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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - clang doesn't emit debugging information when compiling assembly files directly to an executable"
href="https://bugs.llvm.org/show_bug.cgi?id=33663">33663</a>
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<th>Summary</th>
<td>clang doesn't emit debugging information when compiling assembly files directly to an executable
</td>
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<th>Product</th>
<td>new-bugs
</td>
</tr>
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<th>Version</th>
<td>4.0
</td>
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<th>Hardware</th>
<td>Macintosh
</td>
</tr>
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<th>OS</th>
<td>MacOS X
</td>
</tr>
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<th>Status</th>
<td>NEW
</td>
</tr>
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<th>Severity</th>
<td>enhancement
</td>
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<th>Priority</th>
<td>P
</td>
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<th>Component</th>
<td>new bugs
</td>
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<th>Assignee</th>
<td>unassignedbugs@nondot.org
</td>
</tr>
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<th>Reporter</th>
<td>mike.benfield@gmail.com
</td>
</tr>
<tr>
<th>CC</th>
<td>llvm-bugs@lists.llvm.org
</td>
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<p>
<div>
<pre>If I compile an assembly file (with -g) to an object file, then link the object
file, debugging works correctly. But if I compile an assembly file (with -g)
directly to an executable, it apparently doesn't have debugging information.
Since this is different behavior than when clang compiles C language files, I
believe this is a bug. Example:
$ cat trash.s
.intel_syntax noprefix
.text
.global _main
_main:
mov rax, 5
ret
$ clang -g trash.s
$ lldb a.out
(lldb) target create "a.out"
Current executable set to 'a.out' (x86_64).
(lldb) breakpoint set -f trash.s -l 6
Breakpoint 1: no locations (pending).
WARNING: Unable to resolve breakpoint to any actual locations.</pre>
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