| blob | c69d40a7ee306f2ed4573d93e1c4e9dd42e93a5a |
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, 16639, 16642, 16670, 16674, 16677, 16683,
14 16689, 16695, 16701, 16706, 16707.
16 * Running the testsuite no longer terminates as soon as a test fails.
17 Instead, a file tests.sum (xtests.sum from "make xcheck") is generated,
18 with PASS or FAIL lines for individual tests. A summary of the results is
19 printed, including a list of failing lists, and "make check" exits with
20 error status if there were any unexpected failures. "make check
21 stop-on-test-failure=y" may be used to keep the old behavior.
23 * The am33 port, which had not worked for several years, has been removed
24 from ports.
26 * The _BSD_SOURCE and _SVID_SOURCE feature test macros are no longer
27 supported; they now act the same as _DEFAULT_SOURCE (but generate a
28 warning). Except for cases where _BSD_SOURCE enabled BSD interfaces that
29 conflicted with POSIX (support for which was removed in 2.19), the
30 interfaces those macros enabled remain available when compiling with
31 _GNU_SOURCE defined, with _DEFAULT_SOURCE defined, or without any feature
32 test macros defined.
33 \f
34 Version 2.19
36 * The following bugs are resolved with this release:
38 156, 387, 431, 762, 832, 926, 2801, 4772, 6786, 6787, 6807, 6810, 6981,
39 7003, 9721, 9954, 10253, 10278, 11087, 11157, 11214, 12100, 12486, 12751,
40 12986, 13028, 13982, 13985, 14029, 14032, 14120, 14143, 14155, 14286,
41 14547, 14699, 14752, 14782, 14876, 14910, 15004, 15048, 15073, 15089,
42 15128, 15218, 15268, 15277, 15308, 15362, 15374, 15400, 15425, 15427,
43 15483, 15522, 15531, 15532, 15593, 15601, 15608, 15609, 15610, 15632,
44 15640, 15670, 15672, 15680, 15681, 15723, 15734, 15735, 15736, 15748,
45 15749, 15754, 15760, 15763, 15764, 15797, 15799, 15825, 15843, 15844,
46 15846, 15847, 15849, 15850, 15855, 15856, 15857, 15859, 15867, 15886,
47 15887, 15890, 15892, 15893, 15895, 15897, 15901, 15905, 15909, 15915,
48 15917, 15919, 15921, 15923, 15939, 15941, 15948, 15963, 15966, 15968,
49 15985, 15988, 15997, 16032, 16034, 16036, 16037, 16038, 16041, 16046,
50 16055, 16071, 16072, 16074, 16077, 16078, 16103, 16112, 16143, 16144,
51 16146, 16150, 16151, 16153, 16167, 16169, 16172, 16195, 16214, 16245,
52 16271, 16274, 16283, 16289, 16293, 16314, 16316, 16330, 16337, 16338,
53 16356, 16365, 16366, 16369, 16372, 16375, 16379, 16381, 16384, 16385,
54 16386, 16387, 16390, 16394, 16398, 16400, 16407, 16408, 16414, 16430,
55 16431, 16453, 16474, 16506, 16510, 16529
57 * Slovenian translations for glibc messages have been contributed by the
58 Translation Project's Slovenian team of translators.
60 * The public headers no longer use __unused nor __block. This change is to
61 support compiling programs that are derived from BSD sources and use
62 __unused internally, and to support compiling with Clang's -fblock
63 extension which uses __block.
65 * CVE-2012-4412 The strcoll implementation caches indices and rules for
66 large collation sequences to optimize multiple passes. This cache
67 computation may overflow for large collation sequences and may cause a
68 stack or buffer overflow. This is now fixed to use a slower algorithm
69 which does not use a cache if there is an integer overflow.
71 * CVE-2012-4424 The strcoll implementation uses malloc to cache indices and
72 rules for large collation sequences to optimize multiple passes and falls
73 back to alloca if malloc fails, resulting in a possible stack overflow.
74 The implementation now falls back to an uncached collation sequence lookup
75 if malloc fails.
77 * CVE-2013-4788 The pointer guard used for pointer mangling was not
78 initialized for static applications resulting in the security feature
79 being disabled. The pointer guard is now correctly initialized to a
80 random value for static applications. Existing static applications need
81 to be recompiled to take advantage of the fix (bug 15754).
83 * CVE-2013-4237 The readdir_r function could write more than NAME_MAX bytes
84 to the d_name member of struct dirent, or omit the terminating NUL
85 character. (Bugzilla #14699).
87 * CVE-2013-4332 The pvalloc, valloc, memalign, posix_memalign and
88 aligned_alloc functions could allocate too few bytes or corrupt the
89 heap when passed very large allocation size values (Bugzilla #15855,
90 #15856, #15857).
92 * CVE-2013-4458 Stack overflow in getaddrinfo with large number of results
93 for AF_INET6 has been fixed (Bugzilla #16072).
95 * New locales: ak_GH, anp_IN, ar_SS, cmn_TW, hak_TW, lzh_TW, nan_TW, pap_AW,
96 pap_CW, quz_PE, the_NP.
98 * Substantially revised locales: gd_GB, ht_HT
100 * The LC_ADDRESS field was updated to support country_car for almost all
101 supported locales.
103 * ISO 1427 definitions were updated.
105 * ISO 3166 definitions were updated.
107 * The localedef utility now supports --big-endian and --little-endian
108 command-line options to generate locales for a different system from that
109 for which the C library was built.
111 * Binary locale files now only depend on the endianness of the system for
112 which they are generated and not on other properties of that system. As a
113 consequence, binary files generated with new localedef may be incompatible
114 with old versions of the GNU C Library, and binary files generated with
115 old localedef may be incompatible with this version of the GNU C Library,
116 in the following circumstances:
118 + Locale files may be incompatible on m68k systems.
120 + Locale archive files (but not separate files for individual locales) may
121 be incompatible on systems where plain "char" is signed.
123 * The configure option --disable-versioning has been removed. Builds with
124 --disable-versioning had not worked for several years.
126 * ISO 639 definitions were updated for Chiga (cgg) and Chinese (gan, hak, czh,
127 cjy, lzh, cmn, mnp, cdo, czo, cpx, wuu, hsn, yue).
129 * SystemTap probes for malloc have been introduced.
131 * SystemTap probes for slow multiple precision fallback paths of
132 transcendental functions have been introduced.
134 * Support for powerpc64le has been added.
136 * The soft-float powerpc port now supports e500 processors.
138 * Support for STT_GNU_IFUNC symbols added for ppc32/power4+ and ppc64.
140 * A new feature test macro _DEFAULT_SOURCE is available to enable the same
141 set of header declarations that are enabled by default, even when other
142 feature test macros or compiler options such as -std=c99 would otherwise
143 disable some of those declarations.
145 * The _BSD_SOURCE feature test macro no longer enables BSD interfaces that
146 conflict with POSIX. The libbsd-compat library (which was a dummy library
147 that did nothing) has also been removed.
149 * Preliminary documentation about Multi-Thread, Async-Signal and
150 Async-Cancel Safety has been added.
151 \f
152 Version 2.18
154 * The following bugs are resolved with this release:
156 2546, 2560, 5159, 6809, 7006, 10060, 10062, 10283, 10357, 10686, 11120,
157 11561, 12310, 12387, 12492, 12515, 12723, 13550, 13889, 13951, 13988,
158 14142, 14176, 14200, 14256, 14280, 14293, 14317, 14327, 14478, 14496,
159 14582, 14686, 14812, 14888, 14894, 14907, 14908, 14909, 14920, 14952,
160 14964, 14981, 14982, 14985, 14991, 14994, 14996, 15000, 15003, 15006,
161 15007, 15014, 15020, 15022, 15023, 15036, 15054, 15055, 15062, 15078,
162 15084, 15085, 15086, 15100, 15160, 15214, 15221, 15232, 15234, 15283,
163 15285, 15287, 15304, 15305, 15307, 15309, 15327, 15330, 15335, 15336,
164 15337, 15339, 15342, 15346, 15359, 15361, 15366, 15380, 15381, 15394,
165 15395, 15405, 15406, 15409, 15416, 15418, 15419, 15423, 15424, 15426,
166 15429, 15431, 15432, 15441, 15442, 15448, 15465, 15480, 15485, 15488,
167 15490, 15492, 15493, 15497, 15506, 15529, 15536, 15553, 15577, 15583,
168 15618, 15627, 15631, 15654, 15655, 15666, 15667, 15674, 15711, 15755,
169 15759.
171 * CVE-2013-2207 Incorrectly granting access to another user's pseudo-terminal
172 has been fixed by disabling the use of pt_chown (Bugzilla #15755).
173 Distributions can re-enable building and using pt_chown via the new configure
174 option `--enable-pt_chown'. Enabling the use of pt_chown carries with it
175 considerable security risks and should only be used if the distribution
176 understands and accepts the risks.
178 * CVE-2013-0242 Buffer overrun in regexp matcher has been fixed (Bugzilla
179 #15078).
181 * CVE-2013-1914 Stack overflow in getaddrinfo with many results has been
182 fixed (Bugzilla #15330).
184 * Add support for calling C++11 thread_local object destructors on thread
185 and program exit. This needs compiler support for offloading C++11
186 destructor calls to glibc.
188 * Improved worst case performance of libm functions with double inputs and
189 output.
191 * Support for priority inherited mutexes in pthread condition variables on
192 non-x86 architectures.
194 * Port to Xilinx MicroBlaze contributed by David Holsgrove.
196 * Optimized string functions for AArch64. Implemented by Marcus Shawcroft.
198 * Optimized string functions for ARM. Implemented by Will Newton and
199 Richard Henderson.
201 * Optimized libm functions for SPARC. Implemented by David S. Miller.
203 * Support for building more of ARM glibc as Thumb-2 code. Implemented by
204 Richard Henderson.
206 * Support for building most of MIPS glibc as MIPS16 code. Implemented by
207 Chung-Lin Tang, Maciej W. Rozycki and Maxim Kuvyrkov.
209 * Added a benchmark framework to track performance of functions in glibc.
211 * New <math.h> macro named issignaling to check for a signaling NaN (sNaN).
212 It is based on draft TS 18661 and currently enabled as a GNU extension.
214 * On Linux, the clock function now uses the clock_gettime system call
215 for improved precision, rather than old times system call.
217 * Added support for version-3 tz format files. This is needed when using
218 the tz database release 2013e or later, and affects a few unusual cases --
219 currently only TZ='America/Godthab' for time stamps after 2037.
221 * Added new API functions pthread_getattr_default_np and
222 pthread_setattr_default_np to get and set the default pthread
223 attributes of a process.
225 * Added support for TSX lock elision for pthread mutexes on i386 and x86-64.
226 This may improve lock scaling of existing programs on TSX capable systems.
227 When the --enable-lock-elision=yes parameter is specified at configure
228 time lock elision will be enabled by default for all PTHREAD_MUTEX_DEFAULT
229 mutexes.
231 * Support added for AT_HWCAP2 (to coincide with Linux kernel 3.10
232 availability). Implemented by Ryan S. Arnold.
234 * Support added for POWER8 platform. Implemented by Ryan S. Arnold.
235 \f
236 Version 2.17
238 * The following bugs are resolved with this release:
240 1349, 3439, 3479, 3665, 5044, 5246, 5298, 5400, 6530, 6677, 6778, 6808,
241 9685, 9914, 10014, 10038, 10114, 10191, 10631, 10873, 11438, 11607, 11638,
242 11741, 12140, 13013, 13412, 13542, 13601, 13603, 13604, 13629, 13679,
243 13696, 13698, 13717, 13741, 13759, 13761, 13763, 13881, 13939, 13950,
244 13952, 13966, 14042, 14047, 14090, 14150, 14151, 14152, 14154, 14157,
245 14166, 14173, 14195, 14197, 14237, 14246, 14251, 14252, 14283, 14298,
246 14303, 14307, 14328, 14331, 14336, 14337, 14347, 14349, 14368, 14376,
247 14417, 14447, 14459, 14476, 14477, 14501, 14505, 14510, 14516, 14518,
248 14519, 14530, 14532, 14538, 14543, 14544, 14545, 14557, 14562, 14568,
249 14576, 14579, 14583, 14587, 14595, 14602, 14610, 14621, 14638, 14645,
250 14648, 14652, 14660, 14661, 14669, 14672, 14683, 14694, 14716, 14719,
251 14743, 14767, 14783, 14784, 14785, 14793, 14796, 14797, 14801, 14803,
252 14805, 14807, 14811, 14815, 14821, 14822, 14824, 14828, 14831, 14833,
253 14835, 14838, 14856, 14863, 14865, 14866, 14868, 14869, 14871, 14872,
254 14879, 14889, 14893, 14898, 14914.
256 * Optimization of memcpy for MIPS.
258 * CVE-2011-4609 svc_run() produces high cpu usage when accept fails with
259 EMFILE has been fixed (Bugzilla #14889).
261 * The add-on ports collection is now distributed in the "ports" subdirectory
262 of the main GNU C Library distribution, rather than separately.
264 * Port to ARM AArch64 contributed by Linaro.
266 * Support for STT_GNU_IFUNC symbols added for s390 and s390x.
267 Optimized versions of memcpy, memset, and memcmp added for System z10 and
268 zEnterprise z196.
269 Implemented by Andreas Krebbel.
271 * The new function secure_getenv allows secure access to the environment,
272 returning NULL if running in a SUID/SGID process. This function replaces
273 the internal function __secure_getenv.
275 * SystemTap static probes have been added into the dynamic linker.
276 Implemented by Gary Benson.
278 * Optimizations of string functions strstr, strcasestr and memmem.
279 Implemented by Maxim Kuvyrkov.
281 * The minimum Linux kernel version that this version of the GNU C Library
282 can be used with is 2.6.16.
