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ee9247c3 | 1 | GNU C Library NEWS -- history of user-visible changes. |
bfff8b1b | 2 | Copyright (C) 1992-2017 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. |
00cdcf5a SP |
7 | \f |
8 | Version 2.27 | |
9 | ||
10 | Major new features: | |
11 | ||
20c7b195 L |
12 | * Optimized x86-64 asin, atan2, exp, expf, log, pow, atan, sin and tan |
13 | with FMA, contributed by Arjan van de Ven and H.J. Lu from Intel. | |
14 | ||
ae8372d7 JM |
15 | * Optimized x86-64 trunc and truncf for processors with SSE4.1. |
16 | ||
4ea49f4c | 17 | * Optimized generic expf, exp2f, logf, log2f and powf. |
72aa6233 | 18 | |
ec2c1fce FW |
19 | * In order to support faster and safer process termination the malloc API |
20 | family of functions will no longer print a failure address and stack | |
21 | backtrace after detecting heap corruption. The goal is to minimize the | |
22 | amount of work done after corruption is detected and to avoid potential | |
23 | security issues in continued process execution. Reducing shutdown time | |
24 | leads to lower overall process restart latency, so there is benefit both | |
25 | from a security and performance perspective. | |
26 | ||
91e7cf98 FW |
27 | * The abort function terminates the process immediately, without flushing |
28 | stdio streams. Previous glibc versions used to flush streams, resulting | |
29 | in deadlocks and further data corruption. This change also affects | |
30 | process aborts as the result of assertion failures. | |
31 | ||
81325b12 JM |
32 | * On platforms where long double has the IEEE binary128 format (aarch64, |
33 | alpha, mips64, s390 and sparc), the math library now implements _Float128 | |
34 | interfaces for that type, as defined by ISO/IEC TS 18661-3:2015. These | |
35 | are the same interfaces added in version 2.26 for some platforms where | |
36 | this format is supported but is not the format of long double. | |
37 | ||
00cdcf5a SP |
38 | Deprecated and removed features, and other changes affecting compatibility: |
39 | ||
60e2846e DL |
40 | * On GNU/Linux, the obsolete Linux constant PTRACE_SEIZE_DEVEL is no longer |
41 | defined by <sys/ptrace.h>. | |
00cdcf5a | 42 | |
813378e9 JM |
43 | * libm no longer supports SVID error handling (calling a user-provided |
44 | matherr function on error) or the _LIB_VERSION variable to control error | |
45 | handling. (SVID error handling and the _LIB_VERSION variable still work | |
46 | for binaries linked against older versions of the GNU C Library.) The | |
47 | libieee.a library is no longer provided. math.h no longer defines struct | |
48 | exception, or the macros X_TLOSS, DOMAIN, SING, OVERFLOW, UNDERFLOW, | |
49 | TLOSS, PLOSS and HUGE. | |
50 | ||
5a80d39d JM |
51 | * The libm functions pow10, pow10f and pow10l are no longer supported for |
52 | new programs. Programs should use the standard names exp10, exp10f and | |
53 | exp10l for these functions instead. | |
54 | ||
4fa9b3bf JM |
55 | * The mcontext_t type is no longer the same as struct sigcontext. On |
56 | platforms where it was previously the same, this changes the C++ name | |
57 | mangling for interfaces involving this type. | |
58 | ||
644d3857 JM |
59 | * The add-ons mechanism for building additional packages at the same time as |
60 | glibc has been removed. The --enable-add-ons configure option is now | |
61 | ignored. | |
62 | ||
00cdcf5a SP |
63 | Changes to build and runtime requirements: |
64 | ||
65 | [Add changes to build and runtime requirements here] | |
66 | ||
67 | Security related changes: | |
68 | ||
403143e1 FW |
69 | CVE-2009-5064: The ldd script would sometimes run the program under |
70 | examination directly, without preventing code execution through the | |
71 | dynamic linker. (The glibc project disputes that this is a security | |
72 | vulnerability; only trusted binaries must be examined using the ldd | |
73 | script.) | |
00cdcf5a | 74 | |
822f523b FW |
75 | CVE-2017-15670: The glob function, when invoked with GLOB_TILDE, |
76 | suffered from a one-byte overflow during ~ operator processing (either | |
77 | on the stack or the heap, depending on the length of the user name). | |
78 | Reported by Tim Rühsen. | |
c369d66e | 79 | |
914c9994 FW |
80 | CVE-2017-15671: The glob function, when invoked with GLOB_TILDE, |
81 | would sometimes fail to free memory allocated during ~ operator | |
82 | processing, leading to a memory leak and, potentially, to a denial | |
83 | of service. | |
84 | ||
a159b53f PE |
85 | The glob function, when invoked with GLOB_TILDE and without |
86 | GLOB_NOESCAPE, could write past the end of a buffer while | |
87 | unescaping user names. Reported by Tim Rühsen. | |
88 | ||
00cdcf5a SP |
89 | The following bugs are resolved with this release: |
90 | ||
91 | [The release manager will add the list generated by | |
92 | scripts/list-fixed-bugs.py just before the release.] | |
93 | ||
58557c22 SP |
94 | \f |
95 | Version 2.26 | |
96 | ||
2b2ccd0c ZW |
97 | Major new features: |
98 | ||
d5c3fafc DD |
99 | * A per-thread cache has been added to malloc. Access to the cache requires |
100 | no locks and therefore significantly accelerates the fast path to allocate | |
101 | and free small amounts of memory. Refilling an empty cache requires locking | |
102 | the underlying arena. Performance measurements show significant gains in a | |
103 | wide variety of user workloads. Workloads were captured using a special | |
104 | instrumented malloc and analyzed with a malloc simulator. Contributed by | |
105 | DJ Delorie with the help of Florian Weimer, and Carlos O'Donell. | |
106 | ||
925fac77 MF |
107 | * Unicode 10.0.0 Support: Character encoding, character type info, and |
108 | transliteration tables are all updated to Unicode 10.0.0, using | |
0b38d66a | 109 | generator scripts contributed by Mike FABIAN (Red Hat). |
a0e52598 MF |
110 | These updates cause user visible changes, especially the changes in |
111 | wcwidth for many emoji characters cause problems when emoji sequences | |
112 | are rendered with pango, see for example: | |
113 | https://bugzilla.gnome.org/show_bug.cgi?id=780669#c5 | |
58557c22 | 114 | |
2b2ccd0c ZW |
115 | * Collation of Hungarian has been overhauled and is now consistent with "The |
116 | Rules of Hungarian Orthography, 12th edition" (Bug 18934). Contributed by | |
117 | Egmont Koblinger. | |
e4e79484 | 118 | |
2b2ccd0c | 119 | * Improvements to the DNS stub resolver, contributed by Florian Weimer: |
025b33ae | 120 | |
7e368000 JM |
121 | - The GNU C Library will now detect when /etc/resolv.conf has been |
122 | modified and reload the changed configuration. The new resolver option | |
123 | “no-reload” (RES_NORELOAD) disables this behavior. | |
daeb1fa2 | 124 | |
7e368000 JM |
125 | - The GNU C Library now supports an arbitrary number of search domains |
126 | (configured using the “search” directive in /etc/resolv.conf); | |
127 | previously, there was a hard limit of six domains. For backward | |
128 | compatibility, applications that directly modify the ‘_res’ global | |
129 | object are still limited to six search domains. | |
139ace95 | 130 | |
7e368000 JM |
131 | - When the “rotate” (RES_ROTATE) resolver option is active, the GNU C |
132 | Library will now randomly pick a name server from the configuration as a | |
133 | starting point. (Previously, the second name server was always used.) | |
cd354a38 | 134 | |
2b2ccd0c ZW |
135 | * The tunables feature is now enabled by default. This allows users to tweak |
136 | behavior of the GNU C Library using the GLIBC_TUNABLES environment variable. | |
d8cee557 | 137 | |
2b2ccd0c ZW |
138 | * New function reallocarray, which resizes an allocated block (like realloc) |
139 | to the product of two sizes, with a guaranteed clean failure upon integer | |
140 | overflow in the multiplication. Originally from OpenBSD, contributed by | |
141 | Dennis Wölfing and Rüdiger Sonderfeld. | |
f0be25b6 | 142 | |
2b2ccd0c ZW |
143 | * New wrappers for the Linux-specific system calls preadv2 and pwritev2. |
144 | These are extended versions of preadv and pwritev, respectively, taking an | |
145 | additional flags argument. The set of supported flags depends on the | |
146 | running kernel; full support currently requires kernel 4.7 or later. | |
8082d91e | 147 | |
2b2ccd0c ZW |
148 | * posix_spawnattr_setflags now supports the flag POSIX_SPAWN_SETSID, to |
149 | create a new session ID for the spawned process. This feature is | |
150 | scheduled to be added to the next major revision of POSIX; for the time | |
151 | being, it is available under _GNU_SOURCE. | |
2e0bbbfb | 152 | |
2b2ccd0c ZW |
153 | * errno.h is now safe to use from C-preprocessed assembly language on all |
154 | supported operating systems. In this context, it will only define the | |
155 | Exxxx constants, as preprocessor macros expanding to integer literals. | |
12d2dd70 | 156 | |
2b2ccd0c | 157 | * On ia64, powerpc64le, x86-32, and x86-64, the math library now implements |
8d6cba41 JM |
158 | 128-bit floating point as defined by ISO/IEC/IEEE 60559:2011 (IEEE |
159 | 754-2008) and ISO/IEC TS 18661-3:2015. Contributed by Paul E. Murphy, | |
160 | Gabriel F. T. Gomes, Tulio Magno Quites Machado Filho, and Joseph Myers. | |
2c0b90ab | 161 | |
2b2ccd0c | 162 | To compile programs that use this feature, the compiler must support |
8d6cba41 JM |
163 | 128-bit floating point with the type name _Float128 (as defined by TS |
164 | 18661-3) or __float128 (the nonstandard name used by GCC for C++, and for | |
165 | C prior to version 7). _GNU_SOURCE or __STDC_WANT_IEC_60559_TYPES_EXT__ | |
166 | must be defined to make the new interfaces visible. | |
167 | ||
168 | The new functions and macros correspond to those present for other | |
169 | floating-point types (except for a few obsolescent interfaces not | |
170 | supported for the new type), with F128 or f128 suffixes; for example, | |
171 | strtof128, HUGE_VAL_F128 and cosf128. Following TS 18661-3, there are no | |
172 | printf or scanf formats for the new type; the strfromf128 and strtof128 | |
173 | interfaces should be used instead. | |
f819dbea | 174 | |
2b2ccd0c ZW |
175 | Deprecated and removed features, and other changes affecting compatibility: |
176 | ||
177 | * The synchronization that pthread_spin_unlock performs has been changed to | |
178 | now be equivalent to a C11 atomic store with release memory order to the | |
179 | spin lock's memory location. Previously, several (but not all) | |
180 | architectures used stronger synchronization (e.g., containing what is | |
181 | often called a full barrier). This change can improve performance, but | |
182 | may affect odd fringe uses of spin locks that depend on the previous | |
183 | behavior (e.g., using spin locks as atomic variables to try to implement | |
184 | Dekker's mutual exclusion algorithm). | |
185 | ||
186 | * The port to Native Client running on ARMv7-A (--host=arm-nacl) has been | |
187 | removed. | |
188 | ||
189 | * Sun RPC is deprecated. The rpcgen program, librpcsvc, and Sun RPC headers | |
7e368000 | 190 | will only be built and installed when the GNU C Library is configured with |
2b2ccd0c ZW |
191 | --enable-obsolete-rpc. This allows alternative RPC implementations, such |
192 | as TIRPC or rpcsvc-proto, to be used. | |
193 | ||
194 | * The NIS(+) name service modules, libnss_nis, libnss_nisplus, and | |
195 | libnss_compat, are deprecated, and will not be built or installed by | |
196 | default. | |
197 | ||
198 | The NIS(+) support library, libnsl, is also deprecated. By default, a | |
199 | compatibility shared library will be built and installed, but not headers | |
200 | or development libraries. Only a few NIS-related programs require this | |
7e368000 JM |
201 | library. (In particular, the GNU C Library has never required programs |
202 | that use 'gethostbyname' to be linked with libnsl.) | |
2b2ccd0c ZW |
203 | |
204 | Replacement implementations based on TIRPC, which additionally support | |
205 | IPv6, are available from <https://github.com/thkukuk/>. The configure | |
206 | option --enable-obsolete-nsl will cause libnsl's headers, and the NIS(+) | |
207 | name service modules, to be built and installed. | |
208 | ||
209 | * The DNS stub resolver no longer performs EDNS fallback. If EDNS or DNSSEC | |
210 | support is enabled, the configured recursive resolver must support EDNS. | |
211 | (Responding to EDNS-enabled queries with responses which are not | |
212 | EDNS-enabled is fine, but FORMERR responses are not.) | |
213 | ||
214 | * res_mkquery and res_nmkquery no longer support the IQUERY opcode. DNS | |
215 | servers have not supported this opcode for a long time. | |
5b757a51 | 216 | |
6781d8e6 FW |
217 | * The _res_opcodes variable has been removed from libresolv. It had been |
218 | exported by accident. | |
219 | ||
2b2ccd0c ZW |
220 | * <string.h> no longer includes inline versions of any string functions, |
221 | as this kind of optimization is better done by the compiler. The macros | |
222 | __USE_STRING_INLINES and __NO_STRING_INLINES no longer have any effect. | |
223 | ||
224 | * The nonstandard header <xlocale.h> has been removed. Most programs should | |
225 | use <locale.h> instead. If you have a specific need for the definition of | |
226 | locale_t with no other declarations, please contact | |
227 | libc-alpha@sourceware.org and explain. | |
228 | ||
229 | * The obsolete header <sys/ultrasound.h> has been removed. | |
230 | ||
231 | * The obsolete signal constant SIGUNUSED is no longer defined by <signal.h>. | |
232 | ||
233 | * The obsolete function cfree has been removed. Applications should use | |
234 | free instead. | |
235 | ||
236 | * The stack_t type no longer has the name struct sigaltstack. This changes | |
237 | the C++ name mangling for interfaces involving this type. | |
238 | ||
239 | * The ucontext_t type no longer has the name struct ucontext. This changes | |
240 | the C++ name mangling for interfaces involving this type. | |
241 | ||
242 | * On M68k GNU/Linux and MIPS GNU/Linux, the fpregset_t type no longer has | |
243 | the name struct fpregset. On Nios II GNU/Linux, the mcontext_t type no | |
244 | longer has the name struct mcontext. On SPARC GNU/Linux, the struct | |
245 | mc_fq, struct rwindow, struct fpq and struct fq types are no longer | |
246 | defined in sys/ucontext.h, the mc_fpu_t type no longer has the name struct | |
247 | mc_fpu, the gwindows_t type no longer has the name struct gwindows and the | |
248 | fpregset_t type no longer has the name struct fpu. This changes the C++ | |
249 | name mangling for interfaces involving those types. | |
250 | ||
251 | * On S/390 GNU/Linux, the constants defined by <sys/ptrace.h> have been | |
252 | synced with the kernel: | |
253 | ||
254 | - PTRACE_GETREGS, PTRACE_SETREGS, PTRACE_GETFPREGS and PTRACE_SETFPREGS | |
255 | are not supported on this architecture and have been removed. | |
256 | ||
257 | - PTRACE_SINGLEBLOCK, PTRACE_SECCOMP_GET_FILTER, PTRACE_PEEKUSR_AREA, | |
258 | PTRACE_POKEUSR_AREA, PTRACE_GET_LAST_BREAK, PTRACE_ENABLE_TE, | |
259 | PTRACE_DISABLE_TE and PTRACE_TE_ABORT_RAND have been added. | |
260 | ||
261 | Programs that assume the GET/SETREGS ptrace requests are universally | |
262 | available will now fail to build, instead of malfunctioning at runtime. | |
263 | ||
264 | Changes to build and runtime requirements: | |
265 | ||
266 | * Linux kernel 3.2 or later is required at runtime, on all architectures | |
267 | supported by that kernel. (This is a change from version 2.25 only for | |
268 | x86-32 and x86-64.) | |
269 | ||
7e368000 | 270 | * GNU Binutils 2.25 or later is now required to build the GNU C Library. |
2b2ccd0c | 271 | |
7e368000 JM |
272 | * On most architectures, GCC 4.9 or later is required to build the GNU C |
273 | Library. On powerpc64le, GCC 6.2 or later is required. | |
2b2ccd0c ZW |
274 | |
275 | Older GCC versions and non-GNU compilers are still supported when | |
7e368000 JM |
276 | compiling programs that use the GNU C Library. (We do not know exactly |
277 | how old, and some GNU extensions to C may be _de facto_ required. If you | |
278 | are interested in helping us make this statement less vague, please | |
2b2ccd0c | 279 | contact libc-alpha@sourceware.org.) |
aef16cc8 | 280 | |
58557c22 SP |
281 | Security related changes: |
282 | ||
e14a2772 | 283 | * The DNS stub resolver limits the advertised UDP buffer size to 1200 bytes, |
e1113af3 SP |
284 | to avoid fragmentation-based spoofing attacks (CVE-2017-12132). |
285 | ||
286 | * LD_LIBRARY_PATH is now ignored in binaries running in privileged AT_SECURE | |
287 | mode to guard against local privilege escalation attacks (CVE-2017-1000366). | |
288 | ||
289 | * Avoid printing a backtrace from the __stack_chk_fail function since it is | |
290 | called on a corrupt stack and a backtrace is unreliable on a corrupt stack | |
291 | (CVE-2010-3192). | |
292 | ||
293 | * A use-after-free vulnerability in clntudp_call in the Sun RPC system has been | |
294 | fixed (CVE-2017-12133). | |
58557c22 SP |
295 | |
296 | The following bugs are resolved with this release: | |
297 | ||
e061bd17 SP |
298 | [984] network: Respond to changed resolv.conf in gethostbyname |
299 | [5010] network: sunrpc service cleanup causes unwanted port mapper traffic | |
300 | [12068] localedata: sc_IT: misspelled yesexpr/day/abday/mon/abmon/date_fmt | |
301 | fields | |
302 | [12189] libc: __stack_chk_fail should not attempt a backtrace | |
303 | (CVE-2010-3192) | |
304 | [14096] time: Race condition on timezone/tst-timezone.out | |
305 | [14172] localedata: az_IR: new locale | |
306 | [14995] build: glibc fails to build if gold is the default linker, even if | |
307 | ld.bfd is available | |
308 | [15998] build: [powerpc] Set arch_minimum_kernel for powerpc LE | |
309 | [16637] network: inet_pton function is accepting IPv6 with bad format | |
310 | [16640] string: string/strtok.c: undefined behaviour inconsistent between | |
311 | x86 and other generic code | |
312 | [16875] localedata: ko_KR: fix lang_name | |
313 | [17225] localedata: ar_SY: localized month names for May and June are | |
314 | incorrect | |
315 | [17297] localedata: da_DK: wrong date_fmt string | |
316 | [18907] stdio: Incorrect order of __wur __THROW in <printf.h> | |
317 | [18934] localedata: hu_HU: collate: fix multiple bugs and add tests | |
318 | [18988] nptl: pthread wastes memory with mlockall(MCL_FUTURE) | |
319 | [19066] localedata: ar_SA abbreviated day and month names are in English | |
320 | [19569] network: resolv: Support an arbitrary number of search domains | |
321 | [19570] network: Implement random DNS server selection in the stub | |
322 | resolver | |
323 | [19838] locale: localedef fails on PA-RISC | |
324 | [19919] localedata: iso14651_t1_common: Correct the Malayalam sorting | |
325 | order of 0D36 and 0D37 | |
326 | [19922] localedata: iso14651_t1_common: Define collation for Malayalam | |
327 | chillu characters | |
328 | [20098] libc: FAIL: debug/backtrace-tst on hppa | |
329 | [20257] network: sunrpc: clntudp_call does not enforce timeout when | |
330 | receiving data | |
331 | [20275] localedata: locale day/abday/mon/abmon should not have trailing | |
332 | whitespace | |
333 | [20313] localedata: Update locale data to Unicode 9.0 | |
334 | [20424] manual: Document how to provide a malloc replacement | |
335 | [20496] localedata: agr_PE: new language locale Awajún / Aguaruna (agr) | |
336 | for Peru | |
337 | [20686] locale: Add el_GR@euro to SUPPORTED. | |
338 | [20831] dynamic-link: _dl_map_segments does not test for __mprotect | |
339 | failures consistently | |
340 | [21015] dynamic-link: Document and fix --enable-bind-now | |
341 | [21016] nptl: pthread_cond support is broken on hppa | |
342 | [21029] libc: glibc-2.23 (and later) fails to compile with -fno-omit- | |
343 | frame-pointer on i386 | |
344 | [21049] libc: segfault in longjmp_chk() due to clobbered processor | |
345 | register | |
346 | [21075] libc: unused assigment to %g4 in sparc/sparc{64,32}/clone.S | |
347 | [21088] libc: Build fails with --enable-static-nss | |
348 | [21094] math: cosf(1.57079697) has 3 ulp error on targets where the | |
349 | generic c code is used | |
350 | [21109] libc: Tunables broken on big-endian | |
351 | [21112] math: powf has large ulp errors with base close to 1 and exponent | |
352 | around 4000 | |
353 | [21115] network: sunrpc: Use-after-free in error path in clntudp_call | |
354 | (CVE-2017-12133) | |
355 | [21120] malloc: glibc malloc is incompatible with GCC 7 | |
356 | [21130] math: Incorrect return from y0l (-inf) and y1l (-inf) when linking | |
357 | with -lieee | |
358 | [21134] math: Exception (divide by zero) not set for y0/y1 (0.0) and y0/y1 | |
359 | (-0.0) when linking with -lieee | |
360 | [21171] math: log10, log2 and lgamma return incorrect results | |
361 | [21179] libc: handle R_SPARC_DISP64 and R_SPARC_REGISTER relocs | |
362 | [21182] libc: __memchr_sse2: regression in glibc-2.25 on i686 | |
363 | [21207] localedata: ce_RU: update weekdays from CLDR | |
364 | [21209] dynamic-link: LD_HWCAP_MASK read in setuid binaries | |
365 | [21217] localedata: Update months from CLDR-31 | |
366 | [21232] libc: miss posix_fadvise64 on MIPS64 when static linking | |
367 | [21243] libc: support_delete_temp_file should issue warning for failed | |
368 | remove() | |
369 | [21244] libc: support resolv_test_start() socket fd close should be | |
370 | checked for errors. | |
371 | [21253] libc: localedef randomly segfaults when using -fstack-check due to | |
372 | new posix_spawn implementation | |
373 | [21258] dynamic-link: Branch predication in _dl_runtime_resolve_avx512_opt | |
374 | leads to lower CPU frequency | |
375 | [21259] libc: [alpha] termios.h missing IXANY for POSIX | |
376 | [21261] libc: [sparc64] bits/setjmp.h namespace | |
377 | [21267] network: [mips] bits/socket.h IOC* namespace | |
378 | [21268] libc: [alpha] termios.h NL2, NL3 namespace | |
379 | [21270] libc: mmap64 silently truncates large offset values | |
380 | [21275] libc: posix_spawn always crashes on ia64 now | |
381 | [21277] libc: [alpha] termios.h missing IUCLC for UNIX98 and older | |
382 | [21280] math: [powerpc] logbl for POWER7 return incorrect results | |
383 | [21289] libc: Incorrect declaration for 32-bit platforms with | |
384 | _FILE_OFFSET_BITS=64 causes build error | |
385 | [21295] network: GETAI(AF_UNSPEC) drops IPv6 addresses if nss module does | |
386 | not support gethostbyname4_r | |
387 | [21298] nptl: rwlock can deadlock on frequent reader/writer phase | |
388 | switching | |
389 | [21338] malloc: mallopt M_ARENA_MAX doesn't set the maximum number of | |
390 | arenas | |
391 | [21340] libc: Support POSIX_SPAWN_SETSID | |
392 | [21357] libc: unwind-dw2-fde deadlock when using AddressSanitizer | |
393 | [21359] network: ns_name_pack needs additional byte in destination buffer | |
394 | [21361] network: resolv: Reduce advertised EDNS0 buffer size to guard | |
395 | against fragmentation attacks (CVE-2017-12132) | |
396 | [21369] network: resolv: Remove EDNS fallback | |
397 | [21371] libc: Missing timespec definition when compiled with _XOPEN_SOURCE | |
398 | and _POSIX_C_SOURCE | |
399 | [21386] nptl: Assertion in fork for distinct parent PID is incorrect | |
400 | [21391] dynamic-link: x86: Set dl_platform and dl_hwcap from CPU features | |
401 | [21393] stdio: Missing dup3 error check in freopen, freopen64 | |
402 | [21396] libc: Use AVX2 memcpy/memset on Skylake server | |
403 | [21399] localedata: Bad description for U00EC in | |
404 | localedata/charmaps/CP1254 | |
405 | [21411] malloc: realloc documentation error | |
406 | [21426] network: sys/socket.h uio.h namespace | |
407 | [21428] libc: [aarch64] tst-backtrace5 testsuite failure | |
408 | [21445] libc: signal.h bsd_signal namespace | |
409 | [21455] network: Network headers stdint.h namespace | |
410 | [21474] network: resolv: res_init does not use RES_DFLRETRY (2) but 4 for | |
411 | retry value | |
412 | [21475] network: resolv: Overlong search path is truncated mid-label | |
413 | [21511] libc: sigstack namespace | |
414 | [21512] libc: clone() ends up calling exit_group() through _exit() wrapper | |
415 | [21514] libc: sysdeps/unix/sysv/linux/sys/syscall.h:31:27: fatal error: | |
416 | bits/syscall.h: No such file or directory | |
417 | [21517] libc: struct sigaltstack namespace | |
418 | [21528] dynamic-link: Duplicated minimal strtoul implementations in ld.so | |
419 | [21533] localedata: Update locale data to Unicode 10.0 | |
420 | [21537] libc: | |
421 | ../sysdeps/unix/sysv/linux/s390/s390-32/__makecontext_ret.S:44: Error: | |
422 | junk at end of line, first unrecognized character is `@' | |
423 | [21538] libc: SIG_HOLD missing for XPG4 | |
424 | [21539] libc: S390: Mismatch between kernel and glibc ptrace.h with | |
425 | request 12: PTRACE_SINGLEBLOCK vs PTRACE_GETREGS. | |
426 | [21542] libc: Use conservative default for sysconf (_SC_NPROCESSORS_ONLN) | |
427 | [21543] libc: sigevent namespace | |
428 | [21548] libc: [mips] get/set/make/swap context for MIPS O32 assume wrong | |
429 | size for general purpose registers in mcontext_t structure | |
430 | [21550] libc: sigwait namespace | |
431 | [21552] libc: XPG4 bsd_signal namespace | |
432 | [21554] libc: sigpause namespace | |
433 | [21560] libc: sys/wait.h signal.h namespace | |
434 | [21561] libc: waitid namespace | |
435 | [21573] nptl: GCC 7: /usr/bin/install: cannot remove | |
436 | '/usr/include/stdlib.h': Permission denied | |
437 | [21575] libc: sys/wait.h missing struct rusage definition | |
438 | [21584] libc: sigaltstack etc namespace | |
439 | [21597] libc: siginterrupt namespace | |
440 | [21607] math: hppa: FAIL: math/test-tgmath | |
441 | [21609] dynamic-link: Incomplete workaround for GCC __tls_get_addr ABI | |
442 | issue on x86-64 | |
443 | [21622] libc: [tile] missing SA_* for POSIX.1:2008 | |
444 | [21624] dynamic-link: ld.so: Unsafe alloca allows local attackers to alias | |
445 | stack and heap (CVE-2017-1000366) | |
446 | [21625] libc: wait3 namespace | |
447 | [21654] nss: Incorrect pointer alignment in NSS group merge result | |
448 | construction | |
449 | [21657] network: Parse interface zone id for node-local multicast | |
450 | [21662] string: memcmp-avx2-movbe.S lacks saturating subtraction for | |
451 | between_2_3 | |
452 | [21666] libc: .symver is used on common symbol | |
453 | [21668] network: resolv: res_init cross-thread broadcast introduces race | |
454 | conditions | |
455 | [21687] math: tgmath.h totalorder, totalordermag return type | |
456 | [21694] locale: Current Glibc Locale Does Not Support Tok-Pisin and Fiji | |
457 | Hindi Locale | |
458 | [21696] libc: Incorrect assumption of of __cpu_mask in | |
459 | posix/sched_cpucount.c | |
460 | [21697] libc: sysdeps/posix/spawni.c: 2 * suspicious condition ? | |
461 | [21706] localedata: yesstr and nostr are missing for Breton [LC_MESSAGES] | |
462 | locale | |
463 | [21707] math: ppc64le: Invalid IFUNC resolver from libgcc calls getauxval, | |
464 | leading to relocation crash | |
465 | [21709] libc: resolv_conf.c:552: update_from_conf: Assertion | |
466 | `resolv_conf_matches (resp, conf)' failed. | |
467 | [21710] localedata: Added Samoan language locale for Samoa | |
468 | [21711] localedata: Pashto yesstr/nostr locale are missing | |
469 | [21715] nptl: sysdeps/nptl/bits/pthreadtypes.h: typedef guard | |
470 | __have_pthread_attr_t can cause redefinition of typedef ‘pthread_attr_t’ | |
471 | [21721] localedata: Incorrect Full Weekday names for ks_IN@devanagari | |
472 | [21723] localedata: yesstr/nostr missing for Chinese language locale | |
473 | [21724] localedata: yesstr and nostr are missing for Xhosa [LC_MESSAGES] | |
474 | locale | |
475 | [21727] localedata: yesstr and nostr are missing for Tsonga [LC_MESSAGES] | |
476 | locale | |
477 | [21728] localedata: New Locale for Tongan language | |
478 | [21729] localedata: incorrect LC_NAME fields for hi_IN | |
479 | [21733] localedata: yesstr and nostr are missing for zh_HK | |
480 | [21734] localedata: Missing yesstr and nostr are for kw_GB | |
481 | [21738] libc: misc/tst-preadvwritev2 and misc/tst-preadvwritev64v2 fail | |
482 | [21741] libc: Undefined __memmove_chk_XXX and __memset_chk_XXX in libc.a | |
483 | [21742] libc: _dl_num_cache_relocations is undefined in libc.a | |
484 | [21743] localedata: ks_IN@devanagari: abday strings mismatch the day | |
485 | strings | |
486 | [21744] libc: Tests failing on --enable-tunables --enable-stack- | |
487 | protector=all | |
488 | [21749] localedata: Wrong abbreviated day name (“abday”) for | |
489 | ar_JO/ar_LB/ar_SY | |
490 | [21756] localedata: missing yesstr, nostr for nds_DE and nds_NL | |
491 | [21757] localedata: missing yesstr, nostr for pap_AW and pap_CW | |
492 | [21759] localedata: missing yesstr and nostr for Tigrinya | |
493 | [21760] localedata: Fix LC_MESSAGES and LC_ADDRESS for anp_IN | |
494 | [21766] localedata: Wrong LC_MESSAGES for om_ET Locale | |
495 | [21767] localedata: Missing Bislama locales | |
496 | [21768] localedata: Missing yesstr and nostr for aa_ET | |
497 | [21770] localedata: Missing Field in li_NL | |
498 | [21778] nptl: Robust mutex may deadlock | |
499 | [21779] libc: MicroBlaze segfaults when loading libpthread | |
500 | [21783] localedata: Fix int_select international_call_prefixes | |
501 | [21784] localedata: Inconsistency in country_isbn | |
502 | [21788] localedata: Missing Country Postal Abbreviations | |
503 | [21794] localedata: Added-country_isbn-for-Italy | |
504 | [21795] localedata: Add/Fix country_isbn for France | |
