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1 GNU C Library NEWS -- history of user-visible changes. 2006-03-01
2 Copyright (C) 1992-2002,2003,2004,2005,2006 Free Software Foundation, Inc.
3 See the end for copying conditions.
5 Please send GNU C library bug reports via <http://sources.redhat.com/bugzilla/>
6 using `glibc' in the "product" field.
7 \f
8 Version 2.4
10 * More overflow detection functions.
12 * New iconv converters for IBM1025, IBM1122, IBM1137, IBM1153,
13 IBM1154, IBM1155, IBM1156, IBM1157, and IBM1158 contributed by Jiro Sekiba.
15 More converters for IBM803, IBM901, IBM902, IBM921, IBM1008, IBM1097,
16 IBM1112, IBM1123, IBM1130, IBM1140, IBM1141, IBM1142, IBM1143, IBM1144,
17 IBM1145, IBM1146, IBM1147, IBM1148, IBM1149, IBM1166, IBM1167, IBM4517,
18 IBM4899, IBM4909, IBM4971, IBM5347, IBM9030, IBM9066, IBM9448, IBM12712,
19 IBM16804, IBM1364, IBM1371, IBM1388, IBM1390, and IBM1399 contributed
20 by Masahide Washizawa.
22 * It is now possible to install audit libraries for the dynamic linker using
23 LD_AUDIT. Implemented by Ulrich Drepper.
25 * The LinuxThreads add-on, providing pthreads on Linux 2.4 kernels, is no
26 longer supported. The new NPTL implementation requires Linux 2.6 kernels.
27 For a libc and libpthread that works well on Linux 2.4 kernels, we
28 recommend using the stable 2.3 branch.
30 * The new function open_wmemstream acts like open_memstream,
31 but uses a wchar_t wide character buffer.
33 * The new function ppoll is an improved version of poll, similar to pselect.
35 * New interfaces: fdopendir, openat, fstatat, fchmodat, fchownat,
36 futimesat, faccessat, mkdirat, mkfifoat, mknodat,
37 renameat, unlinkat, linkat, symlinkat, readlinkat.
39 * New Linux kernel system calls: unshare,
40 inotify_init, inotify_add_watch, inotify_rm_watch.
42 * The euidaccess function is now also known by the alias eaccess,
43 for compatibility with some other systems.
45 * Timezone data updated to 2006b version.
46 \f
47 Version 2.3.6
49 * The following bugs are resolved with this release:
51 38, 253, 549, 622, 653, 721, 758, 851, 877, 915, 934, 955, 961,
52 1016, 1037, 1076, 1079, 1080, 1081, 1082, 1083, 1084, 1085, 1086,
53 1087, 1088, 1090, 1091, 1092, 1093, 1094, 1095, 1096, 1097, 1098,
54 1099, 1100, 1101, 1102, 1103, 1104, 1105, 1106, 1107, 1108, 1109,
55 1110, 1111, 1112, 1113, 1125, 1137, 1138, 1249, 1250, 1251, 1252,
56 1253, 1254, 1350, 1358, 1394, 1438, 1498, 1534
58 Visit <http://sources.redhat.com/bugzilla/> for the details of each bug.
60 * As of this release, GCC 4 can be used to compile the C Library.
62 * Timezone data updated to 2005m version.
63 \f
64 Version 2.3.5
66 * The following bugs are resolved with this release:
68 284, 592, 602, 626, 633, 640, 650, 661, 671, 681, 693, 700, 710, 719,
69 722, 723, 725, 726, 727, 728, 729, 730, 731, 732, 733, 734, 735, 736,
70 737, 738, 739, 740, 741, 742, 743, 744, 745, 765, 767, 768, 769, 776,
71 777, 787, 821, 822, 823, 825
73 Visit <http://sources.redhat.com/bugzilla/> for the details of each bug.
74 \f
75 Version 2.3.4
77 * Support for RFC 3678. Real implementations exist only for Linux so far.
78 Implemented by Ulrich Drepper.
80 * nscd can now cache entries persistently. Expiring entries are reloaded.
81 For speedups the cache can be shared in memory with client processes.
82 Implemented by Ulrich Drepper.
84 * nscd can now perform SELinux checks.
85 Implemented by Matthew Rickard <mjricka@epoch.ncsc.mil>.
87 * getaddrinfo queries are now cached. Canonical name lookup is performed
88 efficiently.
89 Implemented by Ulrich Drepper.
91 * The nothrow function attribute is used when headers are used by gcc when
92 compiling C code. This can avoid significant amounts of exception
93 handling data.
95 * The malloc functions perform more error checking and are stricter when
96 it comes to reacting on errors. The default action is to terminate
97 the process after showing an error message. Implemented by Ulrich Drepper.
99 * Reverse lookups of IPv6 addresses does not use bit string or .ip6.int
100 lookups anymore unless explicitly requested. Implemented by Ulrich Drepper.
102 * Namespaces in ld.so are implemented. DSOs can be loaded in separate
103 namespaces using the new function dlmopen(). This feature is of course,
104 like most other dynamic loading functionality, not available in statically
105 linked applications. Implemented by Ulrich Drepper.
107 * Low-overhead boundary checking variants of string and some stdio functions
108 were added. These are to be used in conjunction with a gcc patch by
109 Jakub Jelinek which adds calls to these functions if possible.
110 Implemented by Jakub Jelinek and Ulrich Drepper.
112 * Old code for several operating systems and machine architectures that
113 have not been in working condition in a long time have been removed from
114 the main source tree maintained by the GNU C Library's maintainers.
115 These files are now reside in the separate `ports' source module
116 that is usable as an add-on when building the library.
117 \f
118 Version 2.3.3
120 * New functions `dladdr1' and `dlinfo' in <dlfcn.h> provide more ways to
121 interrogate the dynamic linker, compatible with the Solaris interface.
123 * ELF thread-local storage support (TLS) now works on PowerPC and PowerPC64;
124 implemented by Paul Mackerras, Steven Munroe, and Roland McGrath.
126 * getifaddrs now uses the netlink interface on Linux to get its information.
127 Implemented by Thorsten Kukuk.
129 * getaddrinfo now implements AI_V4MAPPED, AI_ALL, and AI_ADDRCONF.
130 Implemented by Ulrich Drepper.
132 * support for non-executable stacks on x86 has been added. Changes mostly
133 by Roland McGrath.
135 * regex is now much faster for multibyte locales. Changes by Jakub Jelinek
136 and Ulrich Drepper.
138 * getaddrinfo now performs destination address selection according to
139 RFC 3484.
140 \f
141 Version 2.3.2
143 * Thread-safe interfaces for many functions that access locale data
144 were added in version 2.3, but these features were omitted from NEWS.
145 Many functions have variants with an `_l' suffix that take a `locale_t'
146 object as a parameter rather than consulting the current locale.
147 The new functions `newlocale', `duplocale', and `freelocale' in <locale.h>
148 create and maintain `locale_t' objects. Additionally, the new function
149 `uselocale' sets "the current locale" (as used by functions not so
150 parameterized) set for an individual thread. These features were added
151 in version 2.3, implemented by Ulrich Drepper and Roland McGrath.
153 * The functions getresuid, getresgid, setresuid, and setresgid, which
154 have long been available on Linux, are now declared in <unistd.h>
155 and are now also available on the Hurd.
157 * ELF thread-local storage support (TLS) now works on x86-64.
159 * The new dynamic string token $LIB is expanded in shared library names.
160 This normally expands to lib, but on some 64-bit platforms to lib64 instead.
162 * Aldy Hernandez contributed complete software floating point support for
163 PowerPC machines with no FPU.
165 * fexecve is implemented on Linux.
167 * The `btowc' function should work at least twice as fast due to
168 specialized callbacks in the iconv modules. Implemented by Bruno Haible.
170 * With approriate thread add-ons cancelable functions are now implemented
171 in libc.so as well. No need to call the function in libpthread. This
172 change allowed to finally disable the incorrect and expensive handling
173 of weak definition in ld.so.
175 * Yet more PLT entries in libc.so have been removed. We finally arrived
176 at the bare minimum. Startup times improved appropriately.
