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1 GNU C Library NEWS -- history of user-visible changes. 2005-10-22
2 Copyright (C) 1992-2002,2003,2004,2005 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 * It is now possible to install audit libraries for the dynamic linker using
16 LD_AUDIT. Implemented by Ulrich Drepper.
18 * The LinuxThreads add-on, providing pthreads on Linux 2.4 kernels, is no
19 longer supported. The new NPTL implementation requires Linux 2.6 kernels.
20 For a libc and libpthread that works well on Linux 2.4 kernels, we
21 recommend using the stable 2.3 branch.
22 \f
23 Version 2.3.6
25 * The following bugs are resolved with this release:
27 38, 253, 549, 622, 653, 721, 758, 851, 877, 915, 934, 955, 961,
28 1016, 1037, 1076, 1079, 1080, 1081, 1082, 1083, 1084, 1085, 1086,
29 1087, 1088, 1090, 1091, 1092, 1093, 1094, 1095, 1096, 1097, 1098,
30 1099, 1100, 1101, 1102, 1103, 1104, 1105, 1106, 1107, 1108, 1109,
31 1110, 1111, 1112, 1113, 1125, 1137, 1138, 1249, 1250, 1251, 1252,
32 1253, 1254, 1350, 1358, 1394, 1438, 1498, 1534
34 Visit <http://sources.redhat.com/bugzilla/> for the details of each bug.
36 * As of this release, GCC 4 can be used to compile the C Library.
38 * Timezone data updated to 2005m version.
39 \f
40 Version 2.3.5
42 * The following bugs are resolved with this release:
44 284, 592, 602, 626, 633, 640, 650, 661, 671, 681, 693, 700, 710, 719,
45 722, 723, 725, 726, 727, 728, 729, 730, 731, 732, 733, 734, 735, 736,
46 737, 738, 739, 740, 741, 742, 743, 744, 745, 765, 767, 768, 769, 776,
47 777, 787, 821, 822, 823, 825
49 Visit <http://sources.redhat.com/bugzilla/> for the details of each bug.
50 \f
51 Version 2.3.4
53 * Support for RFC 3678. Real implementations exist only for Linux so far.
54 Implemented by Ulrich Drepper.
56 * nscd can now cache entries persistently. Expiring entries are reloaded.
57 For speedups the cache can be shared in memory with client processes.
58 Implemented by Ulrich Drepper.
60 * nscd can now perform SELinux checks.
61 Implemented by Matthew Rickard <mjricka@epoch.ncsc.mil>.
63 * getaddrinfo queries are now cached. Canonical name lookup is performed
64 efficiently.
65 Implemented by Ulrich Drepper.
67 * The nothrow function attribute is used when headers are used by gcc when
68 compiling C code. This can avoid significant amounts of exception
69 handling data.
71 * The malloc functions perform more error checking and are stricter when
72 it comes to reacting on errors. The default action is to terminate
73 the process after showing an error message. Implemented by Ulrich Drepper.
75 * Reverse lookups of IPv6 addresses does not use bit string or .ip6.int
76 lookups anymore unless explicitly requested. Implemented by Ulrich Drepper.
78 * Namespaces in ld.so are implemented. DSOs can be loaded in separate
79 namespaces using the new function dlmopen(). This feature is of course,
80 like most other dynamic loading functionality, not available in statically
81 linked applications. Implemented by Ulrich Drepper.
83 * Low-overhead boundary checking variants of string and some stdio functions
84 were added. These are to be used in conjunction with a gcc patch by
85 Jakub Jelinek which adds calls to these functions if possible.
86 Implemented by Jakub Jelinek and Ulrich Drepper.
88 * Old code for several operating systems and machine architectures that
89 have not been in working condition in a long time have been removed from
90 the main source tree maintained by the GNU C Library's maintainers.
91 These files are now reside in the separate `ports' source module
92 that is usable as an add-on when building the library.
93 \f
94 Version 2.3.3
96 * New functions `dladdr1' and `dlinfo' in <dlfcn.h> provide more ways to
97 interrogate the dynamic linker, compatible with the Solaris interface.
99 * ELF thread-local storage support (TLS) now works on PowerPC and PowerPC64;
100 implemented by Paul Mackerras, Steven Munroe, and Roland McGrath.
102 * getifaddrs now uses the netlink interface on Linux to get its information.
103 Implemented by Thorsten Kukuk.
105 * getaddrinfo now implements AI_V4MAPPED, AI_ALL, and AI_ADDRCONF.
106 Implemented by Ulrich Drepper.
108 * support for non-executable stacks on x86 has been added. Changes mostly
109 by Roland McGrath.
111 * regex is now much faster for multibyte locales. Changes by Jakub Jelinek
112 and Ulrich Drepper.
114 * getaddrinfo now performs destination address selection according to
115 RFC 3484.
116 \f
117 Version 2.3.2
119 * Thread-safe interfaces for many functions that access locale data
120 were added in version 2.3, but these features were omitted from NEWS.
121 Many functions have variants with an `_l' suffix that take a `locale_t'
122 object as a parameter rather than consulting the current locale.
123 The new functions `newlocale', `duplocale', and `freelocale' in <locale.h>
124 create and maintain `locale_t' objects. Additionally, the new function
125 `uselocale' sets "the current locale" (as used by functions not so
126 parameterized) set for an individual thread. These features were added
127 in version 2.3, implemented by Ulrich Drepper and Roland McGrath.
129 * The functions getresuid, getresgid, setresuid, and setresgid, which
130 have long been available on Linux, are now declared in <unistd.h>
131 and are now also available on the Hurd.
133 * ELF thread-local storage support (TLS) now works on x86-64.
135 * The new dynamic string token $LIB is expanded in shared library names.
136 This normally expands to lib, but on some 64-bit platforms to lib64 instead.
138 * Aldy Hernandez contributed complete software floating point support for
139 PowerPC machines with no FPU.
141 * fexecve is implemented on Linux.
143 * The `btowc' function should work at least twice as fast due to
144 specialized callbacks in the iconv modules. Implemented by Bruno Haible.
146 * With approriate thread add-ons cancelable functions are now implemented
147 in libc.so as well. No need to call the function in libpthread. This
148 change allowed to finally disable the incorrect and expensive handling
149 of weak definition in ld.so.
151 * Yet more PLT entries in libc.so have been removed. We finally arrived
152 at the bare minimum. Startup times improved appropriately.
154 * Support for the new Linux/x86 system call interface was added. The
155 AT_SYSINFO auxiliary vector entry is recognized and handled.
156 \f
157 Version 2.3
159 * Masahide Washizawa contributed iconv modules for IBM1163 and IBM1164
160 charsets.
162 * iconv (the program and the interface) now accepts empty names (excluding
163 options like //TRANSLIT) to mean "use charset of current locale".
165 * localedef can now transliterate characters in strings which are not in
166 the provided charmap. The information from the input locale is used.
168 * Prelinking support was added for ELF targets. This requires additional
169 tools and recent versions of the GNU binutils. Contributed by Jakub Jelinek.
171 * Read-only stdio streams now use mmap to speed up operation by eliminating
172 copying and buffer underflows. To use add 'm' to the mode string of
173 the fopen/fdopen/freopen call. Implemented by Ulrich Drepper.
175 * The malloc functions were completely rewritten by Wolfram Gloger based
176 on Doug Lea's malloc-2.7.0.c.
178 * Isamu Hasegawa contributed a completely new and POSIX-conformant
179 implementation of regex.
181 * Bruno Haible upgraded the iconv and locale implementation to support
182 Unicode 3.2.
184 * Contents of the LC_* and LANG environment variables in the CEN style are
185 not recognized anymore. It never was used. Change by Ulrich Drepper.
187 * The runtime (ld.so, libc, libpthread for Linux) now can handle the ELF
188 thread-local storage (TLS) ABI on some platforms.
189 Changes by Ulrich Drepper. SH support by Kaz Kojima.
191 * Bruno Haible contributed iconv converters for ISO-2022-JP-3, SHIFT JIS-X0213,
192 EUC-JISX0213, and TSCII.
194 * New header <ifaddrs.h> with functions `getifaddrs' and `freeifaddrs':
195 BSD-compatible interface for getting all network interface addresses.
196 Implementation for IPv4 by Roland McGrath.
198 * Loading of locale data is faster due to the introduction of a locale
199 archive. Implemented by Roland McGrath and Ulrich Drepper.
201 * Startup times are significantly reduced by not using exported functions
202 inside the library itself. Changes by Jakub Jelinek, Roland McGrath,
203 and Ulrich Drepper.
205 * Steven Munroe contributed a port to PowerPC64/Linux.
206 \f
207 Version 2.2.6
209 * The Hurd now uses the GNU libio implementation of stdio rather than the
210 old GNU stdio implementation, and uses a new ABI (libc.so.0.3).
212 * The Hurd on x86 now has the `ioperm' function and <sys/io.h> header file
213 with the same behavior as the Linux system call of the same name.
214 \f
215 Version 2.2.5
217 * Stephen Moshier implemented log2, log10, powl and cbrtl for the
218 128-bit long double format.
220 * Masahide Washizawa contributed iconv modules for IBM1132, IBM1133, IBM1160,
221 IBM1161, and IBM1162 charsets.
223 * Andreas Jaeger contributed a port to x86-64/Linux.
225 * Peter Bruin contributed a port to PowerPC/Hurd.
227 * libc functions using I/O streams now can handle wide-oriented streams
228 as well.
230 * optimizations in the dynamic linker. Binaries created by recent binutils
231 versions start up quicker due to reduced time spent on relocations.
233 * Support for use of gcc3 added by Jakub Jelinek and HJ Lu.
234 \f
235 Version 2.2.4
237 * Stephen Moshier implemented cosh, expm1, log1p, acos, sinh, tanh,
238 asinh, atanh, j0 for the 128-bit long double format.
240 * Bruno Haible updated all the code handling Unicode in some form to
241 support Unicode 3.1.
243 * Speed of regex for single-byte locales is back to previous levels.
244 Patch by Isamu Hasegawa.
246 * Alpha, SPARC, and IA-64 now also using floating stacks.
248 * Startup time of internationalized applications greatly improved through
249 iconv cache. Use iconvconfig to generate the cache file.
250 Contributed by Ulrich Drepper.
252 * The IA-64 specific part of ld.so was rewritten to eliminate some pretty
253 severe performance problems. Patch by David Mosberger.
255 * The Hurd port got a lot more functionality like AIO, various stdio
256 extensions, etc. Mainly done by Roland McGrath.
258 * mtrace can now lookup symbols in shared libraries.
259 \f
260 Version 2.2.3
262 * Intel's IA-64 math library is largely integrated. It provides fast and
263 accurate implementatations for most basic and standard math functions
264 in float, double, and long double format.
266 * Stephen Moshier implemented j0, j1, jn, y0, y1, yn, lgamma, erf, erfc,
267 and asin for the 96-bit long double format and asin, log, tan for the
268 128-bit long double format.
270 * The beginning of a last-bit accurate math library by IBM Haifa were added.
271 The basic double functions exist today. Contributed by Abraham Ziv
272 <ziv@il.ibm.com>, Moshe Olshansky <olshansk@il.ibm.com>, Ealan Henis
273 <ealan@il.ibm.com>, and Anna Reitman <reitman@il.ibm.com>.
275 * An asynchronous name lookup library was added. The interface is designed
276 after POSIX AIO. The proposal was circulated beforehand to get comments.
277 No negative ones came in. Implemented by Ulrich Drepper.
279 * Port to S390/64bit contributed by Martin Schwidefsky
280 <schwidefsky@de.ibm.com>.
282 * David Mosberger <davidm@hpl.hp.com> implemented the setcontext family
283 of functions for Linux/IA-64.
285 * The RPC code is now thread safe. Threads can now use the same service
286 of different services at the same time. Patch by Eric Norum
287 <eric.norum@usask.ca> with some help by Ulrich Drepper.
289 * Martin Schwidefsky <schwidefsky@de.ibm.com> implemented the setcontext
290 family of functions for Linux/S390.
292 * Ulrich Drepper <drepper@redhat.com> implemented the setcontext family
293 of functions for Linux/x86.
295 * Port to Linux/CRIS contributed by Axis Communications.
296 \f
297 Version 2.2.2
299 * Lots of headers were cleaned up. Using the tool in the conform/ subdir
300 we can now check for namespace violations and missing declarations. The
301 result is that almost all headers are now Unix-compliant (as defined in
302 the upcoming XPG6). The negative side is that some programs might need
303 corrections, too, if they depend on the incorrect form of the headers in
304 previous versions which defined too many symbols and included too many
305 other headers.
307 * regex now handles multibyte character sets correctly.
308 Contributed by Isamu Hasegawa <isamu@yamato.ibm.com>.
310 * iconv (the program) does now conform to the upcoming XPG6 and handles
311 charmaps. Instead of the charset names the path of charmaps can be
312 provided and the conversion happens based on this data.
313 Contributed by Ulrich Drepper.
315 * The locale program now provides detailed information about the installed
316 locales. While
318 locale -a
320 only lists the names of the supported locales
322 locale -a --verbose
324 provides details such as country, language, and codeset name.
325 Contributed by Ulrich Drepper.
326 \f
327 Version 2.2.1
329 * The gencat program now parses the input file according to the charset
330 selected by the LC_CTYPE category. This is important for stateful
331 character sets. To make generating catalogs easier there is a way
332 to overwrite the charset selected by the locale: before the first
333 message or $ quote line the catalog can contain a line like
335 $ codeset=ISO-8859-2
337 to select the charset (ISO-8859-2 in this case).
339 Implemented by Shinya Hanataka and Ulrich Drepper.
341 * New codeset conversion modules: IBM-922 (Estonia PC codeset),
342 IBM-1124 (Ukraine PC codeset), IBM-1129 (Vietnamese PC codeset).
343 Contributed by Masahide Washizawa <washi@jp.ibm.com>.
345 * Optimized string functions for Alpha ev6 and ev67 by Richard Henderson
346 <rth@redhat.com> and Rick Gorton <rick.gorton@alpha-processor.com>.
348 * The LANGUAGE environment variable is now ignored unless the locale is
349 changed from the default "C" locale.
351 * The usual bug fixes.
352 \f
353 Version 2.2
355 * Greg McGary added runtime support for bounds checking using gcc's
356 new -fbounded-pointers option. ix86 target is complete. PowerPC
357 is in progress.
359 * Thorsten Kukuk added secure mode support to nscd.
361 * The Berkeley db libraries have been removed.
363 Related, the nss_db module is now in a separate package since it
364 obviously requires a database library being available.
366 * Wide character I/O streams implemented by Ulrich Drepper.
368 * Functions from the extended socket API added by Ulrich Drepper.
370 * Functions feenableexcept and fedisableexcept to control the
371 behaviour of individual exceptions have been added by Andreas Jaeger.
373 * ldconfig program added by Andreas Jaeger and Jakub Jelinek.
375 * The resolver code has been updated from bind 8.2.3-T5B which supports
376 threads. The integration was done by Andreas Jaeger, Adam D. Bradley,
377 and Mark Kettenis.
379 This change could in some situations effect backward compatibility. Since
380 now `_res' is a thread-local instead of a global variable, modifying it
381 in one thread does not have any effect in other threads.
383 The resolver library was also extended to allow IPv6 as the transport
384 protocol for the requests. This work was done by Stig Venaas.
386 * Compatibility code for K&R C compilers has been removed from the
387 header files. A ISO C compiler is needed to use the library
388 (conforming to either C89 or C99 standard).
390 * Complete rewrite of the localedef program to support multibyte character
391 sets. Implement handling of ISO 14651 and ISO 14652. Rewrite strcoll,
392 strxfrm, wcscoll, and wcsxfrm functions. Make isw*() functions work.
