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#!/usr/bin/env stap

global start_ts

probe begin {
    start_ts = gettimeofday_us()
    printf("%12s  %5s  %5s  %-16s  ACTION\n",
            "TIMESTAMP", "PID", "TID", "EXECNAME")
}

function report(action:string) {
    printf("%12d  %5d  %5d  %-16s  %s\n", gettimeofday_us() - start_ts,
            pid(), tid(), execname(), action)
}

function id:string(task:long) {
    return sprintf("p:%d t:%d n:%s", task_pid(task), task_tid(task),
            task_execname(task))
}

probe process.create {
    report(sprintf("create %s", id(task)))
}

probe process.start {
    report("start")
}

probe process.exec {
    report(sprintf("exec %s", filename))
}

probe process.exec_complete {
    if (success)
        report("exec success")
    else
        report(sprintf("exec failed %d (%s)", errno, errno_str(errno)))
}

probe process.exit {
    report(sprintf("exit %d", code))
}

probe process.release {
    report(sprintf("remove %s", id(task)))
}

probe signal.send {
    report(sprintf("sigsend %d (%s) to %s%s", sig, sig_name, id(task),
                shared? " [SHARED]" : ""))
}

probe signal.handle {
    report(sprintf("sighandle %d (%s)", sig, sig_name))
}