<table border="1" cellspacing="0" cellpadding="8">
    <tr>
        <th>Issue</th>
        <td>
            <a href=https://github.com/llvm/llvm-project/issues/125332>125332</a>
        </td>
    </tr>

    <tr>
        <th>Summary</th>
        <td>
            Merge lld/ELF commits into release/20.x
        </td>
    </tr>

    <tr>
      <th>Labels</th>
      <td>
            release:backport
      </td>
    </tr>

    <tr>
      <th>Assignees</th>
      <td>
      </td>
    </tr>

    <tr>
      <th>Reporter</th>
      <td>
          MaskRay
      </td>
    </tr>
</table>

<pre>
    /cherry-pick 45f538ecba1a51768002a5bc0c194b5af4cd9c27 d6fa74ab3d4cc77005836e72a2d6fe222bab4c59 994cea3f0a2d0caf4d66321ad5a06ab330144d89

There are a few commits that refactor the internal representations of isExported/isPreemptible. The current release/20.x contains a subset of refactoring commits and has a behavior difference/regression: -pie --export-dynamic without an input DSO does not export symbols. Cherry pick the rest to finish the refactoring and fix the regression.
</pre>
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