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<body><span class="vcard"><a class="email" href="mailto:i@maskray.me" title="Fangrui Song <i@maskray.me>"> <span class="fn">Fangrui Song</span></a>
</span> changed
<a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED FIXED - implement -fpatchable-function-entry"
href="https://bugs.llvm.org/show_bug.cgi?id=43912">bug 43912</a>
<br>
<table border="1" cellspacing="0" cellpadding="8">
<tr>
<th>What</th>
<th>Removed</th>
<th>Added</th>
</tr>
<tr>
<td style="text-align:right;">CC</td>
<td>
</td>
<td>i@maskray.me
</td>
</tr>
<tr>
<td style="text-align:right;">Resolution</td>
<td>---
</td>
<td>FIXED
</td>
</tr>
<tr>
<td style="text-align:right;">Status</td>
<td>NEW
</td>
<td>RESOLVED
</td>
</tr></table>
<p>
<div>
<b><a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED FIXED - implement -fpatchable-function-entry"
href="https://bugs.llvm.org/show_bug.cgi?id=43912#c4">Comment # 4</a>
on <a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED FIXED - implement -fpatchable-function-entry"
href="https://bugs.llvm.org/show_bug.cgi?id=43912">bug 43912</a>
from <span class="vcard"><a class="email" href="mailto:i@maskray.me" title="Fangrui Song <i@maskray.me>"> <span class="fn">Fangrui Song</span></a>
</span></b>
<pre><a href="https://reviews.llvm.org/D72222">https://reviews.llvm.org/D72222</a>
<a href="https://reviews.llvm.org/D72221">https://reviews.llvm.org/D72221</a>
<a href="https://reviews.llvm.org/D72220">https://reviews.llvm.org/D72220</a>
<a href="https://reviews.llvm.org/D72215">https://reviews.llvm.org/D72215</a>
have all been committed. -fpatchable-function-entry=N[,M], M!=0 is not
supported.
Its interaction with Branch Target Identification is still unclear. We need a
consensus with GCC/Linux folks
<a href="https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92424">https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92424</a>
There are several issues with GCC's implementation
<a href="https://gcc.gnu.org/ml/gcc/2020-01/msg00067.html">https://gcc.gnu.org/ml/gcc/2020-01/msg00067.html</a> It also requires GNU as and ld
features.
Mark this as fixed for now. We can create a new specific bug when these issues
are sorted out.</pre>
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