On 01/15, Josh Stone wrote: > > On 01/12/2013 09:06 AM, Oleg Nesterov wrote: > > On 01/10, Josh Stone wrote: > >> and for uretprobes we want the original return address. > > > > Yes, Anton's v2 does this. > > > > But. Don't you also need to know the address of function we are going > > to return from? > > > > Probably you do not, uprobe_consumer should know which function (but > > not vaddr) it probes, but please confirm. > > Right, this is fine.
OK, thanks. > Setting regs->ip to the entry address of the function we just returned > from would actually be harmful, Yes, yes, I understand. I meant, ->ret_hander() could have the additional argument to tell the address of the function. > Maybe it would be useful if regs->ip reflected the address of the RET > instruction we just executed, but only if e.g. regs->sp also got rewound > accordingly. Since I don't think this is possible, just setting > regs->ip to the return target is good enough. Yes, I guess this is not possible. Oleg. -- 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/
