Incorrect .debug_loc generated when using Location::BaseAddress with DWARF2

[bjorn3]

A base location entry is only existing since DWARF3. For DWARF2 it has to be expanded.

[bjorn3]

Same problem for .debug_ranges.

[bjorn3]

It turns out that my lldb and llvm-darfdump-7 doesn't understand BaseAddress at all for any version in 2..=4

$ lldb -v
lldb version 7.0.1

[philipc]

For DWARF2 it has to be expanded.

I'm not sure this is something gimli should do itself. It would require a relocation for every entry, right? We could return an error for this case, but I haven't decided yet whether enforcing this kind of strictness is good. I think other compilers have options for how strict they are (-gstrict-dwarf for gcc).

Same problem for .debug_ranges.

.debug_ranges doesn't exist in DWARF2. I guess we could return an error here too. However, if the ranges are discontiguous then I'm not sure you have any other way to do this.

It turns out that my lldb and llvm-darfdump-7 doesn't understand BaseAddress at all for any version in 2..=4

Is this only for .debug_loc? I would be surprised if it can't handle this for .debug_ranges.