diff options
| author | Cong Wang <xiyou.wangcong@gmail.com> | 2019-05-25 09:58:01 -0700 |
|---|---|---|
| committer | Steven Rostedt (VMware) <rostedt@goodmis.org> | 2019-07-16 15:14:48 -0400 |
| commit | 0aeb1def44169cbe7119f26cf10b974a2046142e (patch) | |
| tree | a6cb17c4e7cb611b4ccc619702d4cb9b37da227b /include/linux/trace_events.h | |
| parent | 5967bd5c4239be449744a1471daf60c866486c24 (diff) | |
tracing: Make trace_get_fields() global
trace_get_fields() is the only way to read tracepoint fields at
run time, as their fields are defined at compile-time with macros.
Make this function visible to all users and it will be used by
trace event injection code to calculate the size of a tracepoint
entry.
Link: http://lkml.kernel.org/r/20190525165802.25944-4-xiyou.wangcong@gmail.com
Cc: Ingo Molnar <mingo@redhat.com>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Diffstat (limited to 'include/linux/trace_events.h')
| -rw-r--r-- | include/linux/trace_events.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/include/linux/trace_events.h b/include/linux/trace_events.h index 5c6f2a6c8cd2..5150436783e8 100644 --- a/include/linux/trace_events.h +++ b/include/linux/trace_events.h @@ -318,6 +318,14 @@ trace_event_name(struct trace_event_call *call) return call->name; } +static inline struct list_head * +trace_get_fields(struct trace_event_call *event_call) +{ + if (!event_call->class->get_fields) + return &event_call->class->fields; + return event_call->class->get_fields(event_call); +} + struct trace_array; struct trace_subsystem_dir; |