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<base href="https://bugs.llvm.org/">
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - debug info is missing information about a structure."
href="https://bugs.llvm.org/show_bug.cgi?id=38822">38822</a>
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<th>Summary</th>
<td>debug info is missing information about a structure.
</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>PC
</td>
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<th>OS</th>
<td>Linux
</td>
</tr>
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<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Severity</th>
<td>normal
</td>
</tr>
<tr>
<th>Priority</th>
<td>P
</td>
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<th>Component</th>
<td>DebugInfo
</td>
</tr>
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<th>Assignee</th>
<td>unassignedbugs@nondot.org
</td>
</tr>
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<th>Reporter</th>
<td>dimitry@google.com
</td>
</tr>
<tr>
<th>CC</th>
<td>llvm-bugs@lists.llvm.org
</td>
</tr></table>
<p>
<div>
<pre>Created <span class=""><a href="attachment.cgi?id=20834" name="attach_20834" title="lib.cc">attachment 20834</a> <a href="attachment.cgi?id=20834&action=edit" title="lib.cc">[details]</a></span>
lib.cc
This is a reproducer:
clang++ -fPIC -g -shared -o lib.so lib.cc
readelf -wai lib.so
....
<1><54>: Abbrev Number: 6 (DW_TAG_structure_type)
<55> DW_AT_name : (indirect string, offset: 0x11a): Foo
<59> DW_AT_declaration : 1
....
Where if the same file compiled using g++ it provides full information about
structure_type:
g++ -fPIC -g -shared -o lib.so lib.cc
readelf -wai lib.so
...
<1><2d>: Abbrev Number: 2 (DW_TAG_structure_type)
<2e> DW_AT_name : Foo
<32> DW_AT_byte_size : 4
<33> DW_AT_decl_file : 2
<34> DW_AT_decl_line : 1
<35> DW_AT_sibling : <0x46>
<2><39>: Abbrev Number: 3 (DW_TAG_member)
<3a> DW_AT_name : (indirect string, offset: 0x41): value
<3e> DW_AT_decl_file : 2
<3f> DW_AT_decl_line : 2
<40> DW_AT_type : <0x46>
<44> DW_AT_data_member_location: 0
...
It would be nice to have full debug info of a referenced structure even when
some fields of this structure are not used.</pre>
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</p>
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