Re: ELKS: Application Code, Data, Heap and Stack Size??

[Anonymous]

Greg Haerr writes:
> 
> 
> : The function stack_check() in arch/i86/kernel/process.c checks to see
> : whether the stack pointer is less then the brk pointer, and segfaults if it
> : is.
> : 
>       stack_check() is used by the kernel to see if the user process
> has run out of space, only during a system call.  If anyone really cares,
> I think that we need to implement the checking on a per-function call basis,
> as this is where all stack data is actually allocated, and where the
> process actually trashes the stack.
> 

I don't think we can do this without slaying performance, and relying on
user programs to look after themselves.

Al