author: Mark Rutland <mark.rutland@arm.com> 2019-02-11 13:20:35 +0000
committer: Ingo Molnar <mingo@kernel.org> 2019-02-13 08:07:31 +0100
commit: 0cf264b3133dce56a60ca8b4335d1f76fe26870a
parent: b14e77f89aca1c2763f65dc274b5837a185ab13f
Commit Summary:
Diffstat:
1 file changed, 17 insertions, 6 deletions
diff --git a/scripts/atomic/check-atomics.sh b/scripts/atomic/check-atomics.sh
index c30101cddf2d..cfa0c2f71c84 100755
--- a/scripts/atomic/check-atomics.sh
+++ b/scripts/atomic/check-atomics.sh
@@ -7,13 +7,27 @@ ATOMICDIR=$(dirname $0)
ATOMICTBL=${ATOMICDIR}/atomics.tbl
LINUXDIR=${ATOMICDIR}/../..
+echo '' | sha1sum - > /dev/null 2>&1
+if [ $? -ne 0 ]; then
+ printf "sha1sum not available, skipping atomic header checks.\n"
+ exit 0
+fi
+
cat <<EOF |
-gen-atomic-instrumented.sh asm-generic/atomic-instrumented.h
-gen-atomic-long.sh asm-generic/atomic-long.h
-gen-atomic-fallback.sh linux/atomic-fallback.h
+asm-generic/atomic-instrumented.h
+asm-generic/atomic-long.h
+linux/atomic-fallback.h
EOF
-while read script header; do
- if ! (${ATOMICDIR}/${script} ${ATOMICTBL} | diff - ${LINUXDIR}/include/${header} > /dev/null); then
- printf "warning: include/${header} is out-of-date.\n"
+while read header; do
+ OLDSUM="$(tail -n 1 ${LINUXDIR}/include/${header})"
+ OLDSUM="${OLDSUM#// }"
+
+ NEWSUM="$(head -n -1 ${LINUXDIR}/include/${header} | sha1sum)"
+ NEWSUM="${NEWSUM%% *}"
+
+ if [ "${OLDSUM}" != "${NEWSUM}" ]; then
+ printf "warning: generated include/${header} has been modified.\n"
fi
done
+
+exit 0