On Fri, 20 Sep 2019 at 14:51, Matthew Malcomson
wrote:
>
> On 19/09/19 16:14, Kyrill Tkachov wrote:
> >
> > On 9/19/19 4:13 PM, Christophe Lyon wrote:
> >> On Tue, 17 Sep 2019 at 14:08, Christophe Lyon
> >> wrote:
> >> >
> >> > On 17/09/2019 13:38, Wilco Dijkstra wrote:
> >> > > Hi Christophe,
>
On 19/09/19 16:14, Kyrill Tkachov wrote:
>
> On 9/19/19 4:13 PM, Christophe Lyon wrote:
>> On Tue, 17 Sep 2019 at 14:08, Christophe Lyon
>> wrote:
>> >
>> > On 17/09/2019 13:38, Wilco Dijkstra wrote:
>> > > Hi Christophe,
>> > >
>> > > Can you explain this in more detail - it doesn't make sense
On 9/19/19 4:13 PM, Christophe Lyon wrote:
On Tue, 17 Sep 2019 at 14:08, Christophe Lyon
wrote:
>
> On 17/09/2019 13:38, Wilco Dijkstra wrote:
> > Hi Christophe,
> >
> > Can you explain this in more detail - it doesn't make sense to me
to force the
> > Thumb bit during unwinding since it sho
On Tue, 17 Sep 2019 at 14:08, Christophe Lyon wrote:
>
> On 17/09/2019 13:38, Wilco Dijkstra wrote:
> > Hi Christophe,
> >
> > Can you explain this in more detail - it doesn't make sense to me to force
> > the
> > Thumb bit during unwinding since it should already be correct, even on a
> > Thumb-
On 17/09/2019 13:38, Wilco Dijkstra wrote:
Hi Christophe,
Can you explain this in more detail - it doesn't make sense to me to force the
Thumb bit during unwinding since it should already be correct, even on a
Thumb-only CPU. Perhaps the kernel code that pushes an incorrect address on
the stack
Hi Christophe,
Can you explain this in more detail - it doesn't make sense to me to force the
Thumb bit during unwinding since it should already be correct, even on a
Thumb-only CPU. Perhaps the kernel code that pushes an incorrect address on
the stack could be fixed instead?
> Without this, when
From: Christophe Lyon
Without this, when we are unwinding across a signal frame we can jump
to an even address which leads to an exception.
This is needed in __gnu_persnality_sigframe_fdpic() when restoring the
PC from the signal frame since the PC saved by the kernel has the LSB
bit set to zero
