[Fwd: Re: [RFA 3/5] Prec: x86 segment register support: target]

[Hui Zhu]

On Tue, Mar 23, 2010 at 02:47, Doug Evans <dje@google.com> wrote:
> On Mon, Mar 22, 2010 at 11:26 AM, Michael Snyder <msnyder@vmware.com> wrote:
>> I'd just like to point out that while all this sounds great,
>> it shouldn't be a prerequisite to the original task of just
>> getting prec to record the segments and offsets correctly.
>>
>> Maybe we should split these two tasks, so that Teawater can
>> go ahead and accomplish his.
>
> To the extent that they can be split, IWBN alright.
>
> I wonder if the interface is sufficient though (setting aside where to
> put it and how it will look).
> Any particular o/s might not provide sufficient hooks of course.
> linux's modify_ldt, AIUI, let's one change more than just foo_base.
> NativeClient http://code.google.com/p/nativeclient/ uses it, for example.
>

Thanks Doug.

I suggest we support segment base step by step.
When the OS that support it will show the xxx_base to user, the
unsupport OS will show nothing.

What do you think about it?

Best regards,
Hui