patch 8.0.1713: terminal debugger doesn't handle arguments commit https://github.com/vim/vim/commit/b3623a382abc8f8e2bcfba4c1a2aa06b7578eb8d Author: Bram Moolenaar <Bram@vim.org> Date: Sat Apr 14 18:59:50 2018 +0200 patch 8.0.1713: terminal debugger doesn't handle arguments Problem: Terminal debugger doesn't handle arguments. Solution: Use <f-args> and pass all the arguments to gdb, e.g. the core file or process number. (suggested by Christian Brabandt) Disallow starting the debugger twice.

--- a/runtime/doc/terminal.txt
+++ b/runtime/doc/terminal.txt
@@ -649,6 +649,13 @@ the same as any command running in a ter
 When the debugger ends, typically by typing "quit" in the gdb window, the two
 opened windows are closed.
 
+Only one debugger can be active at a time.
+
+To attach gdb to an already running executable, or use a core file, pass extra
+arguments.  E.g.: >
+	:Termdebug vim core
+	:Termdebug vim 98343
+
 
 Example session ~
 							*termdebug-example*