[gentoo-soc] Re: cross_container_support - progress report #9

[Jing Huang]

On Tue, Jul 31, 2012 at 7:30 PM, Luca Barbato <lu_zero@g.o> wrote:
> On 07/31/2012 05:45 PM, Jing Huang wrote:
>> Hi,
>>
>> == Progress of last Week ==
>>
>> In the last week,  my qemu-linux patches had been reviewed by the qemu
>> community.
>>
>> I investigated how to config dynamic libraries in lxc container.:
>>
>> 1. mount host's /lib /usr/lib /usr/local/lib to lxc container
>>
>> 2. modify lxc container's ld.so.conf to link these libs.
>>
>> 3. ldconfig -Nf /etc/ld.so.conf to make settings available. (The
>> ld.so.cache will include arm libraries by default. How to ignore
>> them?)
>>
>> I am still debugging this method.
>>
>> Additionally, I found I must execute "qemu-static-i386  x86-program"
>> in lxc container to make it run. Is it right?
>
> No it is wrong, you should call the runtime linker.

When I execute x86-program(builded with dynamic libraries) in lxc
container, it shows:
"bash: x86-program: No such file or directory"

Obviously,  the container has not called the right dynamic
linker(ld-linux.so) to interpret the x86-program.
Maybe I could register this linker or the linker wrap to
/proc/sys/fs/binfmt_misc ?

>
>> == Plans for this week ==
>>
>> 1. Still investigate dynamic libraries configure.
>
> It will take probably more time.
>
>> 2. wait for vapier's help. If it is possible, would you offer me the
>> rough tech roadmap of patching crossdev and/or the toolchain eclass
>> you mentioned last letter?
>
> First let's try to wrap up what we have now available and get more
> people trying it =) That means document all the steps in the wiki and
> get voluteers to try them.

OK. I am doing it.

>
> lu
>
> --
>
> Luca Barbato
> Gentoo/linux
> http://dev.gentoo.org/~lu_zero
>