67 lines
3.2 KiB
HTML
67 lines
3.2 KiB
HTML
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<title>Active Targets - Debugging with GDB</title>
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<a name="Active-Targets"></a>
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<p>
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Next: <a rel="next" accesskey="n" href="Target-Commands.html#Target-Commands">Target Commands</a>,
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Up: <a rel="up" accesskey="u" href="Targets.html#Targets">Targets</a>
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<h3 class="section">19.1 Active Targets</h3>
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<p><a name="index-stacking-targets-1307"></a><a name="index-active-targets-1308"></a><a name="index-multiple-targets-1309"></a>
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There are multiple classes of targets such as: processes, executable files or
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recording sessions. Core files belong to the process class, making core file
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and process mutually exclusive. Otherwise, <span class="sc">gdb</span> can work concurrently
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on multiple active targets, one in each class. This allows you to (for
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example) start a process and inspect its activity, while still having access to
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the executable file after the process finishes. Or if you start process
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recording (see <a href="Reverse-Execution.html#Reverse-Execution">Reverse Execution</a>) and <code>reverse-step</code> there, you are
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presented a virtual layer of the recording target, while the process target
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remains stopped at the chronologically last point of the process execution.
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<p>Use the <code>core-file</code> and <code>exec-file</code> commands to select a new core
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file or executable target (see <a href="Files.html#Files">Commands to Specify Files</a>). To
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specify as a target a process that is already running, use the <code>attach</code>
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command (see <a href="Attach.html#Attach">Debugging an Already-running Process</a>).
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</body></html>
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