Segher Boessenkool <seg...@kernel.crashing.org> writes: > On Wed, Nov 26, 2014 at 05:50:27PM -0600, Peter Bergner wrote: >> On Thu, 2014-11-27 at 09:38 +1100, Michael Ellerman wrote: >> > On Thu, 2014-11-27 at 08:11 +1100, Anton Blanchard wrote: >> > > I used some 64 bit instructions when adding the 32 bit getcpu VDSO >> > > function. Fix it. >> > >> > Ouch. The symptom is a SIGILL I presume? >> >> Nope, you don't get a SIGILL when executing 64-bit instructions in >> 32-bit mode, so it'll happily just execute the instruction, doing >> a full 64-bit compare. I'm guessing that the upper 32-bits of both >> r3 and r4 contain zeros, so we're probably just getting lucky. > > You will get a SIGILL if you run on 32-bit hardware.
Not on the 7447A, fwiw. Andreas. -- Andreas Schwab, sch...@linux-m68k.org GPG Key fingerprint = 58CA 54C7 6D53 942B 1756 01D3 44D5 214B 8276 4ED5 "And now for something completely different." _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org https://lists.ozlabs.org/listinfo/linuxppc-dev
