toread at discordia.pl
Mon Apr 11 05:05:25 PDT 2005
On Mon, 11 Apr 2005, Kris Kennaway <kris at 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
# compiled with processor-specific (or higher - see below) optimization
# If in doubt, do not set CPUTYPE or CFLAGS to non-default values.
is in /etc/defaults/make.conf in 4.x?
"How fortunate the man with none."
--Dead Can Dance
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