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1 GNU C Library NEWS -- history of user-visible changes.
2 Copyright (C) 1992-2014 Free Software Foundation, Inc.
3 See the end for copying conditions.
5 Please send GNU C library bug reports via <http://sourceware.org/bugzilla/>
6 using `glibc' in the "product" field.
7 \f
8 Version 2.20
10 * The following bugs are resolved with this release:
12 6804, 13347, 15347, 15804, 15894, 16002, 16198, 16284, 16348, 16349,
13 16357, 16362, 16447, 16532, 16545, 16574, 16599, 16600, 16609, 16610,
14 16611, 16613, 16623, 16632, 16634, 16639, 16642, 16648, 16649, 16670,
15 16674, 16677, 16680, 16683, 16689, 16695, 16701, 16706, 16707, 16712,
16 16713, 16714, 16731, 16739, 16743, 16758, 16759, 16760, 16770, 16786,
17 16789, 16799, 16800, 16815.
19 * Running the testsuite no longer terminates as soon as a test fails.
20 Instead, a file tests.sum (xtests.sum from "make xcheck") is generated,
21 with PASS or FAIL lines for individual tests. A summary of the results is
22 printed, including a list of failing lists, and "make check" exits with
23 error status if there were any unexpected failures. "make check
24 stop-on-test-failure=y" may be used to keep the old behavior.
26 * The am33 port, which had not worked for several years, has been removed
27 from ports.
29 * The _BSD_SOURCE and _SVID_SOURCE feature test macros are no longer
30 supported; they now act the same as _DEFAULT_SOURCE (but generate a
31 warning). Except for cases where _BSD_SOURCE enabled BSD interfaces that
32 conflicted with POSIX (support for which was removed in 2.19), the
33 interfaces those macros enabled remain available when compiling with
34 _GNU_SOURCE defined, with _DEFAULT_SOURCE defined, or without any feature
35 test macros defined.
36 \f
37 Version 2.19
39 * The following bugs are resolved with this release:
41 156, 387, 431, 762, 832, 926, 2801, 4772, 6786, 6787, 6807, 6810, 6981,
42 7003, 9721, 9954, 10253, 10278, 11087, 11157, 11214, 12100, 12486, 12751,
43 12986, 13028, 13982, 13985, 14029, 14032, 14120, 14143, 14155, 14286,
44 14547, 14699, 14752, 14782, 14876, 14910, 15004, 15048, 15073, 15089,
45 15128, 15218, 15268, 15277, 15308, 15362, 15374, 15400, 15425, 15427,
46 15483, 15522, 15531, 15532, 15593, 15601, 15608, 15609, 15610, 15632,
47 15640, 15670, 15672, 15680, 15681, 15723, 15734, 15735, 15736, 15748,
48 15749, 15754, 15760, 15763, 15764, 15797, 15799, 15825, 15843, 15844,
49 15846, 15847, 15849, 15850, 15855, 15856, 15857, 15859, 15867, 15886,
50 15887, 15890, 15892, 15893, 15895, 15897, 15901, 15905, 15909, 15915,
51 15917, 15919, 15921, 15923, 15939, 15941, 15948, 15963, 15966, 15968,
52 15985, 15988, 15997, 16032, 16034, 16036, 16037, 16038, 16041, 16046,
53 16055, 16071, 16072, 16074, 16077, 16078, 16103, 16112, 16143, 16144,
54 16146, 16150, 16151, 16153, 16167, 16169, 16172, 16195, 16214, 16245,
55 16271, 16274, 16283, 16289, 16293, 16314, 16316, 16330, 16337, 16338,
56 16356, 16365, 16366, 16369, 16372, 16375, 16379, 16381, 16384, 16385,
57 16386, 16387, 16390, 16394, 16398, 16400, 16407, 16408, 16414, 16430,
58 16431, 16453, 16474, 16506, 16510, 16529
60 * Slovenian translations for glibc messages have been contributed by the
61 Translation Project's Slovenian team of translators.
63 * The public headers no longer use __unused nor __block. This change is to
64 support compiling programs that are derived from BSD sources and use
65 __unused internally, and to support compiling with Clang's -fblock
66 extension which uses __block.
68 * CVE-2012-4412 The strcoll implementation caches indices and rules for
69 large collation sequences to optimize multiple passes. This cache
70 computation may overflow for large collation sequences and may cause a
71 stack or buffer overflow. This is now fixed to use a slower algorithm
72 which does not use a cache if there is an integer overflow.
74 * CVE-2012-4424 The strcoll implementation uses malloc to cache indices and
75 rules for large collation sequences to optimize multiple passes and falls
76 back to alloca if malloc fails, resulting in a possible stack overflow.
77 The implementation now falls back to an uncached collation sequence lookup
78 if malloc fails.
80 * CVE-2013-4788 The pointer guard used for pointer mangling was not
81 initialized for static applications resulting in the security feature
82 being disabled. The pointer guard is now correctly initialized to a
83 random value for static applications. Existing static applications need
84 to be recompiled to take advantage of the fix (bug 15754).
86 * CVE-2013-4237 The readdir_r function could write more than NAME_MAX bytes
87 to the d_name member of struct dirent, or omit the terminating NUL
88 character. (Bugzilla #14699).
90 * CVE-2013-4332 The pvalloc, valloc, memalign, posix_memalign and
91 aligned_alloc functions could allocate too few bytes or corrupt the
92 heap when passed very large allocation size values (Bugzilla #15855,
93 #15856, #15857).
95 * CVE-2013-4458 Stack overflow in getaddrinfo with large number of results
96 for AF_INET6 has been fixed (Bugzilla #16072).
98 * New locales: ak_GH, anp_IN, ar_SS, cmn_TW, hak_TW, lzh_TW, nan_TW, pap_AW,
99 pap_CW, quz_PE, the_NP.
101 * Substantially revised locales: gd_GB, ht_HT
103 * The LC_ADDRESS field was updated to support country_car for almost all
104 supported locales.
106 * ISO 1427 definitions were updated.
108 * ISO 3166 definitions were updated.
110 * The localedef utility now supports --big-endian and --little-endian
111 command-line options to generate locales for a different system from that
112 for which the C library was built.
114 * Binary locale files now only depend on the endianness of the system for
115 which they are generated and not on other properties of that system. As a
116 consequence, binary files generated with new localedef may be incompatible
117 with old versions of the GNU C Library, and binary files generated with
118 old localedef may be incompatible with this version of the GNU C Library,
119 in the following circumstances:
121 + Locale files may be incompatible on m68k systems.
123 + Locale archive files (but not separate files for individual locales) may
124 be incompatible on systems where plain "char" is signed.
126 * The configure option --disable-versioning has been removed. Builds with
127 --disable-versioning had not worked for several years.
129 * ISO 639 definitions were updated for Chiga (cgg) and Chinese (gan, hak, czh,
130 cjy, lzh, cmn, mnp, cdo, czo, cpx, wuu, hsn, yue).
132 * SystemTap probes for malloc have been introduced.
134 * SystemTap probes for slow multiple precision fallback paths of
135 transcendental functions have been introduced.
137 * Support for powerpc64le has been added.
139 * The soft-float powerpc port now supports e500 processors.
141 * Support for STT_GNU_IFUNC symbols added for ppc32/power4+ and ppc64.
143 * A new feature test macro _DEFAULT_SOURCE is available to enable the same
144 set of header declarations that are enabled by default, even when other
145 feature test macros or compiler options such as -std=c99 would otherwise
146 disable some of those declarations.
148 * The _BSD_SOURCE feature test macro no longer enables BSD interfaces that
149 conflict with POSIX. The libbsd-compat library (which was a dummy library
150 that did nothing) has also been removed.
152 * Preliminary documentation about Multi-Thread, Async-Signal and
153 Async-Cancel Safety has been added.
154 \f
155 Version 2.18
157 * The following bugs are resolved with this release:
159 2546, 2560, 5159, 6809, 7006, 10060, 10062, 10283, 10357, 10686, 11120,
160 11561, 12310, 12387, 12492, 12515, 12723, 13550, 13889, 13951, 13988,
161 14142, 14176, 14200, 14256, 14280, 14293, 14317, 14327, 14478, 14496,
162 14582, 14686, 14812, 14888, 14894, 14907, 14908, 14909, 14920, 14952,
163 14964, 14981, 14982, 14985, 14991, 14994, 14996, 15000, 15003, 15006,
164 15007, 15014, 15020, 15022, 15023, 15036, 15054, 15055, 15062, 15078,
165 15084, 15085, 15086, 15100, 15160, 15214, 15221, 15232, 15234, 15283,
166 15285, 15287, 15304, 15305, 15307, 15309, 15327, 15330, 15335, 15336,
167 15337, 15339, 15342, 15346, 15359, 15361, 15366, 15380, 15381, 15394,
168 15395, 15405, 15406, 15409, 15416, 15418, 15419, 15423, 15424, 15426,
169 15429, 15431, 15432, 15441, 15442, 15448, 15465, 15480, 15485, 15488,
170 15490, 15492, 15493, 15497, 15506, 15529, 15536, 15553, 15577, 15583,
171 15618, 15627, 15631, 15654, 15655, 15666, 15667, 15674, 15711, 15755,
172 15759.
174 * CVE-2013-2207 Incorrectly granting access to another user's pseudo-terminal
175 has been fixed by disabling the use of pt_chown (Bugzilla #15755).
176 Distributions can re-enable building and using pt_chown via the new configure
177 option `--enable-pt_chown'. Enabling the use of pt_chown carries with it
178 considerable security risks and should only be used if the distribution
179 understands and accepts the risks.
181 * CVE-2013-0242 Buffer overrun in regexp matcher has been fixed (Bugzilla
182 #15078).
184 * CVE-2013-1914 Stack overflow in getaddrinfo with many results has been
185 fixed (Bugzilla #15330).
187 * Add support for calling C++11 thread_local object destructors on thread
188 and program exit. This needs compiler support for offloading C++11
189 destructor calls to glibc.
191 * Improved worst case performance of libm functions with double inputs and
192 output.
194 * Support for priority inherited mutexes in pthread condition variables on
195 non-x86 architectures.
197 * Port to Xilinx MicroBlaze contributed by David Holsgrove.
199 * Optimized string functions for AArch64. Implemented by Marcus Shawcroft.
201 * Optimized string functions for ARM. Implemented by Will Newton and
202 Richard Henderson.
204 * Optimized libm functions for SPARC. Implemented by David S. Miller.
206 * Support for building more of ARM glibc as Thumb-2 code. Implemented by
207 Richard Henderson.
209 * Support for building most of MIPS glibc as MIPS16 code. Implemented by
210 Chung-Lin Tang, Maciej W. Rozycki and Maxim Kuvyrkov.
212 * Added a benchmark framework to track performance of functions in glibc.
214 * New <math.h> macro named issignaling to check for a signaling NaN (sNaN).
215 It is based on draft TS 18661 and currently enabled as a GNU extension.
217 * On Linux, the clock function now uses the clock_gettime system call
218 for improved precision, rather than old times system call.
220 * Added support for version-3 tz format files. This is needed when using
221 the tz database release 2013e or later, and affects a few unusual cases --
222 currently only TZ='America/Godthab' for time stamps after 2037.
224 * Added new API functions pthread_getattr_default_np and
225 pthread_setattr_default_np to get and set the default pthread
226 attributes of a process.
228 * Added support for TSX lock elision for pthread mutexes on i386 and x86-64.
229 This may improve lock scaling of existing programs on TSX capable systems.
230 When the --enable-lock-elision=yes parameter is specified at configure
231 time lock elision will be enabled by default for all PTHREAD_MUTEX_DEFAULT
232 mutexes.
234 * Support added for AT_HWCAP2 (to coincide with Linux kernel 3.10
235 availability). Implemented by Ryan S. Arnold.
237 * Support added for POWER8 platform. Implemented by Ryan S. Arnold.
238 \f
239 Version 2.17
241 * The following bugs are resolved with this release:
243 1349, 3439, 3479, 3665, 5044, 5246, 5298, 5400, 6530, 6677, 6778, 6808,
244 9685, 9914, 10014, 10038, 10114, 10191, 10631, 10873, 11438, 11607, 11638,
245 11741, 12140, 13013, 13412, 13542, 13601, 13603, 13604, 13629, 13679,
246 13696, 13698, 13717, 13741, 13759, 13761, 13763, 13881, 13939, 13950,
247 13952, 13966, 14042, 14047, 14090, 14150, 14151, 14152, 14154, 14157,
248 14166, 14173, 14195, 14197, 14237, 14246, 14251, 14252, 14283, 14298,
249 14303, 14307, 14328, 14331, 14336, 14337, 14347, 14349, 14368, 14376,
250 14417, 14447, 14459, 14476, 14477, 14501, 14505, 14510, 14516, 14518,
251 14519, 14530, 14532, 14538, 14543, 14544, 14545, 14557, 14562, 14568,
252 14576, 14579, 14583, 14587, 14595, 14602, 14610, 14621, 14638, 14645,
253 14648, 14652, 14660, 14661, 14669, 14672, 14683, 14694, 14716, 14719,
254 14743, 14767, 14783, 14784, 14785, 14793, 14796, 14797, 14801, 14803,
255 14805, 14807, 14811, 14815, 14821, 14822, 14824, 14828, 14831, 14833,
256 14835, 14838, 14856, 14863, 14865, 14866, 14868, 14869, 14871, 14872,
257 14879, 14889, 14893, 14898, 14914.
259 * Optimization of memcpy for MIPS.
261 * CVE-2011-4609 svc_run() produces high cpu usage when accept fails with
262 EMFILE has been fixed (Bugzilla #14889).
264 * The add-on ports collection is now distributed in the "ports" subdirectory
265 of the main GNU C Library distribution, rather than separately.
267 * Port to ARM AArch64 contributed by Linaro.
