1 GNU C Library NEWS -- history of user-visible changes.
2 Copyright (C) 1992-2015 Free Software Foundation, Inc.
3 See the end for copying conditions.
5 Please send GNU C library bug reports via <http://sourceware.org/bugzilla/>
6 using `glibc' in the "product" field.
10 * The following bugs are resolved with this release:
12 6652, 10672, 12847, 12926, 13862, 14132, 14138, 14171, 14498, 15215,
13 15884, 16191, 16469, 16617, 16619, 16657, 16740, 16857, 17192, 17266,
14 17273, 17344, 17363, 17370, 17371, 17411, 17460, 17475, 17485, 17501,
15 17506, 17508, 17522, 17555, 17570, 17571, 17572, 17573, 17574, 17581,
16 17582, 17583, 17584, 17585, 17589, 17594, 17601, 17608, 17616, 17625,
17 17630, 17633, 17634, 17635, 17647, 17653, 17657, 17658, 17664, 17665,
18 17668, 17682, 17717, 17719, 17722, 17723, 17724, 17725, 17732, 17733,
19 17744, 17745, 17746, 17747, 17775, 17777, 17780, 17781, 17782, 17793,
22 * Optimized strchrnul and strrchr implementations for AArch64.
23 Contributed by ARM Ltd.
25 * i386 memcpy functions optimized with SSE2 unaligned load/store.
27 * CVE-2104-7817 The wordexp function could ignore the WRDE_NOCMD flag
28 under certain input conditions resulting in the execution of a shell for
29 command substitution when the applicaiton did not request it. The
30 implementation now checks WRDE_NOCMD immediately before executing the
31 shell and returns the error WRDE_CMDSUB as expected.
33 * CVE-2012-3406 printf-style functions could run into a stack overflow when
34 processing format strings with a large number of format specifiers.
36 * CVE-2014-9402 The nss_dns implementation of getnetbyname could run into an
37 infinite loop if the DNS response contained a PTR record of an unexpected
40 * The minimum GCC version that can be used to build this version of the GNU
41 C Library is GCC 4.6. Older GCC versions, and non-GNU compilers, can
42 still be used to compile programs using the GNU C Library.
44 * The GNU C Library is now built with -Werror by default. This can be
45 disabled by configuring with --disable-werror.
47 * New locales: tu_IN, bh_IN, raj_IN, ce_RU.
49 * The obsolete sigvec function has been removed. This was the original
50 4.2BSD interface that inspired the POSIX.1 sigaction interface, which
51 programs have been using instead for about 25 years. Of course, ABI
52 compatibility for old binaries using sigvec remains intact.
54 * Merged gettext 0.19.3 into the intl subdirectory. This fixes building
55 with newer versions of bison.
59 * The following bugs are resolved with this release:
61 6804, 9894, 12994, 13347, 13651, 14308, 14770, 15119, 15132, 15347, 15514,
62 15698, 15804, 15894, 15946, 16002, 16064, 16095, 16194, 16198, 16275,
63 16284, 16287, 16315, 16348, 16349, 16354, 16357, 16362, 16447, 16516,
64 16532, 16539, 16545, 16561, 16562, 16564, 16574, 16599, 16600, 16609,
65 16610, 16611, 16613, 16619, 16623, 16629, 16632, 16634, 16639, 16642,
66 16648, 16649, 16670, 16674, 16677, 16680, 16681, 16683, 16689, 16695,
67 16701, 16706, 16707, 16712, 16713, 16714, 16724, 16731, 16739, 16740,
68 16743, 16754, 16758, 16759, 16760, 16770, 16786, 16789, 16791, 16796,
69 16799, 16800, 16815, 16823, 16824, 16831, 16838, 16839, 16849, 16854,
70 16876, 16877, 16878, 16882, 16885, 16888, 16890, 16892, 16912, 16915,
71 16916, 16917, 16918, 16922, 16927, 16928, 16932, 16943, 16958, 16965,
72 16966, 16967, 16977, 16978, 16984, 16990, 16996, 17009, 17022, 17031,
73 17042, 17048, 17050, 17058, 17061, 17062, 17069, 17075, 17078, 17079,
74 17084, 17086, 17088, 17092, 17097, 17125, 17135, 17137, 17150, 17153,
75 17187, 17213, 17259, 17261, 17262, 17263, 17319, 17325, 17354.
77 * Reverted change of ABI data structures for s390 and s390x:
78 On s390 and s390x the size of struct ucontext and jmp_buf was increased in
79 2.19. This change is reverted in 2.20. The introduced 2.19 symbol versions
80 of getcontext, setjmp, _setjmp, __sigsetjmp, longjmp, _longjmp, siglongjmp
81 are preserved pointing straight to the same implementation as the old ones.
82 Given that, new callers will simply provide a too-big buffer to these
83 functions. Any applications/libraries out there that embed jmp_buf or
84 ucontext_t in an ABI-relevant data structure that have already been rebuilt
85 against 2.19 headers will have to rebuilt again. This is necessary in any
86 case to revert the breakage in their ABI caused by the glibc change.
88 * Support for file description locks is added to systems running the
89 Linux kernel. The standard file locking interfaces are extended to
90 operate on file descriptions, not file descriptors, via the use of
91 F_OFD_GETLK, F_OFD_SETLK, and F_OFD_SETLKW. File description locks
92 are associated with an open file instead of a process.
94 * Optimized strchr implementation for AArch64. Contributed by ARM Ltd.
96 * The minimum Linux kernel version that this version of the GNU C Library
97 can be used with is 2.6.32.
99 * Running the testsuite no longer terminates as soon as a test fails.
100 Instead, a file tests.sum (xtests.sum from "make xcheck") is generated,
101 with PASS or FAIL lines for individual tests. A summary of the results is
102 printed, including a list of failing lists, and "make check" exits with
103 error status if there were any unexpected failures. "make check
104 stop-on-test-failure=y" may be used to keep the old behavior.
106 * The am33 port, which had not worked for several years, has been removed
109 * The _BSD_SOURCE and _SVID_SOURCE feature test macros are no longer
110 supported; they now act the same as _DEFAULT_SOURCE (but generate a
111 warning). Except for cases where _BSD_SOURCE enabled BSD interfaces that
112 conflicted with POSIX (support for which was removed in 2.19), the
113 interfaces those macros enabled remain available when compiling with
114 _GNU_SOURCE defined, with _DEFAULT_SOURCE defined, or without any feature
117 * Optimized strcmp implementation for ARMv7. Contributed by ARM Ltd.
119 * Added support for TX lock elision of pthread mutexes on s390 and s390x.
120 This may improve lock scaling of existing programs on TX capable systems.
121 The lock elision code is only built with --enable-lock-elision=yes and
122 then requires a GCC version supporting the TX builtins. With lock elision
123 default mutexes are elided via __builtin_tbegin, if the cpu supports
124 transactions. By default lock elision is not enabled and the elision code
127 * CVE-2014-4043 The posix_spawn_file_actions_addopen implementation did not
128 copy the path argument. This allowed programs to cause posix_spawn to
129 deference a dangling pointer, or use an unexpected pathname argument if
130 the string was modified after the posix_spawn_file_actions_addopen
133 * All supported architectures now use the main glibc sysdeps directory
134 instead of some being in a separate "ports" directory (which was
135 distributed separately before glibc 2.17).
137 * The NPTL implementation of POSIX pthreads is no longer an "add-on".
138 On configurations that support it (all Linux configurations), it's now
139 used regardless of the --enable-add-ons switch to configure. It is no
140 longer possible to build such configurations without pthreads support.
142 * Locale names, including those obtained from environment variables (LANG
143 and the LC_* variables), are more tightly checked for proper syntax.
144 setlocale will now fail (with EINVAL) for locale names that are overly
145 long, contain slashes without starting with a slash, or contain ".." path
146 components. (CVE-2014-0475) Previously, some valid locale names were
147 silently replaced with the "C" locale when running in AT_SECURE mode
148 (e.g., in a SUID program). This is no longer necessary because of the
151 * On x86-64, the dynamic linker's lazy-binding support is now compatible
152 with application code using Intel MPX instructions. (With all previous
153 versions, the MPX register state could be clobbered when making calls
154 into or out of a shared library.) Note that while the new dynamic
155 linker is compatible with all known x86 hardware whether or not it
156 supports Intel MPX, some x86 instruction-set emulators might fail to
157 handle the new instruction encodings. This is known to affect Valgrind
158 versions up through 3.9 (but will be fixed in the forthcoming 3.10
159 release), and might affect other tools that do instruction emulation.
161 * Support for loadable gconv transliteration modules has been removed.
162 The support for transliteration modules has been non-functional for
163 over a decade, and the removal is prompted by security defects. The
164 normal gconv conversion modules are still supported. Transliteration
165 with //TRANSLIT is still possible, and the //IGNORE specifier
166 continues to be supported. (CVE-2014-5119)
168 * Decoding a crafted input sequence in the character sets IBM933, IBM935,
169 IBM937, IBM939, IBM1364 could result in an out-of-bounds array read,
170 resulting a denial-of-service security vulnerability in applications which
171 use functions related to iconv. (CVE-2014-6040)
175 * The following bugs are resolved with this release:
177 156, 387, 431, 762, 832, 926, 2801, 4772, 6786, 6787, 6807, 6810, 6981,
178 7003, 9721, 9954, 10253, 10278, 11087, 11157, 11214, 12100, 12486, 12751,
179 12986, 13028, 13982, 13985, 14029, 14032, 14120, 14143, 14155, 14286,
180 14547, 14699, 14752, 14782, 14876, 14910, 15004, 15048, 15073, 15089,
181 15128, 15218, 15268, 15277, 15308, 15362, 15374, 15400, 15425, 15427,
182 15483, 15522, 15531, 15532, 15593, 15601, 15608, 15609, 15610, 15632,
183 15640, 15670, 15672, 15680, 15681, 15723, 15734, 15735, 15736, 15748,
184 15749, 15754, 15760, 15763, 15764, 15797, 15799, 15825, 15843, 15844,
185 15846, 15847, 15849, 15850, 15855, 15856, 15857, 15859, 15867, 15886,
186 15887, 15890, 15892, 15893, 15895, 15897, 15901, 15905, 15909, 15915,
187 15917, 15919, 15921, 15923, 15939, 15941, 15948, 15963, 15966, 15968,
188 15985, 15988, 15997, 16032, 16034, 16036, 16037, 16038, 16041, 16046,
189 16055, 16071, 16072, 16074, 16077, 16078, 16103, 16112, 16143, 16144,
190 16146, 16150, 16151, 16153, 16167, 16169, 16172, 16195, 16214, 16245,
191 16271, 16274, 16283, 16289, 16293, 16314, 16316, 16330, 16337, 16338,
192 16356, 16365, 16366, 16369, 16372, 16375, 16379, 16381, 16384, 16385,
193 16386, 16387, 16390, 16394, 16398, 16400, 16407, 16408, 16414, 16430,
194 16431, 16453, 16474, 16506, 16510, 16529
196 * Slovenian translations for glibc messages have been contributed by the
197 Translation Project's Slovenian team of translators.
199 * The public headers no longer use __unused nor __block. This change is to
200 support compiling programs that are derived from BSD sources and use
201 __unused internally, and to support compiling with Clang's -fblock
202 extension which uses __block.
204 * CVE-2012-4412 The strcoll implementation caches indices and rules for
205 large collation sequences to optimize multiple passes. This cache
206 computation may overflow for large collation sequences and may cause a
207 stack or buffer overflow. This is now fixed to use a slower algorithm
208 which does not use a cache if there is an integer overflow.
210 * CVE-2012-4424 The strcoll implementation uses malloc to cache indices and
211 rules for large collation sequences to optimize multiple passes and falls
212 back to alloca if malloc fails, resulting in a possible stack overflow.
213 The implementation now falls back to an uncached collation sequence lookup
216 * CVE-2013-4788 The pointer guard used for pointer mangling was not
217 initialized for static applications resulting in the security feature
218 being disabled. The pointer guard is now correctly initialized to a
219 random value for static applications. Existing static applications need
220 to be recompiled to take advantage of the fix (bug 15754).
222 * CVE-2013-4237 The readdir_r function could write more than NAME_MAX bytes
223 to the d_name member of struct dirent, or omit the terminating NUL
224 character. (Bugzilla #14699).
226 * CVE-2013-4332 The pvalloc, valloc, memalign, posix_memalign and
227 aligned_alloc functions could allocate too few bytes or corrupt the
228 heap when passed very large allocation size values (Bugzilla #15855,
231 * CVE-2013-4458 Stack overflow in getaddrinfo with large number of results
232 for AF_INET6 has been fixed (Bugzilla #16072).
234 * New locales: ak_GH, anp_IN, ar_SS, cmn_TW, hak_TW, lzh_TW, nan_TW, pap_AW,
235 pap_CW, quz_PE, the_NP.
237 * Substantially revised locales: gd_GB, ht_HT
239 * The LC_ADDRESS field was updated to support country_car for almost all
242 * ISO 1427 definitions were updated.
244 * ISO 3166 definitions were updated.
246 * The localedef utility now supports --big-endian and --little-endian
247 command-line options to generate locales for a different system from that
248 for which the C library was built.
250 * Binary locale files now only depend on the endianness of the system for
251 which they are generated and not on other properties of that system. As a
252 consequence, binary files generated with new localedef may be incompatible
253 with old versions of the GNU C Library, and binary files generated with
254 old localedef may be incompatible with this version of the GNU C Library,
255 in the following circumstances:
257 + Locale files may be incompatible on m68k systems.
259 + Locale archive files (but not separate files for individual locales) may
260 be incompatible on systems where plain "char" is signed.
262 * The configure option --disable-versioning has been removed. Builds with
263 --disable-versioning had not worked for several years.
