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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - lld-link /pdbaltpath:%_PDB% doesn't expand %_PDB%"
href="https://bugs.llvm.org/show_bug.cgi?id=38940">38940</a>
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<th>Summary</th>
<td>lld-link /pdbaltpath:%_PDB% doesn't expand %_PDB%
</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>All
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<th>Status</th>
<td>NEW
</td>
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<th>Severity</th>
<td>enhancement
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<th>Priority</th>
<td>P
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<th>Component</th>
<td>COFF
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<th>Assignee</th>
<td>unassignedbugs@nondot.org
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<th>Reporter</th>
<td>nicolasweber@gmx.de
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<th>CC</th>
<td>llvm-bugs@lists.llvm.org
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<p>
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<pre>/pdbaltpath:%_PDB% is mentioned in most places that mention /pdbaltpath:, but
lld-link does the wrong thing with it:
$ bin/llvm-readobj -coff-debug-directory foo.exe | grep PDBF
PDBFileName: %_PDB%
(see e.g. <a href="https://stackoverflow.com/questions/7596628/strip-the-path-to-the-pdb">https://stackoverflow.com/questions/7596628/strip-the-path-to-the-pdb</a>
"For newer link.exe versions,...", issue 31371, and the docs at
<a href="https://docs.microsoft.com/en-us/cpp/build/reference/pdbaltpath-use-alternate-pdb-path?view=vs-2017">https://docs.microsoft.com/en-us/cpp/build/reference/pdbaltpath-use-alternate-pdb-path?view=vs-2017</a>
. Probably don't need to support full env var feature for cross builds if
nothing else (but might want to warn if seeing %FOO% where FOO isn't
whitelisted), but _PDB and _EXT might be nice.)</pre>
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