On Fri, Mar 04 2016, Cary Coutant wrote: > It's up to the ABI to define how smaller values are placed within a register.
Right, that seems to be the common understanding. Maybe the confusion arose because the standard does not explicitly make this statement. Or did I miss it? Also, I wonder whether everybody is on the same page as to what this really means. Consider the following questions: * What if the object is too large for the given register? For instance, can the ABI map the object to a register pair? * Is DW_OP_regx(n) followed by DW_OP_piece(size of object type) always equivalent to omitting the DW_OP_piece operation? Answers are welcome, since I'm currently trying to fix various issues with GDB's handling of composite location descriptions. More questions about DWARF pieces came up as well: https://sourceware.org/ml/gdb/2016-01/msg00013.html -- Andreas Arnez _______________________________________________ Dwarf-Discuss mailing list Dwarf-Discuss@lists.dwarfstd.org http://lists.dwarfstd.org/listinfo.cgi/dwarf-discuss-dwarfstd.org
