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.
19 * CVE-2104-7817 The wordexp function could ignore the WRDE_NOCMD flag
20 under certain input conditions resulting in the execution of a shell for
21 command substitution when the applicaiton did not request it. The
22 implementation now checks WRDE_NOCMD immediately before executing the
23 shell and returns the error WRDE_CMDSUB as expected.
25 * CVE-2012-3406 printf-style functions could run into a stack overflow when
26 processing format strings with a large number of format specifiers.
28 * The nss_dns implementation of getnetbyname could run into an infinite loop
29 if the DNS response contained a PTR record of an unexpected format.
31 * The minimum GCC version that can be used to build this version of the GNU
32 C Library is GCC 4.6. Older GCC versions, and non-GNU compilers, can
33 still be used to compile programs using the GNU C Library.
35 * The GNU C Library is now built with -Werror by default. This can be
36 disabled by configuring with --disable-werror.
38 * New locales: tu_IN, bh_IN, raj_IN, ce_RU.
40 * The obsolete sigvec function has been removed. This was the original
41 4.2BSD interface that inspired the POSIX.1 sigaction interface, which
42 programs have been using instead for about 25 years. Of course, ABI
43 compatibility for old binaries using sigvec remains intact.
45 * Merged gettext 0.19.3 into the intl subdirectory. This fixes building
46 with newer versions of bison.
50 * The following bugs are resolved with this release:
52 6804, 9894, 12994, 13347, 13651, 14308, 14770, 15119, 15132, 15347, 15514,
53 15698, 15804, 15894, 15946, 16002, 16064, 16095, 16194, 16198, 16275,
54 16284, 16287, 16315, 16348, 16349, 16354, 16357, 16362, 16447, 16516,
55 16532, 16539, 16545, 16561, 16562, 16564, 16574, 16599, 16600, 16609,
56 16610, 16611, 16613, 16619, 16623, 16629, 16632, 16634, 16639, 16642,
57 16648, 16649, 16670, 16674, 16677, 16680, 16681, 16683, 16689, 16695,
58 16701, 16706, 16707, 16712, 16713, 16714, 16724, 16731, 16739, 16740,
59 16743, 16754, 16758, 16759, 16760, 16770, 16786, 16789, 16791, 16796,
60 16799, 16800, 16815, 16823, 16824, 16831, 16838, 16839, 16849, 16854,
61 16876, 16877, 16878, 16882, 16885, 16888, 16890, 16892, 16912, 16915,
62 16916, 16917, 16918, 16922, 16927, 16928, 16932, 16943, 16958, 16965,
63 16966, 16967, 16977, 16978, 16984, 16990, 16996, 17009, 17022, 17031,
64 17042, 17048, 17050, 17058, 17061, 17062, 17069, 17075, 17078, 17079,
65 17084, 17086, 17088, 17092, 17097, 17125, 17135, 17137, 17150, 17153,
66 17187, 17213, 17259, 17261, 17262, 17263, 17319, 17325, 17354.
68 * Optimized strchrnul implementation for AArch64. Contributed by ARM Ltd.
70 * Reverted change of ABI data structures for s390 and s390x:
71 On s390 and s390x the size of struct ucontext and jmp_buf was increased in
72 2.19. This change is reverted in 2.20. The introduced 2.19 symbol versions
73 of getcontext, setjmp, _setjmp, __sigsetjmp, longjmp, _longjmp, siglongjmp
74 are preserved pointing straight to the same implementation as the old ones.
75 Given that, new callers will simply provide a too-big buffer to these
76 functions. Any applications/libraries out there that embed jmp_buf or
77 ucontext_t in an ABI-relevant data structure that have already been rebuilt
78 against 2.19 headers will have to rebuilt again. This is necessary in any
79 case to revert the breakage in their ABI caused by the glibc change.
81 * Support for file description locks is added to systems running the
82 Linux kernel. The standard file locking interfaces are extended to
83 operate on file descriptions, not file descriptors, via the use of
84 F_OFD_GETLK, F_OFD_SETLK, and F_OFD_SETLKW. File description locks
85 are associated with an open file instead of a process.
87 * Optimized strchr implementation for AArch64. Contributed by ARM Ltd.
89 * The minimum Linux kernel version that this version of the GNU C Library
90 can be used with is 2.6.32.
92 * Running the testsuite no longer terminates as soon as a test fails.
93 Instead, a file tests.sum (xtests.sum from "make xcheck") is generated,
94 with PASS or FAIL lines for individual tests. A summary of the results is
95 printed, including a list of failing lists, and "make check" exits with
96 error status if there were any unexpected failures. "make check
97 stop-on-test-failure=y" may be used to keep the old behavior.
99 * The am33 port, which had not worked for several years, has been removed
102 * The _BSD_SOURCE and _SVID_SOURCE feature test macros are no longer
103 supported; they now act the same as _DEFAULT_SOURCE (but generate a
104 warning). Except for cases where _BSD_SOURCE enabled BSD interfaces that
105 conflicted with POSIX (support for which was removed in 2.19), the
106 interfaces those macros enabled remain available when compiling with
107 _GNU_SOURCE defined, with _DEFAULT_SOURCE defined, or without any feature
110 * Optimized strcmp implementation for ARMv7. Contributed by ARM Ltd.
112 * Added support for TX lock elision of pthread mutexes on s390 and s390x.
113 This may improve lock scaling of existing programs on TX capable systems.
114 The lock elision code is only built with --enable-lock-elision=yes and
115 then requires a GCC version supporting the TX builtins. With lock elision
116 default mutexes are elided via __builtin_tbegin, if the cpu supports
117 transactions. By default lock elision is not enabled and the elision code
120 * CVE-2014-4043 The posix_spawn_file_actions_addopen implementation did not
121 copy the path argument. This allowed programs to cause posix_spawn to
122 deference a dangling pointer, or use an unexpected pathname argument if
123 the string was modified after the posix_spawn_file_actions_addopen
126 * All supported architectures now use the main glibc sysdeps directory
127 instead of some being in a separate "ports" directory (which was
128 distributed separately before glibc 2.17).
130 * The NPTL implementation of POSIX pthreads is no longer an "add-on".
131 On configurations that support it (all Linux configurations), it's now
132 used regardless of the --enable-add-ons switch to configure. It is no
133 longer possible to build such configurations without pthreads support.
135 * Locale names, including those obtained from environment variables (LANG
136 and the LC_* variables), are more tightly checked for proper syntax.
137 setlocale will now fail (with EINVAL) for locale names that are overly
138 long, contain slashes without starting with a slash, or contain ".." path
139 components. (CVE-2014-0475) Previously, some valid locale names were
140 silently replaced with the "C" locale when running in AT_SECURE mode
141 (e.g., in a SUID program). This is no longer necessary because of the
144 * On x86-64, the dynamic linker's lazy-binding support is now compatible
145 with application code using Intel MPX instructions. (With all previous
146 versions, the MPX register state could be clobbered when making calls
147 into or out of a shared library.) Note that while the new dynamic
148 linker is compatible with all known x86 hardware whether or not it
149 supports Intel MPX, some x86 instruction-set emulators might fail to
150 handle the new instruction encodings. This is known to affect Valgrind
151 versions up through 3.9 (but will be fixed in the forthcoming 3.10
152 release), and might affect other tools that do instruction emulation.
154 * Support for loadable gconv transliteration modules has been removed.
155 The support for transliteration modules has been non-functional for
156 over a decade, and the removal is prompted by security defects. The
157 normal gconv conversion modules are still supported. Transliteration
158 with //TRANSLIT is still possible, and the //IGNORE specifier
159 continues to be supported. (CVE-2014-5119)
161 * Decoding a crafted input sequence in the character sets IBM933, IBM935,
162 IBM937, IBM939, IBM1364 could result in an out-of-bounds array read,
163 resulting a denial-of-service security vulnerability in applications which
164 use functions related to iconv. (CVE-2014-6040)
168 * The following bugs are resolved with this release:
170 156, 387, 431, 762, 832, 926, 2801, 4772, 6786, 6787, 6807, 6810, 6981,
171 7003, 9721, 9954, 10253, 10278, 11087, 11157, 11214, 12100, 12486, 12751,
172 12986, 13028, 13982, 13985, 14029, 14032, 14120, 14143, 14155, 14286,
173 14547, 14699, 14752, 14782, 14876, 14910, 15004, 15048, 15073, 15089,
174 15128, 15218, 15268, 15277, 15308, 15362, 15374, 15400, 15425, 15427,
175 15483, 15522, 15531, 15532, 15593, 15601, 15608, 15609, 15610, 15632,
176 15640, 15670, 15672, 15680, 15681, 15723, 15734, 15735, 15736, 15748,
177 15749, 15754, 15760, 15763, 15764, 15797, 15799, 15825, 15843, 15844,
178 15846, 15847, 15849, 15850, 15855, 15856, 15857, 15859, 15867, 15886,
179 15887, 15890, 15892, 15893, 15895, 15897, 15901, 15905, 15909, 15915,
180 15917, 15919, 15921, 15923, 15939, 15941, 15948, 15963, 15966, 15968,
181 15985, 15988, 15997, 16032, 16034, 16036, 16037, 16038, 16041, 16046,
182 16055, 16071, 16072, 16074, 16077, 16078, 16103, 16112, 16143, 16144,
183 16146, 16150, 16151, 16153, 16167, 16169, 16172, 16195, 16214, 16245,
184 16271, 16274, 16283, 16289, 16293, 16314, 16316, 16330, 16337, 16338,
185 16356, 16365, 16366, 16369, 16372, 16375, 16379, 16381, 16384, 16385,
186 16386, 16387, 16390, 16394, 16398, 16400, 16407, 16408, 16414, 16430,
187 16431, 16453, 16474, 16506, 16510, 16529
189 * Slovenian translations for glibc messages have been contributed by the
190 Translation Project's Slovenian team of translators.
192 * The public headers no longer use __unused nor __block. This change is to
193 support compiling programs that are derived from BSD sources and use
194 __unused internally, and to support compiling with Clang's -fblock
195 extension which uses __block.
197 * CVE-2012-4412 The strcoll implementation caches indices and rules for
198 large collation sequences to optimize multiple passes. This cache
199 computation may overflow for large collation sequences and may cause a
200 stack or buffer overflow. This is now fixed to use a slower algorithm
201 which does not use a cache if there is an integer overflow.
203 * CVE-2012-4424 The strcoll implementation uses malloc to cache indices and
204 rules for large collation sequences to optimize multiple passes and falls
205 back to alloca if malloc fails, resulting in a possible stack overflow.
206 The implementation now falls back to an uncached collation sequence lookup
209 * CVE-2013-4788 The pointer guard used for pointer mangling was not
210 initialized for static applications resulting in the security feature
211 being disabled. The pointer guard is now correctly initialized to a
212 random value for static applications. Existing static applications need
213 to be recompiled to take advantage of the fix (bug 15754).
215 * CVE-2013-4237 The readdir_r function could write more than NAME_MAX bytes
216 to the d_name member of struct dirent, or omit the terminating NUL
217 character. (Bugzilla #14699).
219 * CVE-2013-4332 The pvalloc, valloc, memalign, posix_memalign and
220 aligned_alloc functions could allocate too few bytes or corrupt the
221 heap when passed very large allocation size values (Bugzilla #15855,
224 * CVE-2013-4458 Stack overflow in getaddrinfo with large number of results
225 for AF_INET6 has been fixed (Bugzilla #16072).
227 * New locales: ak_GH, anp_IN, ar_SS, cmn_TW, hak_TW, lzh_TW, nan_TW, pap_AW,
228 pap_CW, quz_PE, the_NP.
230 * Substantially revised locales: gd_GB, ht_HT
232 * The LC_ADDRESS field was updated to support country_car for almost all
235 * ISO 1427 definitions were updated.
237 * ISO 3166 definitions were updated.
239 * The localedef utility now supports --big-endian and --little-endian
240 command-line options to generate locales for a different system from that
241 for which the C library was built.
243 * Binary locale files now only depend on the endianness of the system for
244 which they are generated and not on other properties of that system. As a
245 consequence, binary files generated with new localedef may be incompatible
246 with old versions of the GNU C Library, and binary files generated with
247 old localedef may be incompatible with this version of the GNU C Library,
248 in the following circumstances:
250 + Locale files may be incompatible on m68k systems.
252 + Locale archive files (but not separate files for individual locales) may
253 be incompatible on systems where plain "char" is signed.
255 * The configure option --disable-versioning has been removed. Builds with
256 --disable-versioning had not worked for several years.
258 * ISO 639 definitions were updated for Chiga (cgg) and Chinese (gan, hak, czh,
259 cjy, lzh, cmn, mnp, cdo, czo, cpx, wuu, hsn, yue).
261 * SystemTap probes for malloc have been introduced.
263 * SystemTap probes for slow multiple precision fallback paths of
264 transcendental functions have been introduced.
266 * Support for powerpc64le has been added.
268 * The soft-float powerpc port now supports e500 processors.
270 * Support for STT_GNU_IFUNC symbols added for ppc32/power4+ and ppc64.
272 * A new feature test macro _DEFAULT_SOURCE is available to enable the same
273 set of header declarations that are enabled by default, even when other
274 feature test macros or compiler options such as -std=c99 would otherwise
275 disable some of those declarations.
277 * The _BSD_SOURCE feature test macro no longer enables BSD interfaces that
278 conflict with POSIX. The libbsd-compat library (which was a dummy library
279 that did nothing) has also been removed.
