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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - -mlong-calls generates non-PIC code on ARM"
href="https://bugs.llvm.org/show_bug.cgi?id=40624">40624</a>
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<th>Summary</th>
<td>-mlong-calls generates non-PIC code on ARM
</td>
</tr>
<tr>
<th>Product</th>
<td>new-bugs
</td>
</tr>
<tr>
<th>Version</th>
<td>unspecified
</td>
</tr>
<tr>
<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>
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<th>Severity</th>
<td>enhancement
</td>
</tr>
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<th>Priority</th>
<td>P
</td>
</tr>
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<th>Component</th>
<td>new bugs
</td>
</tr>
<tr>
<th>Assignee</th>
<td>unassignedbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>mh+llvm@glandium.org
</td>
</tr>
<tr>
<th>CC</th>
<td>htmldeveloper@gmail.com, llvm-bugs@lists.llvm.org
</td>
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<p>
<div>
<pre>With the following source:
```
extern __attribute__((visibility("hidden"))) int foo();
int bar() { return foo(); };
```
clang generates the following with -fPIC -mlong-calls -O3
--target=armv7a-linux-gnueabi:
```
bar:
ldr r0, .LCPI0_0
bx r0
.LCPI0_0:
.long foo
```
That is not PIC, as that .LCPI0_0 label is in .text.
GCC generates the following:
```
bar:
ldr r3, .L3
.LPIC0:
add r3, pc, r3
bx r3
.L3:
.word foo-(.LPIC0+8)
```
(All courtesy of godbolt)
<a href="https://godbolt.org/z/gKwbiO">https://godbolt.org/z/gKwbiO</a></pre>
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</p>
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