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1 GNU C Library NEWS -- history of user-visible changes.
2 Copyright (C) 1992-2014 Free Software Foundation, Inc.
3 See the end for copying conditions.
5 Please send GNU C library bug reports via <http://sourceware.org/bugzilla/>
6 using `glibc' in the "product" field.
7 \f
8 Version 2.20
10 * The following bugs are resolved with this release:
12 15347, 15804, 15894, 16447, 16532, 16545, 16574, 16600, 16609, 16610,
13 16611, 16613, 16623, 16632, 16639, 16642, 16670, 16674, 16677, 16683,
14 16689, 16695.
16 * The am33 port, which had not worked for several years, has been removed
17 from ports.
19 * The _BSD_SOURCE and _SVID_SOURCE feature test macros are no longer
20 supported; they now act the same as _DEFAULT_SOURCE (but generate a
21 warning). Except for cases where _BSD_SOURCE enabled BSD interfaces that
22 conflicted with POSIX (support for which was removed in 2.19), the
23 interfaces those macros enabled remain available when compiling with
24 _GNU_SOURCE defined, with _DEFAULT_SOURCE defined, or without any feature
25 test macros defined.
26 \f
27 Version 2.19
29 * The following bugs are resolved with this release:
31 156, 387, 431, 762, 832, 926, 2801, 4772, 6786, 6787, 6807, 6810, 6981,
32 7003, 9721, 9954, 10253, 10278, 11087, 11157, 11214, 12100, 12486, 12751,
33 12986, 13028, 13982, 13985, 14029, 14032, 14120, 14143, 14155, 14286,
34 14547, 14699, 14752, 14782, 14876, 14910, 15004, 15048, 15073, 15089,
35 15128, 15218, 15268, 15277, 15308, 15362, 15374, 15400, 15425, 15427,
36 15483, 15522, 15531, 15532, 15593, 15601, 15608, 15609, 15610, 15632,
37 15640, 15670, 15672, 15680, 15681, 15723, 15734, 15735, 15736, 15748,
38 15749, 15754, 15760, 15763, 15764, 15797, 15799, 15825, 15843, 15844,
39 15846, 15847, 15849, 15850, 15855, 15856, 15857, 15859, 15867, 15886,
40 15887, 15890, 15892, 15893, 15895, 15897, 15901, 15905, 15909, 15915,
41 15917, 15919, 15921, 15923, 15939, 15941, 15948, 15963, 15966, 15968,
42 15985, 15988, 15997, 16032, 16034, 16036, 16037, 16038, 16041, 16046,
43 16055, 16071, 16072, 16074, 16077, 16078, 16103, 16112, 16143, 16144,
44 16146, 16150, 16151, 16153, 16167, 16169, 16172, 16195, 16214, 16245,
45 16271, 16274, 16283, 16289, 16293, 16314, 16316, 16330, 16337, 16338,
46 16356, 16365, 16366, 16369, 16372, 16375, 16379, 16381, 16384, 16385,
47 16386, 16387, 16390, 16394, 16398, 16400, 16407, 16408, 16414, 16430,
48 16431, 16453, 16474, 16506, 16510, 16529
50 * Slovenian translations for glibc messages have been contributed by the
51 Translation Project's Slovenian team of translators.
53 * The public headers no longer use __unused nor __block. This change is to
54 support compiling programs that are derived from BSD sources and use
55 __unused internally, and to support compiling with Clang's -fblock
56 extension which uses __block.
58 * CVE-2012-4412 The strcoll implementation caches indices and rules for
59 large collation sequences to optimize multiple passes. This cache
60 computation may overflow for large collation sequences and may cause a
61 stack or buffer overflow. This is now fixed to use a slower algorithm
62 which does not use a cache if there is an integer overflow.
64 * CVE-2012-4424 The strcoll implementation uses malloc to cache indices and
65 rules for large collation sequences to optimize multiple passes and falls
66 back to alloca if malloc fails, resulting in a possible stack overflow.
67 The implementation now falls back to an uncached collation sequence lookup
68 if malloc fails.
70 * CVE-2013-4788 The pointer guard used for pointer mangling was not
71 initialized for static applications resulting in the security feature
72 being disabled. The pointer guard is now correctly initialized to a
73 random value for static applications. Existing static applications need
74 to be recompiled to take advantage of the fix (bug 15754).
76 * CVE-2013-4237 The readdir_r function could write more than NAME_MAX bytes
77 to the d_name member of struct dirent, or omit the terminating NUL
78 character. (Bugzilla #14699).
80 * CVE-2013-4332 The pvalloc, valloc, memalign, posix_memalign and
81 aligned_alloc functions could allocate too few bytes or corrupt the
82 heap when passed very large allocation size values (Bugzilla #15855,
83 #15856, #15857).
85 * CVE-2013-4458 Stack overflow in getaddrinfo with large number of results
86 for AF_INET6 has been fixed (Bugzilla #16072).
88 * New locales: ak_GH, anp_IN, ar_SS, cmn_TW, hak_TW, lzh_TW, nan_TW, pap_AW,
89 pap_CW, quz_PE, the_NP.
91 * Substantially revised locales: gd_GB, ht_HT
93 * The LC_ADDRESS field was updated to support country_car for almost all
94 supported locales.
96 * ISO 1427 definitions were updated.
98 * ISO 3166 definitions were updated.
100 * The localedef utility now supports --big-endian and --little-endian
101 command-line options to generate locales for a different system from that
102 for which the C library was built.
104 * Binary locale files now only depend on the endianness of the system for
105 which they are generated and not on other properties of that system. As a
106 consequence, binary files generated with new localedef may be incompatible
107 with old versions of the GNU C Library, and binary files generated with
108 old localedef may be incompatible with this version of the GNU C Library,
109 in the following circumstances:
111 + Locale files may be incompatible on m68k systems.
113 + Locale archive files (but not separate files for individual locales) may
114 be incompatible on systems where plain "char" is signed.
116 * The configure option --disable-versioning has been removed. Builds with
117 --disable-versioning had not worked for several years.
119 * ISO 639 definitions were updated for Chiga (cgg) and Chinese (gan, hak, czh,
120 cjy, lzh, cmn, mnp, cdo, czo, cpx, wuu, hsn, yue).
122 * SystemTap probes for malloc have been introduced.
124 * SystemTap probes for slow multiple precision fallback paths of
125 transcendental functions have been introduced.
127 * Support for powerpc64le has been added.
129 * The soft-float powerpc port now supports e500 processors.
131 * Support for STT_GNU_IFUNC symbols added for ppc32/power4+ and ppc64.
133 * A new feature test macro _DEFAULT_SOURCE is available to enable the same
134 set of header declarations that are enabled by default, even when other
135 feature test macros or compiler options such as -std=c99 would otherwise
136 disable some of those declarations.
138 * The _BSD_SOURCE feature test macro no longer enables BSD interfaces that
139 conflict with POSIX. The libbsd-compat library (which was a dummy library
140 that did nothing) has also been removed.
142 * Preliminary documentation about Multi-Thread, Async-Signal and
143 Async-Cancel Safety has been added.
144 \f
145 Version 2.18
147 * The following bugs are resolved with this release:
149 2546, 2560, 5159, 6809, 7006, 10060, 10062, 10283, 10357, 10686, 11120,
150 11561, 12310, 12387, 12492, 12515, 12723, 13550, 13889, 13951, 13988,
151 14142, 14176, 14200, 14256, 14280, 14293, 14317, 14327, 14478, 14496,
152 14582, 14686, 14812, 14888, 14894, 14907, 14908, 14909, 14920, 14952,
153 14964, 14981, 14982, 14985, 14991, 14994, 14996, 15000, 15003, 15006,
154 15007, 15014, 15020, 15022, 15023, 15036, 15054, 15055, 15062, 15078,
155 15084, 15085, 15086, 15100, 15160, 15214, 15221, 15232, 15234, 15283,
156 15285, 15287, 15304, 15305, 15307, 15309, 15327, 15330, 15335, 15336,
157 15337, 15339, 15342, 15346, 15359, 15361, 15366, 15380, 15381, 15394,
158 15395, 15405, 15406, 15409, 15416, 15418, 15419, 15423, 15424, 15426,
159 15429, 15431, 15432, 15441, 15442, 15448, 15465, 15480, 15485, 15488,
160 15490, 15492, 15493, 15497, 15506, 15529, 15536, 15553, 15577, 15583,
161 15618, 15627, 15631, 15654, 15655, 15666, 15667, 15674, 15711, 15755,
162 15759.
164 * CVE-2013-2207 Incorrectly granting access to another user's pseudo-terminal
165 has been fixed by disabling the use of pt_chown (Bugzilla #15755).
166 Distributions can re-enable building and using pt_chown via the new configure
167 option `--enable-pt_chown'. Enabling the use of pt_chown carries with it
168 considerable security risks and should only be used if the distribution
169 understands and accepts the risks.
171 * CVE-2013-0242 Buffer overrun in regexp matcher has been fixed (Bugzilla
172 #15078).
174 * CVE-2013-1914 Stack overflow in getaddrinfo with many results has been
175 fixed (Bugzilla #15330).
177 * Add support for calling C++11 thread_local object destructors on thread
178 and program exit. This needs compiler support for offloading C++11
179 destructor calls to glibc.
181 * Improved worst case performance of libm functions with double inputs and
182 output.
184 * Support for priority inherited mutexes in pthread condition variables on
185 non-x86 architectures.
187 * Port to Xilinx MicroBlaze contributed by David Holsgrove.
189 * Optimized string functions for AArch64. Implemented by Marcus Shawcroft.
191 * Optimized string functions for ARM. Implemented by Will Newton and
192 Richard Henderson.
194 * Optimized libm functions for SPARC. Implemented by David S. Miller.
196 * Support for building more of ARM glibc as Thumb-2 code. Implemented by
197 Richard Henderson.
199 * Support for building most of MIPS glibc as MIPS16 code. Implemented by
200 Chung-Lin Tang, Maciej W. Rozycki and Maxim Kuvyrkov.
202 * Added a benchmark framework to track performance of functions in glibc.
204 * New <math.h> macro named issignaling to check for a signaling NaN (sNaN).
205 It is based on draft TS 18661 and currently enabled as a GNU extension.
207 * On Linux, the clock function now uses the clock_gettime system call
208 for improved precision, rather than old times system call.
210 * Added support for version-3 tz format files. This is needed when using
211 the tz database release 2013e or later, and affects a few unusual cases --
212 currently only TZ='America/Godthab' for time stamps after 2037.
214 * Added new API functions pthread_getattr_default_np and
215 pthread_setattr_default_np to get and set the default pthread
216 attributes of a process.
218 * Added support for TSX lock elision for pthread mutexes on i386 and x86-64.
219 This may improve lock scaling of existing programs on TSX capable systems.
220 When the --enable-lock-elision=yes parameter is specified at configure
221 time lock elision will be enabled by default for all PTHREAD_MUTEX_DEFAULT
222 mutexes.
224 * Support added for AT_HWCAP2 (to coincide with Linux kernel 3.10
225 availability). Implemented by Ryan S. Arnold.
227 * Support added for POWER8 platform. Implemented by Ryan S. Arnold.
228 \f
229 Version 2.17
231 * The following bugs are resolved with this release:
233 1349, 3439, 3479, 3665, 5044, 5246, 5298, 5400, 6530, 6677, 6778, 6808,
234 9685, 9914, 10014, 10038, 10114, 10191, 10631, 10873, 11438, 11607, 11638,
235 11741, 12140, 13013, 13412, 13542, 13601, 13603, 13604, 13629, 13679,
236 13696, 13698, 13717, 13741, 13759, 13761, 13763, 13881, 13939, 13950,
237 13952, 13966, 14042, 14047, 14090, 14150, 14151, 14152, 14154, 14157,
238 14166, 14173, 14195, 14197, 14237, 14246, 14251, 14252, 14283, 14298,
239 14303, 14307, 14328, 14331, 14336, 14337, 14347, 14349, 14368, 14376,
240 14417, 14447, 14459, 14476, 14477, 14501, 14505, 14510, 14516, 14518,
241 14519, 14530, 14532, 14538, 14543, 14544, 14545, 14557, 14562, 14568,
242 14576, 14579, 14583, 14587, 14595, 14602, 14610, 14621, 14638, 14645,
243 14648, 14652, 14660, 14661, 14669, 14672, 14683, 14694, 14716, 14719,
244 14743, 14767, 14783, 14784, 14785, 14793, 14796, 14797, 14801, 14803,
245 14805, 14807, 14811, 14815, 14821, 14822, 14824, 14828, 14831, 14833,
246 14835, 14838, 14856, 14863, 14865, 14866, 14868, 14869, 14871, 14872,
247 14879, 14889, 14893, 14898, 14914.
249 * Optimization of memcpy for MIPS.
251 * CVE-2011-4609 svc_run() produces high cpu usage when accept fails with
252 EMFILE has been fixed (Bugzilla #14889).
254 * The add-on ports collection is now distributed in the "ports" subdirectory
255 of the main GNU C Library distribution, rather than separately.
257 * Port to ARM AArch64 contributed by Linaro.
259 * Support for STT_GNU_IFUNC symbols added for s390 and s390x.
260 Optimized versions of memcpy, memset, and memcmp added for System z10 and
261 zEnterprise z196.
262 Implemented by Andreas Krebbel.
264 * The new function secure_getenv allows secure access to the environment,
265 returning NULL if running in a SUID/SGID process. This function replaces
266 the internal function __secure_getenv.
268 * SystemTap static probes have been added into the dynamic linker.
269 Implemented by Gary Benson.
271 * Optimizations of string functions strstr, strcasestr and memmem.
272 Implemented by Maxim Kuvyrkov.
274 * The minimum Linux kernel version that this version of the GNU C Library
275 can be used with is 2.6.16.