265 * ISO 639 definitions were updated for Chiga (cgg) and Chinese (gan, hak, czh,
266 cjy, lzh, cmn, mnp, cdo, czo, cpx, wuu, hsn, yue).
268 * SystemTap probes for malloc have been introduced.
270 * SystemTap probes for slow multiple precision fallback paths of
271 transcendental functions have been introduced.
273 * Support for powerpc64le has been added.
275 * The soft-float powerpc port now supports e500 processors.
277 * Support for STT_GNU_IFUNC symbols added for ppc32/power4+ and ppc64.
279 * A new feature test macro _DEFAULT_SOURCE is available to enable the same
280 set of header declarations that are enabled by default, even when other
281 feature test macros or compiler options such as -std=c99 would otherwise
282 disable some of those declarations.
284 * The _BSD_SOURCE feature test macro no longer enables BSD interfaces that
285 conflict with POSIX. The libbsd-compat library (which was a dummy library
286 that did nothing) has also been removed.
288 * Preliminary documentation about Multi-Thread, Async-Signal and
289 Async-Cancel Safety has been added.
291 * Change of ABI data structures for s390 and s390x:
292 On s390 and s390x the size of struct ucontext and jmp_buf was increased to
293 allow for future hardware extensions. All library functions that accept or
294 return these structures were versioned in order to provide backwards
295 compatibility with existing code. However, not all cases can be handled
296 with interface versioning. If an application embeds either structure into
297 another structure and that structure is passed to another compilation unit
298 which expects the newer larger-sized object then any access to the new
299 fields will result in undefined behaviour. Similarly any access to fields
300 that were moved by the enlarging of the structures will cause undefined
301 behaviour. To fix the undefined behaviour all objects that are part of the
302 final in-memory image must agree on the size of structures, and this may
303 require recompilation.
307 * The following bugs are resolved with this release:
309 2546, 2560, 5159, 6809, 7006, 10060, 10062, 10283, 10357, 10686, 11120,
310 11561, 12310, 12387, 12492, 12515, 12723, 13550, 13889, 13951, 13988,
311 14142, 14176, 14200, 14256, 14280, 14293, 14317, 14327, 14478, 14496,
312 14582, 14686, 14812, 14888, 14894, 14907, 14908, 14909, 14920, 14952,
313 14964, 14981, 14982, 14985, 14991, 14994, 14996, 15000, 15003, 15006,
314 15007, 15014, 15020, 15022, 15023, 15036, 15054, 15055, 15062, 15078,
315 15084, 15085, 15086, 15100, 15160, 15214, 15221, 15232, 15234, 15283,
316 15285, 15287, 15304, 15305, 15307, 15309, 15327, 15330, 15335, 15336,
317 15337, 15339, 15342, 15346, 15359, 15361, 15366, 15380, 15381, 15394,
318 15395, 15405, 15406, 15409, 15416, 15418, 15419, 15423, 15424, 15426,
319 15429, 15431, 15432, 15441, 15442, 15448, 15465, 15480, 15485, 15488,
320 15490, 15492, 15493, 15497, 15506, 15529, 15536, 15553, 15577, 15583,
321 15618, 15627, 15631, 15654, 15655, 15666, 15667, 15674, 15711, 15755,
324 * CVE-2013-2207 Incorrectly granting access to another user's pseudo-terminal
325 has been fixed by disabling the use of pt_chown (Bugzilla #15755).
326 Distributions can re-enable building and using pt_chown via the new configure
327 option `--enable-pt_chown'. Enabling the use of pt_chown carries with it
328 considerable security risks and should only be used if the distribution
329 understands and accepts the risks.
331 * CVE-2013-0242 Buffer overrun in regexp matcher has been fixed (Bugzilla
334 * CVE-2013-1914 Stack overflow in getaddrinfo with many results has been
335 fixed (Bugzilla #15330).
337 * Add support for calling C++11 thread_local object destructors on thread
338 and program exit. This needs compiler support for offloading C++11
339 destructor calls to glibc.
341 * Improved worst case performance of libm functions with double inputs and
344 * Support for priority inherited mutexes in pthread condition variables on
345 non-x86 architectures.
347 * Port to Xilinx MicroBlaze contributed by David Holsgrove.
349 * Optimized string functions for AArch64. Implemented by Marcus Shawcroft.
351 * Optimized string functions for ARM. Implemented by Will Newton and
354 * Optimized libm functions for SPARC. Implemented by David S. Miller.
356 * Support for building more of ARM glibc as Thumb-2 code. Implemented by
359 * Support for building most of MIPS glibc as MIPS16 code. Implemented by
360 Chung-Lin Tang, Maciej W. Rozycki and Maxim Kuvyrkov.
362 * Added a benchmark framework to track performance of functions in glibc.
364 * New <math.h> macro named issignaling to check for a signaling NaN (sNaN).
365 It is based on draft TS 18661 and currently enabled as a GNU extension.
367 * On Linux, the clock function now uses the clock_gettime system call
368 for improved precision, rather than old times system call.
370 * Added support for version-3 tz format files. This is needed when using
371 the tz database release 2013e or later, and affects a few unusual cases --
372 currently only TZ='America/Godthab' for time stamps after 2037.
374 * Added new API functions pthread_getattr_default_np and
375 pthread_setattr_default_np to get and set the default pthread
376 attributes of a process.
378 * Added support for TSX lock elision for pthread mutexes on i386 and x86-64.
379 This may improve lock scaling of existing programs on TSX capable systems.
380 When the --enable-lock-elision=yes parameter is specified at configure
381 time lock elision will be enabled by default for all PTHREAD_MUTEX_DEFAULT
384 * Support added for AT_HWCAP2 (to coincide with Linux kernel 3.10
385 availability). Implemented by Ryan S. Arnold.
387 * Support added for POWER8 platform. Implemented by Ryan S. Arnold.
391 * The following bugs are resolved with this release:
393 1349, 3439, 3479, 3665, 5044, 5246, 5298, 5400, 6530, 6677, 6778, 6808,
394 9685, 9914, 10014, 10038, 10114, 10191, 10631, 10873, 11438, 11607, 11638,
395 11741, 12140, 13013, 13412, 13542, 13601, 13603, 13604, 13629, 13679,
396 13696, 13698, 13717, 13741, 13759, 13761, 13763, 13881, 13939, 13950,
397 13952, 13966, 14042, 14047, 14090, 14150, 14151, 14152, 14154, 14157,
398 14166, 14173, 14195, 14197, 14237, 14246, 14251, 14252, 14283, 14298,
399 14303, 14307, 14328, 14331, 14336, 14337, 14347, 14349, 14368, 14376,
400 14417, 14447, 14459, 14476, 14477, 14501, 14505, 14510, 14516, 14518,
401 14519, 14530, 14532, 14538, 14543, 14544, 14545, 14557, 14562, 14568,
402 14576, 14579, 14583, 14587, 14595, 14602, 14610, 14621, 14638, 14645,
403 14648, 14652, 14660, 14661, 14669, 14672, 14683, 14694, 14716, 14719,
404 14743, 14767, 14783, 14784, 14785, 14793, 14796, 14797, 14801, 14803,
405 14805, 14807, 14811, 14815, 14821, 14822, 14824, 14828, 14831, 14833,
406 14835, 14838, 14856, 14863, 14865, 14866, 14868, 14869, 14871, 14872,
407 14879, 14889, 14893, 14898, 14914.
409 * Optimization of memcpy for MIPS.
411 * CVE-2011-4609 svc_run() produces high cpu usage when accept fails with
412 EMFILE has been fixed (Bugzilla #14889).
414 * The add-on ports collection is now distributed in the "ports" subdirectory
415 of the main GNU C Library distribution, rather than separately.
417 * Port to ARM AArch64 contributed by Linaro.
419 * Support for STT_GNU_IFUNC symbols added for s390 and s390x.
420 Optimized versions of memcpy, memset, and memcmp added for System z10 and
422 Implemented by Andreas Krebbel.
424 * The new function secure_getenv allows secure access to the environment,
425 returning NULL if running in a SUID/SGID process. This function replaces
426 the internal function __secure_getenv.
428 * SystemTap static probes have been added into the dynamic linker.
429 Implemented by Gary Benson.
431 * Optimizations of string functions strstr, strcasestr and memmem.
432 Implemented by Maxim Kuvyrkov.
434 * The minimum Linux kernel version that this version of the GNU C Library
435 can be used with is 2.6.16.
437 * Optimizations of string functions memchr, wcschr, wcscpy, and wcsrchr for
438 powerpc POWER7. Implemented by Will Schmidt.
440 * New configure option --disable-nscd builds the C library such that it
441 never attempts to contact the Name Service Caching Daemon (nscd).
442 New configure option --disable-build-nscd avoids building nscd itself;
443 this is the default if --disable-nscd is used.
445 * Improved support for cross-compilation, including cross-testing and
446 bootstrap builds without a previously built glibc.
448 * Several testsuite tests are now able to test multiple IFUNC variants of an
449 interface, rather than just testing the one that would be chooen by
452 * New configure options --with-bugurl and --with-pkgversion, for
453 distributors to use to embed their bug-reporting and package version
454 information in --help and --version output.
456 * The ttyname and ttyname_r functions on Linux now fall back to searching for
457 the tty file descriptor in /dev/pts or /dev if /proc is not available. This
458 allows creation of chroots without the procfs mounted on /proc.
460 * The `crypt' function now fails if passed salt bytes that violate the
461 specification for those values. On Linux, the `crypt' function will
462 consult /proc/sys/crypto/fips_enabled to determine if "FIPS mode" is
463 enabled, and fail on encrypted strings using the MD5 or DES algorithm
464 when the mode is enabled.
466 * The `clock_*' suite of functions (declared in <time.h>) is now available
467 directly in the main C library. Previously it was necessary to link with
468 -lrt to use these functions. This change has the effect that a
469 single-threaded program that uses a function such as `clock_gettime' (and
470 is not linked with -lrt) will no longer implicitly load the pthreads
471 library at runtime and so will not suffer the overheads associated with
472 multi-thread support in other code such as the C++ runtime library.
474 * New locales: ayc_PE, doi_IN, ia_FR, mni_IN, nhn_MX, niu_NU, niu_NZ,
479 * The following bugs are resolved with this release:
481 174, 208, 350, 369, 411, 706, 766, 887, 2074, 2541, 2547, 2548, 2550,
482 2551, 2552, 2553, 2554, 2562, 2563, 2565, 2566, 2570, 2576, 2636, 2678,
483 3335, 3440, 3748, 3768, 3866, 3868, 3906, 3976, 3992, 4026, 4108, 4596,
484 4822, 5077, 5461, 5805, 5993, 6471, 6486, 6578, 6649, 6730, 6770, 6794,
485 6884, 6890, 6894, 6895, 6907, 6911, 6959, 7064, 9739, 9902, 10110, 10135,
486 10140, 10153, 10210, 10254, 10346, 10375, 10545, 10716, 10846, 11174,
487 11261, 11322, 11365, 11451, 11494, 11521, 11677, 11837, 11959, 12047,
488 12097, 12193, 12194, 12297, 12298, 12301, 12340, 12354, 12416, 12495,
489 13058, 13223, 13361, 13525, 13526, 13527, 13528, 13529, 13530, 13531,
490 13532, 13533, 13547, 13551, 13552, 13553, 13555, 13556, 13559, 13563,
491 13566, 13576, 13579, 13583, 13592, 13594, 13613, 13618, 13637, 13656,
492 13658, 13673, 13691, 13695, 13704, 13705, 13706, 13718, 13726, 13738,
493 13739, 13743, 13750, 13758, 13760, 13761, 13775, 13786, 13787, 13792,
494 13806, 13824, 13840, 13841, 13844, 13846, 13848, 13851, 13852, 13854,
495 13871, 13872, 13873, 13879, 13882, 13883, 13884, 13885, 13886, 13892,
496 13895, 13908, 13910, 13911, 13912, 13913, 13914, 13915, 13916, 13917,
497 13918, 13919, 13920, 13921, 13922, 13923, 13924, 13926, 13927, 13928,
498 13938, 13941, 13942, 13954, 13955, 13956, 13963, 13967, 13968, 13970,
499 13973, 13979, 13983, 13986, 13996, 14012, 14027, 14033, 14034, 14036,
500 14040, 14043, 14044, 14048, 14049, 14050, 14053, 14055, 14059, 14064,
501 14075, 14080, 14083, 14103, 14104, 14109, 14112, 14117, 14122, 14123,
502 14134, 14153, 14183, 14188, 14199, 14210, 14218, 14229, 14241, 14273,
505 * Support for the x32 ABI on x86-64 added. The x32 target is selected by
506 configuring glibc with:
507 BUILD_CC='gcc' CC='gcc -mx32' CXX='g++ -mx32'
508 Visit <http://sites.google.com/site/x32abi/> for more x32 ABI info.
509 Implemented by H.J. Lu.
513 + define static_assert
515 + do not declare gets
517 + declare at_quick_exit and quick_exit also for ISO C11
519 + aligned_alloc. NB: The code is deliberately allows the size parameter
520 to not be a multiple of the alignment. This is a moronic requirement
521 in the standard but it is only a requirement on the caller, not the
526 + uchar.h support added
528 + CMPLX, CMPLXF, CMPLXL added
530 Implemented by Ulrich Drepper.
532 * Support for the IA-64 has been moved to ports.
534 * Remove support for anything but ELF binary format
536 * Checking versions of poll, ppoll added.
537 Implemented by Ulrich Drepper.
539 * More generic and 64-bit performance optimizations to math functions.
540 Implemented by Ulrich Drepper.
542 * New configure option --enable-obsolete-rpc makes the deprecated RPC
543 headers and functions available at compile time as they were before
544 version 2.14. This option will be removed at some time in the future
545 after the TI-RPC library becomes fully sufficient for the needs of
546 existing applications.
548 * Compatibility code for Linux kernel versions before 2.4 has been removed.
549 Note that glibc is not expected to work with any Linux kernel version
552 * New header <sys/auxv.h> and function getauxval allowing easy access to
553 the AT_* key-value pairs passed from the Linux kernel. The header also
554 defines the HWCAP_* bits associated with the AT_HWCAP key.
556 * New locales: mag_IN
558 * New configure option --enable-systemtap builds SystemTap static probes
559 into libc for setjmp and longjmp and into libpthread for various operations.
560 So far the setjmp/longjmp probes and some of the libpthread probes are
561 provided only for i*86 and x86_64.
562 Implemented by Roland McGrath and Rayson Ho.
564 * Optimized expf for x86-32 and x86-64. Implemented by Liubov Dmitrieva.
566 * More optimized functions for PowerPC. Implemented by Adhemerval Zanella
569 * More optimized functions for SPARC. Implemented by David S. Miller.
571 * Improved support for cross-compilation, especially bootstrap builds
572 without a previously built glibc.
574 * Ports for the TILE-Gx and TILEPro families of processors. Contributed by
575 Chris Metcalf from Tilera.
577 * Support for the old ARM ABI has been removed from ports. Only the EABI is
578 now supported for ARM processors.
580 * The hard-float variant of the ARM EABI now uses /lib/ld-linux-armhf.so.3
581 as the name of the dynamic linker, to distinguish it from the
582 /lib/ld-linux.so.3 dynamic linker used for the base EABI.
584 * Support for CRIS has been removed from ports.
586 * A new class of installed header has been documented for low-level
587 platform-specific functionality. PowerPC added the first instance with a
588 function to provide time base register access. Contributed by Tulio
589 Magno Quites Machado Filho.
591 * ix86 configurations now install header files that are consistent with
592 what x86-64 configurations install. These same header files can be used
593 for -m32, -m64, or -mx32 builds.
594 Contributed by H.J. Lu.
596 * Math library bug fixes. A thorough audit of all open math library bugs was
597 conducted by Joseph Myers. Significant progress was made on many math
598 library bugs resulting in more accurate exceptions and function results.
599 Many thanks to all those that contributed including Andreas Jaeger for his
600 patch review and work on the x87 trigonometric instruction issues.
602 * Timezone data is no longer installed. Timezone-related binaries and scripts
603 will continue to be installed. Users should obtain their timezone data from
604 their distribution provider or from the tzdata package at
605 <ftp://munnari.oz.au/pub/>.
609 * The following bugs are resolved with this release:
611 6779, 6783, 9696, 10103, 10709, 11589, 11929, 12403, 12786, 12840, 12847,
612 12868, 12852, 12874, 12885, 12892, 12906, 12907, 12922, 12935, 12962,
613 13007, 13021, 13061, 13062, 13067, 13068, 13085, 13088, 13090, 13092,
614 13096, 13114, 13118, 13123, 13134, 13138, 13147, 13150, 13166, 13179,
615 13185, 13189, 13192, 13268, 13276, 13282, 13291, 13305, 13328, 13335,
616 13337, 13344, 13358, 13367, 13413, 13416, 13423, 13439, 13446, 13472,
617 13484, 13506, 13515, 13523, 13524, 13538, 13540
619 * New program pldd to list loaded object of a process
620 Implemented by Ulrich Drepper.
622 * Add nss_db support back to glibc. No more dependency on Berkeley db
623 and support for initgroups lookups.
624 Implemented by Ulrich Drepper.
626 * Optimized strcpy, strncpy, stpcpy, stpncpy for SSE2 and SSSE3 on x86-32.
627 Contributed by HJ Lu.
629 * Improved strcpy, strncpy, stpcpy, stpncpy for SSE2 and SSSE3 on x86-64.
630 Contributed by HJ Lu.
632 * Optimized strcat, strncat on x86-64 and optimized wcscmp, wcslen, strnlen
633 on x86-32 and x86-64.
634 Contributed by Liubov Dmitrieva.
636 * Optimized strchr and strrchr for SSE on x86-32.
637 Contributed by Liubov Dmitrieva.
639 * Optimized memchr, memrchr, rawmemchr, memcmp, wmemcmp, wcschr, wcscpy
640 for x86-64 and x86-32.
641 Contributed by Liubov Dmitrieva.
643 * New interfaces: scandirat, scandirat64
644 Implemented by Ulrich Drepper.
646 * Checking versions of FD_SET, FD_CLR, and FD_ISSET added.
647 Implemented by Ulrich Drepper.
649 * nscd now also caches the netgroup database.
650 Implemented by Ulrich Drepper.
652 * Integrate libm with gcc's -ffinite-math-only option.
653 Implemented by Ulrich Drepper.
655 * Lots of generic, 64-bit, and x86-64-specific performance optimizations
656 to math functions. Implemented by Ulrich Drepper.
658 * Optimized strcasecmp and strncasecmp for AVX on x86-64.
659 Implemented by Ulrich Drepper.
661 * New Linux interfaces: process_vm_readv, process_vm_writev
663 * Optimized strcasecmp and strncasecmp for SSSE3 and SSE4.2 on x86-32.
664 Implemented by Ulrich Drepper.
666 * Optimized nearbyint and strcasecmp for PPC.
667 Implemented by Adhemerval Zanella.
669 * New locales: bho_IN, unm_US, es_CU, ta_LK
673 * The following bugs are resolved with this release:
675 386, 6420, 7101, 9730, 9732, 9809, 10138, 10149, 10157, 11099, 11257,
676 11258, 11487, 11532, 11558, 11578, 11634, 11653, 11668, 11697, 11724,
677 11781, 11799, 11820, 11837, 11857, 11869, 11892, 11895, 11901, 11945,
678 11947, 11952, 11987, 12052, 12083, 12158, 12178, 12200, 12346, 12350,
679 12393, 12420, 12432, 12445, 12449, 12453, 12454, 12460, 12469, 12489,
680 12509, 12510, 12511, 12518, 12527, 12541, 12545, 12551, 12582, 12583,
681 12587, 12597, 12601, 12611, 12625, 12626, 12631, 12650, 12653, 12655,
682 12660, 12671, 12681, 12684, 12685, 12711, 12713, 12714, 12717, 12723,
683 12724, 12734, 12738, 12746, 12766, 12775, 12777, 12782, 12788, 12792,
684 12795, 12811, 12813, 12814, 12841
686 * The RPC implementation in libc is obsoleted. Old programs keep working
687 but new programs cannot be linked with the routines in libc anymore.
688 Programs in need of RPC functionality must be linked against TI-RPC.
689 The TI-RPC implementation is IPv6 enabled and there are other benefits.
691 Visible changes of this change include (obviously) the inability to link
692 programs using RPC functions without referencing the TI-RPC library and the
693 removal of the RPC headers from the glibc headers.
694 Implemented by Ulrich Drepper.
696 * New Linux interfaces: clock_adjtime, name_to_handle_at, open_by_handle_at,
697 syncfs, setns, sendmmsg
699 * New locales: os_RU, bem_ZA, en_ZA, ff_SN, sw_KE, sw_TZ, lb_LU, wae_CH,
700 yue_HK, lij_IT, mhr_RU
702 * New encodings: CP770, CP771, CP772, CP773, CP774
704 * New program sotruss to trace calls through PLTs
705 Implemented by Ulrich Drepper.
707 * The malloc hook implementation is marked deprecated and will be removed
708 from the default implementation in the next version. The design never
709 worked ever since the introduction of threads. Even programs which do
710 not create threads themselves can use multiple threads created internally.
714 * The following bugs are resolved with this release:
716 3268, 6812, 7066, 10085, 10484, 10563, 10851, 11149, 11155, 11577, 11611,
717 11640, 11655, 11701, 11840, 11856, 11883, 11903, 11904, 11968, 11979,
718 12005, 12037, 12067, 12077, 12078, 12092, 12093, 12107, 12108, 12113,
719 12140, 12159, 12167, 12191, 12194, 12201, 12204, 12205, 12207, 12348,
722 * New Linux interfaces: prlimit, prlimit64, fanotify_init, fanotify_mark
724 * POWER7 optimizations: memset, memcmp, strncmp
726 * New optimized string functions for x86-64: strnlen (SSE2),
727 strcasecmp (SSE2, SSSE3, SSE4.2), strncasecmp (SSE2, SSSE3, SSE4.2)
728 Implemented by Ulrich Drepper.
732 * The following bugs are resolved with this release:
734 3662, 4457, 5553, 10162, 10401, 10414, 10554, 10824, 10864, 10915,
735 10918, 10936, 10939, 10958, 10968, 10969, 10972, 10992, 11000, 11001,
736 11007, 11010, 11027, 11039, 11040, 11041, 11043, 11046, 11056, 11070,
737 11093, 11115, 11125, 11126, 11127, 11134, 11141, 11149, 11183, 11184,
738 11185, 11186, 11187, 11188, 11189, 11190, 11191, 11192, 11193, 11194,
739 11200, 11230, 11235, 11242, 11254, 11258, 11271, 11272, 11276, 11279,
740 11287, 11292, 11319, 11332, 11333, 11387, 11389, 11390, 11394, 11397,
741 11410, 11438, 11449, 11470, 11471, 11520, 11537, 11538, 11571
743 * New interfaces: pthread_getname_np, pthread_setname_np
745 * New Linux interface: recvmmsg
747 * STT_GNU_IFUNC implemented for Sparc by David Miller.
749 * The dynamic linker now recognizes supported ABI versions from the
750 EI_ABIVERSION field in the ELF header.
751 Implemented by Ulrich Drepper.
753 * New NIS mode selector ADJUNCT_AS_SHADOW. The passwd.adjunct.byname table
754 will not be used to fill in password fields in the passwd.byname replies.
755 Instead it is used to synthesize the shadow.byname table, should it be
756 missing. This is a useful mode in some installations involving Solaris.
757 Implemented by Ulrich Drepper.
759 * New locales: kok_IN, sq_MK, cv_RU
763 * The following bugs are resolved with this release:
765 3270, 7094, 9924, 9986, 10011, 10085, 10107, 10159, 10162, 10166, 10183,
766 10195, 10196, 10200, 10203, 10207, 10211, 10213, 10217, 10221, 10229,
767 10262, 10286, 10312, 10315, 10319, 10349, 10360, 10391, 10402, 10416,
768 10418, 10422, 10425, 10446, 10448, 10452, 10540, 10553, 10560, 10564,
769 10609, 10643, 10692, 10713, 10717, 10730, 10731, 10742, 10780, 10784,
770 10789, 10817, 10823, 10840, 10847
772 * New interfaces: execvpe, pthread_sigqueue, mkstemps, mkstemps64, mkostemps,
774 Implemented by Ulrich Drepper.
776 * Checking version of longjmp added that fails if an uninitialized stack
777 frame would be created. Implemented by Ulrich Drepper.
779 * STT_GNU_IFUNC is now supported in static executables.
780 Implemented by H.J. Lu.
782 * STT_GNU_IFUNC implemented for PPC by Alan Modra.
784 * New optimized string functions for x86-64: strstr, strcasestr, memcmp,
785 strcspn, strpbrk, strspn, strcpy, stpcpy, strncpy, strcmp (SSE2, SSE4.2),
786 strncmp (SSE2, SSE4.2), strchr (SSE4.2), strrchr (SSE4.2).
787 Contributed by H.J. Lu.
789 strlen, rawmemchr, strcmp (SSSE3), strncmp (SSSE3).
790 Implemented by Ulrich Drepper.
792 * New optimized string functions for x86: strlen, strcspn, strspn, strpbrk,
794 Contributed by H.J. Lu.
796 * Support for fma instruction in AVX on x86-64.
797 Implemented by H.J. Lu and Ulrich Drepper.
799 * AVX support in x86-64 auditing support in ld.so.
800 Implemented by H.J. Lu.
802 * STB_GNU_UNIQUE support added.
803 Implemented by Ulrich Drepper.
805 * Implement second fallback mode for optimized DNS lookup for even more
806 broken environments. If two requests from the same port are not
807 handled correctly close the socket and open a new one before sending
808 the second request. The 'single-request-reopen' option in /etc/resolv.conf
809 can be used to select this mode right away, instead of rediscovering the
810 necessity is every process again.
811 Implemented by Ulrich Drepper.
813 * New resolver flag RES_USE_DNSSEC to enable use of verified lookup.
814 Implemented by Adam Tkac.
816 * Optimized iconv conversions for S390x.
817 Implemented by Andreas Krebbel.
819 * Using condvars with PI mutexes is now more efficient due to kernel
820 support for requeueing to PI futexes. NPTL support added for x86-64.
821 Implemented by Ulrich Drepper.
823 * New locales: ps_AF, my_MM
827 * The following bugs are resolved with this release:
829 697, 5381, 5807, 6411, 6545, 7040, 7058, 7067, 7080, 7083, 7095, 7098,
830 9677, 9694, 9697, 9701, 9704, 9705, 9706, 9720, 9726, 9730, 9733, 9736,
831 9741, 9750, 9753, 9759, 9781, 9791, 9793, 9823, 9833, 9844, 9880, 9881,
832 9891, 9893, 9895, 9913, 9916, 9920, 9948, 9955, 9957, 9963, 9985, 10052,
833 10069, 10086, 10087, 10090, 10092, 10093, 10100, 10118, 10128
835 * New interfaces: preadv, preadv64, pwritev, pwritev64, malloc_info
836 Implemented by Ulrich Drepper.
838 * New Linux interfaces: accept4, fallocate, fallocate64.
839 Implemented by Ulrich Drepper.
841 * Correct declarations of string function when used in C++ code. This
842 could lead to compile errors for invalid C++ code.
844 * XPG7/POSIX 2008 compilation environment. Many GNU-specific functions are
847 * New POSIX 2008 interface: psiginfo
848 Implemented by Ulrich Drepper.
850 * New ISO C++1x interfaces: quick_exit, at_quick_exit
851 Implemented by Ulrich Drepper.
853 * Support for selecting between multiple function definitions at runtime
854 using STT_GNU_IFUNC symbols. Implemented by Ulrich Drepper.
856 * The libcrypt library can now use the hash function implementations in
857 NSS. Implemented by Ulrich Drepper.
859 * The malloc implementation can be compiled to be less memory efficient
860 but higher performing in multi-threaded programs.
861 Implemented by Ulrich Drepper.
863 * New locales: nan_TW@latin, ks_IN
865 * Faster strlen, strchr, strchrnul, strrchr, memchr, and rawmemchr for x86-64.
866 Implemented by Ulrich Drepper.
868 * Extended printf hook support. It is possible to use user-defined types
869 and extend existing format specifiers.
870 Implemented by Ulrich Drepper.
872 * Handling for group shadow files has been added.
873 Implemented by Ulrich Drepper.
875 * DNS IPv4-IPv6 parallel lookup now deals better with broken DNS
876 servers (the case, e.g., for some people using the built-in DNS
877 server in ADSL modems/routers). There is a once-per-process timeout
878 in case of a broken server. To avoid it, users can run nscd or put
879 'options single-request' in /etc/resolv.conf.
880 Implemented by Ulrich Drepper.
884 * The following bugs are resolved with this release:
886 3406, 5209, 5210, 5381, 5794, 5814, 5911, 6428, 6438, 6442, 6447, 6461,
887 6472, 6505, 6544, 6589, 6612, 6634, 6653, 6654, 6657, 6698, 6712, 6713,
888 6719, 6723, 6724, 6740, 6763, 6771, 6790, 6791, 6817, 6824, 6839, 6843,
889 6845, 6856, 6857, 6860, 6867, 6875, 6919, 6920, 6942, 6947, 6955, 6966,
890 6968, 6974, 6980, 6995, 7008, 7009, 7029
892 * Unified lookup for getaddrinfo: IPv4 and IPv6 addresses are now looked
893 up at the same time. Implemented by Ulrich Drepper.
895 * TLS descriptors for LD and GD on x86 and x86-64.
896 Implemented by Alexandre Oliva.
898 * getaddrinfo now handles DCCP and UDPlite.
899 Implemented by Ulrich Drepper.
901 * New fixed-size conversion macros: htobe16, htole16, be16toh, le16toh,
902 htobe32, htole32, be32toh, le32toh, htobe64, htole64, be64toh, le64toh.
903 Implemented by Ulrich Drepper.
905 * New implementation of memmem, strstr, and strcasestr which is O(n).
906 Implemented by Eric Blake.
908 * New Linux interfaces: inotify_init1, dup3, epoll_create1, pipe2
910 * Implement "e" option for popen to open file descriptor with the
911 close-on-exec flag set. Implemented by Ulrich Drepper.
913 * Implement "b" mode for fmemopen. In this mode writes writes don't
914 implicitly add a NUL byte and seeks from the end of the buffer really
915 use the buffer end, not the string length as the basis.
916 Implemented by Ulrich Drepper.
918 * Many functions, exported and internal, now atomically set the close-on-exec
919 flag when run on a sufficiently new kernel. Implemented by Ulrich Drepper.
921 * Sorting rules for some Indian languages (Kannada, Gurumukhi, Telugu,
923 Implemented by Pravin Satpute.
925 * New locales: sd_IN, sd_IN@devanagari, ks_IN@devanagari, ht_HT, en_AG, nl_AW.
929 * The following bugs are resolved with this release:
931 2549, 3112, 4314, 4407, 4997, 5012, 5040, 5112, 5204, 5208, 5209, 5220,
932 5222, 5224, 5225, 5237, 5238, 5240, 5245, 5277, 5346, 5375, 5378, 5382,
933 5424, 5427, 5428, 5435, 5436, 5439, 5441, 5442, 5443, 5451, 5452, 5454,
934 5455, 5463, 5464, 5465, 5475, 5477, 5478, 5520, 5541, 5545, 5553, 5600,
935 5602, 5607, 5614, 5627, 5628, 5736, 5737, 5741, 5753, 5760, 5762, 5768,
936 5774, 5777, 5778, 5779, 5786, 5790, 5818, 5854, 5857, 5903, 5939, 5979,
937 5983, 5995, 5998, 6004, 6007, 6020, 6021, 6024, 6040, 6042
939 * New locales: bo_CN, bo_IN, shs_CA.
941 * New encoding: HP-ROMAN9, HP-GREEK8, HP-THAI8, HP-TURKISH8.
943 * Sorting rules for some Indian languages (Devanagari and Gujarati).
944 Implemented by Pravin Satpute.
946 * IPV6 addresses in /etc/resolv.conf can now have a scope ID
948 * nscd caches now all timeouts for DNS entries
949 Implemented by Ulrich Drepper.
951 * nscd is more efficient and wakes up less often.
952 Implemented by Ulrich Drepper.
954 * More checking functions: asprintf, dprintf, obstack_printf, vasprintf,
955 vdprintf, and obstack_vprintf.
956 Implemented by Jakub Jelinek.
958 * Faster memset for x86-64.
959 Implemented by Harsha Jagasia and H.J. Lu.
961 * Faster memcpy on x86.
962 Implemented by Ulrich Drepper.
964 * ARG_MAX is not anymore constant on Linux. Use sysconf(_SC_ARG_MAX).
965 Implemented by Ulrich Drepper.
967 * Faster sqrt and sqrtf implemention for some PPC variants.
968 Implemented by Steven Munroe.
972 * The following bugs are resolved with this release:
974 4125, 4126, 4178, 4359, 4407, 4512, 4514, 4525, 4554, 4556, 4557, 4566,
975 4582, 4586, 4588, 4599, 4610, 4647, 4702, 4705, 4726, 4745, 4772, 4773,
976 4775, 4776, 4792, 4813, 4814, 4816, 4833, 4858, 4860, 4896, 4905, 4925,
977 4936, 4937, 4938, 4941, 4946, 4963, 4972, 5010, 5028, 5043, 5058, 5063,
978 5071, 5103, 5104, 5112, 5113, 5184, 5186
980 * More checking functions: fread, fread_unlocked, open*, mq_open.
981 Implemented by Jakub Jelinek and Ulrich Drepper.
983 * Extend fortification to C++. Implemented by Jakub Jelinek.
985 * Implement 'm' modifier for scanf. Add stricter C99/SUS compliance
986 by not recognizing 'a' as a modifier when those specs are requested.
987 Implemented by Jakub Jelinek.
989 * PPC optimizations to math and string functions.
990 Implemented by Steven Munroe.
992 * New interfaces: mkostemp, mkostemp64. Like mkstemp* but allow additional
993 options to be passed. Implemented by Ulrich Drepper.
995 * More CPU set manipulation functions. Implemented by Ulrich Drepper.
997 * New Linux interfaces: signalfd, eventfd, eventfd_read, and eventfd_write.
998 Implemented by Ulrich Drepper.
1000 * Handle private futexes in the NPTL implementation.
1001 Implemented by Jakub Jelinek and Ulrich Drepper.
1003 * Add support for O_CLOEXEC. Implement in Hurd. Use throughout libc.
1004 Implemented by Roland McGrath and Ulrich Drepper.
1006 * Linux/x86-64 vDSO support. Implemented by Ulrich Drepper.
1008 * SHA-256 and SHA-512 based password encryption.
1009 Implemented by Ulrich Drepper.
1011 * New locales: ber_DZ, ber_MA, en_NG, fil_PH, fur_IT, fy_DE, ha_NG, ig_NG,
1012 ik_CA, iu_CA, li_BE, li_NL, nds_DE, nds_NL, pap_AN, sc_IT, tk_TM, ug_CN,
1015 + New iconv modules: MAC-CENTRALEUROPE, ISO-8859-9E, KOI8-RU.
1016 Implemented by Ulrich Drepper.
1020 * The following bugs are resolved with this release:
1022 3156, 3213, 3285, 3291, 3306, 3313, 3320, 3322, 3325, 3326, 3334, 3348,
1023 3352, 3363, 3369, 3426, 3427, 3429, 3451, 3458, 3465, 3480, 3483, 3493,
1024 3514, 3515, 3559, 3632, 3664, 3673, 3674, 3745, 3747, 3818, 3840, 3842,
1025 3851, 3855, 3884, 3885, 3902, 3905, 3919, 3944, 3954, 3955, 3957, 3991,
1026 3995, 3996, 4024, 4040, 4069, 4070, 4074, 4076, 4096, 4101, 4102, 4114,
1027 4130, 4131, 4181, 4276, 4306, 4342, 4344, 4349, 4364, 4368, 4381, 4392,
1028 4403, 4405, 4406, 4411, 4438, 4439, 4455, 4456, 4465, 4512, 4514, 4586,
1031 * New Linux interfaces: epoll_pwait, sched_getcpu.
1033 * New generic interfaces: strerror_l.
1035 * nscd can now cache the services database. Implemented by Ulrich Drepper.
1039 * The following bugs are resolved with this release:
1041 39, 68, 192, 352, 388, 531, 935, 1006, 1201, 1203, 1386, 1782, 1783, 1784,
1042 1785, 1786, 1787, 1951, 1974, 1996, 2072, 2098, 2125, 2134, 2158, 2182,
1043 2349, 2376, 2386, 2389, 2415, 2418, 2420, 2423, 2450, 2451, 2466, 2472,
1044 2473, 2477, 2498, 2499, 2501, 2502, 2505, 2507, 2508, 2509, 2517, 2526,
1045 2569, 2571, 2592, 2611, 2625, 2632, 2644, 2662, 2680, 2683, 2684, 2693,
1046 2695, 2703, 2734, 2751, 2764, 2766, 2775, 2792, 2821, 2823, 2832, 2841,
1047 2843, 2883, 2892, 2908, 2914, 2926, 2961, 2978, 2980, 2987, 2997, 2998,
1048 3013, 3018, 3034, 3040, 3044, 3123, 3124, 3137, 3138, 3143, 3155, 3189,
1049 3225, 3251, 3252, 3253, 3273
1051 * For Linux, the sorting of addresses returned by getaddrinfo now also
1052 handles rules 3, 4, and 7 from RFC 3484. I.e., all rules are handled.
1053 Implemented by Ulrich Drepper.
1055 * Allow system admin to configure getaddrinfo with the /etc/gai.conf file.
1056 Implemented by Ulrich Drepper.
1058 * New Linux interfaces: splice, tee, sync_file_range, vmsplice.
1060 * New iconv module for MIK. Contributed by Alexander Shopov.
1062 * For sites with broken group and/or passwd database, the auto-propagate
1063 option of nscd can prevent creating ID lookup entries from the results
1064 of a name lookup and vice versa. This usually is no problem but some
1065 site might have problems with the default behavior.
1066 Implemented by Ulrich Drepper.
1068 * Iterating over entire database in NIS can be slow. With the
1069 SETENT_BATCH_READ option in /etc/default/nss a system admin can decide
1070 to trade time for memory. The entire database will be read at once.
1071 Implemented by Ulrich Drepper.
1073 * The interfaces introduced in RFC 3542 have been implemented by
1076 * Support for the new ELF hash table format was added by Ulrich Drepper.
1078 * Support for priority inheritance mutexes added by Jakub Jelinek and
1081 * Support for priority protected mutexes added by Jakub Jelinek.
1083 * New locales: nr_ZA, pa_PK, ca_AD, ca_FR, ca_IT, el_CY, tr_CY, as_IN,
1084 or_IN, csb_PL, fy_NL, sr_ME.
1088 * More overflow detection functions.
1090 * New iconv converters for IBM1025, IBM1122, IBM1137, IBM1153,
1091 IBM1154, IBM1155, IBM1156, IBM1157, and IBM1158 contributed by Jiro Sekiba.
1093 More converters for IBM803, IBM901, IBM902, IBM921, IBM1008, IBM1097,
1094 IBM1112, IBM1123, IBM1130, IBM1140, IBM1141, IBM1142, IBM1143, IBM1144,
1095 IBM1145, IBM1146, IBM1147, IBM1148, IBM1149, IBM1166, IBM1167, IBM4517,
1096 IBM4899, IBM4909, IBM4971, IBM5347, IBM9030, IBM9066, IBM9448, IBM12712,
1097 IBM16804, IBM1364, IBM1371, IBM1388, IBM1390, and IBM1399 contributed
1098 by Masahide Washizawa.
1100 * It is now possible to install audit libraries for the dynamic linker using
1101 LD_AUDIT. Implemented by Ulrich Drepper.
1103 * The LinuxThreads add-on, providing pthreads on Linux 2.4 kernels, is no
1104 longer supported. The new NPTL implementation requires Linux 2.6 kernels.
1105 For a libc and libpthread that works well on Linux 2.4 kernels, we
1106 recommend using the stable 2.3 branch.
1108 * The new function open_wmemstream acts like open_memstream,
1109 but uses a wchar_t wide character buffer.
1111 * The new function ppoll is an improved version of poll, similar to pselect.
1113 * New interfaces: fdopendir, openat, fstatat, fchmodat, fchownat,
1114 futimesat, faccessat, mkdirat, mkfifoat, mknodat,
1115 renameat, unlinkat, linkat, symlinkat, readlinkat.
1117 * New Linux kernel system calls: unshare,
1118 inotify_init, inotify_add_watch, inotify_rm_watch.
1120 * The euidaccess function is now also known by the alias eaccess,
1121 for compatibility with some other systems.
1123 * Timezone data updated to 2006b version.
