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 9OUT=$1 10 11dump_array() 12{ 13 ARRAY=$1 14 SIZE=$2 15 PFX=$3 16 POSTFIX=$4 17 IN=$5 18 19 PFX_SZ=$(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 [ ! "$VALUE" ] && continue 34 35 # Name is uppercase, VALUE is all lowercase 36 VALUE="$(echo "$VALUE" | tr A-Z a-z)" 37 38 if [ -n "$POSTFIX" ]; then 39 T=$(( $PFX_SZ + $(echo $POSTFIX | wc -c) + 2 )) 40 TABS="$(printf '\t\t\t\t\t\t')" 41 TABCOUNT=$(( ( 6*8 - ($T + 1) - $(echo "$NAME" | wc -c) ) / 8 )) 42 printf "\t[%s - %s]%.*s = %s,\n" "$PFX$NAME" "$POSTFIX" "$TABCOUNT" "$TABS" "$VALUE" 43 else 44 TABCOUNT=$(( ( 5*8 - ($PFX_SZ + 1) - $(echo "$NAME" | wc -c) ) / 8 )) 45 printf "\t[%s]%.*s = %s,\n" "$PFX$NAME" "$TABCOUNT" "$TABS" "$VALUE" 46 fi 47 done 48 echo "};" 49} 50 51trap 'rm "$OUT"' EXIT 52 53( 54 echo "#ifndef _ASM_X86_CPUFEATURES_H" 55 echo "#include <asm/cpufeatures.h>" 56 echo "#endif" 57 echo "" 58 59 dump_array "x86_cap_flags" "NCAPINTS*32" "X86_FEATURE_" "" $2 60 echo "" 61 62 dump_array "x86_bug_flags" "NBUGINTS*32" "X86_BUG_" "NCAPINTS*32" $2 63 echo "" 64 65 echo "#ifdef CONFIG_X86_VMX_FEATURE_NAMES" 66 echo "#ifndef _ASM_X86_VMXFEATURES_H" 67 echo "#include <asm/vmxfeatures.h>" 68 echo "#endif" 69 dump_array "x86_vmx_flags" "NVMXINTS*32" "VMX_FEATURE_" "" $3 70 echo "#endif /* CONFIG_X86_VMX_FEATURE_NAMES */" 71) > $OUT 72 73trap - EXIT 74