1 GNU C Library NEWS -- history of user-visible changes.
2 Copyright (C) 1992-2014 Free Software Foundation, Inc.
3 See the end for copying conditions.
5 Please send GNU C library bug reports via <http://sourceware.org/bugzilla/>
6 using `glibc' in the "product" field.
10 * The following bugs are resolved with this release:
12 6652, 10672, 12847, 12926, 13862, 14132, 14138, 14171, 14498, 15215,
13 15884, 16469, 16617, 16619, 16657, 16740, 16857, 17192, 17266, 17344,
14 17363, 17370, 17371, 17411, 17460, 17475, 17485, 17501, 17506, 17508,
15 17522, 17555, 17570, 17571, 17572, 17573, 17574, 17581, 17582, 17583,
16 17584, 17585, 17589, 17594, 17601, 17608, 17616, 17625, 17630, 17633,
17 17634, 17647, 17653, 17657, 17664, 17665, 17668, 17682, 17717, 17719,
18 17722, 17724, 17725, 17733, 17744, 17745.
20 * CVE-2104-7817 The wordexp function could ignore the WRDE_NOCMD flag
21 under certain input conditions resulting in the execution of a shell for
22 command substitution when the applicaiton did not request it. The
23 implementation now checks WRDE_NOCMD immediately before executing the
24 shell and returns the error WRDE_CMDSUB as expected.
26 * CVE-2012-3406 printf-style functions could run into a stack overflow when
27 processing format strings with a large number of format specifiers.
29 * CVE-2014-9402 The nss_dns implementation of getnetbyname could run into an
30 infinite loop if the DNS response contained a PTR record of an unexpected
33 * The minimum GCC version that can be used to build this version of the GNU
34 C Library is GCC 4.6. Older GCC versions, and non-GNU compilers, can
35 still be used to compile programs using the GNU C Library.
37 * The GNU C Library is now built with -Werror by default. This can be
38 disabled by configuring with --disable-werror.
40 * New locales: tu_IN, bh_IN, raj_IN, ce_RU.
42 * The obsolete sigvec function has been removed. This was the original
43 4.2BSD interface that inspired the POSIX.1 sigaction interface, which
44 programs have been using instead for about 25 years. Of course, ABI
45 compatibility for old binaries using sigvec remains intact.
47 * Merged gettext 0.19.3 into the intl subdirectory. This fixes building
48 with newer versions of bison.
52 * The following bugs are resolved with this release:
54 6804, 9894, 12994, 13347, 13651, 14308, 14770, 15119, 15132, 15347, 15514,
55 15698, 15804, 15894, 15946, 16002, 16064, 16095, 16194, 16198, 16275,
56 16284, 16287, 16315, 16348, 16349, 16354, 16357, 16362, 16447, 16516,
57 16532, 16539, 16545, 16561, 16562, 16564, 16574, 16599, 16600, 16609,
58 16610, 16611, 16613, 16619, 16623, 16629, 16632, 16634, 16639, 16642,
59 16648, 16649, 16670, 16674, 16677, 16680, 16681, 16683, 16689, 16695,
60 16701, 16706, 16707, 16712, 16713, 16714, 16724, 16731, 16739, 16740,
61 16743, 16754, 16758, 16759, 16760, 16770, 16786, 16789, 16791, 16796,
62 16799, 16800, 16815, 16823, 16824, 16831, 16838, 16839, 16849, 16854,
63 16876, 16877, 16878, 16882, 16885, 16888, 16890, 16892, 16912, 16915,
64 16916, 16917, 16918, 16922, 16927, 16928, 16932, 16943, 16958, 16965,
65 16966, 16967, 16977, 16978, 16984, 16990, 16996, 17009, 17022, 17031,
66 17042, 17048, 17050, 17058, 17061, 17062, 17069, 17075, 17078, 17079,
67 17084, 17086, 17088, 17092, 17097, 17125, 17135, 17137, 17150, 17153,
68 17187, 17213, 17259, 17261, 17262, 17263, 17319, 17325, 17354.
70 * Optimized strchrnul implementation for AArch64. Contributed by ARM Ltd.
72 * Reverted change of ABI data structures for s390 and s390x:
73 On s390 and s390x the size of struct ucontext and jmp_buf was increased in
74 2.19. This change is reverted in 2.20. The introduced 2.19 symbol versions
75 of getcontext, setjmp, _setjmp, __sigsetjmp, longjmp, _longjmp, siglongjmp
76 are preserved pointing straight to the same implementation as the old ones.
77 Given that, new callers will simply provide a too-big buffer to these
78 functions. Any applications/libraries out there that embed jmp_buf or
79 ucontext_t in an ABI-relevant data structure that have already been rebuilt
80 against 2.19 headers will have to rebuilt again. This is necessary in any
81 case to revert the breakage in their ABI caused by the glibc change.
83 * Support for file description locks is added to systems running the
84 Linux kernel. The standard file locking interfaces are extended to
85 operate on file descriptions, not file descriptors, via the use of
86 F_OFD_GETLK, F_OFD_SETLK, and F_OFD_SETLKW. File description locks
87 are associated with an open file instead of a process.
89 * Optimized strchr implementation for AArch64. Contributed by ARM Ltd.
91 * The minimum Linux kernel version that this version of the GNU C Library
92 can be used with is 2.6.32.
94 * Running the testsuite no longer terminates as soon as a test fails.
95 Instead, a file tests.sum (xtests.sum from "make xcheck") is generated,
96 with PASS or FAIL lines for individual tests. A summary of the results is
97 printed, including a list of failing lists, and "make check" exits with
98 error status if there were any unexpected failures. "make check
99 stop-on-test-failure=y" may be used to keep the old behavior.
101 * The am33 port, which had not worked for several years, has been removed
104 * The _BSD_SOURCE and _SVID_SOURCE feature test macros are no longer
105 supported; they now act the same as _DEFAULT_SOURCE (but generate a
106 warning). Except for cases where _BSD_SOURCE enabled BSD interfaces that
107 conflicted with POSIX (support for which was removed in 2.19), the
108 interfaces those macros enabled remain available when compiling with
109 _GNU_SOURCE defined, with _DEFAULT_SOURCE defined, or without any feature
112 * Optimized strcmp implementation for ARMv7. Contributed by ARM Ltd.
114 * Added support for TX lock elision of pthread mutexes on s390 and s390x.
115 This may improve lock scaling of existing programs on TX capable systems.
116 The lock elision code is only built with --enable-lock-elision=yes and
117 then requires a GCC version supporting the TX builtins. With lock elision
118 default mutexes are elided via __builtin_tbegin, if the cpu supports
119 transactions. By default lock elision is not enabled and the elision code
122 * CVE-2014-4043 The posix_spawn_file_actions_addopen implementation did not
123 copy the path argument. This allowed programs to cause posix_spawn to
124 deference a dangling pointer, or use an unexpected pathname argument if
125 the string was modified after the posix_spawn_file_actions_addopen
128 * All supported architectures now use the main glibc sysdeps directory
129 instead of some being in a separate "ports" directory (which was
130 distributed separately before glibc 2.17).
132 * The NPTL implementation of POSIX pthreads is no longer an "add-on".
133 On configurations that support it (all Linux configurations), it's now
134 used regardless of the --enable-add-ons switch to configure. It is no
135 longer possible to build such configurations without pthreads support.
137 * Locale names, including those obtained from environment variables (LANG
138 and the LC_* variables), are more tightly checked for proper syntax.
139 setlocale will now fail (with EINVAL) for locale names that are overly
140 long, contain slashes without starting with a slash, or contain ".." path
141 components. (CVE-2014-0475) Previously, some valid locale names were
142 silently replaced with the "C" locale when running in AT_SECURE mode
143 (e.g., in a SUID program). This is no longer necessary because of the
146 * On x86-64, the dynamic linker's lazy-binding support is now compatible
147 with application code using Intel MPX instructions. (With all previous
148 versions, the MPX register state could be clobbered when making calls
149 into or out of a shared library.) Note that while the new dynamic
150 linker is compatible with all known x86 hardware whether or not it
151 supports Intel MPX, some x86 instruction-set emulators might fail to
152 handle the new instruction encodings. This is known to affect Valgrind
153 versions up through 3.9 (but will be fixed in the forthcoming 3.10
154 release), and might affect other tools that do instruction emulation.
156 * Support for loadable gconv transliteration modules has been removed.
157 The support for transliteration modules has been non-functional for
158 over a decade, and the removal is prompted by security defects. The
159 normal gconv conversion modules are still supported. Transliteration
160 with //TRANSLIT is still possible, and the //IGNORE specifier
161 continues to be supported. (CVE-2014-5119)
163 * Decoding a crafted input sequence in the character sets IBM933, IBM935,
164 IBM937, IBM939, IBM1364 could result in an out-of-bounds array read,
165 resulting a denial-of-service security vulnerability in applications which
166 use functions related to iconv. (CVE-2014-6040)
170 * The following bugs are resolved with this release:
172 156, 387, 431, 762, 832, 926, 2801, 4772, 6786, 6787, 6807, 6810, 6981,
173 7003, 9721, 9954, 10253, 10278, 11087, 11157, 11214, 12100, 12486, 12751,
174 12986, 13028, 13982, 13985, 14029, 14032, 14120, 14143, 14155, 14286,
175 14547, 14699, 14752, 14782, 14876, 14910, 15004, 15048, 15073, 15089,
176 15128, 15218, 15268, 15277, 15308, 15362, 15374, 15400, 15425, 15427,
177 15483, 15522, 15531, 15532, 15593, 15601, 15608, 15609, 15610, 15632,
178 15640, 15670, 15672, 15680, 15681, 15723, 15734, 15735, 15736, 15748,
179 15749, 15754, 15760, 15763, 15764, 15797, 15799, 15825, 15843, 15844,
180 15846, 15847, 15849, 15850, 15855, 15856, 15857, 15859, 15867, 15886,
181 15887, 15890, 15892, 15893, 15895, 15897, 15901, 15905, 15909, 15915,
182 15917, 15919, 15921, 15923, 15939, 15941, 15948, 15963, 15966, 15968,
183 15985, 15988, 15997, 16032, 16034, 16036, 16037, 16038, 16041, 16046,
184 16055, 16071, 16072, 16074, 16077, 16078, 16103, 16112, 16143, 16144,
185 16146, 16150, 16151, 16153, 16167, 16169, 16172, 16195, 16214, 16245,
186 16271, 16274, 16283, 16289, 16293, 16314, 16316, 16330, 16337, 16338,
187 16356, 16365, 16366, 16369, 16372, 16375, 16379, 16381, 16384, 16385,
188 16386, 16387, 16390, 16394, 16398, 16400, 16407, 16408, 16414, 16430,
189 16431, 16453, 16474, 16506, 16510, 16529
191 * Slovenian translations for glibc messages have been contributed by the
192 Translation Project's Slovenian team of translators.
194 * The public headers no longer use __unused nor __block. This change is to
195 support compiling programs that are derived from BSD sources and use
196 __unused internally, and to support compiling with Clang's -fblock
197 extension which uses __block.
199 * CVE-2012-4412 The strcoll implementation caches indices and rules for
200 large collation sequences to optimize multiple passes. This cache
201 computation may overflow for large collation sequences and may cause a
202 stack or buffer overflow. This is now fixed to use a slower algorithm
203 which does not use a cache if there is an integer overflow.
205 * CVE-2012-4424 The strcoll implementation uses malloc to cache indices and
206 rules for large collation sequences to optimize multiple passes and falls
207 back to alloca if malloc fails, resulting in a possible stack overflow.
208 The implementation now falls back to an uncached collation sequence lookup
211 * CVE-2013-4788 The pointer guard used for pointer mangling was not
212 initialized for static applications resulting in the security feature
213 being disabled. The pointer guard is now correctly initialized to a
214 random value for static applications. Existing static applications need
215 to be recompiled to take advantage of the fix (bug 15754).
217 * CVE-2013-4237 The readdir_r function could write more than NAME_MAX bytes
218 to the d_name member of struct dirent, or omit the terminating NUL
219 character. (Bugzilla #14699).
221 * CVE-2013-4332 The pvalloc, valloc, memalign, posix_memalign and
222 aligned_alloc functions could allocate too few bytes or corrupt the
223 heap when passed very large allocation size values (Bugzilla #15855,
226 * CVE-2013-4458 Stack overflow in getaddrinfo with large number of results
227 for AF_INET6 has been fixed (Bugzilla #16072).
229 * New locales: ak_GH, anp_IN, ar_SS, cmn_TW, hak_TW, lzh_TW, nan_TW, pap_AW,
230 pap_CW, quz_PE, the_NP.
232 * Substantially revised locales: gd_GB, ht_HT
234 * The LC_ADDRESS field was updated to support country_car for almost all
237 * ISO 1427 definitions were updated.
239 * ISO 3166 definitions were updated.
241 * The localedef utility now supports --big-endian and --little-endian
242 command-line options to generate locales for a different system from that
243 for which the C library was built.
245 * Binary locale files now only depend on the endianness of the system for
246 which they are generated and not on other properties of that system. As a
247 consequence, binary files generated with new localedef may be incompatible
248 with old versions of the GNU C Library, and binary files generated with
249 old localedef may be incompatible with this version of the GNU C Library,
250 in the following circumstances:
252 + Locale files may be incompatible on m68k systems.
254 + Locale archive files (but not separate files for individual locales) may
255 be incompatible on systems where plain "char" is signed.
257 * The configure option --disable-versioning has been removed. Builds with
258 --disable-versioning had not worked for several years.
260 * ISO 639 definitions were updated for Chiga (cgg) and Chinese (gan, hak, czh,
261 cjy, lzh, cmn, mnp, cdo, czo, cpx, wuu, hsn, yue).
263 * SystemTap probes for malloc have been introduced.
