On Tue, Apr 27, 2021 at 01:47:17PM -0700, Yu-cheng Yu wrote: > From: "H.J. Lu" <hjl.tools@xxxxxxxxx> > > When Indirect Branch Tracking (IBT) is enabled, vDSO functions may be > called indirectly, and must have ENDBR32 or ENDBR64 as the first > instruction. The compiler must support -fcf-protection=branch so that it > can be used to compile vDSO. > > Signed-off-by: H.J. Lu <hjl.tools@xxxxxxxxx> Reviewed-by: Kees Cook <keescook@xxxxxxxxxxxx> -- Kees Cook
