1#!/bin/sh 2# SPDX-License-Identifier: GPL-2.0 3# 4# Generate the x86_cap/bug_flags[] arrays from include/asm/cpufeatures.h 5# 6 7set -e 8 9IN=$1 10OUT=$2 11 12dump_array() 13{ 14 ARRAY=$1 15 SIZE=$2 16 PFX=$3 17 POSTFIX=$4 18 19 PFX_SZ=$(echo $PFX | wc -c) 20 TABS="$(printf '\t\t\t\t\t')" 21 22 echo "const char * const $ARRAY[$SIZE] = {" 23 24 # Iterate through any input lines starting with #define $PFX 25 sed -n -e 's/\t/ /g' -e "s/^ *# *define *$PFX//p" $IN | 26 while read i 27 do 28 # Name is everything up to the first whitespace 29 NAME="$(echo "$i" | sed 's/ .*//')" 30 31 # If the /* comment */ starts with a quote string, grab that. 32 VALUE="$(echo "$i" | sed -n 's@.*/\* *\("[^"]*"\).*\*/@\1@p')" 33 [ -z "$VALUE" ] && VALUE="\"$NAME\"" 34 [ "$VALUE" = '""' ] && continue 35 36 # Name is uppercase, VALUE is all lowercase 37 VALUE="$(echo "$VALUE" | tr A-Z a-z)" 38 39 if [ -n "$POSTFIX" ]; then 40 T=$(( $PFX_SZ + $(echo $POSTFIX | wc -c) + 2 )) 41 TABS="$(printf '\t\t\t\t\t\t')" 42 TABCOUNT=$(( ( 6*8 - ($T + 1) - $(echo "$NAME" | wc -c) ) / 8 )) 43 printf "\t[%s - %s]%.*s = %s,\n" "$PFX$NAME" "$POSTFIX" "$TABCOUNT" "$TABS" "$VALUE" 44 else 45 TABCOUNT=$(( ( 5*8 - ($PFX_SZ + 1) - $(echo "$NAME" | wc -c) ) / 8 )) 46 printf "\t[%s]%.*s = %s,\n" "$PFX$NAME" "$TABCOUNT" "$TABS" "$VALUE" 47 fi 48 done 49 echo "};" 50} 51 52trap 'rm "$OUT"' EXIT 53 54( 55 echo "#ifndef _ASM_X86_CPUFEATURES_H" 56 echo "#include <asm/cpufeatures.h>" 57 echo "#endif" 58 echo "" 59 60 dump_array "x86_cap_flags" "NCAPINTS*32" "X86_FEATURE_" "" 61 echo "" 62 63 dump_array "x86_bug_flags" "NBUGINTS*32" "X86_BUG_" "NCAPINTS*32" 64 65) > $OUT 66 67trap - EXIT 68