Tony, On Thu, Aug 18, 2005 at 11:57:03AM -0700, Luck, Tony wrote: > >Anyway, I looked quickly at the simulator code. I don't see anything > >wrong on that side. On SSC_COMPLETION, you end up doing a byte by byte > >memcpy for copyin for disk_stat and a byte by byte for copyout. Not much > >could go wrong there. The definition for disk_stat is identical (w/o the > >aligned attribute). > > Ah ... but gcc has an unpleasant habit of inlining memcpy() calls. This > is really annoying when you have taken the trouble to replace code > does a structure copy with an explicit call to memcpy() becuase > you know that one of the source or destination is unaligned, only > to have gcc generate some inline ld8/st8 instructions.
The simulator is not using the regular memcpy() routine it has its own custom routine (which is not named memcpy). -- -Stephane - To unsubscribe from this list: send the line "unsubscribe linux-ia64" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html
