On 11 February 2013 15:07, Al Viro <v...@zeniv.linux.org.uk> wrote: > I'd suggest asking itanic folks; they do *not* put callee-saved stuff into > sigcontext. AFAICS, they don't have setcontext() implemented as a syscall > at all - it's done as sigprocmask() + doing to callee-saved registers what > longjmp() does.
Just to round off this discussion, after giving it some more thought I agree that the case where you would need callee-saved registers restored is probably rather pathological. Any sane use of get/set/swapcontext is manageable without this. So, Vineet, I'm now convinced your approach is sound. I will probably amend the OpenRISC arch to behave similarly. Consider your entire patch Acked now. /Jonas -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
