Hi! I hope this is the right mailing list to ask this kind of question.
I’m working on a edu/research compiler that has yet to be equipped with DWARF info. Unlike GCC/Clang/… it doesn’t have spill slots that are “constant” within a procedure, i.e. may procedure code like this: _main: … je B A: movl %edi, -8(%rbp) # EDI spill slot: -8 … jmp C B: movl %eax, -8(%rbp) movl %edi, -16(%rbp) # EDI spill slot: -16 jmp C C: … Is this supported by the DWARF .cfi_offset directives at all, and if so, how? Generally speaking, what’s the “scope”/“validity period”/“life span” of such directive? As an example, if C were to raise an exception and we’d use stack unwinding, how could the unwinder find the old/callee-saved EDI value? Thanks Jonas _______________________________________________ Dwarf-Discuss mailing list Dwarf-Discuss@lists.dwarfstd.org http://lists.dwarfstd.org/listinfo.cgi/dwarf-discuss-dwarfstd.org
