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NEWS
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GNU C Library NEWS -- history of user-visible changes. 2008-10-31
Copyright (C) 1992-2007, 2008 Free Software Foundation, Inc.
See the end for copying conditions.
Please send GNU C library bug reports via <http://sources.redhat.com/bugzilla/>
using `glibc' in the "product" field.
Version 2.9
* Unified lookup for getaddrinfo: IPv4 and IPv6 addresses are now looked
up at the same time. Implemented by Ulrich Drepper.
* TLS descriptors for LD and GD on x86 and x86-64.
Implemented by Alexandre Oliva.
* getaddrinfo now handles DCCP and UDPlite.
Implemented by Ulrich Drepper.
* New fixed-size conversion macros: htobe16, htole16, be16toh, le16toh,
htobe32, htole32, be32toh, le32toh, htobe64, htole64, be64toh, le64toh.
Implemented by Ulrich Drepper.
* New implementation of memmem, strstr, and strcasestr which is O(n).
Implemented by Eric Blake.
* New Linux interfaces: inotify_init1, dup3, epoll_create1, pipe2
* Implement "e" option for popen to open file descriptor with the
close-on-exec flag set. Implemented by Ulrich Drepper.
* Implement "b" mode for fmemopen. In this mode writes writes don't
implicitly add a NUL byte and seeks from the end of the buffer really
use the buffer end, not the string length as the basis.
Implemented by Ulrich Drepper.
* Many functions, exported and internal, now atomically set the close-on-exec
flag when run on a sufficiently new kernel. Implemented by Ulrich Drepper.
* Sorting rules for some Indian languages (Kannada, Gurumukhi, Telugu,
Sinhala)
Implemented by Pravin Satpute.
* New locales: sd_IN, sd_IN@devanagari, ks_IN@devanagari, ht_HT, en_AG, nl_AW.
Version 2.8
* New locales: bo_CN, bo_IN, shs_CA.
* New encoding: HP-ROMAN9, HP-GREEK8, HP-THAI8, HP-TURKISH8.
* Sorting rules for some Indian languages (Devanagari and Gujarati).
Implemented by Pravin Satpute.
* IPV6 addresses in /etc/resolv.conf can now have a scope ID
* nscd caches now all timeouts for DNS entries
Implemented by Ulrich Drepper.
* nscd is more efficient and wakes up less often.
Implemented by Ulrich Drepper.
* More checking functions: asprintf, dprintf, obstack_printf, vasprintf,
vdprintf, and obstack_vprintf.
Implemented by Jakub Jelinek.
* Faster memset for x86-64.
Implemented by Harsha Jagasia and H.J. Lu.
* Faster memcpy on x86.
Implemented by Ulrich Drepper.
* ARG_MAX is not anymore constant on Linux. Use sysconf(_SC_ARG_MAX).
Implemented by Ulrich Drepper.
* Faster sqrt and sqrtf implemention for some PPC variants.
Implemented by Stephen Munroe.
Version 2.7
* More checking functions: fread, fread_unlocked, open*, mq_open.
Implemented by Jakub Jelinek and Ulrich Drepper.
* Extend fortification to C++. Implemented by Jakub Jelinek.
* Implement 'm' modifier for scanf. Add stricter C99/SUS compliance
by not recognizing 'a' as a modifier when those specs are requested.
Implemented by Jakub Jelinek.
* PPC optimizations to math and string functions.
Implemented by Steven Munroe.
* New interfaces: mkostemp, mkostemp64. Like mkstemp* but allow additional
options to be passed. Implemented by Ulrich Drepper.
* More CPU set manipulation functions. Implemented by Ulrich Drepper.
* New Linux interfaces: signalfd, eventfd, eventfd_read, and eventfd_write.
Implemented by Ulrich Drepper.
* Handle private futexes in the NPTL implementation.
Implemented by Jakub Jelinek and Ulrich Drepper.
* Add support for O_CLOEXEC. Implement in Hurd. Use throughout libc.
Implemented by Roland McGrath and Ulrich Drepper.
* Linux/x86-64 vDSO support. Implemented by Ulrich Drepper.
* SHA-256 and SHA-512 based password encryption.
Implemented by Ulrich Drepper.
* New locales: ber_DZ, ber_MA, en_NG, fil_PH, fur_IT, fy_DE, ha_NG, ig_NG,
ik_CA, iu_CA, li_BE, li_NL, nds_DE, nds_NL, pap_AN, sc_IT, tk_TM, ug_CN,
yo_NG.
+ New iconv modules: MAC-CENTRALEUROPE, ISO-8859-9E, KOI8-RU.
Implemented by Ulrich Drepper.
Version 2.6
* New Linux interfaces: epoll_pwait, sched_getcpu.
* New generic interfaces: strerror_l.
* nscd can now cache the services database. Implemented by Ulrich Drepper.
Version 2.5
* For Linux, the sorting of addresses returned by getaddrinfo now also
handles rules 3, 4, and 7 from RFC 3484. I.e., all rules are handled.
Implemented by Ulrich Drepper.
* Allow system admin to configure getaddrinfo with the /etc/gai.conf file.
Implemented by Ulrich Drepper.
* New Linux interfaces: splice, tee, sync_file_range, vmsplice.
* New iconv module for MIK. Contributed by Alexander Shopov.
* For sites with broken group and/or passwd database, the auto-propagate
option of nscd can prevent creating ID lookup entries from the results
of a name lookup and vice versa. This usually is no problem but some
site might have problems with the default behavior.
Implemented by Ulrich Drepper.
* Iterating over entire database in NIS can be slow. With the
SETENT_BATCH_READ option in /etc/default/nss a system admin can decide
to trade time for memory. The entire database will be read at once.
Implemented by Ulrich Drepper.
* The interfaces introduced in RFC 3542 have been implemented by
Ulrich Drepper.
* Support for the new ELF hash table format was added by Ulrich Drepper.
* Support for priority inheritance mutexes added by Jakub Jelinek and
Ulrich Drepper.
* Support for priority protected mutexes added by Jakub Jelinek.
* New locales: nr_ZA, pa_PK, ca_AD, ca_FR, ca_IT, el_CY, tr_CY, as_IN,
or_IN, csb_PL, fy_NL, sr_ME.
Version 2.4
* More overflow detection functions.
* New iconv converters for IBM1025, IBM1122, IBM1137, IBM1153,
IBM1154, IBM1155, IBM1156, IBM1157, and IBM1158 contributed by Jiro Sekiba.
More converters for IBM803, IBM901, IBM902, IBM921, IBM1008, IBM1097,
IBM1112, IBM1123, IBM1130, IBM1140, IBM1141, IBM1142, IBM1143, IBM1144,
IBM1145, IBM1146, IBM1147, IBM1148, IBM1149, IBM1166, IBM1167, IBM4517,
IBM4899, IBM4909, IBM4971, IBM5347, IBM9030, IBM9066, IBM9448, IBM12712,
IBM16804, IBM1364, IBM1371, IBM1388, IBM1390, and IBM1399 contributed
by Masahide Washizawa.
* It is now possible to install audit libraries for the dynamic linker using
LD_AUDIT. Implemented by Ulrich Drepper.
* The LinuxThreads add-on, providing pthreads on Linux 2.4 kernels, is no
longer supported. The new NPTL implementation requires Linux 2.6 kernels.
For a libc and libpthread that works well on Linux 2.4 kernels, we
recommend using the stable 2.3 branch.
* The new function open_wmemstream acts like open_memstream,
but uses a wchar_t wide character buffer.
* The new function ppoll is an improved version of poll, similar to pselect.
* New interfaces: fdopendir, openat, fstatat, fchmodat, fchownat,
futimesat, faccessat, mkdirat, mkfifoat, mknodat,
renameat, unlinkat, linkat, symlinkat, readlinkat.
* New Linux kernel system calls: unshare,
inotify_init, inotify_add_watch, inotify_rm_watch.
* The euidaccess function is now also known by the alias eaccess,
for compatibility with some other systems.
* Timezone data updated to 2006b version.
Version 2.3.6
* The following bugs are resolved with this release:
38, 253, 549, 622, 653, 721, 758, 851, 877, 915, 934, 955, 961,
1016, 1037, 1076, 1079, 1080, 1081, 1082, 1083, 1084, 1085, 1086,
1087, 1088, 1090, 1091, 1092, 1093, 1094, 1095, 1096, 1097, 1098,
1099, 1100, 1101, 1102, 1103, 1104, 1105, 1106, 1107, 1108, 1109,
1110, 1111, 1112, 1113, 1125, 1137, 1138, 1249, 1250, 1251, 1252,
1253, 1254, 1350, 1358, 1394, 1438, 1498, 1534
Visit <http://sources.redhat.com/bugzilla/> for the details of each bug.
* As of this release, GCC 4 can be used to compile the C Library.
* Timezone data updated to 2005m version.
Version 2.3.5
* The following bugs are resolved with this release:
284, 592, 602, 626, 633, 640, 650, 661, 671, 681, 693, 700, 710, 719,
722, 723, 725, 726, 727, 728, 729, 730, 731, 732, 733, 734, 735, 736,
737, 738, 739, 740, 741, 742, 743, 744, 745, 765, 767, 768, 769, 776,
777, 787, 821, 822, 823, 825
Visit <http://sources.redhat.com/bugzilla/> for the details of each bug.
Version 2.3.4
* Support for RFC 3678. Real implementations exist only for Linux so far.
Implemented by Ulrich Drepper.
* nscd can now cache entries persistently. Expiring entries are reloaded.
For speedups the cache can be shared in memory with client processes.
Implemented by Ulrich Drepper.
* nscd can now perform SELinux checks.
Implemented by Matthew Rickard <mjricka@epoch.ncsc.mil>.
* getaddrinfo queries are now cached. Canonical name lookup is performed
efficiently.
Implemented by Ulrich Drepper.
* The nothrow function attribute is used when headers are used by gcc when
compiling C code. This can avoid significant amounts of exception
handling data.
* The malloc functions perform more error checking and are stricter when
it comes to reacting on errors. The default action is to terminate
the process after showing an error message. Implemented by Ulrich Drepper.
* Reverse lookups of IPv6 addresses does not use bit string or .ip6.int
lookups anymore unless explicitly requested. Implemented by Ulrich Drepper.
* Namespaces in ld.so are implemented. DSOs can be loaded in separate
namespaces using the new function dlmopen(). This feature is of course,
like most other dynamic loading functionality, not available in statically
linked applications. Implemented by Ulrich Drepper.
* Low-overhead boundary checking variants of string and some stdio functions
were added. These are to be used in conjunction with a gcc patch by
Jakub Jelinek which adds calls to these functions if possible.
Implemented by Jakub Jelinek and Ulrich Drepper.
* Old code for several operating systems and machine architectures that
have not been in working condition in a long time have been removed from
the main source tree maintained by the GNU C Library's maintainers.
These files are now reside in the separate `ports' source module
that is usable as an add-on when building the library.
Version 2.3.3
* New functions `dladdr1' and `dlinfo' in <dlfcn.h> provide more ways to
interrogate the dynamic linker, compatible with the Solaris interface.
* ELF thread-local storage support (TLS) now works on PowerPC and PowerPC64;
implemented by Paul Mackerras, Steven Munroe, and Roland McGrath.
* getifaddrs now uses the netlink interface on Linux to get its information.
Implemented by Thorsten Kukuk.
* getaddrinfo now implements AI_V4MAPPED, AI_ALL, and AI_ADDRCONF.
Implemented by Ulrich Drepper.
* support for non-executable stacks on x86 has been added. Changes mostly
by Roland McGrath.
* regex is now much faster for multibyte locales. Changes by Jakub Jelinek
and Ulrich Drepper.
* getaddrinfo now performs destination address selection according to
RFC 3484.
Version 2.3.2
* Thread-safe interfaces for many functions that access locale data
were added in version 2.3, but these features were omitted from NEWS.
Many functions have variants with an `_l' suffix that take a `locale_t'
object as a parameter rather than consulting the current locale.
The new functions `newlocale', `duplocale', and `freelocale' in <locale.h>
create and maintain `locale_t' objects. Additionally, the new function
`uselocale' sets "the current locale" (as used by functions not so
parameterized) set for an individual thread. These features were added
in version 2.3, implemented by Ulrich Drepper and Roland McGrath.
* The functions getresuid, getresgid, setresuid, and setresgid, which
have long been available on Linux, are now declared in <unistd.h>
and are now also available on the Hurd.
* ELF thread-local storage support (TLS) now works on x86-64.
* The new dynamic string token $LIB is expanded in shared library names.
This normally expands to lib, but on some 64-bit platforms to lib64 instead.
* Aldy Hernandez contributed complete software floating point support for
PowerPC machines with no FPU.
* fexecve is implemented on Linux.
* The `btowc' function should work at least twice as fast due to
specialized callbacks in the iconv modules. Implemented by Bruno Haible.
* With approriate thread add-ons cancelable functions are now implemented
in libc.so as well. No need to call the function in libpthread. This
change allowed to finally disable the incorrect and expensive handling
of weak definition in ld.so.
* Yet more PLT entries in libc.so have been removed. We finally arrived
at the bare minimum. Startup times improved appropriately.
* Support for the new Linux/x86 system call interface was added. The
AT_SYSINFO auxiliary vector entry is recognized and handled.
Version 2.3
* Masahide Washizawa contributed iconv modules for IBM1163 and IBM1164
charsets.
* iconv (the program and the interface) now accepts empty names (excluding
options like //TRANSLIT) to mean "use charset of current locale".
* localedef can now transliterate characters in strings which are not in
the provided charmap. The information from the input locale is used.
* Prelinking support was added for ELF targets. This requires additional
tools and recent versions of the GNU binutils. Contributed by Jakub Jelinek.
* Read-only stdio streams now use mmap to speed up operation by eliminating
copying and buffer underflows. To use add 'm' to the mode string of
the fopen/fdopen/freopen call. Implemented by Ulrich Drepper.
* The malloc functions were completely rewritten by Wolfram Gloger based
on Doug Lea's malloc-2.7.0.c.
* Isamu Hasegawa contributed a completely new and POSIX-conformant
implementation of regex.
* Bruno Haible upgraded the iconv and locale implementation to support
Unicode 3.2.
* Contents of the LC_* and LANG environment variables in the CEN style are
not recognized anymore. It never was used. Change by Ulrich Drepper.
* The runtime (ld.so, libc, libpthread for Linux) now can handle the ELF
thread-local storage (TLS) ABI on some platforms.
Changes by Ulrich Drepper. SH support by Kaz Kojima.
* Bruno Haible contributed iconv converters for ISO-2022-JP-3, SHIFT JIS-X0213,
EUC-JISX0213, and TSCII.
* New header <ifaddrs.h> with functions `getifaddrs' and `freeifaddrs':
BSD-compatible interface for getting all network interface addresses.
Implementation for IPv4 by Roland McGrath.
* Loading of locale data is faster due to the introduction of a locale
archive. Implemented by Roland McGrath and Ulrich Drepper.
* Startup times are significantly reduced by not using exported functions
inside the library itself. Changes by Jakub Jelinek, Roland McGrath,
and Ulrich Drepper.
* Steven Munroe contributed a port to PowerPC64/Linux.
Version 2.2.6
* The Hurd now uses the GNU libio implementation of stdio rather than the
old GNU stdio implementation, and uses a new ABI (libc.so.0.3).
* The Hurd on x86 now has the `ioperm' function and <sys/io.h> header file
with the same behavior as the Linux system call of the same name.
Version 2.2.5
* Stephen Moshier implemented log2, log10, powl and cbrtl for the
128-bit long double format.
* Masahide Washizawa contributed iconv modules for IBM1132, IBM1133, IBM1160,
IBM1161, and IBM1162 charsets.
* Andreas Jaeger contributed a port to x86-64/Linux.
* Peter Bruin contributed a port to PowerPC/Hurd.
* libc functions using I/O streams now can handle wide-oriented streams
as well.
* optimizations in the dynamic linker. Binaries created by recent binutils
versions start up quicker due to reduced time spent on relocations.
* Support for use of gcc3 added by Jakub Jelinek and HJ Lu.
Version 2.2.4
* Stephen Moshier implemented cosh, expm1, log1p, acos, sinh, tanh,
asinh, atanh, j0 for the 128-bit long double format.
* Bruno Haible updated all the code handling Unicode in some form to
support Unicode 3.1.
* Speed of regex for single-byte locales is back to previous levels.
Patch by Isamu Hasegawa.
* Alpha, SPARC, and IA-64 now also using floating stacks.
* Startup time of internationalized applications greatly improved through
iconv cache. Use iconvconfig to generate the cache file.
Contributed by Ulrich Drepper.
* The IA-64 specific part of ld.so was rewritten to eliminate some pretty
severe performance problems. Patch by David Mosberger.
* The Hurd port got a lot more functionality like AIO, various stdio
extensions, etc. Mainly done by Roland McGrath.
* mtrace can now lookup symbols in shared libraries.
Version 2.2.3
* Intel's IA-64 math library is largely integrated. It provides fast and
accurate implementatations for most basic and standard math functions
in float, double, and long double format.
* Stephen Moshier implemented j0, j1, jn, y0, y1, yn, lgamma, erf, erfc,
and asin for the 96-bit long double format and asin, log, tan for the
128-bit long double format.
* The beginning of a last-bit accurate math library by IBM Haifa were added.
The basic double functions exist today. Contributed by Abraham Ziv
<ziv@il.ibm.com>, Moshe Olshansky <olshansk@il.ibm.com>, Ealan Henis
<ealan@il.ibm.com>, and Anna Reitman <reitman@il.ibm.com>.
* An asynchronous name lookup library was added. The interface is designed
after POSIX AIO. The proposal was circulated beforehand to get comments.
No negative ones came in. Implemented by Ulrich Drepper.
* Port to S390/64bit contributed by Martin Schwidefsky
<schwidefsky@de.ibm.com>.
* David Mosberger <davidm@hpl.hp.com> implemented the setcontext family
of functions for Linux/IA-64.
* The RPC code is now thread safe. Threads can now use the same service
of different services at the same time. Patch by Eric Norum
<eric.norum@usask.ca> with some help by Ulrich Drepper.
* Martin Schwidefsky <schwidefsky@de.ibm.com> implemented the setcontext
family of functions for Linux/S390.
* Ulrich Drepper <drepper@redhat.com> implemented the setcontext family
of functions for Linux/x86.
* Port to Linux/CRIS contributed by Axis Communications.
Version 2.2.2
* Lots of headers were cleaned up. Using the tool in the conform/ subdir
we can now check for namespace violations and missing declarations. The
result is that almost all headers are now Unix-compliant (as defined in
the upcoming XPG6). The negative side is that some programs might need
corrections, too, if they depend on the incorrect form of the headers in
previous versions which defined too many symbols and included too many
other headers.
* regex now handles multibyte character sets correctly.
Contributed by Isamu Hasegawa <isamu@yamato.ibm.com>.
* iconv (the program) does now conform to the upcoming XPG6 and handles
charmaps. Instead of the charset names the path of charmaps can be
provided and the conversion happens based on this data.
Contributed by Ulrich Drepper.
* The locale program now provides detailed information about the installed
locales. While
locale -a
only lists the names of the supported locales
locale -a --verbose
provides details such as country, language, and codeset name.
Contributed by Ulrich Drepper.
Version 2.2.1
* The gencat program now parses the input file according to the charset
selected by the LC_CTYPE category. This is important for stateful
character sets. To make generating catalogs easier there is a way
to overwrite the charset selected by the locale: before the first
message or $ quote line the catalog can contain a line like
$ codeset=ISO-8859-2
to select the charset (ISO-8859-2 in this case).
Implemented by Shinya Hanataka and Ulrich Drepper.
* New codeset conversion modules: IBM-922 (Estonia PC codeset),
IBM-1124 (Ukraine PC codeset), IBM-1129 (Vietnamese PC codeset).
Contributed by Masahide Washizawa <washi@jp.ibm.com>.
* Optimized string functions for Alpha ev6 and ev67 by Richard Henderson
<rth@redhat.com> and Rick Gorton <rick.gorton@alpha-processor.com>.
* The LANGUAGE environment variable is now ignored unless the locale is
changed from the default "C" locale.
* The usual bug fixes.
Version 2.2
* Greg McGary added runtime support for bounds checking using gcc's
new -fbounded-pointers option. ix86 target is complete. PowerPC
is in progress.
* Thorsten Kukuk added secure mode support to nscd.
* The Berkeley db libraries have been removed.
Related, the nss_db module is now in a separate package since it
obviously requires a database library being available.
* Wide character I/O streams implemented by Ulrich Drepper.
* Functions from the extended socket API added by Ulrich Drepper.
* Functions feenableexcept and fedisableexcept to control the
behaviour of individual exceptions have been added by Andreas Jaeger.
* ldconfig program added by Andreas Jaeger and Jakub Jelinek.
* The resolver code has been updated from bind 8.2.3-T5B which supports
threads. The integration was done by Andreas Jaeger, Adam D. Bradley,
and Mark Kettenis.
This change could in some situations effect backward compatibility. Since
now `_res' is a thread-local instead of a global variable, modifying it
in one thread does not have any effect in other threads.
The resolver library was also extended to allow IPv6 as the transport
protocol for the requests. This work was done by Stig Venaas.
* Compatibility code for K&R C compilers has been removed from the
header files. A ISO C compiler is needed to use the library
(conforming to either C89 or C99 standard).
* Complete rewrite of the localedef program to support multibyte character
sets. Implement handling of ISO 14651 and ISO 14652. Rewrite strcoll,
strxfrm, wcscoll, and wcsxfrm functions. Make isw*() functions work.
Implemented by Ulrich Drepper.
Bruno Haible significantly improved the generation and use of the data
structures for the wide character tables.
* Plural handling in gettext implemented by Ulrich Drepper.
* The utmp daemon has been removed.
* The port to MIPS-Linux has been finished by Andreas Jaeger.
* A port to Hitachi SH3 and SH4 has been contributed by Kazumoto Kojima
and Yutaka Niibe.
* POSIX clocks and timers implemented by Kaz Kylheku and Ulrich Drepper.
* POSIX barriers implemented by Kaz Kylheku.
* POSIX spawn function family implemented by Ulrich Drepper.
* POSIX spinlocks are now available.
* Timed wait functions for mutex, rwlock, and semaphores are implemented.
* the configure option --enable-kernel=X.Y.Z allows to strip out
compatibility for kernel versions before X.Y.Z. This is currently only
implemented for Linux.
* the sockaddr_in6 structure changed. The IPv6 working group added a new
field sin6_scope_id. This means that all programs using IPv6 should be
recompiled. Don't expect binary compatibility with previous glibc
versions.
* various conversion modules for IBM character sets contributed by
Masahide Washizawa.
* IA-64 port by Jes Sorensen and HJ Lu.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Compiling the GNU C Library for Linux/ia64
******************************************
Please refer to the file INSTALL in the same directory as you found
this file for general information about configuring and compiling
glibc.
For general inquiries about glibc under Linux/ia64 please use the
following mailing list linux-ia64@linuxia64.org or one of the relevant
glibc mailing lists.
Recommended Tools for Compilation
=================================
In order for glibc-2.2 to build correctly on the ia64 you need at
least the following versions of the GNU tools (the :
* The Cygnus toolchain snapshot for the ia64 as of August 4
including the provided set of patches. It is however recommend
you use the October 24 toolchain snapshot or a more recent version.
OR alternatively you can try the following (the Cygnus toolchain is
the recommended solution):
* GCC and binutils, GAS and GNU LD out of CVS from
sources.redhat.com as of August 28, 2000 or later. The CVS tree
may require special patches to work properly on the ia64.
Configuring and compiling GNU Libc for Linux/ia64
=================================================
The library requires Linux kernel version 2.4.0-test4-000728 or
later to funtion properly. Besides that it support for debug libraries
is currently untested. Hence the following options
are required for configuring the library:
--disable-debug --enable-kernel=2.4.0
It is also important that you make sure the library picks up the
appropriate kernel header files, if you do not have recent enough
kernel headers in /usr/src/linux/include, you should use the
--with-headers=<path> option to specify the location.
As an example I personally use the following options to configure
the library:
--disable-debug
--disable-cvs
--enable-kernel=2.4.0
--host=ia64-linux
--enable-add-ons=yes
--prefix=/usr
--with-headers=/home/jes/linux/include
Good luck
Jes Sorensen <jes@linuxcare.com>,
November 14th, 2000
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Version 2.1.3
* bug fixes
Version 2.1.2
* bug fixes
Version 2.1.1
* New ISO C 9x function _Exit, imaxabs, and imaxdiv are added.
* New xdr functions are added; some rpc functions are now 64bit clean.
* Fixed a number of bugs and memory leaks (especially in NIS+ code).
* Fixed known incompatibilities with glibc 2.0.
* New functions lock64, strchrnul, rawmemchr, getutmp and getutmpx.
* Optimized a number of functions (especially the ELF dynamic loader).
* Update timezone data files.
* lots of charmaps corrections
* some new locale definitions and charmaps
Version 2.1
* Richard Henderson corrected size of struct timeval on Linux/Alpha to
conform to POSIX member type requirements. Symbol versions have been
adjusted as needed within the library, and for direct use by applications,
but there is potential for problems if third-party libraries use
struct timeval as part of their interface. This does not present
a problem for X and other "essential" system libraries.
* An additional locale model to support C++ Standard Library locale
model and probably more was implemented by Ulrich Drepper.
* Eric Youngdale and Ulrich Drepper implemented versioning of objects on
symbol level.
* Miles Bader provided the `argp' function family to support hierachical
command line argument parsing, layered on top of getopt.
* strtod accepts new hexadecimal floating-point format from ISO C 9X.
* printf has two new specifiers %a and %A to print hexadecimal flaoting-point
numbers.
* scanf recognizes the %a and %A format for scanning floating point numbers.
* the new headers <stdint.h> and <inttypes.h> from ISO C 9X provides
information and interfaces for the available integer types.
* about 130 new math functions were added to implement the ISO C9x math
library.
* the new header <complex.h> contains definitions of the complex math
functions from ISO C 9X.
* the new header <tgmath.h> defines generic macros to use complex or
real valued functions.
* Thorsten Kukuk provided an implementation for NIS+, securelevel 0, 1 and 2.
* Andreas Jaeger provided a test suite for the math library.
* Mark Kettenis implemented the utmpx interface and an utmp daemon.
* Ulrich Drepper added character set conversion functions (iconv).
* Optimized string functions have been added.
* The localedata addon is now part of glibc.
* An implementation of profiling shared libraries was added by Ulrich Drepper.
* Thorsten Kukuk and Ulrich Drepper provided an implementation for a caching
daemon for NSS (nscd).
Missing a better place here are some numbers on improvements. Under
Linux 2.1.125 un-tar-ing the kernel sources takes
user system wall
using local files 12.19s 6.88s 22.91s
using NIS 13.92s 8.91s 26.34s
using NIS & nscd 10.37s 7.34s 25.30s
using NIS+ 27.57s 30.37s 640.46s
using NIS+ & nscd 10.25s 7.83s 26.51s
using NIS & old nscd [1] 13.83s 8.32s 29.60s
Keep in mind that non-namelookup related operations dominate above times.
It was just a common complain that using NIS+ unpacking the kernel is
horribly slow.
[1] The old nscd implementation is not available anymore since it was
distributed with glibc up to version 2.0.98 and thus is now replaced.
* Tim Waugh provided an implementation of the POSIX.2 wordexp function family.
* Mark Kettenis provided a Hesiod NSS module.
* The ELF dynamic loader knows how to process dynamic string tokens ($ORIGIN
and $PLATFORM) in RPATHs and similar strings (Ulrich Drepper).
* rcmd can now handle netgroups (Dick Streefland).
* A port to the ARM was contributed by Phil Blundell, Pat Beirne and Scott
Bambrough.
* Support for the IPv6 protocol has been added to the socket API, as per the
latest draft standards.
* Support for Linux 2.2 has been added.
* Interface changes relative to the latest 2.0.x release:
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
addseverity NEW: Unix98
alphasort64 NEW: LFS
argp_err_exit_status NEW: argp, GNU ext
argp_error NEW: argp, GNU ext
argp_failure NEW: argp, GNU ext
argp_help NEW: argp, GNU ext
argp_parse NEW: argp, GNU ext
argp_program_bug_address NEW: argp, GNU ext
argp_program_version NEW: argp, GNU ext
argp_program_version_hook NEW: argp, GNU ext
argp_state_help NEW: argp, GNU ext
argp_usage NEW: argp, GNU ext
authdes_create NEW: Secure RPC
authdes_getucred NEW: Secure RPC
authdes_pk_create NEW: Secure RPC
backtrace NEW: GNU ext.
backtrace_symbols NEW: GNU ext.
backtrace_symbols_fd NEW: GNU ext.
cacos NEW: ISO C 9x
cacosf NEW: ISO C 9x
cacosh NEW: ISO C 9x
cacoshf NEW: ISO C 9x
cacoshl NEW: ISO C 9x
cacosl NEW: ISO C 9x
capget NEW: kernel
capset NEW: kernel
carg NEW: ISO C 9x
cargf NEW: ISO C 9x
cargl NEW: ISO C 9x
casin NEW: ISO C 9x
casinf NEW: ISO C 9x
casinh NEW: ISO C 9x
casinhf NEW: ISO C 9x
casinhl NEW: ISO C 9x
casinl NEW: ISO C 9x
catan NEW: ISO C 9x
catanf NEW: ISO C 9x
catanh NEW: ISO C 9x
catanhf NEW: ISO C 9x
catanhl NEW: ISO C 9x
catanl NEW: ISO C 9x
cbc_crypt NEW: Secure RPC
ccos NEW: ISO C 9x
ccosf NEW: ISO C 9x
ccosh NEW: ISO C 9x
ccoshf NEW: ISO C 9x
ccoshl NEW: ISO C 9x
ccosl NEW: ISO C 9x
cexp NEW: ISO C 9x
cexpf NEW: ISO C 9x
cexpl NEW: ISO C 9x
cimag NEW: ISO C 9x
cimagf NEW: ISO C 9x
cimagl NEW: ISO C 9x
clearerr_locked REMOVED
clntunix_create NEW: sunrpc ext
clog NEW: ISO C 9x
clog10 NEW: ISO C 9x
clog10f NEW: ISO C 9x
clog10l NEW: ISO C 9x
clogf NEW: ISO C 9x
clogl NEW: ISO C 9x
conj NEW: ISO C 9x
conjf NEW: ISO C 9x
conjl NEW: ISO C 9x
cpow NEW: ISO C 9x
cpowf NEW: ISO C 9x
cpowl NEW: ISO C 9x
cproj NEW: ISO C 9x
cprojf NEW: ISO C 9x
cprojl NEW: ISO C 9x
creal NEW: ISO C 9x
crealf NEW: ISO C 9x
creall NEW: ISO C 9x
creat64 NEW: LFS
csin NEW: ISO C 9x
csinf NEW: ISO C 9x
csinh NEW: ISO C 9x
csinhf NEW: ISO C 9x
csinhl NEW: ISO C 9x
csinl NEW: ISO C 9x
csqrt NEW: ISO C 9x
csqrtf NEW: ISO C 9x
csqrtl NEW: ISO C 9x
ctan NEW: ISO C 9x
ctanf NEW: ISO C 9x
ctanh NEW: ISO C 9x
ctanhf NEW: ISO C 9x
ctanhl NEW: ISO C 9x
ctanl NEW: ISO C 9x
des_setparity NEW: Secure RPC
ecb_crypt NEW: Secure RPC
endutxent NEW: Unix98
exp10 NEW: ISO C 9x
exp10f NEW: ISO C 9x
exp10l NEW: ISO C 9x
exp2 NEW: ISO C 9x
exp2f NEW: ISO C 9x
exp2l NEW: ISO C 9x
fattach NEW: STREAMS
fdetach NEW: STREAMS
fdim NEW: ISO C 9x
fdimf NEW: ISO C 9x
fdiml NEW: ISO C 9x
feclearexcept NEW: ISO C 9x
fegetenv NEW: ISO C 9x
fegetexceptflag NEW: ISO C 9x
fegetround NEW: ISO C 9x
feholdexcept NEW: ISO C 9x
feof_locked REMOVED
feraiseexcept NEW: ISO C 9x
ferror_locked REMOVED
fesetenv NEW: ISO C 9x
fesetexceptflag NEW: ISO C 9x
fesetround NEW: ISO C 9x
fetestexcept NEW: ISO C 9x
feupdateenv NEW: ISO C 9x
fflush_locked REMOVED
ffsl NEW: GNU ext.
ffsll NEW: GNU ext.
fgetpos64 NEW: LFS
fgets_unlocked NEW: GNU ext.
fileno_locked REMOVED
fma NEW: ISO C 9x
fmaf NEW: ISO C 9x
fmal NEW: ISO C 9x
fmax NEW: ISO C 9x
fmaxf NEW: ISO C 9x
fmaxl NEW: ISO C 9x
fmin NEW: ISO C 9x
fminf NEW: ISO C 9x
fminl NEW: ISO C 9x
fmtmsg NEW: Unix98
fopen64 NEW: LFS
fputc_locked REMOVED
fputs_unlocked NEW: GNU ext.
fread_unlocked NEW: GNU ext.
freopen64 NEW: LFS
fseeko NEW: Unix98
fsetpos64 NEW: LFS
fstatfs64 NEW: LFS
fstatvfs NEW: Unix98
fstatvfs64 NEW: LFS
ftello NEW: Unix98
ftello64 NEW: LFS
ftruncate64 NEW: LFS
ftw64 NEW: LFS
fwrite_unlocked NEW: GNU ext.
gai_strerror NEW: IPv6
gamma_r REMOVED
gammaf_r REMOVED
gammal_r REMOVED
getchar_locked REMOVED
getdate NEW: Unix98
getdate_err NEW: Unix98
getdate_r NEW: GNU ext.
getmsg NEW: STREAMS
getnameinfo NEW: IPv6
getnetname NEW: Secure RPC
getpmsg NEW: STREAMS
getpt NEW: Unix98 PTY
getrlimit64 NEW: LFS
getutxent NEW: Unix98
getutxid NEW: Unix98
getutxline NEW: Unix98
glob64 NEW: GNU ext.
globfree64 NEW: GNU ext.
gnu_get_libc_release NEW: GNU ext.
gnu_get_libc_version NEW: GNU ext.
grantpt NEW: Unix98 PTY
host2netname NEW: Secure RPC
iconv NEW: iconv
iconv_close NEW: iconv
iconv_open NEW: iconv
if_freenameindex NEW: IPv6
if_indextoname NEW: IPv6
if_nameindex NEW: IPv6
if_nametoindex NEW: IPv6
in6addr_any NEW: IPv6
in6addr_loopback NEW: IPv6
inet6_isipv4mapped NEW: IPv6
isastream NEW: STREAMS
iswblank NEW: GNU ext.
key_decryptsession NEW: Secure RPC
key_decryptsession_pk NEW: Secure RPC
key_encryptsession NEW: Secure RPC
key_encryptsession_pk NEW: Secure RPC
key_gendes NEW: Secure RPC
key_get_conv NEW: Secure RPC
key_secretkey_is_set NEW: Secure RPC
key_setnet NEW: Secure RPC
key_setsecret NEW: Secure RPC
llrint NEW: ISO C 9x
llrintf NEW: ISO C 9x
llrintl NEW: ISO C 9x
llround NEW: ISO C 9x
llroundf NEW: ISO C 9x
llroundl NEW: ISO C 9x
log2 NEW: ISO C 9x
log2f NEW: ISO C 9x