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From: jerome lacoste <jerome.lacoste@gmail.com>
To: "Guillermo López Alejos" <glalejos@gmail.com>
Cc: Linux Kernel mailing list <linux-kernel@vger.kernel.org>
Subject: Re: Environment variables inside the kernel?
Date: Thu, 18 Aug 2005 18:03:06 +0200	[thread overview]
Message-ID: <5a2cf1f6050818090390ec6a4@mail.gmail.com> (raw)
In-Reply-To: <4fec73ca050818084467f04c31@mail.gmail.com>

[I doubt this is the right list to ask this question.]

On 8/18/05, Guillermo López Alejos <glalejos@gmail.com> wrote:
> Hi,
> 
> I have a piece of code which uses environment variables. I have been
> told that it is not going to work in kernel space because the concept
> of environment is not applicable inside the kernel.
>
> I belive that, but I need to demonstrate it. 

Is it me or does that sound like a school assignment? :)

> I do not know how to
> proof this, perhaps referring to a solid reference about Linux design
> that points to the idea that it has no sense to use environment
> variables in kernel space.
> 
> Do anyone knows about the existence of such document?

No.

But you should be able to answer your question by wondering:
- where environment variables come from? see "man sh" or "man bash"
(in particular ENVIRONMENT section)
- how processes are handled. "man init" (in particular BOOTING section)
- where your kernel space is...

Cheers,

Jerome

  parent reply	other threads:[~2005-08-18 16:03 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2005-08-18 15:44 Environment variables inside the kernel? Guillermo López Alejos
2005-08-18 16:02 ` linux-os (Dick Johnson)
2005-08-18 16:03 ` jerome lacoste [this message]
2005-08-18 16:12 ` Ingo Oeser
2005-08-18 17:27   ` Christoph Lameter
2005-08-18 16:37 ` Douglas McNaught
2005-08-18 18:23   ` Linh Dang
2005-08-18 18:48     ` Guillermo López Alejos
2005-08-18 19:43       ` Emilio Jesús Gallego Arias
2005-08-21 22:12       ` Eric W. Biederman
2005-08-22  9:05         ` Guillermo López Alejos
2005-08-22  9:18           ` Eric W. Biederman
2005-08-25  8:59             ` Guillermo López Alejos
2005-08-22 20:38       ` Helge Hafting
2005-08-18 23:12     ` Alan Cox
2005-08-18 22:55       ` Peter M. Groen
2005-08-19 10:28         ` Guillermo López Alejos

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