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1 GNU C Library NEWS -- history of user-visible changes.
2 Copyright (C) 1992-2014 Free Software Foundation, Inc.
3 See the end for copying conditions.
5 Please send GNU C library bug reports via <http://sourceware.org/bugzilla/>
6 using `glibc' in the "product" field.
7 \f
8 Version 2.19
10 * The following bugs are resolved with this release:
12 156, 387, 431, 762, 832, 926, 2801, 4772, 6786, 6787, 6807, 6810, 7003,
13 9721, 9954, 10253, 10278, 11087, 11157, 11214, 12100, 12486, 12986,
14 13028, 13982, 13985, 14029, 14032, 14120, 14143, 14155, 14286, 14547,
15 14699, 14752, 14782, 14876, 14910, 15004, 15048, 15073, 15089, 15128,
16 15218, 15268, 15277, 15308, 15362, 15374, 15400, 15425, 15427, 15483,
17 15522, 15531, 15532, 15593, 15601, 15608, 15609, 15610, 15632, 15640,
18 15670, 15672, 15680, 15681, 15723, 15734, 15735, 15736, 15748, 15749,
19 15754, 15760, 15763, 15764, 15797, 15799, 15825, 15843, 15844, 15846,
20 15847, 15849, 15850, 15855, 15856, 15857, 15859, 15867, 15886, 15887,
21 15890, 15892, 15893, 15895, 15897, 15901, 15905, 15909, 15915, 15917,
22 15919, 15921, 15923, 15939, 15941, 15948, 15963, 15966, 15985, 15988,
23 15997, 16032, 16034, 16036, 16037, 16038, 16041, 16055, 16071, 16072,
24 16074, 16077, 16078, 16103, 16112, 16133, 16143, 16144, 16146, 16150,
25 16151, 16153, 16167, 16169, 16172, 16195, 16214, 16245, 16271, 16274,
26 16283, 16289, 16293, 16314, 16316, 16330, 16337, 16338, 16356, 16365,
27 16366, 16369, 16372, 16375, 16379, 16384, 16385, 16386, 16387, 16390,
28 16394, 16400, 16407, 16408, 16414, 16430, 16431, 16453, 16474, 16506,
29 16510
31 * Slovenian translations for glibc messages have been contributed by the
32 Translation Project's Slovenian team of translators.
34 * The public headers no longer use __unused nor __block. This change is to
35 support compiling programs that are derived from BSD sources and use
36 __unused internally, and to support compiling with Clang's -fblock
37 extension which uses __block.
39 * CVE-2012-4412 The strcoll implementation caches indices and rules for
40 large collation sequences to optimize multiple passes. This cache
41 computation may overflow for large collation sequences and may cause a
42 stack or buffer overflow. This is now fixed to use a slower algorithm
43 which does not use a cache if there is an integer overflow.
45 * CVE-2012-4424 The strcoll implementation uses malloc to cache indices and
46 rules for large collation sequences to optimize multiple passes and falls
47 back to alloca if malloc fails, resulting in a possible stack overflow.
48 The implementation now falls back to an uncached collation sequence lookup
49 if malloc fails.
51 * CVE-2013-4788 The pointer guard used for pointer mangling was not
52 initialized for static applications resulting in the security feature
53 being disabled. The pointer guard is now correctly initialized to a
54 random value for static applications. Existing static applications need
55 to be recompiled to take advantage of the fix (bug 15754).
57 * CVE-2013-4237 The readdir_r function could write more than NAME_MAX bytes
58 to the d_name member of struct dirent, or omit the terminating NUL
59 character. (Bugzilla #14699).
61 * CVE-2013-4332 The pvalloc, valloc, memalign, posix_memalign and
62 aligned_alloc functions could allocate too few bytes or corrupt the
63 heap when passed very large allocation size values (Bugzilla #15855,
64 #15856, #15857).
66 * CVE-2013-4458 Stack overflow in getaddrinfo with large number of results
67 for AF_INET6 has been fixed (Bugzilla #16072).
69 * New locales: ak_GH, anp_IN, ar_SS, cmn_TW, hak_TW, lzh_TW, nan_TW, pap_AW,
70 pap_CW, quz_PE, the_NP.
72 * Substantially revised locales: gd_GB, ht_HT
74 * The LC_ADDRESS field was updated to support country_car for almost all
75 supported locales.
77 * ISO 1427 definitions were updated.
79 * ISO 3166 definitions were updated.
81 * The localedef utility now supports --big-endian and --little-endian
82 command-line options to generate locales for a different system from that
83 for which the C library was built.
85 * Binary locale files now only depend on the endianness of the system for
86 which they are generated and not on other properties of that system. As a
87 consequence, binary files generated with new localedef may be incompatible
88 with old versions of the GNU C Library, and binary files generated with
89 old localedef may be incompatible with this version of the GNU C Library,
90 in the following circumstances:
92 + Locale files may be incompatible on m68k systems.
94 + Locale archive files (but not separate files for individual locales) may
95 be incompatible on systems where plain "char" is signed.
97 * The configure option --disable-versioning has been removed. Builds with
98 --disable-versioning had not worked for several years.
100 * ISO 639 definitions were updated for Chiga (cgg) and Chinese (gan, hak, czh,
101 cjy, lzh, cmn, mnp, cdo, czo, cpx, wuu, hsn, yue).
103 * SystemTap probes for malloc have been introduced.
105 * SystemTap probes for slow multiple precision fallback paths of
106 transcendental functions have been introduced.
108 * Support for powerpc64le has been added.
110 * The soft-float powerpc port now supports e500 processors.
112 * Support for STT_GNU_IFUNC symbols added for ppc32/power4+ and ppc64.
114 * A new feature test macro _DEFAULT_SOURCE is available to enable the same
115 set of header declarations that are enabled by default, even when other
116 feature test macros or compiler options such as -std=c99 would otherwise
117 disable some of those declarations.
119 * The _BSD_SOURCE feature test macro no longer enables BSD interfaces that
120 conflict with POSIX. The libbsd-compat library (which was a dummy library
121 that did nothing) has also been removed.
123 * Preliminary documentation about Multi-Thread, Async-Signal and
124 Async-Cancel Safety has been added.
125 \f
126 Version 2.18
128 * The following bugs are resolved with this release:
130 2546, 2560, 5159, 6809, 7006, 10060, 10062, 10283, 10357, 10686, 11120,
131 11561, 12310, 12387, 12492, 12515, 12723, 13550, 13889, 13951, 13988,
132 14142, 14176, 14200, 14256, 14280, 14293, 14317, 14327, 14478, 14496,
133 14582, 14686, 14812, 14888, 14894, 14907, 14908, 14909, 14920, 14952,
134 14964, 14981, 14982, 14985, 14991, 14994, 14996, 15000, 15003, 15006,
135 15007, 15014, 15020, 15022, 15023, 15036, 15054, 15055, 15062, 15078,
136 15084, 15085, 15086, 15100, 15160, 15214, 15221, 15232, 15234, 15283,
137 15285, 15287, 15304, 15305, 15307, 15309, 15327, 15330, 15335, 15336,
138 15337, 15339, 15342, 15346, 15359, 15361, 15366, 15380, 15381, 15394,
139 15395, 15405, 15406, 15409, 15416, 15418, 15419, 15423, 15424, 15426,
140 15429, 15431, 15432, 15441, 15442, 15448, 15465, 15480, 15485, 15488,
141 15490, 15492, 15493, 15497, 15506, 15529, 15536, 15553, 15577, 15583,
142 15618, 15627, 15631, 15654, 15655, 15666, 15667, 15674, 15711, 15755,
143 15759.
145 * CVE-2013-2207 Incorrectly granting access to another user's pseudo-terminal
146 has been fixed by disabling the use of pt_chown (Bugzilla #15755).
147 Distributions can re-enable building and using pt_chown via the new configure
148 option `--enable-pt_chown'. Enabling the use of pt_chown carries with it
149 considerable security risks and should only be used if the distribution
150 understands and accepts the risks.
152 * CVE-2013-0242 Buffer overrun in regexp matcher has been fixed (Bugzilla
153 #15078).
155 * CVE-2013-1914 Stack overflow in getaddrinfo with many results has been
156 fixed (Bugzilla #15330).
158 * Add support for calling C++11 thread_local object destructors on thread
159 and program exit. This needs compiler support for offloading C++11
160 destructor calls to glibc.
162 * Improved worst case performance of libm functions with double inputs and
163 output.
165 * Support for priority inherited mutexes in pthread condition variables on
166 non-x86 architectures.
168 * Port to Xilinx MicroBlaze contributed by David Holsgrove.
170 * Optimized string functions for AArch64. Implemented by Marcus Shawcroft.
172 * Optimized string functions for ARM. Implemented by Will Newton and
173 Richard Henderson.
175 * Optimized libm functions for SPARC. Implemented by David S. Miller.
177 * Support for building more of ARM glibc as Thumb-2 code. Implemented by
178 Richard Henderson.
180 * Support for building most of MIPS glibc as MIPS16 code. Implemented by
181 Chung-Lin Tang, Maciej W. Rozycki and Maxim Kuvyrkov.
183 * Added a benchmark framework to track performance of functions in glibc.
185 * New <math.h> macro named issignaling to check for a signaling NaN (sNaN).
186 It is based on draft TS 18661 and currently enabled as a GNU extension.
188 * On Linux, the clock function now uses the clock_gettime system call
189 for improved precision, rather than old times system call.
191 * Added support for version-3 tz format files. This is needed when using
192 the tz database release 2013e or later, and affects a few unusual cases --
193 currently only TZ='America/Godthab' for time stamps after 2037.
195 * Added new API functions pthread_getattr_default_np and
196 pthread_setattr_default_np to get and set the default pthread
197 attributes of a process.
199 * Added support for TSX lock elision for pthread mutexes on i386 and x86-64.
200 This may improve lock scaling of existing programs on TSX capable systems.
201 When the --enable-lock-elision=yes parameter is specified at configure
202 time lock elision will be enabled by default for all PTHREAD_MUTEX_DEFAULT
203 mutexes.
205 * Support added for AT_HWCAP2 (to coincide with Linux kernel 3.10
206 availability). Implemented by Ryan S. Arnold.
208 * Support added for POWER8 platform. Implemented by Ryan S. Arnold.
209 \f
210 Version 2.17
212 * The following bugs are resolved with this release:
214 1349, 3439, 3479, 3665, 5044, 5246, 5298, 5400, 6530, 6677, 6778, 6808,
215 9685, 9914, 10014, 10038, 10114, 10191, 10631, 10873, 11438, 11607, 11638,
216 11741, 12140, 13013, 13412, 13542, 13601, 13603, 13604, 13629, 13679,
217 13696, 13698, 13717, 13741, 13759, 13761, 13763, 13881, 13939, 13950,
218 13952, 13966, 14042, 14047, 14090, 14150, 14151, 14152, 14154, 14157,
219 14166, 14173, 14195, 14197, 14237, 14246, 14251, 14252, 14283, 14298,
220 14303, 14307, 14328, 14331, 14336, 14337, 14347, 14349, 14368, 14376,
221 14417, 14447, 14459, 14476, 14477, 14501, 14505, 14510, 14516, 14518,
222 14519, 14530, 14532, 14538, 14543, 14544, 14545, 14557, 14562, 14568,
223 14576, 14579, 14583, 14587, 14595, 14602, 14610, 14621, 14638, 14645,
224 14648, 14652, 14660, 14661, 14669, 14672, 14683, 14694, 14716, 14719,
225 14743, 14767, 14783, 14784, 14785, 14793, 14796, 14797, 14801, 14803,
226 14805, 14807, 14811, 14815, 14821, 14822, 14824, 14828, 14831, 14833,
227 14835, 14838, 14856, 14863, 14865, 14866, 14868, 14869, 14871, 14872,
228 14879, 14889, 14893, 14898, 14914.
230 * Optimization of memcpy for MIPS.
232 * CVE-2011-4609 svc_run() produces high cpu usage when accept fails with
233 EMFILE has been fixed (Bugzilla #14889).
235 * The add-on ports collection is now distributed in the "ports" subdirectory
236 of the main GNU C Library distribution, rather than separately.
238 * Port to ARM AArch64 contributed by Linaro.
240 * Support for STT_GNU_IFUNC symbols added for s390 and s390x.
241 Optimized versions of memcpy, memset, and memcmp added for System z10 and
242 zEnterprise z196.
243 Implemented by Andreas Krebbel.
245 * The new function secure_getenv allows secure access to the environment,
246 returning NULL if running in a SUID/SGID process. This function replaces
247 the internal function __secure_getenv.
249 * SystemTap static probes have been added into the dynamic linker.
250 Implemented by Gary Benson.
252 * Optimizations of string functions strstr, strcasestr and memmem.
253 Implemented by Maxim Kuvyrkov.
255 * The minimum Linux kernel version that this version of the GNU C Library
256 can be used with is 2.6.16.
258 * Optimizations of string functions memchr, wcschr, wcscpy, and wcsrchr for
259 powerpc POWER7. Implemented by Will Schmidt.
261 * New configure option --disable-nscd builds the C library such that it
262 never attempts to contact the Name Service Caching Daemon (nscd).
263 New configure option --disable-build-nscd avoids building nscd itself;
264 this is the default if --disable-nscd is used.
266 * Improved support for cross-compilation, including cross-testing and
267 bootstrap builds without a previously built glibc.
269 * Several testsuite tests are now able to test multiple IFUNC variants of an
270 interface, rather than just testing the one that would be chooen by
271 default.
273 * New configure options --with-bugurl and --with-pkgversion, for
274 distributors to use to embed their bug-reporting and package version
275 information in --help and --version output.
277 * The ttyname and ttyname_r functions on Linux now fall back to searching for
278 the tty file descriptor in /dev/pts or /dev if /proc is not available. This
279 allows creation of chroots without the procfs mounted on /proc.
281 * The `crypt' function now fails if passed salt bytes that violate the
282 specification for those values. On Linux, the `crypt' function will
283 consult /proc/sys/crypto/fips_enabled to determine if "FIPS mode" is
284 enabled, and fail on encrypted strings using the MD5 or DES algorithm
285 when the mode is enabled.
287 * The `clock_*' suite of functions (declared in <time.h>) is now available
288 directly in the main C library. Previously it was necessary to link with
289 -lrt to use these functions. This change has the effect that a
290 single-threaded program that uses a function such as `clock_gettime' (and
291 is not linked with -lrt) will no longer implicitly load the pthreads
292 library at runtime and so will not suffer the overheads associated with
293 multi-thread support in other code such as the C++ runtime library.
295 * New locales: ayc_PE, doi_IN, ia_FR, mni_IN, nhn_MX, niu_NU, niu_NZ,
296 sat_IN, and szl_PL.
297 \f
298 Version 2.16
300 * The following bugs are resolved with this release:
302 174, 208, 350, 369, 411, 706, 766, 887, 2074, 2541, 2547, 2548, 2550,
303 2551, 2552, 2553, 2554, 2562, 2563, 2565, 2566, 2570, 2576, 2636, 2678,
304 3335, 3440, 3748, 3768, 3866, 3868, 3906, 3976, 3992, 4026, 4108, 4596,
305 4822, 5077, 5461, 5805, 5993, 6471, 6486, 6578, 6649, 6730, 6770, 6794,
306 6884, 6890, 6894, 6895, 6907, 6911, 6959, 7064, 9739, 9902, 10110, 10135,
307 10140, 10153, 10210, 10254, 10346, 10375, 10545, 10716, 10846, 11174,
308 11261, 11322, 11365, 11451, 11494, 11521, 11677, 11837, 11959, 12047,
309 12097, 12193, 12194, 12297, 12298, 12301, 12340, 12354, 12416, 12495,
310 13058, 13223, 13361, 13525, 13526, 13527, 13528, 13529, 13530, 13531,
311 13532, 13533, 13547, 13551, 13552, 13553, 13555, 13556, 13559, 13563,
312 13566, 13576, 13579, 13583, 13592, 13594, 13613, 13618, 13637, 13656,
313 13658, 13673, 13691, 13695, 13704, 13705, 13706, 13718, 13726, 13738,
314 13739, 13743, 13750, 13758, 13760, 13761, 13775, 13786, 13787, 13792,
315 13806, 13824, 13840, 13841, 13844, 13846, 13848, 13851, 13852, 13854,
316 13871, 13872, 13873, 13879, 13882, 13883, 13884, 13885, 13886, 13892,
317 13895, 13908, 13910, 13911, 13912, 13913, 13914, 13915, 13916, 13917,
318 13918, 13919, 13920, 13921, 13922, 13923, 13924, 13926, 13927, 13928,
319 13938, 13941, 13942, 13954, 13955, 13956, 13963, 13967, 13968, 13970,
320 13973, 13979, 13983, 13986, 13996, 14012, 14027, 14033, 14034, 14036,
321 14040, 14043, 14044, 14048, 14049, 14050, 14053, 14055, 14059, 14064,
322 14075, 14080, 14083, 14103, 14104, 14109, 14112, 14117, 14122, 14123,
323 14134, 14153, 14183, 14188, 14199, 14210, 14218, 14229, 14241, 14273,
324 14277, 14278.
326 * Support for the x32 ABI on x86-64 added. The x32 target is selected by
327 configuring glibc with:
328 BUILD_CC='gcc' CC='gcc -mx32' CXX='g++ -mx32'
329 Visit <http://sites.google.com/site/x32abi/> for more x32 ABI info.
330 Implemented by H.J. Lu.
332 * ISO C11 support:
334 + define static_assert
336 + do not declare gets
338 + declare at_quick_exit and quick_exit also for ISO C11
340 + aligned_alloc. NB: The code is deliberately allows the size parameter
341 to not be a multiple of the alignment. This is a moronic requirement
342 in the standard but it is only a requirement on the caller, not the
343 implementation.
345 + timespec_get added
347 + uchar.h support added
349 + CMPLX, CMPLXF, CMPLXL added
351 Implemented by Ulrich Drepper.
353 * Support for the IA-64 has been moved to ports.
355 * Remove support for anything but ELF binary format
357 * Checking versions of poll, ppoll added.
358 Implemented by Ulrich Drepper.
360 * More generic and 64-bit performance optimizations to math functions.
361 Implemented by Ulrich Drepper.
363 * New configure option --enable-obsolete-rpc makes the deprecated RPC
364 headers and functions available at compile time as they were before
365 version 2.14. This option will be removed at some time in the future
366 after the TI-RPC library becomes fully sufficient for the needs of
367 existing applications.
369 * Compatibility code for Linux kernel versions before 2.4 has been removed.
370 Note that glibc is not expected to work with any Linux kernel version
371 before 2.6.
373 * New header <sys/auxv.h> and function getauxval allowing easy access to
374 the AT_* key-value pairs passed from the Linux kernel. The header also
375 defines the HWCAP_* bits associated with the AT_HWCAP key.
377 * New locales: mag_IN
379 * New configure option --enable-systemtap builds SystemTap static probes
380 into libc for setjmp and longjmp and into libpthread for various operations.
381 So far the setjmp/longjmp probes and some of the libpthread probes are
382 provided only for i*86 and x86_64.
383 Implemented by Roland McGrath and Rayson Ho.
385 * Optimized expf for x86-32 and x86-64. Implemented by Liubov Dmitrieva.
387 * More optimized functions for PowerPC. Implemented by Adhemerval Zanella
388 and Will Schmidt.
390 * More optimized functions for SPARC. Implemented by David S. Miller.
392 * Improved support for cross-compilation, especially bootstrap builds
393 without a previously built glibc.
395 * Ports for the TILE-Gx and TILEPro families of processors. Contributed by
396 Chris Metcalf from Tilera.
398 * Support for the old ARM ABI has been removed from ports. Only the EABI is
399 now supported for ARM processors.
401 * The hard-float variant of the ARM EABI now uses /lib/ld-linux-armhf.so.3
402 as the name of the dynamic linker, to distinguish it from the
403 /lib/ld-linux.so.3 dynamic linker used for the base EABI.
405 * Support for CRIS has been removed from ports.
407 * A new class of installed header has been documented for low-level
408 platform-specific functionality. PowerPC added the first instance with a
409 function to provide time base register access. Contributed by Tulio
410 Magno Quites Machado Filho.
412 * ix86 configurations now install header files that are consistent with
413 what x86-64 configurations install. These same header files can be used
414 for -m32, -m64, or -mx32 builds.
415 Contributed by H.J. Lu.
417 * Math library bug fixes. A thorough audit of all open math library bugs was
418 conducted by Joseph Myers. Significant progress was made on many math
419 library bugs resulting in more accurate exceptions and function results.
420 Many thanks to all those that contributed including Andreas Jaeger for his
421 patch review and work on the x87 trigonometric instruction issues.
423 * Timezone data is no longer installed. Timezone-related binaries and scripts
424 will continue to be installed. Users should obtain their timezone data from
425 their distribution provider or from the tzdata package at
426 <ftp://munnari.oz.au/pub/>.
427 \f
428 Version 2.15
430 * The following bugs are resolved with this release:
432 6779, 6783, 9696, 10103, 10709, 11589, 11929, 12403, 12786, 12840, 12847,
433 12868, 12852, 12874, 12885, 12892, 12906, 12907, 12922, 12935, 12962,
434 13007, 13021, 13061, 13062, 13067, 13068, 13085, 13088, 13090, 13092,
435 13096, 13114, 13118, 13123, 13134, 13138, 13147, 13150, 13166, 13179,
436 13185, 13189, 13192, 13268, 13276, 13282, 13291, 13305, 13328, 13335,
437 13337, 13344, 13358, 13367, 13413, 13416, 13423, 13439, 13446, 13472,
438 13484, 13506, 13515, 13523, 13524, 13538, 13540
440 * New program pldd to list loaded object of a process
441 Implemented by Ulrich Drepper.
443 * Add nss_db support back to glibc. No more dependency on Berkeley db
444 and support for initgroups lookups.
445 Implemented by Ulrich Drepper.
447 * Optimized strcpy, strncpy, stpcpy, stpncpy for SSE2 and SSSE3 on x86-32.
448 Contributed by HJ Lu.
450 * Improved strcpy, strncpy, stpcpy, stpncpy for SSE2 and SSSE3 on x86-64.
451 Contributed by HJ Lu.
453 * Optimized strcat, strncat on x86-64 and optimized wcscmp, wcslen, strnlen
454 on x86-32 and x86-64.
455 Contributed by Liubov Dmitrieva.
457 * Optimized strchr and strrchr for SSE on x86-32.
458 Contributed by Liubov Dmitrieva.
460 * Optimized memchr, memrchr, rawmemchr, memcmp, wmemcmp, wcschr, wcscpy
461 for x86-64 and x86-32.
462 Contributed by Liubov Dmitrieva.
464 * New interfaces: scandirat, scandirat64
465 Implemented by Ulrich Drepper.
467 * Checking versions of FD_SET, FD_CLR, and FD_ISSET added.
468 Implemented by Ulrich Drepper.
470 * nscd now also caches the netgroup database.
471 Implemented by Ulrich Drepper.
473 * Integrate libm with gcc's -ffinite-math-only option.
474 Implemented by Ulrich Drepper.
476 * Lots of generic, 64-bit, and x86-64-specific performance optimizations
477 to math functions. Implemented by Ulrich Drepper.
479 * Optimized strcasecmp and strncasecmp for AVX on x86-64.
480 Implemented by Ulrich Drepper.
482 * New Linux interfaces: process_vm_readv, process_vm_writev
484 * Optimized strcasecmp and strncasecmp for SSSE3 and SSE4.2 on x86-32.
485 Implemented by Ulrich Drepper.
487 * Optimized nearbyint and strcasecmp for PPC.
488 Implemented by Adhemerval Zanella.
490 * New locales: bho_IN, unm_US, es_CU, ta_LK
491 \f
492 Version 2.14
494 * The following bugs are resolved with this release:
496 386, 6420, 7101, 9730, 9732, 9809, 10138, 10149, 10157, 11099, 11257,
497 11258, 11487, 11532, 11558, 11578, 11634, 11653, 11668, 11697, 11724,
498 11781, 11799, 11820, 11837, 11857, 11869, 11892, 11895, 11901, 11945,
499 11947, 11952, 11987, 12052, 12083, 12158, 12178, 12200, 12346, 12350,
500 12393, 12420, 12432, 12445, 12449, 12453, 12454, 12460, 12469, 12489,
501 12509, 12510, 12511, 12518, 12527, 12541, 12545, 12551, 12582, 12583,
502 12587, 12597, 12601, 12611, 12625, 12626, 12631, 12650, 12653, 12655,
503 12660, 12671, 12681, 12684, 12685, 12711, 12713, 12714, 12717, 12723,
504 12724, 12734, 12738, 12746, 12766, 12775, 12777, 12782, 12788, 12792,
505 12795, 12811, 12813, 12814, 12841
507 * The RPC implementation in libc is obsoleted. Old programs keep working
508 but new programs cannot be linked with the routines in libc anymore.
509 Programs in need of RPC functionality must be linked against TI-RPC.
510 The TI-RPC implementation is IPv6 enabled and there are other benefits.
512 Visible changes of this change include (obviously) the inability to link
513 programs using RPC functions without referencing the TI-RPC library and the
514 removal of the RPC headers from the glibc headers.
515 Implemented by Ulrich Drepper.
517 * New Linux interfaces: clock_adjtime, name_to_handle_at, open_by_handle_at,
518 syncfs, setns, sendmmsg
520 * New locales: os_RU, bem_ZA, en_ZA, ff_SN, sw_KE, sw_TZ, lb_LU, wae_CH,
521 yue_HK, lij_IT, mhr_RU
523 * New encodings: CP770, CP771, CP772, CP773, CP774
525 * New program sotruss to trace calls through PLTs
526 Implemented by Ulrich Drepper.
528 * The malloc hook implementation is marked deprecated and will be removed
529 from the default implementation in the next version. The design never
530 worked ever since the introduction of threads. Even programs which do
531 not create threads themselves can use multiple threads created internally.
532 \f
533 Version 2.13
535 * The following bugs are resolved with this release:
537 3268, 6812, 7066, 10085, 10484, 10563, 10851, 11149, 11155, 11577, 11611,
538 11640, 11655, 11701, 11840, 11856, 11883, 11903, 11904, 11968, 11979,
539 12005, 12037, 12067, 12077, 12078, 12092, 12093, 12107, 12108, 12113,
540 12140, 12159, 12167, 12191, 12194, 12201, 12204, 12205, 12207, 12348,
541 12378, 12394, 12397
543 * New Linux interfaces: prlimit, prlimit64, fanotify_init, fanotify_mark
545 * POWER7 optimizations: memset, memcmp, strncmp
547 * New optimized string functions for x86-64: strnlen (SSE2),
548 strcasecmp (SSE2, SSSE3, SSE4.2), strncasecmp (SSE2, SSSE3, SSE4.2)
549 Implemented by Ulrich Drepper.
550 \f
551 Version 2.12
553 * The following bugs are resolved with this release:
555 3662, 4457, 5553, 10162, 10401, 10414, 10554, 10824, 10864, 10915,
556 10918, 10936, 10939, 10958, 10968, 10969, 10972, 10992, 11000, 11001,
557 11007, 11010, 11027, 11039, 11040, 11041, 11043, 11046, 11056, 11070,
558 11093, 11115, 11125, 11126, 11127, 11134, 11141, 11149, 11183, 11184,
559 11185, 11186, 11187, 11188, 11189, 11190, 11191, 11192, 11193, 11194,
560 11200, 11230, 11235, 11242, 11254, 11258, 11271, 11272, 11276, 11279,
561 11287, 11292, 11319, 11332, 11333, 11387, 11389, 11390, 11394, 11397,
562 11410, 11438, 11449, 11470, 11471, 11520, 11537, 11538, 11571
564 * New interfaces: pthread_getname_np, pthread_setname_np
566 * New Linux interface: recvmmsg
568 * STT_GNU_IFUNC implemented for Sparc by David Miller.
