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1 GNU C Library NEWS -- history of user-visible changes. 2002-8-29
2 Copyright (C) 1992-2001, 2002 Free Software Foundation, Inc.
3 See the end for copying conditions.
5 Please send GNU C library bug reports using the `glibcbug' script to
6 <bugs@gnu.org>. Please send questions and suggestions to <bug-glibc@gnu.org>.
7 \f
8 Version 2.3
10 * Masahide Washizawa contributed iconv modules for IBM1163 and IBM1164
11 charsets.
13 * iconv (the program and the interface) now accepts empty names (excluding
14 options like //TRANSLIT) to mean "use charset of current locale".
16 * localedef can now transliterate characters in strings which are not in
17 the provided charmap. The information from the input locale is used.
19 * Prelinking support was added for ELF targets. This requires additional
20 tools and recent versions of the GNU binutils. Contributed by Jakub Jelinek.
22 * Read-only stdio streams now use mmap to speed up operation by eliminating
23 copying and buffer underflows. To use add 'm' to the mode string of
24 the fopen/fdopen/freopen call. Implemented by Ulrich Drepper.
26 * The malloc functions were completely rewritten by Wolfram Gloger based
27 on Doug Lea's malloc-2.7.0.c.
29 * Isamu Hasegawa contributed a completely new and POSIX-conformant
30 implementation of regex.
32 * Bruno Haible upgraded the iconv and locale implementation to support
33 Unicode 3.2.
35 * Contents of the LC_* and LANG environment variables in the CEN style are
36 not recognized anymore. It never was used. Change by Ulrich Drepper.
38 * The runtime (ld.so, libc, libpthread for Linux) now can handle the ELF
39 thread-local storage (TLS) ABI on some platforms.
40 Changes by Ulrich Drepper. SH support by Kaz Kojima.
42 * Bruno Haible contributed iconv converters for ISO-2022-JP-3, SHIFT JIS-X0213,
43 and EUC-JISX0213.
45 * New header <ifaddrs.h> with functions `getifaddrs' and `freeifaddrs':
46 BSD-compatible interface for getting all network interface addresses.
47 Implementation for IPv4 by Roland McGrath.
49 * Loading of locale data is faster due to the introduction of a locale
50 archive. Implemented by Roland McGrath and Ulrich Drepper.
52 * Startup times are significantly reduced by not using exported functions
53 inside the library itself. Changes by Jakub Jelinek, Roland McGrath,
54 and Ulrich Drepper.
55 o\f
56 Version 2.2.6
58 * The Hurd now uses the GNU libio implementation of stdio rather than the
59 old GNU stdio implementation, and uses a new ABI (libc.so.0.3).
61 * The Hurd on x86 now has the `ioperm' function and <sys/io.h> header file
62 with the same behavior as the Linux system call of the same name.
63 \f
64 Version 2.2.5
66 * Stephen Moshier implemented log2, log10, powl and cbrtl for the
67 128-bit long double format.
69 * Masahide Washizawa contributed iconv modules for IBM1132, IBM1133, IBM1160,
70 IBM1161, and IBM1162 charsets.
72 * Andreas Jaeger contributed a port to x86-64/Linux.
74 * Peter Bruin contributed a port to PowerPC/Hurd.
76 * libc functions using I/O streams now can handle wide-oriented streams
77 as well.
79 * optimizations in the dynamic linker. Binaries created by recent binutils
80 versions start up quicker due to reduced time spent on relocations.
82 * Support for use of gcc3 added by Jakub Jelinek and HJ Lu.
83 \f
84 Version 2.2.4
86 * Stephen Moshier implemented cosh, expm1, log1p, acos, sinh, tanh,
87 asinh, atanh, j0 for the 128-bit long double format.
89 * Bruno Haible updated all the code handling Unicode in some form to
90 support Unicode 3.1.
92 * Speed of regex for single-byte locales is back to previous levels.
93 Patch by Isamu Hasegawa.
95 * Alpha, SPARC, and IA-64 now also using floating stacks.
97 * Startup time of internationalized applications greatly improved through
98 iconv cache. Use iconvconfig to generate the cache file.
99 Contributed by Ulrich Drepper.
101 * The IA-64 specific part of ld.so was rewritten to eliminate some pretty
102 severe performance problems. Patch by David Mosberger.
104 * The Hurd port got a lot more functionality like AIO, various stdio
105 extensions, etc. Mainly done by Roland McGrath.
107 * mtrace can now lookup symbols in shared libraries.
108 \f
109 Version 2.2.3
111 * Intel's IA-64 math library is largely integrated. It provides fast and
112 accurate implementatations for most basic and standard math functions
113 in float, double, and long double format.
115 * Stephen Moshier implemented j0, j1, jn, y0, y1, yn, lgamma, erf, erfc,
116 and asin for the 96-bit long double format and asin, log, tan for the
117 128-bit long double format.
119 * The beginning of a last-bit accurate math library by IBM Haifa were added.
120 The basic double functions exist today. Contributed by Abraham Ziv
121 <ziv@il.ibm.com>, Moshe Olshansky <olshansk@il.ibm.com>, Ealan Henis
122 <ealan@il.ibm.com>, and Anna Reitman <reitman@il.ibm.com>.
124 * An asynchronous name lookup library was added. The interface is designed
125 after POSIX AIO. The proposal was circulated beforehand to get comments.
126 No negative ones came in. Implemented by Ulrich Drepper.
128 * Port to S390/64bit contributed by Martin Schwidefsky
129 <schwidefsky@de.ibm.com>.
131 * David Mosberger <davidm@hpl.hp.com> implemented the setcontext family
132 of functions for Linux/IA-64.
134 * The RPC code is now thread safe. Threads can now use the same service
135 of different services at the same time. Patch by Eric Norum
136 <eric.norum@usask.ca> with some help by Ulrich Drepper.
138 * Martin Schwidefsky <schwidefsky@de.ibm.com> implemented the setcontext
139 family of functions for Linux/S390.
141 * Ulrich Drepper <drepper@redhat.com> implemented the setcontext family
142 of functions for Linux/x86.
144 * Port to Linux/CRIS contributed by Axis Communications.
145 \f
146 Version 2.2.2
148 * Lots of headers were cleaned up. Using the tool in the conform/ subdir
149 we can now check for namespace violations and missing declarations. The
150 result is that almost all headers are now Unix-compliant (as defined in
151 the upcoming XPG6). The negative side is that some programs might need
152 corrections, too, if they depend on the incorrect form of the headers in
153 previous versions which defined too many symbols and included too many
154 other headers.
156 * regex now handles multibyte character sets correctly.
157 Contributed by Isamu Hasegawa <isamu@yamato.ibm.com>.
159 * iconv (the program) does now conform to the upcoming XPG6 and handles
160 charmaps. Instead of the charset names the path of charmaps can be
161 provided and the conversion happens based on this data.
162 Contributed by Ulrich Drepper.
164 * The locale program now provides detailed information about the installed
165 locales. While
167 locale -a
169 only lists the names of the supported locales
171 locale -a --verbose
173 provides details such as country, language, and codeset name.
174 Contributed by Ulrich Drepper.
175 \f
176 Version 2.2.1
178 * The gencat program now parses the input file according to the charset
179 selected by the LC_CTYPE category. This is important for stateful
180 character sets. To make generating catalogs easier there is a way
181 to overwrite the charset selected by the locale: before the first
182 message or $ quote line the catalog can contain a line like
184 $ codeset=ISO-8859-2
186 to select the charset (ISO-8859-2 in this case).
188 Implemented by Shinya Hanataka and Ulrich Drepper.
190 * New codeset conversion modules: IBM-922 (Estonia PC codeset),
191 IBM-1124 (Ukraine PC codeset), IBM-1129 (Vietnamese PC codeset).
192 Contributed by Masahide Washizawa <washi@jp.ibm.com>.
194 * Optimized string functions for Alpha ev6 and ev67 by Richard Henderson
195 <rth@redhat.com> and Rick Gorton <rick.gorton@alpha-processor.com>.
197 * The LANGUAGE environment variable is now ignored unless the locale is
198 changed from the default "C" locale.
200 * The usual bug fixes.
201 \f
202 Version 2.2
204 * Greg McGary added runtime support for bounds checking using gcc's
205 new -fbounded-pointers option. ix86 target is complete. PowerPC
206 is in progress.
208 * Thorsten Kukuk added secure mode support to nscd.
210 * The Berkeley db libraries have been removed.
212 Related, the nss_db module is now in a separate package since it
213 obviously requires a database library being available.
215 * Wide character I/O streams implemented by Ulrich Drepper.
217 * Functions from the extended socket API added by Ulrich Drepper.
219 * Functions feenableexcept and fedisableexcept to control the
220 behaviour of individual exceptions have been added by Andreas Jaeger.
222 * ldconfig program added by Andreas Jaeger and Jakub Jelinek.
224 * The resolver code has been updated from bind 8.2.3-T5B which supports
225 threads. The integration was done by Andreas Jaeger, Adam D. Bradley,
226 and Mark Kettenis.
228 This change could in some situations effect backward compatibility. Since
229 now `_res' is a thread-local instead of a global variable, modifying it
230 in one thread does not have any effect in other threads.
232 The resolver library was also extended to allow IPv6 as the transport
233 protocol for the requests. This work was done by Stig Venaas.
235 * Compatibility code for K&R C compilers has been removed from the
236 header files. A ISO C compiler is needed to use the library
237 (conforming to either C89 or C99 standard).
239 * Complete rewrite of the localedef program to support multibyte character
240 sets. Implement handling of ISO 14651 and ISO 14652. Rewrite strcoll,
241 strxfrm, wcscoll, and wcsxfrm functions. Make isw*() functions work.
242 Implemented by Ulrich Drepper.
244 Bruno Haible significantly improved the generation and use of the data
245 structures for the wide character tables.
247 * Plural handling in gettext implemented by Ulrich Drepper.
249 * The utmp daemon has been removed.
251 * The port to MIPS-Linux has been finished by Andreas Jaeger.
253 * A port to Hitachi SH3 and SH4 has been contributed by Kazumoto Kojima
254 and Yutaka Niibe.
256 * POSIX clocks and timers implemented by Kaz Kylheku and Ulrich Drepper.
258 * POSIX barriers implemented by Kaz Kylheku.
260 * POSIX spawn function family implemented by Ulrich Drepper.
262 * POSIX spinlocks are now available.
264 * Timed wait functions for mutex, rwlock, and semaphores are implemented.
266 * the configure option --enable-kernel=X.Y.Z allows to strip out
267 compatibility for kernel versions before X.Y.Z. This is currently only
268 implemented for Linux.
270 * the sockaddr_in6 structure changed. The IPv6 working group added a new
271 field sin6_scope_id. This means that all programs using IPv6 should be
272 recompiled. Don't expect binary compatibility with previous glibc
273 versions.
275 * various conversion modules for IBM character sets contributed by
276 Masahide Washizawa.
278 * IA-64 port by Jes Sorensen and HJ Lu.
280 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
281 Compiling the GNU C Library for Linux/ia64
282 ******************************************
284 Please refer to the file INSTALL in the same directory as you found
285 this file for general information about configuring and compiling
286 glibc.
288 For general inquiries about glibc under Linux/ia64 please use the
289 following mailing list linux-ia64@linuxia64.org or one of the relevant
290 glibc mailing lists.
292 Recommended Tools for Compilation
293 =================================
295 In order for glibc-2.2 to build correctly on the ia64 you need at
296 least the following versions of the GNU tools (the :
298 * The Cygnus toolchain snapshot for the ia64 as of August 4
299 including the provided set of patches. It is however recommend
300 you use the October 24 toolchain snapshot or a more recent version.
302 OR alternatively you can try the following (the Cygnus toolchain is
303 the recommended solution):
305 * GCC and binutils, GAS and GNU LD out of CVS from
306 sources.redhat.com as of August 28, 2000 or later. The CVS tree
307 may require special patches to work properly on the ia64.
309 Configuring and compiling GNU Libc for Linux/ia64
310 =================================================
312 The library requires Linux kernel version 2.4.0-test4-000728 or
313 later to funtion properly. Besides that it support for debug libraries
314 is currently untested. Hence the following options
315 are required for configuring the library:
317 --disable-debug --enable-kernel=2.4.0
319 It is also important that you make sure the library picks up the
320 appropriate kernel header files, if you do not have recent enough
321 kernel headers in /usr/src/linux/include, you should use the
322 --with-headers=<path> option to specify the location.
324 As an example I personally use the following options to configure
325 the library:
327 --disable-debug
328 --disable-cvs
329 --enable-kernel=2.4.0
330 --host=ia64-linux
331 --enable-add-ons=yes
332 --prefix=/usr
333 --with-headers=/home/jes/linux/include
336 Good luck
338 Jes Sorensen <jes@linuxcare.com>,
339 November 14th, 2000
340 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
341 \f
342 Version 2.1.3
344 * bug fixes
346 \f
347 Version 2.1.2
349 * bug fixes
351 \f
352 Version 2.1.1
354 * New ISO C 9x function _Exit, imaxabs, and imaxdiv are added.
356 * New xdr functions are added; some rpc functions are now 64bit clean.
358 * Fixed a number of bugs and memory leaks (especially in NIS+ code).
360 * Fixed known incompatibilities with glibc 2.0.
362 * New functions lock64, strchrnul, rawmemchr, getutmp and getutmpx.
364 * Optimized a number of functions (especially the ELF dynamic loader).
366 * Update timezone data files.
368 * lots of charmaps corrections
370 * some new locale definitions and charmaps
372 \f
373 Version 2.1
375 * Richard Henderson corrected size of struct timeval on Linux/Alpha to
376 conform to POSIX member type requirements. Symbol versions have been
377 adjusted as needed within the library, and for direct use by applications,
378 but there is potential for problems if third-party libraries use
379 struct timeval as part of their interface. This does not present
380 a problem for X and other "essential" system libraries.
382 * An additional locale model to support C++ Standard Library locale
383 model and probably more was implemented by Ulrich Drepper.
385 * Eric Youngdale and Ulrich Drepper implemented versioning of objects on
386 symbol level.
388 * Miles Bader provided the `argp' function family to support hierachical
389 command line argument parsing, layered on top of getopt.
391 * strtod accepts new hexadecimal floating-point format from ISO C 9X.
393 * printf has two new specifiers %a and %A to print hexadecimal flaoting-point
394 numbers.
396 * scanf recognizes the %a and %A format for scanning floating point numbers.
398 * the new headers <stdint.h> and <inttypes.h> from ISO C 9X provides
399 information and interfaces for the available integer types.
401 * about 130 new math functions were added to implement the ISO C9x math
402 library.
404 * the new header <complex.h> contains definitions of the complex math
405 functions from ISO C 9X.
407 * the new header <tgmath.h> defines generic macros to use complex or
408 real valued functions.
410 * Thorsten Kukuk provided an implementation for NIS+, securelevel 0, 1 and 2.
412 * Andreas Jaeger provided a test suite for the math library.
414 * Mark Kettenis implemented the utmpx interface and an utmp daemon.
416 * Ulrich Drepper added character set conversion functions (iconv).
418 * Optimized string functions have been added.
420 * The localedata addon is now part of glibc.
422 * An implementation of profiling shared libraries was added by Ulrich Drepper.
424 * Thorsten Kukuk and Ulrich Drepper provided an implementation for a caching
425 daemon for NSS (nscd).
427 Missing a better place here are some numbers on improvements. Under
428 Linux 2.1.125 un-tar-ing the kernel sources takes
430 user system wall
432 using local files 12.19s 6.88s 22.91s
434 using NIS 13.92s 8.91s 26.34s
436 using NIS & nscd 10.37s 7.34s 25.30s
438 using NIS+ 27.57s 30.37s 640.46s
440 using NIS+ & nscd 10.25s 7.83s 26.51s
442 using NIS & old nscd [1] 13.83s 8.32s 29.60s
444 Keep in mind that non-namelookup related operations dominate above times.
445 It was just a common complain that using NIS+ unpacking the kernel is
446 horribly slow.
448 [1] The old nscd implementation is not available anymore since it was
449 distributed with glibc up to version 2.0.98 and thus is now replaced.
451 * Tim Waugh provided an implementation of the POSIX.2 wordexp function family.
453 * Mark Kettenis provided a Hesiod NSS module.
455 * The ELF dynamic loader knows how to process dynamic string tokens ($ORIGIN
456 and $PLATFORM) in RPATHs and similar strings (Ulrich Drepper).
458 * rcmd can now handle netgroups (Dick Streefland).
460 * A port to the ARM was contributed by Phil Blundell, Pat Beirne and Scott
461 Bambrough.
463 * Support for the IPv6 protocol has been added to the socket API, as per the
464 latest draft standards.
466 * Support for Linux 2.2 has been added.
468 * Interface changes relative to the latest 2.0.x release:
469 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
470 addseverity NEW: Unix98
471 alphasort64 NEW: LFS
472 argp_err_exit_status NEW: argp, GNU ext
473 argp_error NEW: argp, GNU ext
474 argp_failure NEW: argp, GNU ext
475 argp_help NEW: argp, GNU ext
476 argp_parse NEW: argp, GNU ext
477 argp_program_bug_address NEW: argp, GNU ext
478 argp_program_version NEW: argp, GNU ext
479 argp_program_version_hook NEW: argp, GNU ext
480 argp_state_help NEW: argp, GNU ext
481 argp_usage NEW: argp, GNU ext
482 authdes_create NEW: Secure RPC
483 authdes_getucred NEW: Secure RPC
484 authdes_pk_create NEW: Secure RPC
485 backtrace NEW: GNU ext.
486 backtrace_symbols NEW: GNU ext.
487 backtrace_symbols_fd NEW: GNU ext.
488 cacos NEW: ISO C 9x
489 cacosf NEW: ISO C 9x
490 cacosh NEW: ISO C 9x
491 cacoshf NEW: ISO C 9x
492 cacoshl NEW: ISO C 9x
493 cacosl NEW: ISO C 9x
494 capget NEW: kernel
495 capset NEW: kernel
496 carg NEW: ISO C 9x
497 cargf NEW: ISO C 9x
498 cargl NEW: ISO C 9x
499 casin NEW: ISO C 9x
500 casinf NEW: ISO C 9x
501 casinh NEW: ISO C 9x
502 casinhf NEW: ISO C 9x
503 casinhl NEW: ISO C 9x
504 casinl NEW: ISO C 9x
505 catan NEW: ISO C 9x
506 catanf NEW: ISO C 9x
507 catanh NEW: ISO C 9x
508 catanhf NEW: ISO C 9x
509 catanhl NEW: ISO C 9x
510 catanl NEW: ISO C 9x
511 cbc_crypt NEW: Secure RPC
512 ccos NEW: ISO C 9x
513 ccosf NEW: ISO C 9x
514 ccosh NEW: ISO C 9x
515 ccoshf NEW: ISO C 9x
516 ccoshl NEW: ISO C 9x
517 ccosl NEW: ISO C 9x
518 cexp NEW: ISO C 9x
519 cexpf NEW: ISO C 9x
520 cexpl NEW: ISO C 9x
521 cimag NEW: ISO C 9x
522 cimagf NEW: ISO C 9x
523 cimagl NEW: ISO C 9x
524 clearerr_locked REMOVED
525 clntunix_create NEW: sunrpc ext
526 clog NEW: ISO C 9x
527 clog10 NEW: ISO C 9x
528 clog10f NEW: ISO C 9x
529 clog10l NEW: ISO C 9x
530 clogf NEW: ISO C 9x
531 clogl NEW: ISO C 9x
532 conj NEW: ISO C 9x
533 conjf NEW: ISO C 9x
534 conjl NEW: ISO C 9x
535 cpow NEW: ISO C 9x
536 cpowf NEW: ISO C 9x
537 cpowl NEW: ISO C 9x
538 cproj NEW: ISO C 9x
539 cprojf NEW: ISO C 9x
540 cprojl NEW: ISO C 9x
541 creal NEW: ISO C 9x
542 crealf NEW: ISO C 9x
543 creall NEW: ISO C 9x
544 creat64 NEW: LFS
545 csin NEW: ISO C 9x
546 csinf NEW: ISO C 9x
547 csinh NEW: ISO C 9x
548 csinhf NEW: ISO C 9x
549 csinhl NEW: ISO C 9x
550 csinl NEW: ISO C 9x
551 csqrt NEW: ISO C 9x
552 csqrtf NEW: ISO C 9x
553 csqrtl NEW: ISO C 9x
554 ctan NEW: ISO C 9x
555 ctanf NEW: ISO C 9x
556 ctanh NEW: ISO C 9x
557 ctanhf NEW: ISO C 9x
558 ctanhl NEW: ISO C 9x
559 ctanl NEW: ISO C 9x
560 des_setparity NEW: Secure RPC
561 ecb_crypt NEW: Secure RPC
562 endutxent NEW: Unix98
563 exp10 NEW: ISO C 9x
564 exp10f NEW: ISO C 9x
565 exp10l NEW: ISO C 9x
566 exp2 NEW: ISO C 9x
567 exp2f NEW: ISO C 9x
568 exp2l NEW: ISO C 9x
569 fattach NEW: STREAMS
570 fdetach NEW: STREAMS
571 fdim NEW: ISO C 9x
572 fdimf NEW: ISO C 9x
573 fdiml NEW: ISO C 9x
574 feclearexcept NEW: ISO C 9x
575 fegetenv NEW: ISO C 9x
576 fegetexceptflag NEW: ISO C 9x
577 fegetround NEW: ISO C 9x
578 feholdexcept NEW: ISO C 9x
579 feof_locked REMOVED
580 feraiseexcept NEW: ISO C 9x
581 ferror_locked REMOVED
582 fesetenv NEW: ISO C 9x
583 fesetexceptflag NEW: ISO C 9x
584 fesetround NEW: ISO C 9x
585 fetestexcept NEW: ISO C 9x
586 feupdateenv NEW: ISO C 9x
587 fflush_locked REMOVED
588 ffsl NEW: GNU ext.
589 ffsll NEW: GNU ext.
590 fgetpos64 NEW: LFS
591 fgets_unlocked NEW: GNU ext.
592 fileno_locked REMOVED
593 fma NEW: ISO C 9x
594 fmaf NEW: ISO C 9x
595 fmal NEW: ISO C 9x
596 fmax NEW: ISO C 9x
597 fmaxf NEW: ISO C 9x
598 fmaxl NEW: ISO C 9x
599 fmin NEW: ISO C 9x
600 fminf NEW: ISO C 9x
601 fminl NEW: ISO C 9x
602 fmtmsg NEW: Unix98
603 fopen64 NEW: LFS
604 fputc_locked REMOVED
605 fputs_unlocked NEW: GNU ext.
606 fread_unlocked NEW: GNU ext.
607 freopen64 NEW: LFS
608 fseeko NEW: Unix98
609 fsetpos64 NEW: LFS
610 fstatfs64 NEW: LFS
611 fstatvfs NEW: Unix98
612 fstatvfs64 NEW: LFS
613 ftello NEW: Unix98
614 ftello64 NEW: LFS
615 ftruncate64 NEW: LFS
616 ftw64 NEW: LFS
617 fwrite_unlocked NEW: GNU ext.
618 gai_strerror NEW: IPv6
619 gamma_r REMOVED
620 gammaf_r REMOVED
621 gammal_r REMOVED
622 getchar_locked REMOVED
623 getdate NEW: Unix98
624 getdate_err NEW: Unix98
625 getdate_r NEW: GNU ext.
626 getmsg NEW: STREAMS
627 getnameinfo NEW: IPv6
628 getnetname NEW: Secure RPC
629 getpmsg NEW: STREAMS
630 getpt NEW: Unix98 PTY
631 getrlimit64 NEW: LFS
632 getutxent NEW: Unix98
633 getutxid NEW: Unix98
634 getutxline NEW: Unix98
635 glob64 NEW: GNU ext.
636 globfree64 NEW: GNU ext.
637 gnu_get_libc_release NEW: GNU ext.
638 gnu_get_libc_version NEW: GNU ext.
639 grantpt NEW: Unix98 PTY
640 host2netname NEW: Secure RPC
641 iconv NEW: iconv
642 iconv_close NEW: iconv
643 iconv_open NEW: iconv
644 if_freenameindex NEW: IPv6
645 if_indextoname NEW: IPv6
646 if_nameindex NEW: IPv6
647 if_nametoindex NEW: IPv6
648 in6addr_any NEW: IPv6
649 in6addr_loopback NEW: IPv6
650 inet6_isipv4mapped NEW: IPv6
651 isastream NEW: STREAMS
652 iswblank NEW: GNU ext.
653 key_decryptsession NEW: Secure RPC
654 key_decryptsession_pk NEW: Secure RPC
655 key_encryptsession NEW: Secure RPC
656 key_encryptsession_pk NEW: Secure RPC
657 key_gendes NEW: Secure RPC
658 key_get_conv NEW: Secure RPC
659 key_secretkey_is_set NEW: Secure RPC
660 key_setnet NEW: Secure RPC
661 key_setsecret NEW: Secure RPC
662 llrint NEW: ISO C 9x
663 llrintf NEW: ISO C 9x
664 llrintl NEW: ISO C 9x
665 llround NEW: ISO C 9x
666 llroundf NEW: ISO C 9x
667 llroundl NEW: ISO C 9x
668 log2 NEW: ISO C 9x
669 log2f NEW: ISO C 9x
670 log2l NEW: ISO C 9x
671 lrint NEW: ISO C 9x
672 lrintf NEW: ISO C 9x
673 lrintl NEW: ISO C 9x
674 lround NEW: ISO C 9x
675 lroundf NEW: ISO C 9x
676 lroundl NEW: ISO C 9x
677 lseek64 NEW: LFS
678 makecontext NEW: Unix98
679 mempcpy NEW: GNU ext.
680 mmap64 NEW: LFS
681 moncontrol REMOVED
682 modify_ldt NEW: kernel
683 nan NEW: ISO C 9x
684 nanf NEW: ISO C 9x
685 nanl NEW: ISO C 9x
686 nearbyint NEW: ISO C 9x
687 nearbyintf NEW: ISO C 9x
688 nearbyintl NEW: ISO C 9x
689 netname2host NEW: Secure RPC
690 netname2user NEW: Secure RPC
691 nexttoward NEW: ISO C 9x
692 nexttowardf NEW: ISO C 9x
693 nexttowardl NEW: ISO C 9x
694 nftw NEW: Unix98
695 nftw64 NEW: LFS
696 open64 NEW: LFS
697 passwd2des NEW: Secure RPC
698 pow10 NEW: GNU ext.
699 pow10f NEW: GNU ext.
700 pow10l NEW: GNU ext.
701 pread NEW: Unix98
702 pread64 NEW: LFS
703 printf_size NEW: GNU ext.
704 printf_size_info NEW: GNU ext.
705 profil_counter REMOVED
706 pthread_mutexattr_getkind_np REPLACED
707 pthread_mutexattr_setkind_np REPLACED
708 ptsname NEW: Unix98 PTY
709 ptsname_r NEW: Unix98 PTY
710 putc_locked REMOVED
711 putchar_locked REMOVED
712 putgrent NEW: GNU ext.
713 putmsg NEW: STREAMS
714 putpmsg NEW: STREAMS
715 pututxline NEW: Unix98
716 pwrite NEW: Unix98
717 pwrite64 NEW: LFS
718 readdir64 NEW: LFS
719 readdir64_r NEW: LFS
720 remquo NEW: ISO C 9x
721 remquof NEW: ISO C 9x
722 remquol NEW: ISO C 9x
723 round NEW: ISO C 9x
724 roundf NEW: ISO C 9x
725 roundl NEW: ISO C 9x
726 rtime NEW: GNU ext.
727 scalbln NEW: ISO C 9x
728 scalblnf NEW: ISO C 9x
729 scalblnl NEW: ISO C 9x
730 scandir64 NEW: LFS
731 sendfile NEW: kernel
732 setcontext NEW: Unix98
733 setrlimit64 NEW: LFS
734 setutxent NEW: Unix98
735 sighold NEW: Unix98
736 sigignore NEW: Unix98
737 sigqueue NEW: POSIX.1b
738 sigrelse NEW: Unix98
739 sigset NEW: POSIX.1b
740 sigtimedwait NEW: POSIX.1b
741 sigwaitinfo NEW: POSIX.1b
742 sincos NEW: GNU ext.
743 sincosf NEW: GNU ext.
744 sincosl NEW: GNU ext.
745 statfs64 NEW: LFS
746 statvfs NEW: Unix98
747 statvfs64 NEW: LFS
748 strcasestr NEW: GNU ext.
749 strtoimax NEW: ISO C 9x
750 strtoumax NEW: ISO C 9x
751 strverscmp NEW: GNU ext.
752 svcauthdes_stats NEW: Secure RPC
753 svcunix_create NEW: sunrpc etx
754 svcunixfd_create NEW: sunrpc ext
755 swapcontext NEW: Unix98
756 tcgetsid NEW: Unix98 PTY
757 tdestroy NEW: GNU ext.
758 tgamma NEW: ISO C 9x
759 tgammaf NEW: ISO C 9x
760 tgammal NEW: ISO C 9x
761 tmpfile64 NEW: LFS
762 trunc NEW: ISO C 9x
763 truncate64 NEW: LFS
764 truncf NEW: ISO C 9x
765 truncl NEW: ISO C 9x
766 umount2 NEW: kernel
767 unlockpt NEW: Unix98 PTY
768 updwtmpx NEW: Unix98
769 user2netname NEW: Secure RPC
770 utmpxname NEW: Unix98
771 versionsort NEW: GNU ext.
772 versionsort64 NEW: GNU ext.
773 waitid NEW: Unix98
774 wcscasecmp NEW: GNU ext.
775 wcsncasecmp NEW: GNU ext.
776 wcsnlen NEW: GNU ext.
777 wcstoimax NEW: ISO C 9x
778 wcstoll NEW: ISO C 9x
779 wcstoull NEW: ISO C 9x
780 wcstoumax NEW: ISO C 9x
781 wcswcs NEW: Unix98
782 wordexp NEW: POSIX.2
783 wordfree NEW: POSIX.2
784 write_profiling REMOVED
785 xdecrypt NEW: Secure RPC
786 xdr_authdes_cred NEW: Secure RPC
787 xdr_authdes_verf NEW: Secure RPC
788 xdr_cryptkeyarg NEW: Secure RPC
789 xdr_cryptkeyarg2 NEW: Secure RPC
790 xdr_cryptkeyres NEW: Secure RPC
791 xdr_getcredres NEW: Secure RPC
792 xdr_key_netstarg NEW: Secure RPC
793 xdr_key_netstres NEW: Secure RPC
794 xdr_keybuf NEW: Secure RPC
795 xdr_keystatus NEW: Secure RPC
796 xdr_netnamestr NEW: Secure RPC
797 xdr_sizeof NEW: Secure RPC
798 xdr_unixcred NEW: sunrpc ext
799 xencrypt NEW: Secure RPC
800 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
801 \f
802 Version 2.0.6
804 * more bug fixes
806 \f
807 Version 2.0.5
809 * more bug fixes
811 * inet_ntoa is thread-safe
813 * updwtmp is moved from libutil to libc
815 * rewrite of cbrt function
817 * update of timezone data
818 \f
819 Version 2.0.4
821 * more bug fixes
822 \f
823 Version 2.0.3
825 * more bug fixes
826 \f
827 Version 2.0.2
829 * more bug fixes
831 * add atoll function
833 * fix complex problems in Berkeley DB code
835 * fix math functions
836 \f
837 Version 2.0.1
839 * fixed lots of header problems (especially Linux/GNU specific)
841 * dynamic loader preserves all registers
843 * Roland McGrath provided support for handling of auxiliary objects in
844 the ELF dynamic loader.
846 * support for parallel builds is improved
847 \f
848 Version 2.0
850 * GNU extensions are no longer declared by default. To enable them you
851 must define the macro `_GNU_SOURCE' in your program or compile with
852 `-D_GNU_SOURCE'.
854 * The library has changed from using GNU ld symbol aliases to using weak
855 symbols where available. The ELF object file format supports weak
856 symbols; GNU ld also supports weak symbols in the a.out format. (There
857 is also now support for other GNU ld extensions in ELF. Use the
858 `--with-elf' option to configure to indicate you have ELF, and
859 `--with-gnu-ld' if using GNU ld.) This change resulted in the deletion
860 of many files which contained only symbol aliases, reducing the size of
861 the source and the compiled library; many other files were renamed to
862 less cryptic names previously occupied by the symbol alias files.
863 There is a new header file <elf.h> for programs which operate on
864 files in the ELF format.
866 * Converted to Autoconf version 2, so `configure' has more options.
867 Run `configure --help' to see the details.
869 * The library can now be configured to build profiling, highly-optimized
870 (but undebuggable), and/or shared libraries (ELF with GNU ld only). The
871 `--enable-profile', `--enable-omitfp', and `--enable-shared' options to
872 `configure' enable building these extra libraries. The shared library is
873 built by default when using both ELF and GNU ld. When shared libraries
874 are enabled, the new library `-ldl' is available for arbitrary run-time
875 loading of shared objects; its interface is defined in <dlfcn.h>. The
876 new header file <link.h> gives access to the internals of the run-time
877 dynamic linker, `ld.so'. The shell script `ldd' is similar to the
878 application of same name on other systems and it provides information
879 about dynamically linked binaries.
881 * The C library now provides the run-time support code for profiling
882 executables compiled with `-pg'. Programs can control the profiling code
883 through the interface in <sys/gmon.h>. The `gmon.out' files written by
884 the GNU C library can be read only by GNU `gprof' (from GNU binutils);
885 the support for this file format was contributed by David Mosberger-Tang.
887 * The math code has been replaced with a math library based on fdlibm from
888 Sun, and modified by JT Conklin and Ulrich Drepper with i387 support, by
889 Ian Taylor with `float' functions and by Ulrich Drepper with `long double'
890 functions. The math functions now reside in a separate library, so
891 programs using them will need to use `-lm' their linking commands.
893 * John C. Bowman contributed optimized ix87 assembler inline functions.
895 * Ulrich Drepper has contributed support for an `/etc/nsswitch.conf'
896 mechanism similar to that found in Solaris 2. This is now used for the
897 group, passwd, hosts, networks, services, protocols, rpc, ethers,
898 shadow, netgroup, publickey, and alias databases. The `nsswitch.conf'
899 file controls what services are used for each individual database. This
900 works by loading shared libraries with names specified in `nsswitch.conf',
901 so service modules can be changed or added at any time without even
902 relinking any program. Currently there are the file, db, and NIS based
903 NSS services available.
905 * The new functions `strtoq' and `strtouq' parse integer values from
906 strings, like `strtol' and `strtoul', but they return `long long int' and
907 `unsigned long long int' values, respectively (64-bit quantities).
909 * The new functions `strtof' and `strtold' parse floating-point values from
910 strings, like `strtod', but they return `float' and `long double' values,
911 respectively (on some machines `double' and `long double' are the same).
913 * Ulrich Drepper has contributed new implementations of the floating-point
914 printing and reading code used in the `printf' family of functions and
915 `strtod', `strtof', and `strtold'. These new functions are perfectly
916 accurate, and much faster than the old ones.
918 * The implementation of the POSIX locale model was completely rewritten by
919 Ulrich Drepper. This includes the new programs `localedef' and `locale'
920 to compile the POSIX locale definition.
922 * The former dummy implementations of the strcoll and strxfrm function are
923 now replaced by fully functional code contributed by Ulrich Drepper. The
924 collation information comes from the POSIX locale definitions.
926 * The new header <langinfo.h> defines an interface for accessing
927 various locale-dependent data (using the locale chosen with `setlocale').
929 * Ulrich Drepper has contributed a new suite of functions for operation on
930 wide-character and multibyte-character strings, in <wchar.h>;
931 and classification and case conversion of wide characters, in <wctype.h>.
932 These new functions are conforming to the ISO C, Amendement 1 specification.
934 * There is now a second implementation of the standard I/O library available.
935 It comes from GNU libg++ as was written by Per Bothner, heavily modified
936 by Hongjiu Lu and made thread safe by Ulrich Drepper.
938 * You can now use positional parameter specifications in format strings
939 for the `printf' and `scanf' families of functions. For example,
940 `printf ("Number %2$d, Mr %1$s\n", "Jones", 6);'' prints
941 ``Number 6, Mr Jones''. This is mainly useful when providing different
942 format strings for different languages, whose grammars may dictate
943 different orderings of the values being printed. To support this
944 feature, the interface for `register_printf_handler' has changed; see
945 the header file <printf.h> for details.
947 * The `printf' and `scanf' families of functions now understand a new
948 formatting flag for numeric conversions: the ' flag (e.g. %'d or %'f) says
949 to group numbers as indicated by the locale; for `scanf' and friends, this
950 says to accept as valid only a number with all the proper grouping
951 separators in the right places. In the default "C" locale, numbers are
952 not grouped; but locales for specific countries will define the usual
953 conventions (i.e. separate thousands with `,' in the US locale).
955 * The pgrp functions have been regularized, slightly incompatibly but much
956 less confusingly. The core functions are now `getpgid' and `setpgid',
957 which take arguments for the PID to operate on; the POSIX.1 `getpgrp' (no
958 argument) and BSD `setpgrp' (identical to `setpgid') functions are
959 provided for compatibility. There is no longer an incompatible `getpgrp'
960 with an argument declared under _BSD_SOURCE; no BSD code uses it.
962 * The new header file <fts.h> and suite of functions simplify programs that
963 operate on directory trees. This code comes from 4.4 BSD.
965 * The resolver code has been updated from the BIND 4.9.5-P1 release.
966 Parts of the code were heavily modified by Ulrich Drepper to fit in the
967 NSS scheme used in glibc.
969 * There is a new malloc debugging hook `__memalign_hook'.
971 * There are new typedefs `ushort' for `unsigned short int' and `uint' for
972 `unsigned int' in <sys/types.h>. These are for compatibility only and
973 their use is discouraged.
975 * The `-lmcheck' library to enable standard malloc debugging hooks is now
976 done differently, so that it works even without GNU ld.
978 * New function `euidaccess' checks allowed access to a file like `access',
979 but using the effective IDs instead of the real IDs.
981 * The time zone data files have been updated for the latest and greatest
982 local time conventions of the countries of the world.
984 * The new function `dirfd' extracts the file descriptor used by a DIR stream;
985 see <dirent.h>.
987 * The new functions `ecvt', `fcvt', and `gcvt' provide an obsolete interface
988 for formatting floating-point numbers. They are provided only for
989 compatibility; new programs should use `sprintf' instead. There are
990 also equivalent function for the `long double' floating-point type and
991 all functions also exist in a reentrant form.
993 * The new auxiliary library `-lutil' from 4.4 BSD contains various
994 functions for maintaining the login-record files (primarily of use to
995 system programs such as `login'), and convenient functions for
996 allocating and initializing a pseudo-terminal (pty) device.
998 * Ulrich Drepper has contributed new support for System V style
999 shared memory and IPC on systems that support it.
1001 * Ulrich Drepper has contributed several miscellaneous new functions found
1002 in System V: The `hsearch' family of functions provide an effective
1003 implementation of hash tables; `a64l' and `l64a' provide a very simple
1004 binary to ASCII mapping; `drand48' and friends provide a 48-bit random
1005 number generator.
1007 * Ulrich Drepper has contributed new reentrant counterparts for the
1008 `random' and `hsearch' families of functions; `random_r', `hsearch_r', etc.
1010 * Ulrich Drepper has contributed new, highly-optimized versions of several
1011 string functions for the i486/Pentium family of processors.
1013 * Ulrich Drepper has updated the Linux-specific code, based largely
1014 on work done in Hongjiu Lu's version of GNU libc for Linux.
1015 The GNU library now supports Linux versions 2.0.10 and later,
1016 using the ELF object file format (i[3456]86-*-linux).
1018 * Andreas Schwab has ported the C library to Linux/m68k (m68k-*-linux).
1020 * David Mosberger-Tang and Richard Henderson have ported the C library
1021 to Linux/Alpha (alpha-*-linux). Richard Henderson contributed the
1022 dynamic linking support for ELF/Alpha.
1024 * Richard Henderson contributed several Alpha optimized assembler function
1025 for arithmetic and string handling.
1027 * Ulrich Drepper has contributed a new set of message catalog functions to
1028 support multiple languages using the <libintl.h> interface, for use with
1029 his new package GNU gettext. Translation volunteers have contributed
1030 catalogs of the library's messages in Spanish, German, and Korean.
1032 * For compatibility with XPG4, Ulrich Drepper has contributed the `gencat'
1033 program and the `catgets' function for reading the catalog files it
1034 creates. (The <libintl.h> interface is preferred; we include the
1035 <nl_types.h> interface using `catgets' only for source compatibility with
1036 programs already written to use it.)
1038 * New header file <values.h> gives SVID-compatible names for <limits.h>
1039 constants.
1041 * Various new macros, declarations, and small header files for compatibility
1042 with 4.4 BSD.
1044 * New function `group_member' is a convenient way to check if a process has
1045 a given effective group ID.
1047 * When using GCC 2.7 and later, the socket functions are now declared in a
1048 special way so that passing an argument of type `struct sockaddr_in *',
1049 `struct sockaddr_ns *', or `struct sockaddr_un *' instead of the generic
1050 `struct sockaddr *' type, does not generate a type-clash warning.
1052 * New function `error' declared in header file <error.h> is a convenient
1053 function for printing error messages and optionally exiting; this is the
1054 canonical function used in GNU programs. The new functions `err', `warn',
1055 and friends in header file <err.h> are the canonical 4.4 BSD interface for
1056 doing the same thing.
1058 * The <glob.h> interface has several new flags from 4.4 BSD that extend the
1059 POSIX.2 `glob' function to do ~ and {...} expansion.
1061 * New function `unsetenv' complements `setenv' for compatibility with 4.4 BSD.
1062 `clearenv' which is used in POSIX.9 is also available.
1064 * New function `getsid' returns session ID number on systems that support it.
