Date: Wed, 6 Feb 2002 20:15:29 -0500 From: Jake Burkholder <jake@locore.ca> To: Andrew Gallatin <gallatin@cs.duke.edu> Cc: Julian Elischer <julian@elischer.org>, current@FreeBSD.ORG Subject: Re: Non 386 testers REALLY NEEDED Message-ID: <20020206201529.B5140@locore.ca> In-Reply-To: <15457.47506.919518.594829@grasshopper.cs.duke.edu>; from gallatin@cs.duke.edu on Wed, Feb 06, 2002 at 06:17:38PM -0500 References: <Pine.BSF.4.21.0202061157570.91961-100000@InterJet.elischer.org> <15457.47000.527840.252043@grasshopper.cs.duke.edu> <15457.47506.919518.594829@grasshopper.cs.duke.edu>
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Apparently, On Wed, Feb 06, 2002 at 06:17:38PM -0500,
Andrew Gallatin said words to the effect of;
>
> Andrew Gallatin writes:
> >
> > Since thread0 is no longer a pointer, this looks suspicious in locore.s:
> >
> > /*
> > * Switch to proc0's PCB.
> > */
> > ldq t0,thread0 /* get phys addr of pcb */
> > ldq a0,TD_MD_PCBPADDR(t0)
> > SWITCH_CONTEXT
>
> Yeah.. that's it. I hacked around it by taking thread0's address in
> machdep.c, shoving it into a global and using that global in locore.s
> The resulting kernel booted.
>
> What's the "right" way to do this?
I think you want lda, its used to load an address constant in support.s:
lda t0, fusufault /* trap faults */
Jake
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