From: Yosry Ahmed <yosry.ahmed@linux.dev>
Date: Tue, 18 Mar 2025 16:05:10 +0000 (+0000)
Subject: selftests/run_kselftest.sh: Use readlink if realpath is not available
X-Git-Tag: v6.16-rc1~203^2
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=1107dc4c5b06188a3fb4897ceb197eb320a52e85;p=thirdparty%2Fkernel%2Flinux.git

selftests/run_kselftest.sh: Use readlink if realpath is not available

'realpath' is not always available,  fallback to 'readlink -f' if is not
available. They seem to work equally well in this context.

Link: https://lore.kernel.org/r/20250318160510.3441646-1-yosry.ahmed@linux.dev
Signed-off-by: Yosry Ahmed <yosry.ahmed@linux.dev>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
---

diff --git a/tools/testing/selftests/run_kselftest.sh b/tools/testing/selftests/run_kselftest.sh
index 50e03eefe7ac7..0443beacf3621 100755
--- a/tools/testing/selftests/run_kselftest.sh
+++ b/tools/testing/selftests/run_kselftest.sh
@@ -3,7 +3,14 @@
 #
 # Run installed kselftest tests.
 #
-BASE_DIR=$(realpath $(dirname $0))
+
+# Fallback to readlink if realpath is not available
+if which realpath > /dev/null; then
+        BASE_DIR=$(realpath $(dirname $0))
+else
+        BASE_DIR=$(readlink -f $(dirname $0))
+fi
+
 cd $BASE_DIR
 TESTS="$BASE_DIR"/kselftest-list.txt
 if [ ! -r "$TESTS" ] ; then