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      1 #!/usr/sbin/dtrace -Zs
      2 /*
      3  * rb_funccalls.d - count Ruby function (method) calls using DTrace.
      4  *                  Written for the Ruby DTrace provider.
      5  *
      6  * $Id: rb_funccalls.d,v 1.1.1.1 2015/09/30 22:01:09 christos Exp $
      7  *
      8  * This traces activity from all Ruby programs on the system that are
      9  * running with Ruby provider support.
     10  *
     11  * USAGE: rb_funccalls.d 	# hit Ctrl-C to end
     12  *
     13  * FIELDS:
     14  *		FILE		Filename of the Ruby program
     15  *		METHOD		Method name
     16  *		COUNT		Number of calls during sample
     17  *
     18  * Filename and method names are printed if available.
     19  *
     20  * COPYRIGHT: Copyright (c) 2007 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-Sep-2007	Brendan Gregg	Created this.
     37  */
     38 
     39 #pragma D option quiet
     40 
     41 dtrace:::BEGIN
     42 {
     43         printf("Tracing... Hit Ctrl-C to end.\n");
     44 }
     45 
     46 ruby*:::function-entry
     47 {
     48         @funcs[basename(copyinstr(arg2)), copyinstr(arg0), copyinstr(arg1)] =
     49 	    count();
     50 }
     51 
     52 dtrace:::END
     53 {
     54         printf(" %-32.32s %-16s %-16s %8s\n", "FILE", "CLASS", "METHOD",
     55 	    "CALLS");
     56         printa(" %-32.32s %-16s %-16s %@8d\n", @funcs);
     57 }
     58