<html>
<head>
<base href="https://bugs.llvm.org/">
</head>
<body><table border="1" cellspacing="0" cellpadding="8">
<tr>
<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - Figure out how to do library lookup on Big Sur"
href="https://bugs.llvm.org/show_bug.cgi?id=49713">49713</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>Figure out how to do library lookup on Big Sur
</td>
</tr>
<tr>
<th>Product</th>
<td>lld
</td>
</tr>
<tr>
<th>Version</th>
<td>unspecified
</td>
</tr>
<tr>
<th>Hardware</th>
<td>PC
</td>
</tr>
<tr>
<th>OS</th>
<td>All
</td>
</tr>
<tr>
<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Severity</th>
<td>enhancement
</td>
</tr>
<tr>
<th>Priority</th>
<td>P
</td>
</tr>
<tr>
<th>Component</th>
<td>MachO
</td>
</tr>
<tr>
<th>Assignee</th>
<td>unassignedbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>jezreel@gmail.com
</td>
</tr>
<tr>
<th>CC</th>
<td>gkm@fb.com, jezreel@gmail.com, llvm-bugs@lists.llvm.org, smeenai@fb.com
</td>
</tr></table>
<p>
<div>
<pre>As per
<a href="https://developer.apple.com/documentation/macos-release-notes/macos-big-sur-11_0_1-release-notes">https://developer.apple.com/documentation/macos-release-notes/macos-big-sur-11_0_1-release-notes</a>:
<span class="quote">> New in macOS Big Sur 11.0.1, the system ships with a built-in dynamic linker cache of all system-provided libraries. As part of this change, copies of dynamic libraries are no longer present on the filesystem. Code that attempts to check for dynamic library presence by looking for a file at a path or enumerating a directory will fail. Instead, check for library presence by attempting to dlopen() the path, which will correctly check for the library in the cache. (62986286)</span >
There's some prior work in
<a href="https://mjtsai.com/blog/2020/06/26/reverse-engineering-macos-11-0/">https://mjtsai.com/blog/2020/06/26/reverse-engineering-macos-11-0/</a> which may be
helpful (c.f. dyld_shared_cache_util)</pre>
</div>
</p>
<hr>
<span>You are receiving this mail because:</span>
<ul>
<li>You are on the CC list for the bug.</li>
</ul>
</body>
</html>