On Fri, 20 Aug 2021 16:46:48 -0400 Steven Rostedt <rostedt@xxxxxxxxxxx> wrote: > From: "Steven Rostedt (VMware)" <rostedt@xxxxxxxxxxx> > > Add a test case that adds an event probe, makes sure that it works, and > then removes it. > > Link: https://lore.kernel.org/linux-kselftest/20210819152825.526931866@xxxxxxxxxxx/ > > Cc: Shuah Khan <shuah@xxxxxxxxxx> > Cc: Shuah Khan <skhan@xxxxxxxxxxxxxxxxxxx> > Cc: linux-kselftest@xxxxxxxxxxxxxxx > Signed-off-by: Steven Rostedt (VMware) <rostedt@xxxxxxxxxxx> This looks good to me. Acked-by: Masami Hiramatsu <mhiramat@xxxxxxxxxx> Thank you! > --- > .../test.d/dynevent/add_remove_eprobe.tc | 40 +++++++++++++++++++ > 1 file changed, 40 insertions(+) > create mode 100644 tools/testing/selftests/ftrace/test.d/dynevent/add_remove_eprobe.tc > > diff --git a/tools/testing/selftests/ftrace/test.d/dynevent/add_remove_eprobe.tc b/tools/testing/selftests/ftrace/test.d/dynevent/add_remove_eprobe.tc > new file mode 100644 > index 000000000000..25a3da4eaa44 > --- /dev/null > +++ b/tools/testing/selftests/ftrace/test.d/dynevent/add_remove_eprobe.tc > @@ -0,0 +1,40 @@ > +#!/bin/sh > +# SPDX-License-Identifier: GPL-2.0 > +# description: Generic dynamic event - add/remove eprobe events > +# requires: dynamic_events events/syscalls/sys_enter_openat "e[:[<group>/]<event>] <attached-group>.<attached-event> [<args>]":README > + > +echo 0 > events/enable > + > +clear_dynamic_events > + > +SYSTEM="syscalls" > +EVENT="sys_enter_openat" > +FIELD="filename" > +EPROBE="eprobe_open" > + > +echo "e:$EPROBE $SYSTEM/$EVENT file=+0(\$filename):ustring" >> dynamic_events > + > +grep -q "$EPROBE" dynamic_events > +test -d events/eprobes/$EPROBE > + > +echo 1 > events/eprobes/$EPROBE/enable > +ls > +echo 0 > events/eprobes/$EPROBE/enable > + > +content=`grep '^ *ls-' trace | grep 'file='` > +nocontent=`grep '^ *ls-' trace | grep 'file=' | grep -v -e '"/' -e '"."'` || true > + > +if [ -z "$content" ]; then > + exit_fail > +fi > + > +if [ ! -z "$nocontent" ]; then > + exit_fail > +fi > + > +echo "-:$EPROBE" >> dynamic_events > + > +! grep -q "$EPROBE" dynamic_events > +! test -d events/eprobes/$EPROBE > + > +clear_trace > -- > 2.30.2 -- Masami Hiramatsu <mhiramat@xxxxxxxxxx>
