Monitor commands from GDB on rp2350 return only "available"

[duskwuff]

While attached to a rp2350 target, most GDB monitor commands only return the string "available":

(gdb) tar ext :3333
Remote debugging using :3333
0x2001041e in ?? ()
(gdb) mon flash list
available
(gdb) mon target names
available
(gdb) mon mdw 0x0
available

Disabling the check-availability events in rp2350.cfg - i.e. commenting out lines 147 and 171 - corrects this behavior, but probably causes some dysfunction while debugging targets in RISC-V mode.

[tom-van]

Indeed.
The problem is mixing monitor command output with Tcl event output.
Commit 5f20427 should fix the problem