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GDB supports multiple command interpreters, and some command infrastructure to allow users or user interface writers to switch between interpreters or run commands in other interpreters.
GDB currently supports two command interpreters, the console interpreter (sometimes called the command-line interpreter or CLI) and the machine interface interpreter (or GDB/MI). This manual describes both of these interfaces in great detail.
By default, GDB will start with the console interpreter. However, the user may choose to start GDB with another interpreter by specifying the `-i' or `--interpreter' startup options. Defined interpreters include:
mi2). Used primarily by programs wishing to use GDB as a backend for a debugger GUI or an IDE. For more information, see The GDB/MI Interface.
The interpreter being used by GDB may not be dynamically switched at runtime. Although possible, this could lead to a very precarious situation. Consider an IDE using GDB/MI. If a user enters the command "interpreter-set console" in a console view, GDB would switch to using the console interpreter, rendering the IDE inoperable!
Although you may only choose a single interpreter at startup, you may execute
commands in any interpreter from the current interpreter using the appropriate
command. If you are running the console interpreter, simply use the
interpreter-exec mi "-data-list-register-names"
GDB/MI has a similar command, although it is only available in versions of GDB which support GDB/MI version 2 (or greater).
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