root/include/trace/events/task.h

#undef TRACE_SYSTEM
#define TRACE_SYSTEM task

#if !defined(_TRACE_TASK_H) || defined(TRACE_HEADER_MULTI_READ)
#define _TRACE_TASK_H
#include <linux/tracepoint.h>

TRACE_EVENT(task_newtask,

        TP_PROTO(struct task_struct *task, unsigned long clone_flags),

        TP_ARGS(task, clone_flags),

        TP_STRUCT__entry(
                __field(        pid_t,  pid)
                __array(        char,   comm, TASK_COMM_LEN)
                __field( unsigned long, clone_flags)
                __field(        short,  oom_score_adj)
        ),

        TP_fast_assign(
                __entry->pid = task->pid;
                memcpy(__entry->comm, task->comm, TASK_COMM_LEN);
                __entry->clone_flags = clone_flags;
                __entry->oom_score_adj = task->signal->oom_score_adj;
        ),

        TP_printk("pid=%d comm=%s clone_flags=%lx oom_score_adj=%hd",
                __entry->pid, __entry->comm,
                __entry->clone_flags, __entry->oom_score_adj)
);

TRACE_EVENT(task_rename,

        TP_PROTO(struct task_struct *task, const char *comm),

        TP_ARGS(task, comm),

        TP_STRUCT__entry(
                __field(        pid_t,  pid)
                __array(        char, oldcomm,  TASK_COMM_LEN)
                __array(        char, newcomm,  TASK_COMM_LEN)
                __field(        short,  oom_score_adj)
        ),

        TP_fast_assign(
                __entry->pid = task->pid;
                memcpy(entry->oldcomm, task->comm, TASK_COMM_LEN);
                memcpy(entry->newcomm, comm, TASK_COMM_LEN);
                __entry->oom_score_adj = task->signal->oom_score_adj;
        ),

        TP_printk("pid=%d oldcomm=%s newcomm=%s oom_score_adj=%hd",
                __entry->pid, __entry->oldcomm,
                __entry->newcomm, __entry->oom_score_adj)
);

#endif

/* This part must be outside protection */
#include <trace/define_trace.h>