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| <title>Building LLDB</title> | |
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| <div class="www_title"> | |
| The <strong>LLDB</strong> Debugger | |
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| <h1 class ="postheader">Continuous Integraton</h1> | |
| <div class="postcontent"> | |
| <p> The following LLVM buildbots build and test LLDB trunk: | |
| <ul> | |
| <li> <a href="http://lab.llvm.org:8011/builders/lldb-x86_64-debian-clang">LLDB Linux x86_64 build with Clang (automake)</a> | |
| <li> <a href="http://lab.llvm.org:8011/builders/lldb-x86_64-linux">LLDB Linux x86_64 build with GCC 4.6 (automake)</a> | |
| <li> <a href="http://lab.llvm.org:8011/builders/lldb-x86_64-darwin11">LLDB Mac OS X x86_64 build with Clang (XCode)</a> | |
| </ul> | |
| </div> | |
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| <h1 class ="postheader">Building LLDB on Mac OS X</h1> | |
| <div class="postcontent"> | |
| <p>Building on Mac OS X is as easy as downloading the code and building the Xcode project or workspace:</p> | |
| </div> | |
| <div class="postcontent"> | |
| <h2>Preliminaries</h2> | |
| <ul> | |
| <li>XCode 4.3 or newer requires the "Command Line Tools" component (XCode->Preferences->Downloads->Components).</li> | |
| <li>Mac OS X Lion or newer requires installing <a href="http://swig.org">Swig</a>.</li> | |
| </ul> | |
| <h2>Building LLDB</h2> | |
| <ul> | |
| <li><a href="download.html">Download</a> the lldb sources.</li> | |
| <li>Follow the code signing instructions in <b>lldb/docs/code-signing.txt</b></li> | |
| <li>In Xcode 3.x: <b>lldb/lldb.xcodeproj</b>, select the <b>lldb-tool</b> target, and build.</li> | |
| <li>In Xcode 4.x: <b>lldb/lldb.xcworkspace</b>, select the <b>lldb-tool</b> scheme, and build.</li> | |
| </ul> | |
| </div> | |
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| <h1 class ="postheader">Building LLDB on Linux</h1> | |
| <div class="postcontent"> | |
| <p>This document describes the steps needed to compile LLDB on most Linux systems.</a></p> | |
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| <div class="postcontent"> | |
| <h2>Preliminaries</h2> | |
| <p>LLDB relies on many of the technologies developed by the larger LLVM project. | |
| In particular, it requires both Clang and LLVM itself in order to build. Due to | |
| this tight integration the <em>Getting Started</em> guides for both of these projects | |
| come as prerequisite reading:</p> | |
| <ul> | |
| <li><a href="http://llvm.org/docs/GettingStarted.html">LLVM</a></li> | |
| <li><a href="http://clang.llvm.org/get_started.html">Clang</a></li> | |
| </ul> | |
| <p>Supported compilers for building LLDB on Linux include:</p> | |
| <ul> | |
| <li>Clang 3.2</li> | |
| <li><a href="http://gcc.gnu.org">GCC</a> 4.6.2 (later versions should work as well)</li> | |
| </ul> | |
| <p>It is recommended to use libstdc++ 4.6 (or higher) to build LLDB on Linux, but using libc++ is also known to work.</p> | |
| <p>In addition to any dependencies required by LLVM and Clang, LLDB needs a few | |
| development packages that may also need to be installed depending on your | |
| system. The current list of dependencies are:</p> | |
| <ul> | |
| <li><a href="http://swig.org">Swig</a></li> | |
| <li><a href="http://www.thrysoee.dk/editline">libedit</a></li> | |
| <li><a href="http://www.python.org">Python</a></li> | |
| </ul> | |
| <p>So for example, on a Fedora system one might run:</p> | |
| <code>> yum install swig python-devel libedit-devel</code> | |
| <p>On an Ubuntu system one might run:</p> | |
| <code>> sudo apt-get install swig python-dev libedit-dev </code> | |
| <h2 >Building LLDB</h2> | |
| <p>We first need to checkout the source trees into the appropriate locations. Both | |
| Clang and LLDB build as subprojects of LLVM. This means we will be checking out | |
| the source for both Clang and LLDB into the <tt>tools</tt> subdirectory of LLVM. We | |
| will be setting up a directory hierarchy looking something like this:</p> | |
| <p> | |
| <pre><tt> | |
| llvm | |
| | | |
| `-- tools | |
| | | |
| +-- clang | |
| | | |
| `-- lldb | |
| </tt></pre> | |
| </p> | |
| <p>For reference, we will call the root of the LLVM project tree <tt>$llvm</tt>, and the | |
| roots of the Clang and LLDB source trees <tt>$clang</tt> and <tt>$lldb</tt> respectively.</p> | |
| <p>Change to the directory where you want to do development work and checkout LLVM:</p> | |
| <code>> svn co http://llvm.org/svn/llvm-project/llvm/trunk llvm</code> | |
| <p>Now switch to LLVM’s tools subdirectory and checkout both Clang and LLDB:</p> | |
| <code>> cd $llvm/tools | |
| <br>> svn co http://llvm.org/svn/llvm-project/cfe/trunk clang | |
| <br>> svn co http://llvm.org/svn/llvm-project/lldb/trunk lldb | |
| </code> | |
| <p>In general, building the LLDB trunk revision requires trunk revisions of both | |
| LLVM and Clang. | |
| <p>It is highly recommended that you build the system out of tree. Create a second | |
| build directory and configure the LLVM project tree to your specifications as | |
| outlined in LLVM’s <em>Getting Started Guide</em>. A typical build procedure | |
| might be:</p> | |
| <code>> cd $llvm/.. | |
| <br>> mkdir build | |
| <br>> cd build | |
| </code> | |
| <h2>To build with CMake</h2> | |
| <p>Using CMake is documented on the <a href="http://llvm.org/docs/CMake.html">Building LLVM with CMake</a> | |
| page. Building LLDB is possible using one of the following generators: | |
| </p> | |
| <ul> | |
| <li> Ninja </li> | |
| <li> Unix Makefiles </li> | |
| </ul> | |
| <h3>Using CMake + Ninja</h3> | |
| <p>Ninja is the fastest way to build LLDB! In order to use ninja, you need to have recent versions of CMake and | |
| ninja on your system. To build using ninja: | |
| </p> | |
| <code> | |
| <br>> cmake -C .. -G Ninja | |
| <br>> ninja lldb | |
| <br>> ninja check-lldb | |
| </code> | |
| <h3>Using CMake + Unix Makefiles</h3> | |
| <p>If you do not have Ninja, you can still use CMake to generate Unix Makefiles that build LLDB:</p> | |
| <code> | |
| <br>> cmake -C .. | |
| <br>> make lldb | |
| <br>> make check-lldb | |
| </code> | |
| <h2>To build with autoconf</h2> | |
| <p>If you do not have CMake, it is still possible to build LLDB using the autoconf build system. If you are using | |
| Clang or GCC 4.7+, run:</p> | |
| <code> | |
| <br>> $llvm/configure --enable-cxx11 | |
| <br>> make </code> | |
| <p>Or, if you are using a version of GCC that does not support the <tt>-std=c++11</tt> option:</p> | |
| <code> | |
| <br>> $llvm/configure | |
| <br>> make CXXFLAGS=-std=c++0x</code> | |
| <p> To run the LLDB test suite, run:</p> | |
| <code> | |
| <br>> make -C tools/lldb/test</code> | |
| <p>Note that once both LLVM and Clang have been configured and built it is not | |
| necessary to perform a top-level <tt>make</tt> to rebuild changes made only to LLDB. | |
| You can run <tt>make</tt> from the <tt>build/tools/lldb</tt> subdirectory as well.</p> | |
| <p> If you wish to build with libc++ instead of libstdc++ (the default), run configure with the | |
| <tt>--enable-libcpp</tt> flag.</p> | |
| <p> If you wish to build a release version of LLDB, run configure with the <tt>--enable-optimized</tt> flag.</p> | |
| <h2>Additional Notes</h2> | |
| <p>LLDB has a Python scripting capability and supplies its own Python module named <tt>lldb</tt>. | |
| If a script is run inside the command line <tt>lldb</tt> application, the Python module | |
| is made available automatically. However, if a script is to be run by a Python interpreter | |
| outside the command line application, the <tt>PYTHONPATH</tt> environment variable can be used | |
| to let the Python interpreter find the <tt>lldb</tt> module. | |
| <p>The correct path can be obtained by invoking the command line <tt>lldb</tt> tool with the -P flag:</p> | |
| <code>> export PYTHONPATH=`$llvm/build/Debug+Asserts/bin/lldb -P`</code> | |
| <p>If you used a different build directory or made a release build, you may need to adjust the | |
| above to suit your needs. To test that the lldb Python module | |
| is built correctly and is available to the default Python interpreter, run:</p> | |
| <code>> python -c 'import lldb'</code></p> | |
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