Keith Owens wrote:
On Tue, 02 Aug 2005 18:12:27 -0700,
George Anzinger <[email protected]> wrote:
How about something like:
if (current + THREAD_SIZE/sizeof(long) - (regs + sizeof(pt_regs)) > MAGIC)
current points to the current struct task, regs points to the kernel
stack. Those two data areas can be completely separate, as they are on
i386. Also i386 uses a separate kernel stack for interrupts.
Acually I must mean the thread_info and not current. i386 only uses a
seperate stack if you use 4K stacks. I think others use seperate
interrupt stacks, however :(. Also, on thinking on it, I think some
archs don't call the registers pt_regs either. Oh, well, it was a
thought...
Waiting for its brother... :)
--
George Anzinger [email protected]
HRT (High-res-timers): http://sourceforge.net/projects/high-res-timers/
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