Re: [PATCH] Fix python compatibility with old versions of GDB

Simon Marchi
2017-06-13T11:23:29Z

On 2017-06-12 06:31, Orgad Shaneh wrote:
> On Mon, Jun 12, 2017 at 12:09 AM, Simon Marchi
> <simon.marchi@polymtl.ca> wrote:
>> Hi Orgad,
>>
>> I still don't understand what problem this is trying to fix. It looks
>> like
>> you want to make older versions of GDB work with newer versions of the
>> Python scripts in the data directory. I am not sure this is what we
>> want.
>> If you want multiple version of GDB in parallel on a system, they
>> should all
>> be compiled with a different --prefix, and they will all get their own
>> data-directory. We should only expect a certain version of the data
>> directory to be compatible with the version of GDB it was shipped
>> with. Or
>> am I missing some use case where this is not true?
>
> Hi,
>
> Practically the data-directory is mostly backwards-compatible, except
> this
> small part which I found (there might be others which I didn't find).
> With this
> patch, I'm able to run GDB 7.8 with the latest data-directory.
>
> Is there a reason not to accept it?

I'd like to know what other maintainers think about this. We may have
already faced this situation before and taken a decision which I'm not
aware of. Otherwise, we need to take it now.

Simon