On Friday 04 November 2016 07:37 AM, Andrew Donnellan wrote: > On 03/11/16 21:27, Ravi Bangoria wrote: >> Yes, kernel-space hw-breakpoint feature is broken on LE without this. > > Is there any actual user-visible feature that depends on this, or is this > solely for debugging and development purposes? > > It would of course be *nice* to have it in stable trees (particularly so we > pick it up in distros) but I'm not convinced that enabling HW breakpoints on > a platform where it has *never* worked qualifies as an "actual bug". > > (BTW many thanks for fixing this - I had a shot at it late last year but > never quite got there!)
Thanks Andrew, 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. So yes, there is no user-visible feature that depends on this. -Ravi
