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1 GNU C Library NEWS -- history of user-visible changes. 2004-10-19
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 Patch by Jakub Jelinek and Ulrich Drepper.
44 \f
45 Version 2.3.3
47 * New functions `dladdr1' and `dlinfo' in <dlfcn.h> provide more ways to
48 interrogate the dynamic linker, compatible with the Solaris interface.
50 * ELF thread-local storage support (TLS) now works on PowerPC and PowerPC64;
51 implemented by Paul Mackerras, Steven Munroe, and Roland McGrath.
53 * getifaddrs now uses the netlink interface on Linux to get its information.
54 Implemented by Thorsten Kukuk.
56 * getaddrinfo now implements AI_V4MAPPED, AI_ALL, and AI_ADDRCONF.
57 Implemented by Ulrich Drepper.
59 * support for non-executable stacks on x86 has been added. Changes mostly
60 by Roland McGrath.
62 * regex is now much faster for multibyte locales. Changes by Jakub Jelinek
63 and Ulrich Drepper.
65 * getaddrinfo now performs destination address selection according to
66 RFC 3484.
67 \f
68 Version 2.3.2
70 * Thread-safe interfaces for many functions that access locale data
71 were added in version 2.3, but these features were omitted from NEWS.
72 Many functions have variants with an `_l' suffix that take a `locale_t'
73 object as a parameter rather than consulting the current locale.
74 The new functions `newlocale', `duplocale', and `freelocale' in <locale.h>
75 create and maintain `locale_t' objects. Additionally, the new function
76 `uselocale' sets "the current locale" (as used by functions not so
77 parameterized) set for an individual thread. These features were added
78 in version 2.3, implemented by Ulrich Drepper and Roland McGrath.
80 * The functions getresuid, getresgid, setresuid, and setresgid, which
81 have long been available on Linux, are now declared in <unistd.h>
82 and are now also available on the Hurd.
84 * ELF thread-local storage support (TLS) now works on x86-64.
86 * The new dynamic string token $LIB is expanded in shared library names.
87 This normally expands to lib, but on some 64-bit platforms to lib64 instead.
89 * Aldy Hernandez contributed complete software floating point support for
90 PowerPC machines with no FPU.
92 * fexecve is implemented on Linux.
94 * The `btowc' function should work at least twice as fast due to
95 specialized callbacks in the iconv modules. Implemented by Bruno Haible.
97 * With approriate thread add-ons cancelable functions are now implemented
98 in libc.so as well. No need to call the function in libpthread. This
99 change allowed to finally disable the incorrect and expensive handling
100 of weak definition in ld.so.
102 * Yet more PLT entries in libc.so have been removed. We finally arrived
103 at the bare minimum. Startup times improved appropriately.
105 * Support for the new Linux/x86 system call interface was added. The
106 AT_SYSINFO auxiliary vector entry is recognized and handled.
107 \f
108 Version 2.3
110 * Masahide Washizawa contributed iconv modules for IBM1163 and IBM1164
111 charsets.
113 * iconv (the program and the interface) now accepts empty names (excluding
114 options like //TRANSLIT) to mean "use charset of current locale".
116 * localedef can now transliterate characters in strings which are not in
117 the provided charmap. The information from the input locale is used.
119 * Prelinking support was added for ELF targets. This requires additional
120 tools and recent versions of the GNU binutils. Contributed by Jakub Jelinek.
122 * Read-only stdio streams now use mmap to speed up operation by eliminating
123 copying and buffer underflows. To use add 'm' to the mode string of
124 the fopen/fdopen/freopen call. Implemented by Ulrich Drepper.
126 * The malloc functions were completely rewritten by Wolfram Gloger based
127 on Doug Lea's malloc-2.7.0.c.
129 * Isamu Hasegawa contributed a completely new and POSIX-conformant
130 implementation of regex.
132 * Bruno Haible upgraded the iconv and locale implementation to support
133 Unicode 3.2.
135 * Contents of the LC_* and LANG environment variables in the CEN style are
136 not recognized anymore. It never was used. Change by Ulrich Drepper.
138 * The runtime (ld.so, libc, libpthread for Linux) now can handle the ELF
139 thread-local storage (TLS) ABI on some platforms.
140 Changes by Ulrich Drepper. SH support by Kaz Kojima.
142 * Bruno Haible contributed iconv converters for ISO-2022-JP-3, SHIFT JIS-X0213,
143 EUC-JISX0213, and TSCII.
145 * New header <ifaddrs.h> with functions `getifaddrs' and `freeifaddrs':
146 BSD-compatible interface for getting all network interface addresses.
147 Implementation for IPv4 by Roland McGrath.
149 * Loading of locale data is faster due to the introduction of a locale
150 archive. Implemented by Roland McGrath and Ulrich Drepper.
152 * Startup times are significantly reduced by not using exported functions
153 inside the library itself. Changes by Jakub Jelinek, Roland McGrath,
154 and Ulrich Drepper.
156 * Steven Munroe contributed a port to PowerPC64/Linux.
157 \f
158 Version 2.2.6
160 * The Hurd now uses the GNU libio implementation of stdio rather than the
161 old GNU stdio implementation, and uses a new ABI (libc.so.0.3).
163 * The Hurd on x86 now has the `ioperm' function and <sys/io.h> header file
164 with the same behavior as the Linux system call of the same name.
165 \f
166 Version 2.2.5
168 * Stephen Moshier implemented log2, log10, powl and cbrtl for the
169 128-bit long double format.
171 * Masahide Washizawa contributed iconv modules for IBM1132, IBM1133, IBM1160,
172 IBM1161, and IBM1162 charsets.
174 * Andreas Jaeger contributed a port to x86-64/Linux.
176 * Peter Bruin contributed a port to PowerPC/Hurd.
178 * libc functions using I/O streams now can handle wide-oriented streams
179 as well.
181 * optimizations in the dynamic linker. Binaries created by recent binutils
182 versions start up quicker due to reduced time spent on relocations.
184 * Support for use of gcc3 added by Jakub Jelinek and HJ Lu.
185 \f
186 Version 2.2.4
188 * Stephen Moshier implemented cosh, expm1, log1p, acos, sinh, tanh,
189 asinh, atanh, j0 for the 128-bit long double format.
191 * Bruno Haible updated all the code handling Unicode in some form to
192 support Unicode 3.1.
194 * Speed of regex for single-byte locales is back to previous levels.
195 Patch by Isamu Hasegawa.
197 * Alpha, SPARC, and IA-64 now also using floating stacks.
199 * Startup time of internationalized applications greatly improved through
200 iconv cache. Use iconvconfig to generate the cache file.
201 Contributed by Ulrich Drepper.
203 * The IA-64 specific part of ld.so was rewritten to eliminate some pretty
204 severe performance problems. Patch by David Mosberger.
206 * The Hurd port got a lot more functionality like AIO, various stdio
207 extensions, etc. Mainly done by Roland McGrath.
209 * mtrace can now lookup symbols in shared libraries.
210 \f
211 Version 2.2.3
213 * Intel's IA-64 math library is largely integrated. It provides fast and
214 accurate implementatations for most basic and standard math functions
215 in float, double, and long double format.
217 * Stephen Moshier implemented j0, j1, jn, y0, y1, yn, lgamma, erf, erfc,
218 and asin for the 96-bit long double format and asin, log, tan for the
219 128-bit long double format.
221 * The beginning of a last-bit accurate math library by IBM Haifa were added.
