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1 GNU C Library NEWS -- history of user-visible changes.
2 Copyright (C) 1992-2013 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 2.19
10 * The following bugs are resolved with this release:
12 156, 387, 431, 832, 926, 2801, 4772, 6786, 6787, 6807, 6810, 7003, 9954,
13 10253, 10278, 11087, 11157, 11214, 12100, 12486, 13028, 13982, 13985,
14 14029, 14032, 14120, 14143, 14155, 14547, 14699, 14752, 14876, 14910,
15 15004, 15048, 15089, 15218, 15268, 15277, 15308, 15362, 15374, 15400,
16 15425, 15427, 15483, 15522, 15531, 15532, 15593, 15601, 15608, 15609,
17 15610, 15632, 15640, 15670, 15672, 15680, 15681, 15723, 15734, 15735,
18 15736, 15748, 15749, 15754, 15760, 15763, 15764, 15797, 15799, 15825,
19 15843, 15844, 15847, 15849, 15855, 15856, 15857, 15859, 15867, 15886,
20 15887, 15890, 15892, 15893, 15895, 15897, 15901, 15905, 15909, 15915,
21 15917, 15919, 15921, 15923, 15939, 15941, 15948, 15963, 15966, 15985,
22 15988, 15997, 16032, 16034, 16036, 16037, 16038, 16041, 16055, 16071,
23 16072, 16074, 16077, 16078, 16103, 16112, 16143, 16144, 16146, 16150,
24 16151, 16153, 16167, 16172, 16195, 16214, 16245, 16271, 16274, 16283,
25 16289, 16316, 16330.
27 * The public headers no longer use __unused nor __block. This change is to
28 support compiling programs that are derived from BSD sources and use
29 __unused internally, and to support compiling with Clang's -fblock
30 extension which uses __block.
32 * CVE-2012-4412 The strcoll implementation caches indices and rules for
33 large collation sequences to optimize multiple passes. This cache
34 computation may overflow for large collation sequences and may cause a
35 stack or buffer overflow. This is now fixed to use a slower algorithm
36 which does not use a cache if there is an integer overflow.
38 * CVE-2012-4424 The strcoll implementation uses malloc to cache indices and
39 rules for large collation sequences to optimize multiple passes and falls
40 back to alloca if malloc fails, resulting in a possible stack overflow.
41 The implementation now falls back to an uncached collation sequence lookup
42 if malloc fails.
44 * CVE-2013-4788 The pointer guard used for pointer mangling was not
45 initialized for static applications resulting in the security feature
46 being disabled. The pointer guard is now correctly initialized to a
47 random value for static applications. Existing static applications need
48 to be recompiled to take advantage of the fix (bug 15754).
50 * CVE-2013-4237 The readdir_r function could write more than NAME_MAX bytes
51 to the d_name member of struct dirent, or omit the terminating NUL
52 character. (Bugzilla #14699).
54 * CVE-2013-4332 The pvalloc, valloc, memalign, posix_memalign and
55 aligned_alloc functions could allocate too few bytes or corrupt the
56 heap when passed very large allocation size values (Bugzilla #15855,
57 #15856, #15857).
59 * CVE-2013-4458 Stack overflow in getaddrinfo with large number of results
60 for AF_INET6 has been fixed (Bugzilla #16072).
62 * New locales: ak_GH, anp_IN, ar_SS, cmn_TW, hak_TW, lzh_TW, nan_TW, pap_AW,
63 pap_CW, quz_PE, the_NP.
65 * Substantially revised locales: gd_GB, ht_HT
67 * The LC_ADDRESS field was updated to support country_car for almost all
68 supported locales.
70 * ISO 1427 definitions were updated.
72 * ISO 3166 definitions were updated.
74 * The localedef utility now supports --big-endian and --little-endian
75 command-line options to generate locales for a different system from that
76 for which the C library was built.
78 * Binary locale files now only depend on the endianness of the system for
79 which they are generated and not on other properties of that system. As a
80 consequence, binary files generated with new localedef may be incompatible
81 with old versions of the GNU C Library, and binary files generated with
82 old localedef may be incompatible with this version of the GNU C Library,
83 in the following circumstances:
85 + Locale files may be incompatible on m68k systems.
87 + Locale archive files (but not separate files for individual locales) may
88 be incompatible on systems where plain "char" is signed.
90 * The configure option --disable-versioning has been removed. Builds with
91 --disable-versioning had not worked for several years.
93 * ISO 639 definitions were updated for Chiga (cgg) and Chinese (gan, hak, czh,
94 cjy, lzh, cmn, mnp, cdo, czo, cpx, wuu, hsn, yue).
96 * SystemTap probes for malloc have been introduced.
98 * Support for powerpc64le has been added.
100 * The soft-float powerpc port now supports e500 processors.
102 * Support for STT_GNU_IFUNC symbols added for ppc32/power4+ and ppc64.
103 \f
104 Version 2.18
106 * The following bugs are resolved with this release:
108 2546, 2560, 5159, 6809, 7006, 10060, 10062, 10283, 10357, 10686, 11120,
109 11561, 12310, 12387, 12492, 12515, 12723, 13550, 13889, 13951, 13988,
110 14142, 14176, 14200, 14256, 14280, 14293, 14317, 14327, 14478, 14496,
111 14582, 14686, 14812, 14888, 14894, 14907, 14908, 14909, 14920, 14952,
112 14964, 14981, 14982, 14985, 14991, 14994, 14996, 15000, 15003, 15006,
113 15007, 15014, 15020, 15022, 15023, 15036, 15054, 15055, 15062, 15078,
114 15084, 15085, 15086, 15100, 15160, 15214, 15221, 15232, 15234, 15283,
115 15285, 15287, 15304, 15305, 15307, 15309, 15327, 15330, 15335, 15336,
116 15337, 15339, 15342, 15346, 15359, 15361, 15366, 15380, 15381, 15394,
117 15395, 15405, 15406, 15409, 15416, 15418, 15419, 15423, 15424, 15426,
118 15429, 15431, 15432, 15441, 15442, 15448, 15465, 15480, 15485, 15488,
119 15490, 15492, 15493, 15497, 15506, 15529, 15536, 15553, 15577, 15583,
120 15618, 15627, 15631, 15654, 15655, 15666, 15667, 15674, 15711, 15755,
121 15759.
123 * CVE-2013-2207 Incorrectly granting access to another user's pseudo-terminal
124 has been fixed by disabling the use of pt_chown (Bugzilla #15755).
125 Distributions can re-enable building and using pt_chown via the new configure
126 option `--enable-pt_chown'. Enabling the use of pt_chown carries with it
127 considerable security risks and should only be used if the distribution
128 understands and accepts the risks.
130 * CVE-2013-0242 Buffer overrun in regexp matcher has been fixed (Bugzilla
131 #15078).
133 * CVE-2013-1914 Stack overflow in getaddrinfo with many results has been
134 fixed (Bugzilla #15330).
136 * Add support for calling C++11 thread_local object destructors on thread
137 and program exit. This needs compiler support for offloading C++11
138 destructor calls to glibc.
140 * Improved worst case performance of libm functions with double inputs and
141 output.
143 * Support for priority inherited mutexes in pthread condition variables on
144 non-x86 architectures.
146 * Port to Xilinx MicroBlaze contributed by David Holsgrove.
148 * Optimized string functions for AArch64. Implemented by Marcus Shawcroft.
150 * Optimized string functions for ARM. Implemented by Will Newton and
151 Richard Henderson.
153 * Optimized libm functions for SPARC. Implemented by David S. Miller.
155 * Support for building more of ARM glibc as Thumb-2 code. Implemented by
156 Richard Henderson.
158 * Support for building most of MIPS glibc as MIPS16 code. Implemented by
159 Chung-Lin Tang, Maciej W. Rozycki and Maxim Kuvyrkov.
161 * Added a benchmark framework to track performance of functions in glibc.
163 * New <math.h> macro named issignaling to check for a signaling NaN (sNaN).
164 It is based on draft TS 18661 and currently enabled as a GNU extension.
166 * On Linux, the clock function now uses the clock_gettime system call
167 for improved precision, rather than old times system call.
169 * Added new API functions pthread_getattr_default_np and
170 pthread_setattr_default_np to get and set the default pthread
171 attributes of a process.
173 * Added support for TSX lock elision for pthread mutexes on i386 and x86-64.
174 This may improve lock scaling of existing programs on TSX capable systems.
175 When the --enable-lock-elision=yes parameter is specified at configure
176 time lock elision will be enabled by default for all PTHREAD_MUTEX_DEFAULT
177 mutexes.
179 * Support added for AT_HWCAP2 (to coincide with Linux kernel 3.10
180 availability). Implemented by Ryan S. Arnold.
182 * Support added for POWER8 platform. Implemented by Ryan S. Arnold.
183 \f
184 Version 2.17
186 * The following bugs are resolved with this release:
188 1349, 3439, 3479, 3665, 5044, 5246, 5298, 5400, 6530, 6677, 6778, 6808,
189 9685, 9914, 10014, 10038, 10114, 10191, 10631, 10873, 11438, 11607, 11638,
190 11741, 12140, 13013, 13412, 13542, 13601, 13603, 13604, 13629, 13679,
191 13696, 13698, 13717, 13741, 13759, 13761, 13763, 13881, 13939, 13950,
192 13952, 13966, 14042, 14047, 14090, 14150, 14151, 14152, 14154, 14157,
193 14166, 14173, 14195, 14197, 14237, 14246, 14251, 14252, 14283, 14298,
194 14303, 14307, 14328, 14331, 14336, 14337, 14347, 14349, 14368, 14376,
195 14417, 14447, 14459, 14476, 14477, 14501, 14505, 14510, 14516, 14518,
196 14519, 14530, 14532, 14538, 14543, 14544, 14545, 14557, 14562, 14568,
197 14576, 14579, 14583, 14587, 14595, 14602, 14610, 14621, 14638, 14645,
198 14648, 14652, 14660, 14661, 14669, 14672, 14683, 14694, 14716, 14719,
199 14743, 14767, 14783, 14784, 14785, 14793, 14796, 14797, 14801, 14803,
200 14805, 14807, 14811, 14815, 14821, 14822, 14824, 14828, 14831, 14833,
201 14835, 14838, 14856, 14863, 14865, 14866, 14868, 14869, 14871, 14872,
202 14879, 14889, 14893, 14898, 14914.
204 * Optimization of memcpy for MIPS.
206 * CVE-2011-4609 svc_run() produces high cpu usage when accept fails with
207 EMFILE has been fixed (Bugzilla #14889).
209 * The add-on ports collection is now distributed in the "ports" subdirectory
210 of the main GNU C Library distribution, rather than separately.
212 * Port to ARM AArch64 contributed by Linaro.
214 * Support for STT_GNU_IFUNC symbols added for s390 and s390x.
215 Optimized versions of memcpy, memset, and memcmp added for System z10 and
216 zEnterprise z196.
217 Implemented by Andreas Krebbel.
219 * The new function secure_getenv allows secure access to the environment,
220 returning NULL if running in a SUID/SGID process. This function replaces
221 the internal function __secure_getenv.
223 * SystemTap static probes have been added into the dynamic linker.
224 Implemented by Gary Benson.
226 * Optimizations of string functions strstr, strcasestr and memmem.
227 Implemented by Maxim Kuvyrkov.
229 * The minimum Linux kernel version that this version of the GNU C Library
230 can be used with is 2.6.16.
232 * Optimizations of string functions memchr, wcschr, wcscpy, and wcsrchr for
233 powerpc POWER7. Implemented by Will Schmidt.
235 * New configure option --disable-nscd builds the C library such that it
236 never attempts to contact the Name Service Caching Daemon (nscd).
237 New configure option --disable-build-nscd avoids building nscd itself;
238 this is the default if --disable-nscd is used.
240 * Improved support for cross-compilation, including cross-testing and
241 bootstrap builds without a previously built glibc.
243 * Several testsuite tests are now able to test multiple IFUNC variants of an
244 interface, rather than just testing the one that would be chooen by
245 default.
247 * New configure options --with-bugurl and --with-pkgversion, for
248 distributors to use to embed their bug-reporting and package version
249 information in --help and --version output.
251 * The ttyname and ttyname_r functions on Linux now fall back to searching for
252 the tty file descriptor in /dev/pts or /dev if /proc is not available. This
253 allows creation of chroots without the procfs mounted on /proc.
255 * The `crypt' function now fails if passed salt bytes that violate the
256 specification for those values. On Linux, the `crypt' function will
257 consult /proc/sys/crypto/fips_enabled to determine if "FIPS mode" is
258 enabled, and fail on encrypted strings using the MD5 or DES algorithm
259 when the mode is enabled.
261 * The `clock_*' suite of functions (declared in <time.h>) is now available
262 directly in the main C library. Previously it was necessary to link with
263 -lrt to use these functions. This change has the effect that a
264 single-threaded program that uses a function such as `clock_gettime' (and
265 is not linked with -lrt) will no longer implicitly load the pthreads
266 library at runtime and so will not suffer the overheads associated with
267 multi-thread support in other code such as the C++ runtime library.
269 * New locales: ayc_PE, doi_IN, ia_FR, mni_IN, nhn_MX, niu_NU, niu_NZ,
270 sat_IN, and szl_PL.
