On Thu, Jul 10, 2014 at 05:33:50AM +0100, AKASHI Takahiro wrote:

Will,

 >  (1) Updating syscallno based on w8, but this ties us to the current ABI
 >      and could get messy if this register changes in the future.

So, is this the conclusion that I should follow?

I think so, with the exception that if the tracer/debugger sets it to -1 to
abort the syscall, then we should restore the original value.

Will