178 * Support for the new Linux/x86 system call interface was added. The
179 AT_SYSINFO auxiliary vector entry is recognized and handled.
180 \f
181 Version 2.3
183 * Masahide Washizawa contributed iconv modules for IBM1163 and IBM1164
184 charsets.
186 * iconv (the program and the interface) now accepts empty names (excluding
187 options like //TRANSLIT) to mean "use charset of current locale".
189 * localedef can now transliterate characters in strings which are not in
190 the provided charmap. The information from the input locale is used.
192 * Prelinking support was added for ELF targets. This requires additional
193 tools and recent versions of the GNU binutils. Contributed by Jakub Jelinek.
195 * Read-only stdio streams now use mmap to speed up operation by eliminating
196 copying and buffer underflows. To use add 'm' to the mode string of
197 the fopen/fdopen/freopen call. Implemented by Ulrich Drepper.
199 * The malloc functions were completely rewritten by Wolfram Gloger based
200 on Doug Lea's malloc-2.7.0.c.
202 * Isamu Hasegawa contributed a completely new and POSIX-conformant
203 implementation of regex.
205 * Bruno Haible upgraded the iconv and locale implementation to support
206 Unicode 3.2.
208 * Contents of the LC_* and LANG environment variables in the CEN style are
209 not recognized anymore. It never was used. Change by Ulrich Drepper.
211 * The runtime (ld.so, libc, libpthread for Linux) now can handle the ELF
212 thread-local storage (TLS) ABI on some platforms.
213 Changes by Ulrich Drepper. SH support by Kaz Kojima.
215 * Bruno Haible contributed iconv converters for ISO-2022-JP-3, SHIFT JIS-X0213,
216 EUC-JISX0213, and TSCII.
218 * New header <ifaddrs.h> with functions `getifaddrs' and `freeifaddrs':
219 BSD-compatible interface for getting all network interface addresses.
220 Implementation for IPv4 by Roland McGrath.
222 * Loading of locale data is faster due to the introduction of a locale
223 archive. Implemented by Roland McGrath and Ulrich Drepper.
225 * Startup times are significantly reduced by not using exported functions
226 inside the library itself. Changes by Jakub Jelinek, Roland McGrath,
227 and Ulrich Drepper.
229 * Steven Munroe contributed a port to PowerPC64/Linux.
230 \f
231 Version 2.2.6
233 * The Hurd now uses the GNU libio implementation of stdio rather than the
234 old GNU stdio implementation, and uses a new ABI (libc.so.0.3).
236 * The Hurd on x86 now has the `ioperm' function and <sys/io.h> header file
237 with the same behavior as the Linux system call of the same name.
238 \f
239 Version 2.2.5
241 * Stephen Moshier implemented log2, log10, powl and cbrtl for the
242 128-bit long double format.
244 * Masahide Washizawa contributed iconv modules for IBM1132, IBM1133, IBM1160,
245 IBM1161, and IBM1162 charsets.
247 * Andreas Jaeger contributed a port to x86-64/Linux.
249 * Peter Bruin contributed a port to PowerPC/Hurd.
251 * libc functions using I/O streams now can handle wide-oriented streams
252 as well.
254 * optimizations in the dynamic linker. Binaries created by recent binutils
255 versions start up quicker due to reduced time spent on relocations.
257 * Support for use of gcc3 added by Jakub Jelinek and HJ Lu.
258 \f
259 Version 2.2.4
261 * Stephen Moshier implemented cosh, expm1, log1p, acos, sinh, tanh,
262 asinh, atanh, j0 for the 128-bit long double format.
264 * Bruno Haible updated all the code handling Unicode in some form to
265 support Unicode 3.1.
267 * Speed of regex for single-byte locales is back to previous levels.
268 Patch by Isamu Hasegawa.
270 * Alpha, SPARC, and IA-64 now also using floating stacks.
272 * Startup time of internationalized applications greatly improved through
273 iconv cache. Use iconvconfig to generate the cache file.
274 Contributed by Ulrich Drepper.
276 * The IA-64 specific part of ld.so was rewritten to eliminate some pretty
277 severe performance problems. Patch by David Mosberger.
279 * The Hurd port got a lot more functionality like AIO, various stdio
280 extensions, etc. Mainly done by Roland McGrath.
282 * mtrace can now lookup symbols in shared libraries.
283 \f
284 Version 2.2.3
286 * Intel's IA-64 math library is largely integrated. It provides fast and
287 accurate implementatations for most basic and standard math functions
288 in float, double, and long double format.
290 * Stephen Moshier implemented j0, j1, jn, y0, y1, yn, lgamma, erf, erfc,
291 and asin for the 96-bit long double format and asin, log, tan for the
292 128-bit long double format.
294 * The beginning of a last-bit accurate math library by IBM Haifa were added.
295 The basic double functions exist today. Contributed by Abraham Ziv
296 <ziv@il.ibm.com>, Moshe Olshansky <olshansk@il.ibm.com>, Ealan Henis
297 <ealan@il.ibm.com>, and Anna Reitman <reitman@il.ibm.com>.
299 * An asynchronous name lookup library was added. The interface is designed
300 after POSIX AIO. The proposal was circulated beforehand to get comments.
301 No negative ones came in. Implemented by Ulrich Drepper.
303 * Port to S390/64bit contributed by Martin Schwidefsky
304 <schwidefsky@de.ibm.com>.
306 * David Mosberger <davidm@hpl.hp.com> implemented the setcontext family
307 of functions for Linux/IA-64.
309 * The RPC code is now thread safe. Threads can now use the same service
310 of different services at the same time. Patch by Eric Norum
311 <eric.norum@usask.ca> with some help by Ulrich Drepper.
313 * Martin Schwidefsky <schwidefsky@de.ibm.com> implemented the setcontext
314 family of functions for Linux/S390.
316 * Ulrich Drepper <drepper@redhat.com> implemented the setcontext family
317 of functions for Linux/x86.
319 * Port to Linux/CRIS contributed by Axis Communications.
320 \f
321 Version 2.2.2
323 * Lots of headers were cleaned up. Using the tool in the conform/ subdir
324 we can now check for namespace violations and missing declarations. The
325 result is that almost all headers are now Unix-compliant (as defined in
326 the upcoming XPG6). The negative side is that some programs might need
327 corrections, too, if they depend on the incorrect form of the headers in
328 previous versions which defined too many symbols and included too many
329 other headers.
331 * regex now handles multibyte character sets correctly.
332 Contributed by Isamu Hasegawa <isamu@yamato.ibm.com>.
334 * iconv (the program) does now conform to the upcoming XPG6 and handles
335 charmaps. Instead of the charset names the path of charmaps can be
336 provided and the conversion happens based on this data.
337 Contributed by Ulrich Drepper.
339 * The locale program now provides detailed information about the installed
340 locales. While
342 locale -a
344 only lists the names of the supported locales
346 locale -a --verbose
348 provides details such as country, language, and codeset name.
349 Contributed by Ulrich Drepper.
350 \f
351 Version 2.2.1
353 * The gencat program now parses the input file according to the charset
354 selected by the LC_CTYPE category. This is important for stateful
355 character sets. To make generating catalogs easier there is a way
356 to overwrite the charset selected by the locale: before the first
357 message or $ quote line the catalog can contain a line like
359 $ codeset=ISO-8859-2
361 to select the charset (ISO-8859-2 in this case).
363 Implemented by Shinya Hanataka and Ulrich Drepper.
365 * New codeset conversion modules: IBM-922 (Estonia PC codeset),
366 IBM-1124 (Ukraine PC codeset), IBM-1129 (Vietnamese PC codeset).
367 Contributed by Masahide Washizawa <washi@jp.ibm.com>.
369 * Optimized string functions for Alpha ev6 and ev67 by Richard Henderson
370 <rth@redhat.com> and Rick Gorton <rick.gorton@alpha-processor.com>.
372 * The LANGUAGE environment variable is now ignored unless the locale is
373 changed from the default "C" locale.
375 * The usual bug fixes.
376 \f
377 Version 2.2
379 * Greg McGary added runtime support for bounds checking using gcc's
380 new -fbounded-pointers option. ix86 target is complete. PowerPC
381 is in progress.
383 * Thorsten Kukuk added secure mode support to nscd.
385 * The Berkeley db libraries have been removed.
387 Related, the nss_db module is now in a separate package since it
388 obviously requires a database library being available.
390 * Wide character I/O streams implemented by Ulrich Drepper.
392 * Functions from the extended socket API added by Ulrich Drepper.
394 * Functions feenableexcept and fedisableexcept to control the
395 behaviour of individual exceptions have been added by Andreas Jaeger.
397 * ldconfig program added by Andreas Jaeger and Jakub Jelinek.
399 * The resolver code has been updated from bind 8.2.3-T5B which supports
400 threads. The integration was done by Andreas Jaeger, Adam D. Bradley,
401 and Mark Kettenis.
403 This change could in some situations effect backward compatibility. Since
404 now `_res' is a thread-local instead of a global variable, modifying it
405 in one thread does not have any effect in other threads.
407 The resolver library was also extended to allow IPv6 as the transport
408 protocol for the requests. This work was done by Stig Venaas.
410 * Compatibility code for K&R C compilers has been removed from the
411 header files. A ISO C compiler is needed to use the library
412 (conforming to either C89 or C99 standard).
414 * Complete rewrite of the localedef program to support multibyte character
415 sets. Implement handling of ISO 14651 and ISO 14652. Rewrite strcoll,
416 strxfrm, wcscoll, and wcsxfrm functions. Make isw*() functions work.
417 Implemented by Ulrich Drepper.
419 Bruno Haible significantly improved the generation and use of the data
420 structures for the wide character tables.
422 * Plural handling in gettext implemented by Ulrich Drepper.
424 * The utmp daemon has been removed.
426 * The port to MIPS-Linux has been finished by Andreas Jaeger.
428 * A port to Hitachi SH3 and SH4 has been contributed by Kazumoto Kojima
429 and Yutaka Niibe.
431 * POSIX clocks and timers implemented by Kaz Kylheku and Ulrich Drepper.
433 * POSIX barriers implemented by Kaz Kylheku.
435 * POSIX spawn function family implemented by Ulrich Drepper.
437 * POSIX spinlocks are now available.
439 * Timed wait functions for mutex, rwlock, and semaphores are implemented.
441 * the configure option --enable-kernel=X.Y.Z allows to strip out
442 compatibility for kernel versions before X.Y.Z. This is currently only
443 implemented for Linux.
445 * the sockaddr_in6 structure changed. The IPv6 working group added a new
446 field sin6_scope_id. This means that all programs using IPv6 should be
447 recompiled. Don't expect binary compatibility with previous glibc
448 versions.
450 * various conversion modules for IBM character sets contributed by
451 Masahide Washizawa.
453 * IA-64 port by Jes Sorensen and HJ Lu.
455 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
456 Compiling the GNU C Library for Linux/ia64
457 ******************************************
459 Please refer to the file INSTALL in the same directory as you found
460 this file for general information about configuring and compiling
461 glibc.
463 For general inquiries about glibc under Linux/ia64 please use the
464 following mailing list linux-ia64@linuxia64.org or one of the relevant
465 glibc mailing lists.
467 Recommended Tools for Compilation
468 =================================
470 In order for glibc-2.2 to build correctly on the ia64 you need at
471 least the following versions of the GNU tools (the :
473 * The Cygnus toolchain snapshot for the ia64 as of August 4
474 including the provided set of patches. It is however recommend
475 you use the October 24 toolchain snapshot or a more recent version.
477 OR alternatively you can try the following (the Cygnus toolchain is
478 the recommended solution):
480 * GCC and binutils, GAS and GNU LD out of CVS from
481 sources.redhat.com as of August 28, 2000 or later. The CVS tree
482 may require special patches to work properly on the ia64.
484 Configuring and compiling GNU Libc for Linux/ia64
485 =================================================
487 The library requires Linux kernel version 2.4.0-test4-000728 or
488 later to funtion properly. Besides that it support for debug libraries
489 is currently untested. Hence the following options
490 are required for configuring the library:
492 --disable-debug --enable-kernel=2.4.0
494 It is also important that you make sure the library picks up the
495 appropriate kernel header files, if you do not have recent enough
496 kernel headers in /usr/src/linux/include, you should use the
497 --with-headers=<path> option to specify the location.
499 As an example I personally use the following options to configure
500 the library:
502 --disable-debug
503 --disable-cvs
504 --enable-kernel=2.4.0
505 --host=ia64-linux
506 --enable-add-ons=yes
507 --prefix=/usr
508 --with-headers=/home/jes/linux/include
511 Good luck
513 Jes Sorensen <jes@linuxcare.com>,
514 November 14th, 2000
515 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
516 \f
517 Version 2.1.3
519 * bug fixes
521 \f
522 Version 2.1.2
524 * bug fixes
526 \f
527 Version 2.1.1
529 * New ISO C 9x function _Exit, imaxabs, and imaxdiv are added.
531 * New xdr functions are added; some rpc functions are now 64bit clean.
533 * Fixed a number of bugs and memory leaks (especially in NIS+ code).
535 * Fixed known incompatibilities with glibc 2.0.
537 * New functions lock64, strchrnul, rawmemchr, getutmp and getutmpx.
539 * Optimized a number of functions (especially the ELF dynamic loader).
541 * Update timezone data files.
543 * lots of charmaps corrections
545 * some new locale definitions and charmaps
547 \f
548 Version 2.1
550 * Richard Henderson corrected size of struct timeval on Linux/Alpha to
551 conform to POSIX member type requirements. Symbol versions have been
552 adjusted as needed within the library, and for direct use by applications,
553 but there is potential for problems if third-party libraries use
554 struct timeval as part of their interface. This does not present
555 a problem for X and other "essential" system libraries.
557 * An additional locale model to support C++ Standard Library locale
558 model and probably more was implemented by Ulrich Drepper.
560 * Eric Youngdale and Ulrich Drepper implemented versioning of objects on
561 symbol level.
563 * Miles Bader provided the `argp' function family to support hierachical
564 command line argument parsing, layered on top of getopt.
566 * strtod accepts new hexadecimal floating-point format from ISO C 9X.
568 * printf has two new specifiers %a and %A to print hexadecimal flaoting-point
569 numbers.
571 * scanf recognizes the %a and %A format for scanning floating point numbers.
573 * the new headers <stdint.h> and <inttypes.h> from ISO C 9X provides
574 information and interfaces for the available integer types.
576 * about 130 new math functions were added to implement the ISO C9x math
577 library.
579 * the new header <complex.h> contains definitions of the complex math
580 functions from ISO C 9X.
582 * the new header <tgmath.h> defines generic macros to use complex or
583 real valued functions.
585 * Thorsten Kukuk provided an implementation for NIS+, securelevel 0, 1 and 2.
587 * Andreas Jaeger provided a test suite for the math library.
589 * Mark Kettenis implemented the utmpx interface and an utmp daemon.
591 * Ulrich Drepper added character set conversion functions (iconv).
593 * Optimized string functions have been added.
595 * The localedata addon is now part of glibc.
597 * An implementation of profiling shared libraries was added by Ulrich Drepper.
599 * Thorsten Kukuk and Ulrich Drepper provided an implementation for a caching
600 daemon for NSS (nscd).
602 Missing a better place here are some numbers on improvements. Under
603 Linux 2.1.125 un-tar-ing the kernel sources takes
605 user system wall
607 using local files 12.19s 6.88s 22.91s
609 using NIS 13.92s 8.91s 26.34s
611 using NIS & nscd 10.37s 7.34s 25.30s
613 using NIS+ 27.57s 30.37s 640.46s
615 using NIS+ & nscd 10.25s 7.83s 26.51s
617 using NIS & old nscd [1] 13.83s 8.32s 29.60s
619 Keep in mind that non-namelookup related operations dominate above times.
620 It was just a common complain that using NIS+ unpacking the kernel is
621 horribly slow.
623 [1] The old nscd implementation is not available anymore since it was
624 distributed with glibc up to version 2.0.98 and thus is now replaced.
626 * Tim Waugh provided an implementation of the POSIX.2 wordexp function family.
628 * Mark Kettenis provided a Hesiod NSS module.
630 * The ELF dynamic loader knows how to process dynamic string tokens ($ORIGIN
631 and $PLATFORM) in RPATHs and similar strings (Ulrich Drepper).
