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From: "Masami Hiramatsu (Google)" <mhiramat@kernel.org>
To: Steven Rostedt <rostedt@goodmis.org>,
	Shuah Khan <skhan@linuxfoundation.org>
Cc: Andrii Nakryiko <andrii@kernel.org>,
	linux-trace-kernel@vger.kernel.org, bpf@vger.kernel.org,
	Francis Laniel <flaniel@linux.microsoft.com>,
	linux-kselftest@vger.kernel.org,
	Masami Hiramatsu <mhiramat@kernel.org>
Subject: [PATCH] selftests/ftrace: Add test case for a symbol in a module without module name
Date: Sat, 28 Oct 2023 12:34:12 +0900	[thread overview]
Message-ID: <169846405196.88147.17766692778800222203.stgit@devnote2> (raw)

From: Masami Hiramatsu (Google) <mhiramat@kernel.org>

Add a test case for probing on a symbol in a module without module name.
When probing on a symbol in a module, ftrace accepts both the syntax that
<MODNAME>:<SYMBOL> and <SYMBOL>. Current test case only checks the former
syntax. This adds a test for the latter one.

Signed-off-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
---
 .../ftrace/test.d/kprobe/kprobe_module.tc          |    6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_module.tc b/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_module.tc
index 7e74ee11edf9..4b32e1b9a8d3 100644
--- a/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_module.tc
+++ b/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_module.tc
@@ -13,6 +13,12 @@ fi
 MOD=trace_printk
 FUNC=trace_printk_irq_work
 
+:;: "Add an event on a module function without module name" ;:
+
+echo "p:event0 $FUNC" > kprobe_events
+test -d events/kprobes/event0 || exit_failure
+echo "-:kprobes/event0" >> kprobe_events
+
 :;: "Add an event on a module function without specifying event name" ;:
 
 echo "p $MOD:$FUNC" > kprobe_events


             reply	other threads:[~2023-10-28  3:34 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-10-28  3:34 Masami Hiramatsu (Google) [this message]
2026-07-14 14:42 ` [PATCH] selftests/ftrace: Add test case for a symbol in a module without module name Steven Rostedt
2026-07-15  1:55   ` Masami Hiramatsu
2026-07-15  1:58   ` Masami Hiramatsu

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