linux-kernel - Re: No care given to GDB scripts..

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Message-ID: <cad25481-776b-4c67-a87e-916e311536e2@gmail.com>
Date:   Wed, 29 Nov 2023 20:49:43 -0800
From:   Florian Fainelli <f.fainelli@...il.com>
To:     Andrew Morton <akpm@...ux-foundation.org>
Cc:     "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        Jan Kiszka <jan.kiszka@...mens.com>,
        Kieran Bingham <kbingham@...nel.org>,
        Shanker Donthineni <sdonthineni@...dia.com>,
        Kuan-Ying Lee <Kuan-Ying.Lee@...iatek.com>,
        AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...labora.com>
Subject: Re: No care given to GDB scripts..



On 11/29/2023 5:02 PM, Andrew Morton wrote:
> On Wed, 29 Nov 2023 16:23:55 -0800 Florian Fainelli <f.fainelli@...il.com> wrote:
> 
>>> Is there any way of scripting the scripts so we can have some sort of
>>> automated testing down under tools/testing/selftests/?
>>
>> That might be a bit difficult to do as this would mean that we can self
>> debug and introspect using gdb the live kernel. Testing using QEMU is
>> definitively doable however. Of course, I just found another script that
>> broke (device.py)!
> 
> Oh.  That sounds quite the exercise in the context of tools/selftests.
> 
> One can of course just fire up gdb against the vmlinux elf file and
> play around, but I assume this won't permit a useful amount of the
> scripts to be exercised.
> 
> Suppose someone has set up qemu or whatever and has attached gdb to it.
> Could we provide that person with a script or a canned set of commands
> which exercise the gdb scripts to a useful extent?  So rather than
> attempting automated testing under the seltests umbrella, we provide
> less skilled individuals with the means to easily and quickly check for
> regressions.  I'd expect that such a toolset would be particularly
> helpful for regression testing the scripts across all the supported
> architectures?

Yes it would, let me play with what GDB and QEMU can do and see if this 
can be somewhat automated.

Thanks!
-- 
Florian