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1 GNU C Library NEWS -- history of user-visible changes.
2 Copyright (C) 1992-2014 Free Software Foundation, Inc.
3 See the end for copying conditions.
5 Please send GNU C library bug reports via <http://sourceware.org/bugzilla/>
6 using `glibc' in the "product" field.
7 \f
8 Version 2.20
10 * The following bugs are resolved with this release:
12 15347, 15804, 15894, 16002, 16198, 16284, 16357, 16447, 16532, 16545,
13 16574, 16599, 16600, 16609, 16610, 16611, 16613, 16623, 16632, 16634,
14 16639, 16642, 16649, 16670, 16674, 16677, 16680, 16683, 16689, 16695,
15 16701, 16706, 16707, 16712, 16713, 16714, 16731, 16743, 16758, 16759,
16 16760.
18 * Running the testsuite no longer terminates as soon as a test fails.
19 Instead, a file tests.sum (xtests.sum from "make xcheck") is generated,
20 with PASS or FAIL lines for individual tests. A summary of the results is
21 printed, including a list of failing lists, and "make check" exits with
22 error status if there were any unexpected failures. "make check
23 stop-on-test-failure=y" may be used to keep the old behavior.
25 * The am33 port, which had not worked for several years, has been removed
26 from ports.
28 * The _BSD_SOURCE and _SVID_SOURCE feature test macros are no longer
29 supported; they now act the same as _DEFAULT_SOURCE (but generate a
30 warning). Except for cases where _BSD_SOURCE enabled BSD interfaces that
31 conflicted with POSIX (support for which was removed in 2.19), the
32 interfaces those macros enabled remain available when compiling with
33 _GNU_SOURCE defined, with _DEFAULT_SOURCE defined, or without any feature
34 test macros defined.
35 \f
36 Version 2.19
38 * The following bugs are resolved with this release:
40 156, 387, 431, 762, 832, 926, 2801, 4772, 6786, 6787, 6807, 6810, 6981,
41 7003, 9721, 9954, 10253, 10278, 11087, 11157, 11214, 12100, 12486, 12751,
42 12986, 13028, 13982, 13985, 14029, 14032, 14120, 14143, 14155, 14286,
43 14547, 14699, 14752, 14782, 14876, 14910, 15004, 15048, 15073, 15089,
44 15128, 15218, 15268, 15277, 15308, 15362, 15374, 15400, 15425, 15427,
45 15483, 15522, 15531, 15532, 15593, 15601, 15608, 15609, 15610, 15632,
46 15640, 15670, 15672, 15680, 15681, 15723, 15734, 15735, 15736, 15748,
47 15749, 15754, 15760, 15763, 15764, 15797, 15799, 15825, 15843, 15844,
48 15846, 15847, 15849, 15850, 15855, 15856, 15857, 15859, 15867, 15886,
49 15887, 15890, 15892, 15893, 15895, 15897, 15901, 15905, 15909, 15915,
50 15917, 15919, 15921, 15923, 15939, 15941, 15948, 15963, 15966, 15968,
51 15985, 15988, 15997, 16032, 16034, 16036, 16037, 16038, 16041, 16046,
52 16055, 16071, 16072, 16074, 16077, 16078, 16103, 16112, 16143, 16144,
53 16146, 16150, 16151, 16153, 16167, 16169, 16172, 16195, 16214, 16245,
54 16271, 16274, 16283, 16289, 16293, 16314, 16316, 16330, 16337, 16338,
55 16356, 16365, 16366, 16369, 16372, 16375, 16379, 16381, 16384, 16385,
56 16386, 16387, 16390, 16394, 16398, 16400, 16407, 16408, 16414, 16430,
57 16431, 16453, 16474, 16506, 16510, 16529
59 * Slovenian translations for glibc messages have been contributed by the
60 Translation Project's Slovenian team of translators.
62 * The public headers no longer use __unused nor __block. This change is to
63 support compiling programs that are derived from BSD sources and use
64 __unused internally, and to support compiling with Clang's -fblock
65 extension which uses __block.
67 * CVE-2012-4412 The strcoll implementation caches indices and rules for
68 large collation sequences to optimize multiple passes. This cache
69 computation may overflow for large collation sequences and may cause a
70 stack or buffer overflow. This is now fixed to use a slower algorithm
71 which does not use a cache if there is an integer overflow.
73 * CVE-2012-4424 The strcoll implementation uses malloc to cache indices and
74 rules for large collation sequences to optimize multiple passes and falls
75 back to alloca if malloc fails, resulting in a possible stack overflow.
76 The implementation now falls back to an uncached collation sequence lookup
77 if malloc fails.
79 * CVE-2013-4788 The pointer guard used for pointer mangling was not
80 initialized for static applications resulting in the security feature
81 being disabled. The pointer guard is now correctly initialized to a
82 random value for static applications. Existing static applications need
83 to be recompiled to take advantage of the fix (bug 15754).
85 * CVE-2013-4237 The readdir_r function could write more than NAME_MAX bytes
86 to the d_name member of struct dirent, or omit the terminating NUL
87 character. (Bugzilla #14699).
89 * CVE-2013-4332 The pvalloc, valloc, memalign, posix_memalign and
90 aligned_alloc functions could allocate too few bytes or corrupt the
91 heap when passed very large allocation size values (Bugzilla #15855,
92 #15856, #15857).
94 * CVE-2013-4458 Stack overflow in getaddrinfo with large number of results
95 for AF_INET6 has been fixed (Bugzilla #16072).
97 * New locales: ak_GH, anp_IN, ar_SS, cmn_TW, hak_TW, lzh_TW, nan_TW, pap_AW,
98 pap_CW, quz_PE, the_NP.
100 * Substantially revised locales: gd_GB, ht_HT
102 * The LC_ADDRESS field was updated to support country_car for almost all
103 supported locales.
105 * ISO 1427 definitions were updated.
107 * ISO 3166 definitions were updated.
109 * The localedef utility now supports --big-endian and --little-endian
110 command-line options to generate locales for a different system from that
111 for which the C library was built.
113 * Binary locale files now only depend on the endianness of the system for
114 which they are generated and not on other properties of that system. As a
115 consequence, binary files generated with new localedef may be incompatible
116 with old versions of the GNU C Library, and binary files generated with
117 old localedef may be incompatible with this version of the GNU C Library,
118 in the following circumstances:
120 + Locale files may be incompatible on m68k systems.
122 + Locale archive files (but not separate files for individual locales) may
123 be incompatible on systems where plain "char" is signed.
125 * The configure option --disable-versioning has been removed. Builds with
126 --disable-versioning had not worked for several years.
128 * ISO 639 definitions were updated for Chiga (cgg) and Chinese (gan, hak, czh,
129 cjy, lzh, cmn, mnp, cdo, czo, cpx, wuu, hsn, yue).
131 * SystemTap probes for malloc have been introduced.
133 * SystemTap probes for slow multiple precision fallback paths of
134 transcendental functions have been introduced.
136 * Support for powerpc64le has been added.
138 * The soft-float powerpc port now supports e500 processors.
140 * Support for STT_GNU_IFUNC symbols added for ppc32/power4+ and ppc64.
142 * A new feature test macro _DEFAULT_SOURCE is available to enable the same
143 set of header declarations that are enabled by default, even when other
144 feature test macros or compiler options such as -std=c99 would otherwise
145 disable some of those declarations.
147 * The _BSD_SOURCE feature test macro no longer enables BSD interfaces that
148 conflict with POSIX. The libbsd-compat library (which was a dummy library
149 that did nothing) has also been removed.
151 * Preliminary documentation about Multi-Thread, Async-Signal and
152 Async-Cancel Safety has been added.
153 \f
154 Version 2.18
156 * The following bugs are resolved with this release:
158 2546, 2560, 5159, 6809, 7006, 10060, 10062, 10283, 10357, 10686, 11120,
159 11561, 12310, 12387, 12492, 12515, 12723, 13550, 13889, 13951, 13988,
160 14142, 14176, 14200, 14256, 14280, 14293, 14317, 14327, 14478, 14496,
161 14582, 14686, 14812, 14888, 14894, 14907, 14908, 14909, 14920, 14952,
162 14964, 14981, 14982, 14985, 14991, 14994, 14996, 15000, 15003, 15006,
163 15007, 15014, 15020, 15022, 15023, 15036, 15054, 15055, 15062, 15078,
164 15084, 15085, 15086, 15100, 15160, 15214, 15221, 15232, 15234, 15283,
165 15285, 15287, 15304, 15305, 15307, 15309, 15327, 15330, 15335, 15336,
166 15337, 15339, 15342, 15346, 15359, 15361, 15366, 15380, 15381, 15394,
167 15395, 15405, 15406, 15409, 15416, 15418, 15419, 15423, 15424, 15426,
168 15429, 15431, 15432, 15441, 15442, 15448, 15465, 15480, 15485, 15488,
169 15490, 15492, 15493, 15497, 15506, 15529, 15536, 15553, 15577, 15583,
170 15618, 15627, 15631, 15654, 15655, 15666, 15667, 15674, 15711, 15755,
171 15759.
173 * CVE-2013-2207 Incorrectly granting access to another user's pseudo-terminal
174 has been fixed by disabling the use of pt_chown (Bugzilla #15755).
175 Distributions can re-enable building and using pt_chown via the new configure
176 option `--enable-pt_chown'. Enabling the use of pt_chown carries with it
177 considerable security risks and should only be used if the distribution
178 understands and accepts the risks.
180 * CVE-2013-0242 Buffer overrun in regexp matcher has been fixed (Bugzilla
181 #15078).
183 * CVE-2013-1914 Stack overflow in getaddrinfo with many results has been
184 fixed (Bugzilla #15330).
186 * Add support for calling C++11 thread_local object destructors on thread
187 and program exit. This needs compiler support for offloading C++11
188 destructor calls to glibc.
190 * Improved worst case performance of libm functions with double inputs and
191 output.
193 * Support for priority inherited mutexes in pthread condition variables on
194 non-x86 architectures.
196 * Port to Xilinx MicroBlaze contributed by David Holsgrove.
198 * Optimized string functions for AArch64. Implemented by Marcus Shawcroft.
200 * Optimized string functions for ARM. Implemented by Will Newton and
201 Richard Henderson.
203 * Optimized libm functions for SPARC. Implemented by David S. Miller.
205 * Support for building more of ARM glibc as Thumb-2 code. Implemented by
206 Richard Henderson.
208 * Support for building most of MIPS glibc as MIPS16 code. Implemented by
209 Chung-Lin Tang, Maciej W. Rozycki and Maxim Kuvyrkov.
211 * Added a benchmark framework to track performance of functions in glibc.
213 * New <math.h> macro named issignaling to check for a signaling NaN (sNaN).
214 It is based on draft TS 18661 and currently enabled as a GNU extension.
216 * On Linux, the clock function now uses the clock_gettime system call
217 for improved precision, rather than old times system call.
219 * Added support for version-3 tz format files. This is needed when using
220 the tz database release 2013e or later, and affects a few unusual cases --
221 currently only TZ='America/Godthab' for time stamps after 2037.
223 * Added new API functions pthread_getattr_default_np and
224 pthread_setattr_default_np to get and set the default pthread
225 attributes of a process.
227 * Added support for TSX lock elision for pthread mutexes on i386 and x86-64.
228 This may improve lock scaling of existing programs on TSX capable systems.
229 When the --enable-lock-elision=yes parameter is specified at configure
230 time lock elision will be enabled by default for all PTHREAD_MUTEX_DEFAULT
231 mutexes.
233 * Support added for AT_HWCAP2 (to coincide with Linux kernel 3.10
234 availability). Implemented by Ryan S. Arnold.
236 * Support added for POWER8 platform. Implemented by Ryan S. Arnold.
237 \f
238 Version 2.17
240 * The following bugs are resolved with this release:
242 1349, 3439, 3479, 3665, 5044, 5246, 5298, 5400, 6530, 6677, 6778, 6808,
243 9685, 9914, 10014, 10038, 10114, 10191, 10631, 10873, 11438, 11607, 11638,
244 11741, 12140, 13013, 13412, 13542, 13601, 13603, 13604, 13629, 13679,
245 13696, 13698, 13717, 13741, 13759, 13761, 13763, 13881, 13939, 13950,
246 13952, 13966, 14042, 14047, 14090, 14150, 14151, 14152, 14154, 14157,
247 14166, 14173, 14195, 14197, 14237, 14246, 14251, 14252, 14283, 14298,
248 14303, 14307, 14328, 14331, 14336, 14337, 14347, 14349, 14368, 14376,
249 14417, 14447, 14459, 14476, 14477, 14501, 14505, 14510, 14516, 14518,
250 14519, 14530, 14532, 14538, 14543, 14544, 14545, 14557, 14562, 14568,
251 14576, 14579, 14583, 14587, 14595, 14602, 14610, 14621, 14638, 14645,
252 14648, 14652, 14660, 14661, 14669, 14672, 14683, 14694, 14716, 14719,
253 14743, 14767, 14783, 14784, 14785, 14793, 14796, 14797, 14801, 14803,
254 14805, 14807, 14811, 14815, 14821, 14822, 14824, 14828, 14831, 14833,
255 14835, 14838, 14856, 14863, 14865, 14866, 14868, 14869, 14871, 14872,
256 14879, 14889, 14893, 14898, 14914.
258 * Optimization of memcpy for MIPS.
260 * CVE-2011-4609 svc_run() produces high cpu usage when accept fails with
261 EMFILE has been fixed (Bugzilla #14889).
263 * The add-on ports collection is now distributed in the "ports" subdirectory
264 of the main GNU C Library distribution, rather than separately.
266 * Port to ARM AArch64 contributed by Linaro.
268 * Support for STT_GNU_IFUNC symbols added for s390 and s390x.
