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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 14155, 14699, 15427, 15522, 15531, 15532, 15736, 15749, 15797, 15844,
13 15867, 15886, 15887, 15890, 15897, 15905, 15909, 15921.
15 * CVE-2013-4237 The readdir_r function could write more than NAME_MAX bytes
16 to the d_name member of struct dirent, or omit the terminating NUL
17 character. (Bugzilla #14699).
19 * New locales: quz_PE.
21 * Add country_car field to LC_ADDRESS, many locales.
23 * Update iso-1427.def and related occurrences.
25 * The configure option --disable-versioning has been removed. Builds with
26 --disable-versioning had not worked for several years.
28 \f
29 Version 2.18
31 * The following bugs are resolved with this release:
33 2546, 2560, 5159, 6809, 7006, 10060, 10062, 10283, 10357, 10686, 11120,
34 11561, 12310, 12387, 12492, 12515, 12723, 13550, 13889, 13951, 13988,
35 14142, 14176, 14200, 14256, 14280, 14293, 14317, 14327, 14478, 14496,
36 14582, 14686, 14812, 14888, 14894, 14907, 14908, 14909, 14920, 14952,
37 14964, 14981, 14982, 14985, 14991, 14994, 14996, 15000, 15003, 15006,
38 15007, 15014, 15020, 15022, 15023, 15036, 15054, 15055, 15062, 15078,
39 15084, 15085, 15086, 15100, 15160, 15214, 15221, 15232, 15234, 15283,
40 15285, 15287, 15304, 15305, 15307, 15309, 15327, 15330, 15335, 15336,
41 15337, 15339, 15342, 15346, 15359, 15361, 15366, 15380, 15381, 15394,
42 15395, 15405, 15406, 15409, 15416, 15418, 15419, 15423, 15424, 15426,
43 15429, 15431, 15432, 15441, 15442, 15448, 15465, 15480, 15485, 15488,
44 15490, 15492, 15493, 15497, 15506, 15529, 15536, 15553, 15577, 15583,
45 15618, 15627, 15631, 15654, 15655, 15666, 15667, 15674, 15711, 15755,
46 15759.
48 * CVE-2013-2207 Incorrectly granting access to another user's pseudo-terminal
49 has been fixed by disabling the use of pt_chown (Bugzilla #15755).
50 Distributions can re-enable building and using pt_chown via the new configure
51 option `--enable-pt_chown'. Enabling the use of pt_chown carries with it
52 considerable security risks and should only be used if the distribution
53 understands and accepts the risks.
55 * CVE-2013-0242 Buffer overrun in regexp matcher has been fixed (Bugzilla
56 #15078).
58 * CVE-2013-1914 Stack overflow in getaddrinfo with many results has been
59 fixed (Bugzilla #15330).
61 * Add support for calling C++11 thread_local object destructors on thread
62 and program exit. This needs compiler support for offloading C++11
63 destructor calls to glibc.
65 * Improved worst case performance of libm functions with double inputs and
66 output.
68 * Support for priority inherited mutexes in pthread condition variables on
69 non-x86 architectures.
71 * Port to Xilinx MicroBlaze contributed by David Holsgrove.
73 * Optimized string functions for AArch64. Implemented by Marcus Shawcroft.
75 * Optimized string functions for ARM. Implemented by Will Newton and
76 Richard Henderson.
78 * Optimized libm functions for SPARC. Implemented by David S. Miller.
80 * Support for building more of ARM glibc as Thumb-2 code. Implemented by
81 Richard Henderson.
83 * Support for building most of MIPS glibc as MIPS16 code. Implemented by
84 Chung-Lin Tang, Maciej W. Rozycki and Maxim Kuvyrkov.
86 * Added a benchmark framework to track performance of functions in glibc.
88 * New <math.h> macro named issignaling to check for a signaling NaN (sNaN).
89 It is based on draft TS 18661 and currently enabled as a GNU extension.
91 * On Linux, the clock function now uses the clock_gettime system call
92 for improved precision, rather than old times system call.
94 * Added new API functions pthread_getattr_default_np and
95 pthread_setattr_default_np to get and set the default pthread
96 attributes of a process.
98 * Added support for TSX lock elision for pthread mutexes on i386 and x86-64.
99 This may improve lock scaling of existing programs on TSX capable systems.
100 When the --enable-lock-elision=yes parameter is specified at configure
101 time lock elision will be enabled by default for all PTHREAD_MUTEX_DEFAULT
102 mutexes.
104 * Support added for AT_HWCAP2 (to coincide with Linux kernel 3.10
105 availability). Implemented by Ryan S. Arnold.
107 * Support added for POWER8 platform. Implemented by Ryan S. Arnold.
108 \f
109 Version 2.17
111 * The following bugs are resolved with this release:
113 1349, 3439, 3479, 3665, 5044, 5246, 5298, 5400, 6530, 6677, 6778, 6808,
114 9685, 9914, 10014, 10038, 10114, 10191, 10631, 10873, 11438, 11607, 11638,
115 11741, 12140, 13013, 13412, 13542, 13601, 13603, 13604, 13629, 13679,
116 13696, 13698, 13717, 13741, 13759, 13761, 13763, 13881, 13939, 13950,
117 13952, 13966, 14042, 14047, 14090, 14150, 14151, 14152, 14154, 14157,
118 14166, 14173, 14195, 14197, 14237, 14246, 14251, 14252, 14283, 14298,
119 14303, 14307, 14328, 14331, 14336, 14337, 14347, 14349, 14368, 14376,
120 14417, 14447, 14459, 14476, 14477, 14501, 14505, 14510, 14516, 14518,
121 14519, 14530, 14532, 14538, 14543, 14544, 14545, 14557, 14562, 14568,
122 14576, 14579, 14583, 14587, 14595, 14602, 14610, 14621, 14638, 14645,
123 14648, 14652, 14660, 14661, 14669, 14672, 14683, 14694, 14716, 14719,
124 14743, 14767, 14783, 14784, 14785, 14793, 14796, 14797, 14801, 14803,
125 14805, 14807, 14811, 14815, 14821, 14822, 14824, 14828, 14831, 14833,
126 14835, 14838, 14856, 14863, 14865, 14866, 14868, 14869, 14871, 14872,
127 14879, 14889, 14893, 14898, 14914.
129 * Optimization of memcpy for MIPS.
131 * CVE-2011-4609 svc_run() produces high cpu usage when accept fails with
132 EMFILE has been fixed (Bugzilla #14889).
134 * The add-on ports collection is now distributed in the "ports" subdirectory
135 of the main GNU C Library distribution, rather than separately.
137 * Port to ARM AArch64 contributed by Linaro.
139 * Support for STT_GNU_IFUNC symbols added for s390 and s390x.
140 Optimized versions of memcpy, memset, and memcmp added for System z10 and
141 zEnterprise z196.
142 Implemented by Andreas Krebbel.
144 * The new function secure_getenv allows secure access to the environment,
145 returning NULL if running in a SUID/SGID process. This function replaces
146 the internal function __secure_getenv.
148 * SystemTap static probes have been added into the dynamic linker.
149 Implemented by Gary Benson.
151 * Optimizations of string functions strstr, strcasestr and memmem.
152 Implemented by Maxim Kuvyrkov.
154 * The minimum Linux kernel version that this version of the GNU C Library
155 can be used with is 2.6.16.
157 * Optimizations of string functions memchr, wcschr, wcscpy, and wcsrchr for
158 powerpc POWER7. Implemented by Will Schmidt.
160 * New configure option --disable-nscd builds the C library such that it
161 never attempts to contact the Name Service Caching Daemon (nscd).
162 New configure option --disable-build-nscd avoids building nscd itself;
163 this is the default if --disable-nscd is used.
165 * Improved support for cross-compilation, including cross-testing and
166 bootstrap builds without a previously built glibc.
168 * Several testsuite tests are now able to test multiple IFUNC variants of an
169 interface, rather than just testing the one that would be chooen by
170 default.
172 * New configure options --with-bugurl and --with-pkgversion, for
173 distributors to use to embed their bug-reporting and package version
174 information in --help and --version output.
176 * The ttyname and ttyname_r functions on Linux now fall back to searching for
177 the tty file descriptor in /dev/pts or /dev if /proc is not available. This
178 allows creation of chroots without the procfs mounted on /proc.
180 * The `crypt' function now fails if passed salt bytes that violate the
181 specification for those values. On Linux, the `crypt' function will
182 consult /proc/sys/crypto/fips_enabled to determine if "FIPS mode" is
183 enabled, and fail on encrypted strings using the MD5 or DES algorithm
184 when the mode is enabled.
186 * The `clock_*' suite of functions (declared in <time.h>) is now available
187 directly in the main C library. Previously it was necessary to link with
188 -lrt to use these functions. This change has the effect that a
189 single-threaded program that uses a function such as `clock_gettime' (and
190 is not linked with -lrt) will no longer implicitly load the pthreads
191 library at runtime and so will not suffer the overheads associated with
192 multi-thread support in other code such as the C++ runtime library.
194 * New locales: ayc_PE, doi_IN, ia_FR, mni_IN, nhn_MX, niu_NU, niu_NZ,
195 sat_IN, and szl_PL.
196 \f
197 Version 2.16
199 * The following bugs are resolved with this release:
201 174, 208, 350, 369, 411, 706, 766, 887, 2074, 2541, 2547, 2548, 2550,
202 2551, 2552, 2553, 2554, 2562, 2563, 2565, 2566, 2570, 2576, 2636, 2678,
203 3335, 3440, 3748, 3768, 3866, 3868, 3906, 3976, 3992, 4026, 4108, 4596,
204 4822, 5077, 5461, 5805, 5993, 6471, 6486, 6578, 6649, 6730, 6770, 6794,
205 6884, 6890, 6894, 6895, 6907, 6911, 6959, 7064, 9739, 9902, 10110, 10135,
206 10140, 10153, 10210, 10254, 10346, 10375, 10545, 10716, 10846, 11174,
207 11261, 11322, 11365, 11451, 11494, 11521, 11677, 11837, 11959, 12047,
208 12097, 12193, 12194, 12297, 12298, 12301, 12340, 12354, 12416, 12495,
209 13058, 13223, 13361, 13525, 13526, 13527, 13528, 13529, 13530, 13531,
210 13532, 13533, 13547, 13551, 13552, 13553, 13555, 13556, 13559, 13563,
211 13566, 13576, 13579, 13583, 13592, 13594, 13613, 13618, 13637, 13656,
212 13658, 13673, 13691, 13695, 13704, 13705, 13706, 13718, 13726, 13738,
213 13739, 13743, 13750, 13758, 13760, 13761, 13775, 13786, 13787, 13792,
214 13806, 13824, 13840, 13841, 13844, 13846, 13848, 13851, 13852, 13854,
215 13871, 13872, 13873, 13879, 13882, 13883, 13884, 13885, 13886, 13892,
216 13895, 13908, 13910, 13911, 13912, 13913, 13914, 13915, 13916, 13917,
217 13918, 13919, 13920, 13921, 13922, 13923, 13924, 13926, 13927, 13928,
218 13938, 13941, 13942, 13954, 13955, 13956, 13963, 13967, 13968, 13970,
219 13973, 13979, 13983, 13986, 13996, 14012, 14027, 14033, 14034, 14036,
220 14040, 14043, 14044, 14048, 14049, 14050, 14053, 14055, 14059, 14064,
221 14075, 14080, 14083, 14103, 14104, 14109, 14112, 14117, 14122, 14123,
222 14134, 14153, 14183, 14188, 14199, 14210, 14218, 14229, 14241, 14273,
223 14277, 14278.
225 * Support for the x32 ABI on x86-64 added. The x32 target is selected by
226 configuring glibc with:
227 BUILD_CC='gcc' CC='gcc -mx32' CXX='g++ -mx32'
228 Visit <http://sites.google.com/site/x32abi/> for more x32 ABI info.
229 Implemented by H.J. Lu.
231 * ISO C11 support:
233 + define static_assert
235 + do not declare gets
237 + declare at_quick_exit and quick_exit also for ISO C11
239 + aligned_alloc. NB: The code is deliberately allows the size parameter
240 to not be a multiple of the alignment. This is a moronic requirement
241 in the standard but it is only a requirement on the caller, not the
242 implementation.
244 + timespec_get added
246 + uchar.h support added
248 + CMPLX, CMPLXF, CMPLXL added
250 Implemented by Ulrich Drepper.
252 * Support for the IA-64 has been moved to ports.
254 * Remove support for anything but ELF binary format
256 * Checking versions of poll, ppoll added.
257 Implemented by Ulrich Drepper.
259 * More generic and 64-bit performance optimizations to math functions.
260 Implemented by Ulrich Drepper.
262 * New configure option --enable-obsolete-rpc makes the deprecated RPC
263 headers and functions available at compile time as they were before
264 version 2.14. This option will be removed at some time in the future
265 after the TI-RPC library becomes fully sufficient for the needs of
266 existing applications.
