On Thu 2016-03-10 13:25:08, Petr Mladek wrote: > On Wed 2016-03-09 18:30:17, Torsten Duwe wrote: > > After the mini stack frame is no longer required for TOC storage, it can > > be eliminated iff the functionality of klp_return_helper, which required > > a stack frame for the extra return address previously, is carried out > > by the replacement function now. This requires _every_ live patch replacement > > function to execute the following (or similar) sequence of machine instructions > > just before every return to the original caller: > > I have thought about it and it is a nono from my point of view. > It is too error prone, especially that there are functions that > call return on several locations. BTW: How is this solved in kretprobes? Or is it easier there? Best Regards, Petr -- To unsubscribe from this list: send the line "unsubscribe live-patching" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
