Re: [RFC PATCH 5/6] uprobes: add bp_vaddr argument to consumerhandler
From: Oleg Nesterov
Date: Sat Dec 22 2012 - 11:35:36 EST
On 12/21, Anton Arapov wrote:
>
> struct uprobe_consumer {
> - int (*handler)(struct uprobe_consumer *self, struct pt_regs *regs);
> + int (*handler)(struct uprobe_consumer *self, unsigned long bp_vaddr, struct pt_regs *regs);
It seems that we can do better...
Just change regs->ip before calling ->handler(). In both cases we are
going to change it again, so ->ip doesn't matter.
Initially I though we can't do this for uretprobes, but it seems we can.
I won't insist though.
Oleg.
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/