How to debug in Eclipse

The following example is made with Eclipse Mars, Cygwin, gcc and gdb. However, the same applies to all other compilers and environments, too.

1. Compile with debug information

Don’t forget this. Otherwise sources symbols cannot not mapped.

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2. Create a debug configuration for a C++ application

This options can be found under Run->Debug Configurations… or click on the arrow next to the green spider.

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Choose a suitable name and the executable.

3. Add path mapping

../../../_images/debug_path.png

../../../_images/debug_map.png

Note that this must be done if the compiler uses different paths than Eclipse. In this example I have used gcc under Cygwin,
which typically uses “/cygdrive/c” for “c:\”. I always mount “c:\” to “/c”.

Also note, that my Eclipse changes “/c” to “\c” in the dialog box automatically, but it works nevertheless.

4. Now you can debug your code

../../../_images/debug_debug.png