284 * Optimizations of string functions memchr, wcschr, wcscpy, and wcsrchr for
285 powerpc POWER7. Implemented by Will Schmidt.
287 * New configure option --disable-nscd builds the C library such that it
288 never attempts to contact the Name Service Caching Daemon (nscd).
289 New configure option --disable-build-nscd avoids building nscd itself;
290 this is the default if --disable-nscd is used.
292 * Improved support for cross-compilation, including cross-testing and
293 bootstrap builds without a previously built glibc.
295 * Several testsuite tests are now able to test multiple IFUNC variants of an
296 interface, rather than just testing the one that would be chooen by
297 default.
299 * New configure options --with-bugurl and --with-pkgversion, for
300 distributors to use to embed their bug-reporting and package version
301 information in --help and --version output.
303 * The ttyname and ttyname_r functions on Linux now fall back to searching for
304 the tty file descriptor in /dev/pts or /dev if /proc is not available. This
305 allows creation of chroots without the procfs mounted on /proc.
307 * The `crypt' function now fails if passed salt bytes that violate the
308 specification for those values. On Linux, the `crypt' function will
309 consult /proc/sys/crypto/fips_enabled to determine if "FIPS mode" is
310 enabled, and fail on encrypted strings using the MD5 or DES algorithm
311 when the mode is enabled.
313 * The `clock_*' suite of functions (declared in <time.h>) is now available
314 directly in the main C library. Previously it was necessary to link with
315 -lrt to use these functions. This change has the effect that a
316 single-threaded program that uses a function such as `clock_gettime' (and
317 is not linked with -lrt) will no longer implicitly load the pthreads
318 library at runtime and so will not suffer the overheads associated with
319 multi-thread support in other code such as the C++ runtime library.
321 * New locales: ayc_PE, doi_IN, ia_FR, mni_IN, nhn_MX, niu_NU, niu_NZ,
322 sat_IN, and szl_PL.
323 \f
324 Version 2.16
326 * The following bugs are resolved with this release:
328 174, 208, 350, 369, 411, 706, 766, 887, 2074, 2541, 2547, 2548, 2550,
329 2551, 2552, 2553, 2554, 2562, 2563, 2565, 2566, 2570, 2576, 2636, 2678,
330 3335, 3440, 3748, 3768, 3866, 3868, 3906, 3976, 3992, 4026, 4108, 4596,
331 4822, 5077, 5461, 5805, 5993, 6471, 6486, 6578, 6649, 6730, 6770, 6794,
332 6884, 6890, 6894, 6895, 6907, 6911, 6959, 7064, 9739, 9902, 10110, 10135,
333 10140, 10153, 10210, 10254, 10346, 10375, 10545, 10716, 10846, 11174,
334 11261, 11322, 11365, 11451, 11494, 11521, 11677, 11837, 11959, 12047,
335 12097, 12193, 12194, 12297, 12298, 12301, 12340, 12354, 12416, 12495,
336 13058, 13223, 13361, 13525, 13526, 13527, 13528, 13529, 13530, 13531,
337 13532, 13533, 13547, 13551, 13552, 13553, 13555, 13556, 13559, 13563,
338 13566, 13576, 13579, 13583, 13592, 13594, 13613, 13618, 13637, 13656,
339 13658, 13673, 13691, 13695, 13704, 13705, 13706, 13718, 13726, 13738,
340 13739, 13743, 13750, 13758, 13760, 13761, 13775, 13786, 13787, 13792,
341 13806, 13824, 13840, 13841, 13844, 13846, 13848, 13851, 13852, 13854,
342 13871, 13872, 13873, 13879, 13882, 13883, 13884, 13885, 13886, 13892,
343 13895, 13908, 13910, 13911, 13912, 13913, 13914, 13915, 13916, 13917,
344 13918, 13919, 13920, 13921, 13922, 13923, 13924, 13926, 13927, 13928,
345 13938, 13941, 13942, 13954, 13955, 13956, 13963, 13967, 13968, 13970,
346 13973, 13979, 13983, 13986, 13996, 14012, 14027, 14033, 14034, 14036,
347 14040, 14043, 14044, 14048, 14049, 14050, 14053, 14055, 14059, 14064,
348 14075, 14080, 14083, 14103, 14104, 14109, 14112, 14117, 14122, 14123,
349 14134, 14153, 14183, 14188, 14199, 14210, 14218, 14229, 14241, 14273,
350 14277, 14278.
352 * Support for the x32 ABI on x86-64 added. The x32 target is selected by
353 configuring glibc with:
354 BUILD_CC='gcc' CC='gcc -mx32' CXX='g++ -mx32'
355 Visit <http://sites.google.com/site/x32abi/> for more x32 ABI info.
356 Implemented by H.J. Lu.
358 * ISO C11 support:
360 + define static_assert
362 + do not declare gets
364 + declare at_quick_exit and quick_exit also for ISO C11
366 + aligned_alloc. NB: The code is deliberately allows the size parameter
367 to not be a multiple of the alignment. This is a moronic requirement
368 in the standard but it is only a requirement on the caller, not the
369 implementation.
371 + timespec_get added
373 + uchar.h support added
375 + CMPLX, CMPLXF, CMPLXL added
377 Implemented by Ulrich Drepper.
379 * Support for the IA-64 has been moved to ports.
381 * Remove support for anything but ELF binary format
383 * Checking versions of poll, ppoll added.
384 Implemented by Ulrich Drepper.
386 * More generic and 64-bit performance optimizations to math functions.
387 Implemented by Ulrich Drepper.
389 * New configure option --enable-obsolete-rpc makes the deprecated RPC
390 headers and functions available at compile time as they were before
391 version 2.14. This option will be removed at some time in the future
392 after the TI-RPC library becomes fully sufficient for the needs of
393 existing applications.
395 * Compatibility code for Linux kernel versions before 2.4 has been removed.
396 Note that glibc is not expected to work with any Linux kernel version
397 before 2.6.
399 * New header <sys/auxv.h> and function getauxval allowing easy access to
400 the AT_* key-value pairs passed from the Linux kernel. The header also
401 defines the HWCAP_* bits associated with the AT_HWCAP key.
403 * New locales: mag_IN
405 * New configure option --enable-systemtap builds SystemTap static probes
406 into libc for setjmp and longjmp and into libpthread for various operations.
407 So far the setjmp/longjmp probes and some of the libpthread probes are
408 provided only for i*86 and x86_64.
409 Implemented by Roland McGrath and Rayson Ho.
411 * Optimized expf for x86-32 and x86-64. Implemented by Liubov Dmitrieva.
413 * More optimized functions for PowerPC. Implemented by Adhemerval Zanella
414 and Will Schmidt.
416 * More optimized functions for SPARC. Implemented by David S. Miller.
418 * Improved support for cross-compilation, especially bootstrap builds
419 without a previously built glibc.
421 * Ports for the TILE-Gx and TILEPro families of processors. Contributed by
422 Chris Metcalf from Tilera.
424 * Support for the old ARM ABI has been removed from ports. Only the EABI is
425 now supported for ARM processors.
427 * The hard-float variant of the ARM EABI now uses /lib/ld-linux-armhf.so.3
428 as the name of the dynamic linker, to distinguish it from the
429 /lib/ld-linux.so.3 dynamic linker used for the base EABI.
431 * Support for CRIS has been removed from ports.
433 * A new class of installed header has been documented for low-level
434 platform-specific functionality. PowerPC added the first instance with a
435 function to provide time base register access. Contributed by Tulio
436 Magno Quites Machado Filho.
438 * ix86 configurations now install header files that are consistent with
439 what x86-64 configurations install. These same header files can be used
440 for -m32, -m64, or -mx32 builds.
441 Contributed by H.J. Lu.
443 * Math library bug fixes. A thorough audit of all open math library bugs was
444 conducted by Joseph Myers. Significant progress was made on many math
445 library bugs resulting in more accurate exceptions and function results.
446 Many thanks to all those that contributed including Andreas Jaeger for his
447 patch review and work on the x87 trigonometric instruction issues.
449 * Timezone data is no longer installed. Timezone-related binaries and scripts
450 will continue to be installed. Users should obtain their timezone data from
451 their distribution provider or from the tzdata package at
452 <ftp://munnari.oz.au/pub/>.
453 \f
454 Version 2.15
456 * The following bugs are resolved with this release:
458 6779, 6783, 9696, 10103, 10709, 11589, 11929, 12403, 12786, 12840, 12847,
459 12868, 12852, 12874, 12885, 12892, 12906, 12907, 12922, 12935, 12962,
460 13007, 13021, 13061, 13062, 13067, 13068, 13085, 13088, 13090, 13092,
461 13096, 13114, 13118, 13123, 13134, 13138, 13147, 13150, 13166, 13179,
462 13185, 13189, 13192, 13268, 13276, 13282, 13291, 13305, 13328, 13335,
463 13337, 13344, 13358, 13367, 13413, 13416, 13423, 13439, 13446, 13472,
464 13484, 13506, 13515, 13523, 13524, 13538, 13540
466 * New program pldd to list loaded object of a process
467 Implemented by Ulrich Drepper.
469 * Add nss_db support back to glibc. No more dependency on Berkeley db
470 and support for initgroups lookups.
471 Implemented by Ulrich Drepper.
473 * Optimized strcpy, strncpy, stpcpy, stpncpy for SSE2 and SSSE3 on x86-32.
474 Contributed by HJ Lu.
476 * Improved strcpy, strncpy, stpcpy, stpncpy for SSE2 and SSSE3 on x86-64.
477 Contributed by HJ Lu.
479 * Optimized strcat, strncat on x86-64 and optimized wcscmp, wcslen, strnlen
480 on x86-32 and x86-64.
481 Contributed by Liubov Dmitrieva.
483 * Optimized strchr and strrchr for SSE on x86-32.
484 Contributed by Liubov Dmitrieva.
486 * Optimized memchr, memrchr, rawmemchr, memcmp, wmemcmp, wcschr, wcscpy
487 for x86-64 and x86-32.
488 Contributed by Liubov Dmitrieva.
490 * New interfaces: scandirat, scandirat64
491 Implemented by Ulrich Drepper.
493 * Checking versions of FD_SET, FD_CLR, and FD_ISSET added.
494 Implemented by Ulrich Drepper.
496 * nscd now also caches the netgroup database.
497 Implemented by Ulrich Drepper.
499 * Integrate libm with gcc's -ffinite-math-only option.
500 Implemented by Ulrich Drepper.
502 * Lots of generic, 64-bit, and x86-64-specific performance optimizations
503 to math functions. Implemented by Ulrich Drepper.
505 * Optimized strcasecmp and strncasecmp for AVX on x86-64.
506 Implemented by Ulrich Drepper.
508 * New Linux interfaces: process_vm_readv, process_vm_writev
510 * Optimized strcasecmp and strncasecmp for SSSE3 and SSE4.2 on x86-32.
511 Implemented by Ulrich Drepper.
513 * Optimized nearbyint and strcasecmp for PPC.
514 Implemented by Adhemerval Zanella.
516 * New locales: bho_IN, unm_US, es_CU, ta_LK
517 \f
518 Version 2.14
520 * The following bugs are resolved with this release:
522 386, 6420, 7101, 9730, 9732, 9809, 10138, 10149, 10157, 11099, 11257,
523 11258, 11487, 11532, 11558, 11578, 11634, 11653, 11668, 11697, 11724,
524 11781, 11799, 11820, 11837, 11857, 11869, 11892, 11895, 11901, 11945,
525 11947, 11952, 11987, 12052, 12083, 12158, 12178, 12200, 12346, 12350,
526 12393, 12420, 12432, 12445, 12449, 12453, 12454, 12460, 12469, 12489,
527 12509, 12510, 12511, 12518, 12527, 12541, 12545, 12551, 12582, 12583,
528 12587, 12597, 12601, 12611, 12625, 12626, 12631, 12650, 12653, 12655,
529 12660, 12671, 12681, 12684, 12685, 12711, 12713, 12714, 12717, 12723,
530 12724, 12734, 12738, 12746, 12766, 12775, 12777, 12782, 12788, 12792,
531 12795, 12811, 12813, 12814, 12841
533 * The RPC implementation in libc is obsoleted. Old programs keep working
534 but new programs cannot be linked with the routines in libc anymore.
535 Programs in need of RPC functionality must be linked against TI-RPC.
536 The TI-RPC implementation is IPv6 enabled and there are other benefits.
538 Visible changes of this change include (obviously) the inability to link
539 programs using RPC functions without referencing the TI-RPC library and the
540 removal of the RPC headers from the glibc headers.
541 Implemented by Ulrich Drepper.
543 * New Linux interfaces: clock_adjtime, name_to_handle_at, open_by_handle_at,
544 syncfs, setns, sendmmsg
546 * New locales: os_RU, bem_ZA, en_ZA, ff_SN, sw_KE, sw_TZ, lb_LU, wae_CH,
547 yue_HK, lij_IT, mhr_RU
549 * New encodings: CP770, CP771, CP772, CP773, CP774
551 * New program sotruss to trace calls through PLTs
552 Implemented by Ulrich Drepper.
554 * The malloc hook implementation is marked deprecated and will be removed
555 from the default implementation in the next version. The design never
556 worked ever since the introduction of threads. Even programs which do
557 not create threads themselves can use multiple threads created internally.
