> Mike Corcoran noticed that args[] array types/indices seem to be invalid > for fbt probes on 32-bit kernels that have 64-bit arguments. It looks like > argN are 32-bit values, and args[N] are also 32-bit, so the 64-bit arg is > contained in two argN or args[N] elements. Is this known? > > (specifically, he was looking at arg5/args[5] of map_addr_proc, and finding > it contained arg 4; this is because the offset_t arg, which is a > longlong_t, is apparently split across two 32-bit args.)
This is a longstanding bug that I first filed over 5 years ago: 4977683 64-bit arguments on 32-bit kernels confuse argN/args[N] It's a pretty significant pain to fix and fortunately not that many people have tripped over it. Further, you can work around the problem though it can be quite surprising. Adam -- Adam Leventhal, Fishworks http://blogs.sun.com/ahl _______________________________________________ dtrace-discuss mailing list dtrace-discuss@opensolaris.org
