Re: [rft] s2ram wakeup moves to .c, could fix few machines

H. Peter Anvin
2008-02-08T21:02:57Z

Pavel Machek wrote:
> On Fri 2008-02-08 17:23:15, Rafael J. Wysocki wrote:
>> On Friday, 8 of February 2008, Pavel Machek wrote:
>>> Hi!
>> Hi,
>>
>>>>> I really need the entry point to be at offset 0, so
>>>>> that I can get
>>>>> pointers to my data. I could not figure out how to do
>>>>> it any other
>>>>> way. And if 0 is taken, I thought I'd put header at the
>>>>> end.
>>>>>
>>>> Why not just put the structure at 0, and put pointers in
>>>> the structure to everything else you need?
>>> segments:offsets rear its ugly head here. I need %ds to point to my
>>> data, and the way to do it is copy it from %cs; that needs start to be
>>> at 0.
>> Hm, why exactly is that necessay?
>
> It is not _neccessary_. Try to come up with another method that gets
> relocations right. I could not :-(.
>
> (Actually, putting table at the offset 0 and short jump at beggining
> of the table would probably do the trick. But that still keeps code at
> offset 0 :-).
> Pavel

Why not just put a pointer to the start of the code in the table, and
make an indirect call to it?

Where is this code?

-hpa