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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-11 08:27:49 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-11 08:27:49 +0000 |
| commit | ace9429bb58fd418f0c81d4c2835699bddf6bde6 (patch) | |
| tree | b2d64bc10158fdd5497876388cd68142ca374ed3 /arch/x86/kernel/cpu/mkcapflags.sh | |
| parent | Initial commit. (diff) | |
| download | linux-ace9429bb58fd418f0c81d4c2835699bddf6bde6.tar.xz linux-ace9429bb58fd418f0c81d4c2835699bddf6bde6.zip | |
Adding upstream version 6.6.15.upstream/6.6.15
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'arch/x86/kernel/cpu/mkcapflags.sh')
| -rw-r--r-- | arch/x86/kernel/cpu/mkcapflags.sh | 74 |
1 files changed, 74 insertions, 0 deletions
diff --git a/arch/x86/kernel/cpu/mkcapflags.sh b/arch/x86/kernel/cpu/mkcapflags.sh new file mode 100644 index 0000000000..1db560ed2c --- /dev/null +++ b/arch/x86/kernel/cpu/mkcapflags.sh @@ -0,0 +1,74 @@ +#!/bin/sh +# SPDX-License-Identifier: GPL-2.0 +# +# Generate the x86_cap/bug_flags[] arrays from include/asm/cpufeatures.h +# + +set -e + +OUT=$1 + +dump_array() +{ + ARRAY=$1 + SIZE=$2 + PFX=$3 + POSTFIX=$4 + IN=$5 + + PFX_SZ=$(echo $PFX | wc -c) + TABS="$(printf '\t\t\t\t\t')" + + echo "const char * const $ARRAY[$SIZE] = {" + + # Iterate through any input lines starting with #define $PFX + sed -n -e 's/\t/ /g' -e "s/^ *# *define *$PFX//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 "$VALUE" | tr A-Z a-z)" + + if [ -n "$POSTFIX" ]; then + T=$(( $PFX_SZ + $(echo $POSTFIX | wc -c) + 2 )) + TABS="$(printf '\t\t\t\t\t\t')" + TABCOUNT=$(( ( 6*8 - ($T + 1) - $(echo "$NAME" | wc -c) ) / 8 )) + printf "\t[%s - %s]%.*s = %s,\n" "$PFX$NAME" "$POSTFIX" "$TABCOUNT" "$TABS" "$VALUE" + else + TABCOUNT=$(( ( 5*8 - ($PFX_SZ + 1) - $(echo "$NAME" | wc -c) ) / 8 )) + printf "\t[%s]%.*s = %s,\n" "$PFX$NAME" "$TABCOUNT" "$TABS" "$VALUE" + fi + done + echo "};" +} + +trap 'rm "$OUT"' EXIT + +( + echo "#ifndef _ASM_X86_CPUFEATURES_H" + echo "#include <asm/cpufeatures.h>" + echo "#endif" + echo "" + + dump_array "x86_cap_flags" "NCAPINTS*32" "X86_FEATURE_" "" $2 + echo "" + + dump_array "x86_bug_flags" "NBUGINTS*32" "X86_BUG_" "NCAPINTS*32" $2 + echo "" + + echo "#ifdef CONFIG_X86_VMX_FEATURE_NAMES" + echo "#ifndef _ASM_X86_VMXFEATURES_H" + echo "#include <asm/vmxfeatures.h>" + echo "#endif" + dump_array "x86_vmx_flags" "NVMXINTS*32" "VMX_FEATURE_" "" $3 + echo "#endif /* CONFIG_X86_VMX_FEATURE_NAMES */" +) > $OUT + +trap - EXIT |