Re: [PATCH] /proc/sys/kernel/pointer_size

[Daniel Jacobowitz <dan@debian.org>]

On Wed, Jan 08, 2003 at 04:03:52PM -0800, David S. Miller wrote:
>    From: Linus Torvalds <torvalds@transmeta.com>
>    Date: Wed, 8 Jan 2003 16:02:24 -0800 (PST)
>    
>    Or you can use an /etc/systype file that contains information.
>    
> That sounds fine to me.
> 
> A funny way to initialize this could be by reading System.map
> and seeing how many significant hexidecimal digits are used
> to list the kernel symbol addresses :-)

Don't try it, the perversity of MIPS will break you :)

Just to clarify something that I saw getting lost in this discussion:
Oprofile doesn't need to become built as a 64-bit binary, just
configured to accept 64-bit kernels.  So this doesn't rule out using a
32-bit oprofile (i.e. not needing a 64-bit libc) on a 64-bit kernel. 
It just means that we need to specify it somehow.

John, speaking of MIPS perversity: MIPS64 kernels can come in ELF32
files.  So you may just want to make this a configure-time option.

-- 
Daniel Jacobowitz
MontaVista Software                         Debian GNU/Linux Developer