From 8ac6c7a54ed1b98d142dce24b11c6de6a1e239a5 Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Tue, 22 Oct 2024 10:36:11 +0000
Subject: [PATCH] 修改4g拨号为QMI,需要在系统里后台执行quectel-CM

---
 kernel/tools/testing/selftests/ftrace/test.d/kprobe/kretprobe_args.tc |   14 ++++++++------
 1 files changed, 8 insertions(+), 6 deletions(-)

diff --git a/kernel/tools/testing/selftests/ftrace/test.d/kprobe/kretprobe_args.tc b/kernel/tools/testing/selftests/ftrace/test.d/kprobe/kretprobe_args.tc
index 3219546..197cc2a 100644
--- a/kernel/tools/testing/selftests/ftrace/test.d/kprobe/kretprobe_args.tc
+++ b/kernel/tools/testing/selftests/ftrace/test.d/kprobe/kretprobe_args.tc
@@ -1,16 +1,18 @@
 #!/bin/sh
 # SPDX-License-Identifier: GPL-2.0
 # description: Kretprobe dynamic event with arguments
+# requires: kprobe_events
 
-[ -f kprobe_events ] || exit_unsupported # this is configurable
-
-echo 0 > events/enable
-echo > kprobe_events
-echo 'r:testprobe2 _do_fork $retval' > kprobe_events
-grep testprobe2 kprobe_events
+# Add new kretprobe event
+echo "r:testprobe2 $FUNCTION_FORK \$retval" > kprobe_events
+grep testprobe2 kprobe_events | grep -q 'arg1=\$retval'
 test -d events/kprobes/testprobe2
+
 echo 1 > events/kprobes/testprobe2/enable
 ( echo "forked")
+
+cat trace | grep testprobe2 | grep -q "<- $FUNCTION_FORK"
+
 echo 0 > events/kprobes/testprobe2/enable
 echo '-:testprobe2' >> kprobe_events
 clear_trace

--
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