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FromJakub Jelinek <>
SubjectRe: csum_partial_copy_fromuser patch, #2
DateTue, 4 Feb 1997 09:18:32 +0100 (MET)
> 
>    Date: Mon, 3 Feb 1997 21:06:31 +0100 (MET)
>    From: Ingo Molnar <mingo@pc5829.hil.siemens.at>
> 
>    On Mon, 3 Feb 1997, Jakub Jelinek wrote:
> 
>    > [...] The fixup would then look down callee's pc, look in there to see
>    > if exception handling wanted. [...]
> 
>    how do you do this? GCC is free to do anything with the stack.
> 
> Jakub forgets sometimes that not all architectures are as nice as
> Sparc for this sort of thing.  Callers PC is always in a consistant
> place, no stack frame mess, it is just there in the right register.
> 

Well, but I guess we're talking about routines in that may and should be
written in assembly and there it is I think easy on every architecture to
guess the return pc...

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