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1 GNU C Library NEWS -- history of user-visible changes. 2004-8-5
2 Copyright (C) 1992-2002,2003,2004 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 2.3.4
10 * Support for RFC 3678. Real implementations exist only for Linux so far.
11 Implemented by Ulrich Drepper.
13 * nscd can now cache entries persistently. Expiring entries are reloaded.
14 For speedups the cache can be shared in memory with client processes.
15 Implemented by Ulrich Drepper.
17 * nscd can now perform SELinux checks.
18 Implemented by Matthew Rickard <mjricka@epoch.ncsc.mil>.
20 * getaddrinfo queries are not cached. Canonical name lookup is performed
21 efficiently.
22 Implemented by Ulrich Drepper.
24 * The nothrow function attribute is used when headers are used by gcc when
25 compiling C code. This can avoid significant amounts of exception
26 handling data.
28 * The malloc functions perform more error checking and are stricter when
29 it comes to reacting on errors. The default action is to terminate
30 the process after showing an error message.
32 * Reverse lookups of IPv6 addresses does not use bit string or .ip6.int
33 lookups anymore unless explicitly requested.
34 \f
35 Version 2.3.3
37 * New functions `dladdr1' and `dlinfo' in <dlfcn.h> provide more ways to
38 interrogate the dynamic linker, compatible with the Solaris interface.
40 * ELF thread-local storage support (TLS) now works on PowerPC and PowerPC64;
41 implemented by Paul Mackerras, Steven Munroe, and Roland McGrath.
43 * getifaddrs now uses the netlink interface on Linux to get its information.
44 Implemented by Thorsten Kukuk.
46 * getaddrinfo now implements AI_V4MAPPED, AI_ALL, and AI_ADDRCONF.
47 Implemented by Ulrich Drepper.
49 * support for non-executable stacks on x86 has been added. Changes mostly
50 by Roland McGrath.
52 * regex is now much faster for multibyte locales. Changes by Jakub Jelinek
53 and Ulrich Drepper.
55 * getaddrinfo now performs destination address selection according to
56 RFC 3484.
57 \f
58 Version 2.3.2
60 * Thread-safe interfaces for many functions that access locale data
61 were added in version 2.3, but these features were omitted from NEWS.
62 Many functions have variants with an `_l' suffix that take a `locale_t'
63 object as a parameter rather than consulting the current locale.
64 The new functions `newlocale', `duplocale', and `freelocale' in <locale.h>
65 create and maintain `locale_t' objects. Additionally, the new function
66 `uselocale' sets "the current locale" (as used by functions not so
67 parameterized) set for an individual thread. These features were added
68 in version 2.3, implemented by Ulrich Drepper and Roland McGrath.
70 * The functions getresuid, getresgid, setresuid, and setresgid, which
71 have long been available on Linux, are now declared in <unistd.h>
72 and are now also available on the Hurd.
74 * ELF thread-local storage support (TLS) now works on x86-64.
76 * The new dynamic string token $LIB is expanded in shared library names.
77 This normally expands to lib, but on some 64-bit platforms to lib64 instead.
79 * Aldy Hernandez contributed complete software floating point support for
80 PowerPC machines with no FPU.
82 * fexecve is implemented on Linux.
84 * The `btowc' function should work at least twice as fast due to
85 specialized callbacks in the iconv modules. Implemented by Bruno Haible.
87 * With approriate thread add-ons cancelable functions are now implemented
88 in libc.so as well. No need to call the function in libpthread. This
89 change allowed to finally disable the incorrect and expensive handling
90 of weak definition in ld.so.
92 * Yet more PLT entries in libc.so have been removed. We finally arrived
93 at the bare minimum. Startup times improved appropriately.
95 * Support for the new Linux/x86 system call interface was added. The
96 AT_SYSINFO auxiliary vector entry is recognized and handled.
97 \f
98 Version 2.3
100 * Masahide Washizawa contributed iconv modules for IBM1163 and IBM1164
101 charsets.
103 * iconv (the program and the interface) now accepts empty names (excluding
104 options like //TRANSLIT) to mean "use charset of current locale".
106 * localedef can now transliterate characters in strings which are not in
107 the provided charmap. The information from the input locale is used.
109 * Prelinking support was added for ELF targets. This requires additional
110 tools and recent versions of the GNU binutils. Contributed by Jakub Jelinek.
112 * Read-only stdio streams now use mmap to speed up operation by eliminating
113 copying and buffer underflows. To use add 'm' to the mode string of
114 the fopen/fdopen/freopen call. Implemented by Ulrich Drepper.
116 * The malloc functions were completely rewritten by Wolfram Gloger based
117 on Doug Lea's malloc-2.7.0.c.
119 * Isamu Hasegawa contributed a completely new and POSIX-conformant
120 implementation of regex.
122 * Bruno Haible upgraded the iconv and locale implementation to support
123 Unicode 3.2.
125 * Contents of the LC_* and LANG environment variables in the CEN style are
126 not recognized anymore. It never was used. Change by Ulrich Drepper.
128 * The runtime (ld.so, libc, libpthread for Linux) now can handle the ELF
129 thread-local storage (TLS) ABI on some platforms.
130 Changes by Ulrich Drepper. SH support by Kaz Kojima.
132 * Bruno Haible contributed iconv converters for ISO-2022-JP-3, SHIFT JIS-X0213,
133 EUC-JISX0213, and TSCII.
135 * New header <ifaddrs.h> with functions `getifaddrs' and `freeifaddrs':
136 BSD-compatible interface for getting all network interface addresses.
137 Implementation for IPv4 by Roland McGrath.
139 * Loading of locale data is faster due to the introduction of a locale
140 archive. Implemented by Roland McGrath and Ulrich Drepper.
142 * Startup times are significantly reduced by not using exported functions
143 inside the library itself. Changes by Jakub Jelinek, Roland McGrath,
144 and Ulrich Drepper.
146 * Steven Munroe contributed a port to PowerPC64/Linux.
147 \f
148 Version 2.2.6
150 * The Hurd now uses the GNU libio implementation of stdio rather than the
151 old GNU stdio implementation, and uses a new ABI (libc.so.0.3).
153 * The Hurd on x86 now has the `ioperm' function and <sys/io.h> header file
154 with the same behavior as the Linux system call of the same name.
155 \f
156 Version 2.2.5
158 * Stephen Moshier implemented log2, log10, powl and cbrtl for the
159 128-bit long double format.
161 * Masahide Washizawa contributed iconv modules for IBM1132, IBM1133, IBM1160,
162 IBM1161, and IBM1162 charsets.
164 * Andreas Jaeger contributed a port to x86-64/Linux.
166 * Peter Bruin contributed a port to PowerPC/Hurd.
168 * libc functions using I/O streams now can handle wide-oriented streams
169 as well.
171 * optimizations in the dynamic linker. Binaries created by recent binutils
172 versions start up quicker due to reduced time spent on relocations.
174 * Support for use of gcc3 added by Jakub Jelinek and HJ Lu.
175 \f
176 Version 2.2.4
178 * Stephen Moshier implemented cosh, expm1, log1p, acos, sinh, tanh,
179 asinh, atanh, j0 for the 128-bit long double format.
181 * Bruno Haible updated all the code handling Unicode in some form to
182 support Unicode 3.1.
184 * Speed of regex for single-byte locales is back to previous levels.
185 Patch by Isamu Hasegawa.
187 * Alpha, SPARC, and IA-64 now also using floating stacks.
189 * Startup time of internationalized applications greatly improved through
190 iconv cache. Use iconvconfig to generate the cache file.
191 Contributed by Ulrich Drepper.
193 * The IA-64 specific part of ld.so was rewritten to eliminate some pretty
194 severe performance problems. Patch by David Mosberger.
196 * The Hurd port got a lot more functionality like AIO, various stdio
197 extensions, etc. Mainly done by Roland McGrath.
199 * mtrace can now lookup symbols in shared libraries.
200 \f
201 Version 2.2.3
203 * Intel's IA-64 math library is largely integrated. It provides fast and
204 accurate implementatations for most basic and standard math functions
205 in float, double, and long double format.
207 * Stephen Moshier implemented j0, j1, jn, y0, y1, yn, lgamma, erf, erfc,
208 and asin for the 96-bit long double format and asin, log, tan for the
209 128-bit long double format.
211 * The beginning of a last-bit accurate math library by IBM Haifa were added.
212 The basic double functions exist today. Contributed by Abraham Ziv
213 <ziv@il.ibm.com>, Moshe Olshansky <olshansk@il.ibm.com>, Ealan Henis
214 <ealan@il.ibm.com>, and Anna Reitman <reitman@il.ibm.com>.
216 * An asynchronous name lookup library was added. The interface is designed
217 after POSIX AIO. The proposal was circulated beforehand to get comments.
218 No negative ones came in. Implemented by Ulrich Drepper.
220 * Port to S390/64bit contributed by Martin Schwidefsky
221 <schwidefsky@de.ibm.com>.
223 * David Mosberger <davidm@hpl.hp.com> implemented the setcontext family
224 of functions for Linux/IA-64.
226 * The RPC code is now thread safe. Threads can now use the same service
227 of different services at the same time. Patch by Eric Norum
228 <eric.norum@usask.ca> with some help by Ulrich Drepper.
230 * Martin Schwidefsky <schwidefsky@de.ibm.com> implemented the setcontext
231 family of functions for Linux/S390.
233 * Ulrich Drepper <drepper@redhat.com> implemented the setcontext family
234 of functions for Linux/x86.
236 * Port to Linux/CRIS contributed by Axis Communications.
237 \f
238 Version 2.2.2
240 * Lots of headers were cleaned up. Using the tool in the conform/ subdir
241 we can now check for namespace violations and missing declarations. The
242 result is that almost all headers are now Unix-compliant (as defined in
243 the upcoming XPG6). The negative side is that some programs might need
244 corrections, too, if they depend on the incorrect form of the headers in
245 previous versions which defined too many symbols and included too many
246 other headers.
248 * regex now handles multibyte character sets correctly.
249 Contributed by Isamu Hasegawa <isamu@yamato.ibm.com>.
251 * iconv (the program) does now conform to the upcoming XPG6 and handles
252 charmaps. Instead of the charset names the path of charmaps can be
253 provided and the conversion happens based on this data.
254 Contributed by Ulrich Drepper.
256 * The locale program now provides detailed information about the installed
257 locales. While
259 locale -a
261 only lists the names of the supported locales
263 locale -a --verbose
265 provides details such as country, language, and codeset name.
266 Contributed by Ulrich Drepper.
267 \f
268 Version 2.2.1
270 * The gencat program now parses the input file according to the charset
271 selected by the LC_CTYPE category. This is important for stateful
272 character sets. To make generating catalogs easier there is a way
273 to overwrite the charset selected by the locale: before the first
274 message or $ quote line the catalog can contain a line like
276 $ codeset=ISO-8859-2
278 to select the charset (ISO-8859-2 in this case).
280 Implemented by Shinya Hanataka and Ulrich Drepper.
282 * New codeset conversion modules: IBM-922 (Estonia PC codeset),
283 IBM-1124 (Ukraine PC codeset), IBM-1129 (Vietnamese PC codeset).
284 Contributed by Masahide Washizawa <washi@jp.ibm.com>.
286 * Optimized string functions for Alpha ev6 and ev67 by Richard Henderson
287 <rth@redhat.com> and Rick Gorton <rick.gorton@alpha-processor.com>.
289 * The LANGUAGE environment variable is now ignored unless the locale is
290 changed from the default "C" locale.
292 * The usual bug fixes.
293 \f
294 Version 2.2
296 * Greg McGary added runtime support for bounds checking using gcc's
297 new -fbounded-pointers option. ix86 target is complete. PowerPC
298 is in progress.
300 * Thorsten Kukuk added secure mode support to nscd.
302 * The Berkeley db libraries have been removed.
304 Related, the nss_db module is now in a separate package since it
305 obviously requires a database library being available.
307 * Wide character I/O streams implemented by Ulrich Drepper.
309 * Functions from the extended socket API added by Ulrich Drepper.
311 * Functions feenableexcept and fedisableexcept to control the
312 behaviour of individual exceptions have been added by Andreas Jaeger.
314 * ldconfig program added by Andreas Jaeger and Jakub Jelinek.
316 * The resolver code has been updated from bind 8.2.3-T5B which supports
317 threads. The integration was done by Andreas Jaeger, Adam D. Bradley,
318 and Mark Kettenis.
320 This change could in some situations effect backward compatibility. Since
321 now `_res' is a thread-local instead of a global variable, modifying it
322 in one thread does not have any effect in other threads.
324 The resolver library was also extended to allow IPv6 as the transport
325 protocol for the requests. This work was done by Stig Venaas.
327 * Compatibility code for K&R C compilers has been removed from the
328 header files. A ISO C compiler is needed to use the library
329 (conforming to either C89 or C99 standard).
331 * Complete rewrite of the localedef program to support multibyte character
332 sets. Implement handling of ISO 14651 and ISO 14652. Rewrite strcoll,
333 strxfrm, wcscoll, and wcsxfrm functions. Make isw*() functions work.
334 Implemented by Ulrich Drepper.
336 Bruno Haible significantly improved the generation and use of the data
337 structures for the wide character tables.
339 * Plural handling in gettext implemented by Ulrich Drepper.
341 * The utmp daemon has been removed.
343 * The port to MIPS-Linux has been finished by Andreas Jaeger.
345 * A port to Hitachi SH3 and SH4 has been contributed by Kazumoto Kojima
346 and Yutaka Niibe.
348 * POSIX clocks and timers implemented by Kaz Kylheku and Ulrich Drepper.
350 * POSIX barriers implemented by Kaz Kylheku.
352 * POSIX spawn function family implemented by Ulrich Drepper.
354 * POSIX spinlocks are now available.
356 * Timed wait functions for mutex, rwlock, and semaphores are implemented.
358 * the configure option --enable-kernel=X.Y.Z allows to strip out
359 compatibility for kernel versions before X.Y.Z. This is currently only
360 implemented for Linux.
362 * the sockaddr_in6 structure changed. The IPv6 working group added a new
363 field sin6_scope_id. This means that all programs using IPv6 should be
364 recompiled. Don't expect binary compatibility with previous glibc
365 versions.
367 * various conversion modules for IBM character sets contributed by
368 Masahide Washizawa.
370 * IA-64 port by Jes Sorensen and HJ Lu.
372 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
373 Compiling the GNU C Library for Linux/ia64
374 ******************************************
376 Please refer to the file INSTALL in the same directory as you found
377 this file for general information about configuring and compiling
378 glibc.
380 For general inquiries about glibc under Linux/ia64 please use the
381 following mailing list linux-ia64@linuxia64.org or one of the relevant
382 glibc mailing lists.
384 Recommended Tools for Compilation
385 =================================
387 In order for glibc-2.2 to build correctly on the ia64 you need at
388 least the following versions of the GNU tools (the :
390 * The Cygnus toolchain snapshot for the ia64 as of August 4
391 including the provided set of patches. It is however recommend
392 you use the October 24 toolchain snapshot or a more recent version.
394 OR alternatively you can try the following (the Cygnus toolchain is
395 the recommended solution):
397 * GCC and binutils, GAS and GNU LD out of CVS from
398 sources.redhat.com as of August 28, 2000 or later. The CVS tree
399 may require special patches to work properly on the ia64.
401 Configuring and compiling GNU Libc for Linux/ia64
402 =================================================
404 The library requires Linux kernel version 2.4.0-test4-000728 or
405 later to funtion properly. Besides that it support for debug libraries
406 is currently untested. Hence the following options
407 are required for configuring the library:
409 --disable-debug --enable-kernel=2.4.0
411 It is also important that you make sure the library picks up the
412 appropriate kernel header files, if you do not have recent enough
413 kernel headers in /usr/src/linux/include, you should use the
414 --with-headers=<path> option to specify the location.
416 As an example I personally use the following options to configure
417 the library:
419 --disable-debug
420 --disable-cvs
421 --enable-kernel=2.4.0
422 --host=ia64-linux
423 --enable-add-ons=yes
424 --prefix=/usr
425 --with-headers=/home/jes/linux/include
428 Good luck
430 Jes Sorensen <jes@linuxcare.com>,
431 November 14th, 2000
432 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
433 \f
434 Version 2.1.3
436 * bug fixes
438 \f
439 Version 2.1.2
441 * bug fixes
443 \f
444 Version 2.1.1
446 * New ISO C 9x function _Exit, imaxabs, and imaxdiv are added.
448 * New xdr functions are added; some rpc functions are now 64bit clean.
450 * Fixed a number of bugs and memory leaks (especially in NIS+ code).
452 * Fixed known incompatibilities with glibc 2.0.
454 * New functions lock64, strchrnul, rawmemchr, getutmp and getutmpx.
456 * Optimized a number of functions (especially the ELF dynamic loader).
458 * Update timezone data files.
460 * lots of charmaps corrections
462 * some new locale definitions and charmaps
464 \f
465 Version 2.1
467 * Richard Henderson corrected size of struct timeval on Linux/Alpha to
468 conform to POSIX member type requirements. Symbol versions have been
469 adjusted as needed within the library, and for direct use by applications,
470 but there is potential for problems if third-party libraries use
471 struct timeval as part of their interface. This does not present
472 a problem for X and other "essential" system libraries.
474 * An additional locale model to support C++ Standard Library locale
475 model and probably more was implemented by Ulrich Drepper.
477 * Eric Youngdale and Ulrich Drepper implemented versioning of objects on
478 symbol level.
480 * Miles Bader provided the `argp' function family to support hierachical
481 command line argument parsing, layered on top of getopt.
483 * strtod accepts new hexadecimal floating-point format from ISO C 9X.
485 * printf has two new specifiers %a and %A to print hexadecimal flaoting-point
486 numbers.
488 * scanf recognizes the %a and %A format for scanning floating point numbers.
490 * the new headers <stdint.h> and <inttypes.h> from ISO C 9X provides
491 information and interfaces for the available integer types.
493 * about 130 new math functions were added to implement the ISO C9x math
494 library.
496 * the new header <complex.h> contains definitions of the complex math
497 functions from ISO C 9X.
499 * the new header <tgmath.h> defines generic macros to use complex or
500 real valued functions.
502 * Thorsten Kukuk provided an implementation for NIS+, securelevel 0, 1 and 2.
504 * Andreas Jaeger provided a test suite for the math library.
506 * Mark Kettenis implemented the utmpx interface and an utmp daemon.
508 * Ulrich Drepper added character set conversion functions (iconv).
510 * Optimized string functions have been added.
512 * The localedata addon is now part of glibc.
514 * An implementation of profiling shared libraries was added by Ulrich Drepper.
516 * Thorsten Kukuk and Ulrich Drepper provided an implementation for a caching
517 daemon for NSS (nscd).
519 Missing a better place here are some numbers on improvements. Under
520 Linux 2.1.125 un-tar-ing the kernel sources takes
522 user system wall
524 using local files 12.19s 6.88s 22.91s
526 using NIS 13.92s 8.91s 26.34s
528 using NIS & nscd 10.37s 7.34s 25.30s
530 using NIS+ 27.57s 30.37s 640.46s
532 using NIS+ & nscd 10.25s 7.83s 26.51s
534 using NIS & old nscd [1] 13.83s 8.32s 29.60s
536 Keep in mind that non-namelookup related operations dominate above times.
537 It was just a common complain that using NIS+ unpacking the kernel is
538 horribly slow.
540 [1] The old nscd implementation is not available anymore since it was
541 distributed with glibc up to version 2.0.98 and thus is now replaced.
543 * Tim Waugh provided an implementation of the POSIX.2 wordexp function family.
545 * Mark Kettenis provided a Hesiod NSS module.
547 * The ELF dynamic loader knows how to process dynamic string tokens ($ORIGIN
548 and $PLATFORM) in RPATHs and similar strings (Ulrich Drepper).
550 * rcmd can now handle netgroups (Dick Streefland).
552 * A port to the ARM was contributed by Phil Blundell, Pat Beirne and Scott
553 Bambrough.
555 * Support for the IPv6 protocol has been added to the socket API, as per the
556 latest draft standards.
558 * Support for Linux 2.2 has been added.
560 * Interface changes relative to the latest 2.0.x release:
561 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
562 addseverity NEW: Unix98
563 alphasort64 NEW: LFS
564 argp_err_exit_status NEW: argp, GNU ext
565 argp_error NEW: argp, GNU ext
566 argp_failure NEW: argp, GNU ext
567 argp_help NEW: argp, GNU ext
568 argp_parse NEW: argp, GNU ext
569 argp_program_bug_address NEW: argp, GNU ext
570 argp_program_version NEW: argp, GNU ext
571 argp_program_version_hook NEW: argp, GNU ext
572 argp_state_help NEW: argp, GNU ext
573 argp_usage NEW: argp, GNU ext
574 authdes_create NEW: Secure RPC
575 authdes_getucred NEW: Secure RPC
576 authdes_pk_create NEW: Secure RPC
577 backtrace NEW: GNU ext.
578 backtrace_symbols NEW: GNU ext.
579 backtrace_symbols_fd NEW: GNU ext.
580 cacos NEW: ISO C 9x
581 cacosf NEW: ISO C 9x
582 cacosh NEW: ISO C 9x
583 cacoshf NEW: ISO C 9x
584 cacoshl NEW: ISO C 9x
585 cacosl NEW: ISO C 9x
586 capget NEW: kernel
587 capset NEW: kernel
588 carg NEW: ISO C 9x
589 cargf NEW: ISO C 9x
590 cargl NEW: ISO C 9x
591 casin NEW: ISO C 9x
592 casinf NEW: ISO C 9x
593 casinh NEW: ISO C 9x
594 casinhf NEW: ISO C 9x
595 casinhl NEW: ISO C 9x
596 casinl NEW: ISO C 9x
597 catan NEW: ISO C 9x
598 catanf NEW: ISO C 9x
599 catanh NEW: ISO C 9x
600 catanhf NEW: ISO C 9x
601 catanhl NEW: ISO C 9x
602 catanl NEW: ISO C 9x
603 cbc_crypt NEW: Secure RPC
604 ccos NEW: ISO C 9x
605 ccosf NEW: ISO C 9x
606 ccosh NEW: ISO C 9x
607 ccoshf NEW: ISO C 9x
608 ccoshl NEW: ISO C 9x
609 ccosl NEW: ISO C 9x
610 cexp NEW: ISO C 9x
611 cexpf NEW: ISO C 9x
612 cexpl NEW: ISO C 9x
613 cimag NEW: ISO C 9x
614 cimagf NEW: ISO C 9x
615 cimagl NEW: ISO C 9x
616 clearerr_locked REMOVED
617 clntunix_create NEW: sunrpc ext
618 clog NEW: ISO C 9x
619 clog10 NEW: ISO C 9x
620 clog10f NEW: ISO C 9x
621 clog10l NEW: ISO C 9x
622 clogf NEW: ISO C 9x
623 clogl NEW: ISO C 9x
624 conj NEW: ISO C 9x
625 conjf NEW: ISO C 9x
626 conjl NEW: ISO C 9x
627 cpow NEW: ISO C 9x
628 cpowf NEW: ISO C 9x
629 cpowl NEW: ISO C 9x
630 cproj NEW: ISO C 9x
631 cprojf NEW: ISO C 9x
632 cprojl NEW: ISO C 9x
633 creal NEW: ISO C 9x
634 crealf NEW: ISO C 9x
635 creall NEW: ISO C 9x
636 creat64 NEW: LFS
637 csin NEW: ISO C 9x
638 csinf NEW: ISO C 9x
639 csinh NEW: ISO C 9x
640 csinhf NEW: ISO C 9x
641 csinhl NEW: ISO C 9x
642 csinl NEW: ISO C 9x
643 csqrt NEW: ISO C 9x
644 csqrtf NEW: ISO C 9x
645 csqrtl NEW: ISO C 9x
646 ctan NEW: ISO C 9x
647 ctanf NEW: ISO C 9x
648 ctanh NEW: ISO C 9x
649 ctanhf NEW: ISO C 9x
650 ctanhl NEW: ISO C 9x
651 ctanl NEW: ISO C 9x
652 des_setparity NEW: Secure RPC
653 ecb_crypt NEW: Secure RPC
654 endutxent NEW: Unix98
655 exp10 NEW: ISO C 9x
656 exp10f NEW: ISO C 9x
657 exp10l NEW: ISO C 9x
658 exp2 NEW: ISO C 9x
659 exp2f NEW: ISO C 9x
660 exp2l NEW: ISO C 9x
661 fattach NEW: STREAMS
662 fdetach NEW: STREAMS
663 fdim NEW: ISO C 9x
664 fdimf NEW: ISO C 9x
665 fdiml NEW: ISO C 9x
666 feclearexcept NEW: ISO C 9x
667 fegetenv NEW: ISO C 9x
668 fegetexceptflag NEW: ISO C 9x
669 fegetround NEW: ISO C 9x
670 feholdexcept NEW: ISO C 9x
671 feof_locked REMOVED
672 feraiseexcept NEW: ISO C 9x
673 ferror_locked REMOVED
674 fesetenv NEW: ISO C 9x
675 fesetexceptflag NEW: ISO C 9x
676 fesetround NEW: ISO C 9x
677 fetestexcept NEW: ISO C 9x
678 feupdateenv NEW: ISO C 9x
679 fflush_locked REMOVED
680 ffsl NEW: GNU ext.
681 ffsll NEW: GNU ext.
682 fgetpos64 NEW: LFS
683 fgets_unlocked NEW: GNU ext.
684 fileno_locked REMOVED
685 fma NEW: ISO C 9x
686 fmaf NEW: ISO C 9x
687 fmal NEW: ISO C 9x
688 fmax NEW: ISO C 9x
689 fmaxf NEW: ISO C 9x
690 fmaxl NEW: ISO C 9x
691 fmin NEW: ISO C 9x
692 fminf NEW: ISO C 9x
693 fminl NEW: ISO C 9x
694 fmtmsg NEW: Unix98
695 fopen64 NEW: LFS
696 fputc_locked REMOVED
697 fputs_unlocked NEW: GNU ext.
698 fread_unlocked NEW: GNU ext.
699 freopen64 NEW: LFS
700 fseeko NEW: Unix98
701 fsetpos64 NEW: LFS
702 fstatfs64 NEW: LFS
703 fstatvfs NEW: Unix98
704 fstatvfs64 NEW: LFS
705 ftello NEW: Unix98
706 ftello64 NEW: LFS
707 ftruncate64 NEW: LFS
708 ftw64 NEW: LFS
709 fwrite_unlocked NEW: GNU ext.
710 gai_strerror NEW: IPv6
711 gamma_r REMOVED
712 gammaf_r REMOVED
713 gammal_r REMOVED
714 getchar_locked REMOVED
715 getdate NEW: Unix98
716 getdate_err NEW: Unix98
717 getdate_r NEW: GNU ext.
718 getmsg NEW: STREAMS
719 getnameinfo NEW: IPv6
720 getnetname NEW: Secure RPC
721 getpmsg NEW: STREAMS
722 getpt NEW: Unix98 PTY
723 getrlimit64 NEW: LFS
724 getutxent NEW: Unix98
725 getutxid NEW: Unix98
726 getutxline NEW: Unix98
727 glob64 NEW: GNU ext.
728 globfree64 NEW: GNU ext.
729 gnu_get_libc_release NEW: GNU ext.
730 gnu_get_libc_version NEW: GNU ext.
731 grantpt NEW: Unix98 PTY
732 host2netname NEW: Secure RPC
733 iconv NEW: iconv
734 iconv_close NEW: iconv
735 iconv_open NEW: iconv
736 if_freenameindex NEW: IPv6
737 if_indextoname NEW: IPv6
738 if_nameindex NEW: IPv6
739 if_nametoindex NEW: IPv6
740 in6addr_any NEW: IPv6
741 in6addr_loopback NEW: IPv6
742 inet6_isipv4mapped NEW: IPv6
743 isastream NEW: STREAMS
744 iswblank NEW: GNU ext.
745 key_decryptsession NEW: Secure RPC
746 key_decryptsession_pk NEW: Secure RPC
747 key_encryptsession NEW: Secure RPC
748 key_encryptsession_pk NEW: Secure RPC
749 key_gendes NEW: Secure RPC
750 key_get_conv NEW: Secure RPC
751 key_secretkey_is_set NEW: Secure RPC
752 key_setnet NEW: Secure RPC
753 key_setsecret NEW: Secure RPC
754 llrint NEW: ISO C 9x
755 llrintf NEW: ISO C 9x
756 llrintl NEW: ISO C 9x
757 llround NEW: ISO C 9x
758 llroundf NEW: ISO C 9x
759 llroundl NEW: ISO C 9x
760 log2 NEW: ISO C 9x
761 log2f NEW: ISO C 9x
762 log2l NEW: ISO C 9x
763 lrint NEW: ISO C 9x
764 lrintf NEW: ISO C 9x
765 lrintl NEW: ISO C 9x
766 lround NEW: ISO C 9x
767 lroundf NEW: ISO C 9x
768 lroundl NEW: ISO C 9x
769 lseek64 NEW: LFS
770 makecontext NEW: Unix98
771 mempcpy NEW: GNU ext.
772 mmap64 NEW: LFS
773 moncontrol REMOVED
774 modify_ldt NEW: kernel
775 nan NEW: ISO C 9x
776 nanf NEW: ISO C 9x
777 nanl NEW: ISO C 9x
778 nearbyint NEW: ISO C 9x
779 nearbyintf NEW: ISO C 9x
780 nearbyintl NEW: ISO C 9x
781 netname2host NEW: Secure RPC
782 netname2user NEW: Secure RPC
783 nexttoward NEW: ISO C 9x
784 nexttowardf NEW: ISO C 9x
785 nexttowardl NEW: ISO C 9x
786 nftw NEW: Unix98
787 nftw64 NEW: LFS
788 open64 NEW: LFS
789 passwd2des NEW: Secure RPC
790 pow10 NEW: GNU ext.
791 pow10f NEW: GNU ext.
792 pow10l NEW: GNU ext.
793 pread NEW: Unix98
794 pread64 NEW: LFS
795 printf_size NEW: GNU ext.
796 printf_size_info NEW: GNU ext.
797 profil_counter REMOVED
798 pthread_mutexattr_getkind_np REPLACED
799 pthread_mutexattr_setkind_np REPLACED
800 ptsname NEW: Unix98 PTY
801 ptsname_r NEW: Unix98 PTY
802 putc_locked REMOVED
803 putchar_locked REMOVED
804 putgrent NEW: GNU ext.
805 putmsg NEW: STREAMS
806 putpmsg NEW: STREAMS
807 pututxline NEW: Unix98
808 pwrite NEW: Unix98
809 pwrite64 NEW: LFS
810 readdir64 NEW: LFS
811 readdir64_r NEW: LFS
812 remquo NEW: ISO C 9x
813 remquof NEW: ISO C 9x
814 remquol NEW: ISO C 9x
815 round NEW: ISO C 9x
816 roundf NEW: ISO C 9x
817 roundl NEW: ISO C 9x
818 rtime NEW: GNU ext.
819 scalbln NEW: ISO C 9x
820 scalblnf NEW: ISO C 9x
821 scalblnl NEW: ISO C 9x
822 scandir64 NEW: LFS
823 sendfile NEW: kernel
824 setcontext NEW: Unix98
825 setrlimit64 NEW: LFS
826 setutxent NEW: Unix98
827 sighold NEW: Unix98
828 sigignore NEW: Unix98
829 sigqueue NEW: POSIX.1b
830 sigrelse NEW: Unix98
831 sigset NEW: POSIX.1b
832 sigtimedwait NEW: POSIX.1b
833 sigwaitinfo NEW: POSIX.1b
834 sincos NEW: GNU ext.
835 sincosf NEW: GNU ext.
836 sincosl NEW: GNU ext.
837 statfs64 NEW: LFS
838 statvfs NEW: Unix98
839 statvfs64 NEW: LFS
840 strcasestr NEW: GNU ext.
841 strtoimax NEW: ISO C 9x
842 strtoumax NEW: ISO C 9x
843 strverscmp NEW: GNU ext.
844 svcauthdes_stats NEW: Secure RPC
845 svcunix_create NEW: sunrpc etx
846 svcunixfd_create NEW: sunrpc ext
847 swapcontext NEW: Unix98
848 tcgetsid NEW: Unix98 PTY
849 tdestroy NEW: GNU ext.
850 tgamma NEW: ISO C 9x
851 tgammaf NEW: ISO C 9x
852 tgammal NEW: ISO C 9x
853 tmpfile64 NEW: LFS
854 trunc NEW: ISO C 9x
855 truncate64 NEW: LFS
856 truncf NEW: ISO C 9x
857 truncl NEW: ISO C 9x
858 umount2 NEW: kernel
859 unlockpt NEW: Unix98 PTY
860 updwtmpx NEW: Unix98
861 user2netname NEW: Secure RPC
862 utmpxname NEW: Unix98
863 versionsort NEW: GNU ext.
864 versionsort64 NEW: GNU ext.
865 waitid NEW: Unix98
866 wcscasecmp NEW: GNU ext.
867 wcsncasecmp NEW: GNU ext.
868 wcsnlen NEW: GNU ext.
869 wcstoimax NEW: ISO C 9x
870 wcstoll NEW: ISO C 9x
871 wcstoull NEW: ISO C 9x
872 wcstoumax NEW: ISO C 9x
873 wcswcs NEW: Unix98
874 wordexp NEW: POSIX.2
875 wordfree NEW: POSIX.2
876 write_profiling REMOVED
877 xdecrypt NEW: Secure RPC
878 xdr_authdes_cred NEW: Secure RPC
879 xdr_authdes_verf NEW: Secure RPC
880 xdr_cryptkeyarg NEW: Secure RPC
881 xdr_cryptkeyarg2 NEW: Secure RPC
882 xdr_cryptkeyres NEW: Secure RPC
883 xdr_getcredres NEW: Secure RPC
884 xdr_key_netstarg NEW: Secure RPC
885 xdr_key_netstres NEW: Secure RPC
886 xdr_keybuf NEW: Secure RPC
887 xdr_keystatus NEW: Secure RPC
888 xdr_netnamestr NEW: Secure RPC
889 xdr_sizeof NEW: Secure RPC
890 xdr_unixcred NEW: sunrpc ext
891 xencrypt NEW: Secure RPC
892 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
893 \f
894 Version 2.0.6
896 * more bug fixes
898 \f
899 Version 2.0.5
901 * more bug fixes
903 * inet_ntoa is thread-safe
905 * updwtmp is moved from libutil to libc
907 * rewrite of cbrt function
909 * update of timezone data
910 \f
911 Version 2.0.4
913 * more bug fixes
914 \f
915 Version 2.0.3
917 * more bug fixes
918 \f
919 Version 2.0.2
921 * more bug fixes
923 * add atoll function
925 * fix complex problems in Berkeley DB code
927 * fix math functions
928 \f
929 Version 2.0.1
931 * fixed lots of header problems (especially Linux/GNU specific)
933 * dynamic loader preserves all registers
935 * Roland McGrath provided support for handling of auxiliary objects in
936 the ELF dynamic loader.
938 * support for parallel builds is improved
939 \f
940 Version 2.0
942 * GNU extensions are no longer declared by default. To enable them you
943 must define the macro `_GNU_SOURCE' in your program or compile with
944 `-D_GNU_SOURCE'.
946 * The library has changed from using GNU ld symbol aliases to using weak
947 symbols where available. The ELF object file format supports weak
948 symbols; GNU ld also supports weak symbols in the a.out format. (There
949 is also now support for other GNU ld extensions in ELF. Use the
950 `--with-elf' option to configure to indicate you have ELF, and
951 `--with-gnu-ld' if using GNU ld.) This change resulted in the deletion
952 of many files which contained only symbol aliases, reducing the size of
953 the source and the compiled library; many other files were renamed to
954 less cryptic names previously occupied by the symbol alias files.
955 There is a new header file <elf.h> for programs which operate on
956 files in the ELF format.
958 * Converted to Autoconf version 2, so `configure' has more options.
959 Run `configure --help' to see the details.
961 * The library can now be configured to build profiling, highly-optimized
962 (but undebuggable), and/or shared libraries (ELF with GNU ld only). The
963 `--enable-profile', `--enable-omitfp', and `--enable-shared' options to
964 `configure' enable building these extra libraries. The shared library is
965 built by default when using both ELF and GNU ld. When shared libraries
966 are enabled, the new library `-ldl' is available for arbitrary run-time
967 loading of shared objects; its interface is defined in <dlfcn.h>. The
968 new header file <link.h> gives access to the internals of the run-time
969 dynamic linker, `ld.so'. The shell script `ldd' is similar to the
970 application of same name on other systems and it provides information
971 about dynamically linked binaries.
973 * The C library now provides the run-time support code for profiling
974 executables compiled with `-pg'. Programs can control the profiling code
975 through the interface in <sys/gmon.h>. The `gmon.out' files written by
976 the GNU C library can be read only by GNU `gprof' (from GNU binutils);
977 the support for this file format was contributed by David Mosberger-Tang.
979 * The math code has been replaced with a math library based on fdlibm from
980 Sun, and modified by JT Conklin and Ulrich Drepper with i387 support, by
981 Ian Taylor with `float' functions and by Ulrich Drepper with `long double'
982 functions. The math functions now reside in a separate library, so
983 programs using them will need to use `-lm' their linking commands.
985 * John C. Bowman contributed optimized ix87 assembler inline functions.
987 * Ulrich Drepper has contributed support for an `/etc/nsswitch.conf'
988 mechanism similar to that found in Solaris 2. This is now used for the
989 group, passwd, hosts, networks, services, protocols, rpc, ethers,
990 shadow, netgroup, publickey, and alias databases. The `nsswitch.conf'
991 file controls what services are used for each individual database. This
992 works by loading shared libraries with names specified in `nsswitch.conf',
993 so service modules can be changed or added at any time without even
994 relinking any program. Currently there are the file, db, and NIS based
995 NSS services available.
997 * The new functions `strtoq' and `strtouq' parse integer values from
998 strings, like `strtol' and `strtoul', but they return `long long int' and
999 `unsigned long long int' values, respectively (64-bit quantities).
1001 * The new functions `strtof' and `strtold' parse floating-point values from
1002 strings, like `strtod', but they return `float' and `long double' values,
1003 respectively (on some machines `double' and `long double' are the same).
1005 * Ulrich Drepper has contributed new implementations of the floating-point
1006 printing and reading code used in the `printf' family of functions and
1007 `strtod', `strtof', and `strtold'. These new functions are perfectly
1008 accurate, and much faster than the old ones.
1010 * The implementation of the POSIX locale model was completely rewritten by
1011 Ulrich Drepper. This includes the new programs `localedef' and `locale'
1012 to compile the POSIX locale definition.
1014 * The former dummy implementations of the strcoll and strxfrm function are
1015 now replaced by fully functional code contributed by Ulrich Drepper. The
1016 collation information comes from the POSIX locale definitions.
1018 * The new header <langinfo.h> defines an interface for accessing
1019 various locale-dependent data (using the locale chosen with `setlocale').
1021 * Ulrich Drepper has contributed a new suite of functions for operation on
1022 wide-character and multibyte-character strings, in <wchar.h>;
1023 and classification and case conversion of wide characters, in <wctype.h>.
1024 These new functions are conforming to the ISO C, Amendement 1 specification.
1026 * There is now a second implementation of the standard I/O library available.
1027 It comes from GNU libg++ as was written by Per Bothner, heavily modified
1028 by Hongjiu Lu and made thread safe by Ulrich Drepper.
1030 * You can now use positional parameter specifications in format strings
1031 for the `printf' and `scanf' families of functions. For example,
1032 `printf ("Number %2$d, Mr %1$s\n", "Jones", 6);'' prints
1033 ``Number 6, Mr Jones''. This is mainly useful when providing different
1034 format strings for different languages, whose grammars may dictate
1035 different orderings of the values being printed. To support this
1036 feature, the interface for `register_printf_handler' has changed; see
1037 the header file <printf.h> for details.
1039 * The `printf' and `scanf' families of functions now understand a new
1040 formatting flag for numeric conversions: the ' flag (e.g. %'d or %'f) says
1041 to group numbers as indicated by the locale; for `scanf' and friends, this
1042 says to accept as valid only a number with all the proper grouping
1043 separators in the right places. In the default "C" locale, numbers are
1044 not grouped; but locales for specific countries will define the usual
1045 conventions (i.e. separate thousands with `,' in the US locale).
1047 * The pgrp functions have been regularized, slightly incompatibly but much
1048 less confusingly. The core functions are now `getpgid' and `setpgid',
1049 which take arguments for the PID to operate on; the POSIX.1 `getpgrp' (no
1050 argument) and BSD `setpgrp' (identical to `setpgid') functions are
1051 provided for compatibility. There is no longer an incompatible `getpgrp'
1052 with an argument declared under _BSD_SOURCE; no BSD code uses it.
1054 * The new header file <fts.h> and suite of functions simplify programs that
1055 operate on directory trees. This code comes from 4.4 BSD.
1057 * The resolver code has been updated from the BIND 4.9.5-P1 release.
1058 Parts of the code were heavily modified by Ulrich Drepper to fit in the
1059 NSS scheme used in glibc.
1061 * There is a new malloc debugging hook `__memalign_hook'.
1063 * There are new typedefs `ushort' for `unsigned short int' and `uint' for
1064 `unsigned int' in <sys/types.h>. These are for compatibility only and
1065 their use is discouraged.
1067 * The `-lmcheck' library to enable standard malloc debugging hooks is now
1068 done differently, so that it works even without GNU ld.
1070 * New function `euidaccess' checks allowed access to a file like `access',
1071 but using the effective IDs instead of the real IDs.
1073 * The time zone data files have been updated for the latest and greatest
1074 local time conventions of the countries of the world.
1076 * The new function `dirfd' extracts the file descriptor used by a DIR stream;
1077 see <dirent.h>.
1079 * The new functions `ecvt', `fcvt', and `gcvt' provide an obsolete interface
1080 for formatting floating-point numbers. They are provided only for
1081 compatibility; new programs should use `sprintf' instead. There are
1082 also equivalent function for the `long double' floating-point type and
1083 all functions also exist in a reentrant form.
1085 * The new auxiliary library `-lutil' from 4.4 BSD contains various
1086 functions for maintaining the login-record files (primarily of use to
1087 system programs such as `login'), and convenient functions for
1088 allocating and initializing a pseudo-terminal (pty) device.
1090 * Ulrich Drepper has contributed new support for System V style
1091 shared memory and IPC on systems that support it.
1093 * Ulrich Drepper has contributed several miscellaneous new functions found
1094 in System V: The `hsearch' family of functions provide an effective
1095 implementation of hash tables; `a64l' and `l64a' provide a very simple
1096 binary to ASCII mapping; `drand48' and friends provide a 48-bit random
1097 number generator.
1099 * Ulrich Drepper has contributed new reentrant counterparts for the
1100 `random' and `hsearch' families of functions; `random_r', `hsearch_r', etc.
1102 * Ulrich Drepper has contributed new, highly-optimized versions of several
1103 string functions for the i486/Pentium family of processors.
1105 * Ulrich Drepper has updated the Linux-specific code, based largely
1106 on work done in Hongjiu Lu's version of GNU libc for Linux.
1107 The GNU library now supports Linux versions 2.0.10 and later,
1108 using the ELF object file format (i[3456]86-*-linux).
1110 * Andreas Schwab has ported the C library to Linux/m68k (m68k-*-linux).
1112 * David Mosberger-Tang and Richard Henderson have ported the C library
1113 to Linux/Alpha (alpha-*-linux). Richard Henderson contributed the
1114 dynamic linking support for ELF/Alpha.
1116 * Richard Henderson contributed several Alpha optimized assembler function
1117 for arithmetic and string handling.
1119 * Ulrich Drepper has contributed a new set of message catalog functions to
1120 support multiple languages using the <libintl.h> interface, for use with
1121 his new package GNU gettext. Translation volunteers have contributed
1122 catalogs of the library's messages in Spanish, German, and Korean.
1124 * For compatibility with XPG4, Ulrich Drepper has contributed the `gencat'
1125 program and the `catgets' function for reading the catalog files it
1126 creates. (The <libintl.h> interface is preferred; we include the
1127 <nl_types.h> interface using `catgets' only for source compatibility with
1128 programs already written to use it.)
1130 * New header file <values.h> gives SVID-compatible names for <limits.h>
1131 constants.
1133 * Various new macros, declarations, and small header files for compatibility
1134 with 4.4 BSD.
1136 * New function `group_member' is a convenient way to check if a process has
1137 a given effective group ID.