1127 * The following bugs are resolved with this release:
1129 38, 253, 549, 622, 653, 721, 758, 851, 877, 915, 934, 955, 961,
1130 1016, 1037, 1076, 1079, 1080, 1081, 1082, 1083, 1084, 1085, 1086,
1131 1087, 1088, 1090, 1091, 1092, 1093, 1094, 1095, 1096, 1097, 1098,
1132 1099, 1100, 1101, 1102, 1103, 1104, 1105, 1106, 1107, 1108, 1109,
1133 1110, 1111, 1112, 1113, 1125, 1137, 1138, 1249, 1250, 1251, 1252,
1134 1253, 1254, 1350, 1358, 1394, 1438, 1498, 1534
1136 Visit <http://sources.redhat.com/bugzilla/> for the details of each bug.
1138 * As of this release, GCC 4 can be used to compile the C Library.
1140 * Timezone data updated to 2005m version.
1144 * The following bugs are resolved with this release:
1146 284, 592, 602, 626, 633, 640, 650, 661, 671, 681, 693, 700, 710, 719,
1147 722, 723, 725, 726, 727, 728, 729, 730, 731, 732, 733, 734, 735, 736,
1148 737, 738, 739, 740, 741, 742, 743, 744, 745, 765, 767, 768, 769, 776,
1149 777, 787, 821, 822, 823, 825
1151 Visit <http://sources.redhat.com/bugzilla/> for the details of each bug.
1155 * Support for RFC 3678. Real implementations exist only for Linux so far.
1156 Implemented by Ulrich Drepper.
1158 * nscd can now cache entries persistently. Expiring entries are reloaded.
1159 For speedups the cache can be shared in memory with client processes.
1160 Implemented by Ulrich Drepper.
1162 * nscd can now perform SELinux checks.
1163 Implemented by Matthew Rickard <mjricka@epoch.ncsc.mil>.
1165 * getaddrinfo queries are now cached. Canonical name lookup is performed
1167 Implemented by Ulrich Drepper.
1169 * The nothrow function attribute is used when headers are used by gcc when
1170 compiling C code. This can avoid significant amounts of exception
1173 * The malloc functions perform more error checking and are stricter when
1174 it comes to reacting on errors. The default action is to terminate
1175 the process after showing an error message. Implemented by Ulrich Drepper.
1177 * Reverse lookups of IPv6 addresses does not use bit string or .ip6.int
1178 lookups anymore unless explicitly requested. Implemented by Ulrich Drepper.
1180 * Namespaces in ld.so are implemented. DSOs can be loaded in separate
1181 namespaces using the new function dlmopen(). This feature is of course,
1182 like most other dynamic loading functionality, not available in statically
1183 linked applications. Implemented by Ulrich Drepper.
1185 * Low-overhead boundary checking variants of string and some stdio functions
1186 were added. These are to be used in conjunction with a gcc patch by
1187 Jakub Jelinek which adds calls to these functions if possible.
1188 Implemented by Jakub Jelinek and Ulrich Drepper.
1190 * Old code for several operating systems and machine architectures that
1191 have not been in working condition in a long time have been removed from
1192 the main source tree maintained by the GNU C Library's maintainers.
1193 These files are now reside in the separate `ports' source module
1194 that is usable as an add-on when building the library.
1198 * New functions `dladdr1' and `dlinfo' in <dlfcn.h> provide more ways to
1199 interrogate the dynamic linker, compatible with the Solaris interface.
1201 * ELF thread-local storage support (TLS) now works on PowerPC and PowerPC64;
1202 implemented by Paul Mackerras, Steven Munroe, and Roland McGrath.
1204 * getifaddrs now uses the netlink interface on Linux to get its information.
1205 Implemented by Thorsten Kukuk.
1207 * getaddrinfo now implements AI_V4MAPPED, AI_ALL, and AI_ADDRCONF.
1208 Implemented by Ulrich Drepper.
1210 * support for non-executable stacks on x86 has been added. Changes mostly
1213 * regex is now much faster for multibyte locales. Changes by Jakub Jelinek
1216 * getaddrinfo now performs destination address selection according to
1221 * Thread-safe interfaces for many functions that access locale data
1222 were added in version 2.3, but these features were omitted from NEWS.
1223 Many functions have variants with an `_l' suffix that take a `locale_t'
1224 object as a parameter rather than consulting the current locale.
1225 The new functions `newlocale', `duplocale', and `freelocale' in <locale.h>
1226 create and maintain `locale_t' objects. Additionally, the new function
1227 `uselocale' sets "the current locale" (as used by functions not so
1228 parameterized) set for an individual thread. These features were added
1229 in version 2.3, implemented by Ulrich Drepper and Roland McGrath.
1231 * The functions getresuid, getresgid, setresuid, and setresgid, which
1232 have long been available on Linux, are now declared in <unistd.h>
1233 and are now also available on the Hurd.
1235 * ELF thread-local storage support (TLS) now works on x86-64.
1237 * The new dynamic string token $LIB is expanded in shared library names.
1238 This normally expands to lib, but on some 64-bit platforms to lib64 instead.
1240 * Aldy Hernandez contributed complete software floating point support for
1241 PowerPC machines with no FPU.
1243 * fexecve is implemented on Linux.
1245 * The `btowc' function should work at least twice as fast due to
1246 specialized callbacks in the iconv modules. Implemented by Bruno Haible.
1248 * With approriate thread add-ons cancelable functions are now implemented
1249 in libc.so as well. No need to call the function in libpthread. This
1250 change allowed to finally disable the incorrect and expensive handling
1251 of weak definition in ld.so.
1253 * Yet more PLT entries in libc.so have been removed. We finally arrived
1254 at the bare minimum. Startup times improved appropriately.
1256 * Support for the new Linux/x86 system call interface was added. The
1257 AT_SYSINFO auxiliary vector entry is recognized and handled.
1261 * Masahide Washizawa contributed iconv modules for IBM1163 and IBM1164
1264 * iconv (the program and the interface) now accepts empty names (excluding
1265 options like //TRANSLIT) to mean "use charset of current locale".
1267 * localedef can now transliterate characters in strings which are not in
1268 the provided charmap. The information from the input locale is used.
1270 * Prelinking support was added for ELF targets. This requires additional
1271 tools and recent versions of the GNU binutils. Contributed by Jakub Jelinek.
1273 * Read-only stdio streams now use mmap to speed up operation by eliminating
1274 copying and buffer underflows. To use add 'm' to the mode string of
1275 the fopen/fdopen/freopen call. Implemented by Ulrich Drepper.
1277 * The malloc functions were completely rewritten by Wolfram Gloger based
1278 on Doug Lea's malloc-2.7.0.c.
1280 * Isamu Hasegawa contributed a completely new and POSIX-conformant
1281 implementation of regex.
1283 * Bruno Haible upgraded the iconv and locale implementation to support
1286 * Contents of the LC_* and LANG environment variables in the CEN style are
1287 not recognized anymore. It never was used. Change by Ulrich Drepper.
1289 * The runtime (ld.so, libc, libpthread for Linux) now can handle the ELF
1290 thread-local storage (TLS) ABI on some platforms.
1291 Changes by Ulrich Drepper. SH support by Kaz Kojima.
1293 * Bruno Haible contributed iconv converters for ISO-2022-JP-3, SHIFT JIS-X0213,
1294 EUC-JISX0213, and TSCII.
1296 * New header <ifaddrs.h> with functions `getifaddrs' and `freeifaddrs':
1297 BSD-compatible interface for getting all network interface addresses.
1298 Implementation for IPv4 by Roland McGrath.
1300 * Loading of locale data is faster due to the introduction of a locale
1301 archive. Implemented by Roland McGrath and Ulrich Drepper.
1303 * Startup times are significantly reduced by not using exported functions
1304 inside the library itself. Changes by Jakub Jelinek, Roland McGrath,
1307 * Steven Munroe contributed a port to PowerPC64/Linux.
1311 * The Hurd now uses the GNU libio implementation of stdio rather than the
1312 old GNU stdio implementation, and uses a new ABI (libc.so.0.3).
1314 * The Hurd on x86 now has the `ioperm' function and <sys/io.h> header file
1315 with the same behavior as the Linux system call of the same name.
1319 * Stephen Moshier implemented log2, log10, powl and cbrtl for the
1320 128-bit long double format.
1322 * Masahide Washizawa contributed iconv modules for IBM1132, IBM1133, IBM1160,
1323 IBM1161, and IBM1162 charsets.
1325 * Andreas Jaeger contributed a port to x86-64/Linux.
1327 * Peter Bruin contributed a port to PowerPC/Hurd.
1329 * libc functions using I/O streams now can handle wide-oriented streams
1332 * optimizations in the dynamic linker. Binaries created by recent binutils
1333 versions start up quicker due to reduced time spent on relocations.
1335 * Support for use of gcc3 added by Jakub Jelinek and HJ Lu.
1339 * Stephen Moshier implemented cosh, expm1, log1p, acos, sinh, tanh,
1340 asinh, atanh, j0 for the 128-bit long double format.
1342 * Bruno Haible updated all the code handling Unicode in some form to
1343 support Unicode 3.1.
1345 * Speed of regex for single-byte locales is back to previous levels.
1346 Patch by Isamu Hasegawa.
1348 * Alpha, SPARC, and IA-64 now also using floating stacks.
1350 * Startup time of internationalized applications greatly improved through
1351 iconv cache. Use iconvconfig to generate the cache file.
1352 Contributed by Ulrich Drepper.
1354 * The IA-64 specific part of ld.so was rewritten to eliminate some pretty
1355 severe performance problems. Patch by David Mosberger.
1357 * The Hurd port got a lot more functionality like AIO, various stdio
1358 extensions, etc. Mainly done by Roland McGrath.
1360 * mtrace can now lookup symbols in shared libraries.
1364 * Intel's IA-64 math library is largely integrated. It provides fast and
1365 accurate implementatations for most basic and standard math functions
1366 in float, double, and long double format.
1368 * Stephen Moshier implemented j0, j1, jn, y0, y1, yn, lgamma, erf, erfc,
1369 and asin for the 96-bit long double format and asin, log, tan for the
1370 128-bit long double format.
1372 * The beginning of a last-bit accurate math library by IBM Haifa were added.
1373 The basic double functions exist today. Contributed by Abraham Ziv
1374 <ziv@il.ibm.com>, Moshe Olshansky <olshansk@il.ibm.com>, Ealan Henis
1375 <ealan@il.ibm.com>, and Anna Reitman <reitman@il.ibm.com>.
1377 * An asynchronous name lookup library was added. The interface is designed
1378 after POSIX AIO. The proposal was circulated beforehand to get comments.
1379 No negative ones came in. Implemented by Ulrich Drepper.
1381 * Port to S390/64bit contributed by Martin Schwidefsky
1382 <schwidefsky@de.ibm.com>.
1384 * David Mosberger <davidm@hpl.hp.com> implemented the setcontext family
1385 of functions for Linux/IA-64.
1387 * The RPC code is now thread safe. Threads can now use the same service
1388 of different services at the same time. Patch by Eric Norum
1389 <eric.norum@usask.ca> with some help by Ulrich Drepper.
1391 * Martin Schwidefsky <schwidefsky@de.ibm.com> implemented the setcontext
1392 family of functions for Linux/S390.
1394 * Ulrich Drepper <drepper@redhat.com> implemented the setcontext family
1395 of functions for Linux/x86.
1397 * Port to Linux/CRIS contributed by Axis Communications.
1401 * Lots of headers were cleaned up. Using the tool in the conform/ subdir
1402 we can now check for namespace violations and missing declarations. The
1403 result is that almost all headers are now Unix-compliant (as defined in
1404 the upcoming XPG6). The negative side is that some programs might need
1405 corrections, too, if they depend on the incorrect form of the headers in
1406 previous versions which defined too many symbols and included too many
1409 * regex now handles multibyte character sets correctly.
1410 Contributed by Isamu Hasegawa <isamu@yamato.ibm.com>.
1412 * iconv (the program) does now conform to the upcoming XPG6 and handles
1413 charmaps. Instead of the charset names the path of charmaps can be
1414 provided and the conversion happens based on this data.
1415 Contributed by Ulrich Drepper.
1417 * The locale program now provides detailed information about the installed
1422 only lists the names of the supported locales
1426 provides details such as country, language, and codeset name.
1427 Contributed by Ulrich Drepper.
1431 * The gencat program now parses the input file according to the charset
1432 selected by the LC_CTYPE category. This is important for stateful
1433 character sets. To make generating catalogs easier there is a way
1434 to overwrite the charset selected by the locale: before the first
1435 message or $ quote line the catalog can contain a line like
1437 $ codeset=ISO-8859-2
1439 to select the charset (ISO-8859-2 in this case).
1441 Implemented by Shinya Hanataka and Ulrich Drepper.
1443 * New codeset conversion modules: IBM-922 (Estonia PC codeset),
1444 IBM-1124 (Ukraine PC codeset), IBM-1129 (Vietnamese PC codeset).
1445 Contributed by Masahide Washizawa <washi@jp.ibm.com>.
1447 * Optimized string functions for Alpha ev6 and ev67 by Richard Henderson
1448 <rth@redhat.com> and Rick Gorton <rick.gorton@alpha-processor.com>.
1450 * The LANGUAGE environment variable is now ignored unless the locale is
1451 changed from the default "C" locale.
1453 * The usual bug fixes.
1457 * Greg McGary added runtime support for bounds checking using gcc's
1458 new -fbounded-pointers option. ix86 target is complete. PowerPC
1461 * Thorsten Kukuk added secure mode support to nscd.
1463 * The Berkeley db libraries have been removed.
1465 Related, the nss_db module is now in a separate package since it
1466 obviously requires a database library being available.
1468 * Wide character I/O streams implemented by Ulrich Drepper.
1470 * Functions from the extended socket API added by Ulrich Drepper.
1472 * Functions feenableexcept and fedisableexcept to control the
1473 behaviour of individual exceptions have been added by Andreas Jaeger.
1475 * ldconfig program added by Andreas Jaeger and Jakub Jelinek.
1477 * The resolver code has been updated from bind 8.2.3-T5B which supports
1478 threads. The integration was done by Andreas Jaeger, Adam D. Bradley,
1481 This change could in some situations effect backward compatibility. Since
1482 now `_res' is a thread-local instead of a global variable, modifying it
1483 in one thread does not have any effect in other threads.
1485 The resolver library was also extended to allow IPv6 as the transport
1486 protocol for the requests. This work was done by Stig Venaas.
1488 * Compatibility code for K&R C compilers has been removed from the
1489 header files. A ISO C compiler is needed to use the library
1490 (conforming to either C89 or C99 standard).
1492 * Complete rewrite of the localedef program to support multibyte character
1493 sets. Implement handling of ISO 14651 and ISO 14652. Rewrite strcoll,
1494 strxfrm, wcscoll, and wcsxfrm functions. Make isw*() functions work.
1495 Implemented by Ulrich Drepper.
1497 Bruno Haible significantly improved the generation and use of the data
1498 structures for the wide character tables.
1500 * Plural handling in gettext implemented by Ulrich Drepper.
1502 * The utmp daemon has been removed.
1504 * The port to MIPS-Linux has been finished by Andreas Jaeger.
1506 * A port to Hitachi SH3 and SH4 has been contributed by Kazumoto Kojima
1509 * POSIX clocks and timers implemented by Kaz Kylheku and Ulrich Drepper.
1511 * POSIX barriers implemented by Kaz Kylheku.
1513 * POSIX spawn function family implemented by Ulrich Drepper.
1515 * POSIX spinlocks are now available.
1517 * Timed wait functions for mutex, rwlock, and semaphores are implemented.
1519 * the configure option --enable-kernel=X.Y.Z allows to strip out
1520 compatibility for kernel versions before X.Y.Z. This is currently only
1521 implemented for Linux.
1523 * the sockaddr_in6 structure changed. The IPv6 working group added a new
1524 field sin6_scope_id. This means that all programs using IPv6 should be
1525 recompiled. Don't expect binary compatibility with previous glibc
1528 * various conversion modules for IBM character sets contributed by
1531 * IA-64 port by Jes Sorensen and HJ Lu.
1545 * New ISO C 9x function _Exit, imaxabs, and imaxdiv are added.
1547 * New xdr functions are added; some rpc functions are now 64bit clean.
1549 * Fixed a number of bugs and memory leaks (especially in NIS+ code).
1551 * Fixed known incompatibilities with glibc 2.0.
1553 * New functions lock64, strchrnul, rawmemchr, getutmp and getutmpx.
1555 * Optimized a number of functions (especially the ELF dynamic loader).
1557 * Update timezone data files.
1559 * lots of charmaps corrections
1561 * some new locale definitions and charmaps
1566 * Richard Henderson corrected size of struct timeval on Linux/Alpha to
1567 conform to POSIX member type requirements. Symbol versions have been
1568 adjusted as needed within the library, and for direct use by applications,
1569 but there is potential for problems if third-party libraries use
1570 struct timeval as part of their interface. This does not present
1571 a problem for X and other "essential" system libraries.
1573 * An additional locale model to support C++ Standard Library locale
1574 model and probably more was implemented by Ulrich Drepper.
1576 * Eric Youngdale and Ulrich Drepper implemented versioning of objects on
1579 * Miles Bader provided the `argp' function family to support hierachical
1580 command line argument parsing, layered on top of getopt.
1582 * strtod accepts new hexadecimal floating-point format from ISO C 9X.
1584 * printf has two new specifiers %a and %A to print hexadecimal flaoting-point
1587 * scanf recognizes the %a and %A format for scanning floating point numbers.
1589 * the new headers <stdint.h> and <inttypes.h> from ISO C 9X provides
1590 information and interfaces for the available integer types.
1592 * about 130 new math functions were added to implement the ISO C9x math
1595 * the new header <complex.h> contains definitions of the complex math
1596 functions from ISO C 9X.
1598 * the new header <tgmath.h> defines generic macros to use complex or
1599 real valued functions.
1601 * Thorsten Kukuk provided an implementation for NIS+, securelevel 0, 1 and 2.
1603 * Andreas Jaeger provided a test suite for the math library.
1605 * Mark Kettenis implemented the utmpx interface and an utmp daemon.
1607 * Ulrich Drepper added character set conversion functions (iconv).
1609 * Optimized string functions have been added.
1611 * The localedata addon is now part of glibc.
1613 * An implementation of profiling shared libraries was added by Ulrich Drepper.
1615 * Thorsten Kukuk and Ulrich Drepper provided an implementation for a caching
1616 daemon for NSS (nscd).
1618 Missing a better place here are some numbers on improvements. Under
1619 Linux 2.1.125 un-tar-ing the kernel sources takes
1623 using local files 12.19s 6.88s 22.91s
1625 using NIS 13.92s 8.91s 26.34s
1627 using NIS & nscd 10.37s 7.34s 25.30s
1629 using NIS+ 27.57s 30.37s 640.46s
1631 using NIS+ & nscd 10.25s 7.83s 26.51s
1633 using NIS & old nscd [1] 13.83s 8.32s 29.60s
1635 Keep in mind that non-namelookup related operations dominate above times.
1636 It was just a common complain that using NIS+ unpacking the kernel is
1639 [1] The old nscd implementation is not available anymore since it was
1640 distributed with glibc up to version 2.0.98 and thus is now replaced.
1642 * Tim Waugh provided an implementation of the POSIX.2 wordexp function family.
1644 * Mark Kettenis provided a Hesiod NSS module.
1646 * The ELF dynamic loader knows how to process dynamic string tokens ($ORIGIN
1647 and $PLATFORM) in RPATHs and similar strings (Ulrich Drepper).
1649 * rcmd can now handle netgroups (Dick Streefland).
1651 * A port to the ARM was contributed by Phil Blundell, Pat Beirne and Scott
1654 * Support for the IPv6 protocol has been added to the socket API, as per the
1655 latest draft standards.
1657 * Support for Linux 2.2 has been added.
1659 * Interface changes relative to the latest 2.0.x release:
1660 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1661 addseverity NEW: Unix98
1662 alphasort64 NEW: LFS
1663 argp_err_exit_status NEW: argp, GNU ext
1664 argp_error NEW: argp, GNU ext
1665 argp_failure NEW: argp, GNU ext
1666 argp_help NEW: argp, GNU ext
1667 argp_parse NEW: argp, GNU ext
1668 argp_program_bug_address NEW: argp, GNU ext
1669 argp_program_version NEW: argp, GNU ext
1670 argp_program_version_hook NEW: argp, GNU ext
1671 argp_state_help NEW: argp, GNU ext
1672 argp_usage NEW: argp, GNU ext
1673 authdes_create NEW: Secure RPC
1674 authdes_getucred NEW: Secure RPC
1675 authdes_pk_create NEW: Secure RPC
1676 backtrace NEW: GNU ext.
1677 backtrace_symbols NEW: GNU ext.
1678 backtrace_symbols_fd NEW: GNU ext.
1680 cacosf NEW: ISO C 9x
1681 cacosh NEW: ISO C 9x
1682 cacoshf NEW: ISO C 9x
1683 cacoshl NEW: ISO C 9x
1684 cacosl NEW: ISO C 9x
1691 casinf NEW: ISO C 9x
1692 casinh NEW: ISO C 9x
1693 casinhf NEW: ISO C 9x
1694 casinhl NEW: ISO C 9x
1695 casinl NEW: ISO C 9x
1697 catanf NEW: ISO C 9x
1698 catanh NEW: ISO C 9x
1699 catanhf NEW: ISO C 9x
1700 catanhl NEW: ISO C 9x
1701 catanl NEW: ISO C 9x
1702 cbc_crypt NEW: Secure RPC
1706 ccoshf NEW: ISO C 9x
1707 ccoshl NEW: ISO C 9x
1713 cimagf NEW: ISO C 9x
1714 cimagl NEW: ISO C 9x
1715 clearerr_locked REMOVED
1716 clntunix_create NEW: sunrpc ext
1718 clog10 NEW: ISO C 9x
1719 clog10f NEW: ISO C 9x
1720 clog10l NEW: ISO C 9x
1730 cprojf NEW: ISO C 9x
1731 cprojl NEW: ISO C 9x
1733 crealf NEW: ISO C 9x
1734 creall NEW: ISO C 9x
1739 csinhf NEW: ISO C 9x
1740 csinhl NEW: ISO C 9x
1743 csqrtf NEW: ISO C 9x
1744 csqrtl NEW: ISO C 9x
1748 ctanhf NEW: ISO C 9x
1749 ctanhl NEW: ISO C 9x
1751 des_setparity NEW: Secure RPC
1752 ecb_crypt NEW: Secure RPC
1753 endutxent NEW: Unix98
1755 exp10f NEW: ISO C 9x
1756 exp10l NEW: ISO C 9x
1760 fattach NEW: STREAMS
1761 fdetach NEW: STREAMS
1765 feclearexcept NEW: ISO C 9x
1766 fegetenv NEW: ISO C 9x
1767 fegetexceptflag NEW: ISO C 9x
1768 fegetround NEW: ISO C 9x
1769 feholdexcept NEW: ISO C 9x
1771 feraiseexcept NEW: ISO C 9x
1772 ferror_locked REMOVED
1773 fesetenv NEW: ISO C 9x
1774 fesetexceptflag NEW: ISO C 9x
1775 fesetround NEW: ISO C 9x
1776 fetestexcept NEW: ISO C 9x
1777 feupdateenv NEW: ISO C 9x
1778 fflush_locked REMOVED
1782 fgets_unlocked NEW: GNU ext.
1783 fileno_locked REMOVED
1795 fputc_locked REMOVED
1796 fputs_unlocked NEW: GNU ext.
1797 fread_unlocked NEW: GNU ext.
1802 fstatvfs NEW: Unix98
1806 ftruncate64 NEW: LFS
1808 fwrite_unlocked NEW: GNU ext.
1809 gai_strerror NEW: IPv6
1813 getchar_locked REMOVED
1815 getdate_err NEW: Unix98
1816 getdate_r NEW: GNU ext.
1818 getnameinfo NEW: IPv6
1819 getnetname NEW: Secure RPC
1820 getpmsg NEW: STREAMS
1821 getpt NEW: Unix98 PTY
1822 getrlimit64 NEW: LFS
1823 getutxent NEW: Unix98
1824 getutxid NEW: Unix98
1825 getutxline NEW: Unix98
1826 glob64 NEW: GNU ext.
1827 globfree64 NEW: GNU ext.
1828 gnu_get_libc_release NEW: GNU ext.
1829 gnu_get_libc_version NEW: GNU ext.
1830 grantpt NEW: Unix98 PTY
1831 host2netname NEW: Secure RPC
1833 iconv_close NEW: iconv
1834 iconv_open NEW: iconv
1835 if_freenameindex NEW: IPv6
1836 if_indextoname NEW: IPv6
1837 if_nameindex NEW: IPv6
1838 if_nametoindex NEW: IPv6
1839 in6addr_any NEW: IPv6
1840 in6addr_loopback NEW: IPv6
1841 inet6_isipv4mapped NEW: IPv6
1842 isastream NEW: STREAMS
1843 iswblank NEW: GNU ext.
1844 key_decryptsession NEW: Secure RPC
1845 key_decryptsession_pk NEW: Secure RPC
1846 key_encryptsession NEW: Secure RPC
1847 key_encryptsession_pk NEW: Secure RPC
1848 key_gendes NEW: Secure RPC
1849 key_get_conv NEW: Secure RPC
1850 key_secretkey_is_set NEW: Secure RPC
1851 key_setnet NEW: Secure RPC
1852 key_setsecret NEW: Secure RPC
1853 llrint NEW: ISO C 9x
1854 llrintf NEW: ISO C 9x
1855 llrintl NEW: ISO C 9x
1856 llround NEW: ISO C 9x
1857 llroundf NEW: ISO C 9x
1858 llroundl NEW: ISO C 9x
1863 lrintf NEW: ISO C 9x
1864 lrintl NEW: ISO C 9x
1865 lround NEW: ISO C 9x
1866 lroundf NEW: ISO C 9x
1867 lroundl NEW: ISO C 9x
1869 makecontext NEW: Unix98
1870 mempcpy NEW: GNU ext.
1873 modify_ldt NEW: kernel
1877 nearbyint NEW: ISO C 9x
1878 nearbyintf NEW: ISO C 9x
1879 nearbyintl NEW: ISO C 9x
1880 netname2host NEW: Secure RPC
1881 netname2user NEW: Secure RPC
1882 nexttoward NEW: ISO C 9x
1883 nexttowardf NEW: ISO C 9x
1884 nexttowardl NEW: ISO C 9x
1888 passwd2des NEW: Secure RPC
1890 pow10f NEW: GNU ext.
1891 pow10l NEW: GNU ext.
1894 printf_size NEW: GNU ext.
1895 printf_size_info NEW: GNU ext.
1896 profil_counter REMOVED
1897 pthread_mutexattr_getkind_np REPLACED
1898 pthread_mutexattr_setkind_np REPLACED
1899 ptsname NEW: Unix98 PTY
1900 ptsname_r NEW: Unix98 PTY
1902 putchar_locked REMOVED
1903 putgrent NEW: GNU ext.
