Hi Sasha, Sorry for the late reply.
On Thu, 2019-09-12 at 15:22 +0000, Sasha Da Rocha Pinheiro wrote: > For my knowledge about it, this information is not encoded in the > dwarf_line state machine instructions. Right? Would you know how to > get it? > > I know that the state machine will shift line number and address > number to encode instructions such as: > DW_LNS_fixed_advance_pc > SPECIAL(2, 0) > DW_LNS_fixed_advance_pc > SPECIAL(2, 0) > DW_LNS_fixed_advance_pc > SPECIAL(1, 0) > DW_LNS_fixed_advance_pc > SPECIAL(1, 0) > DW_LNS_fixed_advance_pc > DW_LNE_end_sequence > > And that does not give us range end. Am I correct? Can we make any > assumptions for it? The line number table gives a mapping from addresses to source line. You could get the reverse information out of it, but since the table is ordered by addresses it isn't very convenient to construct a source line to addresses mapping. Also there is no guarantee that any source line will map to a continuous range of addresses, so there might not be one starting address and one ending address. I don't know what you really need this for, but you could get some information about function or some syntactical scopes from the DIE tree. Which you can get with dwarf_ranges (). Which might or might not be what you are looking for? Cheers, Mark
