[llvm-dev] DebugInfo work contribution and update.

Sourabh Singh Tomar via llvm-dev llvm-dev at lists.llvm.org
Wed Oct 9 11:37:41 PDT 2019

Thanks, David for updating us.

Regarding, mail address, can use anyone{@gmail or @amd}. but
sourav0311 at gmail.com works best for me for mailing lists related stuff.

Regarding, GDB side of DWARFv5 side of things, we've testing GDB-8.3 WRT
DWARFv5 clang and gcc binaries to get better idea of debuggability of clang
generated binaries with GDB.
Primary motivation being GDB better handling of gcc generated binaries,
compared to clang.

We've been also tracking Ali's patches in gdb mailing list. Jini can update
you better on, this one. Will ask her share update on this one.


On Wed, Oct 9, 2019 at 10:59 PM David Blaikie <dblaikie at gmail.com> wrote:

> +some other debugger people (Pavel - wasn't sure which email address you
> prefer, feel free to let me know (privately or publicly) for future
> reference)
> I work at Google & we're certainly interested in DWARFv5 compliance - I'm
> currently working on improving debug_loclist emission to share more address
> pool entries ( https://reviews.llvm.org/D68620 ) which includes some
> improvements to llvm-dwarfdump to go with that. (Pavel's working on further
> improvements https://reviews.llvm.org/D68271 )
> I haven't looked at/started on the loclist issue (PR43622) - so if you
> want to look at that, that's fine by me.
> Are you also interested in the debugger side of things? GDB's DWARFv5
> support is pretty incomplete & Ali's already looking at some of that, and I
> might get to the debug_loclist improvements necessary - but if someone else
> wants to do that before me, I won't complain.
> Not sure of any other major holes in LLVM's DWARFv5 support, but they
> might be out there, for sure.
> On Wed, Oct 9, 2019 at 9:37 AM Sourabh Singh Tomar via llvm-dev <
> llvm-dev at lists.llvm.org> wrote:
>> Hi llvm-dev, cfe-dev,
>> It's been a while since our team is investigating DebugInfo in LLVM,
>> we're looking forward to contribute and enhance in LLVM DebugInfo.
>> We,'ve been investigating mostly on DWARF-5 aspects -- couple of them to
>> mention--
>> 1. Language aspects
>> 2. Location mostly optimized out ones
>> 3. DebugInfo conformance to DWARF-5
>> To avoid getting conflicted with some body else's work and avoiding
>> redundancy. We would like to know the over-all state of current community
>> developments happening WRT DWARF-5.
>> As of now, we're working on --
>> PR 43263, 43622 -- reported today {Just Now}
>> we'll be up-streaming patches for these.
>> Please let us know your thoughts, and anything else that's relevant that
>> we need to aware of before picking up.
>> Thanks in anticipation!
>> Sourabh Singh Tomar
>> _______________________________________________
>> LLVM Developers mailing list
>> llvm-dev at lists.llvm.org
>> https://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-dev
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