Re: [RFC] Non-executable stack on SPARC

Andrew Cagney
2004-02-02T18:37:21Z

> Date: Sun, 1 Feb 2004 18:48:19 +0100 (CET)
>> From: Mark Kettenis <kettenis@chello.nl>
>>
>> My line of thought is that it's IMHO fundamentally wrong to push
>> target- or architecture-specific details into the application level of
>> GDB, which is what infrun.c is. infrun.c should deal with high-level
>> logic of handling a stopped inferior, it should not IMHO know about
>> intricacies of specific targets.
>>
>> The question is to what extent this is an intricacy of a specific
>> target.
>
>
> I think that the set of signals, apart of SIGTRAP, that can express a
> breakpoint on a given target/architecture is something infrun.c
> shouldn't know about.

Yes.

Here, though, we don't have the case of a just-executed breakpoint,
rather we have a not-yet-executed segmentation fault. To implement VM
based breakpoints and watchpoints GDB will need to be able to
differentiate between the two. Hence, I think making this edge case
visible in infrun is better.

enjoy,
Andrew