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.
10 * The following bugs are resolved with this release:
12 6804, 9894, 12994, 13347, 13651, 14308, 14770, 15119, 15132, 15347, 15514,
13 15698, 15804, 15894, 15946, 16002, 16064, 16095, 16198, 16284, 16348,
14 16349, 16357, 16362, 16447, 16516, 16532, 16545, 16564, 16574, 16599,
15 16600, 16609, 16610, 16611, 16613, 16619, 16623, 16629, 16632, 16634,
16 16639, 16642, 16648, 16649, 16670, 16674, 16677, 16680, 16681, 16683,
17 16689, 16695, 16701, 16706, 16707, 16712, 16713, 16714, 16724, 16731,
18 16739, 16740, 16743, 16754, 16758, 16759, 16760, 16770, 16786, 16789,
19 16791, 16796, 16799, 16800, 16815, 16823, 16824, 16831, 16838, 16849,
20 16854, 16876, 16877, 16878, 16882, 16885, 16888, 16890, 16912, 16915,
21 16916, 16917, 16922, 16927, 16928, 16932, 16943, 16958, 16965, 16966,
22 16967, 16977, 16978, 16984, 16990, 16996, 17009, 17031, 17042, 17048,
25 * The minimum Linux kernel version that this version of the GNU C Library
26 can be used with is 2.6.32.
28 * Running the testsuite no longer terminates as soon as a test fails.
29 Instead, a file tests.sum (xtests.sum from "make xcheck") is generated,
30 with PASS or FAIL lines for individual tests. A summary of the results is
31 printed, including a list of failing lists, and "make check" exits with
32 error status if there were any unexpected failures. "make check
33 stop-on-test-failure=y" may be used to keep the old behavior.
35 * The am33 port, which had not worked for several years, has been removed
38 * The _BSD_SOURCE and _SVID_SOURCE feature test macros are no longer
39 supported; they now act the same as _DEFAULT_SOURCE (but generate a
40 warning). Except for cases where _BSD_SOURCE enabled BSD interfaces that
41 conflicted with POSIX (support for which was removed in 2.19), the
42 interfaces those macros enabled remain available when compiling with
43 _GNU_SOURCE defined, with _DEFAULT_SOURCE defined, or without any feature
46 * Optimized strcmp implementation for ARMv7. Contributed by ARM Ltd.
48 * Added support for TX lock elision of pthread mutexes on s390 and s390x.
49 This may improve lock scaling of existing programs on TX capable systems.
50 The lock elision code is only built with --enable-lock-elision=yes and
51 then requires a GCC version supporting the TX builtins. With lock elision
52 default mutexes are elided via __builtin_tbegin, if the cpu supports
53 transactions. By default lock elision is not enabled and the elision code
58 * The following bugs are resolved with this release:
60 156, 387, 431, 762, 832, 926, 2801, 4772, 6786, 6787, 6807, 6810, 6981,
61 7003, 9721, 9954, 10253, 10278, 11087, 11157, 11214, 12100, 12486, 12751,
62 12986, 13028, 13982, 13985, 14029, 14032, 14120, 14143, 14155, 14286,
63 14547, 14699, 14752, 14782, 14876, 14910, 15004, 15048, 15073, 15089,
64 15128, 15218, 15268, 15277, 15308, 15362, 15374, 15400, 15425, 15427,
65 15483, 15522, 15531, 15532, 15593, 15601, 15608, 15609, 15610, 15632,
66 15640, 15670, 15672, 15680, 15681, 15723, 15734, 15735, 15736, 15748,
67 15749, 15754, 15760, 15763, 15764, 15797, 15799, 15825, 15843, 15844,
68 15846, 15847, 15849, 15850, 15855, 15856, 15857, 15859, 15867, 15886,
69 15887, 15890, 15892, 15893, 15895, 15897, 15901, 15905, 15909, 15915,
70 15917, 15919, 15921, 15923, 15939, 15941, 15948, 15963, 15966, 15968,
71 15985, 15988, 15997, 16032, 16034, 16036, 16037, 16038, 16041, 16046,
72 16055, 16071, 16072, 16074, 16077, 16078, 16103, 16112, 16143, 16144,
73 16146, 16150, 16151, 16153, 16167, 16169, 16172, 16195, 16214, 16245,
74 16271, 16274, 16283, 16289, 16293, 16314, 16316, 16330, 16337, 16338,
75 16356, 16365, 16366, 16369, 16372, 16375, 16379, 16381, 16384, 16385,
76 16386, 16387, 16390, 16394, 16398, 16400, 16407, 16408, 16414, 16430,
77 16431, 16453, 16474, 16506, 16510, 16529
79 * Slovenian translations for glibc messages have been contributed by the
80 Translation Project's Slovenian team of translators.
82 * The public headers no longer use __unused nor __block. This change is to
83 support compiling programs that are derived from BSD sources and use
84 __unused internally, and to support compiling with Clang's -fblock
85 extension which uses __block.
87 * CVE-2012-4412 The strcoll implementation caches indices and rules for
88 large collation sequences to optimize multiple passes. This cache
89 computation may overflow for large collation sequences and may cause a
90 stack or buffer overflow. This is now fixed to use a slower algorithm
91 which does not use a cache if there is an integer overflow.
93 * CVE-2012-4424 The strcoll implementation uses malloc to cache indices and
94 rules for large collation sequences to optimize multiple passes and falls
95 back to alloca if malloc fails, resulting in a possible stack overflow.
96 The implementation now falls back to an uncached collation sequence lookup
99 * CVE-2013-4788 The pointer guard used for pointer mangling was not
100 initialized for static applications resulting in the security feature
101 being disabled. The pointer guard is now correctly initialized to a
102 random value for static applications. Existing static applications need
103 to be recompiled to take advantage of the fix (bug 15754).
105 * CVE-2013-4237 The readdir_r function could write more than NAME_MAX bytes
106 to the d_name member of struct dirent, or omit the terminating NUL
107 character. (Bugzilla #14699).
109 * CVE-2013-4332 The pvalloc, valloc, memalign, posix_memalign and
110 aligned_alloc functions could allocate too few bytes or corrupt the
111 heap when passed very large allocation size values (Bugzilla #15855,
114 * CVE-2013-4458 Stack overflow in getaddrinfo with large number of results
115 for AF_INET6 has been fixed (Bugzilla #16072).
117 * New locales: ak_GH, anp_IN, ar_SS, cmn_TW, hak_TW, lzh_TW, nan_TW, pap_AW,
118 pap_CW, quz_PE, the_NP.
120 * Substantially revised locales: gd_GB, ht_HT
122 * The LC_ADDRESS field was updated to support country_car for almost all
125 * ISO 1427 definitions were updated.
127 * ISO 3166 definitions were updated.
129 * The localedef utility now supports --big-endian and --little-endian
130 command-line options to generate locales for a different system from that
131 for which the C library was built.
133 * Binary locale files now only depend on the endianness of the system for
134 which they are generated and not on other properties of that system. As a
135 consequence, binary files generated with new localedef may be incompatible
136 with old versions of the GNU C Library, and binary files generated with
137 old localedef may be incompatible with this version of the GNU C Library,
138 in the following circumstances:
140 + Locale files may be incompatible on m68k systems.
142 + Locale archive files (but not separate files for individual locales) may
143 be incompatible on systems where plain "char" is signed.
145 * The configure option --disable-versioning has been removed. Builds with
146 --disable-versioning had not worked for several years.
148 * ISO 639 definitions were updated for Chiga (cgg) and Chinese (gan, hak, czh,
149 cjy, lzh, cmn, mnp, cdo, czo, cpx, wuu, hsn, yue).
151 * SystemTap probes for malloc have been introduced.
153 * SystemTap probes for slow multiple precision fallback paths of
154 transcendental functions have been introduced.
156 * Support for powerpc64le has been added.
158 * The soft-float powerpc port now supports e500 processors.
160 * Support for STT_GNU_IFUNC symbols added for ppc32/power4+ and ppc64.
162 * A new feature test macro _DEFAULT_SOURCE is available to enable the same
163 set of header declarations that are enabled by default, even when other
164 feature test macros or compiler options such as -std=c99 would otherwise
165 disable some of those declarations.
167 * The _BSD_SOURCE feature test macro no longer enables BSD interfaces that
168 conflict with POSIX. The libbsd-compat library (which was a dummy library
169 that did nothing) has also been removed.
171 * Preliminary documentation about Multi-Thread, Async-Signal and
172 Async-Cancel Safety has been added.
174 * Change of ABI data structures for s390 and s390x:
175 On s390 and s390x the size of struct ucontext and jmp_buf was increased to
176 allow for future hardware extensions. All library functions that accept or
177 return these structures were versioned in order to provide backwards
178 compatibility with existing code. However, not all cases can be handled
179 with interface versioning. If an application embeds either structure into
180 another structure and that structure is passed to another compilation unit
181 which expects the newer larger-sized object then any access to the new
182 fields will result in undefined behaviour. Similarly any access to fields
183 that were moved by the enlarging of the structures will cause undefined
184 behaviour. To fix the undefined behaviour all objects that are part of the
185 final in-memory image must agree on the size of structures, and this may
186 require recompilation.
190 * The following bugs are resolved with this release:
192 2546, 2560, 5159, 6809, 7006, 10060, 10062, 10283, 10357, 10686, 11120,
193 11561, 12310, 12387, 12492, 12515, 12723, 13550, 13889, 13951, 13988,
194 14142, 14176, 14200, 14256, 14280, 14293, 14317, 14327, 14478, 14496,
195 14582, 14686, 14812, 14888, 14894, 14907, 14908, 14909, 14920, 14952,
196 14964, 14981, 14982, 14985, 14991, 14994, 14996, 15000, 15003, 15006,
197 15007, 15014, 15020, 15022, 15023, 15036, 15054, 15055, 15062, 15078,
198 15084, 15085, 15086, 15100, 15160, 15214, 15221, 15232, 15234, 15283,
199 15285, 15287, 15304, 15305, 15307, 15309, 15327, 15330, 15335, 15336,
200 15337, 15339, 15342, 15346, 15359, 15361, 15366, 15380, 15381, 15394,
201 15395, 15405, 15406, 15409, 15416, 15418, 15419, 15423, 15424, 15426,
202 15429, 15431, 15432, 15441, 15442, 15448, 15465, 15480, 15485, 15488,
203 15490, 15492, 15493, 15497, 15506, 15529, 15536, 15553, 15577, 15583,
204 15618, 15627, 15631, 15654, 15655, 15666, 15667, 15674, 15711, 15755,
207 * CVE-2013-2207 Incorrectly granting access to another user's pseudo-terminal
208 has been fixed by disabling the use of pt_chown (Bugzilla #15755).
209 Distributions can re-enable building and using pt_chown via the new configure
210 option `--enable-pt_chown'. Enabling the use of pt_chown carries with it
211 considerable security risks and should only be used if the distribution
212 understands and accepts the risks.
214 * CVE-2013-0242 Buffer overrun in regexp matcher has been fixed (Bugzilla
217 * CVE-2013-1914 Stack overflow in getaddrinfo with many results has been
218 fixed (Bugzilla #15330).
220 * Add support for calling C++11 thread_local object destructors on thread
221 and program exit. This needs compiler support for offloading C++11
222 destructor calls to glibc.
224 * Improved worst case performance of libm functions with double inputs and
227 * Support for priority inherited mutexes in pthread condition variables on
228 non-x86 architectures.
230 * Port to Xilinx MicroBlaze contributed by David Holsgrove.
232 * Optimized string functions for AArch64. Implemented by Marcus Shawcroft.
234 * Optimized string functions for ARM. Implemented by Will Newton and
237 * Optimized libm functions for SPARC. Implemented by David S. Miller.
239 * Support for building more of ARM glibc as Thumb-2 code. Implemented by
242 * Support for building most of MIPS glibc as MIPS16 code. Implemented by
243 Chung-Lin Tang, Maciej W. Rozycki and Maxim Kuvyrkov.
245 * Added a benchmark framework to track performance of functions in glibc.
247 * New <math.h> macro named issignaling to check for a signaling NaN (sNaN).
248 It is based on draft TS 18661 and currently enabled as a GNU extension.
250 * On Linux, the clock function now uses the clock_gettime system call
251 for improved precision, rather than old times system call.
253 * Added support for version-3 tz format files. This is needed when using
254 the tz database release 2013e or later, and affects a few unusual cases --
255 currently only TZ='America/Godthab' for time stamps after 2037.
257 * Added new API functions pthread_getattr_default_np and
258 pthread_setattr_default_np to get and set the default pthread
259 attributes of a process.
261 * Added support for TSX lock elision for pthread mutexes on i386 and x86-64.
262 This may improve lock scaling of existing programs on TSX capable systems.
263 When the --enable-lock-elision=yes parameter is specified at configure
264 time lock elision will be enabled by default for all PTHREAD_MUTEX_DEFAULT
267 * Support added for AT_HWCAP2 (to coincide with Linux kernel 3.10
268 availability). Implemented by Ryan S. Arnold.
270 * Support added for POWER8 platform. Implemented by Ryan S. Arnold.
274 * The following bugs are resolved with this release:
276 1349, 3439, 3479, 3665, 5044, 5246, 5298, 5400, 6530, 6677, 6778, 6808,
277 9685, 9914, 10014, 10038, 10114, 10191, 10631, 10873, 11438, 11607, 11638,
278 11741, 12140, 13013, 13412, 13542, 13601, 13603, 13604, 13629, 13679,
279 13696, 13698, 13717, 13741, 13759, 13761, 13763, 13881, 13939, 13950,
280 13952, 13966, 14042, 14047, 14090, 14150, 14151, 14152, 14154, 14157,
281 14166, 14173, 14195, 14197, 14237, 14246, 14251, 14252, 14283, 14298,
282 14303, 14307, 14328, 14331, 14336, 14337, 14347, 14349, 14368, 14376,
283 14417, 14447, 14459, 14476, 14477, 14501, 14505, 14510, 14516, 14518,
284 14519, 14530, 14532, 14538, 14543, 14544, 14545, 14557, 14562, 14568,
285 14576, 14579, 14583, 14587, 14595, 14602, 14610, 14621, 14638, 14645,
286 14648, 14652, 14660, 14661, 14669, 14672, 14683, 14694, 14716, 14719,
287 14743, 14767, 14783, 14784, 14785, 14793, 14796, 14797, 14801, 14803,
288 14805, 14807, 14811, 14815, 14821, 14822, 14824, 14828, 14831, 14833,
289 14835, 14838, 14856, 14863, 14865, 14866, 14868, 14869, 14871, 14872,
290 14879, 14889, 14893, 14898, 14914.
292 * Optimization of memcpy for MIPS.
294 * CVE-2011-4609 svc_run() produces high cpu usage when accept fails with
295 EMFILE has been fixed (Bugzilla #14889).
297 * The add-on ports collection is now distributed in the "ports" subdirectory
298 of the main GNU C Library distribution, rather than separately.
300 * Port to ARM AArch64 contributed by Linaro.
302 * Support for STT_GNU_IFUNC symbols added for s390 and s390x.
303 Optimized versions of memcpy, memset, and memcmp added for System z10 and
305 Implemented by Andreas Krebbel.
307 * The new function secure_getenv allows secure access to the environment,
308 returning NULL if running in a SUID/SGID process. This function replaces
309 the internal function __secure_getenv.
311 * SystemTap static probes have been added into the dynamic linker.
312 Implemented by Gary Benson.
314 * Optimizations of string functions strstr, strcasestr and memmem.
315 Implemented by Maxim Kuvyrkov.
317 * The minimum Linux kernel version that this version of the GNU C Library
318 can be used with is 2.6.16.
320 * Optimizations of string functions memchr, wcschr, wcscpy, and wcsrchr for
321 powerpc POWER7. Implemented by Will Schmidt.
323 * New configure option --disable-nscd builds the C library such that it
324 never attempts to contact the Name Service Caching Daemon (nscd).
325 New configure option --disable-build-nscd avoids building nscd itself;
326 this is the default if --disable-nscd is used.
328 * Improved support for cross-compilation, including cross-testing and
329 bootstrap builds without a previously built glibc.
331 * Several testsuite tests are now able to test multiple IFUNC variants of an
332 interface, rather than just testing the one that would be chooen by
335 * New configure options --with-bugurl and --with-pkgversion, for
336 distributors to use to embed their bug-reporting and package version
337 information in --help and --version output.
339 * The ttyname and ttyname_r functions on Linux now fall back to searching for
340 the tty file descriptor in /dev/pts or /dev if /proc is not available. This
341 allows creation of chroots without the procfs mounted on /proc.
343 * The `crypt' function now fails if passed salt bytes that violate the
344 specification for those values. On Linux, the `crypt' function will
345 consult /proc/sys/crypto/fips_enabled to determine if "FIPS mode" is
346 enabled, and fail on encrypted strings using the MD5 or DES algorithm
347 when the mode is enabled.
349 * The `clock_*' suite of functions (declared in <time.h>) is now available
350 directly in the main C library. Previously it was necessary to link with
351 -lrt to use these functions. This change has the effect that a
352 single-threaded program that uses a function such as `clock_gettime' (and
353 is not linked with -lrt) will no longer implicitly load the pthreads
354 library at runtime and so will not suffer the overheads associated with
355 multi-thread support in other code such as the C++ runtime library.
357 * New locales: ayc_PE, doi_IN, ia_FR, mni_IN, nhn_MX, niu_NU, niu_NZ,
362 * The following bugs are resolved with this release:
364 174, 208, 350, 369, 411, 706, 766, 887, 2074, 2541, 2547, 2548, 2550,
365 2551, 2552, 2553, 2554, 2562, 2563, 2565, 2566, 2570, 2576, 2636, 2678,
366 3335, 3440, 3748, 3768, 3866, 3868, 3906, 3976, 3992, 4026, 4108, 4596,
367 4822, 5077, 5461, 5805, 5993, 6471, 6486, 6578, 6649, 6730, 6770, 6794,
368 6884, 6890, 6894, 6895, 6907, 6911, 6959, 7064, 9739, 9902, 10110, 10135,
369 10140, 10153, 10210, 10254, 10346, 10375, 10545, 10716, 10846, 11174,
370 11261, 11322, 11365, 11451, 11494, 11521, 11677, 11837, 11959, 12047,
371 12097, 12193, 12194, 12297, 12298, 12301, 12340, 12354, 12416, 12495,
372 13058, 13223, 13361, 13525, 13526, 13527, 13528, 13529, 13530, 13531,
373 13532, 13533, 13547, 13551, 13552, 13553, 13555, 13556, 13559, 13563,
374 13566, 13576, 13579, 13583, 13592, 13594, 13613, 13618, 13637, 13656,
375 13658, 13673, 13691, 13695, 13704, 13705, 13706, 13718, 13726, 13738,
376 13739, 13743, 13750, 13758, 13760, 13761, 13775, 13786, 13787, 13792,
377 13806, 13824, 13840, 13841, 13844, 13846, 13848, 13851, 13852, 13854,
378 13871, 13872, 13873, 13879, 13882, 13883, 13884, 13885, 13886, 13892,
379 13895, 13908, 13910, 13911, 13912, 13913, 13914, 13915, 13916, 13917,
380 13918, 13919, 13920, 13921, 13922, 13923, 13924, 13926, 13927, 13928,
381 13938, 13941, 13942, 13954, 13955, 13956, 13963, 13967, 13968, 13970,
382 13973, 13979, 13983, 13986, 13996, 14012, 14027, 14033, 14034, 14036,
383 14040, 14043, 14044, 14048, 14049, 14050, 14053, 14055, 14059, 14064,
384 14075, 14080, 14083, 14103, 14104, 14109, 14112, 14117, 14122, 14123,
385 14134, 14153, 14183, 14188, 14199, 14210, 14218, 14229, 14241, 14273,
388 * Support for the x32 ABI on x86-64 added. The x32 target is selected by
389 configuring glibc with:
390 BUILD_CC='gcc' CC='gcc -mx32' CXX='g++ -mx32'
391 Visit <http://sites.google.com/site/x32abi/> for more x32 ABI info.
392 Implemented by H.J. Lu.
396 + define static_assert
398 + do not declare gets
400 + declare at_quick_exit and quick_exit also for ISO C11
402 + aligned_alloc. NB: The code is deliberately allows the size parameter
403 to not be a multiple of the alignment. This is a moronic requirement
404 in the standard but it is only a requirement on the caller, not the
409 + uchar.h support added
411 + CMPLX, CMPLXF, CMPLXL added
413 Implemented by Ulrich Drepper.
415 * Support for the IA-64 has been moved to ports.
417 * Remove support for anything but ELF binary format
419 * Checking versions of poll, ppoll added.
420 Implemented by Ulrich Drepper.
422 * More generic and 64-bit performance optimizations to math functions.
423 Implemented by Ulrich Drepper.
425 * New configure option --enable-obsolete-rpc makes the deprecated RPC
426 headers and functions available at compile time as they were before
427 version 2.14. This option will be removed at some time in the future
428 after the TI-RPC library becomes fully sufficient for the needs of
429 existing applications.
431 * Compatibility code for Linux kernel versions before 2.4 has been removed.
432 Note that glibc is not expected to work with any Linux kernel version
435 * New header <sys/auxv.h> and function getauxval allowing easy access to
436 the AT_* key-value pairs passed from the Linux kernel. The header also
437 defines the HWCAP_* bits associated with the AT_HWCAP key.
439 * New locales: mag_IN
441 * New configure option --enable-systemtap builds SystemTap static probes
442 into libc for setjmp and longjmp and into libpthread for various operations.
443 So far the setjmp/longjmp probes and some of the libpthread probes are
444 provided only for i*86 and x86_64.
445 Implemented by Roland McGrath and Rayson Ho.
447 * Optimized expf for x86-32 and x86-64. Implemented by Liubov Dmitrieva.
449 * More optimized functions for PowerPC. Implemented by Adhemerval Zanella
452 * More optimized functions for SPARC. Implemented by David S. Miller.
454 * Improved support for cross-compilation, especially bootstrap builds
455 without a previously built glibc.
457 * Ports for the TILE-Gx and TILEPro families of processors. Contributed by
458 Chris Metcalf from Tilera.
460 * Support for the old ARM ABI has been removed from ports. Only the EABI is
461 now supported for ARM processors.
463 * The hard-float variant of the ARM EABI now uses /lib/ld-linux-armhf.so.3
464 as the name of the dynamic linker, to distinguish it from the
465 /lib/ld-linux.so.3 dynamic linker used for the base EABI.
467 * Support for CRIS has been removed from ports.
469 * A new class of installed header has been documented for low-level
470 platform-specific functionality. PowerPC added the first instance with a
471 function to provide time base register access. Contributed by Tulio
472 Magno Quites Machado Filho.
474 * ix86 configurations now install header files that are consistent with
475 what x86-64 configurations install. These same header files can be used
476 for -m32, -m64, or -mx32 builds.
477 Contributed by H.J. Lu.
479 * Math library bug fixes. A thorough audit of all open math library bugs was
480 conducted by Joseph Myers. Significant progress was made on many math
481 library bugs resulting in more accurate exceptions and function results.
482 Many thanks to all those that contributed including Andreas Jaeger for his
483 patch review and work on the x87 trigonometric instruction issues.
485 * Timezone data is no longer installed. Timezone-related binaries and scripts
486 will continue to be installed. Users should obtain their timezone data from
487 their distribution provider or from the tzdata package at
488 <ftp://munnari.oz.au/pub/>.
492 * The following bugs are resolved with this release:
494 6779, 6783, 9696, 10103, 10709, 11589, 11929, 12403, 12786, 12840, 12847,
495 12868, 12852, 12874, 12885, 12892, 12906, 12907, 12922, 12935, 12962,
496 13007, 13021, 13061, 13062, 13067, 13068, 13085, 13088, 13090, 13092,
497 13096, 13114, 13118, 13123, 13134, 13138, 13147, 13150, 13166, 13179,
498 13185, 13189, 13192, 13268, 13276, 13282, 13291, 13305, 13328, 13335,
499 13337, 13344, 13358, 13367, 13413, 13416, 13423, 13439, 13446, 13472,
500 13484, 13506, 13515, 13523, 13524, 13538, 13540
502 * New program pldd to list loaded object of a process
503 Implemented by Ulrich Drepper.
505 * Add nss_db support back to glibc. No more dependency on Berkeley db
506 and support for initgroups lookups.
507 Implemented by Ulrich Drepper.
509 * Optimized strcpy, strncpy, stpcpy, stpncpy for SSE2 and SSSE3 on x86-32.
510 Contributed by HJ Lu.
512 * Improved strcpy, strncpy, stpcpy, stpncpy for SSE2 and SSSE3 on x86-64.
513 Contributed by HJ Lu.
515 * Optimized strcat, strncat on x86-64 and optimized wcscmp, wcslen, strnlen
516 on x86-32 and x86-64.
517 Contributed by Liubov Dmitrieva.
519 * Optimized strchr and strrchr for SSE on x86-32.
520 Contributed by Liubov Dmitrieva.
522 * Optimized memchr, memrchr, rawmemchr, memcmp, wmemcmp, wcschr, wcscpy
523 for x86-64 and x86-32.
524 Contributed by Liubov Dmitrieva.
526 * New interfaces: scandirat, scandirat64
527 Implemented by Ulrich Drepper.
529 * Checking versions of FD_SET, FD_CLR, and FD_ISSET added.
530 Implemented by Ulrich Drepper.
532 * nscd now also caches the netgroup database.
533 Implemented by Ulrich Drepper.
535 * Integrate libm with gcc's -ffinite-math-only option.
536 Implemented by Ulrich Drepper.
538 * Lots of generic, 64-bit, and x86-64-specific performance optimizations
539 to math functions. Implemented by Ulrich Drepper.
541 * Optimized strcasecmp and strncasecmp for AVX on x86-64.
542 Implemented by Ulrich Drepper.
544 * New Linux interfaces: process_vm_readv, process_vm_writev
546 * Optimized strcasecmp and strncasecmp for SSSE3 and SSE4.2 on x86-32.
547 Implemented by Ulrich Drepper.
549 * Optimized nearbyint and strcasecmp for PPC.
550 Implemented by Adhemerval Zanella.
552 * New locales: bho_IN, unm_US, es_CU, ta_LK
556 * The following bugs are resolved with this release:
558 386, 6420, 7101, 9730, 9732, 9809, 10138, 10149, 10157, 11099, 11257,
559 11258, 11487, 11532, 11558, 11578, 11634, 11653, 11668, 11697, 11724,
560 11781, 11799, 11820, 11837, 11857, 11869, 11892, 11895, 11901, 11945,
561 11947, 11952, 11987, 12052, 12083, 12158, 12178, 12200, 12346, 12350,
562 12393, 12420, 12432, 12445, 12449, 12453, 12454, 12460, 12469, 12489,
563 12509, 12510, 12511, 12518, 12527, 12541, 12545, 12551, 12582, 12583,
564 12587, 12597, 12601, 12611, 12625, 12626, 12631, 12650, 12653, 12655,
565 12660, 12671, 12681, 12684, 12685, 12711, 12713, 12714, 12717, 12723,
566 12724, 12734, 12738, 12746, 12766, 12775, 12777, 12782, 12788, 12792,
567 12795, 12811, 12813, 12814, 12841
569 * The RPC implementation in libc is obsoleted. Old programs keep working
570 but new programs cannot be linked with the routines in libc anymore.
571 Programs in need of RPC functionality must be linked against TI-RPC.
572 The TI-RPC implementation is IPv6 enabled and there are other benefits.
574 Visible changes of this change include (obviously) the inability to link
575 programs using RPC functions without referencing the TI-RPC library and the
576 removal of the RPC headers from the glibc headers.
577 Implemented by Ulrich Drepper.
579 * New Linux interfaces: clock_adjtime, name_to_handle_at, open_by_handle_at,
580 syncfs, setns, sendmmsg
582 * New locales: os_RU, bem_ZA, en_ZA, ff_SN, sw_KE, sw_TZ, lb_LU, wae_CH,
583 yue_HK, lij_IT, mhr_RU
585 * New encodings: CP770, CP771, CP772, CP773, CP774
587 * New program sotruss to trace calls through PLTs
588 Implemented by Ulrich Drepper.
590 * The malloc hook implementation is marked deprecated and will be removed
591 from the default implementation in the next version. The design never
592 worked ever since the introduction of threads. Even programs which do
593 not create threads themselves can use multiple threads created internally.
597 * The following bugs are resolved with this release:
599 3268, 6812, 7066, 10085, 10484, 10563, 10851, 11149, 11155, 11577, 11611,
600 11640, 11655, 11701, 11840, 11856, 11883, 11903, 11904, 11968, 11979,
601 12005, 12037, 12067, 12077, 12078, 12092, 12093, 12107, 12108, 12113,
602 12140, 12159, 12167, 12191, 12194, 12201, 12204, 12205, 12207, 12348,
605 * New Linux interfaces: prlimit, prlimit64, fanotify_init, fanotify_mark
607 * POWER7 optimizations: memset, memcmp, strncmp
609 * New optimized string functions for x86-64: strnlen (SSE2),
610 strcasecmp (SSE2, SSSE3, SSE4.2), strncasecmp (SSE2, SSSE3, SSE4.2)
611 Implemented by Ulrich Drepper.
615 * The following bugs are resolved with this release:
617 3662, 4457, 5553, 10162, 10401, 10414, 10554, 10824, 10864, 10915,
618 10918, 10936, 10939, 10958, 10968, 10969, 10972, 10992, 11000, 11001,
619 11007, 11010, 11027, 11039, 11040, 11041, 11043, 11046, 11056, 11070,
620 11093, 11115, 11125, 11126, 11127, 11134, 11141, 11149, 11183, 11184,
621 11185, 11186, 11187, 11188, 11189, 11190, 11191, 11192, 11193, 11194,
622 11200, 11230, 11235, 11242, 11254, 11258, 11271, 11272, 11276, 11279,
623 11287, 11292, 11319, 11332, 11333, 11387, 11389, 11390, 11394, 11397,
624 11410, 11438, 11449, 11470, 11471, 11520, 11537, 11538, 11571
626 * New interfaces: pthread_getname_np, pthread_setname_np
628 * New Linux interface: recvmmsg
630 * STT_GNU_IFUNC implemented for Sparc by David Miller.
632 * The dynamic linker now recognizes supported ABI versions from the
633 EI_ABIVERSION field in the ELF header.
634 Implemented by Ulrich Drepper.
636 * New NIS mode selector ADJUNCT_AS_SHADOW. The passwd.adjunct.byname table
637 will not be used to fill in password fields in the passwd.byname replies.
638 Instead it is used to synthesize the shadow.byname table, should it be
639 missing. This is a useful mode in some installations involving Solaris.
640 Implemented by Ulrich Drepper.
642 * New locales: kok_IN, sq_MK, cv_RU
646 * The following bugs are resolved with this release:
648 3270, 7094, 9924, 9986, 10011, 10085, 10107, 10159, 10162, 10166, 10183,
649 10195, 10196, 10200, 10203, 10207, 10211, 10213, 10217, 10221, 10229,
650 10262, 10286, 10312, 10315, 10319, 10349, 10360, 10391, 10402, 10416,
651 10418, 10422, 10425, 10446, 10448, 10452, 10540, 10553, 10560, 10564,
652 10609, 10643, 10692, 10713, 10717, 10730, 10731, 10742, 10780, 10784,
653 10789, 10817, 10823, 10840, 10847
655 * New interfaces: execvpe, pthread_sigqueue, mkstemps, mkstemps64, mkostemps,
657 Implemented by Ulrich Drepper.
659 * Checking version of longjmp added that fails if an uninitialized stack
660 frame would be created. Implemented by Ulrich Drepper.
662 * STT_GNU_IFUNC is now supported in static executables.
663 Implemented by H.J. Lu.
665 * STT_GNU_IFUNC implemented for PPC by Alan Modra.
667 * New optimized string functions for x86-64: strstr, strcasestr, memcmp,
668 strcspn, strpbrk, strspn, strcpy, stpcpy, strncpy, strcmp (SSE2, SSE4.2),
669 strncmp (SSE2, SSE4.2), strchr (SSE4.2), strrchr (SSE4.2).
670 Contributed by H.J. Lu.
672 strlen, rawmemchr, strcmp (SSSE3), strncmp (SSSE3).
673 Implemented by Ulrich Drepper.
675 * New optimized string functions for x86: strlen, strcspn, strspn, strpbrk,
677 Contributed by H.J. Lu.
679 * Support for fma instruction in AVX on x86-64.
680 Implemented by H.J. Lu and Ulrich Drepper.
682 * AVX support in x86-64 auditing support in ld.so.
683 Implemented by H.J. Lu.
685 * STB_GNU_UNIQUE support added.
686 Implemented by Ulrich Drepper.
688 * Implement second fallback mode for optimized DNS lookup for even more
689 broken environments. If two requests from the same port are not
690 handled correctly close the socket and open a new one before sending
691 the second request. The 'single-request-reopen' option in /etc/resolv.conf
692 can be used to select this mode right away, instead of rediscovering the
693 necessity is every process again.
694 Implemented by Ulrich Drepper.
696 * New resolver flag RES_USE_DNSSEC to enable use of verified lookup.
697 Implemented by Adam Tkac.
699 * Optimized iconv conversions for S390x.
700 Implemented by Andreas Krebbel.
702 * Using condvars with PI mutexes is now more efficient due to kernel
703 support for requeueing to PI futexes. NPTL support added for x86-64.
704 Implemented by Ulrich Drepper.
706 * New locales: ps_AF, my_MM
710 * The following bugs are resolved with this release:
712 697, 5381, 5807, 6411, 6545, 7040, 7058, 7067, 7080, 7083, 7095, 7098,
713 9677, 9694, 9697, 9701, 9704, 9705, 9706, 9720, 9726, 9730, 9733, 9736,
714 9741, 9750, 9753, 9759, 9781, 9791, 9793, 9823, 9833, 9844, 9880, 9881,
715 9891, 9893, 9895, 9913, 9916, 9920, 9948, 9955, 9957, 9963, 9985, 10052,
716 10069, 10086, 10087, 10090, 10092, 10093, 10100, 10118, 10128
718 * New interfaces: preadv, preadv64, pwritev, pwritev64, malloc_info
719 Implemented by Ulrich Drepper.
721 * New Linux interfaces: accept4, fallocate, fallocate64.
722 Implemented by Ulrich Drepper.
724 * Correct declarations of string function when used in C++ code. This
725 could lead to compile errors for invalid C++ code.
727 * XPG7/POSIX 2008 compilation environment. Many GNU-specific functions are
730 * New POSIX 2008 interface: psiginfo
731 Implemented by Ulrich Drepper.
733 * New ISO C++1x interfaces: quick_exit, at_quick_exit
734 Implemented by Ulrich Drepper.
736 * Support for selecting between multiple function definitions at runtime
737 using STT_GNU_IFUNC symbols. Implemented by Ulrich Drepper.
739 * The libcrypt library can now use the hash function implementations in
740 NSS. Implemented by Ulrich Drepper.
742 * The malloc implementation can be compiled to be less memory efficient
743 but higher performing in multi-threaded programs.
744 Implemented by Ulrich Drepper.
746 * New locales: nan_TW@latin, ks_IN
748 * Faster strlen, strchr, strchrnul, strrchr, memchr, and rawmemchr for x86-64.
749 Implemented by Ulrich Drepper.
751 * Extended printf hook support. It is possible to use user-defined types
752 and extend existing format specifiers.
753 Implemented by Ulrich Drepper.
755 * Handling for group shadow files has been added.
756 Implemented by Ulrich Drepper.
758 * DNS IPv4-IPv6 parallel lookup now deals better with broken DNS
759 servers (the case, e.g., for some people using the built-in DNS
760 server in ADSL modems/routers). There is a once-per-process timeout
761 in case of a broken server. To avoid it, users can run nscd or put
762 'options single-request' in /etc/resolv.conf.
763 Implemented by Ulrich Drepper.
767 * The following bugs are resolved with this release:
769 3406, 5209, 5210, 5381, 5794, 5814, 5911, 6428, 6438, 6442, 6447, 6461,
770 6472, 6505, 6544, 6589, 6612, 6634, 6653, 6654, 6657, 6698, 6712, 6713,
771 6719, 6723, 6724, 6740, 6763, 6771, 6790, 6791, 6817, 6824, 6839, 6843,
772 6845, 6856, 6857, 6860, 6867, 6875, 6919, 6920, 6942, 6947, 6955, 6966,
773 6968, 6974, 6980, 6995, 7008, 7009, 7029
775 * Unified lookup for getaddrinfo: IPv4 and IPv6 addresses are now looked
776 up at the same time. Implemented by Ulrich Drepper.
778 * TLS descriptors for LD and GD on x86 and x86-64.
779 Implemented by Alexandre Oliva.
781 * getaddrinfo now handles DCCP and UDPlite.
782 Implemented by Ulrich Drepper.
784 * New fixed-size conversion macros: htobe16, htole16, be16toh, le16toh,
785 htobe32, htole32, be32toh, le32toh, htobe64, htole64, be64toh, le64toh.
786 Implemented by Ulrich Drepper.
788 * New implementation of memmem, strstr, and strcasestr which is O(n).
789 Implemented by Eric Blake.
791 * New Linux interfaces: inotify_init1, dup3, epoll_create1, pipe2
793 * Implement "e" option for popen to open file descriptor with the
794 close-on-exec flag set. Implemented by Ulrich Drepper.
796 * Implement "b" mode for fmemopen. In this mode writes writes don't
797 implicitly add a NUL byte and seeks from the end of the buffer really
798 use the buffer end, not the string length as the basis.
799 Implemented by Ulrich Drepper.
801 * Many functions, exported and internal, now atomically set the close-on-exec
802 flag when run on a sufficiently new kernel. Implemented by Ulrich Drepper.
804 * Sorting rules for some Indian languages (Kannada, Gurumukhi, Telugu,
806 Implemented by Pravin Satpute.
808 * New locales: sd_IN, sd_IN@devanagari, ks_IN@devanagari, ht_HT, en_AG, nl_AW.