268 * Compatibility code for Linux kernel versions before 2.4 has been removed.
269 Note that glibc is not expected to work with any Linux kernel version
270 before 2.6.
272 * New header <sys/auxv.h> and function getauxval allowing easy access to
273 the AT_* key-value pairs passed from the Linux kernel. The header also
274 defines the HWCAP_* bits associated with the AT_HWCAP key.
276 * New locales: mag_IN
278 * New configure option --enable-systemtap builds SystemTap static probes
279 into libc for setjmp and longjmp and into libpthread for various operations.
280 So far the setjmp/longjmp probes and some of the libpthread probes are
281 provided only for i*86 and x86_64.
282 Implemented by Roland McGrath and Rayson Ho.
284 * Optimized expf for x86-32 and x86-64. Implemented by Liubov Dmitrieva.
286 * More optimized functions for PowerPC. Implemented by Adhemerval Zanella
287 and Will Schmidt.
289 * More optimized functions for SPARC. Implemented by David S. Miller.
291 * Improved support for cross-compilation, especially bootstrap builds
292 without a previously built glibc.
294 * Ports for the TILE-Gx and TILEPro families of processors. Contributed by
295 Chris Metcalf from Tilera.
297 * Support for the old ARM ABI has been removed from ports. Only the EABI is
298 now supported for ARM processors.
300 * The hard-float variant of the ARM EABI now uses /lib/ld-linux-armhf.so.3
301 as the name of the dynamic linker, to distinguish it from the
302 /lib/ld-linux.so.3 dynamic linker used for the base EABI.
304 * Support for CRIS has been removed from ports.
306 * A new class of installed header has been documented for low-level
307 platform-specific functionality. PowerPC added the first instance with a
308 function to provide time base register access. Contributed by Tulio
309 Magno Quites Machado Filho.
311 * ix86 configurations now install header files that are consistent with
312 what x86-64 configurations install. These same header files can be used
313 for -m32, -m64, or -mx32 builds.
314 Contributed by H.J. Lu.
316 * Math library bug fixes. A thorough audit of all open math library bugs was
317 conducted by Joseph Myers. Significant progress was made on many math
318 library bugs resulting in more accurate exceptions and function results.
319 Many thanks to all those that contributed including Andreas Jaeger for his
320 patch review and work on the x87 trigonometric instruction issues.
322 * Timezone data is no longer installed. Timezone-related binaries and scripts
323 will continue to be installed. Users should obtain their timezone data from
324 their distribution provider or from the tzdata package at
325 <ftp://munnari.oz.au/pub/>.
326 \f
327 Version 2.15
329 * The following bugs are resolved with this release:
331 6779, 6783, 9696, 10103, 10709, 11589, 11929, 12403, 12786, 12840, 12847,
332 12868, 12852, 12874, 12885, 12892, 12906, 12907, 12922, 12935, 12962,
333 13007, 13021, 13061, 13062, 13067, 13068, 13085, 13088, 13090, 13092,
334 13096, 13114, 13118, 13123, 13134, 13138, 13147, 13150, 13166, 13179,
335 13185, 13189, 13192, 13268, 13276, 13282, 13291, 13305, 13328, 13335,
336 13337, 13344, 13358, 13367, 13413, 13416, 13423, 13439, 13446, 13472,
337 13484, 13506, 13515, 13523, 13524, 13538, 13540
339 * New program pldd to list loaded object of a process
340 Implemented by Ulrich Drepper.
342 * Add nss_db support back to glibc. No more dependency on Berkeley db
343 and support for initgroups lookups.
344 Implemented by Ulrich Drepper.
346 * Optimized strcpy, strncpy, stpcpy, stpncpy for SSE2 and SSSE3 on x86-32.
347 Contributed by HJ Lu.
349 * Improved strcpy, strncpy, stpcpy, stpncpy for SSE2 and SSSE3 on x86-64.
350 Contributed by HJ Lu.
352 * Optimized strcat, strncat on x86-64 and optimized wcscmp, wcslen, strnlen
353 on x86-32 and x86-64.
354 Contributed by Liubov Dmitrieva.
356 * Optimized strchr and strrchr for SSE on x86-32.
357 Contributed by Liubov Dmitrieva.
359 * Optimized memchr, memrchr, rawmemchr, memcmp, wmemcmp, wcschr, wcscpy
360 for x86-64 and x86-32.
361 Contributed by Liubov Dmitrieva.
363 * New interfaces: scandirat, scandirat64
364 Implemented by Ulrich Drepper.
366 * Checking versions of FD_SET, FD_CLR, and FD_ISSET added.
367 Implemented by Ulrich Drepper.
369 * nscd now also caches the netgroup database.
370 Implemented by Ulrich Drepper.
372 * Integrate libm with gcc's -ffinite-math-only option.
373 Implemented by Ulrich Drepper.
375 * Lots of generic, 64-bit, and x86-64-specific performance optimizations
376 to math functions. Implemented by Ulrich Drepper.
378 * Optimized strcasecmp and strncasecmp for AVX on x86-64.
379 Implemented by Ulrich Drepper.
381 * New Linux interfaces: process_vm_readv, process_vm_writev
383 * Optimized strcasecmp and strncasecmp for SSSE3 and SSE4.2 on x86-32.
384 Implemented by Ulrich Drepper.
386 * Optimized nearbyint and strcasecmp for PPC.
387 Implemented by Adhemerval Zanella.
389 * New locales: bho_IN, unm_US, es_CU, ta_LK
390 \f
391 Version 2.14
393 * The following bugs are resolved with this release:
395 386, 6420, 7101, 9730, 9732, 9809, 10138, 10149, 10157, 11099, 11257,
396 11258, 11487, 11532, 11558, 11578, 11634, 11653, 11668, 11697, 11724,
397 11781, 11799, 11820, 11837, 11857, 11869, 11892, 11895, 11901, 11945,
398 11947, 11952, 11987, 12052, 12083, 12158, 12178, 12200, 12346, 12350,
399 12393, 12420, 12432, 12445, 12449, 12453, 12454, 12460, 12469, 12489,
400 12509, 12510, 12511, 12518, 12527, 12541, 12545, 12551, 12582, 12583,
401 12587, 12597, 12601, 12611, 12625, 12626, 12631, 12650, 12653, 12655,
402 12660, 12671, 12681, 12684, 12685, 12711, 12713, 12714, 12717, 12723,
403 12724, 12734, 12738, 12746, 12766, 12775, 12777, 12782, 12788, 12792,
404 12795, 12811, 12813, 12814, 12841
406 * The RPC implementation in libc is obsoleted. Old programs keep working
407 but new programs cannot be linked with the routines in libc anymore.
408 Programs in need of RPC functionality must be linked against TI-RPC.
409 The TI-RPC implementation is IPv6 enabled and there are other benefits.
411 Visible changes of this change include (obviously) the inability to link
412 programs using RPC functions without referencing the TI-RPC library and the
413 removal of the RPC headers from the glibc headers.
414 Implemented by Ulrich Drepper.
416 * New Linux interfaces: clock_adjtime, name_to_handle_at, open_by_handle_at,
417 syncfs, setns, sendmmsg
419 * New locales: os_RU, bem_ZA, en_ZA, ff_SN, sw_KE, sw_TZ, lb_LU, wae_CH,
420 yue_HK, lij_IT, mhr_RU
422 * New encodings: CP770, CP771, CP772, CP773, CP774
424 * New program sotruss to trace calls through PLTs
425 Implemented by Ulrich Drepper.
427 * The malloc hook implementation is marked deprecated and will be removed
428 from the default implementation in the next version. The design never
429 worked ever since the introduction of threads. Even programs which do
430 not create threads themselves can use multiple threads created internally.
431 \f
432 Version 2.13
434 * The following bugs are resolved with this release:
436 3268, 6812, 7066, 10085, 10484, 10563, 10851, 11149, 11155, 11577, 11611,
437 11640, 11655, 11701, 11840, 11856, 11883, 11903, 11904, 11968, 11979,
438 12005, 12037, 12067, 12077, 12078, 12092, 12093, 12107, 12108, 12113,
439 12140, 12159, 12167, 12191, 12194, 12201, 12204, 12205, 12207, 12348,
440 12378, 12394, 12397
442 * New Linux interfaces: prlimit, prlimit64, fanotify_init, fanotify_mark
444 * POWER7 optimizations: memset, memcmp, strncmp
446 * New optimized string functions for x86-64: strnlen (SSE2),
447 strcasecmp (SSE2, SSSE3, SSE4.2), strncasecmp (SSE2, SSSE3, SSE4.2)
448 Implemented by Ulrich Drepper.
449 \f
450 Version 2.12
452 * The following bugs are resolved with this release:
454 3662, 4457, 5553, 10162, 10401, 10414, 10554, 10824, 10864, 10915,
455 10918, 10936, 10939, 10958, 10968, 10969, 10972, 10992, 11000, 11001,
456 11007, 11010, 11027, 11039, 11040, 11041, 11043, 11046, 11056, 11070,
457 11093, 11115, 11125, 11126, 11127, 11134, 11141, 11149, 11183, 11184,
458 11185, 11186, 11187, 11188, 11189, 11190, 11191, 11192, 11193, 11194,
459 11200, 11230, 11235, 11242, 11254, 11258, 11271, 11272, 11276, 11279,
460 11287, 11292, 11319, 11332, 11333, 11387, 11389, 11390, 11394, 11397,
461 11410, 11438, 11449, 11470, 11471, 11520, 11537, 11538, 11571
463 * New interfaces: pthread_getname_np, pthread_setname_np
465 * New Linux interface: recvmmsg
467 * STT_GNU_IFUNC implemented for Sparc by David Miller.
469 * The dynamic linker now recognizes supported ABI versions from the
470 EI_ABIVERSION field in the ELF header.
471 Implemented by Ulrich Drepper.
473 * New NIS mode selector ADJUNCT_AS_SHADOW. The passwd.adjunct.byname table
474 will not be used to fill in password fields in the passwd.byname replies.
475 Instead it is used to synthesize the shadow.byname table, should it be
476 missing. This is a useful mode in some installations involving Solaris.
477 Implemented by Ulrich Drepper.
479 * New locales: kok_IN, sq_MK, cv_RU
480 \f
481 Version 2.11
483 * The following bugs are resolved with this release:
485 3270, 7094, 9924, 9986, 10011, 10085, 10107, 10159, 10162, 10166, 10183,
486 10195, 10196, 10200, 10203, 10207, 10211, 10213, 10217, 10221, 10229,
487 10262, 10286, 10312, 10315, 10319, 10349, 10360, 10391, 10402, 10416,
488 10418, 10422, 10425, 10446, 10448, 10452, 10540, 10553, 10560, 10564,
489 10609, 10643, 10692, 10713, 10717, 10730, 10731, 10742, 10780, 10784,
490 10789, 10817, 10823, 10840, 10847
492 * New interfaces: execvpe, pthread_sigqueue, mkstemps, mkstemps64, mkostemps,
493 mkostemps64
494 Implemented by Ulrich Drepper.
496 * Checking version of longjmp added that fails if an uninitialized stack
497 frame would be created. Implemented by Ulrich Drepper.
499 * STT_GNU_IFUNC is now supported in static executables.
500 Implemented by H.J. Lu.
502 * STT_GNU_IFUNC implemented for PPC by Alan Modra.
504 * New optimized string functions for x86-64: strstr, strcasestr, memcmp,
505 strcspn, strpbrk, strspn, strcpy, stpcpy, strncpy, strcmp (SSE2, SSE4.2),
506 strncmp (SSE2, SSE4.2), strchr (SSE4.2), strrchr (SSE4.2).
507 Contributed by H.J. Lu.
509 strlen, rawmemchr, strcmp (SSSE3), strncmp (SSSE3).
510 Implemented by Ulrich Drepper.
512 * New optimized string functions for x86: strlen, strcspn, strspn, strpbrk,
513 strstr, strcasestr.
514 Contributed by H.J. Lu.
516 * Support for fma instruction in AVX on x86-64.
517 Implemented by H.J. Lu and Ulrich Drepper.
519 * AVX support in x86-64 auditing support in ld.so.
520 Implemented by H.J. Lu.
522 * STB_GNU_UNIQUE support added.
523 Implemented by Ulrich Drepper.
525 * Implement second fallback mode for optimized DNS lookup for even more
526 broken environments. If two requests from the same port are not
527 handled correctly close the socket and open a new one before sending
528 the second request. The 'single-request-reopen' option in /etc/resolv.conf
529 can be used to select this mode right away, instead of rediscovering the
530 necessity is every process again.
531 Implemented by Ulrich Drepper.
533 * New resolver flag RES_USE_DNSSEC to enable use of verified lookup.
534 Implemented by Adam Tkac.
536 * Optimized iconv conversions for S390x.