558 \f
559 Version 2.13
561 * The following bugs are resolved with this release:
563 3268, 6812, 7066, 10085, 10484, 10563, 10851, 11149, 11155, 11577, 11611,
564 11640, 11655, 11701, 11840, 11856, 11883, 11903, 11904, 11968, 11979,
565 12005, 12037, 12067, 12077, 12078, 12092, 12093, 12107, 12108, 12113,
566 12140, 12159, 12167, 12191, 12194, 12201, 12204, 12205, 12207, 12348,
567 12378, 12394, 12397
569 * New Linux interfaces: prlimit, prlimit64, fanotify_init, fanotify_mark
571 * POWER7 optimizations: memset, memcmp, strncmp
573 * New optimized string functions for x86-64: strnlen (SSE2),
574 strcasecmp (SSE2, SSSE3, SSE4.2), strncasecmp (SSE2, SSSE3, SSE4.2)
575 Implemented by Ulrich Drepper.
576 \f
577 Version 2.12
579 * The following bugs are resolved with this release:
581 3662, 4457, 5553, 10162, 10401, 10414, 10554, 10824, 10864, 10915,
582 10918, 10936, 10939, 10958, 10968, 10969, 10972, 10992, 11000, 11001,
583 11007, 11010, 11027, 11039, 11040, 11041, 11043, 11046, 11056, 11070,
584 11093, 11115, 11125, 11126, 11127, 11134, 11141, 11149, 11183, 11184,
585 11185, 11186, 11187, 11188, 11189, 11190, 11191, 11192, 11193, 11194,
586 11200, 11230, 11235, 11242, 11254, 11258, 11271, 11272, 11276, 11279,
587 11287, 11292, 11319, 11332, 11333, 11387, 11389, 11390, 11394, 11397,
588 11410, 11438, 11449, 11470, 11471, 11520, 11537, 11538, 11571
590 * New interfaces: pthread_getname_np, pthread_setname_np
592 * New Linux interface: recvmmsg
594 * STT_GNU_IFUNC implemented for Sparc by David Miller.
596 * The dynamic linker now recognizes supported ABI versions from the
597 EI_ABIVERSION field in the ELF header.
598 Implemented by Ulrich Drepper.
600 * New NIS mode selector ADJUNCT_AS_SHADOW. The passwd.adjunct.byname table
601 will not be used to fill in password fields in the passwd.byname replies.
602 Instead it is used to synthesize the shadow.byname table, should it be
603 missing. This is a useful mode in some installations involving Solaris.
604 Implemented by Ulrich Drepper.
606 * New locales: kok_IN, sq_MK, cv_RU
607 \f
608 Version 2.11
610 * The following bugs are resolved with this release:
612 3270, 7094, 9924, 9986, 10011, 10085, 10107, 10159, 10162, 10166, 10183,
613 10195, 10196, 10200, 10203, 10207, 10211, 10213, 10217, 10221, 10229,
614 10262, 10286, 10312, 10315, 10319, 10349, 10360, 10391, 10402, 10416,
615 10418, 10422, 10425, 10446, 10448, 10452, 10540, 10553, 10560, 10564,
616 10609, 10643, 10692, 10713, 10717, 10730, 10731, 10742, 10780, 10784,
617 10789, 10817, 10823, 10840, 10847
619 * New interfaces: execvpe, pthread_sigqueue, mkstemps, mkstemps64, mkostemps,
620 mkostemps64
621 Implemented by Ulrich Drepper.
623 * Checking version of longjmp added that fails if an uninitialized stack
624 frame would be created. Implemented by Ulrich Drepper.
626 * STT_GNU_IFUNC is now supported in static executables.
627 Implemented by H.J. Lu.
629 * STT_GNU_IFUNC implemented for PPC by Alan Modra.
631 * New optimized string functions for x86-64: strstr, strcasestr, memcmp,
632 strcspn, strpbrk, strspn, strcpy, stpcpy, strncpy, strcmp (SSE2, SSE4.2),
633 strncmp (SSE2, SSE4.2), strchr (SSE4.2), strrchr (SSE4.2).
634 Contributed by H.J. Lu.
636 strlen, rawmemchr, strcmp (SSSE3), strncmp (SSSE3).
637 Implemented by Ulrich Drepper.
639 * New optimized string functions for x86: strlen, strcspn, strspn, strpbrk,
640 strstr, strcasestr.
641 Contributed by H.J. Lu.
643 * Support for fma instruction in AVX on x86-64.
644 Implemented by H.J. Lu and Ulrich Drepper.
646 * AVX support in x86-64 auditing support in ld.so.
647 Implemented by H.J. Lu.
649 * STB_GNU_UNIQUE support added.
650 Implemented by Ulrich Drepper.
652 * Implement second fallback mode for optimized DNS lookup for even more
653 broken environments. If two requests from the same port are not
654 handled correctly close the socket and open a new one before sending
655 the second request. The 'single-request-reopen' option in /etc/resolv.conf
656 can be used to select this mode right away, instead of rediscovering the
657 necessity is every process again.
658 Implemented by Ulrich Drepper.
660 * New resolver flag RES_USE_DNSSEC to enable use of verified lookup.
661 Implemented by Adam Tkac.
663 * Optimized iconv conversions for S390x.
664 Implemented by Andreas Krebbel.
666 * Using condvars with PI mutexes is now more efficient due to kernel
667 support for requeueing to PI futexes. NPTL support added for x86-64.
668 Implemented by Ulrich Drepper.
670 * New locales: ps_AF, my_MM
671 \f
672 Version 2.10
674 * The following bugs are resolved with this release:
676 697, 5381, 5807, 6411, 6545, 7040, 7058, 7067, 7080, 7083, 7095, 7098,
677 9677, 9694, 9697, 9701, 9704, 9705, 9706, 9720, 9726, 9730, 9733, 9736,
678 9741, 9750, 9753, 9759, 9781, 9791, 9793, 9823, 9833, 9844, 9880, 9881,
679 9891, 9893, 9895, 9913, 9916, 9920, 9948, 9955, 9957, 9963, 9985, 10052,
680 10069, 10086, 10087, 10090, 10092, 10093, 10100, 10118, 10128
682 * New interfaces: preadv, preadv64, pwritev, pwritev64, malloc_info
683 Implemented by Ulrich Drepper.
685 * New Linux interfaces: accept4, fallocate, fallocate64.
686 Implemented by Ulrich Drepper.
688 * Correct declarations of string function when used in C++ code. This
689 could lead to compile errors for invalid C++ code.
691 * XPG7/POSIX 2008 compilation environment. Many GNU-specific functions are
692 now in POSIX.
694 * New POSIX 2008 interface: psiginfo
695 Implemented by Ulrich Drepper.
697 * New ISO C++1x interfaces: quick_exit, at_quick_exit
698 Implemented by Ulrich Drepper.
700 * Support for selecting between multiple function definitions at runtime
701 using STT_GNU_IFUNC symbols. Implemented by Ulrich Drepper.
703 * The libcrypt library can now use the hash function implementations in
704 NSS. Implemented by Ulrich Drepper.
706 * The malloc implementation can be compiled to be less memory efficient
707 but higher performing in multi-threaded programs.
708 Implemented by Ulrich Drepper.
710 * New locales: nan_TW@latin, ks_IN
712 * Faster strlen, strchr, strchrnul, strrchr, memchr, and rawmemchr for x86-64.
713 Implemented by Ulrich Drepper.
715 * Extended printf hook support. It is possible to use user-defined types
716 and extend existing format specifiers.
717 Implemented by Ulrich Drepper.
719 * Handling for group shadow files has been added.
720 Implemented by Ulrich Drepper.
722 * DNS IPv4-IPv6 parallel lookup now deals better with broken DNS
723 servers (the case, e.g., for some people using the built-in DNS
724 server in ADSL modems/routers). There is a once-per-process timeout
725 in case of a broken server. To avoid it, users can run nscd or put
726 'options single-request' in /etc/resolv.conf.
727 Implemented by Ulrich Drepper.
728 \f
729 Version 2.9
731 * The following bugs are resolved with this release:
733 3406, 5209, 5210, 5381, 5794, 5814, 5911, 6428, 6438, 6442, 6447, 6461,
734 6472, 6505, 6544, 6589, 6612, 6634, 6653, 6654, 6657, 6698, 6712, 6713,
735 6719, 6723, 6724, 6740, 6763, 6771, 6790, 6791, 6817, 6824, 6839, 6843,
736 6845, 6856, 6857, 6860, 6867, 6875, 6919, 6920, 6942, 6947, 6955, 6966,
737 6968, 6974, 6980, 6995, 7008, 7009, 7029
739 * Unified lookup for getaddrinfo: IPv4 and IPv6 addresses are now looked
740 up at the same time. Implemented by Ulrich Drepper.
742 * TLS descriptors for LD and GD on x86 and x86-64.
743 Implemented by Alexandre Oliva.
745 * getaddrinfo now handles DCCP and UDPlite.
746 Implemented by Ulrich Drepper.
748 * New fixed-size conversion macros: htobe16, htole16, be16toh, le16toh,
749 htobe32, htole32, be32toh, le32toh, htobe64, htole64, be64toh, le64toh.
750 Implemented by Ulrich Drepper.
752 * New implementation of memmem, strstr, and strcasestr which is O(n).
753 Implemented by Eric Blake.
755 * New Linux interfaces: inotify_init1, dup3, epoll_create1, pipe2
757 * Implement "e" option for popen to open file descriptor with the
758 close-on-exec flag set. Implemented by Ulrich Drepper.
760 * Implement "b" mode for fmemopen. In this mode writes writes don't
761 implicitly add a NUL byte and seeks from the end of the buffer really
762 use the buffer end, not the string length as the basis.
763 Implemented by Ulrich Drepper.
765 * Many functions, exported and internal, now atomically set the close-on-exec
766 flag when run on a sufficiently new kernel. Implemented by Ulrich Drepper.
768 * Sorting rules for some Indian languages (Kannada, Gurumukhi, Telugu,
769 Sinhala)
770 Implemented by Pravin Satpute.
772 * New locales: sd_IN, sd_IN@devanagari, ks_IN@devanagari, ht_HT, en_AG, nl_AW.
773 \f
774 Version 2.8
776 * The following bugs are resolved with this release:
778 2549, 3112, 4314, 4407, 4997, 5012, 5040, 5112, 5204, 5208, 5209, 5220,
779 5222, 5224, 5225, 5237, 5238, 5240, 5245, 5277, 5346, 5375, 5378, 5382,
780 5424, 5427, 5428, 5435, 5436, 5439, 5441, 5442, 5443, 5451, 5452, 5454,
781 5455, 5463, 5464, 5465, 5475, 5477, 5478, 5520, 5541, 5545, 5553, 5600,
782 5602, 5607, 5614, 5627, 5628, 5736, 5737, 5741, 5753, 5760, 5762, 5768,
783 5774, 5777, 5778, 5779, 5786, 5790, 5818, 5854, 5857, 5903, 5939, 5979,
784 5983, 5995, 5998, 6004, 6007, 6020, 6021, 6024, 6040, 6042
786 * New locales: bo_CN, bo_IN, shs_CA.
788 * New encoding: HP-ROMAN9, HP-GREEK8, HP-THAI8, HP-TURKISH8.
790 * Sorting rules for some Indian languages (Devanagari and Gujarati).
791 Implemented by Pravin Satpute.
793 * IPV6 addresses in /etc/resolv.conf can now have a scope ID
795 * nscd caches now all timeouts for DNS entries
796 Implemented by Ulrich Drepper.
798 * nscd is more efficient and wakes up less often.
799 Implemented by Ulrich Drepper.
801 * More checking functions: asprintf, dprintf, obstack_printf, vasprintf,
802 vdprintf, and obstack_vprintf.
803 Implemented by Jakub Jelinek.
805 * Faster memset for x86-64.
806 Implemented by Harsha Jagasia and H.J. Lu.
808 * Faster memcpy on x86.
809 Implemented by Ulrich Drepper.
811 * ARG_MAX is not anymore constant on Linux. Use sysconf(_SC_ARG_MAX).
812 Implemented by Ulrich Drepper.
814 * Faster sqrt and sqrtf implemention for some PPC variants.
815 Implemented by Steven Munroe.
816 \f
817 Version 2.7
819 * The following bugs are resolved with this release:
821 4125, 4126, 4178, 4359, 4407, 4512, 4514, 4525, 4554, 4556, 4557, 4566,
822 4582, 4586, 4588, 4599, 4610, 4647, 4702, 4705, 4726, 4745, 4772, 4773,
823 4775, 4776, 4792, 4813, 4814, 4816, 4833, 4858, 4860, 4896, 4905, 4925,
824 4936, 4937, 4938, 4941, 4946, 4963, 4972, 5010, 5028, 5043, 5058, 5063,
825 5071, 5103, 5104, 5112, 5113, 5184, 5186
827 * More checking functions: fread, fread_unlocked, open*, mq_open.
828 Implemented by Jakub Jelinek and Ulrich Drepper.
830 * Extend fortification to C++. Implemented by Jakub Jelinek.
832 * Implement 'm' modifier for scanf. Add stricter C99/SUS compliance
833 by not recognizing 'a' as a modifier when those specs are requested.
834 Implemented by Jakub Jelinek.
836 * PPC optimizations to math and string functions.
837 Implemented by Steven Munroe.
839 * New interfaces: mkostemp, mkostemp64. Like mkstemp* but allow additional
840 options to be passed. Implemented by Ulrich Drepper.
842 * More CPU set manipulation functions. Implemented by Ulrich Drepper.
844 * New Linux interfaces: signalfd, eventfd, eventfd_read, and eventfd_write.
845 Implemented by Ulrich Drepper.
847 * Handle private futexes in the NPTL implementation.
848 Implemented by Jakub Jelinek and Ulrich Drepper.
850 * Add support for O_CLOEXEC. Implement in Hurd. Use throughout libc.
851 Implemented by Roland McGrath and Ulrich Drepper.
853 * Linux/x86-64 vDSO support. Implemented by Ulrich Drepper.
855 * SHA-256 and SHA-512 based password encryption.
