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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - [PATCH] ralloc: atexit(3) handlers used in dlopened libraries"
href="https://bugs.freedesktop.org/show_bug.cgi?id=91869">91869</a>
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<th>Summary</th>
<td>[PATCH] ralloc: atexit(3) handlers used in dlopened libraries
</td>
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<th>Product</th>
<td>Mesa
</td>
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<th>Version</th>
<td>10.6
</td>
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<th>Hardware</th>
<td>Other
</td>
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<th>OS</th>
<td>FreeBSD
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<th>Status</th>
<td>NEW
</td>
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<th>Severity</th>
<td>normal
</td>
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<th>Priority</th>
<td>medium
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<th>Component</th>
<td>Other
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<th>Assignee</th>
<td>mesa-dev@lists.freedesktop.org
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<th>Reporter</th>
<td>dumbbell@FreeBSD.org
</td>
</tr>
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<th>QA Contact</th>
<td>mesa-dev@lists.freedesktop.org
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<p>
<div>
<pre>Created <span class=""><a href="attachment.cgi?id=118072" name="attach_118072" title="Patch to use __attribute__((destructor)) in ralloc.c">attachment 118072</a> <a href="attachment.cgi?id=118072&action=edit" title="Patch to use __attribute__((destructor)) in ralloc.c">[details]</a></span>
Patch to use __attribute__((destructor)) in ralloc.c
Hi!
On Linux, atexit(3) handlers are called when the program exits but also when a
library is unloaded. The latter behavior is a Glibc extension.
On systems where this extension is not supported, this causes an application to
crash when, for instance, a library using ralloc is dlclosed: at program exit,
the registered function is no longer in memory. For example, this happens with
OpenCL applications using an ICD loader on FreeBSD.
__attribute__((destructor)) fixes the problem because such handlers are called
when a library is unloaded and when the program exits.</pre>
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