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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73597 91177308-0d34-0410-b5e6-96231b3b80d8
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Mikhail Glushenkov 2009-06-17 02:56:48 +00:00
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22
docs/CompilerDriver.html
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@ -57,7 +57,7 @@ abstract graph. The structure of this graph is completely determined
by plugins, which can be either statically or dynamically linked. This by plugins, which can be either statically or dynamically linked. This
makes it possible to easily adapt LLVMC for other purposes - for makes it possible to easily adapt LLVMC for other purposes - for
example, as a build tool for game resources.</p> example, as a build tool for game resources.</p>
<p>Because LLVMC employs <a class="reference external" href="http://llvm.cs.uiuc.edu/docs/TableGenFundamentals.html">TableGen</a> as its configuration language, you <p>Because LLVMC employs <a class="reference external" href="http://llvm.org/docs/TableGenFundamentals.html">TableGen</a> as its configuration language, you
need to be familiar with it to customize LLVMC.</p> need to be familiar with it to customize LLVMC.</p>
</div> </div>
<div class="section" id="compiling-with-llvmc"> <div class="section" id="compiling-with-llvmc">
@ -71,12 +71,12 @@ $ llvmc -O3 -Wall hello.cpp
$ ./a.out $ ./a.out
hello hello
</pre> </pre>
<p>One nice feature of LLVMC is that one doesn't have to distinguish <p>One nice feature of LLVMC is that one doesn't have to distinguish between
between different compilers for different languages (think <tt class="docutils literal"><span class="pre">g++</span></tt> and different compilers for different languages (think <tt class="docutils literal"><span class="pre">g++</span></tt> vs. <tt class="docutils literal"><span class="pre">gcc</span></tt>) - the
<tt class="docutils literal"><span class="pre">gcc</span></tt>) - the right toolchain is chosen automatically based on input right toolchain is chosen automatically based on input language names (which
language names (which are, in turn, determined from file are, in turn, determined from file extensions). If you want to force files
extensions). If you want to force files ending with &quot;.c&quot; to compile as ending with &quot;.c&quot; to compile as C++, use the <tt class="docutils literal"><span class="pre">-x</span></tt> option, just like you would
C++, use the <tt class="docutils literal"><span class="pre">-x</span></tt> option, just like you would do it with <tt class="docutils literal"><span class="pre">gcc</span></tt>:</p> do it with <tt class="docutils literal"><span class="pre">gcc</span></tt>:</p>
<pre class="literal-block"> <pre class="literal-block">
$ # hello.c is really a C++ file $ # hello.c is really a C++ file
$ llvmc -x c++ hello.c $ llvmc -x c++ hello.c
@ -158,13 +158,13 @@ $ mv Simple.td MyPlugin.td
</pre> </pre>
<p>To build your plugin as a dynamic library, just <tt class="docutils literal"><span class="pre">cd</span></tt> to its source <p>To build your plugin as a dynamic library, just <tt class="docutils literal"><span class="pre">cd</span></tt> to its source
directory and run <tt class="docutils literal"><span class="pre">make</span></tt>. The resulting file will be called directory and run <tt class="docutils literal"><span class="pre">make</span></tt>. The resulting file will be called
<tt class="docutils literal"><span class="pre">LLVMC$(LLVMC_PLUGIN).$(DLL_EXTENSION)</span></tt> (in our case, <tt class="docutils literal"><span class="pre">plugin_llvmc_$(LLVMC_PLUGIN).$(DLL_EXTENSION)</span></tt> (in our case,
<tt class="docutils literal"><span class="pre">LLVMCMyPlugin.so</span></tt>). This library can be then loaded in with the <tt class="docutils literal"><span class="pre">plugin_llvmc_MyPlugin.so</span></tt>). This library can be then loaded in with the
<tt class="docutils literal"><span class="pre">-load</span></tt> option. Example:</p> <tt class="docutils literal"><span class="pre">-load</span></tt> option. Example:</p>
<pre class="literal-block"> <pre class="literal-block">
$ cd $LLVMC_DIR/plugins/Simple $ cd $LLVMC_DIR/plugins/Simple
$ make $ make
$ llvmc -load $LLVM_DIR/Release/lib/LLVMCSimple.so $ llvmc -load $LLVM_DIR/Release/lib/plugin_llvmc_Simple.so
</pre> </pre>
</div> </div>
<div class="section" id="compiling-standalone-llvmc-based-drivers"> <div class="section" id="compiling-standalone-llvmc-based-drivers">
@ -197,7 +197,7 @@ $ make
$ cd $LLVMC_DIR $ cd $LLVMC_DIR
$ make LLVMC_BUILTIN_PLUGINS=MyPlugin LLVMC_BASED_DRIVER_NAME=mydriver $ make LLVMC_BUILTIN_PLUGINS=MyPlugin LLVMC_BASED_DRIVER_NAME=mydriver
</pre> </pre>
<p>This works with both srcdir==objdir and srcdir != objdir, but assumes that the <p>This works with both srcdir == objdir and srcdir != objdir, but assumes that the
plugin source directory was placed under <tt class="docutils literal"><span class="pre">$LLVMC_DIR/plugins</span></tt>.</p> plugin source directory was placed under <tt class="docutils literal"><span class="pre">$LLVMC_DIR/plugins</span></tt>.</p>
<p>Sometimes, you will want a 'bare-bones' version of LLVMC that has no <p>Sometimes, you will want a 'bare-bones' version of LLVMC that has no
built-in plugins. It can be compiled with the following command:</p> built-in plugins. It can be compiled with the following command:</p>

3
docs/CompilerDriverTutorial.html
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@ -48,12 +48,13 @@ command-line LLVMC usage, refer to the <tt class="docutils literal"><span class=
</div> </div>
<div class="section" id="using-llvmc-to-generate-toolchain-drivers"> <div class="section" id="using-llvmc-to-generate-toolchain-drivers">
<h1><a class="toc-backref" href="#id3">Using LLVMC to generate toolchain drivers</a></h1> <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 <p>LLVMC plugins are written mostly using <a class="reference external" href="http://llvm.org/docs/TableGenFundamentals.html">TableGen</a>, so you need to
be familiar with it to get anything done.</p> be familiar with it to get anything done.</p>
<p>Start by compiling <tt class="docutils literal"><span class="pre">example/Simple</span></tt>, which is a primitive wrapper for <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> <tt class="docutils literal"><span class="pre">gcc</span></tt>:</p>
<pre class="literal-block"> <pre class="literal-block">
$ cd $LLVM_DIR/tools/llvmc $ cd $LLVM_DIR/tools/llvmc
$ cp -r example/Simple plugins/Simple
# NB: A less verbose way to compile standalone LLVMC-based drivers is # NB: A less verbose way to compile standalone LLVMC-based drivers is
# described in the reference manual. # described in the reference manual.