[Tarantool-patches] [PATCH] gdb: fix the extension to be loaded with Python 2

[Igor Munkin]

Oleg,

Thanks for your review!

On 06.07.20, Oleg Babin wrote:
> Hi! Thanks for your patch!
> 
> I just add that problem appeared on CentOS 7 that is still popular.

As I mentioned in the commit message the problem relates to gdb built
against Python 2 (viz. 2.7.5, since I can't claim anything about later
Python 2 versions). CentOS 7 is just particular distro providing this
gdb and I guess one can install a new one from SCL. However, as we
discussed with Sasha some time before it would be nice to support the
toolchain provided by default. Thereby we should support Python 2 even
after its EOL until CentOS 7 is gone.

> 
> But seems your patch solves a problem. LGTM.

Added your tag:
| Reviewed-by: Oleg Babin <olegrok at tarantool.org>

> 
> 
> On 04/07/2020 22:58, Igor Munkin wrote:
> > There was a mystic error when the extension was loaded against old gdb
> > versions build against Python 2:

Meh, this line looks bad, I've reworded it a bit:
| There was a mystic error when the extension was loaded by the old gdb
| versions built against Python 2:

Updated the upstream.

> > | (gdb) source luajit-gdb.py
> > | Traceback (most recent call last):
> > |   File "luajit-gdb.py", line 702, in <module>
> > |     load(None)
> > |   File "luajit-gdb.py", line 699, in load
> > |     'lj-gc': LJGC,
> > |   File "luajit-gdb.py", line 687, in init
> > |     command(name)
> > |   File "luajit-gdb.py", line 468, in __init__
> > |     gdb.write('{} command initialized\n'.format(name))
> > | ValueError: sequence.index(x): x not in sequence

-- 
Best regards,
IM