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<base href="https://llvm.org/bugs/" />
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW " title="NEW --- - Long .symver directives generate symbols with empty names" href="https://urldefense.proofpoint.com/v2/url?u=https-3A__llvm.org_bugs_show-5Fbug.cgi-3Fid-3D23914&d=AwMBaQ&c=8hUWFZcy2Z-Za5rBPlktOQ&r=pF93YEPyB-J_PERP4DUZOJDzFVX5ZQ57vQk33wu0vio&m=whnCjmjWBzZ8UXuQ4kf3h4gnQV63ED4CS6iPDxREj28&s=ww1wCq8lWHPS39cFm3tE4qkrkgntzewE4-tEBhK4kt8&e=">23914</a>
</td>
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<th>Summary</th>
<td>Long .symver directives generate symbols with empty names
</td>
</tr>
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<th>Product</th>
<td>libraries
</td>
</tr>
<tr>
<th>Version</th>
<td>trunk
</td>
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<th>Hardware</th>
<td>PC
</td>
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<th>OS</th>
<td>Linux
</td>
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<th>Status</th>
<td>NEW
</td>
</tr>
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<th>Severity</th>
<td>normal
</td>
</tr>
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<th>Priority</th>
<td>P
</td>
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<th>Component</th>
<td>MC
</td>
</tr>
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<th>Assignee</th>
<td>unassignedbugs@nondot.org
</td>
</tr>
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<th>Reporter</th>
<td>eugeni.stepanov@gmail.com
</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>$ cat 1.cc
int x = 0;
asm (".symver " "x" "," "aaaaaaaaaaaaaaaaaa" "@@@" "AAAAAAAAAAAAA");
$ clang++ -c 1.cc && objdump 1.o
1.o: file format elf64-x86-64
SYMBOL TABLE:
0000000000000000 l df *ABS* 0000000000000000 1.cc
0000000000000000 g O .bss 0000000000000004
$ /code/llvm/build/bin/clang++ -c 1.cc -fno-integrated-as && objdump -t 1.o
1.o: file format elf64-x86-64
SYMBOL TABLE:
0000000000000000 l df *ABS* 0000000000000000 1.cc
0000000000000000 l d .text 0000000000000000 .text
0000000000000000 l d .data 0000000000000000 .data
0000000000000000 l d .bss 0000000000000000 .bss
0000000000000000 l d .note.GNU-stack 0000000000000000 .note.GNU-stack
0000000000000000 l d .<a href="show_bug.cgi?id=23914#c0000000000000000">comment 0000000000000000</a> .<a href="show_bug.cgi?id=23914#c0000000000000000">comment
0000000000000000</a> g O .bss 0000000000000004
aaaaaaaaaaaaaaaaaa@@AAAAAAAAAAAAA
Remove any character from "aaa..aa" or "AA...AA" and we are back to the correct
behavior.</pre>
</div>
</p>
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