570 * The dynamic linker now recognizes supported ABI versions from the
571 EI_ABIVERSION field in the ELF header.
572 Implemented by Ulrich Drepper.
574 * New NIS mode selector ADJUNCT_AS_SHADOW. The passwd.adjunct.byname table
575 will not be used to fill in password fields in the passwd.byname replies.
576 Instead it is used to synthesize the shadow.byname table, should it be
577 missing. This is a useful mode in some installations involving Solaris.
578 Implemented by Ulrich Drepper.
580 * New locales: kok_IN, sq_MK, cv_RU
581 \f
582 Version 2.11
584 * The following bugs are resolved with this release:
586 3270, 7094, 9924, 9986, 10011, 10085, 10107, 10159, 10162, 10166, 10183,
587 10195, 10196, 10200, 10203, 10207, 10211, 10213, 10217, 10221, 10229,
588 10262, 10286, 10312, 10315, 10319, 10349, 10360, 10391, 10402, 10416,
589 10418, 10422, 10425, 10446, 10448, 10452, 10540, 10553, 10560, 10564,
590 10609, 10643, 10692, 10713, 10717, 10730, 10731, 10742, 10780, 10784,
591 10789, 10817, 10823, 10840, 10847
593 * New interfaces: execvpe, pthread_sigqueue, mkstemps, mkstemps64, mkostemps,
594 mkostemps64
595 Implemented by Ulrich Drepper.
597 * Checking version of longjmp added that fails if an uninitialized stack
598 frame would be created. Implemented by Ulrich Drepper.
600 * STT_GNU_IFUNC is now supported in static executables.
601 Implemented by H.J. Lu.
603 * STT_GNU_IFUNC implemented for PPC by Alan Modra.
605 * New optimized string functions for x86-64: strstr, strcasestr, memcmp,
606 strcspn, strpbrk, strspn, strcpy, stpcpy, strncpy, strcmp (SSE2, SSE4.2),
607 strncmp (SSE2, SSE4.2), strchr (SSE4.2), strrchr (SSE4.2).
608 Contributed by H.J. Lu.
610 strlen, rawmemchr, strcmp (SSSE3), strncmp (SSSE3).
611 Implemented by Ulrich Drepper.
613 * New optimized string functions for x86: strlen, strcspn, strspn, strpbrk,
614 strstr, strcasestr.
615 Contributed by H.J. Lu.
617 * Support for fma instruction in AVX on x86-64.
618 Implemented by H.J. Lu and Ulrich Drepper.
620 * AVX support in x86-64 auditing support in ld.so.
621 Implemented by H.J. Lu.
623 * STB_GNU_UNIQUE support added.
624 Implemented by Ulrich Drepper.
626 * Implement second fallback mode for optimized DNS lookup for even more
627 broken environments. If two requests from the same port are not
628 handled correctly close the socket and open a new one before sending
629 the second request. The 'single-request-reopen' option in /etc/resolv.conf
630 can be used to select this mode right away, instead of rediscovering the
631 necessity is every process again.
632 Implemented by Ulrich Drepper.
634 * New resolver flag RES_USE_DNSSEC to enable use of verified lookup.
635 Implemented by Adam Tkac.
637 * Optimized iconv conversions for S390x.
638 Implemented by Andreas Krebbel.
640 * Using condvars with PI mutexes is now more efficient due to kernel
641 support for requeueing to PI futexes. NPTL support added for x86-64.
642 Implemented by Ulrich Drepper.
644 * New locales: ps_AF, my_MM
645 \f
646 Version 2.10
648 * The following bugs are resolved with this release:
650 697, 5381, 5807, 6411, 6545, 7040, 7058, 7067, 7080, 7083, 7095, 7098,
651 9677, 9694, 9697, 9701, 9704, 9705, 9706, 9720, 9726, 9730, 9733, 9736,
652 9741, 9750, 9753, 9759, 9781, 9791, 9793, 9823, 9833, 9844, 9880, 9881,
653 9891, 9893, 9895, 9913, 9916, 9920, 9948, 9955, 9957, 9963, 9985, 10052,
654 10069, 10086, 10087, 10090, 10092, 10093, 10100, 10118, 10128
656 * New interfaces: preadv, preadv64, pwritev, pwritev64, malloc_info
657 Implemented by Ulrich Drepper.
659 * New Linux interfaces: accept4, fallocate, fallocate64.
660 Implemented by Ulrich Drepper.
662 * Correct declarations of string function when used in C++ code. This
663 could lead to compile errors for invalid C++ code.
665 * XPG7/POSIX 2008 compilation environment. Many GNU-specific functions are
666 now in POSIX.
668 * New POSIX 2008 interface: psiginfo
669 Implemented by Ulrich Drepper.
671 * New ISO C++1x interfaces: quick_exit, at_quick_exit
672 Implemented by Ulrich Drepper.
674 * Support for selecting between multiple function definitions at runtime
675 using STT_GNU_IFUNC symbols. Implemented by Ulrich Drepper.
677 * The libcrypt library can now use the hash function implementations in
678 NSS. Implemented by Ulrich Drepper.
680 * The malloc implementation can be compiled to be less memory efficient
681 but higher performing in multi-threaded programs.
682 Implemented by Ulrich Drepper.
684 * New locales: nan_TW@latin, ks_IN
686 * Faster strlen, strchr, strchrnul, strrchr, memchr, and rawmemchr for x86-64.
687 Implemented by Ulrich Drepper.
689 * Extended printf hook support. It is possible to use user-defined types
690 and extend existing format specifiers.
691 Implemented by Ulrich Drepper.
693 * Handling for group shadow files has been added.
694 Implemented by Ulrich Drepper.
696 * DNS IPv4-IPv6 parallel lookup now deals better with broken DNS
697 servers (the case, e.g., for some people using the built-in DNS
698 server in ADSL modems/routers). There is a once-per-process timeout
699 in case of a broken server. To avoid it, users can run nscd or put
700 'options single-request' in /etc/resolv.conf.
701 Implemented by Ulrich Drepper.
702 \f
703 Version 2.9
705 * The following bugs are resolved with this release:
707 3406, 5209, 5210, 5381, 5794, 5814, 5911, 6428, 6438, 6442, 6447, 6461,
708 6472, 6505, 6544, 6589, 6612, 6634, 6653, 6654, 6657, 6698, 6712, 6713,
709 6719, 6723, 6724, 6740, 6763, 6771, 6790, 6791, 6817, 6824, 6839, 6843,
710 6845, 6856, 6857, 6860, 6867, 6875, 6919, 6920, 6942, 6947, 6955, 6966,
711 6968, 6974, 6980, 6995, 7008, 7009, 7029
713 * Unified lookup for getaddrinfo: IPv4 and IPv6 addresses are now looked
714 up at the same time. Implemented by Ulrich Drepper.
716 * TLS descriptors for LD and GD on x86 and x86-64.
717 Implemented by Alexandre Oliva.
719 * getaddrinfo now handles DCCP and UDPlite.
720 Implemented by Ulrich Drepper.
722 * New fixed-size conversion macros: htobe16, htole16, be16toh, le16toh,
723 htobe32, htole32, be32toh, le32toh, htobe64, htole64, be64toh, le64toh.
724 Implemented by Ulrich Drepper.
726 * New implementation of memmem, strstr, and strcasestr which is O(n).
727 Implemented by Eric Blake.
729 * New Linux interfaces: inotify_init1, dup3, epoll_create1, pipe2
731 * Implement "e" option for popen to open file descriptor with the
732 close-on-exec flag set. Implemented by Ulrich Drepper.
734 * Implement "b" mode for fmemopen. In this mode writes writes don't
735 implicitly add a NUL byte and seeks from the end of the buffer really
736 use the buffer end, not the string length as the basis.
737 Implemented by Ulrich Drepper.
739 * Many functions, exported and internal, now atomically set the close-on-exec
740 flag when run on a sufficiently new kernel. Implemented by Ulrich Drepper.
742 * Sorting rules for some Indian languages (Kannada, Gurumukhi, Telugu,
743 Sinhala)
744 Implemented by Pravin Satpute.
746 * New locales: sd_IN, sd_IN@devanagari, ks_IN@devanagari, ht_HT, en_AG, nl_AW.
747 \f
748 Version 2.8
750 * The following bugs are resolved with this release:
752 2549, 3112, 4314, 4407, 4997, 5012, 5040, 5112, 5204, 5208, 5209, 5220,
753 5222, 5224, 5225, 5237, 5238, 5240, 5245, 5277, 5346, 5375, 5378, 5382,
754 5424, 5427, 5428, 5435, 5436, 5439, 5441, 5442, 5443, 5451, 5452, 5454,
755 5455, 5463, 5464, 5465, 5475, 5477, 5478, 5520, 5541, 5545, 5553, 5600,
756 5602, 5607, 5614, 5627, 5628, 5736, 5737, 5741, 5753, 5760, 5762, 5768,
757 5774, 5777, 5778, 5779, 5786, 5790, 5818, 5854, 5857, 5903, 5939, 5979,
758 5983, 5995, 5998, 6004, 6007, 6020, 6021, 6024, 6040, 6042
760 * New locales: bo_CN, bo_IN, shs_CA.
762 * New encoding: HP-ROMAN9, HP-GREEK8, HP-THAI8, HP-TURKISH8.
764 * Sorting rules for some Indian languages (Devanagari and Gujarati).
765 Implemented by Pravin Satpute.
767 * IPV6 addresses in /etc/resolv.conf can now have a scope ID
769 * nscd caches now all timeouts for DNS entries
770 Implemented by Ulrich Drepper.
772 * nscd is more efficient and wakes up less often.
773 Implemented by Ulrich Drepper.
775 * More checking functions: asprintf, dprintf, obstack_printf, vasprintf,
776 vdprintf, and obstack_vprintf.
777 Implemented by Jakub Jelinek.
779 * Faster memset for x86-64.
780 Implemented by Harsha Jagasia and H.J. Lu.
782 * Faster memcpy on x86.
783 Implemented by Ulrich Drepper.
785 * ARG_MAX is not anymore constant on Linux. Use sysconf(_SC_ARG_MAX).
786 Implemented by Ulrich Drepper.
788 * Faster sqrt and sqrtf implemention for some PPC variants.
789 Implemented by Steven Munroe.
790 \f
791 Version 2.7
793 * The following bugs are resolved with this release:
795 4125, 4126, 4178, 4359, 4407, 4512, 4514, 4525, 4554, 4556, 4557, 4566,
796 4582, 4586, 4588, 4599, 4610, 4647, 4702, 4705, 4726, 4745, 4772, 4773,
797 4775, 4776, 4792, 4813, 4814, 4816, 4833, 4858, 4860, 4896, 4905, 4925,
798 4936, 4937, 4938, 4941, 4946, 4963, 4972, 5010, 5028, 5043, 5058, 5063,
799 5071, 5103, 5104, 5112, 5113, 5184, 5186
801 * More checking functions: fread, fread_unlocked, open*, mq_open.
802 Implemented by Jakub Jelinek and Ulrich Drepper.
804 * Extend fortification to C++. Implemented by Jakub Jelinek.
806 * Implement 'm' modifier for scanf. Add stricter C99/SUS compliance
807 by not recognizing 'a' as a modifier when those specs are requested.
808 Implemented by Jakub Jelinek.
810 * PPC optimizations to math and string functions.
811 Implemented by Steven Munroe.
813 * New interfaces: mkostemp, mkostemp64. Like mkstemp* but allow additional
814 options to be passed. Implemented by Ulrich Drepper.
816 * More CPU set manipulation functions. Implemented by Ulrich Drepper.
818 * New Linux interfaces: signalfd, eventfd, eventfd_read, and eventfd_write.
819 Implemented by Ulrich Drepper.
821 * Handle private futexes in the NPTL implementation.
822 Implemented by Jakub Jelinek and Ulrich Drepper.
824 * Add support for O_CLOEXEC. Implement in Hurd. Use throughout libc.
825 Implemented by Roland McGrath and Ulrich Drepper.
827 * Linux/x86-64 vDSO support. Implemented by Ulrich Drepper.
829 * SHA-256 and SHA-512 based password encryption.
830 Implemented by Ulrich Drepper.
832 * New locales: ber_DZ, ber_MA, en_NG, fil_PH, fur_IT, fy_DE, ha_NG, ig_NG,
833 ik_CA, iu_CA, li_BE, li_NL, nds_DE, nds_NL, pap_AN, sc_IT, tk_TM, ug_CN,
834 yo_NG.
836 + New iconv modules: MAC-CENTRALEUROPE, ISO-8859-9E, KOI8-RU.
837 Implemented by Ulrich Drepper.
838 \f
839 Version 2.6
841 * The following bugs are resolved with this release:
843 3156, 3213, 3285, 3291, 3306, 3313, 3320, 3322, 3325, 3326, 3334, 3348,
844 3352, 3363, 3369, 3426, 3427, 3429, 3451, 3458, 3465, 3480, 3483, 3493,
845 3514, 3515, 3559, 3632, 3664, 3673, 3674, 3745, 3747, 3818, 3840, 3842,
846 3851, 3855, 3884, 3885, 3902, 3905, 3919, 3944, 3954, 3955, 3957, 3991,
847 3995, 3996, 4024, 4040, 4069, 4070, 4074, 4076, 4096, 4101, 4102, 4114,
848 4130, 4131, 4181, 4276, 4306, 4342, 4344, 4349, 4364, 4368, 4381, 4392,
849 4403, 4405, 4406, 4411, 4438, 4439, 4455, 4456, 4465, 4512, 4514, 4586,
850 4702, 4858
852 * New Linux interfaces: epoll_pwait, sched_getcpu.
854 * New generic interfaces: strerror_l.
856 * nscd can now cache the services database. Implemented by Ulrich Drepper.
857 \f
858 Version 2.5
860 * The following bugs are resolved with this release:
862 39, 68, 192, 352, 388, 531, 935, 1006, 1201, 1203, 1386, 1782, 1783, 1784,
863 1785, 1786, 1787, 1951, 1974, 1996, 2072, 2098, 2125, 2134, 2158, 2182,
864 2349, 2376, 2386, 2389, 2415, 2418, 2420, 2423, 2450, 2451, 2466, 2472,
865 2473, 2477, 2498, 2499, 2501, 2502, 2505, 2507, 2508, 2509, 2517, 2526,
866 2569, 2571, 2592, 2611, 2625, 2632, 2644, 2662, 2680, 2683, 2684, 2693,
867 2695, 2703, 2734, 2751, 2764, 2766, 2775, 2792, 2821, 2823, 2832, 2841,
868 2843, 2883, 2892, 2908, 2914, 2926, 2961, 2978, 2980, 2987, 2997, 2998,
869 3013, 3018, 3034, 3040, 3044, 3123, 3124, 3137, 3138, 3143, 3155, 3189,
870 3225, 3251, 3252, 3253, 3273
872 * For Linux, the sorting of addresses returned by getaddrinfo now also
873 handles rules 3, 4, and 7 from RFC 3484. I.e., all rules are handled.
874 Implemented by Ulrich Drepper.
876 * Allow system admin to configure getaddrinfo with the /etc/gai.conf file.
877 Implemented by Ulrich Drepper.
879 * New Linux interfaces: splice, tee, sync_file_range, vmsplice.
881 * New iconv module for MIK. Contributed by Alexander Shopov.
883 * For sites with broken group and/or passwd database, the auto-propagate
884 option of nscd can prevent creating ID lookup entries from the results
885 of a name lookup and vice versa. This usually is no problem but some
886 site might have problems with the default behavior.
887 Implemented by Ulrich Drepper.
889 * Iterating over entire database in NIS can be slow. With the
890 SETENT_BATCH_READ option in /etc/default/nss a system admin can decide
891 to trade time for memory. The entire database will be read at once.
892 Implemented by Ulrich Drepper.
894 * The interfaces introduced in RFC 3542 have been implemented by
895 Ulrich Drepper.
897 * Support for the new ELF hash table format was added by Ulrich Drepper.
899 * Support for priority inheritance mutexes added by Jakub Jelinek and
900 Ulrich Drepper.
902 * Support for priority protected mutexes added by Jakub Jelinek.
904 * New locales: nr_ZA, pa_PK, ca_AD, ca_FR, ca_IT, el_CY, tr_CY, as_IN,
905 or_IN, csb_PL, fy_NL, sr_ME.
906 \f
907 Version 2.4
909 * More overflow detection functions.
911 * New iconv converters for IBM1025, IBM1122, IBM1137, IBM1153,
912 IBM1154, IBM1155, IBM1156, IBM1157, and IBM1158 contributed by Jiro Sekiba.
914 More converters for IBM803, IBM901, IBM902, IBM921, IBM1008, IBM1097,
915 IBM1112, IBM1123, IBM1130, IBM1140, IBM1141, IBM1142, IBM1143, IBM1144,
916 IBM1145, IBM1146, IBM1147, IBM1148, IBM1149, IBM1166, IBM1167, IBM4517,
917 IBM4899, IBM4909, IBM4971, IBM5347, IBM9030, IBM9066, IBM9448, IBM12712,
918 IBM16804, IBM1364, IBM1371, IBM1388, IBM1390, and IBM1399 contributed
919 by Masahide Washizawa.
921 * It is now possible to install audit libraries for the dynamic linker using
922 LD_AUDIT. Implemented by Ulrich Drepper.
924 * The LinuxThreads add-on, providing pthreads on Linux 2.4 kernels, is no
925 longer supported. The new NPTL implementation requires Linux 2.6 kernels.
926 For a libc and libpthread that works well on Linux 2.4 kernels, we
927 recommend using the stable 2.3 branch.
929 * The new function open_wmemstream acts like open_memstream,
930 but uses a wchar_t wide character buffer.
932 * The new function ppoll is an improved version of poll, similar to pselect.
934 * New interfaces: fdopendir, openat, fstatat, fchmodat, fchownat,
935 futimesat, faccessat, mkdirat, mkfifoat, mknodat,
936 renameat, unlinkat, linkat, symlinkat, readlinkat.
938 * New Linux kernel system calls: unshare,
939 inotify_init, inotify_add_watch, inotify_rm_watch.
941 * The euidaccess function is now also known by the alias eaccess,
942 for compatibility with some other systems.
944 * Timezone data updated to 2006b version.
945 \f
946 Version 2.3.6
948 * The following bugs are resolved with this release:
950 38, 253, 549, 622, 653, 721, 758, 851, 877, 915, 934, 955, 961,
951 1016, 1037, 1076, 1079, 1080, 1081, 1082, 1083, 1084, 1085, 1086,
952 1087, 1088, 1090, 1091, 1092, 1093, 1094, 1095, 1096, 1097, 1098,
953 1099, 1100, 1101, 1102, 1103, 1104, 1105, 1106, 1107, 1108, 1109,
954 1110, 1111, 1112, 1113, 1125, 1137, 1138, 1249, 1250, 1251, 1252,
955 1253, 1254, 1350, 1358, 1394, 1438, 1498, 1534
957 Visit <http://sources.redhat.com/bugzilla/> for the details of each bug.
959 * As of this release, GCC 4 can be used to compile the C Library.
961 * Timezone data updated to 2005m version.
962 \f
963 Version 2.3.5
965 * The following bugs are resolved with this release:
967 284, 592, 602, 626, 633, 640, 650, 661, 671, 681, 693, 700, 710, 719,
968 722, 723, 725, 726, 727, 728, 729, 730, 731, 732, 733, 734, 735, 736,
969 737, 738, 739, 740, 741, 742, 743, 744, 745, 765, 767, 768, 769, 776,
970 777, 787, 821, 822, 823, 825
972 Visit <http://sources.redhat.com/bugzilla/> for the details of each bug.
973 \f
974 Version 2.3.4
976 * Support for RFC 3678. Real implementations exist only for Linux so far.
977 Implemented by Ulrich Drepper.
979 * nscd can now cache entries persistently. Expiring entries are reloaded.
980 For speedups the cache can be shared in memory with client processes.
981 Implemented by Ulrich Drepper.
983 * nscd can now perform SELinux checks.
984 Implemented by Matthew Rickard <mjricka@epoch.ncsc.mil>.
986 * getaddrinfo queries are now cached. Canonical name lookup is performed
987 efficiently.
988 Implemented by Ulrich Drepper.
990 * The nothrow function attribute is used when headers are used by gcc when
991 compiling C code. This can avoid significant amounts of exception
992 handling data.
994 * The malloc functions perform more error checking and are stricter when
995 it comes to reacting on errors. The default action is to terminate
996 the process after showing an error message. Implemented by Ulrich Drepper.
998 * Reverse lookups of IPv6 addresses does not use bit string or .ip6.int
999 lookups anymore unless explicitly requested. Implemented by Ulrich Drepper.
1001 * Namespaces in ld.so are implemented. DSOs can be loaded in separate
1002 namespaces using the new function dlmopen(). This feature is of course,
1003 like most other dynamic loading functionality, not available in statically
1004 linked applications. Implemented by Ulrich Drepper.
1006 * Low-overhead boundary checking variants of string and some stdio functions
1007 were added. These are to be used in conjunction with a gcc patch by
1008 Jakub Jelinek which adds calls to these functions if possible.
1009 Implemented by Jakub Jelinek and Ulrich Drepper.
1011 * Old code for several operating systems and machine architectures that
1012 have not been in working condition in a long time have been removed from
1013 the main source tree maintained by the GNU C Library's maintainers.
1014 These files are now reside in the separate `ports' source module
1015 that is usable as an add-on when building the library.
1016 \f
1017 Version 2.3.3
1019 * New functions `dladdr1' and `dlinfo' in <dlfcn.h> provide more ways to
1020 interrogate the dynamic linker, compatible with the Solaris interface.
1022 * ELF thread-local storage support (TLS) now works on PowerPC and PowerPC64;
1023 implemented by Paul Mackerras, Steven Munroe, and Roland McGrath.
1025 * getifaddrs now uses the netlink interface on Linux to get its information.
1026 Implemented by Thorsten Kukuk.
1028 * getaddrinfo now implements AI_V4MAPPED, AI_ALL, and AI_ADDRCONF.
1029 Implemented by Ulrich Drepper.
1031 * support for non-executable stacks on x86 has been added. Changes mostly
1032 by Roland McGrath.
1034 * regex is now much faster for multibyte locales. Changes by Jakub Jelinek
1035 and Ulrich Drepper.
1037 * getaddrinfo now performs destination address selection according to
1038 RFC 3484.
1039 \f
1040 Version 2.3.2
1042 * Thread-safe interfaces for many functions that access locale data
1043 were added in version 2.3, but these features were omitted from NEWS.
1044 Many functions have variants with an `_l' suffix that take a `locale_t'
1045 object as a parameter rather than consulting the current locale.
1046 The new functions `newlocale', `duplocale', and `freelocale' in <locale.h>
1047 create and maintain `locale_t' objects. Additionally, the new function
1048 `uselocale' sets "the current locale" (as used by functions not so
1049 parameterized) set for an individual thread. These features were added
1050 in version 2.3, implemented by Ulrich Drepper and Roland McGrath.
1052 * The functions getresuid, getresgid, setresuid, and setresgid, which
1053 have long been available on Linux, are now declared in <unistd.h>
1054 and are now also available on the Hurd.
1056 * ELF thread-local storage support (TLS) now works on x86-64.
1058 * The new dynamic string token $LIB is expanded in shared library names.
1059 This normally expands to lib, but on some 64-bit platforms to lib64 instead.
1061 * Aldy Hernandez contributed complete software floating point support for
1062 PowerPC machines with no FPU.
1064 * fexecve is implemented on Linux.
1066 * The `btowc' function should work at least twice as fast due to
1067 specialized callbacks in the iconv modules. Implemented by Bruno Haible.
1069 * With approriate thread add-ons cancelable functions are now implemented
1070 in libc.so as well. No need to call the function in libpthread. This
1071 change allowed to finally disable the incorrect and expensive handling
1072 of weak definition in ld.so.
1074 * Yet more PLT entries in libc.so have been removed. We finally arrived
1075 at the bare minimum. Startup times improved appropriately.
1077 * Support for the new Linux/x86 system call interface was added. The
1078 AT_SYSINFO auxiliary vector entry is recognized and handled.
1079 \f
1080 Version 2.3
1082 * Masahide Washizawa contributed iconv modules for IBM1163 and IBM1164
1083 charsets.
1085 * iconv (the program and the interface) now accepts empty names (excluding
1086 options like //TRANSLIT) to mean "use charset of current locale".
1088 * localedef can now transliterate characters in strings which are not in
1089 the provided charmap. The information from the input locale is used.
1091 * Prelinking support was added for ELF targets. This requires additional
1092 tools and recent versions of the GNU binutils. Contributed by Jakub Jelinek.
1094 * Read-only stdio streams now use mmap to speed up operation by eliminating
1095 copying and buffer underflows. To use add 'm' to the mode string of
1096 the fopen/fdopen/freopen call. Implemented by Ulrich Drepper.
1098 * The malloc functions were completely rewritten by Wolfram Gloger based
1099 on Doug Lea's malloc-2.7.0.c.
1101 * Isamu Hasegawa contributed a completely new and POSIX-conformant
1102 implementation of regex.
1104 * Bruno Haible upgraded the iconv and locale implementation to support
1105 Unicode 3.2.
1107 * Contents of the LC_* and LANG environment variables in the CEN style are
1108 not recognized anymore. It never was used. Change by Ulrich Drepper.
1110 * The runtime (ld.so, libc, libpthread for Linux) now can handle the ELF
1111 thread-local storage (TLS) ABI on some platforms.
1112 Changes by Ulrich Drepper. SH support by Kaz Kojima.
1114 * Bruno Haible contributed iconv converters for ISO-2022-JP-3, SHIFT JIS-X0213,
1115 EUC-JISX0213, and TSCII.
1117 * New header <ifaddrs.h> with functions `getifaddrs' and `freeifaddrs':
1118 BSD-compatible interface for getting all network interface addresses.
1119 Implementation for IPv4 by Roland McGrath.
1121 * Loading of locale data is faster due to the introduction of a locale
1122 archive. Implemented by Roland McGrath and Ulrich Drepper.
