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1 GNU C Library NEWS -- history of user-visible changes. 2004-8-5
2 Copyright (C) 1992-2002,2003,2004 Free Software Foundation, Inc.
3 See the end for copying conditions.
5 Please send GNU C library bug reports via <http://sources.redhat.com/bugzilla/>
6 using `glibc' in the "product" field.
7 \f
8 Version 2.3.4
10 * Support for RFC 3678. Real implementations exist only for Linux so far.
11 Implemented by Ulrich Drepper.
12 \f
13 Version 2.3.3
15 * New functions `dladdr1' and `dlinfo' in <dlfcn.h> provide more ways to
16 interrogate the dynamic linker, compatible with the Solaris interface.
18 * ELF thread-local storage support (TLS) now works on PowerPC and PowerPC64;
19 implemented by Paul Mackerras, Steven Munroe, and Roland McGrath.
21 * getifaddrs now uses the netlink interface on Linux to get its information.
22 Implemented by Thorsten Kukuk.
24 * getaddrinfo now implements AI_V4MAPPED, AI_ALL, and AI_ADDRCONF.
25 Implemented by Ulrich Drepper.
27 * support for non-executable stacks on x86 has been added. Changes mostly
28 by Roland McGrath.
30 * regex is now much faster for multibyte locales. Changes by Jakub Jelinek
31 and Ulrich Drepper.
33 * getaddrinfo now performs destination address selection according to
34 RFC 3484.
35 \f
36 Version 2.3.2
38 * Thread-safe interfaces for many functions that access locale data
39 were added in version 2.3, but these features were omitted from NEWS.
40 Many functions have variants with an `_l' suffix that take a `locale_t'
41 object as a parameter rather than consulting the current locale.
42 The new functions `newlocale', `duplocale', and `freelocale' in <locale.h>
43 create and maintain `locale_t' objects. Additionally, the new function
44 `uselocale' sets "the current locale" (as used by functions not so
45 parameterized) set for an individual thread. These features were added
46 in version 2.3, implemented by Ulrich Drepper and Roland McGrath.
48 * The functions getresuid, getresgid, setresuid, and setresgid, which
49 have long been available on Linux, are now declared in <unistd.h>
50 and are now also available on the Hurd.
52 * ELF thread-local storage support (TLS) now works on x86-64.
54 * The new dynamic string token $LIB is expanded in shared library names.
55 This normally expands to lib, but on some 64-bit platforms to lib64 instead.
57 * Aldy Hernandez contributed complete software floating point support for
58 PowerPC machines with no FPU.
60 * fexecve is implemented on Linux.
62 * The `btowc' function should work at least twice as fast due to
63 specialized callbacks in the iconv modules. Implemented by Bruno Haible.
65 * With approriate thread add-ons cancelable functions are now implemented
66 in libc.so as well. No need to call the function in libpthread. This
67 change allowed to finally disable the incorrect and expensive handling
68 of weak definition in ld.so.
70 * Yet more PLT entries in libc.so have been removed. We finally arrived
71 at the bare minimum. Startup times improved appropriately.
73 * Support for the new Linux/x86 system call interface was added. The
74 AT_SYSINFO auxiliary vector entry is recognized and handled.
75 \f
76 Version 2.3
78 * Masahide Washizawa contributed iconv modules for IBM1163 and IBM1164
79 charsets.
81 * iconv (the program and the interface) now accepts empty names (excluding
82 options like //TRANSLIT) to mean "use charset of current locale".
84 * localedef can now transliterate characters in strings which are not in
85 the provided charmap. The information from the input locale is used.
87 * Prelinking support was added for ELF targets. This requires additional
88 tools and recent versions of the GNU binutils. Contributed by Jakub Jelinek.
90 * Read-only stdio streams now use mmap to speed up operation by eliminating
91 copying and buffer underflows. To use add 'm' to the mode string of
92 the fopen/fdopen/freopen call. Implemented by Ulrich Drepper.
94 * The malloc functions were completely rewritten by Wolfram Gloger based
95 on Doug Lea's malloc-2.7.0.c.
97 * Isamu Hasegawa contributed a completely new and POSIX-conformant
98 implementation of regex.
100 * Bruno Haible upgraded the iconv and locale implementation to support
101 Unicode 3.2.
103 * Contents of the LC_* and LANG environment variables in the CEN style are
104 not recognized anymore. It never was used. Change by Ulrich Drepper.
106 * The runtime (ld.so, libc, libpthread for Linux) now can handle the ELF
107 thread-local storage (TLS) ABI on some platforms.
108 Changes by Ulrich Drepper. SH support by Kaz Kojima.
110 * Bruno Haible contributed iconv converters for ISO-2022-JP-3, SHIFT JIS-X0213,
111 EUC-JISX0213, and TSCII.
113 * New header <ifaddrs.h> with functions `getifaddrs' and `freeifaddrs':
114 BSD-compatible interface for getting all network interface addresses.
115 Implementation for IPv4 by Roland McGrath.
117 * Loading of locale data is faster due to the introduction of a locale
118 archive. Implemented by Roland McGrath and Ulrich Drepper.
120 * Startup times are significantly reduced by not using exported functions
121 inside the library itself. Changes by Jakub Jelinek, Roland McGrath,
122 and Ulrich Drepper.
124 * Steven Munroe contributed a port to PowerPC64/Linux.
125 \f
126 Version 2.2.6
128 * The Hurd now uses the GNU libio implementation of stdio rather than the
129 old GNU stdio implementation, and uses a new ABI (libc.so.0.3).
131 * The Hurd on x86 now has the `ioperm' function and <sys/io.h> header file
132 with the same behavior as the Linux system call of the same name.
133 \f
134 Version 2.2.5
136 * Stephen Moshier implemented log2, log10, powl and cbrtl for the
137 128-bit long double format.
139 * Masahide Washizawa contributed iconv modules for IBM1132, IBM1133, IBM1160,
140 IBM1161, and IBM1162 charsets.
142 * Andreas Jaeger contributed a port to x86-64/Linux.
144 * Peter Bruin contributed a port to PowerPC/Hurd.
146 * libc functions using I/O streams now can handle wide-oriented streams
147 as well.
149 * optimizations in the dynamic linker. Binaries created by recent binutils
150 versions start up quicker due to reduced time spent on relocations.
152 * Support for use of gcc3 added by Jakub Jelinek and HJ Lu.
153 \f
154 Version 2.2.4
156 * Stephen Moshier implemented cosh, expm1, log1p, acos, sinh, tanh,
157 asinh, atanh, j0 for the 128-bit long double format.
159 * Bruno Haible updated all the code handling Unicode in some form to
160 support Unicode 3.1.
162 * Speed of regex for single-byte locales is back to previous levels.
163 Patch by Isamu Hasegawa.
165 * Alpha, SPARC, and IA-64 now also using floating stacks.
167 * Startup time of internationalized applications greatly improved through
168 iconv cache. Use iconvconfig to generate the cache file.
169 Contributed by Ulrich Drepper.
171 * The IA-64 specific part of ld.so was rewritten to eliminate some pretty
172 severe performance problems. Patch by David Mosberger.
174 * The Hurd port got a lot more functionality like AIO, various stdio
175 extensions, etc. Mainly done by Roland McGrath.
177 * mtrace can now lookup symbols in shared libraries.
178 \f
179 Version 2.2.3
181 * Intel's IA-64 math library is largely integrated. It provides fast and
182 accurate implementatations for most basic and standard math functions
183 in float, double, and long double format.
185 * Stephen Moshier implemented j0, j1, jn, y0, y1, yn, lgamma, erf, erfc,
186 and asin for the 96-bit long double format and asin, log, tan for the
187 128-bit long double format.
189 * The beginning of a last-bit accurate math library by IBM Haifa were added.
190 The basic double functions exist today. Contributed by Abraham Ziv
191 <ziv@il.ibm.com>, Moshe Olshansky <olshansk@il.ibm.com>, Ealan Henis
192 <ealan@il.ibm.com>, and Anna Reitman <reitman@il.ibm.com>.
194 * An asynchronous name lookup library was added. The interface is designed
195 after POSIX AIO. The proposal was circulated beforehand to get comments.
196 No negative ones came in. Implemented by Ulrich Drepper.
198 * Port to S390/64bit contributed by Martin Schwidefsky
199 <schwidefsky@de.ibm.com>.
201 * David Mosberger <davidm@hpl.hp.com> implemented the setcontext family
202 of functions for Linux/IA-64.
204 * The RPC code is now thread safe. Threads can now use the same service
205 of different services at the same time. Patch by Eric Norum
206 <eric.norum@usask.ca> with some help by Ulrich Drepper.
208 * Martin Schwidefsky <schwidefsky@de.ibm.com> implemented the setcontext
209 family of functions for Linux/S390.
211 * Ulrich Drepper <drepper@redhat.com> implemented the setcontext family
212 of functions for Linux/x86.
214 * Port to Linux/CRIS contributed by Axis Communications.
215 \f
216 Version 2.2.2
218 * Lots of headers were cleaned up. Using the tool in the conform/ subdir
219 we can now check for namespace violations and missing declarations. The
220 result is that almost all headers are now Unix-compliant (as defined in
221 the upcoming XPG6). The negative side is that some programs might need
222 corrections, too, if they depend on the incorrect form of the headers in
223 previous versions which defined too many symbols and included too many
224 other headers.
226 * regex now handles multibyte character sets correctly.
227 Contributed by Isamu Hasegawa <isamu@yamato.ibm.com>.
229 * iconv (the program) does now conform to the upcoming XPG6 and handles
230 charmaps. Instead of the charset names the path of charmaps can be
231 provided and the conversion happens based on this data.
232 Contributed by Ulrich Drepper.
234 * The locale program now provides detailed information about the installed
235 locales. While
237 locale -a
239 only lists the names of the supported locales
241 locale -a --verbose
243 provides details such as country, language, and codeset name.
244 Contributed by Ulrich Drepper.
245 \f
246 Version 2.2.1
248 * The gencat program now parses the input file according to the charset
249 selected by the LC_CTYPE category. This is important for stateful
250 character sets. To make generating catalogs easier there is a way
251 to overwrite the charset selected by the locale: before the first
252 message or $ quote line the catalog can contain a line like
254 $ codeset=ISO-8859-2
256 to select the charset (ISO-8859-2 in this case).
258 Implemented by Shinya Hanataka and Ulrich Drepper.
260 * New codeset conversion modules: IBM-922 (Estonia PC codeset),
261 IBM-1124 (Ukraine PC codeset), IBM-1129 (Vietnamese PC codeset).
262 Contributed by Masahide Washizawa <washi@jp.ibm.com>.
264 * Optimized string functions for Alpha ev6 and ev67 by Richard Henderson
265 <rth@redhat.com> and Rick Gorton <rick.gorton@alpha-processor.com>.
267 * The LANGUAGE environment variable is now ignored unless the locale is
268 changed from the default "C" locale.
270 * The usual bug fixes.
271 \f
272 Version 2.2
274 * Greg McGary added runtime support for bounds checking using gcc's
275 new -fbounded-pointers option. ix86 target is complete. PowerPC
276 is in progress.
278 * Thorsten Kukuk added secure mode support to nscd.
280 * The Berkeley db libraries have been removed.
282 Related, the nss_db module is now in a separate package since it
283 obviously requires a database library being available.
285 * Wide character I/O streams implemented by Ulrich Drepper.
287 * Functions from the extended socket API added by Ulrich Drepper.
289 * Functions feenableexcept and fedisableexcept to control the
290 behaviour of individual exceptions have been added by Andreas Jaeger.
292 * ldconfig program added by Andreas Jaeger and Jakub Jelinek.
294 * The resolver code has been updated from bind 8.2.3-T5B which supports
295 threads. The integration was done by Andreas Jaeger, Adam D. Bradley,
296 and Mark Kettenis.
298 This change could in some situations effect backward compatibility. Since
299 now `_res' is a thread-local instead of a global variable, modifying it
300 in one thread does not have any effect in other threads.
302 The resolver library was also extended to allow IPv6 as the transport
303 protocol for the requests. This work was done by Stig Venaas.
305 * Compatibility code for K&R C compilers has been removed from the
306 header files. A ISO C compiler is needed to use the library
307 (conforming to either C89 or C99 standard).
309 * Complete rewrite of the localedef program to support multibyte character
310 sets. Implement handling of ISO 14651 and ISO 14652. Rewrite strcoll,
311 strxfrm, wcscoll, and wcsxfrm functions. Make isw*() functions work.
312 Implemented by Ulrich Drepper.
314 Bruno Haible significantly improved the generation and use of the data
315 structures for the wide character tables.
317 * Plural handling in gettext implemented by Ulrich Drepper.
319 * The utmp daemon has been removed.
321 * The port to MIPS-Linux has been finished by Andreas Jaeger.
323 * A port to Hitachi SH3 and SH4 has been contributed by Kazumoto Kojima
324 and Yutaka Niibe.
326 * POSIX clocks and timers implemented by Kaz Kylheku and Ulrich Drepper.
328 * POSIX barriers implemented by Kaz Kylheku.
330 * POSIX spawn function family implemented by Ulrich Drepper.
332 * POSIX spinlocks are now available.
334 * Timed wait functions for mutex, rwlock, and semaphores are implemented.
336 * the configure option --enable-kernel=X.Y.Z allows to strip out
337 compatibility for kernel versions before X.Y.Z. This is currently only
338 implemented for Linux.
340 * the sockaddr_in6 structure changed. The IPv6 working group added a new
341 field sin6_scope_id. This means that all programs using IPv6 should be
342 recompiled. Don't expect binary compatibility with previous glibc
343 versions.
345 * various conversion modules for IBM character sets contributed by
346 Masahide Washizawa.
348 * IA-64 port by Jes Sorensen and HJ Lu.
350 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
351 Compiling the GNU C Library for Linux/ia64
352 ******************************************
354 Please refer to the file INSTALL in the same directory as you found
355 this file for general information about configuring and compiling
356 glibc.
358 For general inquiries about glibc under Linux/ia64 please use the
359 following mailing list linux-ia64@linuxia64.org or one of the relevant
360 glibc mailing lists.
362 Recommended Tools for Compilation
363 =================================
365 In order for glibc-2.2 to build correctly on the ia64 you need at
366 least the following versions of the GNU tools (the :
368 * The Cygnus toolchain snapshot for the ia64 as of August 4
369 including the provided set of patches. It is however recommend
370 you use the October 24 toolchain snapshot or a more recent version.
372 OR alternatively you can try the following (the Cygnus toolchain is
373 the recommended solution):
375 * GCC and binutils, GAS and GNU LD out of CVS from
376 sources.redhat.com as of August 28, 2000 or later. The CVS tree
377 may require special patches to work properly on the ia64.
