#!/usr/bin/stap
/*
* opensnoop-nd.stp Trace file open()s. Basic version of opensnoop.
* For Linux, uses SystemTap (non-debuginfo).
*
* Copyright (C) 2015 Brendan Gregg.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* 21-Mar-2014 Brendan Gregg Created this.
*/
probe begin
{
printf("%6s %6s %16s %4s %s\n", "UID", "PID", "COMM", "FD", "PATH");
}
probe nd_syscall.open.return
{
/* trace on return to ensure the pathname has faulted in */
printf("%6d %6d %16s %4d %s\n", uid(), pid(), execname(),
returnval(), user_string2(@entry(pointer_arg(1)), "-"));
}
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