48 lines
2.1 KiB
D
Executable File
48 lines
2.1 KiB
D
Executable File
#!/usr/sbin/dtrace -qs
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/*
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* Copyright (C) 2014 University of Washington. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of Apple Inc. ("Apple") nor the names of
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* its contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/*
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* DTrace example: tracing function calls when the profiler is enabled.
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* To use this, first enable the JavaScript tracing profiler using the Web Inspector.
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*
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* These run for any process; restrict to a pid by changing the provider to JavaScriptCore$target
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* and passing the arguments '-p <pid>' to the script.
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*/
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JavaScriptCore*:::profile-will_execute
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{
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printf("[%d] -> %s (%s:%d:%d)\n",arg0, copyinstr(arg1), copyinstr(arg2), arg3, arg4);
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}
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JavaScriptCore*:::profile-did_execute
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{
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printf("[%d] <- %s (%s:%d:%d)\n",arg0, copyinstr(arg1), copyinstr(arg2), arg3, arg4);
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}
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