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1 GNU C Library NEWS -- history of user-visible changes. 2004-12-19
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 now 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. Implemented by Ulrich Drepper.
32 * Reverse lookups of IPv6 addresses does not use bit string or .ip6.int
33 lookups anymore unless explicitly requested. Implemented by Ulrich Drepper.
35 * Namespaces in ld.so are implemented. DSOs can be loaded in separate
36 namespaces using the new function dlmopen(). This feature is of course,
37 like most other dynamic loading functionality, not available in statically
38 linked applications. Implemented by Ulrich Drepper.
40 * Low-overhead boundary checking variants of string and some stdio functions
41 were added. These are to be used in conjunction with a gcc patch by
42 Jakub Jelinek which adds calls to these functions if possible.
43 Implemented by Jakub Jelinek and Ulrich Drepper.
45 * Old code for several operating systems and machine architectures that
46 have not been in working condition in a long time have been removed from
47 the main source tree maintained by the GNU C Library's maintainers.
48 These files are now reside in the separate `ports' source module
49 that is usable as an add-on when building the library.
50 \f
51 Version 2.3.3
53 * New functions `dladdr1' and `dlinfo' in <dlfcn.h> provide more ways to
54 interrogate the dynamic linker, compatible with the Solaris interface.
56 * ELF thread-local storage support (TLS) now works on PowerPC and PowerPC64;
57 implemented by Paul Mackerras, Steven Munroe, and Roland McGrath.
59 * getifaddrs now uses the netlink interface on Linux to get its information.
60 Implemented by Thorsten Kukuk.
62 * getaddrinfo now implements AI_V4MAPPED, AI_ALL, and AI_ADDRCONF.
63 Implemented by Ulrich Drepper.
65 * support for non-executable stacks on x86 has been added. Changes mostly
66 by Roland McGrath.
68 * regex is now much faster for multibyte locales. Changes by Jakub Jelinek
69 and Ulrich Drepper.
71 * getaddrinfo now performs destination address selection according to
72 RFC 3484.
73 \f
74 Version 2.3.2
76 * Thread-safe interfaces for many functions that access locale data
77 were added in version 2.3, but these features were omitted from NEWS.
78 Many functions have variants with an `_l' suffix that take a `locale_t'
79 object as a parameter rather than consulting the current locale.
80 The new functions `newlocale', `duplocale', and `freelocale' in <locale.h>
81 create and maintain `locale_t' objects. Additionally, the new function
82 `uselocale' sets "the current locale" (as used by functions not so
83 parameterized) set for an individual thread. These features were added
84 in version 2.3, implemented by Ulrich Drepper and Roland McGrath.
86 * The functions getresuid, getresgid, setresuid, and setresgid, which
87 have long been available on Linux, are now declared in <unistd.h>
88 and are now also available on the Hurd.
90 * ELF thread-local storage support (TLS) now works on x86-64.
92 * The new dynamic string token $LIB is expanded in shared library names.
93 This normally expands to lib, but on some 64-bit platforms to lib64 instead.
95 * Aldy Hernandez contributed complete software floating point support for
96 PowerPC machines with no FPU.
98 * fexecve is implemented on Linux.
100 * The `btowc' function should work at least twice as fast due to
101 specialized callbacks in the iconv modules. Implemented by Bruno Haible.
103 * With approriate thread add-ons cancelable functions are now implemented
104 in libc.so as well. No need to call the function in libpthread. This
105 change allowed to finally disable the incorrect and expensive handling
106 of weak definition in ld.so.
108 * Yet more PLT entries in libc.so have been removed. We finally arrived
109 at the bare minimum. Startup times improved appropriately.
111 * Support for the new Linux/x86 system call interface was added. The
112 AT_SYSINFO auxiliary vector entry is recognized and handled.
113 \f
114 Version 2.3
116 * Masahide Washizawa contributed iconv modules for IBM1163 and IBM1164
117 charsets.
119 * iconv (the program and the interface) now accepts empty names (excluding
120 options like //TRANSLIT) to mean "use charset of current locale".
122 * localedef can now transliterate characters in strings which are not in
123 the provided charmap. The information from the input locale is used.
125 * Prelinking support was added for ELF targets. This requires additional
126 tools and recent versions of the GNU binutils. Contributed by Jakub Jelinek.
128 * Read-only stdio streams now use mmap to speed up operation by eliminating
129 copying and buffer underflows. To use add 'm' to the mode string of
130 the fopen/fdopen/freopen call. Implemented by Ulrich Drepper.
132 * The malloc functions were completely rewritten by Wolfram Gloger based
133 on Doug Lea's malloc-2.7.0.c.
135 * Isamu Hasegawa contributed a completely new and POSIX-conformant
136 implementation of regex.
138 * Bruno Haible upgraded the iconv and locale implementation to support
139 Unicode 3.2.
141 * Contents of the LC_* and LANG environment variables in the CEN style are
142 not recognized anymore. It never was used. Change by Ulrich Drepper.
144 * The runtime (ld.so, libc, libpthread for Linux) now can handle the ELF
145 thread-local storage (TLS) ABI on some platforms.
146 Changes by Ulrich Drepper. SH support by Kaz Kojima.
148 * Bruno Haible contributed iconv converters for ISO-2022-JP-3, SHIFT JIS-X0213,
149 EUC-JISX0213, and TSCII.
151 * New header <ifaddrs.h> with functions `getifaddrs' and `freeifaddrs':
152 BSD-compatible interface for getting all network interface addresses.
153 Implementation for IPv4 by Roland McGrath.
155 * Loading of locale data is faster due to the introduction of a locale
156 archive. Implemented by Roland McGrath and Ulrich Drepper.
158 * Startup times are significantly reduced by not using exported functions
159 inside the library itself. Changes by Jakub Jelinek, Roland McGrath,
160 and Ulrich Drepper.
162 * Steven Munroe contributed a port to PowerPC64/Linux.
163 \f
164 Version 2.2.6
166 * The Hurd now uses the GNU libio implementation of stdio rather than the
167 old GNU stdio implementation, and uses a new ABI (libc.so.0.3).
169 * The Hurd on x86 now has the `ioperm' function and <sys/io.h> header file
170 with the same behavior as the Linux system call of the same name.
171 \f
172 Version 2.2.5
174 * Stephen Moshier implemented log2, log10, powl and cbrtl for the
175 128-bit long double format.
177 * Masahide Washizawa contributed iconv modules for IBM1132, IBM1133, IBM1160,
178 IBM1161, and IBM1162 charsets.
180 * Andreas Jaeger contributed a port to x86-64/Linux.
182 * Peter Bruin contributed a port to PowerPC/Hurd.
184 * libc functions using I/O streams now can handle wide-oriented streams
185 as well.
187 * optimizations in the dynamic linker. Binaries created by recent binutils
188 versions start up quicker due to reduced time spent on relocations.
190 * Support for use of gcc3 added by Jakub Jelinek and HJ Lu.
191 \f
192 Version 2.2.4
194 * Stephen Moshier implemented cosh, expm1, log1p, acos, sinh, tanh,
195 asinh, atanh, j0 for the 128-bit long double format.
197 * Bruno Haible updated all the code handling Unicode in some form to
198 support Unicode 3.1.
200 * Speed of regex for single-byte locales is back to previous levels.
201 Patch by Isamu Hasegawa.
203 * Alpha, SPARC, and IA-64 now also using floating stacks.
205 * Startup time of internationalized applications greatly improved through
206 iconv cache. Use iconvconfig to generate the cache file.
207 Contributed by Ulrich Drepper.
209 * The IA-64 specific part of ld.so was rewritten to eliminate some pretty
210 severe performance problems. Patch by David Mosberger.
