Date: Mon, 09 Feb 2004 23:08:08 -0800 From: Roop Nanuwa <roop@hqst.com> To: Kris Kennaway <kris@obsecurity.org> Cc: freebsd-current@freebsd.org Subject: Re: -fno-strict-aliasing Message-ID: <40288358.2050302@hqst.com> In-Reply-To: <20040209215345.GA21980@xor.obsecurity.org> References: <c11ba4d1.a4d1c11b@etat.lu> <20040209022820.00faa408@pyro.convolution.ti> <20040209043217.GA1009@xor.obsecurity.org> <4027871E.8080800@mindspring.com> <20040209215345.GA21980@xor.obsecurity.org>
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Kris Kennaway wrote: >On Mon, Feb 09, 2004 at 08:11:58AM -0500, Richard Coleman wrote: > > >>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". >> >> > >It's "don't even try unless you plan to fix them". > >Kris > > I did a buildworld earlier today with -O2 on and had to modify about 4 makefiles to get it to compile. That's not too bad. I already submitted a patch to fix one (libexec/ypxfr) of them. Working on a second one (libc/isinf) now. Both of these are relatively trivial. On the other hand, one of the last two left is in libpam and I don't think I can even begin to fix that, though. Hopefully someone more familiar with it will be able to take a crack at it sooner or later. --roop
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