[PATCH] Fix crash when loading a core with unexpected register section size

[Antoine Tremblay]

Pedro Alves writes:

> On 01/26/2017 01:54 PM, Antoine Tremblay wrote:
>> 
>> Pedro Alves writes:
>> 
>>> On 01/26/2017 01:17 PM, Antoine Tremblay wrote:
>>>> When loading a core without an executable like so:
>>>> gdb --core core for example often the gdbarch won't contain the
>>>> iterate_over_regset_sections method.
>>>
>>> Can you give an example?  That'd help a lot understand the issue
>>> better.
>>>
>> 
>> I can't share the core that I have that reproduced this :( 
>
> I meant an example gdbarch.  It sounded like this would
> happen with any core with that architecture?

Ho yes, see v2, I added "For example arch-arm." Like you suggested.