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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - MSAN complains about uninitialized value in __cxxabiv1::__getExceptionClass"
href="https://bugs.llvm.org/show_bug.cgi?id=44586">44586</a>
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<th>Summary</th>
<td>MSAN complains about uninitialized value in __cxxabiv1::__getExceptionClass
</td>
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<th>Product</th>
<td>libc++abi
</td>
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<th>Version</th>
<td>9.0
</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>normal
</td>
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<th>Priority</th>
<td>P
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<th>Component</th>
<td>All Bugs
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<th>Assignee</th>
<td>unassignedbugs@nondot.org
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<th>Reporter</th>
<td>kyle.edwards@kitware.com
</td>
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<th>CC</th>
<td>llvm-bugs@lists.llvm.org, mclow.lists@gmail.com
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<pre>Created <span class=""><a href="attachment.cgi?id=23027" name="attach_23027" title="Log produced by MSAN">attachment 23027</a> <a href="attachment.cgi?id=23027&action=edit" title="Log produced by MSAN">[details]</a></span>
Log produced by MSAN
I'm attempting to memory-sanitize my program, and have run into an
uninitialized memory error that's being triggered when an exception is thrown
(in __cxxabiv1::__getExceptionClass), but only when libc++abi is compiled with
-DCMAKE_BUILD_TYPE=Release. When libc++abi is compiled with
-DCMAKE_BUILD_TYPE=Debug, this error does not manifest. I've tried using
__msan_print_shadow() inside __getExceptionClass() and it doesn't report
anything odd.
I've attached an MSAN log with stack traces, but I have not been able to come
up with a minimal working example yet (I will post it here if I do.)</pre>
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