The EPOCHSECONDS environment variable was added in bash 5.0 (released
2019). Some distributions of the "stable" and "long-term" variety ship
older versions of bash than this, so swap to using the date command
instead.
"%s" was added to coreutils `date` in 1993 so we should be good, but who
knows, it is a GNU extension and not part of the POSIX spec for `date`.
Signed-off-by: Russell Currey <rus...@russell.cc>
---
.../testing/selftests/powerpc/security/mitigation-patching.sh | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/tools/testing/selftests/powerpc/security/mitigation-patching.sh
b/tools/testing/selftests/powerpc/security/mitigation-patching.sh
index 00197acb7ff1..b0b20e0b4e30 100755
--- a/tools/testing/selftests/powerpc/security/mitigation-patching.sh
+++ b/tools/testing/selftests/powerpc/security/mitigation-patching.sh
@@ -13,7 +13,7 @@ function do_one
orig=$(cat "$mitigation")
- start=$EPOCHSECONDS
+ start=$(date +%s)
now=$start
while [[ $((now-start)) -lt "$TIMEOUT" ]]
@@ -21,7 +21,7 @@ function do_one
echo 0 > "$mitigation"
echo 1 > "$mitigation"
- now=$EPOCHSECONDS
+ now=$(date +%s)
done
echo "$orig" > "$mitigation"
--
2.33.1