212 * The Hurd port got a lot more functionality like AIO, various stdio
213 extensions, etc. Mainly done by Roland McGrath.
215 * mtrace can now lookup symbols in shared libraries.
216 \f
217 Version 2.2.3
219 * Intel's IA-64 math library is largely integrated. It provides fast and
220 accurate implementatations for most basic and standard math functions
221 in float, double, and long double format.
223 * Stephen Moshier implemented j0, j1, jn, y0, y1, yn, lgamma, erf, erfc,
224 and asin for the 96-bit long double format and asin, log, tan for the
225 128-bit long double format.
227 * The beginning of a last-bit accurate math library by IBM Haifa were added.
228 The basic double functions exist today. Contributed by Abraham Ziv
229 <ziv@il.ibm.com>, Moshe Olshansky <olshansk@il.ibm.com>, Ealan Henis
230 <ealan@il.ibm.com>, and Anna Reitman <reitman@il.ibm.com>.
232 * An asynchronous name lookup library was added. The interface is designed
233 after POSIX AIO. The proposal was circulated beforehand to get comments.
234 No negative ones came in. Implemented by Ulrich Drepper.
236 * Port to S390/64bit contributed by Martin Schwidefsky
237 <schwidefsky@de.ibm.com>.
239 * David Mosberger <davidm@hpl.hp.com> implemented the setcontext family
240 of functions for Linux/IA-64.
242 * The RPC code is now thread safe. Threads can now use the same service
243 of different services at the same time. Patch by Eric Norum
244 <eric.norum@usask.ca> with some help by Ulrich Drepper.
246 * Martin Schwidefsky <schwidefsky@de.ibm.com> implemented the setcontext
247 family of functions for Linux/S390.
249 * Ulrich Drepper <drepper@redhat.com> implemented the setcontext family
250 of functions for Linux/x86.
252 * Port to Linux/CRIS contributed by Axis Communications.
253 \f
254 Version 2.2.2
256 * Lots of headers were cleaned up. Using the tool in the conform/ subdir
257 we can now check for namespace violations and missing declarations. The
258 result is that almost all headers are now Unix-compliant (as defined in
259 the upcoming XPG6). The negative side is that some programs might need
260 corrections, too, if they depend on the incorrect form of the headers in
261 previous versions which defined too many symbols and included too many
262 other headers.
264 * regex now handles multibyte character sets correctly.
265 Contributed by Isamu Hasegawa <isamu@yamato.ibm.com>.
267 * iconv (the program) does now conform to the upcoming XPG6 and handles
268 charmaps. Instead of the charset names the path of charmaps can be
269 provided and the conversion happens based on this data.
270 Contributed by Ulrich Drepper.
272 * The locale program now provides detailed information about the installed
273 locales. While
275 locale -a
277 only lists the names of the supported locales
279 locale -a --verbose
281 provides details such as country, language, and codeset name.
282 Contributed by Ulrich Drepper.
283 \f
284 Version 2.2.1
286 * The gencat program now parses the input file according to the charset
287 selected by the LC_CTYPE category. This is important for stateful
288 character sets. To make generating catalogs easier there is a way
289 to overwrite the charset selected by the locale: before the first
290 message or $ quote line the catalog can contain a line like
292 $ codeset=ISO-8859-2
294 to select the charset (ISO-8859-2 in this case).
296 Implemented by Shinya Hanataka and Ulrich Drepper.
298 * New codeset conversion modules: IBM-922 (Estonia PC codeset),
299 IBM-1124 (Ukraine PC codeset), IBM-1129 (Vietnamese PC codeset).
300 Contributed by Masahide Washizawa <washi@jp.ibm.com>.
302 * Optimized string functions for Alpha ev6 and ev67 by Richard Henderson
303 <rth@redhat.com> and Rick Gorton <rick.gorton@alpha-processor.com>.
305 * The LANGUAGE environment variable is now ignored unless the locale is
306 changed from the default "C" locale.
308 * The usual bug fixes.
309 \f
310 Version 2.2
312 * Greg McGary added runtime support for bounds checking using gcc's
313 new -fbounded-pointers option. ix86 target is complete. PowerPC
314 is in progress.
316 * Thorsten Kukuk added secure mode support to nscd.
318 * The Berkeley db libraries have been removed.
320 Related, the nss_db module is now in a separate package since it
321 obviously requires a database library being available.
323 * Wide character I/O streams implemented by Ulrich Drepper.
325 * Functions from the extended socket API added by Ulrich Drepper.
327 * Functions feenableexcept and fedisableexcept to control the
328 behaviour of individual exceptions have been added by Andreas Jaeger.
330 * ldconfig program added by Andreas Jaeger and Jakub Jelinek.
332 * The resolver code has been updated from bind 8.2.3-T5B which supports
333 threads. The integration was done by Andreas Jaeger, Adam D. Bradley,
334 and Mark Kettenis.
336 This change could in some situations effect backward compatibility. Since
337 now `_res' is a thread-local instead of a global variable, modifying it
338 in one thread does not have any effect in other threads.
340 The resolver library was also extended to allow IPv6 as the transport
341 protocol for the requests. This work was done by Stig Venaas.
343 * Compatibility code for K&R C compilers has been removed from the
344 header files. A ISO C compiler is needed to use the library
345 (conforming to either C89 or C99 standard).
347 * Complete rewrite of the localedef program to support multibyte character
348 sets. Implement handling of ISO 14651 and ISO 14652. Rewrite strcoll,
349 strxfrm, wcscoll, and wcsxfrm functions. Make isw*() functions work.
350 Implemented by Ulrich Drepper.
352 Bruno Haible significantly improved the generation and use of the data
353 structures for the wide character tables.
355 * Plural handling in gettext implemented by Ulrich Drepper.
357 * The utmp daemon has been removed.
359 * The port to MIPS-Linux has been finished by Andreas Jaeger.
361 * A port to Hitachi SH3 and SH4 has been contributed by Kazumoto Kojima
362 and Yutaka Niibe.
364 * POSIX clocks and timers implemented by Kaz Kylheku and Ulrich Drepper.
366 * POSIX barriers implemented by Kaz Kylheku.
368 * POSIX spawn function family implemented by Ulrich Drepper.
370 * POSIX spinlocks are now available.
372 * Timed wait functions for mutex, rwlock, and semaphores are implemented.
374 * the configure option --enable-kernel=X.Y.Z allows to strip out
375 compatibility for kernel versions before X.Y.Z. This is currently only
376 implemented for Linux.
378 * the sockaddr_in6 structure changed. The IPv6 working group added a new
379 field sin6_scope_id. This means that all programs using IPv6 should be
380 recompiled. Don't expect binary compatibility with previous glibc
381 versions.
383 * various conversion modules for IBM character sets contributed by
384 Masahide Washizawa.
386 * IA-64 port by Jes Sorensen and HJ Lu.
388 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
389 Compiling the GNU C Library for Linux/ia64
390 ******************************************
392 Please refer to the file INSTALL in the same directory as you found
393 this file for general information about configuring and compiling
394 glibc.
396 For general inquiries about glibc under Linux/ia64 please use the
397 following mailing list linux-ia64@linuxia64.org or one of the relevant
398 glibc mailing lists.
400 Recommended Tools for Compilation
401 =================================
403 In order for glibc-2.2 to build correctly on the ia64 you need at
404 least the following versions of the GNU tools (the :
406 * The Cygnus toolchain snapshot for the ia64 as of August 4
407 including the provided set of patches. It is however recommend
408 you use the October 24 toolchain snapshot or a more recent version.