277 * Optimizations of string functions memchr, wcschr, wcscpy, and wcsrchr for
278 powerpc POWER7. Implemented by Will Schmidt.
280 * New configure option --disable-nscd builds the C library such that it
281 never attempts to contact the Name Service Caching Daemon (nscd).
282 New configure option --disable-build-nscd avoids building nscd itself;
283 this is the default if --disable-nscd is used.
285 * Improved support for cross-compilation, including cross-testing and
286 bootstrap builds without a previously built glibc.
288 * Several testsuite tests are now able to test multiple IFUNC variants of an
289 interface, rather than just testing the one that would be chooen by
290 default.
292 * New configure options --with-bugurl and --with-pkgversion, for
293 distributors to use to embed their bug-reporting and package version
294 information in --help and --version output.
296 * The ttyname and ttyname_r functions on Linux now fall back to searching for
297 the tty file descriptor in /dev/pts or /dev if /proc is not available. This
298 allows creation of chroots without the procfs mounted on /proc.
300 * The `crypt' function now fails if passed salt bytes that violate the
301 specification for those values. On Linux, the `crypt' function will
302 consult /proc/sys/crypto/fips_enabled to determine if "FIPS mode" is
303 enabled, and fail on encrypted strings using the MD5 or DES algorithm
304 when the mode is enabled.
306 * The `clock_*' suite of functions (declared in <time.h>) is now available
307 directly in the main C library. Previously it was necessary to link with
308 -lrt to use these functions. This change has the effect that a
309 single-threaded program that uses a function such as `clock_gettime' (and
310 is not linked with -lrt) will no longer implicitly load the pthreads
311 library at runtime and so will not suffer the overheads associated with
312 multi-thread support in other code such as the C++ runtime library.
314 * New locales: ayc_PE, doi_IN, ia_FR, mni_IN, nhn_MX, niu_NU, niu_NZ,
315 sat_IN, and szl_PL.
316 \f
317 Version 2.16
319 * The following bugs are resolved with this release:
321 174, 208, 350, 369, 411, 706, 766, 887, 2074, 2541, 2547, 2548, 2550,
322 2551, 2552, 2553, 2554, 2562, 2563, 2565, 2566, 2570, 2576, 2636, 2678,
323 3335, 3440, 3748, 3768, 3866, 3868, 3906, 3976, 3992, 4026, 4108, 4596,
324 4822, 5077, 5461, 5805, 5993, 6471, 6486, 6578, 6649, 6730, 6770, 6794,
325 6884, 6890, 6894, 6895, 6907, 6911, 6959, 7064, 9739, 9902, 10110, 10135,
326 10140, 10153, 10210, 10254, 10346, 10375, 10545, 10716, 10846, 11174,
327 11261, 11322, 11365, 11451, 11494, 11521, 11677, 11837, 11959, 12047,
328 12097, 12193, 12194, 12297, 12298, 12301, 12340, 12354, 12416, 12495,
329 13058, 13223, 13361, 13525, 13526, 13527, 13528, 13529, 13530, 13531,
330 13532, 13533, 13547, 13551, 13552, 13553, 13555, 13556, 13559, 13563,
331 13566, 13576, 13579, 13583, 13592, 13594, 13613, 13618, 13637, 13656,
332 13658, 13673, 13691, 13695, 13704, 13705, 13706, 13718, 13726, 13738,
333 13739, 13743, 13750, 13758, 13760, 13761, 13775, 13786, 13787, 13792,
334 13806, 13824, 13840, 13841, 13844, 13846, 13848, 13851, 13852, 13854,
335 13871, 13872, 13873, 13879, 13882, 13883, 13884, 13885, 13886, 13892,
336 13895, 13908, 13910, 13911, 13912, 13913, 13914, 13915, 13916, 13917,
337 13918, 13919, 13920, 13921, 13922, 13923, 13924, 13926, 13927, 13928,
338 13938, 13941, 13942, 13954, 13955, 13956, 13963, 13967, 13968, 13970,
339 13973, 13979, 13983, 13986, 13996, 14012, 14027, 14033, 14034, 14036,
340 14040, 14043, 14044, 14048, 14049, 14050, 14053, 14055, 14059, 14064,
341 14075, 14080, 14083, 14103, 14104, 14109, 14112, 14117, 14122, 14123,
342 14134, 14153, 14183, 14188, 14199, 14210, 14218, 14229, 14241, 14273,
343 14277, 14278.
345 * Support for the x32 ABI on x86-64 added. The x32 target is selected by
346 configuring glibc with:
347 BUILD_CC='gcc' CC='gcc -mx32' CXX='g++ -mx32'
348 Visit <http://sites.google.com/site/x32abi/> for more x32 ABI info.
349 Implemented by H.J. Lu.
351 * ISO C11 support:
353 + define static_assert
355 + do not declare gets
357 + declare at_quick_exit and quick_exit also for ISO C11
359 + aligned_alloc. NB: The code is deliberately allows the size parameter
360 to not be a multiple of the alignment. This is a moronic requirement
361 in the standard but it is only a requirement on the caller, not the
362 implementation.
364 + timespec_get added
366 + uchar.h support added
368 + CMPLX, CMPLXF, CMPLXL added
370 Implemented by Ulrich Drepper.
372 * Support for the IA-64 has been moved to ports.
374 * Remove support for anything but ELF binary format
376 * Checking versions of poll, ppoll added.
377 Implemented by Ulrich Drepper.
379 * More generic and 64-bit performance optimizations to math functions.
380 Implemented by Ulrich Drepper.
382 * New configure option --enable-obsolete-rpc makes the deprecated RPC
383 headers and functions available at compile time as they were before
384 version 2.14. This option will be removed at some time in the future
385 after the TI-RPC library becomes fully sufficient for the needs of
386 existing applications.
388 * Compatibility code for Linux kernel versions before 2.4 has been removed.
389 Note that glibc is not expected to work with any Linux kernel version
390 before 2.6.
392 * New header <sys/auxv.h> and function getauxval allowing easy access to
393 the AT_* key-value pairs passed from the Linux kernel. The header also
394 defines the HWCAP_* bits associated with the AT_HWCAP key.
396 * New locales: mag_IN
398 * New configure option --enable-systemtap builds SystemTap static probes
399 into libc for setjmp and longjmp and into libpthread for various operations.
400 So far the setjmp/longjmp probes and some of the libpthread probes are
401 provided only for i*86 and x86_64.
402 Implemented by Roland McGrath and Rayson Ho.
404 * Optimized expf for x86-32 and x86-64. Implemented by Liubov Dmitrieva.
406 * More optimized functions for PowerPC. Implemented by Adhemerval Zanella
407 and Will Schmidt.
409 * More optimized functions for SPARC. Implemented by David S. Miller.
411 * Improved support for cross-compilation, especially bootstrap builds
412 without a previously built glibc.
414 * Ports for the TILE-Gx and TILEPro families of processors. Contributed by
415 Chris Metcalf from Tilera.
417 * Support for the old ARM ABI has been removed from ports. Only the EABI is
418 now supported for ARM processors.
420 * The hard-float variant of the ARM EABI now uses /lib/ld-linux-armhf.so.3
421 as the name of the dynamic linker, to distinguish it from the
422 /lib/ld-linux.so.3 dynamic linker used for the base EABI.
424 * Support for CRIS has been removed from ports.
426 * A new class of installed header has been documented for low-level
427 platform-specific functionality. PowerPC added the first instance with a
428 function to provide time base register access. Contributed by Tulio
429 Magno Quites Machado Filho.
431 * ix86 configurations now install header files that are consistent with
432 what x86-64 configurations install. These same header files can be used
433 for -m32, -m64, or -mx32 builds.
434 Contributed by H.J. Lu.
436 * Math library bug fixes. A thorough audit of all open math library bugs was
437 conducted by Joseph Myers. Significant progress was made on many math
438 library bugs resulting in more accurate exceptions and function results.
439 Many thanks to all those that contributed including Andreas Jaeger for his
440 patch review and work on the x87 trigonometric instruction issues.
442 * Timezone data is no longer installed. Timezone-related binaries and scripts
443 will continue to be installed. Users should obtain their timezone data from
444 their distribution provider or from the tzdata package at
445 <ftp://munnari.oz.au/pub/>.
446 \f
447 Version 2.15
449 * The following bugs are resolved with this release:
451 6779, 6783, 9696, 10103, 10709, 11589, 11929, 12403, 12786, 12840, 12847,
452 12868, 12852, 12874, 12885, 12892, 12906, 12907, 12922, 12935, 12962,
453 13007, 13021, 13061, 13062, 13067, 13068, 13085, 13088, 13090, 13092,
454 13096, 13114, 13118, 13123, 13134, 13138, 13147, 13150, 13166, 13179,
455 13185, 13189, 13192, 13268, 13276, 13282, 13291, 13305, 13328, 13335,
456 13337, 13344, 13358, 13367, 13413, 13416, 13423, 13439, 13446, 13472,
457 13484, 13506, 13515, 13523, 13524, 13538, 13540
459 * New program pldd to list loaded object of a process
460 Implemented by Ulrich Drepper.
462 * Add nss_db support back to glibc. No more dependency on Berkeley db
463 and support for initgroups lookups.
464 Implemented by Ulrich Drepper.
466 * Optimized strcpy, strncpy, stpcpy, stpncpy for SSE2 and SSSE3 on x86-32.
467 Contributed by HJ Lu.
469 * Improved strcpy, strncpy, stpcpy, stpncpy for SSE2 and SSSE3 on x86-64.
470 Contributed by HJ Lu.
472 * Optimized strcat, strncat on x86-64 and optimized wcscmp, wcslen, strnlen
473 on x86-32 and x86-64.
474 Contributed by Liubov Dmitrieva.
476 * Optimized strchr and strrchr for SSE on x86-32.
477 Contributed by Liubov Dmitrieva.
479 * Optimized memchr, memrchr, rawmemchr, memcmp, wmemcmp, wcschr, wcscpy
480 for x86-64 and x86-32.
481 Contributed by Liubov Dmitrieva.
483 * New interfaces: scandirat, scandirat64
484 Implemented by Ulrich Drepper.
486 * Checking versions of FD_SET, FD_CLR, and FD_ISSET added.
487 Implemented by Ulrich Drepper.
489 * nscd now also caches the netgroup database.
490 Implemented by Ulrich Drepper.
492 * Integrate libm with gcc's -ffinite-math-only option.
493 Implemented by Ulrich Drepper.
495 * Lots of generic, 64-bit, and x86-64-specific performance optimizations
496 to math functions. Implemented by Ulrich Drepper.
498 * Optimized strcasecmp and strncasecmp for AVX on x86-64.
499 Implemented by Ulrich Drepper.
501 * New Linux interfaces: process_vm_readv, process_vm_writev
503 * Optimized strcasecmp and strncasecmp for SSSE3 and SSE4.2 on x86-32.
504 Implemented by Ulrich Drepper.
506 * Optimized nearbyint and strcasecmp for PPC.
507 Implemented by Adhemerval Zanella.
509 * New locales: bho_IN, unm_US, es_CU, ta_LK
510 \f
511 Version 2.14
513 * The following bugs are resolved with this release:
515 386, 6420, 7101, 9730, 9732, 9809, 10138, 10149, 10157, 11099, 11257,
516 11258, 11487, 11532, 11558, 11578, 11634, 11653, 11668, 11697, 11724,
517 11781, 11799, 11820, 11837, 11857, 11869, 11892, 11895, 11901, 11945,
518 11947, 11952, 11987, 12052, 12083, 12158, 12178, 12200, 12346, 12350,
519 12393, 12420, 12432, 12445, 12449, 12453, 12454, 12460, 12469, 12489,
520 12509, 12510, 12511, 12518, 12527, 12541, 12545, 12551, 12582, 12583,
521 12587, 12597, 12601, 12611, 12625, 12626, 12631, 12650, 12653, 12655,
522 12660, 12671, 12681, 12684, 12685, 12711, 12713, 12714, 12717, 12723,
523 12724, 12734, 12738, 12746, 12766, 12775, 12777, 12782, 12788, 12792,
524 12795, 12811, 12813, 12814, 12841
526 * The RPC implementation in libc is obsoleted. Old programs keep working
527 but new programs cannot be linked with the routines in libc anymore.
528 Programs in need of RPC functionality must be linked against TI-RPC.
529 The TI-RPC implementation is IPv6 enabled and there are other benefits.
531 Visible changes of this change include (obviously) the inability to link
532 programs using RPC functions without referencing the TI-RPC library and the
533 removal of the RPC headers from the glibc headers.
534 Implemented by Ulrich Drepper.
536 * New Linux interfaces: clock_adjtime, name_to_handle_at, open_by_handle_at,
537 syncfs, setns, sendmmsg
539 * New locales: os_RU, bem_ZA, en_ZA, ff_SN, sw_KE, sw_TZ, lb_LU, wae_CH,
540 yue_HK, lij_IT, mhr_RU
542 * New encodings: CP770, CP771, CP772, CP773, CP774
544 * New program sotruss to trace calls through PLTs
545 Implemented by Ulrich Drepper.
547 * The malloc hook implementation is marked deprecated and will be removed
548 from the default implementation in the next version. The design never
549 worked ever since the introduction of threads. Even programs which do
550 not create threads themselves can use multiple threads created internally.
