question about setup.c

question about setup.c

[John Gluck]

Hi

I've been poking around the kernel startup code to try and understand 
the sequence of events. I came across something I don't understand and 
which might be redundant.

This is from the 2.6.0 kernel:

In arch/i386/kernel/setup.c the parse_cmdline_early() function, the 
argument "mem=XXX[kKmM]" is parsed.

In arch/sh/kernel/setup.c the parse_cmdline() function also parses 
"mem=XXX[kKmM]"

Could someone please explain this.

I am not subscribed to this list so a reply directly to me would be 
appreciated.

Thanks and a Merry Christmas to everyone

John

Re: question about setup.c

[Paolo Ornati]

On Tuesday 23 December 2003 19:43, John Gluck wrote:
> Hi
>
> I've been poking around the kernel startup code to try and understand
> the sequence of events. I came across something I don't understand and
> which might be redundant.
>
> This is from the 2.6.0 kernel:
>
> In arch/i386/kernel/setup.c the parse_cmdline_early() function, the
> argument "mem=XXX[kKmM]" is parsed.
>
> In arch/sh/kernel/setup.c the parse_cmdline() function also parses
> "mem=XXX[kKmM]"
>
> Could someone please explain this.

This is because they are two different architectures!
If you are compiling for i386 you aren't compiling for any other 
architecture, and vice versa!

IOW: only one subdirectory of "linux/arch" is used for each compilation.

>
> I am not subscribed to this list so a reply directly to me would be
> appreciated.
>
> Thanks and a Merry Christmas to everyone
>
> John
>

BYE

-- 
	Paolo Ornati
	Linux v2.4.23