Commit c01768b0 authored by Ye Bin's avatar Ye Bin Committed by Masami Hiramatsu (Google)
Browse files

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

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

This test case require enable CONFIG_HAVE_FUNCTION_ARG_ACCESS_API configuration.

Link: https://lore.kernel.org/all/20240322064308.284457-5-yebin10@huawei.com/



Signed-off-by: default avatarYe Bin <yebin10@huawei.com>
Acked-by: default avatarMasami Hiramatsu (Google) <mhiramat@kernel.org>
Signed-off-by: default avatarMasami Hiramatsu (Google) <mhiramat@kernel.org>
parent 5e37460f

tools/testing/selftests/ftrace/test.d/kprobe/kprobe_args_vfs.tc

0 → 100644
+40 −0
Original line number Diff line number Diff line 
#!/bin/sh

# SPDX-License-Identifier: GPL-2.0

# description: Kprobe event VFS type argument

# requires: kprobe_events "%pd/%pD":README



: "Test argument %pd with name"

echo 'p:testprobe dput name=$arg1:%pd' > kprobe_events

echo 1 > events/kprobes/testprobe/enable

grep -q "1" events/kprobes/testprobe/enable

echo 0 > events/kprobes/testprobe/enable

grep "dput" trace | grep -q "enable"

echo "" > kprobe_events

echo "" > trace



: "Test argument %pd without name"

echo 'p:testprobe dput $arg1:%pd' > kprobe_events

echo 1 > events/kprobes/testprobe/enable

grep -q "1" events/kprobes/testprobe/enable

echo 0 > events/kprobes/testprobe/enable

grep "dput" trace | grep -q "enable"

echo "" > kprobe_events

echo "" > trace



: "Test argument %pD with name"

echo 'p:testprobe vfs_read name=$arg1:%pD' > kprobe_events

echo 1 > events/kprobes/testprobe/enable

grep -q "1" events/kprobes/testprobe/enable

echo 0 > events/kprobes/testprobe/enable

grep "vfs_read" trace | grep -q "enable"

echo "" > kprobe_events

echo "" > trace



: "Test argument %pD without name"

echo 'p:testprobe vfs_read $arg1:%pD' > kprobe_events

echo 1 > events/kprobes/testprobe/enable

grep -q "1"  events/kprobes/testprobe/enable

echo 0 > events/kprobes/testprobe/enable

grep "vfs_read" trace | grep -q "enable"

echo "" > kprobe_events

echo "" > trace