| #!/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 [ $? -ne 0 ]; then | 
 | 	printf "sha1sum not available, skipping atomic header checks.\n" | 
 | 	exit 0 | 
 | fi | 
 |  | 
 | cat <<EOF | | 
 | linux/atomic/atomic-instrumented.h | 
 | linux/atomic/atomic-long.h | 
 | linux/atomic/atomic-arch-fallback.h | 
 | EOF | 
 | while read header; do | 
 | 	OLDSUM="$(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 |