Modular Debugger

<h2 id="history">History</h2>
<p>The mdb project was started in 1997 by <a href="/facts/Mike_Shapiro_(programmer)/e8hUbjHr">Mike Shapiro</a> and others when the Solaris operating system was adding support for 64-bit architectures. Up until that point, Solaris was using the aging <a href="/facts/Advanced_Debugger/Dl49m1Th">adb</a> debugger developed by <a href="/facts/Steve_Bourne/x7p7ALJH">Steve Bourne</a> (initially for <a href="/facts/Seventh_Edition_UNIX/ju5nRs7k">Seventh Edition UNIX</a><a class="footnote-ref" id="fnref:2" href="#fn:2"><sup>2</sup></a>).
</p><p>It was very difficult to simply port adb from a 32-bit architecture to a 64-bit architecture, so Sun engineers decided to make a new debugger that would feature enhanced debugging capabilities, while being backward compatible with adb.
</p>
<h2 id="see-also">See also</h2>
<ul><li><a href="/facts/Dbx_(debugger)/fzXVSbt7">dbx (debugger)</a></li></ul>

<ul><li>Mike Shapiro (February 2009). <a href="https://doi.org/10.1145%2F1508211.1508217">"Purpose Built Languages"</a>. <i><a href="/facts/ACM_Queue/7D8H31TW">ACM Queue</a></i>. 7 (1): 18–24. <a href="/facts/Doi_(identifier)/muM9Etpq">doi</a>:<a href="https://doi.org/10.1145%2F1508211.1508217">10.1145/1508211.1508217</a>.</li></ul>

<h2 id="references">References</h2>

<ol>
<li id="fn:1"><p>"mdb source in Illumos". <a href="http://src.illumos.org/source/xref/illumos-gate/usr/src/cmd/mdb/common/mdb/" target="_blank">http://src.illumos.org/source/xref/illumos-gate/usr/src/cmd/mdb/common/mdb/</a> <a href="#fnref:1" class="footnote-back-ref">↩</a></p></li>
<li id="fn:2"><p>adb(1) – Version 7 Unix Programmer's Manual <a href="http://man.cat-v.org/unix_7th/1/adb" target="_blank">http://man.cat-v.org/unix_7th/1/adb</a> <a href="#fnref:2" class="footnote-back-ref">↩</a></p></li>
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Modular Debugger open-in-new

Modular Debugger