[lldb-dev] Acceptance of dwarf2/3 suggested form of DW_AT_comp_dir

Matthew Gardiner mg11 at csr.com
Fri Aug 22 04:57:33 PDT 2014

Hi Greg,

I've modified the DWARF parsing accordingly. See:


if you're happy with this, I'll  submit on tuesday. It resulted in no 
regressions when I ran the python tests on linux.


Greg Clayton wrote:
> On Aug 21, 2014, at 4:23 AM, Matthew Gardiner <mg11 at csr.com> wrote:
>> Apologies for me getting noisy on this thread.
>> However, I don't think it's possible to work around toolchains that adopt the DWARF2/3 suggested form. The problem occurs if lldb wants to support debugging ELFs produced on different hosts - i.e. if the producer and consumers of the DWARF are either POSIX/Windows. We could then have a situation where a comp_dir string is something like:
>> c:/home/source
> Actually I think you will be ok because it will be:
> c:\home\source  for windows...
>> in this case, we cannot determine whether c is a drive-letter or a hostname.
>> (So, I think we'll be changing our toolchain accordingly :-)
>> However, if anyone has any opinions on this DWARF2/3 debate I'd be interested in hearing them.
> Feel free to modify the DWARF parser to strip off the leading hostname to get things fixed and working. If it is part of the older _or_ current spec, we should support it in LLDB.
> Greg
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