269 * Support for STT_GNU_IFUNC symbols added for s390 and s390x.
270 Optimized versions of memcpy, memset, and memcmp added for System z10 and
271 zEnterprise z196.
272 Implemented by Andreas Krebbel.
274 * The new function secure_getenv allows secure access to the environment,
275 returning NULL if running in a SUID/SGID process. This function replaces
276 the internal function __secure_getenv.
278 * SystemTap static probes have been added into the dynamic linker.
279 Implemented by Gary Benson.
281 * Optimizations of string functions strstr, strcasestr and memmem.
282 Implemented by Maxim Kuvyrkov.
284 * The minimum Linux kernel version that this version of the GNU C Library
285 can be used with is 2.6.16.
287 * Optimizations of string functions memchr, wcschr, wcscpy, and wcsrchr for
288 powerpc POWER7. Implemented by Will Schmidt.
290 * New configure option --disable-nscd builds the C library such that it
291 never attempts to contact the Name Service Caching Daemon (nscd).
292 New configure option --disable-build-nscd avoids building nscd itself;
293 this is the default if --disable-nscd is used.
295 * Improved support for cross-compilation, including cross-testing and
296 bootstrap builds without a previously built glibc.
298 * Several testsuite tests are now able to test multiple IFUNC variants of an
299 interface, rather than just testing the one that would be chooen by
300 default.
302 * New configure options --with-bugurl and --with-pkgversion, for
303 distributors to use to embed their bug-reporting and package version
304 information in --help and --version output.
306 * The ttyname and ttyname_r functions on Linux now fall back to searching for
307 the tty file descriptor in /dev/pts or /dev if /proc is not available. This
308 allows creation of chroots without the procfs mounted on /proc.
310 * The `crypt' function now fails if passed salt bytes that violate the
311 specification for those values. On Linux, the `crypt' function will
312 consult /proc/sys/crypto/fips_enabled to determine if "FIPS mode" is
313 enabled, and fail on encrypted strings using the MD5 or DES algorithm
314 when the mode is enabled.
316 * The `clock_*' suite of functions (declared in <time.h>) is now available
317 directly in the main C library. Previously it was necessary to link with
318 -lrt to use these functions. This change has the effect that a
319 single-threaded program that uses a function such as `clock_gettime' (and
320 is not linked with -lrt) will no longer implicitly load the pthreads
321 library at runtime and so will not suffer the overheads associated with
322 multi-thread support in other code such as the C++ runtime library.
324 * New locales: ayc_PE, doi_IN, ia_FR, mni_IN, nhn_MX, niu_NU, niu_NZ,
325 sat_IN, and szl_PL.
326 \f
327 Version 2.16
329 * The following bugs are resolved with this release:
331 174, 208, 350, 369, 411, 706, 766, 887, 2074, 2541, 2547, 2548, 2550,
332 2551, 2552, 2553, 2554, 2562, 2563, 2565, 2566, 2570, 2576, 2636, 2678,
333 3335, 3440, 3748, 3768, 3866, 3868, 3906, 3976, 3992, 4026, 4108, 4596,
334 4822, 5077, 5461, 5805, 5993, 6471, 6486, 6578, 6649, 6730, 6770, 6794,
335 6884, 6890, 6894, 6895, 6907, 6911, 6959, 7064, 9739, 9902, 10110, 10135,
336 10140, 10153, 10210, 10254, 10346, 10375, 10545, 10716, 10846, 11174,
337 11261, 11322, 11365, 11451, 11494, 11521, 11677, 11837, 11959, 12047,
338 12097, 12193, 12194, 12297, 12298, 12301, 12340, 12354, 12416, 12495,
339 13058, 13223, 13361, 13525, 13526, 13527, 13528, 13529, 13530, 13531,
340 13532, 13533, 13547, 13551, 13552, 13553, 13555, 13556, 13559, 13563,
341 13566, 13576, 13579, 13583, 13592, 13594, 13613, 13618, 13637, 13656,
342 13658, 13673, 13691, 13695, 13704, 13705, 13706, 13718, 13726, 13738,
343 13739, 13743, 13750, 13758, 13760, 13761, 13775, 13786, 13787, 13792,
344 13806, 13824, 13840, 13841, 13844, 13846, 13848, 13851, 13852, 13854,
345 13871, 13872, 13873, 13879, 13882, 13883, 13884, 13885, 13886, 13892,
346 13895, 13908, 13910, 13911, 13912, 13913, 13914, 13915, 13916, 13917,
347 13918, 13919, 13920, 13921, 13922, 13923, 13924, 13926, 13927, 13928,
348 13938, 13941, 13942, 13954, 13955, 13956, 13963, 13967, 13968, 13970,
349 13973, 13979, 13983, 13986, 13996, 14012, 14027, 14033, 14034, 14036,
350 14040, 14043, 14044, 14048, 14049, 14050, 14053, 14055, 14059, 14064,
351 14075, 14080, 14083, 14103, 14104, 14109, 14112, 14117, 14122, 14123,
352 14134, 14153, 14183, 14188, 14199, 14210, 14218, 14229, 14241, 14273,
353 14277, 14278.
355 * Support for the x32 ABI on x86-64 added. The x32 target is selected by
356 configuring glibc with:
357 BUILD_CC='gcc' CC='gcc -mx32' CXX='g++ -mx32'
358 Visit <http://sites.google.com/site/x32abi/> for more x32 ABI info.
359 Implemented by H.J. Lu.
361 * ISO C11 support:
363 + define static_assert
365 + do not declare gets
367 + declare at_quick_exit and quick_exit also for ISO C11
369 + aligned_alloc. NB: The code is deliberately allows the size parameter
370 to not be a multiple of the alignment. This is a moronic requirement
371 in the standard but it is only a requirement on the caller, not the
372 implementation.
374 + timespec_get added
376 + uchar.h support added
378 + CMPLX, CMPLXF, CMPLXL added
380 Implemented by Ulrich Drepper.
382 * Support for the IA-64 has been moved to ports.
384 * Remove support for anything but ELF binary format
386 * Checking versions of poll, ppoll added.
387 Implemented by Ulrich Drepper.
389 * More generic and 64-bit performance optimizations to math functions.
390 Implemented by Ulrich Drepper.
392 * New configure option --enable-obsolete-rpc makes the deprecated RPC
393 headers and functions available at compile time as they were before
394 version 2.14. This option will be removed at some time in the future
395 after the TI-RPC library becomes fully sufficient for the needs of
396 existing applications.
398 * Compatibility code for Linux kernel versions before 2.4 has been removed.
399 Note that glibc is not expected to work with any Linux kernel version
400 before 2.6.
402 * New header <sys/auxv.h> and function getauxval allowing easy access to
403 the AT_* key-value pairs passed from the Linux kernel. The header also
404 defines the HWCAP_* bits associated with the AT_HWCAP key.
406 * New locales: mag_IN
408 * New configure option --enable-systemtap builds SystemTap static probes
409 into libc for setjmp and longjmp and into libpthread for various operations.
410 So far the setjmp/longjmp probes and some of the libpthread probes are
411 provided only for i*86 and x86_64.
412 Implemented by Roland McGrath and Rayson Ho.
414 * Optimized expf for x86-32 and x86-64. Implemented by Liubov Dmitrieva.
416 * More optimized functions for PowerPC. Implemented by Adhemerval Zanella
417 and Will Schmidt.
419 * More optimized functions for SPARC. Implemented by David S. Miller.
421 * Improved support for cross-compilation, especially bootstrap builds
422 without a previously built glibc.
424 * Ports for the TILE-Gx and TILEPro families of processors. Contributed by
425 Chris Metcalf from Tilera.
427 * Support for the old ARM ABI has been removed from ports. Only the EABI is
428 now supported for ARM processors.
430 * The hard-float variant of the ARM EABI now uses /lib/ld-linux-armhf.so.3
431 as the name of the dynamic linker, to distinguish it from the
432 /lib/ld-linux.so.3 dynamic linker used for the base EABI.
434 * Support for CRIS has been removed from ports.
436 * A new class of installed header has been documented for low-level
437 platform-specific functionality. PowerPC added the first instance with a
438 function to provide time base register access. Contributed by Tulio
439 Magno Quites Machado Filho.
441 * ix86 configurations now install header files that are consistent with
442 what x86-64 configurations install. These same header files can be used
443 for -m32, -m64, or -mx32 builds.
444 Contributed by H.J. Lu.
446 * Math library bug fixes. A thorough audit of all open math library bugs was
447 conducted by Joseph Myers. Significant progress was made on many math
448 library bugs resulting in more accurate exceptions and function results.
449 Many thanks to all those that contributed including Andreas Jaeger for his
450 patch review and work on the x87 trigonometric instruction issues.
452 * Timezone data is no longer installed. Timezone-related binaries and scripts
453 will continue to be installed. Users should obtain their timezone data from
454 their distribution provider or from the tzdata package at
455 <ftp://munnari.oz.au/pub/>.
456 \f
457 Version 2.15
459 * The following bugs are resolved with this release:
461 6779, 6783, 9696, 10103, 10709, 11589, 11929, 12403, 12786, 12840, 12847,
462 12868, 12852, 12874, 12885, 12892, 12906, 12907, 12922, 12935, 12962,
463 13007, 13021, 13061, 13062, 13067, 13068, 13085, 13088, 13090, 13092,
464 13096, 13114, 13118, 13123, 13134, 13138, 13147, 13150, 13166, 13179,
465 13185, 13189, 13192, 13268, 13276, 13282, 13291, 13305, 13328, 13335,
466 13337, 13344, 13358, 13367, 13413, 13416, 13423, 13439, 13446, 13472,
467 13484, 13506, 13515, 13523, 13524, 13538, 13540
469 * New program pldd to list loaded object of a process
470 Implemented by Ulrich Drepper.
472 * Add nss_db support back to glibc. No more dependency on Berkeley db
473 and support for initgroups lookups.
474 Implemented by Ulrich Drepper.
476 * Optimized strcpy, strncpy, stpcpy, stpncpy for SSE2 and SSSE3 on x86-32.
477 Contributed by HJ Lu.
479 * Improved strcpy, strncpy, stpcpy, stpncpy for SSE2 and SSSE3 on x86-64.
480 Contributed by HJ Lu.
482 * Optimized strcat, strncat on x86-64 and optimized wcscmp, wcslen, strnlen
483 on x86-32 and x86-64.
484 Contributed by Liubov Dmitrieva.
486 * Optimized strchr and strrchr for SSE on x86-32.
487 Contributed by Liubov Dmitrieva.
489 * Optimized memchr, memrchr, rawmemchr, memcmp, wmemcmp, wcschr, wcscpy
490 for x86-64 and x86-32.
491 Contributed by Liubov Dmitrieva.
493 * New interfaces: scandirat, scandirat64
494 Implemented by Ulrich Drepper.
496 * Checking versions of FD_SET, FD_CLR, and FD_ISSET added.
497 Implemented by Ulrich Drepper.
499 * nscd now also caches the netgroup database.
500 Implemented by Ulrich Drepper.
502 * Integrate libm with gcc's -ffinite-math-only option.
503 Implemented by Ulrich Drepper.
505 * Lots of generic, 64-bit, and x86-64-specific performance optimizations
506 to math functions. Implemented by Ulrich Drepper.
508 * Optimized strcasecmp and strncasecmp for AVX on x86-64.
509 Implemented by Ulrich Drepper.
511 * New Linux interfaces: process_vm_readv, process_vm_writev
513 * Optimized strcasecmp and strncasecmp for SSSE3 and SSE4.2 on x86-32.
514 Implemented by Ulrich Drepper.
516 * Optimized nearbyint and strcasecmp for PPC.
517 Implemented by Adhemerval Zanella.
519 * New locales: bho_IN, unm_US, es_CU, ta_LK
520 \f
521 Version 2.14
523 * The following bugs are resolved with this release:
525 386, 6420, 7101, 9730, 9732, 9809, 10138, 10149, 10157, 11099, 11257,
526 11258, 11487, 11532, 11558, 11578, 11634, 11653, 11668, 11697, 11724,
527 11781, 11799, 11820, 11837, 11857, 11869, 11892, 11895, 11901, 11945,
528 11947, 11952, 11987, 12052, 12083, 12158, 12178, 12200, 12346, 12350,
529 12393, 12420, 12432, 12445, 12449, 12453, 12454, 12460, 12469, 12489,
530 12509, 12510, 12511, 12518, 12527, 12541, 12545, 12551, 12582, 12583,
531 12587, 12597, 12601, 12611, 12625, 12626, 12631, 12650, 12653, 12655,
532 12660, 12671, 12681, 12684, 12685, 12711, 12713, 12714, 12717, 12723,
533 12724, 12734, 12738, 12746, 12766, 12775, 12777, 12782, 12788, 12792,
534 12795, 12811, 12813, 12814, 12841
536 * The RPC implementation in libc is obsoleted. Old programs keep working
537 but new programs cannot be linked with the routines in libc anymore.
538 Programs in need of RPC functionality must be linked against TI-RPC.
539 The TI-RPC implementation is IPv6 enabled and there are other benefits.
541 Visible changes of this change include (obviously) the inability to link
542 programs using RPC functions without referencing the TI-RPC library and the
543 removal of the RPC headers from the glibc headers.
544 Implemented by Ulrich Drepper.
546 * New Linux interfaces: clock_adjtime, name_to_handle_at, open_by_handle_at,
547 syncfs, setns, sendmmsg
549 * New locales: os_RU, bem_ZA, en_ZA, ff_SN, sw_KE, sw_TZ, lb_LU, wae_CH,
550 yue_HK, lij_IT, mhr_RU
552 * New encodings: CP770, CP771, CP772, CP773, CP774
554 * New program sotruss to trace calls through PLTs
555 Implemented by Ulrich Drepper.
557 * The malloc hook implementation is marked deprecated and will be removed
558 from the default implementation in the next version. The design never
559 worked ever since the introduction of threads. Even programs which do
560 not create threads themselves can use multiple threads created internally.
