Help in 'kernel_execve'
Rodrigo Rubira Branco (BSDaemon)
rodrigo at kernelhacking.com
Mon Jun 4 10:44:32 CDT 2007
If you just want to execute some process from kernel mode, why not just use
call_usermodehelper()?
Cya,
Rodrigo (BSDaemon).
--
http://www.kernelhacking.com/rodrigo
Kernel Hacking: If i really know, i can hack
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--------- Mensagem Original --------
De: biswa.nayak at wipro.com
Para: sam at ravnborg.org <sam at ravnborg.org>
Cópia: kernel-mentors at selenic.com
Assunto: RE: Help in 'kernel_execve'
Data: 04/06/07 15:03
>
>
> > From: Sam Ravnborg [mailto:sam at ravnborg.org]
> >
> > On Mon, Jun 04, 2007 at 05:40:44PM +0530, biswa.nayak at wipro.com
wrote:
> > >
> > > > -----Original Message-----
> > > > From: Sam Ravnborg [mailto:sam at ravnborg.org]
> > > > Subject: Re: Help in 'kernel_execve'
> > > >
> > > > On Mon, Jun 04, 2007 at 12:57:06PM +0530,
> > biswa.nayak at wipro.com wrote:
> > > > >
> > > > > Hi
> > > > > I am currently trying to understand the boot sequence
of Linux.
> > > > >
> [snip]
> >
> >
> > That does not look like a kernel you compiled yourself.
> > Did you really execute make in the <Path_to_linux> dir?
> > Otherwise your added export will not help you.
> >
>
> Yups, I have compiled and booted from the above mentioned kernel
>
> > >
> > > [biswa at nerdbox test]$ uname -a
> > > Linux nerdbox.nerdbox 2.6.20.4 #1 SMP Sat Jun 2 17:49:20
> > IST 2007 i686
> > > i686 i386 GNU/Linux
> > >
> > > [biswa at nerdbox test]$ cat /proc/kallsyms | grep
> > kernel_execve c01072ea
> > > T kernel_execve
> > This does not tell is a symbol is exported or not.
> > Try to look into modules.symvers wich list all exported functions.
>
> [biswa at nerdbox linux-2.6.20.4]$ nm vmlinux | grep kernel_execve
> c01072ea T kernel_execve
> [biswa at nerdbox linux-2.6.20.4]$ cat /proc/kallsyms | grep kernel_execve
> c01072ea T kernel_execve
>
> As 'kernel_execve' symbol is found on vmlinux and the same address
> is reflected in kallsyms I believe it should have got exported.
>
> But again, When I checked into Modules.symvars I could not find
> kernel_execve in that.
>
> How strange?
>
> What can be the reason?
>
> Thanks for your help
> Biswa
>
> >
> > Sam
> >
>
>
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