281 * Preliminary documentation about Multi-Thread, Async-Signal and
282 Async-Cancel Safety has been added.
284 * Change of ABI data structures for s390 and s390x:
285 On s390 and s390x the size of struct ucontext and jmp_buf was increased to
286 allow for future hardware extensions. All library functions that accept or
287 return these structures were versioned in order to provide backwards
288 compatibility with existing code. However, not all cases can be handled
289 with interface versioning. If an application embeds either structure into
290 another structure and that structure is passed to another compilation unit
291 which expects the newer larger-sized object then any access to the new
292 fields will result in undefined behaviour. Similarly any access to fields
293 that were moved by the enlarging of the structures will cause undefined
294 behaviour. To fix the undefined behaviour all objects that are part of the
295 final in-memory image must agree on the size of structures, and this may
296 require recompilation.
300 * The following bugs are resolved with this release:
302 2546, 2560, 5159, 6809, 7006, 10060, 10062, 10283, 10357, 10686, 11120,
303 11561, 12310, 12387, 12492, 12515, 12723, 13550, 13889, 13951, 13988,
304 14142, 14176, 14200, 14256, 14280, 14293, 14317, 14327, 14478, 14496,
305 14582, 14686, 14812, 14888, 14894, 14907, 14908, 14909, 14920, 14952,
306 14964, 14981, 14982, 14985, 14991, 14994, 14996, 15000, 15003, 15006,
307 15007, 15014, 15020, 15022, 15023, 15036, 15054, 15055, 15062, 15078,
308 15084, 15085, 15086, 15100, 15160, 15214, 15221, 15232, 15234, 15283,
309 15285, 15287, 15304, 15305, 15307, 15309, 15327, 15330, 15335, 15336,
310 15337, 15339, 15342, 15346, 15359, 15361, 15366, 15380, 15381, 15394,
311 15395, 15405, 15406, 15409, 15416, 15418, 15419, 15423, 15424, 15426,
312 15429, 15431, 15432, 15441, 15442, 15448, 15465, 15480, 15485, 15488,
313 15490, 15492, 15493, 15497, 15506, 15529, 15536, 15553, 15577, 15583,
314 15618, 15627, 15631, 15654, 15655, 15666, 15667, 15674, 15711, 15755,
317 * CVE-2013-2207 Incorrectly granting access to another user's pseudo-terminal
318 has been fixed by disabling the use of pt_chown (Bugzilla #15755).
319 Distributions can re-enable building and using pt_chown via the new configure
320 option `--enable-pt_chown'. Enabling the use of pt_chown carries with it
321 considerable security risks and should only be used if the distribution
322 understands and accepts the risks.
324 * CVE-2013-0242 Buffer overrun in regexp matcher has been fixed (Bugzilla
327 * CVE-2013-1914 Stack overflow in getaddrinfo with many results has been
328 fixed (Bugzilla #15330).
330 * Add support for calling C++11 thread_local object destructors on thread
331 and program exit. This needs compiler support for offloading C++11
332 destructor calls to glibc.
334 * Improved worst case performance of libm functions with double inputs and
337 * Support for priority inherited mutexes in pthread condition variables on
338 non-x86 architectures.
340 * Port to Xilinx MicroBlaze contributed by David Holsgrove.
342 * Optimized string functions for AArch64. Implemented by Marcus Shawcroft.
344 * Optimized string functions for ARM. Implemented by Will Newton and
347 * Optimized libm functions for SPARC. Implemented by David S. Miller.
349 * Support for building more of ARM glibc as Thumb-2 code. Implemented by
352 * Support for building most of MIPS glibc as MIPS16 code. Implemented by
353 Chung-Lin Tang, Maciej W. Rozycki and Maxim Kuvyrkov.
355 * Added a benchmark framework to track performance of functions in glibc.
357 * New <math.h> macro named issignaling to check for a signaling NaN (sNaN).
358 It is based on draft TS 18661 and currently enabled as a GNU extension.
360 * On Linux, the clock function now uses the clock_gettime system call
361 for improved precision, rather than old times system call.
363 * Added support for version-3 tz format files. This is needed when using
364 the tz database release 2013e or later, and affects a few unusual cases --
365 currently only TZ='America/Godthab' for time stamps after 2037.
367 * Added new API functions pthread_getattr_default_np and
368 pthread_setattr_default_np to get and set the default pthread
369 attributes of a process.
371 * Added support for TSX lock elision for pthread mutexes on i386 and x86-64.
372 This may improve lock scaling of existing programs on TSX capable systems.
373 When the --enable-lock-elision=yes parameter is specified at configure
374 time lock elision will be enabled by default for all PTHREAD_MUTEX_DEFAULT
377 * Support added for AT_HWCAP2 (to coincide with Linux kernel 3.10
378 availability). Implemented by Ryan S. Arnold.
380 * Support added for POWER8 platform. Implemented by Ryan S. Arnold.
384 * The following bugs are resolved with this release:
386 1349, 3439, 3479, 3665, 5044, 5246, 5298, 5400, 6530, 6677, 6778, 6808,
387 9685, 9914, 10014, 10038, 10114, 10191, 10631, 10873, 11438, 11607, 11638,
388 11741, 12140, 13013, 13412, 13542, 13601, 13603, 13604, 13629, 13679,
389 13696, 13698, 13717, 13741, 13759, 13761, 13763, 13881, 13939, 13950,
390 13952, 13966, 14042, 14047, 14090, 14150, 14151, 14152, 14154, 14157,
391 14166, 14173, 14195, 14197, 14237, 14246, 14251, 14252, 14283, 14298,
392 14303, 14307, 14328, 14331, 14336, 14337, 14347, 14349, 14368, 14376,
393 14417, 14447, 14459, 14476, 14477, 14501, 14505, 14510, 14516, 14518,
394 14519, 14530, 14532, 14538, 14543, 14544, 14545, 14557, 14562, 14568,
395 14576, 14579, 14583, 14587, 14595, 14602, 14610, 14621, 14638, 14645,
396 14648, 14652, 14660, 14661, 14669, 14672, 14683, 14694, 14716, 14719,
397 14743, 14767, 14783, 14784, 14785, 14793, 14796, 14797, 14801, 14803,
398 14805, 14807, 14811, 14815, 14821, 14822, 14824, 14828, 14831, 14833,
399 14835, 14838, 14856, 14863, 14865, 14866, 14868, 14869, 14871, 14872,
400 14879, 14889, 14893, 14898, 14914.
402 * Optimization of memcpy for MIPS.
404 * CVE-2011-4609 svc_run() produces high cpu usage when accept fails with
405 EMFILE has been fixed (Bugzilla #14889).
407 * The add-on ports collection is now distributed in the "ports" subdirectory
408 of the main GNU C Library distribution, rather than separately.
410 * Port to ARM AArch64 contributed by Linaro.
412 * Support for STT_GNU_IFUNC symbols added for s390 and s390x.
413 Optimized versions of memcpy, memset, and memcmp added for System z10 and
415 Implemented by Andreas Krebbel.
417 * The new function secure_getenv allows secure access to the environment,
418 returning NULL if running in a SUID/SGID process. This function replaces
419 the internal function __secure_getenv.
421 * SystemTap static probes have been added into the dynamic linker.
422 Implemented by Gary Benson.
424 * Optimizations of string functions strstr, strcasestr and memmem.
425 Implemented by Maxim Kuvyrkov.
427 * The minimum Linux kernel version that this version of the GNU C Library
428 can be used with is 2.6.16.
430 * Optimizations of string functions memchr, wcschr, wcscpy, and wcsrchr for
431 powerpc POWER7. Implemented by Will Schmidt.
433 * New configure option --disable-nscd builds the C library such that it
434 never attempts to contact the Name Service Caching Daemon (nscd).
435 New configure option --disable-build-nscd avoids building nscd itself;
436 this is the default if --disable-nscd is used.
438 * Improved support for cross-compilation, including cross-testing and
439 bootstrap builds without a previously built glibc.
441 * Several testsuite tests are now able to test multiple IFUNC variants of an
442 interface, rather than just testing the one that would be chooen by
445 * New configure options --with-bugurl and --with-pkgversion, for
446 distributors to use to embed their bug-reporting and package version
447 information in --help and --version output.
449 * The ttyname and ttyname_r functions on Linux now fall back to searching for
450 the tty file descriptor in /dev/pts or /dev if /proc is not available. This
451 allows creation of chroots without the procfs mounted on /proc.
453 * The `crypt' function now fails if passed salt bytes that violate the
454 specification for those values. On Linux, the `crypt' function will
455 consult /proc/sys/crypto/fips_enabled to determine if "FIPS mode" is
456 enabled, and fail on encrypted strings using the MD5 or DES algorithm
457 when the mode is enabled.
459 * The `clock_*' suite of functions (declared in <time.h>) is now available
460 directly in the main C library. Previously it was necessary to link with
461 -lrt to use these functions. This change has the effect that a
462 single-threaded program that uses a function such as `clock_gettime' (and
463 is not linked with -lrt) will no longer implicitly load the pthreads
464 library at runtime and so will not suffer the overheads associated with
465 multi-thread support in other code such as the C++ runtime library.
467 * New locales: ayc_PE, doi_IN, ia_FR, mni_IN, nhn_MX, niu_NU, niu_NZ,
472 * The following bugs are resolved with this release:
474 174, 208, 350, 369, 411, 706, 766, 887, 2074, 2541, 2547, 2548, 2550,
475 2551, 2552, 2553, 2554, 2562, 2563, 2565, 2566, 2570, 2576, 2636, 2678,
476 3335, 3440, 3748, 3768, 3866, 3868, 3906, 3976, 3992, 4026, 4108, 4596,
477 4822, 5077, 5461, 5805, 5993, 6471, 6486, 6578, 6649, 6730, 6770, 6794,
478 6884, 6890, 6894, 6895, 6907, 6911, 6959, 7064, 9739, 9902, 10110, 10135,
479 10140, 10153, 10210, 10254, 10346, 10375, 10545, 10716, 10846, 11174,
480 11261, 11322, 11365, 11451, 11494, 11521, 11677, 11837, 11959, 12047,
481 12097, 12193, 12194, 12297, 12298, 12301, 12340, 12354, 12416, 12495,
482 13058, 13223, 13361, 13525, 13526, 13527, 13528, 13529, 13530, 13531,
483 13532, 13533, 13547, 13551, 13552, 13553, 13555, 13556, 13559, 13563,
484 13566, 13576, 13579, 13583, 13592, 13594, 13613, 13618, 13637, 13656,
485 13658, 13673, 13691, 13695, 13704, 13705, 13706, 13718, 13726, 13738,
486 13739, 13743, 13750, 13758, 13760, 13761, 13775, 13786, 13787, 13792,
487 13806, 13824, 13840, 13841, 13844, 13846, 13848, 13851, 13852, 13854,
488 13871, 13872, 13873, 13879, 13882, 13883, 13884, 13885, 13886, 13892,
489 13895, 13908, 13910, 13911, 13912, 13913, 13914, 13915, 13916, 13917,
490 13918, 13919, 13920, 13921, 13922, 13923, 13924, 13926, 13927, 13928,
491 13938, 13941, 13942, 13954, 13955, 13956, 13963, 13967, 13968, 13970,
492 13973, 13979, 13983, 13986, 13996, 14012, 14027, 14033, 14034, 14036,
493 14040, 14043, 14044, 14048, 14049, 14050, 14053, 14055, 14059, 14064,
494 14075, 14080, 14083, 14103, 14104, 14109, 14112, 14117, 14122, 14123,
495 14134, 14153, 14183, 14188, 14199, 14210, 14218, 14229, 14241, 14273,
498 * Support for the x32 ABI on x86-64 added. The x32 target is selected by
499 configuring glibc with:
500 BUILD_CC='gcc' CC='gcc -mx32' CXX='g++ -mx32'
501 Visit <http://sites.google.com/site/x32abi/> for more x32 ABI info.
502 Implemented by H.J. Lu.
506 + define static_assert
508 + do not declare gets
510 + declare at_quick_exit and quick_exit also for ISO C11
512 + aligned_alloc. NB: The code is deliberately allows the size parameter
513 to not be a multiple of the alignment. This is a moronic requirement
514 in the standard but it is only a requirement on the caller, not the
519 + uchar.h support added
521 + CMPLX, CMPLXF, CMPLXL added
523 Implemented by Ulrich Drepper.
525 * Support for the IA-64 has been moved to ports.
527 * Remove support for anything but ELF binary format
529 * Checking versions of poll, ppoll added.
530 Implemented by Ulrich Drepper.
532 * More generic and 64-bit performance optimizations to math functions.
533 Implemented by Ulrich Drepper.
535 * New configure option --enable-obsolete-rpc makes the deprecated RPC
536 headers and functions available at compile time as they were before
537 version 2.14. This option will be removed at some time in the future
538 after the TI-RPC library becomes fully sufficient for the needs of
539 existing applications.
541 * Compatibility code for Linux kernel versions before 2.4 has been removed.
542 Note that glibc is not expected to work with any Linux kernel version
545 * New header <sys/auxv.h> and function getauxval allowing easy access to
546 the AT_* key-value pairs passed from the Linux kernel. The header also
547 defines the HWCAP_* bits associated with the AT_HWCAP key.
549 * New locales: mag_IN
551 * New configure option --enable-systemtap builds SystemTap static probes
552 into libc for setjmp and longjmp and into libpthread for various operations.
553 So far the setjmp/longjmp probes and some of the libpthread probes are
554 provided only for i*86 and x86_64.
555 Implemented by Roland McGrath and Rayson Ho.
557 * Optimized expf for x86-32 and x86-64. Implemented by Liubov Dmitrieva.
559 * More optimized functions for PowerPC. Implemented by Adhemerval Zanella
562 * More optimized functions for SPARC. Implemented by David S. Miller.
