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Re: x86_64 ld strange behaviour.
On 11/26/2010 02:37 PM, Alan Modra wrote:
> On Fri, Nov 26, 2010 at 11:10:59AM +0100, Markus Duft wrote:
>> i did not have any such problem with the i386 linker.
>
> You do, actually. The difference is that the i386 max page size is a
> lot smaller (0x1000 vs. 0x200000), so you didn't notice it..
>
> The information you seem to be missing is that for many targets, by
> default GNU ld produces executables suitable for demand paging. This
> puts constraints on file layout. For the simple case where disk page
> size is equal to virtual memory page size, if you don't have file
> offset modulo page size equal to vm address modulo page size, then
> pages off disk can't be read directly into process memory.
>
ah, i see... can i somehow disable this behaviour? otherwise, i think i can live with my kernel beeing loaded at 2MB instead of 1MB... i just wondered :)
Markus