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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 - [DebugInfo] Missing debug-info for `enums` declared inside a C function"
href="https://bugs.llvm.org/show_bug.cgi?id=49153">49153</a>
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<th>Summary</th>
<td>[DebugInfo] Missing debug-info for `enums` declared inside a C function
</td>
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<th>Product</th>
<td>libraries
</td>
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<th>Version</th>
<td>trunk
</td>
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<th>Hardware</th>
<td>PC
</td>
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<th>OS</th>
<td>Linux
</td>
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<th>Status</th>
<td>NEW
</td>
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<th>Severity</th>
<td>enhancement
</td>
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<th>Priority</th>
<td>P
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<th>Component</th>
<td>DebugInfo
</td>
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<th>Assignee</th>
<td>unassignedbugs@nondot.org
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<th>Reporter</th>
<td>sourav0311@gmail.com
</td>
</tr>
<tr>
<th>CC</th>
<td>aloksharma.knit@gmail.com, aprantl@apple.com, dblaikie@gmail.com, jdevlieghere@apple.com, jini.susan.george@gmail.com, keith.walker@arm.com, llvm-bugs@lists.llvm.org, paul.robinson@am.sony.com, paul_robinson@playstation.sony.com
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<pre>$cat enum.c
int main() {
enum {
Hello = 1,
};
printf("%d\n", Hello);
}
---------------------------------
DWARF generated by CLANG(trunk):
0x0000000b: DW_TAG_compile_unit
...
0x0000002a: DW_TAG_subprogram
DW_AT_name ("main")
...
0x00000043: DW_TAG_base_type
DW_AT_name ("int")
...
0x0000004a: NULL
--------------------------------------
DWARF generated by GCC(trunk):
x0000002e: DW_TAG_subprogram
DW_AT_name ("main")
...
0x00000050: DW_TAG_enumeration_type
DW_AT_encoding (DW_ATE_unsigned)
DW_AT_byte_size (0x04)
DW_AT_type (0x0000007f "unsigned int")
...
0x0000005e: DW_TAG_enumerator
DW_AT_name ("Hello")
DW_AT_const_value (0x01)
--------------------------------------------
I think this is mostly due to design of enums in debug-info. Enums are
represented as part of CompileUnit as:
!0 = distinct !DICompileUnit(..... enums: !2, ....)
While this works well for cases when enum is at Global/CU scope, but leaves no
room for addressing the case depicted here, i.e Enum declared inside a
function.</pre>
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