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The issue is the following. DWARF 2 used version 1 for .debug_frame. (Appendix G, p. 416 http://dwarfstd.org/doc/DWARF5.pdf) lib/MC now always sets version 1 for .eh_frame (and sets 1-4 versions for .debug_frame correctly): https://github.com/llvm-mirror/llvm/blob/master/lib/MC/MCDwarf.cpp#L1530 https://github.com/llvm-mirror/llvm/blob/master/lib/MC/MCDwarf.cpp#L1562 https://github.com/llvm-mirror/llvm/blob/master/lib/MC/MCDwarf.cpp#L1602 In version 1, return_address_register was defined as ubyte, while other versions switched to uleb128. (p 62, http://www.dwarfstd.org/doc/dwarf-2.0.0.pdf) Patch teaches llvm-dwarfdump about this difference. Differential revision: https://reviews.llvm.org/D54860 llvm-svn: 348242
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