Date: Sat, 6 Nov 2004 19:19:04 -0800 From: "Zoltan Frombach" <tssajo@hotmail.com> To: <freebsd-current@freebsd.org> Subject: -O2 with 5.3 world and kernel - is it officially supported? Message-ID: <BAY2-DAV14jnzi95Hfq000042a0@hotmail.com>
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David O'Brien has posted this on October, 25th
"We've been using '-O2 -fno-strict-aliasing' on all our 64-bit platforms
for quite a while now. So I think it is field-tested enough to give it a
try on the 'i386' kernel also...."
Does it apply to the just released and announced FreeBSD 5.3-RELEASE as
well? Or it is considered safe only for 6.0-CURRENT ? Does anyone know the
answer?
In case it is indeed safe to compile the 5.3 world and kernel with -O2, then
someone might want to change the text in /etc/make.conf ("Note also that at
this time the -O2 setting is known to produce BROKEN CODE due to bugs in
FreeBSD code.")
Please note that I do undearstand that it is not safe to use -O2
optimization for compiling ports. I am only talking about the FreeBSD 5.3
world and kernel. (Or at leaset the kernel - in case it is not yet a 100%
safe for world...)
Zoltan
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