[PATCH][v2] powerpc 44x: support for 256KB PAGE_SIZE

Yuri Tikhonov yur at emcraft.com
Mon Dec 22 07:00:07 EST 2008


Hello Andreas,

On Sunday, December 21, 2008 you wrote:

> Yuri Tikhonov <yur at emcraft.com> writes:

>> Because ELF standard supports only page sizes up to 64K, then you should
>> use patched binutils for building applications to be run with the 256KB-
>> page sized kernel. The patch for binutils is rather trivial, and may
>> look as follows:
>>
>> --- binutils/bfd/elf32-ppc.c.orig
>> +++ binutils/bfd/elf32-ppc.c
>>
>> -#define ELF_MAXPAGESIZE                0x10000
>> +#define ELF_MAXPAGESIZE                0x40000

> You don't have to patch it, it's enough to pass -zmax-page-size=0x40000
> to the linker.

 Thanks for pointing this. I guess, the -zmax-page-size option is new 
to binutils 2.17.50.0.10. Right?

 I'll remove the STDBINUTILS config option from this patch then, and 
correspondingly update the description.

 Regards, Yuri

 --
 Yuri Tikhonov, Senior Software Engineer
 Emcraft Systems, www.emcraft.com




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