551 \f
552 Version 2.13
554 * The following bugs are resolved with this release:
556 3268, 6812, 7066, 10085, 10484, 10563, 10851, 11149, 11155, 11577, 11611,
557 11640, 11655, 11701, 11840, 11856, 11883, 11903, 11904, 11968, 11979,
558 12005, 12037, 12067, 12077, 12078, 12092, 12093, 12107, 12108, 12113,
559 12140, 12159, 12167, 12191, 12194, 12201, 12204, 12205, 12207, 12348,
560 12378, 12394, 12397
562 * New Linux interfaces: prlimit, prlimit64, fanotify_init, fanotify_mark
564 * POWER7 optimizations: memset, memcmp, strncmp
566 * New optimized string functions for x86-64: strnlen (SSE2),
567 strcasecmp (SSE2, SSSE3, SSE4.2), strncasecmp (SSE2, SSSE3, SSE4.2)
568 Implemented by Ulrich Drepper.
569 \f
570 Version 2.12
572 * The following bugs are resolved with this release:
574 3662, 4457, 5553, 10162, 10401, 10414, 10554, 10824, 10864, 10915,
575 10918, 10936, 10939, 10958, 10968, 10969, 10972, 10992, 11000, 11001,
576 11007, 11010, 11027, 11039, 11040, 11041, 11043, 11046, 11056, 11070,
577 11093, 11115, 11125, 11126, 11127, 11134, 11141, 11149, 11183, 11184,
578 11185, 11186, 11187, 11188, 11189, 11190, 11191, 11192, 11193, 11194,
579 11200, 11230, 11235, 11242, 11254, 11258, 11271, 11272, 11276, 11279,
580 11287, 11292, 11319, 11332, 11333, 11387, 11389, 11390, 11394, 11397,
581 11410, 11438, 11449, 11470, 11471, 11520, 11537, 11538, 11571
583 * New interfaces: pthread_getname_np, pthread_setname_np
585 * New Linux interface: recvmmsg
587 * STT_GNU_IFUNC implemented for Sparc by David Miller.
589 * The dynamic linker now recognizes supported ABI versions from the
590 EI_ABIVERSION field in the ELF header.
591 Implemented by Ulrich Drepper.
593 * New NIS mode selector ADJUNCT_AS_SHADOW. The passwd.adjunct.byname table
594 will not be used to fill in password fields in the passwd.byname replies.
595 Instead it is used to synthesize the shadow.byname table, should it be
596 missing. This is a useful mode in some installations involving Solaris.
597 Implemented by Ulrich Drepper.
599 * New locales: kok_IN, sq_MK, cv_RU
600 \f
601 Version 2.11
603 * The following bugs are resolved with this release:
605 3270, 7094, 9924, 9986, 10011, 10085, 10107, 10159, 10162, 10166, 10183,
606 10195, 10196, 10200, 10203, 10207, 10211, 10213, 10217, 10221, 10229,
607 10262, 10286, 10312, 10315, 10319, 10349, 10360, 10391, 10402, 10416,
608 10418, 10422, 10425, 10446, 10448, 10452, 10540, 10553, 10560, 10564,
609 10609, 10643, 10692, 10713, 10717, 10730, 10731, 10742, 10780, 10784,
610 10789, 10817, 10823, 10840, 10847
612 * New interfaces: execvpe, pthread_sigqueue, mkstemps, mkstemps64, mkostemps,
613 mkostemps64
614 Implemented by Ulrich Drepper.
616 * Checking version of longjmp added that fails if an uninitialized stack
617 frame would be created. Implemented by Ulrich Drepper.
619 * STT_GNU_IFUNC is now supported in static executables.
620 Implemented by H.J. Lu.
622 * STT_GNU_IFUNC implemented for PPC by Alan Modra.
624 * New optimized string functions for x86-64: strstr, strcasestr, memcmp,
625 strcspn, strpbrk, strspn, strcpy, stpcpy, strncpy, strcmp (SSE2, SSE4.2),
626 strncmp (SSE2, SSE4.2), strchr (SSE4.2), strrchr (SSE4.2).
627 Contributed by H.J. Lu.
629 strlen, rawmemchr, strcmp (SSSE3), strncmp (SSSE3).
630 Implemented by Ulrich Drepper.
632 * New optimized string functions for x86: strlen, strcspn, strspn, strpbrk,
633 strstr, strcasestr.
634 Contributed by H.J. Lu.
636 * Support for fma instruction in AVX on x86-64.
637 Implemented by H.J. Lu and Ulrich Drepper.
639 * AVX support in x86-64 auditing support in ld.so.
640 Implemented by H.J. Lu.
642 * STB_GNU_UNIQUE support added.
643 Implemented by Ulrich Drepper.
645 * Implement second fallback mode for optimized DNS lookup for even more
646 broken environments. If two requests from the same port are not
647 handled correctly close the socket and open a new one before sending
648 the second request. The 'single-request-reopen' option in /etc/resolv.conf
649 can be used to select this mode right away, instead of rediscovering the
650 necessity is every process again.
651 Implemented by Ulrich Drepper.
653 * New resolver flag RES_USE_DNSSEC to enable use of verified lookup.
654 Implemented by Adam Tkac.
656 * Optimized iconv conversions for S390x.
657 Implemented by Andreas Krebbel.
659 * Using condvars with PI mutexes is now more efficient due to kernel
660 support for requeueing to PI futexes. NPTL support added for x86-64.
661 Implemented by Ulrich Drepper.
663 * New locales: ps_AF, my_MM
664 \f
665 Version 2.10
667 * The following bugs are resolved with this release:
669 697, 5381, 5807, 6411, 6545, 7040, 7058, 7067, 7080, 7083, 7095, 7098,
670 9677, 9694, 9697, 9701, 9704, 9705, 9706, 9720, 9726, 9730, 9733, 9736,
671 9741, 9750, 9753, 9759, 9781, 9791, 9793, 9823, 9833, 9844, 9880, 9881,
672 9891, 9893, 9895, 9913, 9916, 9920, 9948, 9955, 9957, 9963, 9985, 10052,
673 10069, 10086, 10087, 10090, 10092, 10093, 10100, 10118, 10128
675 * New interfaces: preadv, preadv64, pwritev, pwritev64, malloc_info
676 Implemented by Ulrich Drepper.
678 * New Linux interfaces: accept4, fallocate, fallocate64.
679 Implemented by Ulrich Drepper.
681 * Correct declarations of string function when used in C++ code. This
682 could lead to compile errors for invalid C++ code.
684 * XPG7/POSIX 2008 compilation environment. Many GNU-specific functions are
685 now in POSIX.
687 * New POSIX 2008 interface: psiginfo
688 Implemented by Ulrich Drepper.
690 * New ISO C++1x interfaces: quick_exit, at_quick_exit
691 Implemented by Ulrich Drepper.
693 * Support for selecting between multiple function definitions at runtime
694 using STT_GNU_IFUNC symbols. Implemented by Ulrich Drepper.
696 * The libcrypt library can now use the hash function implementations in
697 NSS. Implemented by Ulrich Drepper.
699 * The malloc implementation can be compiled to be less memory efficient
700 but higher performing in multi-threaded programs.
701 Implemented by Ulrich Drepper.
703 * New locales: nan_TW@latin, ks_IN
705 * Faster strlen, strchr, strchrnul, strrchr, memchr, and rawmemchr for x86-64.
706 Implemented by Ulrich Drepper.
708 * Extended printf hook support. It is possible to use user-defined types
709 and extend existing format specifiers.
710 Implemented by Ulrich Drepper.
712 * Handling for group shadow files has been added.
713 Implemented by Ulrich Drepper.
715 * DNS IPv4-IPv6 parallel lookup now deals better with broken DNS
716 servers (the case, e.g., for some people using the built-in DNS
717 server in ADSL modems/routers). There is a once-per-process timeout
718 in case of a broken server. To avoid it, users can run nscd or put
719 'options single-request' in /etc/resolv.conf.
720 Implemented by Ulrich Drepper.
721 \f
722 Version 2.9
724 * The following bugs are resolved with this release:
726 3406, 5209, 5210, 5381, 5794, 5814, 5911, 6428, 6438, 6442, 6447, 6461,
727 6472, 6505, 6544, 6589, 6612, 6634, 6653, 6654, 6657, 6698, 6712, 6713,
728 6719, 6723, 6724, 6740, 6763, 6771, 6790, 6791, 6817, 6824, 6839, 6843,
729 6845, 6856, 6857, 6860, 6867, 6875, 6919, 6920, 6942, 6947, 6955, 6966,
730 6968, 6974, 6980, 6995, 7008, 7009, 7029
732 * Unified lookup for getaddrinfo: IPv4 and IPv6 addresses are now looked
733 up at the same time. Implemented by Ulrich Drepper.
735 * TLS descriptors for LD and GD on x86 and x86-64.
736 Implemented by Alexandre Oliva.
738 * getaddrinfo now handles DCCP and UDPlite.
739 Implemented by Ulrich Drepper.
741 * New fixed-size conversion macros: htobe16, htole16, be16toh, le16toh,
742 htobe32, htole32, be32toh, le32toh, htobe64, htole64, be64toh, le64toh.
743 Implemented by Ulrich Drepper.
745 * New implementation of memmem, strstr, and strcasestr which is O(n).
746 Implemented by Eric Blake.
748 * New Linux interfaces: inotify_init1, dup3, epoll_create1, pipe2
750 * Implement "e" option for popen to open file descriptor with the
751 close-on-exec flag set. Implemented by Ulrich Drepper.
753 * Implement "b" mode for fmemopen. In this mode writes writes don't
754 implicitly add a NUL byte and seeks from the end of the buffer really
755 use the buffer end, not the string length as the basis.
756 Implemented by Ulrich Drepper.
758 * Many functions, exported and internal, now atomically set the close-on-exec
759 flag when run on a sufficiently new kernel. Implemented by Ulrich Drepper.
761 * Sorting rules for some Indian languages (Kannada, Gurumukhi, Telugu,
762 Sinhala)
763 Implemented by Pravin Satpute.
765 * New locales: sd_IN, sd_IN@devanagari, ks_IN@devanagari, ht_HT, en_AG, nl_AW.
766 \f
767 Version 2.8
769 * The following bugs are resolved with this release:
771 2549, 3112, 4314, 4407, 4997, 5012, 5040, 5112, 5204, 5208, 5209, 5220,
772 5222, 5224, 5225, 5237, 5238, 5240, 5245, 5277, 5346, 5375, 5378, 5382,
773 5424, 5427, 5428, 5435, 5436, 5439, 5441, 5442, 5443, 5451, 5452, 5454,
774 5455, 5463, 5464, 5465, 5475, 5477, 5478, 5520, 5541, 5545, 5553, 5600,
775 5602, 5607, 5614, 5627, 5628, 5736, 5737, 5741, 5753, 5760, 5762, 5768,
776 5774, 5777, 5778, 5779, 5786, 5790, 5818, 5854, 5857, 5903, 5939, 5979,
777 5983, 5995, 5998, 6004, 6007, 6020, 6021, 6024, 6040, 6042
779 * New locales: bo_CN, bo_IN, shs_CA.
781 * New encoding: HP-ROMAN9, HP-GREEK8, HP-THAI8, HP-TURKISH8.
783 * Sorting rules for some Indian languages (Devanagari and Gujarati).
784 Implemented by Pravin Satpute.
786 * IPV6 addresses in /etc/resolv.conf can now have a scope ID
788 * nscd caches now all timeouts for DNS entries
789 Implemented by Ulrich Drepper.
791 * nscd is more efficient and wakes up less often.
792 Implemented by Ulrich Drepper.
794 * More checking functions: asprintf, dprintf, obstack_printf, vasprintf,
795 vdprintf, and obstack_vprintf.
796 Implemented by Jakub Jelinek.
798 * Faster memset for x86-64.
799 Implemented by Harsha Jagasia and H.J. Lu.
801 * Faster memcpy on x86.
802 Implemented by Ulrich Drepper.
804 * ARG_MAX is not anymore constant on Linux. Use sysconf(_SC_ARG_MAX).
805 Implemented by Ulrich Drepper.
807 * Faster sqrt and sqrtf implemention for some PPC variants.
808 Implemented by Steven Munroe.
809 \f
810 Version 2.7
812 * The following bugs are resolved with this release:
814 4125, 4126, 4178, 4359, 4407, 4512, 4514, 4525, 4554, 4556, 4557, 4566,
815 4582, 4586, 4588, 4599, 4610, 4647, 4702, 4705, 4726, 4745, 4772, 4773,
816 4775, 4776, 4792, 4813, 4814, 4816, 4833, 4858, 4860, 4896, 4905, 4925,
817 4936, 4937, 4938, 4941, 4946, 4963, 4972, 5010, 5028, 5043, 5058, 5063,
818 5071, 5103, 5104, 5112, 5113, 5184, 5186
820 * More checking functions: fread, fread_unlocked, open*, mq_open.
821 Implemented by Jakub Jelinek and Ulrich Drepper.
823 * Extend fortification to C++. Implemented by Jakub Jelinek.
825 * Implement 'm' modifier for scanf. Add stricter C99/SUS compliance
826 by not recognizing 'a' as a modifier when those specs are requested.
827 Implemented by Jakub Jelinek.
829 * PPC optimizations to math and string functions.
830 Implemented by Steven Munroe.
832 * New interfaces: mkostemp, mkostemp64. Like mkstemp* but allow additional
833 options to be passed. Implemented by Ulrich Drepper.
835 * More CPU set manipulation functions. Implemented by Ulrich Drepper.
837 * New Linux interfaces: signalfd, eventfd, eventfd_read, and eventfd_write.
838 Implemented by Ulrich Drepper.
840 * Handle private futexes in the NPTL implementation.
841 Implemented by Jakub Jelinek and Ulrich Drepper.
843 * Add support for O_CLOEXEC. Implement in Hurd. Use throughout libc.
844 Implemented by Roland McGrath and Ulrich Drepper.
846 * Linux/x86-64 vDSO support. Implemented by Ulrich Drepper.
848 * SHA-256 and SHA-512 based password encryption.
