Re: [gentoo-user] Re: cross-compile attempt

[R0b0t1]

On Wed, Aug 3, 2016 at 12:26 PM, james <garftd@×××××××.net> wrote:
> On 08/03/2016 03:20 AM, Neil Bothwick wrote:
>>
>> On Tue, 2 Aug 2016 17:26:09 -0700, Ian Zimmerman wrote:
>>
>>>> If you are using systemd, it is much simpler to use a container with
>>>> systemd-nspawn that chroot, it takes care of all the mucking around
>>>> required to get /dev, /proc and friends available to the container.
>>>>
>>>> The only mount I need to take care of myself is for $PKGDIR, which is
>>>> also available via NFS on the target box.
>>>
>>>
>>> Even with chroot and without without systemd, it pays to create a dead
>>> simple shell script that does all the mounting.  You can even have that
>>> script itself exec chroot as the last step.
>>
>>
>> That's what I do, only the script is even simpler now ;-)
>>
>> While containers are simpler, it is still easy to miss out a step, so a
>> script makes a lot of sense.
>>
>>
>
> OK, so now I curious to try this out too. I'd be interested in testing
> this script for a hardware system (situation) exactly identical to Mick.
> I do not use systemd. If someone wanted to post a  script via gist
> (http://www.labnol.org/internet/github-gist-tutorial/) or elsewhere
> or privately or via private email, centric to openrc, I'd test it out,
> for a variety of final target image needs.
>
> Also any other scripts for arm64v8 builds on native arm64 systems would
> be of keen interest to me. I'd settle for a script for armv7 to use as a
> starting point.
>
>
>
> James
>

You can compile for i386 natively with the multi-target libraries
installed. I have used a chroot instead when my system was installed
without the i386 libraries.

My other thought was using a cross compiler, but I was running out of
disk space at the time and needed to support multiple systems. The
major issue here is it is hard (or cumbersome) to keep partial
systems; each crossdev prefix will be a self-contained system.