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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN" "http://www.w3.org/TR/REC-html40/loose.dtd">
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<HEAD>
<TITLE>uClibc -- a C library for embedded systems</TITLE>
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<TABLE BORDER=0 CELLSPACING=1 CELLPADDING=2>
<TR>
<td bgcolor="#000000">
<FONT FACE="lucida, helvetica" COLOR="#ccccc0">
<B>µ C l i b c</B>
</FONT>
</TD>
</TR>
</TABLE>
<p>
<!-- Begin Introduction section -->
<TABLE WIDTH=95% CELLSPACING=1 CELLPADDING=4 BORDER=1>
<TR><TD BGCOLOR="#ccccc0" ALIGN=center>
<A NAME="intro"> <BIG><B>
uClibc -- a C library for embedded systems
</font>
</A></B></BIG>
</TD></TR>
<TR><TD BGCOLOR="#eeeee0">
<a href="http://www.uclibc.org">uClibc</a> (aka µClibc/pronounced
yew-see-lib-see) is a C library for developing embedded Linux systems.
It is much smaller then the
<a href="http://www.gnu.org/software/libc/libc.html">GNU C Library</a>,
but nearly all applications supported by glibc also work perfectly with
uClibc. Porting applications from glibc to uClibc typically involves
just recompiling the source code. uClibc even supports shared libraries
and threading. It currently runs on <a href="http://kernel.org/">standard Linux</a>
and <a href="http://www.uclinux.org">MMU-less (also known as µClinux)</a>
systems with support for alpha, ARM, i386, i960, h8300, m68k, mips/mipsel,
PowerPC, SH, SPARC, and v850 processors.
<p>
If you are building an embedded Linux system and you find that glibc is
eating up too much space, you should consider using uClibc. If you are
building a huge fileserver with 12 Terabytes of storage, then using
glibc may be a better choice...
<p>
uClibc is maintained by
<a href="http://www.codepoet.org/andersen/erik/erik.html">Erik Andersen</a>
and is licensed under the
<a href="http://www.gnu.org/copyleft/lgpl.html">GNU LIBRARY GENERAL PUBLIC LICENSE</a>
. This license allows you to make closed source commercial applications using
uClibc (Please consider sharing some of the money you make ;-). You do not need
to give away all your source code just because you use uClibc and/or run on Linux.
<p>
<h3>Mailing List Information</h3>
uClibc has a <a href="/lists/uclibc/">mailing list</a>.<br>
To subscribe, go and visit
<a href="http://www.uclibc.org/mailman/listinfo/uclibc">this page</a>.
<p>
<h3>Frequently Asked Questions</h3>
You might want to take a look at the
<a href="FAQ.html">list of Frequently Asked Questions</a>
before asking questions on the mailing list...
<h3>Working Applications List</h3>
These days, pretty much everything compiles with uClibc. This
is a <a href="uClibc-apps.html">list of applications</a> that are known
to work just fine with uClibc. Since most applications work just
fine with uClibc, we are especially interested in knowing about any
applications that either <em>do not compile</em> or <em>do not work</em>
properly with uClibc. Submissions are welcome!
<!-- Begin Latest News section -->
<TR><TD BGCOLOR="#ccccc0" ALIGN=center>
<A NAME="news">
<BIG><B>
Latest News</A>
</B></BIG>
</A>
</TD></TR>
<TR><TD BGCOLOR="#eeeee0">
<ul>
<li> <b>20 June 2002, uClibc 0.9.12 Released</b>
<br>
o Add full shared library support for mips, thanks
to a lot of hard work from Steven J. Hill
o i960 architecture support, thanks to Martin Proulx
o Fixes shared library support for powerpc
o Fixes for mmu-less systems
o Much improved thread locking and reentrance.
o More gcc wrapper updates. XFree86 really does link
this time around. It still didn't last time.
o Libcrypt now passes conformance tests
o Nearly complete locale supporti thanks to a lot
of hard work by Manuel Novoa III. This stuff is
_way_ smaller than glibc's
o Completely new time handling functions
o Lots of other bug fixes and cleanups.
CodePoet Consulting is pleased to announce the immediate availability of
uClibc 0.9.12. This release adds an i960 port, an initial alpha port,
fullly working mips shared library support, shared library support fixes
for on powerpc, and many other improvements. One very exciting new feature
is nearly complete locale support, thanks to a lot of hard work by Manuel
Novoa III. uClibc's locale support is <em>much</em> smaller than glibc's,
though it is also slightly less flexible. This release was delayed by a
month due to the arrival of a new baby at Erik's house. For those that
have been anxiously waiting, this release should certainly be worth the
wait. Have fun!
<p>
The <a href="downloads/Changelog">Changelog</a>
and <a href="downloads/uClibc-0.9.12.tar.bz2">source code</a>
for this release are available <a href="downloads/">here</a>.
<li> <b>28 May 2002, Native uClibc/gcc-3.1 toolchain</b>
<br>
CodePoet Consulting has released source code and a Makefile to build a
gcc-3.1 toolchain that natively targets uClibc. Additionally, the
gcc-3.0.4 and gcc-2.95 toolchains have also been updated. These toolchains
make it easy to build uClibc based applications. Source code can be
downloaded <a href="downloads/toolchain/">here</a> and is now much smaller,
since much of the needed binutils and gcc source code is now downloaded on
demand. To build the toolchain, simply grab the source, edit the Makefile
to select where you would like the toolchain installed, and then run 'make'
and wait for it to compile.
<p>
<p><li> <b>10 April 2002, uClibc 0.9.11 Released</b>
<br>
CodePoet Consulting is pleased to announce the immediate availability of
uClibc 0.9.11. This release is primarily focused on fixing the issues that
have turned up since the last release. Several bugs in the gcc wrapper
have been fixed, allowing applications such as iproute2 and XFree86 to link properly.
Large file support has been improved, and a thread locking bug was
fixed that could cause s*printf calls to deadlock when threading was
enabled. Several bugs were also fixed with the powerpc, h8300, m68k,
sparc, and mips architecture support. Many additional applications now
compile and run perfectly and have been added to the <a
href="uClibc-apps.html">working applications list</a> .
<p>
The <a href="downloads/Changelog">Changelog</a>
and <a href="downloads/uClibc-0.9.11.tar.bz2">source code</a>
for this release are available <a href="downloads/">here</a>.
<p> <li> <b>Old News</b>
<br>
<a href="old-news.html">Click here to read older news</a>.
<p>
</ul>
<!-- Begin Sponsors section -->
<TR><TD BGCOLOR="#ccccc0" ALIGN=center>
<A NAME="sponsors"><BIG><B>
Sponsors
</A></B></BIG>
</TD></TR>
<tr><td bgcolor="#EEEEE0">
Please visit our sponsors and thank them for their support! They have
provided money, equipment, bandwidth, etc. Next time you need help with a
project, consider these fine companies! Several individuals have also
contributed (If you have contributed and would like your name added here,
just email Erik and let him know).
<ul>
<li><a href="http://opensource.se/">opensource.se</a><br>
Embedded open source consulting in Europe.</li>
<li><a href="http://i-netinnovations.com/">http://i-netinnovations.com/</a><br>
Web hosting (currently hosting busybox.net and uclibc.org)</li>
<li><a href="http://www.lineo.com">Lineo</a><br>
Embedded Linux development and services.</li>
<li><a href="http://www.codepoet-consulting.com">Codepoet Consulting</a><br>
Custom Linux, embedded Linux, BusyBox, and uClibc development.</li>
</ul>
<table CELLSPACING=6 CELLPADDING=6 BORDER=0><tr>
<td>
Do you like uClibc? Do you need support? Do you need some feature
added? Then why not help out? We are happy to accept donations
(such as bandwidth, mirrors sites, and hardware for the various
architectures). We can also provide support contracts, and implement
funded feature requests. To contribute, you can either click on the
Donate image to donate using PayPal, or you can contact Erik at
<a href="http://codepoet-consulting.com/">CodePoet Consulting</a>
(we have a credit card machine so you can avoid PayPal if you wish).
</td>
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<!-- Begin Download section -->
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<A NAME="download"><BIG><B>
Download
</A></B></BIG>
</TD></TR>
<TR><TD BGCOLOR="#eeeee0">
<ul>
<li> Source for the latest release can always be downloaded from
<a href="downloads/">http://www.uclibc.org/downloads</a>
<li> A new snapshot of the source is made daily and is available
<a href="downloads/snapshot/">here</a>
<li> uClibc has its own publically browsable <a href="/cgi-bin/cvsweb/uClibc/">CVS tree</a>
with <a href="cvs_anon.html">anonymous CVS access</a>, and for those that are actively
contributing there is even <a href="cvs_write.html">CVS write access</a>.
</ul>
<!-- Begin Links section -->
<TR><TD BGCOLOR="#ccccc0" ALIGN=center>
<A NAME="links">
<BIG><B>
Other Open Source C libraries:
</A>
</B></BIG>
</A>
</TD></TR>
<TR><TD BGCOLOR="#eeeee0">
<ul>
<li><a href="http://www.gnu.org/software/libc/libc.html">GNU C Library (aka glibc)</a>
<li> <a href="http://www.k9wk.com/cdoc.html">Al's FREE C Runtime Library</a>
<li><a href="http://www.fefe.de/dietlibc/">diet libc </a>
<li>the <a href="http://www.cs.vu.nl/~ast/minix.html">minix</a>
<a href="http://www.cs.vu.nl/cgi-bin/raw/pub/minix/2.0.0/src.tar"
>C library</a>
<li> <a href="http://sources.redhat.com/newlib/">newlib</a>
<li>and there is a
<a href="ftp://sourceware.cygnus.com/pub/ecos/">C library</a>, for
<a href="http://sources.redhat.com/ecos/">eCos</a> as well.
<ul>
<!-- Begin Links section -->
<TR><TD BGCOLOR="#ccccc0" ALIGN=center>
<A NAME="links">
<BIG><B>
Links to other useful stuff
</A>
</B></BIG>
</A>
</TD></TR>
<TR><TD BGCOLOR="#eeeee0">
<ul>
<li> <a href="http://www.uclibc.org/">The uClibc home page</a>
<p>
<li> <a href="http://busybox.net/">BusyBox</a>
<p>
<li> <a href="http://udhcp.busybox.net/">udhcp</a>
<p>
<li> <a href="http://www.uclinux.org/">The uClinux home page</a>
<p>
<li> <a href="http://cvs.uclinux.org/">The uClinux CVS repository</a>
<p>
<li> <a href="http://codepoet-consulting.com/">CodePoet Consulting</a>
<p>
</ul>
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