1139 * When using GCC 2.7 and later, the socket functions are now declared in a
1140 special way so that passing an argument of type `struct sockaddr_in *',
1141 `struct sockaddr_ns *', or `struct sockaddr_un *' instead of the generic
1142 `struct sockaddr *' type, does not generate a type-clash warning.
1144 * New function `error' declared in header file <error.h> is a convenient
1145 function for printing error messages and optionally exiting; this is the
1146 canonical function used in GNU programs. The new functions `err', `warn',
1147 and friends in header file <err.h> are the canonical 4.4 BSD interface for
1148 doing the same thing.
1150 * The <glob.h> interface has several new flags from 4.4 BSD that extend the
1151 POSIX.2 `glob' function to do ~ and {...} expansion.
1153 * New function `unsetenv' complements `setenv' for compatibility with 4.4 BSD.
1154 `clearenv' which is used in POSIX.9 is also available.
1156 * New function `getsid' returns session ID number on systems that support it.
1158 * We have incorporated the 4.4 BSD `db' library (version 1.85). New header
1159 files <db.h> and <mpool.h> provide a rich set of functions for several
1160 types of simple databases stored in memory and in files, and <ndbm.h> is
1161 an old `ndbm'-compatible interface using the `db' functions. Link with
1162 `-ldb' to get these functions.
1164 * New macro `strdupa' copies a string like `strdup', but uses local stack
1165 space from `alloca' instead of dynamic heap space from `malloc'.
1167 * New function `strnlen' is like `strlen' but searches only a given maximum
1168 number of characters for the null terminator. `stpncpy', `strndup' and
1169 `strndupa' are similar variants for the `stpcpy', `strdup' and `strdupa'
1170 function.
1172 * New function `statfs' in header <sys/statfs.h>.
1174 * The new <argz.h> and <envz.h> interfaces contributed by Miles Bader
1175 provide convenient functions for operating on blocks of null-terminated
1176 strings.
1178 * A new suite of functions in <utmp.h> handle all the details of reading
1179 and writing the utmp file.
1181 * An implementation of the NIS/YP(tm) based NSS service was contributed by
1182 Thorsten Kukuk.
1184 * Paul Eggert and Ulrich Drepper modified the `strftime' function to be
1185 completely POSIX compliant and also implemented the extended functionality
1186 to handle alternate digit representation and alternate era date formats.
1188 * Ulrich Drepper provided an implementation of the `strptime' function
1189 defined in XPG4.2 which transforms a string into a `struct tm' value.
1191 * Paul Eggert provided the tzselect shell script as part of the timezone
1192 code. The shell script makes it easy to select the correct timezone
1193 specification.
1195 * The implementation of the malloc family of functions is completely replaced
1196 by a new implementation by Doug Lea with many improvements by Wolfram Gloger.
1197 The implementation uses the mmap function (if available) and it is
1198 optimized for the use in multi threaded programs.
1200 * Ulrich Drepper contributed a MD5 "encryption" for the crypt family of
1201 functions. This new functionality is usable by specifying a special
1202 salt string and it is compatible with implementation on *BSD systems.
1204 * Lots of functions from the XPG4.2 standard were added by Ulrich Drepper:
1205 `getsubopt' to handle second level command line options, `bsd_signal'
1206 to access BSD style `signal' functionality, the obsolete `regexp' style
1207 expression matcher.
1209 * the `lchown' function is available on system which support this
1210 functionality.
1212 * The implementation of the shadow password handling function was contributed
1213 by Ulrich Drepper.
1215 * David Mosberger-Tang changed the SunRPC implementation to be 64bit safe.
1217 * POSIX.1g support was added. The <sys/select.h> header is available,
1218 `isfdtype' and `pselect' are implemented. Craig Metz contributed an
1219 implementation of `getaddrinfo'.
1220 \f
1221 Version 1.09
1223 * For cross-compilation you should now set `BUILD_CC' instead of `HOST_CC'.
1225 * New header file <fstab.h> and new functions `getfsspec', `getfsent' and
1226 friends, for parsing /etc/fstab. This code comes from 4.4 BSD.
1228 * The new function `daemon' from 4.4 BSD is useful for server programs that
1229 want to put themselves in the background.
1231 * Joel Sherrill has contributed support for several standalone boards that
1232 run without an operating system.
1234 * `printf', `scanf' and friends now accept a `q' type modifier for long
1235 long int as well as `ll'. Formats using these might be `%qu' or `%lld'.
1237 * All of the code taken from BSD (notably most of the math and networking
1238 routines) has been updated from the BSD 4.4-Lite release.
1240 * The resolver code has been updated from the BIND-4.9.3-BETA9 release.
1242 * The new functions `getdomainname' and `setdomainname' fetch or change the
1243 YP/NIS domain name. These are system calls which exist on systems which
1244 have YP (aka NIS).
1246 * The time zone data files have been updated for the latest international
1247 conventions.
1249 * The SunRPC programs `portmap' and `rpcinfo' are now installed in
1250 $(sbindir) (usually /usr/local/sbin) instead of $(bindir).
1251 \f
1252 Version 1.08
1254 * The C library now includes support for Sun RPC, from Sun's free
1255 RPCSRC-4.0 distribution. The `portmap', `rpcinfo', and `rpcgen' programs
1256 are included. (There is still no support for YP.)
1258 * Tom Quinn has contributed a port of the C library to SGI machines running
1259 Irix 4 (mips-sgi-irix4).
1261 * The new `lockf' function is a simplified interface to the locking
1262 facilities of `fcntl', included for compatibility.
1264 * New time functions `timegm', `timelocal', and `dysize' for compatibility.
1266 * New header file <sys/timeb.h> and new function `ftime' for compatibility.
1268 * New header files <poll.h> and <sys/poll.h> and new function `poll' for
1269 compatibility.
1271 * The error message printed by `assert' for a failed assertion now includes
1272 the name of the program (if using GNU ld) and the name of the calling
1273 function (with versions of GCC that support this).
1275 * The `psignal' function is now declared in <signal.h>, not <stdio.h>.
1277 * The library now includes the <sys/mman.h> header file and memory
1278 management functions `mmap', `munmap', `mprotect', `msync', and
1279 `madvise', on systems that support those facilities.
1281 * The interface for `mcheck' has changed slightly: the function called to
1282 abort the program when an allocation inconsistency is detected now takes
1283 an argument that indicates the type of failure. The new function
1284 `mprobe' lets you request a consistency check for a particular block at
1285 any time (checks are normally done only when you call `free' or `realloc'
1286 on a block).
1288 * It is now possible to easily cross-compile the C library, building on one
1289 system a library to run on another machine and/or operating system. All
1290 you need to do is set the variable `HOST_CC' in `configparms' to the
1291 native compiler for programs to run on the machine you are building on (a
1292 few generator programs are used on Unix systems); set `CC' to the
1293 cross-compiler.
1295 * The new function `fexecve' (only implemented on the GNU system) executes
1296 a program file given a file descriptor already open on the file.
1297 \f
1298 Version 1.07
1300 * Brendan Kehoe has contributed most of a port to the DEC Alpha
1301 running OSF/1 (alpha-dec-osf1). He says it is 75% complete.
1303 * You can set the variable `libprefix' in `configparms' to specify a prefix
1304 to be prepended to installed library files; this makes it easy to install
1305 the GNU C library to be linked as `-lgnuc' or whatever.
1307 * The new `stpncpy' is a cross between `stpcpy' and `strncpy': It
1308 copies a limited number of characters from a string, and returns the
1309 address of the last character written.
1311 * You no longer need to check for whether the installed `stddef.h' is
1312 compatible with the GNU C library. configure now checks for you.
1314 * You can now define a per-stream `fileno' function to convert the
1315 stream's cookie into an integral file descriptor.
1317 * ``malloc (0)'' no longer returns a null pointer. Instead, it
1318 allocates zero bytes of storage, and returns a unique pointer which
1319 you can pass to `realloc' or `free'. The behavior is undefined if
1320 you dereference this pointer.
1322 * The C library now runs on Sony NEWS m68k machines running either
1323 NewsOS 3 or NewsOS 4.
1325 * The new `syscall' function is a system-dependent primitive function
1326 for invoking system calls. It has the canonical behavior on Unix
1327 systems, including unreliable return values for some calls (such as
1328 `pipe', `fork' and `getppid').
1330 * The error code `EWOULDBLOCK' is now obsolete; it is always defined
1331 to `EAGAIN', which is the preferred name. On systems whose kernels
1332 use two distinct codes, the C library now translates EWOULDBLOCK to
1333 EAGAIN in every system call function.
1334 \f
1335 Version 1.06
1337 * The GNU C Library Reference Manual is now distributed with the library.
1338 `make dvi' will produce a DVI file of the printed manual.
1339 `make info' will produce Info files that you can read on line using C-h i
1340 in Emacs or the `info' program.
1341 Please send comments on the manual to bug-glibc-manual@gnu.org.
1343 * The library now supports SVR4 on i386s (i386-unknown-sysv4).
1345 * Brendan Kehoe has contributed a port to Sun SPARCs running Solaris 2.
1347 * Jason Merrill has contributed a port to the Sequent Symmetry running
1348 Dynix version 3 (i386-sequent-dynix).
1350 * The library has been ported to i386s running SCO 3.2.4 (also known as SCO
1351 ODT 2.0; i386-unknown-sco3.2.4) or SCO 3.2 (i386-unknown-sco3.2).
1353 * New function `memory_warnings' lets you arrange to get warnings when
1354 malloc is running out of memory to allocate, like Emacs gives you.
1356 * The C library now contains the relocating allocator used in Emacs 19 for
1357 its editing buffers. This allocator (ralloc) minimizes allocation
1358 overhead and fragmentation by moving allocated regions around whenever it
1359 needs to. You always refer to a ralloc'd region with a "handle" (a
1360 pointer to a pointer--an object of type `void **').
1362 * There is a new `printf' format: `%m' gives you the string corresponding
1363 to the error code in `errno'.
1365 * In `scanf' formats, you can now use `%as' or `%a[' to do the normal `%s'
1366 or `%[' conversion, but instead of filling in a fixed-sized buffer you
1367 pass, the `a' modifier says to fill in a `char **' you pass with a
1368 malloc'd string.
1370 * The `fnmatch' function supports the new flag bits `FNM_LEADING_DIR' and
1371 `FNM_CASEFOLD'. `FNM_LEADING_DIR' lets a pattern like `foo*' match a
1372 name like `foo/bar'. `FNM_CASEFOLD' says to ignore case in matching.
1374 * `mkstemp' is a traditional Unix function to atomically create and open a
1375 uniquely-named temporary file.
1376 \f
1377 Version 1.05
1379 * The standard location for the file that says what the local timezone is
1380 has changed again. It is now `/usr/local/etc/localtime' (or more
1381 precisely, `${prefix}/etc/localtime') rather than `/etc/localtime'.
1383 * The distribution no longer contains any files with names longer than 14
1384 characters.
1386 * `struct ttyent' has two new flag bits: TTY_TRUSTED and TTY_CONSOLE.
1387 These are set by the new `trusted' and `console' keywords in `/etc/ttys'.
1389 * New functions `ttyslot' and `syslog' from 4.4 BSD.
1390 \f
1391 Version 1.04
1393 * The configuration process has changed quite a bit. The `configure'
1394 script is now used just like the configuration scripts for other GNU
1395 packages. The `sysdeps' directory hierarchy is much rearranged.
1396 The file `INSTALL' explains the new scheme in detail.
1398 * The header files no longer need to be processed into ANSI C and
1399 traditional C versions. There is just one set of files to install, and
1400 it will work with ANSI or old C compilers (including `gcc -traditional').
1402 * Brendan Kehoe and Ian Lance Taylor have ported the library to the
1403 MIPS DECStation running Ultrix 4.
1405 * The Sun 4 startup code (crt0) can now properly load SunOS 4 shared libraries.
1406 Tom Quinn contributed the initial code. The GNU C library can NOT yet be
1407 made itself into a shared library.
1409 * Yet further improved support for the i386, running 4.3 BSD-like systems
1410 (such as Mach 3 with the Unix single-server), or System V.
1412 * New function `strncasecmp' to do case-insensitive string comparison
1413 with limited length.
1415 * New function `strsep' is a reentrant alternative to `strtok'.
1417 * New functions `scandir' and `alphasort' for searching directories.
1419 * New function `setenv' is a better interface to `putenv'.
1421 * Ian Lance Taylor has contributed an implementation of the SVID `ftw'
1422 function for traversing a directory tree.
1424 * The GNU obstack package is now also part of the C library.
1425 The new function `open_obstack_stream' creates a stdio stream that
1426 writes onto an obstack; `obstack_printf' and `obstack_vprintf' do
1427 formatted output directly to an obstack.
1429 * Miscellaneous new functions: reboot, nice, sigaltstack (4.4 BSD only),
1430 cfmakeraw, getusershell, getpass, swab, getttyent, seteuid, setegid.
1432 * `FNM_FILE_NAME' is another name for `FNM_PATHNAME', used with `fnmatch'.
1434 * The new functions `strfry' and `memfrob' do mysterious and wonderful
1435 things to your strings.
1437 * There are some new test programs: test-fseek, testmb, and testrand.
1439 * Some work has been done to begin porting the library to 4.4 BSD and Linux.
1440 These ports are not finished, but are a good starting place for really
1441 supporting those systems.
1443 * `/etc/localtime' is now the standard location for the file that says what
1444 the local timezone is, rather than `/usr/local/lib/zoneinfo/localtime'.
1445 This follows the general principle that `/etc' is the place for all local
1446 configuration files.
1448 * The C library header files now use `extern "C"' when used by the C++
1449 compiler, so the C library should now work with C++ code.
1451 * The header file <bstring.h> is gone. <string.h> now declares bcopy,
1452 bcmp, bzero, and ffs. (Update: nowadays these functions are declared
1453 in <strings.h>.)
1455 * Mike Haertel (of GNU e?grep and malloc fame) has written a new sorting
1456 function which uses the `merge sort' algorithm, and is said to be
1457 significantly faster than the old GNU `qsort' function. Merge sort is
1458 now the standard `qsort' function. The new algorithm can require a lot
1459 of temporary storage; so, the old sorting function is called when the
1460 required storage is not available.
1462 * The C library now includes Michael Glad's Ultra Fast Crypt, which
1463 provides the Unix `crypt' function, plus some other entry points.
1465 * The code and header files taken from 4.4 BSD have been updated with the
1466 latest files released from Berkeley.
1467 \f
1468 ----------------------------------------------------------------------
1469 Copyright information:
1471 Copyright (C) 1992-1999,2000,2001,2002 Free Software Foundation, Inc.
1473 Permission is granted to anyone to make or distribute verbatim copies
1474 of this document as received, in any medium, provided that the
1475 copyright notice and this permission notice are preserved,
1476 thus giving the recipient permission to redistribute in turn.
1478 Permission is granted to distribute modified versions
1479 of this document, or of portions of it,
1480 under the above conditions, provided also that they
1481 carry prominent notices stating who last changed them.
1482 \f
1483 Local variables:
1484 version-control: never
1485 End: