Re: [PATCH 1/3] powerpc: Emulation support for load/store instructions on LE

From: Anton Blanchard
Date: Sat Nov 05 2016 - 15:32:25 EST


> kprobe, uprobe, hw-breakpoint and xmon are the only user of
> emulate_step.
> Kprobe / uprobe single-steps instruction if they can't emulate it, so
> there is no problem with them. As I mention, hw-breakpoint is broken.
> However I'm not sure about xmon, I need to check that.

I was mostly concerned that it would impact kprobes. Sounds like we are
ok there.

> So yes, there is no user-visible feature that depends on this.

Aren't hardware breakpoints exposed via perf? I'd call perf