selftests/ftrace: add fprobe test cases for VFS type "%pd" and "%pD"

This patch adds fprobe test cases for new print format type "%pd/%pD".The
test cases test the following items:
1. Test "%pd" type for dput();
2. Test "%pD" type for vfs_read();

This test case require enable CONFIG_HAVE_FUNCTION_ARG_ACCESS_API configuration.

Link: https://lore.kernel.org/all/20240322064308.284457-6-yebin10@huawei.com/
Signed-off-by: Ye Bin <yebin10@huawei.com>
Acked-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Signed-off-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>

diff --git a/tools/testing/selftests/ftrace/test.d/dynevent/fprobe_args_vfs.tc b/tools/testing/selftests/ftrace/test.d/dynevent/fprobe_args_vfs.tc
new file mode 100644 (file)
index 0000000..49a833b
--- /dev/null
+++ b/tools/testing/selftests/ftrace/test.d/dynevent/fprobe_args_vfs.tc
@@ -0,0 +1,40 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+# description: Fprobe event VFS type argument
+# requires: kprobe_events "%pd/%pD":README
+
+: "Test argument %pd with name for fprobe"
+echo 'f:testprobe dput name=$arg1:%pd' > dynamic_events
+echo 1 > events/fprobes/testprobe/enable
+grep -q "1" events/fprobes/testprobe/enable
+echo 0 > events/fprobes/testprobe/enable
+grep "dput" trace | grep -q "enable"
+echo "" > dynamic_events
+echo "" > trace
+
+: "Test argument %pd without name for fprobe"
+echo 'f:testprobe dput $arg1:%pd' > dynamic_events
+echo 1 > events/fprobes/testprobe/enable
+grep -q "1" events/fprobes/testprobe/enable
+echo 0 > events/fprobes/testprobe/enable
+grep "dput" trace | grep -q "enable"
+echo "" > dynamic_events
+echo "" > trace
+
+: "Test argument %pD with name for fprobe"
+echo 'f:testprobe vfs_read name=$arg1:%pD' > dynamic_events
+echo 1 > events/fprobes/testprobe/enable
+grep -q "1" events/fprobes/testprobe/enable
+echo 0 > events/fprobes/testprobe/enable
+grep "vfs_read" trace | grep -q "enable"
+echo "" > dynamic_events
+echo "" > trace
+
+: "Test argument %pD without name for fprobe"
+echo 'f:testprobe vfs_read $arg1:%pD' > dynamic_events
+echo 1 > events/fprobes/testprobe/enable
+grep -q "1"  events/fprobes/testprobe/enable
+echo 0 > events/fprobes/testprobe/enable
+grep "vfs_read" trace | grep -q "enable"
+echo "" > dynamic_events
+echo "" > trace