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#!/usr/sbin/dtrace -Zs
/*
* rb_syscalls.d - count Ruby calls and syscalls using DTrace.
* Written for the Ruby DTrace provider.
*
* $Id: rb_syscalls.d 20 2007-09-12 09:28:22Z brendan $
*
* USAGE: rb_syscalls.d { -p PID | -c cmd } # hit Ctrl-C to end
*
* FIELDS:
* FILE Filename of the Ruby program
* TYPE Type of call (method/syscall)
* NAME Name of call
* COUNT Number of calls during sample
*
* Filename and method names are printed if available.
* The filename for syscalls may be printed as "ruby", if the program
* was invoked using the form "ruby filename" rather than running the
* program with an interpreter line.
*
* COPYRIGHT: Copyright (c) 2007 Brendan Gregg.
*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (the "License"). You may not use this file except in compliance
* with the License.
*
* You can obtain a copy of the license at Docs/cddl1.txt
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* CDDL HEADER END
*
* 09-Sep-2007 Brendan Gregg Created this.
*/
#pragma D option quiet
self string filename;
dtrace:::BEGIN
{
printf("Tracing... Hit Ctrl-C to end.\n");
}
ruby$target:::function-entry
{
this->name = strjoin(strjoin(copyinstr(arg0), "::"), copyinstr(arg1));
@calls[basename(copyinstr(arg2)), "method", this->name] = count();
}
syscall:::entry
/pid == $target/
{
@calls[basename(execname), "syscall", probefunc] = count();
}
dtrace:::END
{
printf("\nCalls for PID %d,\n\n", $target);
printf(" %-32s %-10s %-22s %8s\n", "FILE", "TYPE", "NAME", "COUNT");
printa(" %-32s %-10s %-22s %@8d\n", @calls);
}
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