1905 putpmsg NEW: STREAMS
1906 pututxline NEW: Unix98
1910 readdir64_r NEW: LFS
1911 remquo NEW: ISO C 9x
1912 remquof NEW: ISO C 9x
1913 remquol NEW: ISO C 9x
1915 roundf NEW: ISO C 9x
1916 roundl NEW: ISO C 9x
1918 scalbln NEW: ISO C 9x
1919 scalblnf NEW: ISO C 9x
1920 scalblnl NEW: ISO C 9x
1922 sendfile NEW: kernel
1923 setcontext NEW: Unix98
1924 setrlimit64 NEW: LFS
1925 setutxent NEW: Unix98
1927 sigignore NEW: Unix98
1928 sigqueue NEW: POSIX.1b
1929 sigrelse NEW: Unix98
1930 sigset NEW: POSIX.1b
1931 sigtimedwait NEW: POSIX.1b
1932 sigwaitinfo NEW: POSIX.1b
1933 sincos NEW: GNU ext.
1934 sincosf NEW: GNU ext.
1935 sincosl NEW: GNU ext.
1939 strcasestr NEW: GNU ext.
1940 strtoimax NEW: ISO C 9x
1941 strtoumax NEW: ISO C 9x
1942 strverscmp NEW: GNU ext.
1943 svcauthdes_stats NEW: Secure RPC
1944 svcunix_create NEW: sunrpc etx
1945 svcunixfd_create NEW: sunrpc ext
1946 swapcontext NEW: Unix98
1947 tcgetsid NEW: Unix98 PTY
1948 tdestroy NEW: GNU ext.
1949 tgamma NEW: ISO C 9x
1950 tgammaf NEW: ISO C 9x
1951 tgammal NEW: ISO C 9x
1955 truncf NEW: ISO C 9x
1956 truncl NEW: ISO C 9x
1958 unlockpt NEW: Unix98 PTY
1959 updwtmpx NEW: Unix98
1960 user2netname NEW: Secure RPC
1961 utmpxname NEW: Unix98
1962 versionsort NEW: GNU ext.
1963 versionsort64 NEW: GNU ext.
1965 wcscasecmp NEW: GNU ext.
1966 wcsncasecmp NEW: GNU ext.
1967 wcsnlen NEW: GNU ext.
1968 wcstoimax NEW: ISO C 9x
1969 wcstoll NEW: ISO C 9x
1970 wcstoull NEW: ISO C 9x
1971 wcstoumax NEW: ISO C 9x
1973 wordexp NEW: POSIX.2
1974 wordfree NEW: POSIX.2
1975 write_profiling REMOVED
1976 xdecrypt NEW: Secure RPC
1977 xdr_authdes_cred NEW: Secure RPC
1978 xdr_authdes_verf NEW: Secure RPC
1979 xdr_cryptkeyarg NEW: Secure RPC
1980 xdr_cryptkeyarg2 NEW: Secure RPC
1981 xdr_cryptkeyres NEW: Secure RPC
1982 xdr_getcredres NEW: Secure RPC
1983 xdr_key_netstarg NEW: Secure RPC
1984 xdr_key_netstres NEW: Secure RPC
1985 xdr_keybuf NEW: Secure RPC
1986 xdr_keystatus NEW: Secure RPC
1987 xdr_netnamestr NEW: Secure RPC
1988 xdr_sizeof NEW: Secure RPC
1989 xdr_unixcred NEW: sunrpc ext
1990 xencrypt NEW: Secure RPC
1991 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
2002 * inet_ntoa is thread-safe
2004 * updwtmp is moved from libutil to libc
2006 * rewrite of cbrt function
2008 * update of timezone data
2022 * add atoll function
2024 * fix complex problems in Berkeley DB code
2026 * fix math functions
2030 * fixed lots of header problems (especially Linux/GNU specific)
2032 * dynamic loader preserves all registers
2034 * Roland McGrath provided support for handling of auxiliary objects in
2035 the ELF dynamic loader.
2037 * support for parallel builds is improved
2041 * GNU extensions are no longer declared by default. To enable them you
2042 must define the macro `_GNU_SOURCE' in your program or compile with
2045 * The library has changed from using GNU ld symbol aliases to using weak
2046 symbols where available. The ELF object file format supports weak
2047 symbols; GNU ld also supports weak symbols in the a.out format. (There
2048 is also now support for other GNU ld extensions in ELF. Use the
2049 `--with-elf' option to configure to indicate you have ELF, and
2050 `--with-gnu-ld' if using GNU ld.) This change resulted in the deletion
2051 of many files which contained only symbol aliases, reducing the size of
2052 the source and the compiled library; many other files were renamed to
2053 less cryptic names previously occupied by the symbol alias files.
2054 There is a new header file <elf.h> for programs which operate on
2055 files in the ELF format.
2057 * Converted to Autoconf version 2, so `configure' has more options.
2058 Run `configure --help' to see the details.
2060 * The library can now be configured to build profiling, highly-optimized
2061 (but undebuggable), and/or shared libraries (ELF with GNU ld only). The
2062 `--enable-profile', `--enable-omitfp', and `--enable-shared' options to
2063 `configure' enable building these extra libraries. The shared library is
2064 built by default when using both ELF and GNU ld. When shared libraries
2065 are enabled, the new library `-ldl' is available for arbitrary run-time
2066 loading of shared objects; its interface is defined in <dlfcn.h>. The
2067 new header file <link.h> gives access to the internals of the run-time
2068 dynamic linker, `ld.so'. The shell script `ldd' is similar to the
2069 application of same name on other systems and it provides information
2070 about dynamically linked binaries.
2072 * The C library now provides the run-time support code for profiling
2073 executables compiled with `-pg'. Programs can control the profiling code
2074 through the interface in <sys/gmon.h>. The `gmon.out' files written by
2075 the GNU C library can be read only by GNU `gprof' (from GNU binutils);
2076 the support for this file format was contributed by David Mosberger-Tang.
2078 * The math code has been replaced with a math library based on fdlibm from
2079 Sun, and modified by JT Conklin and Ulrich Drepper with i387 support, by
2080 Ian Taylor with `float' functions and by Ulrich Drepper with `long double'
2081 functions. The math functions now reside in a separate library, so
2082 programs using them will need to use `-lm' their linking commands.
2084 * John C. Bowman contributed optimized ix87 assembler inline functions.
2086 * Ulrich Drepper has contributed support for an `/etc/nsswitch.conf'
2087 mechanism similar to that found in Solaris 2. This is now used for the
2088 group, passwd, hosts, networks, services, protocols, rpc, ethers,
2089 shadow, netgroup, publickey, and alias databases. The `nsswitch.conf'
2090 file controls what services are used for each individual database. This
2091 works by loading shared libraries with names specified in `nsswitch.conf',
2092 so service modules can be changed or added at any time without even
2093 relinking any program. Currently there are the file, db, and NIS based
2094 NSS services available.
2096 * The new functions `strtoq' and `strtouq' parse integer values from
2097 strings, like `strtol' and `strtoul', but they return `long long int' and
2098 `unsigned long long int' values, respectively (64-bit quantities).
2100 * The new functions `strtof' and `strtold' parse floating-point values from
2101 strings, like `strtod', but they return `float' and `long double' values,
2102 respectively (on some machines `double' and `long double' are the same).
2104 * Ulrich Drepper has contributed new implementations of the floating-point
2105 printing and reading code used in the `printf' family of functions and
2106 `strtod', `strtof', and `strtold'. These new functions are perfectly
2107 accurate, and much faster than the old ones.
2109 * The implementation of the POSIX locale model was completely rewritten by
2110 Ulrich Drepper. This includes the new programs `localedef' and `locale'
2111 to compile the POSIX locale definition.
2113 * The former dummy implementations of the strcoll and strxfrm function are
2114 now replaced by fully functional code contributed by Ulrich Drepper. The
2115 collation information comes from the POSIX locale definitions.
2117 * The new header <langinfo.h> defines an interface for accessing
2118 various locale-dependent data (using the locale chosen with `setlocale').
2120 * Ulrich Drepper has contributed a new suite of functions for operation on
2121 wide-character and multibyte-character strings, in <wchar.h>;
2122 and classification and case conversion of wide characters, in <wctype.h>.
2123 These new functions are conforming to the ISO C, Amendement 1 specification.
2125 * There is now a second implementation of the standard I/O library available.
2126 It comes from GNU libg++ as was written by Per Bothner, heavily modified
2127 by Hongjiu Lu and made thread safe by Ulrich Drepper.
2129 * You can now use positional parameter specifications in format strings
2130 for the `printf' and `scanf' families of functions. For example,
2131 `printf ("Number %2$d, Mr %1$s\n", "Jones", 6);'' prints
2132 ``Number 6, Mr Jones''. This is mainly useful when providing different
2133 format strings for different languages, whose grammars may dictate
2134 different orderings of the values being printed. To support this
2135 feature, the interface for `register_printf_handler' has changed; see
2136 the header file <printf.h> for details.
2138 * The `printf' and `scanf' families of functions now understand a new
2139 formatting flag for numeric conversions: the ' flag (e.g. %'d or %'f) says
2140 to group numbers as indicated by the locale; for `scanf' and friends, this
2141 says to accept as valid only a number with all the proper grouping
2142 separators in the right places. In the default "C" locale, numbers are
2143 not grouped; but locales for specific countries will define the usual
2144 conventions (i.e. separate thousands with `,' in the US locale).
2146 * The pgrp functions have been regularized, slightly incompatibly but much
2147 less confusingly. The core functions are now `getpgid' and `setpgid',
2148 which take arguments for the PID to operate on; the POSIX.1 `getpgrp' (no
2149 argument) and BSD `setpgrp' (identical to `setpgid') functions are
2150 provided for compatibility. There is no longer an incompatible `getpgrp'
2151 with an argument declared under _BSD_SOURCE; no BSD code uses it.
2153 * The new header file <fts.h> and suite of functions simplify programs that
2154 operate on directory trees. This code comes from 4.4 BSD.
2156 * The resolver code has been updated from the BIND 4.9.5-P1 release.
2157 Parts of the code were heavily modified by Ulrich Drepper to fit in the
2158 NSS scheme used in glibc.
2160 * There is a new malloc debugging hook `__memalign_hook'.
2162 * There are new typedefs `ushort' for `unsigned short int' and `uint' for
2163 `unsigned int' in <sys/types.h>. These are for compatibility only and
2164 their use is discouraged.
2166 * The `-lmcheck' library to enable standard malloc debugging hooks is now
2167 done differently, so that it works even without GNU ld.
2169 * New function `euidaccess' checks allowed access to a file like `access',
2170 but using the effective IDs instead of the real IDs.
2172 * The time zone data files have been updated for the latest and greatest
2173 local time conventions of the countries of the world.
2175 * The new function `dirfd' extracts the file descriptor used by a DIR stream;
2178 * The new functions `ecvt', `fcvt', and `gcvt' provide an obsolete interface
2179 for formatting floating-point numbers. They are provided only for
2180 compatibility; new programs should use `sprintf' instead. There are
2181 also equivalent function for the `long double' floating-point type and
2182 all functions also exist in a reentrant form.
2184 * The new auxiliary library `-lutil' from 4.4 BSD contains various
2185 functions for maintaining the login-record files (primarily of use to
2186 system programs such as `login'), and convenient functions for
2187 allocating and initializing a pseudo-terminal (pty) device.
2189 * Ulrich Drepper has contributed new support for System V style
2190 shared memory and IPC on systems that support it.
2192 * Ulrich Drepper has contributed several miscellaneous new functions found
2193 in System V: The `hsearch' family of functions provide an effective
2194 implementation of hash tables; `a64l' and `l64a' provide a very simple
2195 binary to ASCII mapping; `drand48' and friends provide a 48-bit random
2198 * Ulrich Drepper has contributed new reentrant counterparts for the
2199 `random' and `hsearch' families of functions; `random_r', `hsearch_r', etc.
2201 * Ulrich Drepper has contributed new, highly-optimized versions of several
2202 string functions for the i486/Pentium family of processors.
2204 * Ulrich Drepper has updated the Linux-specific code, based largely
2205 on work done in Hongjiu Lu's version of GNU libc for Linux.
2206 The GNU library now supports Linux versions 2.0.10 and later,
2207 using the ELF object file format (i[3456]86-*-linux).
2209 * Andreas Schwab has ported the C library to Linux/m68k (m68k-*-linux).
2211 * David Mosberger-Tang and Richard Henderson have ported the C library
2212 to Linux/Alpha (alpha-*-linux). Richard Henderson contributed the
2213 dynamic linking support for ELF/Alpha.
2215 * Richard Henderson contributed several Alpha optimized assembler function
2216 for arithmetic and string handling.
2218 * Ulrich Drepper has contributed a new set of message catalog functions to
2219 support multiple languages using the <libintl.h> interface, for use with
2220 his new package GNU gettext. Translation volunteers have contributed
2221 catalogs of the library's messages in Spanish, German, and Korean.
2223 * For compatibility with XPG4, Ulrich Drepper has contributed the `gencat'
2224 program and the `catgets' function for reading the catalog files it
2225 creates. (The <libintl.h> interface is preferred; we include the
2226 <nl_types.h> interface using `catgets' only for source compatibility with
2227 programs already written to use it.)
2229 * New header file <values.h> gives SVID-compatible names for <limits.h>
2232 * Various new macros, declarations, and small header files for compatibility
2235 * New function `group_member' is a convenient way to check if a process has
2236 a given effective group ID.
2238 * When using GCC 2.7 and later, the socket functions are now declared in a
2239 special way so that passing an argument of type `struct sockaddr_in *',
2240 `struct sockaddr_ns *', or `struct sockaddr_un *' instead of the generic
2241 `struct sockaddr *' type, does not generate a type-clash warning.
2243 * New function `error' declared in header file <error.h> is a convenient
2244 function for printing error messages and optionally exiting; this is the
2245 canonical function used in GNU programs. The new functions `err', `warn',
2246 and friends in header file <err.h> are the canonical 4.4 BSD interface for
2247 doing the same thing.
2249 * The <glob.h> interface has several new flags from 4.4 BSD that extend the
2250 POSIX.2 `glob' function to do ~ and {...} expansion.
2252 * New function `unsetenv' complements `setenv' for compatibility with 4.4 BSD.
2253 `clearenv' which is used in POSIX.9 is also available.
2255 * New function `getsid' returns session ID number on systems that support it.
2257 * We have incorporated the 4.4 BSD `db' library (version 1.85). New header
2258 files <db.h> and <mpool.h> provide a rich set of functions for several
2259 types of simple databases stored in memory and in files, and <ndbm.h> is
2260 an old `ndbm'-compatible interface using the `db' functions. Link with
2261 `-ldb' to get these functions.
2263 * New macro `strdupa' copies a string like `strdup', but uses local stack
2264 space from `alloca' instead of dynamic heap space from `malloc'.
2266 * New function `strnlen' is like `strlen' but searches only a given maximum
2267 number of characters for the null terminator. `stpncpy', `strndup' and
2268 `strndupa' are similar variants for the `stpcpy', `strdup' and `strdupa'
2271 * New function `statfs' in header <sys/statfs.h>.
2273 * The new <argz.h> and <envz.h> interfaces contributed by Miles Bader
2274 provide convenient functions for operating on blocks of null-terminated
2277 * A new suite of functions in <utmp.h> handle all the details of reading
2278 and writing the utmp file.
2280 * An implementation of the NIS/YP(tm) based NSS service was contributed by
2283 * Paul Eggert and Ulrich Drepper modified the `strftime' function to be
2284 completely POSIX compliant and also implemented the extended functionality
2285 to handle alternate digit representation and alternate era date formats.
2287 * Ulrich Drepper provided an implementation of the `strptime' function
2288 defined in XPG4.2 which transforms a string into a `struct tm' value.
2290 * Paul Eggert provided the tzselect shell script as part of the timezone
2291 code. The shell script makes it easy to select the correct timezone
2294 * The implementation of the malloc family of functions is completely replaced
2295 by a new implementation by Doug Lea with many improvements by Wolfram Gloger.
2296 The implementation uses the mmap function (if available) and it is
2297 optimized for the use in multi threaded programs.
2299 * Ulrich Drepper contributed a MD5 "encryption" for the crypt family of
2300 functions. This new functionality is usable by specifying a special
2301 salt string and it is compatible with implementation on *BSD systems.
2303 * Lots of functions from the XPG4.2 standard were added by Ulrich Drepper:
2304 `getsubopt' to handle second level command line options, `bsd_signal'
2305 to access BSD style `signal' functionality, the obsolete `regexp' style
2308 * the `lchown' function is available on system which support this
2311 * The implementation of the shadow password handling function was contributed
2314 * David Mosberger-Tang changed the SunRPC implementation to be 64bit safe.
2316 * POSIX.1g support was added. The <sys/select.h> header is available,
2317 `isfdtype' and `pselect' are implemented. Craig Metz contributed an
2318 implementation of `getaddrinfo'.
2322 * For cross-compilation you should now set `BUILD_CC' instead of `HOST_CC'.
2324 * New header file <fstab.h> and new functions `getfsspec', `getfsent' and
2325 friends, for parsing /etc/fstab. This code comes from 4.4 BSD.
2327 * The new function `daemon' from 4.4 BSD is useful for server programs that
2328 want to put themselves in the background.
2330 * Joel Sherrill has contributed support for several standalone boards that
2331 run without an operating system.
2333 * `printf', `scanf' and friends now accept a `q' type modifier for long
2334 long int as well as `ll'. Formats using these might be `%qu' or `%lld'.
2336 * All of the code taken from BSD (notably most of the math and networking
2337 routines) has been updated from the BSD 4.4-Lite release.
2339 * The resolver code has been updated from the BIND-4.9.3-BETA9 release.
2341 * The new functions `getdomainname' and `setdomainname' fetch or change the
2342 YP/NIS domain name. These are system calls which exist on systems which
2345 * The time zone data files have been updated for the latest international
2348 * The SunRPC programs `portmap' and `rpcinfo' are now installed in
2349 $(sbindir) (usually /usr/local/sbin) instead of $(bindir).
2353 * The C library now includes support for Sun RPC, from Sun's free
2354 RPCSRC-4.0 distribution. The `portmap', `rpcinfo', and `rpcgen' programs
2355 are included. (There is still no support for YP.)
2357 * Tom Quinn has contributed a port of the C library to SGI machines running
2358 Irix 4 (mips-sgi-irix4).
2360 * The new `lockf' function is a simplified interface to the locking
2361 facilities of `fcntl', included for compatibility.
2363 * New time functions `timegm', `timelocal', and `dysize' for compatibility.
2365 * New header file <sys/timeb.h> and new function `ftime' for compatibility.
2367 * New header files <poll.h> and <sys/poll.h> and new function `poll' for
2370 * The error message printed by `assert' for a failed assertion now includes
2371 the name of the program (if using GNU ld) and the name of the calling
2372 function (with versions of GCC that support this).
2374 * The `psignal' function is now declared in <signal.h>, not <stdio.h>.
2376 * The library now includes the <sys/mman.h> header file and memory
2377 management functions `mmap', `munmap', `mprotect', `msync', and
2378 `madvise', on systems that support those facilities.
2380 * The interface for `mcheck' has changed slightly: the function called to
2381 abort the program when an allocation inconsistency is detected now takes
2382 an argument that indicates the type of failure. The new function
2383 `mprobe' lets you request a consistency check for a particular block at
2384 any time (checks are normally done only when you call `free' or `realloc'
2387 * It is now possible to easily cross-compile the C library, building on one
2388 system a library to run on another machine and/or operating system. All
2389 you need to do is set the variable `HOST_CC' in `configparms' to the
2390 native compiler for programs to run on the machine you are building on (a
2391 few generator programs are used on Unix systems); set `CC' to the
2394 * The new function `fexecve' (only implemented on the GNU system) executes
2395 a program file given a file descriptor already open on the file.
2399 * Brendan Kehoe has contributed most of a port to the DEC Alpha
2400 running OSF/1 (alpha-dec-osf1). He says it is 75% complete.
2402 * You can set the variable `libprefix' in `configparms' to specify a prefix
2403 to be prepended to installed library files; this makes it easy to install
2404 the GNU C library to be linked as `-lgnuc' or whatever.
2406 * The new `stpncpy' is a cross between `stpcpy' and `strncpy': It
2407 copies a limited number of characters from a string, and returns the
2408 address of the last character written.
2410 * You no longer need to check for whether the installed `stddef.h' is
2411 compatible with the GNU C library. configure now checks for you.
2413 * You can now define a per-stream `fileno' function to convert the
2414 stream's cookie into an integral file descriptor.
2416 * ``malloc (0)'' no longer returns a null pointer. Instead, it
2417 allocates zero bytes of storage, and returns a unique pointer which
2418 you can pass to `realloc' or `free'. The behavior is undefined if
2419 you dereference this pointer.
2421 * The C library now runs on Sony NEWS m68k machines running either
2422 NewsOS 3 or NewsOS 4.
2424 * The new `syscall' function is a system-dependent primitive function
2425 for invoking system calls. It has the canonical behavior on Unix
2426 systems, including unreliable return values for some calls (such as
2427 `pipe', `fork' and `getppid').
2429 * The error code `EWOULDBLOCK' is now obsolete; it is always defined
2430 to `EAGAIN', which is the preferred name. On systems whose kernels
2431 use two distinct codes, the C library now translates EWOULDBLOCK to
2432 EAGAIN in every system call function.
2436 * The GNU C Library Reference Manual is now distributed with the library.
2437 `make dvi' will produce a DVI file of the printed manual.
2438 `make info' will produce Info files that you can read on line using C-h i
2439 in Emacs or the `info' program.
2440 Please send comments on the manual to bug-glibc-manual@gnu.org.
2442 * The library now supports SVR4 on i386s (i386-unknown-sysv4).
2444 * Brendan Kehoe has contributed a port to Sun SPARCs running Solaris 2.
2446 * Jason Merrill has contributed a port to the Sequent Symmetry running
2447 Dynix version 3 (i386-sequent-dynix).
2449 * The library has been ported to i386s running SCO 3.2.4 (also known as SCO
2450 ODT 2.0; i386-unknown-sco3.2.4) or SCO 3.2 (i386-unknown-sco3.2).
2452 * New function `memory_warnings' lets you arrange to get warnings when
2453 malloc is running out of memory to allocate, like Emacs gives you.
2455 * The C library now contains the relocating allocator used in Emacs 19 for
2456 its editing buffers. This allocator (ralloc) minimizes allocation
2457 overhead and fragmentation by moving allocated regions around whenever it
2458 needs to. You always refer to a ralloc'd region with a "handle" (a
2459 pointer to a pointer--an object of type `void **').
2461 * There is a new `printf' format: `%m' gives you the string corresponding
2462 to the error code in `errno'.
2464 * In `scanf' formats, you can now use `%as' or `%a[' to do the normal `%s'
2465 or `%[' conversion, but instead of filling in a fixed-sized buffer you
2466 pass, the `a' modifier says to fill in a `char **' you pass with a
2469 * The `fnmatch' function supports the new flag bits `FNM_LEADING_DIR' and
2470 `FNM_CASEFOLD'. `FNM_LEADING_DIR' lets a pattern like `foo*' match a
2471 name like `foo/bar'. `FNM_CASEFOLD' says to ignore case in matching.
2473 * `mkstemp' is a traditional Unix function to atomically create and open a
2474 uniquely-named temporary file.
2478 * The standard location for the file that says what the local timezone is
2479 has changed again. It is now `/usr/local/etc/localtime' (or more
2480 precisely, `${prefix}/etc/localtime') rather than `/etc/localtime'.
2482 * The distribution no longer contains any files with names longer than 14
2485 * `struct ttyent' has two new flag bits: TTY_TRUSTED and TTY_CONSOLE.
2486 These are set by the new `trusted' and `console' keywords in `/etc/ttys'.
2488 * New functions `ttyslot' and `syslog' from 4.4 BSD.
2492 * The configuration process has changed quite a bit. The `configure'
2493 script is now used just like the configuration scripts for other GNU
2494 packages. The `sysdeps' directory hierarchy is much rearranged.
2495 The file `INSTALL' explains the new scheme in detail.
2497 * The header files no longer need to be processed into ANSI C and
2498 traditional C versions. There is just one set of files to install, and
2499 it will work with ANSI or old C compilers (including `gcc -traditional').
2501 * Brendan Kehoe and Ian Lance Taylor have ported the library to the
2502 MIPS DECStation running Ultrix 4.
2504 * The Sun 4 startup code (crt0) can now properly load SunOS 4 shared libraries.
2505 Tom Quinn contributed the initial code. The GNU C library can NOT yet be
2506 made itself into a shared library.
2508 * Yet further improved support for the i386, running 4.3 BSD-like systems
2509 (such as Mach 3 with the Unix single-server), or System V.
2511 * New function `strncasecmp' to do case-insensitive string comparison
2512 with limited length.
2514 * New function `strsep' is a reentrant alternative to `strtok'.
2516 * New functions `scandir' and `alphasort' for searching directories.
2518 * New function `setenv' is a better interface to `putenv'.
2520 * Ian Lance Taylor has contributed an implementation of the SVID `ftw'
2521 function for traversing a directory tree.
2523 * The GNU obstack package is now also part of the C library.
2524 The new function `open_obstack_stream' creates a stdio stream that
2525 writes onto an obstack; `obstack_printf' and `obstack_vprintf' do
2526 formatted output directly to an obstack.
2528 * Miscellaneous new functions: reboot, nice, sigaltstack (4.4 BSD only),
2529 cfmakeraw, getusershell, getpass, swab, getttyent, seteuid, setegid.
2531 * `FNM_FILE_NAME' is another name for `FNM_PATHNAME', used with `fnmatch'.
2533 * The new functions `strfry' and `memfrob' do mysterious and wonderful
2534 things to your strings.
2536 * There are some new test programs: test-fseek, testmb, and testrand.
2538 * Some work has been done to begin porting the library to 4.4 BSD and Linux.
2539 These ports are not finished, but are a good starting place for really
2540 supporting those systems.
2542 * `/etc/localtime' is now the standard location for the file that says what
2543 the local timezone is, rather than `/usr/local/lib/zoneinfo/localtime'.
2544 This follows the general principle that `/etc' is the place for all local
2545 configuration files.
2547 * The C library header files now use `extern "C"' when used by the C++
2548 compiler, so the C library should now work with C++ code.
2550 * The header file <bstring.h> is gone. <string.h> now declares bcopy,
2551 bcmp, bzero, and ffs. (Update: nowadays these functions are declared
2554 * Mike Haertel (of GNU e?grep and malloc fame) has written a new sorting
2555 function which uses the `merge sort' algorithm, and is said to be
2556 significantly faster than the old GNU `qsort' function. Merge sort is
2557 now the standard `qsort' function. The new algorithm can require a lot
2558 of temporary storage; so, the old sorting function is called when the
2559 required storage is not available.
2561 * The C library now includes Michael Glad's Ultra Fast Crypt, which
2562 provides the Unix `crypt' function, plus some other entry points.
2564 * The code and header files taken from 4.4 BSD have been updated with the
2565 latest files released from Berkeley.
2567 ----------------------------------------------------------------------
2568 Copyright information:
2570 Copyright (C) 1992-2015 Free Software Foundation, Inc.
2572 Permission is granted to anyone to make or distribute verbatim copies
2573 of this document as received, in any medium, provided that the
2574 copyright notice and this permission notice are preserved,
2575 thus giving the recipient permission to redistribute in turn.
2577 Permission is granted to distribute modified versions
2578 of this document, or of portions of it,
2579 under the above conditions, provided also that they
2580 carry prominent notices stating who last changed them.
2583 version-control: never
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