379 Configuring and compiling GNU Libc for Linux/ia64
380 =================================================
382 The library requires Linux kernel version 2.4.0-test4-000728 or
383 later to funtion properly. Besides that it support for debug libraries
384 is currently untested. Hence the following options
385 are required for configuring the library:
387 --disable-debug --enable-kernel=2.4.0
389 It is also important that you make sure the library picks up the
390 appropriate kernel header files, if you do not have recent enough
391 kernel headers in /usr/src/linux/include, you should use the
392 --with-headers=<path> option to specify the location.
394 As an example I personally use the following options to configure
395 the library:
397 --disable-debug
398 --disable-cvs
399 --enable-kernel=2.4.0
400 --host=ia64-linux
401 --enable-add-ons=yes
402 --prefix=/usr
403 --with-headers=/home/jes/linux/include
406 Good luck
408 Jes Sorensen <jes@linuxcare.com>,
409 November 14th, 2000
410 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
411 \f
412 Version 2.1.3
414 * bug fixes
416 \f
417 Version 2.1.2
419 * bug fixes
421 \f
422 Version 2.1.1
424 * New ISO C 9x function _Exit, imaxabs, and imaxdiv are added.
426 * New xdr functions are added; some rpc functions are now 64bit clean.
428 * Fixed a number of bugs and memory leaks (especially in NIS+ code).
430 * Fixed known incompatibilities with glibc 2.0.
432 * New functions lock64, strchrnul, rawmemchr, getutmp and getutmpx.
434 * Optimized a number of functions (especially the ELF dynamic loader).
436 * Update timezone data files.
438 * lots of charmaps corrections
440 * some new locale definitions and charmaps
442 \f
443 Version 2.1
445 * Richard Henderson corrected size of struct timeval on Linux/Alpha to
446 conform to POSIX member type requirements. Symbol versions have been
447 adjusted as needed within the library, and for direct use by applications,
448 but there is potential for problems if third-party libraries use
449 struct timeval as part of their interface. This does not present
450 a problem for X and other "essential" system libraries.
452 * An additional locale model to support C++ Standard Library locale
453 model and probably more was implemented by Ulrich Drepper.
455 * Eric Youngdale and Ulrich Drepper implemented versioning of objects on
456 symbol level.
458 * Miles Bader provided the `argp' function family to support hierachical
459 command line argument parsing, layered on top of getopt.
461 * strtod accepts new hexadecimal floating-point format from ISO C 9X.
463 * printf has two new specifiers %a and %A to print hexadecimal flaoting-point
464 numbers.
466 * scanf recognizes the %a and %A format for scanning floating point numbers.
468 * the new headers <stdint.h> and <inttypes.h> from ISO C 9X provides
469 information and interfaces for the available integer types.
471 * about 130 new math functions were added to implement the ISO C9x math
472 library.
474 * the new header <complex.h> contains definitions of the complex math
475 functions from ISO C 9X.
477 * the new header <tgmath.h> defines generic macros to use complex or
478 real valued functions.
480 * Thorsten Kukuk provided an implementation for NIS+, securelevel 0, 1 and 2.
482 * Andreas Jaeger provided a test suite for the math library.
484 * Mark Kettenis implemented the utmpx interface and an utmp daemon.
486 * Ulrich Drepper added character set conversion functions (iconv).
488 * Optimized string functions have been added.
490 * The localedata addon is now part of glibc.
492 * An implementation of profiling shared libraries was added by Ulrich Drepper.
494 * Thorsten Kukuk and Ulrich Drepper provided an implementation for a caching
495 daemon for NSS (nscd).
497 Missing a better place here are some numbers on improvements. Under
498 Linux 2.1.125 un-tar-ing the kernel sources takes
500 user system wall
502 using local files 12.19s 6.88s 22.91s
504 using NIS 13.92s 8.91s 26.34s
506 using NIS & nscd 10.37s 7.34s 25.30s
508 using NIS+ 27.57s 30.37s 640.46s
510 using NIS+ & nscd 10.25s 7.83s 26.51s
512 using NIS & old nscd [1] 13.83s 8.32s 29.60s
514 Keep in mind that non-namelookup related operations dominate above times.
515 It was just a common complain that using NIS+ unpacking the kernel is
516 horribly slow.
518 [1] The old nscd implementation is not available anymore since it was
519 distributed with glibc up to version 2.0.98 and thus is now replaced.
521 * Tim Waugh provided an implementation of the POSIX.2 wordexp function family.
523 * Mark Kettenis provided a Hesiod NSS module.
525 * The ELF dynamic loader knows how to process dynamic string tokens ($ORIGIN
526 and $PLATFORM) in RPATHs and similar strings (Ulrich Drepper).
528 * rcmd can now handle netgroups (Dick Streefland).
530 * A port to the ARM was contributed by Phil Blundell, Pat Beirne and Scott
531 Bambrough.
533 * Support for the IPv6 protocol has been added to the socket API, as per the
534 latest draft standards.
536 * Support for Linux 2.2 has been added.
538 * Interface changes relative to the latest 2.0.x release:
539 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
540 addseverity NEW: Unix98
541 alphasort64 NEW: LFS
542 argp_err_exit_status NEW: argp, GNU ext
543 argp_error NEW: argp, GNU ext
544 argp_failure NEW: argp, GNU ext
545 argp_help NEW: argp, GNU ext
546 argp_parse NEW: argp, GNU ext
547 argp_program_bug_address NEW: argp, GNU ext
548 argp_program_version NEW: argp, GNU ext
549 argp_program_version_hook NEW: argp, GNU ext
550 argp_state_help NEW: argp, GNU ext
551 argp_usage NEW: argp, GNU ext
552 authdes_create NEW: Secure RPC
553 authdes_getucred NEW: Secure RPC
554 authdes_pk_create NEW: Secure RPC
555 backtrace NEW: GNU ext.
556 backtrace_symbols NEW: GNU ext.
557 backtrace_symbols_fd NEW: GNU ext.
558 cacos NEW: ISO C 9x
559 cacosf NEW: ISO C 9x
560 cacosh NEW: ISO C 9x
561 cacoshf NEW: ISO C 9x
562 cacoshl NEW: ISO C 9x
563 cacosl NEW: ISO C 9x
564 capget NEW: kernel
565 capset NEW: kernel
566 carg NEW: ISO C 9x
567 cargf NEW: ISO C 9x
568 cargl NEW: ISO C 9x
569 casin NEW: ISO C 9x
570 casinf NEW: ISO C 9x
571 casinh NEW: ISO C 9x
572 casinhf NEW: ISO C 9x
573 casinhl NEW: ISO C 9x
574 casinl NEW: ISO C 9x
575 catan NEW: ISO C 9x
576 catanf NEW: ISO C 9x
577 catanh NEW: ISO C 9x
578 catanhf NEW: ISO C 9x
579 catanhl NEW: ISO C 9x
580 catanl NEW: ISO C 9x
581 cbc_crypt NEW: Secure RPC
582 ccos NEW: ISO C 9x
583 ccosf NEW: ISO C 9x
584 ccosh NEW: ISO C 9x
585 ccoshf NEW: ISO C 9x
586 ccoshl NEW: ISO C 9x
587 ccosl NEW: ISO C 9x
588 cexp NEW: ISO C 9x
589 cexpf NEW: ISO C 9x
590 cexpl NEW: ISO C 9x
591 cimag NEW: ISO C 9x
592 cimagf NEW: ISO C 9x
593 cimagl NEW: ISO C 9x
594 clearerr_locked REMOVED
595 clntunix_create NEW: sunrpc ext
596 clog NEW: ISO C 9x
597 clog10 NEW: ISO C 9x
598 clog10f NEW: ISO C 9x
599 clog10l NEW: ISO C 9x
600 clogf NEW: ISO C 9x
601 clogl NEW: ISO C 9x
602 conj NEW: ISO C 9x
603 conjf NEW: ISO C 9x
604 conjl NEW: ISO C 9x
605 cpow NEW: ISO C 9x
606 cpowf NEW: ISO C 9x
607 cpowl NEW: ISO C 9x
608 cproj NEW: ISO C 9x
609 cprojf NEW: ISO C 9x
610 cprojl NEW: ISO C 9x
611 creal NEW: ISO C 9x
612 crealf NEW: ISO C 9x
613 creall NEW: ISO C 9x
614 creat64 NEW: LFS
615 csin NEW: ISO C 9x
616 csinf NEW: ISO C 9x
617 csinh NEW: ISO C 9x
618 csinhf NEW: ISO C 9x
619 csinhl NEW: ISO C 9x
620 csinl NEW: ISO C 9x
621 csqrt NEW: ISO C 9x
622 csqrtf NEW: ISO C 9x
623 csqrtl NEW: ISO C 9x
624 ctan NEW: ISO C 9x
625 ctanf NEW: ISO C 9x
626 ctanh NEW: ISO C 9x
627 ctanhf NEW: ISO C 9x
628 ctanhl NEW: ISO C 9x
629 ctanl NEW: ISO C 9x
630 des_setparity NEW: Secure RPC
631 ecb_crypt NEW: Secure RPC
632 endutxent NEW: Unix98
633 exp10 NEW: ISO C 9x
634 exp10f NEW: ISO C 9x
635 exp10l NEW: ISO C 9x
636 exp2 NEW: ISO C 9x
637 exp2f NEW: ISO C 9x
638 exp2l NEW: ISO C 9x
639 fattach NEW: STREAMS
640 fdetach NEW: STREAMS
641 fdim NEW: ISO C 9x
642 fdimf NEW: ISO C 9x
643 fdiml NEW: ISO C 9x
644 feclearexcept NEW: ISO C 9x
645 fegetenv NEW: ISO C 9x
646 fegetexceptflag NEW: ISO C 9x
647 fegetround NEW: ISO C 9x
648 feholdexcept NEW: ISO C 9x
649 feof_locked REMOVED
650 feraiseexcept NEW: ISO C 9x
651 ferror_locked REMOVED
652 fesetenv NEW: ISO C 9x
653 fesetexceptflag NEW: ISO C 9x
654 fesetround NEW: ISO C 9x
655 fetestexcept NEW: ISO C 9x
656 feupdateenv NEW: ISO C 9x
657 fflush_locked REMOVED
658 ffsl NEW: GNU ext.
659 ffsll NEW: GNU ext.
660 fgetpos64 NEW: LFS
661 fgets_unlocked NEW: GNU ext.
662 fileno_locked REMOVED
663 fma NEW: ISO C 9x
664 fmaf NEW: ISO C 9x
665 fmal NEW: ISO C 9x
666 fmax NEW: ISO C 9x
667 fmaxf NEW: ISO C 9x
668 fmaxl NEW: ISO C 9x
669 fmin NEW: ISO C 9x
670 fminf NEW: ISO C 9x
671 fminl NEW: ISO C 9x
672 fmtmsg NEW: Unix98
673 fopen64 NEW: LFS
674 fputc_locked REMOVED
675 fputs_unlocked NEW: GNU ext.
676 fread_unlocked NEW: GNU ext.
677 freopen64 NEW: LFS
678 fseeko NEW: Unix98
679 fsetpos64 NEW: LFS
680 fstatfs64 NEW: LFS
681 fstatvfs NEW: Unix98
682 fstatvfs64 NEW: LFS
683 ftello NEW: Unix98
684 ftello64 NEW: LFS
685 ftruncate64 NEW: LFS
686 ftw64 NEW: LFS
687 fwrite_unlocked NEW: GNU ext.
688 gai_strerror NEW: IPv6
689 gamma_r REMOVED
690 gammaf_r REMOVED
691 gammal_r REMOVED
692 getchar_locked REMOVED
693 getdate NEW: Unix98
694 getdate_err NEW: Unix98
695 getdate_r NEW: GNU ext.
696 getmsg NEW: STREAMS
697 getnameinfo NEW: IPv6
698 getnetname NEW: Secure RPC
699 getpmsg NEW: STREAMS
700 getpt NEW: Unix98 PTY
701 getrlimit64 NEW: LFS
702 getutxent NEW: Unix98
703 getutxid NEW: Unix98
704 getutxline NEW: Unix98
705 glob64 NEW: GNU ext.
706 globfree64 NEW: GNU ext.
707 gnu_get_libc_release NEW: GNU ext.
708 gnu_get_libc_version NEW: GNU ext.
709 grantpt NEW: Unix98 PTY
710 host2netname NEW: Secure RPC
711 iconv NEW: iconv
712 iconv_close NEW: iconv
713 iconv_open NEW: iconv
714 if_freenameindex NEW: IPv6
715 if_indextoname NEW: IPv6
716 if_nameindex NEW: IPv6
717 if_nametoindex NEW: IPv6
718 in6addr_any NEW: IPv6
719 in6addr_loopback NEW: IPv6
720 inet6_isipv4mapped NEW: IPv6
721 isastream NEW: STREAMS
722 iswblank NEW: GNU ext.
723 key_decryptsession NEW: Secure RPC
724 key_decryptsession_pk NEW: Secure RPC
725 key_encryptsession NEW: Secure RPC
726 key_encryptsession_pk NEW: Secure RPC
727 key_gendes NEW: Secure RPC
728 key_get_conv NEW: Secure RPC
729 key_secretkey_is_set NEW: Secure RPC
730 key_setnet NEW: Secure RPC
731 key_setsecret NEW: Secure RPC
732 llrint NEW: ISO C 9x
733 llrintf NEW: ISO C 9x
734 llrintl NEW: ISO C 9x
735 llround NEW: ISO C 9x
736 llroundf NEW: ISO C 9x
737 llroundl NEW: ISO C 9x
738 log2 NEW: ISO C 9x
739 log2f NEW: ISO C 9x
740 log2l NEW: ISO C 9x
741 lrint NEW: ISO C 9x
742 lrintf NEW: ISO C 9x
743 lrintl NEW: ISO C 9x
744 lround NEW: ISO C 9x
745 lroundf NEW: ISO C 9x
746 lroundl NEW: ISO C 9x
747 lseek64 NEW: LFS
748 makecontext NEW: Unix98
749 mempcpy NEW: GNU ext.
750 mmap64 NEW: LFS
751 moncontrol REMOVED
752 modify_ldt NEW: kernel
753 nan NEW: ISO C 9x
754 nanf NEW: ISO C 9x
755 nanl NEW: ISO C 9x
756 nearbyint NEW: ISO C 9x
757 nearbyintf NEW: ISO C 9x
758 nearbyintl NEW: ISO C 9x
759 netname2host NEW: Secure RPC
760 netname2user NEW: Secure RPC
761 nexttoward NEW: ISO C 9x
762 nexttowardf NEW: ISO C 9x
763 nexttowardl NEW: ISO C 9x
764 nftw NEW: Unix98
765 nftw64 NEW: LFS
766 open64 NEW: LFS
767 passwd2des NEW: Secure RPC
768 pow10 NEW: GNU ext.
769 pow10f NEW: GNU ext.
770 pow10l NEW: GNU ext.
771 pread NEW: Unix98
772 pread64 NEW: LFS
773 printf_size NEW: GNU ext.
774 printf_size_info NEW: GNU ext.
775 profil_counter REMOVED
776 pthread_mutexattr_getkind_np REPLACED
777 pthread_mutexattr_setkind_np REPLACED
778 ptsname NEW: Unix98 PTY
779 ptsname_r NEW: Unix98 PTY
780 putc_locked REMOVED
781 putchar_locked REMOVED
782 putgrent NEW: GNU ext.
783 putmsg NEW: STREAMS
784 putpmsg NEW: STREAMS
785 pututxline NEW: Unix98
786 pwrite NEW: Unix98
787 pwrite64 NEW: LFS
788 readdir64 NEW: LFS
789 readdir64_r NEW: LFS
790 remquo NEW: ISO C 9x
791 remquof NEW: ISO C 9x
792 remquol NEW: ISO C 9x
793 round NEW: ISO C 9x
794 roundf NEW: ISO C 9x
795 roundl NEW: ISO C 9x
796 rtime NEW: GNU ext.
797 scalbln NEW: ISO C 9x
798 scalblnf NEW: ISO C 9x
799 scalblnl NEW: ISO C 9x
800 scandir64 NEW: LFS
801 sendfile NEW: kernel
802 setcontext NEW: Unix98
803 setrlimit64 NEW: LFS
804 setutxent NEW: Unix98
805 sighold NEW: Unix98
806 sigignore NEW: Unix98
807 sigqueue NEW: POSIX.1b
808 sigrelse NEW: Unix98
809 sigset NEW: POSIX.1b
810 sigtimedwait NEW: POSIX.1b
811 sigwaitinfo NEW: POSIX.1b
812 sincos NEW: GNU ext.
813 sincosf NEW: GNU ext.
814 sincosl NEW: GNU ext.
815 statfs64 NEW: LFS
816 statvfs NEW: Unix98
817 statvfs64 NEW: LFS
818 strcasestr NEW: GNU ext.
819 strtoimax NEW: ISO C 9x
820 strtoumax NEW: ISO C 9x
821 strverscmp NEW: GNU ext.
822 svcauthdes_stats NEW: Secure RPC
823 svcunix_create NEW: sunrpc etx
824 svcunixfd_create NEW: sunrpc ext
825 swapcontext NEW: Unix98
826 tcgetsid NEW: Unix98 PTY
827 tdestroy NEW: GNU ext.
828 tgamma NEW: ISO C 9x
829 tgammaf NEW: ISO C 9x
830 tgammal NEW: ISO C 9x
831 tmpfile64 NEW: LFS
832 trunc NEW: ISO C 9x
833 truncate64 NEW: LFS
834 truncf NEW: ISO C 9x
835 truncl NEW: ISO C 9x
836 umount2 NEW: kernel
837 unlockpt NEW: Unix98 PTY
838 updwtmpx NEW: Unix98
839 user2netname NEW: Secure RPC
840 utmpxname NEW: Unix98
841 versionsort NEW: GNU ext.
842 versionsort64 NEW: GNU ext.
843 waitid NEW: Unix98
844 wcscasecmp NEW: GNU ext.
845 wcsncasecmp NEW: GNU ext.
846 wcsnlen NEW: GNU ext.
847 wcstoimax NEW: ISO C 9x
848 wcstoll NEW: ISO C 9x
849 wcstoull NEW: ISO C 9x
850 wcstoumax NEW: ISO C 9x
851 wcswcs NEW: Unix98
852 wordexp NEW: POSIX.2
853 wordfree NEW: POSIX.2
854 write_profiling REMOVED
855 xdecrypt NEW: Secure RPC
856 xdr_authdes_cred NEW: Secure RPC
857 xdr_authdes_verf NEW: Secure RPC
858 xdr_cryptkeyarg NEW: Secure RPC
859 xdr_cryptkeyarg2 NEW: Secure RPC
860 xdr_cryptkeyres NEW: Secure RPC
861 xdr_getcredres NEW: Secure RPC
862 xdr_key_netstarg NEW: Secure RPC
863 xdr_key_netstres NEW: Secure RPC
864 xdr_keybuf NEW: Secure RPC
865 xdr_keystatus NEW: Secure RPC
866 xdr_netnamestr NEW: Secure RPC
867 xdr_sizeof NEW: Secure RPC
868 xdr_unixcred NEW: sunrpc ext
869 xencrypt NEW: Secure RPC
870 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
871 \f
872 Version 2.0.6
874 * more bug fixes
876 \f
877 Version 2.0.5
879 * more bug fixes
881 * inet_ntoa is thread-safe
883 * updwtmp is moved from libutil to libc
885 * rewrite of cbrt function
887 * update of timezone data
888 \f
889 Version 2.0.4
891 * more bug fixes
892 \f
893 Version 2.0.3
895 * more bug fixes
896 \f
897 Version 2.0.2
899 * more bug fixes
901 * add atoll function
903 * fix complex problems in Berkeley DB code
905 * fix math functions
906 \f
907 Version 2.0.1
909 * fixed lots of header problems (especially Linux/GNU specific)
911 * dynamic loader preserves all registers
913 * Roland McGrath provided support for handling of auxiliary objects in
914 the ELF dynamic loader.
916 * support for parallel builds is improved
917 \f
918 Version 2.0
920 * GNU extensions are no longer declared by default. To enable them you
921 must define the macro `_GNU_SOURCE' in your program or compile with
922 `-D_GNU_SOURCE'.
924 * The library has changed from using GNU ld symbol aliases to using weak
925 symbols where available. The ELF object file format supports weak
926 symbols; GNU ld also supports weak symbols in the a.out format. (There
927 is also now support for other GNU ld extensions in ELF. Use the
928 `--with-elf' option to configure to indicate you have ELF, and
929 `--with-gnu-ld' if using GNU ld.) This change resulted in the deletion
930 of many files which contained only symbol aliases, reducing the size of
931 the source and the compiled library; many other files were renamed to
932 less cryptic names previously occupied by the symbol alias files.
933 There is a new header file <elf.h> for programs which operate on
934 files in the ELF format.
936 * Converted to Autoconf version 2, so `configure' has more options.
937 Run `configure --help' to see the details.
939 * The library can now be configured to build profiling, highly-optimized
940 (but undebuggable), and/or shared libraries (ELF with GNU ld only). The
941 `--enable-profile', `--enable-omitfp', and `--enable-shared' options to
942 `configure' enable building these extra libraries. The shared library is
943 built by default when using both ELF and GNU ld. When shared libraries
944 are enabled, the new library `-ldl' is available for arbitrary run-time
945 loading of shared objects; its interface is defined in <dlfcn.h>. The
946 new header file <link.h> gives access to the internals of the run-time
947 dynamic linker, `ld.so'. The shell script `ldd' is similar to the
948 application of same name on other systems and it provides information
949 about dynamically linked binaries.
951 * The C library now provides the run-time support code for profiling
952 executables compiled with `-pg'. Programs can control the profiling code
953 through the interface in <sys/gmon.h>. The `gmon.out' files written by
954 the GNU C library can be read only by GNU `gprof' (from GNU binutils);
955 the support for this file format was contributed by David Mosberger-Tang.
957 * The math code has been replaced with a math library based on fdlibm from
958 Sun, and modified by JT Conklin and Ulrich Drepper with i387 support, by
959 Ian Taylor with `float' functions and by Ulrich Drepper with `long double'
960 functions. The math functions now reside in a separate library, so
961 programs using them will need to use `-lm' their linking commands.
963 * John C. Bowman contributed optimized ix87 assembler inline functions.
965 * Ulrich Drepper has contributed support for an `/etc/nsswitch.conf'
966 mechanism similar to that found in Solaris 2. This is now used for the
967 group, passwd, hosts, networks, services, protocols, rpc, ethers,
968 shadow, netgroup, publickey, and alias databases. The `nsswitch.conf'
969 file controls what services are used for each individual database. This
970 works by loading shared libraries with names specified in `nsswitch.conf',
971 so service modules can be changed or added at any time without even
972 relinking any program. Currently there are the file, db, and NIS based
973 NSS services available.
975 * The new functions `strtoq' and `strtouq' parse integer values from
976 strings, like `strtol' and `strtoul', but they return `long long int' and
977 `unsigned long long int' values, respectively (64-bit quantities).
979 * The new functions `strtof' and `strtold' parse floating-point values from
980 strings, like `strtod', but they return `float' and `long double' values,
981 respectively (on some machines `double' and `long double' are the same).
983 * Ulrich Drepper has contributed new implementations of the floating-point
984 printing and reading code used in the `printf' family of functions and
985 `strtod', `strtof', and `strtold'. These new functions are perfectly
986 accurate, and much faster than the old ones.
988 * The implementation of the POSIX locale model was completely rewritten by
989 Ulrich Drepper. This includes the new programs `localedef' and `locale'
990 to compile the POSIX locale definition.
992 * The former dummy implementations of the strcoll and strxfrm function are
993 now replaced by fully functional code contributed by Ulrich Drepper. The
994 collation information comes from the POSIX locale definitions.
996 * The new header <langinfo.h> defines an interface for accessing
997 various locale-dependent data (using the locale chosen with `setlocale').
999 * Ulrich Drepper has contributed a new suite of functions for operation on
1000 wide-character and multibyte-character strings, in <wchar.h>;
1001 and classification and case conversion of wide characters, in <wctype.h>.
1002 These new functions are conforming to the ISO C, Amendement 1 specification.
1004 * There is now a second implementation of the standard I/O library available.
1005 It comes from GNU libg++ as was written by Per Bothner, heavily modified
1006 by Hongjiu Lu and made thread safe by Ulrich Drepper.
1008 * You can now use positional parameter specifications in format strings
1009 for the `printf' and `scanf' families of functions. For example,
1010 `printf ("Number %2$d, Mr %1$s\n", "Jones", 6);'' prints
1011 ``Number 6, Mr Jones''. This is mainly useful when providing different
1012 format strings for different languages, whose grammars may dictate
1013 different orderings of the values being printed. To support this
1014 feature, the interface for `register_printf_handler' has changed; see
1015 the header file <printf.h> for details.
1017 * The `printf' and `scanf' families of functions now understand a new
1018 formatting flag for numeric conversions: the ' flag (e.g. %'d or %'f) says
1019 to group numbers as indicated by the locale; for `scanf' and friends, this
1020 says to accept as valid only a number with all the proper grouping
1021 separators in the right places. In the default "C" locale, numbers are
1022 not grouped; but locales for specific countries will define the usual
1023 conventions (i.e. separate thousands with `,' in the US locale).
1025 * The pgrp functions have been regularized, slightly incompatibly but much
1026 less confusingly. The core functions are now `getpgid' and `setpgid',
1027 which take arguments for the PID to operate on; the POSIX.1 `getpgrp' (no
1028 argument) and BSD `setpgrp' (identical to `setpgid') functions are
1029 provided for compatibility. There is no longer an incompatible `getpgrp'
1030 with an argument declared under _BSD_SOURCE; no BSD code uses it.
1032 * The new header file <fts.h> and suite of functions simplify programs that
1033 operate on directory trees. This code comes from 4.4 BSD.
1035 * The resolver code has been updated from the BIND 4.9.5-P1 release.
1036 Parts of the code were heavily modified by Ulrich Drepper to fit in the
1037 NSS scheme used in glibc.
1039 * There is a new malloc debugging hook `__memalign_hook'.
1041 * There are new typedefs `ushort' for `unsigned short int' and `uint' for
1042 `unsigned int' in <sys/types.h>. These are for compatibility only and
1043 their use is discouraged.
1045 * The `-lmcheck' library to enable standard malloc debugging hooks is now
1046 done differently, so that it works even without GNU ld.
1048 * New function `euidaccess' checks allowed access to a file like `access',
1049 but using the effective IDs instead of the real IDs.
1051 * The time zone data files have been updated for the latest and greatest
1052 local time conventions of the countries of the world.
1054 * The new function `dirfd' extracts the file descriptor used by a DIR stream;
1055 see <dirent.h>.
1057 * The new functions `ecvt', `fcvt', and `gcvt' provide an obsolete interface
1058 for formatting floating-point numbers. They are provided only for
1059 compatibility; new programs should use `sprintf' instead. There are
1060 also equivalent function for the `long double' floating-point type and
1061 all functions also exist in a reentrant form.
1063 * The new auxiliary library `-lutil' from 4.4 BSD contains various
1064 functions for maintaining the login-record files (primarily of use to
1065 system programs such as `login'), and convenient functions for
1066 allocating and initializing a pseudo-terminal (pty) device.
1068 * Ulrich Drepper has contributed new support for System V style
1069 shared memory and IPC on systems that support it.
1071 * Ulrich Drepper has contributed several miscellaneous new functions found
1072 in System V: The `hsearch' family of functions provide an effective
1073 implementation of hash tables; `a64l' and `l64a' provide a very simple
1074 binary to ASCII mapping; `drand48' and friends provide a 48-bit random
1075 number generator.
1077 * Ulrich Drepper has contributed new reentrant counterparts for the
1078 `random' and `hsearch' families of functions; `random_r', `hsearch_r', etc.
1080 * Ulrich Drepper has contributed new, highly-optimized versions of several
1081 string functions for the i486/Pentium family of processors.
1083 * Ulrich Drepper has updated the Linux-specific code, based largely
1084 on work done in Hongjiu Lu's version of GNU libc for Linux.
1085 The GNU library now supports Linux versions 2.0.10 and later,
1086 using the ELF object file format (i[3456]86-*-linux).
1088 * Andreas Schwab has ported the C library to Linux/m68k (m68k-*-linux).
1090 * David Mosberger-Tang and Richard Henderson have ported the C library
1091 to Linux/Alpha (alpha-*-linux). Richard Henderson contributed the
1092 dynamic linking support for ELF/Alpha.
1094 * Richard Henderson contributed several Alpha optimized assembler function
1095 for arithmetic and string handling.
1097 * Ulrich Drepper has contributed a new set of message catalog functions to
1098 support multiple languages using the <libintl.h> interface, for use with
1099 his new package GNU gettext. Translation volunteers have contributed
1100 catalogs of the library's messages in Spanish, German, and Korean.
1102 * For compatibility with XPG4, Ulrich Drepper has contributed the `gencat'
1103 program and the `catgets' function for reading the catalog files it
1104 creates. (The <libintl.h> interface is preferred; we include the
1105 <nl_types.h> interface using `catgets' only for source compatibility with
1106 programs already written to use it.)
1108 * New header file <values.h> gives SVID-compatible names for <limits.h>
1109 constants.
1111 * Various new macros, declarations, and small header files for compatibility
1112 with 4.4 BSD.
1114 * New function `group_member' is a convenient way to check if a process has
1115 a given effective group ID.
1117 * When using GCC 2.7 and later, the socket functions are now declared in a
1118 special way so that passing an argument of type `struct sockaddr_in *',
1119 `struct sockaddr_ns *', or `struct sockaddr_un *' instead of the generic
1120 `struct sockaddr *' type, does not generate a type-clash warning.
1122 * New function `error' declared in header file <error.h> is a convenient
1123 function for printing error messages and optionally exiting; this is the
1124 canonical function used in GNU programs. The new functions `err', `warn',
1125 and friends in header file <err.h> are the canonical 4.4 BSD interface for
1126 doing the same thing.
1128 * The <glob.h> interface has several new flags from 4.4 BSD that extend the
1129 POSIX.2 `glob' function to do ~ and {...} expansion.
1131 * New function `unsetenv' complements `setenv' for compatibility with 4.4 BSD.
1132 `clearenv' which is used in POSIX.9 is also available.
1134 * New function `getsid' returns session ID number on systems that support it.
1136 * We have incorporated the 4.4 BSD `db' library (version 1.85). New header
1137 files <db.h> and <mpool.h> provide a rich set of functions for several
1138 types of simple databases stored in memory and in files, and <ndbm.h> is
1139 an old `ndbm'-compatible interface using the `db' functions. Link with
1140 `-ldb' to get these functions.
1142 * New macro `strdupa' copies a string like `strdup', but uses local stack
1143 space from `alloca' instead of dynamic heap space from `malloc'.
1145 * New function `strnlen' is like `strlen' but searches only a given maximum
1146 number of characters for the null terminator. `stpncpy', `strndup' and
1147 `strndupa' are similar variants for the `stpcpy', `strdup' and `strdupa'
1148 function.
1150 * New function `statfs' in header <sys/statfs.h>.
1152 * The new <argz.h> and <envz.h> interfaces contributed by Miles Bader
1153 provide convenient functions for operating on blocks of null-terminated
1154 strings.
1156 * A new suite of functions in <utmp.h> handle all the details of reading
1157 and writing the utmp file.
1159 * An implementation of the NIS/YP(tm) based NSS service was contributed by
1160 Thorsten Kukuk.
1162 * Paul Eggert and Ulrich Drepper modified the `strftime' function to be
1163 completely POSIX compliant and also implemented the extended functionality
1164 to handle alternate digit representation and alternate era date formats.
1166 * Ulrich Drepper provided an implementation of the `strptime' function
1167 defined in XPG4.2 which transforms a string into a `struct tm' value.
1169 * Paul Eggert provided the tzselect shell script as part of the timezone
1170 code. The shell script makes it easy to select the correct timezone
1171 specification.
1173 * The implementation of the malloc family of functions is completely replaced
1174 by a new implementation by Doug Lea with many improvements by Wolfram Gloger.
1175 The implementation uses the mmap function (if available) and it is
1176 optimized for the use in multi threaded programs.
1178 * Ulrich Drepper contributed a MD5 "encryption" for the crypt family of
1179 functions. This new functionality is usable by specifying a special
1180 salt string and it is compatible with implementation on *BSD systems.
1182 * Lots of functions from the XPG4.2 standard were added by Ulrich Drepper:
1183 `getsubopt' to handle second level command line options, `bsd_signal'
1184 to access BSD style `signal' functionality, the obsolete `regexp' style
1185 expression matcher.
1187 * the `lchown' function is available on system which support this
1188 functionality.
1190 * The implementation of the shadow password handling function was contributed
1191 by Ulrich Drepper.
1193 * David Mosberger-Tang changed the SunRPC implementation to be 64bit safe.
1195 * POSIX.1g support was added. The <sys/select.h> header is available,
1196 `isfdtype' and `pselect' are implemented. Craig Metz contributed an
1197 implementation of `getaddrinfo'.
1198 \f
1199 Version 1.09
1201 * For cross-compilation you should now set `BUILD_CC' instead of `HOST_CC'.
1203 * New header file <fstab.h> and new functions `getfsspec', `getfsent' and
1204 friends, for parsing /etc/fstab. This code comes from 4.4 BSD.
1206 * The new function `daemon' from 4.4 BSD is useful for server programs that
1207 want to put themselves in the background.
1209 * Joel Sherrill has contributed support for several standalone boards that
1210 run without an operating system.
1212 * `printf', `scanf' and friends now accept a `q' type modifier for long
1213 long int as well as `ll'. Formats using these might be `%qu' or `%lld'.
1215 * All of the code taken from BSD (notably most of the math and networking
1216 routines) has been updated from the BSD 4.4-Lite release.
1218 * The resolver code has been updated from the BIND-4.9.3-BETA9 release.
1220 * The new functions `getdomainname' and `setdomainname' fetch or change the
1221 YP/NIS domain name. These are system calls which exist on systems which
1222 have YP (aka NIS).
1224 * The time zone data files have been updated for the latest international
1225 conventions.
1227 * The SunRPC programs `portmap' and `rpcinfo' are now installed in
1228 $(sbindir) (usually /usr/local/sbin) instead of $(bindir).
1229 \f
1230 Version 1.08
1232 * The C library now includes support for Sun RPC, from Sun's free
1233 RPCSRC-4.0 distribution. The `portmap', `rpcinfo', and `rpcgen' programs
1234 are included. (There is still no support for YP.)
1236 * Tom Quinn has contributed a port of the C library to SGI machines running
1237 Irix 4 (mips-sgi-irix4).
1239 * The new `lockf' function is a simplified interface to the locking
1240 facilities of `fcntl', included for compatibility.
1242 * New time functions `timegm', `timelocal', and `dysize' for compatibility.
1244 * New header file <sys/timeb.h> and new function `ftime' for compatibility.
1246 * New header files <poll.h> and <sys/poll.h> and new function `poll' for
1247 compatibility.
1249 * The error message printed by `assert' for a failed assertion now includes
1250 the name of the program (if using GNU ld) and the name of the calling
1251 function (with versions of GCC that support this).
1253 * The `psignal' function is now declared in <signal.h>, not <stdio.h>.
1255 * The library now includes the <sys/mman.h> header file and memory
1256 management functions `mmap', `munmap', `mprotect', `msync', and
1257 `madvise', on systems that support those facilities.
1259 * The interface for `mcheck' has changed slightly: the function called to
1260 abort the program when an allocation inconsistency is detected now takes
1261 an argument that indicates the type of failure. The new function
1262 `mprobe' lets you request a consistency check for a particular block at
1263 any time (checks are normally done only when you call `free' or `realloc'
1264 on a block).
1266 * It is now possible to easily cross-compile the C library, building on one
1267 system a library to run on another machine and/or operating system. All
1268 you need to do is set the variable `HOST_CC' in `configparms' to the
1269 native compiler for programs to run on the machine you are building on (a
1270 few generator programs are used on Unix systems); set `CC' to the
1271 cross-compiler.
1273 * The new function `fexecve' (only implemented on the GNU system) executes
1274 a program file given a file descriptor already open on the file.
1275 \f
1276 Version 1.07
1278 * Brendan Kehoe has contributed most of a port to the DEC Alpha
1279 running OSF/1 (alpha-dec-osf1). He says it is 75% complete.
1281 * You can set the variable `libprefix' in `configparms' to specify a prefix
1282 to be prepended to installed library files; this makes it easy to install
1283 the GNU C library to be linked as `-lgnuc' or whatever.
1285 * The new `stpncpy' is a cross between `stpcpy' and `strncpy': It
1286 copies a limited number of characters from a string, and returns the
1287 address of the last character written.
1289 * You no longer need to check for whether the installed `stddef.h' is
1290 compatible with the GNU C library. configure now checks for you.
1292 * You can now define a per-stream `fileno' function to convert the
1293 stream's cookie into an integral file descriptor.
1295 * ``malloc (0)'' no longer returns a null pointer. Instead, it
1296 allocates zero bytes of storage, and returns a unique pointer which
1297 you can pass to `realloc' or `free'. The behavior is undefined if
1298 you dereference this pointer.
1300 * The C library now runs on Sony NEWS m68k machines running either
1301 NewsOS 3 or NewsOS 4.
1303 * The new `syscall' function is a system-dependent primitive function
1304 for invoking system calls. It has the canonical behavior on Unix
1305 systems, including unreliable return values for some calls (such as
1306 `pipe', `fork' and `getppid').
1308 * The error code `EWOULDBLOCK' is now obsolete; it is always defined
1309 to `EAGAIN', which is the preferred name. On systems whose kernels
1310 use two distinct codes, the C library now translates EWOULDBLOCK to
1311 EAGAIN in every system call function.
1312 \f
1313 Version 1.06
1315 * The GNU C Library Reference Manual is now distributed with the library.
1316 `make dvi' will produce a DVI file of the printed manual.
1317 `make info' will produce Info files that you can read on line using C-h i
1318 in Emacs or the `info' program.
1319 Please send comments on the manual to bug-glibc-manual@gnu.org.
1321 * The library now supports SVR4 on i386s (i386-unknown-sysv4).
1323 * Brendan Kehoe has contributed a port to Sun SPARCs running Solaris 2.
1325 * Jason Merrill has contributed a port to the Sequent Symmetry running
1326 Dynix version 3 (i386-sequent-dynix).
1328 * The library has been ported to i386s running SCO 3.2.4 (also known as SCO
1329 ODT 2.0; i386-unknown-sco3.2.4) or SCO 3.2 (i386-unknown-sco3.2).
1331 * New function `memory_warnings' lets you arrange to get warnings when
1332 malloc is running out of memory to allocate, like Emacs gives you.
1334 * The C library now contains the relocating allocator used in Emacs 19 for
1335 its editing buffers. This allocator (ralloc) minimizes allocation
1336 overhead and fragmentation by moving allocated regions around whenever it
1337 needs to. You always refer to a ralloc'd region with a "handle" (a
1338 pointer to a pointer--an object of type `void **').
1340 * There is a new `printf' format: `%m' gives you the string corresponding
1341 to the error code in `errno'.
1343 * In `scanf' formats, you can now use `%as' or `%a[' to do the normal `%s'
1344 or `%[' conversion, but instead of filling in a fixed-sized buffer you
1345 pass, the `a' modifier says to fill in a `char **' you pass with a
1346 malloc'd string.
1348 * The `fnmatch' function supports the new flag bits `FNM_LEADING_DIR' and
1349 `FNM_CASEFOLD'. `FNM_LEADING_DIR' lets a pattern like `foo*' match a
1350 name like `foo/bar'. `FNM_CASEFOLD' says to ignore case in matching.
1352 * `mkstemp' is a traditional Unix function to atomically create and open a
1353 uniquely-named temporary file.
1354 \f
1355 Version 1.05
1357 * The standard location for the file that says what the local timezone is
1358 has changed again. It is now `/usr/local/etc/localtime' (or more
1359 precisely, `${prefix}/etc/localtime') rather than `/etc/localtime'.
1361 * The distribution no longer contains any files with names longer than 14
1362 characters.
1364 * `struct ttyent' has two new flag bits: TTY_TRUSTED and TTY_CONSOLE.
1365 These are set by the new `trusted' and `console' keywords in `/etc/ttys'.
1367 * New functions `ttyslot' and `syslog' from 4.4 BSD.
1368 \f
1369 Version 1.04
1371 * The configuration process has changed quite a bit. The `configure'
1372 script is now used just like the configuration scripts for other GNU
1373 packages. The `sysdeps' directory hierarchy is much rearranged.
1374 The file `INSTALL' explains the new scheme in detail.
1376 * The header files no longer need to be processed into ANSI C and
1377 traditional C versions. There is just one set of files to install, and
1378 it will work with ANSI or old C compilers (including `gcc -traditional').
1380 * Brendan Kehoe and Ian Lance Taylor have ported the library to the
1381 MIPS DECStation running Ultrix 4.
1383 * The Sun 4 startup code (crt0) can now properly load SunOS 4 shared libraries.
1384 Tom Quinn contributed the initial code. The GNU C library can NOT yet be
1385 made itself into a shared library.
1387 * Yet further improved support for the i386, running 4.3 BSD-like systems
1388 (such as Mach 3 with the Unix single-server), or System V.
1390 * New function `strncasecmp' to do case-insensitive string comparison
1391 with limited length.
1393 * New function `strsep' is a reentrant alternative to `strtok'.
1395 * New functions `scandir' and `alphasort' for searching directories.
1397 * New function `setenv' is a better interface to `putenv'.
1399 * Ian Lance Taylor has contributed an implementation of the SVID `ftw'
1400 function for traversing a directory tree.
1402 * The GNU obstack package is now also part of the C library.
1403 The new function `open_obstack_stream' creates a stdio stream that
1404 writes onto an obstack; `obstack_printf' and `obstack_vprintf' do
1405 formatted output directly to an obstack.
1407 * Miscellaneous new functions: reboot, nice, sigaltstack (4.4 BSD only),
1408 cfmakeraw, getusershell, getpass, swab, getttyent, seteuid, setegid.
1410 * `FNM_FILE_NAME' is another name for `FNM_PATHNAME', used with `fnmatch'.
1412 * The new functions `strfry' and `memfrob' do mysterious and wonderful
1413 things to your strings.
1415 * There are some new test programs: test-fseek, testmb, and testrand.
1417 * Some work has been done to begin porting the library to 4.4 BSD and Linux.
1418 These ports are not finished, but are a good starting place for really
1419 supporting those systems.
1421 * `/etc/localtime' is now the standard location for the file that says what
1422 the local timezone is, rather than `/usr/local/lib/zoneinfo/localtime'.
1423 This follows the general principle that `/etc' is the place for all local
1424 configuration files.
1426 * The C library header files now use `extern "C"' when used by the C++
1427 compiler, so the C library should now work with C++ code.
1429 * The header file <bstring.h> is gone. <string.h> now declares bcopy,
1430 bcmp, bzero, and ffs. (Update: nowadays these functions are declared
1431 in <strings.h>.)
1433 * Mike Haertel (of GNU e?grep and malloc fame) has written a new sorting
1434 function which uses the `merge sort' algorithm, and is said to be
1435 significantly faster than the old GNU `qsort' function. Merge sort is
1436 now the standard `qsort' function. The new algorithm can require a lot
1437 of temporary storage; so, the old sorting function is called when the
1438 required storage is not available.
1440 * The C library now includes Michael Glad's Ultra Fast Crypt, which
1441 provides the Unix `crypt' function, plus some other entry points.
1443 * The code and header files taken from 4.4 BSD have been updated with the
1444 latest files released from Berkeley.
1445 \f
1446 ----------------------------------------------------------------------
1447 Copyright information:
1449 Copyright (C) 1992-1999,2000,2001,2002 Free Software Foundation, Inc.
1451 Permission is granted to anyone to make or distribute verbatim copies
1452 of this document as received, in any medium, provided that the
1453 copyright notice and this permission notice are preserved,
1454 thus giving the recipient permission to redistribute in turn.
1456 Permission is granted to distribute modified versions
1457 of this document, or of portions of it,
1458 under the above conditions, provided also that they
1459 carry prominent notices stating who last changed them.
1460 \f
1461 Local variables:
1462 version-control: never
1463 End: