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      1 #!/usr/sbin/dtrace -qs
      2 /*
      3  * kill.d - watch process signals as they are sent (eg, kill -9).
      4  *          Written in DTrace (Solaris 10 3/05).
      5  *
      6  * $Id: kill.d,v 1.1.1.1 2015/09/30 22:01:07 christos Exp $
      7  *
      8  * USAGE:       kill.d
      9  *
     10  * FIELDS:
     11  *              FROM     source PID
     12  *              COMMAND  source command name
     13  *              TO       destination PID
     14  *              SIG      destination signal ("9" for a kill -9)
     15  *              RESULT   result of signal (-1 is for failure)
     16  *
     17  * SEE ALSO: Chapter 25, Solaris Dynamic Tracing Guide, docs.sun.com,
     18  *           for a solution using proc:::signal-send.
     19  *
     20  * COPYRIGHT: Copyright (c) 2005 Brendan Gregg.
     21  *
     22  * CDDL HEADER START
     23  *
     24  *  The contents of this file are subject to the terms of the
     25  *  Common Development and Distribution License, Version 1.0 only
     26  *  (the "License").  You may not use this file except in compliance
     27  *  with the License.
     28  *
     29  *  You can obtain a copy of the license at Docs/cddl1.txt
     30  *  or http://www.opensolaris.org/os/licensing.
     31  *  See the License for the specific language governing permissions
     32  *  and limitations under the License.
     33  *
     34  * CDDL HEADER END
     35  *
     36  * 09-May-2004  Brendan Gregg   Created this.
     37  * 28-Jun-2005	   "      "	Last update.
     38  */
     39 
     40 dtrace:::BEGIN
     41 {
     42 	/* Print header */
     43 	printf("%5s %12s %5s %-6s %s\n",
     44 	    "FROM", "COMMAND", "SIG", "TO", "RESULT");
     45 }
     46 
     47 syscall::kill:entry
     48 {
     49 	/* Record target PID and signal */
     50 	self->target = arg0;
     51 	self->signal = arg1;
     52 }
     53 
     54 syscall::kill:return
     55 {
     56 	/* Print source, target, and result */
     57 	printf("%5d %12s %5d %-6d %d\n",
     58 	    pid, execname, self->signal, self->target, (int)arg0);
     59 
     60 	/* Cleanup memory */
     61 	self->target = 0;
     62 	self->signal = 0;
     63 }
     64