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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - RuntimeDyld doesn't handle calls to external functions from MachO objects"
href="http://llvm.org/bugs/show_bug.cgi?id=15729">15729</a>
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<th>Summary</th>
<td>RuntimeDyld doesn't handle calls to external functions from MachO objects
</td>
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<th>Product</th>
<td>libraries
</td>
</tr>
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<th>Version</th>
<td>trunk
</td>
</tr>
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<th>Hardware</th>
<td>All
</td>
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<th>OS</th>
<td>All
</td>
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<th>Status</th>
<td>NEW
</td>
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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>Generic Execution Engine Support
</td>
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<th>Assignee</th>
<td>unassignedbugs@nondot.org
</td>
</tr>
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<th>Reporter</th>
<td>andrew.kaylor@intel.com
</td>
</tr>
<tr>
<th>CC</th>
<td>llvmbugs@cs.uiuc.edu
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<th>Classification</th>
<td>Unclassified
</td>
</tr></table>
<p>
<div>
<pre>Created <span class=""><a href="attachment.cgi?id=10343" name="attach_10343" title="sample code to reproduce the problem">attachment 10343</a> <a href="attachment.cgi?id=10343&action=edit" title="sample code to reproduce the problem">[details]</a></span>
sample code to reproduce the problem
RuntimeDyld fails with an assertion when trying to perform relocations on
generated code that contains a call to an external function. The generated
code contains a relocation (which varies by architecture) that is not handled
by the RuntimeDyldMachO class.
Eran Weiss provided the attached sample code to reproduce the problem.
To reproduce:
$ /usr/bin/g++ `llvm-config --cxxflags` -g -m32 -c mcjit_external_symbol.cpp
$ /usr/bin/g++ `llvm-config --ldflags` -g -m32 -o mcjit_external_symbol
mcjit_external_symbol.o `llvm-config --libs all`
$ ./mcjit_external_symbol
verifying...
LLVM ERROR: Program used external function '_external' which could not be
resolved!
This same test case passes if the older JIT implementation is used.</pre>
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