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# $NetBSD: subr_FreeBSD,v 1.4 2010/12/05 11:19:39 abs Exp $
AWK=awk
SED=sed
display_hw_details()
{
cat <<END
OS : '$(uname)'
hw.model : '$hw_model'
hw.machine : '$hw_machine'
hw.machine_arch : '$hw_machine_arch'
cpu details :
END
$SED -n '/^CPU:/{N;N;N;N;N;N;N;s/\n[^ ].*//g;/\n /p;}' \
/var/run/dmesg.boot 2>/dev/null
}
extract_hw_details()
{
hw_model=$(sysctl -n hw.model | $SED 's/(R)//g;s/([tT][mM])//g')
hw_machine=$(sysctl -n hw.machine)
hw_machine_arch=$(sysctl -n hw.machine_arch)
# We're almost certainly crosscompiling
if [ -n "$MACHINE" -a "$hw_machine" != "$MACHINE" ]; then
echo
exit
fi
}
determine_arch()
{
ARCH=
# When adding $hw_model tests use maximum context (such as trailing space)
case $hw_machine_arch in
i386) case $hw_model in
Pentium\ II*) ARCH='-march=pentium2' ;;
Intel\ Pentium\ III\ *) ARCH='-march=pentium3' ;;
Intel\ Pentium\ 4\ *) ARCH='-march=pentium4' ;;
Intel\ Core2\ *) ARCH='-march=core2' ;;
AMD\ Athlon\ XP*) ARCH='-march=athlon-xp' ;;
AMD\ Sempron\ Processor\ *) ARCH='-march=athlon-xp' ;;
# last resort:
*386-class*) ARCH='-march=i386' ;;
*486-class*) ARCH='-march=i486' ;;
*586-class*) ARCH='-march=pentium' ;;
*686-class*) ARCH='-march=pentiumpro' ;;
esac ;;
amd64) case $hw_model in
AMD\ Sempron\ Processor\ *) ARCH='-march=athlon64' ;;
esac ;;
esac
echo $ARCH
}
determine_features()
{
FEATURES=
dmesg_features=$(echo $($SED -n \
's/.* Features[0-9]\{0,1\}=0x[0-9a-f]\{1,\}<\(.*\)>$/\1/p' \
/var/run/dmesg.boot 2>/dev/null | $SED 's/,/ /g'))
case $hw_machine_arch in
i386 | amd64) case " $dmesg_features " in
*" SSE3 "*) FEATURES="-mfpmath=sse -msse3" ;;
*" SSE2 "*) FEATURES="-mfpmath=sse -msse2" ;;
*" SSE "*) FEATURES="-mfpmath=sse -msse" ;;
*" MMX "*) FEATURES="-mmmx" ;;
esac
if [ -z "$FEATURES" ]; then # FEATURES empty: jail?
# failover: try sse from sysctl db
if [ "$(sysctl -n hw.instruction_sse 2>/dev/null)" = 1 ]; then
FEATURES="-mfpmath=sse -msse"
fi
fi
esac
echo $FEATURES
}
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