222 The basic double functions exist today. Contributed by Abraham Ziv
223 <ziv@il.ibm.com>, Moshe Olshansky <olshansk@il.ibm.com>, Ealan Henis
224 <ealan@il.ibm.com>, and Anna Reitman <reitman@il.ibm.com>.
226 * An asynchronous name lookup library was added. The interface is designed
227 after POSIX AIO. The proposal was circulated beforehand to get comments.
228 No negative ones came in. Implemented by Ulrich Drepper.
230 * Port to S390/64bit contributed by Martin Schwidefsky
231 <schwidefsky@de.ibm.com>.
233 * David Mosberger <davidm@hpl.hp.com> implemented the setcontext family
234 of functions for Linux/IA-64.
236 * The RPC code is now thread safe. Threads can now use the same service
237 of different services at the same time. Patch by Eric Norum
238 <eric.norum@usask.ca> with some help by Ulrich Drepper.
240 * Martin Schwidefsky <schwidefsky@de.ibm.com> implemented the setcontext
241 family of functions for Linux/S390.
243 * Ulrich Drepper <drepper@redhat.com> implemented the setcontext family
244 of functions for Linux/x86.
246 * Port to Linux/CRIS contributed by Axis Communications.
247 \f
248 Version 2.2.2
250 * Lots of headers were cleaned up. Using the tool in the conform/ subdir
251 we can now check for namespace violations and missing declarations. The
252 result is that almost all headers are now Unix-compliant (as defined in
253 the upcoming XPG6). The negative side is that some programs might need
254 corrections, too, if they depend on the incorrect form of the headers in
255 previous versions which defined too many symbols and included too many
256 other headers.
258 * regex now handles multibyte character sets correctly.
259 Contributed by Isamu Hasegawa <isamu@yamato.ibm.com>.
261 * iconv (the program) does now conform to the upcoming XPG6 and handles
262 charmaps. Instead of the charset names the path of charmaps can be
263 provided and the conversion happens based on this data.
264 Contributed by Ulrich Drepper.
266 * The locale program now provides detailed information about the installed
267 locales. While
269 locale -a
271 only lists the names of the supported locales
273 locale -a --verbose
275 provides details such as country, language, and codeset name.
276 Contributed by Ulrich Drepper.
277 \f
278 Version 2.2.1
280 * The gencat program now parses the input file according to the charset
281 selected by the LC_CTYPE category. This is important for stateful
282 character sets. To make generating catalogs easier there is a way
283 to overwrite the charset selected by the locale: before the first
284 message or $ quote line the catalog can contain a line like
286 $ codeset=ISO-8859-2
288 to select the charset (ISO-8859-2 in this case).
290 Implemented by Shinya Hanataka and Ulrich Drepper.
292 * New codeset conversion modules: IBM-922 (Estonia PC codeset),
293 IBM-1124 (Ukraine PC codeset), IBM-1129 (Vietnamese PC codeset).
294 Contributed by Masahide Washizawa <washi@jp.ibm.com>.
296 * Optimized string functions for Alpha ev6 and ev67 by Richard Henderson
297 <rth@redhat.com> and Rick Gorton <rick.gorton@alpha-processor.com>.
299 * The LANGUAGE environment variable is now ignored unless the locale is
300 changed from the default "C" locale.
302 * The usual bug fixes.
303 \f
304 Version 2.2
306 * Greg McGary added runtime support for bounds checking using gcc's
307 new -fbounded-pointers option. ix86 target is complete. PowerPC
308 is in progress.
310 * Thorsten Kukuk added secure mode support to nscd.
312 * The Berkeley db libraries have been removed.
314 Related, the nss_db module is now in a separate package since it
315 obviously requires a database library being available.
317 * Wide character I/O streams implemented by Ulrich Drepper.
319 * Functions from the extended socket API added by Ulrich Drepper.
321 * Functions feenableexcept and fedisableexcept to control the
322 behaviour of individual exceptions have been added by Andreas Jaeger.
324 * ldconfig program added by Andreas Jaeger and Jakub Jelinek.
326 * The resolver code has been updated from bind 8.2.3-T5B which supports
327 threads. The integration was done by Andreas Jaeger, Adam D. Bradley,
328 and Mark Kettenis.
330 This change could in some situations effect backward compatibility. Since
331 now `_res' is a thread-local instead of a global variable, modifying it
332 in one thread does not have any effect in other threads.
334 The resolver library was also extended to allow IPv6 as the transport
335 protocol for the requests. This work was done by Stig Venaas.
337 * Compatibility code for K&R C compilers has been removed from the
338 header files. A ISO C compiler is needed to use the library
339 (conforming to either C89 or C99 standard).
341 * Complete rewrite of the localedef program to support multibyte character
342 sets. Implement handling of ISO 14651 and ISO 14652. Rewrite strcoll,
343 strxfrm, wcscoll, and wcsxfrm functions. Make isw*() functions work.
344 Implemented by Ulrich Drepper.
346 Bruno Haible significantly improved the generation and use of the data
347 structures for the wide character tables.
349 * Plural handling in gettext implemented by Ulrich Drepper.
351 * The utmp daemon has been removed.
353 * The port to MIPS-Linux has been finished by Andreas Jaeger.
355 * A port to Hitachi SH3 and SH4 has been contributed by Kazumoto Kojima
356 and Yutaka Niibe.
358 * POSIX clocks and timers implemented by Kaz Kylheku and Ulrich Drepper.
360 * POSIX barriers implemented by Kaz Kylheku.
362 * POSIX spawn function family implemented by Ulrich Drepper.
364 * POSIX spinlocks are now available.
366 * Timed wait functions for mutex, rwlock, and semaphores are implemented.
368 * the configure option --enable-kernel=X.Y.Z allows to strip out
369 compatibility for kernel versions before X.Y.Z. This is currently only
370 implemented for Linux.
372 * the sockaddr_in6 structure changed. The IPv6 working group added a new
373 field sin6_scope_id. This means that all programs using IPv6 should be
374 recompiled. Don't expect binary compatibility with previous glibc
375 versions.
377 * various conversion modules for IBM character sets contributed by
378 Masahide Washizawa.
380 * IA-64 port by Jes Sorensen and HJ Lu.
382 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
383 Compiling the GNU C Library for Linux/ia64
384 ******************************************
386 Please refer to the file INSTALL in the same directory as you found
387 this file for general information about configuring and compiling
388 glibc.
390 For general inquiries about glibc under Linux/ia64 please use the
391 following mailing list linux-ia64@linuxia64.org or one of the relevant
392 glibc mailing lists.
394 Recommended Tools for Compilation
395 =================================
397 In order for glibc-2.2 to build correctly on the ia64 you need at
398 least the following versions of the GNU tools (the :
400 * The Cygnus toolchain snapshot for the ia64 as of August 4
401 including the provided set of patches. It is however recommend
402 you use the October 24 toolchain snapshot or a more recent version.
404 OR alternatively you can try the following (the Cygnus toolchain is
405 the recommended solution):
407 * GCC and binutils, GAS and GNU LD out of CVS from
408 sources.redhat.com as of August 28, 2000 or later. The CVS tree
409 may require special patches to work properly on the ia64.
411 Configuring and compiling GNU Libc for Linux/ia64
412 =================================================
414 The library requires Linux kernel version 2.4.0-test4-000728 or
415 later to funtion properly. Besides that it support for debug libraries
416 is currently untested. Hence the following options
417 are required for configuring the library:
419 --disable-debug --enable-kernel=2.4.0
421 It is also important that you make sure the library picks up the
422 appropriate kernel header files, if you do not have recent enough
423 kernel headers in /usr/src/linux/include, you should use the
424 --with-headers=<path> option to specify the location.