271 \f
272 Version 2.16
274 * The following bugs are resolved with this release:
276 174, 208, 350, 369, 411, 706, 766, 887, 2074, 2541, 2547, 2548, 2550,
277 2551, 2552, 2553, 2554, 2562, 2563, 2565, 2566, 2570, 2576, 2636, 2678,
278 3335, 3440, 3748, 3768, 3866, 3868, 3906, 3976, 3992, 4026, 4108, 4596,
279 4822, 5077, 5461, 5805, 5993, 6471, 6486, 6578, 6649, 6730, 6770, 6794,
280 6884, 6890, 6894, 6895, 6907, 6911, 6959, 7064, 9739, 9902, 10110, 10135,
281 10140, 10153, 10210, 10254, 10346, 10375, 10545, 10716, 10846, 11174,
282 11261, 11322, 11365, 11451, 11494, 11521, 11677, 11837, 11959, 12047,
283 12097, 12193, 12194, 12297, 12298, 12301, 12340, 12354, 12416, 12495,
284 13058, 13223, 13361, 13525, 13526, 13527, 13528, 13529, 13530, 13531,
285 13532, 13533, 13547, 13551, 13552, 13553, 13555, 13556, 13559, 13563,
286 13566, 13576, 13579, 13583, 13592, 13594, 13613, 13618, 13637, 13656,
287 13658, 13673, 13691, 13695, 13704, 13705, 13706, 13718, 13726, 13738,
288 13739, 13743, 13750, 13758, 13760, 13761, 13775, 13786, 13787, 13792,
289 13806, 13824, 13840, 13841, 13844, 13846, 13848, 13851, 13852, 13854,
290 13871, 13872, 13873, 13879, 13882, 13883, 13884, 13885, 13886, 13892,
291 13895, 13908, 13910, 13911, 13912, 13913, 13914, 13915, 13916, 13917,
292 13918, 13919, 13920, 13921, 13922, 13923, 13924, 13926, 13927, 13928,
293 13938, 13941, 13942, 13954, 13955, 13956, 13963, 13967, 13968, 13970,
294 13973, 13979, 13983, 13986, 13996, 14012, 14027, 14033, 14034, 14036,
295 14040, 14043, 14044, 14048, 14049, 14050, 14053, 14055, 14059, 14064,
296 14075, 14080, 14083, 14103, 14104, 14109, 14112, 14117, 14122, 14123,
297 14134, 14153, 14183, 14188, 14199, 14210, 14218, 14229, 14241, 14273,
298 14277, 14278.
300 * Support for the x32 ABI on x86-64 added. The x32 target is selected by
301 configuring glibc with:
302 BUILD_CC='gcc' CC='gcc -mx32' CXX='g++ -mx32'
303 Visit <http://sites.google.com/site/x32abi/> for more x32 ABI info.
304 Implemented by H.J. Lu.
306 * ISO C11 support:
308 + define static_assert
310 + do not declare gets
312 + declare at_quick_exit and quick_exit also for ISO C11
314 + aligned_alloc. NB: The code is deliberately allows the size parameter
315 to not be a multiple of the alignment. This is a moronic requirement
316 in the standard but it is only a requirement on the caller, not the
317 implementation.
319 + timespec_get added
321 + uchar.h support added
323 + CMPLX, CMPLXF, CMPLXL added
325 Implemented by Ulrich Drepper.
327 * Support for the IA-64 has been moved to ports.
329 * Remove support for anything but ELF binary format
331 * Checking versions of poll, ppoll added.
332 Implemented by Ulrich Drepper.
334 * More generic and 64-bit performance optimizations to math functions.
335 Implemented by Ulrich Drepper.
337 * New configure option --enable-obsolete-rpc makes the deprecated RPC
338 headers and functions available at compile time as they were before
339 version 2.14. This option will be removed at some time in the future
340 after the TI-RPC library becomes fully sufficient for the needs of
341 existing applications.
343 * Compatibility code for Linux kernel versions before 2.4 has been removed.
344 Note that glibc is not expected to work with any Linux kernel version
345 before 2.6.
347 * New header <sys/auxv.h> and function getauxval allowing easy access to
348 the AT_* key-value pairs passed from the Linux kernel. The header also
349 defines the HWCAP_* bits associated with the AT_HWCAP key.
351 * New locales: mag_IN
353 * New configure option --enable-systemtap builds SystemTap static probes
354 into libc for setjmp and longjmp and into libpthread for various operations.
355 So far the setjmp/longjmp probes and some of the libpthread probes are
356 provided only for i*86 and x86_64.
357 Implemented by Roland McGrath and Rayson Ho.
359 * Optimized expf for x86-32 and x86-64. Implemented by Liubov Dmitrieva.
361 * More optimized functions for PowerPC. Implemented by Adhemerval Zanella
362 and Will Schmidt.
364 * More optimized functions for SPARC. Implemented by David S. Miller.
366 * Improved support for cross-compilation, especially bootstrap builds
367 without a previously built glibc.
369 * Ports for the TILE-Gx and TILEPro families of processors. Contributed by
370 Chris Metcalf from Tilera.
372 * Support for the old ARM ABI has been removed from ports. Only the EABI is
373 now supported for ARM processors.
375 * The hard-float variant of the ARM EABI now uses /lib/ld-linux-armhf.so.3
376 as the name of the dynamic linker, to distinguish it from the
377 /lib/ld-linux.so.3 dynamic linker used for the base EABI.
379 * Support for CRIS has been removed from ports.
381 * A new class of installed header has been documented for low-level
382 platform-specific functionality. PowerPC added the first instance with a
383 function to provide time base register access. Contributed by Tulio
384 Magno Quites Machado Filho.
386 * ix86 configurations now install header files that are consistent with
387 what x86-64 configurations install. These same header files can be used
388 for -m32, -m64, or -mx32 builds.
389 Contributed by H.J. Lu.
391 * Math library bug fixes. A thorough audit of all open math library bugs was
392 conducted by Joseph Myers. Significant progress was made on many math
393 library bugs resulting in more accurate exceptions and function results.
394 Many thanks to all those that contributed including Andreas Jaeger for his
395 patch review and work on the x87 trigonometric instruction issues.
397 * Timezone data is no longer installed. Timezone-related binaries and scripts
398 will continue to be installed. Users should obtain their timezone data from
399 their distribution provider or from the tzdata package at
400 <ftp://munnari.oz.au/pub/>.
401 \f
402 Version 2.15
404 * The following bugs are resolved with this release:
406 6779, 6783, 9696, 10103, 10709, 11589, 11929, 12403, 12786, 12840, 12847,
407 12868, 12852, 12874, 12885, 12892, 12906, 12907, 12922, 12935, 12962,
408 13007, 13021, 13061, 13062, 13067, 13068, 13085, 13088, 13090, 13092,
409 13096, 13114, 13118, 13123, 13134, 13138, 13147, 13150, 13166, 13179,
410 13185, 13189, 13192, 13268, 13276, 13282, 13291, 13305, 13328, 13335,
411 13337, 13344, 13358, 13367, 13413, 13416, 13423, 13439, 13446, 13472,
412 13484, 13506, 13515, 13523, 13524, 13538, 13540
414 * New program pldd to list loaded object of a process
415 Implemented by Ulrich Drepper.
417 * Add nss_db support back to glibc. No more dependency on Berkeley db
418 and support for initgroups lookups.
419 Implemented by Ulrich Drepper.
421 * Optimized strcpy, strncpy, stpcpy, stpncpy for SSE2 and SSSE3 on x86-32.
422 Contributed by HJ Lu.
424 * Improved strcpy, strncpy, stpcpy, stpncpy for SSE2 and SSSE3 on x86-64.
425 Contributed by HJ Lu.
427 * Optimized strcat, strncat on x86-64 and optimized wcscmp, wcslen, strnlen
428 on x86-32 and x86-64.
429 Contributed by Liubov Dmitrieva.
431 * Optimized strchr and strrchr for SSE on x86-32.
432 Contributed by Liubov Dmitrieva.
434 * Optimized memchr, memrchr, rawmemchr, memcmp, wmemcmp, wcschr, wcscpy
435 for x86-64 and x86-32.
436 Contributed by Liubov Dmitrieva.
438 * New interfaces: scandirat, scandirat64
439 Implemented by Ulrich Drepper.
441 * Checking versions of FD_SET, FD_CLR, and FD_ISSET added.
442 Implemented by Ulrich Drepper.
444 * nscd now also caches the netgroup database.
445 Implemented by Ulrich Drepper.
447 * Integrate libm with gcc's -ffinite-math-only option.
448 Implemented by Ulrich Drepper.
450 * Lots of generic, 64-bit, and x86-64-specific performance optimizations
451 to math functions. Implemented by Ulrich Drepper.
453 * Optimized strcasecmp and strncasecmp for AVX on x86-64.
454 Implemented by Ulrich Drepper.
456 * New Linux interfaces: process_vm_readv, process_vm_writev
458 * Optimized strcasecmp and strncasecmp for SSSE3 and SSE4.2 on x86-32.
459 Implemented by Ulrich Drepper.
461 * Optimized nearbyint and strcasecmp for PPC.
462 Implemented by Adhemerval Zanella.
464 * New locales: bho_IN, unm_US, es_CU, ta_LK
465 \f
466 Version 2.14
468 * The following bugs are resolved with this release:
470 386, 6420, 7101, 9730, 9732, 9809, 10138, 10149, 10157, 11099, 11257,
471 11258, 11487, 11532, 11558, 11578, 11634, 11653, 11668, 11697, 11724,
472 11781, 11799, 11820, 11837, 11857, 11869, 11892, 11895, 11901, 11945,
473 11947, 11952, 11987, 12052, 12083, 12158, 12178, 12200, 12346, 12350,
474 12393, 12420, 12432, 12445, 12449, 12453, 12454, 12460, 12469, 12489,
475 12509, 12510, 12511, 12518, 12527, 12541, 12545, 12551, 12582, 12583,
476 12587, 12597, 12601, 12611, 12625, 12626, 12631, 12650, 12653, 12655,
477 12660, 12671, 12681, 12684, 12685, 12711, 12713, 12714, 12717, 12723,
478 12724, 12734, 12738, 12746, 12766, 12775, 12777, 12782, 12788, 12792,
479 12795, 12811, 12813, 12814, 12841
481 * The RPC implementation in libc is obsoleted. Old programs keep working
482 but new programs cannot be linked with the routines in libc anymore.
483 Programs in need of RPC functionality must be linked against TI-RPC.
484 The TI-RPC implementation is IPv6 enabled and there are other benefits.
486 Visible changes of this change include (obviously) the inability to link
487 programs using RPC functions without referencing the TI-RPC library and the
488 removal of the RPC headers from the glibc headers.
489 Implemented by Ulrich Drepper.
491 * New Linux interfaces: clock_adjtime, name_to_handle_at, open_by_handle_at,
492 syncfs, setns, sendmmsg
494 * New locales: os_RU, bem_ZA, en_ZA, ff_SN, sw_KE, sw_TZ, lb_LU, wae_CH,
495 yue_HK, lij_IT, mhr_RU
497 * New encodings: CP770, CP771, CP772, CP773, CP774
499 * New program sotruss to trace calls through PLTs
500 Implemented by Ulrich Drepper.
502 * The malloc hook implementation is marked deprecated and will be removed
503 from the default implementation in the next version. The design never
504 worked ever since the introduction of threads. Even programs which do
505 not create threads themselves can use multiple threads created internally.
506 \f
507 Version 2.13
509 * The following bugs are resolved with this release:
511 3268, 6812, 7066, 10085, 10484, 10563, 10851, 11149, 11155, 11577, 11611,
512 11640, 11655, 11701, 11840, 11856, 11883, 11903, 11904, 11968, 11979,
513 12005, 12037, 12067, 12077, 12078, 12092, 12093, 12107, 12108, 12113,
514 12140, 12159, 12167, 12191, 12194, 12201, 12204, 12205, 12207, 12348,
515 12378, 12394, 12397
517 * New Linux interfaces: prlimit, prlimit64, fanotify_init, fanotify_mark
519 * POWER7 optimizations: memset, memcmp, strncmp
521 * New optimized string functions for x86-64: strnlen (SSE2),
522 strcasecmp (SSE2, SSSE3, SSE4.2), strncasecmp (SSE2, SSSE3, SSE4.2)
523 Implemented by Ulrich Drepper.
524 \f
525 Version 2.12
527 * The following bugs are resolved with this release:
529 3662, 4457, 5553, 10162, 10401, 10414, 10554, 10824, 10864, 10915,
530 10918, 10936, 10939, 10958, 10968, 10969, 10972, 10992, 11000, 11001,
531 11007, 11010, 11027, 11039, 11040, 11041, 11043, 11046, 11056, 11070,
532 11093, 11115, 11125, 11126, 11127, 11134, 11141, 11149, 11183, 11184,
533 11185, 11186, 11187, 11188, 11189, 11190, 11191, 11192, 11193, 11194,
534 11200, 11230, 11235, 11242, 11254, 11258, 11271, 11272, 11276, 11279,
535 11287, 11292, 11319, 11332, 11333, 11387, 11389, 11390, 11394, 11397,
536 11410, 11438, 11449, 11470, 11471, 11520, 11537, 11538, 11571
538 * New interfaces: pthread_getname_np, pthread_setname_np
540 * New Linux interface: recvmmsg
542 * STT_GNU_IFUNC implemented for Sparc by David Miller.
544 * The dynamic linker now recognizes supported ABI versions from the
545 EI_ABIVERSION field in the ELF header.
546 Implemented by Ulrich Drepper.
548 * New NIS mode selector ADJUNCT_AS_SHADOW. The passwd.adjunct.byname table
549 will not be used to fill in password fields in the passwd.byname replies.
550 Instead it is used to synthesize the shadow.byname table, should it be
551 missing. This is a useful mode in some installations involving Solaris.
552 Implemented by Ulrich Drepper.
554 * New locales: kok_IN, sq_MK, cv_RU
555 \f
556 Version 2.11
558 * The following bugs are resolved with this release:
560 3270, 7094, 9924, 9986, 10011, 10085, 10107, 10159, 10162, 10166, 10183,
561 10195, 10196, 10200, 10203, 10207, 10211, 10213, 10217, 10221, 10229,
562 10262, 10286, 10312, 10315, 10319, 10349, 10360, 10391, 10402, 10416,
563 10418, 10422, 10425, 10446, 10448, 10452, 10540, 10553, 10560, 10564,
564 10609, 10643, 10692, 10713, 10717, 10730, 10731, 10742, 10780, 10784,
565 10789, 10817, 10823, 10840, 10847
567 * New interfaces: execvpe, pthread_sigqueue, mkstemps, mkstemps64, mkostemps,
568 mkostemps64
569 Implemented by Ulrich Drepper.
571 * Checking version of longjmp added that fails if an uninitialized stack
572 frame would be created. Implemented by Ulrich Drepper.
574 * STT_GNU_IFUNC is now supported in static executables.
575 Implemented by H.J. Lu.
577 * STT_GNU_IFUNC implemented for PPC by Alan Modra.
579 * New optimized string functions for x86-64: strstr, strcasestr, memcmp,
580 strcspn, strpbrk, strspn, strcpy, stpcpy, strncpy, strcmp (SSE2, SSE4.2),
581 strncmp (SSE2, SSE4.2), strchr (SSE4.2), strrchr (SSE4.2).
582 Contributed by H.J. Lu.
584 strlen, rawmemchr, strcmp (SSSE3), strncmp (SSSE3).
585 Implemented by Ulrich Drepper.
587 * New optimized string functions for x86: strlen, strcspn, strspn, strpbrk,
588 strstr, strcasestr.
589 Contributed by H.J. Lu.
591 * Support for fma instruction in AVX on x86-64.
592 Implemented by H.J. Lu and Ulrich Drepper.
594 * AVX support in x86-64 auditing support in ld.so.
595 Implemented by H.J. Lu.
597 * STB_GNU_UNIQUE support added.
598 Implemented by Ulrich Drepper.
600 * Implement second fallback mode for optimized DNS lookup for even more
601 broken environments. If two requests from the same port are not
602 handled correctly close the socket and open a new one before sending
603 the second request. The 'single-request-reopen' option in /etc/resolv.conf
604 can be used to select this mode right away, instead of rediscovering the
605 necessity is every process again.
606 Implemented by Ulrich Drepper.
608 * New resolver flag RES_USE_DNSSEC to enable use of verified lookup.
609 Implemented by Adam Tkac.
611 * Optimized iconv conversions for S390x.
612 Implemented by Andreas Krebbel.
614 * Using condvars with PI mutexes is now more efficient due to kernel
615 support for requeueing to PI futexes. NPTL support added for x86-64.
616 Implemented by Ulrich Drepper.
618 * New locales: ps_AF, my_MM
619 \f
620 Version 2.10
622 * The following bugs are resolved with this release:
624 697, 5381, 5807, 6411, 6545, 7040, 7058, 7067, 7080, 7083, 7095, 7098,
625 9677, 9694, 9697, 9701, 9704, 9705, 9706, 9720, 9726, 9730, 9733, 9736,
626 9741, 9750, 9753, 9759, 9781, 9791, 9793, 9823, 9833, 9844, 9880, 9881,
627 9891, 9893, 9895, 9913, 9916, 9920, 9948, 9955, 9957, 9963, 9985, 10052,
628 10069, 10086, 10087, 10090, 10092, 10093, 10100, 10118, 10128
630 * New interfaces: preadv, preadv64, pwritev, pwritev64, malloc_info
631 Implemented by Ulrich Drepper.
633 * New Linux interfaces: accept4, fallocate, fallocate64.
634 Implemented by Ulrich Drepper.
636 * Correct declarations of string function when used in C++ code. This
637 could lead to compile errors for invalid C++ code.
639 * XPG7/POSIX 2008 compilation environment. Many GNU-specific functions are
640 now in POSIX.
642 * New POSIX 2008 interface: psiginfo
643 Implemented by Ulrich Drepper.
645 * New ISO C++1x interfaces: quick_exit, at_quick_exit
646 Implemented by Ulrich Drepper.
648 * Support for selecting between multiple function definitions at runtime
649 using STT_GNU_IFUNC symbols. Implemented by Ulrich Drepper.
651 * The libcrypt library can now use the hash function implementations in
652 NSS. Implemented by Ulrich Drepper.
654 * The malloc implementation can be compiled to be less memory efficient
655 but higher performing in multi-threaded programs.
656 Implemented by Ulrich Drepper.
658 * New locales: nan_TW@latin, ks_IN
660 * Faster strlen, strchr, strchrnul, strrchr, memchr, and rawmemchr for x86-64.
661 Implemented by Ulrich Drepper.
663 * Extended printf hook support. It is possible to use user-defined types
664 and extend existing format specifiers.
665 Implemented by Ulrich Drepper.
667 * Handling for group shadow files has been added.
668 Implemented by Ulrich Drepper.
670 * DNS IPv4-IPv6 parallel lookup now deals better with broken DNS
671 servers (the case, e.g., for some people using the built-in DNS
672 server in ADSL modems/routers). There is a once-per-process timeout
673 in case of a broken server. To avoid it, users can run nscd or put
674 'options single-request' in /etc/resolv.conf.
675 Implemented by Ulrich Drepper.
676 \f
677 Version 2.9
679 * The following bugs are resolved with this release:
681 3406, 5209, 5210, 5381, 5794, 5814, 5911, 6428, 6438, 6442, 6447, 6461,
682 6472, 6505, 6544, 6589, 6612, 6634, 6653, 6654, 6657, 6698, 6712, 6713,
683 6719, 6723, 6724, 6740, 6763, 6771, 6790, 6791, 6817, 6824, 6839, 6843,
684 6845, 6856, 6857, 6860, 6867, 6875, 6919, 6920, 6942, 6947, 6955, 6966,
685 6968, 6974, 6980, 6995, 7008, 7009, 7029
687 * Unified lookup for getaddrinfo: IPv4 and IPv6 addresses are now looked
688 up at the same time. Implemented by Ulrich Drepper.
690 * TLS descriptors for LD and GD on x86 and x86-64.
691 Implemented by Alexandre Oliva.
693 * getaddrinfo now handles DCCP and UDPlite.
694 Implemented by Ulrich Drepper.
696 * New fixed-size conversion macros: htobe16, htole16, be16toh, le16toh,
697 htobe32, htole32, be32toh, le32toh, htobe64, htole64, be64toh, le64toh.
698 Implemented by Ulrich Drepper.
700 * New implementation of memmem, strstr, and strcasestr which is O(n).
701 Implemented by Eric Blake.
703 * New Linux interfaces: inotify_init1, dup3, epoll_create1, pipe2
705 * Implement "e" option for popen to open file descriptor with the
706 close-on-exec flag set. Implemented by Ulrich Drepper.
708 * Implement "b" mode for fmemopen. In this mode writes writes don't
709 implicitly add a NUL byte and seeks from the end of the buffer really
710 use the buffer end, not the string length as the basis.
711 Implemented by Ulrich Drepper.
713 * Many functions, exported and internal, now atomically set the close-on-exec
714 flag when run on a sufficiently new kernel. Implemented by Ulrich Drepper.
716 * Sorting rules for some Indian languages (Kannada, Gurumukhi, Telugu,
717 Sinhala)
718 Implemented by Pravin Satpute.
720 * New locales: sd_IN, sd_IN@devanagari, ks_IN@devanagari, ht_HT, en_AG, nl_AW.
721 \f
722 Version 2.8
724 * The following bugs are resolved with this release:
726 2549, 3112, 4314, 4407, 4997, 5012, 5040, 5112, 5204, 5208, 5209, 5220,
727 5222, 5224, 5225, 5237, 5238, 5240, 5245, 5277, 5346, 5375, 5378, 5382,
728 5424, 5427, 5428, 5435, 5436, 5439, 5441, 5442, 5443, 5451, 5452, 5454,
729 5455, 5463, 5464, 5465, 5475, 5477, 5478, 5520, 5541, 5545, 5553, 5600,
730 5602, 5607, 5614, 5627, 5628, 5736, 5737, 5741, 5753, 5760, 5762, 5768,
731 5774, 5777, 5778, 5779, 5786, 5790, 5818, 5854, 5857, 5903, 5939, 5979,
732 5983, 5995, 5998, 6004, 6007, 6020, 6021, 6024, 6040, 6042
734 * New locales: bo_CN, bo_IN, shs_CA.
736 * New encoding: HP-ROMAN9, HP-GREEK8, HP-THAI8, HP-TURKISH8.
738 * Sorting rules for some Indian languages (Devanagari and Gujarati).
739 Implemented by Pravin Satpute.
741 * IPV6 addresses in /etc/resolv.conf can now have a scope ID
743 * nscd caches now all timeouts for DNS entries
744 Implemented by Ulrich Drepper.
746 * nscd is more efficient and wakes up less often.
747 Implemented by Ulrich Drepper.
749 * More checking functions: asprintf, dprintf, obstack_printf, vasprintf,
750 vdprintf, and obstack_vprintf.
751 Implemented by Jakub Jelinek.
753 * Faster memset for x86-64.
754 Implemented by Harsha Jagasia and H.J. Lu.
756 * Faster memcpy on x86.
757 Implemented by Ulrich Drepper.
759 * ARG_MAX is not anymore constant on Linux. Use sysconf(_SC_ARG_MAX).
760 Implemented by Ulrich Drepper.
762 * Faster sqrt and sqrtf implemention for some PPC variants.
763 Implemented by Steven Munroe.
764 \f
765 Version 2.7
767 * The following bugs are resolved with this release:
769 4125, 4126, 4178, 4359, 4407, 4512, 4514, 4525, 4554, 4556, 4557, 4566,
770 4582, 4586, 4588, 4599, 4610, 4647, 4702, 4705, 4726, 4745, 4772, 4773,
771 4775, 4776, 4792, 4813, 4814, 4816, 4833, 4858, 4860, 4896, 4905, 4925,
772 4936, 4937, 4938, 4941, 4946, 4963, 4972, 5010, 5028, 5043, 5058, 5063,
773 5071, 5103, 5104, 5112, 5113, 5184, 5186
775 * More checking functions: fread, fread_unlocked, open*, mq_open.
776 Implemented by Jakub Jelinek and Ulrich Drepper.
778 * Extend fortification to C++. Implemented by Jakub Jelinek.
780 * Implement 'm' modifier for scanf. Add stricter C99/SUS compliance
781 by not recognizing 'a' as a modifier when those specs are requested.
782 Implemented by Jakub Jelinek.
784 * PPC optimizations to math and string functions.
785 Implemented by Steven Munroe.
787 * New interfaces: mkostemp, mkostemp64. Like mkstemp* but allow additional
788 options to be passed. Implemented by Ulrich Drepper.
790 * More CPU set manipulation functions. Implemented by Ulrich Drepper.
792 * New Linux interfaces: signalfd, eventfd, eventfd_read, and eventfd_write.
793 Implemented by Ulrich Drepper.
795 * Handle private futexes in the NPTL implementation.
796 Implemented by Jakub Jelinek and Ulrich Drepper.
798 * Add support for O_CLOEXEC. Implement in Hurd. Use throughout libc.
799 Implemented by Roland McGrath and Ulrich Drepper.
801 * Linux/x86-64 vDSO support. Implemented by Ulrich Drepper.
803 * SHA-256 and SHA-512 based password encryption.
804 Implemented by Ulrich Drepper.
806 * New locales: ber_DZ, ber_MA, en_NG, fil_PH, fur_IT, fy_DE, ha_NG, ig_NG,
807 ik_CA, iu_CA, li_BE, li_NL, nds_DE, nds_NL, pap_AN, sc_IT, tk_TM, ug_CN,
808 yo_NG.
810 + New iconv modules: MAC-CENTRALEUROPE, ISO-8859-9E, KOI8-RU.
811 Implemented by Ulrich Drepper.
812 \f
813 Version 2.6
815 * The following bugs are resolved with this release:
817 3156, 3213, 3285, 3291, 3306, 3313, 3320, 3322, 3325, 3326, 3334, 3348,
818 3352, 3363, 3369, 3426, 3427, 3429, 3451, 3458, 3465, 3480, 3483, 3493,
819 3514, 3515, 3559, 3632, 3664, 3673, 3674, 3745, 3747, 3818, 3840, 3842,
820 3851, 3855, 3884, 3885, 3902, 3905, 3919, 3944, 3954, 3955, 3957, 3991,
821 3995, 3996, 4024, 4040, 4069, 4070, 4074, 4076, 4096, 4101, 4102, 4114,
822 4130, 4131, 4181, 4276, 4306, 4342, 4344, 4349, 4364, 4368, 4381, 4392,
823 4403, 4405, 4406, 4411, 4438, 4439, 4455, 4456, 4465, 4512, 4514, 4586,
824 4702, 4858
826 * New Linux interfaces: epoll_pwait, sched_getcpu.
