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#!/usr/bin/env bash
# SPDX-License-Identifier: LGPL-2.1-or-later
set -eu
set -o pipefail
cpp="$1"
filesystems_gperf="$2"
shift 2
includes=""
for i in "$@"; do
includes="$includes -include $i"
done
error=false
# shellcheck disable=SC2086
for fs in $($cpp -dM $includes - </dev/null | \
grep -E '_MAGIC' | \
grep -vE 'LINUX_MAGIC' | \
awk '/^#define[ \t]+[A-Z0-9_]+MAGIC[ \t]+/ { print $2; }'); do
if ! grep -E "\{.*$fs.*\}" "$filesystems_gperf" >/dev/null; then
# STACK_END_MAGIC doesn't refer to a filesystem
# mtd_inode was removed in 2015
# futexfs was removed in 2018
if [[ "$fs" =~ ^(STACK_END_MAGIC|MTD_INODE_FS_MAGIC|FUTEXFS_SUPER_MAGIC)$ ]]; then
continue
fi
echo "Filesystem found in kernel header but not in $(basename "$filesystems_gperf"): $fs";
error=true
fi
done
if $error; then
exit 1
fi
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