537 Implemented by Andreas Krebbel.
539 * Using condvars with PI mutexes is now more efficient due to kernel
540 support for requeueing to PI futexes. NPTL support added for x86-64.
541 Implemented by Ulrich Drepper.
543 * New locales: ps_AF, my_MM
544 \f
545 Version 2.10
547 * The following bugs are resolved with this release:
549 697, 5381, 5807, 6411, 6545, 7040, 7058, 7067, 7080, 7083, 7095, 7098,
550 9677, 9694, 9697, 9701, 9704, 9705, 9706, 9720, 9726, 9730, 9733, 9736,
551 9741, 9750, 9753, 9759, 9781, 9791, 9793, 9823, 9833, 9844, 9880, 9881,
552 9891, 9893, 9895, 9913, 9916, 9920, 9948, 9955, 9957, 9963, 9985, 10052,
553 10069, 10086, 10087, 10090, 10092, 10093, 10100, 10118, 10128
555 * New interfaces: preadv, preadv64, pwritev, pwritev64, malloc_info
556 Implemented by Ulrich Drepper.
558 * New Linux interfaces: accept4, fallocate, fallocate64.
559 Implemented by Ulrich Drepper.
561 * Correct declarations of string function when used in C++ code. This
562 could lead to compile errors for invalid C++ code.
564 * XPG7/POSIX 2008 compilation environment. Many GNU-specific functions are
565 now in POSIX.
567 * New POSIX 2008 interface: psiginfo
568 Implemented by Ulrich Drepper.
570 * New ISO C++1x interfaces: quick_exit, at_quick_exit
571 Implemented by Ulrich Drepper.
573 * Support for selecting between multiple function definitions at runtime
574 using STT_GNU_IFUNC symbols. Implemented by Ulrich Drepper.
576 * The libcrypt library can now use the hash function implementations in
577 NSS. Implemented by Ulrich Drepper.
579 * The malloc implementation can be compiled to be less memory efficient
580 but higher performing in multi-threaded programs.
581 Implemented by Ulrich Drepper.
583 * New locales: nan_TW@latin, ks_IN
585 * Faster strlen, strchr, strchrnul, strrchr, memchr, and rawmemchr for x86-64.
586 Implemented by Ulrich Drepper.
588 * Extended printf hook support. It is possible to use user-defined types
589 and extend existing format specifiers.
590 Implemented by Ulrich Drepper.
592 * Handling for group shadow files has been added.
593 Implemented by Ulrich Drepper.
595 * DNS IPv4-IPv6 parallel lookup now deals better with broken DNS
596 servers (the case, e.g., for some people using the built-in DNS
597 server in ADSL modems/routers). There is a once-per-process timeout
598 in case of a broken server. To avoid it, users can run nscd or put
599 'options single-request' in /etc/resolv.conf.
600 Implemented by Ulrich Drepper.
601 \f
602 Version 2.9
604 * The following bugs are resolved with this release:
606 3406, 5209, 5210, 5381, 5794, 5814, 5911, 6428, 6438, 6442, 6447, 6461,
607 6472, 6505, 6544, 6589, 6612, 6634, 6653, 6654, 6657, 6698, 6712, 6713,
608 6719, 6723, 6724, 6740, 6763, 6771, 6790, 6791, 6817, 6824, 6839, 6843,
609 6845, 6856, 6857, 6860, 6867, 6875, 6919, 6920, 6942, 6947, 6955, 6966,
610 6968, 6974, 6980, 6995, 7008, 7009, 7029
612 * Unified lookup for getaddrinfo: IPv4 and IPv6 addresses are now looked
613 up at the same time. Implemented by Ulrich Drepper.
615 * TLS descriptors for LD and GD on x86 and x86-64.
616 Implemented by Alexandre Oliva.
618 * getaddrinfo now handles DCCP and UDPlite.
619 Implemented by Ulrich Drepper.
621 * New fixed-size conversion macros: htobe16, htole16, be16toh, le16toh,
622 htobe32, htole32, be32toh, le32toh, htobe64, htole64, be64toh, le64toh.
623 Implemented by Ulrich Drepper.
625 * New implementation of memmem, strstr, and strcasestr which is O(n).
626 Implemented by Eric Blake.
628 * New Linux interfaces: inotify_init1, dup3, epoll_create1, pipe2
630 * Implement "e" option for popen to open file descriptor with the
631 close-on-exec flag set. Implemented by Ulrich Drepper.
633 * Implement "b" mode for fmemopen. In this mode writes writes don't
634 implicitly add a NUL byte and seeks from the end of the buffer really
635 use the buffer end, not the string length as the basis.
636 Implemented by Ulrich Drepper.
638 * Many functions, exported and internal, now atomically set the close-on-exec
639 flag when run on a sufficiently new kernel. Implemented by Ulrich Drepper.
641 * Sorting rules for some Indian languages (Kannada, Gurumukhi, Telugu,
642 Sinhala)
643 Implemented by Pravin Satpute.
645 * New locales: sd_IN, sd_IN@devanagari, ks_IN@devanagari, ht_HT, en_AG, nl_AW.
646 \f
647 Version 2.8
649 * The following bugs are resolved with this release:
651 2549, 3112, 4314, 4407, 4997, 5012, 5040, 5112, 5204, 5208, 5209, 5220,
652 5222, 5224, 5225, 5237, 5238, 5240, 5245, 5277, 5346, 5375, 5378, 5382,
653 5424, 5427, 5428, 5435, 5436, 5439, 5441, 5442, 5443, 5451, 5452, 5454,
654 5455, 5463, 5464, 5465, 5475, 5477, 5478, 5520, 5541, 5545, 5553, 5600,
655 5602, 5607, 5614, 5627, 5628, 5736, 5737, 5741, 5753, 5760, 5762, 5768,
656 5774, 5777, 5778, 5779, 5786, 5790, 5818, 5854, 5857, 5903, 5939, 5979,
657 5983, 5995, 5998, 6004, 6007, 6020, 6021, 6024, 6040, 6042
659 * New locales: bo_CN, bo_IN, shs_CA.
661 * New encoding: HP-ROMAN9, HP-GREEK8, HP-THAI8, HP-TURKISH8.
663 * Sorting rules for some Indian languages (Devanagari and Gujarati).
664 Implemented by Pravin Satpute.
666 * IPV6 addresses in /etc/resolv.conf can now have a scope ID
668 * nscd caches now all timeouts for DNS entries
669 Implemented by Ulrich Drepper.
671 * nscd is more efficient and wakes up less often.
672 Implemented by Ulrich Drepper.
674 * More checking functions: asprintf, dprintf, obstack_printf, vasprintf,
675 vdprintf, and obstack_vprintf.
676 Implemented by Jakub Jelinek.
678 * Faster memset for x86-64.
679 Implemented by Harsha Jagasia and H.J. Lu.
681 * Faster memcpy on x86.
682 Implemented by Ulrich Drepper.
684 * ARG_MAX is not anymore constant on Linux. Use sysconf(_SC_ARG_MAX).
685 Implemented by Ulrich Drepper.
687 * Faster sqrt and sqrtf implemention for some PPC variants.
688 Implemented by Steven Munroe.
689 \f
690 Version 2.7
692 * The following bugs are resolved with this release:
694 4125, 4126, 4178, 4359, 4407, 4512, 4514, 4525, 4554, 4556, 4557, 4566,
695 4582, 4586, 4588, 4599, 4610, 4647, 4702, 4705, 4726, 4745, 4772, 4773,
696 4775, 4776, 4792, 4813, 4814, 4816, 4833, 4858, 4860, 4896, 4905, 4925,
697 4936, 4937, 4938, 4941, 4946, 4963, 4972, 5010, 5028, 5043, 5058, 5063,
698 5071, 5103, 5104, 5112, 5113, 5184, 5186
700 * More checking functions: fread, fread_unlocked, open*, mq_open.
701 Implemented by Jakub Jelinek and Ulrich Drepper.
703 * Extend fortification to C++. Implemented by Jakub Jelinek.
705 * Implement 'm' modifier for scanf. Add stricter C99/SUS compliance
706 by not recognizing 'a' as a modifier when those specs are requested.
707 Implemented by Jakub Jelinek.
709 * PPC optimizations to math and string functions.
710 Implemented by Steven Munroe.
712 * New interfaces: mkostemp, mkostemp64. Like mkstemp* but allow additional
713 options to be passed. Implemented by Ulrich Drepper.
715 * More CPU set manipulation functions. Implemented by Ulrich Drepper.
717 * New Linux interfaces: signalfd, eventfd, eventfd_read, and eventfd_write.
718 Implemented by Ulrich Drepper.
720 * Handle private futexes in the NPTL implementation.
721 Implemented by Jakub Jelinek and Ulrich Drepper.
723 * Add support for O_CLOEXEC. Implement in Hurd. Use throughout libc.
724 Implemented by Roland McGrath and Ulrich Drepper.
726 * Linux/x86-64 vDSO support. Implemented by Ulrich Drepper.
728 * SHA-256 and SHA-512 based password encryption.
729 Implemented by Ulrich Drepper.
731 * New locales: ber_DZ, ber_MA, en_NG, fil_PH, fur_IT, fy_DE, ha_NG, ig_NG,
732 ik_CA, iu_CA, li_BE, li_NL, nds_DE, nds_NL, pap_AN, sc_IT, tk_TM, ug_CN,
733 yo_NG.
735 + New iconv modules: MAC-CENTRALEUROPE, ISO-8859-9E, KOI8-RU.
736 Implemented by Ulrich Drepper.
737 \f
738 Version 2.6
740 * The following bugs are resolved with this release:
742 3156, 3213, 3285, 3291, 3306, 3313, 3320, 3322, 3325, 3326, 3334, 3348,
743 3352, 3363, 3369, 3426, 3427, 3429, 3451, 3458, 3465, 3480, 3483, 3493,
744 3514, 3515, 3559, 3632, 3664, 3673, 3674, 3745, 3747, 3818, 3840, 3842,
745 3851, 3855, 3884, 3885, 3902, 3905, 3919, 3944, 3954, 3955, 3957, 3991,
746 3995, 3996, 4024, 4040, 4069, 4070, 4074, 4076, 4096, 4101, 4102, 4114,
747 4130, 4131, 4181, 4276, 4306, 4342, 4344, 4349, 4364, 4368, 4381, 4392,
748 4403, 4405, 4406, 4411, 4438, 4439, 4455, 4456, 4465, 4512, 4514, 4586,
749 4702, 4858
751 * New Linux interfaces: epoll_pwait, sched_getcpu.
753 * New generic interfaces: strerror_l.
755 * nscd can now cache the services database. Implemented by Ulrich Drepper.
756 \f
757 Version 2.5
759 * The following bugs are resolved with this release:
761 39, 68, 192, 352, 388, 531, 935, 1006, 1201, 1203, 1386, 1782, 1783, 1784,
762 1785, 1786, 1787, 1951, 1974, 1996, 2072, 2098, 2125, 2134, 2158, 2182,
763 2349, 2376, 2386, 2389, 2415, 2418, 2420, 2423, 2450, 2451, 2466, 2472,
764 2473, 2477, 2498, 2499, 2501, 2502, 2505, 2507, 2508, 2509, 2517, 2526,
765 2569, 2571, 2592, 2611, 2625, 2632, 2644, 2662, 2680, 2683, 2684, 2693,
766 2695, 2703, 2734, 2751, 2764, 2766, 2775, 2792, 2821, 2823, 2832, 2841,
767 2843, 2883, 2892, 2908, 2914, 2926, 2961, 2978, 2980, 2987, 2997, 2998,
768 3013, 3018, 3034, 3040, 3044, 3123, 3124, 3137, 3138, 3143, 3155, 3189,
769 3225, 3251, 3252, 3253, 3273
771 * For Linux, the sorting of addresses returned by getaddrinfo now also
772 handles rules 3, 4, and 7 from RFC 3484. I.e., all rules are handled.
773 Implemented by Ulrich Drepper.
775 * Allow system admin to configure getaddrinfo with the /etc/gai.conf file.
776 Implemented by Ulrich Drepper.
778 * New Linux interfaces: splice, tee, sync_file_range, vmsplice.
780 * New iconv module for MIK. Contributed by Alexander Shopov.
782 * For sites with broken group and/or passwd database, the auto-propagate
783 option of nscd can prevent creating ID lookup entries from the results
784 of a name lookup and vice versa. This usually is no problem but some
785 site might have problems with the default behavior.
786 Implemented by Ulrich Drepper.
788 * Iterating over entire database in NIS can be slow. With the
789 SETENT_BATCH_READ option in /etc/default/nss a system admin can decide
790 to trade time for memory. The entire database will be read at once.
791 Implemented by Ulrich Drepper.
793 * The interfaces introduced in RFC 3542 have been implemented by
794 Ulrich Drepper.
796 * Support for the new ELF hash table format was added by Ulrich Drepper.
798 * Support for priority inheritance mutexes added by Jakub Jelinek and
799 Ulrich Drepper.
801 * Support for priority protected mutexes added by Jakub Jelinek.