426 As an example I personally use the following options to configure
427 the library:
429 --disable-debug
430 --disable-cvs
431 --enable-kernel=2.4.0
432 --host=ia64-linux
433 --enable-add-ons=yes
434 --prefix=/usr
435 --with-headers=/home/jes/linux/include
438 Good luck
440 Jes Sorensen <jes@linuxcare.com>,
441 November 14th, 2000
442 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
443 \f
444 Version 2.1.3
446 * bug fixes
448 \f
449 Version 2.1.2
451 * bug fixes
453 \f
454 Version 2.1.1
456 * New ISO C 9x function _Exit, imaxabs, and imaxdiv are added.
458 * New xdr functions are added; some rpc functions are now 64bit clean.
460 * Fixed a number of bugs and memory leaks (especially in NIS+ code).
462 * Fixed known incompatibilities with glibc 2.0.
464 * New functions lock64, strchrnul, rawmemchr, getutmp and getutmpx.
466 * Optimized a number of functions (especially the ELF dynamic loader).
468 * Update timezone data files.
470 * lots of charmaps corrections
472 * some new locale definitions and charmaps
474 \f
475 Version 2.1
477 * Richard Henderson corrected size of struct timeval on Linux/Alpha to
478 conform to POSIX member type requirements. Symbol versions have been
479 adjusted as needed within the library, and for direct use by applications,
480 but there is potential for problems if third-party libraries use
481 struct timeval as part of their interface. This does not present
482 a problem for X and other "essential" system libraries.
484 * An additional locale model to support C++ Standard Library locale
485 model and probably more was implemented by Ulrich Drepper.
487 * Eric Youngdale and Ulrich Drepper implemented versioning of objects on
488 symbol level.
490 * Miles Bader provided the `argp' function family to support hierachical
491 command line argument parsing, layered on top of getopt.
493 * strtod accepts new hexadecimal floating-point format from ISO C 9X.
495 * printf has two new specifiers %a and %A to print hexadecimal flaoting-point
496 numbers.
498 * scanf recognizes the %a and %A format for scanning floating point numbers.
500 * the new headers <stdint.h> and <inttypes.h> from ISO C 9X provides
501 information and interfaces for the available integer types.
503 * about 130 new math functions were added to implement the ISO C9x math
504 library.
506 * the new header <complex.h> contains definitions of the complex math
507 functions from ISO C 9X.
509 * the new header <tgmath.h> defines generic macros to use complex or
510 real valued functions.
512 * Thorsten Kukuk provided an implementation for NIS+, securelevel 0, 1 and 2.
514 * Andreas Jaeger provided a test suite for the math library.
516 * Mark Kettenis implemented the utmpx interface and an utmp daemon.
518 * Ulrich Drepper added character set conversion functions (iconv).
520 * Optimized string functions have been added.
522 * The localedata addon is now part of glibc.
524 * An implementation of profiling shared libraries was added by Ulrich Drepper.
526 * Thorsten Kukuk and Ulrich Drepper provided an implementation for a caching
527 daemon for NSS (nscd).
529 Missing a better place here are some numbers on improvements. Under
530 Linux 2.1.125 un-tar-ing the kernel sources takes
532 user system wall
534 using local files 12.19s 6.88s 22.91s
536 using NIS 13.92s 8.91s 26.34s
538 using NIS & nscd 10.37s 7.34s 25.30s
540 using NIS+ 27.57s 30.37s 640.46s
542 using NIS+ & nscd 10.25s 7.83s 26.51s
544 using NIS & old nscd [1] 13.83s 8.32s 29.60s
546 Keep in mind that non-namelookup related operations dominate above times.
547 It was just a common complain that using NIS+ unpacking the kernel is
548 horribly slow.
550 [1] The old nscd implementation is not available anymore since it was
551 distributed with glibc up to version 2.0.98 and thus is now replaced.
553 * Tim Waugh provided an implementation of the POSIX.2 wordexp function family.
555 * Mark Kettenis provided a Hesiod NSS module.
557 * The ELF dynamic loader knows how to process dynamic string tokens ($ORIGIN
558 and $PLATFORM) in RPATHs and similar strings (Ulrich Drepper).
560 * rcmd can now handle netgroups (Dick Streefland).
562 * A port to the ARM was contributed by Phil Blundell, Pat Beirne and Scott
563 Bambrough.
565 * Support for the IPv6 protocol has been added to the socket API, as per the
566 latest draft standards.
568 * Support for Linux 2.2 has been added.
570 * Interface changes relative to the latest 2.0.x release:
571 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
572 addseverity NEW: Unix98
573 alphasort64 NEW: LFS
574 argp_err_exit_status NEW: argp, GNU ext
575 argp_error NEW: argp, GNU ext
576 argp_failure NEW: argp, GNU ext
577 argp_help NEW: argp, GNU ext
578 argp_parse NEW: argp, GNU ext
579 argp_program_bug_address NEW: argp, GNU ext
580 argp_program_version NEW: argp, GNU ext
581 argp_program_version_hook NEW: argp, GNU ext
582 argp_state_help NEW: argp, GNU ext
583 argp_usage NEW: argp, GNU ext
584 authdes_create NEW: Secure RPC
585 authdes_getucred NEW: Secure RPC
586 authdes_pk_create NEW: Secure RPC
587 backtrace NEW: GNU ext.
588 backtrace_symbols NEW: GNU ext.
589 backtrace_symbols_fd NEW: GNU ext.
