egcs-1.1 status

[Andi Kleen]

On Fri, Aug 21, 1998 at 10:24:54PM +0200, Jeffrey A Law wrote:
> 
> 
>   In message < 19980821221249.A16758@kali.lrz-muenchen.de >you write:
>   > I was refering to 2.1 kernels. There were some fixes in 2.1, but it seems t hey 
>   > were not enough to make it work in all cases. If you look at 
>   > include/asm-i386/string.h in a Linux installation you'll see that it is 
>   > rather hairy asm code, that is why I suggested to replace the non speed
>   > critical things with C functions.
> Oh.  Someone would have to take a very careful look at them to see
> if they're really correct.

Their main problem is that they use too many registers.

> 
>   > A new problem that just has appeared today is that Linux 2.1 uses 
>   > __attribute__((regparm)) for some critical functions, and at least egcs 1.0
>   > seems to have problems to generate correct code with this in all cases.
> Oh god.  Please stop them from doing this.  regparm does not work on
> the x86 and will never work correctly on the x86.  They're just going
> to shoot themselves in the foot.

Hmm. Do you think explicitely coding it as an __asm__ would be sufficient
as a workaround?


-Andi