diff options
| author |   Francis Laniel <flaniel@linux.microsoft.com> | 2023-10-20 13:42:50 +0300 |
|---|---|---|
| committer |   Masami Hiramatsu (Google) <mhiramat@kernel.org> | 2023-10-20 22:11:49 +0900 |
| commit | 03b80ff8023adae6780e491f66e932df8165e3a0 (patch) | |
| tree | 11d1458c483eea77ea3c511b52c41ac0b37ab5fa /tools/testing/selftests/ftrace | |
| parent | tracing/kprobes: Return EADDRNOTAVAIL when func matches several symbols (diff) | |
| download | wireguard-linux-03b80ff8023adae6780e491f66e932df8165e3a0.tar.xz wireguard-linux-03b80ff8023adae6780e491f66e932df8165e3a0.zip | |
selftests/ftrace: Add new test case which checks non unique symbol
If name_show() is non unique, this test will try to install a kprobe on this
function which should fail returning EADDRNOTAVAIL.
On kernel where name_show() is not unique, this test is skipped.
Link: https://lore.kernel.org/all/20231020104250.9537-3-flaniel@linux.microsoft.com/
Cc: stable@vger.kernel.org
Signed-off-by: Francis Laniel <flaniel@linux.microsoft.com>
Acked-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Signed-off-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Diffstat (limited to 'tools/testing/selftests/ftrace')
| -rw-r--r-- | tools/testing/selftests/ftrace/test.d/kprobe/kprobe_non_uniq_symbol.tc | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_non_uniq_symbol.tc b/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_non_uniq_symbol.tc new file mode 100644 index 000000000000..bc9514428dba --- /dev/null +++ b/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_non_uniq_symbol.tc @@ -0,0 +1,13 @@ +#!/bin/sh +# SPDX-License-Identifier: GPL-2.0 +# description: Test failure of registering kprobe on non unique symbol +# requires: kprobe_events + +SYMBOL='name_show' + +# We skip this test on kernel where SYMBOL is unique or does not exist. +if [ "$(grep -c -E "[[:alnum:]]+ t ${SYMBOL}" /proc/kallsyms)" -le '1' ]; then + exit_unsupported +fi + +! echo "p:test_non_unique ${SYMBOL}" > kprobe_events |