On Thu, 19 Aug 2021 11:26:09 -0400 Steven Rostedt <rostedt@xxxxxxxxxxx> wrote: > From: "Steven Rostedt (VMware)" <rostedt@xxxxxxxxxxx> > > Add a selftest that makes sure that eprobes and kprobes can not be created > with the same group and name as existing events. Hmm, can you also remove kprobe event dependency from this test case? The event probe depends on CONFIG_PROBE_EVENTS meta config, but that is enabled both of CONFIG_KPROBE_EVENTS and CONFIG_UPROBE_EVENTS. This means if the kernel configs CONFIG_KPROBE_EVENTS=n and CONFIG_UPROBE_EVENTS=y, this will be executed but should fail. Thank you, > > Cc: Shuah Khan <shuah@xxxxxxxxxx> > Cc: Shuah Khan <skhan@xxxxxxxxxxxxxxxxxxx> > Cc: linux-kselftest@xxxxxxxxxxxxxxx > Signed-off-by: Steven Rostedt (VMware) <rostedt@xxxxxxxxxxx> > --- > .../ftrace/test.d/dynevent/test_duplicates.tc | 28 +++++++++++++++++++ > 1 file changed, 28 insertions(+) > create mode 100644 tools/testing/selftests/ftrace/test.d/dynevent/test_duplicates.tc > > diff --git a/tools/testing/selftests/ftrace/test.d/dynevent/test_duplicates.tc b/tools/testing/selftests/ftrace/test.d/dynevent/test_duplicates.tc > new file mode 100644 > index 000000000000..022b569267ed > --- /dev/null > +++ b/tools/testing/selftests/ftrace/test.d/dynevent/test_duplicates.tc > @@ -0,0 +1,28 @@ > +#!/bin/sh > +# SPDX-License-Identifier: GPL-2.0 > +# description: Generic dynamic event - check if duplicate events are caught > +# requires: dynamic_events "e[:[<group>/]<event>] <attached-group>.<attached-event>o [<args>]":README > + > +echo 0 > events/enable > + > +clear_dynamic_events > + > +# first create dynamic events for eprobes and kprobes. > + > +echo 'e:egroup/eevent syscalls/sys_enter_openat file=+0($filename):ustring' >> dynamic_events > +echo 'p:kgroup/kevent vfs_open file=+0($arg2)' >> dynamic_events > + > +# Test eprobe for same eprobe, existing kprobe and existing event > +! echo 'e:egroup/eevent syscalls/sys_enter_openat file=+0($filename):ustring' >> dynamic_events > +! echo 'e:kgroup/kevent syscalls/sys_enter_openat file=+0($filename):ustring' >> dynamic_events > +! echo 'e:syscalls/sys_enter_open syscalls/sys_enter_openat file=+0($filename):ustring' >> dynamic_events > + > +# Test kprobe for same kprobe, existing eprobe and existing event > +! echo 'p:kgroup/kevent vfs_open file=+0($arg2)' >> dynamic_events > +! echo 'p:egroup/eevent vfs_open file=+0($arg2)' >> dynamic_events > +! echo 'p:syscalls/sys_enter_open vfs_open file=+0($arg2)' >> dynamic_events > + > +echo '-:egroup/eevent' >> dynamic_events > +echo '-:kgroup/kevent' >> dynamic_events > + > +clear_trace > -- > 2.30.2 -- Masami Hiramatsu <mhiramat@xxxxxxxxxx>