505 | [21796] localedata: Added country_isbn for Republic of Korea | |
506 | [21797] localedata: Fix inconsistency in country_isbn and missing prefixes | |
507 | [21799] localedata: Added int_select international_call_prefixes | |
508 | [21801] localedata: Added int_select international_call_prefixes | |
509 | [21804] nptl: Double semicolon in thread-shared-types.h | |
510 | [21807] localedata: LC_ADDRESS fix for pap_CW | |
511 | [21808] localedata: Fix LC_ADDRESS for pap_AW | |
512 | [21821] localedata: Added country_name in mai_IN | |
513 | [21822] localedata: Fix LC_TIME for mai_IN | |
514 | [21823] localedata: missing yesstr, nostr for sa_IN | |
515 | [21825] localedata: Fix name_mrs for mag_IN | |
516 | [21828] localedata: 2.26 changelog should mention user visible changes | |
517 | with unicode 9.0 | |
518 | [21835] localedata: Added Maithili language locale for Nepal | |
519 | [21838] localedata: Removed redundant data for the_NP | |
520 | [21839] localedata: Fix LC_MONETARY for ta_LK | |
521 | [21844] localedata: Fix Latin characters and Months Sequence. | |
522 | [21848] localedata: Fix mai_NP Title Name | |
58557c22 | 523 | |
d5b396c1 | 524 | \f |
e720d3d9 CD |
525 | Version 2.25 |
526 | ||
48789000 JM |
527 | * The feature test macro __STDC_WANT_LIB_EXT2__, from ISO/IEC TR |
528 | 24731-2:2010, is supported to enable declarations of functions from that | |
529 | TR. Note that not all functions from that TR are supported by the GNU C | |
530 | Library. | |
e720d3d9 | 531 | |
bf91be88 JM |
532 | * The feature test macro __STDC_WANT_IEC_60559_BFP_EXT__, from ISO/IEC TS |
533 | 18661-1:2014, is supported to enable declarations of functions and macros | |
a5ac5676 | 534 | from that TS. Note that not all features from that TS are supported by |
bf91be88 JM |
535 | the GNU C Library. |
536 | ||
412cb261 JM |
537 | * The feature test macro __STDC_WANT_IEC_60559_FUNCS_EXT__, from ISO/IEC TS |
538 | 18661-4:2015, is supported to enable declarations of functions and macros | |
539 | from that TS. Note that most features from that TS are not supported by | |
540 | the GNU C Library. | |
541 | ||
c0307377 ZW |
542 | * The nonstandard feature selection macros _REENTRANT and _THREAD_SAFE are |
543 | now treated as compatibility synonyms for _POSIX_C_SOURCE=199506L. | |
544 | Since the GNU C Library defaults to a much newer revision of POSIX, this | |
545 | will only affect programs that specifically request an old conformance | |
546 | mode. For instance, a program compiled with -std=c89 -D_REENTRANT will | |
547 | see a change in the visible declarations, but a program compiled with | |
548 | just -D_REENTRANT, or -std=c99 -D_POSIX_C_SOURCE=200809L -D_REENTRANT, | |
549 | will not. | |
550 | ||
551 | Some C libraries once required _REENTRANT and/or _THREAD_SAFE to be | |
552 | defined by all multithreaded code, but glibc has not required this for | |
553 | many years. | |
554 | ||
dbab6577 ZW |
555 | * The inclusion of <sys/sysmacros.h> by <sys/types.h> is deprecated. This |
556 | means that in a future release, the macros “major”, “minor”, and “makedev” | |
557 | will only be available from <sys/sysmacros.h>. | |
558 | ||
559 | These macros are not part of POSIX nor XSI, and their names frequently | |
560 | collide with user code; see for instance glibc bug 19239 and Red Hat bug | |
561 | 130601. <stdlib.h> includes <sys/types.h> under _GNU_SOURCE, and C++ code | |
562 | presently cannot avoid being compiled under _GNU_SOURCE, exacerbating the | |
563 | problem. | |
564 | ||
ec94343f | 565 | * New <fenv.h> features from TS 18661-1:2014 are added to libm: the |
c0b43536 JM |
566 | fesetexcept, fetestexceptflag, fegetmode and fesetmode functions, the |
567 | femode_t type and the FE_DFL_MODE and FE_SNANS_ALWAYS_SIGNAL macros. | |
5146356f | 568 | |
a292f45a JM |
569 | * Integer width macros from TS 18661-1:2014 are added to <limits.h>: |
570 | CHAR_WIDTH, SCHAR_WIDTH, UCHAR_WIDTH, SHRT_WIDTH, USHRT_WIDTH, INT_WIDTH, | |
5b17fd0d JM |
571 | UINT_WIDTH, LONG_WIDTH, ULONG_WIDTH, LLONG_WIDTH, ULLONG_WIDTH; and to |
572 | <stdint.h>: INT8_WIDTH, UINT8_WIDTH, INT16_WIDTH, UINT16_WIDTH, | |
573 | INT32_WIDTH, UINT32_WIDTH, INT64_WIDTH, UINT64_WIDTH, INT_LEAST8_WIDTH, | |
574 | UINT_LEAST8_WIDTH, INT_LEAST16_WIDTH, UINT_LEAST16_WIDTH, | |
575 | INT_LEAST32_WIDTH, UINT_LEAST32_WIDTH, INT_LEAST64_WIDTH, | |
576 | UINT_LEAST64_WIDTH, INT_FAST8_WIDTH, UINT_FAST8_WIDTH, INT_FAST16_WIDTH, | |
577 | UINT_FAST16_WIDTH, INT_FAST32_WIDTH, UINT_FAST32_WIDTH, INT_FAST64_WIDTH, | |
578 | UINT_FAST64_WIDTH, INTPTR_WIDTH, UINTPTR_WIDTH, INTMAX_WIDTH, | |
579 | UINTMAX_WIDTH, PTRDIFF_WIDTH, SIG_ATOMIC_WIDTH, SIZE_WIDTH, WCHAR_WIDTH, | |
580 | WINT_WIDTH. | |
a292f45a | 581 | |
d942e95c JM |
582 | * New <math.h> features are added from TS 18661-1:2014: |
583 | ||
f82a4bdb JM |
584 | - Signaling NaN macros: SNANF, SNAN, SNANL. |
585 | ||
423c2b9d JM |
586 | - Nearest integer functions: roundeven, roundevenf, roundevenl, fromfp, |
587 | fromfpf, fromfpl, ufromfp, ufromfpf, ufromfpl, fromfpx, fromfpxf, | |
588 | fromfpxl, ufromfpx, ufromfpxf, ufromfpxl. | |
41c67149 | 589 | |
55a38f82 JM |
590 | - llogb functions: the llogb, llogbf and llogbl functions, and the |
591 | FP_LLOGB0 and FP_LLOGBNAN macros. | |
592 | ||
525f8039 JM |
593 | - Max-min magnitude functions: fmaxmag, fmaxmagf, fmaxmagl, fminmag, |
594 | fminmagf, fminmagl. | |
595 | ||
1e7c8fcc JM |
596 | - Comparison macros: iseqsig. |
597 | ||
29cb9293 | 598 | - Classification macros: iscanonical, issubnormal, iszero. |
d942e95c | 599 | |
cc6a8d74 JM |
600 | - Total order functions: totalorder, totalorderf, totalorderl, |
601 | totalordermag, totalordermagf, totalordermagl. | |
5e9d98a3 | 602 | |
eaf5ad0b JM |
603 | - Canonicalize functions: canonicalize, canonicalizef, canonicalizel. |
604 | ||
eb3c12c7 | 605 | - NaN functions: getpayload, getpayloadf, getpayloadl, setpayload, |
457663a7 | 606 | setpayloadf, setpayloadl, setpayloadsig, setpayloadsigf, setpayloadsigl. |
f8e8b8ed | 607 | |
f3b904d9 JM |
608 | * The functions strfromd, strfromf, and strfroml, from ISO/IEC TS 18661-1:2014, |
609 | are added to libc. They convert a floating-point number into string. | |
610 | ||
cecbc796 NA |
611 | * Most of glibc can now be built with the stack smashing protector enabled. |
612 | It is recommended to build glibc with --enable-stack-protector=strong. | |
613 | Implemented by Nick Alcock (Oracle). | |
614 | ||
ea1bd74d ZW |
615 | * The function explicit_bzero, from OpenBSD, has been added to libc. It is |
616 | intended to be used instead of memset() to erase sensitive data after use; | |
617 | the compiler will not optimize out calls to explicit_bzero even if they | |
618 | are "unnecessary" (in the sense that no _correct_ program can observe the | |
619 | effects of the memory clear). | |
620 | ||
b0216d3e JM |
621 | * On ColdFire, MicroBlaze, Nios II and SH3, the float_t type is now defined |
622 | to float instead of double. This does not affect the ABI of any libraries | |
623 | that are part of the GNU C Library, but may affect the ABI of other | |
624 | libraries that use this type in their interfaces. | |
625 | ||
f3b904d9 JM |
626 | * On x86_64, when compiling with -mfpmath=387 or -mfpmath=sse+387, the |
627 | float_t and double_t types are now defined to long double instead of float | |
628 | and double. These options are not the default, and this does not affect | |
629 | the ABI of any libraries that are part of the GNU C Library, but it may | |
630 | affect the ABI of other libraries that use this type in their interfaces, | |
631 | if they are compiled or used with those options. | |
6962682f | 632 | |
92dcaa3e FW |
633 | * The getentropy and getrandom functions, and the <sys/random.h> header file |
634 | have been added. | |
635 | ||
705a79f8 FW |
636 | * The buffer size for byte-oriented stdio streams is now limited to 8192 |
637 | bytes by default. Previously, on Linux, the default buffer size on most | |
638 | file systems was 4096 bytes (and thus remains unchanged), except on | |
639 | network file systems, where the buffer size was unpredictable and could be | |
640 | as large as several megabytes. | |
641 | ||
4d728087 FW |
642 | * The <sys/quota.h> header now includes the <linux/quota.h> header. Support |
643 | for the Linux quota interface which predates kernel version 2.4.22 has | |
644 | been removed. | |
645 | ||
e863cce5 FW |
646 | * The malloc_get_state and malloc_set_state functions have been removed. |
647 | Already-existing binaries that dynamically link to these functions will | |
648 | get a hidden implementation in which malloc_get_state is a stub. As far | |
649 | as we know, these functions are used only by GNU Emacs and this change | |
650 | will not adversely affect already-built Emacs executables. Any undumped | |
651 | Emacs executables, which normally exist only during an Emacs build, should | |
652 | be rebuilt by re-running “./configure; make” in the Emacs build tree. | |
653 | ||
7ec47a85 FW |
654 | * The “ip6-dotint” and “no-ip6-dotint” resolver options, and the |
655 | corresponding RES_NOIP6DOTINT flag from <resolv.h> have been removed. | |
656 | “no-ip6-dotint” had already been the default, and support for the | |
657 | “ip6-dotint” option was removed from the Internet in 2006. | |
658 | ||
099191b1 | 659 | * The "ip6-bytestring" resolver option and the corresponding RES_USEBSTRING |
5140d036 FW |
660 | flag from <resolv.h> have been removed. The option relied on a |
661 | backwards-incompatible DNS extension which was never deployed on the | |
662 | Internet. | |
663 | ||
bbe989ee FW |
664 | * The flags RES_AAONLY, RES_PRIMARY, RES_NOCHECKNAME, RES_KEEPTSIG, |
665 | RES_BLAST defined in the <resolv.h> header file have been deprecated. | |
666 | They were already unimplemented. | |
bfbd1de1 | 667 | |
b76e0659 FW |
668 | * The "inet6" option in /etc/resolv.conf and the RES_USE_INET6 flag for |
669 | _res.flags are deprecated. The flag was standardized in RFC 2133, but | |
670 | removed again from the IETF name lookup interface specification in RFC | |
671 | 2553. Applications should use getaddrinfo instead. | |
672 | ||
3a2a1d2c FW |
673 | * DNSSEC-related declarations and definitions have been removed from the |
674 | <arpa/nameser.h> header file, and libresolv will no longer attempt to | |
675 | decode the data part of DNSSEC record types. Previous versions of glibc | |
676 | only implemented minimal support for the previous version of DNSSEC, which | |
677 | is incompatible with the currently deployed version. | |
678 | ||
be728303 FW |
679 | * The resource record type classification macros ns_t_qt_p, ns_t_mrr_p, |
680 | ns_t_rr_p, ns_t_udp_p, ns_t_xfr_p have been removed from the | |
681 | <arpa/nameser.h> header file because the distinction between RR types and | |
682 | meta-RR types is not officially standardized, subject to revision, and | |
683 | thus not suitable for encoding in a macro. | |
684 | ||
6815a33d FW |
685 | * The types res_sendhookact, res_send_qhook, re_send_rhook, and the qhook |
686 | and rhook members of the res_state type in <resolv.h> have been removed. | |
687 | The glibc stub resolver did not support these hooks, but the header file | |
688 | did not reflect that. | |
689 | ||
022dfdce SL |
690 | * For multi-arch support it is recommended to use a GCC which has |
691 | been built with support for GNU indirect functions. This ensures | |
692 | that correct debugging information is generated for functions | |
693 | selected by IFUNC resolvers. This support can either be enabled by | |
694 | configuring GCC with '--enable-gnu-indirect-function', or by | |
695 | enabling it by default by setting 'default_gnu_indirect_function' | |
696 | variable for a particular architecture in the GCC source file | |
697 | 'gcc/config.gcc'. | |
698 | ||
23b5cae1 MG |
699 | * GDB pretty printers have been added for mutex and condition variable |
700 | structures in POSIX Threads. When installed and loaded in gdb these pretty | |
701 | printers show various pthread variables in human-readable form when read | |
702 | using the 'print' or 'display' commands in gdb. | |
703 | ||
7715d3ab SP |
704 | * Tunables feature added to allow tweaking of the runtime for an application |
705 | program. This feature can be enabled with the '--enable-tunables' configure | |
706 | flag. The GNU C Library manual has details on usage and README.tunables has | |
707 | instructions on adding new tunables to the library. | |
708 | ||
0cea3587 SP |
709 | * A new version of condition variables functions have been implemented in |
710 | the NPTL implementation of POSIX Threads to provide stronger ordering | |
711 | guarantees. | |
712 | ||
713 | * A new version of pthread_rwlock functions have been implemented to use a more | |
714 | scalable algorithm primarily through not using a critical section anymore to | |
715 | make state changes. | |
716 | ||
e720d3d9 CD |
717 | Security related changes: |
718 | ||
fc82b0a2 | 719 | * On ARM EABI (32-bit), generating a backtrace for execution contexts which |
4d047efd FW |
720 | have been created with makecontext could fail to terminate due to a |
721 | missing .cantunwind annotation. This has been observed to lead to a hang | |
722 | (denial of service) in some Go applications compiled with gccgo. Reported | |
056dd72a | 723 | by Andreas Schwab. (CVE-2016-6323) |
e720d3d9 | 724 | |
fc82b0a2 FW |
725 | * The DNS stub resolver functions would crash due to a NULL pointer |
726 | dereference when processing a query with a valid DNS question type which | |
727 | was used internally in the implementation. The stub resolver now uses a | |
728 | question type which is outside the range of valid question type values. | |
729 | (CVE-2015-5180) | |
730 | ||
e720d3d9 CD |
731 | The following bugs are resolved with this release: |
732 | ||
4e054e6b SP |
733 | [4099] stdio: Overly agressive caching by stream i/o functions. |
734 | [7065] build: Support building glibc with -fstack-protector or -fstack- | |
735 | protector-all | |
736 | [9842] localedata: en_CA: incorrect date format | |
737 | [13165] nptl: pthread_cond_wait() can consume a signal that was sent | |
738 | before it started waiting | |
739 | [14139] manual: Do not hardcode platform names in manual/libm-err-tab.pl | |
740 | [15765] nptl: sem_open is wrongly a cancellation point | |
741 | [16421] network: IN6_IS_ADDR_UNSPECIFIED can use undefined s6_addr32 | |
742 | [16458] libc: endian.h and netinet/in.h byte order macros return values of | |
743 | wrong type | |
744 | [16628] dynamic-link: Segfault after a binary without pthread dlopen()s a | |
745 | library linked with pthread | |
746 | [16630] nptl: Use SYSENTER for pthread_cond_broadcast/signal() (i.e. fix | |
747 | "FIXME: Ingo" issue) | |
748 | [16907] libc: <argp.h> compiled with --std=cXX disables __attribute__ | |
749 | [17252] libc: getrandom and getentropy syscall | |
750 | [17730] malloc: thread-local storage is sometimes improperly free()'d | |
751 | after being __libc_memalign()'d | |
752 | [18241] stdio: failed fseek on memstream does not set errno and can fail | |
753 | when it shouldnt | |
754 | [18243] nptl: sem_wait, sem_timedwait are cancellation points shm_open is | |
755 | not | |
756 | [18463] nptl: pthread_cond_broadcast issue when surrounded by | |
757 | PTHREAD_PRIO_INHERIT mutex on ARM | |
758 | [18784] network: res_query and related function crash for special record | |
759 | type queries (CVE-2015-5180) | |
760 | [19380] math: strtod does not raise "inexact" | |
761 | [19387] string: Integer overflow in memchr | |
762 | [19390] string: Integer overflow in strncat | |
763 | [19398] build: linknamespace tests fail with massively parallel build | |
764 | [19402] nptl: Deadlock with robust shared mutex and asynchronous | |
765 | termination | |
766 | [19469] malloc: M_PERTURB in test-skeleton.c invalidates malloc tests | |
767 | [19473] malloc: Turn malloc_get_state etc. in compatibility symbols | |
768 | [19514] libc: [PATCH] Fix spelling errors in spelling | |
769 | "implement"/"implementation" in several places | |
770 | [19582] network: Deprecate RES_USE_INET6 | |
771 | [19673] manual: clog10 docs appear to be erroneous | |
772 | [19810] dynamic-link: dlopen with both RTLD_NOLOAD and RTLD_NODELETE | |
773 | causes a segmentation fault | |
774 | [19826] libc: invalid pointer returned from __tls_get_addr with static | |
775 | linking | |
776 | [20016] network: resolv: Remove hooks support from the API | |
777 | [20019] dynamic-link: NULL pointer dereference in libc.so.6 IFUNC due to | |
778 | uninitialized GOT | |
779 | [20033] math: [x86_64] vectorized math function don't call the __finite | |
780 | versions | |
781 | [20116] nptl: use after free in pthread_create | |
782 | [20181] stdio: open_memstream(): writes not at end of stream corrupt data | |
783 | [20292] dynamic-link: Comparison in elf/dl-open.c _dl_addr_inside_object | |
784 | is always true. | |
785 | [20311] nptl: please install proc_service.h | |
786 | [20366] libc: Compilation errors in installed headers in strict-compliance | |
787 | modes | |
788 | [20370] malloc: malloc: Arena free list management is still racy | |
789 | (incorrect fix in bug 19243) | |
790 | [20386] libc: assert (X = 0) does not result in GCC warning | |
791 | [20432] malloc: malloc: Minimize interface required for interposition | |
792 | [20435] libc: Missing unwind info in __startcontext causes infinite loop | |
793 | in _Unwind_Backtrace (CVE-2016-6323) | |
794 | [20444] hurd: recvmsg: PF_LOCAL sockets and msg_name lead to SIGLOST | |
795 | [20452] nptl: Addition of sysdep.o to libpthread.a breaks relinking | |
796 | libpthread.a | |
797 | [20455] math: [powerpc] fesetexceptflag fails to clear FE_INVALID | |
798 | [20459] localedata: et_EE: locale has wrong {p,n}_cs_precedes value | |
799 | [20477] network: resolv: incorrect double-checked locking related to | |
800 | _res_hconf | |
801 | [20478] libc: libc_ifunc macro and similar usages leads to false debug- | |
802 | information. | |
803 | [20495] math: x86_64 performance degradation due to AVX/SSE transition | |
804 | penalty | |
805 | [20497] localedata: lt_LT: LC_TIME d_fmt used is obsolete | |
806 | [20508] dynamic-link: _dl_runtime_resolve_avx/_dl_runtime_profile_avx512 | |
807 | cause transition penalty | |
808 | [20517] math: sparcv9 missing fdiml compat symbol | |
809 | [20524] manual: strverscmp is inconsistent | |
810 | [20525] libc: <sys/quota.h> should be based on kernel headers | |
811 | [20539] math: GCC 7 -static -lm fails to link at -O3 | |
812 | [20554] libc: ld: bss-plt forced due to /usr/lib/libc_nonshared.a(ppc- | |
813 | mcount.oS) | |
814 | [20558] string: POSIX bcopy/bzero decls do not implement Object Size | |
815 | Checking | |
816 | [20591] network: Remove obsolete DNSSEC support | |
817 | [20592] network: DNS resource record type classification macros in | |
818 | <arpa/nameser.h> are incorrect | |
819 | [20593] network: Update DNS RR type definitions | |
820 | [20611] network: getaddrinfo accepts invalid numeric scope IDs | |
821 | [20615] build: glibc build fails when using --with-cpu=power9 --enable- | |
822 | multi-arch | |
823 | [20629] network: libresolv: Remove support for bitstring labels | |
824 | (RES_USEBSTRING) | |
825 | [20647] libc: GLIBC quitting every program - glibc on Pentium-S leads to | |
826 | assertion: "maxidx >= 2" | |
827 | [20660] math: [arm] Use VSQRT | |
828 | [20662] libc: checking whether x86_64-pc-linux-gnu-gcc implicitly enables | |
829 | -fstack-protector no (32bit gcc 6.2.0 pie and ssp enable) | |
830 | [20689] libc: Test for FMA should also check for AVX. | |
831 | [20707] glob: gl_pathv entries not set to NULL with GLOB_DOOFFS | |
832 | [20715] math: iszero macro breaks existing code | |
833 | [20718] math: [powerpc] copysignl raises "invalid" for sNaN | |
834 | [20728] libc: powerpc: Missing TOC stub in clone | |
835 | [20729] build: glibc-2.24 fails to build for i486 with -Os | |
836 | [20750] build: Build fails with default PIE enabled gcc-6.x | |
837 | [20768] math: [alpha] sqrt fegetenv namespace | |
838 | [20785] libc: binutils 2.28 fails to assemble power6/memset.S file in | |
839 | glibc | |
840 | [20787] math: float_t is defined as float incorrectly on x86_64 even if | |
841 | __FLT_EVAL_METHOD__ is 2 | |
842 | [20790] network: rpcgen buffer overrun in get_prog_declaration | |
843 | [20822] nptl: race condition in __lll_unlock_elision on powerpc | |
844 | [20829] libc: crypt snprintf namespace | |
845 | [20847] libc: tst-vfork3 failure | |
846 | [20855] math: Default bits/mathdef.h has inappropriate float_t | |
847 | [20859] math: [sh4] FP_ILOGB0 invalid | |
848 | [20864] localedata: iconv: cp936 missing single-byte euro sign (0x80, | |
849 | U+20AC), not same as GBK | |
850 | [20915] dynamic-link: global-dynamic TLS broken on aarch64 | |
851 | [20916] math: pow handling of sNaN arguments | |
852 | [20918] build: Building with --enable-nss-crypt fails tst-linkall-static. | |
853 | [20919] math: Bad pow (qNaN, 0) result with -lieee | |
854 | [20940] math: hypot sNaN handling | |
855 | [20947] math: fmax, fmin sNaN handling | |
856 | [20956] libc: debug/tst-backtrace3-6 don't work with -O3 anymore | |
857 | [20964] network: sunrpc: Stack-based buffer overflow in getrpcport with | |
858 | RES_USE_INET6 | |
859 | [20971] string: powerpc64/power7 memchr overflows internal pointer check | |
860 | [20973] nptl: robust mutexes: Lost wake-ups | |
861 | [20974] locale: bs_BA: yesexpr/noexpr regexes accept any character | |
862 | [20978] nis: strlen on null pointer in nss_nisplus | |
863 | [20985] nptl: robust mutexes: lowlevelrobustlock assembly on x86 blocks on | |
864 | wrong condition | |
865 | [21014] string: i686 memchr overflows internal pointer check | |
866 | [21019] libc: [mips] n32 lseek incorrect on overflow | |
867 | [21022] libc: [microblaze] __backtrace get_frame_size namespace | |
868 | [21026] libc: [MIPS] readahead syscall is broken on n64 | |
869 | [21028] math: Fallback fesetexceptflag should always succeed | |
870 | [21045] libc: [powerpc-nofpu] swapcontext does not restore signal mask | |
871 | [21047] math: arm: fpu_control.h: _FPU_GETCW/_FPU_SETCW is rejected by | |
872 | clang | |
873 | [21053] libc: [SH] Namespace pollution from sys/ucontext.h | |
874 | [21061] librt: [microblaze] librt lost clock_* exports | |
875 | [21073] libc: tunables: insecure environment variables passed to | |
876 | subprocesses with AT_SECURE | |
877 | [21081] string: Missing vzeroupper in memset-vec-unaligned-erms.S | |
e720d3d9 | 878 | \f |
11fca961 AZ |
879 | Version 2.24 |
880 | ||
5b4ecd3f JM |
881 | * The minimum Linux kernel version that this version of the GNU C Library |
882 | can be used with is 3.2, except on i[4567]86 and x86_64, where Linux | |
883 | kernel version 2.6.32 or later suffices (on architectures that already | |
884 | required kernel versions more recent than 3.2, those requirements remain | |
885 | unchanged). Linux 3.2 or later kernel headers are required on all | |
886 | architectures. | |
887 | ||
b6ebba70 MF |
888 | * The pap_AN locale has been deleted. This has been deprecated for a long |
889 | time. It has been replaced by pap_AW & pap_CW, both of which have long | |
890 | been included in previous releases. | |
11fca961 | 891 | |
7584a3f9 FW |
892 | * The readdir_r and readdir64_r functions have been deprecated. It is |
893 | recommended to use readdir and readdir64 instead. | |
894 | ||
b49ab5f4 FW |
895 | * The type “union wait” has been removed. It was deprecated in the early |
896 | 1990s and never part of POSIX. Application code should use the int type | |
897 | instead of “union wait”. | |
898 | ||
ced8f893 SG |
899 | * A new NSS action is added to facilitate large distributed system |
900 | administration. The action, MERGE, allows remote user stores like LDAP | |
901 | to be merged into local user stores like /etc/groups in order to provide | |
902 | easy to use, updated, and managed sets of merged credentials. The new | |
903 | action can be used by configuring it in /etc/nsswitch.conf: | |
904 | group: files [SUCCESS=merge] nis | |
905 | Implemented by Stephen Gallagher (Red Hat). | |
906 | ||
2ba3cfa1 FW |
907 | * The deprecated __malloc_initialize_hook variable has been removed from the |
908 | API. | |
909 | ||
b7a9b7b0 MF |
910 | * The long unused localedef --old-style option has been removed. It hasn't |
911 | done anything in over 16 years. Scripts using this option can safely | |
912 | drop it. | |
6a54bcda | 913 | |
41a359e2 RS |
914 | * nextupl, nextup, nextupf, nextdownl, nextdown and nextdownf are added to |
915 | libm. They are defined by TS 18661 and IEEE754-2008. The nextup functions | |
916 | return the next representable value in the direction of positive infinity | |
917 | and the nextdown functions return the next representable value in the | |
918 | direction of negative infinity. These are currently enabled as GNU | |
919 | extensions. | |
920 | ||
11fca961 AZ |
921 | Security related changes: |
922 | ||
f5b3338d FW |
923 | * An unnecessary stack copy in _nss_dns_getnetbyname_r was removed. It |
924 | could result in a stack overflow when getnetbyname was called with an | |
925 | overly long name. (CVE-2016-3075) | |
926 | ||
4ab2ab03 FW |
927 | * Previously, getaddrinfo copied large amounts of address data to the stack, |
928 | even after the fix for CVE-2013-4458 has been applied, potentially | |
929 | resulting in a stack overflow. getaddrinfo now uses a heap allocation | |
930 | instead. Reported by Michael Petlan. (CVE-2016-3706) | |
11fca961 | 931 | |
5171f307 FW |
932 | * The glob function suffered from a stack-based buffer overflow when it was |
933 | called with the GLOB_ALTDIRFUNC flag and encountered a long file name. | |
934 | Reported by Alexander Cherepanov. (CVE-2016-1234) | |
935 | ||
bc779a1a FW |
936 | * The Sun RPC UDP client could exhaust all available stack space when |
937 | flooded with crafted ICMP and UDP messages. Reported by Aldy Hernandez' | |
938 | alloca plugin for GCC. (CVE-2016-4429) | |
939 | ||
fab38231 FW |
940 | * The IPv6 name server management code in libresolv could result in a memory |
941 | leak for each thread which is created, performs a failing naming lookup, | |
942 | and exits. Over time, this could result in a denial of service due to | |
943 | memory exhaustion. Reported by Matthias Schiffer. (CVE-2016-5417) | |
944 | ||
11fca961 AZ |
945 | The following bugs are resolved with this release: |
946 | ||
3c4f81ec CD |
947 | [1170] localedata: ne_NP: update Nepali locale definition file |
948 | [3629] manual: stpcpy description in string.texi refers to MS-DOG instead | |
949 | of MS-DOS. | |
950 | [6527] malloc: [powerpc] Malloc alignment insufficient for PowerPC | |
951 | [6796] math: fdim() does not set errno on overflow | |
952 | [10354] libc: posix_spawn should use vfork() in more cases than presently | |
953 | [11213] localedata: localedata: add copyright disclaimer to locale files | |
954 | [12143] localedata: chr_US: new Cherokee locale | |
955 | [12450] localedata: sgs_LT: new locale | |
956 | [12676] localedata: ln_CD: new locale | |
957 | [13237] localedata: LC_ADDRESS.country_name: update all locales w/latest | |
958 | CLDR data | |
959 | [13304] math: fma, fmaf, fmal produce wrong results | |
960 | [14259] build: --localedir arg to configure is ignored | |
961 | [14499] nptl: Does posix_spawn invoke atfork handlers / use vfork? | |
962 | [14750] libc: Race condition in posix_spawn vfork usage vs signal handlers | |
963 | [14934] localedata: es_CL: wrong first weekday chilean locale | |
964 | [15262] localedata: LC_MESSAGES.yesexpr/noexpr: inconsistent use of | |
965 | romanisation | |
966 | [15263] localedata: LC_MESSAGES.yesexpr/noexpr: inconsistent use of 1/0 | |
967 | and +/- | |
968 | [15264] localedata: LC_MESSAGES.yesstr/nostr: lacking in many locales | |
969 | [15368] nptl: raise() is not async-signal-safe | |
970 | [15479] math: ceil, floor, round and trunc raise inexact exception | |
971 | [15578] localedata: kk_KZ: various updates | |
972 | [16003] localedata: pap_AN: punt old locale | |
973 | [16137] localedata: iw_IL: punt old locale | |
974 | [16190] localedata: eo: new esperanto locale | |
975 | [16374] localedata: lv_LV: change currency symbol in LC_MONETARY to euro | |
976 | [16742] malloc: race condition: pthread_atfork() called before first | |
977 | malloc() results in unexpected locking behaviour/deadlocks | |
978 | [16975] localedata: LC_MESSAGES.yesexpr/noexpr: revisit capitalization in | |
979 | all locales | |
980 | [16983] localedata: postal_fmt does not allow %l and %n modifiers | |
981 | [17565] localedata: pt_PT: wrong (work-)week start | |
982 | [17899] math: [powerpc] floorl returns negative zero with FE_DOWNWARD | |
983 | [17950] build: Build fails with -msse | |
984 | [18205] localedata: be_BY*: wrong first_weekday and first_workday | |
985 | [18433] libc: posix_spawn does not return correctly upon failure to | |
986 | execute | |
987 | [18453] localedata: charmaps/IBM875: incorrect codes | |
988 | [18712] string: bits/string2.h incompatible with -O2 -Werror=packed | |
989 | -Wsystem-headers | |
990 | [18896] localedata: he_IL: improvements for currency | |
991 | [18911] localedata: ro_RO: Correcting week day name for "Tuesday" in | |
992 | Romanian locale data | |
993 | [18960] locale: s390: _nl_locale_subfreeres uses larl opcode on misaligned | |
994 | symbol | |
995 | [19056] libc: Deprecate readdir_r | |
996 | [19133] localedata: pt_*: days & months should be lowercase in Portuguese | |
997 | language | |
998 | [19198] localedata: nl_NL: small improvements for Dutch locales | |
999 | [19257] network: Per-thread memory leak in __res_vinit with IPv6 | |
1000 | nameservers (CVE-2016-5417) | |
1001 | [19269] build: tst-audit4 and tst-audit10 failures with gcc-6 on non avx | |
1002 | machine | |
1003 | [19400] locale: Language missing in "iso-639.def", trivial fix in | |
1004 | description | |
1005 | [19431] malloc: Deadlock between fflush, getdelim, and fork | |
1006 | [19505] libc: Incorrect file descriptor validity checks in | |
1007 | posix_spawn_file_actions_add{open,close,dup2} | |
1008 | [19509] dynamic-link: dlsym, dlvsym do not report errors through dlerror | |
1009 | when using RTLD_NEXT | |
1010 | [19512] locale: Stale `#ifndef HAVE_BUILTIN_EXPECT' in | |
1011 | `intl/{gettextP,loadinfo}.h' | |
1012 | [19534] libc: execle, execlp may use malloc | |
1013 | [19568] localedata: *_CH: Swiss locales have inconsistent start of week | |
1014 | [19573] network: res_nclose and __res_maybe_init disagree about name | |
1015 | server initialization, breaking Hesiod | |
1016 | [19575] localedata: Status of GB18030 tables | |
1017 | [19581] localedata: sr_* date_fmt string contains additional newline | |
1018 | [19583] string: SSSE3_Fast_Copy_Backward flag needs to be enabled for AMD | |
1019 | Excavator core | |
1020 | [19592] math: [ldbl-128ibm] ceill incorrect in non-default rounding modes | |
1021 | [19593] math: [ldbl-128ibm] truncl incorrect in non-default rounding modes | |
1022 | [19594] math: [ldbl-128ibm] roundl incorrect in non-default rounding modes | |
1023 | [19595] math: [ldbl-128ibm] fmodl incorrect for results in subnormal | |
1024 | double range | |
1025 | [19602] math: [ldbl-128ibm] fmodl handling of equal arguments with low | |
1026 | part zero incorrect | |
1027 | [19603] math: [ldbl-128ibm] remainderl, remquol incorrect sign handling in | |
1028 | equality tests | |
1029 | [19610] dynamic-link: ldconfig -X removes stale symbolic links | |
1030 | [19613] libc: s390x (64 bit) macro expansion WCOREDUMP and others | |
1031 | [19633] locale: strfmon_l applies global locale to number formatting | |
1032 | [19642] network: Memory leak in getnameinfo | |
1033 | [19648] libc: test-skeleton.c: Do not set RLIMIT_DATA | |
1034 | [19653] libc: Potential for NULL pointer dereference (CWE-476) in | |
1035 | glibc-2.22 | |
1036 | [19654] math: [x86_64] Need testcase for BZ #19590 fix | |
1037 | [19671] localedata: Missing Sanity Check for malloc() in 'tst-fmon.c' & | |
1038 | 'tst-numeric.c' | |
1039 | [19674] math: [ldbl-128ibm] powl incorrect overflow handling | |
1040 | [19677] math: [ldbl-128ibm] remainderl equality test incorrect for zero | |
1041 | low part | |
1042 | [19678] math: [ldbl-128ibm] nextafterl, nexttowardl incorrect sign of zero | |
1043 | result | |
1044 | [19679] dynamic-link: gcc-4.9.3 C++ exception handling broken due to | |
1045 | unaligned stack | |
1046 | [19726] locale: Converting UCS4LE to INTERNAL with iconv() does not update | |
1047 | pointers and lengths in error-case. | |
1048 | [19727] locale: Converting from/to UTF-xx with iconv() does not always | |
1049 | report errors on UTF-16 surrogates values. | |
1050 | [19755] nscd: nscd assertion failure in gc | |
1051 | [19758] dynamic-link: Typo in EXTRA_LD_ENVVARS for x86-64 | |
1052 | [19759] libc: mempcpy shouldn't be inlined | |
1053 | [19762] dynamic-link: HAS_CPU_FEATURE/HAS_ARCH_FEATURE are easy to misuse | |
1054 | [19765] libc: s390 needs an optimized mempcpy | |
1055 | [19779] glob: glob: buffer overflow with GLOB_ALTDIRFUNC due to incorrect | |
1056 | NAME_MAX limit assumption (CVE-2016-1234) | |
1057 | [19783] build: benchtests don't support --enable-hardcoded-path-in-tests | |
1058 | [19787] network: Missing and incorrect truncation checks in getnameinfo | |
1059 | [19790] math: [ldbl-128ibm] nearbyintl incorrect in non-default rounding | |
1060 | modes | |
1061 | [19791] network: Assertion failure in res_query.c with un-connectable name | |
1062 | server addresses | |
1063 | [19792] libc: MIPS: backtrace yields infinite backtrace with makecontext | |
1064 | [19822] math: libm.so install clobbers old version | |
1065 | [19825] network: resolv: send_vc can return uninitialized data in second | |
1066 | response to getaddrinfo | |
1067 | [19830] network: nss_dns: should check RDATA length against buffer length | |
1068 | [19831] network: nss_dns: getaddrinfo returns uninitialized data when | |
1069 | confronted with A/AAAA records of invalid size | |
1070 | [19837] nss: nss_db: No retries for some long lines with a larger buffer | |
1071 | [19848] math: powl(10,n) for n=-4,-5,-6,-7 is off by more than 1 ULP | |
1072 | [19853] stdio: Printing IBM long double in decimal with high precision is | |
1073 | sometimes incorrect | |
1074 | [19860] build: x86_64: compile errors for tst-audit10 and tst-auditmod10b | |
1075 | [19861] nptl: libpthread IFUNC resolver for fork can lead to crash | |
1076 | [19862] network: resolv, nss_dns: Remove remaining logging of unexpected | |
1077 | record types | |
1078 | [19865] network: Assertion failure or memory leak in | |
1079 | _nss_dns_getcanonname_r | |
1080 | [19868] network: nss_dns: netent code does not skip over non-PTR records | |
1081 | [19879] network: nss_dns: Stack overflow in getnetbyname implementation | |
1082 | (CVE-2016-3075) | |
1083 | [19881] string: Improve x86-64 memset | |
1084 | [19907] string: Incorrect memcpy tests | |
1085 | [19916] dynamic-link: S390: fprs/vrs are not saved/restored while | |
1086 | resolving symbols | |
1087 | [19925] libc: termios.h XCASE namespace | |
1088 | [19928] string: memmove-vec-unaligned-erms.S is slow with large data size | |
1089 | [19929] libc: limits.h NL_NMAX namespace | |
1090 | [19931] stdio: Memory leak in vfprintf | |
1091 | [19957] libc: clone(CLONE_VM) access invalid parent memory | |
1092 | [19963] localedata: en_IL: New locale | |
1093 | [19989] stdio: stdio.h cuserid namespace | |
1094 | [19994] network: getaddrinfo does not restore RES_USE_INET6 flag in | |
1095 | gethosts | |
1096 | [19996] locale: langinfo.h nl_langinfo_l namespace | |
1097 | [20005] stdio: fflush on a file opened with fmemopen resets position to 0 | |
1098 | [20010] network: getaddrinfo: Stack overflow in hostent translation | |
1099 | (CVE-2016-3706) | |
1100 | [20012] stdio: libio: fmemopen append mode failure | |
1101 | [20014] stdio: stdio.h namespace for pre-threads POSIX | |
1102 | [20017] network: resolv: Use gmtime_r instead of gmtime in p_secstodate | |
1103 | [20023] libc: fcntl.h timespec namespace | |
1104 | [20024] math: [x86_64] vectorized sincos trashes the stack | |
1105 | [20031] network: nss_hesiod: Heap overflow in get_txt_records | |
1106 | [20041] time: sys/time.h timespec namespace | |
1107 | [20043] libc: unistd.h missing cuserid for UNIX98 and before | |
1108 | [20044] libc: unistd.h missing pthread_atfork for UNIX98 | |
1109 | [20051] libc: ttyslot in wrong header under wrong conditions | |
1110 | [20054] libc: gethostname not declared for XPG4 | |
1111 | [20055] libc: termios.h missing tcgetsid for XPG4 | |
1112 | [20072] dynamic-link: x86 init_cpu_features is called twice in static | |
1113 | executable | |
1114 | [20073] libc: sys/stat.h fchmod namespace | |
1115 | [20074] libc: stdlib.h rand_r namespace | |
1116 | [20076] libc: sys/stat.h missing S_IFSOCK, S_ISSOCK for XPG4 | |
1117 | [20094] libc: stdlib.h should not declare grantpt, ptsname, unlockpt for | |
1118 | XPG3 | |
1119 | [20111] libc: struct sockaddr_storage cannot be aggregate-copied | |
1120 | [20112] network: sunrpc: stack (frame) overflow in Sun RPC clntudp_call | |
1121 | (CVE-2016-4429) | |
1122 | [20115] string: Extra alignment in memset-vec-unaligned-erms.S | |
1123 | [20119] libc: Wrong mask for processors level type from CPUID | |
1124 | [20139] dynamic-link: Upper part of zmm is zeroed if Glibc is built with | |
1125 | AS not supporting AVX512 | |
1126 | [20151] math: [ldbl-128/ldbl-128ibm] j0l, j1l, y0l, y1l return sNaN for | |
1127 | sNaN argument | |
1128 | [20153] math: [ldbl-128ibm] sqrtl (sNaN) returns sNaN | |
1129 | [20156] math: [ldbl-128ibm] ceill, rintl etc. return sNaN for sNaN | |
1130 | argument | |
1131 | [20157] math: [powerpc] fabsl (sNaN) wrongly raises "invalid" | |
1132 | [20160] math: [powerpc] ceil, rint etc. return sNaN for sNaN input | |
1133 | [20178] libc: posix_spawn{p} should not call exit | |
1134 | [20191] stdio: libio: vtables hardening | |
1135 | [20195] string: FMA4 detection requires CPUID execution with register | |
1136 | eax=0x80000001 | |
1137 | [20198] libc: quick_exit incorrectly destroys C++11 thread objects. | |
1138 | [20205] math: [i386/x86_64] nextafterl incorrect incrementing negative | |
1139 | subnormals | |
1140 | [20212] math: acos (sNaN) returns sNaN | |
1141 | [20213] math: asin (sNaN) returns sNaN | |
1142 | [20214] network: Linux header sync with linux/in6.h and ipv6.h again. | |
1143 | [20218] math: [i386] asinhl (sNaN) returns sNaN | |
1144 | [20219] math: [i386] atanhl (sNaN) returns sNaN | |
1145 | [20222] stdio: fopencookie: Mangle function pointers | |
1146 | [20224] math: [i386] cbrtl (sNaN) returns sNaN | |
1147 | [20225] math: ldexp, scalbn, scalbln return sNaN for sNaN input | |
1148 | [20226] math: [i386/x86_64] expl, exp10l, expm1l return sNaN for sNaN | |
1149 | input | |
1150 | [20227] math: [i386/x86_64] logl (sNaN) returns sNaN | |
1151 | [20228] math: [i386/x86_64] log10l (sNaN) returns sNaN | |
1152 | [20229] math: [i386/x86_64] log1pl (sNaN) returns sNaN | |
1153 | [20232] math: [ldbl-128] expm1l (sNaN) returns sNaN | |
1154 | [20233] math: [ldbl-128ibm] expm1l (sNaN) returns sNaN | |
1155 | [20234] math: [ldbl-128ibm] log1pl (sNaN) returns sNaN | |
1156 | [20235] math: [i386/x86_64] log2l (sNaN) returns sNaN | |
1157 | [20237] nss: nss_db: get*ent segfaults without preceding set*ent | |
1158 | [20240] math: modf (sNaN) returns sNaN | |
1159 | [20248] libc: debug/tst-longjump_chk2 calls printf from a signal handler | |
1160 | [20250] math: frexp (sNaN) returns sNaN | |
1161 | [20252] math: atan2 (sNaN, qNaN) fails to raise "invalid" | |
1162 | [20255] math: [i386] fdim, fdimf return with excess range and precision / | |
1163 | double rounding | |
1164 | [20256] math: [i386/x86_64] fdiml returns sNaN for sNaN input | |
1165 | [20260] string: ../sysdeps/x86/bits/string.h:1092:3: error: array | |
1166 | subscript is below array bounds [-Werror=array-bounds] | |
1167 | [20262] nis: _nss_nis_initgroups_dyn always returns NSS_STATUS_NOTFOUND | |
1168 | [20263] nptl: robust mutex deadlocks if other thread requests timedlock | |
1169 | (Only arm/linux) | |
1170 | [20277] libc: $dp is not initialized correctly in sysdeps/hppa/start.S | |
1171 | [20284] malloc: malloc: Corrupt arena avoidance causes unnecessary mmap | |
1172 | fallbacks | |
1173 | [20296] math: [i386/x86_64] scalbl returns sNaN for sNaN input, missing | |
1174 | "invalid" exceptions | |
1175 | [20314] nptl: make[4]: *** [/usr/include/stdlib.h] Error 1 | |
1176 | [20316] localedata: id_ID: Februari instead of Pebruari | |
1177 | [20327] string: POWER8 strcasecmp returns incorrect result | |
1178 | [20347] math: Failure: Test: j0_downward (0xap+0) | |
1179 | [20348] libc: FAIL: misc/tst-preadvwritev64 | |
1180 | [20349] libc: 64-bit value is passed differently in p{readv,writev}{64} | |
1181 | [20350] libc: There is no test for p{read,write}64 | |
1182 | [20357] math: Incorrect cos result for 1.5174239687223976 | |
1183 | [20384] build: Don't run libmvec-sincos-avx* tests on non avx machines | |
11fca961 | 1184 | \f |
aeb47bbc DM |
1185 | Version 2.23 |
1186 | ||
23256f5e MF |
1187 | * Unicode 8.0.0 Support: Character encoding, character type info, and |
1188 | transliteration tables are all updated to Unicode 8.0.0, using new | |
1189 | and/or improved generator scripts contributed by Mike FABIAN (Red Hat). | |
1190 | These updates cause user visible changes, such as the fixes for bugs | |
1191 | 89, 16061, and 18568. | |
1192 | ||
2359035a FW |
1193 | * sched_setaffinity, pthread_setaffinity_np no longer attempt to guess the |
1194 | kernel-internal CPU set size. This means that requests that change the | |
1195 | CPU affinity which failed before (for example, an all-ones CPU mask) will | |
1196 | now succeed. Applications that need to determine the effective CPU | |
1197 | affinities need to call sched_getaffinity or pthread_getaffinity_np after | |
1198 | setting it because the kernel can adjust it (and the previous size check | |
1199 | would not detect this in the majority of cases). | |
1200 | ||
8b7b7f75 MW |
1201 | * The fts.h header can now be used with -D_FILE_OFFSET_BITS=64. With LFS |
1202 | the following new symbols are used: fts64_children, fts64_close, | |
1203 | fts64_open, fts64_read and fts64_set. | |
1204 | ||
2eecc8af FW |
1205 | * getaddrinfo now detects certain invalid responses on an internal netlink |
1206 | socket. If such responses are received, an affected process will | |
1207 | terminate with an error message of "Unexpected error <number> on netlink | |
1208 | descriptor <number>" or "Unexpected netlink response of size <number> on | |
1209 | descriptor <number>". The most likely cause for these errors is a | |
1210 | multi-threaded application which erroneously closes and reuses the netlink | |
1211 | file descriptor while it is used by getaddrinfo. | |
1212 | ||
a62719ba FW |
1213 | * A defect in the malloc implementation, present since glibc 2.15 (2012) or |
1214 | glibc 2.10 via --enable-experimental-malloc (2009), could result in the | |
1215 | unnecessary serialization of memory allocation requests across threads. | |
1216 | The defect is now corrected. Users should see a substantial increase in | |
1217 | the concurent throughput of allocation requests for applications which | |
de51ff8c | 1218 | trigger this bug. Affected applications typically create and |
a62719ba FW |
1219 | destroy threads frequently. (Bug 19048 was reported and analyzed by |
1220 | Ericsson.) | |
a014cecd | 1221 | |
bc148ca1 MF |
1222 | * There is now a --disable-timezone-tools configure option for disabling the |
1223 | building and installing of the timezone related utilities (zic, zdump, and | |
1224 | tzselect). This is useful for people who build the timezone data and code | |
1225 | independent of the GNU C Library. | |
1226 | ||
1c70b6f1 ZW |
1227 | * The obsolete header <regexp.h> has been removed. Programs that require |
1228 | this header must be updated to use <regex.h> instead. | |
1efad39b | 1229 | |
eed3e1eb JM |
1230 | * The obsolete functions bdflush, create_module, get_kernel_syms, |
1231 | query_module and uselib are no longer available to newly linked binaries; | |
1232 | the header <sys/kdaemon.h> has been removed. These functions and header | |
1233 | were specific to systems using the Linux kernel and could not usefully be | |
1234 | used with the GNU C Library on systems with version 2.6 or later of the | |
1235 | Linux kernel. | |
1236 | ||
1efad39b SL |
1237 | * Optimized string, wcsmbs and memory functions for IBM z13. |
1238 | Implemented by Stefan Liebler. | |
b08b4218 | 1239 | |
d709042a JM |
1240 | * Newly linked programs that define a variable called signgam will no longer |
1241 | have it set by the lgamma, lgammaf and lgammal functions. Programs that | |
1242 | require signgam to be set by those functions must ensure that they use the | |
1243 | variable provided by the GNU C Library and declared in <math.h>, without | |
1244 | defining their own copy. | |
1245 | ||
b08b4218 JM |
1246 | * The minimum GCC version that can be used to build this version of the GNU |
1247 | C Library is GCC 4.7. Older GCC versions, and non-GNU compilers, can | |
1248 | still be used to compile programs using the GNU C Library. | |
f268ab5f | 1249 | |
8f5e8b01 JM |
1250 | Security related changes: |
1251 | ||
6400ae6e FW |
1252 | * An out-of-bounds value in a broken-out struct tm argument to strftime no |
1253 | longer causes a crash. Reported by Adam Nielsen. (CVE-2015-8776) | |
1254 | ||
1255 | * The LD_POINTER_GUARD environment variable can no longer be used to disable | |
1256 | the pointer guard feature. It is always enabled. Previously, | |
1257 | LD_POINTER_GUARD could be used to disable security hardening in binaries | |
1258 | running in privileged AT_SECURE mode. Reported by Hector Marco-Gisbert. | |
1259 | (CVE-2015-8777) | |
1260 | ||
1261 | * An integer overflow in hcreate and hcreate_r could lead to an | |
1262 | out-of-bounds memory access. Reported by Szabolcs Nagy. (CVE-2015-8778) | |
1263 | ||
1264 | * The catopen function no longer has unbounded stack usage. Reported by | |
1265 | Max. (CVE-2015-8779) | |
1266 | ||
8f5e8b01 JM |
1267 | * The nan, nanf and nanl functions no longer have unbounded stack usage |
1268 | depending on the length of the string passed as an argument to the | |
6400ae6e | 1269 | functions. Reported by Joseph Myers. (CVE-2014-9761) |
8f5e8b01 | 1270 | |
e9db92d3 CD |
1271 | * A stack-based buffer overflow was found in libresolv when invoked from |
1272 | libnss_dns, allowing specially crafted DNS responses to seize control | |
1273 | of execution flow in the DNS client. The buffer overflow occurs in | |
1274 | the functions send_dg (send datagram) and send_vc (send TCP) for the | |
1275 | NSS module libnss_dns.so.2 when calling getaddrinfo with AF_UNSPEC | |
1276 | family. The use of AF_UNSPEC triggers the low-level resolver code to | |
1277 | send out two parallel queries for A and AAAA. A mismanagement of the | |
1278 | buffers used for those queries could result in the response of a query | |
1279 | writing beyond the alloca allocated buffer created by | |
1280 | _nss_dns_gethostbyname4_r. Buffer management is simplified to remove | |
1281 | the overflow. Thanks to the Google Security Team and Red Hat for | |
1282 | reporting the security impact of this issue, and Robert Holiday of | |
1283 | Ciena for reporting the related bug 18665. (CVE-2015-7547) | |
1284 | ||
ad372e29 | 1285 | The following bugs are resolved with this release: |
f268ab5f | 1286 | |
ad372e29 AZ |
1287 | [89] localedata: Locales nb_NO and nn_NO should transliterate æøå |
1288 | [887] math: Math library function "logb" and "nextafter" inconsistent | |
1289 | [2542] math: Incorrect return from float gamma (-0X1.FA471547C2FE5P+1) | |
1290 | [2543] math: Incorrect return from float gamma (-0X1.9260DCP+1) | |
1291 | [2558] math: Incorrect return from double gamma (-0X1.FA471547C2FE5P+1) | |
1292 | [2898] libc: [improve] warning: the use of `mktemp' is dangerous, better | |
1293 | use `mkstemp' | |
1294 | [4404] localedata: German translation of "Alarm clock" is misleading | |
1295 | [6799] math: nextafter() and nexttoward() doen't set errno on | |
1296 | overflow/underflow errors | |
1297 | [6803] math: scalb(), scalbln(), scalbn() do not set errno on | |
1298 | overflow/underflow | |
1299 | [10432] nis: _nss_nis_setnetgrent assertion failure | |
1300 | [11460] libc: fts has no LFS support | |
1301 | [12926] network: getaddrinfo()/make_request() may spin forever | |
1302 | [13065] nptl: Race condition in pthread barriers | |
1303 | [13690] nptl: pthread_mutex_unlock potentially cause invalid access | |
1304 | [14341] dynamic-link: Dynamic linker crash when DT_JMPREL and DT_REL{,A} | |
1305 | are not contiguous | |
1306 | [14551] math: [ldbl-128ibm] strtold overflow handling for IBM long double | |
1307 | [14912] libc: Rename non-installed bits/*.h headers | |
1308 | [15002] libc: Avoid undefined behavior in posix_fallocate overflow check | |
1309 | [15367] math: Let gcc use __builtin_isinf | |
1310 | [15384] math: One constant fewer in ieee754/dbl-64/wordsize-64/s_finite.c | |
1311 | [15421] math: lgamma wrongly sets signgam for ISO C | |
1312 | [15470] math: [arm] On ARM llrintl() and llroundl() do not raise | |
1313 | FE_INVALID with argument out of range | |
1314 | [15491] math: [i386/x86_64] x86 nearbyint implementations wrongly clear | |
1315 | all exceptions | |
1316 | [15786] dynamic-link: ifunc resolver functions can smash function | |
1317 | arguments | |
1318 | [15918] math: Unnecessary check for equality in hypotf() | |
1319 | [16061] localedata: Review / update transliteration data | |
1320 | [16068] math: [i386/x86_64] x86 and x86_64 fesetenv exclude state they | |
1321 | should include | |
1322 | [16141] time: strptime %z offset restriction | |
1323 | [16171] math: drem should be alias of remainder | |
1324 | [16296] math: fegetround is pure? | |
1325 | [16347] math: [ldbl-128ibm] ldbl-128/e_lgammal_r.c may not be suitable. | |
1326 | [16364] libc: sleep may leave SIGCHLD blocked on sync cancellation on | |
1327 | GNU/Linux | |
1328 | [16399] math: [mips] lrint / llrint / lround / llround missing exceptions | |
1329 | [16415] math: Clean up ldbl-128 / ldbl-128ibm expm1l for large positive | |
1330 | arguments | |
1331 | [16422] math: [powerpc] math-float, math-double failing llrint tests with | |
1332 | "Exception "Inexact" set" on ppc32 | |
1333 | [16495] localedata: nl_NL: date_fmt: shuffle year/month around | |
1334 | [16517] math: Missing underflow exception from tanf/tan/tanl | |
1335 | [16519] math: Missing underflow exception from sinhf | |
1336 | [16520] math: Missing underflow exception from tanhf | |
1337 | [16521] math: Missing underflow exception from exp2 | |
1338 | [16620] math: [ldbl-128ibm] exp10l spurious overflows / bad directed | |
1339 | rounding results | |
1340 | [16734] stdio: fopen calls mmap to allocate its buffer | |
1341 | [16961] math: nan function incorrect handling of bad sequences | |
1342 | [16962] math: nan function unbounded stack allocation (CVE-2014-9761) | |
1343 | [16973] localedata: Fix lang_lib/lang_term as per ISO 639-2 | |
1344 | [16985] locale: localedef: confusing error message when opening output | |
1345 | fails | |
1346 | [17118] math: ctanh(INFINITY + 2 * I) returns incorrect value | |
1347 | [17197] locale: Redundant shift character in iconv conversion output at | |
1348 | block boundary | |
1349 | [17243] libc: trunk/posix/execl.c:53: va_args problem ? | |
1350 | [17244] libc: trunk/sysdeps/unix/sysv/linux/semctl.c:116: va_args muxup ? | |
1351 | [17250] dynamic-link: static linking breaks nss loading | |
1352 | (getaddrinfo/getpwnam/etc...) | |
1353 | [17404] libc: atomic_exchange_rel lacking a barrier on MIPS16, GCC before | |
1354 | 4.7? | |
1355 | [17441] math: isnan() should use __builtin_isnan() in GCC | |
1356 | [17514] nptl: Assert failure unlocking ERRORCHECK mutex after timedlock | |
1357 | (related to lock elision) | |
1358 | [17787] manual: Exponent on page 324 of the PDF ends prematurely | |
1359 | [17886] time: strptime should be able to parse "Z" as a timezone with %z | |
1360 | [17887] time: strptime should be able to parse "+01:00" style timezones | |
1361 | [17905] libc: catopen() Multiple unbounded stack allocations | |
1362 | (CVE-2015-8779) | |
1363 | [18084] libc: backtrace (..., 0) dumps core on x86 | |
1364 | [18086] libc: nice() sets errno to 0 on success | |
1365 | [18240] libc: hcreate, hcreate_r should fail with ENOMEM if element count | |
1366 | is too large (CVE-2015-8778) | |
1367 | [18251] dynamic-link: SONAME missing when audit modules provides path | |
1368 | [18265] libc: add attributes for wchar string and memory functions | |
1369 | [18370] math: csqrt missing underflows | |
1370 | [18421] libc: [hppa] read-only segment has dynamic relocations | |
1371 | [18472] libc: Obsolete syscall wrappers should be compat symbols | |
1372 | [18480] libc: hppa glibc miscompilation in sched_setaffinity() | |
1373 | [18491] localedata: Update tr_TR LC_CTYPE as part of Unicode updates | |
1374 | [18525] localedata: Remove locale timezone information | |
1375 | [18560] libc: [powerpc] spurious bits/ipc.h definitions | |
1376 | [18568] localedata: Update locale data to Unicode 8.0 | |
1377 | [18589] locale: sort-test.sh fails at random | |
1378 | [18595] math: ctan, ctanh missing underflows | |
1379 | [18604] libc: assert macro-expands its argument | |
1380 | [18610] math: S390: fetestexcept() reports any exception if DXC-code | |
1381 | contains a vector instruction exception. | |
1382 | [18611] math: j1, jn missing errno setting on underflow | |
1383 | [18618] localedata: sync Chechen locale definitions with other *_RU | |
1384 | locales | |
1385 | [18647] math: powf(-0x1.000002p0, 0x1p30) returns 0 instead of +inf | |
1386 | [18661] libc: Some x86-64 assembly codes don't align stack to 16 bytes | |
1387 | [18665] network: In send_dg, the recvfrom function is NOT always using the | |
1388 | buffer size of a newly created buffer (CVE-2015-7547) | |
1389 | [18674] libc: [i386] trunk/sysdeps/i386/tst-auditmod3b.c:84: possible | |
1390 | missing break ? | |
1391 | [18675] libc: fpathconf(_PC_NAME_MAX) fails against large filesystems for | |
1392 | 32bit processes | |
1393 | [18681] libc: regexp.h is obsolete and buggy, and should be desupported | |
1394 | [18699] math: tilegx cproj() for various complex infinities does not yield | |
1395 | infinity | |
1396 | [18724] libc: Harden put*ent functions against data injection | |
1397 | [18743] nptl: PowerPC: findutils testcase fails with --enable-lock-elision | |
1398 | [18755] build: build errors with -DNDEBUG | |
1399 | [18757] stdio: fmemopen fails to set errno on failure | |
1400 | [18778] dynamic-link: ld.so crashes if failed dlopen causes libpthread to | |
1401 | be forced unloaded | |
1402 | [18781] libc: openat64 lacks O_LARGEFILE | |
1403 | [18787] libc: [hppa] sysdeps/unix/sysv/linux/hppa/bits/atomic.h:71:6: | |
1404 | error: can’t find a register in class ‘R1_REGS’ while reloading ‘asm’ | |
1405 | [18789] math: [ldbl-128ibm] sinhl inaccurate near 0 | |
1406 | [18790] math: [ldbl-128ibm] tanhl inaccurate | |
1407 | [18795] libc: stpncpy fortification misses buffer lengths that are | |
1408 | statically too large | |
1409 | [18796] build: build fails for --disable-mathvec | |
1410 | [18803] math: hypot missing underflows | |
1411 | [18820] stdio: fmemopen may leak memory on failure | |
1412 | [18823] math: csqrt spurious underflows | |
1413 | [18824] math: fma spurious underflows | |
1414 | [18825] math: pow missing underflows | |
1415 | [18857] math: [ldbl-128ibm] nearbyintl wrongly uses signaling comparisons | |
1416 | [18868] nptl: pthread_barrier_init typo has in-theory-undefined behavior | |
1417 | [18870] build: sem_open.c fails to compile with missing symbol | |
1418 | FUTEX_SHARED | |
1419 | [18872] stdio: Fix memory leak in printf_positional | |
1420 | [18873] libc: posix_fallocate overflow check ineffective | |
1421 | [18875] math: Excess precision leads incorrect libm | |
1422 | [18877] libc: arm: mmap offset regression | |
1423 | [18887] libc: memory corruption when using getmntent on blank lines | |
1424 | [18918] localedata: hu_HU: change time to HH:MM:SS format | |
1425 | [18921] libc: Regression: extraneous stat() and fstat() performed by | |
1426 | opendir() | |
1427 | [18928] dynamic-link: LD_POINTER_GUARD is not ignored for privileged | |
1428 | binaries (CVE-2015-8777) | |
1429 | [18951] math: tgamma missing underflows | |
1430 | [18952] math: [ldbl-128/ldbl-128ibm] lgammal spurious "invalid", incorrect | |
1431 | signgam | |
1432 | [18953] localedata: lt_LT: change currency symbol to the euro | |
1433 | [18956] math: powf inaccuracy | |
1434 | [18961] math: [i386] exp missing underflows | |
1435 | [18966] math: [i386] exp10 missing underflows | |
1436 | [18967] math: math.h XSI POSIX namespace (gamma, isnan, scalb) | |
1437 | [18969] build: multiple string test failures due to missing locale | |
1438 | dependencies | |
1439 | [18970] libc: Reference of pthread_setcancelstate in libc.a | |
1440 | [18977] math: float / long double Bessel functions not in XSI POSIX | |
1441 | [18980] math: i386 libm functions return with excess range and precision | |
1442 | [18981] math: i386 scalb*, ldexp return with excess range and precision | |
1443 | [18982] stdio: va_list and vprintf | |
1444 | [18985] time: Passing out of range data to strftime() causes a segfault | |
1445 | (CVE-2015-8776) | |
1446 | [19003] math: [x86_64] fma4 version of pow inappropriate contraction | |
1447 | [19007] libc: FAIL: elf/check-localplt with -z now and binutils 2.26 | |
1448 | [19012] locale: iconv_open leaks memory on error path | |
1449 | [19016] math: clog, clog10 inaccuracy | |
1450 | [19018] nptl: Mangle function pointers in tls_dtor_list | |
1451 | [19032] math: [i386] acosh (-qNaN) spurious "invalid" exception | |
1452 | [19046] math: ldbl-128 / ldbl-128ibm lgamma bad overflow handling | |
1453 | [19048] malloc: malloc: arena free list can become cyclic, increasing | |
1454 | contention | |
1455 | [19049] math: [powerpc] erfc incorrect zero sign | |
1456 | [19050] math: [powerpc] log* incorrect zero sign | |
1457 | [19058] math: [x86_64] Link fail with -fopenmp and -flto | |
1458 | [19059] math: nexttoward overflow incorrect in non-default rounding modes | |
1459 | [19071] math: ldbl-96 lroundl incorrect just below powers of 2 | |
1460 | [19074] network: Data race in _res_hconf_reorder_addrs | |
1461 | [19076] math: [ldbl-128ibm] log1pl (-1) wrong sign of infinity | |
1462 | [19077] math: [ldbl-128ibm] logl (1) incorrect sign of zero result | |
1463 | [19078] math: [ldbl-128ibm] expl overflow incorrect in non-default | |
1464 | rounding modes | |
1465 | [19079] math: dbl-64/wordsize-64 lround based on llround incorrect for | |
1466 | ILP32 | |
1467 | [19085] math: ldbl-128 lrintl, lroundl missing exceptions for 32-bit long | |
1468 | [19086] manual: posix_fallocate64 documented argument order is wrong. | |
1469 | [19088] math: lround, llround missing exceptions close to overflow | |
1470 | threshold | |
1471 | [19094] math: lrint, llrint missing exceptions close to overflow threshold | |