269 Optimized versions of memcpy, memset, and memcmp added for System z10 and
270 zEnterprise z196.
271 Implemented by Andreas Krebbel.
273 * The new function secure_getenv allows secure access to the environment,
274 returning NULL if running in a SUID/SGID process. This function replaces
275 the internal function __secure_getenv.
277 * SystemTap static probes have been added into the dynamic linker.
278 Implemented by Gary Benson.
280 * Optimizations of string functions strstr, strcasestr and memmem.
281 Implemented by Maxim Kuvyrkov.
283 * The minimum Linux kernel version that this version of the GNU C Library
284 can be used with is 2.6.16.
286 * Optimizations of string functions memchr, wcschr, wcscpy, and wcsrchr for
287 powerpc POWER7. Implemented by Will Schmidt.
289 * New configure option --disable-nscd builds the C library such that it
290 never attempts to contact the Name Service Caching Daemon (nscd).
291 New configure option --disable-build-nscd avoids building nscd itself;
292 this is the default if --disable-nscd is used.
294 * Improved support for cross-compilation, including cross-testing and
295 bootstrap builds without a previously built glibc.
297 * Several testsuite tests are now able to test multiple IFUNC variants of an
298 interface, rather than just testing the one that would be chooen by
299 default.
301 * New configure options --with-bugurl and --with-pkgversion, for
302 distributors to use to embed their bug-reporting and package version
303 information in --help and --version output.
305 * The ttyname and ttyname_r functions on Linux now fall back to searching for
306 the tty file descriptor in /dev/pts or /dev if /proc is not available. This
307 allows creation of chroots without the procfs mounted on /proc.
309 * The `crypt' function now fails if passed salt bytes that violate the
310 specification for those values. On Linux, the `crypt' function will
311 consult /proc/sys/crypto/fips_enabled to determine if "FIPS mode" is
312 enabled, and fail on encrypted strings using the MD5 or DES algorithm
313 when the mode is enabled.
315 * The `clock_*' suite of functions (declared in <time.h>) is now available
316 directly in the main C library. Previously it was necessary to link with
317 -lrt to use these functions. This change has the effect that a
318 single-threaded program that uses a function such as `clock_gettime' (and
319 is not linked with -lrt) will no longer implicitly load the pthreads
320 library at runtime and so will not suffer the overheads associated with
321 multi-thread support in other code such as the C++ runtime library.
323 * New locales: ayc_PE, doi_IN, ia_FR, mni_IN, nhn_MX, niu_NU, niu_NZ,
324 sat_IN, and szl_PL.
325 \f
326 Version 2.16
328 * The following bugs are resolved with this release:
330 174, 208, 350, 369, 411, 706, 766, 887, 2074, 2541, 2547, 2548, 2550,
331 2551, 2552, 2553, 2554, 2562, 2563, 2565, 2566, 2570, 2576, 2636, 2678,
332 3335, 3440, 3748, 3768, 3866, 3868, 3906, 3976, 3992, 4026, 4108, 4596,
333 4822, 5077, 5461, 5805, 5993, 6471, 6486, 6578, 6649, 6730, 6770, 6794,
334 6884, 6890, 6894, 6895, 6907, 6911, 6959, 7064, 9739, 9902, 10110, 10135,
335 10140, 10153, 10210, 10254, 10346, 10375, 10545, 10716, 10846, 11174,
336 11261, 11322, 11365, 11451, 11494, 11521, 11677, 11837, 11959, 12047,
337 12097, 12193, 12194, 12297, 12298, 12301, 12340, 12354, 12416, 12495,
338 13058, 13223, 13361, 13525, 13526, 13527, 13528, 13529, 13530, 13531,
339 13532, 13533, 13547, 13551, 13552, 13553, 13555, 13556, 13559, 13563,
340 13566, 13576, 13579, 13583, 13592, 13594, 13613, 13618, 13637, 13656,
341 13658, 13673, 13691, 13695, 13704, 13705, 13706, 13718, 13726, 13738,
342 13739, 13743, 13750, 13758, 13760, 13761, 13775, 13786, 13787, 13792,
343 13806, 13824, 13840, 13841, 13844, 13846, 13848, 13851, 13852, 13854,
344 13871, 13872, 13873, 13879, 13882, 13883, 13884, 13885, 13886, 13892,
345 13895, 13908, 13910, 13911, 13912, 13913, 13914, 13915, 13916, 13917,
346 13918, 13919, 13920, 13921, 13922, 13923, 13924, 13926, 13927, 13928,
347 13938, 13941, 13942, 13954, 13955, 13956, 13963, 13967, 13968, 13970,
348 13973, 13979, 13983, 13986, 13996, 14012, 14027, 14033, 14034, 14036,
349 14040, 14043, 14044, 14048, 14049, 14050, 14053, 14055, 14059, 14064,
350 14075, 14080, 14083, 14103, 14104, 14109, 14112, 14117, 14122, 14123,
351 14134, 14153, 14183, 14188, 14199, 14210, 14218, 14229, 14241, 14273,
352 14277, 14278.
354 * Support for the x32 ABI on x86-64 added. The x32 target is selected by
355 configuring glibc with:
356 BUILD_CC='gcc' CC='gcc -mx32' CXX='g++ -mx32'
357 Visit <http://sites.google.com/site/x32abi/> for more x32 ABI info.
358 Implemented by H.J. Lu.
360 * ISO C11 support:
362 + define static_assert
364 + do not declare gets
366 + declare at_quick_exit and quick_exit also for ISO C11
368 + aligned_alloc. NB: The code is deliberately allows the size parameter
369 to not be a multiple of the alignment. This is a moronic requirement
370 in the standard but it is only a requirement on the caller, not the
371 implementation.
373 + timespec_get added
375 + uchar.h support added
377 + CMPLX, CMPLXF, CMPLXL added
379 Implemented by Ulrich Drepper.
381 * Support for the IA-64 has been moved to ports.
383 * Remove support for anything but ELF binary format
385 * Checking versions of poll, ppoll added.
386 Implemented by Ulrich Drepper.
388 * More generic and 64-bit performance optimizations to math functions.
389 Implemented by Ulrich Drepper.
391 * New configure option --enable-obsolete-rpc makes the deprecated RPC
392 headers and functions available at compile time as they were before
393 version 2.14. This option will be removed at some time in the future
394 after the TI-RPC library becomes fully sufficient for the needs of
395 existing applications.
397 * Compatibility code for Linux kernel versions before 2.4 has been removed.
398 Note that glibc is not expected to work with any Linux kernel version
399 before 2.6.
401 * New header <sys/auxv.h> and function getauxval allowing easy access to
402 the AT_* key-value pairs passed from the Linux kernel. The header also
403 defines the HWCAP_* bits associated with the AT_HWCAP key.
405 * New locales: mag_IN
407 * New configure option --enable-systemtap builds SystemTap static probes
408 into libc for setjmp and longjmp and into libpthread for various operations.
409 So far the setjmp/longjmp probes and some of the libpthread probes are
410 provided only for i*86 and x86_64.
411 Implemented by Roland McGrath and Rayson Ho.
413 * Optimized expf for x86-32 and x86-64. Implemented by Liubov Dmitrieva.
415 * More optimized functions for PowerPC. Implemented by Adhemerval Zanella
416 and Will Schmidt.
418 * More optimized functions for SPARC. Implemented by David S. Miller.
420 * Improved support for cross-compilation, especially bootstrap builds
421 without a previously built glibc.
423 * Ports for the TILE-Gx and TILEPro families of processors. Contributed by
424 Chris Metcalf from Tilera.
426 * Support for the old ARM ABI has been removed from ports. Only the EABI is
427 now supported for ARM processors.
429 * The hard-float variant of the ARM EABI now uses /lib/ld-linux-armhf.so.3
430 as the name of the dynamic linker, to distinguish it from the
431 /lib/ld-linux.so.3 dynamic linker used for the base EABI.
433 * Support for CRIS has been removed from ports.
435 * A new class of installed header has been documented for low-level
436 platform-specific functionality. PowerPC added the first instance with a
437 function to provide time base register access. Contributed by Tulio
438 Magno Quites Machado Filho.
440 * ix86 configurations now install header files that are consistent with
441 what x86-64 configurations install. These same header files can be used
442 for -m32, -m64, or -mx32 builds.
443 Contributed by H.J. Lu.
445 * Math library bug fixes. A thorough audit of all open math library bugs was
446 conducted by Joseph Myers. Significant progress was made on many math
447 library bugs resulting in more accurate exceptions and function results.
448 Many thanks to all those that contributed including Andreas Jaeger for his
449 patch review and work on the x87 trigonometric instruction issues.
451 * Timezone data is no longer installed. Timezone-related binaries and scripts
452 will continue to be installed. Users should obtain their timezone data from
453 their distribution provider or from the tzdata package at
454 <ftp://munnari.oz.au/pub/>.
455 \f
456 Version 2.15
458 * The following bugs are resolved with this release:
460 6779, 6783, 9696, 10103, 10709, 11589, 11929, 12403, 12786, 12840, 12847,
461 12868, 12852, 12874, 12885, 12892, 12906, 12907, 12922, 12935, 12962,
462 13007, 13021, 13061, 13062, 13067, 13068, 13085, 13088, 13090, 13092,
463 13096, 13114, 13118, 13123, 13134, 13138, 13147, 13150, 13166, 13179,
464 13185, 13189, 13192, 13268, 13276, 13282, 13291, 13305, 13328, 13335,
465 13337, 13344, 13358, 13367, 13413, 13416, 13423, 13439, 13446, 13472,
466 13484, 13506, 13515, 13523, 13524, 13538, 13540
468 * New program pldd to list loaded object of a process
469 Implemented by Ulrich Drepper.
471 * Add nss_db support back to glibc. No more dependency on Berkeley db
472 and support for initgroups lookups.
473 Implemented by Ulrich Drepper.
475 * Optimized strcpy, strncpy, stpcpy, stpncpy for SSE2 and SSSE3 on x86-32.
476 Contributed by HJ Lu.
478 * Improved strcpy, strncpy, stpcpy, stpncpy for SSE2 and SSSE3 on x86-64.
479 Contributed by HJ Lu.
481 * Optimized strcat, strncat on x86-64 and optimized wcscmp, wcslen, strnlen
482 on x86-32 and x86-64.
483 Contributed by Liubov Dmitrieva.
485 * Optimized strchr and strrchr for SSE on x86-32.
486 Contributed by Liubov Dmitrieva.
488 * Optimized memchr, memrchr, rawmemchr, memcmp, wmemcmp, wcschr, wcscpy
489 for x86-64 and x86-32.
490 Contributed by Liubov Dmitrieva.
492 * New interfaces: scandirat, scandirat64
493 Implemented by Ulrich Drepper.
495 * Checking versions of FD_SET, FD_CLR, and FD_ISSET added.
496 Implemented by Ulrich Drepper.
498 * nscd now also caches the netgroup database.
499 Implemented by Ulrich Drepper.
501 * Integrate libm with gcc's -ffinite-math-only option.
502 Implemented by Ulrich Drepper.
504 * Lots of generic, 64-bit, and x86-64-specific performance optimizations
505 to math functions. Implemented by Ulrich Drepper.
507 * Optimized strcasecmp and strncasecmp for AVX on x86-64.
508 Implemented by Ulrich Drepper.
510 * New Linux interfaces: process_vm_readv, process_vm_writev
512 * Optimized strcasecmp and strncasecmp for SSSE3 and SSE4.2 on x86-32.
513 Implemented by Ulrich Drepper.
515 * Optimized nearbyint and strcasecmp for PPC.
516 Implemented by Adhemerval Zanella.
518 * New locales: bho_IN, unm_US, es_CU, ta_LK
519 \f
520 Version 2.14
522 * The following bugs are resolved with this release:
524 386, 6420, 7101, 9730, 9732, 9809, 10138, 10149, 10157, 11099, 11257,
525 11258, 11487, 11532, 11558, 11578, 11634, 11653, 11668, 11697, 11724,
526 11781, 11799, 11820, 11837, 11857, 11869, 11892, 11895, 11901, 11945,
527 11947, 11952, 11987, 12052, 12083, 12158, 12178, 12200, 12346, 12350,
528 12393, 12420, 12432, 12445, 12449, 12453, 12454, 12460, 12469, 12489,
529 12509, 12510, 12511, 12518, 12527, 12541, 12545, 12551, 12582, 12583,
530 12587, 12597, 12601, 12611, 12625, 12626, 12631, 12650, 12653, 12655,
531 12660, 12671, 12681, 12684, 12685, 12711, 12713, 12714, 12717, 12723,
532 12724, 12734, 12738, 12746, 12766, 12775, 12777, 12782, 12788, 12792,
533 12795, 12811, 12813, 12814, 12841
535 * The RPC implementation in libc is obsoleted. Old programs keep working
536 but new programs cannot be linked with the routines in libc anymore.
537 Programs in need of RPC functionality must be linked against TI-RPC.
538 The TI-RPC implementation is IPv6 enabled and there are other benefits.
540 Visible changes of this change include (obviously) the inability to link
541 programs using RPC functions without referencing the TI-RPC library and the
542 removal of the RPC headers from the glibc headers.
543 Implemented by Ulrich Drepper.
545 * New Linux interfaces: clock_adjtime, name_to_handle_at, open_by_handle_at,
546 syncfs, setns, sendmmsg
548 * New locales: os_RU, bem_ZA, en_ZA, ff_SN, sw_KE, sw_TZ, lb_LU, wae_CH,
549 yue_HK, lij_IT, mhr_RU
551 * New encodings: CP770, CP771, CP772, CP773, CP774
553 * New program sotruss to trace calls through PLTs
554 Implemented by Ulrich Drepper.
556 * The malloc hook implementation is marked deprecated and will be removed
557 from the default implementation in the next version. The design never
558 worked ever since the introduction of threads. Even programs which do
559 not create threads themselves can use multiple threads created internally.
