On Iau, 2006-03-09 at 09:06 +1100, Paul Mackerras wrote: > I'd be interested to know what the C standard says about whether the > compiler can reorder writes that may be visible to a signal handler. > An interrupt handler in the kernel is logically equivalent to a signal > handler in normal C code.
The C standard doesn't have much to say. POSIX has a lot to say and yes it can do this. You do need volatile or store barriers in signal touched code quite often, or for that matter locks POSIX/SuS also has stuff to say about what functions are signal safe and what is not allowed. Alan - To unsubscribe from this list: send the line "unsubscribe linux-arch" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html
