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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 2.18.1
10 * The following bugs are resolved with this release:
12 14143, 14155, 14547, 14699, 15073, 15128, 15532, 15427, 15522, 15680,
13 15723, 15734, 15735, 15797, 15892, 15895, 15909, 15915, 15917, 15946,
14 15996, 16072, 16150, 16169, 16387, 16414, 16430, 16431, 16510, 16617,
15 16618, 16885, 16916, 16943, 16958, 17048, 17137, 17187, 17325, 17625,
16 17630, 18007, 18104, 18287.
18 * CVE-2014-8121 The NSS backends shared internal state between the getXXent
19 and getXXbyYY NSS calls for the same database, causing a denial-of-service
20 condition in some applications.
22 * A buffer overflow in gethostbyname_r and related functions performing DNS
23 requests has been fixed. If the NSS functions were called with a
24 misaligned buffer, the buffer length change due to pointer alignment was
25 not taken into account. This could result in application crashes or,
26 potentially arbitrary code execution, using crafted, but syntactically
27 valid DNS responses. (CVE-2015-1781)
29 * Support for powerpc64le has been added.
31 * CVE-2104-7817 The wordexp function could ignore the WRDE_NOCMD flag
32 under certain input conditions resulting in the execution of a shell for
33 command substitution when the applicaiton did not request it. The
34 implementation now checks WRDE_NOCMD immediately before executing the
35 shell and returns the error WRDE_CMDSUB as expected.
37 * CVE-2012-3406 printf-style functions could run into a stack overflow when
38 processing format strings with a large number of format specifiers.
40 * CVE-2014-9402 The nss_dns implementation of getnetbyname could run into an
41 infinite loop if the DNS response contained a PTR record of an unexpected
42 format.
44 * CVE-2014-4043 The posix_spawn_file_actions_addopen implementation did not
45 copy the path argument. This allowed programs to cause posix_spawn to
46 deference a dangling pointer, or use an unexpected pathname argument if
47 the string was modified after the posix_spawn_file_actions_addopen
48 invocation.
50 * Locale names, including those obtained from environment variables (LANG
51 and the LC_* variables), are more tightly checked for proper syntax.
52 setlocale will now fail (with EINVAL) for locale names that are overly
53 long, contain slashes without starting with a slash, or contain ".." path
54 components. (CVE-2014-0475) Previously, some valid locale names were
55 silently replaced with the "C" locale when running in AT_SECURE mode
56 (e.g., in a SUID program). This is no longer necessary because of the
57 additional checks.
59 * Support for loadable gconv transliteration modules has been removed.
60 The support for transliteration modules has been non-functional for
61 over a decade, and the removal is prompted by security defects. The
62 normal gconv conversion modules are still supported. Transliteration
63 with //TRANSLIT is still possible, and the //IGNORE specifier
64 continues to be supported. (CVE-2014-5119)
66 * Decoding a crafted input sequence in the character sets IBM933, IBM935,
67 IBM937, IBM939, IBM1364 could result in an out-of-bounds array read,
68 resulting a denial-of-service security vulnerability in applications which
69 use functions related to iconv. (CVE-2014-6040)
71 * CVE-2013-4237 The readdir_r function could write more than NAME_MAX bytes
72 to the d_name member of struct dirent, or omit the terminating NUL
73 character. (Bugzilla #14699).
75 * CVE-2013-4458 Stack overflow in getaddrinfo with large number of results
76 for AF_INET6 has been fixed (Bugzilla #16072).
78 * CVE-2013-4332 The pvalloc, valloc, memalign, posix_memalign and
79 aligned_alloc functions could allocate too few bytes or corrupt the
80 heap when passed very large allocation size values (Bugzilla #15855,
81 #15856, #15857).
83 * CVE-2012-4424 The strcoll implementation uses malloc to cache indices and
84 rules for large collation sequences to optimize multiple passes and falls
85 back to alloca if malloc fails, resulting in a possible stack overflow.
86 The implementation now falls back to an uncached collation sequence lookup
87 if malloc fails.
88 \f
89 Version 2.18
91 * The following bugs are resolved with this release:
93 2546, 2560, 5159, 6809, 7006, 10060, 10062, 10283, 10357, 10686, 11120,
94 11561, 12310, 12387, 12492, 12515, 12723, 13550, 13889, 13951, 13988,
95 14142, 14155, 14176, 14200, 14256, 14280, 14293, 14317, 14327, 14478,
96 14496, 14582, 14686, 14699, 14812, 14888, 14894, 14907, 14908, 14909,
97 14920, 14952, 14964, 14981, 14982, 14985, 14991, 14994, 14996, 15000,
98 15003, 15006, 15007, 15014, 15020, 15022, 15023, 15036, 15054, 15055,
99 15062, 15078, 15084, 15085, 15086, 15100, 15160, 15214, 15221, 15232,
100 15234, 15283, 15285, 15287, 15304, 15305, 15307, 15309, 15327, 15330,
101 15331, 15335, 15336, 15337, 15339, 15342, 15346, 15359, 15361, 15366,
102 15380, 15381, 15394, 15395, 15405, 15406, 15409, 15416, 15418, 15419,
103 15423, 15424, 15426, 15427, 15429, 15431, 15432, 15441, 15442, 15448,
104 15465, 15480, 15485, 15488, 15490, 15492, 15493, 15497, 15506, 15522,
105 15529, 15532, 15536, 15553, 15577, 15583, 15618, 15627, 15631, 15654,
106 15655, 15666, 15667, 15674, 15711, 15755, 15759, 15797, 15892, 15893,
107 15895, 16882.
109 * CVE-2013-4332 The pvalloc, valloc, memalign, posix_memalign and
110 aligned_alloc functions could allocate too few bytes or corrupt the
111 heap when passed very large allocation size values (Bugzilla #15855,
112 #15856, #15857).
114 * CVE-2013-4788 The pointer guard used for pointer mangling was not
115 initialized for static applications resulting in the security feature
116 being disabled. The pointer guard is now correctly initialized to a
117 random value for static applications. Existing static applications need
118 to be recompiled to take advantage of the fix (bug 15754).
120 * CVE-2012-4412 The strcoll implementation caches indices and rules for
121 large collation sequences to optimize multiple passes. This cache
122 computation may overflow for large collation sequences and may cause a
123 stack or buffer overflow. This is now fixed to use a slower algorithm
124 which does not use a cache if there is an integer overflow.
126 * CVE-2013-2207 Incorrectly granting access to another user's pseudo-terminal
127 has been fixed by disabling the use of pt_chown (Bugzilla #15755).
128 Distributions can re-enable building and using pt_chown via the new configure
129 option `--enable-pt_chown'. Enabling the use of pt_chown carries with it
130 considerable security risks and should only be used if the distribution
131 understands and accepts the risks.
133 * CVE-2013-0242 Buffer overrun in regexp matcher has been fixed (Bugzilla
134 #15078).
136 * CVE-2013-1914 Stack overflow in getaddrinfo with many results has been
137 fixed (Bugzilla #15330).
139 * Add support for calling C++11 thread_local object destructors on thread
140 and program exit. This needs compiler support for offloading C++11
141 destructor calls to glibc.
143 * Improved worst case performance of libm functions with double inputs and
144 output.
146 * Support for priority inherited mutexes in pthread condition variables on
147 non-x86 architectures.
149 * Port to Xilinx MicroBlaze contributed by David Holsgrove.
151 * Optimized string functions for AArch64. Implemented by Marcus Shawcroft.
153 * Optimized string functions for ARM. Implemented by Will Newton and
154 Richard Henderson.
156 * Optimized libm functions for SPARC. Implemented by David S. Miller.
158 * Support for building more of ARM glibc as Thumb-2 code. Implemented by
159 Richard Henderson.
161 * Support for building most of MIPS glibc as MIPS16 code. Implemented by
162 Chung-Lin Tang, Maciej W. Rozycki and Maxim Kuvyrkov.
164 * Added a benchmark framework to track performance of functions in glibc.
166 * New <math.h> macro named issignaling to check for a signaling NaN (sNaN).
167 It is based on draft TS 18661 and currently enabled as a GNU extension.
169 * On Linux, the clock function now uses the clock_gettime system call
170 for improved precision, rather than old times system call.
172 * Added new API functions pthread_getattr_default_np and
173 pthread_setattr_default_np to get and set the default pthread
174 attributes of a process.
176 * Added support for TSX lock elision for pthread mutexes on i386 and x86-64.
177 This may improve lock scaling of existing programs on TSX capable systems.
178 When the --enable-lock-elision=yes parameter is specified at configure
179 time lock elision will be enabled by default for all PTHREAD_MUTEX_DEFAULT
180 mutexes.
182 * Support added for AT_HWCAP2 (to coincide with Linux kernel 3.10
183 availability). Implemented by Ryan S. Arnold.
185 * Support added for POWER8 platform. Implemented by Ryan S. Arnold.
186 \f
187 Version 2.17
189 * The following bugs are resolved with this release:
191 1349, 3439, 3479, 3665, 5044, 5246, 5298, 5400, 6530, 6677, 6778, 6808,
192 9685, 9914, 10014, 10038, 10114, 10191, 10631, 10873, 11438, 11607, 11638,
193 11741, 12140, 13013, 13412, 13542, 13601, 13603, 13604, 13629, 13679,
194 13696, 13698, 13717, 13741, 13759, 13761, 13763, 13881, 13939, 13950,
195 13952, 13966, 14042, 14047, 14090, 14150, 14151, 14152, 14154, 14157,
196 14166, 14173, 14195, 14197, 14237, 14246, 14251, 14252, 14283, 14298,
197 14303, 14307, 14328, 14331, 14336, 14337, 14347, 14349, 14368, 14376,
198 14417, 14447, 14459, 14476, 14477, 14501, 14505, 14510, 14516, 14518,
199 14519, 14530, 14532, 14538, 14543, 14544, 14545, 14557, 14562, 14568,
200 14576, 14579, 14583, 14587, 14595, 14602, 14610, 14621, 14638, 14645,
201 14648, 14652, 14660, 14661, 14669, 14672, 14683, 14694, 14716, 14719,
202 14743, 14767, 14783, 14784, 14785, 14793, 14796, 14797, 14801, 14803,
203 14805, 14807, 14811, 14815, 14821, 14822, 14824, 14828, 14831, 14833,
204 14835, 14838, 14856, 14863, 14865, 14866, 14868, 14869, 14871, 14872,
205 14879, 14889, 14893, 14898, 14914.
207 * Optimization of memcpy for MIPS.
209 * CVE-2011-4609 svc_run() produces high cpu usage when accept fails with
210 EMFILE has been fixed (Bugzilla #14889).
212 * The add-on ports collection is now distributed in the "ports" subdirectory
213 of the main GNU C Library distribution, rather than separately.
215 * Port to ARM AArch64 contributed by Linaro.
217 * Support for STT_GNU_IFUNC symbols added for s390 and s390x.
218 Optimized versions of memcpy, memset, and memcmp added for System z10 and
219 zEnterprise z196.
220 Implemented by Andreas Krebbel.
222 * The new function secure_getenv allows secure access to the environment,
223 returning NULL if running in a SUID/SGID process. This function replaces
224 the internal function __secure_getenv.
226 * SystemTap static probes have been added into the dynamic linker.
227 Implemented by Gary Benson.
229 * Optimizations of string functions strstr, strcasestr and memmem.
230 Implemented by Maxim Kuvyrkov.
232 * The minimum Linux kernel version that this version of the GNU C Library
233 can be used with is 2.6.16.
235 * Optimizations of string functions memchr, wcschr, wcscpy, and wcsrchr for
236 powerpc POWER7. Implemented by Will Schmidt.
238 * New configure option --disable-nscd builds the C library such that it
239 never attempts to contact the Name Service Caching Daemon (nscd).
240 New configure option --disable-build-nscd avoids building nscd itself;
241 this is the default if --disable-nscd is used.
243 * Improved support for cross-compilation, including cross-testing and
244 bootstrap builds without a previously built glibc.
246 * Several testsuite tests are now able to test multiple IFUNC variants of an
247 interface, rather than just testing the one that would be chooen by
248 default.
250 * New configure options --with-bugurl and --with-pkgversion, for
251 distributors to use to embed their bug-reporting and package version
252 information in --help and --version output.
254 * The ttyname and ttyname_r functions on Linux now fall back to searching for
255 the tty file descriptor in /dev/pts or /dev if /proc is not available. This
256 allows creation of chroots without the procfs mounted on /proc.
258 * The `crypt' function now fails if passed salt bytes that violate the
259 specification for those values. On Linux, the `crypt' function will
260 consult /proc/sys/crypto/fips_enabled to determine if "FIPS mode" is
261 enabled, and fail on encrypted strings using the MD5 or DES algorithm
262 when the mode is enabled.
264 * The `clock_*' suite of functions (declared in <time.h>) is now available
265 directly in the main C library. Previously it was necessary to link with
266 -lrt to use these functions. This change has the effect that a
267 single-threaded program that uses a function such as `clock_gettime' (and
268 is not linked with -lrt) will no longer implicitly load the pthreads
269 library at runtime and so will not suffer the overheads associated with
270 multi-thread support in other code such as the C++ runtime library.
272 * New locales: ayc_PE, doi_IN, ia_FR, mni_IN, nhn_MX, niu_NU, niu_NZ,
273 sat_IN, and szl_PL.
