Re: [uClinux-dev] Is supervisor/user mode is necessary for uCLinux ?

From: Joe deBlaquiere (jadb@redhat.com)
Date: Tue Jan 30 2001 - 02:31:02 EST


I would think that you could program around the lack of a SVC mode, but 
the gnu tools thing is going to be an issue. There are quite a few GCC 
Extensions, and the Linux kernel makes use of several of them quite 
extensively. You can find a list of the extensions at:

http://gcc.gnu.org/onlinedocs/gcc_5.html#SEC69

The thing is you really don't want to be trying to maintain the changes 
to support a different compiler since you'll be having to fix them all 
again with every new version of the OS.

You are planning on using the 2.4.X tree, right?

Mahadev K Cholachagudda wrote:

> Hello all,
> 
> Here we are planning to port the uCLinux for a different architecture which
> doesn't has the following.
> 
> -superuser and user mode in the chip architecture
> -gnu tools.
> 
> Is these modes are necessary to port the uCLinux to a different architecture
> ?
> 
> please help,
> 
> With best regards,
> 
> \/ \/   Mahadev K. Cholachagudda
> O . O   mailto:kcmahadev@zilogindia.com
>  ( )
> 
> This message resent by the uclinux-dev@uclinux.org list server http://www.uClinux.org/


-- 
Joe deBlaquiere
Red Hat, Inc.
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