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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - Temporary symbol is public"
href="http://llvm.org/bugs/show_bug.cgi?id=17967">17967</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>Temporary symbol is public
</td>
</tr>
<tr>
<th>Product</th>
<td>libraries
</td>
</tr>
<tr>
<th>Version</th>
<td>trunk
</td>
</tr>
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<th>Hardware</th>
<td>PC
</td>
</tr>
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<th>OS</th>
<td>Windows NT
</td>
</tr>
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<th>Status</th>
<td>NEW
</td>
</tr>
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<th>Severity</th>
<td>release blocker
</td>
</tr>
<tr>
<th>Priority</th>
<td>P
</td>
</tr>
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<th>Component</th>
<td>Backend: X86
</td>
</tr>
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<th>Assignee</th>
<td>unassignedbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>kai@redstar.de
</td>
</tr>
<tr>
<th>CC</th>
<td>llvmbugs@cs.uiuc.edu
</td>
</tr>
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<th>Classification</th>
<td>Unclassified
</td>
</tr></table>
<p>
<div>
<pre>Created <span class=""><a href="attachment.cgi?id=11560" name="attach_11560" title="Assembler file to reproduce problem">attachment 11560</a> <a href="attachment.cgi?id=11560&action=edit" title="Assembler file to reproduce problem">[details]</a></span>
Assembler file to reproduce problem
If Dwarf exception code is emitted into a COFF file on Windows 64, then the
temporary labels used for calculating the difference between function start and
landingpad are defined as public.
The labels are created in AsmPrinter.cpp as follows (method
EmitLabelDifference):
// Otherwise, emit with .set (aka assignment).
MCSymbol *SetLabel = GetTempSymbol("set", SetCounter++);
OutStreamer.EmitAssignment(SetLabel, Diff);
OutStreamer.EmitSymbolValue(SetLabel, Size);
The resulting .Lset0, .Lset1, ... labels are public despite being a temporary
symbol. This also happens with assembler files. Just assemble the attached file
and disassemble to check visibility of .LsetN labels.</pre>
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