828 * New generic interfaces: strerror_l.
830 * nscd can now cache the services database. Implemented by Ulrich Drepper.
831 \f
832 Version 2.5
834 * The following bugs are resolved with this release:
836 39, 68, 192, 352, 388, 531, 935, 1006, 1201, 1203, 1386, 1782, 1783, 1784,
837 1785, 1786, 1787, 1951, 1974, 1996, 2072, 2098, 2125, 2134, 2158, 2182,
838 2349, 2376, 2386, 2389, 2415, 2418, 2420, 2423, 2450, 2451, 2466, 2472,
839 2473, 2477, 2498, 2499, 2501, 2502, 2505, 2507, 2508, 2509, 2517, 2526,
840 2569, 2571, 2592, 2611, 2625, 2632, 2644, 2662, 2680, 2683, 2684, 2693,
841 2695, 2703, 2734, 2751, 2764, 2766, 2775, 2792, 2821, 2823, 2832, 2841,
842 2843, 2883, 2892, 2908, 2914, 2926, 2961, 2978, 2980, 2987, 2997, 2998,
843 3013, 3018, 3034, 3040, 3044, 3123, 3124, 3137, 3138, 3143, 3155, 3189,
844 3225, 3251, 3252, 3253, 3273
846 * For Linux, the sorting of addresses returned by getaddrinfo now also
847 handles rules 3, 4, and 7 from RFC 3484. I.e., all rules are handled.
848 Implemented by Ulrich Drepper.
850 * Allow system admin to configure getaddrinfo with the /etc/gai.conf file.
851 Implemented by Ulrich Drepper.
853 * New Linux interfaces: splice, tee, sync_file_range, vmsplice.
855 * New iconv module for MIK. Contributed by Alexander Shopov.
857 * For sites with broken group and/or passwd database, the auto-propagate
858 option of nscd can prevent creating ID lookup entries from the results
859 of a name lookup and vice versa. This usually is no problem but some
860 site might have problems with the default behavior.
861 Implemented by Ulrich Drepper.
863 * Iterating over entire database in NIS can be slow. With the
864 SETENT_BATCH_READ option in /etc/default/nss a system admin can decide
865 to trade time for memory. The entire database will be read at once.
866 Implemented by Ulrich Drepper.
868 * The interfaces introduced in RFC 3542 have been implemented by
869 Ulrich Drepper.
871 * Support for the new ELF hash table format was added by Ulrich Drepper.
873 * Support for priority inheritance mutexes added by Jakub Jelinek and
874 Ulrich Drepper.
876 * Support for priority protected mutexes added by Jakub Jelinek.
878 * New locales: nr_ZA, pa_PK, ca_AD, ca_FR, ca_IT, el_CY, tr_CY, as_IN,
879 or_IN, csb_PL, fy_NL, sr_ME.
880 \f
881 Version 2.4
883 * More overflow detection functions.
885 * New iconv converters for IBM1025, IBM1122, IBM1137, IBM1153,
886 IBM1154, IBM1155, IBM1156, IBM1157, and IBM1158 contributed by Jiro Sekiba.
888 More converters for IBM803, IBM901, IBM902, IBM921, IBM1008, IBM1097,
889 IBM1112, IBM1123, IBM1130, IBM1140, IBM1141, IBM1142, IBM1143, IBM1144,
890 IBM1145, IBM1146, IBM1147, IBM1148, IBM1149, IBM1166, IBM1167, IBM4517,
891 IBM4899, IBM4909, IBM4971, IBM5347, IBM9030, IBM9066, IBM9448, IBM12712,
892 IBM16804, IBM1364, IBM1371, IBM1388, IBM1390, and IBM1399 contributed
893 by Masahide Washizawa.
895 * It is now possible to install audit libraries for the dynamic linker using
896 LD_AUDIT. Implemented by Ulrich Drepper.
898 * The LinuxThreads add-on, providing pthreads on Linux 2.4 kernels, is no
899 longer supported. The new NPTL implementation requires Linux 2.6 kernels.
900 For a libc and libpthread that works well on Linux 2.4 kernels, we
901 recommend using the stable 2.3 branch.
903 * The new function open_wmemstream acts like open_memstream,
904 but uses a wchar_t wide character buffer.
906 * The new function ppoll is an improved version of poll, similar to pselect.
908 * New interfaces: fdopendir, openat, fstatat, fchmodat, fchownat,
909 futimesat, faccessat, mkdirat, mkfifoat, mknodat,
910 renameat, unlinkat, linkat, symlinkat, readlinkat.
912 * New Linux kernel system calls: unshare,
913 inotify_init, inotify_add_watch, inotify_rm_watch.
915 * The euidaccess function is now also known by the alias eaccess,
916 for compatibility with some other systems.
918 * Timezone data updated to 2006b version.
919 \f
920 Version 2.3.6
922 * The following bugs are resolved with this release:
924 38, 253, 549, 622, 653, 721, 758, 851, 877, 915, 934, 955, 961,
925 1016, 1037, 1076, 1079, 1080, 1081, 1082, 1083, 1084, 1085, 1086,
926 1087, 1088, 1090, 1091, 1092, 1093, 1094, 1095, 1096, 1097, 1098,
927 1099, 1100, 1101, 1102, 1103, 1104, 1105, 1106, 1107, 1108, 1109,
928 1110, 1111, 1112, 1113, 1125, 1137, 1138, 1249, 1250, 1251, 1252,
929 1253, 1254, 1350, 1358, 1394, 1438, 1498, 1534
931 Visit <http://sources.redhat.com/bugzilla/> for the details of each bug.
933 * As of this release, GCC 4 can be used to compile the C Library.
935 * Timezone data updated to 2005m version.
936 \f
937 Version 2.3.5
939 * The following bugs are resolved with this release:
941 284, 592, 602, 626, 633, 640, 650, 661, 671, 681, 693, 700, 710, 719,
942 722, 723, 725, 726, 727, 728, 729, 730, 731, 732, 733, 734, 735, 736,
943 737, 738, 739, 740, 741, 742, 743, 744, 745, 765, 767, 768, 769, 776,
944 777, 787, 821, 822, 823, 825
946 Visit <http://sources.redhat.com/bugzilla/> for the details of each bug.
947 \f
948 Version 2.3.4
950 * Support for RFC 3678. Real implementations exist only for Linux so far.
951 Implemented by Ulrich Drepper.
953 * nscd can now cache entries persistently. Expiring entries are reloaded.
954 For speedups the cache can be shared in memory with client processes.
955 Implemented by Ulrich Drepper.
957 * nscd can now perform SELinux checks.
958 Implemented by Matthew Rickard <mjricka@epoch.ncsc.mil>.
960 * getaddrinfo queries are now cached. Canonical name lookup is performed
961 efficiently.
962 Implemented by Ulrich Drepper.
964 * The nothrow function attribute is used when headers are used by gcc when
965 compiling C code. This can avoid significant amounts of exception
966 handling data.
968 * The malloc functions perform more error checking and are stricter when
969 it comes to reacting on errors. The default action is to terminate
970 the process after showing an error message. Implemented by Ulrich Drepper.
972 * Reverse lookups of IPv6 addresses does not use bit string or .ip6.int
973 lookups anymore unless explicitly requested. Implemented by Ulrich Drepper.
975 * Namespaces in ld.so are implemented. DSOs can be loaded in separate
976 namespaces using the new function dlmopen(). This feature is of course,
977 like most other dynamic loading functionality, not available in statically
978 linked applications. Implemented by Ulrich Drepper.
980 * Low-overhead boundary checking variants of string and some stdio functions
981 were added. These are to be used in conjunction with a gcc patch by
982 Jakub Jelinek which adds calls to these functions if possible.
983 Implemented by Jakub Jelinek and Ulrich Drepper.
985 * Old code for several operating systems and machine architectures that
986 have not been in working condition in a long time have been removed from
987 the main source tree maintained by the GNU C Library's maintainers.
988 These files are now reside in the separate `ports' source module
989 that is usable as an add-on when building the library.
990 \f
991 Version 2.3.3
993 * New functions `dladdr1' and `dlinfo' in <dlfcn.h> provide more ways to
994 interrogate the dynamic linker, compatible with the Solaris interface.
996 * ELF thread-local storage support (TLS) now works on PowerPC and PowerPC64;
997 implemented by Paul Mackerras, Steven Munroe, and Roland McGrath.
999 * getifaddrs now uses the netlink interface on Linux to get its information.
1000 Implemented by Thorsten Kukuk.
1002 * getaddrinfo now implements AI_V4MAPPED, AI_ALL, and AI_ADDRCONF.
1003 Implemented by Ulrich Drepper.
1005 * support for non-executable stacks on x86 has been added. Changes mostly
1006 by Roland McGrath.
1008 * regex is now much faster for multibyte locales. Changes by Jakub Jelinek
1009 and Ulrich Drepper.
1011 * getaddrinfo now performs destination address selection according to
1012 RFC 3484.
1013 \f
1014 Version 2.3.2
1016 * Thread-safe interfaces for many functions that access locale data
1017 were added in version 2.3, but these features were omitted from NEWS.
1018 Many functions have variants with an `_l' suffix that take a `locale_t'
1019 object as a parameter rather than consulting the current locale.
1020 The new functions `newlocale', `duplocale', and `freelocale' in <locale.h>
1021 create and maintain `locale_t' objects. Additionally, the new function
1022 `uselocale' sets "the current locale" (as used by functions not so
1023 parameterized) set for an individual thread. These features were added
1024 in version 2.3, implemented by Ulrich Drepper and Roland McGrath.
1026 * The functions getresuid, getresgid, setresuid, and setresgid, which
1027 have long been available on Linux, are now declared in <unistd.h>
1028 and are now also available on the Hurd.
1030 * ELF thread-local storage support (TLS) now works on x86-64.
1032 * The new dynamic string token $LIB is expanded in shared library names.
1033 This normally expands to lib, but on some 64-bit platforms to lib64 instead.
1035 * Aldy Hernandez contributed complete software floating point support for
1036 PowerPC machines with no FPU.
1038 * fexecve is implemented on Linux.
1040 * The `btowc' function should work at least twice as fast due to
1041 specialized callbacks in the iconv modules. Implemented by Bruno Haible.
1043 * With approriate thread add-ons cancelable functions are now implemented
1044 in libc.so as well. No need to call the function in libpthread. This
1045 change allowed to finally disable the incorrect and expensive handling
1046 of weak definition in ld.so.
1048 * Yet more PLT entries in libc.so have been removed. We finally arrived
1049 at the bare minimum. Startup times improved appropriately.
1051 * Support for the new Linux/x86 system call interface was added. The
1052 AT_SYSINFO auxiliary vector entry is recognized and handled.
1053 \f
1054 Version 2.3
1056 * Masahide Washizawa contributed iconv modules for IBM1163 and IBM1164
1057 charsets.
1059 * iconv (the program and the interface) now accepts empty names (excluding
1060 options like //TRANSLIT) to mean "use charset of current locale".
1062 * localedef can now transliterate characters in strings which are not in
1063 the provided charmap. The information from the input locale is used.
1065 * Prelinking support was added for ELF targets. This requires additional
1066 tools and recent versions of the GNU binutils. Contributed by Jakub Jelinek.
1068 * Read-only stdio streams now use mmap to speed up operation by eliminating
1069 copying and buffer underflows. To use add 'm' to the mode string of
1070 the fopen/fdopen/freopen call. Implemented by Ulrich Drepper.
1072 * The malloc functions were completely rewritten by Wolfram Gloger based
1073 on Doug Lea's malloc-2.7.0.c.
1075 * Isamu Hasegawa contributed a completely new and POSIX-conformant
1076 implementation of regex.
1078 * Bruno Haible upgraded the iconv and locale implementation to support
1079 Unicode 3.2.
1081 * Contents of the LC_* and LANG environment variables in the CEN style are
1082 not recognized anymore. It never was used. Change by Ulrich Drepper.
1084 * The runtime (ld.so, libc, libpthread for Linux) now can handle the ELF
1085 thread-local storage (TLS) ABI on some platforms.
1086 Changes by Ulrich Drepper. SH support by Kaz Kojima.
1088 * Bruno Haible contributed iconv converters for ISO-2022-JP-3, SHIFT JIS-X0213,
1089 EUC-JISX0213, and TSCII.
1091 * New header <ifaddrs.h> with functions `getifaddrs' and `freeifaddrs':
1092 BSD-compatible interface for getting all network interface addresses.
1093 Implementation for IPv4 by Roland McGrath.
1095 * Loading of locale data is faster due to the introduction of a locale
1096 archive. Implemented by Roland McGrath and Ulrich Drepper.
1098 * Startup times are significantly reduced by not using exported functions
1099 inside the library itself. Changes by Jakub Jelinek, Roland McGrath,
1100 and Ulrich Drepper.
1102 * Steven Munroe contributed a port to PowerPC64/Linux.
1103 \f
1104 Version 2.2.6
1106 * The Hurd now uses the GNU libio implementation of stdio rather than the
1107 old GNU stdio implementation, and uses a new ABI (libc.so.0.3).
1109 * The Hurd on x86 now has the `ioperm' function and <sys/io.h> header file
1110 with the same behavior as the Linux system call of the same name.
1111 \f
1112 Version 2.2.5
1114 * Stephen Moshier implemented log2, log10, powl and cbrtl for the
1115 128-bit long double format.
