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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, 16447, 16532, 16545, 16574, 16600, 16609, 16610,
13 16611, 16613, 16623, 16632.
15 * The am33 port, which had not worked for several years, has been removed
16 from ports.
18 * The _BSD_SOURCE and _SVID_SOURCE feature test macros are no longer
19 supported; they now act the same as _DEFAULT_SOURCE (but generate a
20 warning). Except for cases where _BSD_SOURCE enabled BSD interfaces that
21 conflicted with POSIX (support for which was removed in 2.19), the
22 interfaces those macros enabled remain available when compiling with
23 _GNU_SOURCE defined, with _DEFAULT_SOURCE defined, or without any feature
24 test macros defined.
25 \f
26 Version 2.19
28 * The following bugs are resolved with this release:
30 156, 387, 431, 762, 832, 926, 2801, 4772, 6786, 6787, 6807, 6810, 6981,
31 7003, 9721, 9954, 10253, 10278, 11087, 11157, 11214, 12100, 12486, 12751,
32 12986, 13028, 13982, 13985, 14029, 14032, 14120, 14143, 14155, 14286,
33 14547, 14699, 14752, 14782, 14876, 14910, 15004, 15048, 15073, 15089,
34 15128, 15218, 15268, 15277, 15308, 15362, 15374, 15400, 15425, 15427,
35 15483, 15522, 15531, 15532, 15593, 15601, 15608, 15609, 15610, 15632,
36 15640, 15670, 15672, 15680, 15681, 15723, 15734, 15735, 15736, 15748,
37 15749, 15754, 15760, 15763, 15764, 15797, 15799, 15825, 15843, 15844,
38 15846, 15847, 15849, 15850, 15855, 15856, 15857, 15859, 15867, 15886,
39 15887, 15890, 15892, 15893, 15895, 15897, 15901, 15905, 15909, 15915,
40 15917, 15919, 15921, 15923, 15939, 15941, 15948, 15963, 15966, 15968,
41 15985, 15988, 15997, 16032, 16034, 16036, 16037, 16038, 16041, 16046,
42 16055, 16071, 16072, 16074, 16077, 16078, 16103, 16112, 16143, 16144,
43 16146, 16150, 16151, 16153, 16167, 16169, 16172, 16195, 16214, 16245,
44 16271, 16274, 16283, 16289, 16293, 16314, 16316, 16330, 16337, 16338,
45 16356, 16365, 16366, 16369, 16372, 16375, 16379, 16384, 16385, 16386,
46 16387, 16390, 16394, 16398, 16400, 16407, 16408, 16414, 16430, 16431,
47 16453, 16474, 16506, 16510, 16529
49 * Slovenian translations for glibc messages have been contributed by the
50 Translation Project's Slovenian team of translators.
52 * The public headers no longer use __unused nor __block. This change is to
53 support compiling programs that are derived from BSD sources and use
54 __unused internally, and to support compiling with Clang's -fblock
55 extension which uses __block.
57 * CVE-2012-4412 The strcoll implementation caches indices and rules for
58 large collation sequences to optimize multiple passes. This cache
59 computation may overflow for large collation sequences and may cause a
60 stack or buffer overflow. This is now fixed to use a slower algorithm
61 which does not use a cache if there is an integer overflow.
63 * CVE-2012-4424 The strcoll implementation uses malloc to cache indices and
64 rules for large collation sequences to optimize multiple passes and falls
65 back to alloca if malloc fails, resulting in a possible stack overflow.
66 The implementation now falls back to an uncached collation sequence lookup
67 if malloc fails.
69 * CVE-2013-4788 The pointer guard used for pointer mangling was not
70 initialized for static applications resulting in the security feature
71 being disabled. The pointer guard is now correctly initialized to a
72 random value for static applications. Existing static applications need
73 to be recompiled to take advantage of the fix (bug 15754).
75 * CVE-2013-4237 The readdir_r function could write more than NAME_MAX bytes
76 to the d_name member of struct dirent, or omit the terminating NUL
77 character. (Bugzilla #14699).
79 * CVE-2013-4332 The pvalloc, valloc, memalign, posix_memalign and
80 aligned_alloc functions could allocate too few bytes or corrupt the
81 heap when passed very large allocation size values (Bugzilla #15855,
82 #15856, #15857).
84 * CVE-2013-4458 Stack overflow in getaddrinfo with large number of results
85 for AF_INET6 has been fixed (Bugzilla #16072).
87 * New locales: ak_GH, anp_IN, ar_SS, cmn_TW, hak_TW, lzh_TW, nan_TW, pap_AW,
88 pap_CW, quz_PE, the_NP.
90 * Substantially revised locales: gd_GB, ht_HT
92 * The LC_ADDRESS field was updated to support country_car for almost all
93 supported locales.
95 * ISO 1427 definitions were updated.
97 * ISO 3166 definitions were updated.
99 * The localedef utility now supports --big-endian and --little-endian
100 command-line options to generate locales for a different system from that
101 for which the C library was built.
103 * Binary locale files now only depend on the endianness of the system for
104 which they are generated and not on other properties of that system. As a
105 consequence, binary files generated with new localedef may be incompatible
106 with old versions of the GNU C Library, and binary files generated with
107 old localedef may be incompatible with this version of the GNU C Library,
108 in the following circumstances:
110 + Locale files may be incompatible on m68k systems.
112 + Locale archive files (but not separate files for individual locales) may
113 be incompatible on systems where plain "char" is signed.
115 * The configure option --disable-versioning has been removed. Builds with
116 --disable-versioning had not worked for several years.
118 * ISO 639 definitions were updated for Chiga (cgg) and Chinese (gan, hak, czh,
119 cjy, lzh, cmn, mnp, cdo, czo, cpx, wuu, hsn, yue).
121 * SystemTap probes for malloc have been introduced.
123 * SystemTap probes for slow multiple precision fallback paths of
124 transcendental functions have been introduced.
126 * Support for powerpc64le has been added.
128 * The soft-float powerpc port now supports e500 processors.
130 * Support for STT_GNU_IFUNC symbols added for ppc32/power4+ and ppc64.
132 * A new feature test macro _DEFAULT_SOURCE is available to enable the same
133 set of header declarations that are enabled by default, even when other
134 feature test macros or compiler options such as -std=c99 would otherwise
135 disable some of those declarations.
137 * The _BSD_SOURCE feature test macro no longer enables BSD interfaces that
138 conflict with POSIX. The libbsd-compat library (which was a dummy library
139 that did nothing) has also been removed.
141 * Preliminary documentation about Multi-Thread, Async-Signal and
142 Async-Cancel Safety has been added.
143 \f
144 Version 2.18
146 * The following bugs are resolved with this release:
148 2546, 2560, 5159, 6809, 7006, 10060, 10062, 10283, 10357, 10686, 11120,
149 11561, 12310, 12387, 12492, 12515, 12723, 13550, 13889, 13951, 13988,
150 14142, 14176, 14200, 14256, 14280, 14293, 14317, 14327, 14478, 14496,
151 14582, 14686, 14812, 14888, 14894, 14907, 14908, 14909, 14920, 14952,
152 14964, 14981, 14982, 14985, 14991, 14994, 14996, 15000, 15003, 15006,
153 15007, 15014, 15020, 15022, 15023, 15036, 15054, 15055, 15062, 15078,
154 15084, 15085, 15086, 15100, 15160, 15214, 15221, 15232, 15234, 15283,
155 15285, 15287, 15304, 15305, 15307, 15309, 15327, 15330, 15335, 15336,
156 15337, 15339, 15342, 15346, 15359, 15361, 15366, 15380, 15381, 15394,
157 15395, 15405, 15406, 15409, 15416, 15418, 15419, 15423, 15424, 15426,
158 15429, 15431, 15432, 15441, 15442, 15448, 15465, 15480, 15485, 15488,
159 15490, 15492, 15493, 15497, 15506, 15529, 15536, 15553, 15577, 15583,
160 15618, 15627, 15631, 15654, 15655, 15666, 15667, 15674, 15711, 15755,
161 15759.
163 * CVE-2013-2207 Incorrectly granting access to another user's pseudo-terminal
164 has been fixed by disabling the use of pt_chown (Bugzilla #15755).
165 Distributions can re-enable building and using pt_chown via the new configure
166 option `--enable-pt_chown'. Enabling the use of pt_chown carries with it
167 considerable security risks and should only be used if the distribution
168 understands and accepts the risks.
170 * CVE-2013-0242 Buffer overrun in regexp matcher has been fixed (Bugzilla
171 #15078).
173 * CVE-2013-1914 Stack overflow in getaddrinfo with many results has been
174 fixed (Bugzilla #15330).
176 * Add support for calling C++11 thread_local object destructors on thread
177 and program exit. This needs compiler support for offloading C++11
178 destructor calls to glibc.
180 * Improved worst case performance of libm functions with double inputs and
181 output.
183 * Support for priority inherited mutexes in pthread condition variables on
184 non-x86 architectures.
186 * Port to Xilinx MicroBlaze contributed by David Holsgrove.
188 * Optimized string functions for AArch64. Implemented by Marcus Shawcroft.
190 * Optimized string functions for ARM. Implemented by Will Newton and
191 Richard Henderson.
193 * Optimized libm functions for SPARC. Implemented by David S. Miller.
195 * Support for building more of ARM glibc as Thumb-2 code. Implemented by
196 Richard Henderson.
198 * Support for building most of MIPS glibc as MIPS16 code. Implemented by
199 Chung-Lin Tang, Maciej W. Rozycki and Maxim Kuvyrkov.
201 * Added a benchmark framework to track performance of functions in glibc.
203 * New <math.h> macro named issignaling to check for a signaling NaN (sNaN).
204 It is based on draft TS 18661 and currently enabled as a GNU extension.
206 * On Linux, the clock function now uses the clock_gettime system call
207 for improved precision, rather than old times system call.
209 * Added support for version-3 tz format files. This is needed when using
210 the tz database release 2013e or later, and affects a few unusual cases --
211 currently only TZ='America/Godthab' for time stamps after 2037.
213 * Added new API functions pthread_getattr_default_np and
214 pthread_setattr_default_np to get and set the default pthread
215 attributes of a process.
217 * Added support for TSX lock elision for pthread mutexes on i386 and x86-64.
218 This may improve lock scaling of existing programs on TSX capable systems.
219 When the --enable-lock-elision=yes parameter is specified at configure
220 time lock elision will be enabled by default for all PTHREAD_MUTEX_DEFAULT
221 mutexes.
223 * Support added for AT_HWCAP2 (to coincide with Linux kernel 3.10
224 availability). Implemented by Ryan S. Arnold.
226 * Support added for POWER8 platform. Implemented by Ryan S. Arnold.
227 \f
228 Version 2.17
230 * The following bugs are resolved with this release:
232 1349, 3439, 3479, 3665, 5044, 5246, 5298, 5400, 6530, 6677, 6778, 6808,
233 9685, 9914, 10014, 10038, 10114, 10191, 10631, 10873, 11438, 11607, 11638,
234 11741, 12140, 13013, 13412, 13542, 13601, 13603, 13604, 13629, 13679,
235 13696, 13698, 13717, 13741, 13759, 13761, 13763, 13881, 13939, 13950,
236 13952, 13966, 14042, 14047, 14090, 14150, 14151, 14152, 14154, 14157,
237 14166, 14173, 14195, 14197, 14237, 14246, 14251, 14252, 14283, 14298,
238 14303, 14307, 14328, 14331, 14336, 14337, 14347, 14349, 14368, 14376,
239 14417, 14447, 14459, 14476, 14477, 14501, 14505, 14510, 14516, 14518,
240 14519, 14530, 14532, 14538, 14543, 14544, 14545, 14557, 14562, 14568,
241 14576, 14579, 14583, 14587, 14595, 14602, 14610, 14621, 14638, 14645,
242 14648, 14652, 14660, 14661, 14669, 14672, 14683, 14694, 14716, 14719,
243 14743, 14767, 14783, 14784, 14785, 14793, 14796, 14797, 14801, 14803,
244 14805, 14807, 14811, 14815, 14821, 14822, 14824, 14828, 14831, 14833,
245 14835, 14838, 14856, 14863, 14865, 14866, 14868, 14869, 14871, 14872,
246 14879, 14889, 14893, 14898, 14914.
248 * Optimization of memcpy for MIPS.
250 * CVE-2011-4609 svc_run() produces high cpu usage when accept fails with
251 EMFILE has been fixed (Bugzilla #14889).
253 * The add-on ports collection is now distributed in the "ports" subdirectory
254 of the main GNU C Library distribution, rather than separately.
256 * Port to ARM AArch64 contributed by Linaro.
258 * Support for STT_GNU_IFUNC symbols added for s390 and s390x.
259 Optimized versions of memcpy, memset, and memcmp added for System z10 and
260 zEnterprise z196.
261 Implemented by Andreas Krebbel.
263 * The new function secure_getenv allows secure access to the environment,
264 returning NULL if running in a SUID/SGID process. This function replaces
265 the internal function __secure_getenv.
267 * SystemTap static probes have been added into the dynamic linker.
268 Implemented by Gary Benson.
270 * Optimizations of string functions strstr, strcasestr and memmem.
271 Implemented by Maxim Kuvyrkov.
273 * The minimum Linux kernel version that this version of the GNU C Library
274 can be used with is 2.6.16.
276 * Optimizations of string functions memchr, wcschr, wcscpy, and wcsrchr for
277 powerpc POWER7. Implemented by Will Schmidt.
279 * New configure option --disable-nscd builds the C library such that it
280 never attempts to contact the Name Service Caching Daemon (nscd).
281 New configure option --disable-build-nscd avoids building nscd itself;
282 this is the default if --disable-nscd is used.
