1116 lines
40 KiB
Plaintext
1116 lines
40 KiB
Plaintext
GNU C Library NEWS -- history of user-visible changes. 2000-05-28
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Copyright (C) 1992-1999, 2000 Free Software Foundation, Inc.
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See the end for copying conditions.
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Please send GNU C library bug reports using the `glibcbug' script to
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<bugs@gnu.org>. Questions and suggestions should be send to
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<bug-glibc@gnu.org>.
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Version 2.2
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* Thorsten Kukuk added secure mode support to nscd.
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* The Berkeley db libraries have been removed.
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* Wide character I/O streams implemented by Ulrich Drepper.
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* Functions from the extended socket API added by Ulrich Drepper.
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* Functions feenableexcept and fedisableexcept to control the
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behaviour of individual exceptions have been added by Andreas Jaeger.
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* ldconfig program added by Andreas Jaeger and Jakub Jelinek.
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* The resolver code has been updated from bind 8.2.2-5 which supports
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threads. The integration was done by Andreas Jaeger and Adam D. Bradley.
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This change could in some situations effect backward compatibility. Since
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now `_res' is a thread-local instead of a global variable, modifying it
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in one thread does not have any effect in other threads.
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* Compatibility code for K&R C compilers has been removed from the
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header files. A ISO C compiler is needed to use the library
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(conforming to either C89 or C99 standard).
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* Complete rewrite of the localedef program to support multibyte character
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sets. Implement handling of ISO 14651 and ISO 14652. Rewrite strcoll,
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strxfrm, wcscoll, and wcsxfrm functions. Make isw*() functions work.
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Implemented by Ulrich Drepper.
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* Plural handling in gettext implemented by Ulrich Drepper.
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* The utmp daemon has been removed.
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* The port to MIPS-Linux has been finished by Andreas Jaeger.
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* A port to Hitachi SH3 and SH4 has been contributed by Kazumoto Kojima
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and Yutaka Niibe.
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* POSIX clocks and timers implemented by Kaz Kylheku and Ulrich Drepper.
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* POSIX spawn function family implemented by Ulrich Drepper.
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* POSIX spinlocks are now available.
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Version 2.1.3
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* bug fixes
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Version 2.1.2
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* bug fixes
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Version 2.1.1
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* New ISO C 9x function _Exit, imaxabs, and imaxdiv are added.
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* New xdr functions are added; some rpc functions are now 64bit clean.
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* Fixed a number of bugs and memory leaks (especially in NIS+ code).
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* Fixed known incompatibilities with glibc 2.0.
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* New functions lock64, strchrnul, rawmemchr, getutmp and getutmpx.
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* Optimized a number of functions (especially the ELF dynamic loader).
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* Update timezone data files.
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* lots of charmaps corrections
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* some new locale definitions and charmaps
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Version 2.1
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* Richard Henderson corrected size of struct timeval on Linux/Alpha to
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conform to POSIX member type requirements. Symbol versions have been
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adjusted as needed within the library, and for direct use by applications,
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but there is potential for problems if third-party libraries use
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struct timeval as part of their interface. This does not present
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a problem for X and other "essential" system libraries.
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* An additional locale model to support C++ Standard Library locale
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model and probably more was implemented by Ulrich Drepper.
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* Eric Youngdale and Ulrich Drepper implemented versioning of objects on
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symbol level.
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* Miles Bader provided the `argp' function family to support hierachical
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command line argument parsing, layered on top of getopt.
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* strtod accepts new hexadecimal floating-point format from ISO C 9X.
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* printf has two new specifiers %a and %A to print hexadecimal flaoting-point
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numbers.
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* scanf recognizes the %a and %A format for scanning floating point numbers.
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* the new headers <stdint.h> and <inttypes.h> from ISO C 9X provides
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information and interfaces for the available integer types.
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* about 130 new math functions were added to implement the ISO C9x math
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library.
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* the new header <complex.h> contains definitions of the complex math
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functions from ISO C 9X.
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* the new header <tgmath.h> defines generic macros to use complex or
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real valued functions.
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* Thorsten Kukuk provided an implementation for NIS+, securelevel 0, 1 and 2.
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* Andreas Jaeger provided a test suite for the math library.
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* Mark Kettenis implemented the utmpx interface and an utmp daemon.
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* Ulrich Drepper added character set conversion functions (iconv).
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* Optimized string functions have been added.
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* The localedata addon is now part of glibc.
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* An implementation of profiling shared libraries was added by Ulrich Drepper.
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* Thorsten Kukuk and Ulrich Drepper provided an implementation for a caching
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daemon for NSS (nscd).
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Missing a better place here are some numbers on improvements. Under
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Linux 2.1.125 un-tar-ing the kernel sources takes
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user system wall
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using local files 12.19s 6.88s 22.91s
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using NIS 13.92s 8.91s 26.34s
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using NIS & nscd 10.37s 7.34s 25.30s
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using NIS+ 27.57s 30.37s 640.46s
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using NIS+ & nscd 10.25s 7.83s 26.51s
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using NIS & old nscd [1] 13.83s 8.32s 29.60s
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Keep in mind that non-namelookup related operations dominate above times.
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It was just a common complain that using NIS+ unpacking the kernel is
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horribly slow.
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[1] The old nscd implementation is not available anymore since it was
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distributed with glibc up to version 2.0.98 and thus is now replaced.
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* Tim Waugh provided an implementation of the POSIX.2 wordexp function family.
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* Mark Kettenis provided a Hesiod NSS module.
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* The ELF dynamic loader knows how to process dynamic string tokens ($ORIGIN
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and $PLATFORM) in RPATHs and similar strings (Ulrich Drepper).
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* rcmd can now handle netgroups (Dick Streefland).
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* A port to the ARM was contributed by Phil Blundell, Pat Beirne and Scott
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Bambrough.
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* Support for the IPv6 protocol has been added to the socket API, as per the
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latest draft standards.
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* Support for Linux 2.2 has been added.
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* Interface changes relative to the latest 2.0.x release:
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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addseverity NEW: Unix98
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alphasort64 NEW: LFS
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argp_err_exit_status NEW: argp, GNU ext
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argp_error NEW: argp, GNU ext
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argp_failure NEW: argp, GNU ext
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argp_help NEW: argp, GNU ext
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argp_parse NEW: argp, GNU ext
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argp_program_bug_address NEW: argp, GNU ext
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argp_program_version NEW: argp, GNU ext
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argp_program_version_hook NEW: argp, GNU ext
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argp_state_help NEW: argp, GNU ext
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argp_usage NEW: argp, GNU ext
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authdes_create NEW: Secure RPC
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authdes_getucred NEW: Secure RPC
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authdes_pk_create NEW: Secure RPC
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backtrace NEW: GNU ext.
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backtrace_symbols NEW: GNU ext.
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backtrace_symbols_fd NEW: GNU ext.
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cacos NEW: ISO C 9x
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cacosf NEW: ISO C 9x
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cacosh NEW: ISO C 9x
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cacoshf NEW: ISO C 9x
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cacoshl NEW: ISO C 9x
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cacosl NEW: ISO C 9x
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capget NEW: kernel
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capset NEW: kernel
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carg NEW: ISO C 9x
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cargf NEW: ISO C 9x
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cargl NEW: ISO C 9x
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casin NEW: ISO C 9x
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casinf NEW: ISO C 9x
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casinh NEW: ISO C 9x
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casinhf NEW: ISO C 9x
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casinhl NEW: ISO C 9x
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casinl NEW: ISO C 9x
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catan NEW: ISO C 9x
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catanf NEW: ISO C 9x
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catanh NEW: ISO C 9x
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catanhf NEW: ISO C 9x
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catanhl NEW: ISO C 9x
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catanl NEW: ISO C 9x
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cbc_crypt NEW: Secure RPC
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ccos NEW: ISO C 9x
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ccosf NEW: ISO C 9x
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ccosh NEW: ISO C 9x
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ccoshf NEW: ISO C 9x
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ccoshl NEW: ISO C 9x
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ccosl NEW: ISO C 9x
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cexp NEW: ISO C 9x
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cexpf NEW: ISO C 9x
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cexpl NEW: ISO C 9x
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cimag NEW: ISO C 9x
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cimagf NEW: ISO C 9x
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cimagl NEW: ISO C 9x
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clearerr_locked REMOVED
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clntunix_create NEW: sunrpc ext
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clog NEW: ISO C 9x
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clog10 NEW: ISO C 9x
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clog10f NEW: ISO C 9x
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clog10l NEW: ISO C 9x
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clogf NEW: ISO C 9x
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clogl NEW: ISO C 9x
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conj NEW: ISO C 9x
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conjf NEW: ISO C 9x
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conjl NEW: ISO C 9x
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cpow NEW: ISO C 9x
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cpowf NEW: ISO C 9x
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cpowl NEW: ISO C 9x
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cproj NEW: ISO C 9x
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cprojf NEW: ISO C 9x
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cprojl NEW: ISO C 9x
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creal NEW: ISO C 9x
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crealf NEW: ISO C 9x
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creall NEW: ISO C 9x
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creat64 NEW: LFS
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csin NEW: ISO C 9x
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csinf NEW: ISO C 9x
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csinh NEW: ISO C 9x
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csinhf NEW: ISO C 9x
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csinhl NEW: ISO C 9x
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csinl NEW: ISO C 9x
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csqrt NEW: ISO C 9x
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csqrtf NEW: ISO C 9x
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csqrtl NEW: ISO C 9x
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ctan NEW: ISO C 9x
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ctanf NEW: ISO C 9x
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ctanh NEW: ISO C 9x
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ctanhf NEW: ISO C 9x
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ctanhl NEW: ISO C 9x
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ctanl NEW: ISO C 9x
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des_setparity NEW: Secure RPC
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ecb_crypt NEW: Secure RPC
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endutxent NEW: Unix98
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exp10 NEW: ISO C 9x
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exp10f NEW: ISO C 9x
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exp10l NEW: ISO C 9x
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exp2 NEW: ISO C 9x
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exp2f NEW: ISO C 9x
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exp2l NEW: ISO C 9x
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fattach NEW: STREAMS
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fdetach NEW: STREAMS
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fdim NEW: ISO C 9x
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fdimf NEW: ISO C 9x
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fdiml NEW: ISO C 9x
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feclearexcept NEW: ISO C 9x
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||
fegetenv NEW: ISO C 9x
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fegetexceptflag NEW: ISO C 9x
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fegetround NEW: ISO C 9x
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feholdexcept NEW: ISO C 9x
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feof_locked REMOVED
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feraiseexcept NEW: ISO C 9x
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ferror_locked REMOVED
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fesetenv NEW: ISO C 9x
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fesetexceptflag NEW: ISO C 9x
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fesetround NEW: ISO C 9x
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fetestexcept NEW: ISO C 9x
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feupdateenv NEW: ISO C 9x
|
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fflush_locked REMOVED
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ffsl NEW: GNU ext.
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||
ffsll NEW: GNU ext.
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fgetpos64 NEW: LFS
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fgets_unlocked NEW: GNU ext.
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||
fileno_locked REMOVED
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||
fma NEW: ISO C 9x
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||
fmaf NEW: ISO C 9x
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fmal NEW: ISO C 9x
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fmax NEW: ISO C 9x
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||
fmaxf NEW: ISO C 9x
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fmaxl NEW: ISO C 9x
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fmin NEW: ISO C 9x
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fminf NEW: ISO C 9x
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fminl NEW: ISO C 9x
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fmtmsg NEW: Unix98
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fopen64 NEW: LFS
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fputc_locked REMOVED
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fputs_unlocked NEW: GNU ext.
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||
fread_unlocked NEW: GNU ext.
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freopen64 NEW: LFS
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fseeko NEW: Unix98
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fsetpos64 NEW: LFS
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||
fstatfs64 NEW: LFS
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||
fstatvfs NEW: Unix98
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||
fstatvfs64 NEW: LFS
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ftello NEW: Unix98
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ftello64 NEW: LFS
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||
ftruncate64 NEW: LFS
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||
ftw64 NEW: LFS
|
||
fwrite_unlocked NEW: GNU ext.
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||
gai_strerror NEW: IPv6
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||
gamma_r REMOVED
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||
gammaf_r REMOVED
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||
gammal_r REMOVED
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||
getchar_locked REMOVED
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getdate NEW: Unix98
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getdate_err NEW: Unix98
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getdate_r NEW: GNU ext.
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getmsg NEW: STREAMS
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getnameinfo NEW: IPv6
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getnetname NEW: Secure RPC
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getpmsg NEW: STREAMS
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getpt NEW: Unix98 PTY
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getrlimit64 NEW: LFS
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getutxent NEW: Unix98
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||
getutxid NEW: Unix98
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||
getutxline NEW: Unix98
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glob64 NEW: GNU ext.
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globfree64 NEW: GNU ext.
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||
gnu_get_libc_release NEW: GNU ext.
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||
gnu_get_libc_version NEW: GNU ext.
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||
grantpt NEW: Unix98 PTY
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||
host2netname NEW: Secure RPC
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iconv NEW: iconv
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iconv_close NEW: iconv
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||
iconv_open NEW: iconv
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||
if_freenameindex NEW: IPv6
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||
if_indextoname NEW: IPv6
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if_nameindex NEW: IPv6
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if_nametoindex NEW: IPv6
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||
in6addr_any NEW: IPv6
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in6addr_loopback NEW: IPv6
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inet6_isipv4mapped NEW: IPv6
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||
isastream NEW: STREAMS
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iswblank NEW: GNU ext.
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key_decryptsession NEW: Secure RPC
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key_decryptsession_pk NEW: Secure RPC
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key_encryptsession NEW: Secure RPC
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key_encryptsession_pk NEW: Secure RPC
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key_gendes NEW: Secure RPC
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key_get_conv NEW: Secure RPC
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||
key_secretkey_is_set NEW: Secure RPC
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key_setnet NEW: Secure RPC
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||
key_setsecret NEW: Secure RPC
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||
llrint NEW: ISO C 9x
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llrintf NEW: ISO C 9x
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||
llrintl NEW: ISO C 9x
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||
llround NEW: ISO C 9x
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||
llroundf NEW: ISO C 9x
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llroundl NEW: ISO C 9x
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log2 NEW: ISO C 9x
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log2f NEW: ISO C 9x
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log2l NEW: ISO C 9x
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lrint NEW: ISO C 9x
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lrintf NEW: ISO C 9x
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||
lrintl NEW: ISO C 9x
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lround NEW: ISO C 9x
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lroundf NEW: ISO C 9x
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lroundl NEW: ISO C 9x
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lseek64 NEW: LFS
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||
makecontext NEW: Unix98
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||
mempcpy NEW: GNU ext.
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mmap64 NEW: LFS
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||
moncontrol REMOVED
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||
modify_ldt NEW: kernel
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||
nan NEW: ISO C 9x
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||
nanf NEW: ISO C 9x
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||
nanl NEW: ISO C 9x
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||
nearbyint NEW: ISO C 9x
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||
nearbyintf NEW: ISO C 9x
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||
nearbyintl NEW: ISO C 9x
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||
netname2host NEW: Secure RPC
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||
netname2user NEW: Secure RPC
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||
nexttoward NEW: ISO C 9x
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||
nexttowardf NEW: ISO C 9x
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||
nexttowardl NEW: ISO C 9x
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||
nftw NEW: Unix98
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||
nftw64 NEW: LFS
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||
open64 NEW: LFS
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||
passwd2des NEW: Secure RPC
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||
pow10 NEW: GNU ext.
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||
pow10f NEW: GNU ext.
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||
pow10l NEW: GNU ext.
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||
pread NEW: Unix98
|
||
pread64 NEW: LFS
|
||
printf_size NEW: GNU ext.
|
||
printf_size_info NEW: GNU ext.
|
||
profil_counter REMOVED
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||
pthread_mutexattr_getkind_np REPLACED
|
||
pthread_mutexattr_setkind_np REPLACED
|
||
ptsname NEW: Unix98 PTY
|
||
ptsname_r NEW: Unix98 PTY
|
||
putc_locked REMOVED
|
||
putchar_locked REMOVED
|
||
putgrent NEW: GNU ext.
|
||
putmsg NEW: STREAMS
|
||
putpmsg NEW: STREAMS
|
||
pututxline NEW: Unix98
|
||
pwrite NEW: Unix98
|
||
pwrite64 NEW: LFS
|
||
readdir64 NEW: LFS
|
||
readdir64_r NEW: LFS
|
||
remquo NEW: ISO C 9x
|
||
remquof NEW: ISO C 9x
|
||
remquol NEW: ISO C 9x
|
||
round NEW: ISO C 9x
|
||
roundf NEW: ISO C 9x
|
||
roundl NEW: ISO C 9x
|
||
rtime NEW: GNU ext.
|
||
scalbln NEW: ISO C 9x
|
||
scalblnf NEW: ISO C 9x
|
||
scalblnl NEW: ISO C 9x
|
||
scandir64 NEW: LFS
|
||
sendfile NEW: kernel
|
||
setcontext NEW: Unix98
|
||
setrlimit64 NEW: LFS
|
||
setutxent NEW: Unix98
|
||
sighold NEW: Unix98
|
||
sigignore NEW: Unix98
|
||
sigqueue NEW: POSIX.1b
|
||
sigrelse NEW: Unix98
|
||
sigset NEW: POSIX.1b
|
||
sigtimedwait NEW: POSIX.1b
|
||
sigwaitinfo NEW: POSIX.1b
|
||
sincos NEW: GNU ext.
|
||
sincosf NEW: GNU ext.
|
||
sincosl NEW: GNU ext.
|
||
statfs64 NEW: LFS
|
||
statvfs NEW: Unix98
|
||
statvfs64 NEW: LFS
|
||
strcasestr NEW: GNU ext.
|
||
strtoimax NEW: ISO C 9x
|
||
strtoumax NEW: ISO C 9x
|
||
strverscmp NEW: GNU ext.
|
||
svcauthdes_stats NEW: Secure RPC
|
||
svcunix_create NEW: sunrpc etx
|
||
svcunixfd_create NEW: sunrpc ext
|
||
swapcontext NEW: Unix98
|
||
tcgetsid NEW: Unix98 PTY
|
||
tdestroy NEW: GNU ext.
|
||
tgamma NEW: ISO C 9x
|
||
tgammaf NEW: ISO C 9x
|
||
tgammal NEW: ISO C 9x
|
||
tmpfile64 NEW: LFS
|
||
trunc NEW: ISO C 9x
|
||
truncate64 NEW: LFS
|
||
truncf NEW: ISO C 9x
|
||
truncl NEW: ISO C 9x
|
||
umount2 NEW: kernel
|
||
unlockpt NEW: Unix98 PTY
|
||
updwtmpx NEW: Unix98
|
||
user2netname NEW: Secure RPC
|
||
utmpxname NEW: Unix98
|
||
versionsort NEW: GNU ext.
|
||
versionsort64 NEW: GNU ext.
|
||
waitid NEW: Unix98
|
||
wcscasecmp NEW: GNU ext.
|
||
wcsncasecmp NEW: GNU ext.
|
||
wcsnlen NEW: GNU ext.
|
||
wcstoimax NEW: ISO C 9x
|
||
wcstoll NEW: ISO C 9x
|
||
wcstoull NEW: ISO C 9x
|
||
wcstoumax NEW: ISO C 9x
|
||
wcswcs NEW: Unix98
|
||
wordexp NEW: POSIX.2
|
||
wordfree NEW: POSIX.2
|
||
write_profiling REMOVED
|
||
xdecrypt NEW: Secure RPC
|
||
xdr_authdes_cred NEW: Secure RPC
|
||
xdr_authdes_verf NEW: Secure RPC
|
||
xdr_cryptkeyarg NEW: Secure RPC
|
||
xdr_cryptkeyarg2 NEW: Secure RPC
|
||
xdr_cryptkeyres NEW: Secure RPC
|
||
xdr_getcredres NEW: Secure RPC
|
||
xdr_key_netstarg NEW: Secure RPC
|
||
xdr_key_netstres NEW: Secure RPC
|
||
xdr_keybuf NEW: Secure RPC
|
||
xdr_keystatus NEW: Secure RPC
|
||
xdr_netnamestr NEW: Secure RPC
|
||
xdr_sizeof NEW: Secure RPC
|
||
xdr_unixcred NEW: sunrpc ext
|
||
xencrypt NEW: Secure RPC
|
||
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
||
|
||
Version 2.0.6
|
||
|
||
* more bug fixes
|
||
|
||
|
||
Version 2.0.5
|
||
|
||
* more bug fixes
|
||
|
||
* inet_ntoa is thread-safe
|
||
|
||
* updwtmp is moved from libutil to libc
|
||
|
||
* rewrite of cbrt function
|
||
|
||
* update of timezone data
|
||
|
||
Version 2.0.4
|
||
|
||
* more bug fixes
|
||
|
||
Version 2.0.3
|
||
|
||
* more bug fixes
|
||
|
||
Version 2.0.2
|
||
|
||
* more bug fixes
|
||
|
||
* add atoll function
|
||
|
||
* fix complex problems in Berkeley DB code
|
||
|
||
* fix math functions
|
||
|
||
Version 2.0.1
|
||
|
||
* fixed lots of header problems (especially Linux/GNU specific)
|
||
|
||
* dynamic loader preserves all registers
|
||
|
||
* Roland McGrath provided support for handling of auxiliary objects in
|
||
the ELF dynamic loader.
|
||
|
||
* support for parallel builds is improved
|
||
|
||
Version 2.0
|
||
|
||
* GNU extensions are no longer declared by default. To enable them you
|
||
must define the macro `_GNU_SOURCE' in your program or compile with
|
||
`-D_GNU_SOURCE'.
|
||
|
||
* The library has changed from using GNU ld symbol aliases to using weak
|
||
symbols where available. The ELF object file format supports weak
|
||
symbols; GNU ld also supports weak symbols in the a.out format. (There
|
||
is also now support for other GNU ld extensions in ELF. Use the
|
||
`--with-elf' option to configure to indicate you have ELF, and
|
||
`--with-gnu-ld' if using GNU ld.) This change resulted in the deletion
|
||
of many files which contained only symbol aliases, reducing the size of
|
||
the source and the compiled library; many other files were renamed to
|
||
less cryptic names previously occupied by the symbol alias files.
|
||
There is a new header file <elf.h> for programs which operate on
|
||
files in the ELF format.
|
||
|
||
* Converted to Autoconf version 2, so `configure' has more options.
|
||
Run `configure --help' to see the details.
|
||
|
||
* The library can now be configured to build profiling, highly-optimized
|
||
(but undebuggable), and/or shared libraries (ELF with GNU ld only). The
|
||
`--enable-profile', `--enable-omitfp', and `--enable-shared' options to
|
||
`configure' enable building these extra libraries. The shared library is
|
||
built by default when using both ELF and GNU ld. When shared libraries
|
||
are enabled, the new library `-ldl' is available for arbitrary run-time
|
||
loading of shared objects; its interface is defined in <dlfcn.h>. The
|
||
new header file <link.h> gives access to the internals of the run-time
|
||
dynamic linker, `ld.so'. The shell script `ldd' is similar to the
|
||
application of same name on other systems and it provides information
|
||
about dynamically linked binaries.
|
||
|
||
* The C library now provides the run-time support code for profiling
|
||
executables compiled with `-pg'. Programs can control the profiling code
|
||
through the interface in <sys/gmon.h>. The `gmon.out' files written by
|
||
the GNU C library can be read only by GNU `gprof' (from GNU binutils);
|
||
the support for this file format was contributed by David Mosberger-Tang.
|
||
|
||
* The math code has been replaced with a math library based on fdlibm from
|
||
Sun, and modified by JT Conklin and Ulrich Drepper with i387 support, by
|
||
Ian Taylor with `float' functions and by Ulrich Drepper with `long double'
|
||
functions. The math functions now reside in a separate library, so
|
||
programs using them will need to use `-lm' their linking commands.
|
||
|
||
* John C. Bowman contributed optimized ix87 assembler inline functions.
|
||
|
||
* Ulrich Drepper has contributed support for an `/etc/nsswitch.conf'
|
||
mechanism similar to that found in Solaris 2. This is now used for the
|
||
group, passwd, hosts, networks, services, protocols, rpc, ethers,
|
||
shadow, netgroup, publickey, and alias databases. The `nsswitch.conf'
|
||
file controls what services are used for each individual database. This
|
||
works by loading shared libraries with names specified in `nsswitch.conf',
|
||
so service modules can be changed or added at any time without even
|
||
relinking any program. Currently there are the file, db, and NIS based
|
||
NSS services available.
|
||
|
||
* The new functions `strtoq' and `strtouq' parse integer values from
|
||
strings, like `strtol' and `strtoul', but they return `long long int' and
|
||
`unsigned long long int' values, respectively (64-bit quantities).
|
||
|
||
* The new functions `strtof' and `strtold' parse floating-point values from
|
||
strings, like `strtod', but they return `float' and `long double' values,
|
||
respectively (on some machines `double' and `long double' are the same).
|
||
|
||
* Ulrich Drepper has contributed new implementations of the floating-point
|
||
printing and reading code used in the `printf' family of functions and
|
||
`strtod', `strtof', and `strtold'. These new functions are perfectly
|
||
accurate, and much faster than the old ones.
|
||
|
||
* The implementation of the POSIX locale model was completely rewritten by
|
||
Ulrich Drepper. This includes the new programs `localedef' and `locale'
|
||
to compile the POSIX locale definition.
|
||
|
||
* The former dummy implementations of the strcoll and strxfrm function are
|
||
now replaced by fully functional code contributed by Ulrich Drepper. The
|
||
collation information comes from the POSIX locale definitions.
|
||
|
||
* The new header <langinfo.h> defines an interface for accessing
|
||
various locale-dependent data (using the locale chosen with `setlocale').
|
||
|
||
* Ulrich Drepper has contributed a new suite of functions for operation on
|
||
wide-character and multibyte-character strings, in <wchar.h>;
|
||
and classification and case conversion of wide characters, in <wctype.h>.
|
||
These new functions are conforming to the ISO C, Amendement 1 specification.
|
||
|
||
* There is now a second implementation of the standard I/O library available.
|
||
It comes from GNU libg++ as was written by Per Bothner, heavily modified
|
||
by Hongjiu Lu and made thread safe by Ulrich Drepper.
|
||
|
||
* You can now use positional parameter specifications in format strings
|
||
for the `printf' and `scanf' families of functions. For example,
|
||
`printf ("Number %2$d, Mr %1$s\n", "Jones", 6);'' prints
|
||
``Number 6, Mr Jones''. This is mainly useful when providing different
|
||
format strings for different languages, whose grammars may dictate
|
||
different orderings of the values being printed. To support this
|
||
feature, the interface for `register_printf_handler' has changed; see
|
||
the header file <printf.h> for details.
|
||
|
||
* The `printf' and `scanf' families of functions now understand a new
|
||
formatting flag for numeric conversions: the ' flag (e.g. %'d or %'f) says
|
||
to group numbers as indicated by the locale; for `scanf' and friends, this
|
||
says to accept as valid only a number with all the proper grouping
|
||
separators in the right places. In the default "C" locale, numbers are
|
||
not grouped; but locales for specific countries will define the usual
|
||
conventions (i.e. separate thousands with `,' in the US locale).
|
||
|
||
* The pgrp functions have been regularized, slightly incompatibly but much
|
||
less confusingly. The core functions are now `getpgid' and `setpgid',
|
||
which take arguments for the PID to operate on; the POSIX.1 `getpgrp' (no
|
||
argument) and BSD `setpgrp' (identical to `setpgid') functions are
|
||
provided for compatibility. There is no longer an incompatible `getpgrp'
|
||
with an argument declared under _BSD_SOURCE; no BSD code uses it.
|
||
|
||
* The new header file <fts.h> and suite of functions simplify programs that
|
||
operate on directory trees. This code comes from 4.4 BSD.
|
||
|
||
* The resolver code has been updated from the BIND 4.9.5-P1 release.
|
||
Parts of the code were heavily modified by Ulrich Drepper to fit in the
|
||
NSS scheme used in glibc.
|
||
|
||
* There is a new malloc debugging hook `__memalign_hook'.
|
||
|
||
* There are new typedefs `ushort' for `unsigned short int' and `uint' for
|
||
`unsigned int' in <sys/types.h>. These are for compatibility only and
|
||
their use is discouraged.
|
||
|
||
* The `-lmcheck' library to enable standard malloc debugging hooks is now
|
||
done differently, so that it works even without GNU ld.
|
||
|
||
* New function `euidaccess' checks allowed access to a file like `access',
|
||
but using the effective IDs instead of the real IDs.
|
||
|
||
* The time zone data files have been updated for the latest and greatest
|
||
local time conventions of the countries of the world.
|
||
|
||
* The new function `dirfd' extracts the file descriptor used by a DIR stream;
|
||
see <dirent.h>.
|
||
|
||
* The new functions `ecvt', `fcvt', and `gcvt' provide an obsolete interface
|
||
for formatting floating-point numbers. They are provided only for
|
||
compatibility; new programs should use `sprintf' instead. There are
|
||
also equivalent function for the `long double' floating-point type and
|
||
all functions also exist in a reentrant form.
|
||
|
||
* The new auxiliary library `-lutil' from 4.4 BSD contains various
|
||
functions for maintaining the login-record files (primarily of use to
|
||
system programs such as `login'), and convenient functions for
|
||
allocating and initializing a pseudo-terminal (pty) device.
|
||
|
||
* Ulrich Drepper has contributed new support for System V style
|
||
shared memory and IPC on systems that support it.
|
||
|
||
* Ulrich Drepper has contributed several miscellaneous new functions found
|
||
in System V: The `hsearch' family of functions provide an effective
|
||
implementation of hash tables; `a64l' and `l64a' provide a very simple
|
||
binary to ASCII mapping; `drand48' and friends provide a 48-bit random
|
||
number generator.
|
||
|
||
* Ulrich Drepper has contributed new reentrant counterparts for the
|
||
`random' and `hsearch' families of functions; `random_r', `hsearch_r', etc.
|
||
|
||
* Ulrich Drepper has contributed new, highly-optimized versions of several
|
||
string functions for the i486/Pentium family of processors.
|
||
|
||
* Ulrich Drepper has updated the Linux-specific code, based largely
|
||
on work done in Hongjiu Lu's version of GNU libc for Linux.
|
||
The GNU library now supports Linux versions 2.0.10 and later,
|
||
using the ELF object file format (i[3456]86-*-linux).
|
||
|
||
* Andreas Schwab has ported the C library to Linux/m68k (m68k-*-linux).
|
||
|
||
* David Mosberger-Tang and Richard Henderson have ported the C library
|
||
to Linux/Alpha (alpha-*-linux). Richard Henderson contributed the
|
||
dynamic linking support for ELF/Alpha.
|
||
|
||
* Richard Henderson contributed several Alpha optimized assembler function
|
||
for arithmetic and string handling.
|
||
|
||
* Ulrich Drepper has contributed a new set of message catalog functions to
|
||
support multiple languages using the <libintl.h> interface, for use with
|
||
his new package GNU gettext. Translation volunteers have contributed
|
||
catalogs of the library's messages in Spanish, German, and Korean.
|
||
|
||
* For compatibility with XPG4, Ulrich Drepper has contributed the `gencat'
|
||
program and the `catgets' function for reading the catalog files it
|
||
creates. (The <libintl.h> interface is preferred; we include the
|
||
<nl_types.h> interface using `catgets' only for source compatibility with
|
||
programs already written to use it.)
|
||
|
||
* New header file <values.h> gives SVID-compatible names for <limits.h>
|
||
constants.
|
||
|
||
* Various new macros, declarations, and small header files for compatibility
|
||
with 4.4 BSD.
|
||
|
||
* New function `group_member' is a convenient way to check if a process has
|
||
a given effective group ID.
|
||
|
||
* When using GCC 2.7 and later, the socket functions are now declared in a
|
||
special way so that passing an argument of type `struct sockaddr_in *',
|
||
`struct sockaddr_ns *', or `struct sockaddr_un *' instead of the generic
|
||
`struct sockaddr *' type, does not generate a type-clash warning.
|
||
|
||
* New function `error' declared in header file <error.h> is a convenient
|
||
function for printing error messages and optionally exiting; this is the
|
||
canonical function used in GNU programs. The new functions `err', `warn',
|
||
and friends in header file <err.h> are the canonical 4.4 BSD interface for
|
||
doing the same thing.
|
||
|
||
* The <glob.h> interface has several new flags from 4.4 BSD that extend the
|
||
POSIX.2 `glob' function to do ~ and {...} expansion.
|
||
|
||
* New function `unsetenv' complements `setenv' for compatibility with 4.4 BSD.
|
||
`clearenv' which is used in POSIX.9 is also available.
|
||
|
||
* New function `getsid' returns session ID number on systems that support it.
|
||
|
||
* We have incorporated the 4.4 BSD `db' library (version 1.85). New header
|
||
files <db.h> and <mpool.h> provide a rich set of functions for several
|
||
types of simple databases stored in memory and in files, and <ndbm.h> is
|
||
an old `ndbm'-compatible interface using the `db' functions. Link with
|
||
`-ldb' to get these functions.
|
||
|
||
* New macro `strdupa' copies a string like `strdup', but uses local stack
|
||
space from `alloca' instead of dynamic heap space from `malloc'.
|
||
|
||
* New function `strnlen' is like `strlen' but searches only a given maximum
|
||
number of characters for the null terminator. `stpncpy', `strndup' and
|
||
`strndupa' are similar variants for the `stpcpy', `strdup' and `strdupa'
|
||
function.
|
||
|
||
* New function `statfs' in header <sys/statfs.h>.
|
||
|
||
* The new <argz.h> and <envz.h> interfaces contributed by Miles Bader
|
||
provide convenient functions for operating on blocks of null-terminated
|
||
strings.
|
||
|
||
* A new suite of functions in <utmp.h> handle all the details of reading
|
||
and writing the utmp file.
|
||
|
||
* An implementation of the NIS/YP(tm) based NSS service was contributed by
|
||
Thorsten Kukuk.
|
||
|
||
* Paul Eggert and Ulrich Drepper modified the `strftime' function to be
|
||
completely POSIX compliant and also implemented the extended functionality
|
||
to handle alternate digit representation and alternate era date formats.
|
||
|
||
* Ulrich Drepper provided an implementation of the `strptime' function
|
||
defined in XPG4.2 which transforms a string into a `struct tm' value.
|
||
|
||
* Paul Eggert provided the tzselect shell script as part of the timezone
|
||
code. The shell script makes it easy to select the correct timezone
|
||
specification.
|
||
|
||
* The implementation of the malloc family of functions is completely replaced
|
||
by a new implementation by Doug Lea with many improvements by Wolfram Gloger.
|
||
The implementation uses the mmap function (if available) and it is
|
||
optimized for the use in multi threaded programs.
|
||
|
||
* Ulrich Drepper contributed a MD5 "encryption" for the crypt family of
|
||
functions. This new functionality is usable by specifying a special
|
||
salt string and it is compatible with implementation on *BSD systems.
|
||
|
||
* Lots of functions from the XPG4.2 standard were added by Ulrich Drepper:
|
||
`getsubopt' to handle second level command line options, `bsd_signal'
|
||
to access BSD style `signal' functionality, the obsolete `regexp' style
|
||
expression matcher.
|
||
|
||
* the `lchown' function is available on system which support this
|
||
functionality.
|
||
|
||
* The implementation of the shadow password handling function was contributed
|
||
by Ulrich Drepper.
|
||
|
||
* David Mosberger-Tang changed the SunRPC implementation to be 64bit safe.
|
||
|
||
* POSIX.1g support was added. The <sys/select.h> header is available,
|
||
`isfdtype' and `pselect' are implemented. Craig Metz contributed an
|
||
implementation of `getaddrinfo'.
|
||
|
||
Version 1.09
|
||
|
||
* For cross-compilation you should now set `BUILD_CC' instead of `HOST_CC'.
|
||
|
||
* New header file <fstab.h> and new functions `getfsspec', `getfsent' and
|
||
friends, for parsing /etc/fstab. This code comes from 4.4 BSD.
|
||
|
||
* The new function `daemon' from 4.4 BSD is useful for server programs that
|
||
want to put themselves in the background.
|
||
|
||
* Joel Sherrill has contributed support for several standalone boards that
|
||
run without an operating system.
|
||
|
||
* `printf', `scanf' and friends now accept a `q' type modifier for long
|
||
long int as well as `ll'. Formats using these might be `%qu' or `%lld'.
|
||
|
||
* All of the code taken from BSD (notably most of the math and networking
|
||
routines) has been updated from the BSD 4.4-Lite release.
|
||
|
||
* The resolver code has been updated from the BIND-4.9.3-BETA9 release.
|
||
|
||
* The new functions `getdomainname' and `setdomainname' fetch or change the
|
||
YP/NIS domain name. These are system calls which exist on systems which
|
||
have YP (aka NIS).
|
||
|
||
* The time zone data files have been updated for the latest international
|
||
conventions.
|
||
|
||
* The SunRPC programs `portmap' and `rpcinfo' are now installed in
|
||
$(sbindir) (usually /usr/local/sbin) instead of $(bindir).
|
||
|
||
Version 1.08
|
||
|
||
* The C library now includes support for Sun RPC, from Sun's free
|
||
RPCSRC-4.0 distribution. The `portmap', `rpcinfo', and `rpcgen' programs
|
||
are included. (There is still no support for YP.)
|
||
|
||
* Tom Quinn has contributed a port of the C library to SGI machines running
|
||
Irix 4 (mips-sgi-irix4).
|
||
|
||
* The new `lockf' function is a simplified interface to the locking
|
||
facilities of `fcntl', included for compatibility.
|
||
|
||
* New time functions `timegm', `timelocal', and `dysize' for compatibility.
|
||
|
||
* New header file <sys/timeb.h> and new function `ftime' for compatibility.
|
||
|
||
* New header files <poll.h> and <sys/poll.h> and new function `poll' for
|
||
compatibility.
|
||
|
||
* The error message printed by `assert' for a failed assertion now includes
|
||
the name of the program (if using GNU ld) and the name of the calling
|
||
function (with versions of GCC that support this).
|
||
|
||
* The `psignal' function is now declared in <signal.h>, not <stdio.h>.
|
||
|
||
* The library now includes the <sys/mman.h> header file and memory
|
||
management functions `mmap', `munmap', `mprotect', `msync', and
|
||
`madvise', on systems that support those facilities.
|
||
|
||
* The interface for `mcheck' has changed slightly: the function called to
|
||
abort the program when an allocation inconsistency is detected now takes
|
||
an argument that indicates the type of failure. The new function
|
||
`mprobe' lets you request a consistency check for a particular block at
|
||
any time (checks are normally done only when you call `free' or `realloc'
|
||
on a block).
|
||
|
||
* It is now possible to easily cross-compile the C library, building on one
|
||
system a library to run on another machine and/or operating system. All
|
||
you need to do is set the variable `HOST_CC' in `configparms' to the
|
||
native compiler for programs to run on the machine you are building on (a
|
||
few generator programs are used on Unix systems); set `CC' to the
|
||
cross-compiler.
|
||
|
||
* The new function `fexecve' (only implemented on the GNU system) executes
|
||
a program file given a file descriptor already open on the file.
|
||
|
||
Version 1.07
|
||
|
||
* Brendan Kehoe has contributed most of a port to the DEC Alpha
|
||
running OSF/1 (alpha-dec-osf1). He says it is 75% complete.
|
||
|
||
* You can set the variable `libprefix' in `configparms' to specify a prefix
|
||
to be prepended to installed library files; this makes it easy to install
|
||
the GNU C library to be linked as `-lgnuc' or whatever.
|
||
|
||
* The new `stpncpy' is a cross between `stpcpy' and `strncpy': It
|
||
copies a limited number of characters from a string, and returns the
|
||
address of the last character written.
|
||
|
||
* You no longer need to check for whether the installed `stddef.h' is
|
||
compatible with the GNU C library. configure now checks for you.
|
||
|
||
* You can now define a per-stream `fileno' function to convert the
|
||
stream's cookie into an integral file descriptor.
|
||
|
||
* ``malloc (0)'' no longer returns a null pointer. Instead, it
|
||
allocates zero bytes of storage, and returns a unique pointer which
|
||
you can pass to `realloc' or `free'. The behavior is undefined if
|
||
you dereference this pointer.
|
||
|
||
* The C library now runs on Sony NEWS m68k machines running either
|
||
NewsOS 3 or NewsOS 4.
|
||
|
||
* The new `syscall' function is a system-dependent primitive function
|
||
for invoking system calls. It has the canonical behavior on Unix
|
||
systems, including unreliable return values for some calls (such as
|
||
`pipe', `fork' and `getppid').
|
||
|
||
* The error code `EWOULDBLOCK' is now obsolete; it is always defined
|
||
to `EAGAIN', which is the preferred name. On systems whose kernels
|
||
use two distinct codes, the C library now translates EWOULDBLOCK to
|
||
EAGAIN in every system call function.
|
||
|
||
Version 1.06
|
||
|
||
* The GNU C Library Reference Manual is now distributed with the library.
|
||
`make dvi' will produce a DVI file of the printed manual.
|
||
`make info' will produce Info files that you can read on line using C-h i
|
||
in Emacs or the `info' program.
|
||
Please send comments on the manual to bug-glibc-manual@gnu.org.
|
||
|
||
* The library now supports SVR4 on i386s (i386-unknown-sysv4).
|
||
|
||
* Brendan Kehoe has contributed a port to Sun SPARCs running Solaris 2.
|
||
|
||
* Jason Merrill has contributed a port to the Sequent Symmetry running
|
||
Dynix version 3 (i386-sequent-dynix).
|
||
|
||
* The library has been ported to i386s running SCO 3.2.4 (also known as SCO
|
||
ODT 2.0; i386-unknown-sco3.2.4) or SCO 3.2 (i386-unknown-sco3.2).
|
||
|
||
* New function `memory_warnings' lets you arrange to get warnings when
|
||
malloc is running out of memory to allocate, like Emacs gives you.
|
||
|
||
* The C library now contains the relocating allocator used in Emacs 19 for
|
||
its editing buffers. This allocator (ralloc) minimizes allocation
|
||
overhead and fragmentation by moving allocated regions around whenever it
|
||
needs to. You always refer to a ralloc'd region with a "handle" (a
|
||
pointer to a pointer--an object of type `void **').
|
||
|
||
* There is a new `printf' format: `%m' gives you the string corresponding
|
||
to the error code in `errno'.
|
||
|
||
* In `scanf' formats, you can now use `%as' or `%a[' to do the normal `%s'
|
||
or `%[' conversion, but instead of filling in a fixed-sized buffer you
|
||
pass, the `a' modifier says to fill in a `char **' you pass with a
|
||
malloc'd string.
|
||
|
||
* The `fnmatch' function supports the new flag bits `FNM_LEADING_DIR' and
|
||
`FNM_CASEFOLD'. `FNM_LEADING_DIR' lets a pattern like `foo*' match a
|
||
name like `foo/bar'. `FNM_CASEFOLD' says to ignore case in matching.
|
||
|
||
* `mkstemp' is a traditional Unix function to atomically create and open a
|
||
uniquely-named temporary file.
|
||
|
||
Version 1.05
|
||
|
||
* The standard location for the file that says what the local timezone is
|
||
has changed again. It is now `/usr/local/etc/localtime' (or more
|
||
precisely, `${prefix}/etc/localtime') rather than `/etc/localtime'.
|
||
|
||
* The distribution no longer contains any files with names longer than 14
|
||
characters.
|
||
|
||
* `struct ttyent' has two new flag bits: TTY_TRUSTED and TTY_CONSOLE.
|
||
These are set by the new `trusted' and `console' keywords in `/etc/ttys'.
|
||
|
||
* New functions `ttyslot' and `syslog' from 4.4 BSD.
|
||
|
||
Version 1.04
|
||
|
||
* The configuration process has changed quite a bit. The `configure'
|
||
script is now used just like the configuration scripts for other GNU
|
||
packages. The `sysdeps' directory hierarchy is much rearranged.
|
||
The file `INSTALL' explains the new scheme in detail.
|
||
|
||
* The header files no longer need to be processed into ANSI C and
|
||
traditional C versions. There is just one set of files to install, and
|
||
it will work with ANSI or old C compilers (including `gcc -traditional').
|
||
|
||
* Brendan Kehoe and Ian Lance Taylor have ported the library to the
|
||
MIPS DECStation running Ultrix 4.
|
||
|
||
* The Sun 4 startup code (crt0) can now properly load SunOS 4 shared libraries.
|
||
Tom Quinn contributed the initial code. The GNU C library can NOT yet be
|
||
made itself into a shared library.
|
||
|
||
* Yet further improved support for the i386, running 4.3 BSD-like systems
|
||
(such as Mach 3 with the Unix single-server), or System V.
|
||
|
||
* New function `strncasecmp' to do case-insensitive string comparison
|
||
with limited length.
|
||
|
||
* New function `strsep' is a reentrant alternative to `strtok'.
|
||
|
||
* New functions `scandir' and `alphasort' for searching directories.
|
||
|
||
* New function `setenv' is a better interface to `putenv'.
|
||
|
||
* Ian Lance Taylor has contributed an implementation of the SVID `ftw'
|
||
function for traversing a directory tree.
|
||
|
||
* The GNU obstack package is now also part of the C library.
|
||
The new function `open_obstack_stream' creates a stdio stream that
|
||
writes onto an obstack; `obstack_printf' and `obstack_vprintf' do
|
||
formatted output directly to an obstack.
|
||
|
||
* Miscellaneous new functions: reboot, nice, sigaltstack (4.4 BSD only),
|
||
cfmakeraw, getusershell, getpass, swab, getttyent, seteuid, setegid.
|
||
|
||
* `FNM_FILE_NAME' is another name for `FNM_PATHNAME', used with `fnmatch'.
|
||
|
||
* The new functions `strfry' and `memfrob' do mysterious and wonderful
|
||
things to your strings.
|
||
|
||
* There are some new test programs: test-fseek, testmb, and testrand.
|
||
|
||
* Some work has been done to begin porting the library to 4.4 BSD and Linux.
|
||
These ports are not finished, but are a good starting place for really
|
||
supporting those systems.
|
||
|
||
* `/etc/localtime' is now the standard location for the file that says what
|
||
the local timezone is, rather than `/usr/local/lib/zoneinfo/localtime'.
|
||
This follows the general principle that `/etc' is the place for all local
|
||
configuration files.
|
||
|
||
* The C library header files now use `extern "C"' when used by the C++
|
||
compiler, so the C library should now work with C++ code.
|
||
|
||
* The header file <bstring.h> is gone. <string.h> now declares bcopy,
|
||
bcmp, bzero, and ffs.
|
||
|
||
* Mike Haertel (of GNU e?grep and malloc fame) has written a new sorting
|
||
function which uses the `merge sort' algorithm, and is said to be
|
||
significantly faster than the old GNU `qsort' function. Merge sort is
|
||
now the standard `qsort' function. The new algorithm can require a lot
|
||
of temporary storage; so, the old sorting function is called when the
|
||
required storage is not available.
|
||
|
||
* The C library now includes Michael Glad's Ultra Fast Crypt, which
|
||
provides the Unix `crypt' function, plus some other entry points.
|
||
Because of the United States export restriction on DES implementations,
|
||
we are distributing this code separately from the rest of the C library.
|
||
There is an extra distribution tar file just for crypt; it is called
|
||
`glibc-VERSION-crypt.tar.Z', e.g. `glibc-1.04-crypt.tar.Z'. You can just
|
||
unpack the crypt distribution along with the rest of the C library and
|
||
build; you can also build the library without getting crypt. Users
|
||
outside the USA can get the crypt distribution via anonymous FTP from
|
||
ftp.uni-c.dk [129.142.6.74], or another archive site outside the U.S.
|
||
|
||
* The code and header files taken from 4.4 BSD have been updated with the
|
||
latest files released from Berkeley.
|
||
|
||
----------------------------------------------------------------------
|
||
Copyright information:
|
||
|
||
Copyright (C) 1992, 93, 94, 95, 96 Free Software Foundation, Inc.
|
||
|
||
Permission is granted to anyone to make or distribute verbatim copies
|
||
of this document as received, in any medium, provided that the
|
||
copyright notice and this permission notice are preserved,
|
||
thus giving the recipient permission to redistribute in turn.
|
||
|
||
Permission is granted to distribute modified versions
|
||
of this document, or of portions of it,
|
||
under the above conditions, provided also that they
|
||
carry prominent notices stating who last changed them.
|
||
|
||
Local variables:
|
||
version-control: never
|
||
end:
|