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Date:      Mon, 9 Feb 2004 22:26:15 +0800
From:      "Jun Su" <junsu@delphij.net>
To:        <richardcoleman@mindspring.com>, "Kris Kennaway" <kris@obsecurity.org>
Cc:        freebsd-current@freebsd.org
Subject:   Re: -fno-strict-aliasing
Message-ID:  <003e01c3ef18$b1196170$d1dea1d3@shasujunmv>
References:  <c11ba4d1.a4d1c11b@etat.lu><20040209022820.00faa408@pyro.convolution.ti><20040209043217.GA1009@xor.obsecurity.org> <4027871E.8080800@mindspring.com>

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----- Original Message ----- 
From: "Richard Coleman" <richardcoleman@mindspring.com>
To: "Kris Kennaway" <kris@obsecurity.org>
Cc: "Bruno T." <bmrk@terra.com.br>; <freebsd-current@freebsd.org>
Sent: Monday, February 09, 2004 9:11 PM
Subject: Re: -fno-strict-aliasing


> Kris Kennaway wrote:
>
> > On Mon, Feb 09, 2004 at 02:28:20AM -0200, Bruno T. wrote:
> >
> >>Hi everyone.
> >>i'm pretty new to bsd, but i have some background in linux development
> >>and for what i have seen until now, i must say that -CURRENT is rather
impressive, congrats !
> >>
> >>I was rebuilding my base sys and noticed that any compiler flag
> >>that implies -fstrict-aliasing (like -O2) would break some few things,
> >>adding "-fno-strict-aliasing" to "CFLAGS+=" in these makefiles
> >>solves the problem for now.
> >
> >
> > Don't do that then :-)
> >
> > Kris
>
> Although it's not urgent, I don't see why the aliasing problems can't be
> fixed.  I think it would be more honest if the party line was "FreeBSD
> has bugs, so we can't use -O2 right now" rather than the standard reply
> of "-O2 is not supported, don't even try".
We can find out what applications broken with strict-alias and mark them in
the Makefile. This can make the whole system use -O2 or above. Besides this,
we can clean this problem one by one from our base.

Jun Su
>
> Richard Coleman
> richardcoleman@mindspring.com
>
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