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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - LLD links incorrect ELF executable if version script contains "local: *;""
href="https://bugs.llvm.org/show_bug.cgi?id=39104">39104</a>
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<th>Summary</th>
<td>LLD links incorrect ELF executable if version script contains "local: *;"
</td>
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<th>Product</th>
<td>lld
</td>
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<th>Version</th>
<td>unspecified
</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>
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<th>Severity</th>
<td>enhancement
</td>
</tr>
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<th>Priority</th>
<td>P
</td>
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<th>Component</th>
<td>ELF
</td>
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<th>Assignee</th>
<td>unassignedbugs@nondot.org
</td>
</tr>
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<th>Reporter</th>
<td>orivej@gmx.fr
</td>
</tr>
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<th>CC</th>
<td>llvm-bugs@lists.llvm.org, rafael@espindo.la, ruiu@google.com
</td>
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<p>
<div>
<pre>Given these files:
x.c:
int main() { return 0; }
x.map:
{ local: *; };
an executable linked with:
clang x.c -o x -fuse-ld=lld -Wl,--version-script=x.map
does not run with an error:
./x: symbol lookup error: ./x: undefined symbol:
and "LD_DEBUG=symbols ./x" reveals that ld is looking for a symbol with
zero-length name.
(Such linker scripts are useful when an executable needs to dlopen a shared
object without exposing symbols that are supposed to be details of
implementation.)
This was introduced in <a href="https://reviews.llvm.org/D46103">https://reviews.llvm.org/D46103</a>. LLD before r330966 and
other linkers produce an executable that runs with code 0, therefore this is a
regression in LLD 7.</pre>
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