849 Implemented by Ulrich Drepper.
851 * New locales: ber_DZ, ber_MA, en_NG, fil_PH, fur_IT, fy_DE, ha_NG, ig_NG,
852 ik_CA, iu_CA, li_BE, li_NL, nds_DE, nds_NL, pap_AN, sc_IT, tk_TM, ug_CN,
853 yo_NG.
855 + New iconv modules: MAC-CENTRALEUROPE, ISO-8859-9E, KOI8-RU.
856 Implemented by Ulrich Drepper.
857 \f
858 Version 2.6
860 * The following bugs are resolved with this release:
862 3156, 3213, 3285, 3291, 3306, 3313, 3320, 3322, 3325, 3326, 3334, 3348,
863 3352, 3363, 3369, 3426, 3427, 3429, 3451, 3458, 3465, 3480, 3483, 3493,
864 3514, 3515, 3559, 3632, 3664, 3673, 3674, 3745, 3747, 3818, 3840, 3842,
865 3851, 3855, 3884, 3885, 3902, 3905, 3919, 3944, 3954, 3955, 3957, 3991,
866 3995, 3996, 4024, 4040, 4069, 4070, 4074, 4076, 4096, 4101, 4102, 4114,
867 4130, 4131, 4181, 4276, 4306, 4342, 4344, 4349, 4364, 4368, 4381, 4392,
868 4403, 4405, 4406, 4411, 4438, 4439, 4455, 4456, 4465, 4512, 4514, 4586,
869 4702, 4858
871 * New Linux interfaces: epoll_pwait, sched_getcpu.
873 * New generic interfaces: strerror_l.
875 * nscd can now cache the services database. Implemented by Ulrich Drepper.
876 \f
877 Version 2.5
879 * The following bugs are resolved with this release:
881 39, 68, 192, 352, 388, 531, 935, 1006, 1201, 1203, 1386, 1782, 1783, 1784,
882 1785, 1786, 1787, 1951, 1974, 1996, 2072, 2098, 2125, 2134, 2158, 2182,
883 2349, 2376, 2386, 2389, 2415, 2418, 2420, 2423, 2450, 2451, 2466, 2472,
884 2473, 2477, 2498, 2499, 2501, 2502, 2505, 2507, 2508, 2509, 2517, 2526,
885 2569, 2571, 2592, 2611, 2625, 2632, 2644, 2662, 2680, 2683, 2684, 2693,
886 2695, 2703, 2734, 2751, 2764, 2766, 2775, 2792, 2821, 2823, 2832, 2841,
887 2843, 2883, 2892, 2908, 2914, 2926, 2961, 2978, 2980, 2987, 2997, 2998,
888 3013, 3018, 3034, 3040, 3044, 3123, 3124, 3137, 3138, 3143, 3155, 3189,
889 3225, 3251, 3252, 3253, 3273
891 * For Linux, the sorting of addresses returned by getaddrinfo now also
892 handles rules 3, 4, and 7 from RFC 3484. I.e., all rules are handled.
893 Implemented by Ulrich Drepper.
895 * Allow system admin to configure getaddrinfo with the /etc/gai.conf file.
896 Implemented by Ulrich Drepper.
898 * New Linux interfaces: splice, tee, sync_file_range, vmsplice.
900 * New iconv module for MIK. Contributed by Alexander Shopov.
902 * For sites with broken group and/or passwd database, the auto-propagate
903 option of nscd can prevent creating ID lookup entries from the results
904 of a name lookup and vice versa. This usually is no problem but some
905 site might have problems with the default behavior.
906 Implemented by Ulrich Drepper.
908 * Iterating over entire database in NIS can be slow. With the
909 SETENT_BATCH_READ option in /etc/default/nss a system admin can decide
910 to trade time for memory. The entire database will be read at once.
911 Implemented by Ulrich Drepper.
913 * The interfaces introduced in RFC 3542 have been implemented by
914 Ulrich Drepper.
916 * Support for the new ELF hash table format was added by Ulrich Drepper.
918 * Support for priority inheritance mutexes added by Jakub Jelinek and
919 Ulrich Drepper.
921 * Support for priority protected mutexes added by Jakub Jelinek.
923 * New locales: nr_ZA, pa_PK, ca_AD, ca_FR, ca_IT, el_CY, tr_CY, as_IN,
924 or_IN, csb_PL, fy_NL, sr_ME.
925 \f
926 Version 2.4
928 * More overflow detection functions.
930 * New iconv converters for IBM1025, IBM1122, IBM1137, IBM1153,
931 IBM1154, IBM1155, IBM1156, IBM1157, and IBM1158 contributed by Jiro Sekiba.
933 More converters for IBM803, IBM901, IBM902, IBM921, IBM1008, IBM1097,
934 IBM1112, IBM1123, IBM1130, IBM1140, IBM1141, IBM1142, IBM1143, IBM1144,
935 IBM1145, IBM1146, IBM1147, IBM1148, IBM1149, IBM1166, IBM1167, IBM4517,
936 IBM4899, IBM4909, IBM4971, IBM5347, IBM9030, IBM9066, IBM9448, IBM12712,
937 IBM16804, IBM1364, IBM1371, IBM1388, IBM1390, and IBM1399 contributed
938 by Masahide Washizawa.
940 * It is now possible to install audit libraries for the dynamic linker using
941 LD_AUDIT. Implemented by Ulrich Drepper.
943 * The LinuxThreads add-on, providing pthreads on Linux 2.4 kernels, is no
944 longer supported. The new NPTL implementation requires Linux 2.6 kernels.
945 For a libc and libpthread that works well on Linux 2.4 kernels, we
946 recommend using the stable 2.3 branch.
948 * The new function open_wmemstream acts like open_memstream,
949 but uses a wchar_t wide character buffer.
951 * The new function ppoll is an improved version of poll, similar to pselect.
953 * New interfaces: fdopendir, openat, fstatat, fchmodat, fchownat,
954 futimesat, faccessat, mkdirat, mkfifoat, mknodat,
955 renameat, unlinkat, linkat, symlinkat, readlinkat.
957 * New Linux kernel system calls: unshare,
958 inotify_init, inotify_add_watch, inotify_rm_watch.
960 * The euidaccess function is now also known by the alias eaccess,
961 for compatibility with some other systems.
963 * Timezone data updated to 2006b version.
964 \f
965 Version 2.3.6
967 * The following bugs are resolved with this release:
969 38, 253, 549, 622, 653, 721, 758, 851, 877, 915, 934, 955, 961,
970 1016, 1037, 1076, 1079, 1080, 1081, 1082, 1083, 1084, 1085, 1086,
971 1087, 1088, 1090, 1091, 1092, 1093, 1094, 1095, 1096, 1097, 1098,
972 1099, 1100, 1101, 1102, 1103, 1104, 1105, 1106, 1107, 1108, 1109,
973 1110, 1111, 1112, 1113, 1125, 1137, 1138, 1249, 1250, 1251, 1252,
974 1253, 1254, 1350, 1358, 1394, 1438, 1498, 1534
976 Visit <http://sources.redhat.com/bugzilla/> for the details of each bug.
978 * As of this release, GCC 4 can be used to compile the C Library.
980 * Timezone data updated to 2005m version.
981 \f
982 Version 2.3.5
984 * The following bugs are resolved with this release:
986 284, 592, 602, 626, 633, 640, 650, 661, 671, 681, 693, 700, 710, 719,
987 722, 723, 725, 726, 727, 728, 729, 730, 731, 732, 733, 734, 735, 736,
988 737, 738, 739, 740, 741, 742, 743, 744, 745, 765, 767, 768, 769, 776,
989 777, 787, 821, 822, 823, 825
991 Visit <http://sources.redhat.com/bugzilla/> for the details of each bug.
992 \f
993 Version 2.3.4
995 * Support for RFC 3678. Real implementations exist only for Linux so far.
996 Implemented by Ulrich Drepper.
998 * nscd can now cache entries persistently. Expiring entries are reloaded.
999 For speedups the cache can be shared in memory with client processes.
1000 Implemented by Ulrich Drepper.
1002 * nscd can now perform SELinux checks.
1003 Implemented by Matthew Rickard <mjricka@epoch.ncsc.mil>.
1005 * getaddrinfo queries are now cached. Canonical name lookup is performed
1006 efficiently.
1007 Implemented by Ulrich Drepper.
1009 * The nothrow function attribute is used when headers are used by gcc when
1010 compiling C code. This can avoid significant amounts of exception
1011 handling data.
1013 * The malloc functions perform more error checking and are stricter when
1014 it comes to reacting on errors. The default action is to terminate
1015 the process after showing an error message. Implemented by Ulrich Drepper.
1017 * Reverse lookups of IPv6 addresses does not use bit string or .ip6.int
1018 lookups anymore unless explicitly requested. Implemented by Ulrich Drepper.
1020 * Namespaces in ld.so are implemented. DSOs can be loaded in separate
1021 namespaces using the new function dlmopen(). This feature is of course,
1022 like most other dynamic loading functionality, not available in statically
1023 linked applications. Implemented by Ulrich Drepper.
1025 * Low-overhead boundary checking variants of string and some stdio functions
1026 were added. These are to be used in conjunction with a gcc patch by
1027 Jakub Jelinek which adds calls to these functions if possible.
1028 Implemented by Jakub Jelinek and Ulrich Drepper.
1030 * Old code for several operating systems and machine architectures that
1031 have not been in working condition in a long time have been removed from
1032 the main source tree maintained by the GNU C Library's maintainers.
1033 These files are now reside in the separate `ports' source module
1034 that is usable as an add-on when building the library.
1035 \f
1036 Version 2.3.3
1038 * New functions `dladdr1' and `dlinfo' in <dlfcn.h> provide more ways to
1039 interrogate the dynamic linker, compatible with the Solaris interface.
1041 * ELF thread-local storage support (TLS) now works on PowerPC and PowerPC64;
1042 implemented by Paul Mackerras, Steven Munroe, and Roland McGrath.
1044 * getifaddrs now uses the netlink interface on Linux to get its information.
1045 Implemented by Thorsten Kukuk.
1047 * getaddrinfo now implements AI_V4MAPPED, AI_ALL, and AI_ADDRCONF.
1048 Implemented by Ulrich Drepper.
1050 * support for non-executable stacks on x86 has been added. Changes mostly
1051 by Roland McGrath.
1053 * regex is now much faster for multibyte locales. Changes by Jakub Jelinek
1054 and Ulrich Drepper.
1056 * getaddrinfo now performs destination address selection according to
1057 RFC 3484.
1058 \f
1059 Version 2.3.2
1061 * Thread-safe interfaces for many functions that access locale data
1062 were added in version 2.3, but these features were omitted from NEWS.
1063 Many functions have variants with an `_l' suffix that take a `locale_t'
1064 object as a parameter rather than consulting the current locale.
1065 The new functions `newlocale', `duplocale', and `freelocale' in <locale.h>
1066 create and maintain `locale_t' objects. Additionally, the new function
1067 `uselocale' sets "the current locale" (as used by functions not so
1068 parameterized) set for an individual thread. These features were added
1069 in version 2.3, implemented by Ulrich Drepper and Roland McGrath.
1071 * The functions getresuid, getresgid, setresuid, and setresgid, which
1072 have long been available on Linux, are now declared in <unistd.h>
1073 and are now also available on the Hurd.
1075 * ELF thread-local storage support (TLS) now works on x86-64.
1077 * The new dynamic string token $LIB is expanded in shared library names.
1078 This normally expands to lib, but on some 64-bit platforms to lib64 instead.
1080 * Aldy Hernandez contributed complete software floating point support for
1081 PowerPC machines with no FPU.
1083 * fexecve is implemented on Linux.
1085 * The `btowc' function should work at least twice as fast due to
1086 specialized callbacks in the iconv modules. Implemented by Bruno Haible.
1088 * With approriate thread add-ons cancelable functions are now implemented
1089 in libc.so as well. No need to call the function in libpthread. This
1090 change allowed to finally disable the incorrect and expensive handling
1091 of weak definition in ld.so.
1093 * Yet more PLT entries in libc.so have been removed. We finally arrived
1094 at the bare minimum. Startup times improved appropriately.
1096 * Support for the new Linux/x86 system call interface was added. The
1097 AT_SYSINFO auxiliary vector entry is recognized and handled.
1098 \f
1099 Version 2.3
1101 * Masahide Washizawa contributed iconv modules for IBM1163 and IBM1164
1102 charsets.
1104 * iconv (the program and the interface) now accepts empty names (excluding
1105 options like //TRANSLIT) to mean "use charset of current locale".
1107 * localedef can now transliterate characters in strings which are not in
1108 the provided charmap. The information from the input locale is used.
1110 * Prelinking support was added for ELF targets. This requires additional
1111 tools and recent versions of the GNU binutils. Contributed by Jakub Jelinek.
1113 * Read-only stdio streams now use mmap to speed up operation by eliminating
1114 copying and buffer underflows. To use add 'm' to the mode string of
1115 the fopen/fdopen/freopen call. Implemented by Ulrich Drepper.
1117 * The malloc functions were completely rewritten by Wolfram Gloger based
1118 on Doug Lea's malloc-2.7.0.c.
1120 * Isamu Hasegawa contributed a completely new and POSIX-conformant
1121 implementation of regex.
1123 * Bruno Haible upgraded the iconv and locale implementation to support
1124 Unicode 3.2.
1126 * Contents of the LC_* and LANG environment variables in the CEN style are
1127 not recognized anymore. It never was used. Change by Ulrich Drepper.
1129 * The runtime (ld.so, libc, libpthread for Linux) now can handle the ELF
1130 thread-local storage (TLS) ABI on some platforms.
1131 Changes by Ulrich Drepper. SH support by Kaz Kojima.
1133 * Bruno Haible contributed iconv converters for ISO-2022-JP-3, SHIFT JIS-X0213,
1134 EUC-JISX0213, and TSCII.
1136 * New header <ifaddrs.h> with functions `getifaddrs' and `freeifaddrs':
1137 BSD-compatible interface for getting all network interface addresses.
1138 Implementation for IPv4 by Roland McGrath.
1140 * Loading of locale data is faster due to the introduction of a locale
1141 archive. Implemented by Roland McGrath and Ulrich Drepper.
1143 * Startup times are significantly reduced by not using exported functions
1144 inside the library itself. Changes by Jakub Jelinek, Roland McGrath,
1145 and Ulrich Drepper.
1147 * Steven Munroe contributed a port to PowerPC64/Linux.
1148 \f
1149 Version 2.2.6
1151 * The Hurd now uses the GNU libio implementation of stdio rather than the
1152 old GNU stdio implementation, and uses a new ABI (libc.so.0.3).
1154 * The Hurd on x86 now has the `ioperm' function and <sys/io.h> header file
1155 with the same behavior as the Linux system call of the same name.
1156 \f
1157 Version 2.2.5
1159 * Stephen Moshier implemented log2, log10, powl and cbrtl for the
1160 128-bit long double format.
1162 * Masahide Washizawa contributed iconv modules for IBM1132, IBM1133, IBM1160,
1163 IBM1161, and IBM1162 charsets.
1165 * Andreas Jaeger contributed a port to x86-64/Linux.
1167 * Peter Bruin contributed a port to PowerPC/Hurd.
1169 * libc functions using I/O streams now can handle wide-oriented streams
1170 as well.
1172 * optimizations in the dynamic linker. Binaries created by recent binutils
1173 versions start up quicker due to reduced time spent on relocations.
1175 * Support for use of gcc3 added by Jakub Jelinek and HJ Lu.
1176 \f
1177 Version 2.2.4
1179 * Stephen Moshier implemented cosh, expm1, log1p, acos, sinh, tanh,
1180 asinh, atanh, j0 for the 128-bit long double format.
1182 * Bruno Haible updated all the code handling Unicode in some form to
1183 support Unicode 3.1.
1185 * Speed of regex for single-byte locales is back to previous levels.
1186 Patch by Isamu Hasegawa.
1188 * Alpha, SPARC, and IA-64 now also using floating stacks.
1190 * Startup time of internationalized applications greatly improved through
1191 iconv cache. Use iconvconfig to generate the cache file.
1192 Contributed by Ulrich Drepper.
1194 * The IA-64 specific part of ld.so was rewritten to eliminate some pretty
1195 severe performance problems. Patch by David Mosberger.
1197 * The Hurd port got a lot more functionality like AIO, various stdio
1198 extensions, etc. Mainly done by Roland McGrath.
1200 * mtrace can now lookup symbols in shared libraries.
1201 \f
1202 Version 2.2.3
1204 * Intel's IA-64 math library is largely integrated. It provides fast and
1205 accurate implementatations for most basic and standard math functions
1206 in float, double, and long double format.
1208 * Stephen Moshier implemented j0, j1, jn, y0, y1, yn, lgamma, erf, erfc,
1209 and asin for the 96-bit long double format and asin, log, tan for the
1210 128-bit long double format.
1212 * The beginning of a last-bit accurate math library by IBM Haifa were added.
1213 The basic double functions exist today. Contributed by Abraham Ziv
1214 <ziv@il.ibm.com>, Moshe Olshansky <olshansk@il.ibm.com>, Ealan Henis
1215 <ealan@il.ibm.com>, and Anna Reitman <reitman@il.ibm.com>.
1217 * An asynchronous name lookup library was added. The interface is designed
1218 after POSIX AIO. The proposal was circulated beforehand to get comments.
1219 No negative ones came in. Implemented by Ulrich Drepper.
1221 * Port to S390/64bit contributed by Martin Schwidefsky
1222 <schwidefsky@de.ibm.com>.
1224 * David Mosberger <davidm@hpl.hp.com> implemented the setcontext family
1225 of functions for Linux/IA-64.
1227 * The RPC code is now thread safe. Threads can now use the same service
1228 of different services at the same time. Patch by Eric Norum
1229 <eric.norum@usask.ca> with some help by Ulrich Drepper.
1231 * Martin Schwidefsky <schwidefsky@de.ibm.com> implemented the setcontext
1232 family of functions for Linux/S390.
1234 * Ulrich Drepper <drepper@redhat.com> implemented the setcontext family
1235 of functions for Linux/x86.
1237 * Port to Linux/CRIS contributed by Axis Communications.
1238 \f
1239 Version 2.2.2
1241 * Lots of headers were cleaned up. Using the tool in the conform/ subdir
1242 we can now check for namespace violations and missing declarations. The
1243 result is that almost all headers are now Unix-compliant (as defined in
1244 the upcoming XPG6). The negative side is that some programs might need
1245 corrections, too, if they depend on the incorrect form of the headers in
1246 previous versions which defined too many symbols and included too many
1247 other headers.
1249 * regex now handles multibyte character sets correctly.
1250 Contributed by Isamu Hasegawa <isamu@yamato.ibm.com>.
1252 * iconv (the program) does now conform to the upcoming XPG6 and handles
1253 charmaps. Instead of the charset names the path of charmaps can be
1254 provided and the conversion happens based on this data.
1255 Contributed by Ulrich Drepper.
1257 * The locale program now provides detailed information about the installed
1258 locales. While
1260 locale -a
1262 only lists the names of the supported locales
1264 locale -a --verbose
1266 provides details such as country, language, and codeset name.
1267 Contributed by Ulrich Drepper.
1268 \f
1269 Version 2.2.1
1271 * The gencat program now parses the input file according to the charset
1272 selected by the LC_CTYPE category. This is important for stateful
1273 character sets. To make generating catalogs easier there is a way
1274 to overwrite the charset selected by the locale: before the first
1275 message or $ quote line the catalog can contain a line like
1277 $ codeset=ISO-8859-2
1279 to select the charset (ISO-8859-2 in this case).
1281 Implemented by Shinya Hanataka and Ulrich Drepper.
1283 * New codeset conversion modules: IBM-922 (Estonia PC codeset),
1284 IBM-1124 (Ukraine PC codeset), IBM-1129 (Vietnamese PC codeset).
1285 Contributed by Masahide Washizawa <washi@jp.ibm.com>.
1287 * Optimized string functions for Alpha ev6 and ev67 by Richard Henderson
1288 <rth@redhat.com> and Rick Gorton <rick.gorton@alpha-processor.com>.
1290 * The LANGUAGE environment variable is now ignored unless the locale is
1291 changed from the default "C" locale.
1293 * The usual bug fixes.
1294 \f
1295 Version 2.2
1297 * Greg McGary added runtime support for bounds checking using gcc's
1298 new -fbounded-pointers option. ix86 target is complete. PowerPC
1299 is in progress.
1301 * Thorsten Kukuk added secure mode support to nscd.
1303 * The Berkeley db libraries have been removed.
1305 Related, the nss_db module is now in a separate package since it
1306 obviously requires a database library being available.
1308 * Wide character I/O streams implemented by Ulrich Drepper.
1310 * Functions from the extended socket API added by Ulrich Drepper.
1312 * Functions feenableexcept and fedisableexcept to control the
1313 behaviour of individual exceptions have been added by Andreas Jaeger.
1315 * ldconfig program added by Andreas Jaeger and Jakub Jelinek.
1317 * The resolver code has been updated from bind 8.2.3-T5B which supports
1318 threads. The integration was done by Andreas Jaeger, Adam D. Bradley,
1319 and Mark Kettenis.
1321 This change could in some situations effect backward compatibility. Since
1322 now `_res' is a thread-local instead of a global variable, modifying it
1323 in one thread does not have any effect in other threads.
1325 The resolver library was also extended to allow IPv6 as the transport
1326 protocol for the requests. This work was done by Stig Venaas.
1328 * Compatibility code for K&R C compilers has been removed from the
1329 header files. A ISO C compiler is needed to use the library
1330 (conforming to either C89 or C99 standard).
1332 * Complete rewrite of the localedef program to support multibyte character
1333 sets. Implement handling of ISO 14651 and ISO 14652. Rewrite strcoll,
1334 strxfrm, wcscoll, and wcsxfrm functions. Make isw*() functions work.
1335 Implemented by Ulrich Drepper.
1337 Bruno Haible significantly improved the generation and use of the data
1338 structures for the wide character tables.
1340 * Plural handling in gettext implemented by Ulrich Drepper.
1342 * The utmp daemon has been removed.
1344 * The port to MIPS-Linux has been finished by Andreas Jaeger.
1346 * A port to Hitachi SH3 and SH4 has been contributed by Kazumoto Kojima
1347 and Yutaka Niibe.
1349 * POSIX clocks and timers implemented by Kaz Kylheku and Ulrich Drepper.
1351 * POSIX barriers implemented by Kaz Kylheku.
1353 * POSIX spawn function family implemented by Ulrich Drepper.
1355 * POSIX spinlocks are now available.
1357 * Timed wait functions for mutex, rwlock, and semaphores are implemented.
1359 * the configure option --enable-kernel=X.Y.Z allows to strip out
1360 compatibility for kernel versions before X.Y.Z. This is currently only
1361 implemented for Linux.
1363 * the sockaddr_in6 structure changed. The IPv6 working group added a new
1364 field sin6_scope_id. This means that all programs using IPv6 should be
1365 recompiled. Don't expect binary compatibility with previous glibc
1366 versions.
1368 * various conversion modules for IBM character sets contributed by
1369 Masahide Washizawa.
1371 * IA-64 port by Jes Sorensen and HJ Lu.
1372 \f
1373 Version 2.1.3
1375 * bug fixes
1377 \f
1378 Version 2.1.2
1380 * bug fixes
1382 \f
1383 Version 2.1.1
1385 * New ISO C 9x function _Exit, imaxabs, and imaxdiv are added.
1387 * New xdr functions are added; some rpc functions are now 64bit clean.
1389 * Fixed a number of bugs and memory leaks (especially in NIS+ code).
1391 * Fixed known incompatibilities with glibc 2.0.
1393 * New functions lock64, strchrnul, rawmemchr, getutmp and getutmpx.
1395 * Optimized a number of functions (especially the ELF dynamic loader).
1397 * Update timezone data files.
1399 * lots of charmaps corrections
1401 * some new locale definitions and charmaps
1403 \f
1404 Version 2.1
1406 * Richard Henderson corrected size of struct timeval on Linux/Alpha to
1407 conform to POSIX member type requirements. Symbol versions have been
1408 adjusted as needed within the library, and for direct use by applications,
1409 but there is potential for problems if third-party libraries use
1410 struct timeval as part of their interface. This does not present
1411 a problem for X and other "essential" system libraries.
1413 * An additional locale model to support C++ Standard Library locale
1414 model and probably more was implemented by Ulrich Drepper.
1416 * Eric Youngdale and Ulrich Drepper implemented versioning of objects on
1417 symbol level.
1419 * Miles Bader provided the `argp' function family to support hierachical
1420 command line argument parsing, layered on top of getopt.
1422 * strtod accepts new hexadecimal floating-point format from ISO C 9X.
1424 * printf has two new specifiers %a and %A to print hexadecimal flaoting-point
1425 numbers.
1427 * scanf recognizes the %a and %A format for scanning floating point numbers.
1429 * the new headers <stdint.h> and <inttypes.h> from ISO C 9X provides
1430 information and interfaces for the available integer types.
1432 * about 130 new math functions were added to implement the ISO C9x math
1433 library.
1435 * the new header <complex.h> contains definitions of the complex math
1436 functions from ISO C 9X.
1438 * the new header <tgmath.h> defines generic macros to use complex or
1439 real valued functions.
1441 * Thorsten Kukuk provided an implementation for NIS+, securelevel 0, 1 and 2.
1443 * Andreas Jaeger provided a test suite for the math library.
1445 * Mark Kettenis implemented the utmpx interface and an utmp daemon.
1447 * Ulrich Drepper added character set conversion functions (iconv).
1449 * Optimized string functions have been added.
1451 * The localedata addon is now part of glibc.
1453 * An implementation of profiling shared libraries was added by Ulrich Drepper.
1455 * Thorsten Kukuk and Ulrich Drepper provided an implementation for a caching
1456 daemon for NSS (nscd).
1458 Missing a better place here are some numbers on improvements. Under
1459 Linux 2.1.125 un-tar-ing the kernel sources takes
1461 user system wall
1463 using local files 12.19s 6.88s 22.91s
1465 using NIS 13.92s 8.91s 26.34s
1467 using NIS & nscd 10.37s 7.34s 25.30s
1469 using NIS+ 27.57s 30.37s 640.46s
1471 using NIS+ & nscd 10.25s 7.83s 26.51s
1473 using NIS & old nscd [1] 13.83s 8.32s 29.60s
1475 Keep in mind that non-namelookup related operations dominate above times.
1476 It was just a common complain that using NIS+ unpacking the kernel is
1477 horribly slow.
1479 [1] The old nscd implementation is not available anymore since it was
1480 distributed with glibc up to version 2.0.98 and thus is now replaced.
1482 * Tim Waugh provided an implementation of the POSIX.2 wordexp function family.
1484 * Mark Kettenis provided a Hesiod NSS module.
1486 * The ELF dynamic loader knows how to process dynamic string tokens ($ORIGIN
1487 and $PLATFORM) in RPATHs and similar strings (Ulrich Drepper).
1489 * rcmd can now handle netgroups (Dick Streefland).
1491 * A port to the ARM was contributed by Phil Blundell, Pat Beirne and Scott
1492 Bambrough.
1494 * Support for the IPv6 protocol has been added to the socket API, as per the
1495 latest draft standards.
1497 * Support for Linux 2.2 has been added.
1499 * Interface changes relative to the latest 2.0.x release:
1500 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1501 addseverity NEW: Unix98
1502 alphasort64 NEW: LFS
1503 argp_err_exit_status NEW: argp, GNU ext
1504 argp_error NEW: argp, GNU ext
1505 argp_failure NEW: argp, GNU ext
1506 argp_help NEW: argp, GNU ext
1507 argp_parse NEW: argp, GNU ext
1508 argp_program_bug_address NEW: argp, GNU ext
1509 argp_program_version NEW: argp, GNU ext
1510 argp_program_version_hook NEW: argp, GNU ext
1511 argp_state_help NEW: argp, GNU ext
1512 argp_usage NEW: argp, GNU ext
1513 authdes_create NEW: Secure RPC
1514 authdes_getucred NEW: Secure RPC
1515 authdes_pk_create NEW: Secure RPC
1516 backtrace NEW: GNU ext.
1517 backtrace_symbols NEW: GNU ext.
1518 backtrace_symbols_fd NEW: GNU ext.
1519 cacos NEW: ISO C 9x
1520 cacosf NEW: ISO C 9x
1521 cacosh NEW: ISO C 9x
1522 cacoshf NEW: ISO C 9x
1523 cacoshl NEW: ISO C 9x
1524 cacosl NEW: ISO C 9x
1525 capget NEW: kernel
1526 capset NEW: kernel
1527 carg NEW: ISO C 9x
1528 cargf NEW: ISO C 9x
1529 cargl NEW: ISO C 9x
1530 casin NEW: ISO C 9x
1531 casinf NEW: ISO C 9x
1532 casinh NEW: ISO C 9x
1533 casinhf NEW: ISO C 9x
1534 casinhl NEW: ISO C 9x
1535 casinl NEW: ISO C 9x
1536 catan NEW: ISO C 9x
1537 catanf NEW: ISO C 9x
1538 catanh NEW: ISO C 9x
1539 catanhf NEW: ISO C 9x
1540 catanhl NEW: ISO C 9x
1541 catanl NEW: ISO C 9x
1542 cbc_crypt NEW: Secure RPC
1543 ccos NEW: ISO C 9x
1544 ccosf NEW: ISO C 9x
1545 ccosh NEW: ISO C 9x
1546 ccoshf NEW: ISO C 9x
1547 ccoshl NEW: ISO C 9x
1548 ccosl NEW: ISO C 9x
1549 cexp NEW: ISO C 9x
1550 cexpf NEW: ISO C 9x
1551 cexpl NEW: ISO C 9x
1552 cimag NEW: ISO C 9x
1553 cimagf NEW: ISO C 9x
1554 cimagl NEW: ISO C 9x
1555 clearerr_locked REMOVED
1556 clntunix_create NEW: sunrpc ext
1557 clog NEW: ISO C 9x
1558 clog10 NEW: ISO C 9x
1559 clog10f NEW: ISO C 9x
1560 clog10l NEW: ISO C 9x
1561 clogf NEW: ISO C 9x
1562 clogl NEW: ISO C 9x
1563 conj NEW: ISO C 9x
1564 conjf NEW: ISO C 9x
1565 conjl NEW: ISO C 9x
1566 cpow NEW: ISO C 9x
1567 cpowf NEW: ISO C 9x
1568 cpowl NEW: ISO C 9x
1569 cproj NEW: ISO C 9x
1570 cprojf NEW: ISO C 9x
1571 cprojl NEW: ISO C 9x
1572 creal NEW: ISO C 9x
1573 crealf NEW: ISO C 9x
1574 creall NEW: ISO C 9x
1575 creat64 NEW: LFS
1576 csin NEW: ISO C 9x
1577 csinf NEW: ISO C 9x
1578 csinh NEW: ISO C 9x
1579 csinhf NEW: ISO C 9x
1580 csinhl NEW: ISO C 9x
1581 csinl NEW: ISO C 9x
1582 csqrt NEW: ISO C 9x
1583 csqrtf NEW: ISO C 9x
1584 csqrtl NEW: ISO C 9x
1585 ctan NEW: ISO C 9x
1586 ctanf NEW: ISO C 9x
1587 ctanh NEW: ISO C 9x
1588 ctanhf NEW: ISO C 9x
1589 ctanhl NEW: ISO C 9x
1590 ctanl NEW: ISO C 9x
1591 des_setparity NEW: Secure RPC
1592 ecb_crypt NEW: Secure RPC
1593 endutxent NEW: Unix98
1594 exp10 NEW: ISO C 9x
1595 exp10f NEW: ISO C 9x
1596 exp10l NEW: ISO C 9x
1597 exp2 NEW: ISO C 9x
1598 exp2f NEW: ISO C 9x
1599 exp2l NEW: ISO C 9x
1600 fattach NEW: STREAMS
1601 fdetach NEW: STREAMS
1602 fdim NEW: ISO C 9x
1603 fdimf NEW: ISO C 9x
1604 fdiml NEW: ISO C 9x
1605 feclearexcept NEW: ISO C 9x
1606 fegetenv NEW: ISO C 9x
1607 fegetexceptflag NEW: ISO C 9x
1608 fegetround NEW: ISO C 9x
1609 feholdexcept NEW: ISO C 9x
1610 feof_locked REMOVED
1611 feraiseexcept NEW: ISO C 9x
1612 ferror_locked REMOVED
1613 fesetenv NEW: ISO C 9x
1614 fesetexceptflag NEW: ISO C 9x
1615 fesetround NEW: ISO C 9x
1616 fetestexcept NEW: ISO C 9x
1617 feupdateenv NEW: ISO C 9x
1618 fflush_locked REMOVED
1619 ffsl NEW: GNU ext.
1620 ffsll NEW: GNU ext.
1621 fgetpos64 NEW: LFS
1622 fgets_unlocked NEW: GNU ext.
1623 fileno_locked REMOVED
1624 fma NEW: ISO C 9x
1625 fmaf NEW: ISO C 9x
1626 fmal NEW: ISO C 9x
1627 fmax NEW: ISO C 9x
1628 fmaxf NEW: ISO C 9x
1629 fmaxl NEW: ISO C 9x
1630 fmin NEW: ISO C 9x
1631 fminf NEW: ISO C 9x
1632 fminl NEW: ISO C 9x
1633 fmtmsg NEW: Unix98
1634 fopen64 NEW: LFS
1635 fputc_locked REMOVED
1636 fputs_unlocked NEW: GNU ext.
1637 fread_unlocked NEW: GNU ext.
1638 freopen64 NEW: LFS
1639 fseeko NEW: Unix98
1640 fsetpos64 NEW: LFS
1641 fstatfs64 NEW: LFS
1642 fstatvfs NEW: Unix98
1643 fstatvfs64 NEW: LFS
1644 ftello NEW: Unix98
1645 ftello64 NEW: LFS
1646 ftruncate64 NEW: LFS
1647 ftw64 NEW: LFS
1648 fwrite_unlocked NEW: GNU ext.
1649 gai_strerror NEW: IPv6
1650 gamma_r REMOVED
1651 gammaf_r REMOVED
1652 gammal_r REMOVED
1653 getchar_locked REMOVED
1654 getdate NEW: Unix98
1655 getdate_err NEW: Unix98
1656 getdate_r NEW: GNU ext.
1657 getmsg NEW: STREAMS
1658 getnameinfo NEW: IPv6
1659 getnetname NEW: Secure RPC
1660 getpmsg NEW: STREAMS
1661 getpt NEW: Unix98 PTY
1662 getrlimit64 NEW: LFS
1663 getutxent NEW: Unix98
1664 getutxid NEW: Unix98
1665 getutxline NEW: Unix98
1666 glob64 NEW: GNU ext.
1667 globfree64 NEW: GNU ext.
1668 gnu_get_libc_release NEW: GNU ext.
1669 gnu_get_libc_version NEW: GNU ext.
1670 grantpt NEW: Unix98 PTY
1671 host2netname NEW: Secure RPC
1672 iconv NEW: iconv
1673 iconv_close NEW: iconv
1674 iconv_open NEW: iconv
1675 if_freenameindex NEW: IPv6
1676 if_indextoname NEW: IPv6
1677 if_nameindex NEW: IPv6
1678 if_nametoindex NEW: IPv6
1679 in6addr_any NEW: IPv6
1680 in6addr_loopback NEW: IPv6
1681 inet6_isipv4mapped NEW: IPv6
1682 isastream NEW: STREAMS
1683 iswblank NEW: GNU ext.
1684 key_decryptsession NEW: Secure RPC
1685 key_decryptsession_pk NEW: Secure RPC
1686 key_encryptsession NEW: Secure RPC
1687 key_encryptsession_pk NEW: Secure RPC
1688 key_gendes NEW: Secure RPC
1689 key_get_conv NEW: Secure RPC
1690 key_secretkey_is_set NEW: Secure RPC
1691 key_setnet NEW: Secure RPC
1692 key_setsecret NEW: Secure RPC
1693 llrint NEW: ISO C 9x
1694 llrintf NEW: ISO C 9x
1695 llrintl NEW: ISO C 9x
1696 llround NEW: ISO C 9x
1697 llroundf NEW: ISO C 9x
1698 llroundl NEW: ISO C 9x
1699 log2 NEW: ISO C 9x
1700 log2f NEW: ISO C 9x
1701 log2l NEW: ISO C 9x
1702 lrint NEW: ISO C 9x
1703 lrintf NEW: ISO C 9x
1704 lrintl NEW: ISO C 9x
1705 lround NEW: ISO C 9x
1706 lroundf NEW: ISO C 9x
1707 lroundl NEW: ISO C 9x
1708 lseek64 NEW: LFS
1709 makecontext NEW: Unix98
1710 mempcpy NEW: GNU ext.
1711 mmap64 NEW: LFS
1712 moncontrol REMOVED
1713 modify_ldt NEW: kernel
1714 nan NEW: ISO C 9x
1715 nanf NEW: ISO C 9x
1716 nanl NEW: ISO C 9x
1717 nearbyint NEW: ISO C 9x
1718 nearbyintf NEW: ISO C 9x
1719 nearbyintl NEW: ISO C 9x
1720 netname2host NEW: Secure RPC
1721 netname2user NEW: Secure RPC
1722 nexttoward NEW: ISO C 9x
1723 nexttowardf NEW: ISO C 9x
1724 nexttowardl NEW: ISO C 9x
1725 nftw NEW: Unix98
1726 nftw64 NEW: LFS
1727 open64 NEW: LFS
1728 passwd2des NEW: Secure RPC
1729 pow10 NEW: GNU ext.
1730 pow10f NEW: GNU ext.
1731 pow10l NEW: GNU ext.
1732 pread NEW: Unix98
1733 pread64 NEW: LFS
1734 printf_size NEW: GNU ext.
1735 printf_size_info NEW: GNU ext.
1736 profil_counter REMOVED
1737 pthread_mutexattr_getkind_np REPLACED
1738 pthread_mutexattr_setkind_np REPLACED
1739 ptsname NEW: Unix98 PTY
1740 ptsname_r NEW: Unix98 PTY
1741 putc_locked REMOVED
1742 putchar_locked REMOVED
1743 putgrent NEW: GNU ext.
1744 putmsg NEW: STREAMS
1745 putpmsg NEW: STREAMS
1746 pututxline NEW: Unix98
1747 pwrite NEW: Unix98
1748 pwrite64 NEW: LFS
1749 readdir64 NEW: LFS
1750 readdir64_r NEW: LFS
1751 remquo NEW: ISO C 9x
1752 remquof NEW: ISO C 9x
1753 remquol NEW: ISO C 9x
1754 round NEW: ISO C 9x
1755 roundf NEW: ISO C 9x
1756 roundl NEW: ISO C 9x
1757 rtime NEW: GNU ext.
1758 scalbln NEW: ISO C 9x
1759 scalblnf NEW: ISO C 9x
1760 scalblnl NEW: ISO C 9x
1761 scandir64 NEW: LFS
1762 sendfile NEW: kernel
1763 setcontext NEW: Unix98
1764 setrlimit64 NEW: LFS
1765 setutxent NEW: Unix98
1766 sighold NEW: Unix98
1767 sigignore NEW: Unix98
1768 sigqueue NEW: POSIX.1b
1769 sigrelse NEW: Unix98
1770 sigset NEW: POSIX.1b
1771 sigtimedwait NEW: POSIX.1b
1772 sigwaitinfo NEW: POSIX.1b
1773 sincos NEW: GNU ext.
1774 sincosf NEW: GNU ext.
1775 sincosl NEW: GNU ext.
1776 statfs64 NEW: LFS
1777 statvfs NEW: Unix98
1778 statvfs64 NEW: LFS
1779 strcasestr NEW: GNU ext.
1780 strtoimax NEW: ISO C 9x
1781 strtoumax NEW: ISO C 9x
1782 strverscmp NEW: GNU ext.
1783 svcauthdes_stats NEW: Secure RPC
1784 svcunix_create NEW: sunrpc etx
1785 svcunixfd_create NEW: sunrpc ext
1786 swapcontext NEW: Unix98
1787 tcgetsid NEW: Unix98 PTY
1788 tdestroy NEW: GNU ext.
1789 tgamma NEW: ISO C 9x
1790 tgammaf NEW: ISO C 9x
1791 tgammal NEW: ISO C 9x
1792 tmpfile64 NEW: LFS
1793 trunc NEW: ISO C 9x
1794 truncate64 NEW: LFS
1795 truncf NEW: ISO C 9x
1796 truncl NEW: ISO C 9x
1797 umount2 NEW: kernel
1798 unlockpt NEW: Unix98 PTY
1799 updwtmpx NEW: Unix98
1800 user2netname NEW: Secure RPC
1801 utmpxname NEW: Unix98
1802 versionsort NEW: GNU ext.
