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#!/bin/sh
#
# Generate the x86_cap_flags[] array from include/asm/cpufeature.h
#
IN=$1
OUT=$2
TABS="$(printf '\t\t\t\t\t')"
trap 'rm "$OUT"' EXIT
(
echo "#ifndef _ASM_X86_CPUFEATURE_H"
echo "#include <asm/cpufeature.h>"
echo "#endif"
echo ""
echo "const char * const x86_cap_flags[NCAPINTS*32] = {"
# Iterate through any input lines starting with #define X86_FEATURE_
sed -n -e 's/\t/ /g' -e 's/^ *# *define *X86_FEATURE_//p' $IN |
while read i
do
# Name is everything up to the first whitespace
NAME="$(echo "$i" | sed 's/ .*//')"
# If the /* comment */ starts with a quote string, grab that.
VALUE="$(echo "$i" | sed -n 's@.*/\* *\("[^"]*"\).*\*/@\1@p')"
[ -z "$VALUE" ] && VALUE="\"$NAME\""
[ "$VALUE" == '""' ] && continue
# Name is uppercase, VALUE is all lowercase
VALUE="$(echo "$VALUE" | tr A-Z a-z)"
TABCOUNT=$(( ( 5*8 - 14 - $(echo "$NAME" | wc -c) ) / 8 ))
printf "\t[%s]%.*s = %s,\n" \
"X86_FEATURE_$NAME" "$TABCOUNT" "$TABS" "$VALUE"
done
echo "};"
) > $OUT
trap - EXIT
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