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19 Specifying a Debugging Target

A target is the execution environment occupied by your program.

Often, gdb runs in the same host environment as your program; in that case, the debugging target is specified as a side effect when you use the file or core commands. When you need more flexibility—for example, running gdb on a physically separate host, or controlling a standalone system over a serial port or a realtime system over a TCP/IP connection—you can use the target command to specify one of the target types configured for gdb (see Commands for Managing Targets).

It is possible to build gdb for several different target architectures. When gdb is built like that, you can choose one of the available architectures with the set architecture command.

set architecture arch
This command sets the current target architecture to arch. The value of arch can be "auto", in addition to one of the supported architectures.
show architecture
Show the current target architecture.
set processor
These are alias commands for, respectively, set architecture and show architecture.