1803 versionsort64 NEW: GNU ext.
1804 waitid NEW: Unix98
1805 wcscasecmp NEW: GNU ext.
1806 wcsncasecmp NEW: GNU ext.
1807 wcsnlen NEW: GNU ext.
1808 wcstoimax NEW: ISO C 9x
1809 wcstoll NEW: ISO C 9x
1810 wcstoull NEW: ISO C 9x
1811 wcstoumax NEW: ISO C 9x
1812 wcswcs NEW: Unix98
1813 wordexp NEW: POSIX.2
1814 wordfree NEW: POSIX.2
1815 write_profiling REMOVED
1816 xdecrypt NEW: Secure RPC
1817 xdr_authdes_cred NEW: Secure RPC
1818 xdr_authdes_verf NEW: Secure RPC
1819 xdr_cryptkeyarg NEW: Secure RPC
1820 xdr_cryptkeyarg2 NEW: Secure RPC
1821 xdr_cryptkeyres NEW: Secure RPC
1822 xdr_getcredres NEW: Secure RPC
1823 xdr_key_netstarg NEW: Secure RPC
1824 xdr_key_netstres NEW: Secure RPC
1825 xdr_keybuf NEW: Secure RPC
1826 xdr_keystatus NEW: Secure RPC
1827 xdr_netnamestr NEW: Secure RPC
1828 xdr_sizeof NEW: Secure RPC
1829 xdr_unixcred NEW: sunrpc ext
1830 xencrypt NEW: Secure RPC
1831 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1832 \f
1833 Version 2.0.6
1835 * more bug fixes
1837 \f
1838 Version 2.0.5
1840 * more bug fixes
1842 * inet_ntoa is thread-safe
1844 * updwtmp is moved from libutil to libc
1846 * rewrite of cbrt function
1848 * update of timezone data
1849 \f
1850 Version 2.0.4
1852 * more bug fixes
1853 \f
1854 Version 2.0.3
1856 * more bug fixes
1857 \f
1858 Version 2.0.2
1860 * more bug fixes
1862 * add atoll function
1864 * fix complex problems in Berkeley DB code
1866 * fix math functions
1867 \f
1868 Version 2.0.1
1870 * fixed lots of header problems (especially Linux/GNU specific)
1872 * dynamic loader preserves all registers
1874 * Roland McGrath provided support for handling of auxiliary objects in
1875 the ELF dynamic loader.
1877 * support for parallel builds is improved
1878 \f
1879 Version 2.0
1881 * GNU extensions are no longer declared by default. To enable them you
1882 must define the macro `_GNU_SOURCE' in your program or compile with
1883 `-D_GNU_SOURCE'.
1885 * The library has changed from using GNU ld symbol aliases to using weak
1886 symbols where available. The ELF object file format supports weak
1887 symbols; GNU ld also supports weak symbols in the a.out format. (There
1888 is also now support for other GNU ld extensions in ELF. Use the
1889 `--with-elf' option to configure to indicate you have ELF, and
1890 `--with-gnu-ld' if using GNU ld.) This change resulted in the deletion
1891 of many files which contained only symbol aliases, reducing the size of
1892 the source and the compiled library; many other files were renamed to
1893 less cryptic names previously occupied by the symbol alias files.
1894 There is a new header file <elf.h> for programs which operate on
1895 files in the ELF format.
1897 * Converted to Autoconf version 2, so `configure' has more options.
1898 Run `configure --help' to see the details.
1900 * The library can now be configured to build profiling, highly-optimized
1901 (but undebuggable), and/or shared libraries (ELF with GNU ld only). The
1902 `--enable-profile', `--enable-omitfp', and `--enable-shared' options to
1903 `configure' enable building these extra libraries. The shared library is
1904 built by default when using both ELF and GNU ld. When shared libraries
1905 are enabled, the new library `-ldl' is available for arbitrary run-time
1906 loading of shared objects; its interface is defined in <dlfcn.h>. The
1907 new header file <link.h> gives access to the internals of the run-time
1908 dynamic linker, `ld.so'. The shell script `ldd' is similar to the
1909 application of same name on other systems and it provides information
1910 about dynamically linked binaries.
1912 * The C library now provides the run-time support code for profiling
1913 executables compiled with `-pg'. Programs can control the profiling code
1914 through the interface in <sys/gmon.h>. The `gmon.out' files written by
1915 the GNU C library can be read only by GNU `gprof' (from GNU binutils);
1916 the support for this file format was contributed by David Mosberger-Tang.
1918 * The math code has been replaced with a math library based on fdlibm from
1919 Sun, and modified by JT Conklin and Ulrich Drepper with i387 support, by
1920 Ian Taylor with `float' functions and by Ulrich Drepper with `long double'
1921 functions. The math functions now reside in a separate library, so
1922 programs using them will need to use `-lm' their linking commands.
1924 * John C. Bowman contributed optimized ix87 assembler inline functions.
1926 * Ulrich Drepper has contributed support for an `/etc/nsswitch.conf'
1927 mechanism similar to that found in Solaris 2. This is now used for the
1928 group, passwd, hosts, networks, services, protocols, rpc, ethers,
1929 shadow, netgroup, publickey, and alias databases. The `nsswitch.conf'
1930 file controls what services are used for each individual database. This
1931 works by loading shared libraries with names specified in `nsswitch.conf',
1932 so service modules can be changed or added at any time without even
1933 relinking any program. Currently there are the file, db, and NIS based
1934 NSS services available.
1936 * The new functions `strtoq' and `strtouq' parse integer values from
1937 strings, like `strtol' and `strtoul', but they return `long long int' and
1938 `unsigned long long int' values, respectively (64-bit quantities).
1940 * The new functions `strtof' and `strtold' parse floating-point values from
1941 strings, like `strtod', but they return `float' and `long double' values,
1942 respectively (on some machines `double' and `long double' are the same).
1944 * Ulrich Drepper has contributed new implementations of the floating-point
1945 printing and reading code used in the `printf' family of functions and
1946 `strtod', `strtof', and `strtold'. These new functions are perfectly
1947 accurate, and much faster than the old ones.
1949 * The implementation of the POSIX locale model was completely rewritten by
1950 Ulrich Drepper. This includes the new programs `localedef' and `locale'
1951 to compile the POSIX locale definition.
1953 * The former dummy implementations of the strcoll and strxfrm function are
1954 now replaced by fully functional code contributed by Ulrich Drepper. The
1955 collation information comes from the POSIX locale definitions.
1957 * The new header <langinfo.h> defines an interface for accessing
1958 various locale-dependent data (using the locale chosen with `setlocale').
1960 * Ulrich Drepper has contributed a new suite of functions for operation on
1961 wide-character and multibyte-character strings, in <wchar.h>;
1962 and classification and case conversion of wide characters, in <wctype.h>.
1963 These new functions are conforming to the ISO C, Amendement 1 specification.
1965 * There is now a second implementation of the standard I/O library available.
1966 It comes from GNU libg++ as was written by Per Bothner, heavily modified
1967 by Hongjiu Lu and made thread safe by Ulrich Drepper.
1969 * You can now use positional parameter specifications in format strings
1970 for the `printf' and `scanf' families of functions. For example,
1971 `printf ("Number %2$d, Mr %1$s\n", "Jones", 6);'' prints
1972 ``Number 6, Mr Jones''. This is mainly useful when providing different
1973 format strings for different languages, whose grammars may dictate
1974 different orderings of the values being printed. To support this
1975 feature, the interface for `register_printf_handler' has changed; see
1976 the header file <printf.h> for details.
1978 * The `printf' and `scanf' families of functions now understand a new
1979 formatting flag for numeric conversions: the ' flag (e.g. %'d or %'f) says
1980 to group numbers as indicated by the locale; for `scanf' and friends, this
1981 says to accept as valid only a number with all the proper grouping
1982 separators in the right places. In the default "C" locale, numbers are
1983 not grouped; but locales for specific countries will define the usual
1984 conventions (i.e. separate thousands with `,' in the US locale).
1986 * The pgrp functions have been regularized, slightly incompatibly but much
1987 less confusingly. The core functions are now `getpgid' and `setpgid',
1988 which take arguments for the PID to operate on; the POSIX.1 `getpgrp' (no
1989 argument) and BSD `setpgrp' (identical to `setpgid') functions are
1990 provided for compatibility. There is no longer an incompatible `getpgrp'
1991 with an argument declared under _BSD_SOURCE; no BSD code uses it.
1993 * The new header file <fts.h> and suite of functions simplify programs that
1994 operate on directory trees. This code comes from 4.4 BSD.
1996 * The resolver code has been updated from the BIND 4.9.5-P1 release.
1997 Parts of the code were heavily modified by Ulrich Drepper to fit in the
1998 NSS scheme used in glibc.
2000 * There is a new malloc debugging hook `__memalign_hook'.
2002 * There are new typedefs `ushort' for `unsigned short int' and `uint' for
2003 `unsigned int' in <sys/types.h>. These are for compatibility only and
2004 their use is discouraged.
2006 * The `-lmcheck' library to enable standard malloc debugging hooks is now
2007 done differently, so that it works even without GNU ld.
2009 * New function `euidaccess' checks allowed access to a file like `access',
2010 but using the effective IDs instead of the real IDs.
2012 * The time zone data files have been updated for the latest and greatest
2013 local time conventions of the countries of the world.
2015 * The new function `dirfd' extracts the file descriptor used by a DIR stream;
2016 see <dirent.h>.
2018 * The new functions `ecvt', `fcvt', and `gcvt' provide an obsolete interface
2019 for formatting floating-point numbers. They are provided only for
2020 compatibility; new programs should use `sprintf' instead. There are
2021 also equivalent function for the `long double' floating-point type and
2022 all functions also exist in a reentrant form.
2024 * The new auxiliary library `-lutil' from 4.4 BSD contains various
2025 functions for maintaining the login-record files (primarily of use to
2026 system programs such as `login'), and convenient functions for
2027 allocating and initializing a pseudo-terminal (pty) device.
2029 * Ulrich Drepper has contributed new support for System V style
2030 shared memory and IPC on systems that support it.
2032 * Ulrich Drepper has contributed several miscellaneous new functions found
2033 in System V: The `hsearch' family of functions provide an effective
2034 implementation of hash tables; `a64l' and `l64a' provide a very simple
2035 binary to ASCII mapping; `drand48' and friends provide a 48-bit random
2036 number generator.
2038 * Ulrich Drepper has contributed new reentrant counterparts for the
2039 `random' and `hsearch' families of functions; `random_r', `hsearch_r', etc.
2041 * Ulrich Drepper has contributed new, highly-optimized versions of several
2042 string functions for the i486/Pentium family of processors.
2044 * Ulrich Drepper has updated the Linux-specific code, based largely
2045 on work done in Hongjiu Lu's version of GNU libc for Linux.
2046 The GNU library now supports Linux versions 2.0.10 and later,
2047 using the ELF object file format (i[3456]86-*-linux).
2049 * Andreas Schwab has ported the C library to Linux/m68k (m68k-*-linux).
2051 * David Mosberger-Tang and Richard Henderson have ported the C library
2052 to Linux/Alpha (alpha-*-linux). Richard Henderson contributed the
2053 dynamic linking support for ELF/Alpha.
2055 * Richard Henderson contributed several Alpha optimized assembler function
2056 for arithmetic and string handling.
2058 * Ulrich Drepper has contributed a new set of message catalog functions to
2059 support multiple languages using the <libintl.h> interface, for use with
2060 his new package GNU gettext. Translation volunteers have contributed
2061 catalogs of the library's messages in Spanish, German, and Korean.
2063 * For compatibility with XPG4, Ulrich Drepper has contributed the `gencat'
2064 program and the `catgets' function for reading the catalog files it
2065 creates. (The <libintl.h> interface is preferred; we include the
2066 <nl_types.h> interface using `catgets' only for source compatibility with
2067 programs already written to use it.)
2069 * New header file <values.h> gives SVID-compatible names for <limits.h>
2070 constants.
2072 * Various new macros, declarations, and small header files for compatibility
2073 with 4.4 BSD.
2075 * New function `group_member' is a convenient way to check if a process has
2076 a given effective group ID.
2078 * When using GCC 2.7 and later, the socket functions are now declared in a
2079 special way so that passing an argument of type `struct sockaddr_in *',
2080 `struct sockaddr_ns *', or `struct sockaddr_un *' instead of the generic
2081 `struct sockaddr *' type, does not generate a type-clash warning.
2083 * New function `error' declared in header file <error.h> is a convenient
2084 function for printing error messages and optionally exiting; this is the
2085 canonical function used in GNU programs. The new functions `err', `warn',
2086 and friends in header file <err.h> are the canonical 4.4 BSD interface for
2087 doing the same thing.
2089 * The <glob.h> interface has several new flags from 4.4 BSD that extend the
2090 POSIX.2 `glob' function to do ~ and {...} expansion.
2092 * New function `unsetenv' complements `setenv' for compatibility with 4.4 BSD.
2093 `clearenv' which is used in POSIX.9 is also available.
2095 * New function `getsid' returns session ID number on systems that support it.
2097 * We have incorporated the 4.4 BSD `db' library (version 1.85). New header
2098 files <db.h> and <mpool.h> provide a rich set of functions for several
2099 types of simple databases stored in memory and in files, and <ndbm.h> is
2100 an old `ndbm'-compatible interface using the `db' functions. Link with
2101 `-ldb' to get these functions.
2103 * New macro `strdupa' copies a string like `strdup', but uses local stack
2104 space from `alloca' instead of dynamic heap space from `malloc'.
2106 * New function `strnlen' is like `strlen' but searches only a given maximum
2107 number of characters for the null terminator. `stpncpy', `strndup' and
2108 `strndupa' are similar variants for the `stpcpy', `strdup' and `strdupa'
2109 function.
2111 * New function `statfs' in header <sys/statfs.h>.
2113 * The new <argz.h> and <envz.h> interfaces contributed by Miles Bader
2114 provide convenient functions for operating on blocks of null-terminated
2115 strings.
2117 * A new suite of functions in <utmp.h> handle all the details of reading
2118 and writing the utmp file.
2120 * An implementation of the NIS/YP(tm) based NSS service was contributed by
2121 Thorsten Kukuk.
2123 * Paul Eggert and Ulrich Drepper modified the `strftime' function to be
2124 completely POSIX compliant and also implemented the extended functionality
2125 to handle alternate digit representation and alternate era date formats.
2127 * Ulrich Drepper provided an implementation of the `strptime' function
2128 defined in XPG4.2 which transforms a string into a `struct tm' value.
2130 * Paul Eggert provided the tzselect shell script as part of the timezone
2131 code. The shell script makes it easy to select the correct timezone
2132 specification.
2134 * The implementation of the malloc family of functions is completely replaced
2135 by a new implementation by Doug Lea with many improvements by Wolfram Gloger.
2136 The implementation uses the mmap function (if available) and it is
2137 optimized for the use in multi threaded programs.
2139 * Ulrich Drepper contributed a MD5 "encryption" for the crypt family of
2140 functions. This new functionality is usable by specifying a special
2141 salt string and it is compatible with implementation on *BSD systems.
2143 * Lots of functions from the XPG4.2 standard were added by Ulrich Drepper:
2144 `getsubopt' to handle second level command line options, `bsd_signal'
2145 to access BSD style `signal' functionality, the obsolete `regexp' style
2146 expression matcher.
2148 * the `lchown' function is available on system which support this
2149 functionality.
2151 * The implementation of the shadow password handling function was contributed
2152 by Ulrich Drepper.
2154 * David Mosberger-Tang changed the SunRPC implementation to be 64bit safe.
2156 * POSIX.1g support was added. The <sys/select.h> header is available,
2157 `isfdtype' and `pselect' are implemented. Craig Metz contributed an
2158 implementation of `getaddrinfo'.
2159 \f
2160 Version 1.09
2162 * For cross-compilation you should now set `BUILD_CC' instead of `HOST_CC'.
2164 * New header file <fstab.h> and new functions `getfsspec', `getfsent' and
2165 friends, for parsing /etc/fstab. This code comes from 4.4 BSD.
2167 * The new function `daemon' from 4.4 BSD is useful for server programs that
2168 want to put themselves in the background.
2170 * Joel Sherrill has contributed support for several standalone boards that
2171 run without an operating system.
2173 * `printf', `scanf' and friends now accept a `q' type modifier for long
2174 long int as well as `ll'. Formats using these might be `%qu' or `%lld'.
2176 * All of the code taken from BSD (notably most of the math and networking
2177 routines) has been updated from the BSD 4.4-Lite release.
2179 * The resolver code has been updated from the BIND-4.9.3-BETA9 release.
2181 * The new functions `getdomainname' and `setdomainname' fetch or change the
2182 YP/NIS domain name. These are system calls which exist on systems which
2183 have YP (aka NIS).
2185 * The time zone data files have been updated for the latest international
2186 conventions.
2188 * The SunRPC programs `portmap' and `rpcinfo' are now installed in
2189 $(sbindir) (usually /usr/local/sbin) instead of $(bindir).
2190 \f
2191 Version 1.08
2193 * The C library now includes support for Sun RPC, from Sun's free
2194 RPCSRC-4.0 distribution. The `portmap', `rpcinfo', and `rpcgen' programs
2195 are included. (There is still no support for YP.)
2197 * Tom Quinn has contributed a port of the C library to SGI machines running
2198 Irix 4 (mips-sgi-irix4).
2200 * The new `lockf' function is a simplified interface to the locking
2201 facilities of `fcntl', included for compatibility.
2203 * New time functions `timegm', `timelocal', and `dysize' for compatibility.
2205 * New header file <sys/timeb.h> and new function `ftime' for compatibility.
2207 * New header files <poll.h> and <sys/poll.h> and new function `poll' for
2208 compatibility.
2210 * The error message printed by `assert' for a failed assertion now includes
2211 the name of the program (if using GNU ld) and the name of the calling
2212 function (with versions of GCC that support this).
2214 * The `psignal' function is now declared in <signal.h>, not <stdio.h>.
2216 * The library now includes the <sys/mman.h> header file and memory
2217 management functions `mmap', `munmap', `mprotect', `msync', and
2218 `madvise', on systems that support those facilities.
2220 * The interface for `mcheck' has changed slightly: the function called to
2221 abort the program when an allocation inconsistency is detected now takes
2222 an argument that indicates the type of failure. The new function
2223 `mprobe' lets you request a consistency check for a particular block at
2224 any time (checks are normally done only when you call `free' or `realloc'
2225 on a block).
2227 * It is now possible to easily cross-compile the C library, building on one
2228 system a library to run on another machine and/or operating system. All
2229 you need to do is set the variable `HOST_CC' in `configparms' to the
2230 native compiler for programs to run on the machine you are building on (a
2231 few generator programs are used on Unix systems); set `CC' to the
2232 cross-compiler.
2234 * The new function `fexecve' (only implemented on the GNU system) executes
2235 a program file given a file descriptor already open on the file.
2236 \f
2237 Version 1.07
2239 * Brendan Kehoe has contributed most of a port to the DEC Alpha
2240 running OSF/1 (alpha-dec-osf1). He says it is 75% complete.
2242 * You can set the variable `libprefix' in `configparms' to specify a prefix
2243 to be prepended to installed library files; this makes it easy to install
2244 the GNU C library to be linked as `-lgnuc' or whatever.
2246 * The new `stpncpy' is a cross between `stpcpy' and `strncpy': It
2247 copies a limited number of characters from a string, and returns the
2248 address of the last character written.
2250 * You no longer need to check for whether the installed `stddef.h' is
2251 compatible with the GNU C library. configure now checks for you.
2253 * You can now define a per-stream `fileno' function to convert the
2254 stream's cookie into an integral file descriptor.
2256 * ``malloc (0)'' no longer returns a null pointer. Instead, it
2257 allocates zero bytes of storage, and returns a unique pointer which
2258 you can pass to `realloc' or `free'. The behavior is undefined if
2259 you dereference this pointer.
2261 * The C library now runs on Sony NEWS m68k machines running either
2262 NewsOS 3 or NewsOS 4.
2264 * The new `syscall' function is a system-dependent primitive function
2265 for invoking system calls. It has the canonical behavior on Unix
2266 systems, including unreliable return values for some calls (such as
2267 `pipe', `fork' and `getppid').
2269 * The error code `EWOULDBLOCK' is now obsolete; it is always defined
2270 to `EAGAIN', which is the preferred name. On systems whose kernels
2271 use two distinct codes, the C library now translates EWOULDBLOCK to
2272 EAGAIN in every system call function.
2273 \f
2274 Version 1.06
2276 * The GNU C Library Reference Manual is now distributed with the library.
2277 `make dvi' will produce a DVI file of the printed manual.
2278 `make info' will produce Info files that you can read on line using C-h i
2279 in Emacs or the `info' program.
2280 Please send comments on the manual to bug-glibc-manual@gnu.org.
2282 * The library now supports SVR4 on i386s (i386-unknown-sysv4).
2284 * Brendan Kehoe has contributed a port to Sun SPARCs running Solaris 2.
2286 * Jason Merrill has contributed a port to the Sequent Symmetry running
2287 Dynix version 3 (i386-sequent-dynix).
2289 * The library has been ported to i386s running SCO 3.2.4 (also known as SCO
2290 ODT 2.0; i386-unknown-sco3.2.4) or SCO 3.2 (i386-unknown-sco3.2).
2292 * New function `memory_warnings' lets you arrange to get warnings when
2293 malloc is running out of memory to allocate, like Emacs gives you.
2295 * The C library now contains the relocating allocator used in Emacs 19 for
2296 its editing buffers. This allocator (ralloc) minimizes allocation
2297 overhead and fragmentation by moving allocated regions around whenever it
2298 needs to. You always refer to a ralloc'd region with a "handle" (a
2299 pointer to a pointer--an object of type `void **').
2301 * There is a new `printf' format: `%m' gives you the string corresponding
2302 to the error code in `errno'.
2304 * In `scanf' formats, you can now use `%as' or `%a[' to do the normal `%s'
2305 or `%[' conversion, but instead of filling in a fixed-sized buffer you
2306 pass, the `a' modifier says to fill in a `char **' you pass with a
2307 malloc'd string.
2309 * The `fnmatch' function supports the new flag bits `FNM_LEADING_DIR' and
2310 `FNM_CASEFOLD'. `FNM_LEADING_DIR' lets a pattern like `foo*' match a
2311 name like `foo/bar'. `FNM_CASEFOLD' says to ignore case in matching.
2313 * `mkstemp' is a traditional Unix function to atomically create and open a
2314 uniquely-named temporary file.
2315 \f
2316 Version 1.05
2318 * The standard location for the file that says what the local timezone is
2319 has changed again. It is now `/usr/local/etc/localtime' (or more
2320 precisely, `${prefix}/etc/localtime') rather than `/etc/localtime'.
2322 * The distribution no longer contains any files with names longer than 14
2323 characters.
2325 * `struct ttyent' has two new flag bits: TTY_TRUSTED and TTY_CONSOLE.
2326 These are set by the new `trusted' and `console' keywords in `/etc/ttys'.
2328 * New functions `ttyslot' and `syslog' from 4.4 BSD.
2329 \f
2330 Version 1.04
2332 * The configuration process has changed quite a bit. The `configure'
2333 script is now used just like the configuration scripts for other GNU
2334 packages. The `sysdeps' directory hierarchy is much rearranged.
2335 The file `INSTALL' explains the new scheme in detail.
2337 * The header files no longer need to be processed into ANSI C and
2338 traditional C versions. There is just one set of files to install, and
2339 it will work with ANSI or old C compilers (including `gcc -traditional').
2341 * Brendan Kehoe and Ian Lance Taylor have ported the library to the
2342 MIPS DECStation running Ultrix 4.
2344 * The Sun 4 startup code (crt0) can now properly load SunOS 4 shared libraries.
2345 Tom Quinn contributed the initial code. The GNU C library can NOT yet be
2346 made itself into a shared library.
2348 * Yet further improved support for the i386, running 4.3 BSD-like systems
2349 (such as Mach 3 with the Unix single-server), or System V.
2351 * New function `strncasecmp' to do case-insensitive string comparison
2352 with limited length.
2354 * New function `strsep' is a reentrant alternative to `strtok'.
2356 * New functions `scandir' and `alphasort' for searching directories.
2358 * New function `setenv' is a better interface to `putenv'.
2360 * Ian Lance Taylor has contributed an implementation of the SVID `ftw'
2361 function for traversing a directory tree.
2363 * The GNU obstack package is now also part of the C library.
2364 The new function `open_obstack_stream' creates a stdio stream that
2365 writes onto an obstack; `obstack_printf' and `obstack_vprintf' do
2366 formatted output directly to an obstack.
2368 * Miscellaneous new functions: reboot, nice, sigaltstack (4.4 BSD only),
2369 cfmakeraw, getusershell, getpass, swab, getttyent, seteuid, setegid.
2371 * `FNM_FILE_NAME' is another name for `FNM_PATHNAME', used with `fnmatch'.
2373 * The new functions `strfry' and `memfrob' do mysterious and wonderful
2374 things to your strings.
2376 * There are some new test programs: test-fseek, testmb, and testrand.
2378 * Some work has been done to begin porting the library to 4.4 BSD and Linux.
2379 These ports are not finished, but are a good starting place for really
2380 supporting those systems.
2382 * `/etc/localtime' is now the standard location for the file that says what
2383 the local timezone is, rather than `/usr/local/lib/zoneinfo/localtime'.
2384 This follows the general principle that `/etc' is the place for all local
2385 configuration files.
2387 * The C library header files now use `extern "C"' when used by the C++
2388 compiler, so the C library should now work with C++ code.
2390 * The header file <bstring.h> is gone. <string.h> now declares bcopy,
2391 bcmp, bzero, and ffs. (Update: nowadays these functions are declared
2392 in <strings.h>.)
2394 * Mike Haertel (of GNU e?grep and malloc fame) has written a new sorting
2395 function which uses the `merge sort' algorithm, and is said to be
2396 significantly faster than the old GNU `qsort' function. Merge sort is
2397 now the standard `qsort' function. The new algorithm can require a lot
2398 of temporary storage; so, the old sorting function is called when the
2399 required storage is not available.
2401 * The C library now includes Michael Glad's Ultra Fast Crypt, which
2402 provides the Unix `crypt' function, plus some other entry points.
2404 * The code and header files taken from 4.4 BSD have been updated with the
2405 latest files released from Berkeley.
2406 \f
2407 ----------------------------------------------------------------------
2408 Copyright information:
2410 Copyright (C) 1992-2014 Free Software Foundation, Inc.
2412 Permission is granted to anyone to make or distribute verbatim copies
2413 of this document as received, in any medium, provided that the
2414 copyright notice and this permission notice are preserved,
2415 thus giving the recipient permission to redistribute in turn.
2417 Permission is granted to distribute modified versions
2418 of this document, or of portions of it,
2419 under the above conditions, provided also that they
2420 carry prominent notices stating who last changed them.
2421 \f
2422 Local variables:
2423 version-control: never
2424 fill-column: 76
2425 End: