Re: [PATCH 1/2] m68k: Drop Atari EtherNAT support when it's not configured in

[Eero Tamminen <oak@helsinkinet.fi>]

Hi,

On 25.9.2024 20.13, Andreas Schwab wrote:
> On Sep 25 2024, Eero Tamminen wrote:
> 
>> Hatari debugger backtrace does not rely on frame pointers or stack content
>> unwinding, i.e. it's immune to stack corruption.
> 
> That has nothing to do with stack corruption.  Valid user-space
> addresses can very well happen to match kernel adresses, since the
> address spaces overlap.

Hatari profiler & debugger (currently) support only physical addresses, 
so that's not the case.


	- Eero

Lack of MMU / address translation support in them is not a problem for 
what they're normally used [1], as neither TOS, nor 99.9% of the stuff 
run under it, use/need that.

However, with Linux, it means them being mainly useful for debugging 
what happens on kernel side.  I do not think that to be too much of a 
problem though, as kernel side is the hard part and there are good 
alternatives for debugging user-space.

---

[1] E.g. optimizations in latest ScummVM upstream releases that make it 
work OK on original Atari TT & Falcon HW, and (enhanced) Doom I version 
that runs OK on original Atari Falcon.