1117 * Masahide Washizawa contributed iconv modules for IBM1132, IBM1133, IBM1160,
1118 IBM1161, and IBM1162 charsets.
1120 * Andreas Jaeger contributed a port to x86-64/Linux.
1122 * Peter Bruin contributed a port to PowerPC/Hurd.
1124 * libc functions using I/O streams now can handle wide-oriented streams
1125 as well.
1127 * optimizations in the dynamic linker. Binaries created by recent binutils
1128 versions start up quicker due to reduced time spent on relocations.
1130 * Support for use of gcc3 added by Jakub Jelinek and HJ Lu.
1131 \f
1132 Version 2.2.4
1134 * Stephen Moshier implemented cosh, expm1, log1p, acos, sinh, tanh,
1135 asinh, atanh, j0 for the 128-bit long double format.
1137 * Bruno Haible updated all the code handling Unicode in some form to
1138 support Unicode 3.1.
1140 * Speed of regex for single-byte locales is back to previous levels.
1141 Patch by Isamu Hasegawa.
1143 * Alpha, SPARC, and IA-64 now also using floating stacks.
1145 * Startup time of internationalized applications greatly improved through
1146 iconv cache. Use iconvconfig to generate the cache file.
1147 Contributed by Ulrich Drepper.
1149 * The IA-64 specific part of ld.so was rewritten to eliminate some pretty
1150 severe performance problems. Patch by David Mosberger.
1152 * The Hurd port got a lot more functionality like AIO, various stdio
1153 extensions, etc. Mainly done by Roland McGrath.
1155 * mtrace can now lookup symbols in shared libraries.
1156 \f
1157 Version 2.2.3
1159 * Intel's IA-64 math library is largely integrated. It provides fast and
1160 accurate implementatations for most basic and standard math functions
1161 in float, double, and long double format.
1163 * Stephen Moshier implemented j0, j1, jn, y0, y1, yn, lgamma, erf, erfc,
1164 and asin for the 96-bit long double format and asin, log, tan for the
1165 128-bit long double format.
1167 * The beginning of a last-bit accurate math library by IBM Haifa were added.
1168 The basic double functions exist today. Contributed by Abraham Ziv
1169 <ziv@il.ibm.com>, Moshe Olshansky <olshansk@il.ibm.com>, Ealan Henis
1170 <ealan@il.ibm.com>, and Anna Reitman <reitman@il.ibm.com>.
1172 * An asynchronous name lookup library was added. The interface is designed
1173 after POSIX AIO. The proposal was circulated beforehand to get comments.
1174 No negative ones came in. Implemented by Ulrich Drepper.
1176 * Port to S390/64bit contributed by Martin Schwidefsky
1177 <schwidefsky@de.ibm.com>.
1179 * David Mosberger <davidm@hpl.hp.com> implemented the setcontext family
1180 of functions for Linux/IA-64.
1182 * The RPC code is now thread safe. Threads can now use the same service
1183 of different services at the same time. Patch by Eric Norum
1184 <eric.norum@usask.ca> with some help by Ulrich Drepper.
1186 * Martin Schwidefsky <schwidefsky@de.ibm.com> implemented the setcontext
1187 family of functions for Linux/S390.
1189 * Ulrich Drepper <drepper@redhat.com> implemented the setcontext family
1190 of functions for Linux/x86.
1192 * Port to Linux/CRIS contributed by Axis Communications.
1193 \f
1194 Version 2.2.2
1196 * Lots of headers were cleaned up. Using the tool in the conform/ subdir
1197 we can now check for namespace violations and missing declarations. The
1198 result is that almost all headers are now Unix-compliant (as defined in
1199 the upcoming XPG6). The negative side is that some programs might need
1200 corrections, too, if they depend on the incorrect form of the headers in
1201 previous versions which defined too many symbols and included too many
1202 other headers.
1204 * regex now handles multibyte character sets correctly.
1205 Contributed by Isamu Hasegawa <isamu@yamato.ibm.com>.
1207 * iconv (the program) does now conform to the upcoming XPG6 and handles
1208 charmaps. Instead of the charset names the path of charmaps can be
1209 provided and the conversion happens based on this data.
1210 Contributed by Ulrich Drepper.
1212 * The locale program now provides detailed information about the installed
1213 locales. While
1215 locale -a
1217 only lists the names of the supported locales
1219 locale -a --verbose
1221 provides details such as country, language, and codeset name.
1222 Contributed by Ulrich Drepper.
1223 \f
1224 Version 2.2.1
1226 * The gencat program now parses the input file according to the charset
1227 selected by the LC_CTYPE category. This is important for stateful
1228 character sets. To make generating catalogs easier there is a way
1229 to overwrite the charset selected by the locale: before the first
1230 message or $ quote line the catalog can contain a line like
1232 $ codeset=ISO-8859-2
1234 to select the charset (ISO-8859-2 in this case).
1236 Implemented by Shinya Hanataka and Ulrich Drepper.
1238 * New codeset conversion modules: IBM-922 (Estonia PC codeset),
1239 IBM-1124 (Ukraine PC codeset), IBM-1129 (Vietnamese PC codeset).
1240 Contributed by Masahide Washizawa <washi@jp.ibm.com>.
1242 * Optimized string functions for Alpha ev6 and ev67 by Richard Henderson
1243 <rth@redhat.com> and Rick Gorton <rick.gorton@alpha-processor.com>.
1245 * The LANGUAGE environment variable is now ignored unless the locale is
1246 changed from the default "C" locale.
1248 * The usual bug fixes.
1249 \f
1250 Version 2.2
1252 * Greg McGary added runtime support for bounds checking using gcc's
1253 new -fbounded-pointers option. ix86 target is complete. PowerPC
1254 is in progress.
1256 * Thorsten Kukuk added secure mode support to nscd.
1258 * The Berkeley db libraries have been removed.
1260 Related, the nss_db module is now in a separate package since it
1261 obviously requires a database library being available.
1263 * Wide character I/O streams implemented by Ulrich Drepper.
1265 * Functions from the extended socket API added by Ulrich Drepper.
1267 * Functions feenableexcept and fedisableexcept to control the
1268 behaviour of individual exceptions have been added by Andreas Jaeger.
1270 * ldconfig program added by Andreas Jaeger and Jakub Jelinek.
1272 * The resolver code has been updated from bind 8.2.3-T5B which supports
1273 threads. The integration was done by Andreas Jaeger, Adam D. Bradley,
1274 and Mark Kettenis.
1276 This change could in some situations effect backward compatibility. Since
1277 now `_res' is a thread-local instead of a global variable, modifying it
1278 in one thread does not have any effect in other threads.
1280 The resolver library was also extended to allow IPv6 as the transport
1281 protocol for the requests. This work was done by Stig Venaas.
1283 * Compatibility code for K&R C compilers has been removed from the
1284 header files. A ISO C compiler is needed to use the library
1285 (conforming to either C89 or C99 standard).
1287 * Complete rewrite of the localedef program to support multibyte character
1288 sets. Implement handling of ISO 14651 and ISO 14652. Rewrite strcoll,
1289 strxfrm, wcscoll, and wcsxfrm functions. Make isw*() functions work.
1290 Implemented by Ulrich Drepper.
1292 Bruno Haible significantly improved the generation and use of the data
1293 structures for the wide character tables.
1295 * Plural handling in gettext implemented by Ulrich Drepper.
1297 * The utmp daemon has been removed.
1299 * The port to MIPS-Linux has been finished by Andreas Jaeger.
1301 * A port to Hitachi SH3 and SH4 has been contributed by Kazumoto Kojima
1302 and Yutaka Niibe.
1304 * POSIX clocks and timers implemented by Kaz Kylheku and Ulrich Drepper.
1306 * POSIX barriers implemented by Kaz Kylheku.
1308 * POSIX spawn function family implemented by Ulrich Drepper.
1310 * POSIX spinlocks are now available.
1312 * Timed wait functions for mutex, rwlock, and semaphores are implemented.
1314 * the configure option --enable-kernel=X.Y.Z allows to strip out
1315 compatibility for kernel versions before X.Y.Z. This is currently only
1316 implemented for Linux.
1318 * the sockaddr_in6 structure changed. The IPv6 working group added a new
1319 field sin6_scope_id. This means that all programs using IPv6 should be
1320 recompiled. Don't expect binary compatibility with previous glibc
1321 versions.
1323 * various conversion modules for IBM character sets contributed by
1324 Masahide Washizawa.
1326 * IA-64 port by Jes Sorensen and HJ Lu.
1327 \f
1328 Version 2.1.3
1330 * bug fixes
1332 \f
1333 Version 2.1.2
1335 * bug fixes
1337 \f
1338 Version 2.1.1
1340 * New ISO C 9x function _Exit, imaxabs, and imaxdiv are added.
1342 * New xdr functions are added; some rpc functions are now 64bit clean.
1344 * Fixed a number of bugs and memory leaks (especially in NIS+ code).
1346 * Fixed known incompatibilities with glibc 2.0.
1348 * New functions lock64, strchrnul, rawmemchr, getutmp and getutmpx.
1350 * Optimized a number of functions (especially the ELF dynamic loader).
1352 * Update timezone data files.
1354 * lots of charmaps corrections
1356 * some new locale definitions and charmaps
1358 \f
1359 Version 2.1
1361 * Richard Henderson corrected size of struct timeval on Linux/Alpha to
1362 conform to POSIX member type requirements. Symbol versions have been
1363 adjusted as needed within the library, and for direct use by applications,
1364 but there is potential for problems if third-party libraries use
1365 struct timeval as part of their interface. This does not present
1366 a problem for X and other "essential" system libraries.
1368 * An additional locale model to support C++ Standard Library locale
1369 model and probably more was implemented by Ulrich Drepper.
1371 * Eric Youngdale and Ulrich Drepper implemented versioning of objects on
1372 symbol level.
1374 * Miles Bader provided the `argp' function family to support hierachical
1375 command line argument parsing, layered on top of getopt.
1377 * strtod accepts new hexadecimal floating-point format from ISO C 9X.
1379 * printf has two new specifiers %a and %A to print hexadecimal flaoting-point
1380 numbers.
1382 * scanf recognizes the %a and %A format for scanning floating point numbers.
1384 * the new headers <stdint.h> and <inttypes.h> from ISO C 9X provides
1385 information and interfaces for the available integer types.
1387 * about 130 new math functions were added to implement the ISO C9x math
1388 library.
1390 * the new header <complex.h> contains definitions of the complex math
1391 functions from ISO C 9X.
1393 * the new header <tgmath.h> defines generic macros to use complex or
1394 real valued functions.
1396 * Thorsten Kukuk provided an implementation for NIS+, securelevel 0, 1 and 2.
1398 * Andreas Jaeger provided a test suite for the math library.
1400 * Mark Kettenis implemented the utmpx interface and an utmp daemon.
1402 * Ulrich Drepper added character set conversion functions (iconv).
1404 * Optimized string functions have been added.
1406 * The localedata addon is now part of glibc.
1408 * An implementation of profiling shared libraries was added by Ulrich Drepper.
1410 * Thorsten Kukuk and Ulrich Drepper provided an implementation for a caching
1411 daemon for NSS (nscd).
1413 Missing a better place here are some numbers on improvements. Under
1414 Linux 2.1.125 un-tar-ing the kernel sources takes
1416 user system wall
1418 using local files 12.19s 6.88s 22.91s
1420 using NIS 13.92s 8.91s 26.34s
1422 using NIS & nscd 10.37s 7.34s 25.30s
1424 using NIS+ 27.57s 30.37s 640.46s
1426 using NIS+ & nscd 10.25s 7.83s 26.51s
1428 using NIS & old nscd [1] 13.83s 8.32s 29.60s
1430 Keep in mind that non-namelookup related operations dominate above times.
1431 It was just a common complain that using NIS+ unpacking the kernel is
1432 horribly slow.
1434 [1] The old nscd implementation is not available anymore since it was
1435 distributed with glibc up to version 2.0.98 and thus is now replaced.
1437 * Tim Waugh provided an implementation of the POSIX.2 wordexp function family.
1439 * Mark Kettenis provided a Hesiod NSS module.
1441 * The ELF dynamic loader knows how to process dynamic string tokens ($ORIGIN
1442 and $PLATFORM) in RPATHs and similar strings (Ulrich Drepper).
1444 * rcmd can now handle netgroups (Dick Streefland).
1446 * A port to the ARM was contributed by Phil Blundell, Pat Beirne and Scott
1447 Bambrough.
1449 * Support for the IPv6 protocol has been added to the socket API, as per the
1450 latest draft standards.
1452 * Support for Linux 2.2 has been added.
1454 * Interface changes relative to the latest 2.0.x release:
1455 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1456 addseverity NEW: Unix98
1457 alphasort64 NEW: LFS
1458 argp_err_exit_status NEW: argp, GNU ext
1459 argp_error NEW: argp, GNU ext
1460 argp_failure NEW: argp, GNU ext
1461 argp_help NEW: argp, GNU ext
1462 argp_parse NEW: argp, GNU ext
1463 argp_program_bug_address NEW: argp, GNU ext
1464 argp_program_version NEW: argp, GNU ext
1465 argp_program_version_hook NEW: argp, GNU ext
1466 argp_state_help NEW: argp, GNU ext
1467 argp_usage NEW: argp, GNU ext
1468 authdes_create NEW: Secure RPC
1469 authdes_getucred NEW: Secure RPC
1470 authdes_pk_create NEW: Secure RPC
1471 backtrace NEW: GNU ext.
1472 backtrace_symbols NEW: GNU ext.
1473 backtrace_symbols_fd NEW: GNU ext.
1474 cacos NEW: ISO C 9x
1475 cacosf NEW: ISO C 9x
1476 cacosh NEW: ISO C 9x
1477 cacoshf NEW: ISO C 9x
1478 cacoshl NEW: ISO C 9x
1479 cacosl NEW: ISO C 9x
1480 capget NEW: kernel
1481 capset NEW: kernel
1482 carg NEW: ISO C 9x
1483 cargf NEW: ISO C 9x
1484 cargl NEW: ISO C 9x
1485 casin NEW: ISO C 9x
1486 casinf NEW: ISO C 9x
1487 casinh NEW: ISO C 9x
1488 casinhf NEW: ISO C 9x
1489 casinhl NEW: ISO C 9x
1490 casinl NEW: ISO C 9x
1491 catan NEW: ISO C 9x
1492 catanf NEW: ISO C 9x
1493 catanh NEW: ISO C 9x
1494 catanhf NEW: ISO C 9x
1495 catanhl NEW: ISO C 9x
1496 catanl NEW: ISO C 9x
1497 cbc_crypt NEW: Secure RPC
1498 ccos NEW: ISO C 9x
1499 ccosf NEW: ISO C 9x
1500 ccosh NEW: ISO C 9x
1501 ccoshf NEW: ISO C 9x
1502 ccoshl NEW: ISO C 9x
1503 ccosl NEW: ISO C 9x
1504 cexp NEW: ISO C 9x
1505 cexpf NEW: ISO C 9x
1506 cexpl NEW: ISO C 9x
1507 cimag NEW: ISO C 9x
1508 cimagf NEW: ISO C 9x
1509 cimagl NEW: ISO C 9x
1510 clearerr_locked REMOVED
1511 clntunix_create NEW: sunrpc ext
1512 clog NEW: ISO C 9x
1513 clog10 NEW: ISO C 9x
1514 clog10f NEW: ISO C 9x
1515 clog10l NEW: ISO C 9x
1516 clogf NEW: ISO C 9x
1517 clogl NEW: ISO C 9x
1518 conj NEW: ISO C 9x
1519 conjf NEW: ISO C 9x
1520 conjl NEW: ISO C 9x
1521 cpow NEW: ISO C 9x
1522 cpowf NEW: ISO C 9x
1523 cpowl NEW: ISO C 9x
1524 cproj NEW: ISO C 9x
1525 cprojf NEW: ISO C 9x
1526 cprojl NEW: ISO C 9x
1527 creal NEW: ISO C 9x
1528 crealf NEW: ISO C 9x
1529 creall NEW: ISO C 9x
1530 creat64 NEW: LFS
1531 csin NEW: ISO C 9x
1532 csinf NEW: ISO C 9x
1533 csinh NEW: ISO C 9x
1534 csinhf NEW: ISO C 9x
1535 csinhl NEW: ISO C 9x
1536 csinl NEW: ISO C 9x
1537 csqrt NEW: ISO C 9x
1538 csqrtf NEW: ISO C 9x
1539 csqrtl NEW: ISO C 9x
1540 ctan NEW: ISO C 9x
1541 ctanf NEW: ISO C 9x
1542 ctanh NEW: ISO C 9x
1543 ctanhf NEW: ISO C 9x
1544 ctanhl NEW: ISO C 9x
1545 ctanl NEW: ISO C 9x
1546 des_setparity NEW: Secure RPC
1547 ecb_crypt NEW: Secure RPC
1548 endutxent NEW: Unix98
1549 exp10 NEW: ISO C 9x
1550 exp10f NEW: ISO C 9x
1551 exp10l NEW: ISO C 9x
1552 exp2 NEW: ISO C 9x
1553 exp2f NEW: ISO C 9x
1554 exp2l NEW: ISO C 9x
1555 fattach NEW: STREAMS
1556 fdetach NEW: STREAMS
1557 fdim NEW: ISO C 9x
1558 fdimf NEW: ISO C 9x
1559 fdiml NEW: ISO C 9x
1560 feclearexcept NEW: ISO C 9x
1561 fegetenv NEW: ISO C 9x
1562 fegetexceptflag NEW: ISO C 9x
1563 fegetround NEW: ISO C 9x
1564 feholdexcept NEW: ISO C 9x
1565 feof_locked REMOVED
1566 feraiseexcept NEW: ISO C 9x
1567 ferror_locked REMOVED
1568 fesetenv NEW: ISO C 9x
1569 fesetexceptflag NEW: ISO C 9x
1570 fesetround NEW: ISO C 9x
1571 fetestexcept NEW: ISO C 9x
1572 feupdateenv NEW: ISO C 9x
1573 fflush_locked REMOVED
1574 ffsl NEW: GNU ext.
1575 ffsll NEW: GNU ext.
1576 fgetpos64 NEW: LFS
1577 fgets_unlocked NEW: GNU ext.
1578 fileno_locked REMOVED
1579 fma NEW: ISO C 9x
1580 fmaf NEW: ISO C 9x
1581 fmal NEW: ISO C 9x
1582 fmax NEW: ISO C 9x
1583 fmaxf NEW: ISO C 9x
1584 fmaxl NEW: ISO C 9x
1585 fmin NEW: ISO C 9x
1586 fminf NEW: ISO C 9x
1587 fminl NEW: ISO C 9x
1588 fmtmsg NEW: Unix98
1589 fopen64 NEW: LFS
1590 fputc_locked REMOVED
1591 fputs_unlocked NEW: GNU ext.
1592 fread_unlocked NEW: GNU ext.
1593 freopen64 NEW: LFS
1594 fseeko NEW: Unix98
1595 fsetpos64 NEW: LFS
1596 fstatfs64 NEW: LFS
1597 fstatvfs NEW: Unix98
1598 fstatvfs64 NEW: LFS
1599 ftello NEW: Unix98
1600 ftello64 NEW: LFS
1601 ftruncate64 NEW: LFS
1602 ftw64 NEW: LFS
1603 fwrite_unlocked NEW: GNU ext.
1604 gai_strerror NEW: IPv6
1605 gamma_r REMOVED
1606 gammaf_r REMOVED
1607 gammal_r REMOVED
1608 getchar_locked REMOVED
1609 getdate NEW: Unix98
1610 getdate_err NEW: Unix98
1611 getdate_r NEW: GNU ext.
1612 getmsg NEW: STREAMS
1613 getnameinfo NEW: IPv6
1614 getnetname NEW: Secure RPC
1615 getpmsg NEW: STREAMS
1616 getpt NEW: Unix98 PTY
1617 getrlimit64 NEW: LFS
1618 getutxent NEW: Unix98
1619 getutxid NEW: Unix98
1620 getutxline NEW: Unix98
1621 glob64 NEW: GNU ext.
1622 globfree64 NEW: GNU ext.
1623 gnu_get_libc_release NEW: GNU ext.
1624 gnu_get_libc_version NEW: GNU ext.
1625 grantpt NEW: Unix98 PTY
1626 host2netname NEW: Secure RPC
1627 iconv NEW: iconv
1628 iconv_close NEW: iconv
1629 iconv_open NEW: iconv
1630 if_freenameindex NEW: IPv6
1631 if_indextoname NEW: IPv6
1632 if_nameindex NEW: IPv6
1633 if_nametoindex NEW: IPv6
1634 in6addr_any NEW: IPv6
1635 in6addr_loopback NEW: IPv6
1636 inet6_isipv4mapped NEW: IPv6
1637 isastream NEW: STREAMS
1638 iswblank NEW: GNU ext.
1639 key_decryptsession NEW: Secure RPC
1640 key_decryptsession_pk NEW: Secure RPC
1641 key_encryptsession NEW: Secure RPC
1642 key_encryptsession_pk NEW: Secure RPC
1643 key_gendes NEW: Secure RPC
1644 key_get_conv NEW: Secure RPC
1645 key_secretkey_is_set NEW: Secure RPC
1646 key_setnet NEW: Secure RPC
1647 key_setsecret NEW: Secure RPC
1648 llrint NEW: ISO C 9x
1649 llrintf NEW: ISO C 9x
1650 llrintl NEW: ISO C 9x
1651 llround NEW: ISO C 9x
1652 llroundf NEW: ISO C 9x
1653 llroundl NEW: ISO C 9x
1654 log2 NEW: ISO C 9x
1655 log2f NEW: ISO C 9x
1656 log2l NEW: ISO C 9x
1657 lrint NEW: ISO C 9x
1658 lrintf NEW: ISO C 9x
1659 lrintl NEW: ISO C 9x
1660 lround NEW: ISO C 9x
1661 lroundf NEW: ISO C 9x
1662 lroundl NEW: ISO C 9x
1663 lseek64 NEW: LFS
1664 makecontext NEW: Unix98
1665 mempcpy NEW: GNU ext.
1666 mmap64 NEW: LFS
1667 moncontrol REMOVED
1668 modify_ldt NEW: kernel
1669 nan NEW: ISO C 9x
1670 nanf NEW: ISO C 9x
1671 nanl NEW: ISO C 9x
1672 nearbyint NEW: ISO C 9x
1673 nearbyintf NEW: ISO C 9x
1674 nearbyintl NEW: ISO C 9x
1675 netname2host NEW: Secure RPC
1676 netname2user NEW: Secure RPC
1677 nexttoward NEW: ISO C 9x
1678 nexttowardf NEW: ISO C 9x
1679 nexttowardl NEW: ISO C 9x
1680 nftw NEW: Unix98
1681 nftw64 NEW: LFS
1682 open64 NEW: LFS
1683 passwd2des NEW: Secure RPC
1684 pow10 NEW: GNU ext.
1685 pow10f NEW: GNU ext.
1686 pow10l NEW: GNU ext.
1687 pread NEW: Unix98
1688 pread64 NEW: LFS
1689 printf_size NEW: GNU ext.
1690 printf_size_info NEW: GNU ext.
1691 profil_counter REMOVED
1692 pthread_mutexattr_getkind_np REPLACED
1693 pthread_mutexattr_setkind_np REPLACED
1694 ptsname NEW: Unix98 PTY
1695 ptsname_r NEW: Unix98 PTY
1696 putc_locked REMOVED
1697 putchar_locked REMOVED
1698 putgrent NEW: GNU ext.
1699 putmsg NEW: STREAMS
1700 putpmsg NEW: STREAMS
1701 pututxline NEW: Unix98
1702 pwrite NEW: Unix98
1703 pwrite64 NEW: LFS
1704 readdir64 NEW: LFS
1705 readdir64_r NEW: LFS
1706 remquo NEW: ISO C 9x
1707 remquof NEW: ISO C 9x
1708 remquol NEW: ISO C 9x
1709 round NEW: ISO C 9x
1710 roundf NEW: ISO C 9x
1711 roundl NEW: ISO C 9x
1712 rtime NEW: GNU ext.
1713 scalbln NEW: ISO C 9x
1714 scalblnf NEW: ISO C 9x
1715 scalblnl NEW: ISO C 9x
1716 scandir64 NEW: LFS
1717 sendfile NEW: kernel
1718 setcontext NEW: Unix98
1719 setrlimit64 NEW: LFS
1720 setutxent NEW: Unix98
1721 sighold NEW: Unix98
1722 sigignore NEW: Unix98
1723 sigqueue NEW: POSIX.1b
1724 sigrelse NEW: Unix98
1725 sigset NEW: POSIX.1b
1726 sigtimedwait NEW: POSIX.1b
1727 sigwaitinfo NEW: POSIX.1b
1728 sincos NEW: GNU ext.
1729 sincosf NEW: GNU ext.
1730 sincosl NEW: GNU ext.
1731 statfs64 NEW: LFS
1732 statvfs NEW: Unix98
1733 statvfs64 NEW: LFS
1734 strcasestr NEW: GNU ext.
1735 strtoimax NEW: ISO C 9x
1736 strtoumax NEW: ISO C 9x
1737 strverscmp NEW: GNU ext.
1738 svcauthdes_stats NEW: Secure RPC
1739 svcunix_create NEW: sunrpc etx
1740 svcunixfd_create NEW: sunrpc ext
1741 swapcontext NEW: Unix98
1742 tcgetsid NEW: Unix98 PTY
1743 tdestroy NEW: GNU ext.
1744 tgamma NEW: ISO C 9x
1745 tgammaf NEW: ISO C 9x
1746 tgammal NEW: ISO C 9x
1747 tmpfile64 NEW: LFS
1748 trunc NEW: ISO C 9x
1749 truncate64 NEW: LFS
1750 truncf NEW: ISO C 9x
1751 truncl NEW: ISO C 9x
1752 umount2 NEW: kernel
1753 unlockpt NEW: Unix98 PTY
1754 updwtmpx NEW: Unix98
1755 user2netname NEW: Secure RPC
1756 utmpxname NEW: Unix98
1757 versionsort NEW: GNU ext.
1758 versionsort64 NEW: GNU ext.
1759 waitid NEW: Unix98
1760 wcscasecmp NEW: GNU ext.
1761 wcsncasecmp NEW: GNU ext.
1762 wcsnlen NEW: GNU ext.
1763 wcstoimax NEW: ISO C 9x
1764 wcstoll NEW: ISO C 9x
1765 wcstoull NEW: ISO C 9x
1766 wcstoumax NEW: ISO C 9x
1767 wcswcs NEW: Unix98
1768 wordexp NEW: POSIX.2
1769 wordfree NEW: POSIX.2
1770 write_profiling REMOVED
1771 xdecrypt NEW: Secure RPC
1772 xdr_authdes_cred NEW: Secure RPC
1773 xdr_authdes_verf NEW: Secure RPC
1774 xdr_cryptkeyarg NEW: Secure RPC
1775 xdr_cryptkeyarg2 NEW: Secure RPC
1776 xdr_cryptkeyres NEW: Secure RPC
1777 xdr_getcredres NEW: Secure RPC
1778 xdr_key_netstarg NEW: Secure RPC
1779 xdr_key_netstres NEW: Secure RPC
1780 xdr_keybuf NEW: Secure RPC
1781 xdr_keystatus NEW: Secure RPC
1782 xdr_netnamestr NEW: Secure RPC
1783 xdr_sizeof NEW: Secure RPC
1784 xdr_unixcred NEW: sunrpc ext
1785 xencrypt NEW: Secure RPC
1786 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1787 \f
1788 Version 2.0.6
1790 * more bug fixes
1792 \f
1793 Version 2.0.5
1795 * more bug fixes
1797 * inet_ntoa is thread-safe
1799 * updwtmp is moved from libutil to libc
1801 * rewrite of cbrt function
1803 * update of timezone data
1804 \f
1805 Version 2.0.4
1807 * more bug fixes
1808 \f
1809 Version 2.0.3
1811 * more bug fixes
1812 \f
1813 Version 2.0.2
1815 * more bug fixes
1817 * add atoll function
1819 * fix complex problems in Berkeley DB code
1821 * fix math functions
1822 \f
1823 Version 2.0.1
1825 * fixed lots of header problems (especially Linux/GNU specific)
1827 * dynamic loader preserves all registers
1829 * Roland McGrath provided support for handling of auxiliary objects in
1830 the ELF dynamic loader.
1832 * support for parallel builds is improved
1833 \f
1834 Version 2.0
1836 * GNU extensions are no longer declared by default. To enable them you
1837 must define the macro `_GNU_SOURCE' in your program or compile with
1838 `-D_GNU_SOURCE'.
1840 * The library has changed from using GNU ld symbol aliases to using weak
1841 symbols where available. The ELF object file format supports weak
1842 symbols; GNU ld also supports weak symbols in the a.out format. (There
1843 is also now support for other GNU ld extensions in ELF. Use the
1844 `--with-elf' option to configure to indicate you have ELF, and
1845 `--with-gnu-ld' if using GNU ld.) This change resulted in the deletion
1846 of many files which contained only symbol aliases, reducing the size of
1847 the source and the compiled library; many other files were renamed to
1848 less cryptic names previously occupied by the symbol alias files.
1849 There is a new header file <elf.h> for programs which operate on
1850 files in the ELF format.
1852 * Converted to Autoconf version 2, so `configure' has more options.
1853 Run `configure --help' to see the details.
1855 * The library can now be configured to build profiling, highly-optimized
1856 (but undebuggable), and/or shared libraries (ELF with GNU ld only). The
1857 `--enable-profile', `--enable-omitfp', and `--enable-shared' options to
1858 `configure' enable building these extra libraries. The shared library is
1859 built by default when using both ELF and GNU ld. When shared libraries
1860 are enabled, the new library `-ldl' is available for arbitrary run-time
1861 loading of shared objects; its interface is defined in <dlfcn.h>. The
1862 new header file <link.h> gives access to the internals of the run-time
1863 dynamic linker, `ld.so'. The shell script `ldd' is similar to the
1864 application of same name on other systems and it provides information
1865 about dynamically linked binaries.
1867 * The C library now provides the run-time support code for profiling
1868 executables compiled with `-pg'. Programs can control the profiling code
1869 through the interface in <sys/gmon.h>. The `gmon.out' files written by
1870 the GNU C library can be read only by GNU `gprof' (from GNU binutils);
1871 the support for this file format was contributed by David Mosberger-Tang.
1873 * The math code has been replaced with a math library based on fdlibm from
1874 Sun, and modified by JT Conklin and Ulrich Drepper with i387 support, by
1875 Ian Taylor with `float' functions and by Ulrich Drepper with `long double'
1876 functions. The math functions now reside in a separate library, so
1877 programs using them will need to use `-lm' their linking commands.
1879 * John C. Bowman contributed optimized ix87 assembler inline functions.
1881 * Ulrich Drepper has contributed support for an `/etc/nsswitch.conf'
1882 mechanism similar to that found in Solaris 2. This is now used for the
1883 group, passwd, hosts, networks, services, protocols, rpc, ethers,
1884 shadow, netgroup, publickey, and alias databases. The `nsswitch.conf'
1885 file controls what services are used for each individual database. This
1886 works by loading shared libraries with names specified in `nsswitch.conf',
1887 so service modules can be changed or added at any time without even
1888 relinking any program. Currently there are the file, db, and NIS based
1889 NSS services available.
1891 * The new functions `strtoq' and `strtouq' parse integer values from
1892 strings, like `strtol' and `strtoul', but they return `long long int' and
1893 `unsigned long long int' values, respectively (64-bit quantities).
1895 * The new functions `strtof' and `strtold' parse floating-point values from
1896 strings, like `strtod', but they return `float' and `long double' values,
1897 respectively (on some machines `double' and `long double' are the same).
1899 * Ulrich Drepper has contributed new implementations of the floating-point
1900 printing and reading code used in the `printf' family of functions and
1901 `strtod', `strtof', and `strtold'. These new functions are perfectly
1902 accurate, and much faster than the old ones.
1904 * The implementation of the POSIX locale model was completely rewritten by
1905 Ulrich Drepper. This includes the new programs `localedef' and `locale'
1906 to compile the POSIX locale definition.
1908 * The former dummy implementations of the strcoll and strxfrm function are
1909 now replaced by fully functional code contributed by Ulrich Drepper. The
1910 collation information comes from the POSIX locale definitions.
1912 * The new header <langinfo.h> defines an interface for accessing
1913 various locale-dependent data (using the locale chosen with `setlocale').
1915 * Ulrich Drepper has contributed a new suite of functions for operation on
1916 wide-character and multibyte-character strings, in <wchar.h>;
1917 and classification and case conversion of wide characters, in <wctype.h>.
1918 These new functions are conforming to the ISO C, Amendement 1 specification.
1920 * There is now a second implementation of the standard I/O library available.
1921 It comes from GNU libg++ as was written by Per Bothner, heavily modified
1922 by Hongjiu Lu and made thread safe by Ulrich Drepper.
1924 * You can now use positional parameter specifications in format strings
1925 for the `printf' and `scanf' families of functions. For example,
1926 `printf ("Number %2$d, Mr %1$s\n", "Jones", 6);'' prints
1927 ``Number 6, Mr Jones''. This is mainly useful when providing different
1928 format strings for different languages, whose grammars may dictate
1929 different orderings of the values being printed. To support this
1930 feature, the interface for `register_printf_handler' has changed; see
1931 the header file <printf.h> for details.
1933 * The `printf' and `scanf' families of functions now understand a new
1934 formatting flag for numeric conversions: the ' flag (e.g. %'d or %'f) says
1935 to group numbers as indicated by the locale; for `scanf' and friends, this
1936 says to accept as valid only a number with all the proper grouping
1937 separators in the right places. In the default "C" locale, numbers are
1938 not grouped; but locales for specific countries will define the usual
1939 conventions (i.e. separate thousands with `,' in the US locale).
1941 * The pgrp functions have been regularized, slightly incompatibly but much
1942 less confusingly. The core functions are now `getpgid' and `setpgid',
1943 which take arguments for the PID to operate on; the POSIX.1 `getpgrp' (no
1944 argument) and BSD `setpgrp' (identical to `setpgid') functions are
1945 provided for compatibility. There is no longer an incompatible `getpgrp'
1946 with an argument declared under _BSD_SOURCE; no BSD code uses it.
1948 * The new header file <fts.h> and suite of functions simplify programs that
1949 operate on directory trees. This code comes from 4.4 BSD.
1951 * The resolver code has been updated from the BIND 4.9.5-P1 release.
1952 Parts of the code were heavily modified by Ulrich Drepper to fit in the
1953 NSS scheme used in glibc.
1955 * There is a new malloc debugging hook `__memalign_hook'.
1957 * There are new typedefs `ushort' for `unsigned short int' and `uint' for
1958 `unsigned int' in <sys/types.h>. These are for compatibility only and
1959 their use is discouraged.
1961 * The `-lmcheck' library to enable standard malloc debugging hooks is now
1962 done differently, so that it works even without GNU ld.
1964 * New function `euidaccess' checks allowed access to a file like `access',
1965 but using the effective IDs instead of the real IDs.
1967 * The time zone data files have been updated for the latest and greatest
1968 local time conventions of the countries of the world.
1970 * The new function `dirfd' extracts the file descriptor used by a DIR stream;
1971 see <dirent.h>.
1973 * The new functions `ecvt', `fcvt', and `gcvt' provide an obsolete interface
1974 for formatting floating-point numbers. They are provided only for
1975 compatibility; new programs should use `sprintf' instead. There are
1976 also equivalent function for the `long double' floating-point type and
1977 all functions also exist in a reentrant form.
1979 * The new auxiliary library `-lutil' from 4.4 BSD contains various
1980 functions for maintaining the login-record files (primarily of use to
1981 system programs such as `login'), and convenient functions for
1982 allocating and initializing a pseudo-terminal (pty) device.
1984 * Ulrich Drepper has contributed new support for System V style
1985 shared memory and IPC on systems that support it.
1987 * Ulrich Drepper has contributed several miscellaneous new functions found
1988 in System V: The `hsearch' family of functions provide an effective
1989 implementation of hash tables; `a64l' and `l64a' provide a very simple
1990 binary to ASCII mapping; `drand48' and friends provide a 48-bit random
1991 number generator.
1993 * Ulrich Drepper has contributed new reentrant counterparts for the
1994 `random' and `hsearch' families of functions; `random_r', `hsearch_r', etc.
1996 * Ulrich Drepper has contributed new, highly-optimized versions of several
1997 string functions for the i486/Pentium family of processors.
1999 * Ulrich Drepper has updated the Linux-specific code, based largely
2000 on work done in Hongjiu Lu's version of GNU libc for Linux.
2001 The GNU library now supports Linux versions 2.0.10 and later,
2002 using the ELF object file format (i[3456]86-*-linux).
2004 * Andreas Schwab has ported the C library to Linux/m68k (m68k-*-linux).
2006 * David Mosberger-Tang and Richard Henderson have ported the C library
2007 to Linux/Alpha (alpha-*-linux). Richard Henderson contributed the
2008 dynamic linking support for ELF/Alpha.
2010 * Richard Henderson contributed several Alpha optimized assembler function
2011 for arithmetic and string handling.
2013 * Ulrich Drepper has contributed a new set of message catalog functions to
2014 support multiple languages using the <libintl.h> interface, for use with
2015 his new package GNU gettext. Translation volunteers have contributed
2016 catalogs of the library's messages in Spanish, German, and Korean.
2018 * For compatibility with XPG4, Ulrich Drepper has contributed the `gencat'
2019 program and the `catgets' function for reading the catalog files it
2020 creates. (The <libintl.h> interface is preferred; we include the
2021 <nl_types.h> interface using `catgets' only for source compatibility with
2022 programs already written to use it.)
2024 * New header file <values.h> gives SVID-compatible names for <limits.h>
2025 constants.
2027 * Various new macros, declarations, and small header files for compatibility
2028 with 4.4 BSD.
2030 * New function `group_member' is a convenient way to check if a process has
2031 a given effective group ID.
2033 * When using GCC 2.7 and later, the socket functions are now declared in a
2034 special way so that passing an argument of type `struct sockaddr_in *',
2035 `struct sockaddr_ns *', or `struct sockaddr_un *' instead of the generic
2036 `struct sockaddr *' type, does not generate a type-clash warning.
2038 * New function `error' declared in header file <error.h> is a convenient
2039 function for printing error messages and optionally exiting; this is the
2040 canonical function used in GNU programs. The new functions `err', `warn',
2041 and friends in header file <err.h> are the canonical 4.4 BSD interface for
2042 doing the same thing.
2044 * The <glob.h> interface has several new flags from 4.4 BSD that extend the
2045 POSIX.2 `glob' function to do ~ and {...} expansion.
2047 * New function `unsetenv' complements `setenv' for compatibility with 4.4 BSD.
2048 `clearenv' which is used in POSIX.9 is also available.
2050 * New function `getsid' returns session ID number on systems that support it.
2052 * We have incorporated the 4.4 BSD `db' library (version 1.85). New header
2053 files <db.h> and <mpool.h> provide a rich set of functions for several
2054 types of simple databases stored in memory and in files, and <ndbm.h> is
2055 an old `ndbm'-compatible interface using the `db' functions. Link with
2056 `-ldb' to get these functions.
2058 * New macro `strdupa' copies a string like `strdup', but uses local stack
2059 space from `alloca' instead of dynamic heap space from `malloc'.
2061 * New function `strnlen' is like `strlen' but searches only a given maximum
2062 number of characters for the null terminator. `stpncpy', `strndup' and
2063 `strndupa' are similar variants for the `stpcpy', `strdup' and `strdupa'
2064 function.
2066 * New function `statfs' in header <sys/statfs.h>.
2068 * The new <argz.h> and <envz.h> interfaces contributed by Miles Bader
2069 provide convenient functions for operating on blocks of null-terminated
2070 strings.
2072 * A new suite of functions in <utmp.h> handle all the details of reading
2073 and writing the utmp file.
2075 * An implementation of the NIS/YP(tm) based NSS service was contributed by
2076 Thorsten Kukuk.
2078 * Paul Eggert and Ulrich Drepper modified the `strftime' function to be
2079 completely POSIX compliant and also implemented the extended functionality
2080 to handle alternate digit representation and alternate era date formats.
2082 * Ulrich Drepper provided an implementation of the `strptime' function
2083 defined in XPG4.2 which transforms a string into a `struct tm' value.
2085 * Paul Eggert provided the tzselect shell script as part of the timezone
2086 code. The shell script makes it easy to select the correct timezone
2087 specification.
2089 * The implementation of the malloc family of functions is completely replaced
2090 by a new implementation by Doug Lea with many improvements by Wolfram Gloger.
2091 The implementation uses the mmap function (if available) and it is
2092 optimized for the use in multi threaded programs.
2094 * Ulrich Drepper contributed a MD5 "encryption" for the crypt family of
2095 functions. This new functionality is usable by specifying a special
2096 salt string and it is compatible with implementation on *BSD systems.
2098 * Lots of functions from the XPG4.2 standard were added by Ulrich Drepper:
2099 `getsubopt' to handle second level command line options, `bsd_signal'
2100 to access BSD style `signal' functionality, the obsolete `regexp' style
2101 expression matcher.
2103 * the `lchown' function is available on system which support this
2104 functionality.
2106 * The implementation of the shadow password handling function was contributed
2107 by Ulrich Drepper.
2109 * David Mosberger-Tang changed the SunRPC implementation to be 64bit safe.
2111 * POSIX.1g support was added. The <sys/select.h> header is available,
2112 `isfdtype' and `pselect' are implemented. Craig Metz contributed an
2113 implementation of `getaddrinfo'.
2114 \f
2115 Version 1.09
2117 * For cross-compilation you should now set `BUILD_CC' instead of `HOST_CC'.
2119 * New header file <fstab.h> and new functions `getfsspec', `getfsent' and
2120 friends, for parsing /etc/fstab. This code comes from 4.4 BSD.
2122 * The new function `daemon' from 4.4 BSD is useful for server programs that
2123 want to put themselves in the background.
2125 * Joel Sherrill has contributed support for several standalone boards that
2126 run without an operating system.
2128 * `printf', `scanf' and friends now accept a `q' type modifier for long
2129 long int as well as `ll'. Formats using these might be `%qu' or `%lld'.
2131 * All of the code taken from BSD (notably most of the math and networking
2132 routines) has been updated from the BSD 4.4-Lite release.
2134 * The resolver code has been updated from the BIND-4.9.3-BETA9 release.
2136 * The new functions `getdomainname' and `setdomainname' fetch or change the
2137 YP/NIS domain name. These are system calls which exist on systems which
2138 have YP (aka NIS).
2140 * The time zone data files have been updated for the latest international
2141 conventions.
2143 * The SunRPC programs `portmap' and `rpcinfo' are now installed in
2144 $(sbindir) (usually /usr/local/sbin) instead of $(bindir).
2145 \f
2146 Version 1.08
2148 * The C library now includes support for Sun RPC, from Sun's free
2149 RPCSRC-4.0 distribution. The `portmap', `rpcinfo', and `rpcgen' programs
2150 are included. (There is still no support for YP.)
2152 * Tom Quinn has contributed a port of the C library to SGI machines running
2153 Irix 4 (mips-sgi-irix4).
2155 * The new `lockf' function is a simplified interface to the locking
2156 facilities of `fcntl', included for compatibility.
2158 * New time functions `timegm', `timelocal', and `dysize' for compatibility.
2160 * New header file <sys/timeb.h> and new function `ftime' for compatibility.
2162 * New header files <poll.h> and <sys/poll.h> and new function `poll' for
2163 compatibility.
2165 * The error message printed by `assert' for a failed assertion now includes
2166 the name of the program (if using GNU ld) and the name of the calling
2167 function (with versions of GCC that support this).
2169 * The `psignal' function is now declared in <signal.h>, not <stdio.h>.
2171 * The library now includes the <sys/mman.h> header file and memory
2172 management functions `mmap', `munmap', `mprotect', `msync', and
2173 `madvise', on systems that support those facilities.
2175 * The interface for `mcheck' has changed slightly: the function called to
2176 abort the program when an allocation inconsistency is detected now takes
2177 an argument that indicates the type of failure. The new function
2178 `mprobe' lets you request a consistency check for a particular block at
2179 any time (checks are normally done only when you call `free' or `realloc'
2180 on a block).
2182 * It is now possible to easily cross-compile the C library, building on one
2183 system a library to run on another machine and/or operating system. All
2184 you need to do is set the variable `HOST_CC' in `configparms' to the
2185 native compiler for programs to run on the machine you are building on (a
2186 few generator programs are used on Unix systems); set `CC' to the
2187 cross-compiler.
2189 * The new function `fexecve' (only implemented on the GNU system) executes
2190 a program file given a file descriptor already open on the file.
2191 \f
2192 Version 1.07
2194 * Brendan Kehoe has contributed most of a port to the DEC Alpha
2195 running OSF/1 (alpha-dec-osf1). He says it is 75% complete.
2197 * You can set the variable `libprefix' in `configparms' to specify a prefix
2198 to be prepended to installed library files; this makes it easy to install
2199 the GNU C library to be linked as `-lgnuc' or whatever.
2201 * The new `stpncpy' is a cross between `stpcpy' and `strncpy': It
2202 copies a limited number of characters from a string, and returns the
2203 address of the last character written.
2205 * You no longer need to check for whether the installed `stddef.h' is
2206 compatible with the GNU C library. configure now checks for you.
2208 * You can now define a per-stream `fileno' function to convert the
2209 stream's cookie into an integral file descriptor.
2211 * ``malloc (0)'' no longer returns a null pointer. Instead, it
2212 allocates zero bytes of storage, and returns a unique pointer which
2213 you can pass to `realloc' or `free'. The behavior is undefined if
2214 you dereference this pointer.
2216 * The C library now runs on Sony NEWS m68k machines running either
2217 NewsOS 3 or NewsOS 4.
2219 * The new `syscall' function is a system-dependent primitive function
2220 for invoking system calls. It has the canonical behavior on Unix
2221 systems, including unreliable return values for some calls (such as
2222 `pipe', `fork' and `getppid').
2224 * The error code `EWOULDBLOCK' is now obsolete; it is always defined
2225 to `EAGAIN', which is the preferred name. On systems whose kernels
2226 use two distinct codes, the C library now translates EWOULDBLOCK to
2227 EAGAIN in every system call function.
2228 \f
2229 Version 1.06
2231 * The GNU C Library Reference Manual is now distributed with the library.
2232 `make dvi' will produce a DVI file of the printed manual.
2233 `make info' will produce Info files that you can read on line using C-h i
2234 in Emacs or the `info' program.
2235 Please send comments on the manual to bug-glibc-manual@gnu.org.
2237 * The library now supports SVR4 on i386s (i386-unknown-sysv4).
2239 * Brendan Kehoe has contributed a port to Sun SPARCs running Solaris 2.
2241 * Jason Merrill has contributed a port to the Sequent Symmetry running
2242 Dynix version 3 (i386-sequent-dynix).
2244 * The library has been ported to i386s running SCO 3.2.4 (also known as SCO
2245 ODT 2.0; i386-unknown-sco3.2.4) or SCO 3.2 (i386-unknown-sco3.2).
2247 * New function `memory_warnings' lets you arrange to get warnings when
2248 malloc is running out of memory to allocate, like Emacs gives you.
2250 * The C library now contains the relocating allocator used in Emacs 19 for
2251 its editing buffers. This allocator (ralloc) minimizes allocation
2252 overhead and fragmentation by moving allocated regions around whenever it
2253 needs to. You always refer to a ralloc'd region with a "handle" (a
2254 pointer to a pointer--an object of type `void **').
2256 * There is a new `printf' format: `%m' gives you the string corresponding
2257 to the error code in `errno'.
2259 * In `scanf' formats, you can now use `%as' or `%a[' to do the normal `%s'
2260 or `%[' conversion, but instead of filling in a fixed-sized buffer you
2261 pass, the `a' modifier says to fill in a `char **' you pass with a
2262 malloc'd string.
2264 * The `fnmatch' function supports the new flag bits `FNM_LEADING_DIR' and
2265 `FNM_CASEFOLD'. `FNM_LEADING_DIR' lets a pattern like `foo*' match a
2266 name like `foo/bar'. `FNM_CASEFOLD' says to ignore case in matching.
2268 * `mkstemp' is a traditional Unix function to atomically create and open a
2269 uniquely-named temporary file.
2270 \f
2271 Version 1.05
2273 * The standard location for the file that says what the local timezone is
2274 has changed again. It is now `/usr/local/etc/localtime' (or more
2275 precisely, `${prefix}/etc/localtime') rather than `/etc/localtime'.
2277 * The distribution no longer contains any files with names longer than 14
2278 characters.
2280 * `struct ttyent' has two new flag bits: TTY_TRUSTED and TTY_CONSOLE.
2281 These are set by the new `trusted' and `console' keywords in `/etc/ttys'.
2283 * New functions `ttyslot' and `syslog' from 4.4 BSD.
2284 \f
2285 Version 1.04
2287 * The configuration process has changed quite a bit. The `configure'
2288 script is now used just like the configuration scripts for other GNU
2289 packages. The `sysdeps' directory hierarchy is much rearranged.
2290 The file `INSTALL' explains the new scheme in detail.
2292 * The header files no longer need to be processed into ANSI C and
2293 traditional C versions. There is just one set of files to install, and
2294 it will work with ANSI or old C compilers (including `gcc -traditional').
2296 * Brendan Kehoe and Ian Lance Taylor have ported the library to the
2297 MIPS DECStation running Ultrix 4.
2299 * The Sun 4 startup code (crt0) can now properly load SunOS 4 shared libraries.
2300 Tom Quinn contributed the initial code. The GNU C library can NOT yet be
2301 made itself into a shared library.
2303 * Yet further improved support for the i386, running 4.3 BSD-like systems
2304 (such as Mach 3 with the Unix single-server), or System V.
2306 * New function `strncasecmp' to do case-insensitive string comparison
2307 with limited length.
2309 * New function `strsep' is a reentrant alternative to `strtok'.
2311 * New functions `scandir' and `alphasort' for searching directories.
2313 * New function `setenv' is a better interface to `putenv'.
2315 * Ian Lance Taylor has contributed an implementation of the SVID `ftw'
2316 function for traversing a directory tree.
2318 * The GNU obstack package is now also part of the C library.
2319 The new function `open_obstack_stream' creates a stdio stream that
2320 writes onto an obstack; `obstack_printf' and `obstack_vprintf' do
2321 formatted output directly to an obstack.
2323 * Miscellaneous new functions: reboot, nice, sigaltstack (4.4 BSD only),
2324 cfmakeraw, getusershell, getpass, swab, getttyent, seteuid, setegid.
2326 * `FNM_FILE_NAME' is another name for `FNM_PATHNAME', used with `fnmatch'.
2328 * The new functions `strfry' and `memfrob' do mysterious and wonderful
2329 things to your strings.
2331 * There are some new test programs: test-fseek, testmb, and testrand.
2333 * Some work has been done to begin porting the library to 4.4 BSD and Linux.
2334 These ports are not finished, but are a good starting place for really
2335 supporting those systems.
2337 * `/etc/localtime' is now the standard location for the file that says what
2338 the local timezone is, rather than `/usr/local/lib/zoneinfo/localtime'.
2339 This follows the general principle that `/etc' is the place for all local
2340 configuration files.
2342 * The C library header files now use `extern "C"' when used by the C++
2343 compiler, so the C library should now work with C++ code.
2345 * The header file <bstring.h> is gone. <string.h> now declares bcopy,
2346 bcmp, bzero, and ffs. (Update: nowadays these functions are declared
2347 in <strings.h>.)
2349 * Mike Haertel (of GNU e?grep and malloc fame) has written a new sorting
2350 function which uses the `merge sort' algorithm, and is said to be
2351 significantly faster than the old GNU `qsort' function. Merge sort is
2352 now the standard `qsort' function. The new algorithm can require a lot
2353 of temporary storage; so, the old sorting function is called when the
2354 required storage is not available.
2356 * The C library now includes Michael Glad's Ultra Fast Crypt, which
2357 provides the Unix `crypt' function, plus some other entry points.
2359 * The code and header files taken from 4.4 BSD have been updated with the
2360 latest files released from Berkeley.
2361 \f
2362 ----------------------------------------------------------------------
2363 Copyright information:
2365 Copyright (C) 1992-2013 Free Software Foundation, Inc.
2367 Permission is granted to anyone to make or distribute verbatim copies
2368 of this document as received, in any medium, provided that the
2369 copyright notice and this permission notice are preserved,
2370 thus giving the recipient permission to redistribute in turn.
2372 Permission is granted to distribute modified versions
2373 of this document, or of portions of it,
2374 under the above conditions, provided also that they
2375 carry prominent notices stating who last changed them.
2376 \f
2377 Local variables:
2378 version-control: never
2379 fill-column: 76
2380 End: