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Symbol file types and their loading status can be determined by using the lm (List Loaded Modules) command, the !lmi extension, or WinDbg's Debug | Modules menu command.
Each of these displays information about loaded modules and their symbols.
The following abbreviations are used in the displays generated by these commands:
| Abbreviation | Meaning |
|---|---|
deferred |
The module has been loaded, but the debugger has not attempted to load the symbols. Symbols will be loaded when needed. See Deferred Symbol Loading for details. |
# |
There is a mismatch between the symbol file and the executable, either in their timestamps or in their checksums. |
T |
The timestamp is missing, not accessible, or equal to zero. |
C |
The checksum is missing, not accessible, or equal to zero. |
DIA |
Symbol files were loaded through Debug Interface Access (DIA). |
Export |
No actual symbol files were found, so symbol information was extracted from the binary file's export table. |
M |
There is a mismatch between the symbol file and the executable, either in their timestamps or in their checksums. However, symbol files have been loaded anyway due to the symbol option settings. |
PERF |
This binary contains performance-optimized code. Standard address arithmetic may not produce correct results. |
Stripped |
Debug information was stripped from the image file. |
PDB |
The symbols are in .pdb format. |
COFF |
The symbols are in common object file format (COFF) symbol format. |