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From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: Colin Ian King <colin.king@canonical.com>,
	Masami Hiramatsu <mhiramat@kernel.org>,
	Steven Rostedt <rostedt@goodmis.org>,
	Shuah Khan <skhan@linuxfoundation.org>,
	Sasha Levin <sashal@kernel.org>,
	linux-kselftest@vger.kernel.org
Subject: [PATCH AUTOSEL 5.4 06/42] selftests/ftrace: check for do_sys_openat2 in user-memory test
Date: Mon,  9 Nov 2020 22:54:04 -0500	[thread overview]
Message-ID: <20201110035440.424258-6-sashal@kernel.org> (raw)
In-Reply-To: <20201110035440.424258-1-sashal@kernel.org>

From: Colin Ian King <colin.king@canonical.com>

[ Upstream commit e3e40312567087fbe6880f316cb2b0e1f3d8a82c ]

More recent libc implementations are now using openat/openat2 system
calls so also add do_sys_openat2 to the tracing so that the test
passes on these systems because do_sys_open may not be called.

Thanks to Masami Hiramatsu for the help on getting this fix to work
correctly.

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Acked-by: Masami Hiramatsu <mhiramat@kernel.org>
Acked-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 .../selftests/ftrace/test.d/kprobe/kprobe_args_user.tc        | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_args_user.tc b/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_args_user.tc
index 0f60087583d8f..a753c73d869ab 100644
--- a/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_args_user.tc
+++ b/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_args_user.tc
@@ -11,12 +11,16 @@ grep -A10 "fetcharg:" README | grep -q '\[u\]<offset>' || exit_unsupported
 :;: "user-memory access syntax and ustring working on user memory";:
 echo 'p:myevent do_sys_open path=+0($arg2):ustring path2=+u0($arg2):string' \
 	> kprobe_events
+echo 'p:myevent2 do_sys_openat2 path=+0($arg2):ustring path2=+u0($arg2):string' \
+	>> kprobe_events
 
 grep myevent kprobe_events | \
 	grep -q 'path=+0($arg2):ustring path2=+u0($arg2):string'
 echo 1 > events/kprobes/myevent/enable
+echo 1 > events/kprobes/myevent2/enable
 echo > /dev/null
 echo 0 > events/kprobes/myevent/enable
+echo 0 > events/kprobes/myevent2/enable
 
 grep myevent trace | grep -q 'path="/dev/null" path2="/dev/null"'
 
-- 
2.27.0


       reply	other threads:[~2020-11-10  4:03 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <20201110035440.424258-1-sashal@kernel.org>
2020-11-10  3:54 ` Sasha Levin [this message]
2020-11-10  3:54 ` [PATCH AUTOSEL 5.4 07/42] selftests: pidfd: fix compilation errors due to wait.h Sasha Levin
2020-11-10  3:54 ` [PATCH AUTOSEL 5.4 37/42] selftests: proc: fix warning: _GNU_SOURCE redefined Sasha Levin

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