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<p class="MsoNormal"><a name="_MailEndCompose"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">The main DWARF info should provide the code address ranges for each function, as well as the starting source location. You could
then use the line table to map code ranges to individual source lines. That could give you a reasonable grasp of the source range for each function.<o:p></o:p></span></a></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">All addresses in the DWARF line table will be instruction addresses. And in fact, all instructions should be described in the line table (assuming all source
was compiled with debug info).<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">--paulr<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""> llvm-dev [mailto:llvm-dev-bounces@lists.llvm.org]
<b>On Behalf Of </b>Muhui Jiang via llvm-dev<br>
<b>Sent:</b> Monday, June 25, 2018 11:36 AM<br>
<b>To:</b> llvm-dev<br>
<b>Subject:</b> [llvm-dev] Instruction boundaries<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Hi<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">I was wondering whether there are any methods to know what part of the target binary is code. <o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">I have some ideas and hope to get your comments.<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">I would like to use LLVM's source level debugging information to extract the source lines belonging to every functions. Then use the dwarf mapping table to transfer the source level information to binary address. Are there any better methods?<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Besides, is the address listed inside dwarf line mapping table must be code rather than data?<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Regards<o:p></o:p></p>
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<p class="MsoNormal">Muhui<o:p></o:p></p>
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