803 * New locales: nr_ZA, pa_PK, ca_AD, ca_FR, ca_IT, el_CY, tr_CY, as_IN,
804 or_IN, csb_PL, fy_NL, sr_ME.
805 \f
806 Version 2.4
808 * More overflow detection functions.
810 * New iconv converters for IBM1025, IBM1122, IBM1137, IBM1153,
811 IBM1154, IBM1155, IBM1156, IBM1157, and IBM1158 contributed by Jiro Sekiba.
813 More converters for IBM803, IBM901, IBM902, IBM921, IBM1008, IBM1097,
814 IBM1112, IBM1123, IBM1130, IBM1140, IBM1141, IBM1142, IBM1143, IBM1144,
815 IBM1145, IBM1146, IBM1147, IBM1148, IBM1149, IBM1166, IBM1167, IBM4517,
816 IBM4899, IBM4909, IBM4971, IBM5347, IBM9030, IBM9066, IBM9448, IBM12712,
817 IBM16804, IBM1364, IBM1371, IBM1388, IBM1390, and IBM1399 contributed
818 by Masahide Washizawa.
820 * It is now possible to install audit libraries for the dynamic linker using
821 LD_AUDIT. Implemented by Ulrich Drepper.
823 * The LinuxThreads add-on, providing pthreads on Linux 2.4 kernels, is no
824 longer supported. The new NPTL implementation requires Linux 2.6 kernels.
825 For a libc and libpthread that works well on Linux 2.4 kernels, we
826 recommend using the stable 2.3 branch.
828 * The new function open_wmemstream acts like open_memstream,
829 but uses a wchar_t wide character buffer.
831 * The new function ppoll is an improved version of poll, similar to pselect.
833 * New interfaces: fdopendir, openat, fstatat, fchmodat, fchownat,
834 futimesat, faccessat, mkdirat, mkfifoat, mknodat,
835 renameat, unlinkat, linkat, symlinkat, readlinkat.
837 * New Linux kernel system calls: unshare,
838 inotify_init, inotify_add_watch, inotify_rm_watch.
840 * The euidaccess function is now also known by the alias eaccess,
841 for compatibility with some other systems.
843 * Timezone data updated to 2006b version.
844 \f
845 Version 2.3.6
847 * The following bugs are resolved with this release:
849 38, 253, 549, 622, 653, 721, 758, 851, 877, 915, 934, 955, 961,
850 1016, 1037, 1076, 1079, 1080, 1081, 1082, 1083, 1084, 1085, 1086,
851 1087, 1088, 1090, 1091, 1092, 1093, 1094, 1095, 1096, 1097, 1098,
852 1099, 1100, 1101, 1102, 1103, 1104, 1105, 1106, 1107, 1108, 1109,
853 1110, 1111, 1112, 1113, 1125, 1137, 1138, 1249, 1250, 1251, 1252,
854 1253, 1254, 1350, 1358, 1394, 1438, 1498, 1534
856 Visit <http://sources.redhat.com/bugzilla/> for the details of each bug.
858 * As of this release, GCC 4 can be used to compile the C Library.
860 * Timezone data updated to 2005m version.
861 \f
862 Version 2.3.5
864 * The following bugs are resolved with this release:
866 284, 592, 602, 626, 633, 640, 650, 661, 671, 681, 693, 700, 710, 719,
867 722, 723, 725, 726, 727, 728, 729, 730, 731, 732, 733, 734, 735, 736,
868 737, 738, 739, 740, 741, 742, 743, 744, 745, 765, 767, 768, 769, 776,
869 777, 787, 821, 822, 823, 825
871 Visit <http://sources.redhat.com/bugzilla/> for the details of each bug.
872 \f
873 Version 2.3.4
875 * Support for RFC 3678. Real implementations exist only for Linux so far.
876 Implemented by Ulrich Drepper.
878 * nscd can now cache entries persistently. Expiring entries are reloaded.
879 For speedups the cache can be shared in memory with client processes.
880 Implemented by Ulrich Drepper.
882 * nscd can now perform SELinux checks.
883 Implemented by Matthew Rickard <mjricka@epoch.ncsc.mil>.
885 * getaddrinfo queries are now cached. Canonical name lookup is performed
886 efficiently.
887 Implemented by Ulrich Drepper.
889 * The nothrow function attribute is used when headers are used by gcc when
890 compiling C code. This can avoid significant amounts of exception
891 handling data.
893 * The malloc functions perform more error checking and are stricter when
894 it comes to reacting on errors. The default action is to terminate
895 the process after showing an error message. Implemented by Ulrich Drepper.
897 * Reverse lookups of IPv6 addresses does not use bit string or .ip6.int
898 lookups anymore unless explicitly requested. Implemented by Ulrich Drepper.
900 * Namespaces in ld.so are implemented. DSOs can be loaded in separate
901 namespaces using the new function dlmopen(). This feature is of course,
902 like most other dynamic loading functionality, not available in statically
903 linked applications. Implemented by Ulrich Drepper.
905 * Low-overhead boundary checking variants of string and some stdio functions
906 were added. These are to be used in conjunction with a gcc patch by
907 Jakub Jelinek which adds calls to these functions if possible.
908 Implemented by Jakub Jelinek and Ulrich Drepper.
910 * Old code for several operating systems and machine architectures that
911 have not been in working condition in a long time have been removed from
912 the main source tree maintained by the GNU C Library's maintainers.
913 These files are now reside in the separate `ports' source module
914 that is usable as an add-on when building the library.
915 \f
916 Version 2.3.3
918 * New functions `dladdr1' and `dlinfo' in <dlfcn.h> provide more ways to
919 interrogate the dynamic linker, compatible with the Solaris interface.
921 * ELF thread-local storage support (TLS) now works on PowerPC and PowerPC64;
922 implemented by Paul Mackerras, Steven Munroe, and Roland McGrath.
924 * getifaddrs now uses the netlink interface on Linux to get its information.
925 Implemented by Thorsten Kukuk.
927 * getaddrinfo now implements AI_V4MAPPED, AI_ALL, and AI_ADDRCONF.
928 Implemented by Ulrich Drepper.
930 * support for non-executable stacks on x86 has been added. Changes mostly
931 by Roland McGrath.
933 * regex is now much faster for multibyte locales. Changes by Jakub Jelinek
934 and Ulrich Drepper.
936 * getaddrinfo now performs destination address selection according to
937 RFC 3484.
938 \f
939 Version 2.3.2
941 * Thread-safe interfaces for many functions that access locale data
942 were added in version 2.3, but these features were omitted from NEWS.
943 Many functions have variants with an `_l' suffix that take a `locale_t'
944 object as a parameter rather than consulting the current locale.
945 The new functions `newlocale', `duplocale', and `freelocale' in <locale.h>
946 create and maintain `locale_t' objects. Additionally, the new function
947 `uselocale' sets "the current locale" (as used by functions not so
948 parameterized) set for an individual thread. These features were added
949 in version 2.3, implemented by Ulrich Drepper and Roland McGrath.
951 * The functions getresuid, getresgid, setresuid, and setresgid, which
952 have long been available on Linux, are now declared in <unistd.h>
953 and are now also available on the Hurd.
955 * ELF thread-local storage support (TLS) now works on x86-64.
957 * The new dynamic string token $LIB is expanded in shared library names.
958 This normally expands to lib, but on some 64-bit platforms to lib64 instead.
960 * Aldy Hernandez contributed complete software floating point support for
961 PowerPC machines with no FPU.
963 * fexecve is implemented on Linux.
965 * The `btowc' function should work at least twice as fast due to
966 specialized callbacks in the iconv modules. Implemented by Bruno Haible.
968 * With approriate thread add-ons cancelable functions are now implemented
969 in libc.so as well. No need to call the function in libpthread. This
970 change allowed to finally disable the incorrect and expensive handling
971 of weak definition in ld.so.
973 * Yet more PLT entries in libc.so have been removed. We finally arrived
974 at the bare minimum. Startup times improved appropriately.
976 * Support for the new Linux/x86 system call interface was added. The
977 AT_SYSINFO auxiliary vector entry is recognized and handled.
978 \f
979 Version 2.3
981 * Masahide Washizawa contributed iconv modules for IBM1163 and IBM1164
982 charsets.
984 * iconv (the program and the interface) now accepts empty names (excluding
985 options like //TRANSLIT) to mean "use charset of current locale".
987 * localedef can now transliterate characters in strings which are not in
988 the provided charmap. The information from the input locale is used.
990 * Prelinking support was added for ELF targets. This requires additional
991 tools and recent versions of the GNU binutils. Contributed by Jakub Jelinek.
993 * Read-only stdio streams now use mmap to speed up operation by eliminating
994 copying and buffer underflows. To use add 'm' to the mode string of
995 the fopen/fdopen/freopen call. Implemented by Ulrich Drepper.
997 * The malloc functions were completely rewritten by Wolfram Gloger based
998 on Doug Lea's malloc-2.7.0.c.
1000 * Isamu Hasegawa contributed a completely new and POSIX-conformant
1001 implementation of regex.
1003 * Bruno Haible upgraded the iconv and locale implementation to support
1004 Unicode 3.2.
1006 * Contents of the LC_* and LANG environment variables in the CEN style are
1007 not recognized anymore. It never was used. Change by Ulrich Drepper.
1009 * The runtime (ld.so, libc, libpthread for Linux) now can handle the ELF
1010 thread-local storage (TLS) ABI on some platforms.
1011 Changes by Ulrich Drepper. SH support by Kaz Kojima.
1013 * Bruno Haible contributed iconv converters for ISO-2022-JP-3, SHIFT JIS-X0213,
1014 EUC-JISX0213, and TSCII.
1016 * New header <ifaddrs.h> with functions `getifaddrs' and `freeifaddrs':
1017 BSD-compatible interface for getting all network interface addresses.
1018 Implementation for IPv4 by Roland McGrath.
1020 * Loading of locale data is faster due to the introduction of a locale
1021 archive. Implemented by Roland McGrath and Ulrich Drepper.
1023 * Startup times are significantly reduced by not using exported functions
1024 inside the library itself. Changes by Jakub Jelinek, Roland McGrath,
1025 and Ulrich Drepper.
1027 * Steven Munroe contributed a port to PowerPC64/Linux.
1028 \f
1029 Version 2.2.6
1031 * The Hurd now uses the GNU libio implementation of stdio rather than the
1032 old GNU stdio implementation, and uses a new ABI (libc.so.0.3).
1034 * The Hurd on x86 now has the `ioperm' function and <sys/io.h> header file
1035 with the same behavior as the Linux system call of the same name.
1036 \f
1037 Version 2.2.5
1039 * Stephen Moshier implemented log2, log10, powl and cbrtl for the
1040 128-bit long double format.
1042 * Masahide Washizawa contributed iconv modules for IBM1132, IBM1133, IBM1160,
1043 IBM1161, and IBM1162 charsets.
1045 * Andreas Jaeger contributed a port to x86-64/Linux.
1047 * Peter Bruin contributed a port to PowerPC/Hurd.
1049 * libc functions using I/O streams now can handle wide-oriented streams
1050 as well.
1052 * optimizations in the dynamic linker. Binaries created by recent binutils
1053 versions start up quicker due to reduced time spent on relocations.
1055 * Support for use of gcc3 added by Jakub Jelinek and HJ Lu.
1056 \f
1057 Version 2.2.4
1059 * Stephen Moshier implemented cosh, expm1, log1p, acos, sinh, tanh,
1060 asinh, atanh, j0 for the 128-bit long double format.
1062 * Bruno Haible updated all the code handling Unicode in some form to
1063 support Unicode 3.1.
1065 * Speed of regex for single-byte locales is back to previous levels.
1066 Patch by Isamu Hasegawa.
1068 * Alpha, SPARC, and IA-64 now also using floating stacks.
1070 * Startup time of internationalized applications greatly improved through
1071 iconv cache. Use iconvconfig to generate the cache file.
1072 Contributed by Ulrich Drepper.
1074 * The IA-64 specific part of ld.so was rewritten to eliminate some pretty
1075 severe performance problems. Patch by David Mosberger.
1077 * The Hurd port got a lot more functionality like AIO, various stdio
1078 extensions, etc. Mainly done by Roland McGrath.
1080 * mtrace can now lookup symbols in shared libraries.
1081 \f
1082 Version 2.2.3
1084 * Intel's IA-64 math library is largely integrated. It provides fast and
1085 accurate implementatations for most basic and standard math functions
1086 in float, double, and long double format.
1088 * Stephen Moshier implemented j0, j1, jn, y0, y1, yn, lgamma, erf, erfc,
1089 and asin for the 96-bit long double format and asin, log, tan for the
1090 128-bit long double format.
1092 * The beginning of a last-bit accurate math library by IBM Haifa were added.