1066 * We have incorporated the 4.4 BSD `db' library (version 1.85). New header
1067 files <db.h> and <mpool.h> provide a rich set of functions for several
1068 types of simple databases stored in memory and in files, and <ndbm.h> is
1069 an old `ndbm'-compatible interface using the `db' functions. Link with
1070 `-ldb' to get these functions.
1072 * New macro `strdupa' copies a string like `strdup', but uses local stack
1073 space from `alloca' instead of dynamic heap space from `malloc'.
1075 * New function `strnlen' is like `strlen' but searches only a given maximum
1076 number of characters for the null terminator. `stpncpy', `strndup' and
1077 `strndupa' are similar variants for the `stpcpy', `strdup' and `strdupa'
1078 function.
1080 * New function `statfs' in header <sys/statfs.h>.
1082 * The new <argz.h> and <envz.h> interfaces contributed by Miles Bader
1083 provide convenient functions for operating on blocks of null-terminated
1084 strings.
1086 * A new suite of functions in <utmp.h> handle all the details of reading
1087 and writing the utmp file.
1089 * An implementation of the NIS/YP(tm) based NSS service was contributed by
1090 Thorsten Kukuk.
1092 * Paul Eggert and Ulrich Drepper modified the `strftime' function to be
1093 completely POSIX compliant and also implemented the extended functionality
1094 to handle alternate digit representation and alternate era date formats.
1096 * Ulrich Drepper provided an implementation of the `strptime' function
1097 defined in XPG4.2 which transforms a string into a `struct tm' value.
1099 * Paul Eggert provided the tzselect shell script as part of the timezone
1100 code. The shell script makes it easy to select the correct timezone
1101 specification.
1103 * The implementation of the malloc family of functions is completely replaced
1104 by a new implementation by Doug Lea with many improvements by Wolfram Gloger.
1105 The implementation uses the mmap function (if available) and it is
1106 optimized for the use in multi threaded programs.
1108 * Ulrich Drepper contributed a MD5 "encryption" for the crypt family of
1109 functions. This new functionality is usable by specifying a special
1110 salt string and it is compatible with implementation on *BSD systems.
1112 * Lots of functions from the XPG4.2 standard were added by Ulrich Drepper:
1113 `getsubopt' to handle second level command line options, `bsd_signal'
1114 to access BSD style `signal' functionality, the obsolete `regexp' style
1115 expression matcher.
1117 * the `lchown' function is available on system which support this
1118 functionality.
1120 * The implementation of the shadow password handling function was contributed
1121 by Ulrich Drepper.
1123 * David Mosberger-Tang changed the SunRPC implementation to be 64bit safe.
1125 * POSIX.1g support was added. The <sys/select.h> header is available,
1126 `isfdtype' and `pselect' are implemented. Craig Metz contributed an
1127 implementation of `getaddrinfo'.
1128 \f
1129 Version 1.09
1131 * For cross-compilation you should now set `BUILD_CC' instead of `HOST_CC'.
1133 * New header file <fstab.h> and new functions `getfsspec', `getfsent' and
1134 friends, for parsing /etc/fstab. This code comes from 4.4 BSD.
1136 * The new function `daemon' from 4.4 BSD is useful for server programs that
1137 want to put themselves in the background.
1139 * Joel Sherrill has contributed support for several standalone boards that
1140 run without an operating system.
1142 * `printf', `scanf' and friends now accept a `q' type modifier for long
1143 long int as well as `ll'. Formats using these might be `%qu' or `%lld'.
1145 * All of the code taken from BSD (notably most of the math and networking
1146 routines) has been updated from the BSD 4.4-Lite release.
1148 * The resolver code has been updated from the BIND-4.9.3-BETA9 release.
1150 * The new functions `getdomainname' and `setdomainname' fetch or change the
1151 YP/NIS domain name. These are system calls which exist on systems which
1152 have YP (aka NIS).
1154 * The time zone data files have been updated for the latest international
1155 conventions.
1157 * The SunRPC programs `portmap' and `rpcinfo' are now installed in
1158 $(sbindir) (usually /usr/local/sbin) instead of $(bindir).
1159 \f
1160 Version 1.08
1162 * The C library now includes support for Sun RPC, from Sun's free
1163 RPCSRC-4.0 distribution. The `portmap', `rpcinfo', and `rpcgen' programs
1164 are included. (There is still no support for YP.)
1166 * Tom Quinn has contributed a port of the C library to SGI machines running
1167 Irix 4 (mips-sgi-irix4).
1169 * The new `lockf' function is a simplified interface to the locking
1170 facilities of `fcntl', included for compatibility.
1172 * New time functions `timegm', `timelocal', and `dysize' for compatibility.
1174 * New header file <sys/timeb.h> and new function `ftime' for compatibility.
1176 * New header files <poll.h> and <sys/poll.h> and new function `poll' for
1177 compatibility.
1179 * The error message printed by `assert' for a failed assertion now includes
1180 the name of the program (if using GNU ld) and the name of the calling
1181 function (with versions of GCC that support this).
1183 * The `psignal' function is now declared in <signal.h>, not <stdio.h>.
1185 * The library now includes the <sys/mman.h> header file and memory
1186 management functions `mmap', `munmap', `mprotect', `msync', and
1187 `madvise', on systems that support those facilities.
1189 * The interface for `mcheck' has changed slightly: the function called to
1190 abort the program when an allocation inconsistency is detected now takes
1191 an argument that indicates the type of failure. The new function
1192 `mprobe' lets you request a consistency check for a particular block at
1193 any time (checks are normally done only when you call `free' or `realloc'
1194 on a block).
1196 * It is now possible to easily cross-compile the C library, building on one
1197 system a library to run on another machine and/or operating system. All
1198 you need to do is set the variable `HOST_CC' in `configparms' to the
1199 native compiler for programs to run on the machine you are building on (a
1200 few generator programs are used on Unix systems); set `CC' to the
1201 cross-compiler.
1203 * The new function `fexecve' (only implemented on the GNU system) executes
1204 a program file given a file descriptor already open on the file.
1205 \f
1206 Version 1.07
1208 * Brendan Kehoe has contributed most of a port to the DEC Alpha
1209 running OSF/1 (alpha-dec-osf1). He says it is 75% complete.
1211 * You can set the variable `libprefix' in `configparms' to specify a prefix
1212 to be prepended to installed library files; this makes it easy to install
1213 the GNU C library to be linked as `-lgnuc' or whatever.
1215 * The new `stpncpy' is a cross between `stpcpy' and `strncpy': It
1216 copies a limited number of characters from a string, and returns the
1217 address of the last character written.
1219 * You no longer need to check for whether the installed `stddef.h' is
1220 compatible with the GNU C library. configure now checks for you.
1222 * You can now define a per-stream `fileno' function to convert the
1223 stream's cookie into an integral file descriptor.
1225 * ``malloc (0)'' no longer returns a null pointer. Instead, it
1226 allocates zero bytes of storage, and returns a unique pointer which
1227 you can pass to `realloc' or `free'. The behavior is undefined if
1228 you dereference this pointer.
1230 * The C library now runs on Sony NEWS m68k machines running either
1231 NewsOS 3 or NewsOS 4.
1233 * The new `syscall' function is a system-dependent primitive function
1234 for invoking system calls. It has the canonical behavior on Unix
1235 systems, including unreliable return values for some calls (such as
1236 `pipe', `fork' and `getppid').
1238 * The error code `EWOULDBLOCK' is now obsolete; it is always defined
1239 to `EAGAIN', which is the preferred name. On systems whose kernels
1240 use two distinct codes, the C library now translates EWOULDBLOCK to
1241 EAGAIN in every system call function.
1242 \f
1243 Version 1.06
1245 * The GNU C Library Reference Manual is now distributed with the library.
1246 `make dvi' will produce a DVI file of the printed manual.
1247 `make info' will produce Info files that you can read on line using C-h i
1248 in Emacs or the `info' program.
1249 Please send comments on the manual to bug-glibc-manual@gnu.org.
1251 * The library now supports SVR4 on i386s (i386-unknown-sysv4).
1253 * Brendan Kehoe has contributed a port to Sun SPARCs running Solaris 2.
1255 * Jason Merrill has contributed a port to the Sequent Symmetry running
1256 Dynix version 3 (i386-sequent-dynix).
1258 * The library has been ported to i386s running SCO 3.2.4 (also known as SCO
1259 ODT 2.0; i386-unknown-sco3.2.4) or SCO 3.2 (i386-unknown-sco3.2).
1261 * New function `memory_warnings' lets you arrange to get warnings when
1262 malloc is running out of memory to allocate, like Emacs gives you.
1264 * The C library now contains the relocating allocator used in Emacs 19 for
1265 its editing buffers. This allocator (ralloc) minimizes allocation
1266 overhead and fragmentation by moving allocated regions around whenever it
1267 needs to. You always refer to a ralloc'd region with a "handle" (a
1268 pointer to a pointer--an object of type `void **').
1270 * There is a new `printf' format: `%m' gives you the string corresponding
1271 to the error code in `errno'.
1273 * In `scanf' formats, you can now use `%as' or `%a[' to do the normal `%s'
1274 or `%[' conversion, but instead of filling in a fixed-sized buffer you
1275 pass, the `a' modifier says to fill in a `char **' you pass with a
1276 malloc'd string.
1278 * The `fnmatch' function supports the new flag bits `FNM_LEADING_DIR' and
1279 `FNM_CASEFOLD'. `FNM_LEADING_DIR' lets a pattern like `foo*' match a
1280 name like `foo/bar'. `FNM_CASEFOLD' says to ignore case in matching.
1282 * `mkstemp' is a traditional Unix function to atomically create and open a
1283 uniquely-named temporary file.
1284 \f
1285 Version 1.05
1287 * The standard location for the file that says what the local timezone is
1288 has changed again. It is now `/usr/local/etc/localtime' (or more
1289 precisely, `${prefix}/etc/localtime') rather than `/etc/localtime'.
1291 * The distribution no longer contains any files with names longer than 14
1292 characters.
1294 * `struct ttyent' has two new flag bits: TTY_TRUSTED and TTY_CONSOLE.
1295 These are set by the new `trusted' and `console' keywords in `/etc/ttys'.
1297 * New functions `ttyslot' and `syslog' from 4.4 BSD.
1298 \f
1299 Version 1.04
1301 * The configuration process has changed quite a bit. The `configure'
1302 script is now used just like the configuration scripts for other GNU
1303 packages. The `sysdeps' directory hierarchy is much rearranged.
1304 The file `INSTALL' explains the new scheme in detail.
1306 * The header files no longer need to be processed into ANSI C and
1307 traditional C versions. There is just one set of files to install, and
1308 it will work with ANSI or old C compilers (including `gcc -traditional').
1310 * Brendan Kehoe and Ian Lance Taylor have ported the library to the
1311 MIPS DECStation running Ultrix 4.
1313 * The Sun 4 startup code (crt0) can now properly load SunOS 4 shared libraries.
1314 Tom Quinn contributed the initial code. The GNU C library can NOT yet be
1315 made itself into a shared library.
1317 * Yet further improved support for the i386, running 4.3 BSD-like systems
1318 (such as Mach 3 with the Unix single-server), or System V.
1320 * New function `strncasecmp' to do case-insensitive string comparison
1321 with limited length.
1323 * New function `strsep' is a reentrant alternative to `strtok'.
1325 * New functions `scandir' and `alphasort' for searching directories.
1327 * New function `setenv' is a better interface to `putenv'.
1329 * Ian Lance Taylor has contributed an implementation of the SVID `ftw'
1330 function for traversing a directory tree.
1332 * The GNU obstack package is now also part of the C library.
1333 The new function `open_obstack_stream' creates a stdio stream that
1334 writes onto an obstack; `obstack_printf' and `obstack_vprintf' do
1335 formatted output directly to an obstack.
1337 * Miscellaneous new functions: reboot, nice, sigaltstack (4.4 BSD only),
1338 cfmakeraw, getusershell, getpass, swab, getttyent, seteuid, setegid.
1340 * `FNM_FILE_NAME' is another name for `FNM_PATHNAME', used with `fnmatch'.
1342 * The new functions `strfry' and `memfrob' do mysterious and wonderful
1343 things to your strings.
1345 * There are some new test programs: test-fseek, testmb, and testrand.
1347 * Some work has been done to begin porting the library to 4.4 BSD and Linux.
1348 These ports are not finished, but are a good starting place for really
1349 supporting those systems.
1351 * `/etc/localtime' is now the standard location for the file that says what
1352 the local timezone is, rather than `/usr/local/lib/zoneinfo/localtime'.
1353 This follows the general principle that `/etc' is the place for all local
1354 configuration files.
1356 * The C library header files now use `extern "C"' when used by the C++
1357 compiler, so the C library should now work with C++ code.
1359 * The header file <bstring.h> is gone. <string.h> now declares bcopy,
1360 bcmp, bzero, and ffs. (Update: nowadays these functions are declared
1361 in <strings.h>.)
1363 * Mike Haertel (of GNU e?grep and malloc fame) has written a new sorting
1364 function which uses the `merge sort' algorithm, and is said to be
1365 significantly faster than the old GNU `qsort' function. Merge sort is
1366 now the standard `qsort' function. The new algorithm can require a lot
1367 of temporary storage; so, the old sorting function is called when the
1368 required storage is not available.
1370 * The C library now includes Michael Glad's Ultra Fast Crypt, which
1371 provides the Unix `crypt' function, plus some other entry points.
1373 * The code and header files taken from 4.4 BSD have been updated with the
1374 latest files released from Berkeley.
1375 \f
1376 ----------------------------------------------------------------------
1377 Copyright information:
1379 Copyright (C) 1992-1999,2000,01,02 Free Software Foundation, Inc.
1381 Permission is granted to anyone to make or distribute verbatim copies
1382 of this document as received, in any medium, provided that the
1383 copyright notice and this permission notice are preserved,
1384 thus giving the recipient permission to redistribute in turn.
1386 Permission is granted to distribute modified versions
1387 of this document, or of portions of it,
1388 under the above conditions, provided also that they
1389 carry prominent notices stating who last changed them.
1390 \f
1391 Local variables:
1392 version-control: never
1393 End: