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# Debug the Application #
You can debug your application many ways.
The method depends on factors such as the component you are debugging,
whether or not you are doing a post-mortem analysis, and your debugging
skills and productivity.
For example, do you know how to use the
[GNU Project Debugger](https://www.gnu.org/software/gdb/) (`gdb`) from a
console?
Or, is it better for you to use a remote user interface that is part of
an Integrated Development Environment (IDE) such as Eclipse?
For general information on debugging an application, see the
"[Overview](../../../devguides/reference/xds/part-1/debug-overview.html)"
topic under "Debugging Your First AGL Application".
Three methods exist:
* Use `gdb` on the target.
<!--section-note-->
**NOTE:**
How to use `gdb` and other debugging tools such as `valgrind`, `strace`,
and so forth is beyond the scope of the AGL Documentation.
See the appropriate documentation for third-party debugging tools.
<!--end-section-note-->
* Use Core Dumps if you have set the `agl-devel` feature.
Core Dumps are obviously more suited for post-mortem analysis.
For features, see the
"[Initializing Your Build Environment](./image-workflow-initialize-build-environment.html#initializing-your-build-environment)"
topic.
<!--section-note-->
**NOTE:**
Core Dumps are available only with the "Flunky Flounder" release (i.e. 6.x).
<!--end-section-note-->
* Use XDS remotely, which is based on `gdb` and
[`gdbserver`](https://en.wikipedia.org/wiki/Gdbserver).
See the
"[Using the XDS Command Line](../../../devguides/reference/xds/part-1/debug-cmd-line.html#xds-remote-debugging-mode)"
topic for more information.
For information on how to remotely debug the application using XDS from within an IDE, see the
"[Using an IDE](../../../devguides/reference/xds/part-1/debug-ide.html)"
section.
In order to use third-party debugging tools, you need to include the tools in the target image.
You gain access to the tools by enabling the `agl-devel` feature when you run the
`aglsetup.sh` script as described in the
"[Initializing Your Build Environment](./image-workflow-initialize-build-environment.html#initializing-your-build-environment)"
section.
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