There is a moderate amount of code already in kprobes on ARM and the
current ARMv8 patch to deal with conditional execution of instructions.
One aspect of how this is handled is that instructions that fail their
predicate and are not (technically) executed are also not treated as a
hit kprobe. Steve Capper has suggested that the probe handling should
still take place because we stepped through the instruction even if it
was effectively a nop. This would be a significant change in how it
currently works on 32-bit ARM, and a change in the patch for ARMv8
(although it's not likely to be much of a change in the kernel code).
I need input on this. Do people have opinions?
-dl
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majord...@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
