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selftests/ftrace: Add test case for a symbol in a module without module name

Message ID 169846405196.88147.17766692778800222203.stgit@devnote2 (mailing list archive)
State New
Headers show
Series selftests/ftrace: Add test case for a symbol in a module without module name | expand

Commit Message

Masami Hiramatsu (Google) Oct. 28, 2023, 3:34 a.m. UTC 
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(+)
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Patch

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