Re: [B2-devel] Darwin port

[Gwenole B. <gb...@di...>]

> Actually, the sigsegv handler code is the same as for B2. I have just 
> hacked around to use Mach exceptions to handle screen faults (early so 
> that we don't need the whole context) + other faults like writes to 
> ROM. However, SheepShaver hangs early after a few seconds. I think 
> this is because we have not taught our Mach exception handler to 
> execute with an alternate stack (set by sigaltstack() or another means 
> we can define) as we should. Is that possible to do?

Hmm, this doesn't change anything.

Anyway, I have attached the current code I am experimenting. If 
MACH_EXCEPTIONS is set to 1 in main_unix.cpp, then MacOS would hang 
afterwards. I currently have no glue. Otherwise, it's "fine". i.e. does 
not hang but is slow.