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ee9247c3 1GNU C Library NEWS -- history of user-visible changes.
d4697bc9 2Copyright (C) 1992-2014 Free Software Foundation, Inc.
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3See the end for copying conditions.
4
d9814526 5Please send GNU C library bug reports via <http://sourceware.org/bugzilla/>
69be6aaf 6using `glibc' in the "product" field.
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7\f
8Version 2.19
9
10* The following bugs are resolved with this release:
11
c8c9ab8b 12 156, 387, 431, 762, 832, 926, 2801, 4772, 6786, 6787, 6807, 6810, 7003,
9f529d7c 13 9721, 9954, 10253, 10278, 11087, 11157, 11214, 12100, 12486, 12751, 12986,
497b1e69 14 13028, 13982, 13985, 14029, 14032, 14120, 14143, 14155, 14286, 14547,
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15 14699, 14752, 14782, 14876, 14910, 15004, 15048, 15073, 15089, 15128,
16 15218, 15268, 15277, 15308, 15362, 15374, 15400, 15425, 15427, 15483,
17 15522, 15531, 15532, 15593, 15601, 15608, 15609, 15610, 15632, 15640,
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18 15670, 15672, 15680, 15681, 15723, 15734, 15735, 15736, 15748, 15749,
19 15754, 15760, 15763, 15764, 15797, 15799, 15825, 15843, 15844, 15846,
20 15847, 15849, 15850, 15855, 15856, 15857, 15859, 15867, 15886, 15887,
21 15890, 15892, 15893, 15895, 15897, 15901, 15905, 15909, 15915, 15917,
22 15919, 15921, 15923, 15939, 15941, 15948, 15963, 15966, 15985, 15988,
23 15997, 16032, 16034, 16036, 16037, 16038, 16041, 16046, 16055, 16071,
24 16072, 16074, 16077, 16078, 16103, 16112, 16143, 16144, 16146, 16150,
25 16151, 16153, 16167, 16169, 16172, 16195, 16214, 16245, 16271, 16274,
26 16283, 16289, 16293, 16314, 16316, 16330, 16337, 16338, 16356, 16365,
27 16366, 16369, 16372, 16375, 16379, 16384, 16385, 16386, 16387, 16390,
28 16394, 16398, 16400, 16407, 16408, 16414, 16430, 16431, 16453, 16474,
29 16506, 16510
141f3a77 30
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31* Slovenian translations for glibc messages have been contributed by the
32 Translation Project's Slovenian team of translators.
33
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34* The public headers no longer use __unused nor __block. This change is to
35 support compiling programs that are derived from BSD sources and use
36 __unused internally, and to support compiling with Clang's -fblock
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37 extension which uses __block.
38
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39* CVE-2012-4412 The strcoll implementation caches indices and rules for
40 large collation sequences to optimize multiple passes. This cache
41 computation may overflow for large collation sequences and may cause a
42 stack or buffer overflow. This is now fixed to use a slower algorithm
43 which does not use a cache if there is an integer overflow.
44
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45* CVE-2012-4424 The strcoll implementation uses malloc to cache indices and
46 rules for large collation sequences to optimize multiple passes and falls
47 back to alloca if malloc fails, resulting in a possible stack overflow.
48 The implementation now falls back to an uncached collation sequence lookup
49 if malloc fails.
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50
51* CVE-2013-4788 The pointer guard used for pointer mangling was not
52 initialized for static applications resulting in the security feature
53 being disabled. The pointer guard is now correctly initialized to a
54 random value for static applications. Existing static applications need
55 to be recompiled to take advantage of the fix (bug 15754).
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56
57* CVE-2013-4237 The readdir_r function could write more than NAME_MAX bytes
58 to the d_name member of struct dirent, or omit the terminating NUL
59 character. (Bugzilla #14699).
60
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61* CVE-2013-4332 The pvalloc, valloc, memalign, posix_memalign and
62 aligned_alloc functions could allocate too few bytes or corrupt the
63 heap when passed very large allocation size values (Bugzilla #15855,
64 #15856, #15857).
65
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66* CVE-2013-4458 Stack overflow in getaddrinfo with large number of results
67 for AF_INET6 has been fixed (Bugzilla #16072).
68
82bab04b 69* New locales: ak_GH, anp_IN, ar_SS, cmn_TW, hak_TW, lzh_TW, nan_TW, pap_AW,
b46d046e 70 pap_CW, quz_PE, the_NP.
ddd9fb8f 71
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72* Substantially revised locales: gd_GB, ht_HT
73
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74* The LC_ADDRESS field was updated to support country_car for almost all
75 supported locales.
ddd9fb8f 76
3e181dda 77* ISO 1427 definitions were updated.
7447ccd9 78
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79* ISO 3166 definitions were updated.
80
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81* The localedef utility now supports --big-endian and --little-endian
82 command-line options to generate locales for a different system from that
83 for which the C library was built.
84
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85* Binary locale files now only depend on the endianness of the system for
86 which they are generated and not on other properties of that system. As a
87 consequence, binary files generated with new localedef may be incompatible
88 with old versions of the GNU C Library, and binary files generated with
89 old localedef may be incompatible with this version of the GNU C Library,
90 in the following circumstances:
91
92 + Locale files may be incompatible on m68k systems.
93
94 + Locale archive files (but not separate files for individual locales) may
95 be incompatible on systems where plain "char" is signed.
96
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97* The configure option --disable-versioning has been removed. Builds with
98 --disable-versioning had not worked for several years.
99
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100* ISO 639 definitions were updated for Chiga (cgg) and Chinese (gan, hak, czh,
101 cjy, lzh, cmn, mnp, cdo, czo, cpx, wuu, hsn, yue).
e35696c3 102
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103* SystemTap probes for malloc have been introduced.
104
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105* SystemTap probes for slow multiple precision fallback paths of
106 transcendental functions have been introduced.
107
8b7d57cd 108* Support for powerpc64le has been added.
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109
110* The soft-float powerpc port now supports e500 processors.
0a3ac0aa 111
fd712ef3 112* Support for STT_GNU_IFUNC symbols added for ppc32/power4+ and ppc64.
7011c262 113
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114* A new feature test macro _DEFAULT_SOURCE is available to enable the same
115 set of header declarations that are enabled by default, even when other
116 feature test macros or compiler options such as -std=c99 would otherwise
117 disable some of those declarations.
118
7011c262 119* The _BSD_SOURCE feature test macro no longer enables BSD interfaces that
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120 conflict with POSIX. The libbsd-compat library (which was a dummy library
121 that did nothing) has also been removed.
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122
123* Preliminary documentation about Multi-Thread, Async-Signal and
124 Async-Cancel Safety has been added.
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125\f
126Version 2.18
127
128* The following bugs are resolved with this release:
129
17db6e8d 130 2546, 2560, 5159, 6809, 7006, 10060, 10062, 10283, 10357, 10686, 11120,
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131 11561, 12310, 12387, 12492, 12515, 12723, 13550, 13889, 13951, 13988,
132 14142, 14176, 14200, 14256, 14280, 14293, 14317, 14327, 14478, 14496,
133 14582, 14686, 14812, 14888, 14894, 14907, 14908, 14909, 14920, 14952,
134 14964, 14981, 14982, 14985, 14991, 14994, 14996, 15000, 15003, 15006,
135 15007, 15014, 15020, 15022, 15023, 15036, 15054, 15055, 15062, 15078,
136 15084, 15085, 15086, 15100, 15160, 15214, 15221, 15232, 15234, 15283,
137 15285, 15287, 15304, 15305, 15307, 15309, 15327, 15330, 15335, 15336,
138 15337, 15339, 15342, 15346, 15359, 15361, 15366, 15380, 15381, 15394,
139 15395, 15405, 15406, 15409, 15416, 15418, 15419, 15423, 15424, 15426,
140 15429, 15431, 15432, 15441, 15442, 15448, 15465, 15480, 15485, 15488,
141 15490, 15492, 15493, 15497, 15506, 15529, 15536, 15553, 15577, 15583,
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142 15618, 15627, 15631, 15654, 15655, 15666, 15667, 15674, 15711, 15755,
143 15759.
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144
145* CVE-2013-2207 Incorrectly granting access to another user's pseudo-terminal
146 has been fixed by disabling the use of pt_chown (Bugzilla #15755).
147 Distributions can re-enable building and using pt_chown via the new configure
148 option `--enable-pt_chown'. Enabling the use of pt_chown carries with it
149 considerable security risks and should only be used if the distribution
150 understands and accepts the risks.
1cef1b19 151
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152* CVE-2013-0242 Buffer overrun in regexp matcher has been fixed (Bugzilla
153 #15078).
154
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155* CVE-2013-1914 Stack overflow in getaddrinfo with many results has been
156 fixed (Bugzilla #15330).
7fffbdff 157
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158* Add support for calling C++11 thread_local object destructors on thread
159 and program exit. This needs compiler support for offloading C++11
160 destructor calls to glibc.
161
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162* Improved worst case performance of libm functions with double inputs and
163 output.
164
165* Support for priority inherited mutexes in pthread condition variables on
166 non-x86 architectures.
167
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168* Port to Xilinx MicroBlaze contributed by David Holsgrove.
169
170* Optimized string functions for AArch64. Implemented by Marcus Shawcroft.
171
172* Optimized string functions for ARM. Implemented by Will Newton and
173 Richard Henderson.
174
175* Optimized libm functions for SPARC. Implemented by David S. Miller.
176
177* Support for building more of ARM glibc as Thumb-2 code. Implemented by
178 Richard Henderson.
179
180* Support for building most of MIPS glibc as MIPS16 code. Implemented by
181 Chung-Lin Tang, Maciej W. Rozycki and Maxim Kuvyrkov.
182
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183* Added a benchmark framework to track performance of functions in glibc.
184
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185* New <math.h> macro named issignaling to check for a signaling NaN (sNaN).
186 It is based on draft TS 18661 and currently enabled as a GNU extension.
58206c68 187
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188* On Linux, the clock function now uses the clock_gettime system call
189 for improved precision, rather than old times system call.
61dd6208 190
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191* Added support for version-3 tz format files. This is needed when using
192 the tz database release 2013e or later, and affects a few unusual cases --
193 currently only TZ='America/Godthab' for time stamps after 2037.
194
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195* Added new API functions pthread_getattr_default_np and
196 pthread_setattr_default_np to get and set the default pthread
197 attributes of a process.
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198
199* Added support for TSX lock elision for pthread mutexes on i386 and x86-64.
200 This may improve lock scaling of existing programs on TSX capable systems.
201 When the --enable-lock-elision=yes parameter is specified at configure
202 time lock elision will be enabled by default for all PTHREAD_MUTEX_DEFAULT
203 mutexes.
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204
205* Support added for AT_HWCAP2 (to coincide with Linux kernel 3.10
206 availability). Implemented by Ryan S. Arnold.
207
208* Support added for POWER8 platform. Implemented by Ryan S. Arnold.
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209\f
210Version 2.17
211
212* The following bugs are resolved with this release:
213
80ceeaee 214 1349, 3439, 3479, 3665, 5044, 5246, 5298, 5400, 6530, 6677, 6778, 6808,
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215 9685, 9914, 10014, 10038, 10114, 10191, 10631, 10873, 11438, 11607, 11638,
216 11741, 12140, 13013, 13412, 13542, 13601, 13603, 13604, 13629, 13679,
217 13696, 13698, 13717, 13741, 13759, 13761, 13763, 13881, 13939, 13950,
218 13952, 13966, 14042, 14047, 14090, 14150, 14151, 14152, 14154, 14157,
219 14166, 14173, 14195, 14197, 14237, 14246, 14251, 14252, 14283, 14298,
220 14303, 14307, 14328, 14331, 14336, 14337, 14347, 14349, 14368, 14376,
221 14417, 14447, 14459, 14476, 14477, 14501, 14505, 14510, 14516, 14518,
222 14519, 14530, 14532, 14538, 14543, 14544, 14545, 14557, 14562, 14568,
223 14576, 14579, 14583, 14587, 14595, 14602, 14610, 14621, 14638, 14645,
224 14648, 14652, 14660, 14661, 14669, 14672, 14683, 14694, 14716, 14719,
225 14743, 14767, 14783, 14784, 14785, 14793, 14796, 14797, 14801, 14803,
226 14805, 14807, 14811, 14815, 14821, 14822, 14824, 14828, 14831, 14833,
227 14835, 14838, 14856, 14863, 14865, 14866, 14868, 14869, 14871, 14872,
228 14879, 14889, 14893, 14898, 14914.
14bc93a9 229
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230* Optimization of memcpy for MIPS.
231
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232* CVE-2011-4609 svc_run() produces high cpu usage when accept fails with
233 EMFILE has been fixed (Bugzilla #14889).
7a845b2c 234
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235* The add-on ports collection is now distributed in the "ports" subdirectory
236 of the main GNU C Library distribution, rather than separately.
237
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238* Port to ARM AArch64 contributed by Linaro.
239
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240* Support for STT_GNU_IFUNC symbols added for s390 and s390x.
241 Optimized versions of memcpy, memset, and memcmp added for System z10 and
242 zEnterprise z196.
243 Implemented by Andreas Krebbel.
244
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245* The new function secure_getenv allows secure access to the environment,
246 returning NULL if running in a SUID/SGID process. This function replaces
247 the internal function __secure_getenv.
248
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249* SystemTap static probes have been added into the dynamic linker.
250 Implemented by Gary Benson.
251
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252* Optimizations of string functions strstr, strcasestr and memmem.
253 Implemented by Maxim Kuvyrkov.
254
7aab07e4 255* The minimum Linux kernel version that this version of the GNU C Library
6dad2c06 256 can be used with is 2.6.16.
7aab07e4 257
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258* Optimizations of string functions memchr, wcschr, wcscpy, and wcsrchr for
259 powerpc POWER7. Implemented by Will Schmidt.
260
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261* New configure option --disable-nscd builds the C library such that it
262 never attempts to contact the Name Service Caching Daemon (nscd).
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263 New configure option --disable-build-nscd avoids building nscd itself;
264 this is the default if --disable-nscd is used.
3cc3ef96 265
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266* Improved support for cross-compilation, including cross-testing and
267 bootstrap builds without a previously built glibc.
268
85429b1a 269* Several testsuite tests are now able to test multiple IFUNC variants of an
0d224d52 270 interface, rather than just testing the one that would be chooen by
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271 default.
272
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273* New configure options --with-bugurl and --with-pkgversion, for
274 distributors to use to embed their bug-reporting and package version
275 information in --help and --version output.
276
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277* The ttyname and ttyname_r functions on Linux now fall back to searching for
278 the tty file descriptor in /dev/pts or /dev if /proc is not available. This
279 allows creation of chroots without the procfs mounted on /proc.
280
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281* The `crypt' function now fails if passed salt bytes that violate the
282 specification for those values. On Linux, the `crypt' function will
283 consult /proc/sys/crypto/fips_enabled to determine if "FIPS mode" is
284 enabled, and fail on encrypted strings using the MD5 or DES algorithm
285 when the mode is enabled.
286
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287* The `clock_*' suite of functions (declared in <time.h>) is now available
288 directly in the main C library. Previously it was necessary to link with
289 -lrt to use these functions. This change has the effect that a
290 single-threaded program that uses a function such as `clock_gettime' (and
291 is not linked with -lrt) will no longer implicitly load the pthreads
292 library at runtime and so will not suffer the overheads associated with
293 multi-thread support in other code such as the C++ runtime library.
5a04f376 294
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295* New locales: ayc_PE, doi_IN, ia_FR, mni_IN, nhn_MX, niu_NU, niu_NZ,
296 sat_IN, and szl_PL.
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297\f
298Version 2.16
299
300* The following bugs are resolved with this release:
301
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302 174, 208, 350, 369, 411, 706, 766, 887, 2074, 2541, 2547, 2548, 2550,
303 2551, 2552, 2553, 2554, 2562, 2563, 2565, 2566, 2570, 2576, 2636, 2678,
304 3335, 3440, 3748, 3768, 3866, 3868, 3906, 3976, 3992, 4026, 4108, 4596,
305 4822, 5077, 5461, 5805, 5993, 6471, 6486, 6578, 6649, 6730, 6770, 6794,
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306 6884, 6890, 6894, 6895, 6907, 6911, 6959, 7064, 9739, 9902, 10110, 10135,
307 10140, 10153, 10210, 10254, 10346, 10375, 10545, 10716, 10846, 11174,
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308 11261, 11322, 11365, 11451, 11494, 11521, 11677, 11837, 11959, 12047,
309 12097, 12193, 12194, 12297, 12298, 12301, 12340, 12354, 12416, 12495,
310 13058, 13223, 13361, 13525, 13526, 13527, 13528, 13529, 13530, 13531,
311 13532, 13533, 13547, 13551, 13552, 13553, 13555, 13556, 13559, 13563,
312 13566, 13576, 13579, 13583, 13592, 13594, 13613, 13618, 13637, 13656,
313 13658, 13673, 13691, 13695, 13704, 13705, 13706, 13718, 13726, 13738,
314 13739, 13743, 13750, 13758, 13760, 13761, 13775, 13786, 13787, 13792,
315 13806, 13824, 13840, 13841, 13844, 13846, 13848, 13851, 13852, 13854,
316 13871, 13872, 13873, 13879, 13882, 13883, 13884, 13885, 13886, 13892,
317 13895, 13908, 13910, 13911, 13912, 13913, 13914, 13915, 13916, 13917,
318 13918, 13919, 13920, 13921, 13922, 13923, 13924, 13926, 13927, 13928,
319 13938, 13941, 13942, 13954, 13955, 13956, 13963, 13967, 13968, 13970,
320 13973, 13979, 13983, 13986, 13996, 14012, 14027, 14033, 14034, 14036,
321 14040, 14043, 14044, 14048, 14049, 14050, 14053, 14055, 14059, 14064,
322 14075, 14080, 14083, 14103, 14104, 14109, 14112, 14117, 14122, 14123,
323 14134, 14153, 14183, 14188, 14199, 14210, 14218, 14229, 14241, 14273,
324 14277, 14278.
380d7e87 325
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326* Support for the x32 ABI on x86-64 added. The x32 target is selected by
327 configuring glibc with:
328 BUILD_CC='gcc' CC='gcc -mx32' CXX='g++ -mx32'
329 Visit <http://sites.google.com/site/x32abi/> for more x32 ABI info.
330 Implemented by H.J. Lu.
331
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332* ISO C11 support:
333
334 + define static_assert
335
336 + do not declare gets
337
338 + declare at_quick_exit and quick_exit also for ISO C11
339
340 + aligned_alloc. NB: The code is deliberately allows the size parameter
341 to not be a multiple of the alignment. This is a moronic requirement
342 in the standard but it is only a requirement on the caller, not the
343 implementation.
8d44e150 344
74033a25 345 + timespec_get added
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346
347 + uchar.h support added
d75a0a62 348
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349 + CMPLX, CMPLXF, CMPLXL added
350
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351 Implemented by Ulrich Drepper.
352
9dc4e1fb 353* Support for the IA-64 has been moved to ports.
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354
355* Remove support for anything but ELF binary format
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356
357* Checking versions of poll, ppoll added.
358 Implemented by Ulrich Drepper.
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359
360* More generic and 64-bit performance optimizations to math functions.
361 Implemented by Ulrich Drepper.
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362
363* New configure option --enable-obsolete-rpc makes the deprecated RPC
364 headers and functions available at compile time as they were before
365 version 2.14. This option will be removed at some time in the future
366 after the TI-RPC library becomes fully sufficient for the needs of
367 existing applications.
ffb7875d 368
21708942 369* Compatibility code for Linux kernel versions before 2.4 has been removed.
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370 Note that glibc is not expected to work with any Linux kernel version
371 before 2.6.
83678f76 372
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373* New header <sys/auxv.h> and function getauxval allowing easy access to
374 the AT_* key-value pairs passed from the Linux kernel. The header also
375 defines the HWCAP_* bits associated with the AT_HWCAP key.
376
83678f76 377* New locales: mag_IN
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378
379* New configure option --enable-systemtap builds SystemTap static probes
380 into libc for setjmp and longjmp and into libpthread for various operations.
381 So far the setjmp/longjmp probes and some of the libpthread probes are
382 provided only for i*86 and x86_64.
383 Implemented by Roland McGrath and Rayson Ho.
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384
385* Optimized expf for x86-32 and x86-64. Implemented by Liubov Dmitrieva.
386
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387* More optimized functions for PowerPC. Implemented by Adhemerval Zanella
388 and Will Schmidt.
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389
390* More optimized functions for SPARC. Implemented by David S. Miller.
391
392* Improved support for cross-compilation, especially bootstrap builds
393 without a previously built glibc.
394
395* Ports for the TILE-Gx and TILEPro families of processors. Contributed by
396 Chris Metcalf from Tilera.
397
398* Support for the old ARM ABI has been removed from ports. Only the EABI is
399 now supported for ARM processors.
400
401* The hard-float variant of the ARM EABI now uses /lib/ld-linux-armhf.so.3
402 as the name of the dynamic linker, to distinguish it from the
403 /lib/ld-linux.so.3 dynamic linker used for the base EABI.
404
405* Support for CRIS has been removed from ports.
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406
407* A new class of installed header has been documented for low-level
408 platform-specific functionality. PowerPC added the first instance with a
409 function to provide time base register access. Contributed by Tulio
410 Magno Quites Machado Filho.
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411
412* ix86 configurations now install header files that are consistent with
413 what x86-64 configurations install. These same header files can be used
414 for -m32, -m64, or -mx32 builds.
415 Contributed by H.J. Lu.
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416
417* Math library bug fixes. A thorough audit of all open math library bugs was
418 conducted by Joseph Myers. Significant progress was made on many math
419 library bugs resulting in more accurate exceptions and function results.
420 Many thanks to all those that contributed including Andreas Jaeger for his
421 patch review and work on the x87 trigonometric instruction issues.
422
423* Timezone data is no longer installed. Timezone-related binaries and scripts
424 will continue to be installed. Users should obtain their timezone data from
425 their distribution provider or from the tzdata package at
426 <ftp://munnari.oz.au/pub/>.
ee1a7fab 427\f
e80fab37 428Version 2.15
11988f8f 429
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430* The following bugs are resolved with this release:
431
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432 6779, 6783, 9696, 10103, 10709, 11589, 11929, 12403, 12786, 12840, 12847,
433 12868, 12852, 12874, 12885, 12892, 12906, 12907, 12922, 12935, 12962,
434 13007, 13021, 13061, 13062, 13067, 13068, 13085, 13088, 13090, 13092,
435 13096, 13114, 13118, 13123, 13134, 13138, 13147, 13150, 13166, 13179,
436 13185, 13189, 13192, 13268, 13276, 13282, 13291, 13305, 13328, 13335,
437 13337, 13344, 13358, 13367, 13413, 13416, 13423, 13439, 13446, 13472,
438 13484, 13506, 13515, 13523, 13524, 13538, 13540
c0244a9d 439
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440* New program pldd to list loaded object of a process
441 Implemented by Ulrich Drepper.
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442
443* Add nss_db support back to glibc. No more dependency on Berkeley db
444 and support for initgroups lookups.
445 Implemented by Ulrich Drepper.
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446
447* Optimized strcpy, strncpy, stpcpy, stpncpy for SSE2 and SSSE3 on x86-32.
448 Contributed by HJ Lu.
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449
450* Improved strcpy, strncpy, stpcpy, stpncpy for SSE2 and SSSE3 on x86-64.
451 Contributed by HJ Lu.
99710781 452
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453* Optimized strcat, strncat on x86-64 and optimized wcscmp, wcslen, strnlen
454 on x86-32 and x86-64.
99710781 455 Contributed by Liubov Dmitrieva.
c55fbd1e 456
d42964a0 457* Optimized strchr and strrchr for SSE on x86-32.
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458 Contributed by Liubov Dmitrieva.
459
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460* Optimized memchr, memrchr, rawmemchr, memcmp, wmemcmp, wcschr, wcscpy
461 for x86-64 and x86-32.
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462 Contributed by Liubov Dmitrieva.
463
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464* New interfaces: scandirat, scandirat64
465 Implemented by Ulrich Drepper.
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466
467* Checking versions of FD_SET, FD_CLR, and FD_ISSET added.
468 Implemented by Ulrich Drepper.
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469
470* nscd now also caches the netgroup database.
471 Implemented by Ulrich Drepper.
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472
473* Integrate libm with gcc's -ffinite-math-only option.
474 Implemented by Ulrich Drepper.
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475
476* Lots of generic, 64-bit, and x86-64-specific performance optimizations
477 to math functions. Implemented by Ulrich Drepper.
478
479* Optimized strcasecmp and strncasecmp for AVX on x86-64.
480 Implemented by Ulrich Drepper.
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481
482* New Linux interfaces: process_vm_readv, process_vm_writev
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483
484* Optimized strcasecmp and strncasecmp for SSSE3 and SSE4.2 on x86-32.
485 Implemented by Ulrich Drepper.
a1267ba1 486
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487* Optimized nearbyint and strcasecmp for PPC.
488 Implemented by Adhemerval Zanella.
2655fd5c 489
6b64057b 490* New locales: bho_IN, unm_US, es_CU, ta_LK
e80fab37 491\f
dded88cd 492Version 2.14
9f94d2ea 493
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494* The following bugs are resolved with this release:
495
553149f6 496 386, 6420, 7101, 9730, 9732, 9809, 10138, 10149, 10157, 11099, 11257,
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497 11258, 11487, 11532, 11558, 11578, 11634, 11653, 11668, 11697, 11724,
498 11781, 11799, 11820, 11837, 11857, 11869, 11892, 11895, 11901, 11945,
7ae22829 499 11947, 11952, 11987, 12052, 12083, 12158, 12178, 12200, 12346, 12350,
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500 12393, 12420, 12432, 12445, 12449, 12453, 12454, 12460, 12469, 12489,
501 12509, 12510, 12511, 12518, 12527, 12541, 12545, 12551, 12582, 12583,
502 12587, 12597, 12601, 12611, 12625, 12626, 12631, 12650, 12653, 12655,
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503 12660, 12671, 12681, 12684, 12685, 12711, 12713, 12714, 12717, 12723,
504 12724, 12734, 12738, 12746, 12766, 12775, 12777, 12782, 12788, 12792,
f16846a5 505 12795, 12811, 12813, 12814, 12841
50934221 506
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507* The RPC implementation in libc is obsoleted. Old programs keep working
508 but new programs cannot be linked with the routines in libc anymore.
509 Programs in need of RPC functionality must be linked against TI-RPC.
6b1e7d19 510 The TI-RPC implementation is IPv6 enabled and there are other benefits.
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511
512 Visible changes of this change include (obviously) the inability to link
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513 programs using RPC functions without referencing the TI-RPC library and the
514 removal of the RPC headers from the glibc headers.
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515 Implemented by Ulrich Drepper.
516
c6489db3 517* New Linux interfaces: clock_adjtime, name_to_handle_at, open_by_handle_at,
f1f929d7 518 syncfs, setns, sendmmsg
83fe108b 519
72d1dddb 520* New locales: os_RU, bem_ZA, en_ZA, ff_SN, sw_KE, sw_TZ, lb_LU, wae_CH,
a7b80ed5 521 yue_HK, lij_IT, mhr_RU
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522
523* New encodings: CP770, CP771, CP772, CP773, CP774
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524
525* New program sotruss to trace calls through PLTs
526 Implemented by Ulrich Drepper.
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527
528* The malloc hook implementation is marked deprecated and will be removed
529 from the default implementation in the next version. The design never
530 worked ever since the introduction of threads. Even programs which do
531 not create threads themselves can use multiple threads created internally.
9f94d2ea 532\f
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533Version 2.13
534
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535* The following bugs are resolved with this release:
536
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537 3268, 6812, 7066, 10085, 10484, 10563, 10851, 11149, 11155, 11577, 11611,
538 11640, 11655, 11701, 11840, 11856, 11883, 11903, 11904, 11968, 11979,
539 12005, 12037, 12067, 12077, 12078, 12092, 12093, 12107, 12108, 12113,
540 12140, 12159, 12167, 12191, 12194, 12201, 12204, 12205, 12207, 12348,
541 12378, 12394, 12397
ac2b484c 542
10b3bedc 543* New Linux interfaces: prlimit, prlimit64, fanotify_init, fanotify_mark
c08fb0d7 544
ac2b484c 545* POWER7 optimizations: memset, memcmp, strncmp
8d50becc 546
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547* New optimized string functions for x86-64: strnlen (SSE2),
548 strcasecmp (SSE2, SSSE3, SSE4.2), strncasecmp (SSE2, SSSE3, SSE4.2)
8d50becc 549 Implemented by Ulrich Drepper.
4828935d 550\f
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551Version 2.12
552
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553* The following bugs are resolved with this release:
554
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555 3662, 4457, 5553, 10162, 10401, 10414, 10554, 10824, 10864, 10915,
556 10918, 10936, 10939, 10958, 10968, 10969, 10972, 10992, 11000, 11001,
557 11007, 11010, 11027, 11039, 11040, 11041, 11043, 11046, 11056, 11070,
558 11093, 11115, 11125, 11126, 11127, 11134, 11141, 11149, 11183, 11184,
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559 11185, 11186, 11187, 11188, 11189, 11190, 11191, 11192, 11193, 11194,
560 11200, 11230, 11235, 11242, 11254, 11258, 11271, 11272, 11276, 11279,
561 11287, 11292, 11319, 11332, 11333, 11387, 11389, 11390, 11394, 11397,
5ae958d7 562 11410, 11438, 11449, 11470, 11471, 11520, 11537, 11538, 11571
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563
564* New interfaces: pthread_getname_np, pthread_setname_np
d36b9613 565
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566* New Linux interface: recvmmsg
567
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568* STT_GNU_IFUNC implemented for Sparc by David Miller.
569
570* The dynamic linker now recognizes supported ABI versions from the
571 EI_ABIVERSION field in the ELF header.
572 Implemented by Ulrich Drepper.
573
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574* New NIS mode selector ADJUNCT_AS_SHADOW. The passwd.adjunct.byname table
575 will not be used to fill in password fields in the passwd.byname replies.
576 Instead it is used to synthesize the shadow.byname table, should it be
577 missing. This is a useful mode in some installations involving Solaris.
578 Implemented by Ulrich Drepper.
579
d36b9613 580* New locales: kok_IN, sq_MK, cv_RU
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581\f
582Version 2.11
583
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584* The following bugs are resolved with this release:
585
586 3270, 7094, 9924, 9986, 10011, 10085, 10107, 10159, 10162, 10166, 10183,
587 10195, 10196, 10200, 10203, 10207, 10211, 10213, 10217, 10221, 10229,
588 10262, 10286, 10312, 10315, 10319, 10349, 10360, 10391, 10402, 10416,
589 10418, 10422, 10425, 10446, 10448, 10452, 10540, 10553, 10560, 10564,
590 10609, 10643, 10692, 10713, 10717, 10730, 10731, 10742, 10780, 10784,
591 10789, 10817, 10823, 10840, 10847
592
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593* New interfaces: execvpe, pthread_sigqueue, mkstemps, mkstemps64, mkostemps,
594 mkostemps64
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595 Implemented by Ulrich Drepper.
596
24ab9c76 597* Checking version of longjmp added that fails if an uninitialized stack
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598 frame would be created. Implemented by Ulrich Drepper.
599
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600* STT_GNU_IFUNC is now supported in static executables.
601 Implemented by H.J. Lu.
602
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603* STT_GNU_IFUNC implemented for PPC by Alan Modra.
604
0122f28e 605* New optimized string functions for x86-64: strstr, strcasestr, memcmp,
9d36a6c4 606 strcspn, strpbrk, strspn, strcpy, stpcpy, strncpy, strcmp (SSE2, SSE4.2),
7f3146e7 607 strncmp (SSE2, SSE4.2), strchr (SSE4.2), strrchr (SSE4.2).
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608 Contributed by H.J. Lu.
609
9d36a6c4 610 strlen, rawmemchr, strcmp (SSSE3), strncmp (SSSE3).
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611 Implemented by Ulrich Drepper.
612
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613* New optimized string functions for x86: strlen, strcspn, strspn, strpbrk,
614 strstr, strcasestr.
615 Contributed by H.J. Lu.
616
617* Support for fma instruction in AVX on x86-64.
618 Implemented by H.J. Lu and Ulrich Drepper.
619
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620* AVX support in x86-64 auditing support in ld.so.
621 Implemented by H.J. Lu.
622
623* STB_GNU_UNIQUE support added.
624 Implemented by Ulrich Drepper.
625
626* Implement second fallback mode for optimized DNS lookup for even more
627 broken environments. If two requests from the same port are not
628 handled correctly close the socket and open a new one before sending
629 the second request. The 'single-request-reopen' option in /etc/resolv.conf
630 can be used to select this mode right away, instead of rediscovering the
631 necessity is every process again.
632 Implemented by Ulrich Drepper.
633
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634* New resolver flag RES_USE_DNSSEC to enable use of verified lookup.
635 Implemented by Adam Tkac.
636
637* Optimized iconv conversions for S390x.
638 Implemented by Andreas Krebbel.
639
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640* Using condvars with PI mutexes is now more efficient due to kernel
641 support for requeueing to PI futexes. NPTL support added for x86-64.
642 Implemented by Ulrich Drepper.
643
9dd5b8a1 644* New locales: ps_AF, my_MM
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645\f
646Version 2.10
647
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648* The following bugs are resolved with this release:
649
650 697, 5381, 5807, 6411, 6545, 7040, 7058, 7067, 7080, 7083, 7095, 7098,
651 9677, 9694, 9697, 9701, 9704, 9705, 9706, 9720, 9726, 9730, 9733, 9736,
652 9741, 9750, 9753, 9759, 9781, 9791, 9793, 9823, 9833, 9844, 9880, 9881,
653 9891, 9893, 9895, 9913, 9916, 9920, 9948, 9955, 9957, 9963, 9985, 10052,
654 10069, 10086, 10087, 10090, 10092, 10093, 10100, 10118, 10128
655
bb066545 656* New interfaces: preadv, preadv64, pwritev, pwritev64, malloc_info
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657 Implemented by Ulrich Drepper.
658
425ce2ed 659* New Linux interfaces: accept4, fallocate, fallocate64.
e109c612 660 Implemented by Ulrich Drepper.
6f5c3117 661
1fdd89a7 662* Correct declarations of string function when used in C++ code. This
735be400 663 could lead to compile errors for invalid C++ code.
1fdd89a7 664
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665* XPG7/POSIX 2008 compilation environment. Many GNU-specific functions are
666 now in POSIX.
77db439e 667
1f04d005 668* New POSIX 2008 interface: psiginfo
6cbe890a 669 Implemented by Ulrich Drepper.
1f04d005 670
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671* New ISO C++1x interfaces: quick_exit, at_quick_exit
672 Implemented by Ulrich Drepper.
673
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674* Support for selecting between multiple function definitions at runtime
675 using STT_GNU_IFUNC symbols. Implemented by Ulrich Drepper.
676
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677* The libcrypt library can now use the hash function implementations in
678 NSS. Implemented by Ulrich Drepper.
679
680* The malloc implementation can be compiled to be less memory efficient
681 but higher performing in multi-threaded programs.
682 Implemented by Ulrich Drepper.
683
735be400 684* New locales: nan_TW@latin, ks_IN
878b72c5 685
84aa52d7 686* Faster strlen, strchr, strchrnul, strrchr, memchr, and rawmemchr for x86-64.
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687 Implemented by Ulrich Drepper.
688
689* Extended printf hook support. It is possible to use user-defined types
690 and extend existing format specifiers.
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691 Implemented by Ulrich Drepper.
692
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693* Handling for group shadow files has been added.
694 Implemented by Ulrich Drepper.
695
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696* DNS IPv4-IPv6 parallel lookup now deals better with broken DNS
697 servers (the case, e.g., for some people using the built-in DNS
698 server in ADSL modems/routers). There is a once-per-process timeout
699 in case of a broken server. To avoid it, users can run nscd or put
700 'options single-request' in /etc/resolv.conf.
701 Implemented by Ulrich Drepper.
28919a77 702\f
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703Version 2.9
704
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705* The following bugs are resolved with this release:
706
707 3406, 5209, 5210, 5381, 5794, 5814, 5911, 6428, 6438, 6442, 6447, 6461,
708 6472, 6505, 6544, 6589, 6612, 6634, 6653, 6654, 6657, 6698, 6712, 6713,
709 6719, 6723, 6724, 6740, 6763, 6771, 6790, 6791, 6817, 6824, 6839, 6843,
710 6845, 6856, 6857, 6860, 6867, 6875, 6919, 6920, 6942, 6947, 6955, 6966,
711 6968, 6974, 6980, 6995, 7008, 7009, 7029
712
b29899ae 713* Unified lookup for getaddrinfo: IPv4 and IPv6 addresses are now looked
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714 up at the same time. Implemented by Ulrich Drepper.
715
716* TLS descriptors for LD and GD on x86 and x86-64.
717 Implemented by Alexandre Oliva.
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718
719* getaddrinfo now handles DCCP and UDPlite.
720 Implemented by Ulrich Drepper.
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721
722* New fixed-size conversion macros: htobe16, htole16, be16toh, le16toh,
723 htobe32, htole32, be32toh, le32toh, htobe64, htole64, be64toh, le64toh.
724 Implemented by Ulrich Drepper.
725
726* New implementation of memmem, strstr, and strcasestr which is O(n).
727 Implemented by Eric Blake.
e038616f 728
8ec2550e 729* New Linux interfaces: inotify_init1, dup3, epoll_create1, pipe2
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730
731* Implement "e" option for popen to open file descriptor with the
ebcc1f4d 732 close-on-exec flag set. Implemented by Ulrich Drepper.
e038616f 733
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734* Implement "b" mode for fmemopen. In this mode writes writes don't
735 implicitly add a NUL byte and seeks from the end of the buffer really
736 use the buffer end, not the string length as the basis.
737 Implemented by Ulrich Drepper.
738
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739* Many functions, exported and internal, now atomically set the close-on-exec
740 flag when run on a sufficiently new kernel. Implemented by Ulrich Drepper.
48b22986 741
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742* Sorting rules for some Indian languages (Kannada, Gurumukhi, Telugu,
743 Sinhala)
48b22986 744 Implemented by Pravin Satpute.
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745
746* New locales: sd_IN, sd_IN@devanagari, ks_IN@devanagari, ht_HT, en_AG, nl_AW.
b29899ae 747\f
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748Version 2.8
749
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750* The following bugs are resolved with this release:
751
752 2549, 3112, 4314, 4407, 4997, 5012, 5040, 5112, 5204, 5208, 5209, 5220,
753 5222, 5224, 5225, 5237, 5238, 5240, 5245, 5277, 5346, 5375, 5378, 5382,
754 5424, 5427, 5428, 5435, 5436, 5439, 5441, 5442, 5443, 5451, 5452, 5454,
755 5455, 5463, 5464, 5465, 5475, 5477, 5478, 5520, 5541, 5545, 5553, 5600,
756 5602, 5607, 5614, 5627, 5628, 5736, 5737, 5741, 5753, 5760, 5762, 5768,
757 5774, 5777, 5778, 5779, 5786, 5790, 5818, 5854, 5857, 5903, 5939, 5979,
758 5983, 5995, 5998, 6004, 6007, 6020, 6021, 6024, 6040, 6042
759
e038616f 760* New locales: bo_CN, bo_IN, shs_CA.
b4354cf4 761
77751669 762* New encoding: HP-ROMAN9, HP-GREEK8, HP-THAI8, HP-TURKISH8.
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763
764* Sorting rules for some Indian languages (Devanagari and Gujarati).
765 Implemented by Pravin Satpute.
766
767* IPV6 addresses in /etc/resolv.conf can now have a scope ID
768
769* nscd caches now all timeouts for DNS entries
770 Implemented by Ulrich Drepper.
771
772* nscd is more efficient and wakes up less often.
773 Implemented by Ulrich Drepper.
774
775* More checking functions: asprintf, dprintf, obstack_printf, vasprintf,
776 vdprintf, and obstack_vprintf.
777 Implemented by Jakub Jelinek.
778
779* Faster memset for x86-64.
780 Implemented by Harsha Jagasia and H.J. Lu.
781
782* Faster memcpy on x86.
783 Implemented by Ulrich Drepper.
784
785* ARG_MAX is not anymore constant on Linux. Use sysconf(_SC_ARG_MAX).
786 Implemented by Ulrich Drepper.
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787
788* Faster sqrt and sqrtf implemention for some PPC variants.
d990b282 789 Implemented by Steven Munroe.
46c38bd7 790\f
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791Version 2.7
792
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793* The following bugs are resolved with this release:
794
795 4125, 4126, 4178, 4359, 4407, 4512, 4514, 4525, 4554, 4556, 4557, 4566,
796 4582, 4586, 4588, 4599, 4610, 4647, 4702, 4705, 4726, 4745, 4772, 4773,
797 4775, 4776, 4792, 4813, 4814, 4816, 4833, 4858, 4860, 4896, 4905, 4925,
798 4936, 4937, 4938, 4941, 4946, 4963, 4972, 5010, 5028, 5043, 5058, 5063,
799 5071, 5103, 5104, 5112, 5113, 5184, 5186
800
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801* More checking functions: fread, fread_unlocked, open*, mq_open.
802 Implemented by Jakub Jelinek and Ulrich Drepper.
803
804* Extend fortification to C++. Implemented by Jakub Jelinek.
805
806* Implement 'm' modifier for scanf. Add stricter C99/SUS compliance
807 by not recognizing 'a' as a modifier when those specs are requested.
808 Implemented by Jakub Jelinek.
809
810* PPC optimizations to math and string functions.
811 Implemented by Steven Munroe.
812
28919a77 813* New interfaces: mkostemp, mkostemp64. Like mkstemp* but allow additional
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814 options to be passed. Implemented by Ulrich Drepper.
815
816* More CPU set manipulation functions. Implemented by Ulrich Drepper.
817
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818* New Linux interfaces: signalfd, eventfd, eventfd_read, and eventfd_write.
819 Implemented by Ulrich Drepper.
820
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821* Handle private futexes in the NPTL implementation.
822 Implemented by Jakub Jelinek and Ulrich Drepper.
823
824* Add support for O_CLOEXEC. Implement in Hurd. Use throughout libc.
825 Implemented by Roland McGrath and Ulrich Drepper.
826
827* Linux/x86-64 vDSO support. Implemented by Ulrich Drepper.
828
829* SHA-256 and SHA-512 based password encryption.
830 Implemented by Ulrich Drepper.
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831
832* New locales: ber_DZ, ber_MA, en_NG, fil_PH, fur_IT, fy_DE, ha_NG, ig_NG,
833 ik_CA, iu_CA, li_BE, li_NL, nds_DE, nds_NL, pap_AN, sc_IT, tk_TM, ug_CN,
834 yo_NG.
835
836+ New iconv modules: MAC-CENTRALEUROPE, ISO-8859-9E, KOI8-RU.
837 Implemented by Ulrich Drepper.
e1db0493 838\f
11bf311e 839Version 2.6
46c38bd7 840
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841* The following bugs are resolved with this release:
842
843 3156, 3213, 3285, 3291, 3306, 3313, 3320, 3322, 3325, 3326, 3334, 3348,
844 3352, 3363, 3369, 3426, 3427, 3429, 3451, 3458, 3465, 3480, 3483, 3493,
845 3514, 3515, 3559, 3632, 3664, 3673, 3674, 3745, 3747, 3818, 3840, 3842,
846 3851, 3855, 3884, 3885, 3902, 3905, 3919, 3944, 3954, 3955, 3957, 3991,
847 3995, 3996, 4024, 4040, 4069, 4070, 4074, 4076, 4096, 4101, 4102, 4114,
848 4130, 4131, 4181, 4276, 4306, 4342, 4344, 4349, 4364, 4368, 4381, 4392,
849 4403, 4405, 4406, 4411, 4438, 4439, 4455, 4456, 4465, 4512, 4514, 4586,
850 4702, 4858
851
bce20b9a 852* New Linux interfaces: epoll_pwait, sched_getcpu.
46c38bd7 853
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854* New generic interfaces: strerror_l.
855
b21fa963 856* nscd can now cache the services database. Implemented by Ulrich Drepper.
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857\f
858Version 2.5
859
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860* The following bugs are resolved with this release:
861
862 39, 68, 192, 352, 388, 531, 935, 1006, 1201, 1203, 1386, 1782, 1783, 1784,
863 1785, 1786, 1787, 1951, 1974, 1996, 2072, 2098, 2125, 2134, 2158, 2182,
864 2349, 2376, 2386, 2389, 2415, 2418, 2420, 2423, 2450, 2451, 2466, 2472,
865 2473, 2477, 2498, 2499, 2501, 2502, 2505, 2507, 2508, 2509, 2517, 2526,
866 2569, 2571, 2592, 2611, 2625, 2632, 2644, 2662, 2680, 2683, 2684, 2693,
867 2695, 2703, 2734, 2751, 2764, 2766, 2775, 2792, 2821, 2823, 2832, 2841,
868 2843, 2883, 2892, 2908, 2914, 2926, 2961, 2978, 2980, 2987, 2997, 2998,
869 3013, 3018, 3034, 3040, 3044, 3123, 3124, 3137, 3138, 3143, 3155, 3189,
870 3225, 3251, 3252, 3253, 3273
871
3af48b5b 872* For Linux, the sorting of addresses returned by getaddrinfo now also
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873 handles rules 3, 4, and 7 from RFC 3484. I.e., all rules are handled.
874 Implemented by Ulrich Drepper.
3af48b5b 875
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876* Allow system admin to configure getaddrinfo with the /etc/gai.conf file.
877 Implemented by Ulrich Drepper.
878
871b9158 879* New Linux interfaces: splice, tee, sync_file_range, vmsplice.
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880
881* New iconv module for MIK. Contributed by Alexander Shopov.
3af48b5b 882
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883* For sites with broken group and/or passwd database, the auto-propagate
884 option of nscd can prevent creating ID lookup entries from the results
885 of a name lookup and vice versa. This usually is no problem but some
457b559e 886 site might have problems with the default behavior.
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887 Implemented by Ulrich Drepper.
888
07bfff20 889* Iterating over entire database in NIS can be slow. With the
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890 SETENT_BATCH_READ option in /etc/default/nss a system admin can decide
891 to trade time for memory. The entire database will be read at once.
892 Implemented by Ulrich Drepper.
893
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894* The interfaces introduced in RFC 3542 have been implemented by
895 Ulrich Drepper.
896
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897* Support for the new ELF hash table format was added by Ulrich Drepper.
898
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899* Support for priority inheritance mutexes added by Jakub Jelinek and
900 Ulrich Drepper.
901
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902* Support for priority protected mutexes added by Jakub Jelinek.
903
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904* New locales: nr_ZA, pa_PK, ca_AD, ca_FR, ca_IT, el_CY, tr_CY, as_IN,
905 or_IN, csb_PL, fy_NL, sr_ME.
2e92188d 906\f
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907Version 2.4
908
909* More overflow detection functions.
910
911* New iconv converters for IBM1025, IBM1122, IBM1137, IBM1153,
912 IBM1154, IBM1155, IBM1156, IBM1157, and IBM1158 contributed by Jiro Sekiba.
1aa4e40a 913
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914 More converters for IBM803, IBM901, IBM902, IBM921, IBM1008, IBM1097,
915 IBM1112, IBM1123, IBM1130, IBM1140, IBM1141, IBM1142, IBM1143, IBM1144,
916 IBM1145, IBM1146, IBM1147, IBM1148, IBM1149, IBM1166, IBM1167, IBM4517,
917 IBM4899, IBM4909, IBM4971, IBM5347, IBM9030, IBM9066, IBM9448, IBM12712,
918 IBM16804, IBM1364, IBM1371, IBM1388, IBM1390, and IBM1399 contributed
919 by Masahide Washizawa.
920
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921* It is now possible to install audit libraries for the dynamic linker using
922 LD_AUDIT. Implemented by Ulrich Drepper.
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923
924* The LinuxThreads add-on, providing pthreads on Linux 2.4 kernels, is no
925 longer supported. The new NPTL implementation requires Linux 2.6 kernels.
926 For a libc and libpthread that works well on Linux 2.4 kernels, we
927 recommend using the stable 2.3 branch.
4973cbe5 928
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929* The new function open_wmemstream acts like open_memstream,
930 but uses a wchar_t wide character buffer.
931
932* The new function ppoll is an improved version of poll, similar to pselect.
933
934* New interfaces: fdopendir, openat, fstatat, fchmodat, fchownat,
935 futimesat, faccessat, mkdirat, mkfifoat, mknodat,
936 renameat, unlinkat, linkat, symlinkat, readlinkat.
937
938* New Linux kernel system calls: unshare,
939 inotify_init, inotify_add_watch, inotify_rm_watch.
940
941* The euidaccess function is now also known by the alias eaccess,
942 for compatibility with some other systems.
943
944* Timezone data updated to 2006b version.
137e6462 945\f
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946Version 2.3.6
947
948* The following bugs are resolved with this release:
949
950 38, 253, 549, 622, 653, 721, 758, 851, 877, 915, 934, 955, 961,
951 1016, 1037, 1076, 1079, 1080, 1081, 1082, 1083, 1084, 1085, 1086,
952 1087, 1088, 1090, 1091, 1092, 1093, 1094, 1095, 1096, 1097, 1098,
953 1099, 1100, 1101, 1102, 1103, 1104, 1105, 1106, 1107, 1108, 1109,
954 1110, 1111, 1112, 1113, 1125, 1137, 1138, 1249, 1250, 1251, 1252,
955 1253, 1254, 1350, 1358, 1394, 1438, 1498, 1534
956
957 Visit <http://sources.redhat.com/bugzilla/> for the details of each bug.
958
959* As of this release, GCC 4 can be used to compile the C Library.
960
961* Timezone data updated to 2005m version.
962\f
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963Version 2.3.5
964
965* The following bugs are resolved with this release:
966
967 284, 592, 602, 626, 633, 640, 650, 661, 671, 681, 693, 700, 710, 719,
968 722, 723, 725, 726, 727, 728, 729, 730, 731, 732, 733, 734, 735, 736,
969 737, 738, 739, 740, 741, 742, 743, 744, 745, 765, 767, 768, 769, 776,
970 777, 787, 821, 822, 823, 825
971
972 Visit <http://sources.redhat.com/bugzilla/> for the details of each bug.
973\f
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974Version 2.3.4
975
976* Support for RFC 3678. Real implementations exist only for Linux so far.
977 Implemented by Ulrich Drepper.
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978
979* nscd can now cache entries persistently. Expiring entries are reloaded.
980 For speedups the cache can be shared in memory with client processes.
981 Implemented by Ulrich Drepper.
982
983* nscd can now perform SELinux checks.
984 Implemented by Matthew Rickard <mjricka@epoch.ncsc.mil>.
985
0325dd20 986* getaddrinfo queries are now cached. Canonical name lookup is performed
8a1f658b
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987 efficiently.
988 Implemented by Ulrich Drepper.
989
990* The nothrow function attribute is used when headers are used by gcc when
991 compiling C code. This can avoid significant amounts of exception
992 handling data.
993
994* The malloc functions perform more error checking and are stricter when
995 it comes to reacting on errors. The default action is to terminate
0325dd20 996 the process after showing an error message. Implemented by Ulrich Drepper.
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997
998* Reverse lookups of IPv6 addresses does not use bit string or .ip6.int
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999 lookups anymore unless explicitly requested. Implemented by Ulrich Drepper.
1000
1001* Namespaces in ld.so are implemented. DSOs can be loaded in separate
1002 namespaces using the new function dlmopen(). This feature is of course,
1003 like most other dynamic loading functionality, not available in statically
1004 linked applications. Implemented by Ulrich Drepper.
1005
1006* Low-overhead boundary checking variants of string and some stdio functions
1007 were added. These are to be used in conjunction with a gcc patch by
1008 Jakub Jelinek which adds calls to these functions if possible.
720817e7
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1009 Implemented by Jakub Jelinek and Ulrich Drepper.
1010
1011* Old code for several operating systems and machine architectures that
1012 have not been in working condition in a long time have been removed from
1013 the main source tree maintained by the GNU C Library's maintainers.
1014 These files are now reside in the separate `ports' source module
1015 that is usable as an add-on when building the library.
a55bda85 1016\f
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1017Version 2.3.3
1018
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1019* New functions `dladdr1' and `dlinfo' in <dlfcn.h> provide more ways to
1020 interrogate the dynamic linker, compatible with the Solaris interface.
1021
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1022* ELF thread-local storage support (TLS) now works on PowerPC and PowerPC64;
1023 implemented by Paul Mackerras, Steven Munroe, and Roland McGrath.
925c3c5c 1024
69be6aaf 1025* getifaddrs now uses the netlink interface on Linux to get its information.
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1026 Implemented by Thorsten Kukuk.
1027
1028* getaddrinfo now implements AI_V4MAPPED, AI_ALL, and AI_ADDRCONF.
1029 Implemented by Ulrich Drepper.
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1030
1031* support for non-executable stacks on x86 has been added. Changes mostly
1032 by Roland McGrath.
1033
c5af724c 1034* regex is now much faster for multibyte locales. Changes by Jakub Jelinek
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1035 and Ulrich Drepper.
1036
1037* getaddrinfo now performs destination address selection according to
1038 RFC 3484.
3a601d31 1039\f
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1040Version 2.3.2
1041
f87277f2
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1042* Thread-safe interfaces for many functions that access locale data
1043 were added in version 2.3, but these features were omitted from NEWS.
1044 Many functions have variants with an `_l' suffix that take a `locale_t'
1045 object as a parameter rather than consulting the current locale.
1046 The new functions `newlocale', `duplocale', and `freelocale' in <locale.h>
1047 create and maintain `locale_t' objects. Additionally, the new function
1048 `uselocale' sets "the current locale" (as used by functions not so
1049 parameterized) set for an individual thread. These features were added
1050 in version 2.3, implemented by Ulrich Drepper and Roland McGrath.
1051
747bf98e
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1052* The functions getresuid, getresgid, setresuid, and setresgid, which
1053 have long been available on Linux, are now declared in <unistd.h>
1054 and are now also available on the Hurd.
1055
1056* ELF thread-local storage support (TLS) now works on x86-64.
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1057
1058* The new dynamic string token $LIB is expanded in shared library names.
1059 This normally expands to lib, but on some 64-bit platforms to lib64 instead.
52a16e58 1060
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1061* Aldy Hernandez contributed complete software floating point support for
1062 PowerPC machines with no FPU.
1063
52a16e58 1064* fexecve is implemented on Linux.
f9ad060c 1065
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1066* The `btowc' function should work at least twice as fast due to
1067 specialized callbacks in the iconv modules. Implemented by Bruno Haible.
9ef0a840
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1068
1069* With approriate thread add-ons cancelable functions are now implemented
1070 in libc.so as well. No need to call the function in libpthread. This
1071 change allowed to finally disable the incorrect and expensive handling
1072 of weak definition in ld.so.
1073
1074* Yet more PLT entries in libc.so have been removed. We finally arrived
1075 at the bare minimum. Startup times improved appropriately.
1076
1077* Support for the new Linux/x86 system call interface was added. The
1078 AT_SYSINFO auxiliary vector entry is recognized and handled.
747bf98e 1079\f
03a2c647 1080Version 2.3
37fb1084 1081
03a2c647
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1082* Masahide Washizawa contributed iconv modules for IBM1163 and IBM1164
1083 charsets.
1084
1085* iconv (the program and the interface) now accepts empty names (excluding
1086 options like //TRANSLIT) to mean "use charset of current locale".
47e8b443 1087
bb0ec5bd 1088* localedef can now transliterate characters in strings which are not in
47e8b443 1089 the provided charmap. The information from the input locale is used.
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1090
1091* Prelinking support was added for ELF targets. This requires additional
1092 tools and recent versions of the GNU binutils. Contributed by Jakub Jelinek.
8e57fc70 1093
bb0ec5bd 1094* Read-only stdio streams now use mmap to speed up operation by eliminating
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1095 copying and buffer underflows. To use add 'm' to the mode string of
1096 the fopen/fdopen/freopen call. Implemented by Ulrich Drepper.
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1097
1098* The malloc functions were completely rewritten by Wolfram Gloger based
1099 on Doug Lea's malloc-2.7.0.c.
3b0bdc72 1100
bb0ec5bd 1101* Isamu Hasegawa contributed a completely new and POSIX-conformant
3b0bdc72 1102 implementation of regex.
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1103
1104* Bruno Haible upgraded the iconv and locale implementation to support
1105 Unicode 3.2.
be45f421 1106
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1107* Contents of the LC_* and LANG environment variables in the CEN style are
1108 not recognized anymore. It never was used. Change by Ulrich Drepper.
be45f421 1109
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1110* The runtime (ld.so, libc, libpthread for Linux) now can handle the ELF
1111 thread-local storage (TLS) ABI on some platforms.
1112 Changes by Ulrich Drepper. SH support by Kaz Kojima.
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1113
1114* Bruno Haible contributed iconv converters for ISO-2022-JP-3, SHIFT JIS-X0213,
f87277f2 1115 EUC-JISX0213, and TSCII.
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1116
1117* New header <ifaddrs.h> with functions `getifaddrs' and `freeifaddrs':
1118 BSD-compatible interface for getting all network interface addresses.
1119 Implementation for IPv4 by Roland McGrath.
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1120
1121* Loading of locale data is faster due to the introduction of a locale
1122 archive. Implemented by Roland McGrath and Ulrich Drepper.
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1123
1124* Startup times are significantly reduced by not using exported functions
1125 inside the library itself. Changes by Jakub Jelinek, Roland McGrath,
1126 and Ulrich Drepper.
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1127
1128* Steven Munroe contributed a port to PowerPC64/Linux.
1129\f
45061a15
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1130Version 2.2.6
1131
1132* The Hurd now uses the GNU libio implementation of stdio rather than the
1133 old GNU stdio implementation, and uses a new ABI (libc.so.0.3).
1134
1135* The Hurd on x86 now has the `ioperm' function and <sys/io.h> header file
1136 with the same behavior as the Linux system call of the same name.
03a2c647 1137\f
a8ae31c2
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1138Version 2.2.5
1139
76321a25
AJ
1140* Stephen Moshier implemented log2, log10, powl and cbrtl for the
1141 128-bit long double format.
a8ae31c2 1142
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1143* Masahide Washizawa contributed iconv modules for IBM1132, IBM1133, IBM1160,
1144 IBM1161, and IBM1162 charsets.
a8ae31c2 1145
ad2e4f18 1146* Andreas Jaeger contributed a port to x86-64/Linux.
a8ae31c2 1147
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1148* Peter Bruin contributed a port to PowerPC/Hurd.
1149
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1150* libc functions using I/O streams now can handle wide-oriented streams
1151 as well.
1152
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1153* optimizations in the dynamic linker. Binaries created by recent binutils
1154 versions start up quicker due to reduced time spent on relocations.
8e57fc70
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1155
1156* Support for use of gcc3 added by Jakub Jelinek and HJ Lu.
7d0c5823 1157\f
33996419
AJ
1158Version 2.2.4
1159
2995f70e 1160* Stephen Moshier implemented cosh, expm1, log1p, acos, sinh, tanh,
aff17a50 1161 asinh, atanh, j0 for the 128-bit long double format.
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1162
1163* Bruno Haible updated all the code handling Unicode in some form to
1164 support Unicode 3.1.
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1165
1166* Speed of regex for single-byte locales is back to previous levels.
1167 Patch by Isamu Hasegawa.
045fcd26 1168
69d5f925 1169* Alpha, SPARC, and IA-64 now also using floating stacks.
045fcd26 1170
69d5f925 1171* Startup time of internationalized applications greatly improved through
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1172 iconv cache. Use iconvconfig to generate the cache file.
1173 Contributed by Ulrich Drepper.
1174
1175* The IA-64 specific part of ld.so was rewritten to eliminate some pretty
1176 severe performance problems. Patch by David Mosberger.
1177
1178* The Hurd port got a lot more functionality like AIO, various stdio
1179 extensions, etc. Mainly done by Roland McGrath.
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1180
1181* mtrace can now lookup symbols in shared libraries.
33996419 1182\f
2ace5721
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1183Version 2.2.3
1184
1746f2b0 1185* Intel's IA-64 math library is largely integrated. It provides fast and
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1186 accurate implementatations for most basic and standard math functions
1187 in float, double, and long double format.
1188
f128331c 1189* Stephen Moshier implemented j0, j1, jn, y0, y1, yn, lgamma, erf, erfc,
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1190 and asin for the 96-bit long double format and asin, log, tan for the
1191 128-bit long double format.
07f951e4 1192
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1193* The beginning of a last-bit accurate math library by IBM Haifa were added.
1194 The basic double functions exist today. Contributed by Abraham Ziv
1195 <ziv@il.ibm.com>, Moshe Olshansky <olshansk@il.ibm.com>, Ealan Henis
1196 <ealan@il.ibm.com>, and Anna Reitman <reitman@il.ibm.com>.
1197
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1198* An asynchronous name lookup library was added. The interface is designed
1199 after POSIX AIO. The proposal was circulated beforehand to get comments.
1200 No negative ones came in. Implemented by Ulrich Drepper.
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1201
1202* Port to S390/64bit contributed by Martin Schwidefsky
1203 <schwidefsky@de.ibm.com>.
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1204
1205* David Mosberger <davidm@hpl.hp.com> implemented the setcontext family
1206 of functions for Linux/IA-64.
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1207
1208* The RPC code is now thread safe. Threads can now use the same service
1209 of different services at the same time. Patch by Eric Norum
1210 <eric.norum@usask.ca> with some help by Ulrich Drepper.
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1211
1212* Martin Schwidefsky <schwidefsky@de.ibm.com> implemented the setcontext
1213 family of functions for Linux/S390.
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1214
1215* Ulrich Drepper <drepper@redhat.com> implemented the setcontext family
1216 of functions for Linux/x86.
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1217
1218* Port to Linux/CRIS contributed by Axis Communications.
2ace5721 1219\f
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1220Version 2.2.2
1221
464d97ec 1222* Lots of headers were cleaned up. Using the tool in the conform/ subdir
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1223 we can now check for namespace violations and missing declarations. The
1224 result is that almost all headers are now Unix-compliant (as defined in
1225 the upcoming XPG6). The negative side is that some programs might need
1226 corrections, too, if they depend on the incorrect form of the headers in
1227 previous versions which defined too many symbols and included too many
1228 other headers.
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1229
1230* regex now handles multibyte character sets correctly.
1231 Contributed by Isamu Hasegawa <isamu@yamato.ibm.com>.
1232
1233* iconv (the program) does now conform to the upcoming XPG6 and handles
1234 charmaps. Instead of the charset names the path of charmaps can be
1235 provided and the conversion happens based on this data.
1236 Contributed by Ulrich Drepper.
1237
1238* The locale program now provides detailed information about the installed
1239 locales. While
1240
1241 locale -a
1242
1243 only lists the names of the supported locales
1244
1245 locale -a --verbose
1246
1247 provides details such as country, language, and codeset name.
1248 Contributed by Ulrich Drepper.
306eeae5 1249\f
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1250Version 2.2.1
1251
1252* The gencat program now parses the input file according to the charset
1253 selected by the LC_CTYPE category. This is important for stateful
1254 character sets. To make generating catalogs easier there is a way
1255 to overwrite the charset selected by the locale: before the first
1256 message or $ quote line the catalog can contain a line like
1257
1258 $ codeset=ISO-8859-2
1259
1260 to select the charset (ISO-8859-2 in this case).
1261
1262 Implemented by Shinya Hanataka and Ulrich Drepper.
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1263
1264* New codeset conversion modules: IBM-922 (Estonia PC codeset),
1265 IBM-1124 (Ukraine PC codeset), IBM-1129 (Vietnamese PC codeset).
1266 Contributed by Masahide Washizawa <washi@jp.ibm.com>.
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1267
1268* Optimized string functions for Alpha ev6 and ev67 by Richard Henderson
1269 <rth@redhat.com> and Rick Gorton <rick.gorton@alpha-processor.com>.
1270
1271* The LANGUAGE environment variable is now ignored unless the locale is
1272 changed from the default "C" locale.
1273
1274* The usual bug fixes.
d2defdc4 1275\f
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1276Version 2.2
1277
08a2e4a0
GM
1278* Greg McGary added runtime support for bounds checking using gcc's
1279 new -fbounded-pointers option. ix86 target is complete. PowerPC
1280 is in progress.
1281
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1282* Thorsten Kukuk added secure mode support to nscd.
1283
793bd4d9 1284* The Berkeley db libraries have been removed.
2e92188d 1285
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1286 Related, the nss_db module is now in a separate package since it
1287 obviously requires a database library being available.
1288
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1289* Wide character I/O streams implemented by Ulrich Drepper.
1290
abbffdf9 1291* Functions from the extended socket API added by Ulrich Drepper.
01c771d0 1292
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1293* Functions feenableexcept and fedisableexcept to control the
1294 behaviour of individual exceptions have been added by Andreas Jaeger.
1295
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1296* ldconfig program added by Andreas Jaeger and Jakub Jelinek.
1297
d3436b3c
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1298* The resolver code has been updated from bind 8.2.3-T5B which supports
1299 threads. The integration was done by Andreas Jaeger, Adam D. Bradley,
1300 and Mark Kettenis.
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1301
1302 This change could in some situations effect backward compatibility. Since
1303 now `_res' is a thread-local instead of a global variable, modifying it
1304 in one thread does not have any effect in other threads.
66ac0abe 1305
a00c3ca9 1306 The resolver library was also extended to allow IPv6 as the transport
d3436b3c
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1307 protocol for the requests. This work was done by Stig Venaas.
1308
1c5d4617
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1309* Compatibility code for K&R C compilers has been removed from the
1310 header files. A ISO C compiler is needed to use the library
1311 (conforming to either C89 or C99 standard).
1312
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1313* Complete rewrite of the localedef program to support multibyte character
1314 sets. Implement handling of ISO 14651 and ISO 14652. Rewrite strcoll,
1315 strxfrm, wcscoll, and wcsxfrm functions. Make isw*() functions work.
1316 Implemented by Ulrich Drepper.
1317
8f3f1e09
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1318 Bruno Haible significantly improved the generation and use of the data
1319 structures for the wide character tables.
1320
abbffdf9
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1321* Plural handling in gettext implemented by Ulrich Drepper.
1322
69173865
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1323* The utmp daemon has been removed.
1324
1325* The port to MIPS-Linux has been finished by Andreas Jaeger.
1326
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1327* A port to Hitachi SH3 and SH4 has been contributed by Kazumoto Kojima
1328 and Yutaka Niibe.
1329
594cee6c
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1330* POSIX clocks and timers implemented by Kaz Kylheku and Ulrich Drepper.
1331
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1332* POSIX barriers implemented by Kaz Kylheku.
1333
594cee6c
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1334* POSIX spawn function family implemented by Ulrich Drepper.
1335
1336* POSIX spinlocks are now available.
1337
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1338* Timed wait functions for mutex, rwlock, and semaphores are implemented.
1339
8f3f1e09
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1340* the configure option --enable-kernel=X.Y.Z allows to strip out
1341 compatibility for kernel versions before X.Y.Z. This is currently only
1342 implemented for Linux.
1343
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1344* the sockaddr_in6 structure changed. The IPv6 working group added a new
1345 field sin6_scope_id. This means that all programs using IPv6 should be
1346 recompiled. Don't expect binary compatibility with previous glibc
1347 versions.
1348
d2830ba4
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1349* various conversion modules for IBM character sets contributed by
1350 Masahide Washizawa.
1351
8f3f1e09 1352* IA-64 port by Jes Sorensen and HJ Lu.
6f2a8167
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1353\f
1354Version 2.1.3
1355
1356* bug fixes
1357
01c771d0
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1358\f
1359Version 2.1.2
1360
1361* bug fixes
1362
28f540f4 1363\f
e518937a
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1364Version 2.1.1
1365
27995311
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1366* New ISO C 9x function _Exit, imaxabs, and imaxdiv are added.
1367
16b0f634
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1368* New xdr functions are added; some rpc functions are now 64bit clean.
1369
407d26b7 1370* Fixed a number of bugs and memory leaks (especially in NIS+ code).
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1371
1372* Fixed known incompatibilities with glibc 2.0.
1373
407d26b7 1374* New functions lock64, strchrnul, rawmemchr, getutmp and getutmpx.
16b0f634 1375
407d26b7 1376* Optimized a number of functions (especially the ELF dynamic loader).
16b0f634
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1377
1378* Update timezone data files.
27995311 1379
554b8800
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1380* lots of charmaps corrections
1381
1382* some new locale definitions and charmaps
1383
e518937a 1384\f
c84142e8
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1385Version 2.1
1386
da2d1bc5
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1387* Richard Henderson corrected size of struct timeval on Linux/Alpha to
1388 conform to POSIX member type requirements. Symbol versions have been
1389 adjusted as needed within the library, and for direct use by applications,
1390 but there is potential for problems if third-party libraries use
1391 struct timeval as part of their interface. This does not present
1392 a problem for X and other "essential" system libraries.
1393
c84142e8 1394* An additional locale model to support C++ Standard Library locale
1fb05e3d 1395 model and probably more was implemented by Ulrich Drepper.
c84142e8 1396
1fb05e3d 1397* Eric Youngdale and Ulrich Drepper implemented versioning of objects on
c84142e8
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1398 symbol level.
1399
1400* Miles Bader provided the `argp' function family to support hierachical
1401 command line argument parsing, layered on top of getopt.
377a515b 1402
cbdee279 1403* strtod accepts new hexadecimal floating-point format from ISO C 9X.
377a515b
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1404
1405* printf has two new specifiers %a and %A to print hexadecimal flaoting-point
cbdee279 1406 numbers.
377a515b 1407
cbdee279 1408* scanf recognizes the %a and %A format for scanning floating point numbers.
e61abf83 1409
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1410* the new headers <stdint.h> and <inttypes.h> from ISO C 9X provides
1411 information and interfaces for the available integer types.
e61abf83 1412
813f4f4d
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1413* about 130 new math functions were added to implement the ISO C9x math
1414 library.
1415
e61abf83 1416* the new header <complex.h> contains definitions of the complex math
cbdee279
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1417 functions from ISO C 9X.
1418
1419* the new header <tgmath.h> defines generic macros to use complex or
1420 real valued functions.
e61abf83 1421
a5a0310d 1422* Thorsten Kukuk provided an implementation for NIS+, securelevel 0, 1 and 2.
e61abf83 1423
a5a0310d
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1424* Andreas Jaeger provided a test suite for the math library.
1425
1426* Mark Kettenis implemented the utmpx interface and an utmp daemon.
cbdee279 1427
440d13e2 1428* Ulrich Drepper added character set conversion functions (iconv).
cbdee279
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1429
1430* Optimized string functions have been added.
1431
1432* The localedata addon is now part of glibc.
2eb45444
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1433
1434* An implementation of profiling shared libraries was added by Ulrich Drepper.
ea278354 1435
48244d09
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1436* Thorsten Kukuk and Ulrich Drepper provided an implementation for a caching
1437 daemon for NSS (nscd).
1438
1439 Missing a better place here are some numbers on improvements. Under
1440 Linux 2.1.125 un-tar-ing the kernel sources takes
1441
0dee6738 1442 user system wall
48244d09 1443
0dee6738 1444 using local files 12.19s 6.88s 22.91s
48244d09 1445
0dee6738 1446 using NIS 13.92s 8.91s 26.34s
48244d09 1447
0dee6738 1448 using NIS & nscd 10.37s 7.34s 25.30s
48244d09 1449
0dee6738
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1450 using NIS+ 27.57s 30.37s 640.46s
1451
1452 using NIS+ & nscd 10.25s 7.83s 26.51s
1453
1454 using NIS & old nscd [1] 13.83s 8.32s 29.60s
48244d09 1455
48244d09
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1456 Keep in mind that non-namelookup related operations dominate above times.
1457 It was just a common complain that using NIS+ unpacking the kernel is
0dee6738 1458 horribly slow.
48244d09 1459
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1460 [1] The old nscd implementation is not available anymore since it was
1461 distributed with glibc up to version 2.0.98 and thus is now replaced.
ea278354
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1462
1463* Tim Waugh provided an implementation of the POSIX.2 wordexp function family.
48869012
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1464
1465* Mark Kettenis provided a Hesiod NSS module.
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1466
1467* The ELF dynamic loader knows how to process dynamic string tokens ($ORIGIN
1468 and $PLATFORM) in RPATHs and similar strings (Ulrich Drepper).
1469
1470* rcmd can now handle netgroups (Dick Streefland).
48244d09 1471
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1472* A port to the ARM was contributed by Phil Blundell, Pat Beirne and Scott
1473 Bambrough.
1474
1475* Support for the IPv6 protocol has been added to the socket API, as per the
1476 latest draft standards.
1477
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1478* Support for Linux 2.2 has been added.
1479
48244d09
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1480* Interface changes relative to the latest 2.0.x release:
1481~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
62595351 1482addseverity NEW: Unix98
48244d09 1483alphasort64 NEW: LFS
62595351
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1484argp_err_exit_status NEW: argp, GNU ext
1485argp_error NEW: argp, GNU ext
1486argp_failure NEW: argp, GNU ext
1487argp_help NEW: argp, GNU ext
1488argp_parse NEW: argp, GNU ext
1489argp_program_bug_address NEW: argp, GNU ext
1490argp_program_version NEW: argp, GNU ext
1491argp_program_version_hook NEW: argp, GNU ext
1492argp_state_help NEW: argp, GNU ext
1493argp_usage NEW: argp, GNU ext
e980ca92
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1494authdes_create NEW: Secure RPC
1495authdes_getucred NEW: Secure RPC
1496authdes_pk_create NEW: Secure RPC
48244d09
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1497backtrace NEW: GNU ext.
1498backtrace_symbols NEW: GNU ext.
1499backtrace_symbols_fd NEW: GNU ext.
1500cacos NEW: ISO C 9x
1501cacosf NEW: ISO C 9x
1502cacosh NEW: ISO C 9x
1503cacoshf NEW: ISO C 9x
1504cacoshl NEW: ISO C 9x
1505cacosl NEW: ISO C 9x
1506capget NEW: kernel
1507capset NEW: kernel
1508carg NEW: ISO C 9x
1509cargf NEW: ISO C 9x
1510cargl NEW: ISO C 9x
1511casin NEW: ISO C 9x
1512casinf NEW: ISO C 9x
1513casinh NEW: ISO C 9x
1514casinhf NEW: ISO C 9x
1515casinhl NEW: ISO C 9x
1516casinl NEW: ISO C 9x
1517catan NEW: ISO C 9x
1518catanf NEW: ISO C 9x
1519catanh NEW: ISO C 9x
1520catanhf NEW: ISO C 9x
1521catanhl NEW: ISO C 9x
1522catanl NEW: ISO C 9x
e980ca92 1523cbc_crypt NEW: Secure RPC
48244d09
UD
1524ccos NEW: ISO C 9x
1525ccosf NEW: ISO C 9x
1526ccosh NEW: ISO C 9x
1527ccoshf NEW: ISO C 9x
1528ccoshl NEW: ISO C 9x
1529ccosl NEW: ISO C 9x
1530cexp NEW: ISO C 9x
1531cexpf NEW: ISO C 9x
1532cexpl NEW: ISO C 9x
1533cimag NEW: ISO C 9x
1534cimagf NEW: ISO C 9x
1535cimagl NEW: ISO C 9x
1536clearerr_locked REMOVED
1537clntunix_create NEW: sunrpc ext
1538clog NEW: ISO C 9x
1539clog10 NEW: ISO C 9x
1540clog10f NEW: ISO C 9x
1541clog10l NEW: ISO C 9x
1542clogf NEW: ISO C 9x
1543clogl NEW: ISO C 9x
1544conj NEW: ISO C 9x
1545conjf NEW: ISO C 9x
1546conjl NEW: ISO C 9x
1547cpow NEW: ISO C 9x
1548cpowf NEW: ISO C 9x
1549cpowl NEW: ISO C 9x
1550cproj NEW: ISO C 9x
1551cprojf NEW: ISO C 9x
1552cprojl NEW: ISO C 9x
1553creal NEW: ISO C 9x
1554crealf NEW: ISO C 9x
1555creall NEW: ISO C 9x
1556creat64 NEW: LFS
1557csin NEW: ISO C 9x
1558csinf NEW: ISO C 9x
1559csinh NEW: ISO C 9x
1560csinhf NEW: ISO C 9x
1561csinhl NEW: ISO C 9x
1562csinl NEW: ISO C 9x
1563csqrt NEW: ISO C 9x
1564csqrtf NEW: ISO C 9x
1565csqrtl NEW: ISO C 9x
1566ctan NEW: ISO C 9x
1567ctanf NEW: ISO C 9x
1568ctanh NEW: ISO C 9x
1569ctanhf NEW: ISO C 9x
1570ctanhl NEW: ISO C 9x
1571ctanl NEW: ISO C 9x
e980ca92
UD
1572des_setparity NEW: Secure RPC
1573ecb_crypt NEW: Secure RPC
62595351 1574endutxent NEW: Unix98
48244d09
UD
1575exp10 NEW: ISO C 9x
1576exp10f NEW: ISO C 9x
1577exp10l NEW: ISO C 9x
1578exp2 NEW: ISO C 9x
1579exp2f NEW: ISO C 9x
1580exp2l NEW: ISO C 9x
1581fattach NEW: STREAMS
1582fdetach NEW: STREAMS
1583fdim NEW: ISO C 9x
1584fdimf NEW: ISO C 9x
1585fdiml NEW: ISO C 9x
1586feclearexcept NEW: ISO C 9x
1587fegetenv NEW: ISO C 9x
1588fegetexceptflag NEW: ISO C 9x
1589fegetround NEW: ISO C 9x
1590feholdexcept NEW: ISO C 9x
1591feof_locked REMOVED
1592feraiseexcept NEW: ISO C 9x
1593ferror_locked REMOVED
1594fesetenv NEW: ISO C 9x
1595fesetexceptflag NEW: ISO C 9x
1596fesetround NEW: ISO C 9x
1597fetestexcept NEW: ISO C 9x
1598feupdateenv NEW: ISO C 9x
1599fflush_locked REMOVED
1600ffsl NEW: GNU ext.
1601ffsll NEW: GNU ext.
1602fgetpos64 NEW: LFS
1603fgets_unlocked NEW: GNU ext.
1604fileno_locked REMOVED
1605fma NEW: ISO C 9x
1606fmaf NEW: ISO C 9x
1607fmal NEW: ISO C 9x
1608fmax NEW: ISO C 9x
1609fmaxf NEW: ISO C 9x
1610fmaxl NEW: ISO C 9x
1611fmin NEW: ISO C 9x
1612fminf NEW: ISO C 9x
1613fminl NEW: ISO C 9x
62595351 1614fmtmsg NEW: Unix98
48244d09
UD
1615fopen64 NEW: LFS
1616fputc_locked REMOVED
1617fputs_unlocked NEW: GNU ext.
1618fread_unlocked NEW: GNU ext.
1619freopen64 NEW: LFS
1620fseeko NEW: Unix98
1621fsetpos64 NEW: LFS
1622fstatfs64 NEW: LFS
1623fstatvfs NEW: Unix98
1624fstatvfs64 NEW: LFS
1625ftello NEW: Unix98
1626ftello64 NEW: LFS
1627ftruncate64 NEW: LFS
1628ftw64 NEW: LFS
1629fwrite_unlocked NEW: GNU ext.
1630gai_strerror NEW: IPv6
1631gamma_r REMOVED
1632gammaf_r REMOVED
1633gammal_r REMOVED
1634getchar_locked REMOVED
1635getdate NEW: Unix98
1636getdate_err NEW: Unix98
1637getdate_r NEW: GNU ext.
1638getmsg NEW: STREAMS
1639getnameinfo NEW: IPv6
e980ca92 1640getnetname NEW: Secure RPC
48244d09
UD
1641getpmsg NEW: STREAMS
1642getpt NEW: Unix98 PTY
1643getrlimit64 NEW: LFS
62595351
UD
1644getutxent NEW: Unix98
1645getutxid NEW: Unix98
1646getutxline NEW: Unix98
48244d09
UD
1647glob64 NEW: GNU ext.
1648globfree64 NEW: GNU ext.
1649gnu_get_libc_release NEW: GNU ext.
1650gnu_get_libc_version NEW: GNU ext.
1651grantpt NEW: Unix98 PTY
e980ca92 1652host2netname NEW: Secure RPC
48244d09
UD
1653iconv NEW: iconv
1654iconv_close NEW: iconv
1655iconv_open NEW: iconv
1656if_freenameindex NEW: IPv6
1657if_indextoname NEW: IPv6
1658if_nameindex NEW: IPv6
1659if_nametoindex NEW: IPv6
1660in6addr_any NEW: IPv6
1661in6addr_loopback NEW: IPv6
1662inet6_isipv4mapped NEW: IPv6
1663isastream NEW: STREAMS
1664iswblank NEW: GNU ext.
e980ca92
UD
1665key_decryptsession NEW: Secure RPC
1666key_decryptsession_pk NEW: Secure RPC
1667key_encryptsession NEW: Secure RPC
1668key_encryptsession_pk NEW: Secure RPC
1669key_gendes NEW: Secure RPC
1670key_get_conv NEW: Secure RPC
1671key_secretkey_is_set NEW: Secure RPC
1672key_setnet NEW: Secure RPC
1673key_setsecret NEW: Secure RPC
48244d09
UD
1674llrint NEW: ISO C 9x
1675llrintf NEW: ISO C 9x
1676llrintl NEW: ISO C 9x
1677llround NEW: ISO C 9x
1678llroundf NEW: ISO C 9x
1679llroundl NEW: ISO C 9x
1680log2 NEW: ISO C 9x
1681log2f NEW: ISO C 9x
1682log2l NEW: ISO C 9x
1683lrint NEW: ISO C 9x
1684lrintf NEW: ISO C 9x
1685lrintl NEW: ISO C 9x
1686lround NEW: ISO C 9x
1687lroundf NEW: ISO C 9x
1688lroundl NEW: ISO C 9x
1689lseek64 NEW: LFS
1690makecontext NEW: Unix98
1691mempcpy NEW: GNU ext.
1692mmap64 NEW: LFS
1693moncontrol REMOVED
1694modify_ldt NEW: kernel
1695nan NEW: ISO C 9x
1696nanf NEW: ISO C 9x
1697nanl NEW: ISO C 9x
1698nearbyint NEW: ISO C 9x
1699nearbyintf NEW: ISO C 9x
1700nearbyintl NEW: ISO C 9x
e980ca92
UD
1701netname2host NEW: Secure RPC
1702netname2user NEW: Secure RPC
42bd0a85
UD
1703nexttoward NEW: ISO C 9x
1704nexttowardf NEW: ISO C 9x
1705nexttowardl NEW: ISO C 9x
48244d09
UD
1706nftw NEW: Unix98
1707nftw64 NEW: LFS
1708open64 NEW: LFS
e980ca92 1709passwd2des NEW: Secure RPC
48244d09
UD
1710pow10 NEW: GNU ext.
1711pow10f NEW: GNU ext.
1712pow10l NEW: GNU ext.
1713pread NEW: Unix98
1714pread64 NEW: LFS
1715printf_size NEW: GNU ext.
1716printf_size_info NEW: GNU ext.
1717profil_counter REMOVED
1718pthread_mutexattr_getkind_np REPLACED
1719pthread_mutexattr_setkind_np REPLACED
1720ptsname NEW: Unix98 PTY
1721ptsname_r NEW: Unix98 PTY
1722putc_locked REMOVED
1723putchar_locked REMOVED
1724putgrent NEW: GNU ext.
1725putmsg NEW: STREAMS
1726putpmsg NEW: STREAMS
62595351 1727pututxline NEW: Unix98
48244d09
UD
1728pwrite NEW: Unix98
1729pwrite64 NEW: LFS
1730readdir64 NEW: LFS
1731readdir64_r NEW: LFS
1732remquo NEW: ISO C 9x
1733remquof NEW: ISO C 9x
1734remquol NEW: ISO C 9x
1735round NEW: ISO C 9x
1736roundf NEW: ISO C 9x
1737roundl NEW: ISO C 9x
1738rtime NEW: GNU ext.
1739scalbln NEW: ISO C 9x
1740scalblnf NEW: ISO C 9x
1741scalblnl NEW: ISO C 9x
1742scandir64 NEW: LFS
1743sendfile NEW: kernel
1744setcontext NEW: Unix98
1745setrlimit64 NEW: LFS
62595351 1746setutxent NEW: Unix98
48244d09
UD
1747sighold NEW: Unix98
1748sigignore NEW: Unix98
1749sigqueue NEW: POSIX.1b
1750sigrelse NEW: Unix98
1751sigset NEW: POSIX.1b
1752sigtimedwait NEW: POSIX.1b
1753sigwaitinfo NEW: POSIX.1b
1754sincos NEW: GNU ext.
1755sincosf NEW: GNU ext.
1756sincosl NEW: GNU ext.
1757statfs64 NEW: LFS
1758statvfs NEW: Unix98
1759statvfs64 NEW: LFS
1760strcasestr NEW: GNU ext.
48244d09
UD
1761strtoimax NEW: ISO C 9x
1762strtoumax NEW: ISO C 9x
1763strverscmp NEW: GNU ext.
e980ca92 1764svcauthdes_stats NEW: Secure RPC
48244d09
UD
1765svcunix_create NEW: sunrpc etx
1766svcunixfd_create NEW: sunrpc ext
1767swapcontext NEW: Unix98
1768tcgetsid NEW: Unix98 PTY
1769tdestroy NEW: GNU ext.
1770tgamma NEW: ISO C 9x
1771tgammaf NEW: ISO C 9x
1772tgammal NEW: ISO C 9x
1773tmpfile64 NEW: LFS
1774trunc NEW: ISO C 9x
1775truncate64 NEW: LFS
1776truncf NEW: ISO C 9x
1777truncl NEW: ISO C 9x
1778umount2 NEW: kernel
1779unlockpt NEW: Unix98 PTY
62595351 1780updwtmpx NEW: Unix98
e980ca92 1781user2netname NEW: Secure RPC
62595351 1782utmpxname NEW: Unix98
48244d09 1783versionsort NEW: GNU ext.
3ef4002b 1784versionsort64 NEW: GNU ext.
48244d09
UD
1785waitid NEW: Unix98
1786wcscasecmp NEW: GNU ext.
1787wcsncasecmp NEW: GNU ext.
1788wcsnlen NEW: GNU ext.
1789wcstoimax NEW: ISO C 9x
1790wcstoll NEW: ISO C 9x
1791wcstoull NEW: ISO C 9x
1792wcstoumax NEW: ISO C 9x
1793wcswcs NEW: Unix98
1794wordexp NEW: POSIX.2
1795wordfree NEW: POSIX.2
1796write_profiling REMOVED
e980ca92
UD
1797xdecrypt NEW: Secure RPC
1798xdr_authdes_cred NEW: Secure RPC
1799xdr_authdes_verf NEW: Secure RPC
1800xdr_cryptkeyarg NEW: Secure RPC
1801xdr_cryptkeyarg2 NEW: Secure RPC
1802xdr_cryptkeyres NEW: Secure RPC
1803xdr_getcredres NEW: Secure RPC
1804xdr_key_netstarg NEW: Secure RPC
1805xdr_key_netstres NEW: Secure RPC
1806xdr_keybuf NEW: Secure RPC
1807xdr_keystatus NEW: Secure RPC
1808xdr_netnamestr NEW: Secure RPC
1809xdr_sizeof NEW: Secure RPC
48244d09 1810xdr_unixcred NEW: sunrpc ext
e980ca92 1811xencrypt NEW: Secure RPC
48244d09 1812~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1770a20d
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1813\f
1814Version 2.0.6
1815
1816* more bug fixes
1817
a5a0310d
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1818\f
1819Version 2.0.5
1820
1821* more bug fixes
1822
1823* inet_ntoa is thread-safe
1824
1825* updwtmp is moved from libutil to libc
1826
1827* rewrite of cbrt function
1828
1829* update of timezone data
1830\f
1831Version 2.0.4
1832
1833* more bug fixes
1834\f
1835Version 2.0.3
1836
1837* more bug fixes
c84142e8 1838\f
795fbc9a
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1839Version 2.0.2
1840
1841* more bug fixes
1842
1843* add atoll function
1844
1845* fix complex problems in Berkeley DB code
e61abf83
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1846
1847* fix math functions
795fbc9a
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1848\f
1849Version 2.0.1
1850
1851* fixed lots of header problems (especially Linux/GNU specific)
1852
1853* dynamic loader preserves all registers
1854
1855* Roland McGrath provided support for handling of auxiliary objects in
1856 the ELF dynamic loader.
1857
1858* support for parallel builds is improved
1859\f
40a4b79f 1860Version 2.0
28f540f4 1861
d3669add
RM
1862* GNU extensions are no longer declared by default. To enable them you
1863 must define the macro `_GNU_SOURCE' in your program or compile with
1864 `-D_GNU_SOURCE'.
1865
28f540f4
RM
1866* The library has changed from using GNU ld symbol aliases to using weak
1867 symbols where available. The ELF object file format supports weak
1868 symbols; GNU ld also supports weak symbols in the a.out format. (There
1869 is also now support for other GNU ld extensions in ELF. Use the
787126fe
RM
1870 `--with-elf' option to configure to indicate you have ELF, and
1871 `--with-gnu-ld' if using GNU ld.) This change resulted in the deletion
28f540f4
RM
1872 of many files which contained only symbol aliases, reducing the size of
1873 the source and the compiled library; many other files were renamed to
1874 less cryptic names previously occupied by the symbol alias files.
dcf0671d
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1875 There is a new header file <elf.h> for programs which operate on
1876 files in the ELF format.
49e522bf
RM
1877
1878* Converted to Autoconf version 2, so `configure' has more options.
1879 Run `configure --help' to see the details.
1880
1881* The library can now be configured to build profiling, highly-optimized
b25c5d66
RM
1882 (but undebuggable), and/or shared libraries (ELF with GNU ld only). The
1883 `--enable-profile', `--enable-omitfp', and `--enable-shared' options to
1884 `configure' enable building these extra libraries. The shared library is
1885 built by default when using both ELF and GNU ld. When shared libraries
1886 are enabled, the new library `-ldl' is available for arbitrary run-time
1887 loading of shared objects; its interface is defined in <dlfcn.h>. The
1888 new header file <link.h> gives access to the internals of the run-time
33a934a3
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1889 dynamic linker, `ld.so'. The shell script `ldd' is similar to the
1890 application of same name on other systems and it provides information
1891 about dynamically linked binaries.
49e522bf 1892
71733723
RM
1893* The C library now provides the run-time support code for profiling
1894 executables compiled with `-pg'. Programs can control the profiling code
d3669add
RM
1895 through the interface in <sys/gmon.h>. The `gmon.out' files written by
1896 the GNU C library can be read only by GNU `gprof' (from GNU binutils);
1897 the support for this file format was contributed by David Mosberger-Tang.
71733723 1898
f7eac6eb 1899* The math code has been replaced with a math library based on fdlibm from
33a934a3
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1900 Sun, and modified by JT Conklin and Ulrich Drepper with i387 support, by
1901 Ian Taylor with `float' functions and by Ulrich Drepper with `long double'
1902 functions. The math functions now reside in a separate library, so
1903 programs using them will need to use `-lm' their linking commands.
1904
1905* John C. Bowman contributed optimized ix87 assembler inline functions.
f7eac6eb 1906
5f0e6fc7
RM
1907* Ulrich Drepper has contributed support for an `/etc/nsswitch.conf'
1908 mechanism similar to that found in Solaris 2. This is now used for the
33a934a3
UD
1909 group, passwd, hosts, networks, services, protocols, rpc, ethers,
1910 shadow, netgroup, publickey, and alias databases. The `nsswitch.conf'
1911 file controls what services are used for each individual database. This
1912 works by loading shared libraries with names specified in `nsswitch.conf',
1913 so service modules can be changed or added at any time without even
1914 relinking any program. Currently there are the file, db, and NIS based
1915 NSS services available.
5f0e6fc7 1916
49e522bf
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1917* The new functions `strtoq' and `strtouq' parse integer values from
1918 strings, like `strtol' and `strtoul', but they return `long long int' and
1919 `unsigned long long int' values, respectively (64-bit quantities).
1920
1921* The new functions `strtof' and `strtold' parse floating-point values from
1922 strings, like `strtod', but they return `float' and `long double' values,
1923 respectively (on some machines `double' and `long double' are the same).
1924
1925* Ulrich Drepper has contributed new implementations of the floating-point
1926 printing and reading code used in the `printf' family of functions and
1927 `strtod', `strtof', and `strtold'. These new functions are perfectly
1928 accurate, and much faster than the old ones.
1929
33a934a3
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1930* The implementation of the POSIX locale model was completely rewritten by
1931 Ulrich Drepper. This includes the new programs `localedef' and `locale'
1932 to compile the POSIX locale definition.
1933
1934* The former dummy implementations of the strcoll and strxfrm function are
1935 now replaced by fully functional code contributed by Ulrich Drepper. The
1936 collation information comes from the POSIX locale definitions.
1937
49e522bf
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1938* The new header <langinfo.h> defines an interface for accessing
1939 various locale-dependent data (using the locale chosen with `setlocale').
1940
f7eac6eb 1941* Ulrich Drepper has contributed a new suite of functions for operation on
33a934a3 1942 wide-character and multibyte-character strings, in <wchar.h>;
b7407d63 1943 and classification and case conversion of wide characters, in <wctype.h>.
33a934a3
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1944 These new functions are conforming to the ISO C, Amendement 1 specification.
1945
1946* There is now a second implementation of the standard I/O library available.
1947 It comes from GNU libg++ as was written by Per Bothner, heavily modified
1948 by Hongjiu Lu and made thread safe by Ulrich Drepper.
f7eac6eb 1949
71733723 1950* You can now use positional parameter specifications in format strings
49e522bf
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1951 for the `printf' and `scanf' families of functions. For example,
1952 `printf ("Number %2$d, Mr %1$s\n", "Jones", 6);'' prints
1953 ``Number 6, Mr Jones''. This is mainly useful when providing different
d365fd2c
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1954 format strings for different languages, whose grammars may dictate
1955 different orderings of the values being printed. To support this
49e522bf 1956 feature, the interface for `register_printf_handler' has changed; see
d365fd2c 1957 the header file <printf.h> for details.
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1958
1959* The `printf' and `scanf' families of functions now understand a new
1960 formatting flag for numeric conversions: the ' flag (e.g. %'d or %'f) says
1961 to group numbers as indicated by the locale; for `scanf' and friends, this
1962 says to accept as valid only a number with all the proper grouping
1963 separators in the right places. In the default "C" locale, numbers are
1964 not grouped; but locales for specific countries will define the usual
1965 conventions (i.e. separate thousands with `,' in the US locale).
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1966
1967* The pgrp functions have been regularized, slightly incompatibly but much
1968 less confusingly. The core functions are now `getpgid' and `setpgid',
1969 which take arguments for the PID to operate on; the POSIX.1 `getpgrp' (no
1970 argument) and BSD `setpgrp' (identical to `setpgid') functions are
1971 provided for compatibility. There is no longer an incompatible `getpgrp'
1972 with an argument declared under _BSD_SOURCE; no BSD code uses it.
1973
1974* The new header file <fts.h> and suite of functions simplify programs that
1975 operate on directory trees. This code comes from 4.4 BSD.
1976
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1977* The resolver code has been updated from the BIND 4.9.5-P1 release.
1978 Parts of the code were heavily modified by Ulrich Drepper to fit in the
1979 NSS scheme used in glibc.
28f540f4 1980
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1981* There is a new malloc debugging hook `__memalign_hook'.
1982
1983* There are new typedefs `ushort' for `unsigned short int' and `uint' for
1984 `unsigned int' in <sys/types.h>. These are for compatibility only and
1985 their use is discouraged.
1986
1987* The `-lmcheck' library to enable standard malloc debugging hooks is now
1988 done differently, so that it works even without GNU ld.
787126fe 1989
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1990* New function `euidaccess' checks allowed access to a file like `access',
1991 but using the effective IDs instead of the real IDs.
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1992
1993* The time zone data files have been updated for the latest and greatest
1994 local time conventions of the countries of the world.
1995
1996* The new function `dirfd' extracts the file descriptor used by a DIR stream;
1997 see <dirent.h>.
1998
1999* The new functions `ecvt', `fcvt', and `gcvt' provide an obsolete interface
2000 for formatting floating-point numbers. They are provided only for
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2001 compatibility; new programs should use `sprintf' instead. There are
2002 also equivalent function for the `long double' floating-point type and
2003 all functions also exist in a reentrant form.
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2004
2005* The new auxiliary library `-lutil' from 4.4 BSD contains various
2006 functions for maintaining the login-record files (primarily of use to
2007 system programs such as `login'), and convenient functions for
2008 allocating and initializing a pseudo-terminal (pty) device.
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2009
2010* Ulrich Drepper has contributed new support for System V style
2011 shared memory and IPC on systems that support it.
2012
2013* Ulrich Drepper has contributed several miscellaneous new functions found
2014 in System V: The `hsearch' family of functions provide an effective
2015 implementation of hash tables; `a64l' and `l64a' provide a very simple
2016 binary to ASCII mapping; `drand48' and friends provide a 48-bit random
2017 number generator.
2018
2019* Ulrich Drepper has contributed new reentrant counterparts for the
2020 `random' and `hsearch' families of functions; `random_r', `hsearch_r', etc.
2021
2022* Ulrich Drepper has contributed new, highly-optimized versions of several
2023 string functions for the i486/Pentium family of processors.
2024
71733723 2025* Ulrich Drepper has updated the Linux-specific code, based largely
c709e372 2026 on work done in Hongjiu Lu's version of GNU libc for Linux.
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2027 The GNU library now supports Linux versions 2.0.10 and later,
2028 using the ELF object file format (i[3456]86-*-linux).
c709e372 2029
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2030* Andreas Schwab has ported the C library to Linux/m68k (m68k-*-linux).
2031
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2032* David Mosberger-Tang and Richard Henderson have ported the C library
2033 to Linux/Alpha (alpha-*-linux). Richard Henderson contributed the
2034 dynamic linking support for ELF/Alpha.
2035
2036* Richard Henderson contributed several Alpha optimized assembler function
2037 for arithmetic and string handling.
d3669add 2038
c709e372 2039* Ulrich Drepper has contributed a new set of message catalog functions to
40a4b79f
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2040 support multiple languages using the <libintl.h> interface, for use with
2041 his new package GNU gettext. Translation volunteers have contributed
2042 catalogs of the library's messages in Spanish, German, and Korean.
2043
2044* For compatibility with XPG4, Ulrich Drepper has contributed the `gencat'
2045 program and the `catgets' function for reading the catalog files it
2046 creates. (The <libintl.h> interface is preferred; we include the
2047 <nl_types.h> interface using `catgets' only for source compatibility with
2048 programs already written to use it.)
71733723
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2049
2050* New header file <values.h> gives SVID-compatible names for <limits.h>
2051 constants.
2052
2053* Various new macros, declarations, and small header files for compatibility
2054 with 4.4 BSD.
2055
2056* New function `group_member' is a convenient way to check if a process has
2057 a given effective group ID.
2058
2059* When using GCC 2.7 and later, the socket functions are now declared in a
2060 special way so that passing an argument of type `struct sockaddr_in *',
2061 `struct sockaddr_ns *', or `struct sockaddr_un *' instead of the generic
2062 `struct sockaddr *' type, does not generate a type-clash warning.
2063
2064* New function `error' declared in header file <error.h> is a convenient
6d52618b 2065 function for printing error messages and optionally exiting; this is the
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2066 canonical function used in GNU programs. The new functions `err', `warn',
2067 and friends in header file <err.h> are the canonical 4.4 BSD interface for
2068 doing the same thing.
2069
2070* The <glob.h> interface has several new flags from 4.4 BSD that extend the
2071 POSIX.2 `glob' function to do ~ and {...} expansion.
2072
2073* New function `unsetenv' complements `setenv' for compatibility with 4.4 BSD.
33a934a3 2074 `clearenv' which is used in POSIX.9 is also available.
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2075
2076* New function `getsid' returns session ID number on systems that support it.
2077
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2078* We have incorporated the 4.4 BSD `db' library (version 1.85). New header
2079 files <db.h> and <mpool.h> provide a rich set of functions for several
2080 types of simple databases stored in memory and in files, and <ndbm.h> is
6d52618b 2081 an old `ndbm'-compatible interface using the `db' functions. Link with
999493cb 2082 `-ldb' to get these functions.
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2083
2084* New macro `strdupa' copies a string like `strdup', but uses local stack
2085 space from `alloca' instead of dynamic heap space from `malloc'.
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2086
2087* New function `strnlen' is like `strlen' but searches only a given maximum
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2088 number of characters for the null terminator. `stpncpy', `strndup' and
2089 `strndupa' are similar variants for the `stpcpy', `strdup' and `strdupa'
2090 function.
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2091
2092* New function `statfs' in header <sys/statfs.h>.
2093
2094* The new <argz.h> and <envz.h> interfaces contributed by Miles Bader
2095 provide convenient functions for operating on blocks of null-terminated
2096 strings.
2097
2098* A new suite of functions in <utmp.h> handle all the details of reading
2099 and writing the utmp file.
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2100
2101* An implementation of the NIS/YP(tm) based NSS service was contributed by
2102 Thorsten Kukuk.
2103
2104* Paul Eggert and Ulrich Drepper modified the `strftime' function to be
2105 completely POSIX compliant and also implemented the extended functionality
2106 to handle alternate digit representation and alternate era date formats.
2107
2108* Ulrich Drepper provided an implementation of the `strptime' function
2109 defined in XPG4.2 which transforms a string into a `struct tm' value.
2110
2111* Paul Eggert provided the tzselect shell script as part of the timezone
2112 code. The shell script makes it easy to select the correct timezone
2113 specification.
2114
2115* The implementation of the malloc family of functions is completely replaced
2116 by a new implementation by Doug Lea with many improvements by Wolfram Gloger.
2117 The implementation uses the mmap function (if available) and it is
2118 optimized for the use in multi threaded programs.
2119
2120* Ulrich Drepper contributed a MD5 "encryption" for the crypt family of
2121 functions. This new functionality is usable by specifying a special
2122 salt string and it is compatible with implementation on *BSD systems.
2123
2124* Lots of functions from the XPG4.2 standard were added by Ulrich Drepper:
2125 `getsubopt' to handle second level command line options, `bsd_signal'
2126 to access BSD style `signal' functionality, the obsolete `regexp' style
2127 expression matcher.
2128
2129* the `lchown' function is available on system which support this
2130 functionality.
2131
2132* The implementation of the shadow password handling function was contributed
2133 by Ulrich Drepper.
2134
2135* David Mosberger-Tang changed the SunRPC implementation to be 64bit safe.
2136
2137* POSIX.1g support was added. The <sys/select.h> header is available,
2138 `isfdtype' and `pselect' are implemented. Craig Metz contributed an
2139 implementation of `getaddrinfo'.
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2140\f
2141Version 1.09
2142
2143* For cross-compilation you should now set `BUILD_CC' instead of `HOST_CC'.
2144
2145* New header file <fstab.h> and new functions `getfsspec', `getfsent' and
2146 friends, for parsing /etc/fstab. This code comes from 4.4 BSD.
2147
2148* The new function `daemon' from 4.4 BSD is useful for server programs that
2149 want to put themselves in the background.
2150
2151* Joel Sherrill has contributed support for several standalone boards that
2152 run without an operating system.
2153
2154* `printf', `scanf' and friends now accept a `q' type modifier for long
2155 long int as well as `ll'. Formats using these might be `%qu' or `%lld'.
2156
2157* All of the code taken from BSD (notably most of the math and networking
2158 routines) has been updated from the BSD 4.4-Lite release.
2159
2160* The resolver code has been updated from the BIND-4.9.3-BETA9 release.
2161
2162* The new functions `getdomainname' and `setdomainname' fetch or change the
2163 YP/NIS domain name. These are system calls which exist on systems which
2164 have YP (aka NIS).
2165
2166* The time zone data files have been updated for the latest international
2167 conventions.
2168
2169* The SunRPC programs `portmap' and `rpcinfo' are now installed in
2170 $(sbindir) (usually /usr/local/sbin) instead of $(bindir).
2171\f
2172Version 1.08
2173
2174* The C library now includes support for Sun RPC, from Sun's free
2175 RPCSRC-4.0 distribution. The `portmap', `rpcinfo', and `rpcgen' programs
2176 are included. (There is still no support for YP.)
2177
2178* Tom Quinn has contributed a port of the C library to SGI machines running
2179 Irix 4 (mips-sgi-irix4).
2180
2181* The new `lockf' function is a simplified interface to the locking
2182 facilities of `fcntl', included for compatibility.
2183
2184* New time functions `timegm', `timelocal', and `dysize' for compatibility.
2185
2186* New header file <sys/timeb.h> and new function `ftime' for compatibility.
2187
2188* New header files <poll.h> and <sys/poll.h> and new function `poll' for
2189 compatibility.
2190
2191* The error message printed by `assert' for a failed assertion now includes
2192 the name of the program (if using GNU ld) and the name of the calling
2193 function (with versions of GCC that support this).
2194
2195* The `psignal' function is now declared in <signal.h>, not <stdio.h>.
2196
2197* The library now includes the <sys/mman.h> header file and memory
2198 management functions `mmap', `munmap', `mprotect', `msync', and
2199 `madvise', on systems that support those facilities.
2200
2201* The interface for `mcheck' has changed slightly: the function called to
2202 abort the program when an allocation inconsistency is detected now takes
2203 an argument that indicates the type of failure. The new function
2204 `mprobe' lets you request a consistency check for a particular block at
2205 any time (checks are normally done only when you call `free' or `realloc'
2206 on a block).
2207
2208* It is now possible to easily cross-compile the C library, building on one
2209 system a library to run on another machine and/or operating system. All
2210 you need to do is set the variable `HOST_CC' in `configparms' to the
2211 native compiler for programs to run on the machine you are building on (a
2212 few generator programs are used on Unix systems); set `CC' to the
2213 cross-compiler.
2214
2215* The new function `fexecve' (only implemented on the GNU system) executes
2216 a program file given a file descriptor already open on the file.
2217\f
2218Version 1.07
2219
2220* Brendan Kehoe has contributed most of a port to the DEC Alpha
2221 running OSF/1 (alpha-dec-osf1). He says it is 75% complete.
2222
2223* You can set the variable `libprefix' in `configparms' to specify a prefix
2224 to be prepended to installed library files; this makes it easy to install
2225 the GNU C library to be linked as `-lgnuc' or whatever.
2226
2227* The new `stpncpy' is a cross between `stpcpy' and `strncpy': It
2228 copies a limited number of characters from a string, and returns the
2229 address of the last character written.
2230
2231* You no longer need to check for whether the installed `stddef.h' is
2232 compatible with the GNU C library. configure now checks for you.
2233
2234* You can now define a per-stream `fileno' function to convert the
2235 stream's cookie into an integral file descriptor.
2236
2237* ``malloc (0)'' no longer returns a null pointer. Instead, it
2238 allocates zero bytes of storage, and returns a unique pointer which
2239 you can pass to `realloc' or `free'. The behavior is undefined if
2240 you dereference this pointer.
2241
2242* The C library now runs on Sony NEWS m68k machines running either
2243 NewsOS 3 or NewsOS 4.
2244
2245* The new `syscall' function is a system-dependent primitive function
2246 for invoking system calls. It has the canonical behavior on Unix
2247 systems, including unreliable return values for some calls (such as
2248 `pipe', `fork' and `getppid').
2249
2250* The error code `EWOULDBLOCK' is now obsolete; it is always defined
2251 to `EAGAIN', which is the preferred name. On systems whose kernels
2252 use two distinct codes, the C library now translates EWOULDBLOCK to
2253 EAGAIN in every system call function.
2254\f
2255Version 1.06
2256
2257* The GNU C Library Reference Manual is now distributed with the library.
2258 `make dvi' will produce a DVI file of the printed manual.
2259 `make info' will produce Info files that you can read on line using C-h i
2260 in Emacs or the `info' program.
ea278354 2261 Please send comments on the manual to bug-glibc-manual@gnu.org.
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2262
2263* The library now supports SVR4 on i386s (i386-unknown-sysv4).
2264
2265* Brendan Kehoe has contributed a port to Sun SPARCs running Solaris 2.
2266
2267* Jason Merrill has contributed a port to the Sequent Symmetry running
2268 Dynix version 3 (i386-sequent-dynix).
2269
2270* The library has been ported to i386s running SCO 3.2.4 (also known as SCO
2271 ODT 2.0; i386-unknown-sco3.2.4) or SCO 3.2 (i386-unknown-sco3.2).
2272
2273* New function `memory_warnings' lets you arrange to get warnings when
2274 malloc is running out of memory to allocate, like Emacs gives you.
2275
2276* The C library now contains the relocating allocator used in Emacs 19 for
2277 its editing buffers. This allocator (ralloc) minimizes allocation
2278 overhead and fragmentation by moving allocated regions around whenever it
2279 needs to. You always refer to a ralloc'd region with a "handle" (a
2280 pointer to a pointer--an object of type `void **').
2281
2282* There is a new `printf' format: `%m' gives you the string corresponding
2283 to the error code in `errno'.
2284
2285* In `scanf' formats, you can now use `%as' or `%a[' to do the normal `%s'
2286 or `%[' conversion, but instead of filling in a fixed-sized buffer you
2287 pass, the `a' modifier says to fill in a `char **' you pass with a
2288 malloc'd string.
2289
2290* The `fnmatch' function supports the new flag bits `FNM_LEADING_DIR' and
2291 `FNM_CASEFOLD'. `FNM_LEADING_DIR' lets a pattern like `foo*' match a
2292 name like `foo/bar'. `FNM_CASEFOLD' says to ignore case in matching.
2293
2294* `mkstemp' is a traditional Unix function to atomically create and open a
2295 uniquely-named temporary file.
2296\f
2297Version 1.05
2298
2299* The standard location for the file that says what the local timezone is
2300 has changed again. It is now `/usr/local/etc/localtime' (or more
2301 precisely, `${prefix}/etc/localtime') rather than `/etc/localtime'.
2302
2303* The distribution no longer contains any files with names longer than 14
2304 characters.
2305
2306* `struct ttyent' has two new flag bits: TTY_TRUSTED and TTY_CONSOLE.
2307 These are set by the new `trusted' and `console' keywords in `/etc/ttys'.
2308
2309* New functions `ttyslot' and `syslog' from 4.4 BSD.
2310\f
2311Version 1.04
2312
2313* The configuration process has changed quite a bit. The `configure'
2314 script is now used just like the configuration scripts for other GNU
2315 packages. The `sysdeps' directory hierarchy is much rearranged.
2316 The file `INSTALL' explains the new scheme in detail.
2317
2318* The header files no longer need to be processed into ANSI C and
2319 traditional C versions. There is just one set of files to install, and
2320 it will work with ANSI or old C compilers (including `gcc -traditional').
2321
2322* Brendan Kehoe and Ian Lance Taylor have ported the library to the
2323 MIPS DECStation running Ultrix 4.
2324
2325* The Sun 4 startup code (crt0) can now properly load SunOS 4 shared libraries.
2326 Tom Quinn contributed the initial code. The GNU C library can NOT yet be
2327 made itself into a shared library.
2328
2329* Yet further improved support for the i386, running 4.3 BSD-like systems
2330 (such as Mach 3 with the Unix single-server), or System V.
2331
2332* New function `strncasecmp' to do case-insensitive string comparison
2333 with limited length.
2334
2335* New function `strsep' is a reentrant alternative to `strtok'.
2336
2337* New functions `scandir' and `alphasort' for searching directories.
2338
2339* New function `setenv' is a better interface to `putenv'.
2340
2341* Ian Lance Taylor has contributed an implementation of the SVID `ftw'
2342 function for traversing a directory tree.
2343
2344* The GNU obstack package is now also part of the C library.
2345 The new function `open_obstack_stream' creates a stdio stream that
2346 writes onto an obstack; `obstack_printf' and `obstack_vprintf' do
2347 formatted output directly to an obstack.
2348
2349* Miscellaneous new functions: reboot, nice, sigaltstack (4.4 BSD only),
2350 cfmakeraw, getusershell, getpass, swab, getttyent, seteuid, setegid.
2351
2352* `FNM_FILE_NAME' is another name for `FNM_PATHNAME', used with `fnmatch'.
2353
2354* The new functions `strfry' and `memfrob' do mysterious and wonderful
2355 things to your strings.
2356
2357* There are some new test programs: test-fseek, testmb, and testrand.
2358
2359* Some work has been done to begin porting the library to 4.4 BSD and Linux.
2360 These ports are not finished, but are a good starting place for really
2361 supporting those systems.
2362
2363* `/etc/localtime' is now the standard location for the file that says what
2364 the local timezone is, rather than `/usr/local/lib/zoneinfo/localtime'.
2365 This follows the general principle that `/etc' is the place for all local
2366 configuration files.
2367
2368* The C library header files now use `extern "C"' when used by the C++
2369 compiler, so the C library should now work with C++ code.
2370
2371* The header file <bstring.h> is gone. <string.h> now declares bcopy,
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2372 bcmp, bzero, and ffs. (Update: nowadays these functions are declared
2373 in <strings.h>.)
28f540f4
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2374
2375* Mike Haertel (of GNU e?grep and malloc fame) has written a new sorting
2376 function which uses the `merge sort' algorithm, and is said to be
2377 significantly faster than the old GNU `qsort' function. Merge sort is
2378 now the standard `qsort' function. The new algorithm can require a lot
2379 of temporary storage; so, the old sorting function is called when the
2380 required storage is not available.
2381
2382* The C library now includes Michael Glad's Ultra Fast Crypt, which
2383 provides the Unix `crypt' function, plus some other entry points.
28f540f4
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2384
2385* The code and header files taken from 4.4 BSD have been updated with the
2386 latest files released from Berkeley.
2387\f
2388----------------------------------------------------------------------
2389Copyright information:
2390
88726d48 2391Copyright (C) 1992-2014 Free Software Foundation, Inc.
28f540f4
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2392
2393 Permission is granted to anyone to make or distribute verbatim copies
2394 of this document as received, in any medium, provided that the
2395 copyright notice and this permission notice are preserved,
2396 thus giving the recipient permission to redistribute in turn.
2397
2398 Permission is granted to distribute modified versions
2399 of this document, or of portions of it,
2400 under the above conditions, provided also that they
2401 carry prominent notices stating who last changed them.
2402\f
2403Local variables:
2404version-control: never
1086d70d 2405fill-column: 76
557a9213 2406End: