mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-21 20:40:05 +00:00
101 lines
5.0 KiB
Plaintext
101 lines
5.0 KiB
Plaintext
This directory contains the version 2.5 release of the GNU C Library.
|
|
|
|
The GNU C Library is the standard system C library for all GNU systems,
|
|
and is an important part of what makes up a GNU system. It provides the
|
|
system API for all programs written in C and C-compatible languages such
|
|
as C++ and Objective C; the runtime facilities of other programming
|
|
languages use the C library to access the underlying operating system.
|
|
|
|
In GNU/Linux systems, the C library works with the Linux kernel to
|
|
implement the operating system behavior seen by user applications.
|
|
In GNU/Hurd systems, it works with a microkernel and Hurd servers.
|
|
|
|
Version 2.4 is the first release after a long period of development, and
|
|
introduces changes to the API and a new ABI for all configurations. It
|
|
has been tested and deployed in new production systems, but should still
|
|
be considered somewhat experimental. The stable 2.3 release series
|
|
continues to be maintained, and implements a widely-deployed ABI.
|
|
Version 2.3.6 is available, and we will release 2.3.7 with more bug fixes.
|
|
|
|
The GNU C Library implements much of the POSIX.1 functionality in the
|
|
GNU/Hurd system, using configurations i[34567]86-*-gnu.
|
|
|
|
When working with Linux kernels, the GNU C Library version 2.4 is
|
|
intended primarily for use with Linux kernel version 2.6.0 and later.
|
|
We only support using the NPTL implementation of pthreads, which is now
|
|
the default configuration. Most of the C library will continue to work
|
|
on older Linux kernels and many programs will not require a 2.6 kernel
|
|
to run correctly. However, pthreads and related functionality will not
|
|
work at all on old kernels and we do not recommend using glibc 2.4 with
|
|
any Linux kernel prior to 2.6.
|
|
|
|
All Linux kernel versions prior to 2.6.16 are known to have some bugs that
|
|
may cause some of the tests related to pthreads in "make check" to fail.
|
|
If you see such problems, please try the test suite on the most recent
|
|
Linux kernel version that you can use, before pursuing those bugs further.
|
|
|
|
The old LinuxThreads add-on implementation of pthreads for older Linux
|
|
kernels is no longer supported, and we are not distributing it with this
|
|
release. Someone has volunteered to revive its maintenance unofficially
|
|
for at least a short time for the benefit of those using Linux kernels
|
|
older than 2.6, but a working version is not presently available. When
|
|
it is in working condition, we will make it available alongside future
|
|
glibc releases. LinuxThreads will not be supported.
|
|
|
|
The GNU C Library supports these configurations for using Linux kernels:
|
|
|
|
i[34567]86-*-linux-gnu
|
|
x86_64-*-linux-gnu
|
|
powerpc-*-linux-gnu
|
|
powerpc64-*-linux-gnu
|
|
s390-*-linux-gnu
|
|
s390x-*-linux-gnu
|
|
ia64-*-linux-gnu
|
|
sparc*-*-linux-gnu
|
|
sparc64*-*-linux-gnu
|
|
|
|
alpha*-*-linux-gnu Requires Linux 2.6.9 for NPTL
|
|
sh[34]-*-linux-gnu Requires Linux 2.6.11
|
|
|
|
The code for other CPU configurations supported by volunteers outside of
|
|
the core glibc maintenance effort is contained in the separate `ports'
|
|
add-on. You can find glibc-ports-2.5 distributed separately in the
|
|
same place where you got the main glibc distribution files.
|
|
Currently these configurations are known to work using the `ports' add-on:
|
|
|
|
arm-*-linux-gnu Requires Linux 2.6.15 for NPTL, no SMP support
|
|
arm-*-linux-gnueabi Requires Linux 2.6.16-rc1 for NPTL, no SMP
|
|
mips-*-linux-gnu Requires Linux 2.6.12 for NPTL
|
|
mips64-*-linux-gnu Requires Linux 2.6.12 for NPTL
|
|
|
|
The ports distribution also contains code for other configurations that
|
|
do not work or have not been maintained recently, but will be of use to
|
|
anyone trying to make a new configuration work. If you are interested
|
|
in doing a port, please contact the glibc maintainers; see
|
|
http://www.gnu.org/software/libc/ for more information.
|
|
|
|
See the file INSTALL to find out how to configure, build, and install
|
|
the GNU C Library. You might also consider reading the WWW pages for
|
|
the C library at http://www.gnu.org/software/libc/.
|
|
|
|
The GNU C Library is (almost) completely documented by the Texinfo manual
|
|
found in the `manual/' subdirectory. The manual is still being updated
|
|
and contains some known errors and omissions; we regret that we do not
|
|
have the resources to work on the manual as much as we would like. For
|
|
corrections to the manual, please file a bug in the `manual' component,
|
|
following the bug-reporting instructions below. Please be sure to check
|
|
the manual in the current development sources to see if your problem has
|
|
already been corrected.
|
|
|
|
The file NOTES contains a description of the feature-test macros used
|
|
in the GNU C library, explaining how you can tell the library what
|
|
facilities you want it to make available.
|
|
|
|
Please see http://www.gnu.org/software/libc/bugs.html for bug reporting
|
|
information. We are now using the Bugzilla system to track all bug reports.
|
|
This web page gives detailed information on how to report bugs properly.
|
|
|
|
The GNU C Library is free software. See the file COPYING.LIB for copying
|
|
conditions, and LICENSES for notices about a few contributions that require
|
|
these additional notices to be distributed.
|