812 * The following bugs are resolved with this release:
814 2549, 3112, 4314, 4407, 4997, 5012, 5040, 5112, 5204, 5208, 5209, 5220,
815 5222, 5224, 5225, 5237, 5238, 5240, 5245, 5277, 5346, 5375, 5378, 5382,
816 5424, 5427, 5428, 5435, 5436, 5439, 5441, 5442, 5443, 5451, 5452, 5454,
817 5455, 5463, 5464, 5465, 5475, 5477, 5478, 5520, 5541, 5545, 5553, 5600,
818 5602, 5607, 5614, 5627, 5628, 5736, 5737, 5741, 5753, 5760, 5762, 5768,
819 5774, 5777, 5778, 5779, 5786, 5790, 5818, 5854, 5857, 5903, 5939, 5979,
820 5983, 5995, 5998, 6004, 6007, 6020, 6021, 6024, 6040, 6042
822 * New locales: bo_CN, bo_IN, shs_CA.
824 * New encoding: HP-ROMAN9, HP-GREEK8, HP-THAI8, HP-TURKISH8.
826 * Sorting rules for some Indian languages (Devanagari and Gujarati).
827 Implemented by Pravin Satpute.
829 * IPV6 addresses in /etc/resolv.conf can now have a scope ID
831 * nscd caches now all timeouts for DNS entries
832 Implemented by Ulrich Drepper.
834 * nscd is more efficient and wakes up less often.
835 Implemented by Ulrich Drepper.
837 * More checking functions: asprintf, dprintf, obstack_printf, vasprintf,
838 vdprintf, and obstack_vprintf.
839 Implemented by Jakub Jelinek.
841 * Faster memset for x86-64.
842 Implemented by Harsha Jagasia and H.J. Lu.
844 * Faster memcpy on x86.
845 Implemented by Ulrich Drepper.
847 * ARG_MAX is not anymore constant on Linux. Use sysconf(_SC_ARG_MAX).
848 Implemented by Ulrich Drepper.
850 * Faster sqrt and sqrtf implemention for some PPC variants.
851 Implemented by Steven Munroe.
855 * The following bugs are resolved with this release:
857 4125, 4126, 4178, 4359, 4407, 4512, 4514, 4525, 4554, 4556, 4557, 4566,
858 4582, 4586, 4588, 4599, 4610, 4647, 4702, 4705, 4726, 4745, 4772, 4773,
859 4775, 4776, 4792, 4813, 4814, 4816, 4833, 4858, 4860, 4896, 4905, 4925,
860 4936, 4937, 4938, 4941, 4946, 4963, 4972, 5010, 5028, 5043, 5058, 5063,
861 5071, 5103, 5104, 5112, 5113, 5184, 5186
863 * More checking functions: fread, fread_unlocked, open*, mq_open.
864 Implemented by Jakub Jelinek and Ulrich Drepper.
866 * Extend fortification to C++. Implemented by Jakub Jelinek.
868 * Implement 'm' modifier for scanf. Add stricter C99/SUS compliance
869 by not recognizing 'a' as a modifier when those specs are requested.
870 Implemented by Jakub Jelinek.
872 * PPC optimizations to math and string functions.
873 Implemented by Steven Munroe.
875 * New interfaces: mkostemp, mkostemp64. Like mkstemp* but allow additional
876 options to be passed. Implemented by Ulrich Drepper.
878 * More CPU set manipulation functions. Implemented by Ulrich Drepper.
880 * New Linux interfaces: signalfd, eventfd, eventfd_read, and eventfd_write.
881 Implemented by Ulrich Drepper.
883 * Handle private futexes in the NPTL implementation.
884 Implemented by Jakub Jelinek and Ulrich Drepper.
886 * Add support for O_CLOEXEC. Implement in Hurd. Use throughout libc.
887 Implemented by Roland McGrath and Ulrich Drepper.
889 * Linux/x86-64 vDSO support. Implemented by Ulrich Drepper.
891 * SHA-256 and SHA-512 based password encryption.
892 Implemented by Ulrich Drepper.
894 * New locales: ber_DZ, ber_MA, en_NG, fil_PH, fur_IT, fy_DE, ha_NG, ig_NG,
895 ik_CA, iu_CA, li_BE, li_NL, nds_DE, nds_NL, pap_AN, sc_IT, tk_TM, ug_CN,
898 + New iconv modules: MAC-CENTRALEUROPE, ISO-8859-9E, KOI8-RU.
899 Implemented by Ulrich Drepper.
903 * The following bugs are resolved with this release:
905 3156, 3213, 3285, 3291, 3306, 3313, 3320, 3322, 3325, 3326, 3334, 3348,
906 3352, 3363, 3369, 3426, 3427, 3429, 3451, 3458, 3465, 3480, 3483, 3493,
907 3514, 3515, 3559, 3632, 3664, 3673, 3674, 3745, 3747, 3818, 3840, 3842,
908 3851, 3855, 3884, 3885, 3902, 3905, 3919, 3944, 3954, 3955, 3957, 3991,
909 3995, 3996, 4024, 4040, 4069, 4070, 4074, 4076, 4096, 4101, 4102, 4114,
910 4130, 4131, 4181, 4276, 4306, 4342, 4344, 4349, 4364, 4368, 4381, 4392,
911 4403, 4405, 4406, 4411, 4438, 4439, 4455, 4456, 4465, 4512, 4514, 4586,
914 * New Linux interfaces: epoll_pwait, sched_getcpu.
916 * New generic interfaces: strerror_l.
918 * nscd can now cache the services database. Implemented by Ulrich Drepper.
922 * The following bugs are resolved with this release:
924 39, 68, 192, 352, 388, 531, 935, 1006, 1201, 1203, 1386, 1782, 1783, 1784,
925 1785, 1786, 1787, 1951, 1974, 1996, 2072, 2098, 2125, 2134, 2158, 2182,
926 2349, 2376, 2386, 2389, 2415, 2418, 2420, 2423, 2450, 2451, 2466, 2472,
927 2473, 2477, 2498, 2499, 2501, 2502, 2505, 2507, 2508, 2509, 2517, 2526,
928 2569, 2571, 2592, 2611, 2625, 2632, 2644, 2662, 2680, 2683, 2684, 2693,
929 2695, 2703, 2734, 2751, 2764, 2766, 2775, 2792, 2821, 2823, 2832, 2841,
930 2843, 2883, 2892, 2908, 2914, 2926, 2961, 2978, 2980, 2987, 2997, 2998,
931 3013, 3018, 3034, 3040, 3044, 3123, 3124, 3137, 3138, 3143, 3155, 3189,
932 3225, 3251, 3252, 3253, 3273
934 * For Linux, the sorting of addresses returned by getaddrinfo now also
935 handles rules 3, 4, and 7 from RFC 3484. I.e., all rules are handled.
936 Implemented by Ulrich Drepper.
938 * Allow system admin to configure getaddrinfo with the /etc/gai.conf file.
939 Implemented by Ulrich Drepper.
941 * New Linux interfaces: splice, tee, sync_file_range, vmsplice.
943 * New iconv module for MIK. Contributed by Alexander Shopov.
945 * For sites with broken group and/or passwd database, the auto-propagate
946 option of nscd can prevent creating ID lookup entries from the results
947 of a name lookup and vice versa. This usually is no problem but some
948 site might have problems with the default behavior.
949 Implemented by Ulrich Drepper.
951 * Iterating over entire database in NIS can be slow. With the
952 SETENT_BATCH_READ option in /etc/default/nss a system admin can decide
953 to trade time for memory. The entire database will be read at once.
954 Implemented by Ulrich Drepper.
956 * The interfaces introduced in RFC 3542 have been implemented by
959 * Support for the new ELF hash table format was added by Ulrich Drepper.
961 * Support for priority inheritance mutexes added by Jakub Jelinek and
964 * Support for priority protected mutexes added by Jakub Jelinek.
966 * New locales: nr_ZA, pa_PK, ca_AD, ca_FR, ca_IT, el_CY, tr_CY, as_IN,
967 or_IN, csb_PL, fy_NL, sr_ME.
971 * More overflow detection functions.
973 * New iconv converters for IBM1025, IBM1122, IBM1137, IBM1153,
974 IBM1154, IBM1155, IBM1156, IBM1157, and IBM1158 contributed by Jiro Sekiba.
976 More converters for IBM803, IBM901, IBM902, IBM921, IBM1008, IBM1097,
977 IBM1112, IBM1123, IBM1130, IBM1140, IBM1141, IBM1142, IBM1143, IBM1144,
978 IBM1145, IBM1146, IBM1147, IBM1148, IBM1149, IBM1166, IBM1167, IBM4517,
979 IBM4899, IBM4909, IBM4971, IBM5347, IBM9030, IBM9066, IBM9448, IBM12712,
980 IBM16804, IBM1364, IBM1371, IBM1388, IBM1390, and IBM1399 contributed
981 by Masahide Washizawa.
983 * It is now possible to install audit libraries for the dynamic linker using
984 LD_AUDIT. Implemented by Ulrich Drepper.
986 * The LinuxThreads add-on, providing pthreads on Linux 2.4 kernels, is no
987 longer supported. The new NPTL implementation requires Linux 2.6 kernels.
988 For a libc and libpthread that works well on Linux 2.4 kernels, we
989 recommend using the stable 2.3 branch.
991 * The new function open_wmemstream acts like open_memstream,
992 but uses a wchar_t wide character buffer.
994 * The new function ppoll is an improved version of poll, similar to pselect.
996 * New interfaces: fdopendir, openat, fstatat, fchmodat, fchownat,
997 futimesat, faccessat, mkdirat, mkfifoat, mknodat,
998 renameat, unlinkat, linkat, symlinkat, readlinkat.
1000 * New Linux kernel system calls: unshare,
1001 inotify_init, inotify_add_watch, inotify_rm_watch.
1003 * The euidaccess function is now also known by the alias eaccess,
1004 for compatibility with some other systems.
1006 * Timezone data updated to 2006b version.
1010 * The following bugs are resolved with this release:
1012 38, 253, 549, 622, 653, 721, 758, 851, 877, 915, 934, 955, 961,
1013 1016, 1037, 1076, 1079, 1080, 1081, 1082, 1083, 1084, 1085, 1086,
1014 1087, 1088, 1090, 1091, 1092, 1093, 1094, 1095, 1096, 1097, 1098,
1015 1099, 1100, 1101, 1102, 1103, 1104, 1105, 1106, 1107, 1108, 1109,
1016 1110, 1111, 1112, 1113, 1125, 1137, 1138, 1249, 1250, 1251, 1252,
1017 1253, 1254, 1350, 1358, 1394, 1438, 1498, 1534
1019 Visit <http://sources.redhat.com/bugzilla/> for the details of each bug.
1021 * As of this release, GCC 4 can be used to compile the C Library.
1023 * Timezone data updated to 2005m version.
1027 * The following bugs are resolved with this release:
1029 284, 592, 602, 626, 633, 640, 650, 661, 671, 681, 693, 700, 710, 719,
1030 722, 723, 725, 726, 727, 728, 729, 730, 731, 732, 733, 734, 735, 736,
1031 737, 738, 739, 740, 741, 742, 743, 744, 745, 765, 767, 768, 769, 776,
1032 777, 787, 821, 822, 823, 825
1034 Visit <http://sources.redhat.com/bugzilla/> for the details of each bug.
1038 * Support for RFC 3678. Real implementations exist only for Linux so far.
1039 Implemented by Ulrich Drepper.
1041 * nscd can now cache entries persistently. Expiring entries are reloaded.
1042 For speedups the cache can be shared in memory with client processes.
1043 Implemented by Ulrich Drepper.
1045 * nscd can now perform SELinux checks.
1046 Implemented by Matthew Rickard <mjricka@epoch.ncsc.mil>.
1048 * getaddrinfo queries are now cached. Canonical name lookup is performed
1050 Implemented by Ulrich Drepper.
1052 * The nothrow function attribute is used when headers are used by gcc when
1053 compiling C code. This can avoid significant amounts of exception
1056 * The malloc functions perform more error checking and are stricter when
1057 it comes to reacting on errors. The default action is to terminate
1058 the process after showing an error message. Implemented by Ulrich Drepper.
1060 * Reverse lookups of IPv6 addresses does not use bit string or .ip6.int
1061 lookups anymore unless explicitly requested. Implemented by Ulrich Drepper.
1063 * Namespaces in ld.so are implemented. DSOs can be loaded in separate
1064 namespaces using the new function dlmopen(). This feature is of course,
1065 like most other dynamic loading functionality, not available in statically
1066 linked applications. Implemented by Ulrich Drepper.
1068 * Low-overhead boundary checking variants of string and some stdio functions
1069 were added. These are to be used in conjunction with a gcc patch by
1070 Jakub Jelinek which adds calls to these functions if possible.
1071 Implemented by Jakub Jelinek and Ulrich Drepper.
1073 * Old code for several operating systems and machine architectures that
1074 have not been in working condition in a long time have been removed from
1075 the main source tree maintained by the GNU C Library's maintainers.
1076 These files are now reside in the separate `ports' source module
1077 that is usable as an add-on when building the library.
1081 * New functions `dladdr1' and `dlinfo' in <dlfcn.h> provide more ways to
1082 interrogate the dynamic linker, compatible with the Solaris interface.
1084 * ELF thread-local storage support (TLS) now works on PowerPC and PowerPC64;
1085 implemented by Paul Mackerras, Steven Munroe, and Roland McGrath.
1087 * getifaddrs now uses the netlink interface on Linux to get its information.
1088 Implemented by Thorsten Kukuk.
1090 * getaddrinfo now implements AI_V4MAPPED, AI_ALL, and AI_ADDRCONF.
1091 Implemented by Ulrich Drepper.
1093 * support for non-executable stacks on x86 has been added. Changes mostly
1096 * regex is now much faster for multibyte locales. Changes by Jakub Jelinek
1099 * getaddrinfo now performs destination address selection according to
1104 * Thread-safe interfaces for many functions that access locale data
1105 were added in version 2.3, but these features were omitted from NEWS.
1106 Many functions have variants with an `_l' suffix that take a `locale_t'
1107 object as a parameter rather than consulting the current locale.
1108 The new functions `newlocale', `duplocale', and `freelocale' in <locale.h>
1109 create and maintain `locale_t' objects. Additionally, the new function
1110 `uselocale' sets "the current locale" (as used by functions not so
1111 parameterized) set for an individual thread. These features were added
1112 in version 2.3, implemented by Ulrich Drepper and Roland McGrath.
1114 * The functions getresuid, getresgid, setresuid, and setresgid, which
1115 have long been available on Linux, are now declared in <unistd.h>
1116 and are now also available on the Hurd.
1118 * ELF thread-local storage support (TLS) now works on x86-64.
1120 * The new dynamic string token $LIB is expanded in shared library names.
1121 This normally expands to lib, but on some 64-bit platforms to lib64 instead.
1123 * Aldy Hernandez contributed complete software floating point support for
1124 PowerPC machines with no FPU.
1126 * fexecve is implemented on Linux.
1128 * The `btowc' function should work at least twice as fast due to
1129 specialized callbacks in the iconv modules. Implemented by Bruno Haible.
1131 * With approriate thread add-ons cancelable functions are now implemented
1132 in libc.so as well. No need to call the function in libpthread. This
1133 change allowed to finally disable the incorrect and expensive handling
1134 of weak definition in ld.so.
1136 * Yet more PLT entries in libc.so have been removed. We finally arrived
1137 at the bare minimum. Startup times improved appropriately.
1139 * Support for the new Linux/x86 system call interface was added. The
1140 AT_SYSINFO auxiliary vector entry is recognized and handled.
1144 * Masahide Washizawa contributed iconv modules for IBM1163 and IBM1164
1147 * iconv (the program and the interface) now accepts empty names (excluding
1148 options like //TRANSLIT) to mean "use charset of current locale".
1150 * localedef can now transliterate characters in strings which are not in
1151 the provided charmap. The information from the input locale is used.
1153 * Prelinking support was added for ELF targets. This requires additional
1154 tools and recent versions of the GNU binutils. Contributed by Jakub Jelinek.
1156 * Read-only stdio streams now use mmap to speed up operation by eliminating
1157 copying and buffer underflows. To use add 'm' to the mode string of
1158 the fopen/fdopen/freopen call. Implemented by Ulrich Drepper.
1160 * The malloc functions were completely rewritten by Wolfram Gloger based
1161 on Doug Lea's malloc-2.7.0.c.
1163 * Isamu Hasegawa contributed a completely new and POSIX-conformant
1164 implementation of regex.
1166 * Bruno Haible upgraded the iconv and locale implementation to support
1169 * Contents of the LC_* and LANG environment variables in the CEN style are
1170 not recognized anymore. It never was used. Change by Ulrich Drepper.
1172 * The runtime (ld.so, libc, libpthread for Linux) now can handle the ELF
1173 thread-local storage (TLS) ABI on some platforms.
1174 Changes by Ulrich Drepper. SH support by Kaz Kojima.
1176 * Bruno Haible contributed iconv converters for ISO-2022-JP-3, SHIFT JIS-X0213,
1177 EUC-JISX0213, and TSCII.
1179 * New header <ifaddrs.h> with functions `getifaddrs' and `freeifaddrs':
1180 BSD-compatible interface for getting all network interface addresses.
1181 Implementation for IPv4 by Roland McGrath.
1183 * Loading of locale data is faster due to the introduction of a locale
1184 archive. Implemented by Roland McGrath and Ulrich Drepper.
1186 * Startup times are significantly reduced by not using exported functions
1187 inside the library itself. Changes by Jakub Jelinek, Roland McGrath,
1190 * Steven Munroe contributed a port to PowerPC64/Linux.
1194 * The Hurd now uses the GNU libio implementation of stdio rather than the
1195 old GNU stdio implementation, and uses a new ABI (libc.so.0.3).
1197 * The Hurd on x86 now has the `ioperm' function and <sys/io.h> header file
1198 with the same behavior as the Linux system call of the same name.
1202 * Stephen Moshier implemented log2, log10, powl and cbrtl for the
1203 128-bit long double format.
1205 * Masahide Washizawa contributed iconv modules for IBM1132, IBM1133, IBM1160,
1206 IBM1161, and IBM1162 charsets.
1208 * Andreas Jaeger contributed a port to x86-64/Linux.
1210 * Peter Bruin contributed a port to PowerPC/Hurd.
1212 * libc functions using I/O streams now can handle wide-oriented streams
1215 * optimizations in the dynamic linker. Binaries created by recent binutils
1216 versions start up quicker due to reduced time spent on relocations.
1218 * Support for use of gcc3 added by Jakub Jelinek and HJ Lu.
1222 * Stephen Moshier implemented cosh, expm1, log1p, acos, sinh, tanh,
1223 asinh, atanh, j0 for the 128-bit long double format.
1225 * Bruno Haible updated all the code handling Unicode in some form to
1226 support Unicode 3.1.
1228 * Speed of regex for single-byte locales is back to previous levels.
1229 Patch by Isamu Hasegawa.
1231 * Alpha, SPARC, and IA-64 now also using floating stacks.
1233 * Startup time of internationalized applications greatly improved through
1234 iconv cache. Use iconvconfig to generate the cache file.
1235 Contributed by Ulrich Drepper.
1237 * The IA-64 specific part of ld.so was rewritten to eliminate some pretty
1238 severe performance problems. Patch by David Mosberger.
1240 * The Hurd port got a lot more functionality like AIO, various stdio
1241 extensions, etc. Mainly done by Roland McGrath.
1243 * mtrace can now lookup symbols in shared libraries.
1247 * Intel's IA-64 math library is largely integrated. It provides fast and
1248 accurate implementatations for most basic and standard math functions
1249 in float, double, and long double format.
1251 * Stephen Moshier implemented j0, j1, jn, y0, y1, yn, lgamma, erf, erfc,
1252 and asin for the 96-bit long double format and asin, log, tan for the
1253 128-bit long double format.
1255 * The beginning of a last-bit accurate math library by IBM Haifa were added.
1256 The basic double functions exist today. Contributed by Abraham Ziv
1257 <ziv@il.ibm.com>, Moshe Olshansky <olshansk@il.ibm.com>, Ealan Henis
1258 <ealan@il.ibm.com>, and Anna Reitman <reitman@il.ibm.com>.
1260 * An asynchronous name lookup library was added. The interface is designed
1261 after POSIX AIO. The proposal was circulated beforehand to get comments.
1262 No negative ones came in. Implemented by Ulrich Drepper.
1264 * Port to S390/64bit contributed by Martin Schwidefsky
1265 <schwidefsky@de.ibm.com>.
1267 * David Mosberger <davidm@hpl.hp.com> implemented the setcontext family
1268 of functions for Linux/IA-64.
1270 * The RPC code is now thread safe. Threads can now use the same service
1271 of different services at the same time. Patch by Eric Norum
1272 <eric.norum@usask.ca> with some help by Ulrich Drepper.
1274 * Martin Schwidefsky <schwidefsky@de.ibm.com> implemented the setcontext
1275 family of functions for Linux/S390.
1277 * Ulrich Drepper <drepper@redhat.com> implemented the setcontext family
1278 of functions for Linux/x86.
1280 * Port to Linux/CRIS contributed by Axis Communications.
1284 * Lots of headers were cleaned up. Using the tool in the conform/ subdir
1285 we can now check for namespace violations and missing declarations. The
1286 result is that almost all headers are now Unix-compliant (as defined in
1287 the upcoming XPG6). The negative side is that some programs might need
1288 corrections, too, if they depend on the incorrect form of the headers in
1289 previous versions which defined too many symbols and included too many
1292 * regex now handles multibyte character sets correctly.
1293 Contributed by Isamu Hasegawa <isamu@yamato.ibm.com>.
1295 * iconv (the program) does now conform to the upcoming XPG6 and handles
1296 charmaps. Instead of the charset names the path of charmaps can be
1297 provided and the conversion happens based on this data.
1298 Contributed by Ulrich Drepper.
1300 * The locale program now provides detailed information about the installed
1305 only lists the names of the supported locales
1309 provides details such as country, language, and codeset name.
1310 Contributed by Ulrich Drepper.
1314 * The gencat program now parses the input file according to the charset
1315 selected by the LC_CTYPE category. This is important for stateful
1316 character sets. To make generating catalogs easier there is a way
1317 to overwrite the charset selected by the locale: before the first
1318 message or $ quote line the catalog can contain a line like
1320 $ codeset=ISO-8859-2
1322 to select the charset (ISO-8859-2 in this case).
1324 Implemented by Shinya Hanataka and Ulrich Drepper.
1326 * New codeset conversion modules: IBM-922 (Estonia PC codeset),
1327 IBM-1124 (Ukraine PC codeset), IBM-1129 (Vietnamese PC codeset).
1328 Contributed by Masahide Washizawa <washi@jp.ibm.com>.
1330 * Optimized string functions for Alpha ev6 and ev67 by Richard Henderson
1331 <rth@redhat.com> and Rick Gorton <rick.gorton@alpha-processor.com>.
1333 * The LANGUAGE environment variable is now ignored unless the locale is
1334 changed from the default "C" locale.
1336 * The usual bug fixes.
1340 * Greg McGary added runtime support for bounds checking using gcc's
1341 new -fbounded-pointers option. ix86 target is complete. PowerPC
1344 * Thorsten Kukuk added secure mode support to nscd.
1346 * The Berkeley db libraries have been removed.
1348 Related, the nss_db module is now in a separate package since it
1349 obviously requires a database library being available.
1351 * Wide character I/O streams implemented by Ulrich Drepper.
1353 * Functions from the extended socket API added by Ulrich Drepper.
1355 * Functions feenableexcept and fedisableexcept to control the
1356 behaviour of individual exceptions have been added by Andreas Jaeger.
1358 * ldconfig program added by Andreas Jaeger and Jakub Jelinek.
1360 * The resolver code has been updated from bind 8.2.3-T5B which supports
1361 threads. The integration was done by Andreas Jaeger, Adam D. Bradley,
1364 This change could in some situations effect backward compatibility. Since
1365 now `_res' is a thread-local instead of a global variable, modifying it
1366 in one thread does not have any effect in other threads.
1368 The resolver library was also extended to allow IPv6 as the transport
1369 protocol for the requests. This work was done by Stig Venaas.
1371 * Compatibility code for K&R C compilers has been removed from the
1372 header files. A ISO C compiler is needed to use the library
1373 (conforming to either C89 or C99 standard).
1375 * Complete rewrite of the localedef program to support multibyte character
1376 sets. Implement handling of ISO 14651 and ISO 14652. Rewrite strcoll,
1377 strxfrm, wcscoll, and wcsxfrm functions. Make isw*() functions work.
1378 Implemented by Ulrich Drepper.
1380 Bruno Haible significantly improved the generation and use of the data
1381 structures for the wide character tables.
1383 * Plural handling in gettext implemented by Ulrich Drepper.
1385 * The utmp daemon has been removed.
1387 * The port to MIPS-Linux has been finished by Andreas Jaeger.
1389 * A port to Hitachi SH3 and SH4 has been contributed by Kazumoto Kojima
1392 * POSIX clocks and timers implemented by Kaz Kylheku and Ulrich Drepper.
1394 * POSIX barriers implemented by Kaz Kylheku.
1396 * POSIX spawn function family implemented by Ulrich Drepper.
1398 * POSIX spinlocks are now available.
1400 * Timed wait functions for mutex, rwlock, and semaphores are implemented.
1402 * the configure option --enable-kernel=X.Y.Z allows to strip out
1403 compatibility for kernel versions before X.Y.Z. This is currently only
1404 implemented for Linux.
1406 * the sockaddr_in6 structure changed. The IPv6 working group added a new
1407 field sin6_scope_id. This means that all programs using IPv6 should be
1408 recompiled. Don't expect binary compatibility with previous glibc
1411 * various conversion modules for IBM character sets contributed by
1414 * IA-64 port by Jes Sorensen and HJ Lu.
1428 * New ISO C 9x function _Exit, imaxabs, and imaxdiv are added.
1430 * New xdr functions are added; some rpc functions are now 64bit clean.
1432 * Fixed a number of bugs and memory leaks (especially in NIS+ code).
1434 * Fixed known incompatibilities with glibc 2.0.
1436 * New functions lock64, strchrnul, rawmemchr, getutmp and getutmpx.
1438 * Optimized a number of functions (especially the ELF dynamic loader).
1440 * Update timezone data files.
1442 * lots of charmaps corrections
1444 * some new locale definitions and charmaps
1449 * Richard Henderson corrected size of struct timeval on Linux/Alpha to
1450 conform to POSIX member type requirements. Symbol versions have been
1451 adjusted as needed within the library, and for direct use by applications,
1452 but there is potential for problems if third-party libraries use
1453 struct timeval as part of their interface. This does not present
1454 a problem for X and other "essential" system libraries.
1456 * An additional locale model to support C++ Standard Library locale
1457 model and probably more was implemented by Ulrich Drepper.
1459 * Eric Youngdale and Ulrich Drepper implemented versioning of objects on
1462 * Miles Bader provided the `argp' function family to support hierachical
1463 command line argument parsing, layered on top of getopt.
1465 * strtod accepts new hexadecimal floating-point format from ISO C 9X.
1467 * printf has two new specifiers %a and %A to print hexadecimal flaoting-point
1470 * scanf recognizes the %a and %A format for scanning floating point numbers.
1472 * the new headers <stdint.h> and <inttypes.h> from ISO C 9X provides
1473 information and interfaces for the available integer types.
1475 * about 130 new math functions were added to implement the ISO C9x math
1478 * the new header <complex.h> contains definitions of the complex math
1479 functions from ISO C 9X.
1481 * the new header <tgmath.h> defines generic macros to use complex or
1482 real valued functions.
1484 * Thorsten Kukuk provided an implementation for NIS+, securelevel 0, 1 and 2.
1486 * Andreas Jaeger provided a test suite for the math library.
1488 * Mark Kettenis implemented the utmpx interface and an utmp daemon.
1490 * Ulrich Drepper added character set conversion functions (iconv).
1492 * Optimized string functions have been added.
1494 * The localedata addon is now part of glibc.
1496 * An implementation of profiling shared libraries was added by Ulrich Drepper.
1498 * Thorsten Kukuk and Ulrich Drepper provided an implementation for a caching
1499 daemon for NSS (nscd).
1501 Missing a better place here are some numbers on improvements. Under
1502 Linux 2.1.125 un-tar-ing the kernel sources takes
1506 using local files 12.19s 6.88s 22.91s
1508 using NIS 13.92s 8.91s 26.34s
1510 using NIS & nscd 10.37s 7.34s 25.30s
1512 using NIS+ 27.57s 30.37s 640.46s
1514 using NIS+ & nscd 10.25s 7.83s 26.51s
1516 using NIS & old nscd [1] 13.83s 8.32s 29.60s
1518 Keep in mind that non-namelookup related operations dominate above times.
1519 It was just a common complain that using NIS+ unpacking the kernel is
1522 [1] The old nscd implementation is not available anymore since it was
1523 distributed with glibc up to version 2.0.98 and thus is now replaced.
1525 * Tim Waugh provided an implementation of the POSIX.2 wordexp function family.
1527 * Mark Kettenis provided a Hesiod NSS module.
1529 * The ELF dynamic loader knows how to process dynamic string tokens ($ORIGIN
1530 and $PLATFORM) in RPATHs and similar strings (Ulrich Drepper).
1532 * rcmd can now handle netgroups (Dick Streefland).
1534 * A port to the ARM was contributed by Phil Blundell, Pat Beirne and Scott
1537 * Support for the IPv6 protocol has been added to the socket API, as per the
1538 latest draft standards.
1540 * Support for Linux 2.2 has been added.
1542 * Interface changes relative to the latest 2.0.x release:
1543 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1544 addseverity NEW: Unix98
1545 alphasort64 NEW: LFS
1546 argp_err_exit_status NEW: argp, GNU ext
1547 argp_error NEW: argp, GNU ext
1548 argp_failure NEW: argp, GNU ext
1549 argp_help NEW: argp, GNU ext
1550 argp_parse NEW: argp, GNU ext
1551 argp_program_bug_address NEW: argp, GNU ext
1552 argp_program_version NEW: argp, GNU ext
1553 argp_program_version_hook NEW: argp, GNU ext
1554 argp_state_help NEW: argp, GNU ext
1555 argp_usage NEW: argp, GNU ext
1556 authdes_create NEW: Secure RPC
1557 authdes_getucred NEW: Secure RPC
1558 authdes_pk_create NEW: Secure RPC
1559 backtrace NEW: GNU ext.
1560 backtrace_symbols NEW: GNU ext.
1561 backtrace_symbols_fd NEW: GNU ext.
1563 cacosf NEW: ISO C 9x
1564 cacosh NEW: ISO C 9x
1565 cacoshf NEW: ISO C 9x
1566 cacoshl NEW: ISO C 9x
1567 cacosl NEW: ISO C 9x
1574 casinf NEW: ISO C 9x
1575 casinh NEW: ISO C 9x
1576 casinhf NEW: ISO C 9x
1577 casinhl NEW: ISO C 9x
1578 casinl NEW: ISO C 9x
1580 catanf NEW: ISO C 9x
1581 catanh NEW: ISO C 9x
1582 catanhf NEW: ISO C 9x
1583 catanhl NEW: ISO C 9x
1584 catanl NEW: ISO C 9x
1585 cbc_crypt NEW: Secure RPC
1589 ccoshf NEW: ISO C 9x
1590 ccoshl NEW: ISO C 9x
1596 cimagf NEW: ISO C 9x
1597 cimagl NEW: ISO C 9x
1598 clearerr_locked REMOVED
1599 clntunix_create NEW: sunrpc ext
1601 clog10 NEW: ISO C 9x
1602 clog10f NEW: ISO C 9x
1603 clog10l NEW: ISO C 9x
1613 cprojf NEW: ISO C 9x
1614 cprojl NEW: ISO C 9x
1616 crealf NEW: ISO C 9x
1617 creall NEW: ISO C 9x
1622 csinhf NEW: ISO C 9x
1623 csinhl NEW: ISO C 9x
1626 csqrtf NEW: ISO C 9x
1627 csqrtl NEW: ISO C 9x
1631 ctanhf NEW: ISO C 9x
1632 ctanhl NEW: ISO C 9x
1634 des_setparity NEW: Secure RPC
1635 ecb_crypt NEW: Secure RPC
1636 endutxent NEW: Unix98
1638 exp10f NEW: ISO C 9x
1639 exp10l NEW: ISO C 9x
1643 fattach NEW: STREAMS
1644 fdetach NEW: STREAMS
1648 feclearexcept NEW: ISO C 9x
1649 fegetenv NEW: ISO C 9x
1650 fegetexceptflag NEW: ISO C 9x
1651 fegetround NEW: ISO C 9x
1652 feholdexcept NEW: ISO C 9x
1654 feraiseexcept NEW: ISO C 9x
1655 ferror_locked REMOVED
1656 fesetenv NEW: ISO C 9x
1657 fesetexceptflag NEW: ISO C 9x
1658 fesetround NEW: ISO C 9x
1659 fetestexcept NEW: ISO C 9x
1660 feupdateenv NEW: ISO C 9x
1661 fflush_locked REMOVED
1665 fgets_unlocked NEW: GNU ext.
1666 fileno_locked REMOVED
1678 fputc_locked REMOVED
1679 fputs_unlocked NEW: GNU ext.
1680 fread_unlocked NEW: GNU ext.
1685 fstatvfs NEW: Unix98
1689 ftruncate64 NEW: LFS
1691 fwrite_unlocked NEW: GNU ext.
1692 gai_strerror NEW: IPv6
1696 getchar_locked REMOVED
1698 getdate_err NEW: Unix98
1699 getdate_r NEW: GNU ext.
1701 getnameinfo NEW: IPv6
1702 getnetname NEW: Secure RPC
1703 getpmsg NEW: STREAMS
1704 getpt NEW: Unix98 PTY
1705 getrlimit64 NEW: LFS
1706 getutxent NEW: Unix98
1707 getutxid NEW: Unix98
1708 getutxline NEW: Unix98
1709 glob64 NEW: GNU ext.
1710 globfree64 NEW: GNU ext.
1711 gnu_get_libc_release NEW: GNU ext.
1712 gnu_get_libc_version NEW: GNU ext.
1713 grantpt NEW: Unix98 PTY
1714 host2netname NEW: Secure RPC
1716 iconv_close NEW: iconv
1717 iconv_open NEW: iconv
1718 if_freenameindex NEW: IPv6
1719 if_indextoname NEW: IPv6
1720 if_nameindex NEW: IPv6
1721 if_nametoindex NEW: IPv6
1722 in6addr_any NEW: IPv6
1723 in6addr_loopback NEW: IPv6
1724 inet6_isipv4mapped NEW: IPv6
1725 isastream NEW: STREAMS
1726 iswblank NEW: GNU ext.
1727 key_decryptsession NEW: Secure RPC
1728 key_decryptsession_pk NEW: Secure RPC
1729 key_encryptsession NEW: Secure RPC
1730 key_encryptsession_pk NEW: Secure RPC
1731 key_gendes NEW: Secure RPC
1732 key_get_conv NEW: Secure RPC
1733 key_secretkey_is_set NEW: Secure RPC
1734 key_setnet NEW: Secure RPC
1735 key_setsecret NEW: Secure RPC
1736 llrint NEW: ISO C 9x
1737 llrintf NEW: ISO C 9x
1738 llrintl NEW: ISO C 9x
1739 llround NEW: ISO C 9x
1740 llroundf NEW: ISO C 9x
1741 llroundl NEW: ISO C 9x
1746 lrintf NEW: ISO C 9x
1747 lrintl NEW: ISO C 9x
1748 lround NEW: ISO C 9x
1749 lroundf NEW: ISO C 9x
1750 lroundl NEW: ISO C 9x
1752 makecontext NEW: Unix98
1753 mempcpy NEW: GNU ext.
1756 modify_ldt NEW: kernel
1760 nearbyint NEW: ISO C 9x
1761 nearbyintf NEW: ISO C 9x
1762 nearbyintl NEW: ISO C 9x
1763 netname2host NEW: Secure RPC
1764 netname2user NEW: Secure RPC
1765 nexttoward NEW: ISO C 9x
1766 nexttowardf NEW: ISO C 9x
1767 nexttowardl NEW: ISO C 9x
1771 passwd2des NEW: Secure RPC
1773 pow10f NEW: GNU ext.
1774 pow10l NEW: GNU ext.
1777 printf_size NEW: GNU ext.
1778 printf_size_info NEW: GNU ext.
1779 profil_counter REMOVED
1780 pthread_mutexattr_getkind_np REPLACED
1781 pthread_mutexattr_setkind_np REPLACED
1782 ptsname NEW: Unix98 PTY
1783 ptsname_r NEW: Unix98 PTY
1785 putchar_locked REMOVED
1786 putgrent NEW: GNU ext.
1788 putpmsg NEW: STREAMS
1789 pututxline NEW: Unix98
1793 readdir64_r NEW: LFS
1794 remquo NEW: ISO C 9x
1795 remquof NEW: ISO C 9x
1796 remquol NEW: ISO C 9x
1798 roundf NEW: ISO C 9x
1799 roundl NEW: ISO C 9x
1801 scalbln NEW: ISO C 9x
1802 scalblnf NEW: ISO C 9x
1803 scalblnl NEW: ISO C 9x
1805 sendfile NEW: kernel
1806 setcontext NEW: Unix98
1807 setrlimit64 NEW: LFS
1808 setutxent NEW: Unix98
1810 sigignore NEW: Unix98
1811 sigqueue NEW: POSIX.1b
1812 sigrelse NEW: Unix98
1813 sigset NEW: POSIX.1b
1814 sigtimedwait NEW: POSIX.1b
1815 sigwaitinfo NEW: POSIX.1b
1816 sincos NEW: GNU ext.
1817 sincosf NEW: GNU ext.
1818 sincosl NEW: GNU ext.
1822 strcasestr NEW: GNU ext.
1823 strtoimax NEW: ISO C 9x
1824 strtoumax NEW: ISO C 9x
1825 strverscmp NEW: GNU ext.
1826 svcauthdes_stats NEW: Secure RPC
1827 svcunix_create NEW: sunrpc etx
1828 svcunixfd_create NEW: sunrpc ext
1829 swapcontext NEW: Unix98
1830 tcgetsid NEW: Unix98 PTY
1831 tdestroy NEW: GNU ext.
1832 tgamma NEW: ISO C 9x
1833 tgammaf NEW: ISO C 9x
1834 tgammal NEW: ISO C 9x
1838 truncf NEW: ISO C 9x
1839 truncl NEW: ISO C 9x
1841 unlockpt NEW: Unix98 PTY
1842 updwtmpx NEW: Unix98
1843 user2netname NEW: Secure RPC
1844 utmpxname NEW: Unix98
1845 versionsort NEW: GNU ext.
1846 versionsort64 NEW: GNU ext.
1848 wcscasecmp NEW: GNU ext.
1849 wcsncasecmp NEW: GNU ext.
1850 wcsnlen NEW: GNU ext.
1851 wcstoimax NEW: ISO C 9x
1852 wcstoll NEW: ISO C 9x
1853 wcstoull NEW: ISO C 9x
1854 wcstoumax NEW: ISO C 9x
1856 wordexp NEW: POSIX.2
1857 wordfree NEW: POSIX.2
1858 write_profiling REMOVED
1859 xdecrypt NEW: Secure RPC
1860 xdr_authdes_cred NEW: Secure RPC
1861 xdr_authdes_verf NEW: Secure RPC
1862 xdr_cryptkeyarg NEW: Secure RPC
1863 xdr_cryptkeyarg2 NEW: Secure RPC
1864 xdr_cryptkeyres NEW: Secure RPC
1865 xdr_getcredres NEW: Secure RPC
1866 xdr_key_netstarg NEW: Secure RPC
1867 xdr_key_netstres NEW: Secure RPC
1868 xdr_keybuf NEW: Secure RPC
1869 xdr_keystatus NEW: Secure RPC
1870 xdr_netnamestr NEW: Secure RPC
1871 xdr_sizeof NEW: Secure RPC
1872 xdr_unixcred NEW: sunrpc ext
1873 xencrypt NEW: Secure RPC
1874 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1885 * inet_ntoa is thread-safe
1887 * updwtmp is moved from libutil to libc
1889 * rewrite of cbrt function
1891 * update of timezone data
1905 * add atoll function
1907 * fix complex problems in Berkeley DB code
1909 * fix math functions
1913 * fixed lots of header problems (especially Linux/GNU specific)
1915 * dynamic loader preserves all registers
1917 * Roland McGrath provided support for handling of auxiliary objects in
1918 the ELF dynamic loader.
1920 * support for parallel builds is improved
1924 * GNU extensions are no longer declared by default. To enable them you
1925 must define the macro `_GNU_SOURCE' in your program or compile with
1928 * The library has changed from using GNU ld symbol aliases to using weak
1929 symbols where available. The ELF object file format supports weak
1930 symbols; GNU ld also supports weak symbols in the a.out format. (There
1931 is also now support for other GNU ld extensions in ELF. Use the
1932 `--with-elf' option to configure to indicate you have ELF, and
1933 `--with-gnu-ld' if using GNU ld.) This change resulted in the deletion
1934 of many files which contained only symbol aliases, reducing the size of
1935 the source and the compiled library; many other files were renamed to
1936 less cryptic names previously occupied by the symbol alias files.
1937 There is a new header file <elf.h> for programs which operate on
1938 files in the ELF format.
1940 * Converted to Autoconf version 2, so `configure' has more options.
1941 Run `configure --help' to see the details.
1943 * The library can now be configured to build profiling, highly-optimized
1944 (but undebuggable), and/or shared libraries (ELF with GNU ld only). The
1945 `--enable-profile', `--enable-omitfp', and `--enable-shared' options to
1946 `configure' enable building these extra libraries. The shared library is
1947 built by default when using both ELF and GNU ld. When shared libraries
1948 are enabled, the new library `-ldl' is available for arbitrary run-time
1949 loading of shared objects; its interface is defined in <dlfcn.h>. The
1950 new header file <link.h> gives access to the internals of the run-time
1951 dynamic linker, `ld.so'. The shell script `ldd' is similar to the
1952 application of same name on other systems and it provides information
1953 about dynamically linked binaries.
1955 * The C library now provides the run-time support code for profiling
1956 executables compiled with `-pg'. Programs can control the profiling code
1957 through the interface in <sys/gmon.h>. The `gmon.out' files written by
1958 the GNU C library can be read only by GNU `gprof' (from GNU binutils);
1959 the support for this file format was contributed by David Mosberger-Tang.
1961 * The math code has been replaced with a math library based on fdlibm from
1962 Sun, and modified by JT Conklin and Ulrich Drepper with i387 support, by
1963 Ian Taylor with `float' functions and by Ulrich Drepper with `long double'
1964 functions. The math functions now reside in a separate library, so
1965 programs using them will need to use `-lm' their linking commands.
1967 * John C. Bowman contributed optimized ix87 assembler inline functions.
1969 * Ulrich Drepper has contributed support for an `/etc/nsswitch.conf'
1970 mechanism similar to that found in Solaris 2. This is now used for the
1971 group, passwd, hosts, networks, services, protocols, rpc, ethers,
1972 shadow, netgroup, publickey, and alias databases. The `nsswitch.conf'
1973 file controls what services are used for each individual database. This
1974 works by loading shared libraries with names specified in `nsswitch.conf',
1975 so service modules can be changed or added at any time without even
1976 relinking any program. Currently there are the file, db, and NIS based
1977 NSS services available.
1979 * The new functions `strtoq' and `strtouq' parse integer values from
1980 strings, like `strtol' and `strtoul', but they return `long long int' and
1981 `unsigned long long int' values, respectively (64-bit quantities).
1983 * The new functions `strtof' and `strtold' parse floating-point values from
1984 strings, like `strtod', but they return `float' and `long double' values,
1985 respectively (on some machines `double' and `long double' are the same).
1987 * Ulrich Drepper has contributed new implementations of the floating-point
1988 printing and reading code used in the `printf' family of functions and
1989 `strtod', `strtof', and `strtold'. These new functions are perfectly
1990 accurate, and much faster than the old ones.
1992 * The implementation of the POSIX locale model was completely rewritten by
1993 Ulrich Drepper. This includes the new programs `localedef' and `locale'
1994 to compile the POSIX locale definition.
1996 * The former dummy implementations of the strcoll and strxfrm function are
1997 now replaced by fully functional code contributed by Ulrich Drepper. The
1998 collation information comes from the POSIX locale definitions.
2000 * The new header <langinfo.h> defines an interface for accessing
2001 various locale-dependent data (using the locale chosen with `setlocale').
2003 * Ulrich Drepper has contributed a new suite of functions for operation on
2004 wide-character and multibyte-character strings, in <wchar.h>;
2005 and classification and case conversion of wide characters, in <wctype.h>.
2006 These new functions are conforming to the ISO C, Amendement 1 specification.
2008 * There is now a second implementation of the standard I/O library available.
2009 It comes from GNU libg++ as was written by Per Bothner, heavily modified
2010 by Hongjiu Lu and made thread safe by Ulrich Drepper.
2012 * You can now use positional parameter specifications in format strings
2013 for the `printf' and `scanf' families of functions. For example,
2014 `printf ("Number %2$d, Mr %1$s\n", "Jones", 6);'' prints
2015 ``Number 6, Mr Jones''. This is mainly useful when providing different
2016 format strings for different languages, whose grammars may dictate
2017 different orderings of the values being printed. To support this
2018 feature, the interface for `register_printf_handler' has changed; see
2019 the header file <printf.h> for details.
2021 * The `printf' and `scanf' families of functions now understand a new
2022 formatting flag for numeric conversions: the ' flag (e.g. %'d or %'f) says
2023 to group numbers as indicated by the locale; for `scanf' and friends, this
2024 says to accept as valid only a number with all the proper grouping
2025 separators in the right places. In the default "C" locale, numbers are
2026 not grouped; but locales for specific countries will define the usual
2027 conventions (i.e. separate thousands with `,' in the US locale).
2029 * The pgrp functions have been regularized, slightly incompatibly but much
2030 less confusingly. The core functions are now `getpgid' and `setpgid',
2031 which take arguments for the PID to operate on; the POSIX.1 `getpgrp' (no
2032 argument) and BSD `setpgrp' (identical to `setpgid') functions are
2033 provided for compatibility. There is no longer an incompatible `getpgrp'
2034 with an argument declared under _BSD_SOURCE; no BSD code uses it.
2036 * The new header file <fts.h> and suite of functions simplify programs that
2037 operate on directory trees. This code comes from 4.4 BSD.
2039 * The resolver code has been updated from the BIND 4.9.5-P1 release.
2040 Parts of the code were heavily modified by Ulrich Drepper to fit in the
2041 NSS scheme used in glibc.
2043 * There is a new malloc debugging hook `__memalign_hook'.
2045 * There are new typedefs `ushort' for `unsigned short int' and `uint' for
2046 `unsigned int' in <sys/types.h>. These are for compatibility only and
2047 their use is discouraged.
2049 * The `-lmcheck' library to enable standard malloc debugging hooks is now
2050 done differently, so that it works even without GNU ld.
2052 * New function `euidaccess' checks allowed access to a file like `access',
2053 but using the effective IDs instead of the real IDs.
2055 * The time zone data files have been updated for the latest and greatest
2056 local time conventions of the countries of the world.
2058 * The new function `dirfd' extracts the file descriptor used by a DIR stream;
2061 * The new functions `ecvt', `fcvt', and `gcvt' provide an obsolete interface
2062 for formatting floating-point numbers. They are provided only for
2063 compatibility; new programs should use `sprintf' instead. There are
2064 also equivalent function for the `long double' floating-point type and
2065 all functions also exist in a reentrant form.
2067 * The new auxiliary library `-lutil' from 4.4 BSD contains various
2068 functions for maintaining the login-record files (primarily of use to
2069 system programs such as `login'), and convenient functions for
2070 allocating and initializing a pseudo-terminal (pty) device.
2072 * Ulrich Drepper has contributed new support for System V style
2073 shared memory and IPC on systems that support it.
2075 * Ulrich Drepper has contributed several miscellaneous new functions found
2076 in System V: The `hsearch' family of functions provide an effective
2077 implementation of hash tables; `a64l' and `l64a' provide a very simple
2078 binary to ASCII mapping; `drand48' and friends provide a 48-bit random
2081 * Ulrich Drepper has contributed new reentrant counterparts for the
2082 `random' and `hsearch' families of functions; `random_r', `hsearch_r', etc.
2084 * Ulrich Drepper has contributed new, highly-optimized versions of several
2085 string functions for the i486/Pentium family of processors.
2087 * Ulrich Drepper has updated the Linux-specific code, based largely
2088 on work done in Hongjiu Lu's version of GNU libc for Linux.
2089 The GNU library now supports Linux versions 2.0.10 and later,
2090 using the ELF object file format (i[3456]86-*-linux).
2092 * Andreas Schwab has ported the C library to Linux/m68k (m68k-*-linux).
2094 * David Mosberger-Tang and Richard Henderson have ported the C library
2095 to Linux/Alpha (alpha-*-linux). Richard Henderson contributed the
2096 dynamic linking support for ELF/Alpha.
2098 * Richard Henderson contributed several Alpha optimized assembler function
2099 for arithmetic and string handling.
2101 * Ulrich Drepper has contributed a new set of message catalog functions to
2102 support multiple languages using the <libintl.h> interface, for use with
2103 his new package GNU gettext. Translation volunteers have contributed
2104 catalogs of the library's messages in Spanish, German, and Korean.
2106 * For compatibility with XPG4, Ulrich Drepper has contributed the `gencat'
2107 program and the `catgets' function for reading the catalog files it
2108 creates. (The <libintl.h> interface is preferred; we include the
2109 <nl_types.h> interface using `catgets' only for source compatibility with
2110 programs already written to use it.)
2112 * New header file <values.h> gives SVID-compatible names for <limits.h>
2115 * Various new macros, declarations, and small header files for compatibility
2118 * New function `group_member' is a convenient way to check if a process has
2119 a given effective group ID.
2121 * When using GCC 2.7 and later, the socket functions are now declared in a
2122 special way so that passing an argument of type `struct sockaddr_in *',
2123 `struct sockaddr_ns *', or `struct sockaddr_un *' instead of the generic
2124 `struct sockaddr *' type, does not generate a type-clash warning.
2126 * New function `error' declared in header file <error.h> is a convenient
2127 function for printing error messages and optionally exiting; this is the
2128 canonical function used in GNU programs. The new functions `err', `warn',
2129 and friends in header file <err.h> are the canonical 4.4 BSD interface for
2130 doing the same thing.
2132 * The <glob.h> interface has several new flags from 4.4 BSD that extend the
2133 POSIX.2 `glob' function to do ~ and {...} expansion.
2135 * New function `unsetenv' complements `setenv' for compatibility with 4.4 BSD.
2136 `clearenv' which is used in POSIX.9 is also available.
2138 * New function `getsid' returns session ID number on systems that support it.
2140 * We have incorporated the 4.4 BSD `db' library (version 1.85). New header
2141 files <db.h> and <mpool.h> provide a rich set of functions for several
2142 types of simple databases stored in memory and in files, and <ndbm.h> is
2143 an old `ndbm'-compatible interface using the `db' functions. Link with
2144 `-ldb' to get these functions.
2146 * New macro `strdupa' copies a string like `strdup', but uses local stack
2147 space from `alloca' instead of dynamic heap space from `malloc'.
2149 * New function `strnlen' is like `strlen' but searches only a given maximum
2150 number of characters for the null terminator. `stpncpy', `strndup' and
2151 `strndupa' are similar variants for the `stpcpy', `strdup' and `strdupa'
2154 * New function `statfs' in header <sys/statfs.h>.
2156 * The new <argz.h> and <envz.h> interfaces contributed by Miles Bader
2157 provide convenient functions for operating on blocks of null-terminated
2160 * A new suite of functions in <utmp.h> handle all the details of reading
2161 and writing the utmp file.
2163 * An implementation of the NIS/YP(tm) based NSS service was contributed by
2166 * Paul Eggert and Ulrich Drepper modified the `strftime' function to be
2167 completely POSIX compliant and also implemented the extended functionality
2168 to handle alternate digit representation and alternate era date formats.
2170 * Ulrich Drepper provided an implementation of the `strptime' function
2171 defined in XPG4.2 which transforms a string into a `struct tm' value.
2173 * Paul Eggert provided the tzselect shell script as part of the timezone
2174 code. The shell script makes it easy to select the correct timezone
2177 * The implementation of the malloc family of functions is completely replaced
2178 by a new implementation by Doug Lea with many improvements by Wolfram Gloger.
2179 The implementation uses the mmap function (if available) and it is
2180 optimized for the use in multi threaded programs.
2182 * Ulrich Drepper contributed a MD5 "encryption" for the crypt family of
2183 functions. This new functionality is usable by specifying a special
2184 salt string and it is compatible with implementation on *BSD systems.
2186 * Lots of functions from the XPG4.2 standard were added by Ulrich Drepper:
2187 `getsubopt' to handle second level command line options, `bsd_signal'
2188 to access BSD style `signal' functionality, the obsolete `regexp' style
2191 * the `lchown' function is available on system which support this
2194 * The implementation of the shadow password handling function was contributed
2197 * David Mosberger-Tang changed the SunRPC implementation to be 64bit safe.
2199 * POSIX.1g support was added. The <sys/select.h> header is available,
2200 `isfdtype' and `pselect' are implemented. Craig Metz contributed an
2201 implementation of `getaddrinfo'.
2205 * For cross-compilation you should now set `BUILD_CC' instead of `HOST_CC'.
2207 * New header file <fstab.h> and new functions `getfsspec', `getfsent' and
2208 friends, for parsing /etc/fstab. This code comes from 4.4 BSD.
2210 * The new function `daemon' from 4.4 BSD is useful for server programs that
2211 want to put themselves in the background.
2213 * Joel Sherrill has contributed support for several standalone boards that
2214 run without an operating system.
2216 * `printf', `scanf' and friends now accept a `q' type modifier for long
2217 long int as well as `ll'. Formats using these might be `%qu' or `%lld'.
2219 * All of the code taken from BSD (notably most of the math and networking
2220 routines) has been updated from the BSD 4.4-Lite release.
2222 * The resolver code has been updated from the BIND-4.9.3-BETA9 release.
2224 * The new functions `getdomainname' and `setdomainname' fetch or change the
2225 YP/NIS domain name. These are system calls which exist on systems which
2228 * The time zone data files have been updated for the latest international
2231 * The SunRPC programs `portmap' and `rpcinfo' are now installed in
2232 $(sbindir) (usually /usr/local/sbin) instead of $(bindir).
2236 * The C library now includes support for Sun RPC, from Sun's free
2237 RPCSRC-4.0 distribution. The `portmap', `rpcinfo', and `rpcgen' programs
2238 are included. (There is still no support for YP.)
2240 * Tom Quinn has contributed a port of the C library to SGI machines running
2241 Irix 4 (mips-sgi-irix4).
2243 * The new `lockf' function is a simplified interface to the locking
2244 facilities of `fcntl', included for compatibility.
2246 * New time functions `timegm', `timelocal', and `dysize' for compatibility.
2248 * New header file <sys/timeb.h> and new function `ftime' for compatibility.
2250 * New header files <poll.h> and <sys/poll.h> and new function `poll' for
2253 * The error message printed by `assert' for a failed assertion now includes
2254 the name of the program (if using GNU ld) and the name of the calling
2255 function (with versions of GCC that support this).
2257 * The `psignal' function is now declared in <signal.h>, not <stdio.h>.
2259 * The library now includes the <sys/mman.h> header file and memory
2260 management functions `mmap', `munmap', `mprotect', `msync', and
2261 `madvise', on systems that support those facilities.
2263 * The interface for `mcheck' has changed slightly: the function called to
2264 abort the program when an allocation inconsistency is detected now takes
2265 an argument that indicates the type of failure. The new function
2266 `mprobe' lets you request a consistency check for a particular block at
2267 any time (checks are normally done only when you call `free' or `realloc'
2270 * It is now possible to easily cross-compile the C library, building on one
2271 system a library to run on another machine and/or operating system. All
2272 you need to do is set the variable `HOST_CC' in `configparms' to the
2273 native compiler for programs to run on the machine you are building on (a
2274 few generator programs are used on Unix systems); set `CC' to the
2277 * The new function `fexecve' (only implemented on the GNU system) executes
2278 a program file given a file descriptor already open on the file.
2282 * Brendan Kehoe has contributed most of a port to the DEC Alpha
2283 running OSF/1 (alpha-dec-osf1). He says it is 75% complete.
2285 * You can set the variable `libprefix' in `configparms' to specify a prefix
2286 to be prepended to installed library files; this makes it easy to install
2287 the GNU C library to be linked as `-lgnuc' or whatever.
2289 * The new `stpncpy' is a cross between `stpcpy' and `strncpy': It
2290 copies a limited number of characters from a string, and returns the
2291 address of the last character written.
2293 * You no longer need to check for whether the installed `stddef.h' is
2294 compatible with the GNU C library. configure now checks for you.
2296 * You can now define a per-stream `fileno' function to convert the
2297 stream's cookie into an integral file descriptor.
2299 * ``malloc (0)'' no longer returns a null pointer. Instead, it
2300 allocates zero bytes of storage, and returns a unique pointer which
2301 you can pass to `realloc' or `free'. The behavior is undefined if
2302 you dereference this pointer.
2304 * The C library now runs on Sony NEWS m68k machines running either
2305 NewsOS 3 or NewsOS 4.
2307 * The new `syscall' function is a system-dependent primitive function
2308 for invoking system calls. It has the canonical behavior on Unix
2309 systems, including unreliable return values for some calls (such as
2310 `pipe', `fork' and `getppid').
2312 * The error code `EWOULDBLOCK' is now obsolete; it is always defined
2313 to `EAGAIN', which is the preferred name. On systems whose kernels
2314 use two distinct codes, the C library now translates EWOULDBLOCK to
2315 EAGAIN in every system call function.
2319 * The GNU C Library Reference Manual is now distributed with the library.
2320 `make dvi' will produce a DVI file of the printed manual.
2321 `make info' will produce Info files that you can read on line using C-h i
2322 in Emacs or the `info' program.
2323 Please send comments on the manual to bug-glibc-manual@gnu.org.
2325 * The library now supports SVR4 on i386s (i386-unknown-sysv4).
2327 * Brendan Kehoe has contributed a port to Sun SPARCs running Solaris 2.
2329 * Jason Merrill has contributed a port to the Sequent Symmetry running
2330 Dynix version 3 (i386-sequent-dynix).
2332 * The library has been ported to i386s running SCO 3.2.4 (also known as SCO
2333 ODT 2.0; i386-unknown-sco3.2.4) or SCO 3.2 (i386-unknown-sco3.2).
2335 * New function `memory_warnings' lets you arrange to get warnings when
2336 malloc is running out of memory to allocate, like Emacs gives you.
2338 * The C library now contains the relocating allocator used in Emacs 19 for
2339 its editing buffers. This allocator (ralloc) minimizes allocation
2340 overhead and fragmentation by moving allocated regions around whenever it
2341 needs to. You always refer to a ralloc'd region with a "handle" (a
2342 pointer to a pointer--an object of type `void **').
2344 * There is a new `printf' format: `%m' gives you the string corresponding
2345 to the error code in `errno'.
2347 * In `scanf' formats, you can now use `%as' or `%a[' to do the normal `%s'
2348 or `%[' conversion, but instead of filling in a fixed-sized buffer you
2349 pass, the `a' modifier says to fill in a `char **' you pass with a
2352 * The `fnmatch' function supports the new flag bits `FNM_LEADING_DIR' and
2353 `FNM_CASEFOLD'. `FNM_LEADING_DIR' lets a pattern like `foo*' match a
2354 name like `foo/bar'. `FNM_CASEFOLD' says to ignore case in matching.
2356 * `mkstemp' is a traditional Unix function to atomically create and open a
2357 uniquely-named temporary file.
2361 * The standard location for the file that says what the local timezone is
2362 has changed again. It is now `/usr/local/etc/localtime' (or more
2363 precisely, `${prefix}/etc/localtime') rather than `/etc/localtime'.
2365 * The distribution no longer contains any files with names longer than 14
2368 * `struct ttyent' has two new flag bits: TTY_TRUSTED and TTY_CONSOLE.
2369 These are set by the new `trusted' and `console' keywords in `/etc/ttys'.
2371 * New functions `ttyslot' and `syslog' from 4.4 BSD.
2375 * The configuration process has changed quite a bit. The `configure'
2376 script is now used just like the configuration scripts for other GNU
2377 packages. The `sysdeps' directory hierarchy is much rearranged.
2378 The file `INSTALL' explains the new scheme in detail.
2380 * The header files no longer need to be processed into ANSI C and
2381 traditional C versions. There is just one set of files to install, and
2382 it will work with ANSI or old C compilers (including `gcc -traditional').
2384 * Brendan Kehoe and Ian Lance Taylor have ported the library to the
2385 MIPS DECStation running Ultrix 4.
2387 * The Sun 4 startup code (crt0) can now properly load SunOS 4 shared libraries.
2388 Tom Quinn contributed the initial code. The GNU C library can NOT yet be
2389 made itself into a shared library.
2391 * Yet further improved support for the i386, running 4.3 BSD-like systems
2392 (such as Mach 3 with the Unix single-server), or System V.
2394 * New function `strncasecmp' to do case-insensitive string comparison
2395 with limited length.
2397 * New function `strsep' is a reentrant alternative to `strtok'.
2399 * New functions `scandir' and `alphasort' for searching directories.
2401 * New function `setenv' is a better interface to `putenv'.
2403 * Ian Lance Taylor has contributed an implementation of the SVID `ftw'
2404 function for traversing a directory tree.
2406 * The GNU obstack package is now also part of the C library.
2407 The new function `open_obstack_stream' creates a stdio stream that
2408 writes onto an obstack; `obstack_printf' and `obstack_vprintf' do
2409 formatted output directly to an obstack.
2411 * Miscellaneous new functions: reboot, nice, sigaltstack (4.4 BSD only),
2412 cfmakeraw, getusershell, getpass, swab, getttyent, seteuid, setegid.
2414 * `FNM_FILE_NAME' is another name for `FNM_PATHNAME', used with `fnmatch'.
2416 * The new functions `strfry' and `memfrob' do mysterious and wonderful
2417 things to your strings.
2419 * There are some new test programs: test-fseek, testmb, and testrand.
2421 * Some work has been done to begin porting the library to 4.4 BSD and Linux.
2422 These ports are not finished, but are a good starting place for really
2423 supporting those systems.
2425 * `/etc/localtime' is now the standard location for the file that says what
2426 the local timezone is, rather than `/usr/local/lib/zoneinfo/localtime'.
2427 This follows the general principle that `/etc' is the place for all local
2428 configuration files.
2430 * The C library header files now use `extern "C"' when used by the C++
2431 compiler, so the C library should now work with C++ code.
2433 * The header file <bstring.h> is gone. <string.h> now declares bcopy,
2434 bcmp, bzero, and ffs. (Update: nowadays these functions are declared
2437 * Mike Haertel (of GNU e?grep and malloc fame) has written a new sorting
2438 function which uses the `merge sort' algorithm, and is said to be
2439 significantly faster than the old GNU `qsort' function. Merge sort is
2440 now the standard `qsort' function. The new algorithm can require a lot
2441 of temporary storage; so, the old sorting function is called when the
2442 required storage is not available.
2444 * The C library now includes Michael Glad's Ultra Fast Crypt, which
2445 provides the Unix `crypt' function, plus some other entry points.
2447 * The code and header files taken from 4.4 BSD have been updated with the
2448 latest files released from Berkeley.
2450 ----------------------------------------------------------------------
2451 Copyright information:
2453 Copyright (C) 1992-2014 Free Software Foundation, Inc.
2455 Permission is granted to anyone to make or distribute verbatim copies
2456 of this document as received, in any medium, provided that the
2457 copyright notice and this permission notice are preserved,
2458 thus giving the recipient permission to redistribute in turn.
2460 Permission is granted to distribute modified versions
2461 of this document, or of portions of it,
2462 under the above conditions, provided also that they
2463 carry prominent notices stating who last changed them.
2466 version-control: never
projects / platform / upstream / glibc.git / blob