265 * SystemTap probes for slow multiple precision fallback paths of
266 transcendental functions have been introduced.
268 * Support for powerpc64le has been added.
270 * The soft-float powerpc port now supports e500 processors.
272 * Support for STT_GNU_IFUNC symbols added for ppc32/power4+ and ppc64.
274 * A new feature test macro _DEFAULT_SOURCE is available to enable the same
275 set of header declarations that are enabled by default, even when other
276 feature test macros or compiler options such as -std=c99 would otherwise
277 disable some of those declarations.
279 * The _BSD_SOURCE feature test macro no longer enables BSD interfaces that
280 conflict with POSIX. The libbsd-compat library (which was a dummy library
281 that did nothing) has also been removed.
283 * Preliminary documentation about Multi-Thread, Async-Signal and
284 Async-Cancel Safety has been added.
286 * Change of ABI data structures for s390 and s390x:
287 On s390 and s390x the size of struct ucontext and jmp_buf was increased to
288 allow for future hardware extensions. All library functions that accept or
289 return these structures were versioned in order to provide backwards
290 compatibility with existing code. However, not all cases can be handled
291 with interface versioning. If an application embeds either structure into
292 another structure and that structure is passed to another compilation unit
293 which expects the newer larger-sized object then any access to the new
294 fields will result in undefined behaviour. Similarly any access to fields
295 that were moved by the enlarging of the structures will cause undefined
296 behaviour. To fix the undefined behaviour all objects that are part of the
297 final in-memory image must agree on the size of structures, and this may
298 require recompilation.
302 * The following bugs are resolved with this release:
304 2546, 2560, 5159, 6809, 7006, 10060, 10062, 10283, 10357, 10686, 11120,
305 11561, 12310, 12387, 12492, 12515, 12723, 13550, 13889, 13951, 13988,
306 14142, 14176, 14200, 14256, 14280, 14293, 14317, 14327, 14478, 14496,
307 14582, 14686, 14812, 14888, 14894, 14907, 14908, 14909, 14920, 14952,
308 14964, 14981, 14982, 14985, 14991, 14994, 14996, 15000, 15003, 15006,
309 15007, 15014, 15020, 15022, 15023, 15036, 15054, 15055, 15062, 15078,
310 15084, 15085, 15086, 15100, 15160, 15214, 15221, 15232, 15234, 15283,
311 15285, 15287, 15304, 15305, 15307, 15309, 15327, 15330, 15335, 15336,
312 15337, 15339, 15342, 15346, 15359, 15361, 15366, 15380, 15381, 15394,
313 15395, 15405, 15406, 15409, 15416, 15418, 15419, 15423, 15424, 15426,
314 15429, 15431, 15432, 15441, 15442, 15448, 15465, 15480, 15485, 15488,
315 15490, 15492, 15493, 15497, 15506, 15529, 15536, 15553, 15577, 15583,
316 15618, 15627, 15631, 15654, 15655, 15666, 15667, 15674, 15711, 15755,
319 * CVE-2013-2207 Incorrectly granting access to another user's pseudo-terminal
320 has been fixed by disabling the use of pt_chown (Bugzilla #15755).
321 Distributions can re-enable building and using pt_chown via the new configure
322 option `--enable-pt_chown'. Enabling the use of pt_chown carries with it
323 considerable security risks and should only be used if the distribution
324 understands and accepts the risks.
326 * CVE-2013-0242 Buffer overrun in regexp matcher has been fixed (Bugzilla
329 * CVE-2013-1914 Stack overflow in getaddrinfo with many results has been
330 fixed (Bugzilla #15330).
332 * Add support for calling C++11 thread_local object destructors on thread
333 and program exit. This needs compiler support for offloading C++11
334 destructor calls to glibc.
336 * Improved worst case performance of libm functions with double inputs and
339 * Support for priority inherited mutexes in pthread condition variables on
340 non-x86 architectures.
342 * Port to Xilinx MicroBlaze contributed by David Holsgrove.
344 * Optimized string functions for AArch64. Implemented by Marcus Shawcroft.
346 * Optimized string functions for ARM. Implemented by Will Newton and
349 * Optimized libm functions for SPARC. Implemented by David S. Miller.
351 * Support for building more of ARM glibc as Thumb-2 code. Implemented by
354 * Support for building most of MIPS glibc as MIPS16 code. Implemented by
355 Chung-Lin Tang, Maciej W. Rozycki and Maxim Kuvyrkov.
357 * Added a benchmark framework to track performance of functions in glibc.
359 * New <math.h> macro named issignaling to check for a signaling NaN (sNaN).
360 It is based on draft TS 18661 and currently enabled as a GNU extension.
362 * On Linux, the clock function now uses the clock_gettime system call
363 for improved precision, rather than old times system call.
365 * Added support for version-3 tz format files. This is needed when using
366 the tz database release 2013e or later, and affects a few unusual cases --
367 currently only TZ='America/Godthab' for time stamps after 2037.
369 * Added new API functions pthread_getattr_default_np and
370 pthread_setattr_default_np to get and set the default pthread
371 attributes of a process.
373 * Added support for TSX lock elision for pthread mutexes on i386 and x86-64.
374 This may improve lock scaling of existing programs on TSX capable systems.
375 When the --enable-lock-elision=yes parameter is specified at configure
376 time lock elision will be enabled by default for all PTHREAD_MUTEX_DEFAULT
379 * Support added for AT_HWCAP2 (to coincide with Linux kernel 3.10
380 availability). Implemented by Ryan S. Arnold.
382 * Support added for POWER8 platform. Implemented by Ryan S. Arnold.
386 * The following bugs are resolved with this release:
388 1349, 3439, 3479, 3665, 5044, 5246, 5298, 5400, 6530, 6677, 6778, 6808,
389 9685, 9914, 10014, 10038, 10114, 10191, 10631, 10873, 11438, 11607, 11638,
390 11741, 12140, 13013, 13412, 13542, 13601, 13603, 13604, 13629, 13679,
391 13696, 13698, 13717, 13741, 13759, 13761, 13763, 13881, 13939, 13950,
392 13952, 13966, 14042, 14047, 14090, 14150, 14151, 14152, 14154, 14157,
393 14166, 14173, 14195, 14197, 14237, 14246, 14251, 14252, 14283, 14298,
394 14303, 14307, 14328, 14331, 14336, 14337, 14347, 14349, 14368, 14376,
395 14417, 14447, 14459, 14476, 14477, 14501, 14505, 14510, 14516, 14518,
396 14519, 14530, 14532, 14538, 14543, 14544, 14545, 14557, 14562, 14568,
397 14576, 14579, 14583, 14587, 14595, 14602, 14610, 14621, 14638, 14645,
398 14648, 14652, 14660, 14661, 14669, 14672, 14683, 14694, 14716, 14719,
399 14743, 14767, 14783, 14784, 14785, 14793, 14796, 14797, 14801, 14803,
400 14805, 14807, 14811, 14815, 14821, 14822, 14824, 14828, 14831, 14833,
401 14835, 14838, 14856, 14863, 14865, 14866, 14868, 14869, 14871, 14872,
402 14879, 14889, 14893, 14898, 14914.
404 * Optimization of memcpy for MIPS.
406 * CVE-2011-4609 svc_run() produces high cpu usage when accept fails with
407 EMFILE has been fixed (Bugzilla #14889).
409 * The add-on ports collection is now distributed in the "ports" subdirectory
410 of the main GNU C Library distribution, rather than separately.
412 * Port to ARM AArch64 contributed by Linaro.
414 * Support for STT_GNU_IFUNC symbols added for s390 and s390x.
415 Optimized versions of memcpy, memset, and memcmp added for System z10 and
417 Implemented by Andreas Krebbel.
419 * The new function secure_getenv allows secure access to the environment,
420 returning NULL if running in a SUID/SGID process. This function replaces
421 the internal function __secure_getenv.
423 * SystemTap static probes have been added into the dynamic linker.
424 Implemented by Gary Benson.
426 * Optimizations of string functions strstr, strcasestr and memmem.
427 Implemented by Maxim Kuvyrkov.
429 * The minimum Linux kernel version that this version of the GNU C Library
430 can be used with is 2.6.16.
432 * Optimizations of string functions memchr, wcschr, wcscpy, and wcsrchr for
433 powerpc POWER7. Implemented by Will Schmidt.
435 * New configure option --disable-nscd builds the C library such that it
436 never attempts to contact the Name Service Caching Daemon (nscd).
437 New configure option --disable-build-nscd avoids building nscd itself;
438 this is the default if --disable-nscd is used.
440 * Improved support for cross-compilation, including cross-testing and
441 bootstrap builds without a previously built glibc.
443 * Several testsuite tests are now able to test multiple IFUNC variants of an
444 interface, rather than just testing the one that would be chooen by
447 * New configure options --with-bugurl and --with-pkgversion, for
448 distributors to use to embed their bug-reporting and package version
449 information in --help and --version output.
451 * The ttyname and ttyname_r functions on Linux now fall back to searching for
452 the tty file descriptor in /dev/pts or /dev if /proc is not available. This
453 allows creation of chroots without the procfs mounted on /proc.
455 * The `crypt' function now fails if passed salt bytes that violate the
456 specification for those values. On Linux, the `crypt' function will
457 consult /proc/sys/crypto/fips_enabled to determine if "FIPS mode" is
458 enabled, and fail on encrypted strings using the MD5 or DES algorithm
459 when the mode is enabled.
461 * The `clock_*' suite of functions (declared in <time.h>) is now available
462 directly in the main C library. Previously it was necessary to link with
463 -lrt to use these functions. This change has the effect that a
464 single-threaded program that uses a function such as `clock_gettime' (and
465 is not linked with -lrt) will no longer implicitly load the pthreads
466 library at runtime and so will not suffer the overheads associated with
467 multi-thread support in other code such as the C++ runtime library.
469 * New locales: ayc_PE, doi_IN, ia_FR, mni_IN, nhn_MX, niu_NU, niu_NZ,
474 * The following bugs are resolved with this release:
476 174, 208, 350, 369, 411, 706, 766, 887, 2074, 2541, 2547, 2548, 2550,
477 2551, 2552, 2553, 2554, 2562, 2563, 2565, 2566, 2570, 2576, 2636, 2678,
478 3335, 3440, 3748, 3768, 3866, 3868, 3906, 3976, 3992, 4026, 4108, 4596,
479 4822, 5077, 5461, 5805, 5993, 6471, 6486, 6578, 6649, 6730, 6770, 6794,
480 6884, 6890, 6894, 6895, 6907, 6911, 6959, 7064, 9739, 9902, 10110, 10135,
481 10140, 10153, 10210, 10254, 10346, 10375, 10545, 10716, 10846, 11174,
482 11261, 11322, 11365, 11451, 11494, 11521, 11677, 11837, 11959, 12047,
483 12097, 12193, 12194, 12297, 12298, 12301, 12340, 12354, 12416, 12495,
484 13058, 13223, 13361, 13525, 13526, 13527, 13528, 13529, 13530, 13531,
485 13532, 13533, 13547, 13551, 13552, 13553, 13555, 13556, 13559, 13563,
486 13566, 13576, 13579, 13583, 13592, 13594, 13613, 13618, 13637, 13656,
487 13658, 13673, 13691, 13695, 13704, 13705, 13706, 13718, 13726, 13738,
488 13739, 13743, 13750, 13758, 13760, 13761, 13775, 13786, 13787, 13792,
489 13806, 13824, 13840, 13841, 13844, 13846, 13848, 13851, 13852, 13854,
490 13871, 13872, 13873, 13879, 13882, 13883, 13884, 13885, 13886, 13892,
491 13895, 13908, 13910, 13911, 13912, 13913, 13914, 13915, 13916, 13917,
492 13918, 13919, 13920, 13921, 13922, 13923, 13924, 13926, 13927, 13928,
493 13938, 13941, 13942, 13954, 13955, 13956, 13963, 13967, 13968, 13970,
494 13973, 13979, 13983, 13986, 13996, 14012, 14027, 14033, 14034, 14036,
495 14040, 14043, 14044, 14048, 14049, 14050, 14053, 14055, 14059, 14064,
496 14075, 14080, 14083, 14103, 14104, 14109, 14112, 14117, 14122, 14123,
497 14134, 14153, 14183, 14188, 14199, 14210, 14218, 14229, 14241, 14273,
500 * Support for the x32 ABI on x86-64 added. The x32 target is selected by
501 configuring glibc with:
502 BUILD_CC='gcc' CC='gcc -mx32' CXX='g++ -mx32'
503 Visit <http://sites.google.com/site/x32abi/> for more x32 ABI info.
504 Implemented by H.J. Lu.
508 + define static_assert
510 + do not declare gets
512 + declare at_quick_exit and quick_exit also for ISO C11
514 + aligned_alloc. NB: The code is deliberately allows the size parameter
515 to not be a multiple of the alignment. This is a moronic requirement
516 in the standard but it is only a requirement on the caller, not the
521 + uchar.h support added
523 + CMPLX, CMPLXF, CMPLXL added
525 Implemented by Ulrich Drepper.
527 * Support for the IA-64 has been moved to ports.
529 * Remove support for anything but ELF binary format
531 * Checking versions of poll, ppoll added.
532 Implemented by Ulrich Drepper.
534 * More generic and 64-bit performance optimizations to math functions.
535 Implemented by Ulrich Drepper.
537 * New configure option --enable-obsolete-rpc makes the deprecated RPC
538 headers and functions available at compile time as they were before
539 version 2.14. This option will be removed at some time in the future
540 after the TI-RPC library becomes fully sufficient for the needs of
541 existing applications.
543 * Compatibility code for Linux kernel versions before 2.4 has been removed.
544 Note that glibc is not expected to work with any Linux kernel version
547 * New header <sys/auxv.h> and function getauxval allowing easy access to
548 the AT_* key-value pairs passed from the Linux kernel. The header also
549 defines the HWCAP_* bits associated with the AT_HWCAP key.
551 * New locales: mag_IN
553 * New configure option --enable-systemtap builds SystemTap static probes
554 into libc for setjmp and longjmp and into libpthread for various operations.
555 So far the setjmp/longjmp probes and some of the libpthread probes are
556 provided only for i*86 and x86_64.
557 Implemented by Roland McGrath and Rayson Ho.
559 * Optimized expf for x86-32 and x86-64. Implemented by Liubov Dmitrieva.
561 * More optimized functions for PowerPC. Implemented by Adhemerval Zanella
564 * More optimized functions for SPARC. Implemented by David S. Miller.
566 * Improved support for cross-compilation, especially bootstrap builds
567 without a previously built glibc.
569 * Ports for the TILE-Gx and TILEPro families of processors. Contributed by
570 Chris Metcalf from Tilera.
572 * Support for the old ARM ABI has been removed from ports. Only the EABI is
573 now supported for ARM processors.
575 * The hard-float variant of the ARM EABI now uses /lib/ld-linux-armhf.so.3
576 as the name of the dynamic linker, to distinguish it from the
577 /lib/ld-linux.so.3 dynamic linker used for the base EABI.
579 * Support for CRIS has been removed from ports.
581 * A new class of installed header has been documented for low-level
582 platform-specific functionality. PowerPC added the first instance with a
583 function to provide time base register access. Contributed by Tulio
584 Magno Quites Machado Filho.
586 * ix86 configurations now install header files that are consistent with
587 what x86-64 configurations install. These same header files can be used
588 for -m32, -m64, or -mx32 builds.
589 Contributed by H.J. Lu.
591 * Math library bug fixes. A thorough audit of all open math library bugs was
592 conducted by Joseph Myers. Significant progress was made on many math
593 library bugs resulting in more accurate exceptions and function results.
594 Many thanks to all those that contributed including Andreas Jaeger for his
595 patch review and work on the x87 trigonometric instruction issues.
597 * Timezone data is no longer installed. Timezone-related binaries and scripts
598 will continue to be installed. Users should obtain their timezone data from
599 their distribution provider or from the tzdata package at
600 <ftp://munnari.oz.au/pub/>.
604 * The following bugs are resolved with this release:
606 6779, 6783, 9696, 10103, 10709, 11589, 11929, 12403, 12786, 12840, 12847,
607 12868, 12852, 12874, 12885, 12892, 12906, 12907, 12922, 12935, 12962,
608 13007, 13021, 13061, 13062, 13067, 13068, 13085, 13088, 13090, 13092,
609 13096, 13114, 13118, 13123, 13134, 13138, 13147, 13150, 13166, 13179,
610 13185, 13189, 13192, 13268, 13276, 13282, 13291, 13305, 13328, 13335,
611 13337, 13344, 13358, 13367, 13413, 13416, 13423, 13439, 13446, 13472,
612 13484, 13506, 13515, 13523, 13524, 13538, 13540
614 * New program pldd to list loaded object of a process
615 Implemented by Ulrich Drepper.
617 * Add nss_db support back to glibc. No more dependency on Berkeley db
618 and support for initgroups lookups.
619 Implemented by Ulrich Drepper.
621 * Optimized strcpy, strncpy, stpcpy, stpncpy for SSE2 and SSSE3 on x86-32.
622 Contributed by HJ Lu.
624 * Improved strcpy, strncpy, stpcpy, stpncpy for SSE2 and SSSE3 on x86-64.
625 Contributed by HJ Lu.
627 * Optimized strcat, strncat on x86-64 and optimized wcscmp, wcslen, strnlen
628 on x86-32 and x86-64.
629 Contributed by Liubov Dmitrieva.
631 * Optimized strchr and strrchr for SSE on x86-32.
632 Contributed by Liubov Dmitrieva.
634 * Optimized memchr, memrchr, rawmemchr, memcmp, wmemcmp, wcschr, wcscpy
635 for x86-64 and x86-32.
636 Contributed by Liubov Dmitrieva.
638 * New interfaces: scandirat, scandirat64
639 Implemented by Ulrich Drepper.
641 * Checking versions of FD_SET, FD_CLR, and FD_ISSET added.
642 Implemented by Ulrich Drepper.
644 * nscd now also caches the netgroup database.
645 Implemented by Ulrich Drepper.
647 * Integrate libm with gcc's -ffinite-math-only option.
648 Implemented by Ulrich Drepper.
650 * Lots of generic, 64-bit, and x86-64-specific performance optimizations
651 to math functions. Implemented by Ulrich Drepper.
653 * Optimized strcasecmp and strncasecmp for AVX on x86-64.
654 Implemented by Ulrich Drepper.
656 * New Linux interfaces: process_vm_readv, process_vm_writev
658 * Optimized strcasecmp and strncasecmp for SSSE3 and SSE4.2 on x86-32.
659 Implemented by Ulrich Drepper.
661 * Optimized nearbyint and strcasecmp for PPC.
662 Implemented by Adhemerval Zanella.
664 * New locales: bho_IN, unm_US, es_CU, ta_LK
668 * The following bugs are resolved with this release:
670 386, 6420, 7101, 9730, 9732, 9809, 10138, 10149, 10157, 11099, 11257,
671 11258, 11487, 11532, 11558, 11578, 11634, 11653, 11668, 11697, 11724,
672 11781, 11799, 11820, 11837, 11857, 11869, 11892, 11895, 11901, 11945,
673 11947, 11952, 11987, 12052, 12083, 12158, 12178, 12200, 12346, 12350,
674 12393, 12420, 12432, 12445, 12449, 12453, 12454, 12460, 12469, 12489,
675 12509, 12510, 12511, 12518, 12527, 12541, 12545, 12551, 12582, 12583,
676 12587, 12597, 12601, 12611, 12625, 12626, 12631, 12650, 12653, 12655,
677 12660, 12671, 12681, 12684, 12685, 12711, 12713, 12714, 12717, 12723,
678 12724, 12734, 12738, 12746, 12766, 12775, 12777, 12782, 12788, 12792,
679 12795, 12811, 12813, 12814, 12841
681 * The RPC implementation in libc is obsoleted. Old programs keep working
682 but new programs cannot be linked with the routines in libc anymore.
683 Programs in need of RPC functionality must be linked against TI-RPC.
684 The TI-RPC implementation is IPv6 enabled and there are other benefits.
686 Visible changes of this change include (obviously) the inability to link
687 programs using RPC functions without referencing the TI-RPC library and the
688 removal of the RPC headers from the glibc headers.
689 Implemented by Ulrich Drepper.
691 * New Linux interfaces: clock_adjtime, name_to_handle_at, open_by_handle_at,
692 syncfs, setns, sendmmsg
694 * New locales: os_RU, bem_ZA, en_ZA, ff_SN, sw_KE, sw_TZ, lb_LU, wae_CH,
695 yue_HK, lij_IT, mhr_RU
697 * New encodings: CP770, CP771, CP772, CP773, CP774
699 * New program sotruss to trace calls through PLTs
700 Implemented by Ulrich Drepper.
702 * The malloc hook implementation is marked deprecated and will be removed
703 from the default implementation in the next version. The design never
704 worked ever since the introduction of threads. Even programs which do
705 not create threads themselves can use multiple threads created internally.
709 * The following bugs are resolved with this release:
711 3268, 6812, 7066, 10085, 10484, 10563, 10851, 11149, 11155, 11577, 11611,
712 11640, 11655, 11701, 11840, 11856, 11883, 11903, 11904, 11968, 11979,
713 12005, 12037, 12067, 12077, 12078, 12092, 12093, 12107, 12108, 12113,
714 12140, 12159, 12167, 12191, 12194, 12201, 12204, 12205, 12207, 12348,
717 * New Linux interfaces: prlimit, prlimit64, fanotify_init, fanotify_mark
719 * POWER7 optimizations: memset, memcmp, strncmp
721 * New optimized string functions for x86-64: strnlen (SSE2),
722 strcasecmp (SSE2, SSSE3, SSE4.2), strncasecmp (SSE2, SSSE3, SSE4.2)
723 Implemented by Ulrich Drepper.
727 * The following bugs are resolved with this release:
729 3662, 4457, 5553, 10162, 10401, 10414, 10554, 10824, 10864, 10915,
730 10918, 10936, 10939, 10958, 10968, 10969, 10972, 10992, 11000, 11001,
731 11007, 11010, 11027, 11039, 11040, 11041, 11043, 11046, 11056, 11070,
732 11093, 11115, 11125, 11126, 11127, 11134, 11141, 11149, 11183, 11184,
733 11185, 11186, 11187, 11188, 11189, 11190, 11191, 11192, 11193, 11194,
734 11200, 11230, 11235, 11242, 11254, 11258, 11271, 11272, 11276, 11279,
735 11287, 11292, 11319, 11332, 11333, 11387, 11389, 11390, 11394, 11397,
736 11410, 11438, 11449, 11470, 11471, 11520, 11537, 11538, 11571
738 * New interfaces: pthread_getname_np, pthread_setname_np
740 * New Linux interface: recvmmsg
742 * STT_GNU_IFUNC implemented for Sparc by David Miller.
744 * The dynamic linker now recognizes supported ABI versions from the
745 EI_ABIVERSION field in the ELF header.
746 Implemented by Ulrich Drepper.
748 * New NIS mode selector ADJUNCT_AS_SHADOW. The passwd.adjunct.byname table
749 will not be used to fill in password fields in the passwd.byname replies.
750 Instead it is used to synthesize the shadow.byname table, should it be
751 missing. This is a useful mode in some installations involving Solaris.
752 Implemented by Ulrich Drepper.
754 * New locales: kok_IN, sq_MK, cv_RU
758 * The following bugs are resolved with this release:
760 3270, 7094, 9924, 9986, 10011, 10085, 10107, 10159, 10162, 10166, 10183,
761 10195, 10196, 10200, 10203, 10207, 10211, 10213, 10217, 10221, 10229,
762 10262, 10286, 10312, 10315, 10319, 10349, 10360, 10391, 10402, 10416,
763 10418, 10422, 10425, 10446, 10448, 10452, 10540, 10553, 10560, 10564,
764 10609, 10643, 10692, 10713, 10717, 10730, 10731, 10742, 10780, 10784,
765 10789, 10817, 10823, 10840, 10847
767 * New interfaces: execvpe, pthread_sigqueue, mkstemps, mkstemps64, mkostemps,
769 Implemented by Ulrich Drepper.
771 * Checking version of longjmp added that fails if an uninitialized stack
772 frame would be created. Implemented by Ulrich Drepper.
774 * STT_GNU_IFUNC is now supported in static executables.
775 Implemented by H.J. Lu.
777 * STT_GNU_IFUNC implemented for PPC by Alan Modra.
779 * New optimized string functions for x86-64: strstr, strcasestr, memcmp,
780 strcspn, strpbrk, strspn, strcpy, stpcpy, strncpy, strcmp (SSE2, SSE4.2),
781 strncmp (SSE2, SSE4.2), strchr (SSE4.2), strrchr (SSE4.2).
782 Contributed by H.J. Lu.
784 strlen, rawmemchr, strcmp (SSSE3), strncmp (SSSE3).
785 Implemented by Ulrich Drepper.
787 * New optimized string functions for x86: strlen, strcspn, strspn, strpbrk,
789 Contributed by H.J. Lu.
791 * Support for fma instruction in AVX on x86-64.
792 Implemented by H.J. Lu and Ulrich Drepper.
794 * AVX support in x86-64 auditing support in ld.so.
795 Implemented by H.J. Lu.
797 * STB_GNU_UNIQUE support added.
798 Implemented by Ulrich Drepper.
800 * Implement second fallback mode for optimized DNS lookup for even more
801 broken environments. If two requests from the same port are not
802 handled correctly close the socket and open a new one before sending
803 the second request. The 'single-request-reopen' option in /etc/resolv.conf
804 can be used to select this mode right away, instead of rediscovering the
805 necessity is every process again.
806 Implemented by Ulrich Drepper.
808 * New resolver flag RES_USE_DNSSEC to enable use of verified lookup.
809 Implemented by Adam Tkac.
811 * Optimized iconv conversions for S390x.
812 Implemented by Andreas Krebbel.
814 * Using condvars with PI mutexes is now more efficient due to kernel
815 support for requeueing to PI futexes. NPTL support added for x86-64.
816 Implemented by Ulrich Drepper.
818 * New locales: ps_AF, my_MM
822 * The following bugs are resolved with this release:
824 697, 5381, 5807, 6411, 6545, 7040, 7058, 7067, 7080, 7083, 7095, 7098,
825 9677, 9694, 9697, 9701, 9704, 9705, 9706, 9720, 9726, 9730, 9733, 9736,
826 9741, 9750, 9753, 9759, 9781, 9791, 9793, 9823, 9833, 9844, 9880, 9881,
827 9891, 9893, 9895, 9913, 9916, 9920, 9948, 9955, 9957, 9963, 9985, 10052,
828 10069, 10086, 10087, 10090, 10092, 10093, 10100, 10118, 10128
830 * New interfaces: preadv, preadv64, pwritev, pwritev64, malloc_info
831 Implemented by Ulrich Drepper.
833 * New Linux interfaces: accept4, fallocate, fallocate64.
834 Implemented by Ulrich Drepper.
836 * Correct declarations of string function when used in C++ code. This
837 could lead to compile errors for invalid C++ code.
839 * XPG7/POSIX 2008 compilation environment. Many GNU-specific functions are
842 * New POSIX 2008 interface: psiginfo
843 Implemented by Ulrich Drepper.
845 * New ISO C++1x interfaces: quick_exit, at_quick_exit
846 Implemented by Ulrich Drepper.
848 * Support for selecting between multiple function definitions at runtime
849 using STT_GNU_IFUNC symbols. Implemented by Ulrich Drepper.
851 * The libcrypt library can now use the hash function implementations in
852 NSS. Implemented by Ulrich Drepper.
854 * The malloc implementation can be compiled to be less memory efficient
855 but higher performing in multi-threaded programs.
856 Implemented by Ulrich Drepper.
858 * New locales: nan_TW@latin, ks_IN
860 * Faster strlen, strchr, strchrnul, strrchr, memchr, and rawmemchr for x86-64.
861 Implemented by Ulrich Drepper.
863 * Extended printf hook support. It is possible to use user-defined types
864 and extend existing format specifiers.
865 Implemented by Ulrich Drepper.
867 * Handling for group shadow files has been added.
868 Implemented by Ulrich Drepper.
870 * DNS IPv4-IPv6 parallel lookup now deals better with broken DNS
871 servers (the case, e.g., for some people using the built-in DNS
872 server in ADSL modems/routers). There is a once-per-process timeout
873 in case of a broken server. To avoid it, users can run nscd or put
874 'options single-request' in /etc/resolv.conf.
875 Implemented by Ulrich Drepper.
879 * The following bugs are resolved with this release:
881 3406, 5209, 5210, 5381, 5794, 5814, 5911, 6428, 6438, 6442, 6447, 6461,
882 6472, 6505, 6544, 6589, 6612, 6634, 6653, 6654, 6657, 6698, 6712, 6713,
883 6719, 6723, 6724, 6740, 6763, 6771, 6790, 6791, 6817, 6824, 6839, 6843,
884 6845, 6856, 6857, 6860, 6867, 6875, 6919, 6920, 6942, 6947, 6955, 6966,
885 6968, 6974, 6980, 6995, 7008, 7009, 7029
887 * Unified lookup for getaddrinfo: IPv4 and IPv6 addresses are now looked
888 up at the same time. Implemented by Ulrich Drepper.
890 * TLS descriptors for LD and GD on x86 and x86-64.
891 Implemented by Alexandre Oliva.
893 * getaddrinfo now handles DCCP and UDPlite.
894 Implemented by Ulrich Drepper.
896 * New fixed-size conversion macros: htobe16, htole16, be16toh, le16toh,
897 htobe32, htole32, be32toh, le32toh, htobe64, htole64, be64toh, le64toh.
898 Implemented by Ulrich Drepper.
900 * New implementation of memmem, strstr, and strcasestr which is O(n).
901 Implemented by Eric Blake.
903 * New Linux interfaces: inotify_init1, dup3, epoll_create1, pipe2
905 * Implement "e" option for popen to open file descriptor with the
906 close-on-exec flag set. Implemented by Ulrich Drepper.
908 * Implement "b" mode for fmemopen. In this mode writes writes don't
909 implicitly add a NUL byte and seeks from the end of the buffer really
910 use the buffer end, not the string length as the basis.
911 Implemented by Ulrich Drepper.
913 * Many functions, exported and internal, now atomically set the close-on-exec
914 flag when run on a sufficiently new kernel. Implemented by Ulrich Drepper.
916 * Sorting rules for some Indian languages (Kannada, Gurumukhi, Telugu,
918 Implemented by Pravin Satpute.
920 * New locales: sd_IN, sd_IN@devanagari, ks_IN@devanagari, ht_HT, en_AG, nl_AW.
924 * The following bugs are resolved with this release:
926 2549, 3112, 4314, 4407, 4997, 5012, 5040, 5112, 5204, 5208, 5209, 5220,
927 5222, 5224, 5225, 5237, 5238, 5240, 5245, 5277, 5346, 5375, 5378, 5382,
928 5424, 5427, 5428, 5435, 5436, 5439, 5441, 5442, 5443, 5451, 5452, 5454,
929 5455, 5463, 5464, 5465, 5475, 5477, 5478, 5520, 5541, 5545, 5553, 5600,
930 5602, 5607, 5614, 5627, 5628, 5736, 5737, 5741, 5753, 5760, 5762, 5768,
931 5774, 5777, 5778, 5779, 5786, 5790, 5818, 5854, 5857, 5903, 5939, 5979,
932 5983, 5995, 5998, 6004, 6007, 6020, 6021, 6024, 6040, 6042
934 * New locales: bo_CN, bo_IN, shs_CA.
936 * New encoding: HP-ROMAN9, HP-GREEK8, HP-THAI8, HP-TURKISH8.
938 * Sorting rules for some Indian languages (Devanagari and Gujarati).
939 Implemented by Pravin Satpute.
941 * IPV6 addresses in /etc/resolv.conf can now have a scope ID
943 * nscd caches now all timeouts for DNS entries
944 Implemented by Ulrich Drepper.
946 * nscd is more efficient and wakes up less often.
947 Implemented by Ulrich Drepper.
949 * More checking functions: asprintf, dprintf, obstack_printf, vasprintf,
950 vdprintf, and obstack_vprintf.
951 Implemented by Jakub Jelinek.
953 * Faster memset for x86-64.
954 Implemented by Harsha Jagasia and H.J. Lu.
956 * Faster memcpy on x86.
957 Implemented by Ulrich Drepper.
959 * ARG_MAX is not anymore constant on Linux. Use sysconf(_SC_ARG_MAX).
960 Implemented by Ulrich Drepper.
962 * Faster sqrt and sqrtf implemention for some PPC variants.
963 Implemented by Steven Munroe.
967 * The following bugs are resolved with this release:
969 4125, 4126, 4178, 4359, 4407, 4512, 4514, 4525, 4554, 4556, 4557, 4566,
970 4582, 4586, 4588, 4599, 4610, 4647, 4702, 4705, 4726, 4745, 4772, 4773,
971 4775, 4776, 4792, 4813, 4814, 4816, 4833, 4858, 4860, 4896, 4905, 4925,
972 4936, 4937, 4938, 4941, 4946, 4963, 4972, 5010, 5028, 5043, 5058, 5063,
973 5071, 5103, 5104, 5112, 5113, 5184, 5186
975 * More checking functions: fread, fread_unlocked, open*, mq_open.
976 Implemented by Jakub Jelinek and Ulrich Drepper.
978 * Extend fortification to C++. Implemented by Jakub Jelinek.
980 * Implement 'm' modifier for scanf. Add stricter C99/SUS compliance
981 by not recognizing 'a' as a modifier when those specs are requested.
982 Implemented by Jakub Jelinek.
984 * PPC optimizations to math and string functions.
985 Implemented by Steven Munroe.
987 * New interfaces: mkostemp, mkostemp64. Like mkstemp* but allow additional
988 options to be passed. Implemented by Ulrich Drepper.
990 * More CPU set manipulation functions. Implemented by Ulrich Drepper.
992 * New Linux interfaces: signalfd, eventfd, eventfd_read, and eventfd_write.
993 Implemented by Ulrich Drepper.
995 * Handle private futexes in the NPTL implementation.
996 Implemented by Jakub Jelinek and Ulrich Drepper.
998 * Add support for O_CLOEXEC. Implement in Hurd. Use throughout libc.
999 Implemented by Roland McGrath and Ulrich Drepper.
1001 * Linux/x86-64 vDSO support. Implemented by Ulrich Drepper.
1003 * SHA-256 and SHA-512 based password encryption.
1004 Implemented by Ulrich Drepper.
1006 * New locales: ber_DZ, ber_MA, en_NG, fil_PH, fur_IT, fy_DE, ha_NG, ig_NG,
1007 ik_CA, iu_CA, li_BE, li_NL, nds_DE, nds_NL, pap_AN, sc_IT, tk_TM, ug_CN,
1010 + New iconv modules: MAC-CENTRALEUROPE, ISO-8859-9E, KOI8-RU.
1011 Implemented by Ulrich Drepper.
1015 * The following bugs are resolved with this release:
1017 3156, 3213, 3285, 3291, 3306, 3313, 3320, 3322, 3325, 3326, 3334, 3348,
1018 3352, 3363, 3369, 3426, 3427, 3429, 3451, 3458, 3465, 3480, 3483, 3493,
1019 3514, 3515, 3559, 3632, 3664, 3673, 3674, 3745, 3747, 3818, 3840, 3842,
1020 3851, 3855, 3884, 3885, 3902, 3905, 3919, 3944, 3954, 3955, 3957, 3991,
1021 3995, 3996, 4024, 4040, 4069, 4070, 4074, 4076, 4096, 4101, 4102, 4114,
1022 4130, 4131, 4181, 4276, 4306, 4342, 4344, 4349, 4364, 4368, 4381, 4392,
1023 4403, 4405, 4406, 4411, 4438, 4439, 4455, 4456, 4465, 4512, 4514, 4586,
1026 * New Linux interfaces: epoll_pwait, sched_getcpu.
1028 * New generic interfaces: strerror_l.
1030 * nscd can now cache the services database. Implemented by Ulrich Drepper.
1034 * The following bugs are resolved with this release:
1036 39, 68, 192, 352, 388, 531, 935, 1006, 1201, 1203, 1386, 1782, 1783, 1784,
1037 1785, 1786, 1787, 1951, 1974, 1996, 2072, 2098, 2125, 2134, 2158, 2182,
1038 2349, 2376, 2386, 2389, 2415, 2418, 2420, 2423, 2450, 2451, 2466, 2472,
1039 2473, 2477, 2498, 2499, 2501, 2502, 2505, 2507, 2508, 2509, 2517, 2526,
1040 2569, 2571, 2592, 2611, 2625, 2632, 2644, 2662, 2680, 2683, 2684, 2693,
1041 2695, 2703, 2734, 2751, 2764, 2766, 2775, 2792, 2821, 2823, 2832, 2841,
1042 2843, 2883, 2892, 2908, 2914, 2926, 2961, 2978, 2980, 2987, 2997, 2998,
1043 3013, 3018, 3034, 3040, 3044, 3123, 3124, 3137, 3138, 3143, 3155, 3189,
1044 3225, 3251, 3252, 3253, 3273
1046 * For Linux, the sorting of addresses returned by getaddrinfo now also
1047 handles rules 3, 4, and 7 from RFC 3484. I.e., all rules are handled.
1048 Implemented by Ulrich Drepper.
1050 * Allow system admin to configure getaddrinfo with the /etc/gai.conf file.
1051 Implemented by Ulrich Drepper.
1053 * New Linux interfaces: splice, tee, sync_file_range, vmsplice.
1055 * New iconv module for MIK. Contributed by Alexander Shopov.
1057 * For sites with broken group and/or passwd database, the auto-propagate
1058 option of nscd can prevent creating ID lookup entries from the results
1059 of a name lookup and vice versa. This usually is no problem but some
1060 site might have problems with the default behavior.
1061 Implemented by Ulrich Drepper.
1063 * Iterating over entire database in NIS can be slow. With the
1064 SETENT_BATCH_READ option in /etc/default/nss a system admin can decide
1065 to trade time for memory. The entire database will be read at once.
1066 Implemented by Ulrich Drepper.
1068 * The interfaces introduced in RFC 3542 have been implemented by
1071 * Support for the new ELF hash table format was added by Ulrich Drepper.
1073 * Support for priority inheritance mutexes added by Jakub Jelinek and
1076 * Support for priority protected mutexes added by Jakub Jelinek.
1078 * New locales: nr_ZA, pa_PK, ca_AD, ca_FR, ca_IT, el_CY, tr_CY, as_IN,
1079 or_IN, csb_PL, fy_NL, sr_ME.
1083 * More overflow detection functions.
1085 * New iconv converters for IBM1025, IBM1122, IBM1137, IBM1153,
1086 IBM1154, IBM1155, IBM1156, IBM1157, and IBM1158 contributed by Jiro Sekiba.
1088 More converters for IBM803, IBM901, IBM902, IBM921, IBM1008, IBM1097,
1089 IBM1112, IBM1123, IBM1130, IBM1140, IBM1141, IBM1142, IBM1143, IBM1144,
1090 IBM1145, IBM1146, IBM1147, IBM1148, IBM1149, IBM1166, IBM1167, IBM4517,
1091 IBM4899, IBM4909, IBM4971, IBM5347, IBM9030, IBM9066, IBM9448, IBM12712,
1092 IBM16804, IBM1364, IBM1371, IBM1388, IBM1390, and IBM1399 contributed
1093 by Masahide Washizawa.
1095 * It is now possible to install audit libraries for the dynamic linker using
1096 LD_AUDIT. Implemented by Ulrich Drepper.
1098 * The LinuxThreads add-on, providing pthreads on Linux 2.4 kernels, is no
1099 longer supported. The new NPTL implementation requires Linux 2.6 kernels.
1100 For a libc and libpthread that works well on Linux 2.4 kernels, we
1101 recommend using the stable 2.3 branch.
1103 * The new function open_wmemstream acts like open_memstream,
1104 but uses a wchar_t wide character buffer.
1106 * The new function ppoll is an improved version of poll, similar to pselect.
1108 * New interfaces: fdopendir, openat, fstatat, fchmodat, fchownat,
1109 futimesat, faccessat, mkdirat, mkfifoat, mknodat,
1110 renameat, unlinkat, linkat, symlinkat, readlinkat.
1112 * New Linux kernel system calls: unshare,
1113 inotify_init, inotify_add_watch, inotify_rm_watch.
1115 * The euidaccess function is now also known by the alias eaccess,
1116 for compatibility with some other systems.
1118 * Timezone data updated to 2006b version.
1122 * The following bugs are resolved with this release:
1124 38, 253, 549, 622, 653, 721, 758, 851, 877, 915, 934, 955, 961,
1125 1016, 1037, 1076, 1079, 1080, 1081, 1082, 1083, 1084, 1085, 1086,
1126 1087, 1088, 1090, 1091, 1092, 1093, 1094, 1095, 1096, 1097, 1098,
1127 1099, 1100, 1101, 1102, 1103, 1104, 1105, 1106, 1107, 1108, 1109,
1128 1110, 1111, 1112, 1113, 1125, 1137, 1138, 1249, 1250, 1251, 1252,
1129 1253, 1254, 1350, 1358, 1394, 1438, 1498, 1534
1131 Visit <http://sources.redhat.com/bugzilla/> for the details of each bug.
1133 * As of this release, GCC 4 can be used to compile the C Library.
1135 * Timezone data updated to 2005m version.
1139 * The following bugs are resolved with this release:
1141 284, 592, 602, 626, 633, 640, 650, 661, 671, 681, 693, 700, 710, 719,
1142 722, 723, 725, 726, 727, 728, 729, 730, 731, 732, 733, 734, 735, 736,
1143 737, 738, 739, 740, 741, 742, 743, 744, 745, 765, 767, 768, 769, 776,
1144 777, 787, 821, 822, 823, 825
1146 Visit <http://sources.redhat.com/bugzilla/> for the details of each bug.
1150 * Support for RFC 3678. Real implementations exist only for Linux so far.
1151 Implemented by Ulrich Drepper.
1153 * nscd can now cache entries persistently. Expiring entries are reloaded.
1154 For speedups the cache can be shared in memory with client processes.
1155 Implemented by Ulrich Drepper.
1157 * nscd can now perform SELinux checks.
1158 Implemented by Matthew Rickard <mjricka@epoch.ncsc.mil>.
1160 * getaddrinfo queries are now cached. Canonical name lookup is performed
1162 Implemented by Ulrich Drepper.
1164 * The nothrow function attribute is used when headers are used by gcc when
1165 compiling C code. This can avoid significant amounts of exception
1168 * The malloc functions perform more error checking and are stricter when
1169 it comes to reacting on errors. The default action is to terminate
1170 the process after showing an error message. Implemented by Ulrich Drepper.
1172 * Reverse lookups of IPv6 addresses does not use bit string or .ip6.int
1173 lookups anymore unless explicitly requested. Implemented by Ulrich Drepper.
1175 * Namespaces in ld.so are implemented. DSOs can be loaded in separate
1176 namespaces using the new function dlmopen(). This feature is of course,
1177 like most other dynamic loading functionality, not available in statically
1178 linked applications. Implemented by Ulrich Drepper.
1180 * Low-overhead boundary checking variants of string and some stdio functions
1181 were added. These are to be used in conjunction with a gcc patch by
1182 Jakub Jelinek which adds calls to these functions if possible.
1183 Implemented by Jakub Jelinek and Ulrich Drepper.
1185 * Old code for several operating systems and machine architectures that
1186 have not been in working condition in a long time have been removed from
1187 the main source tree maintained by the GNU C Library's maintainers.
1188 These files are now reside in the separate `ports' source module
1189 that is usable as an add-on when building the library.
1193 * New functions `dladdr1' and `dlinfo' in <dlfcn.h> provide more ways to
1194 interrogate the dynamic linker, compatible with the Solaris interface.
1196 * ELF thread-local storage support (TLS) now works on PowerPC and PowerPC64;
1197 implemented by Paul Mackerras, Steven Munroe, and Roland McGrath.
1199 * getifaddrs now uses the netlink interface on Linux to get its information.
1200 Implemented by Thorsten Kukuk.
1202 * getaddrinfo now implements AI_V4MAPPED, AI_ALL, and AI_ADDRCONF.
1203 Implemented by Ulrich Drepper.
1205 * support for non-executable stacks on x86 has been added. Changes mostly
1208 * regex is now much faster for multibyte locales. Changes by Jakub Jelinek
1211 * getaddrinfo now performs destination address selection according to
1216 * Thread-safe interfaces for many functions that access locale data
1217 were added in version 2.3, but these features were omitted from NEWS.
1218 Many functions have variants with an `_l' suffix that take a `locale_t'
1219 object as a parameter rather than consulting the current locale.
1220 The new functions `newlocale', `duplocale', and `freelocale' in <locale.h>
1221 create and maintain `locale_t' objects. Additionally, the new function
1222 `uselocale' sets "the current locale" (as used by functions not so
1223 parameterized) set for an individual thread. These features were added
1224 in version 2.3, implemented by Ulrich Drepper and Roland McGrath.
1226 * The functions getresuid, getresgid, setresuid, and setresgid, which
1227 have long been available on Linux, are now declared in <unistd.h>
1228 and are now also available on the Hurd.
1230 * ELF thread-local storage support (TLS) now works on x86-64.
1232 * The new dynamic string token $LIB is expanded in shared library names.
1233 This normally expands to lib, but on some 64-bit platforms to lib64 instead.
1235 * Aldy Hernandez contributed complete software floating point support for
1236 PowerPC machines with no FPU.
1238 * fexecve is implemented on Linux.
1240 * The `btowc' function should work at least twice as fast due to
1241 specialized callbacks in the iconv modules. Implemented by Bruno Haible.
1243 * With approriate thread add-ons cancelable functions are now implemented
1244 in libc.so as well. No need to call the function in libpthread. This
1245 change allowed to finally disable the incorrect and expensive handling
1246 of weak definition in ld.so.
1248 * Yet more PLT entries in libc.so have been removed. We finally arrived
1249 at the bare minimum. Startup times improved appropriately.
1251 * Support for the new Linux/x86 system call interface was added. The
1252 AT_SYSINFO auxiliary vector entry is recognized and handled.
1256 * Masahide Washizawa contributed iconv modules for IBM1163 and IBM1164
1259 * iconv (the program and the interface) now accepts empty names (excluding
1260 options like //TRANSLIT) to mean "use charset of current locale".
1262 * localedef can now transliterate characters in strings which are not in
1263 the provided charmap. The information from the input locale is used.
1265 * Prelinking support was added for ELF targets. This requires additional
1266 tools and recent versions of the GNU binutils. Contributed by Jakub Jelinek.
1268 * Read-only stdio streams now use mmap to speed up operation by eliminating
1269 copying and buffer underflows. To use add 'm' to the mode string of
1270 the fopen/fdopen/freopen call. Implemented by Ulrich Drepper.
1272 * The malloc functions were completely rewritten by Wolfram Gloger based
1273 on Doug Lea's malloc-2.7.0.c.
1275 * Isamu Hasegawa contributed a completely new and POSIX-conformant
1276 implementation of regex.
1278 * Bruno Haible upgraded the iconv and locale implementation to support
1281 * Contents of the LC_* and LANG environment variables in the CEN style are
1282 not recognized anymore. It never was used. Change by Ulrich Drepper.
1284 * The runtime (ld.so, libc, libpthread for Linux) now can handle the ELF
1285 thread-local storage (TLS) ABI on some platforms.
1286 Changes by Ulrich Drepper. SH support by Kaz Kojima.
1288 * Bruno Haible contributed iconv converters for ISO-2022-JP-3, SHIFT JIS-X0213,
1289 EUC-JISX0213, and TSCII.
1291 * New header <ifaddrs.h> with functions `getifaddrs' and `freeifaddrs':
1292 BSD-compatible interface for getting all network interface addresses.
1293 Implementation for IPv4 by Roland McGrath.
1295 * Loading of locale data is faster due to the introduction of a locale
1296 archive. Implemented by Roland McGrath and Ulrich Drepper.
1298 * Startup times are significantly reduced by not using exported functions
1299 inside the library itself. Changes by Jakub Jelinek, Roland McGrath,
1302 * Steven Munroe contributed a port to PowerPC64/Linux.
1306 * The Hurd now uses the GNU libio implementation of stdio rather than the
1307 old GNU stdio implementation, and uses a new ABI (libc.so.0.3).
1309 * The Hurd on x86 now has the `ioperm' function and <sys/io.h> header file
1310 with the same behavior as the Linux system call of the same name.
1314 * Stephen Moshier implemented log2, log10, powl and cbrtl for the
1315 128-bit long double format.
1317 * Masahide Washizawa contributed iconv modules for IBM1132, IBM1133, IBM1160,
1318 IBM1161, and IBM1162 charsets.
1320 * Andreas Jaeger contributed a port to x86-64/Linux.
1322 * Peter Bruin contributed a port to PowerPC/Hurd.
1324 * libc functions using I/O streams now can handle wide-oriented streams
1327 * optimizations in the dynamic linker. Binaries created by recent binutils
1328 versions start up quicker due to reduced time spent on relocations.
1330 * Support for use of gcc3 added by Jakub Jelinek and HJ Lu.
1334 * Stephen Moshier implemented cosh, expm1, log1p, acos, sinh, tanh,
1335 asinh, atanh, j0 for the 128-bit long double format.
1337 * Bruno Haible updated all the code handling Unicode in some form to
1338 support Unicode 3.1.
1340 * Speed of regex for single-byte locales is back to previous levels.
1341 Patch by Isamu Hasegawa.
1343 * Alpha, SPARC, and IA-64 now also using floating stacks.
1345 * Startup time of internationalized applications greatly improved through
1346 iconv cache. Use iconvconfig to generate the cache file.
1347 Contributed by Ulrich Drepper.
1349 * The IA-64 specific part of ld.so was rewritten to eliminate some pretty
1350 severe performance problems. Patch by David Mosberger.
1352 * The Hurd port got a lot more functionality like AIO, various stdio
1353 extensions, etc. Mainly done by Roland McGrath.
1355 * mtrace can now lookup symbols in shared libraries.
1359 * Intel's IA-64 math library is largely integrated. It provides fast and
1360 accurate implementatations for most basic and standard math functions
1361 in float, double, and long double format.
1363 * Stephen Moshier implemented j0, j1, jn, y0, y1, yn, lgamma, erf, erfc,
1364 and asin for the 96-bit long double format and asin, log, tan for the
1365 128-bit long double format.
1367 * The beginning of a last-bit accurate math library by IBM Haifa were added.
1368 The basic double functions exist today. Contributed by Abraham Ziv
1369 <ziv@il.ibm.com>, Moshe Olshansky <olshansk@il.ibm.com>, Ealan Henis
1370 <ealan@il.ibm.com>, and Anna Reitman <reitman@il.ibm.com>.
1372 * An asynchronous name lookup library was added. The interface is designed
1373 after POSIX AIO. The proposal was circulated beforehand to get comments.
1374 No negative ones came in. Implemented by Ulrich Drepper.
1376 * Port to S390/64bit contributed by Martin Schwidefsky
1377 <schwidefsky@de.ibm.com>.
1379 * David Mosberger <davidm@hpl.hp.com> implemented the setcontext family
1380 of functions for Linux/IA-64.
1382 * The RPC code is now thread safe. Threads can now use the same service
1383 of different services at the same time. Patch by Eric Norum
1384 <eric.norum@usask.ca> with some help by Ulrich Drepper.
1386 * Martin Schwidefsky <schwidefsky@de.ibm.com> implemented the setcontext
1387 family of functions for Linux/S390.
1389 * Ulrich Drepper <drepper@redhat.com> implemented the setcontext family
1390 of functions for Linux/x86.
1392 * Port to Linux/CRIS contributed by Axis Communications.
1396 * Lots of headers were cleaned up. Using the tool in the conform/ subdir
1397 we can now check for namespace violations and missing declarations. The
1398 result is that almost all headers are now Unix-compliant (as defined in
1399 the upcoming XPG6). The negative side is that some programs might need
1400 corrections, too, if they depend on the incorrect form of the headers in
1401 previous versions which defined too many symbols and included too many
1404 * regex now handles multibyte character sets correctly.
1405 Contributed by Isamu Hasegawa <isamu@yamato.ibm.com>.
1407 * iconv (the program) does now conform to the upcoming XPG6 and handles
1408 charmaps. Instead of the charset names the path of charmaps can be
1409 provided and the conversion happens based on this data.
1410 Contributed by Ulrich Drepper.
1412 * The locale program now provides detailed information about the installed
1417 only lists the names of the supported locales
1421 provides details such as country, language, and codeset name.
1422 Contributed by Ulrich Drepper.
1426 * The gencat program now parses the input file according to the charset
1427 selected by the LC_CTYPE category. This is important for stateful
1428 character sets. To make generating catalogs easier there is a way
1429 to overwrite the charset selected by the locale: before the first
1430 message or $ quote line the catalog can contain a line like
1432 $ codeset=ISO-8859-2
1434 to select the charset (ISO-8859-2 in this case).
1436 Implemented by Shinya Hanataka and Ulrich Drepper.
1438 * New codeset conversion modules: IBM-922 (Estonia PC codeset),
1439 IBM-1124 (Ukraine PC codeset), IBM-1129 (Vietnamese PC codeset).
1440 Contributed by Masahide Washizawa <washi@jp.ibm.com>.
1442 * Optimized string functions for Alpha ev6 and ev67 by Richard Henderson
1443 <rth@redhat.com> and Rick Gorton <rick.gorton@alpha-processor.com>.
1445 * The LANGUAGE environment variable is now ignored unless the locale is
1446 changed from the default "C" locale.
1448 * The usual bug fixes.
1452 * Greg McGary added runtime support for bounds checking using gcc's
1453 new -fbounded-pointers option. ix86 target is complete. PowerPC
1456 * Thorsten Kukuk added secure mode support to nscd.
1458 * The Berkeley db libraries have been removed.
1460 Related, the nss_db module is now in a separate package since it
1461 obviously requires a database library being available.
1463 * Wide character I/O streams implemented by Ulrich Drepper.
1465 * Functions from the extended socket API added by Ulrich Drepper.
1467 * Functions feenableexcept and fedisableexcept to control the
1468 behaviour of individual exceptions have been added by Andreas Jaeger.
1470 * ldconfig program added by Andreas Jaeger and Jakub Jelinek.
1472 * The resolver code has been updated from bind 8.2.3-T5B which supports
1473 threads. The integration was done by Andreas Jaeger, Adam D. Bradley,
1476 This change could in some situations effect backward compatibility. Since
1477 now `_res' is a thread-local instead of a global variable, modifying it
1478 in one thread does not have any effect in other threads.
1480 The resolver library was also extended to allow IPv6 as the transport
1481 protocol for the requests. This work was done by Stig Venaas.
1483 * Compatibility code for K&R C compilers has been removed from the
1484 header files. A ISO C compiler is needed to use the library
1485 (conforming to either C89 or C99 standard).
1487 * Complete rewrite of the localedef program to support multibyte character
1488 sets. Implement handling of ISO 14651 and ISO 14652. Rewrite strcoll,
1489 strxfrm, wcscoll, and wcsxfrm functions. Make isw*() functions work.
1490 Implemented by Ulrich Drepper.
1492 Bruno Haible significantly improved the generation and use of the data
1493 structures for the wide character tables.
1495 * Plural handling in gettext implemented by Ulrich Drepper.
1497 * The utmp daemon has been removed.
1499 * The port to MIPS-Linux has been finished by Andreas Jaeger.
1501 * A port to Hitachi SH3 and SH4 has been contributed by Kazumoto Kojima
1504 * POSIX clocks and timers implemented by Kaz Kylheku and Ulrich Drepper.
1506 * POSIX barriers implemented by Kaz Kylheku.
1508 * POSIX spawn function family implemented by Ulrich Drepper.
1510 * POSIX spinlocks are now available.
1512 * Timed wait functions for mutex, rwlock, and semaphores are implemented.
1514 * the configure option --enable-kernel=X.Y.Z allows to strip out
1515 compatibility for kernel versions before X.Y.Z. This is currently only
1516 implemented for Linux.
1518 * the sockaddr_in6 structure changed. The IPv6 working group added a new
1519 field sin6_scope_id. This means that all programs using IPv6 should be
1520 recompiled. Don't expect binary compatibility with previous glibc
1523 * various conversion modules for IBM character sets contributed by
1526 * IA-64 port by Jes Sorensen and HJ Lu.
1540 * New ISO C 9x function _Exit, imaxabs, and imaxdiv are added.
1542 * New xdr functions are added; some rpc functions are now 64bit clean.
1544 * Fixed a number of bugs and memory leaks (especially in NIS+ code).
1546 * Fixed known incompatibilities with glibc 2.0.
1548 * New functions lock64, strchrnul, rawmemchr, getutmp and getutmpx.
1550 * Optimized a number of functions (especially the ELF dynamic loader).
1552 * Update timezone data files.
1554 * lots of charmaps corrections
1556 * some new locale definitions and charmaps
1561 * Richard Henderson corrected size of struct timeval on Linux/Alpha to
1562 conform to POSIX member type requirements. Symbol versions have been
1563 adjusted as needed within the library, and for direct use by applications,
1564 but there is potential for problems if third-party libraries use
1565 struct timeval as part of their interface. This does not present
1566 a problem for X and other "essential" system libraries.
1568 * An additional locale model to support C++ Standard Library locale
1569 model and probably more was implemented by Ulrich Drepper.
1571 * Eric Youngdale and Ulrich Drepper implemented versioning of objects on
1574 * Miles Bader provided the `argp' function family to support hierachical
1575 command line argument parsing, layered on top of getopt.
1577 * strtod accepts new hexadecimal floating-point format from ISO C 9X.
1579 * printf has two new specifiers %a and %A to print hexadecimal flaoting-point
1582 * scanf recognizes the %a and %A format for scanning floating point numbers.
1584 * the new headers <stdint.h> and <inttypes.h> from ISO C 9X provides
1585 information and interfaces for the available integer types.
1587 * about 130 new math functions were added to implement the ISO C9x math
1590 * the new header <complex.h> contains definitions of the complex math
1591 functions from ISO C 9X.
1593 * the new header <tgmath.h> defines generic macros to use complex or
1594 real valued functions.
1596 * Thorsten Kukuk provided an implementation for NIS+, securelevel 0, 1 and 2.
1598 * Andreas Jaeger provided a test suite for the math library.
1600 * Mark Kettenis implemented the utmpx interface and an utmp daemon.
1602 * Ulrich Drepper added character set conversion functions (iconv).
1604 * Optimized string functions have been added.
1606 * The localedata addon is now part of glibc.
1608 * An implementation of profiling shared libraries was added by Ulrich Drepper.
1610 * Thorsten Kukuk and Ulrich Drepper provided an implementation for a caching
1611 daemon for NSS (nscd).
1613 Missing a better place here are some numbers on improvements. Under
1614 Linux 2.1.125 un-tar-ing the kernel sources takes
1618 using local files 12.19s 6.88s 22.91s
1620 using NIS 13.92s 8.91s 26.34s
1622 using NIS & nscd 10.37s 7.34s 25.30s
1624 using NIS+ 27.57s 30.37s 640.46s
1626 using NIS+ & nscd 10.25s 7.83s 26.51s
1628 using NIS & old nscd [1] 13.83s 8.32s 29.60s
1630 Keep in mind that non-namelookup related operations dominate above times.
1631 It was just a common complain that using NIS+ unpacking the kernel is
1634 [1] The old nscd implementation is not available anymore since it was
1635 distributed with glibc up to version 2.0.98 and thus is now replaced.
1637 * Tim Waugh provided an implementation of the POSIX.2 wordexp function family.
1639 * Mark Kettenis provided a Hesiod NSS module.
1641 * The ELF dynamic loader knows how to process dynamic string tokens ($ORIGIN
1642 and $PLATFORM) in RPATHs and similar strings (Ulrich Drepper).
1644 * rcmd can now handle netgroups (Dick Streefland).
1646 * A port to the ARM was contributed by Phil Blundell, Pat Beirne and Scott
1649 * Support for the IPv6 protocol has been added to the socket API, as per the
1650 latest draft standards.
1652 * Support for Linux 2.2 has been added.
1654 * Interface changes relative to the latest 2.0.x release:
1655 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1656 addseverity NEW: Unix98
1657 alphasort64 NEW: LFS
1658 argp_err_exit_status NEW: argp, GNU ext
1659 argp_error NEW: argp, GNU ext
1660 argp_failure NEW: argp, GNU ext
1661 argp_help NEW: argp, GNU ext
1662 argp_parse NEW: argp, GNU ext
1663 argp_program_bug_address NEW: argp, GNU ext
1664 argp_program_version NEW: argp, GNU ext
1665 argp_program_version_hook NEW: argp, GNU ext
1666 argp_state_help NEW: argp, GNU ext
1667 argp_usage NEW: argp, GNU ext
1668 authdes_create NEW: Secure RPC
1669 authdes_getucred NEW: Secure RPC
1670 authdes_pk_create NEW: Secure RPC
1671 backtrace NEW: GNU ext.
1672 backtrace_symbols NEW: GNU ext.
1673 backtrace_symbols_fd NEW: GNU ext.
1675 cacosf NEW: ISO C 9x
1676 cacosh NEW: ISO C 9x
1677 cacoshf NEW: ISO C 9x
1678 cacoshl NEW: ISO C 9x
1679 cacosl NEW: ISO C 9x
1686 casinf NEW: ISO C 9x
1687 casinh NEW: ISO C 9x
1688 casinhf NEW: ISO C 9x
1689 casinhl NEW: ISO C 9x
1690 casinl NEW: ISO C 9x
1692 catanf NEW: ISO C 9x
1693 catanh NEW: ISO C 9x
1694 catanhf NEW: ISO C 9x
1695 catanhl NEW: ISO C 9x
1696 catanl NEW: ISO C 9x
1697 cbc_crypt NEW: Secure RPC
1701 ccoshf NEW: ISO C 9x
1702 ccoshl NEW: ISO C 9x
1708 cimagf NEW: ISO C 9x
1709 cimagl NEW: ISO C 9x
1710 clearerr_locked REMOVED
1711 clntunix_create NEW: sunrpc ext
1713 clog10 NEW: ISO C 9x
1714 clog10f NEW: ISO C 9x
1715 clog10l NEW: ISO C 9x
1725 cprojf NEW: ISO C 9x
1726 cprojl NEW: ISO C 9x
1728 crealf NEW: ISO C 9x
1729 creall NEW: ISO C 9x
1734 csinhf NEW: ISO C 9x
1735 csinhl NEW: ISO C 9x
1738 csqrtf NEW: ISO C 9x
1739 csqrtl NEW: ISO C 9x
1743 ctanhf NEW: ISO C 9x
1744 ctanhl NEW: ISO C 9x
1746 des_setparity NEW: Secure RPC
1747 ecb_crypt NEW: Secure RPC
1748 endutxent NEW: Unix98
1750 exp10f NEW: ISO C 9x
1751 exp10l NEW: ISO C 9x
1755 fattach NEW: STREAMS
1756 fdetach NEW: STREAMS
1760 feclearexcept NEW: ISO C 9x
1761 fegetenv NEW: ISO C 9x
1762 fegetexceptflag NEW: ISO C 9x
1763 fegetround NEW: ISO C 9x
1764 feholdexcept NEW: ISO C 9x
1766 feraiseexcept NEW: ISO C 9x
1767 ferror_locked REMOVED
1768 fesetenv NEW: ISO C 9x
1769 fesetexceptflag NEW: ISO C 9x
1770 fesetround NEW: ISO C 9x
1771 fetestexcept NEW: ISO C 9x
1772 feupdateenv NEW: ISO C 9x
1773 fflush_locked REMOVED
1777 fgets_unlocked NEW: GNU ext.
1778 fileno_locked REMOVED
1790 fputc_locked REMOVED
1791 fputs_unlocked NEW: GNU ext.
1792 fread_unlocked NEW: GNU ext.
1797 fstatvfs NEW: Unix98
1801 ftruncate64 NEW: LFS
1803 fwrite_unlocked NEW: GNU ext.
1804 gai_strerror NEW: IPv6
1808 getchar_locked REMOVED
1810 getdate_err NEW: Unix98
1811 getdate_r NEW: GNU ext.
1813 getnameinfo NEW: IPv6
1814 getnetname NEW: Secure RPC
1815 getpmsg NEW: STREAMS
1816 getpt NEW: Unix98 PTY
1817 getrlimit64 NEW: LFS
1818 getutxent NEW: Unix98
1819 getutxid NEW: Unix98
1820 getutxline NEW: Unix98
1821 glob64 NEW: GNU ext.
1822 globfree64 NEW: GNU ext.
1823 gnu_get_libc_release NEW: GNU ext.
1824 gnu_get_libc_version NEW: GNU ext.
1825 grantpt NEW: Unix98 PTY
1826 host2netname NEW: Secure RPC
1828 iconv_close NEW: iconv
1829 iconv_open NEW: iconv
1830 if_freenameindex NEW: IPv6
1831 if_indextoname NEW: IPv6
1832 if_nameindex NEW: IPv6
1833 if_nametoindex NEW: IPv6
1834 in6addr_any NEW: IPv6
1835 in6addr_loopback NEW: IPv6
1836 inet6_isipv4mapped NEW: IPv6
1837 isastream NEW: STREAMS
1838 iswblank NEW: GNU ext.
1839 key_decryptsession NEW: Secure RPC
1840 key_decryptsession_pk NEW: Secure RPC
1841 key_encryptsession NEW: Secure RPC
1842 key_encryptsession_pk NEW: Secure RPC
1843 key_gendes NEW: Secure RPC
1844 key_get_conv NEW: Secure RPC
1845 key_secretkey_is_set NEW: Secure RPC
1846 key_setnet NEW: Secure RPC
1847 key_setsecret NEW: Secure RPC
1848 llrint NEW: ISO C 9x
1849 llrintf NEW: ISO C 9x
1850 llrintl NEW: ISO C 9x
1851 llround NEW: ISO C 9x
1852 llroundf NEW: ISO C 9x
1853 llroundl NEW: ISO C 9x
1858 lrintf NEW: ISO C 9x
1859 lrintl NEW: ISO C 9x
1860 lround NEW: ISO C 9x
1861 lroundf NEW: ISO C 9x
1862 lroundl NEW: ISO C 9x
1864 makecontext NEW: Unix98
1865 mempcpy NEW: GNU ext.
1868 modify_ldt NEW: kernel
1872 nearbyint NEW: ISO C 9x
1873 nearbyintf NEW: ISO C 9x
1874 nearbyintl NEW: ISO C 9x
1875 netname2host NEW: Secure RPC
1876 netname2user NEW: Secure RPC
1877 nexttoward NEW: ISO C 9x
1878 nexttowardf NEW: ISO C 9x
1879 nexttowardl NEW: ISO C 9x
1883 passwd2des NEW: Secure RPC
1885 pow10f NEW: GNU ext.
1886 pow10l NEW: GNU ext.
1889 printf_size NEW: GNU ext.
1890 printf_size_info NEW: GNU ext.
1891 profil_counter REMOVED
1892 pthread_mutexattr_getkind_np REPLACED
1893 pthread_mutexattr_setkind_np REPLACED
1894 ptsname NEW: Unix98 PTY
1895 ptsname_r NEW: Unix98 PTY
1897 putchar_locked REMOVED
1898 putgrent NEW: GNU ext.
1900 putpmsg NEW: STREAMS
1901 pututxline NEW: Unix98
1905 readdir64_r NEW: LFS
1906 remquo NEW: ISO C 9x
1907 remquof NEW: ISO C 9x
1908 remquol NEW: ISO C 9x
1910 roundf NEW: ISO C 9x
1911 roundl NEW: ISO C 9x
1913 scalbln NEW: ISO C 9x
1914 scalblnf NEW: ISO C 9x
1915 scalblnl NEW: ISO C 9x
1917 sendfile NEW: kernel
1918 setcontext NEW: Unix98
1919 setrlimit64 NEW: LFS
1920 setutxent NEW: Unix98
1922 sigignore NEW: Unix98
1923 sigqueue NEW: POSIX.1b
1924 sigrelse NEW: Unix98
1925 sigset NEW: POSIX.1b
1926 sigtimedwait NEW: POSIX.1b
1927 sigwaitinfo NEW: POSIX.1b
1928 sincos NEW: GNU ext.
1929 sincosf NEW: GNU ext.
1930 sincosl NEW: GNU ext.
1934 strcasestr NEW: GNU ext.
1935 strtoimax NEW: ISO C 9x
1936 strtoumax NEW: ISO C 9x
1937 strverscmp NEW: GNU ext.
1938 svcauthdes_stats NEW: Secure RPC
1939 svcunix_create NEW: sunrpc etx
1940 svcunixfd_create NEW: sunrpc ext
1941 swapcontext NEW: Unix98
1942 tcgetsid NEW: Unix98 PTY
1943 tdestroy NEW: GNU ext.
1944 tgamma NEW: ISO C 9x
1945 tgammaf NEW: ISO C 9x
1946 tgammal NEW: ISO C 9x
1950 truncf NEW: ISO C 9x
1951 truncl NEW: ISO C 9x
1953 unlockpt NEW: Unix98 PTY
1954 updwtmpx NEW: Unix98
1955 user2netname NEW: Secure RPC
1956 utmpxname NEW: Unix98
1957 versionsort NEW: GNU ext.
1958 versionsort64 NEW: GNU ext.
1960 wcscasecmp NEW: GNU ext.
1961 wcsncasecmp NEW: GNU ext.
1962 wcsnlen NEW: GNU ext.
1963 wcstoimax NEW: ISO C 9x
1964 wcstoll NEW: ISO C 9x
1965 wcstoull NEW: ISO C 9x
1966 wcstoumax NEW: ISO C 9x
1968 wordexp NEW: POSIX.2
1969 wordfree NEW: POSIX.2
1970 write_profiling REMOVED
1971 xdecrypt NEW: Secure RPC
1972 xdr_authdes_cred NEW: Secure RPC
1973 xdr_authdes_verf NEW: Secure RPC
1974 xdr_cryptkeyarg NEW: Secure RPC
1975 xdr_cryptkeyarg2 NEW: Secure RPC
1976 xdr_cryptkeyres NEW: Secure RPC
1977 xdr_getcredres NEW: Secure RPC
1978 xdr_key_netstarg NEW: Secure RPC
1979 xdr_key_netstres NEW: Secure RPC
1980 xdr_keybuf NEW: Secure RPC
1981 xdr_keystatus NEW: Secure RPC
1982 xdr_netnamestr NEW: Secure RPC
1983 xdr_sizeof NEW: Secure RPC
1984 xdr_unixcred NEW: sunrpc ext
1985 xencrypt NEW: Secure RPC
1986 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1997 * inet_ntoa is thread-safe
1999 * updwtmp is moved from libutil to libc
2001 * rewrite of cbrt function
2003 * update of timezone data
2017 * add atoll function
2019 * fix complex problems in Berkeley DB code
2021 * fix math functions
2025 * fixed lots of header problems (especially Linux/GNU specific)
2027 * dynamic loader preserves all registers
2029 * Roland McGrath provided support for handling of auxiliary objects in
2030 the ELF dynamic loader.
2032 * support for parallel builds is improved
2036 * GNU extensions are no longer declared by default. To enable them you
2037 must define the macro `_GNU_SOURCE' in your program or compile with
2040 * The library has changed from using GNU ld symbol aliases to using weak
2041 symbols where available. The ELF object file format supports weak
2042 symbols; GNU ld also supports weak symbols in the a.out format. (There
2043 is also now support for other GNU ld extensions in ELF. Use the
2044 `--with-elf' option to configure to indicate you have ELF, and
2045 `--with-gnu-ld' if using GNU ld.) This change resulted in the deletion
2046 of many files which contained only symbol aliases, reducing the size of
2047 the source and the compiled library; many other files were renamed to
2048 less cryptic names previously occupied by the symbol alias files.
2049 There is a new header file <elf.h> for programs which operate on
2050 files in the ELF format.
2052 * Converted to Autoconf version 2, so `configure' has more options.
2053 Run `configure --help' to see the details.
2055 * The library can now be configured to build profiling, highly-optimized
2056 (but undebuggable), and/or shared libraries (ELF with GNU ld only). The
2057 `--enable-profile', `--enable-omitfp', and `--enable-shared' options to
2058 `configure' enable building these extra libraries. The shared library is
2059 built by default when using both ELF and GNU ld. When shared libraries
2060 are enabled, the new library `-ldl' is available for arbitrary run-time
2061 loading of shared objects; its interface is defined in <dlfcn.h>. The
2062 new header file <link.h> gives access to the internals of the run-time
2063 dynamic linker, `ld.so'. The shell script `ldd' is similar to the
2064 application of same name on other systems and it provides information
2065 about dynamically linked binaries.
2067 * The C library now provides the run-time support code for profiling
2068 executables compiled with `-pg'. Programs can control the profiling code
2069 through the interface in <sys/gmon.h>. The `gmon.out' files written by
2070 the GNU C library can be read only by GNU `gprof' (from GNU binutils);
2071 the support for this file format was contributed by David Mosberger-Tang.
2073 * The math code has been replaced with a math library based on fdlibm from
2074 Sun, and modified by JT Conklin and Ulrich Drepper with i387 support, by
2075 Ian Taylor with `float' functions and by Ulrich Drepper with `long double'
2076 functions. The math functions now reside in a separate library, so
2077 programs using them will need to use `-lm' their linking commands.
2079 * John C. Bowman contributed optimized ix87 assembler inline functions.
2081 * Ulrich Drepper has contributed support for an `/etc/nsswitch.conf'
2082 mechanism similar to that found in Solaris 2. This is now used for the
2083 group, passwd, hosts, networks, services, protocols, rpc, ethers,
2084 shadow, netgroup, publickey, and alias databases. The `nsswitch.conf'
2085 file controls what services are used for each individual database. This
2086 works by loading shared libraries with names specified in `nsswitch.conf',
2087 so service modules can be changed or added at any time without even
2088 relinking any program. Currently there are the file, db, and NIS based
2089 NSS services available.
2091 * The new functions `strtoq' and `strtouq' parse integer values from
2092 strings, like `strtol' and `strtoul', but they return `long long int' and
2093 `unsigned long long int' values, respectively (64-bit quantities).
2095 * The new functions `strtof' and `strtold' parse floating-point values from
2096 strings, like `strtod', but they return `float' and `long double' values,
2097 respectively (on some machines `double' and `long double' are the same).
2099 * Ulrich Drepper has contributed new implementations of the floating-point
2100 printing and reading code used in the `printf' family of functions and
2101 `strtod', `strtof', and `strtold'. These new functions are perfectly
2102 accurate, and much faster than the old ones.
2104 * The implementation of the POSIX locale model was completely rewritten by
2105 Ulrich Drepper. This includes the new programs `localedef' and `locale'
2106 to compile the POSIX locale definition.
2108 * The former dummy implementations of the strcoll and strxfrm function are
2109 now replaced by fully functional code contributed by Ulrich Drepper. The
2110 collation information comes from the POSIX locale definitions.
2112 * The new header <langinfo.h> defines an interface for accessing
2113 various locale-dependent data (using the locale chosen with `setlocale').
2115 * Ulrich Drepper has contributed a new suite of functions for operation on
2116 wide-character and multibyte-character strings, in <wchar.h>;
2117 and classification and case conversion of wide characters, in <wctype.h>.
2118 These new functions are conforming to the ISO C, Amendement 1 specification.
2120 * There is now a second implementation of the standard I/O library available.
2121 It comes from GNU libg++ as was written by Per Bothner, heavily modified
2122 by Hongjiu Lu and made thread safe by Ulrich Drepper.
2124 * You can now use positional parameter specifications in format strings
2125 for the `printf' and `scanf' families of functions. For example,
2126 `printf ("Number %2$d, Mr %1$s\n", "Jones", 6);'' prints
2127 ``Number 6, Mr Jones''. This is mainly useful when providing different
2128 format strings for different languages, whose grammars may dictate
2129 different orderings of the values being printed. To support this
2130 feature, the interface for `register_printf_handler' has changed; see
2131 the header file <printf.h> for details.
2133 * The `printf' and `scanf' families of functions now understand a new
2134 formatting flag for numeric conversions: the ' flag (e.g. %'d or %'f) says
2135 to group numbers as indicated by the locale; for `scanf' and friends, this
2136 says to accept as valid only a number with all the proper grouping
2137 separators in the right places. In the default "C" locale, numbers are
2138 not grouped; but locales for specific countries will define the usual
2139 conventions (i.e. separate thousands with `,' in the US locale).
2141 * The pgrp functions have been regularized, slightly incompatibly but much
2142 less confusingly. The core functions are now `getpgid' and `setpgid',
2143 which take arguments for the PID to operate on; the POSIX.1 `getpgrp' (no
2144 argument) and BSD `setpgrp' (identical to `setpgid') functions are
2145 provided for compatibility. There is no longer an incompatible `getpgrp'
2146 with an argument declared under _BSD_SOURCE; no BSD code uses it.
2148 * The new header file <fts.h> and suite of functions simplify programs that
2149 operate on directory trees. This code comes from 4.4 BSD.
2151 * The resolver code has been updated from the BIND 4.9.5-P1 release.
2152 Parts of the code were heavily modified by Ulrich Drepper to fit in the
2153 NSS scheme used in glibc.
2155 * There is a new malloc debugging hook `__memalign_hook'.
2157 * There are new typedefs `ushort' for `unsigned short int' and `uint' for
2158 `unsigned int' in <sys/types.h>. These are for compatibility only and
2159 their use is discouraged.
2161 * The `-lmcheck' library to enable standard malloc debugging hooks is now
2162 done differently, so that it works even without GNU ld.
2164 * New function `euidaccess' checks allowed access to a file like `access',
2165 but using the effective IDs instead of the real IDs.
2167 * The time zone data files have been updated for the latest and greatest
2168 local time conventions of the countries of the world.
2170 * The new function `dirfd' extracts the file descriptor used by a DIR stream;
2173 * The new functions `ecvt', `fcvt', and `gcvt' provide an obsolete interface
2174 for formatting floating-point numbers. They are provided only for
2175 compatibility; new programs should use `sprintf' instead. There are
2176 also equivalent function for the `long double' floating-point type and
2177 all functions also exist in a reentrant form.
2179 * The new auxiliary library `-lutil' from 4.4 BSD contains various
2180 functions for maintaining the login-record files (primarily of use to
2181 system programs such as `login'), and convenient functions for
2182 allocating and initializing a pseudo-terminal (pty) device.
2184 * Ulrich Drepper has contributed new support for System V style
2185 shared memory and IPC on systems that support it.
2187 * Ulrich Drepper has contributed several miscellaneous new functions found
2188 in System V: The `hsearch' family of functions provide an effective
2189 implementation of hash tables; `a64l' and `l64a' provide a very simple
2190 binary to ASCII mapping; `drand48' and friends provide a 48-bit random
2193 * Ulrich Drepper has contributed new reentrant counterparts for the
2194 `random' and `hsearch' families of functions; `random_r', `hsearch_r', etc.
2196 * Ulrich Drepper has contributed new, highly-optimized versions of several
2197 string functions for the i486/Pentium family of processors.
2199 * Ulrich Drepper has updated the Linux-specific code, based largely
2200 on work done in Hongjiu Lu's version of GNU libc for Linux.
2201 The GNU library now supports Linux versions 2.0.10 and later,
2202 using the ELF object file format (i[3456]86-*-linux).
2204 * Andreas Schwab has ported the C library to Linux/m68k (m68k-*-linux).
2206 * David Mosberger-Tang and Richard Henderson have ported the C library
2207 to Linux/Alpha (alpha-*-linux). Richard Henderson contributed the
2208 dynamic linking support for ELF/Alpha.
2210 * Richard Henderson contributed several Alpha optimized assembler function
2211 for arithmetic and string handling.
2213 * Ulrich Drepper has contributed a new set of message catalog functions to
2214 support multiple languages using the <libintl.h> interface, for use with
2215 his new package GNU gettext. Translation volunteers have contributed
2216 catalogs of the library's messages in Spanish, German, and Korean.
2218 * For compatibility with XPG4, Ulrich Drepper has contributed the `gencat'
2219 program and the `catgets' function for reading the catalog files it
2220 creates. (The <libintl.h> interface is preferred; we include the
2221 <nl_types.h> interface using `catgets' only for source compatibility with
2222 programs already written to use it.)
2224 * New header file <values.h> gives SVID-compatible names for <limits.h>
2227 * Various new macros, declarations, and small header files for compatibility
2230 * New function `group_member' is a convenient way to check if a process has
2231 a given effective group ID.
2233 * When using GCC 2.7 and later, the socket functions are now declared in a
2234 special way so that passing an argument of type `struct sockaddr_in *',
2235 `struct sockaddr_ns *', or `struct sockaddr_un *' instead of the generic
2236 `struct sockaddr *' type, does not generate a type-clash warning.
2238 * New function `error' declared in header file <error.h> is a convenient
2239 function for printing error messages and optionally exiting; this is the
2240 canonical function used in GNU programs. The new functions `err', `warn',
2241 and friends in header file <err.h> are the canonical 4.4 BSD interface for
2242 doing the same thing.
2244 * The <glob.h> interface has several new flags from 4.4 BSD that extend the
2245 POSIX.2 `glob' function to do ~ and {...} expansion.
2247 * New function `unsetenv' complements `setenv' for compatibility with 4.4 BSD.
2248 `clearenv' which is used in POSIX.9 is also available.
2250 * New function `getsid' returns session ID number on systems that support it.
2252 * We have incorporated the 4.4 BSD `db' library (version 1.85). New header
2253 files <db.h> and <mpool.h> provide a rich set of functions for several
2254 types of simple databases stored in memory and in files, and <ndbm.h> is
2255 an old `ndbm'-compatible interface using the `db' functions. Link with
2256 `-ldb' to get these functions.
2258 * New macro `strdupa' copies a string like `strdup', but uses local stack
2259 space from `alloca' instead of dynamic heap space from `malloc'.
2261 * New function `strnlen' is like `strlen' but searches only a given maximum
2262 number of characters for the null terminator. `stpncpy', `strndup' and
2263 `strndupa' are similar variants for the `stpcpy', `strdup' and `strdupa'
2266 * New function `statfs' in header <sys/statfs.h>.
2268 * The new <argz.h> and <envz.h> interfaces contributed by Miles Bader
2269 provide convenient functions for operating on blocks of null-terminated
2272 * A new suite of functions in <utmp.h> handle all the details of reading
2273 and writing the utmp file.
2275 * An implementation of the NIS/YP(tm) based NSS service was contributed by
2278 * Paul Eggert and Ulrich Drepper modified the `strftime' function to be
2279 completely POSIX compliant and also implemented the extended functionality
2280 to handle alternate digit representation and alternate era date formats.
2282 * Ulrich Drepper provided an implementation of the `strptime' function
2283 defined in XPG4.2 which transforms a string into a `struct tm' value.
2285 * Paul Eggert provided the tzselect shell script as part of the timezone
2286 code. The shell script makes it easy to select the correct timezone
2289 * The implementation of the malloc family of functions is completely replaced
2290 by a new implementation by Doug Lea with many improvements by Wolfram Gloger.
2291 The implementation uses the mmap function (if available) and it is
2292 optimized for the use in multi threaded programs.
2294 * Ulrich Drepper contributed a MD5 "encryption" for the crypt family of
2295 functions. This new functionality is usable by specifying a special
2296 salt string and it is compatible with implementation on *BSD systems.
2298 * Lots of functions from the XPG4.2 standard were added by Ulrich Drepper:
2299 `getsubopt' to handle second level command line options, `bsd_signal'
2300 to access BSD style `signal' functionality, the obsolete `regexp' style
2303 * the `lchown' function is available on system which support this
2306 * The implementation of the shadow password handling function was contributed
2309 * David Mosberger-Tang changed the SunRPC implementation to be 64bit safe.
2311 * POSIX.1g support was added. The <sys/select.h> header is available,
2312 `isfdtype' and `pselect' are implemented. Craig Metz contributed an
2313 implementation of `getaddrinfo'.
2317 * For cross-compilation you should now set `BUILD_CC' instead of `HOST_CC'.
2319 * New header file <fstab.h> and new functions `getfsspec', `getfsent' and
2320 friends, for parsing /etc/fstab. This code comes from 4.4 BSD.
2322 * The new function `daemon' from 4.4 BSD is useful for server programs that
2323 want to put themselves in the background.
2325 * Joel Sherrill has contributed support for several standalone boards that
2326 run without an operating system.
2328 * `printf', `scanf' and friends now accept a `q' type modifier for long
2329 long int as well as `ll'. Formats using these might be `%qu' or `%lld'.
2331 * All of the code taken from BSD (notably most of the math and networking
2332 routines) has been updated from the BSD 4.4-Lite release.
2334 * The resolver code has been updated from the BIND-4.9.3-BETA9 release.
2336 * The new functions `getdomainname' and `setdomainname' fetch or change the
2337 YP/NIS domain name. These are system calls which exist on systems which
2340 * The time zone data files have been updated for the latest international
2343 * The SunRPC programs `portmap' and `rpcinfo' are now installed in
2344 $(sbindir) (usually /usr/local/sbin) instead of $(bindir).
2348 * The C library now includes support for Sun RPC, from Sun's free
2349 RPCSRC-4.0 distribution. The `portmap', `rpcinfo', and `rpcgen' programs
2350 are included. (There is still no support for YP.)
2352 * Tom Quinn has contributed a port of the C library to SGI machines running
2353 Irix 4 (mips-sgi-irix4).
2355 * The new `lockf' function is a simplified interface to the locking
2356 facilities of `fcntl', included for compatibility.
2358 * New time functions `timegm', `timelocal', and `dysize' for compatibility.
2360 * New header file <sys/timeb.h> and new function `ftime' for compatibility.
2362 * New header files <poll.h> and <sys/poll.h> and new function `poll' for
2365 * The error message printed by `assert' for a failed assertion now includes
2366 the name of the program (if using GNU ld) and the name of the calling
2367 function (with versions of GCC that support this).
2369 * The `psignal' function is now declared in <signal.h>, not <stdio.h>.
2371 * The library now includes the <sys/mman.h> header file and memory
2372 management functions `mmap', `munmap', `mprotect', `msync', and
2373 `madvise', on systems that support those facilities.
2375 * The interface for `mcheck' has changed slightly: the function called to
2376 abort the program when an allocation inconsistency is detected now takes
2377 an argument that indicates the type of failure. The new function
2378 `mprobe' lets you request a consistency check for a particular block at
2379 any time (checks are normally done only when you call `free' or `realloc'
2382 * It is now possible to easily cross-compile the C library, building on one
2383 system a library to run on another machine and/or operating system. All
2384 you need to do is set the variable `HOST_CC' in `configparms' to the
2385 native compiler for programs to run on the machine you are building on (a
2386 few generator programs are used on Unix systems); set `CC' to the
2389 * The new function `fexecve' (only implemented on the GNU system) executes
2390 a program file given a file descriptor already open on the file.
2394 * Brendan Kehoe has contributed most of a port to the DEC Alpha
2395 running OSF/1 (alpha-dec-osf1). He says it is 75% complete.
2397 * You can set the variable `libprefix' in `configparms' to specify a prefix
2398 to be prepended to installed library files; this makes it easy to install
2399 the GNU C library to be linked as `-lgnuc' or whatever.
2401 * The new `stpncpy' is a cross between `stpcpy' and `strncpy': It
2402 copies a limited number of characters from a string, and returns the
2403 address of the last character written.
2405 * You no longer need to check for whether the installed `stddef.h' is
2406 compatible with the GNU C library. configure now checks for you.
2408 * You can now define a per-stream `fileno' function to convert the
2409 stream's cookie into an integral file descriptor.
2411 * ``malloc (0)'' no longer returns a null pointer. Instead, it
2412 allocates zero bytes of storage, and returns a unique pointer which
2413 you can pass to `realloc' or `free'. The behavior is undefined if
2414 you dereference this pointer.
2416 * The C library now runs on Sony NEWS m68k machines running either
2417 NewsOS 3 or NewsOS 4.
2419 * The new `syscall' function is a system-dependent primitive function
2420 for invoking system calls. It has the canonical behavior on Unix
2421 systems, including unreliable return values for some calls (such as
2422 `pipe', `fork' and `getppid').
2424 * The error code `EWOULDBLOCK' is now obsolete; it is always defined
2425 to `EAGAIN', which is the preferred name. On systems whose kernels
2426 use two distinct codes, the C library now translates EWOULDBLOCK to
2427 EAGAIN in every system call function.
2431 * The GNU C Library Reference Manual is now distributed with the library.
2432 `make dvi' will produce a DVI file of the printed manual.
2433 `make info' will produce Info files that you can read on line using C-h i
2434 in Emacs or the `info' program.
2435 Please send comments on the manual to bug-glibc-manual@gnu.org.
2437 * The library now supports SVR4 on i386s (i386-unknown-sysv4).
2439 * Brendan Kehoe has contributed a port to Sun SPARCs running Solaris 2.
2441 * Jason Merrill has contributed a port to the Sequent Symmetry running
2442 Dynix version 3 (i386-sequent-dynix).
2444 * The library has been ported to i386s running SCO 3.2.4 (also known as SCO
2445 ODT 2.0; i386-unknown-sco3.2.4) or SCO 3.2 (i386-unknown-sco3.2).
2447 * New function `memory_warnings' lets you arrange to get warnings when
2448 malloc is running out of memory to allocate, like Emacs gives you.
2450 * The C library now contains the relocating allocator used in Emacs 19 for
2451 its editing buffers. This allocator (ralloc) minimizes allocation
2452 overhead and fragmentation by moving allocated regions around whenever it
2453 needs to. You always refer to a ralloc'd region with a "handle" (a
2454 pointer to a pointer--an object of type `void **').
2456 * There is a new `printf' format: `%m' gives you the string corresponding
2457 to the error code in `errno'.
2459 * In `scanf' formats, you can now use `%as' or `%a[' to do the normal `%s'
2460 or `%[' conversion, but instead of filling in a fixed-sized buffer you
2461 pass, the `a' modifier says to fill in a `char **' you pass with a
2464 * The `fnmatch' function supports the new flag bits `FNM_LEADING_DIR' and
2465 `FNM_CASEFOLD'. `FNM_LEADING_DIR' lets a pattern like `foo*' match a
2466 name like `foo/bar'. `FNM_CASEFOLD' says to ignore case in matching.
2468 * `mkstemp' is a traditional Unix function to atomically create and open a
2469 uniquely-named temporary file.
2473 * The standard location for the file that says what the local timezone is
2474 has changed again. It is now `/usr/local/etc/localtime' (or more
2475 precisely, `${prefix}/etc/localtime') rather than `/etc/localtime'.
2477 * The distribution no longer contains any files with names longer than 14
2480 * `struct ttyent' has two new flag bits: TTY_TRUSTED and TTY_CONSOLE.
2481 These are set by the new `trusted' and `console' keywords in `/etc/ttys'.
2483 * New functions `ttyslot' and `syslog' from 4.4 BSD.
2487 * The configuration process has changed quite a bit. The `configure'
2488 script is now used just like the configuration scripts for other GNU
2489 packages. The `sysdeps' directory hierarchy is much rearranged.
2490 The file `INSTALL' explains the new scheme in detail.
2492 * The header files no longer need to be processed into ANSI C and
2493 traditional C versions. There is just one set of files to install, and
2494 it will work with ANSI or old C compilers (including `gcc -traditional').
2496 * Brendan Kehoe and Ian Lance Taylor have ported the library to the
2497 MIPS DECStation running Ultrix 4.
2499 * The Sun 4 startup code (crt0) can now properly load SunOS 4 shared libraries.
2500 Tom Quinn contributed the initial code. The GNU C library can NOT yet be
2501 made itself into a shared library.
2503 * Yet further improved support for the i386, running 4.3 BSD-like systems
2504 (such as Mach 3 with the Unix single-server), or System V.
2506 * New function `strncasecmp' to do case-insensitive string comparison
2507 with limited length.
2509 * New function `strsep' is a reentrant alternative to `strtok'.
2511 * New functions `scandir' and `alphasort' for searching directories.
2513 * New function `setenv' is a better interface to `putenv'.
2515 * Ian Lance Taylor has contributed an implementation of the SVID `ftw'
2516 function for traversing a directory tree.
2518 * The GNU obstack package is now also part of the C library.
2519 The new function `open_obstack_stream' creates a stdio stream that
2520 writes onto an obstack; `obstack_printf' and `obstack_vprintf' do
2521 formatted output directly to an obstack.
2523 * Miscellaneous new functions: reboot, nice, sigaltstack (4.4 BSD only),
2524 cfmakeraw, getusershell, getpass, swab, getttyent, seteuid, setegid.
2526 * `FNM_FILE_NAME' is another name for `FNM_PATHNAME', used with `fnmatch'.
2528 * The new functions `strfry' and `memfrob' do mysterious and wonderful
2529 things to your strings.
2531 * There are some new test programs: test-fseek, testmb, and testrand.
2533 * Some work has been done to begin porting the library to 4.4 BSD and Linux.
2534 These ports are not finished, but are a good starting place for really
2535 supporting those systems.
2537 * `/etc/localtime' is now the standard location for the file that says what
2538 the local timezone is, rather than `/usr/local/lib/zoneinfo/localtime'.
2539 This follows the general principle that `/etc' is the place for all local
2540 configuration files.
2542 * The C library header files now use `extern "C"' when used by the C++
2543 compiler, so the C library should now work with C++ code.
2545 * The header file <bstring.h> is gone. <string.h> now declares bcopy,
2546 bcmp, bzero, and ffs. (Update: nowadays these functions are declared
2549 * Mike Haertel (of GNU e?grep and malloc fame) has written a new sorting
2550 function which uses the `merge sort' algorithm, and is said to be
2551 significantly faster than the old GNU `qsort' function. Merge sort is
2552 now the standard `qsort' function. The new algorithm can require a lot
2553 of temporary storage; so, the old sorting function is called when the
2554 required storage is not available.
2556 * The C library now includes Michael Glad's Ultra Fast Crypt, which
2557 provides the Unix `crypt' function, plus some other entry points.
2559 * The code and header files taken from 4.4 BSD have been updated with the
2560 latest files released from Berkeley.
2562 ----------------------------------------------------------------------
2563 Copyright information:
2565 Copyright (C) 1992-2014 Free Software Foundation, Inc.
2567 Permission is granted to anyone to make or distribute verbatim copies
2568 of this document as received, in any medium, provided that the
2569 copyright notice and this permission notice are preserved,
2570 thus giving the recipient permission to redistribute in turn.
2572 Permission is granted to distribute modified versions
2573 of this document, or of portions of it,
2574 under the above conditions, provided also that they
2575 carry prominent notices stating who last changed them.
2578 version-control: never
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