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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73449 91177308-0d34-0410-b5e6-96231b3b80d8
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Mikhail Glushenkov
2009-06-16 00:14:20 +00:00
parent 530f399743
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docs/CompilerDriverTutorial.html
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@ -50,21 +50,25 @@ command-line LLVMC usage, refer to the <tt class="docutils literal"><span class=
<h1><a class="toc-backref" href="#id3">Using LLVMC to generate toolchain drivers</a></h1>
<p>LLVMC plugins are written mostly using <a class="reference external" href="http://llvm.cs.uiuc.edu/docs/TableGenFundamentals.html">TableGen</a>, so you need to
be familiar with it to get anything done.</p>
<p>Start by compiling <tt class="docutils literal"><span class="pre">plugins/Simple/Simple.td</span></tt>, which is a primitive
wrapper for <tt class="docutils literal"><span class="pre">gcc</span></tt>:</p>
<p>Start by compiling <tt class="docutils literal"><span class="pre">example/Simple</span></tt>, which is a primitive wrapper for
<tt class="docutils literal"><span class="pre">gcc</span></tt>:</p>
<pre class="literal-block">
$ cd $LLVM_DIR/tools/llvmc
$ make DRIVER_NAME=mygcc BUILTIN_PLUGINS=Simple
# NB: A less verbose way to compile standalone LLVMC-based drivers is
# described in the reference manual.
$ make LLVMC_BASED_DRIVER_NAME=mygcc LLVMC_BUILTIN_PLUGINS=Simple
$ cat &gt; hello.c
[...]
$ mygcc hello.c
$ ./hello.out
Hello
</pre>
<p>Here we link our plugin with the LLVMC core statically to form an
executable file called <tt class="docutils literal"><span class="pre">mygcc</span></tt>. It is also possible to build our
plugin as a standalone dynamic library; this is described in the
reference manual.</p>
<p>Here we link our plugin with the LLVMC core statically to form an executable
file called <tt class="docutils literal"><span class="pre">mygcc</span></tt>. It is also possible to build our plugin as a dynamic
library to be loaded by the <tt class="docutils literal"><span class="pre">llvmc</span></tt> executable (or any other LLVMC-based
standalone driver); this is described in the reference manual.</p>
<p>Contents of the file <tt class="docutils literal"><span class="pre">Simple.td</span></tt> look like this:</p>
<pre class="literal-block">
// Include common definitions