856 Implemented by Ulrich Drepper.
858 * New locales: ber_DZ, ber_MA, en_NG, fil_PH, fur_IT, fy_DE, ha_NG, ig_NG,
859 ik_CA, iu_CA, li_BE, li_NL, nds_DE, nds_NL, pap_AN, sc_IT, tk_TM, ug_CN,
860 yo_NG.
862 + New iconv modules: MAC-CENTRALEUROPE, ISO-8859-9E, KOI8-RU.
863 Implemented by Ulrich Drepper.
864 \f
865 Version 2.6
867 * The following bugs are resolved with this release:
869 3156, 3213, 3285, 3291, 3306, 3313, 3320, 3322, 3325, 3326, 3334, 3348,
870 3352, 3363, 3369, 3426, 3427, 3429, 3451, 3458, 3465, 3480, 3483, 3493,
871 3514, 3515, 3559, 3632, 3664, 3673, 3674, 3745, 3747, 3818, 3840, 3842,
872 3851, 3855, 3884, 3885, 3902, 3905, 3919, 3944, 3954, 3955, 3957, 3991,
873 3995, 3996, 4024, 4040, 4069, 4070, 4074, 4076, 4096, 4101, 4102, 4114,
874 4130, 4131, 4181, 4276, 4306, 4342, 4344, 4349, 4364, 4368, 4381, 4392,
875 4403, 4405, 4406, 4411, 4438, 4439, 4455, 4456, 4465, 4512, 4514, 4586,
876 4702, 4858
878 * New Linux interfaces: epoll_pwait, sched_getcpu.
880 * New generic interfaces: strerror_l.
882 * nscd can now cache the services database. Implemented by Ulrich Drepper.
883 \f
884 Version 2.5
886 * The following bugs are resolved with this release:
888 39, 68, 192, 352, 388, 531, 935, 1006, 1201, 1203, 1386, 1782, 1783, 1784,
889 1785, 1786, 1787, 1951, 1974, 1996, 2072, 2098, 2125, 2134, 2158, 2182,
890 2349, 2376, 2386, 2389, 2415, 2418, 2420, 2423, 2450, 2451, 2466, 2472,
891 2473, 2477, 2498, 2499, 2501, 2502, 2505, 2507, 2508, 2509, 2517, 2526,
892 2569, 2571, 2592, 2611, 2625, 2632, 2644, 2662, 2680, 2683, 2684, 2693,
893 2695, 2703, 2734, 2751, 2764, 2766, 2775, 2792, 2821, 2823, 2832, 2841,
894 2843, 2883, 2892, 2908, 2914, 2926, 2961, 2978, 2980, 2987, 2997, 2998,
895 3013, 3018, 3034, 3040, 3044, 3123, 3124, 3137, 3138, 3143, 3155, 3189,
896 3225, 3251, 3252, 3253, 3273
898 * For Linux, the sorting of addresses returned by getaddrinfo now also
899 handles rules 3, 4, and 7 from RFC 3484. I.e., all rules are handled.
900 Implemented by Ulrich Drepper.
902 * Allow system admin to configure getaddrinfo with the /etc/gai.conf file.
903 Implemented by Ulrich Drepper.
905 * New Linux interfaces: splice, tee, sync_file_range, vmsplice.
907 * New iconv module for MIK. Contributed by Alexander Shopov.
909 * For sites with broken group and/or passwd database, the auto-propagate
910 option of nscd can prevent creating ID lookup entries from the results
911 of a name lookup and vice versa. This usually is no problem but some
912 site might have problems with the default behavior.
913 Implemented by Ulrich Drepper.
915 * Iterating over entire database in NIS can be slow. With the
916 SETENT_BATCH_READ option in /etc/default/nss a system admin can decide
917 to trade time for memory. The entire database will be read at once.
918 Implemented by Ulrich Drepper.
920 * The interfaces introduced in RFC 3542 have been implemented by
921 Ulrich Drepper.
923 * Support for the new ELF hash table format was added by Ulrich Drepper.
925 * Support for priority inheritance mutexes added by Jakub Jelinek and
926 Ulrich Drepper.
928 * Support for priority protected mutexes added by Jakub Jelinek.
930 * New locales: nr_ZA, pa_PK, ca_AD, ca_FR, ca_IT, el_CY, tr_CY, as_IN,
931 or_IN, csb_PL, fy_NL, sr_ME.
932 \f
933 Version 2.4
935 * More overflow detection functions.
937 * New iconv converters for IBM1025, IBM1122, IBM1137, IBM1153,
938 IBM1154, IBM1155, IBM1156, IBM1157, and IBM1158 contributed by Jiro Sekiba.
940 More converters for IBM803, IBM901, IBM902, IBM921, IBM1008, IBM1097,
941 IBM1112, IBM1123, IBM1130, IBM1140, IBM1141, IBM1142, IBM1143, IBM1144,
942 IBM1145, IBM1146, IBM1147, IBM1148, IBM1149, IBM1166, IBM1167, IBM4517,
943 IBM4899, IBM4909, IBM4971, IBM5347, IBM9030, IBM9066, IBM9448, IBM12712,
944 IBM16804, IBM1364, IBM1371, IBM1388, IBM1390, and IBM1399 contributed
945 by Masahide Washizawa.
947 * It is now possible to install audit libraries for the dynamic linker using
948 LD_AUDIT. Implemented by Ulrich Drepper.
950 * The LinuxThreads add-on, providing pthreads on Linux 2.4 kernels, is no
951 longer supported. The new NPTL implementation requires Linux 2.6 kernels.
952 For a libc and libpthread that works well on Linux 2.4 kernels, we
953 recommend using the stable 2.3 branch.
955 * The new function open_wmemstream acts like open_memstream,
956 but uses a wchar_t wide character buffer.
958 * The new function ppoll is an improved version of poll, similar to pselect.
960 * New interfaces: fdopendir, openat, fstatat, fchmodat, fchownat,
961 futimesat, faccessat, mkdirat, mkfifoat, mknodat,
962 renameat, unlinkat, linkat, symlinkat, readlinkat.
964 * New Linux kernel system calls: unshare,
965 inotify_init, inotify_add_watch, inotify_rm_watch.
967 * The euidaccess function is now also known by the alias eaccess,
968 for compatibility with some other systems.
970 * Timezone data updated to 2006b version.
971 \f
972 Version 2.3.6
974 * The following bugs are resolved with this release:
976 38, 253, 549, 622, 653, 721, 758, 851, 877, 915, 934, 955, 961,
977 1016, 1037, 1076, 1079, 1080, 1081, 1082, 1083, 1084, 1085, 1086,
978 1087, 1088, 1090, 1091, 1092, 1093, 1094, 1095, 1096, 1097, 1098,
979 1099, 1100, 1101, 1102, 1103, 1104, 1105, 1106, 1107, 1108, 1109,
980 1110, 1111, 1112, 1113, 1125, 1137, 1138, 1249, 1250, 1251, 1252,
981 1253, 1254, 1350, 1358, 1394, 1438, 1498, 1534
983 Visit <http://sources.redhat.com/bugzilla/> for the details of each bug.
985 * As of this release, GCC 4 can be used to compile the C Library.
987 * Timezone data updated to 2005m version.
988 \f
989 Version 2.3.5
991 * The following bugs are resolved with this release:
993 284, 592, 602, 626, 633, 640, 650, 661, 671, 681, 693, 700, 710, 719,
994 722, 723, 725, 726, 727, 728, 729, 730, 731, 732, 733, 734, 735, 736,
995 737, 738, 739, 740, 741, 742, 743, 744, 745, 765, 767, 768, 769, 776,
996 777, 787, 821, 822, 823, 825
998 Visit <http://sources.redhat.com/bugzilla/> for the details of each bug.
999 \f
1000 Version 2.3.4
1002 * Support for RFC 3678. Real implementations exist only for Linux so far.
1003 Implemented by Ulrich Drepper.
1005 * nscd can now cache entries persistently. Expiring entries are reloaded.
1006 For speedups the cache can be shared in memory with client processes.
1007 Implemented by Ulrich Drepper.
1009 * nscd can now perform SELinux checks.
1010 Implemented by Matthew Rickard <mjricka@epoch.ncsc.mil>.
1012 * getaddrinfo queries are now cached. Canonical name lookup is performed
1013 efficiently.
1014 Implemented by Ulrich Drepper.
1016 * The nothrow function attribute is used when headers are used by gcc when
1017 compiling C code. This can avoid significant amounts of exception
1018 handling data.
1020 * The malloc functions perform more error checking and are stricter when
1021 it comes to reacting on errors. The default action is to terminate
1022 the process after showing an error message. Implemented by Ulrich Drepper.
1024 * Reverse lookups of IPv6 addresses does not use bit string or .ip6.int
1025 lookups anymore unless explicitly requested. Implemented by Ulrich Drepper.
1027 * Namespaces in ld.so are implemented. DSOs can be loaded in separate
1028 namespaces using the new function dlmopen(). This feature is of course,
1029 like most other dynamic loading functionality, not available in statically
1030 linked applications. Implemented by Ulrich Drepper.
1032 * Low-overhead boundary checking variants of string and some stdio functions
1033 were added. These are to be used in conjunction with a gcc patch by
1034 Jakub Jelinek which adds calls to these functions if possible.
1035 Implemented by Jakub Jelinek and Ulrich Drepper.
1037 * Old code for several operating systems and machine architectures that
1038 have not been in working condition in a long time have been removed from
1039 the main source tree maintained by the GNU C Library's maintainers.
1040 These files are now reside in the separate `ports' source module
1041 that is usable as an add-on when building the library.
1042 \f
1043 Version 2.3.3
1045 * New functions `dladdr1' and `dlinfo' in <dlfcn.h> provide more ways to
1046 interrogate the dynamic linker, compatible with the Solaris interface.
1048 * ELF thread-local storage support (TLS) now works on PowerPC and PowerPC64;
1049 implemented by Paul Mackerras, Steven Munroe, and Roland McGrath.
1051 * getifaddrs now uses the netlink interface on Linux to get its information.
1052 Implemented by Thorsten Kukuk.
1054 * getaddrinfo now implements AI_V4MAPPED, AI_ALL, and AI_ADDRCONF.
1055 Implemented by Ulrich Drepper.
1057 * support for non-executable stacks on x86 has been added. Changes mostly
1058 by Roland McGrath.
1060 * regex is now much faster for multibyte locales. Changes by Jakub Jelinek
1061 and Ulrich Drepper.
1063 * getaddrinfo now performs destination address selection according to
1064 RFC 3484.
1065 \f
1066 Version 2.3.2
1068 * Thread-safe interfaces for many functions that access locale data
1069 were added in version 2.3, but these features were omitted from NEWS.
1070 Many functions have variants with an `_l' suffix that take a `locale_t'
1071 object as a parameter rather than consulting the current locale.
1072 The new functions `newlocale', `duplocale', and `freelocale' in <locale.h>
1073 create and maintain `locale_t' objects. Additionally, the new function
1074 `uselocale' sets "the current locale" (as used by functions not so
1075 parameterized) set for an individual thread. These features were added
1076 in version 2.3, implemented by Ulrich Drepper and Roland McGrath.
1078 * The functions getresuid, getresgid, setresuid, and setresgid, which
1079 have long been available on Linux, are now declared in <unistd.h>
1080 and are now also available on the Hurd.
1082 * ELF thread-local storage support (TLS) now works on x86-64.
1084 * The new dynamic string token $LIB is expanded in shared library names.
1085 This normally expands to lib, but on some 64-bit platforms to lib64 instead.
1087 * Aldy Hernandez contributed complete software floating point support for
1088 PowerPC machines with no FPU.
1090 * fexecve is implemented on Linux.
1092 * The `btowc' function should work at least twice as fast due to
1093 specialized callbacks in the iconv modules. Implemented by Bruno Haible.
1095 * With approriate thread add-ons cancelable functions are now implemented
1096 in libc.so as well. No need to call the function in libpthread. This
1097 change allowed to finally disable the incorrect and expensive handling
1098 of weak definition in ld.so.
1100 * Yet more PLT entries in libc.so have been removed. We finally arrived
1101 at the bare minimum. Startup times improved appropriately.
1103 * Support for the new Linux/x86 system call interface was added. The
1104 AT_SYSINFO auxiliary vector entry is recognized and handled.
1105 \f
1106 Version 2.3
1108 * Masahide Washizawa contributed iconv modules for IBM1163 and IBM1164
1109 charsets.
1111 * iconv (the program and the interface) now accepts empty names (excluding
1112 options like //TRANSLIT) to mean "use charset of current locale".
1114 * localedef can now transliterate characters in strings which are not in
1115 the provided charmap. The information from the input locale is used.
1117 * Prelinking support was added for ELF targets. This requires additional
1118 tools and recent versions of the GNU binutils. Contributed by Jakub Jelinek.
1120 * Read-only stdio streams now use mmap to speed up operation by eliminating
1121 copying and buffer underflows. To use add 'm' to the mode string of
1122 the fopen/fdopen/freopen call. Implemented by Ulrich Drepper.
1124 * The malloc functions were completely rewritten by Wolfram Gloger based
1125 on Doug Lea's malloc-2.7.0.c.
1127 * Isamu Hasegawa contributed a completely new and POSIX-conformant
1128 implementation of regex.
1130 * Bruno Haible upgraded the iconv and locale implementation to support
1131 Unicode 3.2.
1133 * Contents of the LC_* and LANG environment variables in the CEN style are
1134 not recognized anymore. It never was used. Change by Ulrich Drepper.
1136 * The runtime (ld.so, libc, libpthread for Linux) now can handle the ELF
1137 thread-local storage (TLS) ABI on some platforms.
