[Bug target/106671] aarch64: BTI instruction are not inserted for cross-section direct calls

[rearnsha at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106671

--- Comment #5 from Richard Earnshaw <rearnsha at gcc dot gnu.org> ---
(In reply to D Scott Phillips from comment #2)
> th(In reply to Andrew Pinski from comment #1)
> > Shouldn't the linker add the BTI inside the ___veneer instead?
> 
> The bti instruction has to be placed at the target of the indirect branch
> (at the top of `func` in this case) so I don't think it would be possible to
> work around this just within the veneer.

The veneer has to be placed 'near' the target and then end with a direct branch
instruction.  The linker should be able to work this out.