check_error '^p:kprobes/testevent _do_fork abcd=\1' # SAME_PROBE
fi
+# %return suffix errors
+if grep -q "place (kretprobe): .*%return.*" README; then
+check_error 'p vfs_read^%hoge' # BAD_ADDR_SUFFIX
+check_error 'p ^vfs_read+10%return' # BAD_RETPROBE
+fi
+
exit 0
--- /dev/null
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+# description: Kretprobe %%return suffix test
+# requires: kprobe_events '<symbol>[+<offset>]%return':README
+
+# Test for kretprobe by "r"
+echo 'r:myprobeaccept vfs_read' > kprobe_events
+RESULT1=`cat kprobe_events`
+
+# Test for kretprobe by "%return"
+echo 'p:myprobeaccept vfs_read%return' > kprobe_events
+RESULT2=`cat kprobe_events`
+
+if [ "$RESULT1" != "$RESULT2" ]; then
+ echo "Error: %return suffix didn't make a return probe."
+ echo "r-command: $RESULT1"
+ echo "%return: $RESULT2"
+ exit_fail
+fi
+
+echo > kprobe_events
check_error 'p /bin/sh:10 ^@+ab' # BAD_FILE_OFFS
check_error 'p /bin/sh:10 ^@symbol' # SYM_ON_UPROBE
+# %return suffix error
+if grep -q "place (uprobe): .*%return.*" README; then
+check_error 'p /bin/sh:10^%hoge' # BAD_ADDR_SUFFIX
+check_error 'p /bin/sh:10(10)^%return' # BAD_REFCNT_SUFFIX
+fi
+
exit 0