560 \f
561 Version 2.13
563 * The following bugs are resolved with this release:
565 3268, 6812, 7066, 10085, 10484, 10563, 10851, 11149, 11155, 11577, 11611,
566 11640, 11655, 11701, 11840, 11856, 11883, 11903, 11904, 11968, 11979,
567 12005, 12037, 12067, 12077, 12078, 12092, 12093, 12107, 12108, 12113,
568 12140, 12159, 12167, 12191, 12194, 12201, 12204, 12205, 12207, 12348,
569 12378, 12394, 12397
571 * New Linux interfaces: prlimit, prlimit64, fanotify_init, fanotify_mark
573 * POWER7 optimizations: memset, memcmp, strncmp
575 * New optimized string functions for x86-64: strnlen (SSE2),
576 strcasecmp (SSE2, SSSE3, SSE4.2), strncasecmp (SSE2, SSSE3, SSE4.2)
577 Implemented by Ulrich Drepper.
578 \f
579 Version 2.12
581 * The following bugs are resolved with this release:
583 3662, 4457, 5553, 10162, 10401, 10414, 10554, 10824, 10864, 10915,
584 10918, 10936, 10939, 10958, 10968, 10969, 10972, 10992, 11000, 11001,
585 11007, 11010, 11027, 11039, 11040, 11041, 11043, 11046, 11056, 11070,
586 11093, 11115, 11125, 11126, 11127, 11134, 11141, 11149, 11183, 11184,
587 11185, 11186, 11187, 11188, 11189, 11190, 11191, 11192, 11193, 11194,
588 11200, 11230, 11235, 11242, 11254, 11258, 11271, 11272, 11276, 11279,
589 11287, 11292, 11319, 11332, 11333, 11387, 11389, 11390, 11394, 11397,
590 11410, 11438, 11449, 11470, 11471, 11520, 11537, 11538, 11571
592 * New interfaces: pthread_getname_np, pthread_setname_np
594 * New Linux interface: recvmmsg
596 * STT_GNU_IFUNC implemented for Sparc by David Miller.
598 * The dynamic linker now recognizes supported ABI versions from the
599 EI_ABIVERSION field in the ELF header.
600 Implemented by Ulrich Drepper.
602 * New NIS mode selector ADJUNCT_AS_SHADOW. The passwd.adjunct.byname table
603 will not be used to fill in password fields in the passwd.byname replies.
604 Instead it is used to synthesize the shadow.byname table, should it be
605 missing. This is a useful mode in some installations involving Solaris.
606 Implemented by Ulrich Drepper.
608 * New locales: kok_IN, sq_MK, cv_RU
609 \f
610 Version 2.11
612 * The following bugs are resolved with this release:
614 3270, 7094, 9924, 9986, 10011, 10085, 10107, 10159, 10162, 10166, 10183,
615 10195, 10196, 10200, 10203, 10207, 10211, 10213, 10217, 10221, 10229,
616 10262, 10286, 10312, 10315, 10319, 10349, 10360, 10391, 10402, 10416,
617 10418, 10422, 10425, 10446, 10448, 10452, 10540, 10553, 10560, 10564,
618 10609, 10643, 10692, 10713, 10717, 10730, 10731, 10742, 10780, 10784,
619 10789, 10817, 10823, 10840, 10847
621 * New interfaces: execvpe, pthread_sigqueue, mkstemps, mkstemps64, mkostemps,
622 mkostemps64
623 Implemented by Ulrich Drepper.
625 * Checking version of longjmp added that fails if an uninitialized stack
626 frame would be created. Implemented by Ulrich Drepper.
628 * STT_GNU_IFUNC is now supported in static executables.
629 Implemented by H.J. Lu.
631 * STT_GNU_IFUNC implemented for PPC by Alan Modra.
633 * New optimized string functions for x86-64: strstr, strcasestr, memcmp,
634 strcspn, strpbrk, strspn, strcpy, stpcpy, strncpy, strcmp (SSE2, SSE4.2),
635 strncmp (SSE2, SSE4.2), strchr (SSE4.2), strrchr (SSE4.2).
636 Contributed by H.J. Lu.
638 strlen, rawmemchr, strcmp (SSSE3), strncmp (SSSE3).
639 Implemented by Ulrich Drepper.
641 * New optimized string functions for x86: strlen, strcspn, strspn, strpbrk,
642 strstr, strcasestr.
643 Contributed by H.J. Lu.
645 * Support for fma instruction in AVX on x86-64.
646 Implemented by H.J. Lu and Ulrich Drepper.
648 * AVX support in x86-64 auditing support in ld.so.
649 Implemented by H.J. Lu.
651 * STB_GNU_UNIQUE support added.
652 Implemented by Ulrich Drepper.
654 * Implement second fallback mode for optimized DNS lookup for even more
655 broken environments. If two requests from the same port are not
656 handled correctly close the socket and open a new one before sending
657 the second request. The 'single-request-reopen' option in /etc/resolv.conf
658 can be used to select this mode right away, instead of rediscovering the
659 necessity is every process again.
660 Implemented by Ulrich Drepper.
662 * New resolver flag RES_USE_DNSSEC to enable use of verified lookup.
663 Implemented by Adam Tkac.
665 * Optimized iconv conversions for S390x.
666 Implemented by Andreas Krebbel.
668 * Using condvars with PI mutexes is now more efficient due to kernel
669 support for requeueing to PI futexes. NPTL support added for x86-64.
670 Implemented by Ulrich Drepper.
672 * New locales: ps_AF, my_MM
673 \f
674 Version 2.10
676 * The following bugs are resolved with this release:
678 697, 5381, 5807, 6411, 6545, 7040, 7058, 7067, 7080, 7083, 7095, 7098,
679 9677, 9694, 9697, 9701, 9704, 9705, 9706, 9720, 9726, 9730, 9733, 9736,
680 9741, 9750, 9753, 9759, 9781, 9791, 9793, 9823, 9833, 9844, 9880, 9881,
681 9891, 9893, 9895, 9913, 9916, 9920, 9948, 9955, 9957, 9963, 9985, 10052,
682 10069, 10086, 10087, 10090, 10092, 10093, 10100, 10118, 10128
684 * New interfaces: preadv, preadv64, pwritev, pwritev64, malloc_info
685 Implemented by Ulrich Drepper.
687 * New Linux interfaces: accept4, fallocate, fallocate64.
688 Implemented by Ulrich Drepper.
690 * Correct declarations of string function when used in C++ code. This
691 could lead to compile errors for invalid C++ code.
693 * XPG7/POSIX 2008 compilation environment. Many GNU-specific functions are
694 now in POSIX.
696 * New POSIX 2008 interface: psiginfo
697 Implemented by Ulrich Drepper.
699 * New ISO C++1x interfaces: quick_exit, at_quick_exit
700 Implemented by Ulrich Drepper.
702 * Support for selecting between multiple function definitions at runtime
703 using STT_GNU_IFUNC symbols. Implemented by Ulrich Drepper.
705 * The libcrypt library can now use the hash function implementations in
706 NSS. Implemented by Ulrich Drepper.
708 * The malloc implementation can be compiled to be less memory efficient
709 but higher performing in multi-threaded programs.
710 Implemented by Ulrich Drepper.
712 * New locales: nan_TW@latin, ks_IN
714 * Faster strlen, strchr, strchrnul, strrchr, memchr, and rawmemchr for x86-64.
715 Implemented by Ulrich Drepper.
717 * Extended printf hook support. It is possible to use user-defined types
718 and extend existing format specifiers.
719 Implemented by Ulrich Drepper.
721 * Handling for group shadow files has been added.
722 Implemented by Ulrich Drepper.
724 * DNS IPv4-IPv6 parallel lookup now deals better with broken DNS
725 servers (the case, e.g., for some people using the built-in DNS
726 server in ADSL modems/routers). There is a once-per-process timeout
727 in case of a broken server. To avoid it, users can run nscd or put
728 'options single-request' in /etc/resolv.conf.
729 Implemented by Ulrich Drepper.
730 \f
731 Version 2.9
733 * The following bugs are resolved with this release:
735 3406, 5209, 5210, 5381, 5794, 5814, 5911, 6428, 6438, 6442, 6447, 6461,
736 6472, 6505, 6544, 6589, 6612, 6634, 6653, 6654, 6657, 6698, 6712, 6713,
737 6719, 6723, 6724, 6740, 6763, 6771, 6790, 6791, 6817, 6824, 6839, 6843,
738 6845, 6856, 6857, 6860, 6867, 6875, 6919, 6920, 6942, 6947, 6955, 6966,
739 6968, 6974, 6980, 6995, 7008, 7009, 7029
741 * Unified lookup for getaddrinfo: IPv4 and IPv6 addresses are now looked
742 up at the same time. Implemented by Ulrich Drepper.
744 * TLS descriptors for LD and GD on x86 and x86-64.
745 Implemented by Alexandre Oliva.
747 * getaddrinfo now handles DCCP and UDPlite.
748 Implemented by Ulrich Drepper.
750 * New fixed-size conversion macros: htobe16, htole16, be16toh, le16toh,
751 htobe32, htole32, be32toh, le32toh, htobe64, htole64, be64toh, le64toh.
752 Implemented by Ulrich Drepper.
754 * New implementation of memmem, strstr, and strcasestr which is O(n).
755 Implemented by Eric Blake.
757 * New Linux interfaces: inotify_init1, dup3, epoll_create1, pipe2
759 * Implement "e" option for popen to open file descriptor with the
760 close-on-exec flag set. Implemented by Ulrich Drepper.
762 * Implement "b" mode for fmemopen. In this mode writes writes don't
763 implicitly add a NUL byte and seeks from the end of the buffer really
764 use the buffer end, not the string length as the basis.
765 Implemented by Ulrich Drepper.
767 * Many functions, exported and internal, now atomically set the close-on-exec
768 flag when run on a sufficiently new kernel. Implemented by Ulrich Drepper.
770 * Sorting rules for some Indian languages (Kannada, Gurumukhi, Telugu,
771 Sinhala)
772 Implemented by Pravin Satpute.
774 * New locales: sd_IN, sd_IN@devanagari, ks_IN@devanagari, ht_HT, en_AG, nl_AW.
775 \f
776 Version 2.8
778 * The following bugs are resolved with this release:
780 2549, 3112, 4314, 4407, 4997, 5012, 5040, 5112, 5204, 5208, 5209, 5220,
781 5222, 5224, 5225, 5237, 5238, 5240, 5245, 5277, 5346, 5375, 5378, 5382,
782 5424, 5427, 5428, 5435, 5436, 5439, 5441, 5442, 5443, 5451, 5452, 5454,
783 5455, 5463, 5464, 5465, 5475, 5477, 5478, 5520, 5541, 5545, 5553, 5600,
784 5602, 5607, 5614, 5627, 5628, 5736, 5737, 5741, 5753, 5760, 5762, 5768,
785 5774, 5777, 5778, 5779, 5786, 5790, 5818, 5854, 5857, 5903, 5939, 5979,
786 5983, 5995, 5998, 6004, 6007, 6020, 6021, 6024, 6040, 6042
788 * New locales: bo_CN, bo_IN, shs_CA.
790 * New encoding: HP-ROMAN9, HP-GREEK8, HP-THAI8, HP-TURKISH8.
792 * Sorting rules for some Indian languages (Devanagari and Gujarati).
793 Implemented by Pravin Satpute.
795 * IPV6 addresses in /etc/resolv.conf can now have a scope ID
797 * nscd caches now all timeouts for DNS entries
798 Implemented by Ulrich Drepper.
800 * nscd is more efficient and wakes up less often.
801 Implemented by Ulrich Drepper.
803 * More checking functions: asprintf, dprintf, obstack_printf, vasprintf,
804 vdprintf, and obstack_vprintf.
805 Implemented by Jakub Jelinek.
807 * Faster memset for x86-64.
808 Implemented by Harsha Jagasia and H.J. Lu.
810 * Faster memcpy on x86.
811 Implemented by Ulrich Drepper.
813 * ARG_MAX is not anymore constant on Linux. Use sysconf(_SC_ARG_MAX).
814 Implemented by Ulrich Drepper.
816 * Faster sqrt and sqrtf implemention for some PPC variants.
817 Implemented by Steven Munroe.
818 \f
819 Version 2.7
821 * The following bugs are resolved with this release:
823 4125, 4126, 4178, 4359, 4407, 4512, 4514, 4525, 4554, 4556, 4557, 4566,
824 4582, 4586, 4588, 4599, 4610, 4647, 4702, 4705, 4726, 4745, 4772, 4773,
825 4775, 4776, 4792, 4813, 4814, 4816, 4833, 4858, 4860, 4896, 4905, 4925,
826 4936, 4937, 4938, 4941, 4946, 4963, 4972, 5010, 5028, 5043, 5058, 5063,
827 5071, 5103, 5104, 5112, 5113, 5184, 5186
829 * More checking functions: fread, fread_unlocked, open*, mq_open.
830 Implemented by Jakub Jelinek and Ulrich Drepper.
832 * Extend fortification to C++. Implemented by Jakub Jelinek.
834 * Implement 'm' modifier for scanf. Add stricter C99/SUS compliance
835 by not recognizing 'a' as a modifier when those specs are requested.
836 Implemented by Jakub Jelinek.
838 * PPC optimizations to math and string functions.
839 Implemented by Steven Munroe.
841 * New interfaces: mkostemp, mkostemp64. Like mkstemp* but allow additional
842 options to be passed. Implemented by Ulrich Drepper.
844 * More CPU set manipulation functions. Implemented by Ulrich Drepper.
846 * New Linux interfaces: signalfd, eventfd, eventfd_read, and eventfd_write.
847 Implemented by Ulrich Drepper.
849 * Handle private futexes in the NPTL implementation.