633 * rcmd can now handle netgroups (Dick Streefland).
635 * A port to the ARM was contributed by Phil Blundell, Pat Beirne and Scott
636 Bambrough.
638 * Support for the IPv6 protocol has been added to the socket API, as per the
639 latest draft standards.
641 * Support for Linux 2.2 has been added.
643 * Interface changes relative to the latest 2.0.x release:
644 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
645 addseverity NEW: Unix98
646 alphasort64 NEW: LFS
647 argp_err_exit_status NEW: argp, GNU ext
648 argp_error NEW: argp, GNU ext
649 argp_failure NEW: argp, GNU ext
650 argp_help NEW: argp, GNU ext
651 argp_parse NEW: argp, GNU ext
652 argp_program_bug_address NEW: argp, GNU ext
653 argp_program_version NEW: argp, GNU ext
654 argp_program_version_hook NEW: argp, GNU ext
655 argp_state_help NEW: argp, GNU ext
656 argp_usage NEW: argp, GNU ext
657 authdes_create NEW: Secure RPC
658 authdes_getucred NEW: Secure RPC
659 authdes_pk_create NEW: Secure RPC
660 backtrace NEW: GNU ext.
661 backtrace_symbols NEW: GNU ext.
662 backtrace_symbols_fd NEW: GNU ext.
663 cacos NEW: ISO C 9x
664 cacosf NEW: ISO C 9x
665 cacosh NEW: ISO C 9x
666 cacoshf NEW: ISO C 9x
667 cacoshl NEW: ISO C 9x
668 cacosl NEW: ISO C 9x
669 capget NEW: kernel
670 capset NEW: kernel
671 carg NEW: ISO C 9x
672 cargf NEW: ISO C 9x
673 cargl NEW: ISO C 9x
674 casin NEW: ISO C 9x
675 casinf NEW: ISO C 9x
676 casinh NEW: ISO C 9x
677 casinhf NEW: ISO C 9x
678 casinhl NEW: ISO C 9x
679 casinl NEW: ISO C 9x
680 catan NEW: ISO C 9x
681 catanf NEW: ISO C 9x
682 catanh NEW: ISO C 9x
683 catanhf NEW: ISO C 9x
684 catanhl NEW: ISO C 9x
685 catanl NEW: ISO C 9x
686 cbc_crypt NEW: Secure RPC
687 ccos NEW: ISO C 9x
688 ccosf NEW: ISO C 9x
689 ccosh NEW: ISO C 9x
690 ccoshf NEW: ISO C 9x
691 ccoshl NEW: ISO C 9x
692 ccosl NEW: ISO C 9x
693 cexp NEW: ISO C 9x
694 cexpf NEW: ISO C 9x
695 cexpl NEW: ISO C 9x
696 cimag NEW: ISO C 9x
697 cimagf NEW: ISO C 9x
698 cimagl NEW: ISO C 9x
699 clearerr_locked REMOVED
700 clntunix_create NEW: sunrpc ext
701 clog NEW: ISO C 9x
702 clog10 NEW: ISO C 9x
703 clog10f NEW: ISO C 9x
704 clog10l NEW: ISO C 9x
705 clogf NEW: ISO C 9x
706 clogl NEW: ISO C 9x
707 conj NEW: ISO C 9x
708 conjf NEW: ISO C 9x
709 conjl NEW: ISO C 9x
710 cpow NEW: ISO C 9x
711 cpowf NEW: ISO C 9x
712 cpowl NEW: ISO C 9x
713 cproj NEW: ISO C 9x
714 cprojf NEW: ISO C 9x
715 cprojl NEW: ISO C 9x
716 creal NEW: ISO C 9x
717 crealf NEW: ISO C 9x
718 creall NEW: ISO C 9x
719 creat64 NEW: LFS
720 csin NEW: ISO C 9x
721 csinf NEW: ISO C 9x
722 csinh NEW: ISO C 9x
723 csinhf NEW: ISO C 9x
724 csinhl NEW: ISO C 9x
725 csinl NEW: ISO C 9x
726 csqrt NEW: ISO C 9x
727 csqrtf NEW: ISO C 9x
728 csqrtl NEW: ISO C 9x
729 ctan NEW: ISO C 9x
730 ctanf NEW: ISO C 9x
731 ctanh NEW: ISO C 9x
732 ctanhf NEW: ISO C 9x
733 ctanhl NEW: ISO C 9x
734 ctanl NEW: ISO C 9x
735 des_setparity NEW: Secure RPC
736 ecb_crypt NEW: Secure RPC
737 endutxent NEW: Unix98
738 exp10 NEW: ISO C 9x
739 exp10f NEW: ISO C 9x
740 exp10l NEW: ISO C 9x
741 exp2 NEW: ISO C 9x
742 exp2f NEW: ISO C 9x
743 exp2l NEW: ISO C 9x
744 fattach NEW: STREAMS
745 fdetach NEW: STREAMS
746 fdim NEW: ISO C 9x
747 fdimf NEW: ISO C 9x
748 fdiml NEW: ISO C 9x
749 feclearexcept NEW: ISO C 9x
750 fegetenv NEW: ISO C 9x
751 fegetexceptflag NEW: ISO C 9x
752 fegetround NEW: ISO C 9x
753 feholdexcept NEW: ISO C 9x
754 feof_locked REMOVED
755 feraiseexcept NEW: ISO C 9x
756 ferror_locked REMOVED
757 fesetenv NEW: ISO C 9x
758 fesetexceptflag NEW: ISO C 9x
759 fesetround NEW: ISO C 9x
760 fetestexcept NEW: ISO C 9x
761 feupdateenv NEW: ISO C 9x
762 fflush_locked REMOVED
763 ffsl NEW: GNU ext.
764 ffsll NEW: GNU ext.
765 fgetpos64 NEW: LFS
766 fgets_unlocked NEW: GNU ext.
767 fileno_locked REMOVED
768 fma NEW: ISO C 9x
769 fmaf NEW: ISO C 9x
770 fmal NEW: ISO C 9x
771 fmax NEW: ISO C 9x
772 fmaxf NEW: ISO C 9x
773 fmaxl NEW: ISO C 9x
774 fmin NEW: ISO C 9x
775 fminf NEW: ISO C 9x
776 fminl NEW: ISO C 9x
777 fmtmsg NEW: Unix98
778 fopen64 NEW: LFS
779 fputc_locked REMOVED
780 fputs_unlocked NEW: GNU ext.
781 fread_unlocked NEW: GNU ext.
782 freopen64 NEW: LFS
783 fseeko NEW: Unix98
784 fsetpos64 NEW: LFS
785 fstatfs64 NEW: LFS
786 fstatvfs NEW: Unix98
787 fstatvfs64 NEW: LFS
788 ftello NEW: Unix98
789 ftello64 NEW: LFS
790 ftruncate64 NEW: LFS
791 ftw64 NEW: LFS
792 fwrite_unlocked NEW: GNU ext.
793 gai_strerror NEW: IPv6
794 gamma_r REMOVED
795 gammaf_r REMOVED
796 gammal_r REMOVED
797 getchar_locked REMOVED
798 getdate NEW: Unix98
799 getdate_err NEW: Unix98
800 getdate_r NEW: GNU ext.
801 getmsg NEW: STREAMS
802 getnameinfo NEW: IPv6
803 getnetname NEW: Secure RPC
804 getpmsg NEW: STREAMS
805 getpt NEW: Unix98 PTY
806 getrlimit64 NEW: LFS
807 getutxent NEW: Unix98
808 getutxid NEW: Unix98
809 getutxline NEW: Unix98
810 glob64 NEW: GNU ext.
811 globfree64 NEW: GNU ext.
812 gnu_get_libc_release NEW: GNU ext.
813 gnu_get_libc_version NEW: GNU ext.
814 grantpt NEW: Unix98 PTY
815 host2netname NEW: Secure RPC
816 iconv NEW: iconv
817 iconv_close NEW: iconv
818 iconv_open NEW: iconv
819 if_freenameindex NEW: IPv6
820 if_indextoname NEW: IPv6
821 if_nameindex NEW: IPv6
822 if_nametoindex NEW: IPv6
823 in6addr_any NEW: IPv6
824 in6addr_loopback NEW: IPv6
825 inet6_isipv4mapped NEW: IPv6
826 isastream NEW: STREAMS
827 iswblank NEW: GNU ext.
828 key_decryptsession NEW: Secure RPC
829 key_decryptsession_pk NEW: Secure RPC
830 key_encryptsession NEW: Secure RPC
831 key_encryptsession_pk NEW: Secure RPC
832 key_gendes NEW: Secure RPC
833 key_get_conv NEW: Secure RPC
834 key_secretkey_is_set NEW: Secure RPC
835 key_setnet NEW: Secure RPC
836 key_setsecret NEW: Secure RPC
837 llrint NEW: ISO C 9x
838 llrintf NEW: ISO C 9x
839 llrintl NEW: ISO C 9x
840 llround NEW: ISO C 9x
841 llroundf NEW: ISO C 9x
842 llroundl NEW: ISO C 9x
843 log2 NEW: ISO C 9x
844 log2f NEW: ISO C 9x
845 log2l NEW: ISO C 9x
846 lrint NEW: ISO C 9x
847 lrintf NEW: ISO C 9x
848 lrintl NEW: ISO C 9x
849 lround NEW: ISO C 9x
850 lroundf NEW: ISO C 9x
851 lroundl NEW: ISO C 9x
852 lseek64 NEW: LFS
853 makecontext NEW: Unix98
854 mempcpy NEW: GNU ext.
855 mmap64 NEW: LFS
856 moncontrol REMOVED
857 modify_ldt NEW: kernel
858 nan NEW: ISO C 9x
859 nanf NEW: ISO C 9x
860 nanl NEW: ISO C 9x
861 nearbyint NEW: ISO C 9x
862 nearbyintf NEW: ISO C 9x
863 nearbyintl NEW: ISO C 9x
864 netname2host NEW: Secure RPC
865 netname2user NEW: Secure RPC
866 nexttoward NEW: ISO C 9x
867 nexttowardf NEW: ISO C 9x
868 nexttowardl NEW: ISO C 9x
869 nftw NEW: Unix98
870 nftw64 NEW: LFS
871 open64 NEW: LFS
872 passwd2des NEW: Secure RPC
873 pow10 NEW: GNU ext.
874 pow10f NEW: GNU ext.
875 pow10l NEW: GNU ext.
876 pread NEW: Unix98
877 pread64 NEW: LFS
878 printf_size NEW: GNU ext.
879 printf_size_info NEW: GNU ext.
880 profil_counter REMOVED
881 pthread_mutexattr_getkind_np REPLACED
882 pthread_mutexattr_setkind_np REPLACED
883 ptsname NEW: Unix98 PTY
884 ptsname_r NEW: Unix98 PTY
885 putc_locked REMOVED
886 putchar_locked REMOVED
887 putgrent NEW: GNU ext.
888 putmsg NEW: STREAMS
889 putpmsg NEW: STREAMS
890 pututxline NEW: Unix98
891 pwrite NEW: Unix98
892 pwrite64 NEW: LFS
893 readdir64 NEW: LFS
894 readdir64_r NEW: LFS
895 remquo NEW: ISO C 9x
896 remquof NEW: ISO C 9x
897 remquol NEW: ISO C 9x
898 round NEW: ISO C 9x
899 roundf NEW: ISO C 9x
900 roundl NEW: ISO C 9x
901 rtime NEW: GNU ext.
902 scalbln NEW: ISO C 9x
903 scalblnf NEW: ISO C 9x
904 scalblnl NEW: ISO C 9x
905 scandir64 NEW: LFS
906 sendfile NEW: kernel
907 setcontext NEW: Unix98
908 setrlimit64 NEW: LFS
909 setutxent NEW: Unix98
910 sighold NEW: Unix98
911 sigignore NEW: Unix98
912 sigqueue NEW: POSIX.1b
913 sigrelse NEW: Unix98
914 sigset NEW: POSIX.1b
915 sigtimedwait NEW: POSIX.1b
916 sigwaitinfo NEW: POSIX.1b
917 sincos NEW: GNU ext.
918 sincosf NEW: GNU ext.
919 sincosl NEW: GNU ext.
920 statfs64 NEW: LFS
921 statvfs NEW: Unix98
922 statvfs64 NEW: LFS
923 strcasestr NEW: GNU ext.
924 strtoimax NEW: ISO C 9x
925 strtoumax NEW: ISO C 9x
926 strverscmp NEW: GNU ext.
927 svcauthdes_stats NEW: Secure RPC
928 svcunix_create NEW: sunrpc etx
929 svcunixfd_create NEW: sunrpc ext
930 swapcontext NEW: Unix98
931 tcgetsid NEW: Unix98 PTY
932 tdestroy NEW: GNU ext.
933 tgamma NEW: ISO C 9x
934 tgammaf NEW: ISO C 9x
935 tgammal NEW: ISO C 9x
936 tmpfile64 NEW: LFS
937 trunc NEW: ISO C 9x
938 truncate64 NEW: LFS
939 truncf NEW: ISO C 9x
940 truncl NEW: ISO C 9x
941 umount2 NEW: kernel
942 unlockpt NEW: Unix98 PTY
943 updwtmpx NEW: Unix98
944 user2netname NEW: Secure RPC
945 utmpxname NEW: Unix98
946 versionsort NEW: GNU ext.
947 versionsort64 NEW: GNU ext.
948 waitid NEW: Unix98
949 wcscasecmp NEW: GNU ext.
950 wcsncasecmp NEW: GNU ext.
951 wcsnlen NEW: GNU ext.
952 wcstoimax NEW: ISO C 9x
953 wcstoll NEW: ISO C 9x
954 wcstoull NEW: ISO C 9x
955 wcstoumax NEW: ISO C 9x
956 wcswcs NEW: Unix98
957 wordexp NEW: POSIX.2
958 wordfree NEW: POSIX.2
959 write_profiling REMOVED
960 xdecrypt NEW: Secure RPC
961 xdr_authdes_cred NEW: Secure RPC
962 xdr_authdes_verf NEW: Secure RPC
963 xdr_cryptkeyarg NEW: Secure RPC
964 xdr_cryptkeyarg2 NEW: Secure RPC
965 xdr_cryptkeyres NEW: Secure RPC
966 xdr_getcredres NEW: Secure RPC
967 xdr_key_netstarg NEW: Secure RPC
968 xdr_key_netstres NEW: Secure RPC
969 xdr_keybuf NEW: Secure RPC
970 xdr_keystatus NEW: Secure RPC
971 xdr_netnamestr NEW: Secure RPC
972 xdr_sizeof NEW: Secure RPC
973 xdr_unixcred NEW: sunrpc ext
974 xencrypt NEW: Secure RPC
975 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
976 \f
977 Version 2.0.6
979 * more bug fixes
981 \f
982 Version 2.0.5
984 * more bug fixes
986 * inet_ntoa is thread-safe
988 * updwtmp is moved from libutil to libc
990 * rewrite of cbrt function
992 * update of timezone data
993 \f
994 Version 2.0.4
996 * more bug fixes
997 \f
998 Version 2.0.3
1000 * more bug fixes
1001 \f
1002 Version 2.0.2
1004 * more bug fixes
1006 * add atoll function
1008 * fix complex problems in Berkeley DB code
1010 * fix math functions
1011 \f
1012 Version 2.0.1
1014 * fixed lots of header problems (especially Linux/GNU specific)
1016 * dynamic loader preserves all registers
1018 * Roland McGrath provided support for handling of auxiliary objects in
1019 the ELF dynamic loader.
1021 * support for parallel builds is improved
1022 \f
1023 Version 2.0
1025 * GNU extensions are no longer declared by default. To enable them you
1026 must define the macro `_GNU_SOURCE' in your program or compile with
1027 `-D_GNU_SOURCE'.
1029 * The library has changed from using GNU ld symbol aliases to using weak
1030 symbols where available. The ELF object file format supports weak
1031 symbols; GNU ld also supports weak symbols in the a.out format. (There
1032 is also now support for other GNU ld extensions in ELF. Use the
1033 `--with-elf' option to configure to indicate you have ELF, and
1034 `--with-gnu-ld' if using GNU ld.) This change resulted in the deletion
1035 of many files which contained only symbol aliases, reducing the size of
1036 the source and the compiled library; many other files were renamed to
1037 less cryptic names previously occupied by the symbol alias files.
1038 There is a new header file <elf.h> for programs which operate on
1039 files in the ELF format.
1041 * Converted to Autoconf version 2, so `configure' has more options.
1042 Run `configure --help' to see the details.
1044 * The library can now be configured to build profiling, highly-optimized
1045 (but undebuggable), and/or shared libraries (ELF with GNU ld only). The
1046 `--enable-profile', `--enable-omitfp', and `--enable-shared' options to
1047 `configure' enable building these extra libraries. The shared library is
1048 built by default when using both ELF and GNU ld. When shared libraries
1049 are enabled, the new library `-ldl' is available for arbitrary run-time
1050 loading of shared objects; its interface is defined in <dlfcn.h>. The
1051 new header file <link.h> gives access to the internals of the run-time
1052 dynamic linker, `ld.so'. The shell script `ldd' is similar to the
1053 application of same name on other systems and it provides information
1054 about dynamically linked binaries.
1056 * The C library now provides the run-time support code for profiling
1057 executables compiled with `-pg'. Programs can control the profiling code
1058 through the interface in <sys/gmon.h>. The `gmon.out' files written by
1059 the GNU C library can be read only by GNU `gprof' (from GNU binutils);
1060 the support for this file format was contributed by David Mosberger-Tang.
1062 * The math code has been replaced with a math library based on fdlibm from
1063 Sun, and modified by JT Conklin and Ulrich Drepper with i387 support, by
1064 Ian Taylor with `float' functions and by Ulrich Drepper with `long double'
1065 functions. The math functions now reside in a separate library, so
1066 programs using them will need to use `-lm' their linking commands.
1068 * John C. Bowman contributed optimized ix87 assembler inline functions.
1070 * Ulrich Drepper has contributed support for an `/etc/nsswitch.conf'
1071 mechanism similar to that found in Solaris 2. This is now used for the
1072 group, passwd, hosts, networks, services, protocols, rpc, ethers,
1073 shadow, netgroup, publickey, and alias databases. The `nsswitch.conf'
1074 file controls what services are used for each individual database. This
1075 works by loading shared libraries with names specified in `nsswitch.conf',
1076 so service modules can be changed or added at any time without even
1077 relinking any program. Currently there are the file, db, and NIS based
1078 NSS services available.
1080 * The new functions `strtoq' and `strtouq' parse integer values from
1081 strings, like `strtol' and `strtoul', but they return `long long int' and
1082 `unsigned long long int' values, respectively (64-bit quantities).
1084 * The new functions `strtof' and `strtold' parse floating-point values from
1085 strings, like `strtod', but they return `float' and `long double' values,
1086 respectively (on some machines `double' and `long double' are the same).
1088 * Ulrich Drepper has contributed new implementations of the floating-point
1089 printing and reading code used in the `printf' family of functions and
1090 `strtod', `strtof', and `strtold'. These new functions are perfectly
1091 accurate, and much faster than the old ones.
1093 * The implementation of the POSIX locale model was completely rewritten by
1094 Ulrich Drepper. This includes the new programs `localedef' and `locale'
1095 to compile the POSIX locale definition.
1097 * The former dummy implementations of the strcoll and strxfrm function are
1098 now replaced by fully functional code contributed by Ulrich Drepper. The
1099 collation information comes from the POSIX locale definitions.
1101 * The new header <langinfo.h> defines an interface for accessing
1102 various locale-dependent data (using the locale chosen with `setlocale').
1104 * Ulrich Drepper has contributed a new suite of functions for operation on
1105 wide-character and multibyte-character strings, in <wchar.h>;
1106 and classification and case conversion of wide characters, in <wctype.h>.
1107 These new functions are conforming to the ISO C, Amendement 1 specification.
1109 * There is now a second implementation of the standard I/O library available.
1110 It comes from GNU libg++ as was written by Per Bothner, heavily modified
1111 by Hongjiu Lu and made thread safe by Ulrich Drepper.
1113 * You can now use positional parameter specifications in format strings
1114 for the `printf' and `scanf' families of functions. For example,
1115 `printf ("Number %2$d, Mr %1$s\n", "Jones", 6);'' prints
1116 ``Number 6, Mr Jones''. This is mainly useful when providing different
1117 format strings for different languages, whose grammars may dictate
1118 different orderings of the values being printed. To support this
1119 feature, the interface for `register_printf_handler' has changed; see
1120 the header file <printf.h> for details.
1122 * The `printf' and `scanf' families of functions now understand a new
1123 formatting flag for numeric conversions: the ' flag (e.g. %'d or %'f) says
1124 to group numbers as indicated by the locale; for `scanf' and friends, this
1125 says to accept as valid only a number with all the proper grouping
1126 separators in the right places. In the default "C" locale, numbers are
1127 not grouped; but locales for specific countries will define the usual
1128 conventions (i.e. separate thousands with `,' in the US locale).
1130 * The pgrp functions have been regularized, slightly incompatibly but much
1131 less confusingly. The core functions are now `getpgid' and `setpgid',
1132 which take arguments for the PID to operate on; the POSIX.1 `getpgrp' (no
1133 argument) and BSD `setpgrp' (identical to `setpgid') functions are
1134 provided for compatibility. There is no longer an incompatible `getpgrp'
1135 with an argument declared under _BSD_SOURCE; no BSD code uses it.
1137 * The new header file <fts.h> and suite of functions simplify programs that
1138 operate on directory trees. This code comes from 4.4 BSD.
1140 * The resolver code has been updated from the BIND 4.9.5-P1 release.
1141 Parts of the code were heavily modified by Ulrich Drepper to fit in the
1142 NSS scheme used in glibc.
1144 * There is a new malloc debugging hook `__memalign_hook'.
1146 * There are new typedefs `ushort' for `unsigned short int' and `uint' for
1147 `unsigned int' in <sys/types.h>. These are for compatibility only and
1148 their use is discouraged.
1150 * The `-lmcheck' library to enable standard malloc debugging hooks is now
1151 done differently, so that it works even without GNU ld.
1153 * New function `euidaccess' checks allowed access to a file like `access',
1154 but using the effective IDs instead of the real IDs.
1156 * The time zone data files have been updated for the latest and greatest
1157 local time conventions of the countries of the world.
1159 * The new function `dirfd' extracts the file descriptor used by a DIR stream;
1160 see <dirent.h>.
1162 * The new functions `ecvt', `fcvt', and `gcvt' provide an obsolete interface
1163 for formatting floating-point numbers. They are provided only for
1164 compatibility; new programs should use `sprintf' instead. There are
1165 also equivalent function for the `long double' floating-point type and
1166 all functions also exist in a reentrant form.
1168 * The new auxiliary library `-lutil' from 4.4 BSD contains various
1169 functions for maintaining the login-record files (primarily of use to
1170 system programs such as `login'), and convenient functions for
1171 allocating and initializing a pseudo-terminal (pty) device.
1173 * Ulrich Drepper has contributed new support for System V style
1174 shared memory and IPC on systems that support it.
1176 * Ulrich Drepper has contributed several miscellaneous new functions found
1177 in System V: The `hsearch' family of functions provide an effective
1178 implementation of hash tables; `a64l' and `l64a' provide a very simple
1179 binary to ASCII mapping; `drand48' and friends provide a 48-bit random
1180 number generator.
1182 * Ulrich Drepper has contributed new reentrant counterparts for the
1183 `random' and `hsearch' families of functions; `random_r', `hsearch_r', etc.
1185 * Ulrich Drepper has contributed new, highly-optimized versions of several
1186 string functions for the i486/Pentium family of processors.
1188 * Ulrich Drepper has updated the Linux-specific code, based largely
1189 on work done in Hongjiu Lu's version of GNU libc for Linux.
1190 The GNU library now supports Linux versions 2.0.10 and later,
1191 using the ELF object file format (i[3456]86-*-linux).
1193 * Andreas Schwab has ported the C library to Linux/m68k (m68k-*-linux).
1195 * David Mosberger-Tang and Richard Henderson have ported the C library
1196 to Linux/Alpha (alpha-*-linux). Richard Henderson contributed the
1197 dynamic linking support for ELF/Alpha.
1199 * Richard Henderson contributed several Alpha optimized assembler function
1200 for arithmetic and string handling.
1202 * Ulrich Drepper has contributed a new set of message catalog functions to
1203 support multiple languages using the <libintl.h> interface, for use with
1204 his new package GNU gettext. Translation volunteers have contributed
1205 catalogs of the library's messages in Spanish, German, and Korean.
1207 * For compatibility with XPG4, Ulrich Drepper has contributed the `gencat'
1208 program and the `catgets' function for reading the catalog files it
1209 creates. (The <libintl.h> interface is preferred; we include the
1210 <nl_types.h> interface using `catgets' only for source compatibility with
1211 programs already written to use it.)
1213 * New header file <values.h> gives SVID-compatible names for <limits.h>
1214 constants.
1216 * Various new macros, declarations, and small header files for compatibility
1217 with 4.4 BSD.
1219 * New function `group_member' is a convenient way to check if a process has
1220 a given effective group ID.
1222 * When using GCC 2.7 and later, the socket functions are now declared in a
1223 special way so that passing an argument of type `struct sockaddr_in *',
1224 `struct sockaddr_ns *', or `struct sockaddr_un *' instead of the generic
1225 `struct sockaddr *' type, does not generate a type-clash warning.
1227 * New function `error' declared in header file <error.h> is a convenient
1228 function for printing error messages and optionally exiting; this is the
1229 canonical function used in GNU programs. The new functions `err', `warn',
1230 and friends in header file <err.h> are the canonical 4.4 BSD interface for
1231 doing the same thing.
1233 * The <glob.h> interface has several new flags from 4.4 BSD that extend the
1234 POSIX.2 `glob' function to do ~ and {...} expansion.
1236 * New function `unsetenv' complements `setenv' for compatibility with 4.4 BSD.
1237 `clearenv' which is used in POSIX.9 is also available.
1239 * New function `getsid' returns session ID number on systems that support it.
1241 * We have incorporated the 4.4 BSD `db' library (version 1.85). New header
1242 files <db.h> and <mpool.h> provide a rich set of functions for several
1243 types of simple databases stored in memory and in files, and <ndbm.h> is
1244 an old `ndbm'-compatible interface using the `db' functions. Link with
1245 `-ldb' to get these functions.
1247 * New macro `strdupa' copies a string like `strdup', but uses local stack
1248 space from `alloca' instead of dynamic heap space from `malloc'.
1250 * New function `strnlen' is like `strlen' but searches only a given maximum
1251 number of characters for the null terminator. `stpncpy', `strndup' and
1252 `strndupa' are similar variants for the `stpcpy', `strdup' and `strdupa'
1253 function.
1255 * New function `statfs' in header <sys/statfs.h>.
1257 * The new <argz.h> and <envz.h> interfaces contributed by Miles Bader
1258 provide convenient functions for operating on blocks of null-terminated
1259 strings.
1261 * A new suite of functions in <utmp.h> handle all the details of reading
1262 and writing the utmp file.
1264 * An implementation of the NIS/YP(tm) based NSS service was contributed by
1265 Thorsten Kukuk.
1267 * Paul Eggert and Ulrich Drepper modified the `strftime' function to be
1268 completely POSIX compliant and also implemented the extended functionality
1269 to handle alternate digit representation and alternate era date formats.
1271 * Ulrich Drepper provided an implementation of the `strptime' function
1272 defined in XPG4.2 which transforms a string into a `struct tm' value.
1274 * Paul Eggert provided the tzselect shell script as part of the timezone
1275 code. The shell script makes it easy to select the correct timezone
1276 specification.
1278 * The implementation of the malloc family of functions is completely replaced
1279 by a new implementation by Doug Lea with many improvements by Wolfram Gloger.
1280 The implementation uses the mmap function (if available) and it is
1281 optimized for the use in multi threaded programs.
1283 * Ulrich Drepper contributed a MD5 "encryption" for the crypt family of
1284 functions. This new functionality is usable by specifying a special
1285 salt string and it is compatible with implementation on *BSD systems.
1287 * Lots of functions from the XPG4.2 standard were added by Ulrich Drepper:
1288 `getsubopt' to handle second level command line options, `bsd_signal'
1289 to access BSD style `signal' functionality, the obsolete `regexp' style
1290 expression matcher.
1292 * the `lchown' function is available on system which support this
1293 functionality.
1295 * The implementation of the shadow password handling function was contributed
1296 by Ulrich Drepper.
1298 * David Mosberger-Tang changed the SunRPC implementation to be 64bit safe.
1300 * POSIX.1g support was added. The <sys/select.h> header is available,
1301 `isfdtype' and `pselect' are implemented. Craig Metz contributed an
1302 implementation of `getaddrinfo'.
1303 \f
1304 Version 1.09
1306 * For cross-compilation you should now set `BUILD_CC' instead of `HOST_CC'.
1308 * New header file <fstab.h> and new functions `getfsspec', `getfsent' and
1309 friends, for parsing /etc/fstab. This code comes from 4.4 BSD.
1311 * The new function `daemon' from 4.4 BSD is useful for server programs that
1312 want to put themselves in the background.
1314 * Joel Sherrill has contributed support for several standalone boards that
1315 run without an operating system.
1317 * `printf', `scanf' and friends now accept a `q' type modifier for long
1318 long int as well as `ll'. Formats using these might be `%qu' or `%lld'.
1320 * All of the code taken from BSD (notably most of the math and networking
1321 routines) has been updated from the BSD 4.4-Lite release.
1323 * The resolver code has been updated from the BIND-4.9.3-BETA9 release.
1325 * The new functions `getdomainname' and `setdomainname' fetch or change the
1326 YP/NIS domain name. These are system calls which exist on systems which
1327 have YP (aka NIS).
1329 * The time zone data files have been updated for the latest international
1330 conventions.
1332 * The SunRPC programs `portmap' and `rpcinfo' are now installed in
1333 $(sbindir) (usually /usr/local/sbin) instead of $(bindir).
1334 \f
1335 Version 1.08
1337 * The C library now includes support for Sun RPC, from Sun's free
1338 RPCSRC-4.0 distribution. The `portmap', `rpcinfo', and `rpcgen' programs
1339 are included. (There is still no support for YP.)
1341 * Tom Quinn has contributed a port of the C library to SGI machines running
1342 Irix 4 (mips-sgi-irix4).
1344 * The new `lockf' function is a simplified interface to the locking
1345 facilities of `fcntl', included for compatibility.
1347 * New time functions `timegm', `timelocal', and `dysize' for compatibility.
1349 * New header file <sys/timeb.h> and new function `ftime' for compatibility.
1351 * New header files <poll.h> and <sys/poll.h> and new function `poll' for
1352 compatibility.
1354 * The error message printed by `assert' for a failed assertion now includes
1355 the name of the program (if using GNU ld) and the name of the calling
1356 function (with versions of GCC that support this).
1358 * The `psignal' function is now declared in <signal.h>, not <stdio.h>.
1360 * The library now includes the <sys/mman.h> header file and memory
1361 management functions `mmap', `munmap', `mprotect', `msync', and
1362 `madvise', on systems that support those facilities.
1364 * The interface for `mcheck' has changed slightly: the function called to
1365 abort the program when an allocation inconsistency is detected now takes
1366 an argument that indicates the type of failure. The new function
1367 `mprobe' lets you request a consistency check for a particular block at
1368 any time (checks are normally done only when you call `free' or `realloc'
1369 on a block).
1371 * It is now possible to easily cross-compile the C library, building on one
1372 system a library to run on another machine and/or operating system. All
1373 you need to do is set the variable `HOST_CC' in `configparms' to the
1374 native compiler for programs to run on the machine you are building on (a
1375 few generator programs are used on Unix systems); set `CC' to the
1376 cross-compiler.
1378 * The new function `fexecve' (only implemented on the GNU system) executes
1379 a program file given a file descriptor already open on the file.
1380 \f
1381 Version 1.07
1383 * Brendan Kehoe has contributed most of a port to the DEC Alpha
1384 running OSF/1 (alpha-dec-osf1). He says it is 75% complete.
1386 * You can set the variable `libprefix' in `configparms' to specify a prefix
1387 to be prepended to installed library files; this makes it easy to install
1388 the GNU C library to be linked as `-lgnuc' or whatever.
1390 * The new `stpncpy' is a cross between `stpcpy' and `strncpy': It
1391 copies a limited number of characters from a string, and returns the
1392 address of the last character written.
1394 * You no longer need to check for whether the installed `stddef.h' is
1395 compatible with the GNU C library. configure now checks for you.
1397 * You can now define a per-stream `fileno' function to convert the
1398 stream's cookie into an integral file descriptor.
1400 * ``malloc (0)'' no longer returns a null pointer. Instead, it
1401 allocates zero bytes of storage, and returns a unique pointer which
1402 you can pass to `realloc' or `free'. The behavior is undefined if
1403 you dereference this pointer.
1405 * The C library now runs on Sony NEWS m68k machines running either
1406 NewsOS 3 or NewsOS 4.
1408 * The new `syscall' function is a system-dependent primitive function
1409 for invoking system calls. It has the canonical behavior on Unix
1410 systems, including unreliable return values for some calls (such as
1411 `pipe', `fork' and `getppid').
1413 * The error code `EWOULDBLOCK' is now obsolete; it is always defined
1414 to `EAGAIN', which is the preferred name. On systems whose kernels
1415 use two distinct codes, the C library now translates EWOULDBLOCK to
1416 EAGAIN in every system call function.
1417 \f
1418 Version 1.06
1420 * The GNU C Library Reference Manual is now distributed with the library.
1421 `make dvi' will produce a DVI file of the printed manual.
1422 `make info' will produce Info files that you can read on line using C-h i
1423 in Emacs or the `info' program.
1424 Please send comments on the manual to bug-glibc-manual@gnu.org.
1426 * The library now supports SVR4 on i386s (i386-unknown-sysv4).
1428 * Brendan Kehoe has contributed a port to Sun SPARCs running Solaris 2.
1430 * Jason Merrill has contributed a port to the Sequent Symmetry running
1431 Dynix version 3 (i386-sequent-dynix).
1433 * The library has been ported to i386s running SCO 3.2.4 (also known as SCO
1434 ODT 2.0; i386-unknown-sco3.2.4) or SCO 3.2 (i386-unknown-sco3.2).
1436 * New function `memory_warnings' lets you arrange to get warnings when
1437 malloc is running out of memory to allocate, like Emacs gives you.
1439 * The C library now contains the relocating allocator used in Emacs 19 for
1440 its editing buffers. This allocator (ralloc) minimizes allocation
1441 overhead and fragmentation by moving allocated regions around whenever it
1442 needs to. You always refer to a ralloc'd region with a "handle" (a
1443 pointer to a pointer--an object of type `void **').
1445 * There is a new `printf' format: `%m' gives you the string corresponding
1446 to the error code in `errno'.
1448 * In `scanf' formats, you can now use `%as' or `%a[' to do the normal `%s'
1449 or `%[' conversion, but instead of filling in a fixed-sized buffer you
1450 pass, the `a' modifier says to fill in a `char **' you pass with a
1451 malloc'd string.
1453 * The `fnmatch' function supports the new flag bits `FNM_LEADING_DIR' and
1454 `FNM_CASEFOLD'. `FNM_LEADING_DIR' lets a pattern like `foo*' match a
1455 name like `foo/bar'. `FNM_CASEFOLD' says to ignore case in matching.
1457 * `mkstemp' is a traditional Unix function to atomically create and open a
1458 uniquely-named temporary file.
1459 \f
1460 Version 1.05
1462 * The standard location for the file that says what the local timezone is
1463 has changed again. It is now `/usr/local/etc/localtime' (or more
1464 precisely, `${prefix}/etc/localtime') rather than `/etc/localtime'.
1466 * The distribution no longer contains any files with names longer than 14
1467 characters.
1469 * `struct ttyent' has two new flag bits: TTY_TRUSTED and TTY_CONSOLE.
1470 These are set by the new `trusted' and `console' keywords in `/etc/ttys'.
1472 * New functions `ttyslot' and `syslog' from 4.4 BSD.
1473 \f
1474 Version 1.04
1476 * The configuration process has changed quite a bit. The `configure'
1477 script is now used just like the configuration scripts for other GNU
1478 packages. The `sysdeps' directory hierarchy is much rearranged.
1479 The file `INSTALL' explains the new scheme in detail.
1481 * The header files no longer need to be processed into ANSI C and
1482 traditional C versions. There is just one set of files to install, and
1483 it will work with ANSI or old C compilers (including `gcc -traditional').
1485 * Brendan Kehoe and Ian Lance Taylor have ported the library to the
1486 MIPS DECStation running Ultrix 4.
1488 * The Sun 4 startup code (crt0) can now properly load SunOS 4 shared libraries.
1489 Tom Quinn contributed the initial code. The GNU C library can NOT yet be
1490 made itself into a shared library.
1492 * Yet further improved support for the i386, running 4.3 BSD-like systems
1493 (such as Mach 3 with the Unix single-server), or System V.
1495 * New function `strncasecmp' to do case-insensitive string comparison
1496 with limited length.
1498 * New function `strsep' is a reentrant alternative to `strtok'.
1500 * New functions `scandir' and `alphasort' for searching directories.
1502 * New function `setenv' is a better interface to `putenv'.
1504 * Ian Lance Taylor has contributed an implementation of the SVID `ftw'
1505 function for traversing a directory tree.
1507 * The GNU obstack package is now also part of the C library.
1508 The new function `open_obstack_stream' creates a stdio stream that
1509 writes onto an obstack; `obstack_printf' and `obstack_vprintf' do
1510 formatted output directly to an obstack.
1512 * Miscellaneous new functions: reboot, nice, sigaltstack (4.4 BSD only),
1513 cfmakeraw, getusershell, getpass, swab, getttyent, seteuid, setegid.
1515 * `FNM_FILE_NAME' is another name for `FNM_PATHNAME', used with `fnmatch'.
1517 * The new functions `strfry' and `memfrob' do mysterious and wonderful
1518 things to your strings.
1520 * There are some new test programs: test-fseek, testmb, and testrand.
1522 * Some work has been done to begin porting the library to 4.4 BSD and Linux.
1523 These ports are not finished, but are a good starting place for really
1524 supporting those systems.
1526 * `/etc/localtime' is now the standard location for the file that says what
1527 the local timezone is, rather than `/usr/local/lib/zoneinfo/localtime'.
1528 This follows the general principle that `/etc' is the place for all local
1529 configuration files.
1531 * The C library header files now use `extern "C"' when used by the C++
1532 compiler, so the C library should now work with C++ code.
1534 * The header file <bstring.h> is gone. <string.h> now declares bcopy,
1535 bcmp, bzero, and ffs. (Update: nowadays these functions are declared
1536 in <strings.h>.)
1538 * Mike Haertel (of GNU e?grep and malloc fame) has written a new sorting
1539 function which uses the `merge sort' algorithm, and is said to be
1540 significantly faster than the old GNU `qsort' function. Merge sort is
1541 now the standard `qsort' function. The new algorithm can require a lot
1542 of temporary storage; so, the old sorting function is called when the
1543 required storage is not available.
1545 * The C library now includes Michael Glad's Ultra Fast Crypt, which
1546 provides the Unix `crypt' function, plus some other entry points.
1548 * The code and header files taken from 4.4 BSD have been updated with the
1549 latest files released from Berkeley.
1550 \f
1551 ----------------------------------------------------------------------
1552 Copyright information:
1554 Copyright (C) 1992-1999,2000,2001,2002,2003,2004,2005,2006
1555 Free Software Foundation, Inc.
1557 Permission is granted to anyone to make or distribute verbatim copies
1558 of this document as received, in any medium, provided that the
1559 copyright notice and this permission notice are preserved,
1560 thus giving the recipient permission to redistribute in turn.
1562 Permission is granted to distribute modified versions
1563 of this document, or of portions of it,
1564 under the above conditions, provided also that they
1565 carry prominent notices stating who last changed them.
1566 \f
1567 Local variables:
1568 version-control: never
1569 End: