1#!/usr/sbin/dtrace -Zs
2/*
3 * rb_syscalls.d - count Ruby calls and syscalls using DTrace.
4 *                 Written for the Ruby DTrace provider.
5 *
6 * $Id: rb_syscalls.d 20 2007-09-12 09:28:22Z brendan $
7 *
8 * USAGE: rb_syscalls.d { -p PID | -c cmd }	# hit Ctrl-C to end
9 *
10 * FIELDS:
11 *		FILE		Filename of the Ruby program
12 *		TYPE		Type of call (method/syscall)
13 *		NAME		Name of call
14 *		COUNT		Number of calls during sample
15 *
16 * Filename and method names are printed if available.
17 * The filename for syscalls may be printed as "ruby", if the program
18 * was invoked using the form "ruby filename" rather than running the
19 * program with an interpreter line.
20 *
21 * COPYRIGHT: Copyright (c) 2007 Brendan Gregg.
22 *
23 * CDDL HEADER START
24 *
25 *  The contents of this file are subject to the terms of the
26 *  Common Development and Distribution License, Version 1.0 only
27 *  (the "License").  You may not use this file except in compliance
28 *  with the License.
29 *
30 *  You can obtain a copy of the license at Docs/cddl1.txt
31 *  or http://www.opensolaris.org/os/licensing.
32 *  See the License for the specific language governing permissions
33 *  and limitations under the License.
34 *
35 * CDDL HEADER END
36 *
37 * 09-Sep-2007	Brendan Gregg	Created this.
38 */
39
40#pragma D option quiet
41
42self string filename;
43
44dtrace:::BEGIN
45{
46	printf("Tracing... Hit Ctrl-C to end.\n");
47}
48
49ruby$target:::function-entry
50{
51	this->name = strjoin(strjoin(copyinstr(arg0), "::"), copyinstr(arg1));
52	@calls[basename(copyinstr(arg2)), "method", this->name] = count();
53}
54
55syscall:::entry
56/pid == $target/
57{
58	@calls[basename(execname), "syscall", probefunc] = count();
59}
60
61dtrace:::END
62{
63	printf("\nCalls for PID %d,\n\n", $target);
64	printf(" %-32s %-10s %-22s %8s\n", "FILE", "TYPE", "NAME", "COUNT");
65	printa(" %-32s %-10s %-22s %@8d\n", @calls);
66}
67