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From: Ruben Safir <ruben@mrbrklyn.com>
To: kernelnewbies@kernelnewbies.org
Subject: Re: Try/catch for modules?
Date: Fri, 18 Oct 2019 14:52:29 -0400	[thread overview]
Message-ID: <08bffca3-462b-b754-07ba-98eb3c14f0b2@mrbrklyn.com> (raw)
In-Reply-To: <CAN19L9GO-e=CpBffAkR2jXj6Nb7M1py36ZSZ25cyJna1dmprpg@mail.gmail.com>

On 10/18/19 1:05 PM, Martin Galvan wrote:
> El vie., 18 oct. 2019 a las 14:02, Ruben Safir (<ruben@mrbrklyn.com>) escribió:
>> I don't think you really understand what is going on here.  On the
>> kernel level you would never wrap up a process in another process in
>> order to catch a mistake, and then do error correction.  That method of
>> programming is not appropriate for kernel level code where you are
>> running everything on the hardware.
>>
>> You can test for a condition before you run the code, and use GOTO if
>> you want, but you are not doing a Java like Catch and Throw.
> 
> I'm not talking about running managed code in the kernel. I'm talking
> about whether there is a more general version of something like
> _ASM_EXTABLE, or maybe even doing something like what Windows does
> with its __try/__except machinery which uses stack unwinding
> information.
> 
> From the responses here it's clear that there's no such thing in the
> kernel, at least that you guys know about. Thanks.
> 
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https://code.woboq.org/linux/linux/arch/x86/include/asm/uaccess.h.html


it is for user space coding...



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  reply	other threads:[~2019-10-18 18:54 UTC|newest]

Thread overview: 24+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-10-17 13:37 Try/catch for modules? Martin Galvan
     [not found] ` <CAG=DERmX7AU8YkEAYnPLfPKCLD=1OugmD95R9wZ3CepXvqzd2Q@mail.gmail.com>
2019-10-17 13:42   ` Maria Neptune
2019-10-17 13:51     ` Ruben Safir
2019-10-17 22:12 ` Valdis Klētnieks
2019-10-18 15:43   ` Martin Galvan
2019-10-18 15:47     ` Anuz Pratap Singh Tomar
2019-10-18 15:48     ` Maria Neptune
2019-10-18 16:04     ` Bernd Petrovitsch
2019-10-18 16:11       ` Martin Galvan
2019-10-18 16:18         ` Bernd Petrovitsch
2019-10-18 17:02         ` Ruben Safir
2019-10-18 17:05           ` Martin Galvan
2019-10-18 18:52             ` Ruben Safir [this message]
2019-10-18 18:53             ` Ruben Safir
2019-10-18 19:08               ` Ruben Safir
2019-10-18 21:53         ` Valdis Klētnieks
2019-10-18 22:09           ` Martin Galvan
2019-10-18 22:28             ` Greg KH
2019-10-18 18:48     ` Ruben Safir
2019-10-18 21:24     ` Rik van Riel
2019-10-18 21:32       ` Ruben Safir
2019-10-18 21:37       ` Ruben Safir
2019-10-18 22:59     ` Valdis Klētnieks
2019-10-19  7:46 ` Bjørn Mork

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