393 Implemented by Ulrich Drepper.
395 Bruno Haible significantly improved the generation and use of the data
396 structures for the wide character tables.
398 * Plural handling in gettext implemented by Ulrich Drepper.
400 * The utmp daemon has been removed.
402 * The port to MIPS-Linux has been finished by Andreas Jaeger.
404 * A port to Hitachi SH3 and SH4 has been contributed by Kazumoto Kojima
405 and Yutaka Niibe.
407 * POSIX clocks and timers implemented by Kaz Kylheku and Ulrich Drepper.
409 * POSIX barriers implemented by Kaz Kylheku.
411 * POSIX spawn function family implemented by Ulrich Drepper.
413 * POSIX spinlocks are now available.
415 * Timed wait functions for mutex, rwlock, and semaphores are implemented.
417 * the configure option --enable-kernel=X.Y.Z allows to strip out
418 compatibility for kernel versions before X.Y.Z. This is currently only
419 implemented for Linux.
421 * the sockaddr_in6 structure changed. The IPv6 working group added a new
422 field sin6_scope_id. This means that all programs using IPv6 should be
423 recompiled. Don't expect binary compatibility with previous glibc
424 versions.
426 * various conversion modules for IBM character sets contributed by
427 Masahide Washizawa.
429 * IA-64 port by Jes Sorensen and HJ Lu.
431 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
432 Compiling the GNU C Library for Linux/ia64
433 ******************************************
435 Please refer to the file INSTALL in the same directory as you found
436 this file for general information about configuring and compiling
437 glibc.
439 For general inquiries about glibc under Linux/ia64 please use the
440 following mailing list linux-ia64@linuxia64.org or one of the relevant
441 glibc mailing lists.
443 Recommended Tools for Compilation
444 =================================
446 In order for glibc-2.2 to build correctly on the ia64 you need at
447 least the following versions of the GNU tools (the :
449 * The Cygnus toolchain snapshot for the ia64 as of August 4
450 including the provided set of patches. It is however recommend
451 you use the October 24 toolchain snapshot or a more recent version.
453 OR alternatively you can try the following (the Cygnus toolchain is
454 the recommended solution):
456 * GCC and binutils, GAS and GNU LD out of CVS from
457 sources.redhat.com as of August 28, 2000 or later. The CVS tree
458 may require special patches to work properly on the ia64.
460 Configuring and compiling GNU Libc for Linux/ia64
461 =================================================
463 The library requires Linux kernel version 2.4.0-test4-000728 or
464 later to funtion properly. Besides that it support for debug libraries
465 is currently untested. Hence the following options
466 are required for configuring the library:
468 --disable-debug --enable-kernel=2.4.0
470 It is also important that you make sure the library picks up the
471 appropriate kernel header files, if you do not have recent enough
472 kernel headers in /usr/src/linux/include, you should use the
473 --with-headers=<path> option to specify the location.
475 As an example I personally use the following options to configure
476 the library:
478 --disable-debug
479 --disable-cvs
480 --enable-kernel=2.4.0
481 --host=ia64-linux
482 --enable-add-ons=yes
483 --prefix=/usr
484 --with-headers=/home/jes/linux/include
487 Good luck
489 Jes Sorensen <jes@linuxcare.com>,
490 November 14th, 2000
491 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
492 \f
493 Version 2.1.3
495 * bug fixes
497 \f
498 Version 2.1.2
500 * bug fixes
502 \f
503 Version 2.1.1
505 * New ISO C 9x function _Exit, imaxabs, and imaxdiv are added.
507 * New xdr functions are added; some rpc functions are now 64bit clean.
509 * Fixed a number of bugs and memory leaks (especially in NIS+ code).
511 * Fixed known incompatibilities with glibc 2.0.
513 * New functions lock64, strchrnul, rawmemchr, getutmp and getutmpx.
515 * Optimized a number of functions (especially the ELF dynamic loader).
517 * Update timezone data files.
519 * lots of charmaps corrections
521 * some new locale definitions and charmaps
523 \f
524 Version 2.1
526 * Richard Henderson corrected size of struct timeval on Linux/Alpha to
527 conform to POSIX member type requirements. Symbol versions have been
528 adjusted as needed within the library, and for direct use by applications,
529 but there is potential for problems if third-party libraries use
530 struct timeval as part of their interface. This does not present
531 a problem for X and other "essential" system libraries.
533 * An additional locale model to support C++ Standard Library locale
534 model and probably more was implemented by Ulrich Drepper.
536 * Eric Youngdale and Ulrich Drepper implemented versioning of objects on
537 symbol level.
539 * Miles Bader provided the `argp' function family to support hierachical
540 command line argument parsing, layered on top of getopt.
542 * strtod accepts new hexadecimal floating-point format from ISO C 9X.
544 * printf has two new specifiers %a and %A to print hexadecimal flaoting-point
545 numbers.
547 * scanf recognizes the %a and %A format for scanning floating point numbers.
549 * the new headers <stdint.h> and <inttypes.h> from ISO C 9X provides
550 information and interfaces for the available integer types.
552 * about 130 new math functions were added to implement the ISO C9x math
553 library.
555 * the new header <complex.h> contains definitions of the complex math
556 functions from ISO C 9X.
558 * the new header <tgmath.h> defines generic macros to use complex or
559 real valued functions.
561 * Thorsten Kukuk provided an implementation for NIS+, securelevel 0, 1 and 2.
563 * Andreas Jaeger provided a test suite for the math library.
565 * Mark Kettenis implemented the utmpx interface and an utmp daemon.
567 * Ulrich Drepper added character set conversion functions (iconv).
569 * Optimized string functions have been added.
571 * The localedata addon is now part of glibc.
573 * An implementation of profiling shared libraries was added by Ulrich Drepper.
575 * Thorsten Kukuk and Ulrich Drepper provided an implementation for a caching
576 daemon for NSS (nscd).
578 Missing a better place here are some numbers on improvements. Under
579 Linux 2.1.125 un-tar-ing the kernel sources takes
581 user system wall
583 using local files 12.19s 6.88s 22.91s
585 using NIS 13.92s 8.91s 26.34s
587 using NIS & nscd 10.37s 7.34s 25.30s
589 using NIS+ 27.57s 30.37s 640.46s
591 using NIS+ & nscd 10.25s 7.83s 26.51s
593 using NIS & old nscd [1] 13.83s 8.32s 29.60s
595 Keep in mind that non-namelookup related operations dominate above times.
596 It was just a common complain that using NIS+ unpacking the kernel is
597 horribly slow.
599 [1] The old nscd implementation is not available anymore since it was
600 distributed with glibc up to version 2.0.98 and thus is now replaced.
602 * Tim Waugh provided an implementation of the POSIX.2 wordexp function family.
604 * Mark Kettenis provided a Hesiod NSS module.
606 * The ELF dynamic loader knows how to process dynamic string tokens ($ORIGIN
607 and $PLATFORM) in RPATHs and similar strings (Ulrich Drepper).
609 * rcmd can now handle netgroups (Dick Streefland).
611 * A port to the ARM was contributed by Phil Blundell, Pat Beirne and Scott
612 Bambrough.
614 * Support for the IPv6 protocol has been added to the socket API, as per the
615 latest draft standards.
617 * Support for Linux 2.2 has been added.
619 * Interface changes relative to the latest 2.0.x release:
620 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
621 addseverity NEW: Unix98
622 alphasort64 NEW: LFS
623 argp_err_exit_status NEW: argp, GNU ext
624 argp_error NEW: argp, GNU ext
625 argp_failure NEW: argp, GNU ext
626 argp_help NEW: argp, GNU ext
627 argp_parse NEW: argp, GNU ext
628 argp_program_bug_address NEW: argp, GNU ext
629 argp_program_version NEW: argp, GNU ext
630 argp_program_version_hook NEW: argp, GNU ext
631 argp_state_help NEW: argp, GNU ext
632 argp_usage NEW: argp, GNU ext
633 authdes_create NEW: Secure RPC
634 authdes_getucred NEW: Secure RPC
635 authdes_pk_create NEW: Secure RPC
636 backtrace NEW: GNU ext.