590 cacos NEW: ISO C 9x
591 cacosf NEW: ISO C 9x
592 cacosh NEW: ISO C 9x
593 cacoshf NEW: ISO C 9x
594 cacoshl NEW: ISO C 9x
595 cacosl NEW: ISO C 9x
596 capget NEW: kernel
597 capset NEW: kernel
598 carg NEW: ISO C 9x
599 cargf NEW: ISO C 9x
600 cargl NEW: ISO C 9x
601 casin NEW: ISO C 9x
602 casinf NEW: ISO C 9x
603 casinh NEW: ISO C 9x
604 casinhf NEW: ISO C 9x
605 casinhl NEW: ISO C 9x
606 casinl NEW: ISO C 9x
607 catan NEW: ISO C 9x
608 catanf NEW: ISO C 9x
609 catanh NEW: ISO C 9x
610 catanhf NEW: ISO C 9x
611 catanhl NEW: ISO C 9x
612 catanl NEW: ISO C 9x
613 cbc_crypt NEW: Secure RPC
614 ccos NEW: ISO C 9x
615 ccosf NEW: ISO C 9x
616 ccosh NEW: ISO C 9x
617 ccoshf NEW: ISO C 9x
618 ccoshl NEW: ISO C 9x
619 ccosl NEW: ISO C 9x
620 cexp NEW: ISO C 9x
621 cexpf NEW: ISO C 9x
622 cexpl NEW: ISO C 9x
623 cimag NEW: ISO C 9x
624 cimagf NEW: ISO C 9x
625 cimagl NEW: ISO C 9x
626 clearerr_locked REMOVED
627 clntunix_create NEW: sunrpc ext
628 clog NEW: ISO C 9x
629 clog10 NEW: ISO C 9x
630 clog10f NEW: ISO C 9x
631 clog10l NEW: ISO C 9x
632 clogf NEW: ISO C 9x
633 clogl NEW: ISO C 9x
634 conj NEW: ISO C 9x
635 conjf NEW: ISO C 9x
636 conjl NEW: ISO C 9x
637 cpow NEW: ISO C 9x
638 cpowf NEW: ISO C 9x
639 cpowl NEW: ISO C 9x
640 cproj NEW: ISO C 9x
641 cprojf NEW: ISO C 9x
642 cprojl NEW: ISO C 9x
643 creal NEW: ISO C 9x
644 crealf NEW: ISO C 9x
645 creall NEW: ISO C 9x
646 creat64 NEW: LFS
647 csin NEW: ISO C 9x
648 csinf NEW: ISO C 9x
649 csinh NEW: ISO C 9x
650 csinhf NEW: ISO C 9x
651 csinhl NEW: ISO C 9x
652 csinl NEW: ISO C 9x
653 csqrt NEW: ISO C 9x
654 csqrtf NEW: ISO C 9x
655 csqrtl NEW: ISO C 9x
656 ctan NEW: ISO C 9x
657 ctanf NEW: ISO C 9x
658 ctanh NEW: ISO C 9x
659 ctanhf NEW: ISO C 9x
660 ctanhl NEW: ISO C 9x
661 ctanl NEW: ISO C 9x
662 des_setparity NEW: Secure RPC
663 ecb_crypt NEW: Secure RPC
664 endutxent NEW: Unix98
665 exp10 NEW: ISO C 9x
666 exp10f NEW: ISO C 9x
667 exp10l NEW: ISO C 9x
668 exp2 NEW: ISO C 9x
669 exp2f NEW: ISO C 9x
670 exp2l NEW: ISO C 9x
671 fattach NEW: STREAMS
672 fdetach NEW: STREAMS
673 fdim NEW: ISO C 9x
674 fdimf NEW: ISO C 9x
675 fdiml NEW: ISO C 9x
676 feclearexcept NEW: ISO C 9x
677 fegetenv NEW: ISO C 9x
678 fegetexceptflag NEW: ISO C 9x
679 fegetround NEW: ISO C 9x
680 feholdexcept NEW: ISO C 9x
681 feof_locked REMOVED
682 feraiseexcept NEW: ISO C 9x
683 ferror_locked REMOVED
684 fesetenv NEW: ISO C 9x
685 fesetexceptflag NEW: ISO C 9x
686 fesetround NEW: ISO C 9x
687 fetestexcept NEW: ISO C 9x
688 feupdateenv NEW: ISO C 9x
689 fflush_locked REMOVED
690 ffsl NEW: GNU ext.
691 ffsll NEW: GNU ext.
692 fgetpos64 NEW: LFS
693 fgets_unlocked NEW: GNU ext.
694 fileno_locked REMOVED
695 fma NEW: ISO C 9x
696 fmaf NEW: ISO C 9x
697 fmal NEW: ISO C 9x
698 fmax NEW: ISO C 9x
699 fmaxf NEW: ISO C 9x
700 fmaxl NEW: ISO C 9x
701 fmin NEW: ISO C 9x
702 fminf NEW: ISO C 9x
703 fminl NEW: ISO C 9x
704 fmtmsg NEW: Unix98
705 fopen64 NEW: LFS
706 fputc_locked REMOVED
707 fputs_unlocked NEW: GNU ext.
708 fread_unlocked NEW: GNU ext.
709 freopen64 NEW: LFS
710 fseeko NEW: Unix98
711 fsetpos64 NEW: LFS
712 fstatfs64 NEW: LFS
713 fstatvfs NEW: Unix98
714 fstatvfs64 NEW: LFS
715 ftello NEW: Unix98
716 ftello64 NEW: LFS
717 ftruncate64 NEW: LFS
718 ftw64 NEW: LFS
719 fwrite_unlocked NEW: GNU ext.
720 gai_strerror NEW: IPv6
721 gamma_r REMOVED
722 gammaf_r REMOVED
723 gammal_r REMOVED
724 getchar_locked REMOVED
725 getdate NEW: Unix98
726 getdate_err NEW: Unix98
727 getdate_r NEW: GNU ext.
728 getmsg NEW: STREAMS
729 getnameinfo NEW: IPv6
730 getnetname NEW: Secure RPC
731 getpmsg NEW: STREAMS
732 getpt NEW: Unix98 PTY
733 getrlimit64 NEW: LFS
734 getutxent NEW: Unix98
735 getutxid NEW: Unix98
736 getutxline NEW: Unix98
737 glob64 NEW: GNU ext.
738 globfree64 NEW: GNU ext.
739 gnu_get_libc_release NEW: GNU ext.
740 gnu_get_libc_version NEW: GNU ext.
741 grantpt NEW: Unix98 PTY
742 host2netname NEW: Secure RPC
743 iconv NEW: iconv
744 iconv_close NEW: iconv
745 iconv_open NEW: iconv
746 if_freenameindex NEW: IPv6
747 if_indextoname NEW: IPv6
748 if_nameindex NEW: IPv6
749 if_nametoindex NEW: IPv6
750 in6addr_any NEW: IPv6
751 in6addr_loopback NEW: IPv6
752 inet6_isipv4mapped NEW: IPv6
753 isastream NEW: STREAMS
754 iswblank NEW: GNU ext.
755 key_decryptsession NEW: Secure RPC
756 key_decryptsession_pk NEW: Secure RPC
757 key_encryptsession NEW: Secure RPC
758 key_encryptsession_pk NEW: Secure RPC
759 key_gendes NEW: Secure RPC
760 key_get_conv NEW: Secure RPC
761 key_secretkey_is_set NEW: Secure RPC
762 key_setnet NEW: Secure RPC
763 key_setsecret NEW: Secure RPC
764 llrint NEW: ISO C 9x
765 llrintf NEW: ISO C 9x
766 llrintl NEW: ISO C 9x
767 llround NEW: ISO C 9x
768 llroundf NEW: ISO C 9x
769 llroundl NEW: ISO C 9x
770 log2 NEW: ISO C 9x
771 log2f NEW: ISO C 9x
772 log2l NEW: ISO C 9x
773 lrint NEW: ISO C 9x
774 lrintf NEW: ISO C 9x
775 lrintl NEW: ISO C 9x
776 lround NEW: ISO C 9x
777 lroundf NEW: ISO C 9x
778 lroundl NEW: ISO C 9x
779 lseek64 NEW: LFS
780 makecontext NEW: Unix98
781 mempcpy NEW: GNU ext.
782 mmap64 NEW: LFS
783 moncontrol REMOVED
784 modify_ldt NEW: kernel
785 nan NEW: ISO C 9x
786 nanf NEW: ISO C 9x
787 nanl NEW: ISO C 9x
788 nearbyint NEW: ISO C 9x
789 nearbyintf NEW: ISO C 9x
790 nearbyintl NEW: ISO C 9x
791 netname2host NEW: Secure RPC
792 netname2user NEW: Secure RPC
793 nexttoward NEW: ISO C 9x
794 nexttowardf NEW: ISO C 9x
795 nexttowardl NEW: ISO C 9x
796 nftw NEW: Unix98
797 nftw64 NEW: LFS
798 open64 NEW: LFS
799 passwd2des NEW: Secure RPC
800 pow10 NEW: GNU ext.
801 pow10f NEW: GNU ext.
802 pow10l NEW: GNU ext.
803 pread NEW: Unix98
804 pread64 NEW: LFS
805 printf_size NEW: GNU ext.
806 printf_size_info NEW: GNU ext.
807 profil_counter REMOVED
808 pthread_mutexattr_getkind_np REPLACED
809 pthread_mutexattr_setkind_np REPLACED
810 ptsname NEW: Unix98 PTY
811 ptsname_r NEW: Unix98 PTY
812 putc_locked REMOVED
813 putchar_locked REMOVED
814 putgrent NEW: GNU ext.
815 putmsg NEW: STREAMS
816 putpmsg NEW: STREAMS
817 pututxline NEW: Unix98
818 pwrite NEW: Unix98
819 pwrite64 NEW: LFS
820 readdir64 NEW: LFS
821 readdir64_r NEW: LFS
822 remquo NEW: ISO C 9x
823 remquof NEW: ISO C 9x
824 remquol NEW: ISO C 9x
825 round NEW: ISO C 9x
826 roundf NEW: ISO C 9x
827 roundl NEW: ISO C 9x
828 rtime NEW: GNU ext.
829 scalbln NEW: ISO C 9x
830 scalblnf NEW: ISO C 9x
831 scalblnl NEW: ISO C 9x
832 scandir64 NEW: LFS
833 sendfile NEW: kernel
834 setcontext NEW: Unix98
835 setrlimit64 NEW: LFS
836 setutxent NEW: Unix98
837 sighold NEW: Unix98
838 sigignore NEW: Unix98
839 sigqueue NEW: POSIX.1b
840 sigrelse NEW: Unix98
841 sigset NEW: POSIX.1b
842 sigtimedwait NEW: POSIX.1b
843 sigwaitinfo NEW: POSIX.1b
844 sincos NEW: GNU ext.
845 sincosf NEW: GNU ext.
846 sincosl NEW: GNU ext.
847 statfs64 NEW: LFS
848 statvfs NEW: Unix98
849 statvfs64 NEW: LFS
850 strcasestr NEW: GNU ext.
851 strtoimax NEW: ISO C 9x
852 strtoumax NEW: ISO C 9x
853 strverscmp NEW: GNU ext.
854 svcauthdes_stats NEW: Secure RPC
855 svcunix_create NEW: sunrpc etx
856 svcunixfd_create NEW: sunrpc ext
857 swapcontext NEW: Unix98
858 tcgetsid NEW: Unix98 PTY
859 tdestroy NEW: GNU ext.
860 tgamma NEW: ISO C 9x
861 tgammaf NEW: ISO C 9x
862 tgammal NEW: ISO C 9x
863 tmpfile64 NEW: LFS
864 trunc NEW: ISO C 9x
865 truncate64 NEW: LFS
866 truncf NEW: ISO C 9x
867 truncl NEW: ISO C 9x
868 umount2 NEW: kernel
869 unlockpt NEW: Unix98 PTY
870 updwtmpx NEW: Unix98
871 user2netname NEW: Secure RPC
872 utmpxname NEW: Unix98
873 versionsort NEW: GNU ext.
874 versionsort64 NEW: GNU ext.
875 waitid NEW: Unix98
876 wcscasecmp NEW: GNU ext.
877 wcsncasecmp NEW: GNU ext.
878 wcsnlen NEW: GNU ext.
879 wcstoimax NEW: ISO C 9x
880 wcstoll NEW: ISO C 9x
881 wcstoull NEW: ISO C 9x
882 wcstoumax NEW: ISO C 9x
883 wcswcs NEW: Unix98
884 wordexp NEW: POSIX.2
885 wordfree NEW: POSIX.2
886 write_profiling REMOVED
887 xdecrypt NEW: Secure RPC
888 xdr_authdes_cred NEW: Secure RPC
889 xdr_authdes_verf NEW: Secure RPC
890 xdr_cryptkeyarg NEW: Secure RPC
891 xdr_cryptkeyarg2 NEW: Secure RPC
892 xdr_cryptkeyres NEW: Secure RPC
893 xdr_getcredres NEW: Secure RPC
894 xdr_key_netstarg NEW: Secure RPC
895 xdr_key_netstres NEW: Secure RPC
896 xdr_keybuf NEW: Secure RPC
897 xdr_keystatus NEW: Secure RPC
898 xdr_netnamestr NEW: Secure RPC
899 xdr_sizeof NEW: Secure RPC
900 xdr_unixcred NEW: sunrpc ext
901 xencrypt NEW: Secure RPC
902 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
903 \f
904 Version 2.0.6
906 * more bug fixes
908 \f
909 Version 2.0.5
911 * more bug fixes
913 * inet_ntoa is thread-safe
915 * updwtmp is moved from libutil to libc
917 * rewrite of cbrt function
919 * update of timezone data
920 \f
921 Version 2.0.4
923 * more bug fixes
924 \f
925 Version 2.0.3
927 * more bug fixes
928 \f
929 Version 2.0.2
931 * more bug fixes
933 * add atoll function
935 * fix complex problems in Berkeley DB code
937 * fix math functions
938 \f
939 Version 2.0.1
941 * fixed lots of header problems (especially Linux/GNU specific)
943 * dynamic loader preserves all registers
945 * Roland McGrath provided support for handling of auxiliary objects in
946 the ELF dynamic loader.
948 * support for parallel builds is improved
949 \f
950 Version 2.0
952 * GNU extensions are no longer declared by default. To enable them you
953 must define the macro `_GNU_SOURCE' in your program or compile with
954 `-D_GNU_SOURCE'.
956 * The library has changed from using GNU ld symbol aliases to using weak
957 symbols where available. The ELF object file format supports weak
958 symbols; GNU ld also supports weak symbols in the a.out format. (There
959 is also now support for other GNU ld extensions in ELF. Use the
960 `--with-elf' option to configure to indicate you have ELF, and
961 `--with-gnu-ld' if using GNU ld.) This change resulted in the deletion
962 of many files which contained only symbol aliases, reducing the size of
963 the source and the compiled library; many other files were renamed to
964 less cryptic names previously occupied by the symbol alias files.
965 There is a new header file <elf.h> for programs which operate on
966 files in the ELF format.
968 * Converted to Autoconf version 2, so `configure' has more options.
969 Run `configure --help' to see the details.
971 * The library can now be configured to build profiling, highly-optimized
972 (but undebuggable), and/or shared libraries (ELF with GNU ld only). The
973 `--enable-profile', `--enable-omitfp', and `--enable-shared' options to
974 `configure' enable building these extra libraries. The shared library is
975 built by default when using both ELF and GNU ld. When shared libraries
976 are enabled, the new library `-ldl' is available for arbitrary run-time
977 loading of shared objects; its interface is defined in <dlfcn.h>. The
978 new header file <link.h> gives access to the internals of the run-time
979 dynamic linker, `ld.so'. The shell script `ldd' is similar to the
980 application of same name on other systems and it provides information
981 about dynamically linked binaries.
983 * The C library now provides the run-time support code for profiling
984 executables compiled with `-pg'. Programs can control the profiling code
985 through the interface in <sys/gmon.h>. The `gmon.out' files written by
986 the GNU C library can be read only by GNU `gprof' (from GNU binutils);
987 the support for this file format was contributed by David Mosberger-Tang.
989 * The math code has been replaced with a math library based on fdlibm from
990 Sun, and modified by JT Conklin and Ulrich Drepper with i387 support, by
991 Ian Taylor with `float' functions and by Ulrich Drepper with `long double'
992 functions. The math functions now reside in a separate library, so
993 programs using them will need to use `-lm' their linking commands.
995 * John C. Bowman contributed optimized ix87 assembler inline functions.
997 * Ulrich Drepper has contributed support for an `/etc/nsswitch.conf'
998 mechanism similar to that found in Solaris 2. This is now used for the
999 group, passwd, hosts, networks, services, protocols, rpc, ethers,
1000 shadow, netgroup, publickey, and alias databases. The `nsswitch.conf'
1001 file controls what services are used for each individual database. This
1002 works by loading shared libraries with names specified in `nsswitch.conf',
1003 so service modules can be changed or added at any time without even
1004 relinking any program. Currently there are the file, db, and NIS based
1005 NSS services available.
1007 * The new functions `strtoq' and `strtouq' parse integer values from
1008 strings, like `strtol' and `strtoul', but they return `long long int' and
1009 `unsigned long long int' values, respectively (64-bit quantities).
1011 * The new functions `strtof' and `strtold' parse floating-point values from
1012 strings, like `strtod', but they return `float' and `long double' values,
1013 respectively (on some machines `double' and `long double' are the same).
1015 * Ulrich Drepper has contributed new implementations of the floating-point
1016 printing and reading code used in the `printf' family of functions and
1017 `strtod', `strtof', and `strtold'. These new functions are perfectly
1018 accurate, and much faster than the old ones.
1020 * The implementation of the POSIX locale model was completely rewritten by
1021 Ulrich Drepper. This includes the new programs `localedef' and `locale'
1022 to compile the POSIX locale definition.
1024 * The former dummy implementations of the strcoll and strxfrm function are
1025 now replaced by fully functional code contributed by Ulrich Drepper. The
1026 collation information comes from the POSIX locale definitions.
1028 * The new header <langinfo.h> defines an interface for accessing
1029 various locale-dependent data (using the locale chosen with `setlocale').
1031 * Ulrich Drepper has contributed a new suite of functions for operation on
1032 wide-character and multibyte-character strings, in <wchar.h>;
1033 and classification and case conversion of wide characters, in <wctype.h>.
1034 These new functions are conforming to the ISO C, Amendement 1 specification.
1036 * There is now a second implementation of the standard I/O library available.
1037 It comes from GNU libg++ as was written by Per Bothner, heavily modified
1038 by Hongjiu Lu and made thread safe by Ulrich Drepper.
1040 * You can now use positional parameter specifications in format strings
1041 for the `printf' and `scanf' families of functions. For example,
1042 `printf ("Number %2$d, Mr %1$s\n", "Jones", 6);'' prints
1043 ``Number 6, Mr Jones''. This is mainly useful when providing different
1044 format strings for different languages, whose grammars may dictate
1045 different orderings of the values being printed. To support this
1046 feature, the interface for `register_printf_handler' has changed; see
1047 the header file <printf.h> for details.
1049 * The `printf' and `scanf' families of functions now understand a new
1050 formatting flag for numeric conversions: the ' flag (e.g. %'d or %'f) says
1051 to group numbers as indicated by the locale; for `scanf' and friends, this
1052 says to accept as valid only a number with all the proper grouping
1053 separators in the right places. In the default "C" locale, numbers are
1054 not grouped; but locales for specific countries will define the usual
1055 conventions (i.e. separate thousands with `,' in the US locale).
1057 * The pgrp functions have been regularized, slightly incompatibly but much
1058 less confusingly. The core functions are now `getpgid' and `setpgid',
1059 which take arguments for the PID to operate on; the POSIX.1 `getpgrp' (no
1060 argument) and BSD `setpgrp' (identical to `setpgid') functions are
1061 provided for compatibility. There is no longer an incompatible `getpgrp'
1062 with an argument declared under _BSD_SOURCE; no BSD code uses it.
1064 * The new header file <fts.h> and suite of functions simplify programs that
1065 operate on directory trees. This code comes from 4.4 BSD.
1067 * The resolver code has been updated from the BIND 4.9.5-P1 release.
1068 Parts of the code were heavily modified by Ulrich Drepper to fit in the
1069 NSS scheme used in glibc.
1071 * There is a new malloc debugging hook `__memalign_hook'.
1073 * There are new typedefs `ushort' for `unsigned short int' and `uint' for
1074 `unsigned int' in <sys/types.h>. These are for compatibility only and
1075 their use is discouraged.
1077 * The `-lmcheck' library to enable standard malloc debugging hooks is now
1078 done differently, so that it works even without GNU ld.
1080 * New function `euidaccess' checks allowed access to a file like `access',
1081 but using the effective IDs instead of the real IDs.
1083 * The time zone data files have been updated for the latest and greatest
1084 local time conventions of the countries of the world.
1086 * The new function `dirfd' extracts the file descriptor used by a DIR stream;
1087 see <dirent.h>.
1089 * The new functions `ecvt', `fcvt', and `gcvt' provide an obsolete interface
1090 for formatting floating-point numbers. They are provided only for
1091 compatibility; new programs should use `sprintf' instead. There are
1092 also equivalent function for the `long double' floating-point type and
1093 all functions also exist in a reentrant form.
1095 * The new auxiliary library `-lutil' from 4.4 BSD contains various
1096 functions for maintaining the login-record files (primarily of use to
1097 system programs such as `login'), and convenient functions for
1098 allocating and initializing a pseudo-terminal (pty) device.
1100 * Ulrich Drepper has contributed new support for System V style
1101 shared memory and IPC on systems that support it.
1103 * Ulrich Drepper has contributed several miscellaneous new functions found
1104 in System V: The `hsearch' family of functions provide an effective
1105 implementation of hash tables; `a64l' and `l64a' provide a very simple
1106 binary to ASCII mapping; `drand48' and friends provide a 48-bit random
1107 number generator.
1109 * Ulrich Drepper has contributed new reentrant counterparts for the
1110 `random' and `hsearch' families of functions; `random_r', `hsearch_r', etc.
1112 * Ulrich Drepper has contributed new, highly-optimized versions of several
1113 string functions for the i486/Pentium family of processors.
1115 * Ulrich Drepper has updated the Linux-specific code, based largely
1116 on work done in Hongjiu Lu's version of GNU libc for Linux.
1117 The GNU library now supports Linux versions 2.0.10 and later,
1118 using the ELF object file format (i[3456]86-*-linux).
1120 * Andreas Schwab has ported the C library to Linux/m68k (m68k-*-linux).
1122 * David Mosberger-Tang and Richard Henderson have ported the C library
1123 to Linux/Alpha (alpha-*-linux). Richard Henderson contributed the
1124 dynamic linking support for ELF/Alpha.
1126 * Richard Henderson contributed several Alpha optimized assembler function
1127 for arithmetic and string handling.
1129 * Ulrich Drepper has contributed a new set of message catalog functions to
1130 support multiple languages using the <libintl.h> interface, for use with
1131 his new package GNU gettext. Translation volunteers have contributed
1132 catalogs of the library's messages in Spanish, German, and Korean.
1134 * For compatibility with XPG4, Ulrich Drepper has contributed the `gencat'
1135 program and the `catgets' function for reading the catalog files it
1136 creates. (The <libintl.h> interface is preferred; we include the
1137 <nl_types.h> interface using `catgets' only for source compatibility with
1138 programs already written to use it.)
1140 * New header file <values.h> gives SVID-compatible names for <limits.h>
1141 constants.
1143 * Various new macros, declarations, and small header files for compatibility
1144 with 4.4 BSD.
1146 * New function `group_member' is a convenient way to check if a process has
1147 a given effective group ID.
1149 * When using GCC 2.7 and later, the socket functions are now declared in a
1150 special way so that passing an argument of type `struct sockaddr_in *',
1151 `struct sockaddr_ns *', or `struct sockaddr_un *' instead of the generic
1152 `struct sockaddr *' type, does not generate a type-clash warning.
