<html>
<head>
<base href="https://bugs.webkit.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 - Implement bmalloc::isASanEnabled for Clang and generic Unix"
href="https://bugs.webkit.org/show_bug.cgi?id=148623">148623</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>Implement bmalloc::isASanEnabled for Clang and generic Unix
</td>
</tr>
<tr>
<th>Classification</th>
<td>Unclassified
</td>
</tr>
<tr>
<th>Product</th>
<td>WebKit
</td>
</tr>
<tr>
<th>Version</th>
<td>Other
</td>
</tr>
<tr>
<th>Hardware</th>
<td>All
</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>P2
</td>
</tr>
<tr>
<th>Component</th>
<td>Web Template Framework
</td>
</tr>
<tr>
<th>Assignee</th>
<td>webkit-unassigned@lists.webkit.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>mcatanzaro@igalia.com
</td>
</tr></table>
<p>
<div>
<pre>If you only care about Clang (not sure), bmalloc::isASanEnabled could be as simple as:
static bool isASanEnabled()
{
#if defined(__has_feature) && __has_feature(address_sanitizer)
return true;
#else
return false;
#endif
}
Unless there is some reason I don't understand for the runtime check.
GCC supports asan but not __has_feature. This runtime check works:
void *handle = dlopen(nullptr, RTLD_NOW);
if (!handle)
return false;
bool result = !!dlsym(handle, "__asan_poison_memory_region");
dlclose(handle);
return result;
I expect that would work fine on Darwin too.</pre>
</div>
</p>
<hr>
<span>You are receiving this mail because:</span>
<ul>
<li>You are the assignee for the bug.</li>
</ul>
</body>
</html>