Add configs for arm64 binary builds.

[Fry-kun]

Adding configs for building arm64 binaries & installing them on a device as needed. This might fix #1364 :shrug:

Not sure how to build the binaries locally (didn't go through the setup docs yet), but maybe this is sufficient to build them in an action..?

[Fry-kun]

Looks like this will fail because building the binaries is not part of this workflow..?? How do you build them?

[Fry-kun]

Built nflog_arm64 locally (with latest fix commit), tested working on the phone (rest of binaries failed to build, but for now using "system binaries" for those)

[ukanth]

@Fry-kun , I recently merged config change to add support for nflog from @NeroProtagonist. Can you please check on that and update this PR if required ? Thanks !

[Fry-kun]

@ukanth Merged!

[devnoname120]

@ukanth Could you build the new binaries? arm64 binaries are missing from here and it breaks the build.

/Users/paul/dev/afwall/app/src/main/java/dev/ukanth/ufirewall/Api.java:1863: error: cannot find symbol
        if (!installBinary(ctx, R.raw.busybox_arm64, "busybox")) return false;
                                     ^
  symbol:   variable busybox_arm64
  location: class raw

I tried building them on my own but after 1+ hour of fighting with ndk, compiler, and linker issues I gave up.

[NeroProtagonist]

@devnoname120 What is your host platform, NDK version, build command line, error message, etc?

Took me a while too due to issues building on Windows but can build on Linux

I can build for, e.g. armeabi, by running the following in <repo_root>/external.

cd ~/src/afwall/external
make NDK=~/usr/android-ndk-r10e NDK_PROJECT_PATH=~/src/afwall ARCH=arm nflog
make NDK=~/usr/android-ndk-r10e NDK_PROJECT_PATH=~/src/afwall ARCH=arm busybox
make NDK=~/usr/android-ndk-r10e NDK_PROJECT_PATH=~/src/afwall ARCH=arm iptables

[devnoname120]

@NeroProtagonist Thanks for the help. At that point I don't plan to contribute/use it more, so I won't bother making it work. I appreciate your spontaneous advice though!