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<base href="http://llvm.org/bugs/" />
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - DW_TAG_typedef and DW_TAG_structure_type missing"
href="http://llvm.org/bugs/show_bug.cgi?id=19005">19005</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>DW_TAG_typedef and DW_TAG_structure_type missing
</td>
</tr>
<tr>
<th>Product</th>
<td>clang
</td>
</tr>
<tr>
<th>Version</th>
<td>trunk
</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>-New Bugs
</td>
</tr>
<tr>
<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>tim.besard@elis.ugent.be
</td>
</tr>
<tr>
<th>CC</th>
<td>llvmbugs@cs.uiuc.edu
</td>
</tr>
<tr>
<th>Classification</th>
<td>Unclassified
</td>
</tr></table>
<p>
<div>
<pre>Created <span class=""><a href="attachment.cgi?id=12167" name="attach_12167" title="C test case.">attachment 12167</a> <a href="attachment.cgi?id=12167&action=edit" title="C test case.">[details]</a></span>
C test case.
Hi all,
On the attached test cases, both defining two structs value_t and example_t but
only using variables of type value_t* (accesses to example_t happen through
pointer casts) Clang doesn't seem to emit the necessary DW_TAGs for the
example_t type, while GCC does.
How to reproduce:
$(CC) -g test.c
- OR -
$(CXX) -g test.cpp
objdump -g a.out | grep example_t
Expected behaviour:
for C: DW_TAG_typedef tags for both value_t and example_t
for C++: DW_TAG_structure_type tags for these types
This matters for debugging purposes:
$ gdb ./a.out
(gdb) break 30
Breakpoint 1 at 0x4006a7: file test.cpp, line 30.
(gdb) run
Breakpoint 1, main () at test.cpp:30
30 return 0;
(gdb) print *value
$1 = {
kind = 1
}
(gdb) print *(example_t*)value
$2 = {
kind = 1,
foo = 42
}
When compiling with clang(++), this latest cast doesn't work:
(gdb) print *(example_t*)value
No symbol "example_t" in current context.</pre>
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