561 \f
562 Version 2.13
564 * The following bugs are resolved with this release:
566 3268, 6812, 7066, 10085, 10484, 10563, 10851, 11149, 11155, 11577, 11611,
567 11640, 11655, 11701, 11840, 11856, 11883, 11903, 11904, 11968, 11979,
568 12005, 12037, 12067, 12077, 12078, 12092, 12093, 12107, 12108, 12113,
569 12140, 12159, 12167, 12191, 12194, 12201, 12204, 12205, 12207, 12348,
570 12378, 12394, 12397
572 * New Linux interfaces: prlimit, prlimit64, fanotify_init, fanotify_mark
574 * POWER7 optimizations: memset, memcmp, strncmp
576 * New optimized string functions for x86-64: strnlen (SSE2),
577 strcasecmp (SSE2, SSSE3, SSE4.2), strncasecmp (SSE2, SSSE3, SSE4.2)
578 Implemented by Ulrich Drepper.
579 \f
580 Version 2.12
582 * The following bugs are resolved with this release:
584 3662, 4457, 5553, 10162, 10401, 10414, 10554, 10824, 10864, 10915,
585 10918, 10936, 10939, 10958, 10968, 10969, 10972, 10992, 11000, 11001,
586 11007, 11010, 11027, 11039, 11040, 11041, 11043, 11046, 11056, 11070,
587 11093, 11115, 11125, 11126, 11127, 11134, 11141, 11149, 11183, 11184,
588 11185, 11186, 11187, 11188, 11189, 11190, 11191, 11192, 11193, 11194,
589 11200, 11230, 11235, 11242, 11254, 11258, 11271, 11272, 11276, 11279,
590 11287, 11292, 11319, 11332, 11333, 11387, 11389, 11390, 11394, 11397,
591 11410, 11438, 11449, 11470, 11471, 11520, 11537, 11538, 11571
593 * New interfaces: pthread_getname_np, pthread_setname_np
595 * New Linux interface: recvmmsg
597 * STT_GNU_IFUNC implemented for Sparc by David Miller.
599 * The dynamic linker now recognizes supported ABI versions from the
600 EI_ABIVERSION field in the ELF header.
601 Implemented by Ulrich Drepper.
603 * New NIS mode selector ADJUNCT_AS_SHADOW. The passwd.adjunct.byname table
604 will not be used to fill in password fields in the passwd.byname replies.
605 Instead it is used to synthesize the shadow.byname table, should it be
606 missing. This is a useful mode in some installations involving Solaris.
607 Implemented by Ulrich Drepper.
609 * New locales: kok_IN, sq_MK, cv_RU
610 \f
611 Version 2.11
613 * The following bugs are resolved with this release:
615 3270, 7094, 9924, 9986, 10011, 10085, 10107, 10159, 10162, 10166, 10183,
616 10195, 10196, 10200, 10203, 10207, 10211, 10213, 10217, 10221, 10229,
617 10262, 10286, 10312, 10315, 10319, 10349, 10360, 10391, 10402, 10416,
618 10418, 10422, 10425, 10446, 10448, 10452, 10540, 10553, 10560, 10564,
619 10609, 10643, 10692, 10713, 10717, 10730, 10731, 10742, 10780, 10784,
620 10789, 10817, 10823, 10840, 10847
622 * New interfaces: execvpe, pthread_sigqueue, mkstemps, mkstemps64, mkostemps,
623 mkostemps64
624 Implemented by Ulrich Drepper.
626 * Checking version of longjmp added that fails if an uninitialized stack
627 frame would be created. Implemented by Ulrich Drepper.
629 * STT_GNU_IFUNC is now supported in static executables.
630 Implemented by H.J. Lu.
632 * STT_GNU_IFUNC implemented for PPC by Alan Modra.
634 * New optimized string functions for x86-64: strstr, strcasestr, memcmp,
635 strcspn, strpbrk, strspn, strcpy, stpcpy, strncpy, strcmp (SSE2, SSE4.2),
636 strncmp (SSE2, SSE4.2), strchr (SSE4.2), strrchr (SSE4.2).
637 Contributed by H.J. Lu.
639 strlen, rawmemchr, strcmp (SSSE3), strncmp (SSSE3).
640 Implemented by Ulrich Drepper.
642 * New optimized string functions for x86: strlen, strcspn, strspn, strpbrk,
643 strstr, strcasestr.
644 Contributed by H.J. Lu.
646 * Support for fma instruction in AVX on x86-64.
647 Implemented by H.J. Lu and Ulrich Drepper.
649 * AVX support in x86-64 auditing support in ld.so.
650 Implemented by H.J. Lu.
652 * STB_GNU_UNIQUE support added.
653 Implemented by Ulrich Drepper.
655 * Implement second fallback mode for optimized DNS lookup for even more
656 broken environments. If two requests from the same port are not
657 handled correctly close the socket and open a new one before sending
658 the second request. The 'single-request-reopen' option in /etc/resolv.conf
659 can be used to select this mode right away, instead of rediscovering the
660 necessity is every process again.
661 Implemented by Ulrich Drepper.
663 * New resolver flag RES_USE_DNSSEC to enable use of verified lookup.
664 Implemented by Adam Tkac.
666 * Optimized iconv conversions for S390x.
667 Implemented by Andreas Krebbel.
669 * Using condvars with PI mutexes is now more efficient due to kernel
670 support for requeueing to PI futexes. NPTL support added for x86-64.
671 Implemented by Ulrich Drepper.
673 * New locales: ps_AF, my_MM
674 \f
675 Version 2.10
677 * The following bugs are resolved with this release:
679 697, 5381, 5807, 6411, 6545, 7040, 7058, 7067, 7080, 7083, 7095, 7098,
680 9677, 9694, 9697, 9701, 9704, 9705, 9706, 9720, 9726, 9730, 9733, 9736,
681 9741, 9750, 9753, 9759, 9781, 9791, 9793, 9823, 9833, 9844, 9880, 9881,
682 9891, 9893, 9895, 9913, 9916, 9920, 9948, 9955, 9957, 9963, 9985, 10052,
683 10069, 10086, 10087, 10090, 10092, 10093, 10100, 10118, 10128
685 * New interfaces: preadv, preadv64, pwritev, pwritev64, malloc_info
686 Implemented by Ulrich Drepper.
688 * New Linux interfaces: accept4, fallocate, fallocate64.
689 Implemented by Ulrich Drepper.
691 * Correct declarations of string function when used in C++ code. This
692 could lead to compile errors for invalid C++ code.
694 * XPG7/POSIX 2008 compilation environment. Many GNU-specific functions are
695 now in POSIX.
697 * New POSIX 2008 interface: psiginfo
698 Implemented by Ulrich Drepper.
700 * New ISO C++1x interfaces: quick_exit, at_quick_exit
701 Implemented by Ulrich Drepper.
703 * Support for selecting between multiple function definitions at runtime
704 using STT_GNU_IFUNC symbols. Implemented by Ulrich Drepper.
706 * The libcrypt library can now use the hash function implementations in
707 NSS. Implemented by Ulrich Drepper.
709 * The malloc implementation can be compiled to be less memory efficient
710 but higher performing in multi-threaded programs.
711 Implemented by Ulrich Drepper.
713 * New locales: nan_TW@latin, ks_IN
715 * Faster strlen, strchr, strchrnul, strrchr, memchr, and rawmemchr for x86-64.
716 Implemented by Ulrich Drepper.
718 * Extended printf hook support. It is possible to use user-defined types
719 and extend existing format specifiers.
720 Implemented by Ulrich Drepper.
722 * Handling for group shadow files has been added.
723 Implemented by Ulrich Drepper.
725 * DNS IPv4-IPv6 parallel lookup now deals better with broken DNS
726 servers (the case, e.g., for some people using the built-in DNS
727 server in ADSL modems/routers). There is a once-per-process timeout
728 in case of a broken server. To avoid it, users can run nscd or put
729 'options single-request' in /etc/resolv.conf.
730 Implemented by Ulrich Drepper.
731 \f
732 Version 2.9
734 * The following bugs are resolved with this release:
736 3406, 5209, 5210, 5381, 5794, 5814, 5911, 6428, 6438, 6442, 6447, 6461,
737 6472, 6505, 6544, 6589, 6612, 6634, 6653, 6654, 6657, 6698, 6712, 6713,
738 6719, 6723, 6724, 6740, 6763, 6771, 6790, 6791, 6817, 6824, 6839, 6843,
739 6845, 6856, 6857, 6860, 6867, 6875, 6919, 6920, 6942, 6947, 6955, 6966,
740 6968, 6974, 6980, 6995, 7008, 7009, 7029
742 * Unified lookup for getaddrinfo: IPv4 and IPv6 addresses are now looked
743 up at the same time. Implemented by Ulrich Drepper.
745 * TLS descriptors for LD and GD on x86 and x86-64.
746 Implemented by Alexandre Oliva.
748 * getaddrinfo now handles DCCP and UDPlite.
749 Implemented by Ulrich Drepper.
751 * New fixed-size conversion macros: htobe16, htole16, be16toh, le16toh,
752 htobe32, htole32, be32toh, le32toh, htobe64, htole64, be64toh, le64toh.
753 Implemented by Ulrich Drepper.
755 * New implementation of memmem, strstr, and strcasestr which is O(n).
756 Implemented by Eric Blake.
758 * New Linux interfaces: inotify_init1, dup3, epoll_create1, pipe2
760 * Implement "e" option for popen to open file descriptor with the
761 close-on-exec flag set. Implemented by Ulrich Drepper.
763 * Implement "b" mode for fmemopen. In this mode writes writes don't
764 implicitly add a NUL byte and seeks from the end of the buffer really
765 use the buffer end, not the string length as the basis.
766 Implemented by Ulrich Drepper.
768 * Many functions, exported and internal, now atomically set the close-on-exec
769 flag when run on a sufficiently new kernel. Implemented by Ulrich Drepper.
771 * Sorting rules for some Indian languages (Kannada, Gurumukhi, Telugu,
772 Sinhala)
773 Implemented by Pravin Satpute.
775 * New locales: sd_IN, sd_IN@devanagari, ks_IN@devanagari, ht_HT, en_AG, nl_AW.
776 \f
777 Version 2.8
779 * The following bugs are resolved with this release:
781 2549, 3112, 4314, 4407, 4997, 5012, 5040, 5112, 5204, 5208, 5209, 5220,
782 5222, 5224, 5225, 5237, 5238, 5240, 5245, 5277, 5346, 5375, 5378, 5382,
783 5424, 5427, 5428, 5435, 5436, 5439, 5441, 5442, 5443, 5451, 5452, 5454,
784 5455, 5463, 5464, 5465, 5475, 5477, 5478, 5520, 5541, 5545, 5553, 5600,
785 5602, 5607, 5614, 5627, 5628, 5736, 5737, 5741, 5753, 5760, 5762, 5768,
786 5774, 5777, 5778, 5779, 5786, 5790, 5818, 5854, 5857, 5903, 5939, 5979,
787 5983, 5995, 5998, 6004, 6007, 6020, 6021, 6024, 6040, 6042
789 * New locales: bo_CN, bo_IN, shs_CA.
791 * New encoding: HP-ROMAN9, HP-GREEK8, HP-THAI8, HP-TURKISH8.
793 * Sorting rules for some Indian languages (Devanagari and Gujarati).
794 Implemented by Pravin Satpute.
796 * IPV6 addresses in /etc/resolv.conf can now have a scope ID
798 * nscd caches now all timeouts for DNS entries
799 Implemented by Ulrich Drepper.
801 * nscd is more efficient and wakes up less often.
802 Implemented by Ulrich Drepper.
804 * More checking functions: asprintf, dprintf, obstack_printf, vasprintf,
805 vdprintf, and obstack_vprintf.
806 Implemented by Jakub Jelinek.
808 * Faster memset for x86-64.
809 Implemented by Harsha Jagasia and H.J. Lu.
811 * Faster memcpy on x86.
812 Implemented by Ulrich Drepper.
814 * ARG_MAX is not anymore constant on Linux. Use sysconf(_SC_ARG_MAX).
815 Implemented by Ulrich Drepper.
817 * Faster sqrt and sqrtf implemention for some PPC variants.
818 Implemented by Steven Munroe.
819 \f
820 Version 2.7
822 * The following bugs are resolved with this release:
824 4125, 4126, 4178, 4359, 4407, 4512, 4514, 4525, 4554, 4556, 4557, 4566,
825 4582, 4586, 4588, 4599, 4610, 4647, 4702, 4705, 4726, 4745, 4772, 4773,
826 4775, 4776, 4792, 4813, 4814, 4816, 4833, 4858, 4860, 4896, 4905, 4925,
827 4936, 4937, 4938, 4941, 4946, 4963, 4972, 5010, 5028, 5043, 5058, 5063,
828 5071, 5103, 5104, 5112, 5113, 5184, 5186
830 * More checking functions: fread, fread_unlocked, open*, mq_open.
831 Implemented by Jakub Jelinek and Ulrich Drepper.
833 * Extend fortification to C++. Implemented by Jakub Jelinek.
835 * Implement 'm' modifier for scanf. Add stricter C99/SUS compliance
836 by not recognizing 'a' as a modifier when those specs are requested.
837 Implemented by Jakub Jelinek.
839 * PPC optimizations to math and string functions.
840 Implemented by Steven Munroe.
842 * New interfaces: mkostemp, mkostemp64. Like mkstemp* but allow additional
843 options to be passed. Implemented by Ulrich Drepper.
845 * More CPU set manipulation functions. Implemented by Ulrich Drepper.
847 * New Linux interfaces: signalfd, eventfd, eventfd_read, and eventfd_write.
848 Implemented by Ulrich Drepper.
850 * Handle private futexes in the NPTL implementation.
851 Implemented by Jakub Jelinek and Ulrich Drepper.
853 * Add support for O_CLOEXEC. Implement in Hurd. Use throughout libc.
854 Implemented by Roland McGrath and Ulrich Drepper.
856 * Linux/x86-64 vDSO support. Implemented by Ulrich Drepper.
858 * SHA-256 and SHA-512 based password encryption.
859 Implemented by Ulrich Drepper.
861 * New locales: ber_DZ, ber_MA, en_NG, fil_PH, fur_IT, fy_DE, ha_NG, ig_NG,
862 ik_CA, iu_CA, li_BE, li_NL, nds_DE, nds_NL, pap_AN, sc_IT, tk_TM, ug_CN,
863 yo_NG.
865 + New iconv modules: MAC-CENTRALEUROPE, ISO-8859-9E, KOI8-RU.
866 Implemented by Ulrich Drepper.
867 \f
868 Version 2.6
870 * The following bugs are resolved with this release:
872 3156, 3213, 3285, 3291, 3306, 3313, 3320, 3322, 3325, 3326, 3334, 3348,
873 3352, 3363, 3369, 3426, 3427, 3429, 3451, 3458, 3465, 3480, 3483, 3493,
874 3514, 3515, 3559, 3632, 3664, 3673, 3674, 3745, 3747, 3818, 3840, 3842,
875 3851, 3855, 3884, 3885, 3902, 3905, 3919, 3944, 3954, 3955, 3957, 3991,
876 3995, 3996, 4024, 4040, 4069, 4070, 4074, 4076, 4096, 4101, 4102, 4114,
877 4130, 4131, 4181, 4276, 4306, 4342, 4344, 4349, 4364, 4368, 4381, 4392,
878 4403, 4405, 4406, 4411, 4438, 4439, 4455, 4456, 4465, 4512, 4514, 4586,
879 4702, 4858
881 * New Linux interfaces: epoll_pwait, sched_getcpu.
883 * New generic interfaces: strerror_l.
885 * nscd can now cache the services database. Implemented by Ulrich Drepper.
886 \f
887 Version 2.5
889 * The following bugs are resolved with this release:
891 39, 68, 192, 352, 388, 531, 935, 1006, 1201, 1203, 1386, 1782, 1783, 1784,
892 1785, 1786, 1787, 1951, 1974, 1996, 2072, 2098, 2125, 2134, 2158, 2182,
893 2349, 2376, 2386, 2389, 2415, 2418, 2420, 2423, 2450, 2451, 2466, 2472,
894 2473, 2477, 2498, 2499, 2501, 2502, 2505, 2507, 2508, 2509, 2517, 2526,
895 2569, 2571, 2592, 2611, 2625, 2632, 2644, 2662, 2680, 2683, 2684, 2693,
896 2695, 2703, 2734, 2751, 2764, 2766, 2775, 2792, 2821, 2823, 2832, 2841,
897 2843, 2883, 2892, 2908, 2914, 2926, 2961, 2978, 2980, 2987, 2997, 2998,
898 3013, 3018, 3034, 3040, 3044, 3123, 3124, 3137, 3138, 3143, 3155, 3189,
899 3225, 3251, 3252, 3253, 3273
901 * For Linux, the sorting of addresses returned by getaddrinfo now also
902 handles rules 3, 4, and 7 from RFC 3484. I.e., all rules are handled.
903 Implemented by Ulrich Drepper.
905 * Allow system admin to configure getaddrinfo with the /etc/gai.conf file.
906 Implemented by Ulrich Drepper.
908 * New Linux interfaces: splice, tee, sync_file_range, vmsplice.
910 * New iconv module for MIK. Contributed by Alexander Shopov.
912 * For sites with broken group and/or passwd database, the auto-propagate
913 option of nscd can prevent creating ID lookup entries from the results
914 of a name lookup and vice versa. This usually is no problem but some
915 site might have problems with the default behavior.
916 Implemented by Ulrich Drepper.
918 * Iterating over entire database in NIS can be slow. With the
919 SETENT_BATCH_READ option in /etc/default/nss a system admin can decide
920 to trade time for memory. The entire database will be read at once.
921 Implemented by Ulrich Drepper.
923 * The interfaces introduced in RFC 3542 have been implemented by
924 Ulrich Drepper.
926 * Support for the new ELF hash table format was added by Ulrich Drepper.
928 * Support for priority inheritance mutexes added by Jakub Jelinek and
929 Ulrich Drepper.
931 * Support for priority protected mutexes added by Jakub Jelinek.
933 * New locales: nr_ZA, pa_PK, ca_AD, ca_FR, ca_IT, el_CY, tr_CY, as_IN,
934 or_IN, csb_PL, fy_NL, sr_ME.
935 \f
936 Version 2.4
938 * More overflow detection functions.
940 * New iconv converters for IBM1025, IBM1122, IBM1137, IBM1153,
941 IBM1154, IBM1155, IBM1156, IBM1157, and IBM1158 contributed by Jiro Sekiba.
943 More converters for IBM803, IBM901, IBM902, IBM921, IBM1008, IBM1097,
944 IBM1112, IBM1123, IBM1130, IBM1140, IBM1141, IBM1142, IBM1143, IBM1144,
945 IBM1145, IBM1146, IBM1147, IBM1148, IBM1149, IBM1166, IBM1167, IBM4517,
946 IBM4899, IBM4909, IBM4971, IBM5347, IBM9030, IBM9066, IBM9448, IBM12712,
947 IBM16804, IBM1364, IBM1371, IBM1388, IBM1390, and IBM1399 contributed
948 by Masahide Washizawa.
950 * It is now possible to install audit libraries for the dynamic linker using
951 LD_AUDIT. Implemented by Ulrich Drepper.
953 * The LinuxThreads add-on, providing pthreads on Linux 2.4 kernels, is no
954 longer supported. The new NPTL implementation requires Linux 2.6 kernels.
955 For a libc and libpthread that works well on Linux 2.4 kernels, we
956 recommend using the stable 2.3 branch.
958 * The new function open_wmemstream acts like open_memstream,
959 but uses a wchar_t wide character buffer.
961 * The new function ppoll is an improved version of poll, similar to pselect.
963 * New interfaces: fdopendir, openat, fstatat, fchmodat, fchownat,
964 futimesat, faccessat, mkdirat, mkfifoat, mknodat,
965 renameat, unlinkat, linkat, symlinkat, readlinkat.
967 * New Linux kernel system calls: unshare,
968 inotify_init, inotify_add_watch, inotify_rm_watch.
970 * The euidaccess function is now also known by the alias eaccess,
971 for compatibility with some other systems.
973 * Timezone data updated to 2006b version.
974 \f
975 Version 2.3.6
977 * The following bugs are resolved with this release:
979 38, 253, 549, 622, 653, 721, 758, 851, 877, 915, 934, 955, 961,
980 1016, 1037, 1076, 1079, 1080, 1081, 1082, 1083, 1084, 1085, 1086,
981 1087, 1088, 1090, 1091, 1092, 1093, 1094, 1095, 1096, 1097, 1098,
982 1099, 1100, 1101, 1102, 1103, 1104, 1105, 1106, 1107, 1108, 1109,
983 1110, 1111, 1112, 1113, 1125, 1137, 1138, 1249, 1250, 1251, 1252,
984 1253, 1254, 1350, 1358, 1394, 1438, 1498, 1534
986 Visit <http://sources.redhat.com/bugzilla/> for the details of each bug.
988 * As of this release, GCC 4 can be used to compile the C Library.
990 * Timezone data updated to 2005m version.
991 \f
992 Version 2.3.5
994 * The following bugs are resolved with this release:
996 284, 592, 602, 626, 633, 640, 650, 661, 671, 681, 693, 700, 710, 719,
997 722, 723, 725, 726, 727, 728, 729, 730, 731, 732, 733, 734, 735, 736,
998 737, 738, 739, 740, 741, 742, 743, 744, 745, 765, 767, 768, 769, 776,
999 777, 787, 821, 822, 823, 825
1001 Visit <http://sources.redhat.com/bugzilla/> for the details of each bug.
1002 \f
1003 Version 2.3.4
1005 * Support for RFC 3678. Real implementations exist only for Linux so far.
1006 Implemented by Ulrich Drepper.
1008 * nscd can now cache entries persistently. Expiring entries are reloaded.
1009 For speedups the cache can be shared in memory with client processes.
1010 Implemented by Ulrich Drepper.
1012 * nscd can now perform SELinux checks.
1013 Implemented by Matthew Rickard <mjricka@epoch.ncsc.mil>.
1015 * getaddrinfo queries are now cached. Canonical name lookup is performed
1016 efficiently.
1017 Implemented by Ulrich Drepper.
1019 * The nothrow function attribute is used when headers are used by gcc when
1020 compiling C code. This can avoid significant amounts of exception
1021 handling data.
1023 * The malloc functions perform more error checking and are stricter when
1024 it comes to reacting on errors. The default action is to terminate
1025 the process after showing an error message. Implemented by Ulrich Drepper.
1027 * Reverse lookups of IPv6 addresses does not use bit string or .ip6.int
1028 lookups anymore unless explicitly requested. Implemented by Ulrich Drepper.
1030 * Namespaces in ld.so are implemented. DSOs can be loaded in separate
1031 namespaces using the new function dlmopen(). This feature is of course,
1032 like most other dynamic loading functionality, not available in statically
1033 linked applications. Implemented by Ulrich Drepper.
1035 * Low-overhead boundary checking variants of string and some stdio functions
1036 were added. These are to be used in conjunction with a gcc patch by
1037 Jakub Jelinek which adds calls to these functions if possible.
1038 Implemented by Jakub Jelinek and Ulrich Drepper.
1040 * Old code for several operating systems and machine architectures that
1041 have not been in working condition in a long time have been removed from
1042 the main source tree maintained by the GNU C Library's maintainers.
1043 These files are now reside in the separate `ports' source module
1044 that is usable as an add-on when building the library.
1045 \f
1046 Version 2.3.3
1048 * New functions `dladdr1' and `dlinfo' in <dlfcn.h> provide more ways to
1049 interrogate the dynamic linker, compatible with the Solaris interface.
1051 * ELF thread-local storage support (TLS) now works on PowerPC and PowerPC64;
1052 implemented by Paul Mackerras, Steven Munroe, and Roland McGrath.
1054 * getifaddrs now uses the netlink interface on Linux to get its information.
1055 Implemented by Thorsten Kukuk.
1057 * getaddrinfo now implements AI_V4MAPPED, AI_ALL, and AI_ADDRCONF.
1058 Implemented by Ulrich Drepper.
1060 * support for non-executable stacks on x86 has been added. Changes mostly
1061 by Roland McGrath.
1063 * regex is now much faster for multibyte locales. Changes by Jakub Jelinek
1064 and Ulrich Drepper.
1066 * getaddrinfo now performs destination address selection according to
1067 RFC 3484.
1068 \f
1069 Version 2.3.2
1071 * Thread-safe interfaces for many functions that access locale data
1072 were added in version 2.3, but these features were omitted from NEWS.
1073 Many functions have variants with an `_l' suffix that take a `locale_t'
1074 object as a parameter rather than consulting the current locale.
1075 The new functions `newlocale', `duplocale', and `freelocale' in <locale.h>
1076 create and maintain `locale_t' objects. Additionally, the new function
1077 `uselocale' sets "the current locale" (as used by functions not so
1078 parameterized) set for an individual thread. These features were added
1079 in version 2.3, implemented by Ulrich Drepper and Roland McGrath.
1081 * The functions getresuid, getresgid, setresuid, and setresgid, which
1082 have long been available on Linux, are now declared in <unistd.h>
1083 and are now also available on the Hurd.
1085 * ELF thread-local storage support (TLS) now works on x86-64.
1087 * The new dynamic string token $LIB is expanded in shared library names.
1088 This normally expands to lib, but on some 64-bit platforms to lib64 instead.
1090 * Aldy Hernandez contributed complete software floating point support for
1091 PowerPC machines with no FPU.
1093 * fexecve is implemented on Linux.
1095 * The `btowc' function should work at least twice as fast due to
1096 specialized callbacks in the iconv modules. Implemented by Bruno Haible.
1098 * With approriate thread add-ons cancelable functions are now implemented
1099 in libc.so as well. No need to call the function in libpthread. This
1100 change allowed to finally disable the incorrect and expensive handling
1101 of weak definition in ld.so.
1103 * Yet more PLT entries in libc.so have been removed. We finally arrived
1104 at the bare minimum. Startup times improved appropriately.
1106 * Support for the new Linux/x86 system call interface was added. The
1107 AT_SYSINFO auxiliary vector entry is recognized and handled.
1108 \f
1109 Version 2.3
1111 * Masahide Washizawa contributed iconv modules for IBM1163 and IBM1164
1112 charsets.
1114 * iconv (the program and the interface) now accepts empty names (excluding
1115 options like //TRANSLIT) to mean "use charset of current locale".
1117 * localedef can now transliterate characters in strings which are not in
1118 the provided charmap. The information from the input locale is used.
1120 * Prelinking support was added for ELF targets. This requires additional
1121 tools and recent versions of the GNU binutils. Contributed by Jakub Jelinek.
1123 * Read-only stdio streams now use mmap to speed up operation by eliminating
1124 copying and buffer underflows. To use add 'm' to the mode string of
1125 the fopen/fdopen/freopen call. Implemented by Ulrich Drepper.
1127 * The malloc functions were completely rewritten by Wolfram Gloger based
1128 on Doug Lea's malloc-2.7.0.c.
1130 * Isamu Hasegawa contributed a completely new and POSIX-conformant
1131 implementation of regex.
1133 * Bruno Haible upgraded the iconv and locale implementation to support
1134 Unicode 3.2.
1136 * Contents of the LC_* and LANG environment variables in the CEN style are
1137 not recognized anymore. It never was used. Change by Ulrich Drepper.
1139 * The runtime (ld.so, libc, libpthread for Linux) now can handle the ELF
1140 thread-local storage (TLS) ABI on some platforms.
1141 Changes by Ulrich Drepper. SH support by Kaz Kojima.
1143 * Bruno Haible contributed iconv converters for ISO-2022-JP-3, SHIFT JIS-X0213,
1144 EUC-JISX0213, and TSCII.
1146 * New header <ifaddrs.h> with functions `getifaddrs' and `freeifaddrs':
1147 BSD-compatible interface for getting all network interface addresses.
1148 Implementation for IPv4 by Roland McGrath.
1150 * Loading of locale data is faster due to the introduction of a locale
1151 archive. Implemented by Roland McGrath and Ulrich Drepper.
1153 * Startup times are significantly reduced by not using exported functions
1154 inside the library itself. Changes by Jakub Jelinek, Roland McGrath,
1155 and Ulrich Drepper.
1157 * Steven Munroe contributed a port to PowerPC64/Linux.
1158 \f
1159 Version 2.2.6
1161 * The Hurd now uses the GNU libio implementation of stdio rather than the
1162 old GNU stdio implementation, and uses a new ABI (libc.so.0.3).
1164 * The Hurd on x86 now has the `ioperm' function and <sys/io.h> header file
1165 with the same behavior as the Linux system call of the same name.
1166 \f
1167 Version 2.2.5
1169 * Stephen Moshier implemented log2, log10, powl and cbrtl for the
1170 128-bit long double format.
1172 * Masahide Washizawa contributed iconv modules for IBM1132, IBM1133, IBM1160,
1173 IBM1161, and IBM1162 charsets.
1175 * Andreas Jaeger contributed a port to x86-64/Linux.
1177 * Peter Bruin contributed a port to PowerPC/Hurd.
1179 * libc functions using I/O streams now can handle wide-oriented streams
1180 as well.
1182 * optimizations in the dynamic linker. Binaries created by recent binutils
1183 versions start up quicker due to reduced time spent on relocations.
1185 * Support for use of gcc3 added by Jakub Jelinek and HJ Lu.
1186 \f
1187 Version 2.2.4
1189 * Stephen Moshier implemented cosh, expm1, log1p, acos, sinh, tanh,
1190 asinh, atanh, j0 for the 128-bit long double format.
1192 * Bruno Haible updated all the code handling Unicode in some form to
1193 support Unicode 3.1.
1195 * Speed of regex for single-byte locales is back to previous levels.
1196 Patch by Isamu Hasegawa.
1198 * Alpha, SPARC, and IA-64 now also using floating stacks.
1200 * Startup time of internationalized applications greatly improved through
1201 iconv cache. Use iconvconfig to generate the cache file.
1202 Contributed by Ulrich Drepper.
1204 * The IA-64 specific part of ld.so was rewritten to eliminate some pretty
1205 severe performance problems. Patch by David Mosberger.
1207 * The Hurd port got a lot more functionality like AIO, various stdio
1208 extensions, etc. Mainly done by Roland McGrath.
1210 * mtrace can now lookup symbols in shared libraries.
1211 \f
1212 Version 2.2.3
1214 * Intel's IA-64 math library is largely integrated. It provides fast and
1215 accurate implementatations for most basic and standard math functions
1216 in float, double, and long double format.
1218 * Stephen Moshier implemented j0, j1, jn, y0, y1, yn, lgamma, erf, erfc,
1219 and asin for the 96-bit long double format and asin, log, tan for the
1220 128-bit long double format.
1222 * The beginning of a last-bit accurate math library by IBM Haifa were added.
1223 The basic double functions exist today. Contributed by Abraham Ziv
1224 <ziv@il.ibm.com>, Moshe Olshansky <olshansk@il.ibm.com>, Ealan Henis
1225 <ealan@il.ibm.com>, and Anna Reitman <reitman@il.ibm.com>.
1227 * An asynchronous name lookup library was added. The interface is designed
1228 after POSIX AIO. The proposal was circulated beforehand to get comments.
1229 No negative ones came in. Implemented by Ulrich Drepper.
1231 * Port to S390/64bit contributed by Martin Schwidefsky
1232 <schwidefsky@de.ibm.com>.
1234 * David Mosberger <davidm@hpl.hp.com> implemented the setcontext family
1235 of functions for Linux/IA-64.
1237 * The RPC code is now thread safe. Threads can now use the same service
1238 of different services at the same time. Patch by Eric Norum
1239 <eric.norum@usask.ca> with some help by Ulrich Drepper.
1241 * Martin Schwidefsky <schwidefsky@de.ibm.com> implemented the setcontext
1242 family of functions for Linux/S390.
1244 * Ulrich Drepper <drepper@redhat.com> implemented the setcontext family
1245 of functions for Linux/x86.
1247 * Port to Linux/CRIS contributed by Axis Communications.
1248 \f
1249 Version 2.2.2
1251 * Lots of headers were cleaned up. Using the tool in the conform/ subdir
1252 we can now check for namespace violations and missing declarations. The
1253 result is that almost all headers are now Unix-compliant (as defined in
1254 the upcoming XPG6). The negative side is that some programs might need
1255 corrections, too, if they depend on the incorrect form of the headers in
1256 previous versions which defined too many symbols and included too many
1257 other headers.
1259 * regex now handles multibyte character sets correctly.
1260 Contributed by Isamu Hasegawa <isamu@yamato.ibm.com>.
1262 * iconv (the program) does now conform to the upcoming XPG6 and handles
1263 charmaps. Instead of the charset names the path of charmaps can be
1264 provided and the conversion happens based on this data.
1265 Contributed by Ulrich Drepper.
1267 * The locale program now provides detailed information about the installed
1268 locales. While
1270 locale -a
1272 only lists the names of the supported locales
1274 locale -a --verbose
1276 provides details such as country, language, and codeset name.
1277 Contributed by Ulrich Drepper.
1278 \f
1279 Version 2.2.1
1281 * The gencat program now parses the input file according to the charset
1282 selected by the LC_CTYPE category. This is important for stateful
1283 character sets. To make generating catalogs easier there is a way
1284 to overwrite the charset selected by the locale: before the first
1285 message or $ quote line the catalog can contain a line like
1287 $ codeset=ISO-8859-2
1289 to select the charset (ISO-8859-2 in this case).
1291 Implemented by Shinya Hanataka and Ulrich Drepper.
1293 * New codeset conversion modules: IBM-922 (Estonia PC codeset),
1294 IBM-1124 (Ukraine PC codeset), IBM-1129 (Vietnamese PC codeset).
1295 Contributed by Masahide Washizawa <washi@jp.ibm.com>.
1297 * Optimized string functions for Alpha ev6 and ev67 by Richard Henderson
1298 <rth@redhat.com> and Rick Gorton <rick.gorton@alpha-processor.com>.
1300 * The LANGUAGE environment variable is now ignored unless the locale is
1301 changed from the default "C" locale.
1303 * The usual bug fixes.
1304 \f
1305 Version 2.2
1307 * Greg McGary added runtime support for bounds checking using gcc's
1308 new -fbounded-pointers option. ix86 target is complete. PowerPC
1309 is in progress.
1311 * Thorsten Kukuk added secure mode support to nscd.
1313 * The Berkeley db libraries have been removed.
1315 Related, the nss_db module is now in a separate package since it
1316 obviously requires a database library being available.
1318 * Wide character I/O streams implemented by Ulrich Drepper.
1320 * Functions from the extended socket API added by Ulrich Drepper.
1322 * Functions feenableexcept and fedisableexcept to control the
1323 behaviour of individual exceptions have been added by Andreas Jaeger.
1325 * ldconfig program added by Andreas Jaeger and Jakub Jelinek.
1327 * The resolver code has been updated from bind 8.2.3-T5B which supports
1328 threads. The integration was done by Andreas Jaeger, Adam D. Bradley,
1329 and Mark Kettenis.
1331 This change could in some situations effect backward compatibility. Since
1332 now `_res' is a thread-local instead of a global variable, modifying it
1333 in one thread does not have any effect in other threads.
1335 The resolver library was also extended to allow IPv6 as the transport
1336 protocol for the requests. This work was done by Stig Venaas.
1338 * Compatibility code for K&R C compilers has been removed from the
1339 header files. A ISO C compiler is needed to use the library
1340 (conforming to either C89 or C99 standard).
1342 * Complete rewrite of the localedef program to support multibyte character
1343 sets. Implement handling of ISO 14651 and ISO 14652. Rewrite strcoll,
1344 strxfrm, wcscoll, and wcsxfrm functions. Make isw*() functions work.
1345 Implemented by Ulrich Drepper.
1347 Bruno Haible significantly improved the generation and use of the data
1348 structures for the wide character tables.
1350 * Plural handling in gettext implemented by Ulrich Drepper.
1352 * The utmp daemon has been removed.
1354 * The port to MIPS-Linux has been finished by Andreas Jaeger.
1356 * A port to Hitachi SH3 and SH4 has been contributed by Kazumoto Kojima
1357 and Yutaka Niibe.
1359 * POSIX clocks and timers implemented by Kaz Kylheku and Ulrich Drepper.
1361 * POSIX barriers implemented by Kaz Kylheku.
1363 * POSIX spawn function family implemented by Ulrich Drepper.
1365 * POSIX spinlocks are now available.
1367 * Timed wait functions for mutex, rwlock, and semaphores are implemented.
1369 * the configure option --enable-kernel=X.Y.Z allows to strip out
1370 compatibility for kernel versions before X.Y.Z. This is currently only
1371 implemented for Linux.
1373 * the sockaddr_in6 structure changed. The IPv6 working group added a new
1374 field sin6_scope_id. This means that all programs using IPv6 should be
1375 recompiled. Don't expect binary compatibility with previous glibc
1376 versions.
1378 * various conversion modules for IBM character sets contributed by
1379 Masahide Washizawa.
1381 * IA-64 port by Jes Sorensen and HJ Lu.
1382 \f
1383 Version 2.1.3
1385 * bug fixes
1387 \f
1388 Version 2.1.2
1390 * bug fixes
1392 \f
1393 Version 2.1.1
1395 * New ISO C 9x function _Exit, imaxabs, and imaxdiv are added.
1397 * New xdr functions are added; some rpc functions are now 64bit clean.
1399 * Fixed a number of bugs and memory leaks (especially in NIS+ code).
1401 * Fixed known incompatibilities with glibc 2.0.
1403 * New functions lock64, strchrnul, rawmemchr, getutmp and getutmpx.
1405 * Optimized a number of functions (especially the ELF dynamic loader).
1407 * Update timezone data files.
1409 * lots of charmaps corrections
1411 * some new locale definitions and charmaps
1413 \f
1414 Version 2.1
1416 * Richard Henderson corrected size of struct timeval on Linux/Alpha to
1417 conform to POSIX member type requirements. Symbol versions have been
1418 adjusted as needed within the library, and for direct use by applications,
1419 but there is potential for problems if third-party libraries use
1420 struct timeval as part of their interface. This does not present
1421 a problem for X and other "essential" system libraries.
1423 * An additional locale model to support C++ Standard Library locale
1424 model and probably more was implemented by Ulrich Drepper.
1426 * Eric Youngdale and Ulrich Drepper implemented versioning of objects on
1427 symbol level.
1429 * Miles Bader provided the `argp' function family to support hierachical
1430 command line argument parsing, layered on top of getopt.
1432 * strtod accepts new hexadecimal floating-point format from ISO C 9X.
1434 * printf has two new specifiers %a and %A to print hexadecimal flaoting-point
1435 numbers.
1437 * scanf recognizes the %a and %A format for scanning floating point numbers.
1439 * the new headers <stdint.h> and <inttypes.h> from ISO C 9X provides
1440 information and interfaces for the available integer types.
1442 * about 130 new math functions were added to implement the ISO C9x math
1443 library.
1445 * the new header <complex.h> contains definitions of the complex math
1446 functions from ISO C 9X.
1448 * the new header <tgmath.h> defines generic macros to use complex or
1449 real valued functions.
1451 * Thorsten Kukuk provided an implementation for NIS+, securelevel 0, 1 and 2.
1453 * Andreas Jaeger provided a test suite for the math library.
1455 * Mark Kettenis implemented the utmpx interface and an utmp daemon.
1457 * Ulrich Drepper added character set conversion functions (iconv).
1459 * Optimized string functions have been added.
1461 * The localedata addon is now part of glibc.
1463 * An implementation of profiling shared libraries was added by Ulrich Drepper.
1465 * Thorsten Kukuk and Ulrich Drepper provided an implementation for a caching
1466 daemon for NSS (nscd).
1468 Missing a better place here are some numbers on improvements. Under
1469 Linux 2.1.125 un-tar-ing the kernel sources takes
1471 user system wall
1473 using local files 12.19s 6.88s 22.91s
1475 using NIS 13.92s 8.91s 26.34s
1477 using NIS & nscd 10.37s 7.34s 25.30s
1479 using NIS+ 27.57s 30.37s 640.46s
1481 using NIS+ & nscd 10.25s 7.83s 26.51s
1483 using NIS & old nscd [1] 13.83s 8.32s 29.60s
1485 Keep in mind that non-namelookup related operations dominate above times.
1486 It was just a common complain that using NIS+ unpacking the kernel is
1487 horribly slow.
1489 [1] The old nscd implementation is not available anymore since it was
1490 distributed with glibc up to version 2.0.98 and thus is now replaced.
1492 * Tim Waugh provided an implementation of the POSIX.2 wordexp function family.
1494 * Mark Kettenis provided a Hesiod NSS module.
1496 * The ELF dynamic loader knows how to process dynamic string tokens ($ORIGIN
1497 and $PLATFORM) in RPATHs and similar strings (Ulrich Drepper).
1499 * rcmd can now handle netgroups (Dick Streefland).
1501 * A port to the ARM was contributed by Phil Blundell, Pat Beirne and Scott
1502 Bambrough.
1504 * Support for the IPv6 protocol has been added to the socket API, as per the
1505 latest draft standards.
1507 * Support for Linux 2.2 has been added.
1509 * Interface changes relative to the latest 2.0.x release:
1510 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1511 addseverity NEW: Unix98
1512 alphasort64 NEW: LFS
1513 argp_err_exit_status NEW: argp, GNU ext
1514 argp_error NEW: argp, GNU ext
1515 argp_failure NEW: argp, GNU ext
1516 argp_help NEW: argp, GNU ext
1517 argp_parse NEW: argp, GNU ext
1518 argp_program_bug_address NEW: argp, GNU ext
1519 argp_program_version NEW: argp, GNU ext
1520 argp_program_version_hook NEW: argp, GNU ext
1521 argp_state_help NEW: argp, GNU ext
1522 argp_usage NEW: argp, GNU ext
1523 authdes_create NEW: Secure RPC
1524 authdes_getucred NEW: Secure RPC
1525 authdes_pk_create NEW: Secure RPC
1526 backtrace NEW: GNU ext.
1527 backtrace_symbols NEW: GNU ext.
1528 backtrace_symbols_fd NEW: GNU ext.
1529 cacos NEW: ISO C 9x
1530 cacosf NEW: ISO C 9x
1531 cacosh NEW: ISO C 9x
1532 cacoshf NEW: ISO C 9x
1533 cacoshl NEW: ISO C 9x
1534 cacosl NEW: ISO C 9x
1535 capget NEW: kernel
1536 capset NEW: kernel
1537 carg NEW: ISO C 9x
1538 cargf NEW: ISO C 9x
1539 cargl NEW: ISO C 9x
1540 casin NEW: ISO C 9x
1541 casinf NEW: ISO C 9x
1542 casinh NEW: ISO C 9x
1543 casinhf NEW: ISO C 9x
1544 casinhl NEW: ISO C 9x
1545 casinl NEW: ISO C 9x
1546 catan NEW: ISO C 9x
1547 catanf NEW: ISO C 9x
1548 catanh NEW: ISO C 9x
1549 catanhf NEW: ISO C 9x
1550 catanhl NEW: ISO C 9x
1551 catanl NEW: ISO C 9x
1552 cbc_crypt NEW: Secure RPC
1553 ccos NEW: ISO C 9x
1554 ccosf NEW: ISO C 9x
1555 ccosh NEW: ISO C 9x
1556 ccoshf NEW: ISO C 9x
1557 ccoshl NEW: ISO C 9x
1558 ccosl NEW: ISO C 9x
1559 cexp NEW: ISO C 9x
1560 cexpf NEW: ISO C 9x
1561 cexpl NEW: ISO C 9x
1562 cimag NEW: ISO C 9x
1563 cimagf NEW: ISO C 9x
1564 cimagl NEW: ISO C 9x
1565 clearerr_locked REMOVED
1566 clntunix_create NEW: sunrpc ext
1567 clog NEW: ISO C 9x
1568 clog10 NEW: ISO C 9x
1569 clog10f NEW: ISO C 9x
1570 clog10l NEW: ISO C 9x
1571 clogf NEW: ISO C 9x
1572 clogl NEW: ISO C 9x
1573 conj NEW: ISO C 9x
1574 conjf NEW: ISO C 9x
1575 conjl NEW: ISO C 9x
1576 cpow NEW: ISO C 9x
1577 cpowf NEW: ISO C 9x
1578 cpowl NEW: ISO C 9x
1579 cproj NEW: ISO C 9x
1580 cprojf NEW: ISO C 9x
1581 cprojl NEW: ISO C 9x
1582 creal NEW: ISO C 9x
1583 crealf NEW: ISO C 9x
1584 creall NEW: ISO C 9x
1585 creat64 NEW: LFS
1586 csin NEW: ISO C 9x
1587 csinf NEW: ISO C 9x
1588 csinh NEW: ISO C 9x
1589 csinhf NEW: ISO C 9x
1590 csinhl NEW: ISO C 9x
1591 csinl NEW: ISO C 9x
1592 csqrt NEW: ISO C 9x
1593 csqrtf NEW: ISO C 9x
1594 csqrtl NEW: ISO C 9x
1595 ctan NEW: ISO C 9x
1596 ctanf NEW: ISO C 9x
1597 ctanh NEW: ISO C 9x
1598 ctanhf NEW: ISO C 9x
1599 ctanhl NEW: ISO C 9x
1600 ctanl NEW: ISO C 9x
1601 des_setparity NEW: Secure RPC
1602 ecb_crypt NEW: Secure RPC
1603 endutxent NEW: Unix98
1604 exp10 NEW: ISO C 9x
1605 exp10f NEW: ISO C 9x
1606 exp10l NEW: ISO C 9x
1607 exp2 NEW: ISO C 9x
1608 exp2f NEW: ISO C 9x
1609 exp2l NEW: ISO C 9x
1610 fattach NEW: STREAMS
1611 fdetach NEW: STREAMS
1612 fdim NEW: ISO C 9x
1613 fdimf NEW: ISO C 9x
1614 fdiml NEW: ISO C 9x
1615 feclearexcept NEW: ISO C 9x
1616 fegetenv NEW: ISO C 9x
1617 fegetexceptflag NEW: ISO C 9x
1618 fegetround NEW: ISO C 9x
1619 feholdexcept NEW: ISO C 9x
1620 feof_locked REMOVED
1621 feraiseexcept NEW: ISO C 9x
1622 ferror_locked REMOVED
1623 fesetenv NEW: ISO C 9x
1624 fesetexceptflag NEW: ISO C 9x
1625 fesetround NEW: ISO C 9x
1626 fetestexcept NEW: ISO C 9x
1627 feupdateenv NEW: ISO C 9x
1628 fflush_locked REMOVED
1629 ffsl NEW: GNU ext.
1630 ffsll NEW: GNU ext.
1631 fgetpos64 NEW: LFS
1632 fgets_unlocked NEW: GNU ext.
1633 fileno_locked REMOVED
1634 fma NEW: ISO C 9x
1635 fmaf NEW: ISO C 9x
1636 fmal NEW: ISO C 9x
1637 fmax NEW: ISO C 9x
1638 fmaxf NEW: ISO C 9x
1639 fmaxl NEW: ISO C 9x
1640 fmin NEW: ISO C 9x
1641 fminf NEW: ISO C 9x
1642 fminl NEW: ISO C 9x
1643 fmtmsg NEW: Unix98
1644 fopen64 NEW: LFS
1645 fputc_locked REMOVED
1646 fputs_unlocked NEW: GNU ext.
1647 fread_unlocked NEW: GNU ext.
1648 freopen64 NEW: LFS
1649 fseeko NEW: Unix98
1650 fsetpos64 NEW: LFS
1651 fstatfs64 NEW: LFS
1652 fstatvfs NEW: Unix98
1653 fstatvfs64 NEW: LFS
1654 ftello NEW: Unix98
1655 ftello64 NEW: LFS
1656 ftruncate64 NEW: LFS
1657 ftw64 NEW: LFS
1658 fwrite_unlocked NEW: GNU ext.
1659 gai_strerror NEW: IPv6
1660 gamma_r REMOVED
1661 gammaf_r REMOVED
1662 gammal_r REMOVED
1663 getchar_locked REMOVED
1664 getdate NEW: Unix98
1665 getdate_err NEW: Unix98
1666 getdate_r NEW: GNU ext.
1667 getmsg NEW: STREAMS
1668 getnameinfo NEW: IPv6
1669 getnetname NEW: Secure RPC
1670 getpmsg NEW: STREAMS
1671 getpt NEW: Unix98 PTY
1672 getrlimit64 NEW: LFS
1673 getutxent NEW: Unix98
1674 getutxid NEW: Unix98
1675 getutxline NEW: Unix98
1676 glob64 NEW: GNU ext.
1677 globfree64 NEW: GNU ext.
1678 gnu_get_libc_release NEW: GNU ext.
1679 gnu_get_libc_version NEW: GNU ext.
1680 grantpt NEW: Unix98 PTY
1681 host2netname NEW: Secure RPC
1682 iconv NEW: iconv
1683 iconv_close NEW: iconv
1684 iconv_open NEW: iconv
1685 if_freenameindex NEW: IPv6
1686 if_indextoname NEW: IPv6
1687 if_nameindex NEW: IPv6
1688 if_nametoindex NEW: IPv6
1689 in6addr_any NEW: IPv6
1690 in6addr_loopback NEW: IPv6
1691 inet6_isipv4mapped NEW: IPv6
1692 isastream NEW: STREAMS
1693 iswblank NEW: GNU ext.
1694 key_decryptsession NEW: Secure RPC
1695 key_decryptsession_pk NEW: Secure RPC
1696 key_encryptsession NEW: Secure RPC
1697 key_encryptsession_pk NEW: Secure RPC
1698 key_gendes NEW: Secure RPC
1699 key_get_conv NEW: Secure RPC
1700 key_secretkey_is_set NEW: Secure RPC
1701 key_setnet NEW: Secure RPC
1702 key_setsecret NEW: Secure RPC
1703 llrint NEW: ISO C 9x
1704 llrintf NEW: ISO C 9x
1705 llrintl NEW: ISO C 9x
1706 llround NEW: ISO C 9x
1707 llroundf NEW: ISO C 9x
1708 llroundl NEW: ISO C 9x
1709 log2 NEW: ISO C 9x
1710 log2f NEW: ISO C 9x
1711 log2l NEW: ISO C 9x
1712 lrint NEW: ISO C 9x
1713 lrintf NEW: ISO C 9x
1714 lrintl NEW: ISO C 9x
1715 lround NEW: ISO C 9x
1716 lroundf NEW: ISO C 9x
1717 lroundl NEW: ISO C 9x
1718 lseek64 NEW: LFS
1719 makecontext NEW: Unix98
1720 mempcpy NEW: GNU ext.
1721 mmap64 NEW: LFS
1722 moncontrol REMOVED
1723 modify_ldt NEW: kernel
1724 nan NEW: ISO C 9x
1725 nanf NEW: ISO C 9x
1726 nanl NEW: ISO C 9x
1727 nearbyint NEW: ISO C 9x
1728 nearbyintf NEW: ISO C 9x
1729 nearbyintl NEW: ISO C 9x
1730 netname2host NEW: Secure RPC
1731 netname2user NEW: Secure RPC
1732 nexttoward NEW: ISO C 9x
1733 nexttowardf NEW: ISO C 9x
1734 nexttowardl NEW: ISO C 9x
1735 nftw NEW: Unix98
1736 nftw64 NEW: LFS
1737 open64 NEW: LFS
1738 passwd2des NEW: Secure RPC
1739 pow10 NEW: GNU ext.
1740 pow10f NEW: GNU ext.
1741 pow10l NEW: GNU ext.
1742 pread NEW: Unix98
1743 pread64 NEW: LFS
1744 printf_size NEW: GNU ext.
1745 printf_size_info NEW: GNU ext.
1746 profil_counter REMOVED
1747 pthread_mutexattr_getkind_np REPLACED
1748 pthread_mutexattr_setkind_np REPLACED
1749 ptsname NEW: Unix98 PTY
1750 ptsname_r NEW: Unix98 PTY
1751 putc_locked REMOVED
1752 putchar_locked REMOVED
1753 putgrent NEW: GNU ext.
1754 putmsg NEW: STREAMS
1755 putpmsg NEW: STREAMS
1756 pututxline NEW: Unix98
1757 pwrite NEW: Unix98
1758 pwrite64 NEW: LFS
1759 readdir64 NEW: LFS
1760 readdir64_r NEW: LFS
1761 remquo NEW: ISO C 9x
1762 remquof NEW: ISO C 9x
1763 remquol NEW: ISO C 9x
1764 round NEW: ISO C 9x
1765 roundf NEW: ISO C 9x
1766 roundl NEW: ISO C 9x
1767 rtime NEW: GNU ext.
1768 scalbln NEW: ISO C 9x
1769 scalblnf NEW: ISO C 9x
1770 scalblnl NEW: ISO C 9x
1771 scandir64 NEW: LFS
1772 sendfile NEW: kernel
1773 setcontext NEW: Unix98
1774 setrlimit64 NEW: LFS
1775 setutxent NEW: Unix98
1776 sighold NEW: Unix98
1777 sigignore NEW: Unix98
1778 sigqueue NEW: POSIX.1b
1779 sigrelse NEW: Unix98
1780 sigset NEW: POSIX.1b
1781 sigtimedwait NEW: POSIX.1b
1782 sigwaitinfo NEW: POSIX.1b
1783 sincos NEW: GNU ext.
1784 sincosf NEW: GNU ext.
1785 sincosl NEW: GNU ext.
1786 statfs64 NEW: LFS
1787 statvfs NEW: Unix98
1788 statvfs64 NEW: LFS
1789 strcasestr NEW: GNU ext.
1790 strtoimax NEW: ISO C 9x
1791 strtoumax NEW: ISO C 9x
1792 strverscmp NEW: GNU ext.
1793 svcauthdes_stats NEW: Secure RPC
1794 svcunix_create NEW: sunrpc etx
1795 svcunixfd_create NEW: sunrpc ext
1796 swapcontext NEW: Unix98
1797 tcgetsid NEW: Unix98 PTY
1798 tdestroy NEW: GNU ext.
1799 tgamma NEW: ISO C 9x
1800 tgammaf NEW: ISO C 9x
1801 tgammal NEW: ISO C 9x
1802 tmpfile64 NEW: LFS
1803 trunc NEW: ISO C 9x
1804 truncate64 NEW: LFS
1805 truncf NEW: ISO C 9x
1806 truncl NEW: ISO C 9x
1807 umount2 NEW: kernel
1808 unlockpt NEW: Unix98 PTY
1809 updwtmpx NEW: Unix98
1810 user2netname NEW: Secure RPC
1811 utmpxname NEW: Unix98
1812 versionsort NEW: GNU ext.
1813 versionsort64 NEW: GNU ext.
1814 waitid NEW: Unix98
1815 wcscasecmp NEW: GNU ext.
1816 wcsncasecmp NEW: GNU ext.
1817 wcsnlen NEW: GNU ext.
1818 wcstoimax NEW: ISO C 9x
1819 wcstoll NEW: ISO C 9x
1820 wcstoull NEW: ISO C 9x
1821 wcstoumax NEW: ISO C 9x
1822 wcswcs NEW: Unix98
1823 wordexp NEW: POSIX.2
1824 wordfree NEW: POSIX.2
1825 write_profiling REMOVED
1826 xdecrypt NEW: Secure RPC
1827 xdr_authdes_cred NEW: Secure RPC
1828 xdr_authdes_verf NEW: Secure RPC
1829 xdr_cryptkeyarg NEW: Secure RPC
1830 xdr_cryptkeyarg2 NEW: Secure RPC
1831 xdr_cryptkeyres NEW: Secure RPC
1832 xdr_getcredres NEW: Secure RPC
1833 xdr_key_netstarg NEW: Secure RPC
1834 xdr_key_netstres NEW: Secure RPC
1835 xdr_keybuf NEW: Secure RPC
1836 xdr_keystatus NEW: Secure RPC
1837 xdr_netnamestr NEW: Secure RPC
1838 xdr_sizeof NEW: Secure RPC
1839 xdr_unixcred NEW: sunrpc ext
1840 xencrypt NEW: Secure RPC
1841 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1842 \f
1843 Version 2.0.6
1845 * more bug fixes
1847 \f
1848 Version 2.0.5
1850 * more bug fixes
1852 * inet_ntoa is thread-safe
1854 * updwtmp is moved from libutil to libc
1856 * rewrite of cbrt function
1858 * update of timezone data
1859 \f
1860 Version 2.0.4
1862 * more bug fixes
1863 \f
1864 Version 2.0.3
1866 * more bug fixes
1867 \f
1868 Version 2.0.2
1870 * more bug fixes
1872 * add atoll function
1874 * fix complex problems in Berkeley DB code
1876 * fix math functions
1877 \f
1878 Version 2.0.1
1880 * fixed lots of header problems (especially Linux/GNU specific)
1882 * dynamic loader preserves all registers
1884 * Roland McGrath provided support for handling of auxiliary objects in
1885 the ELF dynamic loader.
1887 * support for parallel builds is improved
1888 \f
1889 Version 2.0
1891 * GNU extensions are no longer declared by default. To enable them you
1892 must define the macro `_GNU_SOURCE' in your program or compile with
1893 `-D_GNU_SOURCE'.
1895 * The library has changed from using GNU ld symbol aliases to using weak
1896 symbols where available. The ELF object file format supports weak
1897 symbols; GNU ld also supports weak symbols in the a.out format. (There
1898 is also now support for other GNU ld extensions in ELF. Use the
1899 `--with-elf' option to configure to indicate you have ELF, and
1900 `--with-gnu-ld' if using GNU ld.) This change resulted in the deletion
1901 of many files which contained only symbol aliases, reducing the size of
1902 the source and the compiled library; many other files were renamed to
1903 less cryptic names previously occupied by the symbol alias files.
1904 There is a new header file <elf.h> for programs which operate on
1905 files in the ELF format.
1907 * Converted to Autoconf version 2, so `configure' has more options.
1908 Run `configure --help' to see the details.
1910 * The library can now be configured to build profiling, highly-optimized
1911 (but undebuggable), and/or shared libraries (ELF with GNU ld only). The
1912 `--enable-profile', `--enable-omitfp', and `--enable-shared' options to
1913 `configure' enable building these extra libraries. The shared library is
1914 built by default when using both ELF and GNU ld. When shared libraries
1915 are enabled, the new library `-ldl' is available for arbitrary run-time
1916 loading of shared objects; its interface is defined in <dlfcn.h>. The
1917 new header file <link.h> gives access to the internals of the run-time
1918 dynamic linker, `ld.so'. The shell script `ldd' is similar to the
1919 application of same name on other systems and it provides information
1920 about dynamically linked binaries.
1922 * The C library now provides the run-time support code for profiling
1923 executables compiled with `-pg'. Programs can control the profiling code
1924 through the interface in <sys/gmon.h>. The `gmon.out' files written by
1925 the GNU C library can be read only by GNU `gprof' (from GNU binutils);
1926 the support for this file format was contributed by David Mosberger-Tang.
1928 * The math code has been replaced with a math library based on fdlibm from
1929 Sun, and modified by JT Conklin and Ulrich Drepper with i387 support, by
1930 Ian Taylor with `float' functions and by Ulrich Drepper with `long double'
1931 functions. The math functions now reside in a separate library, so
1932 programs using them will need to use `-lm' their linking commands.
1934 * John C. Bowman contributed optimized ix87 assembler inline functions.
1936 * Ulrich Drepper has contributed support for an `/etc/nsswitch.conf'
1937 mechanism similar to that found in Solaris 2. This is now used for the
1938 group, passwd, hosts, networks, services, protocols, rpc, ethers,
1939 shadow, netgroup, publickey, and alias databases. The `nsswitch.conf'
1940 file controls what services are used for each individual database. This
1941 works by loading shared libraries with names specified in `nsswitch.conf',
1942 so service modules can be changed or added at any time without even
1943 relinking any program. Currently there are the file, db, and NIS based
1944 NSS services available.
1946 * The new functions `strtoq' and `strtouq' parse integer values from
1947 strings, like `strtol' and `strtoul', but they return `long long int' and
1948 `unsigned long long int' values, respectively (64-bit quantities).
1950 * The new functions `strtof' and `strtold' parse floating-point values from
1951 strings, like `strtod', but they return `float' and `long double' values,
1952 respectively (on some machines `double' and `long double' are the same).
1954 * Ulrich Drepper has contributed new implementations of the floating-point
1955 printing and reading code used in the `printf' family of functions and
1956 `strtod', `strtof', and `strtold'. These new functions are perfectly
1957 accurate, and much faster than the old ones.
1959 * The implementation of the POSIX locale model was completely rewritten by
1960 Ulrich Drepper. This includes the new programs `localedef' and `locale'
1961 to compile the POSIX locale definition.
1963 * The former dummy implementations of the strcoll and strxfrm function are
1964 now replaced by fully functional code contributed by Ulrich Drepper. The
1965 collation information comes from the POSIX locale definitions.
1967 * The new header <langinfo.h> defines an interface for accessing
1968 various locale-dependent data (using the locale chosen with `setlocale').
1970 * Ulrich Drepper has contributed a new suite of functions for operation on
1971 wide-character and multibyte-character strings, in <wchar.h>;
1972 and classification and case conversion of wide characters, in <wctype.h>.
1973 These new functions are conforming to the ISO C, Amendement 1 specification.
1975 * There is now a second implementation of the standard I/O library available.
1976 It comes from GNU libg++ as was written by Per Bothner, heavily modified
1977 by Hongjiu Lu and made thread safe by Ulrich Drepper.
1979 * You can now use positional parameter specifications in format strings
1980 for the `printf' and `scanf' families of functions. For example,
1981 `printf ("Number %2$d, Mr %1$s\n", "Jones", 6);'' prints
1982 ``Number 6, Mr Jones''. This is mainly useful when providing different
1983 format strings for different languages, whose grammars may dictate
1984 different orderings of the values being printed. To support this
1985 feature, the interface for `register_printf_handler' has changed; see
1986 the header file <printf.h> for details.
1988 * The `printf' and `scanf' families of functions now understand a new
1989 formatting flag for numeric conversions: the ' flag (e.g. %'d or %'f) says
1990 to group numbers as indicated by the locale; for `scanf' and friends, this
1991 says to accept as valid only a number with all the proper grouping
1992 separators in the right places. In the default "C" locale, numbers are
1993 not grouped; but locales for specific countries will define the usual
1994 conventions (i.e. separate thousands with `,' in the US locale).
1996 * The pgrp functions have been regularized, slightly incompatibly but much
1997 less confusingly. The core functions are now `getpgid' and `setpgid',
1998 which take arguments for the PID to operate on; the POSIX.1 `getpgrp' (no
1999 argument) and BSD `setpgrp' (identical to `setpgid') functions are
2000 provided for compatibility. There is no longer an incompatible `getpgrp'
2001 with an argument declared under _BSD_SOURCE; no BSD code uses it.
2003 * The new header file <fts.h> and suite of functions simplify programs that
2004 operate on directory trees. This code comes from 4.4 BSD.
2006 * The resolver code has been updated from the BIND 4.9.5-P1 release.
2007 Parts of the code were heavily modified by Ulrich Drepper to fit in the
2008 NSS scheme used in glibc.
2010 * There is a new malloc debugging hook `__memalign_hook'.
2012 * There are new typedefs `ushort' for `unsigned short int' and `uint' for
2013 `unsigned int' in <sys/types.h>. These are for compatibility only and
2014 their use is discouraged.
2016 * The `-lmcheck' library to enable standard malloc debugging hooks is now
2017 done differently, so that it works even without GNU ld.
2019 * New function `euidaccess' checks allowed access to a file like `access',
2020 but using the effective IDs instead of the real IDs.
2022 * The time zone data files have been updated for the latest and greatest
2023 local time conventions of the countries of the world.
2025 * The new function `dirfd' extracts the file descriptor used by a DIR stream;
2026 see <dirent.h>.
2028 * The new functions `ecvt', `fcvt', and `gcvt' provide an obsolete interface
2029 for formatting floating-point numbers. They are provided only for
2030 compatibility; new programs should use `sprintf' instead. There are
2031 also equivalent function for the `long double' floating-point type and
2032 all functions also exist in a reentrant form.
2034 * The new auxiliary library `-lutil' from 4.4 BSD contains various
2035 functions for maintaining the login-record files (primarily of use to
2036 system programs such as `login'), and convenient functions for
2037 allocating and initializing a pseudo-terminal (pty) device.
2039 * Ulrich Drepper has contributed new support for System V style
2040 shared memory and IPC on systems that support it.
2042 * Ulrich Drepper has contributed several miscellaneous new functions found
2043 in System V: The `hsearch' family of functions provide an effective
2044 implementation of hash tables; `a64l' and `l64a' provide a very simple
2045 binary to ASCII mapping; `drand48' and friends provide a 48-bit random
2046 number generator.
2048 * Ulrich Drepper has contributed new reentrant counterparts for the
2049 `random' and `hsearch' families of functions; `random_r', `hsearch_r', etc.
2051 * Ulrich Drepper has contributed new, highly-optimized versions of several
2052 string functions for the i486/Pentium family of processors.
2054 * Ulrich Drepper has updated the Linux-specific code, based largely
2055 on work done in Hongjiu Lu's version of GNU libc for Linux.
2056 The GNU library now supports Linux versions 2.0.10 and later,
2057 using the ELF object file format (i[3456]86-*-linux).
2059 * Andreas Schwab has ported the C library to Linux/m68k (m68k-*-linux).
2061 * David Mosberger-Tang and Richard Henderson have ported the C library
2062 to Linux/Alpha (alpha-*-linux). Richard Henderson contributed the
2063 dynamic linking support for ELF/Alpha.
2065 * Richard Henderson contributed several Alpha optimized assembler function
2066 for arithmetic and string handling.
2068 * Ulrich Drepper has contributed a new set of message catalog functions to
2069 support multiple languages using the <libintl.h> interface, for use with
2070 his new package GNU gettext. Translation volunteers have contributed
2071 catalogs of the library's messages in Spanish, German, and Korean.
2073 * For compatibility with XPG4, Ulrich Drepper has contributed the `gencat'
2074 program and the `catgets' function for reading the catalog files it
2075 creates. (The <libintl.h> interface is preferred; we include the
2076 <nl_types.h> interface using `catgets' only for source compatibility with
2077 programs already written to use it.)
2079 * New header file <values.h> gives SVID-compatible names for <limits.h>
2080 constants.
2082 * Various new macros, declarations, and small header files for compatibility
2083 with 4.4 BSD.
2085 * New function `group_member' is a convenient way to check if a process has
2086 a given effective group ID.
2088 * When using GCC 2.7 and later, the socket functions are now declared in a
2089 special way so that passing an argument of type `struct sockaddr_in *',
2090 `struct sockaddr_ns *', or `struct sockaddr_un *' instead of the generic
2091 `struct sockaddr *' type, does not generate a type-clash warning.
2093 * New function `error' declared in header file <error.h> is a convenient
2094 function for printing error messages and optionally exiting; this is the
2095 canonical function used in GNU programs. The new functions `err', `warn',
2096 and friends in header file <err.h> are the canonical 4.4 BSD interface for
2097 doing the same thing.
2099 * The <glob.h> interface has several new flags from 4.4 BSD that extend the
2100 POSIX.2 `glob' function to do ~ and {...} expansion.
2102 * New function `unsetenv' complements `setenv' for compatibility with 4.4 BSD.
2103 `clearenv' which is used in POSIX.9 is also available.
2105 * New function `getsid' returns session ID number on systems that support it.
2107 * We have incorporated the 4.4 BSD `db' library (version 1.85). New header
2108 files <db.h> and <mpool.h> provide a rich set of functions for several
2109 types of simple databases stored in memory and in files, and <ndbm.h> is
2110 an old `ndbm'-compatible interface using the `db' functions. Link with
2111 `-ldb' to get these functions.
2113 * New macro `strdupa' copies a string like `strdup', but uses local stack
2114 space from `alloca' instead of dynamic heap space from `malloc'.
2116 * New function `strnlen' is like `strlen' but searches only a given maximum
2117 number of characters for the null terminator. `stpncpy', `strndup' and
2118 `strndupa' are similar variants for the `stpcpy', `strdup' and `strdupa'
2119 function.
2121 * New function `statfs' in header <sys/statfs.h>.
2123 * The new <argz.h> and <envz.h> interfaces contributed by Miles Bader
2124 provide convenient functions for operating on blocks of null-terminated
2125 strings.
2127 * A new suite of functions in <utmp.h> handle all the details of reading
2128 and writing the utmp file.
2130 * An implementation of the NIS/YP(tm) based NSS service was contributed by
2131 Thorsten Kukuk.
2133 * Paul Eggert and Ulrich Drepper modified the `strftime' function to be
2134 completely POSIX compliant and also implemented the extended functionality
2135 to handle alternate digit representation and alternate era date formats.
2137 * Ulrich Drepper provided an implementation of the `strptime' function
2138 defined in XPG4.2 which transforms a string into a `struct tm' value.
2140 * Paul Eggert provided the tzselect shell script as part of the timezone
2141 code. The shell script makes it easy to select the correct timezone
2142 specification.
2144 * The implementation of the malloc family of functions is completely replaced
2145 by a new implementation by Doug Lea with many improvements by Wolfram Gloger.
2146 The implementation uses the mmap function (if available) and it is
2147 optimized for the use in multi threaded programs.
2149 * Ulrich Drepper contributed a MD5 "encryption" for the crypt family of
2150 functions. This new functionality is usable by specifying a special
2151 salt string and it is compatible with implementation on *BSD systems.
2153 * Lots of functions from the XPG4.2 standard were added by Ulrich Drepper:
2154 `getsubopt' to handle second level command line options, `bsd_signal'
2155 to access BSD style `signal' functionality, the obsolete `regexp' style
2156 expression matcher.
2158 * the `lchown' function is available on system which support this
2159 functionality.
2161 * The implementation of the shadow password handling function was contributed
2162 by Ulrich Drepper.
2164 * David Mosberger-Tang changed the SunRPC implementation to be 64bit safe.
2166 * POSIX.1g support was added. The <sys/select.h> header is available,
2167 `isfdtype' and `pselect' are implemented. Craig Metz contributed an
2168 implementation of `getaddrinfo'.
2169 \f
2170 Version 1.09
2172 * For cross-compilation you should now set `BUILD_CC' instead of `HOST_CC'.
2174 * New header file <fstab.h> and new functions `getfsspec', `getfsent' and
2175 friends, for parsing /etc/fstab. This code comes from 4.4 BSD.
2177 * The new function `daemon' from 4.4 BSD is useful for server programs that
2178 want to put themselves in the background.
2180 * Joel Sherrill has contributed support for several standalone boards that
2181 run without an operating system.
2183 * `printf', `scanf' and friends now accept a `q' type modifier for long
2184 long int as well as `ll'. Formats using these might be `%qu' or `%lld'.
2186 * All of the code taken from BSD (notably most of the math and networking
2187 routines) has been updated from the BSD 4.4-Lite release.
2189 * The resolver code has been updated from the BIND-4.9.3-BETA9 release.
2191 * The new functions `getdomainname' and `setdomainname' fetch or change the
2192 YP/NIS domain name. These are system calls which exist on systems which
2193 have YP (aka NIS).
2195 * The time zone data files have been updated for the latest international
2196 conventions.
2198 * The SunRPC programs `portmap' and `rpcinfo' are now installed in
2199 $(sbindir) (usually /usr/local/sbin) instead of $(bindir).
2200 \f
2201 Version 1.08
2203 * The C library now includes support for Sun RPC, from Sun's free
2204 RPCSRC-4.0 distribution. The `portmap', `rpcinfo', and `rpcgen' programs
2205 are included. (There is still no support for YP.)
2207 * Tom Quinn has contributed a port of the C library to SGI machines running
2208 Irix 4 (mips-sgi-irix4).
2210 * The new `lockf' function is a simplified interface to the locking
2211 facilities of `fcntl', included for compatibility.
2213 * New time functions `timegm', `timelocal', and `dysize' for compatibility.
2215 * New header file <sys/timeb.h> and new function `ftime' for compatibility.
2217 * New header files <poll.h> and <sys/poll.h> and new function `poll' for
2218 compatibility.
2220 * The error message printed by `assert' for a failed assertion now includes
2221 the name of the program (if using GNU ld) and the name of the calling
2222 function (with versions of GCC that support this).
2224 * The `psignal' function is now declared in <signal.h>, not <stdio.h>.
2226 * The library now includes the <sys/mman.h> header file and memory
2227 management functions `mmap', `munmap', `mprotect', `msync', and
2228 `madvise', on systems that support those facilities.
2230 * The interface for `mcheck' has changed slightly: the function called to
2231 abort the program when an allocation inconsistency is detected now takes
2232 an argument that indicates the type of failure. The new function
2233 `mprobe' lets you request a consistency check for a particular block at
2234 any time (checks are normally done only when you call `free' or `realloc'
2235 on a block).
2237 * It is now possible to easily cross-compile the C library, building on one
2238 system a library to run on another machine and/or operating system. All
2239 you need to do is set the variable `HOST_CC' in `configparms' to the
2240 native compiler for programs to run on the machine you are building on (a
2241 few generator programs are used on Unix systems); set `CC' to the
2242 cross-compiler.
2244 * The new function `fexecve' (only implemented on the GNU system) executes
2245 a program file given a file descriptor already open on the file.
2246 \f
2247 Version 1.07
2249 * Brendan Kehoe has contributed most of a port to the DEC Alpha
2250 running OSF/1 (alpha-dec-osf1). He says it is 75% complete.
2252 * You can set the variable `libprefix' in `configparms' to specify a prefix
2253 to be prepended to installed library files; this makes it easy to install
2254 the GNU C library to be linked as `-lgnuc' or whatever.
2256 * The new `stpncpy' is a cross between `stpcpy' and `strncpy': It
2257 copies a limited number of characters from a string, and returns the
2258 address of the last character written.
2260 * You no longer need to check for whether the installed `stddef.h' is
2261 compatible with the GNU C library. configure now checks for you.
2263 * You can now define a per-stream `fileno' function to convert the
2264 stream's cookie into an integral file descriptor.
2266 * ``malloc (0)'' no longer returns a null pointer. Instead, it
2267 allocates zero bytes of storage, and returns a unique pointer which
2268 you can pass to `realloc' or `free'. The behavior is undefined if
2269 you dereference this pointer.
2271 * The C library now runs on Sony NEWS m68k machines running either
2272 NewsOS 3 or NewsOS 4.
2274 * The new `syscall' function is a system-dependent primitive function
2275 for invoking system calls. It has the canonical behavior on Unix
2276 systems, including unreliable return values for some calls (such as
2277 `pipe', `fork' and `getppid').
2279 * The error code `EWOULDBLOCK' is now obsolete; it is always defined
2280 to `EAGAIN', which is the preferred name. On systems whose kernels
2281 use two distinct codes, the C library now translates EWOULDBLOCK to
2282 EAGAIN in every system call function.
2283 \f
2284 Version 1.06
2286 * The GNU C Library Reference Manual is now distributed with the library.
2287 `make dvi' will produce a DVI file of the printed manual.
2288 `make info' will produce Info files that you can read on line using C-h i
2289 in Emacs or the `info' program.
2290 Please send comments on the manual to bug-glibc-manual@gnu.org.
2292 * The library now supports SVR4 on i386s (i386-unknown-sysv4).
2294 * Brendan Kehoe has contributed a port to Sun SPARCs running Solaris 2.
2296 * Jason Merrill has contributed a port to the Sequent Symmetry running
2297 Dynix version 3 (i386-sequent-dynix).
2299 * The library has been ported to i386s running SCO 3.2.4 (also known as SCO
2300 ODT 2.0; i386-unknown-sco3.2.4) or SCO 3.2 (i386-unknown-sco3.2).
2302 * New function `memory_warnings' lets you arrange to get warnings when
2303 malloc is running out of memory to allocate, like Emacs gives you.
2305 * The C library now contains the relocating allocator used in Emacs 19 for
2306 its editing buffers. This allocator (ralloc) minimizes allocation
2307 overhead and fragmentation by moving allocated regions around whenever it
2308 needs to. You always refer to a ralloc'd region with a "handle" (a
2309 pointer to a pointer--an object of type `void **').
2311 * There is a new `printf' format: `%m' gives you the string corresponding
2312 to the error code in `errno'.
2314 * In `scanf' formats, you can now use `%as' or `%a[' to do the normal `%s'
2315 or `%[' conversion, but instead of filling in a fixed-sized buffer you
2316 pass, the `a' modifier says to fill in a `char **' you pass with a
2317 malloc'd string.
2319 * The `fnmatch' function supports the new flag bits `FNM_LEADING_DIR' and
2320 `FNM_CASEFOLD'. `FNM_LEADING_DIR' lets a pattern like `foo*' match a
2321 name like `foo/bar'. `FNM_CASEFOLD' says to ignore case in matching.
2323 * `mkstemp' is a traditional Unix function to atomically create and open a
2324 uniquely-named temporary file.
2325 \f
2326 Version 1.05
2328 * The standard location for the file that says what the local timezone is
2329 has changed again. It is now `/usr/local/etc/localtime' (or more
2330 precisely, `${prefix}/etc/localtime') rather than `/etc/localtime'.
2332 * The distribution no longer contains any files with names longer than 14
2333 characters.
2335 * `struct ttyent' has two new flag bits: TTY_TRUSTED and TTY_CONSOLE.
2336 These are set by the new `trusted' and `console' keywords in `/etc/ttys'.
2338 * New functions `ttyslot' and `syslog' from 4.4 BSD.
2339 \f
2340 Version 1.04
2342 * The configuration process has changed quite a bit. The `configure'
2343 script is now used just like the configuration scripts for other GNU
2344 packages. The `sysdeps' directory hierarchy is much rearranged.
2345 The file `INSTALL' explains the new scheme in detail.
2347 * The header files no longer need to be processed into ANSI C and
2348 traditional C versions. There is just one set of files to install, and
2349 it will work with ANSI or old C compilers (including `gcc -traditional').
2351 * Brendan Kehoe and Ian Lance Taylor have ported the library to the
2352 MIPS DECStation running Ultrix 4.
2354 * The Sun 4 startup code (crt0) can now properly load SunOS 4 shared libraries.
2355 Tom Quinn contributed the initial code. The GNU C library can NOT yet be
2356 made itself into a shared library.
2358 * Yet further improved support for the i386, running 4.3 BSD-like systems
2359 (such as Mach 3 with the Unix single-server), or System V.
2361 * New function `strncasecmp' to do case-insensitive string comparison
2362 with limited length.
2364 * New function `strsep' is a reentrant alternative to `strtok'.
2366 * New functions `scandir' and `alphasort' for searching directories.
2368 * New function `setenv' is a better interface to `putenv'.
2370 * Ian Lance Taylor has contributed an implementation of the SVID `ftw'
2371 function for traversing a directory tree.
2373 * The GNU obstack package is now also part of the C library.
2374 The new function `open_obstack_stream' creates a stdio stream that
2375 writes onto an obstack; `obstack_printf' and `obstack_vprintf' do
2376 formatted output directly to an obstack.
2378 * Miscellaneous new functions: reboot, nice, sigaltstack (4.4 BSD only),
2379 cfmakeraw, getusershell, getpass, swab, getttyent, seteuid, setegid.
2381 * `FNM_FILE_NAME' is another name for `FNM_PATHNAME', used with `fnmatch'.
2383 * The new functions `strfry' and `memfrob' do mysterious and wonderful
2384 things to your strings.
2386 * There are some new test programs: test-fseek, testmb, and testrand.
2388 * Some work has been done to begin porting the library to 4.4 BSD and Linux.
2389 These ports are not finished, but are a good starting place for really
2390 supporting those systems.
2392 * `/etc/localtime' is now the standard location for the file that says what
2393 the local timezone is, rather than `/usr/local/lib/zoneinfo/localtime'.
2394 This follows the general principle that `/etc' is the place for all local
2395 configuration files.
2397 * The C library header files now use `extern "C"' when used by the C++
2398 compiler, so the C library should now work with C++ code.
2400 * The header file <bstring.h> is gone. <string.h> now declares bcopy,
2401 bcmp, bzero, and ffs. (Update: nowadays these functions are declared
2402 in <strings.h>.)
2404 * Mike Haertel (of GNU e?grep and malloc fame) has written a new sorting
2405 function which uses the `merge sort' algorithm, and is said to be
2406 significantly faster than the old GNU `qsort' function. Merge sort is
2407 now the standard `qsort' function. The new algorithm can require a lot
2408 of temporary storage; so, the old sorting function is called when the
2409 required storage is not available.
2411 * The C library now includes Michael Glad's Ultra Fast Crypt, which
2412 provides the Unix `crypt' function, plus some other entry points.
2414 * The code and header files taken from 4.4 BSD have been updated with the
2415 latest files released from Berkeley.
2416 \f
2417 ----------------------------------------------------------------------
2418 Copyright information:
2420 Copyright (C) 1992-2014 Free Software Foundation, Inc.
2422 Permission is granted to anyone to make or distribute verbatim copies
2423 of this document as received, in any medium, provided that the
2424 copyright notice and this permission notice are preserved,
2425 thus giving the recipient permission to redistribute in turn.
2427 Permission is granted to distribute modified versions
2428 of this document, or of portions of it,
2429 under the above conditions, provided also that they
2430 carry prominent notices stating who last changed them.
2431 \f
2432 Local variables:
2433 version-control: never
2434 fill-column: 76
2435 End: