.
1218 * The usual bug fixes.
1219 \f
1220 Version 2.2
1222 * Greg McGary added runtime support for bounds checking using gcc's
1223 new -fbounded-pointers option. ix86 target is complete. PowerPC
1224 is in progress.
1226 * Thorsten Kukuk added secure mode support to nscd.
1228 * The Berkeley db libraries have been removed.
1230 Related, the nss_db module is now in a separate package since it
1231 obviously requires a database library being available.
1233 * Wide character I/O streams implemented by Ulrich Drepper.
1235 * Functions from the extended socket API added by Ulrich Drepper.
1237 * Functions feenableexcept and fedisableexcept to control the
1238 behaviour of individual exceptions have been added by Andreas Jaeger.
1240 * ldconfig program added by Andreas Jaeger and Jakub Jelinek.
1242 * The resolver code has been updated from bind 8.2.3-T5B which supports
1243 threads. The integration was done by Andreas Jaeger, Adam D. Bradley,
1244 and Mark Kettenis.
1246 This change could in some situations effect backward compatibility. Since
1247 now `_res' is a thread-local instead of a global variable, modifying it
1248 in one thread does not have any effect in other threads.
1250 The resolver library was also extended to allow IPv6 as the transport
1251 protocol for the requests. This work was done by Stig Venaas.
1253 * Compatibility code for K&R C compilers has been removed from the
1254 header files. A ISO C compiler is needed to use the library
1255 (conforming to either C89 or C99 standard).
1257 * Complete rewrite of the localedef program to support multibyte character
1258 sets. Implement handling of ISO 14651 and ISO 14652. Rewrite strcoll,
1259 strxfrm, wcscoll, and wcsxfrm functions. Make isw*() functions work.
1260 Implemented by Ulrich Drepper.
1262 Bruno Haible significantly improved the generation and use of the data
1263 structures for the wide character tables.
1265 * Plural handling in gettext implemented by Ulrich Drepper.
1267 * The utmp daemon has been removed.
1269 * The port to MIPS-Linux has been finished by Andreas Jaeger.
1271 * A port to Hitachi SH3 and SH4 has been contributed by Kazumoto Kojima
1272 and Yutaka Niibe.
1274 * POSIX clocks and timers implemented by Kaz Kylheku and Ulrich Drepper.
1276 * POSIX barriers implemented by Kaz Kylheku.
1278 * POSIX spawn function family implemented by Ulrich Drepper.
1280 * POSIX spinlocks are now available.
1282 * Timed wait functions for mutex, rwlock, and semaphores are implemented.
1284 * the configure option --enable-kernel=X.Y.Z allows to strip out
1285 compatibility for kernel versions before X.Y.Z. This is currently only
1286 implemented for Linux.
1288 * the sockaddr_in6 structure changed. The IPv6 working group added a new
1289 field sin6_scope_id. This means that all programs using IPv6 should be
1290 recompiled. Don't expect binary compatibility with previous glibc
1291 versions.
1293 * various conversion modules for IBM character sets contributed by
1294 Masahide Washizawa.
1296 * IA-64 port by Jes Sorensen and HJ Lu.
1297 \f
1298 Version 2.1.3
1300 * bug fixes
1302 \f
1303 Version 2.1.2
1305 * bug fixes
1307 \f
1308 Version 2.1.1
1310 * New ISO C 9x function _Exit, imaxabs, and imaxdiv are added.
1312 * New xdr functions are added; some rpc functions are now 64bit clean.
1314 * Fixed a number of bugs and memory leaks (especially in NIS+ code).
1316 * Fixed known incompatibilities with glibc 2.0.
1318 * New functions lock64, strchrnul, rawmemchr, getutmp and getutmpx.
1320 * Optimized a number of functions (especially the ELF dynamic loader).
1322 * Update timezone data files.
1324 * lots of charmaps corrections
1326 * some new locale definitions and charmaps
1328 \f
1329 Version 2.1
1331 * Richard Henderson corrected size of struct timeval on Linux/Alpha to
1332 conform to POSIX member type requirements. Symbol versions have been
1333 adjusted as needed within the library, and for direct use by applications,
1334 but there is potential for problems if third-party libraries use
1335 struct timeval as part of their interface. This does not present
1336 a problem for X and other "essential" system libraries.
1338 * An additional locale model to support C++ Standard Library locale
1339 model and probably more was implemented by Ulrich Drepper.
1341 * Eric Youngdale and Ulrich Drepper implemented versioning of objects on
1342 symbol level.
1344 * Miles Bader provided the `argp' function family to support hierachical
1345 command line argument parsing, layered on top of getopt.
1347 * strtod accepts new hexadecimal floating-point format from ISO C 9X.
1349 * printf has two new specifiers %a and %A to print hexadecimal flaoting-point
1350 numbers.
1352 * scanf recognizes the %a and %A format for scanning floating point numbers.
1354 * the new headers <stdint.h> and <inttypes.h> from ISO C 9X provides
1355 information and interfaces for the available integer types.
1357 * about 130 new math functions were added to implement the ISO C9x math
1358 library.
1360 * the new header <complex.h> contains definitions of the complex math
1361 functions from ISO C 9X.
1363 * the new header <tgmath.h> defines generic macros to use complex or
1364 real valued functions.
1366 * Thorsten Kukuk provided an implementation for NIS+, securelevel 0, 1 and 2.
1368 * Andreas Jaeger provided a test suite for the math library.
1370 * Mark Kettenis implemented the utmpx interface and an utmp daemon.
1372 * Ulrich Drepper added character set conversion functions (iconv).
1374 * Optimized string functions have been added.
1376 * The localedata addon is now part of glibc.
1378 * An implementation of profiling shared libraries was added by Ulrich Drepper.
1380 * Thorsten Kukuk and Ulrich Drepper provided an implementation for a caching
1381 daemon for NSS (nscd).
1383 Missing a better place here are some numbers on improvements. Under
1384 Linux 2.1.125 un-tar-ing the kernel sources takes
1386 user system wall
1388 using local files 12.19s 6.88s 22.91s
1390 using NIS 13.92s 8.91s 26.34s
1392 using NIS & nscd 10.37s 7.34s 25.30s
1394 using NIS+ 27.57s 30.37s 640.46s
1396 using NIS+ & nscd 10.25s 7.83s 26.51s
1398 using NIS & old nscd [1] 13.83s 8.32s 29.60s
1400 Keep in mind that non-namelookup related operations dominate above times.
1401 It was just a common complain that using NIS+ unpacking the kernel is
1402 horribly slow.
1404 [1] The old nscd implementation is not available anymore since it was
1405 distributed with glibc up to version 2.0.98 and thus is now replaced.
1407 * Tim Waugh provided an implementation of the POSIX.2 wordexp function family.
1409 * Mark Kettenis provided a Hesiod NSS module.
1411 * The ELF dynamic loader knows how to process dynamic string tokens ($ORIGIN
1412 and $PLATFORM) in RPATHs and similar strings (Ulrich Drepper).
1414 * rcmd can now handle netgroups (Dick Streefland).
1416 * A port to the ARM was contributed by Phil Blundell, Pat Beirne and Scott
1417 Bambrough.
1419 * Support for the IPv6 protocol has been added to the socket API, as per the
1420 latest draft standards.
1422 * Support for Linux 2.2 has been added.
1424 * Interface changes relative to the latest 2.0.x release:
1425 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1426 addseverity NEW: Unix98
1427 alphasort64 NEW: LFS
1428 argp_err_exit_status NEW: argp, GNU ext
1429 argp_error NEW: argp, GNU ext
1430 argp_failure NEW: argp, GNU ext
1431 argp_help NEW: argp, GNU ext
1432 argp_parse NEW: argp, GNU ext
1433 argp_program_bug_address NEW: argp, GNU ext
1434 argp_program_version NEW: argp, GNU ext
1435 argp_program_version_hook NEW: argp, GNU ext
1436 argp_state_help NEW: argp, GNU ext
1437 argp_usage NEW: argp, GNU ext
1438 authdes_create NEW: Secure RPC
1439 authdes_getucred NEW: Secure RPC
1440 authdes_pk_create NEW: Secure RPC
1441 backtrace NEW: GNU ext.
1442 backtrace_symbols NEW: GNU ext.
1443 backtrace_symbols_fd NEW: GNU ext.
1444 cacos NEW: ISO C 9x
1445 cacosf NEW: ISO C 9x
1446 cacosh NEW: ISO C 9x
1447 cacoshf NEW: ISO C 9x
1448 cacoshl NEW: ISO C 9x
1449 cacosl NEW: ISO C 9x
1450 capget NEW: kernel
1451 capset NEW: kernel
1452 carg NEW: ISO C 9x
1453 cargf NEW: ISO C 9x
1454 cargl NEW: ISO C 9x
1455 casin NEW: ISO C 9x
1456 casinf NEW: ISO C 9x
1457 casinh NEW: ISO C 9x
1458 casinhf NEW: ISO C 9x
1459 casinhl NEW: ISO C 9x
1460 casinl NEW: ISO C 9x
1461 catan NEW: ISO C 9x
1462 catanf NEW: ISO C 9x
1463 catanh NEW: ISO C 9x
1464 catanhf NEW: ISO C 9x
1465 catanhl NEW: ISO C 9x
1466 catanl NEW: ISO C 9x
1467 cbc_crypt NEW: Secure RPC
1468 ccos NEW: ISO C 9x
1469 ccosf NEW: ISO C 9x
1470 ccosh NEW: ISO C 9x
1471 ccoshf NEW: ISO C 9x
1472 ccoshl NEW: ISO C 9x
1473 ccosl NEW: ISO C 9x
1474 cexp NEW: ISO C 9x
1475 cexpf NEW: ISO C 9x
1476 cexpl NEW: ISO C 9x
1477 cimag NEW: ISO C 9x
1478 cimagf NEW: ISO C 9x
1479 cimagl NEW: ISO C 9x
1480 clearerr_locked REMOVED
1481 clntunix_create NEW: sunrpc ext
1482 clog NEW: ISO C 9x
1483 clog10 NEW: ISO C 9x
1484 clog10f NEW: ISO C 9x
1485 clog10l NEW: ISO C 9x
1486 clogf NEW: ISO C 9x
1487 clogl NEW: ISO C 9x
1488 conj NEW: ISO C 9x
1489 conjf NEW: ISO C 9x
1490 conjl NEW: ISO C 9x
1491 cpow NEW: ISO C 9x
1492 cpowf NEW: ISO C 9x
1493 cpowl NEW: ISO C 9x
1494 cproj NEW: ISO C 9x
1495 cprojf NEW: ISO C 9x
1496 cprojl NEW: ISO C 9x
1497 creal NEW: ISO C 9x
1498 crealf NEW: ISO C 9x
1499 creall NEW: ISO C 9x
1500 creat64 NEW: LFS
1501 csin NEW: ISO C 9x
1502 csinf NEW: ISO C 9x
1503 csinh NEW: ISO C 9x
1504 csinhf NEW: ISO C 9x
1505 csinhl NEW: ISO C 9x
1506 csinl NEW: ISO C 9x
1507 csqrt NEW: ISO C 9x
1508 csqrtf NEW: ISO C 9x
1509 csqrtl NEW: ISO C 9x
1510 ctan NEW: ISO C 9x
1511 ctanf NEW: ISO C 9x
1512 ctanh NEW: ISO C 9x
1513 ctanhf NEW: ISO C 9x
1514 ctanhl NEW: ISO C 9x
1515 ctanl NEW: ISO C 9x
1516 des_setparity NEW: Secure RPC
1517 ecb_crypt NEW: Secure RPC
1518 endutxent NEW: Unix98
1519 exp10 NEW: ISO C 9x
1520 exp10f NEW: ISO C 9x
1521 exp10l NEW: ISO C 9x
1522 exp2 NEW: ISO C 9x
1523 exp2f NEW: ISO C 9x
1524 exp2l NEW: ISO C 9x
1525 fattach NEW: STREAMS
1526 fdetach NEW: STREAMS
1527 fdim NEW: ISO C 9x
1528 fdimf NEW: ISO C 9x
1529 fdiml NEW: ISO C 9x
1530 feclearexcept NEW: ISO C 9x
1531 fegetenv NEW: ISO C 9x
1532 fegetexceptflag NEW: ISO C 9x
1533 fegetround NEW: ISO C 9x
1534 feholdexcept NEW: ISO C 9x
1535 feof_locked REMOVED
1536 feraiseexcept NEW: ISO C 9x
1537 ferror_locked REMOVED
1538 fesetenv NEW: ISO C 9x
1539 fesetexceptflag NEW: ISO C 9x
1540 fesetround NEW: ISO C 9x
1541 fetestexcept NEW: ISO C 9x
1542 feupdateenv NEW: ISO C 9x
1543 fflush_locked REMOVED
1544 ffsl NEW: GNU ext.
1545 ffsll NEW: GNU ext.
1546 fgetpos64 NEW: LFS
1547 fgets_unlocked NEW: GNU ext.
1548 fileno_locked REMOVED
1549 fma NEW: ISO C 9x
1550 fmaf NEW: ISO C 9x
1551 fmal NEW: ISO C 9x
1552 fmax NEW: ISO C 9x
1553 fmaxf NEW: ISO C 9x
1554 fmaxl NEW: ISO C 9x
1555 fmin NEW: ISO C 9x
1556 fminf NEW: ISO C 9x
1557 fminl NEW: ISO C 9x
1558 fmtmsg NEW: Unix98
1559 fopen64 NEW: LFS
1560 fputc_locked REMOVED
1561 fputs_unlocked NEW: GNU ext.
1562 fread_unlocked NEW: GNU ext.
1563 freopen64 NEW: LFS
1564 fseeko NEW: Unix98
1565 fsetpos64 NEW: LFS
1566 fstatfs64 NEW: LFS
1567 fstatvfs NEW: Unix98
1568 fstatvfs64 NEW: LFS
1569 ftello NEW: Unix98
1570 ftello64 NEW: LFS
1571 ftruncate64 NEW: LFS
1572 ftw64 NEW: LFS
1573 fwrite_unlocked NEW: GNU ext.
1574 gai_strerror NEW: IPv6
1575 gamma_r REMOVED
1576 gammaf_r REMOVED
1577 gammal_r REMOVED
1578 getchar_locked REMOVED
1579 getdate NEW: Unix98
1580 getdate_err NEW: Unix98
1581 getdate_r NEW: GNU ext.
1582 getmsg NEW: STREAMS
1583 getnameinfo NEW: IPv6
1584 getnetname NEW: Secure RPC
1585 getpmsg NEW: STREAMS
1586 getpt NEW: Unix98 PTY
1587 getrlimit64 NEW: LFS
1588 getutxent NEW: Unix98
1589 getutxid NEW: Unix98
1590 getutxline NEW: Unix98
1591 glob64 NEW: GNU ext.
1592 globfree64 NEW: GNU ext.
1593 gnu_get_libc_release NEW: GNU ext.
1594 gnu_get_libc_version NEW: GNU ext.
1595 grantpt NEW: Unix98 PTY
1596 host2netname NEW: Secure RPC
1597 iconv NEW: iconv
1598 iconv_close NEW: iconv
1599 iconv_open NEW: iconv
1600 if_freenameindex NEW: IPv6
1601 if_indextoname NEW: IPv6
1602 if_nameindex NEW: IPv6
1603 if_nametoindex NEW: IPv6
1604 in6addr_any NEW: IPv6
1605 in6addr_loopback NEW: IPv6
1606 inet6_isipv4mapped NEW: IPv6
1607 isastream NEW: STREAMS
1608 iswblank NEW: GNU ext.
1609 key_decryptsession NEW: Secure RPC
1610 key_decryptsession_pk NEW: Secure RPC
1611 key_encryptsession NEW: Secure RPC
1612 key_encryptsession_pk NEW: Secure RPC
1613 key_gendes NEW: Secure RPC
1614 key_get_conv NEW: Secure RPC
1615 key_secretkey_is_set NEW: Secure RPC
1616 key_setnet NEW: Secure RPC
1617 key_setsecret NEW: Secure RPC
1618 llrint NEW: ISO C 9x
1619 llrintf NEW: ISO C 9x
1620 llrintl NEW: ISO C 9x
1621 llround NEW: ISO C 9x
1622 llroundf NEW: ISO C 9x
1623 llroundl NEW: ISO C 9x
1624 log2 NEW: ISO C 9x
1625 log2f NEW: ISO C 9x
1626 log2l NEW: ISO C 9x
1627 lrint NEW: ISO C 9x
1628 lrintf NEW: ISO C 9x
1629 lrintl NEW: ISO C 9x
1630 lround NEW: ISO C 9x
1631 lroundf NEW: ISO C 9x
1632 lroundl NEW: ISO C 9x
1633 lseek64 NEW: LFS
1634 makecontext NEW: Unix98
1635 mempcpy NEW: GNU ext.
1636 mmap64 NEW: LFS
1637 moncontrol REMOVED
1638 modify_ldt NEW: kernel
1639 nan NEW: ISO C 9x
1640 nanf NEW: ISO C 9x
1641 nanl NEW: ISO C 9x
1642 nearbyint NEW: ISO C 9x
1643 nearbyintf NEW: ISO C 9x
1644 nearbyintl NEW: ISO C 9x
1645 netname2host NEW: Secure RPC
1646 netname2user NEW: Secure RPC
1647 nexttoward NEW: ISO C 9x
1648 nexttowardf NEW: ISO C 9x
1649 nexttowardl NEW: ISO C 9x
1650 nftw NEW: Unix98
1651 nftw64 NEW: LFS
1652 open64 NEW: LFS
1653 passwd2des NEW: Secure RPC
1654 pow10 NEW: GNU ext.
1655 pow10f NEW: GNU ext.
1656 pow10l NEW: GNU ext.
1657 pread NEW: Unix98
1658 pread64 NEW: LFS
1659 printf_size NEW: GNU ext.
1660 printf_size_info NEW: GNU ext.
1661 profil_counter REMOVED
1662 pthread_mutexattr_getkind_np REPLACED
1663 pthread_mutexattr_setkind_np REPLACED
1664 ptsname NEW: Unix98 PTY
1665 ptsname_r NEW: Unix98 PTY
1666 putc_locked REMOVED
1667 putchar_locked REMOVED
1668 putgrent NEW: GNU ext.
1669 putmsg NEW: STREAMS
1670 putpmsg NEW: STREAMS
1671 pututxline NEW: Unix98
1672 pwrite NEW: Unix98
1673 pwrite64 NEW: LFS
1674 readdir64 NEW: LFS
1675 readdir64_r NEW: LFS
1676 remquo NEW: ISO C 9x
1677 remquof NEW: ISO C 9x
1678 remquol NEW: ISO C 9x
1679 round NEW: ISO C 9x
1680 roundf NEW: ISO C 9x
1681 roundl NEW: ISO C 9x
1682 rtime NEW: GNU ext.
1683 scalbln NEW: ISO C 9x
1684 scalblnf NEW: ISO C 9x
1685 scalblnl NEW: ISO C 9x
1686 scandir64 NEW: LFS
1687 sendfile NEW: kernel
1688 setcontext NEW: Unix98
1689 setrlimit64 NEW: LFS
1690 setutxent NEW: Unix98
1691 sighold NEW: Unix98
1692 sigignore NEW: Unix98
1693 sigqueue NEW: POSIX.1b
1694 sigrelse NEW: Unix98
1695 sigset NEW: POSIX.1b
1696 sigtimedwait NEW: POSIX.1b
1697 sigwaitinfo NEW: POSIX.1b
1698 sincos NEW: GNU ext.
1699 sincosf NEW: GNU ext.
1700 sincosl NEW: GNU ext.
1701 statfs64 NEW: LFS
1702 statvfs NEW: Unix98
1703 statvfs64 NEW: LFS
1704 strcasestr NEW: GNU ext.
1705 strtoimax NEW: ISO C 9x
1706 strtoumax NEW: ISO C 9x
1707 strverscmp NEW: GNU ext.
1708 svcauthdes_stats NEW: Secure RPC
1709 svcunix_create NEW: sunrpc etx
1710 svcunixfd_create NEW: sunrpc ext
1711 swapcontext NEW: Unix98
1712 tcgetsid NEW: Unix98 PTY
1713 tdestroy NEW: GNU ext.
1714 tgamma NEW: ISO C 9x
1715 tgammaf NEW: ISO C 9x
1716 tgammal NEW: ISO C 9x
1717 tmpfile64 NEW: LFS
1718 trunc NEW: ISO C 9x
1719 truncate64 NEW: LFS
1720 truncf NEW: ISO C 9x
1721 truncl NEW: ISO C 9x
1722 umount2 NEW: kernel
1723 unlockpt NEW: Unix98 PTY
1724 updwtmpx NEW: Unix98
1725 user2netname NEW: Secure RPC
1726 utmpxname NEW: Unix98
1727 versionsort NEW: GNU ext.
1728 versionsort64 NEW: GNU ext.
1729 waitid NEW: Unix98
1730 wcscasecmp NEW: GNU ext.
1731 wcsncasecmp NEW: GNU ext.
1732 wcsnlen NEW: GNU ext.
1733 wcstoimax NEW: ISO C 9x
1734 wcstoll NEW: ISO C 9x
1735 wcstoull NEW: ISO C 9x
1736 wcstoumax NEW: ISO C 9x
1737 wcswcs NEW: Unix98
1738 wordexp NEW: POSIX.2
1739 wordfree NEW: POSIX.2
1740 write_profiling REMOVED
1741 xdecrypt NEW: Secure RPC
1742 xdr_authdes_cred NEW: Secure RPC
1743 xdr_authdes_verf NEW: Secure RPC
1744 xdr_cryptkeyarg NEW: Secure RPC
1745 xdr_cryptkeyarg2 NEW: Secure RPC
1746 xdr_cryptkeyres NEW: Secure RPC
1747 xdr_getcredres NEW: Secure RPC
1748 xdr_key_netstarg NEW: Secure RPC
1749 xdr_key_netstres NEW: Secure RPC
1750 xdr_keybuf NEW: Secure RPC
1751 xdr_keystatus NEW: Secure RPC
1752 xdr_netnamestr NEW: Secure RPC
1753 xdr_sizeof NEW: Secure RPC
1754 xdr_unixcred NEW: sunrpc ext
1755 xencrypt NEW: Secure RPC
1756 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1757 \f
1758 Version 2.0.6
1760 * more bug fixes
1762 \f
1763 Version 2.0.5
1765 * more bug fixes
1767 * inet_ntoa is thread-safe
1769 * updwtmp is moved from libutil to libc
1771 * rewrite of cbrt function
1773 * update of timezone data
1774 \f
1775 Version 2.0.4
1777 * more bug fixes
1778 \f
1779 Version 2.0.3
1781 * more bug fixes
1782 \f
1783 Version 2.0.2
1785 * more bug fixes
1787 * add atoll function
1789 * fix complex problems in Berkeley DB code
1791 * fix math functions
1792 \f
1793 Version 2.0.1
1795 * fixed lots of header problems (especially Linux/GNU specific)
1797 * dynamic loader preserves all registers
1799 * Roland McGrath provided support for handling of auxiliary objects in
1800 the ELF dynamic loader.
1802 * support for parallel builds is improved
1803 \f
1804 Version 2.0
1806 * GNU extensions are no longer declared by default. To enable them you
1807 must define the macro `_GNU_SOURCE' in your program or compile with
1808 `-D_GNU_SOURCE'.
1810 * The library has changed from using GNU ld symbol aliases to using weak
1811 symbols where available. The ELF object file format supports weak
1812 symbols; GNU ld also supports weak symbols in the a.out format. (There
1813 is also now support for other GNU ld extensions in ELF. Use the
1814 `--with-elf' option to configure to indicate you have ELF, and
1815 `--with-gnu-ld' if using GNU ld.) This change resulted in the deletion
1816 of many files which contained only symbol aliases, reducing the size of
1817 the source and the compiled library; many other files were renamed to
1818 less cryptic names previously occupied by the symbol alias files.
1819 There is a new header file <elf.h> for programs which operate on
1820 files in the ELF format.
1822 * Converted to Autoconf version 2, so `configure' has more options.
1823 Run `configure --help' to see the details.
1825 * The library can now be configured to build profiling, highly-optimized
1826 (but undebuggable), and/or shared libraries (ELF with GNU ld only). The
1827 `--enable-profile', `--enable-omitfp', and `--enable-shared' options to
1828 `configure' enable building these extra libraries. The shared library is
1829 built by default when using both ELF and GNU ld. When shared libraries
1830 are enabled, the new library `-ldl' is available for arbitrary run-time
1831 loading of shared objects; its interface is defined in <dlfcn.h>. The
1832 new header file <link.h> gives access to the internals of the run-time
1833 dynamic linker, `ld.so'. The shell script `ldd' is similar to the
1834 application of same name on other systems and it provides information
1835 about dynamically linked binaries.
1837 * The C library now provides the run-time support code for profiling
1838 executables compiled with `-pg'. Programs can control the profiling code
1839 through the interface in <sys/gmon.h>. The `gmon.out' files written by
1840 the GNU C library can be read only by GNU `gprof' (from GNU binutils);
1841 the support for this file format was contributed by David Mosberger-Tang.
1843 * The math code has been replaced with a math library based on fdlibm from
1844 Sun, and modified by JT Conklin and Ulrich Drepper with i387 support, by
1845 Ian Taylor with `float' functions and by Ulrich Drepper with `long double'
1846 functions. The math functions now reside in a separate library, so
1847 programs using them will need to use `-lm' their linking commands.
1849 * John C. Bowman contributed optimized ix87 assembler inline functions.
1851 * Ulrich Drepper has contributed support for an `/etc/nsswitch.conf'
1852 mechanism similar to that found in Solaris 2. This is now used for the
1853 group, passwd, hosts, networks, services, protocols, rpc, ethers,
1854 shadow, netgroup, publickey, and alias databases. The `nsswitch.conf'
1855 file controls what services are used for each individual database. This
1856 works by loading shared libraries with names specified in `nsswitch.conf',
1857 so service modules can be changed or added at any time without even
1858 relinking any program. Currently there are the file, db, and NIS based
1859 NSS services available.
1861 * The new functions `strtoq' and `strtouq' parse integer values from
1862 strings, like `strtol' and `strtoul', but they return `long long int' and
1863 `unsigned long long int' values, respectively (64-bit quantities).
1865 * The new functions `strtof' and `strtold' parse floating-point values from
1866 strings, like `strtod', but they return `float' and `long double' values,
1867 respectively (on some machines `double' and `long double' are the same).
1869 * Ulrich Drepper has contributed new implementations of the floating-point
1870 printing and reading code used in the `printf' family of functions and
1871 `strtod', `strtof', and `strtold'. These new functions are perfectly
1872 accurate, and much faster than the old ones.
1874 * The implementation of the POSIX locale model was completely rewritten by
1875 Ulrich Drepper. This includes the new programs `localedef' and `locale'
1876 to compile the POSIX locale definition.
1878 * The former dummy implementations of the strcoll and strxfrm function are
1879 now replaced by fully functional code contributed by Ulrich Drepper. The
1880 collation information comes from the POSIX locale definitions.
1882 * The new header <langinfo.h> defines an interface for accessing
1883 various locale-dependent data (using the locale chosen with `setlocale').
1885 * Ulrich Drepper has contributed a new suite of functions for operation on
1886 wide-character and multibyte-character strings, in <wchar.h>;
1887 and classification and case conversion of wide characters, in <wctype.h>.
1888 These new functions are conforming to the ISO C, Amendement 1 specification.
1890 * There is now a second implementation of the standard I/O library available.
1891 It comes from GNU libg++ as was written by Per Bothner, heavily modified
1892 by Hongjiu Lu and made thread safe by Ulrich Drepper.
1894 * You can now use positional parameter specifications in format strings
1895 for the `printf' and `scanf' families of functions. For example,
1896 `printf ("Number %2$d, Mr %1$s\n", "Jones", 6);'' prints
1897 ``Number 6, Mr Jones''. This is mainly useful when providing different
1898 format strings for different languages, whose grammars may dictate
1899 different orderings of the values being printed. To support this
1900 feature, the interface for `register_printf_handler' has changed; see
1901 the header file <printf.h> for details.
1903 * The `printf' and `scanf' families of functions now understand a new
1904 formatting flag for numeric conversions: the ' flag (e.g. %'d or %'f) says
1905 to group numbers as indicated by the locale; for `scanf' and friends, this
1906 says to accept as valid only a number with all the proper grouping
1907 separators in the right places. In the default "C" locale, numbers are
1908 not grouped; but locales for specific countries will define the usual
1909 conventions (i.e. separate thousands with `,' in the US locale).
1911 * The pgrp functions have been regularized, slightly incompatibly but much
1912 less confusingly. The core functions are now `getpgid' and `setpgid',
1913 which take arguments for the PID to operate on; the POSIX.1 `getpgrp' (no
1914 argument) and BSD `setpgrp' (identical to `setpgid') functions are
1915 provided for compatibility. There is no longer an incompatible `getpgrp'
1916 with an argument declared under _BSD_SOURCE; no BSD code uses it.
1918 * The new header file <fts.h> and suite of functions simplify programs that
1919 operate on directory trees. This code comes from 4.4 BSD.
1921 * The resolver code has been updated from the BIND 4.9.5-P1 release.
1922 Parts of the code were heavily modified by Ulrich Drepper to fit in the
1923 NSS scheme used in glibc.
1925 * There is a new malloc debugging hook `__memalign_hook'.
1927 * There are new typedefs `ushort' for `unsigned short int' and `uint' for
1928 `unsigned int' in <sys/types.h>. These are for compatibility only and
1929 their use is discouraged.
1931 * The `-lmcheck' library to enable standard malloc debugging hooks is now
1932 done differently, so that it works even without GNU ld.
1934 * New function `euidaccess' checks allowed access to a file like `access',
1935 but using the effective IDs instead of the real IDs.
1937 * The time zone data files have been updated for the latest and greatest
1938 local time conventions of the countries of the world.
1940 * The new function `dirfd' extracts the file descriptor used by a DIR stream;
1941 see <dirent.h>.
1943 * The new functions `ecvt', `fcvt', and `gcvt' provide an obsolete interface
1944 for formatting floating-point numbers. They are provided only for
1945 compatibility; new programs should use `sprintf' instead. There are
1946 also equivalent function for the `long double' floating-point type and
1947 all functions also exist in a reentrant form.
1949 * The new auxiliary library `-lutil' from 4.4 BSD contains various
1950 functions for maintaining the login-record files (primarily of use to
1951 system programs such as `login'), and convenient functions for
1952 allocating and initializing a pseudo-terminal (pty) device.
1954 * Ulrich Drepper has contributed new support for System V style
1955 shared memory and IPC on systems that support it.
1957 * Ulrich Drepper has contributed several miscellaneous new functions found
1958 in System V: The `hsearch' family of functions provide an effective
1959 implementation of hash tables; `a64l' and `l64a' provide a very simple
1960 binary to ASCII mapping; `drand48' and friends provide a 48-bit random
1961 number generator.
1963 * Ulrich Drepper has contributed new reentrant counterparts for the
1964 `random' and `hsearch' families of functions; `random_r', `hsearch_r', etc.
1966 * Ulrich Drepper has contributed new, highly-optimized versions of several
1967 string functions for the i486/Pentium family of processors.
1969 * Ulrich Drepper has updated the Linux-specific code, based largely
1970 on work done in Hongjiu Lu's version of GNU libc for Linux.
1971 The GNU library now supports Linux versions 2.0.10 and later,
1972 using the ELF object file format (i[3456]86-*-linux).
1974 * Andreas Schwab has ported the C library to Linux/m68k (m68k-*-linux).
1976 * David Mosberger-Tang and Richard Henderson have ported the C library
1977 to Linux/Alpha (alpha-*-linux). Richard Henderson contributed the
1978 dynamic linking support for ELF/Alpha.
1980 * Richard Henderson contributed several Alpha optimized assembler function
1981 for arithmetic and string handling.
1983 * Ulrich Drepper has contributed a new set of message catalog functions to
1984 support multiple languages using the <libintl.h> interface, for use with
1985 his new package GNU gettext. Translation volunteers have contributed
1986 catalogs of the library's messages in Spanish, German, and Korean.
1988 * For compatibility with XPG4, Ulrich Drepper has contributed the `gencat'
1989 program and the `catgets' function for reading the catalog files it
1990 creates. (The <libintl.h> interface is preferred; we include the
1991 <nl_types.h> interface using `catgets' only for source compatibility with
1992 programs already written to use it.)
1994 * New header file <values.h> gives SVID-compatible names for <limits.h>
1995 constants.
1997 * Various new macros, declarations, and small header files for compatibility
1998 with 4.4 BSD.
2000 * New function `group_member' is a convenient way to check if a process has
2001 a given effective group ID.
2003 * When using GCC 2.7 and later, the socket functions are now declared in a
2004 special way so that passing an argument of type `struct sockaddr_in *',
2005 `struct sockaddr_ns *', or `struct sockaddr_un *' instead of the generic
2006 `struct sockaddr *' type, does not generate a type-clash warning.
2008 * New function `error' declared in header file <error.h> is a convenient
2009 function for printing error messages and optionally exiting; this is the
2010 canonical function used in GNU programs. The new functions `err', `warn',
2011 and friends in header file <err.h> are the canonical 4.4 BSD interface for
2012 doing the same thing.
2014 * The <glob.h> interface has several new flags from 4.4 BSD that extend the
2015 POSIX.2 `glob' function to do ~ and {...} expansion.
2017 * New function `unsetenv' complements `setenv' for compatibility with 4.4 BSD.
2018 `clearenv' which is used in POSIX.9 is also available.
2020 * New function `getsid' returns session ID number on systems that support it.
2022 * We have incorporated the 4.4 BSD `db' library (version 1.85). New header
2023 files <db.h> and <mpool.h> provide a rich set of functions for several
2024 types of simple databases stored in memory and in files, and <ndbm.h> is
2025 an old `ndbm'-compatible interface using the `db' functions. Link with
2026 `-ldb' to get these functions.
2028 * New macro `strdupa' copies a string like `strdup', but uses local stack
2029 space from `alloca' instead of dynamic heap space from `malloc'.
2031 * New function `strnlen' is like `strlen' but searches only a given maximum
2032 number of characters for the null terminator. `stpncpy', `strndup' and
2033 `strndupa' are similar variants for the `stpcpy', `strdup' and `strdupa'
2034 function.
2036 * New function `statfs' in header <sys/statfs.h>.
2038 * The new <argz.h> and <envz.h> interfaces contributed by Miles Bader
2039 provide convenient functions for operating on blocks of null-terminated
2040 strings.
2042 * A new suite of functions in <utmp.h> handle all the details of reading
2043 and writing the utmp file.
2045 * An implementation of the NIS/YP(tm) based NSS service was contributed by
2046 Thorsten Kukuk.
2048 * Paul Eggert and Ulrich Drepper modified the `strftime' function to be
2049 completely POSIX compliant and also implemented the extended functionality
2050 to handle alternate digit representation and alternate era date formats.
2052 * Ulrich Drepper provided an implementation of the `strptime' function
2053 defined in XPG4.2 which transforms a string into a `struct tm' value.
2055 * Paul Eggert provided the tzselect shell script as part of the timezone
2056 code. The shell script makes it easy to select the correct timezone
2057 specification.
2059 * The implementation of the malloc family of functions is completely replaced
2060 by a new implementation by Doug Lea with many improvements by Wolfram Gloger.
2061 The implementation uses the mmap function (if available) and it is
2062 optimized for the use in multi threaded programs.
2064 * Ulrich Drepper contributed a MD5 "encryption" for the crypt family of
2065 functions. This new functionality is usable by specifying a special
2066 salt string and it is compatible with implementation on *BSD systems.
2068 * Lots of functions from the XPG4.2 standard were added by Ulrich Drepper:
2069 `getsubopt' to handle second level command line options, `bsd_signal'
2070 to access BSD style `signal' functionality, the obsolete `regexp' style
2071 expression matcher.
2073 * the `lchown' function is available on system which support this
2074 functionality.
2076 * The implementation of the shadow password handling function was contributed
2077 by Ulrich Drepper.
2079 * David Mosberger-Tang changed the SunRPC implementation to be 64bit safe.
2081 * POSIX.1g support was added. The <sys/select.h> header is available,
2082 `isfdtype' and `pselect' are implemented. Craig Metz contributed an
2083 implementation of `getaddrinfo'.
2084 \f
2085 Version 1.09
2087 * For cross-compilation you should now set `BUILD_CC' instead of `HOST_CC'.
2089 * New header file <fstab.h> and new functions `getfsspec', `getfsent' and
2090 friends, for parsing /etc/fstab. This code comes from 4.4 BSD.
2092 * The new function `daemon' from 4.4 BSD is useful for server programs that
2093 want to put themselves in the background.
2095 * Joel Sherrill has contributed support for several standalone boards that
2096 run without an operating system.
2098 * `printf', `scanf' and friends now accept a `q' type modifier for long
2099 long int as well as `ll'. Formats using these might be `%qu' or `%lld'.
2101 * All of the code taken from BSD (notably most of the math and networking
2102 routines) has been updated from the BSD 4.4-Lite release.
2104 * The resolver code has been updated from the BIND-4.9.3-BETA9 release.
2106 * The new functions `getdomainname' and `setdomainname' fetch or change the
2107 YP/NIS domain name. These are system calls which exist on systems which
2108 have YP (aka NIS).
2110 * The time zone data files have been updated for the latest international
2111 conventions.
2113 * The SunRPC programs `portmap' and `rpcinfo' are now installed in
2114 $(sbindir) (usually /usr/local/sbin) instead of $(bindir).
2115 \f
2116 Version 1.08
2118 * The C library now includes support for Sun RPC, from Sun's free
2119 RPCSRC-4.0 distribution. The `portmap', `rpcinfo', and `rpcgen' programs
2120 are included. (There is still no support for YP.)
2122 * Tom Quinn has contributed a port of the C library to SGI machines running
2123 Irix 4 (mips-sgi-irix4).
2125 * The new `lockf' function is a simplified interface to the locking
2126 facilities of `fcntl', included for compatibility.
2128 * New time functions `timegm', `timelocal', and `dysize' for compatibility.
2130 * New header file <sys/timeb.h> and new function `ftime' for compatibility.
2132 * New header files <poll.h> and <sys/poll.h> and new function `poll' for
2133 compatibility.
2135 * The error message printed by `assert' for a failed assertion now includes
2136 the name of the program (if using GNU ld) and the name of the calling
2137 function (with versions of GCC that support this).
2139 * The `psignal' function is now declared in <signal.h>, not <stdio.h>.
2141 * The library now includes the <sys/mman.h> header file and memory
2142 management functions `mmap', `munmap', `mprotect', `msync', and
2143 `madvise', on systems that support those facilities.
2145 * The interface for `mcheck' has changed slightly: the function called to
2146 abort the program when an allocation inconsistency is detected now takes
2147 an argument that indicates the type of failure. The new function
2148 `mprobe' lets you request a consistency check for a particular block at
2149 any time (checks are normally done only when you call `free' or `realloc'
2150 on a block).
2152 * It is now possible to easily cross-compile the C library, building on one
2153 system a library to run on another machine and/or operating system. All
2154 you need to do is set the variable `HOST_CC' in `configparms' to the
2155 native compiler for programs to run on the machine you are building on (a
2156 few generator programs are used on Unix systems); set `CC' to the
2157 cross-compiler.
2159 * The new function `fexecve' (only implemented on the GNU system) executes
2160 a program file given a file descriptor already open on the file.
2161 \f
2162 Version 1.07
2164 * Brendan Kehoe has contributed most of a port to the DEC Alpha
2165 running OSF/1 (alpha-dec-osf1). He says it is 75% complete.
2167 * You can set the variable `libprefix' in `configparms' to specify a prefix
2168 to be prepended to installed library files; this makes it easy to install
2169 the GNU C library to be linked as `-lgnuc' or whatever.
2171 * The new `stpncpy' is a cross between `stpcpy' and `strncpy': It
2172 copies a limited number of characters from a string, and returns the
2173 address of the last character written.
2175 * You no longer need to check for whether the installed `stddef.h' is
2176 compatible with the GNU C library. configure now checks for you.
2178 * You can now define a per-stream `fileno' function to convert the
2179 stream's cookie into an integral file descriptor.
2181 * ``malloc (0)'' no longer returns a null pointer. Instead, it
2182 allocates zero bytes of storage, and returns a unique pointer which
2183 you can pass to `realloc' or `free'. The behavior is undefined if
2184 you dereference this pointer.
2186 * The C library now runs on Sony NEWS m68k machines running either
2187 NewsOS 3 or NewsOS 4.
2189 * The new `syscall' function is a system-dependent primitive function
2190 for invoking system calls. It has the canonical behavior on Unix
2191 systems, including unreliable return values for some calls (such as
2192 `pipe', `fork' and `getppid').
2194 * The error code `EWOULDBLOCK' is now obsolete; it is always defined
2195 to `EAGAIN', which is the preferred name. On systems whose kernels
2196 use two distinct codes, the C library now translates EWOULDBLOCK to
2197 EAGAIN in every system call function.
2198 \f
2199 Version 1.06
2201 * The GNU C Library Reference Manual is now distributed with the library.
2202 `make dvi' will produce a DVI file of the printed manual.
2203 `make info' will produce Info files that you can read on line using C-h i
2204 in Emacs or the `info' program.
2205 Please send comments on the manual to bug-glibc-manual@gnu.org.
2207 * The library now supports SVR4 on i386s (i386-unknown-sysv4).
2209 * Brendan Kehoe has contributed a port to Sun SPARCs running Solaris 2.
2211 * Jason Merrill has contributed a port to the Sequent Symmetry running
2212 Dynix version 3 (i386-sequent-dynix).
2214 * The library has been ported to i386s running SCO 3.2.4 (also known as SCO
2215 ODT 2.0; i386-unknown-sco3.2.4) or SCO 3.2 (i386-unknown-sco3.2).
2217 * New function `memory_warnings' lets you arrange to get warnings when
2218 malloc is running out of memory to allocate, like Emacs gives you.
2220 * The C library now contains the relocating allocator used in Emacs 19 for
2221 its editing buffers. This allocator (ralloc) minimizes allocation
2222 overhead and fragmentation by moving allocated regions around whenever it
2223 needs to. You always refer to a ralloc'd region with a "handle" (a
2224 pointer to a pointer--an object of type `void **').
2226 * There is a new `printf' format: `%m' gives you the string corresponding
2227 to the error code in `errno'.
2229 * In `scanf' formats, you can now use `%as' or `%a[' to do the normal `%s'
2230 or `%[' conversion, but instead of filling in a fixed-sized buffer you
2231 pass, the `a' modifier says to fill in a `char **' you pass with a
2232 malloc'd string.
2234 * The `fnmatch' function supports the new flag bits `FNM_LEADING_DIR' and
2235 `FNM_CASEFOLD'. `FNM_LEADING_DIR' lets a pattern like `foo*' match a
2236 name like `foo/bar'. `FNM_CASEFOLD' says to ignore case in matching.
2238 * `mkstemp' is a traditional Unix function to atomically create and open a
2239 uniquely-named temporary file.
2240 \f
2241 Version 1.05
2243 * The standard location for the file that says what the local timezone is
2244 has changed again. It is now `/usr/local/etc/localtime' (or more
2245 precisely, `${prefix}/etc/localtime') rather than `/etc/localtime'.
2247 * The distribution no longer contains any files with names longer than 14
2248 characters.
2250 * `struct ttyent' has two new flag bits: TTY_TRUSTED and TTY_CONSOLE.
2251 These are set by the new `trusted' and `console' keywords in `/etc/ttys'.
2253 * New functions `ttyslot' and `syslog' from 4.4 BSD.
2254 \f
2255 Version 1.04
2257 * The configuration process has changed quite a bit. The `configure'
2258 script is now used just like the configuration scripts for other GNU
2259 packages. The `sysdeps' directory hierarchy is much rearranged.
2260 The file `INSTALL' explains the new scheme in detail.
2262 * The header files no longer need to be processed into ANSI C and
2263 traditional C versions. There is just one set of files to install, and
2264 it will work with ANSI or old C compilers (including `gcc -traditional').
2266 * Brendan Kehoe and Ian Lance Taylor have ported the library to the
2267 MIPS DECStation running Ultrix 4.
2269 * The Sun 4 startup code (crt0) can now properly load SunOS 4 shared libraries.
2270 Tom Quinn contributed the initial code. The GNU C library can NOT yet be
2271 made itself into a shared library.
2273 * Yet further improved support for the i386, running 4.3 BSD-like systems
2274 (such as Mach 3 with the Unix single-server), or System V.
2276 * New function `strncasecmp' to do case-insensitive string comparison
2277 with limited length.
2279 * New function `strsep' is a reentrant alternative to `strtok'.
2281 * New functions `scandir' and `alphasort' for searching directories.
2283 * New function `setenv' is a better interface to `putenv'.
2285 * Ian Lance Taylor has contributed an implementation of the SVID `ftw'
2286 function for traversing a directory tree.
2288 * The GNU obstack package is now also part of the C library.
2289 The new function `open_obstack_stream' creates a stdio stream that
2290 writes onto an obstack; `obstack_printf' and `obstack_vprintf' do
2291 formatted output directly to an obstack.
2293 * Miscellaneous new functions: reboot, nice, sigaltstack (4.4 BSD only),
2294 cfmakeraw, getusershell, getpass, swab, getttyent, seteuid, setegid.
2296 * `FNM_FILE_NAME' is another name for `FNM_PATHNAME', used with `fnmatch'.
2298 * The new functions `strfry' and `memfrob' do mysterious and wonderful
2299 things to your strings.
2301 * There are some new test programs: test-fseek, testmb, and testrand.
2303 * Some work has been done to begin porting the library to 4.4 BSD and Linux.
2304 These ports are not finished, but are a good starting place for really
2305 supporting those systems.
2307 * `/etc/localtime' is now the standard location for the file that says what
2308 the local timezone is, rather than `/usr/local/lib/zoneinfo/localtime'.
2309 This follows the general principle that `/etc' is the place for all local
2310 configuration files.
2312 * The C library header files now use `extern "C"' when used by the C++
2313 compiler, so the C library should now work with C++ code.
2315 * The header file <bstring.h> is gone. <string.h> now declares bcopy,
2316 bcmp, bzero, and ffs. (Update: nowadays these functions are declared
2317 in <strings.h>.)
2319 * Mike Haertel (of GNU e?grep and malloc fame) has written a new sorting
2320 function which uses the `merge sort' algorithm, and is said to be
2321 significantly faster than the old GNU `qsort' function. Merge sort is
2322 now the standard `qsort' function. The new algorithm can require a lot
2323 of temporary storage; so, the old sorting function is called when the
2324 required storage is not available.
2326 * The C library now includes Michael Glad's Ultra Fast Crypt, which
2327 provides the Unix `crypt' function, plus some other entry points.
2329 * The code and header files taken from 4.4 BSD have been updated with the
2330 latest files released from Berkeley.
2331 \f
2332 ----------------------------------------------------------------------
2333 Copyright information:
2335 Copyright (C) 1992-2013 Free Software Foundation, Inc.
2337 Permission is granted to anyone to make or distribute verbatim copies
2338 of this document as received, in any medium, provided that the
2339 copyright notice and this permission notice are preserved,
2340 thus giving the recipient permission to redistribute in turn.
2342 Permission is granted to distribute modified versions
2343 of this document, or of portions of it,
2344 under the above conditions, provided also that they
2345 carry prominent notices stating who last changed them.
2346 \f
2347 Local variables:
2348 version-control: never
2349 fill-column: 76
2350 End: