Re: [Etherboot-developers] Adding real-mode stack for prot_to_real

[<ke...@us...>]

>I just posted a patch that does this.  I used a 4K stack and I copy
>more than 3 arguments since it's easy to do so.  I also made an
>allowance so that we could return to etherboot if necessary.

Sorry, your method is not good enough. You should not allocate a static
area for the stack, it wastes space and if any more stuff is added to
first32.c it will add pressure on space. Rather just point %esp to the
top of the 6kB area allocated to first32 (RELOC+6144). That way, the
stack only grows as much as needed. BTW, it's a 1kB stack you were
allocating. If you had allocated 4kB, you would have run out of space
already since the text size of first32 is already > 4kB.