[yocto] prelink & mklibs problem

[Jegan Chandru]

I recommend you to file a bug here https://bugzilla.yoctoproject.org/ if
not done already. You may get a proper answer on armhf support there. From
what I see, (someone please correct me if I am wrong), there is no prelink
dynamic link armhf patch. You can also create and submit the patch for
review. AFAIK, you are gonna need to something like below,

.dynamic_linker = "/lib/ld-linux-armhf.so.3"  in arch-arm.c.

This is not tested though. Please do a test yourselves.

-JC

On Mon, Dec 8, 2014 at 1:52 PM, Qiang Yu <yuq825 at gmail.com> wrote:

> Thanks for your reply. I almost give up.
>
> You mean that current yocto build doesn't support hard float ABI prelink,
> and the prelink source code needs to
> be modified to use ld-linux-armhf.so.3?
>
> So this problem affect all armhf build of yocto, in other words prelink
> doesn't work for yocto armhf at all now?
>
> Regards,
> Qiang
>
> On Mon, Dec 8, 2014 at 3:28 PM, Jegan Chandru <pcjegan at gmail.com> wrote:
>
>> Hi,
>>
>> I think it has to do with the ld-linux-armhf.so.3. May be you should
>> tell prelink that you have hard float ARM ABI to prelink for, than
>> ld-linux.so.3 . It means you need to add ld-linux-armhf.so.3 as a dynamic
>> linker.
>> You should patch the prelink source to get this done.
>>
>> HTH.
>>
>> -JC
>>
>>
>>
>> On Fri, Dec 5, 2014 at 7:41 AM, Qiang Yu <yuq825 at gmail.com> wrote:
>>
>>> Hi all,
>>>
>>> I'm building a image with local.conf:
>>> USER_CLASSES ?= "buildstats image-mklibs image-prelink"
>>>
>>> but I think prelink does nothing on my image, because the MD5SUM is the
>>> same before and after
>>> the prelink stage. The mklibs stage is also strange not print anything.
>>> How to make prelink and
>>> mklibs really work?
>>>
>>> Here is the log of log.do_rootfs:
>>>
>>> NOTE: ###### Generate images #######
>>> NOTE: Executing mklibs_optimize_image ...
>>> DEBUG: Executing shell function mklibs_optimize_image
>>> DEBUG: Shell function mklibs_optimize_image finished
>>> NOTE: Executing prelink_image ...
>>> DEBUG: Executing shell function prelink_image
>>> Size before prelinking 49304.
>>> /opt/yocto/rootfs/tmp/sysroots/x86_64-linux/usr/sbin/prelink:
>>> /sbin/fstab-decode: Using /lib/ld-linux-armhf.so.3, not /lib/ld-linux.so.3
>>> as dynamic linker
>>> /opt/yocto/rootfs/tmp/sysroots/x86_64-linux/usr/sbin/prelink:
>>> /sbin/bootlogd: Using /lib/ld-linux-armhf.so.3, not /lib/ld-linux.so.3 as
>>> dynamic linker
>>> /opt/yocto/rootfs/tmp/sysroots/x86_64-linux/usr/sbin/prelink:
>>> /sbin/killall5: Using /lib/ld-linux-armhf.so.3, not /lib/ld-linux.so.3 as
>>> dynamic linker
>>> /opt/yocto/rootfs/tmp/sysroots/x86_64-linux/usr/sbin/prelink:
>>> /sbin/init.sysvinit: Using /lib/ld-linux-armhf.so.3, not /lib/ld-linux.so.3
>>> as dynamic linker
>>> /opt/yocto/rootfs/tmp/sysroots/x86_64-linux/usr/sbin/prelink:
>>> /sbin/halt.sysvinit: Using /lib/ld-linux-armhf.so.3, not /lib/ld-linux.so.3
>>> as dynamic linker
>>> /opt/yocto/rootfs/tmp/sysroots/x86_64-linux/usr/sbin/prelink:
>>> /sbin/shutdown.sysvinit: Using /lib/ld-linux-armhf.so.3, not
>>> /lib/ld-linux.so.3 as dynamic linker
>>> /opt/yocto/rootfs/tmp/sysroots/x86_64-linux/usr/sbin/prelink:
>>> /sbin/runlevel.sysvinit: Using /lib/ld-linux-armhf.so.3, not
>>> /lib/ld-linux.so.3 as dynamic linker
>>> /opt/yocto/rootfs/tmp/sysroots/x86_64-linux/usr/sbin/prelink:
>>> /usr/sbin/dropbearmulti: Using /lib/ld-linux-armhf.so.3, not
>>> /lib/ld-linux.so.3 as dynamic linker
>>> /opt/yocto/rootfs/tmp/sysroots/x86_64-linux/usr/sbin/prelink:
>>> /bin/mountpoint.sysvinit: Using /lib/ld-linux-armhf.so.3, not
>>> /lib/ld-linux.so.3 as dynamic linker
>>> /opt/yocto/rootfs/tmp/sysroots/x86_64-linux/usr/sbin/prelink:
>>> /bin/busybox.suid: Using /lib/ld-linux-armhf.so.3, not /lib/ld-linux.so.3
>>> as dynamic linker
>>> /opt/yocto/rootfs/tmp/sysroots/x86_64-linux/usr/sbin/prelink:
>>> /bin/busybox.nosuid: Using /lib/ld-linux-armhf.so.3, not /lib/ld-linux.so.3
>>> as dynamic linker
>>> /opt/yocto/rootfs/tmp/sysroots/x86_64-linux/usr/sbin/prelink:
>>> /usr/bin/utmpdump.sysvinit: Using /lib/ld-linux-armhf.so.3, not
>>> /lib/ld-linux.so.3 as dynamic linker
>>> /opt/yocto/rootfs/tmp/sysroots/x86_64-linux/usr/sbin/prelink:
>>> /usr/bin/mesg.sysvinit: Using /lib/ld-linux-armhf.so.3, not
>>> /lib/ld-linux.so.3 as dynamic linker
>>> /opt/yocto/rootfs/tmp/sysroots/x86_64-linux/usr/sbin/prelink:
>>> /usr/bin/last.sysvinit: Using /lib/ld-linux-armhf.so.3, not
>>> /lib/ld-linux.so.3 as dynamic linker
>>> /opt/yocto/rootfs/tmp/sysroots/x86_64-linux/usr/sbin/prelink:
>>> /usr/bin/opkg-cl: Using /lib/ld-linux-armhf.so.3, not /lib/ld-linux.so.3 as
>>> dynamic linker
>>> /opt/yocto/rootfs/tmp/sysroots/x86_64-linux/usr/sbin/prelink:
>>> /usr/bin/bmw: Using /lib/ld-linux-armhf.so.3, not /lib/ld-linux.so.3 as
>>> dynamic linker
>>> /opt/yocto/rootfs/tmp/sysroots/x86_64-linux/usr/sbin/prelink:
>>> /usr/bin/wall.sysvinit: Using /lib/ld-linux-armhf.so.3, not
>>> /lib/ld-linux.so.3 as dynamic linker
>>> Size after prelinking 49304.
>>> DEBUG: Shell function prelink_image finished
>>>
>>> Regards,
>>> Qiang
>>>
>>>
>>> --
>>> _______________________________________________
>>> yocto mailing list
>>> yocto at yoctoproject.org
>>> https://lists.yoctoproject.org/listinfo/yocto
>>>
>>>
>>
>>
>> --
>> JCP
>>
>
>


-- 
JCP
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