https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105108
--- Comment #7 from Jakub Jelinek <jakub at gcc dot gnu.org> --- There can be security concerns with that though if just print variable in a debugger lets you format your disk etc. though, while DWARF expressions can do a lot, they can't modify registers or memory of the debugged program, perform I/O etc., while this would allow it to be done under the hood without the user knowing it is happening.