Re: [gentoo-soc] cross_container_support - progress report #7

[Luca Barbato <lu_zero@gentoo.org>]

On 07/10/2012 03:31 PM, Jing Huang wrote:
> First, I try to fix the ping issues in qemu-user of arm-gentoo
> container. The patch is attached.

Try to propose it to the qemu ml.

> * The do_setsockopts function in qemu-user does not support SOL_RAW
> socket which is used in ping program.
> 
> * The recvmsg in main_loop of ping_common.c could not fetch
> sockaddr_in struct. That is because do_sendrecvmsg in qemu-user does
> not pass the msg->msg_name to the target.
> So the ping will show "64 bytes from 0.0.0.0: icmp_req=1 ttl=64 time=1.16 ms".

Good investigation =)

> Second, I am investigating how to execute local gcc toolchain in
> arm-gentoo container.
> 
> At begging, I want to use ldd to parse each cross-gcc toolchain
> executable in arm container. Then copy the related libraries to
> gentoo-arm rootfs and config the ld.so.conf to make cross-gcc running
> locally.

You could also investigate mount --bind over files, that's how I'm doing
it currently and works up to a point =)

> Now, I think I could modify the crossdev script and build cross-gcc
> with LDFLAGS="-static". So the cross-gcc can be executed locally in
> arm-gentoo container.

Seems an interesting approach as well. Less fun manging with runtime
paths and runtime linkers.

lu

-- 

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