284 * Improved support for cross-compilation, including cross-testing and
285 bootstrap builds without a previously built glibc.
287 * Several testsuite tests are now able to test multiple IFUNC variants of an
288 interface, rather than just testing the one that would be chooen by
289 default.
291 * New configure options --with-bugurl and --with-pkgversion, for
292 distributors to use to embed their bug-reporting and package version
293 information in --help and --version output.
295 * The ttyname and ttyname_r functions on Linux now fall back to searching for
296 the tty file descriptor in /dev/pts or /dev if /proc is not available. This
297 allows creation of chroots without the procfs mounted on /proc.
299 * The `crypt' function now fails if passed salt bytes that violate the
300 specification for those values. On Linux, the `crypt' function will
301 consult /proc/sys/crypto/fips_enabled to determine if "FIPS mode" is
302 enabled, and fail on encrypted strings using the MD5 or DES algorithm
303 when the mode is enabled.
305 * The `clock_*' suite of functions (declared in <time.h>) is now available
306 directly in the main C library. Previously it was necessary to link with
307 -lrt to use these functions. This change has the effect that a
308 single-threaded program that uses a function such as `clock_gettime' (and
309 is not linked with -lrt) will no longer implicitly load the pthreads
310 library at runtime and so will not suffer the overheads associated with
311 multi-thread support in other code such as the C++ runtime library.
313 * New locales: ayc_PE, doi_IN, ia_FR, mni_IN, nhn_MX, niu_NU, niu_NZ,
314 sat_IN, and szl_PL.
315 \f
316 Version 2.16
318 * The following bugs are resolved with this release:
320 174, 208, 350, 369, 411, 706, 766, 887, 2074, 2541, 2547, 2548, 2550,
321 2551, 2552, 2553, 2554, 2562, 2563, 2565, 2566, 2570, 2576, 2636, 2678,
322 3335, 3440, 3748, 3768, 3866, 3868, 3906, 3976, 3992, 4026, 4108, 4596,
323 4822, 5077, 5461, 5805, 5993, 6471, 6486, 6578, 6649, 6730, 6770, 6794,
324 6884, 6890, 6894, 6895, 6907, 6911, 6959, 7064, 9739, 9902, 10110, 10135,
325 10140, 10153, 10210, 10254, 10346, 10375, 10545, 10716, 10846, 11174,
326 11261, 11322, 11365, 11451, 11494, 11521, 11677, 11837, 11959, 12047,
327 12097, 12193, 12194, 12297, 12298, 12301, 12340, 12354, 12416, 12495,
328 13058, 13223, 13361, 13525, 13526, 13527, 13528, 13529, 13530, 13531,
329 13532, 13533, 13547, 13551, 13552, 13553, 13555, 13556, 13559, 13563,
330 13566, 13576, 13579, 13583, 13592, 13594, 13613, 13618, 13637, 13656,
331 13658, 13673, 13691, 13695, 13704, 13705, 13706, 13718, 13726, 13738,
332 13739, 13743, 13750, 13758, 13760, 13761, 13775, 13786, 13787, 13792,
333 13806, 13824, 13840, 13841, 13844, 13846, 13848, 13851, 13852, 13854,
334 13871, 13872, 13873, 13879, 13882, 13883, 13884, 13885, 13886, 13892,
335 13895, 13908, 13910, 13911, 13912, 13913, 13914, 13915, 13916, 13917,
336 13918, 13919, 13920, 13921, 13922, 13923, 13924, 13926, 13927, 13928,
337 13938, 13941, 13942, 13954, 13955, 13956, 13963, 13967, 13968, 13970,
338 13973, 13979, 13983, 13986, 13996, 14012, 14027, 14033, 14034, 14036,
339 14040, 14043, 14044, 14048, 14049, 14050, 14053, 14055, 14059, 14064,
340 14075, 14080, 14083, 14103, 14104, 14109, 14112, 14117, 14122, 14123,
341 14134, 14153, 14183, 14188, 14199, 14210, 14218, 14229, 14241, 14273,
342 14277, 14278.
344 * Support for the x32 ABI on x86-64 added. The x32 target is selected by
345 configuring glibc with:
346 BUILD_CC='gcc' CC='gcc -mx32' CXX='g++ -mx32'
347 Visit <http://sites.google.com/site/x32abi/> for more x32 ABI info.
348 Implemented by H.J. Lu.
350 * ISO C11 support:
352 + define static_assert
354 + do not declare gets
356 + declare at_quick_exit and quick_exit also for ISO C11
358 + aligned_alloc. NB: The code is deliberately allows the size parameter
359 to not be a multiple of the alignment. This is a moronic requirement
360 in the standard but it is only a requirement on the caller, not the
361 implementation.
363 + timespec_get added
365 + uchar.h support added
367 + CMPLX, CMPLXF, CMPLXL added
369 Implemented by Ulrich Drepper.
371 * Support for the IA-64 has been moved to ports.
373 * Remove support for anything but ELF binary format
375 * Checking versions of poll, ppoll added.
376 Implemented by Ulrich Drepper.
378 * More generic and 64-bit performance optimizations to math functions.
379 Implemented by Ulrich Drepper.
381 * New configure option --enable-obsolete-rpc makes the deprecated RPC
382 headers and functions available at compile time as they were before
383 version 2.14. This option will be removed at some time in the future
384 after the TI-RPC library becomes fully sufficient for the needs of
385 existing applications.
387 * Compatibility code for Linux kernel versions before 2.4 has been removed.
388 Note that glibc is not expected to work with any Linux kernel version
389 before 2.6.
391 * New header <sys/auxv.h> and function getauxval allowing easy access to
392 the AT_* key-value pairs passed from the Linux kernel. The header also
393 defines the HWCAP_* bits associated with the AT_HWCAP key.
395 * New locales: mag_IN
397 * New configure option --enable-systemtap builds SystemTap static probes
398 into libc for setjmp and longjmp and into libpthread for various operations.
399 So far the setjmp/longjmp probes and some of the libpthread probes are
400 provided only for i*86 and x86_64.
401 Implemented by Roland McGrath and Rayson Ho.
403 * Optimized expf for x86-32 and x86-64. Implemented by Liubov Dmitrieva.
405 * More optimized functions for PowerPC. Implemented by Adhemerval Zanella
406 and Will Schmidt.
408 * More optimized functions for SPARC. Implemented by David S. Miller.
410 * Improved support for cross-compilation, especially bootstrap builds
411 without a previously built glibc.
413 * Ports for the TILE-Gx and TILEPro families of processors. Contributed by
414 Chris Metcalf from Tilera.
416 * Support for the old ARM ABI has been removed from ports. Only the EABI is
417 now supported for ARM processors.
419 * The hard-float variant of the ARM EABI now uses /lib/ld-linux-armhf.so.3
420 as the name of the dynamic linker, to distinguish it from the
421 /lib/ld-linux.so.3 dynamic linker used for the base EABI.
423 * Support for CRIS has been removed from ports.
425 * A new class of installed header has been documented for low-level
426 platform-specific functionality. PowerPC added the first instance with a
427 function to provide time base register access. Contributed by Tulio
428 Magno Quites Machado Filho.
430 * ix86 configurations now install header files that are consistent with
431 what x86-64 configurations install. These same header files can be used
432 for -m32, -m64, or -mx32 builds.
433 Contributed by H.J. Lu.
435 * Math library bug fixes. A thorough audit of all open math library bugs was
436 conducted by Joseph Myers. Significant progress was made on many math
437 library bugs resulting in more accurate exceptions and function results.
438 Many thanks to all those that contributed including Andreas Jaeger for his
439 patch review and work on the x87 trigonometric instruction issues.
441 * Timezone data is no longer installed. Timezone-related binaries and scripts
442 will continue to be installed. Users should obtain their timezone data from
443 their distribution provider or from the tzdata package at
444 <ftp://munnari.oz.au/pub/>.
445 \f
446 Version 2.15
448 * The following bugs are resolved with this release:
450 6779, 6783, 9696, 10103, 10709, 11589, 11929, 12403, 12786, 12840, 12847,
451 12868, 12852, 12874, 12885, 12892, 12906, 12907, 12922, 12935, 12962,
452 13007, 13021, 13061, 13062, 13067, 13068, 13085, 13088, 13090, 13092,
453 13096, 13114, 13118, 13123, 13134, 13138, 13147, 13150, 13166, 13179,
454 13185, 13189, 13192, 13268, 13276, 13282, 13291, 13305, 13328, 13335,
455 13337, 13344, 13358, 13367, 13413, 13416, 13423, 13439, 13446, 13472,
456 13484, 13506, 13515, 13523, 13524, 13538, 13540
458 * New program pldd to list loaded object of a process
459 Implemented by Ulrich Drepper.
461 * Add nss_db support back to glibc. No more dependency on Berkeley db
462 and support for initgroups lookups.
463 Implemented by Ulrich Drepper.
465 * Optimized strcpy, strncpy, stpcpy, stpncpy for SSE2 and SSSE3 on x86-32.
466 Contributed by HJ Lu.
468 * Improved strcpy, strncpy, stpcpy, stpncpy for SSE2 and SSSE3 on x86-64.
469 Contributed by HJ Lu.
471 * Optimized strcat, strncat on x86-64 and optimized wcscmp, wcslen, strnlen
472 on x86-32 and x86-64.
473 Contributed by Liubov Dmitrieva.
475 * Optimized strchr and strrchr for SSE on x86-32.
476 Contributed by Liubov Dmitrieva.
478 * Optimized memchr, memrchr, rawmemchr, memcmp, wmemcmp, wcschr, wcscpy
479 for x86-64 and x86-32.
480 Contributed by Liubov Dmitrieva.
482 * New interfaces: scandirat, scandirat64
483 Implemented by Ulrich Drepper.
485 * Checking versions of FD_SET, FD_CLR, and FD_ISSET added.
486 Implemented by Ulrich Drepper.
488 * nscd now also caches the netgroup database.
489 Implemented by Ulrich Drepper.
491 * Integrate libm with gcc's -ffinite-math-only option.
492 Implemented by Ulrich Drepper.
494 * Lots of generic, 64-bit, and x86-64-specific performance optimizations
495 to math functions. Implemented by Ulrich Drepper.
497 * Optimized strcasecmp and strncasecmp for AVX on x86-64.
498 Implemented by Ulrich Drepper.
500 * New Linux interfaces: process_vm_readv, process_vm_writev
502 * Optimized strcasecmp and strncasecmp for SSSE3 and SSE4.2 on x86-32.
503 Implemented by Ulrich Drepper.
505 * Optimized nearbyint and strcasecmp for PPC.
506 Implemented by Adhemerval Zanella.
508 * New locales: bho_IN, unm_US, es_CU, ta_LK
509 \f
510 Version 2.14
512 * The following bugs are resolved with this release:
514 386, 6420, 7101, 9730, 9732, 9809, 10138, 10149, 10157, 11099, 11257,
515 11258, 11487, 11532, 11558, 11578, 11634, 11653, 11668, 11697, 11724,
516 11781, 11799, 11820, 11837, 11857, 11869, 11892, 11895, 11901, 11945,
517 11947, 11952, 11987, 12052, 12083, 12158, 12178, 12200, 12346, 12350,
518 12393, 12420, 12432, 12445, 12449, 12453, 12454, 12460, 12469, 12489,
519 12509, 12510, 12511, 12518, 12527, 12541, 12545, 12551, 12582, 12583,
520 12587, 12597, 12601, 12611, 12625, 12626, 12631, 12650, 12653, 12655,
521 12660, 12671, 12681, 12684, 12685, 12711, 12713, 12714, 12717, 12723,
522 12724, 12734, 12738, 12746, 12766, 12775, 12777, 12782, 12788, 12792,
523 12795, 12811, 12813, 12814, 12841
525 * The RPC implementation in libc is obsoleted. Old programs keep working
526 but new programs cannot be linked with the routines in libc anymore.
527 Programs in need of RPC functionality must be linked against TI-RPC.
528 The TI-RPC implementation is IPv6 enabled and there are other benefits.
530 Visible changes of this change include (obviously) the inability to link
531 programs using RPC functions without referencing the TI-RPC library and the
532 removal of the RPC headers from the glibc headers.
533 Implemented by Ulrich Drepper.
535 * New Linux interfaces: clock_adjtime, name_to_handle_at, open_by_handle_at,
536 syncfs, setns, sendmmsg
538 * New locales: os_RU, bem_ZA, en_ZA, ff_SN, sw_KE, sw_TZ, lb_LU, wae_CH,
539 yue_HK, lij_IT, mhr_RU
541 * New encodings: CP770, CP771, CP772, CP773, CP774
543 * New program sotruss to trace calls through PLTs
544 Implemented by Ulrich Drepper.
546 * The malloc hook implementation is marked deprecated and will be removed
547 from the default implementation in the next version. The design never
548 worked ever since the introduction of threads. Even programs which do
549 not create threads themselves can use multiple threads created internally.
550 \f
551 Version 2.13
553 * The following bugs are resolved with this release:
555 3268, 6812, 7066, 10085, 10484, 10563, 10851, 11149, 11155, 11577, 11611,
556 11640, 11655, 11701, 11840, 11856, 11883, 11903, 11904, 11968, 11979,
557 12005, 12037, 12067, 12077, 12078, 12092, 12093, 12107, 12108, 12113,
558 12140, 12159, 12167, 12191, 12194, 12201, 12204, 12205, 12207, 12348,
559 12378, 12394, 12397
561 * New Linux interfaces: prlimit, prlimit64, fanotify_init, fanotify_mark
563 * POWER7 optimizations: memset, memcmp, strncmp
565 * New optimized string functions for x86-64: strnlen (SSE2),
566 strcasecmp (SSE2, SSSE3, SSE4.2), strncasecmp (SSE2, SSSE3, SSE4.2)
567 Implemented by Ulrich Drepper.
568 \f
569 Version 2.12
571 * The following bugs are resolved with this release:
573 3662, 4457, 5553, 10162, 10401, 10414, 10554, 10824, 10864, 10915,
574 10918, 10936, 10939, 10958, 10968, 10969, 10972, 10992, 11000, 11001,
575 11007, 11010, 11027, 11039, 11040, 11041, 11043, 11046, 11056, 11070,
576 11093, 11115, 11125, 11126, 11127, 11134, 11141, 11149, 11183, 11184,
577 11185, 11186, 11187, 11188, 11189, 11190, 11191, 11192, 11193, 11194,
578 11200, 11230, 11235, 11242, 11254, 11258, 11271, 11272, 11276, 11279,
579 11287, 11292, 11319, 11332, 11333, 11387, 11389, 11390, 11394, 11397,
580 11410, 11438, 11449, 11470, 11471, 11520, 11537, 11538, 11571
582 * New interfaces: pthread_getname_np, pthread_setname_np
584 * New Linux interface: recvmmsg
586 * STT_GNU_IFUNC implemented for Sparc by David Miller.
588 * The dynamic linker now recognizes supported ABI versions from the
589 EI_ABIVERSION field in the ELF header.
590 Implemented by Ulrich Drepper.
592 * New NIS mode selector ADJUNCT_AS_SHADOW. The passwd.adjunct.byname table
593 will not be used to fill in password fields in the passwd.byname replies.
594 Instead it is used to synthesize the shadow.byname table, should it be
595 missing. This is a useful mode in some installations involving Solaris.
596 Implemented by Ulrich Drepper.
598 * New locales: kok_IN, sq_MK, cv_RU
599 \f
600 Version 2.11
602 * The following bugs are resolved with this release:
604 3270, 7094, 9924, 9986, 10011, 10085, 10107, 10159, 10162, 10166, 10183,
605 10195, 10196, 10200, 10203, 10207, 10211, 10213, 10217, 10221, 10229,
606 10262, 10286, 10312, 10315, 10319, 10349, 10360, 10391, 10402, 10416,
607 10418, 10422, 10425, 10446, 10448, 10452, 10540, 10553, 10560, 10564,
608 10609, 10643, 10692, 10713, 10717, 10730, 10731, 10742, 10780, 10784,
609 10789, 10817, 10823, 10840, 10847
611 * New interfaces: execvpe, pthread_sigqueue, mkstemps, mkstemps64, mkostemps,
612 mkostemps64
613 Implemented by Ulrich Drepper.
615 * Checking version of longjmp added that fails if an uninitialized stack
616 frame would be created. Implemented by Ulrich Drepper.
618 * STT_GNU_IFUNC is now supported in static executables.
619 Implemented by H.J. Lu.
621 * STT_GNU_IFUNC implemented for PPC by Alan Modra.
623 * New optimized string functions for x86-64: strstr, strcasestr, memcmp,
624 strcspn, strpbrk, strspn, strcpy, stpcpy, strncpy, strcmp (SSE2, SSE4.2),
625 strncmp (SSE2, SSE4.2), strchr (SSE4.2), strrchr (SSE4.2).
626 Contributed by H.J. Lu.
628 strlen, rawmemchr, strcmp (SSSE3), strncmp (SSSE3).
629 Implemented by Ulrich Drepper.
631 * New optimized string functions for x86: strlen, strcspn, strspn, strpbrk,
632 strstr, strcasestr.
633 Contributed by H.J. Lu.
635 * Support for fma instruction in AVX on x86-64.
636 Implemented by H.J. Lu and Ulrich Drepper.
638 * AVX support in x86-64 auditing support in ld.so.
639 Implemented by H.J. Lu.
641 * STB_GNU_UNIQUE support added.
642 Implemented by Ulrich Drepper.
644 * Implement second fallback mode for optimized DNS lookup for even more
645 broken environments. If two requests from the same port are not
646 handled correctly close the socket and open a new one before sending
647 the second request. The 'single-request-reopen' option in /etc/resolv.conf
648 can be used to select this mode right away, instead of rediscovering the
649 necessity is every process again.
650 Implemented by Ulrich Drepper.
652 * New resolver flag RES_USE_DNSSEC to enable use of verified lookup.
653 Implemented by Adam Tkac.
655 * Optimized iconv conversions for S390x.
656 Implemented by Andreas Krebbel.
658 * Using condvars with PI mutexes is now more efficient due to kernel
659 support for requeueing to PI futexes. NPTL support added for x86-64.
660 Implemented by Ulrich Drepper.
662 * New locales: ps_AF, my_MM
663 \f
664 Version 2.10
666 * The following bugs are resolved with this release:
668 697, 5381, 5807, 6411, 6545, 7040, 7058, 7067, 7080, 7083, 7095, 7098,
669 9677, 9694, 9697, 9701, 9704, 9705, 9706, 9720, 9726, 9730, 9733, 9736,
670 9741, 9750, 9753, 9759, 9781, 9791, 9793, 9823, 9833, 9844, 9880, 9881,
671 9891, 9893, 9895, 9913, 9916, 9920, 9948, 9955, 9957, 9963, 9985, 10052,
672 10069, 10086, 10087, 10090, 10092, 10093, 10100, 10118, 10128
674 * New interfaces: preadv, preadv64, pwritev, pwritev64, malloc_info
675 Implemented by Ulrich Drepper.
677 * New Linux interfaces: accept4, fallocate, fallocate64.
678 Implemented by Ulrich Drepper.
680 * Correct declarations of string function when used in C++ code. This
681 could lead to compile errors for invalid C++ code.
683 * XPG7/POSIX 2008 compilation environment. Many GNU-specific functions are
684 now in POSIX.
686 * New POSIX 2008 interface: psiginfo
687 Implemented by Ulrich Drepper.
689 * New ISO C++1x interfaces: quick_exit, at_quick_exit
690 Implemented by Ulrich Drepper.
692 * Support for selecting between multiple function definitions at runtime
693 using STT_GNU_IFUNC symbols. Implemented by Ulrich Drepper.
695 * The libcrypt library can now use the hash function implementations in
696 NSS. Implemented by Ulrich Drepper.
698 * The malloc implementation can be compiled to be less memory efficient
699 but higher performing in multi-threaded programs.
700 Implemented by Ulrich Drepper.
702 * New locales: nan_TW@latin, ks_IN
704 * Faster strlen, strchr, strchrnul, strrchr, memchr, and rawmemchr for x86-64.
705 Implemented by Ulrich Drepper.
707 * Extended printf hook support. It is possible to use user-defined types
708 and extend existing format specifiers.
709 Implemented by Ulrich Drepper.
711 * Handling for group shadow files has been added.
712 Implemented by Ulrich Drepper.
714 * DNS IPv4-IPv6 parallel lookup now deals better with broken DNS
715 servers (the case, e.g., for some people using the built-in DNS
716 server in ADSL modems/routers). There is a once-per-process timeout
717 in case of a broken server. To avoid it, users can run nscd or put
718 'options single-request' in /etc/resolv.conf.
719 Implemented by Ulrich Drepper.
720 \f
721 Version 2.9
723 * The following bugs are resolved with this release:
725 3406, 5209, 5210, 5381, 5794, 5814, 5911, 6428, 6438, 6442, 6447, 6461,
726 6472, 6505, 6544, 6589, 6612, 6634, 6653, 6654, 6657, 6698, 6712, 6713,
727 6719, 6723, 6724, 6740, 6763, 6771, 6790, 6791, 6817, 6824, 6839, 6843,
728 6845, 6856, 6857, 6860, 6867, 6875, 6919, 6920, 6942, 6947, 6955, 6966,
729 6968, 6974, 6980, 6995, 7008, 7009, 7029
731 * Unified lookup for getaddrinfo: IPv4 and IPv6 addresses are now looked
732 up at the same time. Implemented by Ulrich Drepper.
734 * TLS descriptors for LD and GD on x86 and x86-64.
735 Implemented by Alexandre Oliva.
737 * getaddrinfo now handles DCCP and UDPlite.
738 Implemented by Ulrich Drepper.
740 * New fixed-size conversion macros: htobe16, htole16, be16toh, le16toh,
741 htobe32, htole32, be32toh, le32toh, htobe64, htole64, be64toh, le64toh.
742 Implemented by Ulrich Drepper.
744 * New implementation of memmem, strstr, and strcasestr which is O(n).
745 Implemented by Eric Blake.
747 * New Linux interfaces: inotify_init1, dup3, epoll_create1, pipe2
749 * Implement "e" option for popen to open file descriptor with the
750 close-on-exec flag set. Implemented by Ulrich Drepper.
752 * Implement "b" mode for fmemopen. In this mode writes writes don't
753 implicitly add a NUL byte and seeks from the end of the buffer really
754 use the buffer end, not the string length as the basis.
755 Implemented by Ulrich Drepper.
757 * Many functions, exported and internal, now atomically set the close-on-exec
758 flag when run on a sufficiently new kernel. Implemented by Ulrich Drepper.
760 * Sorting rules for some Indian languages (Kannada, Gurumukhi, Telugu,
761 Sinhala)
762 Implemented by Pravin Satpute.
764 * New locales: sd_IN, sd_IN@devanagari, ks_IN@devanagari, ht_HT, en_AG, nl_AW.
765 \f
766 Version 2.8
768 * The following bugs are resolved with this release:
770 2549, 3112, 4314, 4407, 4997, 5012, 5040, 5112, 5204, 5208, 5209, 5220,
771 5222, 5224, 5225, 5237, 5238, 5240, 5245, 5277, 5346, 5375, 5378, 5382,
772 5424, 5427, 5428, 5435, 5436, 5439, 5441, 5442, 5443, 5451, 5452, 5454,
773 5455, 5463, 5464, 5465, 5475, 5477, 5478, 5520, 5541, 5545, 5553, 5600,
774 5602, 5607, 5614, 5627, 5628, 5736, 5737, 5741, 5753, 5760, 5762, 5768,
775 5774, 5777, 5778, 5779, 5786, 5790, 5818, 5854, 5857, 5903, 5939, 5979,
776 5983, 5995, 5998, 6004, 6007, 6020, 6021, 6024, 6040, 6042
778 * New locales: bo_CN, bo_IN, shs_CA.
780 * New encoding: HP-ROMAN9, HP-GREEK8, HP-THAI8, HP-TURKISH8.
782 * Sorting rules for some Indian languages (Devanagari and Gujarati).
783 Implemented by Pravin Satpute.
785 * IPV6 addresses in /etc/resolv.conf can now have a scope ID
787 * nscd caches now all timeouts for DNS entries
788 Implemented by Ulrich Drepper.
790 * nscd is more efficient and wakes up less often.
791 Implemented by Ulrich Drepper.
793 * More checking functions: asprintf, dprintf, obstack_printf, vasprintf,
794 vdprintf, and obstack_vprintf.
795 Implemented by Jakub Jelinek.
797 * Faster memset for x86-64.
798 Implemented by Harsha Jagasia and H.J. Lu.
800 * Faster memcpy on x86.
801 Implemented by Ulrich Drepper.
803 * ARG_MAX is not anymore constant on Linux. Use sysconf(_SC_ARG_MAX).
804 Implemented by Ulrich Drepper.
806 * Faster sqrt and sqrtf implemention for some PPC variants.
807 Implemented by Steven Munroe.
808 \f
809 Version 2.7
811 * The following bugs are resolved with this release:
813 4125, 4126, 4178, 4359, 4407, 4512, 4514, 4525, 4554, 4556, 4557, 4566,
814 4582, 4586, 4588, 4599, 4610, 4647, 4702, 4705, 4726, 4745, 4772, 4773,
815 4775, 4776, 4792, 4813, 4814, 4816, 4833, 4858, 4860, 4896, 4905, 4925,
816 4936, 4937, 4938, 4941, 4946, 4963, 4972, 5010, 5028, 5043, 5058, 5063,
817 5071, 5103, 5104, 5112, 5113, 5184, 5186
819 * More checking functions: fread, fread_unlocked, open*, mq_open.
820 Implemented by Jakub Jelinek and Ulrich Drepper.
822 * Extend fortification to C++. Implemented by Jakub Jelinek.
824 * Implement 'm' modifier for scanf. Add stricter C99/SUS compliance
825 by not recognizing 'a' as a modifier when those specs are requested.
826 Implemented by Jakub Jelinek.
828 * PPC optimizations to math and string functions.
829 Implemented by Steven Munroe.
831 * New interfaces: mkostemp, mkostemp64. Like mkstemp* but allow additional
832 options to be passed. Implemented by Ulrich Drepper.
834 * More CPU set manipulation functions. Implemented by Ulrich Drepper.
836 * New Linux interfaces: signalfd, eventfd, eventfd_read, and eventfd_write.
837 Implemented by Ulrich Drepper.
839 * Handle private futexes in the NPTL implementation.
840 Implemented by Jakub Jelinek and Ulrich Drepper.
842 * Add support for O_CLOEXEC. Implement in Hurd. Use throughout libc.
843 Implemented by Roland McGrath and Ulrich Drepper.
845 * Linux/x86-64 vDSO support. Implemented by Ulrich Drepper.
847 * SHA-256 and SHA-512 based password encryption.
848 Implemented by Ulrich Drepper.
850 * New locales: ber_DZ, ber_MA, en_NG, fil_PH, fur_IT, fy_DE, ha_NG, ig_NG,
851 ik_CA, iu_CA, li_BE, li_NL, nds_DE, nds_NL, pap_AN, sc_IT, tk_TM, ug_CN,
852 yo_NG.
854 + New iconv modules: MAC-CENTRALEUROPE, ISO-8859-9E, KOI8-RU.
855 Implemented by Ulrich Drepper.
856 \f
857 Version 2.6
859 * The following bugs are resolved with this release:
861 3156, 3213, 3285, 3291, 3306, 3313, 3320, 3322, 3325, 3326, 3334, 3348,
862 3352, 3363, 3369, 3426, 3427, 3429, 3451, 3458, 3465, 3480, 3483, 3493,
863 3514, 3515, 3559, 3632, 3664, 3673, 3674, 3745, 3747, 3818, 3840, 3842,
864 3851, 3855, 3884, 3885, 3902, 3905, 3919, 3944, 3954, 3955, 3957, 3991,
865 3995, 3996, 4024, 4040, 4069, 4070, 4074, 4076, 4096, 4101, 4102, 4114,
866 4130, 4131, 4181, 4276, 4306, 4342, 4344, 4349, 4364, 4368, 4381, 4392,
867 4403, 4405, 4406, 4411, 4438, 4439, 4455, 4456, 4465, 4512, 4514, 4586,
868 4702, 4858
870 * New Linux interfaces: epoll_pwait, sched_getcpu.
872 * New generic interfaces: strerror_l.
874 * nscd can now cache the services database. Implemented by Ulrich Drepper.
875 \f
876 Version 2.5
878 * The following bugs are resolved with this release:
880 39, 68, 192, 352, 388, 531, 935, 1006, 1201, 1203, 1386, 1782, 1783, 1784,
881 1785, 1786, 1787, 1951, 1974, 1996, 2072, 2098, 2125, 2134, 2158, 2182,
882 2349, 2376, 2386, 2389, 2415, 2418, 2420, 2423, 2450, 2451, 2466, 2472,
883 2473, 2477, 2498, 2499, 2501, 2502, 2505, 2507, 2508, 2509, 2517, 2526,
884 2569, 2571, 2592, 2611, 2625, 2632, 2644, 2662, 2680, 2683, 2684, 2693,
885 2695, 2703, 2734, 2751, 2764, 2766, 2775, 2792, 2821, 2823, 2832, 2841,
886 2843, 2883, 2892, 2908, 2914, 2926, 2961, 2978, 2980, 2987, 2997, 2998,
887 3013, 3018, 3034, 3040, 3044, 3123, 3124, 3137, 3138, 3143, 3155, 3189,
888 3225, 3251, 3252, 3253, 3273
890 * For Linux, the sorting of addresses returned by getaddrinfo now also
891 handles rules 3, 4, and 7 from RFC 3484. I.e., all rules are handled.
892 Implemented by Ulrich Drepper.
894 * Allow system admin to configure getaddrinfo with the /etc/gai.conf file.
895 Implemented by Ulrich Drepper.
897 * New Linux interfaces: splice, tee, sync_file_range, vmsplice.
899 * New iconv module for MIK. Contributed by Alexander Shopov.
901 * For sites with broken group and/or passwd database, the auto-propagate
902 option of nscd can prevent creating ID lookup entries from the results
903 of a name lookup and vice versa. This usually is no problem but some
904 site might have problems with the default behavior.
905 Implemented by Ulrich Drepper.
907 * Iterating over entire database in NIS can be slow. With the
908 SETENT_BATCH_READ option in /etc/default/nss a system admin can decide
909 to trade time for memory. The entire database will be read at once.
910 Implemented by Ulrich Drepper.
912 * The interfaces introduced in RFC 3542 have been implemented by
913 Ulrich Drepper.
915 * Support for the new ELF hash table format was added by Ulrich Drepper.
917 * Support for priority inheritance mutexes added by Jakub Jelinek and
918 Ulrich Drepper.
920 * Support for priority protected mutexes added by Jakub Jelinek.
922 * New locales: nr_ZA, pa_PK, ca_AD, ca_FR, ca_IT, el_CY, tr_CY, as_IN,
923 or_IN, csb_PL, fy_NL, sr_ME.
924 \f
925 Version 2.4
927 * More overflow detection functions.
929 * New iconv converters for IBM1025, IBM1122, IBM1137, IBM1153,
930 IBM1154, IBM1155, IBM1156, IBM1157, and IBM1158 contributed by Jiro Sekiba.
932 More converters for IBM803, IBM901, IBM902, IBM921, IBM1008, IBM1097,
933 IBM1112, IBM1123, IBM1130, IBM1140, IBM1141, IBM1142, IBM1143, IBM1144,
934 IBM1145, IBM1146, IBM1147, IBM1148, IBM1149, IBM1166, IBM1167, IBM4517,
935 IBM4899, IBM4909, IBM4971, IBM5347, IBM9030, IBM9066, IBM9448, IBM12712,
936 IBM16804, IBM1364, IBM1371, IBM1388, IBM1390, and IBM1399 contributed
937 by Masahide Washizawa.
939 * It is now possible to install audit libraries for the dynamic linker using
940 LD_AUDIT. Implemented by Ulrich Drepper.
942 * The LinuxThreads add-on, providing pthreads on Linux 2.4 kernels, is no
943 longer supported. The new NPTL implementation requires Linux 2.6 kernels.
944 For a libc and libpthread that works well on Linux 2.4 kernels, we
945 recommend using the stable 2.3 branch.
947 * The new function open_wmemstream acts like open_memstream,
948 but uses a wchar_t wide character buffer.
950 * The new function ppoll is an improved version of poll, similar to pselect.
952 * New interfaces: fdopendir, openat, fstatat, fchmodat, fchownat,
953 futimesat, faccessat, mkdirat, mkfifoat, mknodat,
954 renameat, unlinkat, linkat, symlinkat, readlinkat.
956 * New Linux kernel system calls: unshare,
957 inotify_init, inotify_add_watch, inotify_rm_watch.
959 * The euidaccess function is now also known by the alias eaccess,
960 for compatibility with some other systems.
962 * Timezone data updated to 2006b version.
963 \f
964 Version 2.3.6
966 * The following bugs are resolved with this release:
968 38, 253, 549, 622, 653, 721, 758, 851, 877, 915, 934, 955, 961,
969 1016, 1037, 1076, 1079, 1080, 1081, 1082, 1083, 1084, 1085, 1086,
970 1087, 1088, 1090, 1091, 1092, 1093, 1094, 1095, 1096, 1097, 1098,
971 1099, 1100, 1101, 1102, 1103, 1104, 1105, 1106, 1107, 1108, 1109,
972 1110, 1111, 1112, 1113, 1125, 1137, 1138, 1249, 1250, 1251, 1252,
973 1253, 1254, 1350, 1358, 1394, 1438, 1498, 1534
975 Visit <http://sources.redhat.com/bugzilla/> for the details of each bug.
977 * As of this release, GCC 4 can be used to compile the C Library.
979 * Timezone data updated to 2005m version.
980 \f
981 Version 2.3.5
983 * The following bugs are resolved with this release:
985 284, 592, 602, 626, 633, 640, 650, 661, 671, 681, 693, 700, 710, 719,
986 722, 723, 725, 726, 727, 728, 729, 730, 731, 732, 733, 734, 735, 736,
987 737, 738, 739, 740, 741, 742, 743, 744, 745, 765, 767, 768, 769, 776,
988 777, 787, 821, 822, 823, 825
990 Visit <http://sources.redhat.com/bugzilla/> for the details of each bug.
991 \f
992 Version 2.3.4
994 * Support for RFC 3678. Real implementations exist only for Linux so far.
995 Implemented by Ulrich Drepper.
997 * nscd can now cache entries persistently. Expiring entries are reloaded.
998 For speedups the cache can be shared in memory with client processes.
999 Implemented by Ulrich Drepper.
1001 * nscd can now perform SELinux checks.
1002 Implemented by Matthew Rickard <mjricka@epoch.ncsc.mil>.
1004 * getaddrinfo queries are now cached. Canonical name lookup is performed
1005 efficiently.
1006 Implemented by Ulrich Drepper.
1008 * The nothrow function attribute is used when headers are used by gcc when
1009 compiling C code. This can avoid significant amounts of exception
1010 handling data.
1012 * The malloc functions perform more error checking and are stricter when
1013 it comes to reacting on errors. The default action is to terminate
1014 the process after showing an error message. Implemented by Ulrich Drepper.
1016 * Reverse lookups of IPv6 addresses does not use bit string or .ip6.int
1017 lookups anymore unless explicitly requested. Implemented by Ulrich Drepper.
1019 * Namespaces in ld.so are implemented. DSOs can be loaded in separate
1020 namespaces using the new function dlmopen(). This feature is of course,
1021 like most other dynamic loading functionality, not available in statically
1022 linked applications. Implemented by Ulrich Drepper.
1024 * Low-overhead boundary checking variants of string and some stdio functions
1025 were added. These are to be used in conjunction with a gcc patch by
1026 Jakub Jelinek which adds calls to these functions if possible.
1027 Implemented by Jakub Jelinek and Ulrich Drepper.
1029 * Old code for several operating systems and machine architectures that
1030 have not been in working condition in a long time have been removed from
1031 the main source tree maintained by the GNU C Library's maintainers.
1032 These files are now reside in the separate `ports' source module
1033 that is usable as an add-on when building the library.
1034 \f
1035 Version 2.3.3
1037 * New functions `dladdr1' and `dlinfo' in <dlfcn.h> provide more ways to
1038 interrogate the dynamic linker, compatible with the Solaris interface.
1040 * ELF thread-local storage support (TLS) now works on PowerPC and PowerPC64;
1041 implemented by Paul Mackerras, Steven Munroe, and Roland McGrath.
1043 * getifaddrs now uses the netlink interface on Linux to get its information.
1044 Implemented by Thorsten Kukuk.
1046 * getaddrinfo now implements AI_V4MAPPED, AI_ALL, and AI_ADDRCONF.
1047 Implemented by Ulrich Drepper.
1049 * support for non-executable stacks on x86 has been added. Changes mostly
1050 by Roland McGrath.
1052 * regex is now much faster for multibyte locales. Changes by Jakub Jelinek
1053 and Ulrich Drepper.
1055 * getaddrinfo now performs destination address selection according to
1056 RFC 3484.
1057 \f
1058 Version 2.3.2
1060 * Thread-safe interfaces for many functions that access locale data
1061 were added in version 2.3, but these features were omitted from NEWS.
1062 Many functions have variants with an `_l' suffix that take a `locale_t'
1063 object as a parameter rather than consulting the current locale.
1064 The new functions `newlocale', `duplocale', and `freelocale' in <locale.h>
1065 create and maintain `locale_t' objects. Additionally, the new function
1066 `uselocale' sets "the current locale" (as used by functions not so
1067 parameterized) set for an individual thread. These features were added
1068 in version 2.3, implemented by Ulrich Drepper and Roland McGrath.
1070 * The functions getresuid, getresgid, setresuid, and setresgid, which
1071 have long been available on Linux, are now declared in <unistd.h>
1072 and are now also available on the Hurd.
1074 * ELF thread-local storage support (TLS) now works on x86-64.
1076 * The new dynamic string token $LIB is expanded in shared library names.
1077 This normally expands to lib, but on some 64-bit platforms to lib64 instead.
1079 * Aldy Hernandez contributed complete software floating point support for
1080 PowerPC machines with no FPU.
1082 * fexecve is implemented on Linux.
1084 * The `btowc' function should work at least twice as fast due to
1085 specialized callbacks in the iconv modules. Implemented by Bruno Haible.
1087 * With approriate thread add-ons cancelable functions are now implemented
1088 in libc.so as well. No need to call the function in libpthread. This
1089 change allowed to finally disable the incorrect and expensive handling
1090 of weak definition in ld.so.
1092 * Yet more PLT entries in libc.so have been removed. We finally arrived
1093 at the bare minimum. Startup times improved appropriately.
1095 * Support for the new Linux/x86 system call interface was added. The
1096 AT_SYSINFO auxiliary vector entry is recognized and handled.
1097 \f
1098 Version 2.3
1100 * Masahide Washizawa contributed iconv modules for IBM1163 and IBM1164
1101 charsets.
1103 * iconv (the program and the interface) now accepts empty names (excluding
1104 options like //TRANSLIT) to mean "use charset of current locale".
1106 * localedef can now transliterate characters in strings which are not in
1107 the provided charmap. The information from the input locale is used.
1109 * Prelinking support was added for ELF targets. This requires additional
1110 tools and recent versions of the GNU binutils. Contributed by Jakub Jelinek.
1112 * Read-only stdio streams now use mmap to speed up operation by eliminating
1113 copying and buffer underflows. To use add 'm' to the mode string of
1114 the fopen/fdopen/freopen call. Implemented by Ulrich Drepper.
1116 * The malloc functions were completely rewritten by Wolfram Gloger based
1117 on Doug Lea's malloc-2.7.0.c.
1119 * Isamu Hasegawa contributed a completely new and POSIX-conformant
1120 implementation of regex.
1122 * Bruno Haible upgraded the iconv and locale implementation to support
1123 Unicode 3.2.
1125 * Contents of the LC_* and LANG environment variables in the CEN style are
1126 not recognized anymore. It never was used. Change by Ulrich Drepper.
1128 * The runtime (ld.so, libc, libpthread for Linux) now can handle the ELF
1129 thread-local storage (TLS) ABI on some platforms.
1130 Changes by Ulrich Drepper. SH support by Kaz Kojima.
1132 * Bruno Haible contributed iconv converters for ISO-2022-JP-3, SHIFT JIS-X0213,
1133 EUC-JISX0213, and TSCII.
1135 * New header <ifaddrs.h> with functions `getifaddrs' and `freeifaddrs':
1136 BSD-compatible interface for getting all network interface addresses.
1137 Implementation for IPv4 by Roland McGrath.
1139 * Loading of locale data is faster due to the introduction of a locale
1140 archive. Implemented by Roland McGrath and Ulrich Drepper.
1142 * Startup times are significantly reduced by not using exported functions
1143 inside the library itself. Changes by Jakub Jelinek, Roland McGrath,
1144 and Ulrich Drepper.
1146 * Steven Munroe contributed a port to PowerPC64/Linux.
1147 \f
1148 Version 2.2.6
1150 * The Hurd now uses the GNU libio implementation of stdio rather than the
1151 old GNU stdio implementation, and uses a new ABI (libc.so.0.3).
1153 * The Hurd on x86 now has the `ioperm' function and <sys/io.h> header file
1154 with the same behavior as the Linux system call of the same name.
1155 \f
1156 Version 2.2.5
1158 * Stephen Moshier implemented log2, log10, powl and cbrtl for the
1159 128-bit long double format.
1161 * Masahide Washizawa contributed iconv modules for IBM1132, IBM1133, IBM1160,
1162 IBM1161, and IBM1162 charsets.
1164 * Andreas Jaeger contributed a port to x86-64/Linux.
1166 * Peter Bruin contributed a port to PowerPC/Hurd.
1168 * libc functions using I/O streams now can handle wide-oriented streams
1169 as well.
1171 * optimizations in the dynamic linker. Binaries created by recent binutils
1172 versions start up quicker due to reduced time spent on relocations.
1174 * Support for use of gcc3 added by Jakub Jelinek and HJ Lu.
1175 \f
1176 Version 2.2.4
1178 * Stephen Moshier implemented cosh, expm1, log1p, acos, sinh, tanh,
1179 asinh, atanh, j0 for the 128-bit long double format.
1181 * Bruno Haible updated all the code handling Unicode in some form to
1182 support Unicode 3.1.
1184 * Speed of regex for single-byte locales is back to previous levels.
1185 Patch by Isamu Hasegawa.
1187 * Alpha, SPARC, and IA-64 now also using floating stacks.
1189 * Startup time of internationalized applications greatly improved through
1190 iconv cache. Use iconvconfig to generate the cache file.
1191 Contributed by Ulrich Drepper.
1193 * The IA-64 specific part of ld.so was rewritten to eliminate some pretty
1194 severe performance problems. Patch by David Mosberger.
1196 * The Hurd port got a lot more functionality like AIO, various stdio
1197 extensions, etc. Mainly done by Roland McGrath.
1199 * mtrace can now lookup symbols in shared libraries.
1200 \f
1201 Version 2.2.3
1203 * Intel's IA-64 math library is largely integrated. It provides fast and
1204 accurate implementatations for most basic and standard math functions
1205 in float, double, and long double format.
1207 * Stephen Moshier implemented j0, j1, jn, y0, y1, yn, lgamma, erf, erfc,
1208 and asin for the 96-bit long double format and asin, log, tan for the
1209 128-bit long double format.
1211 * The beginning of a last-bit accurate math library by IBM Haifa were added.
1212 The basic double functions exist today. Contributed by Abraham Ziv
1213 <ziv@il.ibm.com>, Moshe Olshansky <olshansk@il.ibm.com>, Ealan Henis
1214 <ealan@il.ibm.com>, and Anna Reitman <reitman@il.ibm.com>.
1216 * An asynchronous name lookup library was added. The interface is designed
1217 after POSIX AIO. The proposal was circulated beforehand to get comments.
1218 No negative ones came in. Implemented by Ulrich Drepper.
1220 * Port to S390/64bit contributed by Martin Schwidefsky
1221 <schwidefsky@de.ibm.com>.
1223 * David Mosberger <davidm@hpl.hp.com> implemented the setcontext family
1224 of functions for Linux/IA-64.
1226 * The RPC code is now thread safe. Threads can now use the same service
1227 of different services at the same time. Patch by Eric Norum
1228 <eric.norum@usask.ca> with some help by Ulrich Drepper.
1230 * Martin Schwidefsky <schwidefsky@de.ibm.com> implemented the setcontext
1231 family of functions for Linux/S390.
1233 * Ulrich Drepper <drepper@redhat.com> implemented the setcontext family
1234 of functions for Linux/x86.
1236 * Port to Linux/CRIS contributed by Axis Communications.
1237 \f
1238 Version 2.2.2
1240 * Lots of headers were cleaned up. Using the tool in the conform/ subdir
1241 we can now check for namespace violations and missing declarations. The
1242 result is that almost all headers are now Unix-compliant (as defined in
1243 the upcoming XPG6). The negative side is that some programs might need
1244 corrections, too, if they depend on the incorrect form of the headers in
1245 previous versions which defined too many symbols and included too many
1246 other headers.
1248 * regex now handles multibyte character sets correctly.
1249 Contributed by Isamu Hasegawa <isamu@yamato.ibm.com>.
1251 * iconv (the program) does now conform to the upcoming XPG6 and handles
1252 charmaps. Instead of the charset names the path of charmaps can be
1253 provided and the conversion happens based on this data.
1254 Contributed by Ulrich Drepper.
1256 * The locale program now provides detailed information about the installed
1257 locales. While
1259 locale -a
1261 only lists the names of the supported locales
1263 locale -a --verbose
1265 provides details such as country, language, and codeset name.
1266 Contributed by Ulrich Drepper.
1267 \f
1268 Version 2.2.1
1270 * The gencat program now parses the input file according to the charset
1271 selected by the LC_CTYPE category. This is important for stateful
1272 character sets. To make generating catalogs easier there is a way
1273 to overwrite the charset selected by the locale: before the first
1274 message or $ quote line the catalog can contain a line like
1276 $ codeset=ISO-8859-2
1278 to select the charset (ISO-8859-2 in this case).
1280 Implemented by Shinya Hanataka and Ulrich Drepper.
1282 * New codeset conversion modules: IBM-922 (Estonia PC codeset),
1283 IBM-1124 (Ukraine PC codeset), IBM-1129 (Vietnamese PC codeset).
1284 Contributed by Masahide Washizawa <washi@jp.ibm.com>.
1286 * Optimized string functions for Alpha ev6 and ev67 by Richard Henderson
1287 <rth@redhat.com> and Rick Gorton <rick.gorton@alpha-processor.com>.
1289 * The LANGUAGE environment variable is now ignored unless the locale is
1290 changed from the default "C" locale.
1292 * The usual bug fixes.
1293 \f
1294 Version 2.2
1296 * Greg McGary added runtime support for bounds checking using gcc's
1297 new -fbounded-pointers option. ix86 target is complete. PowerPC
1298 is in progress.
1300 * Thorsten Kukuk added secure mode support to nscd.
1302 * The Berkeley db libraries have been removed.
1304 Related, the nss_db module is now in a separate package since it
1305 obviously requires a database library being available.
1307 * Wide character I/O streams implemented by Ulrich Drepper.
1309 * Functions from the extended socket API added by Ulrich Drepper.
1311 * Functions feenableexcept and fedisableexcept to control the
1312 behaviour of individual exceptions have been added by Andreas Jaeger.
1314 * ldconfig program added by Andreas Jaeger and Jakub Jelinek.
1316 * The resolver code has been updated from bind 8.2.3-T5B which supports
1317 threads. The integration was done by Andreas Jaeger, Adam D. Bradley,
1318 and Mark Kettenis.
1320 This change could in some situations effect backward compatibility. Since
1321 now `_res' is a thread-local instead of a global variable, modifying it
1322 in one thread does not have any effect in other threads.
1324 The resolver library was also extended to allow IPv6 as the transport
1325 protocol for the requests. This work was done by Stig Venaas.
1327 * Compatibility code for K&R C compilers has been removed from the
1328 header files. A ISO C compiler is needed to use the library
1329 (conforming to either C89 or C99 standard).
1331 * Complete rewrite of the localedef program to support multibyte character
1332 sets. Implement handling of ISO 14651 and ISO 14652. Rewrite strcoll,
1333 strxfrm, wcscoll, and wcsxfrm functions. Make isw*() functions work.
1334 Implemented by Ulrich Drepper.
1336 Bruno Haible significantly improved the generation and use of the data
1337 structures for the wide character tables.
1339 * Plural handling in gettext implemented by Ulrich Drepper.
1341 * The utmp daemon has been removed.
1343 * The port to MIPS-Linux has been finished by Andreas Jaeger.
1345 * A port to Hitachi SH3 and SH4 has been contributed by Kazumoto Kojima
1346 and Yutaka Niibe.
1348 * POSIX clocks and timers implemented by Kaz Kylheku and Ulrich Drepper.
1350 * POSIX barriers implemented by Kaz Kylheku.
1352 * POSIX spawn function family implemented by Ulrich Drepper.
1354 * POSIX spinlocks are now available.
1356 * Timed wait functions for mutex, rwlock, and semaphores are implemented.
1358 * the configure option --enable-kernel=X.Y.Z allows to strip out
1359 compatibility for kernel versions before X.Y.Z. This is currently only
1360 implemented for Linux.
1362 * the sockaddr_in6 structure changed. The IPv6 working group added a new
1363 field sin6_scope_id. This means that all programs using IPv6 should be
1364 recompiled. Don't expect binary compatibility with previous glibc
1365 versions.
1367 * various conversion modules for IBM character sets contributed by
1368 Masahide Washizawa.
1370 * IA-64 port by Jes Sorensen and HJ Lu.
1371 \f
1372 Version 2.1.3
1374 * bug fixes
1376 \f
1377 Version 2.1.2
1379 * bug fixes
1381 \f
1382 Version 2.1.1
1384 * New ISO C 9x function _Exit, imaxabs, and imaxdiv are added.
1386 * New xdr functions are added; some rpc functions are now 64bit clean.
1388 * Fixed a number of bugs and memory leaks (especially in NIS+ code).
1390 * Fixed known incompatibilities with glibc 2.0.
1392 * New functions lock64, strchrnul, rawmemchr, getutmp and getutmpx.
1394 * Optimized a number of functions (especially the ELF dynamic loader).
1396 * Update timezone data files.
1398 * lots of charmaps corrections
1400 * some new locale definitions and charmaps
1402 \f
1403 Version 2.1
1405 * Richard Henderson corrected size of struct timeval on Linux/Alpha to
1406 conform to POSIX member type requirements. Symbol versions have been
1407 adjusted as needed within the library, and for direct use by applications,
1408 but there is potential for problems if third-party libraries use
1409 struct timeval as part of their interface. This does not present
1410 a problem for X and other "essential" system libraries.
1412 * An additional locale model to support C++ Standard Library locale
1413 model and probably more was implemented by Ulrich Drepper.
1415 * Eric Youngdale and Ulrich Drepper implemented versioning of objects on
1416 symbol level.
1418 * Miles Bader provided the `argp' function family to support hierachical
1419 command line argument parsing, layered on top of getopt.
1421 * strtod accepts new hexadecimal floating-point format from ISO C 9X.
1423 * printf has two new specifiers %a and %A to print hexadecimal flaoting-point
1424 numbers.
1426 * scanf recognizes the %a and %A format for scanning floating point numbers.
1428 * the new headers <stdint.h> and <inttypes.h> from ISO C 9X provides
1429 information and interfaces for the available integer types.
1431 * about 130 new math functions were added to implement the ISO C9x math
1432 library.
1434 * the new header <complex.h> contains definitions of the complex math
1435 functions from ISO C 9X.
1437 * the new header <tgmath.h> defines generic macros to use complex or
1438 real valued functions.
1440 * Thorsten Kukuk provided an implementation for NIS+, securelevel 0, 1 and 2.
1442 * Andreas Jaeger provided a test suite for the math library.
1444 * Mark Kettenis implemented the utmpx interface and an utmp daemon.
1446 * Ulrich Drepper added character set conversion functions (iconv).
1448 * Optimized string functions have been added.
1450 * The localedata addon is now part of glibc.
1452 * An implementation of profiling shared libraries was added by Ulrich Drepper.
1454 * Thorsten Kukuk and Ulrich Drepper provided an implementation for a caching
1455 daemon for NSS (nscd).
1457 Missing a better place here are some numbers on improvements. Under
1458 Linux 2.1.125 un-tar-ing the kernel sources takes
1460 user system wall
1462 using local files 12.19s 6.88s 22.91s
1464 using NIS 13.92s 8.91s 26.34s
1466 using NIS & nscd 10.37s 7.34s 25.30s
1468 using NIS+ 27.57s 30.37s 640.46s
1470 using NIS+ & nscd 10.25s 7.83s 26.51s
1472 using NIS & old nscd [1] 13.83s 8.32s 29.60s
1474 Keep in mind that non-namelookup related operations dominate above times.
1475 It was just a common complain that using NIS+ unpacking the kernel is
1476 horribly slow.
1478 [1] The old nscd implementation is not available anymore since it was
1479 distributed with glibc up to version 2.0.98 and thus is now replaced.
1481 * Tim Waugh provided an implementation of the POSIX.2 wordexp function family.
1483 * Mark Kettenis provided a Hesiod NSS module.
1485 * The ELF dynamic loader knows how to process dynamic string tokens ($ORIGIN
1486 and $PLATFORM) in RPATHs and similar strings (Ulrich Drepper).
1488 * rcmd can now handle netgroups (Dick Streefland).
1490 * A port to the ARM was contributed by Phil Blundell, Pat Beirne and Scott
1491 Bambrough.
1493 * Support for the IPv6 protocol has been added to the socket API, as per the
1494 latest draft standards.
1496 * Support for Linux 2.2 has been added.
1498 * Interface changes relative to the latest 2.0.x release:
1499 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1500 addseverity NEW: Unix98
1501 alphasort64 NEW: LFS
1502 argp_err_exit_status NEW: argp, GNU ext
1503 argp_error NEW: argp, GNU ext
1504 argp_failure NEW: argp, GNU ext
1505 argp_help NEW: argp, GNU ext
1506 argp_parse NEW: argp, GNU ext
1507 argp_program_bug_address NEW: argp, GNU ext
1508 argp_program_version NEW: argp, GNU ext
1509 argp_program_version_hook NEW: argp, GNU ext
1510 argp_state_help NEW: argp, GNU ext
1511 argp_usage NEW: argp, GNU ext
1512 authdes_create NEW: Secure RPC
1513 authdes_getucred NEW: Secure RPC
1514 authdes_pk_create NEW: Secure RPC
1515 backtrace NEW: GNU ext.
1516 backtrace_symbols NEW: GNU ext.
1517 backtrace_symbols_fd NEW: GNU ext.
1518 cacos NEW: ISO C 9x
1519 cacosf NEW: ISO C 9x
1520 cacosh NEW: ISO C 9x
1521 cacoshf NEW: ISO C 9x
1522 cacoshl NEW: ISO C 9x
1523 cacosl NEW: ISO C 9x
1524 capget NEW: kernel
1525 capset NEW: kernel
1526 carg NEW: ISO C 9x
1527 cargf NEW: ISO C 9x
1528 cargl NEW: ISO C 9x
1529 casin NEW: ISO C 9x
1530 casinf NEW: ISO C 9x
1531 casinh NEW: ISO C 9x
1532 casinhf NEW: ISO C 9x
1533 casinhl NEW: ISO C 9x
1534 casinl NEW: ISO C 9x
1535 catan NEW: ISO C 9x
1536 catanf NEW: ISO C 9x
1537 catanh NEW: ISO C 9x
1538 catanhf NEW: ISO C 9x
1539 catanhl NEW: ISO C 9x
1540 catanl NEW: ISO C 9x
1541 cbc_crypt NEW: Secure RPC
1542 ccos NEW: ISO C 9x
1543 ccosf NEW: ISO C 9x
1544 ccosh NEW: ISO C 9x
1545 ccoshf NEW: ISO C 9x
1546 ccoshl NEW: ISO C 9x
1547 ccosl NEW: ISO C 9x
1548 cexp NEW: ISO C 9x
1549 cexpf NEW: ISO C 9x
1550 cexpl NEW: ISO C 9x
1551 cimag NEW: ISO C 9x
1552 cimagf NEW: ISO C 9x
1553 cimagl NEW: ISO C 9x
1554 clearerr_locked REMOVED
1555 clntunix_create NEW: sunrpc ext
1556 clog NEW: ISO C 9x
1557 clog10 NEW: ISO C 9x
1558 clog10f NEW: ISO C 9x
1559 clog10l NEW: ISO C 9x
1560 clogf NEW: ISO C 9x
1561 clogl NEW: ISO C 9x
1562 conj NEW: ISO C 9x
1563 conjf NEW: ISO C 9x
1564 conjl NEW: ISO C 9x
1565 cpow NEW: ISO C 9x
1566 cpowf NEW: ISO C 9x
1567 cpowl NEW: ISO C 9x
1568 cproj NEW: ISO C 9x
1569 cprojf NEW: ISO C 9x
1570 cprojl NEW: ISO C 9x
1571 creal NEW: ISO C 9x
1572 crealf NEW: ISO C 9x
1573 creall NEW: ISO C 9x
1574 creat64 NEW: LFS
1575 csin NEW: ISO C 9x
1576 csinf NEW: ISO C 9x
1577 csinh NEW: ISO C 9x
1578 csinhf NEW: ISO C 9x
1579 csinhl NEW: ISO C 9x
1580 csinl NEW: ISO C 9x
1581 csqrt NEW: ISO C 9x
1582 csqrtf NEW: ISO C 9x
1583 csqrtl NEW: ISO C 9x
1584 ctan NEW: ISO C 9x
1585 ctanf NEW: ISO C 9x
1586 ctanh NEW: ISO C 9x
1587 ctanhf NEW: ISO C 9x
1588 ctanhl NEW: ISO C 9x
1589 ctanl NEW: ISO C 9x
1590 des_setparity NEW: Secure RPC
1591 ecb_crypt NEW: Secure RPC
1592 endutxent NEW: Unix98
1593 exp10 NEW: ISO C 9x
1594 exp10f NEW: ISO C 9x
1595 exp10l NEW: ISO C 9x
1596 exp2 NEW: ISO C 9x
1597 exp2f NEW: ISO C 9x
1598 exp2l NEW: ISO C 9x
1599 fattach NEW: STREAMS
1600 fdetach NEW: STREAMS
1601 fdim NEW: ISO C 9x
1602 fdimf NEW: ISO C 9x
1603 fdiml NEW: ISO C 9x
1604 feclearexcept NEW: ISO C 9x
1605 fegetenv NEW: ISO C 9x
1606 fegetexceptflag NEW: ISO C 9x
1607 fegetround NEW: ISO C 9x
1608 feholdexcept NEW: ISO C 9x
1609 feof_locked REMOVED
1610 feraiseexcept NEW: ISO C 9x
1611 ferror_locked REMOVED
1612 fesetenv NEW: ISO C 9x
1613 fesetexceptflag NEW: ISO C 9x
1614 fesetround NEW: ISO C 9x
1615 fetestexcept NEW: ISO C 9x
1616 feupdateenv NEW: ISO C 9x
1617 fflush_locked REMOVED
1618 ffsl NEW: GNU ext.
1619 ffsll NEW: GNU ext.
1620 fgetpos64 NEW: LFS
1621 fgets_unlocked NEW: GNU ext.
1622 fileno_locked REMOVED
1623 fma NEW: ISO C 9x
1624 fmaf NEW: ISO C 9x
1625 fmal NEW: ISO C 9x
1626 fmax NEW: ISO C 9x
1627 fmaxf NEW: ISO C 9x
1628 fmaxl NEW: ISO C 9x
1629 fmin NEW: ISO C 9x
1630 fminf NEW: ISO C 9x
1631 fminl NEW: ISO C 9x
1632 fmtmsg NEW: Unix98
1633 fopen64 NEW: LFS
1634 fputc_locked REMOVED
1635 fputs_unlocked NEW: GNU ext.
1636 fread_unlocked NEW: GNU ext.
1637 freopen64 NEW: LFS
1638 fseeko NEW: Unix98
1639 fsetpos64 NEW: LFS
1640 fstatfs64 NEW: LFS
1641 fstatvfs NEW: Unix98
1642 fstatvfs64 NEW: LFS
1643 ftello NEW: Unix98
1644 ftello64 NEW: LFS
1645 ftruncate64 NEW: LFS
1646 ftw64 NEW: LFS
1647 fwrite_unlocked NEW: GNU ext.
1648 gai_strerror NEW: IPv6
1649 gamma_r REMOVED
1650 gammaf_r REMOVED
1651 gammal_r REMOVED
1652 getchar_locked REMOVED
1653 getdate NEW: Unix98
1654 getdate_err NEW: Unix98
1655 getdate_r NEW: GNU ext.
1656 getmsg NEW: STREAMS
1657 getnameinfo NEW: IPv6
1658 getnetname NEW: Secure RPC
1659 getpmsg NEW: STREAMS
1660 getpt NEW: Unix98 PTY
1661 getrlimit64 NEW: LFS
1662 getutxent NEW: Unix98
1663 getutxid NEW: Unix98
1664 getutxline NEW: Unix98
1665 glob64 NEW: GNU ext.
1666 globfree64 NEW: GNU ext.
1667 gnu_get_libc_release NEW: GNU ext.
1668 gnu_get_libc_version NEW: GNU ext.
1669 grantpt NEW: Unix98 PTY
1670 host2netname NEW: Secure RPC
1671 iconv NEW: iconv
1672 iconv_close NEW: iconv
1673 iconv_open NEW: iconv
1674 if_freenameindex NEW: IPv6
1675 if_indextoname NEW: IPv6
1676 if_nameindex NEW: IPv6
1677 if_nametoindex NEW: IPv6
1678 in6addr_any NEW: IPv6
1679 in6addr_loopback NEW: IPv6
1680 inet6_isipv4mapped NEW: IPv6
1681 isastream NEW: STREAMS
1682 iswblank NEW: GNU ext.
1683 key_decryptsession NEW: Secure RPC
1684 key_decryptsession_pk NEW: Secure RPC
1685 key_encryptsession NEW: Secure RPC
1686 key_encryptsession_pk NEW: Secure RPC
1687 key_gendes NEW: Secure RPC
1688 key_get_conv NEW: Secure RPC
1689 key_secretkey_is_set NEW: Secure RPC
1690 key_setnet NEW: Secure RPC
1691 key_setsecret NEW: Secure RPC
1692 llrint NEW: ISO C 9x
1693 llrintf NEW: ISO C 9x
1694 llrintl NEW: ISO C 9x
1695 llround NEW: ISO C 9x
1696 llroundf NEW: ISO C 9x
1697 llroundl NEW: ISO C 9x
1698 log2 NEW: ISO C 9x
1699 log2f NEW: ISO C 9x
1700 log2l NEW: ISO C 9x
1701 lrint NEW: ISO C 9x
1702 lrintf NEW: ISO C 9x
1703 lrintl NEW: ISO C 9x
1704 lround NEW: ISO C 9x
1705 lroundf NEW: ISO C 9x
1706 lroundl NEW: ISO C 9x
1707 lseek64 NEW: LFS
1708 makecontext NEW: Unix98
1709 mempcpy NEW: GNU ext.
1710 mmap64 NEW: LFS
1711 moncontrol REMOVED
1712 modify_ldt NEW: kernel
1713 nan NEW: ISO C 9x
1714 nanf NEW: ISO C 9x
1715 nanl NEW: ISO C 9x
1716 nearbyint NEW: ISO C 9x
1717 nearbyintf NEW: ISO C 9x
1718 nearbyintl NEW: ISO C 9x
1719 netname2host NEW: Secure RPC
1720 netname2user NEW: Secure RPC
1721 nexttoward NEW: ISO C 9x
1722 nexttowardf NEW: ISO C 9x
1723 nexttowardl NEW: ISO C 9x
1724 nftw NEW: Unix98
1725 nftw64 NEW: LFS
1726 open64 NEW: LFS
1727 passwd2des NEW: Secure RPC
1728 pow10 NEW: GNU ext.
1729 pow10f NEW: GNU ext.
1730 pow10l NEW: GNU ext.
1731 pread NEW: Unix98
1732 pread64 NEW: LFS
1733 printf_size NEW: GNU ext.
1734 printf_size_info NEW: GNU ext.
1735 profil_counter REMOVED
1736 pthread_mutexattr_getkind_np REPLACED
1737 pthread_mutexattr_setkind_np REPLACED
1738 ptsname NEW: Unix98 PTY
1739 ptsname_r NEW: Unix98 PTY
1740 putc_locked REMOVED
1741 putchar_locked REMOVED
1742 putgrent NEW: GNU ext.
1743 putmsg NEW: STREAMS
1744 putpmsg NEW: STREAMS
1745 pututxline NEW: Unix98
1746 pwrite NEW: Unix98
1747 pwrite64 NEW: LFS
1748 readdir64 NEW: LFS
1749 readdir64_r NEW: LFS
1750 remquo NEW: ISO C 9x
1751 remquof NEW: ISO C 9x
1752 remquol NEW: ISO C 9x
1753 round NEW: ISO C 9x
1754 roundf NEW: ISO C 9x
1755 roundl NEW: ISO C 9x
1756 rtime NEW: GNU ext.
1757 scalbln NEW: ISO C 9x
1758 scalblnf NEW: ISO C 9x
1759 scalblnl NEW: ISO C 9x
1760 scandir64 NEW: LFS
1761 sendfile NEW: kernel
1762 setcontext NEW: Unix98
1763 setrlimit64 NEW: LFS
1764 setutxent NEW: Unix98
1765 sighold NEW: Unix98
1766 sigignore NEW: Unix98
1767 sigqueue NEW: POSIX.1b
1768 sigrelse NEW: Unix98
1769 sigset NEW: POSIX.1b
1770 sigtimedwait NEW: POSIX.1b
1771 sigwaitinfo NEW: POSIX.1b
1772 sincos NEW: GNU ext.
1773 sincosf NEW: GNU ext.
1774 sincosl NEW: GNU ext.
1775 statfs64 NEW: LFS
1776 statvfs NEW: Unix98
1777 statvfs64 NEW: LFS
1778 strcasestr NEW: GNU ext.
1779 strtoimax NEW: ISO C 9x
1780 strtoumax NEW: ISO C 9x
1781 strverscmp NEW: GNU ext.
1782 svcauthdes_stats NEW: Secure RPC
1783 svcunix_create NEW: sunrpc etx
1784 svcunixfd_create NEW: sunrpc ext
1785 swapcontext NEW: Unix98
1786 tcgetsid NEW: Unix98 PTY
1787 tdestroy NEW: GNU ext.
1788 tgamma NEW: ISO C 9x
1789 tgammaf NEW: ISO C 9x
1790 tgammal NEW: ISO C 9x
1791 tmpfile64 NEW: LFS
1792 trunc NEW: ISO C 9x
1793 truncate64 NEW: LFS
1794 truncf NEW: ISO C 9x
1795 truncl NEW: ISO C 9x
1796 umount2 NEW: kernel
1797 unlockpt NEW: Unix98 PTY
1798 updwtmpx NEW: Unix98
1799 user2netname NEW: Secure RPC
1800 utmpxname NEW: Unix98
1801 versionsort NEW: GNU ext.
1802 versionsort64 NEW: GNU ext.
1803 waitid NEW: Unix98
1804 wcscasecmp NEW: GNU ext.
1805 wcsncasecmp NEW: GNU ext.
1806 wcsnlen NEW: GNU ext.
1807 wcstoimax NEW: ISO C 9x
1808 wcstoll NEW: ISO C 9x
1809 wcstoull NEW: ISO C 9x
1810 wcstoumax NEW: ISO C 9x
1811 wcswcs NEW: Unix98
1812 wordexp NEW: POSIX.2
1813 wordfree NEW: POSIX.2
1814 write_profiling REMOVED
1815 xdecrypt NEW: Secure RPC
1816 xdr_authdes_cred NEW: Secure RPC
1817 xdr_authdes_verf NEW: Secure RPC
1818 xdr_cryptkeyarg NEW: Secure RPC
1819 xdr_cryptkeyarg2 NEW: Secure RPC
1820 xdr_cryptkeyres NEW: Secure RPC
1821 xdr_getcredres NEW: Secure RPC
1822 xdr_key_netstarg NEW: Secure RPC
1823 xdr_key_netstres NEW: Secure RPC
1824 xdr_keybuf NEW: Secure RPC
1825 xdr_keystatus NEW: Secure RPC
1826 xdr_netnamestr NEW: Secure RPC
1827 xdr_sizeof NEW: Secure RPC
1828 xdr_unixcred NEW: sunrpc ext
1829 xencrypt NEW: Secure RPC
1830 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1831 \f
1832 Version 2.0.6
1834 * more bug fixes
1836 \f
1837 Version 2.0.5
1839 * more bug fixes
1841 * inet_ntoa is thread-safe
1843 * updwtmp is moved from libutil to libc
1845 * rewrite of cbrt function
1847 * update of timezone data
1848 \f
1849 Version 2.0.4
1851 * more bug fixes
1852 \f
1853 Version 2.0.3
1855 * more bug fixes
1856 \f
1857 Version 2.0.2
1859 * more bug fixes
1861 * add atoll function
1863 * fix complex problems in Berkeley DB code
1865 * fix math functions
1866 \f
1867 Version 2.0.1
1869 * fixed lots of header problems (especially Linux/GNU specific)
1871 * dynamic loader preserves all registers
1873 * Roland McGrath provided support for handling of auxiliary objects in
1874 the ELF dynamic loader.
1876 * support for parallel builds is improved
1877 \f
1878 Version 2.0
1880 * GNU extensions are no longer declared by default. To enable them you
1881 must define the macro `_GNU_SOURCE' in your program or compile with
1882 `-D_GNU_SOURCE'.
1884 * The library has changed from using GNU ld symbol aliases to using weak
1885 symbols where available. The ELF object file format supports weak
1886 symbols; GNU ld also supports weak symbols in the a.out format. (There
1887 is also now support for other GNU ld extensions in ELF. Use the
1888 `--with-elf' option to configure to indicate you have ELF, and
1889 `--with-gnu-ld' if using GNU ld.) This change resulted in the deletion
1890 of many files which contained only symbol aliases, reducing the size of
1891 the source and the compiled library; many other files were renamed to
1892 less cryptic names previously occupied by the symbol alias files.
1893 There is a new header file <elf.h> for programs which operate on
1894 files in the ELF format.
1896 * Converted to Autoconf version 2, so `configure' has more options.
1897 Run `configure --help' to see the details.
1899 * The library can now be configured to build profiling, highly-optimized
1900 (but undebuggable), and/or shared libraries (ELF with GNU ld only). The
1901 `--enable-profile', `--enable-omitfp', and `--enable-shared' options to
1902 `configure' enable building these extra libraries. The shared library is
1903 built by default when using both ELF and GNU ld. When shared libraries
1904 are enabled, the new library `-ldl' is available for arbitrary run-time
1905 loading of shared objects; its interface is defined in <dlfcn.h>. The
1906 new header file <link.h> gives access to the internals of the run-time
1907 dynamic linker, `ld.so'. The shell script `ldd' is similar to the
1908 application of same name on other systems and it provides information
1909 about dynamically linked binaries.
1911 * The C library now provides the run-time support code for profiling
1912 executables compiled with `-pg'. Programs can control the profiling code
1913 through the interface in <sys/gmon.h>. The `gmon.out' files written by
1914 the GNU C library can be read only by GNU `gprof' (from GNU binutils);
1915 the support for this file format was contributed by David Mosberger-Tang.
1917 * The math code has been replaced with a math library based on fdlibm from
1918 Sun, and modified by JT Conklin and Ulrich Drepper with i387 support, by
1919 Ian Taylor with `float' functions and by Ulrich Drepper with `long double'
1920 functions. The math functions now reside in a separate library, so
1921 programs using them will need to use `-lm' their linking commands.
1923 * John C. Bowman contributed optimized ix87 assembler inline functions.
1925 * Ulrich Drepper has contributed support for an `/etc/nsswitch.conf'
1926 mechanism similar to that found in Solaris 2. This is now used for the
1927 group, passwd, hosts, networks, services, protocols, rpc, ethers,
1928 shadow, netgroup, publickey, and alias databases. The `nsswitch.conf'
1929 file controls what services are used for each individual database. This
1930 works by loading shared libraries with names specified in `nsswitch.conf',
1931 so service modules can be changed or added at any time without even
1932 relinking any program. Currently there are the file, db, and NIS based
1933 NSS services available.
1935 * The new functions `strtoq' and `strtouq' parse integer values from
1936 strings, like `strtol' and `strtoul', but they return `long long int' and
1937 `unsigned long long int' values, respectively (64-bit quantities).
1939 * The new functions `strtof' and `strtold' parse floating-point values from
1940 strings, like `strtod', but they return `float' and `long double' values,
1941 respectively (on some machines `double' and `long double' are the same).
1943 * Ulrich Drepper has contributed new implementations of the floating-point
1944 printing and reading code used in the `printf' family of functions and
1945 `strtod', `strtof', and `strtold'. These new functions are perfectly
1946 accurate, and much faster than the old ones.
1948 * The implementation of the POSIX locale model was completely rewritten by
1949 Ulrich Drepper. This includes the new programs `localedef' and `locale'
1950 to compile the POSIX locale definition.
1952 * The former dummy implementations of the strcoll and strxfrm function are
1953 now replaced by fully functional code contributed by Ulrich Drepper. The
1954 collation information comes from the POSIX locale definitions.
1956 * The new header <langinfo.h> defines an interface for accessing
1957 various locale-dependent data (using the locale chosen with `setlocale').
1959 * Ulrich Drepper has contributed a new suite of functions for operation on
1960 wide-character and multibyte-character strings, in <wchar.h>;
1961 and classification and case conversion of wide characters, in <wctype.h>.
1962 These new functions are conforming to the ISO C, Amendement 1 specification.
1964 * There is now a second implementation of the standard I/O library available.
1965 It comes from GNU libg++ as was written by Per Bothner, heavily modified
1966 by Hongjiu Lu and made thread safe by Ulrich Drepper.
1968 * You can now use positional parameter specifications in format strings
1969 for the `printf' and `scanf' families of functions. For example,
1970 `printf ("Number %2$d, Mr %1$s\n", "Jones", 6);'' prints
1971 ``Number 6, Mr Jones''. This is mainly useful when providing different
1972 format strings for different languages, whose grammars may dictate
1973 different orderings of the values being printed. To support this
1974 feature, the interface for `register_printf_handler' has changed; see
1975 the header file <printf.h> for details.
1977 * The `printf' and `scanf' families of functions now understand a new
1978 formatting flag for numeric conversions: the ' flag (e.g. %'d or %'f) says
1979 to group numbers as indicated by the locale; for `scanf' and friends, this
1980 says to accept as valid only a number with all the proper grouping
1981 separators in the right places. In the default "C" locale, numbers are
1982 not grouped; but locales for specific countries will define the usual
1983 conventions (i.e. separate thousands with `,' in the US locale).
1985 * The pgrp functions have been regularized, slightly incompatibly but much
1986 less confusingly. The core functions are now `getpgid' and `setpgid',
1987 which take arguments for the PID to operate on; the POSIX.1 `getpgrp' (no
1988 argument) and BSD `setpgrp' (identical to `setpgid') functions are
1989 provided for compatibility. There is no longer an incompatible `getpgrp'
1990 with an argument declared under _BSD_SOURCE; no BSD code uses it.
1992 * The new header file <fts.h> and suite of functions simplify programs that
1993 operate on directory trees. This code comes from 4.4 BSD.
1995 * The resolver code has been updated from the BIND 4.9.5-P1 release.
1996 Parts of the code were heavily modified by Ulrich Drepper to fit in the
1997 NSS scheme used in glibc.
1999 * There is a new malloc debugging hook `__memalign_hook'.
2001 * There are new typedefs `ushort' for `unsigned short int' and `uint' for
2002 `unsigned int' in <sys/types.h>. These are for compatibility only and
2003 their use is discouraged.
2005 * The `-lmcheck' library to enable standard malloc debugging hooks is now
2006 done differently, so that it works even without GNU ld.
2008 * New function `euidaccess' checks allowed access to a file like `access',
2009 but using the effective IDs instead of the real IDs.
2011 * The time zone data files have been updated for the latest and greatest
2012 local time conventions of the countries of the world.
2014 * The new function `dirfd' extracts the file descriptor used by a DIR stream;
2015 see <dirent.h>.
2017 * The new functions `ecvt', `fcvt', and `gcvt' provide an obsolete interface
2018 for formatting floating-point numbers. They are provided only for
2019 compatibility; new programs should use `sprintf' instead. There are
2020 also equivalent function for the `long double' floating-point type and
2021 all functions also exist in a reentrant form.
2023 * The new auxiliary library `-lutil' from 4.4 BSD contains various
2024 functions for maintaining the login-record files (primarily of use to
2025 system programs such as `login'), and convenient functions for
2026 allocating and initializing a pseudo-terminal (pty) device.
2028 * Ulrich Drepper has contributed new support for System V style
2029 shared memory and IPC on systems that support it.
2031 * Ulrich Drepper has contributed several miscellaneous new functions found
2032 in System V: The `hsearch' family of functions provide an effective
2033 implementation of hash tables; `a64l' and `l64a' provide a very simple
2034 binary to ASCII mapping; `drand48' and friends provide a 48-bit random
2035 number generator.
2037 * Ulrich Drepper has contributed new reentrant counterparts for the
2038 `random' and `hsearch' families of functions; `random_r', `hsearch_r', etc.
2040 * Ulrich Drepper has contributed new, highly-optimized versions of several
2041 string functions for the i486/Pentium family of processors.
2043 * Ulrich Drepper has updated the Linux-specific code, based largely
2044 on work done in Hongjiu Lu's version of GNU libc for Linux.
2045 The GNU library now supports Linux versions 2.0.10 and later,
2046 using the ELF object file format (i[3456]86-*-linux).
2048 * Andreas Schwab has ported the C library to Linux/m68k (m68k-*-linux).
2050 * David Mosberger-Tang and Richard Henderson have ported the C library
2051 to Linux/Alpha (alpha-*-linux). Richard Henderson contributed the
2052 dynamic linking support for ELF/Alpha.
2054 * Richard Henderson contributed several Alpha optimized assembler function
2055 for arithmetic and string handling.
2057 * Ulrich Drepper has contributed a new set of message catalog functions to
2058 support multiple languages using the <libintl.h> interface, for use with
2059 his new package GNU gettext. Translation volunteers have contributed
2060 catalogs of the library's messages in Spanish, German, and Korean.
2062 * For compatibility with XPG4, Ulrich Drepper has contributed the `gencat'
2063 program and the `catgets' function for reading the catalog files it
2064 creates. (The <libintl.h> interface is preferred; we include the
2065 <nl_types.h> interface using `catgets' only for source compatibility with
2066 programs already written to use it.)
2068 * New header file <values.h> gives SVID-compatible names for <limits.h>
2069 constants.
2071 * Various new macros, declarations, and small header files for compatibility
2072 with 4.4 BSD.
2074 * New function `group_member' is a convenient way to check if a process has
2075 a given effective group ID.
2077 * When using GCC 2.7 and later, the socket functions are now declared in a
2078 special way so that passing an argument of type `struct sockaddr_in *',
2079 `struct sockaddr_ns *', or `struct sockaddr_un *' instead of the generic
2080 `struct sockaddr *' type, does not generate a type-clash warning.
2082 * New function `error' declared in header file <error.h> is a convenient
2083 function for printing error messages and optionally exiting; this is the
2084 canonical function used in GNU programs. The new functions `err', `warn',
2085 and friends in header file <err.h> are the canonical 4.4 BSD interface for
2086 doing the same thing.
2088 * The <glob.h> interface has several new flags from 4.4 BSD that extend the
2089 POSIX.2 `glob' function to do ~ and {...} expansion.
2091 * New function `unsetenv' complements `setenv' for compatibility with 4.4 BSD.
2092 `clearenv' which is used in POSIX.9 is also available.
2094 * New function `getsid' returns session ID number on systems that support it.
2096 * We have incorporated the 4.4 BSD `db' library (version 1.85). New header
2097 files <db.h> and <mpool.h> provide a rich set of functions for several
2098 types of simple databases stored in memory and in files, and <ndbm.h> is
2099 an old `ndbm'-compatible interface using the `db' functions. Link with
2100 `-ldb' to get these functions.
2102 * New macro `strdupa' copies a string like `strdup', but uses local stack
2103 space from `alloca' instead of dynamic heap space from `malloc'.
2105 * New function `strnlen' is like `strlen' but searches only a given maximum
2106 number of characters for the null terminator. `stpncpy', `strndup' and
2107 `strndupa' are similar variants for the `stpcpy', `strdup' and `strdupa'
2108 function.
2110 * New function `statfs' in header <sys/statfs.h>.
2112 * The new <argz.h> and <envz.h> interfaces contributed by Miles Bader
2113 provide convenient functions for operating on blocks of null-terminated
2114 strings.
2116 * A new suite of functions in <utmp.h> handle all the details of reading
2117 and writing the utmp file.
2119 * An implementation of the NIS/YP(tm) based NSS service was contributed by
2120 Thorsten Kukuk.
2122 * Paul Eggert and Ulrich Drepper modified the `strftime' function to be
2123 completely POSIX compliant and also implemented the extended functionality
2124 to handle alternate digit representation and alternate era date formats.
2126 * Ulrich Drepper provided an implementation of the `strptime' function
2127 defined in XPG4.2 which transforms a string into a `struct tm' value.
2129 * Paul Eggert provided the tzselect shell script as part of the timezone
2130 code. The shell script makes it easy to select the correct timezone
2131 specification.
2133 * The implementation of the malloc family of functions is completely replaced
2134 by a new implementation by Doug Lea with many improvements by Wolfram Gloger.
2135 The implementation uses the mmap function (if available) and it is
2136 optimized for the use in multi threaded programs.
2138 * Ulrich Drepper contributed a MD5 "encryption" for the crypt family of
2139 functions. This new functionality is usable by specifying a special
2140 salt string and it is compatible with implementation on *BSD systems.
2142 * Lots of functions from the XPG4.2 standard were added by Ulrich Drepper:
2143 `getsubopt' to handle second level command line options, `bsd_signal'
2144 to access BSD style `signal' functionality, the obsolete `regexp' style
2145 expression matcher.
2147 * the `lchown' function is available on system which support this
2148 functionality.
2150 * The implementation of the shadow password handling function was contributed
2151 by Ulrich Drepper.
2153 * David Mosberger-Tang changed the SunRPC implementation to be 64bit safe.
2155 * POSIX.1g support was added. The <sys/select.h> header is available,
2156 `isfdtype' and `pselect' are implemented. Craig Metz contributed an
2157 implementation of `getaddrinfo'.
2158 \f
2159 Version 1.09
2161 * For cross-compilation you should now set `BUILD_CC' instead of `HOST_CC'.
2163 * New header file <fstab.h> and new functions `getfsspec', `getfsent' and
2164 friends, for parsing /etc/fstab. This code comes from 4.4 BSD.
2166 * The new function `daemon' from 4.4 BSD is useful for server programs that
2167 want to put themselves in the background.
2169 * Joel Sherrill has contributed support for several standalone boards that
2170 run without an operating system.
2172 * `printf', `scanf' and friends now accept a `q' type modifier for long
2173 long int as well as `ll'. Formats using these might be `%qu' or `%lld'.
2175 * All of the code taken from BSD (notably most of the math and networking
2176 routines) has been updated from the BSD 4.4-Lite release.
2178 * The resolver code has been updated from the BIND-4.9.3-BETA9 release.
2180 * The new functions `getdomainname' and `setdomainname' fetch or change the
2181 YP/NIS domain name. These are system calls which exist on systems which
2182 have YP (aka NIS).
2184 * The time zone data files have been updated for the latest international
2185 conventions.
2187 * The SunRPC programs `portmap' and `rpcinfo' are now installed in
2188 $(sbindir) (usually /usr/local/sbin) instead of $(bindir).
2189 \f
2190 Version 1.08
2192 * The C library now includes support for Sun RPC, from Sun's free
2193 RPCSRC-4.0 distribution. The `portmap', `rpcinfo', and `rpcgen' programs
2194 are included. (There is still no support for YP.)
2196 * Tom Quinn has contributed a port of the C library to SGI machines running
2197 Irix 4 (mips-sgi-irix4).
2199 * The new `lockf' function is a simplified interface to the locking
2200 facilities of `fcntl', included for compatibility.
2202 * New time functions `timegm', `timelocal', and `dysize' for compatibility.
2204 * New header file <sys/timeb.h> and new function `ftime' for compatibility.
2206 * New header files <poll.h> and <sys/poll.h> and new function `poll' for
2207 compatibility.
2209 * The error message printed by `assert' for a failed assertion now includes
2210 the name of the program (if using GNU ld) and the name of the calling
2211 function (with versions of GCC that support this).
2213 * The `psignal' function is now declared in <signal.h>, not <stdio.h>.
2215 * The library now includes the <sys/mman.h> header file and memory
2216 management functions `mmap', `munmap', `mprotect', `msync', and
2217 `madvise', on systems that support those facilities.
2219 * The interface for `mcheck' has changed slightly: the function called to
2220 abort the program when an allocation inconsistency is detected now takes
2221 an argument that indicates the type of failure. The new function
2222 `mprobe' lets you request a consistency check for a particular block at
2223 any time (checks are normally done only when you call `free' or `realloc'
2224 on a block).
2226 * It is now possible to easily cross-compile the C library, building on one
2227 system a library to run on another machine and/or operating system. All
2228 you need to do is set the variable `HOST_CC' in `configparms' to the
2229 native compiler for programs to run on the machine you are building on (a
2230 few generator programs are used on Unix systems); set `CC' to the
2231 cross-compiler.
2233 * The new function `fexecve' (only implemented on the GNU system) executes
2234 a program file given a file descriptor already open on the file.
2235 \f
2236 Version 1.07
2238 * Brendan Kehoe has contributed most of a port to the DEC Alpha
2239 running OSF/1 (alpha-dec-osf1). He says it is 75% complete.
2241 * You can set the variable `libprefix' in `configparms' to specify a prefix
2242 to be prepended to installed library files; this makes it easy to install
2243 the GNU C library to be linked as `-lgnuc' or whatever.
2245 * The new `stpncpy' is a cross between `stpcpy' and `strncpy': It
2246 copies a limited number of characters from a string, and returns the
2247 address of the last character written.
2249 * You no longer need to check for whether the installed `stddef.h' is
2250 compatible with the GNU C library. configure now checks for you.
2252 * You can now define a per-stream `fileno' function to convert the
2253 stream's cookie into an integral file descriptor.
2255 * ``malloc (0)'' no longer returns a null pointer. Instead, it
2256 allocates zero bytes of storage, and returns a unique pointer which
2257 you can pass to `realloc' or `free'. The behavior is undefined if
2258 you dereference this pointer.
2260 * The C library now runs on Sony NEWS m68k machines running either
2261 NewsOS 3 or NewsOS 4.
2263 * The new `syscall' function is a system-dependent primitive function
2264 for invoking system calls. It has the canonical behavior on Unix
2265 systems, including unreliable return values for some calls (such as
2266 `pipe', `fork' and `getppid').
2268 * The error code `EWOULDBLOCK' is now obsolete; it is always defined
2269 to `EAGAIN', which is the preferred name. On systems whose kernels
2270 use two distinct codes, the C library now translates EWOULDBLOCK to
2271 EAGAIN in every system call function.
2272 \f
2273 Version 1.06
2275 * The GNU C Library Reference Manual is now distributed with the library.
2276 `make dvi' will produce a DVI file of the printed manual.
2277 `make info' will produce Info files that you can read on line using C-h i
2278 in Emacs or the `info' program.
2279 Please send comments on the manual to bug-glibc-manual@gnu.org.
2281 * The library now supports SVR4 on i386s (i386-unknown-sysv4).
2283 * Brendan Kehoe has contributed a port to Sun SPARCs running Solaris 2.
2285 * Jason Merrill has contributed a port to the Sequent Symmetry running
2286 Dynix version 3 (i386-sequent-dynix).
2288 * The library has been ported to i386s running SCO 3.2.4 (also known as SCO
2289 ODT 2.0; i386-unknown-sco3.2.4) or SCO 3.2 (i386-unknown-sco3.2).
2291 * New function `memory_warnings' lets you arrange to get warnings when
2292 malloc is running out of memory to allocate, like Emacs gives you.
2294 * The C library now contains the relocating allocator used in Emacs 19 for
2295 its editing buffers. This allocator (ralloc) minimizes allocation
2296 overhead and fragmentation by moving allocated regions around whenever it
2297 needs to. You always refer to a ralloc'd region with a "handle" (a
2298 pointer to a pointer--an object of type `void **').
2300 * There is a new `printf' format: `%m' gives you the string corresponding
2301 to the error code in `errno'.
2303 * In `scanf' formats, you can now use `%as' or `%a[' to do the normal `%s'
2304 or `%[' conversion, but instead of filling in a fixed-sized buffer you
2305 pass, the `a' modifier says to fill in a `char **' you pass with a
2306 malloc'd string.
2308 * The `fnmatch' function supports the new flag bits `FNM_LEADING_DIR' and
2309 `FNM_CASEFOLD'. `FNM_LEADING_DIR' lets a pattern like `foo*' match a
2310 name like `foo/bar'. `FNM_CASEFOLD' says to ignore case in matching.
2312 * `mkstemp' is a traditional Unix function to atomically create and open a
2313 uniquely-named temporary file.
2314 \f
2315 Version 1.05
2317 * The standard location for the file that says what the local timezone is
2318 has changed again. It is now `/usr/local/etc/localtime' (or more
2319 precisely, `${prefix}/etc/localtime') rather than `/etc/localtime'.
2321 * The distribution no longer contains any files with names longer than 14
2322 characters.
2324 * `struct ttyent' has two new flag bits: TTY_TRUSTED and TTY_CONSOLE.
2325 These are set by the new `trusted' and `console' keywords in `/etc/ttys'.
2327 * New functions `ttyslot' and `syslog' from 4.4 BSD.
2328 \f
2329 Version 1.04
2331 * The configuration process has changed quite a bit. The `configure'
2332 script is now used just like the configuration scripts for other GNU
2333 packages. The `sysdeps' directory hierarchy is much rearranged.
2334 The file `INSTALL' explains the new scheme in detail.
2336 * The header files no longer need to be processed into ANSI C and
2337 traditional C versions. There is just one set of files to install, and
2338 it will work with ANSI or old C compilers (including `gcc -traditional').
2340 * Brendan Kehoe and Ian Lance Taylor have ported the library to the
2341 MIPS DECStation running Ultrix 4.
2343 * The Sun 4 startup code (crt0) can now properly load SunOS 4 shared libraries.
2344 Tom Quinn contributed the initial code. The GNU C library can NOT yet be
2345 made itself into a shared library.
2347 * Yet further improved support for the i386, running 4.3 BSD-like systems
2348 (such as Mach 3 with the Unix single-server), or System V.
2350 * New function `strncasecmp' to do case-insensitive string comparison
2351 with limited length.
2353 * New function `strsep' is a reentrant alternative to `strtok'.
2355 * New functions `scandir' and `alphasort' for searching directories.
2357 * New function `setenv' is a better interface to `putenv'.
2359 * Ian Lance Taylor has contributed an implementation of the SVID `ftw'
2360 function for traversing a directory tree.
2362 * The GNU obstack package is now also part of the C library.
2363 The new function `open_obstack_stream' creates a stdio stream that
2364 writes onto an obstack; `obstack_printf' and `obstack_vprintf' do
2365 formatted output directly to an obstack.
2367 * Miscellaneous new functions: reboot, nice, sigaltstack (4.4 BSD only),
2368 cfmakeraw, getusershell, getpass, swab, getttyent, seteuid, setegid.
2370 * `FNM_FILE_NAME' is another name for `FNM_PATHNAME', used with `fnmatch'.
2372 * The new functions `strfry' and `memfrob' do mysterious and wonderful
2373 things to your strings.
2375 * There are some new test programs: test-fseek, testmb, and testrand.
2377 * Some work has been done to begin porting the library to 4.4 BSD and Linux.
2378 These ports are not finished, but are a good starting place for really
2379 supporting those systems.
2381 * `/etc/localtime' is now the standard location for the file that says what
2382 the local timezone is, rather than `/usr/local/lib/zoneinfo/localtime'.
2383 This follows the general principle that `/etc' is the place for all local
2384 configuration files.
2386 * The C library header files now use `extern "C"' when used by the C++
2387 compiler, so the C library should now work with C++ code.
2389 * The header file <bstring.h> is gone. <string.h> now declares bcopy,
2390 bcmp, bzero, and ffs. (Update: nowadays these functions are declared
2391 in <strings.h>.)
2393 * Mike Haertel (of GNU e?grep and malloc fame) has written a new sorting
2394 function which uses the `merge sort' algorithm, and is said to be
2395 significantly faster than the old GNU `qsort' function. Merge sort is
2396 now the standard `qsort' function. The new algorithm can require a lot
2397 of temporary storage; so, the old sorting function is called when the
2398 required storage is not available.
2400 * The C library now includes Michael Glad's Ultra Fast Crypt, which
2401 provides the Unix `crypt' function, plus some other entry points.
2403 * The code and header files taken from 4.4 BSD have been updated with the
2404 latest files released from Berkeley.
2405 \f
2406 ----------------------------------------------------------------------
2407 Copyright information:
2409 Copyright (C) 1992-2014 Free Software Foundation, Inc.
2411 Permission is granted to anyone to make or distribute verbatim copies
2412 of this document as received, in any medium, provided that the
2413 copyright notice and this permission notice are preserved,
2414 thus giving the recipient permission to redistribute in turn.
2416 Permission is granted to distribute modified versions
2417 of this document, or of portions of it,
2418 under the above conditions, provided also that they
2419 carry prominent notices stating who last changed them.
2420 \f
2421 Local variables:
2422 version-control: never
2423 fill-column: 76
2424 End: