27.5.1 gdb/mi Result Records
In addition to a number of out-of-band notifications, the response to a
gdb/mi command includes one of the following result indications:
"^done" [ ","
results ]
- The synchronous operation was successful, results are the return
values.
"^running"
- This result record is equivalent to `^done'. Historically, it
was output instead of `^done' if the command has resumed the
target. This behaviour is maintained for backward compatibility, but
all frontends should treat `^done' and `^running'
identically and rely on the `*running' output record to determine
which threads are resumed.
"^connected"
- gdb has connected to a remote target.
"^error" ","
c-string- The operation failed. The c-string contains the corresponding
error message.
"^exit"
- gdb has terminated.