Re: [PATCH v7 3.2-rc2 8/30] x86: analyze instruction and determinefixups.

[Oleg Nesterov]

On 11/18, Srikar Dronamraju wrote:
>
> +static void handle_riprel_insn(struct mm_struct *mm, struct uprobe *uprobe,
> +							struct insn *insn)
> +{
> [...snip...]
> +	if (insn->immediate.nbytes) {
> +		cursor++;
> +		memmove(cursor, cursor + insn->displacement.nbytes,
> +						insn->immediate.nbytes);
> +	}
> +	return;
> +}

Of course I don not understand this code. But it seems that it can
rewrite uprobe->insn ?

If yes, don't we need to save the original insn for unregister_uprobe?

Oleg.

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