1138 Changes by Ulrich Drepper. SH support by Kaz Kojima.
1140 * Bruno Haible contributed iconv converters for ISO-2022-JP-3, SHIFT JIS-X0213,
1141 EUC-JISX0213, and TSCII.
1143 * New header <ifaddrs.h> with functions `getifaddrs' and `freeifaddrs':
1144 BSD-compatible interface for getting all network interface addresses.
1145 Implementation for IPv4 by Roland McGrath.
1147 * Loading of locale data is faster due to the introduction of a locale
1148 archive. Implemented by Roland McGrath and Ulrich Drepper.
1150 * Startup times are significantly reduced by not using exported functions
1151 inside the library itself. Changes by Jakub Jelinek, Roland McGrath,
1152 and Ulrich Drepper.
1154 * Steven Munroe contributed a port to PowerPC64/Linux.
1155 \f
1156 Version 2.2.6
1158 * The Hurd now uses the GNU libio implementation of stdio rather than the
1159 old GNU stdio implementation, and uses a new ABI (libc.so.0.3).
1161 * The Hurd on x86 now has the `ioperm' function and <sys/io.h> header file
1162 with the same behavior as the Linux system call of the same name.
1163 \f
1164 Version 2.2.5
1166 * Stephen Moshier implemented log2, log10, powl and cbrtl for the
1167 128-bit long double format.
1169 * Masahide Washizawa contributed iconv modules for IBM1132, IBM1133, IBM1160,
1170 IBM1161, and IBM1162 charsets.
1172 * Andreas Jaeger contributed a port to x86-64/Linux.
1174 * Peter Bruin contributed a port to PowerPC/Hurd.
1176 * libc functions using I/O streams now can handle wide-oriented streams
1177 as well.
1179 * optimizations in the dynamic linker. Binaries created by recent binutils
1180 versions start up quicker due to reduced time spent on relocations.
1182 * Support for use of gcc3 added by Jakub Jelinek and HJ Lu.
1183 \f
1184 Version 2.2.4
1186 * Stephen Moshier implemented cosh, expm1, log1p, acos, sinh, tanh,
1187 asinh, atanh, j0 for the 128-bit long double format.
1189 * Bruno Haible updated all the code handling Unicode in some form to
1190 support Unicode 3.1.
1192 * Speed of regex for single-byte locales is back to previous levels.
1193 Patch by Isamu Hasegawa.
1195 * Alpha, SPARC, and IA-64 now also using floating stacks.
1197 * Startup time of internationalized applications greatly improved through
1198 iconv cache. Use iconvconfig to generate the cache file.
1199 Contributed by Ulrich Drepper.
1201 * The IA-64 specific part of ld.so was rewritten to eliminate some pretty
1202 severe performance problems. Patch by David Mosberger.
1204 * The Hurd port got a lot more functionality like AIO, various stdio
1205 extensions, etc. Mainly done by Roland McGrath.
1207 * mtrace can now lookup symbols in shared libraries.
1208 \f
1209 Version 2.2.3
1211 * Intel's IA-64 math library is largely integrated. It provides fast and
1212 accurate implementatations for most basic and standard math functions
1213 in float, double, and long double format.
1215 * Stephen Moshier implemented j0, j1, jn, y0, y1, yn, lgamma, erf, erfc,
1216 and asin for the 96-bit long double format and asin, log, tan for the
1217 128-bit long double format.
1219 * The beginning of a last-bit accurate math library by IBM Haifa were added.
1220 The basic double functions exist today. Contributed by Abraham Ziv
1221 <ziv@il.ibm.com>, Moshe Olshansky <olshansk@il.ibm.com>, Ealan Henis
1222 <ealan@il.ibm.com>, and Anna Reitman <reitman@il.ibm.com>.
1224 * An asynchronous name lookup library was added. The interface is designed
1225 after POSIX AIO. The proposal was circulated beforehand to get comments.
1226 No negative ones came in. Implemented by Ulrich Drepper.
1228 * Port to S390/64bit contributed by Martin Schwidefsky
1229 <schwidefsky@de.ibm.com>.
1231 * David Mosberger <davidm@hpl.hp.com> implemented the setcontext family
1232 of functions for Linux/IA-64.
1234 * The RPC code is now thread safe. Threads can now use the same service
1235 of different services at the same time. Patch by Eric Norum
1236 <eric.norum@usask.ca> with some help by Ulrich Drepper.
1238 * Martin Schwidefsky <schwidefsky@de.ibm.com> implemented the setcontext
1239 family of functions for Linux/S390.
1241 * Ulrich Drepper <drepper@redhat.com> implemented the setcontext family
1242 of functions for Linux/x86.
1244 * Port to Linux/CRIS contributed by Axis Communications.
1245 \f
1246 Version 2.2.2
1248 * Lots of headers were cleaned up. Using the tool in the conform/ subdir
1249 we can now check for namespace violations and missing declarations. The
1250 result is that almost all headers are now Unix-compliant (as defined in
1251 the upcoming XPG6). The negative side is that some programs might need
1252 corrections, too, if they depend on the incorrect form of the headers in
1253 previous versions which defined too many symbols and included too many
1254 other headers.
1256 * regex now handles multibyte character sets correctly.
1257 Contributed by Isamu Hasegawa <isamu@yamato.ibm.com>.
1259 * iconv (the program) does now conform to the upcoming XPG6 and handles
1260 charmaps. Instead of the charset names the path of charmaps can be
1261 provided and the conversion happens based on this data.
1262 Contributed by Ulrich Drepper.
1264 * The locale program now provides detailed information about the installed
1265 locales. While
1267 locale -a
1269 only lists the names of the supported locales
1271 locale -a --verbose
1273 provides details such as country, language, and codeset name.
1274 Contributed by Ulrich Drepper.
1275 \f
1276 Version 2.2.1
1278 * The gencat program now parses the input file according to the charset
1279 selected by the LC_CTYPE category. This is important for stateful
1280 character sets. To make generating catalogs easier there is a way
1281 to overwrite the charset selected by the locale: before the first
1282 message or $ quote line the catalog can contain a line like
1284 $ codeset=ISO-8859-2
1286 to select the charset (ISO-8859-2 in this case).
1288 Implemented by Shinya Hanataka and Ulrich Drepper.
1290 * New codeset conversion modules: IBM-922 (Estonia PC codeset),
1291 IBM-1124 (Ukraine PC codeset), IBM-1129 (Vietnamese PC codeset).
1292 Contributed by Masahide Washizawa <washi@jp.ibm.com>.
1294 * Optimized string functions for Alpha ev6 and ev67 by Richard Henderson
1295 <rth@redhat.com> and Rick Gorton <rick.gorton@alpha-processor.com>.
1297 * The LANGUAGE environment variable is now ignored unless the locale is
1298 changed from the default "C" locale.
1300 * The usual bug fixes.
1301 \f
1302 Version 2.2
1304 * Greg McGary added runtime support for bounds checking using gcc's
1305 new -fbounded-pointers option. ix86 target is complete. PowerPC
1306 is in progress.
1308 * Thorsten Kukuk added secure mode support to nscd.
1310 * The Berkeley db libraries have been removed.
1312 Related, the nss_db module is now in a separate package since it
1313 obviously requires a database library being available.
1315 * Wide character I/O streams implemented by Ulrich Drepper.
1317 * Functions from the extended socket API added by Ulrich Drepper.
1319 * Functions feenableexcept and fedisableexcept to control the
1320 behaviour of individual exceptions have been added by Andreas Jaeger.
1322 * ldconfig program added by Andreas Jaeger and Jakub Jelinek.
1324 * The resolver code has been updated from bind 8.2.3-T5B which supports
1325 threads. The integration was done by Andreas Jaeger, Adam D. Bradley,
1326 and Mark Kettenis.
1328 This change could in some situations effect backward compatibility. Since
1329 now `_res' is a thread-local instead of a global variable, modifying it
1330 in one thread does not have any effect in other threads.
1332 The resolver library was also extended to allow IPv6 as the transport
1333 protocol for the requests. This work was done by Stig Venaas.
1335 * Compatibility code for K&R C compilers has been removed from the
1336 header files. A ISO C compiler is needed to use the library
1337 (conforming to either C89 or C99 standard).
1339 * Complete rewrite of the localedef program to support multibyte character
1340 sets. Implement handling of ISO 14651 and ISO 14652. Rewrite strcoll,
1341 strxfrm, wcscoll, and wcsxfrm functions. Make isw*() functions work.
1342 Implemented by Ulrich Drepper.
1344 Bruno Haible significantly improved the generation and use of the data
1345 structures for the wide character tables.
1347 * Plural handling in gettext implemented by Ulrich Drepper.
1349 * The utmp daemon has been removed.
1351 * The port to MIPS-Linux has been finished by Andreas Jaeger.
1353 * A port to Hitachi SH3 and SH4 has been contributed by Kazumoto Kojima
1354 and Yutaka Niibe.
1356 * POSIX clocks and timers implemented by Kaz Kylheku and Ulrich Drepper.
1358 * POSIX barriers implemented by Kaz Kylheku.
1360 * POSIX spawn function family implemented by Ulrich Drepper.
1362 * POSIX spinlocks are now available.
1364 * Timed wait functions for mutex, rwlock, and semaphores are implemented.
1366 * the configure option --enable-kernel=X.Y.Z allows to strip out
1367 compatibility for kernel versions before X.Y.Z. This is currently only
1368 implemented for Linux.
1370 * the sockaddr_in6 structure changed. The IPv6 working group added a new
1371 field sin6_scope_id. This means that all programs using IPv6 should be
1372 recompiled. Don't expect binary compatibility with previous glibc
1373 versions.
1375 * various conversion modules for IBM character sets contributed by
1376 Masahide Washizawa.
1378 * IA-64 port by Jes Sorensen and HJ Lu.
1379 \f
1380 Version 2.1.3
1382 * bug fixes
1384 \f
1385 Version 2.1.2
1387 * bug fixes
1389 \f
1390 Version 2.1.1
1392 * New ISO C 9x function _Exit, imaxabs, and imaxdiv are added.
1394 * New xdr functions are added; some rpc functions are now 64bit clean.
1396 * Fixed a number of bugs and memory leaks (especially in NIS+ code).
1398 * Fixed known incompatibilities with glibc 2.0.
1400 * New functions lock64, strchrnul, rawmemchr, getutmp and getutmpx.
1402 * Optimized a number of functions (especially the ELF dynamic loader).
1404 * Update timezone data files.
1406 * lots of charmaps corrections
1408 * some new locale definitions and charmaps
1410 \f
1411 Version 2.1
1413 * Richard Henderson corrected size of struct timeval on Linux/Alpha to
1414 conform to POSIX member type requirements. Symbol versions have been
1415 adjusted as needed within the library, and for direct use by applications,
1416 but there is potential for problems if third-party libraries use
1417 struct timeval as part of their interface. This does not present
1418 a problem for X and other "essential" system libraries.
1420 * An additional locale model to support C++ Standard Library locale
1421 model and probably more was implemented by Ulrich Drepper.
1423 * Eric Youngdale and Ulrich Drepper implemented versioning of objects on
1424 symbol level.
1426 * Miles Bader provided the `argp' function family to support hierachical
1427 command line argument parsing, layered on top of getopt.
1429 * strtod accepts new hexadecimal floating-point format from ISO C 9X.
1431 * printf has two new specifiers %a and %A to print hexadecimal flaoting-point
1432 numbers.
1434 * scanf recognizes the %a and %A format for scanning floating point numbers.
1436 * the new headers <stdint.h> and <inttypes.h> from ISO C 9X provides
1437 information and interfaces for the available integer types.
1439 * about 130 new math functions were added to implement the ISO C9x math
1440 library.
1442 * the new header <complex.h> contains definitions of the complex math
1443 functions from ISO C 9X.
1445 * the new header <tgmath.h> defines generic macros to use complex or
1446 real valued functions.
1448 * Thorsten Kukuk provided an implementation for NIS+, securelevel 0, 1 and 2.
1450 * Andreas Jaeger provided a test suite for the math library.
1452 * Mark Kettenis implemented the utmpx interface and an utmp daemon.
1454 * Ulrich Drepper added character set conversion functions (iconv).
1456 * Optimized string functions have been added.
1458 * The localedata addon is now part of glibc.
1460 * An implementation of profiling shared libraries was added by Ulrich Drepper.
1462 * Thorsten Kukuk and Ulrich Drepper provided an implementation for a caching
1463 daemon for NSS (nscd).
1465 Missing a better place here are some numbers on improvements. Under
1466 Linux 2.1.125 un-tar-ing the kernel sources takes
1468 user system wall
1470 using local files 12.19s 6.88s 22.91s
1472 using NIS 13.92s 8.91s 26.34s
1474 using NIS & nscd 10.37s 7.34s 25.30s
1476 using NIS+ 27.57s 30.37s 640.46s
1478 using NIS+ & nscd 10.25s 7.83s 26.51s
1480 using NIS & old nscd [1] 13.83s 8.32s 29.60s
1482 Keep in mind that non-namelookup related operations dominate above times.
1483 It was just a common complain that using NIS+ unpacking the kernel is
1484 horribly slow.
1486 [1] The old nscd implementation is not available anymore since it was
1487 distributed with glibc up to version 2.0.98 and thus is now replaced.
1489 * Tim Waugh provided an implementation of the POSIX.2 wordexp function family.
1491 * Mark Kettenis provided a Hesiod NSS module.
1493 * The ELF dynamic loader knows how to process dynamic string tokens ($ORIGIN
1494 and $PLATFORM) in RPATHs and similar strings (Ulrich Drepper).
1496 * rcmd can now handle netgroups (Dick Streefland).
1498 * A port to the ARM was contributed by Phil Blundell, Pat Beirne and Scott
1499 Bambrough.
1501 * Support for the IPv6 protocol has been added to the socket API, as per the
1502 latest draft standards.
1504 * Support for Linux 2.2 has been added.
1506 * Interface changes relative to the latest 2.0.x release:
1507 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1508 addseverity NEW: Unix98
1509 alphasort64 NEW: LFS
1510 argp_err_exit_status NEW: argp, GNU ext
1511 argp_error NEW: argp, GNU ext
1512 argp_failure NEW: argp, GNU ext
1513 argp_help NEW: argp, GNU ext
1514 argp_parse NEW: argp, GNU ext
1515 argp_program_bug_address NEW: argp, GNU ext
1516 argp_program_version NEW: argp, GNU ext
1517 argp_program_version_hook NEW: argp, GNU ext
1518 argp_state_help NEW: argp, GNU ext
1519 argp_usage NEW: argp, GNU ext
1520 authdes_create NEW: Secure RPC
1521 authdes_getucred NEW: Secure RPC
1522 authdes_pk_create NEW: Secure RPC
1523 backtrace NEW: GNU ext.
1524 backtrace_symbols NEW: GNU ext.
1525 backtrace_symbols_fd NEW: GNU ext.
1526 cacos NEW: ISO C 9x
1527 cacosf NEW: ISO C 9x
1528 cacosh NEW: ISO C 9x
1529 cacoshf NEW: ISO C 9x
1530 cacoshl NEW: ISO C 9x
1531 cacosl NEW: ISO C 9x
1532 capget NEW: kernel
1533 capset NEW: kernel
1534 carg NEW: ISO C 9x
1535 cargf NEW: ISO C 9x
1536 cargl NEW: ISO C 9x
1537 casin NEW: ISO C 9x
1538 casinf NEW: ISO C 9x
1539 casinh NEW: ISO C 9x
1540 casinhf NEW: ISO C 9x
1541 casinhl NEW: ISO C 9x
1542 casinl NEW: ISO C 9x
1543 catan NEW: ISO C 9x
1544 catanf NEW: ISO C 9x
1545 catanh NEW: ISO C 9x
1546 catanhf NEW: ISO C 9x
1547 catanhl NEW: ISO C 9x
1548 catanl NEW: ISO C 9x
1549 cbc_crypt NEW: Secure RPC
1550 ccos NEW: ISO C 9x
1551 ccosf NEW: ISO C 9x
1552 ccosh NEW: ISO C 9x
1553 ccoshf NEW: ISO C 9x
1554 ccoshl NEW: ISO C 9x
1555 ccosl NEW: ISO C 9x
1556 cexp NEW: ISO C 9x
1557 cexpf NEW: ISO C 9x
1558 cexpl NEW: ISO C 9x
1559 cimag NEW: ISO C 9x
1560 cimagf NEW: ISO C 9x
1561 cimagl NEW: ISO C 9x
1562 clearerr_locked REMOVED
1563 clntunix_create NEW: sunrpc ext
1564 clog NEW: ISO C 9x
1565 clog10 NEW: ISO C 9x
1566 clog10f NEW: ISO C 9x
1567 clog10l NEW: ISO C 9x
1568 clogf NEW: ISO C 9x
1569 clogl NEW: ISO C 9x
1570 conj NEW: ISO C 9x
1571 conjf NEW: ISO C 9x
1572 conjl NEW: ISO C 9x
1573 cpow NEW: ISO C 9x
1574 cpowf NEW: ISO C 9x
1575 cpowl NEW: ISO C 9x
1576 cproj NEW: ISO C 9x
1577 cprojf NEW: ISO C 9x
1578 cprojl NEW: ISO C 9x
1579 creal NEW: ISO C 9x
1580 crealf NEW: ISO C 9x
1581 creall NEW: ISO C 9x
1582 creat64 NEW: LFS
1583 csin NEW: ISO C 9x
1584 csinf NEW: ISO C 9x
1585 csinh NEW: ISO C 9x
1586 csinhf NEW: ISO C 9x
1587 csinhl NEW: ISO C 9x
1588 csinl NEW: ISO C 9x
1589 csqrt NEW: ISO C 9x
1590 csqrtf NEW: ISO C 9x
1591 csqrtl NEW: ISO C 9x
1592 ctan NEW: ISO C 9x
1593 ctanf NEW: ISO C 9x
1594 ctanh NEW: ISO C 9x
1595 ctanhf NEW: ISO C 9x
1596 ctanhl NEW: ISO C 9x
1597 ctanl NEW: ISO C 9x
1598 des_setparity NEW: Secure RPC
1599 ecb_crypt NEW: Secure RPC
1600 endutxent NEW: Unix98
1601 exp10 NEW: ISO C 9x
1602 exp10f NEW: ISO C 9x
1603 exp10l NEW: ISO C 9x
1604 exp2 NEW: ISO C 9x
1605 exp2f NEW: ISO C 9x
1606 exp2l NEW: ISO C 9x
1607 fattach NEW: STREAMS
1608 fdetach NEW: STREAMS
1609 fdim NEW: ISO C 9x
1610 fdimf NEW: ISO C 9x
1611 fdiml NEW: ISO C 9x
1612 feclearexcept NEW: ISO C 9x
1613 fegetenv NEW: ISO C 9x
1614 fegetexceptflag NEW: ISO C 9x
1615 fegetround NEW: ISO C 9x
1616 feholdexcept NEW: ISO C 9x
1617 feof_locked REMOVED
1618 feraiseexcept NEW: ISO C 9x
1619 ferror_locked REMOVED
1620 fesetenv NEW: ISO C 9x
1621 fesetexceptflag NEW: ISO C 9x
1622 fesetround NEW: ISO C 9x
1623 fetestexcept NEW: ISO C 9x
1624 feupdateenv NEW: ISO C 9x
1625 fflush_locked REMOVED
1626 ffsl NEW: GNU ext.
1627 ffsll NEW: GNU ext.
1628 fgetpos64 NEW: LFS
1629 fgets_unlocked NEW: GNU ext.
1630 fileno_locked REMOVED
1631 fma NEW: ISO C 9x
1632 fmaf NEW: ISO C 9x
1633 fmal NEW: ISO C 9x
1634 fmax NEW: ISO C 9x
1635 fmaxf NEW: ISO C 9x
1636 fmaxl NEW: ISO C 9x
1637 fmin NEW: ISO C 9x
1638 fminf NEW: ISO C 9x
1639 fminl NEW: ISO C 9x
1640 fmtmsg NEW: Unix98
1641 fopen64 NEW: LFS
1642 fputc_locked REMOVED
1643 fputs_unlocked NEW: GNU ext.
1644 fread_unlocked NEW: GNU ext.
1645 freopen64 NEW: LFS
1646 fseeko NEW: Unix98
1647 fsetpos64 NEW: LFS
1648 fstatfs64 NEW: LFS
1649 fstatvfs NEW: Unix98
1650 fstatvfs64 NEW: LFS
1651 ftello NEW: Unix98
1652 ftello64 NEW: LFS
1653 ftruncate64 NEW: LFS
1654 ftw64 NEW: LFS
1655 fwrite_unlocked NEW: GNU ext.
1656 gai_strerror NEW: IPv6
1657 gamma_r REMOVED
1658 gammaf_r REMOVED
1659 gammal_r REMOVED
1660 getchar_locked REMOVED
1661 getdate NEW: Unix98
1662 getdate_err NEW: Unix98
1663 getdate_r NEW: GNU ext.
1664 getmsg NEW: STREAMS
1665 getnameinfo NEW: IPv6
1666 getnetname NEW: Secure RPC
1667 getpmsg NEW: STREAMS
1668 getpt NEW: Unix98 PTY
1669 getrlimit64 NEW: LFS
1670 getutxent NEW: Unix98
1671 getutxid NEW: Unix98
1672 getutxline NEW: Unix98
1673 glob64 NEW: GNU ext.
1674 globfree64 NEW: GNU ext.
1675 gnu_get_libc_release NEW: GNU ext.
1676 gnu_get_libc_version NEW: GNU ext.
1677 grantpt NEW: Unix98 PTY
1678 host2netname NEW: Secure RPC
1679 iconv NEW: iconv
1680 iconv_close NEW: iconv
1681 iconv_open NEW: iconv
1682 if_freenameindex NEW: IPv6
1683 if_indextoname NEW: IPv6
1684 if_nameindex NEW: IPv6
1685 if_nametoindex NEW: IPv6
1686 in6addr_any NEW: IPv6
1687 in6addr_loopback NEW: IPv6
1688 inet6_isipv4mapped NEW: IPv6
1689 isastream NEW: STREAMS
1690 iswblank NEW: GNU ext.
1691 key_decryptsession NEW: Secure RPC
1692 key_decryptsession_pk NEW: Secure RPC
1693 key_encryptsession NEW: Secure RPC
1694 key_encryptsession_pk NEW: Secure RPC
1695 key_gendes NEW: Secure RPC
1696 key_get_conv NEW: Secure RPC
1697 key_secretkey_is_set NEW: Secure RPC
1698 key_setnet NEW: Secure RPC
1699 key_setsecret NEW: Secure RPC
1700 llrint NEW: ISO C 9x
1701 llrintf NEW: ISO C 9x
1702 llrintl NEW: ISO C 9x
1703 llround NEW: ISO C 9x
1704 llroundf NEW: ISO C 9x
1705 llroundl NEW: ISO C 9x
1706 log2 NEW: ISO C 9x
1707 log2f NEW: ISO C 9x
1708 log2l NEW: ISO C 9x
1709 lrint NEW: ISO C 9x
1710 lrintf NEW: ISO C 9x
1711 lrintl NEW: ISO C 9x
1712 lround NEW: ISO C 9x
1713 lroundf NEW: ISO C 9x
1714 lroundl NEW: ISO C 9x
1715 lseek64 NEW: LFS
1716 makecontext NEW: Unix98
1717 mempcpy NEW: GNU ext.
1718 mmap64 NEW: LFS
1719 moncontrol REMOVED
1720 modify_ldt NEW: kernel
1721 nan NEW: ISO C 9x
1722 nanf NEW: ISO C 9x
1723 nanl NEW: ISO C 9x
1724 nearbyint NEW: ISO C 9x
1725 nearbyintf NEW: ISO C 9x
1726 nearbyintl NEW: ISO C 9x
1727 netname2host NEW: Secure RPC
1728 netname2user NEW: Secure RPC
1729 nexttoward NEW: ISO C 9x
1730 nexttowardf NEW: ISO C 9x
1731 nexttowardl NEW: ISO C 9x
1732 nftw NEW: Unix98
1733 nftw64 NEW: LFS
1734 open64 NEW: LFS
1735 passwd2des NEW: Secure RPC
1736 pow10 NEW: GNU ext.
1737 pow10f NEW: GNU ext.
1738 pow10l NEW: GNU ext.
1739 pread NEW: Unix98
1740 pread64 NEW: LFS
1741 printf_size NEW: GNU ext.
1742 printf_size_info NEW: GNU ext.
1743 profil_counter REMOVED
1744 pthread_mutexattr_getkind_np REPLACED
1745 pthread_mutexattr_setkind_np REPLACED
1746 ptsname NEW: Unix98 PTY
1747 ptsname_r NEW: Unix98 PTY
1748 putc_locked REMOVED
1749 putchar_locked REMOVED
1750 putgrent NEW: GNU ext.
1751 putmsg NEW: STREAMS
1752 putpmsg NEW: STREAMS
1753 pututxline NEW: Unix98
1754 pwrite NEW: Unix98
1755 pwrite64 NEW: LFS
1756 readdir64 NEW: LFS
1757 readdir64_r NEW: LFS
1758 remquo NEW: ISO C 9x
1759 remquof NEW: ISO C 9x
1760 remquol NEW: ISO C 9x
1761 round NEW: ISO C 9x
1762 roundf NEW: ISO C 9x
1763 roundl NEW: ISO C 9x
1764 rtime NEW: GNU ext.
1765 scalbln NEW: ISO C 9x
1766 scalblnf NEW: ISO C 9x
1767 scalblnl NEW: ISO C 9x
1768 scandir64 NEW: LFS
1769 sendfile NEW: kernel
1770 setcontext NEW: Unix98
1771 setrlimit64 NEW: LFS
1772 setutxent NEW: Unix98
1773 sighold NEW: Unix98
1774 sigignore NEW: Unix98
1775 sigqueue NEW: POSIX.1b
1776 sigrelse NEW: Unix98
1777 sigset NEW: POSIX.1b
1778 sigtimedwait NEW: POSIX.1b
1779 sigwaitinfo NEW: POSIX.1b
1780 sincos NEW: GNU ext.
1781 sincosf NEW: GNU ext.
1782 sincosl NEW: GNU ext.
1783 statfs64 NEW: LFS
1784 statvfs NEW: Unix98
1785 statvfs64 NEW: LFS
1786 strcasestr NEW: GNU ext.
1787 strtoimax NEW: ISO C 9x
1788 strtoumax NEW: ISO C 9x
1789 strverscmp NEW: GNU ext.
1790 svcauthdes_stats NEW: Secure RPC
1791 svcunix_create NEW: sunrpc etx
1792 svcunixfd_create NEW: sunrpc ext
1793 swapcontext NEW: Unix98
1794 tcgetsid NEW: Unix98 PTY
1795 tdestroy NEW: GNU ext.
1796 tgamma NEW: ISO C 9x
1797 tgammaf NEW: ISO C 9x
1798 tgammal NEW: ISO C 9x
1799 tmpfile64 NEW: LFS
1800 trunc NEW: ISO C 9x
1801 truncate64 NEW: LFS
1802 truncf NEW: ISO C 9x
1803 truncl NEW: ISO C 9x
1804 umount2 NEW: kernel
1805 unlockpt NEW: Unix98 PTY
1806 updwtmpx NEW: Unix98
1807 user2netname NEW: Secure RPC
1808 utmpxname NEW: Unix98
1809 versionsort NEW: GNU ext.