850 Implemented by Jakub Jelinek and Ulrich Drepper.
852 * Add support for O_CLOEXEC. Implement in Hurd. Use throughout libc.
853 Implemented by Roland McGrath and Ulrich Drepper.
855 * Linux/x86-64 vDSO support. Implemented by Ulrich Drepper.
857 * SHA-256 and SHA-512 based password encryption.
858 Implemented by Ulrich Drepper.
860 * New locales: ber_DZ, ber_MA, en_NG, fil_PH, fur_IT, fy_DE, ha_NG, ig_NG,
861 ik_CA, iu_CA, li_BE, li_NL, nds_DE, nds_NL, pap_AN, sc_IT, tk_TM, ug_CN,
862 yo_NG.
864 + New iconv modules: MAC-CENTRALEUROPE, ISO-8859-9E, KOI8-RU.
865 Implemented by Ulrich Drepper.
866 \f
867 Version 2.6
869 * The following bugs are resolved with this release:
871 3156, 3213, 3285, 3291, 3306, 3313, 3320, 3322, 3325, 3326, 3334, 3348,
872 3352, 3363, 3369, 3426, 3427, 3429, 3451, 3458, 3465, 3480, 3483, 3493,
873 3514, 3515, 3559, 3632, 3664, 3673, 3674, 3745, 3747, 3818, 3840, 3842,
874 3851, 3855, 3884, 3885, 3902, 3905, 3919, 3944, 3954, 3955, 3957, 3991,
875 3995, 3996, 4024, 4040, 4069, 4070, 4074, 4076, 4096, 4101, 4102, 4114,
876 4130, 4131, 4181, 4276, 4306, 4342, 4344, 4349, 4364, 4368, 4381, 4392,
877 4403, 4405, 4406, 4411, 4438, 4439, 4455, 4456, 4465, 4512, 4514, 4586,
878 4702, 4858
880 * New Linux interfaces: epoll_pwait, sched_getcpu.
882 * New generic interfaces: strerror_l.
884 * nscd can now cache the services database. Implemented by Ulrich Drepper.
885 \f
886 Version 2.5
888 * The following bugs are resolved with this release:
890 39, 68, 192, 352, 388, 531, 935, 1006, 1201, 1203, 1386, 1782, 1783, 1784,
891 1785, 1786, 1787, 1951, 1974, 1996, 2072, 2098, 2125, 2134, 2158, 2182,
892 2349, 2376, 2386, 2389, 2415, 2418, 2420, 2423, 2450, 2451, 2466, 2472,
893 2473, 2477, 2498, 2499, 2501, 2502, 2505, 2507, 2508, 2509, 2517, 2526,
894 2569, 2571, 2592, 2611, 2625, 2632, 2644, 2662, 2680, 2683, 2684, 2693,
895 2695, 2703, 2734, 2751, 2764, 2766, 2775, 2792, 2821, 2823, 2832, 2841,
896 2843, 2883, 2892, 2908, 2914, 2926, 2961, 2978, 2980, 2987, 2997, 2998,
897 3013, 3018, 3034, 3040, 3044, 3123, 3124, 3137, 3138, 3143, 3155, 3189,
898 3225, 3251, 3252, 3253, 3273
900 * For Linux, the sorting of addresses returned by getaddrinfo now also
901 handles rules 3, 4, and 7 from RFC 3484. I.e., all rules are handled.
902 Implemented by Ulrich Drepper.
904 * Allow system admin to configure getaddrinfo with the /etc/gai.conf file.
905 Implemented by Ulrich Drepper.
907 * New Linux interfaces: splice, tee, sync_file_range, vmsplice.
909 * New iconv module for MIK. Contributed by Alexander Shopov.
911 * For sites with broken group and/or passwd database, the auto-propagate
912 option of nscd can prevent creating ID lookup entries from the results
913 of a name lookup and vice versa. This usually is no problem but some
914 site might have problems with the default behavior.
915 Implemented by Ulrich Drepper.
917 * Iterating over entire database in NIS can be slow. With the
918 SETENT_BATCH_READ option in /etc/default/nss a system admin can decide
919 to trade time for memory. The entire database will be read at once.
920 Implemented by Ulrich Drepper.
922 * The interfaces introduced in RFC 3542 have been implemented by
923 Ulrich Drepper.
925 * Support for the new ELF hash table format was added by Ulrich Drepper.
927 * Support for priority inheritance mutexes added by Jakub Jelinek and
928 Ulrich Drepper.
930 * Support for priority protected mutexes added by Jakub Jelinek.
932 * New locales: nr_ZA, pa_PK, ca_AD, ca_FR, ca_IT, el_CY, tr_CY, as_IN,
933 or_IN, csb_PL, fy_NL, sr_ME.
934 \f
935 Version 2.4
937 * More overflow detection functions.
939 * New iconv converters for IBM1025, IBM1122, IBM1137, IBM1153,
940 IBM1154, IBM1155, IBM1156, IBM1157, and IBM1158 contributed by Jiro Sekiba.
942 More converters for IBM803, IBM901, IBM902, IBM921, IBM1008, IBM1097,
943 IBM1112, IBM1123, IBM1130, IBM1140, IBM1141, IBM1142, IBM1143, IBM1144,
944 IBM1145, IBM1146, IBM1147, IBM1148, IBM1149, IBM1166, IBM1167, IBM4517,
945 IBM4899, IBM4909, IBM4971, IBM5347, IBM9030, IBM9066, IBM9448, IBM12712,
946 IBM16804, IBM1364, IBM1371, IBM1388, IBM1390, and IBM1399 contributed
947 by Masahide Washizawa.
949 * It is now possible to install audit libraries for the dynamic linker using
950 LD_AUDIT. Implemented by Ulrich Drepper.
952 * The LinuxThreads add-on, providing pthreads on Linux 2.4 kernels, is no
953 longer supported. The new NPTL implementation requires Linux 2.6 kernels.
954 For a libc and libpthread that works well on Linux 2.4 kernels, we
955 recommend using the stable 2.3 branch.
957 * The new function open_wmemstream acts like open_memstream,
958 but uses a wchar_t wide character buffer.
960 * The new function ppoll is an improved version of poll, similar to pselect.
962 * New interfaces: fdopendir, openat, fstatat, fchmodat, fchownat,
963 futimesat, faccessat, mkdirat, mkfifoat, mknodat,
964 renameat, unlinkat, linkat, symlinkat, readlinkat.
966 * New Linux kernel system calls: unshare,
967 inotify_init, inotify_add_watch, inotify_rm_watch.
969 * The euidaccess function is now also known by the alias eaccess,
970 for compatibility with some other systems.
972 * Timezone data updated to 2006b version.
973 \f
974 Version 2.3.6
976 * The following bugs are resolved with this release:
978 38, 253, 549, 622, 653, 721, 758, 851, 877, 915, 934, 955, 961,
979 1016, 1037, 1076, 1079, 1080, 1081, 1082, 1083, 1084, 1085, 1086,
980 1087, 1088, 1090, 1091, 1092, 1093, 1094, 1095, 1096, 1097, 1098,
981 1099, 1100, 1101, 1102, 1103, 1104, 1105, 1106, 1107, 1108, 1109,
982 1110, 1111, 1112, 1113, 1125, 1137, 1138, 1249, 1250, 1251, 1252,
983 1253, 1254, 1350, 1358, 1394, 1438, 1498, 1534
985 Visit <http://sources.redhat.com/bugzilla/> for the details of each bug.
987 * As of this release, GCC 4 can be used to compile the C Library.
989 * Timezone data updated to 2005m version.
990 \f
991 Version 2.3.5
993 * The following bugs are resolved with this release:
995 284, 592, 602, 626, 633, 640, 650, 661, 671, 681, 693, 700, 710, 719,
996 722, 723, 725, 726, 727, 728, 729, 730, 731, 732, 733, 734, 735, 736,
997 737, 738, 739, 740, 741, 742, 743, 744, 745, 765, 767, 768, 769, 776,
998 777, 787, 821, 822, 823, 825
1000 Visit <http://sources.redhat.com/bugzilla/> for the details of each bug.
1001 \f
1002 Version 2.3.4
1004 * Support for RFC 3678. Real implementations exist only for Linux so far.
1005 Implemented by Ulrich Drepper.
1007 * nscd can now cache entries persistently. Expiring entries are reloaded.
1008 For speedups the cache can be shared in memory with client processes.
1009 Implemented by Ulrich Drepper.
1011 * nscd can now perform SELinux checks.
1012 Implemented by Matthew Rickard <mjricka@epoch.ncsc.mil>.
1014 * getaddrinfo queries are now cached. Canonical name lookup is performed
1015 efficiently.
1016 Implemented by Ulrich Drepper.
1018 * The nothrow function attribute is used when headers are used by gcc when
1019 compiling C code. This can avoid significant amounts of exception
1020 handling data.
1022 * The malloc functions perform more error checking and are stricter when
1023 it comes to reacting on errors. The default action is to terminate
1024 the process after showing an error message. Implemented by Ulrich Drepper.
1026 * Reverse lookups of IPv6 addresses does not use bit string or .ip6.int
1027 lookups anymore unless explicitly requested. Implemented by Ulrich Drepper.
1029 * Namespaces in ld.so are implemented. DSOs can be loaded in separate
1030 namespaces using the new function dlmopen(). This feature is of course,
1031 like most other dynamic loading functionality, not available in statically
1032 linked applications. Implemented by Ulrich Drepper.
1034 * Low-overhead boundary checking variants of string and some stdio functions
1035 were added. These are to be used in conjunction with a gcc patch by
1036 Jakub Jelinek which adds calls to these functions if possible.
1037 Implemented by Jakub Jelinek and Ulrich Drepper.
1039 * Old code for several operating systems and machine architectures that
1040 have not been in working condition in a long time have been removed from
1041 the main source tree maintained by the GNU C Library's maintainers.
1042 These files are now reside in the separate `ports' source module
1043 that is usable as an add-on when building the library.
1044 \f
1045 Version 2.3.3
1047 * New functions `dladdr1' and `dlinfo' in <dlfcn.h> provide more ways to
1048 interrogate the dynamic linker, compatible with the Solaris interface.
1050 * ELF thread-local storage support (TLS) now works on PowerPC and PowerPC64;
1051 implemented by Paul Mackerras, Steven Munroe, and Roland McGrath.
1053 * getifaddrs now uses the netlink interface on Linux to get its information.
1054 Implemented by Thorsten Kukuk.
1056 * getaddrinfo now implements AI_V4MAPPED, AI_ALL, and AI_ADDRCONF.
1057 Implemented by Ulrich Drepper.
1059 * support for non-executable stacks on x86 has been added. Changes mostly
1060 by Roland McGrath.
1062 * regex is now much faster for multibyte locales. Changes by Jakub Jelinek
1063 and Ulrich Drepper.
1065 * getaddrinfo now performs destination address selection according to
1066 RFC 3484.
1067 \f
1068 Version 2.3.2
1070 * Thread-safe interfaces for many functions that access locale data
1071 were added in version 2.3, but these features were omitted from NEWS.
1072 Many functions have variants with an `_l' suffix that take a `locale_t'
1073 object as a parameter rather than consulting the current locale.
1074 The new functions `newlocale', `duplocale', and `freelocale' in <locale.h>
1075 create and maintain `locale_t' objects. Additionally, the new function
1076 `uselocale' sets "the current locale" (as used by functions not so
1077 parameterized) set for an individual thread. These features were added
1078 in version 2.3, implemented by Ulrich Drepper and Roland McGrath.
1080 * The functions getresuid, getresgid, setresuid, and setresgid, which
1081 have long been available on Linux, are now declared in <unistd.h>
1082 and are now also available on the Hurd.
1084 * ELF thread-local storage support (TLS) now works on x86-64.
1086 * The new dynamic string token $LIB is expanded in shared library names.
1087 This normally expands to lib, but on some 64-bit platforms to lib64 instead.
1089 * Aldy Hernandez contributed complete software floating point support for
1090 PowerPC machines with no FPU.
1092 * fexecve is implemented on Linux.
1094 * The `btowc' function should work at least twice as fast due to
1095 specialized callbacks in the iconv modules. Implemented by Bruno Haible.
1097 * With approriate thread add-ons cancelable functions are now implemented
1098 in libc.so as well. No need to call the function in libpthread. This
1099 change allowed to finally disable the incorrect and expensive handling
1100 of weak definition in ld.so.
1102 * Yet more PLT entries in libc.so have been removed. We finally arrived
1103 at the bare minimum. Startup times improved appropriately.
1105 * Support for the new Linux/x86 system call interface was added. The
1106 AT_SYSINFO auxiliary vector entry is recognized and handled.
1107 \f
1108 Version 2.3
1110 * Masahide Washizawa contributed iconv modules for IBM1163 and IBM1164
1111 charsets.
1113 * iconv (the program and the interface) now accepts empty names (excluding
1114 options like //TRANSLIT) to mean "use charset of current locale".
1116 * localedef can now transliterate characters in strings which are not in
1117 the provided charmap. The information from the input locale is used.
1119 * Prelinking support was added for ELF targets. This requires additional
1120 tools and recent versions of the GNU binutils. Contributed by Jakub Jelinek.
1122 * Read-only stdio streams now use mmap to speed up operation by eliminating
1123 copying and buffer underflows. To use add 'm' to the mode string of
1124 the fopen/fdopen/freopen call. Implemented by Ulrich Drepper.
1126 * The malloc functions were completely rewritten by Wolfram Gloger based
1127 on Doug Lea's malloc-2.7.0.c.
1129 * Isamu Hasegawa contributed a completely new and POSIX-conformant
1130 implementation of regex.
1132 * Bruno Haible upgraded the iconv and locale implementation to support
1133 Unicode 3.2.
1135 * Contents of the LC_* and LANG environment variables in the CEN style are
1136 not recognized anymore. It never was used. Change by Ulrich Drepper.
