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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - [DWARF v5] Duplicate file table entry when a simple .s file is compiled"
href="https://bugs.llvm.org/show_bug.cgi?id=47715">47715</a>
</td>
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<th>Summary</th>
<td>[DWARF v5] Duplicate file table entry when a simple .s file is compiled
</td>
</tr>
<tr>
<th>Product</th>
<td>libraries
</td>
</tr>
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<th>Version</th>
<td>trunk
</td>
</tr>
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<th>Hardware</th>
<td>All
</td>
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<th>OS</th>
<td>All
</td>
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<th>Status</th>
<td>NEW
</td>
</tr>
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<th>Severity</th>
<td>normal
</td>
</tr>
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<th>Priority</th>
<td>P
</td>
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<th>Component</th>
<td>MC
</td>
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<th>Assignee</th>
<td>unassignedbugs@nondot.org
</td>
</tr>
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<th>Reporter</th>
<td>Wolfgang_Pieb@playstation.sony.com
</td>
</tr>
<tr>
<th>CC</th>
<td>llvm-bugs@lists.llvm.org
</td>
</tr></table>
<p>
<div>
<pre>The assembly source:
#======
foo:
ret
#======
when compiled with
clang -gdwarf-5 -c -x assembler-with-cpp test.s
produces a file table with 2 entries for the source file:
llvm-dwarfdump --debug-line test.o
<snip>
include_directories[ 0] = "/home/test"
file_names[ 0]:file_names[ 0]:
name: "test.s"
dir_index: 0
file_names[ 1]:
name: "test.s"
dir_index: 0
<snip>
This is somewhat similar to <a class="bz_bug_link
bz_status_NEW "
title="NEW - Duplicate file names in DWARF v5 line tables"
href="show_bug.cgi?id=44170">bug 44170</a>, but does not depend on using a different
pathname for the source. The first entry seems to be derived from the command
line. With
clang -gdwarf-5 -c -x assembler-with-cpp ./test.s
the file table comes out to be:
include_directories[ 0] = "/home/test"
include_directories[ 1] = "."
file_names[ 0]:
name: "./test.s"
dir_index: 0
file_names[ 1]:
name: "test.s"
dir_index: 1
In both cases, the line entries only refer to file 1.</pre>
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