637 backtrace_symbols NEW: GNU ext.
638 backtrace_symbols_fd NEW: GNU ext.
639 cacos NEW: ISO C 9x
640 cacosf NEW: ISO C 9x
641 cacosh NEW: ISO C 9x
642 cacoshf NEW: ISO C 9x
643 cacoshl NEW: ISO C 9x
644 cacosl NEW: ISO C 9x
645 capget NEW: kernel
646 capset NEW: kernel
647 carg NEW: ISO C 9x
648 cargf NEW: ISO C 9x
649 cargl NEW: ISO C 9x
650 casin NEW: ISO C 9x
651 casinf NEW: ISO C 9x
652 casinh NEW: ISO C 9x
653 casinhf NEW: ISO C 9x
654 casinhl NEW: ISO C 9x
655 casinl NEW: ISO C 9x
656 catan NEW: ISO C 9x
657 catanf NEW: ISO C 9x
658 catanh NEW: ISO C 9x
659 catanhf NEW: ISO C 9x
660 catanhl NEW: ISO C 9x
661 catanl NEW: ISO C 9x
662 cbc_crypt NEW: Secure RPC
663 ccos NEW: ISO C 9x
664 ccosf NEW: ISO C 9x
665 ccosh NEW: ISO C 9x
666 ccoshf NEW: ISO C 9x
667 ccoshl NEW: ISO C 9x
668 ccosl NEW: ISO C 9x
669 cexp NEW: ISO C 9x
670 cexpf NEW: ISO C 9x
671 cexpl NEW: ISO C 9x
672 cimag NEW: ISO C 9x
673 cimagf NEW: ISO C 9x
674 cimagl NEW: ISO C 9x
675 clearerr_locked REMOVED
676 clntunix_create NEW: sunrpc ext
677 clog NEW: ISO C 9x
678 clog10 NEW: ISO C 9x
679 clog10f NEW: ISO C 9x
680 clog10l NEW: ISO C 9x
681 clogf NEW: ISO C 9x
682 clogl NEW: ISO C 9x
683 conj NEW: ISO C 9x
684 conjf NEW: ISO C 9x
685 conjl NEW: ISO C 9x
686 cpow NEW: ISO C 9x
687 cpowf NEW: ISO C 9x
688 cpowl NEW: ISO C 9x
689 cproj NEW: ISO C 9x
690 cprojf NEW: ISO C 9x
691 cprojl NEW: ISO C 9x
692 creal NEW: ISO C 9x
693 crealf NEW: ISO C 9x
694 creall NEW: ISO C 9x
695 creat64 NEW: LFS
696 csin NEW: ISO C 9x
697 csinf NEW: ISO C 9x
698 csinh NEW: ISO C 9x
699 csinhf NEW: ISO C 9x
700 csinhl NEW: ISO C 9x
701 csinl NEW: ISO C 9x
702 csqrt NEW: ISO C 9x
703 csqrtf NEW: ISO C 9x
704 csqrtl NEW: ISO C 9x
705 ctan NEW: ISO C 9x
706 ctanf NEW: ISO C 9x
707 ctanh NEW: ISO C 9x
708 ctanhf NEW: ISO C 9x
709 ctanhl NEW: ISO C 9x
710 ctanl NEW: ISO C 9x
711 des_setparity NEW: Secure RPC
712 ecb_crypt NEW: Secure RPC
713 endutxent NEW: Unix98
714 exp10 NEW: ISO C 9x
715 exp10f NEW: ISO C 9x
716 exp10l NEW: ISO C 9x
717 exp2 NEW: ISO C 9x
718 exp2f NEW: ISO C 9x
719 exp2l NEW: ISO C 9x
720 fattach NEW: STREAMS
721 fdetach NEW: STREAMS
722 fdim NEW: ISO C 9x
723 fdimf NEW: ISO C 9x
724 fdiml NEW: ISO C 9x
725 feclearexcept NEW: ISO C 9x
726 fegetenv NEW: ISO C 9x
727 fegetexceptflag NEW: ISO C 9x
728 fegetround NEW: ISO C 9x
729 feholdexcept NEW: ISO C 9x
730 feof_locked REMOVED
731 feraiseexcept NEW: ISO C 9x
732 ferror_locked REMOVED
733 fesetenv NEW: ISO C 9x
734 fesetexceptflag NEW: ISO C 9x
735 fesetround NEW: ISO C 9x
736 fetestexcept NEW: ISO C 9x
737 feupdateenv NEW: ISO C 9x
738 fflush_locked REMOVED
739 ffsl NEW: GNU ext.
740 ffsll NEW: GNU ext.
741 fgetpos64 NEW: LFS
742 fgets_unlocked NEW: GNU ext.
743 fileno_locked REMOVED
744 fma NEW: ISO C 9x
745 fmaf NEW: ISO C 9x
746 fmal NEW: ISO C 9x
747 fmax NEW: ISO C 9x
748 fmaxf NEW: ISO C 9x
749 fmaxl NEW: ISO C 9x
750 fmin NEW: ISO C 9x
751 fminf NEW: ISO C 9x
752 fminl NEW: ISO C 9x
753 fmtmsg NEW: Unix98
754 fopen64 NEW: LFS
755 fputc_locked REMOVED
756 fputs_unlocked NEW: GNU ext.
757 fread_unlocked NEW: GNU ext.
758 freopen64 NEW: LFS
759 fseeko NEW: Unix98
760 fsetpos64 NEW: LFS
761 fstatfs64 NEW: LFS
762 fstatvfs NEW: Unix98
763 fstatvfs64 NEW: LFS
764 ftello NEW: Unix98
765 ftello64 NEW: LFS
766 ftruncate64 NEW: LFS
767 ftw64 NEW: LFS
768 fwrite_unlocked NEW: GNU ext.
769 gai_strerror NEW: IPv6
770 gamma_r REMOVED
771 gammaf_r REMOVED
772 gammal_r REMOVED
773 getchar_locked REMOVED
774 getdate NEW: Unix98
775 getdate_err NEW: Unix98
776 getdate_r NEW: GNU ext.
777 getmsg NEW: STREAMS
778 getnameinfo NEW: IPv6
779 getnetname NEW: Secure RPC
780 getpmsg NEW: STREAMS
781 getpt NEW: Unix98 PTY
782 getrlimit64 NEW: LFS
783 getutxent NEW: Unix98
784 getutxid NEW: Unix98
785 getutxline NEW: Unix98
786 glob64 NEW: GNU ext.
787 globfree64 NEW: GNU ext.
788 gnu_get_libc_release NEW: GNU ext.
789 gnu_get_libc_version NEW: GNU ext.
790 grantpt NEW: Unix98 PTY
791 host2netname NEW: Secure RPC
792 iconv NEW: iconv
793 iconv_close NEW: iconv
794 iconv_open NEW: iconv
795 if_freenameindex NEW: IPv6
796 if_indextoname NEW: IPv6
797 if_nameindex NEW: IPv6
798 if_nametoindex NEW: IPv6
799 in6addr_any NEW: IPv6
800 in6addr_loopback NEW: IPv6
801 inet6_isipv4mapped NEW: IPv6
802 isastream NEW: STREAMS
803 iswblank NEW: GNU ext.
804 key_decryptsession NEW: Secure RPC
805 key_decryptsession_pk NEW: Secure RPC
806 key_encryptsession NEW: Secure RPC
807 key_encryptsession_pk NEW: Secure RPC
808 key_gendes NEW: Secure RPC
809 key_get_conv NEW: Secure RPC
810 key_secretkey_is_set NEW: Secure RPC
811 key_setnet NEW: Secure RPC
812 key_setsecret NEW: Secure RPC
813 llrint NEW: ISO C 9x
814 llrintf NEW: ISO C 9x
815 llrintl NEW: ISO C 9x
816 llround NEW: ISO C 9x
817 llroundf NEW: ISO C 9x
818 llroundl NEW: ISO C 9x
819 log2 NEW: ISO C 9x
820 log2f NEW: ISO C 9x
821 log2l NEW: ISO C 9x
822 lrint NEW: ISO C 9x
823 lrintf NEW: ISO C 9x
824 lrintl NEW: ISO C 9x
825 lround NEW: ISO C 9x
826 lroundf NEW: ISO C 9x
827 lroundl NEW: ISO C 9x
828 lseek64 NEW: LFS
829 makecontext NEW: Unix98
830 mempcpy NEW: GNU ext.
831 mmap64 NEW: LFS
832 moncontrol REMOVED
833 modify_ldt NEW: kernel
834 nan NEW: ISO C 9x
835 nanf NEW: ISO C 9x
836 nanl NEW: ISO C 9x
837 nearbyint NEW: ISO C 9x
838 nearbyintf NEW: ISO C 9x
839 nearbyintl NEW: ISO C 9x
840 netname2host NEW: Secure RPC
841 netname2user NEW: Secure RPC
842 nexttoward NEW: ISO C 9x
843 nexttowardf NEW: ISO C 9x
844 nexttowardl NEW: ISO C 9x
845 nftw NEW: Unix98
846 nftw64 NEW: LFS
847 open64 NEW: LFS
848 passwd2des NEW: Secure RPC
849 pow10 NEW: GNU ext.
850 pow10f NEW: GNU ext.
851 pow10l NEW: GNU ext.
852 pread NEW: Unix98
853 pread64 NEW: LFS
854 printf_size NEW: GNU ext.
855 printf_size_info NEW: GNU ext.
856 profil_counter REMOVED
857 pthread_mutexattr_getkind_np REPLACED
858 pthread_mutexattr_setkind_np REPLACED
859 ptsname NEW: Unix98 PTY
860 ptsname_r NEW: Unix98 PTY
861 putc_locked REMOVED
862 putchar_locked REMOVED
863 putgrent NEW: GNU ext.
864 putmsg NEW: STREAMS
865 putpmsg NEW: STREAMS
866 pututxline NEW: Unix98
867 pwrite NEW: Unix98
868 pwrite64 NEW: LFS
869 readdir64 NEW: LFS
870 readdir64_r NEW: LFS
871 remquo NEW: ISO C 9x
872 remquof NEW: ISO C 9x
873 remquol NEW: ISO C 9x
874 round NEW: ISO C 9x
875 roundf NEW: ISO C 9x
876 roundl NEW: ISO C 9x
877 rtime NEW: GNU ext.
878 scalbln NEW: ISO C 9x
879 scalblnf NEW: ISO C 9x
880 scalblnl NEW: ISO C 9x
881 scandir64 NEW: LFS
882 sendfile NEW: kernel
883 setcontext NEW: Unix98
884 setrlimit64 NEW: LFS
885 setutxent NEW: Unix98
886 sighold NEW: Unix98
887 sigignore NEW: Unix98
888 sigqueue NEW: POSIX.1b
889 sigrelse NEW: Unix98
890 sigset NEW: POSIX.1b
891 sigtimedwait NEW: POSIX.1b
892 sigwaitinfo NEW: POSIX.1b
893 sincos NEW: GNU ext.
894 sincosf NEW: GNU ext.
895 sincosl NEW: GNU ext.
896 statfs64 NEW: LFS
897 statvfs NEW: Unix98
898 statvfs64 NEW: LFS
899 strcasestr NEW: GNU ext.
900 strtoimax NEW: ISO C 9x
901 strtoumax NEW: ISO C 9x
902 strverscmp NEW: GNU ext.
903 svcauthdes_stats NEW: Secure RPC
904 svcunix_create NEW: sunrpc etx
905 svcunixfd_create NEW: sunrpc ext
906 swapcontext NEW: Unix98
907 tcgetsid NEW: Unix98 PTY
908 tdestroy NEW: GNU ext.
909 tgamma NEW: ISO C 9x
910 tgammaf NEW: ISO C 9x
911 tgammal NEW: ISO C 9x
912 tmpfile64 NEW: LFS
913 trunc NEW: ISO C 9x
914 truncate64 NEW: LFS
915 truncf NEW: ISO C 9x
916 truncl NEW: ISO C 9x
917 umount2 NEW: kernel
918 unlockpt NEW: Unix98 PTY
919 updwtmpx NEW: Unix98
920 user2netname NEW: Secure RPC
921 utmpxname NEW: Unix98
922 versionsort NEW: GNU ext.
923 versionsort64 NEW: GNU ext.
924 waitid NEW: Unix98
925 wcscasecmp NEW: GNU ext.
926 wcsncasecmp NEW: GNU ext.
927 wcsnlen NEW: GNU ext.
928 wcstoimax NEW: ISO C 9x
929 wcstoll NEW: ISO C 9x
930 wcstoull NEW: ISO C 9x
931 wcstoumax NEW: ISO C 9x
932 wcswcs NEW: Unix98
933 wordexp NEW: POSIX.2
934 wordfree NEW: POSIX.2
935 write_profiling REMOVED
936 xdecrypt NEW: Secure RPC
937 xdr_authdes_cred NEW: Secure RPC
938 xdr_authdes_verf NEW: Secure RPC
939 xdr_cryptkeyarg NEW: Secure RPC
940 xdr_cryptkeyarg2 NEW: Secure RPC
941 xdr_cryptkeyres NEW: Secure RPC
942 xdr_getcredres NEW: Secure RPC
943 xdr_key_netstarg NEW: Secure RPC
944 xdr_key_netstres NEW: Secure RPC
945 xdr_keybuf NEW: Secure RPC
946 xdr_keystatus NEW: Secure RPC
947 xdr_netnamestr NEW: Secure RPC
948 xdr_sizeof NEW: Secure RPC
949 xdr_unixcred NEW: sunrpc ext
950 xencrypt NEW: Secure RPC
951 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
952 \f
953 Version 2.0.6
955 * more bug fixes
957 \f
958 Version 2.0.5
960 * more bug fixes
962 * inet_ntoa is thread-safe
964 * updwtmp is moved from libutil to libc
966 * rewrite of cbrt function
968 * update of timezone data
969 \f
970 Version 2.0.4
972 * more bug fixes
973 \f
974 Version 2.0.3
976 * more bug fixes
977 \f
978 Version 2.0.2
980 * more bug fixes
982 * add atoll function
984 * fix complex problems in Berkeley DB code
986 * fix math functions
987 \f
988 Version 2.0.1
990 * fixed lots of header problems (especially Linux/GNU specific)
992 * dynamic loader preserves all registers
994 * Roland McGrath provided support for handling of auxiliary objects in
995 the ELF dynamic loader.
997 * support for parallel builds is improved
998 \f
999 Version 2.0
1001 * GNU extensions are no longer declared by default. To enable them you
1002 must define the macro `_GNU_SOURCE' in your program or compile with
1003 `-D_GNU_SOURCE'.
1005 * The library has changed from using GNU ld symbol aliases to using weak
1006 symbols where available. The ELF object file format supports weak
1007 symbols; GNU ld also supports weak symbols in the a.out format. (There
1008 is also now support for other GNU ld extensions in ELF. Use the
1009 `--with-elf' option to configure to indicate you have ELF, and
1010 `--with-gnu-ld' if using GNU ld.) This change resulted in the deletion
1011 of many files which contained only symbol aliases, reducing the size of
1012 the source and the compiled library; many other files were renamed to
1013 less cryptic names previously occupied by the symbol alias files.
1014 There is a new header file <elf.h> for programs which operate on
1015 files in the ELF format.
1017 * Converted to Autoconf version 2, so `configure' has more options.
1018 Run `configure --help' to see the details.
1020 * The library can now be configured to build profiling, highly-optimized
1021 (but undebuggable), and/or shared libraries (ELF with GNU ld only). The
1022 `--enable-profile', `--enable-omitfp', and `--enable-shared' options to
1023 `configure' enable building these extra libraries. The shared library is
1024 built by default when using both ELF and GNU ld. When shared libraries
1025 are enabled, the new library `-ldl' is available for arbitrary run-time
1026 loading of shared objects; its interface is defined in <dlfcn.h>. The
1027 new header file <link.h> gives access to the internals of the run-time
1028 dynamic linker, `ld.so'. The shell script `ldd' is similar to the
1029 application of same name on other systems and it provides information
1030 about dynamically linked binaries.
1032 * The C library now provides the run-time support code for profiling
1033 executables compiled with `-pg'. Programs can control the profiling code
1034 through the interface in <sys/gmon.h>. The `gmon.out' files written by
1035 the GNU C library can be read only by GNU `gprof' (from GNU binutils);
1036 the support for this file format was contributed by David Mosberger-Tang.
1038 * The math code has been replaced with a math library based on fdlibm from
1039 Sun, and modified by JT Conklin and Ulrich Drepper with i387 support, by
1040 Ian Taylor with `float' functions and by Ulrich Drepper with `long double'
1041 functions. The math functions now reside in a separate library, so
1042 programs using them will need to use `-lm' their linking commands.
1044 * John C. Bowman contributed optimized ix87 assembler inline functions.
1046 * Ulrich Drepper has contributed support for an `/etc/nsswitch.conf'
1047 mechanism similar to that found in Solaris 2. This is now used for the
1048 group, passwd, hosts, networks, services, protocols, rpc, ethers,
1049 shadow, netgroup, publickey, and alias databases. The `nsswitch.conf'
1050 file controls what services are used for each individual database. This
1051 works by loading shared libraries with names specified in `nsswitch.conf',
1052 so service modules can be changed or added at any time without even
1053 relinking any program. Currently there are the file, db, and NIS based
1054 NSS services available.
1056 * The new functions `strtoq' and `strtouq' parse integer values from
1057 strings, like `strtol' and `strtoul', but they return `long long int' and
1058 `unsigned long long int' values, respectively (64-bit quantities).
1060 * The new functions `strtof' and `strtold' parse floating-point values from
1061 strings, like `strtod', but they return `float' and `long double' values,
1062 respectively (on some machines `double' and `long double' are the same).
1064 * Ulrich Drepper has contributed new implementations of the floating-point
1065 printing and reading code used in the `printf' family of functions and
1066 `strtod', `strtof', and `strtold'. These new functions are perfectly
1067 accurate, and much faster than the old ones.
1069 * The implementation of the POSIX locale model was completely rewritten by
1070 Ulrich Drepper. This includes the new programs `localedef' and `locale'
1071 to compile the POSIX locale definition.
1073 * The former dummy implementations of the strcoll and strxfrm function are
1074 now replaced by fully functional code contributed by Ulrich Drepper. The
1075 collation information comes from the POSIX locale definitions.
1077 * The new header <langinfo.h> defines an interface for accessing
1078 various locale-dependent data (using the locale chosen with `setlocale').
1080 * Ulrich Drepper has contributed a new suite of functions for operation on
1081 wide-character and multibyte-character strings, in <wchar.h>;
1082 and classification and case conversion of wide characters, in <wctype.h>.
1083 These new functions are conforming to the ISO C, Amendement 1 specification.
1085 * There is now a second implementation of the standard I/O library available.
1086 It comes from GNU libg++ as was written by Per Bothner, heavily modified
1087 by Hongjiu Lu and made thread safe by Ulrich Drepper.
1089 * You can now use positional parameter specifications in format strings
1090 for the `printf' and `scanf' families of functions. For example,
1091 `printf ("Number %2$d, Mr %1$s\n", "Jones", 6);'' prints
1092 ``Number 6, Mr Jones''. This is mainly useful when providing different
1093 format strings for different languages, whose grammars may dictate
1094 different orderings of the values being printed. To support this
1095 feature, the interface for `register_printf_handler' has changed; see
1096 the header file <printf.h> for details.
1098 * The `printf' and `scanf' families of functions now understand a new
1099 formatting flag for numeric conversions: the ' flag (e.g. %'d or %'f) says
1100 to group numbers as indicated by the locale; for `scanf' and friends, this
1101 says to accept as valid only a number with all the proper grouping
1102 separators in the right places. In the default "C" locale, numbers are
1103 not grouped; but locales for specific countries will define the usual
1104 conventions (i.e. separate thousands with `,' in the US locale).
1106 * The pgrp functions have been regularized, slightly incompatibly but much
1107 less confusingly. The core functions are now `getpgid' and `setpgid',
1108 which take arguments for the PID to operate on; the POSIX.1 `getpgrp' (no
1109 argument) and BSD `setpgrp' (identical to `setpgid') functions are
1110 provided for compatibility. There is no longer an incompatible `getpgrp'
1111 with an argument declared under _BSD_SOURCE; no BSD code uses it.
1113 * The new header file <fts.h> and suite of functions simplify programs that
1114 operate on directory trees. This code comes from 4.4 BSD.
1116 * The resolver code has been updated from the BIND 4.9.5-P1 release.
1117 Parts of the code were heavily modified by Ulrich Drepper to fit in the
1118 NSS scheme used in glibc.
1120 * There is a new malloc debugging hook `__memalign_hook'.
1122 * There are new typedefs `ushort' for `unsigned short int' and `uint' for
1123 `unsigned int' in <sys/types.h>. These are for compatibility only and
1124 their use is discouraged.
1126 * The `-lmcheck' library to enable standard malloc debugging hooks is now
1127 done differently, so that it works even without GNU ld.
1129 * New function `euidaccess' checks allowed access to a file like `access',
1130 but using the effective IDs instead of the real IDs.
1132 * The time zone data files have been updated for the latest and greatest
1133 local time conventions of the countries of the world.
1135 * The new function `dirfd' extracts the file descriptor used by a DIR stream;
1136 see <dirent.h>.
1138 * The new functions `ecvt', `fcvt', and `gcvt' provide an obsolete interface
1139 for formatting floating-point numbers. They are provided only for
1140 compatibility; new programs should use `sprintf' instead. There are
1141 also equivalent function for the `long double' floating-point type and
1142 all functions also exist in a reentrant form.
1144 * The new auxiliary library `-lutil' from 4.4 BSD contains various
1145 functions for maintaining the login-record files (primarily of use to
1146 system programs such as `login'), and convenient functions for
1147 allocating and initializing a pseudo-terminal (pty) device.
1149 * Ulrich Drepper has contributed new support for System V style
1150 shared memory and IPC on systems that support it.
1152 * Ulrich Drepper has contributed several miscellaneous new functions found
1153 in System V: The `hsearch' family of functions provide an effective
1154 implementation of hash tables; `a64l' and `l64a' provide a very simple
1155 binary to ASCII mapping; `drand48' and friends provide a 48-bit random
1156 number generator.
1158 * Ulrich Drepper has contributed new reentrant counterparts for the
1159 `random' and `hsearch' families of functions; `random_r', `hsearch_r', etc.
1161 * Ulrich Drepper has contributed new, highly-optimized versions of several
1162 string functions for the i486/Pentium family of processors.
1164 * Ulrich Drepper has updated the Linux-specific code, based largely
1165 on work done in Hongjiu Lu's version of GNU libc for Linux.
1166 The GNU library now supports Linux versions 2.0.10 and later,
1167 using the ELF object file format (i[3456]86-*-linux).
1169 * Andreas Schwab has ported the C library to Linux/m68k (m68k-*-linux).
1171 * David Mosberger-Tang and Richard Henderson have ported the C library
1172 to Linux/Alpha (alpha-*-linux). Richard Henderson contributed the
1173 dynamic linking support for ELF/Alpha.
1175 * Richard Henderson contributed several Alpha optimized assembler function
1176 for arithmetic and string handling.
1178 * Ulrich Drepper has contributed a new set of message catalog functions to
1179 support multiple languages using the <libintl.h> interface, for use with
1180 his new package GNU gettext. Translation volunteers have contributed
1181 catalogs of the library's messages in Spanish, German, and Korean.
1183 * For compatibility with XPG4, Ulrich Drepper has contributed the `gencat'
1184 program and the `catgets' function for reading the catalog files it
1185 creates. (The <libintl.h> interface is preferred; we include the
1186 <nl_types.h> interface using `catgets' only for source compatibility with
1187 programs already written to use it.)
1189 * New header file <values.h> gives SVID-compatible names for <limits.h>
1190 constants.
1192 * Various new macros, declarations, and small header files for compatibility
1193 with 4.4 BSD.
1195 * New function `group_member' is a convenient way to check if a process has
1196 a given effective group ID.
1198 * When using GCC 2.7 and later, the socket functions are now declared in a
1199 special way so that passing an argument of type `struct sockaddr_in *',
1200 `struct sockaddr_ns *', or `struct sockaddr_un *' instead of the generic
1201 `struct sockaddr *' type, does not generate a type-clash warning.
1203 * New function `error' declared in header file <error.h> is a convenient
1204 function for printing error messages and optionally exiting; this is the
1205 canonical function used in GNU programs. The new functions `err', `warn',
1206 and friends in header file <err.h> are the canonical 4.4 BSD interface for
1207 doing the same thing.
1209 * The <glob.h> interface has several new flags from 4.4 BSD that extend the
1210 POSIX.2 `glob' function to do ~ and {...} expansion.
1212 * New function `unsetenv' complements `setenv' for compatibility with 4.4 BSD.
1213 `clearenv' which is used in POSIX.9 is also available.
1215 * New function `getsid' returns session ID number on systems that support it.
1217 * We have incorporated the 4.4 BSD `db' library (version 1.85). New header
1218 files <db.h> and <mpool.h> provide a rich set of functions for several
1219 types of simple databases stored in memory and in files, and <ndbm.h> is
1220 an old `ndbm'-compatible interface using the `db' functions. Link with
1221 `-ldb' to get these functions.
1223 * New macro `strdupa' copies a string like `strdup', but uses local stack
1224 space from `alloca' instead of dynamic heap space from `malloc'.
1226 * New function `strnlen' is like `strlen' but searches only a given maximum
1227 number of characters for the null terminator. `stpncpy', `strndup' and
1228 `strndupa' are similar variants for the `stpcpy', `strdup' and `strdupa'
1229 function.
1231 * New function `statfs' in header <sys/statfs.h>.
1233 * The new <argz.h> and <envz.h> interfaces contributed by Miles Bader
1234 provide convenient functions for operating on blocks of null-terminated
1235 strings.
1237 * A new suite of functions in <utmp.h> handle all the details of reading
1238 and writing the utmp file.
1240 * An implementation of the NIS/YP(tm) based NSS service was contributed by
1241 Thorsten Kukuk.
1243 * Paul Eggert and Ulrich Drepper modified the `strftime' function to be
1244 completely POSIX compliant and also implemented the extended functionality
1245 to handle alternate digit representation and alternate era date formats.
1247 * Ulrich Drepper provided an implementation of the `strptime' function
1248 defined in XPG4.2 which transforms a string into a `struct tm' value.
1250 * Paul Eggert provided the tzselect shell script as part of the timezone
1251 code. The shell script makes it easy to select the correct timezone
1252 specification.
1254 * The implementation of the malloc family of functions is completely replaced
1255 by a new implementation by Doug Lea with many improvements by Wolfram Gloger.
1256 The implementation uses the mmap function (if available) and it is
1257 optimized for the use in multi threaded programs.
1259 * Ulrich Drepper contributed a MD5 "encryption" for the crypt family of
1260 functions. This new functionality is usable by specifying a special
1261 salt string and it is compatible with implementation on *BSD systems.
1263 * Lots of functions from the XPG4.2 standard were added by Ulrich Drepper:
1264 `getsubopt' to handle second level command line options, `bsd_signal'
1265 to access BSD style `signal' functionality, the obsolete `regexp' style
1266 expression matcher.
1268 * the `lchown' function is available on system which support this
1269 functionality.
1271 * The implementation of the shadow password handling function was contributed
1272 by Ulrich Drepper.
1274 * David Mosberger-Tang changed the SunRPC implementation to be 64bit safe.
1276 * POSIX.1g support was added. The <sys/select.h> header is available,
1277 `isfdtype' and `pselect' are implemented. Craig Metz contributed an
1278 implementation of `getaddrinfo'.
1279 \f
1280 Version 1.09
1282 * For cross-compilation you should now set `BUILD_CC' instead of `HOST_CC'.
1284 * New header file <fstab.h> and new functions `getfsspec', `getfsent' and
1285 friends, for parsing /etc/fstab. This code comes from 4.4 BSD.
1287 * The new function `daemon' from 4.4 BSD is useful for server programs that
1288 want to put themselves in the background.
1290 * Joel Sherrill has contributed support for several standalone boards that
1291 run without an operating system.
1293 * `printf', `scanf' and friends now accept a `q' type modifier for long
1294 long int as well as `ll'. Formats using these might be `%qu' or `%lld'.
1296 * All of the code taken from BSD (notably most of the math and networking
1297 routines) has been updated from the BSD 4.4-Lite release.
1299 * The resolver code has been updated from the BIND-4.9.3-BETA9 release.
1301 * The new functions `getdomainname' and `setdomainname' fetch or change the
1302 YP/NIS domain name. These are system calls which exist on systems which
1303 have YP (aka NIS).
1305 * The time zone data files have been updated for the latest international
1306 conventions.
1308 * The SunRPC programs `portmap' and `rpcinfo' are now installed in
1309 $(sbindir) (usually /usr/local/sbin) instead of $(bindir).
1310 \f
1311 Version 1.08
1313 * The C library now includes support for Sun RPC, from Sun's free
1314 RPCSRC-4.0 distribution. The `portmap', `rpcinfo', and `rpcgen' programs
1315 are included. (There is still no support for YP.)
1317 * Tom Quinn has contributed a port of the C library to SGI machines running
1318 Irix 4 (mips-sgi-irix4).
1320 * The new `lockf' function is a simplified interface to the locking
1321 facilities of `fcntl', included for compatibility.
1323 * New time functions `timegm', `timelocal', and `dysize' for compatibility.
1325 * New header file <sys/timeb.h> and new function `ftime' for compatibility.
1327 * New header files <poll.h> and <sys/poll.h> and new function `poll' for
1328 compatibility.
1330 * The error message printed by `assert' for a failed assertion now includes
1331 the name of the program (if using GNU ld) and the name of the calling
1332 function (with versions of GCC that support this).
1334 * The `psignal' function is now declared in <signal.h>, not <stdio.h>.
1336 * The library now includes the <sys/mman.h> header file and memory
1337 management functions `mmap', `munmap', `mprotect', `msync', and
1338 `madvise', on systems that support those facilities.
1340 * The interface for `mcheck' has changed slightly: the function called to
1341 abort the program when an allocation inconsistency is detected now takes
1342 an argument that indicates the type of failure. The new function
1343 `mprobe' lets you request a consistency check for a particular block at
1344 any time (checks are normally done only when you call `free' or `realloc'
1345 on a block).
1347 * It is now possible to easily cross-compile the C library, building on one
1348 system a library to run on another machine and/or operating system. All
1349 you need to do is set the variable `HOST_CC' in `configparms' to the
1350 native compiler for programs to run on the machine you are building on (a
1351 few generator programs are used on Unix systems); set `CC' to the
1352 cross-compiler.
1354 * The new function `fexecve' (only implemented on the GNU system) executes
1355 a program file given a file descriptor already open on the file.
1356 \f
1357 Version 1.07
1359 * Brendan Kehoe has contributed most of a port to the DEC Alpha
1360 running OSF/1 (alpha-dec-osf1). He says it is 75% complete.
1362 * You can set the variable `libprefix' in `configparms' to specify a prefix
1363 to be prepended to installed library files; this makes it easy to install
1364 the GNU C library to be linked as `-lgnuc' or whatever.
1366 * The new `stpncpy' is a cross between `stpcpy' and `strncpy': It
1367 copies a limited number of characters from a string, and returns the
1368 address of the last character written.
1370 * You no longer need to check for whether the installed `stddef.h' is
1371 compatible with the GNU C library. configure now checks for you.
1373 * You can now define a per-stream `fileno' function to convert the
1374 stream's cookie into an integral file descriptor.
1376 * ``malloc (0)'' no longer returns a null pointer. Instead, it
1377 allocates zero bytes of storage, and returns a unique pointer which
1378 you can pass to `realloc' or `free'. The behavior is undefined if
1379 you dereference this pointer.
1381 * The C library now runs on Sony NEWS m68k machines running either
1382 NewsOS 3 or NewsOS 4.
1384 * The new `syscall' function is a system-dependent primitive function
1385 for invoking system calls. It has the canonical behavior on Unix
1386 systems, including unreliable return values for some calls (such as
1387 `pipe', `fork' and `getppid').
1389 * The error code `EWOULDBLOCK' is now obsolete; it is always defined
1390 to `EAGAIN', which is the preferred name. On systems whose kernels
1391 use two distinct codes, the C library now translates EWOULDBLOCK to
1392 EAGAIN in every system call function.
1393 \f
1394 Version 1.06
1396 * The GNU C Library Reference Manual is now distributed with the library.
1397 `make dvi' will produce a DVI file of the printed manual.
1398 `make info' will produce Info files that you can read on line using C-h i
1399 in Emacs or the `info' program.
1400 Please send comments on the manual to bug-glibc-manual@gnu.org.
1402 * The library now supports SVR4 on i386s (i386-unknown-sysv4).
1404 * Brendan Kehoe has contributed a port to Sun SPARCs running Solaris 2.
1406 * Jason Merrill has contributed a port to the Sequent Symmetry running
1407 Dynix version 3 (i386-sequent-dynix).
1409 * The library has been ported to i386s running SCO 3.2.4 (also known as SCO
1410 ODT 2.0; i386-unknown-sco3.2.4) or SCO 3.2 (i386-unknown-sco3.2).
1412 * New function `memory_warnings' lets you arrange to get warnings when
1413 malloc is running out of memory to allocate, like Emacs gives you.
1415 * The C library now contains the relocating allocator used in Emacs 19 for
1416 its editing buffers. This allocator (ralloc) minimizes allocation
1417 overhead and fragmentation by moving allocated regions around whenever it
1418 needs to. You always refer to a ralloc'd region with a "handle" (a
1419 pointer to a pointer--an object of type `void **').
1421 * There is a new `printf' format: `%m' gives you the string corresponding
1422 to the error code in `errno'.
1424 * In `scanf' formats, you can now use `%as' or `%a[' to do the normal `%s'
1425 or `%[' conversion, but instead of filling in a fixed-sized buffer you
1426 pass, the `a' modifier says to fill in a `char **' you pass with a
1427 malloc'd string.
1429 * The `fnmatch' function supports the new flag bits `FNM_LEADING_DIR' and
1430 `FNM_CASEFOLD'. `FNM_LEADING_DIR' lets a pattern like `foo*' match a
1431 name like `foo/bar'. `FNM_CASEFOLD' says to ignore case in matching.
1433 * `mkstemp' is a traditional Unix function to atomically create and open a
1434 uniquely-named temporary file.
1435 \f
1436 Version 1.05
1438 * The standard location for the file that says what the local timezone is
1439 has changed again. It is now `/usr/local/etc/localtime' (or more
1440 precisely, `${prefix}/etc/localtime') rather than `/etc/localtime'.
1442 * The distribution no longer contains any files with names longer than 14
1443 characters.
1445 * `struct ttyent' has two new flag bits: TTY_TRUSTED and TTY_CONSOLE.
1446 These are set by the new `trusted' and `console' keywords in `/etc/ttys'.
1448 * New functions `ttyslot' and `syslog' from 4.4 BSD.
1449 \f
1450 Version 1.04
1452 * The configuration process has changed quite a bit. The `configure'
1453 script is now used just like the configuration scripts for other GNU
1454 packages. The `sysdeps' directory hierarchy is much rearranged.
1455 The file `INSTALL' explains the new scheme in detail.
1457 * The header files no longer need to be processed into ANSI C and
1458 traditional C versions. There is just one set of files to install, and
1459 it will work with ANSI or old C compilers (including `gcc -traditional').
1461 * Brendan Kehoe and Ian Lance Taylor have ported the library to the
1462 MIPS DECStation running Ultrix 4.
1464 * The Sun 4 startup code (crt0) can now properly load SunOS 4 shared libraries.
1465 Tom Quinn contributed the initial code. The GNU C library can NOT yet be
1466 made itself into a shared library.
1468 * Yet further improved support for the i386, running 4.3 BSD-like systems
1469 (such as Mach 3 with the Unix single-server), or System V.
1471 * New function `strncasecmp' to do case-insensitive string comparison
1472 with limited length.
1474 * New function `strsep' is a reentrant alternative to `strtok'.
1476 * New functions `scandir' and `alphasort' for searching directories.
1478 * New function `setenv' is a better interface to `putenv'.
1480 * Ian Lance Taylor has contributed an implementation of the SVID `ftw'
1481 function for traversing a directory tree.
1483 * The GNU obstack package is now also part of the C library.
1484 The new function `open_obstack_stream' creates a stdio stream that
1485 writes onto an obstack; `obstack_printf' and `obstack_vprintf' do
1486 formatted output directly to an obstack.
1488 * Miscellaneous new functions: reboot, nice, sigaltstack (4.4 BSD only),
1489 cfmakeraw, getusershell, getpass, swab, getttyent, seteuid, setegid.
1491 * `FNM_FILE_NAME' is another name for `FNM_PATHNAME', used with `fnmatch'.
1493 * The new functions `strfry' and `memfrob' do mysterious and wonderful
1494 things to your strings.
1496 * There are some new test programs: test-fseek, testmb, and testrand.
1498 * Some work has been done to begin porting the library to 4.4 BSD and Linux.
1499 These ports are not finished, but are a good starting place for really
1500 supporting those systems.
1502 * `/etc/localtime' is now the standard location for the file that says what
1503 the local timezone is, rather than `/usr/local/lib/zoneinfo/localtime'.
1504 This follows the general principle that `/etc' is the place for all local
1505 configuration files.
1507 * The C library header files now use `extern "C"' when used by the C++
1508 compiler, so the C library should now work with C++ code.
1510 * The header file <bstring.h> is gone. <string.h> now declares bcopy,
1511 bcmp, bzero, and ffs. (Update: nowadays these functions are declared
1512 in <strings.h>.)
1514 * Mike Haertel (of GNU e?grep and malloc fame) has written a new sorting
1515 function which uses the `merge sort' algorithm, and is said to be
1516 significantly faster than the old GNU `qsort' function. Merge sort is
1517 now the standard `qsort' function. The new algorithm can require a lot
1518 of temporary storage; so, the old sorting function is called when the
1519 required storage is not available.
1521 * The C library now includes Michael Glad's Ultra Fast Crypt, which
1522 provides the Unix `crypt' function, plus some other entry points.
1524 * The code and header files taken from 4.4 BSD have been updated with the
1525 latest files released from Berkeley.
1526 \f
1527 ----------------------------------------------------------------------
1528 Copyright information:
1530 Copyright (C) 1992-1999,2000,2001,2002,2003,2004,2005
1531 Free Software Foundation, Inc.
1533 Permission is granted to anyone to make or distribute verbatim copies
1534 of this document as received, in any medium, provided that the
1535 copyright notice and this permission notice are preserved,
1536 thus giving the recipient permission to redistribute in turn.
1538 Permission is granted to distribute modified versions
1539 of this document, or of portions of it,
1540 under the above conditions, provided also that they
1541 carry prominent notices stating who last changed them.
1542 \f
1543 Local variables:
1544 version-control: never
1545 End: