summaryrefslogtreecommitdiff
path: root/docs/uclibc.org/index.html
blob: 9913959bb8baef4aed1ab0fa5f96d3f027063b95 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN" "http://www.w3.org/TR/REC-html40/loose.dtd"> 

<HTML>
<HEAD>
<TITLE>uClibc -- a C library for embedded systems</TITLE>
</HEAD>

<body text="#000000" alink="#660000" link="#660000" bgcolor="#dee2de" vlink="#660000">

<basefont face="lucida, helvetica, arial" size="3">


<CENTER>
<p>

<TABLE BORDER=0 CELLSPACING=1 CELLPADDING=2>
    <TR>
	<td bgcolor="#000000">
	  <FONT FACE="lucida, helvetica" COLOR="#ccccc0">
	      <B>µ&nbsp;C&nbsp;l&nbsp;i&nbsp;b&nbsp;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 than 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, than 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>
    
    <p>
    <li> <b>12 August 2002, uClibc 0.9.14 Released</b>
    <br>

    CodePoet Consulting is slightly less pleased then usual to announce the
    immediate availability of uClibc 0.9.14.  This is, unfortunately, a bugfix
    release intended to fix the couple of dumb things that slipped into the
    previous release.  Version 0.9.13 of uClibc would fail to compile when
    enabling both RPC and Pthreads.  There was also a problem with RPC thread
    local storage (but noone noticed since it didn't compile ;-).  Also, the
    thread locking in exit(), onexit() and atexit() was broken, and wasn't
    actually locking anything.   This release also fixes uClibc's gcc wrapper
    to use crtbeginS.o and crtendS.o when compiling PIC code, fixing a subtle
    bug (that was much less subtle on powerpc).  Finally, this release includes a
    few minor compile warning cleanups.
    <p>
    The 
    <a href="http://www.us.kernel.org/pub/linux/libs/uclibc/Changelog">Changelog</a>
    and <a href="http://www.us.kernel.org/pub/linux/libs/uclibc/uClibc-0.9.14.tar.bz2">source code</a> 
    for this release are available <a href="http://www.us.kernel.org/pub/linux/libs/uclibc/">here</a>.
    <p>
    Have fun!
    <p>
    

    <li> <b>12 August 2002, Native uClibc/gcc-3.1.1 toolchain released</b>
    <br>

    CodePoet Consulting (i.e. Erik) has released an updated native
    uClibc/gcc-3.1.1 toolchain.   This toolchain builds a real gcc cross
    compiler (i.e. not just a wrapper) and creates executables linked vs
    uClibc.  This toolchain has been (briefly) tested as working on x86, arm,
    mips, and arm7tdmi (uClinux).  This toolchain provides a number of
    improvements over previous releases.   In particular, Steven J. Hill found
    and fixes a number of "glibc-isms" in the libstdc++ math support which
    caused a number of math functions to be mapped to the non-standard named
    under GNU libc.   This release also includes greatly improved uClinux
    "elf2flt" support, and it now produces working flat binaries for my
    uClinux/arm7tdmi system.  The native uClibc/gcc-2.95 toolchain will be
    updated in a few days, and will include STLport which will allow that
    toolchain to also provide full C++ support.
    <p>

    This toolchain should make it easy for anyone to build uClibc based 
    applications.  <a href="http://www.us.kernel.org/pub/linux/libs/uclibc/toolchain/">
    Source code can be downloaded here</a>. 
    Be aware that much of the needed source code will actually be downloaded on
    demand when you compile things.  To build the toolchain, simply
    grab the source, edit the Makefile to select where you would like
    the toolchain installed, run 'make', and then go watch TV, eat
    dinner, or visit with your friends while it compiles.  It takes
    about 15 minutes for Erik to compile the gcc-3.1.1 toolchain (w/C++ support)
    on his Athlon XP 1600 (not counting the time it takes to download
    source code).  Your results may vary...
    <p>

    <li> <b>9 August 2002, uClibc now mirrored on kernel.org!</b>
    <br>
    uClibc is now available from the kernel.org mirrors!  This should make
    uClibc downloads much faster.  The kernel.org mirrors will have all 
    uClibc release versions (everything but the daily snapshots).
    Here is a list of all the <a href="http://kernel.org/mirrors/">kernel.org mirror sites</a>.
    Just pick the closest mirror site, and then go to "/pub/linux/libs/uclibc/"
    to download uClibc.  For example, is you live the USA, you can go to
    <a href="http://www.us.kernel.org/pub/linux/libs/uclibc/">
    http://www.us.kernel.org/pub/linux/libs/uclibc/</a> to download the latest 
    uClibc release from a nice fast system.
    <p>
    <p>

    <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>

    <td>
    <!-- Begin PayPal Logo -->
    <form action="https://www.paypal.com/cgi-bin/webscr" method="post">
	<input type="hidden" name="cmd" value="_xclick">
	<input type="hidden" name="business" value="andersen@codepoet.org">
	<input type="hidden" name="item_name" value="Support uClibc">
	<input type="hidden" name="image_url" value="https://codepoet-consulting.com/images/codepoet.png">
	<input type="hidden" name="no_shipping" value="1">
	<input type="image" src="images/donate.png" border="0" name="submit" alt="Make donation using PayPal">
    </form>
    </td>
    <!-- End PayPal Logo -->
    
    </tr>
    </table>

    

<!-- Begin Download section -->

<TR><TD BGCOLOR="#ccccc0" ALIGN=center>
    <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/snapshots/">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>



<!-- End of Table -->

</TD></TR>
</TABLE>
</P>



<!-- Footer -->
<HR>
<TABLE WIDTH="100%">
    <TR>
	<TD>
	    <font size="-1" face="arial, helvetica, sans-serif">
	    Mail all comments, insults, suggestions and bribes to 
	    <a href="mailto:andersen@codepoet.org">Erik Andersen</a><BR>
	    </font>
	</TD>

	<TD>
	    <a href="http://www.vim.org"><img border=0 width=90 height=36
	    src="images/written.in.vi.png" 
	    alt="This site created with the vi editor"></a>
	</TD>

	<TD>
	    <a href="http://www.gimp.org/"><img border=0 width=90 height=36
	    src="images/gfx_by_gimp.png" alt="Graphics by GIMP"></a>
	</TD>

	<TD>
	    <a href="http://www.linuxtoday.com"><img width=90 height=36
	    src="images/ltbutton2.png" alt="Linux Today"></a>
	</TD>

	<TD>
	    <p><a href="http://slashdot.org"><img width=90 height=36
	    src="images/sdsmall.png" alt="Slashdot"></a>
	</TD>

	<TD>
	    <a href="http://freshmeat.net"><img width=90 height=36
	    src="images/fm.mini.png" alt="Freshmeat"></a>
	</TD>

    </TR>
</TABLE>


</CENTER>
</BODY>
</HTML>