Files
spectre-meltdown-checker/scripts/update_intel_models.sh
2026-04-02 22:33:48 +02:00

81 lines
2.2 KiB
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Executable File

#!/bin/sh
# vim: set ts=4 sw=4 sts=4 et:
# Download and parse Linux kernel's intel-family.h to generate src/libs/003_intel_models.sh.
# Usage: scripts/update_intel_models.sh
set -eu
SCRIPTDIR="$(cd "$(dirname "$0")" && pwd)"
REPODIR="$(dirname "$SCRIPTDIR")"
OUTFILE="$REPODIR/src/libs/003_intel_models.sh"
URL="https://raw.githubusercontent.com/torvalds/linux/refs/heads/master/arch/x86/include/asm/intel-family.h"
TMPFILE=$(mktemp /tmp/intel-family-XXXXXX.h)
trap 'rm -f "$TMPFILE"' EXIT INT TERM
echo "Downloading $URL ..."
wget -q -O "$TMPFILE" "$URL"
echo "Parsing intel-family.h ..."
{
cat <<'HEADER'
# vim: set ts=4 sw=4 sts=4 et:
# AUTO-GENERATED FILE — DO NOT EDIT MANUALLY.
# Generated by scripts/update_intel_models.sh from:
# https://raw.githubusercontent.com/torvalds/linux/refs/heads/master/arch/x86/include/asm/intel-family.h
# Run scripts/update_intel_models.sh to refresh when new Intel CPU families are added to the kernel.
# shellcheck disable=SC2034
{
HEADER
awk '
/^#define INTEL_[A-Z0-9_]+[[:space:]]+IFM\(/ {
name = $2
# Skip wildcard and notational markers
if (name == "INTEL_ANY") next
if (name ~ /_START$/) next
if (name ~ /_LAST$/) next
# Extract the IFM(...) argument string
line = $0
sub(/.*IFM\(/, "", line) # line is now: "N, 0xNN) ..."
# Extract family
family = line
sub(/,.*/, "", family)
gsub(/[[:space:]]/, "", family)
# Skip non-numeric families (e.g. X86_FAMILY_ANY)
if (family !~ /^[0-9]+$/) next
# Extract model
rest = line
sub(/^[^,]+, */, "", rest) # remove "N, "
model = rest
sub(/\).*/, "", model)
gsub(/[[:space:]]/, "", model)
# Extract optional C comment and convert to shell comment
comment = ""
if (index($0, "/*") > 0) {
c = $0
sub(/.*\/\*/, "/* ", c)
gsub(/ +/, " ", c)
sub(/ *\*\/.*/, " */", c)
comment = "\t# " c
}
# Strip INTEL_ prefix; prepend INTEL_FAM<family>_
sub(/^INTEL_/, "", name)
varname = "INTEL_FAM" family "_" name
printf "\treadonly %s=$(( %s ))%s\n", varname, model, comment
}
' "$TMPFILE"
printf '}\n'
} | shfmt -i 4 -ci -ln bash > "$OUTFILE"
echo "Generated $OUTFILE ($(wc -l < "$OUTFILE") lines)"