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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 --- - 32-bit Linux fails to compile with clang due to std::atomic support"
href="http://llvm.org/bugs/show_bug.cgi?id=18311">18311</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>32-bit Linux fails to compile with clang due to std::atomic support
</td>
</tr>
<tr>
<th>Product</th>
<td>lldb
</td>
</tr>
<tr>
<th>Version</th>
<td>unspecified
</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>All Bugs
</td>
</tr>
<tr>
<th>Assignee</th>
<td>lldb-dev@cs.uiuc.edu
</td>
</tr>
<tr>
<th>Reporter</th>
<td>andrew.macp@gmail.com
</td>
</tr>
<tr>
<th>Classification</th>
<td>Unclassified
</td>
</tr></table>
<p>
<div>
<pre>Trying to compile the latest lldb from trunk on 32-bit Linux currently fails
with this error:
In file included from SBBlock.cpp:10:
In file included from
/home/andrew/src/llvm-trunk/tools/lldb/source/API/../../include/lldb/API/SBBlock.h:13:
In file included from
/home/andrew/src/llvm-trunk/tools/lldb/source/API/../../include/lldb/API/SBDefines.h:18:
In file included from
/home/andrew/src/llvm-trunk/tools/lldb/source/API/../../include/lldb/lldb-defines.h:13:
In file included from
/home/andrew/src/llvm-trunk/tools/lldb/source/API/../../include/lldb/lldb-types.h:14:
In file included from
/home/andrew/src/llvm-trunk/tools/lldb/source/API/../../include/lldb/lldb-forward.h:15:
In file included from
/home/andrew/src/llvm-trunk/tools/lldb/source/API/../../include/lldb/Utility/SharingPtr.h:22:
In file included from
/usr/lib/gcc/i686-linux-gnu/4.8/../../../../include/c++/4.8/atomic:41:
/usr/lib/gcc/i686-linux-gnu/4.8/../../../../include/c++/4.8/bits/atomic_base.h:420:16:
error:
cannot compile this atomic library call yet
{ return __atomic_add_fetch(&_M_i, __i, memory_order_seq_cst); }
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1 error generated.
The error appears to be because clang doesn't yet support C++11 std::atomic on
64-bit values (<a class="bz_bug_link
bz_status_NEW "
title="NEW --- - 64-bit __atomic_add_fetch(__ATOMIC_RELAXED) is not supported with -m32"
href="show_bug.cgi?id=15034">bug 15034</a>) and this is used at least in Address::m_offset.</pre>
</div>
</p>
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