Here is a patch implements a way for uprobes to skip single step

Here is a patch implements a way for uprobes to skip single step
when a probe in on a nop instruction.

Currently its implemented for nop on x86/x86_64 and s390.
For powerpc, its implemented on all instructions that can be emulated.
(For this emulation code is borrowed from arch/powerpc/lib/sstep.c)

I havent tested it on s390. Updated with comments from Jim.

Signed-off-by: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Signed-off-by: Ananth N Mavinakayanahalli <ananth@in.ibm.com>
Reported-by: Josh Stone <jistone@redhat.com>