1472 | [19095] math: dbl-64 lrint incorrect for 64-bit long | |
1473 | [19122] dynamic-link: Unnecessary PLT relocations in librtld.os | |
1474 | [19124] dynamic-link: ld.so failed to build with older assmebler | |
1475 | [19125] math: [powerpc32] llroundf, llround incorrect exceptions | |
1476 | [19129] dynamic-link: [arm] Concurrent lazy TLSDESC resolution can crash | |
1477 | [19134] math: [powerpc32] lround, lroundf spurious exceptions | |
1478 | [19137] libc: i386/epoll_pwait.S doesn't support cancellation | |
1479 | [19143] nptl: Remove CPU set size checking from sched_setaffinity, | |
1480 | pthread_setaffinity_np | |
1481 | [19156] math: [ldbl-128] j0l spurious underflows | |
1482 | [19164] nptl: tst-getcpu fails with many possible CPUs | |
1483 | [19168] math: math/test-ildoubl and math/test-ldouble failure | |
1484 | [19174] nptl: PowerPC: TLE enabled pthread mutex performs poorly. | |
1485 | [19178] dynamic-link: ELF_RTYPE_CLASS_EXTERN_PROTECTED_DATA confuses | |
1486 | prelink | |
1487 | [19181] math: [i386/x86_64] fesetenv (FE_DFL_ENV), fesetenv | |
1488 | (FE_NOMASK_ENV) do not clear SSE exceptions | |
1489 | [19182] malloc: malloc deadlock between ptmalloc_lock_all and | |
1490 | _int_new_arena/reused_arena | |
1491 | [19189] math: [ldbl-128] log1pl (-qNaN) spurious "invalid" exception | |
1492 | [19201] math: dbl-64 remainder incorrect sign of zero result | |
1493 | [19205] math: bits/math-finite.h conditions do not match math.h and | |
1494 | bits/mathcalls.h | |
1495 | [19209] math: bits/math-finite.h wrongly maps ldexp to scalbn | |
1496 | [19211] math: lgamma functions do not set signgam for -ffinite-math-only | |
1497 | for C99-based standards | |
1498 | [19212] libc: features.h not -Wundef clean | |
1499 | [19213] math: [i386/x86_64] log* (1) incorrect zero sign for -ffinite- | |
1500 | math-only | |
1501 | [19214] libc: Family and model identification for AMD CPU's are incorrect. | |
1502 | [19219] libc: GLIBC build fails for ia64 with missing __nearbyintl | |
1503 | [19228] math: [powerpc] nearbyint wrongly clears "inexact", leaves traps | |
1504 | disabled | |
1505 | [19235] math: [powerpc64] lround, lroundf, llround, llroundf spurious | |
1506 | "inexact" exceptions | |
1507 | [19238] math: [powerpc] round, roundf spurious "inexact" for integer | |
1508 | arguments | |
1509 | [19242] libc: strtol incorrect in Turkish locales | |
1510 | [19243] malloc: reused_arena can pick an arena on the free list, leading | |
1511 | to an assertion failure and reference count corruption | |
1512 | [19253] time: tzset() ineffective when temporary TZ did not include DST | |
1513 | rules | |
1514 | [19266] math: strtod ("NAN(I)") incorrect in Turkish locales | |
1515 | [19270] math: [hppa] Shared libm missing __isnanl | |
1516 | [19285] libc: [hppa] sysdeps/unix/sysv/linux/hppa/bits/mman.h: missing | |
1517 | MAP_HUGETLB and MAP_STACK defines | |
1518 | [19313] nptl: Wrong __cpu_mask for x32 | |
1519 | [19347] libc: grantpt: try to force a specific gid even without pt_chown | |
1520 | [19349] math: [ldbl-128ibm] tanhl inaccurate for small arguments | |
1521 | [19350] math: [ldbl-128ibm] sinhl spurious overflows | |
1522 | [19351] math: [ldbl-128ibm] logl inaccurate near 1 | |
1523 | [19363] time: x32: times() return value wrongly truncates/sign extends | |
1524 | from 32bit | |
1525 | [19367] dynamic-link: Improve branch prediction on Silvermont | |
1526 | [19369] network: Default domain name not reset by res_ninit when "search" | |
1527 | / "domain" entry is removed from resolv.conf | |
1528 | [19375] math: powerpc: incorrect results for POWER7 logb with negative | |
1529 | subnormals | |
1530 | [19385] localedata: bg_BG: time separator should be colon, not comma | |
1531 | [19408] libc: linux personality syscall wrapper may erroneously return an | |
1532 | error on 32-bit architectures | |
1533 | [19415] libc: dladdr returns wrong names on hppa | |
1534 | [19432] libc: iconv rejects redundant escape sequences in IBM900, IBM903, | |
1535 | IBM905, IBM907, and IBM909 | |
1536 | [19439] math: Unix98 isinf and isnan functions conflict with C++11 | |
1537 | [19443] build: build failures with -DDEBUG | |
1538 | [19451] build: Make check fails on test-double-vlen2 | |
1539 | [19462] libc: Glibc failed to build with -Os | |
1540 | [19465] math: Wrong code with -Os | |
1541 | [19466] time: time/tst-mktime2.c is compiled into an infinite loop with | |
1542 | -Os | |
1543 | [19467] string: Fast_Unaligned_Load needs to be enabled for Excavator core | |
1544 | CPU's. | |
1545 | [19475] libc: Glibc 2.22 doesn't build on sparc [PATCH] | |
1546 | [19486] math: S390: Math tests fail with "Exception Inexact set". | |
1547 | [19529] libc: [ARM]: FAIL: stdlib/tst-makecontext | |
1548 | [19550] libc: [mips] mmap negative offset handling inconsistent with other | |
1549 | architectures | |
1550 | [19590] math: Fail to build shared objects that use libmvec.so functions. | |
aeb47bbc | 1551 | \f |
1c7a4a51 JM |
1552 | Version 2.22 |
1553 | ||
1554 | * The following bugs are resolved with this release: | |
1555 | ||
3df5cd98 | 1556 | 438, 2981, 4719, 6544, 6792, 11216, 12836, 13028, 13064, 13151, 13152, |
0e569d30 MF |
1557 | 14094, 14113, 14292, 14841, 14906, 14958, 15319, 15467, 15790, 15969, |
1558 | 16159, 16339, 16350, 16351, 16352, 16353, 16361, 16512, 16526, 16538, | |
1559 | 16559, 16560, 16704, 16783, 16850, 17053, 17090, 17195, 17269, 17293, | |
1560 | 17322, 17403, 17475, 17523, 17542, 17569, 17581, 17588, 17596, 17620, | |
1561 | 17621, 17628, 17631, 17692, 17711, 17715, 17776, 17779, 17792, 17833, | |
1562 | 17836, 17841, 17912, 17916, 17930, 17932, 17944, 17949, 17964, 17965, | |
1563 | 17967, 17969, 17977, 17978, 17987, 17991, 17996, 17998, 17999, 18007, | |
1564 | 18019, 18020, 18029, 18030, 18032, 18034, 18036, 18038, 18039, 18042, | |
1565 | 18043, 18046, 18047, 18049, 18068, 18078, 18080, 18093, 18100, 18104, | |
1566 | 18110, 18111, 18116, 18125, 18128, 18134, 18138, 18185, 18196, 18197, | |
1567 | 18206, 18210, 18211, 18217, 18219, 18220, 18221, 18234, 18244, 18245, | |
1568 | 18247, 18287, 18319, 18324, 18333, 18346, 18371, 18383, 18397, 18400, | |
1569 | 18409, 18410, 18412, 18418, 18422, 18434, 18444, 18457, 18468, 18469, | |
1570 | 18470, 18479, 18483, 18495, 18496, 18497, 18498, 18502, 18507, 18508, | |
1571 | 18512, 18513, 18519, 18520, 18522, 18527, 18528, 18529, 18530, 18532, | |
1572 | 18533, 18534, 18536, 18539, 18540, 18542, 18544, 18545, 18546, 18547, | |
1573 | 18549, 18553, 18557, 18558, 18569, 18583, 18585, 18586, 18592, 18593, | |
6fdd5d65 FW |
1574 | 18594, 18602, 18612, 18613, 18619, 18633, 18635, 18641, 18643, 18648, |
1575 | 18657, 18676, 18694, 18696, 18887. | |
2959eda9 | 1576 | |
f7fba805 SL |
1577 | * Cache information can be queried via sysconf() function on s390 e.g. with |
1578 | _SC_LEVEL1_ICACHE_SIZE as argument. | |
1579 | ||
2959eda9 AS |
1580 | * A buffer overflow in gethostbyname_r and related functions performing DNS |
1581 | requests has been fixed. If the NSS functions were called with a | |
1582 | misaligned buffer, the buffer length change due to pointer alignment was | |
1583 | not taken into account. This could result in application crashes or, | |
1584 | potentially arbitrary code execution, using crafted, but syntactically | |
1585 | valid DNS responses. (CVE-2015-1781) | |
4a4839c9 | 1586 | |
42261ad7 FW |
1587 | * The time zone file parser has been made more robust against crafted time |
1588 | zone files, avoiding heap buffer overflows related to the processing of | |
1589 | the tzh_ttisstdcnt and tzh_ttisgmtcnt fields, and a stack overflow due to | |
1590 | large time zone data files. Overly long time zone specifiers in the TZ | |
1591 | variable no longer result in stack overflows and crashes. | |
1592 | ||
afcd9480 AM |
1593 | * A powerpc and powerpc64 optimization for TLS, similar to TLS descriptors |
1594 | for LD and GD on x86 and x86-64, has been implemented. You will need | |
1595 | binutils-2.24 or later to enable this optimization. | |
1596 | ||
4a4839c9 AO |
1597 | * Character encoding and ctype tables were updated to Unicode 7.0.0, using |
1598 | new generator scripts contributed by Pravin Satpute and Mike FABIAN (Red | |
1599 | Hat). These updates cause user visible changes, such as the fix for bug | |
1600 | 17998. | |
1601 | ||
b13b96ca AS |
1602 | * CVE-2014-8121 The NSS backends shared internal state between the getXXent |
1603 | and getXXbyYY NSS calls for the same database, causing a denial-of-service | |
1604 | condition in some applications. | |
21933112 AS |
1605 | |
1606 | * Added vector math library named libmvec with the following vectorized x86_64 | |
a6336cc4 AS |
1607 | implementations: cos, cosf, sin, sinf, sincos, sincosf, log, logf, exp, expf, |
1608 | pow, powf. | |
21933112 AS |
1609 | The library can be disabled with --disable-mathvec. Use of the functions is |
1610 | enabled with -fopenmp -ffast-math starting from -O1 for GCC version >= 4.9.0. | |
037e4b99 AS |
1611 | Shared library libmvec.so is linked in as needed when using -lm (no need to |
1612 | specify -lmvec explicitly for not static builds). | |
21933112 | 1613 | Visit <https://sourceware.org/glibc/wiki/libmvec> for detailed information. |
fdb7d390 AZ |
1614 | |
1615 | * A new fmemopen implementation has been added with the goal of POSIX | |
1616 | compliance. The new implementation fixes the following long-standing | |
1617 | issues: BZ#6544, BZ#11216, BZ#12836, BZ#13151, BZ#13152, and BZ#14292. The | |
1618 | old implementation is still present for use be by existing binaries. | |
7fde904c MF |
1619 | |
1620 | * The 32-bit sparc sigaction ABI was inadvertently broken in the 2.20 and 2.21 | |
1621 | releases. It has been fixed to match 2.19 and older, but binaries built | |
1622 | against 2.20 and 2.21 might need to be recompiled. See BZ#18694. | |
7493ab25 RM |
1623 | |
1624 | * Port to Native Client running on ARMv7-A (--host=arm-nacl). | |
1625 | Contributed by Roland McGrath (Google). | |
2ec11c2b ZW |
1626 | |
1627 | * The header <regexp.h> is deprecated, and will be removed in a future | |
1628 | release. Use of this header will trigger a deprecation warning. | |
1629 | Application developers should update their code to use <regex.h> instead. | |
1630 | ||
a03ba363 | 1631 | This header was formerly part of SUS, but was deprecated in 1994 and |
2ec11c2b ZW |
1632 | removed from the standard in 2001. Also, the glibc implementation |
1633 | leaks memory. See BZ#18681 for more details. | |
1c7a4a51 | 1634 | \f |
58b930ae SP |
1635 | Version 2.21 |
1636 | ||
1637 | * The following bugs are resolved with this release: | |
1638 | ||
042e1521 | 1639 | 6652, 10672, 12674, 12847, 12926, 13862, 14132, 14138, 14171, 14498, |
5bd80bfe PP |
1640 | 15215, 15378, 15884, 16009, 16418, 16191, 16469, 16576, 16617, 16618, |
1641 | 16619, 16657, 16740, 16857, 17192, 17266, 17273, 17344, 17363, 17370, | |
1642 | 17371, 17411, 17460, 17475, 17485, 17501, 17506, 17508, 17522, 17555, | |
1643 | 17570, 17571, 17572, 17573, 17574, 17582, 17583, 17584, 17585, 17589, | |
1644 | 17594, 17601, 17608, 17616, 17625, 17630, 17633, 17634, 17635, 17647, | |
1645 | 17653, 17657, 17658, 17664, 17665, 17668, 17682, 17702, 17717, 17719, | |
1646 | 17722, 17723, 17724, 17725, 17732, 17733, 17744, 17745, 17746, 17747, | |
1647 | 17748, 17775, 17777, 17780, 17781, 17782, 17791, 17793, 17796, 17797, | |
1648 | 17801, 17803, 17806, 17834, 17844, 17848, 17868, 17869, 17870, 17885, | |
1649 | 17892. | |
1650 | ||
46d54873 FW |
1651 | * CVE-2015-1472 CVE-2015-1473 Under certain conditions wscanf can allocate |
1652 | too little memory for the to-be-scanned arguments and overflow the | |
1653 | allocated buffer. The implementation now correctly computes the required | |
1654 | buffer size when using malloc, and switches to malloc from alloca as | |
1655 | intended. | |
042e1521 CD |
1656 | |
1657 | * A new semaphore algorithm has been implemented in generic C code for all | |
1658 | machines. Previous custom assembly implementations of semaphore were | |
1659 | difficult to reason about or ensure that they were safe. The new version | |
1660 | of semaphore supports machines with 64-bit or 32-bit atomic operations. | |
1661 | The new semaphore algorithm is used by sem_init, sem_open, sem_post, | |
1662 | sem_wait, sem_timedwait, sem_trywait, and sem_getvalue. | |
a39208bd | 1663 | |
522e6ee3 CLT |
1664 | * Port to Altera Nios II has been contributed by Mentor Graphics. |
1665 | ||
d3b00f46 AZ |
1666 | * Optimized strcpy, stpcpy, strncpy, stpncpy, strcmp, and strncmp |
1667 | implementations for powerpc64/powerpc64le. | |
8bedcb5f | 1668 | Implemented by Adhemerval Zanella (IBM). |
96d6fd6c | 1669 | |
8d2c0a59 AZ |
1670 | * Added support for TSX lock elision of pthread mutexes on powerpc32, powerpc64 |
1671 | and powerpc64le. This may improve lock scaling of existing programs on | |
1672 | HTM capable systems. The lock elision code is only enabled with | |
1673 | --enable-lock-elision=yes. Also, the TSX lock elision implementation for | |
1674 | powerpc will issue a transaction abort on every syscall to avoid side | |
1675 | effects being visible outside transactions. | |
1676 | ||
dc400d7b RE |
1677 | * Optimized strcpy, stpcpy, strchrnul and strrchr implementations for |
1678 | AArch64. Contributed by ARM Ltd. | |
ec582ca0 | 1679 | |
0f9dfe04 L |
1680 | * i386 memcpy functions optimized with SSE2 unaligned load/store. |
1681 | ||
a39208bd CD |
1682 | * CVE-2104-7817 The wordexp function could ignore the WRDE_NOCMD flag |
1683 | under certain input conditions resulting in the execution of a shell for | |
ebda2f17 | 1684 | command substitution when the application did not request it. The |
a39208bd CD |
1685 | implementation now checks WRDE_NOCMD immediately before executing the |
1686 | shell and returns the error WRDE_CMDSUB as expected. | |
fb89b46d | 1687 | |
a5357b7c JL |
1688 | * CVE-2012-3406 printf-style functions could run into a stack overflow when |
1689 | processing format strings with a large number of format specifiers. | |
1690 | ||
e54db0ea AM |
1691 | * CVE-2014-9402 The nss_dns implementation of getnetbyname could run into an |
1692 | infinite loop if the DNS response contained a PTR record of an unexpected | |
1693 | format. | |
11e3417a | 1694 | |
4863355a JM |
1695 | * The minimum GCC version that can be used to build this version of the GNU |
1696 | C Library is GCC 4.6. Older GCC versions, and non-GNU compilers, can | |
1697 | still be used to compile programs using the GNU C Library. | |
1698 | ||
a4ecc9eb JM |
1699 | * The GNU C Library is now built with -Werror by default. This can be |
1700 | disabled by configuring with --disable-werror. | |
1701 | ||
0d560bbf | 1702 | * New locales: tu_IN, bh_IN, raj_IN, ce_RU. |
0781a777 RM |
1703 | |
1704 | * The obsolete sigvec function has been removed. This was the original | |
1705 | 4.2BSD interface that inspired the POSIX.1 sigaction interface, which | |
1706 | programs have been using instead for about 25 years. Of course, ABI | |
1707 | compatibility for old binaries using sigvec remains intact. | |
6d248857 WN |
1708 | |
1709 | * Merged gettext 0.19.3 into the intl subdirectory. This fixes building | |
1710 | with newer versions of bison. | |
28c38448 MF |
1711 | |
1712 | * Support for MIPS o32 FPXX, FP64A and FP64 ABI Extensions. | |
1713 | The original MIPS o32 hard-float ABI requires an FPU where double-precision | |
1714 | registers overlay two consecutive single-precision registers. MIPS32R2 | |
1715 | introduced a new FPU mode (FR=1) where double-precision registers extend the | |
1716 | corresponding single-precision registers which is incompatible with the | |
1717 | o32 hard-float ABI. The MIPS SIMD ASE and the MIPSR6 architecture both | |
1718 | require the use of FR=1 making a transition necessary. New o32 ABI | |
1719 | extensions enable users to migrate over time from the original o32 ABI | |
1720 | through to the updated o32 FP64 ABI. To achieve this the dynamic linker now | |
1721 | tracks the ABI of any loaded object and verifies that new objects are | |
1722 | compatible. Mode transitions will also be requested as required and | |
1723 | unsupportable objects will be rejected. The ABI checks include both soft and | |
1724 | hard float ABIs for o32, n32 and n64. | |
1725 | ||
1726 | GCC 5 with GNU binutils 2.25 onwards: | |
1727 | It is strongly recommended that all o32 system libraries are built using the | |
1728 | new o32 FPXX ABI (-mfpxx) to facilitate the transition as this is compatible | |
1729 | with the original and all new o32 ABI extensions. Configure a MIPS GCC | |
1730 | compiler using --with-fp-32=xx to set this by default. | |
58b930ae | 1731 | \f |
d5b396c1 AM |
1732 | Version 2.20 |
1733 | ||
1734 | * The following bugs are resolved with this release: | |
1735 | ||
6a9350c8 JM |
1736 | 6804, 9894, 11505, 12994, 13347, 13651, 14308, 14770, 15119, 15132, 15347, |
1737 | 15514, 15698, 15804, 15894, 15946, 16002, 16064, 16095, 16194, 16198, | |
1738 | 16275, 16284, 16287, 16315, 16348, 16349, 16354, 16357, 16362, 16447, | |
1739 | 16516, 16532, 16539, 16545, 16561, 16562, 16564, 16574, 16599, 16600, | |
1740 | 16609, 16610, 16611, 16613, 16619, 16623, 16629, 16632, 16634, 16639, | |
1741 | 16642, 16648, 16649, 16670, 16674, 16677, 16680, 16681, 16683, 16689, | |
1742 | 16695, 16701, 16706, 16707, 16712, 16713, 16714, 16724, 16731, 16739, | |
1743 | 16740, 16743, 16754, 16758, 16759, 16760, 16770, 16786, 16789, 16791, | |
1744 | 16796, 16799, 16800, 16815, 16823, 16824, 16831, 16838, 16839, 16849, | |
1745 | 16854, 16876, 16877, 16878, 16882, 16885, 16888, 16890, 16892, 16912, | |
1746 | 16915, 16916, 16917, 16918, 16922, 16927, 16928, 16932, 16943, 16958, | |
1747 | 16965, 16966, 16967, 16977, 16978, 16984, 16990, 16996, 17009, 17022, | |
1748 | 17031, 17042, 17048, 17050, 17058, 17061, 17062, 17069, 17075, 17078, | |
1749 | 17079, 17084, 17086, 17088, 17092, 17097, 17125, 17135, 17137, 17150, | |
1750 | 17153, 17187, 17213, 17259, 17261, 17262, 17263, 17319, 17325, 17354. | |
0961f7e1 | 1751 | |
95ee7fb1 SL |
1752 | * Reverted change of ABI data structures for s390 and s390x: |
1753 | On s390 and s390x the size of struct ucontext and jmp_buf was increased in | |
1754 | 2.19. This change is reverted in 2.20. The introduced 2.19 symbol versions | |
1755 | of getcontext, setjmp, _setjmp, __sigsetjmp, longjmp, _longjmp, siglongjmp | |
1756 | are preserved pointing straight to the same implementation as the old ones. | |
45ef6628 | 1757 | Given that, new callers will simply provide a too-big buffer to these |
95ee7fb1 SL |
1758 | functions. Any applications/libraries out there that embed jmp_buf or |
1759 | ucontext_t in an ABI-relevant data structure that have already been rebuilt | |
1760 | against 2.19 headers will have to rebuilt again. This is necessary in any | |
1761 | case to revert the breakage in their ABI caused by the glibc change. | |
1762 | ||
0961f7e1 JL |
1763 | * Support for file description locks is added to systems running the |
1764 | Linux kernel. The standard file locking interfaces are extended to | |
1765 | operate on file descriptions, not file descriptors, via the use of | |
1766 | F_OFD_GETLK, F_OFD_SETLK, and F_OFD_SETLKW. File description locks | |
1767 | are associated with an open file instead of a process. | |
f3d338c9 | 1768 | |
f940b965 RE |
1769 | * Optimized strchr implementation for AArch64. Contributed by ARM Ltd. |
1770 | ||
d0f5b3f8 JM |
1771 | * The minimum Linux kernel version that this version of the GNU C Library |
1772 | can be used with is 2.6.32. | |
1773 | ||
d6fe5e58 JM |
1774 | * Running the testsuite no longer terminates as soon as a test fails. |
1775 | Instead, a file tests.sum (xtests.sum from "make xcheck") is generated, | |
1776 | with PASS or FAIL lines for individual tests. A summary of the results is | |
1777 | printed, including a list of failing lists, and "make check" exits with | |
1778 | error status if there were any unexpected failures. "make check | |
1779 | stop-on-test-failure=y" may be used to keep the old behavior. | |
1780 | ||
464263cc JM |
1781 | * The am33 port, which had not worked for several years, has been removed |
1782 | from ports. | |
c941736c JM |
1783 | |
1784 | * The _BSD_SOURCE and _SVID_SOURCE feature test macros are no longer | |
1785 | supported; they now act the same as _DEFAULT_SOURCE (but generate a | |
1786 | warning). Except for cases where _BSD_SOURCE enabled BSD interfaces that | |
1787 | conflicted with POSIX (support for which was removed in 2.19), the | |
1788 | interfaces those macros enabled remain available when compiling with | |
1789 | _GNU_SOURCE defined, with _DEFAULT_SOURCE defined, or without any feature | |
1790 | test macros defined. | |
f63c86fe WN |
1791 | |
1792 | * Optimized strcmp implementation for ARMv7. Contributed by ARM Ltd. | |
5a414ff7 DV |
1793 | |
1794 | * Added support for TX lock elision of pthread mutexes on s390 and s390x. | |
1795 | This may improve lock scaling of existing programs on TX capable systems. | |
1796 | The lock elision code is only built with --enable-lock-elision=yes and | |
1797 | then requires a GCC version supporting the TX builtins. With lock elision | |
1798 | default mutexes are elided via __builtin_tbegin, if the cpu supports | |
1799 | transactions. By default lock elision is not enabled and the elision code | |
1800 | is not built. | |
d03efb2f AM |
1801 | |
1802 | * CVE-2014-4043 The posix_spawn_file_actions_addopen implementation did not | |
1803 | copy the path argument. This allowed programs to cause posix_spawn to | |
1804 | deference a dangling pointer, or use an unexpected pathname argument if | |
1805 | the string was modified after the posix_spawn_file_actions_addopen | |
1806 | invocation. | |
cfd2ea50 JM |
1807 | |
1808 | * All supported architectures now use the main glibc sysdeps directory | |
1809 | instead of some being in a separate "ports" directory (which was | |
1810 | distributed separately before glibc 2.17). | |
f083450f RM |
1811 | |
1812 | * The NPTL implementation of POSIX pthreads is no longer an "add-on". | |
1813 | On configurations that support it (all Linux configurations), it's now | |
1814 | used regardless of the --enable-add-ons switch to configure. It is no | |
1815 | longer possible to build such configurations without pthreads support. | |
4e8f95a0 FW |
1816 | |
1817 | * Locale names, including those obtained from environment variables (LANG | |
1818 | and the LC_* variables), are more tightly checked for proper syntax. | |
1819 | setlocale will now fail (with EINVAL) for locale names that are overly | |
1820 | long, contain slashes without starting with a slash, or contain ".." path | |
1821 | components. (CVE-2014-0475) Previously, some valid locale names were | |
1822 | silently replaced with the "C" locale when running in AT_SECURE mode | |
1823 | (e.g., in a SUID program). This is no longer necessary because of the | |
1824 | additional checks. | |
9a8a5720 RM |
1825 | |
1826 | * On x86-64, the dynamic linker's lazy-binding support is now compatible | |
1827 | with application code using Intel MPX instructions. (With all previous | |
1828 | versions, the MPX register state could be clobbered when making calls | |
1829 | into or out of a shared library.) Note that while the new dynamic | |
1830 | linker is compatible with all known x86 hardware whether or not it | |
1831 | supports Intel MPX, some x86 instruction-set emulators might fail to | |
1832 | handle the new instruction encodings. This is known to affect Valgrind | |
1833 | versions up through 3.9 (but will be fixed in the forthcoming 3.10 | |
1834 | release), and might affect other tools that do instruction emulation. | |
a1a6a401 FW |
1835 | |
1836 | * Support for loadable gconv transliteration modules has been removed. | |
1837 | The support for transliteration modules has been non-functional for | |
1838 | over a decade, and the removal is prompted by security defects. The | |
1839 | normal gconv conversion modules are still supported. Transliteration | |
1840 | with //TRANSLIT is still possible, and the //IGNORE specifier | |
f9df71e8 | 1841 | continues to be supported. (CVE-2014-5119) |
41488498 FW |
1842 | |
1843 | * Decoding a crafted input sequence in the character sets IBM933, IBM935, | |
1844 | IBM937, IBM939, IBM1364 could result in an out-of-bounds array read, | |
1845 | resulting a denial-of-service security vulnerability in applications which | |
1846 | use functions related to iconv. (CVE-2014-6040) | |
6c1fd795 DM |
1847 | \f |
1848 | Version 2.19 | |
1849 | ||
1850 | * The following bugs are resolved with this release: | |
1851 | ||
fd2f9486 JM |
1852 | 156, 387, 431, 762, 832, 926, 2801, 4772, 6786, 6787, 6807, 6810, 6981, |
1853 | 7003, 9721, 9954, 10253, 10278, 11087, 11157, 11214, 12100, 12486, 12751, | |
1854 | 12986, 13028, 13982, 13985, 14029, 14032, 14120, 14143, 14155, 14286, | |
1855 | 14547, 14699, 14752, 14782, 14876, 14910, 15004, 15048, 15073, 15089, | |
1856 | 15128, 15218, 15268, 15277, 15308, 15362, 15374, 15400, 15425, 15427, | |
1857 | 15483, 15522, 15531, 15532, 15593, 15601, 15608, 15609, 15610, 15632, | |
1858 | 15640, 15670, 15672, 15680, 15681, 15723, 15734, 15735, 15736, 15748, | |
1859 | 15749, 15754, 15760, 15763, 15764, 15797, 15799, 15825, 15843, 15844, | |
1860 | 15846, 15847, 15849, 15850, 15855, 15856, 15857, 15859, 15867, 15886, | |
1861 | 15887, 15890, 15892, 15893, 15895, 15897, 15901, 15905, 15909, 15915, | |
ed27ed83 JM |
1862 | 15917, 15919, 15921, 15923, 15939, 15941, 15948, 15963, 15966, 15968, |
1863 | 15985, 15988, 15997, 16032, 16034, 16036, 16037, 16038, 16041, 16046, | |
1864 | 16055, 16071, 16072, 16074, 16077, 16078, 16103, 16112, 16143, 16144, | |
1865 | 16146, 16150, 16151, 16153, 16167, 16169, 16172, 16195, 16214, 16245, | |
1866 | 16271, 16274, 16283, 16289, 16293, 16314, 16316, 16330, 16337, 16338, | |
798212a0 PP |
1867 | 16356, 16365, 16366, 16369, 16372, 16375, 16379, 16381, 16384, 16385, |
1868 | 16386, 16387, 16390, 16394, 16398, 16400, 16407, 16408, 16414, 16430, | |
1869 | 16431, 16453, 16474, 16506, 16510, 16529 | |
141f3a77 | 1870 | |
11520a57 CD |
1871 | * Slovenian translations for glibc messages have been contributed by the |
1872 | Translation Project's Slovenian team of translators. | |
1873 | ||
2fe16229 CD |
1874 | * The public headers no longer use __unused nor __block. This change is to |
1875 | support compiling programs that are derived from BSD sources and use | |
1876 | __unused internally, and to support compiling with Clang's -fblock | |
08d76093 CD |
1877 | extension which uses __block. |
1878 | ||
303e567a SP |
1879 | * CVE-2012-4412 The strcoll implementation caches indices and rules for |
1880 | large collation sequences to optimize multiple passes. This cache | |
1881 | computation may overflow for large collation sequences and may cause a | |
1882 | stack or buffer overflow. This is now fixed to use a slower algorithm | |
1883 | which does not use a cache if there is an integer overflow. | |
1884 | ||
141f3a77 SP |
1885 | * CVE-2012-4424 The strcoll implementation uses malloc to cache indices and |
1886 | rules for large collation sequences to optimize multiple passes and falls | |
1887 | back to alloca if malloc fails, resulting in a possible stack overflow. | |
1888 | The implementation now falls back to an uncached collation sequence lookup | |
1889 | if malloc fails. | |
c61b4d41 CD |
1890 | |
1891 | * CVE-2013-4788 The pointer guard used for pointer mangling was not | |
1892 | initialized for static applications resulting in the security feature | |
1893 | being disabled. The pointer guard is now correctly initialized to a | |
1894 | random value for static applications. Existing static applications need | |
1895 | to be recompiled to take advantage of the fix (bug 15754). | |
91ce4085 FW |
1896 | |
1897 | * CVE-2013-4237 The readdir_r function could write more than NAME_MAX bytes | |
1898 | to the d_name member of struct dirent, or omit the terminating NUL | |
1899 | character. (Bugzilla #14699). | |
1900 | ||
ba0d798c WN |
1901 | * CVE-2013-4332 The pvalloc, valloc, memalign, posix_memalign and |
1902 | aligned_alloc functions could allocate too few bytes or corrupt the | |
1903 | heap when passed very large allocation size values (Bugzilla #15855, | |
1904 | #15856, #15857). | |
1905 | ||
7cbcdb36 SP |
1906 | * CVE-2013-4458 Stack overflow in getaddrinfo with large number of results |
1907 | for AF_INET6 has been fixed (Bugzilla #16072). | |
1908 | ||
82bab04b | 1909 | * New locales: ak_GH, anp_IN, ar_SS, cmn_TW, hak_TW, lzh_TW, nan_TW, pap_AW, |
b46d046e | 1910 | pap_CW, quz_PE, the_NP. |
ddd9fb8f | 1911 | |
c5f840fd MB |
1912 | * Substantially revised locales: gd_GB, ht_HT |
1913 | ||
3e181dda CD |
1914 | * The LC_ADDRESS field was updated to support country_car for almost all |
1915 | supported locales. | |
ddd9fb8f | 1916 | |
3e181dda | 1917 | * ISO 1427 definitions were updated. |
7447ccd9 | 1918 | |
8a05c252 CL |
1919 | * ISO 3166 definitions were updated. |
1920 | ||
6055173a JM |
1921 | * The localedef utility now supports --big-endian and --little-endian |
1922 | command-line options to generate locales for a different system from that | |
1923 | for which the C library was built. | |
1924 | ||
b125d3e5 JM |
1925 | * Binary locale files now only depend on the endianness of the system for |
1926 | which they are generated and not on other properties of that system. As a | |
1927 | consequence, binary files generated with new localedef may be incompatible | |
1928 | with old versions of the GNU C Library, and binary files generated with | |
1929 | old localedef may be incompatible with this version of the GNU C Library, | |
1930 | in the following circumstances: | |
1931 | ||
1932 | + Locale files may be incompatible on m68k systems. | |
1933 | ||
1934 | + Locale archive files (but not separate files for individual locales) may | |
1935 | be incompatible on systems where plain "char" is signed. | |
1936 | ||
d4f66d37 JM |
1937 | * The configure option --disable-versioning has been removed. Builds with |
1938 | --disable-versioning had not worked for several years. | |
1939 | ||
3e181dda CD |
1940 | * ISO 639 definitions were updated for Chiga (cgg) and Chinese (gan, hak, czh, |
1941 | cjy, lzh, cmn, mnp, cdo, czo, cpx, wuu, hsn, yue). | |
e35696c3 | 1942 | |
ffb89e53 AO |
1943 | * SystemTap probes for malloc have been introduced. |
1944 | ||
5d29ccce SP |
1945 | * SystemTap probes for slow multiple precision fallback paths of |
1946 | transcendental functions have been introduced. | |
1947 | ||
8b7d57cd | 1948 | * Support for powerpc64le has been added. |
b125d3e5 JM |
1949 | |
1950 | * The soft-float powerpc port now supports e500 processors. | |
0a3ac0aa | 1951 | |
fd712ef3 | 1952 | * Support for STT_GNU_IFUNC symbols added for ppc32/power4+ and ppc64. |
7011c262 | 1953 | |
c688b419 JM |
1954 | * A new feature test macro _DEFAULT_SOURCE is available to enable the same |
1955 | set of header declarations that are enabled by default, even when other | |
1956 | feature test macros or compiler options such as -std=c99 would otherwise | |
1957 | disable some of those declarations. | |
1958 | ||
7011c262 | 1959 | * The _BSD_SOURCE feature test macro no longer enables BSD interfaces that |
029c7b25 JM |
1960 | conflict with POSIX. The libbsd-compat library (which was a dummy library |
1961 | that did nothing) has also been removed. | |
0a57b83e AO |
1962 | |
1963 | * Preliminary documentation about Multi-Thread, Async-Signal and | |
1964 | Async-Cancel Safety has been added. | |
ee4ec1d7 AK |
1965 | |
1966 | * Change of ABI data structures for s390 and s390x: | |
1967 | On s390 and s390x the size of struct ucontext and jmp_buf was increased to | |
1968 | allow for future hardware extensions. All library functions that accept or | |
1969 | return these structures were versioned in order to provide backwards | |
1970 | compatibility with existing code. However, not all cases can be handled | |
1971 | with interface versioning. If an application embeds either structure into | |
1972 | another structure and that structure is passed to another compilation unit | |
1973 | which expects the newer larger-sized object then any access to the new | |
1974 | fields will result in undefined behaviour. Similarly any access to fields | |
1975 | that were moved by the enlarging of the structures will cause undefined | |
1976 | behaviour. To fix the undefined behaviour all objects that are part of the | |
1977 | final in-memory image must agree on the size of structures, and this may | |
1978 | require recompilation. | |
2c8bfe7d DM |
1979 | \f |
1980 | Version 2.18 | |
1981 | ||
1982 | * The following bugs are resolved with this release: | |
1983 | ||
17db6e8d | 1984 | 2546, 2560, 5159, 6809, 7006, 10060, 10062, 10283, 10357, 10686, 11120, |
0432680e PY |
1985 | 11561, 12310, 12387, 12492, 12515, 12723, 13550, 13889, 13951, 13988, |
1986 | 14142, 14176, 14200, 14256, 14280, 14293, 14317, 14327, 14478, 14496, | |
8c17cb1f JM |
1987 | 14582, 14686, 14812, 14888, 14894, 14907, 14908, 14909, 14920, 14941, |
1988 | 14952, 14964, 14981, 14982, 14985, 14991, 14994, 14996, 15000, 15003, | |
1989 | 15006, 15007, 15014, 15020, 15022, 15023, 15036, 15054, 15055, 15062, | |
1990 | 15078, 15084, 15085, 15086, 15100, 15160, 15214, 15221, 15232, 15234, | |
1991 | 15283, 15285, 15287, 15304, 15305, 15307, 15309, 15327, 15330, 15335, | |
1992 | 15336, 15337, 15339, 15342, 15346, 15359, 15361, 15366, 15380, 15381, | |
1993 | 15394, 15395, 15405, 15406, 15409, 15416, 15418, 15419, 15423, 15424, | |
1994 | 15426, 15429, 15431, 15432, 15441, 15442, 15448, 15465, 15480, 15485, | |
1995 | 15488, 15490, 15492, 15493, 15497, 15506, 15529, 15536, 15553, 15577, | |
1996 | 15583, 15618, 15627, 15631, 15654, 15655, 15666, 15667, 15674, 15711, | |
1997 | 15755, 15759. | |
e4608715 CD |
1998 | |
1999 | * CVE-2013-2207 Incorrectly granting access to another user's pseudo-terminal | |
2000 | has been fixed by disabling the use of pt_chown (Bugzilla #15755). | |
2001 | Distributions can re-enable building and using pt_chown via the new configure | |
2002 | option `--enable-pt_chown'. Enabling the use of pt_chown carries with it | |
2003 | considerable security risks and should only be used if the distribution | |
2004 | understands and accepts the risks. | |
1cef1b19 | 2005 | |
5b535ac4 AS |
2006 | * CVE-2013-0242 Buffer overrun in regexp matcher has been fixed (Bugzilla |
2007 | #15078). | |
2008 | ||
1cef1b19 AS |
2009 | * CVE-2013-1914 Stack overflow in getaddrinfo with many results has been |
2010 | fixed (Bugzilla #15330). | |
7fffbdff | 2011 | |
55e4107b SP |
2012 | * Add support for calling C++11 thread_local object destructors on thread |
2013 | and program exit. This needs compiler support for offloading C++11 | |
2014 | destructor calls to glibc. | |
2015 | ||
e5c74c63 SP |
2016 | * Improved worst case performance of libm functions with double inputs and |
2017 | output. | |
2018 | ||
2019 | * Support for priority inherited mutexes in pthread condition variables on | |
2020 | non-x86 architectures. | |
2021 | ||
e7521973 JM |
2022 | * Port to Xilinx MicroBlaze contributed by David Holsgrove. |
2023 | ||
2024 | * Optimized string functions for AArch64. Implemented by Marcus Shawcroft. | |
2025 | ||
2026 | * Optimized string functions for ARM. Implemented by Will Newton and | |
2027 | Richard Henderson. | |
2028 | ||
2029 | * Optimized libm functions for SPARC. Implemented by David S. Miller. | |
2030 | ||
2031 | * Support for building more of ARM glibc as Thumb-2 code. Implemented by | |
2032 | Richard Henderson. | |
2033 | ||
2034 | * Support for building most of MIPS glibc as MIPS16 code. Implemented by | |
2035 | Chung-Lin Tang, Maciej W. Rozycki and Maxim Kuvyrkov. | |
2036 | ||
8cfdb7e0 SP |
2037 | * Added a benchmark framework to track performance of functions in glibc. |
2038 | ||
57267616 TS |
2039 | * New <math.h> macro named issignaling to check for a signaling NaN (sNaN). |
2040 | It is based on draft TS 18661 and currently enabled as a GNU extension. | |
58206c68 | 2041 | |
c204ab28 SP |
2042 | * On Linux, the clock function now uses the clock_gettime system call |
2043 | for improved precision, rather than old times system call. | |
61dd6208 | 2044 | |
0748546f PE |
2045 | * Added support for version-3 tz format files. This is needed when using |
2046 | the tz database release 2013e or later, and affects a few unusual cases -- | |
2047 | currently only TZ='America/Godthab' for time stamps after 2037. | |
2048 | ||
61dd6208 SP |
2049 | * Added new API functions pthread_getattr_default_np and |
2050 | pthread_setattr_default_np to get and set the default pthread | |
2051 | attributes of a process. | |
a7cb9d67 AK |
2052 | |
2053 | * Added support for TSX lock elision for pthread mutexes on i386 and x86-64. | |
2054 | This may improve lock scaling of existing programs on TSX capable systems. | |
2055 | When the --enable-lock-elision=yes parameter is specified at configure | |
2056 | time lock elision will be enabled by default for all PTHREAD_MUTEX_DEFAULT | |
2057 | mutexes. | |
be063fa4 RA |
2058 | |
2059 | * Support added for AT_HWCAP2 (to coincide with Linux kernel 3.10 | |
2060 | availability). Implemented by Ryan S. Arnold. | |
2061 | ||
2062 | * Support added for POWER8 platform. Implemented by Ryan S. Arnold. | |
370ca3d2 JM |
2063 | \f |
2064 | Version 2.17 | |
2065 | ||
2066 | * The following bugs are resolved with this release: | |
2067 | ||
80ceeaee | 2068 | 1349, 3439, 3479, 3665, 5044, 5246, 5298, 5400, 6530, 6677, 6778, 6808, |
b4180a5e AJ |
2069 | 9685, 9914, 10014, 10038, 10114, 10191, 10631, 10873, 11438, 11607, 11638, |
2070 | 11741, 12140, 13013, 13412, 13542, 13601, 13603, 13604, 13629, 13679, | |
2071 | 13696, 13698, 13717, 13741, 13759, 13761, 13763, 13881, 13939, 13950, | |
2072 | 13952, 13966, 14042, 14047, 14090, 14150, 14151, 14152, 14154, 14157, | |
2073 | 14166, 14173, 14195, 14197, 14237, 14246, 14251, 14252, 14283, 14298, | |
2074 | 14303, 14307, 14328, 14331, 14336, 14337, 14347, 14349, 14368, 14376, | |
2075 | 14417, 14447, 14459, 14476, 14477, 14501, 14505, 14510, 14516, 14518, | |
2076 | 14519, 14530, 14532, 14538, 14543, 14544, 14545, 14557, 14562, 14568, | |
2077 | 14576, 14579, 14583, 14587, 14595, 14602, 14610, 14621, 14638, 14645, | |
2078 | 14648, 14652, 14660, 14661, 14669, 14672, 14683, 14694, 14716, 14719, | |
2079 | 14743, 14767, 14783, 14784, 14785, 14793, 14796, 14797, 14801, 14803, | |
2080 | 14805, 14807, 14811, 14815, 14821, 14822, 14824, 14828, 14831, 14833, | |
2081 | 14835, 14838, 14856, 14863, 14865, 14866, 14868, 14869, 14871, 14872, | |
2082 | 14879, 14889, 14893, 14898, 14914. | |
14bc93a9 | 2083 | |
95b4f1b6 SE |
2084 | * Optimization of memcpy for MIPS. |
2085 | ||
14bc93a9 JL |
2086 | * CVE-2011-4609 svc_run() produces high cpu usage when accept fails with |
2087 | EMFILE has been fixed (Bugzilla #14889). | |
7a845b2c | 2088 | |
b54eb3cb JM |
2089 | * The add-on ports collection is now distributed in the "ports" subdirectory |
2090 | of the main GNU C Library distribution, rather than separately. | |
2091 | ||
7e2bd01f MS |
2092 | * Port to ARM AArch64 contributed by Linaro. |
2093 | ||
08f43f9b AK |
2094 | * Support for STT_GNU_IFUNC symbols added for s390 and s390x. |
2095 | Optimized versions of memcpy, memset, and memcmp added for System z10 and | |
2096 | zEnterprise z196. | |
2097 | Implemented by Andreas Krebbel. | |
2098 | ||
84b3fd84 FW |
2099 | * The new function secure_getenv allows secure access to the environment, |
2100 | returning NULL if running in a SUID/SGID process. This function replaces | |
2101 | the internal function __secure_getenv. | |
2102 | ||
815e6fa3 GB |
2103 | * SystemTap static probes have been added into the dynamic linker. |
2104 | Implemented by Gary Benson. | |
2105 | ||
400726de MK |
2106 | * Optimizations of string functions strstr, strcasestr and memmem. |
2107 | Implemented by Maxim Kuvyrkov. | |
2108 | ||
7aab07e4 | 2109 | * The minimum Linux kernel version that this version of the GNU C Library |
6dad2c06 | 2110 | can be used with is 2.6.16. |
7aab07e4 | 2111 | |
15d0da8c WS |
2112 | * Optimizations of string functions memchr, wcschr, wcscpy, and wcsrchr for |
2113 | powerpc POWER7. Implemented by Will Schmidt. | |
2114 | ||
3cc3ef96 RM |
2115 | * New configure option --disable-nscd builds the C library such that it |
2116 | never attempts to contact the Name Service Caching Daemon (nscd). | |
c53d909c RM |
2117 | New configure option --disable-build-nscd avoids building nscd itself; |
2118 | this is the default if --disable-nscd is used. | |
3cc3ef96 | 2119 | |
b54eb3cb JM |
2120 | * Improved support for cross-compilation, including cross-testing and |
2121 | bootstrap builds without a previously built glibc. | |
2122 | ||
85429b1a | 2123 | * Several testsuite tests are now able to test multiple IFUNC variants of an |
0d224d52 | 2124 | interface, rather than just testing the one that would be chooen by |
85429b1a DM |
2125 | default. |
2126 | ||
b54eb3cb JM |
2127 | * New configure options --with-bugurl and --with-pkgversion, for |
2128 | distributors to use to embed their bug-reporting and package version | |
2129 | information in --help and --version output. | |
2130 | ||
050af9c4 SP |
2131 | * The ttyname and ttyname_r functions on Linux now fall back to searching for |
2132 | the tty file descriptor in /dev/pts or /dev if /proc is not available. This | |
2133 | allows creation of chroots without the procfs mounted on /proc. | |
2134 | ||
89a3ad0b AO |
2135 | * The `crypt' function now fails if passed salt bytes that violate the |
2136 | specification for those values. On Linux, the `crypt' function will | |
2137 | consult /proc/sys/crypto/fips_enabled to determine if "FIPS mode" is | |
2138 | enabled, and fail on encrypted strings using the MD5 or DES algorithm | |
2139 | when the mode is enabled. | |
2140 | ||
6e6249d0 RM |
2141 | * The `clock_*' suite of functions (declared in <time.h>) is now available |
2142 | directly in the main C library. Previously it was necessary to link with | |
2143 | -lrt to use these functions. This change has the effect that a | |
2144 | single-threaded program that uses a function such as `clock_gettime' (and | |
2145 | is not linked with -lrt) will no longer implicitly load the pthreads | |
2146 | library at runtime and so will not suffer the overheads associated with | |
2147 | multi-thread support in other code such as the C++ runtime library. | |
5a04f376 | 2148 | |
d9286582 NK |
2149 | * New locales: ayc_PE, doi_IN, ia_FR, mni_IN, nhn_MX, niu_NU, niu_NZ, |
2150 | sat_IN, and szl_PL. | |
8d44e150 UD |
2151 | \f |
2152 | Version 2.16 | |
2153 | ||
2154 | * The following bugs are resolved with this release: | |
2155 | ||
a8133e19 JM |
2156 | 174, 208, 350, 369, 411, 706, 766, 2074, 2541, 2547, 2548, 2550, 2551, |
2157 | 2552, 2553, 2554, 2562, 2563, 2565, 2566, 2570, 2576, 2636, 2678, 3335, | |
2158 | 3440, 3748, 3768, 3866, 3868, 3906, 3976, 3992, 4026, 4108, 4596, 4822, | |
2159 | 5077, 5461, 5805, 5993, 6471, 6486, 6578, 6649, 6730, 6770, 6794, 6884, | |
2160 | 6890, 6894, 6895, 6907, 6911, 6959, 7064, 9739, 9902, 10110, 10135, 10140, | |
2161 | 10153, 10210, 10254, 10346, 10375, 10545, 10716, 10846, 10882, 11174, | |
2162 | 11261, 11322, 11365, 11451, 11494, 11521, 11677, 11837, 11959, 12047, | |
2163 | 12097, 12193, 12194, 12297, 12298, 12301, 12340, 12354, 12416, 12495, | |
2164 | 13058, 13223, 13361, 13525, 13526, 13527, 13528, 13529, 13530, 13531, | |
2165 | 13532, 13533, 13547, 13551, 13552, 13553, 13555, 13556, 13559, 13563, | |
2166 | 13566, 13576, 13579, 13583, 13592, 13594, 13613, 13618, 13637, 13656, | |
2167 | 13658, 13673, 13691, 13695, 13704, 13705, 13706, 13718, 13726, 13738, | |
2168 | 13739, 13743, 13750, 13758, 13760, 13761, 13775, 13786, 13787, 13792, | |
2169 | 13806, 13824, 13840, 13841, 13844, 13846, 13848, 13851, 13852, 13854, | |
2170 | 13871, 13872, 13873, 13879, 13882, 13883, 13884, 13885, 13886, 13892, | |
2171 | 13895, 13908, 13910, 13911, 13912, 13913, 13914, 13915, 13916, 13917, | |
2172 | 13918, 13919, 13920, 13921, 13922, 13923, 13924, 13926, 13927, 13928, | |
2173 | 13938, 13941, 13942, 13954, 13955, 13956, 13963, 13967, 13968, 13970, | |
2174 | 13973, 13979, 13983, 13986, 13996, 14012, 14027, 14033, 14034, 14036, | |
2175 | 14040, 14043, 14044, 14048, 14049, 14050, 14053, 14055, 14059, 14064, | |
2176 | 14075, 14080, 14083, 14103, 14104, 14109, 14112, 14117, 14122, 14123, | |
2177 | 14134, 14153, 14183, 14188, 14199, 14210, 14218, 14229, 14241, 14273, | |
2178 | 14277, 14278. | |
380d7e87 | 2179 | |
a086b4d6 L |
2180 | * Support for the x32 ABI on x86-64 added. The x32 target is selected by |
2181 | configuring glibc with: | |
2182 | BUILD_CC='gcc' CC='gcc -mx32' CXX='g++ -mx32' | |
2183 | Visit <http://sites.google.com/site/x32abi/> for more x32 ABI info. | |
2184 | Implemented by H.J. Lu. | |
2185 | ||
380d7e87 UD |
2186 | * ISO C11 support: |
2187 | ||
2188 | + define static_assert | |
2189 | ||
2190 | + do not declare gets | |
2191 | ||
2192 | + declare at_quick_exit and quick_exit also for ISO C11 | |
2193 | ||
2194 | + aligned_alloc. NB: The code is deliberately allows the size parameter | |
2195 | to not be a multiple of the alignment. This is a moronic requirement | |
2196 | in the standard but it is only a requirement on the caller, not the | |
2197 | implementation. | |
8d44e150 | 2198 | |
74033a25 | 2199 | + timespec_get added |
544563c9 UD |
2200 | |
2201 | + uchar.h support added | |
d75a0a62 | 2202 | |
ac097f5c UD |
2203 | + CMPLX, CMPLXF, CMPLXL added |
2204 | ||
16dd419d UD |
2205 | Implemented by Ulrich Drepper. |
2206 | ||
9dc4e1fb | 2207 | * Support for the IA-64 has been moved to ports. |
33808bf1 UD |
2208 | |
2209 | * Remove support for anything but ELF binary format | |
d9a216c0 UD |
2210 | |
2211 | * Checking versions of poll, ppoll added. | |
2212 | Implemented by Ulrich Drepper. | |
daa891c0 UD |
2213 | |
2214 | * More generic and 64-bit performance optimizations to math functions. | |
2215 | Implemented by Ulrich Drepper. | |
021db4be AJ |
2216 | |
2217 | * New configure option --enable-obsolete-rpc makes the deprecated RPC | |
2218 | headers and functions available at compile time as they were before | |
2219 | version 2.14. This option will be removed at some time in the future | |
2220 | after the TI-RPC library becomes fully sufficient for the needs of | |
2221 | existing applications. | |
ffb7875d | 2222 | |
21708942 | 2223 | * Compatibility code for Linux kernel versions before 2.4 has been removed. |
ffb7875d JM |
2224 | Note that glibc is not expected to work with any Linux kernel version |
2225 | before 2.6. | |
83678f76 | 2226 | |
edb00e4d RH |
2227 | * New header <sys/auxv.h> and function getauxval allowing easy access to |
2228 | the AT_* key-value pairs passed from the Linux kernel. The header also | |
2229 | defines the HWCAP_* bits associated with the AT_HWCAP key. | |
2230 | ||
83678f76 | 2231 | * New locales: mag_IN |
7b44a2df RM |
2232 | |
2233 | * New configure option --enable-systemtap builds SystemTap static probes | |
2234 | into libc for setjmp and longjmp and into libpthread for various operations. | |
2235 | So far the setjmp/longjmp probes and some of the libpthread probes are | |
2236 | provided only for i*86 and x86_64. | |
2237 | Implemented by Roland McGrath and Rayson Ho. | |
47e452cf JM |
2238 | |
2239 | * Optimized expf for x86-32 and x86-64. Implemented by Liubov Dmitrieva. | |
2240 | ||
d9dc34cd TMQMF |
2241 | * More optimized functions for PowerPC. Implemented by Adhemerval Zanella |
2242 | and Will Schmidt. | |
47e452cf JM |
2243 | |
2244 | * More optimized functions for SPARC. Implemented by David S. Miller. | |
2245 | ||
2246 | * Improved support for cross-compilation, especially bootstrap builds | |
2247 | without a previously built glibc. | |
2248 | ||
2249 | * Ports for the TILE-Gx and TILEPro families of processors. Contributed by | |
2250 | Chris Metcalf from Tilera. | |
2251 | ||
2252 | * Support for the old ARM ABI has been removed from ports. Only the EABI is | |
2253 | now supported for ARM processors. | |
2254 | ||
2255 | * The hard-float variant of the ARM EABI now uses /lib/ld-linux-armhf.so.3 | |
2256 | as the name of the dynamic linker, to distinguish it from the | |
2257 | /lib/ld-linux.so.3 dynamic linker used for the base EABI. | |
2258 | ||
2259 | * Support for CRIS has been removed from ports. | |
d9dc34cd TMQMF |
2260 | |
2261 | * A new class of installed header has been documented for low-level | |
2262 | platform-specific functionality. PowerPC added the first instance with a | |
2263 | function to provide time base register access. Contributed by Tulio | |
2264 | Magno Quites Machado Filho. | |
929cc14e AJ |
2265 | |
2266 | * ix86 configurations now install header files that are consistent with | |
2267 | what x86-64 configurations install. These same header files can be used | |
2268 | for -m32, -m64, or -mx32 builds. | |
2269 | Contributed by H.J. Lu. | |
ee9247c3 CD |
2270 | |
2271 | * Math library bug fixes. A thorough audit of all open math library bugs was | |
2272 | conducted by Joseph Myers. Significant progress was made on many math | |
2273 | library bugs resulting in more accurate exceptions and function results. | |
2274 | Many thanks to all those that contributed including Andreas Jaeger for his | |
2275 | patch review and work on the x87 trigonometric instruction issues. | |
2276 | ||
2277 | * Timezone data is no longer installed. Timezone-related binaries and scripts | |
2278 | will continue to be installed. Users should obtain their timezone data from | |
2279 | their distribution provider or from the tzdata package at | |
2280 | <ftp://munnari.oz.au/pub/>. | |
ee1a7fab | 2281 | \f |
e80fab37 | 2282 | Version 2.15 |
11988f8f | 2283 | |
c0244a9d UD |
2284 | * The following bugs are resolved with this release: |
2285 | ||
aebae053 UD |
2286 | 6779, 6783, 9696, 10103, 10709, 11589, 11929, 12403, 12786, 12840, 12847, |
2287 | 12868, 12852, 12874, 12885, 12892, 12906, 12907, 12922, 12935, 12962, | |
2288 | 13007, 13021, 13061, 13062, 13067, 13068, 13085, 13088, 13090, 13092, | |
2289 | 13096, 13114, 13118, 13123, 13134, 13138, 13147, 13150, 13166, 13179, | |
2290 | 13185, 13189, 13192, 13268, 13276, 13282, 13291, 13305, 13328, 13335, | |
2291 | 13337, 13344, 13358, 13367, 13413, 13416, 13423, 13439, 13446, 13472, | |
2292 | 13484, 13506, 13515, 13523, 13524, 13538, 13540 | |
c0244a9d | 2293 | |
11988f8f UD |
2294 | * New program pldd to list loaded object of a process |
2295 | Implemented by Ulrich Drepper. | |
9f2da732 UD |
2296 | |
2297 | * Add nss_db support back to glibc. No more dependency on Berkeley db | |
2298 | and support for initgroups lookups. | |
2299 | Implemented by Ulrich Drepper. | |
0b1cbaae L |
2300 | |
2301 | * Optimized strcpy, strncpy, stpcpy, stpncpy for SSE2 and SSSE3 on x86-32. | |
2302 | Contributed by HJ Lu. | |
8912479f L |
2303 | |
2304 | * Improved strcpy, strncpy, stpcpy, stpncpy for SSE2 and SSSE3 on x86-64. | |
2305 | Contributed by HJ Lu. | |
99710781 | 2306 | |
fc2ee42a LD |
2307 | * Optimized strcat, strncat on x86-64 and optimized wcscmp, wcslen, strnlen |
2308 | on x86-32 and x86-64. | |
99710781 | 2309 | Contributed by Liubov Dmitrieva. |
c55fbd1e | 2310 | |
d42964a0 | 2311 | * Optimized strchr and strrchr for SSE on x86-32. |
693fb948 LD |
2312 | Contributed by Liubov Dmitrieva. |
2313 | ||
1d3e4b61 UD |
2314 | * Optimized memchr, memrchr, rawmemchr, memcmp, wmemcmp, wcschr, wcscpy |
2315 | for x86-64 and x86-32. | |
093ecf92 LD |
2316 | Contributed by Liubov Dmitrieva. |
2317 | ||
c55fbd1e UD |
2318 | * New interfaces: scandirat, scandirat64 |
2319 | Implemented by Ulrich Drepper. | |
a0f33f99 UD |
2320 | |
2321 | * Checking versions of FD_SET, FD_CLR, and FD_ISSET added. | |
2322 | Implemented by Ulrich Drepper. | |
684ae515 UD |
2323 | |
2324 | * nscd now also caches the netgroup database. | |
2325 | Implemented by Ulrich Drepper. | |
0ac5ae23 UD |
2326 | |
2327 | * Integrate libm with gcc's -ffinite-math-only option. | |
2328 | Implemented by Ulrich Drepper. | |
d9a4d2ab UD |
2329 | |
2330 | * Lots of generic, 64-bit, and x86-64-specific performance optimizations | |
2331 | to math functions. Implemented by Ulrich Drepper. | |
2332 | ||
2333 | * Optimized strcasecmp and strncasecmp for AVX on x86-64. | |
2334 | Implemented by Ulrich Drepper. | |
78239589 UD |
2335 | |
2336 | * New Linux interfaces: process_vm_readv, process_vm_writev | |
e188ebba UD |
2337 | |
2338 | * Optimized strcasecmp and strncasecmp for SSSE3 and SSE4.2 on x86-32. | |
2339 | Implemented by Ulrich Drepper. | |
a1267ba1 | 2340 | |
f0b264f1 AZ |
2341 | * Optimized nearbyint and strcasecmp for PPC. |
2342 | Implemented by Adhemerval Zanella. | |
2655fd5c | 2343 | |
6b64057b | 2344 | * New locales: bho_IN, unm_US, es_CU, ta_LK |
e80fab37 | 2345 | \f |
dded88cd | 2346 | Version 2.14 |
9f94d2ea | 2347 | |
50934221 UD |
2348 | * The following bugs are resolved with this release: |
2349 | ||
553149f6 | 2350 | 386, 6420, 7101, 9730, 9732, 9809, 10138, 10149, 10157, 11099, 11257, |
873ca504 | 2351 | 11258, 11487, 11532, 11558, 11578, 11634, 11653, 11668, 11697, 11724, |
3cf74f8a | 2352 | 11781, 11799, 11820, 11837, 11857, 11884, 11892, 11895, 11901, 11945, |
7ae22829 | 2353 | 11947, 11952, 11987, 12052, 12083, 12158, 12178, 12200, 12346, 12350, |
4462fad3 UD |
2354 | 12393, 12420, 12432, 12445, 12449, 12453, 12454, 12460, 12469, 12489, |
2355 | 12509, 12510, 12511, 12518, 12527, 12541, 12545, 12551, 12582, 12583, | |
2356 | 12587, 12597, 12601, 12611, 12625, 12626, 12631, 12650, 12653, 12655, | |
4769ae77 UD |
2357 | 12660, 12671, 12681, 12684, 12685, 12711, 12713, 12714, 12717, 12723, |
2358 | 12724, 12734, 12738, 12746, 12766, 12775, 12777, 12782, 12788, 12792, | |
f16846a5 | 2359 | 12795, 12811, 12813, 12814, 12841 |
50934221 | 2360 | |
7b57bfe5 UD |
2361 | * The RPC implementation in libc is obsoleted. Old programs keep working |
2362 | but new programs cannot be linked with the routines in libc anymore. | |
2363 | Programs in need of RPC functionality must be linked against TI-RPC. | |
6b1e7d19 | 2364 | The TI-RPC implementation is IPv6 enabled and there are other benefits. |
018b9e36 UD |
2365 | |
2366 | Visible changes of this change include (obviously) the inability to link | |
a0446976 UD |
2367 | programs using RPC functions without referencing the TI-RPC library and the |
2368 | removal of the RPC headers from the glibc headers. | |
7b57bfe5 UD |
2369 | Implemented by Ulrich Drepper. |
2370 | ||
c6489db3 | 2371 | * New Linux interfaces: clock_adjtime, name_to_handle_at, open_by_handle_at, |
f1f929d7 | 2372 | syncfs, setns, sendmmsg |
83fe108b | 2373 | |
72d1dddb | 2374 | * New locales: os_RU, bem_ZA, en_ZA, ff_SN, sw_KE, sw_TZ, lb_LU, wae_CH, |
a7b80ed5 | 2375 | yue_HK, lij_IT, mhr_RU |
bc469bea UD |
2376 | |
2377 | * New encodings: CP770, CP771, CP772, CP773, CP774 | |
a9171047 UD |
2378 | |
2379 | * New program sotruss to trace calls through PLTs | |
2380 | Implemented by Ulrich Drepper. | |
7d17596c UD |
2381 | |
2382 | * The malloc hook implementation is marked deprecated and will be removed | |
2383 | from the default implementation in the next version. The design never | |
2384 | worked ever since the introduction of threads. Even programs which do | |
2385 | not create threads themselves can use multiple threads created internally. | |
9f94d2ea | 2386 | \f |
4828935d LM |
2387 | Version 2.13 |
2388 | ||
ac2b484c UD |
2389 | * The following bugs are resolved with this release: |
2390 | ||
c30b7ee2 UD |
2391 | 3268, 6812, 7066, 10085, 10484, 10563, 10851, 11149, 11155, 11577, 11611, |
2392 | 11640, 11655, 11701, 11840, 11856, 11883, 11903, 11904, 11968, 11979, | |
2393 | 12005, 12037, 12067, 12077, 12078, 12092, 12093, 12107, 12108, 12113, | |
2394 | 12140, 12159, 12167, 12191, 12194, 12201, 12204, 12205, 12207, 12348, | |
2395 | 12378, 12394, 12397 | |
ac2b484c | 2396 | |
10b3bedc | 2397 | * New Linux interfaces: prlimit, prlimit64, fanotify_init, fanotify_mark |
c08fb0d7 | 2398 | |
ac2b484c | 2399 | * POWER7 optimizations: memset, memcmp, strncmp |
8d50becc | 2400 | |
e9f82e0d UD |
2401 | * New optimized string functions for x86-64: strnlen (SSE2), |
2402 | strcasecmp (SSE2, SSSE3, SSE4.2), strncasecmp (SSE2, SSSE3, SSE4.2) | |
8d50becc | 2403 | Implemented by Ulrich Drepper. |
4828935d | 2404 | \f |
ee1a7fab UD |
2405 | Version 2.12 |
2406 | ||
d36b9613 UD |
2407 | * The following bugs are resolved with this release: |
2408 | ||
2e0fb521 DL |
2409 | 3662, 4457, 5553, 10162, 10401, 10414, 10554, 10824, 10864, 10915, |
2410 | 10918, 10936, 10939, 10958, 10968, 10969, 10972, 10992, 11000, 11001, | |
2411 | 11007, 11010, 11027, 11039, 11040, 11041, 11043, 11046, 11056, 11070, | |
2412 | 11093, 11115, 11125, 11126, 11127, 11134, 11141, 11149, 11183, 11184, | |
fc97f36d UD |
2413 | 11185, 11186, 11187, 11188, 11189, 11190, 11191, 11192, 11193, 11194, |
2414 | 11200, 11230, 11235, 11242, 11254, 11258, 11271, 11272, 11276, 11279, | |
2415 | 11287, 11292, 11319, 11332, 11333, 11387, 11389, 11390, 11394, 11397, | |
5ae958d7 | 2416 | 11410, 11438, 11449, 11470, 11471, 11520, 11537, 11538, 11571 |
86a4c67f UD |
2417 | |
2418 | * New interfaces: pthread_getname_np, pthread_setname_np | |
d36b9613 | 2419 | |
ee1a7fab UD |
2420 | * New Linux interface: recvmmsg |
2421 | ||
5e4295fb UD |
2422 | * STT_GNU_IFUNC implemented for Sparc by David Miller. |
2423 | ||
2424 | * The dynamic linker now recognizes supported ABI versions from the | |
2425 | EI_ABIVERSION field in the ELF header. | |
2426 | Implemented by Ulrich Drepper. | |
2427 | ||
71170aa0 UD |
2428 | * New NIS mode selector ADJUNCT_AS_SHADOW. The passwd.adjunct.byname table |
2429 | will not be used to fill in password fields in the passwd.byname replies. | |
2430 | Instead it is used to synthesize the shadow.byname table, should it be | |
2431 | missing. This is a useful mode in some installations involving Solaris. | |
2432 | Implemented by Ulrich Drepper. | |
2433 | ||
d36b9613 | 2434 | * New locales: kok_IN, sq_MK, cv_RU |
b50f8e42 UD |
2435 | \f |
2436 | Version 2.11 | |
2437 | ||
d36b9613 UD |
2438 | * The following bugs are resolved with this release: |
2439 | ||
2440 | 3270, 7094, 9924, 9986, 10011, 10085, 10107, 10159, 10162, 10166, 10183, | |
2441 | 10195, 10196, 10200, 10203, 10207, 10211, 10213, 10217, 10221, 10229, | |
2442 | 10262, 10286, 10312, 10315, 10319, 10349, 10360, 10391, 10402, 10416, | |
2443 | 10418, 10422, 10425, 10446, 10448, 10452, 10540, 10553, 10560, 10564, | |
2444 | 10609, 10643, 10692, 10713, 10717, 10730, 10731, 10742, 10780, 10784, | |
2445 | 10789, 10817, 10823, 10840, 10847 | |
2446 | ||
3a83202d UD |
2447 | * New interfaces: execvpe, pthread_sigqueue, mkstemps, mkstemps64, mkostemps, |
2448 | mkostemps64 | |
3d5243d4 UD |
2449 | Implemented by Ulrich Drepper. |
2450 | ||
24ab9c76 | 2451 | * Checking version of longjmp added that fails if an uninitialized stack |
b50f8e42 UD |
2452 | frame would be created. Implemented by Ulrich Drepper. |
2453 | ||
b8706f70 UD |
2454 | * STT_GNU_IFUNC is now supported in static executables. |
2455 | Implemented by H.J. Lu. | |
2456 | ||
51a71cf0 UD |
2457 | * STT_GNU_IFUNC implemented for PPC by Alan Modra. |
2458 | ||
0122f28e | 2459 | * New optimized string functions for x86-64: strstr, strcasestr, memcmp, |
9d36a6c4 | 2460 | strcspn, strpbrk, strspn, strcpy, stpcpy, strncpy, strcmp (SSE2, SSE4.2), |
7f3146e7 | 2461 | strncmp (SSE2, SSE4.2), strchr (SSE4.2), strrchr (SSE4.2). |
0122f28e UD |
2462 | Contributed by H.J. Lu. |
2463 | ||
9d36a6c4 | 2464 | strlen, rawmemchr, strcmp (SSSE3), strncmp (SSSE3). |
0122f28e UD |
2465 | Implemented by Ulrich Drepper. |
2466 | ||
9d36a6c4 UD |
2467 | * New optimized string functions for x86: strlen, strcspn, strspn, strpbrk, |
2468 | strstr, strcasestr. | |
2469 | Contributed by H.J. Lu. | |
2470 | ||
2471 | * Support for fma instruction in AVX on x86-64. | |
2472 | Implemented by H.J. Lu and Ulrich Drepper. | |
2473 | ||
0122f28e UD |
2474 | * AVX support in x86-64 auditing support in ld.so. |
2475 | Implemented by H.J. Lu. | |
2476 | ||
2477 | * STB_GNU_UNIQUE support added. | |
2478 | Implemented by Ulrich Drepper. | |
2479 | ||
2480 | * Implement second fallback mode for optimized DNS lookup for even more | |
2481 | broken environments. If two requests from the same port are not | |
2482 | handled correctly close the socket and open a new one before sending | |
2483 | the second request. The 'single-request-reopen' option in /etc/resolv.conf | |
2484 | can be used to select this mode right away, instead of rediscovering the | |
2485 | necessity is every process again. | |
2486 | Implemented by Ulrich Drepper. | |
2487 | ||
9d36a6c4 UD |
2488 | * New resolver flag RES_USE_DNSSEC to enable use of verified lookup. |
2489 | Implemented by Adam Tkac. | |
2490 | ||
2491 | * Optimized iconv conversions for S390x. | |
2492 | Implemented by Andreas Krebbel. | |
2493 | ||
4bc1b896 UD |
2494 | * Using condvars with PI mutexes is now more efficient due to kernel |
2495 | support for requeueing to PI futexes. NPTL support added for x86-64. | |
2496 | Implemented by Ulrich Drepper. | |
2497 | ||
9dd5b8a1 | 2498 | * New locales: ps_AF, my_MM |
f1092afe UD |
2499 | \f |
2500 | Version 2.10 | |
2501 | ||
d36b9613 UD |
2502 | * The following bugs are resolved with this release: |
2503 | ||
2504 | 697, 5381, 5807, 6411, 6545, 7040, 7058, 7067, 7080, 7083, 7095, 7098, | |
2505 | 9677, 9694, 9697, 9701, 9704, 9705, 9706, 9720, 9726, 9730, 9733, 9736, | |
2506 | 9741, 9750, 9753, 9759, 9781, 9791, 9793, 9823, 9833, 9844, 9880, 9881, | |
2507 | 9891, 9893, 9895, 9913, 9916, 9920, 9948, 9955, 9957, 9963, 9985, 10052, | |
2508 | 10069, 10086, 10087, 10090, 10092, 10093, 10100, 10118, 10128 | |
2509 | ||
bb066545 | 2510 | * New interfaces: preadv, preadv64, pwritev, pwritev64, malloc_info |
e109c612 UD |
2511 | Implemented by Ulrich Drepper. |
2512 | ||
425ce2ed | 2513 | * New Linux interfaces: accept4, fallocate, fallocate64. |
e109c612 | 2514 | Implemented by Ulrich Drepper. |
6f5c3117 | 2515 | |
1fdd89a7 | 2516 | * Correct declarations of string function when used in C++ code. This |
735be400 | 2517 | could lead to compile errors for invalid C++ code. |
1fdd89a7 | 2518 | |
6cbe890a UD |
2519 | * XPG7/POSIX 2008 compilation environment. Many GNU-specific functions are |
2520 | now in POSIX. | |
77db439e | 2521 | |
1f04d005 | 2522 | * New POSIX 2008 interface: psiginfo |
6cbe890a | 2523 | Implemented by Ulrich Drepper. |
1f04d005 | 2524 | |
610e67ed UD |
2525 | * New ISO C++1x interfaces: quick_exit, at_quick_exit |
2526 | Implemented by Ulrich Drepper. | |
2527 | ||
878b72c5 UD |
2528 | * Support for selecting between multiple function definitions at runtime |
2529 | using STT_GNU_IFUNC symbols. Implemented by Ulrich Drepper. | |
2530 | ||
e109c612 UD |
2531 | * The libcrypt library can now use the hash function implementations in |
2532 | NSS. Implemented by Ulrich Drepper. | |
2533 | ||
2534 | * The malloc implementation can be compiled to be less memory efficient | |
2535 | but higher performing in multi-threaded programs. | |
2536 | Implemented by Ulrich Drepper. | |
2537 | ||
735be400 | 2538 | * New locales: nan_TW@latin, ks_IN |
878b72c5 | 2539 | |
84aa52d7 | 2540 | * Faster strlen, strchr, strchrnul, strrchr, memchr, and rawmemchr for x86-64. |
9d26efa9 UD |
2541 | Implemented by Ulrich Drepper. |
2542 | ||
2543 | * Extended printf hook support. It is possible to use user-defined types | |
2544 | and extend existing format specifiers. | |
a152f366 UD |
2545 | Implemented by Ulrich Drepper. |
2546 | ||
c7e74e59 UD |
2547 | * Handling for group shadow files has been added. |
2548 | Implemented by Ulrich Drepper. | |
2549 | ||
57be3fd7 UD |
2550 | * DNS IPv4-IPv6 parallel lookup now deals better with broken DNS |
2551 | servers (the case, e.g., for some people using the built-in DNS | |
2552 | server in ADSL modems/routers). There is a once-per-process timeout | |
2553 | in case of a broken server. To avoid it, users can run nscd or put | |
2554 | 'options single-request' in /etc/resolv.conf. | |
2555 | Implemented by Ulrich Drepper. | |
28919a77 | 2556 | \f |
b29899ae UD |
2557 | Version 2.9 |
2558 | ||
d36b9613 UD |
2559 | * The following bugs are resolved with this release: |
2560 | ||
2561 | 3406, 5209, 5210, 5381, 5794, 5814, 5911, 6428, 6438, 6442, 6447, 6461, | |
2562 | 6472, 6505, 6544, 6589, 6612, 6634, 6653, 6654, 6657, 6698, 6712, 6713, | |
2563 | 6719, 6723, 6724, 6740, 6763, 6771, 6790, 6791, 6817, 6824, 6839, 6843, | |
2564 | 6845, 6856, 6857, 6860, 6867, 6875, 6919, 6920, 6942, 6947, 6955, 6966, | |
2565 | 6968, 6974, 6980, 6995, 7008, 7009, 7029 | |
2566 | ||
b29899ae | 2567 | * Unified lookup for getaddrinfo: IPv4 and IPv6 addresses are now looked |
f05ac8f5 UD |
2568 | up at the same time. Implemented by Ulrich Drepper. |
2569 | ||
2570 | * TLS descriptors for LD and GD on x86 and x86-64. | |
2571 | Implemented by Alexandre Oliva. | |
18a74157 UD |
2572 | |
2573 | * getaddrinfo now handles DCCP and UDPlite. | |
2574 | Implemented by Ulrich Drepper. | |
0caca71a UD |
2575 | |
2576 | * New fixed-size conversion macros: htobe16, htole16, be16toh, le16toh, | |
2577 | htobe32, htole32, be32toh, le32toh, htobe64, htole64, be64toh, le64toh. | |
2578 | Implemented by Ulrich Drepper. | |
2579 | ||
2580 | * New implementation of memmem, strstr, and strcasestr which is O(n). | |
2581 | Implemented by Eric Blake. | |
e038616f | 2582 | |
8ec2550e | 2583 | * New Linux interfaces: inotify_init1, dup3, epoll_create1, pipe2 |
e038616f UD |
2584 | |
2585 | * Implement "e" option for popen to open file descriptor with the | |
ebcc1f4d | 2586 | close-on-exec flag set. Implemented by Ulrich Drepper. |
e038616f | 2587 | |
7b3ba2c4 UD |
2588 | * Implement "b" mode for fmemopen. In this mode writes writes don't |
2589 | implicitly add a NUL byte and seeks from the end of the buffer really | |
2590 | use the buffer end, not the string length as the basis. | |
2591 | Implemented by Ulrich Drepper. | |
2592 | ||
e038616f UD |
2593 | * Many functions, exported and internal, now atomically set the close-on-exec |
2594 | flag when run on a sufficiently new kernel. Implemented by Ulrich Drepper. | |
48b22986 | 2595 | |
bf837fa3 UD |
2596 | * Sorting rules for some Indian languages (Kannada, Gurumukhi, Telugu, |
2597 | Sinhala) | |
48b22986 | 2598 | Implemented by Pravin Satpute. |
0a26fc4d UD |
2599 | |
2600 | * New locales: sd_IN, sd_IN@devanagari, ks_IN@devanagari, ht_HT, en_AG, nl_AW. | |
b29899ae | 2601 | \f |
28919a77 UD |
2602 | Version 2.8 |
2603 | ||
d36b9613 UD |
2604 | * The following bugs are resolved with this release: |
2605 | ||
2606 | 2549, 3112, 4314, 4407, 4997, 5012, 5040, 5112, 5204, 5208, 5209, 5220, | |
2607 | 5222, 5224, 5225, 5237, 5238, 5240, 5245, 5277, 5346, 5375, 5378, 5382, | |
2608 | 5424, 5427, 5428, 5435, 5436, 5439, 5441, 5442, 5443, 5451, 5452, 5454, | |
2609 | 5455, 5463, 5464, 5465, 5475, 5477, 5478, 5520, 5541, 5545, 5553, 5600, | |
2610 | 5602, 5607, 5614, 5627, 5628, 5736, 5737, 5741, 5753, 5760, 5762, 5768, | |
2611 | 5774, 5777, 5778, 5779, 5786, 5790, 5818, 5854, 5857, 5903, 5939, 5979, | |
2612 | 5983, 5995, 5998, 6004, 6007, 6020, 6021, 6024, 6040, 6042 | |
2613 | ||
e038616f | 2614 | * New locales: bo_CN, bo_IN, shs_CA. |
b4354cf4 | 2615 | |
77751669 | 2616 | * New encoding: HP-ROMAN9, HP-GREEK8, HP-THAI8, HP-TURKISH8. |
aece054b UD |
2617 | |
2618 | * Sorting rules for some Indian languages (Devanagari and Gujarati). | |
2619 | Implemented by Pravin Satpute. | |
2620 | ||
2621 | * IPV6 addresses in /etc/resolv.conf can now have a scope ID | |
2622 | ||
2623 | * nscd caches now all timeouts for DNS entries | |
2624 | Implemented by Ulrich Drepper. | |
2625 | ||
2626 | * nscd is more efficient and wakes up less often. | |
2627 | Implemented by Ulrich Drepper. | |
2628 | ||
2629 | * More checking functions: asprintf, dprintf, obstack_printf, vasprintf, | |
2630 | vdprintf, and obstack_vprintf. | |
2631 | Implemented by Jakub Jelinek. | |
2632 | ||
2633 | * Faster memset for x86-64. | |
2634 | Implemented by Harsha Jagasia and H.J. Lu. | |
2635 | ||
2636 | * Faster memcpy on x86. | |
2637 | Implemented by Ulrich Drepper. | |
2638 | ||
2639 | * ARG_MAX is not anymore constant on Linux. Use sysconf(_SC_ARG_MAX). | |
2640 | Implemented by Ulrich Drepper. | |
3b32d8a2 UD |
2641 | |
2642 | * Faster sqrt and sqrtf implemention for some PPC variants. | |
d990b282 | 2643 | Implemented by Steven Munroe. |
46c38bd7 | 2644 | \f |
e1db0493 UD |
2645 | Version 2.7 |
2646 | ||
d36b9613 UD |
2647 | * The following bugs are resolved with this release: |
2648 | ||
2649 | 4125, 4126, 4178, 4359, 4407, 4512, 4514, 4525, 4554, 4556, 4557, 4566, | |
2650 | 4582, 4586, 4588, 4599, 4610, 4647, 4702, 4705, 4726, 4745, 4772, 4773, | |
2651 | 4775, 4776, 4792, 4813, 4814, 4816, 4833, 4858, 4860, 4896, 4905, 4925, | |
2652 | 4936, 4937, 4938, 4941, 4946, 4963, 4972, 5010, 5028, 5043, 5058, 5063, | |
2653 | 5071, 5103, 5104, 5112, 5113, 5184, 5186 | |
2654 | ||
e1db0493 UD |
2655 | * More checking functions: fread, fread_unlocked, open*, mq_open. |
2656 | Implemented by Jakub Jelinek and Ulrich Drepper. | |
2657 | ||
2658 | * Extend fortification to C++. Implemented by Jakub Jelinek. | |
2659 | ||
2660 | * Implement 'm' modifier for scanf. Add stricter C99/SUS compliance | |
2661 | by not recognizing 'a' as a modifier when those specs are requested. | |
2662 | Implemented by Jakub Jelinek. | |
2663 | ||
2664 | * PPC optimizations to math and string functions. | |
2665 | Implemented by Steven Munroe. | |
2666 | ||
28919a77 | 2667 | * New interfaces: mkostemp, mkostemp64. Like mkstemp* but allow additional |
e1db0493 UD |
2668 | options to be passed. Implemented by Ulrich Drepper. |
2669 | ||
2670 | * More CPU set manipulation functions. Implemented by Ulrich Drepper. | |
2671 | ||
0304f168 UD |
2672 | * New Linux interfaces: signalfd, eventfd, eventfd_read, and eventfd_write. |
2673 | Implemented by Ulrich Drepper. | |
2674 | ||
e1db0493 UD |
2675 | * Handle private futexes in the NPTL implementation. |
2676 | Implemented by Jakub Jelinek and Ulrich Drepper. | |
2677 | ||
2678 | * Add support for O_CLOEXEC. Implement in Hurd. Use throughout libc. | |
2679 | Implemented by Roland McGrath and Ulrich Drepper. | |
2680 | ||
2681 | * Linux/x86-64 vDSO support. Implemented by Ulrich Drepper. | |
2682 | ||
2683 | * SHA-256 and SHA-512 based password encryption. | |
2684 | Implemented by Ulrich Drepper. | |
0304f168 UD |
2685 | |
2686 | * New locales: ber_DZ, ber_MA, en_NG, fil_PH, fur_IT, fy_DE, ha_NG, ig_NG, | |
2687 | ik_CA, iu_CA, li_BE, li_NL, nds_DE, nds_NL, pap_AN, sc_IT, tk_TM, ug_CN, | |
2688 | yo_NG. | |
2689 | ||
2690 | + New iconv modules: MAC-CENTRALEUROPE, ISO-8859-9E, KOI8-RU. | |
2691 | Implemented by Ulrich Drepper. | |
e1db0493 | 2692 | \f |
11bf311e | 2693 | Version 2.6 |
46c38bd7 | 2694 | |
d36b9613 UD |
2695 | * The following bugs are resolved with this release: |
2696 | ||
2697 | 3156, 3213, 3285, 3291, 3306, 3313, 3320, 3322, 3325, 3326, 3334, 3348, | |
2698 | 3352, 3363, 3369, 3426, 3427, 3429, 3451, 3458, 3465, 3480, 3483, 3493, | |
2699 | 3514, 3515, 3559, 3632, 3664, 3673, 3674, 3745, 3747, 3818, 3840, 3842, | |
2700 | 3851, 3855, 3884, 3885, 3902, 3905, 3919, 3944, 3954, 3955, 3957, 3991, | |
2701 | 3995, 3996, 4024, 4040, 4069, 4070, 4074, 4076, 4096, 4101, 4102, 4114, | |
2702 | 4130, 4131, 4181, 4276, 4306, 4342, 4344, 4349, 4364, 4368, 4381, 4392, | |
2703 | 4403, 4405, 4406, 4411, 4438, 4439, 4455, 4456, 4465, 4512, 4514, 4586, | |
2704 | 4702, 4858 | |
2705 | ||
bce20b9a | 2706 | * New Linux interfaces: epoll_pwait, sched_getcpu. |
46c38bd7 | 2707 | |
4a44ce79 UD |
2708 | * New generic interfaces: strerror_l. |
2709 | ||
b21fa963 | 2710 | * nscd can now cache the services database. Implemented by Ulrich Drepper. |
3af48b5b UD |
2711 | \f |
2712 | Version 2.5 | |
2713 | ||
d36b9613 UD |
2714 | * The following bugs are resolved with this release: |
2715 | ||
2716 | 39, 68, 192, 352, 388, 531, 935, 1006, 1201, 1203, 1386, 1782, 1783, 1784, | |
2717 | 1785, 1786, 1787, 1951, 1974, 1996, 2072, 2098, 2125, 2134, 2158, 2182, | |
2718 | 2349, 2376, 2386, 2389, 2415, 2418, 2420, 2423, 2450, 2451, 2466, 2472, | |
2719 | 2473, 2477, 2498, 2499, 2501, 2502, 2505, 2507, 2508, 2509, 2517, 2526, | |
2720 | 2569, 2571, 2592, 2611, 2625, 2632, 2644, 2662, 2680, 2683, 2684, 2693, | |
2721 | 2695, 2703, 2734, 2751, 2764, 2766, 2775, 2792, 2821, 2823, 2832, 2841, | |
2722 | 2843, 2883, 2892, 2908, 2914, 2926, 2961, 2978, 2980, 2987, 2997, 2998, | |
2723 | 3013, 3018, 3034, 3040, 3044, 3123, 3124, 3137, 3138, 3143, 3155, 3189, | |
2724 | 3225, 3251, 3252, 3253, 3273 | |
2725 | ||
3af48b5b | 2726 | * For Linux, the sorting of addresses returned by getaddrinfo now also |
457b559e UD |
2727 | handles rules 3, 4, and 7 from RFC 3484. I.e., all rules are handled. |
2728 | Implemented by Ulrich Drepper. | |
3af48b5b | 2729 | |
3142b1ac UD |
2730 | * Allow system admin to configure getaddrinfo with the /etc/gai.conf file. |
2731 | Implemented by Ulrich Drepper. | |
2732 | ||
871b9158 | 2733 | * New Linux interfaces: splice, tee, sync_file_range, vmsplice. |
1e528c6e UD |
2734 | |
2735 | * New iconv module for MIK. Contributed by Alexander Shopov. | |
3af48b5b | 2736 | |
3142b1ac UD |
2737 | * For sites with broken group and/or passwd database, the auto-propagate |
2738 | option of nscd can prevent creating ID lookup entries from the results | |
2739 | of a name lookup and vice versa. This usually is no problem but some | |
457b559e | 2740 | site might have problems with the default behavior. |
3142b1ac UD |
2741 | Implemented by Ulrich Drepper. |
2742 | ||
07bfff20 | 2743 | * Iterating over entire database in NIS can be slow. With the |
3142b1ac UD |
2744 | SETENT_BATCH_READ option in /etc/default/nss a system admin can decide |
2745 | to trade time for memory. The entire database will be read at once. | |
2746 | Implemented by Ulrich Drepper. | |
2747 | ||
07bfff20 UD |
2748 | * The interfaces introduced in RFC 3542 have been implemented by |
2749 | Ulrich Drepper. | |
2750 | ||
871b9158 UD |
2751 | * Support for the new ELF hash table format was added by Ulrich Drepper. |
2752 | ||
d5ba53f9 UD |
2753 | * Support for priority inheritance mutexes added by Jakub Jelinek and |
2754 | Ulrich Drepper. | |
2755 | ||
ad2a3c07 UD |
2756 | * Support for priority protected mutexes added by Jakub Jelinek. |
2757 | ||
88cc61e8 UD |
2758 | * New locales: nr_ZA, pa_PK, ca_AD, ca_FR, ca_IT, el_CY, tr_CY, as_IN, |
2759 | or_IN, csb_PL, fy_NL, sr_ME. | |
2e92188d | 2760 | \f |
137e6462 UD |
2761 | Version 2.4 |
2762 | ||
2763 | * More overflow detection functions. | |
2764 | ||
2765 | * New iconv converters for IBM1025, IBM1122, IBM1137, IBM1153, | |
2766 | IBM1154, IBM1155, IBM1156, IBM1157, and IBM1158 contributed by Jiro Sekiba. | |
1aa4e40a | 2767 | |
4973cbe5 UD |
2768 | More converters for IBM803, IBM901, IBM902, IBM921, IBM1008, IBM1097, |
2769 | IBM1112, IBM1123, IBM1130, IBM1140, IBM1141, IBM1142, IBM1143, IBM1144, | |
2770 | IBM1145, IBM1146, IBM1147, IBM1148, IBM1149, IBM1166, IBM1167, IBM4517, | |
2771 | IBM4899, IBM4909, IBM4971, IBM5347, IBM9030, IBM9066, IBM9448, IBM12712, | |
2772 | IBM16804, IBM1364, IBM1371, IBM1388, IBM1390, and IBM1399 contributed | |
2773 | by Masahide Washizawa. | |
2774 | ||
1aa4e40a UD |
2775 | * It is now possible to install audit libraries for the dynamic linker using |
2776 | LD_AUDIT. Implemented by Ulrich Drepper. | |
da0eaa47 RM |
2777 | |
2778 | * The LinuxThreads add-on, providing pthreads on Linux 2.4 kernels, is no | |
2779 | longer supported. The new NPTL implementation requires Linux 2.6 kernels. | |
2780 | For a libc and libpthread that works well on Linux 2.4 kernels, we | |
2781 | recommend using the stable 2.3 branch. | |
4973cbe5 | 2782 | |
35129bc0 RM |
2783 | * The new function open_wmemstream acts like open_memstream, |
2784 | but uses a wchar_t wide character buffer. | |
2785 | ||
2786 | * The new function ppoll is an improved version of poll, similar to pselect. | |
2787 | ||
2788 | * New interfaces: fdopendir, openat, fstatat, fchmodat, fchownat, | |
2789 | futimesat, faccessat, mkdirat, mkfifoat, mknodat, | |
2790 | renameat, unlinkat, linkat, symlinkat, readlinkat. | |
2791 | ||
2792 | * New Linux kernel system calls: unshare, | |
2793 | inotify_init, inotify_add_watch, inotify_rm_watch. | |
2794 | ||
2795 | * The euidaccess function is now also known by the alias eaccess, | |
2796 | for compatibility with some other systems. | |
2797 | ||
2798 | * Timezone data updated to 2006b version. | |
137e6462 | 2799 | \f |
e6a9beca RM |
2800 | Version 2.3.6 |
2801 | ||
2802 | * The following bugs are resolved with this release: | |
2803 | ||
2804 | 38, 253, 549, 622, 653, 721, 758, 851, 877, 915, 934, 955, 961, | |
2805 | 1016, 1037, 1076, 1079, 1080, 1081, 1082, 1083, 1084, 1085, 1086, | |
2806 | 1087, 1088, 1090, 1091, 1092, 1093, 1094, 1095, 1096, 1097, 1098, | |
2807 | 1099, 1100, 1101, 1102, 1103, 1104, 1105, 1106, 1107, 1108, 1109, | |
2808 | 1110, 1111, 1112, 1113, 1125, 1137, 1138, 1249, 1250, 1251, 1252, | |
2809 | 1253, 1254, 1350, 1358, 1394, 1438, 1498, 1534 | |
2810 | ||
2811 | Visit <http://sources.redhat.com/bugzilla/> for the details of each bug. | |
2812 | ||
2813 | * As of this release, GCC 4 can be used to compile the C Library. | |
2814 | ||
2815 | * Timezone data updated to 2005m version. | |
2816 | \f | |
da232bf9 RM |
2817 | Version 2.3.5 |
2818 | ||
2819 | * The following bugs are resolved with this release: | |
2820 | ||
2821 | 284, 592, 602, 626, 633, 640, 650, 661, 671, 681, 693, 700, 710, 719, | |
2822 | 722, 723, 725, 726, 727, 728, 729, 730, 731, 732, 733, 734, 735, 736, | |
2823 | 737, 738, 739, 740, 741, 742, 743, 744, 745, 765, 767, 768, 769, 776, | |
2824 | 777, 787, 821, 822, 823, 825 | |
2825 | ||
2826 | Visit <http://sources.redhat.com/bugzilla/> for the details of each bug. | |
2827 | \f | |
a55bda85 UD |
2828 | Version 2.3.4 |
2829 | ||
2830 | * Support for RFC 3678. Real implementations exist only for Linux so far. | |
2831 | Implemented by Ulrich Drepper. | |
8a1f658b UD |
2832 | |
2833 | * nscd can now cache entries persistently. Expiring entries are reloaded. | |
2834 | For speedups the cache can be shared in memory with client processes. | |
2835 | Implemented by Ulrich Drepper. | |
2836 | ||
2837 | * nscd can now perform SELinux checks. | |
2838 | Implemented by Matthew Rickard <mjricka@epoch.ncsc.mil>. | |
2839 | ||
0325dd20 | 2840 | * getaddrinfo queries are now cached. Canonical name lookup is performed |
8a1f658b UD |
2841 | efficiently. |
2842 | Implemented by Ulrich Drepper. | |
2843 | ||
2844 | * The nothrow function attribute is used when headers are used by gcc when | |
2845 | compiling C code. This can avoid significant amounts of exception | |
2846 | handling data. | |
2847 | ||
2848 | * The malloc functions perform more error checking and are stricter when | |
2849 | it comes to reacting on errors. The default action is to terminate | |
0325dd20 | 2850 | the process after showing an error message. Implemented by Ulrich Drepper. |
8a1f658b UD |
2851 | |
2852 | * Reverse lookups of IPv6 addresses does not use bit string or .ip6.int | |
0325dd20 UD |
2853 | lookups anymore unless explicitly requested. Implemented by Ulrich Drepper. |
2854 | ||
2855 | * Namespaces in ld.so are implemented. DSOs can be loaded in separate | |
2856 | namespaces using the new function dlmopen(). This feature is of course, | |
2857 | like most other dynamic loading functionality, not available in statically | |
2858 | linked applications. Implemented by Ulrich Drepper. | |
2859 | ||
2860 | * Low-overhead boundary checking variants of string and some stdio functions | |
2861 | were added. These are to be used in conjunction with a gcc patch by | |
2862 | Jakub Jelinek which adds calls to these functions if possible. | |
720817e7 RM |
2863 | Implemented by Jakub Jelinek and Ulrich Drepper. |
2864 | ||
2865 | * Old code for several operating systems and machine architectures that | |
2866 | have not been in working condition in a long time have been removed from | |
2867 | the main source tree maintained by the GNU C Library's maintainers. | |
2868 | These files are now reside in the separate `ports' source module | |
2869 | that is usable as an add-on when building the library. | |
a55bda85 | 2870 | \f |
3a601d31 RM |
2871 | Version 2.3.3 |
2872 | ||
45e4762c RM |
2873 | * New functions `dladdr1' and `dlinfo' in <dlfcn.h> provide more ways to |
2874 | interrogate the dynamic linker, compatible with the Solaris interface. | |
2875 | ||
3a601d31 RM |
2876 | * ELF thread-local storage support (TLS) now works on PowerPC and PowerPC64; |
2877 | implemented by Paul Mackerras, Steven Munroe, and Roland McGrath. | |
925c3c5c | 2878 | |
69be6aaf | 2879 | * getifaddrs now uses the netlink interface on Linux to get its information. |
925c3c5c UD |
2880 | Implemented by Thorsten Kukuk. |
2881 | ||
2882 | * getaddrinfo now implements AI_V4MAPPED, AI_ALL, and AI_ADDRCONF. | |
2883 | Implemented by Ulrich Drepper. | |
97fd3a30 UD |
2884 | |
2885 | * support for non-executable stacks on x86 has been added. Changes mostly | |
2886 | by Roland McGrath. | |
2887 | ||
c5af724c | 2888 | * regex is now much faster for multibyte locales. Changes by Jakub Jelinek |
97fd3a30 UD |
2889 | and Ulrich Drepper. |
2890 | ||
2891 | * getaddrinfo now performs destination address selection according to | |
2892 | RFC 3484. | |
3a601d31 | 2893 | \f |
747bf98e RM |
2894 | Version 2.3.2 |
2895 | ||
f87277f2 RM |
2896 | * Thread-safe interfaces for many functions that access locale data |
2897 | were added in version 2.3, but these features were omitted from NEWS. | |
2898 | Many functions have variants with an `_l' suffix that take a `locale_t' | |
2899 | object as a parameter rather than consulting the current locale. | |
2900 | The new functions `newlocale', `duplocale', and `freelocale' in <locale.h> | |
2901 | create and maintain `locale_t' objects. Additionally, the new function | |
2902 | `uselocale' sets "the current locale" (as used by functions not so | |
2903 | parameterized) set for an individual thread. These features were added | |
2904 | in version 2.3, implemented by Ulrich Drepper and Roland McGrath. | |
2905 | ||
747bf98e RM |
2906 | * The functions getresuid, getresgid, setresuid, and setresgid, which |
2907 | have long been available on Linux, are now declared in <unistd.h> | |
2908 | and are now also available on the Hurd. | |
2909 | ||
2910 | * ELF thread-local storage support (TLS) now works on x86-64. | |
d62507dd RM |
2911 | |
2912 | * The new dynamic string token $LIB is expanded in shared library names. | |
2913 | This normally expands to lib, but on some 64-bit platforms to lib64 instead. | |
52a16e58 | 2914 | |
f87277f2 RM |
2915 | * Aldy Hernandez contributed complete software floating point support for |
2916 | PowerPC machines with no FPU. | |
2917 | ||
52a16e58 | 2918 | * fexecve is implemented on Linux. |
f9ad060c | 2919 | |
f87277f2 RM |
2920 | * The `btowc' function should work at least twice as fast due to |
2921 | specialized callbacks in the iconv modules. Implemented by Bruno Haible. | |
9ef0a840 UD |
2922 | |
2923 | * With approriate thread add-ons cancelable functions are now implemented | |
2924 | in libc.so as well. No need to call the function in libpthread. This | |
2925 | change allowed to finally disable the incorrect and expensive handling | |
2926 | of weak definition in ld.so. | |
2927 | ||
2928 | * Yet more PLT entries in libc.so have been removed. We finally arrived | |
2929 | at the bare minimum. Startup times improved appropriately. | |
2930 | ||
2931 | * Support for the new Linux/x86 system call interface was added. The | |
2932 | AT_SYSINFO auxiliary vector entry is recognized and handled. | |
747bf98e | 2933 | \f |
03a2c647 | 2934 | Version 2.3 |
37fb1084 | 2935 | |
03a2c647 UD |
2936 | * Masahide Washizawa contributed iconv modules for IBM1163 and IBM1164 |
2937 | charsets. | |
2938 | ||
2939 | * iconv (the program and the interface) now accepts empty names (excluding | |
2940 | options like //TRANSLIT) to mean "use charset of current locale". | |
47e8b443 | 2941 | |
bb0ec5bd | 2942 | * localedef can now transliterate characters in strings which are not in |
47e8b443 | 2943 | the provided charmap. The information from the input locale is used. |
c17f665b UD |
2944 | |
2945 | * Prelinking support was added for ELF targets. This requires additional | |
2946 | tools and recent versions of the GNU binutils. Contributed by Jakub Jelinek. | |
8e57fc70 | 2947 | |
bb0ec5bd | 2948 | * Read-only stdio streams now use mmap to speed up operation by eliminating |
91e6367e UD |
2949 | copying and buffer underflows. To use add 'm' to the mode string of |
2950 | the fopen/fdopen/freopen call. Implemented by Ulrich Drepper. | |
207b66ce UD |
2951 | |
2952 | * The malloc functions were completely rewritten by Wolfram Gloger based | |
2953 | on Doug Lea's malloc-2.7.0.c. | |
3b0bdc72 | 2954 | |
bb0ec5bd | 2955 | * Isamu Hasegawa contributed a completely new and POSIX-conformant |
3b0bdc72 | 2956 | implementation of regex. |
02779eaa UD |
2957 | |
2958 | * Bruno Haible upgraded the iconv and locale implementation to support | |
2959 | Unicode 3.2. | |
be45f421 | 2960 | |
bb0ec5bd RM |
2961 | * Contents of the LC_* and LANG environment variables in the CEN style are |
2962 | not recognized anymore. It never was used. Change by Ulrich Drepper. | |
be45f421 | 2963 | |
bb0ec5bd RM |
2964 | * The runtime (ld.so, libc, libpthread for Linux) now can handle the ELF |
2965 | thread-local storage (TLS) ABI on some platforms. | |
2966 | Changes by Ulrich Drepper. SH support by Kaz Kojima. | |
be45f421 UD |
2967 | |
2968 | * Bruno Haible contributed iconv converters for ISO-2022-JP-3, SHIFT JIS-X0213, | |
f87277f2 | 2969 | EUC-JISX0213, and TSCII. |
a753ffb2 RM |
2970 | |
2971 | * New header <ifaddrs.h> with functions `getifaddrs' and `freeifaddrs': | |
2972 | BSD-compatible interface for getting all network interface addresses. | |
2973 | Implementation for IPv4 by Roland McGrath. | |
6a9340b5 UD |
2974 | |
2975 | * Loading of locale data is faster due to the introduction of a locale | |
2976 | archive. Implemented by Roland McGrath and Ulrich Drepper. | |
dd4f2115 UD |
2977 | |
2978 | * Startup times are significantly reduced by not using exported functions | |
2979 | inside the library itself. Changes by Jakub Jelinek, Roland McGrath, | |
2980 | and Ulrich Drepper. | |
c843e065 RM |
2981 | |
2982 | * Steven Munroe contributed a port to PowerPC64/Linux. | |
2983 | \f | |
45061a15 RM |
2984 | Version 2.2.6 |
2985 | ||
2986 | * The Hurd now uses the GNU libio implementation of stdio rather than the | |
2987 | old GNU stdio implementation, and uses a new ABI (libc.so.0.3). | |
2988 | ||
2989 | * The Hurd on x86 now has the `ioperm' function and <sys/io.h> header file | |
2990 | with the same behavior as the Linux system call of the same name. | |
03a2c647 | 2991 | \f |
a8ae31c2 UD |
2992 | Version 2.2.5 |
2993 | ||
76321a25 AJ |
2994 | * Stephen Moshier implemented log2, log10, powl and cbrtl for the |
2995 | 128-bit long double format. | |
a8ae31c2 | 2996 | |
557a9213 UD |
2997 | * Masahide Washizawa contributed iconv modules for IBM1132, IBM1133, IBM1160, |
2998 | IBM1161, and IBM1162 charsets. | |
a8ae31c2 | 2999 | |
ad2e4f18 | 3000 | * Andreas Jaeger contributed a port to x86-64/Linux. |
a8ae31c2 | 3001 | |
7d0c5823 RM |
3002 | * Peter Bruin contributed a port to PowerPC/Hurd. |
3003 | ||
a8ae31c2 UD |
3004 | * libc functions using I/O streams now can handle wide-oriented streams |
3005 | as well. | |
3006 | ||
45061a15 RM |
3007 | * optimizations in the dynamic linker. Binaries created by recent binutils |
3008 | versions start up quicker due to reduced time spent on relocations. | |
8e57fc70 UD |
3009 | |
3010 | * Support for use of gcc3 added by Jakub Jelinek and HJ Lu. | |
7d0c5823 | 3011 | \f |
33996419 AJ |
3012 | Version 2.2.4 |
3013 | ||
2995f70e | 3014 | * Stephen Moshier implemented cosh, expm1, log1p, acos, sinh, tanh, |
aff17a50 | 3015 | asinh, atanh, j0 for the 128-bit long double format. |
8fee1bb0 UD |
3016 | |
3017 | * Bruno Haible updated all the code handling Unicode in some form to | |
3018 | support Unicode 3.1. | |
86dbe05e UD |
3019 | |
3020 | * Speed of regex for single-byte locales is back to previous levels. | |
3021 | Patch by Isamu Hasegawa. | |
045fcd26 | 3022 | |
69d5f925 | 3023 | * Alpha, SPARC, and IA-64 now also using floating stacks. |
045fcd26 | 3024 | |
69d5f925 | 3025 | * Startup time of internationalized applications greatly improved through |
045fcd26 UD |
3026 | iconv cache. Use iconvconfig to generate the cache file. |
3027 | Contributed by Ulrich Drepper. | |
3028 | ||
3029 | * The IA-64 specific part of ld.so was rewritten to eliminate some pretty | |
3030 | severe performance problems. Patch by David Mosberger. | |
3031 | ||
3032 | * The Hurd port got a lot more functionality like AIO, various stdio | |
3033 | extensions, etc. Mainly done by Roland McGrath. | |
129d706d UD |
3034 | |
3035 | * mtrace can now lookup symbols in shared libraries. | |
33996419 | 3036 | \f |
2ace5721 UD |
3037 | Version 2.2.3 |
3038 | ||
1746f2b0 | 3039 | * Intel's IA-64 math library is largely integrated. It provides fast and |
2ace5721 UD |
3040 | accurate implementatations for most basic and standard math functions |
3041 | in float, double, and long double format. | |
3042 | ||
f128331c | 3043 | * Stephen Moshier implemented j0, j1, jn, y0, y1, yn, lgamma, erf, erfc, |
b8750342 UD |
3044 | and asin for the 96-bit long double format and asin, log, tan for the |
3045 | 128-bit long double format. | |
07f951e4 | 3046 | |
e4d82761 UD |
3047 | * The beginning of a last-bit accurate math library by IBM Haifa were added. |
3048 | The basic double functions exist today. Contributed by Abraham Ziv | |
3049 | <ziv@il.ibm.com>, Moshe Olshansky <olshansk@il.ibm.com>, Ealan Henis | |
3050 | <ealan@il.ibm.com>, and Anna Reitman <reitman@il.ibm.com>. | |
3051 | ||
2ace5721 UD |
3052 | * An asynchronous name lookup library was added. The interface is designed |
3053 | after POSIX AIO. The proposal was circulated beforehand to get comments. | |
3054 | No negative ones came in. Implemented by Ulrich Drepper. | |
b8a8413c UD |
3055 | |
3056 | * Port to S390/64bit contributed by Martin Schwidefsky | |
3057 | <schwidefsky@de.ibm.com>. | |
a66f0958 UD |
3058 | |
3059 | * David Mosberger <davidm@hpl.hp.com> implemented the setcontext family | |
3060 | of functions for Linux/IA-64. | |
481b550f UD |
3061 | |
3062 | * The RPC code is now thread safe. Threads can now use the same service | |
3063 | of different services at the same time. Patch by Eric Norum | |
3064 | <eric.norum@usask.ca> with some help by Ulrich Drepper. | |
f128331c UD |
3065 | |
3066 | * Martin Schwidefsky <schwidefsky@de.ibm.com> implemented the setcontext | |
3067 | family of functions for Linux/S390. | |
232fdf8c UD |
3068 | |
3069 | * Ulrich Drepper <drepper@redhat.com> implemented the setcontext family | |
3070 | of functions for Linux/x86. | |
eacde9d0 UD |
3071 | |
3072 | * Port to Linux/CRIS contributed by Axis Communications. | |
2ace5721 | 3073 | \f |
306eeae5 UD |
3074 | Version 2.2.2 |
3075 | ||
464d97ec | 3076 | * Lots of headers were cleaned up. Using the tool in the conform/ subdir |
306eeae5 UD |
3077 | we can now check for namespace violations and missing declarations. The |
3078 | result is that almost all headers are now Unix-compliant (as defined in | |
3079 | the upcoming XPG6). The negative side is that some programs might need | |
3080 | corrections, too, if they depend on the incorrect form of the headers in | |
3081 | previous versions which defined too many symbols and included too many | |
3082 | other headers. | |
464d97ec UD |
3083 | |
3084 | * regex now handles multibyte character sets correctly. | |
3085 | Contributed by Isamu Hasegawa <isamu@yamato.ibm.com>. | |
3086 | ||
3087 | * iconv (the program) does now conform to the upcoming XPG6 and handles | |
3088 | charmaps. Instead of the charset names the path of charmaps can be | |
3089 | provided and the conversion happens based on this data. | |
3090 | Contributed by Ulrich Drepper. | |
3091 | ||
3092 | * The locale program now provides detailed information about the installed | |
3093 | locales. While | |
3094 | ||
3095 | locale -a | |
3096 | ||
3097 | only lists the names of the supported locales | |
3098 | ||
3099 | locale -a --verbose | |
3100 | ||
3101 | provides details such as country, language, and codeset name. | |
3102 | Contributed by Ulrich Drepper. | |
306eeae5 | 3103 | \f |
d2defdc4 UD |
3104 | Version 2.2.1 |
3105 | ||
3106 | * The gencat program now parses the input file according to the charset | |
3107 | selected by the LC_CTYPE category. This is important for stateful | |
3108 | character sets. To make generating catalogs easier there is a way | |
3109 | to overwrite the charset selected by the locale: before the first | |
3110 | message or $ quote line the catalog can contain a line like | |
3111 | ||
3112 | $ codeset=ISO-8859-2 | |
3113 | ||
3114 | to select the charset (ISO-8859-2 in this case). | |
3115 | ||
3116 | Implemented by Shinya Hanataka and Ulrich Drepper. | |
aea6353a UD |
3117 | |
3118 | * New codeset conversion modules: IBM-922 (Estonia PC codeset), | |
3119 | IBM-1124 (Ukraine PC codeset), IBM-1129 (Vietnamese PC codeset). | |
3120 | Contributed by Masahide Washizawa <washi@jp.ibm.com>. | |
234669e2 UD |
3121 | |
3122 | * Optimized string functions for Alpha ev6 and ev67 by Richard Henderson | |
3123 | <rth@redhat.com> and Rick Gorton <rick.gorton@alpha-processor.com>. | |
3124 | ||
3125 | * The LANGUAGE environment variable is now ignored unless the locale is | |
3126 | changed from the default "C" locale. | |
3127 | ||
3128 | * The usual bug fixes. | |
d2defdc4 | 3129 | \f |
2e92188d UD |
3130 | Version 2.2 |
3131 | ||
08a2e4a0 GM |
3132 | * Greg McGary added runtime support for bounds checking using gcc's |
3133 | new -fbounded-pointers option. ix86 target is complete. PowerPC | |
3134 | is in progress. | |
3135 | ||
2e92188d UD |
3136 | * Thorsten Kukuk added secure mode support to nscd. |
3137 | ||
793bd4d9 | 3138 | * The Berkeley db libraries have been removed. |
2e92188d | 3139 | |
47b853e8 UD |
3140 | Related, the nss_db module is now in a separate package since it |
3141 | obviously requires a database library being available. | |
3142 | ||
0013b2b1 UD |
3143 | * Wide character I/O streams implemented by Ulrich Drepper. |
3144 | ||
abbffdf9 | 3145 | * Functions from the extended socket API added by Ulrich Drepper. |
01c771d0 | 3146 | |
6e8afc1c UD |
3147 | * Functions feenableexcept and fedisableexcept to control the |
3148 | behaviour of individual exceptions have been added by Andreas Jaeger. | |
3149 | ||
591e1ffb UD |
3150 | * ldconfig program added by Andreas Jaeger and Jakub Jelinek. |
3151 | ||
d3436b3c UD |
3152 | * The resolver code has been updated from bind 8.2.3-T5B which supports |
3153 | threads. The integration was done by Andreas Jaeger, Adam D. Bradley, | |
3154 | and Mark Kettenis. | |
2588068b UD |
3155 | |
3156 | This change could in some situations effect backward compatibility. Since | |
3157 | now `_res' is a thread-local instead of a global variable, modifying it | |
3158 | in one thread does not have any effect in other threads. | |
66ac0abe | 3159 | |
a00c3ca9 | 3160 | The resolver library was also extended to allow IPv6 as the transport |
d3436b3c UD |
3161 | protocol for the requests. This work was done by Stig Venaas. |
3162 | ||
1c5d4617 UD |
3163 | * Compatibility code for K&R C compilers has been removed from the |
3164 | header files. A ISO C compiler is needed to use the library | |
3165 | (conforming to either C89 or C99 standard). | |
3166 | ||
abbffdf9 UD |
3167 | * Complete rewrite of the localedef program to support multibyte character |
3168 | sets. Implement handling of ISO 14651 and ISO 14652. Rewrite strcoll, | |
3169 | strxfrm, wcscoll, and wcsxfrm functions. Make isw*() functions work. | |
3170 | Implemented by Ulrich Drepper. | |
3171 | ||
8f3f1e09 UD |
3172 | Bruno Haible significantly improved the generation and use of the data |
3173 | structures for the wide character tables. | |
3174 | ||
abbffdf9 UD |
3175 | * Plural handling in gettext implemented by Ulrich Drepper. |
3176 | ||
69173865 UD |
3177 | * The utmp daemon has been removed. |
3178 | ||
3179 | * The port to MIPS-Linux has been finished by Andreas Jaeger. | |
3180 | ||
37fb8add UD |
3181 | * A port to Hitachi SH3 and SH4 has been contributed by Kazumoto Kojima |
3182 | and Yutaka Niibe. | |
3183 | ||
594cee6c UD |
3184 | * POSIX clocks and timers implemented by Kaz Kylheku and Ulrich Drepper. |
3185 | ||
40c4c9b5 UD |
3186 | * POSIX barriers implemented by Kaz Kylheku. |
3187 | ||
594cee6c UD |
3188 | * POSIX spawn function family implemented by Ulrich Drepper. |
3189 | ||
3190 | * POSIX spinlocks are now available. | |
3191 | ||
40c4c9b5 UD |
3192 | * Timed wait functions for mutex, rwlock, and semaphores are implemented. |
3193 | ||
8f3f1e09 UD |
3194 | * the configure option --enable-kernel=X.Y.Z allows to strip out |
3195 | compatibility for kernel versions before X.Y.Z. This is currently only | |
3196 | implemented for Linux. | |
3197 | ||
3107c0c5 UD |
3198 | * the sockaddr_in6 structure changed. The IPv6 working group added a new |
3199 | field sin6_scope_id. This means that all programs using IPv6 should be | |
3200 | recompiled. Don't expect binary compatibility with previous glibc | |
3201 | versions. | |
3202 | ||
d2830ba4 UD |
3203 | * various conversion modules for IBM character sets contributed by |
3204 | Masahide Washizawa. | |
3205 | ||
8f3f1e09 | 3206 | * IA-64 port by Jes Sorensen and HJ Lu. |
6f2a8167 UD |
3207 | \f |
3208 | Version 2.1.3 | |
3209 | ||
3210 | * bug fixes | |
3211 | ||
01c771d0 UD |
3212 | \f |
3213 | Version 2.1.2 | |
3214 | ||
3215 | * bug fixes | |
3216 | ||
28f540f4 | 3217 | \f |
e518937a UD |
3218 | Version 2.1.1 |
3219 | ||
27995311 UD |
3220 | * New ISO C 9x function _Exit, imaxabs, and imaxdiv are added. |
3221 | ||
16b0f634 UD |
3222 | * New xdr functions are added; some rpc functions are now 64bit clean. |
3223 | ||
407d26b7 | 3224 | * Fixed a number of bugs and memory leaks (especially in NIS+ code). |
16b0f634 UD |
3225 | |
3226 | * Fixed known incompatibilities with glibc 2.0. | |
3227 | ||
407d26b7 | 3228 | * New functions lock64, strchrnul, rawmemchr, getutmp and getutmpx. |
16b0f634 | 3229 | |
407d26b7 | 3230 | * Optimized a number of functions (especially the ELF dynamic loader). |
16b0f634 UD |
3231 | |
3232 | * Update timezone data files. | |
27995311 | 3233 | |
554b8800 UD |
3234 | * lots of charmaps corrections |
3235 | ||
3236 | * some new locale definitions and charmaps | |
3237 | ||
e518937a | 3238 | \f |
c84142e8 UD |
3239 | Version 2.1 |
3240 | ||
da2d1bc5 UD |
3241 | * Richard Henderson corrected size of struct timeval on Linux/Alpha to |
3242 | conform to POSIX member type requirements. Symbol versions have been | |
3243 | adjusted as needed within the library, and for direct use by applications, | |
3244 | but there is potential for problems if third-party libraries use | |
3245 | struct timeval as part of their interface. This does not present | |
3246 | a problem for X and other "essential" system libraries. | |
3247 | ||
c84142e8 | 3248 | * An additional locale model to support C++ Standard Library locale |
1fb05e3d | 3249 | model and probably more was implemented by Ulrich Drepper. |
c84142e8 | 3250 | |
1fb05e3d | 3251 | * Eric Youngdale and Ulrich Drepper implemented versioning of objects on |
c84142e8 UD |
3252 | symbol level. |
3253 | ||
3254 | * Miles Bader provided the `argp' function family to support hierachical | |
3255 | command line argument parsing, layered on top of getopt. | |
377a515b | 3256 | |
cbdee279 | 3257 | * strtod accepts new hexadecimal floating-point format from ISO C 9X. |
377a515b UD |
3258 | |
3259 | * printf has two new specifiers %a and %A to print hexadecimal flaoting-point | |
cbdee279 | 3260 | numbers. |
377a515b | 3261 | |
cbdee279 | 3262 | * scanf recognizes the %a and %A format for scanning floating point numbers. |
e61abf83 | 3263 | |
48869012 UD |
3264 | * the new headers <stdint.h> and <inttypes.h> from ISO C 9X provides |
3265 | information and interfaces for the available integer types. | |
e61abf83 | 3266 | |
813f4f4d UD |
3267 | * about 130 new math functions were added to implement the ISO C9x math |
3268 | library. | |
3269 | ||
e61abf83 | 3270 | * the new header <complex.h> contains definitions of the complex math |
cbdee279 UD |
3271 | functions from ISO C 9X. |
3272 | ||
3273 | * the new header <tgmath.h> defines generic macros to use complex or | |
3274 | real valued functions. | |
e61abf83 | 3275 | |
a5a0310d | 3276 | * Thorsten Kukuk provided an implementation for NIS+, securelevel 0, 1 and 2. |
e61abf83 | 3277 | |
a5a0310d UD |
3278 | * Andreas Jaeger provided a test suite for the math library. |
3279 | ||
3280 | * Mark Kettenis implemented the utmpx interface and an utmp daemon. | |
cbdee279 | 3281 | |
440d13e2 | 3282 | * Ulrich Drepper added character set conversion functions (iconv). |
cbdee279 UD |
3283 | |
3284 | * Optimized string functions have been added. | |
3285 | ||
3286 | * The localedata addon is now part of glibc. | |
2eb45444 UD |
3287 | |
3288 | * An implementation of profiling shared libraries was added by Ulrich Drepper. | |
ea278354 | 3289 | |
48244d09 UD |
3290 | * Thorsten Kukuk and Ulrich Drepper provided an implementation for a caching |
3291 | daemon for NSS (nscd). | |
3292 | ||
3293 | Missing a better place here are some numbers on improvements. Under | |
3294 | Linux 2.1.125 un-tar-ing the kernel sources takes | |
3295 | ||
0dee6738 | 3296 | user system wall |
48244d09 | 3297 | |
0dee6738 | 3298 | using local files 12.19s 6.88s 22.91s |
48244d09 | 3299 | |
0dee6738 | 3300 | using NIS 13.92s 8.91s 26.34s |
48244d09 | 3301 | |
0dee6738 | 3302 | using NIS & nscd 10.37s 7.34s 25.30s |
48244d09 | 3303 | |
0dee6738 UD |
3304 | using NIS+ 27.57s 30.37s 640.46s |
3305 | ||
3306 | using NIS+ & nscd 10.25s 7.83s 26.51s | |
3307 | ||
3308 | using NIS & old nscd [1] 13.83s 8.32s 29.60s | |
48244d09 | 3309 | |
48244d09 UD |
3310 | Keep in mind that non-namelookup related operations dominate above times. |
3311 | It was just a common complain that using NIS+ unpacking the kernel is | |
0dee6738 | 3312 | horribly slow. |
48244d09 | 3313 | |
0dee6738 UD |
3314 | [1] The old nscd implementation is not available anymore since it was |
3315 | distributed with glibc up to version 2.0.98 and thus is now replaced. | |
ea278354 UD |
3316 | |
3317 | * Tim Waugh provided an implementation of the POSIX.2 wordexp function family. | |
48869012 UD |
3318 | |
3319 | * Mark Kettenis provided a Hesiod NSS module. | |
20833331 UD |
3320 | |
3321 | * The ELF dynamic loader knows how to process dynamic string tokens ($ORIGIN | |
3322 | and $PLATFORM) in RPATHs and similar strings (Ulrich Drepper). | |
3323 | ||
3324 | * rcmd can now handle netgroups (Dick Streefland). | |
48244d09 | 3325 | |
62595351 UD |
3326 | * A port to the ARM was contributed by Phil Blundell, Pat Beirne and Scott |
3327 | Bambrough. | |
3328 | ||
3329 | * Support for the IPv6 protocol has been added to the socket API, as per the | |
3330 | latest draft standards. | |
3331 | ||
1770a20d UD |
3332 | * Support for Linux 2.2 has been added. |
3333 | ||
48244d09 UD |
3334 | * Interface changes relative to the latest 2.0.x release: |
3335 | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ | |
62595351 | 3336 | addseverity NEW: Unix98 |
48244d09 | 3337 | alphasort64 NEW: LFS |
62595351 UD |
3338 | argp_err_exit_status NEW: argp, GNU ext |
3339 | argp_error NEW: argp, GNU ext | |
3340 | argp_failure NEW: argp, GNU ext | |
3341 | argp_help NEW: argp, GNU ext | |
3342 | argp_parse NEW: argp, GNU ext | |
3343 | argp_program_bug_address NEW: argp, GNU ext | |
3344 | argp_program_version NEW: argp, GNU ext | |
3345 | argp_program_version_hook NEW: argp, GNU ext | |
3346 | argp_state_help NEW: argp, GNU ext | |
3347 | argp_usage NEW: argp, GNU ext | |
e980ca92 UD |
3348 | authdes_create NEW: Secure RPC |
3349 | authdes_getucred NEW: Secure RPC | |
3350 | authdes_pk_create NEW: Secure RPC | |
48244d09 UD |
3351 | backtrace NEW: GNU ext. |
3352 | backtrace_symbols NEW: GNU ext. | |
3353 | backtrace_symbols_fd NEW: GNU ext. | |
3354 | cacos NEW: ISO C 9x | |
3355 | cacosf NEW: ISO C 9x | |
3356 | cacosh NEW: ISO C 9x | |
3357 | cacoshf NEW: ISO C 9x | |
3358 | cacoshl NEW: ISO C 9x | |
3359 | cacosl NEW: ISO C 9x | |
3360 | capget NEW: kernel | |
3361 | capset NEW: kernel | |
3362 | carg NEW: ISO C 9x | |
3363 | cargf NEW: ISO C 9x | |
3364 | cargl NEW: ISO C 9x | |
3365 | casin NEW: ISO C 9x | |
3366 | casinf NEW: ISO C 9x | |
3367 | casinh NEW: ISO C 9x | |
3368 | casinhf NEW: ISO C 9x | |
3369 | casinhl NEW: ISO C 9x | |
3370 | casinl NEW: ISO C 9x | |
3371 | catan NEW: ISO C 9x | |
3372 | catanf NEW: ISO C 9x | |
3373 | catanh NEW: ISO C 9x | |
3374 | catanhf NEW: ISO C 9x | |
3375 | catanhl NEW: ISO C 9x | |
3376 | catanl NEW: ISO C 9x | |
e980ca92 | 3377 | cbc_crypt NEW: Secure RPC |
48244d09 UD |
3378 | ccos NEW: ISO C 9x |
3379 | ccosf NEW: ISO C 9x | |
3380 | ccosh NEW: ISO C 9x | |
3381 | ccoshf NEW: ISO C 9x | |
3382 | ccoshl NEW: ISO C 9x | |
3383 | ccosl NEW: ISO C 9x | |
3384 | cexp NEW: ISO C 9x | |
3385 | cexpf NEW: ISO C 9x | |
3386 | cexpl NEW: ISO C 9x | |
3387 | cimag NEW: ISO C 9x | |
3388 | cimagf NEW: ISO C 9x | |
3389 | cimagl NEW: ISO C 9x | |
3390 | clearerr_locked REMOVED | |
3391 | clntunix_create NEW: sunrpc ext | |
3392 | clog NEW: ISO C 9x | |
3393 | clog10 NEW: ISO C 9x | |
3394 | clog10f NEW: ISO C 9x | |
3395 | clog10l NEW: ISO C 9x | |
3396 | clogf NEW: ISO C 9x | |
3397 | clogl NEW: ISO C 9x | |
3398 | conj NEW: ISO C 9x | |
3399 | conjf NEW: ISO C 9x | |
3400 | conjl NEW: ISO C 9x | |
3401 | cpow NEW: ISO C 9x | |
3402 | cpowf NEW: ISO C 9x | |
3403 | cpowl NEW: ISO C 9x | |
3404 | cproj NEW: ISO C 9x | |
3405 | cprojf NEW: ISO C 9x | |
3406 | cprojl NEW: ISO C 9x | |
3407 | creal NEW: ISO C 9x | |
3408 | crealf NEW: ISO C 9x | |
3409 | creall NEW: ISO C 9x | |
3410 | creat64 NEW: LFS | |
3411 | csin NEW: ISO C 9x | |
3412 | csinf NEW: ISO C 9x | |
3413 | csinh NEW: ISO C 9x | |
3414 | csinhf NEW: ISO C 9x | |
3415 | csinhl NEW: ISO C 9x | |
3416 | csinl NEW: ISO C 9x | |
3417 | csqrt NEW: ISO C 9x | |
3418 | csqrtf NEW: ISO C 9x | |
3419 | csqrtl NEW: ISO C 9x | |
3420 | ctan NEW: ISO C 9x | |
3421 | ctanf NEW: ISO C 9x | |
3422 | ctanh NEW: ISO C 9x | |
3423 | ctanhf NEW: ISO C 9x | |
3424 | ctanhl NEW: ISO C 9x | |
3425 | ctanl NEW: ISO C 9x | |
e980ca92 UD |
3426 | des_setparity NEW: Secure RPC |
3427 | ecb_crypt NEW: Secure RPC | |
62595351 | 3428 | endutxent NEW: Unix98 |
48244d09 UD |
3429 | exp10 NEW: ISO C 9x |
3430 | exp10f NEW: ISO C 9x | |
3431 | exp10l NEW: ISO C 9x | |
3432 | exp2 NEW: ISO C 9x | |
3433 | exp2f NEW: ISO C 9x | |
3434 | exp2l NEW: ISO C 9x | |
3435 | fattach NEW: STREAMS | |
3436 | fdetach NEW: STREAMS | |
3437 | fdim NEW: ISO C 9x | |
3438 | fdimf NEW: ISO C 9x | |
3439 | fdiml NEW: ISO C 9x | |
3440 | feclearexcept NEW: ISO C 9x | |
3441 | fegetenv NEW: ISO C 9x | |
3442 | fegetexceptflag NEW: ISO C 9x | |
3443 | fegetround NEW: ISO C 9x | |
3444 | feholdexcept NEW: ISO C 9x | |
3445 | feof_locked REMOVED | |
3446 | feraiseexcept NEW: ISO C 9x | |
3447 | ferror_locked REMOVED | |
3448 | fesetenv NEW: ISO C 9x | |
3449 | fesetexceptflag NEW: ISO C 9x | |
3450 | fesetround NEW: ISO C 9x | |
3451 | fetestexcept NEW: ISO C 9x | |
3452 | feupdateenv NEW: ISO C 9x | |
3453 | fflush_locked REMOVED | |
3454 | ffsl NEW: GNU ext. | |
3455 | ffsll NEW: GNU ext. | |
3456 | fgetpos64 NEW: LFS | |
3457 | fgets_unlocked NEW: GNU ext. | |
3458 | fileno_locked REMOVED | |
3459 | fma NEW: ISO C 9x | |
3460 | fmaf NEW: ISO C 9x | |
3461 | fmal NEW: ISO C 9x | |
3462 | fmax NEW: ISO C 9x | |
3463 | fmaxf NEW: ISO C 9x | |
3464 | fmaxl NEW: ISO C 9x | |
3465 | fmin NEW: ISO C 9x | |
3466 | fminf NEW: ISO C 9x | |
3467 | fminl NEW: ISO C 9x | |
62595351 | 3468 | fmtmsg NEW: Unix98 |
48244d09 UD |
3469 | fopen64 NEW: LFS |
3470 | fputc_locked REMOVED | |
3471 | fputs_unlocked NEW: GNU ext. | |
3472 | fread_unlocked NEW: GNU ext. | |
3473 | freopen64 NEW: LFS | |
3474 | fseeko NEW: Unix98 | |
3475 | fsetpos64 NEW: LFS | |
3476 | fstatfs64 NEW: LFS | |
3477 | fstatvfs NEW: Unix98 | |
3478 | fstatvfs64 NEW: LFS | |
3479 | ftello NEW: Unix98 | |
3480 | ftello64 NEW: LFS | |
3481 | ftruncate64 NEW: LFS | |
3482 | ftw64 NEW: LFS | |
3483 | fwrite_unlocked NEW: GNU ext. | |
3484 | gai_strerror NEW: IPv6 | |
3485 | gamma_r REMOVED | |
3486 | gammaf_r REMOVED | |
3487 | gammal_r REMOVED | |
3488 | getchar_locked REMOVED | |
3489 | getdate NEW: Unix98 | |
3490 | getdate_err NEW: Unix98 | |
3491 | getdate_r NEW: GNU ext. | |
3492 | getmsg NEW: STREAMS | |
3493 | getnameinfo NEW: IPv6 | |
e980ca92 | 3494 | getnetname NEW: Secure RPC |
48244d09 UD |
3495 | getpmsg NEW: STREAMS |
3496 | getpt NEW: Unix98 PTY | |
3497 | getrlimit64 NEW: LFS | |
62595351 UD |
3498 | getutxent NEW: Unix98 |
3499 | getutxid NEW: Unix98 | |
3500 | getutxline NEW: Unix98 | |
48244d09 UD |
3501 | glob64 NEW: GNU ext. |
3502 | globfree64 NEW: GNU ext. | |
3503 | gnu_get_libc_release NEW: GNU ext. | |
3504 | gnu_get_libc_version NEW: GNU ext. | |
3505 | grantpt NEW: Unix98 PTY | |
e980ca92 | 3506 | host2netname NEW: Secure RPC |
48244d09 UD |
3507 | iconv NEW: iconv |
3508 | iconv_close NEW: iconv | |
3509 | iconv_open NEW: iconv | |
3510 | if_freenameindex NEW: IPv6 | |
3511 | if_indextoname NEW: IPv6 | |
3512 | if_nameindex NEW: IPv6 | |
3513 | if_nametoindex NEW: IPv6 | |
3514 | in6addr_any NEW: IPv6 | |
3515 | in6addr_loopback NEW: IPv6 | |
3516 | inet6_isipv4mapped NEW: IPv6 | |
3517 | isastream NEW: STREAMS | |
3518 | iswblank NEW: GNU ext. | |
e980ca92 UD |
3519 | key_decryptsession NEW: Secure RPC |
3520 | key_decryptsession_pk NEW: Secure RPC | |
3521 | key_encryptsession NEW: Secure RPC | |
3522 | key_encryptsession_pk NEW: Secure RPC | |
3523 | key_gendes NEW: Secure RPC | |
3524 | key_get_conv NEW: Secure RPC | |
3525 | key_secretkey_is_set NEW: Secure RPC | |
3526 | key_setnet NEW: Secure RPC | |
3527 | key_setsecret NEW: Secure RPC | |
48244d09 UD |
3528 | llrint NEW: ISO C 9x |
3529 | llrintf NEW: ISO C 9x | |
3530 | llrintl NEW: ISO C 9x | |
3531 | llround NEW: ISO C 9x | |
3532 | llroundf NEW: ISO C 9x | |
3533 | llroundl NEW: ISO C 9x | |
3534 | log2 NEW: ISO C 9x | |
3535 | log2f NEW: ISO C 9x | |
3536 | log2l NEW: ISO C 9x | |
3537 | lrint NEW: ISO C 9x | |
3538 | lrintf NEW: ISO C 9x | |
3539 | lrintl NEW: ISO C 9x | |
3540 | lround NEW: ISO C 9x | |
3541 | lroundf NEW: ISO C 9x | |
3542 | lroundl NEW: ISO C 9x | |
3543 | lseek64 NEW: LFS | |
3544 | makecontext NEW: Unix98 | |
3545 | mempcpy NEW: GNU ext. | |
3546 | mmap64 NEW: LFS | |
3547 | moncontrol REMOVED | |
3548 | modify_ldt NEW: kernel | |
3549 | nan NEW: ISO C 9x | |
3550 | nanf NEW: ISO C 9x | |
3551 | nanl NEW: ISO C 9x | |
3552 | nearbyint NEW: ISO C 9x | |
3553 | nearbyintf NEW: ISO C 9x | |
3554 | nearbyintl NEW: ISO C 9x | |
e980ca92 UD |
3555 | netname2host NEW: Secure RPC |
3556 | netname2user NEW: Secure RPC | |
42bd0a85 UD |
3557 | nexttoward NEW: ISO C 9x |
3558 | nexttowardf NEW: ISO C 9x | |
3559 | nexttowardl NEW: ISO C 9x | |
48244d09 UD |
3560 | nftw NEW: Unix98 |
3561 | nftw64 NEW: LFS | |
3562 | open64 NEW: LFS | |
e980ca92 | 3563 | passwd2des NEW: Secure RPC |
48244d09 UD |
3564 | pow10 NEW: GNU ext. |
3565 | pow10f NEW: GNU ext. | |
3566 | pow10l NEW: GNU ext. | |
3567 | pread NEW: Unix98 | |
3568 | pread64 NEW: LFS | |
3569 | printf_size NEW: GNU ext. | |
3570 | printf_size_info NEW: GNU ext. | |
3571 | profil_counter REMOVED | |
3572 | pthread_mutexattr_getkind_np REPLACED | |
3573 | pthread_mutexattr_setkind_np REPLACED | |
3574 | ptsname NEW: Unix98 PTY | |
3575 | ptsname_r NEW: Unix98 PTY | |
3576 | putc_locked REMOVED | |
3577 | putchar_locked REMOVED | |
3578 | putgrent NEW: GNU ext. | |
3579 | putmsg NEW: STREAMS | |
3580 | putpmsg NEW: STREAMS | |
62595351 | 3581 | pututxline NEW: Unix98 |
48244d09 UD |
3582 | pwrite NEW: Unix98 |
3583 | pwrite64 NEW: LFS | |
3584 | readdir64 NEW: LFS | |
3585 | readdir64_r NEW: LFS | |
3586 | remquo NEW: ISO C 9x | |
3587 | remquof NEW: ISO C 9x | |
3588 | remquol NEW: ISO C 9x | |
3589 | round NEW: ISO C 9x | |
3590 | roundf NEW: ISO C 9x | |
3591 | roundl NEW: ISO C 9x | |
3592 | rtime NEW: GNU ext. | |
3593 | scalbln NEW: ISO C 9x | |
3594 | scalblnf NEW: ISO C 9x | |
3595 | scalblnl NEW: ISO C 9x | |
3596 | scandir64 NEW: LFS | |
3597 | sendfile NEW: kernel | |
3598 | setcontext NEW: Unix98 | |
3599 | setrlimit64 NEW: LFS | |
62595351 | 3600 | setutxent NEW: Unix98 |
48244d09 UD |
3601 | sighold NEW: Unix98 |
3602 | sigignore NEW: Unix98 | |
3603 | sigqueue NEW: POSIX.1b | |
3604 | sigrelse NEW: Unix98 | |
3605 | sigset NEW: POSIX.1b | |
3606 | sigtimedwait NEW: POSIX.1b | |
3607 | sigwaitinfo NEW: POSIX.1b | |
3608 | sincos NEW: GNU ext. | |
3609 | sincosf NEW: GNU ext. | |
3610 | sincosl NEW: GNU ext. | |
3611 | statfs64 NEW: LFS | |
3612 | statvfs NEW: Unix98 | |
3613 | statvfs64 NEW: LFS | |
3614 | strcasestr NEW: GNU ext. | |
48244d09 UD |
3615 | strtoimax NEW: ISO C 9x |
3616 | strtoumax NEW: ISO C 9x | |
3617 | strverscmp NEW: GNU ext. | |
e980ca92 | 3618 | svcauthdes_stats NEW: Secure RPC |
48244d09 UD |
3619 | svcunix_create NEW: sunrpc etx |
3620 | svcunixfd_create NEW: sunrpc ext | |
3621 | swapcontext NEW: Unix98 | |
3622 | tcgetsid NEW: Unix98 PTY | |
3623 | tdestroy NEW: GNU ext. | |
3624 | tgamma NEW: ISO C 9x | |
3625 | tgammaf NEW: ISO C 9x | |
3626 | tgammal NEW: ISO C 9x | |
3627 | tmpfile64 NEW: LFS | |
3628 | trunc NEW: ISO C 9x | |
3629 | truncate64 NEW: LFS | |
3630 | truncf NEW: ISO C 9x | |
3631 | truncl NEW: ISO C 9x | |
3632 | umount2 NEW: kernel | |
3633 | unlockpt NEW: Unix98 PTY | |
62595351 | 3634 | updwtmpx NEW: Unix98 |
e980ca92 | 3635 | user2netname NEW: Secure RPC |
62595351 | 3636 | utmpxname NEW: Unix98 |
48244d09 | 3637 | versionsort NEW: GNU ext. |
3ef4002b | 3638 | versionsort64 NEW: GNU ext. |
48244d09 UD |
3639 | waitid NEW: Unix98 |
3640 | wcscasecmp NEW: GNU ext. | |
3641 | wcsncasecmp NEW: GNU ext. | |
3642 | wcsnlen NEW: GNU ext. | |
3643 | wcstoimax NEW: ISO C 9x | |
3644 | wcstoll NEW: ISO C 9x | |
3645 | wcstoull NEW: ISO C 9x | |
3646 | wcstoumax NEW: ISO C 9x | |
3647 | wcswcs NEW: Unix98 | |
3648 | wordexp NEW: POSIX.2 | |
3649 | wordfree NEW: POSIX.2 | |
3650 | write_profiling REMOVED | |
e980ca92 UD |
3651 | xdecrypt NEW: Secure RPC |
3652 | xdr_authdes_cred NEW: Secure RPC | |
3653 | xdr_authdes_verf NEW: Secure RPC | |
3654 | xdr_cryptkeyarg NEW: Secure RPC | |
3655 | xdr_cryptkeyarg2 NEW: Secure RPC | |
3656 | xdr_cryptkeyres NEW: Secure RPC | |
3657 | xdr_getcredres NEW: Secure RPC | |
3658 | xdr_key_netstarg NEW: Secure RPC | |
3659 | xdr_key_netstres NEW: Secure RPC | |
3660 | xdr_keybuf NEW: Secure RPC | |
3661 | xdr_keystatus NEW: Secure RPC | |
3662 | xdr_netnamestr NEW: Secure RPC | |
3663 | xdr_sizeof NEW: Secure RPC | |
48244d09 | 3664 | xdr_unixcred NEW: sunrpc ext |
e980ca92 | 3665 | xencrypt NEW: Secure RPC |
48244d09 | 3666 | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ |
1770a20d UD |
3667 | \f |
3668 | Version 2.0.6 | |
3669 | ||
3670 | * more bug fixes | |
3671 | ||
a5a0310d UD |
3672 | \f |
3673 | Version 2.0.5 | |
3674 | ||
3675 | * more bug fixes | |
3676 | ||
3677 | * inet_ntoa is thread-safe | |
3678 | ||
3679 | * updwtmp is moved from libutil to libc | |
3680 | ||
3681 | * rewrite of cbrt function | |
3682 | ||
3683 | * update of timezone data | |
3684 | \f | |
3685 | Version 2.0.4 | |
3686 | ||
3687 | * more bug fixes | |
3688 | \f | |
3689 | Version 2.0.3 | |
3690 | ||
3691 | * more bug fixes | |
c84142e8 | 3692 | \f |
795fbc9a UD |
3693 | Version 2.0.2 |
3694 | ||
3695 | * more bug fixes | |
3696 | ||
3697 | * add atoll function | |
3698 | ||
3699 | * fix complex problems in Berkeley DB code | |
e61abf83 UD |
3700 | |
3701 | * fix math functions | |
795fbc9a UD |
3702 | \f |
3703 | Version 2.0.1 | |
3704 | ||
3705 | * fixed lots of header problems (especially Linux/GNU specific) | |
3706 | ||
3707 | * dynamic loader preserves all registers | |
3708 | ||
3709 | * Roland McGrath provided support for handling of auxiliary objects in | |
3710 | the ELF dynamic loader. | |
3711 | ||
3712 | * support for parallel builds is improved | |
3713 | \f | |
40a4b79f | 3714 | Version 2.0 |
28f540f4 | 3715 | |
d3669add RM |
3716 | * GNU extensions are no longer declared by default. To enable them you |
3717 | must define the macro `_GNU_SOURCE' in your program or compile with | |
3718 | `-D_GNU_SOURCE'. | |
3719 | ||
28f540f4 RM |
3720 | * The library has changed from using GNU ld symbol aliases to using weak |
3721 | symbols where available. The ELF object file format supports weak | |
3722 | symbols; GNU ld also supports weak symbols in the a.out format. (There | |
3723 | is also now support for other GNU ld extensions in ELF. Use the | |
787126fe RM |
3724 | `--with-elf' option to configure to indicate you have ELF, and |
3725 | `--with-gnu-ld' if using GNU ld.) This change resulted in the deletion | |
28f540f4 RM |
3726 | of many files which contained only symbol aliases, reducing the size of |
3727 | the source and the compiled library; many other files were renamed to | |
3728 | less cryptic names previously occupied by the symbol alias files. | |
dcf0671d UD |
3729 | There is a new header file <elf.h> for programs which operate on |
3730 | files in the ELF format. | |
49e522bf RM |
3731 | |
3732 | * Converted to Autoconf version 2, so `configure' has more options. | |
3733 | Run `configure --help' to see the details. | |
3734 | ||
3735 | * The library can now be configured to build profiling, highly-optimized | |
b25c5d66 RM |
3736 | (but undebuggable), and/or shared libraries (ELF with GNU ld only). The |
3737 | `--enable-profile', `--enable-omitfp', and `--enable-shared' options to | |
3738 | `configure' enable building these extra libraries. The shared library is | |
3739 | built by default when using both ELF and GNU ld. When shared libraries | |
3740 | are enabled, the new library `-ldl' is available for arbitrary run-time | |
3741 | loading of shared objects; its interface is defined in <dlfcn.h>. The | |
3742 | new header file <link.h> gives access to the internals of the run-time | |
33a934a3 UD |
3743 | dynamic linker, `ld.so'. The shell script `ldd' is similar to the |
3744 | application of same name on other systems and it provides information | |
3745 | about dynamically linked binaries. | |
49e522bf | 3746 | |
71733723 RM |
3747 | * The C library now provides the run-time support code for profiling |
3748 | executables compiled with `-pg'. Programs can control the profiling code | |
d3669add RM |
3749 | through the interface in <sys/gmon.h>. The `gmon.out' files written by |
3750 | the GNU C library can be read only by GNU `gprof' (from GNU binutils); | |
3751 | the support for this file format was contributed by David Mosberger-Tang. | |
71733723 | 3752 | |
f7eac6eb | 3753 | * The math code has been replaced with a math library based on fdlibm from |
33a934a3 UD |
3754 | Sun, and modified by JT Conklin and Ulrich Drepper with i387 support, by |
3755 | Ian Taylor with `float' functions and by Ulrich Drepper with `long double' | |
3756 | functions. The math functions now reside in a separate library, so | |
3757 | programs using them will need to use `-lm' their linking commands. | |
3758 | ||
3759 | * John C. Bowman contributed optimized ix87 assembler inline functions. | |
f7eac6eb | 3760 | |
5f0e6fc7 RM |
3761 | * Ulrich Drepper has contributed support for an `/etc/nsswitch.conf' |
3762 | mechanism similar to that found in Solaris 2. This is now used for the | |
33a934a3 UD |
3763 | group, passwd, hosts, networks, services, protocols, rpc, ethers, |
3764 | shadow, netgroup, publickey, and alias databases. The `nsswitch.conf' | |
3765 | file controls what services are used for each individual database. This | |
3766 | works by loading shared libraries with names specified in `nsswitch.conf', | |
3767 | so service modules can be changed or added at any time without even | |
3768 | relinking any program. Currently there are the file, db, and NIS based | |
3769 | NSS services available. | |
5f0e6fc7 | 3770 | |
49e522bf RM |
3771 | * The new functions `strtoq' and `strtouq' parse integer values from |
3772 | strings, like `strtol' and `strtoul', but they return `long long int' and | |
3773 | `unsigned long long int' values, respectively (64-bit quantities). | |
3774 | ||
3775 | * The new functions `strtof' and `strtold' parse floating-point values from | |
3776 | strings, like `strtod', but they return `float' and `long double' values, | |
3777 | respectively (on some machines `double' and `long double' are the same). | |
3778 | ||
3779 | * Ulrich Drepper has contributed new implementations of the floating-point | |
3780 | printing and reading code used in the `printf' family of functions and | |
3781 | `strtod', `strtof', and `strtold'. These new functions are perfectly | |
3782 | accurate, and much faster than the old ones. | |
3783 | ||
33a934a3 UD |
3784 | * The implementation of the POSIX locale model was completely rewritten by |
3785 | Ulrich Drepper. This includes the new programs `localedef' and `locale' | |
3786 | to compile the POSIX locale definition. | |
3787 | ||
3788 | * The former dummy implementations of the strcoll and strxfrm function are | |
3789 | now replaced by fully functional code contributed by Ulrich Drepper. The | |
3790 | collation information comes from the POSIX locale definitions. | |
3791 | ||
49e522bf RM |
3792 | * The new header <langinfo.h> defines an interface for accessing |
3793 | various locale-dependent data (using the locale chosen with `setlocale'). | |
3794 | ||
f7eac6eb | 3795 | * Ulrich Drepper has contributed a new suite of functions for operation on |
33a934a3 | 3796 | wide-character and multibyte-character strings, in <wchar.h>; |
b7407d63 | 3797 | and classification and case conversion of wide characters, in <wctype.h>. |
33a934a3 UD |
3798 | These new functions are conforming to the ISO C, Amendement 1 specification. |
3799 | ||
3800 | * There is now a second implementation of the standard I/O library available. | |
3801 | It comes from GNU libg++ as was written by Per Bothner, heavily modified | |
3802 | by Hongjiu Lu and made thread safe by Ulrich Drepper. | |
f7eac6eb | 3803 | |
71733723 | 3804 | * You can now use positional parameter specifications in format strings |
49e522bf RM |
3805 | for the `printf' and `scanf' families of functions. For example, |
3806 | `printf ("Number %2$d, Mr %1$s\n", "Jones", 6);'' prints | |
3807 | ``Number 6, Mr Jones''. This is mainly useful when providing different | |
d365fd2c RM |
3808 | format strings for different languages, whose grammars may dictate |
3809 | different orderings of the values being printed. To support this | |
49e522bf | 3810 | feature, the interface for `register_printf_handler' has changed; see |
d365fd2c | 3811 | the header file <printf.h> for details. |
49e522bf RM |
3812 | |
3813 | * The `printf' and `scanf' families of functions now understand a new | |
3814 | formatting flag for numeric conversions: the ' flag (e.g. %'d or %'f) says | |
3815 | to group numbers as indicated by the locale; for `scanf' and friends, this | |
3816 | says to accept as valid only a number with all the proper grouping | |
3817 | separators in the right places. In the default "C" locale, numbers are | |
3818 | not grouped; but locales for specific countries will define the usual | |
3819 | conventions (i.e. separate thousands with `,' in the US locale). | |
28f540f4 RM |
3820 | |
3821 | * The pgrp functions have been regularized, slightly incompatibly but much | |
3822 | less confusingly. The core functions are now `getpgid' and `setpgid', | |
3823 | which take arguments for the PID to operate on; the POSIX.1 `getpgrp' (no | |
3824 | argument) and BSD `setpgrp' (identical to `setpgid') functions are | |
3825 | provided for compatibility. There is no longer an incompatible `getpgrp' | |
3826 | with an argument declared under _BSD_SOURCE; no BSD code uses it. | |
3827 | ||
3828 | * The new header file <fts.h> and suite of functions simplify programs that | |
3829 | operate on directory trees. This code comes from 4.4 BSD. | |
3830 | ||
33a934a3 UD |
3831 | * The resolver code has been updated from the BIND 4.9.5-P1 release. |
3832 | Parts of the code were heavily modified by Ulrich Drepper to fit in the | |
3833 | NSS scheme used in glibc. | |
28f540f4 | 3834 | |
28f540f4 RM |
3835 | * There is a new malloc debugging hook `__memalign_hook'. |
3836 | ||
3837 | * There are new typedefs `ushort' for `unsigned short int' and `uint' for | |
3838 | `unsigned int' in <sys/types.h>. These are for compatibility only and | |
3839 | their use is discouraged. | |
3840 | ||
3841 | * The `-lmcheck' library to enable standard malloc debugging hooks is now | |
3842 | done differently, so that it works even without GNU ld. | |
787126fe | 3843 | |
22a1292a RM |
3844 | * New function `euidaccess' checks allowed access to a file like `access', |
3845 | but using the effective IDs instead of the real IDs. | |
49e522bf RM |
3846 | |
3847 | * The time zone data files have been updated for the latest and greatest | |
3848 | local time conventions of the countries of the world. | |
3849 | ||
3850 | * The new function `dirfd' extracts the file descriptor used by a DIR stream; | |
3851 | see <dirent.h>. | |
3852 | ||
3853 | * The new functions `ecvt', `fcvt', and `gcvt' provide an obsolete interface | |
3854 | for formatting floating-point numbers. They are provided only for | |
33a934a3 UD |
3855 | compatibility; new programs should use `sprintf' instead. There are |
3856 | also equivalent function for the `long double' floating-point type and | |
3857 | all functions also exist in a reentrant form. | |
342414a6 RM |
3858 | |
3859 | * The new auxiliary library `-lutil' from 4.4 BSD contains various | |
3860 | functions for maintaining the login-record files (primarily of use to | |
3861 | system programs such as `login'), and convenient functions for | |
3862 | allocating and initializing a pseudo-terminal (pty) device. | |
c709e372 RM |
3863 | |
3864 | * Ulrich Drepper has contributed new support for System V style | |
3865 | shared memory and IPC on systems that support it. | |
3866 | ||
3867 | * Ulrich Drepper has contributed several miscellaneous new functions found | |
3868 | in System V: The `hsearch' family of functions provide an effective | |
3869 | implementation of hash tables; `a64l' and `l64a' provide a very simple | |
3870 | binary to ASCII mapping; `drand48' and friends provide a 48-bit random | |
3871 | number generator. | |
3872 | ||
3873 | * Ulrich Drepper has contributed new reentrant counterparts for the | |
3874 | `random' and `hsearch' families of functions; `random_r', `hsearch_r', etc. | |
3875 | ||
3876 | * Ulrich Drepper has contributed new, highly-optimized versions of several | |
3877 | string functions for the i486/Pentium family of processors. | |
3878 | ||
71733723 | 3879 | * Ulrich Drepper has updated the Linux-specific code, based largely |
c709e372 | 3880 | on work done in Hongjiu Lu's version of GNU libc for Linux. |
33a934a3 UD |
3881 | The GNU library now supports Linux versions 2.0.10 and later, |
3882 | using the ELF object file format (i[3456]86-*-linux). | |
c709e372 | 3883 | |
d3669add RM |
3884 | * Andreas Schwab has ported the C library to Linux/m68k (m68k-*-linux). |
3885 | ||
33a934a3 UD |
3886 | * David Mosberger-Tang and Richard Henderson have ported the C library |
3887 | to Linux/Alpha (alpha-*-linux). Richard Henderson contributed the | |
3888 | dynamic linking support for ELF/Alpha. | |
3889 | ||
3890 | * Richard Henderson contributed several Alpha optimized assembler function | |
3891 | for arithmetic and string handling. | |
d3669add | 3892 | |
c709e372 | 3893 | * Ulrich Drepper has contributed a new set of message catalog functions to |
40a4b79f RM |
3894 | support multiple languages using the <libintl.h> interface, for use with |
3895 | his new package GNU gettext. Translation volunteers have contributed | |
3896 | catalogs of the library's messages in Spanish, German, and Korean. | |
3897 | ||
3898 | * For compatibility with XPG4, Ulrich Drepper has contributed the `gencat' | |
3899 | program and the `catgets' function for reading the catalog files it | |
3900 | creates. (The <libintl.h> interface is preferred; we include the | |
3901 | <nl_types.h> interface using `catgets' only for source compatibility with | |
3902 | programs already written to use it.) | |
71733723 RM |
3903 | |
3904 | * New header file <values.h> gives SVID-compatible names for <limits.h> | |
3905 | constants. | |
3906 | ||
3907 | * Various new macros, declarations, and small header files for compatibility | |
3908 | with 4.4 BSD. | |
3909 | ||
3910 | * New function `group_member' is a convenient way to check if a process has | |
3911 | a given effective group ID. | |
3912 | ||
3913 | * When using GCC 2.7 and later, the socket functions are now declared in a | |
3914 | special way so that passing an argument of type `struct sockaddr_in *', | |
3915 | `struct sockaddr_ns *', or `struct sockaddr_un *' instead of the generic | |
3916 | `struct sockaddr *' type, does not generate a type-clash warning. | |
3917 | ||
3918 | * New function `error' declared in header file <error.h> is a convenient | |
6d52618b | 3919 | function for printing error messages and optionally exiting; this is the |
71733723 RM |
3920 | canonical function used in GNU programs. The new functions `err', `warn', |
3921 | and friends in header file <err.h> are the canonical 4.4 BSD interface for | |
3922 | doing the same thing. | |
3923 | ||
3924 | * The <glob.h> interface has several new flags from 4.4 BSD that extend the | |
3925 | POSIX.2 `glob' function to do ~ and {...} expansion. | |
3926 | ||
3927 | * New function `unsetenv' complements `setenv' for compatibility with 4.4 BSD. | |
33a934a3 | 3928 | `clearenv' which is used in POSIX.9 is also available. |
71733723 RM |
3929 | |
3930 | * New function `getsid' returns session ID number on systems that support it. | |
3931 | ||
f7eac6eb RM |
3932 | * We have incorporated the 4.4 BSD `db' library (version 1.85). New header |
3933 | files <db.h> and <mpool.h> provide a rich set of functions for several | |
3934 | types of simple databases stored in memory and in files, and <ndbm.h> is | |
6d52618b | 3935 | an old `ndbm'-compatible interface using the `db' functions. Link with |
999493cb | 3936 | `-ldb' to get these functions. |
f7eac6eb RM |
3937 | |
3938 | * New macro `strdupa' copies a string like `strdup', but uses local stack | |
3939 | space from `alloca' instead of dynamic heap space from `malloc'. | |
52e9a9d1 RM |
3940 | |
3941 | * New function `strnlen' is like `strlen' but searches only a given maximum | |
33a934a3 UD |
3942 | number of characters for the null terminator. `stpncpy', `strndup' and |
3943 | `strndupa' are similar variants for the `stpcpy', `strdup' and `strdupa' | |
3944 | function. | |
40a4b79f RM |
3945 | |
3946 | * New function `statfs' in header <sys/statfs.h>. | |
3947 | ||
3948 | * The new <argz.h> and <envz.h> interfaces contributed by Miles Bader | |
3949 | provide convenient functions for operating on blocks of null-terminated | |
3950 | strings. | |
3951 | ||
3952 | * A new suite of functions in <utmp.h> handle all the details of reading | |
3953 | and writing the utmp file. | |
33a934a3 UD |
3954 | |
3955 | * An implementation of the NIS/YP(tm) based NSS service was contributed by | |
3956 | Thorsten Kukuk. | |
3957 | ||
3958 | * Paul Eggert and Ulrich Drepper modified the `strftime' function to be | |
3959 | completely POSIX compliant and also implemented the extended functionality | |
3960 | to handle alternate digit representation and alternate era date formats. | |
3961 | ||
3962 | * Ulrich Drepper provided an implementation of the `strptime' function | |
3963 | defined in XPG4.2 which transforms a string into a `struct tm' value. | |
3964 | ||
3965 | * Paul Eggert provided the tzselect shell script as part of the timezone | |
3966 | code. The shell script makes it easy to select the correct timezone | |
3967 | specification. | |
3968 | ||
3969 | * The implementation of the malloc family of functions is completely replaced | |
3970 | by a new implementation by Doug Lea with many improvements by Wolfram Gloger. | |
3971 | The implementation uses the mmap function (if available) and it is | |
3972 | optimized for the use in multi threaded programs. | |
3973 | ||
3974 | * Ulrich Drepper contributed a MD5 "encryption" for the crypt family of | |
3975 | functions. This new functionality is usable by specifying a special | |
3976 | salt string and it is compatible with implementation on *BSD systems. | |
3977 | ||
3978 | * Lots of functions from the XPG4.2 standard were added by Ulrich Drepper: | |
3979 | `getsubopt' to handle second level command line options, `bsd_signal' | |
3980 | to access BSD style `signal' functionality, the obsolete `regexp' style | |
3981 | expression matcher. | |
3982 | ||
3983 | * the `lchown' function is available on system which support this | |
3984 | functionality. | |
3985 | ||
3986 | * The implementation of the shadow password handling function was contributed | |
3987 | by Ulrich Drepper. | |
3988 | ||
3989 | * David Mosberger-Tang changed the SunRPC implementation to be 64bit safe. | |
3990 | ||
3991 | * POSIX.1g support was added. The <sys/select.h> header is available, | |
3992 | `isfdtype' and `pselect' are implemented. Craig Metz contributed an | |
3993 | implementation of `getaddrinfo'. | |
28f540f4 RM |
3994 | \f |
3995 | Version 1.09 | |
3996 | ||
3997 | * For cross-compilation you should now set `BUILD_CC' instead of `HOST_CC'. | |
3998 | ||
3999 | * New header file <fstab.h> and new functions `getfsspec', `getfsent' and | |
4000 | friends, for parsing /etc/fstab. This code comes from 4.4 BSD. | |
4001 | ||
4002 | * The new function `daemon' from 4.4 BSD is useful for server programs that | |
4003 | want to put themselves in the background. | |
4004 | ||
4005 | * Joel Sherrill has contributed support for several standalone boards that | |
4006 | run without an operating system. | |
4007 | ||
4008 | * `printf', `scanf' and friends now accept a `q' type modifier for long | |
4009 | long int as well as `ll'. Formats using these might be `%qu' or `%lld'. | |
4010 | ||
4011 | * All of the code taken from BSD (notably most of the math and networking | |
4012 | routines) has been updated from the BSD 4.4-Lite release. | |
4013 | ||
4014 | * The resolver code has been updated from the BIND-4.9.3-BETA9 release. | |
4015 | ||
4016 | * The new functions `getdomainname' and `setdomainname' fetch or change the | |
4017 | YP/NIS domain name. These are system calls which exist on systems which | |
4018 | have YP (aka NIS). | |
4019 | ||
4020 | * The time zone data files have been updated for the latest international | |
4021 | conventions. | |
4022 | ||
4023 | * The SunRPC programs `portmap' and `rpcinfo' are now installed in | |
4024 | $(sbindir) (usually /usr/local/sbin) instead of $(bindir). | |
4025 | \f | |
4026 | Version 1.08 | |
4027 | ||
4028 | * The C library now includes support for Sun RPC, from Sun's free | |
4029 | RPCSRC-4.0 distribution. The `portmap', `rpcinfo', and `rpcgen' programs | |
4030 | are included. (There is still no support for YP.) | |
4031 | ||
4032 | * Tom Quinn has contributed a port of the C library to SGI machines running | |
4033 | Irix 4 (mips-sgi-irix4). | |
4034 | ||
4035 | * The new `lockf' function is a simplified interface to the locking | |
4036 | facilities of `fcntl', included for compatibility. | |
4037 | ||
4038 | * New time functions `timegm', `timelocal', and `dysize' for compatibility. | |
4039 | ||
4040 | * New header file <sys/timeb.h> and new function `ftime' for compatibility. | |
4041 | ||
4042 | * New header files <poll.h> and <sys/poll.h> and new function `poll' for | |
4043 | compatibility. | |
4044 | ||
4045 | * The error message printed by `assert' for a failed assertion now includes | |
4046 | the name of the program (if using GNU ld) and the name of the calling | |
4047 | function (with versions of GCC that support this). | |
4048 | ||
4049 | * The `psignal' function is now declared in <signal.h>, not <stdio.h>. | |
4050 | ||
4051 | * The library now includes the <sys/mman.h> header file and memory | |
4052 | management functions `mmap', `munmap', `mprotect', `msync', and | |
4053 | `madvise', on systems that support those facilities. | |
4054 | ||
4055 | * The interface for `mcheck' has changed slightly: the function called to | |
4056 | abort the program when an allocation inconsistency is detected now takes | |
4057 | an argument that indicates the type of failure. The new function | |
4058 | `mprobe' lets you request a consistency check for a particular block at | |
4059 | any time (checks are normally done only when you call `free' or `realloc' | |
4060 | on a block). | |
4061 | ||
4062 | * It is now possible to easily cross-compile the C library, building on one | |
4063 | system a library to run on another machine and/or operating system. All | |
4064 | you need to do is set the variable `HOST_CC' in `configparms' to the | |
4065 | native compiler for programs to run on the machine you are building on (a | |
4066 | few generator programs are used on Unix systems); set `CC' to the | |
4067 | cross-compiler. | |
4068 | ||
4069 | * The new function `fexecve' (only implemented on the GNU system) executes | |
4070 | a program file given a file descriptor already open on the file. | |
4071 | \f | |
4072 | Version 1.07 | |
4073 | ||
4074 | * Brendan Kehoe has contributed most of a port to the DEC Alpha | |
4075 | running OSF/1 (alpha-dec-osf1). He says it is 75% complete. | |
4076 | ||
4077 | * You can set the variable `libprefix' in `configparms' to specify a prefix | |
4078 | to be prepended to installed library files; this makes it easy to install | |
4079 | the GNU C library to be linked as `-lgnuc' or whatever. | |
4080 | ||
4081 | * The new `stpncpy' is a cross between `stpcpy' and `strncpy': It | |
4082 | copies a limited number of characters from a string, and returns the | |
4083 | address of the last character written. | |
4084 | ||
4085 | * You no longer need to check for whether the installed `stddef.h' is | |
4086 | compatible with the GNU C library. configure now checks for you. | |
4087 | ||
4088 | * You can now define a per-stream `fileno' function to convert the | |
4089 | stream's cookie into an integral file descriptor. | |
4090 | ||
4091 | * ``malloc (0)'' no longer returns a null pointer. Instead, it | |
4092 | allocates zero bytes of storage, and returns a unique pointer which | |
4093 | you can pass to `realloc' or `free'. The behavior is undefined if | |
4094 | you dereference this pointer. | |
4095 | ||
4096 | * The C library now runs on Sony NEWS m68k machines running either | |
4097 | NewsOS 3 or NewsOS 4. | |
4098 | ||
4099 | * The new `syscall' function is a system-dependent primitive function | |
4100 | for invoking system calls. It has the canonical behavior on Unix | |
4101 | systems, including unreliable return values for some calls (such as | |
4102 | `pipe', `fork' and `getppid'). | |
4103 | ||
4104 | * The error code `EWOULDBLOCK' is now obsolete; it is always defined | |
4105 | to `EAGAIN', which is the preferred name. On systems whose kernels | |
4106 | use two distinct codes, the C library now translates EWOULDBLOCK to | |
4107 | EAGAIN in every system call function. | |
4108 | \f | |
4109 | Version 1.06 | |
4110 | ||
4111 | * The GNU C Library Reference Manual is now distributed with the library. | |
4112 | `make dvi' will produce a DVI file of the printed manual. | |
4113 | `make info' will produce Info files that you can read on line using C-h i | |
4114 | in Emacs or the `info' program. | |
ea278354 | 4115 | Please send comments on the manual to bug-glibc-manual@gnu.org. |
28f540f4 RM |
4116 | |
4117 | * The library now supports SVR4 on i386s (i386-unknown-sysv4). | |
4118 | ||
4119 | * Brendan Kehoe has contributed a port to Sun SPARCs running Solaris 2. | |
4120 | ||
4121 | * Jason Merrill has contributed a port to the Sequent Symmetry running | |
4122 | Dynix version 3 (i386-sequent-dynix). | |
4123 | ||
4124 | * The library has been ported to i386s running SCO 3.2.4 (also known as SCO | |
4125 | ODT 2.0; i386-unknown-sco3.2.4) or SCO 3.2 (i386-unknown-sco3.2). | |
4126 | ||
4127 | * New function `memory_warnings' lets you arrange to get warnings when | |
4128 | malloc is running out of memory to allocate, like Emacs gives you. | |
4129 | ||
4130 | * The C library now contains the relocating allocator used in Emacs 19 for | |
4131 | its editing buffers. This allocator (ralloc) minimizes allocation | |
4132 | overhead and fragmentation by moving allocated regions around whenever it | |
4133 | needs to. You always refer to a ralloc'd region with a "handle" (a | |
4134 | pointer to a pointer--an object of type `void **'). | |
4135 | ||
4136 | * There is a new `printf' format: `%m' gives you the string corresponding | |
4137 | to the error code in `errno'. | |
4138 | ||
4139 | * In `scanf' formats, you can now use `%as' or `%a[' to do the normal `%s' | |
4140 | or `%[' conversion, but instead of filling in a fixed-sized buffer you | |
4141 | pass, the `a' modifier says to fill in a `char **' you pass with a | |
4142 | malloc'd string. | |
4143 | ||
4144 | * The `fnmatch' function supports the new flag bits `FNM_LEADING_DIR' and | |
4145 | `FNM_CASEFOLD'. `FNM_LEADING_DIR' lets a pattern like `foo*' match a | |
4146 | name like `foo/bar'. `FNM_CASEFOLD' says to ignore case in matching. | |
4147 | ||
4148 | * `mkstemp' is a traditional Unix function to atomically create and open a | |
4149 | uniquely-named temporary file. | |
4150 | \f | |
4151 | Version 1.05 | |
4152 | ||
4153 | * The standard location for the file that says what the local timezone is | |
4154 | has changed again. It is now `/usr/local/etc/localtime' (or more | |
4155 | precisely, `${prefix}/etc/localtime') rather than `/etc/localtime'. | |
4156 | ||
4157 | * The distribution no longer contains any files with names longer than 14 | |
4158 | characters. | |
4159 | ||
4160 | * `struct ttyent' has two new flag bits: TTY_TRUSTED and TTY_CONSOLE. | |
4161 | These are set by the new `trusted' and `console' keywords in `/etc/ttys'. | |
4162 | ||
4163 | * New functions `ttyslot' and `syslog' from 4.4 BSD. | |
4164 | \f | |
4165 | Version 1.04 | |
4166 | ||
4167 | * The configuration process has changed quite a bit. The `configure' | |
4168 | script is now used just like the configuration scripts for other GNU | |
4169 | packages. The `sysdeps' directory hierarchy is much rearranged. | |
4170 | The file `INSTALL' explains the new scheme in detail. | |
4171 | ||
4172 | * The header files no longer need to be processed into ANSI C and | |
4173 | traditional C versions. There is just one set of files to install, and | |
4174 | it will work with ANSI or old C compilers (including `gcc -traditional'). | |
4175 | ||
4176 | * Brendan Kehoe and Ian Lance Taylor have ported the library to the | |
4177 | MIPS DECStation running Ultrix 4. | |
4178 | ||
4179 | * The Sun 4 startup code (crt0) can now properly load SunOS 4 shared libraries. | |
4180 | Tom Quinn contributed the initial code. The GNU C library can NOT yet be | |
4181 | made itself into a shared library. | |
4182 | ||
4183 | * Yet further improved support for the i386, running 4.3 BSD-like systems | |
4184 | (such as Mach 3 with the Unix single-server), or System V. | |
4185 | ||
4186 | * New function `strncasecmp' to do case-insensitive string comparison | |
4187 | with limited length. | |
4188 | ||
4189 | * New function `strsep' is a reentrant alternative to `strtok'. | |
4190 | ||
4191 | * New functions `scandir' and `alphasort' for searching directories. | |
4192 | ||
4193 | * New function `setenv' is a better interface to `putenv'. | |
4194 | ||
4195 | * Ian Lance Taylor has contributed an implementation of the SVID `ftw' | |
4196 | function for traversing a directory tree. | |
4197 | ||
4198 | * The GNU obstack package is now also part of the C library. | |
4199 | The new function `open_obstack_stream' creates a stdio stream that | |
4200 | writes onto an obstack; `obstack_printf' and `obstack_vprintf' do | |
4201 | formatted output directly to an obstack. | |
4202 | ||
4203 | * Miscellaneous new functions: reboot, nice, sigaltstack (4.4 BSD only), | |
4204 | cfmakeraw, getusershell, getpass, swab, getttyent, seteuid, setegid. | |
4205 | ||
4206 | * `FNM_FILE_NAME' is another name for `FNM_PATHNAME', used with `fnmatch'. | |
4207 | ||
4208 | * The new functions `strfry' and `memfrob' do mysterious and wonderful | |
4209 | things to your strings. | |
4210 | ||
4211 | * There are some new test programs: test-fseek, testmb, and testrand. | |
4212 | ||
4213 | * Some work has been done to begin porting the library to 4.4 BSD and Linux. | |
4214 | These ports are not finished, but are a good starting place for really | |
4215 | supporting those systems. | |
4216 | ||
4217 | * `/etc/localtime' is now the standard location for the file that says what | |
4218 | the local timezone is, rather than `/usr/local/lib/zoneinfo/localtime'. | |
4219 | This follows the general principle that `/etc' is the place for all local | |
4220 | configuration files. | |
4221 | ||
4222 | * The C library header files now use `extern "C"' when used by the C++ | |
4223 | compiler, so the C library should now work with C++ code. | |
4224 | ||
4225 | * The header file <bstring.h> is gone. <string.h> now declares bcopy, | |
56ddf355 UD |
4226 | bcmp, bzero, and ffs. (Update: nowadays these functions are declared |
4227 | in <strings.h>.) | |
28f540f4 RM |
4228 | |
4229 | * Mike Haertel (of GNU e?grep and malloc fame) has written a new sorting | |
4230 | function which uses the `merge sort' algorithm, and is said to be | |
4231 | significantly faster than the old GNU `qsort' function. Merge sort is | |
4232 | now the standard `qsort' function. The new algorithm can require a lot | |
4233 | of temporary storage; so, the old sorting function is called when the | |
4234 | required storage is not available. | |
4235 | ||
4236 | * The C library now includes Michael Glad's Ultra Fast Crypt, which | |
4237 | provides the Unix `crypt' function, plus some other entry points. | |
28f540f4 RM |
4238 | |
4239 | * The code and header files taken from 4.4 BSD have been updated with the | |
4240 | latest files released from Berkeley. | |
4241 | \f | |
4242 | ---------------------------------------------------------------------- | |
4243 | Copyright information: | |
4244 | ||
58b587c1 | 4245 | Copyright (C) 1992-2017 Free Software Foundation, Inc. |
28f540f4 RM |
4246 | |
4247 | Permission is granted to anyone to make or distribute verbatim copies | |
4248 | of this document as received, in any medium, provided that the | |
4249 | copyright notice and this permission notice are preserved, | |
4250 | thus giving the recipient permission to redistribute in turn. | |
4251 | ||
4252 | Permission is granted to distribute modified versions | |
4253 | of this document, or of portions of it, | |
4254 | under the above conditions, provided also that they | |
4255 | carry prominent notices stating who last changed them. | |
4256 | \f | |
4257 | Local variables: | |
4258 | version-control: never | |
1086d70d | 4259 | fill-column: 76 |
557a9213 | 4260 | End: |