/*
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* - Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
*
* - Neither the name of Oracle nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
* IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/*
*/
/*
* Description:
* dtrace -c option launches the command specified in the -c argument and
* starts tracing the process. Typically, you can run a D script and trace
* a Java application as follows:
* dscript.d -Zc "java HelloWorld"
*
* The -Z option is needed to permit probe descriptions that match zero
* probes because Hotspot probes definitions are located in libjvm.so which
* has not been yet loaded and thus can't be enabled until the application
* is started.
*
* Straightforward attempt to run D script may fail, e.g.:
* dscript.d -c "java HelloWorld"
* "probe description hotspotPID:::probename does not match any probes"
*
* This is because DTrace tries to enable probes before libjvm.so is loaded.
* The -Z option requires Solaris patch 118822-30 installed on your system.
*
* In case you don't have this Solaris patch use dtrace_helper.d script.
* This script waits until the Hotspot DTrace probes are loaded and then
* stops the Java process (passed as '-c' options). After the process is
* stopped, another D script (passed as first argument) is called to do real
* trace of Java process.
*
* Usage example:
* dtrace_helper.d -c "java ..." ../hotspot/class_loading_stat.d
*/
#pragma D option destructive
{
}
{
stop();
exit(0);
}