kernel/trace/trace_events_synth.c

3  * trace_events_synth - synthetic trace events
19 #include <trace/events/mmflags.h>
135 	struct synth_trace_event trace;
136 	int offset = offsetof(typeof(trace), fields);
427 	.trace		= print_synth_event
1418  * trace/events/synthetic/ directory.  The event fields that will be
1425  * param must be non-NULL.  This will ensure that the trace buffer
1642 	 * trace case, we save the enabled state upon start and just
1893  * synth_event_trace_start - Start piecewise synthetic event trace
1895  * @trace_state: A pointer to object tracking the piecewise trace state
1897  * Start the trace of a synthetic event field-by-field rather than all
1900  * This function 'opens' an event trace, which means space is reserved
1901  * for the event in the trace buffer, after which the event's
1906  * track of the current event trace state until the event trace is
1911  * have been added for each event trace, regardless of whether adding
1914  * Note also that for a given event trace, all fields must be added
2035  * synth_event_add_next_val - Add the next field's value to an open synth trace
2037  * @trace_state: A pointer to object tracking the piecewise trace state
2053  * synth_event_add_val() can't be intermixed for a given event trace -
2057  * values have been added for each event trace, regardless of whether
2070  * synth_event_add_val - Add a named field's value to an open synth trace
2073  * @trace_state: A pointer to object tracking the piecewise trace state
2088  * synth_event_add_val() can't be intermixed for a given event trace -
2092  * values have been added for each event trace, regardless of whether
2105  * synth_event_trace_end - End piecewise synthetic event trace
2106  * @trace_state: A pointer to object tracking the piecewise trace state
2108  * End the trace of a synthetic event opened by
2111  * This function 'closes' an event trace, which basically means that
2115  * track of the current event trace state opened with
2119  * added for each event trace, regardless of whether adding all field