1093 The basic double functions exist today. Contributed by Abraham Ziv
1094 <ziv@il.ibm.com>, Moshe Olshansky <olshansk@il.ibm.com>, Ealan Henis
1095 <ealan@il.ibm.com>, and Anna Reitman <reitman@il.ibm.com>.
1097 * An asynchronous name lookup library was added. The interface is designed
1098 after POSIX AIO. The proposal was circulated beforehand to get comments.
1099 No negative ones came in. Implemented by Ulrich Drepper.
1101 * Port to S390/64bit contributed by Martin Schwidefsky
1102 <schwidefsky@de.ibm.com>.
1104 * David Mosberger <davidm@hpl.hp.com> implemented the setcontext family
1105 of functions for Linux/IA-64.
1107 * The RPC code is now thread safe. Threads can now use the same service
1108 of different services at the same time. Patch by Eric Norum
1109 <eric.norum@usask.ca> with some help by Ulrich Drepper.
1111 * Martin Schwidefsky <schwidefsky@de.ibm.com> implemented the setcontext
1112 family of functions for Linux/S390.
1114 * Ulrich Drepper <drepper@redhat.com> implemented the setcontext family
1115 of functions for Linux/x86.
1117 * Port to Linux/CRIS contributed by Axis Communications.
1118 \f
1119 Version 2.2.2
1121 * Lots of headers were cleaned up. Using the tool in the conform/ subdir
1122 we can now check for namespace violations and missing declarations. The
1123 result is that almost all headers are now Unix-compliant (as defined in
1124 the upcoming XPG6). The negative side is that some programs might need
1125 corrections, too, if they depend on the incorrect form of the headers in
1126 previous versions which defined too many symbols and included too many
1127 other headers.
1129 * regex now handles multibyte character sets correctly.
1130 Contributed by Isamu Hasegawa <isamu@yamato.ibm.com>.
1132 * iconv (the program) does now conform to the upcoming XPG6 and handles
1133 charmaps. Instead of the charset names the path of charmaps can be
1134 provided and the conversion happens based on this data.
1135 Contributed by Ulrich Drepper.
1137 * The locale program now provides detailed information about the installed
1138 locales. While
1140 locale -a
1142 only lists the names of the supported locales
1144 locale -a --verbose
1146 provides details such as country, language, and codeset name.
1147 Contributed by Ulrich Drepper.
1148 \f
1149 Version 2.2.1
1151 * The gencat program now parses the input file according to the charset
1152 selected by the LC_CTYPE category. This is important for stateful
1153 character sets. To make generating catalogs easier there is a way
1154 to overwrite the charset selected by the locale: before the first
1155 message or $ quote line the catalog can contain a line like
1157 $ codeset=ISO-8859-2
1159 to select the charset (ISO-8859-2 in this case).
1161 Implemented by Shinya Hanataka and Ulrich Drepper.
1163 * New codeset conversion modules: IBM-922 (Estonia PC codeset),
1164 IBM-1124 (Ukraine PC codeset), IBM-1129 (Vietnamese PC codeset).
1165 Contributed by Masahide Washizawa <washi@jp.ibm.com>.
1167 * Optimized string functions for Alpha ev6 and ev67 by Richard Henderson
1168 <rth@redhat.com> and Rick Gorton <rick.gorton@alpha-processor.com>.
1170 * The LANGUAGE environment variable is now ignored unless the locale is
1171 changed from the default "C" locale.
1173 * The usual bug fixes.
1174 \f
1175 Version 2.2
1177 * Greg McGary added runtime support for bounds checking using gcc's
1178 new -fbounded-pointers option. ix86 target is complete. PowerPC
1179 is in progress.
1181 * Thorsten Kukuk added secure mode support to nscd.
1183 * The Berkeley db libraries have been removed.
1185 Related, the nss_db module is now in a separate package since it
1186 obviously requires a database library being available.
1188 * Wide character I/O streams implemented by Ulrich Drepper.
1190 * Functions from the extended socket API added by Ulrich Drepper.
1192 * Functions feenableexcept and fedisableexcept to control the
1193 behaviour of individual exceptions have been added by Andreas Jaeger.
1195 * ldconfig program added by Andreas Jaeger and Jakub Jelinek.
1197 * The resolver code has been updated from bind 8.2.3-T5B which supports
1198 threads. The integration was done by Andreas Jaeger, Adam D. Bradley,
1199 and Mark Kettenis.
1201 This change could in some situations effect backward compatibility. Since
1202 now `_res' is a thread-local instead of a global variable, modifying it
1203 in one thread does not have any effect in other threads.
1205 The resolver library was also extended to allow IPv6 as the transport
1206 protocol for the requests. This work was done by Stig Venaas.
1208 * Compatibility code for K&R C compilers has been removed from the
1209 header files. A ISO C compiler is needed to use the library
1210 (conforming to either C89 or C99 standard).
1212 * Complete rewrite of the localedef program to support multibyte character
1213 sets. Implement handling of ISO 14651 and ISO 14652. Rewrite strcoll,
1214 strxfrm, wcscoll, and wcsxfrm functions. Make isw*() functions work.
1215 Implemented by Ulrich Drepper.
1217 Bruno Haible significantly improved the generation and use of the data
1218 structures for the wide character tables.
1220 * Plural handling in gettext implemented by Ulrich Drepper.
1222 * The utmp daemon has been removed.
1224 * The port to MIPS-Linux has been finished by Andreas Jaeger.
1226 * A port to Hitachi SH3 and SH4 has been contributed by Kazumoto Kojima
1227 and Yutaka Niibe.
1229 * POSIX clocks and timers implemented by Kaz Kylheku and Ulrich Drepper.
1231 * POSIX barriers implemented by Kaz Kylheku.
1233 * POSIX spawn function family implemented by Ulrich Drepper.
1235 * POSIX spinlocks are now available.
1237 * Timed wait functions for mutex, rwlock, and semaphores are implemented.
1239 * the configure option --enable-kernel=X.Y.Z allows to strip out
1240 compatibility for kernel versions before X.Y.Z. This is currently only
1241 implemented for Linux.
1243 * the sockaddr_in6 structure changed. The IPv6 working group added a new
1244 field sin6_scope_id. This means that all programs using IPv6 should be
1245 recompiled. Don't expect binary compatibility with previous glibc
1246 versions.
1248 * various conversion modules for IBM character sets contributed by
1249 Masahide Washizawa.
1251 * IA-64 port by Jes Sorensen and HJ Lu.
1252 \f
1253 Version 2.1.3
1255 * bug fixes
1257 \f
1258 Version 2.1.2
1260 * bug fixes
1262 \f
1263 Version 2.1.1
1265 * New ISO C 9x function _Exit, imaxabs, and imaxdiv are added.
1267 * New xdr functions are added; some rpc functions are now 64bit clean.
1269 * Fixed a number of bugs and memory leaks (especially in NIS+ code).
1271 * Fixed known incompatibilities with glibc 2.0.
1273 * New functions lock64, strchrnul, rawmemchr, getutmp and getutmpx.
1275 * Optimized a number of functions (especially the ELF dynamic loader).
1277 * Update timezone data files.
1279 * lots of charmaps corrections
1281 * some new locale definitions and charmaps
1283 \f
1284 Version 2.1
1286 * Richard Henderson corrected size of struct timeval on Linux/Alpha to
1287 conform to POSIX member type requirements. Symbol versions have been
1288 adjusted as needed within the library, and for direct use by applications,
1289 but there is potential for problems if third-party libraries use
1290 struct timeval as part of their interface. This does not present
1291 a problem for X and other "essential" system libraries.
1293 * An additional locale model to support C++ Standard Library locale
1294 model and probably more was implemented by Ulrich Drepper.
1296 * Eric Youngdale and Ulrich Drepper implemented versioning of objects on
1297 symbol level.
1299 * Miles Bader provided the `argp' function family to support hierachical
1300 command line argument parsing, layered on top of getopt.
1302 * strtod accepts new hexadecimal floating-point format from ISO C 9X.
1304 * printf has two new specifiers %a and %A to print hexadecimal flaoting-point
1305 numbers.
1307 * scanf recognizes the %a and %A format for scanning floating point numbers.
1309 * the new headers <stdint.h> and <inttypes.h> from ISO C 9X provides
1310 information and interfaces for the available integer types.
1312 * about 130 new math functions were added to implement the ISO C9x math
1313 library.
1315 * the new header <complex.h> contains definitions of the complex math
1316 functions from ISO C 9X.
1318 * the new header <tgmath.h> defines generic macros to use complex or
1319 real valued functions.
1321 * Thorsten Kukuk provided an implementation for NIS+, securelevel 0, 1 and 2.
1323 * Andreas Jaeger provided a test suite for the math library.
1325 * Mark Kettenis implemented the utmpx interface and an utmp daemon.
1327 * Ulrich Drepper added character set conversion functions (iconv).
1329 * Optimized string functions have been added.
1331 * The localedata addon is now part of glibc.
1333 * An implementation of profiling shared libraries was added by Ulrich Drepper.
1335 * Thorsten Kukuk and Ulrich Drepper provided an implementation for a caching
1336 daemon for NSS (nscd).
1338 Missing a better place here are some numbers on improvements. Under
1339 Linux 2.1.125 un-tar-ing the kernel sources takes
1341 user system wall
1343 using local files 12.19s 6.88s 22.91s
1345 using NIS 13.92s 8.91s 26.34s
1347 using NIS & nscd 10.37s 7.34s 25.30s
1349 using NIS+ 27.57s 30.37s 640.46s
1351 using NIS+ & nscd 10.25s 7.83s 26.51s
1353 using NIS & old nscd [1] 13.83s 8.32s 29.60s
1355 Keep in mind that non-namelookup related operations dominate above times.
1356 It was just a common complain that using NIS+ unpacking the kernel is
1357 horribly slow.
1359 [1] The old nscd implementation is not available anymore since it was
1360 distributed with glibc up to version 2.0.98 and thus is now replaced.
1362 * Tim Waugh provided an implementation of the POSIX.2 wordexp function family.
1364 * Mark Kettenis provided a Hesiod NSS module.
1366 * The ELF dynamic loader knows how to process dynamic string tokens ($ORIGIN
1367 and $PLATFORM) in RPATHs and similar strings (Ulrich Drepper).
1369 * rcmd can now handle netgroups (Dick Streefland).
1371 * A port to the ARM was contributed by Phil Blundell, Pat Beirne and Scott
1372 Bambrough.
1374 * Support for the IPv6 protocol has been added to the socket API, as per the
1375 latest draft standards.
1377 * Support for Linux 2.2 has been added.
1379 * Interface changes relative to the latest 2.0.x release:
1380 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1381 addseverity NEW: Unix98
1382 alphasort64 NEW: LFS
1383 argp_err_exit_status NEW: argp, GNU ext
1384 argp_error NEW: argp, GNU ext
1385 argp_failure NEW: argp, GNU ext
1386 argp_help NEW: argp, GNU ext
1387 argp_parse NEW: argp, GNU ext
1388 argp_program_bug_address NEW: argp, GNU ext
1389 argp_program_version NEW: argp, GNU ext
1390 argp_program_version_hook NEW: argp, GNU ext
1391 argp_state_help NEW: argp, GNU ext
1392 argp_usage NEW: argp, GNU ext
1393 authdes_create NEW: Secure RPC
1394 authdes_getucred NEW: Secure RPC
1395 authdes_pk_create NEW: Secure RPC
1396 backtrace NEW: GNU ext.
1397 backtrace_symbols NEW: GNU ext.
1398 backtrace_symbols_fd NEW: GNU ext.