1138 * The runtime (ld.so, libc, libpthread for Linux) now can handle the ELF
1139 thread-local storage (TLS) ABI on some platforms.
1140 Changes by Ulrich Drepper. SH support by Kaz Kojima.
1142 * Bruno Haible contributed iconv converters for ISO-2022-JP-3, SHIFT JIS-X0213,
1143 EUC-JISX0213, and TSCII.
1145 * New header <ifaddrs.h> with functions `getifaddrs' and `freeifaddrs':
1146 BSD-compatible interface for getting all network interface addresses.
1147 Implementation for IPv4 by Roland McGrath.
1149 * Loading of locale data is faster due to the introduction of a locale
1150 archive. Implemented by Roland McGrath and Ulrich Drepper.
1152 * Startup times are significantly reduced by not using exported functions
1153 inside the library itself. Changes by Jakub Jelinek, Roland McGrath,
1154 and Ulrich Drepper.
1156 * Steven Munroe contributed a port to PowerPC64/Linux.
1157 \f
1158 Version 2.2.6
1160 * The Hurd now uses the GNU libio implementation of stdio rather than the
1161 old GNU stdio implementation, and uses a new ABI (libc.so.0.3).
1163 * The Hurd on x86 now has the `ioperm' function and <sys/io.h> header file
1164 with the same behavior as the Linux system call of the same name.
1165 \f
1166 Version 2.2.5
1168 * Stephen Moshier implemented log2, log10, powl and cbrtl for the
1169 128-bit long double format.
1171 * Masahide Washizawa contributed iconv modules for IBM1132, IBM1133, IBM1160,
1172 IBM1161, and IBM1162 charsets.
1174 * Andreas Jaeger contributed a port to x86-64/Linux.
1176 * Peter Bruin contributed a port to PowerPC/Hurd.
1178 * libc functions using I/O streams now can handle wide-oriented streams
1179 as well.
1181 * optimizations in the dynamic linker. Binaries created by recent binutils
1182 versions start up quicker due to reduced time spent on relocations.
1184 * Support for use of gcc3 added by Jakub Jelinek and HJ Lu.
1185 \f
1186 Version 2.2.4
1188 * Stephen Moshier implemented cosh, expm1, log1p, acos, sinh, tanh,
1189 asinh, atanh, j0 for the 128-bit long double format.
1191 * Bruno Haible updated all the code handling Unicode in some form to
1192 support Unicode 3.1.
1194 * Speed of regex for single-byte locales is back to previous levels.
1195 Patch by Isamu Hasegawa.
1197 * Alpha, SPARC, and IA-64 now also using floating stacks.
1199 * Startup time of internationalized applications greatly improved through
1200 iconv cache. Use iconvconfig to generate the cache file.
1201 Contributed by Ulrich Drepper.
1203 * The IA-64 specific part of ld.so was rewritten to eliminate some pretty
1204 severe performance problems. Patch by David Mosberger.
1206 * The Hurd port got a lot more functionality like AIO, various stdio
1207 extensions, etc. Mainly done by Roland McGrath.
1209 * mtrace can now lookup symbols in shared libraries.
1210 \f
1211 Version 2.2.3
1213 * Intel's IA-64 math library is largely integrated. It provides fast and
1214 accurate implementatations for most basic and standard math functions
1215 in float, double, and long double format.
1217 * Stephen Moshier implemented j0, j1, jn, y0, y1, yn, lgamma, erf, erfc,
1218 and asin for the 96-bit long double format and asin, log, tan for the
1219 128-bit long double format.
1221 * The beginning of a last-bit accurate math library by IBM Haifa were added.
1222 The basic double functions exist today. Contributed by Abraham Ziv
1223 <ziv@il.ibm.com>, Moshe Olshansky <olshansk@il.ibm.com>, Ealan Henis
1224 <ealan@il.ibm.com>, and Anna Reitman <reitman@il.ibm.com>.
1226 * An asynchronous name lookup library was added. The interface is designed
1227 after POSIX AIO. The proposal was circulated beforehand to get comments.
1228 No negative ones came in. Implemented by Ulrich Drepper.
1230 * Port to S390/64bit contributed by Martin Schwidefsky
1231 <schwidefsky@de.ibm.com>.
1233 * David Mosberger <davidm@hpl.hp.com> implemented the setcontext family
1234 of functions for Linux/IA-64.
1236 * The RPC code is now thread safe. Threads can now use the same service
1237 of different services at the same time. Patch by Eric Norum
1238 <eric.norum@usask.ca> with some help by Ulrich Drepper.
1240 * Martin Schwidefsky <schwidefsky@de.ibm.com> implemented the setcontext
1241 family of functions for Linux/S390.
1243 * Ulrich Drepper <drepper@redhat.com> implemented the setcontext family
1244 of functions for Linux/x86.
1246 * Port to Linux/CRIS contributed by Axis Communications.
1247 \f
1248 Version 2.2.2
1250 * Lots of headers were cleaned up. Using the tool in the conform/ subdir
1251 we can now check for namespace violations and missing declarations. The
1252 result is that almost all headers are now Unix-compliant (as defined in
1253 the upcoming XPG6). The negative side is that some programs might need
1254 corrections, too, if they depend on the incorrect form of the headers in
1255 previous versions which defined too many symbols and included too many
1256 other headers.
1258 * regex now handles multibyte character sets correctly.
1259 Contributed by Isamu Hasegawa <isamu@yamato.ibm.com>.
1261 * iconv (the program) does now conform to the upcoming XPG6 and handles
1262 charmaps. Instead of the charset names the path of charmaps can be
1263 provided and the conversion happens based on this data.
1264 Contributed by Ulrich Drepper.
1266 * The locale program now provides detailed information about the installed
1267 locales. While
1269 locale -a
1271 only lists the names of the supported locales
1273 locale -a --verbose
1275 provides details such as country, language, and codeset name.
1276 Contributed by Ulrich Drepper.
1277 \f
1278 Version 2.2.1
1280 * The gencat program now parses the input file according to the charset
1281 selected by the LC_CTYPE category. This is important for stateful
1282 character sets. To make generating catalogs easier there is a way
1283 to overwrite the charset selected by the locale: before the first
1284 message or $ quote line the catalog can contain a line like
1286 $ codeset=ISO-8859-2
1288 to select the charset (ISO-8859-2 in this case).
1290 Implemented by Shinya Hanataka and Ulrich Drepper.
1292 * New codeset conversion modules: IBM-922 (Estonia PC codeset),
1293 IBM-1124 (Ukraine PC codeset), IBM-1129 (Vietnamese PC codeset).
1294 Contributed by Masahide Washizawa <washi@jp.ibm.com>.
1296 * Optimized string functions for Alpha ev6 and ev67 by Richard Henderson
1297 <rth@redhat.com> and Rick Gorton <rick.gorton@alpha-processor.com>.
1299 * The LANGUAGE environment variable is now ignored unless the locale is
1300 changed from the default "C" locale.
1302 * The usual bug fixes.
1303 \f
1304 Version 2.2
1306 * Greg McGary added runtime support for bounds checking using gcc's
1307 new -fbounded-pointers option. ix86 target is complete. PowerPC
1308 is in progress.
1310 * Thorsten Kukuk added secure mode support to nscd.
1312 * The Berkeley db libraries have been removed.
1314 Related, the nss_db module is now in a separate package since it
1315 obviously requires a database library being available.
1317 * Wide character I/O streams implemented by Ulrich Drepper.
1319 * Functions from the extended socket API added by Ulrich Drepper.
1321 * Functions feenableexcept and fedisableexcept to control the
1322 behaviour of individual exceptions have been added by Andreas Jaeger.
1324 * ldconfig program added by Andreas Jaeger and Jakub Jelinek.
1326 * The resolver code has been updated from bind 8.2.3-T5B which supports
1327 threads. The integration was done by Andreas Jaeger, Adam D. Bradley,
1328 and Mark Kettenis.
1330 This change could in some situations effect backward compatibility. Since
1331 now `_res' is a thread-local instead of a global variable, modifying it
1332 in one thread does not have any effect in other threads.
1334 The resolver library was also extended to allow IPv6 as the transport
1335 protocol for the requests. This work was done by Stig Venaas.
1337 * Compatibility code for K&R C compilers has been removed from the
1338 header files. A ISO C compiler is needed to use the library
1339 (conforming to either C89 or C99 standard).
1341 * Complete rewrite of the localedef program to support multibyte character
1342 sets. Implement handling of ISO 14651 and ISO 14652. Rewrite strcoll,
1343 strxfrm, wcscoll, and wcsxfrm functions. Make isw*() functions work.
1344 Implemented by Ulrich Drepper.
1346 Bruno Haible significantly improved the generation and use of the data
1347 structures for the wide character tables.
1349 * Plural handling in gettext implemented by Ulrich Drepper.
1351 * The utmp daemon has been removed.
1353 * The port to MIPS-Linux has been finished by Andreas Jaeger.
1355 * A port to Hitachi SH3 and SH4 has been contributed by Kazumoto Kojima
1356 and Yutaka Niibe.
1358 * POSIX clocks and timers implemented by Kaz Kylheku and Ulrich Drepper.
1360 * POSIX barriers implemented by Kaz Kylheku.
1362 * POSIX spawn function family implemented by Ulrich Drepper.
1364 * POSIX spinlocks are now available.
1366 * Timed wait functions for mutex, rwlock, and semaphores are implemented.
1368 * the configure option --enable-kernel=X.Y.Z allows to strip out
1369 compatibility for kernel versions before X.Y.Z. This is currently only
1370 implemented for Linux.
1372 * the sockaddr_in6 structure changed. The IPv6 working group added a new
1373 field sin6_scope_id. This means that all programs using IPv6 should be
1374 recompiled. Don't expect binary compatibility with previous glibc
1375 versions.
1377 * various conversion modules for IBM character sets contributed by
1378 Masahide Washizawa.
1380 * IA-64 port by Jes Sorensen and HJ Lu.
1381 \f
1382 Version 2.1.3
1384 * bug fixes
1386 \f
1387 Version 2.1.2
1389 * bug fixes
1391 \f
1392 Version 2.1.1
1394 * New ISO C 9x function _Exit, imaxabs, and imaxdiv are added.
1396 * New xdr functions are added; some rpc functions are now 64bit clean.
1398 * Fixed a number of bugs and memory leaks (especially in NIS+ code).
1400 * Fixed known incompatibilities with glibc 2.0.
1402 * New functions lock64, strchrnul, rawmemchr, getutmp and getutmpx.
1404 * Optimized a number of functions (especially the ELF dynamic loader).
1406 * Update timezone data files.
1408 * lots of charmaps corrections
1410 * some new locale definitions and charmaps
1412 \f
1413 Version 2.1
1415 * Richard Henderson corrected size of struct timeval on Linux/Alpha to
1416 conform to POSIX member type requirements. Symbol versions have been
1417 adjusted as needed within the library, and for direct use by applications,
1418 but there is potential for problems if third-party libraries use
1419 struct timeval as part of their interface. This does not present
1420 a problem for X and other "essential" system libraries.
1422 * An additional locale model to support C++ Standard Library locale
1423 model and probably more was implemented by Ulrich Drepper.
1425 * Eric Youngdale and Ulrich Drepper implemented versioning of objects on
1426 symbol level.
1428 * Miles Bader provided the `argp' function family to support hierachical
1429 command line argument parsing, layered on top of getopt.
1431 * strtod accepts new hexadecimal floating-point format from ISO C 9X.
1433 * printf has two new specifiers %a and %A to print hexadecimal flaoting-point
1434 numbers.
1436 * scanf recognizes the %a and %A format for scanning floating point numbers.
1438 * the new headers <stdint.h> and <inttypes.h> from ISO C 9X provides
1439 information and interfaces for the available integer types.
1441 * about 130 new math functions were added to implement the ISO C9x math
1442 library.
1444 * the new header <complex.h> contains definitions of the complex math
1445 functions from ISO C 9X.
1447 * the new header <tgmath.h> defines generic macros to use complex or
1448 real valued functions.
1450 * Thorsten Kukuk provided an implementation for NIS+, securelevel 0, 1 and 2.
1452 * Andreas Jaeger provided a test suite for the math library.
1454 * Mark Kettenis implemented the utmpx interface and an utmp daemon.
1456 * Ulrich Drepper added character set conversion functions (iconv).
1458 * Optimized string functions have been added.
1460 * The localedata addon is now part of glibc.
1462 * An implementation of profiling shared libraries was added by Ulrich Drepper.
1464 * Thorsten Kukuk and Ulrich Drepper provided an implementation for a caching
1465 daemon for NSS (nscd).
1467 Missing a better place here are some numbers on improvements. Under
1468 Linux 2.1.125 un-tar-ing the kernel sources takes
1470 user system wall
1472 using local files 12.19s 6.88s 22.91s
1474 using NIS 13.92s 8.91s 26.34s
1476 using NIS & nscd 10.37s 7.34s 25.30s
1478 using NIS+ 27.57s 30.37s 640.46s
1480 using NIS+ & nscd 10.25s 7.83s 26.51s
1482 using NIS & old nscd [1] 13.83s 8.32s 29.60s
1484 Keep in mind that non-namelookup related operations dominate above times.
1485 It was just a common complain that using NIS+ unpacking the kernel is
1486 horribly slow.
1488 [1] The old nscd implementation is not available anymore since it was
1489 distributed with glibc up to version 2.0.98 and thus is now replaced.
1491 * Tim Waugh provided an implementation of the POSIX.2 wordexp function family.
1493 * Mark Kettenis provided a Hesiod NSS module.
1495 * The ELF dynamic loader knows how to process dynamic string tokens ($ORIGIN
1496 and $PLATFORM) in RPATHs and similar strings (Ulrich Drepper).