1124 * Startup times are significantly reduced by not using exported functions
1125 inside the library itself. Changes by Jakub Jelinek, Roland McGrath,
1126 and Ulrich Drepper.
1128 * Steven Munroe contributed a port to PowerPC64/Linux.
1129 \f
1130 Version 2.2.6
1132 * The Hurd now uses the GNU libio implementation of stdio rather than the
1133 old GNU stdio implementation, and uses a new ABI (libc.so.0.3).
1135 * The Hurd on x86 now has the `ioperm' function and <sys/io.h> header file
1136 with the same behavior as the Linux system call of the same name.
1137 \f
1138 Version 2.2.5
1140 * Stephen Moshier implemented log2, log10, powl and cbrtl for the
1141 128-bit long double format.
1143 * Masahide Washizawa contributed iconv modules for IBM1132, IBM1133, IBM1160,
1144 IBM1161, and IBM1162 charsets.
1146 * Andreas Jaeger contributed a port to x86-64/Linux.
1148 * Peter Bruin contributed a port to PowerPC/Hurd.
1150 * libc functions using I/O streams now can handle wide-oriented streams
1151 as well.
1153 * optimizations in the dynamic linker. Binaries created by recent binutils
1154 versions start up quicker due to reduced time spent on relocations.
1156 * Support for use of gcc3 added by Jakub Jelinek and HJ Lu.
1157 \f
1158 Version 2.2.4
1160 * Stephen Moshier implemented cosh, expm1, log1p, acos, sinh, tanh,
1161 asinh, atanh, j0 for the 128-bit long double format.
1163 * Bruno Haible updated all the code handling Unicode in some form to
1164 support Unicode 3.1.
1166 * Speed of regex for single-byte locales is back to previous levels.
1167 Patch by Isamu Hasegawa.
1169 * Alpha, SPARC, and IA-64 now also using floating stacks.
1171 * Startup time of internationalized applications greatly improved through
1172 iconv cache. Use iconvconfig to generate the cache file.
1173 Contributed by Ulrich Drepper.
1175 * The IA-64 specific part of ld.so was rewritten to eliminate some pretty
1176 severe performance problems. Patch by David Mosberger.
1178 * The Hurd port got a lot more functionality like AIO, various stdio
1179 extensions, etc. Mainly done by Roland McGrath.
1181 * mtrace can now lookup symbols in shared libraries.
1182 \f
1183 Version 2.2.3
1185 * Intel's IA-64 math library is largely integrated. It provides fast and
1186 accurate implementatations for most basic and standard math functions
1187 in float, double, and long double format.
1189 * Stephen Moshier implemented j0, j1, jn, y0, y1, yn, lgamma, erf, erfc,
1190 and asin for the 96-bit long double format and asin, log, tan for the
1191 128-bit long double format.
1193 * The beginning of a last-bit accurate math library by IBM Haifa were added.
1194 The basic double functions exist today. Contributed by Abraham Ziv
1195 <ziv@il.ibm.com>, Moshe Olshansky <olshansk@il.ibm.com>, Ealan Henis
1196 <ealan@il.ibm.com>, and Anna Reitman <reitman@il.ibm.com>.
1198 * An asynchronous name lookup library was added. The interface is designed
1199 after POSIX AIO. The proposal was circulated beforehand to get comments.
1200 No negative ones came in. Implemented by Ulrich Drepper.
1202 * Port to S390/64bit contributed by Martin Schwidefsky
1203 <schwidefsky@de.ibm.com>.
1205 * David Mosberger <davidm@hpl.hp.com> implemented the setcontext family
1206 of functions for Linux/IA-64.
1208 * The RPC code is now thread safe. Threads can now use the same service
1209 of different services at the same time. Patch by Eric Norum
1210 <eric.norum@usask.ca> with some help by Ulrich Drepper.
1212 * Martin Schwidefsky <schwidefsky@de.ibm.com> implemented the setcontext
1213 family of functions for Linux/S390.
1215 * Ulrich Drepper <drepper@redhat.com> implemented the setcontext family
1216 of functions for Linux/x86.
1218 * Port to Linux/CRIS contributed by Axis Communications.
1219 \f
1220 Version 2.2.2
1222 * Lots of headers were cleaned up. Using the tool in the conform/ subdir
1223 we can now check for namespace violations and missing declarations. The
1224 result is that almost all headers are now Unix-compliant (as defined in
1225 the upcoming XPG6). The negative side is that some programs might need
1226 corrections, too, if they depend on the incorrect form of the headers in
1227 previous versions which defined too many symbols and included too many
1228 other headers.
1230 * regex now handles multibyte character sets correctly.
1231 Contributed by Isamu Hasegawa <isamu@yamato.ibm.com>.
1233 * iconv (the program) does now conform to the upcoming XPG6 and handles
1234 charmaps. Instead of the charset names the path of charmaps can be
1235 provided and the conversion happens based on this data.
1236 Contributed by Ulrich Drepper.
1238 * The locale program now provides detailed information about the installed
1239 locales. While
1241 locale -a
1243 only lists the names of the supported locales
1245 locale -a --verbose
1247 provides details such as country, language, and codeset name.
1248 Contributed by Ulrich Drepper.
1249 \f
1250 Version 2.2.1
1252 * The gencat program now parses the input file according to the charset
1253 selected by the LC_CTYPE category. This is important for stateful
1254 character sets. To make generating catalogs easier there is a way
1255 to overwrite the charset selected by the locale: before the first
1256 message or $ quote line the catalog can contain a line like
1258 $ codeset=ISO-8859-2
1260 to select the charset (ISO-8859-2 in this case).
1262 Implemented by Shinya Hanataka and Ulrich Drepper.
1264 * New codeset conversion modules: IBM-922 (Estonia PC codeset),
1265 IBM-1124 (Ukraine PC codeset), IBM-1129 (Vietnamese PC codeset).
1266 Contributed by Masahide Washizawa <washi@jp.ibm.com>.
1268 * Optimized string functions for Alpha ev6 and ev67 by Richard Henderson
1269 <rth@redhat.com> and Rick Gorton <rick.gorton@alpha-processor.com>.
1271 * The LANGUAGE environment variable is now ignored unless the locale is
1272 changed from the default "C" locale.
1274 * The usual bug fixes.
1275 \f
1276 Version 2.2
1278 * Greg McGary added runtime support for bounds checking using gcc's
1279 new -fbounded-pointers option. ix86 target is complete. PowerPC
1280 is in progress.
1282 * Thorsten Kukuk added secure mode support to nscd.
1284 * The Berkeley db libraries have been removed.
1286 Related, the nss_db module is now in a separate package since it
1287 obviously requires a database library being available.
1289 * Wide character I/O streams implemented by Ulrich Drepper.
1291 * Functions from the extended socket API added by Ulrich Drepper.
1293 * Functions feenableexcept and fedisableexcept to control the
1294 behaviour of individual exceptions have been added by Andreas Jaeger.
1296 * ldconfig program added by Andreas Jaeger and Jakub Jelinek.
1298 * The resolver code has been updated from bind 8.2.3-T5B which supports
1299 threads. The integration was done by Andreas Jaeger, Adam D. Bradley,
1300 and Mark Kettenis.
1302 This change could in some situations effect backward compatibility. Since
1303 now `_res' is a thread-local instead of a global variable, modifying it
1304 in one thread does not have any effect in other threads.
1306 The resolver library was also extended to allow IPv6 as the transport
1307 protocol for the requests. This work was done by Stig Venaas.
1309 * Compatibility code for K&R C compilers has been removed from the
1310 header files. A ISO C compiler is needed to use the library
1311 (conforming to either C89 or C99 standard).
1313 * Complete rewrite of the localedef program to support multibyte character
1314 sets. Implement handling of ISO 14651 and ISO 14652. Rewrite strcoll,
1315 strxfrm, wcscoll, and wcsxfrm functions. Make isw*() functions work.
1316 Implemented by Ulrich Drepper.
1318 Bruno Haible significantly improved the generation and use of the data
1319 structures for the wide character tables.
1321 * Plural handling in gettext implemented by Ulrich Drepper.
1323 * The utmp daemon has been removed.
1325 * The port to MIPS-Linux has been finished by Andreas Jaeger.
1327 * A port to Hitachi SH3 and SH4 has been contributed by Kazumoto Kojima
1328 and Yutaka Niibe.
1330 * POSIX clocks and timers implemented by Kaz Kylheku and Ulrich Drepper.
1332 * POSIX barriers implemented by Kaz Kylheku.
1334 * POSIX spawn function family implemented by Ulrich Drepper.
1336 * POSIX spinlocks are now available.
1338 * Timed wait functions for mutex, rwlock, and semaphores are implemented.
1340 * the configure option --enable-kernel=X.Y.Z allows to strip out
1341 compatibility for kernel versions before X.Y.Z. This is currently only
1342 implemented for Linux.
1344 * the sockaddr_in6 structure changed. The IPv6 working group added a new
1345 field sin6_scope_id. This means that all programs using IPv6 should be
1346 recompiled. Don't expect binary compatibility with previous glibc
1347 versions.
1349 * various conversion modules for IBM character sets contributed by
1350 Masahide Washizawa.
1352 * IA-64 port by Jes Sorensen and HJ Lu.
1353 \f
1354 Version 2.1.3
1356 * bug fixes
1358 \f
1359 Version 2.1.2
1361 * bug fixes
1363 \f
1364 Version 2.1.1
1366 * New ISO C 9x function _Exit, imaxabs, and imaxdiv are added.
1368 * New xdr functions are added; some rpc functions are now 64bit clean.
1370 * Fixed a number of bugs and memory leaks (especially in NIS+ code).
1372 * Fixed known incompatibilities with glibc 2.0.
1374 * New functions lock64, strchrnul, rawmemchr, getutmp and getutmpx.
1376 * Optimized a number of functions (especially the ELF dynamic loader).
1378 * Update timezone data files.
1380 * lots of charmaps corrections
1382 * some new locale definitions and charmaps
1384 \f
1385 Version 2.1
1387 * Richard Henderson corrected size of struct timeval on Linux/Alpha to
1388 conform to POSIX member type requirements. Symbol versions have been
1389 adjusted as needed within the library, and for direct use by applications,
1390 but there is potential for problems if third-party libraries use
1391 struct timeval as part of their interface. This does not present
1392 a problem for X and other "essential" system libraries.
1394 * An additional locale model to support C++ Standard Library locale
1395 model and probably more was implemented by Ulrich Drepper.
1397 * Eric Youngdale and Ulrich Drepper implemented versioning of objects on
1398 symbol level.
1400 * Miles Bader provided the `argp' function family to support hierachical
1401 command line argument parsing, layered on top of getopt.
1403 * strtod accepts new hexadecimal floating-point format from ISO C 9X.
1405 * printf has two new specifiers %a and %A to print hexadecimal flaoting-point
1406 numbers.
1408 * scanf recognizes the %a and %A format for scanning floating point numbers.
1410 * the new headers <stdint.h> and <inttypes.h> from ISO C 9X provides
1411 information and interfaces for the available integer types.
1413 * about 130 new math functions were added to implement the ISO C9x math
1414 library.
1416 * the new header <complex.h> contains definitions of the complex math
1417 functions from ISO C 9X.
1419 * the new header <tgmath.h> defines generic macros to use complex or
1420 real valued functions.
1422 * Thorsten Kukuk provided an implementation for NIS+, securelevel 0, 1 and 2.
1424 * Andreas Jaeger provided a test suite for the math library.
1426 * Mark Kettenis implemented the utmpx interface and an utmp daemon.
1428 * Ulrich Drepper added character set conversion functions (iconv).
1430 * Optimized string functions have been added.
1432 * The localedata addon is now part of glibc.
1434 * An implementation of profiling shared libraries was added by Ulrich Drepper.
1436 * Thorsten Kukuk and Ulrich Drepper provided an implementation for a caching
1437 daemon for NSS (nscd).
1439 Missing a better place here are some numbers on improvements. Under
1440 Linux 2.1.125 un-tar-ing the kernel sources takes
1442 user system wall
1444 using local files 12.19s 6.88s 22.91s
1446 using NIS 13.92s 8.91s 26.34s
1448 using NIS & nscd 10.37s 7.34s 25.30s
1450 using NIS+ 27.57s 30.37s 640.46s
1452 using NIS+ & nscd 10.25s 7.83s 26.51s
1454 using NIS & old nscd [1] 13.83s 8.32s 29.60s
1456 Keep in mind that non-namelookup related operations dominate above times.
1457 It was just a common complain that using NIS+ unpacking the kernel is
1458 horribly slow.
1460 [1] The old nscd implementation is not available anymore since it was
1461 distributed with glibc up to version 2.0.98 and thus is now replaced.
1463 * Tim Waugh provided an implementation of the POSIX.2 wordexp function family.
1465 * Mark Kettenis provided a Hesiod NSS module.
1467 * The ELF dynamic loader knows how to process dynamic string tokens ($ORIGIN
1468 and $PLATFORM) in RPATHs and similar strings (Ulrich Drepper).
1470 * rcmd can now handle netgroups (Dick Streefland).
1472 * A port to the ARM was contributed by Phil Blundell, Pat Beirne and Scott
1473 Bambrough.
1475 * Support for the IPv6 protocol has been added to the socket API, as per the
1476 latest draft standards.
1478 * Support for Linux 2.2 has been added.
1480 * Interface changes relative to the latest 2.0.x release:
1481 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1482 addseverity NEW: Unix98
1483 alphasort64 NEW: LFS
1484 argp_err_exit_status NEW: argp, GNU ext
1485 argp_error NEW: argp, GNU ext
1486 argp_failure NEW: argp, GNU ext
1487 argp_help NEW: argp, GNU ext
1488 argp_parse NEW: argp, GNU ext
1489 argp_program_bug_address NEW: argp, GNU ext
1490 argp_program_version NEW: argp, GNU ext
1491 argp_program_version_hook NEW: argp, GNU ext
1492 argp_state_help NEW: argp, GNU ext
1493 argp_usage NEW: argp, GNU ext
1494 authdes_create NEW: Secure RPC
1495 authdes_getucred NEW: Secure RPC
1496 authdes_pk_create NEW: Secure RPC
1497 backtrace NEW: GNU ext.
1498 backtrace_symbols NEW: GNU ext.
1499 backtrace_symbols_fd NEW: GNU ext.
1500 cacos NEW: ISO C 9x
1501 cacosf NEW: ISO C 9x
1502 cacosh NEW: ISO C 9x
1503 cacoshf NEW: ISO C 9x
1504 cacoshl NEW: ISO C 9x
1505 cacosl NEW: ISO C 9x
1506 capget NEW: kernel
1507 capset NEW: kernel
1508 carg NEW: ISO C 9x
1509 cargf NEW: ISO C 9x
1510 cargl NEW: ISO C 9x
1511 casin NEW: ISO C 9x
1512 casinf NEW: ISO C 9x
1513 casinh NEW: ISO C 9x
1514 casinhf NEW: ISO C 9x
1515 casinhl NEW: ISO C 9x
1516 casinl NEW: ISO C 9x
1517 catan NEW: ISO C 9x
1518 catanf NEW: ISO C 9x
1519 catanh NEW: ISO C 9x
1520 catanhf NEW: ISO C 9x
1521 catanhl NEW: ISO C 9x
1522 catanl NEW: ISO C 9x
1523 cbc_crypt NEW: Secure RPC
1524 ccos NEW: ISO C 9x
1525 ccosf NEW: ISO C 9x
1526 ccosh NEW: ISO C 9x
1527 ccoshf NEW: ISO C 9x
1528 ccoshl NEW: ISO C 9x
1529 ccosl NEW: ISO C 9x
1530 cexp NEW: ISO C 9x
1531 cexpf NEW: ISO C 9x
1532 cexpl NEW: ISO C 9x
1533 cimag NEW: ISO C 9x
1534 cimagf NEW: ISO C 9x
1535 cimagl NEW: ISO C 9x
1536 clearerr_locked REMOVED
1537 clntunix_create NEW: sunrpc ext
1538 clog NEW: ISO C 9x
1539 clog10 NEW: ISO C 9x
1540 clog10f NEW: ISO C 9x
1541 clog10l NEW: ISO C 9x
1542 clogf NEW: ISO C 9x
1543 clogl NEW: ISO C 9x
1544 conj NEW: ISO C 9x
1545 conjf NEW: ISO C 9x
1546 conjl NEW: ISO C 9x
1547 cpow NEW: ISO C 9x
1548 cpowf NEW: ISO C 9x
1549 cpowl NEW: ISO C 9x
1550 cproj NEW: ISO C 9x
1551 cprojf NEW: ISO C 9x
1552 cprojl NEW: ISO C 9x
1553 creal NEW: ISO C 9x
1554 crealf NEW: ISO C 9x
1555 creall NEW: ISO C 9x
1556 creat64 NEW: LFS
1557 csin NEW: ISO C 9x
1558 csinf NEW: ISO C 9x
1559 csinh NEW: ISO C 9x
1560 csinhf NEW: ISO C 9x
1561 csinhl NEW: ISO C 9x
1562 csinl NEW: ISO C 9x
1563 csqrt NEW: ISO C 9x
1564 csqrtf NEW: ISO C 9x
1565 csqrtl NEW: ISO C 9x
1566 ctan NEW: ISO C 9x
1567 ctanf NEW: ISO C 9x
1568 ctanh NEW: ISO C 9x
1569 ctanhf NEW: ISO C 9x
1570 ctanhl NEW: ISO C 9x
1571 ctanl NEW: ISO C 9x
1572 des_setparity NEW: Secure RPC
1573 ecb_crypt NEW: Secure RPC
1574 endutxent NEW: Unix98
1575 exp10 NEW: ISO C 9x
1576 exp10f NEW: ISO C 9x
1577 exp10l NEW: ISO C 9x
1578 exp2 NEW: ISO C 9x
1579 exp2f NEW: ISO C 9x
1580 exp2l NEW: ISO C 9x
1581 fattach NEW: STREAMS
1582 fdetach NEW: STREAMS
1583 fdim NEW: ISO C 9x
1584 fdimf NEW: ISO C 9x
1585 fdiml NEW: ISO C 9x
1586 feclearexcept NEW: ISO C 9x
1587 fegetenv NEW: ISO C 9x
1588 fegetexceptflag NEW: ISO C 9x
1589 fegetround NEW: ISO C 9x
1590 feholdexcept NEW: ISO C 9x
1591 feof_locked REMOVED
1592 feraiseexcept NEW: ISO C 9x
1593 ferror_locked REMOVED
1594 fesetenv NEW: ISO C 9x
1595 fesetexceptflag NEW: ISO C 9x
1596 fesetround NEW: ISO C 9x
1597 fetestexcept NEW: ISO C 9x
1598 feupdateenv NEW: ISO C 9x
1599 fflush_locked REMOVED
1600 ffsl NEW: GNU ext.
1601 ffsll NEW: GNU ext.
1602 fgetpos64 NEW: LFS
1603 fgets_unlocked NEW: GNU ext.
1604 fileno_locked REMOVED
1605 fma NEW: ISO C 9x
1606 fmaf NEW: ISO C 9x
1607 fmal NEW: ISO C 9x
1608 fmax NEW: ISO C 9x
1609 fmaxf NEW: ISO C 9x
1610 fmaxl NEW: ISO C 9x
1611 fmin NEW: ISO C 9x
1612 fminf NEW: ISO C 9x
1613 fminl NEW: ISO C 9x
1614 fmtmsg NEW: Unix98
1615 fopen64 NEW: LFS
1616 fputc_locked REMOVED
1617 fputs_unlocked NEW: GNU ext.
1618 fread_unlocked NEW: GNU ext.
1619 freopen64 NEW: LFS
1620 fseeko NEW: Unix98
1621 fsetpos64 NEW: LFS
1622 fstatfs64 NEW: LFS
1623 fstatvfs NEW: Unix98
1624 fstatvfs64 NEW: LFS
1625 ftello NEW: Unix98
1626 ftello64 NEW: LFS
1627 ftruncate64 NEW: LFS
1628 ftw64 NEW: LFS
1629 fwrite_unlocked NEW: GNU ext.
1630 gai_strerror NEW: IPv6
1631 gamma_r REMOVED
1632 gammaf_r REMOVED
1633 gammal_r REMOVED
1634 getchar_locked REMOVED
1635 getdate NEW: Unix98
1636 getdate_err NEW: Unix98
1637 getdate_r NEW: GNU ext.
1638 getmsg NEW: STREAMS
1639 getnameinfo NEW: IPv6
1640 getnetname NEW: Secure RPC
1641 getpmsg NEW: STREAMS
1642 getpt NEW: Unix98 PTY
1643 getrlimit64 NEW: LFS
1644 getutxent NEW: Unix98
1645 getutxid NEW: Unix98
1646 getutxline NEW: Unix98
1647 glob64 NEW: GNU ext.
1648 globfree64 NEW: GNU ext.
1649 gnu_get_libc_release NEW: GNU ext.
1650 gnu_get_libc_version NEW: GNU ext.
1651 grantpt NEW: Unix98 PTY
1652 host2netname NEW: Secure RPC
1653 iconv NEW: iconv
1654 iconv_close NEW: iconv
1655 iconv_open NEW: iconv
1656 if_freenameindex NEW: IPv6
1657 if_indextoname NEW: IPv6
1658 if_nameindex NEW: IPv6
1659 if_nametoindex NEW: IPv6
1660 in6addr_any NEW: IPv6
1661 in6addr_loopback NEW: IPv6
1662 inet6_isipv4mapped NEW: IPv6
1663 isastream NEW: STREAMS
1664 iswblank NEW: GNU ext.
1665 key_decryptsession NEW: Secure RPC
1666 key_decryptsession_pk NEW: Secure RPC
1667 key_encryptsession NEW: Secure RPC
1668 key_encryptsession_pk NEW: Secure RPC
1669 key_gendes NEW: Secure RPC
1670 key_get_conv NEW: Secure RPC
1671 key_secretkey_is_set NEW: Secure RPC
1672 key_setnet NEW: Secure RPC
1673 key_setsecret NEW: Secure RPC
1674 llrint NEW: ISO C 9x
1675 llrintf NEW: ISO C 9x
1676 llrintl NEW: ISO C 9x
1677 llround NEW: ISO C 9x
1678 llroundf NEW: ISO C 9x
1679 llroundl NEW: ISO C 9x
1680 log2 NEW: ISO C 9x
1681 log2f NEW: ISO C 9x
1682 log2l NEW: ISO C 9x
1683 lrint NEW: ISO C 9x
1684 lrintf NEW: ISO C 9x
1685 lrintl NEW: ISO C 9x
1686 lround NEW: ISO C 9x
1687 lroundf NEW: ISO C 9x
1688 lroundl NEW: ISO C 9x
1689 lseek64 NEW: LFS
1690 makecontext NEW: Unix98
1691 mempcpy NEW: GNU ext.
1692 mmap64 NEW: LFS
1693 moncontrol REMOVED
1694 modify_ldt NEW: kernel
1695 nan NEW: ISO C 9x
1696 nanf NEW: ISO C 9x
1697 nanl NEW: ISO C 9x
1698 nearbyint NEW: ISO C 9x
1699 nearbyintf NEW: ISO C 9x
1700 nearbyintl NEW: ISO C 9x
1701 netname2host NEW: Secure RPC
1702 netname2user NEW: Secure RPC
1703 nexttoward NEW: ISO C 9x
1704 nexttowardf NEW: ISO C 9x
1705 nexttowardl NEW: ISO C 9x
1706 nftw NEW: Unix98
1707 nftw64 NEW: LFS
1708 open64 NEW: LFS
1709 passwd2des NEW: Secure RPC
1710 pow10 NEW: GNU ext.
1711 pow10f NEW: GNU ext.
1712 pow10l NEW: GNU ext.
1713 pread NEW: Unix98
1714 pread64 NEW: LFS
1715 printf_size NEW: GNU ext.
1716 printf_size_info NEW: GNU ext.
1717 profil_counter REMOVED
1718 pthread_mutexattr_getkind_np REPLACED
1719 pthread_mutexattr_setkind_np REPLACED
1720 ptsname NEW: Unix98 PTY
1721 ptsname_r NEW: Unix98 PTY
1722 putc_locked REMOVED
1723 putchar_locked REMOVED
1724 putgrent NEW: GNU ext.
1725 putmsg NEW: STREAMS
1726 putpmsg NEW: STREAMS
1727 pututxline NEW: Unix98
1728 pwrite NEW: Unix98
1729 pwrite64 NEW: LFS
1730 readdir64 NEW: LFS
1731 readdir64_r NEW: LFS
1732 remquo NEW: ISO C 9x
1733 remquof NEW: ISO C 9x
1734 remquol NEW: ISO C 9x
1735 round NEW: ISO C 9x
1736 roundf NEW: ISO C 9x
1737 roundl NEW: ISO C 9x
1738 rtime NEW: GNU ext.
1739 scalbln NEW: ISO C 9x
1740 scalblnf NEW: ISO C 9x
1741 scalblnl NEW: ISO C 9x
1742 scandir64 NEW: LFS
1743 sendfile NEW: kernel
1744 setcontext NEW: Unix98
1745 setrlimit64 NEW: LFS
1746 setutxent NEW: Unix98
1747 sighold NEW: Unix98
1748 sigignore NEW: Unix98
1749 sigqueue NEW: POSIX.1b
1750 sigrelse NEW: Unix98
1751 sigset NEW: POSIX.1b
1752 sigtimedwait NEW: POSIX.1b
1753 sigwaitinfo NEW: POSIX.1b
1754 sincos NEW: GNU ext.
1755 sincosf NEW: GNU ext.
1756 sincosl NEW: GNU ext.
1757 statfs64 NEW: LFS
1758 statvfs NEW: Unix98
1759 statvfs64 NEW: LFS
1760 strcasestr NEW: GNU ext.
1761 strtoimax NEW: ISO C 9x
1762 strtoumax NEW: ISO C 9x
1763 strverscmp NEW: GNU ext.
1764 svcauthdes_stats NEW: Secure RPC
1765 svcunix_create NEW: sunrpc etx
1766 svcunixfd_create NEW: sunrpc ext
1767 swapcontext NEW: Unix98
1768 tcgetsid NEW: Unix98 PTY
1769 tdestroy NEW: GNU ext.
1770 tgamma NEW: ISO C 9x
1771 tgammaf NEW: ISO C 9x
1772 tgammal NEW: ISO C 9x
1773 tmpfile64 NEW: LFS
1774 trunc NEW: ISO C 9x
1775 truncate64 NEW: LFS
1776 truncf NEW: ISO C 9x
1777 truncl NEW: ISO C 9x
1778 umount2 NEW: kernel
1779 unlockpt NEW: Unix98 PTY
1780 updwtmpx NEW: Unix98
1781 user2netname NEW: Secure RPC
1782 utmpxname NEW: Unix98
1783 versionsort NEW: GNU ext.
1784 versionsort64 NEW: GNU ext.
