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- <title>Bootstrapping the C/C++ Front-End</title>
+ <title>Bootstrapping the LLVM C/C++ Front-End</title>
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- Bootstrapping the C/C++ Front-End
+ Bootstrapping the LLVM C/C++ Front-End
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<p>This document is intended to explain the process of building the LLVM
C/C++ front-end, based on GCC 3.4, from source.</p>
<p><b>NOTE:</b> This is currently a somewhat fragile, error-prone
-process, and you should only try to do it if (A) you really, really,
-really can't use the binaries we distribute, and (B) you are a wicked
-good GCC hacker.</p>
+process, and you should <b>only</b> try to do it if:</p>
+
+<ol>
+ <li>you really, really, really can't use the binaries we distribute</li>
+ <li>you need GCC to fix some of the header files on your system</li>
+ <li>you are an elite GCC hacker.</li>
+</ol>
<p>We welcome patches to help make this process simpler.</p>
<li>No inline assembly for position independent code. At the LLVM level,
everything is position independent.</li>
<li>We handle <tt>.init</tt> and <tt>.fini</tt> differently.</li>
+ <li>You may have to disable multilib support in your target. Using multilib
+ support causes the GCC compiler driver to add a lot of "<tt>-L</tt>"
+ options to the link line, which do not relate to LLVM and confuse
+ <tt>gccld</tt>. To disable multilibs, delete any
+ <tt>MULTILIB_OPTIONS</tt> lines from your target files.</li>
<li>Did we mention that we don't support inline assembly? You'll probably
have to add some fixinclude hacks to disable it in the system
headers.</li>
<!-- *********************************************************************** -->
-<hr><font size="-1">
-<address><a href="mailto:gaeke -at- uiuc.edu">Brian Gaeke</a></address>
-Last modified: $Date$
-</font>
+<hr>
+<div class="doc_footer">
+ <address><a href="mailto:gaeke -at- uiuc.edu">Brian Gaeke</a></address>
+ <a href="http://llvm.cs.uiuc.edu">The LLVM Compiler Infrastructure</a>
+ <br>
+ Last modified: $Date$
+</div>
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