selftests/ftrace: check for do_sys_openat2 in user-memory test
[ Upstream commit e3e4031256
]
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>
5.4-rM2-2.2.x-imx-squashed
parent
1737ea0c57
commit
9110e2f263
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@ -11,12 +11,16 @@ grep -A10 "fetcharg:" README | grep -q '\[u\]<offset>' || exit_unsupported
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:;: "user-memory access syntax and ustring working on user memory";:
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echo 'p:myevent do_sys_open path=+0($arg2):ustring path2=+u0($arg2):string' \
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> kprobe_events
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echo 'p:myevent2 do_sys_openat2 path=+0($arg2):ustring path2=+u0($arg2):string' \
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>> kprobe_events
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grep myevent kprobe_events | \
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grep -q 'path=+0($arg2):ustring path2=+u0($arg2):string'
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echo 1 > events/kprobes/myevent/enable
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echo 1 > events/kprobes/myevent2/enable
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echo > /dev/null
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echo 0 > events/kprobes/myevent/enable
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echo 0 > events/kprobes/myevent2/enable
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grep myevent trace | grep -q 'path="/dev/null" path2="/dev/null"'
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