In the host environment, debugging an application that runs on top of the operating system is done by running a debugger tool, which can attach to an existing process, or spawn a new one given an executable ELF file and its command-line arguments. The default debugging option provided by the GCC suite is called GDB, an acronym for the GNU Debugger. While GDB is a command-line tool, several frontends have been developed to provide a better visualization of the state of the execution, and some integrated development environments provide built-in frontends for interacting with the debugger while tracing the single lines being executed.
Once again, the situation is slightly changed when the software to debug is running on a remote platform. ...
