Date: Wed, 22 Sep 2004 18:46:49 -0400 From: Allan Fields <bsd@afields.ca> To: Gordon David <kylincsos@hotmail.com> Cc: freebsd-hackers@freebsd.org Subject: Re: execute a user process in the kernel Message-ID: <20040922224649.GG47410@afields.ca> In-Reply-To: <BAY1-F12o3npvqnJNeO00048b8a@hotmail.com> References: <BAY1-F12o3npvqnJNeO00048b8a@hotmail.com>
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On Wed, Sep 22, 2004 at 08:49:11AM +0000, Gordon David wrote:
> Hello,
>
> I have a question. Anyone would like to tell me how to execute a user
> process or shell script in the kernel?
You probably really don't want to do this and if you do, there is
likely a better approach.
> As we know, the kernel forks a process named initproc and executes
> /sbin/init, etc. If I want to execute a user level process, such as a
> simple printf("Hello world") in a driver
Why?
> what shall I do?
Lots of good references on distinctions between kernel and userland.
Try:
The Design and Implementation of 4.4BSD (First few chapters)
file:///usr/share/doc/en/books/design-44bsd/
> Thanks
> Gordon
--
Allan Fields, AFRSL - http://afields.ca
2D4F 6806 D307 0889 6125 C31D F745 0D72 39B4 5541
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