dwarf-expert

Technical expertise for analyzing DWARF debug files and understanding the DWARF standard (v3–v5). This skill provides technical knowledge and expertise about the DWARF standard and how to interact with DWARF files. Tasks include answering questions about the DWARF standard, providing examples of various DWARF features, parsing and/or creating DWARF files, and writing/modifying/analyzing code that interacts with DWARF data. When specific DWARF standard information is needed, use these authoritative sources: Official DWARF Standards (dwarfstd.org) : Use web search to find specific sections of the official DWARF specification at dwarfstd.org. Search queries like "DWARF5 DW_TAG_subprogram attributes site:dwarfstd.org" are effective. LLVM DWARF Implementation : The LLVM project's DWARF handling code at llvm/lib/DebugInfo/DWARF/ serves as a reliable reference implementation. Key files include: libdwarf : The reference C implementation at github.com/davea42/libdwarf-code provides detailed handling of DWARF data structures. Use llvm-dwarfdump verification options to validate DWARF data integrity: The --statistics output helps compare debug info quality across compiler versions and optimization levels.