On Thu, May 19, 2022 at 1:49 PM Florian Weimer wrote:
>
> * H. J. Lu:
>
> > How about this?
> >
> > @item -mcet-switch
> > @opindex mcet-switch
> > By default, CET instrumentation is turned off on switch statements that
> > use a jump table and indirect branch track is disabled.
>
> Maybe add here
* H. J. Lu:
> How about this?
>
> @item -mcet-switch
> @opindex mcet-switch
> By default, CET instrumentation is turned off on switch statements that
> use a jump table and indirect branch track is disabled.
Maybe add here: “Since jump tables are stored in read-only memory, this
does not result i
On Wed, May 18, 2022 at 11:02 PM Richard Biener
wrote:
>
> On Wed, May 18, 2022 at 7:32 PM H.J. Lu via Gcc-patches
> wrote:
> >
> > On Wed, May 11, 2022 at 1:52 PM H.J. Lu wrote:
> > >
> > > When -fcf-protection=branch is used, the compiler will generate jump
> > > tables for switch statements w
On Wed, May 18, 2022 at 7:32 PM H.J. Lu via Gcc-patches
wrote:
>
> On Wed, May 11, 2022 at 1:52 PM H.J. Lu wrote:
> >
> > When -fcf-protection=branch is used, the compiler will generate jump
> > tables for switch statements where the indirect jump is prefixed with
> > the NOTRACK prefix, so it ca
On Wed, May 11, 2022 at 1:52 PM H.J. Lu wrote:
>
> When -fcf-protection=branch is used, the compiler will generate jump
> tables for switch statements where the indirect jump is prefixed with
> the NOTRACK prefix, so it can jump to non-ENDBR targets. Since the
> indirect jump targets are generate
When -fcf-protection=branch is used, the compiler will generate jump
tables for switch statements where the indirect jump is prefixed with
the NOTRACK prefix, so it can jump to non-ENDBR targets. Since the
indirect jump targets are generated by the compiler, they are always
valid.
Document -mcet-
