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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Hey Sara,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">I installed latest Xcode and switched to latest lldb. Its working for me.
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Thanks again!<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">-Prabhat<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""> Sara Burke
<br>
<b>Sent:</b> Thursday, November 01, 2012 1:40 PM<br>
<b>To:</b> Greg Clayton<br>
<b>Cc:</b> Sara Burke; lldb-dev@cs.uiuc.edu; Prabhat Verma<br>
<b>Subject:</b> Re: [lldb-dev] How to debug a core file with lldb?<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Great, thanks Greg. I must not have the most up-to-date lldb version, for I see the following when I do the same commands:<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">(lldb) version<o:p></o:p></p>
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<p class="MsoNormal">LLDB-112.2<o:p></o:p></p>
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<p class="MsoNormal">(lldb) apropos core<o:p></o:p></p>
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<p class="MsoNormal">No commands found pertaining to 'core'. Try 'help' to see a complete list of debugger commands.<o:p></o:p></p>
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<p class="MsoNormal">(lldb) help target create<o:p></o:p></p>
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<p class="MsoNormal"> Create a target using the argument as the main executable.<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Syntax: target create <cmd-options> <filename><o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Command Options Usage:<o:p></o:p></p>
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<p class="MsoNormal"> target create [-a <arch>] [-p <platform-name>] [-v <none>] [-b <none>] [-s <filename>] <filename><o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"> -a <arch> ( --arch <arch> )<o:p></o:p></p>
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<p class="MsoNormal"> Specify the architecture for the target.<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"> -b ( --build )<o:p></o:p></p>
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<p class="MsoNormal"> Specify the initial SDK build number.<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"> -p <platform-name> ( --platform <platform-name> )<o:p></o:p></p>
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<p class="MsoNormal"> Specify name of the platform to use for this target, creating the platform if necessary.<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"> -s <filename> ( --sysroot <filename> )<o:p></o:p></p>
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<p class="MsoNormal"> Specify the SDK root directory that contains a root of all remote system files.<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"> -v ( --version )<o:p></o:p></p>
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<p class="MsoNormal"> Specify the initial SDK version to use prior to connecting.<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">(lldb) target create --core /cores/core.1235<o:p></o:p></p>
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<p class="MsoNormal">lldb: unrecognized option `--core'<o:p></o:p></p>
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<p class="MsoNormal">error: unknown or ambiguous option<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Could you tell me what vernon of lldb the core support is in? Thanks!<o:p></o:p></p>
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<p class="MsoNormal"><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 Nov 1, 2012, at 1:35 PM, Greg Clayton wrote:<o:p></o:p></p>
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<p class="MsoNormal"><br>
<br>
<o:p></o:p></p>
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<p class="MsoNormal"><br>
On Nov 1, 2012, at 8:30 AM, Sara Burke <<a href="mailto:Sara.Burke@mathworks.com">Sara.Burke@mathworks.com</a>> wrote:<br>
<br>
<br>
<o:p></o:p></p>
<p class="MsoNormal">Hi lldb-dev,<o:p></o:p></p>
<blockquote style="margin-top:5.0pt;margin-bottom:5.0pt">
<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">I have a question regarding debugging a core file. With gdb, one can specify -c <core_file> to debug a core file. However, I can find no documentation to do this with lldb. Is there such a way? lldb seems to think the core file is an executable,
which isn't necessarily what I would like. Any suggestions?<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><br>
(lldb) apropos core<br>
The following commands may relate to 'core':<br>
target create -- Create a target using the argument as the main executable.<br>
(lldb) help target create<br>
Create a target using the argument as the main executable.<br>
<br>
Syntax: target create <cmd-options> <filename><br>
<br>
Command Options Usage:<br>
target create [-a <arch>] [-p <platform-name>] [-v <none>] [-b <none>] [-s <filename>] [-c <path>] <filename><br>
<br>
-a <arch> ( --arch <arch> )<br>
Specify the architecture for the target.<br>
<br>
-b ( --build )<br>
Specify the initial SDK build number.<br>
<br>
-c <path> ( --core <path> )<br>
Fullpath to a core file to use for this target.<br>
<br>
-p <platform-name> ( --platform <platform-name> )<br>
Specify name of the platform to use for this target, creating the platform if necessary.<br>
<br>
-s <filename> ( --sysroot <filename> )<br>
Specify the SDK root directory that contains a root of all remote system files.<br>
<br>
-v ( --version )<br>
Specify the initial SDK version to use prior to connecting.<br>
<br>
This command takes options and arguments, if your arguments look like option specifiers you must use '--' to terminate the options before starting to give the arguments.<br>
<br>
<br>
<br>
So there is documentation.<br>
<br>
(lldb) target create --core /cores/core.1235<br>
<br>
You can optionally give us the architecture and/or executable file if you know them:<br>
<br>
(lldb) target create --core /cores/core.1235 --arch x86_64 /path/to/executable<br>
<br>
After this commend, you can then do a:<br>
<br>
(lldb) thread list<br>
(lldb) thread backtrace all<br>
<br>
Core files only work for mach-o core files right now. ELF support hasn't been done yet, but there is good sample code to follow in the following directory:<br>
<br>
lldb/source/Plugins/Process/mach-core<o:p></o:p></p>
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<p class="MsoNormal" style="margin-bottom:13.5pt"><span style="font-size:13.5pt;font-family:"Helvetica","sans-serif";color:black"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="font-size:13.5pt;font-family:"Helvetica","sans-serif";color:black"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="font-size:13.5pt;font-family:"Helvetica","sans-serif";color:black"> <o:p></o:p></span></p>
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<p class="MsoNormal"><span class="apple-style-span"><span style="font-size:13.5pt;font-family:"Helvetica","sans-serif";color:black">-----------------------------------------------------------------</span></span><span class="apple-style-span"><span style="font-family:"Menlo","serif""><o:p></o:p></span></span></p>
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<p class="MsoNormal"><span class="apple-style-span"><span style="font-size:13.5pt;font-family:"Helvetica","sans-serif";color:black"> </span></span><span class="apple-style-span"><span style="font-size:8.5pt;font-family:"Futura","serif";color:black">Sara M.
Burke </span></span><span class="apple-style-span"><span style="font-family:"Helvetica","sans-serif""><o:p></o:p></span></span></p>
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<p class="MsoNormal"><span class="apple-style-span"><span style="font-size:7.5pt;font-family:"Helvetica","sans-serif";color:#858585"> Ext. 7476</span></span><span style="font-size:13.5pt;color:black"><o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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