Commit dbc3f042 authored by Masami Hiramatsu's avatar Masami Hiramatsu Committed by Steven Rostedt (VMware)
Browse files

selftests/ftrace: Add testcases for dynamic event 

Add common testcases for dynamic_events interface.
 - Add/remove kprobe events via dynamic_events
 - Add/remove synthetic events via dynamic_events
 - Selective clear events (clear events other interfaces)
 - Genelic clear events ("!LINE" syntax)

Link: http://lkml.kernel.org/r/154140872590.17322.10394440849261743052.stgit@devbox



Reviewed-by: default avatarTom Zanussi <tom.zanussi@linux.intel.com>
Tested-by: default avatarTom Zanussi <tom.zanussi@linux.intel.com>
Signed-off-by: default avatarMasami Hiramatsu <mhiramat@kernel.org>
Signed-off-by: default avatarSteven Rostedt (VMware) <rostedt@goodmis.org>
parent 1ce25e9f

tools/testing/selftests/ftrace/test.d/dynevent/add_remove_kprobe.tc

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#!/bin/sh

# SPDX-License-Identifier: GPL-2.0

# description: Generic dynamic event - add/remove kprobe events



[ -f dynamic_events ] || exit_unsupported



grep -q "place: \[<module>:\]<symbol>" README || exit_unsupported

grep -q "place (kretprobe): \[<module>:\]<symbol>" README || exit_unsupported



echo 0 > events/enable

echo > dynamic_events



PLACE=_do_fork



echo "p:myevent1 $PLACE" >> dynamic_events

echo "r:myevent2 $PLACE" >> dynamic_events



grep -q myevent1 dynamic_events

grep -q myevent2 dynamic_events

test -d events/kprobes/myevent1

test -d events/kprobes/myevent2



echo "-:myevent2" >> dynamic_events



grep -q myevent1 dynamic_events

! grep -q myevent2 dynamic_events



echo > dynamic_events



clear_trace

tools/testing/selftests/ftrace/test.d/dynevent/add_remove_synth.tc

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#!/bin/sh

# SPDX-License-Identifier: GPL-2.0

# description: Generic dynamic event - add/remove synthetic events



[ -f dynamic_events ] || exit_unsupported



grep -q "s:\[synthetic/\]" README || exit_unsupported



echo 0 > events/enable

echo > dynamic_events



echo "s:latency1 u64 lat; pid_t pid;" >> dynamic_events

echo "s:latency2 u64 lat; pid_t pid;" >> dynamic_events



grep -q latency1 dynamic_events

grep -q latency2 dynamic_events

test -d events/synthetic/latency1

test -d events/synthetic/latency2



echo "-:synthetic/latency2" >> dynamic_events



grep -q latency1 dynamic_events

! grep -q latency2 dynamic_events



echo > dynamic_events



clear_trace

tools/testing/selftests/ftrace/test.d/dynevent/clear_select_events.tc

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#!/bin/sh

# SPDX-License-Identifier: GPL-2.0

# description: Generic dynamic event - selective clear (compatibility)



[ -f dynamic_events ] || exit_unsupported



grep -q "place: \[<module>:\]<symbol>" README || exit_unsupported

grep -q "place (kretprobe): \[<module>:\]<symbol>" README || exit_unsupported



grep -q "s:\[synthetic/\]" README || exit_unsupported



[ -f synthetic_events ] || exit_unsupported

[ -f kprobe_events ] || exit_unsupported



echo 0 > events/enable

echo > dynamic_events



PLACE=_do_fork



setup_events() {

echo "p:myevent1 $PLACE" >> dynamic_events

echo "s:latency1 u64 lat; pid_t pid;" >> dynamic_events

echo "r:myevent2 $PLACE" >> dynamic_events

echo "s:latency2 u64 lat; pid_t pid;" >> dynamic_events



grep -q myevent1 dynamic_events

grep -q myevent2 dynamic_events

grep -q latency1 dynamic_events

grep -q latency2 dynamic_events

}



setup_events

echo > synthetic_events



grep -q myevent1 dynamic_events

grep -q myevent2 dynamic_events

! grep -q latency1 dynamic_events

! grep -q latency2 dynamic_events



echo > dynamic_events



setup_events

echo > kprobe_events



! grep -q myevent1 dynamic_events

! grep -q myevent2 dynamic_events

grep -q latency1 dynamic_events

grep -q latency2 dynamic_events



echo > dynamic_events

tools/testing/selftests/ftrace/test.d/dynevent/generic_clear_event.tc

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#!/bin/sh

# SPDX-License-Identifier: GPL-2.0

# description: Generic dynamic event - generic clear event



[ -f dynamic_events ] || exit_unsupported



grep -q "place: \[<module>:\]<symbol>" README || exit_unsupported

grep -q "place (kretprobe): \[<module>:\]<symbol>" README || exit_unsupported



grep -q "s:\[synthetic/\]" README || exit_unsupported



echo 0 > events/enable

echo > dynamic_events



PLACE=_do_fork



setup_events() {

echo "p:myevent1 $PLACE" >> dynamic_events

echo "s:latency1 u64 lat; pid_t pid;" >> dynamic_events

echo "r:myevent2 $PLACE" >> dynamic_events

echo "s:latency2 u64 lat; pid_t pid;" >> dynamic_events



grep -q myevent1 dynamic_events

grep -q myevent2 dynamic_events

grep -q latency1 dynamic_events

grep -q latency2 dynamic_events

}



setup_events



echo "!p:myevent1 $PLACE" >> dynamic_events

! grep -q myevent1 dynamic_events

grep -q myevent2 dynamic_events

grep -q latency1 dynamic_events

grep -q latency2 dynamic_events



echo "!s:latency1 u64 lat; pid_t pid;" >> dynamic_events

grep -q myevent2 dynamic_events

! grep -q latency1 dynamic_events

grep -q latency2 dynamic_events



echo "!r:myevent2 $PLACE" >> dynamic_events

! grep -q myevent2 dynamic_events

grep -q latency2 dynamic_events



echo "!s:latency2 u64 lat; pid_t pid;" >> dynamic_events

! grep -q latency2 dynamic_events



echo > dynamic_events

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