AW: Afterburnered Linux for PowerPC

Hi Joshua,
maybe it would be a nice highlight in my thesis to write such a parser. On the other hand it might be just too much work. I'll read some more about Afterburner and the ANTLR parser. I'll also consider the other alternatives (Wombat, L4Linux) and finally take the decision.

Thanks for your answer,

Martin.

-----Ursprüngliche Nachricht-----
Von: Joshua LeVasseur [mailto:[email protected]] 
Gesendet: Donnerstag, 14. Dezember 2006 17:47
An: Christian, Martin, OPEE45
Cc: [email protected]
Betreff: Re: Afterburnered Linux for PowerPC


Hi,

Adding a new architecture requires a new Afterburner parser (I wrote  
mine with ANTLR), and a new wedge front-end.  The wedge back-end  
should be architecture neutral, but that probably didn't happen.

The wedge front-end includes runtime emulation, and the instruction  
rewriter (for rewriting the sensitive instructions when booting the  
guest kernel).

The PowerPC stuff shouldn't take that much time, but then you have to  
consider time for learning what the code is doing.  And if you want  
to write an ANTLR parser, you have to first learn ANTLR.  I'd say  
that most of the effort will be for the ANTLR parser, and the  
instruction rewriter, since the rewriter must decode instructions and  
emit new binary instructions.

-Josh