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<a name="Debugging-Remote-Programs"></a>
<h2 class="chapter">20 Debugging Remote Programs</h2>
<a name="index-remote-debugging"></a>

<p>If you are trying to debug a program running on a machine that cannot run
<small>GDB</small> in the usual way, it is often useful to use remote debugging.
For example, you might use remote debugging on an operating system kernel,
or on a small system which does not have a general purpose operating system
powerful enough to run a full-featured debugger.
</p>
<p>Some configurations of <small>GDB</small> have special serial or TCP/IP interfaces
to make this work with particular debugging targets.  In addition,
<small>GDB</small> comes with a generic serial protocol (specific to <small>GDB</small>,
but not specific to any particular target system) which you can use if you
write the remote stubs&mdash;the code that runs on the remote system to
communicate with <small>GDB</small>.
</p>
<p>Other remote targets may be available in your
configuration of <small>GDB</small>; use <code>help target</code> to list them.
</p>
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