From the article: As is often the case, Emacs users present their own special challenges. Emacs uses control-C for its own purposes, and remaps SIGINT to contr

From the article: As is often the case, Emacs users present their own special challenges. Emacs uses control-C for its own purposes, and remaps SIGINT to control-G instead. In cases like this, the user almost certainly wants control-C to be passed through to the target. The answer is a GDB command that allows the user to specify which key should interrupt the process and return to the GDB prompt.