Subject: [alpine-devel] arm aarch64 support

From: 王进 <[email-masked]>
Date: Mon, 20 Jun 2016 20:10:29 +0800 (CST)

Hello alpine devs,
    I want to build an aarch64 rootfs, and now I have compile apk-tools and abuild on CentOS 7 aarch64 machine. But I finally found out abuild alpine-aport will damage the orginal system. How can I compile or cross compile an aarch64 alpine rootfs?

---

From: Timo Teras <[email-masked]>
Date: Mon, 20 Jun 2016 19:36:15 +0300

Hi,

On Mon, 20 Jun 2016 20:10:29 +0800 (CST)
王进 <[email-masked]> wrote:

> Hello alpine devs,
>     I want to build an aarch64 rootfs, and now I have compile
> apk-tools and abuild on CentOS 7 aarch64 machine. But I finally found
> out abuild alpine-aport will damage the orginal system. How can I
> compile or cross compile an aarch64 alpine rootfs?

The minimal documentation on cross-compile, and links to the scripts I
used to bootstrap arm from x86_64 are at:
https://wiki.alpinelinux.org/wiki/User:Fabled

However, this is some years ago, and the scripts as such probably do
not work. I was earlier trying to do bootstrap of arm7 (armv7+ w/
thumb2) build, and already fixed few things. However, I have not yet
completed this work, so there's probably little more to fix.

The scripts should give a rough idea on how it's done.

---
Unsubscribe:  [email-masked]
Help:         [email-masked]
---

---

From: Timo Teras <[email-masked]>
Date: Sat, 9 Jul 2016 11:40:45 +0300

Hi,

> compile or cross compile an aarch64 alpine rootfs?

I was just able to update the cross build scripts. I have now aarch64
userland built for alpine. I still need to look at building kernel, and
bootstrapping the rest of package.

I pushed all changes to the aports already out to alpine edge. You will
also need abuild from git as few cross build fixes were added.

The scripts used are at:
http://dev.alpinelinux.org/~tteras/bootstrap/

And the minimal set of aarch64 packages are at:
http://dev.alpinelinux.org/~tteras/bootstrap/packages/main/aarch64/

That should be enough to start a builder.

Some packages need changes to be able to build for aarch64, but most
will probably work as-is.

Thanks,
Timo

---