1399 cacos NEW: ISO C 9x
1400 cacosf NEW: ISO C 9x
1401 cacosh NEW: ISO C 9x
1402 cacoshf NEW: ISO C 9x
1403 cacoshl NEW: ISO C 9x
1404 cacosl NEW: ISO C 9x
1405 capget NEW: kernel
1406 capset NEW: kernel
1407 carg NEW: ISO C 9x
1408 cargf NEW: ISO C 9x
1409 cargl NEW: ISO C 9x
1410 casin NEW: ISO C 9x
1411 casinf NEW: ISO C 9x
1412 casinh NEW: ISO C 9x
1413 casinhf NEW: ISO C 9x
1414 casinhl NEW: ISO C 9x
1415 casinl NEW: ISO C 9x
1416 catan NEW: ISO C 9x
1417 catanf NEW: ISO C 9x
1418 catanh NEW: ISO C 9x
1419 catanhf NEW: ISO C 9x
1420 catanhl NEW: ISO C 9x
1421 catanl NEW: ISO C 9x
1422 cbc_crypt NEW: Secure RPC
1423 ccos NEW: ISO C 9x
1424 ccosf NEW: ISO C 9x
1425 ccosh NEW: ISO C 9x
1426 ccoshf NEW: ISO C 9x
1427 ccoshl NEW: ISO C 9x
1428 ccosl NEW: ISO C 9x
1429 cexp NEW: ISO C 9x
1430 cexpf NEW: ISO C 9x
1431 cexpl NEW: ISO C 9x
1432 cimag NEW: ISO C 9x
1433 cimagf NEW: ISO C 9x
1434 cimagl NEW: ISO C 9x
1435 clearerr_locked REMOVED
1436 clntunix_create NEW: sunrpc ext
1437 clog NEW: ISO C 9x
1438 clog10 NEW: ISO C 9x
1439 clog10f NEW: ISO C 9x
1440 clog10l NEW: ISO C 9x
1441 clogf NEW: ISO C 9x
1442 clogl NEW: ISO C 9x
1443 conj NEW: ISO C 9x
1444 conjf NEW: ISO C 9x
1445 conjl NEW: ISO C 9x
1446 cpow NEW: ISO C 9x
1447 cpowf NEW: ISO C 9x
1448 cpowl NEW: ISO C 9x
1449 cproj NEW: ISO C 9x
1450 cprojf NEW: ISO C 9x
1451 cprojl NEW: ISO C 9x
1452 creal NEW: ISO C 9x
1453 crealf NEW: ISO C 9x
1454 creall NEW: ISO C 9x
1455 creat64 NEW: LFS
1456 csin NEW: ISO C 9x
1457 csinf NEW: ISO C 9x
1458 csinh NEW: ISO C 9x
1459 csinhf NEW: ISO C 9x
1460 csinhl NEW: ISO C 9x
1461 csinl NEW: ISO C 9x
1462 csqrt NEW: ISO C 9x
1463 csqrtf NEW: ISO C 9x
1464 csqrtl NEW: ISO C 9x
1465 ctan NEW: ISO C 9x
1466 ctanf NEW: ISO C 9x
1467 ctanh NEW: ISO C 9x
1468 ctanhf NEW: ISO C 9x
1469 ctanhl NEW: ISO C 9x
1470 ctanl NEW: ISO C 9x
1471 des_setparity NEW: Secure RPC
1472 ecb_crypt NEW: Secure RPC
1473 endutxent NEW: Unix98
1474 exp10 NEW: ISO C 9x
1475 exp10f NEW: ISO C 9x
1476 exp10l NEW: ISO C 9x
1477 exp2 NEW: ISO C 9x
1478 exp2f NEW: ISO C 9x
1479 exp2l NEW: ISO C 9x
1480 fattach NEW: STREAMS
1481 fdetach NEW: STREAMS
1482 fdim NEW: ISO C 9x
1483 fdimf NEW: ISO C 9x
1484 fdiml NEW: ISO C 9x
1485 feclearexcept NEW: ISO C 9x
1486 fegetenv NEW: ISO C 9x
1487 fegetexceptflag NEW: ISO C 9x
1488 fegetround NEW: ISO C 9x
1489 feholdexcept NEW: ISO C 9x
1490 feof_locked REMOVED
1491 feraiseexcept NEW: ISO C 9x
1492 ferror_locked REMOVED
1493 fesetenv NEW: ISO C 9x
1494 fesetexceptflag NEW: ISO C 9x
1495 fesetround NEW: ISO C 9x
1496 fetestexcept NEW: ISO C 9x
1497 feupdateenv NEW: ISO C 9x
1498 fflush_locked REMOVED
1499 ffsl NEW: GNU ext.
1500 ffsll NEW: GNU ext.
1501 fgetpos64 NEW: LFS
1502 fgets_unlocked NEW: GNU ext.
1503 fileno_locked REMOVED
1504 fma NEW: ISO C 9x
1505 fmaf NEW: ISO C 9x
1506 fmal NEW: ISO C 9x
1507 fmax NEW: ISO C 9x
1508 fmaxf NEW: ISO C 9x
1509 fmaxl NEW: ISO C 9x
1510 fmin NEW: ISO C 9x
1511 fminf NEW: ISO C 9x
1512 fminl NEW: ISO C 9x
1513 fmtmsg NEW: Unix98
1514 fopen64 NEW: LFS
1515 fputc_locked REMOVED
1516 fputs_unlocked NEW: GNU ext.
1517 fread_unlocked NEW: GNU ext.
1518 freopen64 NEW: LFS
1519 fseeko NEW: Unix98
1520 fsetpos64 NEW: LFS
1521 fstatfs64 NEW: LFS
1522 fstatvfs NEW: Unix98
1523 fstatvfs64 NEW: LFS
1524 ftello NEW: Unix98
1525 ftello64 NEW: LFS
1526 ftruncate64 NEW: LFS
1527 ftw64 NEW: LFS
1528 fwrite_unlocked NEW: GNU ext.
1529 gai_strerror NEW: IPv6
1530 gamma_r REMOVED
1531 gammaf_r REMOVED
1532 gammal_r REMOVED
1533 getchar_locked REMOVED
1534 getdate NEW: Unix98
1535 getdate_err NEW: Unix98
1536 getdate_r NEW: GNU ext.
1537 getmsg NEW: STREAMS
1538 getnameinfo NEW: IPv6
1539 getnetname NEW: Secure RPC
1540 getpmsg NEW: STREAMS
1541 getpt NEW: Unix98 PTY
1542 getrlimit64 NEW: LFS
1543 getutxent NEW: Unix98
1544 getutxid NEW: Unix98
1545 getutxline NEW: Unix98
1546 glob64 NEW: GNU ext.
1547 globfree64 NEW: GNU ext.
1548 gnu_get_libc_release NEW: GNU ext.
1549 gnu_get_libc_version NEW: GNU ext.
1550 grantpt NEW: Unix98 PTY
1551 host2netname NEW: Secure RPC
1552 iconv NEW: iconv
1553 iconv_close NEW: iconv
1554 iconv_open NEW: iconv
1555 if_freenameindex NEW: IPv6
1556 if_indextoname NEW: IPv6
1557 if_nameindex NEW: IPv6
1558 if_nametoindex NEW: IPv6
1559 in6addr_any NEW: IPv6
1560 in6addr_loopback NEW: IPv6
1561 inet6_isipv4mapped NEW: IPv6
1562 isastream NEW: STREAMS
1563 iswblank NEW: GNU ext.
1564 key_decryptsession NEW: Secure RPC
1565 key_decryptsession_pk NEW: Secure RPC
1566 key_encryptsession NEW: Secure RPC
1567 key_encryptsession_pk NEW: Secure RPC
1568 key_gendes NEW: Secure RPC
1569 key_get_conv NEW: Secure RPC
1570 key_secretkey_is_set NEW: Secure RPC
1571 key_setnet NEW: Secure RPC
1572 key_setsecret NEW: Secure RPC
1573 llrint NEW: ISO C 9x
1574 llrintf NEW: ISO C 9x
1575 llrintl NEW: ISO C 9x
1576 llround NEW: ISO C 9x
1577 llroundf NEW: ISO C 9x
1578 llroundl NEW: ISO C 9x
1579 log2 NEW: ISO C 9x
1580 log2f NEW: ISO C 9x
1581 log2l NEW: ISO C 9x
1582 lrint NEW: ISO C 9x
1583 lrintf NEW: ISO C 9x
1584 lrintl NEW: ISO C 9x
1585 lround NEW: ISO C 9x
1586 lroundf NEW: ISO C 9x
1587 lroundl NEW: ISO C 9x
1588 lseek64 NEW: LFS
1589 makecontext NEW: Unix98
1590 mempcpy NEW: GNU ext.
1591 mmap64 NEW: LFS
1592 moncontrol REMOVED
1593 modify_ldt NEW: kernel
1594 nan NEW: ISO C 9x
1595 nanf NEW: ISO C 9x
1596 nanl NEW: ISO C 9x
1597 nearbyint NEW: ISO C 9x
1598 nearbyintf NEW: ISO C 9x
1599 nearbyintl NEW: ISO C 9x
1600 netname2host NEW: Secure RPC
1601 netname2user NEW: Secure RPC
1602 nexttoward NEW: ISO C 9x
1603 nexttowardf NEW: ISO C 9x
1604 nexttowardl NEW: ISO C 9x
1605 nftw NEW: Unix98
1606 nftw64 NEW: LFS
1607 open64 NEW: LFS
1608 passwd2des NEW: Secure RPC
1609 pow10 NEW: GNU ext.
1610 pow10f NEW: GNU ext.
1611 pow10l NEW: GNU ext.
1612 pread NEW: Unix98
1613 pread64 NEW: LFS
1614 printf_size NEW: GNU ext.
1615 printf_size_info NEW: GNU ext.
1616 profil_counter REMOVED
1617 pthread_mutexattr_getkind_np REPLACED
1618 pthread_mutexattr_setkind_np REPLACED
1619 ptsname NEW: Unix98 PTY
1620 ptsname_r NEW: Unix98 PTY
1621 putc_locked REMOVED
1622 putchar_locked REMOVED
1623 putgrent NEW: GNU ext.
1624 putmsg NEW: STREAMS
1625 putpmsg NEW: STREAMS
1626 pututxline NEW: Unix98
1627 pwrite NEW: Unix98
1628 pwrite64 NEW: LFS
1629 readdir64 NEW: LFS
1630 readdir64_r NEW: LFS
1631 remquo NEW: ISO C 9x
1632 remquof NEW: ISO C 9x
1633 remquol NEW: ISO C 9x
1634 round NEW: ISO C 9x
1635 roundf NEW: ISO C 9x
1636 roundl NEW: ISO C 9x
1637 rtime NEW: GNU ext.
1638 scalbln NEW: ISO C 9x
1639 scalblnf NEW: ISO C 9x
1640 scalblnl NEW: ISO C 9x
1641 scandir64 NEW: LFS
1642 sendfile NEW: kernel
1643 setcontext NEW: Unix98
1644 setrlimit64 NEW: LFS
1645 setutxent NEW: Unix98
1646 sighold NEW: Unix98
1647 sigignore NEW: Unix98
1648 sigqueue NEW: POSIX.1b
1649 sigrelse NEW: Unix98
1650 sigset NEW: POSIX.1b
1651 sigtimedwait NEW: POSIX.1b
1652 sigwaitinfo NEW: POSIX.1b
1653 sincos NEW: GNU ext.
1654 sincosf NEW: GNU ext.
1655 sincosl NEW: GNU ext.
1656 statfs64 NEW: LFS
1657 statvfs NEW: Unix98
1658 statvfs64 NEW: LFS
1659 strcasestr NEW: GNU ext.
1660 strtoimax NEW: ISO C 9x
1661 strtoumax NEW: ISO C 9x
1662 strverscmp NEW: GNU ext.
1663 svcauthdes_stats NEW: Secure RPC
1664 svcunix_create NEW: sunrpc etx
1665 svcunixfd_create NEW: sunrpc ext
1666 swapcontext NEW: Unix98
1667 tcgetsid NEW: Unix98 PTY
1668 tdestroy NEW: GNU ext.
1669 tgamma NEW: ISO C 9x
1670 tgammaf NEW: ISO C 9x
1671 tgammal NEW: ISO C 9x
1672 tmpfile64 NEW: LFS
1673 trunc NEW: ISO C 9x
1674 truncate64 NEW: LFS
1675 truncf NEW: ISO C 9x
1676 truncl NEW: ISO C 9x
1677 umount2 NEW: kernel
1678 unlockpt NEW: Unix98 PTY
1679 updwtmpx NEW: Unix98
1680 user2netname NEW: Secure RPC
1681 utmpxname NEW: Unix98
1682 versionsort NEW: GNU ext.
1683 versionsort64 NEW: GNU ext.
1684 waitid NEW: Unix98
1685 wcscasecmp NEW: GNU ext.
1686 wcsncasecmp NEW: GNU ext.
1687 wcsnlen NEW: GNU ext.
1688 wcstoimax NEW: ISO C 9x
1689 wcstoll NEW: ISO C 9x
1690 wcstoull NEW: ISO C 9x
1691 wcstoumax NEW: ISO C 9x
1692 wcswcs NEW: Unix98
1693 wordexp NEW: POSIX.2
1694 wordfree NEW: POSIX.2
1695 write_profiling REMOVED
1696 xdecrypt NEW: Secure RPC
1697 xdr_authdes_cred NEW: Secure RPC
1698 xdr_authdes_verf NEW: Secure RPC
1699 xdr_cryptkeyarg NEW: Secure RPC
1700 xdr_cryptkeyarg2 NEW: Secure RPC
1701 xdr_cryptkeyres NEW: Secure RPC
1702 xdr_getcredres NEW: Secure RPC
1703 xdr_key_netstarg NEW: Secure RPC
1704 xdr_key_netstres NEW: Secure RPC
1705 xdr_keybuf NEW: Secure RPC
1706 xdr_keystatus NEW: Secure RPC
1707 xdr_netnamestr NEW: Secure RPC
1708 xdr_sizeof NEW: Secure RPC
1709 xdr_unixcred NEW: sunrpc ext
1710 xencrypt NEW: Secure RPC
1711 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1712 \f
1713 Version 2.0.6
1715 * more bug fixes
1717 \f
1718 Version 2.0.5
1720 * more bug fixes
1722 * inet_ntoa is thread-safe
1724 * updwtmp is moved from libutil to libc
1726 * rewrite of cbrt function
1728 * update of timezone data
1729 \f
1730 Version 2.0.4
1732 * more bug fixes
1733 \f
1734 Version 2.0.3
1736 * more bug fixes
1737 \f
1738 Version 2.0.2
1740 * more bug fixes
1742 * add atoll function
1744 * fix complex problems in Berkeley DB code
1746 * fix math functions
1747 \f
1748 Version 2.0.1
1750 * fixed lots of header problems (especially Linux/GNU specific)
1752 * dynamic loader preserves all registers
1754 * Roland McGrath provided support for handling of auxiliary objects in
1755 the ELF dynamic loader.
