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<base href="http://llvm.org/bugs/" />
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<body><table border="1" cellspacing="0" cellpadding="8">
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - Crashing on pthread_join"
href="http://llvm.org/bugs/show_bug.cgi?id=20003">20003</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>Crashing on pthread_join
</td>
</tr>
<tr>
<th>Product</th>
<td>clang
</td>
</tr>
<tr>
<th>Version</th>
<td>3.0
</td>
</tr>
<tr>
<th>Hardware</th>
<td>PC
</td>
</tr>
<tr>
<th>OS</th>
<td>Linux
</td>
</tr>
<tr>
<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Severity</th>
<td>normal
</td>
</tr>
<tr>
<th>Priority</th>
<td>P
</td>
</tr>
<tr>
<th>Component</th>
<td>libclang
</td>
</tr>
<tr>
<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>allan@comp.ufu.br
</td>
</tr>
<tr>
<th>CC</th>
<td>llvmbugs@cs.uiuc.edu
</td>
</tr>
<tr>
<th>Classification</th>
<td>Unclassified
</td>
</tr></table>
<p>
<div>
<pre>Created <span class=""><a href="attachment.cgi?id=12638" name="attach_12638" title="source code">attachment 12638</a> <a href="attachment.cgi?id=12638&action=edit" title="source code">[details]</a></span>
source code
I think this is a bug. The code sounds sound and it works normally if I compile
with GCC.
The source code is attached. The file `in` is above. Ex:
$ gcc -ggdb -pthread thread.c
$ ./a.out < in
1 2 3
4 5 6
7 8
9 10
11 12
BEFORE SLEEP
AFTER SLEEP
AFTER JOIN
58 64
139 154
Count: 4
$ clang -ggdb -pthread thread.c
$ ./a.out < in
1 2 3
4 5 6
7 8
9 10
11 12
BEFORE SLEEP
AFTER SLEEP
Segmentation fault (core dumped)
$
I suppose this is an bug in clang.
OS: Ubuntu 12.04.4 fully updated (Linux hostname 3.2.0-64-generic #97-Ubuntu
SMP Wed Jun 4 22:04:21 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux)
clang: Ubuntu clang version 3.0-6ubuntu3 (tags/RELEASE_30/final) (based on LLVM
3.0) Target: x86_64-pc-linux-gnu Thread model: posix
Proc: Intel i5 4 "cores"
===== BEGIN FILE "IN" =====
2 3
1 2 3
4 5 6
3 2
7 8
9 10
11 12
====== END FILE ======</pre>
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