anbox-modules-dkms for kernel 5.7+ (ngbox-modules-dkms)

Next Generation Box Modules DKMS (ngbox)

https://aur.archlinux.org/packages/anbox-modules-dkms

Maintained by Christian Hoff @choff: https://github.com/choff/anbox-modules

The AUR package is maintained here: https://github.com/sickcodes/aur/tree/master/anbox-modules-dkms

Resurrected aur.archlinux.org/anbox-modules-dkms for maintenance

As per the Arch Wiki, https://wiki.archlinux.org/title/Anbox#Old_kernels

The dkms modules do not work on kernels ≥5.7 anymore. Follow the instructions below instead. For older kernels see Old kernels.

However, a user named @Choff has included some patches here:

anbox/anbox-modules#76

This repo will be used to fix the anbox modules for 5.7+.

This project was created for use in:

• Next Generation Anbox Style LXC: https://github.com/sickcodes/droid-native

• Android in a Docker using BlissOS: https://github.com/sickcodes/dock-droid

• binder(fs) and ashmem for use in anbox related 5.7+ Kernel distribuitons (soon to be all): https://github.com/sickcodes/anbox-modules-dkms

• WayDroid: https://github.com/waydroid/waydroid

Patches

git submodule add https://github.com/choff/anbox-modules We will use commit https://github.com/choff/anbox-modules/commit/6ddae194592451d604726a286f566d0246aef567

https://github.com/choff/anbox-modules/commit/4af9d5d591f33a0d8d7fb0735e280fa51ccef53e

Fix compilation of binder and ashmem on kernel 5.7 and later

On kernel 5.7 and later, kallsyms_lookup_name() can no longer be called from a kernel module for reasons described here: https://lwn.net/Articles/813350/ As binder really needs to use kallsysms_lookup_name() to access some kernel functions that otherwise wouldn't be accessible, KProbes are used on later kernels to get the address of kallsysms_lookup_name(). The function is afterwards used just as before. This is a very dirty hack though and the much better solution would be if all the functions that are currently resolved with kallsysms_lookup_name() would get an EXPORT_SYMBOL() annotation to make them directly accessible to kernel modules.

https://github.com/choff/anbox-modules/commit/443f984b1a4eecf464b0081820e87e351c5d7c36

Compile fixes for kernel >= 5.8

With the commit 64fe66e8a95e in the Linux kernel, the member "mmap_sem" in the struct mm_struct was renamed to "mmap_lock". This patch fixes the resulting compile errors.

https://github.com/choff/anbox-modules/commit/6ddae194592451d604726a286f566d0246aef567

Another compile fix for kernel >= 5.8

With kernel 5.8, the return value of map_kernel_range_noflush() was changed. This function now returns 0 on success (instead of the number of successfully mapped pages).

This commit adjusts binder accordingly.

Thank you so much @choff!