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,
20 * CVE-2104-7817 The wordexp function could ignore the WRDE_NOCMD flag
21 under certain input conditions resulting in the execution of a shell for
22 command substitution when the applicaiton did not request it. The
23 implementation now checks WRDE_NOCMD immediately before executing the
24 shell and returns the error WRDE_CMDSUB as expected.
26 * CVE-2012-3406 printf-style functions could run into a stack overflow when
27 processing format strings with a large number of format specifiers.
29 * The nss_dns implementation of getnetbyname could run into an infinite loop
30 if the DNS response contained a PTR record of an unexpected format.
32 * The minimum GCC version that can be used to build this version of the GNU
33 C Library is GCC 4.6. Older GCC versions, and non-GNU compilers, can
34 still be used to compile programs using the GNU C Library.
36 * The GNU C Library is now built with -Werror by default. This can be
37 disabled by configuring with --disable-werror.
39 * New locales: tu_IN, bh_IN, raj_IN, ce_RU.
41 * The obsolete sigvec function has been removed. This was the original
42 4.2BSD interface that inspired the POSIX.1 sigaction interface, which
43 programs have been using instead for about 25 years. Of course, ABI
44 compatibility for old binaries using sigvec remains intact.
46 * Merged gettext 0.19.3 into the intl subdirectory. This fixes building
47 with newer versions of bison.
51 * The following bugs are resolved with this release:
53 6804, 9894, 12994, 13347, 13651, 14308, 14770, 15119, 15132, 15347, 15514,
54 15698, 15804, 15894, 15946, 16002, 16064, 16095, 16194, 16198, 16275,
55 16284, 16287, 16315, 16348, 16349, 16354, 16357, 16362, 16447, 16516,
56 16532, 16539, 16545, 16561, 16562, 16564, 16574, 16599, 16600, 16609,
57 16610, 16611, 16613, 16619, 16623, 16629, 16632, 16634, 16639, 16642,
58 16648, 16649, 16670, 16674, 16677, 16680, 16681, 16683, 16689, 16695,
59 16701, 16706, 16707, 16712, 16713, 16714, 16724, 16731, 16739, 16740,
60 16743, 16754, 16758, 16759, 16760, 16770, 16786, 16789, 16791, 16796,
61 16799, 16800, 16815, 16823, 16824, 16831, 16838, 16839, 16849, 16854,
62 16876, 16877, 16878, 16882, 16885, 16888, 16890, 16892, 16912, 16915,
63 16916, 16917, 16918, 16922, 16927, 16928, 16932, 16943, 16958, 16965,
64 16966, 16967, 16977, 16978, 16984, 16990, 16996, 17009, 17022, 17031,
65 17042, 17048, 17050, 17058, 17061, 17062, 17069, 17075, 17078, 17079,
66 17084, 17086, 17088, 17092, 17097, 17125, 17135, 17137, 17150, 17153,
67 17187, 17213, 17259, 17261, 17262, 17263, 17319, 17325, 17354.
69 * Optimized strchrnul implementation for AArch64. Contributed by ARM Ltd.
71 * Reverted change of ABI data structures for s390 and s390x:
72 On s390 and s390x the size of struct ucontext and jmp_buf was increased in
73 2.19. This change is reverted in 2.20. The introduced 2.19 symbol versions
74 of getcontext, setjmp, _setjmp, __sigsetjmp, longjmp, _longjmp, siglongjmp
75 are preserved pointing straight to the same implementation as the old ones.
76 Given that, new callers will simply provide a too-big buffer to these
77 functions. Any applications/libraries out there that embed jmp_buf or
78 ucontext_t in an ABI-relevant data structure that have already been rebuilt
79 against 2.19 headers will have to rebuilt again. This is necessary in any
80 case to revert the breakage in their ABI caused by the glibc change.
82 * Support for file description locks is added to systems running the
83 Linux kernel. The standard file locking interfaces are extended to
84 operate on file descriptions, not file descriptors, via the use of
85 F_OFD_GETLK, F_OFD_SETLK, and F_OFD_SETLKW. File description locks
86 are associated with an open file instead of a process.
88 * Optimized strchr implementation for AArch64. Contributed by ARM Ltd.
90 * The minimum Linux kernel version that this version of the GNU C Library
91 can be used with is 2.6.32.
93 * Running the testsuite no longer terminates as soon as a test fails.
94 Instead, a file tests.sum (xtests.sum from "make xcheck") is generated,
95 with PASS or FAIL lines for individual tests. A summary of the results is
96 printed, including a list of failing lists, and "make check" exits with
97 error status if there were any unexpected failures. "make check
98 stop-on-test-failure=y" may be used to keep the old behavior.
100 * The am33 port, which had not worked for several years, has been removed
103 * The _BSD_SOURCE and _SVID_SOURCE feature test macros are no longer
104 supported; they now act the same as _DEFAULT_SOURCE (but generate a
105 warning). Except for cases where _BSD_SOURCE enabled BSD interfaces that
106 conflicted with POSIX (support for which was removed in 2.19), the
107 interfaces those macros enabled remain available when compiling with
108 _GNU_SOURCE defined, with _DEFAULT_SOURCE defined, or without any feature
111 * Optimized strcmp implementation for ARMv7. Contributed by ARM Ltd.
113 * Added support for TX lock elision of pthread mutexes on s390 and s390x.
114 This may improve lock scaling of existing programs on TX capable systems.
115 The lock elision code is only built with --enable-lock-elision=yes and
116 then requires a GCC version supporting the TX builtins. With lock elision
117 default mutexes are elided via __builtin_tbegin, if the cpu supports
118 transactions. By default lock elision is not enabled and the elision code
121 * CVE-2014-4043 The posix_spawn_file_actions_addopen implementation did not
122 copy the path argument. This allowed programs to cause posix_spawn to
123 deference a dangling pointer, or use an unexpected pathname argument if
124 the string was modified after the posix_spawn_file_actions_addopen
127 * All supported architectures now use the main glibc sysdeps directory
128 instead of some being in a separate "ports" directory (which was
129 distributed separately before glibc 2.17).
131 * The NPTL implementation of POSIX pthreads is no longer an "add-on".
132 On configurations that support it (all Linux configurations), it's now
133 used regardless of the --enable-add-ons switch to configure. It is no
134 longer possible to build such configurations without pthreads support.
136 * Locale names, including those obtained from environment variables (LANG
137 and the LC_* variables), are more tightly checked for proper syntax.
138 setlocale will now fail (with EINVAL) for locale names that are overly
139 long, contain slashes without starting with a slash, or contain ".." path
140 components. (CVE-2014-0475) Previously, some valid locale names were
141 silently replaced with the "C" locale when running in AT_SECURE mode
142 (e.g., in a SUID program). This is no longer necessary because of the
145 * On x86-64, the dynamic linker's lazy-binding support is now compatible
146 with application code using Intel MPX instructions. (With all previous
147 versions, the MPX register state could be clobbered when making calls
148 into or out of a shared library.) Note that while the new dynamic
149 linker is compatible with all known x86 hardware whether or not it
150 supports Intel MPX, some x86 instruction-set emulators might fail to
151 handle the new instruction encodings. This is known to affect Valgrind
152 versions up through 3.9 (but will be fixed in the forthcoming 3.10
153 release), and might affect other tools that do instruction emulation.
155 * Support for loadable gconv transliteration modules has been removed.
156 The support for transliteration modules has been non-functional for
157 over a decade, and the removal is prompted by security defects. The
158 normal gconv conversion modules are still supported. Transliteration
159 with //TRANSLIT is still possible, and the //IGNORE specifier
160 continues to be supported. (CVE-2014-5119)
162 * Decoding a crafted input sequence in the character sets IBM933, IBM935,
163 IBM937, IBM939, IBM1364 could result in an out-of-bounds array read,
164 resulting a denial-of-service security vulnerability in applications which
165 use functions related to iconv. (CVE-2014-6040)
169 * The following bugs are resolved with this release:
171 156, 387, 431, 762, 832, 926, 2801, 4772, 6786, 6787, 6807, 6810, 6981,
172 7003, 9721, 9954, 10253, 10278, 11087, 11157, 11214, 12100, 12486, 12751,
173 12986, 13028, 13982, 13985, 14029, 14032, 14120, 14143, 14155, 14286,
174 14547, 14699, 14752, 14782, 14876, 14910, 15004, 15048, 15073, 15089,
175 15128, 15218, 15268, 15277, 15308, 15362, 15374, 15400, 15425, 15427,
176 15483, 15522, 15531, 15532, 15593, 15601, 15608, 15609, 15610, 15632,
177 15640, 15670, 15672, 15680, 15681, 15723, 15734, 15735, 15736, 15748,
178 15749, 15754, 15760, 15763, 15764, 15797, 15799, 15825, 15843, 15844,
179 15846, 15847, 15849, 15850, 15855, 15856, 15857, 15859, 15867, 15886,
180 15887, 15890, 15892, 15893, 15895, 15897, 15901, 15905, 15909, 15915,
181 15917, 15919, 15921, 15923, 15939, 15941, 15948, 15963, 15966, 15968,
182 15985, 15988, 15997, 16032, 16034, 16036, 16037, 16038, 16041, 16046,
183 16055, 16071, 16072, 16074, 16077, 16078, 16103, 16112, 16143, 16144,
184 16146, 16150, 16151, 16153, 16167, 16169, 16172, 16195, 16214, 16245,
185 16271, 16274, 16283, 16289, 16293, 16314, 16316, 16330, 16337, 16338,
186 16356, 16365, 16366, 16369, 16372, 16375, 16379, 16381, 16384, 16385,
187 16386, 16387, 16390, 16394, 16398, 16400, 16407, 16408, 16414, 16430,
188 16431, 16453, 16474, 16506, 16510, 16529
190 * Slovenian translations for glibc messages have been contributed by the
191 Translation Project's Slovenian team of translators.
193 * The public headers no longer use __unused nor __block. This change is to
194 support compiling programs that are derived from BSD sources and use
195 __unused internally, and to support compiling with Clang's -fblock
196 extension which uses __block.
198 * CVE-2012-4412 The strcoll implementation caches indices and rules for
199 large collation sequences to optimize multiple passes. This cache
200 computation may overflow for large collation sequences and may cause a
201 stack or buffer overflow. This is now fixed to use a slower algorithm
202 which does not use a cache if there is an integer overflow.
204 * CVE-2012-4424 The strcoll implementation uses malloc to cache indices and
205 rules for large collation sequences to optimize multiple passes and falls
206 back to alloca if malloc fails, resulting in a possible stack overflow.
207 The implementation now falls back to an uncached collation sequence lookup
210 * CVE-2013-4788 The pointer guard used for pointer mangling was not
211 initialized for static applications resulting in the security feature
212 being disabled. The pointer guard is now correctly initialized to a
213 random value for static applications. Existing static applications need
214 to be recompiled to take advantage of the fix (bug 15754).
216 * CVE-2013-4237 The readdir_r function could write more than NAME_MAX bytes
217 to the d_name member of struct dirent, or omit the terminating NUL
218 character. (Bugzilla #14699).
220 * CVE-2013-4332 The pvalloc, valloc, memalign, posix_memalign and
221 aligned_alloc functions could allocate too few bytes or corrupt the
222 heap when passed very large allocation size values (Bugzilla #15855,
225 * CVE-2013-4458 Stack overflow in getaddrinfo with large number of results
226 for AF_INET6 has been fixed (Bugzilla #16072).
228 * New locales: ak_GH, anp_IN, ar_SS, cmn_TW, hak_TW, lzh_TW, nan_TW, pap_AW,
229 pap_CW, quz_PE, the_NP.
231 * Substantially revised locales: gd_GB, ht_HT
233 * The LC_ADDRESS field was updated to support country_car for almost all
236 * ISO 1427 definitions were updated.
238 * ISO 3166 definitions were updated.
240 * The localedef utility now supports --big-endian and --little-endian
241 command-line options to generate locales for a different system from that
242 for which the C library was built.
244 * Binary locale files now only depend on the endianness of the system for
245 which they are generated and not on other properties of that system. As a
246 consequence, binary files generated with new localedef may be incompatible
247 with old versions of the GNU C Library, and binary files generated with
248 old localedef may be incompatible with this version of the GNU C Library,
249 in the following circumstances:
251 + Locale files may be incompatible on m68k systems.
253 + Locale archive files (but not separate files for individual locales) may
254 be incompatible on systems where plain "char" is signed.
256 * The configure option --disable-versioning has been removed. Builds with
257 --disable-versioning had not worked for several years.
259 * ISO 639 definitions were updated for Chiga (cgg) and Chinese (gan, hak, czh,
260 cjy, lzh, cmn, mnp, cdo, czo, cpx, wuu, hsn, yue).
262 * SystemTap probes for malloc have been introduced.
264 * SystemTap probes for slow multiple precision fallback paths of
265 transcendental functions have been introduced.
267 * Support for powerpc64le has been added.
269 * The soft-float powerpc port now supports e500 processors.
271 * Support for STT_GNU_IFUNC symbols added for ppc32/power4+ and ppc64.
273 * A new feature test macro _DEFAULT_SOURCE is available to enable the same
274 set of header declarations that are enabled by default, even when other
275 feature test macros or compiler options such as -std=c99 would otherwise
276 disable some of those declarations.
278 * The _BSD_SOURCE feature test macro no longer enables BSD interfaces that
279 conflict with POSIX. The libbsd-compat library (which was a dummy library
280 that did nothing) has also been removed.
