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74 lines
1.8 KiB
74 lines
1.8 KiB
#!/bin/sh |
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# SPDX-License-Identifier: GPL-2.0 |
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# |
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# Generate the x86_cap/bug_flags[] arrays from include/asm/cpufeatures.h |
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# |
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set -e |
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OUT=$1 |
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dump_array() |
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{ |
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ARRAY=$1 |
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SIZE=$2 |
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PFX=$3 |
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POSTFIX=$4 |
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IN=$5 |
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PFX_SZ=$(echo $PFX | wc -c) |
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TABS="$(printf '\t\t\t\t\t')" |
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echo "const char * const $ARRAY[$SIZE] = {" |
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# Iterate through any input lines starting with #define $PFX |
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sed -n -e 's/\t/ /g' -e "s/^ *# *define *$PFX//p" $IN | |
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while read i |
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do |
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# Name is everything up to the first whitespace |
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NAME="$(echo "$i" | sed 's/ .*//')" |
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# If the /* comment */ starts with a quote string, grab that. |
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VALUE="$(echo "$i" | sed -n 's@.*/\* *\("[^"]*"\).*\*/@\1@p')" |
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[ -z "$VALUE" ] && VALUE="\"$NAME\"" |
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[ "$VALUE" = '""' ] && continue |
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# Name is uppercase, VALUE is all lowercase |
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VALUE="$(echo "$VALUE" | tr A-Z a-z)" |
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if [ -n "$POSTFIX" ]; then |
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T=$(( $PFX_SZ + $(echo $POSTFIX | wc -c) + 2 )) |
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TABS="$(printf '\t\t\t\t\t\t')" |
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TABCOUNT=$(( ( 6*8 - ($T + 1) - $(echo "$NAME" | wc -c) ) / 8 )) |
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printf "\t[%s - %s]%.*s = %s,\n" "$PFX$NAME" "$POSTFIX" "$TABCOUNT" "$TABS" "$VALUE" |
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else |
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TABCOUNT=$(( ( 5*8 - ($PFX_SZ + 1) - $(echo "$NAME" | wc -c) ) / 8 )) |
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printf "\t[%s]%.*s = %s,\n" "$PFX$NAME" "$TABCOUNT" "$TABS" "$VALUE" |
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fi |
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done |
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echo "};" |
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} |
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trap 'rm "$OUT"' EXIT |
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( |
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echo "#ifndef _ASM_X86_CPUFEATURES_H" |
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echo "#include <asm/cpufeatures.h>" |
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echo "#endif" |
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echo "" |
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dump_array "x86_cap_flags" "NCAPINTS*32" "X86_FEATURE_" "" $2 |
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echo "" |
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dump_array "x86_bug_flags" "NBUGINTS*32" "X86_BUG_" "NCAPINTS*32" $2 |
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echo "" |
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echo "#ifdef CONFIG_X86_VMX_FEATURE_NAMES" |
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echo "#ifndef _ASM_X86_VMXFEATURES_H" |
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echo "#include <asm/vmxfeatures.h>" |
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echo "#endif" |
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dump_array "x86_vmx_flags" "NVMXINTS*32" "VMX_FEATURE_" "" $3 |
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echo "#endif /* CONFIG_X86_VMX_FEATURE_NAMES */" |
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) > $OUT |
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trap - EXIT
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