274 \f
275 Version 2.16
277 * The following bugs are resolved with this release:
279 174, 208, 350, 369, 411, 706, 766, 887, 2074, 2541, 2547, 2548, 2550,
280 2551, 2552, 2553, 2554, 2562, 2563, 2565, 2566, 2570, 2576, 2636, 2678,
281 3335, 3440, 3748, 3768, 3866, 3868, 3906, 3976, 3992, 4026, 4108, 4596,
282 4822, 5077, 5461, 5805, 5993, 6471, 6486, 6578, 6649, 6730, 6770, 6794,
283 6884, 6890, 6894, 6895, 6907, 6911, 6959, 7064, 9739, 9902, 10110, 10135,
284 10140, 10153, 10210, 10254, 10346, 10375, 10545, 10716, 10846, 11174,
285 11261, 11322, 11365, 11451, 11494, 11521, 11677, 11837, 11959, 12047,
286 12097, 12193, 12194, 12297, 12298, 12301, 12340, 12354, 12416, 12495,
287 13058, 13223, 13361, 13525, 13526, 13527, 13528, 13529, 13530, 13531,
288 13532, 13533, 13547, 13551, 13552, 13553, 13555, 13556, 13559, 13563,
289 13566, 13576, 13579, 13583, 13592, 13594, 13613, 13618, 13637, 13656,
290 13658, 13673, 13691, 13695, 13704, 13705, 13706, 13718, 13726, 13738,
291 13739, 13743, 13750, 13758, 13760, 13761, 13775, 13786, 13787, 13792,
292 13806, 13824, 13840, 13841, 13844, 13846, 13848, 13851, 13852, 13854,
293 13871, 13872, 13873, 13879, 13882, 13883, 13884, 13885, 13886, 13892,
294 13895, 13908, 13910, 13911, 13912, 13913, 13914, 13915, 13916, 13917,
295 13918, 13919, 13920, 13921, 13922, 13923, 13924, 13926, 13927, 13928,
296 13938, 13941, 13942, 13954, 13955, 13956, 13963, 13967, 13968, 13970,
297 13973, 13979, 13983, 13986, 13996, 14012, 14027, 14033, 14034, 14036,
298 14040, 14043, 14044, 14048, 14049, 14050, 14053, 14055, 14059, 14064,
299 14075, 14080, 14083, 14103, 14104, 14109, 14112, 14117, 14122, 14123,
300 14134, 14153, 14183, 14188, 14199, 14210, 14218, 14229, 14241, 14273,
301 14277, 14278.
303 * Support for the x32 ABI on x86-64 added. The x32 target is selected by
304 configuring glibc with:
305 BUILD_CC='gcc' CC='gcc -mx32' CXX='g++ -mx32'
306 Visit <http://sites.google.com/site/x32abi/> for more x32 ABI info.
307 Implemented by H.J. Lu.
309 * ISO C11 support:
311 + define static_assert
313 + do not declare gets
315 + declare at_quick_exit and quick_exit also for ISO C11
317 + aligned_alloc. NB: The code is deliberately allows the size parameter
318 to not be a multiple of the alignment. This is a moronic requirement
319 in the standard but it is only a requirement on the caller, not the
320 implementation.
322 + timespec_get added
324 + uchar.h support added
326 + CMPLX, CMPLXF, CMPLXL added
328 Implemented by Ulrich Drepper.
330 * Support for the IA-64 has been moved to ports.
332 * Remove support for anything but ELF binary format
334 * Checking versions of poll, ppoll added.
335 Implemented by Ulrich Drepper.
337 * More generic and 64-bit performance optimizations to math functions.
338 Implemented by Ulrich Drepper.
340 * New configure option --enable-obsolete-rpc makes the deprecated RPC
341 headers and functions available at compile time as they were before
342 version 2.14. This option will be removed at some time in the future
343 after the TI-RPC library becomes fully sufficient for the needs of
344 existing applications.
346 * Compatibility code for Linux kernel versions before 2.4 has been removed.
347 Note that glibc is not expected to work with any Linux kernel version
348 before 2.6.
350 * New header <sys/auxv.h> and function getauxval allowing easy access to
351 the AT_* key-value pairs passed from the Linux kernel. The header also
352 defines the HWCAP_* bits associated with the AT_HWCAP key.
354 * New locales: mag_IN
356 * New configure option --enable-systemtap builds SystemTap static probes
357 into libc for setjmp and longjmp and into libpthread for various operations.
358 So far the setjmp/longjmp probes and some of the libpthread probes are
359 provided only for i*86 and x86_64.
360 Implemented by Roland McGrath and Rayson Ho.
362 * Optimized expf for x86-32 and x86-64. Implemented by Liubov Dmitrieva.
364 * More optimized functions for PowerPC. Implemented by Adhemerval Zanella
365 and Will Schmidt.
367 * More optimized functions for SPARC. Implemented by David S. Miller.
369 * Improved support for cross-compilation, especially bootstrap builds
370 without a previously built glibc.
372 * Ports for the TILE-Gx and TILEPro families of processors. Contributed by
373 Chris Metcalf from Tilera.
375 * Support for the old ARM ABI has been removed from ports. Only the EABI is
376 now supported for ARM processors.
378 * The hard-float variant of the ARM EABI now uses /lib/ld-linux-armhf.so.3
379 as the name of the dynamic linker, to distinguish it from the
380 /lib/ld-linux.so.3 dynamic linker used for the base EABI.
382 * Support for CRIS has been removed from ports.
384 * A new class of installed header has been documented for low-level
385 platform-specific functionality. PowerPC added the first instance with a
386 function to provide time base register access. Contributed by Tulio
387 Magno Quites Machado Filho.
389 * ix86 configurations now install header files that are consistent with
390 what x86-64 configurations install. These same header files can be used
391 for -m32, -m64, or -mx32 builds.
392 Contributed by H.J. Lu.
394 * Math library bug fixes. A thorough audit of all open math library bugs was
395 conducted by Joseph Myers. Significant progress was made on many math
396 library bugs resulting in more accurate exceptions and function results.
397 Many thanks to all those that contributed including Andreas Jaeger for his
398 patch review and work on the x87 trigonometric instruction issues.
400 * Timezone data is no longer installed. Timezone-related binaries and scripts
401 will continue to be installed. Users should obtain their timezone data from
402 their distribution provider or from the tzdata package at
403 <ftp://munnari.oz.au/pub/>.
404 \f
405 Version 2.15
407 * The following bugs are resolved with this release:
409 6779, 6783, 9696, 10103, 10709, 11589, 11929, 12403, 12786, 12840, 12847,
410 12868, 12852, 12874, 12885, 12892, 12906, 12907, 12922, 12935, 12962,
411 13007, 13021, 13061, 13062, 13067, 13068, 13085, 13088, 13090, 13092,
412 13096, 13114, 13118, 13123, 13134, 13138, 13147, 13150, 13166, 13179,
413 13185, 13189, 13192, 13268, 13276, 13282, 13291, 13305, 13328, 13335,
414 13337, 13344, 13358, 13367, 13413, 13416, 13423, 13439, 13446, 13472,
415 13484, 13506, 13515, 13523, 13524, 13538, 13540
417 * New program pldd to list loaded object of a process
418 Implemented by Ulrich Drepper.
420 * Add nss_db support back to glibc. No more dependency on Berkeley db
421 and support for initgroups lookups.
422 Implemented by Ulrich Drepper.
424 * Optimized strcpy, strncpy, stpcpy, stpncpy for SSE2 and SSSE3 on x86-32.
425 Contributed by HJ Lu.
427 * Improved strcpy, strncpy, stpcpy, stpncpy for SSE2 and SSSE3 on x86-64.
428 Contributed by HJ Lu.
430 * Optimized strcat, strncat on x86-64 and optimized wcscmp, wcslen, strnlen
431 on x86-32 and x86-64.
432 Contributed by Liubov Dmitrieva.
434 * Optimized strchr and strrchr for SSE on x86-32.
435 Contributed by Liubov Dmitrieva.
437 * Optimized memchr, memrchr, rawmemchr, memcmp, wmemcmp, wcschr, wcscpy
438 for x86-64 and x86-32.
439 Contributed by Liubov Dmitrieva.
441 * New interfaces: scandirat, scandirat64
442 Implemented by Ulrich Drepper.
444 * Checking versions of FD_SET, FD_CLR, and FD_ISSET added.
445 Implemented by Ulrich Drepper.
447 * nscd now also caches the netgroup database.
448 Implemented by Ulrich Drepper.
450 * Integrate libm with gcc's -ffinite-math-only option.
451 Implemented by Ulrich Drepper.
453 * Lots of generic, 64-bit, and x86-64-specific performance optimizations
454 to math functions. Implemented by Ulrich Drepper.
456 * Optimized strcasecmp and strncasecmp for AVX on x86-64.
457 Implemented by Ulrich Drepper.
459 * New Linux interfaces: process_vm_readv, process_vm_writev
461 * Optimized strcasecmp and strncasecmp for SSSE3 and SSE4.2 on x86-32.
462 Implemented by Ulrich Drepper.
464 * Optimized nearbyint and strcasecmp for PPC.
465 Implemented by Adhemerval Zanella.
467 * New locales: bho_IN, unm_US, es_CU, ta_LK
468 \f
469 Version 2.14
471 * The following bugs are resolved with this release:
473 386, 6420, 7101, 9730, 9732, 9809, 10138, 10149, 10157, 11099, 11257,
474 11258, 11487, 11532, 11558, 11578, 11634, 11653, 11668, 11697, 11724,
475 11781, 11799, 11820, 11837, 11857, 11869, 11892, 11895, 11901, 11945,
476 11947, 11952, 11987, 12052, 12083, 12158, 12178, 12200, 12346, 12350,
477 12393, 12420, 12432, 12445, 12449, 12453, 12454, 12460, 12469, 12489,
478 12509, 12510, 12511, 12518, 12527, 12541, 12545, 12551, 12582, 12583,
479 12587, 12597, 12601, 12611, 12625, 12626, 12631, 12650, 12653, 12655,
480 12660, 12671, 12681, 12684, 12685, 12711, 12713, 12714, 12717, 12723,
481 12724, 12734, 12738, 12746, 12766, 12775, 12777, 12782, 12788, 12792,
482 12795, 12811, 12813, 12814, 12841
484 * The RPC implementation in libc is obsoleted. Old programs keep working
485 but new programs cannot be linked with the routines in libc anymore.
486 Programs in need of RPC functionality must be linked against TI-RPC.
487 The TI-RPC implementation is IPv6 enabled and there are other benefits.
489 Visible changes of this change include (obviously) the inability to link
490 programs using RPC functions without referencing the TI-RPC library and the
491 removal of the RPC headers from the glibc headers.
492 Implemented by Ulrich Drepper.
494 * New Linux interfaces: clock_adjtime, name_to_handle_at, open_by_handle_at,
495 syncfs, setns, sendmmsg
497 * New locales: os_RU, bem_ZA, en_ZA, ff_SN, sw_KE, sw_TZ, lb_LU, wae_CH,
498 yue_HK, lij_IT, mhr_RU
500 * New encodings: CP770, CP771, CP772, CP773, CP774
502 * New program sotruss to trace calls through PLTs
503 Implemented by Ulrich Drepper.
505 * The malloc hook implementation is marked deprecated and will be removed
506 from the default implementation in the next version. The design never
507 worked ever since the introduction of threads. Even programs which do
508 not create threads themselves can use multiple threads created internally.
509 \f
510 Version 2.13
512 * The following bugs are resolved with this release:
514 3268, 6812, 7066, 10085, 10484, 10563, 10851, 11149, 11155, 11577, 11611,
515 11640, 11655, 11701, 11840, 11856, 11883, 11903, 11904, 11968, 11979,
516 12005, 12037, 12067, 12077, 12078, 12092, 12093, 12107, 12108, 12113,
517 12140, 12159, 12167, 12191, 12194, 12201, 12204, 12205, 12207, 12348,
518 12378, 12394, 12397
520 * New Linux interfaces: prlimit, prlimit64, fanotify_init, fanotify_mark
522 * POWER7 optimizations: memset, memcmp, strncmp
524 * New optimized string functions for x86-64: strnlen (SSE2),
525 strcasecmp (SSE2, SSSE3, SSE4.2), strncasecmp (SSE2, SSSE3, SSE4.2)
526 Implemented by Ulrich Drepper.
527 \f
528 Version 2.12
530 * The following bugs are resolved with this release:
532 3662, 4457, 5553, 10162, 10401, 10414, 10554, 10824, 10864, 10915,
533 10918, 10936, 10939, 10958, 10968, 10969, 10972, 10992, 11000, 11001,
534 11007, 11010, 11027, 11039, 11040, 11041, 11043, 11046, 11056, 11070,
535 11093, 11115, 11125, 11126, 11127, 11134, 11141, 11149, 11183, 11184,
536 11185, 11186, 11187, 11188, 11189, 11190, 11191, 11192, 11193, 11194,
537 11200, 11230, 11235, 11242, 11254, 11258, 11271, 11272, 11276, 11279,
538 11287, 11292, 11319, 11332, 11333, 11387, 11389, 11390, 11394, 11397,
539 11410, 11438, 11449, 11470, 11471, 11520, 11537, 11538, 11571
541 * New interfaces: pthread_getname_np, pthread_setname_np
543 * New Linux interface: recvmmsg
545 * STT_GNU_IFUNC implemented for Sparc by David Miller.
547 * The dynamic linker now recognizes supported ABI versions from the
548 EI_ABIVERSION field in the ELF header.
549 Implemented by Ulrich Drepper.
551 * New NIS mode selector ADJUNCT_AS_SHADOW. The passwd.adjunct.byname table
552 will not be used to fill in password fields in the passwd.byname replies.
553 Instead it is used to synthesize the shadow.byname table, should it be
554 missing. This is a useful mode in some installations involving Solaris.
555 Implemented by Ulrich Drepper.
557 * New locales: kok_IN, sq_MK, cv_RU
558 \f
559 Version 2.11
561 * The following bugs are resolved with this release:
563 3270, 7094, 9924, 9986, 10011, 10085, 10107, 10159, 10162, 10166, 10183,
564 10195, 10196, 10200, 10203, 10207, 10211, 10213, 10217, 10221, 10229,
565 10262, 10286, 10312, 10315, 10319, 10349, 10360, 10391, 10402, 10416,
566 10418, 10422, 10425, 10446, 10448, 10452, 10540, 10553, 10560, 10564,
567 10609, 10643, 10692, 10713, 10717, 10730, 10731, 10742, 10780, 10784,
568 10789, 10817, 10823, 10840, 10847
570 * New interfaces: execvpe, pthread_sigqueue, mkstemps, mkstemps64, mkostemps,
571 mkostemps64
572 Implemented by Ulrich Drepper.
574 * Checking version of longjmp added that fails if an uninitialized stack
575 frame would be created. Implemented by Ulrich Drepper.
577 * STT_GNU_IFUNC is now supported in static executables.
578 Implemented by H.J. Lu.
580 * STT_GNU_IFUNC implemented for PPC by Alan Modra.
582 * New optimized string functions for x86-64: strstr, strcasestr, memcmp,
583 strcspn, strpbrk, strspn, strcpy, stpcpy, strncpy, strcmp (SSE2, SSE4.2),
584 strncmp (SSE2, SSE4.2), strchr (SSE4.2), strrchr (SSE4.2).
585 Contributed by H.J. Lu.
587 strlen, rawmemchr, strcmp (SSSE3), strncmp (SSSE3).
588 Implemented by Ulrich Drepper.
590 * New optimized string functions for x86: strlen, strcspn, strspn, strpbrk,
591 strstr, strcasestr.
592 Contributed by H.J. Lu.
594 * Support for fma instruction in AVX on x86-64.
595 Implemented by H.J. Lu and Ulrich Drepper.
597 * AVX support in x86-64 auditing support in ld.so.
598 Implemented by H.J. Lu.
600 * STB_GNU_UNIQUE support added.
601 Implemented by Ulrich Drepper.
603 * Implement second fallback mode for optimized DNS lookup for even more
604 broken environments. If two requests from the same port are not
605 handled correctly close the socket and open a new one before sending
606 the second request. The 'single-request-reopen' option in /etc/resolv.conf
607 can be used to select this mode right away, instead of rediscovering the
608 necessity is every process again.
609 Implemented by Ulrich Drepper.
611 * New resolver flag RES_USE_DNSSEC to enable use of verified lookup.
612 Implemented by Adam Tkac.
614 * Optimized iconv conversions for S390x.
615 Implemented by Andreas Krebbel.
617 * Using condvars with PI mutexes is now more efficient due to kernel
618 support for requeueing to PI futexes. NPTL support added for x86-64.
619 Implemented by Ulrich Drepper.
621 * New locales: ps_AF, my_MM
622 \f
623 Version 2.10
625 * The following bugs are resolved with this release:
627 697, 5381, 5807, 6411, 6545, 7040, 7058, 7067, 7080, 7083, 7095, 7098,
628 9677, 9694, 9697, 9701, 9704, 9705, 9706, 9720, 9726, 9730, 9733, 9736,
629 9741, 9750, 9753, 9759, 9781, 9791, 9793, 9823, 9833, 9844, 9880, 9881,
630 9891, 9893, 9895, 9913, 9916, 9920, 9948, 9955, 9957, 9963, 9985, 10052,
631 10069, 10086, 10087, 10090, 10092, 10093, 10100, 10118, 10128
633 * New interfaces: preadv, preadv64, pwritev, pwritev64, malloc_info
634 Implemented by Ulrich Drepper.
636 * New Linux interfaces: accept4, fallocate, fallocate64.
637 Implemented by Ulrich Drepper.
639 * Correct declarations of string function when used in C++ code. This
640 could lead to compile errors for invalid C++ code.
642 * XPG7/POSIX 2008 compilation environment. Many GNU-specific functions are
643 now in POSIX.
645 * New POSIX 2008 interface: psiginfo
646 Implemented by Ulrich Drepper.
648 * New ISO C++1x interfaces: quick_exit, at_quick_exit
649 Implemented by Ulrich Drepper.
651 * Support for selecting between multiple function definitions at runtime
652 using STT_GNU_IFUNC symbols. Implemented by Ulrich Drepper.
654 * The libcrypt library can now use the hash function implementations in
655 NSS. Implemented by Ulrich Drepper.
657 * The malloc implementation can be compiled to be less memory efficient
658 but higher performing in multi-threaded programs.
659 Implemented by Ulrich Drepper.
661 * New locales: nan_TW@latin, ks_IN
663 * Faster strlen, strchr, strchrnul, strrchr, memchr, and rawmemchr for x86-64.
664 Implemented by Ulrich Drepper.
666 * Extended printf hook support. It is possible to use user-defined types
667 and extend existing format specifiers.
668 Implemented by Ulrich Drepper.
670 * Handling for group shadow files has been added.
671 Implemented by Ulrich Drepper.
673 * DNS IPv4-IPv6 parallel lookup now deals better with broken DNS
674 servers (the case, e.g., for some people using the built-in DNS
675 server in ADSL modems/routers). There is a once-per-process timeout
676 in case of a broken server. To avoid it, users can run nscd or put
677 'options single-request' in /etc/resolv.conf.
678 Implemented by Ulrich Drepper.
679 \f
680 Version 2.9
682 * The following bugs are resolved with this release:
684 3406, 5209, 5210, 5381, 5794, 5814, 5911, 6428, 6438, 6442, 6447, 6461,
685 6472, 6505, 6544, 6589, 6612, 6634, 6653, 6654, 6657, 6698, 6712, 6713,
686 6719, 6723, 6724, 6740, 6763, 6771, 6790, 6791, 6817, 6824, 6839, 6843,
687 6845, 6856, 6857, 6860, 6867, 6875, 6919, 6920, 6942, 6947, 6955, 6966,
688 6968, 6974, 6980, 6995, 7008, 7009, 7029
690 * Unified lookup for getaddrinfo: IPv4 and IPv6 addresses are now looked
691 up at the same time. Implemented by Ulrich Drepper.
693 * TLS descriptors for LD and GD on x86 and x86-64.
694 Implemented by Alexandre Oliva.
696 * getaddrinfo now handles DCCP and UDPlite.
697 Implemented by Ulrich Drepper.
699 * New fixed-size conversion macros: htobe16, htole16, be16toh, le16toh,
700 htobe32, htole32, be32toh, le32toh, htobe64, htole64, be64toh, le64toh.
701 Implemented by Ulrich Drepper.
703 * New implementation of memmem, strstr, and strcasestr which is O(n).
704 Implemented by Eric Blake.
706 * New Linux interfaces: inotify_init1, dup3, epoll_create1, pipe2
708 * Implement "e" option for popen to open file descriptor with the
709 close-on-exec flag set. Implemented by Ulrich Drepper.
711 * Implement "b" mode for fmemopen. In this mode writes writes don't
712 implicitly add a NUL byte and seeks from the end of the buffer really
713 use the buffer end, not the string length as the basis.
714 Implemented by Ulrich Drepper.
716 * Many functions, exported and internal, now atomically set the close-on-exec
717 flag when run on a sufficiently new kernel. Implemented by Ulrich Drepper.
719 * Sorting rules for some Indian languages (Kannada, Gurumukhi, Telugu,
720 Sinhala)
721 Implemented by Pravin Satpute.
723 * New locales: sd_IN, sd_IN@devanagari, ks_IN@devanagari, ht_HT, en_AG, nl_AW.
724 \f
725 Version 2.8
727 * The following bugs are resolved with this release:
729 2549, 3112, 4314, 4407, 4997, 5012, 5040, 5112, 5204, 5208, 5209, 5220,
730 5222, 5224, 5225, 5237, 5238, 5240, 5245, 5277, 5346, 5375, 5378, 5382,
731 5424, 5427, 5428, 5435, 5436, 5439, 5441, 5442, 5443, 5451, 5452, 5454,
732 5455, 5463, 5464, 5465, 5475, 5477, 5478, 5520, 5541, 5545, 5553, 5600,
733 5602, 5607, 5614, 5627, 5628, 5736, 5737, 5741, 5753, 5760, 5762, 5768,
734 5774, 5777, 5778, 5779, 5786, 5790, 5818, 5854, 5857, 5903, 5939, 5979,
735 5983, 5995, 5998, 6004, 6007, 6020, 6021, 6024, 6040, 6042
737 * New locales: bo_CN, bo_IN, shs_CA.
739 * New encoding: HP-ROMAN9, HP-GREEK8, HP-THAI8, HP-TURKISH8.
741 * Sorting rules for some Indian languages (Devanagari and Gujarati).
742 Implemented by Pravin Satpute.
744 * IPV6 addresses in /etc/resolv.conf can now have a scope ID
746 * nscd caches now all timeouts for DNS entries
747 Implemented by Ulrich Drepper.
749 * nscd is more efficient and wakes up less often.
750 Implemented by Ulrich Drepper.
752 * More checking functions: asprintf, dprintf, obstack_printf, vasprintf,
753 vdprintf, and obstack_vprintf.
754 Implemented by Jakub Jelinek.
756 * Faster memset for x86-64.
757 Implemented by Harsha Jagasia and H.J. Lu.
759 * Faster memcpy on x86.
760 Implemented by Ulrich Drepper.
762 * ARG_MAX is not anymore constant on Linux. Use sysconf(_SC_ARG_MAX).
763 Implemented by Ulrich Drepper.
765 * Faster sqrt and sqrtf implemention for some PPC variants.
766 Implemented by Steven Munroe.
767 \f
768 Version 2.7
770 * The following bugs are resolved with this release:
772 4125, 4126, 4178, 4359, 4407, 4512, 4514, 4525, 4554, 4556, 4557, 4566,
773 4582, 4586, 4588, 4599, 4610, 4647, 4702, 4705, 4726, 4745, 4772, 4773,
774 4775, 4776, 4792, 4813, 4814, 4816, 4833, 4858, 4860, 4896, 4905, 4925,
775 4936, 4937, 4938, 4941, 4946, 4963, 4972, 5010, 5028, 5043, 5058, 5063,
776 5071, 5103, 5104, 5112, 5113, 5184, 5186
778 * More checking functions: fread, fread_unlocked, open*, mq_open.
779 Implemented by Jakub Jelinek and Ulrich Drepper.
781 * Extend fortification to C++. Implemented by Jakub Jelinek.
783 * Implement 'm' modifier for scanf. Add stricter C99/SUS compliance
784 by not recognizing 'a' as a modifier when those specs are requested.
785 Implemented by Jakub Jelinek.
787 * PPC optimizations to math and string functions.
788 Implemented by Steven Munroe.
790 * New interfaces: mkostemp, mkostemp64. Like mkstemp* but allow additional
791 options to be passed. Implemented by Ulrich Drepper.
793 * More CPU set manipulation functions. Implemented by Ulrich Drepper.
795 * New Linux interfaces: signalfd, eventfd, eventfd_read, and eventfd_write.
796 Implemented by Ulrich Drepper.
798 * Handle private futexes in the NPTL implementation.
799 Implemented by Jakub Jelinek and Ulrich Drepper.
801 * Add support for O_CLOEXEC. Implement in Hurd. Use throughout libc.
802 Implemented by Roland McGrath and Ulrich Drepper.
804 * Linux/x86-64 vDSO support. Implemented by Ulrich Drepper.
806 * SHA-256 and SHA-512 based password encryption.
807 Implemented by Ulrich Drepper.
809 * New locales: ber_DZ, ber_MA, en_NG, fil_PH, fur_IT, fy_DE, ha_NG, ig_NG,
810 ik_CA, iu_CA, li_BE, li_NL, nds_DE, nds_NL, pap_AN, sc_IT, tk_TM, ug_CN,
811 yo_NG.
813 + New iconv modules: MAC-CENTRALEUROPE, ISO-8859-9E, KOI8-RU.
814 Implemented by Ulrich Drepper.
815 \f
816 Version 2.6
818 * The following bugs are resolved with this release:
820 3156, 3213, 3285, 3291, 3306, 3313, 3320, 3322, 3325, 3326, 3334, 3348,
821 3352, 3363, 3369, 3426, 3427, 3429, 3451, 3458, 3465, 3480, 3483, 3493,
822 3514, 3515, 3559, 3632, 3664, 3673, 3674, 3745, 3747, 3818, 3840, 3842,
823 3851, 3855, 3884, 3885, 3902, 3905, 3919, 3944, 3954, 3955, 3957, 3991,
824 3995, 3996, 4024, 4040, 4069, 4070, 4074, 4076, 4096, 4101, 4102, 4114,
825 4130, 4131, 4181, 4276, 4306, 4342, 4344, 4349, 4364, 4368, 4381, 4392,
826 4403, 4405, 4406, 4411, 4438, 4439, 4455, 4456, 4465, 4512, 4514, 4586,
827 4702, 4858
829 * New Linux interfaces: epoll_pwait, sched_getcpu.
831 * New generic interfaces: strerror_l.
833 * nscd can now cache the services database. Implemented by Ulrich Drepper.
834 \f
835 Version 2.5
837 * The following bugs are resolved with this release:
839 39, 68, 192, 352, 388, 531, 935, 1006, 1201, 1203, 1386, 1782, 1783, 1784,
840 1785, 1786, 1787, 1951, 1974, 1996, 2072, 2098, 2125, 2134, 2158, 2182,
841 2349, 2376, 2386, 2389, 2415, 2418, 2420, 2423, 2450, 2451, 2466, 2472,
842 2473, 2477, 2498, 2499, 2501, 2502, 2505, 2507, 2508, 2509, 2517, 2526,
843 2569, 2571, 2592, 2611, 2625, 2632, 2644, 2662, 2680, 2683, 2684, 2693,
844 2695, 2703, 2734, 2751, 2764, 2766, 2775, 2792, 2821, 2823, 2832, 2841,
845 2843, 2883, 2892, 2908, 2914, 2926, 2961, 2978, 2980, 2987, 2997, 2998,
846 3013, 3018, 3034, 3040, 3044, 3123, 3124, 3137, 3138, 3143, 3155, 3189,
847 3225, 3251, 3252, 3253, 3273
849 * For Linux, the sorting of addresses returned by getaddrinfo now also
850 handles rules 3, 4, and 7 from RFC 3484. I.e., all rules are handled.
851 Implemented by Ulrich Drepper.
853 * Allow system admin to configure getaddrinfo with the /etc/gai.conf file.
854 Implemented by Ulrich Drepper.
856 * New Linux interfaces: splice, tee, sync_file_range, vmsplice.
858 * New iconv module for MIK. Contributed by Alexander Shopov.
860 * For sites with broken group and/or passwd database, the auto-propagate
861 option of nscd can prevent creating ID lookup entries from the results
862 of a name lookup and vice versa. This usually is no problem but some
863 site might have problems with the default behavior.
864 Implemented by Ulrich Drepper.
866 * Iterating over entire database in NIS can be slow. With the
867 SETENT_BATCH_READ option in /etc/default/nss a system admin can decide
868 to trade time for memory. The entire database will be read at once.
869 Implemented by Ulrich Drepper.
871 * The interfaces introduced in RFC 3542 have been implemented by
872 Ulrich Drepper.
874 * Support for the new ELF hash table format was added by Ulrich Drepper.
876 * Support for priority inheritance mutexes added by Jakub Jelinek and
877 Ulrich Drepper.
879 * Support for priority protected mutexes added by Jakub Jelinek.
881 * New locales: nr_ZA, pa_PK, ca_AD, ca_FR, ca_IT, el_CY, tr_CY, as_IN,
882 or_IN, csb_PL, fy_NL, sr_ME.
883 \f
884 Version 2.4
886 * More overflow detection functions.
888 * New iconv converters for IBM1025, IBM1122, IBM1137, IBM1153,
889 IBM1154, IBM1155, IBM1156, IBM1157, and IBM1158 contributed by Jiro Sekiba.
891 More converters for IBM803, IBM901, IBM902, IBM921, IBM1008, IBM1097,
892 IBM1112, IBM1123, IBM1130, IBM1140, IBM1141, IBM1142, IBM1143, IBM1144,
893 IBM1145, IBM1146, IBM1147, IBM1148, IBM1149, IBM1166, IBM1167, IBM4517,
894 IBM4899, IBM4909, IBM4971, IBM5347, IBM9030, IBM9066, IBM9448, IBM12712,
895 IBM16804, IBM1364, IBM1371, IBM1388, IBM1390, and IBM1399 contributed
896 by Masahide Washizawa.
898 * It is now possible to install audit libraries for the dynamic linker using
899 LD_AUDIT. Implemented by Ulrich Drepper.
901 * The LinuxThreads add-on, providing pthreads on Linux 2.4 kernels, is no
902 longer supported. The new NPTL implementation requires Linux 2.6 kernels.
903 For a libc and libpthread that works well on Linux 2.4 kernels, we
904 recommend using the stable 2.3 branch.
906 * The new function open_wmemstream acts like open_memstream,
907 but uses a wchar_t wide character buffer.
909 * The new function ppoll is an improved version of poll, similar to pselect.
911 * New interfaces: fdopendir, openat, fstatat, fchmodat, fchownat,
912 futimesat, faccessat, mkdirat, mkfifoat, mknodat,
913 renameat, unlinkat, linkat, symlinkat, readlinkat.
915 * New Linux kernel system calls: unshare,
916 inotify_init, inotify_add_watch, inotify_rm_watch.
918 * The euidaccess function is now also known by the alias eaccess,
919 for compatibility with some other systems.
921 * Timezone data updated to 2006b version.
922 \f
923 Version 2.3.6
925 * The following bugs are resolved with this release:
927 38, 253, 549, 622, 653, 721, 758, 851, 877, 915, 934, 955, 961,
928 1016, 1037, 1076, 1079, 1080, 1081, 1082, 1083, 1084, 1085, 1086,
929 1087, 1088, 1090, 1091, 1092, 1093, 1094, 1095, 1096, 1097, 1098,
930 1099, 1100, 1101, 1102, 1103, 1104, 1105, 1106, 1107, 1108, 1109,
931 1110, 1111, 1112, 1113, 1125, 1137, 1138, 1249, 1250, 1251, 1252,
932 1253, 1254, 1350, 1358, 1394, 1438, 1498, 1534
934 Visit <http://sources.redhat.com/bugzilla/> for the details of each bug.
936 * As of this release, GCC 4 can be used to compile the C Library.
938 * Timezone data updated to 2005m version.
939 \f
940 Version 2.3.5
942 * The following bugs are resolved with this release:
944 284, 592, 602, 626, 633, 640, 650, 661, 671, 681, 693, 700, 710, 719,
945 722, 723, 725, 726, 727, 728, 729, 730, 731, 732, 733, 734, 735, 736,
946 737, 738, 739, 740, 741, 742, 743, 744, 745, 765, 767, 768, 769, 776,
947 777, 787, 821, 822, 823, 825
949 Visit <http://sources.redhat.com/bugzilla/> for the details of each bug.
950 \f
951 Version 2.3.4
953 * Support for RFC 3678. Real implementations exist only for Linux so far.
954 Implemented by Ulrich Drepper.
956 * nscd can now cache entries persistently. Expiring entries are reloaded.
957 For speedups the cache can be shared in memory with client processes.
958 Implemented by Ulrich Drepper.
960 * nscd can now perform SELinux checks.
961 Implemented by Matthew Rickard <mjricka@epoch.ncsc.mil>.
963 * getaddrinfo queries are now cached. Canonical name lookup is performed
964 efficiently.
965 Implemented by Ulrich Drepper.
967 * The nothrow function attribute is used when headers are used by gcc when
968 compiling C code. This can avoid significant amounts of exception
969 handling data.
971 * The malloc functions perform more error checking and are stricter when
972 it comes to reacting on errors. The default action is to terminate
973 the process after showing an error message. Implemented by Ulrich Drepper.
975 * Reverse lookups of IPv6 addresses does not use bit string or .ip6.int
976 lookups anymore unless explicitly requested. Implemented by Ulrich Drepper.
978 * Namespaces in ld.so are implemented. DSOs can be loaded in separate
979 namespaces using the new function dlmopen(). This feature is of course,
980 like most other dynamic loading functionality, not available in statically
981 linked applications. Implemented by Ulrich Drepper.
983 * Low-overhead boundary checking variants of string and some stdio functions
984 were added. These are to be used in conjunction with a gcc patch by
985 Jakub Jelinek which adds calls to these functions if possible.
986 Implemented by Jakub Jelinek and Ulrich Drepper.
988 * Old code for several operating systems and machine architectures that
989 have not been in working condition in a long time have been removed from
990 the main source tree maintained by the GNU C Library's maintainers.
991 These files are now reside in the separate `ports' source module
992 that is usable as an add-on when building the library.
993 \f
994 Version 2.3.3
996 * New functions `dladdr1' and `dlinfo' in <dlfcn.h> provide more ways to
997 interrogate the dynamic linker, compatible with the Solaris interface.
999 * ELF thread-local storage support (TLS) now works on PowerPC and PowerPC64;
1000 implemented by Paul Mackerras, Steven Munroe, and Roland McGrath.
1002 * getifaddrs now uses the netlink interface on Linux to get its information.
1003 Implemented by Thorsten Kukuk.
1005 * getaddrinfo now implements AI_V4MAPPED, AI_ALL, and AI_ADDRCONF.
1006 Implemented by Ulrich Drepper.
1008 * support for non-executable stacks on x86 has been added. Changes mostly
1009 by Roland McGrath.
1011 * regex is now much faster for multibyte locales. Changes by Jakub Jelinek
1012 and Ulrich Drepper.
1014 * getaddrinfo now performs destination address selection according to
1015 RFC 3484.
1016 \f
1017 Version 2.3.2
1019 * Thread-safe interfaces for many functions that access locale data
1020 were added in version 2.3, but these features were omitted from NEWS.
1021 Many functions have variants with an `_l' suffix that take a `locale_t'
1022 object as a parameter rather than consulting the current locale.
1023 The new functions `newlocale', `duplocale', and `freelocale' in <locale.h>
1024 create and maintain `locale_t' objects. Additionally, the new function
1025 `uselocale' sets "the current locale" (as used by functions not so
1026 parameterized) set for an individual thread. These features were added
1027 in version 2.3, implemented by Ulrich Drepper and Roland McGrath.
1029 * The functions getresuid, getresgid, setresuid, and setresgid, which
1030 have long been available on Linux, are now declared in <unistd.h>
1031 and are now also available on the Hurd.
1033 * ELF thread-local storage support (TLS) now works on x86-64.
1035 * The new dynamic string token $LIB is expanded in shared library names.
1036 This normally expands to lib, but on some 64-bit platforms to lib64 instead.
1038 * Aldy Hernandez contributed complete software floating point support for
1039 PowerPC machines with no FPU.
1041 * fexecve is implemented on Linux.
1043 * The `btowc' function should work at least twice as fast due to
1044 specialized callbacks in the iconv modules. Implemented by Bruno Haible.
1046 * With approriate thread add-ons cancelable functions are now implemented
1047 in libc.so as well. No need to call the function in libpthread. This
1048 change allowed to finally disable the incorrect and expensive handling
1049 of weak definition in ld.so.
1051 * Yet more PLT entries in libc.so have been removed. We finally arrived
1052 at the bare minimum. Startup times improved appropriately.
1054 * Support for the new Linux/x86 system call interface was added. The
1055 AT_SYSINFO auxiliary vector entry is recognized and handled.
1056 \f
1057 Version 2.3
1059 * Masahide Washizawa contributed iconv modules for IBM1163 and IBM1164
1060 charsets.
1062 * iconv (the program and the interface) now accepts empty names (excluding
1063 options like //TRANSLIT) to mean "use charset of current locale".
1065 * localedef can now transliterate characters in strings which are not in
1066 the provided charmap. The information from the input locale is used.
1068 * Prelinking support was added for ELF targets. This requires additional
1069 tools and recent versions of the GNU binutils. Contributed by Jakub Jelinek.
1071 * Read-only stdio streams now use mmap to speed up operation by eliminating
1072 copying and buffer underflows. To use add 'm' to the mode string of
1073 the fopen/fdopen/freopen call. Implemented by Ulrich Drepper.
1075 * The malloc functions were completely rewritten by Wolfram Gloger based
1076 on Doug Lea's malloc-2.7.0.c.
1078 * Isamu Hasegawa contributed a completely new and POSIX-conformant
1079 implementation of regex.
1081 * Bruno Haible upgraded the iconv and locale implementation to support
1082 Unicode 3.2.
1084 * Contents of the LC_* and LANG environment variables in the CEN style are
1085 not recognized anymore. It never was used. Change by Ulrich Drepper.
1087 * The runtime (ld.so, libc, libpthread for Linux) now can handle the ELF
1088 thread-local storage (TLS) ABI on some platforms.
1089 Changes by Ulrich Drepper. SH support by Kaz Kojima.
1091 * Bruno Haible contributed iconv converters for ISO-2022-JP-3, SHIFT JIS-X0213,
1092 EUC-JISX0213, and TSCII.
1094 * New header <ifaddrs.h> with functions `getifaddrs' and `freeifaddrs':
1095 BSD-compatible interface for getting all network interface addresses.
1096 Implementation for IPv4 by Roland McGrath.
1098 * Loading of locale data is faster due to the introduction of a locale
1099 archive. Implemented by Roland McGrath and Ulrich Drepper.
1101 * Startup times are significantly reduced by not using exported functions
1102 inside the library itself. Changes by Jakub Jelinek, Roland McGrath,
1103 and Ulrich Drepper.
1105 * Steven Munroe contributed a port to PowerPC64/Linux.
1106 \f
1107 Version 2.2.6
1109 * The Hurd now uses the GNU libio implementation of stdio rather than the
1110 old GNU stdio implementation, and uses a new ABI (libc.so.0.3).
1112 * The Hurd on x86 now has the `ioperm' function and <sys/io.h> header file
1113 with the same behavior as the Linux system call of the same name.
1114 \f
1115 Version 2.2.5
1117 * Stephen Moshier implemented log2, log10, powl and cbrtl for the
1118 128-bit long double format.
1120 * Masahide Washizawa contributed iconv modules for IBM1132, IBM1133, IBM1160,
1121 IBM1161, and IBM1162 charsets.
1123 * Andreas Jaeger contributed a port to x86-64/Linux.
1125 * Peter Bruin contributed a port to PowerPC/Hurd.
1127 * libc functions using I/O streams now can handle wide-oriented streams
1128 as well.
1130 * optimizations in the dynamic linker. Binaries created by recent binutils
1131 versions start up quicker due to reduced time spent on relocations.
1133 * Support for use of gcc3 added by Jakub Jelinek and HJ Lu.
1134 \f
1135 Version 2.2.4
1137 * Stephen Moshier implemented cosh, expm1, log1p, acos, sinh, tanh,
1138 asinh, atanh, j0 for the 128-bit long double format.
1140 * Bruno Haible updated all the code handling Unicode in some form to
1141 support Unicode 3.1.
1143 * Speed of regex for single-byte locales is back to previous levels.
1144 Patch by Isamu Hasegawa.
1146 * Alpha, SPARC, and IA-64 now also using floating stacks.
1148 * Startup time of internationalized applications greatly improved through
1149 iconv cache. Use iconvconfig to generate the cache file.
1150 Contributed by Ulrich Drepper.
1152 * The IA-64 specific part of ld.so was rewritten to eliminate some pretty
1153 severe performance problems. Patch by David Mosberger.
1155 * The Hurd port got a lot more functionality like AIO, various stdio
1156 extensions, etc. Mainly done by Roland McGrath.
1158 * mtrace can now lookup symbols in shared libraries.
1159 \f
1160 Version 2.2.3
1162 * Intel's IA-64 math library is largely integrated. It provides fast and
1163 accurate implementatations for most basic and standard math functions
1164 in float, double, and long double format.
1166 * Stephen Moshier implemented j0, j1, jn, y0, y1, yn, lgamma, erf, erfc,
1167 and asin for the 96-bit long double format and asin, log, tan for the
1168 128-bit long double format.
1170 * The beginning of a last-bit accurate math library by IBM Haifa were added.
1171 The basic double functions exist today. Contributed by Abraham Ziv
1172 <ziv@il.ibm.com>, Moshe Olshansky <olshansk@il.ibm.com>, Ealan Henis
1173 <ealan@il.ibm.com>, and Anna Reitman <reitman@il.ibm.com>.
1175 * An asynchronous name lookup library was added. The interface is designed
1176 after POSIX AIO. The proposal was circulated beforehand to get comments.
1177 No negative ones came in. Implemented by Ulrich Drepper.
1179 * Port to S390/64bit contributed by Martin Schwidefsky
1180 <schwidefsky@de.ibm.com>.
1182 * David Mosberger <davidm@hpl.hp.com> implemented the setcontext family
1183 of functions for Linux/IA-64.
1185 * The RPC code is now thread safe. Threads can now use the same service
1186 of different services at the same time. Patch by Eric Norum
1187 <eric.norum@usask.ca> with some help by Ulrich Drepper.
1189 * Martin Schwidefsky <schwidefsky@de.ibm.com> implemented the setcontext
1190 family of functions for Linux/S390.
1192 * Ulrich Drepper <drepper@redhat.com> implemented the setcontext family
1193 of functions for Linux/x86.
1195 * Port to Linux/CRIS contributed by Axis Communications.
1196 \f
1197 Version 2.2.2
1199 * Lots of headers were cleaned up. Using the tool in the conform/ subdir
1200 we can now check for namespace violations and missing declarations. The
1201 result is that almost all headers are now Unix-compliant (as defined in
1202 the upcoming XPG6). The negative side is that some programs might need
1203 corrections, too, if they depend on the incorrect form of the headers in
1204 previous versions which defined too many symbols and included too many
1205 other headers.
1207 * regex now handles multibyte character sets correctly.
1208 Contributed by Isamu Hasegawa <isamu@yamato.ibm.com>.
1210 * iconv (the program) does now conform to the upcoming XPG6 and handles
1211 charmaps. Instead of the charset names the path of charmaps can be
1212 provided and the conversion happens based on this data.
1213 Contributed by Ulrich Drepper.
1215 * The locale program now provides detailed information about the installed
1216 locales. While
1218 locale -a
1220 only lists the names of the supported locales
1222 locale -a --verbose
1224 provides details such as country, language, and codeset name.
1225 Contributed by Ulrich Drepper.
1226 \f
1227 Version 2.2.1
1229 * The gencat program now parses the input file according to the charset
1230 selected by the LC_CTYPE category. This is important for stateful
1231 character sets. To make generating catalogs easier there is a way
1232 to overwrite the charset selected by the locale: before the first
1233 message or $ quote line the catalog can contain a line like
1235 $ codeset=ISO-8859-2
1237 to select the charset (ISO-8859-2 in this case).
1239 Implemented by Shinya Hanataka and Ulrich Drepper.
1241 * New codeset conversion modules: IBM-922 (Estonia PC codeset),
1242 IBM-1124 (Ukraine PC codeset), IBM-1129 (Vietnamese PC codeset).
1243 Contributed by Masahide Washizawa <washi@jp.ibm.com>.
1245 * Optimized string functions for Alpha ev6 and ev67 by Richard Henderson
1246 <rth@redhat.com> and Rick Gorton <rick.gorton@alpha-processor.com>.
1248 * The LANGUAGE environment variable is now ignored unless the locale is
1249 changed from the default "C" locale.
1251 * The usual bug fixes.
1252 \f
1253 Version 2.2
1255 * Greg McGary added runtime support for bounds checking using gcc's
1256 new -fbounded-pointers option. ix86 target is complete. PowerPC
1257 is in progress.
1259 * Thorsten Kukuk added secure mode support to nscd.
1261 * The Berkeley db libraries have been removed.
1263 Related, the nss_db module is now in a separate package since it
1264 obviously requires a database library being available.
1266 * Wide character I/O streams implemented by Ulrich Drepper.
1268 * Functions from the extended socket API added by Ulrich Drepper.
1270 * Functions feenableexcept and fedisableexcept to control the
1271 behaviour of individual exceptions have been added by Andreas Jaeger.
1273 * ldconfig program added by Andreas Jaeger and Jakub Jelinek.
1275 * The resolver code has been updated from bind 8.2.3-T5B which supports
1276 threads. The integration was done by Andreas Jaeger, Adam D. Bradley,
1277 and Mark Kettenis.
1279 This change could in some situations effect backward compatibility. Since
1280 now `_res' is a thread-local instead of a global variable, modifying it
1281 in one thread does not have any effect in other threads.
1283 The resolver library was also extended to allow IPv6 as the transport
1284 protocol for the requests. This work was done by Stig Venaas.
1286 * Compatibility code for K&R C compilers has been removed from the
1287 header files. A ISO C compiler is needed to use the library
1288 (conforming to either C89 or C99 standard).
1290 * Complete rewrite of the localedef program to support multibyte character
1291 sets. Implement handling of ISO 14651 and ISO 14652. Rewrite strcoll,
1292 strxfrm, wcscoll, and wcsxfrm functions. Make isw*() functions work.
1293 Implemented by Ulrich Drepper.
1295 Bruno Haible significantly improved the generation and use of the data
1296 structures for the wide character tables.
1298 * Plural handling in gettext implemented by Ulrich Drepper.
1300 * The utmp daemon has been removed.
1302 * The port to MIPS-Linux has been finished by Andreas Jaeger.
1304 * A port to Hitachi SH3 and SH4 has been contributed by Kazumoto Kojima
1305 and Yutaka Niibe.
1307 * POSIX clocks and timers implemented by Kaz Kylheku and Ulrich Drepper.
1309 * POSIX barriers implemented by Kaz Kylheku.
1311 * POSIX spawn function family implemented by Ulrich Drepper.
1313 * POSIX spinlocks are now available.
1315 * Timed wait functions for mutex, rwlock, and semaphores are implemented.
1317 * the configure option --enable-kernel=X.Y.Z allows to strip out
1318 compatibility for kernel versions before X.Y.Z. This is currently only
1319 implemented for Linux.
1321 * the sockaddr_in6 structure changed. The IPv6 working group added a new
1322 field sin6_scope_id. This means that all programs using IPv6 should be
1323 recompiled. Don't expect binary compatibility with previous glibc
1324 versions.
1326 * various conversion modules for IBM character sets contributed by
1327 Masahide Washizawa.
1329 * IA-64 port by Jes Sorensen and HJ Lu.
1330 \f
1331 Version 2.1.3
1333 * bug fixes
1335 \f
1336 Version 2.1.2
1338 * bug fixes
1340 \f
1341 Version 2.1.1
1343 * New ISO C 9x function _Exit, imaxabs, and imaxdiv are added.
1345 * New xdr functions are added; some rpc functions are now 64bit clean.
1347 * Fixed a number of bugs and memory leaks (especially in NIS+ code).
1349 * Fixed known incompatibilities with glibc 2.0.
1351 * New functions lock64, strchrnul, rawmemchr, getutmp and getutmpx.
1353 * Optimized a number of functions (especially the ELF dynamic loader).
1355 * Update timezone data files.
1357 * lots of charmaps corrections
1359 * some new locale definitions and charmaps
1361 \f
1362 Version 2.1
1364 * Richard Henderson corrected size of struct timeval on Linux/Alpha to
1365 conform to POSIX member type requirements. Symbol versions have been
1366 adjusted as needed within the library, and for direct use by applications,
1367 but there is potential for problems if third-party libraries use
1368 struct timeval as part of their interface. This does not present
1369 a problem for X and other "essential" system libraries.
1371 * An additional locale model to support C++ Standard Library locale
1372 model and probably more was implemented by Ulrich Drepper.
1374 * Eric Youngdale and Ulrich Drepper implemented versioning of objects on
1375 symbol level.
1377 * Miles Bader provided the `argp' function family to support hierachical
1378 command line argument parsing, layered on top of getopt.
1380 * strtod accepts new hexadecimal floating-point format from ISO C 9X.
1382 * printf has two new specifiers %a and %A to print hexadecimal flaoting-point
1383 numbers.
1385 * scanf recognizes the %a and %A format for scanning floating point numbers.
1387 * the new headers <stdint.h> and <inttypes.h> from ISO C 9X provides
1388 information and interfaces for the available integer types.
1390 * about 130 new math functions were added to implement the ISO C9x math
1391 library.
1393 * the new header <complex.h> contains definitions of the complex math
1394 functions from ISO C 9X.
1396 * the new header <tgmath.h> defines generic macros to use complex or
1397 real valued functions.
1399 * Thorsten Kukuk provided an implementation for NIS+, securelevel 0, 1 and 2.
1401 * Andreas Jaeger provided a test suite for the math library.
1403 * Mark Kettenis implemented the utmpx interface and an utmp daemon.
1405 * Ulrich Drepper added character set conversion functions (iconv).
1407 * Optimized string functions have been added.
1409 * The localedata addon is now part of glibc.
1411 * An implementation of profiling shared libraries was added by Ulrich Drepper.
1413 * Thorsten Kukuk and Ulrich Drepper provided an implementation for a caching
1414 daemon for NSS (nscd).
1416 Missing a better place here are some numbers on improvements. Under
1417 Linux 2.1.125 un-tar-ing the kernel sources takes
1419 user system wall
1421 using local files 12.19s 6.88s 22.91s
1423 using NIS 13.92s 8.91s 26.34s
1425 using NIS & nscd 10.37s 7.34s 25.30s
1427 using NIS+ 27.57s 30.37s 640.46s
1429 using NIS+ & nscd 10.25s 7.83s 26.51s
1431 using NIS & old nscd [1] 13.83s 8.32s 29.60s
1433 Keep in mind that non-namelookup related operations dominate above times.
1434 It was just a common complain that using NIS+ unpacking the kernel is
1435 horribly slow.
1437 [1] The old nscd implementation is not available anymore since it was
1438 distributed with glibc up to version 2.0.98 and thus is now replaced.
1440 * Tim Waugh provided an implementation of the POSIX.2 wordexp function family.
1442 * Mark Kettenis provided a Hesiod NSS module.
1444 * The ELF dynamic loader knows how to process dynamic string tokens ($ORIGIN
1445 and $PLATFORM) in RPATHs and similar strings (Ulrich Drepper).
1447 * rcmd can now handle netgroups (Dick Streefland).
1449 * A port to the ARM was contributed by Phil Blundell, Pat Beirne and Scott
1450 Bambrough.
1452 * Support for the IPv6 protocol has been added to the socket API, as per the
1453 latest draft standards.
1455 * Support for Linux 2.2 has been added.
1457 * Interface changes relative to the latest 2.0.x release:
1458 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1459 addseverity NEW: Unix98
1460 alphasort64 NEW: LFS
1461 argp_err_exit_status NEW: argp, GNU ext
1462 argp_error NEW: argp, GNU ext
1463 argp_failure NEW: argp, GNU ext
1464 argp_help NEW: argp, GNU ext
1465 argp_parse NEW: argp, GNU ext
1466 argp_program_bug_address NEW: argp, GNU ext
1467 argp_program_version NEW: argp, GNU ext
1468 argp_program_version_hook NEW: argp, GNU ext
1469 argp_state_help NEW: argp, GNU ext
1470 argp_usage NEW: argp, GNU ext
1471 authdes_create NEW: Secure RPC
1472 authdes_getucred NEW: Secure RPC
1473 authdes_pk_create NEW: Secure RPC
1474 backtrace NEW: GNU ext.
1475 backtrace_symbols NEW: GNU ext.
1476 backtrace_symbols_fd NEW: GNU ext.
1477 cacos NEW: ISO C 9x
1478 cacosf NEW: ISO C 9x
1479 cacosh NEW: ISO C 9x
1480 cacoshf NEW: ISO C 9x
1481 cacoshl NEW: ISO C 9x
1482 cacosl NEW: ISO C 9x
1483 capget NEW: kernel
1484 capset NEW: kernel
1485 carg NEW: ISO C 9x
1486 cargf NEW: ISO C 9x
1487 cargl NEW: ISO C 9x
1488 casin NEW: ISO C 9x
1489 casinf NEW: ISO C 9x
1490 casinh NEW: ISO C 9x
1491 casinhf NEW: ISO C 9x
1492 casinhl NEW: ISO C 9x
1493 casinl NEW: ISO C 9x
1494 catan NEW: ISO C 9x
1495 catanf NEW: ISO C 9x
1496 catanh NEW: ISO C 9x
1497 catanhf NEW: ISO C 9x
1498 catanhl NEW: ISO C 9x
1499 catanl NEW: ISO C 9x
1500 cbc_crypt NEW: Secure RPC
1501 ccos NEW: ISO C 9x
1502 ccosf NEW: ISO C 9x
1503 ccosh NEW: ISO C 9x
1504 ccoshf NEW: ISO C 9x
1505 ccoshl NEW: ISO C 9x
1506 ccosl NEW: ISO C 9x
1507 cexp NEW: ISO C 9x
1508 cexpf NEW: ISO C 9x
1509 cexpl NEW: ISO C 9x
1510 cimag NEW: ISO C 9x
1511 cimagf NEW: ISO C 9x
1512 cimagl NEW: ISO C 9x
1513 clearerr_locked REMOVED
1514 clntunix_create NEW: sunrpc ext
1515 clog NEW: ISO C 9x
1516 clog10 NEW: ISO C 9x
1517 clog10f NEW: ISO C 9x
1518 clog10l NEW: ISO C 9x
1519 clogf NEW: ISO C 9x
1520 clogl NEW: ISO C 9x
1521 conj NEW: ISO C 9x
1522 conjf NEW: ISO C 9x
1523 conjl NEW: ISO C 9x
1524 cpow NEW: ISO C 9x
1525 cpowf NEW: ISO C 9x
1526 cpowl NEW: ISO C 9x
1527 cproj NEW: ISO C 9x
1528 cprojf NEW: ISO C 9x
1529 cprojl NEW: ISO C 9x
1530 creal NEW: ISO C 9x
1531 crealf NEW: ISO C 9x
1532 creall NEW: ISO C 9x
1533 creat64 NEW: LFS
1534 csin NEW: ISO C 9x
1535 csinf NEW: ISO C 9x
1536 csinh NEW: ISO C 9x
1537 csinhf NEW: ISO C 9x
1538 csinhl NEW: ISO C 9x
1539 csinl NEW: ISO C 9x
1540 csqrt NEW: ISO C 9x
1541 csqrtf NEW: ISO C 9x
1542 csqrtl NEW: ISO C 9x
1543 ctan NEW: ISO C 9x
1544 ctanf NEW: ISO C 9x
1545 ctanh NEW: ISO C 9x
1546 ctanhf NEW: ISO C 9x
1547 ctanhl NEW: ISO C 9x
1548 ctanl NEW: ISO C 9x
1549 des_setparity NEW: Secure RPC
1550 ecb_crypt NEW: Secure RPC
1551 endutxent NEW: Unix98
1552 exp10 NEW: ISO C 9x
1553 exp10f NEW: ISO C 9x
1554 exp10l NEW: ISO C 9x
1555 exp2 NEW: ISO C 9x
1556 exp2f NEW: ISO C 9x
1557 exp2l NEW: ISO C 9x
1558 fattach NEW: STREAMS
1559 fdetach NEW: STREAMS
1560 fdim NEW: ISO C 9x
1561 fdimf NEW: ISO C 9x
1562 fdiml NEW: ISO C 9x
1563 feclearexcept NEW: ISO C 9x
1564 fegetenv NEW: ISO C 9x
1565 fegetexceptflag NEW: ISO C 9x
1566 fegetround NEW: ISO C 9x
1567 feholdexcept NEW: ISO C 9x
1568 feof_locked REMOVED
1569 feraiseexcept NEW: ISO C 9x
1570 ferror_locked REMOVED
1571 fesetenv NEW: ISO C 9x
1572 fesetexceptflag NEW: ISO C 9x
1573 fesetround NEW: ISO C 9x
1574 fetestexcept NEW: ISO C 9x
1575 feupdateenv NEW: ISO C 9x
1576 fflush_locked REMOVED
1577 ffsl NEW: GNU ext.
1578 ffsll NEW: GNU ext.
1579 fgetpos64 NEW: LFS
1580 fgets_unlocked NEW: GNU ext.
1581 fileno_locked REMOVED
1582 fma NEW: ISO C 9x
1583 fmaf NEW: ISO C 9x
1584 fmal NEW: ISO C 9x
1585 fmax NEW: ISO C 9x
1586 fmaxf NEW: ISO C 9x
1587 fmaxl NEW: ISO C 9x
1588 fmin NEW: ISO C 9x
1589 fminf NEW: ISO C 9x
1590 fminl NEW: ISO C 9x
1591 fmtmsg NEW: Unix98
1592 fopen64 NEW: LFS
1593 fputc_locked REMOVED
1594 fputs_unlocked NEW: GNU ext.
1595 fread_unlocked NEW: GNU ext.
1596 freopen64 NEW: LFS
1597 fseeko NEW: Unix98
1598 fsetpos64 NEW: LFS
1599 fstatfs64 NEW: LFS
1600 fstatvfs NEW: Unix98
1601 fstatvfs64 NEW: LFS
1602 ftello NEW: Unix98
1603 ftello64 NEW: LFS
1604 ftruncate64 NEW: LFS
1605 ftw64 NEW: LFS
1606 fwrite_unlocked NEW: GNU ext.
1607 gai_strerror NEW: IPv6
1608 gamma_r REMOVED
1609 gammaf_r REMOVED
1610 gammal_r REMOVED
1611 getchar_locked REMOVED
1612 getdate NEW: Unix98
1613 getdate_err NEW: Unix98
1614 getdate_r NEW: GNU ext.
1615 getmsg NEW: STREAMS
1616 getnameinfo NEW: IPv6
1617 getnetname NEW: Secure RPC
1618 getpmsg NEW: STREAMS
1619 getpt NEW: Unix98 PTY
1620 getrlimit64 NEW: LFS
1621 getutxent NEW: Unix98
1622 getutxid NEW: Unix98
1623 getutxline NEW: Unix98
1624 glob64 NEW: GNU ext.
1625 globfree64 NEW: GNU ext.
1626 gnu_get_libc_release NEW: GNU ext.
1627 gnu_get_libc_version NEW: GNU ext.
1628 grantpt NEW: Unix98 PTY
1629 host2netname NEW: Secure RPC
1630 iconv NEW: iconv
1631 iconv_close NEW: iconv
1632 iconv_open NEW: iconv
1633 if_freenameindex NEW: IPv6
1634 if_indextoname NEW: IPv6
1635 if_nameindex NEW: IPv6
1636 if_nametoindex NEW: IPv6
1637 in6addr_any NEW: IPv6
1638 in6addr_loopback NEW: IPv6
1639 inet6_isipv4mapped NEW: IPv6
1640 isastream NEW: STREAMS
1641 iswblank NEW: GNU ext.
1642 key_decryptsession NEW: Secure RPC
1643 key_decryptsession_pk NEW: Secure RPC
1644 key_encryptsession NEW: Secure RPC
1645 key_encryptsession_pk NEW: Secure RPC
1646 key_gendes NEW: Secure RPC
1647 key_get_conv NEW: Secure RPC
1648 key_secretkey_is_set NEW: Secure RPC
1649 key_setnet NEW: Secure RPC
1650 key_setsecret NEW: Secure RPC
1651 llrint NEW: ISO C 9x
1652 llrintf NEW: ISO C 9x
1653 llrintl NEW: ISO C 9x
1654 llround NEW: ISO C 9x
1655 llroundf NEW: ISO C 9x
1656 llroundl NEW: ISO C 9x
1657 log2 NEW: ISO C 9x
1658 log2f NEW: ISO C 9x
1659 log2l NEW: ISO C 9x
1660 lrint NEW: ISO C 9x
1661 lrintf NEW: ISO C 9x
1662 lrintl NEW: ISO C 9x
1663 lround NEW: ISO C 9x
1664 lroundf NEW: ISO C 9x
1665 lroundl NEW: ISO C 9x
1666 lseek64 NEW: LFS
1667 makecontext NEW: Unix98
1668 mempcpy NEW: GNU ext.
1669 mmap64 NEW: LFS
1670 moncontrol REMOVED
1671 modify_ldt NEW: kernel
1672 nan NEW: ISO C 9x
1673 nanf NEW: ISO C 9x
1674 nanl NEW: ISO C 9x
1675 nearbyint NEW: ISO C 9x
1676 nearbyintf NEW: ISO C 9x
1677 nearbyintl NEW: ISO C 9x
1678 netname2host NEW: Secure RPC
1679 netname2user NEW: Secure RPC
1680 nexttoward NEW: ISO C 9x
1681 nexttowardf NEW: ISO C 9x
1682 nexttowardl NEW: ISO C 9x
1683 nftw NEW: Unix98
1684 nftw64 NEW: LFS
1685 open64 NEW: LFS
1686 passwd2des NEW: Secure RPC
1687 pow10 NEW: GNU ext.
1688 pow10f NEW: GNU ext.
1689 pow10l NEW: GNU ext.
1690 pread NEW: Unix98
1691 pread64 NEW: LFS
1692 printf_size NEW: GNU ext.
1693 printf_size_info NEW: GNU ext.
1694 profil_counter REMOVED
1695 pthread_mutexattr_getkind_np REPLACED
1696 pthread_mutexattr_setkind_np REPLACED
1697 ptsname NEW: Unix98 PTY
1698 ptsname_r NEW: Unix98 PTY
1699 putc_locked REMOVED
1700 putchar_locked REMOVED
1701 putgrent NEW: GNU ext.
1702 putmsg NEW: STREAMS
1703 putpmsg NEW: STREAMS
1704 pututxline NEW: Unix98
1705 pwrite NEW: Unix98
1706 pwrite64 NEW: LFS
1707 readdir64 NEW: LFS
1708 readdir64_r NEW: LFS
1709 remquo NEW: ISO C 9x
1710 remquof NEW: ISO C 9x
1711 remquol NEW: ISO C 9x
1712 round NEW: ISO C 9x
1713 roundf NEW: ISO C 9x
1714 roundl NEW: ISO C 9x
1715 rtime NEW: GNU ext.
1716 scalbln NEW: ISO C 9x
1717 scalblnf NEW: ISO C 9x
1718 scalblnl NEW: ISO C 9x
1719 scandir64 NEW: LFS
1720 sendfile NEW: kernel
1721 setcontext NEW: Unix98
1722 setrlimit64 NEW: LFS
1723 setutxent NEW: Unix98
1724 sighold NEW: Unix98
1725 sigignore NEW: Unix98
1726 sigqueue NEW: POSIX.1b
1727 sigrelse NEW: Unix98
1728 sigset NEW: POSIX.1b
1729 sigtimedwait NEW: POSIX.1b
1730 sigwaitinfo NEW: POSIX.1b
1731 sincos NEW: GNU ext.
1732 sincosf NEW: GNU ext.
1733 sincosl NEW: GNU ext.
1734 statfs64 NEW: LFS
1735 statvfs NEW: Unix98
1736 statvfs64 NEW: LFS
1737 strcasestr NEW: GNU ext.
1738 strtoimax NEW: ISO C 9x
1739 strtoumax NEW: ISO C 9x
1740 strverscmp NEW: GNU ext.
1741 svcauthdes_stats NEW: Secure RPC
1742 svcunix_create NEW: sunrpc etx
1743 svcunixfd_create NEW: sunrpc ext
1744 swapcontext NEW: Unix98
1745 tcgetsid NEW: Unix98 PTY
1746 tdestroy NEW: GNU ext.
1747 tgamma NEW: ISO C 9x
1748 tgammaf NEW: ISO C 9x
1749 tgammal NEW: ISO C 9x
1750 tmpfile64 NEW: LFS
1751 trunc NEW: ISO C 9x
1752 truncate64 NEW: LFS
1753 truncf NEW: ISO C 9x
1754 truncl NEW: ISO C 9x
1755 umount2 NEW: kernel
1756 unlockpt NEW: Unix98 PTY
1757 updwtmpx NEW: Unix98
1758 user2netname NEW: Secure RPC
1759 utmpxname NEW: Unix98
1760 versionsort NEW: GNU ext.
1761 versionsort64 NEW: GNU ext.
1762 waitid NEW: Unix98
1763 wcscasecmp NEW: GNU ext.
1764 wcsncasecmp NEW: GNU ext.
1765 wcsnlen NEW: GNU ext.
1766 wcstoimax NEW: ISO C 9x
1767 wcstoll NEW: ISO C 9x
1768 wcstoull NEW: ISO C 9x
1769 wcstoumax NEW: ISO C 9x
1770 wcswcs NEW: Unix98
1771 wordexp NEW: POSIX.2
1772 wordfree NEW: POSIX.2
1773 write_profiling REMOVED
1774 xdecrypt NEW: Secure RPC
1775 xdr_authdes_cred NEW: Secure RPC
1776 xdr_authdes_verf NEW: Secure RPC
1777 xdr_cryptkeyarg NEW: Secure RPC
1778 xdr_cryptkeyarg2 NEW: Secure RPC
1779 xdr_cryptkeyres NEW: Secure RPC
1780 xdr_getcredres NEW: Secure RPC
1781 xdr_key_netstarg NEW: Secure RPC
1782 xdr_key_netstres NEW: Secure RPC
1783 xdr_keybuf NEW: Secure RPC
1784 xdr_keystatus NEW: Secure RPC
1785 xdr_netnamestr NEW: Secure RPC
1786 xdr_sizeof NEW: Secure RPC
1787 xdr_unixcred NEW: sunrpc ext
1788 xencrypt NEW: Secure RPC
1789 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1790 \f
1791 Version 2.0.6
1793 * more bug fixes
1795 \f
1796 Version 2.0.5
1798 * more bug fixes
1800 * inet_ntoa is thread-safe
1802 * updwtmp is moved from libutil to libc
1804 * rewrite of cbrt function
1806 * update of timezone data
1807 \f
1808 Version 2.0.4
1810 * more bug fixes
1811 \f
1812 Version 2.0.3
1814 * more bug fixes
1815 \f
1816 Version 2.0.2
1818 * more bug fixes
1820 * add atoll function
1822 * fix complex problems in Berkeley DB code
1824 * fix math functions
1825 \f
1826 Version 2.0.1
1828 * fixed lots of header problems (especially Linux/GNU specific)
1830 * dynamic loader preserves all registers
1832 * Roland McGrath provided support for handling of auxiliary objects in
1833 the ELF dynamic loader.
1835 * support for parallel builds is improved
1836 \f
1837 Version 2.0
1839 * GNU extensions are no longer declared by default. To enable them you
1840 must define the macro `_GNU_SOURCE' in your program or compile with
1841 `-D_GNU_SOURCE'.
1843 * The library has changed from using GNU ld symbol aliases to using weak
1844 symbols where available. The ELF object file format supports weak
1845 symbols; GNU ld also supports weak symbols in the a.out format. (There
1846 is also now support for other GNU ld extensions in ELF. Use the
1847 `--with-elf' option to configure to indicate you have ELF, and
1848 `--with-gnu-ld' if using GNU ld.) This change resulted in the deletion
1849 of many files which contained only symbol aliases, reducing the size of
1850 the source and the compiled library; many other files were renamed to
1851 less cryptic names previously occupied by the symbol alias files.
1852 There is a new header file <elf.h> for programs which operate on
1853 files in the ELF format.
1855 * Converted to Autoconf version 2, so `configure' has more options.
1856 Run `configure --help' to see the details.
1858 * The library can now be configured to build profiling, highly-optimized
1859 (but undebuggable), and/or shared libraries (ELF with GNU ld only). The
1860 `--enable-profile', `--enable-omitfp', and `--enable-shared' options to
1861 `configure' enable building these extra libraries. The shared library is
1862 built by default when using both ELF and GNU ld. When shared libraries
1863 are enabled, the new library `-ldl' is available for arbitrary run-time
1864 loading of shared objects; its interface is defined in <dlfcn.h>. The
1865 new header file <link.h> gives access to the internals of the run-time
1866 dynamic linker, `ld.so'. The shell script `ldd' is similar to the
1867 application of same name on other systems and it provides information
1868 about dynamically linked binaries.
1870 * The C library now provides the run-time support code for profiling
1871 executables compiled with `-pg'. Programs can control the profiling code
1872 through the interface in <sys/gmon.h>. The `gmon.out' files written by
1873 the GNU C library can be read only by GNU `gprof' (from GNU binutils);
1874 the support for this file format was contributed by David Mosberger-Tang.
1876 * The math code has been replaced with a math library based on fdlibm from
1877 Sun, and modified by JT Conklin and Ulrich Drepper with i387 support, by
1878 Ian Taylor with `float' functions and by Ulrich Drepper with `long double'
1879 functions. The math functions now reside in a separate library, so
1880 programs using them will need to use `-lm' their linking commands.
1882 * John C. Bowman contributed optimized ix87 assembler inline functions.
1884 * Ulrich Drepper has contributed support for an `/etc/nsswitch.conf'
1885 mechanism similar to that found in Solaris 2. This is now used for the
1886 group, passwd, hosts, networks, services, protocols, rpc, ethers,
1887 shadow, netgroup, publickey, and alias databases. The `nsswitch.conf'
1888 file controls what services are used for each individual database. This
1889 works by loading shared libraries with names specified in `nsswitch.conf',
1890 so service modules can be changed or added at any time without even
1891 relinking any program. Currently there are the file, db, and NIS based
1892 NSS services available.
1894 * The new functions `strtoq' and `strtouq' parse integer values from
1895 strings, like `strtol' and `strtoul', but they return `long long int' and
1896 `unsigned long long int' values, respectively (64-bit quantities).
1898 * The new functions `strtof' and `strtold' parse floating-point values from
1899 strings, like `strtod', but they return `float' and `long double' values,
1900 respectively (on some machines `double' and `long double' are the same).
1902 * Ulrich Drepper has contributed new implementations of the floating-point
1903 printing and reading code used in the `printf' family of functions and
1904 `strtod', `strtof', and `strtold'. These new functions are perfectly
1905 accurate, and much faster than the old ones.
1907 * The implementation of the POSIX locale model was completely rewritten by
1908 Ulrich Drepper. This includes the new programs `localedef' and `locale'
1909 to compile the POSIX locale definition.
1911 * The former dummy implementations of the strcoll and strxfrm function are
1912 now replaced by fully functional code contributed by Ulrich Drepper. The
1913 collation information comes from the POSIX locale definitions.
1915 * The new header <langinfo.h> defines an interface for accessing
1916 various locale-dependent data (using the locale chosen with `setlocale').
1918 * Ulrich Drepper has contributed a new suite of functions for operation on
1919 wide-character and multibyte-character strings, in <wchar.h>;
1920 and classification and case conversion of wide characters, in <wctype.h>.
1921 These new functions are conforming to the ISO C, Amendement 1 specification.
1923 * There is now a second implementation of the standard I/O library available.
1924 It comes from GNU libg++ as was written by Per Bothner, heavily modified
1925 by Hongjiu Lu and made thread safe by Ulrich Drepper.
1927 * You can now use positional parameter specifications in format strings
1928 for the `printf' and `scanf' families of functions. For example,
1929 `printf ("Number %2$d, Mr %1$s\n", "Jones", 6);'' prints
1930 ``Number 6, Mr Jones''. This is mainly useful when providing different
1931 format strings for different languages, whose grammars may dictate
1932 different orderings of the values being printed. To support this
1933 feature, the interface for `register_printf_handler' has changed; see
1934 the header file <printf.h> for details.
1936 * The `printf' and `scanf' families of functions now understand a new
1937 formatting flag for numeric conversions: the ' flag (e.g. %'d or %'f) says
1938 to group numbers as indicated by the locale; for `scanf' and friends, this
1939 says to accept as valid only a number with all the proper grouping
1940 separators in the right places. In the default "C" locale, numbers are
1941 not grouped; but locales for specific countries will define the usual
1942 conventions (i.e. separate thousands with `,' in the US locale).
1944 * The pgrp functions have been regularized, slightly incompatibly but much
1945 less confusingly. The core functions are now `getpgid' and `setpgid',
1946 which take arguments for the PID to operate on; the POSIX.1 `getpgrp' (no
1947 argument) and BSD `setpgrp' (identical to `setpgid') functions are
1948 provided for compatibility. There is no longer an incompatible `getpgrp'
1949 with an argument declared under _BSD_SOURCE; no BSD code uses it.
1951 * The new header file <fts.h> and suite of functions simplify programs that
1952 operate on directory trees. This code comes from 4.4 BSD.
1954 * The resolver code has been updated from the BIND 4.9.5-P1 release.
1955 Parts of the code were heavily modified by Ulrich Drepper to fit in the
1956 NSS scheme used in glibc.
1958 * There is a new malloc debugging hook `__memalign_hook'.
1960 * There are new typedefs `ushort' for `unsigned short int' and `uint' for
1961 `unsigned int' in <sys/types.h>. These are for compatibility only and
1962 their use is discouraged.
1964 * The `-lmcheck' library to enable standard malloc debugging hooks is now
1965 done differently, so that it works even without GNU ld.
1967 * New function `euidaccess' checks allowed access to a file like `access',
1968 but using the effective IDs instead of the real IDs.
1970 * The time zone data files have been updated for the latest and greatest
1971 local time conventions of the countries of the world.
1973 * The new function `dirfd' extracts the file descriptor used by a DIR stream;
1974 see <dirent.h>.
1976 * The new functions `ecvt', `fcvt', and `gcvt' provide an obsolete interface
1977 for formatting floating-point numbers. They are provided only for
1978 compatibility; new programs should use `sprintf' instead. There are
1979 also equivalent function for the `long double' floating-point type and
1980 all functions also exist in a reentrant form.
1982 * The new auxiliary library `-lutil' from 4.4 BSD contains various
1983 functions for maintaining the login-record files (primarily of use to
1984 system programs such as `login'), and convenient functions for
1985 allocating and initializing a pseudo-terminal (pty) device.
1987 * Ulrich Drepper has contributed new support for System V style
1988 shared memory and IPC on systems that support it.
1990 * Ulrich Drepper has contributed several miscellaneous new functions found
1991 in System V: The `hsearch' family of functions provide an effective
1992 implementation of hash tables; `a64l' and `l64a' provide a very simple
1993 binary to ASCII mapping; `drand48' and friends provide a 48-bit random
1994 number generator.
1996 * Ulrich Drepper has contributed new reentrant counterparts for the
1997 `random' and `hsearch' families of functions; `random_r', `hsearch_r', etc.
1999 * Ulrich Drepper has contributed new, highly-optimized versions of several
2000 string functions for the i486/Pentium family of processors.
2002 * Ulrich Drepper has updated the Linux-specific code, based largely
2003 on work done in Hongjiu Lu's version of GNU libc for Linux.
2004 The GNU library now supports Linux versions 2.0.10 and later,
2005 using the ELF object file format (i[3456]86-*-linux).
2007 * Andreas Schwab has ported the C library to Linux/m68k (m68k-*-linux).
2009 * David Mosberger-Tang and Richard Henderson have ported the C library
2010 to Linux/Alpha (alpha-*-linux). Richard Henderson contributed the
2011 dynamic linking support for ELF/Alpha.
2013 * Richard Henderson contributed several Alpha optimized assembler function
2014 for arithmetic and string handling.
2016 * Ulrich Drepper has contributed a new set of message catalog functions to
2017 support multiple languages using the <libintl.h> interface, for use with
2018 his new package GNU gettext. Translation volunteers have contributed
2019 catalogs of the library's messages in Spanish, German, and Korean.
2021 * For compatibility with XPG4, Ulrich Drepper has contributed the `gencat'
2022 program and the `catgets' function for reading the catalog files it
2023 creates. (The <libintl.h> interface is preferred; we include the
2024 <nl_types.h> interface using `catgets' only for source compatibility with
2025 programs already written to use it.)
2027 * New header file <values.h> gives SVID-compatible names for <limits.h>
2028 constants.
2030 * Various new macros, declarations, and small header files for compatibility
2031 with 4.4 BSD.
2033 * New function `group_member' is a convenient way to check if a process has
2034 a given effective group ID.
2036 * When using GCC 2.7 and later, the socket functions are now declared in a
2037 special way so that passing an argument of type `struct sockaddr_in *',
2038 `struct sockaddr_ns *', or `struct sockaddr_un *' instead of the generic
2039 `struct sockaddr *' type, does not generate a type-clash warning.
2041 * New function `error' declared in header file <error.h> is a convenient
2042 function for printing error messages and optionally exiting; this is the
2043 canonical function used in GNU programs. The new functions `err', `warn',
2044 and friends in header file <err.h> are the canonical 4.4 BSD interface for
2045 doing the same thing.
2047 * The <glob.h> interface has several new flags from 4.4 BSD that extend the
2048 POSIX.2 `glob' function to do ~ and {...} expansion.
2050 * New function `unsetenv' complements `setenv' for compatibility with 4.4 BSD.
2051 `clearenv' which is used in POSIX.9 is also available.
2053 * New function `getsid' returns session ID number on systems that support it.
2055 * We have incorporated the 4.4 BSD `db' library (version 1.85). New header
2056 files <db.h> and <mpool.h> provide a rich set of functions for several
2057 types of simple databases stored in memory and in files, and <ndbm.h> is
2058 an old `ndbm'-compatible interface using the `db' functions. Link with
2059 `-ldb' to get these functions.
2061 * New macro `strdupa' copies a string like `strdup', but uses local stack
2062 space from `alloca' instead of dynamic heap space from `malloc'.
2064 * New function `strnlen' is like `strlen' but searches only a given maximum
2065 number of characters for the null terminator. `stpncpy', `strndup' and
2066 `strndupa' are similar variants for the `stpcpy', `strdup' and `strdupa'
2067 function.
2069 * New function `statfs' in header <sys/statfs.h>.
2071 * The new <argz.h> and <envz.h> interfaces contributed by Miles Bader
2072 provide convenient functions for operating on blocks of null-terminated
2073 strings.
2075 * A new suite of functions in <utmp.h> handle all the details of reading
2076 and writing the utmp file.
2078 * An implementation of the NIS/YP(tm) based NSS service was contributed by
2079 Thorsten Kukuk.
2081 * Paul Eggert and Ulrich Drepper modified the `strftime' function to be
2082 completely POSIX compliant and also implemented the extended functionality
2083 to handle alternate digit representation and alternate era date formats.
2085 * Ulrich Drepper provided an implementation of the `strptime' function
2086 defined in XPG4.2 which transforms a string into a `struct tm' value.
2088 * Paul Eggert provided the tzselect shell script as part of the timezone
2089 code. The shell script makes it easy to select the correct timezone
2090 specification.
2092 * The implementation of the malloc family of functions is completely replaced
2093 by a new implementation by Doug Lea with many improvements by Wolfram Gloger.
2094 The implementation uses the mmap function (if available) and it is
2095 optimized for the use in multi threaded programs.
2097 * Ulrich Drepper contributed a MD5 "encryption" for the crypt family of
2098 functions. This new functionality is usable by specifying a special
2099 salt string and it is compatible with implementation on *BSD systems.
2101 * Lots of functions from the XPG4.2 standard were added by Ulrich Drepper:
2102 `getsubopt' to handle second level command line options, `bsd_signal'
2103 to access BSD style `signal' functionality, the obsolete `regexp' style
2104 expression matcher.
2106 * the `lchown' function is available on system which support this
2107 functionality.
2109 * The implementation of the shadow password handling function was contributed
2110 by Ulrich Drepper.
2112 * David Mosberger-Tang changed the SunRPC implementation to be 64bit safe.
2114 * POSIX.1g support was added. The <sys/select.h> header is available,
2115 `isfdtype' and `pselect' are implemented. Craig Metz contributed an
2116 implementation of `getaddrinfo'.
2117 \f
2118 Version 1.09
2120 * For cross-compilation you should now set `BUILD_CC' instead of `HOST_CC'.
2122 * New header file <fstab.h> and new functions `getfsspec', `getfsent' and
2123 friends, for parsing /etc/fstab. This code comes from 4.4 BSD.
2125 * The new function `daemon' from 4.4 BSD is useful for server programs that
2126 want to put themselves in the background.
2128 * Joel Sherrill has contributed support for several standalone boards that
2129 run without an operating system.
2131 * `printf', `scanf' and friends now accept a `q' type modifier for long
2132 long int as well as `ll'. Formats using these might be `%qu' or `%lld'.
2134 * All of the code taken from BSD (notably most of the math and networking
2135 routines) has been updated from the BSD 4.4-Lite release.
2137 * The resolver code has been updated from the BIND-4.9.3-BETA9 release.
2139 * The new functions `getdomainname' and `setdomainname' fetch or change the
2140 YP/NIS domain name. These are system calls which exist on systems which
2141 have YP (aka NIS).
2143 * The time zone data files have been updated for the latest international
2144 conventions.
2146 * The SunRPC programs `portmap' and `rpcinfo' are now installed in
2147 $(sbindir) (usually /usr/local/sbin) instead of $(bindir).
2148 \f
2149 Version 1.08
2151 * The C library now includes support for Sun RPC, from Sun's free
2152 RPCSRC-4.0 distribution. The `portmap', `rpcinfo', and `rpcgen' programs
2153 are included. (There is still no support for YP.)
2155 * Tom Quinn has contributed a port of the C library to SGI machines running
2156 Irix 4 (mips-sgi-irix4).
2158 * The new `lockf' function is a simplified interface to the locking
2159 facilities of `fcntl', included for compatibility.
2161 * New time functions `timegm', `timelocal', and `dysize' for compatibility.
2163 * New header file <sys/timeb.h> and new function `ftime' for compatibility.
2165 * New header files <poll.h> and <sys/poll.h> and new function `poll' for
2166 compatibility.
2168 * The error message printed by `assert' for a failed assertion now includes
2169 the name of the program (if using GNU ld) and the name of the calling
2170 function (with versions of GCC that support this).
2172 * The `psignal' function is now declared in <signal.h>, not <stdio.h>.
2174 * The library now includes the <sys/mman.h> header file and memory
2175 management functions `mmap', `munmap', `mprotect', `msync', and
2176 `madvise', on systems that support those facilities.
2178 * The interface for `mcheck' has changed slightly: the function called to
2179 abort the program when an allocation inconsistency is detected now takes
2180 an argument that indicates the type of failure. The new function
2181 `mprobe' lets you request a consistency check for a particular block at
2182 any time (checks are normally done only when you call `free' or `realloc'
2183 on a block).
2185 * It is now possible to easily cross-compile the C library, building on one
2186 system a library to run on another machine and/or operating system. All
2187 you need to do is set the variable `HOST_CC' in `configparms' to the
2188 native compiler for programs to run on the machine you are building on (a
2189 few generator programs are used on Unix systems); set `CC' to the
2190 cross-compiler.
2192 * The new function `fexecve' (only implemented on the GNU system) executes
2193 a program file given a file descriptor already open on the file.
2194 \f
2195 Version 1.07
2197 * Brendan Kehoe has contributed most of a port to the DEC Alpha
2198 running OSF/1 (alpha-dec-osf1). He says it is 75% complete.
2200 * You can set the variable `libprefix' in `configparms' to specify a prefix
2201 to be prepended to installed library files; this makes it easy to install
2202 the GNU C library to be linked as `-lgnuc' or whatever.
2204 * The new `stpncpy' is a cross between `stpcpy' and `strncpy': It
2205 copies a limited number of characters from a string, and returns the
2206 address of the last character written.
2208 * You no longer need to check for whether the installed `stddef.h' is
2209 compatible with the GNU C library. configure now checks for you.
2211 * You can now define a per-stream `fileno' function to convert the
2212 stream's cookie into an integral file descriptor.
2214 * ``malloc (0)'' no longer returns a null pointer. Instead, it
2215 allocates zero bytes of storage, and returns a unique pointer which
2216 you can pass to `realloc' or `free'. The behavior is undefined if
2217 you dereference this pointer.
2219 * The C library now runs on Sony NEWS m68k machines running either
2220 NewsOS 3 or NewsOS 4.
2222 * The new `syscall' function is a system-dependent primitive function
2223 for invoking system calls. It has the canonical behavior on Unix
2224 systems, including unreliable return values for some calls (such as
2225 `pipe', `fork' and `getppid').
2227 * The error code `EWOULDBLOCK' is now obsolete; it is always defined
2228 to `EAGAIN', which is the preferred name. On systems whose kernels
2229 use two distinct codes, the C library now translates EWOULDBLOCK to
2230 EAGAIN in every system call function.
2231 \f
2232 Version 1.06
2234 * The GNU C Library Reference Manual is now distributed with the library.
2235 `make dvi' will produce a DVI file of the printed manual.
2236 `make info' will produce Info files that you can read on line using C-h i
2237 in Emacs or the `info' program.
2238 Please send comments on the manual to bug-glibc-manual@gnu.org.
2240 * The library now supports SVR4 on i386s (i386-unknown-sysv4).
2242 * Brendan Kehoe has contributed a port to Sun SPARCs running Solaris 2.
2244 * Jason Merrill has contributed a port to the Sequent Symmetry running
2245 Dynix version 3 (i386-sequent-dynix).
2247 * The library has been ported to i386s running SCO 3.2.4 (also known as SCO
2248 ODT 2.0; i386-unknown-sco3.2.4) or SCO 3.2 (i386-unknown-sco3.2).
2250 * New function `memory_warnings' lets you arrange to get warnings when
2251 malloc is running out of memory to allocate, like Emacs gives you.
2253 * The C library now contains the relocating allocator used in Emacs 19 for
2254 its editing buffers. This allocator (ralloc) minimizes allocation
2255 overhead and fragmentation by moving allocated regions around whenever it
2256 needs to. You always refer to a ralloc'd region with a "handle" (a
2257 pointer to a pointer--an object of type `void **').
2259 * There is a new `printf' format: `%m' gives you the string corresponding
2260 to the error code in `errno'.
2262 * In `scanf' formats, you can now use `%as' or `%a[' to do the normal `%s'
2263 or `%[' conversion, but instead of filling in a fixed-sized buffer you
2264 pass, the `a' modifier says to fill in a `char **' you pass with a
2265 malloc'd string.
2267 * The `fnmatch' function supports the new flag bits `FNM_LEADING_DIR' and
2268 `FNM_CASEFOLD'. `FNM_LEADING_DIR' lets a pattern like `foo*' match a
2269 name like `foo/bar'. `FNM_CASEFOLD' says to ignore case in matching.
2271 * `mkstemp' is a traditional Unix function to atomically create and open a
2272 uniquely-named temporary file.
2273 \f
2274 Version 1.05
2276 * The standard location for the file that says what the local timezone is
2277 has changed again. It is now `/usr/local/etc/localtime' (or more
2278 precisely, `${prefix}/etc/localtime') rather than `/etc/localtime'.
2280 * The distribution no longer contains any files with names longer than 14
2281 characters.
2283 * `struct ttyent' has two new flag bits: TTY_TRUSTED and TTY_CONSOLE.
2284 These are set by the new `trusted' and `console' keywords in `/etc/ttys'.
2286 * New functions `ttyslot' and `syslog' from 4.4 BSD.
2287 \f
2288 Version 1.04
2290 * The configuration process has changed quite a bit. The `configure'
2291 script is now used just like the configuration scripts for other GNU
2292 packages. The `sysdeps' directory hierarchy is much rearranged.
2293 The file `INSTALL' explains the new scheme in detail.
2295 * The header files no longer need to be processed into ANSI C and
2296 traditional C versions. There is just one set of files to install, and
2297 it will work with ANSI or old C compilers (including `gcc -traditional').
2299 * Brendan Kehoe and Ian Lance Taylor have ported the library to the
2300 MIPS DECStation running Ultrix 4.
2302 * The Sun 4 startup code (crt0) can now properly load SunOS 4 shared libraries.
2303 Tom Quinn contributed the initial code. The GNU C library can NOT yet be
2304 made itself into a shared library.
2306 * Yet further improved support for the i386, running 4.3 BSD-like systems
2307 (such as Mach 3 with the Unix single-server), or System V.
2309 * New function `strncasecmp' to do case-insensitive string comparison
2310 with limited length.
2312 * New function `strsep' is a reentrant alternative to `strtok'.
2314 * New functions `scandir' and `alphasort' for searching directories.
2316 * New function `setenv' is a better interface to `putenv'.
2318 * Ian Lance Taylor has contributed an implementation of the SVID `ftw'
2319 function for traversing a directory tree.
2321 * The GNU obstack package is now also part of the C library.
2322 The new function `open_obstack_stream' creates a stdio stream that
2323 writes onto an obstack; `obstack_printf' and `obstack_vprintf' do
2324 formatted output directly to an obstack.
2326 * Miscellaneous new functions: reboot, nice, sigaltstack (4.4 BSD only),
2327 cfmakeraw, getusershell, getpass, swab, getttyent, seteuid, setegid.
2329 * `FNM_FILE_NAME' is another name for `FNM_PATHNAME', used with `fnmatch'.
2331 * The new functions `strfry' and `memfrob' do mysterious and wonderful
2332 things to your strings.
2334 * There are some new test programs: test-fseek, testmb, and testrand.
2336 * Some work has been done to begin porting the library to 4.4 BSD and Linux.
2337 These ports are not finished, but are a good starting place for really
2338 supporting those systems.
2340 * `/etc/localtime' is now the standard location for the file that says what
2341 the local timezone is, rather than `/usr/local/lib/zoneinfo/localtime'.
2342 This follows the general principle that `/etc' is the place for all local
2343 configuration files.
2345 * The C library header files now use `extern "C"' when used by the C++
2346 compiler, so the C library should now work with C++ code.
2348 * The header file <bstring.h> is gone. <string.h> now declares bcopy,
2349 bcmp, bzero, and ffs. (Update: nowadays these functions are declared
2350 in <strings.h>.)
2352 * Mike Haertel (of GNU e?grep and malloc fame) has written a new sorting
2353 function which uses the `merge sort' algorithm, and is said to be
2354 significantly faster than the old GNU `qsort' function. Merge sort is
2355 now the standard `qsort' function. The new algorithm can require a lot
2356 of temporary storage; so, the old sorting function is called when the
2357 required storage is not available.
2359 * The C library now includes Michael Glad's Ultra Fast Crypt, which
2360 provides the Unix `crypt' function, plus some other entry points.
2362 * The code and header files taken from 4.4 BSD have been updated with the
2363 latest files released from Berkeley.
2364 \f
2365 ----------------------------------------------------------------------
2366 Copyright information:
2368 Copyright (C) 1992-2013 Free Software Foundation, Inc.
2370 Permission is granted to anyone to make or distribute verbatim copies
2371 of this document as received, in any medium, provided that the
2372 copyright notice and this permission notice are preserved,
2373 thus giving the recipient permission to redistribute in turn.
2375 Permission is granted to distribute modified versions
2376 of this document, or of portions of it,
2377 under the above conditions, provided also that they
2378 carry prominent notices stating who last changed them.
2379 \f
2380 Local variables:
2381 version-control: never
2382 fill-column: 76
2383 End: