Question about cc flags in buildkernel

[Kirk Strauser]

I'm building a kernel on a Cabriolet (EV45/275 MHz), and am a little curious
about something in the make output.  My make.conf has these:

   CPUTYPE=ev45
   CFLAGS= -O3 -pipe -fno-strict-aliasing -mieee
   COPTFLAGS= -O3 -pipe -fno-strict-aliasing -mieee

and I'm seeing lines like:

   cc -c -O2 -pipe -fno-strict-aliasing -mieee -fno-strict-aliasing -mcpu=ev45 -mieee -Wall -Wredundant-decls -Wnested-externs -Wstrict-prototypes -Wmissing-prototypes -Wpointer-arith -Winline -Wcast-qual -fformat-extensions -std=c99 -nostdinc -I- -I. -I/usr/src/sys -I/usr/src/sys/contrib/dev/acpica -I/usr/src/sys/contrib/altq -I/usr/src/sys/contrib/ipfilter -I/usr/src/sys/contrib/pf -I/usr/src/sys/contrib/dev/ath -I/usr/src/sys/contrib/dev/ath/freebsd -I/usr/src/sys/contrib/ngatm -D_KERNEL -include opt_global.h -finline-limit=15000 --param inline-unit-growth=100 --param large-function-growth=1000 -mno-fp-regs -ffixed-8 -Wa,-mev6 -ffreestanding /usr/src/sys/alpha/alpha/genassym.c

The part that's confusing me is the "-Wa,-mev6".  What exactly does that
refer to?  I couldn't find it in the "as" info page, but it looks at first
glance like it's targetting an architecture that I don't have.  Am I
misreading that?  If not, why did it select that?  Could this be why my
EV45/275 seems to run like a Pentium 90?
-- 
Kirk Strauser
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