/* * Like the headers that use TRACE_EVENT(), the TRACE_CUSTOM_EVENT() * needs a header that allows for multiple inclusions. * * Test for a unique name (here we have _TRACE_CUSTOM_SCHED_H), * also allowing to continue if TRACE_CUSTOM_MULTI_READ is defined.
*/ #if !defined(_TRACE_CUSTOM_SCHED_H) || defined(TRACE_CUSTOM_MULTI_READ) #define _TRACE_CUSTOM_SCHED_H
/* Include linux/trace_events.h for initial defines of TRACE_CUSTOM_EVENT() */ #include <linux/trace_events.h>
/* * TRACE_CUSTOM_EVENT() is just like TRACE_EVENT(). The first parameter * is the event name of an existing event where the TRACE_EVENT has been included * in the C file before including this file.
*/
TRACE_CUSTOM_EVENT(sched_switch,
/* * The TP_PROTO() and TP_ARGS must match the trace event * that the custom event is using.
*/
TP_PROTO(bool preempt, struct task_struct *prev, struct task_struct *next, unsignedint prev_state),
TP_ARGS(preempt, prev, next, prev_state),
/* * The next fields are where the customization happens. * The TP_STRUCT__entry() defines what will be recorded * in the ring buffer when the custom event triggers. * * The rest is just like the TRACE_EVENT() macro except that * it uses the custom entry.
*/
TP_STRUCT__entry(
__field( unsignedshort, prev_prio )
__field( unsignedshort, next_prio )
__field( pid_t, next_pid )
),
TP_printk("pid=%d prio=%d", __entry->pid, __entry->prio)
) #endif /* * Just like the headers that create TRACE_EVENTs, the below must * be outside the protection of the above #if block.
*/
/* * It is required that the Makefile includes: * CFLAGS_<c_file>.o := -I$(src)
*/ #undef TRACE_INCLUDE_PATH #undef TRACE_INCLUDE_FILE #define TRACE_INCLUDE_PATH .
/* * It is requred that the TRACE_INCLUDE_FILE be the same * as this file without the ".h".
*/ #define TRACE_INCLUDE_FILE trace_custom_sched #include <trace/define_custom_trace.h>
Die Informationen auf dieser Webseite wurden
nach bestem Wissen sorgfältig zusammengestellt. Es wird jedoch weder Vollständigkeit, noch Richtigkeit,
noch Qualität der bereit gestellten Informationen zugesichert.
Bemerkung:
Die farbliche Syntaxdarstellung und die Messung sind noch experimentell.