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#!/bin/sh
# SPDX-License-Identifier: GPL-2.0
#
# Check if atomic headers are up-to-date
ATOMICDIR=$(dirname $0)
ATOMICTBL=${ATOMICDIR}/atomics.tbl
LINUXDIR=${ATOMICDIR}/../..
echo '' | sha1sum - > /dev/null 2>&1
if [ $? -ne 0 ]; then
printf "sha1sum not available, skipping atomic header checks.\n"
exit 0
fi
cat <<EOF |
asm-generic/atomic-instrumented.h
asm-generic/atomic-long.h
linux/atomic-fallback.h
EOF
while read header; do
OLDSUM="$(tail -n 1 ${LINUXDIR}/include/${header})"
OLDSUM="${OLDSUM#// }"
NEWSUM="$(sed '$d' ${LINUXDIR}/include/${header} | sha1sum)"
NEWSUM="${NEWSUM%% *}"
if [ "${OLDSUM}" != "${NEWSUM}" ]; then
printf "warning: generated include/${header} has been modified.\n"
fi
done
exit 0
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