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    Subject[PATCH v2 18/32] selftests/ftrace: Add kprobe profile testcase
    Date
    Add a testcase for testing kprobe_profile interface
    which provides per-kprobe event hit/misshit counts.

    Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
    ---
    .../selftests/ftrace/test.d/kprobe/profile.tc | 15 +++++++++++++++
    1 file changed, 15 insertions(+)
    create mode 100644 tools/testing/selftests/ftrace/test.d/kprobe/profile.tc

    diff --git a/tools/testing/selftests/ftrace/test.d/kprobe/profile.tc b/tools/testing/selftests/ftrace/test.d/kprobe/profile.tc
    new file mode 100644
    index 000000000000..0384b525cdee
    --- /dev/null
    +++ b/tools/testing/selftests/ftrace/test.d/kprobe/profile.tc
    @@ -0,0 +1,15 @@
    +#!/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
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