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