Hi...
On Sun, Feb 24, 2013 at 8:56 AM, horseriver <horserivers@xxxxxxxxx> wrote:
> I have find this answer .
> It is defined in lds script file .
>
> here is the code :
> SECTIONS
> {
> . = 0xC0000000 + 0x100000;
> /* read-only */
> _text = .; /* Text and read-only data */
>
>
> why use 0xC0000000 as its start ? why not just use 0x100000 only ?
> if use 0xC0000000,every linked symbole will be prefixed by 0xc , what is the purpose ?
maybe because some symbols are object of relocation, so their address
don't need to be incremented with 0xc000 0000.
Different situation with startup_32. AFAIK it's doing many thing
during early protected mode initialization, so its address must be set
to certain number.
--
regards,
Mulyadi Santosa
Freelance Linux trainer and consultant
blog: the-hydra.blogspot.com
training: mulyaditraining.blogspot.com
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