1785 waitid NEW: Unix98
1786 wcscasecmp NEW: GNU ext.
1787 wcsncasecmp NEW: GNU ext.
1788 wcsnlen NEW: GNU ext.
1789 wcstoimax NEW: ISO C 9x
1790 wcstoll NEW: ISO C 9x
1791 wcstoull NEW: ISO C 9x
1792 wcstoumax NEW: ISO C 9x
1793 wcswcs NEW: Unix98
1794 wordexp NEW: POSIX.2
1795 wordfree NEW: POSIX.2
1796 write_profiling REMOVED
1797 xdecrypt NEW: Secure RPC
1798 xdr_authdes_cred NEW: Secure RPC
1799 xdr_authdes_verf NEW: Secure RPC
1800 xdr_cryptkeyarg NEW: Secure RPC
1801 xdr_cryptkeyarg2 NEW: Secure RPC
1802 xdr_cryptkeyres NEW: Secure RPC
1803 xdr_getcredres NEW: Secure RPC
1804 xdr_key_netstarg NEW: Secure RPC
1805 xdr_key_netstres NEW: Secure RPC
1806 xdr_keybuf NEW: Secure RPC
1807 xdr_keystatus NEW: Secure RPC
1808 xdr_netnamestr NEW: Secure RPC
1809 xdr_sizeof NEW: Secure RPC
1810 xdr_unixcred NEW: sunrpc ext
1811 xencrypt NEW: Secure RPC
1812 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1813 \f
1814 Version 2.0.6
1816 * more bug fixes
1818 \f
1819 Version 2.0.5
1821 * more bug fixes
1823 * inet_ntoa is thread-safe
1825 * updwtmp is moved from libutil to libc
1827 * rewrite of cbrt function
1829 * update of timezone data
1830 \f
1831 Version 2.0.4
1833 * more bug fixes
1834 \f
1835 Version 2.0.3
1837 * more bug fixes
1838 \f
1839 Version 2.0.2
1841 * more bug fixes
1843 * add atoll function
1845 * fix complex problems in Berkeley DB code
1847 * fix math functions
1848 \f
1849 Version 2.0.1
1851 * fixed lots of header problems (especially Linux/GNU specific)
1853 * dynamic loader preserves all registers
1855 * Roland McGrath provided support for handling of auxiliary objects in
1856 the ELF dynamic loader.
1858 * support for parallel builds is improved
1859 \f
1860 Version 2.0
1862 * GNU extensions are no longer declared by default. To enable them you
1863 must define the macro `_GNU_SOURCE' in your program or compile with
1864 `-D_GNU_SOURCE'.
1866 * The library has changed from using GNU ld symbol aliases to using weak
1867 symbols where available. The ELF object file format supports weak
1868 symbols; GNU ld also supports weak symbols in the a.out format. (There
1869 is also now support for other GNU ld extensions in ELF. Use the
1870 `--with-elf' option to configure to indicate you have ELF, and
1871 `--with-gnu-ld' if using GNU ld.) This change resulted in the deletion
1872 of many files which contained only symbol aliases, reducing the size of
1873 the source and the compiled library; many other files were renamed to
1874 less cryptic names previously occupied by the symbol alias files.
1875 There is a new header file <elf.h> for programs which operate on
1876 files in the ELF format.
1878 * Converted to Autoconf version 2, so `configure' has more options.
1879 Run `configure --help' to see the details.
1881 * The library can now be configured to build profiling, highly-optimized
1882 (but undebuggable), and/or shared libraries (ELF with GNU ld only). The
1883 `--enable-profile', `--enable-omitfp', and `--enable-shared' options to
1884 `configure' enable building these extra libraries. The shared library is
1885 built by default when using both ELF and GNU ld. When shared libraries
1886 are enabled, the new library `-ldl' is available for arbitrary run-time
1887 loading of shared objects; its interface is defined in <dlfcn.h>. The
1888 new header file <link.h> gives access to the internals of the run-time
1889 dynamic linker, `ld.so'. The shell script `ldd' is similar to the
1890 application of same name on other systems and it provides information
1891 about dynamically linked binaries.
1893 * The C library now provides the run-time support code for profiling
1894 executables compiled with `-pg'. Programs can control the profiling code
1895 through the interface in <sys/gmon.h>. The `gmon.out' files written by
1896 the GNU C library can be read only by GNU `gprof' (from GNU binutils);
1897 the support for this file format was contributed by David Mosberger-Tang.
1899 * The math code has been replaced with a math library based on fdlibm from
1900 Sun, and modified by JT Conklin and Ulrich Drepper with i387 support, by
1901 Ian Taylor with `float' functions and by Ulrich Drepper with `long double'
1902 functions. The math functions now reside in a separate library, so
1903 programs using them will need to use `-lm' their linking commands.
1905 * John C. Bowman contributed optimized ix87 assembler inline functions.
1907 * Ulrich Drepper has contributed support for an `/etc/nsswitch.conf'
1908 mechanism similar to that found in Solaris 2. This is now used for the
1909 group, passwd, hosts, networks, services, protocols, rpc, ethers,
1910 shadow, netgroup, publickey, and alias databases. The `nsswitch.conf'
1911 file controls what services are used for each individual database. This
1912 works by loading shared libraries with names specified in `nsswitch.conf',
1913 so service modules can be changed or added at any time without even
1914 relinking any program. Currently there are the file, db, and NIS based
1915 NSS services available.
1917 * The new functions `strtoq' and `strtouq' parse integer values from
1918 strings, like `strtol' and `strtoul', but they return `long long int' and
1919 `unsigned long long int' values, respectively (64-bit quantities).
1921 * The new functions `strtof' and `strtold' parse floating-point values from
1922 strings, like `strtod', but they return `float' and `long double' values,
1923 respectively (on some machines `double' and `long double' are the same).
1925 * Ulrich Drepper has contributed new implementations of the floating-point
1926 printing and reading code used in the `printf' family of functions and
1927 `strtod', `strtof', and `strtold'. These new functions are perfectly
1928 accurate, and much faster than the old ones.
1930 * The implementation of the POSIX locale model was completely rewritten by
1931 Ulrich Drepper. This includes the new programs `localedef' and `locale'
1932 to compile the POSIX locale definition.
1934 * The former dummy implementations of the strcoll and strxfrm function are
1935 now replaced by fully functional code contributed by Ulrich Drepper. The
1936 collation information comes from the POSIX locale definitions.
1938 * The new header <langinfo.h> defines an interface for accessing
1939 various locale-dependent data (using the locale chosen with `setlocale').
1941 * Ulrich Drepper has contributed a new suite of functions for operation on
1942 wide-character and multibyte-character strings, in <wchar.h>;
1943 and classification and case conversion of wide characters, in <wctype.h>.
1944 These new functions are conforming to the ISO C, Amendement 1 specification.
1946 * There is now a second implementation of the standard I/O library available.
1947 It comes from GNU libg++ as was written by Per Bothner, heavily modified
1948 by Hongjiu Lu and made thread safe by Ulrich Drepper.
1950 * You can now use positional parameter specifications in format strings
1951 for the `printf' and `scanf' families of functions. For example,
1952 `printf ("Number %2$d, Mr %1$s\n", "Jones", 6);'' prints
1953 ``Number 6, Mr Jones''. This is mainly useful when providing different
1954 format strings for different languages, whose grammars may dictate
1955 different orderings of the values being printed. To support this
1956 feature, the interface for `register_printf_handler' has changed; see
1957 the header file <printf.h> for details.
1959 * The `printf' and `scanf' families of functions now understand a new
1960 formatting flag for numeric conversions: the ' flag (e.g. %'d or %'f) says
1961 to group numbers as indicated by the locale; for `scanf' and friends, this
1962 says to accept as valid only a number with all the proper grouping
1963 separators in the right places. In the default "C" locale, numbers are
1964 not grouped; but locales for specific countries will define the usual
1965 conventions (i.e. separate thousands with `,' in the US locale).
1967 * The pgrp functions have been regularized, slightly incompatibly but much
1968 less confusingly. The core functions are now `getpgid' and `setpgid',
1969 which take arguments for the PID to operate on; the POSIX.1 `getpgrp' (no
1970 argument) and BSD `setpgrp' (identical to `setpgid') functions are
1971 provided for compatibility. There is no longer an incompatible `getpgrp'
1972 with an argument declared under _BSD_SOURCE; no BSD code uses it.
1974 * The new header file <fts.h> and suite of functions simplify programs that
1975 operate on directory trees. This code comes from 4.4 BSD.
1977 * The resolver code has been updated from the BIND 4.9.5-P1 release.
1978 Parts of the code were heavily modified by Ulrich Drepper to fit in the
1979 NSS scheme used in glibc.
1981 * There is a new malloc debugging hook `__memalign_hook'.
1983 * There are new typedefs `ushort' for `unsigned short int' and `uint' for
1984 `unsigned int' in <sys/types.h>. These are for compatibility only and
1985 their use is discouraged.
1987 * The `-lmcheck' library to enable standard malloc debugging hooks is now
1988 done differently, so that it works even without GNU ld.
1990 * New function `euidaccess' checks allowed access to a file like `access',
1991 but using the effective IDs instead of the real IDs.
1993 * The time zone data files have been updated for the latest and greatest
1994 local time conventions of the countries of the world.
1996 * The new function `dirfd' extracts the file descriptor used by a DIR stream;
1997 see <dirent.h>.
1999 * The new functions `ecvt', `fcvt', and `gcvt' provide an obsolete interface
2000 for formatting floating-point numbers. They are provided only for
2001 compatibility; new programs should use `sprintf' instead. There are
2002 also equivalent function for the `long double' floating-point type and
2003 all functions also exist in a reentrant form.
2005 * The new auxiliary library `-lutil' from 4.4 BSD contains various
2006 functions for maintaining the login-record files (primarily of use to
2007 system programs such as `login'), and convenient functions for
2008 allocating and initializing a pseudo-terminal (pty) device.
2010 * Ulrich Drepper has contributed new support for System V style
2011 shared memory and IPC on systems that support it.
2013 * Ulrich Drepper has contributed several miscellaneous new functions found
2014 in System V: The `hsearch' family of functions provide an effective
2015 implementation of hash tables; `a64l' and `l64a' provide a very simple
2016 binary to ASCII mapping; `drand48' and friends provide a 48-bit random
2017 number generator.
2019 * Ulrich Drepper has contributed new reentrant counterparts for the
2020 `random' and `hsearch' families of functions; `random_r', `hsearch_r', etc.
2022 * Ulrich Drepper has contributed new, highly-optimized versions of several
2023 string functions for the i486/Pentium family of processors.
2025 * Ulrich Drepper has updated the Linux-specific code, based largely
2026 on work done in Hongjiu Lu's version of GNU libc for Linux.
2027 The GNU library now supports Linux versions 2.0.10 and later,
2028 using the ELF object file format (i[3456]86-*-linux).
2030 * Andreas Schwab has ported the C library to Linux/m68k (m68k-*-linux).
2032 * David Mosberger-Tang and Richard Henderson have ported the C library
2033 to Linux/Alpha (alpha-*-linux). Richard Henderson contributed the
2034 dynamic linking support for ELF/Alpha.
2036 * Richard Henderson contributed several Alpha optimized assembler function
2037 for arithmetic and string handling.
2039 * Ulrich Drepper has contributed a new set of message catalog functions to
2040 support multiple languages using the <libintl.h> interface, for use with
2041 his new package GNU gettext. Translation volunteers have contributed
2042 catalogs of the library's messages in Spanish, German, and Korean.
2044 * For compatibility with XPG4, Ulrich Drepper has contributed the `gencat'
2045 program and the `catgets' function for reading the catalog files it
2046 creates. (The <libintl.h> interface is preferred; we include the
2047 <nl_types.h> interface using `catgets' only for source compatibility with
2048 programs already written to use it.)
2050 * New header file <values.h> gives SVID-compatible names for <limits.h>
2051 constants.
2053 * Various new macros, declarations, and small header files for compatibility
2054 with 4.4 BSD.
2056 * New function `group_member' is a convenient way to check if a process has
2057 a given effective group ID.
2059 * When using GCC 2.7 and later, the socket functions are now declared in a
2060 special way so that passing an argument of type `struct sockaddr_in *',
2061 `struct sockaddr_ns *', or `struct sockaddr_un *' instead of the generic
2062 `struct sockaddr *' type, does not generate a type-clash warning.
2064 * New function `error' declared in header file <error.h> is a convenient
2065 function for printing error messages and optionally exiting; this is the
2066 canonical function used in GNU programs. The new functions `err', `warn',
2067 and friends in header file <err.h> are the canonical 4.4 BSD interface for
2068 doing the same thing.
2070 * The <glob.h> interface has several new flags from 4.4 BSD that extend the
2071 POSIX.2 `glob' function to do ~ and {...} expansion.
2073 * New function `unsetenv' complements `setenv' for compatibility with 4.4 BSD.
2074 `clearenv' which is used in POSIX.9 is also available.
2076 * New function `getsid' returns session ID number on systems that support it.
2078 * We have incorporated the 4.4 BSD `db' library (version 1.85). New header
2079 files <db.h> and <mpool.h> provide a rich set of functions for several
2080 types of simple databases stored in memory and in files, and <ndbm.h> is
2081 an old `ndbm'-compatible interface using the `db' functions. Link with
2082 `-ldb' to get these functions.
2084 * New macro `strdupa' copies a string like `strdup', but uses local stack
2085 space from `alloca' instead of dynamic heap space from `malloc'.
