Re: Trying to convert old modules to newer kernels

[lsorense@csclub.uwaterloo.ca (Lennart Sorensen)]

On Thu, Dec 20, 2007 at 11:13:19AM -0500, linux-os (Dick Johnson) wrote:
> It never gets to the printk(). You were right about the
> compilation. Somebody changed the kernel to compile with
> parameter passing in REGISTERS! This means that EVERYTHING
> needs to be compiled the same way, 'C' calling conventions
> were not good enough!
> 
> FYI, it has been previously shown that passing parameters
> in registers on register-starved ix86 machines is always
> a loss, because the registers need to be freed up, either
> by saving them on the stack or as dummy memory variables.
> 
> Now, they've done it to the entire kernel!

It's a config option.  I think redhat was the first to actually start
using it on their distributions.  Many distributions don't use it.
Debian does not use it on their kernels.

--
Len Sorensen