Date: Mon, 11 Apr 2005 14:05:00 +0200 (CEST) From: Piotr Gnyp <toread@discordia.pl> Cc: questions@freebsd.org Subject: Re: make.conf question Message-ID: <20050411140326.V75661@discordia.pl> In-Reply-To: <20050411093328.GA18884@xor.obsecurity.org> References: <20050411111418.J998@discordia.pl> <20050411093328.GA18884@xor.obsecurity.org>
next in thread | previous in thread | raw e-mail | index | archive | help
On Mon, 11 Apr 2005, Kris Kennaway <kris@obsecurity.org> wrote: > The version of gcc that comes with FreeBSD 4.x can't do better than > this, i.e. it doesn't know about optimizations for newer CPUs. In > practise this isn't important. Ok, so why this: # The CPUTYPE variable controls which processor should be targeted for # generated code. This controls processor-specific optimizations in # certain code (currently only OpenSSL) as well as modifying the value # of CFLAGS to contain the appropriate optimization directive to gcc. # The automatic setting of CFLAGS may be overridden using the # NO_CPU_CFLAGS variable below. # Currently the following CPU types are recognized: # Intel x86 architecture: # (AMD CPUs) k7 k6-2 k6 k5 # (Intel CPUs) p4 p3 p2 i686 i586/mmx i586 i486 i386 # Alpha/AXP architecture: ev6 pca56 ev56 ev5 ev45 ev4 # # If you experience any problems after setting this flag, please unset # it again before submitting a bug report or attempting to modify code. # It may be that certain types of software will become unstable after being # compiled with processor-specific (or higher - see below) optimization flags. # If in doubt, do not set CPUTYPE or CFLAGS to non-default values. # #CPUTYPE=i686 is in /etc/defaults/make.conf in 4.x? -- "How fortunate the man with none." --Dead Can Dance
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?20050411140326.V75661>