1757 * support for parallel builds is improved
1758 \f
1759 Version 2.0
1761 * GNU extensions are no longer declared by default. To enable them you
1762 must define the macro `_GNU_SOURCE' in your program or compile with
1763 `-D_GNU_SOURCE'.
1765 * The library has changed from using GNU ld symbol aliases to using weak
1766 symbols where available. The ELF object file format supports weak
1767 symbols; GNU ld also supports weak symbols in the a.out format. (There
1768 is also now support for other GNU ld extensions in ELF. Use the
1769 `--with-elf' option to configure to indicate you have ELF, and
1770 `--with-gnu-ld' if using GNU ld.) This change resulted in the deletion
1771 of many files which contained only symbol aliases, reducing the size of
1772 the source and the compiled library; many other files were renamed to
1773 less cryptic names previously occupied by the symbol alias files.
1774 There is a new header file <elf.h> for programs which operate on
1775 files in the ELF format.
1777 * Converted to Autoconf version 2, so `configure' has more options.
1778 Run `configure --help' to see the details.
1780 * The library can now be configured to build profiling, highly-optimized
1781 (but undebuggable), and/or shared libraries (ELF with GNU ld only). The
1782 `--enable-profile', `--enable-omitfp', and `--enable-shared' options to
1783 `configure' enable building these extra libraries. The shared library is
1784 built by default when using both ELF and GNU ld. When shared libraries
1785 are enabled, the new library `-ldl' is available for arbitrary run-time
1786 loading of shared objects; its interface is defined in <dlfcn.h>. The
1787 new header file <link.h> gives access to the internals of the run-time
1788 dynamic linker, `ld.so'. The shell script `ldd' is similar to the
1789 application of same name on other systems and it provides information
1790 about dynamically linked binaries.
1792 * The C library now provides the run-time support code for profiling
1793 executables compiled with `-pg'. Programs can control the profiling code
1794 through the interface in <sys/gmon.h>. The `gmon.out' files written by
1795 the GNU C library can be read only by GNU `gprof' (from GNU binutils);
1796 the support for this file format was contributed by David Mosberger-Tang.
1798 * The math code has been replaced with a math library based on fdlibm from
1799 Sun, and modified by JT Conklin and Ulrich Drepper with i387 support, by
1800 Ian Taylor with `float' functions and by Ulrich Drepper with `long double'
1801 functions. The math functions now reside in a separate library, so
1802 programs using them will need to use `-lm' their linking commands.
1804 * John C. Bowman contributed optimized ix87 assembler inline functions.
1806 * Ulrich Drepper has contributed support for an `/etc/nsswitch.conf'
1807 mechanism similar to that found in Solaris 2. This is now used for the
1808 group, passwd, hosts, networks, services, protocols, rpc, ethers,
1809 shadow, netgroup, publickey, and alias databases. The `nsswitch.conf'
1810 file controls what services are used for each individual database. This
1811 works by loading shared libraries with names specified in `nsswitch.conf',
1812 so service modules can be changed or added at any time without even
1813 relinking any program. Currently there are the file, db, and NIS based
1814 NSS services available.
1816 * The new functions `strtoq' and `strtouq' parse integer values from
1817 strings, like `strtol' and `strtoul', but they return `long long int' and
1818 `unsigned long long int' values, respectively (64-bit quantities).
1820 * The new functions `strtof' and `strtold' parse floating-point values from
1821 strings, like `strtod', but they return `float' and `long double' values,
1822 respectively (on some machines `double' and `long double' are the same).
1824 * Ulrich Drepper has contributed new implementations of the floating-point
1825 printing and reading code used in the `printf' family of functions and
1826 `strtod', `strtof', and `strtold'. These new functions are perfectly
1827 accurate, and much faster than the old ones.
1829 * The implementation of the POSIX locale model was completely rewritten by
1830 Ulrich Drepper. This includes the new programs `localedef' and `locale'
1831 to compile the POSIX locale definition.
1833 * The former dummy implementations of the strcoll and strxfrm function are
1834 now replaced by fully functional code contributed by Ulrich Drepper. The
1835 collation information comes from the POSIX locale definitions.
1837 * The new header <langinfo.h> defines an interface for accessing
1838 various locale-dependent data (using the locale chosen with `setlocale').
1840 * Ulrich Drepper has contributed a new suite of functions for operation on
1841 wide-character and multibyte-character strings, in <wchar.h>;
1842 and classification and case conversion of wide characters, in <wctype.h>.
1843 These new functions are conforming to the ISO C, Amendement 1 specification.
1845 * There is now a second implementation of the standard I/O library available.
1846 It comes from GNU libg++ as was written by Per Bothner, heavily modified
1847 by Hongjiu Lu and made thread safe by Ulrich Drepper.
1849 * You can now use positional parameter specifications in format strings
1850 for the `printf' and `scanf' families of functions. For example,
1851 `printf ("Number %2$d, Mr %1$s\n", "Jones", 6);'' prints
1852 ``Number 6, Mr Jones''. This is mainly useful when providing different
1853 format strings for different languages, whose grammars may dictate
1854 different orderings of the values being printed. To support this
1855 feature, the interface for `register_printf_handler' has changed; see
1856 the header file <printf.h> for details.
1858 * The `printf' and `scanf' families of functions now understand a new
1859 formatting flag for numeric conversions: the ' flag (e.g. %'d or %'f) says
1860 to group numbers as indicated by the locale; for `scanf' and friends, this
1861 says to accept as valid only a number with all the proper grouping
1862 separators in the right places. In the default "C" locale, numbers are
1863 not grouped; but locales for specific countries will define the usual
1864 conventions (i.e. separate thousands with `,' in the US locale).
1866 * The pgrp functions have been regularized, slightly incompatibly but much
1867 less confusingly. The core functions are now `getpgid' and `setpgid',
1868 which take arguments for the PID to operate on; the POSIX.1 `getpgrp' (no
1869 argument) and BSD `setpgrp' (identical to `setpgid') functions are
1870 provided for compatibility. There is no longer an incompatible `getpgrp'
1871 with an argument declared under _BSD_SOURCE; no BSD code uses it.
1873 * The new header file <fts.h> and suite of functions simplify programs that
1874 operate on directory trees. This code comes from 4.4 BSD.
1876 * The resolver code has been updated from the BIND 4.9.5-P1 release.
1877 Parts of the code were heavily modified by Ulrich Drepper to fit in the
1878 NSS scheme used in glibc.
1880 * There is a new malloc debugging hook `__memalign_hook'.
1882 * There are new typedefs `ushort' for `unsigned short int' and `uint' for
1883 `unsigned int' in <sys/types.h>. These are for compatibility only and
1884 their use is discouraged.
1886 * The `-lmcheck' library to enable standard malloc debugging hooks is now
1887 done differently, so that it works even without GNU ld.
1889 * New function `euidaccess' checks allowed access to a file like `access',
1890 but using the effective IDs instead of the real IDs.
1892 * The time zone data files have been updated for the latest and greatest
1893 local time conventions of the countries of the world.
1895 * The new function `dirfd' extracts the file descriptor used by a DIR stream;
1896 see <dirent.h>.
1898 * The new functions `ecvt', `fcvt', and `gcvt' provide an obsolete interface
1899 for formatting floating-point numbers. They are provided only for
1900 compatibility; new programs should use `sprintf' instead. There are
1901 also equivalent function for the `long double' floating-point type and
1902 all functions also exist in a reentrant form.
1904 * The new auxiliary library `-lutil' from 4.4 BSD contains various
1905 functions for maintaining the login-record files (primarily of use to
1906 system programs such as `login'), and convenient functions for
1907 allocating and initializing a pseudo-terminal (pty) device.
1909 * Ulrich Drepper has contributed new support for System V style
1910 shared memory and IPC on systems that support it.
1912 * Ulrich Drepper has contributed several miscellaneous new functions found
1913 in System V: The `hsearch' family of functions provide an effective
1914 implementation of hash tables; `a64l' and `l64a' provide a very simple
1915 binary to ASCII mapping; `drand48' and friends provide a 48-bit random
1916 number generator.
1918 * Ulrich Drepper has contributed new reentrant counterparts for the
1919 `random' and `hsearch' families of functions; `random_r', `hsearch_r', etc.
1921 * Ulrich Drepper has contributed new, highly-optimized versions of several
1922 string functions for the i486/Pentium family of processors.
1924 * Ulrich Drepper has updated the Linux-specific code, based largely
1925 on work done in Hongjiu Lu's version of GNU libc for Linux.
1926 The GNU library now supports Linux versions 2.0.10 and later,
1927 using the ELF object file format (i[3456]86-*-linux).
1929 * Andreas Schwab has ported the C library to Linux/m68k (m68k-*-linux).
1931 * David Mosberger-Tang and Richard Henderson have ported the C library
1932 to Linux/Alpha (alpha-*-linux). Richard Henderson contributed the
1933 dynamic linking support for ELF/Alpha.
1935 * Richard Henderson contributed several Alpha optimized assembler function
1936 for arithmetic and string handling.
1938 * Ulrich Drepper has contributed a new set of message catalog functions to
1939 support multiple languages using the <libintl.h> interface, for use with
1940 his new package GNU gettext. Translation volunteers have contributed
1941 catalogs of the library's messages in Spanish, German, and Korean.
1943 * For compatibility with XPG4, Ulrich Drepper has contributed the `gencat'
1944 program and the `catgets' function for reading the catalog files it
1945 creates. (The <libintl.h> interface is preferred; we include the
1946 <nl_types.h> interface using `catgets' only for source compatibility with
1947 programs already written to use it.)
1949 * New header file <values.h> gives SVID-compatible names for <limits.h>
1950 constants.
1952 * Various new macros, declarations, and small header files for compatibility
1953 with 4.4 BSD.
1955 * New function `group_member' is a convenient way to check if a process has
1956 a given effective group ID.
1958 * When using GCC 2.7 and later, the socket functions are now declared in a
1959 special way so that passing an argument of type `struct sockaddr_in *',
1960 `struct sockaddr_ns *', or `struct sockaddr_un *' instead of the generic
1961 `struct sockaddr *' type, does not generate a type-clash warning.
1963 * New function `error' declared in header file <error.h> is a convenient
1964 function for printing error messages and optionally exiting; this is the
1965 canonical function used in GNU programs. The new functions `err', `warn',
1966 and friends in header file <err.h> are the canonical 4.4 BSD interface for
1967 doing the same thing.
1969 * The <glob.h> interface has several new flags from 4.4 BSD that extend the
1970 POSIX.2 `glob' function to do ~ and {...} expansion.
1972 * New function `unsetenv' complements `setenv' for compatibility with 4.4 BSD.
1973 `clearenv' which is used in POSIX.9 is also available.
1975 * New function `getsid' returns session ID number on systems that support it.
1977 * We have incorporated the 4.4 BSD `db' library (version 1.85). New header
1978 files <db.h> and <mpool.h> provide a rich set of functions for several
1979 types of simple databases stored in memory and in files, and <ndbm.h> is
1980 an old `ndbm'-compatible interface using the `db' functions. Link with
1981 `-ldb' to get these functions.
1983 * New macro `strdupa' copies a string like `strdup', but uses local stack
1984 space from `alloca' instead of dynamic heap space from `malloc'.
1986 * New function `strnlen' is like `strlen' but searches only a given maximum
1987 number of characters for the null terminator. `stpncpy', `strndup' and
1988 `strndupa' are similar variants for the `stpcpy', `strdup' and `strdupa'
1989 function.
1991 * New function `statfs' in header <sys/statfs.h>.
1993 * The new <argz.h> and <envz.h> interfaces contributed by Miles Bader
1994 provide convenient functions for operating on blocks of null-terminated
1995 strings.
1997 * A new suite of functions in <utmp.h> handle all the details of reading
1998 and writing the utmp file.
2000 * An implementation of the NIS/YP(tm) based NSS service was contributed by
2001 Thorsten Kukuk.
2003 * Paul Eggert and Ulrich Drepper modified the `strftime' function to be
2004 completely POSIX compliant and also implemented the extended functionality
2005 to handle alternate digit representation and alternate era date formats.
