Commit 32f6e5da authored by Masami Hiramatsu's avatar Masami Hiramatsu Committed by Shuah Khan (Samsung OSG)
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selftests/ftrace: Add kprobe profile testcase 



Add a testcase for testing kprobe_profile interface
which provides per-kprobe event hit/misshit counts.

Signed-off-by: default avatarMasami Hiramatsu <mhiramat@kernel.org>
Signed-off-by: default avatarShuah Khan (Samsung OSG) <shuah@kernel.org>
parent b0898e84

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

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+15 −0
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#!/bin/sh

# SPDX-License-Identifier: GPL-2.0

# description: Kprobe dynamic event - adding and removing



[ -f kprobe_events ] || exit_unsupported # this is configurable



! grep -q 'myevent' kprobe_profile

echo p:myevent _do_fork > kprobe_events

grep -q 'myevent[[:space:]]*0[[:space:]]*0$' kprobe_profile

echo 1 > events/kprobes/myevent/enable

( echo "forked" )

grep -q 'myevent[[:space:]]*[[:digit:]]*[[:space:]]*0$' kprobe_profile

echo 0 > events/kprobes/myevent/enable

echo > kprobe_events

! grep -q 'myevent' kprobe_profile