2011-03-23 06:39:26 +08:00
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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
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<html xmlns="http://www.w3.org/1999/xhtml">
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<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
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<link href="style.css" rel="stylesheet" type="text/css" />
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2012-01-22 10:55:08 +08:00
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<title>Building LLDB</title>
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2011-03-23 06:39:26 +08:00
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</head>
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<body>
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<div class="www_title">
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The <strong>LLDB</strong> Debugger
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</div>
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<div id="container">
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<div id="content">
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<!--#include virtual="sidebar.incl"-->
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<div id="middle">
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<div class="post">
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<h1 class ="postheader">Building LLDB on Mac OS X</h1>
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<div class="postcontent">
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<p>Building on Mac OS X is as easy as downloading the code and building the Xcode project or workspace:</p>
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2012-08-16 08:08:21 +08:00
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</div>
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<div class="postcontent">
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<h2>Preliminaries</h2>
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<ul>
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<li>XCode 4.3 or newer requires the "Command Line Tools" component (XCode->Preferences->Downloads->Components).</li>
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<li>Mac OS X Lion or newer requires installing <a href="http://swig.org">Swig</a>.</li>
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</ul>
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<h2>Building LLDB</h2>
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2011-03-23 06:39:26 +08:00
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<ul>
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<li><a href="download.html">Download</a> the lldb sources.</li>
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<li>Follow the code signing instructions in <b>lldb/docs/code-signing.txt</b></li>
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<li>In Xcode 3.x: <b>lldb/lldb.xcodeproj</b>, select the <b>lldb-tool</b> target, and build.</li>
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<li>In Xcode 4.x: <b>lldb/lldb.xcworkspace</b>, select the <b>lldb-tool</b> scheme, and build.</li>
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</ul>
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</div>
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<div class="postfooter"></div>
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</div>
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<div class="post">
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<h1 class ="postheader">Building LLDB on Linux</h1>
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<div class="postcontent">
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<p>This document describes the steps needed to compile LLDB on most Linux systems.</a></p>
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</div>
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<div class="postcontent">
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<h2>Preliminaries</h2>
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<p>LLDB relies on many of the technologies developed by the larger LLVM project.
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In particular, it requires both Clang and LLVM itself in order to build. Due to
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this tight integration the <em>Getting Started</em> guides for both of these projects
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come as prerequisite reading:</p>
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<ul>
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<li><a href="http://llvm.org/docs/GettingStarted.html">LLVM</a></li>
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<li><a href="http://clang.llvm.org/get_started.html">Clang</a></li>
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</ul>
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<p>In addition to any dependencies required by LLVM and Clang, LLDB needs a few
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development packages that may also need to be installed depending on your
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system. The current list of dependencies are:</p>
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<ul>
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<li><a href="http://swig.org">Swig</a></li>
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<li><a href="http://www.thrysoee.dk/editline">libedit</a></li>
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<li><a href="http://www.python.org">Python</a></li>
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</ul>
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2012-10-16 04:39:39 +08:00
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<p>So for example, on a Fedora system one might run:</p>
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2011-03-23 06:39:26 +08:00
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<code>> yum install swig python-devel libedit-devel</code>
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2012-10-16 04:39:39 +08:00
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<p>On an Ubuntu system one might run:</p>
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<code>> sudo apt-get install swig python-dev libedit-dev </code>
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<p>If building using GCC instead of Clang, GCC 4.6.2 or newer is required.</p>
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2012-08-16 08:08:21 +08:00
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<ul>
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<li><a href="http://gcc.gnu.org">GCC</a></li>
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</ul>
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2011-03-23 06:39:26 +08:00
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<h2 >Building LLDB</h2>
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<p>We first need to checkout the source trees into the appropriate locations. Both
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Clang and LLDB build as subprojects of LLVM. This means we will be checking out
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the source for both Clang and LLDB into the <tt>tools</tt> subdirectory of LLVM. We
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will be setting up a directory hierarchy looking something like this:</p>
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<p>
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<pre><tt>
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llvm
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`-- tools
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+-- clang
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`-- lldb
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</tt></pre>
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</p>
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<p>For reference, we will call the root of the LLVM project tree <tt>$llvm</tt>, and the
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roots of the Clang and LLDB source trees <tt>$clang</tt> and <tt>$lldb</tt> respectively.</p>
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<p>Change to the directory where you want to do development work and checkout LLVM:</p>
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<code>> svn co http://llvm.org/svn/llvm-project/llvm/trunk llvm</code>
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<p>Now switch to LLVM’s tools subdirectory and checkout both Clang and LLDB:</p>
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<code>> cd $llvm/tools
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<br>> svn co http://llvm.org/svn/llvm-project/cfe/trunk clang
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<br>> svn co http://llvm.org/svn/llvm-project/lldb/trunk lldb
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</code>
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2012-10-16 04:39:39 +08:00
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<p>In general, building the LLDB trunk revision requires trunk revisions of both
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LLVM and Clang.
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2011-03-23 06:39:26 +08:00
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<p>It is highly recommended that you build the system out of tree. Create a second
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build directory and configure the LLVM project tree to your specifications as
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2012-10-16 04:39:39 +08:00
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outlined in LLVM’s <em>Getting Started Guide</em>. A typical build procedure
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might be:</p>
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2011-03-23 06:39:26 +08:00
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<code>> cd $llvm/..
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<br>> mkdir build
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<br>> cd build
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2012-11-11 02:09:36 +08:00
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<br>> $llvm/configure --enable-cxx11 --enable-libcpp
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<br>> make </code>
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2011-03-23 06:39:26 +08:00
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<p>Note that once both LLVM and Clang have been configured and built it is not
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necessary to perform a top-level <tt>make</tt> to rebuild changes made only to LLDB.
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2012-10-16 04:39:39 +08:00
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You can run <tt>make</tt> from the <tt>build/tools/lldb</tt> subdirectory as well. If your
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compiler doesn't support libc++, you may need to tweak or remove the last
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parameter to the configure script.</p>
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2011-03-23 06:39:26 +08:00
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<h2>Additional Notes</h2>
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2012-11-13 06:34:24 +08:00
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<p>LLDB has a Python scripting capability and supplies its own Python module,
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2012-10-16 04:39:39 +08:00
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<tt>lldb</tt>, built alongside the <tt>lldb</tt> binary. Python needs to know where to
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look for this module when LLDB starts up. To tell python the location of LLDB, set
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<tt>PYTHONPATH</tt> environment variable.
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<p>In bash with a <tt>Debug+Asserts</tt> build (the default if configure is invoked
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like in the example on this page) one might run:</p>
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<code>> export PYTHONPATH=$llvm/build/Debug+Asserts/lib/python2.7/site-packages</code>
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<p>If you used different configure flags, or have a different version of python,
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you may need to adjust the above to suit your needs. To test that the lldb python module
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is built correctly and is available to Python, run:</p>
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<code>> python -c 'import lldb'</code></p>
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2011-03-23 06:39:26 +08:00
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</div>
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<div class="postfooter"></div>
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</div>
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</div>
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</div>
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</div>
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</body>
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2012-10-16 04:39:39 +08:00
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</html>
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