410 OR alternatively you can try the following (the Cygnus toolchain is
411 the recommended solution):
413 * GCC and binutils, GAS and GNU LD out of CVS from
414 sources.redhat.com as of August 28, 2000 or later. The CVS tree
415 may require special patches to work properly on the ia64.
417 Configuring and compiling GNU Libc for Linux/ia64
418 =================================================
420 The library requires Linux kernel version 2.4.0-test4-000728 or
421 later to funtion properly. Besides that it support for debug libraries
422 is currently untested. Hence the following options
423 are required for configuring the library:
425 --disable-debug --enable-kernel=2.4.0
427 It is also important that you make sure the library picks up the
428 appropriate kernel header files, if you do not have recent enough
429 kernel headers in /usr/src/linux/include, you should use the
430 --with-headers=<path> option to specify the location.
432 As an example I personally use the following options to configure
433 the library:
435 --disable-debug
436 --disable-cvs
437 --enable-kernel=2.4.0
438 --host=ia64-linux
439 --enable-add-ons=yes
440 --prefix=/usr
441 --with-headers=/home/jes/linux/include
444 Good luck
446 Jes Sorensen <jes@linuxcare.com>,
447 November 14th, 2000
448 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
449 \f
450 Version 2.1.3
452 * bug fixes
454 \f
455 Version 2.1.2
457 * bug fixes
459 \f
460 Version 2.1.1
462 * New ISO C 9x function _Exit, imaxabs, and imaxdiv are added.
464 * New xdr functions are added; some rpc functions are now 64bit clean.
466 * Fixed a number of bugs and memory leaks (especially in NIS+ code).
468 * Fixed known incompatibilities with glibc 2.0.
470 * New functions lock64, strchrnul, rawmemchr, getutmp and getutmpx.
472 * Optimized a number of functions (especially the ELF dynamic loader).
474 * Update timezone data files.
476 * lots of charmaps corrections
478 * some new locale definitions and charmaps
480 \f
481 Version 2.1
483 * Richard Henderson corrected size of struct timeval on Linux/Alpha to
484 conform to POSIX member type requirements. Symbol versions have been
485 adjusted as needed within the library, and for direct use by applications,
486 but there is potential for problems if third-party libraries use
487 struct timeval as part of their interface. This does not present
488 a problem for X and other "essential" system libraries.
490 * An additional locale model to support C++ Standard Library locale
491 model and probably more was implemented by Ulrich Drepper.
493 * Eric Youngdale and Ulrich Drepper implemented versioning of objects on
494 symbol level.
496 * Miles Bader provided the `argp' function family to support hierachical
497 command line argument parsing, layered on top of getopt.
499 * strtod accepts new hexadecimal floating-point format from ISO C 9X.
501 * printf has two new specifiers %a and %A to print hexadecimal flaoting-point
502 numbers.
504 * scanf recognizes the %a and %A format for scanning floating point numbers.
506 * the new headers <stdint.h> and <inttypes.h> from ISO C 9X provides
507 information and interfaces for the available integer types.
509 * about 130 new math functions were added to implement the ISO C9x math
510 library.
512 * the new header <complex.h> contains definitions of the complex math
513 functions from ISO C 9X.
515 * the new header <tgmath.h> defines generic macros to use complex or
516 real valued functions.
518 * Thorsten Kukuk provided an implementation for NIS+, securelevel 0, 1 and 2.
520 * Andreas Jaeger provided a test suite for the math library.
522 * Mark Kettenis implemented the utmpx interface and an utmp daemon.
524 * Ulrich Drepper added character set conversion functions (iconv).
526 * Optimized string functions have been added.
528 * The localedata addon is now part of glibc.
530 * An implementation of profiling shared libraries was added by Ulrich Drepper.
532 * Thorsten Kukuk and Ulrich Drepper provided an implementation for a caching
533 daemon for NSS (nscd).
535 Missing a better place here are some numbers on improvements. Under
536 Linux 2.1.125 un-tar-ing the kernel sources takes
538 user system wall
540 using local files 12.19s 6.88s 22.91s
542 using NIS 13.92s 8.91s 26.34s
544 using NIS & nscd 10.37s 7.34s 25.30s
546 using NIS+ 27.57s 30.37s 640.46s
548 using NIS+ & nscd 10.25s 7.83s 26.51s
550 using NIS & old nscd [1] 13.83s 8.32s 29.60s
552 Keep in mind that non-namelookup related operations dominate above times.
553 It was just a common complain that using NIS+ unpacking the kernel is
554 horribly slow.
556 [1] The old nscd implementation is not available anymore since it was
557 distributed with glibc up to version 2.0.98 and thus is now replaced.
559 * Tim Waugh provided an implementation of the POSIX.2 wordexp function family.
561 * Mark Kettenis provided a Hesiod NSS module.
563 * The ELF dynamic loader knows how to process dynamic string tokens ($ORIGIN
564 and $PLATFORM) in RPATHs and similar strings (Ulrich Drepper).
566 * rcmd can now handle netgroups (Dick Streefland).
568 * A port to the ARM was contributed by Phil Blundell, Pat Beirne and Scott
569 Bambrough.
571 * Support for the IPv6 protocol has been added to the socket API, as per the
572 latest draft standards.
574 * Support for Linux 2.2 has been added.
576 * Interface changes relative to the latest 2.0.x release:
577 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
578 addseverity NEW: Unix98
579 alphasort64 NEW: LFS
580 argp_err_exit_status NEW: argp, GNU ext
581 argp_error NEW: argp, GNU ext
582 argp_failure NEW: argp, GNU ext
583 argp_help NEW: argp, GNU ext
584 argp_parse NEW: argp, GNU ext
585 argp_program_bug_address NEW: argp, GNU ext
586 argp_program_version NEW: argp, GNU ext
587 argp_program_version_hook NEW: argp, GNU ext
588 argp_state_help NEW: argp, GNU ext
589 argp_usage NEW: argp, GNU ext
590 authdes_create NEW: Secure RPC
591 authdes_getucred NEW: Secure RPC
592 authdes_pk_create NEW: Secure RPC
593 backtrace NEW: GNU ext.
594 backtrace_symbols NEW: GNU ext.
595 backtrace_symbols_fd NEW: GNU ext.
596 cacos NEW: ISO C 9x
597 cacosf NEW: ISO C 9x
598 cacosh NEW: ISO C 9x
599 cacoshf NEW: ISO C 9x
600 cacoshl NEW: ISO C 9x
601 cacosl NEW: ISO C 9x
602 capget NEW: kernel
603 capset NEW: kernel
604 carg NEW: ISO C 9x
605 cargf NEW: ISO C 9x
606 cargl NEW: ISO C 9x
607 casin NEW: ISO C 9x
608 casinf NEW: ISO C 9x
609 casinh NEW: ISO C 9x
610 casinhf NEW: ISO C 9x
611 casinhl NEW: ISO C 9x
612 casinl NEW: ISO C 9x
613 catan NEW: ISO C 9x
614 catanf NEW: ISO C 9x
615 catanh NEW: ISO C 9x
616 catanhf NEW: ISO C 9x
617 catanhl NEW: ISO C 9x
618 catanl NEW: ISO C 9x
619 cbc_crypt NEW: Secure RPC
620 ccos NEW: ISO C 9x
621 ccosf NEW: ISO C 9x
622 ccosh NEW: ISO C 9x
623 ccoshf NEW: ISO C 9x
624 ccoshl NEW: ISO C 9x
625 ccosl NEW: ISO C 9x
626 cexp NEW: ISO C 9x
627 cexpf NEW: ISO C 9x
628 cexpl NEW: ISO C 9x
629 cimag NEW: ISO C 9x
630 cimagf NEW: ISO C 9x
631 cimagl NEW: ISO C 9x
632 clearerr_locked REMOVED
633 clntunix_create NEW: sunrpc ext
634 clog NEW: ISO C 9x
635 clog10 NEW: ISO C 9x
636 clog10f NEW: ISO C 9x
637 clog10l NEW: ISO C 9x
638 clogf NEW: ISO C 9x
639 clogl NEW: ISO C 9x
640 conj NEW: ISO C 9x
641 conjf NEW: ISO C 9x
642 conjl NEW: ISO C 9x
643 cpow NEW: ISO C 9x
644 cpowf NEW: ISO C 9x
645 cpowl NEW: ISO C 9x
646 cproj NEW: ISO C 9x
647 cprojf NEW: ISO C 9x
648 cprojl NEW: ISO C 9x
649 creal NEW: ISO C 9x
650 crealf NEW: ISO C 9x
651 creall NEW: ISO C 9x
652 creat64 NEW: LFS
653 csin NEW: ISO C 9x
654 csinf NEW: ISO C 9x
655 csinh NEW: ISO C 9x
656 csinhf NEW: ISO C 9x
657 csinhl NEW: ISO C 9x
658 csinl NEW: ISO C 9x
659 csqrt NEW: ISO C 9x
660 csqrtf NEW: ISO C 9x
661 csqrtl NEW: ISO C 9x
662 ctan NEW: ISO C 9x
663 ctanf NEW: ISO C 9x
664 ctanh NEW: ISO C 9x
665 ctanhf NEW: ISO C 9x
666 ctanhl NEW: ISO C 9x
667 ctanl NEW: ISO C 9x
668 des_setparity NEW: Secure RPC
669 ecb_crypt NEW: Secure RPC
670 endutxent NEW: Unix98
671 exp10 NEW: ISO C 9x
672 exp10f NEW: ISO C 9x
673 exp10l NEW: ISO C 9x
674 exp2 NEW: ISO C 9x
675 exp2f NEW: ISO C 9x
676 exp2l NEW: ISO C 9x
677 fattach NEW: STREAMS
678 fdetach NEW: STREAMS
679 fdim NEW: ISO C 9x
680 fdimf NEW: ISO C 9x
681 fdiml NEW: ISO C 9x
682 feclearexcept NEW: ISO C 9x
683 fegetenv NEW: ISO C 9x
684 fegetexceptflag NEW: ISO C 9x
685 fegetround NEW: ISO C 9x
686 feholdexcept NEW: ISO C 9x
687 feof_locked REMOVED
688 feraiseexcept NEW: ISO C 9x
689 ferror_locked REMOVED
690 fesetenv NEW: ISO C 9x
691 fesetexceptflag NEW: ISO C 9x
692 fesetround NEW: ISO C 9x
693 fetestexcept NEW: ISO C 9x
694 feupdateenv NEW: ISO C 9x
695 fflush_locked REMOVED
696 ffsl NEW: GNU ext.
697 ffsll NEW: GNU ext.
698 fgetpos64 NEW: LFS
699 fgets_unlocked NEW: GNU ext.
700 fileno_locked REMOVED
701 fma NEW: ISO C 9x
702 fmaf NEW: ISO C 9x
703 fmal NEW: ISO C 9x
704 fmax NEW: ISO C 9x
705 fmaxf NEW: ISO C 9x
706 fmaxl NEW: ISO C 9x
707 fmin NEW: ISO C 9x
708 fminf NEW: ISO C 9x
709 fminl NEW: ISO C 9x
710 fmtmsg NEW: Unix98
711 fopen64 NEW: LFS
712 fputc_locked REMOVED
713 fputs_unlocked NEW: GNU ext.
714 fread_unlocked NEW: GNU ext.
715 freopen64 NEW: LFS
716 fseeko NEW: Unix98
717 fsetpos64 NEW: LFS
718 fstatfs64 NEW: LFS
719 fstatvfs NEW: Unix98
720 fstatvfs64 NEW: LFS
721 ftello NEW: Unix98
722 ftello64 NEW: LFS
723 ftruncate64 NEW: LFS
724 ftw64 NEW: LFS
725 fwrite_unlocked NEW: GNU ext.
726 gai_strerror NEW: IPv6
727 gamma_r REMOVED
728 gammaf_r REMOVED
729 gammal_r REMOVED
730 getchar_locked REMOVED
731 getdate NEW: Unix98
732 getdate_err NEW: Unix98
733 getdate_r NEW: GNU ext.
734 getmsg NEW: STREAMS
735 getnameinfo NEW: IPv6
736 getnetname NEW: Secure RPC
737 getpmsg NEW: STREAMS
738 getpt NEW: Unix98 PTY
739 getrlimit64 NEW: LFS
740 getutxent NEW: Unix98
741 getutxid NEW: Unix98
742 getutxline NEW: Unix98
743 glob64 NEW: GNU ext.
744 globfree64 NEW: GNU ext.
745 gnu_get_libc_release NEW: GNU ext.
746 gnu_get_libc_version NEW: GNU ext.
747 grantpt NEW: Unix98 PTY
748 host2netname NEW: Secure RPC
749 iconv NEW: iconv
750 iconv_close NEW: iconv
751 iconv_open NEW: iconv
752 if_freenameindex NEW: IPv6
753 if_indextoname NEW: IPv6
754 if_nameindex NEW: IPv6
755 if_nametoindex NEW: IPv6
756 in6addr_any NEW: IPv6
757 in6addr_loopback NEW: IPv6
758 inet6_isipv4mapped NEW: IPv6
759 isastream NEW: STREAMS
760 iswblank NEW: GNU ext.
761 key_decryptsession NEW: Secure RPC
762 key_decryptsession_pk NEW: Secure RPC
763 key_encryptsession NEW: Secure RPC
764 key_encryptsession_pk NEW: Secure RPC
765 key_gendes NEW: Secure RPC
766 key_get_conv NEW: Secure RPC
767 key_secretkey_is_set NEW: Secure RPC
768 key_setnet NEW: Secure RPC
769 key_setsecret NEW: Secure RPC
770 llrint NEW: ISO C 9x
771 llrintf NEW: ISO C 9x
772 llrintl NEW: ISO C 9x
773 llround NEW: ISO C 9x
774 llroundf NEW: ISO C 9x
775 llroundl NEW: ISO C 9x
776 log2 NEW: ISO C 9x
777 log2f NEW: ISO C 9x
778 log2l NEW: ISO C 9x
779 lrint NEW: ISO C 9x
780 lrintf NEW: ISO C 9x
781 lrintl NEW: ISO C 9x
782 lround NEW: ISO C 9x
783 lroundf NEW: ISO C 9x
784 lroundl NEW: ISO C 9x
785 lseek64 NEW: LFS
786 makecontext NEW: Unix98
787 mempcpy NEW: GNU ext.
788 mmap64 NEW: LFS
789 moncontrol REMOVED
790 modify_ldt NEW: kernel
791 nan NEW: ISO C 9x
792 nanf NEW: ISO C 9x
793 nanl NEW: ISO C 9x
794 nearbyint NEW: ISO C 9x
795 nearbyintf NEW: ISO C 9x
796 nearbyintl NEW: ISO C 9x
797 netname2host NEW: Secure RPC
798 netname2user NEW: Secure RPC
799 nexttoward NEW: ISO C 9x
800 nexttowardf NEW: ISO C 9x
801 nexttowardl NEW: ISO C 9x
802 nftw NEW: Unix98
803 nftw64 NEW: LFS
804 open64 NEW: LFS
805 passwd2des NEW: Secure RPC
806 pow10 NEW: GNU ext.
807 pow10f NEW: GNU ext.
808 pow10l NEW: GNU ext.
809 pread NEW: Unix98
810 pread64 NEW: LFS
811 printf_size NEW: GNU ext.
812 printf_size_info NEW: GNU ext.
813 profil_counter REMOVED
814 pthread_mutexattr_getkind_np REPLACED
815 pthread_mutexattr_setkind_np REPLACED
816 ptsname NEW: Unix98 PTY
817 ptsname_r NEW: Unix98 PTY
818 putc_locked REMOVED
819 putchar_locked REMOVED
820 putgrent NEW: GNU ext.
821 putmsg NEW: STREAMS
822 putpmsg NEW: STREAMS
823 pututxline NEW: Unix98
824 pwrite NEW: Unix98
825 pwrite64 NEW: LFS
826 readdir64 NEW: LFS
827 readdir64_r NEW: LFS
828 remquo NEW: ISO C 9x
829 remquof NEW: ISO C 9x
830 remquol NEW: ISO C 9x
831 round NEW: ISO C 9x
832 roundf NEW: ISO C 9x
833 roundl NEW: ISO C 9x
834 rtime NEW: GNU ext.
835 scalbln NEW: ISO C 9x
836 scalblnf NEW: ISO C 9x
837 scalblnl NEW: ISO C 9x
838 scandir64 NEW: LFS
839 sendfile NEW: kernel
840 setcontext NEW: Unix98
841 setrlimit64 NEW: LFS
842 setutxent NEW: Unix98
843 sighold NEW: Unix98
844 sigignore NEW: Unix98
845 sigqueue NEW: POSIX.1b
846 sigrelse NEW: Unix98
847 sigset NEW: POSIX.1b
848 sigtimedwait NEW: POSIX.1b
849 sigwaitinfo NEW: POSIX.1b
850 sincos NEW: GNU ext.
851 sincosf NEW: GNU ext.
852 sincosl NEW: GNU ext.
853 statfs64 NEW: LFS
854 statvfs NEW: Unix98
855 statvfs64 NEW: LFS
856 strcasestr NEW: GNU ext.
857 strtoimax NEW: ISO C 9x
858 strtoumax NEW: ISO C 9x
859 strverscmp NEW: GNU ext.
860 svcauthdes_stats NEW: Secure RPC
861 svcunix_create NEW: sunrpc etx
862 svcunixfd_create NEW: sunrpc ext
863 swapcontext NEW: Unix98
864 tcgetsid NEW: Unix98 PTY
865 tdestroy NEW: GNU ext.
866 tgamma NEW: ISO C 9x
867 tgammaf NEW: ISO C 9x
868 tgammal NEW: ISO C 9x
869 tmpfile64 NEW: LFS
870 trunc NEW: ISO C 9x
871 truncate64 NEW: LFS
872 truncf NEW: ISO C 9x
873 truncl NEW: ISO C 9x
874 umount2 NEW: kernel
875 unlockpt NEW: Unix98 PTY
876 updwtmpx NEW: Unix98
877 user2netname NEW: Secure RPC
878 utmpxname NEW: Unix98
879 versionsort NEW: GNU ext.
880 versionsort64 NEW: GNU ext.
881 waitid NEW: Unix98
882 wcscasecmp NEW: GNU ext.
883 wcsncasecmp NEW: GNU ext.
884 wcsnlen NEW: GNU ext.
885 wcstoimax NEW: ISO C 9x
886 wcstoll NEW: ISO C 9x
887 wcstoull NEW: ISO C 9x
888 wcstoumax NEW: ISO C 9x
889 wcswcs NEW: Unix98
890 wordexp NEW: POSIX.2
891 wordfree NEW: POSIX.2
892 write_profiling REMOVED
893 xdecrypt NEW: Secure RPC
894 xdr_authdes_cred NEW: Secure RPC
895 xdr_authdes_verf NEW: Secure RPC
896 xdr_cryptkeyarg NEW: Secure RPC
897 xdr_cryptkeyarg2 NEW: Secure RPC
898 xdr_cryptkeyres NEW: Secure RPC
899 xdr_getcredres NEW: Secure RPC
900 xdr_key_netstarg NEW: Secure RPC
901 xdr_key_netstres NEW: Secure RPC
902 xdr_keybuf NEW: Secure RPC
903 xdr_keystatus NEW: Secure RPC
904 xdr_netnamestr NEW: Secure RPC
905 xdr_sizeof NEW: Secure RPC
906 xdr_unixcred NEW: sunrpc ext
907 xencrypt NEW: Secure RPC
908 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
909 \f
910 Version 2.0.6
912 * more bug fixes
914 \f
915 Version 2.0.5
917 * more bug fixes
919 * inet_ntoa is thread-safe
921 * updwtmp is moved from libutil to libc
923 * rewrite of cbrt function
925 * update of timezone data
926 \f
927 Version 2.0.4
929 * more bug fixes
930 \f
931 Version 2.0.3
933 * more bug fixes
934 \f
935 Version 2.0.2
937 * more bug fixes
939 * add atoll function
941 * fix complex problems in Berkeley DB code
943 * fix math functions
944 \f
945 Version 2.0.1
947 * fixed lots of header problems (especially Linux/GNU specific)
949 * dynamic loader preserves all registers
951 * Roland McGrath provided support for handling of auxiliary objects in
952 the ELF dynamic loader.
954 * support for parallel builds is improved
955 \f
956 Version 2.0
958 * GNU extensions are no longer declared by default. To enable them you
959 must define the macro `_GNU_SOURCE' in your program or compile with
960 `-D_GNU_SOURCE'.
962 * The library has changed from using GNU ld symbol aliases to using weak
963 symbols where available. The ELF object file format supports weak
964 symbols; GNU ld also supports weak symbols in the a.out format. (There
965 is also now support for other GNU ld extensions in ELF. Use the
966 `--with-elf' option to configure to indicate you have ELF, and
967 `--with-gnu-ld' if using GNU ld.) This change resulted in the deletion
968 of many files which contained only symbol aliases, reducing the size of
969 the source and the compiled library; many other files were renamed to
970 less cryptic names previously occupied by the symbol alias files.
971 There is a new header file <elf.h> for programs which operate on
972 files in the ELF format.
974 * Converted to Autoconf version 2, so `configure' has more options.
975 Run `configure --help' to see the details.
977 * The library can now be configured to build profiling, highly-optimized
978 (but undebuggable), and/or shared libraries (ELF with GNU ld only). The
979 `--enable-profile', `--enable-omitfp', and `--enable-shared' options to
980 `configure' enable building these extra libraries. The shared library is
981 built by default when using both ELF and GNU ld. When shared libraries
982 are enabled, the new library `-ldl' is available for arbitrary run-time
983 loading of shared objects; its interface is defined in <dlfcn.h>. The
984 new header file <link.h> gives access to the internals of the run-time
985 dynamic linker, `ld.so'. The shell script `ldd' is similar to the
986 application of same name on other systems and it provides information
987 about dynamically linked binaries.
989 * The C library now provides the run-time support code for profiling
990 executables compiled with `-pg'. Programs can control the profiling code
991 through the interface in <sys/gmon.h>. The `gmon.out' files written by
992 the GNU C library can be read only by GNU `gprof' (from GNU binutils);
993 the support for this file format was contributed by David Mosberger-Tang.
995 * The math code has been replaced with a math library based on fdlibm from
996 Sun, and modified by JT Conklin and Ulrich Drepper with i387 support, by
997 Ian Taylor with `float' functions and by Ulrich Drepper with `long double'
998 functions. The math functions now reside in a separate library, so
999 programs using them will need to use `-lm' their linking commands.
1001 * John C. Bowman contributed optimized ix87 assembler inline functions.
1003 * Ulrich Drepper has contributed support for an `/etc/nsswitch.conf'
1004 mechanism similar to that found in Solaris 2. This is now used for the
1005 group, passwd, hosts, networks, services, protocols, rpc, ethers,
1006 shadow, netgroup, publickey, and alias databases. The `nsswitch.conf'
1007 file controls what services are used for each individual database. This
1008 works by loading shared libraries with names specified in `nsswitch.conf',
1009 so service modules can be changed or added at any time without even
1010 relinking any program. Currently there are the file, db, and NIS based
1011 NSS services available.
1013 * The new functions `strtoq' and `strtouq' parse integer values from
1014 strings, like `strtol' and `strtoul', but they return `long long int' and
1015 `unsigned long long int' values, respectively (64-bit quantities).
1017 * The new functions `strtof' and `strtold' parse floating-point values from
1018 strings, like `strtod', but they return `float' and `long double' values,
1019 respectively (on some machines `double' and `long double' are the same).
1021 * Ulrich Drepper has contributed new implementations of the floating-point
1022 printing and reading code used in the `printf' family of functions and
1023 `strtod', `strtof', and `strtold'. These new functions are perfectly
1024 accurate, and much faster than the old ones.
1026 * The implementation of the POSIX locale model was completely rewritten by
1027 Ulrich Drepper. This includes the new programs `localedef' and `locale'
1028 to compile the POSIX locale definition.
1030 * The former dummy implementations of the strcoll and strxfrm function are
1031 now replaced by fully functional code contributed by Ulrich Drepper. The
1032 collation information comes from the POSIX locale definitions.
1034 * The new header <langinfo.h> defines an interface for accessing
1035 various locale-dependent data (using the locale chosen with `setlocale').
1037 * Ulrich Drepper has contributed a new suite of functions for operation on
1038 wide-character and multibyte-character strings, in <wchar.h>;
1039 and classification and case conversion of wide characters, in <wctype.h>.
1040 These new functions are conforming to the ISO C, Amendement 1 specification.
1042 * There is now a second implementation of the standard I/O library available.
1043 It comes from GNU libg++ as was written by Per Bothner, heavily modified
1044 by Hongjiu Lu and made thread safe by Ulrich Drepper.
1046 * You can now use positional parameter specifications in format strings
1047 for the `printf' and `scanf' families of functions. For example,
1048 `printf ("Number %2$d, Mr %1$s\n", "Jones", 6);'' prints
1049 ``Number 6, Mr Jones''. This is mainly useful when providing different
1050 format strings for different languages, whose grammars may dictate
1051 different orderings of the values being printed. To support this
1052 feature, the interface for `register_printf_handler' has changed; see
1053 the header file <printf.h> for details.
1055 * The `printf' and `scanf' families of functions now understand a new
1056 formatting flag for numeric conversions: the ' flag (e.g. %'d or %'f) says
1057 to group numbers as indicated by the locale; for `scanf' and friends, this
1058 says to accept as valid only a number with all the proper grouping
1059 separators in the right places. In the default "C" locale, numbers are
1060 not grouped; but locales for specific countries will define the usual
1061 conventions (i.e. separate thousands with `,' in the US locale).
1063 * The pgrp functions have been regularized, slightly incompatibly but much
1064 less confusingly. The core functions are now `getpgid' and `setpgid',
1065 which take arguments for the PID to operate on; the POSIX.1 `getpgrp' (no
1066 argument) and BSD `setpgrp' (identical to `setpgid') functions are
1067 provided for compatibility. There is no longer an incompatible `getpgrp'
1068 with an argument declared under _BSD_SOURCE; no BSD code uses it.
1070 * The new header file <fts.h> and suite of functions simplify programs that
1071 operate on directory trees. This code comes from 4.4 BSD.
1073 * The resolver code has been updated from the BIND 4.9.5-P1 release.
1074 Parts of the code were heavily modified by Ulrich Drepper to fit in the
1075 NSS scheme used in glibc.
1077 * There is a new malloc debugging hook `__memalign_hook'.
1079 * There are new typedefs `ushort' for `unsigned short int' and `uint' for
1080 `unsigned int' in <sys/types.h>. These are for compatibility only and
1081 their use is discouraged.
1083 * The `-lmcheck' library to enable standard malloc debugging hooks is now
1084 done differently, so that it works even without GNU ld.
1086 * New function `euidaccess' checks allowed access to a file like `access',
1087 but using the effective IDs instead of the real IDs.
1089 * The time zone data files have been updated for the latest and greatest
1090 local time conventions of the countries of the world.
1092 * The new function `dirfd' extracts the file descriptor used by a DIR stream;
1093 see <dirent.h>.
1095 * The new functions `ecvt', `fcvt', and `gcvt' provide an obsolete interface
1096 for formatting floating-point numbers. They are provided only for
1097 compatibility; new programs should use `sprintf' instead. There are
1098 also equivalent function for the `long double' floating-point type and
1099 all functions also exist in a reentrant form.
1101 * The new auxiliary library `-lutil' from 4.4 BSD contains various
1102 functions for maintaining the login-record files (primarily of use to
1103 system programs such as `login'), and convenient functions for
1104 allocating and initializing a pseudo-terminal (pty) device.
1106 * Ulrich Drepper has contributed new support for System V style
1107 shared memory and IPC on systems that support it.
1109 * Ulrich Drepper has contributed several miscellaneous new functions found
1110 in System V: The `hsearch' family of functions provide an effective
1111 implementation of hash tables; `a64l' and `l64a' provide a very simple
1112 binary to ASCII mapping; `drand48' and friends provide a 48-bit random
1113 number generator.
1115 * Ulrich Drepper has contributed new reentrant counterparts for the
1116 `random' and `hsearch' families of functions; `random_r', `hsearch_r', etc.
1118 * Ulrich Drepper has contributed new, highly-optimized versions of several
1119 string functions for the i486/Pentium family of processors.
1121 * Ulrich Drepper has updated the Linux-specific code, based largely
1122 on work done in Hongjiu Lu's version of GNU libc for Linux.
1123 The GNU library now supports Linux versions 2.0.10 and later,
1124 using the ELF object file format (i[3456]86-*-linux).
1126 * Andreas Schwab has ported the C library to Linux/m68k (m68k-*-linux).
1128 * David Mosberger-Tang and Richard Henderson have ported the C library
1129 to Linux/Alpha (alpha-*-linux). Richard Henderson contributed the
1130 dynamic linking support for ELF/Alpha.
1132 * Richard Henderson contributed several Alpha optimized assembler function
1133 for arithmetic and string handling.
1135 * Ulrich Drepper has contributed a new set of message catalog functions to
1136 support multiple languages using the <libintl.h> interface, for use with
1137 his new package GNU gettext. Translation volunteers have contributed
1138 catalogs of the library's messages in Spanish, German, and Korean.
1140 * For compatibility with XPG4, Ulrich Drepper has contributed the `gencat'
1141 program and the `catgets' function for reading the catalog files it
1142 creates. (The <libintl.h> interface is preferred; we include the
1143 <nl_types.h> interface using `catgets' only for source compatibility with
1144 programs already written to use it.)
1146 * New header file <values.h> gives SVID-compatible names for <limits.h>
1147 constants.
1149 * Various new macros, declarations, and small header files for compatibility
1150 with 4.4 BSD.
1152 * New function `group_member' is a convenient way to check if a process has
1153 a given effective group ID.
1155 * When using GCC 2.7 and later, the socket functions are now declared in a
1156 special way so that passing an argument of type `struct sockaddr_in *',
1157 `struct sockaddr_ns *', or `struct sockaddr_un *' instead of the generic
1158 `struct sockaddr *' type, does not generate a type-clash warning.
1160 * New function `error' declared in header file <error.h> is a convenient
1161 function for printing error messages and optionally exiting; this is the
1162 canonical function used in GNU programs. The new functions `err', `warn',
1163 and friends in header file <err.h> are the canonical 4.4 BSD interface for
1164 doing the same thing.
1166 * The <glob.h> interface has several new flags from 4.4 BSD that extend the
1167 POSIX.2 `glob' function to do ~ and {...} expansion.
1169 * New function `unsetenv' complements `setenv' for compatibility with 4.4 BSD.
1170 `clearenv' which is used in POSIX.9 is also available.
1172 * New function `getsid' returns session ID number on systems that support it.
1174 * We have incorporated the 4.4 BSD `db' library (version 1.85). New header
1175 files <db.h> and <mpool.h> provide a rich set of functions for several
1176 types of simple databases stored in memory and in files, and <ndbm.h> is
1177 an old `ndbm'-compatible interface using the `db' functions. Link with
1178 `-ldb' to get these functions.
1180 * New macro `strdupa' copies a string like `strdup', but uses local stack
1181 space from `alloca' instead of dynamic heap space from `malloc'.
1183 * New function `strnlen' is like `strlen' but searches only a given maximum
1184 number of characters for the null terminator. `stpncpy', `strndup' and
1185 `strndupa' are similar variants for the `stpcpy', `strdup' and `strdupa'
1186 function.
1188 * New function `statfs' in header <sys/statfs.h>.
1190 * The new <argz.h> and <envz.h> interfaces contributed by Miles Bader
1191 provide convenient functions for operating on blocks of null-terminated
1192 strings.
1194 * A new suite of functions in <utmp.h> handle all the details of reading
1195 and writing the utmp file.
1197 * An implementation of the NIS/YP(tm) based NSS service was contributed by
1198 Thorsten Kukuk.
1200 * Paul Eggert and Ulrich Drepper modified the `strftime' function to be
1201 completely POSIX compliant and also implemented the extended functionality
1202 to handle alternate digit representation and alternate era date formats.
1204 * Ulrich Drepper provided an implementation of the `strptime' function
1205 defined in XPG4.2 which transforms a string into a `struct tm' value.
1207 * Paul Eggert provided the tzselect shell script as part of the timezone
1208 code. The shell script makes it easy to select the correct timezone
1209 specification.
1211 * The implementation of the malloc family of functions is completely replaced
1212 by a new implementation by Doug Lea with many improvements by Wolfram Gloger.
1213 The implementation uses the mmap function (if available) and it is
1214 optimized for the use in multi threaded programs.
1216 * Ulrich Drepper contributed a MD5 "encryption" for the crypt family of
1217 functions. This new functionality is usable by specifying a special
1218 salt string and it is compatible with implementation on *BSD systems.
1220 * Lots of functions from the XPG4.2 standard were added by Ulrich Drepper:
1221 `getsubopt' to handle second level command line options, `bsd_signal'
1222 to access BSD style `signal' functionality, the obsolete `regexp' style
1223 expression matcher.
1225 * the `lchown' function is available on system which support this
1226 functionality.
1228 * The implementation of the shadow password handling function was contributed
1229 by Ulrich Drepper.
1231 * David Mosberger-Tang changed the SunRPC implementation to be 64bit safe.
1233 * POSIX.1g support was added. The <sys/select.h> header is available,
1234 `isfdtype' and `pselect' are implemented. Craig Metz contributed an
1235 implementation of `getaddrinfo'.
1236 \f
1237 Version 1.09
1239 * For cross-compilation you should now set `BUILD_CC' instead of `HOST_CC'.
1241 * New header file <fstab.h> and new functions `getfsspec', `getfsent' and
1242 friends, for parsing /etc/fstab. This code comes from 4.4 BSD.
1244 * The new function `daemon' from 4.4 BSD is useful for server programs that
1245 want to put themselves in the background.
1247 * Joel Sherrill has contributed support for several standalone boards that
1248 run without an operating system.
1250 * `printf', `scanf' and friends now accept a `q' type modifier for long
1251 long int as well as `ll'. Formats using these might be `%qu' or `%lld'.
1253 * All of the code taken from BSD (notably most of the math and networking
1254 routines) has been updated from the BSD 4.4-Lite release.
1256 * The resolver code has been updated from the BIND-4.9.3-BETA9 release.
1258 * The new functions `getdomainname' and `setdomainname' fetch or change the
1259 YP/NIS domain name. These are system calls which exist on systems which
1260 have YP (aka NIS).
1262 * The time zone data files have been updated for the latest international
1263 conventions.
1265 * The SunRPC programs `portmap' and `rpcinfo' are now installed in
1266 $(sbindir) (usually /usr/local/sbin) instead of $(bindir).
1267 \f
1268 Version 1.08
1270 * The C library now includes support for Sun RPC, from Sun's free
1271 RPCSRC-4.0 distribution. The `portmap', `rpcinfo', and `rpcgen' programs
1272 are included. (There is still no support for YP.)
1274 * Tom Quinn has contributed a port of the C library to SGI machines running
1275 Irix 4 (mips-sgi-irix4).
1277 * The new `lockf' function is a simplified interface to the locking
1278 facilities of `fcntl', included for compatibility.
1280 * New time functions `timegm', `timelocal', and `dysize' for compatibility.
1282 * New header file <sys/timeb.h> and new function `ftime' for compatibility.
1284 * New header files <poll.h> and <sys/poll.h> and new function `poll' for
1285 compatibility.
1287 * The error message printed by `assert' for a failed assertion now includes
1288 the name of the program (if using GNU ld) and the name of the calling
1289 function (with versions of GCC that support this).
1291 * The `psignal' function is now declared in <signal.h>, not <stdio.h>.
1293 * The library now includes the <sys/mman.h> header file and memory
1294 management functions `mmap', `munmap', `mprotect', `msync', and
1295 `madvise', on systems that support those facilities.
1297 * The interface for `mcheck' has changed slightly: the function called to
1298 abort the program when an allocation inconsistency is detected now takes
1299 an argument that indicates the type of failure. The new function
1300 `mprobe' lets you request a consistency check for a particular block at
1301 any time (checks are normally done only when you call `free' or `realloc'
1302 on a block).
1304 * It is now possible to easily cross-compile the C library, building on one
1305 system a library to run on another machine and/or operating system. All
1306 you need to do is set the variable `HOST_CC' in `configparms' to the
1307 native compiler for programs to run on the machine you are building on (a
1308 few generator programs are used on Unix systems); set `CC' to the
1309 cross-compiler.
1311 * The new function `fexecve' (only implemented on the GNU system) executes
1312 a program file given a file descriptor already open on the file.
1313 \f
1314 Version 1.07
1316 * Brendan Kehoe has contributed most of a port to the DEC Alpha
1317 running OSF/1 (alpha-dec-osf1). He says it is 75% complete.
1319 * You can set the variable `libprefix' in `configparms' to specify a prefix
1320 to be prepended to installed library files; this makes it easy to install
1321 the GNU C library to be linked as `-lgnuc' or whatever.
1323 * The new `stpncpy' is a cross between `stpcpy' and `strncpy': It
1324 copies a limited number of characters from a string, and returns the
1325 address of the last character written.
1327 * You no longer need to check for whether the installed `stddef.h' is
1328 compatible with the GNU C library. configure now checks for you.
1330 * You can now define a per-stream `fileno' function to convert the
1331 stream's cookie into an integral file descriptor.
1333 * ``malloc (0)'' no longer returns a null pointer. Instead, it
1334 allocates zero bytes of storage, and returns a unique pointer which
1335 you can pass to `realloc' or `free'. The behavior is undefined if
1336 you dereference this pointer.
1338 * The C library now runs on Sony NEWS m68k machines running either
1339 NewsOS 3 or NewsOS 4.
1341 * The new `syscall' function is a system-dependent primitive function
1342 for invoking system calls. It has the canonical behavior on Unix
1343 systems, including unreliable return values for some calls (such as
1344 `pipe', `fork' and `getppid').
1346 * The error code `EWOULDBLOCK' is now obsolete; it is always defined
1347 to `EAGAIN', which is the preferred name. On systems whose kernels
1348 use two distinct codes, the C library now translates EWOULDBLOCK to
1349 EAGAIN in every system call function.
1350 \f
1351 Version 1.06
1353 * The GNU C Library Reference Manual is now distributed with the library.
1354 `make dvi' will produce a DVI file of the printed manual.
1355 `make info' will produce Info files that you can read on line using C-h i
1356 in Emacs or the `info' program.
1357 Please send comments on the manual to bug-glibc-manual@gnu.org.
1359 * The library now supports SVR4 on i386s (i386-unknown-sysv4).
1361 * Brendan Kehoe has contributed a port to Sun SPARCs running Solaris 2.
1363 * Jason Merrill has contributed a port to the Sequent Symmetry running
1364 Dynix version 3 (i386-sequent-dynix).
1366 * The library has been ported to i386s running SCO 3.2.4 (also known as SCO
1367 ODT 2.0; i386-unknown-sco3.2.4) or SCO 3.2 (i386-unknown-sco3.2).
1369 * New function `memory_warnings' lets you arrange to get warnings when
1370 malloc is running out of memory to allocate, like Emacs gives you.
1372 * The C library now contains the relocating allocator used in Emacs 19 for
1373 its editing buffers. This allocator (ralloc) minimizes allocation
1374 overhead and fragmentation by moving allocated regions around whenever it
1375 needs to. You always refer to a ralloc'd region with a "handle" (a
1376 pointer to a pointer--an object of type `void **').
1378 * There is a new `printf' format: `%m' gives you the string corresponding
1379 to the error code in `errno'.
1381 * In `scanf' formats, you can now use `%as' or `%a[' to do the normal `%s'
1382 or `%[' conversion, but instead of filling in a fixed-sized buffer you
1383 pass, the `a' modifier says to fill in a `char **' you pass with a
1384 malloc'd string.
1386 * The `fnmatch' function supports the new flag bits `FNM_LEADING_DIR' and
1387 `FNM_CASEFOLD'. `FNM_LEADING_DIR' lets a pattern like `foo*' match a
1388 name like `foo/bar'. `FNM_CASEFOLD' says to ignore case in matching.
1390 * `mkstemp' is a traditional Unix function to atomically create and open a
1391 uniquely-named temporary file.
1392 \f
1393 Version 1.05
1395 * The standard location for the file that says what the local timezone is
1396 has changed again. It is now `/usr/local/etc/localtime' (or more
1397 precisely, `${prefix}/etc/localtime') rather than `/etc/localtime'.
1399 * The distribution no longer contains any files with names longer than 14
1400 characters.
1402 * `struct ttyent' has two new flag bits: TTY_TRUSTED and TTY_CONSOLE.
1403 These are set by the new `trusted' and `console' keywords in `/etc/ttys'.
1405 * New functions `ttyslot' and `syslog' from 4.4 BSD.
1406 \f
1407 Version 1.04
1409 * The configuration process has changed quite a bit. The `configure'
1410 script is now used just like the configuration scripts for other GNU
1411 packages. The `sysdeps' directory hierarchy is much rearranged.
1412 The file `INSTALL' explains the new scheme in detail.
1414 * The header files no longer need to be processed into ANSI C and
1415 traditional C versions. There is just one set of files to install, and
1416 it will work with ANSI or old C compilers (including `gcc -traditional').
1418 * Brendan Kehoe and Ian Lance Taylor have ported the library to the
1419 MIPS DECStation running Ultrix 4.
1421 * The Sun 4 startup code (crt0) can now properly load SunOS 4 shared libraries.
1422 Tom Quinn contributed the initial code. The GNU C library can NOT yet be
1423 made itself into a shared library.
1425 * Yet further improved support for the i386, running 4.3 BSD-like systems
1426 (such as Mach 3 with the Unix single-server), or System V.
1428 * New function `strncasecmp' to do case-insensitive string comparison
1429 with limited length.
1431 * New function `strsep' is a reentrant alternative to `strtok'.
1433 * New functions `scandir' and `alphasort' for searching directories.
1435 * New function `setenv' is a better interface to `putenv'.
1437 * Ian Lance Taylor has contributed an implementation of the SVID `ftw'
1438 function for traversing a directory tree.
1440 * The GNU obstack package is now also part of the C library.
1441 The new function `open_obstack_stream' creates a stdio stream that
1442 writes onto an obstack; `obstack_printf' and `obstack_vprintf' do
1443 formatted output directly to an obstack.
1445 * Miscellaneous new functions: reboot, nice, sigaltstack (4.4 BSD only),
1446 cfmakeraw, getusershell, getpass, swab, getttyent, seteuid, setegid.
1448 * `FNM_FILE_NAME' is another name for `FNM_PATHNAME', used with `fnmatch'.
1450 * The new functions `strfry' and `memfrob' do mysterious and wonderful
1451 things to your strings.
1453 * There are some new test programs: test-fseek, testmb, and testrand.
1455 * Some work has been done to begin porting the library to 4.4 BSD and Linux.
1456 These ports are not finished, but are a good starting place for really
1457 supporting those systems.
1459 * `/etc/localtime' is now the standard location for the file that says what
1460 the local timezone is, rather than `/usr/local/lib/zoneinfo/localtime'.
1461 This follows the general principle that `/etc' is the place for all local
1462 configuration files.
1464 * The C library header files now use `extern "C"' when used by the C++
1465 compiler, so the C library should now work with C++ code.
1467 * The header file <bstring.h> is gone. <string.h> now declares bcopy,
1468 bcmp, bzero, and ffs. (Update: nowadays these functions are declared
1469 in <strings.h>.)
1471 * Mike Haertel (of GNU e?grep and malloc fame) has written a new sorting
1472 function which uses the `merge sort' algorithm, and is said to be
1473 significantly faster than the old GNU `qsort' function. Merge sort is
1474 now the standard `qsort' function. The new algorithm can require a lot
1475 of temporary storage; so, the old sorting function is called when the
1476 required storage is not available.
1478 * The C library now includes Michael Glad's Ultra Fast Crypt, which
1479 provides the Unix `crypt' function, plus some other entry points.
1481 * The code and header files taken from 4.4 BSD have been updated with the
1482 latest files released from Berkeley.
1483 \f
1484 ----------------------------------------------------------------------
1485 Copyright information:
1487 Copyright (C) 1992-1999,2000,2001,2002 Free Software Foundation, Inc.
1489 Permission is granted to anyone to make or distribute verbatim copies
1490 of this document as received, in any medium, provided that the
1491 copyright notice and this permission notice are preserved,
1492 thus giving the recipient permission to redistribute in turn.
1494 Permission is granted to distribute modified versions
1495 of this document, or of portions of it,
1496 under the above conditions, provided also that they
1497 carry prominent notices stating who last changed them.
1498 \f
1499 Local variables:
1500 version-control: never
1501 End: