Add support for Android platform and other architectures (e.g. arm, aarch64) about proot-rs

[oxr463]

This is essential to our goal outlined in the project proposal:

Get proot-rs to run most of the basic tools such as bash, vim, busybox, and nginx (no
unix-socket) correctly.
The desired result of the project is to be able to start an Alpine rootfs on a rootless Android
using proot-rs and to verify the goals presented above.

[imlk0]

@KB5201314 can we close this?

Yes, since we have been able to compile and also performed a simple manual test.

Close with #55

[oxr463]

Architectures:

• x86_64
• arm32v7
• aarch64

[oxr463]

We currently have support for x86_64 and arm32v7 (See: https://www.notion.so/A-guide-to-quickly-test-alpine-and-nginx-on-Android-523a1c9b017942959153c3385ddd22a7). Support for aarch64 should be added this week.

[oxr463]

I tried testing in Termux on my Motorola G7, Android 10, and here is what I got:

./proot-rs --rootfs=./alpine --bind /dev:/dev --bind /proc:/proc
bash: ./proot-rs: Bad address
echo $?
126

[imlk0]

I tried testing in Termux on my Motorola G7, Android 10, and here is what I got:

./proot-rs --rootfs=./alpine --bind /dev:/dev --bind /proc:/proc
bash: ./proot-rs: Bad address
echo $?
126

Do you mean running proot-rs in the shell provided by the Temux app?

Also, what target are you using to build proot-rs, is it arm-unknown-linux-musleabi?

[oxr463]

Do you mean running proot-rs in the shell provided by the Temux app?

Yes, it is Bash.

Also, what target are you using to build proot-rs, is it arm-unknown-linux-musleabi?

Yes, per this, #48 (comment)

[oxr463]

termux-info
Application version:
0.117
Packages CPU architecture:
aarch64
Subscribed repositories:
# sources.list
deb https://packages.termux.org/apt/termux-main/ stable main
# game-repo (sources.list.d/game.list)
deb https://packages.termux.org/apt/termux-games games stable
# science-repo (sources.list.d/science.list)
deb https://packages.termux.org/apt/termux-science science stable
Updatable packages:
apt/stable 2.3.8 aarch64 [upgradable from: 2.3.7-4]
binutils/stable 2.37-1 aarch64 [upgradable from: 2.36.1]
golang/stable 2:1.17 aarch64 [upgradable from: 2:1.16.6]
Android version:
10
Kernel build information:
Linux localhost 4.9.206-perf+ #1 SMP PREEMPT Sun Sep 27 04:31:14 UTC 2020 aarch64 Android
Device manufacturer:
motorola
Device model:
moto g(7)

[oxr463]

@KB5201314 can we close this?