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Re: recent binutils and mips64-linux

To: Eric Christopher <echristo@redhat.com>
Subject: Re: recent binutils and mips64-linux
From: Thiemo Seufer <ica2_ts@csv.ica.uni-stuttgart.de>
Date: Tue, 23 Sep 2003 10:14:47 +0200
Cc: Alexandre Oliva <aoliva@redhat.com>, "Maciej W. Rozycki" <macro@ds2.pg.gda.pl>, Atsushi Nemoto <nemoto@toshiba-tops.co.jp>, Daniel Jacobowitz <dan@debian.org>, linux-mips@linux-mips.org, binutils@sources.redhat.com
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Eric Christopher wrote:
> On Mon, 2003-09-22 at 16:39, Thiemo Seufer wrote:
> > Alexandre Oliva wrote:
> > > On Sep 19, 2003, Thiemo Seufer <ica2_ts@csv.ica.uni-stuttgart.de> wrote:
> > > 
> > > > A third answer is to add a -msign-extend-addresses switch in the 
> > > > assembler.
> > > 
> > > In what sense is this different from -Wa,-mabi=n32 ?
> > 
> > ELF64 instead of ELF32.
> 
> objcopy?

You mean, let gcc generate n64 code, stuff it in n32 objects, and
objcopy it back to n64? Well, it may work, but it looks more like
a test of binutils sign-extension handling than a straightforward
way of creating kernels to me.

Besides, as soon as gcc handles 64bit expansions itself we need
such an option anyway.


Thiemo

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