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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - --cref on ld.lld writes the cref table to stdout even with -Map=filename"
href="https://bugs.llvm.org/show_bug.cgi?id=48282">48282</a>
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<th>Summary</th>
<td>--cref on ld.lld writes the cref table to stdout even with -Map=filename
</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
</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
</td>
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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>janm@transactionware.com
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<th>CC</th>
<td>llvm-bugs@lists.llvm.org, smithp352@googlemail.com
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<p>
<div>
<pre>Created <span class=""><a href="attachment.cgi?id=24204" name="attach_24204" title="Patch to use the file from -Map as a target for --cref output.">attachment 24204</a> <a href="attachment.cgi?id=24204&action=edit" title="Patch to use the file from -Map as a target for --cref output.">[details]</a></span>
Patch to use the file from -Map as a target for --cref output.
The --cref option on ld.lld only seems to write to stdout, ignoring the
-Map=filename option. This is a change from GNU ld.
To reproduce, compile and link any code with --cref, for example:
echo 'int main() { return 0; }' > test.c
cc -Wl,-Map=test.map -Wl,--cref test.c
The cross reference table is emitted on stdout instead of being written to
test.map.
A patch (against the lld imported into the FreeBSD 12.2 tree) that resolves the
issue for me is attached.</pre>
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