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| author |   Masami Hiramatsu (Google) <mhiramat@kernel.org> | 2023-08-23 01:26:42 +0900 |
|---|---|---|
| committer | Masami Hiramatsu (Google) <mhiramat@kernel.org> | 2023-08-23 09:41:32 +0900 |
| commit | 08c9306fc2e32b037ad93127ef784d86699c523a (patch) | |
| tree | f9fcaaf9610ec90a09b33b6d4b8cc8a63534d6e6 /tools/testing/selftests/ftrace | |
| parent | tracing/probes: Add string type check with BTF (diff) | |
| download | wireguard-linux-08c9306fc2e32b037ad93127ef784d86699c523a.tar.xz wireguard-linux-08c9306fc2e32b037ad93127ef784d86699c523a.zip | |
tracing/fprobe-event: Assume fprobe is a return event by $retval
Assume the fprobe event is a return event if there is $retval is
used in the probe's argument without %return. e.g.
echo 'f:myevent vfs_read $retval' >> dynamic_events
then 'myevent' is a return probe event.
Link: https://lore.kernel.org/all/169272160261.160970.13613040161560998787.stgit@devnote2/
Suggested-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Acked-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Diffstat (limited to 'tools/testing/selftests/ftrace')
| -rw-r--r-- | tools/testing/selftests/ftrace/test.d/dynevent/fprobe_syntax_errors.tc | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/tools/testing/selftests/ftrace/test.d/dynevent/fprobe_syntax_errors.tc b/tools/testing/selftests/ftrace/test.d/dynevent/fprobe_syntax_errors.tc index 812f5b3f6055..72563b2e0812 100644 --- a/tools/testing/selftests/ftrace/test.d/dynevent/fprobe_syntax_errors.tc +++ b/tools/testing/selftests/ftrace/test.d/dynevent/fprobe_syntax_errors.tc @@ -30,11 +30,11 @@ check_error 'f:^ vfs_read' # NO_EVENT_NAME check_error 'f:foo/^12345678901234567890123456789012345678901234567890123456789012345 vfs_read' # EVENT_TOO_LONG check_error 'f:foo/^bar.1 vfs_read' # BAD_EVENT_NAME -check_error 'f vfs_read ^$retval' # RETVAL_ON_PROBE check_error 'f vfs_read ^$stack10000' # BAD_STACK_NUM check_error 'f vfs_read ^$arg10000' # BAD_ARG_NUM +check_error 'f vfs_read $retval ^$arg1' # BAD_VAR check_error 'f vfs_read ^$none_var' # BAD_VAR check_error 'f vfs_read ^'$REG # BAD_VAR |