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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - [powerpc] -m32 should not define __powerpc64__"
href="https://bugs.llvm.org/show_bug.cgi?id=48427">48427</a>
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<th>Summary</th>
<td>[powerpc] -m32 should not define __powerpc64__
</td>
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<th>Product</th>
<td>clang
</td>
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<th>Version</th>
<td>trunk
</td>
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<th>Hardware</th>
<td>PC
</td>
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<th>OS</th>
<td>All
</td>
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<th>Status</th>
<td>NEW
</td>
</tr>
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<th>Severity</th>
<td>enhancement
</td>
</tr>
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<th>Priority</th>
<td>P
</td>
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<th>Component</th>
<td>Frontend
</td>
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<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
</td>
</tr>
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<th>Reporter</th>
<td>ndesaulniers@google.com
</td>
</tr>
<tr>
<th>CC</th>
<td>kit.barton@gmail.com, llvm-bugs@lists.llvm.org, neeilans@live.com, richard-llvm@metafoo.co.uk, srhines@google.com
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<th>Blocks</th>
<td>4068
</td>
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<p>
<div>
<pre>For building the Linux kernel with Clang, particularly the 32b compat VDSO for
powerpc64, we build one image file using `--target=powerpc64le-linux-gnu -m32`.
It looks like in this case Clang's preprocessor #defines __powerpc64__. This
causes compatibility issues for building this code with Clang (as GCC does not
define this for -m32).
See also:
<a href="https://lore.kernel.org/linuxppc-dev/87czzlu7n4.fsf@mpe.ellerman.id.au/T/">https://lore.kernel.org/linuxppc-dev/87czzlu7n4.fsf@mpe.ellerman.id.au/T/</a></pre>
</div>
</p>
<div id="referenced">
<hr style="border: 1px dashed #969696">
<b>Referenced Bugs:</b>
<ul>
<li>
[<a class="bz_bug_link
bz_status_CONFIRMED "
title="CONFIRMED - [Meta] Compiling the Linux kernel with clang"
href="https://bugs.llvm.org/show_bug.cgi?id=4068">Bug 4068</a>] [Meta] Compiling the Linux kernel with clang
</li>
</ul>
</div>
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