1154 * New function `error' declared in header file <error.h> is a convenient
1155 function for printing error messages and optionally exiting; this is the
1156 canonical function used in GNU programs. The new functions `err', `warn',
1157 and friends in header file <err.h> are the canonical 4.4 BSD interface for
1158 doing the same thing.
1160 * The <glob.h> interface has several new flags from 4.4 BSD that extend the
1161 POSIX.2 `glob' function to do ~ and {...} expansion.
1163 * New function `unsetenv' complements `setenv' for compatibility with 4.4 BSD.
1164 `clearenv' which is used in POSIX.9 is also available.
1166 * New function `getsid' returns session ID number on systems that support it.
1168 * We have incorporated the 4.4 BSD `db' library (version 1.85). New header
1169 files <db.h> and <mpool.h> provide a rich set of functions for several
1170 types of simple databases stored in memory and in files, and <ndbm.h> is
1171 an old `ndbm'-compatible interface using the `db' functions. Link with
1172 `-ldb' to get these functions.
1174 * New macro `strdupa' copies a string like `strdup', but uses local stack
1175 space from `alloca' instead of dynamic heap space from `malloc'.
1177 * New function `strnlen' is like `strlen' but searches only a given maximum
1178 number of characters for the null terminator. `stpncpy', `strndup' and
1179 `strndupa' are similar variants for the `stpcpy', `strdup' and `strdupa'
1180 function.
1182 * New function `statfs' in header <sys/statfs.h>.
1184 * The new <argz.h> and <envz.h> interfaces contributed by Miles Bader
1185 provide convenient functions for operating on blocks of null-terminated
1186 strings.
1188 * A new suite of functions in <utmp.h> handle all the details of reading
1189 and writing the utmp file.
1191 * An implementation of the NIS/YP(tm) based NSS service was contributed by
1192 Thorsten Kukuk.
1194 * Paul Eggert and Ulrich Drepper modified the `strftime' function to be
1195 completely POSIX compliant and also implemented the extended functionality
1196 to handle alternate digit representation and alternate era date formats.
1198 * Ulrich Drepper provided an implementation of the `strptime' function
1199 defined in XPG4.2 which transforms a string into a `struct tm' value.
1201 * Paul Eggert provided the tzselect shell script as part of the timezone
1202 code. The shell script makes it easy to select the correct timezone
1203 specification.
1205 * The implementation of the malloc family of functions is completely replaced
1206 by a new implementation by Doug Lea with many improvements by Wolfram Gloger.
1207 The implementation uses the mmap function (if available) and it is
1208 optimized for the use in multi threaded programs.
1210 * Ulrich Drepper contributed a MD5 "encryption" for the crypt family of
1211 functions. This new functionality is usable by specifying a special
1212 salt string and it is compatible with implementation on *BSD systems.
1214 * Lots of functions from the XPG4.2 standard were added by Ulrich Drepper:
1215 `getsubopt' to handle second level command line options, `bsd_signal'
1216 to access BSD style `signal' functionality, the obsolete `regexp' style
1217 expression matcher.
1219 * the `lchown' function is available on system which support this
1220 functionality.
1222 * The implementation of the shadow password handling function was contributed
1223 by Ulrich Drepper.
1225 * David Mosberger-Tang changed the SunRPC implementation to be 64bit safe.
1227 * POSIX.1g support was added. The <sys/select.h> header is available,
1228 `isfdtype' and `pselect' are implemented. Craig Metz contributed an
1229 implementation of `getaddrinfo'.
1230 \f
1231 Version 1.09
1233 * For cross-compilation you should now set `BUILD_CC' instead of `HOST_CC'.
1235 * New header file <fstab.h> and new functions `getfsspec', `getfsent' and
1236 friends, for parsing /etc/fstab. This code comes from 4.4 BSD.
1238 * The new function `daemon' from 4.4 BSD is useful for server programs that
1239 want to put themselves in the background.
1241 * Joel Sherrill has contributed support for several standalone boards that
1242 run without an operating system.
1244 * `printf', `scanf' and friends now accept a `q' type modifier for long
1245 long int as well as `ll'. Formats using these might be `%qu' or `%lld'.
1247 * All of the code taken from BSD (notably most of the math and networking
1248 routines) has been updated from the BSD 4.4-Lite release.
1250 * The resolver code has been updated from the BIND-4.9.3-BETA9 release.
1252 * The new functions `getdomainname' and `setdomainname' fetch or change the
1253 YP/NIS domain name. These are system calls which exist on systems which
1254 have YP (aka NIS).
1256 * The time zone data files have been updated for the latest international
1257 conventions.
1259 * The SunRPC programs `portmap' and `rpcinfo' are now installed in
1260 $(sbindir) (usually /usr/local/sbin) instead of $(bindir).
1261 \f
1262 Version 1.08
1264 * The C library now includes support for Sun RPC, from Sun's free
1265 RPCSRC-4.0 distribution. The `portmap', `rpcinfo', and `rpcgen' programs
1266 are included. (There is still no support for YP.)
1268 * Tom Quinn has contributed a port of the C library to SGI machines running
1269 Irix 4 (mips-sgi-irix4).
1271 * The new `lockf' function is a simplified interface to the locking
1272 facilities of `fcntl', included for compatibility.
1274 * New time functions `timegm', `timelocal', and `dysize' for compatibility.
1276 * New header file <sys/timeb.h> and new function `ftime' for compatibility.
1278 * New header files <poll.h> and <sys/poll.h> and new function `poll' for
1279 compatibility.
1281 * The error message printed by `assert' for a failed assertion now includes
1282 the name of the program (if using GNU ld) and the name of the calling
1283 function (with versions of GCC that support this).
1285 * The `psignal' function is now declared in <signal.h>, not <stdio.h>.
1287 * The library now includes the <sys/mman.h> header file and memory
1288 management functions `mmap', `munmap', `mprotect', `msync', and
1289 `madvise', on systems that support those facilities.
1291 * The interface for `mcheck' has changed slightly: the function called to
1292 abort the program when an allocation inconsistency is detected now takes
1293 an argument that indicates the type of failure. The new function
1294 `mprobe' lets you request a consistency check for a particular block at
1295 any time (checks are normally done only when you call `free' or `realloc'
1296 on a block).
1298 * It is now possible to easily cross-compile the C library, building on one
1299 system a library to run on another machine and/or operating system. All
1300 you need to do is set the variable `HOST_CC' in `configparms' to the
1301 native compiler for programs to run on the machine you are building on (a
1302 few generator programs are used on Unix systems); set `CC' to the
1303 cross-compiler.
1305 * The new function `fexecve' (only implemented on the GNU system) executes
1306 a program file given a file descriptor already open on the file.
1307 \f
1308 Version 1.07
1310 * Brendan Kehoe has contributed most of a port to the DEC Alpha
1311 running OSF/1 (alpha-dec-osf1). He says it is 75% complete.
1313 * You can set the variable `libprefix' in `configparms' to specify a prefix
1314 to be prepended to installed library files; this makes it easy to install
1315 the GNU C library to be linked as `-lgnuc' or whatever.
1317 * The new `stpncpy' is a cross between `stpcpy' and `strncpy': It
1318 copies a limited number of characters from a string, and returns the
1319 address of the last character written.
1321 * You no longer need to check for whether the installed `stddef.h' is
1322 compatible with the GNU C library. configure now checks for you.
1324 * You can now define a per-stream `fileno' function to convert the
1325 stream's cookie into an integral file descriptor.
1327 * ``malloc (0)'' no longer returns a null pointer. Instead, it
1328 allocates zero bytes of storage, and returns a unique pointer which
1329 you can pass to `realloc' or `free'. The behavior is undefined if
1330 you dereference this pointer.
1332 * The C library now runs on Sony NEWS m68k machines running either
1333 NewsOS 3 or NewsOS 4.
1335 * The new `syscall' function is a system-dependent primitive function
1336 for invoking system calls. It has the canonical behavior on Unix
1337 systems, including unreliable return values for some calls (such as
1338 `pipe', `fork' and `getppid').
1340 * The error code `EWOULDBLOCK' is now obsolete; it is always defined
1341 to `EAGAIN', which is the preferred name. On systems whose kernels
1342 use two distinct codes, the C library now translates EWOULDBLOCK to
1343 EAGAIN in every system call function.
1344 \f
1345 Version 1.06
1347 * The GNU C Library Reference Manual is now distributed with the library.
1348 `make dvi' will produce a DVI file of the printed manual.
1349 `make info' will produce Info files that you can read on line using C-h i
1350 in Emacs or the `info' program.
1351 Please send comments on the manual to bug-glibc-manual@gnu.org.
1353 * The library now supports SVR4 on i386s (i386-unknown-sysv4).
1355 * Brendan Kehoe has contributed a port to Sun SPARCs running Solaris 2.
1357 * Jason Merrill has contributed a port to the Sequent Symmetry running
1358 Dynix version 3 (i386-sequent-dynix).
1360 * The library has been ported to i386s running SCO 3.2.4 (also known as SCO
1361 ODT 2.0; i386-unknown-sco3.2.4) or SCO 3.2 (i386-unknown-sco3.2).
1363 * New function `memory_warnings' lets you arrange to get warnings when
1364 malloc is running out of memory to allocate, like Emacs gives you.
1366 * The C library now contains the relocating allocator used in Emacs 19 for
1367 its editing buffers. This allocator (ralloc) minimizes allocation
1368 overhead and fragmentation by moving allocated regions around whenever it
1369 needs to. You always refer to a ralloc'd region with a "handle" (a
1370 pointer to a pointer--an object of type `void **').
1372 * There is a new `printf' format: `%m' gives you the string corresponding
1373 to the error code in `errno'.
1375 * In `scanf' formats, you can now use `%as' or `%a[' to do the normal `%s'
1376 or `%[' conversion, but instead of filling in a fixed-sized buffer you
1377 pass, the `a' modifier says to fill in a `char **' you pass with a
1378 malloc'd string.
1380 * The `fnmatch' function supports the new flag bits `FNM_LEADING_DIR' and
1381 `FNM_CASEFOLD'. `FNM_LEADING_DIR' lets a pattern like `foo*' match a
1382 name like `foo/bar'. `FNM_CASEFOLD' says to ignore case in matching.
1384 * `mkstemp' is a traditional Unix function to atomically create and open a
1385 uniquely-named temporary file.
1386 \f
1387 Version 1.05
1389 * The standard location for the file that says what the local timezone is
1390 has changed again. It is now `/usr/local/etc/localtime' (or more
1391 precisely, `${prefix}/etc/localtime') rather than `/etc/localtime'.
1393 * The distribution no longer contains any files with names longer than 14
1394 characters.
1396 * `struct ttyent' has two new flag bits: TTY_TRUSTED and TTY_CONSOLE.
1397 These are set by the new `trusted' and `console' keywords in `/etc/ttys'.
1399 * New functions `ttyslot' and `syslog' from 4.4 BSD.
1400 \f
1401 Version 1.04
1403 * The configuration process has changed quite a bit. The `configure'
1404 script is now used just like the configuration scripts for other GNU
1405 packages. The `sysdeps' directory hierarchy is much rearranged.
1406 The file `INSTALL' explains the new scheme in detail.
1408 * The header files no longer need to be processed into ANSI C and
1409 traditional C versions. There is just one set of files to install, and
1410 it will work with ANSI or old C compilers (including `gcc -traditional').
1412 * Brendan Kehoe and Ian Lance Taylor have ported the library to the
1413 MIPS DECStation running Ultrix 4.
1415 * The Sun 4 startup code (crt0) can now properly load SunOS 4 shared libraries.
1416 Tom Quinn contributed the initial code. The GNU C library can NOT yet be
1417 made itself into a shared library.
1419 * Yet further improved support for the i386, running 4.3 BSD-like systems
1420 (such as Mach 3 with the Unix single-server), or System V.
1422 * New function `strncasecmp' to do case-insensitive string comparison
1423 with limited length.
1425 * New function `strsep' is a reentrant alternative to `strtok'.
1427 * New functions `scandir' and `alphasort' for searching directories.
1429 * New function `setenv' is a better interface to `putenv'.
1431 * Ian Lance Taylor has contributed an implementation of the SVID `ftw'
1432 function for traversing a directory tree.
1434 * The GNU obstack package is now also part of the C library.
1435 The new function `open_obstack_stream' creates a stdio stream that
1436 writes onto an obstack; `obstack_printf' and `obstack_vprintf' do
1437 formatted output directly to an obstack.
1439 * Miscellaneous new functions: reboot, nice, sigaltstack (4.4 BSD only),
1440 cfmakeraw, getusershell, getpass, swab, getttyent, seteuid, setegid.
1442 * `FNM_FILE_NAME' is another name for `FNM_PATHNAME', used with `fnmatch'.
1444 * The new functions `strfry' and `memfrob' do mysterious and wonderful
1445 things to your strings.
1447 * There are some new test programs: test-fseek, testmb, and testrand.
1449 * Some work has been done to begin porting the library to 4.4 BSD and Linux.
1450 These ports are not finished, but are a good starting place for really
1451 supporting those systems.
1453 * `/etc/localtime' is now the standard location for the file that says what
1454 the local timezone is, rather than `/usr/local/lib/zoneinfo/localtime'.
1455 This follows the general principle that `/etc' is the place for all local
1456 configuration files.
1458 * The C library header files now use `extern "C"' when used by the C++
1459 compiler, so the C library should now work with C++ code.
1461 * The header file <bstring.h> is gone. <string.h> now declares bcopy,
1462 bcmp, bzero, and ffs. (Update: nowadays these functions are declared
1463 in <strings.h>.)
1465 * Mike Haertel (of GNU e?grep and malloc fame) has written a new sorting
1466 function which uses the `merge sort' algorithm, and is said to be
1467 significantly faster than the old GNU `qsort' function. Merge sort is
1468 now the standard `qsort' function. The new algorithm can require a lot
1469 of temporary storage; so, the old sorting function is called when the
1470 required storage is not available.
1472 * The C library now includes Michael Glad's Ultra Fast Crypt, which
1473 provides the Unix `crypt' function, plus some other entry points.
1475 * The code and header files taken from 4.4 BSD have been updated with the
1476 latest files released from Berkeley.
1477 \f
1478 ----------------------------------------------------------------------
1479 Copyright information:
1481 Copyright (C) 1992-1999,2000,2001,2002 Free Software Foundation, Inc.
1483 Permission is granted to anyone to make or distribute verbatim copies
1484 of this document as received, in any medium, provided that the
1485 copyright notice and this permission notice are preserved,
1486 thus giving the recipient permission to redistribute in turn.
1488 Permission is granted to distribute modified versions
1489 of this document, or of portions of it,
1490 under the above conditions, provided also that they
1491 carry prominent notices stating who last changed them.
1492 \f
1493 Local variables:
1494 version-control: never
1495 End: