| Greg Clayton | 854bb53 | 2010-06-10 02:48:57 +0000 | [diff] [blame^] | 1 | <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
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| 5 | <link href="style.css" rel="stylesheet" type="text/css" />
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| 6 | <title>LLDB Goals</title>
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| 7 | </head>
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| 8 |
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| 9 | <body>
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| 10 | <div class="www_title">
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| 11 | The <strong>LLDB</strong> Debugger
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| 12 | </div>
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| 13 |
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| 14 | <div id="container">
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| 15 | <div id="content">
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| 16 | <div id="left">
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| 17 | <div class="urbangreymenu">
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| 18 | <h1 class="headerbar">General</h1>
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| 19 | <ul>
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| 20 | <li><a href="index.html">About</a></li>
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| 21 | <li><a href="architecture.html">Architecture</a></li>
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| 22 | <li><a href="docs.html">Documentation</a></li>
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| 23 | <li><a href="faq.html">FAQ</a></li>
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| 24 | <li><a href="features.html">Features</a></li>
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| 25 | <li><a href="goals.html">Goals</a></li>
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| 26 | <li><a href="status.html">Status</a></li>
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| 27 | </ul>
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| 28 | </div>
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| 30 | <div class="urbangreymenu">
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| 31 | <h1 class="headerbar">Mailing Lists</h1>
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| 32 | <ul>
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| 33 | <li><a href="http://lists.cs.uiuc.edu/mailman/listinfo/lldb-dev">lldb-dev</a></li>
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| 34 | <li><a href="http://lists.cs.uiuc.edu/mailman/listinfo/lldb-commits">lldb-commits</a></li>
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| 40 | <h1 class="headerbar">Source</h1>
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| 41 | <ul>
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| 42 | <li><a href="download.html">Download</a></li>
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| 43 | <li><a href="http://llvm.org/bugs">Bug Reports</a></li>
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| 44 | <li><a href="http://llvm.org/svn/llvm-project/lldb/trunk">Browse SVN</a></li>
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| 48 | </div>
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| 49 | </div>
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| 50 | <div id="middle">
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| 51 | <div class="post">
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| 52 | <h1 class ="postheader">Goals</h1>
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| 53 | <div class="postcontent">
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| 54 |
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| 55 | <p>The current state of the art in open source debuggers are that
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| 56 | they work in the common cases for C applications, but don't
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| 57 | handle many "hard cases" properly. For example, C++ expression
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| 58 | parsing, handling overloading, templates, multi-threading, and
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| 59 | other non-trivial scenarios all work in some base cases, but
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| 60 | don't work reliably.</p>
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| 61 |
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| 62 | <p>The goal of LLDB is to provide an amazing debugging experience that "just
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| 63 | works". We aim to solve these long-standing problems where debuggers get
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| 64 | confused, so that you can think about debugging your problem, not
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| 65 | about deficiencies in the debugger.</p>
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| 66 |
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| 67 | <p>With a long view, there is no good reason for a debugger to
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| 68 | reinvent its own C/C++ parser, type system, know all the
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| 69 | target calling convention details, implement its own disassembler,
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| 70 | etc. By using the existing libraries vended by the LLVM
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| 71 | project, we believe that many of these problems will be defined
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| 72 | away, and the debugger can focus on important issues like
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| 73 | process control, efficient symbol reading and indexing, thread
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| 74 | management, and other debugger-specific problems.</p>
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| 75 |
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| 76 | <p>Some more specific goals include:</p>
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| 77 |
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| 78 | <ul>
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| 79 | <li>Build libraries for inclusion in IDEs, command line tools, and
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| 80 | other analysis tools</li>
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| 81 | <li>High performance and efficient memory use</li>
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| 82 | <li>Extensible: Python scriptable and use a plug-in architecture</li>
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| 83 | <li>Reuse existing compiler technology where it makes sense</li>
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| 84 | <li>Excellent multi-threaded debugging support</li>
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| 85 | <li>Great support for C, Objective-C and C++</li>
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| 86 | <li>Retargetable to support multiple platforms</li>
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| 87 | <li>Provide a base for debugger research and other innovation</li>
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| 88 | </ul>
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| 89 | </div>
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| 90 | <div class="postfooter"></div>
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