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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - Improve LLD's error message for MSVC's LTCG object files"
href="https://bugs.llvm.org/show_bug.cgi?id=36995">36995</a>
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<th>Summary</th>
<td>Improve LLD's error message for MSVC's LTCG object files
</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>Windows NT
</td>
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<th>Status</th>
<td>NEW
</td>
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<th>Severity</th>
<td>enhancement
</td>
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<th>Priority</th>
<td>P
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<th>Component</th>
<td>COFF
</td>
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<th>Assignee</th>
<td>unassignedbugs@nondot.org
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</tr>
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<th>Reporter</th>
<td>rnk@google.com
</td>
</tr>
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<th>CC</th>
<td>llvm-bugs@lists.llvm.org, ruiu@google.com, zturner@google.com
</td>
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<p>
<div>
<pre>We correctly reject these files because they have the wrong magic. That was
<a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED FIXED - llvm-lib (and `lld-link /lib`) should error out on cl.exe LTCG obj files"
href="show_bug.cgi?id=31372">https://bugs.llvm.org/show_bug.cgi?id=31372</a>.
However, the error message could be improved:
[4/4] LIB obj/base/base_static.lib
FAILED: obj/base/base_static.lib
...
obj/base/base_static/base_switches.obj: not a COFF object, bitcode or resource
file
..\..\third_party\llvm-build\Release+Asserts\bin\lld-link.exe: error: lib
failed
ninja: build stopped: subcommand failed.
It would be nice to proactively detect that this is an LTCG file and tell the
user to rebuild without /GL.</pre>
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</p>
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