564 * Improved support for cross-compilation, especially bootstrap builds
565 without a previously built glibc.
567 * Ports for the TILE-Gx and TILEPro families of processors. Contributed by
568 Chris Metcalf from Tilera.
570 * Support for the old ARM ABI has been removed from ports. Only the EABI is
571 now supported for ARM processors.
573 * The hard-float variant of the ARM EABI now uses /lib/ld-linux-armhf.so.3
574 as the name of the dynamic linker, to distinguish it from the
575 /lib/ld-linux.so.3 dynamic linker used for the base EABI.
577 * Support for CRIS has been removed from ports.
579 * A new class of installed header has been documented for low-level
580 platform-specific functionality. PowerPC added the first instance with a
581 function to provide time base register access. Contributed by Tulio
582 Magno Quites Machado Filho.
584 * ix86 configurations now install header files that are consistent with
585 what x86-64 configurations install. These same header files can be used
586 for -m32, -m64, or -mx32 builds.
587 Contributed by H.J. Lu.
589 * Math library bug fixes. A thorough audit of all open math library bugs was
590 conducted by Joseph Myers. Significant progress was made on many math
591 library bugs resulting in more accurate exceptions and function results.
592 Many thanks to all those that contributed including Andreas Jaeger for his
593 patch review and work on the x87 trigonometric instruction issues.
595 * Timezone data is no longer installed. Timezone-related binaries and scripts
596 will continue to be installed. Users should obtain their timezone data from
597 their distribution provider or from the tzdata package at
598 <ftp://munnari.oz.au/pub/>.
602 * The following bugs are resolved with this release:
604 6779, 6783, 9696, 10103, 10709, 11589, 11929, 12403, 12786, 12840, 12847,
605 12868, 12852, 12874, 12885, 12892, 12906, 12907, 12922, 12935, 12962,
606 13007, 13021, 13061, 13062, 13067, 13068, 13085, 13088, 13090, 13092,
607 13096, 13114, 13118, 13123, 13134, 13138, 13147, 13150, 13166, 13179,
608 13185, 13189, 13192, 13268, 13276, 13282, 13291, 13305, 13328, 13335,
609 13337, 13344, 13358, 13367, 13413, 13416, 13423, 13439, 13446, 13472,
610 13484, 13506, 13515, 13523, 13524, 13538, 13540
612 * New program pldd to list loaded object of a process
613 Implemented by Ulrich Drepper.
615 * Add nss_db support back to glibc. No more dependency on Berkeley db
616 and support for initgroups lookups.
617 Implemented by Ulrich Drepper.
619 * Optimized strcpy, strncpy, stpcpy, stpncpy for SSE2 and SSSE3 on x86-32.
620 Contributed by HJ Lu.
622 * Improved strcpy, strncpy, stpcpy, stpncpy for SSE2 and SSSE3 on x86-64.
623 Contributed by HJ Lu.
625 * Optimized strcat, strncat on x86-64 and optimized wcscmp, wcslen, strnlen
626 on x86-32 and x86-64.
627 Contributed by Liubov Dmitrieva.
629 * Optimized strchr and strrchr for SSE on x86-32.
630 Contributed by Liubov Dmitrieva.
632 * Optimized memchr, memrchr, rawmemchr, memcmp, wmemcmp, wcschr, wcscpy
633 for x86-64 and x86-32.
634 Contributed by Liubov Dmitrieva.
636 * New interfaces: scandirat, scandirat64
637 Implemented by Ulrich Drepper.
639 * Checking versions of FD_SET, FD_CLR, and FD_ISSET added.
640 Implemented by Ulrich Drepper.
642 * nscd now also caches the netgroup database.
643 Implemented by Ulrich Drepper.
645 * Integrate libm with gcc's -ffinite-math-only option.
646 Implemented by Ulrich Drepper.
648 * Lots of generic, 64-bit, and x86-64-specific performance optimizations
649 to math functions. Implemented by Ulrich Drepper.
651 * Optimized strcasecmp and strncasecmp for AVX on x86-64.
652 Implemented by Ulrich Drepper.
654 * New Linux interfaces: process_vm_readv, process_vm_writev
656 * Optimized strcasecmp and strncasecmp for SSSE3 and SSE4.2 on x86-32.
657 Implemented by Ulrich Drepper.
659 * Optimized nearbyint and strcasecmp for PPC.
660 Implemented by Adhemerval Zanella.
662 * New locales: bho_IN, unm_US, es_CU, ta_LK
666 * The following bugs are resolved with this release:
668 386, 6420, 7101, 9730, 9732, 9809, 10138, 10149, 10157, 11099, 11257,
669 11258, 11487, 11532, 11558, 11578, 11634, 11653, 11668, 11697, 11724,
670 11781, 11799, 11820, 11837, 11857, 11869, 11892, 11895, 11901, 11945,
671 11947, 11952, 11987, 12052, 12083, 12158, 12178, 12200, 12346, 12350,
672 12393, 12420, 12432, 12445, 12449, 12453, 12454, 12460, 12469, 12489,
673 12509, 12510, 12511, 12518, 12527, 12541, 12545, 12551, 12582, 12583,
674 12587, 12597, 12601, 12611, 12625, 12626, 12631, 12650, 12653, 12655,
675 12660, 12671, 12681, 12684, 12685, 12711, 12713, 12714, 12717, 12723,
676 12724, 12734, 12738, 12746, 12766, 12775, 12777, 12782, 12788, 12792,
677 12795, 12811, 12813, 12814, 12841
679 * The RPC implementation in libc is obsoleted. Old programs keep working
680 but new programs cannot be linked with the routines in libc anymore.
681 Programs in need of RPC functionality must be linked against TI-RPC.
682 The TI-RPC implementation is IPv6 enabled and there are other benefits.
684 Visible changes of this change include (obviously) the inability to link
685 programs using RPC functions without referencing the TI-RPC library and the
686 removal of the RPC headers from the glibc headers.
687 Implemented by Ulrich Drepper.
689 * New Linux interfaces: clock_adjtime, name_to_handle_at, open_by_handle_at,
690 syncfs, setns, sendmmsg
692 * New locales: os_RU, bem_ZA, en_ZA, ff_SN, sw_KE, sw_TZ, lb_LU, wae_CH,
693 yue_HK, lij_IT, mhr_RU
695 * New encodings: CP770, CP771, CP772, CP773, CP774
697 * New program sotruss to trace calls through PLTs
698 Implemented by Ulrich Drepper.
700 * The malloc hook implementation is marked deprecated and will be removed
701 from the default implementation in the next version. The design never
702 worked ever since the introduction of threads. Even programs which do
703 not create threads themselves can use multiple threads created internally.
707 * The following bugs are resolved with this release:
709 3268, 6812, 7066, 10085, 10484, 10563, 10851, 11149, 11155, 11577, 11611,
710 11640, 11655, 11701, 11840, 11856, 11883, 11903, 11904, 11968, 11979,
711 12005, 12037, 12067, 12077, 12078, 12092, 12093, 12107, 12108, 12113,
712 12140, 12159, 12167, 12191, 12194, 12201, 12204, 12205, 12207, 12348,
715 * New Linux interfaces: prlimit, prlimit64, fanotify_init, fanotify_mark
717 * POWER7 optimizations: memset, memcmp, strncmp
719 * New optimized string functions for x86-64: strnlen (SSE2),
720 strcasecmp (SSE2, SSSE3, SSE4.2), strncasecmp (SSE2, SSSE3, SSE4.2)
721 Implemented by Ulrich Drepper.
725 * The following bugs are resolved with this release:
727 3662, 4457, 5553, 10162, 10401, 10414, 10554, 10824, 10864, 10915,
728 10918, 10936, 10939, 10958, 10968, 10969, 10972, 10992, 11000, 11001,
729 11007, 11010, 11027, 11039, 11040, 11041, 11043, 11046, 11056, 11070,
730 11093, 11115, 11125, 11126, 11127, 11134, 11141, 11149, 11183, 11184,
731 11185, 11186, 11187, 11188, 11189, 11190, 11191, 11192, 11193, 11194,
732 11200, 11230, 11235, 11242, 11254, 11258, 11271, 11272, 11276, 11279,
733 11287, 11292, 11319, 11332, 11333, 11387, 11389, 11390, 11394, 11397,
734 11410, 11438, 11449, 11470, 11471, 11520, 11537, 11538, 11571
736 * New interfaces: pthread_getname_np, pthread_setname_np
738 * New Linux interface: recvmmsg
740 * STT_GNU_IFUNC implemented for Sparc by David Miller.
742 * The dynamic linker now recognizes supported ABI versions from the
743 EI_ABIVERSION field in the ELF header.
744 Implemented by Ulrich Drepper.
746 * New NIS mode selector ADJUNCT_AS_SHADOW. The passwd.adjunct.byname table
747 will not be used to fill in password fields in the passwd.byname replies.
748 Instead it is used to synthesize the shadow.byname table, should it be
749 missing. This is a useful mode in some installations involving Solaris.
750 Implemented by Ulrich Drepper.
752 * New locales: kok_IN, sq_MK, cv_RU
756 * The following bugs are resolved with this release:
758 3270, 7094, 9924, 9986, 10011, 10085, 10107, 10159, 10162, 10166, 10183,
759 10195, 10196, 10200, 10203, 10207, 10211, 10213, 10217, 10221, 10229,
760 10262, 10286, 10312, 10315, 10319, 10349, 10360, 10391, 10402, 10416,
761 10418, 10422, 10425, 10446, 10448, 10452, 10540, 10553, 10560, 10564,
762 10609, 10643, 10692, 10713, 10717, 10730, 10731, 10742, 10780, 10784,
763 10789, 10817, 10823, 10840, 10847
765 * New interfaces: execvpe, pthread_sigqueue, mkstemps, mkstemps64, mkostemps,
767 Implemented by Ulrich Drepper.
769 * Checking version of longjmp added that fails if an uninitialized stack
770 frame would be created. Implemented by Ulrich Drepper.
772 * STT_GNU_IFUNC is now supported in static executables.
773 Implemented by H.J. Lu.
775 * STT_GNU_IFUNC implemented for PPC by Alan Modra.
777 * New optimized string functions for x86-64: strstr, strcasestr, memcmp,
778 strcspn, strpbrk, strspn, strcpy, stpcpy, strncpy, strcmp (SSE2, SSE4.2),
779 strncmp (SSE2, SSE4.2), strchr (SSE4.2), strrchr (SSE4.2).
780 Contributed by H.J. Lu.
782 strlen, rawmemchr, strcmp (SSSE3), strncmp (SSSE3).
783 Implemented by Ulrich Drepper.
785 * New optimized string functions for x86: strlen, strcspn, strspn, strpbrk,
787 Contributed by H.J. Lu.
789 * Support for fma instruction in AVX on x86-64.
790 Implemented by H.J. Lu and Ulrich Drepper.
792 * AVX support in x86-64 auditing support in ld.so.
793 Implemented by H.J. Lu.
795 * STB_GNU_UNIQUE support added.
796 Implemented by Ulrich Drepper.
798 * Implement second fallback mode for optimized DNS lookup for even more
799 broken environments. If two requests from the same port are not
800 handled correctly close the socket and open a new one before sending
801 the second request. The 'single-request-reopen' option in /etc/resolv.conf
802 can be used to select this mode right away, instead of rediscovering the
803 necessity is every process again.
804 Implemented by Ulrich Drepper.
806 * New resolver flag RES_USE_DNSSEC to enable use of verified lookup.
807 Implemented by Adam Tkac.
809 * Optimized iconv conversions for S390x.
810 Implemented by Andreas Krebbel.
812 * Using condvars with PI mutexes is now more efficient due to kernel
813 support for requeueing to PI futexes. NPTL support added for x86-64.
814 Implemented by Ulrich Drepper.
816 * New locales: ps_AF, my_MM
820 * The following bugs are resolved with this release:
822 697, 5381, 5807, 6411, 6545, 7040, 7058, 7067, 7080, 7083, 7095, 7098,
823 9677, 9694, 9697, 9701, 9704, 9705, 9706, 9720, 9726, 9730, 9733, 9736,
824 9741, 9750, 9753, 9759, 9781, 9791, 9793, 9823, 9833, 9844, 9880, 9881,
825 9891, 9893, 9895, 9913, 9916, 9920, 9948, 9955, 9957, 9963, 9985, 10052,
826 10069, 10086, 10087, 10090, 10092, 10093, 10100, 10118, 10128
828 * New interfaces: preadv, preadv64, pwritev, pwritev64, malloc_info
829 Implemented by Ulrich Drepper.
831 * New Linux interfaces: accept4, fallocate, fallocate64.
832 Implemented by Ulrich Drepper.
834 * Correct declarations of string function when used in C++ code. This
835 could lead to compile errors for invalid C++ code.
837 * XPG7/POSIX 2008 compilation environment. Many GNU-specific functions are
840 * New POSIX 2008 interface: psiginfo
841 Implemented by Ulrich Drepper.
843 * New ISO C++1x interfaces: quick_exit, at_quick_exit
844 Implemented by Ulrich Drepper.
846 * Support for selecting between multiple function definitions at runtime
847 using STT_GNU_IFUNC symbols. Implemented by Ulrich Drepper.
849 * The libcrypt library can now use the hash function implementations in
850 NSS. Implemented by Ulrich Drepper.
852 * The malloc implementation can be compiled to be less memory efficient
853 but higher performing in multi-threaded programs.
854 Implemented by Ulrich Drepper.
856 * New locales: nan_TW@latin, ks_IN
858 * Faster strlen, strchr, strchrnul, strrchr, memchr, and rawmemchr for x86-64.
859 Implemented by Ulrich Drepper.
861 * Extended printf hook support. It is possible to use user-defined types
862 and extend existing format specifiers.
863 Implemented by Ulrich Drepper.
865 * Handling for group shadow files has been added.
866 Implemented by Ulrich Drepper.
868 * DNS IPv4-IPv6 parallel lookup now deals better with broken DNS
869 servers (the case, e.g., for some people using the built-in DNS
870 server in ADSL modems/routers). There is a once-per-process timeout
871 in case of a broken server. To avoid it, users can run nscd or put
872 'options single-request' in /etc/resolv.conf.
873 Implemented by Ulrich Drepper.
877 * The following bugs are resolved with this release:
879 3406, 5209, 5210, 5381, 5794, 5814, 5911, 6428, 6438, 6442, 6447, 6461,
880 6472, 6505, 6544, 6589, 6612, 6634, 6653, 6654, 6657, 6698, 6712, 6713,
881 6719, 6723, 6724, 6740, 6763, 6771, 6790, 6791, 6817, 6824, 6839, 6843,
882 6845, 6856, 6857, 6860, 6867, 6875, 6919, 6920, 6942, 6947, 6955, 6966,
883 6968, 6974, 6980, 6995, 7008, 7009, 7029
885 * Unified lookup for getaddrinfo: IPv4 and IPv6 addresses are now looked
886 up at the same time. Implemented by Ulrich Drepper.
888 * TLS descriptors for LD and GD on x86 and x86-64.
889 Implemented by Alexandre Oliva.
891 * getaddrinfo now handles DCCP and UDPlite.
892 Implemented by Ulrich Drepper.
894 * New fixed-size conversion macros: htobe16, htole16, be16toh, le16toh,
895 htobe32, htole32, be32toh, le32toh, htobe64, htole64, be64toh, le64toh.
896 Implemented by Ulrich Drepper.
898 * New implementation of memmem, strstr, and strcasestr which is O(n).
899 Implemented by Eric Blake.
901 * New Linux interfaces: inotify_init1, dup3, epoll_create1, pipe2
903 * Implement "e" option for popen to open file descriptor with the
904 close-on-exec flag set. Implemented by Ulrich Drepper.
906 * Implement "b" mode for fmemopen. In this mode writes writes don't
907 implicitly add a NUL byte and seeks from the end of the buffer really
908 use the buffer end, not the string length as the basis.
909 Implemented by Ulrich Drepper.
911 * Many functions, exported and internal, now atomically set the close-on-exec
912 flag when run on a sufficiently new kernel. Implemented by Ulrich Drepper.
914 * Sorting rules for some Indian languages (Kannada, Gurumukhi, Telugu,
916 Implemented by Pravin Satpute.
918 * New locales: sd_IN, sd_IN@devanagari, ks_IN@devanagari, ht_HT, en_AG, nl_AW.
922 * The following bugs are resolved with this release:
924 2549, 3112, 4314, 4407, 4997, 5012, 5040, 5112, 5204, 5208, 5209, 5220,
925 5222, 5224, 5225, 5237, 5238, 5240, 5245, 5277, 5346, 5375, 5378, 5382,
926 5424, 5427, 5428, 5435, 5436, 5439, 5441, 5442, 5443, 5451, 5452, 5454,
927 5455, 5463, 5464, 5465, 5475, 5477, 5478, 5520, 5541, 5545, 5553, 5600,
928 5602, 5607, 5614, 5627, 5628, 5736, 5737, 5741, 5753, 5760, 5762, 5768,
929 5774, 5777, 5778, 5779, 5786, 5790, 5818, 5854, 5857, 5903, 5939, 5979,
930 5983, 5995, 5998, 6004, 6007, 6020, 6021, 6024, 6040, 6042
932 * New locales: bo_CN, bo_IN, shs_CA.
934 * New encoding: HP-ROMAN9, HP-GREEK8, HP-THAI8, HP-TURKISH8.
936 * Sorting rules for some Indian languages (Devanagari and Gujarati).
937 Implemented by Pravin Satpute.
939 * IPV6 addresses in /etc/resolv.conf can now have a scope ID
941 * nscd caches now all timeouts for DNS entries
942 Implemented by Ulrich Drepper.
944 * nscd is more efficient and wakes up less often.
945 Implemented by Ulrich Drepper.
947 * More checking functions: asprintf, dprintf, obstack_printf, vasprintf,
948 vdprintf, and obstack_vprintf.
949 Implemented by Jakub Jelinek.
951 * Faster memset for x86-64.
952 Implemented by Harsha Jagasia and H.J. Lu.
954 * Faster memcpy on x86.
955 Implemented by Ulrich Drepper.
957 * ARG_MAX is not anymore constant on Linux. Use sysconf(_SC_ARG_MAX).
958 Implemented by Ulrich Drepper.
960 * Faster sqrt and sqrtf implemention for some PPC variants.
961 Implemented by Steven Munroe.
965 * The following bugs are resolved with this release:
967 4125, 4126, 4178, 4359, 4407, 4512, 4514, 4525, 4554, 4556, 4557, 4566,
968 4582, 4586, 4588, 4599, 4610, 4647, 4702, 4705, 4726, 4745, 4772, 4773,
969 4775, 4776, 4792, 4813, 4814, 4816, 4833, 4858, 4860, 4896, 4905, 4925,
970 4936, 4937, 4938, 4941, 4946, 4963, 4972, 5010, 5028, 5043, 5058, 5063,
971 5071, 5103, 5104, 5112, 5113, 5184, 5186
973 * More checking functions: fread, fread_unlocked, open*, mq_open.
974 Implemented by Jakub Jelinek and Ulrich Drepper.
976 * Extend fortification to C++. Implemented by Jakub Jelinek.
978 * Implement 'm' modifier for scanf. Add stricter C99/SUS compliance
979 by not recognizing 'a' as a modifier when those specs are requested.
980 Implemented by Jakub Jelinek.
982 * PPC optimizations to math and string functions.
983 Implemented by Steven Munroe.
985 * New interfaces: mkostemp, mkostemp64. Like mkstemp* but allow additional
986 options to be passed. Implemented by Ulrich Drepper.
988 * More CPU set manipulation functions. Implemented by Ulrich Drepper.
990 * New Linux interfaces: signalfd, eventfd, eventfd_read, and eventfd_write.
991 Implemented by Ulrich Drepper.
993 * Handle private futexes in the NPTL implementation.
994 Implemented by Jakub Jelinek and Ulrich Drepper.
996 * Add support for O_CLOEXEC. Implement in Hurd. Use throughout libc.
997 Implemented by Roland McGrath and Ulrich Drepper.
999 * Linux/x86-64 vDSO support. Implemented by Ulrich Drepper.
1001 * SHA-256 and SHA-512 based password encryption.
1002 Implemented by Ulrich Drepper.
1004 * New locales: ber_DZ, ber_MA, en_NG, fil_PH, fur_IT, fy_DE, ha_NG, ig_NG,
1005 ik_CA, iu_CA, li_BE, li_NL, nds_DE, nds_NL, pap_AN, sc_IT, tk_TM, ug_CN,
1008 + New iconv modules: MAC-CENTRALEUROPE, ISO-8859-9E, KOI8-RU.
1009 Implemented by Ulrich Drepper.
1013 * The following bugs are resolved with this release:
1015 3156, 3213, 3285, 3291, 3306, 3313, 3320, 3322, 3325, 3326, 3334, 3348,
1016 3352, 3363, 3369, 3426, 3427, 3429, 3451, 3458, 3465, 3480, 3483, 3493,
1017 3514, 3515, 3559, 3632, 3664, 3673, 3674, 3745, 3747, 3818, 3840, 3842,
1018 3851, 3855, 3884, 3885, 3902, 3905, 3919, 3944, 3954, 3955, 3957, 3991,
1019 3995, 3996, 4024, 4040, 4069, 4070, 4074, 4076, 4096, 4101, 4102, 4114,
1020 4130, 4131, 4181, 4276, 4306, 4342, 4344, 4349, 4364, 4368, 4381, 4392,
1021 4403, 4405, 4406, 4411, 4438, 4439, 4455, 4456, 4465, 4512, 4514, 4586,
1024 * New Linux interfaces: epoll_pwait, sched_getcpu.
1026 * New generic interfaces: strerror_l.
1028 * nscd can now cache the services database. Implemented by Ulrich Drepper.
1032 * The following bugs are resolved with this release:
1034 39, 68, 192, 352, 388, 531, 935, 1006, 1201, 1203, 1386, 1782, 1783, 1784,
1035 1785, 1786, 1787, 1951, 1974, 1996, 2072, 2098, 2125, 2134, 2158, 2182,
1036 2349, 2376, 2386, 2389, 2415, 2418, 2420, 2423, 2450, 2451, 2466, 2472,
1037 2473, 2477, 2498, 2499, 2501, 2502, 2505, 2507, 2508, 2509, 2517, 2526,
1038 2569, 2571, 2592, 2611, 2625, 2632, 2644, 2662, 2680, 2683, 2684, 2693,
1039 2695, 2703, 2734, 2751, 2764, 2766, 2775, 2792, 2821, 2823, 2832, 2841,
1040 2843, 2883, 2892, 2908, 2914, 2926, 2961, 2978, 2980, 2987, 2997, 2998,
1041 3013, 3018, 3034, 3040, 3044, 3123, 3124, 3137, 3138, 3143, 3155, 3189,
1042 3225, 3251, 3252, 3253, 3273
1044 * For Linux, the sorting of addresses returned by getaddrinfo now also
1045 handles rules 3, 4, and 7 from RFC 3484. I.e., all rules are handled.
1046 Implemented by Ulrich Drepper.
1048 * Allow system admin to configure getaddrinfo with the /etc/gai.conf file.
1049 Implemented by Ulrich Drepper.
1051 * New Linux interfaces: splice, tee, sync_file_range, vmsplice.
1053 * New iconv module for MIK. Contributed by Alexander Shopov.
1055 * For sites with broken group and/or passwd database, the auto-propagate
1056 option of nscd can prevent creating ID lookup entries from the results
1057 of a name lookup and vice versa. This usually is no problem but some
1058 site might have problems with the default behavior.
1059 Implemented by Ulrich Drepper.
1061 * Iterating over entire database in NIS can be slow. With the
1062 SETENT_BATCH_READ option in /etc/default/nss a system admin can decide
1063 to trade time for memory. The entire database will be read at once.
1064 Implemented by Ulrich Drepper.
1066 * The interfaces introduced in RFC 3542 have been implemented by
1069 * Support for the new ELF hash table format was added by Ulrich Drepper.
1071 * Support for priority inheritance mutexes added by Jakub Jelinek and
1074 * Support for priority protected mutexes added by Jakub Jelinek.
1076 * New locales: nr_ZA, pa_PK, ca_AD, ca_FR, ca_IT, el_CY, tr_CY, as_IN,
1077 or_IN, csb_PL, fy_NL, sr_ME.
1081 * More overflow detection functions.
1083 * New iconv converters for IBM1025, IBM1122, IBM1137, IBM1153,
1084 IBM1154, IBM1155, IBM1156, IBM1157, and IBM1158 contributed by Jiro Sekiba.
1086 More converters for IBM803, IBM901, IBM902, IBM921, IBM1008, IBM1097,
1087 IBM1112, IBM1123, IBM1130, IBM1140, IBM1141, IBM1142, IBM1143, IBM1144,
1088 IBM1145, IBM1146, IBM1147, IBM1148, IBM1149, IBM1166, IBM1167, IBM4517,
1089 IBM4899, IBM4909, IBM4971, IBM5347, IBM9030, IBM9066, IBM9448, IBM12712,
1090 IBM16804, IBM1364, IBM1371, IBM1388, IBM1390, and IBM1399 contributed
1091 by Masahide Washizawa.
1093 * It is now possible to install audit libraries for the dynamic linker using
1094 LD_AUDIT. Implemented by Ulrich Drepper.
1096 * The LinuxThreads add-on, providing pthreads on Linux 2.4 kernels, is no
1097 longer supported. The new NPTL implementation requires Linux 2.6 kernels.
1098 For a libc and libpthread that works well on Linux 2.4 kernels, we
1099 recommend using the stable 2.3 branch.
1101 * The new function open_wmemstream acts like open_memstream,
1102 but uses a wchar_t wide character buffer.
1104 * The new function ppoll is an improved version of poll, similar to pselect.
1106 * New interfaces: fdopendir, openat, fstatat, fchmodat, fchownat,
1107 futimesat, faccessat, mkdirat, mkfifoat, mknodat,
1108 renameat, unlinkat, linkat, symlinkat, readlinkat.
1110 * New Linux kernel system calls: unshare,
1111 inotify_init, inotify_add_watch, inotify_rm_watch.
1113 * The euidaccess function is now also known by the alias eaccess,
1114 for compatibility with some other systems.
1116 * Timezone data updated to 2006b version.
1120 * The following bugs are resolved with this release:
1122 38, 253, 549, 622, 653, 721, 758, 851, 877, 915, 934, 955, 961,
1123 1016, 1037, 1076, 1079, 1080, 1081, 1082, 1083, 1084, 1085, 1086,
1124 1087, 1088, 1090, 1091, 1092, 1093, 1094, 1095, 1096, 1097, 1098,
1125 1099, 1100, 1101, 1102, 1103, 1104, 1105, 1106, 1107, 1108, 1109,
1126 1110, 1111, 1112, 1113, 1125, 1137, 1138, 1249, 1250, 1251, 1252,
1127 1253, 1254, 1350, 1358, 1394, 1438, 1498, 1534
1129 Visit <http://sources.redhat.com/bugzilla/> for the details of each bug.
1131 * As of this release, GCC 4 can be used to compile the C Library.
1133 * Timezone data updated to 2005m version.
1137 * The following bugs are resolved with this release:
1139 284, 592, 602, 626, 633, 640, 650, 661, 671, 681, 693, 700, 710, 719,
1140 722, 723, 725, 726, 727, 728, 729, 730, 731, 732, 733, 734, 735, 736,
1141 737, 738, 739, 740, 741, 742, 743, 744, 745, 765, 767, 768, 769, 776,
1142 777, 787, 821, 822, 823, 825
1144 Visit <http://sources.redhat.com/bugzilla/> for the details of each bug.
1148 * Support for RFC 3678. Real implementations exist only for Linux so far.
1149 Implemented by Ulrich Drepper.
1151 * nscd can now cache entries persistently. Expiring entries are reloaded.
1152 For speedups the cache can be shared in memory with client processes.
1153 Implemented by Ulrich Drepper.
1155 * nscd can now perform SELinux checks.
1156 Implemented by Matthew Rickard <mjricka@epoch.ncsc.mil>.
1158 * getaddrinfo queries are now cached. Canonical name lookup is performed
1160 Implemented by Ulrich Drepper.
1162 * The nothrow function attribute is used when headers are used by gcc when
1163 compiling C code. This can avoid significant amounts of exception
1166 * The malloc functions perform more error checking and are stricter when
1167 it comes to reacting on errors. The default action is to terminate
1168 the process after showing an error message. Implemented by Ulrich Drepper.
1170 * Reverse lookups of IPv6 addresses does not use bit string or .ip6.int
1171 lookups anymore unless explicitly requested. Implemented by Ulrich Drepper.
1173 * Namespaces in ld.so are implemented. DSOs can be loaded in separate
1174 namespaces using the new function dlmopen(). This feature is of course,
1175 like most other dynamic loading functionality, not available in statically
1176 linked applications. Implemented by Ulrich Drepper.
1178 * Low-overhead boundary checking variants of string and some stdio functions
1179 were added. These are to be used in conjunction with a gcc patch by
1180 Jakub Jelinek which adds calls to these functions if possible.
1181 Implemented by Jakub Jelinek and Ulrich Drepper.
1183 * Old code for several operating systems and machine architectures that
1184 have not been in working condition in a long time have been removed from
1185 the main source tree maintained by the GNU C Library's maintainers.
1186 These files are now reside in the separate `ports' source module
1187 that is usable as an add-on when building the library.
1191 * New functions `dladdr1' and `dlinfo' in <dlfcn.h> provide more ways to
1192 interrogate the dynamic linker, compatible with the Solaris interface.
1194 * ELF thread-local storage support (TLS) now works on PowerPC and PowerPC64;
1195 implemented by Paul Mackerras, Steven Munroe, and Roland McGrath.
1197 * getifaddrs now uses the netlink interface on Linux to get its information.
1198 Implemented by Thorsten Kukuk.
1200 * getaddrinfo now implements AI_V4MAPPED, AI_ALL, and AI_ADDRCONF.
1201 Implemented by Ulrich Drepper.
1203 * support for non-executable stacks on x86 has been added. Changes mostly
1206 * regex is now much faster for multibyte locales. Changes by Jakub Jelinek
1209 * getaddrinfo now performs destination address selection according to
1214 * Thread-safe interfaces for many functions that access locale data
1215 were added in version 2.3, but these features were omitted from NEWS.
1216 Many functions have variants with an `_l' suffix that take a `locale_t'
1217 object as a parameter rather than consulting the current locale.
1218 The new functions `newlocale', `duplocale', and `freelocale' in <locale.h>
1219 create and maintain `locale_t' objects. Additionally, the new function
1220 `uselocale' sets "the current locale" (as used by functions not so
1221 parameterized) set for an individual thread. These features were added
1222 in version 2.3, implemented by Ulrich Drepper and Roland McGrath.
1224 * The functions getresuid, getresgid, setresuid, and setresgid, which
1225 have long been available on Linux, are now declared in <unistd.h>
1226 and are now also available on the Hurd.
1228 * ELF thread-local storage support (TLS) now works on x86-64.
1230 * The new dynamic string token $LIB is expanded in shared library names.
1231 This normally expands to lib, but on some 64-bit platforms to lib64 instead.
1233 * Aldy Hernandez contributed complete software floating point support for
1234 PowerPC machines with no FPU.
1236 * fexecve is implemented on Linux.
1238 * The `btowc' function should work at least twice as fast due to
1239 specialized callbacks in the iconv modules. Implemented by Bruno Haible.
1241 * With approriate thread add-ons cancelable functions are now implemented
1242 in libc.so as well. No need to call the function in libpthread. This
1243 change allowed to finally disable the incorrect and expensive handling
1244 of weak definition in ld.so.
1246 * Yet more PLT entries in libc.so have been removed. We finally arrived
1247 at the bare minimum. Startup times improved appropriately.
1249 * Support for the new Linux/x86 system call interface was added. The
1250 AT_SYSINFO auxiliary vector entry is recognized and handled.
1254 * Masahide Washizawa contributed iconv modules for IBM1163 and IBM1164
1257 * iconv (the program and the interface) now accepts empty names (excluding
1258 options like //TRANSLIT) to mean "use charset of current locale".
1260 * localedef can now transliterate characters in strings which are not in
1261 the provided charmap. The information from the input locale is used.
1263 * Prelinking support was added for ELF targets. This requires additional
1264 tools and recent versions of the GNU binutils. Contributed by Jakub Jelinek.
1266 * Read-only stdio streams now use mmap to speed up operation by eliminating
1267 copying and buffer underflows. To use add 'm' to the mode string of
1268 the fopen/fdopen/freopen call. Implemented by Ulrich Drepper.
1270 * The malloc functions were completely rewritten by Wolfram Gloger based
1271 on Doug Lea's malloc-2.7.0.c.
1273 * Isamu Hasegawa contributed a completely new and POSIX-conformant
1274 implementation of regex.
1276 * Bruno Haible upgraded the iconv and locale implementation to support
1279 * Contents of the LC_* and LANG environment variables in the CEN style are
1280 not recognized anymore. It never was used. Change by Ulrich Drepper.
1282 * The runtime (ld.so, libc, libpthread for Linux) now can handle the ELF
1283 thread-local storage (TLS) ABI on some platforms.
1284 Changes by Ulrich Drepper. SH support by Kaz Kojima.
1286 * Bruno Haible contributed iconv converters for ISO-2022-JP-3, SHIFT JIS-X0213,
1287 EUC-JISX0213, and TSCII.
1289 * New header <ifaddrs.h> with functions `getifaddrs' and `freeifaddrs':
1290 BSD-compatible interface for getting all network interface addresses.
1291 Implementation for IPv4 by Roland McGrath.
1293 * Loading of locale data is faster due to the introduction of a locale
1294 archive. Implemented by Roland McGrath and Ulrich Drepper.
1296 * Startup times are significantly reduced by not using exported functions
1297 inside the library itself. Changes by Jakub Jelinek, Roland McGrath,
1300 * Steven Munroe contributed a port to PowerPC64/Linux.
1304 * The Hurd now uses the GNU libio implementation of stdio rather than the
1305 old GNU stdio implementation, and uses a new ABI (libc.so.0.3).
1307 * The Hurd on x86 now has the `ioperm' function and <sys/io.h> header file
1308 with the same behavior as the Linux system call of the same name.
1312 * Stephen Moshier implemented log2, log10, powl and cbrtl for the
1313 128-bit long double format.
1315 * Masahide Washizawa contributed iconv modules for IBM1132, IBM1133, IBM1160,
1316 IBM1161, and IBM1162 charsets.
1318 * Andreas Jaeger contributed a port to x86-64/Linux.
1320 * Peter Bruin contributed a port to PowerPC/Hurd.
1322 * libc functions using I/O streams now can handle wide-oriented streams
1325 * optimizations in the dynamic linker. Binaries created by recent binutils
1326 versions start up quicker due to reduced time spent on relocations.
1328 * Support for use of gcc3 added by Jakub Jelinek and HJ Lu.
1332 * Stephen Moshier implemented cosh, expm1, log1p, acos, sinh, tanh,
1333 asinh, atanh, j0 for the 128-bit long double format.
1335 * Bruno Haible updated all the code handling Unicode in some form to
1336 support Unicode 3.1.
1338 * Speed of regex for single-byte locales is back to previous levels.
1339 Patch by Isamu Hasegawa.
1341 * Alpha, SPARC, and IA-64 now also using floating stacks.
1343 * Startup time of internationalized applications greatly improved through
1344 iconv cache. Use iconvconfig to generate the cache file.
1345 Contributed by Ulrich Drepper.
1347 * The IA-64 specific part of ld.so was rewritten to eliminate some pretty
1348 severe performance problems. Patch by David Mosberger.
1350 * The Hurd port got a lot more functionality like AIO, various stdio
1351 extensions, etc. Mainly done by Roland McGrath.
1353 * mtrace can now lookup symbols in shared libraries.
1357 * Intel's IA-64 math library is largely integrated. It provides fast and
1358 accurate implementatations for most basic and standard math functions
1359 in float, double, and long double format.
1361 * Stephen Moshier implemented j0, j1, jn, y0, y1, yn, lgamma, erf, erfc,
1362 and asin for the 96-bit long double format and asin, log, tan for the
1363 128-bit long double format.
1365 * The beginning of a last-bit accurate math library by IBM Haifa were added.
1366 The basic double functions exist today. Contributed by Abraham Ziv
1367 <ziv@il.ibm.com>, Moshe Olshansky <olshansk@il.ibm.com>, Ealan Henis
1368 <ealan@il.ibm.com>, and Anna Reitman <reitman@il.ibm.com>.
1370 * An asynchronous name lookup library was added. The interface is designed
1371 after POSIX AIO. The proposal was circulated beforehand to get comments.
1372 No negative ones came in. Implemented by Ulrich Drepper.
1374 * Port to S390/64bit contributed by Martin Schwidefsky
1375 <schwidefsky@de.ibm.com>.
1377 * David Mosberger <davidm@hpl.hp.com> implemented the setcontext family
1378 of functions for Linux/IA-64.
1380 * The RPC code is now thread safe. Threads can now use the same service
1381 of different services at the same time. Patch by Eric Norum
1382 <eric.norum@usask.ca> with some help by Ulrich Drepper.
1384 * Martin Schwidefsky <schwidefsky@de.ibm.com> implemented the setcontext
1385 family of functions for Linux/S390.
1387 * Ulrich Drepper <drepper@redhat.com> implemented the setcontext family
1388 of functions for Linux/x86.
1390 * Port to Linux/CRIS contributed by Axis Communications.
1394 * Lots of headers were cleaned up. Using the tool in the conform/ subdir
1395 we can now check for namespace violations and missing declarations. The
1396 result is that almost all headers are now Unix-compliant (as defined in
1397 the upcoming XPG6). The negative side is that some programs might need
1398 corrections, too, if they depend on the incorrect form of the headers in
1399 previous versions which defined too many symbols and included too many
1402 * regex now handles multibyte character sets correctly.
1403 Contributed by Isamu Hasegawa <isamu@yamato.ibm.com>.
1405 * iconv (the program) does now conform to the upcoming XPG6 and handles
1406 charmaps. Instead of the charset names the path of charmaps can be
1407 provided and the conversion happens based on this data.
1408 Contributed by Ulrich Drepper.
1410 * The locale program now provides detailed information about the installed
1415 only lists the names of the supported locales
1419 provides details such as country, language, and codeset name.
1420 Contributed by Ulrich Drepper.
1424 * The gencat program now parses the input file according to the charset
1425 selected by the LC_CTYPE category. This is important for stateful
1426 character sets. To make generating catalogs easier there is a way
1427 to overwrite the charset selected by the locale: before the first
1428 message or $ quote line the catalog can contain a line like
1430 $ codeset=ISO-8859-2
1432 to select the charset (ISO-8859-2 in this case).
1434 Implemented by Shinya Hanataka and Ulrich Drepper.
1436 * New codeset conversion modules: IBM-922 (Estonia PC codeset),
1437 IBM-1124 (Ukraine PC codeset), IBM-1129 (Vietnamese PC codeset).
1438 Contributed by Masahide Washizawa <washi@jp.ibm.com>.
1440 * Optimized string functions for Alpha ev6 and ev67 by Richard Henderson
1441 <rth@redhat.com> and Rick Gorton <rick.gorton@alpha-processor.com>.
1443 * The LANGUAGE environment variable is now ignored unless the locale is
1444 changed from the default "C" locale.
1446 * The usual bug fixes.
1450 * Greg McGary added runtime support for bounds checking using gcc's
1451 new -fbounded-pointers option. ix86 target is complete. PowerPC
1454 * Thorsten Kukuk added secure mode support to nscd.
1456 * The Berkeley db libraries have been removed.
1458 Related, the nss_db module is now in a separate package since it
1459 obviously requires a database library being available.
1461 * Wide character I/O streams implemented by Ulrich Drepper.
1463 * Functions from the extended socket API added by Ulrich Drepper.
1465 * Functions feenableexcept and fedisableexcept to control the
1466 behaviour of individual exceptions have been added by Andreas Jaeger.
1468 * ldconfig program added by Andreas Jaeger and Jakub Jelinek.
1470 * The resolver code has been updated from bind 8.2.3-T5B which supports
1471 threads. The integration was done by Andreas Jaeger, Adam D. Bradley,
1474 This change could in some situations effect backward compatibility. Since
1475 now `_res' is a thread-local instead of a global variable, modifying it
1476 in one thread does not have any effect in other threads.
1478 The resolver library was also extended to allow IPv6 as the transport
1479 protocol for the requests. This work was done by Stig Venaas.
1481 * Compatibility code for K&R C compilers has been removed from the
1482 header files. A ISO C compiler is needed to use the library
1483 (conforming to either C89 or C99 standard).
1485 * Complete rewrite of the localedef program to support multibyte character
1486 sets. Implement handling of ISO 14651 and ISO 14652. Rewrite strcoll,
1487 strxfrm, wcscoll, and wcsxfrm functions. Make isw*() functions work.
1488 Implemented by Ulrich Drepper.
1490 Bruno Haible significantly improved the generation and use of the data
1491 structures for the wide character tables.
1493 * Plural handling in gettext implemented by Ulrich Drepper.
1495 * The utmp daemon has been removed.
1497 * The port to MIPS-Linux has been finished by Andreas Jaeger.
1499 * A port to Hitachi SH3 and SH4 has been contributed by Kazumoto Kojima
1502 * POSIX clocks and timers implemented by Kaz Kylheku and Ulrich Drepper.
1504 * POSIX barriers implemented by Kaz Kylheku.
1506 * POSIX spawn function family implemented by Ulrich Drepper.
1508 * POSIX spinlocks are now available.
1510 * Timed wait functions for mutex, rwlock, and semaphores are implemented.
1512 * the configure option --enable-kernel=X.Y.Z allows to strip out
1513 compatibility for kernel versions before X.Y.Z. This is currently only
1514 implemented for Linux.
1516 * the sockaddr_in6 structure changed. The IPv6 working group added a new
1517 field sin6_scope_id. This means that all programs using IPv6 should be
1518 recompiled. Don't expect binary compatibility with previous glibc
1521 * various conversion modules for IBM character sets contributed by
1524 * IA-64 port by Jes Sorensen and HJ Lu.
1538 * New ISO C 9x function _Exit, imaxabs, and imaxdiv are added.
1540 * New xdr functions are added; some rpc functions are now 64bit clean.
1542 * Fixed a number of bugs and memory leaks (especially in NIS+ code).
1544 * Fixed known incompatibilities with glibc 2.0.
1546 * New functions lock64, strchrnul, rawmemchr, getutmp and getutmpx.
1548 * Optimized a number of functions (especially the ELF dynamic loader).
1550 * Update timezone data files.
1552 * lots of charmaps corrections
1554 * some new locale definitions and charmaps
1559 * Richard Henderson corrected size of struct timeval on Linux/Alpha to
1560 conform to POSIX member type requirements. Symbol versions have been
1561 adjusted as needed within the library, and for direct use by applications,
1562 but there is potential for problems if third-party libraries use
1563 struct timeval as part of their interface. This does not present
1564 a problem for X and other "essential" system libraries.
1566 * An additional locale model to support C++ Standard Library locale
1567 model and probably more was implemented by Ulrich Drepper.
1569 * Eric Youngdale and Ulrich Drepper implemented versioning of objects on
1572 * Miles Bader provided the `argp' function family to support hierachical
1573 command line argument parsing, layered on top of getopt.
1575 * strtod accepts new hexadecimal floating-point format from ISO C 9X.
1577 * printf has two new specifiers %a and %A to print hexadecimal flaoting-point
1580 * scanf recognizes the %a and %A format for scanning floating point numbers.
1582 * the new headers <stdint.h> and <inttypes.h> from ISO C 9X provides
1583 information and interfaces for the available integer types.
1585 * about 130 new math functions were added to implement the ISO C9x math
1588 * the new header <complex.h> contains definitions of the complex math
1589 functions from ISO C 9X.
1591 * the new header <tgmath.h> defines generic macros to use complex or
1592 real valued functions.
1594 * Thorsten Kukuk provided an implementation for NIS+, securelevel 0, 1 and 2.
1596 * Andreas Jaeger provided a test suite for the math library.
1598 * Mark Kettenis implemented the utmpx interface and an utmp daemon.
1600 * Ulrich Drepper added character set conversion functions (iconv).
1602 * Optimized string functions have been added.
1604 * The localedata addon is now part of glibc.
1606 * An implementation of profiling shared libraries was added by Ulrich Drepper.
1608 * Thorsten Kukuk and Ulrich Drepper provided an implementation for a caching
1609 daemon for NSS (nscd).
1611 Missing a better place here are some numbers on improvements. Under
1612 Linux 2.1.125 un-tar-ing the kernel sources takes
1616 using local files 12.19s 6.88s 22.91s
1618 using NIS 13.92s 8.91s 26.34s
1620 using NIS & nscd 10.37s 7.34s 25.30s
1622 using NIS+ 27.57s 30.37s 640.46s
1624 using NIS+ & nscd 10.25s 7.83s 26.51s
1626 using NIS & old nscd [1] 13.83s 8.32s 29.60s
1628 Keep in mind that non-namelookup related operations dominate above times.
1629 It was just a common complain that using NIS+ unpacking the kernel is
1632 [1] The old nscd implementation is not available anymore since it was
1633 distributed with glibc up to version 2.0.98 and thus is now replaced.
1635 * Tim Waugh provided an implementation of the POSIX.2 wordexp function family.
1637 * Mark Kettenis provided a Hesiod NSS module.
1639 * The ELF dynamic loader knows how to process dynamic string tokens ($ORIGIN
1640 and $PLATFORM) in RPATHs and similar strings (Ulrich Drepper).
1642 * rcmd can now handle netgroups (Dick Streefland).
1644 * A port to the ARM was contributed by Phil Blundell, Pat Beirne and Scott
1647 * Support for the IPv6 protocol has been added to the socket API, as per the
1648 latest draft standards.
1650 * Support for Linux 2.2 has been added.
1652 * Interface changes relative to the latest 2.0.x release:
1653 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1654 addseverity NEW: Unix98
1655 alphasort64 NEW: LFS
1656 argp_err_exit_status NEW: argp, GNU ext
1657 argp_error NEW: argp, GNU ext
1658 argp_failure NEW: argp, GNU ext
1659 argp_help NEW: argp, GNU ext
1660 argp_parse NEW: argp, GNU ext
1661 argp_program_bug_address NEW: argp, GNU ext
1662 argp_program_version NEW: argp, GNU ext
1663 argp_program_version_hook NEW: argp, GNU ext
1664 argp_state_help NEW: argp, GNU ext
1665 argp_usage NEW: argp, GNU ext
1666 authdes_create NEW: Secure RPC
1667 authdes_getucred NEW: Secure RPC
1668 authdes_pk_create NEW: Secure RPC
1669 backtrace NEW: GNU ext.
1670 backtrace_symbols NEW: GNU ext.
1671 backtrace_symbols_fd NEW: GNU ext.
1673 cacosf NEW: ISO C 9x
1674 cacosh NEW: ISO C 9x
1675 cacoshf NEW: ISO C 9x
1676 cacoshl NEW: ISO C 9x
1677 cacosl NEW: ISO C 9x
1684 casinf NEW: ISO C 9x
1685 casinh NEW: ISO C 9x
1686 casinhf NEW: ISO C 9x
1687 casinhl NEW: ISO C 9x
1688 casinl NEW: ISO C 9x
1690 catanf NEW: ISO C 9x
1691 catanh NEW: ISO C 9x
1692 catanhf NEW: ISO C 9x
1693 catanhl NEW: ISO C 9x
1694 catanl NEW: ISO C 9x
1695 cbc_crypt NEW: Secure RPC
1699 ccoshf NEW: ISO C 9x
1700 ccoshl NEW: ISO C 9x
1706 cimagf NEW: ISO C 9x
1707 cimagl NEW: ISO C 9x
1708 clearerr_locked REMOVED
1709 clntunix_create NEW: sunrpc ext
1711 clog10 NEW: ISO C 9x
1712 clog10f NEW: ISO C 9x
1713 clog10l NEW: ISO C 9x
1723 cprojf NEW: ISO C 9x
1724 cprojl NEW: ISO C 9x
1726 crealf NEW: ISO C 9x
1727 creall NEW: ISO C 9x
1732 csinhf NEW: ISO C 9x
1733 csinhl NEW: ISO C 9x
1736 csqrtf NEW: ISO C 9x
1737 csqrtl NEW: ISO C 9x
1741 ctanhf NEW: ISO C 9x
1742 ctanhl NEW: ISO C 9x
1744 des_setparity NEW: Secure RPC
1745 ecb_crypt NEW: Secure RPC
1746 endutxent NEW: Unix98
1748 exp10f NEW: ISO C 9x
1749 exp10l NEW: ISO C 9x
1753 fattach NEW: STREAMS
1754 fdetach NEW: STREAMS
1758 feclearexcept NEW: ISO C 9x
1759 fegetenv NEW: ISO C 9x
1760 fegetexceptflag NEW: ISO C 9x
1761 fegetround NEW: ISO C 9x
1762 feholdexcept NEW: ISO C 9x
1764 feraiseexcept NEW: ISO C 9x
1765 ferror_locked REMOVED
1766 fesetenv NEW: ISO C 9x
1767 fesetexceptflag NEW: ISO C 9x
1768 fesetround NEW: ISO C 9x
1769 fetestexcept NEW: ISO C 9x
1770 feupdateenv NEW: ISO C 9x
1771 fflush_locked REMOVED
1775 fgets_unlocked NEW: GNU ext.
1776 fileno_locked REMOVED
1788 fputc_locked REMOVED
1789 fputs_unlocked NEW: GNU ext.
1790 fread_unlocked NEW: GNU ext.
1795 fstatvfs NEW: Unix98
1799 ftruncate64 NEW: LFS
1801 fwrite_unlocked NEW: GNU ext.
1802 gai_strerror NEW: IPv6
1806 getchar_locked REMOVED
1808 getdate_err NEW: Unix98
1809 getdate_r NEW: GNU ext.
1811 getnameinfo NEW: IPv6
1812 getnetname NEW: Secure RPC
1813 getpmsg NEW: STREAMS
1814 getpt NEW: Unix98 PTY
1815 getrlimit64 NEW: LFS
1816 getutxent NEW: Unix98
1817 getutxid NEW: Unix98
1818 getutxline NEW: Unix98
1819 glob64 NEW: GNU ext.
1820 globfree64 NEW: GNU ext.
1821 gnu_get_libc_release NEW: GNU ext.
1822 gnu_get_libc_version NEW: GNU ext.
1823 grantpt NEW: Unix98 PTY
1824 host2netname NEW: Secure RPC
1826 iconv_close NEW: iconv
1827 iconv_open NEW: iconv
1828 if_freenameindex NEW: IPv6
1829 if_indextoname NEW: IPv6
1830 if_nameindex NEW: IPv6
1831 if_nametoindex NEW: IPv6
1832 in6addr_any NEW: IPv6
1833 in6addr_loopback NEW: IPv6
1834 inet6_isipv4mapped NEW: IPv6
1835 isastream NEW: STREAMS
1836 iswblank NEW: GNU ext.
1837 key_decryptsession NEW: Secure RPC
1838 key_decryptsession_pk NEW: Secure RPC
1839 key_encryptsession NEW: Secure RPC
1840 key_encryptsession_pk NEW: Secure RPC
1841 key_gendes NEW: Secure RPC
1842 key_get_conv NEW: Secure RPC
1843 key_secretkey_is_set NEW: Secure RPC
1844 key_setnet NEW: Secure RPC
1845 key_setsecret NEW: Secure RPC
1846 llrint NEW: ISO C 9x
1847 llrintf NEW: ISO C 9x
1848 llrintl NEW: ISO C 9x
1849 llround NEW: ISO C 9x
1850 llroundf NEW: ISO C 9x
1851 llroundl NEW: ISO C 9x
1856 lrintf NEW: ISO C 9x
1857 lrintl NEW: ISO C 9x
1858 lround NEW: ISO C 9x
1859 lroundf NEW: ISO C 9x
1860 lroundl NEW: ISO C 9x
1862 makecontext NEW: Unix98
1863 mempcpy NEW: GNU ext.
1866 modify_ldt NEW: kernel
1870 nearbyint NEW: ISO C 9x
1871 nearbyintf NEW: ISO C 9x
1872 nearbyintl NEW: ISO C 9x
1873 netname2host NEW: Secure RPC
1874 netname2user NEW: Secure RPC
1875 nexttoward NEW: ISO C 9x
1876 nexttowardf NEW: ISO C 9x
1877 nexttowardl NEW: ISO C 9x
1881 passwd2des NEW: Secure RPC
1883 pow10f NEW: GNU ext.
1884 pow10l NEW: GNU ext.
1887 printf_size NEW: GNU ext.
1888 printf_size_info NEW: GNU ext.
1889 profil_counter REMOVED
1890 pthread_mutexattr_getkind_np REPLACED
1891 pthread_mutexattr_setkind_np REPLACED
1892 ptsname NEW: Unix98 PTY
1893 ptsname_r NEW: Unix98 PTY
1895 putchar_locked REMOVED
1896 putgrent NEW: GNU ext.
1898 putpmsg NEW: STREAMS
1899 pututxline NEW: Unix98
1903 readdir64_r NEW: LFS
1904 remquo NEW: ISO C 9x
1905 remquof NEW: ISO C 9x
1906 remquol NEW: ISO C 9x
1908 roundf NEW: ISO C 9x
1909 roundl NEW: ISO C 9x
1911 scalbln NEW: ISO C 9x
1912 scalblnf NEW: ISO C 9x
1913 scalblnl NEW: ISO C 9x
1915 sendfile NEW: kernel
1916 setcontext NEW: Unix98
1917 setrlimit64 NEW: LFS
1918 setutxent NEW: Unix98
1920 sigignore NEW: Unix98
1921 sigqueue NEW: POSIX.1b
1922 sigrelse NEW: Unix98
1923 sigset NEW: POSIX.1b
1924 sigtimedwait NEW: POSIX.1b
1925 sigwaitinfo NEW: POSIX.1b
1926 sincos NEW: GNU ext.
1927 sincosf NEW: GNU ext.
1928 sincosl NEW: GNU ext.
1932 strcasestr NEW: GNU ext.
1933 strtoimax NEW: ISO C 9x
1934 strtoumax NEW: ISO C 9x
1935 strverscmp NEW: GNU ext.
1936 svcauthdes_stats NEW: Secure RPC
1937 svcunix_create NEW: sunrpc etx
1938 svcunixfd_create NEW: sunrpc ext
1939 swapcontext NEW: Unix98
1940 tcgetsid NEW: Unix98 PTY
1941 tdestroy NEW: GNU ext.
1942 tgamma NEW: ISO C 9x
1943 tgammaf NEW: ISO C 9x
1944 tgammal NEW: ISO C 9x
1948 truncf NEW: ISO C 9x
1949 truncl NEW: ISO C 9x
1951 unlockpt NEW: Unix98 PTY
1952 updwtmpx NEW: Unix98
1953 user2netname NEW: Secure RPC
1954 utmpxname NEW: Unix98
1955 versionsort NEW: GNU ext.
1956 versionsort64 NEW: GNU ext.
1958 wcscasecmp NEW: GNU ext.
1959 wcsncasecmp NEW: GNU ext.
1960 wcsnlen NEW: GNU ext.
1961 wcstoimax NEW: ISO C 9x
1962 wcstoll NEW: ISO C 9x
1963 wcstoull NEW: ISO C 9x
1964 wcstoumax NEW: ISO C 9x
1966 wordexp NEW: POSIX.2
1967 wordfree NEW: POSIX.2
1968 write_profiling REMOVED
1969 xdecrypt NEW: Secure RPC
1970 xdr_authdes_cred NEW: Secure RPC
1971 xdr_authdes_verf NEW: Secure RPC
1972 xdr_cryptkeyarg NEW: Secure RPC
1973 xdr_cryptkeyarg2 NEW: Secure RPC
1974 xdr_cryptkeyres NEW: Secure RPC
1975 xdr_getcredres NEW: Secure RPC
1976 xdr_key_netstarg NEW: Secure RPC
1977 xdr_key_netstres NEW: Secure RPC
1978 xdr_keybuf NEW: Secure RPC
1979 xdr_keystatus NEW: Secure RPC
1980 xdr_netnamestr NEW: Secure RPC
1981 xdr_sizeof NEW: Secure RPC
1982 xdr_unixcred NEW: sunrpc ext
1983 xencrypt NEW: Secure RPC
1984 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1995 * inet_ntoa is thread-safe
1997 * updwtmp is moved from libutil to libc
1999 * rewrite of cbrt function
2001 * update of timezone data
2015 * add atoll function
2017 * fix complex problems in Berkeley DB code
2019 * fix math functions
2023 * fixed lots of header problems (especially Linux/GNU specific)
2025 * dynamic loader preserves all registers
2027 * Roland McGrath provided support for handling of auxiliary objects in
2028 the ELF dynamic loader.
2030 * support for parallel builds is improved
2034 * GNU extensions are no longer declared by default. To enable them you
2035 must define the macro `_GNU_SOURCE' in your program or compile with
2038 * The library has changed from using GNU ld symbol aliases to using weak
2039 symbols where available. The ELF object file format supports weak
2040 symbols; GNU ld also supports weak symbols in the a.out format. (There
2041 is also now support for other GNU ld extensions in ELF. Use the
2042 `--with-elf' option to configure to indicate you have ELF, and
2043 `--with-gnu-ld' if using GNU ld.) This change resulted in the deletion
2044 of many files which contained only symbol aliases, reducing the size of
2045 the source and the compiled library; many other files were renamed to
2046 less cryptic names previously occupied by the symbol alias files.
2047 There is a new header file <elf.h> for programs which operate on
2048 files in the ELF format.
2050 * Converted to Autoconf version 2, so `configure' has more options.
2051 Run `configure --help' to see the details.
2053 * The library can now be configured to build profiling, highly-optimized
2054 (but undebuggable), and/or shared libraries (ELF with GNU ld only). The
2055 `--enable-profile', `--enable-omitfp', and `--enable-shared' options to
2056 `configure' enable building these extra libraries. The shared library is
2057 built by default when using both ELF and GNU ld. When shared libraries
2058 are enabled, the new library `-ldl' is available for arbitrary run-time
2059 loading of shared objects; its interface is defined in <dlfcn.h>. The
2060 new header file <link.h> gives access to the internals of the run-time
2061 dynamic linker, `ld.so'. The shell script `ldd' is similar to the
2062 application of same name on other systems and it provides information
2063 about dynamically linked binaries.
2065 * The C library now provides the run-time support code for profiling
2066 executables compiled with `-pg'. Programs can control the profiling code
2067 through the interface in <sys/gmon.h>. The `gmon.out' files written by
2068 the GNU C library can be read only by GNU `gprof' (from GNU binutils);
2069 the support for this file format was contributed by David Mosberger-Tang.
2071 * The math code has been replaced with a math library based on fdlibm from
2072 Sun, and modified by JT Conklin and Ulrich Drepper with i387 support, by
2073 Ian Taylor with `float' functions and by Ulrich Drepper with `long double'
2074 functions. The math functions now reside in a separate library, so
2075 programs using them will need to use `-lm' their linking commands.
2077 * John C. Bowman contributed optimized ix87 assembler inline functions.
2079 * Ulrich Drepper has contributed support for an `/etc/nsswitch.conf'
2080 mechanism similar to that found in Solaris 2. This is now used for the
2081 group, passwd, hosts, networks, services, protocols, rpc, ethers,
2082 shadow, netgroup, publickey, and alias databases. The `nsswitch.conf'
2083 file controls what services are used for each individual database. This
2084 works by loading shared libraries with names specified in `nsswitch.conf',
2085 so service modules can be changed or added at any time without even
2086 relinking any program. Currently there are the file, db, and NIS based
2087 NSS services available.
2089 * The new functions `strtoq' and `strtouq' parse integer values from
2090 strings, like `strtol' and `strtoul', but they return `long long int' and
2091 `unsigned long long int' values, respectively (64-bit quantities).
2093 * The new functions `strtof' and `strtold' parse floating-point values from
2094 strings, like `strtod', but they return `float' and `long double' values,
2095 respectively (on some machines `double' and `long double' are the same).
2097 * Ulrich Drepper has contributed new implementations of the floating-point
2098 printing and reading code used in the `printf' family of functions and
2099 `strtod', `strtof', and `strtold'. These new functions are perfectly
2100 accurate, and much faster than the old ones.
2102 * The implementation of the POSIX locale model was completely rewritten by
2103 Ulrich Drepper. This includes the new programs `localedef' and `locale'
2104 to compile the POSIX locale definition.
2106 * The former dummy implementations of the strcoll and strxfrm function are
2107 now replaced by fully functional code contributed by Ulrich Drepper. The
2108 collation information comes from the POSIX locale definitions.
2110 * The new header <langinfo.h> defines an interface for accessing
2111 various locale-dependent data (using the locale chosen with `setlocale').
2113 * Ulrich Drepper has contributed a new suite of functions for operation on
2114 wide-character and multibyte-character strings, in <wchar.h>;
2115 and classification and case conversion of wide characters, in <wctype.h>.
2116 These new functions are conforming to the ISO C, Amendement 1 specification.
2118 * There is now a second implementation of the standard I/O library available.
2119 It comes from GNU libg++ as was written by Per Bothner, heavily modified
2120 by Hongjiu Lu and made thread safe by Ulrich Drepper.
2122 * You can now use positional parameter specifications in format strings
2123 for the `printf' and `scanf' families of functions. For example,
2124 `printf ("Number %2$d, Mr %1$s\n", "Jones", 6);'' prints
2125 ``Number 6, Mr Jones''. This is mainly useful when providing different
2126 format strings for different languages, whose grammars may dictate
2127 different orderings of the values being printed. To support this
2128 feature, the interface for `register_printf_handler' has changed; see
2129 the header file <printf.h> for details.
2131 * The `printf' and `scanf' families of functions now understand a new
2132 formatting flag for numeric conversions: the ' flag (e.g. %'d or %'f) says
2133 to group numbers as indicated by the locale; for `scanf' and friends, this
2134 says to accept as valid only a number with all the proper grouping
2135 separators in the right places. In the default "C" locale, numbers are
2136 not grouped; but locales for specific countries will define the usual
2137 conventions (i.e. separate thousands with `,' in the US locale).
2139 * The pgrp functions have been regularized, slightly incompatibly but much
2140 less confusingly. The core functions are now `getpgid' and `setpgid',
2141 which take arguments for the PID to operate on; the POSIX.1 `getpgrp' (no
2142 argument) and BSD `setpgrp' (identical to `setpgid') functions are
2143 provided for compatibility. There is no longer an incompatible `getpgrp'
2144 with an argument declared under _BSD_SOURCE; no BSD code uses it.
2146 * The new header file <fts.h> and suite of functions simplify programs that
2147 operate on directory trees. This code comes from 4.4 BSD.
2149 * The resolver code has been updated from the BIND 4.9.5-P1 release.
2150 Parts of the code were heavily modified by Ulrich Drepper to fit in the
2151 NSS scheme used in glibc.
2153 * There is a new malloc debugging hook `__memalign_hook'.
2155 * There are new typedefs `ushort' for `unsigned short int' and `uint' for
2156 `unsigned int' in <sys/types.h>. These are for compatibility only and
2157 their use is discouraged.
2159 * The `-lmcheck' library to enable standard malloc debugging hooks is now
2160 done differently, so that it works even without GNU ld.
2162 * New function `euidaccess' checks allowed access to a file like `access',
2163 but using the effective IDs instead of the real IDs.
2165 * The time zone data files have been updated for the latest and greatest
2166 local time conventions of the countries of the world.
2168 * The new function `dirfd' extracts the file descriptor used by a DIR stream;
2171 * The new functions `ecvt', `fcvt', and `gcvt' provide an obsolete interface
2172 for formatting floating-point numbers. They are provided only for
2173 compatibility; new programs should use `sprintf' instead. There are
2174 also equivalent function for the `long double' floating-point type and
2175 all functions also exist in a reentrant form.
2177 * The new auxiliary library `-lutil' from 4.4 BSD contains various
2178 functions for maintaining the login-record files (primarily of use to
2179 system programs such as `login'), and convenient functions for
2180 allocating and initializing a pseudo-terminal (pty) device.
2182 * Ulrich Drepper has contributed new support for System V style
2183 shared memory and IPC on systems that support it.
2185 * Ulrich Drepper has contributed several miscellaneous new functions found
2186 in System V: The `hsearch' family of functions provide an effective
2187 implementation of hash tables; `a64l' and `l64a' provide a very simple
2188 binary to ASCII mapping; `drand48' and friends provide a 48-bit random
2191 * Ulrich Drepper has contributed new reentrant counterparts for the
2192 `random' and `hsearch' families of functions; `random_r', `hsearch_r', etc.
2194 * Ulrich Drepper has contributed new, highly-optimized versions of several
2195 string functions for the i486/Pentium family of processors.
2197 * Ulrich Drepper has updated the Linux-specific code, based largely
2198 on work done in Hongjiu Lu's version of GNU libc for Linux.
2199 The GNU library now supports Linux versions 2.0.10 and later,
2200 using the ELF object file format (i[3456]86-*-linux).
2202 * Andreas Schwab has ported the C library to Linux/m68k (m68k-*-linux).
2204 * David Mosberger-Tang and Richard Henderson have ported the C library
2205 to Linux/Alpha (alpha-*-linux). Richard Henderson contributed the
2206 dynamic linking support for ELF/Alpha.
2208 * Richard Henderson contributed several Alpha optimized assembler function
2209 for arithmetic and string handling.
2211 * Ulrich Drepper has contributed a new set of message catalog functions to
2212 support multiple languages using the <libintl.h> interface, for use with
2213 his new package GNU gettext. Translation volunteers have contributed
2214 catalogs of the library's messages in Spanish, German, and Korean.
2216 * For compatibility with XPG4, Ulrich Drepper has contributed the `gencat'
2217 program and the `catgets' function for reading the catalog files it
2218 creates. (The <libintl.h> interface is preferred; we include the
2219 <nl_types.h> interface using `catgets' only for source compatibility with
2220 programs already written to use it.)
2222 * New header file <values.h> gives SVID-compatible names for <limits.h>
2225 * Various new macros, declarations, and small header files for compatibility
2228 * New function `group_member' is a convenient way to check if a process has
2229 a given effective group ID.
2231 * When using GCC 2.7 and later, the socket functions are now declared in a
2232 special way so that passing an argument of type `struct sockaddr_in *',
2233 `struct sockaddr_ns *', or `struct sockaddr_un *' instead of the generic
2234 `struct sockaddr *' type, does not generate a type-clash warning.
2236 * New function `error' declared in header file <error.h> is a convenient
2237 function for printing error messages and optionally exiting; this is the
2238 canonical function used in GNU programs. The new functions `err', `warn',
2239 and friends in header file <err.h> are the canonical 4.4 BSD interface for
2240 doing the same thing.
2242 * The <glob.h> interface has several new flags from 4.4 BSD that extend the
2243 POSIX.2 `glob' function to do ~ and {...} expansion.
2245 * New function `unsetenv' complements `setenv' for compatibility with 4.4 BSD.
2246 `clearenv' which is used in POSIX.9 is also available.
2248 * New function `getsid' returns session ID number on systems that support it.
2250 * We have incorporated the 4.4 BSD `db' library (version 1.85). New header
2251 files <db.h> and <mpool.h> provide a rich set of functions for several
2252 types of simple databases stored in memory and in files, and <ndbm.h> is
2253 an old `ndbm'-compatible interface using the `db' functions. Link with
2254 `-ldb' to get these functions.
2256 * New macro `strdupa' copies a string like `strdup', but uses local stack
2257 space from `alloca' instead of dynamic heap space from `malloc'.
2259 * New function `strnlen' is like `strlen' but searches only a given maximum
2260 number of characters for the null terminator. `stpncpy', `strndup' and
2261 `strndupa' are similar variants for the `stpcpy', `strdup' and `strdupa'
2264 * New function `statfs' in header <sys/statfs.h>.
2266 * The new <argz.h> and <envz.h> interfaces contributed by Miles Bader
2267 provide convenient functions for operating on blocks of null-terminated
2270 * A new suite of functions in <utmp.h> handle all the details of reading
2271 and writing the utmp file.
2273 * An implementation of the NIS/YP(tm) based NSS service was contributed by
2276 * Paul Eggert and Ulrich Drepper modified the `strftime' function to be
2277 completely POSIX compliant and also implemented the extended functionality
2278 to handle alternate digit representation and alternate era date formats.
2280 * Ulrich Drepper provided an implementation of the `strptime' function
2281 defined in XPG4.2 which transforms a string into a `struct tm' value.
2283 * Paul Eggert provided the tzselect shell script as part of the timezone
2284 code. The shell script makes it easy to select the correct timezone
2287 * The implementation of the malloc family of functions is completely replaced
2288 by a new implementation by Doug Lea with many improvements by Wolfram Gloger.
2289 The implementation uses the mmap function (if available) and it is
2290 optimized for the use in multi threaded programs.
2292 * Ulrich Drepper contributed a MD5 "encryption" for the crypt family of
2293 functions. This new functionality is usable by specifying a special
2294 salt string and it is compatible with implementation on *BSD systems.
2296 * Lots of functions from the XPG4.2 standard were added by Ulrich Drepper:
2297 `getsubopt' to handle second level command line options, `bsd_signal'
2298 to access BSD style `signal' functionality, the obsolete `regexp' style
2301 * the `lchown' function is available on system which support this
2304 * The implementation of the shadow password handling function was contributed
2307 * David Mosberger-Tang changed the SunRPC implementation to be 64bit safe.
2309 * POSIX.1g support was added. The <sys/select.h> header is available,
2310 `isfdtype' and `pselect' are implemented. Craig Metz contributed an
2311 implementation of `getaddrinfo'.
2315 * For cross-compilation you should now set `BUILD_CC' instead of `HOST_CC'.
2317 * New header file <fstab.h> and new functions `getfsspec', `getfsent' and
2318 friends, for parsing /etc/fstab. This code comes from 4.4 BSD.
2320 * The new function `daemon' from 4.4 BSD is useful for server programs that
2321 want to put themselves in the background.
2323 * Joel Sherrill has contributed support for several standalone boards that
2324 run without an operating system.
2326 * `printf', `scanf' and friends now accept a `q' type modifier for long
2327 long int as well as `ll'. Formats using these might be `%qu' or `%lld'.
2329 * All of the code taken from BSD (notably most of the math and networking
2330 routines) has been updated from the BSD 4.4-Lite release.
2332 * The resolver code has been updated from the BIND-4.9.3-BETA9 release.
2334 * The new functions `getdomainname' and `setdomainname' fetch or change the
2335 YP/NIS domain name. These are system calls which exist on systems which
2338 * The time zone data files have been updated for the latest international
2341 * The SunRPC programs `portmap' and `rpcinfo' are now installed in
2342 $(sbindir) (usually /usr/local/sbin) instead of $(bindir).
2346 * The C library now includes support for Sun RPC, from Sun's free
2347 RPCSRC-4.0 distribution. The `portmap', `rpcinfo', and `rpcgen' programs
2348 are included. (There is still no support for YP.)
2350 * Tom Quinn has contributed a port of the C library to SGI machines running
2351 Irix 4 (mips-sgi-irix4).
2353 * The new `lockf' function is a simplified interface to the locking
2354 facilities of `fcntl', included for compatibility.
2356 * New time functions `timegm', `timelocal', and `dysize' for compatibility.
2358 * New header file <sys/timeb.h> and new function `ftime' for compatibility.
2360 * New header files <poll.h> and <sys/poll.h> and new function `poll' for
2363 * The error message printed by `assert' for a failed assertion now includes
2364 the name of the program (if using GNU ld) and the name of the calling
2365 function (with versions of GCC that support this).
2367 * The `psignal' function is now declared in <signal.h>, not <stdio.h>.
2369 * The library now includes the <sys/mman.h> header file and memory
2370 management functions `mmap', `munmap', `mprotect', `msync', and
2371 `madvise', on systems that support those facilities.
2373 * The interface for `mcheck' has changed slightly: the function called to
2374 abort the program when an allocation inconsistency is detected now takes
2375 an argument that indicates the type of failure. The new function
2376 `mprobe' lets you request a consistency check for a particular block at
2377 any time (checks are normally done only when you call `free' or `realloc'
2380 * It is now possible to easily cross-compile the C library, building on one
2381 system a library to run on another machine and/or operating system. All
2382 you need to do is set the variable `HOST_CC' in `configparms' to the
2383 native compiler for programs to run on the machine you are building on (a
2384 few generator programs are used on Unix systems); set `CC' to the
2387 * The new function `fexecve' (only implemented on the GNU system) executes
2388 a program file given a file descriptor already open on the file.
2392 * Brendan Kehoe has contributed most of a port to the DEC Alpha
2393 running OSF/1 (alpha-dec-osf1). He says it is 75% complete.
2395 * You can set the variable `libprefix' in `configparms' to specify a prefix
2396 to be prepended to installed library files; this makes it easy to install
2397 the GNU C library to be linked as `-lgnuc' or whatever.
2399 * The new `stpncpy' is a cross between `stpcpy' and `strncpy': It
2400 copies a limited number of characters from a string, and returns the
2401 address of the last character written.
2403 * You no longer need to check for whether the installed `stddef.h' is
2404 compatible with the GNU C library. configure now checks for you.
2406 * You can now define a per-stream `fileno' function to convert the
2407 stream's cookie into an integral file descriptor.
2409 * ``malloc (0)'' no longer returns a null pointer. Instead, it
2410 allocates zero bytes of storage, and returns a unique pointer which
2411 you can pass to `realloc' or `free'. The behavior is undefined if
2412 you dereference this pointer.
2414 * The C library now runs on Sony NEWS m68k machines running either
2415 NewsOS 3 or NewsOS 4.
2417 * The new `syscall' function is a system-dependent primitive function
2418 for invoking system calls. It has the canonical behavior on Unix
2419 systems, including unreliable return values for some calls (such as
2420 `pipe', `fork' and `getppid').
2422 * The error code `EWOULDBLOCK' is now obsolete; it is always defined
2423 to `EAGAIN', which is the preferred name. On systems whose kernels
2424 use two distinct codes, the C library now translates EWOULDBLOCK to
2425 EAGAIN in every system call function.
2429 * The GNU C Library Reference Manual is now distributed with the library.
2430 `make dvi' will produce a DVI file of the printed manual.
2431 `make info' will produce Info files that you can read on line using C-h i
2432 in Emacs or the `info' program.
2433 Please send comments on the manual to bug-glibc-manual@gnu.org.
2435 * The library now supports SVR4 on i386s (i386-unknown-sysv4).
2437 * Brendan Kehoe has contributed a port to Sun SPARCs running Solaris 2.
2439 * Jason Merrill has contributed a port to the Sequent Symmetry running
2440 Dynix version 3 (i386-sequent-dynix).
2442 * The library has been ported to i386s running SCO 3.2.4 (also known as SCO
2443 ODT 2.0; i386-unknown-sco3.2.4) or SCO 3.2 (i386-unknown-sco3.2).
2445 * New function `memory_warnings' lets you arrange to get warnings when
2446 malloc is running out of memory to allocate, like Emacs gives you.
2448 * The C library now contains the relocating allocator used in Emacs 19 for
2449 its editing buffers. This allocator (ralloc) minimizes allocation
2450 overhead and fragmentation by moving allocated regions around whenever it
2451 needs to. You always refer to a ralloc'd region with a "handle" (a
2452 pointer to a pointer--an object of type `void **').
2454 * There is a new `printf' format: `%m' gives you the string corresponding
2455 to the error code in `errno'.
2457 * In `scanf' formats, you can now use `%as' or `%a[' to do the normal `%s'
2458 or `%[' conversion, but instead of filling in a fixed-sized buffer you
2459 pass, the `a' modifier says to fill in a `char **' you pass with a
2462 * The `fnmatch' function supports the new flag bits `FNM_LEADING_DIR' and
2463 `FNM_CASEFOLD'. `FNM_LEADING_DIR' lets a pattern like `foo*' match a
2464 name like `foo/bar'. `FNM_CASEFOLD' says to ignore case in matching.
2466 * `mkstemp' is a traditional Unix function to atomically create and open a
2467 uniquely-named temporary file.
2471 * The standard location for the file that says what the local timezone is
2472 has changed again. It is now `/usr/local/etc/localtime' (or more
2473 precisely, `${prefix}/etc/localtime') rather than `/etc/localtime'.
2475 * The distribution no longer contains any files with names longer than 14
2478 * `struct ttyent' has two new flag bits: TTY_TRUSTED and TTY_CONSOLE.
2479 These are set by the new `trusted' and `console' keywords in `/etc/ttys'.
2481 * New functions `ttyslot' and `syslog' from 4.4 BSD.
2485 * The configuration process has changed quite a bit. The `configure'
2486 script is now used just like the configuration scripts for other GNU
2487 packages. The `sysdeps' directory hierarchy is much rearranged.
2488 The file `INSTALL' explains the new scheme in detail.
2490 * The header files no longer need to be processed into ANSI C and
2491 traditional C versions. There is just one set of files to install, and
2492 it will work with ANSI or old C compilers (including `gcc -traditional').
2494 * Brendan Kehoe and Ian Lance Taylor have ported the library to the
2495 MIPS DECStation running Ultrix 4.
2497 * The Sun 4 startup code (crt0) can now properly load SunOS 4 shared libraries.
2498 Tom Quinn contributed the initial code. The GNU C library can NOT yet be
2499 made itself into a shared library.
2501 * Yet further improved support for the i386, running 4.3 BSD-like systems
2502 (such as Mach 3 with the Unix single-server), or System V.
2504 * New function `strncasecmp' to do case-insensitive string comparison
2505 with limited length.
2507 * New function `strsep' is a reentrant alternative to `strtok'.
2509 * New functions `scandir' and `alphasort' for searching directories.
2511 * New function `setenv' is a better interface to `putenv'.
2513 * Ian Lance Taylor has contributed an implementation of the SVID `ftw'
2514 function for traversing a directory tree.
2516 * The GNU obstack package is now also part of the C library.
2517 The new function `open_obstack_stream' creates a stdio stream that
2518 writes onto an obstack; `obstack_printf' and `obstack_vprintf' do
2519 formatted output directly to an obstack.
2521 * Miscellaneous new functions: reboot, nice, sigaltstack (4.4 BSD only),
2522 cfmakeraw, getusershell, getpass, swab, getttyent, seteuid, setegid.
2524 * `FNM_FILE_NAME' is another name for `FNM_PATHNAME', used with `fnmatch'.
2526 * The new functions `strfry' and `memfrob' do mysterious and wonderful
2527 things to your strings.
2529 * There are some new test programs: test-fseek, testmb, and testrand.
2531 * Some work has been done to begin porting the library to 4.4 BSD and Linux.
2532 These ports are not finished, but are a good starting place for really
2533 supporting those systems.
2535 * `/etc/localtime' is now the standard location for the file that says what
2536 the local timezone is, rather than `/usr/local/lib/zoneinfo/localtime'.
2537 This follows the general principle that `/etc' is the place for all local
2538 configuration files.
2540 * The C library header files now use `extern "C"' when used by the C++
2541 compiler, so the C library should now work with C++ code.
2543 * The header file <bstring.h> is gone. <string.h> now declares bcopy,
2544 bcmp, bzero, and ffs. (Update: nowadays these functions are declared
2547 * Mike Haertel (of GNU e?grep and malloc fame) has written a new sorting
2548 function which uses the `merge sort' algorithm, and is said to be
2549 significantly faster than the old GNU `qsort' function. Merge sort is
2550 now the standard `qsort' function. The new algorithm can require a lot
2551 of temporary storage; so, the old sorting function is called when the
2552 required storage is not available.
2554 * The C library now includes Michael Glad's Ultra Fast Crypt, which
2555 provides the Unix `crypt' function, plus some other entry points.
2557 * The code and header files taken from 4.4 BSD have been updated with the
2558 latest files released from Berkeley.
2560 ----------------------------------------------------------------------
2561 Copyright information:
2563 Copyright (C) 1992-2014 Free Software Foundation, Inc.
2565 Permission is granted to anyone to make or distribute verbatim copies
2566 of this document as received, in any medium, provided that the
2567 copyright notice and this permission notice are preserved,
2568 thus giving the recipient permission to redistribute in turn.
2570 Permission is granted to distribute modified versions
2571 of this document, or of portions of it,
2572 under the above conditions, provided also that they
2573 carry prominent notices stating who last changed them.
2576 version-control: never
projects / platform / upstream / glibc.git / blob