From: Frank Rowand <frank_rowand@mvista.com>
To: Michael Schmitz <schmitz@opal.biophys.uni-duesseldorf.de>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>,
Rolf Liu <rolfl@sc23.sc.mcel.mot.com>,
linuxppc-dev@lists.linuxppc.org
Subject: Re: question about 'r2' !!!
Date: Wed, 06 Sep 2000 13:23:01 -0700 [thread overview]
Message-ID: <39B6A7A5.3EAF964F@mvista.com> (raw)
In-Reply-To: Pine.LNX.4.10.10009061819050.23404-100000@opal.biophys.uni-duesseldorf.de
Michael Schmitz wrote:
>
> > > I am currently engaged in compiling Linux-ppc source tree using a CC other
> > > than GCC.
> >
> > May I ask you _why_ you want to do that?!?
>
> The mind fairly boggles. Anyway, once upon a time, current wasn't kept in
> a register but in memory. And if r2 won't do, just pick another register
> and tell the compiler not to touch it. Hope your compiler of choice has
> such a thing as --fixed-r2 ...
>
> Michael
>
And if you want to use kgdb to debug your kernel, gdb knows that current is r2...
-Frank
--
Frank Rowand <frank_rowand@mvista.com>
MontaVista Software, Inc
** Sent via the linuxppc-dev mail list. See http://lists.linuxppc.org/
next prev parent reply other threads:[~2000-09-06 20:23 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2000-09-06 2:24 question about 'r2' !!! Rolf Liu
2000-09-06 11:00 ` Geert Uytterhoeven
2000-09-06 16:46 ` Michael Schmitz
2000-09-06 20:23 ` Frank Rowand [this message]
2000-09-06 20:41 ` Michael Schmitz
2000-09-06 21:07 ` Dan Malek
2000-09-07 11:16 ` Michael Schmitz
2000-09-07 0:53 ` Paul Mackerras
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