282 * Preliminary documentation about Multi-Thread, Async-Signal and
283 Async-Cancel Safety has been added.
285 * Change of ABI data structures for s390 and s390x:
286 On s390 and s390x the size of struct ucontext and jmp_buf was increased to
287 allow for future hardware extensions. All library functions that accept or
288 return these structures were versioned in order to provide backwards
289 compatibility with existing code. However, not all cases can be handled
290 with interface versioning. If an application embeds either structure into
291 another structure and that structure is passed to another compilation unit
292 which expects the newer larger-sized object then any access to the new
293 fields will result in undefined behaviour. Similarly any access to fields
294 that were moved by the enlarging of the structures will cause undefined
295 behaviour. To fix the undefined behaviour all objects that are part of the
296 final in-memory image must agree on the size of structures, and this may
297 require recompilation.
301 * The following bugs are resolved with this release:
303 2546, 2560, 5159, 6809, 7006, 10060, 10062, 10283, 10357, 10686, 11120,
304 11561, 12310, 12387, 12492, 12515, 12723, 13550, 13889, 13951, 13988,
305 14142, 14176, 14200, 14256, 14280, 14293, 14317, 14327, 14478, 14496,
306 14582, 14686, 14812, 14888, 14894, 14907, 14908, 14909, 14920, 14952,
307 14964, 14981, 14982, 14985, 14991, 14994, 14996, 15000, 15003, 15006,
308 15007, 15014, 15020, 15022, 15023, 15036, 15054, 15055, 15062, 15078,
309 15084, 15085, 15086, 15100, 15160, 15214, 15221, 15232, 15234, 15283,
310 15285, 15287, 15304, 15305, 15307, 15309, 15327, 15330, 15335, 15336,
311 15337, 15339, 15342, 15346, 15359, 15361, 15366, 15380, 15381, 15394,
312 15395, 15405, 15406, 15409, 15416, 15418, 15419, 15423, 15424, 15426,
313 15429, 15431, 15432, 15441, 15442, 15448, 15465, 15480, 15485, 15488,
314 15490, 15492, 15493, 15497, 15506, 15529, 15536, 15553, 15577, 15583,
315 15618, 15627, 15631, 15654, 15655, 15666, 15667, 15674, 15711, 15755,
318 * CVE-2013-2207 Incorrectly granting access to another user's pseudo-terminal
319 has been fixed by disabling the use of pt_chown (Bugzilla #15755).
320 Distributions can re-enable building and using pt_chown via the new configure
321 option `--enable-pt_chown'. Enabling the use of pt_chown carries with it
322 considerable security risks and should only be used if the distribution
323 understands and accepts the risks.
325 * CVE-2013-0242 Buffer overrun in regexp matcher has been fixed (Bugzilla
328 * CVE-2013-1914 Stack overflow in getaddrinfo with many results has been
329 fixed (Bugzilla #15330).
331 * Add support for calling C++11 thread_local object destructors on thread
332 and program exit. This needs compiler support for offloading C++11
333 destructor calls to glibc.
335 * Improved worst case performance of libm functions with double inputs and
338 * Support for priority inherited mutexes in pthread condition variables on
339 non-x86 architectures.
341 * Port to Xilinx MicroBlaze contributed by David Holsgrove.
343 * Optimized string functions for AArch64. Implemented by Marcus Shawcroft.
345 * Optimized string functions for ARM. Implemented by Will Newton and
348 * Optimized libm functions for SPARC. Implemented by David S. Miller.
350 * Support for building more of ARM glibc as Thumb-2 code. Implemented by
353 * Support for building most of MIPS glibc as MIPS16 code. Implemented by
354 Chung-Lin Tang, Maciej W. Rozycki and Maxim Kuvyrkov.
356 * Added a benchmark framework to track performance of functions in glibc.
358 * New <math.h> macro named issignaling to check for a signaling NaN (sNaN).
359 It is based on draft TS 18661 and currently enabled as a GNU extension.
361 * On Linux, the clock function now uses the clock_gettime system call
362 for improved precision, rather than old times system call.
364 * Added support for version-3 tz format files. This is needed when using
365 the tz database release 2013e or later, and affects a few unusual cases --
366 currently only TZ='America/Godthab' for time stamps after 2037.
368 * Added new API functions pthread_getattr_default_np and
369 pthread_setattr_default_np to get and set the default pthread
370 attributes of a process.
372 * Added support for TSX lock elision for pthread mutexes on i386 and x86-64.
373 This may improve lock scaling of existing programs on TSX capable systems.
374 When the --enable-lock-elision=yes parameter is specified at configure
375 time lock elision will be enabled by default for all PTHREAD_MUTEX_DEFAULT
378 * Support added for AT_HWCAP2 (to coincide with Linux kernel 3.10
379 availability). Implemented by Ryan S. Arnold.
381 * Support added for POWER8 platform. Implemented by Ryan S. Arnold.
385 * The following bugs are resolved with this release:
387 1349, 3439, 3479, 3665, 5044, 5246, 5298, 5400, 6530, 6677, 6778, 6808,
388 9685, 9914, 10014, 10038, 10114, 10191, 10631, 10873, 11438, 11607, 11638,
389 11741, 12140, 13013, 13412, 13542, 13601, 13603, 13604, 13629, 13679,
390 13696, 13698, 13717, 13741, 13759, 13761, 13763, 13881, 13939, 13950,
391 13952, 13966, 14042, 14047, 14090, 14150, 14151, 14152, 14154, 14157,
392 14166, 14173, 14195, 14197, 14237, 14246, 14251, 14252, 14283, 14298,
393 14303, 14307, 14328, 14331, 14336, 14337, 14347, 14349, 14368, 14376,
394 14417, 14447, 14459, 14476, 14477, 14501, 14505, 14510, 14516, 14518,
395 14519, 14530, 14532, 14538, 14543, 14544, 14545, 14557, 14562, 14568,
396 14576, 14579, 14583, 14587, 14595, 14602, 14610, 14621, 14638, 14645,
397 14648, 14652, 14660, 14661, 14669, 14672, 14683, 14694, 14716, 14719,
398 14743, 14767, 14783, 14784, 14785, 14793, 14796, 14797, 14801, 14803,
399 14805, 14807, 14811, 14815, 14821, 14822, 14824, 14828, 14831, 14833,
400 14835, 14838, 14856, 14863, 14865, 14866, 14868, 14869, 14871, 14872,
401 14879, 14889, 14893, 14898, 14914.
403 * Optimization of memcpy for MIPS.
405 * CVE-2011-4609 svc_run() produces high cpu usage when accept fails with
406 EMFILE has been fixed (Bugzilla #14889).
408 * The add-on ports collection is now distributed in the "ports" subdirectory
409 of the main GNU C Library distribution, rather than separately.
411 * Port to ARM AArch64 contributed by Linaro.
413 * Support for STT_GNU_IFUNC symbols added for s390 and s390x.
414 Optimized versions of memcpy, memset, and memcmp added for System z10 and
416 Implemented by Andreas Krebbel.
418 * The new function secure_getenv allows secure access to the environment,
419 returning NULL if running in a SUID/SGID process. This function replaces
420 the internal function __secure_getenv.
422 * SystemTap static probes have been added into the dynamic linker.
423 Implemented by Gary Benson.
425 * Optimizations of string functions strstr, strcasestr and memmem.
426 Implemented by Maxim Kuvyrkov.
428 * The minimum Linux kernel version that this version of the GNU C Library
429 can be used with is 2.6.16.
431 * Optimizations of string functions memchr, wcschr, wcscpy, and wcsrchr for
432 powerpc POWER7. Implemented by Will Schmidt.
434 * New configure option --disable-nscd builds the C library such that it
435 never attempts to contact the Name Service Caching Daemon (nscd).
436 New configure option --disable-build-nscd avoids building nscd itself;
437 this is the default if --disable-nscd is used.
439 * Improved support for cross-compilation, including cross-testing and
440 bootstrap builds without a previously built glibc.
442 * Several testsuite tests are now able to test multiple IFUNC variants of an
443 interface, rather than just testing the one that would be chooen by
446 * New configure options --with-bugurl and --with-pkgversion, for
447 distributors to use to embed their bug-reporting and package version
448 information in --help and --version output.
450 * The ttyname and ttyname_r functions on Linux now fall back to searching for
451 the tty file descriptor in /dev/pts or /dev if /proc is not available. This
452 allows creation of chroots without the procfs mounted on /proc.
454 * The `crypt' function now fails if passed salt bytes that violate the
455 specification for those values. On Linux, the `crypt' function will
456 consult /proc/sys/crypto/fips_enabled to determine if "FIPS mode" is
457 enabled, and fail on encrypted strings using the MD5 or DES algorithm
458 when the mode is enabled.
460 * The `clock_*' suite of functions (declared in <time.h>) is now available
461 directly in the main C library. Previously it was necessary to link with
462 -lrt to use these functions. This change has the effect that a
463 single-threaded program that uses a function such as `clock_gettime' (and
464 is not linked with -lrt) will no longer implicitly load the pthreads
465 library at runtime and so will not suffer the overheads associated with
466 multi-thread support in other code such as the C++ runtime library.
468 * New locales: ayc_PE, doi_IN, ia_FR, mni_IN, nhn_MX, niu_NU, niu_NZ,
473 * The following bugs are resolved with this release:
475 174, 208, 350, 369, 411, 706, 766, 887, 2074, 2541, 2547, 2548, 2550,
476 2551, 2552, 2553, 2554, 2562, 2563, 2565, 2566, 2570, 2576, 2636, 2678,
477 3335, 3440, 3748, 3768, 3866, 3868, 3906, 3976, 3992, 4026, 4108, 4596,
478 4822, 5077, 5461, 5805, 5993, 6471, 6486, 6578, 6649, 6730, 6770, 6794,
479 6884, 6890, 6894, 6895, 6907, 6911, 6959, 7064, 9739, 9902, 10110, 10135,
480 10140, 10153, 10210, 10254, 10346, 10375, 10545, 10716, 10846, 11174,
481 11261, 11322, 11365, 11451, 11494, 11521, 11677, 11837, 11959, 12047,
482 12097, 12193, 12194, 12297, 12298, 12301, 12340, 12354, 12416, 12495,
483 13058, 13223, 13361, 13525, 13526, 13527, 13528, 13529, 13530, 13531,
484 13532, 13533, 13547, 13551, 13552, 13553, 13555, 13556, 13559, 13563,
485 13566, 13576, 13579, 13583, 13592, 13594, 13613, 13618, 13637, 13656,
486 13658, 13673, 13691, 13695, 13704, 13705, 13706, 13718, 13726, 13738,
487 13739, 13743, 13750, 13758, 13760, 13761, 13775, 13786, 13787, 13792,
488 13806, 13824, 13840, 13841, 13844, 13846, 13848, 13851, 13852, 13854,
489 13871, 13872, 13873, 13879, 13882, 13883, 13884, 13885, 13886, 13892,
490 13895, 13908, 13910, 13911, 13912, 13913, 13914, 13915, 13916, 13917,
491 13918, 13919, 13920, 13921, 13922, 13923, 13924, 13926, 13927, 13928,
492 13938, 13941, 13942, 13954, 13955, 13956, 13963, 13967, 13968, 13970,
493 13973, 13979, 13983, 13986, 13996, 14012, 14027, 14033, 14034, 14036,
494 14040, 14043, 14044, 14048, 14049, 14050, 14053, 14055, 14059, 14064,
495 14075, 14080, 14083, 14103, 14104, 14109, 14112, 14117, 14122, 14123,
496 14134, 14153, 14183, 14188, 14199, 14210, 14218, 14229, 14241, 14273,
499 * Support for the x32 ABI on x86-64 added. The x32 target is selected by
500 configuring glibc with:
501 BUILD_CC='gcc' CC='gcc -mx32' CXX='g++ -mx32'
502 Visit <http://sites.google.com/site/x32abi/> for more x32 ABI info.
503 Implemented by H.J. Lu.
507 + define static_assert
509 + do not declare gets
511 + declare at_quick_exit and quick_exit also for ISO C11
513 + aligned_alloc. NB: The code is deliberately allows the size parameter
514 to not be a multiple of the alignment. This is a moronic requirement
515 in the standard but it is only a requirement on the caller, not the
520 + uchar.h support added
522 + CMPLX, CMPLXF, CMPLXL added
524 Implemented by Ulrich Drepper.
526 * Support for the IA-64 has been moved to ports.
528 * Remove support for anything but ELF binary format
530 * Checking versions of poll, ppoll added.
531 Implemented by Ulrich Drepper.
533 * More generic and 64-bit performance optimizations to math functions.
534 Implemented by Ulrich Drepper.
536 * New configure option --enable-obsolete-rpc makes the deprecated RPC
537 headers and functions available at compile time as they were before
538 version 2.14. This option will be removed at some time in the future
539 after the TI-RPC library becomes fully sufficient for the needs of
540 existing applications.
542 * Compatibility code for Linux kernel versions before 2.4 has been removed.
543 Note that glibc is not expected to work with any Linux kernel version
546 * New header <sys/auxv.h> and function getauxval allowing easy access to
547 the AT_* key-value pairs passed from the Linux kernel. The header also
548 defines the HWCAP_* bits associated with the AT_HWCAP key.
550 * New locales: mag_IN
552 * New configure option --enable-systemtap builds SystemTap static probes
553 into libc for setjmp and longjmp and into libpthread for various operations.
554 So far the setjmp/longjmp probes and some of the libpthread probes are
555 provided only for i*86 and x86_64.
556 Implemented by Roland McGrath and Rayson Ho.
558 * Optimized expf for x86-32 and x86-64. Implemented by Liubov Dmitrieva.
560 * More optimized functions for PowerPC. Implemented by Adhemerval Zanella
563 * More optimized functions for SPARC. Implemented by David S. Miller.
565 * Improved support for cross-compilation, especially bootstrap builds
566 without a previously built glibc.
568 * Ports for the TILE-Gx and TILEPro families of processors. Contributed by
569 Chris Metcalf from Tilera.
571 * Support for the old ARM ABI has been removed from ports. Only the EABI is
572 now supported for ARM processors.
574 * The hard-float variant of the ARM EABI now uses /lib/ld-linux-armhf.so.3
575 as the name of the dynamic linker, to distinguish it from the
576 /lib/ld-linux.so.3 dynamic linker used for the base EABI.
578 * Support for CRIS has been removed from ports.
580 * A new class of installed header has been documented for low-level
581 platform-specific functionality. PowerPC added the first instance with a
582 function to provide time base register access. Contributed by Tulio
583 Magno Quites Machado Filho.
585 * ix86 configurations now install header files that are consistent with
586 what x86-64 configurations install. These same header files can be used
587 for -m32, -m64, or -mx32 builds.
588 Contributed by H.J. Lu.
590 * Math library bug fixes. A thorough audit of all open math library bugs was
591 conducted by Joseph Myers. Significant progress was made on many math
592 library bugs resulting in more accurate exceptions and function results.
593 Many thanks to all those that contributed including Andreas Jaeger for his
594 patch review and work on the x87 trigonometric instruction issues.
596 * Timezone data is no longer installed. Timezone-related binaries and scripts
597 will continue to be installed. Users should obtain their timezone data from
598 their distribution provider or from the tzdata package at
599 <ftp://munnari.oz.au/pub/>.
603 * The following bugs are resolved with this release:
605 6779, 6783, 9696, 10103, 10709, 11589, 11929, 12403, 12786, 12840, 12847,
606 12868, 12852, 12874, 12885, 12892, 12906, 12907, 12922, 12935, 12962,
607 13007, 13021, 13061, 13062, 13067, 13068, 13085, 13088, 13090, 13092,
608 13096, 13114, 13118, 13123, 13134, 13138, 13147, 13150, 13166, 13179,
609 13185, 13189, 13192, 13268, 13276, 13282, 13291, 13305, 13328, 13335,
610 13337, 13344, 13358, 13367, 13413, 13416, 13423, 13439, 13446, 13472,
611 13484, 13506, 13515, 13523, 13524, 13538, 13540
613 * New program pldd to list loaded object of a process
614 Implemented by Ulrich Drepper.
616 * Add nss_db support back to glibc. No more dependency on Berkeley db
617 and support for initgroups lookups.
618 Implemented by Ulrich Drepper.
620 * Optimized strcpy, strncpy, stpcpy, stpncpy for SSE2 and SSSE3 on x86-32.
621 Contributed by HJ Lu.
623 * Improved strcpy, strncpy, stpcpy, stpncpy for SSE2 and SSSE3 on x86-64.
624 Contributed by HJ Lu.
626 * Optimized strcat, strncat on x86-64 and optimized wcscmp, wcslen, strnlen
627 on x86-32 and x86-64.
628 Contributed by Liubov Dmitrieva.
630 * Optimized strchr and strrchr for SSE on x86-32.
631 Contributed by Liubov Dmitrieva.
633 * Optimized memchr, memrchr, rawmemchr, memcmp, wmemcmp, wcschr, wcscpy
634 for x86-64 and x86-32.
635 Contributed by Liubov Dmitrieva.
637 * New interfaces: scandirat, scandirat64
638 Implemented by Ulrich Drepper.
640 * Checking versions of FD_SET, FD_CLR, and FD_ISSET added.
641 Implemented by Ulrich Drepper.
643 * nscd now also caches the netgroup database.
644 Implemented by Ulrich Drepper.
646 * Integrate libm with gcc's -ffinite-math-only option.
647 Implemented by Ulrich Drepper.
649 * Lots of generic, 64-bit, and x86-64-specific performance optimizations
650 to math functions. Implemented by Ulrich Drepper.
652 * Optimized strcasecmp and strncasecmp for AVX on x86-64.
653 Implemented by Ulrich Drepper.
655 * New Linux interfaces: process_vm_readv, process_vm_writev
657 * Optimized strcasecmp and strncasecmp for SSSE3 and SSE4.2 on x86-32.
658 Implemented by Ulrich Drepper.
660 * Optimized nearbyint and strcasecmp for PPC.
661 Implemented by Adhemerval Zanella.
663 * New locales: bho_IN, unm_US, es_CU, ta_LK
667 * The following bugs are resolved with this release:
669 386, 6420, 7101, 9730, 9732, 9809, 10138, 10149, 10157, 11099, 11257,
670 11258, 11487, 11532, 11558, 11578, 11634, 11653, 11668, 11697, 11724,
671 11781, 11799, 11820, 11837, 11857, 11869, 11892, 11895, 11901, 11945,
672 11947, 11952, 11987, 12052, 12083, 12158, 12178, 12200, 12346, 12350,
673 12393, 12420, 12432, 12445, 12449, 12453, 12454, 12460, 12469, 12489,
674 12509, 12510, 12511, 12518, 12527, 12541, 12545, 12551, 12582, 12583,
675 12587, 12597, 12601, 12611, 12625, 12626, 12631, 12650, 12653, 12655,
676 12660, 12671, 12681, 12684, 12685, 12711, 12713, 12714, 12717, 12723,
677 12724, 12734, 12738, 12746, 12766, 12775, 12777, 12782, 12788, 12792,
678 12795, 12811, 12813, 12814, 12841
680 * The RPC implementation in libc is obsoleted. Old programs keep working
681 but new programs cannot be linked with the routines in libc anymore.
682 Programs in need of RPC functionality must be linked against TI-RPC.
683 The TI-RPC implementation is IPv6 enabled and there are other benefits.
685 Visible changes of this change include (obviously) the inability to link
686 programs using RPC functions without referencing the TI-RPC library and the
687 removal of the RPC headers from the glibc headers.
688 Implemented by Ulrich Drepper.
690 * New Linux interfaces: clock_adjtime, name_to_handle_at, open_by_handle_at,
691 syncfs, setns, sendmmsg
693 * New locales: os_RU, bem_ZA, en_ZA, ff_SN, sw_KE, sw_TZ, lb_LU, wae_CH,
694 yue_HK, lij_IT, mhr_RU
696 * New encodings: CP770, CP771, CP772, CP773, CP774
698 * New program sotruss to trace calls through PLTs
699 Implemented by Ulrich Drepper.
701 * The malloc hook implementation is marked deprecated and will be removed
702 from the default implementation in the next version. The design never
703 worked ever since the introduction of threads. Even programs which do
704 not create threads themselves can use multiple threads created internally.
708 * The following bugs are resolved with this release:
710 3268, 6812, 7066, 10085, 10484, 10563, 10851, 11149, 11155, 11577, 11611,
711 11640, 11655, 11701, 11840, 11856, 11883, 11903, 11904, 11968, 11979,
712 12005, 12037, 12067, 12077, 12078, 12092, 12093, 12107, 12108, 12113,
713 12140, 12159, 12167, 12191, 12194, 12201, 12204, 12205, 12207, 12348,
716 * New Linux interfaces: prlimit, prlimit64, fanotify_init, fanotify_mark
718 * POWER7 optimizations: memset, memcmp, strncmp
720 * New optimized string functions for x86-64: strnlen (SSE2),
721 strcasecmp (SSE2, SSSE3, SSE4.2), strncasecmp (SSE2, SSSE3, SSE4.2)
722 Implemented by Ulrich Drepper.
726 * The following bugs are resolved with this release:
728 3662, 4457, 5553, 10162, 10401, 10414, 10554, 10824, 10864, 10915,
729 10918, 10936, 10939, 10958, 10968, 10969, 10972, 10992, 11000, 11001,
730 11007, 11010, 11027, 11039, 11040, 11041, 11043, 11046, 11056, 11070,
731 11093, 11115, 11125, 11126, 11127, 11134, 11141, 11149, 11183, 11184,
732 11185, 11186, 11187, 11188, 11189, 11190, 11191, 11192, 11193, 11194,
733 11200, 11230, 11235, 11242, 11254, 11258, 11271, 11272, 11276, 11279,
734 11287, 11292, 11319, 11332, 11333, 11387, 11389, 11390, 11394, 11397,
735 11410, 11438, 11449, 11470, 11471, 11520, 11537, 11538, 11571
737 * New interfaces: pthread_getname_np, pthread_setname_np
739 * New Linux interface: recvmmsg
741 * STT_GNU_IFUNC implemented for Sparc by David Miller.
743 * The dynamic linker now recognizes supported ABI versions from the
744 EI_ABIVERSION field in the ELF header.
745 Implemented by Ulrich Drepper.
747 * New NIS mode selector ADJUNCT_AS_SHADOW. The passwd.adjunct.byname table
748 will not be used to fill in password fields in the passwd.byname replies.
749 Instead it is used to synthesize the shadow.byname table, should it be
750 missing. This is a useful mode in some installations involving Solaris.
751 Implemented by Ulrich Drepper.
753 * New locales: kok_IN, sq_MK, cv_RU
757 * The following bugs are resolved with this release:
759 3270, 7094, 9924, 9986, 10011, 10085, 10107, 10159, 10162, 10166, 10183,
760 10195, 10196, 10200, 10203, 10207, 10211, 10213, 10217, 10221, 10229,
761 10262, 10286, 10312, 10315, 10319, 10349, 10360, 10391, 10402, 10416,
762 10418, 10422, 10425, 10446, 10448, 10452, 10540, 10553, 10560, 10564,
763 10609, 10643, 10692, 10713, 10717, 10730, 10731, 10742, 10780, 10784,
764 10789, 10817, 10823, 10840, 10847
766 * New interfaces: execvpe, pthread_sigqueue, mkstemps, mkstemps64, mkostemps,
768 Implemented by Ulrich Drepper.
770 * Checking version of longjmp added that fails if an uninitialized stack
771 frame would be created. Implemented by Ulrich Drepper.
773 * STT_GNU_IFUNC is now supported in static executables.
774 Implemented by H.J. Lu.
776 * STT_GNU_IFUNC implemented for PPC by Alan Modra.
778 * New optimized string functions for x86-64: strstr, strcasestr, memcmp,
779 strcspn, strpbrk, strspn, strcpy, stpcpy, strncpy, strcmp (SSE2, SSE4.2),
780 strncmp (SSE2, SSE4.2), strchr (SSE4.2), strrchr (SSE4.2).
781 Contributed by H.J. Lu.
783 strlen, rawmemchr, strcmp (SSSE3), strncmp (SSSE3).
784 Implemented by Ulrich Drepper.
786 * New optimized string functions for x86: strlen, strcspn, strspn, strpbrk,
788 Contributed by H.J. Lu.
790 * Support for fma instruction in AVX on x86-64.
791 Implemented by H.J. Lu and Ulrich Drepper.
793 * AVX support in x86-64 auditing support in ld.so.
794 Implemented by H.J. Lu.
796 * STB_GNU_UNIQUE support added.
797 Implemented by Ulrich Drepper.
799 * Implement second fallback mode for optimized DNS lookup for even more
800 broken environments. If two requests from the same port are not
801 handled correctly close the socket and open a new one before sending
802 the second request. The 'single-request-reopen' option in /etc/resolv.conf
803 can be used to select this mode right away, instead of rediscovering the
804 necessity is every process again.
805 Implemented by Ulrich Drepper.
807 * New resolver flag RES_USE_DNSSEC to enable use of verified lookup.
808 Implemented by Adam Tkac.
810 * Optimized iconv conversions for S390x.
811 Implemented by Andreas Krebbel.
813 * Using condvars with PI mutexes is now more efficient due to kernel
814 support for requeueing to PI futexes. NPTL support added for x86-64.
815 Implemented by Ulrich Drepper.
817 * New locales: ps_AF, my_MM
821 * The following bugs are resolved with this release:
823 697, 5381, 5807, 6411, 6545, 7040, 7058, 7067, 7080, 7083, 7095, 7098,
824 9677, 9694, 9697, 9701, 9704, 9705, 9706, 9720, 9726, 9730, 9733, 9736,
825 9741, 9750, 9753, 9759, 9781, 9791, 9793, 9823, 9833, 9844, 9880, 9881,
826 9891, 9893, 9895, 9913, 9916, 9920, 9948, 9955, 9957, 9963, 9985, 10052,
827 10069, 10086, 10087, 10090, 10092, 10093, 10100, 10118, 10128
829 * New interfaces: preadv, preadv64, pwritev, pwritev64, malloc_info
830 Implemented by Ulrich Drepper.
832 * New Linux interfaces: accept4, fallocate, fallocate64.
833 Implemented by Ulrich Drepper.
835 * Correct declarations of string function when used in C++ code. This
836 could lead to compile errors for invalid C++ code.
838 * XPG7/POSIX 2008 compilation environment. Many GNU-specific functions are
841 * New POSIX 2008 interface: psiginfo
842 Implemented by Ulrich Drepper.
844 * New ISO C++1x interfaces: quick_exit, at_quick_exit
845 Implemented by Ulrich Drepper.
847 * Support for selecting between multiple function definitions at runtime
848 using STT_GNU_IFUNC symbols. Implemented by Ulrich Drepper.
850 * The libcrypt library can now use the hash function implementations in
851 NSS. Implemented by Ulrich Drepper.
853 * The malloc implementation can be compiled to be less memory efficient
854 but higher performing in multi-threaded programs.
855 Implemented by Ulrich Drepper.
857 * New locales: nan_TW@latin, ks_IN
859 * Faster strlen, strchr, strchrnul, strrchr, memchr, and rawmemchr for x86-64.
860 Implemented by Ulrich Drepper.
862 * Extended printf hook support. It is possible to use user-defined types
863 and extend existing format specifiers.
864 Implemented by Ulrich Drepper.
866 * Handling for group shadow files has been added.
867 Implemented by Ulrich Drepper.
869 * DNS IPv4-IPv6 parallel lookup now deals better with broken DNS
870 servers (the case, e.g., for some people using the built-in DNS
871 server in ADSL modems/routers). There is a once-per-process timeout
872 in case of a broken server. To avoid it, users can run nscd or put
873 'options single-request' in /etc/resolv.conf.
874 Implemented by Ulrich Drepper.
878 * The following bugs are resolved with this release:
880 3406, 5209, 5210, 5381, 5794, 5814, 5911, 6428, 6438, 6442, 6447, 6461,
881 6472, 6505, 6544, 6589, 6612, 6634, 6653, 6654, 6657, 6698, 6712, 6713,
882 6719, 6723, 6724, 6740, 6763, 6771, 6790, 6791, 6817, 6824, 6839, 6843,
883 6845, 6856, 6857, 6860, 6867, 6875, 6919, 6920, 6942, 6947, 6955, 6966,
884 6968, 6974, 6980, 6995, 7008, 7009, 7029
886 * Unified lookup for getaddrinfo: IPv4 and IPv6 addresses are now looked
887 up at the same time. Implemented by Ulrich Drepper.
889 * TLS descriptors for LD and GD on x86 and x86-64.
890 Implemented by Alexandre Oliva.
892 * getaddrinfo now handles DCCP and UDPlite.
893 Implemented by Ulrich Drepper.
895 * New fixed-size conversion macros: htobe16, htole16, be16toh, le16toh,
896 htobe32, htole32, be32toh, le32toh, htobe64, htole64, be64toh, le64toh.
897 Implemented by Ulrich Drepper.
899 * New implementation of memmem, strstr, and strcasestr which is O(n).
900 Implemented by Eric Blake.
902 * New Linux interfaces: inotify_init1, dup3, epoll_create1, pipe2
904 * Implement "e" option for popen to open file descriptor with the
905 close-on-exec flag set. Implemented by Ulrich Drepper.
907 * Implement "b" mode for fmemopen. In this mode writes writes don't
908 implicitly add a NUL byte and seeks from the end of the buffer really
909 use the buffer end, not the string length as the basis.
910 Implemented by Ulrich Drepper.
912 * Many functions, exported and internal, now atomically set the close-on-exec
913 flag when run on a sufficiently new kernel. Implemented by Ulrich Drepper.
915 * Sorting rules for some Indian languages (Kannada, Gurumukhi, Telugu,
917 Implemented by Pravin Satpute.
919 * New locales: sd_IN, sd_IN@devanagari, ks_IN@devanagari, ht_HT, en_AG, nl_AW.
923 * The following bugs are resolved with this release:
925 2549, 3112, 4314, 4407, 4997, 5012, 5040, 5112, 5204, 5208, 5209, 5220,
926 5222, 5224, 5225, 5237, 5238, 5240, 5245, 5277, 5346, 5375, 5378, 5382,
927 5424, 5427, 5428, 5435, 5436, 5439, 5441, 5442, 5443, 5451, 5452, 5454,
928 5455, 5463, 5464, 5465, 5475, 5477, 5478, 5520, 5541, 5545, 5553, 5600,
929 5602, 5607, 5614, 5627, 5628, 5736, 5737, 5741, 5753, 5760, 5762, 5768,
930 5774, 5777, 5778, 5779, 5786, 5790, 5818, 5854, 5857, 5903, 5939, 5979,
931 5983, 5995, 5998, 6004, 6007, 6020, 6021, 6024, 6040, 6042
933 * New locales: bo_CN, bo_IN, shs_CA.
935 * New encoding: HP-ROMAN9, HP-GREEK8, HP-THAI8, HP-TURKISH8.
937 * Sorting rules for some Indian languages (Devanagari and Gujarati).
938 Implemented by Pravin Satpute.
940 * IPV6 addresses in /etc/resolv.conf can now have a scope ID
942 * nscd caches now all timeouts for DNS entries
943 Implemented by Ulrich Drepper.
945 * nscd is more efficient and wakes up less often.
946 Implemented by Ulrich Drepper.
948 * More checking functions: asprintf, dprintf, obstack_printf, vasprintf,
949 vdprintf, and obstack_vprintf.
950 Implemented by Jakub Jelinek.
952 * Faster memset for x86-64.
953 Implemented by Harsha Jagasia and H.J. Lu.
955 * Faster memcpy on x86.
956 Implemented by Ulrich Drepper.
958 * ARG_MAX is not anymore constant on Linux. Use sysconf(_SC_ARG_MAX).
959 Implemented by Ulrich Drepper.
961 * Faster sqrt and sqrtf implemention for some PPC variants.
962 Implemented by Steven Munroe.
966 * The following bugs are resolved with this release:
968 4125, 4126, 4178, 4359, 4407, 4512, 4514, 4525, 4554, 4556, 4557, 4566,
969 4582, 4586, 4588, 4599, 4610, 4647, 4702, 4705, 4726, 4745, 4772, 4773,
970 4775, 4776, 4792, 4813, 4814, 4816, 4833, 4858, 4860, 4896, 4905, 4925,
971 4936, 4937, 4938, 4941, 4946, 4963, 4972, 5010, 5028, 5043, 5058, 5063,
972 5071, 5103, 5104, 5112, 5113, 5184, 5186
974 * More checking functions: fread, fread_unlocked, open*, mq_open.
975 Implemented by Jakub Jelinek and Ulrich Drepper.
977 * Extend fortification to C++. Implemented by Jakub Jelinek.
979 * Implement 'm' modifier for scanf. Add stricter C99/SUS compliance
980 by not recognizing 'a' as a modifier when those specs are requested.
981 Implemented by Jakub Jelinek.
983 * PPC optimizations to math and string functions.
984 Implemented by Steven Munroe.
986 * New interfaces: mkostemp, mkostemp64. Like mkstemp* but allow additional
987 options to be passed. Implemented by Ulrich Drepper.
989 * More CPU set manipulation functions. Implemented by Ulrich Drepper.
991 * New Linux interfaces: signalfd, eventfd, eventfd_read, and eventfd_write.
992 Implemented by Ulrich Drepper.
994 * Handle private futexes in the NPTL implementation.
995 Implemented by Jakub Jelinek and Ulrich Drepper.
997 * Add support for O_CLOEXEC. Implement in Hurd. Use throughout libc.
998 Implemented by Roland McGrath and Ulrich Drepper.
1000 * Linux/x86-64 vDSO support. Implemented by Ulrich Drepper.
1002 * SHA-256 and SHA-512 based password encryption.
1003 Implemented by Ulrich Drepper.
1005 * New locales: ber_DZ, ber_MA, en_NG, fil_PH, fur_IT, fy_DE, ha_NG, ig_NG,
1006 ik_CA, iu_CA, li_BE, li_NL, nds_DE, nds_NL, pap_AN, sc_IT, tk_TM, ug_CN,
1009 + New iconv modules: MAC-CENTRALEUROPE, ISO-8859-9E, KOI8-RU.
1010 Implemented by Ulrich Drepper.
1014 * The following bugs are resolved with this release:
1016 3156, 3213, 3285, 3291, 3306, 3313, 3320, 3322, 3325, 3326, 3334, 3348,
1017 3352, 3363, 3369, 3426, 3427, 3429, 3451, 3458, 3465, 3480, 3483, 3493,
1018 3514, 3515, 3559, 3632, 3664, 3673, 3674, 3745, 3747, 3818, 3840, 3842,
1019 3851, 3855, 3884, 3885, 3902, 3905, 3919, 3944, 3954, 3955, 3957, 3991,
1020 3995, 3996, 4024, 4040, 4069, 4070, 4074, 4076, 4096, 4101, 4102, 4114,
1021 4130, 4131, 4181, 4276, 4306, 4342, 4344, 4349, 4364, 4368, 4381, 4392,
1022 4403, 4405, 4406, 4411, 4438, 4439, 4455, 4456, 4465, 4512, 4514, 4586,
1025 * New Linux interfaces: epoll_pwait, sched_getcpu.
1027 * New generic interfaces: strerror_l.
1029 * nscd can now cache the services database. Implemented by Ulrich Drepper.
1033 * The following bugs are resolved with this release:
1035 39, 68, 192, 352, 388, 531, 935, 1006, 1201, 1203, 1386, 1782, 1783, 1784,
1036 1785, 1786, 1787, 1951, 1974, 1996, 2072, 2098, 2125, 2134, 2158, 2182,
1037 2349, 2376, 2386, 2389, 2415, 2418, 2420, 2423, 2450, 2451, 2466, 2472,
1038 2473, 2477, 2498, 2499, 2501, 2502, 2505, 2507, 2508, 2509, 2517, 2526,
1039 2569, 2571, 2592, 2611, 2625, 2632, 2644, 2662, 2680, 2683, 2684, 2693,
1040 2695, 2703, 2734, 2751, 2764, 2766, 2775, 2792, 2821, 2823, 2832, 2841,
1041 2843, 2883, 2892, 2908, 2914, 2926, 2961, 2978, 2980, 2987, 2997, 2998,
1042 3013, 3018, 3034, 3040, 3044, 3123, 3124, 3137, 3138, 3143, 3155, 3189,
1043 3225, 3251, 3252, 3253, 3273
1045 * For Linux, the sorting of addresses returned by getaddrinfo now also
1046 handles rules 3, 4, and 7 from RFC 3484. I.e., all rules are handled.
1047 Implemented by Ulrich Drepper.
1049 * Allow system admin to configure getaddrinfo with the /etc/gai.conf file.
1050 Implemented by Ulrich Drepper.
1052 * New Linux interfaces: splice, tee, sync_file_range, vmsplice.
1054 * New iconv module for MIK. Contributed by Alexander Shopov.
1056 * For sites with broken group and/or passwd database, the auto-propagate
1057 option of nscd can prevent creating ID lookup entries from the results
1058 of a name lookup and vice versa. This usually is no problem but some
1059 site might have problems with the default behavior.
1060 Implemented by Ulrich Drepper.
1062 * Iterating over entire database in NIS can be slow. With the
1063 SETENT_BATCH_READ option in /etc/default/nss a system admin can decide
1064 to trade time for memory. The entire database will be read at once.
1065 Implemented by Ulrich Drepper.
1067 * The interfaces introduced in RFC 3542 have been implemented by
1070 * Support for the new ELF hash table format was added by Ulrich Drepper.
1072 * Support for priority inheritance mutexes added by Jakub Jelinek and
1075 * Support for priority protected mutexes added by Jakub Jelinek.
1077 * New locales: nr_ZA, pa_PK, ca_AD, ca_FR, ca_IT, el_CY, tr_CY, as_IN,
1078 or_IN, csb_PL, fy_NL, sr_ME.
1082 * More overflow detection functions.
1084 * New iconv converters for IBM1025, IBM1122, IBM1137, IBM1153,
1085 IBM1154, IBM1155, IBM1156, IBM1157, and IBM1158 contributed by Jiro Sekiba.
1087 More converters for IBM803, IBM901, IBM902, IBM921, IBM1008, IBM1097,
1088 IBM1112, IBM1123, IBM1130, IBM1140, IBM1141, IBM1142, IBM1143, IBM1144,
1089 IBM1145, IBM1146, IBM1147, IBM1148, IBM1149, IBM1166, IBM1167, IBM4517,
1090 IBM4899, IBM4909, IBM4971, IBM5347, IBM9030, IBM9066, IBM9448, IBM12712,
1091 IBM16804, IBM1364, IBM1371, IBM1388, IBM1390, and IBM1399 contributed
1092 by Masahide Washizawa.
1094 * It is now possible to install audit libraries for the dynamic linker using
1095 LD_AUDIT. Implemented by Ulrich Drepper.
1097 * The LinuxThreads add-on, providing pthreads on Linux 2.4 kernels, is no
1098 longer supported. The new NPTL implementation requires Linux 2.6 kernels.
1099 For a libc and libpthread that works well on Linux 2.4 kernels, we
1100 recommend using the stable 2.3 branch.
1102 * The new function open_wmemstream acts like open_memstream,
1103 but uses a wchar_t wide character buffer.
1105 * The new function ppoll is an improved version of poll, similar to pselect.
1107 * New interfaces: fdopendir, openat, fstatat, fchmodat, fchownat,
1108 futimesat, faccessat, mkdirat, mkfifoat, mknodat,
1109 renameat, unlinkat, linkat, symlinkat, readlinkat.
1111 * New Linux kernel system calls: unshare,
1112 inotify_init, inotify_add_watch, inotify_rm_watch.
1114 * The euidaccess function is now also known by the alias eaccess,
1115 for compatibility with some other systems.
1117 * Timezone data updated to 2006b version.
1121 * The following bugs are resolved with this release:
1123 38, 253, 549, 622, 653, 721, 758, 851, 877, 915, 934, 955, 961,
1124 1016, 1037, 1076, 1079, 1080, 1081, 1082, 1083, 1084, 1085, 1086,
1125 1087, 1088, 1090, 1091, 1092, 1093, 1094, 1095, 1096, 1097, 1098,
1126 1099, 1100, 1101, 1102, 1103, 1104, 1105, 1106, 1107, 1108, 1109,
1127 1110, 1111, 1112, 1113, 1125, 1137, 1138, 1249, 1250, 1251, 1252,
1128 1253, 1254, 1350, 1358, 1394, 1438, 1498, 1534
1130 Visit <http://sources.redhat.com/bugzilla/> for the details of each bug.
1132 * As of this release, GCC 4 can be used to compile the C Library.
1134 * Timezone data updated to 2005m version.
1138 * The following bugs are resolved with this release:
1140 284, 592, 602, 626, 633, 640, 650, 661, 671, 681, 693, 700, 710, 719,
1141 722, 723, 725, 726, 727, 728, 729, 730, 731, 732, 733, 734, 735, 736,
1142 737, 738, 739, 740, 741, 742, 743, 744, 745, 765, 767, 768, 769, 776,
1143 777, 787, 821, 822, 823, 825
1145 Visit <http://sources.redhat.com/bugzilla/> for the details of each bug.
1149 * Support for RFC 3678. Real implementations exist only for Linux so far.
1150 Implemented by Ulrich Drepper.
1152 * nscd can now cache entries persistently. Expiring entries are reloaded.
1153 For speedups the cache can be shared in memory with client processes.
1154 Implemented by Ulrich Drepper.
1156 * nscd can now perform SELinux checks.
1157 Implemented by Matthew Rickard <mjricka@epoch.ncsc.mil>.
1159 * getaddrinfo queries are now cached. Canonical name lookup is performed
1161 Implemented by Ulrich Drepper.
1163 * The nothrow function attribute is used when headers are used by gcc when
1164 compiling C code. This can avoid significant amounts of exception
1167 * The malloc functions perform more error checking and are stricter when
1168 it comes to reacting on errors. The default action is to terminate
1169 the process after showing an error message. Implemented by Ulrich Drepper.
1171 * Reverse lookups of IPv6 addresses does not use bit string or .ip6.int
1172 lookups anymore unless explicitly requested. Implemented by Ulrich Drepper.
1174 * Namespaces in ld.so are implemented. DSOs can be loaded in separate
1175 namespaces using the new function dlmopen(). This feature is of course,
1176 like most other dynamic loading functionality, not available in statically
1177 linked applications. Implemented by Ulrich Drepper.
1179 * Low-overhead boundary checking variants of string and some stdio functions
1180 were added. These are to be used in conjunction with a gcc patch by
1181 Jakub Jelinek which adds calls to these functions if possible.
1182 Implemented by Jakub Jelinek and Ulrich Drepper.
1184 * Old code for several operating systems and machine architectures that
1185 have not been in working condition in a long time have been removed from
1186 the main source tree maintained by the GNU C Library's maintainers.
1187 These files are now reside in the separate `ports' source module
1188 that is usable as an add-on when building the library.
1192 * New functions `dladdr1' and `dlinfo' in <dlfcn.h> provide more ways to
1193 interrogate the dynamic linker, compatible with the Solaris interface.
1195 * ELF thread-local storage support (TLS) now works on PowerPC and PowerPC64;
1196 implemented by Paul Mackerras, Steven Munroe, and Roland McGrath.
1198 * getifaddrs now uses the netlink interface on Linux to get its information.
1199 Implemented by Thorsten Kukuk.
1201 * getaddrinfo now implements AI_V4MAPPED, AI_ALL, and AI_ADDRCONF.
1202 Implemented by Ulrich Drepper.
1204 * support for non-executable stacks on x86 has been added. Changes mostly
1207 * regex is now much faster for multibyte locales. Changes by Jakub Jelinek
1210 * getaddrinfo now performs destination address selection according to
1215 * Thread-safe interfaces for many functions that access locale data
1216 were added in version 2.3, but these features were omitted from NEWS.
1217 Many functions have variants with an `_l' suffix that take a `locale_t'
1218 object as a parameter rather than consulting the current locale.
1219 The new functions `newlocale', `duplocale', and `freelocale' in <locale.h>
1220 create and maintain `locale_t' objects. Additionally, the new function
1221 `uselocale' sets "the current locale" (as used by functions not so
1222 parameterized) set for an individual thread. These features were added
1223 in version 2.3, implemented by Ulrich Drepper and Roland McGrath.
1225 * The functions getresuid, getresgid, setresuid, and setresgid, which
1226 have long been available on Linux, are now declared in <unistd.h>
1227 and are now also available on the Hurd.
1229 * ELF thread-local storage support (TLS) now works on x86-64.
1231 * The new dynamic string token $LIB is expanded in shared library names.
1232 This normally expands to lib, but on some 64-bit platforms to lib64 instead.
1234 * Aldy Hernandez contributed complete software floating point support for
1235 PowerPC machines with no FPU.
1237 * fexecve is implemented on Linux.
1239 * The `btowc' function should work at least twice as fast due to
1240 specialized callbacks in the iconv modules. Implemented by Bruno Haible.
1242 * With approriate thread add-ons cancelable functions are now implemented
1243 in libc.so as well. No need to call the function in libpthread. This
1244 change allowed to finally disable the incorrect and expensive handling
1245 of weak definition in ld.so.
1247 * Yet more PLT entries in libc.so have been removed. We finally arrived
1248 at the bare minimum. Startup times improved appropriately.
1250 * Support for the new Linux/x86 system call interface was added. The
1251 AT_SYSINFO auxiliary vector entry is recognized and handled.
1255 * Masahide Washizawa contributed iconv modules for IBM1163 and IBM1164
1258 * iconv (the program and the interface) now accepts empty names (excluding
1259 options like //TRANSLIT) to mean "use charset of current locale".
1261 * localedef can now transliterate characters in strings which are not in
1262 the provided charmap. The information from the input locale is used.
1264 * Prelinking support was added for ELF targets. This requires additional
1265 tools and recent versions of the GNU binutils. Contributed by Jakub Jelinek.
1267 * Read-only stdio streams now use mmap to speed up operation by eliminating
1268 copying and buffer underflows. To use add 'm' to the mode string of
1269 the fopen/fdopen/freopen call. Implemented by Ulrich Drepper.
1271 * The malloc functions were completely rewritten by Wolfram Gloger based
1272 on Doug Lea's malloc-2.7.0.c.
1274 * Isamu Hasegawa contributed a completely new and POSIX-conformant
1275 implementation of regex.
1277 * Bruno Haible upgraded the iconv and locale implementation to support
1280 * Contents of the LC_* and LANG environment variables in the CEN style are
1281 not recognized anymore. It never was used. Change by Ulrich Drepper.
1283 * The runtime (ld.so, libc, libpthread for Linux) now can handle the ELF
1284 thread-local storage (TLS) ABI on some platforms.
1285 Changes by Ulrich Drepper. SH support by Kaz Kojima.
1287 * Bruno Haible contributed iconv converters for ISO-2022-JP-3, SHIFT JIS-X0213,
1288 EUC-JISX0213, and TSCII.
1290 * New header <ifaddrs.h> with functions `getifaddrs' and `freeifaddrs':
1291 BSD-compatible interface for getting all network interface addresses.
1292 Implementation for IPv4 by Roland McGrath.
1294 * Loading of locale data is faster due to the introduction of a locale
1295 archive. Implemented by Roland McGrath and Ulrich Drepper.
1297 * Startup times are significantly reduced by not using exported functions
1298 inside the library itself. Changes by Jakub Jelinek, Roland McGrath,
1301 * Steven Munroe contributed a port to PowerPC64/Linux.
1305 * The Hurd now uses the GNU libio implementation of stdio rather than the
1306 old GNU stdio implementation, and uses a new ABI (libc.so.0.3).
1308 * The Hurd on x86 now has the `ioperm' function and <sys/io.h> header file
1309 with the same behavior as the Linux system call of the same name.
1313 * Stephen Moshier implemented log2, log10, powl and cbrtl for the
1314 128-bit long double format.
1316 * Masahide Washizawa contributed iconv modules for IBM1132, IBM1133, IBM1160,
1317 IBM1161, and IBM1162 charsets.
1319 * Andreas Jaeger contributed a port to x86-64/Linux.
1321 * Peter Bruin contributed a port to PowerPC/Hurd.
1323 * libc functions using I/O streams now can handle wide-oriented streams
1326 * optimizations in the dynamic linker. Binaries created by recent binutils
1327 versions start up quicker due to reduced time spent on relocations.
1329 * Support for use of gcc3 added by Jakub Jelinek and HJ Lu.
1333 * Stephen Moshier implemented cosh, expm1, log1p, acos, sinh, tanh,
1334 asinh, atanh, j0 for the 128-bit long double format.
1336 * Bruno Haible updated all the code handling Unicode in some form to
1337 support Unicode 3.1.
1339 * Speed of regex for single-byte locales is back to previous levels.
1340 Patch by Isamu Hasegawa.
1342 * Alpha, SPARC, and IA-64 now also using floating stacks.
1344 * Startup time of internationalized applications greatly improved through
1345 iconv cache. Use iconvconfig to generate the cache file.
1346 Contributed by Ulrich Drepper.
1348 * The IA-64 specific part of ld.so was rewritten to eliminate some pretty
1349 severe performance problems. Patch by David Mosberger.
1351 * The Hurd port got a lot more functionality like AIO, various stdio
1352 extensions, etc. Mainly done by Roland McGrath.
1354 * mtrace can now lookup symbols in shared libraries.
1358 * Intel's IA-64 math library is largely integrated. It provides fast and
1359 accurate implementatations for most basic and standard math functions
1360 in float, double, and long double format.
1362 * Stephen Moshier implemented j0, j1, jn, y0, y1, yn, lgamma, erf, erfc,
1363 and asin for the 96-bit long double format and asin, log, tan for the
1364 128-bit long double format.
1366 * The beginning of a last-bit accurate math library by IBM Haifa were added.
1367 The basic double functions exist today. Contributed by Abraham Ziv
1368 <ziv@il.ibm.com>, Moshe Olshansky <olshansk@il.ibm.com>, Ealan Henis
1369 <ealan@il.ibm.com>, and Anna Reitman <reitman@il.ibm.com>.
1371 * An asynchronous name lookup library was added. The interface is designed
1372 after POSIX AIO. The proposal was circulated beforehand to get comments.
1373 No negative ones came in. Implemented by Ulrich Drepper.
1375 * Port to S390/64bit contributed by Martin Schwidefsky
1376 <schwidefsky@de.ibm.com>.
1378 * David Mosberger <davidm@hpl.hp.com> implemented the setcontext family
1379 of functions for Linux/IA-64.
1381 * The RPC code is now thread safe. Threads can now use the same service
1382 of different services at the same time. Patch by Eric Norum
1383 <eric.norum@usask.ca> with some help by Ulrich Drepper.
1385 * Martin Schwidefsky <schwidefsky@de.ibm.com> implemented the setcontext
1386 family of functions for Linux/S390.
1388 * Ulrich Drepper <drepper@redhat.com> implemented the setcontext family
1389 of functions for Linux/x86.
1391 * Port to Linux/CRIS contributed by Axis Communications.
1395 * Lots of headers were cleaned up. Using the tool in the conform/ subdir
1396 we can now check for namespace violations and missing declarations. The
1397 result is that almost all headers are now Unix-compliant (as defined in
1398 the upcoming XPG6). The negative side is that some programs might need
1399 corrections, too, if they depend on the incorrect form of the headers in
1400 previous versions which defined too many symbols and included too many
1403 * regex now handles multibyte character sets correctly.
1404 Contributed by Isamu Hasegawa <isamu@yamato.ibm.com>.
1406 * iconv (the program) does now conform to the upcoming XPG6 and handles
1407 charmaps. Instead of the charset names the path of charmaps can be
1408 provided and the conversion happens based on this data.
1409 Contributed by Ulrich Drepper.
1411 * The locale program now provides detailed information about the installed
1416 only lists the names of the supported locales
1420 provides details such as country, language, and codeset name.
1421 Contributed by Ulrich Drepper.
1425 * The gencat program now parses the input file according to the charset
1426 selected by the LC_CTYPE category. This is important for stateful
1427 character sets. To make generating catalogs easier there is a way
1428 to overwrite the charset selected by the locale: before the first
1429 message or $ quote line the catalog can contain a line like
1431 $ codeset=ISO-8859-2
1433 to select the charset (ISO-8859-2 in this case).
1435 Implemented by Shinya Hanataka and Ulrich Drepper.
1437 * New codeset conversion modules: IBM-922 (Estonia PC codeset),
1438 IBM-1124 (Ukraine PC codeset), IBM-1129 (Vietnamese PC codeset).
1439 Contributed by Masahide Washizawa <washi@jp.ibm.com>.
1441 * Optimized string functions for Alpha ev6 and ev67 by Richard Henderson
1442 <rth@redhat.com> and Rick Gorton <rick.gorton@alpha-processor.com>.
1444 * The LANGUAGE environment variable is now ignored unless the locale is
1445 changed from the default "C" locale.
1447 * The usual bug fixes.
1451 * Greg McGary added runtime support for bounds checking using gcc's
1452 new -fbounded-pointers option. ix86 target is complete. PowerPC
1455 * Thorsten Kukuk added secure mode support to nscd.
1457 * The Berkeley db libraries have been removed.
1459 Related, the nss_db module is now in a separate package since it
1460 obviously requires a database library being available.
1462 * Wide character I/O streams implemented by Ulrich Drepper.
1464 * Functions from the extended socket API added by Ulrich Drepper.
1466 * Functions feenableexcept and fedisableexcept to control the
1467 behaviour of individual exceptions have been added by Andreas Jaeger.
1469 * ldconfig program added by Andreas Jaeger and Jakub Jelinek.
1471 * The resolver code has been updated from bind 8.2.3-T5B which supports
1472 threads. The integration was done by Andreas Jaeger, Adam D. Bradley,
1475 This change could in some situations effect backward compatibility. Since
1476 now `_res' is a thread-local instead of a global variable, modifying it
1477 in one thread does not have any effect in other threads.
1479 The resolver library was also extended to allow IPv6 as the transport
1480 protocol for the requests. This work was done by Stig Venaas.
1482 * Compatibility code for K&R C compilers has been removed from the
1483 header files. A ISO C compiler is needed to use the library
1484 (conforming to either C89 or C99 standard).
1486 * Complete rewrite of the localedef program to support multibyte character
1487 sets. Implement handling of ISO 14651 and ISO 14652. Rewrite strcoll,
1488 strxfrm, wcscoll, and wcsxfrm functions. Make isw*() functions work.
1489 Implemented by Ulrich Drepper.
1491 Bruno Haible significantly improved the generation and use of the data
1492 structures for the wide character tables.
1494 * Plural handling in gettext implemented by Ulrich Drepper.
1496 * The utmp daemon has been removed.
1498 * The port to MIPS-Linux has been finished by Andreas Jaeger.
1500 * A port to Hitachi SH3 and SH4 has been contributed by Kazumoto Kojima
1503 * POSIX clocks and timers implemented by Kaz Kylheku and Ulrich Drepper.
1505 * POSIX barriers implemented by Kaz Kylheku.
1507 * POSIX spawn function family implemented by Ulrich Drepper.
1509 * POSIX spinlocks are now available.
1511 * Timed wait functions for mutex, rwlock, and semaphores are implemented.
1513 * the configure option --enable-kernel=X.Y.Z allows to strip out
1514 compatibility for kernel versions before X.Y.Z. This is currently only
1515 implemented for Linux.
1517 * the sockaddr_in6 structure changed. The IPv6 working group added a new
1518 field sin6_scope_id. This means that all programs using IPv6 should be
1519 recompiled. Don't expect binary compatibility with previous glibc
1522 * various conversion modules for IBM character sets contributed by
1525 * IA-64 port by Jes Sorensen and HJ Lu.
1539 * New ISO C 9x function _Exit, imaxabs, and imaxdiv are added.
1541 * New xdr functions are added; some rpc functions are now 64bit clean.
1543 * Fixed a number of bugs and memory leaks (especially in NIS+ code).
1545 * Fixed known incompatibilities with glibc 2.0.
1547 * New functions lock64, strchrnul, rawmemchr, getutmp and getutmpx.
1549 * Optimized a number of functions (especially the ELF dynamic loader).
1551 * Update timezone data files.
1553 * lots of charmaps corrections
1555 * some new locale definitions and charmaps
1560 * Richard Henderson corrected size of struct timeval on Linux/Alpha to
1561 conform to POSIX member type requirements. Symbol versions have been
1562 adjusted as needed within the library, and for direct use by applications,
1563 but there is potential for problems if third-party libraries use
1564 struct timeval as part of their interface. This does not present
1565 a problem for X and other "essential" system libraries.
1567 * An additional locale model to support C++ Standard Library locale
1568 model and probably more was implemented by Ulrich Drepper.
1570 * Eric Youngdale and Ulrich Drepper implemented versioning of objects on
1573 * Miles Bader provided the `argp' function family to support hierachical
1574 command line argument parsing, layered on top of getopt.
1576 * strtod accepts new hexadecimal floating-point format from ISO C 9X.
1578 * printf has two new specifiers %a and %A to print hexadecimal flaoting-point
1581 * scanf recognizes the %a and %A format for scanning floating point numbers.
1583 * the new headers <stdint.h> and <inttypes.h> from ISO C 9X provides
1584 information and interfaces for the available integer types.
1586 * about 130 new math functions were added to implement the ISO C9x math
1589 * the new header <complex.h> contains definitions of the complex math
1590 functions from ISO C 9X.
1592 * the new header <tgmath.h> defines generic macros to use complex or
1593 real valued functions.
1595 * Thorsten Kukuk provided an implementation for NIS+, securelevel 0, 1 and 2.
1597 * Andreas Jaeger provided a test suite for the math library.
1599 * Mark Kettenis implemented the utmpx interface and an utmp daemon.
1601 * Ulrich Drepper added character set conversion functions (iconv).
1603 * Optimized string functions have been added.
1605 * The localedata addon is now part of glibc.
1607 * An implementation of profiling shared libraries was added by Ulrich Drepper.
1609 * Thorsten Kukuk and Ulrich Drepper provided an implementation for a caching
1610 daemon for NSS (nscd).
1612 Missing a better place here are some numbers on improvements. Under
1613 Linux 2.1.125 un-tar-ing the kernel sources takes
1617 using local files 12.19s 6.88s 22.91s
1619 using NIS 13.92s 8.91s 26.34s
1621 using NIS & nscd 10.37s 7.34s 25.30s
1623 using NIS+ 27.57s 30.37s 640.46s
1625 using NIS+ & nscd 10.25s 7.83s 26.51s
1627 using NIS & old nscd [1] 13.83s 8.32s 29.60s
1629 Keep in mind that non-namelookup related operations dominate above times.
1630 It was just a common complain that using NIS+ unpacking the kernel is
1633 [1] The old nscd implementation is not available anymore since it was
1634 distributed with glibc up to version 2.0.98 and thus is now replaced.
1636 * Tim Waugh provided an implementation of the POSIX.2 wordexp function family.
1638 * Mark Kettenis provided a Hesiod NSS module.
1640 * The ELF dynamic loader knows how to process dynamic string tokens ($ORIGIN
1641 and $PLATFORM) in RPATHs and similar strings (Ulrich Drepper).
1643 * rcmd can now handle netgroups (Dick Streefland).
1645 * A port to the ARM was contributed by Phil Blundell, Pat Beirne and Scott
1648 * Support for the IPv6 protocol has been added to the socket API, as per the
1649 latest draft standards.
1651 * Support for Linux 2.2 has been added.
1653 * Interface changes relative to the latest 2.0.x release:
1654 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1655 addseverity NEW: Unix98
1656 alphasort64 NEW: LFS
1657 argp_err_exit_status NEW: argp, GNU ext
1658 argp_error NEW: argp, GNU ext
1659 argp_failure NEW: argp, GNU ext
1660 argp_help NEW: argp, GNU ext
1661 argp_parse NEW: argp, GNU ext
1662 argp_program_bug_address NEW: argp, GNU ext
1663 argp_program_version NEW: argp, GNU ext
1664 argp_program_version_hook NEW: argp, GNU ext
1665 argp_state_help NEW: argp, GNU ext
1666 argp_usage NEW: argp, GNU ext
1667 authdes_create NEW: Secure RPC
1668 authdes_getucred NEW: Secure RPC
1669 authdes_pk_create NEW: Secure RPC
1670 backtrace NEW: GNU ext.
1671 backtrace_symbols NEW: GNU ext.
1672 backtrace_symbols_fd NEW: GNU ext.
1674 cacosf NEW: ISO C 9x
1675 cacosh NEW: ISO C 9x
1676 cacoshf NEW: ISO C 9x
1677 cacoshl NEW: ISO C 9x
1678 cacosl NEW: ISO C 9x
1685 casinf NEW: ISO C 9x
1686 casinh NEW: ISO C 9x
1687 casinhf NEW: ISO C 9x
1688 casinhl NEW: ISO C 9x
1689 casinl NEW: ISO C 9x
1691 catanf NEW: ISO C 9x
1692 catanh NEW: ISO C 9x
1693 catanhf NEW: ISO C 9x
1694 catanhl NEW: ISO C 9x
1695 catanl NEW: ISO C 9x
1696 cbc_crypt NEW: Secure RPC
1700 ccoshf NEW: ISO C 9x
1701 ccoshl NEW: ISO C 9x
1707 cimagf NEW: ISO C 9x
1708 cimagl NEW: ISO C 9x
1709 clearerr_locked REMOVED
1710 clntunix_create NEW: sunrpc ext
1712 clog10 NEW: ISO C 9x
1713 clog10f NEW: ISO C 9x
1714 clog10l NEW: ISO C 9x
1724 cprojf NEW: ISO C 9x
1725 cprojl NEW: ISO C 9x
1727 crealf NEW: ISO C 9x
1728 creall NEW: ISO C 9x
1733 csinhf NEW: ISO C 9x
1734 csinhl NEW: ISO C 9x
1737 csqrtf NEW: ISO C 9x
1738 csqrtl NEW: ISO C 9x
1742 ctanhf NEW: ISO C 9x
1743 ctanhl NEW: ISO C 9x
1745 des_setparity NEW: Secure RPC
1746 ecb_crypt NEW: Secure RPC
1747 endutxent NEW: Unix98
1749 exp10f NEW: ISO C 9x
1750 exp10l NEW: ISO C 9x
1754 fattach NEW: STREAMS
1755 fdetach NEW: STREAMS
1759 feclearexcept NEW: ISO C 9x
1760 fegetenv NEW: ISO C 9x
1761 fegetexceptflag NEW: ISO C 9x
1762 fegetround NEW: ISO C 9x
1763 feholdexcept NEW: ISO C 9x
1765 feraiseexcept NEW: ISO C 9x
1766 ferror_locked REMOVED
1767 fesetenv NEW: ISO C 9x
1768 fesetexceptflag NEW: ISO C 9x
1769 fesetround NEW: ISO C 9x
1770 fetestexcept NEW: ISO C 9x
1771 feupdateenv NEW: ISO C 9x
1772 fflush_locked REMOVED
1776 fgets_unlocked NEW: GNU ext.
1777 fileno_locked REMOVED
1789 fputc_locked REMOVED
1790 fputs_unlocked NEW: GNU ext.
1791 fread_unlocked NEW: GNU ext.
1796 fstatvfs NEW: Unix98
1800 ftruncate64 NEW: LFS
1802 fwrite_unlocked NEW: GNU ext.
1803 gai_strerror NEW: IPv6
1807 getchar_locked REMOVED
1809 getdate_err NEW: Unix98
1810 getdate_r NEW: GNU ext.
1812 getnameinfo NEW: IPv6
1813 getnetname NEW: Secure RPC
1814 getpmsg NEW: STREAMS
1815 getpt NEW: Unix98 PTY
1816 getrlimit64 NEW: LFS
1817 getutxent NEW: Unix98
1818 getutxid NEW: Unix98
1819 getutxline NEW: Unix98
1820 glob64 NEW: GNU ext.
1821 globfree64 NEW: GNU ext.
1822 gnu_get_libc_release NEW: GNU ext.
1823 gnu_get_libc_version NEW: GNU ext.
1824 grantpt NEW: Unix98 PTY
1825 host2netname NEW: Secure RPC
1827 iconv_close NEW: iconv
1828 iconv_open NEW: iconv
1829 if_freenameindex NEW: IPv6
1830 if_indextoname NEW: IPv6
1831 if_nameindex NEW: IPv6
1832 if_nametoindex NEW: IPv6
1833 in6addr_any NEW: IPv6
1834 in6addr_loopback NEW: IPv6
1835 inet6_isipv4mapped NEW: IPv6
1836 isastream NEW: STREAMS
1837 iswblank NEW: GNU ext.
1838 key_decryptsession NEW: Secure RPC
1839 key_decryptsession_pk NEW: Secure RPC
1840 key_encryptsession NEW: Secure RPC
1841 key_encryptsession_pk NEW: Secure RPC
1842 key_gendes NEW: Secure RPC
1843 key_get_conv NEW: Secure RPC
1844 key_secretkey_is_set NEW: Secure RPC
1845 key_setnet NEW: Secure RPC
1846 key_setsecret NEW: Secure RPC
1847 llrint NEW: ISO C 9x
1848 llrintf NEW: ISO C 9x
1849 llrintl NEW: ISO C 9x
1850 llround NEW: ISO C 9x
1851 llroundf NEW: ISO C 9x
1852 llroundl NEW: ISO C 9x
1857 lrintf NEW: ISO C 9x
1858 lrintl NEW: ISO C 9x
1859 lround NEW: ISO C 9x
1860 lroundf NEW: ISO C 9x
1861 lroundl NEW: ISO C 9x
1863 makecontext NEW: Unix98
1864 mempcpy NEW: GNU ext.
1867 modify_ldt NEW: kernel
1871 nearbyint NEW: ISO C 9x
1872 nearbyintf NEW: ISO C 9x
1873 nearbyintl NEW: ISO C 9x
1874 netname2host NEW: Secure RPC
1875 netname2user NEW: Secure RPC
1876 nexttoward NEW: ISO C 9x
1877 nexttowardf NEW: ISO C 9x
1878 nexttowardl NEW: ISO C 9x
1882 passwd2des NEW: Secure RPC
1884 pow10f NEW: GNU ext.
1885 pow10l NEW: GNU ext.
1888 printf_size NEW: GNU ext.
1889 printf_size_info NEW: GNU ext.
1890 profil_counter REMOVED
1891 pthread_mutexattr_getkind_np REPLACED
1892 pthread_mutexattr_setkind_np REPLACED
1893 ptsname NEW: Unix98 PTY
1894 ptsname_r NEW: Unix98 PTY
1896 putchar_locked REMOVED
1897 putgrent NEW: GNU ext.
1899 putpmsg NEW: STREAMS
1900 pututxline NEW: Unix98
1904 readdir64_r NEW: LFS
1905 remquo NEW: ISO C 9x
1906 remquof NEW: ISO C 9x
1907 remquol NEW: ISO C 9x
1909 roundf NEW: ISO C 9x
1910 roundl NEW: ISO C 9x
1912 scalbln NEW: ISO C 9x
1913 scalblnf NEW: ISO C 9x
1914 scalblnl NEW: ISO C 9x
1916 sendfile NEW: kernel
1917 setcontext NEW: Unix98
1918 setrlimit64 NEW: LFS
1919 setutxent NEW: Unix98
1921 sigignore NEW: Unix98
1922 sigqueue NEW: POSIX.1b
1923 sigrelse NEW: Unix98
1924 sigset NEW: POSIX.1b
1925 sigtimedwait NEW: POSIX.1b
1926 sigwaitinfo NEW: POSIX.1b
1927 sincos NEW: GNU ext.
1928 sincosf NEW: GNU ext.
1929 sincosl NEW: GNU ext.
1933 strcasestr NEW: GNU ext.
1934 strtoimax NEW: ISO C 9x
1935 strtoumax NEW: ISO C 9x
1936 strverscmp NEW: GNU ext.
1937 svcauthdes_stats NEW: Secure RPC
1938 svcunix_create NEW: sunrpc etx
1939 svcunixfd_create NEW: sunrpc ext
1940 swapcontext NEW: Unix98
1941 tcgetsid NEW: Unix98 PTY
1942 tdestroy NEW: GNU ext.
1943 tgamma NEW: ISO C 9x
1944 tgammaf NEW: ISO C 9x
1945 tgammal NEW: ISO C 9x
1949 truncf NEW: ISO C 9x
1950 truncl NEW: ISO C 9x
1952 unlockpt NEW: Unix98 PTY
1953 updwtmpx NEW: Unix98
1954 user2netname NEW: Secure RPC
1955 utmpxname NEW: Unix98
1956 versionsort NEW: GNU ext.
1957 versionsort64 NEW: GNU ext.
1959 wcscasecmp NEW: GNU ext.
1960 wcsncasecmp NEW: GNU ext.
1961 wcsnlen NEW: GNU ext.
1962 wcstoimax NEW: ISO C 9x
1963 wcstoll NEW: ISO C 9x
1964 wcstoull NEW: ISO C 9x
1965 wcstoumax NEW: ISO C 9x
1967 wordexp NEW: POSIX.2
1968 wordfree NEW: POSIX.2
1969 write_profiling REMOVED
1970 xdecrypt NEW: Secure RPC
1971 xdr_authdes_cred NEW: Secure RPC
1972 xdr_authdes_verf NEW: Secure RPC
1973 xdr_cryptkeyarg NEW: Secure RPC
1974 xdr_cryptkeyarg2 NEW: Secure RPC
1975 xdr_cryptkeyres NEW: Secure RPC
1976 xdr_getcredres NEW: Secure RPC
1977 xdr_key_netstarg NEW: Secure RPC
1978 xdr_key_netstres NEW: Secure RPC
1979 xdr_keybuf NEW: Secure RPC
1980 xdr_keystatus NEW: Secure RPC
1981 xdr_netnamestr NEW: Secure RPC
1982 xdr_sizeof NEW: Secure RPC
1983 xdr_unixcred NEW: sunrpc ext
1984 xencrypt NEW: Secure RPC
1985 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1996 * inet_ntoa is thread-safe
1998 * updwtmp is moved from libutil to libc
2000 * rewrite of cbrt function
2002 * update of timezone data
2016 * add atoll function
2018 * fix complex problems in Berkeley DB code
2020 * fix math functions
2024 * fixed lots of header problems (especially Linux/GNU specific)
2026 * dynamic loader preserves all registers
2028 * Roland McGrath provided support for handling of auxiliary objects in
2029 the ELF dynamic loader.
2031 * support for parallel builds is improved
2035 * GNU extensions are no longer declared by default. To enable them you
2036 must define the macro `_GNU_SOURCE' in your program or compile with
2039 * The library has changed from using GNU ld symbol aliases to using weak
2040 symbols where available. The ELF object file format supports weak
2041 symbols; GNU ld also supports weak symbols in the a.out format. (There
2042 is also now support for other GNU ld extensions in ELF. Use the
2043 `--with-elf' option to configure to indicate you have ELF, and
2044 `--with-gnu-ld' if using GNU ld.) This change resulted in the deletion
2045 of many files which contained only symbol aliases, reducing the size of
2046 the source and the compiled library; many other files were renamed to
2047 less cryptic names previously occupied by the symbol alias files.
2048 There is a new header file <elf.h> for programs which operate on
2049 files in the ELF format.
2051 * Converted to Autoconf version 2, so `configure' has more options.
2052 Run `configure --help' to see the details.
2054 * The library can now be configured to build profiling, highly-optimized
2055 (but undebuggable), and/or shared libraries (ELF with GNU ld only). The
2056 `--enable-profile', `--enable-omitfp', and `--enable-shared' options to
2057 `configure' enable building these extra libraries. The shared library is
2058 built by default when using both ELF and GNU ld. When shared libraries
2059 are enabled, the new library `-ldl' is available for arbitrary run-time
2060 loading of shared objects; its interface is defined in <dlfcn.h>. The
2061 new header file <link.h> gives access to the internals of the run-time
2062 dynamic linker, `ld.so'. The shell script `ldd' is similar to the
2063 application of same name on other systems and it provides information
2064 about dynamically linked binaries.
2066 * The C library now provides the run-time support code for profiling
2067 executables compiled with `-pg'. Programs can control the profiling code
2068 through the interface in <sys/gmon.h>. The `gmon.out' files written by
2069 the GNU C library can be read only by GNU `gprof' (from GNU binutils);
2070 the support for this file format was contributed by David Mosberger-Tang.
2072 * The math code has been replaced with a math library based on fdlibm from
2073 Sun, and modified by JT Conklin and Ulrich Drepper with i387 support, by
2074 Ian Taylor with `float' functions and by Ulrich Drepper with `long double'
2075 functions. The math functions now reside in a separate library, so
2076 programs using them will need to use `-lm' their linking commands.
2078 * John C. Bowman contributed optimized ix87 assembler inline functions.
2080 * Ulrich Drepper has contributed support for an `/etc/nsswitch.conf'
2081 mechanism similar to that found in Solaris 2. This is now used for the
2082 group, passwd, hosts, networks, services, protocols, rpc, ethers,
2083 shadow, netgroup, publickey, and alias databases. The `nsswitch.conf'
2084 file controls what services are used for each individual database. This
2085 works by loading shared libraries with names specified in `nsswitch.conf',
2086 so service modules can be changed or added at any time without even
2087 relinking any program. Currently there are the file, db, and NIS based
2088 NSS services available.
2090 * The new functions `strtoq' and `strtouq' parse integer values from
2091 strings, like `strtol' and `strtoul', but they return `long long int' and
2092 `unsigned long long int' values, respectively (64-bit quantities).
2094 * The new functions `strtof' and `strtold' parse floating-point values from
2095 strings, like `strtod', but they return `float' and `long double' values,
2096 respectively (on some machines `double' and `long double' are the same).
2098 * Ulrich Drepper has contributed new implementations of the floating-point
2099 printing and reading code used in the `printf' family of functions and
2100 `strtod', `strtof', and `strtold'. These new functions are perfectly
2101 accurate, and much faster than the old ones.
2103 * The implementation of the POSIX locale model was completely rewritten by
2104 Ulrich Drepper. This includes the new programs `localedef' and `locale'
2105 to compile the POSIX locale definition.
2107 * The former dummy implementations of the strcoll and strxfrm function are
2108 now replaced by fully functional code contributed by Ulrich Drepper. The
2109 collation information comes from the POSIX locale definitions.
2111 * The new header <langinfo.h> defines an interface for accessing
2112 various locale-dependent data (using the locale chosen with `setlocale').
2114 * Ulrich Drepper has contributed a new suite of functions for operation on
2115 wide-character and multibyte-character strings, in <wchar.h>;
2116 and classification and case conversion of wide characters, in <wctype.h>.
2117 These new functions are conforming to the ISO C, Amendement 1 specification.
2119 * There is now a second implementation of the standard I/O library available.
2120 It comes from GNU libg++ as was written by Per Bothner, heavily modified
2121 by Hongjiu Lu and made thread safe by Ulrich Drepper.
2123 * You can now use positional parameter specifications in format strings
2124 for the `printf' and `scanf' families of functions. For example,
2125 `printf ("Number %2$d, Mr %1$s\n", "Jones", 6);'' prints
2126 ``Number 6, Mr Jones''. This is mainly useful when providing different
2127 format strings for different languages, whose grammars may dictate
2128 different orderings of the values being printed. To support this
2129 feature, the interface for `register_printf_handler' has changed; see
2130 the header file <printf.h> for details.
2132 * The `printf' and `scanf' families of functions now understand a new
2133 formatting flag for numeric conversions: the ' flag (e.g. %'d or %'f) says
2134 to group numbers as indicated by the locale; for `scanf' and friends, this
2135 says to accept as valid only a number with all the proper grouping
2136 separators in the right places. In the default "C" locale, numbers are
2137 not grouped; but locales for specific countries will define the usual
2138 conventions (i.e. separate thousands with `,' in the US locale).
2140 * The pgrp functions have been regularized, slightly incompatibly but much
2141 less confusingly. The core functions are now `getpgid' and `setpgid',
2142 which take arguments for the PID to operate on; the POSIX.1 `getpgrp' (no
2143 argument) and BSD `setpgrp' (identical to `setpgid') functions are
2144 provided for compatibility. There is no longer an incompatible `getpgrp'
2145 with an argument declared under _BSD_SOURCE; no BSD code uses it.
2147 * The new header file <fts.h> and suite of functions simplify programs that
2148 operate on directory trees. This code comes from 4.4 BSD.
2150 * The resolver code has been updated from the BIND 4.9.5-P1 release.
2151 Parts of the code were heavily modified by Ulrich Drepper to fit in the
2152 NSS scheme used in glibc.
2154 * There is a new malloc debugging hook `__memalign_hook'.
2156 * There are new typedefs `ushort' for `unsigned short int' and `uint' for
2157 `unsigned int' in <sys/types.h>. These are for compatibility only and
2158 their use is discouraged.
2160 * The `-lmcheck' library to enable standard malloc debugging hooks is now
2161 done differently, so that it works even without GNU ld.
2163 * New function `euidaccess' checks allowed access to a file like `access',
2164 but using the effective IDs instead of the real IDs.
2166 * The time zone data files have been updated for the latest and greatest
2167 local time conventions of the countries of the world.
2169 * The new function `dirfd' extracts the file descriptor used by a DIR stream;
2172 * The new functions `ecvt', `fcvt', and `gcvt' provide an obsolete interface
2173 for formatting floating-point numbers. They are provided only for
2174 compatibility; new programs should use `sprintf' instead. There are
2175 also equivalent function for the `long double' floating-point type and
2176 all functions also exist in a reentrant form.
2178 * The new auxiliary library `-lutil' from 4.4 BSD contains various
2179 functions for maintaining the login-record files (primarily of use to
2180 system programs such as `login'), and convenient functions for
2181 allocating and initializing a pseudo-terminal (pty) device.
2183 * Ulrich Drepper has contributed new support for System V style
2184 shared memory and IPC on systems that support it.
2186 * Ulrich Drepper has contributed several miscellaneous new functions found
2187 in System V: The `hsearch' family of functions provide an effective
2188 implementation of hash tables; `a64l' and `l64a' provide a very simple
2189 binary to ASCII mapping; `drand48' and friends provide a 48-bit random
2192 * Ulrich Drepper has contributed new reentrant counterparts for the
2193 `random' and `hsearch' families of functions; `random_r', `hsearch_r', etc.
2195 * Ulrich Drepper has contributed new, highly-optimized versions of several
2196 string functions for the i486/Pentium family of processors.
2198 * Ulrich Drepper has updated the Linux-specific code, based largely
2199 on work done in Hongjiu Lu's version of GNU libc for Linux.
2200 The GNU library now supports Linux versions 2.0.10 and later,
2201 using the ELF object file format (i[3456]86-*-linux).
2203 * Andreas Schwab has ported the C library to Linux/m68k (m68k-*-linux).
2205 * David Mosberger-Tang and Richard Henderson have ported the C library
2206 to Linux/Alpha (alpha-*-linux). Richard Henderson contributed the
2207 dynamic linking support for ELF/Alpha.
2209 * Richard Henderson contributed several Alpha optimized assembler function
2210 for arithmetic and string handling.
2212 * Ulrich Drepper has contributed a new set of message catalog functions to
2213 support multiple languages using the <libintl.h> interface, for use with
2214 his new package GNU gettext. Translation volunteers have contributed
2215 catalogs of the library's messages in Spanish, German, and Korean.
2217 * For compatibility with XPG4, Ulrich Drepper has contributed the `gencat'
2218 program and the `catgets' function for reading the catalog files it
2219 creates. (The <libintl.h> interface is preferred; we include the
2220 <nl_types.h> interface using `catgets' only for source compatibility with
2221 programs already written to use it.)
2223 * New header file <values.h> gives SVID-compatible names for <limits.h>
2226 * Various new macros, declarations, and small header files for compatibility
2229 * New function `group_member' is a convenient way to check if a process has
2230 a given effective group ID.
2232 * When using GCC 2.7 and later, the socket functions are now declared in a
2233 special way so that passing an argument of type `struct sockaddr_in *',
2234 `struct sockaddr_ns *', or `struct sockaddr_un *' instead of the generic
2235 `struct sockaddr *' type, does not generate a type-clash warning.
2237 * New function `error' declared in header file <error.h> is a convenient
2238 function for printing error messages and optionally exiting; this is the
2239 canonical function used in GNU programs. The new functions `err', `warn',
2240 and friends in header file <err.h> are the canonical 4.4 BSD interface for
2241 doing the same thing.
2243 * The <glob.h> interface has several new flags from 4.4 BSD that extend the
2244 POSIX.2 `glob' function to do ~ and {...} expansion.
2246 * New function `unsetenv' complements `setenv' for compatibility with 4.4 BSD.
2247 `clearenv' which is used in POSIX.9 is also available.
2249 * New function `getsid' returns session ID number on systems that support it.
2251 * We have incorporated the 4.4 BSD `db' library (version 1.85). New header
2252 files <db.h> and <mpool.h> provide a rich set of functions for several
2253 types of simple databases stored in memory and in files, and <ndbm.h> is
2254 an old `ndbm'-compatible interface using the `db' functions. Link with
2255 `-ldb' to get these functions.
2257 * New macro `strdupa' copies a string like `strdup', but uses local stack
2258 space from `alloca' instead of dynamic heap space from `malloc'.
2260 * New function `strnlen' is like `strlen' but searches only a given maximum
2261 number of characters for the null terminator. `stpncpy', `strndup' and
2262 `strndupa' are similar variants for the `stpcpy', `strdup' and `strdupa'
2265 * New function `statfs' in header <sys/statfs.h>.
2267 * The new <argz.h> and <envz.h> interfaces contributed by Miles Bader
2268 provide convenient functions for operating on blocks of null-terminated
2271 * A new suite of functions in <utmp.h> handle all the details of reading
2272 and writing the utmp file.
2274 * An implementation of the NIS/YP(tm) based NSS service was contributed by
2277 * Paul Eggert and Ulrich Drepper modified the `strftime' function to be
2278 completely POSIX compliant and also implemented the extended functionality
2279 to handle alternate digit representation and alternate era date formats.
2281 * Ulrich Drepper provided an implementation of the `strptime' function
2282 defined in XPG4.2 which transforms a string into a `struct tm' value.
2284 * Paul Eggert provided the tzselect shell script as part of the timezone
2285 code. The shell script makes it easy to select the correct timezone
2288 * The implementation of the malloc family of functions is completely replaced
2289 by a new implementation by Doug Lea with many improvements by Wolfram Gloger.
2290 The implementation uses the mmap function (if available) and it is
2291 optimized for the use in multi threaded programs.
2293 * Ulrich Drepper contributed a MD5 "encryption" for the crypt family of
2294 functions. This new functionality is usable by specifying a special
2295 salt string and it is compatible with implementation on *BSD systems.
2297 * Lots of functions from the XPG4.2 standard were added by Ulrich Drepper:
2298 `getsubopt' to handle second level command line options, `bsd_signal'
2299 to access BSD style `signal' functionality, the obsolete `regexp' style
2302 * the `lchown' function is available on system which support this
2305 * The implementation of the shadow password handling function was contributed
2308 * David Mosberger-Tang changed the SunRPC implementation to be 64bit safe.
2310 * POSIX.1g support was added. The <sys/select.h> header is available,
2311 `isfdtype' and `pselect' are implemented. Craig Metz contributed an
2312 implementation of `getaddrinfo'.
2316 * For cross-compilation you should now set `BUILD_CC' instead of `HOST_CC'.
2318 * New header file <fstab.h> and new functions `getfsspec', `getfsent' and
2319 friends, for parsing /etc/fstab. This code comes from 4.4 BSD.
2321 * The new function `daemon' from 4.4 BSD is useful for server programs that
2322 want to put themselves in the background.
2324 * Joel Sherrill has contributed support for several standalone boards that
2325 run without an operating system.
2327 * `printf', `scanf' and friends now accept a `q' type modifier for long
2328 long int as well as `ll'. Formats using these might be `%qu' or `%lld'.
2330 * All of the code taken from BSD (notably most of the math and networking
2331 routines) has been updated from the BSD 4.4-Lite release.
2333 * The resolver code has been updated from the BIND-4.9.3-BETA9 release.
2335 * The new functions `getdomainname' and `setdomainname' fetch or change the
2336 YP/NIS domain name. These are system calls which exist on systems which
2339 * The time zone data files have been updated for the latest international
2342 * The SunRPC programs `portmap' and `rpcinfo' are now installed in
2343 $(sbindir) (usually /usr/local/sbin) instead of $(bindir).
2347 * The C library now includes support for Sun RPC, from Sun's free
2348 RPCSRC-4.0 distribution. The `portmap', `rpcinfo', and `rpcgen' programs
2349 are included. (There is still no support for YP.)
2351 * Tom Quinn has contributed a port of the C library to SGI machines running
2352 Irix 4 (mips-sgi-irix4).
2354 * The new `lockf' function is a simplified interface to the locking
2355 facilities of `fcntl', included for compatibility.
2357 * New time functions `timegm', `timelocal', and `dysize' for compatibility.
2359 * New header file <sys/timeb.h> and new function `ftime' for compatibility.
2361 * New header files <poll.h> and <sys/poll.h> and new function `poll' for
2364 * The error message printed by `assert' for a failed assertion now includes
2365 the name of the program (if using GNU ld) and the name of the calling
2366 function (with versions of GCC that support this).
2368 * The `psignal' function is now declared in <signal.h>, not <stdio.h>.
2370 * The library now includes the <sys/mman.h> header file and memory
2371 management functions `mmap', `munmap', `mprotect', `msync', and
2372 `madvise', on systems that support those facilities.
2374 * The interface for `mcheck' has changed slightly: the function called to
2375 abort the program when an allocation inconsistency is detected now takes
2376 an argument that indicates the type of failure. The new function
2377 `mprobe' lets you request a consistency check for a particular block at
2378 any time (checks are normally done only when you call `free' or `realloc'
2381 * It is now possible to easily cross-compile the C library, building on one
2382 system a library to run on another machine and/or operating system. All
2383 you need to do is set the variable `HOST_CC' in `configparms' to the
2384 native compiler for programs to run on the machine you are building on (a
2385 few generator programs are used on Unix systems); set `CC' to the
2388 * The new function `fexecve' (only implemented on the GNU system) executes
2389 a program file given a file descriptor already open on the file.
2393 * Brendan Kehoe has contributed most of a port to the DEC Alpha
2394 running OSF/1 (alpha-dec-osf1). He says it is 75% complete.
2396 * You can set the variable `libprefix' in `configparms' to specify a prefix
2397 to be prepended to installed library files; this makes it easy to install
2398 the GNU C library to be linked as `-lgnuc' or whatever.
2400 * The new `stpncpy' is a cross between `stpcpy' and `strncpy': It
2401 copies a limited number of characters from a string, and returns the
2402 address of the last character written.
2404 * You no longer need to check for whether the installed `stddef.h' is
2405 compatible with the GNU C library. configure now checks for you.
2407 * You can now define a per-stream `fileno' function to convert the
2408 stream's cookie into an integral file descriptor.
2410 * ``malloc (0)'' no longer returns a null pointer. Instead, it
2411 allocates zero bytes of storage, and returns a unique pointer which
2412 you can pass to `realloc' or `free'. The behavior is undefined if
2413 you dereference this pointer.
2415 * The C library now runs on Sony NEWS m68k machines running either
2416 NewsOS 3 or NewsOS 4.
2418 * The new `syscall' function is a system-dependent primitive function
2419 for invoking system calls. It has the canonical behavior on Unix
2420 systems, including unreliable return values for some calls (such as
2421 `pipe', `fork' and `getppid').
2423 * The error code `EWOULDBLOCK' is now obsolete; it is always defined
2424 to `EAGAIN', which is the preferred name. On systems whose kernels
2425 use two distinct codes, the C library now translates EWOULDBLOCK to
2426 EAGAIN in every system call function.
2430 * The GNU C Library Reference Manual is now distributed with the library.
2431 `make dvi' will produce a DVI file of the printed manual.
2432 `make info' will produce Info files that you can read on line using C-h i
2433 in Emacs or the `info' program.
2434 Please send comments on the manual to bug-glibc-manual@gnu.org.
2436 * The library now supports SVR4 on i386s (i386-unknown-sysv4).
2438 * Brendan Kehoe has contributed a port to Sun SPARCs running Solaris 2.
2440 * Jason Merrill has contributed a port to the Sequent Symmetry running
2441 Dynix version 3 (i386-sequent-dynix).
2443 * The library has been ported to i386s running SCO 3.2.4 (also known as SCO
2444 ODT 2.0; i386-unknown-sco3.2.4) or SCO 3.2 (i386-unknown-sco3.2).
2446 * New function `memory_warnings' lets you arrange to get warnings when
2447 malloc is running out of memory to allocate, like Emacs gives you.
2449 * The C library now contains the relocating allocator used in Emacs 19 for
2450 its editing buffers. This allocator (ralloc) minimizes allocation
2451 overhead and fragmentation by moving allocated regions around whenever it
2452 needs to. You always refer to a ralloc'd region with a "handle" (a
2453 pointer to a pointer--an object of type `void **').
2455 * There is a new `printf' format: `%m' gives you the string corresponding
2456 to the error code in `errno'.
2458 * In `scanf' formats, you can now use `%as' or `%a[' to do the normal `%s'
2459 or `%[' conversion, but instead of filling in a fixed-sized buffer you
2460 pass, the `a' modifier says to fill in a `char **' you pass with a
2463 * The `fnmatch' function supports the new flag bits `FNM_LEADING_DIR' and
2464 `FNM_CASEFOLD'. `FNM_LEADING_DIR' lets a pattern like `foo*' match a
2465 name like `foo/bar'. `FNM_CASEFOLD' says to ignore case in matching.
2467 * `mkstemp' is a traditional Unix function to atomically create and open a
2468 uniquely-named temporary file.
2472 * The standard location for the file that says what the local timezone is
2473 has changed again. It is now `/usr/local/etc/localtime' (or more
2474 precisely, `${prefix}/etc/localtime') rather than `/etc/localtime'.
2476 * The distribution no longer contains any files with names longer than 14
2479 * `struct ttyent' has two new flag bits: TTY_TRUSTED and TTY_CONSOLE.
2480 These are set by the new `trusted' and `console' keywords in `/etc/ttys'.
2482 * New functions `ttyslot' and `syslog' from 4.4 BSD.
2486 * The configuration process has changed quite a bit. The `configure'
2487 script is now used just like the configuration scripts for other GNU
2488 packages. The `sysdeps' directory hierarchy is much rearranged.
2489 The file `INSTALL' explains the new scheme in detail.
2491 * The header files no longer need to be processed into ANSI C and
2492 traditional C versions. There is just one set of files to install, and
2493 it will work with ANSI or old C compilers (including `gcc -traditional').
2495 * Brendan Kehoe and Ian Lance Taylor have ported the library to the
2496 MIPS DECStation running Ultrix 4.
2498 * The Sun 4 startup code (crt0) can now properly load SunOS 4 shared libraries.
2499 Tom Quinn contributed the initial code. The GNU C library can NOT yet be
2500 made itself into a shared library.
2502 * Yet further improved support for the i386, running 4.3 BSD-like systems
2503 (such as Mach 3 with the Unix single-server), or System V.
2505 * New function `strncasecmp' to do case-insensitive string comparison
2506 with limited length.
2508 * New function `strsep' is a reentrant alternative to `strtok'.
2510 * New functions `scandir' and `alphasort' for searching directories.
2512 * New function `setenv' is a better interface to `putenv'.
2514 * Ian Lance Taylor has contributed an implementation of the SVID `ftw'
2515 function for traversing a directory tree.
2517 * The GNU obstack package is now also part of the C library.
2518 The new function `open_obstack_stream' creates a stdio stream that
2519 writes onto an obstack; `obstack_printf' and `obstack_vprintf' do
2520 formatted output directly to an obstack.
2522 * Miscellaneous new functions: reboot, nice, sigaltstack (4.4 BSD only),
2523 cfmakeraw, getusershell, getpass, swab, getttyent, seteuid, setegid.
2525 * `FNM_FILE_NAME' is another name for `FNM_PATHNAME', used with `fnmatch'.
2527 * The new functions `strfry' and `memfrob' do mysterious and wonderful
2528 things to your strings.
2530 * There are some new test programs: test-fseek, testmb, and testrand.
2532 * Some work has been done to begin porting the library to 4.4 BSD and Linux.
2533 These ports are not finished, but are a good starting place for really
2534 supporting those systems.
2536 * `/etc/localtime' is now the standard location for the file that says what
2537 the local timezone is, rather than `/usr/local/lib/zoneinfo/localtime'.
2538 This follows the general principle that `/etc' is the place for all local
2539 configuration files.
2541 * The C library header files now use `extern "C"' when used by the C++
2542 compiler, so the C library should now work with C++ code.
2544 * The header file <bstring.h> is gone. <string.h> now declares bcopy,
2545 bcmp, bzero, and ffs. (Update: nowadays these functions are declared
2548 * Mike Haertel (of GNU e?grep and malloc fame) has written a new sorting
2549 function which uses the `merge sort' algorithm, and is said to be
2550 significantly faster than the old GNU `qsort' function. Merge sort is
2551 now the standard `qsort' function. The new algorithm can require a lot
2552 of temporary storage; so, the old sorting function is called when the
2553 required storage is not available.
2555 * The C library now includes Michael Glad's Ultra Fast Crypt, which
2556 provides the Unix `crypt' function, plus some other entry points.
2558 * The code and header files taken from 4.4 BSD have been updated with the
2559 latest files released from Berkeley.
2561 ----------------------------------------------------------------------
2562 Copyright information:
2564 Copyright (C) 1992-2014 Free Software Foundation, Inc.
2566 Permission is granted to anyone to make or distribute verbatim copies
2567 of this document as received, in any medium, provided that the
2568 copyright notice and this permission notice are preserved,
2569 thus giving the recipient permission to redistribute in turn.
2571 Permission is granted to distribute modified versions
2572 of this document, or of portions of it,
2573 under the above conditions, provided also that they
2574 carry prominent notices stating who last changed them.
2577 version-control: never