selftests/ftrace: Add '!event' synthetic event syntax check

Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git

kernel os linux

Add a check confirming that '!event' alone will remove a synthetic
event.

Link: https://lkml.kernel.org/r/1dff3f03d18542cece08c10d6323d8a8dba11e42.1612208610.git.zanussi@kernel.org

Signed-off-by: Tom Zanussi <zanussi@kernel.org>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>

authored by

Tom Zanussi and committed by

Steven Rostedt (VMware) 5 years ago 7d536753 b5734e99

1 changed file

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tools

testing

selftests

ftrace

test.d

trigger

inter-event

trigger-synthetic-event-syntax.tc

tools/testing/selftests/ftrace/test.d/trigger/inter-event/trigger-synthetic-event-syntax.tc

··· 32 32 # it is not possible to add same name event 33 33 ! echo "myevent u64 var2" >> synthetic_events 34 34 35 + # make sure !synthetic event doesn't require a field 36 + echo "!myevent" >> synthetic_events 37 + echo "myevent u64 var1" >> synthetic_events 38 + 35 39 # Non-append open will cleanup all events and add new one 36 40 echo "myevent u64 var2" > synthetic_events 37 41