77 lines
2.0 KiB
D
Executable File
77 lines
2.0 KiB
D
Executable File
#!/usr/sbin/dtrace -Zs
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/*
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* js_calls.d - count JavaScript calls using DTrace.
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* Written for the JavaScript DTrace provider.
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*
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* $Id: js_calls.d,v 1.1.1.1 2015/09/30 22:01:07 christos Exp $
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*
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* This traces activity from all browsers on the system that are
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* running with JavaScript provider support.
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*
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* USAGE: js_calls.d # hit Ctrl-C to end
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*
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* FIELDS:
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* FILE Filename of the JavaScript program
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* TYPE Type of call (func/obj-new/...)
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* NAME Descriptive name of call
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* COUNT Number of calls during sample
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*
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* Filename and function names are printed if available.
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*
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* COPYRIGHT: Copyright (c) 2007 Brendan Gregg.
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*
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* CDDL HEADER START
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*
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* The contents of this file are subject to the terms of the
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* Common Development and Distribution License, Version 1.0 only
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* (the "License"). You may not use this file except in compliance
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* with the License.
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*
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* You can obtain a copy of the license at Docs/cddl1.txt
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* or http://www.opensolaris.org/os/licensing.
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* See the License for the specific language governing permissions
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* and limitations under the License.
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*
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* CDDL HEADER END
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*
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* 09-Sep-2007 Brendan Gregg Created this.
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*/
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#pragma D option quiet
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dtrace:::BEGIN
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{
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printf("Tracing... Hit Ctrl-C to end.\n");
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}
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javascript*:::function-entry
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{
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this->name = copyinstr(arg2);
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@calls[basename(copyinstr(arg0)), "func", this->name] = count();
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}
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javascript*:::execute-start
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{
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this->filename = basename(copyinstr(arg0));
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@calls[this->filename, "exec", "."] = count();
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}
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javascript*:::object-create-start
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{
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this->name = copyinstr(arg1);
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this->filename = basename(copyinstr(arg0));
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@calls[this->filename, "obj-new", this->name] = count();
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}
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javascript*:::object-finalize
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{
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this->name = copyinstr(arg1);
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@calls["<null>", "obj-free", this->name] = count();
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}
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dtrace:::END
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{
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printf(" %-24s %-10s %-30s %8s\n", "FILE", "TYPE", "NAME", "CALLS");
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printa(" %-24s %-10s %-30s %@8d\n", @calls);
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}
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