1810 versionsort64 NEW: GNU ext.
1811 waitid NEW: Unix98
1812 wcscasecmp NEW: GNU ext.
1813 wcsncasecmp NEW: GNU ext.
1814 wcsnlen NEW: GNU ext.
1815 wcstoimax NEW: ISO C 9x
1816 wcstoll NEW: ISO C 9x
1817 wcstoull NEW: ISO C 9x
1818 wcstoumax NEW: ISO C 9x
1819 wcswcs NEW: Unix98
1820 wordexp NEW: POSIX.2
1821 wordfree NEW: POSIX.2
1822 write_profiling REMOVED
1823 xdecrypt NEW: Secure RPC
1824 xdr_authdes_cred NEW: Secure RPC
1825 xdr_authdes_verf NEW: Secure RPC
1826 xdr_cryptkeyarg NEW: Secure RPC
1827 xdr_cryptkeyarg2 NEW: Secure RPC
1828 xdr_cryptkeyres NEW: Secure RPC
1829 xdr_getcredres NEW: Secure RPC
1830 xdr_key_netstarg NEW: Secure RPC
1831 xdr_key_netstres NEW: Secure RPC
1832 xdr_keybuf NEW: Secure RPC
1833 xdr_keystatus NEW: Secure RPC
1834 xdr_netnamestr NEW: Secure RPC
1835 xdr_sizeof NEW: Secure RPC
1836 xdr_unixcred NEW: sunrpc ext
1837 xencrypt NEW: Secure RPC
1838 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1839 \f
1840 Version 2.0.6
1842 * more bug fixes
1844 \f
1845 Version 2.0.5
1847 * more bug fixes
1849 * inet_ntoa is thread-safe
1851 * updwtmp is moved from libutil to libc
1853 * rewrite of cbrt function
1855 * update of timezone data
1856 \f
1857 Version 2.0.4
1859 * more bug fixes
1860 \f
1861 Version 2.0.3
1863 * more bug fixes
1864 \f
1865 Version 2.0.2
1867 * more bug fixes
1869 * add atoll function
1871 * fix complex problems in Berkeley DB code
1873 * fix math functions
1874 \f
1875 Version 2.0.1
1877 * fixed lots of header problems (especially Linux/GNU specific)
1879 * dynamic loader preserves all registers
1881 * Roland McGrath provided support for handling of auxiliary objects in
1882 the ELF dynamic loader.
1884 * support for parallel builds is improved
1885 \f
1886 Version 2.0
1888 * GNU extensions are no longer declared by default. To enable them you
1889 must define the macro `_GNU_SOURCE' in your program or compile with
1890 `-D_GNU_SOURCE'.
1892 * The library has changed from using GNU ld symbol aliases to using weak
1893 symbols where available. The ELF object file format supports weak
1894 symbols; GNU ld also supports weak symbols in the a.out format. (There
1895 is also now support for other GNU ld extensions in ELF. Use the
1896 `--with-elf' option to configure to indicate you have ELF, and
1897 `--with-gnu-ld' if using GNU ld.) This change resulted in the deletion
1898 of many files which contained only symbol aliases, reducing the size of
1899 the source and the compiled library; many other files were renamed to
1900 less cryptic names previously occupied by the symbol alias files.
1901 There is a new header file <elf.h> for programs which operate on
1902 files in the ELF format.
1904 * Converted to Autoconf version 2, so `configure' has more options.
1905 Run `configure --help' to see the details.
1907 * The library can now be configured to build profiling, highly-optimized
1908 (but undebuggable), and/or shared libraries (ELF with GNU ld only). The
1909 `--enable-profile', `--enable-omitfp', and `--enable-shared' options to
1910 `configure' enable building these extra libraries. The shared library is
1911 built by default when using both ELF and GNU ld. When shared libraries
1912 are enabled, the new library `-ldl' is available for arbitrary run-time
1913 loading of shared objects; its interface is defined in <dlfcn.h>. The
1914 new header file <link.h> gives access to the internals of the run-time
1915 dynamic linker, `ld.so'. The shell script `ldd' is similar to the
1916 application of same name on other systems and it provides information
1917 about dynamically linked binaries.
1919 * The C library now provides the run-time support code for profiling
1920 executables compiled with `-pg'. Programs can control the profiling code
1921 through the interface in <sys/gmon.h>. The `gmon.out' files written by
1922 the GNU C library can be read only by GNU `gprof' (from GNU binutils);
1923 the support for this file format was contributed by David Mosberger-Tang.
1925 * The math code has been replaced with a math library based on fdlibm from
1926 Sun, and modified by JT Conklin and Ulrich Drepper with i387 support, by
1927 Ian Taylor with `float' functions and by Ulrich Drepper with `long double'
1928 functions. The math functions now reside in a separate library, so
1929 programs using them will need to use `-lm' their linking commands.
1931 * John C. Bowman contributed optimized ix87 assembler inline functions.
1933 * Ulrich Drepper has contributed support for an `/etc/nsswitch.conf'
1934 mechanism similar to that found in Solaris 2. This is now used for the
1935 group, passwd, hosts, networks, services, protocols, rpc, ethers,
1936 shadow, netgroup, publickey, and alias databases. The `nsswitch.conf'
1937 file controls what services are used for each individual database. This
1938 works by loading shared libraries with names specified in `nsswitch.conf',
1939 so service modules can be changed or added at any time without even
1940 relinking any program. Currently there are the file, db, and NIS based
1941 NSS services available.
1943 * The new functions `strtoq' and `strtouq' parse integer values from
1944 strings, like `strtol' and `strtoul', but they return `long long int' and
1945 `unsigned long long int' values, respectively (64-bit quantities).
1947 * The new functions `strtof' and `strtold' parse floating-point values from
1948 strings, like `strtod', but they return `float' and `long double' values,
1949 respectively (on some machines `double' and `long double' are the same).
1951 * Ulrich Drepper has contributed new implementations of the floating-point
1952 printing and reading code used in the `printf' family of functions and
1953 `strtod', `strtof', and `strtold'. These new functions are perfectly
1954 accurate, and much faster than the old ones.
1956 * The implementation of the POSIX locale model was completely rewritten by
1957 Ulrich Drepper. This includes the new programs `localedef' and `locale'
1958 to compile the POSIX locale definition.
1960 * The former dummy implementations of the strcoll and strxfrm function are
1961 now replaced by fully functional code contributed by Ulrich Drepper. The
1962 collation information comes from the POSIX locale definitions.
1964 * The new header <langinfo.h> defines an interface for accessing
1965 various locale-dependent data (using the locale chosen with `setlocale').
1967 * Ulrich Drepper has contributed a new suite of functions for operation on
1968 wide-character and multibyte-character strings, in <wchar.h>;
1969 and classification and case conversion of wide characters, in <wctype.h>.
1970 These new functions are conforming to the ISO C, Amendement 1 specification.
1972 * There is now a second implementation of the standard I/O library available.
1973 It comes from GNU libg++ as was written by Per Bothner, heavily modified
1974 by Hongjiu Lu and made thread safe by Ulrich Drepper.
1976 * You can now use positional parameter specifications in format strings
1977 for the `printf' and `scanf' families of functions. For example,
1978 `printf ("Number %2$d, Mr %1$s\n", "Jones", 6);'' prints
1979 ``Number 6, Mr Jones''. This is mainly useful when providing different
1980 format strings for different languages, whose grammars may dictate
1981 different orderings of the values being printed. To support this
1982 feature, the interface for `register_printf_handler' has changed; see
1983 the header file <printf.h> for details.
1985 * The `printf' and `scanf' families of functions now understand a new
1986 formatting flag for numeric conversions: the ' flag (e.g. %'d or %'f) says
1987 to group numbers as indicated by the locale; for `scanf' and friends, this
1988 says to accept as valid only a number with all the proper grouping
1989 separators in the right places. In the default "C" locale, numbers are
1990 not grouped; but locales for specific countries will define the usual
1991 conventions (i.e. separate thousands with `,' in the US locale).
1993 * The pgrp functions have been regularized, slightly incompatibly but much
1994 less confusingly. The core functions are now `getpgid' and `setpgid',
1995 which take arguments for the PID to operate on; the POSIX.1 `getpgrp' (no
1996 argument) and BSD `setpgrp' (identical to `setpgid') functions are
1997 provided for compatibility. There is no longer an incompatible `getpgrp'
1998 with an argument declared under _BSD_SOURCE; no BSD code uses it.
2000 * The new header file <fts.h> and suite of functions simplify programs that
2001 operate on directory trees. This code comes from 4.4 BSD.
2003 * The resolver code has been updated from the BIND 4.9.5-P1 release.
2004 Parts of the code were heavily modified by Ulrich Drepper to fit in the
2005 NSS scheme used in glibc.
2007 * There is a new malloc debugging hook `__memalign_hook'.
2009 * There are new typedefs `ushort' for `unsigned short int' and `uint' for
2010 `unsigned int' in <sys/types.h>. These are for compatibility only and
2011 their use is discouraged.
2013 * The `-lmcheck' library to enable standard malloc debugging hooks is now
2014 done differently, so that it works even without GNU ld.
2016 * New function `euidaccess' checks allowed access to a file like `access',
2017 but using the effective IDs instead of the real IDs.
2019 * The time zone data files have been updated for the latest and greatest
2020 local time conventions of the countries of the world.
2022 * The new function `dirfd' extracts the file descriptor used by a DIR stream;
2023 see <dirent.h>.
2025 * The new functions `ecvt', `fcvt', and `gcvt' provide an obsolete interface
2026 for formatting floating-point numbers. They are provided only for
2027 compatibility; new programs should use `sprintf' instead. There are
2028 also equivalent function for the `long double' floating-point type and
2029 all functions also exist in a reentrant form.
2031 * The new auxiliary library `-lutil' from 4.4 BSD contains various
2032 functions for maintaining the login-record files (primarily of use to
2033 system programs such as `login'), and convenient functions for
2034 allocating and initializing a pseudo-terminal (pty) device.
2036 * Ulrich Drepper has contributed new support for System V style
2037 shared memory and IPC on systems that support it.
2039 * Ulrich Drepper has contributed several miscellaneous new functions found
2040 in System V: The `hsearch' family of functions provide an effective
2041 implementation of hash tables; `a64l' and `l64a' provide a very simple
2042 binary to ASCII mapping; `drand48' and friends provide a 48-bit random
2043 number generator.
2045 * Ulrich Drepper has contributed new reentrant counterparts for the
2046 `random' and `hsearch' families of functions; `random_r', `hsearch_r', etc.
2048 * Ulrich Drepper has contributed new, highly-optimized versions of several
2049 string functions for the i486/Pentium family of processors.
2051 * Ulrich Drepper has updated the Linux-specific code, based largely
2052 on work done in Hongjiu Lu's version of GNU libc for Linux.
2053 The GNU library now supports Linux versions 2.0.10 and later,
2054 using the ELF object file format (i[3456]86-*-linux).
2056 * Andreas Schwab has ported the C library to Linux/m68k (m68k-*-linux).
2058 * David Mosberger-Tang and Richard Henderson have ported the C library
2059 to Linux/Alpha (alpha-*-linux). Richard Henderson contributed the
2060 dynamic linking support for ELF/Alpha.
2062 * Richard Henderson contributed several Alpha optimized assembler function
2063 for arithmetic and string handling.
2065 * Ulrich Drepper has contributed a new set of message catalog functions to
2066 support multiple languages using the <libintl.h> interface, for use with
2067 his new package GNU gettext. Translation volunteers have contributed
2068 catalogs of the library's messages in Spanish, German, and Korean.
2070 * For compatibility with XPG4, Ulrich Drepper has contributed the `gencat'
2071 program and the `catgets' function for reading the catalog files it
2072 creates. (The <libintl.h> interface is preferred; we include the
2073 <nl_types.h> interface using `catgets' only for source compatibility with
2074 programs already written to use it.)
2076 * New header file <values.h> gives SVID-compatible names for <limits.h>
2077 constants.
2079 * Various new macros, declarations, and small header files for compatibility
2080 with 4.4 BSD.
2082 * New function `group_member' is a convenient way to check if a process has
2083 a given effective group ID.
2085 * When using GCC 2.7 and later, the socket functions are now declared in a
2086 special way so that passing an argument of type `struct sockaddr_in *',
2087 `struct sockaddr_ns *', or `struct sockaddr_un *' instead of the generic
2088 `struct sockaddr *' type, does not generate a type-clash warning.
2090 * New function `error' declared in header file <error.h> is a convenient
2091 function for printing error messages and optionally exiting; this is the
2092 canonical function used in GNU programs. The new functions `err', `warn',
2093 and friends in header file <err.h> are the canonical 4.4 BSD interface for
2094 doing the same thing.
2096 * The <glob.h> interface has several new flags from 4.4 BSD that extend the
2097 POSIX.2 `glob' function to do ~ and {...} expansion.
2099 * New function `unsetenv' complements `setenv' for compatibility with 4.4 BSD.
2100 `clearenv' which is used in POSIX.9 is also available.
2102 * New function `getsid' returns session ID number on systems that support it.
2104 * We have incorporated the 4.4 BSD `db' library (version 1.85). New header
2105 files <db.h> and <mpool.h> provide a rich set of functions for several
2106 types of simple databases stored in memory and in files, and <ndbm.h> is
2107 an old `ndbm'-compatible interface using the `db' functions. Link with
2108 `-ldb' to get these functions.
2110 * New macro `strdupa' copies a string like `strdup', but uses local stack
2111 space from `alloca' instead of dynamic heap space from `malloc'.
2113 * New function `strnlen' is like `strlen' but searches only a given maximum
2114 number of characters for the null terminator. `stpncpy', `strndup' and
2115 `strndupa' are similar variants for the `stpcpy', `strdup' and `strdupa'
2116 function.
2118 * New function `statfs' in header <sys/statfs.h>.
2120 * The new <argz.h> and <envz.h> interfaces contributed by Miles Bader
2121 provide convenient functions for operating on blocks of null-terminated
2122 strings.
2124 * A new suite of functions in <utmp.h> handle all the details of reading
2125 and writing the utmp file.
2127 * An implementation of the NIS/YP(tm) based NSS service was contributed by
2128 Thorsten Kukuk.
2130 * Paul Eggert and Ulrich Drepper modified the `strftime' function to be
2131 completely POSIX compliant and also implemented the extended functionality
2132 to handle alternate digit representation and alternate era date formats.
2134 * Ulrich Drepper provided an implementation of the `strptime' function
2135 defined in XPG4.2 which transforms a string into a `struct tm' value.
2137 * Paul Eggert provided the tzselect shell script as part of the timezone
2138 code. The shell script makes it easy to select the correct timezone
2139 specification.
2141 * The implementation of the malloc family of functions is completely replaced
2142 by a new implementation by Doug Lea with many improvements by Wolfram Gloger.
2143 The implementation uses the mmap function (if available) and it is
2144 optimized for the use in multi threaded programs.
2146 * Ulrich Drepper contributed a MD5 "encryption" for the crypt family of
2147 functions. This new functionality is usable by specifying a special
2148 salt string and it is compatible with implementation on *BSD systems.
2150 * Lots of functions from the XPG4.2 standard were added by Ulrich Drepper:
2151 `getsubopt' to handle second level command line options, `bsd_signal'
2152 to access BSD style `signal' functionality, the obsolete `regexp' style
2153 expression matcher.
2155 * the `lchown' function is available on system which support this
2156 functionality.
2158 * The implementation of the shadow password handling function was contributed
2159 by Ulrich Drepper.
2161 * David Mosberger-Tang changed the SunRPC implementation to be 64bit safe.
2163 * POSIX.1g support was added. The <sys/select.h> header is available,
2164 `isfdtype' and `pselect' are implemented. Craig Metz contributed an
2165 implementation of `getaddrinfo'.
2166 \f
2167 Version 1.09
2169 * For cross-compilation you should now set `BUILD_CC' instead of `HOST_CC'.
2171 * New header file <fstab.h> and new functions `getfsspec', `getfsent' and
2172 friends, for parsing /etc/fstab. This code comes from 4.4 BSD.
2174 * The new function `daemon' from 4.4 BSD is useful for server programs that
2175 want to put themselves in the background.
2177 * Joel Sherrill has contributed support for several standalone boards that
2178 run without an operating system.
2180 * `printf', `scanf' and friends now accept a `q' type modifier for long
2181 long int as well as `ll'. Formats using these might be `%qu' or `%lld'.
2183 * All of the code taken from BSD (notably most of the math and networking
2184 routines) has been updated from the BSD 4.4-Lite release.
2186 * The resolver code has been updated from the BIND-4.9.3-BETA9 release.
2188 * The new functions `getdomainname' and `setdomainname' fetch or change the
2189 YP/NIS domain name. These are system calls which exist on systems which
2190 have YP (aka NIS).
2192 * The time zone data files have been updated for the latest international
2193 conventions.
2195 * The SunRPC programs `portmap' and `rpcinfo' are now installed in
2196 $(sbindir) (usually /usr/local/sbin) instead of $(bindir).
2197 \f
2198 Version 1.08
2200 * The C library now includes support for Sun RPC, from Sun's free
2201 RPCSRC-4.0 distribution. The `portmap', `rpcinfo', and `rpcgen' programs
2202 are included. (There is still no support for YP.)
2204 * Tom Quinn has contributed a port of the C library to SGI machines running
2205 Irix 4 (mips-sgi-irix4).
2207 * The new `lockf' function is a simplified interface to the locking
2208 facilities of `fcntl', included for compatibility.
2210 * New time functions `timegm', `timelocal', and `dysize' for compatibility.
2212 * New header file <sys/timeb.h> and new function `ftime' for compatibility.
2214 * New header files <poll.h> and <sys/poll.h> and new function `poll' for
2215 compatibility.
2217 * The error message printed by `assert' for a failed assertion now includes
2218 the name of the program (if using GNU ld) and the name of the calling
2219 function (with versions of GCC that support this).
2221 * The `psignal' function is now declared in <signal.h>, not <stdio.h>.
2223 * The library now includes the <sys/mman.h> header file and memory
2224 management functions `mmap', `munmap', `mprotect', `msync', and
2225 `madvise', on systems that support those facilities.
2227 * The interface for `mcheck' has changed slightly: the function called to
2228 abort the program when an allocation inconsistency is detected now takes
2229 an argument that indicates the type of failure. The new function
2230 `mprobe' lets you request a consistency check for a particular block at
2231 any time (checks are normally done only when you call `free' or `realloc'
2232 on a block).
2234 * It is now possible to easily cross-compile the C library, building on one
2235 system a library to run on another machine and/or operating system. All
2236 you need to do is set the variable `HOST_CC' in `configparms' to the
2237 native compiler for programs to run on the machine you are building on (a
2238 few generator programs are used on Unix systems); set `CC' to the
2239 cross-compiler.
2241 * The new function `fexecve' (only implemented on the GNU system) executes
2242 a program file given a file descriptor already open on the file.
2243 \f
2244 Version 1.07
2246 * Brendan Kehoe has contributed most of a port to the DEC Alpha
2247 running OSF/1 (alpha-dec-osf1). He says it is 75% complete.
2249 * You can set the variable `libprefix' in `configparms' to specify a prefix
2250 to be prepended to installed library files; this makes it easy to install
2251 the GNU C library to be linked as `-lgnuc' or whatever.
2253 * The new `stpncpy' is a cross between `stpcpy' and `strncpy': It
2254 copies a limited number of characters from a string, and returns the
2255 address of the last character written.
2257 * You no longer need to check for whether the installed `stddef.h' is
2258 compatible with the GNU C library. configure now checks for you.
2260 * You can now define a per-stream `fileno' function to convert the
2261 stream's cookie into an integral file descriptor.
2263 * ``malloc (0)'' no longer returns a null pointer. Instead, it
2264 allocates zero bytes of storage, and returns a unique pointer which
2265 you can pass to `realloc' or `free'. The behavior is undefined if
2266 you dereference this pointer.
2268 * The C library now runs on Sony NEWS m68k machines running either
2269 NewsOS 3 or NewsOS 4.
2271 * The new `syscall' function is a system-dependent primitive function
2272 for invoking system calls. It has the canonical behavior on Unix
2273 systems, including unreliable return values for some calls (such as
2274 `pipe', `fork' and `getppid').
2276 * The error code `EWOULDBLOCK' is now obsolete; it is always defined
2277 to `EAGAIN', which is the preferred name. On systems whose kernels
2278 use two distinct codes, the C library now translates EWOULDBLOCK to
2279 EAGAIN in every system call function.
2280 \f
2281 Version 1.06
2283 * The GNU C Library Reference Manual is now distributed with the library.
2284 `make dvi' will produce a DVI file of the printed manual.
2285 `make info' will produce Info files that you can read on line using C-h i
2286 in Emacs or the `info' program.
2287 Please send comments on the manual to bug-glibc-manual@gnu.org.
2289 * The library now supports SVR4 on i386s (i386-unknown-sysv4).
2291 * Brendan Kehoe has contributed a port to Sun SPARCs running Solaris 2.
2293 * Jason Merrill has contributed a port to the Sequent Symmetry running
2294 Dynix version 3 (i386-sequent-dynix).
2296 * The library has been ported to i386s running SCO 3.2.4 (also known as SCO
2297 ODT 2.0; i386-unknown-sco3.2.4) or SCO 3.2 (i386-unknown-sco3.2).
2299 * New function `memory_warnings' lets you arrange to get warnings when
2300 malloc is running out of memory to allocate, like Emacs gives you.
2302 * The C library now contains the relocating allocator used in Emacs 19 for
2303 its editing buffers. This allocator (ralloc) minimizes allocation
2304 overhead and fragmentation by moving allocated regions around whenever it
2305 needs to. You always refer to a ralloc'd region with a "handle" (a
2306 pointer to a pointer--an object of type `void **').
2308 * There is a new `printf' format: `%m' gives you the string corresponding
2309 to the error code in `errno'.
2311 * In `scanf' formats, you can now use `%as' or `%a[' to do the normal `%s'
2312 or `%[' conversion, but instead of filling in a fixed-sized buffer you
2313 pass, the `a' modifier says to fill in a `char **' you pass with a
2314 malloc'd string.
2316 * The `fnmatch' function supports the new flag bits `FNM_LEADING_DIR' and
2317 `FNM_CASEFOLD'. `FNM_LEADING_DIR' lets a pattern like `foo*' match a
2318 name like `foo/bar'. `FNM_CASEFOLD' says to ignore case in matching.
2320 * `mkstemp' is a traditional Unix function to atomically create and open a
2321 uniquely-named temporary file.
2322 \f
2323 Version 1.05
2325 * The standard location for the file that says what the local timezone is
2326 has changed again. It is now `/usr/local/etc/localtime' (or more
2327 precisely, `${prefix}/etc/localtime') rather than `/etc/localtime'.
2329 * The distribution no longer contains any files with names longer than 14
2330 characters.
2332 * `struct ttyent' has two new flag bits: TTY_TRUSTED and TTY_CONSOLE.
2333 These are set by the new `trusted' and `console' keywords in `/etc/ttys'.
2335 * New functions `ttyslot' and `syslog' from 4.4 BSD.
2336 \f
2337 Version 1.04
2339 * The configuration process has changed quite a bit. The `configure'
2340 script is now used just like the configuration scripts for other GNU
2341 packages. The `sysdeps' directory hierarchy is much rearranged.
2342 The file `INSTALL' explains the new scheme in detail.
2344 * The header files no longer need to be processed into ANSI C and
2345 traditional C versions. There is just one set of files to install, and
2346 it will work with ANSI or old C compilers (including `gcc -traditional').
2348 * Brendan Kehoe and Ian Lance Taylor have ported the library to the
2349 MIPS DECStation running Ultrix 4.
2351 * The Sun 4 startup code (crt0) can now properly load SunOS 4 shared libraries.
2352 Tom Quinn contributed the initial code. The GNU C library can NOT yet be
2353 made itself into a shared library.
2355 * Yet further improved support for the i386, running 4.3 BSD-like systems
2356 (such as Mach 3 with the Unix single-server), or System V.
2358 * New function `strncasecmp' to do case-insensitive string comparison
2359 with limited length.
2361 * New function `strsep' is a reentrant alternative to `strtok'.
2363 * New functions `scandir' and `alphasort' for searching directories.
2365 * New function `setenv' is a better interface to `putenv'.
2367 * Ian Lance Taylor has contributed an implementation of the SVID `ftw'
2368 function for traversing a directory tree.
2370 * The GNU obstack package is now also part of the C library.
2371 The new function `open_obstack_stream' creates a stdio stream that
2372 writes onto an obstack; `obstack_printf' and `obstack_vprintf' do
2373 formatted output directly to an obstack.
2375 * Miscellaneous new functions: reboot, nice, sigaltstack (4.4 BSD only),
2376 cfmakeraw, getusershell, getpass, swab, getttyent, seteuid, setegid.
2378 * `FNM_FILE_NAME' is another name for `FNM_PATHNAME', used with `fnmatch'.
2380 * The new functions `strfry' and `memfrob' do mysterious and wonderful
2381 things to your strings.
2383 * There are some new test programs: test-fseek, testmb, and testrand.
2385 * Some work has been done to begin porting the library to 4.4 BSD and Linux.
2386 These ports are not finished, but are a good starting place for really
2387 supporting those systems.
2389 * `/etc/localtime' is now the standard location for the file that says what
2390 the local timezone is, rather than `/usr/local/lib/zoneinfo/localtime'.
2391 This follows the general principle that `/etc' is the place for all local
2392 configuration files.
2394 * The C library header files now use `extern "C"' when used by the C++
2395 compiler, so the C library should now work with C++ code.
2397 * The header file <bstring.h> is gone. <string.h> now declares bcopy,
2398 bcmp, bzero, and ffs. (Update: nowadays these functions are declared
2399 in <strings.h>.)
2401 * Mike Haertel (of GNU e?grep and malloc fame) has written a new sorting
2402 function which uses the `merge sort' algorithm, and is said to be
2403 significantly faster than the old GNU `qsort' function. Merge sort is
2404 now the standard `qsort' function. The new algorithm can require a lot
2405 of temporary storage; so, the old sorting function is called when the
2406 required storage is not available.
2408 * The C library now includes Michael Glad's Ultra Fast Crypt, which
2409 provides the Unix `crypt' function, plus some other entry points.
2411 * The code and header files taken from 4.4 BSD have been updated with the
2412 latest files released from Berkeley.
2413 \f
2414 ----------------------------------------------------------------------
2415 Copyright information:
2417 Copyright (C) 1992-2014 Free Software Foundation, Inc.
2419 Permission is granted to anyone to make or distribute verbatim copies
2420 of this document as received, in any medium, provided that the
2421 copyright notice and this permission notice are preserved,
2422 thus giving the recipient permission to redistribute in turn.
2424 Permission is granted to distribute modified versions
2425 of this document, or of portions of it,
2426 under the above conditions, provided also that they
2427 carry prominent notices stating who last changed them.
2428 \f
2429 Local variables:
2430 version-control: never
2431 fill-column: 76
2432 End: