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ee9247c3 | 1 | GNU C Library NEWS -- history of user-visible changes. |
f7a9f785 | 2 | Copyright (C) 1992-2016 Free Software Foundation, Inc. |
28f540f4 RM |
3 | See the end for copying conditions. |
4 | ||
d9814526 | 5 | Please send GNU C library bug reports via <http://sourceware.org/bugzilla/> |
69be6aaf | 6 | using `glibc' in the "product" field. |
d5b396c1 | 7 | \f |
aeb47bbc DM |
8 | Version 2.23 |
9 | ||
23256f5e MF |
10 | * Unicode 8.0.0 Support: Character encoding, character type info, and |
11 | transliteration tables are all updated to Unicode 8.0.0, using new | |
12 | and/or improved generator scripts contributed by Mike FABIAN (Red Hat). | |
13 | These updates cause user visible changes, such as the fixes for bugs | |
14 | 89, 16061, and 18568. | |
15 | ||
2359035a FW |
16 | * sched_setaffinity, pthread_setaffinity_np no longer attempt to guess the |
17 | kernel-internal CPU set size. This means that requests that change the | |
18 | CPU affinity which failed before (for example, an all-ones CPU mask) will | |
19 | now succeed. Applications that need to determine the effective CPU | |
20 | affinities need to call sched_getaffinity or pthread_getaffinity_np after | |
21 | setting it because the kernel can adjust it (and the previous size check | |
22 | would not detect this in the majority of cases). | |
23 | ||
8b7b7f75 MW |
24 | * The fts.h header can now be used with -D_FILE_OFFSET_BITS=64. With LFS |
25 | the following new symbols are used: fts64_children, fts64_close, | |
26 | fts64_open, fts64_read and fts64_set. | |
27 | ||
2eecc8af FW |
28 | * getaddrinfo now detects certain invalid responses on an internal netlink |
29 | socket. If such responses are received, an affected process will | |
30 | terminate with an error message of "Unexpected error <number> on netlink | |
31 | descriptor <number>" or "Unexpected netlink response of size <number> on | |
32 | descriptor <number>". The most likely cause for these errors is a | |
33 | multi-threaded application which erroneously closes and reuses the netlink | |
34 | file descriptor while it is used by getaddrinfo. | |
35 | ||
a62719ba FW |
36 | * A defect in the malloc implementation, present since glibc 2.15 (2012) or |
37 | glibc 2.10 via --enable-experimental-malloc (2009), could result in the | |
38 | unnecessary serialization of memory allocation requests across threads. | |
39 | The defect is now corrected. Users should see a substantial increase in | |
40 | the concurent throughput of allocation requests for applications which | |
41 | trigger this bug. Affected applications typically create create and | |
42 | destroy threads frequently. (Bug 19048 was reported and analyzed by | |
43 | Ericsson.) | |
a014cecd | 44 | |
bc148ca1 MF |
45 | * There is now a --disable-timezone-tools configure option for disabling the |
46 | building and installing of the timezone related utilities (zic, zdump, and | |
47 | tzselect). This is useful for people who build the timezone data and code | |
48 | independent of the GNU C Library. | |
49 | ||
a014cecd FW |
50 | * The LD_POINTER_GUARD environment variable can no longer be used to |
51 | disable the pointer guard feature. It is always enabled. | |
d5dff793 | 52 | |
1c70b6f1 ZW |
53 | * The obsolete header <regexp.h> has been removed. Programs that require |
54 | this header must be updated to use <regex.h> instead. | |
1efad39b | 55 | |
eed3e1eb JM |
56 | * The obsolete functions bdflush, create_module, get_kernel_syms, |
57 | query_module and uselib are no longer available to newly linked binaries; | |
58 | the header <sys/kdaemon.h> has been removed. These functions and header | |
59 | were specific to systems using the Linux kernel and could not usefully be | |
60 | used with the GNU C Library on systems with version 2.6 or later of the | |
61 | Linux kernel. | |
62 | ||
1efad39b SL |
63 | * Optimized string, wcsmbs and memory functions for IBM z13. |
64 | Implemented by Stefan Liebler. | |
b08b4218 | 65 | |
d709042a JM |
66 | * Newly linked programs that define a variable called signgam will no longer |
67 | have it set by the lgamma, lgammaf and lgammal functions. Programs that | |
68 | require signgam to be set by those functions must ensure that they use the | |
69 | variable provided by the GNU C Library and declared in <math.h>, without | |
70 | defining their own copy. | |
71 | ||
b08b4218 JM |
72 | * The minimum GCC version that can be used to build this version of the GNU |
73 | C Library is GCC 4.7. Older GCC versions, and non-GNU compilers, can | |
74 | still be used to compile programs using the GNU C Library. | |
f268ab5f | 75 | |
8f5e8b01 JM |
76 | Security related changes: |
77 | ||
78 | * The nan, nanf and nanl functions no longer have unbounded stack usage | |
79 | depending on the length of the string passed as an argument to the | |
80 | functions. Reported by Joseph Myers. | |
81 | ||
e9db92d3 CD |
82 | * A stack-based buffer overflow was found in libresolv when invoked from |
83 | libnss_dns, allowing specially crafted DNS responses to seize control | |
84 | of execution flow in the DNS client. The buffer overflow occurs in | |
85 | the functions send_dg (send datagram) and send_vc (send TCP) for the | |
86 | NSS module libnss_dns.so.2 when calling getaddrinfo with AF_UNSPEC | |
87 | family. The use of AF_UNSPEC triggers the low-level resolver code to | |
88 | send out two parallel queries for A and AAAA. A mismanagement of the | |
89 | buffers used for those queries could result in the response of a query | |
90 | writing beyond the alloca allocated buffer created by | |
91 | _nss_dns_gethostbyname4_r. Buffer management is simplified to remove | |
92 | the overflow. Thanks to the Google Security Team and Red Hat for | |
93 | reporting the security impact of this issue, and Robert Holiday of | |
94 | Ciena for reporting the related bug 18665. (CVE-2015-7547) | |
95 | ||
f268ab5f JM |
96 | * The following bugs are resolved with this release: |
97 | ||
98 | [The release manager will add the list generated by | |
99 | scripts/list-fixed-bugs.py just before the release.] | |
aeb47bbc | 100 | \f |
1c7a4a51 JM |
101 | Version 2.22 |
102 | ||
103 | * The following bugs are resolved with this release: | |
104 | ||
3df5cd98 | 105 | 438, 2981, 4719, 6544, 6792, 11216, 12836, 13028, 13064, 13151, 13152, |
0e569d30 MF |
106 | 14094, 14113, 14292, 14841, 14906, 14958, 15319, 15467, 15790, 15969, |
107 | 16159, 16339, 16350, 16351, 16352, 16353, 16361, 16512, 16526, 16538, | |
108 | 16559, 16560, 16704, 16783, 16850, 17053, 17090, 17195, 17269, 17293, | |
109 | 17322, 17403, 17475, 17523, 17542, 17569, 17581, 17588, 17596, 17620, | |
110 | 17621, 17628, 17631, 17692, 17711, 17715, 17776, 17779, 17792, 17833, | |
111 | 17836, 17841, 17912, 17916, 17930, 17932, 17944, 17949, 17964, 17965, | |
112 | 17967, 17969, 17977, 17978, 17987, 17991, 17996, 17998, 17999, 18007, | |
113 | 18019, 18020, 18029, 18030, 18032, 18034, 18036, 18038, 18039, 18042, | |
114 | 18043, 18046, 18047, 18049, 18068, 18078, 18080, 18093, 18100, 18104, | |
115 | 18110, 18111, 18116, 18125, 18128, 18134, 18138, 18185, 18196, 18197, | |
116 | 18206, 18210, 18211, 18217, 18219, 18220, 18221, 18234, 18244, 18245, | |
117 | 18247, 18287, 18319, 18324, 18333, 18346, 18371, 18383, 18397, 18400, | |
118 | 18409, 18410, 18412, 18418, 18422, 18434, 18444, 18457, 18468, 18469, | |
119 | 18470, 18479, 18483, 18495, 18496, 18497, 18498, 18502, 18507, 18508, | |
120 | 18512, 18513, 18519, 18520, 18522, 18527, 18528, 18529, 18530, 18532, | |
121 | 18533, 18534, 18536, 18539, 18540, 18542, 18544, 18545, 18546, 18547, | |
122 | 18549, 18553, 18557, 18558, 18569, 18583, 18585, 18586, 18592, 18593, | |
6fdd5d65 FW |
123 | 18594, 18602, 18612, 18613, 18619, 18633, 18635, 18641, 18643, 18648, |
124 | 18657, 18676, 18694, 18696, 18887. | |
2959eda9 | 125 | |
f7fba805 SL |
126 | * Cache information can be queried via sysconf() function on s390 e.g. with |
127 | _SC_LEVEL1_ICACHE_SIZE as argument. | |
128 | ||
2959eda9 AS |
129 | * A buffer overflow in gethostbyname_r and related functions performing DNS |
130 | requests has been fixed. If the NSS functions were called with a | |
131 | misaligned buffer, the buffer length change due to pointer alignment was | |
132 | not taken into account. This could result in application crashes or, | |
133 | potentially arbitrary code execution, using crafted, but syntactically | |
134 | valid DNS responses. (CVE-2015-1781) | |
4a4839c9 | 135 | |
42261ad7 FW |
136 | * The time zone file parser has been made more robust against crafted time |
137 | zone files, avoiding heap buffer overflows related to the processing of | |
138 | the tzh_ttisstdcnt and tzh_ttisgmtcnt fields, and a stack overflow due to | |
139 | large time zone data files. Overly long time zone specifiers in the TZ | |
140 | variable no longer result in stack overflows and crashes. | |
141 | ||
afcd9480 AM |
142 | * A powerpc and powerpc64 optimization for TLS, similar to TLS descriptors |
143 | for LD and GD on x86 and x86-64, has been implemented. You will need | |
144 | binutils-2.24 or later to enable this optimization. | |
145 | ||
4a4839c9 AO |
146 | * Character encoding and ctype tables were updated to Unicode 7.0.0, using |
147 | new generator scripts contributed by Pravin Satpute and Mike FABIAN (Red | |
148 | Hat). These updates cause user visible changes, such as the fix for bug | |
149 | 17998. | |
150 | ||
b13b96ca AS |
151 | * CVE-2014-8121 The NSS backends shared internal state between the getXXent |
152 | and getXXbyYY NSS calls for the same database, causing a denial-of-service | |
153 | condition in some applications. | |
21933112 AS |
154 | |
155 | * Added vector math library named libmvec with the following vectorized x86_64 | |
a6336cc4 AS |
156 | implementations: cos, cosf, sin, sinf, sincos, sincosf, log, logf, exp, expf, |
157 | pow, powf. | |
21933112 AS |
158 | The library can be disabled with --disable-mathvec. Use of the functions is |
159 | enabled with -fopenmp -ffast-math starting from -O1 for GCC version >= 4.9.0. | |
037e4b99 AS |
160 | Shared library libmvec.so is linked in as needed when using -lm (no need to |
161 | specify -lmvec explicitly for not static builds). | |
21933112 | 162 | Visit <https://sourceware.org/glibc/wiki/libmvec> for detailed information. |
fdb7d390 AZ |
163 | |
164 | * A new fmemopen implementation has been added with the goal of POSIX | |
165 | compliance. The new implementation fixes the following long-standing | |
166 | issues: BZ#6544, BZ#11216, BZ#12836, BZ#13151, BZ#13152, and BZ#14292. The | |
167 | old implementation is still present for use be by existing binaries. | |
7fde904c MF |
168 | |
169 | * The 32-bit sparc sigaction ABI was inadvertently broken in the 2.20 and 2.21 | |
170 | releases. It has been fixed to match 2.19 and older, but binaries built | |
171 | against 2.20 and 2.21 might need to be recompiled. See BZ#18694. | |
7493ab25 RM |
172 | |
173 | * Port to Native Client running on ARMv7-A (--host=arm-nacl). | |
174 | Contributed by Roland McGrath (Google). | |
2ec11c2b ZW |
175 | |
176 | * The header <regexp.h> is deprecated, and will be removed in a future | |
177 | release. Use of this header will trigger a deprecation warning. | |
178 | Application developers should update their code to use <regex.h> instead. | |
179 | ||
a03ba363 | 180 | This header was formerly part of SUS, but was deprecated in 1994 and |
2ec11c2b ZW |
181 | removed from the standard in 2001. Also, the glibc implementation |
182 | leaks memory. See BZ#18681 for more details. | |
1c7a4a51 | 183 | \f |
58b930ae SP |
184 | Version 2.21 |
185 | ||
186 | * The following bugs are resolved with this release: | |
187 | ||
042e1521 | 188 | 6652, 10672, 12674, 12847, 12926, 13862, 14132, 14138, 14171, 14498, |
5bd80bfe PP |
189 | 15215, 15378, 15884, 16009, 16418, 16191, 16469, 16576, 16617, 16618, |
190 | 16619, 16657, 16740, 16857, 17192, 17266, 17273, 17344, 17363, 17370, | |
191 | 17371, 17411, 17460, 17475, 17485, 17501, 17506, 17508, 17522, 17555, | |
192 | 17570, 17571, 17572, 17573, 17574, 17582, 17583, 17584, 17585, 17589, | |
193 | 17594, 17601, 17608, 17616, 17625, 17630, 17633, 17634, 17635, 17647, | |
194 | 17653, 17657, 17658, 17664, 17665, 17668, 17682, 17702, 17717, 17719, | |
195 | 17722, 17723, 17724, 17725, 17732, 17733, 17744, 17745, 17746, 17747, | |
196 | 17748, 17775, 17777, 17780, 17781, 17782, 17791, 17793, 17796, 17797, | |
197 | 17801, 17803, 17806, 17834, 17844, 17848, 17868, 17869, 17870, 17885, | |
198 | 17892. | |
199 | ||
46d54873 FW |
200 | * CVE-2015-1472 CVE-2015-1473 Under certain conditions wscanf can allocate |
201 | too little memory for the to-be-scanned arguments and overflow the | |
202 | allocated buffer. The implementation now correctly computes the required | |
203 | buffer size when using malloc, and switches to malloc from alloca as | |
204 | intended. | |
042e1521 CD |
205 | |
206 | * A new semaphore algorithm has been implemented in generic C code for all | |
207 | machines. Previous custom assembly implementations of semaphore were | |
208 | difficult to reason about or ensure that they were safe. The new version | |
209 | of semaphore supports machines with 64-bit or 32-bit atomic operations. | |
210 | The new semaphore algorithm is used by sem_init, sem_open, sem_post, | |
211 | sem_wait, sem_timedwait, sem_trywait, and sem_getvalue. | |
a39208bd | 212 | |
522e6ee3 CLT |
213 | * Port to Altera Nios II has been contributed by Mentor Graphics. |
214 | ||
d3b00f46 AZ |
215 | * Optimized strcpy, stpcpy, strncpy, stpncpy, strcmp, and strncmp |
216 | implementations for powerpc64/powerpc64le. | |
8bedcb5f | 217 | Implemented by Adhemerval Zanella (IBM). |
96d6fd6c | 218 | |
8d2c0a59 AZ |
219 | * Added support for TSX lock elision of pthread mutexes on powerpc32, powerpc64 |
220 | and powerpc64le. This may improve lock scaling of existing programs on | |
221 | HTM capable systems. The lock elision code is only enabled with | |
222 | --enable-lock-elision=yes. Also, the TSX lock elision implementation for | |
223 | powerpc will issue a transaction abort on every syscall to avoid side | |
224 | effects being visible outside transactions. | |
225 | ||
dc400d7b RE |
226 | * Optimized strcpy, stpcpy, strchrnul and strrchr implementations for |
227 | AArch64. Contributed by ARM Ltd. | |
ec582ca0 | 228 | |
0f9dfe04 L |
229 | * i386 memcpy functions optimized with SSE2 unaligned load/store. |
230 | ||
a39208bd CD |
231 | * CVE-2104-7817 The wordexp function could ignore the WRDE_NOCMD flag |
232 | under certain input conditions resulting in the execution of a shell for | |
ebda2f17 | 233 | command substitution when the application did not request it. The |
a39208bd CD |
234 | implementation now checks WRDE_NOCMD immediately before executing the |
235 | shell and returns the error WRDE_CMDSUB as expected. | |
fb89b46d | 236 | |
a5357b7c JL |
237 | * CVE-2012-3406 printf-style functions could run into a stack overflow when |
238 | processing format strings with a large number of format specifiers. | |
239 | ||
e54db0ea AM |
240 | * CVE-2014-9402 The nss_dns implementation of getnetbyname could run into an |
241 | infinite loop if the DNS response contained a PTR record of an unexpected | |
242 | format. | |
11e3417a | 243 | |
4863355a JM |
244 | * The minimum GCC version that can be used to build this version of the GNU |
245 | C Library is GCC 4.6. Older GCC versions, and non-GNU compilers, can | |
246 | still be used to compile programs using the GNU C Library. | |
247 | ||
a4ecc9eb JM |
248 | * The GNU C Library is now built with -Werror by default. This can be |
249 | disabled by configuring with --disable-werror. | |
250 | ||
0d560bbf | 251 | * New locales: tu_IN, bh_IN, raj_IN, ce_RU. |
0781a777 RM |
252 | |
253 | * The obsolete sigvec function has been removed. This was the original | |
254 | 4.2BSD interface that inspired the POSIX.1 sigaction interface, which | |
255 | programs have been using instead for about 25 years. Of course, ABI | |
256 | compatibility for old binaries using sigvec remains intact. | |
6d248857 WN |
257 | |
258 | * Merged gettext 0.19.3 into the intl subdirectory. This fixes building | |
259 | with newer versions of bison. | |
28c38448 MF |
260 | |
261 | * Support for MIPS o32 FPXX, FP64A and FP64 ABI Extensions. | |
262 | The original MIPS o32 hard-float ABI requires an FPU where double-precision | |
263 | registers overlay two consecutive single-precision registers. MIPS32R2 | |
264 | introduced a new FPU mode (FR=1) where double-precision registers extend the | |
265 | corresponding single-precision registers which is incompatible with the | |
266 | o32 hard-float ABI. The MIPS SIMD ASE and the MIPSR6 architecture both | |
267 | require the use of FR=1 making a transition necessary. New o32 ABI | |
268 | extensions enable users to migrate over time from the original o32 ABI | |
269 | through to the updated o32 FP64 ABI. To achieve this the dynamic linker now | |
270 | tracks the ABI of any loaded object and verifies that new objects are | |
271 | compatible. Mode transitions will also be requested as required and | |
272 | unsupportable objects will be rejected. The ABI checks include both soft and | |
273 | hard float ABIs for o32, n32 and n64. | |
274 | ||
275 | GCC 5 with GNU binutils 2.25 onwards: | |
276 | It is strongly recommended that all o32 system libraries are built using the | |
277 | new o32 FPXX ABI (-mfpxx) to facilitate the transition as this is compatible | |
278 | with the original and all new o32 ABI extensions. Configure a MIPS GCC | |
279 | compiler using --with-fp-32=xx to set this by default. | |
58b930ae | 280 | \f |
d5b396c1 AM |
281 | Version 2.20 |
282 | ||
283 | * The following bugs are resolved with this release: | |
284 | ||
6a9350c8 JM |
285 | 6804, 9894, 11505, 12994, 13347, 13651, 14308, 14770, 15119, 15132, 15347, |
286 | 15514, 15698, 15804, 15894, 15946, 16002, 16064, 16095, 16194, 16198, | |
287 | 16275, 16284, 16287, 16315, 16348, 16349, 16354, 16357, 16362, 16447, | |
288 | 16516, 16532, 16539, 16545, 16561, 16562, 16564, 16574, 16599, 16600, | |
289 | 16609, 16610, 16611, 16613, 16619, 16623, 16629, 16632, 16634, 16639, | |
290 | 16642, 16648, 16649, 16670, 16674, 16677, 16680, 16681, 16683, 16689, | |
291 | 16695, 16701, 16706, 16707, 16712, 16713, 16714, 16724, 16731, 16739, | |
292 | 16740, 16743, 16754, 16758, 16759, 16760, 16770, 16786, 16789, 16791, | |
293 | 16796, 16799, 16800, 16815, 16823, 16824, 16831, 16838, 16839, 16849, | |
294 | 16854, 16876, 16877, 16878, 16882, 16885, 16888, 16890, 16892, 16912, | |
295 | 16915, 16916, 16917, 16918, 16922, 16927, 16928, 16932, 16943, 16958, | |
296 | 16965, 16966, 16967, 16977, 16978, 16984, 16990, 16996, 17009, 17022, | |
297 | 17031, 17042, 17048, 17050, 17058, 17061, 17062, 17069, 17075, 17078, | |
298 | 17079, 17084, 17086, 17088, 17092, 17097, 17125, 17135, 17137, 17150, | |
299 | 17153, 17187, 17213, 17259, 17261, 17262, 17263, 17319, 17325, 17354. | |
0961f7e1 | 300 | |
95ee7fb1 SL |
301 | * Reverted change of ABI data structures for s390 and s390x: |
302 | On s390 and s390x the size of struct ucontext and jmp_buf was increased in | |
303 | 2.19. This change is reverted in 2.20. The introduced 2.19 symbol versions | |
304 | of getcontext, setjmp, _setjmp, __sigsetjmp, longjmp, _longjmp, siglongjmp | |
305 | are preserved pointing straight to the same implementation as the old ones. | |
45ef6628 | 306 | Given that, new callers will simply provide a too-big buffer to these |
95ee7fb1 SL |
307 | functions. Any applications/libraries out there that embed jmp_buf or |
308 | ucontext_t in an ABI-relevant data structure that have already been rebuilt | |
309 | against 2.19 headers will have to rebuilt again. This is necessary in any | |
310 | case to revert the breakage in their ABI caused by the glibc change. | |
311 | ||
0961f7e1 JL |
312 | * Support for file description locks is added to systems running the |
313 | Linux kernel. The standard file locking interfaces are extended to | |
314 | operate on file descriptions, not file descriptors, via the use of | |
315 | F_OFD_GETLK, F_OFD_SETLK, and F_OFD_SETLKW. File description locks | |
316 | are associated with an open file instead of a process. | |
f3d338c9 | 317 | |
f940b965 RE |
318 | * Optimized strchr implementation for AArch64. Contributed by ARM Ltd. |
319 | ||
d0f5b3f8 JM |
320 | * The minimum Linux kernel version that this version of the GNU C Library |
321 | can be used with is 2.6.32. | |
322 | ||
d6fe5e58 JM |
323 | * Running the testsuite no longer terminates as soon as a test fails. |
324 | Instead, a file tests.sum (xtests.sum from "make xcheck") is generated, | |
325 | with PASS or FAIL lines for individual tests. A summary of the results is | |
326 | printed, including a list of failing lists, and "make check" exits with | |
327 | error status if there were any unexpected failures. "make check | |
328 | stop-on-test-failure=y" may be used to keep the old behavior. | |
329 | ||
464263cc JM |
330 | * The am33 port, which had not worked for several years, has been removed |
331 | from ports. | |
c941736c JM |
332 | |
333 | * The _BSD_SOURCE and _SVID_SOURCE feature test macros are no longer | |
334 | supported; they now act the same as _DEFAULT_SOURCE (but generate a | |
335 | warning). Except for cases where _BSD_SOURCE enabled BSD interfaces that | |
336 | conflicted with POSIX (support for which was removed in 2.19), the | |
337 | interfaces those macros enabled remain available when compiling with | |
338 | _GNU_SOURCE defined, with _DEFAULT_SOURCE defined, or without any feature | |
339 | test macros defined. | |
f63c86fe WN |
340 | |
341 | * Optimized strcmp implementation for ARMv7. Contributed by ARM Ltd. | |
5a414ff7 DV |
342 | |
343 | * Added support for TX lock elision of pthread mutexes on s390 and s390x. | |
344 | This may improve lock scaling of existing programs on TX capable systems. | |
345 | The lock elision code is only built with --enable-lock-elision=yes and | |
346 | then requires a GCC version supporting the TX builtins. With lock elision | |
347 | default mutexes are elided via __builtin_tbegin, if the cpu supports | |
348 | transactions. By default lock elision is not enabled and the elision code | |
349 | is not built. | |
d03efb2f AM |
350 | |
351 | * CVE-2014-4043 The posix_spawn_file_actions_addopen implementation did not | |
352 | copy the path argument. This allowed programs to cause posix_spawn to | |
353 | deference a dangling pointer, or use an unexpected pathname argument if | |
354 | the string was modified after the posix_spawn_file_actions_addopen | |
355 | invocation. | |
cfd2ea50 JM |
356 | |
357 | * All supported architectures now use the main glibc sysdeps directory | |
358 | instead of some being in a separate "ports" directory (which was | |
359 | distributed separately before glibc 2.17). | |
f083450f RM |
360 | |
361 | * The NPTL implementation of POSIX pthreads is no longer an "add-on". | |
362 | On configurations that support it (all Linux configurations), it's now | |
363 | used regardless of the --enable-add-ons switch to configure. It is no | |
364 | longer possible to build such configurations without pthreads support. | |
4e8f95a0 FW |
365 | |
366 | * Locale names, including those obtained from environment variables (LANG | |
367 | and the LC_* variables), are more tightly checked for proper syntax. | |
368 | setlocale will now fail (with EINVAL) for locale names that are overly | |
369 | long, contain slashes without starting with a slash, or contain ".." path | |
370 | components. (CVE-2014-0475) Previously, some valid locale names were | |
371 | silently replaced with the "C" locale when running in AT_SECURE mode | |
372 | (e.g., in a SUID program). This is no longer necessary because of the | |
373 | additional checks. | |
9a8a5720 RM |
374 | |
375 | * On x86-64, the dynamic linker's lazy-binding support is now compatible | |
376 | with application code using Intel MPX instructions. (With all previous | |
377 | versions, the MPX register state could be clobbered when making calls | |
378 | into or out of a shared library.) Note that while the new dynamic | |
379 | linker is compatible with all known x86 hardware whether or not it | |
380 | supports Intel MPX, some x86 instruction-set emulators might fail to | |
381 | handle the new instruction encodings. This is known to affect Valgrind | |
382 | versions up through 3.9 (but will be fixed in the forthcoming 3.10 | |
383 | release), and might affect other tools that do instruction emulation. | |
a1a6a401 FW |
384 | |
385 | * Support for loadable gconv transliteration modules has been removed. | |
386 | The support for transliteration modules has been non-functional for | |
387 | over a decade, and the removal is prompted by security defects. The | |
388 | normal gconv conversion modules are still supported. Transliteration | |
389 | with //TRANSLIT is still possible, and the //IGNORE specifier | |
f9df71e8 | 390 | continues to be supported. (CVE-2014-5119) |
41488498 FW |
391 | |
392 | * Decoding a crafted input sequence in the character sets IBM933, IBM935, | |
393 | IBM937, IBM939, IBM1364 could result in an out-of-bounds array read, | |
394 | resulting a denial-of-service security vulnerability in applications which | |
395 | use functions related to iconv. (CVE-2014-6040) | |
6c1fd795 DM |
396 | \f |
397 | Version 2.19 | |
398 | ||
399 | * The following bugs are resolved with this release: | |
400 | ||
fd2f9486 JM |
401 | 156, 387, 431, 762, 832, 926, 2801, 4772, 6786, 6787, 6807, 6810, 6981, |
402 | 7003, 9721, 9954, 10253, 10278, 11087, 11157, 11214, 12100, 12486, 12751, | |
403 | 12986, 13028, 13982, 13985, 14029, 14032, 14120, 14143, 14155, 14286, | |
404 | 14547, 14699, 14752, 14782, 14876, 14910, 15004, 15048, 15073, 15089, | |
405 | 15128, 15218, 15268, 15277, 15308, 15362, 15374, 15400, 15425, 15427, | |
406 | 15483, 15522, 15531, 15532, 15593, 15601, 15608, 15609, 15610, 15632, | |
407 | 15640, 15670, 15672, 15680, 15681, 15723, 15734, 15735, 15736, 15748, | |
408 | 15749, 15754, 15760, 15763, 15764, 15797, 15799, 15825, 15843, 15844, | |
409 | 15846, 15847, 15849, 15850, 15855, 15856, 15857, 15859, 15867, 15886, | |
410 | 15887, 15890, 15892, 15893, 15895, 15897, 15901, 15905, 15909, 15915, | |
ed27ed83 JM |
411 | 15917, 15919, 15921, 15923, 15939, 15941, 15948, 15963, 15966, 15968, |
412 | 15985, 15988, 15997, 16032, 16034, 16036, 16037, 16038, 16041, 16046, | |
413 | 16055, 16071, 16072, 16074, 16077, 16078, 16103, 16112, 16143, 16144, | |
414 | 16146, 16150, 16151, 16153, 16167, 16169, 16172, 16195, 16214, 16245, | |
415 | 16271, 16274, 16283, 16289, 16293, 16314, 16316, 16330, 16337, 16338, | |
798212a0 PP |
416 | 16356, 16365, 16366, 16369, 16372, 16375, 16379, 16381, 16384, 16385, |
417 | 16386, 16387, 16390, 16394, 16398, 16400, 16407, 16408, 16414, 16430, | |
418 | 16431, 16453, 16474, 16506, 16510, 16529 | |
141f3a77 | 419 | |
11520a57 CD |
420 | * Slovenian translations for glibc messages have been contributed by the |
421 | Translation Project's Slovenian team of translators. | |
422 | ||
2fe16229 CD |
423 | * The public headers no longer use __unused nor __block. This change is to |
424 | support compiling programs that are derived from BSD sources and use | |
425 | __unused internally, and to support compiling with Clang's -fblock | |
08d76093 CD |
426 | extension which uses __block. |
427 | ||
303e567a SP |
428 | * CVE-2012-4412 The strcoll implementation caches indices and rules for |
429 | large collation sequences to optimize multiple passes. This cache | |
430 | computation may overflow for large collation sequences and may cause a | |
431 | stack or buffer overflow. This is now fixed to use a slower algorithm | |
432 | which does not use a cache if there is an integer overflow. | |
433 | ||
141f3a77 SP |
434 | * CVE-2012-4424 The strcoll implementation uses malloc to cache indices and |
435 | rules for large collation sequences to optimize multiple passes and falls | |
436 | back to alloca if malloc fails, resulting in a possible stack overflow. | |
437 | The implementation now falls back to an uncached collation sequence lookup | |
438 | if malloc fails. | |
c61b4d41 CD |
439 | |
440 | * CVE-2013-4788 The pointer guard used for pointer mangling was not | |
441 | initialized for static applications resulting in the security feature | |
442 | being disabled. The pointer guard is now correctly initialized to a | |
443 | random value for static applications. Existing static applications need | |
444 | to be recompiled to take advantage of the fix (bug 15754). | |
91ce4085 FW |
445 | |
446 | * CVE-2013-4237 The readdir_r function could write more than NAME_MAX bytes | |
447 | to the d_name member of struct dirent, or omit the terminating NUL | |
448 | character. (Bugzilla #14699). | |
449 | ||
ba0d798c WN |
450 | * CVE-2013-4332 The pvalloc, valloc, memalign, posix_memalign and |
451 | aligned_alloc functions could allocate too few bytes or corrupt the | |
452 | heap when passed very large allocation size values (Bugzilla #15855, | |
453 | #15856, #15857). | |
454 | ||
7cbcdb36 SP |
455 | * CVE-2013-4458 Stack overflow in getaddrinfo with large number of results |
456 | for AF_INET6 has been fixed (Bugzilla #16072). | |
457 | ||
82bab04b | 458 | * New locales: ak_GH, anp_IN, ar_SS, cmn_TW, hak_TW, lzh_TW, nan_TW, pap_AW, |
b46d046e | 459 | pap_CW, quz_PE, the_NP. |
ddd9fb8f | 460 | |
c5f840fd MB |
461 | * Substantially revised locales: gd_GB, ht_HT |
462 | ||
3e181dda CD |
463 | * The LC_ADDRESS field was updated to support country_car for almost all |
464 | supported locales. | |
ddd9fb8f | 465 | |
3e181dda | 466 | * ISO 1427 definitions were updated. |
7447ccd9 | 467 | |
8a05c252 CL |
468 | * ISO 3166 definitions were updated. |
469 | ||
6055173a JM |
470 | * The localedef utility now supports --big-endian and --little-endian |
471 | command-line options to generate locales for a different system from that | |
472 | for which the C library was built. | |
473 | ||
b125d3e5 JM |
474 | * Binary locale files now only depend on the endianness of the system for |
475 | which they are generated and not on other properties of that system. As a | |
476 | consequence, binary files generated with new localedef may be incompatible | |
477 | with old versions of the GNU C Library, and binary files generated with | |
478 | old localedef may be incompatible with this version of the GNU C Library, | |
479 | in the following circumstances: | |
480 | ||
481 | + Locale files may be incompatible on m68k systems. | |
482 | ||
483 | + Locale archive files (but not separate files for individual locales) may | |
484 | be incompatible on systems where plain "char" is signed. | |
485 | ||
d4f66d37 JM |
486 | * The configure option --disable-versioning has been removed. Builds with |
487 | --disable-versioning had not worked for several years. | |
488 | ||
3e181dda CD |
489 | * ISO 639 definitions were updated for Chiga (cgg) and Chinese (gan, hak, czh, |
490 | cjy, lzh, cmn, mnp, cdo, czo, cpx, wuu, hsn, yue). | |
e35696c3 | 491 | |
ffb89e53 AO |
492 | * SystemTap probes for malloc have been introduced. |
493 | ||
5d29ccce SP |
494 | * SystemTap probes for slow multiple precision fallback paths of |
495 | transcendental functions have been introduced. | |
496 | ||
8b7d57cd | 497 | * Support for powerpc64le has been added. |
b125d3e5 JM |
498 | |
499 | * The soft-float powerpc port now supports e500 processors. | |
0a3ac0aa | 500 | |
fd712ef3 | 501 | * Support for STT_GNU_IFUNC symbols added for ppc32/power4+ and ppc64. |
7011c262 | 502 | |
c688b419 JM |
503 | * A new feature test macro _DEFAULT_SOURCE is available to enable the same |
504 | set of header declarations that are enabled by default, even when other | |
505 | feature test macros or compiler options such as -std=c99 would otherwise | |
506 | disable some of those declarations. | |
507 | ||
7011c262 | 508 | * The _BSD_SOURCE feature test macro no longer enables BSD interfaces that |
029c7b25 JM |
509 | conflict with POSIX. The libbsd-compat library (which was a dummy library |
510 | that did nothing) has also been removed. | |
0a57b83e AO |
511 | |
512 | * Preliminary documentation about Multi-Thread, Async-Signal and | |
513 | Async-Cancel Safety has been added. | |
ee4ec1d7 AK |
514 | |
515 | * Change of ABI data structures for s390 and s390x: | |
516 | On s390 and s390x the size of struct ucontext and jmp_buf was increased to | |
517 | allow for future hardware extensions. All library functions that accept or | |
518 | return these structures were versioned in order to provide backwards | |
519 | compatibility with existing code. However, not all cases can be handled | |
520 | with interface versioning. If an application embeds either structure into | |
521 | another structure and that structure is passed to another compilation unit | |
522 | which expects the newer larger-sized object then any access to the new | |
523 | fields will result in undefined behaviour. Similarly any access to fields | |
524 | that were moved by the enlarging of the structures will cause undefined | |
525 | behaviour. To fix the undefined behaviour all objects that are part of the | |
526 | final in-memory image must agree on the size of structures, and this may | |
527 | require recompilation. | |
2c8bfe7d DM |
528 | \f |
529 | Version 2.18 | |
530 | ||
531 | * The following bugs are resolved with this release: | |
532 | ||
17db6e8d | 533 | 2546, 2560, 5159, 6809, 7006, 10060, 10062, 10283, 10357, 10686, 11120, |
0432680e PY |
534 | 11561, 12310, 12387, 12492, 12515, 12723, 13550, 13889, 13951, 13988, |
535 | 14142, 14176, 14200, 14256, 14280, 14293, 14317, 14327, 14478, 14496, | |
8c17cb1f JM |
536 | 14582, 14686, 14812, 14888, 14894, 14907, 14908, 14909, 14920, 14941, |
537 | 14952, 14964, 14981, 14982, 14985, 14991, 14994, 14996, 15000, 15003, | |
538 | 15006, 15007, 15014, 15020, 15022, 15023, 15036, 15054, 15055, 15062, | |
539 | 15078, 15084, 15085, 15086, 15100, 15160, 15214, 15221, 15232, 15234, | |
540 | 15283, 15285, 15287, 15304, 15305, 15307, 15309, 15327, 15330, 15335, | |
541 | 15336, 15337, 15339, 15342, 15346, 15359, 15361, 15366, 15380, 15381, | |
542 | 15394, 15395, 15405, 15406, 15409, 15416, 15418, 15419, 15423, 15424, | |
543 | 15426, 15429, 15431, 15432, 15441, 15442, 15448, 15465, 15480, 15485, | |
544 | 15488, 15490, 15492, 15493, 15497, 15506, 15529, 15536, 15553, 15577, | |
545 | 15583, 15618, 15627, 15631, 15654, 15655, 15666, 15667, 15674, 15711, | |
546 | 15755, 15759. | |
e4608715 CD |
547 | |
548 | * CVE-2013-2207 Incorrectly granting access to another user's pseudo-terminal | |
549 | has been fixed by disabling the use of pt_chown (Bugzilla #15755). | |
550 | Distributions can re-enable building and using pt_chown via the new configure | |
551 | option `--enable-pt_chown'. Enabling the use of pt_chown carries with it | |
552 | considerable security risks and should only be used if the distribution | |
553 | understands and accepts the risks. | |
1cef1b19 | 554 | |
5b535ac4 AS |
555 | * CVE-2013-0242 Buffer overrun in regexp matcher has been fixed (Bugzilla |
556 | #15078). | |
557 | ||
1cef1b19 AS |
558 | * CVE-2013-1914 Stack overflow in getaddrinfo with many results has been |
559 | fixed (Bugzilla #15330). | |
7fffbdff | 560 | |
55e4107b SP |
561 | * Add support for calling C++11 thread_local object destructors on thread |
562 | and program exit. This needs compiler support for offloading C++11 | |
563 | destructor calls to glibc. | |
564 | ||
e5c74c63 SP |
565 | * Improved worst case performance of libm functions with double inputs and |
566 | output. | |
567 | ||
568 | * Support for priority inherited mutexes in pthread condition variables on | |
569 | non-x86 architectures. | |
570 | ||
e7521973 JM |
571 | * Port to Xilinx MicroBlaze contributed by David Holsgrove. |
572 | ||
573 | * Optimized string functions for AArch64. Implemented by Marcus Shawcroft. | |
574 | ||
575 | * Optimized string functions for ARM. Implemented by Will Newton and | |
576 | Richard Henderson. | |
577 | ||
578 | * Optimized libm functions for SPARC. Implemented by David S. Miller. | |
579 | ||
580 | * Support for building more of ARM glibc as Thumb-2 code. Implemented by | |
581 | Richard Henderson. | |
582 | ||
583 | * Support for building most of MIPS glibc as MIPS16 code. Implemented by | |
584 | Chung-Lin Tang, Maciej W. Rozycki and Maxim Kuvyrkov. | |
585 | ||
8cfdb7e0 SP |
586 | * Added a benchmark framework to track performance of functions in glibc. |
587 | ||
57267616 TS |
588 | * New <math.h> macro named issignaling to check for a signaling NaN (sNaN). |
589 | It is based on draft TS 18661 and currently enabled as a GNU extension. | |
58206c68 | 590 | |
c204ab28 SP |
591 | * On Linux, the clock function now uses the clock_gettime system call |
592 | for improved precision, rather than old times system call. | |
61dd6208 | 593 | |
0748546f PE |
594 | * Added support for version-3 tz format files. This is needed when using |
595 | the tz database release 2013e or later, and affects a few unusual cases -- | |
596 | currently only TZ='America/Godthab' for time stamps after 2037. | |
597 | ||
61dd6208 SP |
598 | * Added new API functions pthread_getattr_default_np and |
599 | pthread_setattr_default_np to get and set the default pthread | |
600 | attributes of a process. | |
a7cb9d67 AK |
601 | |
602 | * Added support for TSX lock elision for pthread mutexes on i386 and x86-64. | |
603 | This may improve lock scaling of existing programs on TSX capable systems. | |
604 | When the --enable-lock-elision=yes parameter is specified at configure | |
605 | time lock elision will be enabled by default for all PTHREAD_MUTEX_DEFAULT | |
606 | mutexes. | |
be063fa4 RA |
607 | |
608 | * Support added for AT_HWCAP2 (to coincide with Linux kernel 3.10 | |
609 | availability). Implemented by Ryan S. Arnold. | |
610 | ||
611 | * Support added for POWER8 platform. Implemented by Ryan S. Arnold. | |
370ca3d2 JM |
612 | \f |
613 | Version 2.17 | |
614 | ||
615 | * The following bugs are resolved with this release: | |
616 | ||
80ceeaee | 617 | 1349, 3439, 3479, 3665, 5044, 5246, 5298, 5400, 6530, 6677, 6778, 6808, |
b4180a5e AJ |
618 | 9685, 9914, 10014, 10038, 10114, 10191, 10631, 10873, 11438, 11607, 11638, |
619 | 11741, 12140, 13013, 13412, 13542, 13601, 13603, 13604, 13629, 13679, | |
620 | 13696, 13698, 13717, 13741, 13759, 13761, 13763, 13881, 13939, 13950, | |
621 | 13952, 13966, 14042, 14047, 14090, 14150, 14151, 14152, 14154, 14157, | |
622 | 14166, 14173, 14195, 14197, 14237, 14246, 14251, 14252, 14283, 14298, | |
623 | 14303, 14307, 14328, 14331, 14336, 14337, 14347, 14349, 14368, 14376, | |
624 | 14417, 14447, 14459, 14476, 14477, 14501, 14505, 14510, 14516, 14518, | |
625 | 14519, 14530, 14532, 14538, 14543, 14544, 14545, 14557, 14562, 14568, | |
626 | 14576, 14579, 14583, 14587, 14595, 14602, 14610, 14621, 14638, 14645, | |
627 | 14648, 14652, 14660, 14661, 14669, 14672, 14683, 14694, 14716, 14719, | |
628 | 14743, 14767, 14783, 14784, 14785, 14793, 14796, 14797, 14801, 14803, | |
629 | 14805, 14807, 14811, 14815, 14821, 14822, 14824, 14828, 14831, 14833, | |
630 | 14835, 14838, 14856, 14863, 14865, 14866, 14868, 14869, 14871, 14872, | |
631 | 14879, 14889, 14893, 14898, 14914. | |
14bc93a9 | 632 | |
95b4f1b6 SE |
633 | * Optimization of memcpy for MIPS. |
634 | ||
14bc93a9 JL |
635 | * CVE-2011-4609 svc_run() produces high cpu usage when accept fails with |
636 | EMFILE has been fixed (Bugzilla #14889). | |
7a845b2c | 637 | |
b54eb3cb JM |
638 | * The add-on ports collection is now distributed in the "ports" subdirectory |
639 | of the main GNU C Library distribution, rather than separately. | |
640 | ||
7e2bd01f MS |
641 | * Port to ARM AArch64 contributed by Linaro. |
642 | ||
08f43f9b AK |
643 | * Support for STT_GNU_IFUNC symbols added for s390 and s390x. |
644 | Optimized versions of memcpy, memset, and memcmp added for System z10 and | |
645 | zEnterprise z196. | |
646 | Implemented by Andreas Krebbel. | |
647 | ||
84b3fd84 FW |
648 | * The new function secure_getenv allows secure access to the environment, |
649 | returning NULL if running in a SUID/SGID process. This function replaces | |
650 | the internal function __secure_getenv. | |
651 | ||
815e6fa3 GB |
652 | * SystemTap static probes have been added into the dynamic linker. |
653 | Implemented by Gary Benson. | |
654 | ||
400726de MK |
655 | * Optimizations of string functions strstr, strcasestr and memmem. |
656 | Implemented by Maxim Kuvyrkov. | |
657 | ||
7aab07e4 | 658 | * The minimum Linux kernel version that this version of the GNU C Library |
6dad2c06 | 659 | can be used with is 2.6.16. |
7aab07e4 | 660 | |
15d0da8c WS |
661 | * Optimizations of string functions memchr, wcschr, wcscpy, and wcsrchr for |
662 | powerpc POWER7. Implemented by Will Schmidt. | |
663 | ||
3cc3ef96 RM |
664 | * New configure option --disable-nscd builds the C library such that it |
665 | never attempts to contact the Name Service Caching Daemon (nscd). | |
c53d909c RM |
666 | New configure option --disable-build-nscd avoids building nscd itself; |
667 | this is the default if --disable-nscd is used. | |
3cc3ef96 | 668 | |
b54eb3cb JM |
669 | * Improved support for cross-compilation, including cross-testing and |
670 | bootstrap builds without a previously built glibc. | |
671 | ||
85429b1a | 672 | * Several testsuite tests are now able to test multiple IFUNC variants of an |
0d224d52 | 673 | interface, rather than just testing the one that would be chooen by |
85429b1a DM |
674 | default. |
675 | ||
b54eb3cb JM |
676 | * New configure options --with-bugurl and --with-pkgversion, for |
677 | distributors to use to embed their bug-reporting and package version | |
678 | information in --help and --version output. | |
679 | ||
050af9c4 SP |
680 | * The ttyname and ttyname_r functions on Linux now fall back to searching for |
681 | the tty file descriptor in /dev/pts or /dev if /proc is not available. This | |
682 | allows creation of chroots without the procfs mounted on /proc. | |
683 | ||
89a3ad0b AO |
684 | * The `crypt' function now fails if passed salt bytes that violate the |
685 | specification for those values. On Linux, the `crypt' function will | |
686 | consult /proc/sys/crypto/fips_enabled to determine if "FIPS mode" is | |
687 | enabled, and fail on encrypted strings using the MD5 or DES algorithm | |
688 | when the mode is enabled. | |
689 | ||
6e6249d0 RM |
690 | * The `clock_*' suite of functions (declared in <time.h>) is now available |
691 | directly in the main C library. Previously it was necessary to link with | |
692 | -lrt to use these functions. This change has the effect that a | |
693 | single-threaded program that uses a function such as `clock_gettime' (and | |
694 | is not linked with -lrt) will no longer implicitly load the pthreads | |
695 | library at runtime and so will not suffer the overheads associated with | |
696 | multi-thread support in other code such as the C++ runtime library. | |
5a04f376 | 697 | |
d9286582 NK |
698 | * New locales: ayc_PE, doi_IN, ia_FR, mni_IN, nhn_MX, niu_NU, niu_NZ, |
699 | sat_IN, and szl_PL. | |
8d44e150 UD |
700 | \f |
701 | Version 2.16 | |
702 | ||
703 | * The following bugs are resolved with this release: | |
704 | ||
a8133e19 JM |
705 | 174, 208, 350, 369, 411, 706, 766, 2074, 2541, 2547, 2548, 2550, 2551, |
706 | 2552, 2553, 2554, 2562, 2563, 2565, 2566, 2570, 2576, 2636, 2678, 3335, | |
707 | 3440, 3748, 3768, 3866, 3868, 3906, 3976, 3992, 4026, 4108, 4596, 4822, | |
708 | 5077, 5461, 5805, 5993, 6471, 6486, 6578, 6649, 6730, 6770, 6794, 6884, | |
709 | 6890, 6894, 6895, 6907, 6911, 6959, 7064, 9739, 9902, 10110, 10135, 10140, | |
710 | 10153, 10210, 10254, 10346, 10375, 10545, 10716, 10846, 10882, 11174, | |
711 | 11261, 11322, 11365, 11451, 11494, 11521, 11677, 11837, 11959, 12047, | |
712 | 12097, 12193, 12194, 12297, 12298, 12301, 12340, 12354, 12416, 12495, | |
713 | 13058, 13223, 13361, 13525, 13526, 13527, 13528, 13529, 13530, 13531, | |
714 | 13532, 13533, 13547, 13551, 13552, 13553, 13555, 13556, 13559, 13563, | |
715 | 13566, 13576, 13579, 13583, 13592, 13594, 13613, 13618, 13637, 13656, | |
716 | 13658, 13673, 13691, 13695, 13704, 13705, 13706, 13718, 13726, 13738, | |
717 | 13739, 13743, 13750, 13758, 13760, 13761, 13775, 13786, 13787, 13792, | |
718 | 13806, 13824, 13840, 13841, 13844, 13846, 13848, 13851, 13852, 13854, | |
719 | 13871, 13872, 13873, 13879, 13882, 13883, 13884, 13885, 13886, 13892, | |
720 | 13895, 13908, 13910, 13911, 13912, 13913, 13914, 13915, 13916, 13917, | |
721 | 13918, 13919, 13920, 13921, 13922, 13923, 13924, 13926, 13927, 13928, | |
722 | 13938, 13941, 13942, 13954, 13955, 13956, 13963, 13967, 13968, 13970, | |
723 | 13973, 13979, 13983, 13986, 13996, 14012, 14027, 14033, 14034, 14036, | |
724 | 14040, 14043, 14044, 14048, 14049, 14050, 14053, 14055, 14059, 14064, | |
725 | 14075, 14080, 14083, 14103, 14104, 14109, 14112, 14117, 14122, 14123, | |
726 | 14134, 14153, 14183, 14188, 14199, 14210, 14218, 14229, 14241, 14273, | |
727 | 14277, 14278. | |
380d7e87 | 728 | |
a086b4d6 L |
729 | * Support for the x32 ABI on x86-64 added. The x32 target is selected by |
730 | configuring glibc with: | |
731 | BUILD_CC='gcc' CC='gcc -mx32' CXX='g++ -mx32' | |
732 | Visit <http://sites.google.com/site/x32abi/> for more x32 ABI info. | |
733 | Implemented by H.J. Lu. | |
734 | ||
380d7e87 UD |
735 | * ISO C11 support: |
736 | ||
737 | + define static_assert | |
738 | ||
739 | + do not declare gets | |
740 | ||
741 | + declare at_quick_exit and quick_exit also for ISO C11 | |
742 | ||
743 | + aligned_alloc. NB: The code is deliberately allows the size parameter | |
744 | to not be a multiple of the alignment. This is a moronic requirement | |
745 | in the standard but it is only a requirement on the caller, not the | |
746 | implementation. | |
8d44e150 | 747 | |
74033a25 | 748 | + timespec_get added |
544563c9 UD |
749 | |
750 | + uchar.h support added | |
d75a0a62 | 751 | |
ac097f5c UD |
752 | + CMPLX, CMPLXF, CMPLXL added |
753 | ||
16dd419d UD |
754 | Implemented by Ulrich Drepper. |
755 | ||
9dc4e1fb | 756 | * Support for the IA-64 has been moved to ports. |
33808bf1 UD |
757 | |
758 | * Remove support for anything but ELF binary format | |
d9a216c0 UD |
759 | |
760 | * Checking versions of poll, ppoll added. | |
761 | Implemented by Ulrich Drepper. | |
daa891c0 UD |
762 | |
763 | * More generic and 64-bit performance optimizations to math functions. | |
764 | Implemented by Ulrich Drepper. | |
021db4be AJ |
765 | |
766 | * New configure option --enable-obsolete-rpc makes the deprecated RPC | |
767 | headers and functions available at compile time as they were before | |
768 | version 2.14. This option will be removed at some time in the future | |
769 | after the TI-RPC library becomes fully sufficient for the needs of | |
770 | existing applications. | |
ffb7875d | 771 | |
21708942 | 772 | * Compatibility code for Linux kernel versions before 2.4 has been removed. |
ffb7875d JM |
773 | Note that glibc is not expected to work with any Linux kernel version |
774 | before 2.6. | |
83678f76 | 775 | |
edb00e4d RH |
776 | * New header <sys/auxv.h> and function getauxval allowing easy access to |
777 | the AT_* key-value pairs passed from the Linux kernel. The header also | |
778 | defines the HWCAP_* bits associated with the AT_HWCAP key. | |
779 | ||
83678f76 | 780 | * New locales: mag_IN |
7b44a2df RM |
781 | |
782 | * New configure option --enable-systemtap builds SystemTap static probes | |
783 | into libc for setjmp and longjmp and into libpthread for various operations. | |
784 | So far the setjmp/longjmp probes and some of the libpthread probes are | |
785 | provided only for i*86 and x86_64. | |
786 | Implemented by Roland McGrath and Rayson Ho. | |
47e452cf JM |
787 | |
788 | * Optimized expf for x86-32 and x86-64. Implemented by Liubov Dmitrieva. | |
789 | ||
d9dc34cd TMQMF |
790 | * More optimized functions for PowerPC. Implemented by Adhemerval Zanella |
791 | and Will Schmidt. | |
47e452cf JM |
792 | |
793 | * More optimized functions for SPARC. Implemented by David S. Miller. | |
794 | ||
795 | * Improved support for cross-compilation, especially bootstrap builds | |
796 | without a previously built glibc. | |
797 | ||
798 | * Ports for the TILE-Gx and TILEPro families of processors. Contributed by | |
799 | Chris Metcalf from Tilera. | |
800 | ||
801 | * Support for the old ARM ABI has been removed from ports. Only the EABI is | |
802 | now supported for ARM processors. | |
803 | ||
804 | * The hard-float variant of the ARM EABI now uses /lib/ld-linux-armhf.so.3 | |
805 | as the name of the dynamic linker, to distinguish it from the | |
806 | /lib/ld-linux.so.3 dynamic linker used for the base EABI. | |
807 | ||
808 | * Support for CRIS has been removed from ports. | |
d9dc34cd TMQMF |
809 | |
810 | * A new class of installed header has been documented for low-level | |
811 | platform-specific functionality. PowerPC added the first instance with a | |
812 | function to provide time base register access. Contributed by Tulio | |
813 | Magno Quites Machado Filho. | |
929cc14e AJ |
814 | |
815 | * ix86 configurations now install header files that are consistent with | |
816 | what x86-64 configurations install. These same header files can be used | |
817 | for -m32, -m64, or -mx32 builds. | |
818 | Contributed by H.J. Lu. | |
ee9247c3 CD |
819 | |
820 | * Math library bug fixes. A thorough audit of all open math library bugs was | |
821 | conducted by Joseph Myers. Significant progress was made on many math | |
822 | library bugs resulting in more accurate exceptions and function results. | |
823 | Many thanks to all those that contributed including Andreas Jaeger for his | |
824 | patch review and work on the x87 trigonometric instruction issues. | |
825 | ||
826 | * Timezone data is no longer installed. Timezone-related binaries and scripts | |
827 | will continue to be installed. Users should obtain their timezone data from | |
828 | their distribution provider or from the tzdata package at | |
829 | <ftp://munnari.oz.au/pub/>. | |
ee1a7fab | 830 | \f |
e80fab37 | 831 | Version 2.15 |
11988f8f | 832 | |
c0244a9d UD |
833 | * The following bugs are resolved with this release: |
834 | ||
aebae053 UD |
835 | 6779, 6783, 9696, 10103, 10709, 11589, 11929, 12403, 12786, 12840, 12847, |
836 | 12868, 12852, 12874, 12885, 12892, 12906, 12907, 12922, 12935, 12962, | |
837 | 13007, 13021, 13061, 13062, 13067, 13068, 13085, 13088, 13090, 13092, | |
838 | 13096, 13114, 13118, 13123, 13134, 13138, 13147, 13150, 13166, 13179, | |
839 | 13185, 13189, 13192, 13268, 13276, 13282, 13291, 13305, 13328, 13335, | |
840 | 13337, 13344, 13358, 13367, 13413, 13416, 13423, 13439, 13446, 13472, | |
841 | 13484, 13506, 13515, 13523, 13524, 13538, 13540 | |
c0244a9d | 842 | |
11988f8f UD |
843 | * New program pldd to list loaded object of a process |
844 | Implemented by Ulrich Drepper. | |
9f2da732 UD |
845 | |
846 | * Add nss_db support back to glibc. No more dependency on Berkeley db | |
847 | and support for initgroups lookups. | |
848 | Implemented by Ulrich Drepper. | |
0b1cbaae L |
849 | |
850 | * Optimized strcpy, strncpy, stpcpy, stpncpy for SSE2 and SSSE3 on x86-32. | |
851 | Contributed by HJ Lu. | |
8912479f L |
852 | |
853 | * Improved strcpy, strncpy, stpcpy, stpncpy for SSE2 and SSSE3 on x86-64. | |
854 | Contributed by HJ Lu. | |
99710781 | 855 | |
fc2ee42a LD |
856 | * Optimized strcat, strncat on x86-64 and optimized wcscmp, wcslen, strnlen |
857 | on x86-32 and x86-64. | |
99710781 | 858 | Contributed by Liubov Dmitrieva. |
c55fbd1e | 859 | |
d42964a0 | 860 | * Optimized strchr and strrchr for SSE on x86-32. |
693fb948 LD |
861 | Contributed by Liubov Dmitrieva. |
862 | ||
1d3e4b61 UD |
863 | * Optimized memchr, memrchr, rawmemchr, memcmp, wmemcmp, wcschr, wcscpy |
864 | for x86-64 and x86-32. | |
093ecf92 LD |
865 | Contributed by Liubov Dmitrieva. |
866 | ||
c55fbd1e UD |
867 | * New interfaces: scandirat, scandirat64 |
868 | Implemented by Ulrich Drepper. | |
a0f33f99 UD |
869 | |
870 | * Checking versions of FD_SET, FD_CLR, and FD_ISSET added. | |
871 | Implemented by Ulrich Drepper. | |
684ae515 UD |
872 | |
873 | * nscd now also caches the netgroup database. | |
874 | Implemented by Ulrich Drepper. | |
0ac5ae23 UD |
875 | |
876 | * Integrate libm with gcc's -ffinite-math-only option. | |
877 | Implemented by Ulrich Drepper. | |
d9a4d2ab UD |
878 | |
879 | * Lots of generic, 64-bit, and x86-64-specific performance optimizations | |
880 | to math functions. Implemented by Ulrich Drepper. | |
881 | ||
882 | * Optimized strcasecmp and strncasecmp for AVX on x86-64. | |
883 | Implemented by Ulrich Drepper. | |
78239589 UD |
884 | |
885 | * New Linux interfaces: process_vm_readv, process_vm_writev | |
e188ebba UD |
886 | |
887 | * Optimized strcasecmp and strncasecmp for SSSE3 and SSE4.2 on x86-32. | |
888 | Implemented by Ulrich Drepper. | |
a1267ba1 | 889 | |
f0b264f1 AZ |
890 | * Optimized nearbyint and strcasecmp for PPC. |
891 | Implemented by Adhemerval Zanella. | |
2655fd5c | 892 | |
6b64057b | 893 | * New locales: bho_IN, unm_US, es_CU, ta_LK |
e80fab37 | 894 | \f |
dded88cd | 895 | Version 2.14 |
9f94d2ea | 896 | |
50934221 UD |
897 | * The following bugs are resolved with this release: |
898 | ||
553149f6 | 899 | 386, 6420, 7101, 9730, 9732, 9809, 10138, 10149, 10157, 11099, 11257, |
873ca504 | 900 | 11258, 11487, 11532, 11558, 11578, 11634, 11653, 11668, 11697, 11724, |
3cf74f8a | 901 | 11781, 11799, 11820, 11837, 11857, 11884, 11892, 11895, 11901, 11945, |
7ae22829 | 902 | 11947, 11952, 11987, 12052, 12083, 12158, 12178, 12200, 12346, 12350, |
4462fad3 UD |
903 | 12393, 12420, 12432, 12445, 12449, 12453, 12454, 12460, 12469, 12489, |
904 | 12509, 12510, 12511, 12518, 12527, 12541, 12545, 12551, 12582, 12583, | |
905 | 12587, 12597, 12601, 12611, 12625, 12626, 12631, 12650, 12653, 12655, | |
4769ae77 UD |
906 | 12660, 12671, 12681, 12684, 12685, 12711, 12713, 12714, 12717, 12723, |
907 | 12724, 12734, 12738, 12746, 12766, 12775, 12777, 12782, 12788, 12792, | |
f16846a5 | 908 | 12795, 12811, 12813, 12814, 12841 |
50934221 | 909 | |
7b57bfe5 UD |
910 | * The RPC implementation in libc is obsoleted. Old programs keep working |
911 | but new programs cannot be linked with the routines in libc anymore. | |
912 | Programs in need of RPC functionality must be linked against TI-RPC. | |
6b1e7d19 | 913 | The TI-RPC implementation is IPv6 enabled and there are other benefits. |
018b9e36 UD |
914 | |
915 | Visible changes of this change include (obviously) the inability to link | |
a0446976 UD |
916 | programs using RPC functions without referencing the TI-RPC library and the |
917 | removal of the RPC headers from the glibc headers. | |
7b57bfe5 UD |
918 | Implemented by Ulrich Drepper. |
919 | ||
c6489db3 | 920 | * New Linux interfaces: clock_adjtime, name_to_handle_at, open_by_handle_at, |
f1f929d7 | 921 | syncfs, setns, sendmmsg |
83fe108b | 922 | |
72d1dddb | 923 | * New locales: os_RU, bem_ZA, en_ZA, ff_SN, sw_KE, sw_TZ, lb_LU, wae_CH, |
a7b80ed5 | 924 | yue_HK, lij_IT, mhr_RU |
bc469bea UD |
925 | |
926 | * New encodings: CP770, CP771, CP772, CP773, CP774 | |
a9171047 UD |
927 | |
928 | * New program sotruss to trace calls through PLTs | |
929 | Implemented by Ulrich Drepper. | |
7d17596c UD |
930 | |
931 | * The malloc hook implementation is marked deprecated and will be removed | |
932 | from the default implementation in the next version. The design never | |
933 | worked ever since the introduction of threads. Even programs which do | |
934 | not create threads themselves can use multiple threads created internally. | |
9f94d2ea | 935 | \f |
4828935d LM |
936 | Version 2.13 |
937 | ||
ac2b484c UD |
938 | * The following bugs are resolved with this release: |
939 | ||
c30b7ee2 UD |
940 | 3268, 6812, 7066, 10085, 10484, 10563, 10851, 11149, 11155, 11577, 11611, |
941 | 11640, 11655, 11701, 11840, 11856, 11883, 11903, 11904, 11968, 11979, | |
942 | 12005, 12037, 12067, 12077, 12078, 12092, 12093, 12107, 12108, 12113, | |
943 | 12140, 12159, 12167, 12191, 12194, 12201, 12204, 12205, 12207, 12348, | |
944 | 12378, 12394, 12397 | |
ac2b484c | 945 | |
10b3bedc | 946 | * New Linux interfaces: prlimit, prlimit64, fanotify_init, fanotify_mark |
c08fb0d7 | 947 | |
ac2b484c | 948 | * POWER7 optimizations: memset, memcmp, strncmp |
8d50becc | 949 | |
e9f82e0d UD |
950 | * New optimized string functions for x86-64: strnlen (SSE2), |
951 | strcasecmp (SSE2, SSSE3, SSE4.2), strncasecmp (SSE2, SSSE3, SSE4.2) | |
8d50becc | 952 | Implemented by Ulrich Drepper. |
4828935d | 953 | \f |
ee1a7fab UD |
954 | Version 2.12 |
955 | ||
d36b9613 UD |
956 | * The following bugs are resolved with this release: |
957 | ||
2e0fb521 DL |
958 | 3662, 4457, 5553, 10162, 10401, 10414, 10554, 10824, 10864, 10915, |
959 | 10918, 10936, 10939, 10958, 10968, 10969, 10972, 10992, 11000, 11001, | |
960 | 11007, 11010, 11027, 11039, 11040, 11041, 11043, 11046, 11056, 11070, | |
961 | 11093, 11115, 11125, 11126, 11127, 11134, 11141, 11149, 11183, 11184, | |
fc97f36d UD |
962 | 11185, 11186, 11187, 11188, 11189, 11190, 11191, 11192, 11193, 11194, |
963 | 11200, 11230, 11235, 11242, 11254, 11258, 11271, 11272, 11276, 11279, | |
964 | 11287, 11292, 11319, 11332, 11333, 11387, 11389, 11390, 11394, 11397, | |
5ae958d7 | 965 | 11410, 11438, 11449, 11470, 11471, 11520, 11537, 11538, 11571 |
86a4c67f UD |
966 | |
967 | * New interfaces: pthread_getname_np, pthread_setname_np | |
d36b9613 | 968 | |
ee1a7fab UD |
969 | * New Linux interface: recvmmsg |
970 | ||
5e4295fb UD |
971 | * STT_GNU_IFUNC implemented for Sparc by David Miller. |
972 | ||
973 | * The dynamic linker now recognizes supported ABI versions from the | |
974 | EI_ABIVERSION field in the ELF header. | |
975 | Implemented by Ulrich Drepper. | |
976 | ||
71170aa0 UD |
977 | * New NIS mode selector ADJUNCT_AS_SHADOW. The passwd.adjunct.byname table |
978 | will not be used to fill in password fields in the passwd.byname replies. | |
979 | Instead it is used to synthesize the shadow.byname table, should it be | |
980 | missing. This is a useful mode in some installations involving Solaris. | |
981 | Implemented by Ulrich Drepper. | |
982 | ||
d36b9613 | 983 | * New locales: kok_IN, sq_MK, cv_RU |
b50f8e42 UD |
984 | \f |
985 | Version 2.11 | |
986 | ||
d36b9613 UD |
987 | * The following bugs are resolved with this release: |
988 | ||
989 | 3270, 7094, 9924, 9986, 10011, 10085, 10107, 10159, 10162, 10166, 10183, | |
990 | 10195, 10196, 10200, 10203, 10207, 10211, 10213, 10217, 10221, 10229, | |
991 | 10262, 10286, 10312, 10315, 10319, 10349, 10360, 10391, 10402, 10416, | |
992 | 10418, 10422, 10425, 10446, 10448, 10452, 10540, 10553, 10560, 10564, | |
993 | 10609, 10643, 10692, 10713, 10717, 10730, 10731, 10742, 10780, 10784, | |
994 | 10789, 10817, 10823, 10840, 10847 | |
995 | ||
3a83202d UD |
996 | * New interfaces: execvpe, pthread_sigqueue, mkstemps, mkstemps64, mkostemps, |
997 | mkostemps64 | |
3d5243d4 UD |
998 | Implemented by Ulrich Drepper. |
999 | ||
24ab9c76 | 1000 | * Checking version of longjmp added that fails if an uninitialized stack |
b50f8e42 UD |
1001 | frame would be created. Implemented by Ulrich Drepper. |
1002 | ||
b8706f70 UD |
1003 | * STT_GNU_IFUNC is now supported in static executables. |
1004 | Implemented by H.J. Lu. | |
1005 | ||
51a71cf0 UD |
1006 | * STT_GNU_IFUNC implemented for PPC by Alan Modra. |
1007 | ||
0122f28e | 1008 | * New optimized string functions for x86-64: strstr, strcasestr, memcmp, |
9d36a6c4 | 1009 | strcspn, strpbrk, strspn, strcpy, stpcpy, strncpy, strcmp (SSE2, SSE4.2), |
7f3146e7 | 1010 | strncmp (SSE2, SSE4.2), strchr (SSE4.2), strrchr (SSE4.2). |
0122f28e UD |
1011 | Contributed by H.J. Lu. |
1012 | ||
9d36a6c4 | 1013 | strlen, rawmemchr, strcmp (SSSE3), strncmp (SSSE3). |
0122f28e UD |
1014 | Implemented by Ulrich Drepper. |
1015 | ||
9d36a6c4 UD |
1016 | * New optimized string functions for x86: strlen, strcspn, strspn, strpbrk, |
1017 | strstr, strcasestr. | |
1018 | Contributed by H.J. Lu. | |
1019 | ||
1020 | * Support for fma instruction in AVX on x86-64. | |
1021 | Implemented by H.J. Lu and Ulrich Drepper. | |
1022 | ||
0122f28e UD |
1023 | * AVX support in x86-64 auditing support in ld.so. |
1024 | Implemented by H.J. Lu. | |
1025 | ||
1026 | * STB_GNU_UNIQUE support added. | |
1027 | Implemented by Ulrich Drepper. | |
1028 | ||
1029 | * Implement second fallback mode for optimized DNS lookup for even more | |
1030 | broken environments. If two requests from the same port are not | |
1031 | handled correctly close the socket and open a new one before sending | |
1032 | the second request. The 'single-request-reopen' option in /etc/resolv.conf | |
1033 | can be used to select this mode right away, instead of rediscovering the | |
1034 | necessity is every process again. | |
1035 | Implemented by Ulrich Drepper. | |
1036 | ||
9d36a6c4 UD |
1037 | * New resolver flag RES_USE_DNSSEC to enable use of verified lookup. |
1038 | Implemented by Adam Tkac. | |
1039 | ||
1040 | * Optimized iconv conversions for S390x. | |
1041 | Implemented by Andreas Krebbel. | |
1042 | ||
4bc1b896 UD |
1043 | * Using condvars with PI mutexes is now more efficient due to kernel |
1044 | support for requeueing to PI futexes. NPTL support added for x86-64. | |
1045 | Implemented by Ulrich Drepper. | |
1046 | ||
9dd5b8a1 | 1047 | * New locales: ps_AF, my_MM |
f1092afe UD |
1048 | \f |
1049 | Version 2.10 | |
1050 | ||
d36b9613 UD |
1051 | * The following bugs are resolved with this release: |
1052 | ||
1053 | 697, 5381, 5807, 6411, 6545, 7040, 7058, 7067, 7080, 7083, 7095, 7098, | |
1054 | 9677, 9694, 9697, 9701, 9704, 9705, 9706, 9720, 9726, 9730, 9733, 9736, | |
1055 | 9741, 9750, 9753, 9759, 9781, 9791, 9793, 9823, 9833, 9844, 9880, 9881, | |
1056 | 9891, 9893, 9895, 9913, 9916, 9920, 9948, 9955, 9957, 9963, 9985, 10052, | |
1057 | 10069, 10086, 10087, 10090, 10092, 10093, 10100, 10118, 10128 | |
1058 | ||
bb066545 | 1059 | * New interfaces: preadv, preadv64, pwritev, pwritev64, malloc_info |
e109c612 UD |
1060 | Implemented by Ulrich Drepper. |
1061 | ||
425ce2ed | 1062 | * New Linux interfaces: accept4, fallocate, fallocate64. |
e109c612 | 1063 | Implemented by Ulrich Drepper. |
6f5c3117 | 1064 | |
1fdd89a7 | 1065 | * Correct declarations of string function when used in C++ code. This |
735be400 | 1066 | could lead to compile errors for invalid C++ code. |
1fdd89a7 | 1067 | |
6cbe890a UD |
1068 | * XPG7/POSIX 2008 compilation environment. Many GNU-specific functions are |
1069 | now in POSIX. | |
77db439e | 1070 | |
1f04d005 | 1071 | * New POSIX 2008 interface: psiginfo |
6cbe890a | 1072 | Implemented by Ulrich Drepper. |
1f04d005 | 1073 | |
610e67ed UD |
1074 | * New ISO C++1x interfaces: quick_exit, at_quick_exit |
1075 | Implemented by Ulrich Drepper. | |
1076 | ||
878b72c5 UD |
1077 | * Support for selecting between multiple function definitions at runtime |
1078 | using STT_GNU_IFUNC symbols. Implemented by Ulrich Drepper. | |
1079 | ||
e109c612 UD |
1080 | * The libcrypt library can now use the hash function implementations in |
1081 | NSS. Implemented by Ulrich Drepper. | |
1082 | ||
1083 | * The malloc implementation can be compiled to be less memory efficient | |
1084 | but higher performing in multi-threaded programs. | |
1085 | Implemented by Ulrich Drepper. | |
1086 | ||
735be400 | 1087 | * New locales: nan_TW@latin, ks_IN |
878b72c5 | 1088 | |
84aa52d7 | 1089 | * Faster strlen, strchr, strchrnul, strrchr, memchr, and rawmemchr for x86-64. |
9d26efa9 UD |
1090 | Implemented by Ulrich Drepper. |
1091 | ||
1092 | * Extended printf hook support. It is possible to use user-defined types | |
1093 | and extend existing format specifiers. | |
a152f366 UD |
1094 | Implemented by Ulrich Drepper. |
1095 | ||
c7e74e59 UD |
1096 | * Handling for group shadow files has been added. |
1097 | Implemented by Ulrich Drepper. | |
1098 | ||
57be3fd7 UD |
1099 | * DNS IPv4-IPv6 parallel lookup now deals better with broken DNS |
1100 | servers (the case, e.g., for some people using the built-in DNS | |
1101 | server in ADSL modems/routers). There is a once-per-process timeout | |
1102 | in case of a broken server. To avoid it, users can run nscd or put | |
1103 | 'options single-request' in /etc/resolv.conf. | |
1104 | Implemented by Ulrich Drepper. | |
28919a77 | 1105 | \f |
b29899ae UD |
1106 | Version 2.9 |
1107 | ||
d36b9613 UD |
1108 | * The following bugs are resolved with this release: |
1109 | ||
1110 | 3406, 5209, 5210, 5381, 5794, 5814, 5911, 6428, 6438, 6442, 6447, 6461, | |
1111 | 6472, 6505, 6544, 6589, 6612, 6634, 6653, 6654, 6657, 6698, 6712, 6713, | |
1112 | 6719, 6723, 6724, 6740, 6763, 6771, 6790, 6791, 6817, 6824, 6839, 6843, | |
1113 | 6845, 6856, 6857, 6860, 6867, 6875, 6919, 6920, 6942, 6947, 6955, 6966, | |
1114 | 6968, 6974, 6980, 6995, 7008, 7009, 7029 | |
1115 | ||
b29899ae | 1116 | * Unified lookup for getaddrinfo: IPv4 and IPv6 addresses are now looked |
f05ac8f5 UD |
1117 | up at the same time. Implemented by Ulrich Drepper. |
1118 | ||
1119 | * TLS descriptors for LD and GD on x86 and x86-64. | |
1120 | Implemented by Alexandre Oliva. | |
18a74157 UD |
1121 | |
1122 | * getaddrinfo now handles DCCP and UDPlite. | |
1123 | Implemented by Ulrich Drepper. | |
0caca71a UD |
1124 | |
1125 | * New fixed-size conversion macros: htobe16, htole16, be16toh, le16toh, | |
1126 | htobe32, htole32, be32toh, le32toh, htobe64, htole64, be64toh, le64toh. | |
1127 | Implemented by Ulrich Drepper. | |
1128 | ||
1129 | * New implementation of memmem, strstr, and strcasestr which is O(n). | |
1130 | Implemented by Eric Blake. | |
e038616f | 1131 | |
8ec2550e | 1132 | * New Linux interfaces: inotify_init1, dup3, epoll_create1, pipe2 |
e038616f UD |
1133 | |
1134 | * Implement "e" option for popen to open file descriptor with the | |
ebcc1f4d | 1135 | close-on-exec flag set. Implemented by Ulrich Drepper. |
e038616f | 1136 | |
7b3ba2c4 UD |
1137 | * Implement "b" mode for fmemopen. In this mode writes writes don't |
1138 | implicitly add a NUL byte and seeks from the end of the buffer really | |
1139 | use the buffer end, not the string length as the basis. | |
1140 | Implemented by Ulrich Drepper. | |
1141 | ||
e038616f UD |
1142 | * Many functions, exported and internal, now atomically set the close-on-exec |
1143 | flag when run on a sufficiently new kernel. Implemented by Ulrich Drepper. | |
48b22986 | 1144 | |
bf837fa3 UD |
1145 | * Sorting rules for some Indian languages (Kannada, Gurumukhi, Telugu, |
1146 | Sinhala) | |
48b22986 | 1147 | Implemented by Pravin Satpute. |
0a26fc4d UD |
1148 | |
1149 | * New locales: sd_IN, sd_IN@devanagari, ks_IN@devanagari, ht_HT, en_AG, nl_AW. | |
b29899ae | 1150 | \f |
28919a77 UD |
1151 | Version 2.8 |
1152 | ||
d36b9613 UD |
1153 | * The following bugs are resolved with this release: |
1154 | ||
1155 | 2549, 3112, 4314, 4407, 4997, 5012, 5040, 5112, 5204, 5208, 5209, 5220, | |
1156 | 5222, 5224, 5225, 5237, 5238, 5240, 5245, 5277, 5346, 5375, 5378, 5382, | |
1157 | 5424, 5427, 5428, 5435, 5436, 5439, 5441, 5442, 5443, 5451, 5452, 5454, | |
1158 | 5455, 5463, 5464, 5465, 5475, 5477, 5478, 5520, 5541, 5545, 5553, 5600, | |
1159 | 5602, 5607, 5614, 5627, 5628, 5736, 5737, 5741, 5753, 5760, 5762, 5768, | |
1160 | 5774, 5777, 5778, 5779, 5786, 5790, 5818, 5854, 5857, 5903, 5939, 5979, | |
1161 | 5983, 5995, 5998, 6004, 6007, 6020, 6021, 6024, 6040, 6042 | |
1162 | ||
e038616f | 1163 | * New locales: bo_CN, bo_IN, shs_CA. |
b4354cf4 | 1164 | |
77751669 | 1165 | * New encoding: HP-ROMAN9, HP-GREEK8, HP-THAI8, HP-TURKISH8. |
aece054b UD |
1166 | |
1167 | * Sorting rules for some Indian languages (Devanagari and Gujarati). | |
1168 | Implemented by Pravin Satpute. | |
1169 | ||
1170 | * IPV6 addresses in /etc/resolv.conf can now have a scope ID | |
1171 | ||
1172 | * nscd caches now all timeouts for DNS entries | |
1173 | Implemented by Ulrich Drepper. | |
1174 | ||
1175 | * nscd is more efficient and wakes up less often. | |
1176 | Implemented by Ulrich Drepper. | |
1177 | ||
1178 | * More checking functions: asprintf, dprintf, obstack_printf, vasprintf, | |
1179 | vdprintf, and obstack_vprintf. | |
1180 | Implemented by Jakub Jelinek. | |
1181 | ||
1182 | * Faster memset for x86-64. | |
1183 | Implemented by Harsha Jagasia and H.J. Lu. | |
1184 | ||
1185 | * Faster memcpy on x86. | |
1186 | Implemented by Ulrich Drepper. | |
1187 | ||
1188 | * ARG_MAX is not anymore constant on Linux. Use sysconf(_SC_ARG_MAX). | |
1189 | Implemented by Ulrich Drepper. | |
3b32d8a2 UD |
1190 | |
1191 | * Faster sqrt and sqrtf implemention for some PPC variants. | |
d990b282 | 1192 | Implemented by Steven Munroe. |
46c38bd7 | 1193 | \f |
e1db0493 UD |
1194 | Version 2.7 |
1195 | ||
d36b9613 UD |
1196 | * The following bugs are resolved with this release: |
1197 | ||
1198 | 4125, 4126, 4178, 4359, 4407, 4512, 4514, 4525, 4554, 4556, 4557, 4566, | |
1199 | 4582, 4586, 4588, 4599, 4610, 4647, 4702, 4705, 4726, 4745, 4772, 4773, | |
1200 | 4775, 4776, 4792, 4813, 4814, 4816, 4833, 4858, 4860, 4896, 4905, 4925, | |
1201 | 4936, 4937, 4938, 4941, 4946, 4963, 4972, 5010, 5028, 5043, 5058, 5063, | |
1202 | 5071, 5103, 5104, 5112, 5113, 5184, 5186 | |
1203 | ||
e1db0493 UD |
1204 | * More checking functions: fread, fread_unlocked, open*, mq_open. |
1205 | Implemented by Jakub Jelinek and Ulrich Drepper. | |
1206 | ||
1207 | * Extend fortification to C++. Implemented by Jakub Jelinek. | |
1208 | ||
1209 | * Implement 'm' modifier for scanf. Add stricter C99/SUS compliance | |
1210 | by not recognizing 'a' as a modifier when those specs are requested. | |
1211 | Implemented by Jakub Jelinek. | |
1212 | ||
1213 | * PPC optimizations to math and string functions. | |
1214 | Implemented by Steven Munroe. | |
1215 | ||
28919a77 | 1216 | * New interfaces: mkostemp, mkostemp64. Like mkstemp* but allow additional |
e1db0493 UD |
1217 | options to be passed. Implemented by Ulrich Drepper. |
1218 | ||
1219 | * More CPU set manipulation functions. Implemented by Ulrich Drepper. | |
1220 | ||
0304f168 UD |
1221 | * New Linux interfaces: signalfd, eventfd, eventfd_read, and eventfd_write. |
1222 | Implemented by Ulrich Drepper. | |
1223 | ||
e1db0493 UD |
1224 | * Handle private futexes in the NPTL implementation. |
1225 | Implemented by Jakub Jelinek and Ulrich Drepper. | |
1226 | ||
1227 | * Add support for O_CLOEXEC. Implement in Hurd. Use throughout libc. | |
1228 | Implemented by Roland McGrath and Ulrich Drepper. | |
1229 | ||
1230 | * Linux/x86-64 vDSO support. Implemented by Ulrich Drepper. | |
1231 | ||
1232 | * SHA-256 and SHA-512 based password encryption. | |
1233 | Implemented by Ulrich Drepper. | |
0304f168 UD |
1234 | |
1235 | * New locales: ber_DZ, ber_MA, en_NG, fil_PH, fur_IT, fy_DE, ha_NG, ig_NG, | |
1236 | ik_CA, iu_CA, li_BE, li_NL, nds_DE, nds_NL, pap_AN, sc_IT, tk_TM, ug_CN, | |
1237 | yo_NG. | |
1238 | ||
1239 | + New iconv modules: MAC-CENTRALEUROPE, ISO-8859-9E, KOI8-RU. | |
1240 | Implemented by Ulrich Drepper. | |
e1db0493 | 1241 | \f |
11bf311e | 1242 | Version 2.6 |
46c38bd7 | 1243 | |
d36b9613 UD |
1244 | * The following bugs are resolved with this release: |
1245 | ||
1246 | 3156, 3213, 3285, 3291, 3306, 3313, 3320, 3322, 3325, 3326, 3334, 3348, | |
1247 | 3352, 3363, 3369, 3426, 3427, 3429, 3451, 3458, 3465, 3480, 3483, 3493, | |
1248 | 3514, 3515, 3559, 3632, 3664, 3673, 3674, 3745, 3747, 3818, 3840, 3842, | |
1249 | 3851, 3855, 3884, 3885, 3902, 3905, 3919, 3944, 3954, 3955, 3957, 3991, | |
1250 | 3995, 3996, 4024, 4040, 4069, 4070, 4074, 4076, 4096, 4101, 4102, 4114, | |
1251 | 4130, 4131, 4181, 4276, 4306, 4342, 4344, 4349, 4364, 4368, 4381, 4392, | |
1252 | 4403, 4405, 4406, 4411, 4438, 4439, 4455, 4456, 4465, 4512, 4514, 4586, | |
1253 | 4702, 4858 | |
1254 | ||
bce20b9a | 1255 | * New Linux interfaces: epoll_pwait, sched_getcpu. |
46c38bd7 | 1256 | |
4a44ce79 UD |
1257 | * New generic interfaces: strerror_l. |
1258 | ||
b21fa963 | 1259 | * nscd can now cache the services database. Implemented by Ulrich Drepper. |
3af48b5b UD |
1260 | \f |
1261 | Version 2.5 | |
1262 | ||
d36b9613 UD |
1263 | * The following bugs are resolved with this release: |
1264 | ||
1265 | 39, 68, 192, 352, 388, 531, 935, 1006, 1201, 1203, 1386, 1782, 1783, 1784, | |
1266 | 1785, 1786, 1787, 1951, 1974, 1996, 2072, 2098, 2125, 2134, 2158, 2182, | |
1267 | 2349, 2376, 2386, 2389, 2415, 2418, 2420, 2423, 2450, 2451, 2466, 2472, | |
1268 | 2473, 2477, 2498, 2499, 2501, 2502, 2505, 2507, 2508, 2509, 2517, 2526, | |
1269 | 2569, 2571, 2592, 2611, 2625, 2632, 2644, 2662, 2680, 2683, 2684, 2693, | |
1270 | 2695, 2703, 2734, 2751, 2764, 2766, 2775, 2792, 2821, 2823, 2832, 2841, | |
1271 | 2843, 2883, 2892, 2908, 2914, 2926, 2961, 2978, 2980, 2987, 2997, 2998, | |
1272 | 3013, 3018, 3034, 3040, 3044, 3123, 3124, 3137, 3138, 3143, 3155, 3189, | |
1273 | 3225, 3251, 3252, 3253, 3273 | |
1274 | ||
3af48b5b | 1275 | * For Linux, the sorting of addresses returned by getaddrinfo now also |
457b559e UD |
1276 | handles rules 3, 4, and 7 from RFC 3484. I.e., all rules are handled. |
1277 | Implemented by Ulrich Drepper. | |
3af48b5b | 1278 | |
3142b1ac UD |
1279 | * Allow system admin to configure getaddrinfo with the /etc/gai.conf file. |
1280 | Implemented by Ulrich Drepper. | |
1281 | ||
871b9158 | 1282 | * New Linux interfaces: splice, tee, sync_file_range, vmsplice. |
1e528c6e UD |
1283 | |
1284 | * New iconv module for MIK. Contributed by Alexander Shopov. | |
3af48b5b | 1285 | |
3142b1ac UD |
1286 | * For sites with broken group and/or passwd database, the auto-propagate |
1287 | option of nscd can prevent creating ID lookup entries from the results | |
1288 | of a name lookup and vice versa. This usually is no problem but some | |
457b559e | 1289 | site might have problems with the default behavior. |
3142b1ac UD |
1290 | Implemented by Ulrich Drepper. |
1291 | ||
07bfff20 | 1292 | * Iterating over entire database in NIS can be slow. With the |
3142b1ac UD |
1293 | SETENT_BATCH_READ option in /etc/default/nss a system admin can decide |
1294 | to trade time for memory. The entire database will be read at once. | |
1295 | Implemented by Ulrich Drepper. | |
1296 | ||
07bfff20 UD |
1297 | * The interfaces introduced in RFC 3542 have been implemented by |
1298 | Ulrich Drepper. | |
1299 | ||
871b9158 UD |
1300 | * Support for the new ELF hash table format was added by Ulrich Drepper. |
1301 | ||
d5ba53f9 UD |
1302 | * Support for priority inheritance mutexes added by Jakub Jelinek and |
1303 | Ulrich Drepper. | |
1304 | ||
ad2a3c07 UD |
1305 | * Support for priority protected mutexes added by Jakub Jelinek. |
1306 | ||
88cc61e8 UD |
1307 | * New locales: nr_ZA, pa_PK, ca_AD, ca_FR, ca_IT, el_CY, tr_CY, as_IN, |
1308 | or_IN, csb_PL, fy_NL, sr_ME. | |
2e92188d | 1309 | \f |
137e6462 UD |
1310 | Version 2.4 |
1311 | ||
1312 | * More overflow detection functions. | |
1313 | ||
1314 | * New iconv converters for IBM1025, IBM1122, IBM1137, IBM1153, | |
1315 | IBM1154, IBM1155, IBM1156, IBM1157, and IBM1158 contributed by Jiro Sekiba. | |
1aa4e40a | 1316 | |
4973cbe5 UD |
1317 | More converters for IBM803, IBM901, IBM902, IBM921, IBM1008, IBM1097, |
1318 | IBM1112, IBM1123, IBM1130, IBM1140, IBM1141, IBM1142, IBM1143, IBM1144, | |
1319 | IBM1145, IBM1146, IBM1147, IBM1148, IBM1149, IBM1166, IBM1167, IBM4517, | |
1320 | IBM4899, IBM4909, IBM4971, IBM5347, IBM9030, IBM9066, IBM9448, IBM12712, | |
1321 | IBM16804, IBM1364, IBM1371, IBM1388, IBM1390, and IBM1399 contributed | |
1322 | by Masahide Washizawa. | |
1323 | ||
1aa4e40a UD |
1324 | * It is now possible to install audit libraries for the dynamic linker using |
1325 | LD_AUDIT. Implemented by Ulrich Drepper. | |
da0eaa47 RM |
1326 | |
1327 | * The LinuxThreads add-on, providing pthreads on Linux 2.4 kernels, is no | |
1328 | longer supported. The new NPTL implementation requires Linux 2.6 kernels. | |
1329 | For a libc and libpthread that works well on Linux 2.4 kernels, we | |
1330 | recommend using the stable 2.3 branch. | |
4973cbe5 | 1331 | |
35129bc0 RM |
1332 | * The new function open_wmemstream acts like open_memstream, |
1333 | but uses a wchar_t wide character buffer. | |
1334 | ||
1335 | * The new function ppoll is an improved version of poll, similar to pselect. | |
1336 | ||
1337 | * New interfaces: fdopendir, openat, fstatat, fchmodat, fchownat, | |
1338 | futimesat, faccessat, mkdirat, mkfifoat, mknodat, | |
1339 | renameat, unlinkat, linkat, symlinkat, readlinkat. | |
1340 | ||
1341 | * New Linux kernel system calls: unshare, | |
1342 | inotify_init, inotify_add_watch, inotify_rm_watch. | |
1343 | ||
1344 | * The euidaccess function is now also known by the alias eaccess, | |
1345 | for compatibility with some other systems. | |
1346 | ||
1347 | * Timezone data updated to 2006b version. | |
137e6462 | 1348 | \f |
e6a9beca RM |
1349 | Version 2.3.6 |
1350 | ||
1351 | * The following bugs are resolved with this release: | |
1352 | ||
1353 | 38, 253, 549, 622, 653, 721, 758, 851, 877, 915, 934, 955, 961, | |
1354 | 1016, 1037, 1076, 1079, 1080, 1081, 1082, 1083, 1084, 1085, 1086, | |
1355 | 1087, 1088, 1090, 1091, 1092, 1093, 1094, 1095, 1096, 1097, 1098, | |
1356 | 1099, 1100, 1101, 1102, 1103, 1104, 1105, 1106, 1107, 1108, 1109, | |
1357 | 1110, 1111, 1112, 1113, 1125, 1137, 1138, 1249, 1250, 1251, 1252, | |
1358 | 1253, 1254, 1350, 1358, 1394, 1438, 1498, 1534 | |
1359 | ||
1360 | Visit <http://sources.redhat.com/bugzilla/> for the details of each bug. | |
1361 | ||
1362 | * As of this release, GCC 4 can be used to compile the C Library. | |
1363 | ||
1364 | * Timezone data updated to 2005m version. | |
1365 | \f | |
da232bf9 RM |
1366 | Version 2.3.5 |
1367 | ||
1368 | * The following bugs are resolved with this release: | |
1369 | ||
1370 | 284, 592, 602, 626, 633, 640, 650, 661, 671, 681, 693, 700, 710, 719, | |
1371 | 722, 723, 725, 726, 727, 728, 729, 730, 731, 732, 733, 734, 735, 736, | |
1372 | 737, 738, 739, 740, 741, 742, 743, 744, 745, 765, 767, 768, 769, 776, | |
1373 | 777, 787, 821, 822, 823, 825 | |
1374 | ||
1375 | Visit <http://sources.redhat.com/bugzilla/> for the details of each bug. | |
1376 | \f | |
a55bda85 UD |
1377 | Version 2.3.4 |
1378 | ||
1379 | * Support for RFC 3678. Real implementations exist only for Linux so far. | |
1380 | Implemented by Ulrich Drepper. | |
8a1f658b UD |
1381 | |
1382 | * nscd can now cache entries persistently. Expiring entries are reloaded. | |
1383 | For speedups the cache can be shared in memory with client processes. | |
1384 | Implemented by Ulrich Drepper. | |
1385 | ||
1386 | * nscd can now perform SELinux checks. | |
1387 | Implemented by Matthew Rickard <mjricka@epoch.ncsc.mil>. | |
1388 | ||
0325dd20 | 1389 | * getaddrinfo queries are now cached. Canonical name lookup is performed |
8a1f658b UD |
1390 | efficiently. |
1391 | Implemented by Ulrich Drepper. | |
1392 | ||
1393 | * The nothrow function attribute is used when headers are used by gcc when | |
1394 | compiling C code. This can avoid significant amounts of exception | |
1395 | handling data. | |
1396 | ||
1397 | * The malloc functions perform more error checking and are stricter when | |
1398 | it comes to reacting on errors. The default action is to terminate | |
0325dd20 | 1399 | the process after showing an error message. Implemented by Ulrich Drepper. |
8a1f658b UD |
1400 | |
1401 | * Reverse lookups of IPv6 addresses does not use bit string or .ip6.int | |
0325dd20 UD |
1402 | lookups anymore unless explicitly requested. Implemented by Ulrich Drepper. |
1403 | ||
1404 | * Namespaces in ld.so are implemented. DSOs can be loaded in separate | |
1405 | namespaces using the new function dlmopen(). This feature is of course, | |
1406 | like most other dynamic loading functionality, not available in statically | |
1407 | linked applications. Implemented by Ulrich Drepper. | |
1408 | ||
1409 | * Low-overhead boundary checking variants of string and some stdio functions | |
1410 | were added. These are to be used in conjunction with a gcc patch by | |
1411 | Jakub Jelinek which adds calls to these functions if possible. | |
720817e7 RM |
1412 | Implemented by Jakub Jelinek and Ulrich Drepper. |
1413 | ||
1414 | * Old code for several operating systems and machine architectures that | |
1415 | have not been in working condition in a long time have been removed from | |
1416 | the main source tree maintained by the GNU C Library's maintainers. | |
1417 | These files are now reside in the separate `ports' source module | |
1418 | that is usable as an add-on when building the library. | |
a55bda85 | 1419 | \f |
3a601d31 RM |
1420 | Version 2.3.3 |
1421 | ||
45e4762c RM |
1422 | * New functions `dladdr1' and `dlinfo' in <dlfcn.h> provide more ways to |
1423 | interrogate the dynamic linker, compatible with the Solaris interface. | |
1424 | ||
3a601d31 RM |
1425 | * ELF thread-local storage support (TLS) now works on PowerPC and PowerPC64; |
1426 | implemented by Paul Mackerras, Steven Munroe, and Roland McGrath. | |
925c3c5c | 1427 | |
69be6aaf | 1428 | * getifaddrs now uses the netlink interface on Linux to get its information. |
925c3c5c UD |
1429 | Implemented by Thorsten Kukuk. |
1430 | ||
1431 | * getaddrinfo now implements AI_V4MAPPED, AI_ALL, and AI_ADDRCONF. | |
1432 | Implemented by Ulrich Drepper. | |
97fd3a30 UD |
1433 | |
1434 | * support for non-executable stacks on x86 has been added. Changes mostly | |
1435 | by Roland McGrath. | |
1436 | ||
c5af724c | 1437 | * regex is now much faster for multibyte locales. Changes by Jakub Jelinek |
97fd3a30 UD |
1438 | and Ulrich Drepper. |
1439 | ||
1440 | * getaddrinfo now performs destination address selection according to | |
1441 | RFC 3484. | |
3a601d31 | 1442 | \f |
747bf98e RM |
1443 | Version 2.3.2 |
1444 | ||
f87277f2 RM |
1445 | * Thread-safe interfaces for many functions that access locale data |
1446 | were added in version 2.3, but these features were omitted from NEWS. | |
1447 | Many functions have variants with an `_l' suffix that take a `locale_t' | |
1448 | object as a parameter rather than consulting the current locale. | |
1449 | The new functions `newlocale', `duplocale', and `freelocale' in <locale.h> | |
1450 | create and maintain `locale_t' objects. Additionally, the new function | |
1451 | `uselocale' sets "the current locale" (as used by functions not so | |
1452 | parameterized) set for an individual thread. These features were added | |
1453 | in version 2.3, implemented by Ulrich Drepper and Roland McGrath. | |
1454 | ||
747bf98e RM |
1455 | * The functions getresuid, getresgid, setresuid, and setresgid, which |
1456 | have long been available on Linux, are now declared in <unistd.h> | |
1457 | and are now also available on the Hurd. | |
1458 | ||
1459 | * ELF thread-local storage support (TLS) now works on x86-64. | |
d62507dd RM |
1460 | |
1461 | * The new dynamic string token $LIB is expanded in shared library names. | |
1462 | This normally expands to lib, but on some 64-bit platforms to lib64 instead. | |
52a16e58 | 1463 | |
f87277f2 RM |
1464 | * Aldy Hernandez contributed complete software floating point support for |
1465 | PowerPC machines with no FPU. | |
1466 | ||
52a16e58 | 1467 | * fexecve is implemented on Linux. |
f9ad060c | 1468 | |
f87277f2 RM |
1469 | * The `btowc' function should work at least twice as fast due to |
1470 | specialized callbacks in the iconv modules. Implemented by Bruno Haible. | |
9ef0a840 UD |
1471 | |
1472 | * With approriate thread add-ons cancelable functions are now implemented | |
1473 | in libc.so as well. No need to call the function in libpthread. This | |
1474 | change allowed to finally disable the incorrect and expensive handling | |
1475 | of weak definition in ld.so. | |
1476 | ||
1477 | * Yet more PLT entries in libc.so have been removed. We finally arrived | |
1478 | at the bare minimum. Startup times improved appropriately. | |
1479 | ||
1480 | * Support for the new Linux/x86 system call interface was added. The | |
1481 | AT_SYSINFO auxiliary vector entry is recognized and handled. | |
747bf98e | 1482 | \f |
03a2c647 | 1483 | Version 2.3 |
37fb1084 | 1484 | |
03a2c647 UD |
1485 | * Masahide Washizawa contributed iconv modules for IBM1163 and IBM1164 |
1486 | charsets. | |
1487 | ||
1488 | * iconv (the program and the interface) now accepts empty names (excluding | |
1489 | options like //TRANSLIT) to mean "use charset of current locale". | |
47e8b443 | 1490 | |
bb0ec5bd | 1491 | * localedef can now transliterate characters in strings which are not in |
47e8b443 | 1492 | the provided charmap. The information from the input locale is used. |
c17f665b UD |
1493 | |
1494 | * Prelinking support was added for ELF targets. This requires additional | |
1495 | tools and recent versions of the GNU binutils. Contributed by Jakub Jelinek. | |
8e57fc70 | 1496 | |
bb0ec5bd | 1497 | * Read-only stdio streams now use mmap to speed up operation by eliminating |
91e6367e UD |
1498 | copying and buffer underflows. To use add 'm' to the mode string of |
1499 | the fopen/fdopen/freopen call. Implemented by Ulrich Drepper. | |
207b66ce UD |
1500 | |
1501 | * The malloc functions were completely rewritten by Wolfram Gloger based | |
1502 | on Doug Lea's malloc-2.7.0.c. | |
3b0bdc72 | 1503 | |
bb0ec5bd | 1504 | * Isamu Hasegawa contributed a completely new and POSIX-conformant |
3b0bdc72 | 1505 | implementation of regex. |
02779eaa UD |
1506 | |
1507 | * Bruno Haible upgraded the iconv and locale implementation to support | |
1508 | Unicode 3.2. | |
be45f421 | 1509 | |
bb0ec5bd RM |
1510 | * Contents of the LC_* and LANG environment variables in the CEN style are |
1511 | not recognized anymore. It never was used. Change by Ulrich Drepper. | |
be45f421 | 1512 | |
bb0ec5bd RM |
1513 | * The runtime (ld.so, libc, libpthread for Linux) now can handle the ELF |
1514 | thread-local storage (TLS) ABI on some platforms. | |
1515 | Changes by Ulrich Drepper. SH support by Kaz Kojima. | |
be45f421 UD |
1516 | |
1517 | * Bruno Haible contributed iconv converters for ISO-2022-JP-3, SHIFT JIS-X0213, | |
f87277f2 | 1518 | EUC-JISX0213, and TSCII. |
a753ffb2 RM |
1519 | |
1520 | * New header <ifaddrs.h> with functions `getifaddrs' and `freeifaddrs': | |
1521 | BSD-compatible interface for getting all network interface addresses. | |
1522 | Implementation for IPv4 by Roland McGrath. | |
6a9340b5 UD |
1523 | |
1524 | * Loading of locale data is faster due to the introduction of a locale | |
1525 | archive. Implemented by Roland McGrath and Ulrich Drepper. | |
dd4f2115 UD |
1526 | |
1527 | * Startup times are significantly reduced by not using exported functions | |
1528 | inside the library itself. Changes by Jakub Jelinek, Roland McGrath, | |
1529 | and Ulrich Drepper. | |
c843e065 RM |
1530 | |
1531 | * Steven Munroe contributed a port to PowerPC64/Linux. | |
1532 | \f | |
45061a15 RM |
1533 | Version 2.2.6 |
1534 | ||
1535 | * The Hurd now uses the GNU libio implementation of stdio rather than the | |
1536 | old GNU stdio implementation, and uses a new ABI (libc.so.0.3). | |
1537 | ||
1538 | * The Hurd on x86 now has the `ioperm' function and <sys/io.h> header file | |
1539 | with the same behavior as the Linux system call of the same name. | |
03a2c647 | 1540 | \f |
a8ae31c2 UD |
1541 | Version 2.2.5 |
1542 | ||
76321a25 AJ |
1543 | * Stephen Moshier implemented log2, log10, powl and cbrtl for the |
1544 | 128-bit long double format. | |
a8ae31c2 | 1545 | |
557a9213 UD |
1546 | * Masahide Washizawa contributed iconv modules for IBM1132, IBM1133, IBM1160, |
1547 | IBM1161, and IBM1162 charsets. | |
a8ae31c2 | 1548 | |
ad2e4f18 | 1549 | * Andreas Jaeger contributed a port to x86-64/Linux. |
a8ae31c2 | 1550 | |
7d0c5823 RM |
1551 | * Peter Bruin contributed a port to PowerPC/Hurd. |
1552 | ||
a8ae31c2 UD |
1553 | * libc functions using I/O streams now can handle wide-oriented streams |
1554 | as well. | |
1555 | ||
45061a15 RM |
1556 | * optimizations in the dynamic linker. Binaries created by recent binutils |
1557 | versions start up quicker due to reduced time spent on relocations. | |
8e57fc70 UD |
1558 | |
1559 | * Support for use of gcc3 added by Jakub Jelinek and HJ Lu. | |
7d0c5823 | 1560 | \f |
33996419 AJ |
1561 | Version 2.2.4 |
1562 | ||
2995f70e | 1563 | * Stephen Moshier implemented cosh, expm1, log1p, acos, sinh, tanh, |
aff17a50 | 1564 | asinh, atanh, j0 for the 128-bit long double format. |
8fee1bb0 UD |
1565 | |
1566 | * Bruno Haible updated all the code handling Unicode in some form to | |
1567 | support Unicode 3.1. | |
86dbe05e UD |
1568 | |
1569 | * Speed of regex for single-byte locales is back to previous levels. | |
1570 | Patch by Isamu Hasegawa. | |
045fcd26 | 1571 | |
69d5f925 | 1572 | * Alpha, SPARC, and IA-64 now also using floating stacks. |
045fcd26 | 1573 | |
69d5f925 | 1574 | * Startup time of internationalized applications greatly improved through |
045fcd26 UD |
1575 | iconv cache. Use iconvconfig to generate the cache file. |
1576 | Contributed by Ulrich Drepper. | |
1577 | ||
1578 | * The IA-64 specific part of ld.so was rewritten to eliminate some pretty | |
1579 | severe performance problems. Patch by David Mosberger. | |
1580 | ||
1581 | * The Hurd port got a lot more functionality like AIO, various stdio | |
1582 | extensions, etc. Mainly done by Roland McGrath. | |
129d706d UD |
1583 | |
1584 | * mtrace can now lookup symbols in shared libraries. | |
33996419 | 1585 | \f |
2ace5721 UD |
1586 | Version 2.2.3 |
1587 | ||
1746f2b0 | 1588 | * Intel's IA-64 math library is largely integrated. It provides fast and |
2ace5721 UD |
1589 | accurate implementatations for most basic and standard math functions |
1590 | in float, double, and long double format. | |
1591 | ||
f128331c | 1592 | * Stephen Moshier implemented j0, j1, jn, y0, y1, yn, lgamma, erf, erfc, |
b8750342 UD |
1593 | and asin for the 96-bit long double format and asin, log, tan for the |
1594 | 128-bit long double format. | |
07f951e4 | 1595 | |
e4d82761 UD |
1596 | * The beginning of a last-bit accurate math library by IBM Haifa were added. |
1597 | The basic double functions exist today. Contributed by Abraham Ziv | |
1598 | <ziv@il.ibm.com>, Moshe Olshansky <olshansk@il.ibm.com>, Ealan Henis | |
1599 | <ealan@il.ibm.com>, and Anna Reitman <reitman@il.ibm.com>. | |
1600 | ||
2ace5721 UD |
1601 | * An asynchronous name lookup library was added. The interface is designed |
1602 | after POSIX AIO. The proposal was circulated beforehand to get comments. | |
1603 | No negative ones came in. Implemented by Ulrich Drepper. | |
b8a8413c UD |
1604 | |
1605 | * Port to S390/64bit contributed by Martin Schwidefsky | |
1606 | <schwidefsky@de.ibm.com>. | |
a66f0958 UD |
1607 | |
1608 | * David Mosberger <davidm@hpl.hp.com> implemented the setcontext family | |
1609 | of functions for Linux/IA-64. | |
481b550f UD |
1610 | |
1611 | * The RPC code is now thread safe. Threads can now use the same service | |
1612 | of different services at the same time. Patch by Eric Norum | |
1613 | <eric.norum@usask.ca> with some help by Ulrich Drepper. | |
f128331c UD |
1614 | |
1615 | * Martin Schwidefsky <schwidefsky@de.ibm.com> implemented the setcontext | |
1616 | family of functions for Linux/S390. | |
232fdf8c UD |
1617 | |
1618 | * Ulrich Drepper <drepper@redhat.com> implemented the setcontext family | |
1619 | of functions for Linux/x86. | |
eacde9d0 UD |
1620 | |
1621 | * Port to Linux/CRIS contributed by Axis Communications. | |
2ace5721 | 1622 | \f |
306eeae5 UD |
1623 | Version 2.2.2 |
1624 | ||
464d97ec | 1625 | * Lots of headers were cleaned up. Using the tool in the conform/ subdir |
306eeae5 UD |
1626 | we can now check for namespace violations and missing declarations. The |
1627 | result is that almost all headers are now Unix-compliant (as defined in | |
1628 | the upcoming XPG6). The negative side is that some programs might need | |
1629 | corrections, too, if they depend on the incorrect form of the headers in | |
1630 | previous versions which defined too many symbols and included too many | |
1631 | other headers. | |
464d97ec UD |
1632 | |
1633 | * regex now handles multibyte character sets correctly. | |
1634 | Contributed by Isamu Hasegawa <isamu@yamato.ibm.com>. | |
1635 | ||
1636 | * iconv (the program) does now conform to the upcoming XPG6 and handles | |
1637 | charmaps. Instead of the charset names the path of charmaps can be | |
1638 | provided and the conversion happens based on this data. | |
1639 | Contributed by Ulrich Drepper. | |
1640 | ||
1641 | * The locale program now provides detailed information about the installed | |
1642 | locales. While | |
1643 | ||
1644 | locale -a | |
1645 | ||
1646 | only lists the names of the supported locales | |
1647 | ||
1648 | locale -a --verbose | |
1649 | ||
1650 | provides details such as country, language, and codeset name. | |
1651 | Contributed by Ulrich Drepper. | |
306eeae5 | 1652 | \f |
d2defdc4 UD |
1653 | Version 2.2.1 |
1654 | ||
1655 | * The gencat program now parses the input file according to the charset | |
1656 | selected by the LC_CTYPE category. This is important for stateful | |
1657 | character sets. To make generating catalogs easier there is a way | |
1658 | to overwrite the charset selected by the locale: before the first | |
1659 | message or $ quote line the catalog can contain a line like | |
1660 | ||
1661 | $ codeset=ISO-8859-2 | |
1662 | ||
1663 | to select the charset (ISO-8859-2 in this case). | |
1664 | ||
1665 | Implemented by Shinya Hanataka and Ulrich Drepper. | |
aea6353a UD |
1666 | |
1667 | * New codeset conversion modules: IBM-922 (Estonia PC codeset), | |
1668 | IBM-1124 (Ukraine PC codeset), IBM-1129 (Vietnamese PC codeset). | |
1669 | Contributed by Masahide Washizawa <washi@jp.ibm.com>. | |
234669e2 UD |
1670 | |
1671 | * Optimized string functions for Alpha ev6 and ev67 by Richard Henderson | |
1672 | <rth@redhat.com> and Rick Gorton <rick.gorton@alpha-processor.com>. | |
1673 | ||
1674 | * The LANGUAGE environment variable is now ignored unless the locale is | |
1675 | changed from the default "C" locale. | |
1676 | ||
1677 | * The usual bug fixes. | |
d2defdc4 | 1678 | \f |
2e92188d UD |
1679 | Version 2.2 |
1680 | ||
08a2e4a0 GM |
1681 | * Greg McGary added runtime support for bounds checking using gcc's |
1682 | new -fbounded-pointers option. ix86 target is complete. PowerPC | |
1683 | is in progress. | |
1684 | ||
2e92188d UD |
1685 | * Thorsten Kukuk added secure mode support to nscd. |
1686 | ||
793bd4d9 | 1687 | * The Berkeley db libraries have been removed. |
2e92188d | 1688 | |
47b853e8 UD |
1689 | Related, the nss_db module is now in a separate package since it |
1690 | obviously requires a database library being available. | |
1691 | ||
0013b2b1 UD |
1692 | * Wide character I/O streams implemented by Ulrich Drepper. |
1693 | ||
abbffdf9 | 1694 | * Functions from the extended socket API added by Ulrich Drepper. |
01c771d0 | 1695 | |
6e8afc1c UD |
1696 | * Functions feenableexcept and fedisableexcept to control the |
1697 | behaviour of individual exceptions have been added by Andreas Jaeger. | |
1698 | ||
591e1ffb UD |
1699 | * ldconfig program added by Andreas Jaeger and Jakub Jelinek. |
1700 | ||
d3436b3c UD |
1701 | * The resolver code has been updated from bind 8.2.3-T5B which supports |
1702 | threads. The integration was done by Andreas Jaeger, Adam D. Bradley, | |
1703 | and Mark Kettenis. | |
2588068b UD |
1704 | |
1705 | This change could in some situations effect backward compatibility. Since | |
1706 | now `_res' is a thread-local instead of a global variable, modifying it | |
1707 | in one thread does not have any effect in other threads. | |
66ac0abe | 1708 | |
a00c3ca9 | 1709 | The resolver library was also extended to allow IPv6 as the transport |
d3436b3c UD |
1710 | protocol for the requests. This work was done by Stig Venaas. |
1711 | ||
1c5d4617 UD |
1712 | * Compatibility code for K&R C compilers has been removed from the |
1713 | header files. A ISO C compiler is needed to use the library | |
1714 | (conforming to either C89 or C99 standard). | |
1715 | ||
abbffdf9 UD |
1716 | * Complete rewrite of the localedef program to support multibyte character |
1717 | sets. Implement handling of ISO 14651 and ISO 14652. Rewrite strcoll, | |
1718 | strxfrm, wcscoll, and wcsxfrm functions. Make isw*() functions work. | |
1719 | Implemented by Ulrich Drepper. | |
1720 | ||
8f3f1e09 UD |
1721 | Bruno Haible significantly improved the generation and use of the data |
1722 | structures for the wide character tables. | |
1723 | ||
abbffdf9 UD |
1724 | * Plural handling in gettext implemented by Ulrich Drepper. |
1725 | ||
69173865 UD |
1726 | * The utmp daemon has been removed. |
1727 | ||
1728 | * The port to MIPS-Linux has been finished by Andreas Jaeger. | |
1729 | ||
37fb8add UD |
1730 | * A port to Hitachi SH3 and SH4 has been contributed by Kazumoto Kojima |
1731 | and Yutaka Niibe. | |
1732 | ||
594cee6c UD |
1733 | * POSIX clocks and timers implemented by Kaz Kylheku and Ulrich Drepper. |
1734 | ||
40c4c9b5 UD |
1735 | * POSIX barriers implemented by Kaz Kylheku. |
1736 | ||
594cee6c UD |
1737 | * POSIX spawn function family implemented by Ulrich Drepper. |
1738 | ||
1739 | * POSIX spinlocks are now available. | |
1740 | ||
40c4c9b5 UD |
1741 | * Timed wait functions for mutex, rwlock, and semaphores are implemented. |
1742 | ||
8f3f1e09 UD |
1743 | * the configure option --enable-kernel=X.Y.Z allows to strip out |
1744 | compatibility for kernel versions before X.Y.Z. This is currently only | |
1745 | implemented for Linux. | |
1746 | ||
3107c0c5 UD |
1747 | * the sockaddr_in6 structure changed. The IPv6 working group added a new |
1748 | field sin6_scope_id. This means that all programs using IPv6 should be | |
1749 | recompiled. Don't expect binary compatibility with previous glibc | |
1750 | versions. | |
1751 | ||
d2830ba4 UD |
1752 | * various conversion modules for IBM character sets contributed by |
1753 | Masahide Washizawa. | |
1754 | ||
8f3f1e09 | 1755 | * IA-64 port by Jes Sorensen and HJ Lu. |
6f2a8167 UD |
1756 | \f |
1757 | Version 2.1.3 | |
1758 | ||
1759 | * bug fixes | |
1760 | ||
01c771d0 UD |
1761 | \f |
1762 | Version 2.1.2 | |
1763 | ||
1764 | * bug fixes | |
1765 | ||
28f540f4 | 1766 | \f |
e518937a UD |
1767 | Version 2.1.1 |
1768 | ||
27995311 UD |
1769 | * New ISO C 9x function _Exit, imaxabs, and imaxdiv are added. |
1770 | ||
16b0f634 UD |
1771 | * New xdr functions are added; some rpc functions are now 64bit clean. |
1772 | ||
407d26b7 | 1773 | * Fixed a number of bugs and memory leaks (especially in NIS+ code). |
16b0f634 UD |
1774 | |
1775 | * Fixed known incompatibilities with glibc 2.0. | |
1776 | ||
407d26b7 | 1777 | * New functions lock64, strchrnul, rawmemchr, getutmp and getutmpx. |
16b0f634 | 1778 | |
407d26b7 | 1779 | * Optimized a number of functions (especially the ELF dynamic loader). |
16b0f634 UD |
1780 | |
1781 | * Update timezone data files. | |
27995311 | 1782 | |
554b8800 UD |
1783 | * lots of charmaps corrections |
1784 | ||
1785 | * some new locale definitions and charmaps | |
1786 | ||
e518937a | 1787 | \f |
c84142e8 UD |
1788 | Version 2.1 |
1789 | ||
da2d1bc5 UD |
1790 | * Richard Henderson corrected size of struct timeval on Linux/Alpha to |
1791 | conform to POSIX member type requirements. Symbol versions have been | |
1792 | adjusted as needed within the library, and for direct use by applications, | |
1793 | but there is potential for problems if third-party libraries use | |
1794 | struct timeval as part of their interface. This does not present | |
1795 | a problem for X and other "essential" system libraries. | |
1796 | ||
c84142e8 | 1797 | * An additional locale model to support C++ Standard Library locale |
1fb05e3d | 1798 | model and probably more was implemented by Ulrich Drepper. |
c84142e8 | 1799 | |
1fb05e3d | 1800 | * Eric Youngdale and Ulrich Drepper implemented versioning of objects on |
c84142e8 UD |
1801 | symbol level. |
1802 | ||
1803 | * Miles Bader provided the `argp' function family to support hierachical | |
1804 | command line argument parsing, layered on top of getopt. | |
377a515b | 1805 | |
cbdee279 | 1806 | * strtod accepts new hexadecimal floating-point format from ISO C 9X. |
377a515b UD |
1807 | |
1808 | * printf has two new specifiers %a and %A to print hexadecimal flaoting-point | |
cbdee279 | 1809 | numbers. |
377a515b | 1810 | |
cbdee279 | 1811 | * scanf recognizes the %a and %A format for scanning floating point numbers. |
e61abf83 | 1812 | |
48869012 UD |
1813 | * the new headers <stdint.h> and <inttypes.h> from ISO C 9X provides |
1814 | information and interfaces for the available integer types. | |
e61abf83 | 1815 | |
813f4f4d UD |
1816 | * about 130 new math functions were added to implement the ISO C9x math |
1817 | library. | |
1818 | ||
e61abf83 | 1819 | * the new header <complex.h> contains definitions of the complex math |
cbdee279 UD |
1820 | functions from ISO C 9X. |
1821 | ||
1822 | * the new header <tgmath.h> defines generic macros to use complex or | |
1823 | real valued functions. | |
e61abf83 | 1824 | |
a5a0310d | 1825 | * Thorsten Kukuk provided an implementation for NIS+, securelevel 0, 1 and 2. |
e61abf83 | 1826 | |
a5a0310d UD |
1827 | * Andreas Jaeger provided a test suite for the math library. |
1828 | ||
1829 | * Mark Kettenis implemented the utmpx interface and an utmp daemon. | |
cbdee279 | 1830 | |
440d13e2 | 1831 | * Ulrich Drepper added character set conversion functions (iconv). |
cbdee279 UD |
1832 | |
1833 | * Optimized string functions have been added. | |
1834 | ||
1835 | * The localedata addon is now part of glibc. | |
2eb45444 UD |
1836 | |
1837 | * An implementation of profiling shared libraries was added by Ulrich Drepper. | |
ea278354 | 1838 | |
48244d09 UD |
1839 | * Thorsten Kukuk and Ulrich Drepper provided an implementation for a caching |
1840 | daemon for NSS (nscd). | |
1841 | ||
1842 | Missing a better place here are some numbers on improvements. Under | |
1843 | Linux 2.1.125 un-tar-ing the kernel sources takes | |
1844 | ||
0dee6738 | 1845 | user system wall |
48244d09 | 1846 | |
0dee6738 | 1847 | using local files 12.19s 6.88s 22.91s |
48244d09 | 1848 | |
0dee6738 | 1849 | using NIS 13.92s 8.91s 26.34s |
48244d09 | 1850 | |
0dee6738 | 1851 | using NIS & nscd 10.37s 7.34s 25.30s |
48244d09 | 1852 | |
0dee6738 UD |
1853 | using NIS+ 27.57s 30.37s 640.46s |
1854 | ||
1855 | using NIS+ & nscd 10.25s 7.83s 26.51s | |
1856 | ||
1857 | using NIS & old nscd [1] 13.83s 8.32s 29.60s | |
48244d09 | 1858 | |
48244d09 UD |
1859 | Keep in mind that non-namelookup related operations dominate above times. |
1860 | It was just a common complain that using NIS+ unpacking the kernel is | |
0dee6738 | 1861 | horribly slow. |
48244d09 | 1862 | |
0dee6738 UD |
1863 | [1] The old nscd implementation is not available anymore since it was |
1864 | distributed with glibc up to version 2.0.98 and thus is now replaced. | |
ea278354 UD |
1865 | |
1866 | * Tim Waugh provided an implementation of the POSIX.2 wordexp function family. | |
48869012 UD |
1867 | |
1868 | * Mark Kettenis provided a Hesiod NSS module. | |
20833331 UD |
1869 | |
1870 | * The ELF dynamic loader knows how to process dynamic string tokens ($ORIGIN | |
1871 | and $PLATFORM) in RPATHs and similar strings (Ulrich Drepper). | |
1872 | ||
1873 | * rcmd can now handle netgroups (Dick Streefland). | |
48244d09 | 1874 | |
62595351 UD |
1875 | * A port to the ARM was contributed by Phil Blundell, Pat Beirne and Scott |
1876 | Bambrough. | |
1877 | ||
1878 | * Support for the IPv6 protocol has been added to the socket API, as per the | |
1879 | latest draft standards. | |
1880 | ||
1770a20d UD |
1881 | * Support for Linux 2.2 has been added. |
1882 | ||
48244d09 UD |
1883 | * Interface changes relative to the latest 2.0.x release: |
1884 | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ | |
62595351 | 1885 | addseverity NEW: Unix98 |
48244d09 | 1886 | alphasort64 NEW: LFS |
62595351 UD |
1887 | argp_err_exit_status NEW: argp, GNU ext |
1888 | argp_error NEW: argp, GNU ext | |
1889 | argp_failure NEW: argp, GNU ext | |
1890 | argp_help NEW: argp, GNU ext | |
1891 | argp_parse NEW: argp, GNU ext | |
1892 | argp_program_bug_address NEW: argp, GNU ext | |
1893 | argp_program_version NEW: argp, GNU ext | |
1894 | argp_program_version_hook NEW: argp, GNU ext | |
1895 | argp_state_help NEW: argp, GNU ext | |
1896 | argp_usage NEW: argp, GNU ext | |
e980ca92 UD |
1897 | authdes_create NEW: Secure RPC |
1898 | authdes_getucred NEW: Secure RPC | |
1899 | authdes_pk_create NEW: Secure RPC | |
48244d09 UD |
1900 | backtrace NEW: GNU ext. |
1901 | backtrace_symbols NEW: GNU ext. | |
1902 | backtrace_symbols_fd NEW: GNU ext. | |
1903 | cacos NEW: ISO C 9x | |
1904 | cacosf NEW: ISO C 9x | |
1905 | cacosh NEW: ISO C 9x | |
1906 | cacoshf NEW: ISO C 9x | |
1907 | cacoshl NEW: ISO C 9x | |
1908 | cacosl NEW: ISO C 9x | |
1909 | capget NEW: kernel | |
1910 | capset NEW: kernel | |
1911 | carg NEW: ISO C 9x | |
1912 | cargf NEW: ISO C 9x | |
1913 | cargl NEW: ISO C 9x | |
1914 | casin NEW: ISO C 9x | |
1915 | casinf NEW: ISO C 9x | |
1916 | casinh NEW: ISO C 9x | |
1917 | casinhf NEW: ISO C 9x | |
1918 | casinhl NEW: ISO C 9x | |
1919 | casinl NEW: ISO C 9x | |
1920 | catan NEW: ISO C 9x | |
1921 | catanf NEW: ISO C 9x | |
1922 | catanh NEW: ISO C 9x | |
1923 | catanhf NEW: ISO C 9x | |
1924 | catanhl NEW: ISO C 9x | |
1925 | catanl NEW: ISO C 9x | |
e980ca92 | 1926 | cbc_crypt NEW: Secure RPC |
48244d09 UD |
1927 | ccos NEW: ISO C 9x |
1928 | ccosf NEW: ISO C 9x | |
1929 | ccosh NEW: ISO C 9x | |
1930 | ccoshf NEW: ISO C 9x | |
1931 | ccoshl NEW: ISO C 9x | |
1932 | ccosl NEW: ISO C 9x | |
1933 | cexp NEW: ISO C 9x | |
1934 | cexpf NEW: ISO C 9x | |
1935 | cexpl NEW: ISO C 9x | |
1936 | cimag NEW: ISO C 9x | |
1937 | cimagf NEW: ISO C 9x | |
1938 | cimagl NEW: ISO C 9x | |
1939 | clearerr_locked REMOVED | |
1940 | clntunix_create NEW: sunrpc ext | |
1941 | clog NEW: ISO C 9x | |
1942 | clog10 NEW: ISO C 9x | |
1943 | clog10f NEW: ISO C 9x | |
1944 | clog10l NEW: ISO C 9x | |
1945 | clogf NEW: ISO C 9x | |
1946 | clogl NEW: ISO C 9x | |
1947 | conj NEW: ISO C 9x | |
1948 | conjf NEW: ISO C 9x | |
1949 | conjl NEW: ISO C 9x | |
1950 | cpow NEW: ISO C 9x | |
1951 | cpowf NEW: ISO C 9x | |
1952 | cpowl NEW: ISO C 9x | |
1953 | cproj NEW: ISO C 9x | |
1954 | cprojf NEW: ISO C 9x | |
1955 | cprojl NEW: ISO C 9x | |
1956 | creal NEW: ISO C 9x | |
1957 | crealf NEW: ISO C 9x | |
1958 | creall NEW: ISO C 9x | |
1959 | creat64 NEW: LFS | |
1960 | csin NEW: ISO C 9x | |
1961 | csinf NEW: ISO C 9x | |
1962 | csinh NEW: ISO C 9x | |
1963 | csinhf NEW: ISO C 9x | |
1964 | csinhl NEW: ISO C 9x | |
1965 | csinl NEW: ISO C 9x | |
1966 | csqrt NEW: ISO C 9x | |
1967 | csqrtf NEW: ISO C 9x | |
1968 | csqrtl NEW: ISO C 9x | |
1969 | ctan NEW: ISO C 9x | |
1970 | ctanf NEW: ISO C 9x | |
1971 | ctanh NEW: ISO C 9x | |
1972 | ctanhf NEW: ISO C 9x | |
1973 | ctanhl NEW: ISO C 9x | |
1974 | ctanl NEW: ISO C 9x | |
e980ca92 UD |
1975 | des_setparity NEW: Secure RPC |
1976 | ecb_crypt NEW: Secure RPC | |
62595351 | 1977 | endutxent NEW: Unix98 |
48244d09 UD |
1978 | exp10 NEW: ISO C 9x |
1979 | exp10f NEW: ISO C 9x | |
1980 | exp10l NEW: ISO C 9x | |
1981 | exp2 NEW: ISO C 9x | |
1982 | exp2f NEW: ISO C 9x | |
1983 | exp2l NEW: ISO C 9x | |
1984 | fattach NEW: STREAMS | |
1985 | fdetach NEW: STREAMS | |
1986 | fdim NEW: ISO C 9x | |
1987 | fdimf NEW: ISO C 9x | |
1988 | fdiml NEW: ISO C 9x | |
1989 | feclearexcept NEW: ISO C 9x | |
1990 | fegetenv NEW: ISO C 9x | |
1991 | fegetexceptflag NEW: ISO C 9x | |
1992 | fegetround NEW: ISO C 9x | |
1993 | feholdexcept NEW: ISO C 9x | |
1994 | feof_locked REMOVED | |
1995 | feraiseexcept NEW: ISO C 9x | |
1996 | ferror_locked REMOVED | |
1997 | fesetenv NEW: ISO C 9x | |
1998 | fesetexceptflag NEW: ISO C 9x | |
1999 | fesetround NEW: ISO C 9x | |
2000 | fetestexcept NEW: ISO C 9x | |
2001 | feupdateenv NEW: ISO C 9x | |
2002 | fflush_locked REMOVED | |
2003 | ffsl NEW: GNU ext. | |
2004 | ffsll NEW: GNU ext. | |
2005 | fgetpos64 NEW: LFS | |
2006 | fgets_unlocked NEW: GNU ext. | |
2007 | fileno_locked REMOVED | |
2008 | fma NEW: ISO C 9x | |
2009 | fmaf NEW: ISO C 9x | |
2010 | fmal NEW: ISO C 9x | |
2011 | fmax NEW: ISO C 9x | |
2012 | fmaxf NEW: ISO C 9x | |
2013 | fmaxl NEW: ISO C 9x | |
2014 | fmin NEW: ISO C 9x | |
2015 | fminf NEW: ISO C 9x | |
2016 | fminl NEW: ISO C 9x | |
62595351 | 2017 | fmtmsg NEW: Unix98 |
48244d09 UD |
2018 | fopen64 NEW: LFS |
2019 | fputc_locked REMOVED | |
2020 | fputs_unlocked NEW: GNU ext. | |
2021 | fread_unlocked NEW: GNU ext. | |
2022 | freopen64 NEW: LFS | |
2023 | fseeko NEW: Unix98 | |
2024 | fsetpos64 NEW: LFS | |
2025 | fstatfs64 NEW: LFS | |
2026 | fstatvfs NEW: Unix98 | |
2027 | fstatvfs64 NEW: LFS | |
2028 | ftello NEW: Unix98 | |
2029 | ftello64 NEW: LFS | |
2030 | ftruncate64 NEW: LFS | |
2031 | ftw64 NEW: LFS | |
2032 | fwrite_unlocked NEW: GNU ext. | |
2033 | gai_strerror NEW: IPv6 | |
2034 | gamma_r REMOVED | |
2035 | gammaf_r REMOVED | |
2036 | gammal_r REMOVED | |
2037 | getchar_locked REMOVED | |
2038 | getdate NEW: Unix98 | |
2039 | getdate_err NEW: Unix98 | |
2040 | getdate_r NEW: GNU ext. | |
2041 | getmsg NEW: STREAMS | |
2042 | getnameinfo NEW: IPv6 | |
e980ca92 | 2043 | getnetname NEW: Secure RPC |
48244d09 UD |
2044 | getpmsg NEW: STREAMS |
2045 | getpt NEW: Unix98 PTY | |
2046 | getrlimit64 NEW: LFS | |
62595351 UD |
2047 | getutxent NEW: Unix98 |
2048 | getutxid NEW: Unix98 | |
2049 | getutxline NEW: Unix98 | |
48244d09 UD |
2050 | glob64 NEW: GNU ext. |
2051 | globfree64 NEW: GNU ext. | |
2052 | gnu_get_libc_release NEW: GNU ext. | |
2053 | gnu_get_libc_version NEW: GNU ext. | |
2054 | grantpt NEW: Unix98 PTY | |
e980ca92 | 2055 | host2netname NEW: Secure RPC |
48244d09 UD |
2056 | iconv NEW: iconv |
2057 | iconv_close NEW: iconv | |
2058 | iconv_open NEW: iconv | |
2059 | if_freenameindex NEW: IPv6 | |
2060 | if_indextoname NEW: IPv6 | |
2061 | if_nameindex NEW: IPv6 | |
2062 | if_nametoindex NEW: IPv6 | |
2063 | in6addr_any NEW: IPv6 | |
2064 | in6addr_loopback NEW: IPv6 | |
2065 | inet6_isipv4mapped NEW: IPv6 | |
2066 | isastream NEW: STREAMS | |
2067 | iswblank NEW: GNU ext. | |
e980ca92 UD |
2068 | key_decryptsession NEW: Secure RPC |
2069 | key_decryptsession_pk NEW: Secure RPC | |
2070 | key_encryptsession NEW: Secure RPC | |
2071 | key_encryptsession_pk NEW: Secure RPC | |
2072 | key_gendes NEW: Secure RPC | |
2073 | key_get_conv NEW: Secure RPC | |
2074 | key_secretkey_is_set NEW: Secure RPC | |
2075 | key_setnet NEW: Secure RPC | |
2076 | key_setsecret NEW: Secure RPC | |
48244d09 UD |
2077 | llrint NEW: ISO C 9x |
2078 | llrintf NEW: ISO C 9x | |
2079 | llrintl NEW: ISO C 9x | |
2080 | llround NEW: ISO C 9x | |
2081 | llroundf NEW: ISO C 9x | |
2082 | llroundl NEW: ISO C 9x | |
2083 | log2 NEW: ISO C 9x | |
2084 | log2f NEW: ISO C 9x | |
2085 | log2l NEW: ISO C 9x | |
2086 | lrint NEW: ISO C 9x | |
2087 | lrintf NEW: ISO C 9x | |
2088 | lrintl NEW: ISO C 9x | |
2089 | lround NEW: ISO C 9x | |
2090 | lroundf NEW: ISO C 9x | |
2091 | lroundl NEW: ISO C 9x | |
2092 | lseek64 NEW: LFS | |
2093 | makecontext NEW: Unix98 | |
2094 | mempcpy NEW: GNU ext. | |
2095 | mmap64 NEW: LFS | |
2096 | moncontrol REMOVED | |
2097 | modify_ldt NEW: kernel | |
2098 | nan NEW: ISO C 9x | |
2099 | nanf NEW: ISO C 9x | |
2100 | nanl NEW: ISO C 9x | |
2101 | nearbyint NEW: ISO C 9x | |
2102 | nearbyintf NEW: ISO C 9x | |
2103 | nearbyintl NEW: ISO C 9x | |
e980ca92 UD |
2104 | netname2host NEW: Secure RPC |
2105 | netname2user NEW: Secure RPC | |
42bd0a85 UD |
2106 | nexttoward NEW: ISO C 9x |
2107 | nexttowardf NEW: ISO C 9x | |
2108 | nexttowardl NEW: ISO C 9x | |
48244d09 UD |
2109 | nftw NEW: Unix98 |
2110 | nftw64 NEW: LFS | |
2111 | open64 NEW: LFS | |
e980ca92 | 2112 | passwd2des NEW: Secure RPC |
48244d09 UD |
2113 | pow10 NEW: GNU ext. |
2114 | pow10f NEW: GNU ext. | |
2115 | pow10l NEW: GNU ext. | |
2116 | pread NEW: Unix98 | |
2117 | pread64 NEW: LFS | |
2118 | printf_size NEW: GNU ext. | |
2119 | printf_size_info NEW: GNU ext. | |
2120 | profil_counter REMOVED | |
2121 | pthread_mutexattr_getkind_np REPLACED | |
2122 | pthread_mutexattr_setkind_np REPLACED | |
2123 | ptsname NEW: Unix98 PTY | |
2124 | ptsname_r NEW: Unix98 PTY | |
2125 | putc_locked REMOVED | |
2126 | putchar_locked REMOVED | |
2127 | putgrent NEW: GNU ext. | |
2128 | putmsg NEW: STREAMS | |
2129 | putpmsg NEW: STREAMS | |
62595351 | 2130 | pututxline NEW: Unix98 |
48244d09 UD |
2131 | pwrite NEW: Unix98 |
2132 | pwrite64 NEW: LFS | |
2133 | readdir64 NEW: LFS | |
2134 | readdir64_r NEW: LFS | |
2135 | remquo NEW: ISO C 9x | |
2136 | remquof NEW: ISO C 9x | |
2137 | remquol NEW: ISO C 9x | |
2138 | round NEW: ISO C 9x | |
2139 | roundf NEW: ISO C 9x | |
2140 | roundl NEW: ISO C 9x | |
2141 | rtime NEW: GNU ext. | |
2142 | scalbln NEW: ISO C 9x | |
2143 | scalblnf NEW: ISO C 9x | |
2144 | scalblnl NEW: ISO C 9x | |
2145 | scandir64 NEW: LFS | |
2146 | sendfile NEW: kernel | |
2147 | setcontext NEW: Unix98 | |
2148 | setrlimit64 NEW: LFS | |
62595351 | 2149 | setutxent NEW: Unix98 |
48244d09 UD |
2150 | sighold NEW: Unix98 |
2151 | sigignore NEW: Unix98 | |
2152 | sigqueue NEW: POSIX.1b | |
2153 | sigrelse NEW: Unix98 | |
2154 | sigset NEW: POSIX.1b | |
2155 | sigtimedwait NEW: POSIX.1b | |
2156 | sigwaitinfo NEW: POSIX.1b | |
2157 | sincos NEW: GNU ext. | |
2158 | sincosf NEW: GNU ext. | |
2159 | sincosl NEW: GNU ext. | |
2160 | statfs64 NEW: LFS | |
2161 | statvfs NEW: Unix98 | |
2162 | statvfs64 NEW: LFS | |
2163 | strcasestr NEW: GNU ext. | |
48244d09 UD |
2164 | strtoimax NEW: ISO C 9x |
2165 | strtoumax NEW: ISO C 9x | |
2166 | strverscmp NEW: GNU ext. | |
e980ca92 | 2167 | svcauthdes_stats NEW: Secure RPC |
48244d09 UD |
2168 | svcunix_create NEW: sunrpc etx |
2169 | svcunixfd_create NEW: sunrpc ext | |
2170 | swapcontext NEW: Unix98 | |
2171 | tcgetsid NEW: Unix98 PTY | |
2172 | tdestroy NEW: GNU ext. | |
2173 | tgamma NEW: ISO C 9x | |
2174 | tgammaf NEW: ISO C 9x | |
2175 | tgammal NEW: ISO C 9x | |
2176 | tmpfile64 NEW: LFS | |
2177 | trunc NEW: ISO C 9x | |
2178 | truncate64 NEW: LFS | |
2179 | truncf NEW: ISO C 9x | |
2180 | truncl NEW: ISO C 9x | |
2181 | umount2 NEW: kernel | |
2182 | unlockpt NEW: Unix98 PTY | |
62595351 | 2183 | updwtmpx NEW: Unix98 |
e980ca92 | 2184 | user2netname NEW: Secure RPC |
62595351 | 2185 | utmpxname NEW: Unix98 |
48244d09 | 2186 | versionsort NEW: GNU ext. |
3ef4002b | 2187 | versionsort64 NEW: GNU ext. |
48244d09 UD |
2188 | waitid NEW: Unix98 |
2189 | wcscasecmp NEW: GNU ext. | |
2190 | wcsncasecmp NEW: GNU ext. | |
2191 | wcsnlen NEW: GNU ext. | |
2192 | wcstoimax NEW: ISO C 9x | |
2193 | wcstoll NEW: ISO C 9x | |
2194 | wcstoull NEW: ISO C 9x | |
2195 | wcstoumax NEW: ISO C 9x | |
2196 | wcswcs NEW: Unix98 | |
2197 | wordexp NEW: POSIX.2 | |
2198 | wordfree NEW: POSIX.2 | |
2199 | write_profiling REMOVED | |
e980ca92 UD |
2200 | xdecrypt NEW: Secure RPC |
2201 | xdr_authdes_cred NEW: Secure RPC | |
2202 | xdr_authdes_verf NEW: Secure RPC | |
2203 | xdr_cryptkeyarg NEW: Secure RPC | |
2204 | xdr_cryptkeyarg2 NEW: Secure RPC | |
2205 | xdr_cryptkeyres NEW: Secure RPC | |
2206 | xdr_getcredres NEW: Secure RPC | |
2207 | xdr_key_netstarg NEW: Secure RPC | |
2208 | xdr_key_netstres NEW: Secure RPC | |
2209 | xdr_keybuf NEW: Secure RPC | |
2210 | xdr_keystatus NEW: Secure RPC | |
2211 | xdr_netnamestr NEW: Secure RPC | |
2212 | xdr_sizeof NEW: Secure RPC | |
48244d09 | 2213 | xdr_unixcred NEW: sunrpc ext |
e980ca92 | 2214 | xencrypt NEW: Secure RPC |
48244d09 | 2215 | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ |
1770a20d UD |
2216 | \f |
2217 | Version 2.0.6 | |
2218 | ||
2219 | * more bug fixes | |
2220 | ||
a5a0310d UD |
2221 | \f |
2222 | Version 2.0.5 | |
2223 | ||
2224 | * more bug fixes | |
2225 | ||
2226 | * inet_ntoa is thread-safe | |
2227 | ||
2228 | * updwtmp is moved from libutil to libc | |
2229 | ||
2230 | * rewrite of cbrt function | |
2231 | ||
2232 | * update of timezone data | |
2233 | \f | |
2234 | Version 2.0.4 | |
2235 | ||
2236 | * more bug fixes | |
2237 | \f | |
2238 | Version 2.0.3 | |
2239 | ||
2240 | * more bug fixes | |
c84142e8 | 2241 | \f |
795fbc9a UD |
2242 | Version 2.0.2 |
2243 | ||
2244 | * more bug fixes | |
2245 | ||
2246 | * add atoll function | |
2247 | ||
2248 | * fix complex problems in Berkeley DB code | |
e61abf83 UD |
2249 | |
2250 | * fix math functions | |
795fbc9a UD |
2251 | \f |
2252 | Version 2.0.1 | |
2253 | ||
2254 | * fixed lots of header problems (especially Linux/GNU specific) | |
2255 | ||
2256 | * dynamic loader preserves all registers | |
2257 | ||
2258 | * Roland McGrath provided support for handling of auxiliary objects in | |
2259 | the ELF dynamic loader. | |
2260 | ||
2261 | * support for parallel builds is improved | |
2262 | \f | |
40a4b79f | 2263 | Version 2.0 |
28f540f4 | 2264 | |
d3669add RM |
2265 | * GNU extensions are no longer declared by default. To enable them you |
2266 | must define the macro `_GNU_SOURCE' in your program or compile with | |
2267 | `-D_GNU_SOURCE'. | |
2268 | ||
28f540f4 RM |
2269 | * The library has changed from using GNU ld symbol aliases to using weak |
2270 | symbols where available. The ELF object file format supports weak | |
2271 | symbols; GNU ld also supports weak symbols in the a.out format. (There | |
2272 | is also now support for other GNU ld extensions in ELF. Use the | |
787126fe RM |
2273 | `--with-elf' option to configure to indicate you have ELF, and |
2274 | `--with-gnu-ld' if using GNU ld.) This change resulted in the deletion | |
28f540f4 RM |
2275 | of many files which contained only symbol aliases, reducing the size of |
2276 | the source and the compiled library; many other files were renamed to | |
2277 | less cryptic names previously occupied by the symbol alias files. | |
dcf0671d UD |
2278 | There is a new header file <elf.h> for programs which operate on |
2279 | files in the ELF format. | |
49e522bf RM |
2280 | |
2281 | * Converted to Autoconf version 2, so `configure' has more options. | |
2282 | Run `configure --help' to see the details. | |
2283 | ||
2284 | * The library can now be configured to build profiling, highly-optimized | |
b25c5d66 RM |
2285 | (but undebuggable), and/or shared libraries (ELF with GNU ld only). The |
2286 | `--enable-profile', `--enable-omitfp', and `--enable-shared' options to | |
2287 | `configure' enable building these extra libraries. The shared library is | |
2288 | built by default when using both ELF and GNU ld. When shared libraries | |
2289 | are enabled, the new library `-ldl' is available for arbitrary run-time | |
2290 | loading of shared objects; its interface is defined in <dlfcn.h>. The | |
2291 | new header file <link.h> gives access to the internals of the run-time | |
33a934a3 UD |
2292 | dynamic linker, `ld.so'. The shell script `ldd' is similar to the |
2293 | application of same name on other systems and it provides information | |
2294 | about dynamically linked binaries. | |
49e522bf | 2295 | |
71733723 RM |
2296 | * The C library now provides the run-time support code for profiling |
2297 | executables compiled with `-pg'. Programs can control the profiling code | |
d3669add RM |
2298 | through the interface in <sys/gmon.h>. The `gmon.out' files written by |
2299 | the GNU C library can be read only by GNU `gprof' (from GNU binutils); | |
2300 | the support for this file format was contributed by David Mosberger-Tang. | |
71733723 | 2301 | |
f7eac6eb | 2302 | * The math code has been replaced with a math library based on fdlibm from |
33a934a3 UD |
2303 | Sun, and modified by JT Conklin and Ulrich Drepper with i387 support, by |
2304 | Ian Taylor with `float' functions and by Ulrich Drepper with `long double' | |
2305 | functions. The math functions now reside in a separate library, so | |
2306 | programs using them will need to use `-lm' their linking commands. | |
2307 | ||
2308 | * John C. Bowman contributed optimized ix87 assembler inline functions. | |
f7eac6eb | 2309 | |
5f0e6fc7 RM |
2310 | * Ulrich Drepper has contributed support for an `/etc/nsswitch.conf' |
2311 | mechanism similar to that found in Solaris 2. This is now used for the | |
33a934a3 UD |
2312 | group, passwd, hosts, networks, services, protocols, rpc, ethers, |
2313 | shadow, netgroup, publickey, and alias databases. The `nsswitch.conf' | |
2314 | file controls what services are used for each individual database. This | |
2315 | works by loading shared libraries with names specified in `nsswitch.conf', | |
2316 | so service modules can be changed or added at any time without even | |
2317 | relinking any program. Currently there are the file, db, and NIS based | |
2318 | NSS services available. | |
5f0e6fc7 | 2319 | |
49e522bf RM |
2320 | * The new functions `strtoq' and `strtouq' parse integer values from |
2321 | strings, like `strtol' and `strtoul', but they return `long long int' and | |
2322 | `unsigned long long int' values, respectively (64-bit quantities). | |
2323 | ||
2324 | * The new functions `strtof' and `strtold' parse floating-point values from | |
2325 | strings, like `strtod', but they return `float' and `long double' values, | |
2326 | respectively (on some machines `double' and `long double' are the same). | |
2327 | ||
2328 | * Ulrich Drepper has contributed new implementations of the floating-point | |
2329 | printing and reading code used in the `printf' family of functions and | |
2330 | `strtod', `strtof', and `strtold'. These new functions are perfectly | |
2331 | accurate, and much faster than the old ones. | |
2332 | ||
33a934a3 UD |
2333 | * The implementation of the POSIX locale model was completely rewritten by |
2334 | Ulrich Drepper. This includes the new programs `localedef' and `locale' | |
2335 | to compile the POSIX locale definition. | |
2336 | ||
2337 | * The former dummy implementations of the strcoll and strxfrm function are | |
2338 | now replaced by fully functional code contributed by Ulrich Drepper. The | |
2339 | collation information comes from the POSIX locale definitions. | |
2340 | ||
49e522bf RM |
2341 | * The new header <langinfo.h> defines an interface for accessing |
2342 | various locale-dependent data (using the locale chosen with `setlocale'). | |
2343 | ||
f7eac6eb | 2344 | * Ulrich Drepper has contributed a new suite of functions for operation on |
33a934a3 | 2345 | wide-character and multibyte-character strings, in <wchar.h>; |
b7407d63 | 2346 | and classification and case conversion of wide characters, in <wctype.h>. |
33a934a3 UD |
2347 | These new functions are conforming to the ISO C, Amendement 1 specification. |
2348 | ||
2349 | * There is now a second implementation of the standard I/O library available. | |
2350 | It comes from GNU libg++ as was written by Per Bothner, heavily modified | |
2351 | by Hongjiu Lu and made thread safe by Ulrich Drepper. | |
f7eac6eb | 2352 | |
71733723 | 2353 | * You can now use positional parameter specifications in format strings |
49e522bf RM |
2354 | for the `printf' and `scanf' families of functions. For example, |
2355 | `printf ("Number %2$d, Mr %1$s\n", "Jones", 6);'' prints | |
2356 | ``Number 6, Mr Jones''. This is mainly useful when providing different | |
d365fd2c RM |
2357 | format strings for different languages, whose grammars may dictate |
2358 | different orderings of the values being printed. To support this | |
49e522bf | 2359 | feature, the interface for `register_printf_handler' has changed; see |
d365fd2c | 2360 | the header file <printf.h> for details. |
49e522bf RM |
2361 | |
2362 | * The `printf' and `scanf' families of functions now understand a new | |
2363 | formatting flag for numeric conversions: the ' flag (e.g. %'d or %'f) says | |
2364 | to group numbers as indicated by the locale; for `scanf' and friends, this | |
2365 | says to accept as valid only a number with all the proper grouping | |
2366 | separators in the right places. In the default "C" locale, numbers are | |
2367 | not grouped; but locales for specific countries will define the usual | |
2368 | conventions (i.e. separate thousands with `,' in the US locale). | |
28f540f4 RM |
2369 | |
2370 | * The pgrp functions have been regularized, slightly incompatibly but much | |
2371 | less confusingly. The core functions are now `getpgid' and `setpgid', | |
2372 | which take arguments for the PID to operate on; the POSIX.1 `getpgrp' (no | |
2373 | argument) and BSD `setpgrp' (identical to `setpgid') functions are | |
2374 | provided for compatibility. There is no longer an incompatible `getpgrp' | |
2375 | with an argument declared under _BSD_SOURCE; no BSD code uses it. | |
2376 | ||
2377 | * The new header file <fts.h> and suite of functions simplify programs that | |
2378 | operate on directory trees. This code comes from 4.4 BSD. | |
2379 | ||
33a934a3 UD |
2380 | * The resolver code has been updated from the BIND 4.9.5-P1 release. |
2381 | Parts of the code were heavily modified by Ulrich Drepper to fit in the | |
2382 | NSS scheme used in glibc. | |
28f540f4 | 2383 | |
28f540f4 RM |
2384 | * There is a new malloc debugging hook `__memalign_hook'. |
2385 | ||
2386 | * There are new typedefs `ushort' for `unsigned short int' and `uint' for | |
2387 | `unsigned int' in <sys/types.h>. These are for compatibility only and | |
2388 | their use is discouraged. | |
2389 | ||
2390 | * The `-lmcheck' library to enable standard malloc debugging hooks is now | |
2391 | done differently, so that it works even without GNU ld. | |
787126fe | 2392 | |
22a1292a RM |
2393 | * New function `euidaccess' checks allowed access to a file like `access', |
2394 | but using the effective IDs instead of the real IDs. | |
49e522bf RM |
2395 | |
2396 | * The time zone data files have been updated for the latest and greatest | |
2397 | local time conventions of the countries of the world. | |
2398 | ||
2399 | * The new function `dirfd' extracts the file descriptor used by a DIR stream; | |
2400 | see <dirent.h>. | |
2401 | ||
2402 | * The new functions `ecvt', `fcvt', and `gcvt' provide an obsolete interface | |
2403 | for formatting floating-point numbers. They are provided only for | |
33a934a3 UD |
2404 | compatibility; new programs should use `sprintf' instead. There are |
2405 | also equivalent function for the `long double' floating-point type and | |
2406 | all functions also exist in a reentrant form. | |
342414a6 RM |
2407 | |
2408 | * The new auxiliary library `-lutil' from 4.4 BSD contains various | |
2409 | functions for maintaining the login-record files (primarily of use to | |
2410 | system programs such as `login'), and convenient functions for | |
2411 | allocating and initializing a pseudo-terminal (pty) device. | |
c709e372 RM |
2412 | |
2413 | * Ulrich Drepper has contributed new support for System V style | |
2414 | shared memory and IPC on systems that support it. | |
2415 | ||
2416 | * Ulrich Drepper has contributed several miscellaneous new functions found | |
2417 | in System V: The `hsearch' family of functions provide an effective | |
2418 | implementation of hash tables; `a64l' and `l64a' provide a very simple | |
2419 | binary to ASCII mapping; `drand48' and friends provide a 48-bit random | |
2420 | number generator. | |
2421 | ||
2422 | * Ulrich Drepper has contributed new reentrant counterparts for the | |
2423 | `random' and `hsearch' families of functions; `random_r', `hsearch_r', etc. | |
2424 | ||
2425 | * Ulrich Drepper has contributed new, highly-optimized versions of several | |
2426 | string functions for the i486/Pentium family of processors. | |
2427 | ||
71733723 | 2428 | * Ulrich Drepper has updated the Linux-specific code, based largely |
c709e372 | 2429 | on work done in Hongjiu Lu's version of GNU libc for Linux. |
33a934a3 UD |
2430 | The GNU library now supports Linux versions 2.0.10 and later, |
2431 | using the ELF object file format (i[3456]86-*-linux). | |
c709e372 | 2432 | |
d3669add RM |
2433 | * Andreas Schwab has ported the C library to Linux/m68k (m68k-*-linux). |
2434 | ||
33a934a3 UD |
2435 | * David Mosberger-Tang and Richard Henderson have ported the C library |
2436 | to Linux/Alpha (alpha-*-linux). Richard Henderson contributed the | |
2437 | dynamic linking support for ELF/Alpha. | |
2438 | ||
2439 | * Richard Henderson contributed several Alpha optimized assembler function | |
2440 | for arithmetic and string handling. | |
d3669add | 2441 | |
c709e372 | 2442 | * Ulrich Drepper has contributed a new set of message catalog functions to |
40a4b79f RM |
2443 | support multiple languages using the <libintl.h> interface, for use with |
2444 | his new package GNU gettext. Translation volunteers have contributed | |
2445 | catalogs of the library's messages in Spanish, German, and Korean. | |
2446 | ||
2447 | * For compatibility with XPG4, Ulrich Drepper has contributed the `gencat' | |
2448 | program and the `catgets' function for reading the catalog files it | |
2449 | creates. (The <libintl.h> interface is preferred; we include the | |
2450 | <nl_types.h> interface using `catgets' only for source compatibility with | |
2451 | programs already written to use it.) | |
71733723 RM |
2452 | |
2453 | * New header file <values.h> gives SVID-compatible names for <limits.h> | |
2454 | constants. | |
2455 | ||
2456 | * Various new macros, declarations, and small header files for compatibility | |
2457 | with 4.4 BSD. | |
2458 | ||
2459 | * New function `group_member' is a convenient way to check if a process has | |
2460 | a given effective group ID. | |
2461 | ||
2462 | * When using GCC 2.7 and later, the socket functions are now declared in a | |
2463 | special way so that passing an argument of type `struct sockaddr_in *', | |
2464 | `struct sockaddr_ns *', or `struct sockaddr_un *' instead of the generic | |
2465 | `struct sockaddr *' type, does not generate a type-clash warning. | |
2466 | ||
2467 | * New function `error' declared in header file <error.h> is a convenient | |
6d52618b | 2468 | function for printing error messages and optionally exiting; this is the |
71733723 RM |
2469 | canonical function used in GNU programs. The new functions `err', `warn', |
2470 | and friends in header file <err.h> are the canonical 4.4 BSD interface for | |
2471 | doing the same thing. | |
2472 | ||
2473 | * The <glob.h> interface has several new flags from 4.4 BSD that extend the | |
2474 | POSIX.2 `glob' function to do ~ and {...} expansion. | |
2475 | ||
2476 | * New function `unsetenv' complements `setenv' for compatibility with 4.4 BSD. | |
33a934a3 | 2477 | `clearenv' which is used in POSIX.9 is also available. |
71733723 RM |
2478 | |
2479 | * New function `getsid' returns session ID number on systems that support it. | |
2480 | ||
f7eac6eb RM |
2481 | * We have incorporated the 4.4 BSD `db' library (version 1.85). New header |
2482 | files <db.h> and <mpool.h> provide a rich set of functions for several | |
2483 | types of simple databases stored in memory and in files, and <ndbm.h> is | |
6d52618b | 2484 | an old `ndbm'-compatible interface using the `db' functions. Link with |
999493cb | 2485 | `-ldb' to get these functions. |
f7eac6eb RM |
2486 | |
2487 | * New macro `strdupa' copies a string like `strdup', but uses local stack | |
2488 | space from `alloca' instead of dynamic heap space from `malloc'. | |
52e9a9d1 RM |
2489 | |
2490 | * New function `strnlen' is like `strlen' but searches only a given maximum | |
33a934a3 UD |
2491 | number of characters for the null terminator. `stpncpy', `strndup' and |
2492 | `strndupa' are similar variants for the `stpcpy', `strdup' and `strdupa' | |
2493 | function. | |
40a4b79f RM |
2494 | |
2495 | * New function `statfs' in header <sys/statfs.h>. | |
2496 | ||
2497 | * The new <argz.h> and <envz.h> interfaces contributed by Miles Bader | |
2498 | provide convenient functions for operating on blocks of null-terminated | |
2499 | strings. | |
2500 | ||
2501 | * A new suite of functions in <utmp.h> handle all the details of reading | |
2502 | and writing the utmp file. | |
33a934a3 UD |
2503 | |
2504 | * An implementation of the NIS/YP(tm) based NSS service was contributed by | |
2505 | Thorsten Kukuk. | |
2506 | ||
2507 | * Paul Eggert and Ulrich Drepper modified the `strftime' function to be | |
2508 | completely POSIX compliant and also implemented the extended functionality | |
2509 | to handle alternate digit representation and alternate era date formats. | |
2510 | ||
2511 | * Ulrich Drepper provided an implementation of the `strptime' function | |
2512 | defined in XPG4.2 which transforms a string into a `struct tm' value. | |
2513 | ||
2514 | * Paul Eggert provided the tzselect shell script as part of the timezone | |
2515 | code. The shell script makes it easy to select the correct timezone | |
2516 | specification. | |
2517 | ||
2518 | * The implementation of the malloc family of functions is completely replaced | |
2519 | by a new implementation by Doug Lea with many improvements by Wolfram Gloger. | |
2520 | The implementation uses the mmap function (if available) and it is | |
2521 | optimized for the use in multi threaded programs. | |
2522 | ||
2523 | * Ulrich Drepper contributed a MD5 "encryption" for the crypt family of | |
2524 | functions. This new functionality is usable by specifying a special | |
2525 | salt string and it is compatible with implementation on *BSD systems. | |
2526 | ||
2527 | * Lots of functions from the XPG4.2 standard were added by Ulrich Drepper: | |
2528 | `getsubopt' to handle second level command line options, `bsd_signal' | |
2529 | to access BSD style `signal' functionality, the obsolete `regexp' style | |
2530 | expression matcher. | |
2531 | ||
2532 | * the `lchown' function is available on system which support this | |
2533 | functionality. | |
2534 | ||
2535 | * The implementation of the shadow password handling function was contributed | |
2536 | by Ulrich Drepper. | |
2537 | ||
2538 | * David Mosberger-Tang changed the SunRPC implementation to be 64bit safe. | |
2539 | ||
2540 | * POSIX.1g support was added. The <sys/select.h> header is available, | |
2541 | `isfdtype' and `pselect' are implemented. Craig Metz contributed an | |
2542 | implementation of `getaddrinfo'. | |
28f540f4 RM |
2543 | \f |
2544 | Version 1.09 | |
2545 | ||
2546 | * For cross-compilation you should now set `BUILD_CC' instead of `HOST_CC'. | |
2547 | ||
2548 | * New header file <fstab.h> and new functions `getfsspec', `getfsent' and | |
2549 | friends, for parsing /etc/fstab. This code comes from 4.4 BSD. | |
2550 | ||
2551 | * The new function `daemon' from 4.4 BSD is useful for server programs that | |
2552 | want to put themselves in the background. | |
2553 | ||
2554 | * Joel Sherrill has contributed support for several standalone boards that | |
2555 | run without an operating system. | |
2556 | ||
2557 | * `printf', `scanf' and friends now accept a `q' type modifier for long | |
2558 | long int as well as `ll'. Formats using these might be `%qu' or `%lld'. | |
2559 | ||
2560 | * All of the code taken from BSD (notably most of the math and networking | |
2561 | routines) has been updated from the BSD 4.4-Lite release. | |
2562 | ||
2563 | * The resolver code has been updated from the BIND-4.9.3-BETA9 release. | |
2564 | ||
2565 | * The new functions `getdomainname' and `setdomainname' fetch or change the | |
2566 | YP/NIS domain name. These are system calls which exist on systems which | |
2567 | have YP (aka NIS). | |
2568 | ||
2569 | * The time zone data files have been updated for the latest international | |
2570 | conventions. | |
2571 | ||
2572 | * The SunRPC programs `portmap' and `rpcinfo' are now installed in | |
2573 | $(sbindir) (usually /usr/local/sbin) instead of $(bindir). | |
2574 | \f | |
2575 | Version 1.08 | |
2576 | ||
2577 | * The C library now includes support for Sun RPC, from Sun's free | |
2578 | RPCSRC-4.0 distribution. The `portmap', `rpcinfo', and `rpcgen' programs | |
2579 | are included. (There is still no support for YP.) | |
2580 | ||
2581 | * Tom Quinn has contributed a port of the C library to SGI machines running | |
2582 | Irix 4 (mips-sgi-irix4). | |
2583 | ||
2584 | * The new `lockf' function is a simplified interface to the locking | |
2585 | facilities of `fcntl', included for compatibility. | |
2586 | ||
2587 | * New time functions `timegm', `timelocal', and `dysize' for compatibility. | |
2588 | ||
2589 | * New header file <sys/timeb.h> and new function `ftime' for compatibility. | |
2590 | ||
2591 | * New header files <poll.h> and <sys/poll.h> and new function `poll' for | |
2592 | compatibility. | |
2593 | ||
2594 | * The error message printed by `assert' for a failed assertion now includes | |
2595 | the name of the program (if using GNU ld) and the name of the calling | |
2596 | function (with versions of GCC that support this). | |
2597 | ||
2598 | * The `psignal' function is now declared in <signal.h>, not <stdio.h>. | |
2599 | ||
2600 | * The library now includes the <sys/mman.h> header file and memory | |
2601 | management functions `mmap', `munmap', `mprotect', `msync', and | |
2602 | `madvise', on systems that support those facilities. | |
2603 | ||
2604 | * The interface for `mcheck' has changed slightly: the function called to | |
2605 | abort the program when an allocation inconsistency is detected now takes | |
2606 | an argument that indicates the type of failure. The new function | |
2607 | `mprobe' lets you request a consistency check for a particular block at | |
2608 | any time (checks are normally done only when you call `free' or `realloc' | |
2609 | on a block). | |
2610 | ||
2611 | * It is now possible to easily cross-compile the C library, building on one | |
2612 | system a library to run on another machine and/or operating system. All | |
2613 | you need to do is set the variable `HOST_CC' in `configparms' to the | |
2614 | native compiler for programs to run on the machine you are building on (a | |
2615 | few generator programs are used on Unix systems); set `CC' to the | |
2616 | cross-compiler. | |
2617 | ||
2618 | * The new function `fexecve' (only implemented on the GNU system) executes | |
2619 | a program file given a file descriptor already open on the file. | |
2620 | \f | |
2621 | Version 1.07 | |
2622 | ||
2623 | * Brendan Kehoe has contributed most of a port to the DEC Alpha | |
2624 | running OSF/1 (alpha-dec-osf1). He says it is 75% complete. | |
2625 | ||
2626 | * You can set the variable `libprefix' in `configparms' to specify a prefix | |
2627 | to be prepended to installed library files; this makes it easy to install | |
2628 | the GNU C library to be linked as `-lgnuc' or whatever. | |
2629 | ||
2630 | * The new `stpncpy' is a cross between `stpcpy' and `strncpy': It | |
2631 | copies a limited number of characters from a string, and returns the | |
2632 | address of the last character written. | |
2633 | ||
2634 | * You no longer need to check for whether the installed `stddef.h' is | |
2635 | compatible with the GNU C library. configure now checks for you. | |
2636 | ||
2637 | * You can now define a per-stream `fileno' function to convert the | |
2638 | stream's cookie into an integral file descriptor. | |
2639 | ||
2640 | * ``malloc (0)'' no longer returns a null pointer. Instead, it | |
2641 | allocates zero bytes of storage, and returns a unique pointer which | |
2642 | you can pass to `realloc' or `free'. The behavior is undefined if | |
2643 | you dereference this pointer. | |
2644 | ||
2645 | * The C library now runs on Sony NEWS m68k machines running either | |
2646 | NewsOS 3 or NewsOS 4. | |
2647 | ||
2648 | * The new `syscall' function is a system-dependent primitive function | |
2649 | for invoking system calls. It has the canonical behavior on Unix | |
2650 | systems, including unreliable return values for some calls (such as | |
2651 | `pipe', `fork' and `getppid'). | |
2652 | ||
2653 | * The error code `EWOULDBLOCK' is now obsolete; it is always defined | |
2654 | to `EAGAIN', which is the preferred name. On systems whose kernels | |
2655 | use two distinct codes, the C library now translates EWOULDBLOCK to | |
2656 | EAGAIN in every system call function. | |
2657 | \f | |
2658 | Version 1.06 | |
2659 | ||
2660 | * The GNU C Library Reference Manual is now distributed with the library. | |
2661 | `make dvi' will produce a DVI file of the printed manual. | |
2662 | `make info' will produce Info files that you can read on line using C-h i | |
2663 | in Emacs or the `info' program. | |
ea278354 | 2664 | Please send comments on the manual to bug-glibc-manual@gnu.org. |
28f540f4 RM |
2665 | |
2666 | * The library now supports SVR4 on i386s (i386-unknown-sysv4). | |
2667 | ||
2668 | * Brendan Kehoe has contributed a port to Sun SPARCs running Solaris 2. | |
2669 | ||
2670 | * Jason Merrill has contributed a port to the Sequent Symmetry running | |
2671 | Dynix version 3 (i386-sequent-dynix). | |
2672 | ||
2673 | * The library has been ported to i386s running SCO 3.2.4 (also known as SCO | |
2674 | ODT 2.0; i386-unknown-sco3.2.4) or SCO 3.2 (i386-unknown-sco3.2). | |
2675 | ||
2676 | * New function `memory_warnings' lets you arrange to get warnings when | |
2677 | malloc is running out of memory to allocate, like Emacs gives you. | |
2678 | ||
2679 | * The C library now contains the relocating allocator used in Emacs 19 for | |
2680 | its editing buffers. This allocator (ralloc) minimizes allocation | |
2681 | overhead and fragmentation by moving allocated regions around whenever it | |
2682 | needs to. You always refer to a ralloc'd region with a "handle" (a | |
2683 | pointer to a pointer--an object of type `void **'). | |
2684 | ||
2685 | * There is a new `printf' format: `%m' gives you the string corresponding | |
2686 | to the error code in `errno'. | |
2687 | ||
2688 | * In `scanf' formats, you can now use `%as' or `%a[' to do the normal `%s' | |
2689 | or `%[' conversion, but instead of filling in a fixed-sized buffer you | |
2690 | pass, the `a' modifier says to fill in a `char **' you pass with a | |
2691 | malloc'd string. | |
2692 | ||
2693 | * The `fnmatch' function supports the new flag bits `FNM_LEADING_DIR' and | |
2694 | `FNM_CASEFOLD'. `FNM_LEADING_DIR' lets a pattern like `foo*' match a | |
2695 | name like `foo/bar'. `FNM_CASEFOLD' says to ignore case in matching. | |
2696 | ||
2697 | * `mkstemp' is a traditional Unix function to atomically create and open a | |
2698 | uniquely-named temporary file. | |
2699 | \f | |
2700 | Version 1.05 | |
2701 | ||
2702 | * The standard location for the file that says what the local timezone is | |
2703 | has changed again. It is now `/usr/local/etc/localtime' (or more | |
2704 | precisely, `${prefix}/etc/localtime') rather than `/etc/localtime'. | |
2705 | ||
2706 | * The distribution no longer contains any files with names longer than 14 | |
2707 | characters. | |
2708 | ||
2709 | * `struct ttyent' has two new flag bits: TTY_TRUSTED and TTY_CONSOLE. | |
2710 | These are set by the new `trusted' and `console' keywords in `/etc/ttys'. | |
2711 | ||
2712 | * New functions `ttyslot' and `syslog' from 4.4 BSD. | |
2713 | \f | |
2714 | Version 1.04 | |
2715 | ||
2716 | * The configuration process has changed quite a bit. The `configure' | |
2717 | script is now used just like the configuration scripts for other GNU | |
2718 | packages. The `sysdeps' directory hierarchy is much rearranged. | |
2719 | The file `INSTALL' explains the new scheme in detail. | |
2720 | ||
2721 | * The header files no longer need to be processed into ANSI C and | |
2722 | traditional C versions. There is just one set of files to install, and | |
2723 | it will work with ANSI or old C compilers (including `gcc -traditional'). | |
2724 | ||
2725 | * Brendan Kehoe and Ian Lance Taylor have ported the library to the | |
2726 | MIPS DECStation running Ultrix 4. | |
2727 | ||
2728 | * The Sun 4 startup code (crt0) can now properly load SunOS 4 shared libraries. | |
2729 | Tom Quinn contributed the initial code. The GNU C library can NOT yet be | |
2730 | made itself into a shared library. | |
2731 | ||
2732 | * Yet further improved support for the i386, running 4.3 BSD-like systems | |
2733 | (such as Mach 3 with the Unix single-server), or System V. | |
2734 | ||
2735 | * New function `strncasecmp' to do case-insensitive string comparison | |
2736 | with limited length. | |
2737 | ||
2738 | * New function `strsep' is a reentrant alternative to `strtok'. | |
2739 | ||
2740 | * New functions `scandir' and `alphasort' for searching directories. | |
2741 | ||
2742 | * New function `setenv' is a better interface to `putenv'. | |
2743 | ||
2744 | * Ian Lance Taylor has contributed an implementation of the SVID `ftw' | |
2745 | function for traversing a directory tree. | |
2746 | ||
2747 | * The GNU obstack package is now also part of the C library. | |
2748 | The new function `open_obstack_stream' creates a stdio stream that | |
2749 | writes onto an obstack; `obstack_printf' and `obstack_vprintf' do | |
2750 | formatted output directly to an obstack. | |
2751 | ||
2752 | * Miscellaneous new functions: reboot, nice, sigaltstack (4.4 BSD only), | |
2753 | cfmakeraw, getusershell, getpass, swab, getttyent, seteuid, setegid. | |
2754 | ||
2755 | * `FNM_FILE_NAME' is another name for `FNM_PATHNAME', used with `fnmatch'. | |
2756 | ||
2757 | * The new functions `strfry' and `memfrob' do mysterious and wonderful | |
2758 | things to your strings. | |
2759 | ||
2760 | * There are some new test programs: test-fseek, testmb, and testrand. | |
2761 | ||
2762 | * Some work has been done to begin porting the library to 4.4 BSD and Linux. | |
2763 | These ports are not finished, but are a good starting place for really | |
2764 | supporting those systems. | |
2765 | ||
2766 | * `/etc/localtime' is now the standard location for the file that says what | |
2767 | the local timezone is, rather than `/usr/local/lib/zoneinfo/localtime'. | |
2768 | This follows the general principle that `/etc' is the place for all local | |
2769 | configuration files. | |
2770 | ||
2771 | * The C library header files now use `extern "C"' when used by the C++ | |
2772 | compiler, so the C library should now work with C++ code. | |
2773 | ||
2774 | * The header file <bstring.h> is gone. <string.h> now declares bcopy, | |
56ddf355 UD |
2775 | bcmp, bzero, and ffs. (Update: nowadays these functions are declared |
2776 | in <strings.h>.) | |
28f540f4 RM |
2777 | |
2778 | * Mike Haertel (of GNU e?grep and malloc fame) has written a new sorting | |
2779 | function which uses the `merge sort' algorithm, and is said to be | |
2780 | significantly faster than the old GNU `qsort' function. Merge sort is | |
2781 | now the standard `qsort' function. The new algorithm can require a lot | |
2782 | of temporary storage; so, the old sorting function is called when the | |
2783 | required storage is not available. | |
2784 | ||
2785 | * The C library now includes Michael Glad's Ultra Fast Crypt, which | |
2786 | provides the Unix `crypt' function, plus some other entry points. | |
28f540f4 RM |
2787 | |
2788 | * The code and header files taken from 4.4 BSD have been updated with the | |
2789 | latest files released from Berkeley. | |
2790 | \f | |
2791 | ---------------------------------------------------------------------- | |
2792 | Copyright information: | |
2793 | ||
1979f3c1 | 2794 | Copyright (C) 1992-2016 Free Software Foundation, Inc. |
28f540f4 RM |
2795 | |
2796 | Permission is granted to anyone to make or distribute verbatim copies | |
2797 | of this document as received, in any medium, provided that the | |
2798 | copyright notice and this permission notice are preserved, | |
2799 | thus giving the recipient permission to redistribute in turn. | |
2800 | ||
2801 | Permission is granted to distribute modified versions | |
2802 | of this document, or of portions of it, | |
2803 | under the above conditions, provided also that they | |
2804 | carry prominent notices stating who last changed them. | |
2805 | \f | |
2806 | Local variables: | |
2807 | version-control: never | |
1086d70d | 2808 | fill-column: 76 |
557a9213 | 2809 | End: |