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</o:shapelayout></xml><![endif]--></head><body lang=EN-IE link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span style='font-family:"Book Antiqua",serif;color:#943634;mso-fareast-language:EN-US'>Perfect, thanks<o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Book Antiqua",serif;color:#943634;mso-fareast-language:EN-US'><o:p> </o:p></span></p><p class=MsoNormal><b><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri",sans-serif'>From:</span></b><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri",sans-serif'> Yaron Keren [mailto:yaron.keren@gmail.com] <br><b>Sent:</b> 04 June 2016 19:06<br><b>To:</b> Martin J. O'Riordan <Martin.ORiordan@movidius.com><br><b>Cc:</b> LLVM Developers <llvm-dev@lists.llvm.org><br><b>Subject:</b> Re: [llvm-dev] Adding source location information to crash dumps<o:p></o:p></span></p><p class=MsoNormal><o:p> </o:p></p><div><div><p class=MsoNormal>We use creduce to reduce large crash code to a small example, <a href="https://embed.cs.utah.edu/creduce/">https://embed.cs.utah.edu/creduce/</a><o:p></o:p></p></div><div><p class=MsoNormal>Then you can run clang under a debugger compiling the small example and actually understand the crash. <o:p></o:p></p></div></div><div><p class=MsoNormal><o:p> </o:p></p><div><div><p class=MsoNormal>2016-06-04 13:27 GMT+03:00 Martin J. O'Riordan via llvm-dev <<a href="mailto:llvm-dev@lists.llvm.org" target="_blank">llvm-dev@lists.llvm.org</a>>:<o:p></o:p></p></div><blockquote style='border:none;border-left:solid #CCCCCC 1.0pt;padding:0cm 0cm 0cm 6.0pt;margin-left:4.8pt;margin-right:0cm'><div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='font-family:"Book Antiqua",serif'>Awful though it may seem, we sometimes do get crashes in the compiler, usually because of some unhandled scenario we never thought of. Unfortunately this typically happens when compiling very large pieces of code, so narrowing down the context of the crash can be difficult.</span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='font-family:"Book Antiqua",serif'> </span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='font-family:"Book Antiqua",serif'>When CLang/LLVM crashes it very helpfully creates a temporary pre-processed file along with a shell script to run this file so the issue can be reproduced. And when run there is (usually) a call-stack dump, particularly when the Debug build is run.</span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='font-family:"Book Antiqua",serif'> </span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='font-family:"Book Antiqua",serif'>But I would also like to have a clue about what file and line in the test-case corresponds to the context in which the crash occurs. Is there any easy way of adding the ability to write the ‘DebugLoc’ information corresponding to the context or the crash, or is this information not available to the crash-handler? </span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='font-family:"Book Antiqua",serif'> </span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='font-family:"Book Antiqua",serif'>Thanks,</span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='font-family:"Book Antiqua",serif'> </span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='font-family:"Book Antiqua",serif'> MartinO</span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='font-family:"Book Antiqua",serif'> </span><o:p></o:p></p></div></div><p class=MsoNormal style='margin-bottom:12.0pt'><br>_______________________________________________<br>LLVM Developers mailing list<br><a href="mailto:llvm-dev@lists.llvm.org">llvm-dev@lists.llvm.org</a><br><a href="http://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-dev" target="_blank">http://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-dev</a><o:p></o:p></p></blockquote></div><p class=MsoNormal><o:p> </o:p></p></div></div></body></html>