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(emacs)Debuggers

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Running Debuggers Under Emacs
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   The GUD (Grand Unified Debugger) library provides an interface to
various symbolic debuggers from within Emacs.  We recommend the debugger
GDB, which is free software, but you can also run DBX, SDB or XDB if you
have them.  GUD can also serve as an interface to the Perl's debugging
mode, the Python debugger PDB, and to JDB, the Java Debugger.  Note:
The Lisp Debugger, for information on debugging Emacs
Lisp programs.

Starting GUD

How to start a debugger subprocess.

Debugger Operation

Connection between the debugger and source buffers.

Commands of GUD

Key bindings for common commands.

GUD Customization

Defining your own commands for GUD.

GUD Tooltips

Showing variable values by pointing with the mouse.