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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Hi Ivan,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">I’m not properly setup to commit this at the moment. I was hoping either Tim or Lang would be willing to commit it.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">-Andy<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">From:</span></b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif""> Ivan Puzyrevskiy [mailto:sandello@yandex-team.ru]
<br>
<b>Sent:</b> Thursday, March 13, 2014 10:49 AM<br>
<b>To:</b> Kaylor, Andrew<br>
<b>Cc:</b> llvm-commits@cs.uiuc.edu; jim.kearney@oracle.com; Lang Hames (lhames@apple.com); Tim Northover<br>
<b>Subject:</b> Re: [PATCH] Make GDBJITRegistrar thread-safe<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Jim pointed out to me that patch was approved some time ago but it didn’t make its way to the trunk. See:<o:p></o:p></p>
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<p class="MsoNormal"><a href="http://comments.gmane.org/gmane.comp.compilers.llvm.cvs/161966">http://comments.gmane.org/gmane.comp.compilers.llvm.cvs/161966</a><br>
<a href="http://comments.gmane.org/gmane.comp.compilers.llvm.cvs/161965">http://comments.gmane.org/gmane.comp.compilers.llvm.cvs/161965</a><o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Andy, if this patch would be approved can I ask you to commit it? Neither me nor Jim has commit rights.<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Best,<o:p></o:p></p>
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<p class="MsoNormal">Ivan.<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">On 13 марта 2014 г., at 21:45, Kaylor, Andrew <<a href="mailto:andrew.kaylor@intel.com">andrew.kaylor@intel.com</a>> wrote:<o:p></o:p></p>
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<o:p></o:p></p>
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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">That looks good as an intermediate fix.</span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"> </span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">In the long term I think the GDB registration should probably be moved out of RuntimeDyldELF (maybe to an event listener), but these changes would probably
be nice to have even then.</span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"> </span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">-Andy</span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"> </span><o:p></o:p></p>
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<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">From:</span></b><span class="apple-converted-space"><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif""> </span></span><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif""><a href="mailto:llvm-commits-bounces@cs.uiuc.edu"><span style="color:purple">llvm-commits-bounces@cs.uiuc.edu</span></a><span class="apple-converted-space"> </span>[<a href="mailto:llvm-commits-bounces@cs.uiuc.edu"><span style="color:purple">mailto:llvm-commits-bounces@cs.uiuc.edu</span></a>]<span class="apple-converted-space"> </span><b>On
Behalf Of<span class="apple-converted-space"> </span></b>Ivan Puzyrevskiy<br>
<b>Sent:</b><span class="apple-converted-space"> </span>Thursday, March 13, 2014 4:45 AM<br>
<b>To:</b><span class="apple-converted-space"> </span><a href="mailto:llvm-commits@cs.uiuc.edu"><span style="color:purple">llvm-commits@cs.uiuc.edu</span></a><br>
<b>Cc:</b><span class="apple-converted-space"> </span><a href="mailto:jim.kearney@oracle.com"><span style="color:purple">jim.kearney@oracle.com</span></a><br>
<b>Subject:</b><span class="apple-converted-space"> </span>[PATCH] Make GDBJITRegistrar thread-safe</span><o:p></o:p></p>
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<p class="MsoNormal"> <o:p></o:p></p>
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<p class="MsoNormal"><span style="font-size:10.0pt">Hi there.<br>
<br>
While investigating a crash in GDBJITRegistrar I have stumbled upon<span class="apple-converted-space"> </span><a href="http://llvm.org/bugs/show_bug.cgi?id=15750"><span style="color:purple">http://llvm.org/bugs/show_bug.cgi?id=15750</span></a><span class="apple-converted-space"> </span>.
In my setting there were multiple instances of MCJIT operating in different threads.<br>
<br>
Patch from Bugzilla applies cleanly and solves the issue. I have attached a patch against r203780, yet full credit goes to Jim Kearney (<a href="mailto:jim.kearney@oracle.com"><span style="color:purple">jim.kearney@oracle.com</span></a>), original author of
the patch.<br>
<br>
Any chances to see this in the trunk or 3.5 release?<br>
<br>
Best,<span class="apple-converted-space"> </span><br>
Ivan</span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-size:10.0pt">_______________________________________________<br>
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