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<base href="https://bugzilla.icculus.org/" />
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - vm_x86.c inline assembly error on hosts using -fPIC"
href="https://bugzilla.icculus.org/show_bug.cgi?id=6429">6429</a>
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<th>Summary</th>
<td>vm_x86.c inline assembly error on hosts using -fPIC
</td>
</tr>
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<th>Product</th>
<td>ioquake3
</td>
</tr>
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<th>Version</th>
<td>GIT MASTER
</td>
</tr>
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<th>Hardware</th>
<td>PC
</td>
</tr>
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<th>OS</th>
<td>Linux
</td>
</tr>
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<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Severity</th>
<td>normal
</td>
</tr>
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<th>Priority</th>
<td>P3
</td>
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<th>Component</th>
<td>Misc
</td>
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<th>Assignee</th>
<td>zachary@ioquake.org
</td>
</tr>
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<th>Reporter</th>
<td>mark@noffle.net
</td>
</tr>
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<th>QA Contact</th>
<td>quake3-bugzilla@icculus.org
</td>
</tr></table>
<p>
<div>
<pre>On hardened distros, gcc will be configured to automatically compile code as
position independent code as part of their hardening toolset.
code/qcommon/vm_x86:1792
contains the entry:
__asm__ volatile(
"calll *%3\n"
: "+S" (programStack), "+D" (opStack), "+b" (opStackOfs)
: "g" (entryPoint)
: "cc", "memory", "%eax", "%ecx", "%edx"
);
This doesn't work on hosts compiling with -fPIC with 32bit builds since ebx is
used by pic.
-fno-pic would probably be the easiest option here, imo.</pre>
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</p>
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