1498 * rcmd can now handle netgroups (Dick Streefland).
1500 * A port to the ARM was contributed by Phil Blundell, Pat Beirne and Scott
1501 Bambrough.
1503 * Support for the IPv6 protocol has been added to the socket API, as per the
1504 latest draft standards.
1506 * Support for Linux 2.2 has been added.
1508 * Interface changes relative to the latest 2.0.x release:
1509 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1510 addseverity NEW: Unix98
1511 alphasort64 NEW: LFS
1512 argp_err_exit_status NEW: argp, GNU ext
1513 argp_error NEW: argp, GNU ext
1514 argp_failure NEW: argp, GNU ext
1515 argp_help NEW: argp, GNU ext
1516 argp_parse NEW: argp, GNU ext
1517 argp_program_bug_address NEW: argp, GNU ext
1518 argp_program_version NEW: argp, GNU ext
1519 argp_program_version_hook NEW: argp, GNU ext
1520 argp_state_help NEW: argp, GNU ext
1521 argp_usage NEW: argp, GNU ext
1522 authdes_create NEW: Secure RPC
1523 authdes_getucred NEW: Secure RPC
1524 authdes_pk_create NEW: Secure RPC
1525 backtrace NEW: GNU ext.
1526 backtrace_symbols NEW: GNU ext.
1527 backtrace_symbols_fd NEW: GNU ext.
1528 cacos NEW: ISO C 9x
1529 cacosf NEW: ISO C 9x
1530 cacosh NEW: ISO C 9x
1531 cacoshf NEW: ISO C 9x
1532 cacoshl NEW: ISO C 9x
1533 cacosl NEW: ISO C 9x
1534 capget NEW: kernel
1535 capset NEW: kernel
1536 carg NEW: ISO C 9x
1537 cargf NEW: ISO C 9x
1538 cargl NEW: ISO C 9x
1539 casin NEW: ISO C 9x
1540 casinf NEW: ISO C 9x
1541 casinh NEW: ISO C 9x
1542 casinhf NEW: ISO C 9x
1543 casinhl NEW: ISO C 9x
1544 casinl NEW: ISO C 9x
1545 catan NEW: ISO C 9x
1546 catanf NEW: ISO C 9x
1547 catanh NEW: ISO C 9x
1548 catanhf NEW: ISO C 9x
1549 catanhl NEW: ISO C 9x
1550 catanl NEW: ISO C 9x
1551 cbc_crypt NEW: Secure RPC
1552 ccos NEW: ISO C 9x
1553 ccosf NEW: ISO C 9x
1554 ccosh NEW: ISO C 9x
1555 ccoshf NEW: ISO C 9x
1556 ccoshl NEW: ISO C 9x
1557 ccosl NEW: ISO C 9x
1558 cexp NEW: ISO C 9x
1559 cexpf NEW: ISO C 9x
1560 cexpl NEW: ISO C 9x
1561 cimag NEW: ISO C 9x
1562 cimagf NEW: ISO C 9x
1563 cimagl NEW: ISO C 9x
1564 clearerr_locked REMOVED
1565 clntunix_create NEW: sunrpc ext
1566 clog NEW: ISO C 9x
1567 clog10 NEW: ISO C 9x
1568 clog10f NEW: ISO C 9x
1569 clog10l NEW: ISO C 9x
1570 clogf NEW: ISO C 9x
1571 clogl NEW: ISO C 9x
1572 conj NEW: ISO C 9x
1573 conjf NEW: ISO C 9x
1574 conjl NEW: ISO C 9x
1575 cpow NEW: ISO C 9x
1576 cpowf NEW: ISO C 9x
1577 cpowl NEW: ISO C 9x
1578 cproj NEW: ISO C 9x
1579 cprojf NEW: ISO C 9x
1580 cprojl NEW: ISO C 9x
1581 creal NEW: ISO C 9x
1582 crealf NEW: ISO C 9x
1583 creall NEW: ISO C 9x
1584 creat64 NEW: LFS
1585 csin NEW: ISO C 9x
1586 csinf NEW: ISO C 9x
1587 csinh NEW: ISO C 9x
1588 csinhf NEW: ISO C 9x
1589 csinhl NEW: ISO C 9x
1590 csinl NEW: ISO C 9x
1591 csqrt NEW: ISO C 9x
1592 csqrtf NEW: ISO C 9x
1593 csqrtl NEW: ISO C 9x
1594 ctan NEW: ISO C 9x
1595 ctanf NEW: ISO C 9x
1596 ctanh NEW: ISO C 9x
1597 ctanhf NEW: ISO C 9x
1598 ctanhl NEW: ISO C 9x
1599 ctanl NEW: ISO C 9x
1600 des_setparity NEW: Secure RPC
1601 ecb_crypt NEW: Secure RPC
1602 endutxent NEW: Unix98
1603 exp10 NEW: ISO C 9x
1604 exp10f NEW: ISO C 9x
1605 exp10l NEW: ISO C 9x
1606 exp2 NEW: ISO C 9x
1607 exp2f NEW: ISO C 9x
1608 exp2l NEW: ISO C 9x
1609 fattach NEW: STREAMS
1610 fdetach NEW: STREAMS
1611 fdim NEW: ISO C 9x
1612 fdimf NEW: ISO C 9x
1613 fdiml NEW: ISO C 9x
1614 feclearexcept NEW: ISO C 9x
1615 fegetenv NEW: ISO C 9x
1616 fegetexceptflag NEW: ISO C 9x
1617 fegetround NEW: ISO C 9x
1618 feholdexcept NEW: ISO C 9x
1619 feof_locked REMOVED
1620 feraiseexcept NEW: ISO C 9x
1621 ferror_locked REMOVED
1622 fesetenv NEW: ISO C 9x
1623 fesetexceptflag NEW: ISO C 9x
1624 fesetround NEW: ISO C 9x
1625 fetestexcept NEW: ISO C 9x
1626 feupdateenv NEW: ISO C 9x
1627 fflush_locked REMOVED
1628 ffsl NEW: GNU ext.
1629 ffsll NEW: GNU ext.
1630 fgetpos64 NEW: LFS
1631 fgets_unlocked NEW: GNU ext.
1632 fileno_locked REMOVED
1633 fma NEW: ISO C 9x
1634 fmaf NEW: ISO C 9x
1635 fmal NEW: ISO C 9x
1636 fmax NEW: ISO C 9x
1637 fmaxf NEW: ISO C 9x
1638 fmaxl NEW: ISO C 9x
1639 fmin NEW: ISO C 9x
1640 fminf NEW: ISO C 9x
1641 fminl NEW: ISO C 9x
1642 fmtmsg NEW: Unix98
1643 fopen64 NEW: LFS
1644 fputc_locked REMOVED
1645 fputs_unlocked NEW: GNU ext.
1646 fread_unlocked NEW: GNU ext.
1647 freopen64 NEW: LFS
1648 fseeko NEW: Unix98
1649 fsetpos64 NEW: LFS
1650 fstatfs64 NEW: LFS
1651 fstatvfs NEW: Unix98
1652 fstatvfs64 NEW: LFS
1653 ftello NEW: Unix98
1654 ftello64 NEW: LFS
1655 ftruncate64 NEW: LFS
1656 ftw64 NEW: LFS
1657 fwrite_unlocked NEW: GNU ext.
1658 gai_strerror NEW: IPv6
1659 gamma_r REMOVED
1660 gammaf_r REMOVED
1661 gammal_r REMOVED
1662 getchar_locked REMOVED
1663 getdate NEW: Unix98
1664 getdate_err NEW: Unix98
1665 getdate_r NEW: GNU ext.
1666 getmsg NEW: STREAMS
1667 getnameinfo NEW: IPv6
1668 getnetname NEW: Secure RPC
1669 getpmsg NEW: STREAMS
1670 getpt NEW: Unix98 PTY
1671 getrlimit64 NEW: LFS
1672 getutxent NEW: Unix98
1673 getutxid NEW: Unix98
1674 getutxline NEW: Unix98
1675 glob64 NEW: GNU ext.
1676 globfree64 NEW: GNU ext.
1677 gnu_get_libc_release NEW: GNU ext.
1678 gnu_get_libc_version NEW: GNU ext.
1679 grantpt NEW: Unix98 PTY
1680 host2netname NEW: Secure RPC
1681 iconv NEW: iconv
1682 iconv_close NEW: iconv
1683 iconv_open NEW: iconv
1684 if_freenameindex NEW: IPv6
1685 if_indextoname NEW: IPv6
1686 if_nameindex NEW: IPv6
1687 if_nametoindex NEW: IPv6
1688 in6addr_any NEW: IPv6
1689 in6addr_loopback NEW: IPv6
1690 inet6_isipv4mapped NEW: IPv6
1691 isastream NEW: STREAMS
1692 iswblank NEW: GNU ext.
1693 key_decryptsession NEW: Secure RPC
1694 key_decryptsession_pk NEW: Secure RPC
1695 key_encryptsession NEW: Secure RPC
1696 key_encryptsession_pk NEW: Secure RPC
1697 key_gendes NEW: Secure RPC
1698 key_get_conv NEW: Secure RPC
1699 key_secretkey_is_set NEW: Secure RPC
1700 key_setnet NEW: Secure RPC
1701 key_setsecret NEW: Secure RPC
1702 llrint NEW: ISO C 9x
1703 llrintf NEW: ISO C 9x
1704 llrintl NEW: ISO C 9x
1705 llround NEW: ISO C 9x
1706 llroundf NEW: ISO C 9x
1707 llroundl NEW: ISO C 9x
1708 log2 NEW: ISO C 9x
1709 log2f NEW: ISO C 9x
1710 log2l NEW: ISO C 9x
1711 lrint NEW: ISO C 9x
1712 lrintf NEW: ISO C 9x
1713 lrintl NEW: ISO C 9x
1714 lround NEW: ISO C 9x
1715 lroundf NEW: ISO C 9x
1716 lroundl NEW: ISO C 9x
1717 lseek64 NEW: LFS
1718 makecontext NEW: Unix98
1719 mempcpy NEW: GNU ext.
1720 mmap64 NEW: LFS
1721 moncontrol REMOVED
1722 modify_ldt NEW: kernel
1723 nan NEW: ISO C 9x
1724 nanf NEW: ISO C 9x
1725 nanl NEW: ISO C 9x
1726 nearbyint NEW: ISO C 9x
1727 nearbyintf NEW: ISO C 9x
1728 nearbyintl NEW: ISO C 9x
1729 netname2host NEW: Secure RPC
1730 netname2user NEW: Secure RPC
1731 nexttoward NEW: ISO C 9x
1732 nexttowardf NEW: ISO C 9x
1733 nexttowardl NEW: ISO C 9x
1734 nftw NEW: Unix98
1735 nftw64 NEW: LFS
1736 open64 NEW: LFS
1737 passwd2des NEW: Secure RPC
1738 pow10 NEW: GNU ext.
1739 pow10f NEW: GNU ext.
1740 pow10l NEW: GNU ext.
1741 pread NEW: Unix98
1742 pread64 NEW: LFS
1743 printf_size NEW: GNU ext.
1744 printf_size_info NEW: GNU ext.
1745 profil_counter REMOVED
1746 pthread_mutexattr_getkind_np REPLACED
1747 pthread_mutexattr_setkind_np REPLACED
1748 ptsname NEW: Unix98 PTY
1749 ptsname_r NEW: Unix98 PTY
1750 putc_locked REMOVED
1751 putchar_locked REMOVED
1752 putgrent NEW: GNU ext.
1753 putmsg NEW: STREAMS
1754 putpmsg NEW: STREAMS
1755 pututxline NEW: Unix98
1756 pwrite NEW: Unix98
1757 pwrite64 NEW: LFS
1758 readdir64 NEW: LFS
1759 readdir64_r NEW: LFS
1760 remquo NEW: ISO C 9x
1761 remquof NEW: ISO C 9x
1762 remquol NEW: ISO C 9x
1763 round NEW: ISO C 9x
1764 roundf NEW: ISO C 9x
1765 roundl NEW: ISO C 9x
1766 rtime NEW: GNU ext.
1767 scalbln NEW: ISO C 9x
1768 scalblnf NEW: ISO C 9x
1769 scalblnl NEW: ISO C 9x
1770 scandir64 NEW: LFS
1771 sendfile NEW: kernel
1772 setcontext NEW: Unix98
1773 setrlimit64 NEW: LFS
1774 setutxent NEW: Unix98
1775 sighold NEW: Unix98
1776 sigignore NEW: Unix98
1777 sigqueue NEW: POSIX.1b
1778 sigrelse NEW: Unix98
1779 sigset NEW: POSIX.1b
1780 sigtimedwait NEW: POSIX.1b
1781 sigwaitinfo NEW: POSIX.1b
1782 sincos NEW: GNU ext.
1783 sincosf NEW: GNU ext.
1784 sincosl NEW: GNU ext.
1785 statfs64 NEW: LFS
1786 statvfs NEW: Unix98
1787 statvfs64 NEW: LFS
1788 strcasestr NEW: GNU ext.
1789 strtoimax NEW: ISO C 9x
1790 strtoumax NEW: ISO C 9x
1791 strverscmp NEW: GNU ext.
1792 svcauthdes_stats NEW: Secure RPC
1793 svcunix_create NEW: sunrpc etx
1794 svcunixfd_create NEW: sunrpc ext
1795 swapcontext NEW: Unix98
1796 tcgetsid NEW: Unix98 PTY
1797 tdestroy NEW: GNU ext.
1798 tgamma NEW: ISO C 9x
1799 tgammaf NEW: ISO C 9x
1800 tgammal NEW: ISO C 9x
1801 tmpfile64 NEW: LFS
1802 trunc NEW: ISO C 9x
1803 truncate64 NEW: LFS
1804 truncf NEW: ISO C 9x
1805 truncl NEW: ISO C 9x
1806 umount2 NEW: kernel
1807 unlockpt NEW: Unix98 PTY
1808 updwtmpx NEW: Unix98
1809 user2netname NEW: Secure RPC
1810 utmpxname NEW: Unix98
1811 versionsort NEW: GNU ext.
1812 versionsort64 NEW: GNU ext.
1813 waitid NEW: Unix98
1814 wcscasecmp NEW: GNU ext.
1815 wcsncasecmp NEW: GNU ext.
1816 wcsnlen NEW: GNU ext.
1817 wcstoimax NEW: ISO C 9x
1818 wcstoll NEW: ISO C 9x
1819 wcstoull NEW: ISO C 9x
1820 wcstoumax NEW: ISO C 9x
1821 wcswcs NEW: Unix98
1822 wordexp NEW: POSIX.2
1823 wordfree NEW: POSIX.2
1824 write_profiling REMOVED
1825 xdecrypt NEW: Secure RPC
1826 xdr_authdes_cred NEW: Secure RPC
1827 xdr_authdes_verf NEW: Secure RPC
1828 xdr_cryptkeyarg NEW: Secure RPC
1829 xdr_cryptkeyarg2 NEW: Secure RPC
1830 xdr_cryptkeyres NEW: Secure RPC
1831 xdr_getcredres NEW: Secure RPC
1832 xdr_key_netstarg NEW: Secure RPC
1833 xdr_key_netstres NEW: Secure RPC
1834 xdr_keybuf NEW: Secure RPC
1835 xdr_keystatus NEW: Secure RPC
1836 xdr_netnamestr NEW: Secure RPC
1837 xdr_sizeof NEW: Secure RPC
1838 xdr_unixcred NEW: sunrpc ext
1839 xencrypt NEW: Secure RPC
1840 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1841 \f
1842 Version 2.0.6
1844 * more bug fixes
1846 \f
1847 Version 2.0.5
1849 * more bug fixes
1851 * inet_ntoa is thread-safe
1853 * updwtmp is moved from libutil to libc
1855 * rewrite of cbrt function
1857 * update of timezone data
1858 \f
1859 Version 2.0.4
1861 * more bug fixes
1862 \f
1863 Version 2.0.3
1865 * more bug fixes
1866 \f
1867 Version 2.0.2
1869 * more bug fixes
1871 * add atoll function
1873 * fix complex problems in Berkeley DB code
1875 * fix math functions
1876 \f
1877 Version 2.0.1
1879 * fixed lots of header problems (especially Linux/GNU specific)
1881 * dynamic loader preserves all registers
1883 * Roland McGrath provided support for handling of auxiliary objects in
1884 the ELF dynamic loader.
1886 * support for parallel builds is improved
1887 \f
1888 Version 2.0
1890 * GNU extensions are no longer declared by default. To enable them you
1891 must define the macro `_GNU_SOURCE' in your program or compile with
1892 `-D_GNU_SOURCE'.
1894 * The library has changed from using GNU ld symbol aliases to using weak
1895 symbols where available. The ELF object file format supports weak
1896 symbols; GNU ld also supports weak symbols in the a.out format. (There
1897 is also now support for other GNU ld extensions in ELF. Use the
1898 `--with-elf' option to configure to indicate you have ELF, and
1899 `--with-gnu-ld' if using GNU ld.) This change resulted in the deletion
1900 of many files which contained only symbol aliases, reducing the size of
1901 the source and the compiled library; many other files were renamed to
1902 less cryptic names previously occupied by the symbol alias files.
1903 There is a new header file <elf.h> for programs which operate on
1904 files in the ELF format.
1906 * Converted to Autoconf version 2, so `configure' has more options.
1907 Run `configure --help' to see the details.
1909 * The library can now be configured to build profiling, highly-optimized
1910 (but undebuggable), and/or shared libraries (ELF with GNU ld only). The
1911 `--enable-profile', `--enable-omitfp', and `--enable-shared' options to
1912 `configure' enable building these extra libraries. The shared library is
1913 built by default when using both ELF and GNU ld. When shared libraries
1914 are enabled, the new library `-ldl' is available for arbitrary run-time
1915 loading of shared objects; its interface is defined in <dlfcn.h>. The
1916 new header file <link.h> gives access to the internals of the run-time
1917 dynamic linker, `ld.so'. The shell script `ldd' is similar to the
1918 application of same name on other systems and it provides information
1919 about dynamically linked binaries.
1921 * The C library now provides the run-time support code for profiling
1922 executables compiled with `-pg'. Programs can control the profiling code
1923 through the interface in <sys/gmon.h>. The `gmon.out' files written by
1924 the GNU C library can be read only by GNU `gprof' (from GNU binutils);
1925 the support for this file format was contributed by David Mosberger-Tang.
1927 * The math code has been replaced with a math library based on fdlibm from
1928 Sun, and modified by JT Conklin and Ulrich Drepper with i387 support, by
1929 Ian Taylor with `float' functions and by Ulrich Drepper with `long double'
1930 functions. The math functions now reside in a separate library, so
1931 programs using them will need to use `-lm' their linking commands.
1933 * John C. Bowman contributed optimized ix87 assembler inline functions.
1935 * Ulrich Drepper has contributed support for an `/etc/nsswitch.conf'
1936 mechanism similar to that found in Solaris 2. This is now used for the
1937 group, passwd, hosts, networks, services, protocols, rpc, ethers,
1938 shadow, netgroup, publickey, and alias databases. The `nsswitch.conf'
1939 file controls what services are used for each individual database. This
1940 works by loading shared libraries with names specified in `nsswitch.conf',
1941 so service modules can be changed or added at any time without even
1942 relinking any program. Currently there are the file, db, and NIS based
1943 NSS services available.
1945 * The new functions `strtoq' and `strtouq' parse integer values from
1946 strings, like `strtol' and `strtoul', but they return `long long int' and
1947 `unsigned long long int' values, respectively (64-bit quantities).
1949 * The new functions `strtof' and `strtold' parse floating-point values from
1950 strings, like `strtod', but they return `float' and `long double' values,
1951 respectively (on some machines `double' and `long double' are the same).
1953 * Ulrich Drepper has contributed new implementations of the floating-point
1954 printing and reading code used in the `printf' family of functions and
1955 `strtod', `strtof', and `strtold'. These new functions are perfectly
1956 accurate, and much faster than the old ones.
1958 * The implementation of the POSIX locale model was completely rewritten by
1959 Ulrich Drepper. This includes the new programs `localedef' and `locale'
1960 to compile the POSIX locale definition.
1962 * The former dummy implementations of the strcoll and strxfrm function are
1963 now replaced by fully functional code contributed by Ulrich Drepper. The
1964 collation information comes from the POSIX locale definitions.
1966 * The new header <langinfo.h> defines an interface for accessing
1967 various locale-dependent data (using the locale chosen with `setlocale').
1969 * Ulrich Drepper has contributed a new suite of functions for operation on
1970 wide-character and multibyte-character strings, in <wchar.h>;
1971 and classification and case conversion of wide characters, in <wctype.h>.
1972 These new functions are conforming to the ISO C, Amendement 1 specification.
1974 * There is now a second implementation of the standard I/O library available.
1975 It comes from GNU libg++ as was written by Per Bothner, heavily modified
1976 by Hongjiu Lu and made thread safe by Ulrich Drepper.
1978 * You can now use positional parameter specifications in format strings
1979 for the `printf' and `scanf' families of functions. For example,
1980 `printf ("Number %2$d, Mr %1$s\n", "Jones", 6);'' prints
1981 ``Number 6, Mr Jones''. This is mainly useful when providing different
1982 format strings for different languages, whose grammars may dictate
1983 different orderings of the values being printed. To support this
1984 feature, the interface for `register_printf_handler' has changed; see
1985 the header file <printf.h> for details.
1987 * The `printf' and `scanf' families of functions now understand a new
1988 formatting flag for numeric conversions: the ' flag (e.g. %'d or %'f) says
1989 to group numbers as indicated by the locale; for `scanf' and friends, this
1990 says to accept as valid only a number with all the proper grouping
1991 separators in the right places. In the default "C" locale, numbers are
1992 not grouped; but locales for specific countries will define the usual
1993 conventions (i.e. separate thousands with `,' in the US locale).
1995 * The pgrp functions have been regularized, slightly incompatibly but much
1996 less confusingly. The core functions are now `getpgid' and `setpgid',
1997 which take arguments for the PID to operate on; the POSIX.1 `getpgrp' (no
1998 argument) and BSD `setpgrp' (identical to `setpgid') functions are
1999 provided for compatibility. There is no longer an incompatible `getpgrp'
2000 with an argument declared under _BSD_SOURCE; no BSD code uses it.
2002 * The new header file <fts.h> and suite of functions simplify programs that
2003 operate on directory trees. This code comes from 4.4 BSD.
2005 * The resolver code has been updated from the BIND 4.9.5-P1 release.
2006 Parts of the code were heavily modified by Ulrich Drepper to fit in the
2007 NSS scheme used in glibc.
2009 * There is a new malloc debugging hook `__memalign_hook'.
2011 * There are new typedefs `ushort' for `unsigned short int' and `uint' for
2012 `unsigned int' in <sys/types.h>. These are for compatibility only and
2013 their use is discouraged.
2015 * The `-lmcheck' library to enable standard malloc debugging hooks is now
2016 done differently, so that it works even without GNU ld.
2018 * New function `euidaccess' checks allowed access to a file like `access',
2019 but using the effective IDs instead of the real IDs.
2021 * The time zone data files have been updated for the latest and greatest
2022 local time conventions of the countries of the world.
2024 * The new function `dirfd' extracts the file descriptor used by a DIR stream;
2025 see <dirent.h>.
2027 * The new functions `ecvt', `fcvt', and `gcvt' provide an obsolete interface
2028 for formatting floating-point numbers. They are provided only for
2029 compatibility; new programs should use `sprintf' instead. There are
2030 also equivalent function for the `long double' floating-point type and
2031 all functions also exist in a reentrant form.
2033 * The new auxiliary library `-lutil' from 4.4 BSD contains various
2034 functions for maintaining the login-record files (primarily of use to
2035 system programs such as `login'), and convenient functions for
2036 allocating and initializing a pseudo-terminal (pty) device.
2038 * Ulrich Drepper has contributed new support for System V style
2039 shared memory and IPC on systems that support it.
2041 * Ulrich Drepper has contributed several miscellaneous new functions found
2042 in System V: The `hsearch' family of functions provide an effective
2043 implementation of hash tables; `a64l' and `l64a' provide a very simple
2044 binary to ASCII mapping; `drand48' and friends provide a 48-bit random
2045 number generator.
2047 * Ulrich Drepper has contributed new reentrant counterparts for the
2048 `random' and `hsearch' families of functions; `random_r', `hsearch_r', etc.
2050 * Ulrich Drepper has contributed new, highly-optimized versions of several
2051 string functions for the i486/Pentium family of processors.
2053 * Ulrich Drepper has updated the Linux-specific code, based largely
2054 on work done in Hongjiu Lu's version of GNU libc for Linux.
2055 The GNU library now supports Linux versions 2.0.10 and later,
2056 using the ELF object file format (i[3456]86-*-linux).
2058 * Andreas Schwab has ported the C library to Linux/m68k (m68k-*-linux).
2060 * David Mosberger-Tang and Richard Henderson have ported the C library
2061 to Linux/Alpha (alpha-*-linux). Richard Henderson contributed the
2062 dynamic linking support for ELF/Alpha.
2064 * Richard Henderson contributed several Alpha optimized assembler function
2065 for arithmetic and string handling.
2067 * Ulrich Drepper has contributed a new set of message catalog functions to
2068 support multiple languages using the <libintl.h> interface, for use with
2069 his new package GNU gettext. Translation volunteers have contributed
2070 catalogs of the library's messages in Spanish, German, and Korean.
2072 * For compatibility with XPG4, Ulrich Drepper has contributed the `gencat'
2073 program and the `catgets' function for reading the catalog files it
2074 creates. (The <libintl.h> interface is preferred; we include the
2075 <nl_types.h> interface using `catgets' only for source compatibility with
2076 programs already written to use it.)
2078 * New header file <values.h> gives SVID-compatible names for <limits.h>
2079 constants.
2081 * Various new macros, declarations, and small header files for compatibility
2082 with 4.4 BSD.
2084 * New function `group_member' is a convenient way to check if a process has
2085 a given effective group ID.
2087 * When using GCC 2.7 and later, the socket functions are now declared in a
2088 special way so that passing an argument of type `struct sockaddr_in *',
2089 `struct sockaddr_ns *', or `struct sockaddr_un *' instead of the generic
2090 `struct sockaddr *' type, does not generate a type-clash warning.
2092 * New function `error' declared in header file <error.h> is a convenient
2093 function for printing error messages and optionally exiting; this is the
2094 canonical function used in GNU programs. The new functions `err', `warn',
2095 and friends in header file <err.h> are the canonical 4.4 BSD interface for
2096 doing the same thing.
2098 * The <glob.h> interface has several new flags from 4.4 BSD that extend the
2099 POSIX.2 `glob' function to do ~ and {...} expansion.
2101 * New function `unsetenv' complements `setenv' for compatibility with 4.4 BSD.
2102 `clearenv' which is used in POSIX.9 is also available.
2104 * New function `getsid' returns session ID number on systems that support it.
2106 * We have incorporated the 4.4 BSD `db' library (version 1.85). New header
2107 files <db.h> and <mpool.h> provide a rich set of functions for several
2108 types of simple databases stored in memory and in files, and <ndbm.h> is
2109 an old `ndbm'-compatible interface using the `db' functions. Link with
2110 `-ldb' to get these functions.
2112 * New macro `strdupa' copies a string like `strdup', but uses local stack
2113 space from `alloca' instead of dynamic heap space from `malloc'.
2115 * New function `strnlen' is like `strlen' but searches only a given maximum
2116 number of characters for the null terminator. `stpncpy', `strndup' and
2117 `strndupa' are similar variants for the `stpcpy', `strdup' and `strdupa'
2118 function.
2120 * New function `statfs' in header <sys/statfs.h>.
2122 * The new <argz.h> and <envz.h> interfaces contributed by Miles Bader
2123 provide convenient functions for operating on blocks of null-terminated
2124 strings.
2126 * A new suite of functions in <utmp.h> handle all the details of reading
2127 and writing the utmp file.
2129 * An implementation of the NIS/YP(tm) based NSS service was contributed by
2130 Thorsten Kukuk.
2132 * Paul Eggert and Ulrich Drepper modified the `strftime' function to be
2133 completely POSIX compliant and also implemented the extended functionality
2134 to handle alternate digit representation and alternate era date formats.
2136 * Ulrich Drepper provided an implementation of the `strptime' function
2137 defined in XPG4.2 which transforms a string into a `struct tm' value.
2139 * Paul Eggert provided the tzselect shell script as part of the timezone
2140 code. The shell script makes it easy to select the correct timezone
2141 specification.
2143 * The implementation of the malloc family of functions is completely replaced
2144 by a new implementation by Doug Lea with many improvements by Wolfram Gloger.
2145 The implementation uses the mmap function (if available) and it is
2146 optimized for the use in multi threaded programs.
2148 * Ulrich Drepper contributed a MD5 "encryption" for the crypt family of
2149 functions. This new functionality is usable by specifying a special
2150 salt string and it is compatible with implementation on *BSD systems.
2152 * Lots of functions from the XPG4.2 standard were added by Ulrich Drepper:
2153 `getsubopt' to handle second level command line options, `bsd_signal'
2154 to access BSD style `signal' functionality, the obsolete `regexp' style
2155 expression matcher.
2157 * the `lchown' function is available on system which support this
2158 functionality.
2160 * The implementation of the shadow password handling function was contributed
2161 by Ulrich Drepper.
2163 * David Mosberger-Tang changed the SunRPC implementation to be 64bit safe.
2165 * POSIX.1g support was added. The <sys/select.h> header is available,
2166 `isfdtype' and `pselect' are implemented. Craig Metz contributed an
2167 implementation of `getaddrinfo'.
2168 \f
2169 Version 1.09
2171 * For cross-compilation you should now set `BUILD_CC' instead of `HOST_CC'.
2173 * New header file <fstab.h> and new functions `getfsspec', `getfsent' and
2174 friends, for parsing /etc/fstab. This code comes from 4.4 BSD.
2176 * The new function `daemon' from 4.4 BSD is useful for server programs that
2177 want to put themselves in the background.
2179 * Joel Sherrill has contributed support for several standalone boards that
2180 run without an operating system.
2182 * `printf', `scanf' and friends now accept a `q' type modifier for long
2183 long int as well as `ll'. Formats using these might be `%qu' or `%lld'.
2185 * All of the code taken from BSD (notably most of the math and networking
2186 routines) has been updated from the BSD 4.4-Lite release.
2188 * The resolver code has been updated from the BIND-4.9.3-BETA9 release.
2190 * The new functions `getdomainname' and `setdomainname' fetch or change the
2191 YP/NIS domain name. These are system calls which exist on systems which
2192 have YP (aka NIS).
2194 * The time zone data files have been updated for the latest international
2195 conventions.
2197 * The SunRPC programs `portmap' and `rpcinfo' are now installed in
2198 $(sbindir) (usually /usr/local/sbin) instead of $(bindir).
2199 \f
2200 Version 1.08
2202 * The C library now includes support for Sun RPC, from Sun's free
2203 RPCSRC-4.0 distribution. The `portmap', `rpcinfo', and `rpcgen' programs
2204 are included. (There is still no support for YP.)
2206 * Tom Quinn has contributed a port of the C library to SGI machines running
2207 Irix 4 (mips-sgi-irix4).
2209 * The new `lockf' function is a simplified interface to the locking
2210 facilities of `fcntl', included for compatibility.
2212 * New time functions `timegm', `timelocal', and `dysize' for compatibility.
2214 * New header file <sys/timeb.h> and new function `ftime' for compatibility.
2216 * New header files <poll.h> and <sys/poll.h> and new function `poll' for
2217 compatibility.
2219 * The error message printed by `assert' for a failed assertion now includes
2220 the name of the program (if using GNU ld) and the name of the calling
2221 function (with versions of GCC that support this).
2223 * The `psignal' function is now declared in <signal.h>, not <stdio.h>.
2225 * The library now includes the <sys/mman.h> header file and memory
2226 management functions `mmap', `munmap', `mprotect', `msync', and
2227 `madvise', on systems that support those facilities.
2229 * The interface for `mcheck' has changed slightly: the function called to
2230 abort the program when an allocation inconsistency is detected now takes
2231 an argument that indicates the type of failure. The new function
2232 `mprobe' lets you request a consistency check for a particular block at
2233 any time (checks are normally done only when you call `free' or `realloc'
2234 on a block).
2236 * It is now possible to easily cross-compile the C library, building on one
2237 system a library to run on another machine and/or operating system. All
2238 you need to do is set the variable `HOST_CC' in `configparms' to the
2239 native compiler for programs to run on the machine you are building on (a
2240 few generator programs are used on Unix systems); set `CC' to the
2241 cross-compiler.
2243 * The new function `fexecve' (only implemented on the GNU system) executes
2244 a program file given a file descriptor already open on the file.
2245 \f
2246 Version 1.07
2248 * Brendan Kehoe has contributed most of a port to the DEC Alpha
2249 running OSF/1 (alpha-dec-osf1). He says it is 75% complete.
2251 * You can set the variable `libprefix' in `configparms' to specify a prefix
2252 to be prepended to installed library files; this makes it easy to install
2253 the GNU C library to be linked as `-lgnuc' or whatever.
2255 * The new `stpncpy' is a cross between `stpcpy' and `strncpy': It
2256 copies a limited number of characters from a string, and returns the
2257 address of the last character written.
2259 * You no longer need to check for whether the installed `stddef.h' is
2260 compatible with the GNU C library. configure now checks for you.
2262 * You can now define a per-stream `fileno' function to convert the
2263 stream's cookie into an integral file descriptor.
2265 * ``malloc (0)'' no longer returns a null pointer. Instead, it
2266 allocates zero bytes of storage, and returns a unique pointer which
2267 you can pass to `realloc' or `free'. The behavior is undefined if
2268 you dereference this pointer.
2270 * The C library now runs on Sony NEWS m68k machines running either
2271 NewsOS 3 or NewsOS 4.
2273 * The new `syscall' function is a system-dependent primitive function
2274 for invoking system calls. It has the canonical behavior on Unix
2275 systems, including unreliable return values for some calls (such as
2276 `pipe', `fork' and `getppid').
2278 * The error code `EWOULDBLOCK' is now obsolete; it is always defined
2279 to `EAGAIN', which is the preferred name. On systems whose kernels
2280 use two distinct codes, the C library now translates EWOULDBLOCK to
2281 EAGAIN in every system call function.
2282 \f
2283 Version 1.06
2285 * The GNU C Library Reference Manual is now distributed with the library.
2286 `make dvi' will produce a DVI file of the printed manual.
2287 `make info' will produce Info files that you can read on line using C-h i
2288 in Emacs or the `info' program.
2289 Please send comments on the manual to bug-glibc-manual@gnu.org.
2291 * The library now supports SVR4 on i386s (i386-unknown-sysv4).
2293 * Brendan Kehoe has contributed a port to Sun SPARCs running Solaris 2.
2295 * Jason Merrill has contributed a port to the Sequent Symmetry running
2296 Dynix version 3 (i386-sequent-dynix).
2298 * The library has been ported to i386s running SCO 3.2.4 (also known as SCO
2299 ODT 2.0; i386-unknown-sco3.2.4) or SCO 3.2 (i386-unknown-sco3.2).
2301 * New function `memory_warnings' lets you arrange to get warnings when
2302 malloc is running out of memory to allocate, like Emacs gives you.
2304 * The C library now contains the relocating allocator used in Emacs 19 for
2305 its editing buffers. This allocator (ralloc) minimizes allocation
2306 overhead and fragmentation by moving allocated regions around whenever it
2307 needs to. You always refer to a ralloc'd region with a "handle" (a
2308 pointer to a pointer--an object of type `void **').
2310 * There is a new `printf' format: `%m' gives you the string corresponding
2311 to the error code in `errno'.
2313 * In `scanf' formats, you can now use `%as' or `%a[' to do the normal `%s'
2314 or `%[' conversion, but instead of filling in a fixed-sized buffer you
2315 pass, the `a' modifier says to fill in a `char **' you pass with a
2316 malloc'd string.
2318 * The `fnmatch' function supports the new flag bits `FNM_LEADING_DIR' and
2319 `FNM_CASEFOLD'. `FNM_LEADING_DIR' lets a pattern like `foo*' match a
2320 name like `foo/bar'. `FNM_CASEFOLD' says to ignore case in matching.
2322 * `mkstemp' is a traditional Unix function to atomically create and open a
2323 uniquely-named temporary file.
2324 \f
2325 Version 1.05
2327 * The standard location for the file that says what the local timezone is
2328 has changed again. It is now `/usr/local/etc/localtime' (or more
2329 precisely, `${prefix}/etc/localtime') rather than `/etc/localtime'.
2331 * The distribution no longer contains any files with names longer than 14
2332 characters.
2334 * `struct ttyent' has two new flag bits: TTY_TRUSTED and TTY_CONSOLE.
2335 These are set by the new `trusted' and `console' keywords in `/etc/ttys'.
2337 * New functions `ttyslot' and `syslog' from 4.4 BSD.
2338 \f
2339 Version 1.04
2341 * The configuration process has changed quite a bit. The `configure'
2342 script is now used just like the configuration scripts for other GNU
2343 packages. The `sysdeps' directory hierarchy is much rearranged.
2344 The file `INSTALL' explains the new scheme in detail.
2346 * The header files no longer need to be processed into ANSI C and
2347 traditional C versions. There is just one set of files to install, and
2348 it will work with ANSI or old C compilers (including `gcc -traditional').
2350 * Brendan Kehoe and Ian Lance Taylor have ported the library to the
2351 MIPS DECStation running Ultrix 4.
2353 * The Sun 4 startup code (crt0) can now properly load SunOS 4 shared libraries.
2354 Tom Quinn contributed the initial code. The GNU C library can NOT yet be
2355 made itself into a shared library.
2357 * Yet further improved support for the i386, running 4.3 BSD-like systems
2358 (such as Mach 3 with the Unix single-server), or System V.
2360 * New function `strncasecmp' to do case-insensitive string comparison
2361 with limited length.
2363 * New function `strsep' is a reentrant alternative to `strtok'.
2365 * New functions `scandir' and `alphasort' for searching directories.
2367 * New function `setenv' is a better interface to `putenv'.
2369 * Ian Lance Taylor has contributed an implementation of the SVID `ftw'
2370 function for traversing a directory tree.
2372 * The GNU obstack package is now also part of the C library.
2373 The new function `open_obstack_stream' creates a stdio stream that
2374 writes onto an obstack; `obstack_printf' and `obstack_vprintf' do
2375 formatted output directly to an obstack.
2377 * Miscellaneous new functions: reboot, nice, sigaltstack (4.4 BSD only),
2378 cfmakeraw, getusershell, getpass, swab, getttyent, seteuid, setegid.
2380 * `FNM_FILE_NAME' is another name for `FNM_PATHNAME', used with `fnmatch'.
2382 * The new functions `strfry' and `memfrob' do mysterious and wonderful
2383 things to your strings.
2385 * There are some new test programs: test-fseek, testmb, and testrand.
2387 * Some work has been done to begin porting the library to 4.4 BSD and Linux.
2388 These ports are not finished, but are a good starting place for really
2389 supporting those systems.
2391 * `/etc/localtime' is now the standard location for the file that says what
2392 the local timezone is, rather than `/usr/local/lib/zoneinfo/localtime'.
2393 This follows the general principle that `/etc' is the place for all local
2394 configuration files.
2396 * The C library header files now use `extern "C"' when used by the C++
2397 compiler, so the C library should now work with C++ code.
2399 * The header file <bstring.h> is gone. <string.h> now declares bcopy,
2400 bcmp, bzero, and ffs. (Update: nowadays these functions are declared
2401 in <strings.h>.)
2403 * Mike Haertel (of GNU e?grep and malloc fame) has written a new sorting
2404 function which uses the `merge sort' algorithm, and is said to be
2405 significantly faster than the old GNU `qsort' function. Merge sort is
2406 now the standard `qsort' function. The new algorithm can require a lot
2407 of temporary storage; so, the old sorting function is called when the
2408 required storage is not available.
2410 * The C library now includes Michael Glad's Ultra Fast Crypt, which
2411 provides the Unix `crypt' function, plus some other entry points.
2413 * The code and header files taken from 4.4 BSD have been updated with the
2414 latest files released from Berkeley.
2415 \f
2416 ----------------------------------------------------------------------
2417 Copyright information:
2419 Copyright (C) 1992-2014 Free Software Foundation, Inc.
2421 Permission is granted to anyone to make or distribute verbatim copies
2422 of this document as received, in any medium, provided that the
2423 copyright notice and this permission notice are preserved,
2424 thus giving the recipient permission to redistribute in turn.
2426 Permission is granted to distribute modified versions
2427 of this document, or of portions of it,
2428 under the above conditions, provided also that they
2429 carry prominent notices stating who last changed them.
2430 \f
2431 Local variables:
2432 version-control: never
2433 fill-column: 76
2434 End: