<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 with -gdwarf-2 produces seemingly spurious warnings on assembly file"
href="https://bugs.llvm.org/show_bug.cgi?id=37657">37657</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>clang with -gdwarf-2 produces seemingly spurious warnings on assembly file
</td>
</tr>
<tr>
<th>Product</th>
<td>libraries
</td>
</tr>
<tr>
<th>Version</th>
<td>5.0
</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>DebugInfo
</td>
</tr>
<tr>
<th>Assignee</th>
<td>unassignedbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>waltl@google.com
</td>
</tr>
<tr>
<th>CC</th>
<td>llvm-bugs@lists.llvm.org
</td>
</tr></table>
<p>
<div>
<pre><span class="quote">> cat sec.S</span >
.section ".foo", "ax", @progbits
<span class="quote">> clang -c -gdwarf-2 sec.S</span >
sec.S:1:1: warning: DWARF2 only supports one section per compilation unit
.section ".foo", "ax", @progbits
^
<span class="quote">> clang --target=sparc-myriad-rtems-elf -mcpu=ma2450 -integrated-as -g -c sec.S</span >
/usr/local/google/home/waltl/sec.S:1:1: warning: DWARF2 only supports one
section per compilation unit
.section ".foo", "ax", @progbits
^
It's not clear why the assembler is complaining even though there is only one
section in the input file. According to <a href="https://reviews.llvm.org/D6379">https://reviews.llvm.org/D6379</a>, at
least some of these warnings are spurious.
Myriad uses dwarf-2, so it gets all these warnings, which we are working around
by passing -g0 for assembly files.</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>