104 lines
2.2 KiB
Bash
Executable file
104 lines
2.2 KiB
Bash
Executable file
#!@@SH@@
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# $NetBSD: cpuflags.sh,v 1.7 2009/01/28 23:30:50 abs Exp $
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PATH=/sbin:/usr/sbin:/bin:/usr/bin:$PATH
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# cd to the directory containing the binary, so we can usefully check for
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# include files from there
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case "$0" in
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/*) cd $(dirname $0);;
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*) cd $(dirname $PWD/$0);;
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esac
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include()
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{
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file=$1
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if [ -f ./$file ] ; then
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file=./$file
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else
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file=@PREFIX@/share/cpuflags/$file
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fi
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verbose . $file
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. $file
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}
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verbose()
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{
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[ -n "$opt_v" ] && echo $* >&2
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return 0
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}
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UNAME=$(uname)
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if [ "$1" = -v ] ; then
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shift
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opt_v=1
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fi
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if [ -n "$1" ]; then
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CC=$1
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else
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CC=gcc
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fi
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# Each UNAME subr_ file is expected to set AWK & SED, and to provide the
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# following methods:
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# extract_hw_details: Must be called before determine_arch/determine_features
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# determine_arch: Returns cpu arch
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# determine_features: Returns cpu features
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# display_hw_details: Human readable output for current machine
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#
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include subr_${UNAME}
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# This provides gcc_ser(), gcc_ver() and gcc_fixup_arch_flags()
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#
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include subr_gcc
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# native arch
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M_ARCH_NATIVE='-march=native'
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# Determine the flags for this OS/machine
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extract_hw_details
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if [ $(gcc_ser $CC) -gt 4002 ] ; then
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ARCH="$M_ARCH_NATIVE"
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else
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ARCH=$(determine_arch)
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fi
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FEATURES=$(determine_features)
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test "x$ARCH" != "x$M_ARCH_NATIVE" && # gcc have not autodetection
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case "$hw_machine_arch" in # all known x86 mnemonics
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i386|i486|i586|i686|x86_64|amd64|i86pc)
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include subr_x86 # this provides flags_fixup_x86arch()
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l_arch=$(flags_fixup_x86arch "$ARCH" "$FEATURES")
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test -n "$l_arch" && ARCH="-march=$l_arch"
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esac
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# Fixup any flags which are too new for our gcc version
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#
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CPUFLAGS=$(gcc_fixup_arch_flags $CC $ARCH $FEATURES)
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CPUFLAGS=$(echo $CPUFLAGS)
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if [ -n "$opt_v" ] ; then
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if [ -n "$NOARCH" ] ; then
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ARCH="No flags for this architecture"
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fi
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if [ -z "$ARCH" ]; then
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ARCH=Unknown
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fi
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cat <<END
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ARCH : $ARCH
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FEATURES : $FEATURES
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CPUFLAGS : $CPUFLAGS
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GCC version : $(gcc_ver $CC)
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END
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display_hw_details
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exit;
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fi
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if [ -z "$ARCH" -a -z "$NOARCH" ] ; then
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echo 'Unknown machine - please send cpuflags details to abs@absd.org' >&2
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display_hw_details >&2
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fi
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echo $CPUFLAGS
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exit 0
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