2087 * New function `strnlen' is like `strlen' but searches only a given maximum
2088 number of characters for the null terminator. `stpncpy', `strndup' and
2089 `strndupa' are similar variants for the `stpcpy', `strdup' and `strdupa'
2090 function.
2092 * New function `statfs' in header <sys/statfs.h>.
2094 * The new <argz.h> and <envz.h> interfaces contributed by Miles Bader
2095 provide convenient functions for operating on blocks of null-terminated
2096 strings.
2098 * A new suite of functions in <utmp.h> handle all the details of reading
2099 and writing the utmp file.
2101 * An implementation of the NIS/YP(tm) based NSS service was contributed by
2102 Thorsten Kukuk.
2104 * Paul Eggert and Ulrich Drepper modified the `strftime' function to be
2105 completely POSIX compliant and also implemented the extended functionality
2106 to handle alternate digit representation and alternate era date formats.
2108 * Ulrich Drepper provided an implementation of the `strptime' function
2109 defined in XPG4.2 which transforms a string into a `struct tm' value.
2111 * Paul Eggert provided the tzselect shell script as part of the timezone
2112 code. The shell script makes it easy to select the correct timezone
2113 specification.
2115 * The implementation of the malloc family of functions is completely replaced
2116 by a new implementation by Doug Lea with many improvements by Wolfram Gloger.
2117 The implementation uses the mmap function (if available) and it is
2118 optimized for the use in multi threaded programs.
2120 * Ulrich Drepper contributed a MD5 "encryption" for the crypt family of
2121 functions. This new functionality is usable by specifying a special
2122 salt string and it is compatible with implementation on *BSD systems.
2124 * Lots of functions from the XPG4.2 standard were added by Ulrich Drepper:
2125 `getsubopt' to handle second level command line options, `bsd_signal'
2126 to access BSD style `signal' functionality, the obsolete `regexp' style
2127 expression matcher.
2129 * the `lchown' function is available on system which support this
2130 functionality.
2132 * The implementation of the shadow password handling function was contributed
2133 by Ulrich Drepper.
2135 * David Mosberger-Tang changed the SunRPC implementation to be 64bit safe.
2137 * POSIX.1g support was added. The <sys/select.h> header is available,
2138 `isfdtype' and `pselect' are implemented. Craig Metz contributed an
2139 implementation of `getaddrinfo'.
2140 \f
2141 Version 1.09
2143 * For cross-compilation you should now set `BUILD_CC' instead of `HOST_CC'.
2145 * New header file <fstab.h> and new functions `getfsspec', `getfsent' and
2146 friends, for parsing /etc/fstab. This code comes from 4.4 BSD.
2148 * The new function `daemon' from 4.4 BSD is useful for server programs that
2149 want to put themselves in the background.
2151 * Joel Sherrill has contributed support for several standalone boards that
2152 run without an operating system.
2154 * `printf', `scanf' and friends now accept a `q' type modifier for long
2155 long int as well as `ll'. Formats using these might be `%qu' or `%lld'.
2157 * All of the code taken from BSD (notably most of the math and networking
2158 routines) has been updated from the BSD 4.4-Lite release.
2160 * The resolver code has been updated from the BIND-4.9.3-BETA9 release.
2162 * The new functions `getdomainname' and `setdomainname' fetch or change the
2163 YP/NIS domain name. These are system calls which exist on systems which
2164 have YP (aka NIS).
2166 * The time zone data files have been updated for the latest international
2167 conventions.
2169 * The SunRPC programs `portmap' and `rpcinfo' are now installed in
2170 $(sbindir) (usually /usr/local/sbin) instead of $(bindir).
2171 \f
2172 Version 1.08
2174 * The C library now includes support for Sun RPC, from Sun's free
2175 RPCSRC-4.0 distribution. The `portmap', `rpcinfo', and `rpcgen' programs
2176 are included. (There is still no support for YP.)
2178 * Tom Quinn has contributed a port of the C library to SGI machines running
2179 Irix 4 (mips-sgi-irix4).
2181 * The new `lockf' function is a simplified interface to the locking
2182 facilities of `fcntl', included for compatibility.
2184 * New time functions `timegm', `timelocal', and `dysize' for compatibility.
2186 * New header file <sys/timeb.h> and new function `ftime' for compatibility.
2188 * New header files <poll.h> and <sys/poll.h> and new function `poll' for
2189 compatibility.
2191 * The error message printed by `assert' for a failed assertion now includes
2192 the name of the program (if using GNU ld) and the name of the calling
2193 function (with versions of GCC that support this).
2195 * The `psignal' function is now declared in <signal.h>, not <stdio.h>.
2197 * The library now includes the <sys/mman.h> header file and memory
2198 management functions `mmap', `munmap', `mprotect', `msync', and
2199 `madvise', on systems that support those facilities.
2201 * The interface for `mcheck' has changed slightly: the function called to
2202 abort the program when an allocation inconsistency is detected now takes
2203 an argument that indicates the type of failure. The new function
2204 `mprobe' lets you request a consistency check for a particular block at
2205 any time (checks are normally done only when you call `free' or `realloc'
2206 on a block).
2208 * It is now possible to easily cross-compile the C library, building on one
2209 system a library to run on another machine and/or operating system. All
2210 you need to do is set the variable `HOST_CC' in `configparms' to the
2211 native compiler for programs to run on the machine you are building on (a
2212 few generator programs are used on Unix systems); set `CC' to the
2213 cross-compiler.
2215 * The new function `fexecve' (only implemented on the GNU system) executes
2216 a program file given a file descriptor already open on the file.
2217 \f
2218 Version 1.07
2220 * Brendan Kehoe has contributed most of a port to the DEC Alpha
2221 running OSF/1 (alpha-dec-osf1). He says it is 75% complete.
2223 * You can set the variable `libprefix' in `configparms' to specify a prefix
2224 to be prepended to installed library files; this makes it easy to install
2225 the GNU C library to be linked as `-lgnuc' or whatever.
2227 * The new `stpncpy' is a cross between `stpcpy' and `strncpy': It
2228 copies a limited number of characters from a string, and returns the
2229 address of the last character written.
2231 * You no longer need to check for whether the installed `stddef.h' is
2232 compatible with the GNU C library. configure now checks for you.
2234 * You can now define a per-stream `fileno' function to convert the
2235 stream's cookie into an integral file descriptor.
2237 * ``malloc (0)'' no longer returns a null pointer. Instead, it
2238 allocates zero bytes of storage, and returns a unique pointer which
2239 you can pass to `realloc' or `free'. The behavior is undefined if
2240 you dereference this pointer.
2242 * The C library now runs on Sony NEWS m68k machines running either
2243 NewsOS 3 or NewsOS 4.
2245 * The new `syscall' function is a system-dependent primitive function
2246 for invoking system calls. It has the canonical behavior on Unix
2247 systems, including unreliable return values for some calls (such as
2248 `pipe', `fork' and `getppid').
2250 * The error code `EWOULDBLOCK' is now obsolete; it is always defined
2251 to `EAGAIN', which is the preferred name. On systems whose kernels
2252 use two distinct codes, the C library now translates EWOULDBLOCK to
2253 EAGAIN in every system call function.
2254 \f
2255 Version 1.06
2257 * The GNU C Library Reference Manual is now distributed with the library.
2258 `make dvi' will produce a DVI file of the printed manual.
2259 `make info' will produce Info files that you can read on line using C-h i
2260 in Emacs or the `info' program.
2261 Please send comments on the manual to bug-glibc-manual@gnu.org.
2263 * The library now supports SVR4 on i386s (i386-unknown-sysv4).
2265 * Brendan Kehoe has contributed a port to Sun SPARCs running Solaris 2.
2267 * Jason Merrill has contributed a port to the Sequent Symmetry running
2268 Dynix version 3 (i386-sequent-dynix).
2270 * The library has been ported to i386s running SCO 3.2.4 (also known as SCO
2271 ODT 2.0; i386-unknown-sco3.2.4) or SCO 3.2 (i386-unknown-sco3.2).
2273 * New function `memory_warnings' lets you arrange to get warnings when
2274 malloc is running out of memory to allocate, like Emacs gives you.
2276 * The C library now contains the relocating allocator used in Emacs 19 for
2277 its editing buffers. This allocator (ralloc) minimizes allocation
2278 overhead and fragmentation by moving allocated regions around whenever it
2279 needs to. You always refer to a ralloc'd region with a "handle" (a
2280 pointer to a pointer--an object of type `void **').
2282 * There is a new `printf' format: `%m' gives you the string corresponding
2283 to the error code in `errno'.
2285 * In `scanf' formats, you can now use `%as' or `%a[' to do the normal `%s'
2286 or `%[' conversion, but instead of filling in a fixed-sized buffer you
2287 pass, the `a' modifier says to fill in a `char **' you pass with a
2288 malloc'd string.
2290 * The `fnmatch' function supports the new flag bits `FNM_LEADING_DIR' and
2291 `FNM_CASEFOLD'. `FNM_LEADING_DIR' lets a pattern like `foo*' match a
2292 name like `foo/bar'. `FNM_CASEFOLD' says to ignore case in matching.
2294 * `mkstemp' is a traditional Unix function to atomically create and open a
2295 uniquely-named temporary file.
2296 \f
2297 Version 1.05
2299 * The standard location for the file that says what the local timezone is
2300 has changed again. It is now `/usr/local/etc/localtime' (or more
2301 precisely, `${prefix}/etc/localtime') rather than `/etc/localtime'.
2303 * The distribution no longer contains any files with names longer than 14
2304 characters.
2306 * `struct ttyent' has two new flag bits: TTY_TRUSTED and TTY_CONSOLE.
2307 These are set by the new `trusted' and `console' keywords in `/etc/ttys'.
2309 * New functions `ttyslot' and `syslog' from 4.4 BSD.
2310 \f
2311 Version 1.04
2313 * The configuration process has changed quite a bit. The `configure'
2314 script is now used just like the configuration scripts for other GNU
2315 packages. The `sysdeps' directory hierarchy is much rearranged.
2316 The file `INSTALL' explains the new scheme in detail.
2318 * The header files no longer need to be processed into ANSI C and
2319 traditional C versions. There is just one set of files to install, and
2320 it will work with ANSI or old C compilers (including `gcc -traditional').
2322 * Brendan Kehoe and Ian Lance Taylor have ported the library to the
2323 MIPS DECStation running Ultrix 4.
2325 * The Sun 4 startup code (crt0) can now properly load SunOS 4 shared libraries.
2326 Tom Quinn contributed the initial code. The GNU C library can NOT yet be
2327 made itself into a shared library.
2329 * Yet further improved support for the i386, running 4.3 BSD-like systems
2330 (such as Mach 3 with the Unix single-server), or System V.
2332 * New function `strncasecmp' to do case-insensitive string comparison
2333 with limited length.
2335 * New function `strsep' is a reentrant alternative to `strtok'.
2337 * New functions `scandir' and `alphasort' for searching directories.
2339 * New function `setenv' is a better interface to `putenv'.
2341 * Ian Lance Taylor has contributed an implementation of the SVID `ftw'
2342 function for traversing a directory tree.
2344 * The GNU obstack package is now also part of the C library.
2345 The new function `open_obstack_stream' creates a stdio stream that
2346 writes onto an obstack; `obstack_printf' and `obstack_vprintf' do
2347 formatted output directly to an obstack.
2349 * Miscellaneous new functions: reboot, nice, sigaltstack (4.4 BSD only),
2350 cfmakeraw, getusershell, getpass, swab, getttyent, seteuid, setegid.
2352 * `FNM_FILE_NAME' is another name for `FNM_PATHNAME', used with `fnmatch'.
2354 * The new functions `strfry' and `memfrob' do mysterious and wonderful
2355 things to your strings.
2357 * There are some new test programs: test-fseek, testmb, and testrand.
2359 * Some work has been done to begin porting the library to 4.4 BSD and Linux.
2360 These ports are not finished, but are a good starting place for really
2361 supporting those systems.
2363 * `/etc/localtime' is now the standard location for the file that says what
2364 the local timezone is, rather than `/usr/local/lib/zoneinfo/localtime'.
2365 This follows the general principle that `/etc' is the place for all local
2366 configuration files.
2368 * The C library header files now use `extern "C"' when used by the C++
2369 compiler, so the C library should now work with C++ code.
2371 * The header file <bstring.h> is gone. <string.h> now declares bcopy,
2372 bcmp, bzero, and ffs. (Update: nowadays these functions are declared
2373 in <strings.h>.)
2375 * Mike Haertel (of GNU e?grep and malloc fame) has written a new sorting
2376 function which uses the `merge sort' algorithm, and is said to be
2377 significantly faster than the old GNU `qsort' function. Merge sort is
2378 now the standard `qsort' function. The new algorithm can require a lot
2379 of temporary storage; so, the old sorting function is called when the
2380 required storage is not available.
2382 * The C library now includes Michael Glad's Ultra Fast Crypt, which
2383 provides the Unix `crypt' function, plus some other entry points.
2385 * The code and header files taken from 4.4 BSD have been updated with the
2386 latest files released from Berkeley.
2387 \f
2388 ----------------------------------------------------------------------
2389 Copyright information:
2391 Copyright (C) 1992-2014 Free Software Foundation, Inc.
2393 Permission is granted to anyone to make or distribute verbatim copies
2394 of this document as received, in any medium, provided that the
2395 copyright notice and this permission notice are preserved,
2396 thus giving the recipient permission to redistribute in turn.
2398 Permission is granted to distribute modified versions
2399 of this document, or of portions of it,
2400 under the above conditions, provided also that they
2401 carry prominent notices stating who last changed them.
2402 \f
2403 Local variables:
2404 version-control: never
2405 fill-column: 76
2406 End: