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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - Make libc++abi link normally during testing on OS X"
href="https://llvm.org/bugs/show_bug.cgi?id=27405">27405</a>
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<th>Summary</th>
<td>Make libc++abi link normally during testing on OS X
</td>
</tr>
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<th>Product</th>
<td>libc++abi
</td>
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<th>Version</th>
<td>3.8
</td>
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<th>Hardware</th>
<td>Macintosh
</td>
</tr>
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<th>OS</th>
<td>MacOS X
</td>
</tr>
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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>All Bugs
</td>
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<th>Assignee</th>
<td>unassignedbugs@nondot.org
</td>
</tr>
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<th>Reporter</th>
<td>ben.craig@codeaurora.org
</td>
</tr>
<tr>
<th>CC</th>
<td>llvm-bugs@lists.llvm.org, mclow.lists@gmail.com
</td>
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<th>Classification</th>
<td>Unclassified
</td>
</tr></table>
<p>
<div>
<pre>This is related to PR22654.
<a class="bz_bug_link
bz_status_NEW "
title="NEW --- - Symbol list libc++abi2.exp should contain __cxa_throw_bad_new_array_length but doesn't."
href="show_bug.cgi?id=22654">https://llvm.org/bugs/show_bug.cgi?id=22654</a>
Normal usage of libc++abi on OS X does not require the user (or the compiler
driver) to link against libc++abi. All of the relevant symbols are re-exported
by libc++.
There is at least one symbol ( __cxa_throw_bad_new_array_length ) that is not
re-exported though. As a result, the tests end up linking directly against
libc++abi in order to test it. Ideally the "normal" and the "test" link use
cases would be the same.
The code that enforces this difference lives in libc++abi's
test/libcxxabi/test/config.py as of Apr 17, 2016. The relevant code is likely
to move into libc++'s test/libcxx/test/target_info.py when / if D16544 and
D16545 land.</pre>
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