Re: [PATCH v15 06/10] arm64: Treat all entry code as non-kprobe-able

[David Long]

On 07/15/2016 12:47 PM, Catalin Marinas wrote:
> On Fri, Jul 08, 2016 at 12:35:50PM -0400, David Long wrote:
> > --- a/arch/arm64/kernel/entry.S
> > +++ b/arch/arm64/kernel/entry.S
> > @@ -243,6 +243,7 @@ tsk	.req	x28		// current thread_info
> >    * Exception vectors.
> >    */
> >
> > +	.pushsection ".entry.text", "ax"
> >   	.align	11
> >   ENTRY(vectors)
> >   	ventry	el1_sync_invalid		// Synchronous EL1t
> > @@ -781,3 +782,5 @@ ENTRY(sys_rt_sigreturn_wrapper)
> >   	mov	x0, sp
> >   	b	sys_rt_sigreturn
> >   ENDPROC(sys_rt_sigreturn_wrapper)
> > +
> > +	.popsection
>
> Does the above sigreturn wrapper need to be included in the .entry.text
> section?

Apparently not. It wouldn't make sense for that to be in entry.text when 
sys_rt_sigreturn() isn't. I'll put that in the list of changes.

Thanks,
-dl