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Date: Sun, 20 Mar 2011 20:41:04 +0100
From: Fabian Keil <freebsd-listen@fabiankeil.de>
To: Roman Divacky <rdivacky@freebsd.org>
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Cc: current@freebsd.org
Subject: Re: [TESTING]: boot2 compilation with -mregparm=3
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Roman Divacky <rdivacky@freebsd.org> wrote:

> This patch:
>=20
>=20
>         http://lev.vlakno.cz/~rdivacky/boot2-mregparm.patch
>=20
>=20
> makes boot2 to be compiled with -mregparm=3D3 (which shrinks it
> some). It changes CFLAGS to include -mregparm=3D3 and also
> rewrites sio.S to use register passing.
>=20
> This survived my testing in qemu and jhb@s review.

Works for me on amd64 with gcc, but I don't use either
a serial console or gptboot/zfsboot.

Fabian

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