Re: [PATCH 3/8] add mem64_min/max control

Yinghai Lu
2012-11-18T05:39:08Z

On Sat, Nov 17, 2012 at 9:35 PM, Yinghai Lu <yinghai@kernel.org> wrote:
> On Sat, Nov 17, 2012 at 9:20 PM, Eric W. Biederman
> <ebiederm@xmission.com> wrote:
>> Yinghai Lu <yinghai@kernel.org> writes:
>>>
>>> there is lots of R_X86_64_32 and R_X86_64_32S for 64bit purgatory.
>>>
>>> those come from global variables...could kill some by converting them static...
>>>
>>> but still have some global string or ro data....
>>>
>>> build one big file include all .S ?
>>
>> For R_x86_64_32 and R_x86_64_32S the problem is that the instructions
>> are using absolute 32bit addresses.
>>
>> It is probably overkill but we should be able to solve this with
>> by adding "-mcmodel=large" to the build of purgatory.
>
> it kill some...
>
> still have left.... looks they from .S
>
> yhlu@linux-siqj:~/xx/xx/utils/kexec-tools> readelf --relocs
> purgatory/purgatory.ro | grep R_X86_64_32
> 0000000005e9 00020000000b R_X86_64_32S 0000000000000000 .rodata + c0

looks like .S did not get that -mcmodel=large applied..