vgdb(1) on Linux
The text ba74e7006cd1, as Debian 10 (Buster) shipped it.
intermediary between Valgrind and GDB or a shell
Flags it lists
-
--cmd-time-out -
--max-invoke-ms -
--pid -
--port -
--vgdb-prefix -
--wait -
-D -
-c -
-d -
-l