<html><body><div style="font-family: arial, helvetica, sans-serif; font-size: 12pt; color: #000000"><div>For the system call payload documentation, you might want to refer to the Linux system call<br></div><div>man pages.<br data-mce-bogus="1"></div><div><br data-mce-bogus="1"></div><div>For internal kernel tracepoints like sched_switch, there is no documentation of the meaning of<br data-mce-bogus="1"></div><div>each field at the moment. This state is the same as the upstream Linux kernel trace event. You'll</div><div>have to figure it out on your own. Documenting each field of the ~500-1000 Linux kernel tracepoints</div><div>is no small task.<br data-mce-bogus="1"></div><div><br data-mce-bogus="1"></div><div>Thanks,<br data-mce-bogus="1"></div><div><br data-mce-bogus="1"></div><div>Mathieu<br data-mce-bogus="1"></div><div><br></div><div><span id="zwchr" data-marker="__DIVIDER__">----- On Nov 19, 2019, at 9:25 PM, 杨海 <hai.yang@magic-shield.com> wrote:<br></span></div><div data-marker="__QUOTED_TEXT__"><blockquote style="border-left:2px solid #1010FF;margin-left:5px;padding-left:5px;color:#000;font-weight:normal;font-style:normal;text-decoration:none;font-family:Helvetica,Arial,sans-serif;font-size:12pt;"><div>To be more specific, I suppose we can refer to instrumentation\syscalls\3.10.0-rc7\x86-64-syscalls-3.10.0-rc7 for the payload format of syscall event. Is it exactly in the CTF syscall event?</div><br><div>Regards</div><div>Hai</div><div><div> </div><div style="font:'verdana' normal 14px;color:#000"><div style="font-size:12px;font-family:'arial narrow';padding:2px 0 2px 0">------------------ Original ------------------</div><div style="font-size:12px;background:#efefef;padding:8px"><div><b>From: </b> "杨海"<hai.yang@magic-shield.com>;</div><div><b>Date: </b> Mon, Nov 18, 2019 09:54 AM</div><div><b>To: </b> "lttng-dev"<lttng-dev@lists.lttng.org>; </div><div><b>Subject: </b> documentation about CTF event payload</div></div><div> </div><div><div>Hi</div><br><div>As LTTng generated CTF and babeltrace parse it, we have the output as attached. We saw events such as sched_switch, but the payload cannot be understood easily. Where we can find the document to explain the LTTng payload and parameters?</div><br><div>Regards</div><div>Hai</div></div></div></div><br>_______________________________________________<br>lttng-dev mailing list<br>lttng-dev@lists.lttng.org<br>https://lists.lttng.org/cgi-bin/mailman/listinfo/lttng-dev<br></blockquote></div><div><br></div><div data-marker="__SIG_POST__">-- <br></div><div>Mathieu Desnoyers<br>EfficiOS Inc.<br>http://www.efficios.com</div></div></body></html>