beginners question

beginners question

[Mad Props]

Hi,

i wrote a little MIPS startup code that uses the serial port to print some
output. Further I enabled timer interrupts. So far, I'm using kseg1 since
nothing else is intialized.

I have a static variable in my C exception hander. The problem with it: it's
apparently not within kseg1 but in the user segment and causes the exception
handler to get invoked recursively. How can I change this so that all
variables / code use kseg1 ?

thx

Thomas

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Re: beginners question

[Ralf Baechle]

On Mon, Nov 22, 2004 at 02:25:06AM +0100, Mad Props wrote:

> i wrote a little MIPS startup code that uses the serial port to print some
> output. Further I enabled timer interrupts. So far, I'm using kseg1 since
> nothing else is intialized.
> 
> I have a static variable in my C exception hander. The problem with it: it's
> apparently not within kseg1 but in the user segment and causes the exception
> handler to get invoked recursively. How can I change this so that all
> variables / code use kseg1 ?

Seems like you need a linker script.  The kernel has it's linker script
in arch/mips/kernel/vmlinux.lds.S but due to complexity that's probably
not a good example to look at.

  Ralf