2007 * Ulrich Drepper provided an implementation of the `strptime' function
2008 defined in XPG4.2 which transforms a string into a `struct tm' value.
2010 * Paul Eggert provided the tzselect shell script as part of the timezone
2011 code. The shell script makes it easy to select the correct timezone
2012 specification.
2014 * The implementation of the malloc family of functions is completely replaced
2015 by a new implementation by Doug Lea with many improvements by Wolfram Gloger.
2016 The implementation uses the mmap function (if available) and it is
2017 optimized for the use in multi threaded programs.
2019 * Ulrich Drepper contributed a MD5 "encryption" for the crypt family of
2020 functions. This new functionality is usable by specifying a special
2021 salt string and it is compatible with implementation on *BSD systems.
2023 * Lots of functions from the XPG4.2 standard were added by Ulrich Drepper:
2024 `getsubopt' to handle second level command line options, `bsd_signal'
2025 to access BSD style `signal' functionality, the obsolete `regexp' style
2026 expression matcher.
2028 * the `lchown' function is available on system which support this
2029 functionality.
2031 * The implementation of the shadow password handling function was contributed
2032 by Ulrich Drepper.
2034 * David Mosberger-Tang changed the SunRPC implementation to be 64bit safe.
2036 * POSIX.1g support was added. The <sys/select.h> header is available,
2037 `isfdtype' and `pselect' are implemented. Craig Metz contributed an
2038 implementation of `getaddrinfo'.
2039 \f
2040 Version 1.09
2042 * For cross-compilation you should now set `BUILD_CC' instead of `HOST_CC'.
2044 * New header file <fstab.h> and new functions `getfsspec', `getfsent' and
2045 friends, for parsing /etc/fstab. This code comes from 4.4 BSD.
2047 * The new function `daemon' from 4.4 BSD is useful for server programs that
2048 want to put themselves in the background.
2050 * Joel Sherrill has contributed support for several standalone boards that
2051 run without an operating system.
2053 * `printf', `scanf' and friends now accept a `q' type modifier for long
2054 long int as well as `ll'. Formats using these might be `%qu' or `%lld'.
2056 * All of the code taken from BSD (notably most of the math and networking
2057 routines) has been updated from the BSD 4.4-Lite release.
2059 * The resolver code has been updated from the BIND-4.9.3-BETA9 release.
2061 * The new functions `getdomainname' and `setdomainname' fetch or change the
2062 YP/NIS domain name. These are system calls which exist on systems which
2063 have YP (aka NIS).
2065 * The time zone data files have been updated for the latest international
2066 conventions.
2068 * The SunRPC programs `portmap' and `rpcinfo' are now installed in
2069 $(sbindir) (usually /usr/local/sbin) instead of $(bindir).
2070 \f
2071 Version 1.08
2073 * The C library now includes support for Sun RPC, from Sun's free
2074 RPCSRC-4.0 distribution. The `portmap', `rpcinfo', and `rpcgen' programs
2075 are included. (There is still no support for YP.)
2077 * Tom Quinn has contributed a port of the C library to SGI machines running
2078 Irix 4 (mips-sgi-irix4).
2080 * The new `lockf' function is a simplified interface to the locking
2081 facilities of `fcntl', included for compatibility.
2083 * New time functions `timegm', `timelocal', and `dysize' for compatibility.
2085 * New header file <sys/timeb.h> and new function `ftime' for compatibility.
2087 * New header files <poll.h> and <sys/poll.h> and new function `poll' for
2088 compatibility.
2090 * The error message printed by `assert' for a failed assertion now includes
2091 the name of the program (if using GNU ld) and the name of the calling
2092 function (with versions of GCC that support this).
2094 * The `psignal' function is now declared in <signal.h>, not <stdio.h>.
2096 * The library now includes the <sys/mman.h> header file and memory
2097 management functions `mmap', `munmap', `mprotect', `msync', and
2098 `madvise', on systems that support those facilities.
2100 * The interface for `mcheck' has changed slightly: the function called to
2101 abort the program when an allocation inconsistency is detected now takes
2102 an argument that indicates the type of failure. The new function
2103 `mprobe' lets you request a consistency check for a particular block at
2104 any time (checks are normally done only when you call `free' or `realloc'
2105 on a block).
2107 * It is now possible to easily cross-compile the C library, building on one
2108 system a library to run on another machine and/or operating system. All
2109 you need to do is set the variable `HOST_CC' in `configparms' to the
2110 native compiler for programs to run on the machine you are building on (a
2111 few generator programs are used on Unix systems); set `CC' to the
2112 cross-compiler.
2114 * The new function `fexecve' (only implemented on the GNU system) executes
2115 a program file given a file descriptor already open on the file.
2116 \f
2117 Version 1.07
2119 * Brendan Kehoe has contributed most of a port to the DEC Alpha
2120 running OSF/1 (alpha-dec-osf1). He says it is 75% complete.
2122 * You can set the variable `libprefix' in `configparms' to specify a prefix
2123 to be prepended to installed library files; this makes it easy to install
2124 the GNU C library to be linked as `-lgnuc' or whatever.
2126 * The new `stpncpy' is a cross between `stpcpy' and `strncpy': It
2127 copies a limited number of characters from a string, and returns the
2128 address of the last character written.
2130 * You no longer need to check for whether the installed `stddef.h' is
2131 compatible with the GNU C library. configure now checks for you.
2133 * You can now define a per-stream `fileno' function to convert the
2134 stream's cookie into an integral file descriptor.
2136 * ``malloc (0)'' no longer returns a null pointer. Instead, it
2137 allocates zero bytes of storage, and returns a unique pointer which
2138 you can pass to `realloc' or `free'. The behavior is undefined if
2139 you dereference this pointer.
2141 * The C library now runs on Sony NEWS m68k machines running either
2142 NewsOS 3 or NewsOS 4.
2144 * The new `syscall' function is a system-dependent primitive function
2145 for invoking system calls. It has the canonical behavior on Unix
2146 systems, including unreliable return values for some calls (such as
2147 `pipe', `fork' and `getppid').
2149 * The error code `EWOULDBLOCK' is now obsolete; it is always defined
2150 to `EAGAIN', which is the preferred name. On systems whose kernels
2151 use two distinct codes, the C library now translates EWOULDBLOCK to
2152 EAGAIN in every system call function.
2153 \f
2154 Version 1.06
2156 * The GNU C Library Reference Manual is now distributed with the library.
2157 `make dvi' will produce a DVI file of the printed manual.
2158 `make info' will produce Info files that you can read on line using C-h i
2159 in Emacs or the `info' program.
2160 Please send comments on the manual to bug-glibc-manual@gnu.org.
2162 * The library now supports SVR4 on i386s (i386-unknown-sysv4).
2164 * Brendan Kehoe has contributed a port to Sun SPARCs running Solaris 2.
2166 * Jason Merrill has contributed a port to the Sequent Symmetry running
2167 Dynix version 3 (i386-sequent-dynix).
2169 * The library has been ported to i386s running SCO 3.2.4 (also known as SCO
2170 ODT 2.0; i386-unknown-sco3.2.4) or SCO 3.2 (i386-unknown-sco3.2).
2172 * New function `memory_warnings' lets you arrange to get warnings when
2173 malloc is running out of memory to allocate, like Emacs gives you.
2175 * The C library now contains the relocating allocator used in Emacs 19 for
2176 its editing buffers. This allocator (ralloc) minimizes allocation
2177 overhead and fragmentation by moving allocated regions around whenever it
2178 needs to. You always refer to a ralloc'd region with a "handle" (a
2179 pointer to a pointer--an object of type `void **').
2181 * There is a new `printf' format: `%m' gives you the string corresponding
2182 to the error code in `errno'.
2184 * In `scanf' formats, you can now use `%as' or `%a[' to do the normal `%s'
2185 or `%[' conversion, but instead of filling in a fixed-sized buffer you
2186 pass, the `a' modifier says to fill in a `char **' you pass with a
2187 malloc'd string.
2189 * The `fnmatch' function supports the new flag bits `FNM_LEADING_DIR' and
2190 `FNM_CASEFOLD'. `FNM_LEADING_DIR' lets a pattern like `foo*' match a
2191 name like `foo/bar'. `FNM_CASEFOLD' says to ignore case in matching.
2193 * `mkstemp' is a traditional Unix function to atomically create and open a
2194 uniquely-named temporary file.
2195 \f
2196 Version 1.05
2198 * The standard location for the file that says what the local timezone is
2199 has changed again. It is now `/usr/local/etc/localtime' (or more
2200 precisely, `${prefix}/etc/localtime') rather than `/etc/localtime'.
2202 * The distribution no longer contains any files with names longer than 14
2203 characters.
2205 * `struct ttyent' has two new flag bits: TTY_TRUSTED and TTY_CONSOLE.
2206 These are set by the new `trusted' and `console' keywords in `/etc/ttys'.
2208 * New functions `ttyslot' and `syslog' from 4.4 BSD.
2209 \f
2210 Version 1.04
2212 * The configuration process has changed quite a bit. The `configure'
2213 script is now used just like the configuration scripts for other GNU
2214 packages. The `sysdeps' directory hierarchy is much rearranged.
2215 The file `INSTALL' explains the new scheme in detail.
2217 * The header files no longer need to be processed into ANSI C and
2218 traditional C versions. There is just one set of files to install, and
2219 it will work with ANSI or old C compilers (including `gcc -traditional').
2221 * Brendan Kehoe and Ian Lance Taylor have ported the library to the
2222 MIPS DECStation running Ultrix 4.
2224 * The Sun 4 startup code (crt0) can now properly load SunOS 4 shared libraries.
2225 Tom Quinn contributed the initial code. The GNU C library can NOT yet be
2226 made itself into a shared library.
2228 * Yet further improved support for the i386, running 4.3 BSD-like systems
2229 (such as Mach 3 with the Unix single-server), or System V.
2231 * New function `strncasecmp' to do case-insensitive string comparison
2232 with limited length.
2234 * New function `strsep' is a reentrant alternative to `strtok'.
2236 * New functions `scandir' and `alphasort' for searching directories.
2238 * New function `setenv' is a better interface to `putenv'.
2240 * Ian Lance Taylor has contributed an implementation of the SVID `ftw'
2241 function for traversing a directory tree.
2243 * The GNU obstack package is now also part of the C library.
2244 The new function `open_obstack_stream' creates a stdio stream that
2245 writes onto an obstack; `obstack_printf' and `obstack_vprintf' do
2246 formatted output directly to an obstack.
2248 * Miscellaneous new functions: reboot, nice, sigaltstack (4.4 BSD only),
2249 cfmakeraw, getusershell, getpass, swab, getttyent, seteuid, setegid.
2251 * `FNM_FILE_NAME' is another name for `FNM_PATHNAME', used with `fnmatch'.
2253 * The new functions `strfry' and `memfrob' do mysterious and wonderful
2254 things to your strings.
2256 * There are some new test programs: test-fseek, testmb, and testrand.
2258 * Some work has been done to begin porting the library to 4.4 BSD and Linux.
2259 These ports are not finished, but are a good starting place for really
2260 supporting those systems.
2262 * `/etc/localtime' is now the standard location for the file that says what
2263 the local timezone is, rather than `/usr/local/lib/zoneinfo/localtime'.
2264 This follows the general principle that `/etc' is the place for all local
2265 configuration files.
2267 * The C library header files now use `extern "C"' when used by the C++
2268 compiler, so the C library should now work with C++ code.
2270 * The header file <bstring.h> is gone. <string.h> now declares bcopy,
2271 bcmp, bzero, and ffs. (Update: nowadays these functions are declared
2272 in <strings.h>.)
2274 * Mike Haertel (of GNU e?grep and malloc fame) has written a new sorting
2275 function which uses the `merge sort' algorithm, and is said to be
2276 significantly faster than the old GNU `qsort' function. Merge sort is
2277 now the standard `qsort' function. The new algorithm can require a lot
2278 of temporary storage; so, the old sorting function is called when the
2279 required storage is not available.
2281 * The C library now includes Michael Glad's Ultra Fast Crypt, which
2282 provides the Unix `crypt' function, plus some other entry points.
2284 * The code and header files taken from 4.4 BSD have been updated with the
2285 latest files released from Berkeley.
2286 \f
2287 ----------------------------------------------------------------------
2288 Copyright information:
2290 Copyright (C) 1992-2013 Free Software Foundation, Inc.
2292 Permission is granted to anyone to make or distribute verbatim copies
2293 of this document as received, in any medium, provided that the
2294 copyright notice and this permission notice are preserved,
2295 thus giving the recipient permission to redistribute in turn.
2297 Permission is granted to distribute modified versions
2298 of this document, or of portions of it,
2299 under the above conditions, provided also that they
2300 carry prominent notices stating who last changed them.
2301 \f
2302 Local variables:
2303 version-control: never
2304 fill-column: 76
2305 End: