On Sun, Apr 19, 2026 at 11:10:47PM -0700, Kevin Bowling wrote: > We are instrumenting the 64-bit kernel, but we are using a 32-bit > userland utility to tell us what is going on in the 64-bit kernel. I > think it's a binary contract, the tprof driver pumps out the hardware > events, so you'd want the 'real' PC but for this ABI break. On 32-bit > systems it would just make the profile files a little bigger.
Ok, for that case we can build the userland tool as 64bit (I think we do that for a few tools already). N32 userland is special as we don't have to expect a 32bit kernel (different to e.g. sparc userland where both could happen). But from this PoV your suggested change makes sense to me. Martin
