<html>
<head>
<base href="https://bugs.llvm.org/">
</head>
<body><table border="1" cellspacing="0" cellpadding="8">
<tr>
<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - Clang generates @PLT branches for powerpc, even when built without -fPIC"
href="https://bugs.llvm.org/show_bug.cgi?id=44105">44105</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>Clang generates @PLT branches for powerpc, even when built without -fPIC
</td>
</tr>
<tr>
<th>Product</th>
<td>clang
</td>
</tr>
<tr>
<th>Version</th>
<td>unspecified
</td>
</tr>
<tr>
<th>Hardware</th>
<td>Macintosh
</td>
</tr>
<tr>
<th>OS</th>
<td>All
</td>
</tr>
<tr>
<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Severity</th>
<td>enhancement
</td>
</tr>
<tr>
<th>Priority</th>
<td>P
</td>
</tr>
<tr>
<th>Component</th>
<td>LLVM Codegen
</td>
</tr>
<tr>
<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>chmeeedalf@gmail.com
</td>
</tr>
<tr>
<th>CC</th>
<td>llvm-bugs@lists.llvm.org, neeilans@live.com, richard-llvm@metafoo.co.uk
</td>
</tr></table>
<p>
<div>
<pre>A simple program:
int main(int);
int __start(void) {
return main(0);
}
When built with clang for powerpc: cc -m32 -ffreestanding -o freestanding.o
generates R_PPC_PLTREL24 relocations, when it should be generating only
R_PPC_REL32 relocations, and letting the linker do the fixups. These
R_PPC_PLTREL24 relocations appear to be forcing GNU ld to use BSS-PLT instead
of secure-PLT. Generating to asm, hand-removing the @PLT annotation, GNU ld
does not choose bss-plt.
Not sure if this is a clang bug or LLVM bug, as the intermediate LLVM listing
is difficult to decipher.</pre>
</div>
</p>
<hr>
<span>You are receiving this mail because:</span>
<ul>
<li>You are on the CC list for the bug.</li>
</ul>
</body>
</html>