On Saturday 23 September 2006 00:43, Jeremy Fitzhardinge wrote:
> Andi Kleen wrote:
> > BTW I changed my copy sorry. I redid the early PDA support
> > to not be in assembler.
>
> I went to the trouble of making the PDA completely set up before any C
> code ran.
Yes, but your patch never applied to anything even remotely
looking like the code in my tree. I got so frustrated that
I ended up reimplementing it in a cleaner way.
Now head.S calls i386_start_kernel() and that calls pda_init()
without any additional assembly code or other special cases etc.
This is very similar to how x86-64 works.
> which means that that they
> have to work from the first function prologue.
I mainly did it to fix lockdep.
I used to do mcount hacks myself, but you typically need
a few special annotations for those anyways so I am not too
concerned about them.
> It also simplifies things to get all that set up ASAP so there's no
> bootstrap dependency problem.
Yes no argument on that.
-Andi
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