Add new test case kprobe_opt_types.tc which enables and checks
if each probe has been optimized in order to test potential issues with
optimized probes.
The '|| continue' is added with the echo statement to ignore errors that
are caused by trying to add kprobes to non probeable lines and continue
with the test.
Signed-off-by: Akanksha J N <akanksha@xxxxxxxxxxxxx>
---
.../ftrace/test.d/kprobe/kprobe_opt_types.tc | 34 +++++++++++++++++++
1 file changed, 34 insertions(+)
create mode 100644 tools/testing/selftests/ftrace/test.d/kprobe/kprobe_opt_types.tc
diff --git a/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_opt_types.tc b/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_opt_types.tc
new file mode 100644
index 000000000000..54e4800b8a13
--- /dev/null
+++ b/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_opt_types.tc
@@ -0,0 +1,34 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0-or-later
+# Copyright (C) 2023 Akanksha J N, IBM corporation
+# description: Register/unregister optimized probe
+# requires: kprobe_events
+
+case `uname -m` in
+x86_64)
+;;
+arm*)
+;;
+ppc*)
+;;
+*)
+ echo "Please implement other architecture here"
+ exit_unsupported
+esac
+
+DEFAULT=$(cat /proc/sys/debug/kprobes-optimization)
+echo 1 > /proc/sys/debug/kprobes-optimization
+for i in `seq 0 255`; do
+ echo "p:testprobe $FUNCTION_FORK+${i}" > kprobe_events || continue
+ echo 1 > events/kprobes/enable || continue
+ (echo "forked")
+ PROBE_TYPE=$(cat /sys/kernel/debug/kprobes/list | grep $FUNCTION_FORK | awk '{print $4}' | awk '{print substr($0,2,length($0)-2)}')
+ echo 0 > events/kprobes/enable
+ echo > kprobe_events
+ if [ $PROBE_TYPE = "OPTIMIZED" ]; then
+ echo "$DEFAULT" > /proc/sys/debug/kprobes-optimization
+ exit_pass
+ fi
+done
+echo "$DEFAULT" > /proc/sys/debug/kprobes-optimization
+echo "Done"
--
2.31.1
