* Dave Martin: > IIUC the default compiler options when using PAC will only use the > A key, and only use the PAC instructions that execute as NOPs when the > affected key is disabled (precisely so that the code still runs on non- > PAC supporting hardware). But you can't simply flip it on and off while > there are function frames on the stack that assume it's either on or off. I think we can do the switch at the top-most frame, at least in ld.so. I have not thought about statically linked binaries. 8-/
